1 /*******************************************************************************
3 Intel 10 Gigabit PCI Express Linux driver
4 Copyright(c) 1999 - 2015 Intel Corporation.
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.
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
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.
19 The full GNU General Public License is included in this distribution in
20 the file called "COPYING".
23 Linux NICS <linux.nics@intel.com>
24 e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
25 Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
27 *******************************************************************************/
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>
36 #include <linux/interrupt.h>
38 #include <linux/tcp.h>
39 #include <linux/sctp.h>
40 #include <linux/pkt_sched.h>
41 #include <linux/ipv6.h>
42 #include <linux/slab.h>
43 #include <net/checksum.h>
44 #include <net/ip6_checksum.h>
45 #include <linux/etherdevice.h>
46 #include <linux/ethtool.h>
48 #include <linux/if_vlan.h>
49 #include <linux/if_macvlan.h>
50 #include <linux/if_bridge.h>
51 #include <linux/prefetch.h>
52 #include <scsi/fc/fc_fcoe.h>
53 #include <net/vxlan.h>
56 #include <linux/of_net.h>
60 #include <asm/idprom.h>
65 #include "ixgbe_common.h"
66 #include "ixgbe_dcb_82599.h"
67 #include "ixgbe_sriov.h"
69 char ixgbe_driver_name
[] = "ixgbe";
70 static const char ixgbe_driver_string
[] =
71 "Intel(R) 10 Gigabit PCI Express Network Driver";
73 char ixgbe_default_device_descr
[] =
74 "Intel(R) 10 Gigabit Network Connection";
76 static char ixgbe_default_device_descr
[] =
77 "Intel(R) 10 Gigabit Network Connection";
79 #define DRV_VERSION "4.2.1-k"
80 const char ixgbe_driver_version
[] = DRV_VERSION
;
81 static const char ixgbe_copyright
[] =
82 "Copyright (c) 1999-2015 Intel Corporation.";
84 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";
86 static const struct ixgbe_info
*ixgbe_info_tbl
[] = {
87 [board_82598
] = &ixgbe_82598_info
,
88 [board_82599
] = &ixgbe_82599_info
,
89 [board_X540
] = &ixgbe_X540_info
,
90 [board_X550
] = &ixgbe_X550_info
,
91 [board_X550EM_x
] = &ixgbe_X550EM_x_info
,
94 /* ixgbe_pci_tbl - PCI Device ID Table
96 * Wildcard entries (PCI_ANY_ID) should come last
97 * Last entry must be all 0s
99 * { Vendor ID, Device ID, SubVendor ID, SubDevice ID,
100 * Class, Class Mask, private data (not used) }
102 static const struct pci_device_id ixgbe_pci_tbl
[] = {
103 {PCI_VDEVICE(INTEL
, IXGBE_DEV_ID_82598
), board_82598
},
104 {PCI_VDEVICE(INTEL
, IXGBE_DEV_ID_82598AF_DUAL_PORT
), board_82598
},
105 {PCI_VDEVICE(INTEL
, IXGBE_DEV_ID_82598AF_SINGLE_PORT
), board_82598
},
106 {PCI_VDEVICE(INTEL
, IXGBE_DEV_ID_82598AT
), board_82598
},
107 {PCI_VDEVICE(INTEL
, IXGBE_DEV_ID_82598AT2
), board_82598
},
108 {PCI_VDEVICE(INTEL
, IXGBE_DEV_ID_82598EB_CX4
), board_82598
},
109 {PCI_VDEVICE(INTEL
, IXGBE_DEV_ID_82598_CX4_DUAL_PORT
), board_82598
},
110 {PCI_VDEVICE(INTEL
, IXGBE_DEV_ID_82598_DA_DUAL_PORT
), board_82598
},
111 {PCI_VDEVICE(INTEL
, IXGBE_DEV_ID_82598_SR_DUAL_PORT_EM
), board_82598
},
112 {PCI_VDEVICE(INTEL
, IXGBE_DEV_ID_82598EB_XF_LR
), board_82598
},
113 {PCI_VDEVICE(INTEL
, IXGBE_DEV_ID_82598EB_SFP_LOM
), board_82598
},
114 {PCI_VDEVICE(INTEL
, IXGBE_DEV_ID_82598_BX
), board_82598
},
115 {PCI_VDEVICE(INTEL
, IXGBE_DEV_ID_82599_KX4
), board_82599
},
116 {PCI_VDEVICE(INTEL
, IXGBE_DEV_ID_82599_XAUI_LOM
), board_82599
},
117 {PCI_VDEVICE(INTEL
, IXGBE_DEV_ID_82599_KR
), board_82599
},
118 {PCI_VDEVICE(INTEL
, IXGBE_DEV_ID_82599_SFP
), board_82599
},
119 {PCI_VDEVICE(INTEL
, IXGBE_DEV_ID_82599_SFP_EM
), board_82599
},
120 {PCI_VDEVICE(INTEL
, IXGBE_DEV_ID_82599_KX4_MEZZ
), board_82599
},
121 {PCI_VDEVICE(INTEL
, IXGBE_DEV_ID_82599_CX4
), board_82599
},
122 {PCI_VDEVICE(INTEL
, IXGBE_DEV_ID_82599_BACKPLANE_FCOE
), board_82599
},
123 {PCI_VDEVICE(INTEL
, IXGBE_DEV_ID_82599_SFP_FCOE
), board_82599
},
124 {PCI_VDEVICE(INTEL
, IXGBE_DEV_ID_82599_T3_LOM
), board_82599
},
125 {PCI_VDEVICE(INTEL
, IXGBE_DEV_ID_82599_COMBO_BACKPLANE
), board_82599
},
126 {PCI_VDEVICE(INTEL
, IXGBE_DEV_ID_X540T
), board_X540
},
127 {PCI_VDEVICE(INTEL
, IXGBE_DEV_ID_82599_SFP_SF2
), board_82599
},
128 {PCI_VDEVICE(INTEL
, IXGBE_DEV_ID_82599_LS
), board_82599
},
129 {PCI_VDEVICE(INTEL
, IXGBE_DEV_ID_82599_QSFP_SF_QP
), board_82599
},
130 {PCI_VDEVICE(INTEL
, IXGBE_DEV_ID_82599EN_SFP
), board_82599
},
131 {PCI_VDEVICE(INTEL
, IXGBE_DEV_ID_82599_SFP_SF_QP
), board_82599
},
132 {PCI_VDEVICE(INTEL
, IXGBE_DEV_ID_X540T1
), board_X540
},
133 {PCI_VDEVICE(INTEL
, IXGBE_DEV_ID_X550T
), board_X550
},
134 {PCI_VDEVICE(INTEL
, IXGBE_DEV_ID_X550EM_X_KX4
), board_X550EM_x
},
135 {PCI_VDEVICE(INTEL
, IXGBE_DEV_ID_X550EM_X_KR
), board_X550EM_x
},
136 {PCI_VDEVICE(INTEL
, IXGBE_DEV_ID_X550EM_X_10G_T
), board_X550EM_x
},
137 {PCI_VDEVICE(INTEL
, IXGBE_DEV_ID_X550EM_X_SFP
), board_X550EM_x
},
138 /* required last entry */
141 MODULE_DEVICE_TABLE(pci
, ixgbe_pci_tbl
);
143 #ifdef CONFIG_IXGBE_DCA
144 static int ixgbe_notify_dca(struct notifier_block
*, unsigned long event
,
146 static struct notifier_block dca_notifier
= {
147 .notifier_call
= ixgbe_notify_dca
,
153 #ifdef CONFIG_PCI_IOV
154 static unsigned int max_vfs
;
155 module_param(max_vfs
, uint
, 0);
156 MODULE_PARM_DESC(max_vfs
,
157 "Maximum number of virtual functions to allocate per physical function - default is zero and maximum value is 63. (Deprecated)");
158 #endif /* CONFIG_PCI_IOV */
160 static unsigned int allow_unsupported_sfp
;
161 module_param(allow_unsupported_sfp
, uint
, 0);
162 MODULE_PARM_DESC(allow_unsupported_sfp
,
163 "Allow unsupported and untested SFP+ modules on 82599-based adapters");
165 #define DEFAULT_MSG_ENABLE (NETIF_MSG_DRV|NETIF_MSG_PROBE|NETIF_MSG_LINK)
166 static int debug
= -1;
167 module_param(debug
, int, 0);
168 MODULE_PARM_DESC(debug
, "Debug level (0=none,...,16=all)");
170 MODULE_AUTHOR("Intel Corporation, <linux.nics@intel.com>");
171 MODULE_DESCRIPTION("Intel(R) 10 Gigabit PCI Express Network Driver");
172 MODULE_LICENSE("GPL");
173 MODULE_VERSION(DRV_VERSION
);
175 static struct workqueue_struct
*ixgbe_wq
;
177 static bool ixgbe_check_cfg_remove(struct ixgbe_hw
*hw
, struct pci_dev
*pdev
);
179 static int ixgbe_read_pci_cfg_word_parent(struct ixgbe_adapter
*adapter
,
182 struct pci_dev
*parent_dev
;
183 struct pci_bus
*parent_bus
;
185 parent_bus
= adapter
->pdev
->bus
->parent
;
189 parent_dev
= parent_bus
->self
;
193 if (!pci_is_pcie(parent_dev
))
196 pcie_capability_read_word(parent_dev
, reg
, value
);
197 if (*value
== IXGBE_FAILED_READ_CFG_WORD
&&
198 ixgbe_check_cfg_remove(&adapter
->hw
, parent_dev
))
203 static s32
ixgbe_get_parent_bus_info(struct ixgbe_adapter
*adapter
)
205 struct ixgbe_hw
*hw
= &adapter
->hw
;
209 hw
->bus
.type
= ixgbe_bus_type_pci_express
;
211 /* Get the negotiated link width and speed from PCI config space of the
212 * parent, as this device is behind a switch
214 err
= ixgbe_read_pci_cfg_word_parent(adapter
, 18, &link_status
);
216 /* assume caller will handle error case */
220 hw
->bus
.width
= ixgbe_convert_bus_width(link_status
);
221 hw
->bus
.speed
= ixgbe_convert_bus_speed(link_status
);
227 * ixgbe_check_from_parent - Determine whether PCIe info should come from parent
228 * @hw: hw specific details
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
235 static inline bool ixgbe_pcie_from_parent(struct ixgbe_hw
*hw
)
237 switch (hw
->device_id
) {
238 case IXGBE_DEV_ID_82599_SFP_SF_QP
:
239 case IXGBE_DEV_ID_82599_QSFP_SF_QP
:
246 static void ixgbe_check_minimum_link(struct ixgbe_adapter
*adapter
,
249 struct ixgbe_hw
*hw
= &adapter
->hw
;
251 enum pci_bus_speed speed
= PCI_SPEED_UNKNOWN
;
252 enum pcie_link_width width
= PCIE_LNK_WIDTH_UNKNOWN
;
253 struct pci_dev
*pdev
;
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.
259 if (hw
->bus
.type
== ixgbe_bus_type_internal
)
262 /* determine whether to use the parent device */
263 if (ixgbe_pcie_from_parent(&adapter
->hw
))
264 pdev
= adapter
->pdev
->bus
->parent
->self
;
266 pdev
= adapter
->pdev
;
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");
275 case PCIE_SPEED_2_5GT
:
276 /* 8b/10b encoding reduces max throughput by 20% */
279 case PCIE_SPEED_5_0GT
:
280 /* 8b/10b encoding reduces max throughput by 20% */
283 case PCIE_SPEED_8_0GT
:
284 /* 128b/130b encoding reduces throughput by less than 2% */
288 e_dev_warn("Unable to determine PCI Express bandwidth.\n");
292 e_dev_info("PCI Express bandwidth of %dGT/s available\n",
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" :
300 (speed
== PCIE_SPEED_2_5GT
? "20%" :
301 speed
== PCIE_SPEED_5_0GT
? "20%" :
302 speed
== PCIE_SPEED_8_0GT
? "<2%" :
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",
309 e_dev_warn("A slot with more lanes and/or higher speed is suggested.\n");
313 static void ixgbe_service_event_schedule(struct ixgbe_adapter
*adapter
)
315 if (!test_bit(__IXGBE_DOWN
, &adapter
->state
) &&
316 !test_bit(__IXGBE_REMOVING
, &adapter
->state
) &&
317 !test_and_set_bit(__IXGBE_SERVICE_SCHED
, &adapter
->state
))
318 queue_work(ixgbe_wq
, &adapter
->service_task
);
321 static void ixgbe_remove_adapter(struct ixgbe_hw
*hw
)
323 struct ixgbe_adapter
*adapter
= hw
->back
;
328 e_dev_err("Adapter removed\n");
329 if (test_bit(__IXGBE_SERVICE_INITED
, &adapter
->state
))
330 ixgbe_service_event_schedule(adapter
);
333 static void ixgbe_check_remove(struct ixgbe_hw
*hw
, u32 reg
)
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.
343 if (reg
== IXGBE_STATUS
) {
344 ixgbe_remove_adapter(hw
);
347 value
= ixgbe_read_reg(hw
, IXGBE_STATUS
);
348 if (value
== IXGBE_FAILED_READ_REG
)
349 ixgbe_remove_adapter(hw
);
353 * ixgbe_read_reg - Read from device register
354 * @hw: hw specific details
355 * @reg: offset of register to read
357 * Returns : value read or IXGBE_FAILED_READ_REG if removed
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).
365 u32
ixgbe_read_reg(struct ixgbe_hw
*hw
, u32 reg
)
367 u8 __iomem
*reg_addr
= ACCESS_ONCE(hw
->hw_addr
);
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
);
378 static bool ixgbe_check_cfg_remove(struct ixgbe_hw
*hw
, struct pci_dev
*pdev
)
382 pci_read_config_word(pdev
, PCI_VENDOR_ID
, &value
);
383 if (value
== IXGBE_FAILED_READ_CFG_WORD
) {
384 ixgbe_remove_adapter(hw
);
390 u16
ixgbe_read_pci_cfg_word(struct ixgbe_hw
*hw
, u32 reg
)
392 struct ixgbe_adapter
*adapter
= hw
->back
;
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
;
404 #ifdef CONFIG_PCI_IOV
405 static u32
ixgbe_read_pci_cfg_dword(struct ixgbe_hw
*hw
, u32 reg
)
407 struct ixgbe_adapter
*adapter
= hw
->back
;
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
;
418 #endif /* CONFIG_PCI_IOV */
420 void ixgbe_write_pci_cfg_word(struct ixgbe_hw
*hw
, u32 reg
, u16 value
)
422 struct ixgbe_adapter
*adapter
= hw
->back
;
424 if (ixgbe_removed(hw
->hw_addr
))
426 pci_write_config_word(adapter
->pdev
, reg
, value
);
429 static void ixgbe_service_event_complete(struct ixgbe_adapter
*adapter
)
431 BUG_ON(!test_bit(__IXGBE_SERVICE_SCHED
, &adapter
->state
));
433 /* flush memory to make sure state is correct before next watchdog */
434 smp_mb__before_atomic();
435 clear_bit(__IXGBE_SERVICE_SCHED
, &adapter
->state
);
438 struct ixgbe_reg_info
{
443 static const struct ixgbe_reg_info ixgbe_reg_info_tbl
[] = {
445 /* General Registers */
446 {IXGBE_CTRL
, "CTRL"},
447 {IXGBE_STATUS
, "STATUS"},
448 {IXGBE_CTRL_EXT
, "CTRL_EXT"},
450 /* Interrupt Registers */
451 {IXGBE_EICR
, "EICR"},
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"},
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"},
471 /* List Terminator */
477 * ixgbe_regdump - register printout routine
479 static void ixgbe_regdump(struct ixgbe_hw
*hw
, struct ixgbe_reg_info
*reginfo
)
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
));
490 case IXGBE_DCA_RXCTRL(0):
491 for (i
= 0; i
< 64; i
++)
492 regs
[i
] = IXGBE_READ_REG(hw
, IXGBE_DCA_RXCTRL(i
));
495 for (i
= 0; i
< 64; i
++)
496 regs
[i
] = IXGBE_READ_REG(hw
, IXGBE_RDLEN(i
));
499 for (i
= 0; i
< 64; i
++)
500 regs
[i
] = IXGBE_READ_REG(hw
, IXGBE_RDH(i
));
503 for (i
= 0; i
< 64; i
++)
504 regs
[i
] = IXGBE_READ_REG(hw
, IXGBE_RDT(i
));
506 case IXGBE_RXDCTL(0):
507 for (i
= 0; i
< 64; i
++)
508 regs
[i
] = IXGBE_READ_REG(hw
, IXGBE_RXDCTL(i
));
511 for (i
= 0; i
< 64; i
++)
512 regs
[i
] = IXGBE_READ_REG(hw
, IXGBE_RDBAL(i
));
515 for (i
= 0; i
< 64; i
++)
516 regs
[i
] = IXGBE_READ_REG(hw
, IXGBE_RDBAH(i
));
519 for (i
= 0; i
< 64; i
++)
520 regs
[i
] = IXGBE_READ_REG(hw
, IXGBE_TDBAL(i
));
523 for (i
= 0; i
< 64; i
++)
524 regs
[i
] = IXGBE_READ_REG(hw
, IXGBE_TDBAH(i
));
527 for (i
= 0; i
< 64; i
++)
528 regs
[i
] = IXGBE_READ_REG(hw
, IXGBE_TDLEN(i
));
531 for (i
= 0; i
< 64; i
++)
532 regs
[i
] = IXGBE_READ_REG(hw
, IXGBE_TDH(i
));
535 for (i
= 0; i
< 64; i
++)
536 regs
[i
] = IXGBE_READ_REG(hw
, IXGBE_TDT(i
));
538 case IXGBE_TXDCTL(0):
539 for (i
= 0; i
< 64; i
++)
540 regs
[i
] = IXGBE_READ_REG(hw
, IXGBE_TXDCTL(i
));
543 pr_info("%-15s %08x\n", reginfo
->name
,
544 IXGBE_READ_REG(hw
, reginfo
->ofs
));
548 for (i
= 0; i
< 8; i
++) {
549 snprintf(rname
, 16, "%s[%d-%d]", reginfo
->name
, i
*8, i
*8+7);
550 pr_err("%-15s", rname
);
551 for (j
= 0; j
< 8; j
++)
552 pr_cont(" %08x", regs
[i
*8+j
]);
559 * ixgbe_dump - Print registers, tx-rings and rx-rings
561 static void ixgbe_dump(struct ixgbe_adapter
*adapter
)
563 struct net_device
*netdev
= adapter
->netdev
;
564 struct ixgbe_hw
*hw
= &adapter
->hw
;
565 struct ixgbe_reg_info
*reginfo
;
567 struct ixgbe_ring
*tx_ring
;
568 struct ixgbe_tx_buffer
*tx_buffer
;
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
;
577 if (!netif_msg_hw(adapter
))
580 /* Print netdevice Info */
582 dev_info(&adapter
->pdev
->dev
, "Net device Info\n");
583 pr_info("Device Name state "
584 "trans_start last_rx\n");
585 pr_info("%-15s %016lX %016lX %016lX\n",
592 /* Print Registers */
593 dev_info(&adapter
->pdev
->dev
, "Register Dump\n");
594 pr_info(" Register Name Value\n");
595 for (reginfo
= (struct ixgbe_reg_info
*)ixgbe_reg_info_tbl
;
596 reginfo
->name
; reginfo
++) {
597 ixgbe_regdump(hw
, reginfo
);
600 /* Print TX Ring Summary */
601 if (!netdev
|| !netif_running(netdev
))
604 dev_info(&adapter
->pdev
->dev
, "TX Rings Summary\n");
605 pr_info(" %s %s %s %s\n",
606 "Queue [NTU] [NTC] [bi(ntc)->dma ]",
607 "leng", "ntw", "timestamp");
608 for (n
= 0; n
< adapter
->num_tx_queues
; n
++) {
609 tx_ring
= adapter
->tx_ring
[n
];
610 tx_buffer
= &tx_ring
->tx_buffer_info
[tx_ring
->next_to_clean
];
611 pr_info(" %5d %5X %5X %016llX %08X %p %016llX\n",
612 n
, tx_ring
->next_to_use
, tx_ring
->next_to_clean
,
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
);
620 if (!netif_msg_tx_done(adapter
))
621 goto rx_ring_summary
;
623 dev_info(&adapter
->pdev
->dev
, "TX Rings Dump\n");
625 /* Transmit Descriptor Formats
627 * 82598 Advanced Transmit Descriptor
628 * +--------------------------------------------------------------+
629 * 0 | Buffer Address [63:0] |
630 * +--------------------------------------------------------------+
631 * 8 | PAYLEN | POPTS | IDX | STA | DCMD |DTYP | RSV | DTALEN |
632 * +--------------------------------------------------------------+
633 * 63 46 45 40 39 36 35 32 31 24 23 20 19 0
635 * 82598 Advanced Transmit Descriptor (Write-Back Format)
636 * +--------------------------------------------------------------+
638 * +--------------------------------------------------------------+
639 * 8 | RSV | STA | NXTSEQ |
640 * +--------------------------------------------------------------+
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
651 * 82599+ Advanced Transmit Descriptor (Write-Back Format)
652 * +--------------------------------------------------------------+
654 * +--------------------------------------------------------------+
655 * 8 | RSV | STA | RSV |
656 * +--------------------------------------------------------------+
660 for (n
= 0; n
< adapter
->num_tx_queues
; n
++) {
661 tx_ring
= adapter
->tx_ring
[n
];
662 pr_info("------------------------------------\n");
663 pr_info("TX QUEUE INDEX = %d\n", tx_ring
->queue_index
);
664 pr_info("------------------------------------\n");
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");
670 for (i
= 0; tx_ring
->desc
&& (i
< tx_ring
->count
); i
++) {
671 tx_desc
= IXGBE_TX_DESC(tx_ring
, i
);
672 tx_buffer
= &tx_ring
->tx_buffer_info
[i
];
673 u0
= (struct my_u0
*)tx_desc
;
674 if (dma_unmap_len(tx_buffer
, len
) > 0) {
675 pr_info("T [0x%03X] %016llX %016llX %016llX %08X %p %016llX %p",
679 (u64
)dma_unmap_addr(tx_buffer
, dma
),
680 dma_unmap_len(tx_buffer
, len
),
681 tx_buffer
->next_to_watch
,
682 (u64
)tx_buffer
->time_stamp
,
684 if (i
== tx_ring
->next_to_use
&&
685 i
== tx_ring
->next_to_clean
)
687 else if (i
== tx_ring
->next_to_use
)
689 else if (i
== tx_ring
->next_to_clean
)
694 if (netif_msg_pktdata(adapter
) &&
696 print_hex_dump(KERN_INFO
, "",
697 DUMP_PREFIX_ADDRESS
, 16, 1,
698 tx_buffer
->skb
->data
,
699 dma_unmap_len(tx_buffer
, len
),
705 /* Print RX Rings Summary */
707 dev_info(&adapter
->pdev
->dev
, "RX Rings Summary\n");
708 pr_info("Queue [NTU] [NTC]\n");
709 for (n
= 0; n
< adapter
->num_rx_queues
; n
++) {
710 rx_ring
= adapter
->rx_ring
[n
];
711 pr_info("%5d %5X %5X\n",
712 n
, rx_ring
->next_to_use
, rx_ring
->next_to_clean
);
716 if (!netif_msg_rx_status(adapter
))
719 dev_info(&adapter
->pdev
->dev
, "RX Rings Dump\n");
721 /* Receive Descriptor Formats
723 * 82598 Advanced Receive Descriptor (Read) Format
725 * +-----------------------------------------------------+
726 * 0 | Packet Buffer Address [63:1] |A0/NSE|
727 * +----------------------------------------------+------+
728 * 8 | Header Buffer Address [63:1] | DD |
729 * +-----------------------------------------------------+
732 * 82598 Advanced Receive Descriptor (Write-Back) Format
734 * 63 48 47 32 31 30 21 20 16 15 4 3 0
735 * +------------------------------------------------------+
736 * 0 | RSS Hash / |SPH| HDR_LEN | RSV |Packet| RSS |
737 * | Packet | IP | | | | Type | Type |
738 * | Checksum | Ident | | | | | |
739 * +------------------------------------------------------+
740 * 8 | VLAN Tag | Length | Extended Error | Extended Status |
741 * +------------------------------------------------------+
742 * 63 48 47 32 31 20 19 0
744 * 82599+ Advanced Receive Descriptor (Read) Format
746 * +-----------------------------------------------------+
747 * 0 | Packet Buffer Address [63:1] |A0/NSE|
748 * +----------------------------------------------+------+
749 * 8 | Header Buffer Address [63:1] | DD |
750 * +-----------------------------------------------------+
753 * 82599+ Advanced Receive Descriptor (Write-Back) Format
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
766 for (n
= 0; n
< adapter
->num_rx_queues
; n
++) {
767 rx_ring
= adapter
->rx_ring
[n
];
768 pr_info("------------------------------------\n");
769 pr_info("RX QUEUE INDEX = %d\n", rx_ring
->queue_index
);
770 pr_info("------------------------------------\n");
772 "R [desc] [ PktBuf A0] ",
773 "[ HeadBuf DD] [bi->dma ] [bi->skb ] ",
774 "<-- Adv Rx Read format\n");
776 "RWB[desc] [PcsmIpSHl PtRs] ",
777 "[vl er S cks ln] ---------------- [bi->skb ] ",
778 "<-- Adv Rx Write-Back format\n");
780 for (i
= 0; i
< rx_ring
->count
; i
++) {
781 rx_buffer_info
= &rx_ring
->rx_buffer_info
[i
];
782 rx_desc
= IXGBE_RX_DESC(rx_ring
, i
);
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 */
787 pr_info("RWB[0x%03X] %016llX "
788 "%016llX ---------------- %p", i
,
791 rx_buffer_info
->skb
);
793 pr_info("R [0x%03X] %016llX "
794 "%016llX %016llX %p", i
,
797 (u64
)rx_buffer_info
->dma
,
798 rx_buffer_info
->skb
);
800 if (netif_msg_pktdata(adapter
) &&
801 rx_buffer_info
->dma
) {
802 print_hex_dump(KERN_INFO
, "",
803 DUMP_PREFIX_ADDRESS
, 16, 1,
804 page_address(rx_buffer_info
->page
) +
805 rx_buffer_info
->page_offset
,
806 ixgbe_rx_bufsz(rx_ring
), true);
810 if (i
== rx_ring
->next_to_use
)
812 else if (i
== rx_ring
->next_to_clean
)
821 static void ixgbe_release_hw_control(struct ixgbe_adapter
*adapter
)
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
,
828 ctrl_ext
& ~IXGBE_CTRL_EXT_DRV_LOAD
);
831 static void ixgbe_get_hw_control(struct ixgbe_adapter
*adapter
)
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
,
838 ctrl_ext
| IXGBE_CTRL_EXT_DRV_LOAD
);
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
849 static void ixgbe_set_ivar(struct ixgbe_adapter
*adapter
, s8 direction
,
850 u8 queue
, u8 msix_vector
)
853 struct ixgbe_hw
*hw
= &adapter
->hw
;
854 switch (hw
->mac
.type
) {
855 case ixgbe_mac_82598EB
:
856 msix_vector
|= IXGBE_IVAR_ALLOC_VAL
;
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
);
865 case ixgbe_mac_82599EB
:
868 case ixgbe_mac_X550EM_x
:
869 if (direction
== -1) {
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
);
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
);
893 static inline void ixgbe_irq_rearm_queues(struct ixgbe_adapter
*adapter
,
898 switch (adapter
->hw
.mac
.type
) {
899 case ixgbe_mac_82598EB
:
900 mask
= (IXGBE_EIMS_RTX_QUEUE
& qmask
);
901 IXGBE_WRITE_REG(&adapter
->hw
, IXGBE_EICS
, mask
);
903 case ixgbe_mac_82599EB
:
906 case ixgbe_mac_X550EM_x
:
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
);
917 void ixgbe_unmap_and_free_tx_resource(struct ixgbe_ring
*ring
,
918 struct ixgbe_tx_buffer
*tx_buffer
)
920 if (tx_buffer
->skb
) {
921 dev_kfree_skb_any(tx_buffer
->skb
);
922 if (dma_unmap_len(tx_buffer
, len
))
923 dma_unmap_single(ring
->dev
,
924 dma_unmap_addr(tx_buffer
, dma
),
925 dma_unmap_len(tx_buffer
, len
),
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
),
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 */
939 static void ixgbe_update_xoff_rx_lfc(struct ixgbe_adapter
*adapter
)
941 struct ixgbe_hw
*hw
= &adapter
->hw
;
942 struct ixgbe_hw_stats
*hwstats
= &adapter
->stats
;
946 if ((hw
->fc
.current_mode
!= ixgbe_fc_full
) &&
947 (hw
->fc
.current_mode
!= ixgbe_fc_rx_pause
))
950 switch (hw
->mac
.type
) {
951 case ixgbe_mac_82598EB
:
952 data
= IXGBE_READ_REG(hw
, IXGBE_LXOFFRXC
);
955 data
= IXGBE_READ_REG(hw
, IXGBE_LXOFFRXCNT
);
957 hwstats
->lxoffrxc
+= data
;
959 /* refill credits (no tx hang) if we received xoff */
963 for (i
= 0; i
< adapter
->num_tx_queues
; i
++)
964 clear_bit(__IXGBE_HANG_CHECK_ARMED
,
965 &adapter
->tx_ring
[i
]->state
);
968 static void ixgbe_update_xoff_received(struct ixgbe_adapter
*adapter
)
970 struct ixgbe_hw
*hw
= &adapter
->hw
;
971 struct ixgbe_hw_stats
*hwstats
= &adapter
->stats
;
975 bool pfc_en
= adapter
->dcb_cfg
.pfc_mode_enable
;
977 if (adapter
->ixgbe_ieee_pfc
)
978 pfc_en
|= !!(adapter
->ixgbe_ieee_pfc
->pfc_en
);
980 if (!(adapter
->flags
& IXGBE_FLAG_DCB_ENABLED
) || !pfc_en
) {
981 ixgbe_update_xoff_rx_lfc(adapter
);
985 /* update stats for each tc, only valid with PFC enabled */
986 for (i
= 0; i
< MAX_TX_PACKET_BUFFERS
; i
++) {
989 switch (hw
->mac
.type
) {
990 case ixgbe_mac_82598EB
:
991 pxoffrxc
= IXGBE_READ_REG(hw
, IXGBE_PXOFFRXC(i
));
994 pxoffrxc
= IXGBE_READ_REG(hw
, IXGBE_PXOFFRXCNT(i
));
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
;
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
];
1006 tc
= tx_ring
->dcb_tc
;
1008 clear_bit(__IXGBE_HANG_CHECK_ARMED
, &tx_ring
->state
);
1012 static u64
ixgbe_get_tx_completed(struct ixgbe_ring
*ring
)
1014 return ring
->stats
.packets
;
1017 static u64
ixgbe_get_tx_pending(struct ixgbe_ring
*ring
)
1019 struct ixgbe_adapter
*adapter
;
1020 struct ixgbe_hw
*hw
;
1023 if (ring
->l2_accel_priv
)
1024 adapter
= ring
->l2_accel_priv
->real_adapter
;
1026 adapter
= netdev_priv(ring
->netdev
);
1029 head
= IXGBE_READ_REG(hw
, IXGBE_TDH(ring
->reg_idx
));
1030 tail
= IXGBE_READ_REG(hw
, IXGBE_TDT(ring
->reg_idx
));
1033 return (head
< tail
) ?
1034 tail
- head
: (tail
+ ring
->count
- head
);
1039 static inline bool ixgbe_check_tx_hang(struct ixgbe_ring
*tx_ring
)
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
);
1045 clear_check_for_tx_hang(tx_ring
);
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.
1059 if (tx_done_old
== tx_done
&& tx_pending
)
1060 /* make sure it is true for two checks in a row */
1061 return test_and_set_bit(__IXGBE_HANG_CHECK_ARMED
,
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
);
1072 * ixgbe_tx_timeout_reset - initiate reset due to Tx timeout
1073 * @adapter: driver private struct
1075 static void ixgbe_tx_timeout_reset(struct ixgbe_adapter
*adapter
)
1078 /* Do the reset outside of interrupt context */
1079 if (!test_bit(__IXGBE_DOWN
, &adapter
->state
)) {
1080 adapter
->flags2
|= IXGBE_FLAG2_RESET_REQUESTED
;
1081 e_warn(drv
, "initiating reset due to tx timeout\n");
1082 ixgbe_service_event_schedule(adapter
);
1087 * ixgbe_clean_tx_irq - Reclaim resources after transmit completes
1088 * @q_vector: structure containing interrupt and ring information
1089 * @tx_ring: tx ring to clean
1091 static bool ixgbe_clean_tx_irq(struct ixgbe_q_vector
*q_vector
,
1092 struct ixgbe_ring
*tx_ring
)
1094 struct ixgbe_adapter
*adapter
= q_vector
->adapter
;
1095 struct ixgbe_tx_buffer
*tx_buffer
;
1096 union ixgbe_adv_tx_desc
*tx_desc
;
1097 unsigned int total_bytes
= 0, total_packets
= 0;
1098 unsigned int budget
= q_vector
->tx
.work_limit
;
1099 unsigned int i
= tx_ring
->next_to_clean
;
1101 if (test_bit(__IXGBE_DOWN
, &adapter
->state
))
1104 tx_buffer
= &tx_ring
->tx_buffer_info
[i
];
1105 tx_desc
= IXGBE_TX_DESC(tx_ring
, i
);
1106 i
-= tx_ring
->count
;
1109 union ixgbe_adv_tx_desc
*eop_desc
= tx_buffer
->next_to_watch
;
1111 /* if next_to_watch is not set then there is no work pending */
1115 /* prevent any other reads prior to eop_desc */
1116 read_barrier_depends();
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
)))
1122 /* clear next_to_watch to prevent false hangs */
1123 tx_buffer
->next_to_watch
= NULL
;
1125 /* update the statistics for this packet */
1126 total_bytes
+= tx_buffer
->bytecount
;
1127 total_packets
+= tx_buffer
->gso_segs
;
1130 dev_consume_skb_any(tx_buffer
->skb
);
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
),
1138 /* clear tx_buffer data */
1139 tx_buffer
->skb
= NULL
;
1140 dma_unmap_len_set(tx_buffer
, len
, 0);
1142 /* unmap remaining buffers */
1143 while (tx_desc
!= eop_desc
) {
1148 i
-= tx_ring
->count
;
1149 tx_buffer
= tx_ring
->tx_buffer_info
;
1150 tx_desc
= IXGBE_TX_DESC(tx_ring
, 0);
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
),
1159 dma_unmap_len_set(tx_buffer
, len
, 0);
1163 /* move us one more past the eop_desc for start of next pkt */
1168 i
-= tx_ring
->count
;
1169 tx_buffer
= tx_ring
->tx_buffer_info
;
1170 tx_desc
= IXGBE_TX_DESC(tx_ring
, 0);
1173 /* issue prefetch for next Tx descriptor */
1176 /* update budget accounting */
1178 } while (likely(budget
));
1180 i
+= tx_ring
->count
;
1181 tx_ring
->next_to_clean
= i
;
1182 u64_stats_update_begin(&tx_ring
->syncp
);
1183 tx_ring
->stats
.bytes
+= total_bytes
;
1184 tx_ring
->stats
.packets
+= total_packets
;
1185 u64_stats_update_end(&tx_ring
->syncp
);
1186 q_vector
->tx
.total_bytes
+= total_bytes
;
1187 q_vector
->tx
.total_packets
+= total_packets
;
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
;
1192 e_err(drv
, "Detected Tx Unit Hang\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"
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
)),
1203 tx_ring
->next_to_use
, i
,
1204 tx_ring
->tx_buffer_info
[i
].time_stamp
, jiffies
);
1206 netif_stop_subqueue(tx_ring
->netdev
, tx_ring
->queue_index
);
1209 "tx hang %d detected on queue %d, resetting adapter\n",
1210 adapter
->tx_timeout_count
+ 1, tx_ring
->queue_index
);
1212 /* schedule immediate reset if we believe we hung */
1213 ixgbe_tx_timeout_reset(adapter
);
1215 /* the adapter is about to reset, no point in enabling stuff */
1219 netdev_tx_completed_queue(txring_txq(tx_ring
),
1220 total_packets
, total_bytes
);
1222 #define TX_WAKE_THRESHOLD (DESC_NEEDED * 2)
1223 if (unlikely(total_packets
&& netif_carrier_ok(tx_ring
->netdev
) &&
1224 (ixgbe_desc_unused(tx_ring
) >= TX_WAKE_THRESHOLD
))) {
1225 /* Make sure that anybody stopping the queue after this
1226 * sees the new next_to_clean.
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
);
1234 ++tx_ring
->tx_stats
.restart_queue
;
1241 #ifdef CONFIG_IXGBE_DCA
1242 static void ixgbe_update_tx_dca(struct ixgbe_adapter
*adapter
,
1243 struct ixgbe_ring
*tx_ring
,
1246 struct ixgbe_hw
*hw
= &adapter
->hw
;
1250 if (adapter
->flags
& IXGBE_FLAG_DCA_ENABLED
)
1251 txctrl
= dca3_get_tag(tx_ring
->dev
, cpu
);
1253 switch (hw
->mac
.type
) {
1254 case ixgbe_mac_82598EB
:
1255 reg_offset
= IXGBE_DCA_TXCTRL(tx_ring
->reg_idx
);
1257 case ixgbe_mac_82599EB
:
1258 case ixgbe_mac_X540
:
1259 reg_offset
= IXGBE_DCA_TXCTRL_82599(tx_ring
->reg_idx
);
1260 txctrl
<<= IXGBE_DCA_TXCTRL_CPUID_SHIFT_82599
;
1263 /* for unknown hardware do not write register */
1268 * We can enable relaxed ordering for reads, but not writes when
1269 * DCA is enabled. This is due to a known issue in some chipsets
1270 * which will cause the DCA tag to be cleared.
1272 txctrl
|= IXGBE_DCA_TXCTRL_DESC_RRO_EN
|
1273 IXGBE_DCA_TXCTRL_DATA_RRO_EN
|
1274 IXGBE_DCA_TXCTRL_DESC_DCA_EN
;
1276 IXGBE_WRITE_REG(hw
, reg_offset
, txctrl
);
1279 static void ixgbe_update_rx_dca(struct ixgbe_adapter
*adapter
,
1280 struct ixgbe_ring
*rx_ring
,
1283 struct ixgbe_hw
*hw
= &adapter
->hw
;
1285 u8 reg_idx
= rx_ring
->reg_idx
;
1287 if (adapter
->flags
& IXGBE_FLAG_DCA_ENABLED
)
1288 rxctrl
= dca3_get_tag(rx_ring
->dev
, cpu
);
1290 switch (hw
->mac
.type
) {
1291 case ixgbe_mac_82599EB
:
1292 case ixgbe_mac_X540
:
1293 rxctrl
<<= IXGBE_DCA_RXCTRL_CPUID_SHIFT_82599
;
1300 * We can enable relaxed ordering for reads, but not writes when
1301 * DCA is enabled. This is due to a known issue in some chipsets
1302 * which will cause the DCA tag to be cleared.
1304 rxctrl
|= IXGBE_DCA_RXCTRL_DESC_RRO_EN
|
1305 IXGBE_DCA_RXCTRL_DATA_DCA_EN
|
1306 IXGBE_DCA_RXCTRL_DESC_DCA_EN
;
1308 IXGBE_WRITE_REG(hw
, IXGBE_DCA_RXCTRL(reg_idx
), rxctrl
);
1311 static void ixgbe_update_dca(struct ixgbe_q_vector
*q_vector
)
1313 struct ixgbe_adapter
*adapter
= q_vector
->adapter
;
1314 struct ixgbe_ring
*ring
;
1315 int cpu
= get_cpu();
1317 if (q_vector
->cpu
== cpu
)
1320 ixgbe_for_each_ring(ring
, q_vector
->tx
)
1321 ixgbe_update_tx_dca(adapter
, ring
, cpu
);
1323 ixgbe_for_each_ring(ring
, q_vector
->rx
)
1324 ixgbe_update_rx_dca(adapter
, ring
, cpu
);
1326 q_vector
->cpu
= cpu
;
1331 static void ixgbe_setup_dca(struct ixgbe_adapter
*adapter
)
1335 /* always use CB2 mode, difference is masked in the CB driver */
1336 if (adapter
->flags
& IXGBE_FLAG_DCA_ENABLED
)
1337 IXGBE_WRITE_REG(&adapter
->hw
, IXGBE_DCA_CTRL
,
1338 IXGBE_DCA_CTRL_DCA_MODE_CB2
);
1340 IXGBE_WRITE_REG(&adapter
->hw
, IXGBE_DCA_CTRL
,
1341 IXGBE_DCA_CTRL_DCA_DISABLE
);
1343 for (i
= 0; i
< adapter
->num_q_vectors
; i
++) {
1344 adapter
->q_vector
[i
]->cpu
= -1;
1345 ixgbe_update_dca(adapter
->q_vector
[i
]);
1349 static int __ixgbe_notify_dca(struct device
*dev
, void *data
)
1351 struct ixgbe_adapter
*adapter
= dev_get_drvdata(dev
);
1352 unsigned long event
= *(unsigned long *)data
;
1354 if (!(adapter
->flags
& IXGBE_FLAG_DCA_CAPABLE
))
1358 case DCA_PROVIDER_ADD
:
1359 /* if we're already enabled, don't do it again */
1360 if (adapter
->flags
& IXGBE_FLAG_DCA_ENABLED
)
1362 if (dca_add_requester(dev
) == 0) {
1363 adapter
->flags
|= IXGBE_FLAG_DCA_ENABLED
;
1364 IXGBE_WRITE_REG(&adapter
->hw
, IXGBE_DCA_CTRL
,
1365 IXGBE_DCA_CTRL_DCA_MODE_CB2
);
1368 /* Fall Through since DCA is disabled. */
1369 case DCA_PROVIDER_REMOVE
:
1370 if (adapter
->flags
& IXGBE_FLAG_DCA_ENABLED
) {
1371 dca_remove_requester(dev
);
1372 adapter
->flags
&= ~IXGBE_FLAG_DCA_ENABLED
;
1373 IXGBE_WRITE_REG(&adapter
->hw
, IXGBE_DCA_CTRL
,
1374 IXGBE_DCA_CTRL_DCA_DISABLE
);
1382 #endif /* CONFIG_IXGBE_DCA */
1384 #define IXGBE_RSS_L4_TYPES_MASK \
1385 ((1ul << IXGBE_RXDADV_RSSTYPE_IPV4_TCP) | \
1386 (1ul << IXGBE_RXDADV_RSSTYPE_IPV4_UDP) | \
1387 (1ul << IXGBE_RXDADV_RSSTYPE_IPV6_TCP) | \
1388 (1ul << IXGBE_RXDADV_RSSTYPE_IPV6_UDP))
1390 static inline void ixgbe_rx_hash(struct ixgbe_ring
*ring
,
1391 union ixgbe_adv_rx_desc
*rx_desc
,
1392 struct sk_buff
*skb
)
1396 if (!(ring
->netdev
->features
& NETIF_F_RXHASH
))
1399 rss_type
= le16_to_cpu(rx_desc
->wb
.lower
.lo_dword
.hs_rss
.pkt_info
) &
1400 IXGBE_RXDADV_RSSTYPE_MASK
;
1405 skb_set_hash(skb
, le32_to_cpu(rx_desc
->wb
.lower
.hi_dword
.rss
),
1406 (IXGBE_RSS_L4_TYPES_MASK
& (1ul << rss_type
)) ?
1407 PKT_HASH_TYPE_L4
: PKT_HASH_TYPE_L3
);
1412 * ixgbe_rx_is_fcoe - check the rx desc for incoming pkt type
1413 * @ring: structure containing ring specific data
1414 * @rx_desc: advanced rx descriptor
1416 * Returns : true if it is FCoE pkt
1418 static inline bool ixgbe_rx_is_fcoe(struct ixgbe_ring
*ring
,
1419 union ixgbe_adv_rx_desc
*rx_desc
)
1421 __le16 pkt_info
= rx_desc
->wb
.lower
.lo_dword
.hs_rss
.pkt_info
;
1423 return test_bit(__IXGBE_RX_FCOE
, &ring
->state
) &&
1424 ((pkt_info
& cpu_to_le16(IXGBE_RXDADV_PKTTYPE_ETQF_MASK
)) ==
1425 (cpu_to_le16(IXGBE_ETQF_FILTER_FCOE
<<
1426 IXGBE_RXDADV_PKTTYPE_ETQF_SHIFT
)));
1429 #endif /* IXGBE_FCOE */
1431 * ixgbe_rx_checksum - indicate in skb if hw indicated a good cksum
1432 * @ring: structure containing ring specific data
1433 * @rx_desc: current Rx descriptor being processed
1434 * @skb: skb currently being received and modified
1436 static inline void ixgbe_rx_checksum(struct ixgbe_ring
*ring
,
1437 union ixgbe_adv_rx_desc
*rx_desc
,
1438 struct sk_buff
*skb
)
1440 __le16 pkt_info
= rx_desc
->wb
.lower
.lo_dword
.hs_rss
.pkt_info
;
1441 __le16 hdr_info
= rx_desc
->wb
.lower
.lo_dword
.hs_rss
.hdr_info
;
1442 bool encap_pkt
= false;
1444 skb_checksum_none_assert(skb
);
1446 /* Rx csum disabled */
1447 if (!(ring
->netdev
->features
& NETIF_F_RXCSUM
))
1450 if ((pkt_info
& cpu_to_le16(IXGBE_RXDADV_PKTTYPE_VXLAN
)) &&
1451 (hdr_info
& cpu_to_le16(IXGBE_RXDADV_PKTTYPE_TUNNEL
>> 16))) {
1453 skb
->encapsulation
= 1;
1456 /* if IP and error */
1457 if (ixgbe_test_staterr(rx_desc
, IXGBE_RXD_STAT_IPCS
) &&
1458 ixgbe_test_staterr(rx_desc
, IXGBE_RXDADV_ERR_IPE
)) {
1459 ring
->rx_stats
.csum_err
++;
1463 if (!ixgbe_test_staterr(rx_desc
, IXGBE_RXD_STAT_L4CS
))
1466 if (ixgbe_test_staterr(rx_desc
, IXGBE_RXDADV_ERR_TCPE
)) {
1468 * 82599 errata, UDP frames with a 0 checksum can be marked as
1471 if ((pkt_info
& cpu_to_le16(IXGBE_RXDADV_PKTTYPE_UDP
)) &&
1472 test_bit(__IXGBE_RX_CSUM_UDP_ZERO_ERR
, &ring
->state
))
1475 ring
->rx_stats
.csum_err
++;
1479 /* It must be a TCP or UDP packet with a valid checksum */
1480 skb
->ip_summed
= CHECKSUM_UNNECESSARY
;
1482 if (!ixgbe_test_staterr(rx_desc
, IXGBE_RXD_STAT_OUTERIPCS
))
1485 if (ixgbe_test_staterr(rx_desc
, IXGBE_RXDADV_ERR_OUTERIPER
)) {
1486 ring
->rx_stats
.csum_err
++;
1489 /* If we checked the outer header let the stack know */
1490 skb
->csum_level
= 1;
1494 static bool ixgbe_alloc_mapped_page(struct ixgbe_ring
*rx_ring
,
1495 struct ixgbe_rx_buffer
*bi
)
1497 struct page
*page
= bi
->page
;
1500 /* since we are recycling buffers we should seldom need to alloc */
1504 /* alloc new page for storage */
1505 page
= dev_alloc_pages(ixgbe_rx_pg_order(rx_ring
));
1506 if (unlikely(!page
)) {
1507 rx_ring
->rx_stats
.alloc_rx_page_failed
++;
1511 /* map page for use */
1512 dma
= dma_map_page(rx_ring
->dev
, page
, 0,
1513 ixgbe_rx_pg_size(rx_ring
), DMA_FROM_DEVICE
);
1516 * if mapping failed free memory back to system since
1517 * there isn't much point in holding memory we can't use
1519 if (dma_mapping_error(rx_ring
->dev
, dma
)) {
1520 __free_pages(page
, ixgbe_rx_pg_order(rx_ring
));
1522 rx_ring
->rx_stats
.alloc_rx_page_failed
++;
1528 bi
->page_offset
= 0;
1534 * ixgbe_alloc_rx_buffers - Replace used receive buffers
1535 * @rx_ring: ring to place buffers on
1536 * @cleaned_count: number of buffers to replace
1538 void ixgbe_alloc_rx_buffers(struct ixgbe_ring
*rx_ring
, u16 cleaned_count
)
1540 union ixgbe_adv_rx_desc
*rx_desc
;
1541 struct ixgbe_rx_buffer
*bi
;
1542 u16 i
= rx_ring
->next_to_use
;
1548 rx_desc
= IXGBE_RX_DESC(rx_ring
, i
);
1549 bi
= &rx_ring
->rx_buffer_info
[i
];
1550 i
-= rx_ring
->count
;
1553 if (!ixgbe_alloc_mapped_page(rx_ring
, bi
))
1557 * Refresh the desc even if buffer_addrs didn't change
1558 * because each write-back erases this info.
1560 rx_desc
->read
.pkt_addr
= cpu_to_le64(bi
->dma
+ bi
->page_offset
);
1566 rx_desc
= IXGBE_RX_DESC(rx_ring
, 0);
1567 bi
= rx_ring
->rx_buffer_info
;
1568 i
-= rx_ring
->count
;
1571 /* clear the status bits for the next_to_use descriptor */
1572 rx_desc
->wb
.upper
.status_error
= 0;
1575 } while (cleaned_count
);
1577 i
+= rx_ring
->count
;
1579 if (rx_ring
->next_to_use
!= i
) {
1580 rx_ring
->next_to_use
= i
;
1582 /* update next to alloc since we have filled the ring */
1583 rx_ring
->next_to_alloc
= i
;
1585 /* Force memory writes to complete before letting h/w
1586 * know there are new descriptors to fetch. (Only
1587 * applicable for weak-ordered memory model archs,
1591 writel(i
, rx_ring
->tail
);
1595 static void ixgbe_set_rsc_gso_size(struct ixgbe_ring
*ring
,
1596 struct sk_buff
*skb
)
1598 u16 hdr_len
= skb_headlen(skb
);
1600 /* set gso_size to avoid messing up TCP MSS */
1601 skb_shinfo(skb
)->gso_size
= DIV_ROUND_UP((skb
->len
- hdr_len
),
1602 IXGBE_CB(skb
)->append_cnt
);
1603 skb_shinfo(skb
)->gso_type
= SKB_GSO_TCPV4
;
1606 static void ixgbe_update_rsc_stats(struct ixgbe_ring
*rx_ring
,
1607 struct sk_buff
*skb
)
1609 /* if append_cnt is 0 then frame is not RSC */
1610 if (!IXGBE_CB(skb
)->append_cnt
)
1613 rx_ring
->rx_stats
.rsc_count
+= IXGBE_CB(skb
)->append_cnt
;
1614 rx_ring
->rx_stats
.rsc_flush
++;
1616 ixgbe_set_rsc_gso_size(rx_ring
, skb
);
1618 /* gso_size is computed using append_cnt so always clear it last */
1619 IXGBE_CB(skb
)->append_cnt
= 0;
1623 * ixgbe_process_skb_fields - Populate skb header fields from Rx descriptor
1624 * @rx_ring: rx descriptor ring packet is being transacted on
1625 * @rx_desc: pointer to the EOP Rx descriptor
1626 * @skb: pointer to current skb being populated
1628 * This function checks the ring, descriptor, and packet information in
1629 * order to populate the hash, checksum, VLAN, timestamp, protocol, and
1630 * other fields within the skb.
1632 static void ixgbe_process_skb_fields(struct ixgbe_ring
*rx_ring
,
1633 union ixgbe_adv_rx_desc
*rx_desc
,
1634 struct sk_buff
*skb
)
1636 struct net_device
*dev
= rx_ring
->netdev
;
1637 u32 flags
= rx_ring
->q_vector
->adapter
->flags
;
1639 ixgbe_update_rsc_stats(rx_ring
, skb
);
1641 ixgbe_rx_hash(rx_ring
, rx_desc
, skb
);
1643 ixgbe_rx_checksum(rx_ring
, rx_desc
, skb
);
1645 if (unlikely(flags
& IXGBE_FLAG_RX_HWTSTAMP_ENABLED
))
1646 ixgbe_ptp_rx_hwtstamp(rx_ring
, rx_desc
, skb
);
1648 if ((dev
->features
& NETIF_F_HW_VLAN_CTAG_RX
) &&
1649 ixgbe_test_staterr(rx_desc
, IXGBE_RXD_STAT_VP
)) {
1650 u16 vid
= le16_to_cpu(rx_desc
->wb
.upper
.vlan
);
1651 __vlan_hwaccel_put_tag(skb
, htons(ETH_P_8021Q
), vid
);
1654 skb_record_rx_queue(skb
, rx_ring
->queue_index
);
1656 skb
->protocol
= eth_type_trans(skb
, dev
);
1659 static void ixgbe_rx_skb(struct ixgbe_q_vector
*q_vector
,
1660 struct sk_buff
*skb
)
1662 skb_mark_napi_id(skb
, &q_vector
->napi
);
1663 if (ixgbe_qv_busy_polling(q_vector
))
1664 netif_receive_skb(skb
);
1666 napi_gro_receive(&q_vector
->napi
, skb
);
1670 * ixgbe_is_non_eop - process handling of non-EOP buffers
1671 * @rx_ring: Rx ring being processed
1672 * @rx_desc: Rx descriptor for current buffer
1673 * @skb: Current socket buffer containing buffer in progress
1675 * This function updates next to clean. If the buffer is an EOP buffer
1676 * this function exits returning false, otherwise it will place the
1677 * sk_buff in the next buffer to be chained and return true indicating
1678 * that this is in fact a non-EOP buffer.
1680 static bool ixgbe_is_non_eop(struct ixgbe_ring
*rx_ring
,
1681 union ixgbe_adv_rx_desc
*rx_desc
,
1682 struct sk_buff
*skb
)
1684 u32 ntc
= rx_ring
->next_to_clean
+ 1;
1686 /* fetch, update, and store next to clean */
1687 ntc
= (ntc
< rx_ring
->count
) ? ntc
: 0;
1688 rx_ring
->next_to_clean
= ntc
;
1690 prefetch(IXGBE_RX_DESC(rx_ring
, ntc
));
1692 /* update RSC append count if present */
1693 if (ring_is_rsc_enabled(rx_ring
)) {
1694 __le32 rsc_enabled
= rx_desc
->wb
.lower
.lo_dword
.data
&
1695 cpu_to_le32(IXGBE_RXDADV_RSCCNT_MASK
);
1697 if (unlikely(rsc_enabled
)) {
1698 u32 rsc_cnt
= le32_to_cpu(rsc_enabled
);
1700 rsc_cnt
>>= IXGBE_RXDADV_RSCCNT_SHIFT
;
1701 IXGBE_CB(skb
)->append_cnt
+= rsc_cnt
- 1;
1703 /* update ntc based on RSC value */
1704 ntc
= le32_to_cpu(rx_desc
->wb
.upper
.status_error
);
1705 ntc
&= IXGBE_RXDADV_NEXTP_MASK
;
1706 ntc
>>= IXGBE_RXDADV_NEXTP_SHIFT
;
1710 /* if we are the last buffer then there is nothing else to do */
1711 if (likely(ixgbe_test_staterr(rx_desc
, IXGBE_RXD_STAT_EOP
)))
1714 /* place skb in next buffer to be received */
1715 rx_ring
->rx_buffer_info
[ntc
].skb
= skb
;
1716 rx_ring
->rx_stats
.non_eop_descs
++;
1722 * ixgbe_pull_tail - ixgbe specific version of skb_pull_tail
1723 * @rx_ring: rx descriptor ring packet is being transacted on
1724 * @skb: pointer to current skb being adjusted
1726 * This function is an ixgbe specific version of __pskb_pull_tail. The
1727 * main difference between this version and the original function is that
1728 * this function can make several assumptions about the state of things
1729 * that allow for significant optimizations versus the standard function.
1730 * As a result we can do things like drop a frag and maintain an accurate
1731 * truesize for the skb.
1733 static void ixgbe_pull_tail(struct ixgbe_ring
*rx_ring
,
1734 struct sk_buff
*skb
)
1736 struct skb_frag_struct
*frag
= &skb_shinfo(skb
)->frags
[0];
1738 unsigned int pull_len
;
1741 * it is valid to use page_address instead of kmap since we are
1742 * working with pages allocated out of the lomem pool per
1743 * alloc_page(GFP_ATOMIC)
1745 va
= skb_frag_address(frag
);
1748 * we need the header to contain the greater of either ETH_HLEN or
1749 * 60 bytes if the skb->len is less than 60 for skb_pad.
1751 pull_len
= eth_get_headlen(va
, IXGBE_RX_HDR_SIZE
);
1753 /* align pull length to size of long to optimize memcpy performance */
1754 skb_copy_to_linear_data(skb
, va
, ALIGN(pull_len
, sizeof(long)));
1756 /* update all of the pointers */
1757 skb_frag_size_sub(frag
, pull_len
);
1758 frag
->page_offset
+= pull_len
;
1759 skb
->data_len
-= pull_len
;
1760 skb
->tail
+= pull_len
;
1764 * ixgbe_dma_sync_frag - perform DMA sync for first frag of SKB
1765 * @rx_ring: rx descriptor ring packet is being transacted on
1766 * @skb: pointer to current skb being updated
1768 * This function provides a basic DMA sync up for the first fragment of an
1769 * skb. The reason for doing this is that the first fragment cannot be
1770 * unmapped until we have reached the end of packet descriptor for a buffer
1773 static void ixgbe_dma_sync_frag(struct ixgbe_ring
*rx_ring
,
1774 struct sk_buff
*skb
)
1776 /* if the page was released unmap it, else just sync our portion */
1777 if (unlikely(IXGBE_CB(skb
)->page_released
)) {
1778 dma_unmap_page(rx_ring
->dev
, IXGBE_CB(skb
)->dma
,
1779 ixgbe_rx_pg_size(rx_ring
), DMA_FROM_DEVICE
);
1780 IXGBE_CB(skb
)->page_released
= false;
1782 struct skb_frag_struct
*frag
= &skb_shinfo(skb
)->frags
[0];
1784 dma_sync_single_range_for_cpu(rx_ring
->dev
,
1787 ixgbe_rx_bufsz(rx_ring
),
1790 IXGBE_CB(skb
)->dma
= 0;
1794 * ixgbe_cleanup_headers - Correct corrupted or empty headers
1795 * @rx_ring: rx descriptor ring packet is being transacted on
1796 * @rx_desc: pointer to the EOP Rx descriptor
1797 * @skb: pointer to current skb being fixed
1799 * Check for corrupted packet headers caused by senders on the local L2
1800 * embedded NIC switch not setting up their Tx Descriptors right. These
1801 * should be very rare.
1803 * Also address the case where we are pulling data in on pages only
1804 * and as such no data is present in the skb header.
1806 * In addition if skb is not at least 60 bytes we need to pad it so that
1807 * it is large enough to qualify as a valid Ethernet frame.
1809 * Returns true if an error was encountered and skb was freed.
1811 static bool ixgbe_cleanup_headers(struct ixgbe_ring
*rx_ring
,
1812 union ixgbe_adv_rx_desc
*rx_desc
,
1813 struct sk_buff
*skb
)
1815 struct net_device
*netdev
= rx_ring
->netdev
;
1817 /* verify that the packet does not have any known errors */
1818 if (unlikely(ixgbe_test_staterr(rx_desc
,
1819 IXGBE_RXDADV_ERR_FRAME_ERR_MASK
) &&
1820 !(netdev
->features
& NETIF_F_RXALL
))) {
1821 dev_kfree_skb_any(skb
);
1825 /* place header in linear portion of buffer */
1826 if (skb_is_nonlinear(skb
))
1827 ixgbe_pull_tail(rx_ring
, skb
);
1830 /* do not attempt to pad FCoE Frames as this will disrupt DDP */
1831 if (ixgbe_rx_is_fcoe(rx_ring
, rx_desc
))
1835 /* if eth_skb_pad returns an error the skb was freed */
1836 if (eth_skb_pad(skb
))
1843 * ixgbe_reuse_rx_page - page flip buffer and store it back on the ring
1844 * @rx_ring: rx descriptor ring to store buffers on
1845 * @old_buff: donor buffer to have page reused
1847 * Synchronizes page for reuse by the adapter
1849 static void ixgbe_reuse_rx_page(struct ixgbe_ring
*rx_ring
,
1850 struct ixgbe_rx_buffer
*old_buff
)
1852 struct ixgbe_rx_buffer
*new_buff
;
1853 u16 nta
= rx_ring
->next_to_alloc
;
1855 new_buff
= &rx_ring
->rx_buffer_info
[nta
];
1857 /* update, and store next to alloc */
1859 rx_ring
->next_to_alloc
= (nta
< rx_ring
->count
) ? nta
: 0;
1861 /* transfer page from old buffer to new buffer */
1862 *new_buff
= *old_buff
;
1864 /* sync the buffer for use by the device */
1865 dma_sync_single_range_for_device(rx_ring
->dev
, new_buff
->dma
,
1866 new_buff
->page_offset
,
1867 ixgbe_rx_bufsz(rx_ring
),
1871 static inline bool ixgbe_page_is_reserved(struct page
*page
)
1873 return (page_to_nid(page
) != numa_mem_id()) || page_is_pfmemalloc(page
);
1877 * ixgbe_add_rx_frag - Add contents of Rx buffer to sk_buff
1878 * @rx_ring: rx descriptor ring to transact packets on
1879 * @rx_buffer: buffer containing page to add
1880 * @rx_desc: descriptor containing length of buffer written by hardware
1881 * @skb: sk_buff to place the data into
1883 * This function will add the data contained in rx_buffer->page to the skb.
1884 * This is done either through a direct copy if the data in the buffer is
1885 * less than the skb header size, otherwise it will just attach the page as
1886 * a frag to the skb.
1888 * The function will then update the page offset if necessary and return
1889 * true if the buffer can be reused by the adapter.
1891 static bool ixgbe_add_rx_frag(struct ixgbe_ring
*rx_ring
,
1892 struct ixgbe_rx_buffer
*rx_buffer
,
1893 union ixgbe_adv_rx_desc
*rx_desc
,
1894 struct sk_buff
*skb
)
1896 struct page
*page
= rx_buffer
->page
;
1897 unsigned int size
= le16_to_cpu(rx_desc
->wb
.upper
.length
);
1898 #if (PAGE_SIZE < 8192)
1899 unsigned int truesize
= ixgbe_rx_bufsz(rx_ring
);
1901 unsigned int truesize
= ALIGN(size
, L1_CACHE_BYTES
);
1902 unsigned int last_offset
= ixgbe_rx_pg_size(rx_ring
) -
1903 ixgbe_rx_bufsz(rx_ring
);
1906 if ((size
<= IXGBE_RX_HDR_SIZE
) && !skb_is_nonlinear(skb
)) {
1907 unsigned char *va
= page_address(page
) + rx_buffer
->page_offset
;
1909 memcpy(__skb_put(skb
, size
), va
, ALIGN(size
, sizeof(long)));
1911 /* page is not reserved, we can reuse buffer as-is */
1912 if (likely(!ixgbe_page_is_reserved(page
)))
1915 /* this page cannot be reused so discard it */
1916 __free_pages(page
, ixgbe_rx_pg_order(rx_ring
));
1920 skb_add_rx_frag(skb
, skb_shinfo(skb
)->nr_frags
, page
,
1921 rx_buffer
->page_offset
, size
, truesize
);
1923 /* avoid re-using remote pages */
1924 if (unlikely(ixgbe_page_is_reserved(page
)))
1927 #if (PAGE_SIZE < 8192)
1928 /* if we are only owner of page we can reuse it */
1929 if (unlikely(page_count(page
) != 1))
1932 /* flip page offset to other buffer */
1933 rx_buffer
->page_offset
^= truesize
;
1935 /* move offset up to the next cache line */
1936 rx_buffer
->page_offset
+= truesize
;
1938 if (rx_buffer
->page_offset
> last_offset
)
1942 /* Even if we own the page, we are not allowed to use atomic_set()
1943 * This would break get_page_unless_zero() users.
1945 atomic_inc(&page
->_count
);
1950 static struct sk_buff
*ixgbe_fetch_rx_buffer(struct ixgbe_ring
*rx_ring
,
1951 union ixgbe_adv_rx_desc
*rx_desc
)
1953 struct ixgbe_rx_buffer
*rx_buffer
;
1954 struct sk_buff
*skb
;
1957 rx_buffer
= &rx_ring
->rx_buffer_info
[rx_ring
->next_to_clean
];
1958 page
= rx_buffer
->page
;
1961 skb
= rx_buffer
->skb
;
1964 void *page_addr
= page_address(page
) +
1965 rx_buffer
->page_offset
;
1967 /* prefetch first cache line of first page */
1968 prefetch(page_addr
);
1969 #if L1_CACHE_BYTES < 128
1970 prefetch(page_addr
+ L1_CACHE_BYTES
);
1973 /* allocate a skb to store the frags */
1974 skb
= napi_alloc_skb(&rx_ring
->q_vector
->napi
,
1976 if (unlikely(!skb
)) {
1977 rx_ring
->rx_stats
.alloc_rx_buff_failed
++;
1982 * we will be copying header into skb->data in
1983 * pskb_may_pull so it is in our interest to prefetch
1984 * it now to avoid a possible cache miss
1986 prefetchw(skb
->data
);
1989 * Delay unmapping of the first packet. It carries the
1990 * header information, HW may still access the header
1991 * after the writeback. Only unmap it when EOP is
1994 if (likely(ixgbe_test_staterr(rx_desc
, IXGBE_RXD_STAT_EOP
)))
1997 IXGBE_CB(skb
)->dma
= rx_buffer
->dma
;
1999 if (ixgbe_test_staterr(rx_desc
, IXGBE_RXD_STAT_EOP
))
2000 ixgbe_dma_sync_frag(rx_ring
, skb
);
2003 /* we are reusing so sync this buffer for CPU use */
2004 dma_sync_single_range_for_cpu(rx_ring
->dev
,
2006 rx_buffer
->page_offset
,
2007 ixgbe_rx_bufsz(rx_ring
),
2010 rx_buffer
->skb
= NULL
;
2013 /* pull page into skb */
2014 if (ixgbe_add_rx_frag(rx_ring
, rx_buffer
, rx_desc
, skb
)) {
2015 /* hand second half of page back to the ring */
2016 ixgbe_reuse_rx_page(rx_ring
, rx_buffer
);
2017 } else if (IXGBE_CB(skb
)->dma
== rx_buffer
->dma
) {
2018 /* the page has been released from the ring */
2019 IXGBE_CB(skb
)->page_released
= true;
2021 /* we are not reusing the buffer so unmap it */
2022 dma_unmap_page(rx_ring
->dev
, rx_buffer
->dma
,
2023 ixgbe_rx_pg_size(rx_ring
),
2027 /* clear contents of buffer_info */
2028 rx_buffer
->page
= NULL
;
2034 * ixgbe_clean_rx_irq - Clean completed descriptors from Rx ring - bounce buf
2035 * @q_vector: structure containing interrupt and ring information
2036 * @rx_ring: rx descriptor ring to transact packets on
2037 * @budget: Total limit on number of packets to process
2039 * This function provides a "bounce buffer" approach to Rx interrupt
2040 * processing. The advantage to this is that on systems that have
2041 * expensive overhead for IOMMU access this provides a means of avoiding
2042 * it by maintaining the mapping of the page to the syste.
2044 * Returns amount of work completed
2046 static int ixgbe_clean_rx_irq(struct ixgbe_q_vector
*q_vector
,
2047 struct ixgbe_ring
*rx_ring
,
2050 unsigned int total_rx_bytes
= 0, total_rx_packets
= 0;
2052 struct ixgbe_adapter
*adapter
= q_vector
->adapter
;
2054 unsigned int mss
= 0;
2055 #endif /* IXGBE_FCOE */
2056 u16 cleaned_count
= ixgbe_desc_unused(rx_ring
);
2058 while (likely(total_rx_packets
< budget
)) {
2059 union ixgbe_adv_rx_desc
*rx_desc
;
2060 struct sk_buff
*skb
;
2062 /* return some buffers to hardware, one at a time is too slow */
2063 if (cleaned_count
>= IXGBE_RX_BUFFER_WRITE
) {
2064 ixgbe_alloc_rx_buffers(rx_ring
, cleaned_count
);
2068 rx_desc
= IXGBE_RX_DESC(rx_ring
, rx_ring
->next_to_clean
);
2070 if (!rx_desc
->wb
.upper
.status_error
)
2073 /* This memory barrier is needed to keep us from reading
2074 * any other fields out of the rx_desc until we know the
2075 * descriptor has been written back
2079 /* retrieve a buffer from the ring */
2080 skb
= ixgbe_fetch_rx_buffer(rx_ring
, rx_desc
);
2082 /* exit if we failed to retrieve a buffer */
2088 /* place incomplete frames back on ring for completion */
2089 if (ixgbe_is_non_eop(rx_ring
, rx_desc
, skb
))
2092 /* verify the packet layout is correct */
2093 if (ixgbe_cleanup_headers(rx_ring
, rx_desc
, skb
))
2096 /* probably a little skewed due to removing CRC */
2097 total_rx_bytes
+= skb
->len
;
2099 /* populate checksum, timestamp, VLAN, and protocol */
2100 ixgbe_process_skb_fields(rx_ring
, rx_desc
, skb
);
2103 /* if ddp, not passing to ULD unless for FCP_RSP or error */
2104 if (ixgbe_rx_is_fcoe(rx_ring
, rx_desc
)) {
2105 ddp_bytes
= ixgbe_fcoe_ddp(adapter
, rx_desc
, skb
);
2106 /* include DDPed FCoE data */
2107 if (ddp_bytes
> 0) {
2109 mss
= rx_ring
->netdev
->mtu
-
2110 sizeof(struct fcoe_hdr
) -
2111 sizeof(struct fc_frame_header
) -
2112 sizeof(struct fcoe_crc_eof
);
2116 total_rx_bytes
+= ddp_bytes
;
2117 total_rx_packets
+= DIV_ROUND_UP(ddp_bytes
,
2121 dev_kfree_skb_any(skb
);
2126 #endif /* IXGBE_FCOE */
2127 ixgbe_rx_skb(q_vector
, skb
);
2129 /* update budget accounting */
2133 u64_stats_update_begin(&rx_ring
->syncp
);
2134 rx_ring
->stats
.packets
+= total_rx_packets
;
2135 rx_ring
->stats
.bytes
+= total_rx_bytes
;
2136 u64_stats_update_end(&rx_ring
->syncp
);
2137 q_vector
->rx
.total_packets
+= total_rx_packets
;
2138 q_vector
->rx
.total_bytes
+= total_rx_bytes
;
2140 return total_rx_packets
;
2143 #ifdef CONFIG_NET_RX_BUSY_POLL
2144 /* must be called with local_bh_disable()d */
2145 static int ixgbe_low_latency_recv(struct napi_struct
*napi
)
2147 struct ixgbe_q_vector
*q_vector
=
2148 container_of(napi
, struct ixgbe_q_vector
, napi
);
2149 struct ixgbe_adapter
*adapter
= q_vector
->adapter
;
2150 struct ixgbe_ring
*ring
;
2153 if (test_bit(__IXGBE_DOWN
, &adapter
->state
))
2154 return LL_FLUSH_FAILED
;
2156 if (!ixgbe_qv_lock_poll(q_vector
))
2157 return LL_FLUSH_BUSY
;
2159 ixgbe_for_each_ring(ring
, q_vector
->rx
) {
2160 found
= ixgbe_clean_rx_irq(q_vector
, ring
, 4);
2161 #ifdef BP_EXTENDED_STATS
2163 ring
->stats
.cleaned
+= found
;
2165 ring
->stats
.misses
++;
2171 ixgbe_qv_unlock_poll(q_vector
);
2175 #endif /* CONFIG_NET_RX_BUSY_POLL */
2178 * ixgbe_configure_msix - Configure MSI-X hardware
2179 * @adapter: board private structure
2181 * ixgbe_configure_msix sets up the hardware to properly generate MSI-X
2184 static void ixgbe_configure_msix(struct ixgbe_adapter
*adapter
)
2186 struct ixgbe_q_vector
*q_vector
;
2190 /* Populate MSIX to EITR Select */
2191 if (adapter
->num_vfs
> 32) {
2192 u32 eitrsel
= (1 << (adapter
->num_vfs
- 32)) - 1;
2193 IXGBE_WRITE_REG(&adapter
->hw
, IXGBE_EITRSEL
, eitrsel
);
2197 * Populate the IVAR table and set the ITR values to the
2198 * corresponding register.
2200 for (v_idx
= 0; v_idx
< adapter
->num_q_vectors
; v_idx
++) {
2201 struct ixgbe_ring
*ring
;
2202 q_vector
= adapter
->q_vector
[v_idx
];
2204 ixgbe_for_each_ring(ring
, q_vector
->rx
)
2205 ixgbe_set_ivar(adapter
, 0, ring
->reg_idx
, v_idx
);
2207 ixgbe_for_each_ring(ring
, q_vector
->tx
)
2208 ixgbe_set_ivar(adapter
, 1, ring
->reg_idx
, v_idx
);
2210 ixgbe_write_eitr(q_vector
);
2213 switch (adapter
->hw
.mac
.type
) {
2214 case ixgbe_mac_82598EB
:
2215 ixgbe_set_ivar(adapter
, -1, IXGBE_IVAR_OTHER_CAUSES_INDEX
,
2218 case ixgbe_mac_82599EB
:
2219 case ixgbe_mac_X540
:
2220 case ixgbe_mac_X550
:
2221 case ixgbe_mac_X550EM_x
:
2222 ixgbe_set_ivar(adapter
, -1, 1, v_idx
);
2227 IXGBE_WRITE_REG(&adapter
->hw
, IXGBE_EITR(v_idx
), 1950);
2229 /* set up to autoclear timer, and the vectors */
2230 mask
= IXGBE_EIMS_ENABLE_MASK
;
2231 mask
&= ~(IXGBE_EIMS_OTHER
|
2232 IXGBE_EIMS_MAILBOX
|
2235 IXGBE_WRITE_REG(&adapter
->hw
, IXGBE_EIAC
, mask
);
2238 enum latency_range
{
2242 latency_invalid
= 255
2246 * ixgbe_update_itr - update the dynamic ITR value based on statistics
2247 * @q_vector: structure containing interrupt and ring information
2248 * @ring_container: structure containing ring performance data
2250 * Stores a new ITR value based on packets and byte
2251 * counts during the last interrupt. The advantage of per interrupt
2252 * computation is faster updates and more accurate ITR for the current
2253 * traffic pattern. Constants in this function were computed
2254 * based on theoretical maximum wire speed and thresholds were set based
2255 * on testing data as well as attempting to minimize response time
2256 * while increasing bulk throughput.
2257 * this functionality is controlled by the InterruptThrottleRate module
2258 * parameter (see ixgbe_param.c)
2260 static void ixgbe_update_itr(struct ixgbe_q_vector
*q_vector
,
2261 struct ixgbe_ring_container
*ring_container
)
2263 int bytes
= ring_container
->total_bytes
;
2264 int packets
= ring_container
->total_packets
;
2267 u8 itr_setting
= ring_container
->itr
;
2272 /* simple throttlerate management
2273 * 0-10MB/s lowest (100000 ints/s)
2274 * 10-20MB/s low (20000 ints/s)
2275 * 20-1249MB/s bulk (12000 ints/s)
2277 /* what was last interrupt timeslice? */
2278 timepassed_us
= q_vector
->itr
>> 2;
2279 if (timepassed_us
== 0)
2282 bytes_perint
= bytes
/ timepassed_us
; /* bytes/usec */
2284 switch (itr_setting
) {
2285 case lowest_latency
:
2286 if (bytes_perint
> 10)
2287 itr_setting
= low_latency
;
2290 if (bytes_perint
> 20)
2291 itr_setting
= bulk_latency
;
2292 else if (bytes_perint
<= 10)
2293 itr_setting
= lowest_latency
;
2296 if (bytes_perint
<= 20)
2297 itr_setting
= low_latency
;
2301 /* clear work counters since we have the values we need */
2302 ring_container
->total_bytes
= 0;
2303 ring_container
->total_packets
= 0;
2305 /* write updated itr to ring container */
2306 ring_container
->itr
= itr_setting
;
2310 * ixgbe_write_eitr - write EITR register in hardware specific way
2311 * @q_vector: structure containing interrupt and ring information
2313 * This function is made to be called by ethtool and by the driver
2314 * when it needs to update EITR registers at runtime. Hardware
2315 * specific quirks/differences are taken care of here.
2317 void ixgbe_write_eitr(struct ixgbe_q_vector
*q_vector
)
2319 struct ixgbe_adapter
*adapter
= q_vector
->adapter
;
2320 struct ixgbe_hw
*hw
= &adapter
->hw
;
2321 int v_idx
= q_vector
->v_idx
;
2322 u32 itr_reg
= q_vector
->itr
& IXGBE_MAX_EITR
;
2324 switch (adapter
->hw
.mac
.type
) {
2325 case ixgbe_mac_82598EB
:
2326 /* must write high and low 16 bits to reset counter */
2327 itr_reg
|= (itr_reg
<< 16);
2329 case ixgbe_mac_82599EB
:
2330 case ixgbe_mac_X540
:
2331 case ixgbe_mac_X550
:
2332 case ixgbe_mac_X550EM_x
:
2334 * set the WDIS bit to not clear the timer bits and cause an
2335 * immediate assertion of the interrupt
2337 itr_reg
|= IXGBE_EITR_CNT_WDIS
;
2342 IXGBE_WRITE_REG(hw
, IXGBE_EITR(v_idx
), itr_reg
);
2345 static void ixgbe_set_itr(struct ixgbe_q_vector
*q_vector
)
2347 u32 new_itr
= q_vector
->itr
;
2350 ixgbe_update_itr(q_vector
, &q_vector
->tx
);
2351 ixgbe_update_itr(q_vector
, &q_vector
->rx
);
2353 current_itr
= max(q_vector
->rx
.itr
, q_vector
->tx
.itr
);
2355 switch (current_itr
) {
2356 /* counts and packets in update_itr are dependent on these numbers */
2357 case lowest_latency
:
2358 new_itr
= IXGBE_100K_ITR
;
2361 new_itr
= IXGBE_20K_ITR
;
2364 new_itr
= IXGBE_12K_ITR
;
2370 if (new_itr
!= q_vector
->itr
) {
2371 /* do an exponential smoothing */
2372 new_itr
= (10 * new_itr
* q_vector
->itr
) /
2373 ((9 * new_itr
) + q_vector
->itr
);
2375 /* save the algorithm value here */
2376 q_vector
->itr
= new_itr
;
2378 ixgbe_write_eitr(q_vector
);
2383 * ixgbe_check_overtemp_subtask - check for over temperature
2384 * @adapter: pointer to adapter
2386 static void ixgbe_check_overtemp_subtask(struct ixgbe_adapter
*adapter
)
2388 struct ixgbe_hw
*hw
= &adapter
->hw
;
2389 u32 eicr
= adapter
->interrupt_event
;
2391 if (test_bit(__IXGBE_DOWN
, &adapter
->state
))
2394 if (!(adapter
->flags2
& IXGBE_FLAG2_TEMP_SENSOR_CAPABLE
) &&
2395 !(adapter
->flags2
& IXGBE_FLAG2_TEMP_SENSOR_EVENT
))
2398 adapter
->flags2
&= ~IXGBE_FLAG2_TEMP_SENSOR_EVENT
;
2400 switch (hw
->device_id
) {
2401 case IXGBE_DEV_ID_82599_T3_LOM
:
2403 * Since the warning interrupt is for both ports
2404 * we don't have to check if:
2405 * - This interrupt wasn't for our port.
2406 * - We may have missed the interrupt so always have to
2407 * check if we got a LSC
2409 if (!(eicr
& IXGBE_EICR_GPI_SDP0_8259X
) &&
2410 !(eicr
& IXGBE_EICR_LSC
))
2413 if (!(eicr
& IXGBE_EICR_LSC
) && hw
->mac
.ops
.check_link
) {
2415 bool link_up
= false;
2417 hw
->mac
.ops
.check_link(hw
, &speed
, &link_up
, false);
2423 /* Check if this is not due to overtemp */
2424 if (hw
->phy
.ops
.check_overtemp(hw
) != IXGBE_ERR_OVERTEMP
)
2429 if (adapter
->hw
.mac
.type
>= ixgbe_mac_X540
)
2431 if (!(eicr
& IXGBE_EICR_GPI_SDP0(hw
)))
2435 e_crit(drv
, "%s\n", ixgbe_overheat_msg
);
2437 adapter
->interrupt_event
= 0;
2440 static void ixgbe_check_fan_failure(struct ixgbe_adapter
*adapter
, u32 eicr
)
2442 struct ixgbe_hw
*hw
= &adapter
->hw
;
2444 if ((adapter
->flags
& IXGBE_FLAG_FAN_FAIL_CAPABLE
) &&
2445 (eicr
& IXGBE_EICR_GPI_SDP1(hw
))) {
2446 e_crit(probe
, "Fan has stopped, replace the adapter\n");
2447 /* write to clear the interrupt */
2448 IXGBE_WRITE_REG(hw
, IXGBE_EICR
, IXGBE_EICR_GPI_SDP1(hw
));
2452 static void ixgbe_check_overtemp_event(struct ixgbe_adapter
*adapter
, u32 eicr
)
2454 struct ixgbe_hw
*hw
= &adapter
->hw
;
2456 if (!(adapter
->flags2
& IXGBE_FLAG2_TEMP_SENSOR_CAPABLE
))
2459 switch (adapter
->hw
.mac
.type
) {
2460 case ixgbe_mac_82599EB
:
2462 * Need to check link state so complete overtemp check
2465 if (((eicr
& IXGBE_EICR_GPI_SDP0(hw
)) ||
2466 (eicr
& IXGBE_EICR_LSC
)) &&
2467 (!test_bit(__IXGBE_DOWN
, &adapter
->state
))) {
2468 adapter
->interrupt_event
= eicr
;
2469 adapter
->flags2
|= IXGBE_FLAG2_TEMP_SENSOR_EVENT
;
2470 ixgbe_service_event_schedule(adapter
);
2474 case ixgbe_mac_X540
:
2475 if (!(eicr
& IXGBE_EICR_TS
))
2482 e_crit(drv
, "%s\n", ixgbe_overheat_msg
);
2485 static inline bool ixgbe_is_sfp(struct ixgbe_hw
*hw
)
2487 switch (hw
->mac
.type
) {
2488 case ixgbe_mac_82598EB
:
2489 if (hw
->phy
.type
== ixgbe_phy_nl
)
2492 case ixgbe_mac_82599EB
:
2493 case ixgbe_mac_X550EM_x
:
2494 switch (hw
->mac
.ops
.get_media_type(hw
)) {
2495 case ixgbe_media_type_fiber
:
2496 case ixgbe_media_type_fiber_qsfp
:
2506 static void ixgbe_check_sfp_event(struct ixgbe_adapter
*adapter
, u32 eicr
)
2508 struct ixgbe_hw
*hw
= &adapter
->hw
;
2509 u32 eicr_mask
= IXGBE_EICR_GPI_SDP2(hw
);
2511 if (!ixgbe_is_sfp(hw
))
2514 /* Later MAC's use different SDP */
2515 if (hw
->mac
.type
>= ixgbe_mac_X540
)
2516 eicr_mask
= IXGBE_EICR_GPI_SDP0_X540
;
2518 if (eicr
& eicr_mask
) {
2519 /* Clear the interrupt */
2520 IXGBE_WRITE_REG(hw
, IXGBE_EICR
, eicr_mask
);
2521 if (!test_bit(__IXGBE_DOWN
, &adapter
->state
)) {
2522 adapter
->flags2
|= IXGBE_FLAG2_SFP_NEEDS_RESET
;
2523 adapter
->sfp_poll_time
= 0;
2524 ixgbe_service_event_schedule(adapter
);
2528 if (adapter
->hw
.mac
.type
== ixgbe_mac_82599EB
&&
2529 (eicr
& IXGBE_EICR_GPI_SDP1(hw
))) {
2530 /* Clear the interrupt */
2531 IXGBE_WRITE_REG(hw
, IXGBE_EICR
, IXGBE_EICR_GPI_SDP1(hw
));
2532 if (!test_bit(__IXGBE_DOWN
, &adapter
->state
)) {
2533 adapter
->flags
|= IXGBE_FLAG_NEED_LINK_CONFIG
;
2534 ixgbe_service_event_schedule(adapter
);
2539 static void ixgbe_check_lsc(struct ixgbe_adapter
*adapter
)
2541 struct ixgbe_hw
*hw
= &adapter
->hw
;
2544 adapter
->flags
|= IXGBE_FLAG_NEED_LINK_UPDATE
;
2545 adapter
->link_check_timeout
= jiffies
;
2546 if (!test_bit(__IXGBE_DOWN
, &adapter
->state
)) {
2547 IXGBE_WRITE_REG(hw
, IXGBE_EIMC
, IXGBE_EIMC_LSC
);
2548 IXGBE_WRITE_FLUSH(hw
);
2549 ixgbe_service_event_schedule(adapter
);
2553 static inline void ixgbe_irq_enable_queues(struct ixgbe_adapter
*adapter
,
2557 struct ixgbe_hw
*hw
= &adapter
->hw
;
2559 switch (hw
->mac
.type
) {
2560 case ixgbe_mac_82598EB
:
2561 mask
= (IXGBE_EIMS_RTX_QUEUE
& qmask
);
2562 IXGBE_WRITE_REG(hw
, IXGBE_EIMS
, mask
);
2564 case ixgbe_mac_82599EB
:
2565 case ixgbe_mac_X540
:
2566 case ixgbe_mac_X550
:
2567 case ixgbe_mac_X550EM_x
:
2568 mask
= (qmask
& 0xFFFFFFFF);
2570 IXGBE_WRITE_REG(hw
, IXGBE_EIMS_EX(0), mask
);
2571 mask
= (qmask
>> 32);
2573 IXGBE_WRITE_REG(hw
, IXGBE_EIMS_EX(1), mask
);
2578 /* skip the flush */
2581 static inline void ixgbe_irq_disable_queues(struct ixgbe_adapter
*adapter
,
2585 struct ixgbe_hw
*hw
= &adapter
->hw
;
2587 switch (hw
->mac
.type
) {
2588 case ixgbe_mac_82598EB
:
2589 mask
= (IXGBE_EIMS_RTX_QUEUE
& qmask
);
2590 IXGBE_WRITE_REG(hw
, IXGBE_EIMC
, mask
);
2592 case ixgbe_mac_82599EB
:
2593 case ixgbe_mac_X540
:
2594 case ixgbe_mac_X550
:
2595 case ixgbe_mac_X550EM_x
:
2596 mask
= (qmask
& 0xFFFFFFFF);
2598 IXGBE_WRITE_REG(hw
, IXGBE_EIMC_EX(0), mask
);
2599 mask
= (qmask
>> 32);
2601 IXGBE_WRITE_REG(hw
, IXGBE_EIMC_EX(1), mask
);
2606 /* skip the flush */
2610 * ixgbe_irq_enable - Enable default interrupt generation settings
2611 * @adapter: board private structure
2613 static inline void ixgbe_irq_enable(struct ixgbe_adapter
*adapter
, bool queues
,
2616 struct ixgbe_hw
*hw
= &adapter
->hw
;
2617 u32 mask
= (IXGBE_EIMS_ENABLE_MASK
& ~IXGBE_EIMS_RTX_QUEUE
);
2619 /* don't reenable LSC while waiting for link */
2620 if (adapter
->flags
& IXGBE_FLAG_NEED_LINK_UPDATE
)
2621 mask
&= ~IXGBE_EIMS_LSC
;
2623 if (adapter
->flags2
& IXGBE_FLAG2_TEMP_SENSOR_CAPABLE
)
2624 switch (adapter
->hw
.mac
.type
) {
2625 case ixgbe_mac_82599EB
:
2626 mask
|= IXGBE_EIMS_GPI_SDP0(hw
);
2628 case ixgbe_mac_X540
:
2629 case ixgbe_mac_X550
:
2630 case ixgbe_mac_X550EM_x
:
2631 mask
|= IXGBE_EIMS_TS
;
2636 if (adapter
->flags
& IXGBE_FLAG_FAN_FAIL_CAPABLE
)
2637 mask
|= IXGBE_EIMS_GPI_SDP1(hw
);
2638 switch (adapter
->hw
.mac
.type
) {
2639 case ixgbe_mac_82599EB
:
2640 mask
|= IXGBE_EIMS_GPI_SDP1(hw
);
2641 mask
|= IXGBE_EIMS_GPI_SDP2(hw
);
2643 case ixgbe_mac_X540
:
2644 case ixgbe_mac_X550
:
2645 case ixgbe_mac_X550EM_x
:
2646 if (adapter
->hw
.device_id
== IXGBE_DEV_ID_X550EM_X_SFP
)
2647 mask
|= IXGBE_EIMS_GPI_SDP0(&adapter
->hw
);
2648 if (adapter
->hw
.phy
.type
== ixgbe_phy_x550em_ext_t
)
2649 mask
|= IXGBE_EICR_GPI_SDP0_X540
;
2650 mask
|= IXGBE_EIMS_ECC
;
2651 mask
|= IXGBE_EIMS_MAILBOX
;
2657 if ((adapter
->flags
& IXGBE_FLAG_FDIR_HASH_CAPABLE
) &&
2658 !(adapter
->flags2
& IXGBE_FLAG2_FDIR_REQUIRES_REINIT
))
2659 mask
|= IXGBE_EIMS_FLOW_DIR
;
2661 IXGBE_WRITE_REG(&adapter
->hw
, IXGBE_EIMS
, mask
);
2663 ixgbe_irq_enable_queues(adapter
, ~0);
2665 IXGBE_WRITE_FLUSH(&adapter
->hw
);
2668 static irqreturn_t
ixgbe_msix_other(int irq
, void *data
)
2670 struct ixgbe_adapter
*adapter
= data
;
2671 struct ixgbe_hw
*hw
= &adapter
->hw
;
2675 * Workaround for Silicon errata. Use clear-by-write instead
2676 * of clear-by-read. Reading with EICS will return the
2677 * interrupt causes without clearing, which later be done
2678 * with the write to EICR.
2680 eicr
= IXGBE_READ_REG(hw
, IXGBE_EICS
);
2682 /* The lower 16bits of the EICR register are for the queue interrupts
2683 * which should be masked here in order to not accidentally clear them if
2684 * the bits are high when ixgbe_msix_other is called. There is a race
2685 * condition otherwise which results in possible performance loss
2686 * especially if the ixgbe_msix_other interrupt is triggering
2687 * consistently (as it would when PPS is turned on for the X540 device)
2691 IXGBE_WRITE_REG(hw
, IXGBE_EICR
, eicr
);
2693 if (eicr
& IXGBE_EICR_LSC
)
2694 ixgbe_check_lsc(adapter
);
2696 if (eicr
& IXGBE_EICR_MAILBOX
)
2697 ixgbe_msg_task(adapter
);
2699 switch (hw
->mac
.type
) {
2700 case ixgbe_mac_82599EB
:
2701 case ixgbe_mac_X540
:
2702 case ixgbe_mac_X550
:
2703 case ixgbe_mac_X550EM_x
:
2704 if (hw
->phy
.type
== ixgbe_phy_x550em_ext_t
&&
2705 (eicr
& IXGBE_EICR_GPI_SDP0_X540
)) {
2706 adapter
->flags2
|= IXGBE_FLAG2_PHY_INTERRUPT
;
2707 ixgbe_service_event_schedule(adapter
);
2708 IXGBE_WRITE_REG(hw
, IXGBE_EICR
,
2709 IXGBE_EICR_GPI_SDP0_X540
);
2711 if (eicr
& IXGBE_EICR_ECC
) {
2712 e_info(link
, "Received ECC Err, initiating reset\n");
2713 adapter
->flags2
|= IXGBE_FLAG2_RESET_REQUESTED
;
2714 ixgbe_service_event_schedule(adapter
);
2715 IXGBE_WRITE_REG(hw
, IXGBE_EICR
, IXGBE_EICR_ECC
);
2717 /* Handle Flow Director Full threshold interrupt */
2718 if (eicr
& IXGBE_EICR_FLOW_DIR
) {
2719 int reinit_count
= 0;
2721 for (i
= 0; i
< adapter
->num_tx_queues
; i
++) {
2722 struct ixgbe_ring
*ring
= adapter
->tx_ring
[i
];
2723 if (test_and_clear_bit(__IXGBE_TX_FDIR_INIT_DONE
,
2728 /* no more flow director interrupts until after init */
2729 IXGBE_WRITE_REG(hw
, IXGBE_EIMC
, IXGBE_EIMC_FLOW_DIR
);
2730 adapter
->flags2
|= IXGBE_FLAG2_FDIR_REQUIRES_REINIT
;
2731 ixgbe_service_event_schedule(adapter
);
2734 ixgbe_check_sfp_event(adapter
, eicr
);
2735 ixgbe_check_overtemp_event(adapter
, eicr
);
2741 ixgbe_check_fan_failure(adapter
, eicr
);
2743 if (unlikely(eicr
& IXGBE_EICR_TIMESYNC
))
2744 ixgbe_ptp_check_pps_event(adapter
);
2746 /* re-enable the original interrupt state, no lsc, no queues */
2747 if (!test_bit(__IXGBE_DOWN
, &adapter
->state
))
2748 ixgbe_irq_enable(adapter
, false, false);
2753 static irqreturn_t
ixgbe_msix_clean_rings(int irq
, void *data
)
2755 struct ixgbe_q_vector
*q_vector
= data
;
2757 /* EIAM disabled interrupts (on this vector) for us */
2759 if (q_vector
->rx
.ring
|| q_vector
->tx
.ring
)
2760 napi_schedule_irqoff(&q_vector
->napi
);
2766 * ixgbe_poll - NAPI Rx polling callback
2767 * @napi: structure for representing this polling device
2768 * @budget: how many packets driver is allowed to clean
2770 * This function is used for legacy and MSI, NAPI mode
2772 int ixgbe_poll(struct napi_struct
*napi
, int budget
)
2774 struct ixgbe_q_vector
*q_vector
=
2775 container_of(napi
, struct ixgbe_q_vector
, napi
);
2776 struct ixgbe_adapter
*adapter
= q_vector
->adapter
;
2777 struct ixgbe_ring
*ring
;
2778 int per_ring_budget
, work_done
= 0;
2779 bool clean_complete
= true;
2781 #ifdef CONFIG_IXGBE_DCA
2782 if (adapter
->flags
& IXGBE_FLAG_DCA_ENABLED
)
2783 ixgbe_update_dca(q_vector
);
2786 ixgbe_for_each_ring(ring
, q_vector
->tx
)
2787 clean_complete
&= !!ixgbe_clean_tx_irq(q_vector
, ring
);
2789 /* Exit if we are called by netpoll or busy polling is active */
2790 if ((budget
<= 0) || !ixgbe_qv_lock_napi(q_vector
))
2793 /* attempt to distribute budget to each queue fairly, but don't allow
2794 * the budget to go below 1 because we'll exit polling */
2795 if (q_vector
->rx
.count
> 1)
2796 per_ring_budget
= max(budget
/q_vector
->rx
.count
, 1);
2798 per_ring_budget
= budget
;
2800 ixgbe_for_each_ring(ring
, q_vector
->rx
) {
2801 int cleaned
= ixgbe_clean_rx_irq(q_vector
, ring
,
2804 work_done
+= cleaned
;
2805 clean_complete
&= (cleaned
< per_ring_budget
);
2808 ixgbe_qv_unlock_napi(q_vector
);
2809 /* If all work not completed, return budget and keep polling */
2810 if (!clean_complete
)
2813 /* all work done, exit the polling mode */
2814 napi_complete_done(napi
, work_done
);
2815 if (adapter
->rx_itr_setting
& 1)
2816 ixgbe_set_itr(q_vector
);
2817 if (!test_bit(__IXGBE_DOWN
, &adapter
->state
))
2818 ixgbe_irq_enable_queues(adapter
, ((u64
)1 << q_vector
->v_idx
));
2824 * ixgbe_request_msix_irqs - Initialize MSI-X interrupts
2825 * @adapter: board private structure
2827 * ixgbe_request_msix_irqs allocates MSI-X vectors and requests
2828 * interrupts from the kernel.
2830 static int ixgbe_request_msix_irqs(struct ixgbe_adapter
*adapter
)
2832 struct net_device
*netdev
= adapter
->netdev
;
2836 for (vector
= 0; vector
< adapter
->num_q_vectors
; vector
++) {
2837 struct ixgbe_q_vector
*q_vector
= adapter
->q_vector
[vector
];
2838 struct msix_entry
*entry
= &adapter
->msix_entries
[vector
];
2840 if (q_vector
->tx
.ring
&& q_vector
->rx
.ring
) {
2841 snprintf(q_vector
->name
, sizeof(q_vector
->name
) - 1,
2842 "%s-%s-%d", netdev
->name
, "TxRx", ri
++);
2844 } else if (q_vector
->rx
.ring
) {
2845 snprintf(q_vector
->name
, sizeof(q_vector
->name
) - 1,
2846 "%s-%s-%d", netdev
->name
, "rx", ri
++);
2847 } else if (q_vector
->tx
.ring
) {
2848 snprintf(q_vector
->name
, sizeof(q_vector
->name
) - 1,
2849 "%s-%s-%d", netdev
->name
, "tx", ti
++);
2851 /* skip this unused q_vector */
2854 err
= request_irq(entry
->vector
, &ixgbe_msix_clean_rings
, 0,
2855 q_vector
->name
, q_vector
);
2857 e_err(probe
, "request_irq failed for MSIX interrupt "
2858 "Error: %d\n", err
);
2859 goto free_queue_irqs
;
2861 /* If Flow Director is enabled, set interrupt affinity */
2862 if (adapter
->flags
& IXGBE_FLAG_FDIR_HASH_CAPABLE
) {
2863 /* assign the mask for this irq */
2864 irq_set_affinity_hint(entry
->vector
,
2865 &q_vector
->affinity_mask
);
2869 err
= request_irq(adapter
->msix_entries
[vector
].vector
,
2870 ixgbe_msix_other
, 0, netdev
->name
, adapter
);
2872 e_err(probe
, "request_irq for msix_other failed: %d\n", err
);
2873 goto free_queue_irqs
;
2881 irq_set_affinity_hint(adapter
->msix_entries
[vector
].vector
,
2883 free_irq(adapter
->msix_entries
[vector
].vector
,
2884 adapter
->q_vector
[vector
]);
2886 adapter
->flags
&= ~IXGBE_FLAG_MSIX_ENABLED
;
2887 pci_disable_msix(adapter
->pdev
);
2888 kfree(adapter
->msix_entries
);
2889 adapter
->msix_entries
= NULL
;
2894 * ixgbe_intr - legacy mode Interrupt Handler
2895 * @irq: interrupt number
2896 * @data: pointer to a network interface device structure
2898 static irqreturn_t
ixgbe_intr(int irq
, void *data
)
2900 struct ixgbe_adapter
*adapter
= data
;
2901 struct ixgbe_hw
*hw
= &adapter
->hw
;
2902 struct ixgbe_q_vector
*q_vector
= adapter
->q_vector
[0];
2906 * Workaround for silicon errata #26 on 82598. Mask the interrupt
2907 * before the read of EICR.
2909 IXGBE_WRITE_REG(hw
, IXGBE_EIMC
, IXGBE_IRQ_CLEAR_MASK
);
2911 /* for NAPI, using EIAM to auto-mask tx/rx interrupt bits on read
2912 * therefore no explicit interrupt disable is necessary */
2913 eicr
= IXGBE_READ_REG(hw
, IXGBE_EICR
);
2916 * shared interrupt alert!
2917 * make sure interrupts are enabled because the read will
2918 * have disabled interrupts due to EIAM
2919 * finish the workaround of silicon errata on 82598. Unmask
2920 * the interrupt that we masked before the EICR read.
2922 if (!test_bit(__IXGBE_DOWN
, &adapter
->state
))
2923 ixgbe_irq_enable(adapter
, true, true);
2924 return IRQ_NONE
; /* Not our interrupt */
2927 if (eicr
& IXGBE_EICR_LSC
)
2928 ixgbe_check_lsc(adapter
);
2930 switch (hw
->mac
.type
) {
2931 case ixgbe_mac_82599EB
:
2932 ixgbe_check_sfp_event(adapter
, eicr
);
2934 case ixgbe_mac_X540
:
2935 case ixgbe_mac_X550
:
2936 case ixgbe_mac_X550EM_x
:
2937 if (eicr
& IXGBE_EICR_ECC
) {
2938 e_info(link
, "Received ECC Err, initiating reset\n");
2939 adapter
->flags2
|= IXGBE_FLAG2_RESET_REQUESTED
;
2940 ixgbe_service_event_schedule(adapter
);
2941 IXGBE_WRITE_REG(hw
, IXGBE_EICR
, IXGBE_EICR_ECC
);
2943 ixgbe_check_overtemp_event(adapter
, eicr
);
2949 ixgbe_check_fan_failure(adapter
, eicr
);
2950 if (unlikely(eicr
& IXGBE_EICR_TIMESYNC
))
2951 ixgbe_ptp_check_pps_event(adapter
);
2953 /* would disable interrupts here but EIAM disabled it */
2954 napi_schedule_irqoff(&q_vector
->napi
);
2957 * re-enable link(maybe) and non-queue interrupts, no flush.
2958 * ixgbe_poll will re-enable the queue interrupts
2960 if (!test_bit(__IXGBE_DOWN
, &adapter
->state
))
2961 ixgbe_irq_enable(adapter
, false, false);
2967 * ixgbe_request_irq - initialize interrupts
2968 * @adapter: board private structure
2970 * Attempts to configure interrupts using the best available
2971 * capabilities of the hardware and kernel.
2973 static int ixgbe_request_irq(struct ixgbe_adapter
*adapter
)
2975 struct net_device
*netdev
= adapter
->netdev
;
2978 if (adapter
->flags
& IXGBE_FLAG_MSIX_ENABLED
)
2979 err
= ixgbe_request_msix_irqs(adapter
);
2980 else if (adapter
->flags
& IXGBE_FLAG_MSI_ENABLED
)
2981 err
= request_irq(adapter
->pdev
->irq
, ixgbe_intr
, 0,
2982 netdev
->name
, adapter
);
2984 err
= request_irq(adapter
->pdev
->irq
, ixgbe_intr
, IRQF_SHARED
,
2985 netdev
->name
, adapter
);
2988 e_err(probe
, "request_irq failed, Error %d\n", err
);
2993 static void ixgbe_free_irq(struct ixgbe_adapter
*adapter
)
2997 if (!(adapter
->flags
& IXGBE_FLAG_MSIX_ENABLED
)) {
2998 free_irq(adapter
->pdev
->irq
, adapter
);
3002 for (vector
= 0; vector
< adapter
->num_q_vectors
; vector
++) {
3003 struct ixgbe_q_vector
*q_vector
= adapter
->q_vector
[vector
];
3004 struct msix_entry
*entry
= &adapter
->msix_entries
[vector
];
3006 /* free only the irqs that were actually requested */
3007 if (!q_vector
->rx
.ring
&& !q_vector
->tx
.ring
)
3010 /* clear the affinity_mask in the IRQ descriptor */
3011 irq_set_affinity_hint(entry
->vector
, NULL
);
3013 free_irq(entry
->vector
, q_vector
);
3016 free_irq(adapter
->msix_entries
[vector
++].vector
, adapter
);
3020 * ixgbe_irq_disable - Mask off interrupt generation on the NIC
3021 * @adapter: board private structure
3023 static inline void ixgbe_irq_disable(struct ixgbe_adapter
*adapter
)
3025 switch (adapter
->hw
.mac
.type
) {
3026 case ixgbe_mac_82598EB
:
3027 IXGBE_WRITE_REG(&adapter
->hw
, IXGBE_EIMC
, ~0);
3029 case ixgbe_mac_82599EB
:
3030 case ixgbe_mac_X540
:
3031 case ixgbe_mac_X550
:
3032 case ixgbe_mac_X550EM_x
:
3033 IXGBE_WRITE_REG(&adapter
->hw
, IXGBE_EIMC
, 0xFFFF0000);
3034 IXGBE_WRITE_REG(&adapter
->hw
, IXGBE_EIMC_EX(0), ~0);
3035 IXGBE_WRITE_REG(&adapter
->hw
, IXGBE_EIMC_EX(1), ~0);
3040 IXGBE_WRITE_FLUSH(&adapter
->hw
);
3041 if (adapter
->flags
& IXGBE_FLAG_MSIX_ENABLED
) {
3044 for (vector
= 0; vector
< adapter
->num_q_vectors
; vector
++)
3045 synchronize_irq(adapter
->msix_entries
[vector
].vector
);
3047 synchronize_irq(adapter
->msix_entries
[vector
++].vector
);
3049 synchronize_irq(adapter
->pdev
->irq
);
3054 * ixgbe_configure_msi_and_legacy - Initialize PIN (INTA...) and MSI interrupts
3057 static void ixgbe_configure_msi_and_legacy(struct ixgbe_adapter
*adapter
)
3059 struct ixgbe_q_vector
*q_vector
= adapter
->q_vector
[0];
3061 ixgbe_write_eitr(q_vector
);
3063 ixgbe_set_ivar(adapter
, 0, 0, 0);
3064 ixgbe_set_ivar(adapter
, 1, 0, 0);
3066 e_info(hw
, "Legacy interrupt IVAR setup done\n");
3070 * ixgbe_configure_tx_ring - Configure 8259x Tx ring after Reset
3071 * @adapter: board private structure
3072 * @ring: structure containing ring specific data
3074 * Configure the Tx descriptor ring after a reset.
3076 void ixgbe_configure_tx_ring(struct ixgbe_adapter
*adapter
,
3077 struct ixgbe_ring
*ring
)
3079 struct ixgbe_hw
*hw
= &adapter
->hw
;
3080 u64 tdba
= ring
->dma
;
3082 u32 txdctl
= IXGBE_TXDCTL_ENABLE
;
3083 u8 reg_idx
= ring
->reg_idx
;
3085 /* disable queue to avoid issues while updating state */
3086 IXGBE_WRITE_REG(hw
, IXGBE_TXDCTL(reg_idx
), 0);
3087 IXGBE_WRITE_FLUSH(hw
);
3089 IXGBE_WRITE_REG(hw
, IXGBE_TDBAL(reg_idx
),
3090 (tdba
& DMA_BIT_MASK(32)));
3091 IXGBE_WRITE_REG(hw
, IXGBE_TDBAH(reg_idx
), (tdba
>> 32));
3092 IXGBE_WRITE_REG(hw
, IXGBE_TDLEN(reg_idx
),
3093 ring
->count
* sizeof(union ixgbe_adv_tx_desc
));
3094 IXGBE_WRITE_REG(hw
, IXGBE_TDH(reg_idx
), 0);
3095 IXGBE_WRITE_REG(hw
, IXGBE_TDT(reg_idx
), 0);
3096 ring
->tail
= adapter
->io_addr
+ IXGBE_TDT(reg_idx
);
3099 * set WTHRESH to encourage burst writeback, it should not be set
3100 * higher than 1 when:
3101 * - ITR is 0 as it could cause false TX hangs
3102 * - ITR is set to > 100k int/sec and BQL is enabled
3104 * In order to avoid issues WTHRESH + PTHRESH should always be equal
3105 * to or less than the number of on chip descriptors, which is
3108 if (!ring
->q_vector
|| (ring
->q_vector
->itr
< IXGBE_100K_ITR
))
3109 txdctl
|= (1 << 16); /* WTHRESH = 1 */
3111 txdctl
|= (8 << 16); /* WTHRESH = 8 */
3114 * Setting PTHRESH to 32 both improves performance
3115 * and avoids a TX hang with DFP enabled
3117 txdctl
|= (1 << 8) | /* HTHRESH = 1 */
3118 32; /* PTHRESH = 32 */
3120 /* reinitialize flowdirector state */
3121 if (adapter
->flags
& IXGBE_FLAG_FDIR_HASH_CAPABLE
) {
3122 ring
->atr_sample_rate
= adapter
->atr_sample_rate
;
3123 ring
->atr_count
= 0;
3124 set_bit(__IXGBE_TX_FDIR_INIT_DONE
, &ring
->state
);
3126 ring
->atr_sample_rate
= 0;
3129 /* initialize XPS */
3130 if (!test_and_set_bit(__IXGBE_TX_XPS_INIT_DONE
, &ring
->state
)) {
3131 struct ixgbe_q_vector
*q_vector
= ring
->q_vector
;
3134 netif_set_xps_queue(ring
->netdev
,
3135 &q_vector
->affinity_mask
,
3139 clear_bit(__IXGBE_HANG_CHECK_ARMED
, &ring
->state
);
3142 IXGBE_WRITE_REG(hw
, IXGBE_TXDCTL(reg_idx
), txdctl
);
3144 /* TXDCTL.EN will return 0 on 82598 if link is down, so skip it */
3145 if (hw
->mac
.type
== ixgbe_mac_82598EB
&&
3146 !(IXGBE_READ_REG(hw
, IXGBE_LINKS
) & IXGBE_LINKS_UP
))
3149 /* poll to verify queue is enabled */
3151 usleep_range(1000, 2000);
3152 txdctl
= IXGBE_READ_REG(hw
, IXGBE_TXDCTL(reg_idx
));
3153 } while (--wait_loop
&& !(txdctl
& IXGBE_TXDCTL_ENABLE
));
3155 e_err(drv
, "Could not enable Tx Queue %d\n", reg_idx
);
3158 static void ixgbe_setup_mtqc(struct ixgbe_adapter
*adapter
)
3160 struct ixgbe_hw
*hw
= &adapter
->hw
;
3162 u8 tcs
= netdev_get_num_tc(adapter
->netdev
);
3164 if (hw
->mac
.type
== ixgbe_mac_82598EB
)
3167 /* disable the arbiter while setting MTQC */
3168 rttdcs
= IXGBE_READ_REG(hw
, IXGBE_RTTDCS
);
3169 rttdcs
|= IXGBE_RTTDCS_ARBDIS
;
3170 IXGBE_WRITE_REG(hw
, IXGBE_RTTDCS
, rttdcs
);
3172 /* set transmit pool layout */
3173 if (adapter
->flags
& IXGBE_FLAG_SRIOV_ENABLED
) {
3174 mtqc
= IXGBE_MTQC_VT_ENA
;
3176 mtqc
|= IXGBE_MTQC_RT_ENA
| IXGBE_MTQC_8TC_8TQ
;
3178 mtqc
|= IXGBE_MTQC_RT_ENA
| IXGBE_MTQC_4TC_4TQ
;
3179 else if (adapter
->ring_feature
[RING_F_RSS
].indices
== 4)
3180 mtqc
|= IXGBE_MTQC_32VF
;
3182 mtqc
|= IXGBE_MTQC_64VF
;
3185 mtqc
= IXGBE_MTQC_RT_ENA
| IXGBE_MTQC_8TC_8TQ
;
3187 mtqc
= IXGBE_MTQC_RT_ENA
| IXGBE_MTQC_4TC_4TQ
;
3189 mtqc
= IXGBE_MTQC_64Q_1PB
;
3192 IXGBE_WRITE_REG(hw
, IXGBE_MTQC
, mtqc
);
3194 /* Enable Security TX Buffer IFG for multiple pb */
3196 u32 sectx
= IXGBE_READ_REG(hw
, IXGBE_SECTXMINIFG
);
3197 sectx
|= IXGBE_SECTX_DCB
;
3198 IXGBE_WRITE_REG(hw
, IXGBE_SECTXMINIFG
, sectx
);
3201 /* re-enable the arbiter */
3202 rttdcs
&= ~IXGBE_RTTDCS_ARBDIS
;
3203 IXGBE_WRITE_REG(hw
, IXGBE_RTTDCS
, rttdcs
);
3207 * ixgbe_configure_tx - Configure 8259x Transmit Unit after Reset
3208 * @adapter: board private structure
3210 * Configure the Tx unit of the MAC after a reset.
3212 static void ixgbe_configure_tx(struct ixgbe_adapter
*adapter
)
3214 struct ixgbe_hw
*hw
= &adapter
->hw
;
3218 ixgbe_setup_mtqc(adapter
);
3220 if (hw
->mac
.type
!= ixgbe_mac_82598EB
) {
3221 /* DMATXCTL.EN must be before Tx queues are enabled */
3222 dmatxctl
= IXGBE_READ_REG(hw
, IXGBE_DMATXCTL
);
3223 dmatxctl
|= IXGBE_DMATXCTL_TE
;
3224 IXGBE_WRITE_REG(hw
, IXGBE_DMATXCTL
, dmatxctl
);
3227 /* Setup the HW Tx Head and Tail descriptor pointers */
3228 for (i
= 0; i
< adapter
->num_tx_queues
; i
++)
3229 ixgbe_configure_tx_ring(adapter
, adapter
->tx_ring
[i
]);
3232 static void ixgbe_enable_rx_drop(struct ixgbe_adapter
*adapter
,
3233 struct ixgbe_ring
*ring
)
3235 struct ixgbe_hw
*hw
= &adapter
->hw
;
3236 u8 reg_idx
= ring
->reg_idx
;
3237 u32 srrctl
= IXGBE_READ_REG(hw
, IXGBE_SRRCTL(reg_idx
));
3239 srrctl
|= IXGBE_SRRCTL_DROP_EN
;
3241 IXGBE_WRITE_REG(hw
, IXGBE_SRRCTL(reg_idx
), srrctl
);
3244 static void ixgbe_disable_rx_drop(struct ixgbe_adapter
*adapter
,
3245 struct ixgbe_ring
*ring
)
3247 struct ixgbe_hw
*hw
= &adapter
->hw
;
3248 u8 reg_idx
= ring
->reg_idx
;
3249 u32 srrctl
= IXGBE_READ_REG(hw
, IXGBE_SRRCTL(reg_idx
));
3251 srrctl
&= ~IXGBE_SRRCTL_DROP_EN
;
3253 IXGBE_WRITE_REG(hw
, IXGBE_SRRCTL(reg_idx
), srrctl
);
3256 #ifdef CONFIG_IXGBE_DCB
3257 void ixgbe_set_rx_drop_en(struct ixgbe_adapter
*adapter
)
3259 static void ixgbe_set_rx_drop_en(struct ixgbe_adapter
*adapter
)
3263 bool pfc_en
= adapter
->dcb_cfg
.pfc_mode_enable
;
3265 if (adapter
->ixgbe_ieee_pfc
)
3266 pfc_en
|= !!(adapter
->ixgbe_ieee_pfc
->pfc_en
);
3269 * We should set the drop enable bit if:
3272 * Number of Rx queues > 1 and flow control is disabled
3274 * This allows us to avoid head of line blocking for security
3275 * and performance reasons.
3277 if (adapter
->num_vfs
|| (adapter
->num_rx_queues
> 1 &&
3278 !(adapter
->hw
.fc
.current_mode
& ixgbe_fc_tx_pause
) && !pfc_en
)) {
3279 for (i
= 0; i
< adapter
->num_rx_queues
; i
++)
3280 ixgbe_enable_rx_drop(adapter
, adapter
->rx_ring
[i
]);
3282 for (i
= 0; i
< adapter
->num_rx_queues
; i
++)
3283 ixgbe_disable_rx_drop(adapter
, adapter
->rx_ring
[i
]);
3287 #define IXGBE_SRRCTL_BSIZEHDRSIZE_SHIFT 2
3289 static void ixgbe_configure_srrctl(struct ixgbe_adapter
*adapter
,
3290 struct ixgbe_ring
*rx_ring
)
3292 struct ixgbe_hw
*hw
= &adapter
->hw
;
3294 u8 reg_idx
= rx_ring
->reg_idx
;
3296 if (hw
->mac
.type
== ixgbe_mac_82598EB
) {
3297 u16 mask
= adapter
->ring_feature
[RING_F_RSS
].mask
;
3300 * if VMDq is not active we must program one srrctl register
3301 * per RSS queue since we have enabled RDRXCTL.MVMEN
3306 /* configure header buffer length, needed for RSC */
3307 srrctl
= IXGBE_RX_HDR_SIZE
<< IXGBE_SRRCTL_BSIZEHDRSIZE_SHIFT
;
3309 /* configure the packet buffer length */
3310 srrctl
|= ixgbe_rx_bufsz(rx_ring
) >> IXGBE_SRRCTL_BSIZEPKT_SHIFT
;
3312 /* configure descriptor type */
3313 srrctl
|= IXGBE_SRRCTL_DESCTYPE_ADV_ONEBUF
;
3315 IXGBE_WRITE_REG(hw
, IXGBE_SRRCTL(reg_idx
), srrctl
);
3319 * ixgbe_rss_indir_tbl_entries - Return RSS indirection table entries
3320 * @adapter: device handle
3322 * - 82598/82599/X540: 128
3323 * - X550(non-SRIOV mode): 512
3324 * - X550(SRIOV mode): 64
3326 u32
ixgbe_rss_indir_tbl_entries(struct ixgbe_adapter
*adapter
)
3328 if (adapter
->hw
.mac
.type
< ixgbe_mac_X550
)
3330 else if (adapter
->flags
& IXGBE_FLAG_SRIOV_ENABLED
)
3337 * ixgbe_store_reta - Write the RETA table to HW
3338 * @adapter: device handle
3340 * Write the RSS redirection table stored in adapter.rss_indir_tbl[] to HW.
3342 void ixgbe_store_reta(struct ixgbe_adapter
*adapter
)
3344 u32 i
, reta_entries
= ixgbe_rss_indir_tbl_entries(adapter
);
3345 struct ixgbe_hw
*hw
= &adapter
->hw
;
3348 u8
*indir_tbl
= adapter
->rss_indir_tbl
;
3350 /* Fill out the redirection table as follows:
3351 * - 82598: 8 bit wide entries containing pair of 4 bit RSS
3353 * - 82599/X540: 8 bit wide entries containing 4 bit RSS index
3354 * - X550: 8 bit wide entries containing 6 bit RSS index
3356 if (adapter
->hw
.mac
.type
== ixgbe_mac_82598EB
)
3357 indices_multi
= 0x11;
3359 indices_multi
= 0x1;
3361 /* Write redirection table to HW */
3362 for (i
= 0; i
< reta_entries
; i
++) {
3363 reta
|= indices_multi
* indir_tbl
[i
] << (i
& 0x3) * 8;
3366 IXGBE_WRITE_REG(hw
, IXGBE_RETA(i
>> 2), reta
);
3368 IXGBE_WRITE_REG(hw
, IXGBE_ERETA((i
>> 2) - 32),
3376 * ixgbe_store_vfreta - Write the RETA table to HW (x550 devices in SRIOV mode)
3377 * @adapter: device handle
3379 * Write the RSS redirection table stored in adapter.rss_indir_tbl[] to HW.
3381 static void ixgbe_store_vfreta(struct ixgbe_adapter
*adapter
)
3383 u32 i
, reta_entries
= ixgbe_rss_indir_tbl_entries(adapter
);
3384 struct ixgbe_hw
*hw
= &adapter
->hw
;
3386 unsigned int pf_pool
= adapter
->num_vfs
;
3388 /* Write redirection table to HW */
3389 for (i
= 0; i
< reta_entries
; i
++) {
3390 vfreta
|= (u32
)adapter
->rss_indir_tbl
[i
] << (i
& 0x3) * 8;
3392 IXGBE_WRITE_REG(hw
, IXGBE_PFVFRETA(i
>> 2, pf_pool
),
3399 static void ixgbe_setup_reta(struct ixgbe_adapter
*adapter
)
3401 struct ixgbe_hw
*hw
= &adapter
->hw
;
3403 u32 reta_entries
= ixgbe_rss_indir_tbl_entries(adapter
);
3404 u16 rss_i
= adapter
->ring_feature
[RING_F_RSS
].indices
;
3406 /* Program table for at least 2 queues w/ SR-IOV so that VFs can
3407 * make full use of any rings they may have. We will use the
3408 * PSRTYPE register to control how many rings we use within the PF.
3410 if ((adapter
->flags
& IXGBE_FLAG_SRIOV_ENABLED
) && (rss_i
< 2))
3413 /* Fill out hash function seeds */
3414 for (i
= 0; i
< 10; i
++)
3415 IXGBE_WRITE_REG(hw
, IXGBE_RSSRK(i
), adapter
->rss_key
[i
]);
3417 /* Fill out redirection table */
3418 memset(adapter
->rss_indir_tbl
, 0, sizeof(adapter
->rss_indir_tbl
));
3420 for (i
= 0, j
= 0; i
< reta_entries
; i
++, j
++) {
3424 adapter
->rss_indir_tbl
[i
] = j
;
3427 ixgbe_store_reta(adapter
);
3430 static void ixgbe_setup_vfreta(struct ixgbe_adapter
*adapter
)
3432 struct ixgbe_hw
*hw
= &adapter
->hw
;
3433 u16 rss_i
= adapter
->ring_feature
[RING_F_RSS
].indices
;
3434 unsigned int pf_pool
= adapter
->num_vfs
;
3437 /* Fill out hash function seeds */
3438 for (i
= 0; i
< 10; i
++)
3439 IXGBE_WRITE_REG(hw
, IXGBE_PFVFRSSRK(i
, pf_pool
),
3440 adapter
->rss_key
[i
]);
3442 /* Fill out the redirection table */
3443 for (i
= 0, j
= 0; i
< 64; i
++, j
++) {
3447 adapter
->rss_indir_tbl
[i
] = j
;
3450 ixgbe_store_vfreta(adapter
);
3453 static void ixgbe_setup_mrqc(struct ixgbe_adapter
*adapter
)
3455 struct ixgbe_hw
*hw
= &adapter
->hw
;
3456 u32 mrqc
= 0, rss_field
= 0, vfmrqc
= 0;
3459 /* Disable indicating checksum in descriptor, enables RSS hash */
3460 rxcsum
= IXGBE_READ_REG(hw
, IXGBE_RXCSUM
);
3461 rxcsum
|= IXGBE_RXCSUM_PCSD
;
3462 IXGBE_WRITE_REG(hw
, IXGBE_RXCSUM
, rxcsum
);
3464 if (adapter
->hw
.mac
.type
== ixgbe_mac_82598EB
) {
3465 if (adapter
->ring_feature
[RING_F_RSS
].mask
)
3466 mrqc
= IXGBE_MRQC_RSSEN
;
3468 u8 tcs
= netdev_get_num_tc(adapter
->netdev
);
3470 if (adapter
->flags
& IXGBE_FLAG_SRIOV_ENABLED
) {
3472 mrqc
= IXGBE_MRQC_VMDQRT8TCEN
; /* 8 TCs */
3474 mrqc
= IXGBE_MRQC_VMDQRT4TCEN
; /* 4 TCs */
3475 else if (adapter
->ring_feature
[RING_F_RSS
].indices
== 4)
3476 mrqc
= IXGBE_MRQC_VMDQRSS32EN
;
3478 mrqc
= IXGBE_MRQC_VMDQRSS64EN
;
3481 mrqc
= IXGBE_MRQC_RTRSS8TCEN
;
3483 mrqc
= IXGBE_MRQC_RTRSS4TCEN
;
3485 mrqc
= IXGBE_MRQC_RSSEN
;
3489 /* Perform hash on these packet types */
3490 rss_field
|= IXGBE_MRQC_RSS_FIELD_IPV4
|
3491 IXGBE_MRQC_RSS_FIELD_IPV4_TCP
|
3492 IXGBE_MRQC_RSS_FIELD_IPV6
|
3493 IXGBE_MRQC_RSS_FIELD_IPV6_TCP
;
3495 if (adapter
->flags2
& IXGBE_FLAG2_RSS_FIELD_IPV4_UDP
)
3496 rss_field
|= IXGBE_MRQC_RSS_FIELD_IPV4_UDP
;
3497 if (adapter
->flags2
& IXGBE_FLAG2_RSS_FIELD_IPV6_UDP
)
3498 rss_field
|= IXGBE_MRQC_RSS_FIELD_IPV6_UDP
;
3500 netdev_rss_key_fill(adapter
->rss_key
, sizeof(adapter
->rss_key
));
3501 if ((hw
->mac
.type
>= ixgbe_mac_X550
) &&
3502 (adapter
->flags
& IXGBE_FLAG_SRIOV_ENABLED
)) {
3503 unsigned int pf_pool
= adapter
->num_vfs
;
3505 /* Enable VF RSS mode */
3506 mrqc
|= IXGBE_MRQC_MULTIPLE_RSS
;
3507 IXGBE_WRITE_REG(hw
, IXGBE_MRQC
, mrqc
);
3509 /* Setup RSS through the VF registers */
3510 ixgbe_setup_vfreta(adapter
);
3511 vfmrqc
= IXGBE_MRQC_RSSEN
;
3512 vfmrqc
|= rss_field
;
3513 IXGBE_WRITE_REG(hw
, IXGBE_PFVFMRQC(pf_pool
), vfmrqc
);
3515 ixgbe_setup_reta(adapter
);
3517 IXGBE_WRITE_REG(hw
, IXGBE_MRQC
, mrqc
);
3522 * ixgbe_configure_rscctl - enable RSC for the indicated ring
3523 * @adapter: address of board private structure
3524 * @index: index of ring to set
3526 static void ixgbe_configure_rscctl(struct ixgbe_adapter
*adapter
,
3527 struct ixgbe_ring
*ring
)
3529 struct ixgbe_hw
*hw
= &adapter
->hw
;
3531 u8 reg_idx
= ring
->reg_idx
;
3533 if (!ring_is_rsc_enabled(ring
))
3536 rscctrl
= IXGBE_READ_REG(hw
, IXGBE_RSCCTL(reg_idx
));
3537 rscctrl
|= IXGBE_RSCCTL_RSCEN
;
3539 * we must limit the number of descriptors so that the
3540 * total size of max desc * buf_len is not greater
3543 rscctrl
|= IXGBE_RSCCTL_MAXDESC_16
;
3544 IXGBE_WRITE_REG(hw
, IXGBE_RSCCTL(reg_idx
), rscctrl
);
3547 #define IXGBE_MAX_RX_DESC_POLL 10
3548 static void ixgbe_rx_desc_queue_enable(struct ixgbe_adapter
*adapter
,
3549 struct ixgbe_ring
*ring
)
3551 struct ixgbe_hw
*hw
= &adapter
->hw
;
3552 int wait_loop
= IXGBE_MAX_RX_DESC_POLL
;
3554 u8 reg_idx
= ring
->reg_idx
;
3556 if (ixgbe_removed(hw
->hw_addr
))
3558 /* RXDCTL.EN will return 0 on 82598 if link is down, so skip it */
3559 if (hw
->mac
.type
== ixgbe_mac_82598EB
&&
3560 !(IXGBE_READ_REG(hw
, IXGBE_LINKS
) & IXGBE_LINKS_UP
))
3564 usleep_range(1000, 2000);
3565 rxdctl
= IXGBE_READ_REG(hw
, IXGBE_RXDCTL(reg_idx
));
3566 } while (--wait_loop
&& !(rxdctl
& IXGBE_RXDCTL_ENABLE
));
3569 e_err(drv
, "RXDCTL.ENABLE on Rx queue %d not set within "
3570 "the polling period\n", reg_idx
);
3574 void ixgbe_disable_rx_queue(struct ixgbe_adapter
*adapter
,
3575 struct ixgbe_ring
*ring
)
3577 struct ixgbe_hw
*hw
= &adapter
->hw
;
3578 int wait_loop
= IXGBE_MAX_RX_DESC_POLL
;
3580 u8 reg_idx
= ring
->reg_idx
;
3582 if (ixgbe_removed(hw
->hw_addr
))
3584 rxdctl
= IXGBE_READ_REG(hw
, IXGBE_RXDCTL(reg_idx
));
3585 rxdctl
&= ~IXGBE_RXDCTL_ENABLE
;
3587 /* write value back with RXDCTL.ENABLE bit cleared */
3588 IXGBE_WRITE_REG(hw
, IXGBE_RXDCTL(reg_idx
), rxdctl
);
3590 if (hw
->mac
.type
== ixgbe_mac_82598EB
&&
3591 !(IXGBE_READ_REG(hw
, IXGBE_LINKS
) & IXGBE_LINKS_UP
))
3594 /* the hardware may take up to 100us to really disable the rx queue */
3597 rxdctl
= IXGBE_READ_REG(hw
, IXGBE_RXDCTL(reg_idx
));
3598 } while (--wait_loop
&& (rxdctl
& IXGBE_RXDCTL_ENABLE
));
3601 e_err(drv
, "RXDCTL.ENABLE on Rx queue %d not cleared within "
3602 "the polling period\n", reg_idx
);
3606 void ixgbe_configure_rx_ring(struct ixgbe_adapter
*adapter
,
3607 struct ixgbe_ring
*ring
)
3609 struct ixgbe_hw
*hw
= &adapter
->hw
;
3610 u64 rdba
= ring
->dma
;
3612 u8 reg_idx
= ring
->reg_idx
;
3614 /* disable queue to avoid issues while updating state */
3615 rxdctl
= IXGBE_READ_REG(hw
, IXGBE_RXDCTL(reg_idx
));
3616 ixgbe_disable_rx_queue(adapter
, ring
);
3618 IXGBE_WRITE_REG(hw
, IXGBE_RDBAL(reg_idx
), (rdba
& DMA_BIT_MASK(32)));
3619 IXGBE_WRITE_REG(hw
, IXGBE_RDBAH(reg_idx
), (rdba
>> 32));
3620 IXGBE_WRITE_REG(hw
, IXGBE_RDLEN(reg_idx
),
3621 ring
->count
* sizeof(union ixgbe_adv_rx_desc
));
3622 IXGBE_WRITE_REG(hw
, IXGBE_RDH(reg_idx
), 0);
3623 IXGBE_WRITE_REG(hw
, IXGBE_RDT(reg_idx
), 0);
3624 ring
->tail
= adapter
->io_addr
+ IXGBE_RDT(reg_idx
);
3626 ixgbe_configure_srrctl(adapter
, ring
);
3627 ixgbe_configure_rscctl(adapter
, ring
);
3629 if (hw
->mac
.type
== ixgbe_mac_82598EB
) {
3631 * enable cache line friendly hardware writes:
3632 * PTHRESH=32 descriptors (half the internal cache),
3633 * this also removes ugly rx_no_buffer_count increment
3634 * HTHRESH=4 descriptors (to minimize latency on fetch)
3635 * WTHRESH=8 burst writeback up to two cache lines
3637 rxdctl
&= ~0x3FFFFF;
3641 /* enable receive descriptor ring */
3642 rxdctl
|= IXGBE_RXDCTL_ENABLE
;
3643 IXGBE_WRITE_REG(hw
, IXGBE_RXDCTL(reg_idx
), rxdctl
);
3645 ixgbe_rx_desc_queue_enable(adapter
, ring
);
3646 ixgbe_alloc_rx_buffers(ring
, ixgbe_desc_unused(ring
));
3649 static void ixgbe_setup_psrtype(struct ixgbe_adapter
*adapter
)
3651 struct ixgbe_hw
*hw
= &adapter
->hw
;
3652 int rss_i
= adapter
->ring_feature
[RING_F_RSS
].indices
;
3655 /* PSRTYPE must be initialized in non 82598 adapters */
3656 u32 psrtype
= IXGBE_PSRTYPE_TCPHDR
|
3657 IXGBE_PSRTYPE_UDPHDR
|
3658 IXGBE_PSRTYPE_IPV4HDR
|
3659 IXGBE_PSRTYPE_L2HDR
|
3660 IXGBE_PSRTYPE_IPV6HDR
;
3662 if (hw
->mac
.type
== ixgbe_mac_82598EB
)
3670 for_each_set_bit(pool
, &adapter
->fwd_bitmask
, 32)
3671 IXGBE_WRITE_REG(hw
, IXGBE_PSRTYPE(VMDQ_P(pool
)), psrtype
);
3674 static void ixgbe_configure_virtualization(struct ixgbe_adapter
*adapter
)
3676 struct ixgbe_hw
*hw
= &adapter
->hw
;
3677 u32 reg_offset
, vf_shift
;
3678 u32 gcr_ext
, vmdctl
;
3681 if (!(adapter
->flags
& IXGBE_FLAG_SRIOV_ENABLED
))
3684 vmdctl
= IXGBE_READ_REG(hw
, IXGBE_VT_CTL
);
3685 vmdctl
|= IXGBE_VMD_CTL_VMDQ_EN
;
3686 vmdctl
&= ~IXGBE_VT_CTL_POOL_MASK
;
3687 vmdctl
|= VMDQ_P(0) << IXGBE_VT_CTL_POOL_SHIFT
;
3688 vmdctl
|= IXGBE_VT_CTL_REPLEN
;
3689 IXGBE_WRITE_REG(hw
, IXGBE_VT_CTL
, vmdctl
);
3691 vf_shift
= VMDQ_P(0) % 32;
3692 reg_offset
= (VMDQ_P(0) >= 32) ? 1 : 0;
3694 /* Enable only the PF's pool for Tx/Rx */
3695 IXGBE_WRITE_REG(hw
, IXGBE_VFRE(reg_offset
), (~0) << vf_shift
);
3696 IXGBE_WRITE_REG(hw
, IXGBE_VFRE(reg_offset
^ 1), reg_offset
- 1);
3697 IXGBE_WRITE_REG(hw
, IXGBE_VFTE(reg_offset
), (~0) << vf_shift
);
3698 IXGBE_WRITE_REG(hw
, IXGBE_VFTE(reg_offset
^ 1), reg_offset
- 1);
3699 if (adapter
->bridge_mode
== BRIDGE_MODE_VEB
)
3700 IXGBE_WRITE_REG(hw
, IXGBE_PFDTXGSWC
, IXGBE_PFDTXGSWC_VT_LBEN
);
3702 /* Map PF MAC address in RAR Entry 0 to first pool following VFs */
3703 hw
->mac
.ops
.set_vmdq(hw
, 0, VMDQ_P(0));
3706 * Set up VF register offsets for selected VT Mode,
3707 * i.e. 32 or 64 VFs for SR-IOV
3709 switch (adapter
->ring_feature
[RING_F_VMDQ
].mask
) {
3710 case IXGBE_82599_VMDQ_8Q_MASK
:
3711 gcr_ext
= IXGBE_GCR_EXT_VT_MODE_16
;
3713 case IXGBE_82599_VMDQ_4Q_MASK
:
3714 gcr_ext
= IXGBE_GCR_EXT_VT_MODE_32
;
3717 gcr_ext
= IXGBE_GCR_EXT_VT_MODE_64
;
3721 IXGBE_WRITE_REG(hw
, IXGBE_GCR_EXT
, gcr_ext
);
3724 /* Enable MAC Anti-Spoofing */
3725 hw
->mac
.ops
.set_mac_anti_spoofing(hw
, (adapter
->num_vfs
!= 0),
3728 /* Ensure LLDP and FC is set for Ethertype Antispoofing if we will be
3729 * calling set_ethertype_anti_spoofing for each VF in loop below
3731 if (hw
->mac
.ops
.set_ethertype_anti_spoofing
) {
3732 IXGBE_WRITE_REG(hw
, IXGBE_ETQF(IXGBE_ETQF_FILTER_LLDP
),
3733 (IXGBE_ETQF_FILTER_EN
|
3734 IXGBE_ETQF_TX_ANTISPOOF
|
3737 IXGBE_WRITE_REG(hw
, IXGBE_ETQF(IXGBE_ETQF_FILTER_FC
),
3738 (IXGBE_ETQF_FILTER_EN
|
3739 IXGBE_ETQF_TX_ANTISPOOF
|
3743 /* For VFs that have spoof checking turned off */
3744 for (i
= 0; i
< adapter
->num_vfs
; i
++) {
3745 if (!adapter
->vfinfo
[i
].spoofchk_enabled
)
3746 ixgbe_ndo_set_vf_spoofchk(adapter
->netdev
, i
, false);
3748 /* enable ethertype anti spoofing if hw supports it */
3749 if (hw
->mac
.ops
.set_ethertype_anti_spoofing
)
3750 hw
->mac
.ops
.set_ethertype_anti_spoofing(hw
, true, i
);
3752 /* Enable/Disable RSS query feature */
3753 ixgbe_ndo_set_vf_rss_query_en(adapter
->netdev
, i
,
3754 adapter
->vfinfo
[i
].rss_query_enabled
);
3758 static void ixgbe_set_rx_buffer_len(struct ixgbe_adapter
*adapter
)
3760 struct ixgbe_hw
*hw
= &adapter
->hw
;
3761 struct net_device
*netdev
= adapter
->netdev
;
3762 int max_frame
= netdev
->mtu
+ ETH_HLEN
+ ETH_FCS_LEN
;
3763 struct ixgbe_ring
*rx_ring
;
3768 /* adjust max frame to be able to do baby jumbo for FCoE */
3769 if ((adapter
->flags
& IXGBE_FLAG_FCOE_ENABLED
) &&
3770 (max_frame
< IXGBE_FCOE_JUMBO_FRAME_SIZE
))
3771 max_frame
= IXGBE_FCOE_JUMBO_FRAME_SIZE
;
3773 #endif /* IXGBE_FCOE */
3775 /* adjust max frame to be at least the size of a standard frame */
3776 if (max_frame
< (ETH_FRAME_LEN
+ ETH_FCS_LEN
))
3777 max_frame
= (ETH_FRAME_LEN
+ ETH_FCS_LEN
);
3779 mhadd
= IXGBE_READ_REG(hw
, IXGBE_MHADD
);
3780 if (max_frame
!= (mhadd
>> IXGBE_MHADD_MFS_SHIFT
)) {
3781 mhadd
&= ~IXGBE_MHADD_MFS_MASK
;
3782 mhadd
|= max_frame
<< IXGBE_MHADD_MFS_SHIFT
;
3784 IXGBE_WRITE_REG(hw
, IXGBE_MHADD
, mhadd
);
3787 hlreg0
= IXGBE_READ_REG(hw
, IXGBE_HLREG0
);
3788 /* set jumbo enable since MHADD.MFS is keeping size locked at max_frame */
3789 hlreg0
|= IXGBE_HLREG0_JUMBOEN
;
3790 IXGBE_WRITE_REG(hw
, IXGBE_HLREG0
, hlreg0
);
3793 * Setup the HW Rx Head and Tail Descriptor Pointers and
3794 * the Base and Length of the Rx Descriptor Ring
3796 for (i
= 0; i
< adapter
->num_rx_queues
; i
++) {
3797 rx_ring
= adapter
->rx_ring
[i
];
3798 if (adapter
->flags2
& IXGBE_FLAG2_RSC_ENABLED
)
3799 set_ring_rsc_enabled(rx_ring
);
3801 clear_ring_rsc_enabled(rx_ring
);
3805 static void ixgbe_setup_rdrxctl(struct ixgbe_adapter
*adapter
)
3807 struct ixgbe_hw
*hw
= &adapter
->hw
;
3808 u32 rdrxctl
= IXGBE_READ_REG(hw
, IXGBE_RDRXCTL
);
3810 switch (hw
->mac
.type
) {
3811 case ixgbe_mac_82598EB
:
3813 * For VMDq support of different descriptor types or
3814 * buffer sizes through the use of multiple SRRCTL
3815 * registers, RDRXCTL.MVMEN must be set to 1
3817 * also, the manual doesn't mention it clearly but DCA hints
3818 * will only use queue 0's tags unless this bit is set. Side
3819 * effects of setting this bit are only that SRRCTL must be
3820 * fully programmed [0..15]
3822 rdrxctl
|= IXGBE_RDRXCTL_MVMEN
;
3824 case ixgbe_mac_X550
:
3825 case ixgbe_mac_X550EM_x
:
3826 if (adapter
->num_vfs
)
3827 rdrxctl
|= IXGBE_RDRXCTL_PSP
;
3828 /* fall through for older HW */
3829 case ixgbe_mac_82599EB
:
3830 case ixgbe_mac_X540
:
3831 /* Disable RSC for ACK packets */
3832 IXGBE_WRITE_REG(hw
, IXGBE_RSCDBU
,
3833 (IXGBE_RSCDBU_RSCACKDIS
| IXGBE_READ_REG(hw
, IXGBE_RSCDBU
)));
3834 rdrxctl
&= ~IXGBE_RDRXCTL_RSCFRSTSIZE
;
3835 /* hardware requires some bits to be set by default */
3836 rdrxctl
|= (IXGBE_RDRXCTL_RSCACKC
| IXGBE_RDRXCTL_FCOE_WRFIX
);
3837 rdrxctl
|= IXGBE_RDRXCTL_CRCSTRIP
;
3840 /* We should do nothing since we don't know this hardware */
3844 IXGBE_WRITE_REG(hw
, IXGBE_RDRXCTL
, rdrxctl
);
3848 * ixgbe_configure_rx - Configure 8259x Receive Unit after Reset
3849 * @adapter: board private structure
3851 * Configure the Rx unit of the MAC after a reset.
3853 static void ixgbe_configure_rx(struct ixgbe_adapter
*adapter
)
3855 struct ixgbe_hw
*hw
= &adapter
->hw
;
3859 /* disable receives while setting up the descriptors */
3860 hw
->mac
.ops
.disable_rx(hw
);
3862 ixgbe_setup_psrtype(adapter
);
3863 ixgbe_setup_rdrxctl(adapter
);
3866 rfctl
= IXGBE_READ_REG(hw
, IXGBE_RFCTL
);
3867 rfctl
&= ~IXGBE_RFCTL_RSC_DIS
;
3868 if (!(adapter
->flags2
& IXGBE_FLAG2_RSC_ENABLED
))
3869 rfctl
|= IXGBE_RFCTL_RSC_DIS
;
3870 IXGBE_WRITE_REG(hw
, IXGBE_RFCTL
, rfctl
);
3872 /* Program registers for the distribution of queues */
3873 ixgbe_setup_mrqc(adapter
);
3875 /* set_rx_buffer_len must be called before ring initialization */
3876 ixgbe_set_rx_buffer_len(adapter
);
3879 * Setup the HW Rx Head and Tail Descriptor Pointers and
3880 * the Base and Length of the Rx Descriptor Ring
3882 for (i
= 0; i
< adapter
->num_rx_queues
; i
++)
3883 ixgbe_configure_rx_ring(adapter
, adapter
->rx_ring
[i
]);
3885 rxctrl
= IXGBE_READ_REG(hw
, IXGBE_RXCTRL
);
3886 /* disable drop enable for 82598 parts */
3887 if (hw
->mac
.type
== ixgbe_mac_82598EB
)
3888 rxctrl
|= IXGBE_RXCTRL_DMBYPS
;
3890 /* enable all receives */
3891 rxctrl
|= IXGBE_RXCTRL_RXEN
;
3892 hw
->mac
.ops
.enable_rx_dma(hw
, rxctrl
);
3895 static int ixgbe_vlan_rx_add_vid(struct net_device
*netdev
,
3896 __be16 proto
, u16 vid
)
3898 struct ixgbe_adapter
*adapter
= netdev_priv(netdev
);
3899 struct ixgbe_hw
*hw
= &adapter
->hw
;
3901 /* add VID to filter table */
3902 hw
->mac
.ops
.set_vfta(&adapter
->hw
, vid
, VMDQ_P(0), true);
3903 set_bit(vid
, adapter
->active_vlans
);
3908 static int ixgbe_vlan_rx_kill_vid(struct net_device
*netdev
,
3909 __be16 proto
, u16 vid
)
3911 struct ixgbe_adapter
*adapter
= netdev_priv(netdev
);
3912 struct ixgbe_hw
*hw
= &adapter
->hw
;
3914 /* remove VID from filter table */
3915 hw
->mac
.ops
.set_vfta(&adapter
->hw
, vid
, VMDQ_P(0), false);
3916 clear_bit(vid
, adapter
->active_vlans
);
3922 * ixgbe_vlan_strip_disable - helper to disable hw vlan stripping
3923 * @adapter: driver data
3925 static void ixgbe_vlan_strip_disable(struct ixgbe_adapter
*adapter
)
3927 struct ixgbe_hw
*hw
= &adapter
->hw
;
3931 switch (hw
->mac
.type
) {
3932 case ixgbe_mac_82598EB
:
3933 vlnctrl
= IXGBE_READ_REG(hw
, IXGBE_VLNCTRL
);
3934 vlnctrl
&= ~IXGBE_VLNCTRL_VME
;
3935 IXGBE_WRITE_REG(hw
, IXGBE_VLNCTRL
, vlnctrl
);
3937 case ixgbe_mac_82599EB
:
3938 case ixgbe_mac_X540
:
3939 case ixgbe_mac_X550
:
3940 case ixgbe_mac_X550EM_x
:
3941 for (i
= 0; i
< adapter
->num_rx_queues
; i
++) {
3942 struct ixgbe_ring
*ring
= adapter
->rx_ring
[i
];
3944 if (ring
->l2_accel_priv
)
3947 vlnctrl
= IXGBE_READ_REG(hw
, IXGBE_RXDCTL(j
));
3948 vlnctrl
&= ~IXGBE_RXDCTL_VME
;
3949 IXGBE_WRITE_REG(hw
, IXGBE_RXDCTL(j
), vlnctrl
);
3958 * ixgbe_vlan_strip_enable - helper to enable hw vlan stripping
3959 * @adapter: driver data
3961 static void ixgbe_vlan_strip_enable(struct ixgbe_adapter
*adapter
)
3963 struct ixgbe_hw
*hw
= &adapter
->hw
;
3967 switch (hw
->mac
.type
) {
3968 case ixgbe_mac_82598EB
:
3969 vlnctrl
= IXGBE_READ_REG(hw
, IXGBE_VLNCTRL
);
3970 vlnctrl
|= IXGBE_VLNCTRL_VME
;
3971 IXGBE_WRITE_REG(hw
, IXGBE_VLNCTRL
, vlnctrl
);
3973 case ixgbe_mac_82599EB
:
3974 case ixgbe_mac_X540
:
3975 case ixgbe_mac_X550
:
3976 case ixgbe_mac_X550EM_x
:
3977 for (i
= 0; i
< adapter
->num_rx_queues
; i
++) {
3978 struct ixgbe_ring
*ring
= adapter
->rx_ring
[i
];
3980 if (ring
->l2_accel_priv
)
3983 vlnctrl
= IXGBE_READ_REG(hw
, IXGBE_RXDCTL(j
));
3984 vlnctrl
|= IXGBE_RXDCTL_VME
;
3985 IXGBE_WRITE_REG(hw
, IXGBE_RXDCTL(j
), vlnctrl
);
3993 static void ixgbe_restore_vlan(struct ixgbe_adapter
*adapter
)
3997 ixgbe_vlan_rx_add_vid(adapter
->netdev
, htons(ETH_P_8021Q
), 0);
3999 for_each_set_bit(vid
, adapter
->active_vlans
, VLAN_N_VID
)
4000 ixgbe_vlan_rx_add_vid(adapter
->netdev
, htons(ETH_P_8021Q
), vid
);
4004 * ixgbe_write_mc_addr_list - write multicast addresses to MTA
4005 * @netdev: network interface device structure
4007 * Writes multicast address list to the MTA hash table.
4008 * Returns: -ENOMEM on failure
4009 * 0 on no addresses written
4010 * X on writing X addresses to MTA
4012 static int ixgbe_write_mc_addr_list(struct net_device
*netdev
)
4014 struct ixgbe_adapter
*adapter
= netdev_priv(netdev
);
4015 struct ixgbe_hw
*hw
= &adapter
->hw
;
4017 if (!netif_running(netdev
))
4020 if (hw
->mac
.ops
.update_mc_addr_list
)
4021 hw
->mac
.ops
.update_mc_addr_list(hw
, netdev
);
4025 #ifdef CONFIG_PCI_IOV
4026 ixgbe_restore_vf_multicasts(adapter
);
4029 return netdev_mc_count(netdev
);
4032 #ifdef CONFIG_PCI_IOV
4033 void ixgbe_full_sync_mac_table(struct ixgbe_adapter
*adapter
)
4035 struct ixgbe_mac_addr
*mac_table
= &adapter
->mac_table
[0];
4036 struct ixgbe_hw
*hw
= &adapter
->hw
;
4039 for (i
= 0; i
< hw
->mac
.num_rar_entries
; i
++, mac_table
++) {
4040 mac_table
->state
&= ~IXGBE_MAC_STATE_MODIFIED
;
4042 if (mac_table
->state
& IXGBE_MAC_STATE_IN_USE
)
4043 hw
->mac
.ops
.set_rar(hw
, i
,
4048 hw
->mac
.ops
.clear_rar(hw
, i
);
4053 static void ixgbe_sync_mac_table(struct ixgbe_adapter
*adapter
)
4055 struct ixgbe_mac_addr
*mac_table
= &adapter
->mac_table
[0];
4056 struct ixgbe_hw
*hw
= &adapter
->hw
;
4059 for (i
= 0; i
< hw
->mac
.num_rar_entries
; i
++, mac_table
++) {
4060 if (!(mac_table
->state
& IXGBE_MAC_STATE_MODIFIED
))
4063 mac_table
->state
&= ~IXGBE_MAC_STATE_MODIFIED
;
4065 if (mac_table
->state
& IXGBE_MAC_STATE_IN_USE
)
4066 hw
->mac
.ops
.set_rar(hw
, i
,
4071 hw
->mac
.ops
.clear_rar(hw
, i
);
4075 static void ixgbe_flush_sw_mac_table(struct ixgbe_adapter
*adapter
)
4077 struct ixgbe_mac_addr
*mac_table
= &adapter
->mac_table
[0];
4078 struct ixgbe_hw
*hw
= &adapter
->hw
;
4081 for (i
= 0; i
< hw
->mac
.num_rar_entries
; i
++, mac_table
++) {
4082 mac_table
->state
|= IXGBE_MAC_STATE_MODIFIED
;
4083 mac_table
->state
&= ~IXGBE_MAC_STATE_IN_USE
;
4086 ixgbe_sync_mac_table(adapter
);
4089 static int ixgbe_available_rars(struct ixgbe_adapter
*adapter
, u16 pool
)
4091 struct ixgbe_mac_addr
*mac_table
= &adapter
->mac_table
[0];
4092 struct ixgbe_hw
*hw
= &adapter
->hw
;
4095 for (i
= 0; i
< hw
->mac
.num_rar_entries
; i
++, mac_table
++) {
4096 /* do not count default RAR as available */
4097 if (mac_table
->state
& IXGBE_MAC_STATE_DEFAULT
)
4100 /* only count unused and addresses that belong to us */
4101 if (mac_table
->state
& IXGBE_MAC_STATE_IN_USE
) {
4102 if (mac_table
->pool
!= pool
)
4112 /* this function destroys the first RAR entry */
4113 static void ixgbe_mac_set_default_filter(struct ixgbe_adapter
*adapter
)
4115 struct ixgbe_mac_addr
*mac_table
= &adapter
->mac_table
[0];
4116 struct ixgbe_hw
*hw
= &adapter
->hw
;
4118 memcpy(&mac_table
->addr
, hw
->mac
.addr
, ETH_ALEN
);
4119 mac_table
->pool
= VMDQ_P(0);
4121 mac_table
->state
= IXGBE_MAC_STATE_DEFAULT
| IXGBE_MAC_STATE_IN_USE
;
4123 hw
->mac
.ops
.set_rar(hw
, 0, mac_table
->addr
, mac_table
->pool
,
4127 int ixgbe_add_mac_filter(struct ixgbe_adapter
*adapter
,
4128 const u8
*addr
, u16 pool
)
4130 struct ixgbe_mac_addr
*mac_table
= &adapter
->mac_table
[0];
4131 struct ixgbe_hw
*hw
= &adapter
->hw
;
4134 if (is_zero_ether_addr(addr
))
4137 for (i
= 0; i
< hw
->mac
.num_rar_entries
; i
++, mac_table
++) {
4138 if (mac_table
->state
& IXGBE_MAC_STATE_IN_USE
)
4141 ether_addr_copy(mac_table
->addr
, addr
);
4142 mac_table
->pool
= pool
;
4144 mac_table
->state
|= IXGBE_MAC_STATE_MODIFIED
|
4145 IXGBE_MAC_STATE_IN_USE
;
4147 ixgbe_sync_mac_table(adapter
);
4155 int ixgbe_del_mac_filter(struct ixgbe_adapter
*adapter
,
4156 const u8
*addr
, u16 pool
)
4158 struct ixgbe_mac_addr
*mac_table
= &adapter
->mac_table
[0];
4159 struct ixgbe_hw
*hw
= &adapter
->hw
;
4162 if (is_zero_ether_addr(addr
))
4165 /* search table for addr, if found clear IN_USE flag and sync */
4166 for (i
= 0; i
< hw
->mac
.num_rar_entries
; i
++, mac_table
++) {
4167 /* we can only delete an entry if it is in use */
4168 if (!(mac_table
->state
& IXGBE_MAC_STATE_IN_USE
))
4170 /* we only care about entries that belong to the given pool */
4171 if (mac_table
->pool
!= pool
)
4173 /* we only care about a specific MAC address */
4174 if (!ether_addr_equal(addr
, mac_table
->addr
))
4177 mac_table
->state
|= IXGBE_MAC_STATE_MODIFIED
;
4178 mac_table
->state
&= ~IXGBE_MAC_STATE_IN_USE
;
4180 ixgbe_sync_mac_table(adapter
);
4188 * ixgbe_write_uc_addr_list - write unicast addresses to RAR table
4189 * @netdev: network interface device structure
4191 * Writes unicast address list to the RAR table.
4192 * Returns: -ENOMEM on failure/insufficient address space
4193 * 0 on no addresses written
4194 * X on writing X addresses to the RAR table
4196 static int ixgbe_write_uc_addr_list(struct net_device
*netdev
, int vfn
)
4198 struct ixgbe_adapter
*adapter
= netdev_priv(netdev
);
4201 /* return ENOMEM indicating insufficient memory for addresses */
4202 if (netdev_uc_count(netdev
) > ixgbe_available_rars(adapter
, vfn
))
4205 if (!netdev_uc_empty(netdev
)) {
4206 struct netdev_hw_addr
*ha
;
4207 netdev_for_each_uc_addr(ha
, netdev
) {
4208 ixgbe_del_mac_filter(adapter
, ha
->addr
, vfn
);
4209 ixgbe_add_mac_filter(adapter
, ha
->addr
, vfn
);
4216 static int ixgbe_uc_sync(struct net_device
*netdev
, const unsigned char *addr
)
4218 struct ixgbe_adapter
*adapter
= netdev_priv(netdev
);
4221 ret
= ixgbe_add_mac_filter(adapter
, addr
, VMDQ_P(0));
4223 return min_t(int, ret
, 0);
4226 static int ixgbe_uc_unsync(struct net_device
*netdev
, const unsigned char *addr
)
4228 struct ixgbe_adapter
*adapter
= netdev_priv(netdev
);
4230 ixgbe_del_mac_filter(adapter
, addr
, VMDQ_P(0));
4236 * ixgbe_set_rx_mode - Unicast, Multicast and Promiscuous mode set
4237 * @netdev: network interface device structure
4239 * The set_rx_method entry point is called whenever the unicast/multicast
4240 * address list or the network interface flags are updated. This routine is
4241 * responsible for configuring the hardware for proper unicast, multicast and
4244 void ixgbe_set_rx_mode(struct net_device
*netdev
)
4246 struct ixgbe_adapter
*adapter
= netdev_priv(netdev
);
4247 struct ixgbe_hw
*hw
= &adapter
->hw
;
4248 u32 fctrl
, vmolr
= IXGBE_VMOLR_BAM
| IXGBE_VMOLR_AUPE
;
4252 /* Check for Promiscuous and All Multicast modes */
4253 fctrl
= IXGBE_READ_REG(hw
, IXGBE_FCTRL
);
4254 vlnctrl
= IXGBE_READ_REG(hw
, IXGBE_VLNCTRL
);
4256 /* set all bits that we expect to always be set */
4257 fctrl
&= ~IXGBE_FCTRL_SBP
; /* disable store-bad-packets */
4258 fctrl
|= IXGBE_FCTRL_BAM
;
4259 fctrl
|= IXGBE_FCTRL_DPF
; /* discard pause frames when FC enabled */
4260 fctrl
|= IXGBE_FCTRL_PMCF
;
4262 /* clear the bits we are changing the status of */
4263 fctrl
&= ~(IXGBE_FCTRL_UPE
| IXGBE_FCTRL_MPE
);
4264 vlnctrl
&= ~(IXGBE_VLNCTRL_VFE
| IXGBE_VLNCTRL_CFIEN
);
4265 if (netdev
->flags
& IFF_PROMISC
) {
4266 hw
->addr_ctrl
.user_set_promisc
= true;
4267 fctrl
|= (IXGBE_FCTRL_UPE
| IXGBE_FCTRL_MPE
);
4268 vmolr
|= IXGBE_VMOLR_MPE
;
4269 /* Only disable hardware filter vlans in promiscuous mode
4270 * if SR-IOV and VMDQ are disabled - otherwise ensure
4271 * that hardware VLAN filters remain enabled.
4273 if (adapter
->flags
& (IXGBE_FLAG_VMDQ_ENABLED
|
4274 IXGBE_FLAG_SRIOV_ENABLED
))
4275 vlnctrl
|= (IXGBE_VLNCTRL_VFE
| IXGBE_VLNCTRL_CFIEN
);
4277 if (netdev
->flags
& IFF_ALLMULTI
) {
4278 fctrl
|= IXGBE_FCTRL_MPE
;
4279 vmolr
|= IXGBE_VMOLR_MPE
;
4281 vlnctrl
|= IXGBE_VLNCTRL_VFE
;
4282 hw
->addr_ctrl
.user_set_promisc
= false;
4286 * Write addresses to available RAR registers, if there is not
4287 * sufficient space to store all the addresses then enable
4288 * unicast promiscuous mode
4290 if (__dev_uc_sync(netdev
, ixgbe_uc_sync
, ixgbe_uc_unsync
)) {
4291 fctrl
|= IXGBE_FCTRL_UPE
;
4292 vmolr
|= IXGBE_VMOLR_ROPE
;
4295 /* Write addresses to the MTA, if the attempt fails
4296 * then we should just turn on promiscuous mode so
4297 * that we can at least receive multicast traffic
4299 count
= ixgbe_write_mc_addr_list(netdev
);
4301 fctrl
|= IXGBE_FCTRL_MPE
;
4302 vmolr
|= IXGBE_VMOLR_MPE
;
4304 vmolr
|= IXGBE_VMOLR_ROMPE
;
4307 if (hw
->mac
.type
!= ixgbe_mac_82598EB
) {
4308 vmolr
|= IXGBE_READ_REG(hw
, IXGBE_VMOLR(VMDQ_P(0))) &
4309 ~(IXGBE_VMOLR_MPE
| IXGBE_VMOLR_ROMPE
|
4311 IXGBE_WRITE_REG(hw
, IXGBE_VMOLR(VMDQ_P(0)), vmolr
);
4314 /* This is useful for sniffing bad packets. */
4315 if (adapter
->netdev
->features
& NETIF_F_RXALL
) {
4316 /* UPE and MPE will be handled by normal PROMISC logic
4317 * in e1000e_set_rx_mode */
4318 fctrl
|= (IXGBE_FCTRL_SBP
| /* Receive bad packets */
4319 IXGBE_FCTRL_BAM
| /* RX All Bcast Pkts */
4320 IXGBE_FCTRL_PMCF
); /* RX All MAC Ctrl Pkts */
4322 fctrl
&= ~(IXGBE_FCTRL_DPF
);
4323 /* NOTE: VLAN filtering is disabled by setting PROMISC */
4326 IXGBE_WRITE_REG(hw
, IXGBE_VLNCTRL
, vlnctrl
);
4327 IXGBE_WRITE_REG(hw
, IXGBE_FCTRL
, fctrl
);
4329 if (netdev
->features
& NETIF_F_HW_VLAN_CTAG_RX
)
4330 ixgbe_vlan_strip_enable(adapter
);
4332 ixgbe_vlan_strip_disable(adapter
);
4335 static void ixgbe_napi_enable_all(struct ixgbe_adapter
*adapter
)
4339 for (q_idx
= 0; q_idx
< adapter
->num_q_vectors
; q_idx
++) {
4340 ixgbe_qv_init_lock(adapter
->q_vector
[q_idx
]);
4341 napi_enable(&adapter
->q_vector
[q_idx
]->napi
);
4345 static void ixgbe_napi_disable_all(struct ixgbe_adapter
*adapter
)
4349 for (q_idx
= 0; q_idx
< adapter
->num_q_vectors
; q_idx
++) {
4350 napi_disable(&adapter
->q_vector
[q_idx
]->napi
);
4351 while (!ixgbe_qv_disable(adapter
->q_vector
[q_idx
])) {
4352 pr_info("QV %d locked\n", q_idx
);
4353 usleep_range(1000, 20000);
4358 static void ixgbe_clear_vxlan_port(struct ixgbe_adapter
*adapter
)
4360 switch (adapter
->hw
.mac
.type
) {
4361 case ixgbe_mac_X550
:
4362 case ixgbe_mac_X550EM_x
:
4363 IXGBE_WRITE_REG(&adapter
->hw
, IXGBE_VXLANCTRL
, 0);
4364 #ifdef CONFIG_IXGBE_VXLAN
4365 adapter
->vxlan_port
= 0;
4373 #ifdef CONFIG_IXGBE_DCB
4375 * ixgbe_configure_dcb - Configure DCB hardware
4376 * @adapter: ixgbe adapter struct
4378 * This is called by the driver on open to configure the DCB hardware.
4379 * This is also called by the gennetlink interface when reconfiguring
4382 static void ixgbe_configure_dcb(struct ixgbe_adapter
*adapter
)
4384 struct ixgbe_hw
*hw
= &adapter
->hw
;
4385 int max_frame
= adapter
->netdev
->mtu
+ ETH_HLEN
+ ETH_FCS_LEN
;
4387 if (!(adapter
->flags
& IXGBE_FLAG_DCB_ENABLED
)) {
4388 if (hw
->mac
.type
== ixgbe_mac_82598EB
)
4389 netif_set_gso_max_size(adapter
->netdev
, 65536);
4393 if (hw
->mac
.type
== ixgbe_mac_82598EB
)
4394 netif_set_gso_max_size(adapter
->netdev
, 32768);
4397 if (adapter
->netdev
->features
& NETIF_F_FCOE_MTU
)
4398 max_frame
= max(max_frame
, IXGBE_FCOE_JUMBO_FRAME_SIZE
);
4401 /* reconfigure the hardware */
4402 if (adapter
->dcbx_cap
& DCB_CAP_DCBX_VER_CEE
) {
4403 ixgbe_dcb_calculate_tc_credits(hw
, &adapter
->dcb_cfg
, max_frame
,
4405 ixgbe_dcb_calculate_tc_credits(hw
, &adapter
->dcb_cfg
, max_frame
,
4407 ixgbe_dcb_hw_config(hw
, &adapter
->dcb_cfg
);
4408 } else if (adapter
->ixgbe_ieee_ets
&& adapter
->ixgbe_ieee_pfc
) {
4409 ixgbe_dcb_hw_ets(&adapter
->hw
,
4410 adapter
->ixgbe_ieee_ets
,
4412 ixgbe_dcb_hw_pfc_config(&adapter
->hw
,
4413 adapter
->ixgbe_ieee_pfc
->pfc_en
,
4414 adapter
->ixgbe_ieee_ets
->prio_tc
);
4417 /* Enable RSS Hash per TC */
4418 if (hw
->mac
.type
!= ixgbe_mac_82598EB
) {
4420 u16 rss_i
= adapter
->ring_feature
[RING_F_RSS
].indices
- 1;
4427 /* write msb to all 8 TCs in one write */
4428 IXGBE_WRITE_REG(hw
, IXGBE_RQTC
, msb
* 0x11111111);
4433 /* Additional bittime to account for IXGBE framing */
4434 #define IXGBE_ETH_FRAMING 20
4437 * ixgbe_hpbthresh - calculate high water mark for flow control
4439 * @adapter: board private structure to calculate for
4440 * @pb: packet buffer to calculate
4442 static int ixgbe_hpbthresh(struct ixgbe_adapter
*adapter
, int pb
)
4444 struct ixgbe_hw
*hw
= &adapter
->hw
;
4445 struct net_device
*dev
= adapter
->netdev
;
4446 int link
, tc
, kb
, marker
;
4449 /* Calculate max LAN frame size */
4450 tc
= link
= dev
->mtu
+ ETH_HLEN
+ ETH_FCS_LEN
+ IXGBE_ETH_FRAMING
;
4453 /* FCoE traffic class uses FCOE jumbo frames */
4454 if ((dev
->features
& NETIF_F_FCOE_MTU
) &&
4455 (tc
< IXGBE_FCOE_JUMBO_FRAME_SIZE
) &&
4456 (pb
== ixgbe_fcoe_get_tc(adapter
)))
4457 tc
= IXGBE_FCOE_JUMBO_FRAME_SIZE
;
4460 /* Calculate delay value for device */
4461 switch (hw
->mac
.type
) {
4462 case ixgbe_mac_X540
:
4463 case ixgbe_mac_X550
:
4464 case ixgbe_mac_X550EM_x
:
4465 dv_id
= IXGBE_DV_X540(link
, tc
);
4468 dv_id
= IXGBE_DV(link
, tc
);
4472 /* Loopback switch introduces additional latency */
4473 if (adapter
->flags
& IXGBE_FLAG_SRIOV_ENABLED
)
4474 dv_id
+= IXGBE_B2BT(tc
);
4476 /* Delay value is calculated in bit times convert to KB */
4477 kb
= IXGBE_BT2KB(dv_id
);
4478 rx_pba
= IXGBE_READ_REG(hw
, IXGBE_RXPBSIZE(pb
)) >> 10;
4480 marker
= rx_pba
- kb
;
4482 /* It is possible that the packet buffer is not large enough
4483 * to provide required headroom. In this case throw an error
4484 * to user and a do the best we can.
4487 e_warn(drv
, "Packet Buffer(%i) can not provide enough"
4488 "headroom to support flow control."
4489 "Decrease MTU or number of traffic classes\n", pb
);
4497 * ixgbe_lpbthresh - calculate low water mark for for flow control
4499 * @adapter: board private structure to calculate for
4500 * @pb: packet buffer to calculate
4502 static int ixgbe_lpbthresh(struct ixgbe_adapter
*adapter
, int pb
)
4504 struct ixgbe_hw
*hw
= &adapter
->hw
;
4505 struct net_device
*dev
= adapter
->netdev
;
4509 /* Calculate max LAN frame size */
4510 tc
= dev
->mtu
+ ETH_HLEN
+ ETH_FCS_LEN
;
4513 /* FCoE traffic class uses FCOE jumbo frames */
4514 if ((dev
->features
& NETIF_F_FCOE_MTU
) &&
4515 (tc
< IXGBE_FCOE_JUMBO_FRAME_SIZE
) &&
4516 (pb
== netdev_get_prio_tc_map(dev
, adapter
->fcoe
.up
)))
4517 tc
= IXGBE_FCOE_JUMBO_FRAME_SIZE
;
4520 /* Calculate delay value for device */
4521 switch (hw
->mac
.type
) {
4522 case ixgbe_mac_X540
:
4523 case ixgbe_mac_X550
:
4524 case ixgbe_mac_X550EM_x
:
4525 dv_id
= IXGBE_LOW_DV_X540(tc
);
4528 dv_id
= IXGBE_LOW_DV(tc
);
4532 /* Delay value is calculated in bit times convert to KB */
4533 return IXGBE_BT2KB(dv_id
);
4537 * ixgbe_pbthresh_setup - calculate and setup high low water marks
4539 static void ixgbe_pbthresh_setup(struct ixgbe_adapter
*adapter
)
4541 struct ixgbe_hw
*hw
= &adapter
->hw
;
4542 int num_tc
= netdev_get_num_tc(adapter
->netdev
);
4548 for (i
= 0; i
< num_tc
; i
++) {
4549 hw
->fc
.high_water
[i
] = ixgbe_hpbthresh(adapter
, i
);
4550 hw
->fc
.low_water
[i
] = ixgbe_lpbthresh(adapter
, i
);
4552 /* Low water marks must not be larger than high water marks */
4553 if (hw
->fc
.low_water
[i
] > hw
->fc
.high_water
[i
])
4554 hw
->fc
.low_water
[i
] = 0;
4557 for (; i
< MAX_TRAFFIC_CLASS
; i
++)
4558 hw
->fc
.high_water
[i
] = 0;
4561 static void ixgbe_configure_pb(struct ixgbe_adapter
*adapter
)
4563 struct ixgbe_hw
*hw
= &adapter
->hw
;
4565 u8 tc
= netdev_get_num_tc(adapter
->netdev
);
4567 if (adapter
->flags
& IXGBE_FLAG_FDIR_HASH_CAPABLE
||
4568 adapter
->flags
& IXGBE_FLAG_FDIR_PERFECT_CAPABLE
)
4569 hdrm
= 32 << adapter
->fdir_pballoc
;
4573 hw
->mac
.ops
.set_rxpba(hw
, tc
, hdrm
, PBA_STRATEGY_EQUAL
);
4574 ixgbe_pbthresh_setup(adapter
);
4577 static void ixgbe_fdir_filter_restore(struct ixgbe_adapter
*adapter
)
4579 struct ixgbe_hw
*hw
= &adapter
->hw
;
4580 struct hlist_node
*node2
;
4581 struct ixgbe_fdir_filter
*filter
;
4583 spin_lock(&adapter
->fdir_perfect_lock
);
4585 if (!hlist_empty(&adapter
->fdir_filter_list
))
4586 ixgbe_fdir_set_input_mask_82599(hw
, &adapter
->fdir_mask
);
4588 hlist_for_each_entry_safe(filter
, node2
,
4589 &adapter
->fdir_filter_list
, fdir_node
) {
4590 ixgbe_fdir_write_perfect_filter_82599(hw
,
4593 (filter
->action
== IXGBE_FDIR_DROP_QUEUE
) ?
4594 IXGBE_FDIR_DROP_QUEUE
:
4595 adapter
->rx_ring
[filter
->action
]->reg_idx
);
4598 spin_unlock(&adapter
->fdir_perfect_lock
);
4601 static void ixgbe_macvlan_set_rx_mode(struct net_device
*dev
, unsigned int pool
,
4602 struct ixgbe_adapter
*adapter
)
4604 struct ixgbe_hw
*hw
= &adapter
->hw
;
4607 /* No unicast promiscuous support for VMDQ devices. */
4608 vmolr
= IXGBE_READ_REG(hw
, IXGBE_VMOLR(pool
));
4609 vmolr
|= (IXGBE_VMOLR_ROMPE
| IXGBE_VMOLR_BAM
| IXGBE_VMOLR_AUPE
);
4611 /* clear the affected bit */
4612 vmolr
&= ~IXGBE_VMOLR_MPE
;
4614 if (dev
->flags
& IFF_ALLMULTI
) {
4615 vmolr
|= IXGBE_VMOLR_MPE
;
4617 vmolr
|= IXGBE_VMOLR_ROMPE
;
4618 hw
->mac
.ops
.update_mc_addr_list(hw
, dev
);
4620 ixgbe_write_uc_addr_list(adapter
->netdev
, pool
);
4621 IXGBE_WRITE_REG(hw
, IXGBE_VMOLR(pool
), vmolr
);
4624 static void ixgbe_fwd_psrtype(struct ixgbe_fwd_adapter
*vadapter
)
4626 struct ixgbe_adapter
*adapter
= vadapter
->real_adapter
;
4627 int rss_i
= adapter
->num_rx_queues_per_pool
;
4628 struct ixgbe_hw
*hw
= &adapter
->hw
;
4629 u16 pool
= vadapter
->pool
;
4630 u32 psrtype
= IXGBE_PSRTYPE_TCPHDR
|
4631 IXGBE_PSRTYPE_UDPHDR
|
4632 IXGBE_PSRTYPE_IPV4HDR
|
4633 IXGBE_PSRTYPE_L2HDR
|
4634 IXGBE_PSRTYPE_IPV6HDR
;
4636 if (hw
->mac
.type
== ixgbe_mac_82598EB
)
4644 IXGBE_WRITE_REG(hw
, IXGBE_PSRTYPE(VMDQ_P(pool
)), psrtype
);
4648 * ixgbe_clean_rx_ring - Free Rx Buffers per Queue
4649 * @rx_ring: ring to free buffers from
4651 static void ixgbe_clean_rx_ring(struct ixgbe_ring
*rx_ring
)
4653 struct device
*dev
= rx_ring
->dev
;
4657 /* ring already cleared, nothing to do */
4658 if (!rx_ring
->rx_buffer_info
)
4661 /* Free all the Rx ring sk_buffs */
4662 for (i
= 0; i
< rx_ring
->count
; i
++) {
4663 struct ixgbe_rx_buffer
*rx_buffer
= &rx_ring
->rx_buffer_info
[i
];
4665 if (rx_buffer
->skb
) {
4666 struct sk_buff
*skb
= rx_buffer
->skb
;
4667 if (IXGBE_CB(skb
)->page_released
)
4670 ixgbe_rx_bufsz(rx_ring
),
4673 rx_buffer
->skb
= NULL
;
4676 if (!rx_buffer
->page
)
4679 dma_unmap_page(dev
, rx_buffer
->dma
,
4680 ixgbe_rx_pg_size(rx_ring
), DMA_FROM_DEVICE
);
4681 __free_pages(rx_buffer
->page
, ixgbe_rx_pg_order(rx_ring
));
4683 rx_buffer
->page
= NULL
;
4686 size
= sizeof(struct ixgbe_rx_buffer
) * rx_ring
->count
;
4687 memset(rx_ring
->rx_buffer_info
, 0, size
);
4689 /* Zero out the descriptor ring */
4690 memset(rx_ring
->desc
, 0, rx_ring
->size
);
4692 rx_ring
->next_to_alloc
= 0;
4693 rx_ring
->next_to_clean
= 0;
4694 rx_ring
->next_to_use
= 0;
4697 static void ixgbe_disable_fwd_ring(struct ixgbe_fwd_adapter
*vadapter
,
4698 struct ixgbe_ring
*rx_ring
)
4700 struct ixgbe_adapter
*adapter
= vadapter
->real_adapter
;
4701 int index
= rx_ring
->queue_index
+ vadapter
->rx_base_queue
;
4703 /* shutdown specific queue receive and wait for dma to settle */
4704 ixgbe_disable_rx_queue(adapter
, rx_ring
);
4705 usleep_range(10000, 20000);
4706 ixgbe_irq_disable_queues(adapter
, ((u64
)1 << index
));
4707 ixgbe_clean_rx_ring(rx_ring
);
4708 rx_ring
->l2_accel_priv
= NULL
;
4711 static int ixgbe_fwd_ring_down(struct net_device
*vdev
,
4712 struct ixgbe_fwd_adapter
*accel
)
4714 struct ixgbe_adapter
*adapter
= accel
->real_adapter
;
4715 unsigned int rxbase
= accel
->rx_base_queue
;
4716 unsigned int txbase
= accel
->tx_base_queue
;
4719 netif_tx_stop_all_queues(vdev
);
4721 for (i
= 0; i
< adapter
->num_rx_queues_per_pool
; i
++) {
4722 ixgbe_disable_fwd_ring(accel
, adapter
->rx_ring
[rxbase
+ i
]);
4723 adapter
->rx_ring
[rxbase
+ i
]->netdev
= adapter
->netdev
;
4726 for (i
= 0; i
< adapter
->num_rx_queues_per_pool
; i
++) {
4727 adapter
->tx_ring
[txbase
+ i
]->l2_accel_priv
= NULL
;
4728 adapter
->tx_ring
[txbase
+ i
]->netdev
= adapter
->netdev
;
4735 static int ixgbe_fwd_ring_up(struct net_device
*vdev
,
4736 struct ixgbe_fwd_adapter
*accel
)
4738 struct ixgbe_adapter
*adapter
= accel
->real_adapter
;
4739 unsigned int rxbase
, txbase
, queues
;
4740 int i
, baseq
, err
= 0;
4742 if (!test_bit(accel
->pool
, &adapter
->fwd_bitmask
))
4745 baseq
= accel
->pool
* adapter
->num_rx_queues_per_pool
;
4746 netdev_dbg(vdev
, "pool %i:%i queues %i:%i VSI bitmask %lx\n",
4747 accel
->pool
, adapter
->num_rx_pools
,
4748 baseq
, baseq
+ adapter
->num_rx_queues_per_pool
,
4749 adapter
->fwd_bitmask
);
4751 accel
->netdev
= vdev
;
4752 accel
->rx_base_queue
= rxbase
= baseq
;
4753 accel
->tx_base_queue
= txbase
= baseq
;
4755 for (i
= 0; i
< adapter
->num_rx_queues_per_pool
; i
++)
4756 ixgbe_disable_fwd_ring(accel
, adapter
->rx_ring
[rxbase
+ i
]);
4758 for (i
= 0; i
< adapter
->num_rx_queues_per_pool
; i
++) {
4759 adapter
->rx_ring
[rxbase
+ i
]->netdev
= vdev
;
4760 adapter
->rx_ring
[rxbase
+ i
]->l2_accel_priv
= accel
;
4761 ixgbe_configure_rx_ring(adapter
, adapter
->rx_ring
[rxbase
+ i
]);
4764 for (i
= 0; i
< adapter
->num_rx_queues_per_pool
; i
++) {
4765 adapter
->tx_ring
[txbase
+ i
]->netdev
= vdev
;
4766 adapter
->tx_ring
[txbase
+ i
]->l2_accel_priv
= accel
;
4769 queues
= min_t(unsigned int,
4770 adapter
->num_rx_queues_per_pool
, vdev
->num_tx_queues
);
4771 err
= netif_set_real_num_tx_queues(vdev
, queues
);
4775 err
= netif_set_real_num_rx_queues(vdev
, queues
);
4779 if (is_valid_ether_addr(vdev
->dev_addr
))
4780 ixgbe_add_mac_filter(adapter
, vdev
->dev_addr
, accel
->pool
);
4782 ixgbe_fwd_psrtype(accel
);
4783 ixgbe_macvlan_set_rx_mode(vdev
, accel
->pool
, adapter
);
4786 ixgbe_fwd_ring_down(vdev
, accel
);
4790 static void ixgbe_configure_dfwd(struct ixgbe_adapter
*adapter
)
4792 struct net_device
*upper
;
4793 struct list_head
*iter
;
4796 netdev_for_each_all_upper_dev_rcu(adapter
->netdev
, upper
, iter
) {
4797 if (netif_is_macvlan(upper
)) {
4798 struct macvlan_dev
*dfwd
= netdev_priv(upper
);
4799 struct ixgbe_fwd_adapter
*vadapter
= dfwd
->fwd_priv
;
4801 if (dfwd
->fwd_priv
) {
4802 err
= ixgbe_fwd_ring_up(upper
, vadapter
);
4810 static void ixgbe_configure(struct ixgbe_adapter
*adapter
)
4812 struct ixgbe_hw
*hw
= &adapter
->hw
;
4814 ixgbe_configure_pb(adapter
);
4815 #ifdef CONFIG_IXGBE_DCB
4816 ixgbe_configure_dcb(adapter
);
4819 * We must restore virtualization before VLANs or else
4820 * the VLVF registers will not be populated
4822 ixgbe_configure_virtualization(adapter
);
4824 ixgbe_set_rx_mode(adapter
->netdev
);
4825 ixgbe_restore_vlan(adapter
);
4827 switch (hw
->mac
.type
) {
4828 case ixgbe_mac_82599EB
:
4829 case ixgbe_mac_X540
:
4830 hw
->mac
.ops
.disable_rx_buff(hw
);
4836 if (adapter
->flags
& IXGBE_FLAG_FDIR_HASH_CAPABLE
) {
4837 ixgbe_init_fdir_signature_82599(&adapter
->hw
,
4838 adapter
->fdir_pballoc
);
4839 } else if (adapter
->flags
& IXGBE_FLAG_FDIR_PERFECT_CAPABLE
) {
4840 ixgbe_init_fdir_perfect_82599(&adapter
->hw
,
4841 adapter
->fdir_pballoc
);
4842 ixgbe_fdir_filter_restore(adapter
);
4845 switch (hw
->mac
.type
) {
4846 case ixgbe_mac_82599EB
:
4847 case ixgbe_mac_X540
:
4848 hw
->mac
.ops
.enable_rx_buff(hw
);
4854 #ifdef CONFIG_IXGBE_DCA
4856 if (adapter
->flags
& IXGBE_FLAG_DCA_CAPABLE
)
4857 ixgbe_setup_dca(adapter
);
4858 #endif /* CONFIG_IXGBE_DCA */
4861 /* configure FCoE L2 filters, redirection table, and Rx control */
4862 ixgbe_configure_fcoe(adapter
);
4864 #endif /* IXGBE_FCOE */
4865 ixgbe_configure_tx(adapter
);
4866 ixgbe_configure_rx(adapter
);
4867 ixgbe_configure_dfwd(adapter
);
4871 * ixgbe_sfp_link_config - set up SFP+ link
4872 * @adapter: pointer to private adapter struct
4874 static void ixgbe_sfp_link_config(struct ixgbe_adapter
*adapter
)
4877 * We are assuming the worst case scenario here, and that
4878 * is that an SFP was inserted/removed after the reset
4879 * but before SFP detection was enabled. As such the best
4880 * solution is to just start searching as soon as we start
4882 if (adapter
->hw
.mac
.type
== ixgbe_mac_82598EB
)
4883 adapter
->flags2
|= IXGBE_FLAG2_SEARCH_FOR_SFP
;
4885 adapter
->flags2
|= IXGBE_FLAG2_SFP_NEEDS_RESET
;
4886 adapter
->sfp_poll_time
= 0;
4890 * ixgbe_non_sfp_link_config - set up non-SFP+ link
4891 * @hw: pointer to private hardware struct
4893 * Returns 0 on success, negative on failure
4895 static int ixgbe_non_sfp_link_config(struct ixgbe_hw
*hw
)
4898 bool autoneg
, link_up
= false;
4899 int ret
= IXGBE_ERR_LINK_SETUP
;
4901 if (hw
->mac
.ops
.check_link
)
4902 ret
= hw
->mac
.ops
.check_link(hw
, &speed
, &link_up
, false);
4907 speed
= hw
->phy
.autoneg_advertised
;
4908 if ((!speed
) && (hw
->mac
.ops
.get_link_capabilities
))
4909 ret
= hw
->mac
.ops
.get_link_capabilities(hw
, &speed
,
4914 if (hw
->mac
.ops
.setup_link
)
4915 ret
= hw
->mac
.ops
.setup_link(hw
, speed
, link_up
);
4920 static void ixgbe_setup_gpie(struct ixgbe_adapter
*adapter
)
4922 struct ixgbe_hw
*hw
= &adapter
->hw
;
4925 if (adapter
->flags
& IXGBE_FLAG_MSIX_ENABLED
) {
4926 gpie
= IXGBE_GPIE_MSIX_MODE
| IXGBE_GPIE_PBA_SUPPORT
|
4928 gpie
|= IXGBE_GPIE_EIAME
;
4930 * use EIAM to auto-mask when MSI-X interrupt is asserted
4931 * this saves a register write for every interrupt
4933 switch (hw
->mac
.type
) {
4934 case ixgbe_mac_82598EB
:
4935 IXGBE_WRITE_REG(hw
, IXGBE_EIAM
, IXGBE_EICS_RTX_QUEUE
);
4937 case ixgbe_mac_82599EB
:
4938 case ixgbe_mac_X540
:
4939 case ixgbe_mac_X550
:
4940 case ixgbe_mac_X550EM_x
:
4942 IXGBE_WRITE_REG(hw
, IXGBE_EIAM_EX(0), 0xFFFFFFFF);
4943 IXGBE_WRITE_REG(hw
, IXGBE_EIAM_EX(1), 0xFFFFFFFF);
4947 /* legacy interrupts, use EIAM to auto-mask when reading EICR,
4948 * specifically only auto mask tx and rx interrupts */
4949 IXGBE_WRITE_REG(hw
, IXGBE_EIAM
, IXGBE_EICS_RTX_QUEUE
);
4952 /* XXX: to interrupt immediately for EICS writes, enable this */
4953 /* gpie |= IXGBE_GPIE_EIMEN; */
4955 if (adapter
->flags
& IXGBE_FLAG_SRIOV_ENABLED
) {
4956 gpie
&= ~IXGBE_GPIE_VTMODE_MASK
;
4958 switch (adapter
->ring_feature
[RING_F_VMDQ
].mask
) {
4959 case IXGBE_82599_VMDQ_8Q_MASK
:
4960 gpie
|= IXGBE_GPIE_VTMODE_16
;
4962 case IXGBE_82599_VMDQ_4Q_MASK
:
4963 gpie
|= IXGBE_GPIE_VTMODE_32
;
4966 gpie
|= IXGBE_GPIE_VTMODE_64
;
4971 /* Enable Thermal over heat sensor interrupt */
4972 if (adapter
->flags2
& IXGBE_FLAG2_TEMP_SENSOR_CAPABLE
) {
4973 switch (adapter
->hw
.mac
.type
) {
4974 case ixgbe_mac_82599EB
:
4975 gpie
|= IXGBE_SDP0_GPIEN_8259X
;
4982 /* Enable fan failure interrupt */
4983 if (adapter
->flags
& IXGBE_FLAG_FAN_FAIL_CAPABLE
)
4984 gpie
|= IXGBE_SDP1_GPIEN(hw
);
4986 switch (hw
->mac
.type
) {
4987 case ixgbe_mac_82599EB
:
4988 gpie
|= IXGBE_SDP1_GPIEN_8259X
| IXGBE_SDP2_GPIEN_8259X
;
4990 case ixgbe_mac_X550EM_x
:
4991 gpie
|= IXGBE_SDP0_GPIEN_X540
;
4997 IXGBE_WRITE_REG(hw
, IXGBE_GPIE
, gpie
);
5000 static void ixgbe_up_complete(struct ixgbe_adapter
*adapter
)
5002 struct ixgbe_hw
*hw
= &adapter
->hw
;
5006 ixgbe_get_hw_control(adapter
);
5007 ixgbe_setup_gpie(adapter
);
5009 if (adapter
->flags
& IXGBE_FLAG_MSIX_ENABLED
)
5010 ixgbe_configure_msix(adapter
);
5012 ixgbe_configure_msi_and_legacy(adapter
);
5014 /* enable the optics for 82599 SFP+ fiber */
5015 if (hw
->mac
.ops
.enable_tx_laser
)
5016 hw
->mac
.ops
.enable_tx_laser(hw
);
5018 if (hw
->phy
.ops
.set_phy_power
)
5019 hw
->phy
.ops
.set_phy_power(hw
, true);
5021 smp_mb__before_atomic();
5022 clear_bit(__IXGBE_DOWN
, &adapter
->state
);
5023 ixgbe_napi_enable_all(adapter
);
5025 if (ixgbe_is_sfp(hw
)) {
5026 ixgbe_sfp_link_config(adapter
);
5028 err
= ixgbe_non_sfp_link_config(hw
);
5030 e_err(probe
, "link_config FAILED %d\n", err
);
5033 /* clear any pending interrupts, may auto mask */
5034 IXGBE_READ_REG(hw
, IXGBE_EICR
);
5035 ixgbe_irq_enable(adapter
, true, true);
5038 * If this adapter has a fan, check to see if we had a failure
5039 * before we enabled the interrupt.
5041 if (adapter
->flags
& IXGBE_FLAG_FAN_FAIL_CAPABLE
) {
5042 u32 esdp
= IXGBE_READ_REG(hw
, IXGBE_ESDP
);
5043 if (esdp
& IXGBE_ESDP_SDP1
)
5044 e_crit(drv
, "Fan has stopped, replace the adapter\n");
5047 /* bring the link up in the watchdog, this could race with our first
5048 * link up interrupt but shouldn't be a problem */
5049 adapter
->flags
|= IXGBE_FLAG_NEED_LINK_UPDATE
;
5050 adapter
->link_check_timeout
= jiffies
;
5051 mod_timer(&adapter
->service_timer
, jiffies
);
5053 /* Set PF Reset Done bit so PF/VF Mail Ops can work */
5054 ctrl_ext
= IXGBE_READ_REG(hw
, IXGBE_CTRL_EXT
);
5055 ctrl_ext
|= IXGBE_CTRL_EXT_PFRSTD
;
5056 IXGBE_WRITE_REG(hw
, IXGBE_CTRL_EXT
, ctrl_ext
);
5059 void ixgbe_reinit_locked(struct ixgbe_adapter
*adapter
)
5061 WARN_ON(in_interrupt());
5062 /* put off any impending NetWatchDogTimeout */
5063 adapter
->netdev
->trans_start
= jiffies
;
5065 while (test_and_set_bit(__IXGBE_RESETTING
, &adapter
->state
))
5066 usleep_range(1000, 2000);
5067 ixgbe_down(adapter
);
5069 * If SR-IOV enabled then wait a bit before bringing the adapter
5070 * back up to give the VFs time to respond to the reset. The
5071 * two second wait is based upon the watchdog timer cycle in
5074 if (adapter
->flags
& IXGBE_FLAG_SRIOV_ENABLED
)
5077 clear_bit(__IXGBE_RESETTING
, &adapter
->state
);
5080 void ixgbe_up(struct ixgbe_adapter
*adapter
)
5082 /* hardware has been reset, we need to reload some things */
5083 ixgbe_configure(adapter
);
5085 ixgbe_up_complete(adapter
);
5088 void ixgbe_reset(struct ixgbe_adapter
*adapter
)
5090 struct ixgbe_hw
*hw
= &adapter
->hw
;
5091 struct net_device
*netdev
= adapter
->netdev
;
5094 if (ixgbe_removed(hw
->hw_addr
))
5096 /* lock SFP init bit to prevent race conditions with the watchdog */
5097 while (test_and_set_bit(__IXGBE_IN_SFP_INIT
, &adapter
->state
))
5098 usleep_range(1000, 2000);
5100 /* clear all SFP and link config related flags while holding SFP_INIT */
5101 adapter
->flags2
&= ~(IXGBE_FLAG2_SEARCH_FOR_SFP
|
5102 IXGBE_FLAG2_SFP_NEEDS_RESET
);
5103 adapter
->flags
&= ~IXGBE_FLAG_NEED_LINK_CONFIG
;
5105 err
= hw
->mac
.ops
.init_hw(hw
);
5108 case IXGBE_ERR_SFP_NOT_PRESENT
:
5109 case IXGBE_ERR_SFP_NOT_SUPPORTED
:
5111 case IXGBE_ERR_MASTER_REQUESTS_PENDING
:
5112 e_dev_err("master disable timed out\n");
5114 case IXGBE_ERR_EEPROM_VERSION
:
5115 /* We are running on a pre-production device, log a warning */
5116 e_dev_warn("This device is a pre-production adapter/LOM. "
5117 "Please be aware there may be issues associated with "
5118 "your hardware. If you are experiencing problems "
5119 "please contact your Intel or hardware "
5120 "representative who provided you with this "
5124 e_dev_err("Hardware Error: %d\n", err
);
5127 clear_bit(__IXGBE_IN_SFP_INIT
, &adapter
->state
);
5129 /* flush entries out of MAC table */
5130 ixgbe_flush_sw_mac_table(adapter
);
5131 __dev_uc_unsync(netdev
, NULL
);
5133 /* do not flush user set addresses */
5134 ixgbe_mac_set_default_filter(adapter
);
5136 /* update SAN MAC vmdq pool selection */
5137 if (hw
->mac
.san_mac_rar_index
)
5138 hw
->mac
.ops
.set_vmdq_san_mac(hw
, VMDQ_P(0));
5140 if (test_bit(__IXGBE_PTP_RUNNING
, &adapter
->state
))
5141 ixgbe_ptp_reset(adapter
);
5143 if (hw
->phy
.ops
.set_phy_power
) {
5144 if (!netif_running(adapter
->netdev
) && !adapter
->wol
)
5145 hw
->phy
.ops
.set_phy_power(hw
, false);
5147 hw
->phy
.ops
.set_phy_power(hw
, true);
5152 * ixgbe_clean_tx_ring - Free Tx Buffers
5153 * @tx_ring: ring to be cleaned
5155 static void ixgbe_clean_tx_ring(struct ixgbe_ring
*tx_ring
)
5157 struct ixgbe_tx_buffer
*tx_buffer_info
;
5161 /* ring already cleared, nothing to do */
5162 if (!tx_ring
->tx_buffer_info
)
5165 /* Free all the Tx ring sk_buffs */
5166 for (i
= 0; i
< tx_ring
->count
; i
++) {
5167 tx_buffer_info
= &tx_ring
->tx_buffer_info
[i
];
5168 ixgbe_unmap_and_free_tx_resource(tx_ring
, tx_buffer_info
);
5171 netdev_tx_reset_queue(txring_txq(tx_ring
));
5173 size
= sizeof(struct ixgbe_tx_buffer
) * tx_ring
->count
;
5174 memset(tx_ring
->tx_buffer_info
, 0, size
);
5176 /* Zero out the descriptor ring */
5177 memset(tx_ring
->desc
, 0, tx_ring
->size
);
5179 tx_ring
->next_to_use
= 0;
5180 tx_ring
->next_to_clean
= 0;
5184 * ixgbe_clean_all_rx_rings - Free Rx Buffers for all queues
5185 * @adapter: board private structure
5187 static void ixgbe_clean_all_rx_rings(struct ixgbe_adapter
*adapter
)
5191 for (i
= 0; i
< adapter
->num_rx_queues
; i
++)
5192 ixgbe_clean_rx_ring(adapter
->rx_ring
[i
]);
5196 * ixgbe_clean_all_tx_rings - Free Tx Buffers for all queues
5197 * @adapter: board private structure
5199 static void ixgbe_clean_all_tx_rings(struct ixgbe_adapter
*adapter
)
5203 for (i
= 0; i
< adapter
->num_tx_queues
; i
++)
5204 ixgbe_clean_tx_ring(adapter
->tx_ring
[i
]);
5207 static void ixgbe_fdir_filter_exit(struct ixgbe_adapter
*adapter
)
5209 struct hlist_node
*node2
;
5210 struct ixgbe_fdir_filter
*filter
;
5212 spin_lock(&adapter
->fdir_perfect_lock
);
5214 hlist_for_each_entry_safe(filter
, node2
,
5215 &adapter
->fdir_filter_list
, fdir_node
) {
5216 hlist_del(&filter
->fdir_node
);
5219 adapter
->fdir_filter_count
= 0;
5221 spin_unlock(&adapter
->fdir_perfect_lock
);
5224 void ixgbe_down(struct ixgbe_adapter
*adapter
)
5226 struct net_device
*netdev
= adapter
->netdev
;
5227 struct ixgbe_hw
*hw
= &adapter
->hw
;
5228 struct net_device
*upper
;
5229 struct list_head
*iter
;
5232 /* signal that we are down to the interrupt handler */
5233 if (test_and_set_bit(__IXGBE_DOWN
, &adapter
->state
))
5234 return; /* do nothing if already down */
5236 /* disable receives */
5237 hw
->mac
.ops
.disable_rx(hw
);
5239 /* disable all enabled rx queues */
5240 for (i
= 0; i
< adapter
->num_rx_queues
; i
++)
5241 /* this call also flushes the previous write */
5242 ixgbe_disable_rx_queue(adapter
, adapter
->rx_ring
[i
]);
5244 usleep_range(10000, 20000);
5246 netif_tx_stop_all_queues(netdev
);
5248 /* call carrier off first to avoid false dev_watchdog timeouts */
5249 netif_carrier_off(netdev
);
5250 netif_tx_disable(netdev
);
5252 /* disable any upper devices */
5253 netdev_for_each_all_upper_dev_rcu(adapter
->netdev
, upper
, iter
) {
5254 if (netif_is_macvlan(upper
)) {
5255 struct macvlan_dev
*vlan
= netdev_priv(upper
);
5257 if (vlan
->fwd_priv
) {
5258 netif_tx_stop_all_queues(upper
);
5259 netif_carrier_off(upper
);
5260 netif_tx_disable(upper
);
5265 ixgbe_irq_disable(adapter
);
5267 ixgbe_napi_disable_all(adapter
);
5269 adapter
->flags2
&= ~(IXGBE_FLAG2_FDIR_REQUIRES_REINIT
|
5270 IXGBE_FLAG2_RESET_REQUESTED
);
5271 adapter
->flags
&= ~IXGBE_FLAG_NEED_LINK_UPDATE
;
5273 del_timer_sync(&adapter
->service_timer
);
5275 if (adapter
->num_vfs
) {
5276 /* Clear EITR Select mapping */
5277 IXGBE_WRITE_REG(&adapter
->hw
, IXGBE_EITRSEL
, 0);
5279 /* Mark all the VFs as inactive */
5280 for (i
= 0 ; i
< adapter
->num_vfs
; i
++)
5281 adapter
->vfinfo
[i
].clear_to_send
= false;
5283 /* ping all the active vfs to let them know we are going down */
5284 ixgbe_ping_all_vfs(adapter
);
5286 /* Disable all VFTE/VFRE TX/RX */
5287 ixgbe_disable_tx_rx(adapter
);
5290 /* disable transmits in the hardware now that interrupts are off */
5291 for (i
= 0; i
< adapter
->num_tx_queues
; i
++) {
5292 u8 reg_idx
= adapter
->tx_ring
[i
]->reg_idx
;
5293 IXGBE_WRITE_REG(hw
, IXGBE_TXDCTL(reg_idx
), IXGBE_TXDCTL_SWFLSH
);
5296 /* Disable the Tx DMA engine on 82599 and later MAC */
5297 switch (hw
->mac
.type
) {
5298 case ixgbe_mac_82599EB
:
5299 case ixgbe_mac_X540
:
5300 case ixgbe_mac_X550
:
5301 case ixgbe_mac_X550EM_x
:
5302 IXGBE_WRITE_REG(hw
, IXGBE_DMATXCTL
,
5303 (IXGBE_READ_REG(hw
, IXGBE_DMATXCTL
) &
5304 ~IXGBE_DMATXCTL_TE
));
5310 if (!pci_channel_offline(adapter
->pdev
))
5311 ixgbe_reset(adapter
);
5313 /* power down the optics for 82599 SFP+ fiber */
5314 if (hw
->mac
.ops
.disable_tx_laser
)
5315 hw
->mac
.ops
.disable_tx_laser(hw
);
5317 ixgbe_clean_all_tx_rings(adapter
);
5318 ixgbe_clean_all_rx_rings(adapter
);
5322 * ixgbe_tx_timeout - Respond to a Tx Hang
5323 * @netdev: network interface device structure
5325 static void ixgbe_tx_timeout(struct net_device
*netdev
)
5327 struct ixgbe_adapter
*adapter
= netdev_priv(netdev
);
5329 /* Do the reset outside of interrupt context */
5330 ixgbe_tx_timeout_reset(adapter
);
5334 * ixgbe_sw_init - Initialize general software structures (struct ixgbe_adapter)
5335 * @adapter: board private structure to initialize
5337 * ixgbe_sw_init initializes the Adapter private data structure.
5338 * Fields are initialized based on PCI device information and
5339 * OS network device settings (MTU size).
5341 static int ixgbe_sw_init(struct ixgbe_adapter
*adapter
)
5343 struct ixgbe_hw
*hw
= &adapter
->hw
;
5344 struct pci_dev
*pdev
= adapter
->pdev
;
5345 unsigned int rss
, fdir
;
5347 #ifdef CONFIG_IXGBE_DCB
5349 struct tc_configuration
*tc
;
5352 /* PCI config space info */
5354 hw
->vendor_id
= pdev
->vendor
;
5355 hw
->device_id
= pdev
->device
;
5356 hw
->revision_id
= pdev
->revision
;
5357 hw
->subsystem_vendor_id
= pdev
->subsystem_vendor
;
5358 hw
->subsystem_device_id
= pdev
->subsystem_device
;
5360 /* Set common capability flags and settings */
5361 rss
= min_t(int, ixgbe_max_rss_indices(adapter
), num_online_cpus());
5362 adapter
->ring_feature
[RING_F_RSS
].limit
= rss
;
5363 adapter
->flags2
|= IXGBE_FLAG2_RSC_CAPABLE
;
5364 adapter
->max_q_vectors
= MAX_Q_VECTORS_82599
;
5365 adapter
->atr_sample_rate
= 20;
5366 fdir
= min_t(int, IXGBE_MAX_FDIR_INDICES
, num_online_cpus());
5367 adapter
->ring_feature
[RING_F_FDIR
].limit
= fdir
;
5368 adapter
->fdir_pballoc
= IXGBE_FDIR_PBALLOC_64K
;
5369 #ifdef CONFIG_IXGBE_DCA
5370 adapter
->flags
|= IXGBE_FLAG_DCA_CAPABLE
;
5373 adapter
->flags
|= IXGBE_FLAG_FCOE_CAPABLE
;
5374 adapter
->flags
&= ~IXGBE_FLAG_FCOE_ENABLED
;
5375 #ifdef CONFIG_IXGBE_DCB
5376 /* Default traffic class to use for FCoE */
5377 adapter
->fcoe
.up
= IXGBE_FCOE_DEFTC
;
5378 #endif /* CONFIG_IXGBE_DCB */
5379 #endif /* IXGBE_FCOE */
5381 adapter
->mac_table
= kzalloc(sizeof(struct ixgbe_mac_addr
) *
5382 hw
->mac
.num_rar_entries
,
5385 /* Set MAC specific capability flags and exceptions */
5386 switch (hw
->mac
.type
) {
5387 case ixgbe_mac_82598EB
:
5388 adapter
->flags2
&= ~IXGBE_FLAG2_RSC_CAPABLE
;
5390 if (hw
->device_id
== IXGBE_DEV_ID_82598AT
)
5391 adapter
->flags
|= IXGBE_FLAG_FAN_FAIL_CAPABLE
;
5393 adapter
->max_q_vectors
= MAX_Q_VECTORS_82598
;
5394 adapter
->ring_feature
[RING_F_FDIR
].limit
= 0;
5395 adapter
->atr_sample_rate
= 0;
5396 adapter
->fdir_pballoc
= 0;
5398 adapter
->flags
&= ~IXGBE_FLAG_FCOE_CAPABLE
;
5399 adapter
->flags
&= ~IXGBE_FLAG_FCOE_ENABLED
;
5400 #ifdef CONFIG_IXGBE_DCB
5401 adapter
->fcoe
.up
= 0;
5402 #endif /* IXGBE_DCB */
5403 #endif /* IXGBE_FCOE */
5405 case ixgbe_mac_82599EB
:
5406 if (hw
->device_id
== IXGBE_DEV_ID_82599_T3_LOM
)
5407 adapter
->flags2
|= IXGBE_FLAG2_TEMP_SENSOR_CAPABLE
;
5409 case ixgbe_mac_X540
:
5410 fwsm
= IXGBE_READ_REG(hw
, IXGBE_FWSM(hw
));
5411 if (fwsm
& IXGBE_FWSM_TS_ENABLED
)
5412 adapter
->flags2
|= IXGBE_FLAG2_TEMP_SENSOR_CAPABLE
;
5414 case ixgbe_mac_X550EM_x
:
5415 case ixgbe_mac_X550
:
5416 #ifdef CONFIG_IXGBE_DCA
5417 adapter
->flags
&= ~IXGBE_FLAG_DCA_CAPABLE
;
5419 #ifdef CONFIG_IXGBE_VXLAN
5420 adapter
->flags
|= IXGBE_FLAG_VXLAN_OFFLOAD_CAPABLE
;
5428 /* FCoE support exists, always init the FCoE lock */
5429 spin_lock_init(&adapter
->fcoe
.lock
);
5432 /* n-tuple support exists, always init our spinlock */
5433 spin_lock_init(&adapter
->fdir_perfect_lock
);
5435 #ifdef CONFIG_IXGBE_DCB
5436 switch (hw
->mac
.type
) {
5437 case ixgbe_mac_X540
:
5438 case ixgbe_mac_X550
:
5439 case ixgbe_mac_X550EM_x
:
5440 adapter
->dcb_cfg
.num_tcs
.pg_tcs
= X540_TRAFFIC_CLASS
;
5441 adapter
->dcb_cfg
.num_tcs
.pfc_tcs
= X540_TRAFFIC_CLASS
;
5444 adapter
->dcb_cfg
.num_tcs
.pg_tcs
= MAX_TRAFFIC_CLASS
;
5445 adapter
->dcb_cfg
.num_tcs
.pfc_tcs
= MAX_TRAFFIC_CLASS
;
5449 /* Configure DCB traffic classes */
5450 for (j
= 0; j
< MAX_TRAFFIC_CLASS
; j
++) {
5451 tc
= &adapter
->dcb_cfg
.tc_config
[j
];
5452 tc
->path
[DCB_TX_CONFIG
].bwg_id
= 0;
5453 tc
->path
[DCB_TX_CONFIG
].bwg_percent
= 12 + (j
& 1);
5454 tc
->path
[DCB_RX_CONFIG
].bwg_id
= 0;
5455 tc
->path
[DCB_RX_CONFIG
].bwg_percent
= 12 + (j
& 1);
5456 tc
->dcb_pfc
= pfc_disabled
;
5459 /* Initialize default user to priority mapping, UPx->TC0 */
5460 tc
= &adapter
->dcb_cfg
.tc_config
[0];
5461 tc
->path
[DCB_TX_CONFIG
].up_to_tc_bitmap
= 0xFF;
5462 tc
->path
[DCB_RX_CONFIG
].up_to_tc_bitmap
= 0xFF;
5464 adapter
->dcb_cfg
.bw_percentage
[DCB_TX_CONFIG
][0] = 100;
5465 adapter
->dcb_cfg
.bw_percentage
[DCB_RX_CONFIG
][0] = 100;
5466 adapter
->dcb_cfg
.pfc_mode_enable
= false;
5467 adapter
->dcb_set_bitmap
= 0x00;
5468 adapter
->dcbx_cap
= DCB_CAP_DCBX_HOST
| DCB_CAP_DCBX_VER_CEE
;
5469 memcpy(&adapter
->temp_dcb_cfg
, &adapter
->dcb_cfg
,
5470 sizeof(adapter
->temp_dcb_cfg
));
5474 /* default flow control settings */
5475 hw
->fc
.requested_mode
= ixgbe_fc_full
;
5476 hw
->fc
.current_mode
= ixgbe_fc_full
; /* init for ethtool output */
5477 ixgbe_pbthresh_setup(adapter
);
5478 hw
->fc
.pause_time
= IXGBE_DEFAULT_FCPAUSE
;
5479 hw
->fc
.send_xon
= true;
5480 hw
->fc
.disable_fc_autoneg
= ixgbe_device_supports_autoneg_fc(hw
);
5482 #ifdef CONFIG_PCI_IOV
5484 e_dev_warn("Enabling SR-IOV VFs using the max_vfs module parameter is deprecated - please use the pci sysfs interface instead.\n");
5486 /* assign number of SR-IOV VFs */
5487 if (hw
->mac
.type
!= ixgbe_mac_82598EB
) {
5488 if (max_vfs
> IXGBE_MAX_VFS_DRV_LIMIT
) {
5489 adapter
->num_vfs
= 0;
5490 e_dev_warn("max_vfs parameter out of range. Not assigning any SR-IOV VFs\n");
5492 adapter
->num_vfs
= max_vfs
;
5495 #endif /* CONFIG_PCI_IOV */
5497 /* enable itr by default in dynamic mode */
5498 adapter
->rx_itr_setting
= 1;
5499 adapter
->tx_itr_setting
= 1;
5501 /* set default ring sizes */
5502 adapter
->tx_ring_count
= IXGBE_DEFAULT_TXD
;
5503 adapter
->rx_ring_count
= IXGBE_DEFAULT_RXD
;
5505 /* set default work limits */
5506 adapter
->tx_work_limit
= IXGBE_DEFAULT_TX_WORK
;
5508 /* initialize eeprom parameters */
5509 if (ixgbe_init_eeprom_params_generic(hw
)) {
5510 e_dev_err("EEPROM initialization failed\n");
5514 /* PF holds first pool slot */
5515 set_bit(0, &adapter
->fwd_bitmask
);
5516 set_bit(__IXGBE_DOWN
, &adapter
->state
);
5522 * ixgbe_setup_tx_resources - allocate Tx resources (Descriptors)
5523 * @tx_ring: tx descriptor ring (for a specific queue) to setup
5525 * Return 0 on success, negative on failure
5527 int ixgbe_setup_tx_resources(struct ixgbe_ring
*tx_ring
)
5529 struct device
*dev
= tx_ring
->dev
;
5530 int orig_node
= dev_to_node(dev
);
5534 size
= sizeof(struct ixgbe_tx_buffer
) * tx_ring
->count
;
5536 if (tx_ring
->q_vector
)
5537 ring_node
= tx_ring
->q_vector
->numa_node
;
5539 tx_ring
->tx_buffer_info
= vzalloc_node(size
, ring_node
);
5540 if (!tx_ring
->tx_buffer_info
)
5541 tx_ring
->tx_buffer_info
= vzalloc(size
);
5542 if (!tx_ring
->tx_buffer_info
)
5545 u64_stats_init(&tx_ring
->syncp
);
5547 /* round up to nearest 4K */
5548 tx_ring
->size
= tx_ring
->count
* sizeof(union ixgbe_adv_tx_desc
);
5549 tx_ring
->size
= ALIGN(tx_ring
->size
, 4096);
5551 set_dev_node(dev
, ring_node
);
5552 tx_ring
->desc
= dma_alloc_coherent(dev
,
5556 set_dev_node(dev
, orig_node
);
5558 tx_ring
->desc
= dma_alloc_coherent(dev
, tx_ring
->size
,
5559 &tx_ring
->dma
, GFP_KERNEL
);
5563 tx_ring
->next_to_use
= 0;
5564 tx_ring
->next_to_clean
= 0;
5568 vfree(tx_ring
->tx_buffer_info
);
5569 tx_ring
->tx_buffer_info
= NULL
;
5570 dev_err(dev
, "Unable to allocate memory for the Tx descriptor ring\n");
5575 * ixgbe_setup_all_tx_resources - allocate all queues Tx resources
5576 * @adapter: board private structure
5578 * If this function returns with an error, then it's possible one or
5579 * more of the rings is populated (while the rest are not). It is the
5580 * callers duty to clean those orphaned rings.
5582 * Return 0 on success, negative on failure
5584 static int ixgbe_setup_all_tx_resources(struct ixgbe_adapter
*adapter
)
5588 for (i
= 0; i
< adapter
->num_tx_queues
; i
++) {
5589 err
= ixgbe_setup_tx_resources(adapter
->tx_ring
[i
]);
5593 e_err(probe
, "Allocation for Tx Queue %u failed\n", i
);
5599 /* rewind the index freeing the rings as we go */
5601 ixgbe_free_tx_resources(adapter
->tx_ring
[i
]);
5606 * ixgbe_setup_rx_resources - allocate Rx resources (Descriptors)
5607 * @rx_ring: rx descriptor ring (for a specific queue) to setup
5609 * Returns 0 on success, negative on failure
5611 int ixgbe_setup_rx_resources(struct ixgbe_ring
*rx_ring
)
5613 struct device
*dev
= rx_ring
->dev
;
5614 int orig_node
= dev_to_node(dev
);
5618 size
= sizeof(struct ixgbe_rx_buffer
) * rx_ring
->count
;
5620 if (rx_ring
->q_vector
)
5621 ring_node
= rx_ring
->q_vector
->numa_node
;
5623 rx_ring
->rx_buffer_info
= vzalloc_node(size
, ring_node
);
5624 if (!rx_ring
->rx_buffer_info
)
5625 rx_ring
->rx_buffer_info
= vzalloc(size
);
5626 if (!rx_ring
->rx_buffer_info
)
5629 u64_stats_init(&rx_ring
->syncp
);
5631 /* Round up to nearest 4K */
5632 rx_ring
->size
= rx_ring
->count
* sizeof(union ixgbe_adv_rx_desc
);
5633 rx_ring
->size
= ALIGN(rx_ring
->size
, 4096);
5635 set_dev_node(dev
, ring_node
);
5636 rx_ring
->desc
= dma_alloc_coherent(dev
,
5640 set_dev_node(dev
, orig_node
);
5642 rx_ring
->desc
= dma_alloc_coherent(dev
, rx_ring
->size
,
5643 &rx_ring
->dma
, GFP_KERNEL
);
5647 rx_ring
->next_to_clean
= 0;
5648 rx_ring
->next_to_use
= 0;
5652 vfree(rx_ring
->rx_buffer_info
);
5653 rx_ring
->rx_buffer_info
= NULL
;
5654 dev_err(dev
, "Unable to allocate memory for the Rx descriptor ring\n");
5659 * ixgbe_setup_all_rx_resources - allocate all queues Rx resources
5660 * @adapter: board private structure
5662 * If this function returns with an error, then it's possible one or
5663 * more of the rings is populated (while the rest are not). It is the
5664 * callers duty to clean those orphaned rings.
5666 * Return 0 on success, negative on failure
5668 static int ixgbe_setup_all_rx_resources(struct ixgbe_adapter
*adapter
)
5672 for (i
= 0; i
< adapter
->num_rx_queues
; i
++) {
5673 err
= ixgbe_setup_rx_resources(adapter
->rx_ring
[i
]);
5677 e_err(probe
, "Allocation for Rx Queue %u failed\n", i
);
5682 err
= ixgbe_setup_fcoe_ddp_resources(adapter
);
5687 /* rewind the index freeing the rings as we go */
5689 ixgbe_free_rx_resources(adapter
->rx_ring
[i
]);
5694 * ixgbe_free_tx_resources - Free Tx Resources per Queue
5695 * @tx_ring: Tx descriptor ring for a specific queue
5697 * Free all transmit software resources
5699 void ixgbe_free_tx_resources(struct ixgbe_ring
*tx_ring
)
5701 ixgbe_clean_tx_ring(tx_ring
);
5703 vfree(tx_ring
->tx_buffer_info
);
5704 tx_ring
->tx_buffer_info
= NULL
;
5706 /* if not set, then don't free */
5710 dma_free_coherent(tx_ring
->dev
, tx_ring
->size
,
5711 tx_ring
->desc
, tx_ring
->dma
);
5713 tx_ring
->desc
= NULL
;
5717 * ixgbe_free_all_tx_resources - Free Tx Resources for All Queues
5718 * @adapter: board private structure
5720 * Free all transmit software resources
5722 static void ixgbe_free_all_tx_resources(struct ixgbe_adapter
*adapter
)
5726 for (i
= 0; i
< adapter
->num_tx_queues
; i
++)
5727 if (adapter
->tx_ring
[i
]->desc
)
5728 ixgbe_free_tx_resources(adapter
->tx_ring
[i
]);
5732 * ixgbe_free_rx_resources - Free Rx Resources
5733 * @rx_ring: ring to clean the resources from
5735 * Free all receive software resources
5737 void ixgbe_free_rx_resources(struct ixgbe_ring
*rx_ring
)
5739 ixgbe_clean_rx_ring(rx_ring
);
5741 vfree(rx_ring
->rx_buffer_info
);
5742 rx_ring
->rx_buffer_info
= NULL
;
5744 /* if not set, then don't free */
5748 dma_free_coherent(rx_ring
->dev
, rx_ring
->size
,
5749 rx_ring
->desc
, rx_ring
->dma
);
5751 rx_ring
->desc
= NULL
;
5755 * ixgbe_free_all_rx_resources - Free Rx Resources for All Queues
5756 * @adapter: board private structure
5758 * Free all receive software resources
5760 static void ixgbe_free_all_rx_resources(struct ixgbe_adapter
*adapter
)
5765 ixgbe_free_fcoe_ddp_resources(adapter
);
5768 for (i
= 0; i
< adapter
->num_rx_queues
; i
++)
5769 if (adapter
->rx_ring
[i
]->desc
)
5770 ixgbe_free_rx_resources(adapter
->rx_ring
[i
]);
5774 * ixgbe_change_mtu - Change the Maximum Transfer Unit
5775 * @netdev: network interface device structure
5776 * @new_mtu: new value for maximum frame size
5778 * Returns 0 on success, negative on failure
5780 static int ixgbe_change_mtu(struct net_device
*netdev
, int new_mtu
)
5782 struct ixgbe_adapter
*adapter
= netdev_priv(netdev
);
5783 int max_frame
= new_mtu
+ ETH_HLEN
+ ETH_FCS_LEN
;
5785 /* MTU < 68 is an error and causes problems on some kernels */
5786 if ((new_mtu
< 68) || (max_frame
> IXGBE_MAX_JUMBO_FRAME_SIZE
))
5790 * For 82599EB we cannot allow legacy VFs to enable their receive
5791 * paths when MTU greater than 1500 is configured. So display a
5792 * warning that legacy VFs will be disabled.
5794 if ((adapter
->flags
& IXGBE_FLAG_SRIOV_ENABLED
) &&
5795 (adapter
->hw
.mac
.type
== ixgbe_mac_82599EB
) &&
5796 (max_frame
> (ETH_FRAME_LEN
+ ETH_FCS_LEN
)))
5797 e_warn(probe
, "Setting MTU > 1500 will disable legacy VFs\n");
5799 e_info(probe
, "changing MTU from %d to %d\n", netdev
->mtu
, new_mtu
);
5801 /* must set new MTU before calling down or up */
5802 netdev
->mtu
= new_mtu
;
5804 if (netif_running(netdev
))
5805 ixgbe_reinit_locked(adapter
);
5811 * ixgbe_open - Called when a network interface is made active
5812 * @netdev: network interface device structure
5814 * Returns 0 on success, negative value on failure
5816 * The open entry point is called when a network interface is made
5817 * active by the system (IFF_UP). At this point all resources needed
5818 * for transmit and receive operations are allocated, the interrupt
5819 * handler is registered with the OS, the watchdog timer is started,
5820 * and the stack is notified that the interface is ready.
5822 static int ixgbe_open(struct net_device
*netdev
)
5824 struct ixgbe_adapter
*adapter
= netdev_priv(netdev
);
5825 struct ixgbe_hw
*hw
= &adapter
->hw
;
5828 /* disallow open during test */
5829 if (test_bit(__IXGBE_TESTING
, &adapter
->state
))
5832 netif_carrier_off(netdev
);
5834 /* allocate transmit descriptors */
5835 err
= ixgbe_setup_all_tx_resources(adapter
);
5839 /* allocate receive descriptors */
5840 err
= ixgbe_setup_all_rx_resources(adapter
);
5844 ixgbe_configure(adapter
);
5846 err
= ixgbe_request_irq(adapter
);
5850 /* Notify the stack of the actual queue counts. */
5851 if (adapter
->num_rx_pools
> 1)
5852 queues
= adapter
->num_rx_queues_per_pool
;
5854 queues
= adapter
->num_tx_queues
;
5856 err
= netif_set_real_num_tx_queues(netdev
, queues
);
5858 goto err_set_queues
;
5860 if (adapter
->num_rx_pools
> 1 &&
5861 adapter
->num_rx_queues
> IXGBE_MAX_L2A_QUEUES
)
5862 queues
= IXGBE_MAX_L2A_QUEUES
;
5864 queues
= adapter
->num_rx_queues
;
5865 err
= netif_set_real_num_rx_queues(netdev
, queues
);
5867 goto err_set_queues
;
5869 ixgbe_ptp_init(adapter
);
5871 ixgbe_up_complete(adapter
);
5873 ixgbe_clear_vxlan_port(adapter
);
5874 #ifdef CONFIG_IXGBE_VXLAN
5875 vxlan_get_rx_port(netdev
);
5881 ixgbe_free_irq(adapter
);
5883 ixgbe_free_all_rx_resources(adapter
);
5884 if (hw
->phy
.ops
.set_phy_power
&& !adapter
->wol
)
5885 hw
->phy
.ops
.set_phy_power(&adapter
->hw
, false);
5887 ixgbe_free_all_tx_resources(adapter
);
5889 ixgbe_reset(adapter
);
5894 static void ixgbe_close_suspend(struct ixgbe_adapter
*adapter
)
5896 ixgbe_ptp_suspend(adapter
);
5898 if (adapter
->hw
.phy
.ops
.enter_lplu
) {
5899 adapter
->hw
.phy
.reset_disable
= true;
5900 ixgbe_down(adapter
);
5901 adapter
->hw
.phy
.ops
.enter_lplu(&adapter
->hw
);
5902 adapter
->hw
.phy
.reset_disable
= false;
5904 ixgbe_down(adapter
);
5907 ixgbe_free_irq(adapter
);
5909 ixgbe_free_all_tx_resources(adapter
);
5910 ixgbe_free_all_rx_resources(adapter
);
5914 * ixgbe_close - Disables a network interface
5915 * @netdev: network interface device structure
5917 * Returns 0, this is not allowed to fail
5919 * The close entry point is called when an interface is de-activated
5920 * by the OS. The hardware is still under the drivers control, but
5921 * needs to be disabled. A global MAC reset is issued to stop the
5922 * hardware, and all transmit and receive resources are freed.
5924 static int ixgbe_close(struct net_device
*netdev
)
5926 struct ixgbe_adapter
*adapter
= netdev_priv(netdev
);
5928 ixgbe_ptp_stop(adapter
);
5930 ixgbe_close_suspend(adapter
);
5932 ixgbe_fdir_filter_exit(adapter
);
5934 ixgbe_release_hw_control(adapter
);
5940 static int ixgbe_resume(struct pci_dev
*pdev
)
5942 struct ixgbe_adapter
*adapter
= pci_get_drvdata(pdev
);
5943 struct net_device
*netdev
= adapter
->netdev
;
5946 adapter
->hw
.hw_addr
= adapter
->io_addr
;
5947 pci_set_power_state(pdev
, PCI_D0
);
5948 pci_restore_state(pdev
);
5950 * pci_restore_state clears dev->state_saved so call
5951 * pci_save_state to restore it.
5953 pci_save_state(pdev
);
5955 err
= pci_enable_device_mem(pdev
);
5957 e_dev_err("Cannot enable PCI device from suspend\n");
5960 smp_mb__before_atomic();
5961 clear_bit(__IXGBE_DISABLED
, &adapter
->state
);
5962 pci_set_master(pdev
);
5964 pci_wake_from_d3(pdev
, false);
5966 ixgbe_reset(adapter
);
5968 IXGBE_WRITE_REG(&adapter
->hw
, IXGBE_WUS
, ~0);
5971 err
= ixgbe_init_interrupt_scheme(adapter
);
5972 if (!err
&& netif_running(netdev
))
5973 err
= ixgbe_open(netdev
);
5980 netif_device_attach(netdev
);
5984 #endif /* CONFIG_PM */
5986 static int __ixgbe_shutdown(struct pci_dev
*pdev
, bool *enable_wake
)
5988 struct ixgbe_adapter
*adapter
= pci_get_drvdata(pdev
);
5989 struct net_device
*netdev
= adapter
->netdev
;
5990 struct ixgbe_hw
*hw
= &adapter
->hw
;
5992 u32 wufc
= adapter
->wol
;
5997 netif_device_detach(netdev
);
6000 if (netif_running(netdev
))
6001 ixgbe_close_suspend(adapter
);
6004 ixgbe_clear_interrupt_scheme(adapter
);
6007 retval
= pci_save_state(pdev
);
6012 if (hw
->mac
.ops
.stop_link_on_d3
)
6013 hw
->mac
.ops
.stop_link_on_d3(hw
);
6016 ixgbe_set_rx_mode(netdev
);
6018 /* enable the optics for 82599 SFP+ fiber as we can WoL */
6019 if (hw
->mac
.ops
.enable_tx_laser
)
6020 hw
->mac
.ops
.enable_tx_laser(hw
);
6022 /* turn on all-multi mode if wake on multicast is enabled */
6023 if (wufc
& IXGBE_WUFC_MC
) {
6024 fctrl
= IXGBE_READ_REG(hw
, IXGBE_FCTRL
);
6025 fctrl
|= IXGBE_FCTRL_MPE
;
6026 IXGBE_WRITE_REG(hw
, IXGBE_FCTRL
, fctrl
);
6029 ctrl
= IXGBE_READ_REG(hw
, IXGBE_CTRL
);
6030 ctrl
|= IXGBE_CTRL_GIO_DIS
;
6031 IXGBE_WRITE_REG(hw
, IXGBE_CTRL
, ctrl
);
6033 IXGBE_WRITE_REG(hw
, IXGBE_WUFC
, wufc
);
6035 IXGBE_WRITE_REG(hw
, IXGBE_WUC
, 0);
6036 IXGBE_WRITE_REG(hw
, IXGBE_WUFC
, 0);
6039 switch (hw
->mac
.type
) {
6040 case ixgbe_mac_82598EB
:
6041 pci_wake_from_d3(pdev
, false);
6043 case ixgbe_mac_82599EB
:
6044 case ixgbe_mac_X540
:
6045 case ixgbe_mac_X550
:
6046 case ixgbe_mac_X550EM_x
:
6047 pci_wake_from_d3(pdev
, !!wufc
);
6053 *enable_wake
= !!wufc
;
6054 if (hw
->phy
.ops
.set_phy_power
&& !*enable_wake
)
6055 hw
->phy
.ops
.set_phy_power(hw
, false);
6057 ixgbe_release_hw_control(adapter
);
6059 if (!test_and_set_bit(__IXGBE_DISABLED
, &adapter
->state
))
6060 pci_disable_device(pdev
);
6066 static int ixgbe_suspend(struct pci_dev
*pdev
, pm_message_t state
)
6071 retval
= __ixgbe_shutdown(pdev
, &wake
);
6076 pci_prepare_to_sleep(pdev
);
6078 pci_wake_from_d3(pdev
, false);
6079 pci_set_power_state(pdev
, PCI_D3hot
);
6084 #endif /* CONFIG_PM */
6086 static void ixgbe_shutdown(struct pci_dev
*pdev
)
6090 __ixgbe_shutdown(pdev
, &wake
);
6092 if (system_state
== SYSTEM_POWER_OFF
) {
6093 pci_wake_from_d3(pdev
, wake
);
6094 pci_set_power_state(pdev
, PCI_D3hot
);
6099 * ixgbe_update_stats - Update the board statistics counters.
6100 * @adapter: board private structure
6102 void ixgbe_update_stats(struct ixgbe_adapter
*adapter
)
6104 struct net_device
*netdev
= adapter
->netdev
;
6105 struct ixgbe_hw
*hw
= &adapter
->hw
;
6106 struct ixgbe_hw_stats
*hwstats
= &adapter
->stats
;
6108 u32 i
, missed_rx
= 0, mpc
, bprc
, lxon
, lxoff
, xon_off_tot
;
6109 u64 non_eop_descs
= 0, restart_queue
= 0, tx_busy
= 0;
6110 u64 alloc_rx_page_failed
= 0, alloc_rx_buff_failed
= 0;
6111 u64 bytes
= 0, packets
= 0, hw_csum_rx_error
= 0;
6113 if (test_bit(__IXGBE_DOWN
, &adapter
->state
) ||
6114 test_bit(__IXGBE_RESETTING
, &adapter
->state
))
6117 if (adapter
->flags2
& IXGBE_FLAG2_RSC_ENABLED
) {
6120 for (i
= 0; i
< adapter
->num_rx_queues
; i
++) {
6121 rsc_count
+= adapter
->rx_ring
[i
]->rx_stats
.rsc_count
;
6122 rsc_flush
+= adapter
->rx_ring
[i
]->rx_stats
.rsc_flush
;
6124 adapter
->rsc_total_count
= rsc_count
;
6125 adapter
->rsc_total_flush
= rsc_flush
;
6128 for (i
= 0; i
< adapter
->num_rx_queues
; i
++) {
6129 struct ixgbe_ring
*rx_ring
= adapter
->rx_ring
[i
];
6130 non_eop_descs
+= rx_ring
->rx_stats
.non_eop_descs
;
6131 alloc_rx_page_failed
+= rx_ring
->rx_stats
.alloc_rx_page_failed
;
6132 alloc_rx_buff_failed
+= rx_ring
->rx_stats
.alloc_rx_buff_failed
;
6133 hw_csum_rx_error
+= rx_ring
->rx_stats
.csum_err
;
6134 bytes
+= rx_ring
->stats
.bytes
;
6135 packets
+= rx_ring
->stats
.packets
;
6137 adapter
->non_eop_descs
= non_eop_descs
;
6138 adapter
->alloc_rx_page_failed
= alloc_rx_page_failed
;
6139 adapter
->alloc_rx_buff_failed
= alloc_rx_buff_failed
;
6140 adapter
->hw_csum_rx_error
= hw_csum_rx_error
;
6141 netdev
->stats
.rx_bytes
= bytes
;
6142 netdev
->stats
.rx_packets
= packets
;
6146 /* gather some stats to the adapter struct that are per queue */
6147 for (i
= 0; i
< adapter
->num_tx_queues
; i
++) {
6148 struct ixgbe_ring
*tx_ring
= adapter
->tx_ring
[i
];
6149 restart_queue
+= tx_ring
->tx_stats
.restart_queue
;
6150 tx_busy
+= tx_ring
->tx_stats
.tx_busy
;
6151 bytes
+= tx_ring
->stats
.bytes
;
6152 packets
+= tx_ring
->stats
.packets
;
6154 adapter
->restart_queue
= restart_queue
;
6155 adapter
->tx_busy
= tx_busy
;
6156 netdev
->stats
.tx_bytes
= bytes
;
6157 netdev
->stats
.tx_packets
= packets
;
6159 hwstats
->crcerrs
+= IXGBE_READ_REG(hw
, IXGBE_CRCERRS
);
6161 /* 8 register reads */
6162 for (i
= 0; i
< 8; i
++) {
6163 /* for packet buffers not used, the register should read 0 */
6164 mpc
= IXGBE_READ_REG(hw
, IXGBE_MPC(i
));
6166 hwstats
->mpc
[i
] += mpc
;
6167 total_mpc
+= hwstats
->mpc
[i
];
6168 hwstats
->pxontxc
[i
] += IXGBE_READ_REG(hw
, IXGBE_PXONTXC(i
));
6169 hwstats
->pxofftxc
[i
] += IXGBE_READ_REG(hw
, IXGBE_PXOFFTXC(i
));
6170 switch (hw
->mac
.type
) {
6171 case ixgbe_mac_82598EB
:
6172 hwstats
->rnbc
[i
] += IXGBE_READ_REG(hw
, IXGBE_RNBC(i
));
6173 hwstats
->qbtc
[i
] += IXGBE_READ_REG(hw
, IXGBE_QBTC(i
));
6174 hwstats
->qbrc
[i
] += IXGBE_READ_REG(hw
, IXGBE_QBRC(i
));
6175 hwstats
->pxonrxc
[i
] +=
6176 IXGBE_READ_REG(hw
, IXGBE_PXONRXC(i
));
6178 case ixgbe_mac_82599EB
:
6179 case ixgbe_mac_X540
:
6180 case ixgbe_mac_X550
:
6181 case ixgbe_mac_X550EM_x
:
6182 hwstats
->pxonrxc
[i
] +=
6183 IXGBE_READ_REG(hw
, IXGBE_PXONRXCNT(i
));
6190 /*16 register reads */
6191 for (i
= 0; i
< 16; i
++) {
6192 hwstats
->qptc
[i
] += IXGBE_READ_REG(hw
, IXGBE_QPTC(i
));
6193 hwstats
->qprc
[i
] += IXGBE_READ_REG(hw
, IXGBE_QPRC(i
));
6194 if ((hw
->mac
.type
== ixgbe_mac_82599EB
) ||
6195 (hw
->mac
.type
== ixgbe_mac_X540
) ||
6196 (hw
->mac
.type
== ixgbe_mac_X550
) ||
6197 (hw
->mac
.type
== ixgbe_mac_X550EM_x
)) {
6198 hwstats
->qbtc
[i
] += IXGBE_READ_REG(hw
, IXGBE_QBTC_L(i
));
6199 IXGBE_READ_REG(hw
, IXGBE_QBTC_H(i
)); /* to clear */
6200 hwstats
->qbrc
[i
] += IXGBE_READ_REG(hw
, IXGBE_QBRC_L(i
));
6201 IXGBE_READ_REG(hw
, IXGBE_QBRC_H(i
)); /* to clear */
6205 hwstats
->gprc
+= IXGBE_READ_REG(hw
, IXGBE_GPRC
);
6206 /* work around hardware counting issue */
6207 hwstats
->gprc
-= missed_rx
;
6209 ixgbe_update_xoff_received(adapter
);
6211 /* 82598 hardware only has a 32 bit counter in the high register */
6212 switch (hw
->mac
.type
) {
6213 case ixgbe_mac_82598EB
:
6214 hwstats
->lxonrxc
+= IXGBE_READ_REG(hw
, IXGBE_LXONRXC
);
6215 hwstats
->gorc
+= IXGBE_READ_REG(hw
, IXGBE_GORCH
);
6216 hwstats
->gotc
+= IXGBE_READ_REG(hw
, IXGBE_GOTCH
);
6217 hwstats
->tor
+= IXGBE_READ_REG(hw
, IXGBE_TORH
);
6219 case ixgbe_mac_X540
:
6220 case ixgbe_mac_X550
:
6221 case ixgbe_mac_X550EM_x
:
6222 /* OS2BMC stats are X540 and later */
6223 hwstats
->o2bgptc
+= IXGBE_READ_REG(hw
, IXGBE_O2BGPTC
);
6224 hwstats
->o2bspc
+= IXGBE_READ_REG(hw
, IXGBE_O2BSPC
);
6225 hwstats
->b2ospc
+= IXGBE_READ_REG(hw
, IXGBE_B2OSPC
);
6226 hwstats
->b2ogprc
+= IXGBE_READ_REG(hw
, IXGBE_B2OGPRC
);
6227 case ixgbe_mac_82599EB
:
6228 for (i
= 0; i
< 16; i
++)
6229 adapter
->hw_rx_no_dma_resources
+=
6230 IXGBE_READ_REG(hw
, IXGBE_QPRDC(i
));
6231 hwstats
->gorc
+= IXGBE_READ_REG(hw
, IXGBE_GORCL
);
6232 IXGBE_READ_REG(hw
, IXGBE_GORCH
); /* to clear */
6233 hwstats
->gotc
+= IXGBE_READ_REG(hw
, IXGBE_GOTCL
);
6234 IXGBE_READ_REG(hw
, IXGBE_GOTCH
); /* to clear */
6235 hwstats
->tor
+= IXGBE_READ_REG(hw
, IXGBE_TORL
);
6236 IXGBE_READ_REG(hw
, IXGBE_TORH
); /* to clear */
6237 hwstats
->lxonrxc
+= IXGBE_READ_REG(hw
, IXGBE_LXONRXCNT
);
6238 hwstats
->fdirmatch
+= IXGBE_READ_REG(hw
, IXGBE_FDIRMATCH
);
6239 hwstats
->fdirmiss
+= IXGBE_READ_REG(hw
, IXGBE_FDIRMISS
);
6241 hwstats
->fccrc
+= IXGBE_READ_REG(hw
, IXGBE_FCCRC
);
6242 hwstats
->fcoerpdc
+= IXGBE_READ_REG(hw
, IXGBE_FCOERPDC
);
6243 hwstats
->fcoeprc
+= IXGBE_READ_REG(hw
, IXGBE_FCOEPRC
);
6244 hwstats
->fcoeptc
+= IXGBE_READ_REG(hw
, IXGBE_FCOEPTC
);
6245 hwstats
->fcoedwrc
+= IXGBE_READ_REG(hw
, IXGBE_FCOEDWRC
);
6246 hwstats
->fcoedwtc
+= IXGBE_READ_REG(hw
, IXGBE_FCOEDWTC
);
6247 /* Add up per cpu counters for total ddp aloc fail */
6248 if (adapter
->fcoe
.ddp_pool
) {
6249 struct ixgbe_fcoe
*fcoe
= &adapter
->fcoe
;
6250 struct ixgbe_fcoe_ddp_pool
*ddp_pool
;
6252 u64 noddp
= 0, noddp_ext_buff
= 0;
6253 for_each_possible_cpu(cpu
) {
6254 ddp_pool
= per_cpu_ptr(fcoe
->ddp_pool
, cpu
);
6255 noddp
+= ddp_pool
->noddp
;
6256 noddp_ext_buff
+= ddp_pool
->noddp_ext_buff
;
6258 hwstats
->fcoe_noddp
= noddp
;
6259 hwstats
->fcoe_noddp_ext_buff
= noddp_ext_buff
;
6261 #endif /* IXGBE_FCOE */
6266 bprc
= IXGBE_READ_REG(hw
, IXGBE_BPRC
);
6267 hwstats
->bprc
+= bprc
;
6268 hwstats
->mprc
+= IXGBE_READ_REG(hw
, IXGBE_MPRC
);
6269 if (hw
->mac
.type
== ixgbe_mac_82598EB
)
6270 hwstats
->mprc
-= bprc
;
6271 hwstats
->roc
+= IXGBE_READ_REG(hw
, IXGBE_ROC
);
6272 hwstats
->prc64
+= IXGBE_READ_REG(hw
, IXGBE_PRC64
);
6273 hwstats
->prc127
+= IXGBE_READ_REG(hw
, IXGBE_PRC127
);
6274 hwstats
->prc255
+= IXGBE_READ_REG(hw
, IXGBE_PRC255
);
6275 hwstats
->prc511
+= IXGBE_READ_REG(hw
, IXGBE_PRC511
);
6276 hwstats
->prc1023
+= IXGBE_READ_REG(hw
, IXGBE_PRC1023
);
6277 hwstats
->prc1522
+= IXGBE_READ_REG(hw
, IXGBE_PRC1522
);
6278 hwstats
->rlec
+= IXGBE_READ_REG(hw
, IXGBE_RLEC
);
6279 lxon
= IXGBE_READ_REG(hw
, IXGBE_LXONTXC
);
6280 hwstats
->lxontxc
+= lxon
;
6281 lxoff
= IXGBE_READ_REG(hw
, IXGBE_LXOFFTXC
);
6282 hwstats
->lxofftxc
+= lxoff
;
6283 hwstats
->gptc
+= IXGBE_READ_REG(hw
, IXGBE_GPTC
);
6284 hwstats
->mptc
+= IXGBE_READ_REG(hw
, IXGBE_MPTC
);
6286 * 82598 errata - tx of flow control packets is included in tx counters
6288 xon_off_tot
= lxon
+ lxoff
;
6289 hwstats
->gptc
-= xon_off_tot
;
6290 hwstats
->mptc
-= xon_off_tot
;
6291 hwstats
->gotc
-= (xon_off_tot
* (ETH_ZLEN
+ ETH_FCS_LEN
));
6292 hwstats
->ruc
+= IXGBE_READ_REG(hw
, IXGBE_RUC
);
6293 hwstats
->rfc
+= IXGBE_READ_REG(hw
, IXGBE_RFC
);
6294 hwstats
->rjc
+= IXGBE_READ_REG(hw
, IXGBE_RJC
);
6295 hwstats
->tpr
+= IXGBE_READ_REG(hw
, IXGBE_TPR
);
6296 hwstats
->ptc64
+= IXGBE_READ_REG(hw
, IXGBE_PTC64
);
6297 hwstats
->ptc64
-= xon_off_tot
;
6298 hwstats
->ptc127
+= IXGBE_READ_REG(hw
, IXGBE_PTC127
);
6299 hwstats
->ptc255
+= IXGBE_READ_REG(hw
, IXGBE_PTC255
);
6300 hwstats
->ptc511
+= IXGBE_READ_REG(hw
, IXGBE_PTC511
);
6301 hwstats
->ptc1023
+= IXGBE_READ_REG(hw
, IXGBE_PTC1023
);
6302 hwstats
->ptc1522
+= IXGBE_READ_REG(hw
, IXGBE_PTC1522
);
6303 hwstats
->bptc
+= IXGBE_READ_REG(hw
, IXGBE_BPTC
);
6305 /* Fill out the OS statistics structure */
6306 netdev
->stats
.multicast
= hwstats
->mprc
;
6309 netdev
->stats
.rx_errors
= hwstats
->crcerrs
+ hwstats
->rlec
;
6310 netdev
->stats
.rx_dropped
= 0;
6311 netdev
->stats
.rx_length_errors
= hwstats
->rlec
;
6312 netdev
->stats
.rx_crc_errors
= hwstats
->crcerrs
;
6313 netdev
->stats
.rx_missed_errors
= total_mpc
;
6317 * ixgbe_fdir_reinit_subtask - worker thread to reinit FDIR filter table
6318 * @adapter: pointer to the device adapter structure
6320 static void ixgbe_fdir_reinit_subtask(struct ixgbe_adapter
*adapter
)
6322 struct ixgbe_hw
*hw
= &adapter
->hw
;
6325 if (!(adapter
->flags2
& IXGBE_FLAG2_FDIR_REQUIRES_REINIT
))
6328 adapter
->flags2
&= ~IXGBE_FLAG2_FDIR_REQUIRES_REINIT
;
6330 /* if interface is down do nothing */
6331 if (test_bit(__IXGBE_DOWN
, &adapter
->state
))
6334 /* do nothing if we are not using signature filters */
6335 if (!(adapter
->flags
& IXGBE_FLAG_FDIR_HASH_CAPABLE
))
6338 adapter
->fdir_overflow
++;
6340 if (ixgbe_reinit_fdir_tables_82599(hw
) == 0) {
6341 for (i
= 0; i
< adapter
->num_tx_queues
; i
++)
6342 set_bit(__IXGBE_TX_FDIR_INIT_DONE
,
6343 &(adapter
->tx_ring
[i
]->state
));
6344 /* re-enable flow director interrupts */
6345 IXGBE_WRITE_REG(hw
, IXGBE_EIMS
, IXGBE_EIMS_FLOW_DIR
);
6347 e_err(probe
, "failed to finish FDIR re-initialization, "
6348 "ignored adding FDIR ATR filters\n");
6353 * ixgbe_check_hang_subtask - check for hung queues and dropped interrupts
6354 * @adapter: pointer to the device adapter structure
6356 * This function serves two purposes. First it strobes the interrupt lines
6357 * in order to make certain interrupts are occurring. Secondly it sets the
6358 * bits needed to check for TX hangs. As a result we should immediately
6359 * determine if a hang has occurred.
6361 static void ixgbe_check_hang_subtask(struct ixgbe_adapter
*adapter
)
6363 struct ixgbe_hw
*hw
= &adapter
->hw
;
6367 /* If we're down, removing or resetting, just bail */
6368 if (test_bit(__IXGBE_DOWN
, &adapter
->state
) ||
6369 test_bit(__IXGBE_REMOVING
, &adapter
->state
) ||
6370 test_bit(__IXGBE_RESETTING
, &adapter
->state
))
6373 /* Force detection of hung controller */
6374 if (netif_carrier_ok(adapter
->netdev
)) {
6375 for (i
= 0; i
< adapter
->num_tx_queues
; i
++)
6376 set_check_for_tx_hang(adapter
->tx_ring
[i
]);
6379 if (!(adapter
->flags
& IXGBE_FLAG_MSIX_ENABLED
)) {
6381 * for legacy and MSI interrupts don't set any bits
6382 * that are enabled for EIAM, because this operation
6383 * would set *both* EIMS and EICS for any bit in EIAM
6385 IXGBE_WRITE_REG(hw
, IXGBE_EICS
,
6386 (IXGBE_EICS_TCP_TIMER
| IXGBE_EICS_OTHER
));
6388 /* get one bit for every active tx/rx interrupt vector */
6389 for (i
= 0; i
< adapter
->num_q_vectors
; i
++) {
6390 struct ixgbe_q_vector
*qv
= adapter
->q_vector
[i
];
6391 if (qv
->rx
.ring
|| qv
->tx
.ring
)
6392 eics
|= ((u64
)1 << i
);
6396 /* Cause software interrupt to ensure rings are cleaned */
6397 ixgbe_irq_rearm_queues(adapter
, eics
);
6401 * ixgbe_watchdog_update_link - update the link status
6402 * @adapter: pointer to the device adapter structure
6403 * @link_speed: pointer to a u32 to store the link_speed
6405 static void ixgbe_watchdog_update_link(struct ixgbe_adapter
*adapter
)
6407 struct ixgbe_hw
*hw
= &adapter
->hw
;
6408 u32 link_speed
= adapter
->link_speed
;
6409 bool link_up
= adapter
->link_up
;
6410 bool pfc_en
= adapter
->dcb_cfg
.pfc_mode_enable
;
6412 if (!(adapter
->flags
& IXGBE_FLAG_NEED_LINK_UPDATE
))
6415 if (hw
->mac
.ops
.check_link
) {
6416 hw
->mac
.ops
.check_link(hw
, &link_speed
, &link_up
, false);
6418 /* always assume link is up, if no check link function */
6419 link_speed
= IXGBE_LINK_SPEED_10GB_FULL
;
6423 if (adapter
->ixgbe_ieee_pfc
)
6424 pfc_en
|= !!(adapter
->ixgbe_ieee_pfc
->pfc_en
);
6426 if (link_up
&& !((adapter
->flags
& IXGBE_FLAG_DCB_ENABLED
) && pfc_en
)) {
6427 hw
->mac
.ops
.fc_enable(hw
);
6428 ixgbe_set_rx_drop_en(adapter
);
6432 time_after(jiffies
, (adapter
->link_check_timeout
+
6433 IXGBE_TRY_LINK_TIMEOUT
))) {
6434 adapter
->flags
&= ~IXGBE_FLAG_NEED_LINK_UPDATE
;
6435 IXGBE_WRITE_REG(hw
, IXGBE_EIMS
, IXGBE_EIMC_LSC
);
6436 IXGBE_WRITE_FLUSH(hw
);
6439 adapter
->link_up
= link_up
;
6440 adapter
->link_speed
= link_speed
;
6443 static void ixgbe_update_default_up(struct ixgbe_adapter
*adapter
)
6445 #ifdef CONFIG_IXGBE_DCB
6446 struct net_device
*netdev
= adapter
->netdev
;
6447 struct dcb_app app
= {
6448 .selector
= IEEE_8021QAZ_APP_SEL_ETHERTYPE
,
6453 if (adapter
->dcbx_cap
& DCB_CAP_DCBX_VER_IEEE
)
6454 up
= dcb_ieee_getapp_mask(netdev
, &app
);
6456 adapter
->default_up
= (up
> 1) ? (ffs(up
) - 1) : 0;
6461 * ixgbe_watchdog_link_is_up - update netif_carrier status and
6462 * print link up message
6463 * @adapter: pointer to the device adapter structure
6465 static void ixgbe_watchdog_link_is_up(struct ixgbe_adapter
*adapter
)
6467 struct net_device
*netdev
= adapter
->netdev
;
6468 struct ixgbe_hw
*hw
= &adapter
->hw
;
6469 struct net_device
*upper
;
6470 struct list_head
*iter
;
6471 u32 link_speed
= adapter
->link_speed
;
6472 const char *speed_str
;
6473 bool flow_rx
, flow_tx
;
6475 /* only continue if link was previously down */
6476 if (netif_carrier_ok(netdev
))
6479 adapter
->flags2
&= ~IXGBE_FLAG2_SEARCH_FOR_SFP
;
6481 switch (hw
->mac
.type
) {
6482 case ixgbe_mac_82598EB
: {
6483 u32 frctl
= IXGBE_READ_REG(hw
, IXGBE_FCTRL
);
6484 u32 rmcs
= IXGBE_READ_REG(hw
, IXGBE_RMCS
);
6485 flow_rx
= !!(frctl
& IXGBE_FCTRL_RFCE
);
6486 flow_tx
= !!(rmcs
& IXGBE_RMCS_TFCE_802_3X
);
6489 case ixgbe_mac_X540
:
6490 case ixgbe_mac_X550
:
6491 case ixgbe_mac_X550EM_x
:
6492 case ixgbe_mac_82599EB
: {
6493 u32 mflcn
= IXGBE_READ_REG(hw
, IXGBE_MFLCN
);
6494 u32 fccfg
= IXGBE_READ_REG(hw
, IXGBE_FCCFG
);
6495 flow_rx
= !!(mflcn
& IXGBE_MFLCN_RFCE
);
6496 flow_tx
= !!(fccfg
& IXGBE_FCCFG_TFCE_802_3X
);
6505 adapter
->last_rx_ptp_check
= jiffies
;
6507 if (test_bit(__IXGBE_PTP_RUNNING
, &adapter
->state
))
6508 ixgbe_ptp_start_cyclecounter(adapter
);
6510 switch (link_speed
) {
6511 case IXGBE_LINK_SPEED_10GB_FULL
:
6512 speed_str
= "10 Gbps";
6514 case IXGBE_LINK_SPEED_2_5GB_FULL
:
6515 speed_str
= "2.5 Gbps";
6517 case IXGBE_LINK_SPEED_1GB_FULL
:
6518 speed_str
= "1 Gbps";
6520 case IXGBE_LINK_SPEED_100_FULL
:
6521 speed_str
= "100 Mbps";
6524 speed_str
= "unknown speed";
6527 e_info(drv
, "NIC Link is Up %s, Flow Control: %s\n", speed_str
,
6528 ((flow_rx
&& flow_tx
) ? "RX/TX" :
6530 (flow_tx
? "TX" : "None"))));
6532 netif_carrier_on(netdev
);
6533 ixgbe_check_vf_rate_limit(adapter
);
6535 /* enable transmits */
6536 netif_tx_wake_all_queues(adapter
->netdev
);
6538 /* enable any upper devices */
6540 netdev_for_each_all_upper_dev_rcu(adapter
->netdev
, upper
, iter
) {
6541 if (netif_is_macvlan(upper
)) {
6542 struct macvlan_dev
*vlan
= netdev_priv(upper
);
6545 netif_tx_wake_all_queues(upper
);
6550 /* update the default user priority for VFs */
6551 ixgbe_update_default_up(adapter
);
6553 /* ping all the active vfs to let them know link has changed */
6554 ixgbe_ping_all_vfs(adapter
);
6558 * ixgbe_watchdog_link_is_down - update netif_carrier status and
6559 * print link down message
6560 * @adapter: pointer to the adapter structure
6562 static void ixgbe_watchdog_link_is_down(struct ixgbe_adapter
*adapter
)
6564 struct net_device
*netdev
= adapter
->netdev
;
6565 struct ixgbe_hw
*hw
= &adapter
->hw
;
6567 adapter
->link_up
= false;
6568 adapter
->link_speed
= 0;
6570 /* only continue if link was up previously */
6571 if (!netif_carrier_ok(netdev
))
6574 /* poll for SFP+ cable when link is down */
6575 if (ixgbe_is_sfp(hw
) && hw
->mac
.type
== ixgbe_mac_82598EB
)
6576 adapter
->flags2
|= IXGBE_FLAG2_SEARCH_FOR_SFP
;
6578 if (test_bit(__IXGBE_PTP_RUNNING
, &adapter
->state
))
6579 ixgbe_ptp_start_cyclecounter(adapter
);
6581 e_info(drv
, "NIC Link is Down\n");
6582 netif_carrier_off(netdev
);
6584 /* ping all the active vfs to let them know link has changed */
6585 ixgbe_ping_all_vfs(adapter
);
6588 static bool ixgbe_ring_tx_pending(struct ixgbe_adapter
*adapter
)
6592 for (i
= 0; i
< adapter
->num_tx_queues
; i
++) {
6593 struct ixgbe_ring
*tx_ring
= adapter
->tx_ring
[i
];
6595 if (tx_ring
->next_to_use
!= tx_ring
->next_to_clean
)
6602 static bool ixgbe_vf_tx_pending(struct ixgbe_adapter
*adapter
)
6604 struct ixgbe_hw
*hw
= &adapter
->hw
;
6605 struct ixgbe_ring_feature
*vmdq
= &adapter
->ring_feature
[RING_F_VMDQ
];
6606 u32 q_per_pool
= __ALIGN_MASK(1, ~vmdq
->mask
);
6610 if (!adapter
->num_vfs
)
6613 /* resetting the PF is only needed for MAC before X550 */
6614 if (hw
->mac
.type
>= ixgbe_mac_X550
)
6617 for (i
= 0; i
< adapter
->num_vfs
; i
++) {
6618 for (j
= 0; j
< q_per_pool
; j
++) {
6621 h
= IXGBE_READ_REG(hw
, IXGBE_PVFTDHN(q_per_pool
, i
, j
));
6622 t
= IXGBE_READ_REG(hw
, IXGBE_PVFTDTN(q_per_pool
, i
, j
));
6633 * ixgbe_watchdog_flush_tx - flush queues on link down
6634 * @adapter: pointer to the device adapter structure
6636 static void ixgbe_watchdog_flush_tx(struct ixgbe_adapter
*adapter
)
6638 if (!netif_carrier_ok(adapter
->netdev
)) {
6639 if (ixgbe_ring_tx_pending(adapter
) ||
6640 ixgbe_vf_tx_pending(adapter
)) {
6641 /* We've lost link, so the controller stops DMA,
6642 * but we've got queued Tx work that's never going
6643 * to get done, so reset controller to flush Tx.
6644 * (Do the reset outside of interrupt context).
6646 e_warn(drv
, "initiating reset to clear Tx work after link loss\n");
6647 adapter
->flags2
|= IXGBE_FLAG2_RESET_REQUESTED
;
6652 #ifdef CONFIG_PCI_IOV
6653 static inline void ixgbe_issue_vf_flr(struct ixgbe_adapter
*adapter
,
6654 struct pci_dev
*vfdev
)
6656 if (!pci_wait_for_pending_transaction(vfdev
))
6657 e_dev_warn("Issuing VFLR with pending transactions\n");
6659 e_dev_err("Issuing VFLR for VF %s\n", pci_name(vfdev
));
6660 pcie_capability_set_word(vfdev
, PCI_EXP_DEVCTL
, PCI_EXP_DEVCTL_BCR_FLR
);
6665 static void ixgbe_check_for_bad_vf(struct ixgbe_adapter
*adapter
)
6667 struct ixgbe_hw
*hw
= &adapter
->hw
;
6668 struct pci_dev
*pdev
= adapter
->pdev
;
6672 if (!(netif_carrier_ok(adapter
->netdev
)))
6675 gpc
= IXGBE_READ_REG(hw
, IXGBE_TXDGPC
);
6676 if (gpc
) /* If incrementing then no need for the check below */
6678 /* Check to see if a bad DMA write target from an errant or
6679 * malicious VF has caused a PCIe error. If so then we can
6680 * issue a VFLR to the offending VF(s) and then resume without
6681 * requesting a full slot reset.
6687 /* check status reg for all VFs owned by this PF */
6688 for (vf
= 0; vf
< adapter
->num_vfs
; ++vf
) {
6689 struct pci_dev
*vfdev
= adapter
->vfinfo
[vf
].vfdev
;
6694 pci_read_config_word(vfdev
, PCI_STATUS
, &status_reg
);
6695 if (status_reg
!= IXGBE_FAILED_READ_CFG_WORD
&&
6696 status_reg
& PCI_STATUS_REC_MASTER_ABORT
)
6697 ixgbe_issue_vf_flr(adapter
, vfdev
);
6701 static void ixgbe_spoof_check(struct ixgbe_adapter
*adapter
)
6705 /* Do not perform spoof check for 82598 or if not in IOV mode */
6706 if (adapter
->hw
.mac
.type
== ixgbe_mac_82598EB
||
6707 adapter
->num_vfs
== 0)
6710 ssvpc
= IXGBE_READ_REG(&adapter
->hw
, IXGBE_SSVPC
);
6713 * ssvpc register is cleared on read, if zero then no
6714 * spoofed packets in the last interval.
6719 e_warn(drv
, "%u Spoofed packets detected\n", ssvpc
);
6722 static void ixgbe_spoof_check(struct ixgbe_adapter __always_unused
*adapter
)
6727 ixgbe_check_for_bad_vf(struct ixgbe_adapter __always_unused
*adapter
)
6730 #endif /* CONFIG_PCI_IOV */
6734 * ixgbe_watchdog_subtask - check and bring link up
6735 * @adapter: pointer to the device adapter structure
6737 static void ixgbe_watchdog_subtask(struct ixgbe_adapter
*adapter
)
6739 /* if interface is down, removing or resetting, do nothing */
6740 if (test_bit(__IXGBE_DOWN
, &adapter
->state
) ||
6741 test_bit(__IXGBE_REMOVING
, &adapter
->state
) ||
6742 test_bit(__IXGBE_RESETTING
, &adapter
->state
))
6745 ixgbe_watchdog_update_link(adapter
);
6747 if (adapter
->link_up
)
6748 ixgbe_watchdog_link_is_up(adapter
);
6750 ixgbe_watchdog_link_is_down(adapter
);
6752 ixgbe_check_for_bad_vf(adapter
);
6753 ixgbe_spoof_check(adapter
);
6754 ixgbe_update_stats(adapter
);
6756 ixgbe_watchdog_flush_tx(adapter
);
6760 * ixgbe_sfp_detection_subtask - poll for SFP+ cable
6761 * @adapter: the ixgbe adapter structure
6763 static void ixgbe_sfp_detection_subtask(struct ixgbe_adapter
*adapter
)
6765 struct ixgbe_hw
*hw
= &adapter
->hw
;
6768 /* not searching for SFP so there is nothing to do here */
6769 if (!(adapter
->flags2
& IXGBE_FLAG2_SEARCH_FOR_SFP
) &&
6770 !(adapter
->flags2
& IXGBE_FLAG2_SFP_NEEDS_RESET
))
6773 if (adapter
->sfp_poll_time
&&
6774 time_after(adapter
->sfp_poll_time
, jiffies
))
6775 return; /* If not yet time to poll for SFP */
6777 /* someone else is in init, wait until next service event */
6778 if (test_and_set_bit(__IXGBE_IN_SFP_INIT
, &adapter
->state
))
6781 adapter
->sfp_poll_time
= jiffies
+ IXGBE_SFP_POLL_JIFFIES
- 1;
6783 err
= hw
->phy
.ops
.identify_sfp(hw
);
6784 if (err
== IXGBE_ERR_SFP_NOT_SUPPORTED
)
6787 if (err
== IXGBE_ERR_SFP_NOT_PRESENT
) {
6788 /* If no cable is present, then we need to reset
6789 * the next time we find a good cable. */
6790 adapter
->flags2
|= IXGBE_FLAG2_SFP_NEEDS_RESET
;
6797 /* exit if reset not needed */
6798 if (!(adapter
->flags2
& IXGBE_FLAG2_SFP_NEEDS_RESET
))
6801 adapter
->flags2
&= ~IXGBE_FLAG2_SFP_NEEDS_RESET
;
6804 * A module may be identified correctly, but the EEPROM may not have
6805 * support for that module. setup_sfp() will fail in that case, so
6806 * we should not allow that module to load.
6808 if (hw
->mac
.type
== ixgbe_mac_82598EB
)
6809 err
= hw
->phy
.ops
.reset(hw
);
6811 err
= hw
->mac
.ops
.setup_sfp(hw
);
6813 if (err
== IXGBE_ERR_SFP_NOT_SUPPORTED
)
6816 adapter
->flags
|= IXGBE_FLAG_NEED_LINK_CONFIG
;
6817 e_info(probe
, "detected SFP+: %d\n", hw
->phy
.sfp_type
);
6820 clear_bit(__IXGBE_IN_SFP_INIT
, &adapter
->state
);
6822 if ((err
== IXGBE_ERR_SFP_NOT_SUPPORTED
) &&
6823 (adapter
->netdev
->reg_state
== NETREG_REGISTERED
)) {
6824 e_dev_err("failed to initialize because an unsupported "
6825 "SFP+ module type was detected.\n");
6826 e_dev_err("Reload the driver after installing a "
6827 "supported module.\n");
6828 unregister_netdev(adapter
->netdev
);
6833 * ixgbe_sfp_link_config_subtask - set up link SFP after module install
6834 * @adapter: the ixgbe adapter structure
6836 static void ixgbe_sfp_link_config_subtask(struct ixgbe_adapter
*adapter
)
6838 struct ixgbe_hw
*hw
= &adapter
->hw
;
6840 bool autoneg
= false;
6842 if (!(adapter
->flags
& IXGBE_FLAG_NEED_LINK_CONFIG
))
6845 /* someone else is in init, wait until next service event */
6846 if (test_and_set_bit(__IXGBE_IN_SFP_INIT
, &adapter
->state
))
6849 adapter
->flags
&= ~IXGBE_FLAG_NEED_LINK_CONFIG
;
6851 speed
= hw
->phy
.autoneg_advertised
;
6852 if ((!speed
) && (hw
->mac
.ops
.get_link_capabilities
)) {
6853 hw
->mac
.ops
.get_link_capabilities(hw
, &speed
, &autoneg
);
6855 /* setup the highest link when no autoneg */
6857 if (speed
& IXGBE_LINK_SPEED_10GB_FULL
)
6858 speed
= IXGBE_LINK_SPEED_10GB_FULL
;
6862 if (hw
->mac
.ops
.setup_link
)
6863 hw
->mac
.ops
.setup_link(hw
, speed
, true);
6865 adapter
->flags
|= IXGBE_FLAG_NEED_LINK_UPDATE
;
6866 adapter
->link_check_timeout
= jiffies
;
6867 clear_bit(__IXGBE_IN_SFP_INIT
, &adapter
->state
);
6871 * ixgbe_service_timer - Timer Call-back
6872 * @data: pointer to adapter cast into an unsigned long
6874 static void ixgbe_service_timer(unsigned long data
)
6876 struct ixgbe_adapter
*adapter
= (struct ixgbe_adapter
*)data
;
6877 unsigned long next_event_offset
;
6879 /* poll faster when waiting for link */
6880 if (adapter
->flags
& IXGBE_FLAG_NEED_LINK_UPDATE
)
6881 next_event_offset
= HZ
/ 10;
6883 next_event_offset
= HZ
* 2;
6885 /* Reset the timer */
6886 mod_timer(&adapter
->service_timer
, next_event_offset
+ jiffies
);
6888 ixgbe_service_event_schedule(adapter
);
6891 static void ixgbe_phy_interrupt_subtask(struct ixgbe_adapter
*adapter
)
6893 struct ixgbe_hw
*hw
= &adapter
->hw
;
6896 if (!(adapter
->flags2
& IXGBE_FLAG2_PHY_INTERRUPT
))
6899 adapter
->flags2
&= ~IXGBE_FLAG2_PHY_INTERRUPT
;
6901 if (!hw
->phy
.ops
.handle_lasi
)
6904 status
= hw
->phy
.ops
.handle_lasi(&adapter
->hw
);
6905 if (status
!= IXGBE_ERR_OVERTEMP
)
6908 e_crit(drv
, "%s\n", ixgbe_overheat_msg
);
6911 static void ixgbe_reset_subtask(struct ixgbe_adapter
*adapter
)
6913 if (!(adapter
->flags2
& IXGBE_FLAG2_RESET_REQUESTED
))
6916 adapter
->flags2
&= ~IXGBE_FLAG2_RESET_REQUESTED
;
6918 /* If we're already down, removing or resetting, just bail */
6919 if (test_bit(__IXGBE_DOWN
, &adapter
->state
) ||
6920 test_bit(__IXGBE_REMOVING
, &adapter
->state
) ||
6921 test_bit(__IXGBE_RESETTING
, &adapter
->state
))
6924 ixgbe_dump(adapter
);
6925 netdev_err(adapter
->netdev
, "Reset adapter\n");
6926 adapter
->tx_timeout_count
++;
6929 ixgbe_reinit_locked(adapter
);
6934 * ixgbe_service_task - manages and runs subtasks
6935 * @work: pointer to work_struct containing our data
6937 static void ixgbe_service_task(struct work_struct
*work
)
6939 struct ixgbe_adapter
*adapter
= container_of(work
,
6940 struct ixgbe_adapter
,
6942 if (ixgbe_removed(adapter
->hw
.hw_addr
)) {
6943 if (!test_bit(__IXGBE_DOWN
, &adapter
->state
)) {
6945 ixgbe_down(adapter
);
6948 ixgbe_service_event_complete(adapter
);
6951 #ifdef CONFIG_IXGBE_VXLAN
6952 if (adapter
->flags2
& IXGBE_FLAG2_VXLAN_REREG_NEEDED
) {
6953 adapter
->flags2
&= ~IXGBE_FLAG2_VXLAN_REREG_NEEDED
;
6954 vxlan_get_rx_port(adapter
->netdev
);
6956 #endif /* CONFIG_IXGBE_VXLAN */
6957 ixgbe_reset_subtask(adapter
);
6958 ixgbe_phy_interrupt_subtask(adapter
);
6959 ixgbe_sfp_detection_subtask(adapter
);
6960 ixgbe_sfp_link_config_subtask(adapter
);
6961 ixgbe_check_overtemp_subtask(adapter
);
6962 ixgbe_watchdog_subtask(adapter
);
6963 ixgbe_fdir_reinit_subtask(adapter
);
6964 ixgbe_check_hang_subtask(adapter
);
6966 if (test_bit(__IXGBE_PTP_RUNNING
, &adapter
->state
)) {
6967 ixgbe_ptp_overflow_check(adapter
);
6968 ixgbe_ptp_rx_hang(adapter
);
6971 ixgbe_service_event_complete(adapter
);
6974 static int ixgbe_tso(struct ixgbe_ring
*tx_ring
,
6975 struct ixgbe_tx_buffer
*first
,
6978 struct sk_buff
*skb
= first
->skb
;
6979 u32 vlan_macip_lens
, type_tucmd
;
6980 u32 mss_l4len_idx
, l4len
;
6983 if (skb
->ip_summed
!= CHECKSUM_PARTIAL
)
6986 if (!skb_is_gso(skb
))
6989 err
= skb_cow_head(skb
, 0);
6993 /* ADV DTYP TUCMD MKRLOC/ISCSIHEDLEN */
6994 type_tucmd
= IXGBE_ADVTXD_TUCMD_L4T_TCP
;
6996 if (first
->protocol
== htons(ETH_P_IP
)) {
6997 struct iphdr
*iph
= ip_hdr(skb
);
7000 tcp_hdr(skb
)->check
= ~csum_tcpudp_magic(iph
->saddr
,
7004 type_tucmd
|= IXGBE_ADVTXD_TUCMD_IPV4
;
7005 first
->tx_flags
|= IXGBE_TX_FLAGS_TSO
|
7006 IXGBE_TX_FLAGS_CSUM
|
7007 IXGBE_TX_FLAGS_IPV4
;
7008 } else if (skb_is_gso_v6(skb
)) {
7009 ipv6_hdr(skb
)->payload_len
= 0;
7010 tcp_hdr(skb
)->check
=
7011 ~csum_ipv6_magic(&ipv6_hdr(skb
)->saddr
,
7012 &ipv6_hdr(skb
)->daddr
,
7014 first
->tx_flags
|= IXGBE_TX_FLAGS_TSO
|
7015 IXGBE_TX_FLAGS_CSUM
;
7018 /* compute header lengths */
7019 l4len
= tcp_hdrlen(skb
);
7020 *hdr_len
= skb_transport_offset(skb
) + l4len
;
7022 /* update gso size and bytecount with header size */
7023 first
->gso_segs
= skb_shinfo(skb
)->gso_segs
;
7024 first
->bytecount
+= (first
->gso_segs
- 1) * *hdr_len
;
7026 /* mss_l4len_id: use 0 as index for TSO */
7027 mss_l4len_idx
= l4len
<< IXGBE_ADVTXD_L4LEN_SHIFT
;
7028 mss_l4len_idx
|= skb_shinfo(skb
)->gso_size
<< IXGBE_ADVTXD_MSS_SHIFT
;
7030 /* vlan_macip_lens: HEADLEN, MACLEN, VLAN tag */
7031 vlan_macip_lens
= skb_network_header_len(skb
);
7032 vlan_macip_lens
|= skb_network_offset(skb
) << IXGBE_ADVTXD_MACLEN_SHIFT
;
7033 vlan_macip_lens
|= first
->tx_flags
& IXGBE_TX_FLAGS_VLAN_MASK
;
7035 ixgbe_tx_ctxtdesc(tx_ring
, vlan_macip_lens
, 0, type_tucmd
,
7041 static void ixgbe_tx_csum(struct ixgbe_ring
*tx_ring
,
7042 struct ixgbe_tx_buffer
*first
)
7044 struct sk_buff
*skb
= first
->skb
;
7045 u32 vlan_macip_lens
= 0;
7046 u32 mss_l4len_idx
= 0;
7049 if (skb
->ip_summed
!= CHECKSUM_PARTIAL
) {
7050 if (!(first
->tx_flags
& IXGBE_TX_FLAGS_HW_VLAN
) &&
7051 !(first
->tx_flags
& IXGBE_TX_FLAGS_CC
))
7053 vlan_macip_lens
= skb_network_offset(skb
) <<
7054 IXGBE_ADVTXD_MACLEN_SHIFT
;
7059 struct ipv6hdr
*ipv6
;
7063 struct tcphdr
*tcphdr
;
7068 if (skb
->encapsulation
) {
7069 network_hdr
.raw
= skb_inner_network_header(skb
);
7070 transport_hdr
.raw
= skb_inner_transport_header(skb
);
7071 vlan_macip_lens
= skb_inner_network_offset(skb
) <<
7072 IXGBE_ADVTXD_MACLEN_SHIFT
;
7074 network_hdr
.raw
= skb_network_header(skb
);
7075 transport_hdr
.raw
= skb_transport_header(skb
);
7076 vlan_macip_lens
= skb_network_offset(skb
) <<
7077 IXGBE_ADVTXD_MACLEN_SHIFT
;
7080 /* use first 4 bits to determine IP version */
7081 switch (network_hdr
.ipv4
->version
) {
7083 vlan_macip_lens
|= transport_hdr
.raw
- network_hdr
.raw
;
7084 type_tucmd
|= IXGBE_ADVTXD_TUCMD_IPV4
;
7085 l4_hdr
= network_hdr
.ipv4
->protocol
;
7088 vlan_macip_lens
|= transport_hdr
.raw
- network_hdr
.raw
;
7089 l4_hdr
= network_hdr
.ipv6
->nexthdr
;
7090 if (likely((transport_hdr
.raw
- network_hdr
.raw
) ==
7091 sizeof(struct ipv6hdr
)))
7093 ipv6_skip_exthdr(skb
, network_hdr
.raw
- skb
->data
+
7094 sizeof(struct ipv6hdr
),
7095 &l4_hdr
, &frag_off
);
7096 if (unlikely(frag_off
))
7097 l4_hdr
= NEXTHDR_FRAGMENT
;
7105 type_tucmd
|= IXGBE_ADVTXD_TUCMD_L4T_TCP
;
7106 mss_l4len_idx
= (transport_hdr
.tcphdr
->doff
* 4) <<
7107 IXGBE_ADVTXD_L4LEN_SHIFT
;
7110 type_tucmd
|= IXGBE_ADVTXD_TUCMD_L4T_SCTP
;
7111 mss_l4len_idx
= sizeof(struct sctphdr
) <<
7112 IXGBE_ADVTXD_L4LEN_SHIFT
;
7115 mss_l4len_idx
= sizeof(struct udphdr
) <<
7116 IXGBE_ADVTXD_L4LEN_SHIFT
;
7119 if (unlikely(net_ratelimit())) {
7120 dev_warn(tx_ring
->dev
,
7121 "partial checksum, version=%d, l4 proto=%x\n",
7122 network_hdr
.ipv4
->version
, l4_hdr
);
7124 skb_checksum_help(skb
);
7128 /* update TX checksum flag */
7129 first
->tx_flags
|= IXGBE_TX_FLAGS_CSUM
;
7133 /* vlan_macip_lens: MACLEN, VLAN tag */
7134 vlan_macip_lens
|= first
->tx_flags
& IXGBE_TX_FLAGS_VLAN_MASK
;
7136 ixgbe_tx_ctxtdesc(tx_ring
, vlan_macip_lens
, 0,
7137 type_tucmd
, mss_l4len_idx
);
7140 #define IXGBE_SET_FLAG(_input, _flag, _result) \
7141 ((_flag <= _result) ? \
7142 ((u32)(_input & _flag) * (_result / _flag)) : \
7143 ((u32)(_input & _flag) / (_flag / _result)))
7145 static u32
ixgbe_tx_cmd_type(struct sk_buff
*skb
, u32 tx_flags
)
7147 /* set type for advanced descriptor with frame checksum insertion */
7148 u32 cmd_type
= IXGBE_ADVTXD_DTYP_DATA
|
7149 IXGBE_ADVTXD_DCMD_DEXT
|
7150 IXGBE_ADVTXD_DCMD_IFCS
;
7152 /* set HW vlan bit if vlan is present */
7153 cmd_type
|= IXGBE_SET_FLAG(tx_flags
, IXGBE_TX_FLAGS_HW_VLAN
,
7154 IXGBE_ADVTXD_DCMD_VLE
);
7156 /* set segmentation enable bits for TSO/FSO */
7157 cmd_type
|= IXGBE_SET_FLAG(tx_flags
, IXGBE_TX_FLAGS_TSO
,
7158 IXGBE_ADVTXD_DCMD_TSE
);
7160 /* set timestamp bit if present */
7161 cmd_type
|= IXGBE_SET_FLAG(tx_flags
, IXGBE_TX_FLAGS_TSTAMP
,
7162 IXGBE_ADVTXD_MAC_TSTAMP
);
7164 /* insert frame checksum */
7165 cmd_type
^= IXGBE_SET_FLAG(skb
->no_fcs
, 1, IXGBE_ADVTXD_DCMD_IFCS
);
7170 static void ixgbe_tx_olinfo_status(union ixgbe_adv_tx_desc
*tx_desc
,
7171 u32 tx_flags
, unsigned int paylen
)
7173 u32 olinfo_status
= paylen
<< IXGBE_ADVTXD_PAYLEN_SHIFT
;
7175 /* enable L4 checksum for TSO and TX checksum offload */
7176 olinfo_status
|= IXGBE_SET_FLAG(tx_flags
,
7177 IXGBE_TX_FLAGS_CSUM
,
7178 IXGBE_ADVTXD_POPTS_TXSM
);
7180 /* enble IPv4 checksum for TSO */
7181 olinfo_status
|= IXGBE_SET_FLAG(tx_flags
,
7182 IXGBE_TX_FLAGS_IPV4
,
7183 IXGBE_ADVTXD_POPTS_IXSM
);
7186 * Check Context must be set if Tx switch is enabled, which it
7187 * always is for case where virtual functions are running
7189 olinfo_status
|= IXGBE_SET_FLAG(tx_flags
,
7193 tx_desc
->read
.olinfo_status
= cpu_to_le32(olinfo_status
);
7196 static int __ixgbe_maybe_stop_tx(struct ixgbe_ring
*tx_ring
, u16 size
)
7198 netif_stop_subqueue(tx_ring
->netdev
, tx_ring
->queue_index
);
7200 /* Herbert's original patch had:
7201 * smp_mb__after_netif_stop_queue();
7202 * but since that doesn't exist yet, just open code it.
7206 /* We need to check again in a case another CPU has just
7207 * made room available.
7209 if (likely(ixgbe_desc_unused(tx_ring
) < size
))
7212 /* A reprieve! - use start_queue because it doesn't call schedule */
7213 netif_start_subqueue(tx_ring
->netdev
, tx_ring
->queue_index
);
7214 ++tx_ring
->tx_stats
.restart_queue
;
7218 static inline int ixgbe_maybe_stop_tx(struct ixgbe_ring
*tx_ring
, u16 size
)
7220 if (likely(ixgbe_desc_unused(tx_ring
) >= size
))
7223 return __ixgbe_maybe_stop_tx(tx_ring
, size
);
7226 #define IXGBE_TXD_CMD (IXGBE_TXD_CMD_EOP | \
7229 static void ixgbe_tx_map(struct ixgbe_ring
*tx_ring
,
7230 struct ixgbe_tx_buffer
*first
,
7233 struct sk_buff
*skb
= first
->skb
;
7234 struct ixgbe_tx_buffer
*tx_buffer
;
7235 union ixgbe_adv_tx_desc
*tx_desc
;
7236 struct skb_frag_struct
*frag
;
7238 unsigned int data_len
, size
;
7239 u32 tx_flags
= first
->tx_flags
;
7240 u32 cmd_type
= ixgbe_tx_cmd_type(skb
, tx_flags
);
7241 u16 i
= tx_ring
->next_to_use
;
7243 tx_desc
= IXGBE_TX_DESC(tx_ring
, i
);
7245 ixgbe_tx_olinfo_status(tx_desc
, tx_flags
, skb
->len
- hdr_len
);
7247 size
= skb_headlen(skb
);
7248 data_len
= skb
->data_len
;
7251 if (tx_flags
& IXGBE_TX_FLAGS_FCOE
) {
7252 if (data_len
< sizeof(struct fcoe_crc_eof
)) {
7253 size
-= sizeof(struct fcoe_crc_eof
) - data_len
;
7256 data_len
-= sizeof(struct fcoe_crc_eof
);
7261 dma
= dma_map_single(tx_ring
->dev
, skb
->data
, size
, DMA_TO_DEVICE
);
7265 for (frag
= &skb_shinfo(skb
)->frags
[0];; frag
++) {
7266 if (dma_mapping_error(tx_ring
->dev
, dma
))
7269 /* record length, and DMA address */
7270 dma_unmap_len_set(tx_buffer
, len
, size
);
7271 dma_unmap_addr_set(tx_buffer
, dma
, dma
);
7273 tx_desc
->read
.buffer_addr
= cpu_to_le64(dma
);
7275 while (unlikely(size
> IXGBE_MAX_DATA_PER_TXD
)) {
7276 tx_desc
->read
.cmd_type_len
=
7277 cpu_to_le32(cmd_type
^ IXGBE_MAX_DATA_PER_TXD
);
7281 if (i
== tx_ring
->count
) {
7282 tx_desc
= IXGBE_TX_DESC(tx_ring
, 0);
7285 tx_desc
->read
.olinfo_status
= 0;
7287 dma
+= IXGBE_MAX_DATA_PER_TXD
;
7288 size
-= IXGBE_MAX_DATA_PER_TXD
;
7290 tx_desc
->read
.buffer_addr
= cpu_to_le64(dma
);
7293 if (likely(!data_len
))
7296 tx_desc
->read
.cmd_type_len
= cpu_to_le32(cmd_type
^ size
);
7300 if (i
== tx_ring
->count
) {
7301 tx_desc
= IXGBE_TX_DESC(tx_ring
, 0);
7304 tx_desc
->read
.olinfo_status
= 0;
7307 size
= min_t(unsigned int, data_len
, skb_frag_size(frag
));
7309 size
= skb_frag_size(frag
);
7313 dma
= skb_frag_dma_map(tx_ring
->dev
, frag
, 0, size
,
7316 tx_buffer
= &tx_ring
->tx_buffer_info
[i
];
7319 /* write last descriptor with RS and EOP bits */
7320 cmd_type
|= size
| IXGBE_TXD_CMD
;
7321 tx_desc
->read
.cmd_type_len
= cpu_to_le32(cmd_type
);
7323 netdev_tx_sent_queue(txring_txq(tx_ring
), first
->bytecount
);
7325 /* set the timestamp */
7326 first
->time_stamp
= jiffies
;
7329 * Force memory writes to complete before letting h/w know there
7330 * are new descriptors to fetch. (Only applicable for weak-ordered
7331 * memory model archs, such as IA-64).
7333 * We also need this memory barrier to make certain all of the
7334 * status bits have been updated before next_to_watch is written.
7338 /* set next_to_watch value indicating a packet is present */
7339 first
->next_to_watch
= tx_desc
;
7342 if (i
== tx_ring
->count
)
7345 tx_ring
->next_to_use
= i
;
7347 ixgbe_maybe_stop_tx(tx_ring
, DESC_NEEDED
);
7349 if (netif_xmit_stopped(txring_txq(tx_ring
)) || !skb
->xmit_more
) {
7350 writel(i
, tx_ring
->tail
);
7352 /* we need this if more than one processor can write to our tail
7353 * at a time, it synchronizes IO on IA64/Altix systems
7360 dev_err(tx_ring
->dev
, "TX DMA map failed\n");
7362 /* clear dma mappings for failed tx_buffer_info map */
7364 tx_buffer
= &tx_ring
->tx_buffer_info
[i
];
7365 ixgbe_unmap_and_free_tx_resource(tx_ring
, tx_buffer
);
7366 if (tx_buffer
== first
)
7373 tx_ring
->next_to_use
= i
;
7376 static void ixgbe_atr(struct ixgbe_ring
*ring
,
7377 struct ixgbe_tx_buffer
*first
)
7379 struct ixgbe_q_vector
*q_vector
= ring
->q_vector
;
7380 union ixgbe_atr_hash_dword input
= { .dword
= 0 };
7381 union ixgbe_atr_hash_dword common
= { .dword
= 0 };
7383 unsigned char *network
;
7385 struct ipv6hdr
*ipv6
;
7388 struct sk_buff
*skb
;
7389 #ifdef CONFIG_IXGBE_VXLAN
7391 #endif /* CONFIG_IXGBE_VXLAN */
7394 /* if ring doesn't have a interrupt vector, cannot perform ATR */
7398 /* do nothing if sampling is disabled */
7399 if (!ring
->atr_sample_rate
)
7404 /* snag network header to get L4 type and address */
7406 hdr
.network
= skb_network_header(skb
);
7407 if (skb
->encapsulation
) {
7408 #ifdef CONFIG_IXGBE_VXLAN
7409 struct ixgbe_adapter
*adapter
= q_vector
->adapter
;
7411 if (!adapter
->vxlan_port
)
7413 if (first
->protocol
!= htons(ETH_P_IP
) ||
7414 hdr
.ipv4
->version
!= IPVERSION
||
7415 hdr
.ipv4
->protocol
!= IPPROTO_UDP
) {
7418 if (ntohs(udp_hdr(skb
)->dest
) != adapter
->vxlan_port
)
7421 hdr
.network
= skb_inner_network_header(skb
);
7422 th
= inner_tcp_hdr(skb
);
7425 #endif /* CONFIG_IXGBE_VXLAN */
7427 /* Currently only IPv4/IPv6 with TCP is supported */
7428 if ((first
->protocol
!= htons(ETH_P_IPV6
) ||
7429 hdr
.ipv6
->nexthdr
!= IPPROTO_TCP
) &&
7430 (first
->protocol
!= htons(ETH_P_IP
) ||
7431 hdr
.ipv4
->protocol
!= IPPROTO_TCP
))
7436 /* skip this packet since it is invalid or the socket is closing */
7440 /* sample on all syn packets or once every atr sample count */
7441 if (!th
->syn
&& (ring
->atr_count
< ring
->atr_sample_rate
))
7444 /* reset sample count */
7445 ring
->atr_count
= 0;
7447 vlan_id
= htons(first
->tx_flags
>> IXGBE_TX_FLAGS_VLAN_SHIFT
);
7450 * src and dst are inverted, think how the receiver sees them
7452 * The input is broken into two sections, a non-compressed section
7453 * containing vm_pool, vlan_id, and flow_type. The rest of the data
7454 * is XORed together and stored in the compressed dword.
7456 input
.formatted
.vlan_id
= vlan_id
;
7459 * since src port and flex bytes occupy the same word XOR them together
7460 * and write the value to source port portion of compressed dword
7462 if (first
->tx_flags
& (IXGBE_TX_FLAGS_SW_VLAN
| IXGBE_TX_FLAGS_HW_VLAN
))
7463 common
.port
.src
^= th
->dest
^ htons(ETH_P_8021Q
);
7465 common
.port
.src
^= th
->dest
^ first
->protocol
;
7466 common
.port
.dst
^= th
->source
;
7468 if (first
->protocol
== htons(ETH_P_IP
)) {
7469 input
.formatted
.flow_type
= IXGBE_ATR_FLOW_TYPE_TCPV4
;
7470 common
.ip
^= hdr
.ipv4
->saddr
^ hdr
.ipv4
->daddr
;
7472 input
.formatted
.flow_type
= IXGBE_ATR_FLOW_TYPE_TCPV6
;
7473 common
.ip
^= hdr
.ipv6
->saddr
.s6_addr32
[0] ^
7474 hdr
.ipv6
->saddr
.s6_addr32
[1] ^
7475 hdr
.ipv6
->saddr
.s6_addr32
[2] ^
7476 hdr
.ipv6
->saddr
.s6_addr32
[3] ^
7477 hdr
.ipv6
->daddr
.s6_addr32
[0] ^
7478 hdr
.ipv6
->daddr
.s6_addr32
[1] ^
7479 hdr
.ipv6
->daddr
.s6_addr32
[2] ^
7480 hdr
.ipv6
->daddr
.s6_addr32
[3];
7483 #ifdef CONFIG_IXGBE_VXLAN
7485 input
.formatted
.flow_type
|= IXGBE_ATR_L4TYPE_TUNNEL_MASK
;
7486 #endif /* CONFIG_IXGBE_VXLAN */
7488 /* This assumes the Rx queue and Tx queue are bound to the same CPU */
7489 ixgbe_fdir_add_signature_filter_82599(&q_vector
->adapter
->hw
,
7490 input
, common
, ring
->queue_index
);
7493 static u16
ixgbe_select_queue(struct net_device
*dev
, struct sk_buff
*skb
,
7494 void *accel_priv
, select_queue_fallback_t fallback
)
7496 struct ixgbe_fwd_adapter
*fwd_adapter
= accel_priv
;
7498 struct ixgbe_adapter
*adapter
;
7499 struct ixgbe_ring_feature
*f
;
7504 return skb
->queue_mapping
+ fwd_adapter
->tx_base_queue
;
7509 * only execute the code below if protocol is FCoE
7510 * or FIP and we have FCoE enabled on the adapter
7512 switch (vlan_get_protocol(skb
)) {
7513 case htons(ETH_P_FCOE
):
7514 case htons(ETH_P_FIP
):
7515 adapter
= netdev_priv(dev
);
7517 if (adapter
->flags
& IXGBE_FLAG_FCOE_ENABLED
)
7520 return fallback(dev
, skb
);
7523 f
= &adapter
->ring_feature
[RING_F_FCOE
];
7525 txq
= skb_rx_queue_recorded(skb
) ? skb_get_rx_queue(skb
) :
7528 while (txq
>= f
->indices
)
7531 return txq
+ f
->offset
;
7533 return fallback(dev
, skb
);
7537 netdev_tx_t
ixgbe_xmit_frame_ring(struct sk_buff
*skb
,
7538 struct ixgbe_adapter
*adapter
,
7539 struct ixgbe_ring
*tx_ring
)
7541 struct ixgbe_tx_buffer
*first
;
7545 u16 count
= TXD_USE_COUNT(skb_headlen(skb
));
7546 __be16 protocol
= skb
->protocol
;
7550 * need: 1 descriptor per page * PAGE_SIZE/IXGBE_MAX_DATA_PER_TXD,
7551 * + 1 desc for skb_headlen/IXGBE_MAX_DATA_PER_TXD,
7552 * + 2 desc gap to keep tail from touching head,
7553 * + 1 desc for context descriptor,
7554 * otherwise try next time
7556 for (f
= 0; f
< skb_shinfo(skb
)->nr_frags
; f
++)
7557 count
+= TXD_USE_COUNT(skb_shinfo(skb
)->frags
[f
].size
);
7559 if (ixgbe_maybe_stop_tx(tx_ring
, count
+ 3)) {
7560 tx_ring
->tx_stats
.tx_busy
++;
7561 return NETDEV_TX_BUSY
;
7564 /* record the location of the first descriptor for this packet */
7565 first
= &tx_ring
->tx_buffer_info
[tx_ring
->next_to_use
];
7567 first
->bytecount
= skb
->len
;
7568 first
->gso_segs
= 1;
7570 /* if we have a HW VLAN tag being added default to the HW one */
7571 if (skb_vlan_tag_present(skb
)) {
7572 tx_flags
|= skb_vlan_tag_get(skb
) << IXGBE_TX_FLAGS_VLAN_SHIFT
;
7573 tx_flags
|= IXGBE_TX_FLAGS_HW_VLAN
;
7574 /* else if it is a SW VLAN check the next protocol and store the tag */
7575 } else if (protocol
== htons(ETH_P_8021Q
)) {
7576 struct vlan_hdr
*vhdr
, _vhdr
;
7577 vhdr
= skb_header_pointer(skb
, ETH_HLEN
, sizeof(_vhdr
), &_vhdr
);
7581 tx_flags
|= ntohs(vhdr
->h_vlan_TCI
) <<
7582 IXGBE_TX_FLAGS_VLAN_SHIFT
;
7583 tx_flags
|= IXGBE_TX_FLAGS_SW_VLAN
;
7585 protocol
= vlan_get_protocol(skb
);
7587 if (unlikely(skb_shinfo(skb
)->tx_flags
& SKBTX_HW_TSTAMP
) &&
7588 adapter
->ptp_clock
&&
7589 !test_and_set_bit_lock(__IXGBE_PTP_TX_IN_PROGRESS
,
7591 skb_shinfo(skb
)->tx_flags
|= SKBTX_IN_PROGRESS
;
7592 tx_flags
|= IXGBE_TX_FLAGS_TSTAMP
;
7594 /* schedule check for Tx timestamp */
7595 adapter
->ptp_tx_skb
= skb_get(skb
);
7596 adapter
->ptp_tx_start
= jiffies
;
7597 schedule_work(&adapter
->ptp_tx_work
);
7600 skb_tx_timestamp(skb
);
7602 #ifdef CONFIG_PCI_IOV
7604 * Use the l2switch_enable flag - would be false if the DMA
7605 * Tx switch had been disabled.
7607 if (adapter
->flags
& IXGBE_FLAG_SRIOV_ENABLED
)
7608 tx_flags
|= IXGBE_TX_FLAGS_CC
;
7611 /* DCB maps skb priorities 0-7 onto 3 bit PCP of VLAN tag. */
7612 if ((adapter
->flags
& IXGBE_FLAG_DCB_ENABLED
) &&
7613 ((tx_flags
& (IXGBE_TX_FLAGS_HW_VLAN
| IXGBE_TX_FLAGS_SW_VLAN
)) ||
7614 (skb
->priority
!= TC_PRIO_CONTROL
))) {
7615 tx_flags
&= ~IXGBE_TX_FLAGS_VLAN_PRIO_MASK
;
7616 tx_flags
|= (skb
->priority
& 0x7) <<
7617 IXGBE_TX_FLAGS_VLAN_PRIO_SHIFT
;
7618 if (tx_flags
& IXGBE_TX_FLAGS_SW_VLAN
) {
7619 struct vlan_ethhdr
*vhdr
;
7621 if (skb_cow_head(skb
, 0))
7623 vhdr
= (struct vlan_ethhdr
*)skb
->data
;
7624 vhdr
->h_vlan_TCI
= htons(tx_flags
>>
7625 IXGBE_TX_FLAGS_VLAN_SHIFT
);
7627 tx_flags
|= IXGBE_TX_FLAGS_HW_VLAN
;
7631 /* record initial flags and protocol */
7632 first
->tx_flags
= tx_flags
;
7633 first
->protocol
= protocol
;
7636 /* setup tx offload for FCoE */
7637 if ((protocol
== htons(ETH_P_FCOE
)) &&
7638 (tx_ring
->netdev
->features
& (NETIF_F_FSO
| NETIF_F_FCOE_CRC
))) {
7639 tso
= ixgbe_fso(tx_ring
, first
, &hdr_len
);
7646 #endif /* IXGBE_FCOE */
7647 tso
= ixgbe_tso(tx_ring
, first
, &hdr_len
);
7651 ixgbe_tx_csum(tx_ring
, first
);
7653 /* add the ATR filter if ATR is on */
7654 if (test_bit(__IXGBE_TX_FDIR_INIT_DONE
, &tx_ring
->state
))
7655 ixgbe_atr(tx_ring
, first
);
7659 #endif /* IXGBE_FCOE */
7660 ixgbe_tx_map(tx_ring
, first
, hdr_len
);
7662 return NETDEV_TX_OK
;
7665 dev_kfree_skb_any(first
->skb
);
7668 return NETDEV_TX_OK
;
7671 static netdev_tx_t
__ixgbe_xmit_frame(struct sk_buff
*skb
,
7672 struct net_device
*netdev
,
7673 struct ixgbe_ring
*ring
)
7675 struct ixgbe_adapter
*adapter
= netdev_priv(netdev
);
7676 struct ixgbe_ring
*tx_ring
;
7679 * The minimum packet size for olinfo paylen is 17 so pad the skb
7680 * in order to meet this minimum size requirement.
7682 if (skb_put_padto(skb
, 17))
7683 return NETDEV_TX_OK
;
7685 tx_ring
= ring
? ring
: adapter
->tx_ring
[skb
->queue_mapping
];
7687 return ixgbe_xmit_frame_ring(skb
, adapter
, tx_ring
);
7690 static netdev_tx_t
ixgbe_xmit_frame(struct sk_buff
*skb
,
7691 struct net_device
*netdev
)
7693 return __ixgbe_xmit_frame(skb
, netdev
, NULL
);
7697 * ixgbe_set_mac - Change the Ethernet Address of the NIC
7698 * @netdev: network interface device structure
7699 * @p: pointer to an address structure
7701 * Returns 0 on success, negative on failure
7703 static int ixgbe_set_mac(struct net_device
*netdev
, void *p
)
7705 struct ixgbe_adapter
*adapter
= netdev_priv(netdev
);
7706 struct ixgbe_hw
*hw
= &adapter
->hw
;
7707 struct sockaddr
*addr
= p
;
7709 if (!is_valid_ether_addr(addr
->sa_data
))
7710 return -EADDRNOTAVAIL
;
7712 memcpy(netdev
->dev_addr
, addr
->sa_data
, netdev
->addr_len
);
7713 memcpy(hw
->mac
.addr
, addr
->sa_data
, netdev
->addr_len
);
7715 ixgbe_mac_set_default_filter(adapter
);
7721 ixgbe_mdio_read(struct net_device
*netdev
, int prtad
, int devad
, u16 addr
)
7723 struct ixgbe_adapter
*adapter
= netdev_priv(netdev
);
7724 struct ixgbe_hw
*hw
= &adapter
->hw
;
7728 if (prtad
!= hw
->phy
.mdio
.prtad
)
7730 rc
= hw
->phy
.ops
.read_reg(hw
, addr
, devad
, &value
);
7736 static int ixgbe_mdio_write(struct net_device
*netdev
, int prtad
, int devad
,
7737 u16 addr
, u16 value
)
7739 struct ixgbe_adapter
*adapter
= netdev_priv(netdev
);
7740 struct ixgbe_hw
*hw
= &adapter
->hw
;
7742 if (prtad
!= hw
->phy
.mdio
.prtad
)
7744 return hw
->phy
.ops
.write_reg(hw
, addr
, devad
, value
);
7747 static int ixgbe_ioctl(struct net_device
*netdev
, struct ifreq
*req
, int cmd
)
7749 struct ixgbe_adapter
*adapter
= netdev_priv(netdev
);
7753 return ixgbe_ptp_set_ts_config(adapter
, req
);
7755 return ixgbe_ptp_get_ts_config(adapter
, req
);
7757 return mdio_mii_ioctl(&adapter
->hw
.phy
.mdio
, if_mii(req
), cmd
);
7762 * ixgbe_add_sanmac_netdev - Add the SAN MAC address to the corresponding
7764 * @netdev: network interface device structure
7766 * Returns non-zero on failure
7768 static int ixgbe_add_sanmac_netdev(struct net_device
*dev
)
7771 struct ixgbe_adapter
*adapter
= netdev_priv(dev
);
7772 struct ixgbe_hw
*hw
= &adapter
->hw
;
7774 if (is_valid_ether_addr(hw
->mac
.san_addr
)) {
7776 err
= dev_addr_add(dev
, hw
->mac
.san_addr
, NETDEV_HW_ADDR_T_SAN
);
7779 /* update SAN MAC vmdq pool selection */
7780 hw
->mac
.ops
.set_vmdq_san_mac(hw
, VMDQ_P(0));
7786 * ixgbe_del_sanmac_netdev - Removes the SAN MAC address to the corresponding
7788 * @netdev: network interface device structure
7790 * Returns non-zero on failure
7792 static int ixgbe_del_sanmac_netdev(struct net_device
*dev
)
7795 struct ixgbe_adapter
*adapter
= netdev_priv(dev
);
7796 struct ixgbe_mac_info
*mac
= &adapter
->hw
.mac
;
7798 if (is_valid_ether_addr(mac
->san_addr
)) {
7800 err
= dev_addr_del(dev
, mac
->san_addr
, NETDEV_HW_ADDR_T_SAN
);
7806 #ifdef CONFIG_NET_POLL_CONTROLLER
7808 * Polling 'interrupt' - used by things like netconsole to send skbs
7809 * without having to re-enable interrupts. It's not called while
7810 * the interrupt routine is executing.
7812 static void ixgbe_netpoll(struct net_device
*netdev
)
7814 struct ixgbe_adapter
*adapter
= netdev_priv(netdev
);
7817 /* if interface is down do nothing */
7818 if (test_bit(__IXGBE_DOWN
, &adapter
->state
))
7821 /* loop through and schedule all active queues */
7822 for (i
= 0; i
< adapter
->num_q_vectors
; i
++)
7823 ixgbe_msix_clean_rings(0, adapter
->q_vector
[i
]);
7827 static struct rtnl_link_stats64
*ixgbe_get_stats64(struct net_device
*netdev
,
7828 struct rtnl_link_stats64
*stats
)
7830 struct ixgbe_adapter
*adapter
= netdev_priv(netdev
);
7834 for (i
= 0; i
< adapter
->num_rx_queues
; i
++) {
7835 struct ixgbe_ring
*ring
= ACCESS_ONCE(adapter
->rx_ring
[i
]);
7841 start
= u64_stats_fetch_begin_irq(&ring
->syncp
);
7842 packets
= ring
->stats
.packets
;
7843 bytes
= ring
->stats
.bytes
;
7844 } while (u64_stats_fetch_retry_irq(&ring
->syncp
, start
));
7845 stats
->rx_packets
+= packets
;
7846 stats
->rx_bytes
+= bytes
;
7850 for (i
= 0; i
< adapter
->num_tx_queues
; i
++) {
7851 struct ixgbe_ring
*ring
= ACCESS_ONCE(adapter
->tx_ring
[i
]);
7857 start
= u64_stats_fetch_begin_irq(&ring
->syncp
);
7858 packets
= ring
->stats
.packets
;
7859 bytes
= ring
->stats
.bytes
;
7860 } while (u64_stats_fetch_retry_irq(&ring
->syncp
, start
));
7861 stats
->tx_packets
+= packets
;
7862 stats
->tx_bytes
+= bytes
;
7866 /* following stats updated by ixgbe_watchdog_task() */
7867 stats
->multicast
= netdev
->stats
.multicast
;
7868 stats
->rx_errors
= netdev
->stats
.rx_errors
;
7869 stats
->rx_length_errors
= netdev
->stats
.rx_length_errors
;
7870 stats
->rx_crc_errors
= netdev
->stats
.rx_crc_errors
;
7871 stats
->rx_missed_errors
= netdev
->stats
.rx_missed_errors
;
7875 #ifdef CONFIG_IXGBE_DCB
7877 * ixgbe_validate_rtr - verify 802.1Qp to Rx packet buffer mapping is valid.
7878 * @adapter: pointer to ixgbe_adapter
7879 * @tc: number of traffic classes currently enabled
7881 * Configure a valid 802.1Qp to Rx packet buffer mapping ie confirm
7882 * 802.1Q priority maps to a packet buffer that exists.
7884 static void ixgbe_validate_rtr(struct ixgbe_adapter
*adapter
, u8 tc
)
7886 struct ixgbe_hw
*hw
= &adapter
->hw
;
7890 /* 82598 have a static priority to TC mapping that can not
7891 * be changed so no validation is needed.
7893 if (hw
->mac
.type
== ixgbe_mac_82598EB
)
7896 reg
= IXGBE_READ_REG(hw
, IXGBE_RTRUP2TC
);
7899 for (i
= 0; i
< MAX_TRAFFIC_CLASS
; i
++) {
7900 u8 up2tc
= reg
>> (i
* IXGBE_RTRUP2TC_UP_SHIFT
);
7902 /* If up2tc is out of bounds default to zero */
7904 reg
&= ~(0x7 << IXGBE_RTRUP2TC_UP_SHIFT
);
7908 IXGBE_WRITE_REG(hw
, IXGBE_RTRUP2TC
, reg
);
7914 * ixgbe_set_prio_tc_map - Configure netdev prio tc map
7915 * @adapter: Pointer to adapter struct
7917 * Populate the netdev user priority to tc map
7919 static void ixgbe_set_prio_tc_map(struct ixgbe_adapter
*adapter
)
7921 struct net_device
*dev
= adapter
->netdev
;
7922 struct ixgbe_dcb_config
*dcb_cfg
= &adapter
->dcb_cfg
;
7923 struct ieee_ets
*ets
= adapter
->ixgbe_ieee_ets
;
7926 for (prio
= 0; prio
< MAX_USER_PRIORITY
; prio
++) {
7929 if (adapter
->dcbx_cap
& DCB_CAP_DCBX_VER_CEE
)
7930 tc
= ixgbe_dcb_get_tc_from_up(dcb_cfg
, 0, prio
);
7932 tc
= ets
->prio_tc
[prio
];
7934 netdev_set_prio_tc_map(dev
, prio
, tc
);
7938 #endif /* CONFIG_IXGBE_DCB */
7940 * ixgbe_setup_tc - configure net_device for multiple traffic classes
7942 * @netdev: net device to configure
7943 * @tc: number of traffic classes to enable
7945 int ixgbe_setup_tc(struct net_device
*dev
, u8 tc
)
7947 struct ixgbe_adapter
*adapter
= netdev_priv(dev
);
7948 struct ixgbe_hw
*hw
= &adapter
->hw
;
7951 /* Hardware supports up to 8 traffic classes */
7952 if (tc
> adapter
->dcb_cfg
.num_tcs
.pg_tcs
)
7955 if (hw
->mac
.type
== ixgbe_mac_82598EB
&& tc
&& tc
< MAX_TRAFFIC_CLASS
)
7958 pools
= (find_first_zero_bit(&adapter
->fwd_bitmask
, 32) > 1);
7959 if (tc
&& pools
&& adapter
->num_rx_pools
> IXGBE_MAX_DCBMACVLANS
)
7962 /* Hardware has to reinitialize queues and interrupts to
7963 * match packet buffer alignment. Unfortunately, the
7964 * hardware is not flexible enough to do this dynamically.
7966 if (netif_running(dev
))
7968 ixgbe_clear_interrupt_scheme(adapter
);
7970 #ifdef CONFIG_IXGBE_DCB
7972 netdev_set_num_tc(dev
, tc
);
7973 ixgbe_set_prio_tc_map(adapter
);
7975 adapter
->flags
|= IXGBE_FLAG_DCB_ENABLED
;
7977 if (adapter
->hw
.mac
.type
== ixgbe_mac_82598EB
) {
7978 adapter
->last_lfc_mode
= adapter
->hw
.fc
.requested_mode
;
7979 adapter
->hw
.fc
.requested_mode
= ixgbe_fc_none
;
7982 netdev_reset_tc(dev
);
7984 if (adapter
->hw
.mac
.type
== ixgbe_mac_82598EB
)
7985 adapter
->hw
.fc
.requested_mode
= adapter
->last_lfc_mode
;
7987 adapter
->flags
&= ~IXGBE_FLAG_DCB_ENABLED
;
7989 adapter
->temp_dcb_cfg
.pfc_mode_enable
= false;
7990 adapter
->dcb_cfg
.pfc_mode_enable
= false;
7993 ixgbe_validate_rtr(adapter
, tc
);
7995 #endif /* CONFIG_IXGBE_DCB */
7996 ixgbe_init_interrupt_scheme(adapter
);
7998 if (netif_running(dev
))
7999 return ixgbe_open(dev
);
8004 #ifdef CONFIG_PCI_IOV
8005 void ixgbe_sriov_reinit(struct ixgbe_adapter
*adapter
)
8007 struct net_device
*netdev
= adapter
->netdev
;
8010 ixgbe_setup_tc(netdev
, netdev_get_num_tc(netdev
));
8015 void ixgbe_do_reset(struct net_device
*netdev
)
8017 struct ixgbe_adapter
*adapter
= netdev_priv(netdev
);
8019 if (netif_running(netdev
))
8020 ixgbe_reinit_locked(adapter
);
8022 ixgbe_reset(adapter
);
8025 static netdev_features_t
ixgbe_fix_features(struct net_device
*netdev
,
8026 netdev_features_t features
)
8028 struct ixgbe_adapter
*adapter
= netdev_priv(netdev
);
8030 /* If Rx checksum is disabled, then RSC/LRO should also be disabled */
8031 if (!(features
& NETIF_F_RXCSUM
))
8032 features
&= ~NETIF_F_LRO
;
8034 /* Turn off LRO if not RSC capable */
8035 if (!(adapter
->flags2
& IXGBE_FLAG2_RSC_CAPABLE
))
8036 features
&= ~NETIF_F_LRO
;
8041 static int ixgbe_set_features(struct net_device
*netdev
,
8042 netdev_features_t features
)
8044 struct ixgbe_adapter
*adapter
= netdev_priv(netdev
);
8045 netdev_features_t changed
= netdev
->features
^ features
;
8046 bool need_reset
= false;
8048 /* Make sure RSC matches LRO, reset if change */
8049 if (!(features
& NETIF_F_LRO
)) {
8050 if (adapter
->flags2
& IXGBE_FLAG2_RSC_ENABLED
)
8052 adapter
->flags2
&= ~IXGBE_FLAG2_RSC_ENABLED
;
8053 } else if ((adapter
->flags2
& IXGBE_FLAG2_RSC_CAPABLE
) &&
8054 !(adapter
->flags2
& IXGBE_FLAG2_RSC_ENABLED
)) {
8055 if (adapter
->rx_itr_setting
== 1 ||
8056 adapter
->rx_itr_setting
> IXGBE_MIN_RSC_ITR
) {
8057 adapter
->flags2
|= IXGBE_FLAG2_RSC_ENABLED
;
8059 } else if ((changed
^ features
) & NETIF_F_LRO
) {
8060 e_info(probe
, "rx-usecs set too low, "
8066 * Check if Flow Director n-tuple support was enabled or disabled. If
8067 * the state changed, we need to reset.
8069 switch (features
& NETIF_F_NTUPLE
) {
8070 case NETIF_F_NTUPLE
:
8071 /* turn off ATR, enable perfect filters and reset */
8072 if (!(adapter
->flags
& IXGBE_FLAG_FDIR_PERFECT_CAPABLE
))
8075 adapter
->flags
&= ~IXGBE_FLAG_FDIR_HASH_CAPABLE
;
8076 adapter
->flags
|= IXGBE_FLAG_FDIR_PERFECT_CAPABLE
;
8079 /* turn off perfect filters, enable ATR and reset */
8080 if (adapter
->flags
& IXGBE_FLAG_FDIR_PERFECT_CAPABLE
)
8083 adapter
->flags
&= ~IXGBE_FLAG_FDIR_PERFECT_CAPABLE
;
8085 /* We cannot enable ATR if SR-IOV is enabled */
8086 if (adapter
->flags
& IXGBE_FLAG_SRIOV_ENABLED
)
8089 /* We cannot enable ATR if we have 2 or more traffic classes */
8090 if (netdev_get_num_tc(netdev
) > 1)
8093 /* We cannot enable ATR if RSS is disabled */
8094 if (adapter
->ring_feature
[RING_F_RSS
].limit
<= 1)
8097 /* A sample rate of 0 indicates ATR disabled */
8098 if (!adapter
->atr_sample_rate
)
8101 adapter
->flags
|= IXGBE_FLAG_FDIR_HASH_CAPABLE
;
8105 if (features
& NETIF_F_HW_VLAN_CTAG_RX
)
8106 ixgbe_vlan_strip_enable(adapter
);
8108 ixgbe_vlan_strip_disable(adapter
);
8110 if (changed
& NETIF_F_RXALL
)
8113 netdev
->features
= features
;
8115 #ifdef CONFIG_IXGBE_VXLAN
8116 if ((adapter
->flags
& IXGBE_FLAG_VXLAN_OFFLOAD_CAPABLE
)) {
8117 if (features
& NETIF_F_RXCSUM
)
8118 adapter
->flags2
|= IXGBE_FLAG2_VXLAN_REREG_NEEDED
;
8120 ixgbe_clear_vxlan_port(adapter
);
8122 #endif /* CONFIG_IXGBE_VXLAN */
8125 ixgbe_do_reset(netdev
);
8130 #ifdef CONFIG_IXGBE_VXLAN
8132 * ixgbe_add_vxlan_port - Get notifications about VXLAN ports that come up
8133 * @dev: The port's netdev
8134 * @sa_family: Socket Family that VXLAN is notifiying us about
8135 * @port: New UDP port number that VXLAN started listening to
8137 static void ixgbe_add_vxlan_port(struct net_device
*dev
, sa_family_t sa_family
,
8140 struct ixgbe_adapter
*adapter
= netdev_priv(dev
);
8141 struct ixgbe_hw
*hw
= &adapter
->hw
;
8142 u16 new_port
= ntohs(port
);
8144 if (!(adapter
->flags
& IXGBE_FLAG_VXLAN_OFFLOAD_CAPABLE
))
8147 if (sa_family
== AF_INET6
)
8150 if (adapter
->vxlan_port
== new_port
)
8153 if (adapter
->vxlan_port
) {
8155 "Hit Max num of VXLAN ports, not adding port %d\n",
8160 adapter
->vxlan_port
= new_port
;
8161 IXGBE_WRITE_REG(hw
, IXGBE_VXLANCTRL
, new_port
);
8165 * ixgbe_del_vxlan_port - Get notifications about VXLAN ports that go away
8166 * @dev: The port's netdev
8167 * @sa_family: Socket Family that VXLAN is notifying us about
8168 * @port: UDP port number that VXLAN stopped listening to
8170 static void ixgbe_del_vxlan_port(struct net_device
*dev
, sa_family_t sa_family
,
8173 struct ixgbe_adapter
*adapter
= netdev_priv(dev
);
8174 u16 new_port
= ntohs(port
);
8176 if (!(adapter
->flags
& IXGBE_FLAG_VXLAN_OFFLOAD_CAPABLE
))
8179 if (sa_family
== AF_INET6
)
8182 if (adapter
->vxlan_port
!= new_port
) {
8183 netdev_info(dev
, "Port %d was not found, not deleting\n",
8188 ixgbe_clear_vxlan_port(adapter
);
8189 adapter
->flags2
|= IXGBE_FLAG2_VXLAN_REREG_NEEDED
;
8191 #endif /* CONFIG_IXGBE_VXLAN */
8193 static int ixgbe_ndo_fdb_add(struct ndmsg
*ndm
, struct nlattr
*tb
[],
8194 struct net_device
*dev
,
8195 const unsigned char *addr
, u16 vid
,
8198 /* guarantee we can provide a unique filter for the unicast address */
8199 if (is_unicast_ether_addr(addr
) || is_link_local_ether_addr(addr
)) {
8200 struct ixgbe_adapter
*adapter
= netdev_priv(dev
);
8201 u16 pool
= VMDQ_P(0);
8203 if (netdev_uc_count(dev
) >= ixgbe_available_rars(adapter
, pool
))
8207 return ndo_dflt_fdb_add(ndm
, tb
, dev
, addr
, vid
, flags
);
8211 * ixgbe_configure_bridge_mode - set various bridge modes
8212 * @adapter - the private structure
8213 * @mode - requested bridge mode
8215 * Configure some settings require for various bridge modes.
8217 static int ixgbe_configure_bridge_mode(struct ixgbe_adapter
*adapter
,
8220 struct ixgbe_hw
*hw
= &adapter
->hw
;
8221 unsigned int p
, num_pools
;
8225 case BRIDGE_MODE_VEPA
:
8226 /* disable Tx loopback, rely on switch hairpin mode */
8227 IXGBE_WRITE_REG(&adapter
->hw
, IXGBE_PFDTXGSWC
, 0);
8229 /* must enable Rx switching replication to allow multicast
8230 * packet reception on all VFs, and to enable source address
8233 vmdctl
= IXGBE_READ_REG(hw
, IXGBE_VMD_CTL
);
8234 vmdctl
|= IXGBE_VT_CTL_REPLEN
;
8235 IXGBE_WRITE_REG(hw
, IXGBE_VMD_CTL
, vmdctl
);
8237 /* enable Rx source address pruning. Note, this requires
8238 * replication to be enabled or else it does nothing.
8240 num_pools
= adapter
->num_vfs
+ adapter
->num_rx_pools
;
8241 for (p
= 0; p
< num_pools
; p
++) {
8242 if (hw
->mac
.ops
.set_source_address_pruning
)
8243 hw
->mac
.ops
.set_source_address_pruning(hw
,
8248 case BRIDGE_MODE_VEB
:
8249 /* enable Tx loopback for internal VF/PF communication */
8250 IXGBE_WRITE_REG(&adapter
->hw
, IXGBE_PFDTXGSWC
,
8251 IXGBE_PFDTXGSWC_VT_LBEN
);
8253 /* disable Rx switching replication unless we have SR-IOV
8256 vmdctl
= IXGBE_READ_REG(hw
, IXGBE_VMD_CTL
);
8257 if (!adapter
->num_vfs
)
8258 vmdctl
&= ~IXGBE_VT_CTL_REPLEN
;
8259 IXGBE_WRITE_REG(hw
, IXGBE_VMD_CTL
, vmdctl
);
8261 /* disable Rx source address pruning, since we don't expect to
8262 * be receiving external loopback of our transmitted frames.
8264 num_pools
= adapter
->num_vfs
+ adapter
->num_rx_pools
;
8265 for (p
= 0; p
< num_pools
; p
++) {
8266 if (hw
->mac
.ops
.set_source_address_pruning
)
8267 hw
->mac
.ops
.set_source_address_pruning(hw
,
8276 adapter
->bridge_mode
= mode
;
8278 e_info(drv
, "enabling bridge mode: %s\n",
8279 mode
== BRIDGE_MODE_VEPA
? "VEPA" : "VEB");
8284 static int ixgbe_ndo_bridge_setlink(struct net_device
*dev
,
8285 struct nlmsghdr
*nlh
, u16 flags
)
8287 struct ixgbe_adapter
*adapter
= netdev_priv(dev
);
8288 struct nlattr
*attr
, *br_spec
;
8291 if (!(adapter
->flags
& IXGBE_FLAG_SRIOV_ENABLED
))
8294 br_spec
= nlmsg_find_attr(nlh
, sizeof(struct ifinfomsg
), IFLA_AF_SPEC
);
8298 nla_for_each_nested(attr
, br_spec
, rem
) {
8302 if (nla_type(attr
) != IFLA_BRIDGE_MODE
)
8305 if (nla_len(attr
) < sizeof(mode
))
8308 mode
= nla_get_u16(attr
);
8309 status
= ixgbe_configure_bridge_mode(adapter
, mode
);
8319 static int ixgbe_ndo_bridge_getlink(struct sk_buff
*skb
, u32 pid
, u32 seq
,
8320 struct net_device
*dev
,
8321 u32 filter_mask
, int nlflags
)
8323 struct ixgbe_adapter
*adapter
= netdev_priv(dev
);
8325 if (!(adapter
->flags
& IXGBE_FLAG_SRIOV_ENABLED
))
8328 return ndo_dflt_bridge_getlink(skb
, pid
, seq
, dev
,
8329 adapter
->bridge_mode
, 0, 0, nlflags
,
8333 static void *ixgbe_fwd_add(struct net_device
*pdev
, struct net_device
*vdev
)
8335 struct ixgbe_fwd_adapter
*fwd_adapter
= NULL
;
8336 struct ixgbe_adapter
*adapter
= netdev_priv(pdev
);
8337 int used_pools
= adapter
->num_vfs
+ adapter
->num_rx_pools
;
8341 /* Hardware has a limited number of available pools. Each VF, and the
8342 * PF require a pool. Check to ensure we don't attempt to use more
8343 * then the available number of pools.
8345 if (used_pools
>= IXGBE_MAX_VF_FUNCTIONS
)
8346 return ERR_PTR(-EINVAL
);
8349 if (vdev
->num_rx_queues
!= vdev
->num_tx_queues
) {
8350 netdev_info(pdev
, "%s: Only supports a single queue count for TX and RX\n",
8352 return ERR_PTR(-EINVAL
);
8355 /* Check for hardware restriction on number of rx/tx queues */
8356 if (vdev
->num_tx_queues
> IXGBE_MAX_L2A_QUEUES
||
8357 vdev
->num_tx_queues
== IXGBE_BAD_L2A_QUEUE
) {
8359 "%s: Supports RX/TX Queue counts 1,2, and 4\n",
8361 return ERR_PTR(-EINVAL
);
8364 if (((adapter
->flags
& IXGBE_FLAG_DCB_ENABLED
) &&
8365 adapter
->num_rx_pools
> IXGBE_MAX_DCBMACVLANS
- 1) ||
8366 (adapter
->num_rx_pools
> IXGBE_MAX_MACVLANS
))
8367 return ERR_PTR(-EBUSY
);
8369 fwd_adapter
= kzalloc(sizeof(*fwd_adapter
), GFP_KERNEL
);
8371 return ERR_PTR(-ENOMEM
);
8373 pool
= find_first_zero_bit(&adapter
->fwd_bitmask
, 32);
8374 adapter
->num_rx_pools
++;
8375 set_bit(pool
, &adapter
->fwd_bitmask
);
8376 limit
= find_last_bit(&adapter
->fwd_bitmask
, 32);
8378 /* Enable VMDq flag so device will be set in VM mode */
8379 adapter
->flags
|= IXGBE_FLAG_VMDQ_ENABLED
| IXGBE_FLAG_SRIOV_ENABLED
;
8380 adapter
->ring_feature
[RING_F_VMDQ
].limit
= limit
+ 1;
8381 adapter
->ring_feature
[RING_F_RSS
].limit
= vdev
->num_tx_queues
;
8383 /* Force reinit of ring allocation with VMDQ enabled */
8384 err
= ixgbe_setup_tc(pdev
, netdev_get_num_tc(pdev
));
8387 fwd_adapter
->pool
= pool
;
8388 fwd_adapter
->real_adapter
= adapter
;
8389 err
= ixgbe_fwd_ring_up(vdev
, fwd_adapter
);
8392 netif_tx_start_all_queues(vdev
);
8395 /* unwind counter and free adapter struct */
8397 "%s: dfwd hardware acceleration failed\n", vdev
->name
);
8398 clear_bit(pool
, &adapter
->fwd_bitmask
);
8399 adapter
->num_rx_pools
--;
8401 return ERR_PTR(err
);
8404 static void ixgbe_fwd_del(struct net_device
*pdev
, void *priv
)
8406 struct ixgbe_fwd_adapter
*fwd_adapter
= priv
;
8407 struct ixgbe_adapter
*adapter
= fwd_adapter
->real_adapter
;
8410 clear_bit(fwd_adapter
->pool
, &adapter
->fwd_bitmask
);
8411 adapter
->num_rx_pools
--;
8413 limit
= find_last_bit(&adapter
->fwd_bitmask
, 32);
8414 adapter
->ring_feature
[RING_F_VMDQ
].limit
= limit
+ 1;
8415 ixgbe_fwd_ring_down(fwd_adapter
->netdev
, fwd_adapter
);
8416 ixgbe_setup_tc(pdev
, netdev_get_num_tc(pdev
));
8417 netdev_dbg(pdev
, "pool %i:%i queues %i:%i VSI bitmask %lx\n",
8418 fwd_adapter
->pool
, adapter
->num_rx_pools
,
8419 fwd_adapter
->rx_base_queue
,
8420 fwd_adapter
->rx_base_queue
+ adapter
->num_rx_queues_per_pool
,
8421 adapter
->fwd_bitmask
);
8425 #define IXGBE_MAX_TUNNEL_HDR_LEN 80
8426 static netdev_features_t
8427 ixgbe_features_check(struct sk_buff
*skb
, struct net_device
*dev
,
8428 netdev_features_t features
)
8430 if (!skb
->encapsulation
)
8433 if (unlikely(skb_inner_mac_header(skb
) - skb_transport_header(skb
) >
8434 IXGBE_MAX_TUNNEL_HDR_LEN
))
8435 return features
& ~NETIF_F_ALL_CSUM
;
8440 static const struct net_device_ops ixgbe_netdev_ops
= {
8441 .ndo_open
= ixgbe_open
,
8442 .ndo_stop
= ixgbe_close
,
8443 .ndo_start_xmit
= ixgbe_xmit_frame
,
8444 .ndo_select_queue
= ixgbe_select_queue
,
8445 .ndo_set_rx_mode
= ixgbe_set_rx_mode
,
8446 .ndo_validate_addr
= eth_validate_addr
,
8447 .ndo_set_mac_address
= ixgbe_set_mac
,
8448 .ndo_change_mtu
= ixgbe_change_mtu
,
8449 .ndo_tx_timeout
= ixgbe_tx_timeout
,
8450 .ndo_vlan_rx_add_vid
= ixgbe_vlan_rx_add_vid
,
8451 .ndo_vlan_rx_kill_vid
= ixgbe_vlan_rx_kill_vid
,
8452 .ndo_do_ioctl
= ixgbe_ioctl
,
8453 .ndo_set_vf_mac
= ixgbe_ndo_set_vf_mac
,
8454 .ndo_set_vf_vlan
= ixgbe_ndo_set_vf_vlan
,
8455 .ndo_set_vf_rate
= ixgbe_ndo_set_vf_bw
,
8456 .ndo_set_vf_spoofchk
= ixgbe_ndo_set_vf_spoofchk
,
8457 .ndo_set_vf_rss_query_en
= ixgbe_ndo_set_vf_rss_query_en
,
8458 .ndo_set_vf_trust
= ixgbe_ndo_set_vf_trust
,
8459 .ndo_get_vf_config
= ixgbe_ndo_get_vf_config
,
8460 .ndo_get_stats64
= ixgbe_get_stats64
,
8461 #ifdef CONFIG_IXGBE_DCB
8462 .ndo_setup_tc
= ixgbe_setup_tc
,
8464 #ifdef CONFIG_NET_POLL_CONTROLLER
8465 .ndo_poll_controller
= ixgbe_netpoll
,
8467 #ifdef CONFIG_NET_RX_BUSY_POLL
8468 .ndo_busy_poll
= ixgbe_low_latency_recv
,
8471 .ndo_fcoe_ddp_setup
= ixgbe_fcoe_ddp_get
,
8472 .ndo_fcoe_ddp_target
= ixgbe_fcoe_ddp_target
,
8473 .ndo_fcoe_ddp_done
= ixgbe_fcoe_ddp_put
,
8474 .ndo_fcoe_enable
= ixgbe_fcoe_enable
,
8475 .ndo_fcoe_disable
= ixgbe_fcoe_disable
,
8476 .ndo_fcoe_get_wwn
= ixgbe_fcoe_get_wwn
,
8477 .ndo_fcoe_get_hbainfo
= ixgbe_fcoe_get_hbainfo
,
8478 #endif /* IXGBE_FCOE */
8479 .ndo_set_features
= ixgbe_set_features
,
8480 .ndo_fix_features
= ixgbe_fix_features
,
8481 .ndo_fdb_add
= ixgbe_ndo_fdb_add
,
8482 .ndo_bridge_setlink
= ixgbe_ndo_bridge_setlink
,
8483 .ndo_bridge_getlink
= ixgbe_ndo_bridge_getlink
,
8484 .ndo_dfwd_add_station
= ixgbe_fwd_add
,
8485 .ndo_dfwd_del_station
= ixgbe_fwd_del
,
8486 #ifdef CONFIG_IXGBE_VXLAN
8487 .ndo_add_vxlan_port
= ixgbe_add_vxlan_port
,
8488 .ndo_del_vxlan_port
= ixgbe_del_vxlan_port
,
8489 #endif /* CONFIG_IXGBE_VXLAN */
8490 .ndo_features_check
= ixgbe_features_check
,
8494 * ixgbe_enumerate_functions - Get the number of ports this device has
8495 * @adapter: adapter structure
8497 * This function enumerates the phsyical functions co-located on a single slot,
8498 * in order to determine how many ports a device has. This is most useful in
8499 * determining the required GT/s of PCIe bandwidth necessary for optimal
8502 static inline int ixgbe_enumerate_functions(struct ixgbe_adapter
*adapter
)
8504 struct pci_dev
*entry
, *pdev
= adapter
->pdev
;
8507 /* Some cards can not use the generic count PCIe functions method,
8508 * because they are behind a parent switch, so we hardcode these with
8509 * the correct number of functions.
8511 if (ixgbe_pcie_from_parent(&adapter
->hw
))
8514 list_for_each_entry(entry
, &adapter
->pdev
->bus
->devices
, bus_list
) {
8515 /* don't count virtual functions */
8516 if (entry
->is_virtfn
)
8519 /* When the devices on the bus don't all match our device ID,
8520 * we can't reliably determine the correct number of
8521 * functions. This can occur if a function has been direct
8522 * attached to a virtual machine using VT-d, for example. In
8523 * this case, simply return -1 to indicate this.
8525 if ((entry
->vendor
!= pdev
->vendor
) ||
8526 (entry
->device
!= pdev
->device
))
8536 * ixgbe_wol_supported - Check whether device supports WoL
8537 * @hw: hw specific details
8538 * @device_id: the device ID
8539 * @subdev_id: the subsystem device ID
8541 * This function is used by probe and ethtool to determine
8542 * which devices have WoL support
8545 int ixgbe_wol_supported(struct ixgbe_adapter
*adapter
, u16 device_id
,
8548 struct ixgbe_hw
*hw
= &adapter
->hw
;
8549 u16 wol_cap
= adapter
->eeprom_cap
& IXGBE_DEVICE_CAPS_WOL_MASK
;
8550 int is_wol_supported
= 0;
8552 switch (device_id
) {
8553 case IXGBE_DEV_ID_82599_SFP
:
8554 /* Only these subdevices could supports WOL */
8555 switch (subdevice_id
) {
8556 case IXGBE_SUBDEV_ID_82599_SFP_WOL0
:
8557 case IXGBE_SUBDEV_ID_82599_560FLR
:
8558 /* only support first port */
8559 if (hw
->bus
.func
!= 0)
8561 case IXGBE_SUBDEV_ID_82599_SP_560FLR
:
8562 case IXGBE_SUBDEV_ID_82599_SFP
:
8563 case IXGBE_SUBDEV_ID_82599_RNDC
:
8564 case IXGBE_SUBDEV_ID_82599_ECNA_DP
:
8565 case IXGBE_SUBDEV_ID_82599_LOM_SFP
:
8566 is_wol_supported
= 1;
8570 case IXGBE_DEV_ID_82599EN_SFP
:
8571 /* Only this subdevice supports WOL */
8572 switch (subdevice_id
) {
8573 case IXGBE_SUBDEV_ID_82599EN_SFP_OCP1
:
8574 is_wol_supported
= 1;
8578 case IXGBE_DEV_ID_82599_COMBO_BACKPLANE
:
8579 /* All except this subdevice support WOL */
8580 if (subdevice_id
!= IXGBE_SUBDEV_ID_82599_KX4_KR_MEZZ
)
8581 is_wol_supported
= 1;
8583 case IXGBE_DEV_ID_82599_KX4
:
8584 is_wol_supported
= 1;
8586 case IXGBE_DEV_ID_X540T
:
8587 case IXGBE_DEV_ID_X540T1
:
8588 case IXGBE_DEV_ID_X550T
:
8589 case IXGBE_DEV_ID_X550EM_X_KX4
:
8590 case IXGBE_DEV_ID_X550EM_X_KR
:
8591 case IXGBE_DEV_ID_X550EM_X_10G_T
:
8592 /* check eeprom to see if enabled wol */
8593 if ((wol_cap
== IXGBE_DEVICE_CAPS_WOL_PORT0_1
) ||
8594 ((wol_cap
== IXGBE_DEVICE_CAPS_WOL_PORT0
) &&
8595 (hw
->bus
.func
== 0))) {
8596 is_wol_supported
= 1;
8601 return is_wol_supported
;
8605 * ixgbe_get_platform_mac_addr - Look up MAC address in Open Firmware / IDPROM
8606 * @adapter: Pointer to adapter struct
8608 static void ixgbe_get_platform_mac_addr(struct ixgbe_adapter
*adapter
)
8611 struct device_node
*dp
= pci_device_to_OF_node(adapter
->pdev
);
8612 struct ixgbe_hw
*hw
= &adapter
->hw
;
8613 const unsigned char *addr
;
8615 addr
= of_get_mac_address(dp
);
8617 ether_addr_copy(hw
->mac
.perm_addr
, addr
);
8620 #endif /* CONFIG_OF */
8623 ether_addr_copy(hw
->mac
.perm_addr
, idprom
->id_ethaddr
);
8624 #endif /* CONFIG_SPARC */
8628 * ixgbe_probe - Device Initialization Routine
8629 * @pdev: PCI device information struct
8630 * @ent: entry in ixgbe_pci_tbl
8632 * Returns 0 on success, negative on failure
8634 * ixgbe_probe initializes an adapter identified by a pci_dev structure.
8635 * The OS initialization, configuring of the adapter private structure,
8636 * and a hardware reset occur.
8638 static int ixgbe_probe(struct pci_dev
*pdev
, const struct pci_device_id
*ent
)
8640 struct net_device
*netdev
;
8641 struct ixgbe_adapter
*adapter
= NULL
;
8642 struct ixgbe_hw
*hw
;
8643 const struct ixgbe_info
*ii
= ixgbe_info_tbl
[ent
->driver_data
];
8644 int i
, err
, pci_using_dac
, expected_gts
;
8645 unsigned int indices
= MAX_TX_QUEUES
;
8646 u8 part_str
[IXGBE_PBANUM_LENGTH
];
8647 bool disable_dev
= false;
8653 /* Catch broken hardware that put the wrong VF device ID in
8654 * the PCIe SR-IOV capability.
8656 if (pdev
->is_virtfn
) {
8657 WARN(1, KERN_ERR
"%s (%hx:%hx) should not be a VF!\n",
8658 pci_name(pdev
), pdev
->vendor
, pdev
->device
);
8662 err
= pci_enable_device_mem(pdev
);
8666 if (!dma_set_mask_and_coherent(&pdev
->dev
, DMA_BIT_MASK(64))) {
8669 err
= dma_set_mask_and_coherent(&pdev
->dev
, DMA_BIT_MASK(32));
8672 "No usable DMA configuration, aborting\n");
8678 err
= pci_request_selected_regions(pdev
, pci_select_bars(pdev
,
8679 IORESOURCE_MEM
), ixgbe_driver_name
);
8682 "pci_request_selected_regions failed 0x%x\n", err
);
8686 pci_enable_pcie_error_reporting(pdev
);
8688 pci_set_master(pdev
);
8689 pci_save_state(pdev
);
8691 if (ii
->mac
== ixgbe_mac_82598EB
) {
8692 #ifdef CONFIG_IXGBE_DCB
8693 /* 8 TC w/ 4 queues per TC */
8694 indices
= 4 * MAX_TRAFFIC_CLASS
;
8696 indices
= IXGBE_MAX_RSS_INDICES
;
8700 netdev
= alloc_etherdev_mq(sizeof(struct ixgbe_adapter
), indices
);
8703 goto err_alloc_etherdev
;
8706 SET_NETDEV_DEV(netdev
, &pdev
->dev
);
8708 adapter
= netdev_priv(netdev
);
8710 adapter
->netdev
= netdev
;
8711 adapter
->pdev
= pdev
;
8714 adapter
->msg_enable
= netif_msg_init(debug
, DEFAULT_MSG_ENABLE
);
8716 hw
->hw_addr
= ioremap(pci_resource_start(pdev
, 0),
8717 pci_resource_len(pdev
, 0));
8718 adapter
->io_addr
= hw
->hw_addr
;
8724 netdev
->netdev_ops
= &ixgbe_netdev_ops
;
8725 ixgbe_set_ethtool_ops(netdev
);
8726 netdev
->watchdog_timeo
= 5 * HZ
;
8727 strlcpy(netdev
->name
, pci_name(pdev
), sizeof(netdev
->name
));
8730 memcpy(&hw
->mac
.ops
, ii
->mac_ops
, sizeof(hw
->mac
.ops
));
8731 hw
->mac
.type
= ii
->mac
;
8732 hw
->mvals
= ii
->mvals
;
8735 memcpy(&hw
->eeprom
.ops
, ii
->eeprom_ops
, sizeof(hw
->eeprom
.ops
));
8736 eec
= IXGBE_READ_REG(hw
, IXGBE_EEC(hw
));
8737 if (ixgbe_removed(hw
->hw_addr
)) {
8741 /* If EEPROM is valid (bit 8 = 1), use default otherwise use bit bang */
8742 if (!(eec
& (1 << 8)))
8743 hw
->eeprom
.ops
.read
= &ixgbe_read_eeprom_bit_bang_generic
;
8746 memcpy(&hw
->phy
.ops
, ii
->phy_ops
, sizeof(hw
->phy
.ops
));
8747 hw
->phy
.sfp_type
= ixgbe_sfp_type_unknown
;
8748 /* ixgbe_identify_phy_generic will set prtad and mmds properly */
8749 hw
->phy
.mdio
.prtad
= MDIO_PRTAD_NONE
;
8750 hw
->phy
.mdio
.mmds
= 0;
8751 hw
->phy
.mdio
.mode_support
= MDIO_SUPPORTS_C45
| MDIO_EMULATE_C22
;
8752 hw
->phy
.mdio
.dev
= netdev
;
8753 hw
->phy
.mdio
.mdio_read
= ixgbe_mdio_read
;
8754 hw
->phy
.mdio
.mdio_write
= ixgbe_mdio_write
;
8756 ii
->get_invariants(hw
);
8758 /* setup the private structure */
8759 err
= ixgbe_sw_init(adapter
);
8763 /* Make it possible the adapter to be woken up via WOL */
8764 switch (adapter
->hw
.mac
.type
) {
8765 case ixgbe_mac_82599EB
:
8766 case ixgbe_mac_X540
:
8767 case ixgbe_mac_X550
:
8768 case ixgbe_mac_X550EM_x
:
8769 IXGBE_WRITE_REG(&adapter
->hw
, IXGBE_WUS
, ~0);
8776 * If there is a fan on this device and it has failed log the
8779 if (adapter
->flags
& IXGBE_FLAG_FAN_FAIL_CAPABLE
) {
8780 u32 esdp
= IXGBE_READ_REG(hw
, IXGBE_ESDP
);
8781 if (esdp
& IXGBE_ESDP_SDP1
)
8782 e_crit(probe
, "Fan has stopped, replace the adapter\n");
8785 if (allow_unsupported_sfp
)
8786 hw
->allow_unsupported_sfp
= allow_unsupported_sfp
;
8788 /* reset_hw fills in the perm_addr as well */
8789 hw
->phy
.reset_if_overtemp
= true;
8790 err
= hw
->mac
.ops
.reset_hw(hw
);
8791 hw
->phy
.reset_if_overtemp
= false;
8792 if (err
== IXGBE_ERR_SFP_NOT_PRESENT
) {
8794 } else if (err
== IXGBE_ERR_SFP_NOT_SUPPORTED
) {
8795 e_dev_err("failed to load because an unsupported SFP+ or QSFP module type was detected.\n");
8796 e_dev_err("Reload the driver after installing a supported module.\n");
8799 e_dev_err("HW Init failed: %d\n", err
);
8803 #ifdef CONFIG_PCI_IOV
8804 /* SR-IOV not supported on the 82598 */
8805 if (adapter
->hw
.mac
.type
== ixgbe_mac_82598EB
)
8808 ixgbe_init_mbx_params_pf(hw
);
8809 memcpy(&hw
->mbx
.ops
, ii
->mbx_ops
, sizeof(hw
->mbx
.ops
));
8810 pci_sriov_set_totalvfs(pdev
, IXGBE_MAX_VFS_DRV_LIMIT
);
8811 ixgbe_enable_sriov(adapter
);
8815 netdev
->features
= NETIF_F_SG
|
8818 NETIF_F_HW_VLAN_CTAG_TX
|
8819 NETIF_F_HW_VLAN_CTAG_RX
|
8825 netdev
->hw_features
= netdev
->features
| NETIF_F_HW_L2FW_DOFFLOAD
;
8827 switch (adapter
->hw
.mac
.type
) {
8828 case ixgbe_mac_82599EB
:
8829 case ixgbe_mac_X540
:
8830 case ixgbe_mac_X550
:
8831 case ixgbe_mac_X550EM_x
:
8832 netdev
->features
|= NETIF_F_SCTP_CSUM
;
8833 netdev
->hw_features
|= NETIF_F_SCTP_CSUM
|
8840 netdev
->hw_features
|= NETIF_F_RXALL
;
8841 netdev
->features
|= NETIF_F_HW_VLAN_CTAG_FILTER
;
8843 netdev
->vlan_features
|= NETIF_F_TSO
;
8844 netdev
->vlan_features
|= NETIF_F_TSO6
;
8845 netdev
->vlan_features
|= NETIF_F_IP_CSUM
;
8846 netdev
->vlan_features
|= NETIF_F_IPV6_CSUM
;
8847 netdev
->vlan_features
|= NETIF_F_SG
;
8849 netdev
->hw_enc_features
|= NETIF_F_SG
| NETIF_F_IP_CSUM
|
8852 netdev
->priv_flags
|= IFF_UNICAST_FLT
;
8853 netdev
->priv_flags
|= IFF_SUPP_NOFCS
;
8855 #ifdef CONFIG_IXGBE_VXLAN
8856 switch (adapter
->hw
.mac
.type
) {
8857 case ixgbe_mac_X550
:
8858 case ixgbe_mac_X550EM_x
:
8859 netdev
->hw_enc_features
|= NETIF_F_RXCSUM
|
8866 #endif /* CONFIG_IXGBE_VXLAN */
8868 #ifdef CONFIG_IXGBE_DCB
8869 netdev
->dcbnl_ops
= &dcbnl_ops
;
8873 if (adapter
->flags
& IXGBE_FLAG_FCOE_CAPABLE
) {
8874 unsigned int fcoe_l
;
8876 if (hw
->mac
.ops
.get_device_caps
) {
8877 hw
->mac
.ops
.get_device_caps(hw
, &device_caps
);
8878 if (device_caps
& IXGBE_DEVICE_CAPS_FCOE_OFFLOADS
)
8879 adapter
->flags
&= ~IXGBE_FLAG_FCOE_CAPABLE
;
8883 fcoe_l
= min_t(int, IXGBE_FCRETA_SIZE
, num_online_cpus());
8884 adapter
->ring_feature
[RING_F_FCOE
].limit
= fcoe_l
;
8886 netdev
->features
|= NETIF_F_FSO
|
8889 netdev
->vlan_features
|= NETIF_F_FSO
|
8893 #endif /* IXGBE_FCOE */
8894 if (pci_using_dac
) {
8895 netdev
->features
|= NETIF_F_HIGHDMA
;
8896 netdev
->vlan_features
|= NETIF_F_HIGHDMA
;
8899 if (adapter
->flags2
& IXGBE_FLAG2_RSC_CAPABLE
)
8900 netdev
->hw_features
|= NETIF_F_LRO
;
8901 if (adapter
->flags2
& IXGBE_FLAG2_RSC_ENABLED
)
8902 netdev
->features
|= NETIF_F_LRO
;
8904 /* make sure the EEPROM is good */
8905 if (hw
->eeprom
.ops
.validate_checksum(hw
, NULL
) < 0) {
8906 e_dev_err("The EEPROM Checksum Is Not Valid\n");
8911 ixgbe_get_platform_mac_addr(adapter
);
8913 memcpy(netdev
->dev_addr
, hw
->mac
.perm_addr
, netdev
->addr_len
);
8915 if (!is_valid_ether_addr(netdev
->dev_addr
)) {
8916 e_dev_err("invalid MAC address\n");
8921 ixgbe_mac_set_default_filter(adapter
);
8923 setup_timer(&adapter
->service_timer
, &ixgbe_service_timer
,
8924 (unsigned long) adapter
);
8926 if (ixgbe_removed(hw
->hw_addr
)) {
8930 INIT_WORK(&adapter
->service_task
, ixgbe_service_task
);
8931 set_bit(__IXGBE_SERVICE_INITED
, &adapter
->state
);
8932 clear_bit(__IXGBE_SERVICE_SCHED
, &adapter
->state
);
8934 err
= ixgbe_init_interrupt_scheme(adapter
);
8938 /* WOL not supported for all devices */
8940 hw
->eeprom
.ops
.read(hw
, 0x2c, &adapter
->eeprom_cap
);
8941 hw
->wol_enabled
= ixgbe_wol_supported(adapter
, pdev
->device
,
8942 pdev
->subsystem_device
);
8943 if (hw
->wol_enabled
)
8944 adapter
->wol
= IXGBE_WUFC_MAG
;
8946 device_set_wakeup_enable(&adapter
->pdev
->dev
, adapter
->wol
);
8948 /* save off EEPROM version number */
8949 hw
->eeprom
.ops
.read(hw
, 0x2e, &adapter
->eeprom_verh
);
8950 hw
->eeprom
.ops
.read(hw
, 0x2d, &adapter
->eeprom_verl
);
8952 /* pick up the PCI bus settings for reporting later */
8953 if (ixgbe_pcie_from_parent(hw
))
8954 ixgbe_get_parent_bus_info(adapter
);
8956 hw
->mac
.ops
.get_bus_info(hw
);
8958 /* calculate the expected PCIe bandwidth required for optimal
8959 * performance. Note that some older parts will never have enough
8960 * bandwidth due to being older generation PCIe parts. We clamp these
8961 * parts to ensure no warning is displayed if it can't be fixed.
8963 switch (hw
->mac
.type
) {
8964 case ixgbe_mac_82598EB
:
8965 expected_gts
= min(ixgbe_enumerate_functions(adapter
) * 10, 16);
8968 expected_gts
= ixgbe_enumerate_functions(adapter
) * 10;
8972 /* don't check link if we failed to enumerate functions */
8973 if (expected_gts
> 0)
8974 ixgbe_check_minimum_link(adapter
, expected_gts
);
8976 err
= ixgbe_read_pba_string_generic(hw
, part_str
, sizeof(part_str
));
8978 strlcpy(part_str
, "Unknown", sizeof(part_str
));
8979 if (ixgbe_is_sfp(hw
) && hw
->phy
.sfp_type
!= ixgbe_sfp_type_not_present
)
8980 e_dev_info("MAC: %d, PHY: %d, SFP+: %d, PBA No: %s\n",
8981 hw
->mac
.type
, hw
->phy
.type
, hw
->phy
.sfp_type
,
8984 e_dev_info("MAC: %d, PHY: %d, PBA No: %s\n",
8985 hw
->mac
.type
, hw
->phy
.type
, part_str
);
8987 e_dev_info("%pM\n", netdev
->dev_addr
);
8989 /* reset the hardware with the new settings */
8990 err
= hw
->mac
.ops
.start_hw(hw
);
8991 if (err
== IXGBE_ERR_EEPROM_VERSION
) {
8992 /* We are running on a pre-production device, log a warning */
8993 e_dev_warn("This device is a pre-production adapter/LOM. "
8994 "Please be aware there may be issues associated "
8995 "with your hardware. If you are experiencing "
8996 "problems please contact your Intel or hardware "
8997 "representative who provided you with this "
9000 strcpy(netdev
->name
, "eth%d");
9001 err
= register_netdev(netdev
);
9005 pci_set_drvdata(pdev
, adapter
);
9007 /* power down the optics for 82599 SFP+ fiber */
9008 if (hw
->mac
.ops
.disable_tx_laser
)
9009 hw
->mac
.ops
.disable_tx_laser(hw
);
9011 /* carrier off reporting is important to ethtool even BEFORE open */
9012 netif_carrier_off(netdev
);
9014 #ifdef CONFIG_IXGBE_DCA
9015 if (dca_add_requester(&pdev
->dev
) == 0) {
9016 adapter
->flags
|= IXGBE_FLAG_DCA_ENABLED
;
9017 ixgbe_setup_dca(adapter
);
9020 if (adapter
->flags
& IXGBE_FLAG_SRIOV_ENABLED
) {
9021 e_info(probe
, "IOV is enabled with %d VFs\n", adapter
->num_vfs
);
9022 for (i
= 0; i
< adapter
->num_vfs
; i
++)
9023 ixgbe_vf_configuration(pdev
, (i
| 0x10000000));
9026 /* firmware requires driver version to be 0xFFFFFFFF
9027 * since os does not support feature
9029 if (hw
->mac
.ops
.set_fw_drv_ver
)
9030 hw
->mac
.ops
.set_fw_drv_ver(hw
, 0xFF, 0xFF, 0xFF,
9033 /* add san mac addr to netdev */
9034 ixgbe_add_sanmac_netdev(netdev
);
9036 e_dev_info("%s\n", ixgbe_default_device_descr
);
9038 #ifdef CONFIG_IXGBE_HWMON
9039 if (ixgbe_sysfs_init(adapter
))
9040 e_err(probe
, "failed to allocate sysfs resources\n");
9041 #endif /* CONFIG_IXGBE_HWMON */
9043 ixgbe_dbg_adapter_init(adapter
);
9045 /* setup link for SFP devices with MNG FW, else wait for IXGBE_UP */
9046 if (ixgbe_mng_enabled(hw
) && ixgbe_is_sfp(hw
) && hw
->mac
.ops
.setup_link
)
9047 hw
->mac
.ops
.setup_link(hw
,
9048 IXGBE_LINK_SPEED_10GB_FULL
| IXGBE_LINK_SPEED_1GB_FULL
,
9054 ixgbe_release_hw_control(adapter
);
9055 ixgbe_clear_interrupt_scheme(adapter
);
9057 ixgbe_disable_sriov(adapter
);
9058 adapter
->flags2
&= ~IXGBE_FLAG2_SEARCH_FOR_SFP
;
9059 iounmap(adapter
->io_addr
);
9060 kfree(adapter
->mac_table
);
9062 disable_dev
= !test_and_set_bit(__IXGBE_DISABLED
, &adapter
->state
);
9063 free_netdev(netdev
);
9065 pci_release_selected_regions(pdev
,
9066 pci_select_bars(pdev
, IORESOURCE_MEM
));
9069 if (!adapter
|| disable_dev
)
9070 pci_disable_device(pdev
);
9075 * ixgbe_remove - Device Removal Routine
9076 * @pdev: PCI device information struct
9078 * ixgbe_remove is called by the PCI subsystem to alert the driver
9079 * that it should release a PCI device. The could be caused by a
9080 * Hot-Plug event, or because the driver is going to be removed from
9083 static void ixgbe_remove(struct pci_dev
*pdev
)
9085 struct ixgbe_adapter
*adapter
= pci_get_drvdata(pdev
);
9086 struct net_device
*netdev
;
9089 /* if !adapter then we already cleaned up in probe */
9093 netdev
= adapter
->netdev
;
9094 ixgbe_dbg_adapter_exit(adapter
);
9096 set_bit(__IXGBE_REMOVING
, &adapter
->state
);
9097 cancel_work_sync(&adapter
->service_task
);
9100 #ifdef CONFIG_IXGBE_DCA
9101 if (adapter
->flags
& IXGBE_FLAG_DCA_ENABLED
) {
9102 adapter
->flags
&= ~IXGBE_FLAG_DCA_ENABLED
;
9103 dca_remove_requester(&pdev
->dev
);
9104 IXGBE_WRITE_REG(&adapter
->hw
, IXGBE_DCA_CTRL
,
9105 IXGBE_DCA_CTRL_DCA_DISABLE
);
9109 #ifdef CONFIG_IXGBE_HWMON
9110 ixgbe_sysfs_exit(adapter
);
9111 #endif /* CONFIG_IXGBE_HWMON */
9113 /* remove the added san mac */
9114 ixgbe_del_sanmac_netdev(netdev
);
9116 #ifdef CONFIG_PCI_IOV
9117 ixgbe_disable_sriov(adapter
);
9119 if (netdev
->reg_state
== NETREG_REGISTERED
)
9120 unregister_netdev(netdev
);
9122 ixgbe_clear_interrupt_scheme(adapter
);
9124 ixgbe_release_hw_control(adapter
);
9127 kfree(adapter
->ixgbe_ieee_pfc
);
9128 kfree(adapter
->ixgbe_ieee_ets
);
9131 iounmap(adapter
->io_addr
);
9132 pci_release_selected_regions(pdev
, pci_select_bars(pdev
,
9135 e_dev_info("complete\n");
9137 kfree(adapter
->mac_table
);
9138 disable_dev
= !test_and_set_bit(__IXGBE_DISABLED
, &adapter
->state
);
9139 free_netdev(netdev
);
9141 pci_disable_pcie_error_reporting(pdev
);
9144 pci_disable_device(pdev
);
9148 * ixgbe_io_error_detected - called when PCI error is detected
9149 * @pdev: Pointer to PCI device
9150 * @state: The current pci connection state
9152 * This function is called after a PCI bus error affecting
9153 * this device has been detected.
9155 static pci_ers_result_t
ixgbe_io_error_detected(struct pci_dev
*pdev
,
9156 pci_channel_state_t state
)
9158 struct ixgbe_adapter
*adapter
= pci_get_drvdata(pdev
);
9159 struct net_device
*netdev
= adapter
->netdev
;
9161 #ifdef CONFIG_PCI_IOV
9162 struct ixgbe_hw
*hw
= &adapter
->hw
;
9163 struct pci_dev
*bdev
, *vfdev
;
9164 u32 dw0
, dw1
, dw2
, dw3
;
9166 u16 req_id
, pf_func
;
9168 if (adapter
->hw
.mac
.type
== ixgbe_mac_82598EB
||
9169 adapter
->num_vfs
== 0)
9170 goto skip_bad_vf_detection
;
9172 bdev
= pdev
->bus
->self
;
9173 while (bdev
&& (pci_pcie_type(bdev
) != PCI_EXP_TYPE_ROOT_PORT
))
9174 bdev
= bdev
->bus
->self
;
9177 goto skip_bad_vf_detection
;
9179 pos
= pci_find_ext_capability(bdev
, PCI_EXT_CAP_ID_ERR
);
9181 goto skip_bad_vf_detection
;
9183 dw0
= ixgbe_read_pci_cfg_dword(hw
, pos
+ PCI_ERR_HEADER_LOG
);
9184 dw1
= ixgbe_read_pci_cfg_dword(hw
, pos
+ PCI_ERR_HEADER_LOG
+ 4);
9185 dw2
= ixgbe_read_pci_cfg_dword(hw
, pos
+ PCI_ERR_HEADER_LOG
+ 8);
9186 dw3
= ixgbe_read_pci_cfg_dword(hw
, pos
+ PCI_ERR_HEADER_LOG
+ 12);
9187 if (ixgbe_removed(hw
->hw_addr
))
9188 goto skip_bad_vf_detection
;
9191 /* On the 82599 if bit 7 of the requestor ID is set then it's a VF */
9192 if (!(req_id
& 0x0080))
9193 goto skip_bad_vf_detection
;
9195 pf_func
= req_id
& 0x01;
9196 if ((pf_func
& 1) == (pdev
->devfn
& 1)) {
9197 unsigned int device_id
;
9199 vf
= (req_id
& 0x7F) >> 1;
9200 e_dev_err("VF %d has caused a PCIe error\n", vf
);
9201 e_dev_err("TLP: dw0: %8.8x\tdw1: %8.8x\tdw2: "
9202 "%8.8x\tdw3: %8.8x\n",
9203 dw0
, dw1
, dw2
, dw3
);
9204 switch (adapter
->hw
.mac
.type
) {
9205 case ixgbe_mac_82599EB
:
9206 device_id
= IXGBE_82599_VF_DEVICE_ID
;
9208 case ixgbe_mac_X540
:
9209 device_id
= IXGBE_X540_VF_DEVICE_ID
;
9211 case ixgbe_mac_X550
:
9212 device_id
= IXGBE_DEV_ID_X550_VF
;
9214 case ixgbe_mac_X550EM_x
:
9215 device_id
= IXGBE_DEV_ID_X550EM_X_VF
;
9222 /* Find the pci device of the offending VF */
9223 vfdev
= pci_get_device(PCI_VENDOR_ID_INTEL
, device_id
, NULL
);
9225 if (vfdev
->devfn
== (req_id
& 0xFF))
9227 vfdev
= pci_get_device(PCI_VENDOR_ID_INTEL
,
9231 * There's a slim chance the VF could have been hot plugged,
9232 * so if it is no longer present we don't need to issue the
9233 * VFLR. Just clean up the AER in that case.
9236 ixgbe_issue_vf_flr(adapter
, vfdev
);
9237 /* Free device reference count */
9241 pci_cleanup_aer_uncorrect_error_status(pdev
);
9245 * Even though the error may have occurred on the other port
9246 * we still need to increment the vf error reference count for
9247 * both ports because the I/O resume function will be called
9250 adapter
->vferr_refcount
++;
9252 return PCI_ERS_RESULT_RECOVERED
;
9254 skip_bad_vf_detection
:
9255 #endif /* CONFIG_PCI_IOV */
9256 if (!test_bit(__IXGBE_SERVICE_INITED
, &adapter
->state
))
9257 return PCI_ERS_RESULT_DISCONNECT
;
9260 netif_device_detach(netdev
);
9262 if (state
== pci_channel_io_perm_failure
) {
9264 return PCI_ERS_RESULT_DISCONNECT
;
9267 if (netif_running(netdev
))
9268 ixgbe_down(adapter
);
9270 if (!test_and_set_bit(__IXGBE_DISABLED
, &adapter
->state
))
9271 pci_disable_device(pdev
);
9274 /* Request a slot reset. */
9275 return PCI_ERS_RESULT_NEED_RESET
;
9279 * ixgbe_io_slot_reset - called after the pci bus has been reset.
9280 * @pdev: Pointer to PCI device
9282 * Restart the card from scratch, as if from a cold-boot.
9284 static pci_ers_result_t
ixgbe_io_slot_reset(struct pci_dev
*pdev
)
9286 struct ixgbe_adapter
*adapter
= pci_get_drvdata(pdev
);
9287 pci_ers_result_t result
;
9290 if (pci_enable_device_mem(pdev
)) {
9291 e_err(probe
, "Cannot re-enable PCI device after reset.\n");
9292 result
= PCI_ERS_RESULT_DISCONNECT
;
9294 smp_mb__before_atomic();
9295 clear_bit(__IXGBE_DISABLED
, &adapter
->state
);
9296 adapter
->hw
.hw_addr
= adapter
->io_addr
;
9297 pci_set_master(pdev
);
9298 pci_restore_state(pdev
);
9299 pci_save_state(pdev
);
9301 pci_wake_from_d3(pdev
, false);
9303 ixgbe_reset(adapter
);
9304 IXGBE_WRITE_REG(&adapter
->hw
, IXGBE_WUS
, ~0);
9305 result
= PCI_ERS_RESULT_RECOVERED
;
9308 err
= pci_cleanup_aer_uncorrect_error_status(pdev
);
9310 e_dev_err("pci_cleanup_aer_uncorrect_error_status "
9311 "failed 0x%0x\n", err
);
9312 /* non-fatal, continue */
9319 * ixgbe_io_resume - called when traffic can start flowing again.
9320 * @pdev: Pointer to PCI device
9322 * This callback is called when the error recovery driver tells us that
9323 * its OK to resume normal operation.
9325 static void ixgbe_io_resume(struct pci_dev
*pdev
)
9327 struct ixgbe_adapter
*adapter
= pci_get_drvdata(pdev
);
9328 struct net_device
*netdev
= adapter
->netdev
;
9330 #ifdef CONFIG_PCI_IOV
9331 if (adapter
->vferr_refcount
) {
9332 e_info(drv
, "Resuming after VF err\n");
9333 adapter
->vferr_refcount
--;
9338 if (netif_running(netdev
))
9341 netif_device_attach(netdev
);
9344 static const struct pci_error_handlers ixgbe_err_handler
= {
9345 .error_detected
= ixgbe_io_error_detected
,
9346 .slot_reset
= ixgbe_io_slot_reset
,
9347 .resume
= ixgbe_io_resume
,
9350 static struct pci_driver ixgbe_driver
= {
9351 .name
= ixgbe_driver_name
,
9352 .id_table
= ixgbe_pci_tbl
,
9353 .probe
= ixgbe_probe
,
9354 .remove
= ixgbe_remove
,
9356 .suspend
= ixgbe_suspend
,
9357 .resume
= ixgbe_resume
,
9359 .shutdown
= ixgbe_shutdown
,
9360 .sriov_configure
= ixgbe_pci_sriov_configure
,
9361 .err_handler
= &ixgbe_err_handler
9365 * ixgbe_init_module - Driver Registration Routine
9367 * ixgbe_init_module is the first routine called when the driver is
9368 * loaded. All it does is register with the PCI subsystem.
9370 static int __init
ixgbe_init_module(void)
9373 pr_info("%s - version %s\n", ixgbe_driver_string
, ixgbe_driver_version
);
9374 pr_info("%s\n", ixgbe_copyright
);
9376 ixgbe_wq
= create_singlethread_workqueue(ixgbe_driver_name
);
9378 pr_err("%s: Failed to create workqueue\n", ixgbe_driver_name
);
9384 ret
= pci_register_driver(&ixgbe_driver
);
9390 #ifdef CONFIG_IXGBE_DCA
9391 dca_register_notify(&dca_notifier
);
9397 module_init(ixgbe_init_module
);
9400 * ixgbe_exit_module - Driver Exit Cleanup Routine
9402 * ixgbe_exit_module is called just before the driver is removed
9405 static void __exit
ixgbe_exit_module(void)
9407 #ifdef CONFIG_IXGBE_DCA
9408 dca_unregister_notify(&dca_notifier
);
9410 pci_unregister_driver(&ixgbe_driver
);
9414 destroy_workqueue(ixgbe_wq
);
9419 #ifdef CONFIG_IXGBE_DCA
9420 static int ixgbe_notify_dca(struct notifier_block
*nb
, unsigned long event
,
9425 ret_val
= driver_for_each_device(&ixgbe_driver
.driver
, NULL
, &event
,
9426 __ixgbe_notify_dca
);
9428 return ret_val
? NOTIFY_BAD
: NOTIFY_DONE
;
9431 #endif /* CONFIG_IXGBE_DCA */
9433 module_exit(ixgbe_exit_module
);