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9a799d71 AK |
1 | /******************************************************************************* |
2 | ||
3 | Intel 10 Gigabit PCI Express Linux driver | |
67359c3c | 4 | Copyright(c) 1999 - 2015 Intel Corporation. |
9a799d71 AK |
5 | |
6 | This program is free software; you can redistribute it and/or modify it | |
7 | under the terms and conditions of the GNU General Public License, | |
8 | version 2, as published by the Free Software Foundation. | |
9 | ||
10 | This program is distributed in the hope it will be useful, but WITHOUT | |
11 | ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
12 | FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
13 | more details. | |
14 | ||
15 | You should have received a copy of the GNU General Public License along with | |
16 | this program; if not, write to the Free Software Foundation, Inc., | |
17 | 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. | |
18 | ||
19 | The full GNU General Public License is included in this distribution in | |
20 | the file called "COPYING". | |
21 | ||
22 | Contact Information: | |
b89aae71 | 23 | Linux NICS <linux.nics@intel.com> |
9a799d71 AK |
24 | e1000-devel Mailing List <e1000-devel@lists.sourceforge.net> |
25 | Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 | |
26 | ||
27 | *******************************************************************************/ | |
28 | ||
29 | #include <linux/types.h> | |
30 | #include <linux/module.h> | |
31 | #include <linux/pci.h> | |
32 | #include <linux/netdevice.h> | |
33 | #include <linux/vmalloc.h> | |
34 | #include <linux/string.h> | |
35 | #include <linux/in.h> | |
a6b7a407 | 36 | #include <linux/interrupt.h> |
9a799d71 AK |
37 | #include <linux/ip.h> |
38 | #include <linux/tcp.h> | |
897ab156 | 39 | #include <linux/sctp.h> |
60127865 | 40 | #include <linux/pkt_sched.h> |
9a799d71 | 41 | #include <linux/ipv6.h> |
5a0e3ad6 | 42 | #include <linux/slab.h> |
9a799d71 AK |
43 | #include <net/checksum.h> |
44 | #include <net/ip6_checksum.h> | |
c762dff2 | 45 | #include <linux/etherdevice.h> |
9a799d71 | 46 | #include <linux/ethtool.h> |
01789349 | 47 | #include <linux/if.h> |
9a799d71 | 48 | #include <linux/if_vlan.h> |
2a47fa45 | 49 | #include <linux/if_macvlan.h> |
815cccbf | 50 | #include <linux/if_bridge.h> |
70c71606 | 51 | #include <linux/prefetch.h> |
eacd73f7 | 52 | #include <scsi/fc/fc_fcoe.h> |
3f207800 | 53 | #include <net/vxlan.h> |
9a799d71 | 54 | |
c762dff2 MP |
55 | #ifdef CONFIG_OF |
56 | #include <linux/of_net.h> | |
57 | #endif | |
58 | ||
59 | #ifdef CONFIG_SPARC | |
60 | #include <asm/idprom.h> | |
61 | #include <asm/prom.h> | |
62 | #endif | |
63 | ||
9a799d71 AK |
64 | #include "ixgbe.h" |
65 | #include "ixgbe_common.h" | |
ee5f784a | 66 | #include "ixgbe_dcb_82599.h" |
1cdd1ec8 | 67 | #include "ixgbe_sriov.h" |
67359c3c MR |
68 | #ifdef CONFIG_IXGBE_VXLAN |
69 | #include <net/vxlan.h> | |
70 | #endif | |
9a799d71 AK |
71 | |
72 | char ixgbe_driver_name[] = "ixgbe"; | |
9c8eb720 | 73 | static const char ixgbe_driver_string[] = |
e8e9f696 | 74 | "Intel(R) 10 Gigabit PCI Express Network Driver"; |
8af3c33f | 75 | #ifdef IXGBE_FCOE |
ea81875a NP |
76 | char ixgbe_default_device_descr[] = |
77 | "Intel(R) 10 Gigabit Network Connection"; | |
8af3c33f JK |
78 | #else |
79 | static char ixgbe_default_device_descr[] = | |
80 | "Intel(R) 10 Gigabit Network Connection"; | |
81 | #endif | |
9be4a9bb | 82 | #define DRV_VERSION "4.0.1-k" |
9c8eb720 | 83 | const char ixgbe_driver_version[] = DRV_VERSION; |
a52055e0 | 84 | static const char ixgbe_copyright[] = |
67359c3c | 85 | "Copyright (c) 1999-2015 Intel Corporation."; |
9a799d71 | 86 | |
f44e751b DS |
87 | static const char ixgbe_overheat_msg[] = "Network adapter has been stopped because it has over heated. Restart the computer. If the problem persists, power off the system and replace the adapter"; |
88 | ||
9a799d71 | 89 | static const struct ixgbe_info *ixgbe_info_tbl[] = { |
6a14ee0c DS |
90 | [board_82598] = &ixgbe_82598_info, |
91 | [board_82599] = &ixgbe_82599_info, | |
92 | [board_X540] = &ixgbe_X540_info, | |
93 | [board_X550] = &ixgbe_X550_info, | |
94 | [board_X550EM_x] = &ixgbe_X550EM_x_info, | |
9a799d71 AK |
95 | }; |
96 | ||
97 | /* ixgbe_pci_tbl - PCI Device ID Table | |
98 | * | |
99 | * Wildcard entries (PCI_ANY_ID) should come last | |
100 | * Last entry must be all 0s | |
101 | * | |
102 | * { Vendor ID, Device ID, SubVendor ID, SubDevice ID, | |
103 | * Class, Class Mask, private data (not used) } | |
104 | */ | |
9baa3c34 | 105 | static const struct pci_device_id ixgbe_pci_tbl[] = { |
54239c67 AD |
106 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598), board_82598 }, |
107 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598AF_DUAL_PORT), board_82598 }, | |
108 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598AF_SINGLE_PORT), board_82598 }, | |
109 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598AT), board_82598 }, | |
110 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598AT2), board_82598 }, | |
111 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598EB_CX4), board_82598 }, | |
112 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598_CX4_DUAL_PORT), board_82598 }, | |
113 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598_DA_DUAL_PORT), board_82598 }, | |
114 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598_SR_DUAL_PORT_EM), board_82598 }, | |
115 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598EB_XF_LR), board_82598 }, | |
116 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598EB_SFP_LOM), board_82598 }, | |
117 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598_BX), board_82598 }, | |
118 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_KX4), board_82599 }, | |
119 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_XAUI_LOM), board_82599 }, | |
120 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_KR), board_82599 }, | |
121 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_SFP), board_82599 }, | |
122 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_SFP_EM), board_82599 }, | |
123 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_KX4_MEZZ), board_82599 }, | |
124 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_CX4), board_82599 }, | |
125 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_BACKPLANE_FCOE), board_82599 }, | |
126 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_SFP_FCOE), board_82599 }, | |
127 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_T3_LOM), board_82599 }, | |
128 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_COMBO_BACKPLANE), board_82599 }, | |
129 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_X540T), board_X540 }, | |
130 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_SFP_SF2), board_82599 }, | |
131 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_LS), board_82599 }, | |
8f58332b | 132 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_QSFP_SF_QP), board_82599 }, |
7d145282 | 133 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599EN_SFP), board_82599 }, |
9e791e4a | 134 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_SFP_SF_QP), board_82599 }, |
df376f0d | 135 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_X540T1), board_X540 }, |
6a14ee0c DS |
136 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_X550T), board_X550}, |
137 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_X550EM_X_KX4), board_X550EM_x}, | |
138 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_X550EM_X_KR), board_X550EM_x}, | |
deda562a | 139 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_X550EM_X_10G_T), board_X550EM_x}, |
9a799d71 AK |
140 | /* required last entry */ |
141 | {0, } | |
142 | }; | |
143 | MODULE_DEVICE_TABLE(pci, ixgbe_pci_tbl); | |
144 | ||
5dd2d332 | 145 | #ifdef CONFIG_IXGBE_DCA |
bd0362dd | 146 | static int ixgbe_notify_dca(struct notifier_block *, unsigned long event, |
e8e9f696 | 147 | void *p); |
bd0362dd JC |
148 | static struct notifier_block dca_notifier = { |
149 | .notifier_call = ixgbe_notify_dca, | |
150 | .next = NULL, | |
151 | .priority = 0 | |
152 | }; | |
153 | #endif | |
154 | ||
1cdd1ec8 GR |
155 | #ifdef CONFIG_PCI_IOV |
156 | static unsigned int max_vfs; | |
157 | module_param(max_vfs, uint, 0); | |
e8e9f696 | 158 | MODULE_PARM_DESC(max_vfs, |
170e8543 | 159 | "Maximum number of virtual functions to allocate per physical function - default is zero and maximum value is 63. (Deprecated)"); |
1cdd1ec8 GR |
160 | #endif /* CONFIG_PCI_IOV */ |
161 | ||
8ef78adc PWJ |
162 | static unsigned int allow_unsupported_sfp; |
163 | module_param(allow_unsupported_sfp, uint, 0); | |
164 | MODULE_PARM_DESC(allow_unsupported_sfp, | |
165 | "Allow unsupported and untested SFP+ modules on 82599-based adapters"); | |
166 | ||
b3f4d599 | 167 | #define DEFAULT_MSG_ENABLE (NETIF_MSG_DRV|NETIF_MSG_PROBE|NETIF_MSG_LINK) |
168 | static int debug = -1; | |
169 | module_param(debug, int, 0); | |
170 | MODULE_PARM_DESC(debug, "Debug level (0=none,...,16=all)"); | |
171 | ||
9a799d71 AK |
172 | MODULE_AUTHOR("Intel Corporation, <linux.nics@intel.com>"); |
173 | MODULE_DESCRIPTION("Intel(R) 10 Gigabit PCI Express Network Driver"); | |
174 | MODULE_LICENSE("GPL"); | |
175 | MODULE_VERSION(DRV_VERSION); | |
176 | ||
14438464 MR |
177 | static bool ixgbe_check_cfg_remove(struct ixgbe_hw *hw, struct pci_dev *pdev); |
178 | ||
b8e82001 JK |
179 | static int ixgbe_read_pci_cfg_word_parent(struct ixgbe_adapter *adapter, |
180 | u32 reg, u16 *value) | |
181 | { | |
b8e82001 JK |
182 | struct pci_dev *parent_dev; |
183 | struct pci_bus *parent_bus; | |
184 | ||
185 | parent_bus = adapter->pdev->bus->parent; | |
186 | if (!parent_bus) | |
187 | return -1; | |
188 | ||
189 | parent_dev = parent_bus->self; | |
190 | if (!parent_dev) | |
191 | return -1; | |
192 | ||
c0798edf | 193 | if (!pci_is_pcie(parent_dev)) |
b8e82001 JK |
194 | return -1; |
195 | ||
c0798edf | 196 | pcie_capability_read_word(parent_dev, reg, value); |
14438464 MR |
197 | if (*value == IXGBE_FAILED_READ_CFG_WORD && |
198 | ixgbe_check_cfg_remove(&adapter->hw, parent_dev)) | |
199 | return -1; | |
b8e82001 JK |
200 | return 0; |
201 | } | |
202 | ||
203 | static s32 ixgbe_get_parent_bus_info(struct ixgbe_adapter *adapter) | |
204 | { | |
205 | struct ixgbe_hw *hw = &adapter->hw; | |
206 | u16 link_status = 0; | |
207 | int err; | |
208 | ||
209 | hw->bus.type = ixgbe_bus_type_pci_express; | |
210 | ||
211 | /* Get the negotiated link width and speed from PCI config space of the | |
212 | * parent, as this device is behind a switch | |
213 | */ | |
214 | err = ixgbe_read_pci_cfg_word_parent(adapter, 18, &link_status); | |
215 | ||
216 | /* assume caller will handle error case */ | |
217 | if (err) | |
218 | return err; | |
219 | ||
220 | hw->bus.width = ixgbe_convert_bus_width(link_status); | |
221 | hw->bus.speed = ixgbe_convert_bus_speed(link_status); | |
222 | ||
223 | return 0; | |
224 | } | |
225 | ||
e027d1ae JK |
226 | /** |
227 | * ixgbe_check_from_parent - Determine whether PCIe info should come from parent | |
228 | * @hw: hw specific details | |
229 | * | |
230 | * This function is used by probe to determine whether a device's PCI-Express | |
231 | * bandwidth details should be gathered from the parent bus instead of from the | |
232 | * device. Used to ensure that various locations all have the correct device ID | |
233 | * checks. | |
234 | */ | |
235 | static inline bool ixgbe_pcie_from_parent(struct ixgbe_hw *hw) | |
236 | { | |
237 | switch (hw->device_id) { | |
238 | case IXGBE_DEV_ID_82599_SFP_SF_QP: | |
8f58332b | 239 | case IXGBE_DEV_ID_82599_QSFP_SF_QP: |
e027d1ae JK |
240 | return true; |
241 | default: | |
242 | return false; | |
243 | } | |
244 | } | |
245 | ||
246 | static void ixgbe_check_minimum_link(struct ixgbe_adapter *adapter, | |
247 | int expected_gts) | |
248 | { | |
f9328bc6 | 249 | struct ixgbe_hw *hw = &adapter->hw; |
e027d1ae JK |
250 | int max_gts = 0; |
251 | enum pci_bus_speed speed = PCI_SPEED_UNKNOWN; | |
252 | enum pcie_link_width width = PCIE_LNK_WIDTH_UNKNOWN; | |
253 | struct pci_dev *pdev; | |
254 | ||
f9328bc6 DS |
255 | /* Some devices are not connected over PCIe and thus do not negotiate |
256 | * speed. These devices do not have valid bus info, and thus any report | |
257 | * we generate may not be correct. | |
258 | */ | |
259 | if (hw->bus.type == ixgbe_bus_type_internal) | |
260 | return; | |
261 | ||
56d1392f | 262 | /* determine whether to use the parent device */ |
e027d1ae JK |
263 | if (ixgbe_pcie_from_parent(&adapter->hw)) |
264 | pdev = adapter->pdev->bus->parent->self; | |
265 | else | |
266 | pdev = adapter->pdev; | |
267 | ||
268 | if (pcie_get_minimum_link(pdev, &speed, &width) || | |
269 | speed == PCI_SPEED_UNKNOWN || width == PCIE_LNK_WIDTH_UNKNOWN) { | |
270 | e_dev_warn("Unable to determine PCI Express bandwidth.\n"); | |
271 | return; | |
272 | } | |
273 | ||
274 | switch (speed) { | |
275 | case PCIE_SPEED_2_5GT: | |
276 | /* 8b/10b encoding reduces max throughput by 20% */ | |
277 | max_gts = 2 * width; | |
278 | break; | |
279 | case PCIE_SPEED_5_0GT: | |
280 | /* 8b/10b encoding reduces max throughput by 20% */ | |
281 | max_gts = 4 * width; | |
282 | break; | |
283 | case PCIE_SPEED_8_0GT: | |
9f0a433c | 284 | /* 128b/130b encoding reduces throughput by less than 2% */ |
e027d1ae JK |
285 | max_gts = 8 * width; |
286 | break; | |
287 | default: | |
288 | e_dev_warn("Unable to determine PCI Express bandwidth.\n"); | |
289 | return; | |
290 | } | |
291 | ||
292 | e_dev_info("PCI Express bandwidth of %dGT/s available\n", | |
293 | max_gts); | |
294 | e_dev_info("(Speed:%s, Width: x%d, Encoding Loss:%s)\n", | |
295 | (speed == PCIE_SPEED_8_0GT ? "8.0GT/s" : | |
296 | speed == PCIE_SPEED_5_0GT ? "5.0GT/s" : | |
297 | speed == PCIE_SPEED_2_5GT ? "2.5GT/s" : | |
298 | "Unknown"), | |
299 | width, | |
300 | (speed == PCIE_SPEED_2_5GT ? "20%" : | |
301 | speed == PCIE_SPEED_5_0GT ? "20%" : | |
9f0a433c | 302 | speed == PCIE_SPEED_8_0GT ? "<2%" : |
e027d1ae JK |
303 | "Unknown")); |
304 | ||
305 | if (max_gts < expected_gts) { | |
306 | e_dev_warn("This is not sufficient for optimal performance of this card.\n"); | |
307 | e_dev_warn("For optimal performance, at least %dGT/s of bandwidth is required.\n", | |
308 | expected_gts); | |
309 | e_dev_warn("A slot with more lanes and/or higher speed is suggested.\n"); | |
310 | } | |
311 | } | |
312 | ||
7086400d AD |
313 | static void ixgbe_service_event_schedule(struct ixgbe_adapter *adapter) |
314 | { | |
315 | if (!test_bit(__IXGBE_DOWN, &adapter->state) && | |
09f40aed | 316 | !test_bit(__IXGBE_REMOVING, &adapter->state) && |
7086400d AD |
317 | !test_and_set_bit(__IXGBE_SERVICE_SCHED, &adapter->state)) |
318 | schedule_work(&adapter->service_task); | |
319 | } | |
320 | ||
2a1a091c MR |
321 | static void ixgbe_remove_adapter(struct ixgbe_hw *hw) |
322 | { | |
323 | struct ixgbe_adapter *adapter = hw->back; | |
324 | ||
325 | if (!hw->hw_addr) | |
326 | return; | |
327 | hw->hw_addr = NULL; | |
328 | e_dev_err("Adapter removed\n"); | |
58cf663f MR |
329 | if (test_bit(__IXGBE_SERVICE_INITED, &adapter->state)) |
330 | ixgbe_service_event_schedule(adapter); | |
2a1a091c MR |
331 | } |
332 | ||
f8e2472f | 333 | static void ixgbe_check_remove(struct ixgbe_hw *hw, u32 reg) |
2a1a091c MR |
334 | { |
335 | u32 value; | |
336 | ||
337 | /* The following check not only optimizes a bit by not | |
338 | * performing a read on the status register when the | |
339 | * register just read was a status register read that | |
340 | * returned IXGBE_FAILED_READ_REG. It also blocks any | |
341 | * potential recursion. | |
342 | */ | |
343 | if (reg == IXGBE_STATUS) { | |
344 | ixgbe_remove_adapter(hw); | |
345 | return; | |
346 | } | |
347 | value = ixgbe_read_reg(hw, IXGBE_STATUS); | |
348 | if (value == IXGBE_FAILED_READ_REG) | |
349 | ixgbe_remove_adapter(hw); | |
350 | } | |
351 | ||
f8e2472f MR |
352 | /** |
353 | * ixgbe_read_reg - Read from device register | |
354 | * @hw: hw specific details | |
355 | * @reg: offset of register to read | |
356 | * | |
357 | * Returns : value read or IXGBE_FAILED_READ_REG if removed | |
358 | * | |
359 | * This function is used to read device registers. It checks for device | |
360 | * removal by confirming any read that returns all ones by checking the | |
361 | * status register value for all ones. This function avoids reading from | |
362 | * the hardware if a removal was previously detected in which case it | |
363 | * returns IXGBE_FAILED_READ_REG (all ones). | |
364 | */ | |
365 | u32 ixgbe_read_reg(struct ixgbe_hw *hw, u32 reg) | |
366 | { | |
367 | u8 __iomem *reg_addr = ACCESS_ONCE(hw->hw_addr); | |
368 | u32 value; | |
369 | ||
370 | if (ixgbe_removed(reg_addr)) | |
371 | return IXGBE_FAILED_READ_REG; | |
372 | value = readl(reg_addr + reg); | |
373 | if (unlikely(value == IXGBE_FAILED_READ_REG)) | |
374 | ixgbe_check_remove(hw, reg); | |
375 | return value; | |
376 | } | |
377 | ||
14438464 MR |
378 | static bool ixgbe_check_cfg_remove(struct ixgbe_hw *hw, struct pci_dev *pdev) |
379 | { | |
380 | u16 value; | |
381 | ||
382 | pci_read_config_word(pdev, PCI_VENDOR_ID, &value); | |
383 | if (value == IXGBE_FAILED_READ_CFG_WORD) { | |
384 | ixgbe_remove_adapter(hw); | |
385 | return true; | |
386 | } | |
387 | return false; | |
388 | } | |
389 | ||
390 | u16 ixgbe_read_pci_cfg_word(struct ixgbe_hw *hw, u32 reg) | |
391 | { | |
392 | struct ixgbe_adapter *adapter = hw->back; | |
393 | u16 value; | |
394 | ||
395 | if (ixgbe_removed(hw->hw_addr)) | |
396 | return IXGBE_FAILED_READ_CFG_WORD; | |
397 | pci_read_config_word(adapter->pdev, reg, &value); | |
398 | if (value == IXGBE_FAILED_READ_CFG_WORD && | |
399 | ixgbe_check_cfg_remove(hw, adapter->pdev)) | |
400 | return IXGBE_FAILED_READ_CFG_WORD; | |
401 | return value; | |
402 | } | |
403 | ||
404 | #ifdef CONFIG_PCI_IOV | |
405 | static u32 ixgbe_read_pci_cfg_dword(struct ixgbe_hw *hw, u32 reg) | |
406 | { | |
407 | struct ixgbe_adapter *adapter = hw->back; | |
408 | u32 value; | |
409 | ||
410 | if (ixgbe_removed(hw->hw_addr)) | |
411 | return IXGBE_FAILED_READ_CFG_DWORD; | |
412 | pci_read_config_dword(adapter->pdev, reg, &value); | |
413 | if (value == IXGBE_FAILED_READ_CFG_DWORD && | |
414 | ixgbe_check_cfg_remove(hw, adapter->pdev)) | |
415 | return IXGBE_FAILED_READ_CFG_DWORD; | |
416 | return value; | |
417 | } | |
418 | #endif /* CONFIG_PCI_IOV */ | |
419 | ||
ed19231c JK |
420 | void ixgbe_write_pci_cfg_word(struct ixgbe_hw *hw, u32 reg, u16 value) |
421 | { | |
422 | struct ixgbe_adapter *adapter = hw->back; | |
423 | ||
424 | if (ixgbe_removed(hw->hw_addr)) | |
425 | return; | |
426 | pci_write_config_word(adapter->pdev, reg, value); | |
427 | } | |
428 | ||
7086400d AD |
429 | static void ixgbe_service_event_complete(struct ixgbe_adapter *adapter) |
430 | { | |
431 | BUG_ON(!test_bit(__IXGBE_SERVICE_SCHED, &adapter->state)); | |
432 | ||
52f33af8 | 433 | /* flush memory to make sure state is correct before next watchdog */ |
4e857c58 | 434 | smp_mb__before_atomic(); |
7086400d AD |
435 | clear_bit(__IXGBE_SERVICE_SCHED, &adapter->state); |
436 | } | |
437 | ||
dcd79aeb TI |
438 | struct ixgbe_reg_info { |
439 | u32 ofs; | |
440 | char *name; | |
441 | }; | |
442 | ||
443 | static const struct ixgbe_reg_info ixgbe_reg_info_tbl[] = { | |
444 | ||
445 | /* General Registers */ | |
446 | {IXGBE_CTRL, "CTRL"}, | |
447 | {IXGBE_STATUS, "STATUS"}, | |
448 | {IXGBE_CTRL_EXT, "CTRL_EXT"}, | |
449 | ||
450 | /* Interrupt Registers */ | |
451 | {IXGBE_EICR, "EICR"}, | |
452 | ||
453 | /* RX Registers */ | |
454 | {IXGBE_SRRCTL(0), "SRRCTL"}, | |
455 | {IXGBE_DCA_RXCTRL(0), "DRXCTL"}, | |
456 | {IXGBE_RDLEN(0), "RDLEN"}, | |
457 | {IXGBE_RDH(0), "RDH"}, | |
458 | {IXGBE_RDT(0), "RDT"}, | |
459 | {IXGBE_RXDCTL(0), "RXDCTL"}, | |
460 | {IXGBE_RDBAL(0), "RDBAL"}, | |
461 | {IXGBE_RDBAH(0), "RDBAH"}, | |
462 | ||
463 | /* TX Registers */ | |
464 | {IXGBE_TDBAL(0), "TDBAL"}, | |
465 | {IXGBE_TDBAH(0), "TDBAH"}, | |
466 | {IXGBE_TDLEN(0), "TDLEN"}, | |
467 | {IXGBE_TDH(0), "TDH"}, | |
468 | {IXGBE_TDT(0), "TDT"}, | |
469 | {IXGBE_TXDCTL(0), "TXDCTL"}, | |
470 | ||
471 | /* List Terminator */ | |
ca8dfe25 | 472 | { .name = NULL } |
dcd79aeb TI |
473 | }; |
474 | ||
475 | ||
476 | /* | |
477 | * ixgbe_regdump - register printout routine | |
478 | */ | |
479 | static void ixgbe_regdump(struct ixgbe_hw *hw, struct ixgbe_reg_info *reginfo) | |
480 | { | |
481 | int i = 0, j = 0; | |
482 | char rname[16]; | |
483 | u32 regs[64]; | |
484 | ||
485 | switch (reginfo->ofs) { | |
486 | case IXGBE_SRRCTL(0): | |
487 | for (i = 0; i < 64; i++) | |
488 | regs[i] = IXGBE_READ_REG(hw, IXGBE_SRRCTL(i)); | |
489 | break; | |
490 | case IXGBE_DCA_RXCTRL(0): | |
491 | for (i = 0; i < 64; i++) | |
492 | regs[i] = IXGBE_READ_REG(hw, IXGBE_DCA_RXCTRL(i)); | |
493 | break; | |
494 | case IXGBE_RDLEN(0): | |
495 | for (i = 0; i < 64; i++) | |
496 | regs[i] = IXGBE_READ_REG(hw, IXGBE_RDLEN(i)); | |
497 | break; | |
498 | case IXGBE_RDH(0): | |
499 | for (i = 0; i < 64; i++) | |
500 | regs[i] = IXGBE_READ_REG(hw, IXGBE_RDH(i)); | |
501 | break; | |
502 | case IXGBE_RDT(0): | |
503 | for (i = 0; i < 64; i++) | |
504 | regs[i] = IXGBE_READ_REG(hw, IXGBE_RDT(i)); | |
505 | break; | |
506 | case IXGBE_RXDCTL(0): | |
507 | for (i = 0; i < 64; i++) | |
508 | regs[i] = IXGBE_READ_REG(hw, IXGBE_RXDCTL(i)); | |
509 | break; | |
510 | case IXGBE_RDBAL(0): | |
511 | for (i = 0; i < 64; i++) | |
512 | regs[i] = IXGBE_READ_REG(hw, IXGBE_RDBAL(i)); | |
513 | break; | |
514 | case IXGBE_RDBAH(0): | |
515 | for (i = 0; i < 64; i++) | |
516 | regs[i] = IXGBE_READ_REG(hw, IXGBE_RDBAH(i)); | |
517 | break; | |
518 | case IXGBE_TDBAL(0): | |
519 | for (i = 0; i < 64; i++) | |
520 | regs[i] = IXGBE_READ_REG(hw, IXGBE_TDBAL(i)); | |
521 | break; | |
522 | case IXGBE_TDBAH(0): | |
523 | for (i = 0; i < 64; i++) | |
524 | regs[i] = IXGBE_READ_REG(hw, IXGBE_TDBAH(i)); | |
525 | break; | |
526 | case IXGBE_TDLEN(0): | |
527 | for (i = 0; i < 64; i++) | |
528 | regs[i] = IXGBE_READ_REG(hw, IXGBE_TDLEN(i)); | |
529 | break; | |
530 | case IXGBE_TDH(0): | |
531 | for (i = 0; i < 64; i++) | |
532 | regs[i] = IXGBE_READ_REG(hw, IXGBE_TDH(i)); | |
533 | break; | |
534 | case IXGBE_TDT(0): | |
535 | for (i = 0; i < 64; i++) | |
536 | regs[i] = IXGBE_READ_REG(hw, IXGBE_TDT(i)); | |
537 | break; | |
538 | case IXGBE_TXDCTL(0): | |
539 | for (i = 0; i < 64; i++) | |
540 | regs[i] = IXGBE_READ_REG(hw, IXGBE_TXDCTL(i)); | |
541 | break; | |
542 | default: | |
c7689578 | 543 | pr_info("%-15s %08x\n", reginfo->name, |
dcd79aeb TI |
544 | IXGBE_READ_REG(hw, reginfo->ofs)); |
545 | return; | |
546 | } | |
547 | ||
548 | for (i = 0; i < 8; i++) { | |
549 | snprintf(rname, 16, "%s[%d-%d]", reginfo->name, i*8, i*8+7); | |
c7689578 | 550 | pr_err("%-15s", rname); |
dcd79aeb | 551 | for (j = 0; j < 8; j++) |
c7689578 JP |
552 | pr_cont(" %08x", regs[i*8+j]); |
553 | pr_cont("\n"); | |
dcd79aeb TI |
554 | } |
555 | ||
556 | } | |
557 | ||
558 | /* | |
559 | * ixgbe_dump - Print registers, tx-rings and rx-rings | |
560 | */ | |
561 | static void ixgbe_dump(struct ixgbe_adapter *adapter) | |
562 | { | |
563 | struct net_device *netdev = adapter->netdev; | |
564 | struct ixgbe_hw *hw = &adapter->hw; | |
565 | struct ixgbe_reg_info *reginfo; | |
566 | int n = 0; | |
567 | struct ixgbe_ring *tx_ring; | |
729739b7 | 568 | struct ixgbe_tx_buffer *tx_buffer; |
dcd79aeb TI |
569 | union ixgbe_adv_tx_desc *tx_desc; |
570 | struct my_u0 { u64 a; u64 b; } *u0; | |
571 | struct ixgbe_ring *rx_ring; | |
572 | union ixgbe_adv_rx_desc *rx_desc; | |
573 | struct ixgbe_rx_buffer *rx_buffer_info; | |
574 | u32 staterr; | |
575 | int i = 0; | |
576 | ||
577 | if (!netif_msg_hw(adapter)) | |
578 | return; | |
579 | ||
580 | /* Print netdevice Info */ | |
581 | if (netdev) { | |
582 | dev_info(&adapter->pdev->dev, "Net device Info\n"); | |
c7689578 | 583 | pr_info("Device Name state " |
dcd79aeb | 584 | "trans_start last_rx\n"); |
c7689578 JP |
585 | pr_info("%-15s %016lX %016lX %016lX\n", |
586 | netdev->name, | |
587 | netdev->state, | |
588 | netdev->trans_start, | |
589 | netdev->last_rx); | |
dcd79aeb TI |
590 | } |
591 | ||
592 | /* Print Registers */ | |
593 | dev_info(&adapter->pdev->dev, "Register Dump\n"); | |
c7689578 | 594 | pr_info(" Register Name Value\n"); |
dcd79aeb TI |
595 | for (reginfo = (struct ixgbe_reg_info *)ixgbe_reg_info_tbl; |
596 | reginfo->name; reginfo++) { | |
597 | ixgbe_regdump(hw, reginfo); | |
598 | } | |
599 | ||
600 | /* Print TX Ring Summary */ | |
601 | if (!netdev || !netif_running(netdev)) | |
e90dd264 | 602 | return; |
dcd79aeb TI |
603 | |
604 | dev_info(&adapter->pdev->dev, "TX Rings Summary\n"); | |
8ad88e37 JH |
605 | pr_info(" %s %s %s %s\n", |
606 | "Queue [NTU] [NTC] [bi(ntc)->dma ]", | |
607 | "leng", "ntw", "timestamp"); | |
dcd79aeb TI |
608 | for (n = 0; n < adapter->num_tx_queues; n++) { |
609 | tx_ring = adapter->tx_ring[n]; | |
729739b7 | 610 | tx_buffer = &tx_ring->tx_buffer_info[tx_ring->next_to_clean]; |
8ad88e37 | 611 | pr_info(" %5d %5X %5X %016llX %08X %p %016llX\n", |
dcd79aeb | 612 | n, tx_ring->next_to_use, tx_ring->next_to_clean, |
729739b7 AD |
613 | (u64)dma_unmap_addr(tx_buffer, dma), |
614 | dma_unmap_len(tx_buffer, len), | |
615 | tx_buffer->next_to_watch, | |
616 | (u64)tx_buffer->time_stamp); | |
dcd79aeb TI |
617 | } |
618 | ||
619 | /* Print TX Rings */ | |
620 | if (!netif_msg_tx_done(adapter)) | |
621 | goto rx_ring_summary; | |
622 | ||
623 | dev_info(&adapter->pdev->dev, "TX Rings Dump\n"); | |
624 | ||
625 | /* Transmit Descriptor Formats | |
626 | * | |
39ac868a | 627 | * 82598 Advanced Transmit Descriptor |
dcd79aeb TI |
628 | * +--------------------------------------------------------------+ |
629 | * 0 | Buffer Address [63:0] | | |
630 | * +--------------------------------------------------------------+ | |
39ac868a | 631 | * 8 | PAYLEN | POPTS | IDX | STA | DCMD |DTYP | RSV | DTALEN | |
dcd79aeb TI |
632 | * +--------------------------------------------------------------+ |
633 | * 63 46 45 40 39 36 35 32 31 24 23 20 19 0 | |
39ac868a JH |
634 | * |
635 | * 82598 Advanced Transmit Descriptor (Write-Back Format) | |
636 | * +--------------------------------------------------------------+ | |
637 | * 0 | RSV [63:0] | | |
638 | * +--------------------------------------------------------------+ | |
639 | * 8 | RSV | STA | NXTSEQ | | |
640 | * +--------------------------------------------------------------+ | |
641 | * 63 36 35 32 31 0 | |
642 | * | |
643 | * 82599+ Advanced Transmit Descriptor | |
644 | * +--------------------------------------------------------------+ | |
645 | * 0 | Buffer Address [63:0] | | |
646 | * +--------------------------------------------------------------+ | |
647 | * 8 |PAYLEN |POPTS|CC|IDX |STA |DCMD |DTYP |MAC |RSV |DTALEN | | |
648 | * +--------------------------------------------------------------+ | |
649 | * 63 46 45 40 39 38 36 35 32 31 24 23 20 19 18 17 16 15 0 | |
650 | * | |
651 | * 82599+ Advanced Transmit Descriptor (Write-Back Format) | |
652 | * +--------------------------------------------------------------+ | |
653 | * 0 | RSV [63:0] | | |
654 | * +--------------------------------------------------------------+ | |
655 | * 8 | RSV | STA | RSV | | |
656 | * +--------------------------------------------------------------+ | |
657 | * 63 36 35 32 31 0 | |
dcd79aeb TI |
658 | */ |
659 | ||
660 | for (n = 0; n < adapter->num_tx_queues; n++) { | |
661 | tx_ring = adapter->tx_ring[n]; | |
c7689578 JP |
662 | pr_info("------------------------------------\n"); |
663 | pr_info("TX QUEUE INDEX = %d\n", tx_ring->queue_index); | |
664 | pr_info("------------------------------------\n"); | |
8ad88e37 JH |
665 | pr_info("%s%s %s %s %s %s\n", |
666 | "T [desc] [address 63:0 ] ", | |
667 | "[PlPOIdStDDt Ln] [bi->dma ] ", | |
668 | "leng", "ntw", "timestamp", "bi->skb"); | |
dcd79aeb TI |
669 | |
670 | for (i = 0; tx_ring->desc && (i < tx_ring->count); i++) { | |
e4f74028 | 671 | tx_desc = IXGBE_TX_DESC(tx_ring, i); |
729739b7 | 672 | tx_buffer = &tx_ring->tx_buffer_info[i]; |
dcd79aeb | 673 | u0 = (struct my_u0 *)tx_desc; |
8ad88e37 JH |
674 | if (dma_unmap_len(tx_buffer, len) > 0) { |
675 | pr_info("T [0x%03X] %016llX %016llX %016llX %08X %p %016llX %p", | |
676 | i, | |
677 | le64_to_cpu(u0->a), | |
678 | le64_to_cpu(u0->b), | |
679 | (u64)dma_unmap_addr(tx_buffer, dma), | |
729739b7 | 680 | dma_unmap_len(tx_buffer, len), |
8ad88e37 JH |
681 | tx_buffer->next_to_watch, |
682 | (u64)tx_buffer->time_stamp, | |
683 | tx_buffer->skb); | |
684 | if (i == tx_ring->next_to_use && | |
685 | i == tx_ring->next_to_clean) | |
686 | pr_cont(" NTC/U\n"); | |
687 | else if (i == tx_ring->next_to_use) | |
688 | pr_cont(" NTU\n"); | |
689 | else if (i == tx_ring->next_to_clean) | |
690 | pr_cont(" NTC\n"); | |
691 | else | |
692 | pr_cont("\n"); | |
693 | ||
694 | if (netif_msg_pktdata(adapter) && | |
695 | tx_buffer->skb) | |
696 | print_hex_dump(KERN_INFO, "", | |
697 | DUMP_PREFIX_ADDRESS, 16, 1, | |
698 | tx_buffer->skb->data, | |
699 | dma_unmap_len(tx_buffer, len), | |
700 | true); | |
701 | } | |
dcd79aeb TI |
702 | } |
703 | } | |
704 | ||
705 | /* Print RX Rings Summary */ | |
706 | rx_ring_summary: | |
707 | dev_info(&adapter->pdev->dev, "RX Rings Summary\n"); | |
c7689578 | 708 | pr_info("Queue [NTU] [NTC]\n"); |
dcd79aeb TI |
709 | for (n = 0; n < adapter->num_rx_queues; n++) { |
710 | rx_ring = adapter->rx_ring[n]; | |
c7689578 JP |
711 | pr_info("%5d %5X %5X\n", |
712 | n, rx_ring->next_to_use, rx_ring->next_to_clean); | |
dcd79aeb TI |
713 | } |
714 | ||
715 | /* Print RX Rings */ | |
716 | if (!netif_msg_rx_status(adapter)) | |
e90dd264 | 717 | return; |
dcd79aeb TI |
718 | |
719 | dev_info(&adapter->pdev->dev, "RX Rings Dump\n"); | |
720 | ||
39ac868a JH |
721 | /* Receive Descriptor Formats |
722 | * | |
723 | * 82598 Advanced Receive Descriptor (Read) Format | |
dcd79aeb TI |
724 | * 63 1 0 |
725 | * +-----------------------------------------------------+ | |
726 | * 0 | Packet Buffer Address [63:1] |A0/NSE| | |
727 | * +----------------------------------------------+------+ | |
728 | * 8 | Header Buffer Address [63:1] | DD | | |
729 | * +-----------------------------------------------------+ | |
730 | * | |
731 | * | |
39ac868a | 732 | * 82598 Advanced Receive Descriptor (Write-Back) Format |
dcd79aeb TI |
733 | * |
734 | * 63 48 47 32 31 30 21 20 16 15 4 3 0 | |
735 | * +------------------------------------------------------+ | |
39ac868a JH |
736 | * 0 | RSS Hash / |SPH| HDR_LEN | RSV |Packet| RSS | |
737 | * | Packet | IP | | | | Type | Type | | |
738 | * | Checksum | Ident | | | | | | | |
dcd79aeb TI |
739 | * +------------------------------------------------------+ |
740 | * 8 | VLAN Tag | Length | Extended Error | Extended Status | | |
741 | * +------------------------------------------------------+ | |
742 | * 63 48 47 32 31 20 19 0 | |
39ac868a JH |
743 | * |
744 | * 82599+ Advanced Receive Descriptor (Read) Format | |
745 | * 63 1 0 | |
746 | * +-----------------------------------------------------+ | |
747 | * 0 | Packet Buffer Address [63:1] |A0/NSE| | |
748 | * +----------------------------------------------+------+ | |
749 | * 8 | Header Buffer Address [63:1] | DD | | |
750 | * +-----------------------------------------------------+ | |
751 | * | |
752 | * | |
753 | * 82599+ Advanced Receive Descriptor (Write-Back) Format | |
754 | * | |
755 | * 63 48 47 32 31 30 21 20 17 16 4 3 0 | |
756 | * +------------------------------------------------------+ | |
757 | * 0 |RSS / Frag Checksum|SPH| HDR_LEN |RSC- |Packet| RSS | | |
758 | * |/ RTT / PCoE_PARAM | | | CNT | Type | Type | | |
759 | * |/ Flow Dir Flt ID | | | | | | | |
760 | * +------------------------------------------------------+ | |
761 | * 8 | VLAN Tag | Length |Extended Error| Xtnd Status/NEXTP | | |
762 | * +------------------------------------------------------+ | |
763 | * 63 48 47 32 31 20 19 0 | |
dcd79aeb | 764 | */ |
39ac868a | 765 | |
dcd79aeb TI |
766 | for (n = 0; n < adapter->num_rx_queues; n++) { |
767 | rx_ring = adapter->rx_ring[n]; | |
c7689578 JP |
768 | pr_info("------------------------------------\n"); |
769 | pr_info("RX QUEUE INDEX = %d\n", rx_ring->queue_index); | |
770 | pr_info("------------------------------------\n"); | |
8ad88e37 JH |
771 | pr_info("%s%s%s", |
772 | "R [desc] [ PktBuf A0] ", | |
773 | "[ HeadBuf DD] [bi->dma ] [bi->skb ] ", | |
dcd79aeb | 774 | "<-- Adv Rx Read format\n"); |
8ad88e37 JH |
775 | pr_info("%s%s%s", |
776 | "RWB[desc] [PcsmIpSHl PtRs] ", | |
777 | "[vl er S cks ln] ---------------- [bi->skb ] ", | |
dcd79aeb TI |
778 | "<-- Adv Rx Write-Back format\n"); |
779 | ||
780 | for (i = 0; i < rx_ring->count; i++) { | |
781 | rx_buffer_info = &rx_ring->rx_buffer_info[i]; | |
e4f74028 | 782 | rx_desc = IXGBE_RX_DESC(rx_ring, i); |
dcd79aeb TI |
783 | u0 = (struct my_u0 *)rx_desc; |
784 | staterr = le32_to_cpu(rx_desc->wb.upper.status_error); | |
785 | if (staterr & IXGBE_RXD_STAT_DD) { | |
786 | /* Descriptor Done */ | |
c7689578 | 787 | pr_info("RWB[0x%03X] %016llX " |
dcd79aeb TI |
788 | "%016llX ---------------- %p", i, |
789 | le64_to_cpu(u0->a), | |
790 | le64_to_cpu(u0->b), | |
791 | rx_buffer_info->skb); | |
792 | } else { | |
c7689578 | 793 | pr_info("R [0x%03X] %016llX " |
dcd79aeb TI |
794 | "%016llX %016llX %p", i, |
795 | le64_to_cpu(u0->a), | |
796 | le64_to_cpu(u0->b), | |
797 | (u64)rx_buffer_info->dma, | |
798 | rx_buffer_info->skb); | |
799 | ||
9c50c035 ET |
800 | if (netif_msg_pktdata(adapter) && |
801 | rx_buffer_info->dma) { | |
dcd79aeb TI |
802 | print_hex_dump(KERN_INFO, "", |
803 | DUMP_PREFIX_ADDRESS, 16, 1, | |
9c50c035 ET |
804 | page_address(rx_buffer_info->page) + |
805 | rx_buffer_info->page_offset, | |
f800326d | 806 | ixgbe_rx_bufsz(rx_ring), true); |
dcd79aeb TI |
807 | } |
808 | } | |
809 | ||
810 | if (i == rx_ring->next_to_use) | |
c7689578 | 811 | pr_cont(" NTU\n"); |
dcd79aeb | 812 | else if (i == rx_ring->next_to_clean) |
c7689578 | 813 | pr_cont(" NTC\n"); |
dcd79aeb | 814 | else |
c7689578 | 815 | pr_cont("\n"); |
dcd79aeb TI |
816 | |
817 | } | |
818 | } | |
dcd79aeb TI |
819 | } |
820 | ||
5eba3699 AV |
821 | static void ixgbe_release_hw_control(struct ixgbe_adapter *adapter) |
822 | { | |
823 | u32 ctrl_ext; | |
824 | ||
825 | /* Let firmware take over control of h/w */ | |
826 | ctrl_ext = IXGBE_READ_REG(&adapter->hw, IXGBE_CTRL_EXT); | |
827 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_CTRL_EXT, | |
e8e9f696 | 828 | ctrl_ext & ~IXGBE_CTRL_EXT_DRV_LOAD); |
5eba3699 AV |
829 | } |
830 | ||
831 | static void ixgbe_get_hw_control(struct ixgbe_adapter *adapter) | |
832 | { | |
833 | u32 ctrl_ext; | |
834 | ||
835 | /* Let firmware know the driver has taken over */ | |
836 | ctrl_ext = IXGBE_READ_REG(&adapter->hw, IXGBE_CTRL_EXT); | |
837 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_CTRL_EXT, | |
e8e9f696 | 838 | ctrl_ext | IXGBE_CTRL_EXT_DRV_LOAD); |
5eba3699 | 839 | } |
9a799d71 | 840 | |
49ce9c2c | 841 | /** |
e8e26350 PW |
842 | * ixgbe_set_ivar - set the IVAR registers, mapping interrupt causes to vectors |
843 | * @adapter: pointer to adapter struct | |
844 | * @direction: 0 for Rx, 1 for Tx, -1 for other causes | |
845 | * @queue: queue to map the corresponding interrupt to | |
846 | * @msix_vector: the vector to map to the corresponding queue | |
847 | * | |
848 | */ | |
849 | static void ixgbe_set_ivar(struct ixgbe_adapter *adapter, s8 direction, | |
e8e9f696 | 850 | u8 queue, u8 msix_vector) |
9a799d71 AK |
851 | { |
852 | u32 ivar, index; | |
e8e26350 PW |
853 | struct ixgbe_hw *hw = &adapter->hw; |
854 | switch (hw->mac.type) { | |
855 | case ixgbe_mac_82598EB: | |
856 | msix_vector |= IXGBE_IVAR_ALLOC_VAL; | |
857 | if (direction == -1) | |
858 | direction = 0; | |
859 | index = (((direction * 64) + queue) >> 2) & 0x1F; | |
860 | ivar = IXGBE_READ_REG(hw, IXGBE_IVAR(index)); | |
861 | ivar &= ~(0xFF << (8 * (queue & 0x3))); | |
862 | ivar |= (msix_vector << (8 * (queue & 0x3))); | |
863 | IXGBE_WRITE_REG(hw, IXGBE_IVAR(index), ivar); | |
864 | break; | |
865 | case ixgbe_mac_82599EB: | |
b93a2226 | 866 | case ixgbe_mac_X540: |
9a75a1ac DS |
867 | case ixgbe_mac_X550: |
868 | case ixgbe_mac_X550EM_x: | |
e8e26350 PW |
869 | if (direction == -1) { |
870 | /* other causes */ | |
871 | msix_vector |= IXGBE_IVAR_ALLOC_VAL; | |
872 | index = ((queue & 1) * 8); | |
873 | ivar = IXGBE_READ_REG(&adapter->hw, IXGBE_IVAR_MISC); | |
874 | ivar &= ~(0xFF << index); | |
875 | ivar |= (msix_vector << index); | |
876 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_IVAR_MISC, ivar); | |
877 | break; | |
878 | } else { | |
879 | /* tx or rx causes */ | |
880 | msix_vector |= IXGBE_IVAR_ALLOC_VAL; | |
881 | index = ((16 * (queue & 1)) + (8 * direction)); | |
882 | ivar = IXGBE_READ_REG(hw, IXGBE_IVAR(queue >> 1)); | |
883 | ivar &= ~(0xFF << index); | |
884 | ivar |= (msix_vector << index); | |
885 | IXGBE_WRITE_REG(hw, IXGBE_IVAR(queue >> 1), ivar); | |
886 | break; | |
887 | } | |
888 | default: | |
889 | break; | |
890 | } | |
9a799d71 AK |
891 | } |
892 | ||
fe49f04a | 893 | static inline void ixgbe_irq_rearm_queues(struct ixgbe_adapter *adapter, |
e8e9f696 | 894 | u64 qmask) |
fe49f04a AD |
895 | { |
896 | u32 mask; | |
897 | ||
bd508178 AD |
898 | switch (adapter->hw.mac.type) { |
899 | case ixgbe_mac_82598EB: | |
fe49f04a AD |
900 | mask = (IXGBE_EIMS_RTX_QUEUE & qmask); |
901 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_EICS, mask); | |
bd508178 AD |
902 | break; |
903 | case ixgbe_mac_82599EB: | |
b93a2226 | 904 | case ixgbe_mac_X540: |
9a75a1ac DS |
905 | case ixgbe_mac_X550: |
906 | case ixgbe_mac_X550EM_x: | |
fe49f04a AD |
907 | mask = (qmask & 0xFFFFFFFF); |
908 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_EICS_EX(0), mask); | |
909 | mask = (qmask >> 32); | |
910 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_EICS_EX(1), mask); | |
bd508178 AD |
911 | break; |
912 | default: | |
913 | break; | |
fe49f04a AD |
914 | } |
915 | } | |
916 | ||
729739b7 AD |
917 | void ixgbe_unmap_and_free_tx_resource(struct ixgbe_ring *ring, |
918 | struct ixgbe_tx_buffer *tx_buffer) | |
9a799d71 | 919 | { |
729739b7 AD |
920 | if (tx_buffer->skb) { |
921 | dev_kfree_skb_any(tx_buffer->skb); | |
922 | if (dma_unmap_len(tx_buffer, len)) | |
d3d00239 | 923 | dma_unmap_single(ring->dev, |
729739b7 AD |
924 | dma_unmap_addr(tx_buffer, dma), |
925 | dma_unmap_len(tx_buffer, len), | |
926 | DMA_TO_DEVICE); | |
927 | } else if (dma_unmap_len(tx_buffer, len)) { | |
928 | dma_unmap_page(ring->dev, | |
929 | dma_unmap_addr(tx_buffer, dma), | |
930 | dma_unmap_len(tx_buffer, len), | |
931 | DMA_TO_DEVICE); | |
e5a43549 | 932 | } |
729739b7 AD |
933 | tx_buffer->next_to_watch = NULL; |
934 | tx_buffer->skb = NULL; | |
935 | dma_unmap_len_set(tx_buffer, len, 0); | |
936 | /* tx_buffer must be completely set up in the transmit path */ | |
9a799d71 AK |
937 | } |
938 | ||
943561d3 | 939 | static void ixgbe_update_xoff_rx_lfc(struct ixgbe_adapter *adapter) |
c84d324c JF |
940 | { |
941 | struct ixgbe_hw *hw = &adapter->hw; | |
942 | struct ixgbe_hw_stats *hwstats = &adapter->stats; | |
c84d324c | 943 | int i; |
943561d3 | 944 | u32 data; |
c84d324c | 945 | |
943561d3 AD |
946 | if ((hw->fc.current_mode != ixgbe_fc_full) && |
947 | (hw->fc.current_mode != ixgbe_fc_rx_pause)) | |
948 | return; | |
c84d324c | 949 | |
943561d3 AD |
950 | switch (hw->mac.type) { |
951 | case ixgbe_mac_82598EB: | |
952 | data = IXGBE_READ_REG(hw, IXGBE_LXOFFRXC); | |
953 | break; | |
954 | default: | |
955 | data = IXGBE_READ_REG(hw, IXGBE_LXOFFRXCNT); | |
956 | } | |
957 | hwstats->lxoffrxc += data; | |
c84d324c | 958 | |
943561d3 AD |
959 | /* refill credits (no tx hang) if we received xoff */ |
960 | if (!data) | |
c84d324c | 961 | return; |
943561d3 AD |
962 | |
963 | for (i = 0; i < adapter->num_tx_queues; i++) | |
964 | clear_bit(__IXGBE_HANG_CHECK_ARMED, | |
965 | &adapter->tx_ring[i]->state); | |
966 | } | |
967 | ||
968 | static void ixgbe_update_xoff_received(struct ixgbe_adapter *adapter) | |
969 | { | |
970 | struct ixgbe_hw *hw = &adapter->hw; | |
971 | struct ixgbe_hw_stats *hwstats = &adapter->stats; | |
972 | u32 xoff[8] = {0}; | |
2afaa00d | 973 | u8 tc; |
943561d3 AD |
974 | int i; |
975 | bool pfc_en = adapter->dcb_cfg.pfc_mode_enable; | |
976 | ||
977 | if (adapter->ixgbe_ieee_pfc) | |
978 | pfc_en |= !!(adapter->ixgbe_ieee_pfc->pfc_en); | |
979 | ||
980 | if (!(adapter->flags & IXGBE_FLAG_DCB_ENABLED) || !pfc_en) { | |
981 | ixgbe_update_xoff_rx_lfc(adapter); | |
c84d324c | 982 | return; |
943561d3 | 983 | } |
c84d324c JF |
984 | |
985 | /* update stats for each tc, only valid with PFC enabled */ | |
986 | for (i = 0; i < MAX_TX_PACKET_BUFFERS; i++) { | |
2afaa00d PN |
987 | u32 pxoffrxc; |
988 | ||
c84d324c JF |
989 | switch (hw->mac.type) { |
990 | case ixgbe_mac_82598EB: | |
2afaa00d | 991 | pxoffrxc = IXGBE_READ_REG(hw, IXGBE_PXOFFRXC(i)); |
bd508178 | 992 | break; |
c84d324c | 993 | default: |
2afaa00d | 994 | pxoffrxc = IXGBE_READ_REG(hw, IXGBE_PXOFFRXCNT(i)); |
26f23d82 | 995 | } |
2afaa00d PN |
996 | hwstats->pxoffrxc[i] += pxoffrxc; |
997 | /* Get the TC for given UP */ | |
998 | tc = netdev_get_prio_tc_map(adapter->netdev, i); | |
999 | xoff[tc] += pxoffrxc; | |
c84d324c JF |
1000 | } |
1001 | ||
1002 | /* disarm tx queues that have received xoff frames */ | |
1003 | for (i = 0; i < adapter->num_tx_queues; i++) { | |
1004 | struct ixgbe_ring *tx_ring = adapter->tx_ring[i]; | |
c84d324c | 1005 | |
2afaa00d | 1006 | tc = tx_ring->dcb_tc; |
c84d324c JF |
1007 | if (xoff[tc]) |
1008 | clear_bit(__IXGBE_HANG_CHECK_ARMED, &tx_ring->state); | |
26f23d82 | 1009 | } |
26f23d82 YZ |
1010 | } |
1011 | ||
c84d324c | 1012 | static u64 ixgbe_get_tx_completed(struct ixgbe_ring *ring) |
9a799d71 | 1013 | { |
7d7ce682 | 1014 | return ring->stats.packets; |
c84d324c JF |
1015 | } |
1016 | ||
1017 | static u64 ixgbe_get_tx_pending(struct ixgbe_ring *ring) | |
1018 | { | |
2a47fa45 JF |
1019 | struct ixgbe_adapter *adapter; |
1020 | struct ixgbe_hw *hw; | |
1021 | u32 head, tail; | |
1022 | ||
1023 | if (ring->l2_accel_priv) | |
1024 | adapter = ring->l2_accel_priv->real_adapter; | |
1025 | else | |
1026 | adapter = netdev_priv(ring->netdev); | |
e01c31a5 | 1027 | |
2a47fa45 JF |
1028 | hw = &adapter->hw; |
1029 | head = IXGBE_READ_REG(hw, IXGBE_TDH(ring->reg_idx)); | |
1030 | tail = IXGBE_READ_REG(hw, IXGBE_TDT(ring->reg_idx)); | |
c84d324c JF |
1031 | |
1032 | if (head != tail) | |
1033 | return (head < tail) ? | |
1034 | tail - head : (tail + ring->count - head); | |
1035 | ||
1036 | return 0; | |
1037 | } | |
1038 | ||
1039 | static inline bool ixgbe_check_tx_hang(struct ixgbe_ring *tx_ring) | |
1040 | { | |
1041 | u32 tx_done = ixgbe_get_tx_completed(tx_ring); | |
1042 | u32 tx_done_old = tx_ring->tx_stats.tx_done_old; | |
1043 | u32 tx_pending = ixgbe_get_tx_pending(tx_ring); | |
c84d324c | 1044 | |
7d637bcc | 1045 | clear_check_for_tx_hang(tx_ring); |
c84d324c JF |
1046 | |
1047 | /* | |
1048 | * Check for a hung queue, but be thorough. This verifies | |
1049 | * that a transmit has been completed since the previous | |
1050 | * check AND there is at least one packet pending. The | |
1051 | * ARMED bit is set to indicate a potential hang. The | |
1052 | * bit is cleared if a pause frame is received to remove | |
1053 | * false hang detection due to PFC or 802.3x frames. By | |
1054 | * requiring this to fail twice we avoid races with | |
1055 | * pfc clearing the ARMED bit and conditions where we | |
1056 | * run the check_tx_hang logic with a transmit completion | |
1057 | * pending but without time to complete it yet. | |
1058 | */ | |
e90dd264 | 1059 | if (tx_done_old == tx_done && tx_pending) |
c84d324c | 1060 | /* make sure it is true for two checks in a row */ |
e90dd264 MR |
1061 | return test_and_set_bit(__IXGBE_HANG_CHECK_ARMED, |
1062 | &tx_ring->state); | |
1063 | /* update completed stats and continue */ | |
1064 | tx_ring->tx_stats.tx_done_old = tx_done; | |
1065 | /* reset the countdown */ | |
1066 | clear_bit(__IXGBE_HANG_CHECK_ARMED, &tx_ring->state); | |
9a799d71 | 1067 | |
e90dd264 | 1068 | return false; |
9a799d71 AK |
1069 | } |
1070 | ||
c83c6cbd AD |
1071 | /** |
1072 | * ixgbe_tx_timeout_reset - initiate reset due to Tx timeout | |
1073 | * @adapter: driver private struct | |
1074 | **/ | |
1075 | static void ixgbe_tx_timeout_reset(struct ixgbe_adapter *adapter) | |
1076 | { | |
1077 | ||
1078 | /* Do the reset outside of interrupt context */ | |
1079 | if (!test_bit(__IXGBE_DOWN, &adapter->state)) { | |
1080 | adapter->flags2 |= IXGBE_FLAG2_RESET_REQUESTED; | |
12ff3f3b | 1081 | e_warn(drv, "initiating reset due to tx timeout\n"); |
c83c6cbd AD |
1082 | ixgbe_service_event_schedule(adapter); |
1083 | } | |
1084 | } | |
e01c31a5 | 1085 | |
9a799d71 AK |
1086 | /** |
1087 | * ixgbe_clean_tx_irq - Reclaim resources after transmit completes | |
fe49f04a | 1088 | * @q_vector: structure containing interrupt and ring information |
e01c31a5 | 1089 | * @tx_ring: tx ring to clean |
9a799d71 | 1090 | **/ |
fe49f04a | 1091 | static bool ixgbe_clean_tx_irq(struct ixgbe_q_vector *q_vector, |
e8e9f696 | 1092 | struct ixgbe_ring *tx_ring) |
9a799d71 | 1093 | { |
fe49f04a | 1094 | struct ixgbe_adapter *adapter = q_vector->adapter; |
d3d00239 AD |
1095 | struct ixgbe_tx_buffer *tx_buffer; |
1096 | union ixgbe_adv_tx_desc *tx_desc; | |
e01c31a5 | 1097 | unsigned int total_bytes = 0, total_packets = 0; |
59224555 | 1098 | unsigned int budget = q_vector->tx.work_limit; |
729739b7 AD |
1099 | unsigned int i = tx_ring->next_to_clean; |
1100 | ||
1101 | if (test_bit(__IXGBE_DOWN, &adapter->state)) | |
1102 | return true; | |
9a799d71 | 1103 | |
d3d00239 | 1104 | tx_buffer = &tx_ring->tx_buffer_info[i]; |
e4f74028 | 1105 | tx_desc = IXGBE_TX_DESC(tx_ring, i); |
729739b7 | 1106 | i -= tx_ring->count; |
12207e49 | 1107 | |
729739b7 | 1108 | do { |
d3d00239 AD |
1109 | union ixgbe_adv_tx_desc *eop_desc = tx_buffer->next_to_watch; |
1110 | ||
1111 | /* if next_to_watch is not set then there is no work pending */ | |
1112 | if (!eop_desc) | |
1113 | break; | |
1114 | ||
7f83a9e6 | 1115 | /* prevent any other reads prior to eop_desc */ |
7e63bf49 | 1116 | read_barrier_depends(); |
7f83a9e6 | 1117 | |
d3d00239 AD |
1118 | /* if DD is not set pending work has not been completed */ |
1119 | if (!(eop_desc->wb.status & cpu_to_le32(IXGBE_TXD_STAT_DD))) | |
1120 | break; | |
8ad494b0 | 1121 | |
d3d00239 AD |
1122 | /* clear next_to_watch to prevent false hangs */ |
1123 | tx_buffer->next_to_watch = NULL; | |
8ad494b0 | 1124 | |
091a6246 AD |
1125 | /* update the statistics for this packet */ |
1126 | total_bytes += tx_buffer->bytecount; | |
1127 | total_packets += tx_buffer->gso_segs; | |
1128 | ||
fd0db0ed | 1129 | /* free the skb */ |
fe1f2a97 | 1130 | dev_consume_skb_any(tx_buffer->skb); |
fd0db0ed | 1131 | |
729739b7 AD |
1132 | /* unmap skb header data */ |
1133 | dma_unmap_single(tx_ring->dev, | |
1134 | dma_unmap_addr(tx_buffer, dma), | |
1135 | dma_unmap_len(tx_buffer, len), | |
1136 | DMA_TO_DEVICE); | |
1137 | ||
fd0db0ed AD |
1138 | /* clear tx_buffer data */ |
1139 | tx_buffer->skb = NULL; | |
729739b7 | 1140 | dma_unmap_len_set(tx_buffer, len, 0); |
fd0db0ed | 1141 | |
729739b7 AD |
1142 | /* unmap remaining buffers */ |
1143 | while (tx_desc != eop_desc) { | |
d3d00239 AD |
1144 | tx_buffer++; |
1145 | tx_desc++; | |
8ad494b0 | 1146 | i++; |
729739b7 AD |
1147 | if (unlikely(!i)) { |
1148 | i -= tx_ring->count; | |
d3d00239 | 1149 | tx_buffer = tx_ring->tx_buffer_info; |
e4f74028 | 1150 | tx_desc = IXGBE_TX_DESC(tx_ring, 0); |
e092be60 | 1151 | } |
e01c31a5 | 1152 | |
729739b7 AD |
1153 | /* unmap any remaining paged data */ |
1154 | if (dma_unmap_len(tx_buffer, len)) { | |
1155 | dma_unmap_page(tx_ring->dev, | |
1156 | dma_unmap_addr(tx_buffer, dma), | |
1157 | dma_unmap_len(tx_buffer, len), | |
1158 | DMA_TO_DEVICE); | |
1159 | dma_unmap_len_set(tx_buffer, len, 0); | |
1160 | } | |
1161 | } | |
1162 | ||
1163 | /* move us one more past the eop_desc for start of next pkt */ | |
1164 | tx_buffer++; | |
1165 | tx_desc++; | |
1166 | i++; | |
1167 | if (unlikely(!i)) { | |
1168 | i -= tx_ring->count; | |
1169 | tx_buffer = tx_ring->tx_buffer_info; | |
1170 | tx_desc = IXGBE_TX_DESC(tx_ring, 0); | |
1171 | } | |
1172 | ||
1173 | /* issue prefetch for next Tx descriptor */ | |
1174 | prefetch(tx_desc); | |
12207e49 | 1175 | |
729739b7 AD |
1176 | /* update budget accounting */ |
1177 | budget--; | |
1178 | } while (likely(budget)); | |
1179 | ||
1180 | i += tx_ring->count; | |
9a799d71 | 1181 | tx_ring->next_to_clean = i; |
d3d00239 | 1182 | u64_stats_update_begin(&tx_ring->syncp); |
b953799e | 1183 | tx_ring->stats.bytes += total_bytes; |
bd198058 | 1184 | tx_ring->stats.packets += total_packets; |
d3d00239 | 1185 | u64_stats_update_end(&tx_ring->syncp); |
bd198058 AD |
1186 | q_vector->tx.total_bytes += total_bytes; |
1187 | q_vector->tx.total_packets += total_packets; | |
b953799e | 1188 | |
c84d324c JF |
1189 | if (check_for_tx_hang(tx_ring) && ixgbe_check_tx_hang(tx_ring)) { |
1190 | /* schedule immediate reset if we believe we hung */ | |
1191 | struct ixgbe_hw *hw = &adapter->hw; | |
c84d324c JF |
1192 | e_err(drv, "Detected Tx Unit Hang\n" |
1193 | " Tx Queue <%d>\n" | |
1194 | " TDH, TDT <%x>, <%x>\n" | |
1195 | " next_to_use <%x>\n" | |
1196 | " next_to_clean <%x>\n" | |
1197 | "tx_buffer_info[next_to_clean]\n" | |
1198 | " time_stamp <%lx>\n" | |
1199 | " jiffies <%lx>\n", | |
1200 | tx_ring->queue_index, | |
1201 | IXGBE_READ_REG(hw, IXGBE_TDH(tx_ring->reg_idx)), | |
1202 | IXGBE_READ_REG(hw, IXGBE_TDT(tx_ring->reg_idx)), | |
d3d00239 AD |
1203 | tx_ring->next_to_use, i, |
1204 | tx_ring->tx_buffer_info[i].time_stamp, jiffies); | |
c84d324c JF |
1205 | |
1206 | netif_stop_subqueue(tx_ring->netdev, tx_ring->queue_index); | |
1207 | ||
1208 | e_info(probe, | |
1209 | "tx hang %d detected on queue %d, resetting adapter\n", | |
1210 | adapter->tx_timeout_count + 1, tx_ring->queue_index); | |
1211 | ||
b953799e | 1212 | /* schedule immediate reset if we believe we hung */ |
c83c6cbd | 1213 | ixgbe_tx_timeout_reset(adapter); |
b953799e AD |
1214 | |
1215 | /* the adapter is about to reset, no point in enabling stuff */ | |
59224555 | 1216 | return true; |
b953799e | 1217 | } |
9a799d71 | 1218 | |
b2d96e0a AD |
1219 | netdev_tx_completed_queue(txring_txq(tx_ring), |
1220 | total_packets, total_bytes); | |
1221 | ||
e092be60 | 1222 | #define TX_WAKE_THRESHOLD (DESC_NEEDED * 2) |
30065e63 | 1223 | if (unlikely(total_packets && netif_carrier_ok(tx_ring->netdev) && |
7d4987de | 1224 | (ixgbe_desc_unused(tx_ring) >= TX_WAKE_THRESHOLD))) { |
e092be60 AV |
1225 | /* Make sure that anybody stopping the queue after this |
1226 | * sees the new next_to_clean. | |
1227 | */ | |
1228 | smp_mb(); | |
729739b7 AD |
1229 | if (__netif_subqueue_stopped(tx_ring->netdev, |
1230 | tx_ring->queue_index) | |
1231 | && !test_bit(__IXGBE_DOWN, &adapter->state)) { | |
1232 | netif_wake_subqueue(tx_ring->netdev, | |
1233 | tx_ring->queue_index); | |
5b7da515 | 1234 | ++tx_ring->tx_stats.restart_queue; |
30eba97a | 1235 | } |
e092be60 | 1236 | } |
9a799d71 | 1237 | |
59224555 | 1238 | return !!budget; |
9a799d71 AK |
1239 | } |
1240 | ||
5dd2d332 | 1241 | #ifdef CONFIG_IXGBE_DCA |
bdda1a61 AD |
1242 | static void ixgbe_update_tx_dca(struct ixgbe_adapter *adapter, |
1243 | struct ixgbe_ring *tx_ring, | |
33cf09c9 | 1244 | int cpu) |
bd0362dd | 1245 | { |
33cf09c9 | 1246 | struct ixgbe_hw *hw = &adapter->hw; |
bdda1a61 AD |
1247 | u32 txctrl = dca3_get_tag(tx_ring->dev, cpu); |
1248 | u16 reg_offset; | |
33cf09c9 | 1249 | |
33cf09c9 AD |
1250 | switch (hw->mac.type) { |
1251 | case ixgbe_mac_82598EB: | |
bdda1a61 | 1252 | reg_offset = IXGBE_DCA_TXCTRL(tx_ring->reg_idx); |
33cf09c9 AD |
1253 | break; |
1254 | case ixgbe_mac_82599EB: | |
b93a2226 | 1255 | case ixgbe_mac_X540: |
bdda1a61 AD |
1256 | reg_offset = IXGBE_DCA_TXCTRL_82599(tx_ring->reg_idx); |
1257 | txctrl <<= IXGBE_DCA_TXCTRL_CPUID_SHIFT_82599; | |
33cf09c9 AD |
1258 | break; |
1259 | default: | |
bdda1a61 AD |
1260 | /* for unknown hardware do not write register */ |
1261 | return; | |
bd0362dd | 1262 | } |
bdda1a61 AD |
1263 | |
1264 | /* | |
1265 | * We can enable relaxed ordering for reads, but not writes when | |
1266 | * DCA is enabled. This is due to a known issue in some chipsets | |
1267 | * which will cause the DCA tag to be cleared. | |
1268 | */ | |
1269 | txctrl |= IXGBE_DCA_TXCTRL_DESC_RRO_EN | | |
1270 | IXGBE_DCA_TXCTRL_DATA_RRO_EN | | |
1271 | IXGBE_DCA_TXCTRL_DESC_DCA_EN; | |
1272 | ||
1273 | IXGBE_WRITE_REG(hw, reg_offset, txctrl); | |
bd0362dd JC |
1274 | } |
1275 | ||
bdda1a61 AD |
1276 | static void ixgbe_update_rx_dca(struct ixgbe_adapter *adapter, |
1277 | struct ixgbe_ring *rx_ring, | |
33cf09c9 | 1278 | int cpu) |
bd0362dd | 1279 | { |
33cf09c9 | 1280 | struct ixgbe_hw *hw = &adapter->hw; |
bdda1a61 AD |
1281 | u32 rxctrl = dca3_get_tag(rx_ring->dev, cpu); |
1282 | u8 reg_idx = rx_ring->reg_idx; | |
1283 | ||
33cf09c9 AD |
1284 | |
1285 | switch (hw->mac.type) { | |
33cf09c9 | 1286 | case ixgbe_mac_82599EB: |
b93a2226 | 1287 | case ixgbe_mac_X540: |
bdda1a61 | 1288 | rxctrl <<= IXGBE_DCA_RXCTRL_CPUID_SHIFT_82599; |
33cf09c9 AD |
1289 | break; |
1290 | default: | |
1291 | break; | |
1292 | } | |
bdda1a61 AD |
1293 | |
1294 | /* | |
1295 | * We can enable relaxed ordering for reads, but not writes when | |
1296 | * DCA is enabled. This is due to a known issue in some chipsets | |
1297 | * which will cause the DCA tag to be cleared. | |
1298 | */ | |
1299 | rxctrl |= IXGBE_DCA_RXCTRL_DESC_RRO_EN | | |
bdda1a61 AD |
1300 | IXGBE_DCA_RXCTRL_DESC_DCA_EN; |
1301 | ||
1302 | IXGBE_WRITE_REG(hw, IXGBE_DCA_RXCTRL(reg_idx), rxctrl); | |
33cf09c9 AD |
1303 | } |
1304 | ||
1305 | static void ixgbe_update_dca(struct ixgbe_q_vector *q_vector) | |
1306 | { | |
1307 | struct ixgbe_adapter *adapter = q_vector->adapter; | |
efe3d3c8 | 1308 | struct ixgbe_ring *ring; |
bd0362dd | 1309 | int cpu = get_cpu(); |
bd0362dd | 1310 | |
33cf09c9 AD |
1311 | if (q_vector->cpu == cpu) |
1312 | goto out_no_update; | |
1313 | ||
a557928e | 1314 | ixgbe_for_each_ring(ring, q_vector->tx) |
efe3d3c8 | 1315 | ixgbe_update_tx_dca(adapter, ring, cpu); |
33cf09c9 | 1316 | |
a557928e | 1317 | ixgbe_for_each_ring(ring, q_vector->rx) |
efe3d3c8 | 1318 | ixgbe_update_rx_dca(adapter, ring, cpu); |
33cf09c9 AD |
1319 | |
1320 | q_vector->cpu = cpu; | |
1321 | out_no_update: | |
bd0362dd JC |
1322 | put_cpu(); |
1323 | } | |
1324 | ||
1325 | static void ixgbe_setup_dca(struct ixgbe_adapter *adapter) | |
1326 | { | |
1327 | int i; | |
1328 | ||
1329 | if (!(adapter->flags & IXGBE_FLAG_DCA_ENABLED)) | |
1330 | return; | |
1331 | ||
e35ec126 AD |
1332 | /* always use CB2 mode, difference is masked in the CB driver */ |
1333 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_DCA_CTRL, 2); | |
1334 | ||
49c7ffbe | 1335 | for (i = 0; i < adapter->num_q_vectors; i++) { |
33cf09c9 AD |
1336 | adapter->q_vector[i]->cpu = -1; |
1337 | ixgbe_update_dca(adapter->q_vector[i]); | |
bd0362dd JC |
1338 | } |
1339 | } | |
1340 | ||
1341 | static int __ixgbe_notify_dca(struct device *dev, void *data) | |
1342 | { | |
c60fbb00 | 1343 | struct ixgbe_adapter *adapter = dev_get_drvdata(dev); |
bd0362dd JC |
1344 | unsigned long event = *(unsigned long *)data; |
1345 | ||
2a72c31e | 1346 | if (!(adapter->flags & IXGBE_FLAG_DCA_CAPABLE)) |
33cf09c9 AD |
1347 | return 0; |
1348 | ||
bd0362dd JC |
1349 | switch (event) { |
1350 | case DCA_PROVIDER_ADD: | |
96b0e0f6 JB |
1351 | /* if we're already enabled, don't do it again */ |
1352 | if (adapter->flags & IXGBE_FLAG_DCA_ENABLED) | |
1353 | break; | |
652f093f | 1354 | if (dca_add_requester(dev) == 0) { |
96b0e0f6 | 1355 | adapter->flags |= IXGBE_FLAG_DCA_ENABLED; |
bd0362dd JC |
1356 | ixgbe_setup_dca(adapter); |
1357 | break; | |
1358 | } | |
1359 | /* Fall Through since DCA is disabled. */ | |
1360 | case DCA_PROVIDER_REMOVE: | |
1361 | if (adapter->flags & IXGBE_FLAG_DCA_ENABLED) { | |
1362 | dca_remove_requester(dev); | |
1363 | adapter->flags &= ~IXGBE_FLAG_DCA_ENABLED; | |
1364 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_DCA_CTRL, 1); | |
1365 | } | |
1366 | break; | |
1367 | } | |
1368 | ||
652f093f | 1369 | return 0; |
bd0362dd | 1370 | } |
67a74ee2 | 1371 | |
bdda1a61 | 1372 | #endif /* CONFIG_IXGBE_DCA */ |
7edda4b8 FD |
1373 | |
1374 | #define IXGBE_RSS_L4_TYPES_MASK \ | |
1375 | ((1ul << IXGBE_RXDADV_RSSTYPE_IPV4_TCP) | \ | |
1376 | (1ul << IXGBE_RXDADV_RSSTYPE_IPV4_UDP) | \ | |
1377 | (1ul << IXGBE_RXDADV_RSSTYPE_IPV6_TCP) | \ | |
1378 | (1ul << IXGBE_RXDADV_RSSTYPE_IPV6_UDP)) | |
1379 | ||
8a0da21b AD |
1380 | static inline void ixgbe_rx_hash(struct ixgbe_ring *ring, |
1381 | union ixgbe_adv_rx_desc *rx_desc, | |
67a74ee2 ET |
1382 | struct sk_buff *skb) |
1383 | { | |
7edda4b8 FD |
1384 | u16 rss_type; |
1385 | ||
1386 | if (!(ring->netdev->features & NETIF_F_RXHASH)) | |
1387 | return; | |
1388 | ||
1389 | rss_type = le16_to_cpu(rx_desc->wb.lower.lo_dword.hs_rss.pkt_info) & | |
1390 | IXGBE_RXDADV_RSSTYPE_MASK; | |
1391 | ||
1392 | if (!rss_type) | |
1393 | return; | |
1394 | ||
1395 | skb_set_hash(skb, le32_to_cpu(rx_desc->wb.lower.hi_dword.rss), | |
1396 | (IXGBE_RSS_L4_TYPES_MASK & (1ul << rss_type)) ? | |
1397 | PKT_HASH_TYPE_L4 : PKT_HASH_TYPE_L3); | |
67a74ee2 ET |
1398 | } |
1399 | ||
f800326d | 1400 | #ifdef IXGBE_FCOE |
ff886dfc AD |
1401 | /** |
1402 | * ixgbe_rx_is_fcoe - check the rx desc for incoming pkt type | |
57efd44c | 1403 | * @ring: structure containing ring specific data |
ff886dfc AD |
1404 | * @rx_desc: advanced rx descriptor |
1405 | * | |
1406 | * Returns : true if it is FCoE pkt | |
1407 | */ | |
57efd44c | 1408 | static inline bool ixgbe_rx_is_fcoe(struct ixgbe_ring *ring, |
ff886dfc AD |
1409 | union ixgbe_adv_rx_desc *rx_desc) |
1410 | { | |
1411 | __le16 pkt_info = rx_desc->wb.lower.lo_dword.hs_rss.pkt_info; | |
1412 | ||
57efd44c | 1413 | return test_bit(__IXGBE_RX_FCOE, &ring->state) && |
ff886dfc AD |
1414 | ((pkt_info & cpu_to_le16(IXGBE_RXDADV_PKTTYPE_ETQF_MASK)) == |
1415 | (cpu_to_le16(IXGBE_ETQF_FILTER_FCOE << | |
1416 | IXGBE_RXDADV_PKTTYPE_ETQF_SHIFT))); | |
1417 | } | |
1418 | ||
f800326d | 1419 | #endif /* IXGBE_FCOE */ |
e59bd25d AV |
1420 | /** |
1421 | * ixgbe_rx_checksum - indicate in skb if hw indicated a good cksum | |
8a0da21b AD |
1422 | * @ring: structure containing ring specific data |
1423 | * @rx_desc: current Rx descriptor being processed | |
e59bd25d AV |
1424 | * @skb: skb currently being received and modified |
1425 | **/ | |
8a0da21b | 1426 | static inline void ixgbe_rx_checksum(struct ixgbe_ring *ring, |
8bae1b2b | 1427 | union ixgbe_adv_rx_desc *rx_desc, |
f56e0cb1 | 1428 | struct sk_buff *skb) |
9a799d71 | 1429 | { |
3f207800 DS |
1430 | __le16 pkt_info = rx_desc->wb.lower.lo_dword.hs_rss.pkt_info; |
1431 | __le16 hdr_info = rx_desc->wb.lower.lo_dword.hs_rss.hdr_info; | |
1432 | bool encap_pkt = false; | |
1433 | ||
8a0da21b | 1434 | skb_checksum_none_assert(skb); |
9a799d71 | 1435 | |
712744be | 1436 | /* Rx csum disabled */ |
8a0da21b | 1437 | if (!(ring->netdev->features & NETIF_F_RXCSUM)) |
9a799d71 | 1438 | return; |
e59bd25d | 1439 | |
3f207800 DS |
1440 | if ((pkt_info & cpu_to_le16(IXGBE_RXDADV_PKTTYPE_VXLAN)) && |
1441 | (hdr_info & cpu_to_le16(IXGBE_RXDADV_PKTTYPE_TUNNEL >> 16))) { | |
1442 | encap_pkt = true; | |
1443 | skb->encapsulation = 1; | |
3f207800 DS |
1444 | } |
1445 | ||
e59bd25d | 1446 | /* if IP and error */ |
f56e0cb1 AD |
1447 | if (ixgbe_test_staterr(rx_desc, IXGBE_RXD_STAT_IPCS) && |
1448 | ixgbe_test_staterr(rx_desc, IXGBE_RXDADV_ERR_IPE)) { | |
8a0da21b | 1449 | ring->rx_stats.csum_err++; |
9a799d71 AK |
1450 | return; |
1451 | } | |
e59bd25d | 1452 | |
f56e0cb1 | 1453 | if (!ixgbe_test_staterr(rx_desc, IXGBE_RXD_STAT_L4CS)) |
e59bd25d AV |
1454 | return; |
1455 | ||
f56e0cb1 | 1456 | if (ixgbe_test_staterr(rx_desc, IXGBE_RXDADV_ERR_TCPE)) { |
8bae1b2b DS |
1457 | /* |
1458 | * 82599 errata, UDP frames with a 0 checksum can be marked as | |
1459 | * checksum errors. | |
1460 | */ | |
8a0da21b AD |
1461 | if ((pkt_info & cpu_to_le16(IXGBE_RXDADV_PKTTYPE_UDP)) && |
1462 | test_bit(__IXGBE_RX_CSUM_UDP_ZERO_ERR, &ring->state)) | |
8bae1b2b DS |
1463 | return; |
1464 | ||
8a0da21b | 1465 | ring->rx_stats.csum_err++; |
e59bd25d AV |
1466 | return; |
1467 | } | |
1468 | ||
9a799d71 | 1469 | /* It must be a TCP or UDP packet with a valid checksum */ |
e59bd25d | 1470 | skb->ip_summed = CHECKSUM_UNNECESSARY; |
3f207800 DS |
1471 | if (encap_pkt) { |
1472 | if (!ixgbe_test_staterr(rx_desc, IXGBE_RXD_STAT_OUTERIPCS)) | |
1473 | return; | |
1474 | ||
1475 | if (ixgbe_test_staterr(rx_desc, IXGBE_RXDADV_ERR_OUTERIPER)) { | |
1476 | ring->rx_stats.csum_err++; | |
1477 | return; | |
1478 | } | |
1479 | /* If we checked the outer header let the stack know */ | |
1480 | skb->csum_level = 1; | |
1481 | } | |
9a799d71 AK |
1482 | } |
1483 | ||
f990b79b AD |
1484 | static bool ixgbe_alloc_mapped_page(struct ixgbe_ring *rx_ring, |
1485 | struct ixgbe_rx_buffer *bi) | |
1486 | { | |
1487 | struct page *page = bi->page; | |
18cb652a | 1488 | dma_addr_t dma; |
f990b79b | 1489 | |
f800326d | 1490 | /* since we are recycling buffers we should seldom need to alloc */ |
18cb652a | 1491 | if (likely(page)) |
f990b79b AD |
1492 | return true; |
1493 | ||
f800326d | 1494 | /* alloc new page for storage */ |
18cb652a AD |
1495 | page = dev_alloc_pages(ixgbe_rx_pg_order(rx_ring)); |
1496 | if (unlikely(!page)) { | |
1497 | rx_ring->rx_stats.alloc_rx_page_failed++; | |
1498 | return false; | |
f990b79b AD |
1499 | } |
1500 | ||
f800326d AD |
1501 | /* map page for use */ |
1502 | dma = dma_map_page(rx_ring->dev, page, 0, | |
1503 | ixgbe_rx_pg_size(rx_ring), DMA_FROM_DEVICE); | |
1504 | ||
1505 | /* | |
1506 | * if mapping failed free memory back to system since | |
1507 | * there isn't much point in holding memory we can't use | |
1508 | */ | |
1509 | if (dma_mapping_error(rx_ring->dev, dma)) { | |
dd411ec4 | 1510 | __free_pages(page, ixgbe_rx_pg_order(rx_ring)); |
f990b79b | 1511 | |
f990b79b AD |
1512 | rx_ring->rx_stats.alloc_rx_page_failed++; |
1513 | return false; | |
1514 | } | |
1515 | ||
f800326d | 1516 | bi->dma = dma; |
18cb652a | 1517 | bi->page = page; |
afaa9459 | 1518 | bi->page_offset = 0; |
f800326d | 1519 | |
f990b79b AD |
1520 | return true; |
1521 | } | |
1522 | ||
9a799d71 | 1523 | /** |
f990b79b | 1524 | * ixgbe_alloc_rx_buffers - Replace used receive buffers |
fc77dc3c AD |
1525 | * @rx_ring: ring to place buffers on |
1526 | * @cleaned_count: number of buffers to replace | |
9a799d71 | 1527 | **/ |
fc77dc3c | 1528 | void ixgbe_alloc_rx_buffers(struct ixgbe_ring *rx_ring, u16 cleaned_count) |
9a799d71 | 1529 | { |
9a799d71 | 1530 | union ixgbe_adv_rx_desc *rx_desc; |
3a581073 | 1531 | struct ixgbe_rx_buffer *bi; |
d5f398ed | 1532 | u16 i = rx_ring->next_to_use; |
9a799d71 | 1533 | |
f800326d AD |
1534 | /* nothing to do */ |
1535 | if (!cleaned_count) | |
fc77dc3c AD |
1536 | return; |
1537 | ||
e4f74028 | 1538 | rx_desc = IXGBE_RX_DESC(rx_ring, i); |
f990b79b AD |
1539 | bi = &rx_ring->rx_buffer_info[i]; |
1540 | i -= rx_ring->count; | |
9a799d71 | 1541 | |
f800326d AD |
1542 | do { |
1543 | if (!ixgbe_alloc_mapped_page(rx_ring, bi)) | |
f990b79b | 1544 | break; |
d5f398ed | 1545 | |
f800326d AD |
1546 | /* |
1547 | * Refresh the desc even if buffer_addrs didn't change | |
1548 | * because each write-back erases this info. | |
1549 | */ | |
1550 | rx_desc->read.pkt_addr = cpu_to_le64(bi->dma + bi->page_offset); | |
9a799d71 | 1551 | |
f990b79b AD |
1552 | rx_desc++; |
1553 | bi++; | |
9a799d71 | 1554 | i++; |
f990b79b | 1555 | if (unlikely(!i)) { |
e4f74028 | 1556 | rx_desc = IXGBE_RX_DESC(rx_ring, 0); |
f990b79b AD |
1557 | bi = rx_ring->rx_buffer_info; |
1558 | i -= rx_ring->count; | |
1559 | } | |
1560 | ||
18cb652a AD |
1561 | /* clear the status bits for the next_to_use descriptor */ |
1562 | rx_desc->wb.upper.status_error = 0; | |
f800326d AD |
1563 | |
1564 | cleaned_count--; | |
1565 | } while (cleaned_count); | |
7c6e0a43 | 1566 | |
f990b79b AD |
1567 | i += rx_ring->count; |
1568 | ||
ad435ec6 AD |
1569 | if (rx_ring->next_to_use != i) { |
1570 | rx_ring->next_to_use = i; | |
1571 | ||
1572 | /* update next to alloc since we have filled the ring */ | |
1573 | rx_ring->next_to_alloc = i; | |
1574 | ||
1575 | /* Force memory writes to complete before letting h/w | |
1576 | * know there are new descriptors to fetch. (Only | |
1577 | * applicable for weak-ordered memory model archs, | |
1578 | * such as IA-64). | |
1579 | */ | |
1580 | wmb(); | |
1581 | writel(i, rx_ring->tail); | |
1582 | } | |
9a799d71 AK |
1583 | } |
1584 | ||
1d2024f6 AD |
1585 | static void ixgbe_set_rsc_gso_size(struct ixgbe_ring *ring, |
1586 | struct sk_buff *skb) | |
1587 | { | |
f800326d | 1588 | u16 hdr_len = skb_headlen(skb); |
1d2024f6 AD |
1589 | |
1590 | /* set gso_size to avoid messing up TCP MSS */ | |
1591 | skb_shinfo(skb)->gso_size = DIV_ROUND_UP((skb->len - hdr_len), | |
1592 | IXGBE_CB(skb)->append_cnt); | |
96be80ab | 1593 | skb_shinfo(skb)->gso_type = SKB_GSO_TCPV4; |
1d2024f6 AD |
1594 | } |
1595 | ||
1596 | static void ixgbe_update_rsc_stats(struct ixgbe_ring *rx_ring, | |
1597 | struct sk_buff *skb) | |
1598 | { | |
1599 | /* if append_cnt is 0 then frame is not RSC */ | |
1600 | if (!IXGBE_CB(skb)->append_cnt) | |
1601 | return; | |
1602 | ||
1603 | rx_ring->rx_stats.rsc_count += IXGBE_CB(skb)->append_cnt; | |
1604 | rx_ring->rx_stats.rsc_flush++; | |
1605 | ||
1606 | ixgbe_set_rsc_gso_size(rx_ring, skb); | |
1607 | ||
1608 | /* gso_size is computed using append_cnt so always clear it last */ | |
1609 | IXGBE_CB(skb)->append_cnt = 0; | |
1610 | } | |
1611 | ||
8a0da21b AD |
1612 | /** |
1613 | * ixgbe_process_skb_fields - Populate skb header fields from Rx descriptor | |
1614 | * @rx_ring: rx descriptor ring packet is being transacted on | |
1615 | * @rx_desc: pointer to the EOP Rx descriptor | |
1616 | * @skb: pointer to current skb being populated | |
f8212f97 | 1617 | * |
8a0da21b AD |
1618 | * This function checks the ring, descriptor, and packet information in |
1619 | * order to populate the hash, checksum, VLAN, timestamp, protocol, and | |
1620 | * other fields within the skb. | |
f8212f97 | 1621 | **/ |
8a0da21b AD |
1622 | static void ixgbe_process_skb_fields(struct ixgbe_ring *rx_ring, |
1623 | union ixgbe_adv_rx_desc *rx_desc, | |
1624 | struct sk_buff *skb) | |
f8212f97 | 1625 | { |
43e95f11 JF |
1626 | struct net_device *dev = rx_ring->netdev; |
1627 | ||
8a0da21b AD |
1628 | ixgbe_update_rsc_stats(rx_ring, skb); |
1629 | ||
1630 | ixgbe_rx_hash(rx_ring, rx_desc, skb); | |
f8212f97 | 1631 | |
8a0da21b AD |
1632 | ixgbe_rx_checksum(rx_ring, rx_desc, skb); |
1633 | ||
eda183c2 JK |
1634 | if (unlikely(ixgbe_test_staterr(rx_desc, IXGBE_RXDADV_STAT_TS))) |
1635 | ixgbe_ptp_rx_hwtstamp(rx_ring->q_vector->adapter, skb); | |
3a6a4eda | 1636 | |
f646968f | 1637 | if ((dev->features & NETIF_F_HW_VLAN_CTAG_RX) && |
43e95f11 | 1638 | ixgbe_test_staterr(rx_desc, IXGBE_RXD_STAT_VP)) { |
8a0da21b | 1639 | u16 vid = le16_to_cpu(rx_desc->wb.upper.vlan); |
86a9bad3 | 1640 | __vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), vid); |
f8212f97 AD |
1641 | } |
1642 | ||
8a0da21b | 1643 | skb_record_rx_queue(skb, rx_ring->queue_index); |
aa80175a | 1644 | |
43e95f11 | 1645 | skb->protocol = eth_type_trans(skb, dev); |
f8212f97 AD |
1646 | } |
1647 | ||
8a0da21b AD |
1648 | static void ixgbe_rx_skb(struct ixgbe_q_vector *q_vector, |
1649 | struct sk_buff *skb) | |
aa80175a | 1650 | { |
b4640030 | 1651 | if (ixgbe_qv_busy_polling(q_vector)) |
5a85e737 | 1652 | netif_receive_skb(skb); |
8a0da21b | 1653 | else |
856f606e | 1654 | napi_gro_receive(&q_vector->napi, skb); |
aa80175a | 1655 | } |
43634e82 | 1656 | |
f800326d AD |
1657 | /** |
1658 | * ixgbe_is_non_eop - process handling of non-EOP buffers | |
1659 | * @rx_ring: Rx ring being processed | |
1660 | * @rx_desc: Rx descriptor for current buffer | |
1661 | * @skb: Current socket buffer containing buffer in progress | |
1662 | * | |
1663 | * This function updates next to clean. If the buffer is an EOP buffer | |
1664 | * this function exits returning false, otherwise it will place the | |
1665 | * sk_buff in the next buffer to be chained and return true indicating | |
1666 | * that this is in fact a non-EOP buffer. | |
1667 | **/ | |
1668 | static bool ixgbe_is_non_eop(struct ixgbe_ring *rx_ring, | |
1669 | union ixgbe_adv_rx_desc *rx_desc, | |
1670 | struct sk_buff *skb) | |
1671 | { | |
1672 | u32 ntc = rx_ring->next_to_clean + 1; | |
1673 | ||
1674 | /* fetch, update, and store next to clean */ | |
1675 | ntc = (ntc < rx_ring->count) ? ntc : 0; | |
1676 | rx_ring->next_to_clean = ntc; | |
1677 | ||
1678 | prefetch(IXGBE_RX_DESC(rx_ring, ntc)); | |
1679 | ||
5a02cbd1 AD |
1680 | /* update RSC append count if present */ |
1681 | if (ring_is_rsc_enabled(rx_ring)) { | |
1682 | __le32 rsc_enabled = rx_desc->wb.lower.lo_dword.data & | |
1683 | cpu_to_le32(IXGBE_RXDADV_RSCCNT_MASK); | |
1684 | ||
1685 | if (unlikely(rsc_enabled)) { | |
1686 | u32 rsc_cnt = le32_to_cpu(rsc_enabled); | |
1687 | ||
1688 | rsc_cnt >>= IXGBE_RXDADV_RSCCNT_SHIFT; | |
1689 | IXGBE_CB(skb)->append_cnt += rsc_cnt - 1; | |
f800326d | 1690 | |
5a02cbd1 AD |
1691 | /* update ntc based on RSC value */ |
1692 | ntc = le32_to_cpu(rx_desc->wb.upper.status_error); | |
1693 | ntc &= IXGBE_RXDADV_NEXTP_MASK; | |
1694 | ntc >>= IXGBE_RXDADV_NEXTP_SHIFT; | |
1695 | } | |
f800326d AD |
1696 | } |
1697 | ||
5a02cbd1 AD |
1698 | /* if we are the last buffer then there is nothing else to do */ |
1699 | if (likely(ixgbe_test_staterr(rx_desc, IXGBE_RXD_STAT_EOP))) | |
1700 | return false; | |
1701 | ||
f800326d AD |
1702 | /* place skb in next buffer to be received */ |
1703 | rx_ring->rx_buffer_info[ntc].skb = skb; | |
1704 | rx_ring->rx_stats.non_eop_descs++; | |
1705 | ||
1706 | return true; | |
1707 | } | |
1708 | ||
19861ce2 AD |
1709 | /** |
1710 | * ixgbe_pull_tail - ixgbe specific version of skb_pull_tail | |
1711 | * @rx_ring: rx descriptor ring packet is being transacted on | |
1712 | * @skb: pointer to current skb being adjusted | |
1713 | * | |
1714 | * This function is an ixgbe specific version of __pskb_pull_tail. The | |
1715 | * main difference between this version and the original function is that | |
1716 | * this function can make several assumptions about the state of things | |
1717 | * that allow for significant optimizations versus the standard function. | |
1718 | * As a result we can do things like drop a frag and maintain an accurate | |
1719 | * truesize for the skb. | |
1720 | */ | |
1721 | static void ixgbe_pull_tail(struct ixgbe_ring *rx_ring, | |
1722 | struct sk_buff *skb) | |
1723 | { | |
1724 | struct skb_frag_struct *frag = &skb_shinfo(skb)->frags[0]; | |
1725 | unsigned char *va; | |
1726 | unsigned int pull_len; | |
1727 | ||
1728 | /* | |
1729 | * it is valid to use page_address instead of kmap since we are | |
1730 | * working with pages allocated out of the lomem pool per | |
1731 | * alloc_page(GFP_ATOMIC) | |
1732 | */ | |
1733 | va = skb_frag_address(frag); | |
1734 | ||
1735 | /* | |
1736 | * we need the header to contain the greater of either ETH_HLEN or | |
1737 | * 60 bytes if the skb->len is less than 60 for skb_pad. | |
1738 | */ | |
8496e338 | 1739 | pull_len = eth_get_headlen(va, IXGBE_RX_HDR_SIZE); |
19861ce2 AD |
1740 | |
1741 | /* align pull length to size of long to optimize memcpy performance */ | |
1742 | skb_copy_to_linear_data(skb, va, ALIGN(pull_len, sizeof(long))); | |
1743 | ||
1744 | /* update all of the pointers */ | |
1745 | skb_frag_size_sub(frag, pull_len); | |
1746 | frag->page_offset += pull_len; | |
1747 | skb->data_len -= pull_len; | |
1748 | skb->tail += pull_len; | |
19861ce2 AD |
1749 | } |
1750 | ||
42073d91 AD |
1751 | /** |
1752 | * ixgbe_dma_sync_frag - perform DMA sync for first frag of SKB | |
1753 | * @rx_ring: rx descriptor ring packet is being transacted on | |
1754 | * @skb: pointer to current skb being updated | |
1755 | * | |
1756 | * This function provides a basic DMA sync up for the first fragment of an | |
1757 | * skb. The reason for doing this is that the first fragment cannot be | |
1758 | * unmapped until we have reached the end of packet descriptor for a buffer | |
1759 | * chain. | |
1760 | */ | |
1761 | static void ixgbe_dma_sync_frag(struct ixgbe_ring *rx_ring, | |
1762 | struct sk_buff *skb) | |
1763 | { | |
1764 | /* if the page was released unmap it, else just sync our portion */ | |
1765 | if (unlikely(IXGBE_CB(skb)->page_released)) { | |
1766 | dma_unmap_page(rx_ring->dev, IXGBE_CB(skb)->dma, | |
1767 | ixgbe_rx_pg_size(rx_ring), DMA_FROM_DEVICE); | |
1768 | IXGBE_CB(skb)->page_released = false; | |
1769 | } else { | |
1770 | struct skb_frag_struct *frag = &skb_shinfo(skb)->frags[0]; | |
1771 | ||
1772 | dma_sync_single_range_for_cpu(rx_ring->dev, | |
1773 | IXGBE_CB(skb)->dma, | |
1774 | frag->page_offset, | |
1775 | ixgbe_rx_bufsz(rx_ring), | |
1776 | DMA_FROM_DEVICE); | |
1777 | } | |
1778 | IXGBE_CB(skb)->dma = 0; | |
1779 | } | |
1780 | ||
f800326d AD |
1781 | /** |
1782 | * ixgbe_cleanup_headers - Correct corrupted or empty headers | |
1783 | * @rx_ring: rx descriptor ring packet is being transacted on | |
1784 | * @rx_desc: pointer to the EOP Rx descriptor | |
1785 | * @skb: pointer to current skb being fixed | |
1786 | * | |
1787 | * Check for corrupted packet headers caused by senders on the local L2 | |
1788 | * embedded NIC switch not setting up their Tx Descriptors right. These | |
1789 | * should be very rare. | |
1790 | * | |
1791 | * Also address the case where we are pulling data in on pages only | |
1792 | * and as such no data is present in the skb header. | |
1793 | * | |
1794 | * In addition if skb is not at least 60 bytes we need to pad it so that | |
1795 | * it is large enough to qualify as a valid Ethernet frame. | |
1796 | * | |
1797 | * Returns true if an error was encountered and skb was freed. | |
1798 | **/ | |
1799 | static bool ixgbe_cleanup_headers(struct ixgbe_ring *rx_ring, | |
1800 | union ixgbe_adv_rx_desc *rx_desc, | |
1801 | struct sk_buff *skb) | |
1802 | { | |
f800326d | 1803 | struct net_device *netdev = rx_ring->netdev; |
f800326d AD |
1804 | |
1805 | /* verify that the packet does not have any known errors */ | |
1806 | if (unlikely(ixgbe_test_staterr(rx_desc, | |
1807 | IXGBE_RXDADV_ERR_FRAME_ERR_MASK) && | |
1808 | !(netdev->features & NETIF_F_RXALL))) { | |
1809 | dev_kfree_skb_any(skb); | |
1810 | return true; | |
1811 | } | |
1812 | ||
19861ce2 | 1813 | /* place header in linear portion of buffer */ |
cf3fe7ac AD |
1814 | if (skb_is_nonlinear(skb)) |
1815 | ixgbe_pull_tail(rx_ring, skb); | |
f800326d | 1816 | |
57efd44c AD |
1817 | #ifdef IXGBE_FCOE |
1818 | /* do not attempt to pad FCoE Frames as this will disrupt DDP */ | |
1819 | if (ixgbe_rx_is_fcoe(rx_ring, rx_desc)) | |
1820 | return false; | |
1821 | ||
1822 | #endif | |
a94d9e22 AD |
1823 | /* if eth_skb_pad returns an error the skb was freed */ |
1824 | if (eth_skb_pad(skb)) | |
1825 | return true; | |
f800326d AD |
1826 | |
1827 | return false; | |
1828 | } | |
1829 | ||
f800326d AD |
1830 | /** |
1831 | * ixgbe_reuse_rx_page - page flip buffer and store it back on the ring | |
1832 | * @rx_ring: rx descriptor ring to store buffers on | |
1833 | * @old_buff: donor buffer to have page reused | |
1834 | * | |
0549ae20 | 1835 | * Synchronizes page for reuse by the adapter |
f800326d AD |
1836 | **/ |
1837 | static void ixgbe_reuse_rx_page(struct ixgbe_ring *rx_ring, | |
1838 | struct ixgbe_rx_buffer *old_buff) | |
1839 | { | |
1840 | struct ixgbe_rx_buffer *new_buff; | |
1841 | u16 nta = rx_ring->next_to_alloc; | |
f800326d AD |
1842 | |
1843 | new_buff = &rx_ring->rx_buffer_info[nta]; | |
1844 | ||
1845 | /* update, and store next to alloc */ | |
1846 | nta++; | |
1847 | rx_ring->next_to_alloc = (nta < rx_ring->count) ? nta : 0; | |
1848 | ||
1849 | /* transfer page from old buffer to new buffer */ | |
18cb652a | 1850 | *new_buff = *old_buff; |
f800326d AD |
1851 | |
1852 | /* sync the buffer for use by the device */ | |
1853 | dma_sync_single_range_for_device(rx_ring->dev, new_buff->dma, | |
0549ae20 AD |
1854 | new_buff->page_offset, |
1855 | ixgbe_rx_bufsz(rx_ring), | |
f800326d | 1856 | DMA_FROM_DEVICE); |
f800326d AD |
1857 | } |
1858 | ||
18cb652a AD |
1859 | static inline bool ixgbe_page_is_reserved(struct page *page) |
1860 | { | |
2f064f34 | 1861 | return (page_to_nid(page) != numa_mem_id()) || page_is_pfmemalloc(page); |
18cb652a AD |
1862 | } |
1863 | ||
f800326d AD |
1864 | /** |
1865 | * ixgbe_add_rx_frag - Add contents of Rx buffer to sk_buff | |
1866 | * @rx_ring: rx descriptor ring to transact packets on | |
1867 | * @rx_buffer: buffer containing page to add | |
1868 | * @rx_desc: descriptor containing length of buffer written by hardware | |
1869 | * @skb: sk_buff to place the data into | |
1870 | * | |
0549ae20 AD |
1871 | * This function will add the data contained in rx_buffer->page to the skb. |
1872 | * This is done either through a direct copy if the data in the buffer is | |
1873 | * less than the skb header size, otherwise it will just attach the page as | |
1874 | * a frag to the skb. | |
1875 | * | |
1876 | * The function will then update the page offset if necessary and return | |
1877 | * true if the buffer can be reused by the adapter. | |
f800326d | 1878 | **/ |
0549ae20 | 1879 | static bool ixgbe_add_rx_frag(struct ixgbe_ring *rx_ring, |
f800326d | 1880 | struct ixgbe_rx_buffer *rx_buffer, |
0549ae20 AD |
1881 | union ixgbe_adv_rx_desc *rx_desc, |
1882 | struct sk_buff *skb) | |
f800326d | 1883 | { |
0549ae20 AD |
1884 | struct page *page = rx_buffer->page; |
1885 | unsigned int size = le16_to_cpu(rx_desc->wb.upper.length); | |
09816fbe | 1886 | #if (PAGE_SIZE < 8192) |
0549ae20 | 1887 | unsigned int truesize = ixgbe_rx_bufsz(rx_ring); |
09816fbe AD |
1888 | #else |
1889 | unsigned int truesize = ALIGN(size, L1_CACHE_BYTES); | |
1890 | unsigned int last_offset = ixgbe_rx_pg_size(rx_ring) - | |
1891 | ixgbe_rx_bufsz(rx_ring); | |
1892 | #endif | |
0549ae20 | 1893 | |
cf3fe7ac AD |
1894 | if ((size <= IXGBE_RX_HDR_SIZE) && !skb_is_nonlinear(skb)) { |
1895 | unsigned char *va = page_address(page) + rx_buffer->page_offset; | |
1896 | ||
1897 | memcpy(__skb_put(skb, size), va, ALIGN(size, sizeof(long))); | |
1898 | ||
18cb652a AD |
1899 | /* page is not reserved, we can reuse buffer as-is */ |
1900 | if (likely(!ixgbe_page_is_reserved(page))) | |
cf3fe7ac AD |
1901 | return true; |
1902 | ||
1903 | /* this page cannot be reused so discard it */ | |
18cb652a | 1904 | __free_pages(page, ixgbe_rx_pg_order(rx_ring)); |
cf3fe7ac AD |
1905 | return false; |
1906 | } | |
1907 | ||
0549ae20 AD |
1908 | skb_add_rx_frag(skb, skb_shinfo(skb)->nr_frags, page, |
1909 | rx_buffer->page_offset, size, truesize); | |
1910 | ||
09816fbe | 1911 | /* avoid re-using remote pages */ |
18cb652a | 1912 | if (unlikely(ixgbe_page_is_reserved(page))) |
09816fbe AD |
1913 | return false; |
1914 | ||
1915 | #if (PAGE_SIZE < 8192) | |
1916 | /* if we are only owner of page we can reuse it */ | |
1917 | if (unlikely(page_count(page) != 1)) | |
0549ae20 AD |
1918 | return false; |
1919 | ||
1920 | /* flip page offset to other buffer */ | |
1921 | rx_buffer->page_offset ^= truesize; | |
09816fbe AD |
1922 | #else |
1923 | /* move offset up to the next cache line */ | |
1924 | rx_buffer->page_offset += truesize; | |
1925 | ||
1926 | if (rx_buffer->page_offset > last_offset) | |
1927 | return false; | |
09816fbe | 1928 | #endif |
0549ae20 | 1929 | |
18cb652a AD |
1930 | /* Even if we own the page, we are not allowed to use atomic_set() |
1931 | * This would break get_page_unless_zero() users. | |
1932 | */ | |
1933 | atomic_inc(&page->_count); | |
1934 | ||
0549ae20 | 1935 | return true; |
f800326d AD |
1936 | } |
1937 | ||
18806c9e AD |
1938 | static struct sk_buff *ixgbe_fetch_rx_buffer(struct ixgbe_ring *rx_ring, |
1939 | union ixgbe_adv_rx_desc *rx_desc) | |
1940 | { | |
1941 | struct ixgbe_rx_buffer *rx_buffer; | |
1942 | struct sk_buff *skb; | |
1943 | struct page *page; | |
1944 | ||
1945 | rx_buffer = &rx_ring->rx_buffer_info[rx_ring->next_to_clean]; | |
1946 | page = rx_buffer->page; | |
1947 | prefetchw(page); | |
1948 | ||
1949 | skb = rx_buffer->skb; | |
1950 | ||
1951 | if (likely(!skb)) { | |
1952 | void *page_addr = page_address(page) + | |
1953 | rx_buffer->page_offset; | |
1954 | ||
1955 | /* prefetch first cache line of first page */ | |
1956 | prefetch(page_addr); | |
1957 | #if L1_CACHE_BYTES < 128 | |
1958 | prefetch(page_addr + L1_CACHE_BYTES); | |
1959 | #endif | |
1960 | ||
1961 | /* allocate a skb to store the frags */ | |
67fd893e AD |
1962 | skb = napi_alloc_skb(&rx_ring->q_vector->napi, |
1963 | IXGBE_RX_HDR_SIZE); | |
18806c9e AD |
1964 | if (unlikely(!skb)) { |
1965 | rx_ring->rx_stats.alloc_rx_buff_failed++; | |
1966 | return NULL; | |
1967 | } | |
1968 | ||
1969 | /* | |
1970 | * we will be copying header into skb->data in | |
1971 | * pskb_may_pull so it is in our interest to prefetch | |
1972 | * it now to avoid a possible cache miss | |
1973 | */ | |
1974 | prefetchw(skb->data); | |
1975 | ||
1976 | /* | |
1977 | * Delay unmapping of the first packet. It carries the | |
1978 | * header information, HW may still access the header | |
1979 | * after the writeback. Only unmap it when EOP is | |
1980 | * reached | |
1981 | */ | |
1982 | if (likely(ixgbe_test_staterr(rx_desc, IXGBE_RXD_STAT_EOP))) | |
1983 | goto dma_sync; | |
1984 | ||
1985 | IXGBE_CB(skb)->dma = rx_buffer->dma; | |
1986 | } else { | |
1987 | if (ixgbe_test_staterr(rx_desc, IXGBE_RXD_STAT_EOP)) | |
1988 | ixgbe_dma_sync_frag(rx_ring, skb); | |
1989 | ||
1990 | dma_sync: | |
1991 | /* we are reusing so sync this buffer for CPU use */ | |
1992 | dma_sync_single_range_for_cpu(rx_ring->dev, | |
1993 | rx_buffer->dma, | |
1994 | rx_buffer->page_offset, | |
1995 | ixgbe_rx_bufsz(rx_ring), | |
1996 | DMA_FROM_DEVICE); | |
18cb652a AD |
1997 | |
1998 | rx_buffer->skb = NULL; | |
18806c9e AD |
1999 | } |
2000 | ||
2001 | /* pull page into skb */ | |
2002 | if (ixgbe_add_rx_frag(rx_ring, rx_buffer, rx_desc, skb)) { | |
2003 | /* hand second half of page back to the ring */ | |
2004 | ixgbe_reuse_rx_page(rx_ring, rx_buffer); | |
2005 | } else if (IXGBE_CB(skb)->dma == rx_buffer->dma) { | |
2006 | /* the page has been released from the ring */ | |
2007 | IXGBE_CB(skb)->page_released = true; | |
2008 | } else { | |
2009 | /* we are not reusing the buffer so unmap it */ | |
2010 | dma_unmap_page(rx_ring->dev, rx_buffer->dma, | |
2011 | ixgbe_rx_pg_size(rx_ring), | |
2012 | DMA_FROM_DEVICE); | |
2013 | } | |
2014 | ||
2015 | /* clear contents of buffer_info */ | |
18806c9e AD |
2016 | rx_buffer->page = NULL; |
2017 | ||
2018 | return skb; | |
f800326d AD |
2019 | } |
2020 | ||
2021 | /** | |
2022 | * ixgbe_clean_rx_irq - Clean completed descriptors from Rx ring - bounce buf | |
2023 | * @q_vector: structure containing interrupt and ring information | |
2024 | * @rx_ring: rx descriptor ring to transact packets on | |
2025 | * @budget: Total limit on number of packets to process | |
2026 | * | |
2027 | * This function provides a "bounce buffer" approach to Rx interrupt | |
2028 | * processing. The advantage to this is that on systems that have | |
2029 | * expensive overhead for IOMMU access this provides a means of avoiding | |
2030 | * it by maintaining the mapping of the page to the syste. | |
2031 | * | |
5a85e737 | 2032 | * Returns amount of work completed |
f800326d | 2033 | **/ |
5a85e737 | 2034 | static int ixgbe_clean_rx_irq(struct ixgbe_q_vector *q_vector, |
e8e9f696 | 2035 | struct ixgbe_ring *rx_ring, |
f4de00ed | 2036 | const int budget) |
9a799d71 | 2037 | { |
d2f4fbe2 | 2038 | unsigned int total_rx_bytes = 0, total_rx_packets = 0; |
3f2d1c0f | 2039 | #ifdef IXGBE_FCOE |
f800326d | 2040 | struct ixgbe_adapter *adapter = q_vector->adapter; |
4ffdf91a MR |
2041 | int ddp_bytes; |
2042 | unsigned int mss = 0; | |
3d8fd385 | 2043 | #endif /* IXGBE_FCOE */ |
f800326d | 2044 | u16 cleaned_count = ixgbe_desc_unused(rx_ring); |
9a799d71 | 2045 | |
fdabfc8a | 2046 | while (likely(total_rx_packets < budget)) { |
f800326d AD |
2047 | union ixgbe_adv_rx_desc *rx_desc; |
2048 | struct sk_buff *skb; | |
f800326d AD |
2049 | |
2050 | /* return some buffers to hardware, one at a time is too slow */ | |
2051 | if (cleaned_count >= IXGBE_RX_BUFFER_WRITE) { | |
2052 | ixgbe_alloc_rx_buffers(rx_ring, cleaned_count); | |
2053 | cleaned_count = 0; | |
2054 | } | |
2055 | ||
18806c9e | 2056 | rx_desc = IXGBE_RX_DESC(rx_ring, rx_ring->next_to_clean); |
f800326d | 2057 | |
124b74c1 | 2058 | if (!rx_desc->wb.upper.status_error) |
f800326d | 2059 | break; |
9a799d71 | 2060 | |
124b74c1 | 2061 | /* This memory barrier is needed to keep us from reading |
f800326d | 2062 | * any other fields out of the rx_desc until we know the |
124b74c1 | 2063 | * descriptor has been written back |
f800326d | 2064 | */ |
124b74c1 | 2065 | dma_rmb(); |
9a799d71 | 2066 | |
18806c9e AD |
2067 | /* retrieve a buffer from the ring */ |
2068 | skb = ixgbe_fetch_rx_buffer(rx_ring, rx_desc); | |
f800326d | 2069 | |
18806c9e AD |
2070 | /* exit if we failed to retrieve a buffer */ |
2071 | if (!skb) | |
2072 | break; | |
9a799d71 | 2073 | |
9a799d71 | 2074 | cleaned_count++; |
f8212f97 | 2075 | |
f800326d AD |
2076 | /* place incomplete frames back on ring for completion */ |
2077 | if (ixgbe_is_non_eop(rx_ring, rx_desc, skb)) | |
2078 | continue; | |
c267fc16 | 2079 | |
f800326d AD |
2080 | /* verify the packet layout is correct */ |
2081 | if (ixgbe_cleanup_headers(rx_ring, rx_desc, skb)) | |
2082 | continue; | |
9a799d71 | 2083 | |
d2f4fbe2 AV |
2084 | /* probably a little skewed due to removing CRC */ |
2085 | total_rx_bytes += skb->len; | |
d2f4fbe2 | 2086 | |
8a0da21b AD |
2087 | /* populate checksum, timestamp, VLAN, and protocol */ |
2088 | ixgbe_process_skb_fields(rx_ring, rx_desc, skb); | |
2089 | ||
332d4a7d YZ |
2090 | #ifdef IXGBE_FCOE |
2091 | /* if ddp, not passing to ULD unless for FCP_RSP or error */ | |
57efd44c | 2092 | if (ixgbe_rx_is_fcoe(rx_ring, rx_desc)) { |
f56e0cb1 | 2093 | ddp_bytes = ixgbe_fcoe_ddp(adapter, rx_desc, skb); |
4ffdf91a MR |
2094 | /* include DDPed FCoE data */ |
2095 | if (ddp_bytes > 0) { | |
2096 | if (!mss) { | |
2097 | mss = rx_ring->netdev->mtu - | |
2098 | sizeof(struct fcoe_hdr) - | |
2099 | sizeof(struct fc_frame_header) - | |
2100 | sizeof(struct fcoe_crc_eof); | |
2101 | if (mss > 512) | |
2102 | mss &= ~511; | |
2103 | } | |
2104 | total_rx_bytes += ddp_bytes; | |
2105 | total_rx_packets += DIV_ROUND_UP(ddp_bytes, | |
2106 | mss); | |
2107 | } | |
63d635b2 AD |
2108 | if (!ddp_bytes) { |
2109 | dev_kfree_skb_any(skb); | |
f800326d | 2110 | continue; |
63d635b2 | 2111 | } |
3d8fd385 | 2112 | } |
f800326d | 2113 | |
332d4a7d | 2114 | #endif /* IXGBE_FCOE */ |
8b80cda5 | 2115 | skb_mark_napi_id(skb, &q_vector->napi); |
8a0da21b | 2116 | ixgbe_rx_skb(q_vector, skb); |
9a799d71 | 2117 | |
f800326d | 2118 | /* update budget accounting */ |
f4de00ed | 2119 | total_rx_packets++; |
fdabfc8a | 2120 | } |
9a799d71 | 2121 | |
c267fc16 AD |
2122 | u64_stats_update_begin(&rx_ring->syncp); |
2123 | rx_ring->stats.packets += total_rx_packets; | |
2124 | rx_ring->stats.bytes += total_rx_bytes; | |
2125 | u64_stats_update_end(&rx_ring->syncp); | |
bd198058 AD |
2126 | q_vector->rx.total_packets += total_rx_packets; |
2127 | q_vector->rx.total_bytes += total_rx_bytes; | |
4ff7fb12 | 2128 | |
5a85e737 | 2129 | return total_rx_packets; |
9a799d71 AK |
2130 | } |
2131 | ||
e0d1095a | 2132 | #ifdef CONFIG_NET_RX_BUSY_POLL |
5a85e737 ET |
2133 | /* must be called with local_bh_disable()d */ |
2134 | static int ixgbe_low_latency_recv(struct napi_struct *napi) | |
2135 | { | |
2136 | struct ixgbe_q_vector *q_vector = | |
2137 | container_of(napi, struct ixgbe_q_vector, napi); | |
2138 | struct ixgbe_adapter *adapter = q_vector->adapter; | |
2139 | struct ixgbe_ring *ring; | |
2140 | int found = 0; | |
2141 | ||
2142 | if (test_bit(__IXGBE_DOWN, &adapter->state)) | |
2143 | return LL_FLUSH_FAILED; | |
2144 | ||
2145 | if (!ixgbe_qv_lock_poll(q_vector)) | |
2146 | return LL_FLUSH_BUSY; | |
2147 | ||
2148 | ixgbe_for_each_ring(ring, q_vector->rx) { | |
2149 | found = ixgbe_clean_rx_irq(q_vector, ring, 4); | |
b4640030 | 2150 | #ifdef BP_EXTENDED_STATS |
7e15b90f ET |
2151 | if (found) |
2152 | ring->stats.cleaned += found; | |
2153 | else | |
2154 | ring->stats.misses++; | |
2155 | #endif | |
5a85e737 ET |
2156 | if (found) |
2157 | break; | |
2158 | } | |
2159 | ||
2160 | ixgbe_qv_unlock_poll(q_vector); | |
2161 | ||
2162 | return found; | |
2163 | } | |
e0d1095a | 2164 | #endif /* CONFIG_NET_RX_BUSY_POLL */ |
5a85e737 | 2165 | |
9a799d71 AK |
2166 | /** |
2167 | * ixgbe_configure_msix - Configure MSI-X hardware | |
2168 | * @adapter: board private structure | |
2169 | * | |
2170 | * ixgbe_configure_msix sets up the hardware to properly generate MSI-X | |
2171 | * interrupts. | |
2172 | **/ | |
2173 | static void ixgbe_configure_msix(struct ixgbe_adapter *adapter) | |
2174 | { | |
021230d4 | 2175 | struct ixgbe_q_vector *q_vector; |
49c7ffbe | 2176 | int v_idx; |
021230d4 | 2177 | u32 mask; |
9a799d71 | 2178 | |
8e34d1aa AD |
2179 | /* Populate MSIX to EITR Select */ |
2180 | if (adapter->num_vfs > 32) { | |
2181 | u32 eitrsel = (1 << (adapter->num_vfs - 32)) - 1; | |
2182 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_EITRSEL, eitrsel); | |
2183 | } | |
2184 | ||
4df10466 JB |
2185 | /* |
2186 | * Populate the IVAR table and set the ITR values to the | |
021230d4 AV |
2187 | * corresponding register. |
2188 | */ | |
49c7ffbe | 2189 | for (v_idx = 0; v_idx < adapter->num_q_vectors; v_idx++) { |
efe3d3c8 | 2190 | struct ixgbe_ring *ring; |
7a921c93 | 2191 | q_vector = adapter->q_vector[v_idx]; |
021230d4 | 2192 | |
a557928e | 2193 | ixgbe_for_each_ring(ring, q_vector->rx) |
efe3d3c8 AD |
2194 | ixgbe_set_ivar(adapter, 0, ring->reg_idx, v_idx); |
2195 | ||
a557928e | 2196 | ixgbe_for_each_ring(ring, q_vector->tx) |
efe3d3c8 AD |
2197 | ixgbe_set_ivar(adapter, 1, ring->reg_idx, v_idx); |
2198 | ||
fe49f04a | 2199 | ixgbe_write_eitr(q_vector); |
9a799d71 AK |
2200 | } |
2201 | ||
bd508178 AD |
2202 | switch (adapter->hw.mac.type) { |
2203 | case ixgbe_mac_82598EB: | |
e8e26350 | 2204 | ixgbe_set_ivar(adapter, -1, IXGBE_IVAR_OTHER_CAUSES_INDEX, |
e8e9f696 | 2205 | v_idx); |
bd508178 AD |
2206 | break; |
2207 | case ixgbe_mac_82599EB: | |
b93a2226 | 2208 | case ixgbe_mac_X540: |
9a75a1ac DS |
2209 | case ixgbe_mac_X550: |
2210 | case ixgbe_mac_X550EM_x: | |
e8e26350 | 2211 | ixgbe_set_ivar(adapter, -1, 1, v_idx); |
bd508178 | 2212 | break; |
bd508178 AD |
2213 | default: |
2214 | break; | |
2215 | } | |
021230d4 AV |
2216 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_EITR(v_idx), 1950); |
2217 | ||
41fb9248 | 2218 | /* set up to autoclear timer, and the vectors */ |
021230d4 | 2219 | mask = IXGBE_EIMS_ENABLE_MASK; |
d5bf4f67 ET |
2220 | mask &= ~(IXGBE_EIMS_OTHER | |
2221 | IXGBE_EIMS_MAILBOX | | |
2222 | IXGBE_EIMS_LSC); | |
2223 | ||
021230d4 | 2224 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIAC, mask); |
9a799d71 AK |
2225 | } |
2226 | ||
f494e8fa AV |
2227 | enum latency_range { |
2228 | lowest_latency = 0, | |
2229 | low_latency = 1, | |
2230 | bulk_latency = 2, | |
2231 | latency_invalid = 255 | |
2232 | }; | |
2233 | ||
2234 | /** | |
2235 | * ixgbe_update_itr - update the dynamic ITR value based on statistics | |
bd198058 AD |
2236 | * @q_vector: structure containing interrupt and ring information |
2237 | * @ring_container: structure containing ring performance data | |
f494e8fa AV |
2238 | * |
2239 | * Stores a new ITR value based on packets and byte | |
2240 | * counts during the last interrupt. The advantage of per interrupt | |
2241 | * computation is faster updates and more accurate ITR for the current | |
2242 | * traffic pattern. Constants in this function were computed | |
2243 | * based on theoretical maximum wire speed and thresholds were set based | |
2244 | * on testing data as well as attempting to minimize response time | |
2245 | * while increasing bulk throughput. | |
2246 | * this functionality is controlled by the InterruptThrottleRate module | |
2247 | * parameter (see ixgbe_param.c) | |
2248 | **/ | |
bd198058 AD |
2249 | static void ixgbe_update_itr(struct ixgbe_q_vector *q_vector, |
2250 | struct ixgbe_ring_container *ring_container) | |
f494e8fa | 2251 | { |
bd198058 AD |
2252 | int bytes = ring_container->total_bytes; |
2253 | int packets = ring_container->total_packets; | |
2254 | u32 timepassed_us; | |
621bd70e | 2255 | u64 bytes_perint; |
bd198058 | 2256 | u8 itr_setting = ring_container->itr; |
f494e8fa AV |
2257 | |
2258 | if (packets == 0) | |
bd198058 | 2259 | return; |
f494e8fa AV |
2260 | |
2261 | /* simple throttlerate management | |
621bd70e AD |
2262 | * 0-10MB/s lowest (100000 ints/s) |
2263 | * 10-20MB/s low (20000 ints/s) | |
2264 | * 20-1249MB/s bulk (8000 ints/s) | |
f494e8fa AV |
2265 | */ |
2266 | /* what was last interrupt timeslice? */ | |
d5bf4f67 | 2267 | timepassed_us = q_vector->itr >> 2; |
bdbeefe8 DS |
2268 | if (timepassed_us == 0) |
2269 | return; | |
2270 | ||
f494e8fa AV |
2271 | bytes_perint = bytes / timepassed_us; /* bytes/usec */ |
2272 | ||
2273 | switch (itr_setting) { | |
2274 | case lowest_latency: | |
621bd70e | 2275 | if (bytes_perint > 10) |
bd198058 | 2276 | itr_setting = low_latency; |
f494e8fa AV |
2277 | break; |
2278 | case low_latency: | |
621bd70e | 2279 | if (bytes_perint > 20) |
bd198058 | 2280 | itr_setting = bulk_latency; |
621bd70e | 2281 | else if (bytes_perint <= 10) |
bd198058 | 2282 | itr_setting = lowest_latency; |
f494e8fa AV |
2283 | break; |
2284 | case bulk_latency: | |
621bd70e | 2285 | if (bytes_perint <= 20) |
bd198058 | 2286 | itr_setting = low_latency; |
f494e8fa AV |
2287 | break; |
2288 | } | |
2289 | ||
bd198058 AD |
2290 | /* clear work counters since we have the values we need */ |
2291 | ring_container->total_bytes = 0; | |
2292 | ring_container->total_packets = 0; | |
2293 | ||
2294 | /* write updated itr to ring container */ | |
2295 | ring_container->itr = itr_setting; | |
f494e8fa AV |
2296 | } |
2297 | ||
509ee935 JB |
2298 | /** |
2299 | * ixgbe_write_eitr - write EITR register in hardware specific way | |
fe49f04a | 2300 | * @q_vector: structure containing interrupt and ring information |
509ee935 JB |
2301 | * |
2302 | * This function is made to be called by ethtool and by the driver | |
2303 | * when it needs to update EITR registers at runtime. Hardware | |
2304 | * specific quirks/differences are taken care of here. | |
2305 | */ | |
fe49f04a | 2306 | void ixgbe_write_eitr(struct ixgbe_q_vector *q_vector) |
509ee935 | 2307 | { |
fe49f04a | 2308 | struct ixgbe_adapter *adapter = q_vector->adapter; |
509ee935 | 2309 | struct ixgbe_hw *hw = &adapter->hw; |
fe49f04a | 2310 | int v_idx = q_vector->v_idx; |
5d967eb7 | 2311 | u32 itr_reg = q_vector->itr & IXGBE_MAX_EITR; |
fe49f04a | 2312 | |
bd508178 AD |
2313 | switch (adapter->hw.mac.type) { |
2314 | case ixgbe_mac_82598EB: | |
509ee935 JB |
2315 | /* must write high and low 16 bits to reset counter */ |
2316 | itr_reg |= (itr_reg << 16); | |
bd508178 AD |
2317 | break; |
2318 | case ixgbe_mac_82599EB: | |
b93a2226 | 2319 | case ixgbe_mac_X540: |
9a75a1ac DS |
2320 | case ixgbe_mac_X550: |
2321 | case ixgbe_mac_X550EM_x: | |
509ee935 JB |
2322 | /* |
2323 | * set the WDIS bit to not clear the timer bits and cause an | |
2324 | * immediate assertion of the interrupt | |
2325 | */ | |
2326 | itr_reg |= IXGBE_EITR_CNT_WDIS; | |
bd508178 AD |
2327 | break; |
2328 | default: | |
2329 | break; | |
509ee935 JB |
2330 | } |
2331 | IXGBE_WRITE_REG(hw, IXGBE_EITR(v_idx), itr_reg); | |
2332 | } | |
2333 | ||
bd198058 | 2334 | static void ixgbe_set_itr(struct ixgbe_q_vector *q_vector) |
f494e8fa | 2335 | { |
d5bf4f67 | 2336 | u32 new_itr = q_vector->itr; |
bd198058 | 2337 | u8 current_itr; |
f494e8fa | 2338 | |
bd198058 AD |
2339 | ixgbe_update_itr(q_vector, &q_vector->tx); |
2340 | ixgbe_update_itr(q_vector, &q_vector->rx); | |
f494e8fa | 2341 | |
08c8833b | 2342 | current_itr = max(q_vector->rx.itr, q_vector->tx.itr); |
f494e8fa AV |
2343 | |
2344 | switch (current_itr) { | |
2345 | /* counts and packets in update_itr are dependent on these numbers */ | |
2346 | case lowest_latency: | |
d5bf4f67 | 2347 | new_itr = IXGBE_100K_ITR; |
f494e8fa AV |
2348 | break; |
2349 | case low_latency: | |
d5bf4f67 | 2350 | new_itr = IXGBE_20K_ITR; |
f494e8fa AV |
2351 | break; |
2352 | case bulk_latency: | |
d5bf4f67 | 2353 | new_itr = IXGBE_8K_ITR; |
f494e8fa | 2354 | break; |
bd198058 AD |
2355 | default: |
2356 | break; | |
f494e8fa AV |
2357 | } |
2358 | ||
d5bf4f67 | 2359 | if (new_itr != q_vector->itr) { |
fe49f04a | 2360 | /* do an exponential smoothing */ |
d5bf4f67 ET |
2361 | new_itr = (10 * new_itr * q_vector->itr) / |
2362 | ((9 * new_itr) + q_vector->itr); | |
509ee935 | 2363 | |
bd198058 | 2364 | /* save the algorithm value here */ |
5d967eb7 | 2365 | q_vector->itr = new_itr; |
fe49f04a AD |
2366 | |
2367 | ixgbe_write_eitr(q_vector); | |
f494e8fa | 2368 | } |
f494e8fa AV |
2369 | } |
2370 | ||
119fc60a | 2371 | /** |
de88eeeb | 2372 | * ixgbe_check_overtemp_subtask - check for over temperature |
f0f9778d | 2373 | * @adapter: pointer to adapter |
119fc60a | 2374 | **/ |
f0f9778d | 2375 | static void ixgbe_check_overtemp_subtask(struct ixgbe_adapter *adapter) |
119fc60a | 2376 | { |
119fc60a MC |
2377 | struct ixgbe_hw *hw = &adapter->hw; |
2378 | u32 eicr = adapter->interrupt_event; | |
2379 | ||
f0f9778d | 2380 | if (test_bit(__IXGBE_DOWN, &adapter->state)) |
7ca647bd JP |
2381 | return; |
2382 | ||
f0f9778d AD |
2383 | if (!(adapter->flags2 & IXGBE_FLAG2_TEMP_SENSOR_CAPABLE) && |
2384 | !(adapter->flags2 & IXGBE_FLAG2_TEMP_SENSOR_EVENT)) | |
2385 | return; | |
2386 | ||
2387 | adapter->flags2 &= ~IXGBE_FLAG2_TEMP_SENSOR_EVENT; | |
2388 | ||
7ca647bd | 2389 | switch (hw->device_id) { |
f0f9778d AD |
2390 | case IXGBE_DEV_ID_82599_T3_LOM: |
2391 | /* | |
2392 | * Since the warning interrupt is for both ports | |
2393 | * we don't have to check if: | |
2394 | * - This interrupt wasn't for our port. | |
2395 | * - We may have missed the interrupt so always have to | |
2396 | * check if we got a LSC | |
2397 | */ | |
9a900eca | 2398 | if (!(eicr & IXGBE_EICR_GPI_SDP0_8259X) && |
f0f9778d AD |
2399 | !(eicr & IXGBE_EICR_LSC)) |
2400 | return; | |
2401 | ||
2402 | if (!(eicr & IXGBE_EICR_LSC) && hw->mac.ops.check_link) { | |
3d292265 | 2403 | u32 speed; |
f0f9778d | 2404 | bool link_up = false; |
7ca647bd | 2405 | |
3d292265 | 2406 | hw->mac.ops.check_link(hw, &speed, &link_up, false); |
7ca647bd | 2407 | |
f0f9778d AD |
2408 | if (link_up) |
2409 | return; | |
2410 | } | |
2411 | ||
2412 | /* Check if this is not due to overtemp */ | |
2413 | if (hw->phy.ops.check_overtemp(hw) != IXGBE_ERR_OVERTEMP) | |
2414 | return; | |
2415 | ||
2416 | break; | |
7ca647bd | 2417 | default: |
597f22d6 DS |
2418 | if (adapter->hw.mac.type >= ixgbe_mac_X540) |
2419 | return; | |
9a900eca | 2420 | if (!(eicr & IXGBE_EICR_GPI_SDP0(hw))) |
119fc60a | 2421 | return; |
7ca647bd | 2422 | break; |
119fc60a | 2423 | } |
f44e751b | 2424 | e_crit(drv, "%s\n", ixgbe_overheat_msg); |
f0f9778d AD |
2425 | |
2426 | adapter->interrupt_event = 0; | |
119fc60a MC |
2427 | } |
2428 | ||
0befdb3e JB |
2429 | static void ixgbe_check_fan_failure(struct ixgbe_adapter *adapter, u32 eicr) |
2430 | { | |
2431 | struct ixgbe_hw *hw = &adapter->hw; | |
2432 | ||
2433 | if ((adapter->flags & IXGBE_FLAG_FAN_FAIL_CAPABLE) && | |
9a900eca | 2434 | (eicr & IXGBE_EICR_GPI_SDP1(hw))) { |
396e799c | 2435 | e_crit(probe, "Fan has stopped, replace the adapter\n"); |
0befdb3e | 2436 | /* write to clear the interrupt */ |
9a900eca | 2437 | IXGBE_WRITE_REG(hw, IXGBE_EICR, IXGBE_EICR_GPI_SDP1(hw)); |
0befdb3e JB |
2438 | } |
2439 | } | |
cf8280ee | 2440 | |
4f51bf70 JK |
2441 | static void ixgbe_check_overtemp_event(struct ixgbe_adapter *adapter, u32 eicr) |
2442 | { | |
9a900eca DS |
2443 | struct ixgbe_hw *hw = &adapter->hw; |
2444 | ||
4f51bf70 JK |
2445 | if (!(adapter->flags2 & IXGBE_FLAG2_TEMP_SENSOR_CAPABLE)) |
2446 | return; | |
2447 | ||
2448 | switch (adapter->hw.mac.type) { | |
2449 | case ixgbe_mac_82599EB: | |
2450 | /* | |
2451 | * Need to check link state so complete overtemp check | |
2452 | * on service task | |
2453 | */ | |
9a900eca DS |
2454 | if (((eicr & IXGBE_EICR_GPI_SDP0(hw)) || |
2455 | (eicr & IXGBE_EICR_LSC)) && | |
4f51bf70 JK |
2456 | (!test_bit(__IXGBE_DOWN, &adapter->state))) { |
2457 | adapter->interrupt_event = eicr; | |
2458 | adapter->flags2 |= IXGBE_FLAG2_TEMP_SENSOR_EVENT; | |
2459 | ixgbe_service_event_schedule(adapter); | |
2460 | return; | |
2461 | } | |
2462 | return; | |
2463 | case ixgbe_mac_X540: | |
2464 | if (!(eicr & IXGBE_EICR_TS)) | |
2465 | return; | |
2466 | break; | |
2467 | default: | |
2468 | return; | |
2469 | } | |
2470 | ||
f44e751b | 2471 | e_crit(drv, "%s\n", ixgbe_overheat_msg); |
4f51bf70 JK |
2472 | } |
2473 | ||
45788d2a DS |
2474 | static inline bool ixgbe_is_sfp(struct ixgbe_hw *hw) |
2475 | { | |
2476 | switch (hw->mac.type) { | |
2477 | case ixgbe_mac_82598EB: | |
2478 | if (hw->phy.type == ixgbe_phy_nl) | |
2479 | return true; | |
2480 | return false; | |
2481 | case ixgbe_mac_82599EB: | |
2482 | case ixgbe_mac_X550EM_x: | |
2483 | switch (hw->mac.ops.get_media_type(hw)) { | |
2484 | case ixgbe_media_type_fiber: | |
2485 | case ixgbe_media_type_fiber_qsfp: | |
2486 | return true; | |
2487 | default: | |
2488 | return false; | |
2489 | } | |
2490 | default: | |
2491 | return false; | |
2492 | } | |
2493 | } | |
2494 | ||
e8e26350 PW |
2495 | static void ixgbe_check_sfp_event(struct ixgbe_adapter *adapter, u32 eicr) |
2496 | { | |
2497 | struct ixgbe_hw *hw = &adapter->hw; | |
2498 | ||
9a900eca | 2499 | if (eicr & IXGBE_EICR_GPI_SDP2(hw)) { |
73c4b7cd | 2500 | /* Clear the interrupt */ |
9a900eca | 2501 | IXGBE_WRITE_REG(hw, IXGBE_EICR, IXGBE_EICR_GPI_SDP2(hw)); |
7086400d AD |
2502 | if (!test_bit(__IXGBE_DOWN, &adapter->state)) { |
2503 | adapter->flags2 |= IXGBE_FLAG2_SFP_NEEDS_RESET; | |
2504 | ixgbe_service_event_schedule(adapter); | |
2505 | } | |
73c4b7cd AD |
2506 | } |
2507 | ||
9a900eca | 2508 | if (eicr & IXGBE_EICR_GPI_SDP1(hw)) { |
e8e26350 | 2509 | /* Clear the interrupt */ |
9a900eca | 2510 | IXGBE_WRITE_REG(hw, IXGBE_EICR, IXGBE_EICR_GPI_SDP1(hw)); |
7086400d AD |
2511 | if (!test_bit(__IXGBE_DOWN, &adapter->state)) { |
2512 | adapter->flags |= IXGBE_FLAG_NEED_LINK_CONFIG; | |
2513 | ixgbe_service_event_schedule(adapter); | |
2514 | } | |
e8e26350 PW |
2515 | } |
2516 | } | |
2517 | ||
cf8280ee JB |
2518 | static void ixgbe_check_lsc(struct ixgbe_adapter *adapter) |
2519 | { | |
2520 | struct ixgbe_hw *hw = &adapter->hw; | |
2521 | ||
2522 | adapter->lsc_int++; | |
2523 | adapter->flags |= IXGBE_FLAG_NEED_LINK_UPDATE; | |
2524 | adapter->link_check_timeout = jiffies; | |
2525 | if (!test_bit(__IXGBE_DOWN, &adapter->state)) { | |
2526 | IXGBE_WRITE_REG(hw, IXGBE_EIMC, IXGBE_EIMC_LSC); | |
8a0717f3 | 2527 | IXGBE_WRITE_FLUSH(hw); |
93c52dd0 | 2528 | ixgbe_service_event_schedule(adapter); |
cf8280ee JB |
2529 | } |
2530 | } | |
2531 | ||
fe49f04a AD |
2532 | static inline void ixgbe_irq_enable_queues(struct ixgbe_adapter *adapter, |
2533 | u64 qmask) | |
2534 | { | |
2535 | u32 mask; | |
bd508178 | 2536 | struct ixgbe_hw *hw = &adapter->hw; |
fe49f04a | 2537 | |
bd508178 AD |
2538 | switch (hw->mac.type) { |
2539 | case ixgbe_mac_82598EB: | |
fe49f04a | 2540 | mask = (IXGBE_EIMS_RTX_QUEUE & qmask); |
bd508178 AD |
2541 | IXGBE_WRITE_REG(hw, IXGBE_EIMS, mask); |
2542 | break; | |
2543 | case ixgbe_mac_82599EB: | |
b93a2226 | 2544 | case ixgbe_mac_X540: |
9a75a1ac DS |
2545 | case ixgbe_mac_X550: |
2546 | case ixgbe_mac_X550EM_x: | |
fe49f04a | 2547 | mask = (qmask & 0xFFFFFFFF); |
bd508178 AD |
2548 | if (mask) |
2549 | IXGBE_WRITE_REG(hw, IXGBE_EIMS_EX(0), mask); | |
fe49f04a | 2550 | mask = (qmask >> 32); |
bd508178 AD |
2551 | if (mask) |
2552 | IXGBE_WRITE_REG(hw, IXGBE_EIMS_EX(1), mask); | |
2553 | break; | |
2554 | default: | |
2555 | break; | |
fe49f04a AD |
2556 | } |
2557 | /* skip the flush */ | |
2558 | } | |
2559 | ||
2560 | static inline void ixgbe_irq_disable_queues(struct ixgbe_adapter *adapter, | |
e8e9f696 | 2561 | u64 qmask) |
fe49f04a AD |
2562 | { |
2563 | u32 mask; | |
bd508178 | 2564 | struct ixgbe_hw *hw = &adapter->hw; |
fe49f04a | 2565 | |
bd508178 AD |
2566 | switch (hw->mac.type) { |
2567 | case ixgbe_mac_82598EB: | |
fe49f04a | 2568 | mask = (IXGBE_EIMS_RTX_QUEUE & qmask); |
bd508178 AD |
2569 | IXGBE_WRITE_REG(hw, IXGBE_EIMC, mask); |
2570 | break; | |
2571 | case ixgbe_mac_82599EB: | |
b93a2226 | 2572 | case ixgbe_mac_X540: |
9a75a1ac DS |
2573 | case ixgbe_mac_X550: |
2574 | case ixgbe_mac_X550EM_x: | |
fe49f04a | 2575 | mask = (qmask & 0xFFFFFFFF); |
bd508178 AD |
2576 | if (mask) |
2577 | IXGBE_WRITE_REG(hw, IXGBE_EIMC_EX(0), mask); | |
fe49f04a | 2578 | mask = (qmask >> 32); |
bd508178 AD |
2579 | if (mask) |
2580 | IXGBE_WRITE_REG(hw, IXGBE_EIMC_EX(1), mask); | |
2581 | break; | |
2582 | default: | |
2583 | break; | |
fe49f04a AD |
2584 | } |
2585 | /* skip the flush */ | |
2586 | } | |
2587 | ||
021230d4 | 2588 | /** |
2c4af694 AD |
2589 | * ixgbe_irq_enable - Enable default interrupt generation settings |
2590 | * @adapter: board private structure | |
021230d4 | 2591 | **/ |
2c4af694 AD |
2592 | static inline void ixgbe_irq_enable(struct ixgbe_adapter *adapter, bool queues, |
2593 | bool flush) | |
9a799d71 | 2594 | { |
9a900eca | 2595 | struct ixgbe_hw *hw = &adapter->hw; |
2c4af694 | 2596 | u32 mask = (IXGBE_EIMS_ENABLE_MASK & ~IXGBE_EIMS_RTX_QUEUE); |
9a799d71 | 2597 | |
2c4af694 AD |
2598 | /* don't reenable LSC while waiting for link */ |
2599 | if (adapter->flags & IXGBE_FLAG_NEED_LINK_UPDATE) | |
2600 | mask &= ~IXGBE_EIMS_LSC; | |
9a799d71 | 2601 | |
2c4af694 | 2602 | if (adapter->flags2 & IXGBE_FLAG2_TEMP_SENSOR_CAPABLE) |
4f51bf70 JK |
2603 | switch (adapter->hw.mac.type) { |
2604 | case ixgbe_mac_82599EB: | |
9a900eca | 2605 | mask |= IXGBE_EIMS_GPI_SDP0(hw); |
4f51bf70 JK |
2606 | break; |
2607 | case ixgbe_mac_X540: | |
9a75a1ac DS |
2608 | case ixgbe_mac_X550: |
2609 | case ixgbe_mac_X550EM_x: | |
4f51bf70 JK |
2610 | mask |= IXGBE_EIMS_TS; |
2611 | break; | |
2612 | default: | |
2613 | break; | |
2614 | } | |
2c4af694 | 2615 | if (adapter->flags & IXGBE_FLAG_FAN_FAIL_CAPABLE) |
9a900eca | 2616 | mask |= IXGBE_EIMS_GPI_SDP1(hw); |
2c4af694 AD |
2617 | switch (adapter->hw.mac.type) { |
2618 | case ixgbe_mac_82599EB: | |
9a900eca DS |
2619 | mask |= IXGBE_EIMS_GPI_SDP1(hw); |
2620 | mask |= IXGBE_EIMS_GPI_SDP2(hw); | |
9a75a1ac | 2621 | /* fall through */ |
858bc081 | 2622 | case ixgbe_mac_X540: |
9a75a1ac DS |
2623 | case ixgbe_mac_X550: |
2624 | case ixgbe_mac_X550EM_x: | |
597f22d6 DS |
2625 | if (adapter->hw.phy.type == ixgbe_phy_x550em_ext_t) |
2626 | mask |= IXGBE_EICR_GPI_SDP0_X540; | |
858bc081 | 2627 | mask |= IXGBE_EIMS_ECC; |
2c4af694 AD |
2628 | mask |= IXGBE_EIMS_MAILBOX; |
2629 | break; | |
2630 | default: | |
2631 | break; | |
9a799d71 | 2632 | } |
db0677fa | 2633 | |
2c4af694 AD |
2634 | if ((adapter->flags & IXGBE_FLAG_FDIR_HASH_CAPABLE) && |
2635 | !(adapter->flags2 & IXGBE_FLAG2_FDIR_REQUIRES_REINIT)) | |
2636 | mask |= IXGBE_EIMS_FLOW_DIR; | |
9a799d71 | 2637 | |
2c4af694 AD |
2638 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIMS, mask); |
2639 | if (queues) | |
2640 | ixgbe_irq_enable_queues(adapter, ~0); | |
2641 | if (flush) | |
2642 | IXGBE_WRITE_FLUSH(&adapter->hw); | |
9a799d71 AK |
2643 | } |
2644 | ||
2c4af694 | 2645 | static irqreturn_t ixgbe_msix_other(int irq, void *data) |
f0848276 | 2646 | { |
a65151ba | 2647 | struct ixgbe_adapter *adapter = data; |
9a799d71 | 2648 | struct ixgbe_hw *hw = &adapter->hw; |
54037505 | 2649 | u32 eicr; |
91281fd3 | 2650 | |
54037505 DS |
2651 | /* |
2652 | * Workaround for Silicon errata. Use clear-by-write instead | |
2653 | * of clear-by-read. Reading with EICS will return the | |
2654 | * interrupt causes without clearing, which later be done | |
2655 | * with the write to EICR. | |
2656 | */ | |
2657 | eicr = IXGBE_READ_REG(hw, IXGBE_EICS); | |
d87d8307 JK |
2658 | |
2659 | /* The lower 16bits of the EICR register are for the queue interrupts | |
dbedd44e | 2660 | * which should be masked here in order to not accidentally clear them if |
d87d8307 JK |
2661 | * the bits are high when ixgbe_msix_other is called. There is a race |
2662 | * condition otherwise which results in possible performance loss | |
2663 | * especially if the ixgbe_msix_other interrupt is triggering | |
2664 | * consistently (as it would when PPS is turned on for the X540 device) | |
2665 | */ | |
2666 | eicr &= 0xFFFF0000; | |
2667 | ||
54037505 | 2668 | IXGBE_WRITE_REG(hw, IXGBE_EICR, eicr); |
33cf09c9 | 2669 | |
cf8280ee JB |
2670 | if (eicr & IXGBE_EICR_LSC) |
2671 | ixgbe_check_lsc(adapter); | |
f0848276 | 2672 | |
1cdd1ec8 GR |
2673 | if (eicr & IXGBE_EICR_MAILBOX) |
2674 | ixgbe_msg_task(adapter); | |
efe3d3c8 | 2675 | |
bd508178 AD |
2676 | switch (hw->mac.type) { |
2677 | case ixgbe_mac_82599EB: | |
b93a2226 | 2678 | case ixgbe_mac_X540: |
9a75a1ac DS |
2679 | case ixgbe_mac_X550: |
2680 | case ixgbe_mac_X550EM_x: | |
597f22d6 DS |
2681 | if (hw->phy.type == ixgbe_phy_x550em_ext_t && |
2682 | (eicr & IXGBE_EICR_GPI_SDP0_X540)) { | |
2683 | adapter->flags2 |= IXGBE_FLAG2_PHY_INTERRUPT; | |
2684 | ixgbe_service_event_schedule(adapter); | |
2685 | IXGBE_WRITE_REG(hw, IXGBE_EICR, | |
2686 | IXGBE_EICR_GPI_SDP0_X540); | |
2687 | } | |
d773ce2d DS |
2688 | if (eicr & IXGBE_EICR_ECC) { |
2689 | e_info(link, "Received ECC Err, initiating reset\n"); | |
2690 | adapter->flags2 |= IXGBE_FLAG2_RESET_REQUESTED; | |
2691 | ixgbe_service_event_schedule(adapter); | |
2692 | IXGBE_WRITE_REG(hw, IXGBE_EICR, IXGBE_EICR_ECC); | |
2693 | } | |
c4cf55e5 PWJ |
2694 | /* Handle Flow Director Full threshold interrupt */ |
2695 | if (eicr & IXGBE_EICR_FLOW_DIR) { | |
d034acf1 | 2696 | int reinit_count = 0; |
c4cf55e5 | 2697 | int i; |
c4cf55e5 | 2698 | for (i = 0; i < adapter->num_tx_queues; i++) { |
d034acf1 | 2699 | struct ixgbe_ring *ring = adapter->tx_ring[i]; |
7d637bcc | 2700 | if (test_and_clear_bit(__IXGBE_TX_FDIR_INIT_DONE, |
d034acf1 AD |
2701 | &ring->state)) |
2702 | reinit_count++; | |
2703 | } | |
2704 | if (reinit_count) { | |
2705 | /* no more flow director interrupts until after init */ | |
2706 | IXGBE_WRITE_REG(hw, IXGBE_EIMC, IXGBE_EIMC_FLOW_DIR); | |
d034acf1 AD |
2707 | adapter->flags2 |= IXGBE_FLAG2_FDIR_REQUIRES_REINIT; |
2708 | ixgbe_service_event_schedule(adapter); | |
c4cf55e5 PWJ |
2709 | } |
2710 | } | |
f0f9778d | 2711 | ixgbe_check_sfp_event(adapter, eicr); |
4f51bf70 | 2712 | ixgbe_check_overtemp_event(adapter, eicr); |
bd508178 AD |
2713 | break; |
2714 | default: | |
2715 | break; | |
c4cf55e5 | 2716 | } |
f0848276 | 2717 | |
bd508178 | 2718 | ixgbe_check_fan_failure(adapter, eicr); |
db0677fa | 2719 | |
db0677fa JK |
2720 | if (unlikely(eicr & IXGBE_EICR_TIMESYNC)) |
2721 | ixgbe_ptp_check_pps_event(adapter, eicr); | |
efe3d3c8 | 2722 | |
7086400d | 2723 | /* re-enable the original interrupt state, no lsc, no queues */ |
d4f80882 | 2724 | if (!test_bit(__IXGBE_DOWN, &adapter->state)) |
2c4af694 | 2725 | ixgbe_irq_enable(adapter, false, false); |
f0848276 | 2726 | |
9a799d71 | 2727 | return IRQ_HANDLED; |
f0848276 | 2728 | } |
91281fd3 | 2729 | |
4ff7fb12 | 2730 | static irqreturn_t ixgbe_msix_clean_rings(int irq, void *data) |
91281fd3 | 2731 | { |
021230d4 | 2732 | struct ixgbe_q_vector *q_vector = data; |
91281fd3 | 2733 | |
9b471446 | 2734 | /* EIAM disabled interrupts (on this vector) for us */ |
91281fd3 | 2735 | |
4ff7fb12 AD |
2736 | if (q_vector->rx.ring || q_vector->tx.ring) |
2737 | napi_schedule(&q_vector->napi); | |
91281fd3 | 2738 | |
9a799d71 | 2739 | return IRQ_HANDLED; |
91281fd3 AD |
2740 | } |
2741 | ||
eb01b975 AD |
2742 | /** |
2743 | * ixgbe_poll - NAPI Rx polling callback | |
2744 | * @napi: structure for representing this polling device | |
2745 | * @budget: how many packets driver is allowed to clean | |
2746 | * | |
2747 | * This function is used for legacy and MSI, NAPI mode | |
2748 | **/ | |
8af3c33f | 2749 | int ixgbe_poll(struct napi_struct *napi, int budget) |
eb01b975 AD |
2750 | { |
2751 | struct ixgbe_q_vector *q_vector = | |
2752 | container_of(napi, struct ixgbe_q_vector, napi); | |
2753 | struct ixgbe_adapter *adapter = q_vector->adapter; | |
2754 | struct ixgbe_ring *ring; | |
2755 | int per_ring_budget; | |
2756 | bool clean_complete = true; | |
2757 | ||
2758 | #ifdef CONFIG_IXGBE_DCA | |
2759 | if (adapter->flags & IXGBE_FLAG_DCA_ENABLED) | |
2760 | ixgbe_update_dca(q_vector); | |
2761 | #endif | |
2762 | ||
2763 | ixgbe_for_each_ring(ring, q_vector->tx) | |
2764 | clean_complete &= !!ixgbe_clean_tx_irq(q_vector, ring); | |
2765 | ||
5a85e737 ET |
2766 | if (!ixgbe_qv_lock_napi(q_vector)) |
2767 | return budget; | |
2768 | ||
eb01b975 AD |
2769 | /* attempt to distribute budget to each queue fairly, but don't allow |
2770 | * the budget to go below 1 because we'll exit polling */ | |
2771 | if (q_vector->rx.count > 1) | |
2772 | per_ring_budget = max(budget/q_vector->rx.count, 1); | |
2773 | else | |
2774 | per_ring_budget = budget; | |
2775 | ||
2776 | ixgbe_for_each_ring(ring, q_vector->rx) | |
5a85e737 ET |
2777 | clean_complete &= (ixgbe_clean_rx_irq(q_vector, ring, |
2778 | per_ring_budget) < per_ring_budget); | |
eb01b975 | 2779 | |
5a85e737 | 2780 | ixgbe_qv_unlock_napi(q_vector); |
eb01b975 AD |
2781 | /* If all work not completed, return budget and keep polling */ |
2782 | if (!clean_complete) | |
2783 | return budget; | |
2784 | ||
2785 | /* all work done, exit the polling mode */ | |
2786 | napi_complete(napi); | |
2787 | if (adapter->rx_itr_setting & 1) | |
2788 | ixgbe_set_itr(q_vector); | |
2789 | if (!test_bit(__IXGBE_DOWN, &adapter->state)) | |
2790 | ixgbe_irq_enable_queues(adapter, ((u64)1 << q_vector->v_idx)); | |
2791 | ||
2792 | return 0; | |
2793 | } | |
2794 | ||
021230d4 AV |
2795 | /** |
2796 | * ixgbe_request_msix_irqs - Initialize MSI-X interrupts | |
2797 | * @adapter: board private structure | |
2798 | * | |
2799 | * ixgbe_request_msix_irqs allocates MSI-X vectors and requests | |
2800 | * interrupts from the kernel. | |
2801 | **/ | |
2802 | static int ixgbe_request_msix_irqs(struct ixgbe_adapter *adapter) | |
2803 | { | |
2804 | struct net_device *netdev = adapter->netdev; | |
207867f5 | 2805 | int vector, err; |
e8e9f696 | 2806 | int ri = 0, ti = 0; |
021230d4 | 2807 | |
49c7ffbe | 2808 | for (vector = 0; vector < adapter->num_q_vectors; vector++) { |
d0759ebb | 2809 | struct ixgbe_q_vector *q_vector = adapter->q_vector[vector]; |
207867f5 | 2810 | struct msix_entry *entry = &adapter->msix_entries[vector]; |
cb13fc20 | 2811 | |
4ff7fb12 | 2812 | if (q_vector->tx.ring && q_vector->rx.ring) { |
9fe93afd | 2813 | snprintf(q_vector->name, sizeof(q_vector->name) - 1, |
4ff7fb12 AD |
2814 | "%s-%s-%d", netdev->name, "TxRx", ri++); |
2815 | ti++; | |
2816 | } else if (q_vector->rx.ring) { | |
9fe93afd | 2817 | snprintf(q_vector->name, sizeof(q_vector->name) - 1, |
4ff7fb12 AD |
2818 | "%s-%s-%d", netdev->name, "rx", ri++); |
2819 | } else if (q_vector->tx.ring) { | |
9fe93afd | 2820 | snprintf(q_vector->name, sizeof(q_vector->name) - 1, |
4ff7fb12 | 2821 | "%s-%s-%d", netdev->name, "tx", ti++); |
d0759ebb AD |
2822 | } else { |
2823 | /* skip this unused q_vector */ | |
2824 | continue; | |
32aa77a4 | 2825 | } |
207867f5 AD |
2826 | err = request_irq(entry->vector, &ixgbe_msix_clean_rings, 0, |
2827 | q_vector->name, q_vector); | |
9a799d71 | 2828 | if (err) { |
396e799c | 2829 | e_err(probe, "request_irq failed for MSIX interrupt " |
849c4542 | 2830 | "Error: %d\n", err); |
021230d4 | 2831 | goto free_queue_irqs; |
9a799d71 | 2832 | } |
207867f5 AD |
2833 | /* If Flow Director is enabled, set interrupt affinity */ |
2834 | if (adapter->flags & IXGBE_FLAG_FDIR_HASH_CAPABLE) { | |
2835 | /* assign the mask for this irq */ | |
2836 | irq_set_affinity_hint(entry->vector, | |
de88eeeb | 2837 | &q_vector->affinity_mask); |
207867f5 | 2838 | } |
9a799d71 AK |
2839 | } |
2840 | ||
021230d4 | 2841 | err = request_irq(adapter->msix_entries[vector].vector, |
2c4af694 | 2842 | ixgbe_msix_other, 0, netdev->name, adapter); |
9a799d71 | 2843 | if (err) { |
de88eeeb | 2844 | e_err(probe, "request_irq for msix_other failed: %d\n", err); |
021230d4 | 2845 | goto free_queue_irqs; |
9a799d71 AK |
2846 | } |
2847 | ||
9a799d71 AK |
2848 | return 0; |
2849 | ||
021230d4 | 2850 | free_queue_irqs: |
207867f5 AD |
2851 | while (vector) { |
2852 | vector--; | |
2853 | irq_set_affinity_hint(adapter->msix_entries[vector].vector, | |
2854 | NULL); | |
2855 | free_irq(adapter->msix_entries[vector].vector, | |
2856 | adapter->q_vector[vector]); | |
2857 | } | |
021230d4 AV |
2858 | adapter->flags &= ~IXGBE_FLAG_MSIX_ENABLED; |
2859 | pci_disable_msix(adapter->pdev); | |
9a799d71 AK |
2860 | kfree(adapter->msix_entries); |
2861 | adapter->msix_entries = NULL; | |
9a799d71 AK |
2862 | return err; |
2863 | } | |
2864 | ||
2865 | /** | |
021230d4 | 2866 | * ixgbe_intr - legacy mode Interrupt Handler |
9a799d71 AK |
2867 | * @irq: interrupt number |
2868 | * @data: pointer to a network interface device structure | |
9a799d71 AK |
2869 | **/ |
2870 | static irqreturn_t ixgbe_intr(int irq, void *data) | |
2871 | { | |
a65151ba | 2872 | struct ixgbe_adapter *adapter = data; |
9a799d71 | 2873 | struct ixgbe_hw *hw = &adapter->hw; |
7a921c93 | 2874 | struct ixgbe_q_vector *q_vector = adapter->q_vector[0]; |
9a799d71 AK |
2875 | u32 eicr; |
2876 | ||
54037505 | 2877 | /* |
24ddd967 | 2878 | * Workaround for silicon errata #26 on 82598. Mask the interrupt |
54037505 DS |
2879 | * before the read of EICR. |
2880 | */ | |
2881 | IXGBE_WRITE_REG(hw, IXGBE_EIMC, IXGBE_IRQ_CLEAR_MASK); | |
2882 | ||
021230d4 | 2883 | /* for NAPI, using EIAM to auto-mask tx/rx interrupt bits on read |
52f33af8 | 2884 | * therefore no explicit interrupt disable is necessary */ |
021230d4 | 2885 | eicr = IXGBE_READ_REG(hw, IXGBE_EICR); |
f47cf66e | 2886 | if (!eicr) { |
6af3b9eb ET |
2887 | /* |
2888 | * shared interrupt alert! | |
f47cf66e | 2889 | * make sure interrupts are enabled because the read will |
6af3b9eb ET |
2890 | * have disabled interrupts due to EIAM |
2891 | * finish the workaround of silicon errata on 82598. Unmask | |
2892 | * the interrupt that we masked before the EICR read. | |
2893 | */ | |
2894 | if (!test_bit(__IXGBE_DOWN, &adapter->state)) | |
2895 | ixgbe_irq_enable(adapter, true, true); | |
9a799d71 | 2896 | return IRQ_NONE; /* Not our interrupt */ |
f47cf66e | 2897 | } |
9a799d71 | 2898 | |
cf8280ee JB |
2899 | if (eicr & IXGBE_EICR_LSC) |
2900 | ixgbe_check_lsc(adapter); | |
021230d4 | 2901 | |
bd508178 AD |
2902 | switch (hw->mac.type) { |
2903 | case ixgbe_mac_82599EB: | |
e8e26350 | 2904 | ixgbe_check_sfp_event(adapter, eicr); |
0ccb974d DS |
2905 | /* Fall through */ |
2906 | case ixgbe_mac_X540: | |
9a75a1ac DS |
2907 | case ixgbe_mac_X550: |
2908 | case ixgbe_mac_X550EM_x: | |
d773ce2d DS |
2909 | if (eicr & IXGBE_EICR_ECC) { |
2910 | e_info(link, "Received ECC Err, initiating reset\n"); | |
2911 | adapter->flags2 |= IXGBE_FLAG2_RESET_REQUESTED; | |
2912 | ixgbe_service_event_schedule(adapter); | |
2913 | IXGBE_WRITE_REG(hw, IXGBE_EICR, IXGBE_EICR_ECC); | |
2914 | } | |
4f51bf70 | 2915 | ixgbe_check_overtemp_event(adapter, eicr); |
bd508178 AD |
2916 | break; |
2917 | default: | |
2918 | break; | |
2919 | } | |
e8e26350 | 2920 | |
0befdb3e | 2921 | ixgbe_check_fan_failure(adapter, eicr); |
db0677fa JK |
2922 | if (unlikely(eicr & IXGBE_EICR_TIMESYNC)) |
2923 | ixgbe_ptp_check_pps_event(adapter, eicr); | |
0befdb3e | 2924 | |
b9f6ed2b AD |
2925 | /* would disable interrupts here but EIAM disabled it */ |
2926 | napi_schedule(&q_vector->napi); | |
9a799d71 | 2927 | |
6af3b9eb ET |
2928 | /* |
2929 | * re-enable link(maybe) and non-queue interrupts, no flush. | |
2930 | * ixgbe_poll will re-enable the queue interrupts | |
2931 | */ | |
6af3b9eb ET |
2932 | if (!test_bit(__IXGBE_DOWN, &adapter->state)) |
2933 | ixgbe_irq_enable(adapter, false, false); | |
2934 | ||
9a799d71 AK |
2935 | return IRQ_HANDLED; |
2936 | } | |
2937 | ||
2938 | /** | |
2939 | * ixgbe_request_irq - initialize interrupts | |
2940 | * @adapter: board private structure | |
2941 | * | |
2942 | * Attempts to configure interrupts using the best available | |
2943 | * capabilities of the hardware and kernel. | |
2944 | **/ | |
021230d4 | 2945 | static int ixgbe_request_irq(struct ixgbe_adapter *adapter) |
9a799d71 AK |
2946 | { |
2947 | struct net_device *netdev = adapter->netdev; | |
021230d4 | 2948 | int err; |
9a799d71 | 2949 | |
4cc6df29 | 2950 | if (adapter->flags & IXGBE_FLAG_MSIX_ENABLED) |
021230d4 | 2951 | err = ixgbe_request_msix_irqs(adapter); |
4cc6df29 | 2952 | else if (adapter->flags & IXGBE_FLAG_MSI_ENABLED) |
a0607fd3 | 2953 | err = request_irq(adapter->pdev->irq, ixgbe_intr, 0, |
a65151ba | 2954 | netdev->name, adapter); |
4cc6df29 | 2955 | else |
a0607fd3 | 2956 | err = request_irq(adapter->pdev->irq, ixgbe_intr, IRQF_SHARED, |
a65151ba | 2957 | netdev->name, adapter); |
9a799d71 | 2958 | |
de88eeeb | 2959 | if (err) |
396e799c | 2960 | e_err(probe, "request_irq failed, Error %d\n", err); |
9a799d71 | 2961 | |
9a799d71 AK |
2962 | return err; |
2963 | } | |
2964 | ||
2965 | static void ixgbe_free_irq(struct ixgbe_adapter *adapter) | |
2966 | { | |
49c7ffbe | 2967 | int vector; |
9a799d71 | 2968 | |
49c7ffbe AD |
2969 | if (!(adapter->flags & IXGBE_FLAG_MSIX_ENABLED)) { |
2970 | free_irq(adapter->pdev->irq, adapter); | |
2971 | return; | |
2972 | } | |
4cc6df29 | 2973 | |
49c7ffbe AD |
2974 | for (vector = 0; vector < adapter->num_q_vectors; vector++) { |
2975 | struct ixgbe_q_vector *q_vector = adapter->q_vector[vector]; | |
2976 | struct msix_entry *entry = &adapter->msix_entries[vector]; | |
894ff7cf | 2977 | |
49c7ffbe AD |
2978 | /* free only the irqs that were actually requested */ |
2979 | if (!q_vector->rx.ring && !q_vector->tx.ring) | |
2980 | continue; | |
207867f5 | 2981 | |
49c7ffbe AD |
2982 | /* clear the affinity_mask in the IRQ descriptor */ |
2983 | irq_set_affinity_hint(entry->vector, NULL); | |
2984 | ||
2985 | free_irq(entry->vector, q_vector); | |
9a799d71 | 2986 | } |
49c7ffbe AD |
2987 | |
2988 | free_irq(adapter->msix_entries[vector++].vector, adapter); | |
9a799d71 AK |
2989 | } |
2990 | ||
22d5a71b JB |
2991 | /** |
2992 | * ixgbe_irq_disable - Mask off interrupt generation on the NIC | |
2993 | * @adapter: board private structure | |
2994 | **/ | |
2995 | static inline void ixgbe_irq_disable(struct ixgbe_adapter *adapter) | |
2996 | { | |
bd508178 AD |
2997 | switch (adapter->hw.mac.type) { |
2998 | case ixgbe_mac_82598EB: | |
835462fc | 2999 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIMC, ~0); |
bd508178 AD |
3000 | break; |
3001 | case ixgbe_mac_82599EB: | |
b93a2226 | 3002 | case ixgbe_mac_X540: |
9a75a1ac DS |
3003 | case ixgbe_mac_X550: |
3004 | case ixgbe_mac_X550EM_x: | |
835462fc NS |
3005 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIMC, 0xFFFF0000); |
3006 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIMC_EX(0), ~0); | |
22d5a71b | 3007 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIMC_EX(1), ~0); |
bd508178 AD |
3008 | break; |
3009 | default: | |
3010 | break; | |
22d5a71b JB |
3011 | } |
3012 | IXGBE_WRITE_FLUSH(&adapter->hw); | |
3013 | if (adapter->flags & IXGBE_FLAG_MSIX_ENABLED) { | |
49c7ffbe AD |
3014 | int vector; |
3015 | ||
3016 | for (vector = 0; vector < adapter->num_q_vectors; vector++) | |
3017 | synchronize_irq(adapter->msix_entries[vector].vector); | |
3018 | ||
3019 | synchronize_irq(adapter->msix_entries[vector++].vector); | |
22d5a71b JB |
3020 | } else { |
3021 | synchronize_irq(adapter->pdev->irq); | |
3022 | } | |
3023 | } | |
3024 | ||
9a799d71 AK |
3025 | /** |
3026 | * ixgbe_configure_msi_and_legacy - Initialize PIN (INTA...) and MSI interrupts | |
3027 | * | |
3028 | **/ | |
3029 | static void ixgbe_configure_msi_and_legacy(struct ixgbe_adapter *adapter) | |
3030 | { | |
d5bf4f67 | 3031 | struct ixgbe_q_vector *q_vector = adapter->q_vector[0]; |
9a799d71 | 3032 | |
d5bf4f67 | 3033 | ixgbe_write_eitr(q_vector); |
9a799d71 | 3034 | |
e8e26350 PW |
3035 | ixgbe_set_ivar(adapter, 0, 0, 0); |
3036 | ixgbe_set_ivar(adapter, 1, 0, 0); | |
021230d4 | 3037 | |
396e799c | 3038 | e_info(hw, "Legacy interrupt IVAR setup done\n"); |
9a799d71 AK |
3039 | } |
3040 | ||
43e69bf0 AD |
3041 | /** |
3042 | * ixgbe_configure_tx_ring - Configure 8259x Tx ring after Reset | |
3043 | * @adapter: board private structure | |
3044 | * @ring: structure containing ring specific data | |
3045 | * | |
3046 | * Configure the Tx descriptor ring after a reset. | |
3047 | **/ | |
84418e3b AD |
3048 | void ixgbe_configure_tx_ring(struct ixgbe_adapter *adapter, |
3049 | struct ixgbe_ring *ring) | |
43e69bf0 AD |
3050 | { |
3051 | struct ixgbe_hw *hw = &adapter->hw; | |
3052 | u64 tdba = ring->dma; | |
2f1860b8 | 3053 | int wait_loop = 10; |
b88c6de2 | 3054 | u32 txdctl = IXGBE_TXDCTL_ENABLE; |
bf29ee6c | 3055 | u8 reg_idx = ring->reg_idx; |
43e69bf0 | 3056 | |
2f1860b8 | 3057 | /* disable queue to avoid issues while updating state */ |
b88c6de2 | 3058 | IXGBE_WRITE_REG(hw, IXGBE_TXDCTL(reg_idx), 0); |
2f1860b8 AD |
3059 | IXGBE_WRITE_FLUSH(hw); |
3060 | ||
43e69bf0 | 3061 | IXGBE_WRITE_REG(hw, IXGBE_TDBAL(reg_idx), |
e8e9f696 | 3062 | (tdba & DMA_BIT_MASK(32))); |
43e69bf0 AD |
3063 | IXGBE_WRITE_REG(hw, IXGBE_TDBAH(reg_idx), (tdba >> 32)); |
3064 | IXGBE_WRITE_REG(hw, IXGBE_TDLEN(reg_idx), | |
3065 | ring->count * sizeof(union ixgbe_adv_tx_desc)); | |
3066 | IXGBE_WRITE_REG(hw, IXGBE_TDH(reg_idx), 0); | |
3067 | IXGBE_WRITE_REG(hw, IXGBE_TDT(reg_idx), 0); | |
2a1a091c | 3068 | ring->tail = adapter->io_addr + IXGBE_TDT(reg_idx); |
43e69bf0 | 3069 | |
b88c6de2 AD |
3070 | /* |
3071 | * set WTHRESH to encourage burst writeback, it should not be set | |
67da097e ET |
3072 | * higher than 1 when: |
3073 | * - ITR is 0 as it could cause false TX hangs | |
3074 | * - ITR is set to > 100k int/sec and BQL is enabled | |
b88c6de2 AD |
3075 | * |
3076 | * In order to avoid issues WTHRESH + PTHRESH should always be equal | |
3077 | * to or less than the number of on chip descriptors, which is | |
3078 | * currently 40. | |
3079 | */ | |
67da097e | 3080 | if (!ring->q_vector || (ring->q_vector->itr < IXGBE_100K_ITR)) |
b88c6de2 AD |
3081 | txdctl |= (1 << 16); /* WTHRESH = 1 */ |
3082 | else | |
3083 | txdctl |= (8 << 16); /* WTHRESH = 8 */ | |
3084 | ||
e954b374 AD |
3085 | /* |
3086 | * Setting PTHRESH to 32 both improves performance | |
3087 | * and avoids a TX hang with DFP enabled | |
3088 | */ | |
b88c6de2 AD |
3089 | txdctl |= (1 << 8) | /* HTHRESH = 1 */ |
3090 | 32; /* PTHRESH = 32 */ | |
2f1860b8 AD |
3091 | |
3092 | /* reinitialize flowdirector state */ | |
39cb681b | 3093 | if (adapter->flags & IXGBE_FLAG_FDIR_HASH_CAPABLE) { |
ee9e0f0b AD |
3094 | ring->atr_sample_rate = adapter->atr_sample_rate; |
3095 | ring->atr_count = 0; | |
3096 | set_bit(__IXGBE_TX_FDIR_INIT_DONE, &ring->state); | |
3097 | } else { | |
3098 | ring->atr_sample_rate = 0; | |
3099 | } | |
2f1860b8 | 3100 | |
fd786b7b AD |
3101 | /* initialize XPS */ |
3102 | if (!test_and_set_bit(__IXGBE_TX_XPS_INIT_DONE, &ring->state)) { | |
3103 | struct ixgbe_q_vector *q_vector = ring->q_vector; | |
3104 | ||
3105 | if (q_vector) | |
2a47fa45 | 3106 | netif_set_xps_queue(ring->netdev, |
fd786b7b AD |
3107 | &q_vector->affinity_mask, |
3108 | ring->queue_index); | |
3109 | } | |
3110 | ||
c84d324c JF |
3111 | clear_bit(__IXGBE_HANG_CHECK_ARMED, &ring->state); |
3112 | ||
2f1860b8 | 3113 | /* enable queue */ |
2f1860b8 AD |
3114 | IXGBE_WRITE_REG(hw, IXGBE_TXDCTL(reg_idx), txdctl); |
3115 | ||
3116 | /* TXDCTL.EN will return 0 on 82598 if link is down, so skip it */ | |
3117 | if (hw->mac.type == ixgbe_mac_82598EB && | |
3118 | !(IXGBE_READ_REG(hw, IXGBE_LINKS) & IXGBE_LINKS_UP)) | |
3119 | return; | |
3120 | ||
3121 | /* poll to verify queue is enabled */ | |
3122 | do { | |
032b4325 | 3123 | usleep_range(1000, 2000); |
2f1860b8 AD |
3124 | txdctl = IXGBE_READ_REG(hw, IXGBE_TXDCTL(reg_idx)); |
3125 | } while (--wait_loop && !(txdctl & IXGBE_TXDCTL_ENABLE)); | |
3126 | if (!wait_loop) | |
3127 | e_err(drv, "Could not enable Tx Queue %d\n", reg_idx); | |
43e69bf0 AD |
3128 | } |
3129 | ||
120ff942 AD |
3130 | static void ixgbe_setup_mtqc(struct ixgbe_adapter *adapter) |
3131 | { | |
3132 | struct ixgbe_hw *hw = &adapter->hw; | |
671c0adb | 3133 | u32 rttdcs, mtqc; |
8b1c0b24 | 3134 | u8 tcs = netdev_get_num_tc(adapter->netdev); |
120ff942 AD |
3135 | |
3136 | if (hw->mac.type == ixgbe_mac_82598EB) | |
3137 | return; | |
3138 | ||
3139 | /* disable the arbiter while setting MTQC */ | |
3140 | rttdcs = IXGBE_READ_REG(hw, IXGBE_RTTDCS); | |
3141 | rttdcs |= IXGBE_RTTDCS_ARBDIS; | |
3142 | IXGBE_WRITE_REG(hw, IXGBE_RTTDCS, rttdcs); | |
3143 | ||
3144 | /* set transmit pool layout */ | |
671c0adb AD |
3145 | if (adapter->flags & IXGBE_FLAG_SRIOV_ENABLED) { |
3146 | mtqc = IXGBE_MTQC_VT_ENA; | |
3147 | if (tcs > 4) | |
3148 | mtqc |= IXGBE_MTQC_RT_ENA | IXGBE_MTQC_8TC_8TQ; | |
3149 | else if (tcs > 1) | |
3150 | mtqc |= IXGBE_MTQC_RT_ENA | IXGBE_MTQC_4TC_4TQ; | |
3151 | else if (adapter->ring_feature[RING_F_RSS].indices == 4) | |
3152 | mtqc |= IXGBE_MTQC_32VF; | |
3153 | else | |
3154 | mtqc |= IXGBE_MTQC_64VF; | |
3155 | } else { | |
3156 | if (tcs > 4) | |
3157 | mtqc = IXGBE_MTQC_RT_ENA | IXGBE_MTQC_8TC_8TQ; | |
3158 | else if (tcs > 1) | |
3159 | mtqc = IXGBE_MTQC_RT_ENA | IXGBE_MTQC_4TC_4TQ; | |
8b1c0b24 | 3160 | else |
671c0adb AD |
3161 | mtqc = IXGBE_MTQC_64Q_1PB; |
3162 | } | |
120ff942 | 3163 | |
671c0adb | 3164 | IXGBE_WRITE_REG(hw, IXGBE_MTQC, mtqc); |
120ff942 | 3165 | |
671c0adb AD |
3166 | /* Enable Security TX Buffer IFG for multiple pb */ |
3167 | if (tcs) { | |
3168 | u32 sectx = IXGBE_READ_REG(hw, IXGBE_SECTXMINIFG); | |
3169 | sectx |= IXGBE_SECTX_DCB; | |
3170 | IXGBE_WRITE_REG(hw, IXGBE_SECTXMINIFG, sectx); | |
120ff942 AD |
3171 | } |
3172 | ||
3173 | /* re-enable the arbiter */ | |
3174 | rttdcs &= ~IXGBE_RTTDCS_ARBDIS; | |
3175 | IXGBE_WRITE_REG(hw, IXGBE_RTTDCS, rttdcs); | |
3176 | } | |
3177 | ||
9a799d71 | 3178 | /** |
3a581073 | 3179 | * ixgbe_configure_tx - Configure 8259x Transmit Unit after Reset |
9a799d71 AK |
3180 | * @adapter: board private structure |
3181 | * | |
3182 | * Configure the Tx unit of the MAC after a reset. | |
3183 | **/ | |
3184 | static void ixgbe_configure_tx(struct ixgbe_adapter *adapter) | |
3185 | { | |
2f1860b8 AD |
3186 | struct ixgbe_hw *hw = &adapter->hw; |
3187 | u32 dmatxctl; | |
43e69bf0 | 3188 | u32 i; |
9a799d71 | 3189 | |
2f1860b8 AD |
3190 | ixgbe_setup_mtqc(adapter); |
3191 | ||
3192 | if (hw->mac.type != ixgbe_mac_82598EB) { | |
3193 | /* DMATXCTL.EN must be before Tx queues are enabled */ | |
3194 | dmatxctl = IXGBE_READ_REG(hw, IXGBE_DMATXCTL); | |
3195 | dmatxctl |= IXGBE_DMATXCTL_TE; | |
3196 | IXGBE_WRITE_REG(hw, IXGBE_DMATXCTL, dmatxctl); | |
3197 | } | |
3198 | ||
9a799d71 | 3199 | /* Setup the HW Tx Head and Tail descriptor pointers */ |
43e69bf0 AD |
3200 | for (i = 0; i < adapter->num_tx_queues; i++) |
3201 | ixgbe_configure_tx_ring(adapter, adapter->tx_ring[i]); | |
9a799d71 AK |
3202 | } |
3203 | ||
3ebe8fde AD |
3204 | static void ixgbe_enable_rx_drop(struct ixgbe_adapter *adapter, |
3205 | struct ixgbe_ring *ring) | |
3206 | { | |
3207 | struct ixgbe_hw *hw = &adapter->hw; | |
3208 | u8 reg_idx = ring->reg_idx; | |
3209 | u32 srrctl = IXGBE_READ_REG(hw, IXGBE_SRRCTL(reg_idx)); | |
3210 | ||
3211 | srrctl |= IXGBE_SRRCTL_DROP_EN; | |
3212 | ||
3213 | IXGBE_WRITE_REG(hw, IXGBE_SRRCTL(reg_idx), srrctl); | |
3214 | } | |
3215 | ||
3216 | static void ixgbe_disable_rx_drop(struct ixgbe_adapter *adapter, | |
3217 | struct ixgbe_ring *ring) | |
3218 | { | |
3219 | struct ixgbe_hw *hw = &adapter->hw; | |
3220 | u8 reg_idx = ring->reg_idx; | |
3221 | u32 srrctl = IXGBE_READ_REG(hw, IXGBE_SRRCTL(reg_idx)); | |
3222 | ||
3223 | srrctl &= ~IXGBE_SRRCTL_DROP_EN; | |
3224 | ||
3225 | IXGBE_WRITE_REG(hw, IXGBE_SRRCTL(reg_idx), srrctl); | |
3226 | } | |
3227 | ||
3228 | #ifdef CONFIG_IXGBE_DCB | |
3229 | void ixgbe_set_rx_drop_en(struct ixgbe_adapter *adapter) | |
3230 | #else | |
3231 | static void ixgbe_set_rx_drop_en(struct ixgbe_adapter *adapter) | |
3232 | #endif | |
3233 | { | |
3234 | int i; | |
3235 | bool pfc_en = adapter->dcb_cfg.pfc_mode_enable; | |
3236 | ||
3237 | if (adapter->ixgbe_ieee_pfc) | |
3238 | pfc_en |= !!(adapter->ixgbe_ieee_pfc->pfc_en); | |
3239 | ||
3240 | /* | |
3241 | * We should set the drop enable bit if: | |
3242 | * SR-IOV is enabled | |
3243 | * or | |
3244 | * Number of Rx queues > 1 and flow control is disabled | |
3245 | * | |
3246 | * This allows us to avoid head of line blocking for security | |
3247 | * and performance reasons. | |
3248 | */ | |
3249 | if (adapter->num_vfs || (adapter->num_rx_queues > 1 && | |
3250 | !(adapter->hw.fc.current_mode & ixgbe_fc_tx_pause) && !pfc_en)) { | |
3251 | for (i = 0; i < adapter->num_rx_queues; i++) | |
3252 | ixgbe_enable_rx_drop(adapter, adapter->rx_ring[i]); | |
3253 | } else { | |
3254 | for (i = 0; i < adapter->num_rx_queues; i++) | |
3255 | ixgbe_disable_rx_drop(adapter, adapter->rx_ring[i]); | |
3256 | } | |
3257 | } | |
3258 | ||
e8e26350 | 3259 | #define IXGBE_SRRCTL_BSIZEHDRSIZE_SHIFT 2 |
cc41ac7c | 3260 | |
a6616b42 | 3261 | static void ixgbe_configure_srrctl(struct ixgbe_adapter *adapter, |
e8e9f696 | 3262 | struct ixgbe_ring *rx_ring) |
cc41ac7c | 3263 | { |
45e9baa5 | 3264 | struct ixgbe_hw *hw = &adapter->hw; |
cc41ac7c | 3265 | u32 srrctl; |
bf29ee6c | 3266 | u8 reg_idx = rx_ring->reg_idx; |
3be1adfb | 3267 | |
45e9baa5 AD |
3268 | if (hw->mac.type == ixgbe_mac_82598EB) { |
3269 | u16 mask = adapter->ring_feature[RING_F_RSS].mask; | |
cc41ac7c | 3270 | |
45e9baa5 AD |
3271 | /* |
3272 | * if VMDq is not active we must program one srrctl register | |
3273 | * per RSS queue since we have enabled RDRXCTL.MVMEN | |
3274 | */ | |
3275 | reg_idx &= mask; | |
3276 | } | |
cc41ac7c | 3277 | |
45e9baa5 AD |
3278 | /* configure header buffer length, needed for RSC */ |
3279 | srrctl = IXGBE_RX_HDR_SIZE << IXGBE_SRRCTL_BSIZEHDRSIZE_SHIFT; | |
afafd5b0 | 3280 | |
45e9baa5 | 3281 | /* configure the packet buffer length */ |
f800326d | 3282 | srrctl |= ixgbe_rx_bufsz(rx_ring) >> IXGBE_SRRCTL_BSIZEPKT_SHIFT; |
45e9baa5 AD |
3283 | |
3284 | /* configure descriptor type */ | |
f800326d | 3285 | srrctl |= IXGBE_SRRCTL_DESCTYPE_ADV_ONEBUF; |
e8e26350 | 3286 | |
45e9baa5 | 3287 | IXGBE_WRITE_REG(hw, IXGBE_SRRCTL(reg_idx), srrctl); |
cc41ac7c | 3288 | } |
9a799d71 | 3289 | |
dfaf891d VZ |
3290 | /** |
3291 | * Return a number of entries in the RSS indirection table | |
3292 | * | |
3293 | * @adapter: device handle | |
3294 | * | |
3295 | * - 82598/82599/X540: 128 | |
3296 | * - X550(non-SRIOV mode): 512 | |
3297 | * - X550(SRIOV mode): 64 | |
3298 | */ | |
7f276efb | 3299 | u32 ixgbe_rss_indir_tbl_entries(struct ixgbe_adapter *adapter) |
dfaf891d VZ |
3300 | { |
3301 | if (adapter->hw.mac.type < ixgbe_mac_X550) | |
3302 | return 128; | |
3303 | else if (adapter->flags & IXGBE_FLAG_SRIOV_ENABLED) | |
3304 | return 64; | |
3305 | else | |
3306 | return 512; | |
3307 | } | |
3308 | ||
3309 | /** | |
3310 | * Write the RETA table to HW | |
3311 | * | |
3312 | * @adapter: device handle | |
3313 | * | |
3314 | * Write the RSS redirection table stored in adapter.rss_indir_tbl[] to HW. | |
3315 | */ | |
3316 | static void ixgbe_store_reta(struct ixgbe_adapter *adapter) | |
0cefafad | 3317 | { |
dfaf891d | 3318 | u32 i, reta_entries = ixgbe_rss_indir_tbl_entries(adapter); |
05abb126 | 3319 | struct ixgbe_hw *hw = &adapter->hw; |
d1b849b9 | 3320 | u32 reta = 0; |
dfaf891d VZ |
3321 | u32 indices_multi; |
3322 | u8 *indir_tbl = adapter->rss_indir_tbl; | |
05abb126 | 3323 | |
0f9b232b | 3324 | /* Fill out the redirection table as follows: |
dfaf891d VZ |
3325 | * - 82598: 8 bit wide entries containing pair of 4 bit RSS |
3326 | * indices. | |
3327 | * - 82599/X540: 8 bit wide entries containing 4 bit RSS index | |
3328 | * - X550: 8 bit wide entries containing 6 bit RSS index | |
0f9b232b DS |
3329 | */ |
3330 | if (adapter->hw.mac.type == ixgbe_mac_82598EB) | |
3331 | indices_multi = 0x11; | |
3332 | else | |
3333 | indices_multi = 0x1; | |
3334 | ||
dfaf891d VZ |
3335 | /* Write redirection table to HW */ |
3336 | for (i = 0; i < reta_entries; i++) { | |
3337 | reta |= indices_multi * indir_tbl[i] << (i & 0x3) * 8; | |
0f9b232b DS |
3338 | if ((i & 3) == 3) { |
3339 | if (i < 128) | |
3340 | IXGBE_WRITE_REG(hw, IXGBE_RETA(i >> 2), reta); | |
3341 | else | |
3342 | IXGBE_WRITE_REG(hw, IXGBE_ERETA((i >> 2) - 32), | |
3343 | reta); | |
dfaf891d | 3344 | reta = 0; |
0f9b232b DS |
3345 | } |
3346 | } | |
3347 | } | |
3348 | ||
dfaf891d VZ |
3349 | /** |
3350 | * Write the RETA table to HW (for x550 devices in SRIOV mode) | |
3351 | * | |
3352 | * @adapter: device handle | |
3353 | * | |
3354 | * Write the RSS redirection table stored in adapter.rss_indir_tbl[] to HW. | |
3355 | */ | |
3356 | static void ixgbe_store_vfreta(struct ixgbe_adapter *adapter) | |
0f9b232b | 3357 | { |
dfaf891d | 3358 | u32 i, reta_entries = ixgbe_rss_indir_tbl_entries(adapter); |
0f9b232b DS |
3359 | struct ixgbe_hw *hw = &adapter->hw; |
3360 | u32 vfreta = 0; | |
dfaf891d VZ |
3361 | unsigned int pf_pool = adapter->num_vfs; |
3362 | ||
3363 | /* Write redirection table to HW */ | |
3364 | for (i = 0; i < reta_entries; i++) { | |
3365 | vfreta |= (u32)adapter->rss_indir_tbl[i] << (i & 0x3) * 8; | |
3366 | if ((i & 3) == 3) { | |
3367 | IXGBE_WRITE_REG(hw, IXGBE_PFVFRETA(i >> 2, pf_pool), | |
3368 | vfreta); | |
3369 | vfreta = 0; | |
3370 | } | |
3371 | } | |
3372 | } | |
3373 | ||
3374 | static void ixgbe_setup_reta(struct ixgbe_adapter *adapter) | |
3375 | { | |
3376 | struct ixgbe_hw *hw = &adapter->hw; | |
3377 | u32 i, j; | |
3378 | u32 reta_entries = ixgbe_rss_indir_tbl_entries(adapter); | |
3379 | u16 rss_i = adapter->ring_feature[RING_F_RSS].indices; | |
3380 | ||
3381 | /* Program table for at least 2 queues w/ SR-IOV so that VFs can | |
3382 | * make full use of any rings they may have. We will use the | |
3383 | * PSRTYPE register to control how many rings we use within the PF. | |
3384 | */ | |
3385 | if ((adapter->flags & IXGBE_FLAG_SRIOV_ENABLED) && (rss_i < 2)) | |
3386 | rss_i = 2; | |
3387 | ||
3388 | /* Fill out hash function seeds */ | |
3389 | for (i = 0; i < 10; i++) | |
3390 | IXGBE_WRITE_REG(hw, IXGBE_RSSRK(i), adapter->rss_key[i]); | |
3391 | ||
3392 | /* Fill out redirection table */ | |
3393 | memset(adapter->rss_indir_tbl, 0, sizeof(adapter->rss_indir_tbl)); | |
3394 | ||
3395 | for (i = 0, j = 0; i < reta_entries; i++, j++) { | |
3396 | if (j == rss_i) | |
3397 | j = 0; | |
3398 | ||
3399 | adapter->rss_indir_tbl[i] = j; | |
3400 | } | |
3401 | ||
3402 | ixgbe_store_reta(adapter); | |
3403 | } | |
3404 | ||
3405 | static void ixgbe_setup_vfreta(struct ixgbe_adapter *adapter) | |
3406 | { | |
3407 | struct ixgbe_hw *hw = &adapter->hw; | |
0f9b232b DS |
3408 | u16 rss_i = adapter->ring_feature[RING_F_RSS].indices; |
3409 | unsigned int pf_pool = adapter->num_vfs; | |
3410 | int i, j; | |
3411 | ||
3412 | /* Fill out hash function seeds */ | |
3413 | for (i = 0; i < 10; i++) | |
dfaf891d VZ |
3414 | IXGBE_WRITE_REG(hw, IXGBE_PFVFRSSRK(i, pf_pool), |
3415 | adapter->rss_key[i]); | |
0f9b232b DS |
3416 | |
3417 | /* Fill out the redirection table */ | |
3418 | for (i = 0, j = 0; i < 64; i++, j++) { | |
671c0adb | 3419 | if (j == rss_i) |
05abb126 | 3420 | j = 0; |
dfaf891d VZ |
3421 | |
3422 | adapter->rss_indir_tbl[i] = j; | |
05abb126 | 3423 | } |
dfaf891d VZ |
3424 | |
3425 | ixgbe_store_vfreta(adapter); | |
d1b849b9 DS |
3426 | } |
3427 | ||
3428 | static void ixgbe_setup_mrqc(struct ixgbe_adapter *adapter) | |
3429 | { | |
3430 | struct ixgbe_hw *hw = &adapter->hw; | |
0f9b232b | 3431 | u32 mrqc = 0, rss_field = 0, vfmrqc = 0; |
d1b849b9 | 3432 | u32 rxcsum; |
0cefafad | 3433 | |
05abb126 AD |
3434 | /* Disable indicating checksum in descriptor, enables RSS hash */ |
3435 | rxcsum = IXGBE_READ_REG(hw, IXGBE_RXCSUM); | |
3436 | rxcsum |= IXGBE_RXCSUM_PCSD; | |
3437 | IXGBE_WRITE_REG(hw, IXGBE_RXCSUM, rxcsum); | |
3438 | ||
671c0adb | 3439 | if (adapter->hw.mac.type == ixgbe_mac_82598EB) { |
fbe7ca7f | 3440 | if (adapter->ring_feature[RING_F_RSS].mask) |
671c0adb | 3441 | mrqc = IXGBE_MRQC_RSSEN; |
8b1c0b24 | 3442 | } else { |
671c0adb AD |
3443 | u8 tcs = netdev_get_num_tc(adapter->netdev); |
3444 | ||
3445 | if (adapter->flags & IXGBE_FLAG_SRIOV_ENABLED) { | |
3446 | if (tcs > 4) | |
3447 | mrqc = IXGBE_MRQC_VMDQRT8TCEN; /* 8 TCs */ | |
3448 | else if (tcs > 1) | |
3449 | mrqc = IXGBE_MRQC_VMDQRT4TCEN; /* 4 TCs */ | |
3450 | else if (adapter->ring_feature[RING_F_RSS].indices == 4) | |
3451 | mrqc = IXGBE_MRQC_VMDQRSS32EN; | |
8b1c0b24 | 3452 | else |
671c0adb AD |
3453 | mrqc = IXGBE_MRQC_VMDQRSS64EN; |
3454 | } else { | |
3455 | if (tcs > 4) | |
8b1c0b24 | 3456 | mrqc = IXGBE_MRQC_RTRSS8TCEN; |
671c0adb AD |
3457 | else if (tcs > 1) |
3458 | mrqc = IXGBE_MRQC_RTRSS4TCEN; | |
3459 | else | |
3460 | mrqc = IXGBE_MRQC_RSSEN; | |
8b1c0b24 | 3461 | } |
0cefafad JB |
3462 | } |
3463 | ||
05abb126 | 3464 | /* Perform hash on these packet types */ |
d1b849b9 DS |
3465 | rss_field |= IXGBE_MRQC_RSS_FIELD_IPV4 | |
3466 | IXGBE_MRQC_RSS_FIELD_IPV4_TCP | | |
3467 | IXGBE_MRQC_RSS_FIELD_IPV6 | | |
3468 | IXGBE_MRQC_RSS_FIELD_IPV6_TCP; | |
05abb126 | 3469 | |
ef6afc0c | 3470 | if (adapter->flags2 & IXGBE_FLAG2_RSS_FIELD_IPV4_UDP) |
d1b849b9 | 3471 | rss_field |= IXGBE_MRQC_RSS_FIELD_IPV4_UDP; |
ef6afc0c | 3472 | if (adapter->flags2 & IXGBE_FLAG2_RSS_FIELD_IPV6_UDP) |
d1b849b9 | 3473 | rss_field |= IXGBE_MRQC_RSS_FIELD_IPV6_UDP; |
ef6afc0c | 3474 | |
dfaf891d | 3475 | netdev_rss_key_fill(adapter->rss_key, sizeof(adapter->rss_key)); |
0f9b232b DS |
3476 | if ((hw->mac.type >= ixgbe_mac_X550) && |
3477 | (adapter->flags & IXGBE_FLAG_SRIOV_ENABLED)) { | |
3478 | unsigned int pf_pool = adapter->num_vfs; | |
3479 | ||
3480 | /* Enable VF RSS mode */ | |
3481 | mrqc |= IXGBE_MRQC_MULTIPLE_RSS; | |
3482 | IXGBE_WRITE_REG(hw, IXGBE_MRQC, mrqc); | |
3483 | ||
3484 | /* Setup RSS through the VF registers */ | |
dfaf891d | 3485 | ixgbe_setup_vfreta(adapter); |
0f9b232b DS |
3486 | vfmrqc = IXGBE_MRQC_RSSEN; |
3487 | vfmrqc |= rss_field; | |
3488 | IXGBE_WRITE_REG(hw, IXGBE_PFVFMRQC(pf_pool), vfmrqc); | |
3489 | } else { | |
dfaf891d | 3490 | ixgbe_setup_reta(adapter); |
0f9b232b DS |
3491 | mrqc |= rss_field; |
3492 | IXGBE_WRITE_REG(hw, IXGBE_MRQC, mrqc); | |
3493 | } | |
0cefafad JB |
3494 | } |
3495 | ||
bb5a9ad2 NS |
3496 | /** |
3497 | * ixgbe_configure_rscctl - enable RSC for the indicated ring | |
3498 | * @adapter: address of board private structure | |
3499 | * @index: index of ring to set | |
bb5a9ad2 | 3500 | **/ |
082757af | 3501 | static void ixgbe_configure_rscctl(struct ixgbe_adapter *adapter, |
7367096a | 3502 | struct ixgbe_ring *ring) |
bb5a9ad2 | 3503 | { |
bb5a9ad2 | 3504 | struct ixgbe_hw *hw = &adapter->hw; |
bb5a9ad2 | 3505 | u32 rscctrl; |
bf29ee6c | 3506 | u8 reg_idx = ring->reg_idx; |
7367096a | 3507 | |
7d637bcc | 3508 | if (!ring_is_rsc_enabled(ring)) |
7367096a | 3509 | return; |
bb5a9ad2 | 3510 | |
7367096a | 3511 | rscctrl = IXGBE_READ_REG(hw, IXGBE_RSCCTL(reg_idx)); |
bb5a9ad2 NS |
3512 | rscctrl |= IXGBE_RSCCTL_RSCEN; |
3513 | /* | |
3514 | * we must limit the number of descriptors so that the | |
3515 | * total size of max desc * buf_len is not greater | |
642c680e | 3516 | * than 65536 |
bb5a9ad2 | 3517 | */ |
f800326d | 3518 | rscctrl |= IXGBE_RSCCTL_MAXDESC_16; |
7367096a | 3519 | IXGBE_WRITE_REG(hw, IXGBE_RSCCTL(reg_idx), rscctrl); |
bb5a9ad2 NS |
3520 | } |
3521 | ||
9e10e045 AD |
3522 | #define IXGBE_MAX_RX_DESC_POLL 10 |
3523 | static void ixgbe_rx_desc_queue_enable(struct ixgbe_adapter *adapter, | |
3524 | struct ixgbe_ring *ring) | |
3525 | { | |
3526 | struct ixgbe_hw *hw = &adapter->hw; | |
9e10e045 AD |
3527 | int wait_loop = IXGBE_MAX_RX_DESC_POLL; |
3528 | u32 rxdctl; | |
bf29ee6c | 3529 | u8 reg_idx = ring->reg_idx; |
9e10e045 | 3530 | |
b0483c8f MR |
3531 | if (ixgbe_removed(hw->hw_addr)) |
3532 | return; | |
9e10e045 AD |
3533 | /* RXDCTL.EN will return 0 on 82598 if link is down, so skip it */ |
3534 | if (hw->mac.type == ixgbe_mac_82598EB && | |
3535 | !(IXGBE_READ_REG(hw, IXGBE_LINKS) & IXGBE_LINKS_UP)) | |
3536 | return; | |
3537 | ||
3538 | do { | |
032b4325 | 3539 | usleep_range(1000, 2000); |
9e10e045 AD |
3540 | rxdctl = IXGBE_READ_REG(hw, IXGBE_RXDCTL(reg_idx)); |
3541 | } while (--wait_loop && !(rxdctl & IXGBE_RXDCTL_ENABLE)); | |
3542 | ||
3543 | if (!wait_loop) { | |
3544 | e_err(drv, "RXDCTL.ENABLE on Rx queue %d not set within " | |
3545 | "the polling period\n", reg_idx); | |
3546 | } | |
3547 | } | |
3548 | ||
2d39d576 YZ |
3549 | void ixgbe_disable_rx_queue(struct ixgbe_adapter *adapter, |
3550 | struct ixgbe_ring *ring) | |
3551 | { | |
3552 | struct ixgbe_hw *hw = &adapter->hw; | |
3553 | int wait_loop = IXGBE_MAX_RX_DESC_POLL; | |
3554 | u32 rxdctl; | |
3555 | u8 reg_idx = ring->reg_idx; | |
3556 | ||
b0483c8f MR |
3557 | if (ixgbe_removed(hw->hw_addr)) |
3558 | return; | |
2d39d576 YZ |
3559 | rxdctl = IXGBE_READ_REG(hw, IXGBE_RXDCTL(reg_idx)); |
3560 | rxdctl &= ~IXGBE_RXDCTL_ENABLE; | |
3561 | ||
3562 | /* write value back with RXDCTL.ENABLE bit cleared */ | |
3563 | IXGBE_WRITE_REG(hw, IXGBE_RXDCTL(reg_idx), rxdctl); | |
3564 | ||
3565 | if (hw->mac.type == ixgbe_mac_82598EB && | |
3566 | !(IXGBE_READ_REG(hw, IXGBE_LINKS) & IXGBE_LINKS_UP)) | |
3567 | return; | |
3568 | ||
3569 | /* the hardware may take up to 100us to really disable the rx queue */ | |
3570 | do { | |
3571 | udelay(10); | |
3572 | rxdctl = IXGBE_READ_REG(hw, IXGBE_RXDCTL(reg_idx)); | |
3573 | } while (--wait_loop && (rxdctl & IXGBE_RXDCTL_ENABLE)); | |
3574 | ||
3575 | if (!wait_loop) { | |
3576 | e_err(drv, "RXDCTL.ENABLE on Rx queue %d not cleared within " | |
3577 | "the polling period\n", reg_idx); | |
3578 | } | |
3579 | } | |
3580 | ||
84418e3b AD |
3581 | void ixgbe_configure_rx_ring(struct ixgbe_adapter *adapter, |
3582 | struct ixgbe_ring *ring) | |
acd37177 AD |
3583 | { |
3584 | struct ixgbe_hw *hw = &adapter->hw; | |
3585 | u64 rdba = ring->dma; | |
9e10e045 | 3586 | u32 rxdctl; |
bf29ee6c | 3587 | u8 reg_idx = ring->reg_idx; |
acd37177 | 3588 | |
9e10e045 AD |
3589 | /* disable queue to avoid issues while updating state */ |
3590 | rxdctl = IXGBE_READ_REG(hw, IXGBE_RXDCTL(reg_idx)); | |
2d39d576 | 3591 | ixgbe_disable_rx_queue(adapter, ring); |
9e10e045 | 3592 | |
acd37177 AD |
3593 | IXGBE_WRITE_REG(hw, IXGBE_RDBAL(reg_idx), (rdba & DMA_BIT_MASK(32))); |
3594 | IXGBE_WRITE_REG(hw, IXGBE_RDBAH(reg_idx), (rdba >> 32)); | |
3595 | IXGBE_WRITE_REG(hw, IXGBE_RDLEN(reg_idx), | |
3596 | ring->count * sizeof(union ixgbe_adv_rx_desc)); | |
3597 | IXGBE_WRITE_REG(hw, IXGBE_RDH(reg_idx), 0); | |
3598 | IXGBE_WRITE_REG(hw, IXGBE_RDT(reg_idx), 0); | |
2a1a091c | 3599 | ring->tail = adapter->io_addr + IXGBE_RDT(reg_idx); |
9e10e045 AD |
3600 | |
3601 | ixgbe_configure_srrctl(adapter, ring); | |
3602 | ixgbe_configure_rscctl(adapter, ring); | |
3603 | ||
3604 | if (hw->mac.type == ixgbe_mac_82598EB) { | |
3605 | /* | |
3606 | * enable cache line friendly hardware writes: | |
3607 | * PTHRESH=32 descriptors (half the internal cache), | |
3608 | * this also removes ugly rx_no_buffer_count increment | |
3609 | * HTHRESH=4 descriptors (to minimize latency on fetch) | |
3610 | * WTHRESH=8 burst writeback up to two cache lines | |
3611 | */ | |
3612 | rxdctl &= ~0x3FFFFF; | |
3613 | rxdctl |= 0x080420; | |
3614 | } | |
3615 | ||
3616 | /* enable receive descriptor ring */ | |
3617 | rxdctl |= IXGBE_RXDCTL_ENABLE; | |
3618 | IXGBE_WRITE_REG(hw, IXGBE_RXDCTL(reg_idx), rxdctl); | |
3619 | ||
3620 | ixgbe_rx_desc_queue_enable(adapter, ring); | |
7d4987de | 3621 | ixgbe_alloc_rx_buffers(ring, ixgbe_desc_unused(ring)); |
acd37177 AD |
3622 | } |
3623 | ||
48654521 AD |
3624 | static void ixgbe_setup_psrtype(struct ixgbe_adapter *adapter) |
3625 | { | |
3626 | struct ixgbe_hw *hw = &adapter->hw; | |
fbe7ca7f | 3627 | int rss_i = adapter->ring_feature[RING_F_RSS].indices; |
2a47fa45 | 3628 | u16 pool; |
48654521 AD |
3629 | |
3630 | /* PSRTYPE must be initialized in non 82598 adapters */ | |
3631 | u32 psrtype = IXGBE_PSRTYPE_TCPHDR | | |
e8e9f696 JP |
3632 | IXGBE_PSRTYPE_UDPHDR | |
3633 | IXGBE_PSRTYPE_IPV4HDR | | |
48654521 | 3634 | IXGBE_PSRTYPE_L2HDR | |
e8e9f696 | 3635 | IXGBE_PSRTYPE_IPV6HDR; |
48654521 AD |
3636 | |
3637 | if (hw->mac.type == ixgbe_mac_82598EB) | |
3638 | return; | |
3639 | ||
fbe7ca7f AD |
3640 | if (rss_i > 3) |
3641 | psrtype |= 2 << 29; | |
3642 | else if (rss_i > 1) | |
3643 | psrtype |= 1 << 29; | |
48654521 | 3644 | |
2a47fa45 JF |
3645 | for_each_set_bit(pool, &adapter->fwd_bitmask, 32) |
3646 | IXGBE_WRITE_REG(hw, IXGBE_PSRTYPE(VMDQ_P(pool)), psrtype); | |
48654521 AD |
3647 | } |
3648 | ||
f5b4a52e AD |
3649 | static void ixgbe_configure_virtualization(struct ixgbe_adapter *adapter) |
3650 | { | |
3651 | struct ixgbe_hw *hw = &adapter->hw; | |
f5b4a52e | 3652 | u32 reg_offset, vf_shift; |
435b19f6 | 3653 | u32 gcr_ext, vmdctl; |
de4c7f65 | 3654 | int i; |
f5b4a52e AD |
3655 | |
3656 | if (!(adapter->flags & IXGBE_FLAG_SRIOV_ENABLED)) | |
3657 | return; | |
3658 | ||
3659 | vmdctl = IXGBE_READ_REG(hw, IXGBE_VT_CTL); | |
435b19f6 AD |
3660 | vmdctl |= IXGBE_VMD_CTL_VMDQ_EN; |
3661 | vmdctl &= ~IXGBE_VT_CTL_POOL_MASK; | |
1d9c0bfd | 3662 | vmdctl |= VMDQ_P(0) << IXGBE_VT_CTL_POOL_SHIFT; |
435b19f6 AD |
3663 | vmdctl |= IXGBE_VT_CTL_REPLEN; |
3664 | IXGBE_WRITE_REG(hw, IXGBE_VT_CTL, vmdctl); | |
f5b4a52e | 3665 | |
1d9c0bfd AD |
3666 | vf_shift = VMDQ_P(0) % 32; |
3667 | reg_offset = (VMDQ_P(0) >= 32) ? 1 : 0; | |
f5b4a52e AD |
3668 | |
3669 | /* Enable only the PF's pool for Tx/Rx */ | |
435b19f6 AD |
3670 | IXGBE_WRITE_REG(hw, IXGBE_VFRE(reg_offset), (~0) << vf_shift); |
3671 | IXGBE_WRITE_REG(hw, IXGBE_VFRE(reg_offset ^ 1), reg_offset - 1); | |
3672 | IXGBE_WRITE_REG(hw, IXGBE_VFTE(reg_offset), (~0) << vf_shift); | |
3673 | IXGBE_WRITE_REG(hw, IXGBE_VFTE(reg_offset ^ 1), reg_offset - 1); | |
aa2bacb6 | 3674 | if (adapter->bridge_mode == BRIDGE_MODE_VEB) |
9b735984 | 3675 | IXGBE_WRITE_REG(hw, IXGBE_PFDTXGSWC, IXGBE_PFDTXGSWC_VT_LBEN); |
f5b4a52e AD |
3676 | |
3677 | /* Map PF MAC address in RAR Entry 0 to first pool following VFs */ | |
1d9c0bfd | 3678 | hw->mac.ops.set_vmdq(hw, 0, VMDQ_P(0)); |
f5b4a52e AD |
3679 | |
3680 | /* | |
3681 | * Set up VF register offsets for selected VT Mode, | |
3682 | * i.e. 32 or 64 VFs for SR-IOV | |
3683 | */ | |
73079ea0 AD |
3684 | switch (adapter->ring_feature[RING_F_VMDQ].mask) { |
3685 | case IXGBE_82599_VMDQ_8Q_MASK: | |
3686 | gcr_ext = IXGBE_GCR_EXT_VT_MODE_16; | |
3687 | break; | |
3688 | case IXGBE_82599_VMDQ_4Q_MASK: | |
3689 | gcr_ext = IXGBE_GCR_EXT_VT_MODE_32; | |
3690 | break; | |
3691 | default: | |
3692 | gcr_ext = IXGBE_GCR_EXT_VT_MODE_64; | |
3693 | break; | |
3694 | } | |
3695 | ||
f5b4a52e AD |
3696 | IXGBE_WRITE_REG(hw, IXGBE_GCR_EXT, gcr_ext); |
3697 | ||
435b19f6 | 3698 | |
a985b6c3 | 3699 | /* Enable MAC Anti-Spoofing */ |
435b19f6 | 3700 | hw->mac.ops.set_mac_anti_spoofing(hw, (adapter->num_vfs != 0), |
a985b6c3 | 3701 | adapter->num_vfs); |
5b7f000f DS |
3702 | |
3703 | /* Ensure LLDP is set for Ethertype Antispoofing if we will be | |
3704 | * calling set_ethertype_anti_spoofing for each VF in loop below | |
3705 | */ | |
3706 | if (hw->mac.ops.set_ethertype_anti_spoofing) | |
3707 | IXGBE_WRITE_REG(hw, IXGBE_ETQF(IXGBE_ETQF_FILTER_LLDP), | |
3708 | (IXGBE_ETQF_FILTER_EN | /* enable filter */ | |
3709 | IXGBE_ETQF_TX_ANTISPOOF | /* tx antispoof */ | |
3710 | IXGBE_ETH_P_LLDP)); /* LLDP eth type */ | |
3711 | ||
de4c7f65 GR |
3712 | /* For VFs that have spoof checking turned off */ |
3713 | for (i = 0; i < adapter->num_vfs; i++) { | |
3714 | if (!adapter->vfinfo[i].spoofchk_enabled) | |
3715 | ixgbe_ndo_set_vf_spoofchk(adapter->netdev, i, false); | |
5b7f000f DS |
3716 | |
3717 | /* enable ethertype anti spoofing if hw supports it */ | |
3718 | if (hw->mac.ops.set_ethertype_anti_spoofing) | |
3719 | hw->mac.ops.set_ethertype_anti_spoofing(hw, true, i); | |
e65ce0d3 VZ |
3720 | |
3721 | /* Enable/Disable RSS query feature */ | |
3722 | ixgbe_ndo_set_vf_rss_query_en(adapter->netdev, i, | |
3723 | adapter->vfinfo[i].rss_query_enabled); | |
de4c7f65 | 3724 | } |
f5b4a52e AD |
3725 | } |
3726 | ||
477de6ed | 3727 | static void ixgbe_set_rx_buffer_len(struct ixgbe_adapter *adapter) |
9a799d71 | 3728 | { |
9a799d71 AK |
3729 | struct ixgbe_hw *hw = &adapter->hw; |
3730 | struct net_device *netdev = adapter->netdev; | |
3731 | int max_frame = netdev->mtu + ETH_HLEN + ETH_FCS_LEN; | |
477de6ed AD |
3732 | struct ixgbe_ring *rx_ring; |
3733 | int i; | |
3734 | u32 mhadd, hlreg0; | |
48654521 | 3735 | |
63f39bd1 | 3736 | #ifdef IXGBE_FCOE |
477de6ed AD |
3737 | /* adjust max frame to be able to do baby jumbo for FCoE */ |
3738 | if ((adapter->flags & IXGBE_FLAG_FCOE_ENABLED) && | |
3739 | (max_frame < IXGBE_FCOE_JUMBO_FRAME_SIZE)) | |
3740 | max_frame = IXGBE_FCOE_JUMBO_FRAME_SIZE; | |
9a799d71 | 3741 | |
477de6ed | 3742 | #endif /* IXGBE_FCOE */ |
872844dd AD |
3743 | |
3744 | /* adjust max frame to be at least the size of a standard frame */ | |
3745 | if (max_frame < (ETH_FRAME_LEN + ETH_FCS_LEN)) | |
3746 | max_frame = (ETH_FRAME_LEN + ETH_FCS_LEN); | |
3747 | ||
477de6ed AD |
3748 | mhadd = IXGBE_READ_REG(hw, IXGBE_MHADD); |
3749 | if (max_frame != (mhadd >> IXGBE_MHADD_MFS_SHIFT)) { | |
3750 | mhadd &= ~IXGBE_MHADD_MFS_MASK; | |
3751 | mhadd |= max_frame << IXGBE_MHADD_MFS_SHIFT; | |
3752 | ||
3753 | IXGBE_WRITE_REG(hw, IXGBE_MHADD, mhadd); | |
3754 | } | |
3755 | ||
3756 | hlreg0 = IXGBE_READ_REG(hw, IXGBE_HLREG0); | |
3757 | /* set jumbo enable since MHADD.MFS is keeping size locked at max_frame */ | |
3758 | hlreg0 |= IXGBE_HLREG0_JUMBOEN; | |
3759 | IXGBE_WRITE_REG(hw, IXGBE_HLREG0, hlreg0); | |
9a799d71 | 3760 | |
0cefafad JB |
3761 | /* |
3762 | * Setup the HW Rx Head and Tail Descriptor Pointers and | |
3763 | * the Base and Length of the Rx Descriptor Ring | |
3764 | */ | |
9a799d71 | 3765 | for (i = 0; i < adapter->num_rx_queues; i++) { |
4a0b9ca0 | 3766 | rx_ring = adapter->rx_ring[i]; |
7d637bcc AD |
3767 | if (adapter->flags2 & IXGBE_FLAG2_RSC_ENABLED) |
3768 | set_ring_rsc_enabled(rx_ring); | |
1b3ff02e | 3769 | else |
7d637bcc | 3770 | clear_ring_rsc_enabled(rx_ring); |
477de6ed | 3771 | } |
477de6ed AD |
3772 | } |
3773 | ||
7367096a AD |
3774 | static void ixgbe_setup_rdrxctl(struct ixgbe_adapter *adapter) |
3775 | { | |
3776 | struct ixgbe_hw *hw = &adapter->hw; | |
3777 | u32 rdrxctl = IXGBE_READ_REG(hw, IXGBE_RDRXCTL); | |
3778 | ||
3779 | switch (hw->mac.type) { | |
9a75a1ac DS |
3780 | case ixgbe_mac_X550: |
3781 | case ixgbe_mac_X550EM_x: | |
7367096a AD |
3782 | case ixgbe_mac_82598EB: |
3783 | /* | |
3784 | * For VMDq support of different descriptor types or | |
3785 | * buffer sizes through the use of multiple SRRCTL | |
3786 | * registers, RDRXCTL.MVMEN must be set to 1 | |
3787 | * | |
3788 | * also, the manual doesn't mention it clearly but DCA hints | |
3789 | * will only use queue 0's tags unless this bit is set. Side | |
3790 | * effects of setting this bit are only that SRRCTL must be | |
3791 | * fully programmed [0..15] | |
3792 | */ | |
3793 | rdrxctl |= IXGBE_RDRXCTL_MVMEN; | |
3794 | break; | |
3795 | case ixgbe_mac_82599EB: | |
b93a2226 | 3796 | case ixgbe_mac_X540: |
7367096a AD |
3797 | /* Disable RSC for ACK packets */ |
3798 | IXGBE_WRITE_REG(hw, IXGBE_RSCDBU, | |
3799 | (IXGBE_RSCDBU_RSCACKDIS | IXGBE_READ_REG(hw, IXGBE_RSCDBU))); | |
3800 | rdrxctl &= ~IXGBE_RDRXCTL_RSCFRSTSIZE; | |
3801 | /* hardware requires some bits to be set by default */ | |
3802 | rdrxctl |= (IXGBE_RDRXCTL_RSCACKC | IXGBE_RDRXCTL_FCOE_WRFIX); | |
3803 | rdrxctl |= IXGBE_RDRXCTL_CRCSTRIP; | |
3804 | break; | |
3805 | default: | |
3806 | /* We should do nothing since we don't know this hardware */ | |
3807 | return; | |
3808 | } | |
3809 | ||
3810 | IXGBE_WRITE_REG(hw, IXGBE_RDRXCTL, rdrxctl); | |
3811 | } | |
3812 | ||
477de6ed AD |
3813 | /** |
3814 | * ixgbe_configure_rx - Configure 8259x Receive Unit after Reset | |
3815 | * @adapter: board private structure | |
3816 | * | |
3817 | * Configure the Rx unit of the MAC after a reset. | |
3818 | **/ | |
3819 | static void ixgbe_configure_rx(struct ixgbe_adapter *adapter) | |
3820 | { | |
3821 | struct ixgbe_hw *hw = &adapter->hw; | |
477de6ed | 3822 | int i; |
6dcc28b9 | 3823 | u32 rxctrl, rfctl; |
477de6ed AD |
3824 | |
3825 | /* disable receives while setting up the descriptors */ | |
1f9ac57c | 3826 | hw->mac.ops.disable_rx(hw); |
477de6ed AD |
3827 | |
3828 | ixgbe_setup_psrtype(adapter); | |
7367096a | 3829 | ixgbe_setup_rdrxctl(adapter); |
477de6ed | 3830 | |
6dcc28b9 JK |
3831 | /* RSC Setup */ |
3832 | rfctl = IXGBE_READ_REG(hw, IXGBE_RFCTL); | |
3833 | rfctl &= ~IXGBE_RFCTL_RSC_DIS; | |
3834 | if (!(adapter->flags2 & IXGBE_FLAG2_RSC_ENABLED)) | |
3835 | rfctl |= IXGBE_RFCTL_RSC_DIS; | |
3836 | IXGBE_WRITE_REG(hw, IXGBE_RFCTL, rfctl); | |
3837 | ||
9e10e045 | 3838 | /* Program registers for the distribution of queues */ |
f5b4a52e | 3839 | ixgbe_setup_mrqc(adapter); |
f5b4a52e | 3840 | |
477de6ed AD |
3841 | /* set_rx_buffer_len must be called before ring initialization */ |
3842 | ixgbe_set_rx_buffer_len(adapter); | |
3843 | ||
3844 | /* | |
3845 | * Setup the HW Rx Head and Tail Descriptor Pointers and | |
3846 | * the Base and Length of the Rx Descriptor Ring | |
3847 | */ | |
9e10e045 AD |
3848 | for (i = 0; i < adapter->num_rx_queues; i++) |
3849 | ixgbe_configure_rx_ring(adapter, adapter->rx_ring[i]); | |
177db6ff | 3850 | |
1f9ac57c | 3851 | rxctrl = IXGBE_READ_REG(hw, IXGBE_RXCTRL); |
9e10e045 AD |
3852 | /* disable drop enable for 82598 parts */ |
3853 | if (hw->mac.type == ixgbe_mac_82598EB) | |
3854 | rxctrl |= IXGBE_RXCTRL_DMBYPS; | |
3855 | ||
3856 | /* enable all receives */ | |
3857 | rxctrl |= IXGBE_RXCTRL_RXEN; | |
3858 | hw->mac.ops.enable_rx_dma(hw, rxctrl); | |
9a799d71 AK |
3859 | } |
3860 | ||
80d5c368 PM |
3861 | static int ixgbe_vlan_rx_add_vid(struct net_device *netdev, |
3862 | __be16 proto, u16 vid) | |
068c89b0 DS |
3863 | { |
3864 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
3865 | struct ixgbe_hw *hw = &adapter->hw; | |
3866 | ||
3867 | /* add VID to filter table */ | |
1d9c0bfd | 3868 | hw->mac.ops.set_vfta(&adapter->hw, vid, VMDQ_P(0), true); |
f62bbb5e | 3869 | set_bit(vid, adapter->active_vlans); |
8e586137 JP |
3870 | |
3871 | return 0; | |
068c89b0 DS |
3872 | } |
3873 | ||
80d5c368 PM |
3874 | static int ixgbe_vlan_rx_kill_vid(struct net_device *netdev, |
3875 | __be16 proto, u16 vid) | |
068c89b0 DS |
3876 | { |
3877 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
3878 | struct ixgbe_hw *hw = &adapter->hw; | |
3879 | ||
068c89b0 | 3880 | /* remove VID from filter table */ |
1d9c0bfd | 3881 | hw->mac.ops.set_vfta(&adapter->hw, vid, VMDQ_P(0), false); |
f62bbb5e | 3882 | clear_bit(vid, adapter->active_vlans); |
8e586137 JP |
3883 | |
3884 | return 0; | |
068c89b0 DS |
3885 | } |
3886 | ||
f62bbb5e JG |
3887 | /** |
3888 | * ixgbe_vlan_strip_disable - helper to disable hw vlan stripping | |
3889 | * @adapter: driver data | |
3890 | */ | |
3891 | static void ixgbe_vlan_strip_disable(struct ixgbe_adapter *adapter) | |
3892 | { | |
3893 | struct ixgbe_hw *hw = &adapter->hw; | |
3894 | u32 vlnctrl; | |
5f6c0181 JB |
3895 | int i, j; |
3896 | ||
3897 | switch (hw->mac.type) { | |
3898 | case ixgbe_mac_82598EB: | |
f62bbb5e JG |
3899 | vlnctrl = IXGBE_READ_REG(hw, IXGBE_VLNCTRL); |
3900 | vlnctrl &= ~IXGBE_VLNCTRL_VME; | |
5f6c0181 JB |
3901 | IXGBE_WRITE_REG(hw, IXGBE_VLNCTRL, vlnctrl); |
3902 | break; | |
3903 | case ixgbe_mac_82599EB: | |
b93a2226 | 3904 | case ixgbe_mac_X540: |
9a75a1ac DS |
3905 | case ixgbe_mac_X550: |
3906 | case ixgbe_mac_X550EM_x: | |
5f6c0181 | 3907 | for (i = 0; i < adapter->num_rx_queues; i++) { |
2a47fa45 JF |
3908 | struct ixgbe_ring *ring = adapter->rx_ring[i]; |
3909 | ||
3910 | if (ring->l2_accel_priv) | |
3911 | continue; | |
3912 | j = ring->reg_idx; | |
5f6c0181 JB |
3913 | vlnctrl = IXGBE_READ_REG(hw, IXGBE_RXDCTL(j)); |
3914 | vlnctrl &= ~IXGBE_RXDCTL_VME; | |
3915 | IXGBE_WRITE_REG(hw, IXGBE_RXDCTL(j), vlnctrl); | |
3916 | } | |
3917 | break; | |
3918 | default: | |
3919 | break; | |
3920 | } | |
3921 | } | |
3922 | ||
3923 | /** | |
f62bbb5e | 3924 | * ixgbe_vlan_strip_enable - helper to enable hw vlan stripping |
5f6c0181 JB |
3925 | * @adapter: driver data |
3926 | */ | |
f62bbb5e | 3927 | static void ixgbe_vlan_strip_enable(struct ixgbe_adapter *adapter) |
5f6c0181 JB |
3928 | { |
3929 | struct ixgbe_hw *hw = &adapter->hw; | |
f62bbb5e | 3930 | u32 vlnctrl; |
5f6c0181 JB |
3931 | int i, j; |
3932 | ||
3933 | switch (hw->mac.type) { | |
3934 | case ixgbe_mac_82598EB: | |
f62bbb5e JG |
3935 | vlnctrl = IXGBE_READ_REG(hw, IXGBE_VLNCTRL); |
3936 | vlnctrl |= IXGBE_VLNCTRL_VME; | |
5f6c0181 JB |
3937 | IXGBE_WRITE_REG(hw, IXGBE_VLNCTRL, vlnctrl); |
3938 | break; | |
3939 | case ixgbe_mac_82599EB: | |
b93a2226 | 3940 | case ixgbe_mac_X540: |
9a75a1ac DS |
3941 | case ixgbe_mac_X550: |
3942 | case ixgbe_mac_X550EM_x: | |
5f6c0181 | 3943 | for (i = 0; i < adapter->num_rx_queues; i++) { |
2a47fa45 JF |
3944 | struct ixgbe_ring *ring = adapter->rx_ring[i]; |
3945 | ||
3946 | if (ring->l2_accel_priv) | |
3947 | continue; | |
3948 | j = ring->reg_idx; | |
5f6c0181 JB |
3949 | vlnctrl = IXGBE_READ_REG(hw, IXGBE_RXDCTL(j)); |
3950 | vlnctrl |= IXGBE_RXDCTL_VME; | |
3951 | IXGBE_WRITE_REG(hw, IXGBE_RXDCTL(j), vlnctrl); | |
3952 | } | |
3953 | break; | |
3954 | default: | |
3955 | break; | |
3956 | } | |
3957 | } | |
3958 | ||
9a799d71 AK |
3959 | static void ixgbe_restore_vlan(struct ixgbe_adapter *adapter) |
3960 | { | |
f62bbb5e | 3961 | u16 vid; |
9a799d71 | 3962 | |
80d5c368 | 3963 | ixgbe_vlan_rx_add_vid(adapter->netdev, htons(ETH_P_8021Q), 0); |
f62bbb5e JG |
3964 | |
3965 | for_each_set_bit(vid, adapter->active_vlans, VLAN_N_VID) | |
80d5c368 | 3966 | ixgbe_vlan_rx_add_vid(adapter->netdev, htons(ETH_P_8021Q), vid); |
9a799d71 AK |
3967 | } |
3968 | ||
b335e75b JK |
3969 | /** |
3970 | * ixgbe_write_mc_addr_list - write multicast addresses to MTA | |
3971 | * @netdev: network interface device structure | |
3972 | * | |
3973 | * Writes multicast address list to the MTA hash table. | |
3974 | * Returns: -ENOMEM on failure | |
3975 | * 0 on no addresses written | |
3976 | * X on writing X addresses to MTA | |
3977 | **/ | |
3978 | static int ixgbe_write_mc_addr_list(struct net_device *netdev) | |
3979 | { | |
3980 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
3981 | struct ixgbe_hw *hw = &adapter->hw; | |
3982 | ||
3983 | if (!netif_running(netdev)) | |
3984 | return 0; | |
3985 | ||
3986 | if (hw->mac.ops.update_mc_addr_list) | |
3987 | hw->mac.ops.update_mc_addr_list(hw, netdev); | |
3988 | else | |
3989 | return -ENOMEM; | |
3990 | ||
3991 | #ifdef CONFIG_PCI_IOV | |
5d7daa35 | 3992 | ixgbe_restore_vf_multicasts(adapter); |
b335e75b JK |
3993 | #endif |
3994 | ||
3995 | return netdev_mc_count(netdev); | |
3996 | } | |
3997 | ||
5d7daa35 JK |
3998 | #ifdef CONFIG_PCI_IOV |
3999 | void ixgbe_full_sync_mac_table(struct ixgbe_adapter *adapter) | |
4000 | { | |
4001 | struct ixgbe_hw *hw = &adapter->hw; | |
4002 | int i; | |
4003 | for (i = 0; i < hw->mac.num_rar_entries; i++) { | |
4004 | if (adapter->mac_table[i].state & IXGBE_MAC_STATE_IN_USE) | |
4005 | hw->mac.ops.set_rar(hw, i, adapter->mac_table[i].addr, | |
4006 | adapter->mac_table[i].queue, | |
4007 | IXGBE_RAH_AV); | |
4008 | else | |
4009 | hw->mac.ops.clear_rar(hw, i); | |
4010 | ||
4011 | adapter->mac_table[i].state &= ~(IXGBE_MAC_STATE_MODIFIED); | |
4012 | } | |
4013 | } | |
4014 | #endif | |
4015 | ||
4016 | static void ixgbe_sync_mac_table(struct ixgbe_adapter *adapter) | |
4017 | { | |
4018 | struct ixgbe_hw *hw = &adapter->hw; | |
4019 | int i; | |
4020 | for (i = 0; i < hw->mac.num_rar_entries; i++) { | |
4021 | if (adapter->mac_table[i].state & IXGBE_MAC_STATE_MODIFIED) { | |
4022 | if (adapter->mac_table[i].state & | |
4023 | IXGBE_MAC_STATE_IN_USE) | |
4024 | hw->mac.ops.set_rar(hw, i, | |
4025 | adapter->mac_table[i].addr, | |
4026 | adapter->mac_table[i].queue, | |
4027 | IXGBE_RAH_AV); | |
4028 | else | |
4029 | hw->mac.ops.clear_rar(hw, i); | |
4030 | ||
4031 | adapter->mac_table[i].state &= | |
4032 | ~(IXGBE_MAC_STATE_MODIFIED); | |
4033 | } | |
4034 | } | |
4035 | } | |
4036 | ||
4037 | static void ixgbe_flush_sw_mac_table(struct ixgbe_adapter *adapter) | |
4038 | { | |
4039 | int i; | |
4040 | struct ixgbe_hw *hw = &adapter->hw; | |
4041 | ||
4042 | for (i = 0; i < hw->mac.num_rar_entries; i++) { | |
4043 | adapter->mac_table[i].state |= IXGBE_MAC_STATE_MODIFIED; | |
4044 | adapter->mac_table[i].state &= ~IXGBE_MAC_STATE_IN_USE; | |
c7bf7169 | 4045 | eth_zero_addr(adapter->mac_table[i].addr); |
5d7daa35 JK |
4046 | adapter->mac_table[i].queue = 0; |
4047 | } | |
4048 | ixgbe_sync_mac_table(adapter); | |
4049 | } | |
4050 | ||
4051 | static int ixgbe_available_rars(struct ixgbe_adapter *adapter) | |
4052 | { | |
4053 | struct ixgbe_hw *hw = &adapter->hw; | |
4054 | int i, count = 0; | |
4055 | ||
4056 | for (i = 0; i < hw->mac.num_rar_entries; i++) { | |
4057 | if (adapter->mac_table[i].state == 0) | |
4058 | count++; | |
4059 | } | |
4060 | return count; | |
4061 | } | |
4062 | ||
4063 | /* this function destroys the first RAR entry */ | |
4064 | static void ixgbe_mac_set_default_filter(struct ixgbe_adapter *adapter, | |
4065 | u8 *addr) | |
4066 | { | |
4067 | struct ixgbe_hw *hw = &adapter->hw; | |
4068 | ||
4069 | memcpy(&adapter->mac_table[0].addr, addr, ETH_ALEN); | |
4070 | adapter->mac_table[0].queue = VMDQ_P(0); | |
4071 | adapter->mac_table[0].state = (IXGBE_MAC_STATE_DEFAULT | | |
4072 | IXGBE_MAC_STATE_IN_USE); | |
4073 | hw->mac.ops.set_rar(hw, 0, adapter->mac_table[0].addr, | |
4074 | adapter->mac_table[0].queue, | |
4075 | IXGBE_RAH_AV); | |
4076 | } | |
4077 | ||
4078 | int ixgbe_add_mac_filter(struct ixgbe_adapter *adapter, u8 *addr, u16 queue) | |
4079 | { | |
4080 | struct ixgbe_hw *hw = &adapter->hw; | |
4081 | int i; | |
4082 | ||
4083 | if (is_zero_ether_addr(addr)) | |
4084 | return -EINVAL; | |
4085 | ||
4086 | for (i = 0; i < hw->mac.num_rar_entries; i++) { | |
4087 | if (adapter->mac_table[i].state & IXGBE_MAC_STATE_IN_USE) | |
4088 | continue; | |
4089 | adapter->mac_table[i].state |= (IXGBE_MAC_STATE_MODIFIED | | |
4090 | IXGBE_MAC_STATE_IN_USE); | |
4091 | ether_addr_copy(adapter->mac_table[i].addr, addr); | |
4092 | adapter->mac_table[i].queue = queue; | |
4093 | ixgbe_sync_mac_table(adapter); | |
4094 | return i; | |
4095 | } | |
4096 | return -ENOMEM; | |
4097 | } | |
4098 | ||
4099 | int ixgbe_del_mac_filter(struct ixgbe_adapter *adapter, u8 *addr, u16 queue) | |
4100 | { | |
4101 | /* search table for addr, if found, set to 0 and sync */ | |
4102 | int i; | |
4103 | struct ixgbe_hw *hw = &adapter->hw; | |
4104 | ||
4105 | if (is_zero_ether_addr(addr)) | |
4106 | return -EINVAL; | |
4107 | ||
4108 | for (i = 0; i < hw->mac.num_rar_entries; i++) { | |
4109 | if (ether_addr_equal(addr, adapter->mac_table[i].addr) && | |
4110 | adapter->mac_table[i].queue == queue) { | |
4111 | adapter->mac_table[i].state |= IXGBE_MAC_STATE_MODIFIED; | |
4112 | adapter->mac_table[i].state &= ~IXGBE_MAC_STATE_IN_USE; | |
c7bf7169 | 4113 | eth_zero_addr(adapter->mac_table[i].addr); |
5d7daa35 JK |
4114 | adapter->mac_table[i].queue = 0; |
4115 | ixgbe_sync_mac_table(adapter); | |
4116 | return 0; | |
4117 | } | |
4118 | } | |
4119 | return -ENOMEM; | |
4120 | } | |
2850062a AD |
4121 | /** |
4122 | * ixgbe_write_uc_addr_list - write unicast addresses to RAR table | |
4123 | * @netdev: network interface device structure | |
4124 | * | |
4125 | * Writes unicast address list to the RAR table. | |
4126 | * Returns: -ENOMEM on failure/insufficient address space | |
4127 | * 0 on no addresses written | |
4128 | * X on writing X addresses to the RAR table | |
4129 | **/ | |
5d7daa35 | 4130 | static int ixgbe_write_uc_addr_list(struct net_device *netdev, int vfn) |
2850062a AD |
4131 | { |
4132 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
2850062a AD |
4133 | int count = 0; |
4134 | ||
4135 | /* return ENOMEM indicating insufficient memory for addresses */ | |
5d7daa35 | 4136 | if (netdev_uc_count(netdev) > ixgbe_available_rars(adapter)) |
2850062a AD |
4137 | return -ENOMEM; |
4138 | ||
95447461 | 4139 | if (!netdev_uc_empty(netdev)) { |
2850062a | 4140 | struct netdev_hw_addr *ha; |
2850062a | 4141 | netdev_for_each_uc_addr(ha, netdev) { |
5d7daa35 JK |
4142 | ixgbe_del_mac_filter(adapter, ha->addr, vfn); |
4143 | ixgbe_add_mac_filter(adapter, ha->addr, vfn); | |
2850062a AD |
4144 | count++; |
4145 | } | |
4146 | } | |
2850062a AD |
4147 | return count; |
4148 | } | |
4149 | ||
9a799d71 | 4150 | /** |
2c5645cf | 4151 | * ixgbe_set_rx_mode - Unicast, Multicast and Promiscuous mode set |
9a799d71 AK |
4152 | * @netdev: network interface device structure |
4153 | * | |
2c5645cf CL |
4154 | * The set_rx_method entry point is called whenever the unicast/multicast |
4155 | * address list or the network interface flags are updated. This routine is | |
4156 | * responsible for configuring the hardware for proper unicast, multicast and | |
4157 | * promiscuous mode. | |
9a799d71 | 4158 | **/ |
7f870475 | 4159 | void ixgbe_set_rx_mode(struct net_device *netdev) |
9a799d71 AK |
4160 | { |
4161 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
4162 | struct ixgbe_hw *hw = &adapter->hw; | |
2850062a | 4163 | u32 fctrl, vmolr = IXGBE_VMOLR_BAM | IXGBE_VMOLR_AUPE; |
a9b8943e | 4164 | u32 vlnctrl; |
2850062a | 4165 | int count; |
9a799d71 AK |
4166 | |
4167 | /* Check for Promiscuous and All Multicast modes */ | |
9a799d71 | 4168 | fctrl = IXGBE_READ_REG(hw, IXGBE_FCTRL); |
a9b8943e | 4169 | vlnctrl = IXGBE_READ_REG(hw, IXGBE_VLNCTRL); |
9a799d71 | 4170 | |
f5dc442b | 4171 | /* set all bits that we expect to always be set */ |
3f2d1c0f | 4172 | fctrl &= ~IXGBE_FCTRL_SBP; /* disable store-bad-packets */ |
f5dc442b AD |
4173 | fctrl |= IXGBE_FCTRL_BAM; |
4174 | fctrl |= IXGBE_FCTRL_DPF; /* discard pause frames when FC enabled */ | |
4175 | fctrl |= IXGBE_FCTRL_PMCF; | |
4176 | ||
2850062a AD |
4177 | /* clear the bits we are changing the status of */ |
4178 | fctrl &= ~(IXGBE_FCTRL_UPE | IXGBE_FCTRL_MPE); | |
a9b8943e | 4179 | vlnctrl &= ~(IXGBE_VLNCTRL_VFE | IXGBE_VLNCTRL_CFIEN); |
9a799d71 | 4180 | if (netdev->flags & IFF_PROMISC) { |
e433ea1f | 4181 | hw->addr_ctrl.user_set_promisc = true; |
9a799d71 | 4182 | fctrl |= (IXGBE_FCTRL_UPE | IXGBE_FCTRL_MPE); |
b335e75b | 4183 | vmolr |= IXGBE_VMOLR_MPE; |
670224f1 GR |
4184 | /* Only disable hardware filter vlans in promiscuous mode |
4185 | * if SR-IOV and VMDQ are disabled - otherwise ensure | |
4186 | * that hardware VLAN filters remain enabled. | |
4187 | */ | |
4556dc59 VY |
4188 | if (adapter->flags & (IXGBE_FLAG_VMDQ_ENABLED | |
4189 | IXGBE_FLAG_SRIOV_ENABLED)) | |
a9b8943e | 4190 | vlnctrl |= (IXGBE_VLNCTRL_VFE | IXGBE_VLNCTRL_CFIEN); |
9a799d71 | 4191 | } else { |
746b9f02 PM |
4192 | if (netdev->flags & IFF_ALLMULTI) { |
4193 | fctrl |= IXGBE_FCTRL_MPE; | |
2850062a | 4194 | vmolr |= IXGBE_VMOLR_MPE; |
746b9f02 | 4195 | } |
a9b8943e | 4196 | vlnctrl |= IXGBE_VLNCTRL_VFE; |
e433ea1f | 4197 | hw->addr_ctrl.user_set_promisc = false; |
9dcb373c JF |
4198 | } |
4199 | ||
4200 | /* | |
4201 | * Write addresses to available RAR registers, if there is not | |
4202 | * sufficient space to store all the addresses then enable | |
4203 | * unicast promiscuous mode | |
4204 | */ | |
5d7daa35 | 4205 | count = ixgbe_write_uc_addr_list(netdev, VMDQ_P(0)); |
9dcb373c JF |
4206 | if (count < 0) { |
4207 | fctrl |= IXGBE_FCTRL_UPE; | |
4208 | vmolr |= IXGBE_VMOLR_ROPE; | |
9a799d71 AK |
4209 | } |
4210 | ||
cf78959c ET |
4211 | /* Write addresses to the MTA, if the attempt fails |
4212 | * then we should just turn on promiscuous mode so | |
4213 | * that we can at least receive multicast traffic | |
4214 | */ | |
b335e75b JK |
4215 | count = ixgbe_write_mc_addr_list(netdev); |
4216 | if (count < 0) { | |
4217 | fctrl |= IXGBE_FCTRL_MPE; | |
4218 | vmolr |= IXGBE_VMOLR_MPE; | |
4219 | } else if (count) { | |
4220 | vmolr |= IXGBE_VMOLR_ROMPE; | |
4221 | } | |
1d9c0bfd AD |
4222 | |
4223 | if (hw->mac.type != ixgbe_mac_82598EB) { | |
4224 | vmolr |= IXGBE_READ_REG(hw, IXGBE_VMOLR(VMDQ_P(0))) & | |
2850062a AD |
4225 | ~(IXGBE_VMOLR_MPE | IXGBE_VMOLR_ROMPE | |
4226 | IXGBE_VMOLR_ROPE); | |
1d9c0bfd | 4227 | IXGBE_WRITE_REG(hw, IXGBE_VMOLR(VMDQ_P(0)), vmolr); |
2850062a AD |
4228 | } |
4229 | ||
3f2d1c0f BG |
4230 | /* This is useful for sniffing bad packets. */ |
4231 | if (adapter->netdev->features & NETIF_F_RXALL) { | |
4232 | /* UPE and MPE will be handled by normal PROMISC logic | |
4233 | * in e1000e_set_rx_mode */ | |
4234 | fctrl |= (IXGBE_FCTRL_SBP | /* Receive bad packets */ | |
4235 | IXGBE_FCTRL_BAM | /* RX All Bcast Pkts */ | |
4236 | IXGBE_FCTRL_PMCF); /* RX All MAC Ctrl Pkts */ | |
4237 | ||
4238 | fctrl &= ~(IXGBE_FCTRL_DPF); | |
4239 | /* NOTE: VLAN filtering is disabled by setting PROMISC */ | |
4240 | } | |
4241 | ||
a9b8943e | 4242 | IXGBE_WRITE_REG(hw, IXGBE_VLNCTRL, vlnctrl); |
2850062a | 4243 | IXGBE_WRITE_REG(hw, IXGBE_FCTRL, fctrl); |
f62bbb5e | 4244 | |
f646968f | 4245 | if (netdev->features & NETIF_F_HW_VLAN_CTAG_RX) |
f62bbb5e JG |
4246 | ixgbe_vlan_strip_enable(adapter); |
4247 | else | |
4248 | ixgbe_vlan_strip_disable(adapter); | |
9a799d71 AK |
4249 | } |
4250 | ||
021230d4 AV |
4251 | static void ixgbe_napi_enable_all(struct ixgbe_adapter *adapter) |
4252 | { | |
4253 | int q_idx; | |
021230d4 | 4254 | |
5a85e737 ET |
4255 | for (q_idx = 0; q_idx < adapter->num_q_vectors; q_idx++) { |
4256 | ixgbe_qv_init_lock(adapter->q_vector[q_idx]); | |
49c7ffbe | 4257 | napi_enable(&adapter->q_vector[q_idx]->napi); |
5a85e737 | 4258 | } |
021230d4 AV |
4259 | } |
4260 | ||
4261 | static void ixgbe_napi_disable_all(struct ixgbe_adapter *adapter) | |
4262 | { | |
4263 | int q_idx; | |
021230d4 | 4264 | |
5a85e737 | 4265 | for (q_idx = 0; q_idx < adapter->num_q_vectors; q_idx++) { |
49c7ffbe | 4266 | napi_disable(&adapter->q_vector[q_idx]->napi); |
27d9ce4f | 4267 | while (!ixgbe_qv_disable(adapter->q_vector[q_idx])) { |
5a85e737 | 4268 | pr_info("QV %d locked\n", q_idx); |
27d9ce4f | 4269 | usleep_range(1000, 20000); |
5a85e737 ET |
4270 | } |
4271 | } | |
021230d4 AV |
4272 | } |
4273 | ||
67359c3c MR |
4274 | static void ixgbe_clear_vxlan_port(struct ixgbe_adapter *adapter) |
4275 | { | |
4276 | switch (adapter->hw.mac.type) { | |
4277 | case ixgbe_mac_X550: | |
4278 | case ixgbe_mac_X550EM_x: | |
4279 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_VXLANCTRL, 0); | |
4280 | #ifdef CONFIG_IXGBE_VXLAN | |
4281 | adapter->vxlan_port = 0; | |
4282 | #endif | |
4283 | break; | |
4284 | default: | |
4285 | break; | |
4286 | } | |
4287 | } | |
4288 | ||
7a6b6f51 | 4289 | #ifdef CONFIG_IXGBE_DCB |
49ce9c2c | 4290 | /** |
2f90b865 AD |
4291 | * ixgbe_configure_dcb - Configure DCB hardware |
4292 | * @adapter: ixgbe adapter struct | |
4293 | * | |
4294 | * This is called by the driver on open to configure the DCB hardware. | |
4295 | * This is also called by the gennetlink interface when reconfiguring | |
4296 | * the DCB state. | |
4297 | */ | |
4298 | static void ixgbe_configure_dcb(struct ixgbe_adapter *adapter) | |
4299 | { | |
4300 | struct ixgbe_hw *hw = &adapter->hw; | |
9806307a | 4301 | int max_frame = adapter->netdev->mtu + ETH_HLEN + ETH_FCS_LEN; |
2f90b865 | 4302 | |
67ebd791 AD |
4303 | if (!(adapter->flags & IXGBE_FLAG_DCB_ENABLED)) { |
4304 | if (hw->mac.type == ixgbe_mac_82598EB) | |
4305 | netif_set_gso_max_size(adapter->netdev, 65536); | |
4306 | return; | |
4307 | } | |
4308 | ||
4309 | if (hw->mac.type == ixgbe_mac_82598EB) | |
4310 | netif_set_gso_max_size(adapter->netdev, 32768); | |
4311 | ||
971060b1 | 4312 | #ifdef IXGBE_FCOE |
b120818e JF |
4313 | if (adapter->netdev->features & NETIF_F_FCOE_MTU) |
4314 | max_frame = max(max_frame, IXGBE_FCOE_JUMBO_FRAME_SIZE); | |
c27931da | 4315 | #endif |
b120818e JF |
4316 | |
4317 | /* reconfigure the hardware */ | |
4318 | if (adapter->dcbx_cap & DCB_CAP_DCBX_VER_CEE) { | |
c27931da JF |
4319 | ixgbe_dcb_calculate_tc_credits(hw, &adapter->dcb_cfg, max_frame, |
4320 | DCB_TX_CONFIG); | |
4321 | ixgbe_dcb_calculate_tc_credits(hw, &adapter->dcb_cfg, max_frame, | |
4322 | DCB_RX_CONFIG); | |
4323 | ixgbe_dcb_hw_config(hw, &adapter->dcb_cfg); | |
b120818e JF |
4324 | } else if (adapter->ixgbe_ieee_ets && adapter->ixgbe_ieee_pfc) { |
4325 | ixgbe_dcb_hw_ets(&adapter->hw, | |
4326 | adapter->ixgbe_ieee_ets, | |
4327 | max_frame); | |
4328 | ixgbe_dcb_hw_pfc_config(&adapter->hw, | |
4329 | adapter->ixgbe_ieee_pfc->pfc_en, | |
4330 | adapter->ixgbe_ieee_ets->prio_tc); | |
c27931da | 4331 | } |
8187cd48 JF |
4332 | |
4333 | /* Enable RSS Hash per TC */ | |
4334 | if (hw->mac.type != ixgbe_mac_82598EB) { | |
4ae63730 AD |
4335 | u32 msb = 0; |
4336 | u16 rss_i = adapter->ring_feature[RING_F_RSS].indices - 1; | |
8187cd48 | 4337 | |
d411a936 AD |
4338 | while (rss_i) { |
4339 | msb++; | |
4340 | rss_i >>= 1; | |
4341 | } | |
8187cd48 | 4342 | |
4ae63730 AD |
4343 | /* write msb to all 8 TCs in one write */ |
4344 | IXGBE_WRITE_REG(hw, IXGBE_RQTC, msb * 0x11111111); | |
8187cd48 | 4345 | } |
2f90b865 | 4346 | } |
9da712d2 JF |
4347 | #endif |
4348 | ||
4349 | /* Additional bittime to account for IXGBE framing */ | |
4350 | #define IXGBE_ETH_FRAMING 20 | |
4351 | ||
49ce9c2c | 4352 | /** |
9da712d2 JF |
4353 | * ixgbe_hpbthresh - calculate high water mark for flow control |
4354 | * | |
4355 | * @adapter: board private structure to calculate for | |
49ce9c2c | 4356 | * @pb: packet buffer to calculate |
9da712d2 JF |
4357 | */ |
4358 | static int ixgbe_hpbthresh(struct ixgbe_adapter *adapter, int pb) | |
4359 | { | |
4360 | struct ixgbe_hw *hw = &adapter->hw; | |
4361 | struct net_device *dev = adapter->netdev; | |
4362 | int link, tc, kb, marker; | |
4363 | u32 dv_id, rx_pba; | |
4364 | ||
4365 | /* Calculate max LAN frame size */ | |
4366 | tc = link = dev->mtu + ETH_HLEN + ETH_FCS_LEN + IXGBE_ETH_FRAMING; | |
4367 | ||
4368 | #ifdef IXGBE_FCOE | |
4369 | /* FCoE traffic class uses FCOE jumbo frames */ | |
800bd607 AD |
4370 | if ((dev->features & NETIF_F_FCOE_MTU) && |
4371 | (tc < IXGBE_FCOE_JUMBO_FRAME_SIZE) && | |
4372 | (pb == ixgbe_fcoe_get_tc(adapter))) | |
4373 | tc = IXGBE_FCOE_JUMBO_FRAME_SIZE; | |
9da712d2 | 4374 | #endif |
e5776620 | 4375 | |
9da712d2 JF |
4376 | /* Calculate delay value for device */ |
4377 | switch (hw->mac.type) { | |
4378 | case ixgbe_mac_X540: | |
9a75a1ac DS |
4379 | case ixgbe_mac_X550: |
4380 | case ixgbe_mac_X550EM_x: | |
9da712d2 JF |
4381 | dv_id = IXGBE_DV_X540(link, tc); |
4382 | break; | |
4383 | default: | |
4384 | dv_id = IXGBE_DV(link, tc); | |
4385 | break; | |
4386 | } | |
4387 | ||
4388 | /* Loopback switch introduces additional latency */ | |
4389 | if (adapter->flags & IXGBE_FLAG_SRIOV_ENABLED) | |
4390 | dv_id += IXGBE_B2BT(tc); | |
4391 | ||
4392 | /* Delay value is calculated in bit times convert to KB */ | |
4393 | kb = IXGBE_BT2KB(dv_id); | |
4394 | rx_pba = IXGBE_READ_REG(hw, IXGBE_RXPBSIZE(pb)) >> 10; | |
4395 | ||
4396 | marker = rx_pba - kb; | |
4397 | ||
4398 | /* It is possible that the packet buffer is not large enough | |
4399 | * to provide required headroom. In this case throw an error | |
4400 | * to user and a do the best we can. | |
4401 | */ | |
4402 | if (marker < 0) { | |
4403 | e_warn(drv, "Packet Buffer(%i) can not provide enough" | |
4404 | "headroom to support flow control." | |
4405 | "Decrease MTU or number of traffic classes\n", pb); | |
4406 | marker = tc + 1; | |
4407 | } | |
4408 | ||
4409 | return marker; | |
4410 | } | |
4411 | ||
49ce9c2c | 4412 | /** |
9da712d2 JF |
4413 | * ixgbe_lpbthresh - calculate low water mark for for flow control |
4414 | * | |
4415 | * @adapter: board private structure to calculate for | |
49ce9c2c | 4416 | * @pb: packet buffer to calculate |
9da712d2 | 4417 | */ |
e5776620 | 4418 | static int ixgbe_lpbthresh(struct ixgbe_adapter *adapter, int pb) |
9da712d2 JF |
4419 | { |
4420 | struct ixgbe_hw *hw = &adapter->hw; | |
4421 | struct net_device *dev = adapter->netdev; | |
4422 | int tc; | |
4423 | u32 dv_id; | |
4424 | ||
4425 | /* Calculate max LAN frame size */ | |
4426 | tc = dev->mtu + ETH_HLEN + ETH_FCS_LEN; | |
4427 | ||
e5776620 JK |
4428 | #ifdef IXGBE_FCOE |
4429 | /* FCoE traffic class uses FCOE jumbo frames */ | |
4430 | if ((dev->features & NETIF_F_FCOE_MTU) && | |
4431 | (tc < IXGBE_FCOE_JUMBO_FRAME_SIZE) && | |
4432 | (pb == netdev_get_prio_tc_map(dev, adapter->fcoe.up))) | |
4433 | tc = IXGBE_FCOE_JUMBO_FRAME_SIZE; | |
4434 | #endif | |
4435 | ||
9da712d2 JF |
4436 | /* Calculate delay value for device */ |
4437 | switch (hw->mac.type) { | |
4438 | case ixgbe_mac_X540: | |
9a75a1ac DS |
4439 | case ixgbe_mac_X550: |
4440 | case ixgbe_mac_X550EM_x: | |
9da712d2 JF |
4441 | dv_id = IXGBE_LOW_DV_X540(tc); |
4442 | break; | |
4443 | default: | |
4444 | dv_id = IXGBE_LOW_DV(tc); | |
4445 | break; | |
4446 | } | |
4447 | ||
4448 | /* Delay value is calculated in bit times convert to KB */ | |
4449 | return IXGBE_BT2KB(dv_id); | |
4450 | } | |
4451 | ||
4452 | /* | |
4453 | * ixgbe_pbthresh_setup - calculate and setup high low water marks | |
4454 | */ | |
4455 | static void ixgbe_pbthresh_setup(struct ixgbe_adapter *adapter) | |
4456 | { | |
4457 | struct ixgbe_hw *hw = &adapter->hw; | |
4458 | int num_tc = netdev_get_num_tc(adapter->netdev); | |
4459 | int i; | |
4460 | ||
4461 | if (!num_tc) | |
4462 | num_tc = 1; | |
4463 | ||
9da712d2 JF |
4464 | for (i = 0; i < num_tc; i++) { |
4465 | hw->fc.high_water[i] = ixgbe_hpbthresh(adapter, i); | |
e5776620 | 4466 | hw->fc.low_water[i] = ixgbe_lpbthresh(adapter, i); |
9da712d2 JF |
4467 | |
4468 | /* Low water marks must not be larger than high water marks */ | |
e5776620 JK |
4469 | if (hw->fc.low_water[i] > hw->fc.high_water[i]) |
4470 | hw->fc.low_water[i] = 0; | |
9da712d2 | 4471 | } |
e5776620 JK |
4472 | |
4473 | for (; i < MAX_TRAFFIC_CLASS; i++) | |
4474 | hw->fc.high_water[i] = 0; | |
9da712d2 JF |
4475 | } |
4476 | ||
80605c65 JF |
4477 | static void ixgbe_configure_pb(struct ixgbe_adapter *adapter) |
4478 | { | |
80605c65 | 4479 | struct ixgbe_hw *hw = &adapter->hw; |
f7e1027f AD |
4480 | int hdrm; |
4481 | u8 tc = netdev_get_num_tc(adapter->netdev); | |
80605c65 JF |
4482 | |
4483 | if (adapter->flags & IXGBE_FLAG_FDIR_HASH_CAPABLE || | |
4484 | adapter->flags & IXGBE_FLAG_FDIR_PERFECT_CAPABLE) | |
f7e1027f AD |
4485 | hdrm = 32 << adapter->fdir_pballoc; |
4486 | else | |
4487 | hdrm = 0; | |
80605c65 | 4488 | |
f7e1027f | 4489 | hw->mac.ops.set_rxpba(hw, tc, hdrm, PBA_STRATEGY_EQUAL); |
9da712d2 | 4490 | ixgbe_pbthresh_setup(adapter); |
80605c65 JF |
4491 | } |
4492 | ||
e4911d57 AD |
4493 | static void ixgbe_fdir_filter_restore(struct ixgbe_adapter *adapter) |
4494 | { | |
4495 | struct ixgbe_hw *hw = &adapter->hw; | |
b67bfe0d | 4496 | struct hlist_node *node2; |
e4911d57 AD |
4497 | struct ixgbe_fdir_filter *filter; |
4498 | ||
4499 | spin_lock(&adapter->fdir_perfect_lock); | |
4500 | ||
4501 | if (!hlist_empty(&adapter->fdir_filter_list)) | |
4502 | ixgbe_fdir_set_input_mask_82599(hw, &adapter->fdir_mask); | |
4503 | ||
b67bfe0d | 4504 | hlist_for_each_entry_safe(filter, node2, |
e4911d57 AD |
4505 | &adapter->fdir_filter_list, fdir_node) { |
4506 | ixgbe_fdir_write_perfect_filter_82599(hw, | |
1f4d5183 AD |
4507 | &filter->filter, |
4508 | filter->sw_idx, | |
4509 | (filter->action == IXGBE_FDIR_DROP_QUEUE) ? | |
4510 | IXGBE_FDIR_DROP_QUEUE : | |
4511 | adapter->rx_ring[filter->action]->reg_idx); | |
e4911d57 AD |
4512 | } |
4513 | ||
4514 | spin_unlock(&adapter->fdir_perfect_lock); | |
4515 | } | |
4516 | ||
2a47fa45 JF |
4517 | static void ixgbe_macvlan_set_rx_mode(struct net_device *dev, unsigned int pool, |
4518 | struct ixgbe_adapter *adapter) | |
4519 | { | |
4520 | struct ixgbe_hw *hw = &adapter->hw; | |
4521 | u32 vmolr; | |
4522 | ||
4523 | /* No unicast promiscuous support for VMDQ devices. */ | |
4524 | vmolr = IXGBE_READ_REG(hw, IXGBE_VMOLR(pool)); | |
4525 | vmolr |= (IXGBE_VMOLR_ROMPE | IXGBE_VMOLR_BAM | IXGBE_VMOLR_AUPE); | |
4526 | ||
4527 | /* clear the affected bit */ | |
4528 | vmolr &= ~IXGBE_VMOLR_MPE; | |
4529 | ||
4530 | if (dev->flags & IFF_ALLMULTI) { | |
4531 | vmolr |= IXGBE_VMOLR_MPE; | |
4532 | } else { | |
4533 | vmolr |= IXGBE_VMOLR_ROMPE; | |
4534 | hw->mac.ops.update_mc_addr_list(hw, dev); | |
4535 | } | |
5d7daa35 | 4536 | ixgbe_write_uc_addr_list(adapter->netdev, pool); |
2a47fa45 JF |
4537 | IXGBE_WRITE_REG(hw, IXGBE_VMOLR(pool), vmolr); |
4538 | } | |
4539 | ||
2a47fa45 JF |
4540 | static void ixgbe_fwd_psrtype(struct ixgbe_fwd_adapter *vadapter) |
4541 | { | |
4542 | struct ixgbe_adapter *adapter = vadapter->real_adapter; | |
219354d4 | 4543 | int rss_i = adapter->num_rx_queues_per_pool; |
2a47fa45 JF |
4544 | struct ixgbe_hw *hw = &adapter->hw; |
4545 | u16 pool = vadapter->pool; | |
4546 | u32 psrtype = IXGBE_PSRTYPE_TCPHDR | | |
4547 | IXGBE_PSRTYPE_UDPHDR | | |
4548 | IXGBE_PSRTYPE_IPV4HDR | | |
4549 | IXGBE_PSRTYPE_L2HDR | | |
4550 | IXGBE_PSRTYPE_IPV6HDR; | |
4551 | ||
4552 | if (hw->mac.type == ixgbe_mac_82598EB) | |
4553 | return; | |
4554 | ||
4555 | if (rss_i > 3) | |
4556 | psrtype |= 2 << 29; | |
4557 | else if (rss_i > 1) | |
4558 | psrtype |= 1 << 29; | |
4559 | ||
4560 | IXGBE_WRITE_REG(hw, IXGBE_PSRTYPE(VMDQ_P(pool)), psrtype); | |
4561 | } | |
4562 | ||
4563 | /** | |
4564 | * ixgbe_clean_rx_ring - Free Rx Buffers per Queue | |
4565 | * @rx_ring: ring to free buffers from | |
4566 | **/ | |
4567 | static void ixgbe_clean_rx_ring(struct ixgbe_ring *rx_ring) | |
4568 | { | |
4569 | struct device *dev = rx_ring->dev; | |
4570 | unsigned long size; | |
4571 | u16 i; | |
4572 | ||
4573 | /* ring already cleared, nothing to do */ | |
4574 | if (!rx_ring->rx_buffer_info) | |
4575 | return; | |
4576 | ||
4577 | /* Free all the Rx ring sk_buffs */ | |
4578 | for (i = 0; i < rx_ring->count; i++) { | |
18cb652a | 4579 | struct ixgbe_rx_buffer *rx_buffer = &rx_ring->rx_buffer_info[i]; |
2a47fa45 | 4580 | |
2a47fa45 JF |
4581 | if (rx_buffer->skb) { |
4582 | struct sk_buff *skb = rx_buffer->skb; | |
18cb652a | 4583 | if (IXGBE_CB(skb)->page_released) |
2a47fa45 JF |
4584 | dma_unmap_page(dev, |
4585 | IXGBE_CB(skb)->dma, | |
4586 | ixgbe_rx_bufsz(rx_ring), | |
4587 | DMA_FROM_DEVICE); | |
2a47fa45 | 4588 | dev_kfree_skb(skb); |
4d2fcfbc | 4589 | rx_buffer->skb = NULL; |
2a47fa45 | 4590 | } |
18cb652a AD |
4591 | |
4592 | if (!rx_buffer->page) | |
4593 | continue; | |
4594 | ||
4595 | dma_unmap_page(dev, rx_buffer->dma, | |
4596 | ixgbe_rx_pg_size(rx_ring), DMA_FROM_DEVICE); | |
4597 | __free_pages(rx_buffer->page, ixgbe_rx_pg_order(rx_ring)); | |
4598 | ||
2a47fa45 JF |
4599 | rx_buffer->page = NULL; |
4600 | } | |
4601 | ||
4602 | size = sizeof(struct ixgbe_rx_buffer) * rx_ring->count; | |
4603 | memset(rx_ring->rx_buffer_info, 0, size); | |
4604 | ||
4605 | /* Zero out the descriptor ring */ | |
4606 | memset(rx_ring->desc, 0, rx_ring->size); | |
4607 | ||
4608 | rx_ring->next_to_alloc = 0; | |
4609 | rx_ring->next_to_clean = 0; | |
4610 | rx_ring->next_to_use = 0; | |
4611 | } | |
4612 | ||
4613 | static void ixgbe_disable_fwd_ring(struct ixgbe_fwd_adapter *vadapter, | |
4614 | struct ixgbe_ring *rx_ring) | |
4615 | { | |
4616 | struct ixgbe_adapter *adapter = vadapter->real_adapter; | |
4617 | int index = rx_ring->queue_index + vadapter->rx_base_queue; | |
4618 | ||
4619 | /* shutdown specific queue receive and wait for dma to settle */ | |
4620 | ixgbe_disable_rx_queue(adapter, rx_ring); | |
4621 | usleep_range(10000, 20000); | |
4622 | ixgbe_irq_disable_queues(adapter, ((u64)1 << index)); | |
4623 | ixgbe_clean_rx_ring(rx_ring); | |
4624 | rx_ring->l2_accel_priv = NULL; | |
4625 | } | |
4626 | ||
ae72c8d0 JF |
4627 | static int ixgbe_fwd_ring_down(struct net_device *vdev, |
4628 | struct ixgbe_fwd_adapter *accel) | |
2a47fa45 JF |
4629 | { |
4630 | struct ixgbe_adapter *adapter = accel->real_adapter; | |
4631 | unsigned int rxbase = accel->rx_base_queue; | |
4632 | unsigned int txbase = accel->tx_base_queue; | |
4633 | int i; | |
4634 | ||
4635 | netif_tx_stop_all_queues(vdev); | |
4636 | ||
4637 | for (i = 0; i < adapter->num_rx_queues_per_pool; i++) { | |
4638 | ixgbe_disable_fwd_ring(accel, adapter->rx_ring[rxbase + i]); | |
4639 | adapter->rx_ring[rxbase + i]->netdev = adapter->netdev; | |
4640 | } | |
4641 | ||
4642 | for (i = 0; i < adapter->num_rx_queues_per_pool; i++) { | |
4643 | adapter->tx_ring[txbase + i]->l2_accel_priv = NULL; | |
4644 | adapter->tx_ring[txbase + i]->netdev = adapter->netdev; | |
4645 | } | |
4646 | ||
4647 | ||
4648 | return 0; | |
4649 | } | |
4650 | ||
4651 | static int ixgbe_fwd_ring_up(struct net_device *vdev, | |
4652 | struct ixgbe_fwd_adapter *accel) | |
4653 | { | |
4654 | struct ixgbe_adapter *adapter = accel->real_adapter; | |
4655 | unsigned int rxbase, txbase, queues; | |
4656 | int i, baseq, err = 0; | |
4657 | ||
4658 | if (!test_bit(accel->pool, &adapter->fwd_bitmask)) | |
4659 | return 0; | |
4660 | ||
4661 | baseq = accel->pool * adapter->num_rx_queues_per_pool; | |
4662 | netdev_dbg(vdev, "pool %i:%i queues %i:%i VSI bitmask %lx\n", | |
4663 | accel->pool, adapter->num_rx_pools, | |
4664 | baseq, baseq + adapter->num_rx_queues_per_pool, | |
4665 | adapter->fwd_bitmask); | |
4666 | ||
4667 | accel->netdev = vdev; | |
4668 | accel->rx_base_queue = rxbase = baseq; | |
4669 | accel->tx_base_queue = txbase = baseq; | |
4670 | ||
4671 | for (i = 0; i < adapter->num_rx_queues_per_pool; i++) | |
4672 | ixgbe_disable_fwd_ring(accel, adapter->rx_ring[rxbase + i]); | |
4673 | ||
4674 | for (i = 0; i < adapter->num_rx_queues_per_pool; i++) { | |
4675 | adapter->rx_ring[rxbase + i]->netdev = vdev; | |
4676 | adapter->rx_ring[rxbase + i]->l2_accel_priv = accel; | |
4677 | ixgbe_configure_rx_ring(adapter, adapter->rx_ring[rxbase + i]); | |
4678 | } | |
4679 | ||
4680 | for (i = 0; i < adapter->num_rx_queues_per_pool; i++) { | |
4681 | adapter->tx_ring[txbase + i]->netdev = vdev; | |
4682 | adapter->tx_ring[txbase + i]->l2_accel_priv = accel; | |
4683 | } | |
4684 | ||
4685 | queues = min_t(unsigned int, | |
4686 | adapter->num_rx_queues_per_pool, vdev->num_tx_queues); | |
4687 | err = netif_set_real_num_tx_queues(vdev, queues); | |
4688 | if (err) | |
4689 | goto fwd_queue_err; | |
4690 | ||
2a47fa45 JF |
4691 | err = netif_set_real_num_rx_queues(vdev, queues); |
4692 | if (err) | |
4693 | goto fwd_queue_err; | |
4694 | ||
4695 | if (is_valid_ether_addr(vdev->dev_addr)) | |
4696 | ixgbe_add_mac_filter(adapter, vdev->dev_addr, accel->pool); | |
4697 | ||
4698 | ixgbe_fwd_psrtype(accel); | |
4699 | ixgbe_macvlan_set_rx_mode(vdev, accel->pool, adapter); | |
4700 | return err; | |
4701 | fwd_queue_err: | |
4702 | ixgbe_fwd_ring_down(vdev, accel); | |
4703 | return err; | |
4704 | } | |
4705 | ||
4706 | static void ixgbe_configure_dfwd(struct ixgbe_adapter *adapter) | |
4707 | { | |
4708 | struct net_device *upper; | |
4709 | struct list_head *iter; | |
4710 | int err; | |
4711 | ||
4712 | netdev_for_each_all_upper_dev_rcu(adapter->netdev, upper, iter) { | |
4713 | if (netif_is_macvlan(upper)) { | |
4714 | struct macvlan_dev *dfwd = netdev_priv(upper); | |
4715 | struct ixgbe_fwd_adapter *vadapter = dfwd->fwd_priv; | |
4716 | ||
4717 | if (dfwd->fwd_priv) { | |
4718 | err = ixgbe_fwd_ring_up(upper, vadapter); | |
4719 | if (err) | |
4720 | continue; | |
4721 | } | |
4722 | } | |
4723 | } | |
4724 | } | |
4725 | ||
9a799d71 AK |
4726 | static void ixgbe_configure(struct ixgbe_adapter *adapter) |
4727 | { | |
d2f5e7f3 AS |
4728 | struct ixgbe_hw *hw = &adapter->hw; |
4729 | ||
80605c65 | 4730 | ixgbe_configure_pb(adapter); |
7a6b6f51 | 4731 | #ifdef CONFIG_IXGBE_DCB |
67ebd791 | 4732 | ixgbe_configure_dcb(adapter); |
2f90b865 | 4733 | #endif |
b35d4d42 AD |
4734 | /* |
4735 | * We must restore virtualization before VLANs or else | |
4736 | * the VLVF registers will not be populated | |
4737 | */ | |
4738 | ixgbe_configure_virtualization(adapter); | |
9a799d71 | 4739 | |
4c1d7b4b | 4740 | ixgbe_set_rx_mode(adapter->netdev); |
f62bbb5e JG |
4741 | ixgbe_restore_vlan(adapter); |
4742 | ||
d2f5e7f3 AS |
4743 | switch (hw->mac.type) { |
4744 | case ixgbe_mac_82599EB: | |
4745 | case ixgbe_mac_X540: | |
4746 | hw->mac.ops.disable_rx_buff(hw); | |
4747 | break; | |
4748 | default: | |
4749 | break; | |
4750 | } | |
4751 | ||
c4cf55e5 | 4752 | if (adapter->flags & IXGBE_FLAG_FDIR_HASH_CAPABLE) { |
4c1d7b4b AD |
4753 | ixgbe_init_fdir_signature_82599(&adapter->hw, |
4754 | adapter->fdir_pballoc); | |
e4911d57 AD |
4755 | } else if (adapter->flags & IXGBE_FLAG_FDIR_PERFECT_CAPABLE) { |
4756 | ixgbe_init_fdir_perfect_82599(&adapter->hw, | |
4757 | adapter->fdir_pballoc); | |
4758 | ixgbe_fdir_filter_restore(adapter); | |
c4cf55e5 | 4759 | } |
4c1d7b4b | 4760 | |
d2f5e7f3 AS |
4761 | switch (hw->mac.type) { |
4762 | case ixgbe_mac_82599EB: | |
4763 | case ixgbe_mac_X540: | |
4764 | hw->mac.ops.enable_rx_buff(hw); | |
4765 | break; | |
4766 | default: | |
4767 | break; | |
4768 | } | |
4769 | ||
7c8ae65a AD |
4770 | #ifdef IXGBE_FCOE |
4771 | /* configure FCoE L2 filters, redirection table, and Rx control */ | |
4772 | ixgbe_configure_fcoe(adapter); | |
4773 | ||
4774 | #endif /* IXGBE_FCOE */ | |
9a799d71 AK |
4775 | ixgbe_configure_tx(adapter); |
4776 | ixgbe_configure_rx(adapter); | |
2a47fa45 | 4777 | ixgbe_configure_dfwd(adapter); |
9a799d71 AK |
4778 | } |
4779 | ||
0ecc061d | 4780 | /** |
e8e26350 PW |
4781 | * ixgbe_sfp_link_config - set up SFP+ link |
4782 | * @adapter: pointer to private adapter struct | |
4783 | **/ | |
4784 | static void ixgbe_sfp_link_config(struct ixgbe_adapter *adapter) | |
4785 | { | |
7086400d | 4786 | /* |
52f33af8 | 4787 | * We are assuming the worst case scenario here, and that |
7086400d AD |
4788 | * is that an SFP was inserted/removed after the reset |
4789 | * but before SFP detection was enabled. As such the best | |
4790 | * solution is to just start searching as soon as we start | |
4791 | */ | |
4792 | if (adapter->hw.mac.type == ixgbe_mac_82598EB) | |
4793 | adapter->flags2 |= IXGBE_FLAG2_SEARCH_FOR_SFP; | |
e8e26350 | 4794 | |
7086400d | 4795 | adapter->flags2 |= IXGBE_FLAG2_SFP_NEEDS_RESET; |
e8e26350 PW |
4796 | } |
4797 | ||
4798 | /** | |
4799 | * ixgbe_non_sfp_link_config - set up non-SFP+ link | |
0ecc061d PWJ |
4800 | * @hw: pointer to private hardware struct |
4801 | * | |
4802 | * Returns 0 on success, negative on failure | |
4803 | **/ | |
e8e26350 | 4804 | static int ixgbe_non_sfp_link_config(struct ixgbe_hw *hw) |
0ecc061d | 4805 | { |
3d292265 JH |
4806 | u32 speed; |
4807 | bool autoneg, link_up = false; | |
a1e869de | 4808 | int ret = IXGBE_ERR_LINK_SETUP; |
0ecc061d PWJ |
4809 | |
4810 | if (hw->mac.ops.check_link) | |
3d292265 | 4811 | ret = hw->mac.ops.check_link(hw, &speed, &link_up, false); |
0ecc061d PWJ |
4812 | |
4813 | if (ret) | |
e90dd264 | 4814 | return ret; |
0ecc061d | 4815 | |
3d292265 JH |
4816 | speed = hw->phy.autoneg_advertised; |
4817 | if ((!speed) && (hw->mac.ops.get_link_capabilities)) | |
4818 | ret = hw->mac.ops.get_link_capabilities(hw, &speed, | |
4819 | &autoneg); | |
0ecc061d | 4820 | if (ret) |
e90dd264 | 4821 | return ret; |
0ecc061d | 4822 | |
8620a103 | 4823 | if (hw->mac.ops.setup_link) |
fd0326f2 | 4824 | ret = hw->mac.ops.setup_link(hw, speed, link_up); |
e90dd264 | 4825 | |
0ecc061d PWJ |
4826 | return ret; |
4827 | } | |
4828 | ||
a34bcfff | 4829 | static void ixgbe_setup_gpie(struct ixgbe_adapter *adapter) |
9a799d71 | 4830 | { |
9a799d71 | 4831 | struct ixgbe_hw *hw = &adapter->hw; |
a34bcfff | 4832 | u32 gpie = 0; |
9a799d71 | 4833 | |
9b471446 | 4834 | if (adapter->flags & IXGBE_FLAG_MSIX_ENABLED) { |
a34bcfff AD |
4835 | gpie = IXGBE_GPIE_MSIX_MODE | IXGBE_GPIE_PBA_SUPPORT | |
4836 | IXGBE_GPIE_OCD; | |
4837 | gpie |= IXGBE_GPIE_EIAME; | |
9b471446 JB |
4838 | /* |
4839 | * use EIAM to auto-mask when MSI-X interrupt is asserted | |
4840 | * this saves a register write for every interrupt | |
4841 | */ | |
4842 | switch (hw->mac.type) { | |
4843 | case ixgbe_mac_82598EB: | |
4844 | IXGBE_WRITE_REG(hw, IXGBE_EIAM, IXGBE_EICS_RTX_QUEUE); | |
4845 | break; | |
9b471446 | 4846 | case ixgbe_mac_82599EB: |
b93a2226 | 4847 | case ixgbe_mac_X540: |
9a75a1ac DS |
4848 | case ixgbe_mac_X550: |
4849 | case ixgbe_mac_X550EM_x: | |
b93a2226 | 4850 | default: |
9b471446 JB |
4851 | IXGBE_WRITE_REG(hw, IXGBE_EIAM_EX(0), 0xFFFFFFFF); |
4852 | IXGBE_WRITE_REG(hw, IXGBE_EIAM_EX(1), 0xFFFFFFFF); | |
4853 | break; | |
4854 | } | |
4855 | } else { | |
021230d4 AV |
4856 | /* legacy interrupts, use EIAM to auto-mask when reading EICR, |
4857 | * specifically only auto mask tx and rx interrupts */ | |
4858 | IXGBE_WRITE_REG(hw, IXGBE_EIAM, IXGBE_EICS_RTX_QUEUE); | |
4859 | } | |
9a799d71 | 4860 | |
a34bcfff AD |
4861 | /* XXX: to interrupt immediately for EICS writes, enable this */ |
4862 | /* gpie |= IXGBE_GPIE_EIMEN; */ | |
4863 | ||
4864 | if (adapter->flags & IXGBE_FLAG_SRIOV_ENABLED) { | |
4865 | gpie &= ~IXGBE_GPIE_VTMODE_MASK; | |
73079ea0 AD |
4866 | |
4867 | switch (adapter->ring_feature[RING_F_VMDQ].mask) { | |
4868 | case IXGBE_82599_VMDQ_8Q_MASK: | |
4869 | gpie |= IXGBE_GPIE_VTMODE_16; | |
4870 | break; | |
4871 | case IXGBE_82599_VMDQ_4Q_MASK: | |
4872 | gpie |= IXGBE_GPIE_VTMODE_32; | |
4873 | break; | |
4874 | default: | |
4875 | gpie |= IXGBE_GPIE_VTMODE_64; | |
4876 | break; | |
4877 | } | |
119fc60a MC |
4878 | } |
4879 | ||
5fdd31f9 | 4880 | /* Enable Thermal over heat sensor interrupt */ |
f3df98ec DS |
4881 | if (adapter->flags2 & IXGBE_FLAG2_TEMP_SENSOR_CAPABLE) { |
4882 | switch (adapter->hw.mac.type) { | |
4883 | case ixgbe_mac_82599EB: | |
9a900eca | 4884 | gpie |= IXGBE_SDP0_GPIEN_8259X; |
f3df98ec DS |
4885 | break; |
4886 | case ixgbe_mac_X540: | |
4887 | gpie |= IXGBE_EIMS_TS; | |
4888 | break; | |
4889 | default: | |
4890 | break; | |
4891 | } | |
4892 | } | |
5fdd31f9 | 4893 | |
a34bcfff AD |
4894 | /* Enable fan failure interrupt */ |
4895 | if (adapter->flags & IXGBE_FLAG_FAN_FAIL_CAPABLE) | |
9a900eca | 4896 | gpie |= IXGBE_SDP1_GPIEN(hw); |
0befdb3e | 4897 | |
2698b208 | 4898 | if (hw->mac.type == ixgbe_mac_82599EB) { |
9a900eca DS |
4899 | gpie |= IXGBE_SDP1_GPIEN_8259X; |
4900 | gpie |= IXGBE_SDP2_GPIEN_8259X; | |
2698b208 | 4901 | } |
a34bcfff AD |
4902 | |
4903 | IXGBE_WRITE_REG(hw, IXGBE_GPIE, gpie); | |
4904 | } | |
4905 | ||
c7ccde0f | 4906 | static void ixgbe_up_complete(struct ixgbe_adapter *adapter) |
a34bcfff AD |
4907 | { |
4908 | struct ixgbe_hw *hw = &adapter->hw; | |
a34bcfff | 4909 | int err; |
a34bcfff AD |
4910 | u32 ctrl_ext; |
4911 | ||
4912 | ixgbe_get_hw_control(adapter); | |
4913 | ixgbe_setup_gpie(adapter); | |
e8e26350 | 4914 | |
9a799d71 AK |
4915 | if (adapter->flags & IXGBE_FLAG_MSIX_ENABLED) |
4916 | ixgbe_configure_msix(adapter); | |
4917 | else | |
4918 | ixgbe_configure_msi_and_legacy(adapter); | |
4919 | ||
ec74a471 ET |
4920 | /* enable the optics for 82599 SFP+ fiber */ |
4921 | if (hw->mac.ops.enable_tx_laser) | |
61fac744 PW |
4922 | hw->mac.ops.enable_tx_laser(hw); |
4923 | ||
961fac88 DS |
4924 | if (hw->phy.ops.set_phy_power) |
4925 | hw->phy.ops.set_phy_power(hw, true); | |
4926 | ||
4e857c58 | 4927 | smp_mb__before_atomic(); |
9a799d71 | 4928 | clear_bit(__IXGBE_DOWN, &adapter->state); |
021230d4 AV |
4929 | ixgbe_napi_enable_all(adapter); |
4930 | ||
73c4b7cd AD |
4931 | if (ixgbe_is_sfp(hw)) { |
4932 | ixgbe_sfp_link_config(adapter); | |
4933 | } else { | |
4934 | err = ixgbe_non_sfp_link_config(hw); | |
4935 | if (err) | |
4936 | e_err(probe, "link_config FAILED %d\n", err); | |
4937 | } | |
4938 | ||
021230d4 AV |
4939 | /* clear any pending interrupts, may auto mask */ |
4940 | IXGBE_READ_REG(hw, IXGBE_EICR); | |
6af3b9eb | 4941 | ixgbe_irq_enable(adapter, true, true); |
9a799d71 | 4942 | |
bf069c97 DS |
4943 | /* |
4944 | * If this adapter has a fan, check to see if we had a failure | |
4945 | * before we enabled the interrupt. | |
4946 | */ | |
4947 | if (adapter->flags & IXGBE_FLAG_FAN_FAIL_CAPABLE) { | |
4948 | u32 esdp = IXGBE_READ_REG(hw, IXGBE_ESDP); | |
4949 | if (esdp & IXGBE_ESDP_SDP1) | |
396e799c | 4950 | e_crit(drv, "Fan has stopped, replace the adapter\n"); |
bf069c97 DS |
4951 | } |
4952 | ||
9a799d71 AK |
4953 | /* bring the link up in the watchdog, this could race with our first |
4954 | * link up interrupt but shouldn't be a problem */ | |
cf8280ee JB |
4955 | adapter->flags |= IXGBE_FLAG_NEED_LINK_UPDATE; |
4956 | adapter->link_check_timeout = jiffies; | |
7086400d | 4957 | mod_timer(&adapter->service_timer, jiffies); |
c9205697 GR |
4958 | |
4959 | /* Set PF Reset Done bit so PF/VF Mail Ops can work */ | |
4960 | ctrl_ext = IXGBE_READ_REG(hw, IXGBE_CTRL_EXT); | |
4961 | ctrl_ext |= IXGBE_CTRL_EXT_PFRSTD; | |
4962 | IXGBE_WRITE_REG(hw, IXGBE_CTRL_EXT, ctrl_ext); | |
9a799d71 AK |
4963 | } |
4964 | ||
d4f80882 AV |
4965 | void ixgbe_reinit_locked(struct ixgbe_adapter *adapter) |
4966 | { | |
4967 | WARN_ON(in_interrupt()); | |
7086400d AD |
4968 | /* put off any impending NetWatchDogTimeout */ |
4969 | adapter->netdev->trans_start = jiffies; | |
4970 | ||
d4f80882 | 4971 | while (test_and_set_bit(__IXGBE_RESETTING, &adapter->state)) |
032b4325 | 4972 | usleep_range(1000, 2000); |
d4f80882 | 4973 | ixgbe_down(adapter); |
5809a1ae GR |
4974 | /* |
4975 | * If SR-IOV enabled then wait a bit before bringing the adapter | |
4976 | * back up to give the VFs time to respond to the reset. The | |
4977 | * two second wait is based upon the watchdog timer cycle in | |
4978 | * the VF driver. | |
4979 | */ | |
4980 | if (adapter->flags & IXGBE_FLAG_SRIOV_ENABLED) | |
4981 | msleep(2000); | |
d4f80882 AV |
4982 | ixgbe_up(adapter); |
4983 | clear_bit(__IXGBE_RESETTING, &adapter->state); | |
4984 | } | |
4985 | ||
c7ccde0f | 4986 | void ixgbe_up(struct ixgbe_adapter *adapter) |
9a799d71 AK |
4987 | { |
4988 | /* hardware has been reset, we need to reload some things */ | |
4989 | ixgbe_configure(adapter); | |
4990 | ||
c7ccde0f | 4991 | ixgbe_up_complete(adapter); |
9a799d71 AK |
4992 | } |
4993 | ||
4994 | void ixgbe_reset(struct ixgbe_adapter *adapter) | |
4995 | { | |
c44ade9e | 4996 | struct ixgbe_hw *hw = &adapter->hw; |
5d7daa35 | 4997 | struct net_device *netdev = adapter->netdev; |
8ca783ab | 4998 | int err; |
5d7daa35 | 4999 | u8 old_addr[ETH_ALEN]; |
8ca783ab | 5000 | |
b0483c8f MR |
5001 | if (ixgbe_removed(hw->hw_addr)) |
5002 | return; | |
7086400d AD |
5003 | /* lock SFP init bit to prevent race conditions with the watchdog */ |
5004 | while (test_and_set_bit(__IXGBE_IN_SFP_INIT, &adapter->state)) | |
5005 | usleep_range(1000, 2000); | |
5006 | ||
5007 | /* clear all SFP and link config related flags while holding SFP_INIT */ | |
5008 | adapter->flags2 &= ~(IXGBE_FLAG2_SEARCH_FOR_SFP | | |
5009 | IXGBE_FLAG2_SFP_NEEDS_RESET); | |
5010 | adapter->flags &= ~IXGBE_FLAG_NEED_LINK_CONFIG; | |
5011 | ||
8ca783ab | 5012 | err = hw->mac.ops.init_hw(hw); |
da4dd0f7 PWJ |
5013 | switch (err) { |
5014 | case 0: | |
5015 | case IXGBE_ERR_SFP_NOT_PRESENT: | |
7086400d | 5016 | case IXGBE_ERR_SFP_NOT_SUPPORTED: |
da4dd0f7 PWJ |
5017 | break; |
5018 | case IXGBE_ERR_MASTER_REQUESTS_PENDING: | |
849c4542 | 5019 | e_dev_err("master disable timed out\n"); |
da4dd0f7 | 5020 | break; |
794caeb2 PWJ |
5021 | case IXGBE_ERR_EEPROM_VERSION: |
5022 | /* We are running on a pre-production device, log a warning */ | |
849c4542 | 5023 | e_dev_warn("This device is a pre-production adapter/LOM. " |
52f33af8 | 5024 | "Please be aware there may be issues associated with " |
849c4542 ET |
5025 | "your hardware. If you are experiencing problems " |
5026 | "please contact your Intel or hardware " | |
5027 | "representative who provided you with this " | |
5028 | "hardware.\n"); | |
794caeb2 | 5029 | break; |
da4dd0f7 | 5030 | default: |
849c4542 | 5031 | e_dev_err("Hardware Error: %d\n", err); |
da4dd0f7 | 5032 | } |
9a799d71 | 5033 | |
7086400d | 5034 | clear_bit(__IXGBE_IN_SFP_INIT, &adapter->state); |
5d7daa35 JK |
5035 | /* do not flush user set addresses */ |
5036 | memcpy(old_addr, &adapter->mac_table[0].addr, netdev->addr_len); | |
5037 | ixgbe_flush_sw_mac_table(adapter); | |
5038 | ixgbe_mac_set_default_filter(adapter, old_addr); | |
7fa7c9dc AD |
5039 | |
5040 | /* update SAN MAC vmdq pool selection */ | |
5041 | if (hw->mac.san_mac_rar_index) | |
5042 | hw->mac.ops.set_vmdq_san_mac(hw, VMDQ_P(0)); | |
1a71ab24 | 5043 | |
8fecf67c | 5044 | if (test_bit(__IXGBE_PTP_RUNNING, &adapter->state)) |
1a71ab24 | 5045 | ixgbe_ptp_reset(adapter); |
961fac88 DS |
5046 | |
5047 | if (hw->phy.ops.set_phy_power) { | |
5048 | if (!netif_running(adapter->netdev) && !adapter->wol) | |
5049 | hw->phy.ops.set_phy_power(hw, false); | |
5050 | else | |
5051 | hw->phy.ops.set_phy_power(hw, true); | |
5052 | } | |
9a799d71 AK |
5053 | } |
5054 | ||
9a799d71 AK |
5055 | /** |
5056 | * ixgbe_clean_tx_ring - Free Tx Buffers | |
9a799d71 AK |
5057 | * @tx_ring: ring to be cleaned |
5058 | **/ | |
b6ec895e | 5059 | static void ixgbe_clean_tx_ring(struct ixgbe_ring *tx_ring) |
9a799d71 AK |
5060 | { |
5061 | struct ixgbe_tx_buffer *tx_buffer_info; | |
5062 | unsigned long size; | |
b6ec895e | 5063 | u16 i; |
9a799d71 | 5064 | |
84418e3b AD |
5065 | /* ring already cleared, nothing to do */ |
5066 | if (!tx_ring->tx_buffer_info) | |
5067 | return; | |
9a799d71 | 5068 | |
84418e3b | 5069 | /* Free all the Tx ring sk_buffs */ |
9a799d71 AK |
5070 | for (i = 0; i < tx_ring->count; i++) { |
5071 | tx_buffer_info = &tx_ring->tx_buffer_info[i]; | |
b6ec895e | 5072 | ixgbe_unmap_and_free_tx_resource(tx_ring, tx_buffer_info); |
9a799d71 AK |
5073 | } |
5074 | ||
dad8a3b3 JF |
5075 | netdev_tx_reset_queue(txring_txq(tx_ring)); |
5076 | ||
9a799d71 AK |
5077 | size = sizeof(struct ixgbe_tx_buffer) * tx_ring->count; |
5078 | memset(tx_ring->tx_buffer_info, 0, size); | |
5079 | ||
5080 | /* Zero out the descriptor ring */ | |
5081 | memset(tx_ring->desc, 0, tx_ring->size); | |
5082 | ||
5083 | tx_ring->next_to_use = 0; | |
5084 | tx_ring->next_to_clean = 0; | |
9a799d71 AK |
5085 | } |
5086 | ||
5087 | /** | |
021230d4 | 5088 | * ixgbe_clean_all_rx_rings - Free Rx Buffers for all queues |
9a799d71 AK |
5089 | * @adapter: board private structure |
5090 | **/ | |
021230d4 | 5091 | static void ixgbe_clean_all_rx_rings(struct ixgbe_adapter *adapter) |
9a799d71 AK |
5092 | { |
5093 | int i; | |
5094 | ||
021230d4 | 5095 | for (i = 0; i < adapter->num_rx_queues; i++) |
b6ec895e | 5096 | ixgbe_clean_rx_ring(adapter->rx_ring[i]); |
9a799d71 AK |
5097 | } |
5098 | ||
5099 | /** | |
021230d4 | 5100 | * ixgbe_clean_all_tx_rings - Free Tx Buffers for all queues |
9a799d71 AK |
5101 | * @adapter: board private structure |
5102 | **/ | |
021230d4 | 5103 | static void ixgbe_clean_all_tx_rings(struct ixgbe_adapter *adapter) |
9a799d71 AK |
5104 | { |
5105 | int i; | |
5106 | ||
021230d4 | 5107 | for (i = 0; i < adapter->num_tx_queues; i++) |
b6ec895e | 5108 | ixgbe_clean_tx_ring(adapter->tx_ring[i]); |
9a799d71 AK |
5109 | } |
5110 | ||
e4911d57 AD |
5111 | static void ixgbe_fdir_filter_exit(struct ixgbe_adapter *adapter) |
5112 | { | |
b67bfe0d | 5113 | struct hlist_node *node2; |
e4911d57 AD |
5114 | struct ixgbe_fdir_filter *filter; |
5115 | ||
5116 | spin_lock(&adapter->fdir_perfect_lock); | |
5117 | ||
b67bfe0d | 5118 | hlist_for_each_entry_safe(filter, node2, |
e4911d57 AD |
5119 | &adapter->fdir_filter_list, fdir_node) { |
5120 | hlist_del(&filter->fdir_node); | |
5121 | kfree(filter); | |
5122 | } | |
5123 | adapter->fdir_filter_count = 0; | |
5124 | ||
5125 | spin_unlock(&adapter->fdir_perfect_lock); | |
5126 | } | |
5127 | ||
9a799d71 AK |
5128 | void ixgbe_down(struct ixgbe_adapter *adapter) |
5129 | { | |
5130 | struct net_device *netdev = adapter->netdev; | |
7f821875 | 5131 | struct ixgbe_hw *hw = &adapter->hw; |
2a47fa45 JF |
5132 | struct net_device *upper; |
5133 | struct list_head *iter; | |
bf29ee6c | 5134 | int i; |
9a799d71 AK |
5135 | |
5136 | /* signal that we are down to the interrupt handler */ | |
c3049c8f MR |
5137 | if (test_and_set_bit(__IXGBE_DOWN, &adapter->state)) |
5138 | return; /* do nothing if already down */ | |
9a799d71 AK |
5139 | |
5140 | /* disable receives */ | |
1f9ac57c | 5141 | hw->mac.ops.disable_rx(hw); |
9a799d71 | 5142 | |
2d39d576 YZ |
5143 | /* disable all enabled rx queues */ |
5144 | for (i = 0; i < adapter->num_rx_queues; i++) | |
5145 | /* this call also flushes the previous write */ | |
5146 | ixgbe_disable_rx_queue(adapter, adapter->rx_ring[i]); | |
5147 | ||
032b4325 | 5148 | usleep_range(10000, 20000); |
9a799d71 | 5149 | |
7f821875 JB |
5150 | netif_tx_stop_all_queues(netdev); |
5151 | ||
7086400d | 5152 | /* call carrier off first to avoid false dev_watchdog timeouts */ |
c0dfb90e JF |
5153 | netif_carrier_off(netdev); |
5154 | netif_tx_disable(netdev); | |
5155 | ||
2a47fa45 JF |
5156 | /* disable any upper devices */ |
5157 | netdev_for_each_all_upper_dev_rcu(adapter->netdev, upper, iter) { | |
5158 | if (netif_is_macvlan(upper)) { | |
5159 | struct macvlan_dev *vlan = netdev_priv(upper); | |
5160 | ||
5161 | if (vlan->fwd_priv) { | |
5162 | netif_tx_stop_all_queues(upper); | |
5163 | netif_carrier_off(upper); | |
5164 | netif_tx_disable(upper); | |
5165 | } | |
5166 | } | |
5167 | } | |
5168 | ||
c0dfb90e JF |
5169 | ixgbe_irq_disable(adapter); |
5170 | ||
5171 | ixgbe_napi_disable_all(adapter); | |
5172 | ||
d034acf1 AD |
5173 | adapter->flags2 &= ~(IXGBE_FLAG2_FDIR_REQUIRES_REINIT | |
5174 | IXGBE_FLAG2_RESET_REQUESTED); | |
7086400d AD |
5175 | adapter->flags &= ~IXGBE_FLAG_NEED_LINK_UPDATE; |
5176 | ||
5177 | del_timer_sync(&adapter->service_timer); | |
5178 | ||
34cecbbf | 5179 | if (adapter->num_vfs) { |
8e34d1aa AD |
5180 | /* Clear EITR Select mapping */ |
5181 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_EITRSEL, 0); | |
34cecbbf AD |
5182 | |
5183 | /* Mark all the VFs as inactive */ | |
5184 | for (i = 0 ; i < adapter->num_vfs; i++) | |
3db1cd5c | 5185 | adapter->vfinfo[i].clear_to_send = false; |
34cecbbf | 5186 | |
34cecbbf AD |
5187 | /* ping all the active vfs to let them know we are going down */ |
5188 | ixgbe_ping_all_vfs(adapter); | |
5189 | ||
5190 | /* Disable all VFTE/VFRE TX/RX */ | |
5191 | ixgbe_disable_tx_rx(adapter); | |
b25ebfd2 PW |
5192 | } |
5193 | ||
7f821875 JB |
5194 | /* disable transmits in the hardware now that interrupts are off */ |
5195 | for (i = 0; i < adapter->num_tx_queues; i++) { | |
bf29ee6c | 5196 | u8 reg_idx = adapter->tx_ring[i]->reg_idx; |
34cecbbf | 5197 | IXGBE_WRITE_REG(hw, IXGBE_TXDCTL(reg_idx), IXGBE_TXDCTL_SWFLSH); |
7f821875 | 5198 | } |
34cecbbf | 5199 | |
9a75a1ac | 5200 | /* Disable the Tx DMA engine on 82599 and later MAC */ |
bd508178 AD |
5201 | switch (hw->mac.type) { |
5202 | case ixgbe_mac_82599EB: | |
b93a2226 | 5203 | case ixgbe_mac_X540: |
9a75a1ac DS |
5204 | case ixgbe_mac_X550: |
5205 | case ixgbe_mac_X550EM_x: | |
88512539 | 5206 | IXGBE_WRITE_REG(hw, IXGBE_DMATXCTL, |
e8e9f696 JP |
5207 | (IXGBE_READ_REG(hw, IXGBE_DMATXCTL) & |
5208 | ~IXGBE_DMATXCTL_TE)); | |
bd508178 AD |
5209 | break; |
5210 | default: | |
5211 | break; | |
5212 | } | |
7f821875 | 5213 | |
6f4a0e45 PL |
5214 | if (!pci_channel_offline(adapter->pdev)) |
5215 | ixgbe_reset(adapter); | |
c6ecf39a | 5216 | |
ec74a471 ET |
5217 | /* power down the optics for 82599 SFP+ fiber */ |
5218 | if (hw->mac.ops.disable_tx_laser) | |
c6ecf39a DS |
5219 | hw->mac.ops.disable_tx_laser(hw); |
5220 | ||
9a799d71 AK |
5221 | ixgbe_clean_all_tx_rings(adapter); |
5222 | ixgbe_clean_all_rx_rings(adapter); | |
5223 | ||
5dd2d332 | 5224 | #ifdef CONFIG_IXGBE_DCA |
96b0e0f6 | 5225 | /* since we reset the hardware DCA settings were cleared */ |
e35ec126 | 5226 | ixgbe_setup_dca(adapter); |
96b0e0f6 | 5227 | #endif |
9a799d71 AK |
5228 | } |
5229 | ||
9a799d71 AK |
5230 | /** |
5231 | * ixgbe_tx_timeout - Respond to a Tx Hang | |
5232 | * @netdev: network interface device structure | |
5233 | **/ | |
5234 | static void ixgbe_tx_timeout(struct net_device *netdev) | |
5235 | { | |
5236 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
5237 | ||
5238 | /* Do the reset outside of interrupt context */ | |
c83c6cbd | 5239 | ixgbe_tx_timeout_reset(adapter); |
9a799d71 AK |
5240 | } |
5241 | ||
9a799d71 AK |
5242 | /** |
5243 | * ixgbe_sw_init - Initialize general software structures (struct ixgbe_adapter) | |
5244 | * @adapter: board private structure to initialize | |
5245 | * | |
5246 | * ixgbe_sw_init initializes the Adapter private data structure. | |
5247 | * Fields are initialized based on PCI device information and | |
5248 | * OS network device settings (MTU size). | |
5249 | **/ | |
9f9a12f8 | 5250 | static int ixgbe_sw_init(struct ixgbe_adapter *adapter) |
9a799d71 AK |
5251 | { |
5252 | struct ixgbe_hw *hw = &adapter->hw; | |
5253 | struct pci_dev *pdev = adapter->pdev; | |
d3cb9869 | 5254 | unsigned int rss, fdir; |
cb6d0f5e | 5255 | u32 fwsm; |
7a6b6f51 | 5256 | #ifdef CONFIG_IXGBE_DCB |
2f90b865 AD |
5257 | int j; |
5258 | struct tc_configuration *tc; | |
5259 | #endif | |
021230d4 | 5260 | |
c44ade9e JB |
5261 | /* PCI config space info */ |
5262 | ||
5263 | hw->vendor_id = pdev->vendor; | |
5264 | hw->device_id = pdev->device; | |
5265 | hw->revision_id = pdev->revision; | |
5266 | hw->subsystem_vendor_id = pdev->subsystem_vendor; | |
5267 | hw->subsystem_device_id = pdev->subsystem_device; | |
5268 | ||
8fc3bb6d | 5269 | /* Set common capability flags and settings */ |
0f9b232b | 5270 | rss = min_t(int, ixgbe_max_rss_indices(adapter), num_online_cpus()); |
c087663e | 5271 | adapter->ring_feature[RING_F_RSS].limit = rss; |
8fc3bb6d ET |
5272 | adapter->flags2 |= IXGBE_FLAG2_RSC_CAPABLE; |
5273 | adapter->flags2 |= IXGBE_FLAG2_RSC_ENABLED; | |
8fc3bb6d ET |
5274 | adapter->max_q_vectors = MAX_Q_VECTORS_82599; |
5275 | adapter->atr_sample_rate = 20; | |
d3cb9869 AD |
5276 | fdir = min_t(int, IXGBE_MAX_FDIR_INDICES, num_online_cpus()); |
5277 | adapter->ring_feature[RING_F_FDIR].limit = fdir; | |
8fc3bb6d ET |
5278 | adapter->fdir_pballoc = IXGBE_FDIR_PBALLOC_64K; |
5279 | #ifdef CONFIG_IXGBE_DCA | |
5280 | adapter->flags |= IXGBE_FLAG_DCA_CAPABLE; | |
5281 | #endif | |
5282 | #ifdef IXGBE_FCOE | |
5283 | adapter->flags |= IXGBE_FLAG_FCOE_CAPABLE; | |
5284 | adapter->flags &= ~IXGBE_FLAG_FCOE_ENABLED; | |
5285 | #ifdef CONFIG_IXGBE_DCB | |
5286 | /* Default traffic class to use for FCoE */ | |
5287 | adapter->fcoe.up = IXGBE_FCOE_DEFTC; | |
5288 | #endif /* CONFIG_IXGBE_DCB */ | |
5289 | #endif /* IXGBE_FCOE */ | |
5290 | ||
5d7daa35 JK |
5291 | adapter->mac_table = kzalloc(sizeof(struct ixgbe_mac_addr) * |
5292 | hw->mac.num_rar_entries, | |
5293 | GFP_ATOMIC); | |
5294 | ||
8fc3bb6d | 5295 | /* Set MAC specific capability flags and exceptions */ |
bd508178 AD |
5296 | switch (hw->mac.type) { |
5297 | case ixgbe_mac_82598EB: | |
8fc3bb6d ET |
5298 | adapter->flags2 &= ~IXGBE_FLAG2_RSC_CAPABLE; |
5299 | adapter->flags2 &= ~IXGBE_FLAG2_RSC_ENABLED; | |
5300 | ||
bf069c97 DS |
5301 | if (hw->device_id == IXGBE_DEV_ID_82598AT) |
5302 | adapter->flags |= IXGBE_FLAG_FAN_FAIL_CAPABLE; | |
8fc3bb6d | 5303 | |
49c7ffbe | 5304 | adapter->max_q_vectors = MAX_Q_VECTORS_82598; |
8fc3bb6d ET |
5305 | adapter->ring_feature[RING_F_FDIR].limit = 0; |
5306 | adapter->atr_sample_rate = 0; | |
5307 | adapter->fdir_pballoc = 0; | |
5308 | #ifdef IXGBE_FCOE | |
5309 | adapter->flags &= ~IXGBE_FLAG_FCOE_CAPABLE; | |
5310 | adapter->flags &= ~IXGBE_FLAG_FCOE_ENABLED; | |
5311 | #ifdef CONFIG_IXGBE_DCB | |
5312 | adapter->fcoe.up = 0; | |
5313 | #endif /* IXGBE_DCB */ | |
5314 | #endif /* IXGBE_FCOE */ | |
5315 | break; | |
5316 | case ixgbe_mac_82599EB: | |
5317 | if (hw->device_id == IXGBE_DEV_ID_82599_T3_LOM) | |
5318 | adapter->flags2 |= IXGBE_FLAG2_TEMP_SENSOR_CAPABLE; | |
bd508178 | 5319 | break; |
b93a2226 | 5320 | case ixgbe_mac_X540: |
9a900eca | 5321 | fwsm = IXGBE_READ_REG(hw, IXGBE_FWSM(hw)); |
cb6d0f5e JK |
5322 | if (fwsm & IXGBE_FWSM_TS_ENABLED) |
5323 | adapter->flags2 |= IXGBE_FLAG2_TEMP_SENSOR_CAPABLE; | |
bd508178 | 5324 | break; |
9a75a1ac DS |
5325 | case ixgbe_mac_X550EM_x: |
5326 | case ixgbe_mac_X550: | |
5327 | #ifdef CONFIG_IXGBE_DCA | |
5328 | adapter->flags &= ~IXGBE_FLAG_DCA_CAPABLE; | |
67359c3c MR |
5329 | #endif |
5330 | #ifdef CONFIG_IXGBE_VXLAN | |
5331 | adapter->flags |= IXGBE_FLAG_VXLAN_OFFLOAD_CAPABLE; | |
9a75a1ac DS |
5332 | #endif |
5333 | break; | |
bd508178 AD |
5334 | default: |
5335 | break; | |
f8212f97 | 5336 | } |
2f90b865 | 5337 | |
7c8ae65a AD |
5338 | #ifdef IXGBE_FCOE |
5339 | /* FCoE support exists, always init the FCoE lock */ | |
5340 | spin_lock_init(&adapter->fcoe.lock); | |
5341 | ||
5342 | #endif | |
1fc5f038 AD |
5343 | /* n-tuple support exists, always init our spinlock */ |
5344 | spin_lock_init(&adapter->fdir_perfect_lock); | |
5345 | ||
7a6b6f51 | 5346 | #ifdef CONFIG_IXGBE_DCB |
4de2a022 JF |
5347 | switch (hw->mac.type) { |
5348 | case ixgbe_mac_X540: | |
9a75a1ac DS |
5349 | case ixgbe_mac_X550: |
5350 | case ixgbe_mac_X550EM_x: | |
4de2a022 JF |
5351 | adapter->dcb_cfg.num_tcs.pg_tcs = X540_TRAFFIC_CLASS; |
5352 | adapter->dcb_cfg.num_tcs.pfc_tcs = X540_TRAFFIC_CLASS; | |
5353 | break; | |
5354 | default: | |
5355 | adapter->dcb_cfg.num_tcs.pg_tcs = MAX_TRAFFIC_CLASS; | |
5356 | adapter->dcb_cfg.num_tcs.pfc_tcs = MAX_TRAFFIC_CLASS; | |
5357 | break; | |
5358 | } | |
5359 | ||
2f90b865 AD |
5360 | /* Configure DCB traffic classes */ |
5361 | for (j = 0; j < MAX_TRAFFIC_CLASS; j++) { | |
5362 | tc = &adapter->dcb_cfg.tc_config[j]; | |
5363 | tc->path[DCB_TX_CONFIG].bwg_id = 0; | |
5364 | tc->path[DCB_TX_CONFIG].bwg_percent = 12 + (j & 1); | |
5365 | tc->path[DCB_RX_CONFIG].bwg_id = 0; | |
5366 | tc->path[DCB_RX_CONFIG].bwg_percent = 12 + (j & 1); | |
5367 | tc->dcb_pfc = pfc_disabled; | |
5368 | } | |
4de2a022 JF |
5369 | |
5370 | /* Initialize default user to priority mapping, UPx->TC0 */ | |
5371 | tc = &adapter->dcb_cfg.tc_config[0]; | |
5372 | tc->path[DCB_TX_CONFIG].up_to_tc_bitmap = 0xFF; | |
5373 | tc->path[DCB_RX_CONFIG].up_to_tc_bitmap = 0xFF; | |
5374 | ||
2f90b865 AD |
5375 | adapter->dcb_cfg.bw_percentage[DCB_TX_CONFIG][0] = 100; |
5376 | adapter->dcb_cfg.bw_percentage[DCB_RX_CONFIG][0] = 100; | |
264857b8 | 5377 | adapter->dcb_cfg.pfc_mode_enable = false; |
2f90b865 | 5378 | adapter->dcb_set_bitmap = 0x00; |
3032309b | 5379 | adapter->dcbx_cap = DCB_CAP_DCBX_HOST | DCB_CAP_DCBX_VER_CEE; |
f525c6d2 JF |
5380 | memcpy(&adapter->temp_dcb_cfg, &adapter->dcb_cfg, |
5381 | sizeof(adapter->temp_dcb_cfg)); | |
2f90b865 AD |
5382 | |
5383 | #endif | |
9a799d71 AK |
5384 | |
5385 | /* default flow control settings */ | |
cd7664f6 | 5386 | hw->fc.requested_mode = ixgbe_fc_full; |
71fd570b | 5387 | hw->fc.current_mode = ixgbe_fc_full; /* init for ethtool output */ |
9da712d2 | 5388 | ixgbe_pbthresh_setup(adapter); |
2b9ade93 JB |
5389 | hw->fc.pause_time = IXGBE_DEFAULT_FCPAUSE; |
5390 | hw->fc.send_xon = true; | |
73d80953 | 5391 | hw->fc.disable_fc_autoneg = ixgbe_device_supports_autoneg_fc(hw); |
9a799d71 | 5392 | |
99d74487 | 5393 | #ifdef CONFIG_PCI_IOV |
170e8543 JK |
5394 | if (max_vfs > 0) |
5395 | e_dev_warn("Enabling SR-IOV VFs using the max_vfs module parameter is deprecated - please use the pci sysfs interface instead.\n"); | |
5396 | ||
99d74487 | 5397 | /* assign number of SR-IOV VFs */ |
170e8543 | 5398 | if (hw->mac.type != ixgbe_mac_82598EB) { |
dcc23e3a | 5399 | if (max_vfs > IXGBE_MAX_VFS_DRV_LIMIT) { |
170e8543 JK |
5400 | adapter->num_vfs = 0; |
5401 | e_dev_warn("max_vfs parameter out of range. Not assigning any SR-IOV VFs\n"); | |
5402 | } else { | |
5403 | adapter->num_vfs = max_vfs; | |
5404 | } | |
5405 | } | |
5406 | #endif /* CONFIG_PCI_IOV */ | |
99d74487 | 5407 | |
30efa5a3 | 5408 | /* enable itr by default in dynamic mode */ |
f7554a2b | 5409 | adapter->rx_itr_setting = 1; |
f7554a2b | 5410 | adapter->tx_itr_setting = 1; |
30efa5a3 | 5411 | |
30efa5a3 JB |
5412 | /* set default ring sizes */ |
5413 | adapter->tx_ring_count = IXGBE_DEFAULT_TXD; | |
5414 | adapter->rx_ring_count = IXGBE_DEFAULT_RXD; | |
5415 | ||
bd198058 | 5416 | /* set default work limits */ |
59224555 | 5417 | adapter->tx_work_limit = IXGBE_DEFAULT_TX_WORK; |
bd198058 | 5418 | |
9a799d71 | 5419 | /* initialize eeprom parameters */ |
c44ade9e | 5420 | if (ixgbe_init_eeprom_params_generic(hw)) { |
849c4542 | 5421 | e_dev_err("EEPROM initialization failed\n"); |
9a799d71 AK |
5422 | return -EIO; |
5423 | } | |
5424 | ||
2a47fa45 JF |
5425 | /* PF holds first pool slot */ |
5426 | set_bit(0, &adapter->fwd_bitmask); | |
9a799d71 AK |
5427 | set_bit(__IXGBE_DOWN, &adapter->state); |
5428 | ||
5429 | return 0; | |
5430 | } | |
5431 | ||
5432 | /** | |
5433 | * ixgbe_setup_tx_resources - allocate Tx resources (Descriptors) | |
3a581073 | 5434 | * @tx_ring: tx descriptor ring (for a specific queue) to setup |
9a799d71 AK |
5435 | * |
5436 | * Return 0 on success, negative on failure | |
5437 | **/ | |
b6ec895e | 5438 | int ixgbe_setup_tx_resources(struct ixgbe_ring *tx_ring) |
9a799d71 | 5439 | { |
b6ec895e | 5440 | struct device *dev = tx_ring->dev; |
de88eeeb | 5441 | int orig_node = dev_to_node(dev); |
ca8dfe25 | 5442 | int ring_node = -1; |
9a799d71 AK |
5443 | int size; |
5444 | ||
3a581073 | 5445 | size = sizeof(struct ixgbe_tx_buffer) * tx_ring->count; |
de88eeeb AD |
5446 | |
5447 | if (tx_ring->q_vector) | |
ca8dfe25 | 5448 | ring_node = tx_ring->q_vector->numa_node; |
de88eeeb | 5449 | |
ca8dfe25 | 5450 | tx_ring->tx_buffer_info = vzalloc_node(size, ring_node); |
1a6c14a2 | 5451 | if (!tx_ring->tx_buffer_info) |
89bf67f1 | 5452 | tx_ring->tx_buffer_info = vzalloc(size); |
e01c31a5 JB |
5453 | if (!tx_ring->tx_buffer_info) |
5454 | goto err; | |
9a799d71 | 5455 | |
827da44c JS |
5456 | u64_stats_init(&tx_ring->syncp); |
5457 | ||
9a799d71 | 5458 | /* round up to nearest 4K */ |
12207e49 | 5459 | tx_ring->size = tx_ring->count * sizeof(union ixgbe_adv_tx_desc); |
3a581073 | 5460 | tx_ring->size = ALIGN(tx_ring->size, 4096); |
9a799d71 | 5461 | |
ca8dfe25 | 5462 | set_dev_node(dev, ring_node); |
de88eeeb AD |
5463 | tx_ring->desc = dma_alloc_coherent(dev, |
5464 | tx_ring->size, | |
5465 | &tx_ring->dma, | |
5466 | GFP_KERNEL); | |
5467 | set_dev_node(dev, orig_node); | |
5468 | if (!tx_ring->desc) | |
5469 | tx_ring->desc = dma_alloc_coherent(dev, tx_ring->size, | |
5470 | &tx_ring->dma, GFP_KERNEL); | |
e01c31a5 JB |
5471 | if (!tx_ring->desc) |
5472 | goto err; | |
9a799d71 | 5473 | |
3a581073 JB |
5474 | tx_ring->next_to_use = 0; |
5475 | tx_ring->next_to_clean = 0; | |
9a799d71 | 5476 | return 0; |
e01c31a5 JB |
5477 | |
5478 | err: | |
5479 | vfree(tx_ring->tx_buffer_info); | |
5480 | tx_ring->tx_buffer_info = NULL; | |
b6ec895e | 5481 | dev_err(dev, "Unable to allocate memory for the Tx descriptor ring\n"); |
e01c31a5 | 5482 | return -ENOMEM; |
9a799d71 AK |
5483 | } |
5484 | ||
69888674 AD |
5485 | /** |
5486 | * ixgbe_setup_all_tx_resources - allocate all queues Tx resources | |
5487 | * @adapter: board private structure | |
5488 | * | |
5489 | * If this function returns with an error, then it's possible one or | |
5490 | * more of the rings is populated (while the rest are not). It is the | |
5491 | * callers duty to clean those orphaned rings. | |
5492 | * | |
5493 | * Return 0 on success, negative on failure | |
5494 | **/ | |
5495 | static int ixgbe_setup_all_tx_resources(struct ixgbe_adapter *adapter) | |
5496 | { | |
5497 | int i, err = 0; | |
5498 | ||
5499 | for (i = 0; i < adapter->num_tx_queues; i++) { | |
b6ec895e | 5500 | err = ixgbe_setup_tx_resources(adapter->tx_ring[i]); |
69888674 AD |
5501 | if (!err) |
5502 | continue; | |
de3d5b94 | 5503 | |
396e799c | 5504 | e_err(probe, "Allocation for Tx Queue %u failed\n", i); |
de3d5b94 | 5505 | goto err_setup_tx; |
69888674 AD |
5506 | } |
5507 | ||
de3d5b94 AD |
5508 | return 0; |
5509 | err_setup_tx: | |
5510 | /* rewind the index freeing the rings as we go */ | |
5511 | while (i--) | |
5512 | ixgbe_free_tx_resources(adapter->tx_ring[i]); | |
69888674 AD |
5513 | return err; |
5514 | } | |
5515 | ||
9a799d71 AK |
5516 | /** |
5517 | * ixgbe_setup_rx_resources - allocate Rx resources (Descriptors) | |
3a581073 | 5518 | * @rx_ring: rx descriptor ring (for a specific queue) to setup |
9a799d71 AK |
5519 | * |
5520 | * Returns 0 on success, negative on failure | |
5521 | **/ | |
b6ec895e | 5522 | int ixgbe_setup_rx_resources(struct ixgbe_ring *rx_ring) |
9a799d71 | 5523 | { |
b6ec895e | 5524 | struct device *dev = rx_ring->dev; |
de88eeeb | 5525 | int orig_node = dev_to_node(dev); |
ca8dfe25 | 5526 | int ring_node = -1; |
021230d4 | 5527 | int size; |
9a799d71 | 5528 | |
3a581073 | 5529 | size = sizeof(struct ixgbe_rx_buffer) * rx_ring->count; |
de88eeeb AD |
5530 | |
5531 | if (rx_ring->q_vector) | |
ca8dfe25 | 5532 | ring_node = rx_ring->q_vector->numa_node; |
de88eeeb | 5533 | |
ca8dfe25 | 5534 | rx_ring->rx_buffer_info = vzalloc_node(size, ring_node); |
1a6c14a2 | 5535 | if (!rx_ring->rx_buffer_info) |
89bf67f1 | 5536 | rx_ring->rx_buffer_info = vzalloc(size); |
b6ec895e AD |
5537 | if (!rx_ring->rx_buffer_info) |
5538 | goto err; | |
9a799d71 | 5539 | |
827da44c JS |
5540 | u64_stats_init(&rx_ring->syncp); |
5541 | ||
9a799d71 | 5542 | /* Round up to nearest 4K */ |
3a581073 JB |
5543 | rx_ring->size = rx_ring->count * sizeof(union ixgbe_adv_rx_desc); |
5544 | rx_ring->size = ALIGN(rx_ring->size, 4096); | |
9a799d71 | 5545 | |
ca8dfe25 | 5546 | set_dev_node(dev, ring_node); |
de88eeeb AD |
5547 | rx_ring->desc = dma_alloc_coherent(dev, |
5548 | rx_ring->size, | |
5549 | &rx_ring->dma, | |
5550 | GFP_KERNEL); | |
5551 | set_dev_node(dev, orig_node); | |
5552 | if (!rx_ring->desc) | |
5553 | rx_ring->desc = dma_alloc_coherent(dev, rx_ring->size, | |
5554 | &rx_ring->dma, GFP_KERNEL); | |
b6ec895e AD |
5555 | if (!rx_ring->desc) |
5556 | goto err; | |
9a799d71 | 5557 | |
3a581073 JB |
5558 | rx_ring->next_to_clean = 0; |
5559 | rx_ring->next_to_use = 0; | |
9a799d71 AK |
5560 | |
5561 | return 0; | |
b6ec895e AD |
5562 | err: |
5563 | vfree(rx_ring->rx_buffer_info); | |
5564 | rx_ring->rx_buffer_info = NULL; | |
5565 | dev_err(dev, "Unable to allocate memory for the Rx descriptor ring\n"); | |
177db6ff | 5566 | return -ENOMEM; |
9a799d71 AK |
5567 | } |
5568 | ||
69888674 AD |
5569 | /** |
5570 | * ixgbe_setup_all_rx_resources - allocate all queues Rx resources | |
5571 | * @adapter: board private structure | |
5572 | * | |
5573 | * If this function returns with an error, then it's possible one or | |
5574 | * more of the rings is populated (while the rest are not). It is the | |
5575 | * callers duty to clean those orphaned rings. | |
5576 | * | |
5577 | * Return 0 on success, negative on failure | |
5578 | **/ | |
69888674 AD |
5579 | static int ixgbe_setup_all_rx_resources(struct ixgbe_adapter *adapter) |
5580 | { | |
5581 | int i, err = 0; | |
5582 | ||
5583 | for (i = 0; i < adapter->num_rx_queues; i++) { | |
b6ec895e | 5584 | err = ixgbe_setup_rx_resources(adapter->rx_ring[i]); |
69888674 AD |
5585 | if (!err) |
5586 | continue; | |
de3d5b94 | 5587 | |
396e799c | 5588 | e_err(probe, "Allocation for Rx Queue %u failed\n", i); |
de3d5b94 | 5589 | goto err_setup_rx; |
69888674 AD |
5590 | } |
5591 | ||
7c8ae65a AD |
5592 | #ifdef IXGBE_FCOE |
5593 | err = ixgbe_setup_fcoe_ddp_resources(adapter); | |
5594 | if (!err) | |
5595 | #endif | |
5596 | return 0; | |
de3d5b94 AD |
5597 | err_setup_rx: |
5598 | /* rewind the index freeing the rings as we go */ | |
5599 | while (i--) | |
5600 | ixgbe_free_rx_resources(adapter->rx_ring[i]); | |
69888674 AD |
5601 | return err; |
5602 | } | |
5603 | ||
9a799d71 AK |
5604 | /** |
5605 | * ixgbe_free_tx_resources - Free Tx Resources per Queue | |
9a799d71 AK |
5606 | * @tx_ring: Tx descriptor ring for a specific queue |
5607 | * | |
5608 | * Free all transmit software resources | |
5609 | **/ | |
b6ec895e | 5610 | void ixgbe_free_tx_resources(struct ixgbe_ring *tx_ring) |
9a799d71 | 5611 | { |
b6ec895e | 5612 | ixgbe_clean_tx_ring(tx_ring); |
9a799d71 AK |
5613 | |
5614 | vfree(tx_ring->tx_buffer_info); | |
5615 | tx_ring->tx_buffer_info = NULL; | |
5616 | ||
b6ec895e AD |
5617 | /* if not set, then don't free */ |
5618 | if (!tx_ring->desc) | |
5619 | return; | |
5620 | ||
5621 | dma_free_coherent(tx_ring->dev, tx_ring->size, | |
5622 | tx_ring->desc, tx_ring->dma); | |
9a799d71 AK |
5623 | |
5624 | tx_ring->desc = NULL; | |
5625 | } | |
5626 | ||
5627 | /** | |
5628 | * ixgbe_free_all_tx_resources - Free Tx Resources for All Queues | |
5629 | * @adapter: board private structure | |
5630 | * | |
5631 | * Free all transmit software resources | |
5632 | **/ | |
5633 | static void ixgbe_free_all_tx_resources(struct ixgbe_adapter *adapter) | |
5634 | { | |
5635 | int i; | |
5636 | ||
5637 | for (i = 0; i < adapter->num_tx_queues; i++) | |
4a0b9ca0 | 5638 | if (adapter->tx_ring[i]->desc) |
b6ec895e | 5639 | ixgbe_free_tx_resources(adapter->tx_ring[i]); |
9a799d71 AK |
5640 | } |
5641 | ||
5642 | /** | |
b4617240 | 5643 | * ixgbe_free_rx_resources - Free Rx Resources |
9a799d71 AK |
5644 | * @rx_ring: ring to clean the resources from |
5645 | * | |
5646 | * Free all receive software resources | |
5647 | **/ | |
b6ec895e | 5648 | void ixgbe_free_rx_resources(struct ixgbe_ring *rx_ring) |
9a799d71 | 5649 | { |
b6ec895e | 5650 | ixgbe_clean_rx_ring(rx_ring); |
9a799d71 AK |
5651 | |
5652 | vfree(rx_ring->rx_buffer_info); | |
5653 | rx_ring->rx_buffer_info = NULL; | |
5654 | ||
b6ec895e AD |
5655 | /* if not set, then don't free */ |
5656 | if (!rx_ring->desc) | |
5657 | return; | |
5658 | ||
5659 | dma_free_coherent(rx_ring->dev, rx_ring->size, | |
5660 | rx_ring->desc, rx_ring->dma); | |
9a799d71 AK |
5661 | |
5662 | rx_ring->desc = NULL; | |
5663 | } | |
5664 | ||
5665 | /** | |
5666 | * ixgbe_free_all_rx_resources - Free Rx Resources for All Queues | |
5667 | * @adapter: board private structure | |
5668 | * | |
5669 | * Free all receive software resources | |
5670 | **/ | |
5671 | static void ixgbe_free_all_rx_resources(struct ixgbe_adapter *adapter) | |
5672 | { | |
5673 | int i; | |
5674 | ||
7c8ae65a AD |
5675 | #ifdef IXGBE_FCOE |
5676 | ixgbe_free_fcoe_ddp_resources(adapter); | |
5677 | ||
5678 | #endif | |
9a799d71 | 5679 | for (i = 0; i < adapter->num_rx_queues; i++) |
4a0b9ca0 | 5680 | if (adapter->rx_ring[i]->desc) |
b6ec895e | 5681 | ixgbe_free_rx_resources(adapter->rx_ring[i]); |
9a799d71 AK |
5682 | } |
5683 | ||
9a799d71 AK |
5684 | /** |
5685 | * ixgbe_change_mtu - Change the Maximum Transfer Unit | |
5686 | * @netdev: network interface device structure | |
5687 | * @new_mtu: new value for maximum frame size | |
5688 | * | |
5689 | * Returns 0 on success, negative on failure | |
5690 | **/ | |
5691 | static int ixgbe_change_mtu(struct net_device *netdev, int new_mtu) | |
5692 | { | |
5693 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
5694 | int max_frame = new_mtu + ETH_HLEN + ETH_FCS_LEN; | |
5695 | ||
42c783c5 | 5696 | /* MTU < 68 is an error and causes problems on some kernels */ |
655309e9 AD |
5697 | if ((new_mtu < 68) || (max_frame > IXGBE_MAX_JUMBO_FRAME_SIZE)) |
5698 | return -EINVAL; | |
5699 | ||
5700 | /* | |
872844dd AD |
5701 | * For 82599EB we cannot allow legacy VFs to enable their receive |
5702 | * paths when MTU greater than 1500 is configured. So display a | |
5703 | * warning that legacy VFs will be disabled. | |
655309e9 AD |
5704 | */ |
5705 | if ((adapter->flags & IXGBE_FLAG_SRIOV_ENABLED) && | |
5706 | (adapter->hw.mac.type == ixgbe_mac_82599EB) && | |
c560451c | 5707 | (max_frame > (ETH_FRAME_LEN + ETH_FCS_LEN))) |
872844dd | 5708 | e_warn(probe, "Setting MTU > 1500 will disable legacy VFs\n"); |
9a799d71 | 5709 | |
396e799c | 5710 | e_info(probe, "changing MTU from %d to %d\n", netdev->mtu, new_mtu); |
655309e9 | 5711 | |
021230d4 | 5712 | /* must set new MTU before calling down or up */ |
9a799d71 AK |
5713 | netdev->mtu = new_mtu; |
5714 | ||
d4f80882 AV |
5715 | if (netif_running(netdev)) |
5716 | ixgbe_reinit_locked(adapter); | |
9a799d71 AK |
5717 | |
5718 | return 0; | |
5719 | } | |
5720 | ||
5721 | /** | |
5722 | * ixgbe_open - Called when a network interface is made active | |
5723 | * @netdev: network interface device structure | |
5724 | * | |
5725 | * Returns 0 on success, negative value on failure | |
5726 | * | |
5727 | * The open entry point is called when a network interface is made | |
5728 | * active by the system (IFF_UP). At this point all resources needed | |
5729 | * for transmit and receive operations are allocated, the interrupt | |
5730 | * handler is registered with the OS, the watchdog timer is started, | |
5731 | * and the stack is notified that the interface is ready. | |
5732 | **/ | |
5733 | static int ixgbe_open(struct net_device *netdev) | |
5734 | { | |
5735 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
961fac88 | 5736 | struct ixgbe_hw *hw = &adapter->hw; |
2a47fa45 | 5737 | int err, queues; |
4bebfaa5 AK |
5738 | |
5739 | /* disallow open during test */ | |
5740 | if (test_bit(__IXGBE_TESTING, &adapter->state)) | |
5741 | return -EBUSY; | |
9a799d71 | 5742 | |
54386467 JB |
5743 | netif_carrier_off(netdev); |
5744 | ||
9a799d71 AK |
5745 | /* allocate transmit descriptors */ |
5746 | err = ixgbe_setup_all_tx_resources(adapter); | |
5747 | if (err) | |
5748 | goto err_setup_tx; | |
5749 | ||
9a799d71 AK |
5750 | /* allocate receive descriptors */ |
5751 | err = ixgbe_setup_all_rx_resources(adapter); | |
5752 | if (err) | |
5753 | goto err_setup_rx; | |
5754 | ||
5755 | ixgbe_configure(adapter); | |
5756 | ||
021230d4 | 5757 | err = ixgbe_request_irq(adapter); |
9a799d71 AK |
5758 | if (err) |
5759 | goto err_req_irq; | |
5760 | ||
ac802f5d | 5761 | /* Notify the stack of the actual queue counts. */ |
2a47fa45 JF |
5762 | if (adapter->num_rx_pools > 1) |
5763 | queues = adapter->num_rx_queues_per_pool; | |
5764 | else | |
5765 | queues = adapter->num_tx_queues; | |
5766 | ||
5767 | err = netif_set_real_num_tx_queues(netdev, queues); | |
ac802f5d AD |
5768 | if (err) |
5769 | goto err_set_queues; | |
5770 | ||
2a47fa45 JF |
5771 | if (adapter->num_rx_pools > 1 && |
5772 | adapter->num_rx_queues > IXGBE_MAX_L2A_QUEUES) | |
5773 | queues = IXGBE_MAX_L2A_QUEUES; | |
5774 | else | |
5775 | queues = adapter->num_rx_queues; | |
5776 | err = netif_set_real_num_rx_queues(netdev, queues); | |
ac802f5d AD |
5777 | if (err) |
5778 | goto err_set_queues; | |
5779 | ||
1a71ab24 | 5780 | ixgbe_ptp_init(adapter); |
1a71ab24 | 5781 | |
c7ccde0f | 5782 | ixgbe_up_complete(adapter); |
9a799d71 | 5783 | |
67359c3c MR |
5784 | ixgbe_clear_vxlan_port(adapter); |
5785 | #ifdef CONFIG_IXGBE_VXLAN | |
3f207800 | 5786 | vxlan_get_rx_port(netdev); |
3f207800 | 5787 | #endif |
67359c3c | 5788 | |
9a799d71 AK |
5789 | return 0; |
5790 | ||
ac802f5d AD |
5791 | err_set_queues: |
5792 | ixgbe_free_irq(adapter); | |
9a799d71 | 5793 | err_req_irq: |
a20a1199 | 5794 | ixgbe_free_all_rx_resources(adapter); |
961fac88 DS |
5795 | if (hw->phy.ops.set_phy_power && !adapter->wol) |
5796 | hw->phy.ops.set_phy_power(&adapter->hw, false); | |
de3d5b94 | 5797 | err_setup_rx: |
a20a1199 | 5798 | ixgbe_free_all_tx_resources(adapter); |
de3d5b94 | 5799 | err_setup_tx: |
9a799d71 AK |
5800 | ixgbe_reset(adapter); |
5801 | ||
5802 | return err; | |
5803 | } | |
5804 | ||
a0cccce2 JK |
5805 | static void ixgbe_close_suspend(struct ixgbe_adapter *adapter) |
5806 | { | |
5807 | ixgbe_ptp_suspend(adapter); | |
5808 | ||
6ac74394 DS |
5809 | if (adapter->hw.phy.ops.enter_lplu) { |
5810 | adapter->hw.phy.reset_disable = true; | |
5811 | ixgbe_down(adapter); | |
5812 | adapter->hw.phy.ops.enter_lplu(&adapter->hw); | |
5813 | adapter->hw.phy.reset_disable = false; | |
5814 | } else { | |
5815 | ixgbe_down(adapter); | |
5816 | } | |
5817 | ||
a0cccce2 JK |
5818 | ixgbe_free_irq(adapter); |
5819 | ||
5820 | ixgbe_free_all_tx_resources(adapter); | |
5821 | ixgbe_free_all_rx_resources(adapter); | |
5822 | } | |
5823 | ||
9a799d71 AK |
5824 | /** |
5825 | * ixgbe_close - Disables a network interface | |
5826 | * @netdev: network interface device structure | |
5827 | * | |
5828 | * Returns 0, this is not allowed to fail | |
5829 | * | |
5830 | * The close entry point is called when an interface is de-activated | |
5831 | * by the OS. The hardware is still under the drivers control, but | |
5832 | * needs to be disabled. A global MAC reset is issued to stop the | |
5833 | * hardware, and all transmit and receive resources are freed. | |
5834 | **/ | |
5835 | static int ixgbe_close(struct net_device *netdev) | |
5836 | { | |
5837 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
9a799d71 | 5838 | |
1a71ab24 | 5839 | ixgbe_ptp_stop(adapter); |
1a71ab24 | 5840 | |
a0cccce2 | 5841 | ixgbe_close_suspend(adapter); |
9a799d71 | 5842 | |
e4911d57 AD |
5843 | ixgbe_fdir_filter_exit(adapter); |
5844 | ||
5eba3699 | 5845 | ixgbe_release_hw_control(adapter); |
9a799d71 AK |
5846 | |
5847 | return 0; | |
5848 | } | |
5849 | ||
b3c8b4ba AD |
5850 | #ifdef CONFIG_PM |
5851 | static int ixgbe_resume(struct pci_dev *pdev) | |
5852 | { | |
c60fbb00 AD |
5853 | struct ixgbe_adapter *adapter = pci_get_drvdata(pdev); |
5854 | struct net_device *netdev = adapter->netdev; | |
b3c8b4ba AD |
5855 | u32 err; |
5856 | ||
0391bbe3 | 5857 | adapter->hw.hw_addr = adapter->io_addr; |
b3c8b4ba AD |
5858 | pci_set_power_state(pdev, PCI_D0); |
5859 | pci_restore_state(pdev); | |
656ab817 DS |
5860 | /* |
5861 | * pci_restore_state clears dev->state_saved so call | |
5862 | * pci_save_state to restore it. | |
5863 | */ | |
5864 | pci_save_state(pdev); | |
9ce77666 | 5865 | |
5866 | err = pci_enable_device_mem(pdev); | |
b3c8b4ba | 5867 | if (err) { |
849c4542 | 5868 | e_dev_err("Cannot enable PCI device from suspend\n"); |
b3c8b4ba AD |
5869 | return err; |
5870 | } | |
4e857c58 | 5871 | smp_mb__before_atomic(); |
41c62843 | 5872 | clear_bit(__IXGBE_DISABLED, &adapter->state); |
b3c8b4ba AD |
5873 | pci_set_master(pdev); |
5874 | ||
dd4d8ca6 | 5875 | pci_wake_from_d3(pdev, false); |
b3c8b4ba | 5876 | |
b3c8b4ba AD |
5877 | ixgbe_reset(adapter); |
5878 | ||
495dce12 WJP |
5879 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_WUS, ~0); |
5880 | ||
ac802f5d AD |
5881 | rtnl_lock(); |
5882 | err = ixgbe_init_interrupt_scheme(adapter); | |
5883 | if (!err && netif_running(netdev)) | |
c60fbb00 | 5884 | err = ixgbe_open(netdev); |
ac802f5d AD |
5885 | |
5886 | rtnl_unlock(); | |
5887 | ||
5888 | if (err) | |
5889 | return err; | |
b3c8b4ba AD |
5890 | |
5891 | netif_device_attach(netdev); | |
5892 | ||
5893 | return 0; | |
5894 | } | |
b3c8b4ba | 5895 | #endif /* CONFIG_PM */ |
9d8d05ae RW |
5896 | |
5897 | static int __ixgbe_shutdown(struct pci_dev *pdev, bool *enable_wake) | |
b3c8b4ba | 5898 | { |
c60fbb00 AD |
5899 | struct ixgbe_adapter *adapter = pci_get_drvdata(pdev); |
5900 | struct net_device *netdev = adapter->netdev; | |
e8e26350 PW |
5901 | struct ixgbe_hw *hw = &adapter->hw; |
5902 | u32 ctrl, fctrl; | |
5903 | u32 wufc = adapter->wol; | |
b3c8b4ba AD |
5904 | #ifdef CONFIG_PM |
5905 | int retval = 0; | |
5906 | #endif | |
5907 | ||
5908 | netif_device_detach(netdev); | |
5909 | ||
499ab5cc | 5910 | rtnl_lock(); |
a0cccce2 JK |
5911 | if (netif_running(netdev)) |
5912 | ixgbe_close_suspend(adapter); | |
499ab5cc | 5913 | rtnl_unlock(); |
b3c8b4ba | 5914 | |
5f5ae6fc AD |
5915 | ixgbe_clear_interrupt_scheme(adapter); |
5916 | ||
b3c8b4ba AD |
5917 | #ifdef CONFIG_PM |
5918 | retval = pci_save_state(pdev); | |
5919 | if (retval) | |
5920 | return retval; | |
4df10466 | 5921 | |
b3c8b4ba | 5922 | #endif |
f4f1040a JK |
5923 | if (hw->mac.ops.stop_link_on_d3) |
5924 | hw->mac.ops.stop_link_on_d3(hw); | |
5925 | ||
e8e26350 PW |
5926 | if (wufc) { |
5927 | ixgbe_set_rx_mode(netdev); | |
b3c8b4ba | 5928 | |
ec74a471 ET |
5929 | /* enable the optics for 82599 SFP+ fiber as we can WoL */ |
5930 | if (hw->mac.ops.enable_tx_laser) | |
c509e754 DS |
5931 | hw->mac.ops.enable_tx_laser(hw); |
5932 | ||
e8e26350 PW |
5933 | /* turn on all-multi mode if wake on multicast is enabled */ |
5934 | if (wufc & IXGBE_WUFC_MC) { | |
5935 | fctrl = IXGBE_READ_REG(hw, IXGBE_FCTRL); | |
5936 | fctrl |= IXGBE_FCTRL_MPE; | |
5937 | IXGBE_WRITE_REG(hw, IXGBE_FCTRL, fctrl); | |
5938 | } | |
5939 | ||
5940 | ctrl = IXGBE_READ_REG(hw, IXGBE_CTRL); | |
5941 | ctrl |= IXGBE_CTRL_GIO_DIS; | |
5942 | IXGBE_WRITE_REG(hw, IXGBE_CTRL, ctrl); | |
5943 | ||
5944 | IXGBE_WRITE_REG(hw, IXGBE_WUFC, wufc); | |
5945 | } else { | |
5946 | IXGBE_WRITE_REG(hw, IXGBE_WUC, 0); | |
5947 | IXGBE_WRITE_REG(hw, IXGBE_WUFC, 0); | |
5948 | } | |
5949 | ||
bd508178 AD |
5950 | switch (hw->mac.type) { |
5951 | case ixgbe_mac_82598EB: | |
dd4d8ca6 | 5952 | pci_wake_from_d3(pdev, false); |
bd508178 AD |
5953 | break; |
5954 | case ixgbe_mac_82599EB: | |
b93a2226 | 5955 | case ixgbe_mac_X540: |
9a75a1ac DS |
5956 | case ixgbe_mac_X550: |
5957 | case ixgbe_mac_X550EM_x: | |
bd508178 AD |
5958 | pci_wake_from_d3(pdev, !!wufc); |
5959 | break; | |
5960 | default: | |
5961 | break; | |
5962 | } | |
b3c8b4ba | 5963 | |
9d8d05ae | 5964 | *enable_wake = !!wufc; |
961fac88 DS |
5965 | if (hw->phy.ops.set_phy_power && !*enable_wake) |
5966 | hw->phy.ops.set_phy_power(hw, false); | |
9d8d05ae | 5967 | |
b3c8b4ba AD |
5968 | ixgbe_release_hw_control(adapter); |
5969 | ||
41c62843 MR |
5970 | if (!test_and_set_bit(__IXGBE_DISABLED, &adapter->state)) |
5971 | pci_disable_device(pdev); | |
b3c8b4ba | 5972 | |
9d8d05ae RW |
5973 | return 0; |
5974 | } | |
5975 | ||
5976 | #ifdef CONFIG_PM | |
5977 | static int ixgbe_suspend(struct pci_dev *pdev, pm_message_t state) | |
5978 | { | |
5979 | int retval; | |
5980 | bool wake; | |
5981 | ||
5982 | retval = __ixgbe_shutdown(pdev, &wake); | |
5983 | if (retval) | |
5984 | return retval; | |
5985 | ||
5986 | if (wake) { | |
5987 | pci_prepare_to_sleep(pdev); | |
5988 | } else { | |
5989 | pci_wake_from_d3(pdev, false); | |
5990 | pci_set_power_state(pdev, PCI_D3hot); | |
5991 | } | |
b3c8b4ba AD |
5992 | |
5993 | return 0; | |
5994 | } | |
9d8d05ae | 5995 | #endif /* CONFIG_PM */ |
b3c8b4ba AD |
5996 | |
5997 | static void ixgbe_shutdown(struct pci_dev *pdev) | |
5998 | { | |
9d8d05ae RW |
5999 | bool wake; |
6000 | ||
6001 | __ixgbe_shutdown(pdev, &wake); | |
6002 | ||
6003 | if (system_state == SYSTEM_POWER_OFF) { | |
6004 | pci_wake_from_d3(pdev, wake); | |
6005 | pci_set_power_state(pdev, PCI_D3hot); | |
6006 | } | |
b3c8b4ba AD |
6007 | } |
6008 | ||
9a799d71 AK |
6009 | /** |
6010 | * ixgbe_update_stats - Update the board statistics counters. | |
6011 | * @adapter: board private structure | |
6012 | **/ | |
6013 | void ixgbe_update_stats(struct ixgbe_adapter *adapter) | |
6014 | { | |
2d86f139 | 6015 | struct net_device *netdev = adapter->netdev; |
9a799d71 | 6016 | struct ixgbe_hw *hw = &adapter->hw; |
5b7da515 | 6017 | struct ixgbe_hw_stats *hwstats = &adapter->stats; |
6f11eef7 AV |
6018 | u64 total_mpc = 0; |
6019 | u32 i, missed_rx = 0, mpc, bprc, lxon, lxoff, xon_off_tot; | |
5b7da515 AD |
6020 | u64 non_eop_descs = 0, restart_queue = 0, tx_busy = 0; |
6021 | u64 alloc_rx_page_failed = 0, alloc_rx_buff_failed = 0; | |
8a0da21b | 6022 | u64 bytes = 0, packets = 0, hw_csum_rx_error = 0; |
9a799d71 | 6023 | |
d08935c2 DS |
6024 | if (test_bit(__IXGBE_DOWN, &adapter->state) || |
6025 | test_bit(__IXGBE_RESETTING, &adapter->state)) | |
6026 | return; | |
6027 | ||
94b982b2 | 6028 | if (adapter->flags2 & IXGBE_FLAG2_RSC_ENABLED) { |
f8212f97 | 6029 | u64 rsc_count = 0; |
94b982b2 | 6030 | u64 rsc_flush = 0; |
94b982b2 | 6031 | for (i = 0; i < adapter->num_rx_queues; i++) { |
5b7da515 AD |
6032 | rsc_count += adapter->rx_ring[i]->rx_stats.rsc_count; |
6033 | rsc_flush += adapter->rx_ring[i]->rx_stats.rsc_flush; | |
94b982b2 MC |
6034 | } |
6035 | adapter->rsc_total_count = rsc_count; | |
6036 | adapter->rsc_total_flush = rsc_flush; | |
d51019a4 PW |
6037 | } |
6038 | ||
5b7da515 AD |
6039 | for (i = 0; i < adapter->num_rx_queues; i++) { |
6040 | struct ixgbe_ring *rx_ring = adapter->rx_ring[i]; | |
6041 | non_eop_descs += rx_ring->rx_stats.non_eop_descs; | |
6042 | alloc_rx_page_failed += rx_ring->rx_stats.alloc_rx_page_failed; | |
6043 | alloc_rx_buff_failed += rx_ring->rx_stats.alloc_rx_buff_failed; | |
8a0da21b | 6044 | hw_csum_rx_error += rx_ring->rx_stats.csum_err; |
5b7da515 AD |
6045 | bytes += rx_ring->stats.bytes; |
6046 | packets += rx_ring->stats.packets; | |
6047 | } | |
6048 | adapter->non_eop_descs = non_eop_descs; | |
6049 | adapter->alloc_rx_page_failed = alloc_rx_page_failed; | |
6050 | adapter->alloc_rx_buff_failed = alloc_rx_buff_failed; | |
8a0da21b | 6051 | adapter->hw_csum_rx_error = hw_csum_rx_error; |
5b7da515 AD |
6052 | netdev->stats.rx_bytes = bytes; |
6053 | netdev->stats.rx_packets = packets; | |
6054 | ||
6055 | bytes = 0; | |
6056 | packets = 0; | |
7ca3bc58 | 6057 | /* gather some stats to the adapter struct that are per queue */ |
5b7da515 AD |
6058 | for (i = 0; i < adapter->num_tx_queues; i++) { |
6059 | struct ixgbe_ring *tx_ring = adapter->tx_ring[i]; | |
6060 | restart_queue += tx_ring->tx_stats.restart_queue; | |
6061 | tx_busy += tx_ring->tx_stats.tx_busy; | |
6062 | bytes += tx_ring->stats.bytes; | |
6063 | packets += tx_ring->stats.packets; | |
6064 | } | |
eb985f09 | 6065 | adapter->restart_queue = restart_queue; |
5b7da515 AD |
6066 | adapter->tx_busy = tx_busy; |
6067 | netdev->stats.tx_bytes = bytes; | |
6068 | netdev->stats.tx_packets = packets; | |
7ca3bc58 | 6069 | |
7ca647bd | 6070 | hwstats->crcerrs += IXGBE_READ_REG(hw, IXGBE_CRCERRS); |
1a70db4b ET |
6071 | |
6072 | /* 8 register reads */ | |
6f11eef7 AV |
6073 | for (i = 0; i < 8; i++) { |
6074 | /* for packet buffers not used, the register should read 0 */ | |
6075 | mpc = IXGBE_READ_REG(hw, IXGBE_MPC(i)); | |
6076 | missed_rx += mpc; | |
7ca647bd JP |
6077 | hwstats->mpc[i] += mpc; |
6078 | total_mpc += hwstats->mpc[i]; | |
1a70db4b ET |
6079 | hwstats->pxontxc[i] += IXGBE_READ_REG(hw, IXGBE_PXONTXC(i)); |
6080 | hwstats->pxofftxc[i] += IXGBE_READ_REG(hw, IXGBE_PXOFFTXC(i)); | |
bd508178 AD |
6081 | switch (hw->mac.type) { |
6082 | case ixgbe_mac_82598EB: | |
1a70db4b ET |
6083 | hwstats->rnbc[i] += IXGBE_READ_REG(hw, IXGBE_RNBC(i)); |
6084 | hwstats->qbtc[i] += IXGBE_READ_REG(hw, IXGBE_QBTC(i)); | |
6085 | hwstats->qbrc[i] += IXGBE_READ_REG(hw, IXGBE_QBRC(i)); | |
7ca647bd JP |
6086 | hwstats->pxonrxc[i] += |
6087 | IXGBE_READ_REG(hw, IXGBE_PXONRXC(i)); | |
bd508178 AD |
6088 | break; |
6089 | case ixgbe_mac_82599EB: | |
b93a2226 | 6090 | case ixgbe_mac_X540: |
9a75a1ac DS |
6091 | case ixgbe_mac_X550: |
6092 | case ixgbe_mac_X550EM_x: | |
bd508178 AD |
6093 | hwstats->pxonrxc[i] += |
6094 | IXGBE_READ_REG(hw, IXGBE_PXONRXCNT(i)); | |
bd508178 AD |
6095 | break; |
6096 | default: | |
6097 | break; | |
e8e26350 | 6098 | } |
6f11eef7 | 6099 | } |
1a70db4b ET |
6100 | |
6101 | /*16 register reads */ | |
6102 | for (i = 0; i < 16; i++) { | |
6103 | hwstats->qptc[i] += IXGBE_READ_REG(hw, IXGBE_QPTC(i)); | |
6104 | hwstats->qprc[i] += IXGBE_READ_REG(hw, IXGBE_QPRC(i)); | |
6105 | if ((hw->mac.type == ixgbe_mac_82599EB) || | |
9a75a1ac DS |
6106 | (hw->mac.type == ixgbe_mac_X540) || |
6107 | (hw->mac.type == ixgbe_mac_X550) || | |
6108 | (hw->mac.type == ixgbe_mac_X550EM_x)) { | |
1a70db4b ET |
6109 | hwstats->qbtc[i] += IXGBE_READ_REG(hw, IXGBE_QBTC_L(i)); |
6110 | IXGBE_READ_REG(hw, IXGBE_QBTC_H(i)); /* to clear */ | |
6111 | hwstats->qbrc[i] += IXGBE_READ_REG(hw, IXGBE_QBRC_L(i)); | |
6112 | IXGBE_READ_REG(hw, IXGBE_QBRC_H(i)); /* to clear */ | |
6113 | } | |
6114 | } | |
6115 | ||
7ca647bd | 6116 | hwstats->gprc += IXGBE_READ_REG(hw, IXGBE_GPRC); |
6f11eef7 | 6117 | /* work around hardware counting issue */ |
7ca647bd | 6118 | hwstats->gprc -= missed_rx; |
6f11eef7 | 6119 | |
c84d324c JF |
6120 | ixgbe_update_xoff_received(adapter); |
6121 | ||
6f11eef7 | 6122 | /* 82598 hardware only has a 32 bit counter in the high register */ |
bd508178 AD |
6123 | switch (hw->mac.type) { |
6124 | case ixgbe_mac_82598EB: | |
6125 | hwstats->lxonrxc += IXGBE_READ_REG(hw, IXGBE_LXONRXC); | |
bd508178 AD |
6126 | hwstats->gorc += IXGBE_READ_REG(hw, IXGBE_GORCH); |
6127 | hwstats->gotc += IXGBE_READ_REG(hw, IXGBE_GOTCH); | |
6128 | hwstats->tor += IXGBE_READ_REG(hw, IXGBE_TORH); | |
6129 | break; | |
b93a2226 | 6130 | case ixgbe_mac_X540: |
9a75a1ac DS |
6131 | case ixgbe_mac_X550: |
6132 | case ixgbe_mac_X550EM_x: | |
6133 | /* OS2BMC stats are X540 and later */ | |
58f6bcf9 ET |
6134 | hwstats->o2bgptc += IXGBE_READ_REG(hw, IXGBE_O2BGPTC); |
6135 | hwstats->o2bspc += IXGBE_READ_REG(hw, IXGBE_O2BSPC); | |
6136 | hwstats->b2ospc += IXGBE_READ_REG(hw, IXGBE_B2OSPC); | |
6137 | hwstats->b2ogprc += IXGBE_READ_REG(hw, IXGBE_B2OGPRC); | |
6138 | case ixgbe_mac_82599EB: | |
a4d4f629 AD |
6139 | for (i = 0; i < 16; i++) |
6140 | adapter->hw_rx_no_dma_resources += | |
6141 | IXGBE_READ_REG(hw, IXGBE_QPRDC(i)); | |
7ca647bd | 6142 | hwstats->gorc += IXGBE_READ_REG(hw, IXGBE_GORCL); |
bd508178 | 6143 | IXGBE_READ_REG(hw, IXGBE_GORCH); /* to clear */ |
7ca647bd | 6144 | hwstats->gotc += IXGBE_READ_REG(hw, IXGBE_GOTCL); |
bd508178 | 6145 | IXGBE_READ_REG(hw, IXGBE_GOTCH); /* to clear */ |
7ca647bd | 6146 | hwstats->tor += IXGBE_READ_REG(hw, IXGBE_TORL); |
bd508178 | 6147 | IXGBE_READ_REG(hw, IXGBE_TORH); /* to clear */ |
7ca647bd | 6148 | hwstats->lxonrxc += IXGBE_READ_REG(hw, IXGBE_LXONRXCNT); |
7ca647bd JP |
6149 | hwstats->fdirmatch += IXGBE_READ_REG(hw, IXGBE_FDIRMATCH); |
6150 | hwstats->fdirmiss += IXGBE_READ_REG(hw, IXGBE_FDIRMISS); | |
6d45522c | 6151 | #ifdef IXGBE_FCOE |
7ca647bd JP |
6152 | hwstats->fccrc += IXGBE_READ_REG(hw, IXGBE_FCCRC); |
6153 | hwstats->fcoerpdc += IXGBE_READ_REG(hw, IXGBE_FCOERPDC); | |
6154 | hwstats->fcoeprc += IXGBE_READ_REG(hw, IXGBE_FCOEPRC); | |
6155 | hwstats->fcoeptc += IXGBE_READ_REG(hw, IXGBE_FCOEPTC); | |
6156 | hwstats->fcoedwrc += IXGBE_READ_REG(hw, IXGBE_FCOEDWRC); | |
6157 | hwstats->fcoedwtc += IXGBE_READ_REG(hw, IXGBE_FCOEDWTC); | |
7b859ebc | 6158 | /* Add up per cpu counters for total ddp aloc fail */ |
5a1ee270 AD |
6159 | if (adapter->fcoe.ddp_pool) { |
6160 | struct ixgbe_fcoe *fcoe = &adapter->fcoe; | |
6161 | struct ixgbe_fcoe_ddp_pool *ddp_pool; | |
6162 | unsigned int cpu; | |
6163 | u64 noddp = 0, noddp_ext_buff = 0; | |
7b859ebc | 6164 | for_each_possible_cpu(cpu) { |
5a1ee270 AD |
6165 | ddp_pool = per_cpu_ptr(fcoe->ddp_pool, cpu); |
6166 | noddp += ddp_pool->noddp; | |
6167 | noddp_ext_buff += ddp_pool->noddp_ext_buff; | |
7b859ebc | 6168 | } |
5a1ee270 AD |
6169 | hwstats->fcoe_noddp = noddp; |
6170 | hwstats->fcoe_noddp_ext_buff = noddp_ext_buff; | |
7b859ebc | 6171 | } |
6d45522c | 6172 | #endif /* IXGBE_FCOE */ |
bd508178 AD |
6173 | break; |
6174 | default: | |
6175 | break; | |
e8e26350 | 6176 | } |
9a799d71 | 6177 | bprc = IXGBE_READ_REG(hw, IXGBE_BPRC); |
7ca647bd JP |
6178 | hwstats->bprc += bprc; |
6179 | hwstats->mprc += IXGBE_READ_REG(hw, IXGBE_MPRC); | |
e8e26350 | 6180 | if (hw->mac.type == ixgbe_mac_82598EB) |
7ca647bd JP |
6181 | hwstats->mprc -= bprc; |
6182 | hwstats->roc += IXGBE_READ_REG(hw, IXGBE_ROC); | |
6183 | hwstats->prc64 += IXGBE_READ_REG(hw, IXGBE_PRC64); | |
6184 | hwstats->prc127 += IXGBE_READ_REG(hw, IXGBE_PRC127); | |
6185 | hwstats->prc255 += IXGBE_READ_REG(hw, IXGBE_PRC255); | |
6186 | hwstats->prc511 += IXGBE_READ_REG(hw, IXGBE_PRC511); | |
6187 | hwstats->prc1023 += IXGBE_READ_REG(hw, IXGBE_PRC1023); | |
6188 | hwstats->prc1522 += IXGBE_READ_REG(hw, IXGBE_PRC1522); | |
6189 | hwstats->rlec += IXGBE_READ_REG(hw, IXGBE_RLEC); | |
6f11eef7 | 6190 | lxon = IXGBE_READ_REG(hw, IXGBE_LXONTXC); |
7ca647bd | 6191 | hwstats->lxontxc += lxon; |
6f11eef7 | 6192 | lxoff = IXGBE_READ_REG(hw, IXGBE_LXOFFTXC); |
7ca647bd | 6193 | hwstats->lxofftxc += lxoff; |
7ca647bd JP |
6194 | hwstats->gptc += IXGBE_READ_REG(hw, IXGBE_GPTC); |
6195 | hwstats->mptc += IXGBE_READ_REG(hw, IXGBE_MPTC); | |
6f11eef7 AV |
6196 | /* |
6197 | * 82598 errata - tx of flow control packets is included in tx counters | |
6198 | */ | |
6199 | xon_off_tot = lxon + lxoff; | |
7ca647bd JP |
6200 | hwstats->gptc -= xon_off_tot; |
6201 | hwstats->mptc -= xon_off_tot; | |
6202 | hwstats->gotc -= (xon_off_tot * (ETH_ZLEN + ETH_FCS_LEN)); | |
6203 | hwstats->ruc += IXGBE_READ_REG(hw, IXGBE_RUC); | |
6204 | hwstats->rfc += IXGBE_READ_REG(hw, IXGBE_RFC); | |
6205 | hwstats->rjc += IXGBE_READ_REG(hw, IXGBE_RJC); | |
6206 | hwstats->tpr += IXGBE_READ_REG(hw, IXGBE_TPR); | |
6207 | hwstats->ptc64 += IXGBE_READ_REG(hw, IXGBE_PTC64); | |
6208 | hwstats->ptc64 -= xon_off_tot; | |
6209 | hwstats->ptc127 += IXGBE_READ_REG(hw, IXGBE_PTC127); | |
6210 | hwstats->ptc255 += IXGBE_READ_REG(hw, IXGBE_PTC255); | |
6211 | hwstats->ptc511 += IXGBE_READ_REG(hw, IXGBE_PTC511); | |
6212 | hwstats->ptc1023 += IXGBE_READ_REG(hw, IXGBE_PTC1023); | |
6213 | hwstats->ptc1522 += IXGBE_READ_REG(hw, IXGBE_PTC1522); | |
6214 | hwstats->bptc += IXGBE_READ_REG(hw, IXGBE_BPTC); | |
9a799d71 AK |
6215 | |
6216 | /* Fill out the OS statistics structure */ | |
7ca647bd | 6217 | netdev->stats.multicast = hwstats->mprc; |
9a799d71 AK |
6218 | |
6219 | /* Rx Errors */ | |
7ca647bd | 6220 | netdev->stats.rx_errors = hwstats->crcerrs + hwstats->rlec; |
2d86f139 | 6221 | netdev->stats.rx_dropped = 0; |
7ca647bd JP |
6222 | netdev->stats.rx_length_errors = hwstats->rlec; |
6223 | netdev->stats.rx_crc_errors = hwstats->crcerrs; | |
2d86f139 | 6224 | netdev->stats.rx_missed_errors = total_mpc; |
9a799d71 AK |
6225 | } |
6226 | ||
6227 | /** | |
d034acf1 | 6228 | * ixgbe_fdir_reinit_subtask - worker thread to reinit FDIR filter table |
49ce9c2c | 6229 | * @adapter: pointer to the device adapter structure |
9a799d71 | 6230 | **/ |
d034acf1 | 6231 | static void ixgbe_fdir_reinit_subtask(struct ixgbe_adapter *adapter) |
9a799d71 | 6232 | { |
cf8280ee | 6233 | struct ixgbe_hw *hw = &adapter->hw; |
fe49f04a | 6234 | int i; |
cf8280ee | 6235 | |
d034acf1 AD |
6236 | if (!(adapter->flags2 & IXGBE_FLAG2_FDIR_REQUIRES_REINIT)) |
6237 | return; | |
6238 | ||
6239 | adapter->flags2 &= ~IXGBE_FLAG2_FDIR_REQUIRES_REINIT; | |
22d5a71b | 6240 | |
d034acf1 | 6241 | /* if interface is down do nothing */ |
fe49f04a | 6242 | if (test_bit(__IXGBE_DOWN, &adapter->state)) |
d034acf1 AD |
6243 | return; |
6244 | ||
6245 | /* do nothing if we are not using signature filters */ | |
6246 | if (!(adapter->flags & IXGBE_FLAG_FDIR_HASH_CAPABLE)) | |
6247 | return; | |
6248 | ||
6249 | adapter->fdir_overflow++; | |
6250 | ||
93c52dd0 AD |
6251 | if (ixgbe_reinit_fdir_tables_82599(hw) == 0) { |
6252 | for (i = 0; i < adapter->num_tx_queues; i++) | |
6253 | set_bit(__IXGBE_TX_FDIR_INIT_DONE, | |
e7cf745b | 6254 | &(adapter->tx_ring[i]->state)); |
d034acf1 AD |
6255 | /* re-enable flow director interrupts */ |
6256 | IXGBE_WRITE_REG(hw, IXGBE_EIMS, IXGBE_EIMS_FLOW_DIR); | |
93c52dd0 AD |
6257 | } else { |
6258 | e_err(probe, "failed to finish FDIR re-initialization, " | |
6259 | "ignored adding FDIR ATR filters\n"); | |
6260 | } | |
93c52dd0 AD |
6261 | } |
6262 | ||
6263 | /** | |
6264 | * ixgbe_check_hang_subtask - check for hung queues and dropped interrupts | |
49ce9c2c | 6265 | * @adapter: pointer to the device adapter structure |
93c52dd0 AD |
6266 | * |
6267 | * This function serves two purposes. First it strobes the interrupt lines | |
52f33af8 | 6268 | * in order to make certain interrupts are occurring. Secondly it sets the |
93c52dd0 | 6269 | * bits needed to check for TX hangs. As a result we should immediately |
52f33af8 | 6270 | * determine if a hang has occurred. |
93c52dd0 AD |
6271 | */ |
6272 | static void ixgbe_check_hang_subtask(struct ixgbe_adapter *adapter) | |
9a799d71 | 6273 | { |
cf8280ee | 6274 | struct ixgbe_hw *hw = &adapter->hw; |
fe49f04a AD |
6275 | u64 eics = 0; |
6276 | int i; | |
cf8280ee | 6277 | |
09f40aed | 6278 | /* If we're down, removing or resetting, just bail */ |
93c52dd0 | 6279 | if (test_bit(__IXGBE_DOWN, &adapter->state) || |
09f40aed | 6280 | test_bit(__IXGBE_REMOVING, &adapter->state) || |
93c52dd0 AD |
6281 | test_bit(__IXGBE_RESETTING, &adapter->state)) |
6282 | return; | |
22d5a71b | 6283 | |
93c52dd0 AD |
6284 | /* Force detection of hung controller */ |
6285 | if (netif_carrier_ok(adapter->netdev)) { | |
6286 | for (i = 0; i < adapter->num_tx_queues; i++) | |
6287 | set_check_for_tx_hang(adapter->tx_ring[i]); | |
6288 | } | |
22d5a71b | 6289 | |
fe49f04a AD |
6290 | if (!(adapter->flags & IXGBE_FLAG_MSIX_ENABLED)) { |
6291 | /* | |
6292 | * for legacy and MSI interrupts don't set any bits | |
6293 | * that are enabled for EIAM, because this operation | |
6294 | * would set *both* EIMS and EICS for any bit in EIAM | |
6295 | */ | |
6296 | IXGBE_WRITE_REG(hw, IXGBE_EICS, | |
6297 | (IXGBE_EICS_TCP_TIMER | IXGBE_EICS_OTHER)); | |
93c52dd0 AD |
6298 | } else { |
6299 | /* get one bit for every active tx/rx interrupt vector */ | |
49c7ffbe | 6300 | for (i = 0; i < adapter->num_q_vectors; i++) { |
93c52dd0 | 6301 | struct ixgbe_q_vector *qv = adapter->q_vector[i]; |
efe3d3c8 | 6302 | if (qv->rx.ring || qv->tx.ring) |
93c52dd0 AD |
6303 | eics |= ((u64)1 << i); |
6304 | } | |
cf8280ee | 6305 | } |
9a799d71 | 6306 | |
93c52dd0 | 6307 | /* Cause software interrupt to ensure rings are cleaned */ |
fe49f04a | 6308 | ixgbe_irq_rearm_queues(adapter, eics); |
cf8280ee JB |
6309 | } |
6310 | ||
e8e26350 | 6311 | /** |
93c52dd0 | 6312 | * ixgbe_watchdog_update_link - update the link status |
49ce9c2c BH |
6313 | * @adapter: pointer to the device adapter structure |
6314 | * @link_speed: pointer to a u32 to store the link_speed | |
e8e26350 | 6315 | **/ |
93c52dd0 | 6316 | static void ixgbe_watchdog_update_link(struct ixgbe_adapter *adapter) |
e8e26350 | 6317 | { |
e8e26350 | 6318 | struct ixgbe_hw *hw = &adapter->hw; |
93c52dd0 AD |
6319 | u32 link_speed = adapter->link_speed; |
6320 | bool link_up = adapter->link_up; | |
041441d0 | 6321 | bool pfc_en = adapter->dcb_cfg.pfc_mode_enable; |
e8e26350 | 6322 | |
93c52dd0 AD |
6323 | if (!(adapter->flags & IXGBE_FLAG_NEED_LINK_UPDATE)) |
6324 | return; | |
6325 | ||
6326 | if (hw->mac.ops.check_link) { | |
6327 | hw->mac.ops.check_link(hw, &link_speed, &link_up, false); | |
c4cf55e5 | 6328 | } else { |
93c52dd0 AD |
6329 | /* always assume link is up, if no check link function */ |
6330 | link_speed = IXGBE_LINK_SPEED_10GB_FULL; | |
6331 | link_up = true; | |
c4cf55e5 | 6332 | } |
041441d0 AD |
6333 | |
6334 | if (adapter->ixgbe_ieee_pfc) | |
6335 | pfc_en |= !!(adapter->ixgbe_ieee_pfc->pfc_en); | |
6336 | ||
3ebe8fde | 6337 | if (link_up && !((adapter->flags & IXGBE_FLAG_DCB_ENABLED) && pfc_en)) { |
041441d0 | 6338 | hw->mac.ops.fc_enable(hw); |
3ebe8fde AD |
6339 | ixgbe_set_rx_drop_en(adapter); |
6340 | } | |
93c52dd0 AD |
6341 | |
6342 | if (link_up || | |
6343 | time_after(jiffies, (adapter->link_check_timeout + | |
6344 | IXGBE_TRY_LINK_TIMEOUT))) { | |
6345 | adapter->flags &= ~IXGBE_FLAG_NEED_LINK_UPDATE; | |
6346 | IXGBE_WRITE_REG(hw, IXGBE_EIMS, IXGBE_EIMC_LSC); | |
6347 | IXGBE_WRITE_FLUSH(hw); | |
6348 | } | |
6349 | ||
6350 | adapter->link_up = link_up; | |
6351 | adapter->link_speed = link_speed; | |
e8e26350 PW |
6352 | } |
6353 | ||
107d3018 AD |
6354 | static void ixgbe_update_default_up(struct ixgbe_adapter *adapter) |
6355 | { | |
6356 | #ifdef CONFIG_IXGBE_DCB | |
6357 | struct net_device *netdev = adapter->netdev; | |
6358 | struct dcb_app app = { | |
6359 | .selector = IEEE_8021QAZ_APP_SEL_ETHERTYPE, | |
6360 | .protocol = 0, | |
6361 | }; | |
6362 | u8 up = 0; | |
6363 | ||
6364 | if (adapter->dcbx_cap & DCB_CAP_DCBX_VER_IEEE) | |
6365 | up = dcb_ieee_getapp_mask(netdev, &app); | |
6366 | ||
6367 | adapter->default_up = (up > 1) ? (ffs(up) - 1) : 0; | |
6368 | #endif | |
6369 | } | |
6370 | ||
e8e26350 | 6371 | /** |
93c52dd0 AD |
6372 | * ixgbe_watchdog_link_is_up - update netif_carrier status and |
6373 | * print link up message | |
49ce9c2c | 6374 | * @adapter: pointer to the device adapter structure |
e8e26350 | 6375 | **/ |
93c52dd0 | 6376 | static void ixgbe_watchdog_link_is_up(struct ixgbe_adapter *adapter) |
e8e26350 | 6377 | { |
93c52dd0 | 6378 | struct net_device *netdev = adapter->netdev; |
e8e26350 | 6379 | struct ixgbe_hw *hw = &adapter->hw; |
cdc04dcc ET |
6380 | struct net_device *upper; |
6381 | struct list_head *iter; | |
93c52dd0 AD |
6382 | u32 link_speed = adapter->link_speed; |
6383 | bool flow_rx, flow_tx; | |
e8e26350 | 6384 | |
93c52dd0 AD |
6385 | /* only continue if link was previously down */ |
6386 | if (netif_carrier_ok(netdev)) | |
a985b6c3 | 6387 | return; |
63d6e1d8 | 6388 | |
93c52dd0 | 6389 | adapter->flags2 &= ~IXGBE_FLAG2_SEARCH_FOR_SFP; |
63d6e1d8 | 6390 | |
93c52dd0 AD |
6391 | switch (hw->mac.type) { |
6392 | case ixgbe_mac_82598EB: { | |
6393 | u32 frctl = IXGBE_READ_REG(hw, IXGBE_FCTRL); | |
6394 | u32 rmcs = IXGBE_READ_REG(hw, IXGBE_RMCS); | |
6395 | flow_rx = !!(frctl & IXGBE_FCTRL_RFCE); | |
6396 | flow_tx = !!(rmcs & IXGBE_RMCS_TFCE_802_3X); | |
6397 | } | |
6398 | break; | |
6399 | case ixgbe_mac_X540: | |
9a75a1ac DS |
6400 | case ixgbe_mac_X550: |
6401 | case ixgbe_mac_X550EM_x: | |
93c52dd0 AD |
6402 | case ixgbe_mac_82599EB: { |
6403 | u32 mflcn = IXGBE_READ_REG(hw, IXGBE_MFLCN); | |
6404 | u32 fccfg = IXGBE_READ_REG(hw, IXGBE_FCCFG); | |
6405 | flow_rx = !!(mflcn & IXGBE_MFLCN_RFCE); | |
6406 | flow_tx = !!(fccfg & IXGBE_FCCFG_TFCE_802_3X); | |
6407 | } | |
6408 | break; | |
6409 | default: | |
6410 | flow_tx = false; | |
6411 | flow_rx = false; | |
6412 | break; | |
e8e26350 | 6413 | } |
3a6a4eda | 6414 | |
6cb562d6 JK |
6415 | adapter->last_rx_ptp_check = jiffies; |
6416 | ||
8fecf67c | 6417 | if (test_bit(__IXGBE_PTP_RUNNING, &adapter->state)) |
1a71ab24 | 6418 | ixgbe_ptp_start_cyclecounter(adapter); |
3a6a4eda | 6419 | |
93c52dd0 AD |
6420 | e_info(drv, "NIC Link is Up %s, Flow Control: %s\n", |
6421 | (link_speed == IXGBE_LINK_SPEED_10GB_FULL ? | |
6422 | "10 Gbps" : | |
6423 | (link_speed == IXGBE_LINK_SPEED_1GB_FULL ? | |
6424 | "1 Gbps" : | |
6425 | (link_speed == IXGBE_LINK_SPEED_100_FULL ? | |
6426 | "100 Mbps" : | |
6427 | "unknown speed"))), | |
6428 | ((flow_rx && flow_tx) ? "RX/TX" : | |
6429 | (flow_rx ? "RX" : | |
6430 | (flow_tx ? "TX" : "None")))); | |
e8e26350 | 6431 | |
93c52dd0 | 6432 | netif_carrier_on(netdev); |
93c52dd0 | 6433 | ixgbe_check_vf_rate_limit(adapter); |
befa2af7 | 6434 | |
cdc04dcc ET |
6435 | /* enable transmits */ |
6436 | netif_tx_wake_all_queues(adapter->netdev); | |
6437 | ||
6438 | /* enable any upper devices */ | |
6439 | rtnl_lock(); | |
6440 | netdev_for_each_all_upper_dev_rcu(adapter->netdev, upper, iter) { | |
6441 | if (netif_is_macvlan(upper)) { | |
6442 | struct macvlan_dev *vlan = netdev_priv(upper); | |
6443 | ||
6444 | if (vlan->fwd_priv) | |
6445 | netif_tx_wake_all_queues(upper); | |
6446 | } | |
6447 | } | |
6448 | rtnl_unlock(); | |
6449 | ||
107d3018 AD |
6450 | /* update the default user priority for VFs */ |
6451 | ixgbe_update_default_up(adapter); | |
6452 | ||
befa2af7 AD |
6453 | /* ping all the active vfs to let them know link has changed */ |
6454 | ixgbe_ping_all_vfs(adapter); | |
e8e26350 PW |
6455 | } |
6456 | ||
c4cf55e5 | 6457 | /** |
93c52dd0 AD |
6458 | * ixgbe_watchdog_link_is_down - update netif_carrier status and |
6459 | * print link down message | |
49ce9c2c | 6460 | * @adapter: pointer to the adapter structure |
c4cf55e5 | 6461 | **/ |
581330ba | 6462 | static void ixgbe_watchdog_link_is_down(struct ixgbe_adapter *adapter) |
c4cf55e5 | 6463 | { |
cf8280ee | 6464 | struct net_device *netdev = adapter->netdev; |
c4cf55e5 | 6465 | struct ixgbe_hw *hw = &adapter->hw; |
10eec955 | 6466 | |
93c52dd0 AD |
6467 | adapter->link_up = false; |
6468 | adapter->link_speed = 0; | |
cf8280ee | 6469 | |
93c52dd0 AD |
6470 | /* only continue if link was up previously */ |
6471 | if (!netif_carrier_ok(netdev)) | |
6472 | return; | |
264857b8 | 6473 | |
93c52dd0 AD |
6474 | /* poll for SFP+ cable when link is down */ |
6475 | if (ixgbe_is_sfp(hw) && hw->mac.type == ixgbe_mac_82598EB) | |
6476 | adapter->flags2 |= IXGBE_FLAG2_SEARCH_FOR_SFP; | |
9a799d71 | 6477 | |
8fecf67c | 6478 | if (test_bit(__IXGBE_PTP_RUNNING, &adapter->state)) |
1a71ab24 | 6479 | ixgbe_ptp_start_cyclecounter(adapter); |
3a6a4eda | 6480 | |
93c52dd0 AD |
6481 | e_info(drv, "NIC Link is Down\n"); |
6482 | netif_carrier_off(netdev); | |
befa2af7 AD |
6483 | |
6484 | /* ping all the active vfs to let them know link has changed */ | |
6485 | ixgbe_ping_all_vfs(adapter); | |
93c52dd0 | 6486 | } |
e8e26350 | 6487 | |
07923c17 ET |
6488 | static bool ixgbe_ring_tx_pending(struct ixgbe_adapter *adapter) |
6489 | { | |
6490 | int i; | |
6491 | ||
6492 | for (i = 0; i < adapter->num_tx_queues; i++) { | |
6493 | struct ixgbe_ring *tx_ring = adapter->tx_ring[i]; | |
6494 | ||
6495 | if (tx_ring->next_to_use != tx_ring->next_to_clean) | |
6496 | return true; | |
6497 | } | |
6498 | ||
6499 | return false; | |
6500 | } | |
6501 | ||
6502 | static bool ixgbe_vf_tx_pending(struct ixgbe_adapter *adapter) | |
6503 | { | |
6504 | struct ixgbe_hw *hw = &adapter->hw; | |
6505 | struct ixgbe_ring_feature *vmdq = &adapter->ring_feature[RING_F_VMDQ]; | |
6506 | u32 q_per_pool = __ALIGN_MASK(1, ~vmdq->mask); | |
6507 | ||
6508 | int i, j; | |
6509 | ||
6510 | if (!adapter->num_vfs) | |
6511 | return false; | |
6512 | ||
9a75a1ac DS |
6513 | /* resetting the PF is only needed for MAC before X550 */ |
6514 | if (hw->mac.type >= ixgbe_mac_X550) | |
6515 | return false; | |
6516 | ||
07923c17 ET |
6517 | for (i = 0; i < adapter->num_vfs; i++) { |
6518 | for (j = 0; j < q_per_pool; j++) { | |
6519 | u32 h, t; | |
6520 | ||
6521 | h = IXGBE_READ_REG(hw, IXGBE_PVFTDHN(q_per_pool, i, j)); | |
6522 | t = IXGBE_READ_REG(hw, IXGBE_PVFTDTN(q_per_pool, i, j)); | |
6523 | ||
6524 | if (h != t) | |
6525 | return true; | |
6526 | } | |
6527 | } | |
6528 | ||
6529 | return false; | |
6530 | } | |
6531 | ||
93c52dd0 AD |
6532 | /** |
6533 | * ixgbe_watchdog_flush_tx - flush queues on link down | |
49ce9c2c | 6534 | * @adapter: pointer to the device adapter structure |
93c52dd0 AD |
6535 | **/ |
6536 | static void ixgbe_watchdog_flush_tx(struct ixgbe_adapter *adapter) | |
6537 | { | |
93c52dd0 | 6538 | if (!netif_carrier_ok(adapter->netdev)) { |
07923c17 ET |
6539 | if (ixgbe_ring_tx_pending(adapter) || |
6540 | ixgbe_vf_tx_pending(adapter)) { | |
bc59fcda NS |
6541 | /* We've lost link, so the controller stops DMA, |
6542 | * but we've got queued Tx work that's never going | |
6543 | * to get done, so reset controller to flush Tx. | |
6544 | * (Do the reset outside of interrupt context). | |
6545 | */ | |
12ff3f3b | 6546 | e_warn(drv, "initiating reset to clear Tx work after link loss\n"); |
c83c6cbd | 6547 | adapter->flags2 |= IXGBE_FLAG2_RESET_REQUESTED; |
bc59fcda | 6548 | } |
c4cf55e5 | 6549 | } |
c4cf55e5 PWJ |
6550 | } |
6551 | ||
9079e416 ET |
6552 | #ifdef CONFIG_PCI_IOV |
6553 | static inline void ixgbe_issue_vf_flr(struct ixgbe_adapter *adapter, | |
6554 | struct pci_dev *vfdev) | |
6555 | { | |
6556 | if (!pci_wait_for_pending_transaction(vfdev)) | |
6557 | e_dev_warn("Issuing VFLR with pending transactions\n"); | |
6558 | ||
6559 | e_dev_err("Issuing VFLR for VF %s\n", pci_name(vfdev)); | |
6560 | pcie_capability_set_word(vfdev, PCI_EXP_DEVCTL, PCI_EXP_DEVCTL_BCR_FLR); | |
6561 | ||
6562 | msleep(100); | |
6563 | } | |
6564 | ||
6565 | static void ixgbe_check_for_bad_vf(struct ixgbe_adapter *adapter) | |
6566 | { | |
6567 | struct ixgbe_hw *hw = &adapter->hw; | |
6568 | struct pci_dev *pdev = adapter->pdev; | |
6569 | struct pci_dev *vfdev; | |
6570 | u32 gpc; | |
6571 | int pos; | |
6572 | unsigned short vf_id; | |
6573 | ||
6574 | if (!(netif_carrier_ok(adapter->netdev))) | |
6575 | return; | |
6576 | ||
6577 | gpc = IXGBE_READ_REG(hw, IXGBE_TXDGPC); | |
6578 | if (gpc) /* If incrementing then no need for the check below */ | |
6579 | return; | |
6580 | /* Check to see if a bad DMA write target from an errant or | |
6581 | * malicious VF has caused a PCIe error. If so then we can | |
6582 | * issue a VFLR to the offending VF(s) and then resume without | |
6583 | * requesting a full slot reset. | |
6584 | */ | |
6585 | ||
6586 | if (!pdev) | |
6587 | return; | |
6588 | ||
6589 | pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_SRIOV); | |
6590 | if (!pos) | |
6591 | return; | |
6592 | ||
6593 | /* get the device ID for the VF */ | |
6594 | pci_read_config_word(pdev, pos + PCI_SRIOV_VF_DID, &vf_id); | |
6595 | ||
6596 | /* check status reg for all VFs owned by this PF */ | |
6597 | vfdev = pci_get_device(pdev->vendor, vf_id, NULL); | |
6598 | while (vfdev) { | |
6599 | if (vfdev->is_virtfn && (vfdev->physfn == pdev)) { | |
6600 | u16 status_reg; | |
6601 | ||
6602 | pci_read_config_word(vfdev, PCI_STATUS, &status_reg); | |
6603 | if (status_reg & PCI_STATUS_REC_MASTER_ABORT) | |
6604 | /* issue VFLR */ | |
6605 | ixgbe_issue_vf_flr(adapter, vfdev); | |
6606 | } | |
6607 | ||
6608 | vfdev = pci_get_device(pdev->vendor, vf_id, vfdev); | |
6609 | } | |
6610 | } | |
6611 | ||
a985b6c3 GR |
6612 | static void ixgbe_spoof_check(struct ixgbe_adapter *adapter) |
6613 | { | |
6614 | u32 ssvpc; | |
6615 | ||
0584d999 GR |
6616 | /* Do not perform spoof check for 82598 or if not in IOV mode */ |
6617 | if (adapter->hw.mac.type == ixgbe_mac_82598EB || | |
6618 | adapter->num_vfs == 0) | |
a985b6c3 GR |
6619 | return; |
6620 | ||
6621 | ssvpc = IXGBE_READ_REG(&adapter->hw, IXGBE_SSVPC); | |
6622 | ||
6623 | /* | |
6624 | * ssvpc register is cleared on read, if zero then no | |
6625 | * spoofed packets in the last interval. | |
6626 | */ | |
6627 | if (!ssvpc) | |
6628 | return; | |
6629 | ||
d6ea0754 | 6630 | e_warn(drv, "%u Spoofed packets detected\n", ssvpc); |
a985b6c3 | 6631 | } |
9079e416 ET |
6632 | #else |
6633 | static void ixgbe_spoof_check(struct ixgbe_adapter __always_unused *adapter) | |
6634 | { | |
6635 | } | |
6636 | ||
6637 | static void | |
6638 | ixgbe_check_for_bad_vf(struct ixgbe_adapter __always_unused *adapter) | |
6639 | { | |
6640 | } | |
6641 | #endif /* CONFIG_PCI_IOV */ | |
6642 | ||
a985b6c3 | 6643 | |
93c52dd0 AD |
6644 | /** |
6645 | * ixgbe_watchdog_subtask - check and bring link up | |
49ce9c2c | 6646 | * @adapter: pointer to the device adapter structure |
93c52dd0 AD |
6647 | **/ |
6648 | static void ixgbe_watchdog_subtask(struct ixgbe_adapter *adapter) | |
6649 | { | |
09f40aed | 6650 | /* if interface is down, removing or resetting, do nothing */ |
7edebf9a | 6651 | if (test_bit(__IXGBE_DOWN, &adapter->state) || |
09f40aed | 6652 | test_bit(__IXGBE_REMOVING, &adapter->state) || |
7edebf9a | 6653 | test_bit(__IXGBE_RESETTING, &adapter->state)) |
93c52dd0 AD |
6654 | return; |
6655 | ||
6656 | ixgbe_watchdog_update_link(adapter); | |
6657 | ||
6658 | if (adapter->link_up) | |
6659 | ixgbe_watchdog_link_is_up(adapter); | |
6660 | else | |
6661 | ixgbe_watchdog_link_is_down(adapter); | |
bc59fcda | 6662 | |
9079e416 | 6663 | ixgbe_check_for_bad_vf(adapter); |
a985b6c3 | 6664 | ixgbe_spoof_check(adapter); |
9a799d71 | 6665 | ixgbe_update_stats(adapter); |
93c52dd0 AD |
6666 | |
6667 | ixgbe_watchdog_flush_tx(adapter); | |
9a799d71 | 6668 | } |
10eec955 | 6669 | |
cf8280ee | 6670 | /** |
7086400d | 6671 | * ixgbe_sfp_detection_subtask - poll for SFP+ cable |
49ce9c2c | 6672 | * @adapter: the ixgbe adapter structure |
cf8280ee | 6673 | **/ |
7086400d | 6674 | static void ixgbe_sfp_detection_subtask(struct ixgbe_adapter *adapter) |
cf8280ee | 6675 | { |
cf8280ee | 6676 | struct ixgbe_hw *hw = &adapter->hw; |
7086400d | 6677 | s32 err; |
cf8280ee | 6678 | |
7086400d AD |
6679 | /* not searching for SFP so there is nothing to do here */ |
6680 | if (!(adapter->flags2 & IXGBE_FLAG2_SEARCH_FOR_SFP) && | |
6681 | !(adapter->flags2 & IXGBE_FLAG2_SFP_NEEDS_RESET)) | |
6682 | return; | |
10eec955 | 6683 | |
7086400d AD |
6684 | /* someone else is in init, wait until next service event */ |
6685 | if (test_and_set_bit(__IXGBE_IN_SFP_INIT, &adapter->state)) | |
6686 | return; | |
cf8280ee | 6687 | |
7086400d AD |
6688 | err = hw->phy.ops.identify_sfp(hw); |
6689 | if (err == IXGBE_ERR_SFP_NOT_SUPPORTED) | |
6690 | goto sfp_out; | |
264857b8 | 6691 | |
7086400d AD |
6692 | if (err == IXGBE_ERR_SFP_NOT_PRESENT) { |
6693 | /* If no cable is present, then we need to reset | |
6694 | * the next time we find a good cable. */ | |
6695 | adapter->flags2 |= IXGBE_FLAG2_SFP_NEEDS_RESET; | |
cf8280ee | 6696 | } |
9a799d71 | 6697 | |
7086400d AD |
6698 | /* exit on error */ |
6699 | if (err) | |
6700 | goto sfp_out; | |
e8e26350 | 6701 | |
7086400d AD |
6702 | /* exit if reset not needed */ |
6703 | if (!(adapter->flags2 & IXGBE_FLAG2_SFP_NEEDS_RESET)) | |
6704 | goto sfp_out; | |
9a799d71 | 6705 | |
7086400d | 6706 | adapter->flags2 &= ~IXGBE_FLAG2_SFP_NEEDS_RESET; |
bc59fcda | 6707 | |
7086400d AD |
6708 | /* |
6709 | * A module may be identified correctly, but the EEPROM may not have | |
6710 | * support for that module. setup_sfp() will fail in that case, so | |
6711 | * we should not allow that module to load. | |
6712 | */ | |
6713 | if (hw->mac.type == ixgbe_mac_82598EB) | |
6714 | err = hw->phy.ops.reset(hw); | |
6715 | else | |
6716 | err = hw->mac.ops.setup_sfp(hw); | |
6717 | ||
6718 | if (err == IXGBE_ERR_SFP_NOT_SUPPORTED) | |
6719 | goto sfp_out; | |
6720 | ||
6721 | adapter->flags |= IXGBE_FLAG_NEED_LINK_CONFIG; | |
6722 | e_info(probe, "detected SFP+: %d\n", hw->phy.sfp_type); | |
6723 | ||
6724 | sfp_out: | |
6725 | clear_bit(__IXGBE_IN_SFP_INIT, &adapter->state); | |
6726 | ||
6727 | if ((err == IXGBE_ERR_SFP_NOT_SUPPORTED) && | |
6728 | (adapter->netdev->reg_state == NETREG_REGISTERED)) { | |
6729 | e_dev_err("failed to initialize because an unsupported " | |
6730 | "SFP+ module type was detected.\n"); | |
6731 | e_dev_err("Reload the driver after installing a " | |
6732 | "supported module.\n"); | |
6733 | unregister_netdev(adapter->netdev); | |
bc59fcda | 6734 | } |
7086400d | 6735 | } |
bc59fcda | 6736 | |
7086400d AD |
6737 | /** |
6738 | * ixgbe_sfp_link_config_subtask - set up link SFP after module install | |
49ce9c2c | 6739 | * @adapter: the ixgbe adapter structure |
7086400d AD |
6740 | **/ |
6741 | static void ixgbe_sfp_link_config_subtask(struct ixgbe_adapter *adapter) | |
6742 | { | |
6743 | struct ixgbe_hw *hw = &adapter->hw; | |
3d292265 JH |
6744 | u32 speed; |
6745 | bool autoneg = false; | |
7086400d AD |
6746 | |
6747 | if (!(adapter->flags & IXGBE_FLAG_NEED_LINK_CONFIG)) | |
6748 | return; | |
6749 | ||
6750 | /* someone else is in init, wait until next service event */ | |
6751 | if (test_and_set_bit(__IXGBE_IN_SFP_INIT, &adapter->state)) | |
6752 | return; | |
6753 | ||
6754 | adapter->flags &= ~IXGBE_FLAG_NEED_LINK_CONFIG; | |
6755 | ||
3d292265 | 6756 | speed = hw->phy.autoneg_advertised; |
ed33ff66 | 6757 | if ((!speed) && (hw->mac.ops.get_link_capabilities)) { |
3d292265 | 6758 | hw->mac.ops.get_link_capabilities(hw, &speed, &autoneg); |
ed33ff66 ET |
6759 | |
6760 | /* setup the highest link when no autoneg */ | |
6761 | if (!autoneg) { | |
6762 | if (speed & IXGBE_LINK_SPEED_10GB_FULL) | |
6763 | speed = IXGBE_LINK_SPEED_10GB_FULL; | |
6764 | } | |
6765 | } | |
6766 | ||
7086400d | 6767 | if (hw->mac.ops.setup_link) |
fd0326f2 | 6768 | hw->mac.ops.setup_link(hw, speed, true); |
7086400d AD |
6769 | |
6770 | adapter->flags |= IXGBE_FLAG_NEED_LINK_UPDATE; | |
6771 | adapter->link_check_timeout = jiffies; | |
6772 | clear_bit(__IXGBE_IN_SFP_INIT, &adapter->state); | |
6773 | } | |
6774 | ||
6775 | /** | |
6776 | * ixgbe_service_timer - Timer Call-back | |
6777 | * @data: pointer to adapter cast into an unsigned long | |
6778 | **/ | |
6779 | static void ixgbe_service_timer(unsigned long data) | |
6780 | { | |
6781 | struct ixgbe_adapter *adapter = (struct ixgbe_adapter *)data; | |
6782 | unsigned long next_event_offset; | |
6783 | ||
6bb78cfb AD |
6784 | /* poll faster when waiting for link */ |
6785 | if (adapter->flags & IXGBE_FLAG_NEED_LINK_UPDATE) | |
6786 | next_event_offset = HZ / 10; | |
6787 | else | |
6788 | next_event_offset = HZ * 2; | |
83c61fa9 | 6789 | |
7086400d AD |
6790 | /* Reset the timer */ |
6791 | mod_timer(&adapter->service_timer, next_event_offset + jiffies); | |
6792 | ||
9079e416 | 6793 | ixgbe_service_event_schedule(adapter); |
7086400d AD |
6794 | } |
6795 | ||
597f22d6 DS |
6796 | static void ixgbe_phy_interrupt_subtask(struct ixgbe_adapter *adapter) |
6797 | { | |
6798 | struct ixgbe_hw *hw = &adapter->hw; | |
6799 | u32 status; | |
6800 | ||
6801 | if (!(adapter->flags2 & IXGBE_FLAG2_PHY_INTERRUPT)) | |
6802 | return; | |
6803 | ||
6804 | adapter->flags2 &= ~IXGBE_FLAG2_PHY_INTERRUPT; | |
6805 | ||
6806 | if (!hw->phy.ops.handle_lasi) | |
6807 | return; | |
6808 | ||
6809 | status = hw->phy.ops.handle_lasi(&adapter->hw); | |
6810 | if (status != IXGBE_ERR_OVERTEMP) | |
6811 | return; | |
6812 | ||
6813 | e_crit(drv, "%s\n", ixgbe_overheat_msg); | |
6814 | } | |
6815 | ||
c83c6cbd AD |
6816 | static void ixgbe_reset_subtask(struct ixgbe_adapter *adapter) |
6817 | { | |
6818 | if (!(adapter->flags2 & IXGBE_FLAG2_RESET_REQUESTED)) | |
6819 | return; | |
6820 | ||
6821 | adapter->flags2 &= ~IXGBE_FLAG2_RESET_REQUESTED; | |
6822 | ||
09f40aed | 6823 | /* If we're already down, removing or resetting, just bail */ |
c83c6cbd | 6824 | if (test_bit(__IXGBE_DOWN, &adapter->state) || |
09f40aed | 6825 | test_bit(__IXGBE_REMOVING, &adapter->state) || |
c83c6cbd AD |
6826 | test_bit(__IXGBE_RESETTING, &adapter->state)) |
6827 | return; | |
6828 | ||
6829 | ixgbe_dump(adapter); | |
6830 | netdev_err(adapter->netdev, "Reset adapter\n"); | |
6831 | adapter->tx_timeout_count++; | |
6832 | ||
8f4c5c9f | 6833 | rtnl_lock(); |
c83c6cbd | 6834 | ixgbe_reinit_locked(adapter); |
8f4c5c9f | 6835 | rtnl_unlock(); |
c83c6cbd AD |
6836 | } |
6837 | ||
7086400d AD |
6838 | /** |
6839 | * ixgbe_service_task - manages and runs subtasks | |
6840 | * @work: pointer to work_struct containing our data | |
6841 | **/ | |
6842 | static void ixgbe_service_task(struct work_struct *work) | |
6843 | { | |
6844 | struct ixgbe_adapter *adapter = container_of(work, | |
6845 | struct ixgbe_adapter, | |
6846 | service_task); | |
b0483c8f MR |
6847 | if (ixgbe_removed(adapter->hw.hw_addr)) { |
6848 | if (!test_bit(__IXGBE_DOWN, &adapter->state)) { | |
6849 | rtnl_lock(); | |
6850 | ixgbe_down(adapter); | |
6851 | rtnl_unlock(); | |
6852 | } | |
6853 | ixgbe_service_event_complete(adapter); | |
6854 | return; | |
6855 | } | |
67359c3c MR |
6856 | #ifdef CONFIG_IXGBE_VXLAN |
6857 | if (adapter->flags2 & IXGBE_FLAG2_VXLAN_REREG_NEEDED) { | |
6858 | adapter->flags2 &= ~IXGBE_FLAG2_VXLAN_REREG_NEEDED; | |
6859 | vxlan_get_rx_port(adapter->netdev); | |
6860 | } | |
6861 | #endif /* CONFIG_IXGBE_VXLAN */ | |
c83c6cbd | 6862 | ixgbe_reset_subtask(adapter); |
597f22d6 | 6863 | ixgbe_phy_interrupt_subtask(adapter); |
7086400d AD |
6864 | ixgbe_sfp_detection_subtask(adapter); |
6865 | ixgbe_sfp_link_config_subtask(adapter); | |
f0f9778d | 6866 | ixgbe_check_overtemp_subtask(adapter); |
93c52dd0 | 6867 | ixgbe_watchdog_subtask(adapter); |
d034acf1 | 6868 | ixgbe_fdir_reinit_subtask(adapter); |
93c52dd0 | 6869 | ixgbe_check_hang_subtask(adapter); |
891dc082 | 6870 | |
8fecf67c | 6871 | if (test_bit(__IXGBE_PTP_RUNNING, &adapter->state)) { |
891dc082 JK |
6872 | ixgbe_ptp_overflow_check(adapter); |
6873 | ixgbe_ptp_rx_hang(adapter); | |
6874 | } | |
7086400d AD |
6875 | |
6876 | ixgbe_service_event_complete(adapter); | |
9a799d71 AK |
6877 | } |
6878 | ||
fd0db0ed AD |
6879 | static int ixgbe_tso(struct ixgbe_ring *tx_ring, |
6880 | struct ixgbe_tx_buffer *first, | |
244e27ad | 6881 | u8 *hdr_len) |
897ab156 | 6882 | { |
fd0db0ed | 6883 | struct sk_buff *skb = first->skb; |
897ab156 AD |
6884 | u32 vlan_macip_lens, type_tucmd; |
6885 | u32 mss_l4len_idx, l4len; | |
2049e1f6 | 6886 | int err; |
9a799d71 | 6887 | |
8f4fbb9b AD |
6888 | if (skb->ip_summed != CHECKSUM_PARTIAL) |
6889 | return 0; | |
6890 | ||
897ab156 AD |
6891 | if (!skb_is_gso(skb)) |
6892 | return 0; | |
9a799d71 | 6893 | |
2049e1f6 FR |
6894 | err = skb_cow_head(skb, 0); |
6895 | if (err < 0) | |
6896 | return err; | |
9a799d71 | 6897 | |
897ab156 AD |
6898 | /* ADV DTYP TUCMD MKRLOC/ISCSIHEDLEN */ |
6899 | type_tucmd = IXGBE_ADVTXD_TUCMD_L4T_TCP; | |
6900 | ||
a1108ffd | 6901 | if (first->protocol == htons(ETH_P_IP)) { |
897ab156 AD |
6902 | struct iphdr *iph = ip_hdr(skb); |
6903 | iph->tot_len = 0; | |
6904 | iph->check = 0; | |
6905 | tcp_hdr(skb)->check = ~csum_tcpudp_magic(iph->saddr, | |
6906 | iph->daddr, 0, | |
6907 | IPPROTO_TCP, | |
6908 | 0); | |
6909 | type_tucmd |= IXGBE_ADVTXD_TUCMD_IPV4; | |
244e27ad AD |
6910 | first->tx_flags |= IXGBE_TX_FLAGS_TSO | |
6911 | IXGBE_TX_FLAGS_CSUM | | |
6912 | IXGBE_TX_FLAGS_IPV4; | |
897ab156 AD |
6913 | } else if (skb_is_gso_v6(skb)) { |
6914 | ipv6_hdr(skb)->payload_len = 0; | |
6915 | tcp_hdr(skb)->check = | |
6916 | ~csum_ipv6_magic(&ipv6_hdr(skb)->saddr, | |
6917 | &ipv6_hdr(skb)->daddr, | |
6918 | 0, IPPROTO_TCP, 0); | |
244e27ad AD |
6919 | first->tx_flags |= IXGBE_TX_FLAGS_TSO | |
6920 | IXGBE_TX_FLAGS_CSUM; | |
897ab156 AD |
6921 | } |
6922 | ||
091a6246 | 6923 | /* compute header lengths */ |
897ab156 AD |
6924 | l4len = tcp_hdrlen(skb); |
6925 | *hdr_len = skb_transport_offset(skb) + l4len; | |
6926 | ||
091a6246 AD |
6927 | /* update gso size and bytecount with header size */ |
6928 | first->gso_segs = skb_shinfo(skb)->gso_segs; | |
6929 | first->bytecount += (first->gso_segs - 1) * *hdr_len; | |
6930 | ||
c44f5f51 | 6931 | /* mss_l4len_id: use 0 as index for TSO */ |
897ab156 AD |
6932 | mss_l4len_idx = l4len << IXGBE_ADVTXD_L4LEN_SHIFT; |
6933 | mss_l4len_idx |= skb_shinfo(skb)->gso_size << IXGBE_ADVTXD_MSS_SHIFT; | |
897ab156 AD |
6934 | |
6935 | /* vlan_macip_lens: HEADLEN, MACLEN, VLAN tag */ | |
6936 | vlan_macip_lens = skb_network_header_len(skb); | |
6937 | vlan_macip_lens |= skb_network_offset(skb) << IXGBE_ADVTXD_MACLEN_SHIFT; | |
244e27ad | 6938 | vlan_macip_lens |= first->tx_flags & IXGBE_TX_FLAGS_VLAN_MASK; |
897ab156 AD |
6939 | |
6940 | ixgbe_tx_ctxtdesc(tx_ring, vlan_macip_lens, 0, type_tucmd, | |
244e27ad | 6941 | mss_l4len_idx); |
897ab156 AD |
6942 | |
6943 | return 1; | |
6944 | } | |
6945 | ||
244e27ad AD |
6946 | static void ixgbe_tx_csum(struct ixgbe_ring *tx_ring, |
6947 | struct ixgbe_tx_buffer *first) | |
7ca647bd | 6948 | { |
fd0db0ed | 6949 | struct sk_buff *skb = first->skb; |
897ab156 AD |
6950 | u32 vlan_macip_lens = 0; |
6951 | u32 mss_l4len_idx = 0; | |
6952 | u32 type_tucmd = 0; | |
7ca647bd | 6953 | |
897ab156 | 6954 | if (skb->ip_summed != CHECKSUM_PARTIAL) { |
472148c3 AD |
6955 | if (!(first->tx_flags & IXGBE_TX_FLAGS_HW_VLAN) && |
6956 | !(first->tx_flags & IXGBE_TX_FLAGS_CC)) | |
6957 | return; | |
f467bc06 MR |
6958 | vlan_macip_lens = skb_network_offset(skb) << |
6959 | IXGBE_ADVTXD_MACLEN_SHIFT; | |
897ab156 AD |
6960 | } else { |
6961 | u8 l4_hdr = 0; | |
f467bc06 MR |
6962 | union { |
6963 | struct iphdr *ipv4; | |
6964 | struct ipv6hdr *ipv6; | |
6965 | u8 *raw; | |
6966 | } network_hdr; | |
6967 | union { | |
6968 | struct tcphdr *tcphdr; | |
6969 | u8 *raw; | |
6970 | } transport_hdr; | |
6971 | ||
6972 | if (skb->encapsulation) { | |
6973 | network_hdr.raw = skb_inner_network_header(skb); | |
6974 | transport_hdr.raw = skb_inner_transport_header(skb); | |
6975 | vlan_macip_lens = skb_inner_network_offset(skb) << | |
6976 | IXGBE_ADVTXD_MACLEN_SHIFT; | |
6977 | } else { | |
6978 | network_hdr.raw = skb_network_header(skb); | |
6979 | transport_hdr.raw = skb_transport_header(skb); | |
6980 | vlan_macip_lens = skb_network_offset(skb) << | |
6981 | IXGBE_ADVTXD_MACLEN_SHIFT; | |
6982 | } | |
6983 | ||
6984 | /* use first 4 bits to determine IP version */ | |
6985 | switch (network_hdr.ipv4->version) { | |
6986 | case IPVERSION: | |
6987 | vlan_macip_lens |= transport_hdr.raw - network_hdr.raw; | |
897ab156 | 6988 | type_tucmd |= IXGBE_ADVTXD_TUCMD_IPV4; |
f467bc06 | 6989 | l4_hdr = network_hdr.ipv4->protocol; |
7ca647bd | 6990 | break; |
f467bc06 MR |
6991 | case 6: |
6992 | vlan_macip_lens |= transport_hdr.raw - network_hdr.raw; | |
6993 | l4_hdr = network_hdr.ipv6->nexthdr; | |
897ab156 AD |
6994 | break; |
6995 | default: | |
6996 | if (unlikely(net_ratelimit())) { | |
6997 | dev_warn(tx_ring->dev, | |
f467bc06 MR |
6998 | "partial checksum but version=%d\n", |
6999 | network_hdr.ipv4->version); | |
897ab156 | 7000 | } |
7ca647bd | 7001 | } |
897ab156 AD |
7002 | |
7003 | switch (l4_hdr) { | |
7ca647bd | 7004 | case IPPROTO_TCP: |
897ab156 | 7005 | type_tucmd |= IXGBE_ADVTXD_TUCMD_L4T_TCP; |
f467bc06 | 7006 | mss_l4len_idx = (transport_hdr.tcphdr->doff * 4) << |
897ab156 | 7007 | IXGBE_ADVTXD_L4LEN_SHIFT; |
7ca647bd JP |
7008 | break; |
7009 | case IPPROTO_SCTP: | |
897ab156 AD |
7010 | type_tucmd |= IXGBE_ADVTXD_TUCMD_L4T_SCTP; |
7011 | mss_l4len_idx = sizeof(struct sctphdr) << | |
7012 | IXGBE_ADVTXD_L4LEN_SHIFT; | |
7013 | break; | |
7014 | case IPPROTO_UDP: | |
7015 | mss_l4len_idx = sizeof(struct udphdr) << | |
7016 | IXGBE_ADVTXD_L4LEN_SHIFT; | |
7017 | break; | |
7018 | default: | |
7019 | if (unlikely(net_ratelimit())) { | |
7020 | dev_warn(tx_ring->dev, | |
7021 | "partial checksum but l4 proto=%x!\n", | |
244e27ad | 7022 | l4_hdr); |
897ab156 | 7023 | } |
7ca647bd JP |
7024 | break; |
7025 | } | |
244e27ad AD |
7026 | |
7027 | /* update TX checksum flag */ | |
7028 | first->tx_flags |= IXGBE_TX_FLAGS_CSUM; | |
7ca647bd JP |
7029 | } |
7030 | ||
244e27ad | 7031 | /* vlan_macip_lens: MACLEN, VLAN tag */ |
244e27ad | 7032 | vlan_macip_lens |= first->tx_flags & IXGBE_TX_FLAGS_VLAN_MASK; |
9a799d71 | 7033 | |
897ab156 AD |
7034 | ixgbe_tx_ctxtdesc(tx_ring, vlan_macip_lens, 0, |
7035 | type_tucmd, mss_l4len_idx); | |
9a799d71 AK |
7036 | } |
7037 | ||
472148c3 AD |
7038 | #define IXGBE_SET_FLAG(_input, _flag, _result) \ |
7039 | ((_flag <= _result) ? \ | |
7040 | ((u32)(_input & _flag) * (_result / _flag)) : \ | |
7041 | ((u32)(_input & _flag) / (_flag / _result))) | |
7042 | ||
7043 | static u32 ixgbe_tx_cmd_type(struct sk_buff *skb, u32 tx_flags) | |
9a799d71 | 7044 | { |
d3d00239 | 7045 | /* set type for advanced descriptor with frame checksum insertion */ |
472148c3 AD |
7046 | u32 cmd_type = IXGBE_ADVTXD_DTYP_DATA | |
7047 | IXGBE_ADVTXD_DCMD_DEXT | | |
7048 | IXGBE_ADVTXD_DCMD_IFCS; | |
9a799d71 | 7049 | |
d3d00239 | 7050 | /* set HW vlan bit if vlan is present */ |
472148c3 AD |
7051 | cmd_type |= IXGBE_SET_FLAG(tx_flags, IXGBE_TX_FLAGS_HW_VLAN, |
7052 | IXGBE_ADVTXD_DCMD_VLE); | |
3a6a4eda | 7053 | |
d3d00239 | 7054 | /* set segmentation enable bits for TSO/FSO */ |
472148c3 AD |
7055 | cmd_type |= IXGBE_SET_FLAG(tx_flags, IXGBE_TX_FLAGS_TSO, |
7056 | IXGBE_ADVTXD_DCMD_TSE); | |
7057 | ||
7058 | /* set timestamp bit if present */ | |
7059 | cmd_type |= IXGBE_SET_FLAG(tx_flags, IXGBE_TX_FLAGS_TSTAMP, | |
7060 | IXGBE_ADVTXD_MAC_TSTAMP); | |
eacd73f7 | 7061 | |
62748b7b | 7062 | /* insert frame checksum */ |
472148c3 | 7063 | cmd_type ^= IXGBE_SET_FLAG(skb->no_fcs, 1, IXGBE_ADVTXD_DCMD_IFCS); |
62748b7b | 7064 | |
d3d00239 AD |
7065 | return cmd_type; |
7066 | } | |
9a799d71 | 7067 | |
729739b7 AD |
7068 | static void ixgbe_tx_olinfo_status(union ixgbe_adv_tx_desc *tx_desc, |
7069 | u32 tx_flags, unsigned int paylen) | |
d3d00239 | 7070 | { |
472148c3 | 7071 | u32 olinfo_status = paylen << IXGBE_ADVTXD_PAYLEN_SHIFT; |
9a799d71 | 7072 | |
d3d00239 | 7073 | /* enable L4 checksum for TSO and TX checksum offload */ |
472148c3 AD |
7074 | olinfo_status |= IXGBE_SET_FLAG(tx_flags, |
7075 | IXGBE_TX_FLAGS_CSUM, | |
7076 | IXGBE_ADVTXD_POPTS_TXSM); | |
9a799d71 | 7077 | |
93f5b3c1 | 7078 | /* enble IPv4 checksum for TSO */ |
472148c3 AD |
7079 | olinfo_status |= IXGBE_SET_FLAG(tx_flags, |
7080 | IXGBE_TX_FLAGS_IPV4, | |
7081 | IXGBE_ADVTXD_POPTS_IXSM); | |
9a799d71 | 7082 | |
7f9643fd AD |
7083 | /* |
7084 | * Check Context must be set if Tx switch is enabled, which it | |
7085 | * always is for case where virtual functions are running | |
7086 | */ | |
472148c3 AD |
7087 | olinfo_status |= IXGBE_SET_FLAG(tx_flags, |
7088 | IXGBE_TX_FLAGS_CC, | |
7089 | IXGBE_ADVTXD_CC); | |
7f9643fd | 7090 | |
472148c3 | 7091 | tx_desc->read.olinfo_status = cpu_to_le32(olinfo_status); |
d3d00239 | 7092 | } |
44df32c5 | 7093 | |
2367a173 DB |
7094 | static int __ixgbe_maybe_stop_tx(struct ixgbe_ring *tx_ring, u16 size) |
7095 | { | |
7096 | netif_stop_subqueue(tx_ring->netdev, tx_ring->queue_index); | |
7097 | ||
7098 | /* Herbert's original patch had: | |
7099 | * smp_mb__after_netif_stop_queue(); | |
7100 | * but since that doesn't exist yet, just open code it. | |
7101 | */ | |
7102 | smp_mb(); | |
7103 | ||
7104 | /* We need to check again in a case another CPU has just | |
7105 | * made room available. | |
7106 | */ | |
7107 | if (likely(ixgbe_desc_unused(tx_ring) < size)) | |
7108 | return -EBUSY; | |
7109 | ||
7110 | /* A reprieve! - use start_queue because it doesn't call schedule */ | |
7111 | netif_start_subqueue(tx_ring->netdev, tx_ring->queue_index); | |
7112 | ++tx_ring->tx_stats.restart_queue; | |
7113 | return 0; | |
7114 | } | |
7115 | ||
7116 | static inline int ixgbe_maybe_stop_tx(struct ixgbe_ring *tx_ring, u16 size) | |
7117 | { | |
7118 | if (likely(ixgbe_desc_unused(tx_ring) >= size)) | |
7119 | return 0; | |
7120 | ||
7121 | return __ixgbe_maybe_stop_tx(tx_ring, size); | |
7122 | } | |
7123 | ||
d3d00239 AD |
7124 | #define IXGBE_TXD_CMD (IXGBE_TXD_CMD_EOP | \ |
7125 | IXGBE_TXD_CMD_RS) | |
7126 | ||
7127 | static void ixgbe_tx_map(struct ixgbe_ring *tx_ring, | |
d3d00239 | 7128 | struct ixgbe_tx_buffer *first, |
d3d00239 AD |
7129 | const u8 hdr_len) |
7130 | { | |
fd0db0ed | 7131 | struct sk_buff *skb = first->skb; |
729739b7 | 7132 | struct ixgbe_tx_buffer *tx_buffer; |
d3d00239 | 7133 | union ixgbe_adv_tx_desc *tx_desc; |
ec718254 AD |
7134 | struct skb_frag_struct *frag; |
7135 | dma_addr_t dma; | |
7136 | unsigned int data_len, size; | |
244e27ad | 7137 | u32 tx_flags = first->tx_flags; |
472148c3 | 7138 | u32 cmd_type = ixgbe_tx_cmd_type(skb, tx_flags); |
d3d00239 | 7139 | u16 i = tx_ring->next_to_use; |
d3d00239 | 7140 | |
729739b7 AD |
7141 | tx_desc = IXGBE_TX_DESC(tx_ring, i); |
7142 | ||
ec718254 AD |
7143 | ixgbe_tx_olinfo_status(tx_desc, tx_flags, skb->len - hdr_len); |
7144 | ||
7145 | size = skb_headlen(skb); | |
7146 | data_len = skb->data_len; | |
729739b7 | 7147 | |
d3d00239 AD |
7148 | #ifdef IXGBE_FCOE |
7149 | if (tx_flags & IXGBE_TX_FLAGS_FCOE) { | |
729739b7 | 7150 | if (data_len < sizeof(struct fcoe_crc_eof)) { |
d3d00239 AD |
7151 | size -= sizeof(struct fcoe_crc_eof) - data_len; |
7152 | data_len = 0; | |
729739b7 AD |
7153 | } else { |
7154 | data_len -= sizeof(struct fcoe_crc_eof); | |
9a799d71 AK |
7155 | } |
7156 | } | |
44df32c5 | 7157 | |
d3d00239 | 7158 | #endif |
729739b7 | 7159 | dma = dma_map_single(tx_ring->dev, skb->data, size, DMA_TO_DEVICE); |
8ad494b0 | 7160 | |
ec718254 | 7161 | tx_buffer = first; |
9a799d71 | 7162 | |
ec718254 AD |
7163 | for (frag = &skb_shinfo(skb)->frags[0];; frag++) { |
7164 | if (dma_mapping_error(tx_ring->dev, dma)) | |
7165 | goto dma_error; | |
7166 | ||
7167 | /* record length, and DMA address */ | |
7168 | dma_unmap_len_set(tx_buffer, len, size); | |
7169 | dma_unmap_addr_set(tx_buffer, dma, dma); | |
7170 | ||
7171 | tx_desc->read.buffer_addr = cpu_to_le64(dma); | |
e5a43549 | 7172 | |
729739b7 | 7173 | while (unlikely(size > IXGBE_MAX_DATA_PER_TXD)) { |
d3d00239 | 7174 | tx_desc->read.cmd_type_len = |
472148c3 | 7175 | cpu_to_le32(cmd_type ^ IXGBE_MAX_DATA_PER_TXD); |
e5a43549 | 7176 | |
d3d00239 | 7177 | i++; |
729739b7 | 7178 | tx_desc++; |
d3d00239 | 7179 | if (i == tx_ring->count) { |
e4f74028 | 7180 | tx_desc = IXGBE_TX_DESC(tx_ring, 0); |
d3d00239 AD |
7181 | i = 0; |
7182 | } | |
ec718254 | 7183 | tx_desc->read.olinfo_status = 0; |
729739b7 AD |
7184 | |
7185 | dma += IXGBE_MAX_DATA_PER_TXD; | |
7186 | size -= IXGBE_MAX_DATA_PER_TXD; | |
7187 | ||
7188 | tx_desc->read.buffer_addr = cpu_to_le64(dma); | |
d3d00239 | 7189 | } |
e5a43549 | 7190 | |
729739b7 AD |
7191 | if (likely(!data_len)) |
7192 | break; | |
9a799d71 | 7193 | |
472148c3 | 7194 | tx_desc->read.cmd_type_len = cpu_to_le32(cmd_type ^ size); |
9a799d71 | 7195 | |
729739b7 AD |
7196 | i++; |
7197 | tx_desc++; | |
7198 | if (i == tx_ring->count) { | |
7199 | tx_desc = IXGBE_TX_DESC(tx_ring, 0); | |
7200 | i = 0; | |
7201 | } | |
ec718254 | 7202 | tx_desc->read.olinfo_status = 0; |
9a799d71 | 7203 | |
d3d00239 | 7204 | #ifdef IXGBE_FCOE |
9e903e08 | 7205 | size = min_t(unsigned int, data_len, skb_frag_size(frag)); |
d3d00239 | 7206 | #else |
9e903e08 | 7207 | size = skb_frag_size(frag); |
d3d00239 AD |
7208 | #endif |
7209 | data_len -= size; | |
9a799d71 | 7210 | |
729739b7 AD |
7211 | dma = skb_frag_dma_map(tx_ring->dev, frag, 0, size, |
7212 | DMA_TO_DEVICE); | |
9a799d71 | 7213 | |
729739b7 | 7214 | tx_buffer = &tx_ring->tx_buffer_info[i]; |
729739b7 | 7215 | } |
9a799d71 | 7216 | |
729739b7 | 7217 | /* write last descriptor with RS and EOP bits */ |
472148c3 AD |
7218 | cmd_type |= size | IXGBE_TXD_CMD; |
7219 | tx_desc->read.cmd_type_len = cpu_to_le32(cmd_type); | |
eacd73f7 | 7220 | |
091a6246 | 7221 | netdev_tx_sent_queue(txring_txq(tx_ring), first->bytecount); |
b2d96e0a | 7222 | |
d3d00239 AD |
7223 | /* set the timestamp */ |
7224 | first->time_stamp = jiffies; | |
9a799d71 AK |
7225 | |
7226 | /* | |
729739b7 AD |
7227 | * Force memory writes to complete before letting h/w know there |
7228 | * are new descriptors to fetch. (Only applicable for weak-ordered | |
7229 | * memory model archs, such as IA-64). | |
7230 | * | |
7231 | * We also need this memory barrier to make certain all of the | |
7232 | * status bits have been updated before next_to_watch is written. | |
9a799d71 AK |
7233 | */ |
7234 | wmb(); | |
7235 | ||
d3d00239 AD |
7236 | /* set next_to_watch value indicating a packet is present */ |
7237 | first->next_to_watch = tx_desc; | |
7238 | ||
729739b7 AD |
7239 | i++; |
7240 | if (i == tx_ring->count) | |
7241 | i = 0; | |
7242 | ||
7243 | tx_ring->next_to_use = i; | |
7244 | ||
2367a173 DB |
7245 | ixgbe_maybe_stop_tx(tx_ring, DESC_NEEDED); |
7246 | ||
7247 | if (netif_xmit_stopped(txring_txq(tx_ring)) || !skb->xmit_more) { | |
ad435ec6 AD |
7248 | writel(i, tx_ring->tail); |
7249 | ||
7250 | /* we need this if more than one processor can write to our tail | |
7251 | * at a time, it synchronizes IO on IA64/Altix systems | |
7252 | */ | |
7253 | mmiowb(); | |
9c938cdd | 7254 | } |
2367a173 | 7255 | |
d3d00239 AD |
7256 | return; |
7257 | dma_error: | |
729739b7 | 7258 | dev_err(tx_ring->dev, "TX DMA map failed\n"); |
d3d00239 AD |
7259 | |
7260 | /* clear dma mappings for failed tx_buffer_info map */ | |
7261 | for (;;) { | |
729739b7 AD |
7262 | tx_buffer = &tx_ring->tx_buffer_info[i]; |
7263 | ixgbe_unmap_and_free_tx_resource(tx_ring, tx_buffer); | |
7264 | if (tx_buffer == first) | |
d3d00239 AD |
7265 | break; |
7266 | if (i == 0) | |
7267 | i = tx_ring->count; | |
7268 | i--; | |
7269 | } | |
7270 | ||
d3d00239 | 7271 | tx_ring->next_to_use = i; |
9a799d71 AK |
7272 | } |
7273 | ||
fd0db0ed | 7274 | static void ixgbe_atr(struct ixgbe_ring *ring, |
244e27ad | 7275 | struct ixgbe_tx_buffer *first) |
69830529 AD |
7276 | { |
7277 | struct ixgbe_q_vector *q_vector = ring->q_vector; | |
7278 | union ixgbe_atr_hash_dword input = { .dword = 0 }; | |
7279 | union ixgbe_atr_hash_dword common = { .dword = 0 }; | |
7280 | union { | |
7281 | unsigned char *network; | |
7282 | struct iphdr *ipv4; | |
7283 | struct ipv6hdr *ipv6; | |
7284 | } hdr; | |
ee9e0f0b | 7285 | struct tcphdr *th; |
67359c3c MR |
7286 | struct sk_buff *skb; |
7287 | #ifdef CONFIG_IXGBE_VXLAN | |
7288 | u8 encap = false; | |
7289 | #endif /* CONFIG_IXGBE_VXLAN */ | |
905e4a41 | 7290 | __be16 vlan_id; |
c4cf55e5 | 7291 | |
69830529 AD |
7292 | /* if ring doesn't have a interrupt vector, cannot perform ATR */ |
7293 | if (!q_vector) | |
7294 | return; | |
7295 | ||
7296 | /* do nothing if sampling is disabled */ | |
7297 | if (!ring->atr_sample_rate) | |
d3ead241 | 7298 | return; |
c4cf55e5 | 7299 | |
69830529 | 7300 | ring->atr_count++; |
c4cf55e5 | 7301 | |
69830529 | 7302 | /* snag network header to get L4 type and address */ |
67359c3c MR |
7303 | skb = first->skb; |
7304 | hdr.network = skb_network_header(skb); | |
7305 | if (skb->encapsulation) { | |
7306 | #ifdef CONFIG_IXGBE_VXLAN | |
7307 | struct ixgbe_adapter *adapter = q_vector->adapter; | |
69830529 | 7308 | |
67359c3c MR |
7309 | if (!adapter->vxlan_port) |
7310 | return; | |
7311 | if (first->protocol != htons(ETH_P_IP) || | |
7312 | hdr.ipv4->version != IPVERSION || | |
7313 | hdr.ipv4->protocol != IPPROTO_UDP) { | |
7314 | return; | |
7315 | } | |
7316 | if (ntohs(udp_hdr(skb)->dest) != adapter->vxlan_port) | |
7317 | return; | |
7318 | encap = true; | |
7319 | hdr.network = skb_inner_network_header(skb); | |
7320 | th = inner_tcp_hdr(skb); | |
7321 | #else | |
69830529 | 7322 | return; |
67359c3c MR |
7323 | #endif /* CONFIG_IXGBE_VXLAN */ |
7324 | } else { | |
7325 | /* Currently only IPv4/IPv6 with TCP is supported */ | |
7326 | if ((first->protocol != htons(ETH_P_IPV6) || | |
7327 | hdr.ipv6->nexthdr != IPPROTO_TCP) && | |
7328 | (first->protocol != htons(ETH_P_IP) || | |
7329 | hdr.ipv4->protocol != IPPROTO_TCP)) | |
7330 | return; | |
7331 | th = tcp_hdr(skb); | |
7332 | } | |
c4cf55e5 | 7333 | |
66f32a8b AD |
7334 | /* skip this packet since it is invalid or the socket is closing */ |
7335 | if (!th || th->fin) | |
69830529 AD |
7336 | return; |
7337 | ||
7338 | /* sample on all syn packets or once every atr sample count */ | |
7339 | if (!th->syn && (ring->atr_count < ring->atr_sample_rate)) | |
7340 | return; | |
7341 | ||
7342 | /* reset sample count */ | |
7343 | ring->atr_count = 0; | |
7344 | ||
244e27ad | 7345 | vlan_id = htons(first->tx_flags >> IXGBE_TX_FLAGS_VLAN_SHIFT); |
69830529 AD |
7346 | |
7347 | /* | |
7348 | * src and dst are inverted, think how the receiver sees them | |
7349 | * | |
7350 | * The input is broken into two sections, a non-compressed section | |
7351 | * containing vm_pool, vlan_id, and flow_type. The rest of the data | |
7352 | * is XORed together and stored in the compressed dword. | |
7353 | */ | |
7354 | input.formatted.vlan_id = vlan_id; | |
7355 | ||
7356 | /* | |
7357 | * since src port and flex bytes occupy the same word XOR them together | |
7358 | * and write the value to source port portion of compressed dword | |
7359 | */ | |
244e27ad | 7360 | if (first->tx_flags & (IXGBE_TX_FLAGS_SW_VLAN | IXGBE_TX_FLAGS_HW_VLAN)) |
a1108ffd | 7361 | common.port.src ^= th->dest ^ htons(ETH_P_8021Q); |
69830529 | 7362 | else |
244e27ad | 7363 | common.port.src ^= th->dest ^ first->protocol; |
69830529 AD |
7364 | common.port.dst ^= th->source; |
7365 | ||
a1108ffd | 7366 | if (first->protocol == htons(ETH_P_IP)) { |
69830529 AD |
7367 | input.formatted.flow_type = IXGBE_ATR_FLOW_TYPE_TCPV4; |
7368 | common.ip ^= hdr.ipv4->saddr ^ hdr.ipv4->daddr; | |
7369 | } else { | |
7370 | input.formatted.flow_type = IXGBE_ATR_FLOW_TYPE_TCPV6; | |
7371 | common.ip ^= hdr.ipv6->saddr.s6_addr32[0] ^ | |
7372 | hdr.ipv6->saddr.s6_addr32[1] ^ | |
7373 | hdr.ipv6->saddr.s6_addr32[2] ^ | |
7374 | hdr.ipv6->saddr.s6_addr32[3] ^ | |
7375 | hdr.ipv6->daddr.s6_addr32[0] ^ | |
7376 | hdr.ipv6->daddr.s6_addr32[1] ^ | |
7377 | hdr.ipv6->daddr.s6_addr32[2] ^ | |
7378 | hdr.ipv6->daddr.s6_addr32[3]; | |
7379 | } | |
c4cf55e5 | 7380 | |
67359c3c MR |
7381 | #ifdef CONFIG_IXGBE_VXLAN |
7382 | if (encap) | |
7383 | input.formatted.flow_type |= IXGBE_ATR_L4TYPE_TUNNEL_MASK; | |
7384 | #endif /* CONFIG_IXGBE_VXLAN */ | |
7385 | ||
c4cf55e5 | 7386 | /* This assumes the Rx queue and Tx queue are bound to the same CPU */ |
69830529 AD |
7387 | ixgbe_fdir_add_signature_filter_82599(&q_vector->adapter->hw, |
7388 | input, common, ring->queue_index); | |
c4cf55e5 PWJ |
7389 | } |
7390 | ||
f663dd9a | 7391 | static u16 ixgbe_select_queue(struct net_device *dev, struct sk_buff *skb, |
99932d4f | 7392 | void *accel_priv, select_queue_fallback_t fallback) |
09a3b1f8 | 7393 | { |
f663dd9a JW |
7394 | struct ixgbe_fwd_adapter *fwd_adapter = accel_priv; |
7395 | #ifdef IXGBE_FCOE | |
97488bd1 AD |
7396 | struct ixgbe_adapter *adapter; |
7397 | struct ixgbe_ring_feature *f; | |
7398 | int txq; | |
f663dd9a JW |
7399 | #endif |
7400 | ||
7401 | if (fwd_adapter) | |
7402 | return skb->queue_mapping + fwd_adapter->tx_base_queue; | |
7403 | ||
7404 | #ifdef IXGBE_FCOE | |
5e09a105 | 7405 | |
97488bd1 AD |
7406 | /* |
7407 | * only execute the code below if protocol is FCoE | |
7408 | * or FIP and we have FCoE enabled on the adapter | |
7409 | */ | |
7410 | switch (vlan_get_protocol(skb)) { | |
a1108ffd JP |
7411 | case htons(ETH_P_FCOE): |
7412 | case htons(ETH_P_FIP): | |
97488bd1 | 7413 | adapter = netdev_priv(dev); |
c087663e | 7414 | |
97488bd1 AD |
7415 | if (adapter->flags & IXGBE_FLAG_FCOE_ENABLED) |
7416 | break; | |
7417 | default: | |
99932d4f | 7418 | return fallback(dev, skb); |
97488bd1 | 7419 | } |
c087663e | 7420 | |
97488bd1 | 7421 | f = &adapter->ring_feature[RING_F_FCOE]; |
c087663e | 7422 | |
97488bd1 AD |
7423 | txq = skb_rx_queue_recorded(skb) ? skb_get_rx_queue(skb) : |
7424 | smp_processor_id(); | |
56075a98 | 7425 | |
97488bd1 AD |
7426 | while (txq >= f->indices) |
7427 | txq -= f->indices; | |
c4cf55e5 | 7428 | |
97488bd1 | 7429 | return txq + f->offset; |
f663dd9a | 7430 | #else |
99932d4f | 7431 | return fallback(dev, skb); |
f663dd9a | 7432 | #endif |
09a3b1f8 SH |
7433 | } |
7434 | ||
fc77dc3c | 7435 | netdev_tx_t ixgbe_xmit_frame_ring(struct sk_buff *skb, |
84418e3b AD |
7436 | struct ixgbe_adapter *adapter, |
7437 | struct ixgbe_ring *tx_ring) | |
9a799d71 | 7438 | { |
d3d00239 | 7439 | struct ixgbe_tx_buffer *first; |
5f715823 | 7440 | int tso; |
d3d00239 | 7441 | u32 tx_flags = 0; |
a535c30e | 7442 | unsigned short f; |
a535c30e | 7443 | u16 count = TXD_USE_COUNT(skb_headlen(skb)); |
66f32a8b | 7444 | __be16 protocol = skb->protocol; |
63544e9c | 7445 | u8 hdr_len = 0; |
5e09a105 | 7446 | |
a535c30e AD |
7447 | /* |
7448 | * need: 1 descriptor per page * PAGE_SIZE/IXGBE_MAX_DATA_PER_TXD, | |
24ddd967 | 7449 | * + 1 desc for skb_headlen/IXGBE_MAX_DATA_PER_TXD, |
a535c30e AD |
7450 | * + 2 desc gap to keep tail from touching head, |
7451 | * + 1 desc for context descriptor, | |
7452 | * otherwise try next time | |
7453 | */ | |
a535c30e AD |
7454 | for (f = 0; f < skb_shinfo(skb)->nr_frags; f++) |
7455 | count += TXD_USE_COUNT(skb_shinfo(skb)->frags[f].size); | |
7f66162b | 7456 | |
a535c30e AD |
7457 | if (ixgbe_maybe_stop_tx(tx_ring, count + 3)) { |
7458 | tx_ring->tx_stats.tx_busy++; | |
7459 | return NETDEV_TX_BUSY; | |
7460 | } | |
7461 | ||
fd0db0ed AD |
7462 | /* record the location of the first descriptor for this packet */ |
7463 | first = &tx_ring->tx_buffer_info[tx_ring->next_to_use]; | |
7464 | first->skb = skb; | |
091a6246 AD |
7465 | first->bytecount = skb->len; |
7466 | first->gso_segs = 1; | |
fd0db0ed | 7467 | |
66f32a8b | 7468 | /* if we have a HW VLAN tag being added default to the HW one */ |
df8a39de JP |
7469 | if (skb_vlan_tag_present(skb)) { |
7470 | tx_flags |= skb_vlan_tag_get(skb) << IXGBE_TX_FLAGS_VLAN_SHIFT; | |
66f32a8b AD |
7471 | tx_flags |= IXGBE_TX_FLAGS_HW_VLAN; |
7472 | /* else if it is a SW VLAN check the next protocol and store the tag */ | |
a1108ffd | 7473 | } else if (protocol == htons(ETH_P_8021Q)) { |
66f32a8b AD |
7474 | struct vlan_hdr *vhdr, _vhdr; |
7475 | vhdr = skb_header_pointer(skb, ETH_HLEN, sizeof(_vhdr), &_vhdr); | |
7476 | if (!vhdr) | |
7477 | goto out_drop; | |
7478 | ||
9e0c5648 AD |
7479 | tx_flags |= ntohs(vhdr->h_vlan_TCI) << |
7480 | IXGBE_TX_FLAGS_VLAN_SHIFT; | |
66f32a8b AD |
7481 | tx_flags |= IXGBE_TX_FLAGS_SW_VLAN; |
7482 | } | |
0213668f | 7483 | protocol = vlan_get_protocol(skb); |
66f32a8b | 7484 | |
d5234933 MR |
7485 | if (unlikely(skb_shinfo(skb)->tx_flags & SKBTX_HW_TSTAMP) && |
7486 | adapter->ptp_clock && | |
7487 | !test_and_set_bit_lock(__IXGBE_PTP_TX_IN_PROGRESS, | |
7488 | &adapter->state)) { | |
3a6a4eda JK |
7489 | skb_shinfo(skb)->tx_flags |= SKBTX_IN_PROGRESS; |
7490 | tx_flags |= IXGBE_TX_FLAGS_TSTAMP; | |
891dc082 JK |
7491 | |
7492 | /* schedule check for Tx timestamp */ | |
7493 | adapter->ptp_tx_skb = skb_get(skb); | |
7494 | adapter->ptp_tx_start = jiffies; | |
7495 | schedule_work(&adapter->ptp_tx_work); | |
3a6a4eda | 7496 | } |
3a6a4eda | 7497 | |
ff29a86e JK |
7498 | skb_tx_timestamp(skb); |
7499 | ||
9e0c5648 AD |
7500 | #ifdef CONFIG_PCI_IOV |
7501 | /* | |
7502 | * Use the l2switch_enable flag - would be false if the DMA | |
7503 | * Tx switch had been disabled. | |
7504 | */ | |
7505 | if (adapter->flags & IXGBE_FLAG_SRIOV_ENABLED) | |
472148c3 | 7506 | tx_flags |= IXGBE_TX_FLAGS_CC; |
9e0c5648 AD |
7507 | |
7508 | #endif | |
32701dc2 | 7509 | /* DCB maps skb priorities 0-7 onto 3 bit PCP of VLAN tag. */ |
66f32a8b | 7510 | if ((adapter->flags & IXGBE_FLAG_DCB_ENABLED) && |
09dca476 AD |
7511 | ((tx_flags & (IXGBE_TX_FLAGS_HW_VLAN | IXGBE_TX_FLAGS_SW_VLAN)) || |
7512 | (skb->priority != TC_PRIO_CONTROL))) { | |
66f32a8b | 7513 | tx_flags &= ~IXGBE_TX_FLAGS_VLAN_PRIO_MASK; |
32701dc2 JF |
7514 | tx_flags |= (skb->priority & 0x7) << |
7515 | IXGBE_TX_FLAGS_VLAN_PRIO_SHIFT; | |
66f32a8b AD |
7516 | if (tx_flags & IXGBE_TX_FLAGS_SW_VLAN) { |
7517 | struct vlan_ethhdr *vhdr; | |
2049e1f6 FR |
7518 | |
7519 | if (skb_cow_head(skb, 0)) | |
66f32a8b AD |
7520 | goto out_drop; |
7521 | vhdr = (struct vlan_ethhdr *)skb->data; | |
7522 | vhdr->h_vlan_TCI = htons(tx_flags >> | |
7523 | IXGBE_TX_FLAGS_VLAN_SHIFT); | |
7524 | } else { | |
7525 | tx_flags |= IXGBE_TX_FLAGS_HW_VLAN; | |
2f90b865 | 7526 | } |
9a799d71 | 7527 | } |
eacd73f7 | 7528 | |
244e27ad AD |
7529 | /* record initial flags and protocol */ |
7530 | first->tx_flags = tx_flags; | |
7531 | first->protocol = protocol; | |
7532 | ||
eacd73f7 | 7533 | #ifdef IXGBE_FCOE |
66f32a8b | 7534 | /* setup tx offload for FCoE */ |
a1108ffd | 7535 | if ((protocol == htons(ETH_P_FCOE)) && |
a58915c7 | 7536 | (tx_ring->netdev->features & (NETIF_F_FSO | NETIF_F_FCOE_CRC))) { |
244e27ad | 7537 | tso = ixgbe_fso(tx_ring, first, &hdr_len); |
897ab156 AD |
7538 | if (tso < 0) |
7539 | goto out_drop; | |
9a799d71 | 7540 | |
66f32a8b | 7541 | goto xmit_fcoe; |
eacd73f7 | 7542 | } |
9a799d71 | 7543 | |
66f32a8b | 7544 | #endif /* IXGBE_FCOE */ |
244e27ad | 7545 | tso = ixgbe_tso(tx_ring, first, &hdr_len); |
66f32a8b | 7546 | if (tso < 0) |
897ab156 | 7547 | goto out_drop; |
244e27ad AD |
7548 | else if (!tso) |
7549 | ixgbe_tx_csum(tx_ring, first); | |
66f32a8b AD |
7550 | |
7551 | /* add the ATR filter if ATR is on */ | |
7552 | if (test_bit(__IXGBE_TX_FDIR_INIT_DONE, &tx_ring->state)) | |
244e27ad | 7553 | ixgbe_atr(tx_ring, first); |
66f32a8b AD |
7554 | |
7555 | #ifdef IXGBE_FCOE | |
7556 | xmit_fcoe: | |
7557 | #endif /* IXGBE_FCOE */ | |
244e27ad | 7558 | ixgbe_tx_map(tx_ring, first, hdr_len); |
d3d00239 | 7559 | |
9a799d71 | 7560 | return NETDEV_TX_OK; |
897ab156 AD |
7561 | |
7562 | out_drop: | |
fd0db0ed AD |
7563 | dev_kfree_skb_any(first->skb); |
7564 | first->skb = NULL; | |
7565 | ||
897ab156 | 7566 | return NETDEV_TX_OK; |
9a799d71 AK |
7567 | } |
7568 | ||
2a47fa45 JF |
7569 | static netdev_tx_t __ixgbe_xmit_frame(struct sk_buff *skb, |
7570 | struct net_device *netdev, | |
7571 | struct ixgbe_ring *ring) | |
84418e3b AD |
7572 | { |
7573 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
7574 | struct ixgbe_ring *tx_ring; | |
7575 | ||
a50c29dd AD |
7576 | /* |
7577 | * The minimum packet size for olinfo paylen is 17 so pad the skb | |
7578 | * in order to meet this minimum size requirement. | |
7579 | */ | |
a94d9e22 AD |
7580 | if (skb_put_padto(skb, 17)) |
7581 | return NETDEV_TX_OK; | |
a50c29dd | 7582 | |
2a47fa45 JF |
7583 | tx_ring = ring ? ring : adapter->tx_ring[skb->queue_mapping]; |
7584 | ||
fc77dc3c | 7585 | return ixgbe_xmit_frame_ring(skb, adapter, tx_ring); |
84418e3b AD |
7586 | } |
7587 | ||
2a47fa45 JF |
7588 | static netdev_tx_t ixgbe_xmit_frame(struct sk_buff *skb, |
7589 | struct net_device *netdev) | |
7590 | { | |
7591 | return __ixgbe_xmit_frame(skb, netdev, NULL); | |
7592 | } | |
7593 | ||
9a799d71 AK |
7594 | /** |
7595 | * ixgbe_set_mac - Change the Ethernet Address of the NIC | |
7596 | * @netdev: network interface device structure | |
7597 | * @p: pointer to an address structure | |
7598 | * | |
7599 | * Returns 0 on success, negative on failure | |
7600 | **/ | |
7601 | static int ixgbe_set_mac(struct net_device *netdev, void *p) | |
7602 | { | |
7603 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
b4617240 | 7604 | struct ixgbe_hw *hw = &adapter->hw; |
9a799d71 | 7605 | struct sockaddr *addr = p; |
5d7daa35 | 7606 | int ret; |
9a799d71 AK |
7607 | |
7608 | if (!is_valid_ether_addr(addr->sa_data)) | |
7609 | return -EADDRNOTAVAIL; | |
7610 | ||
5d7daa35 | 7611 | ixgbe_del_mac_filter(adapter, hw->mac.addr, VMDQ_P(0)); |
9a799d71 | 7612 | memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len); |
b4617240 | 7613 | memcpy(hw->mac.addr, addr->sa_data, netdev->addr_len); |
9a799d71 | 7614 | |
5d7daa35 JK |
7615 | ret = ixgbe_add_mac_filter(adapter, hw->mac.addr, VMDQ_P(0)); |
7616 | return ret > 0 ? 0 : ret; | |
9a799d71 AK |
7617 | } |
7618 | ||
6b73e10d BH |
7619 | static int |
7620 | ixgbe_mdio_read(struct net_device *netdev, int prtad, int devad, u16 addr) | |
7621 | { | |
7622 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
7623 | struct ixgbe_hw *hw = &adapter->hw; | |
7624 | u16 value; | |
7625 | int rc; | |
7626 | ||
7627 | if (prtad != hw->phy.mdio.prtad) | |
7628 | return -EINVAL; | |
7629 | rc = hw->phy.ops.read_reg(hw, addr, devad, &value); | |
7630 | if (!rc) | |
7631 | rc = value; | |
7632 | return rc; | |
7633 | } | |
7634 | ||
7635 | static int ixgbe_mdio_write(struct net_device *netdev, int prtad, int devad, | |
7636 | u16 addr, u16 value) | |
7637 | { | |
7638 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
7639 | struct ixgbe_hw *hw = &adapter->hw; | |
7640 | ||
7641 | if (prtad != hw->phy.mdio.prtad) | |
7642 | return -EINVAL; | |
7643 | return hw->phy.ops.write_reg(hw, addr, devad, value); | |
7644 | } | |
7645 | ||
7646 | static int ixgbe_ioctl(struct net_device *netdev, struct ifreq *req, int cmd) | |
7647 | { | |
7648 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
7649 | ||
3a6a4eda | 7650 | switch (cmd) { |
3a6a4eda | 7651 | case SIOCSHWTSTAMP: |
93501d48 JK |
7652 | return ixgbe_ptp_set_ts_config(adapter, req); |
7653 | case SIOCGHWTSTAMP: | |
7654 | return ixgbe_ptp_get_ts_config(adapter, req); | |
3a6a4eda JK |
7655 | default: |
7656 | return mdio_mii_ioctl(&adapter->hw.phy.mdio, if_mii(req), cmd); | |
7657 | } | |
6b73e10d BH |
7658 | } |
7659 | ||
0365e6e4 PW |
7660 | /** |
7661 | * ixgbe_add_sanmac_netdev - Add the SAN MAC address to the corresponding | |
31278e71 | 7662 | * netdev->dev_addrs |
0365e6e4 PW |
7663 | * @netdev: network interface device structure |
7664 | * | |
7665 | * Returns non-zero on failure | |
7666 | **/ | |
7667 | static int ixgbe_add_sanmac_netdev(struct net_device *dev) | |
7668 | { | |
7669 | int err = 0; | |
7670 | struct ixgbe_adapter *adapter = netdev_priv(dev); | |
7fa7c9dc | 7671 | struct ixgbe_hw *hw = &adapter->hw; |
0365e6e4 | 7672 | |
7fa7c9dc | 7673 | if (is_valid_ether_addr(hw->mac.san_addr)) { |
0365e6e4 | 7674 | rtnl_lock(); |
7fa7c9dc | 7675 | err = dev_addr_add(dev, hw->mac.san_addr, NETDEV_HW_ADDR_T_SAN); |
0365e6e4 | 7676 | rtnl_unlock(); |
7fa7c9dc AD |
7677 | |
7678 | /* update SAN MAC vmdq pool selection */ | |
7679 | hw->mac.ops.set_vmdq_san_mac(hw, VMDQ_P(0)); | |
0365e6e4 PW |
7680 | } |
7681 | return err; | |
7682 | } | |
7683 | ||
7684 | /** | |
7685 | * ixgbe_del_sanmac_netdev - Removes the SAN MAC address to the corresponding | |
31278e71 | 7686 | * netdev->dev_addrs |
0365e6e4 PW |
7687 | * @netdev: network interface device structure |
7688 | * | |
7689 | * Returns non-zero on failure | |
7690 | **/ | |
7691 | static int ixgbe_del_sanmac_netdev(struct net_device *dev) | |
7692 | { | |
7693 | int err = 0; | |
7694 | struct ixgbe_adapter *adapter = netdev_priv(dev); | |
7695 | struct ixgbe_mac_info *mac = &adapter->hw.mac; | |
7696 | ||
7697 | if (is_valid_ether_addr(mac->san_addr)) { | |
7698 | rtnl_lock(); | |
7699 | err = dev_addr_del(dev, mac->san_addr, NETDEV_HW_ADDR_T_SAN); | |
7700 | rtnl_unlock(); | |
7701 | } | |
7702 | return err; | |
7703 | } | |
7704 | ||
9a799d71 AK |
7705 | #ifdef CONFIG_NET_POLL_CONTROLLER |
7706 | /* | |
7707 | * Polling 'interrupt' - used by things like netconsole to send skbs | |
7708 | * without having to re-enable interrupts. It's not called while | |
7709 | * the interrupt routine is executing. | |
7710 | */ | |
7711 | static void ixgbe_netpoll(struct net_device *netdev) | |
7712 | { | |
7713 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
8f9a7167 | 7714 | int i; |
9a799d71 | 7715 | |
1a647bd2 AD |
7716 | /* if interface is down do nothing */ |
7717 | if (test_bit(__IXGBE_DOWN, &adapter->state)) | |
7718 | return; | |
7719 | ||
856f606e AD |
7720 | /* loop through and schedule all active queues */ |
7721 | for (i = 0; i < adapter->num_q_vectors; i++) | |
7722 | ixgbe_msix_clean_rings(0, adapter->q_vector[i]); | |
9a799d71 | 7723 | } |
9a799d71 | 7724 | |
581330ba | 7725 | #endif |
de1036b1 ED |
7726 | static struct rtnl_link_stats64 *ixgbe_get_stats64(struct net_device *netdev, |
7727 | struct rtnl_link_stats64 *stats) | |
7728 | { | |
7729 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
7730 | int i; | |
7731 | ||
1a51502b | 7732 | rcu_read_lock(); |
de1036b1 | 7733 | for (i = 0; i < adapter->num_rx_queues; i++) { |
1a51502b | 7734 | struct ixgbe_ring *ring = ACCESS_ONCE(adapter->rx_ring[i]); |
de1036b1 ED |
7735 | u64 bytes, packets; |
7736 | unsigned int start; | |
7737 | ||
1a51502b ED |
7738 | if (ring) { |
7739 | do { | |
57a7744e | 7740 | start = u64_stats_fetch_begin_irq(&ring->syncp); |
1a51502b ED |
7741 | packets = ring->stats.packets; |
7742 | bytes = ring->stats.bytes; | |
57a7744e | 7743 | } while (u64_stats_fetch_retry_irq(&ring->syncp, start)); |
1a51502b ED |
7744 | stats->rx_packets += packets; |
7745 | stats->rx_bytes += bytes; | |
7746 | } | |
de1036b1 | 7747 | } |
1ac9ad13 ED |
7748 | |
7749 | for (i = 0; i < adapter->num_tx_queues; i++) { | |
7750 | struct ixgbe_ring *ring = ACCESS_ONCE(adapter->tx_ring[i]); | |
7751 | u64 bytes, packets; | |
7752 | unsigned int start; | |
7753 | ||
7754 | if (ring) { | |
7755 | do { | |
57a7744e | 7756 | start = u64_stats_fetch_begin_irq(&ring->syncp); |
1ac9ad13 ED |
7757 | packets = ring->stats.packets; |
7758 | bytes = ring->stats.bytes; | |
57a7744e | 7759 | } while (u64_stats_fetch_retry_irq(&ring->syncp, start)); |
1ac9ad13 ED |
7760 | stats->tx_packets += packets; |
7761 | stats->tx_bytes += bytes; | |
7762 | } | |
7763 | } | |
1a51502b | 7764 | rcu_read_unlock(); |
de1036b1 ED |
7765 | /* following stats updated by ixgbe_watchdog_task() */ |
7766 | stats->multicast = netdev->stats.multicast; | |
7767 | stats->rx_errors = netdev->stats.rx_errors; | |
7768 | stats->rx_length_errors = netdev->stats.rx_length_errors; | |
7769 | stats->rx_crc_errors = netdev->stats.rx_crc_errors; | |
7770 | stats->rx_missed_errors = netdev->stats.rx_missed_errors; | |
7771 | return stats; | |
7772 | } | |
7773 | ||
8af3c33f | 7774 | #ifdef CONFIG_IXGBE_DCB |
49ce9c2c BH |
7775 | /** |
7776 | * ixgbe_validate_rtr - verify 802.1Qp to Rx packet buffer mapping is valid. | |
7777 | * @adapter: pointer to ixgbe_adapter | |
8b1c0b24 JF |
7778 | * @tc: number of traffic classes currently enabled |
7779 | * | |
7780 | * Configure a valid 802.1Qp to Rx packet buffer mapping ie confirm | |
7781 | * 802.1Q priority maps to a packet buffer that exists. | |
7782 | */ | |
7783 | static void ixgbe_validate_rtr(struct ixgbe_adapter *adapter, u8 tc) | |
7784 | { | |
7785 | struct ixgbe_hw *hw = &adapter->hw; | |
7786 | u32 reg, rsave; | |
7787 | int i; | |
7788 | ||
7789 | /* 82598 have a static priority to TC mapping that can not | |
7790 | * be changed so no validation is needed. | |
7791 | */ | |
7792 | if (hw->mac.type == ixgbe_mac_82598EB) | |
7793 | return; | |
7794 | ||
7795 | reg = IXGBE_READ_REG(hw, IXGBE_RTRUP2TC); | |
7796 | rsave = reg; | |
7797 | ||
7798 | for (i = 0; i < MAX_TRAFFIC_CLASS; i++) { | |
7799 | u8 up2tc = reg >> (i * IXGBE_RTRUP2TC_UP_SHIFT); | |
7800 | ||
7801 | /* If up2tc is out of bounds default to zero */ | |
7802 | if (up2tc > tc) | |
7803 | reg &= ~(0x7 << IXGBE_RTRUP2TC_UP_SHIFT); | |
7804 | } | |
7805 | ||
7806 | if (reg != rsave) | |
7807 | IXGBE_WRITE_REG(hw, IXGBE_RTRUP2TC, reg); | |
7808 | ||
7809 | return; | |
7810 | } | |
7811 | ||
02debdc9 AD |
7812 | /** |
7813 | * ixgbe_set_prio_tc_map - Configure netdev prio tc map | |
7814 | * @adapter: Pointer to adapter struct | |
7815 | * | |
7816 | * Populate the netdev user priority to tc map | |
7817 | */ | |
7818 | static void ixgbe_set_prio_tc_map(struct ixgbe_adapter *adapter) | |
7819 | { | |
7820 | struct net_device *dev = adapter->netdev; | |
7821 | struct ixgbe_dcb_config *dcb_cfg = &adapter->dcb_cfg; | |
7822 | struct ieee_ets *ets = adapter->ixgbe_ieee_ets; | |
7823 | u8 prio; | |
7824 | ||
7825 | for (prio = 0; prio < MAX_USER_PRIORITY; prio++) { | |
7826 | u8 tc = 0; | |
7827 | ||
7828 | if (adapter->dcbx_cap & DCB_CAP_DCBX_VER_CEE) | |
7829 | tc = ixgbe_dcb_get_tc_from_up(dcb_cfg, 0, prio); | |
7830 | else if (ets) | |
7831 | tc = ets->prio_tc[prio]; | |
7832 | ||
7833 | netdev_set_prio_tc_map(dev, prio, tc); | |
7834 | } | |
7835 | } | |
7836 | ||
cca73c59 | 7837 | #endif /* CONFIG_IXGBE_DCB */ |
49ce9c2c BH |
7838 | /** |
7839 | * ixgbe_setup_tc - configure net_device for multiple traffic classes | |
8b1c0b24 JF |
7840 | * |
7841 | * @netdev: net device to configure | |
7842 | * @tc: number of traffic classes to enable | |
7843 | */ | |
7844 | int ixgbe_setup_tc(struct net_device *dev, u8 tc) | |
7845 | { | |
8b1c0b24 JF |
7846 | struct ixgbe_adapter *adapter = netdev_priv(dev); |
7847 | struct ixgbe_hw *hw = &adapter->hw; | |
2a47fa45 | 7848 | bool pools; |
8b1c0b24 | 7849 | |
8b1c0b24 | 7850 | /* Hardware supports up to 8 traffic classes */ |
4de2a022 | 7851 | if (tc > adapter->dcb_cfg.num_tcs.pg_tcs || |
581330ba AD |
7852 | (hw->mac.type == ixgbe_mac_82598EB && |
7853 | tc < MAX_TRAFFIC_CLASS)) | |
8b1c0b24 JF |
7854 | return -EINVAL; |
7855 | ||
2a47fa45 JF |
7856 | pools = (find_first_zero_bit(&adapter->fwd_bitmask, 32) > 1); |
7857 | if (tc && pools && adapter->num_rx_pools > IXGBE_MAX_DCBMACVLANS) | |
7858 | return -EBUSY; | |
7859 | ||
8b1c0b24 | 7860 | /* Hardware has to reinitialize queues and interrupts to |
52f33af8 | 7861 | * match packet buffer alignment. Unfortunately, the |
8b1c0b24 JF |
7862 | * hardware is not flexible enough to do this dynamically. |
7863 | */ | |
7864 | if (netif_running(dev)) | |
7865 | ixgbe_close(dev); | |
7866 | ixgbe_clear_interrupt_scheme(adapter); | |
7867 | ||
cca73c59 | 7868 | #ifdef CONFIG_IXGBE_DCB |
e7589eab | 7869 | if (tc) { |
8b1c0b24 | 7870 | netdev_set_num_tc(dev, tc); |
02debdc9 AD |
7871 | ixgbe_set_prio_tc_map(adapter); |
7872 | ||
e7589eab | 7873 | adapter->flags |= IXGBE_FLAG_DCB_ENABLED; |
e7589eab | 7874 | |
943561d3 AD |
7875 | if (adapter->hw.mac.type == ixgbe_mac_82598EB) { |
7876 | adapter->last_lfc_mode = adapter->hw.fc.requested_mode; | |
e7589eab | 7877 | adapter->hw.fc.requested_mode = ixgbe_fc_none; |
943561d3 | 7878 | } |
e7589eab | 7879 | } else { |
8b1c0b24 | 7880 | netdev_reset_tc(dev); |
02debdc9 | 7881 | |
943561d3 AD |
7882 | if (adapter->hw.mac.type == ixgbe_mac_82598EB) |
7883 | adapter->hw.fc.requested_mode = adapter->last_lfc_mode; | |
e7589eab JF |
7884 | |
7885 | adapter->flags &= ~IXGBE_FLAG_DCB_ENABLED; | |
e7589eab JF |
7886 | |
7887 | adapter->temp_dcb_cfg.pfc_mode_enable = false; | |
7888 | adapter->dcb_cfg.pfc_mode_enable = false; | |
7889 | } | |
7890 | ||
8b1c0b24 | 7891 | ixgbe_validate_rtr(adapter, tc); |
cca73c59 AD |
7892 | |
7893 | #endif /* CONFIG_IXGBE_DCB */ | |
7894 | ixgbe_init_interrupt_scheme(adapter); | |
7895 | ||
8b1c0b24 | 7896 | if (netif_running(dev)) |
cca73c59 | 7897 | return ixgbe_open(dev); |
8b1c0b24 JF |
7898 | |
7899 | return 0; | |
7900 | } | |
de1036b1 | 7901 | |
da36b647 GR |
7902 | #ifdef CONFIG_PCI_IOV |
7903 | void ixgbe_sriov_reinit(struct ixgbe_adapter *adapter) | |
7904 | { | |
7905 | struct net_device *netdev = adapter->netdev; | |
7906 | ||
7907 | rtnl_lock(); | |
da36b647 | 7908 | ixgbe_setup_tc(netdev, netdev_get_num_tc(netdev)); |
da36b647 GR |
7909 | rtnl_unlock(); |
7910 | } | |
7911 | ||
7912 | #endif | |
082757af DS |
7913 | void ixgbe_do_reset(struct net_device *netdev) |
7914 | { | |
7915 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
7916 | ||
7917 | if (netif_running(netdev)) | |
7918 | ixgbe_reinit_locked(adapter); | |
7919 | else | |
7920 | ixgbe_reset(adapter); | |
7921 | } | |
7922 | ||
c8f44aff | 7923 | static netdev_features_t ixgbe_fix_features(struct net_device *netdev, |
567d2de2 | 7924 | netdev_features_t features) |
082757af DS |
7925 | { |
7926 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
7927 | ||
082757af | 7928 | /* If Rx checksum is disabled, then RSC/LRO should also be disabled */ |
567d2de2 AD |
7929 | if (!(features & NETIF_F_RXCSUM)) |
7930 | features &= ~NETIF_F_LRO; | |
082757af | 7931 | |
567d2de2 AD |
7932 | /* Turn off LRO if not RSC capable */ |
7933 | if (!(adapter->flags2 & IXGBE_FLAG2_RSC_CAPABLE)) | |
7934 | features &= ~NETIF_F_LRO; | |
8e2813f5 | 7935 | |
567d2de2 | 7936 | return features; |
082757af DS |
7937 | } |
7938 | ||
c8f44aff | 7939 | static int ixgbe_set_features(struct net_device *netdev, |
567d2de2 | 7940 | netdev_features_t features) |
082757af DS |
7941 | { |
7942 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
567d2de2 | 7943 | netdev_features_t changed = netdev->features ^ features; |
082757af DS |
7944 | bool need_reset = false; |
7945 | ||
082757af | 7946 | /* Make sure RSC matches LRO, reset if change */ |
567d2de2 AD |
7947 | if (!(features & NETIF_F_LRO)) { |
7948 | if (adapter->flags2 & IXGBE_FLAG2_RSC_ENABLED) | |
082757af | 7949 | need_reset = true; |
567d2de2 AD |
7950 | adapter->flags2 &= ~IXGBE_FLAG2_RSC_ENABLED; |
7951 | } else if ((adapter->flags2 & IXGBE_FLAG2_RSC_CAPABLE) && | |
7952 | !(adapter->flags2 & IXGBE_FLAG2_RSC_ENABLED)) { | |
7953 | if (adapter->rx_itr_setting == 1 || | |
7954 | adapter->rx_itr_setting > IXGBE_MIN_RSC_ITR) { | |
7955 | adapter->flags2 |= IXGBE_FLAG2_RSC_ENABLED; | |
7956 | need_reset = true; | |
7957 | } else if ((changed ^ features) & NETIF_F_LRO) { | |
7958 | e_info(probe, "rx-usecs set too low, " | |
7959 | "disabling RSC\n"); | |
082757af DS |
7960 | } |
7961 | } | |
7962 | ||
7963 | /* | |
7964 | * Check if Flow Director n-tuple support was enabled or disabled. If | |
7965 | * the state changed, we need to reset. | |
7966 | */ | |
39cb681b AD |
7967 | switch (features & NETIF_F_NTUPLE) { |
7968 | case NETIF_F_NTUPLE: | |
567d2de2 | 7969 | /* turn off ATR, enable perfect filters and reset */ |
39cb681b AD |
7970 | if (!(adapter->flags & IXGBE_FLAG_FDIR_PERFECT_CAPABLE)) |
7971 | need_reset = true; | |
7972 | ||
567d2de2 AD |
7973 | adapter->flags &= ~IXGBE_FLAG_FDIR_HASH_CAPABLE; |
7974 | adapter->flags |= IXGBE_FLAG_FDIR_PERFECT_CAPABLE; | |
39cb681b AD |
7975 | break; |
7976 | default: | |
7977 | /* turn off perfect filters, enable ATR and reset */ | |
7978 | if (adapter->flags & IXGBE_FLAG_FDIR_PERFECT_CAPABLE) | |
7979 | need_reset = true; | |
7980 | ||
7981 | adapter->flags &= ~IXGBE_FLAG_FDIR_PERFECT_CAPABLE; | |
7982 | ||
7983 | /* We cannot enable ATR if SR-IOV is enabled */ | |
7984 | if (adapter->flags & IXGBE_FLAG_SRIOV_ENABLED) | |
7985 | break; | |
7986 | ||
7987 | /* We cannot enable ATR if we have 2 or more traffic classes */ | |
7988 | if (netdev_get_num_tc(netdev) > 1) | |
7989 | break; | |
7990 | ||
7991 | /* We cannot enable ATR if RSS is disabled */ | |
7992 | if (adapter->ring_feature[RING_F_RSS].limit <= 1) | |
7993 | break; | |
7994 | ||
7995 | /* A sample rate of 0 indicates ATR disabled */ | |
7996 | if (!adapter->atr_sample_rate) | |
7997 | break; | |
7998 | ||
7999 | adapter->flags |= IXGBE_FLAG_FDIR_HASH_CAPABLE; | |
8000 | break; | |
082757af DS |
8001 | } |
8002 | ||
f646968f | 8003 | if (features & NETIF_F_HW_VLAN_CTAG_RX) |
146d4cc9 JF |
8004 | ixgbe_vlan_strip_enable(adapter); |
8005 | else | |
8006 | ixgbe_vlan_strip_disable(adapter); | |
8007 | ||
3f2d1c0f BG |
8008 | if (changed & NETIF_F_RXALL) |
8009 | need_reset = true; | |
8010 | ||
567d2de2 | 8011 | netdev->features = features; |
67359c3c MR |
8012 | |
8013 | #ifdef CONFIG_IXGBE_VXLAN | |
8014 | if ((adapter->flags & IXGBE_FLAG_VXLAN_OFFLOAD_CAPABLE)) { | |
8015 | if (features & NETIF_F_RXCSUM) | |
8016 | adapter->flags2 |= IXGBE_FLAG2_VXLAN_REREG_NEEDED; | |
8017 | else | |
8018 | ixgbe_clear_vxlan_port(adapter); | |
8019 | } | |
8020 | #endif /* CONFIG_IXGBE_VXLAN */ | |
8021 | ||
082757af DS |
8022 | if (need_reset) |
8023 | ixgbe_do_reset(netdev); | |
8024 | ||
8025 | return 0; | |
082757af DS |
8026 | } |
8027 | ||
67359c3c | 8028 | #ifdef CONFIG_IXGBE_VXLAN |
3f207800 DS |
8029 | /** |
8030 | * ixgbe_add_vxlan_port - Get notifications about VXLAN ports that come up | |
8031 | * @dev: The port's netdev | |
8032 | * @sa_family: Socket Family that VXLAN is notifiying us about | |
8033 | * @port: New UDP port number that VXLAN started listening to | |
8034 | **/ | |
8035 | static void ixgbe_add_vxlan_port(struct net_device *dev, sa_family_t sa_family, | |
8036 | __be16 port) | |
8037 | { | |
8038 | struct ixgbe_adapter *adapter = netdev_priv(dev); | |
8039 | struct ixgbe_hw *hw = &adapter->hw; | |
8040 | u16 new_port = ntohs(port); | |
8041 | ||
67359c3c MR |
8042 | if (!(adapter->flags & IXGBE_FLAG_VXLAN_OFFLOAD_CAPABLE)) |
8043 | return; | |
8044 | ||
3f207800 DS |
8045 | if (sa_family == AF_INET6) |
8046 | return; | |
8047 | ||
67359c3c | 8048 | if (adapter->vxlan_port == new_port) |
3f207800 | 8049 | return; |
3f207800 DS |
8050 | |
8051 | if (adapter->vxlan_port) { | |
8052 | netdev_info(dev, | |
67359c3c | 8053 | "Hit Max num of VXLAN ports, not adding port %d\n", |
3f207800 DS |
8054 | new_port); |
8055 | return; | |
8056 | } | |
8057 | ||
8058 | adapter->vxlan_port = new_port; | |
8059 | IXGBE_WRITE_REG(hw, IXGBE_VXLANCTRL, new_port); | |
8060 | } | |
8061 | ||
8062 | /** | |
8063 | * ixgbe_del_vxlan_port - Get notifications about VXLAN ports that go away | |
8064 | * @dev: The port's netdev | |
8065 | * @sa_family: Socket Family that VXLAN is notifying us about | |
8066 | * @port: UDP port number that VXLAN stopped listening to | |
8067 | **/ | |
8068 | static void ixgbe_del_vxlan_port(struct net_device *dev, sa_family_t sa_family, | |
8069 | __be16 port) | |
8070 | { | |
8071 | struct ixgbe_adapter *adapter = netdev_priv(dev); | |
3f207800 DS |
8072 | u16 new_port = ntohs(port); |
8073 | ||
67359c3c MR |
8074 | if (!(adapter->flags & IXGBE_FLAG_VXLAN_OFFLOAD_CAPABLE)) |
8075 | return; | |
8076 | ||
3f207800 DS |
8077 | if (sa_family == AF_INET6) |
8078 | return; | |
8079 | ||
8080 | if (adapter->vxlan_port != new_port) { | |
8081 | netdev_info(dev, "Port %d was not found, not deleting\n", | |
8082 | new_port); | |
8083 | return; | |
8084 | } | |
8085 | ||
67359c3c MR |
8086 | ixgbe_clear_vxlan_port(adapter); |
8087 | adapter->flags2 |= IXGBE_FLAG2_VXLAN_REREG_NEEDED; | |
3f207800 | 8088 | } |
67359c3c | 8089 | #endif /* CONFIG_IXGBE_VXLAN */ |
3f207800 | 8090 | |
edc7d573 | 8091 | static int ixgbe_ndo_fdb_add(struct ndmsg *ndm, struct nlattr *tb[], |
0f4b0add | 8092 | struct net_device *dev, |
f6f6424b | 8093 | const unsigned char *addr, u16 vid, |
0f4b0add JF |
8094 | u16 flags) |
8095 | { | |
bcfd3432 | 8096 | /* guarantee we can provide a unique filter for the unicast address */ |
46acc460 | 8097 | if (is_unicast_ether_addr(addr) || is_link_local_ether_addr(addr)) { |
bcfd3432 AD |
8098 | if (IXGBE_MAX_PF_MACVLANS <= netdev_uc_count(dev)) |
8099 | return -ENOMEM; | |
0f4b0add JF |
8100 | } |
8101 | ||
f6f6424b | 8102 | return ndo_dflt_fdb_add(ndm, tb, dev, addr, vid, flags); |
0f4b0add JF |
8103 | } |
8104 | ||
219efe97 DS |
8105 | /** |
8106 | * ixgbe_configure_bridge_mode - set various bridge modes | |
8107 | * @adapter - the private structure | |
8108 | * @mode - requested bridge mode | |
8109 | * | |
8110 | * Configure some settings require for various bridge modes. | |
8111 | **/ | |
8112 | static int ixgbe_configure_bridge_mode(struct ixgbe_adapter *adapter, | |
8113 | __u16 mode) | |
8114 | { | |
6d4c96ad DS |
8115 | struct ixgbe_hw *hw = &adapter->hw; |
8116 | unsigned int p, num_pools; | |
8117 | u32 vmdctl; | |
8118 | ||
219efe97 DS |
8119 | switch (mode) { |
8120 | case BRIDGE_MODE_VEPA: | |
6d4c96ad | 8121 | /* disable Tx loopback, rely on switch hairpin mode */ |
219efe97 | 8122 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_PFDTXGSWC, 0); |
6d4c96ad DS |
8123 | |
8124 | /* must enable Rx switching replication to allow multicast | |
8125 | * packet reception on all VFs, and to enable source address | |
8126 | * pruning. | |
8127 | */ | |
8128 | vmdctl = IXGBE_READ_REG(hw, IXGBE_VMD_CTL); | |
8129 | vmdctl |= IXGBE_VT_CTL_REPLEN; | |
8130 | IXGBE_WRITE_REG(hw, IXGBE_VMD_CTL, vmdctl); | |
8131 | ||
8132 | /* enable Rx source address pruning. Note, this requires | |
8133 | * replication to be enabled or else it does nothing. | |
8134 | */ | |
8135 | num_pools = adapter->num_vfs + adapter->num_rx_pools; | |
8136 | for (p = 0; p < num_pools; p++) { | |
8137 | if (hw->mac.ops.set_source_address_pruning) | |
8138 | hw->mac.ops.set_source_address_pruning(hw, | |
8139 | true, | |
8140 | p); | |
8141 | } | |
219efe97 DS |
8142 | break; |
8143 | case BRIDGE_MODE_VEB: | |
6d4c96ad | 8144 | /* enable Tx loopback for internal VF/PF communication */ |
219efe97 DS |
8145 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_PFDTXGSWC, |
8146 | IXGBE_PFDTXGSWC_VT_LBEN); | |
6d4c96ad DS |
8147 | |
8148 | /* disable Rx switching replication unless we have SR-IOV | |
8149 | * virtual functions | |
8150 | */ | |
8151 | vmdctl = IXGBE_READ_REG(hw, IXGBE_VMD_CTL); | |
8152 | if (!adapter->num_vfs) | |
8153 | vmdctl &= ~IXGBE_VT_CTL_REPLEN; | |
8154 | IXGBE_WRITE_REG(hw, IXGBE_VMD_CTL, vmdctl); | |
8155 | ||
8156 | /* disable Rx source address pruning, since we don't expect to | |
8157 | * be receiving external loopback of our transmitted frames. | |
8158 | */ | |
8159 | num_pools = adapter->num_vfs + adapter->num_rx_pools; | |
8160 | for (p = 0; p < num_pools; p++) { | |
8161 | if (hw->mac.ops.set_source_address_pruning) | |
8162 | hw->mac.ops.set_source_address_pruning(hw, | |
8163 | false, | |
8164 | p); | |
8165 | } | |
219efe97 DS |
8166 | break; |
8167 | default: | |
8168 | return -EINVAL; | |
8169 | } | |
8170 | ||
8171 | adapter->bridge_mode = mode; | |
8172 | ||
8173 | e_info(drv, "enabling bridge mode: %s\n", | |
8174 | mode == BRIDGE_MODE_VEPA ? "VEPA" : "VEB"); | |
8175 | ||
8176 | return 0; | |
8177 | } | |
8178 | ||
815cccbf | 8179 | static int ixgbe_ndo_bridge_setlink(struct net_device *dev, |
add511b3 | 8180 | struct nlmsghdr *nlh, u16 flags) |
815cccbf JF |
8181 | { |
8182 | struct ixgbe_adapter *adapter = netdev_priv(dev); | |
8183 | struct nlattr *attr, *br_spec; | |
8184 | int rem; | |
8185 | ||
8186 | if (!(adapter->flags & IXGBE_FLAG_SRIOV_ENABLED)) | |
8187 | return -EOPNOTSUPP; | |
8188 | ||
8189 | br_spec = nlmsg_find_attr(nlh, sizeof(struct ifinfomsg), IFLA_AF_SPEC); | |
4ea85e83 TG |
8190 | if (!br_spec) |
8191 | return -EINVAL; | |
815cccbf JF |
8192 | |
8193 | nla_for_each_nested(attr, br_spec, rem) { | |
a1e869de | 8194 | int status; |
815cccbf | 8195 | __u16 mode; |
815cccbf JF |
8196 | |
8197 | if (nla_type(attr) != IFLA_BRIDGE_MODE) | |
8198 | continue; | |
8199 | ||
b7c1a314 TG |
8200 | if (nla_len(attr) < sizeof(mode)) |
8201 | return -EINVAL; | |
8202 | ||
815cccbf | 8203 | mode = nla_get_u16(attr); |
219efe97 DS |
8204 | status = ixgbe_configure_bridge_mode(adapter, mode); |
8205 | if (status) | |
8206 | return status; | |
aa2bacb6 DS |
8207 | |
8208 | break; | |
815cccbf JF |
8209 | } |
8210 | ||
8211 | return 0; | |
8212 | } | |
8213 | ||
8214 | static int ixgbe_ndo_bridge_getlink(struct sk_buff *skb, u32 pid, u32 seq, | |
6cbdceeb | 8215 | struct net_device *dev, |
46c264da | 8216 | u32 filter_mask, int nlflags) |
815cccbf JF |
8217 | { |
8218 | struct ixgbe_adapter *adapter = netdev_priv(dev); | |
815cccbf JF |
8219 | |
8220 | if (!(adapter->flags & IXGBE_FLAG_SRIOV_ENABLED)) | |
8221 | return 0; | |
8222 | ||
aa2bacb6 | 8223 | return ndo_dflt_bridge_getlink(skb, pid, seq, dev, |
7d4f8d87 SF |
8224 | adapter->bridge_mode, 0, 0, nlflags, |
8225 | filter_mask, NULL); | |
815cccbf JF |
8226 | } |
8227 | ||
2a47fa45 JF |
8228 | static void *ixgbe_fwd_add(struct net_device *pdev, struct net_device *vdev) |
8229 | { | |
8230 | struct ixgbe_fwd_adapter *fwd_adapter = NULL; | |
8231 | struct ixgbe_adapter *adapter = netdev_priv(pdev); | |
aac2f1bf | 8232 | int used_pools = adapter->num_vfs + adapter->num_rx_pools; |
51f3773b | 8233 | unsigned int limit; |
2a47fa45 JF |
8234 | int pool, err; |
8235 | ||
aac2f1bf JK |
8236 | /* Hardware has a limited number of available pools. Each VF, and the |
8237 | * PF require a pool. Check to ensure we don't attempt to use more | |
8238 | * then the available number of pools. | |
8239 | */ | |
8240 | if (used_pools >= IXGBE_MAX_VF_FUNCTIONS) | |
8241 | return ERR_PTR(-EINVAL); | |
8242 | ||
219354d4 JF |
8243 | #ifdef CONFIG_RPS |
8244 | if (vdev->num_rx_queues != vdev->num_tx_queues) { | |
8245 | netdev_info(pdev, "%s: Only supports a single queue count for TX and RX\n", | |
8246 | vdev->name); | |
8247 | return ERR_PTR(-EINVAL); | |
8248 | } | |
8249 | #endif | |
2a47fa45 | 8250 | /* Check for hardware restriction on number of rx/tx queues */ |
219354d4 | 8251 | if (vdev->num_tx_queues > IXGBE_MAX_L2A_QUEUES || |
2a47fa45 JF |
8252 | vdev->num_tx_queues == IXGBE_BAD_L2A_QUEUE) { |
8253 | netdev_info(pdev, | |
8254 | "%s: Supports RX/TX Queue counts 1,2, and 4\n", | |
8255 | pdev->name); | |
8256 | return ERR_PTR(-EINVAL); | |
8257 | } | |
8258 | ||
8259 | if (((adapter->flags & IXGBE_FLAG_DCB_ENABLED) && | |
8260 | adapter->num_rx_pools > IXGBE_MAX_DCBMACVLANS - 1) || | |
8261 | (adapter->num_rx_pools > IXGBE_MAX_MACVLANS)) | |
8262 | return ERR_PTR(-EBUSY); | |
8263 | ||
8264 | fwd_adapter = kcalloc(1, sizeof(struct ixgbe_fwd_adapter), GFP_KERNEL); | |
8265 | if (!fwd_adapter) | |
8266 | return ERR_PTR(-ENOMEM); | |
8267 | ||
8268 | pool = find_first_zero_bit(&adapter->fwd_bitmask, 32); | |
8269 | adapter->num_rx_pools++; | |
8270 | set_bit(pool, &adapter->fwd_bitmask); | |
51f3773b | 8271 | limit = find_last_bit(&adapter->fwd_bitmask, 32); |
2a47fa45 JF |
8272 | |
8273 | /* Enable VMDq flag so device will be set in VM mode */ | |
8274 | adapter->flags |= IXGBE_FLAG_VMDQ_ENABLED | IXGBE_FLAG_SRIOV_ENABLED; | |
51f3773b | 8275 | adapter->ring_feature[RING_F_VMDQ].limit = limit + 1; |
219354d4 | 8276 | adapter->ring_feature[RING_F_RSS].limit = vdev->num_tx_queues; |
2a47fa45 JF |
8277 | |
8278 | /* Force reinit of ring allocation with VMDQ enabled */ | |
8279 | err = ixgbe_setup_tc(pdev, netdev_get_num_tc(pdev)); | |
8280 | if (err) | |
8281 | goto fwd_add_err; | |
8282 | fwd_adapter->pool = pool; | |
8283 | fwd_adapter->real_adapter = adapter; | |
8284 | err = ixgbe_fwd_ring_up(vdev, fwd_adapter); | |
8285 | if (err) | |
8286 | goto fwd_add_err; | |
8287 | netif_tx_start_all_queues(vdev); | |
8288 | return fwd_adapter; | |
8289 | fwd_add_err: | |
8290 | /* unwind counter and free adapter struct */ | |
8291 | netdev_info(pdev, | |
8292 | "%s: dfwd hardware acceleration failed\n", vdev->name); | |
8293 | clear_bit(pool, &adapter->fwd_bitmask); | |
8294 | adapter->num_rx_pools--; | |
8295 | kfree(fwd_adapter); | |
8296 | return ERR_PTR(err); | |
8297 | } | |
8298 | ||
8299 | static void ixgbe_fwd_del(struct net_device *pdev, void *priv) | |
8300 | { | |
8301 | struct ixgbe_fwd_adapter *fwd_adapter = priv; | |
8302 | struct ixgbe_adapter *adapter = fwd_adapter->real_adapter; | |
51f3773b | 8303 | unsigned int limit; |
2a47fa45 JF |
8304 | |
8305 | clear_bit(fwd_adapter->pool, &adapter->fwd_bitmask); | |
8306 | adapter->num_rx_pools--; | |
8307 | ||
51f3773b JF |
8308 | limit = find_last_bit(&adapter->fwd_bitmask, 32); |
8309 | adapter->ring_feature[RING_F_VMDQ].limit = limit + 1; | |
2a47fa45 JF |
8310 | ixgbe_fwd_ring_down(fwd_adapter->netdev, fwd_adapter); |
8311 | ixgbe_setup_tc(pdev, netdev_get_num_tc(pdev)); | |
8312 | netdev_dbg(pdev, "pool %i:%i queues %i:%i VSI bitmask %lx\n", | |
8313 | fwd_adapter->pool, adapter->num_rx_pools, | |
8314 | fwd_adapter->rx_base_queue, | |
8315 | fwd_adapter->rx_base_queue + adapter->num_rx_queues_per_pool, | |
8316 | adapter->fwd_bitmask); | |
8317 | kfree(fwd_adapter); | |
8318 | } | |
8319 | ||
f467bc06 MR |
8320 | #define IXGBE_MAX_TUNNEL_HDR_LEN 80 |
8321 | static netdev_features_t | |
8322 | ixgbe_features_check(struct sk_buff *skb, struct net_device *dev, | |
8323 | netdev_features_t features) | |
8324 | { | |
8325 | if (!skb->encapsulation) | |
8326 | return features; | |
8327 | ||
8328 | if (unlikely(skb_inner_mac_header(skb) - skb_transport_header(skb) > | |
8329 | IXGBE_MAX_TUNNEL_HDR_LEN)) | |
8330 | return features & ~NETIF_F_ALL_CSUM; | |
8331 | ||
8332 | return features; | |
8333 | } | |
8334 | ||
0edc3527 | 8335 | static const struct net_device_ops ixgbe_netdev_ops = { |
e8e9f696 | 8336 | .ndo_open = ixgbe_open, |
0edc3527 | 8337 | .ndo_stop = ixgbe_close, |
00829823 | 8338 | .ndo_start_xmit = ixgbe_xmit_frame, |
09a3b1f8 | 8339 | .ndo_select_queue = ixgbe_select_queue, |
581330ba | 8340 | .ndo_set_rx_mode = ixgbe_set_rx_mode, |
0edc3527 SH |
8341 | .ndo_validate_addr = eth_validate_addr, |
8342 | .ndo_set_mac_address = ixgbe_set_mac, | |
8343 | .ndo_change_mtu = ixgbe_change_mtu, | |
8344 | .ndo_tx_timeout = ixgbe_tx_timeout, | |
0edc3527 SH |
8345 | .ndo_vlan_rx_add_vid = ixgbe_vlan_rx_add_vid, |
8346 | .ndo_vlan_rx_kill_vid = ixgbe_vlan_rx_kill_vid, | |
6b73e10d | 8347 | .ndo_do_ioctl = ixgbe_ioctl, |
7f01648a GR |
8348 | .ndo_set_vf_mac = ixgbe_ndo_set_vf_mac, |
8349 | .ndo_set_vf_vlan = ixgbe_ndo_set_vf_vlan, | |
ed616689 | 8350 | .ndo_set_vf_rate = ixgbe_ndo_set_vf_bw, |
581330ba | 8351 | .ndo_set_vf_spoofchk = ixgbe_ndo_set_vf_spoofchk, |
e65ce0d3 | 8352 | .ndo_set_vf_rss_query_en = ixgbe_ndo_set_vf_rss_query_en, |
7f01648a | 8353 | .ndo_get_vf_config = ixgbe_ndo_get_vf_config, |
de1036b1 | 8354 | .ndo_get_stats64 = ixgbe_get_stats64, |
8af3c33f | 8355 | #ifdef CONFIG_IXGBE_DCB |
24095aa3 | 8356 | .ndo_setup_tc = ixgbe_setup_tc, |
8af3c33f | 8357 | #endif |
0edc3527 SH |
8358 | #ifdef CONFIG_NET_POLL_CONTROLLER |
8359 | .ndo_poll_controller = ixgbe_netpoll, | |
8360 | #endif | |
e0d1095a | 8361 | #ifdef CONFIG_NET_RX_BUSY_POLL |
8b80cda5 | 8362 | .ndo_busy_poll = ixgbe_low_latency_recv, |
5a85e737 | 8363 | #endif |
332d4a7d YZ |
8364 | #ifdef IXGBE_FCOE |
8365 | .ndo_fcoe_ddp_setup = ixgbe_fcoe_ddp_get, | |
68a683cf | 8366 | .ndo_fcoe_ddp_target = ixgbe_fcoe_ddp_target, |
332d4a7d | 8367 | .ndo_fcoe_ddp_done = ixgbe_fcoe_ddp_put, |
8450ff8c YZ |
8368 | .ndo_fcoe_enable = ixgbe_fcoe_enable, |
8369 | .ndo_fcoe_disable = ixgbe_fcoe_disable, | |
61a1fa10 | 8370 | .ndo_fcoe_get_wwn = ixgbe_fcoe_get_wwn, |
ea81875a | 8371 | .ndo_fcoe_get_hbainfo = ixgbe_fcoe_get_hbainfo, |
332d4a7d | 8372 | #endif /* IXGBE_FCOE */ |
082757af DS |
8373 | .ndo_set_features = ixgbe_set_features, |
8374 | .ndo_fix_features = ixgbe_fix_features, | |
0f4b0add | 8375 | .ndo_fdb_add = ixgbe_ndo_fdb_add, |
815cccbf JF |
8376 | .ndo_bridge_setlink = ixgbe_ndo_bridge_setlink, |
8377 | .ndo_bridge_getlink = ixgbe_ndo_bridge_getlink, | |
2a47fa45 JF |
8378 | .ndo_dfwd_add_station = ixgbe_fwd_add, |
8379 | .ndo_dfwd_del_station = ixgbe_fwd_del, | |
67359c3c | 8380 | #ifdef CONFIG_IXGBE_VXLAN |
3f207800 DS |
8381 | .ndo_add_vxlan_port = ixgbe_add_vxlan_port, |
8382 | .ndo_del_vxlan_port = ixgbe_del_vxlan_port, | |
67359c3c | 8383 | #endif /* CONFIG_IXGBE_VXLAN */ |
f467bc06 | 8384 | .ndo_features_check = ixgbe_features_check, |
0edc3527 SH |
8385 | }; |
8386 | ||
e027d1ae JK |
8387 | /** |
8388 | * ixgbe_enumerate_functions - Get the number of ports this device has | |
8389 | * @adapter: adapter structure | |
8390 | * | |
8391 | * This function enumerates the phsyical functions co-located on a single slot, | |
8392 | * in order to determine how many ports a device has. This is most useful in | |
8393 | * determining the required GT/s of PCIe bandwidth necessary for optimal | |
8394 | * performance. | |
8395 | **/ | |
8396 | static inline int ixgbe_enumerate_functions(struct ixgbe_adapter *adapter) | |
8397 | { | |
caafb95d | 8398 | struct pci_dev *entry, *pdev = adapter->pdev; |
e027d1ae JK |
8399 | int physfns = 0; |
8400 | ||
f1f96579 JK |
8401 | /* Some cards can not use the generic count PCIe functions method, |
8402 | * because they are behind a parent switch, so we hardcode these with | |
8403 | * the correct number of functions. | |
e027d1ae | 8404 | */ |
8818970d | 8405 | if (ixgbe_pcie_from_parent(&adapter->hw)) |
e027d1ae | 8406 | physfns = 4; |
8818970d JK |
8407 | |
8408 | list_for_each_entry(entry, &adapter->pdev->bus->devices, bus_list) { | |
8409 | /* don't count virtual functions */ | |
caafb95d JK |
8410 | if (entry->is_virtfn) |
8411 | continue; | |
8412 | ||
8413 | /* When the devices on the bus don't all match our device ID, | |
8414 | * we can't reliably determine the correct number of | |
8415 | * functions. This can occur if a function has been direct | |
8416 | * attached to a virtual machine using VT-d, for example. In | |
8417 | * this case, simply return -1 to indicate this. | |
8418 | */ | |
8419 | if ((entry->vendor != pdev->vendor) || | |
8420 | (entry->device != pdev->device)) | |
8421 | return -1; | |
8422 | ||
8423 | physfns++; | |
e027d1ae JK |
8424 | } |
8425 | ||
8426 | return physfns; | |
8427 | } | |
8428 | ||
8e2813f5 JK |
8429 | /** |
8430 | * ixgbe_wol_supported - Check whether device supports WoL | |
8431 | * @hw: hw specific details | |
8432 | * @device_id: the device ID | |
8433 | * @subdev_id: the subsystem device ID | |
8434 | * | |
8435 | * This function is used by probe and ethtool to determine | |
8436 | * which devices have WoL support | |
8437 | * | |
8438 | **/ | |
8439 | int ixgbe_wol_supported(struct ixgbe_adapter *adapter, u16 device_id, | |
8440 | u16 subdevice_id) | |
8441 | { | |
8442 | struct ixgbe_hw *hw = &adapter->hw; | |
8443 | u16 wol_cap = adapter->eeprom_cap & IXGBE_DEVICE_CAPS_WOL_MASK; | |
8444 | int is_wol_supported = 0; | |
8445 | ||
8446 | switch (device_id) { | |
8447 | case IXGBE_DEV_ID_82599_SFP: | |
8448 | /* Only these subdevices could supports WOL */ | |
8449 | switch (subdevice_id) { | |
87557440 | 8450 | case IXGBE_SUBDEV_ID_82599_SFP_WOL0: |
8e2813f5 JK |
8451 | case IXGBE_SUBDEV_ID_82599_560FLR: |
8452 | /* only support first port */ | |
8453 | if (hw->bus.func != 0) | |
8454 | break; | |
5700ff26 | 8455 | case IXGBE_SUBDEV_ID_82599_SP_560FLR: |
8e2813f5 | 8456 | case IXGBE_SUBDEV_ID_82599_SFP: |
b6dfd939 | 8457 | case IXGBE_SUBDEV_ID_82599_RNDC: |
f8a06c2c | 8458 | case IXGBE_SUBDEV_ID_82599_ECNA_DP: |
979fe5f7 | 8459 | case IXGBE_SUBDEV_ID_82599_LOM_SFP: |
8e2813f5 JK |
8460 | is_wol_supported = 1; |
8461 | break; | |
8462 | } | |
8463 | break; | |
5daebbb0 DS |
8464 | case IXGBE_DEV_ID_82599EN_SFP: |
8465 | /* Only this subdevice supports WOL */ | |
8466 | switch (subdevice_id) { | |
8467 | case IXGBE_SUBDEV_ID_82599EN_SFP_OCP1: | |
8468 | is_wol_supported = 1; | |
8469 | break; | |
8470 | } | |
8471 | break; | |
8e2813f5 JK |
8472 | case IXGBE_DEV_ID_82599_COMBO_BACKPLANE: |
8473 | /* All except this subdevice support WOL */ | |
8474 | if (subdevice_id != IXGBE_SUBDEV_ID_82599_KX4_KR_MEZZ) | |
8475 | is_wol_supported = 1; | |
8476 | break; | |
8477 | case IXGBE_DEV_ID_82599_KX4: | |
8478 | is_wol_supported = 1; | |
8479 | break; | |
8480 | case IXGBE_DEV_ID_X540T: | |
df376f0d | 8481 | case IXGBE_DEV_ID_X540T1: |
df8c26fd DS |
8482 | case IXGBE_DEV_ID_X550T: |
8483 | case IXGBE_DEV_ID_X550EM_X_KX4: | |
8484 | case IXGBE_DEV_ID_X550EM_X_KR: | |
8485 | case IXGBE_DEV_ID_X550EM_X_10G_T: | |
8e2813f5 JK |
8486 | /* check eeprom to see if enabled wol */ |
8487 | if ((wol_cap == IXGBE_DEVICE_CAPS_WOL_PORT0_1) || | |
8488 | ((wol_cap == IXGBE_DEVICE_CAPS_WOL_PORT0) && | |
8489 | (hw->bus.func == 0))) { | |
8490 | is_wol_supported = 1; | |
8491 | } | |
8492 | break; | |
8493 | } | |
8494 | ||
8495 | return is_wol_supported; | |
8496 | } | |
8497 | ||
c762dff2 MP |
8498 | /** |
8499 | * ixgbe_get_platform_mac_addr - Look up MAC address in Open Firmware / IDPROM | |
8500 | * @adapter: Pointer to adapter struct | |
8501 | */ | |
8502 | static void ixgbe_get_platform_mac_addr(struct ixgbe_adapter *adapter) | |
8503 | { | |
8504 | #ifdef CONFIG_OF | |
8505 | struct device_node *dp = pci_device_to_OF_node(adapter->pdev); | |
8506 | struct ixgbe_hw *hw = &adapter->hw; | |
8507 | const unsigned char *addr; | |
8508 | ||
8509 | addr = of_get_mac_address(dp); | |
8510 | if (addr) { | |
8511 | ether_addr_copy(hw->mac.perm_addr, addr); | |
8512 | return; | |
8513 | } | |
8514 | #endif /* CONFIG_OF */ | |
8515 | ||
8516 | #ifdef CONFIG_SPARC | |
8517 | ether_addr_copy(hw->mac.perm_addr, idprom->id_ethaddr); | |
8518 | #endif /* CONFIG_SPARC */ | |
8519 | } | |
8520 | ||
9a799d71 AK |
8521 | /** |
8522 | * ixgbe_probe - Device Initialization Routine | |
8523 | * @pdev: PCI device information struct | |
8524 | * @ent: entry in ixgbe_pci_tbl | |
8525 | * | |
8526 | * Returns 0 on success, negative on failure | |
8527 | * | |
8528 | * ixgbe_probe initializes an adapter identified by a pci_dev structure. | |
8529 | * The OS initialization, configuring of the adapter private structure, | |
8530 | * and a hardware reset occur. | |
8531 | **/ | |
1dd06ae8 | 8532 | static int ixgbe_probe(struct pci_dev *pdev, const struct pci_device_id *ent) |
9a799d71 AK |
8533 | { |
8534 | struct net_device *netdev; | |
8535 | struct ixgbe_adapter *adapter = NULL; | |
8536 | struct ixgbe_hw *hw; | |
8537 | const struct ixgbe_info *ii = ixgbe_info_tbl[ent->driver_data]; | |
e027d1ae | 8538 | int i, err, pci_using_dac, expected_gts; |
d3cb9869 | 8539 | unsigned int indices = MAX_TX_QUEUES; |
289700db | 8540 | u8 part_str[IXGBE_PBANUM_LENGTH]; |
b5b2ffc0 | 8541 | bool disable_dev = false; |
eacd73f7 YZ |
8542 | #ifdef IXGBE_FCOE |
8543 | u16 device_caps; | |
8544 | #endif | |
289700db | 8545 | u32 eec; |
9a799d71 | 8546 | |
bded64a7 AG |
8547 | /* Catch broken hardware that put the wrong VF device ID in |
8548 | * the PCIe SR-IOV capability. | |
8549 | */ | |
8550 | if (pdev->is_virtfn) { | |
8551 | WARN(1, KERN_ERR "%s (%hx:%hx) should not be a VF!\n", | |
8552 | pci_name(pdev), pdev->vendor, pdev->device); | |
8553 | return -EINVAL; | |
8554 | } | |
8555 | ||
9ce77666 | 8556 | err = pci_enable_device_mem(pdev); |
9a799d71 AK |
8557 | if (err) |
8558 | return err; | |
8559 | ||
f5f2eda8 | 8560 | if (!dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64))) { |
9a799d71 AK |
8561 | pci_using_dac = 1; |
8562 | } else { | |
f5f2eda8 | 8563 | err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32)); |
9a799d71 | 8564 | if (err) { |
f5f2eda8 RK |
8565 | dev_err(&pdev->dev, |
8566 | "No usable DMA configuration, aborting\n"); | |
8567 | goto err_dma; | |
9a799d71 AK |
8568 | } |
8569 | pci_using_dac = 0; | |
8570 | } | |
8571 | ||
9ce77666 | 8572 | err = pci_request_selected_regions(pdev, pci_select_bars(pdev, |
e8e9f696 | 8573 | IORESOURCE_MEM), ixgbe_driver_name); |
9a799d71 | 8574 | if (err) { |
b8bc0421 DC |
8575 | dev_err(&pdev->dev, |
8576 | "pci_request_selected_regions failed 0x%x\n", err); | |
9a799d71 AK |
8577 | goto err_pci_reg; |
8578 | } | |
8579 | ||
19d5afd4 | 8580 | pci_enable_pcie_error_reporting(pdev); |
6fabd715 | 8581 | |
9a799d71 | 8582 | pci_set_master(pdev); |
fb3b27bc | 8583 | pci_save_state(pdev); |
9a799d71 | 8584 | |
d3cb9869 | 8585 | if (ii->mac == ixgbe_mac_82598EB) { |
e901acd6 | 8586 | #ifdef CONFIG_IXGBE_DCB |
d3cb9869 AD |
8587 | /* 8 TC w/ 4 queues per TC */ |
8588 | indices = 4 * MAX_TRAFFIC_CLASS; | |
8589 | #else | |
8590 | indices = IXGBE_MAX_RSS_INDICES; | |
e901acd6 | 8591 | #endif |
d3cb9869 | 8592 | } |
e901acd6 | 8593 | |
c85a2618 | 8594 | netdev = alloc_etherdev_mq(sizeof(struct ixgbe_adapter), indices); |
9a799d71 AK |
8595 | if (!netdev) { |
8596 | err = -ENOMEM; | |
8597 | goto err_alloc_etherdev; | |
8598 | } | |
8599 | ||
9a799d71 AK |
8600 | SET_NETDEV_DEV(netdev, &pdev->dev); |
8601 | ||
9a799d71 AK |
8602 | adapter = netdev_priv(netdev); |
8603 | ||
8604 | adapter->netdev = netdev; | |
8605 | adapter->pdev = pdev; | |
8606 | hw = &adapter->hw; | |
8607 | hw->back = adapter; | |
b3f4d599 | 8608 | adapter->msg_enable = netif_msg_init(debug, DEFAULT_MSG_ENABLE); |
9a799d71 | 8609 | |
05857980 | 8610 | hw->hw_addr = ioremap(pci_resource_start(pdev, 0), |
e8e9f696 | 8611 | pci_resource_len(pdev, 0)); |
2a1a091c | 8612 | adapter->io_addr = hw->hw_addr; |
9a799d71 AK |
8613 | if (!hw->hw_addr) { |
8614 | err = -EIO; | |
8615 | goto err_ioremap; | |
8616 | } | |
8617 | ||
0edc3527 | 8618 | netdev->netdev_ops = &ixgbe_netdev_ops; |
9a799d71 | 8619 | ixgbe_set_ethtool_ops(netdev); |
9a799d71 | 8620 | netdev->watchdog_timeo = 5 * HZ; |
339de30f | 8621 | strlcpy(netdev->name, pci_name(pdev), sizeof(netdev->name)); |
9a799d71 | 8622 | |
9a799d71 AK |
8623 | /* Setup hw api */ |
8624 | memcpy(&hw->mac.ops, ii->mac_ops, sizeof(hw->mac.ops)); | |
021230d4 | 8625 | hw->mac.type = ii->mac; |
9a900eca | 8626 | hw->mvals = ii->mvals; |
9a799d71 | 8627 | |
c44ade9e JB |
8628 | /* EEPROM */ |
8629 | memcpy(&hw->eeprom.ops, ii->eeprom_ops, sizeof(hw->eeprom.ops)); | |
9a900eca | 8630 | eec = IXGBE_READ_REG(hw, IXGBE_EEC(hw)); |
58cf663f MR |
8631 | if (ixgbe_removed(hw->hw_addr)) { |
8632 | err = -EIO; | |
8633 | goto err_ioremap; | |
8634 | } | |
c44ade9e JB |
8635 | /* If EEPROM is valid (bit 8 = 1), use default otherwise use bit bang */ |
8636 | if (!(eec & (1 << 8))) | |
8637 | hw->eeprom.ops.read = &ixgbe_read_eeprom_bit_bang_generic; | |
8638 | ||
8639 | /* PHY */ | |
8640 | memcpy(&hw->phy.ops, ii->phy_ops, sizeof(hw->phy.ops)); | |
c4900be0 | 8641 | hw->phy.sfp_type = ixgbe_sfp_type_unknown; |
6b73e10d BH |
8642 | /* ixgbe_identify_phy_generic will set prtad and mmds properly */ |
8643 | hw->phy.mdio.prtad = MDIO_PRTAD_NONE; | |
8644 | hw->phy.mdio.mmds = 0; | |
8645 | hw->phy.mdio.mode_support = MDIO_SUPPORTS_C45 | MDIO_EMULATE_C22; | |
8646 | hw->phy.mdio.dev = netdev; | |
8647 | hw->phy.mdio.mdio_read = ixgbe_mdio_read; | |
8648 | hw->phy.mdio.mdio_write = ixgbe_mdio_write; | |
c4900be0 | 8649 | |
8ca783ab | 8650 | ii->get_invariants(hw); |
9a799d71 AK |
8651 | |
8652 | /* setup the private structure */ | |
8653 | err = ixgbe_sw_init(adapter); | |
8654 | if (err) | |
8655 | goto err_sw_init; | |
8656 | ||
e86bff0e | 8657 | /* Make it possible the adapter to be woken up via WOL */ |
b93a2226 DS |
8658 | switch (adapter->hw.mac.type) { |
8659 | case ixgbe_mac_82599EB: | |
8660 | case ixgbe_mac_X540: | |
9a75a1ac DS |
8661 | case ixgbe_mac_X550: |
8662 | case ixgbe_mac_X550EM_x: | |
e86bff0e | 8663 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_WUS, ~0); |
b93a2226 DS |
8664 | break; |
8665 | default: | |
8666 | break; | |
8667 | } | |
e86bff0e | 8668 | |
bf069c97 DS |
8669 | /* |
8670 | * If there is a fan on this device and it has failed log the | |
8671 | * failure. | |
8672 | */ | |
8673 | if (adapter->flags & IXGBE_FLAG_FAN_FAIL_CAPABLE) { | |
8674 | u32 esdp = IXGBE_READ_REG(hw, IXGBE_ESDP); | |
8675 | if (esdp & IXGBE_ESDP_SDP1) | |
396e799c | 8676 | e_crit(probe, "Fan has stopped, replace the adapter\n"); |
bf069c97 DS |
8677 | } |
8678 | ||
8ef78adc PWJ |
8679 | if (allow_unsupported_sfp) |
8680 | hw->allow_unsupported_sfp = allow_unsupported_sfp; | |
8681 | ||
c44ade9e | 8682 | /* reset_hw fills in the perm_addr as well */ |
119fc60a | 8683 | hw->phy.reset_if_overtemp = true; |
c44ade9e | 8684 | err = hw->mac.ops.reset_hw(hw); |
119fc60a | 8685 | hw->phy.reset_if_overtemp = false; |
8ca783ab DS |
8686 | if (err == IXGBE_ERR_SFP_NOT_PRESENT && |
8687 | hw->mac.type == ixgbe_mac_82598EB) { | |
8ca783ab DS |
8688 | err = 0; |
8689 | } else if (err == IXGBE_ERR_SFP_NOT_SUPPORTED) { | |
1b1bf31a DS |
8690 | e_dev_err("failed to load because an unsupported SFP+ or QSFP module type was detected.\n"); |
8691 | e_dev_err("Reload the driver after installing a supported module.\n"); | |
04f165ef PW |
8692 | goto err_sw_init; |
8693 | } else if (err) { | |
849c4542 | 8694 | e_dev_err("HW Init failed: %d\n", err); |
c44ade9e JB |
8695 | goto err_sw_init; |
8696 | } | |
8697 | ||
99d74487 | 8698 | #ifdef CONFIG_PCI_IOV |
60a1a680 GR |
8699 | /* SR-IOV not supported on the 82598 */ |
8700 | if (adapter->hw.mac.type == ixgbe_mac_82598EB) | |
8701 | goto skip_sriov; | |
8702 | /* Mailbox */ | |
8703 | ixgbe_init_mbx_params_pf(hw); | |
8704 | memcpy(&hw->mbx.ops, ii->mbx_ops, sizeof(hw->mbx.ops)); | |
dcc23e3a | 8705 | pci_sriov_set_totalvfs(pdev, IXGBE_MAX_VFS_DRV_LIMIT); |
31ac910e | 8706 | ixgbe_enable_sriov(adapter); |
60a1a680 | 8707 | skip_sriov: |
1cdd1ec8 | 8708 | |
99d74487 | 8709 | #endif |
396e799c | 8710 | netdev->features = NETIF_F_SG | |
e8e9f696 | 8711 | NETIF_F_IP_CSUM | |
082757af | 8712 | NETIF_F_IPV6_CSUM | |
f646968f PM |
8713 | NETIF_F_HW_VLAN_CTAG_TX | |
8714 | NETIF_F_HW_VLAN_CTAG_RX | | |
082757af DS |
8715 | NETIF_F_TSO | |
8716 | NETIF_F_TSO6 | | |
082757af | 8717 | NETIF_F_RXHASH | |
8bf1264d | 8718 | NETIF_F_RXCSUM; |
9a799d71 | 8719 | |
8bf1264d | 8720 | netdev->hw_features = netdev->features | NETIF_F_HW_L2FW_DOFFLOAD; |
ad31c402 | 8721 | |
58be7666 DS |
8722 | switch (adapter->hw.mac.type) { |
8723 | case ixgbe_mac_82599EB: | |
8724 | case ixgbe_mac_X540: | |
9a75a1ac DS |
8725 | case ixgbe_mac_X550: |
8726 | case ixgbe_mac_X550EM_x: | |
45a5ead0 | 8727 | netdev->features |= NETIF_F_SCTP_CSUM; |
082757af DS |
8728 | netdev->hw_features |= NETIF_F_SCTP_CSUM | |
8729 | NETIF_F_NTUPLE; | |
58be7666 DS |
8730 | break; |
8731 | default: | |
8732 | break; | |
8733 | } | |
45a5ead0 | 8734 | |
3f2d1c0f | 8735 | netdev->hw_features |= NETIF_F_RXALL; |
87031c0d | 8736 | netdev->features |= NETIF_F_HW_VLAN_CTAG_FILTER; |
3f2d1c0f | 8737 | |
ad31c402 JK |
8738 | netdev->vlan_features |= NETIF_F_TSO; |
8739 | netdev->vlan_features |= NETIF_F_TSO6; | |
22f32b7a | 8740 | netdev->vlan_features |= NETIF_F_IP_CSUM; |
cd1da503 | 8741 | netdev->vlan_features |= NETIF_F_IPV6_CSUM; |
ad31c402 JK |
8742 | netdev->vlan_features |= NETIF_F_SG; |
8743 | ||
f467bc06 MR |
8744 | netdev->hw_enc_features |= NETIF_F_SG | NETIF_F_IP_CSUM | |
8745 | NETIF_F_IPV6_CSUM; | |
8746 | ||
01789349 | 8747 | netdev->priv_flags |= IFF_UNICAST_FLT; |
f43f313e | 8748 | netdev->priv_flags |= IFF_SUPP_NOFCS; |
01789349 | 8749 | |
67359c3c | 8750 | #ifdef CONFIG_IXGBE_VXLAN |
3f207800 DS |
8751 | switch (adapter->hw.mac.type) { |
8752 | case ixgbe_mac_X550: | |
8753 | case ixgbe_mac_X550EM_x: | |
67359c3c MR |
8754 | netdev->hw_enc_features |= NETIF_F_RXCSUM | |
8755 | NETIF_F_IP_CSUM | | |
8756 | NETIF_F_IPV6_CSUM; | |
3f207800 DS |
8757 | break; |
8758 | default: | |
8759 | break; | |
8760 | } | |
67359c3c | 8761 | #endif /* CONFIG_IXGBE_VXLAN */ |
3f207800 | 8762 | |
7a6b6f51 | 8763 | #ifdef CONFIG_IXGBE_DCB |
2f90b865 AD |
8764 | netdev->dcbnl_ops = &dcbnl_ops; |
8765 | #endif | |
8766 | ||
eacd73f7 | 8767 | #ifdef IXGBE_FCOE |
0d551589 | 8768 | if (adapter->flags & IXGBE_FLAG_FCOE_CAPABLE) { |
d3cb9869 AD |
8769 | unsigned int fcoe_l; |
8770 | ||
eacd73f7 YZ |
8771 | if (hw->mac.ops.get_device_caps) { |
8772 | hw->mac.ops.get_device_caps(hw, &device_caps); | |
0d551589 YZ |
8773 | if (device_caps & IXGBE_DEVICE_CAPS_FCOE_OFFLOADS) |
8774 | adapter->flags &= ~IXGBE_FLAG_FCOE_CAPABLE; | |
eacd73f7 | 8775 | } |
7c8ae65a | 8776 | |
d3cb9869 AD |
8777 | |
8778 | fcoe_l = min_t(int, IXGBE_FCRETA_SIZE, num_online_cpus()); | |
8779 | adapter->ring_feature[RING_F_FCOE].limit = fcoe_l; | |
7c8ae65a | 8780 | |
a58915c7 AD |
8781 | netdev->features |= NETIF_F_FSO | |
8782 | NETIF_F_FCOE_CRC; | |
8783 | ||
7c8ae65a AD |
8784 | netdev->vlan_features |= NETIF_F_FSO | |
8785 | NETIF_F_FCOE_CRC | | |
8786 | NETIF_F_FCOE_MTU; | |
5e09d7f6 | 8787 | } |
eacd73f7 | 8788 | #endif /* IXGBE_FCOE */ |
7b872a55 | 8789 | if (pci_using_dac) { |
9a799d71 | 8790 | netdev->features |= NETIF_F_HIGHDMA; |
7b872a55 YZ |
8791 | netdev->vlan_features |= NETIF_F_HIGHDMA; |
8792 | } | |
9a799d71 | 8793 | |
082757af DS |
8794 | if (adapter->flags2 & IXGBE_FLAG2_RSC_CAPABLE) |
8795 | netdev->hw_features |= NETIF_F_LRO; | |
0c19d6af | 8796 | if (adapter->flags2 & IXGBE_FLAG2_RSC_ENABLED) |
f8212f97 AD |
8797 | netdev->features |= NETIF_F_LRO; |
8798 | ||
9a799d71 | 8799 | /* make sure the EEPROM is good */ |
c44ade9e | 8800 | if (hw->eeprom.ops.validate_checksum(hw, NULL) < 0) { |
849c4542 | 8801 | e_dev_err("The EEPROM Checksum Is Not Valid\n"); |
9a799d71 | 8802 | err = -EIO; |
35937c05 | 8803 | goto err_sw_init; |
9a799d71 AK |
8804 | } |
8805 | ||
c762dff2 MP |
8806 | ixgbe_get_platform_mac_addr(adapter); |
8807 | ||
9a799d71 | 8808 | memcpy(netdev->dev_addr, hw->mac.perm_addr, netdev->addr_len); |
9a799d71 | 8809 | |
aaeb6cdf | 8810 | if (!is_valid_ether_addr(netdev->dev_addr)) { |
849c4542 | 8811 | e_dev_err("invalid MAC address\n"); |
9a799d71 | 8812 | err = -EIO; |
35937c05 | 8813 | goto err_sw_init; |
9a799d71 AK |
8814 | } |
8815 | ||
5d7daa35 JK |
8816 | ixgbe_mac_set_default_filter(adapter, hw->mac.perm_addr); |
8817 | ||
7086400d | 8818 | setup_timer(&adapter->service_timer, &ixgbe_service_timer, |
581330ba | 8819 | (unsigned long) adapter); |
9a799d71 | 8820 | |
58cf663f MR |
8821 | if (ixgbe_removed(hw->hw_addr)) { |
8822 | err = -EIO; | |
8823 | goto err_sw_init; | |
8824 | } | |
7086400d | 8825 | INIT_WORK(&adapter->service_task, ixgbe_service_task); |
58cf663f | 8826 | set_bit(__IXGBE_SERVICE_INITED, &adapter->state); |
7086400d | 8827 | clear_bit(__IXGBE_SERVICE_SCHED, &adapter->state); |
9a799d71 | 8828 | |
021230d4 AV |
8829 | err = ixgbe_init_interrupt_scheme(adapter); |
8830 | if (err) | |
8831 | goto err_sw_init; | |
9a799d71 | 8832 | |
8e2813f5 | 8833 | /* WOL not supported for all devices */ |
c23f5b6b | 8834 | adapter->wol = 0; |
8e2813f5 | 8835 | hw->eeprom.ops.read(hw, 0x2c, &adapter->eeprom_cap); |
6b92b0ba | 8836 | hw->wol_enabled = ixgbe_wol_supported(adapter, pdev->device, |
b8f83638 | 8837 | pdev->subsystem_device); |
6b92b0ba | 8838 | if (hw->wol_enabled) |
9417c464 | 8839 | adapter->wol = IXGBE_WUFC_MAG; |
c23f5b6b | 8840 | |
e8e26350 PW |
8841 | device_set_wakeup_enable(&adapter->pdev->dev, adapter->wol); |
8842 | ||
15e5209f ET |
8843 | /* save off EEPROM version number */ |
8844 | hw->eeprom.ops.read(hw, 0x2e, &adapter->eeprom_verh); | |
8845 | hw->eeprom.ops.read(hw, 0x2d, &adapter->eeprom_verl); | |
8846 | ||
04f165ef | 8847 | /* pick up the PCI bus settings for reporting later */ |
e027d1ae | 8848 | if (ixgbe_pcie_from_parent(hw)) |
b8e82001 | 8849 | ixgbe_get_parent_bus_info(adapter); |
f9328bc6 DS |
8850 | else |
8851 | hw->mac.ops.get_bus_info(hw); | |
04f165ef | 8852 | |
e027d1ae JK |
8853 | /* calculate the expected PCIe bandwidth required for optimal |
8854 | * performance. Note that some older parts will never have enough | |
8855 | * bandwidth due to being older generation PCIe parts. We clamp these | |
8856 | * parts to ensure no warning is displayed if it can't be fixed. | |
8857 | */ | |
8858 | switch (hw->mac.type) { | |
8859 | case ixgbe_mac_82598EB: | |
8860 | expected_gts = min(ixgbe_enumerate_functions(adapter) * 10, 16); | |
8861 | break; | |
8862 | default: | |
8863 | expected_gts = ixgbe_enumerate_functions(adapter) * 10; | |
8864 | break; | |
0c254d86 | 8865 | } |
caafb95d JK |
8866 | |
8867 | /* don't check link if we failed to enumerate functions */ | |
8868 | if (expected_gts > 0) | |
8869 | ixgbe_check_minimum_link(adapter, expected_gts); | |
0c254d86 | 8870 | |
339de30f | 8871 | err = ixgbe_read_pba_string_generic(hw, part_str, sizeof(part_str)); |
6a2aae5a | 8872 | if (err) |
339de30f | 8873 | strlcpy(part_str, "Unknown", sizeof(part_str)); |
6a2aae5a JK |
8874 | if (ixgbe_is_sfp(hw) && hw->phy.sfp_type != ixgbe_sfp_type_not_present) |
8875 | e_dev_info("MAC: %d, PHY: %d, SFP+: %d, PBA No: %s\n", | |
8876 | hw->mac.type, hw->phy.type, hw->phy.sfp_type, | |
e7cf745b | 8877 | part_str); |
6a2aae5a JK |
8878 | else |
8879 | e_dev_info("MAC: %d, PHY: %d, PBA No: %s\n", | |
8880 | hw->mac.type, hw->phy.type, part_str); | |
8881 | ||
8882 | e_dev_info("%pM\n", netdev->dev_addr); | |
8883 | ||
9a799d71 | 8884 | /* reset the hardware with the new settings */ |
794caeb2 | 8885 | err = hw->mac.ops.start_hw(hw); |
794caeb2 PWJ |
8886 | if (err == IXGBE_ERR_EEPROM_VERSION) { |
8887 | /* We are running on a pre-production device, log a warning */ | |
849c4542 ET |
8888 | e_dev_warn("This device is a pre-production adapter/LOM. " |
8889 | "Please be aware there may be issues associated " | |
8890 | "with your hardware. If you are experiencing " | |
8891 | "problems please contact your Intel or hardware " | |
8892 | "representative who provided you with this " | |
8893 | "hardware.\n"); | |
794caeb2 | 8894 | } |
9a799d71 AK |
8895 | strcpy(netdev->name, "eth%d"); |
8896 | err = register_netdev(netdev); | |
8897 | if (err) | |
8898 | goto err_register; | |
8899 | ||
0fb6a55c ET |
8900 | pci_set_drvdata(pdev, adapter); |
8901 | ||
ec74a471 ET |
8902 | /* power down the optics for 82599 SFP+ fiber */ |
8903 | if (hw->mac.ops.disable_tx_laser) | |
93d3ce8f ET |
8904 | hw->mac.ops.disable_tx_laser(hw); |
8905 | ||
54386467 JB |
8906 | /* carrier off reporting is important to ethtool even BEFORE open */ |
8907 | netif_carrier_off(netdev); | |
8908 | ||
5dd2d332 | 8909 | #ifdef CONFIG_IXGBE_DCA |
652f093f | 8910 | if (dca_add_requester(&pdev->dev) == 0) { |
bd0362dd | 8911 | adapter->flags |= IXGBE_FLAG_DCA_ENABLED; |
bd0362dd JC |
8912 | ixgbe_setup_dca(adapter); |
8913 | } | |
8914 | #endif | |
1cdd1ec8 | 8915 | if (adapter->flags & IXGBE_FLAG_SRIOV_ENABLED) { |
396e799c | 8916 | e_info(probe, "IOV is enabled with %d VFs\n", adapter->num_vfs); |
1cdd1ec8 GR |
8917 | for (i = 0; i < adapter->num_vfs; i++) |
8918 | ixgbe_vf_configuration(pdev, (i | 0x10000000)); | |
8919 | } | |
8920 | ||
2466dd9c JK |
8921 | /* firmware requires driver version to be 0xFFFFFFFF |
8922 | * since os does not support feature | |
8923 | */ | |
9612de92 | 8924 | if (hw->mac.ops.set_fw_drv_ver) |
2466dd9c JK |
8925 | hw->mac.ops.set_fw_drv_ver(hw, 0xFF, 0xFF, 0xFF, |
8926 | 0xFF); | |
9612de92 | 8927 | |
0365e6e4 PW |
8928 | /* add san mac addr to netdev */ |
8929 | ixgbe_add_sanmac_netdev(netdev); | |
9a799d71 | 8930 | |
ea81875a | 8931 | e_dev_info("%s\n", ixgbe_default_device_descr); |
3ca8bc6d | 8932 | |
1210982b | 8933 | #ifdef CONFIG_IXGBE_HWMON |
3ca8bc6d DS |
8934 | if (ixgbe_sysfs_init(adapter)) |
8935 | e_err(probe, "failed to allocate sysfs resources\n"); | |
1210982b | 8936 | #endif /* CONFIG_IXGBE_HWMON */ |
3ca8bc6d | 8937 | |
00949167 | 8938 | ixgbe_dbg_adapter_init(adapter); |
00949167 | 8939 | |
d1a35ee2 ET |
8940 | /* setup link for SFP devices with MNG FW, else wait for IXGBE_UP */ |
8941 | if (ixgbe_mng_enabled(hw) && ixgbe_is_sfp(hw) && hw->mac.ops.setup_link) | |
0b2679d6 DS |
8942 | hw->mac.ops.setup_link(hw, |
8943 | IXGBE_LINK_SPEED_10GB_FULL | IXGBE_LINK_SPEED_1GB_FULL, | |
8944 | true); | |
8945 | ||
9a799d71 AK |
8946 | return 0; |
8947 | ||
8948 | err_register: | |
5eba3699 | 8949 | ixgbe_release_hw_control(adapter); |
7a921c93 | 8950 | ixgbe_clear_interrupt_scheme(adapter); |
9a799d71 | 8951 | err_sw_init: |
99d74487 | 8952 | ixgbe_disable_sriov(adapter); |
7086400d | 8953 | adapter->flags2 &= ~IXGBE_FLAG2_SEARCH_FOR_SFP; |
2a1a091c | 8954 | iounmap(adapter->io_addr); |
5d7daa35 | 8955 | kfree(adapter->mac_table); |
9a799d71 | 8956 | err_ioremap: |
b5b2ffc0 | 8957 | disable_dev = !test_and_set_bit(__IXGBE_DISABLED, &adapter->state); |
9a799d71 AK |
8958 | free_netdev(netdev); |
8959 | err_alloc_etherdev: | |
e8e9f696 JP |
8960 | pci_release_selected_regions(pdev, |
8961 | pci_select_bars(pdev, IORESOURCE_MEM)); | |
9a799d71 AK |
8962 | err_pci_reg: |
8963 | err_dma: | |
b5b2ffc0 | 8964 | if (!adapter || disable_dev) |
41c62843 | 8965 | pci_disable_device(pdev); |
9a799d71 AK |
8966 | return err; |
8967 | } | |
8968 | ||
8969 | /** | |
8970 | * ixgbe_remove - Device Removal Routine | |
8971 | * @pdev: PCI device information struct | |
8972 | * | |
8973 | * ixgbe_remove is called by the PCI subsystem to alert the driver | |
8974 | * that it should release a PCI device. The could be caused by a | |
8975 | * Hot-Plug event, or because the driver is going to be removed from | |
8976 | * memory. | |
8977 | **/ | |
9f9a12f8 | 8978 | static void ixgbe_remove(struct pci_dev *pdev) |
9a799d71 | 8979 | { |
c60fbb00 | 8980 | struct ixgbe_adapter *adapter = pci_get_drvdata(pdev); |
0fb6a55c | 8981 | struct net_device *netdev; |
b5b2ffc0 | 8982 | bool disable_dev; |
9a799d71 | 8983 | |
0fb6a55c ET |
8984 | /* if !adapter then we already cleaned up in probe */ |
8985 | if (!adapter) | |
8986 | return; | |
8987 | ||
8988 | netdev = adapter->netdev; | |
00949167 | 8989 | ixgbe_dbg_adapter_exit(adapter); |
00949167 | 8990 | |
09f40aed | 8991 | set_bit(__IXGBE_REMOVING, &adapter->state); |
7086400d | 8992 | cancel_work_sync(&adapter->service_task); |
9a799d71 | 8993 | |
3a6a4eda | 8994 | |
5dd2d332 | 8995 | #ifdef CONFIG_IXGBE_DCA |
bd0362dd JC |
8996 | if (adapter->flags & IXGBE_FLAG_DCA_ENABLED) { |
8997 | adapter->flags &= ~IXGBE_FLAG_DCA_ENABLED; | |
8998 | dca_remove_requester(&pdev->dev); | |
8999 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_DCA_CTRL, 1); | |
9000 | } | |
9001 | ||
9002 | #endif | |
1210982b | 9003 | #ifdef CONFIG_IXGBE_HWMON |
3ca8bc6d | 9004 | ixgbe_sysfs_exit(adapter); |
1210982b | 9005 | #endif /* CONFIG_IXGBE_HWMON */ |
3ca8bc6d | 9006 | |
0365e6e4 PW |
9007 | /* remove the added san mac */ |
9008 | ixgbe_del_sanmac_netdev(netdev); | |
9009 | ||
c4900be0 DS |
9010 | if (netdev->reg_state == NETREG_REGISTERED) |
9011 | unregister_netdev(netdev); | |
9a799d71 | 9012 | |
da36b647 GR |
9013 | #ifdef CONFIG_PCI_IOV |
9014 | /* | |
9015 | * Only disable SR-IOV on unload if the user specified the now | |
9016 | * deprecated max_vfs module parameter. | |
9017 | */ | |
9018 | if (max_vfs) | |
9019 | ixgbe_disable_sriov(adapter); | |
9020 | #endif | |
7a921c93 | 9021 | ixgbe_clear_interrupt_scheme(adapter); |
5eba3699 | 9022 | |
021230d4 | 9023 | ixgbe_release_hw_control(adapter); |
9a799d71 | 9024 | |
2b1588c3 AD |
9025 | #ifdef CONFIG_DCB |
9026 | kfree(adapter->ixgbe_ieee_pfc); | |
9027 | kfree(adapter->ixgbe_ieee_ets); | |
9028 | ||
9029 | #endif | |
2a1a091c | 9030 | iounmap(adapter->io_addr); |
9ce77666 | 9031 | pci_release_selected_regions(pdev, pci_select_bars(pdev, |
e8e9f696 | 9032 | IORESOURCE_MEM)); |
9a799d71 | 9033 | |
849c4542 | 9034 | e_dev_info("complete\n"); |
021230d4 | 9035 | |
5d7daa35 | 9036 | kfree(adapter->mac_table); |
b5b2ffc0 | 9037 | disable_dev = !test_and_set_bit(__IXGBE_DISABLED, &adapter->state); |
9a799d71 AK |
9038 | free_netdev(netdev); |
9039 | ||
19d5afd4 | 9040 | pci_disable_pcie_error_reporting(pdev); |
6fabd715 | 9041 | |
b5b2ffc0 | 9042 | if (disable_dev) |
41c62843 | 9043 | pci_disable_device(pdev); |
9a799d71 AK |
9044 | } |
9045 | ||
9046 | /** | |
9047 | * ixgbe_io_error_detected - called when PCI error is detected | |
9048 | * @pdev: Pointer to PCI device | |
9049 | * @state: The current pci connection state | |
9050 | * | |
9051 | * This function is called after a PCI bus error affecting | |
9052 | * this device has been detected. | |
9053 | */ | |
9054 | static pci_ers_result_t ixgbe_io_error_detected(struct pci_dev *pdev, | |
e8e9f696 | 9055 | pci_channel_state_t state) |
9a799d71 | 9056 | { |
c60fbb00 AD |
9057 | struct ixgbe_adapter *adapter = pci_get_drvdata(pdev); |
9058 | struct net_device *netdev = adapter->netdev; | |
9a799d71 | 9059 | |
83c61fa9 | 9060 | #ifdef CONFIG_PCI_IOV |
14438464 | 9061 | struct ixgbe_hw *hw = &adapter->hw; |
83c61fa9 GR |
9062 | struct pci_dev *bdev, *vfdev; |
9063 | u32 dw0, dw1, dw2, dw3; | |
9064 | int vf, pos; | |
9065 | u16 req_id, pf_func; | |
9066 | ||
9067 | if (adapter->hw.mac.type == ixgbe_mac_82598EB || | |
9068 | adapter->num_vfs == 0) | |
9069 | goto skip_bad_vf_detection; | |
9070 | ||
9071 | bdev = pdev->bus->self; | |
62f87c0e | 9072 | while (bdev && (pci_pcie_type(bdev) != PCI_EXP_TYPE_ROOT_PORT)) |
83c61fa9 GR |
9073 | bdev = bdev->bus->self; |
9074 | ||
9075 | if (!bdev) | |
9076 | goto skip_bad_vf_detection; | |
9077 | ||
9078 | pos = pci_find_ext_capability(bdev, PCI_EXT_CAP_ID_ERR); | |
9079 | if (!pos) | |
9080 | goto skip_bad_vf_detection; | |
9081 | ||
14438464 MR |
9082 | dw0 = ixgbe_read_pci_cfg_dword(hw, pos + PCI_ERR_HEADER_LOG); |
9083 | dw1 = ixgbe_read_pci_cfg_dword(hw, pos + PCI_ERR_HEADER_LOG + 4); | |
9084 | dw2 = ixgbe_read_pci_cfg_dword(hw, pos + PCI_ERR_HEADER_LOG + 8); | |
9085 | dw3 = ixgbe_read_pci_cfg_dword(hw, pos + PCI_ERR_HEADER_LOG + 12); | |
9086 | if (ixgbe_removed(hw->hw_addr)) | |
9087 | goto skip_bad_vf_detection; | |
83c61fa9 GR |
9088 | |
9089 | req_id = dw1 >> 16; | |
9090 | /* On the 82599 if bit 7 of the requestor ID is set then it's a VF */ | |
9091 | if (!(req_id & 0x0080)) | |
9092 | goto skip_bad_vf_detection; | |
9093 | ||
9094 | pf_func = req_id & 0x01; | |
9095 | if ((pf_func & 1) == (pdev->devfn & 1)) { | |
9096 | unsigned int device_id; | |
9097 | ||
9098 | vf = (req_id & 0x7F) >> 1; | |
9099 | e_dev_err("VF %d has caused a PCIe error\n", vf); | |
9100 | e_dev_err("TLP: dw0: %8.8x\tdw1: %8.8x\tdw2: " | |
9101 | "%8.8x\tdw3: %8.8x\n", | |
9102 | dw0, dw1, dw2, dw3); | |
9103 | switch (adapter->hw.mac.type) { | |
9104 | case ixgbe_mac_82599EB: | |
9105 | device_id = IXGBE_82599_VF_DEVICE_ID; | |
9106 | break; | |
9107 | case ixgbe_mac_X540: | |
9108 | device_id = IXGBE_X540_VF_DEVICE_ID; | |
9109 | break; | |
9a75a1ac DS |
9110 | case ixgbe_mac_X550: |
9111 | device_id = IXGBE_DEV_ID_X550_VF; | |
9112 | break; | |
9113 | case ixgbe_mac_X550EM_x: | |
9114 | device_id = IXGBE_DEV_ID_X550EM_X_VF; | |
9115 | break; | |
83c61fa9 GR |
9116 | default: |
9117 | device_id = 0; | |
9118 | break; | |
9119 | } | |
9120 | ||
9121 | /* Find the pci device of the offending VF */ | |
36e90319 | 9122 | vfdev = pci_get_device(PCI_VENDOR_ID_INTEL, device_id, NULL); |
83c61fa9 GR |
9123 | while (vfdev) { |
9124 | if (vfdev->devfn == (req_id & 0xFF)) | |
9125 | break; | |
36e90319 | 9126 | vfdev = pci_get_device(PCI_VENDOR_ID_INTEL, |
83c61fa9 GR |
9127 | device_id, vfdev); |
9128 | } | |
9129 | /* | |
9130 | * There's a slim chance the VF could have been hot plugged, | |
9131 | * so if it is no longer present we don't need to issue the | |
9132 | * VFLR. Just clean up the AER in that case. | |
9133 | */ | |
9134 | if (vfdev) { | |
9079e416 | 9135 | ixgbe_issue_vf_flr(adapter, vfdev); |
b4fafbe9 GR |
9136 | /* Free device reference count */ |
9137 | pci_dev_put(vfdev); | |
83c61fa9 GR |
9138 | } |
9139 | ||
9140 | pci_cleanup_aer_uncorrect_error_status(pdev); | |
9141 | } | |
9142 | ||
9143 | /* | |
9144 | * Even though the error may have occurred on the other port | |
9145 | * we still need to increment the vf error reference count for | |
9146 | * both ports because the I/O resume function will be called | |
9147 | * for both of them. | |
9148 | */ | |
9149 | adapter->vferr_refcount++; | |
9150 | ||
9151 | return PCI_ERS_RESULT_RECOVERED; | |
9152 | ||
9153 | skip_bad_vf_detection: | |
9154 | #endif /* CONFIG_PCI_IOV */ | |
58cf663f MR |
9155 | if (!test_bit(__IXGBE_SERVICE_INITED, &adapter->state)) |
9156 | return PCI_ERS_RESULT_DISCONNECT; | |
9157 | ||
41c62843 | 9158 | rtnl_lock(); |
9a799d71 AK |
9159 | netif_device_detach(netdev); |
9160 | ||
41c62843 MR |
9161 | if (state == pci_channel_io_perm_failure) { |
9162 | rtnl_unlock(); | |
3044b8d1 | 9163 | return PCI_ERS_RESULT_DISCONNECT; |
41c62843 | 9164 | } |
3044b8d1 | 9165 | |
9a799d71 AK |
9166 | if (netif_running(netdev)) |
9167 | ixgbe_down(adapter); | |
41c62843 MR |
9168 | |
9169 | if (!test_and_set_bit(__IXGBE_DISABLED, &adapter->state)) | |
9170 | pci_disable_device(pdev); | |
9171 | rtnl_unlock(); | |
9a799d71 | 9172 | |
b4617240 | 9173 | /* Request a slot reset. */ |
9a799d71 AK |
9174 | return PCI_ERS_RESULT_NEED_RESET; |
9175 | } | |
9176 | ||
9177 | /** | |
9178 | * ixgbe_io_slot_reset - called after the pci bus has been reset. | |
9179 | * @pdev: Pointer to PCI device | |
9180 | * | |
9181 | * Restart the card from scratch, as if from a cold-boot. | |
9182 | */ | |
9183 | static pci_ers_result_t ixgbe_io_slot_reset(struct pci_dev *pdev) | |
9184 | { | |
c60fbb00 | 9185 | struct ixgbe_adapter *adapter = pci_get_drvdata(pdev); |
6fabd715 PWJ |
9186 | pci_ers_result_t result; |
9187 | int err; | |
9a799d71 | 9188 | |
9ce77666 | 9189 | if (pci_enable_device_mem(pdev)) { |
396e799c | 9190 | e_err(probe, "Cannot re-enable PCI device after reset.\n"); |
6fabd715 PWJ |
9191 | result = PCI_ERS_RESULT_DISCONNECT; |
9192 | } else { | |
4e857c58 | 9193 | smp_mb__before_atomic(); |
41c62843 | 9194 | clear_bit(__IXGBE_DISABLED, &adapter->state); |
0391bbe3 | 9195 | adapter->hw.hw_addr = adapter->io_addr; |
6fabd715 PWJ |
9196 | pci_set_master(pdev); |
9197 | pci_restore_state(pdev); | |
c0e1f68b | 9198 | pci_save_state(pdev); |
9a799d71 | 9199 | |
dd4d8ca6 | 9200 | pci_wake_from_d3(pdev, false); |
9a799d71 | 9201 | |
6fabd715 | 9202 | ixgbe_reset(adapter); |
88512539 | 9203 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_WUS, ~0); |
6fabd715 PWJ |
9204 | result = PCI_ERS_RESULT_RECOVERED; |
9205 | } | |
9206 | ||
9207 | err = pci_cleanup_aer_uncorrect_error_status(pdev); | |
9208 | if (err) { | |
849c4542 ET |
9209 | e_dev_err("pci_cleanup_aer_uncorrect_error_status " |
9210 | "failed 0x%0x\n", err); | |
6fabd715 PWJ |
9211 | /* non-fatal, continue */ |
9212 | } | |
9a799d71 | 9213 | |
6fabd715 | 9214 | return result; |
9a799d71 AK |
9215 | } |
9216 | ||
9217 | /** | |
9218 | * ixgbe_io_resume - called when traffic can start flowing again. | |
9219 | * @pdev: Pointer to PCI device | |
9220 | * | |
9221 | * This callback is called when the error recovery driver tells us that | |
9222 | * its OK to resume normal operation. | |
9223 | */ | |
9224 | static void ixgbe_io_resume(struct pci_dev *pdev) | |
9225 | { | |
c60fbb00 AD |
9226 | struct ixgbe_adapter *adapter = pci_get_drvdata(pdev); |
9227 | struct net_device *netdev = adapter->netdev; | |
9a799d71 | 9228 | |
83c61fa9 GR |
9229 | #ifdef CONFIG_PCI_IOV |
9230 | if (adapter->vferr_refcount) { | |
9231 | e_info(drv, "Resuming after VF err\n"); | |
9232 | adapter->vferr_refcount--; | |
9233 | return; | |
9234 | } | |
9235 | ||
9236 | #endif | |
c7ccde0f AD |
9237 | if (netif_running(netdev)) |
9238 | ixgbe_up(adapter); | |
9a799d71 AK |
9239 | |
9240 | netif_device_attach(netdev); | |
9a799d71 AK |
9241 | } |
9242 | ||
3646f0e5 | 9243 | static const struct pci_error_handlers ixgbe_err_handler = { |
9a799d71 AK |
9244 | .error_detected = ixgbe_io_error_detected, |
9245 | .slot_reset = ixgbe_io_slot_reset, | |
9246 | .resume = ixgbe_io_resume, | |
9247 | }; | |
9248 | ||
9249 | static struct pci_driver ixgbe_driver = { | |
9250 | .name = ixgbe_driver_name, | |
9251 | .id_table = ixgbe_pci_tbl, | |
9252 | .probe = ixgbe_probe, | |
9f9a12f8 | 9253 | .remove = ixgbe_remove, |
9a799d71 AK |
9254 | #ifdef CONFIG_PM |
9255 | .suspend = ixgbe_suspend, | |
9256 | .resume = ixgbe_resume, | |
9257 | #endif | |
9258 | .shutdown = ixgbe_shutdown, | |
da36b647 | 9259 | .sriov_configure = ixgbe_pci_sriov_configure, |
9a799d71 AK |
9260 | .err_handler = &ixgbe_err_handler |
9261 | }; | |
9262 | ||
9263 | /** | |
9264 | * ixgbe_init_module - Driver Registration Routine | |
9265 | * | |
9266 | * ixgbe_init_module is the first routine called when the driver is | |
9267 | * loaded. All it does is register with the PCI subsystem. | |
9268 | **/ | |
9269 | static int __init ixgbe_init_module(void) | |
9270 | { | |
9271 | int ret; | |
c7689578 | 9272 | pr_info("%s - version %s\n", ixgbe_driver_string, ixgbe_driver_version); |
849c4542 | 9273 | pr_info("%s\n", ixgbe_copyright); |
9a799d71 | 9274 | |
00949167 | 9275 | ixgbe_dbg_init(); |
00949167 | 9276 | |
f01fc1a8 JK |
9277 | ret = pci_register_driver(&ixgbe_driver); |
9278 | if (ret) { | |
f01fc1a8 | 9279 | ixgbe_dbg_exit(); |
f01fc1a8 JK |
9280 | return ret; |
9281 | } | |
9282 | ||
5dd2d332 | 9283 | #ifdef CONFIG_IXGBE_DCA |
bd0362dd | 9284 | dca_register_notify(&dca_notifier); |
bd0362dd | 9285 | #endif |
5dd2d332 | 9286 | |
f01fc1a8 | 9287 | return 0; |
9a799d71 | 9288 | } |
b4617240 | 9289 | |
9a799d71 AK |
9290 | module_init(ixgbe_init_module); |
9291 | ||
9292 | /** | |
9293 | * ixgbe_exit_module - Driver Exit Cleanup Routine | |
9294 | * | |
9295 | * ixgbe_exit_module is called just before the driver is removed | |
9296 | * from memory. | |
9297 | **/ | |
9298 | static void __exit ixgbe_exit_module(void) | |
9299 | { | |
5dd2d332 | 9300 | #ifdef CONFIG_IXGBE_DCA |
bd0362dd JC |
9301 | dca_unregister_notify(&dca_notifier); |
9302 | #endif | |
9a799d71 | 9303 | pci_unregister_driver(&ixgbe_driver); |
00949167 | 9304 | |
00949167 | 9305 | ixgbe_dbg_exit(); |
9a799d71 | 9306 | } |
bd0362dd | 9307 | |
5dd2d332 | 9308 | #ifdef CONFIG_IXGBE_DCA |
bd0362dd | 9309 | static int ixgbe_notify_dca(struct notifier_block *nb, unsigned long event, |
e8e9f696 | 9310 | void *p) |
bd0362dd JC |
9311 | { |
9312 | int ret_val; | |
9313 | ||
9314 | ret_val = driver_for_each_device(&ixgbe_driver.driver, NULL, &event, | |
e8e9f696 | 9315 | __ixgbe_notify_dca); |
bd0362dd JC |
9316 | |
9317 | return ret_val ? NOTIFY_BAD : NOTIFY_DONE; | |
9318 | } | |
b453368d | 9319 | |
5dd2d332 | 9320 | #endif /* CONFIG_IXGBE_DCA */ |
849c4542 | 9321 | |
9a799d71 AK |
9322 | module_exit(ixgbe_exit_module); |
9323 | ||
9324 | /* ixgbe_main.c */ |