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b8ff05a9 DM |
1 | /* |
2 | * This file is part of the Chelsio T4 Ethernet driver for Linux. | |
3 | * | |
4 | * Copyright (c) 2003-2010 Chelsio Communications, Inc. All rights reserved. | |
5 | * | |
6 | * This software is available to you under a choice of one of two | |
7 | * licenses. You may choose to be licensed under the terms of the GNU | |
8 | * General Public License (GPL) Version 2, available from the file | |
9 | * COPYING in the main directory of this source tree, or the | |
10 | * OpenIB.org BSD license below: | |
11 | * | |
12 | * Redistribution and use in source and binary forms, with or | |
13 | * without modification, are permitted provided that the following | |
14 | * conditions are met: | |
15 | * | |
16 | * - Redistributions of source code must retain the above | |
17 | * copyright notice, this list of conditions and the following | |
18 | * disclaimer. | |
19 | * | |
20 | * - Redistributions in binary form must reproduce the above | |
21 | * copyright notice, this list of conditions and the following | |
22 | * disclaimer in the documentation and/or other materials | |
23 | * provided with the distribution. | |
24 | * | |
25 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, | |
26 | * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF | |
27 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND | |
28 | * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS | |
29 | * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN | |
30 | * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN | |
31 | * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | |
32 | * SOFTWARE. | |
33 | */ | |
34 | ||
35 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt | |
36 | ||
37 | #include <linux/bitmap.h> | |
38 | #include <linux/crc32.h> | |
39 | #include <linux/ctype.h> | |
40 | #include <linux/debugfs.h> | |
41 | #include <linux/err.h> | |
42 | #include <linux/etherdevice.h> | |
43 | #include <linux/firmware.h> | |
01789349 | 44 | #include <linux/if.h> |
b8ff05a9 DM |
45 | #include <linux/if_vlan.h> |
46 | #include <linux/init.h> | |
47 | #include <linux/log2.h> | |
48 | #include <linux/mdio.h> | |
49 | #include <linux/module.h> | |
50 | #include <linux/moduleparam.h> | |
51 | #include <linux/mutex.h> | |
52 | #include <linux/netdevice.h> | |
53 | #include <linux/pci.h> | |
54 | #include <linux/aer.h> | |
55 | #include <linux/rtnetlink.h> | |
56 | #include <linux/sched.h> | |
57 | #include <linux/seq_file.h> | |
58 | #include <linux/sockios.h> | |
59 | #include <linux/vmalloc.h> | |
60 | #include <linux/workqueue.h> | |
61 | #include <net/neighbour.h> | |
62 | #include <net/netevent.h> | |
63 | #include <asm/uaccess.h> | |
64 | ||
65 | #include "cxgb4.h" | |
66 | #include "t4_regs.h" | |
67 | #include "t4_msg.h" | |
68 | #include "t4fw_api.h" | |
69 | #include "l2t.h" | |
70 | ||
99e6d065 | 71 | #define DRV_VERSION "1.3.0-ko" |
b8ff05a9 DM |
72 | #define DRV_DESC "Chelsio T4 Network Driver" |
73 | ||
74 | /* | |
75 | * Max interrupt hold-off timer value in us. Queues fall back to this value | |
76 | * under extreme memory pressure so it's largish to give the system time to | |
77 | * recover. | |
78 | */ | |
79 | #define MAX_SGE_TIMERVAL 200U | |
80 | ||
7ee9ff94 | 81 | enum { |
13ee15d3 VP |
82 | /* |
83 | * Physical Function provisioning constants. | |
84 | */ | |
85 | PFRES_NVI = 4, /* # of Virtual Interfaces */ | |
86 | PFRES_NETHCTRL = 128, /* # of EQs used for ETH or CTRL Qs */ | |
87 | PFRES_NIQFLINT = 128, /* # of ingress Qs/w Free List(s)/intr | |
88 | */ | |
89 | PFRES_NEQ = 256, /* # of egress queues */ | |
90 | PFRES_NIQ = 0, /* # of ingress queues */ | |
91 | PFRES_TC = 0, /* PCI-E traffic class */ | |
92 | PFRES_NEXACTF = 128, /* # of exact MPS filters */ | |
93 | ||
94 | PFRES_R_CAPS = FW_CMD_CAP_PF, | |
95 | PFRES_WX_CAPS = FW_CMD_CAP_PF, | |
96 | ||
97 | #ifdef CONFIG_PCI_IOV | |
98 | /* | |
99 | * Virtual Function provisioning constants. We need two extra Ingress | |
100 | * Queues with Interrupt capability to serve as the VF's Firmware | |
101 | * Event Queue and Forwarded Interrupt Queue (when using MSI mode) -- | |
102 | * neither will have Free Lists associated with them). For each | |
103 | * Ethernet/Control Egress Queue and for each Free List, we need an | |
104 | * Egress Context. | |
105 | */ | |
7ee9ff94 CL |
106 | VFRES_NPORTS = 1, /* # of "ports" per VF */ |
107 | VFRES_NQSETS = 2, /* # of "Queue Sets" per VF */ | |
108 | ||
109 | VFRES_NVI = VFRES_NPORTS, /* # of Virtual Interfaces */ | |
110 | VFRES_NETHCTRL = VFRES_NQSETS, /* # of EQs used for ETH or CTRL Qs */ | |
111 | VFRES_NIQFLINT = VFRES_NQSETS+2,/* # of ingress Qs/w Free List(s)/intr */ | |
7ee9ff94 | 112 | VFRES_NEQ = VFRES_NQSETS*2, /* # of egress queues */ |
13ee15d3 | 113 | VFRES_NIQ = 0, /* # of non-fl/int ingress queues */ |
7ee9ff94 CL |
114 | VFRES_TC = 0, /* PCI-E traffic class */ |
115 | VFRES_NEXACTF = 16, /* # of exact MPS filters */ | |
116 | ||
117 | VFRES_R_CAPS = FW_CMD_CAP_DMAQ|FW_CMD_CAP_VF|FW_CMD_CAP_PORT, | |
118 | VFRES_WX_CAPS = FW_CMD_CAP_DMAQ|FW_CMD_CAP_VF, | |
13ee15d3 | 119 | #endif |
7ee9ff94 CL |
120 | }; |
121 | ||
122 | /* | |
123 | * Provide a Port Access Rights Mask for the specified PF/VF. This is very | |
124 | * static and likely not to be useful in the long run. We really need to | |
125 | * implement some form of persistent configuration which the firmware | |
126 | * controls. | |
127 | */ | |
128 | static unsigned int pfvfres_pmask(struct adapter *adapter, | |
129 | unsigned int pf, unsigned int vf) | |
130 | { | |
131 | unsigned int portn, portvec; | |
132 | ||
133 | /* | |
134 | * Give PF's access to all of the ports. | |
135 | */ | |
136 | if (vf == 0) | |
137 | return FW_PFVF_CMD_PMASK_MASK; | |
138 | ||
139 | /* | |
140 | * For VFs, we'll assign them access to the ports based purely on the | |
141 | * PF. We assign active ports in order, wrapping around if there are | |
142 | * fewer active ports than PFs: e.g. active port[pf % nports]. | |
143 | * Unfortunately the adapter's port_info structs haven't been | |
144 | * initialized yet so we have to compute this. | |
145 | */ | |
146 | if (adapter->params.nports == 0) | |
147 | return 0; | |
148 | ||
149 | portn = pf % adapter->params.nports; | |
150 | portvec = adapter->params.portvec; | |
151 | for (;;) { | |
152 | /* | |
153 | * Isolate the lowest set bit in the port vector. If we're at | |
154 | * the port number that we want, return that as the pmask. | |
155 | * otherwise mask that bit out of the port vector and | |
156 | * decrement our port number ... | |
157 | */ | |
158 | unsigned int pmask = portvec ^ (portvec & (portvec-1)); | |
159 | if (portn == 0) | |
160 | return pmask; | |
161 | portn--; | |
162 | portvec &= ~pmask; | |
163 | } | |
164 | /*NOTREACHED*/ | |
165 | } | |
7ee9ff94 | 166 | |
b8ff05a9 DM |
167 | enum { |
168 | MAX_TXQ_ENTRIES = 16384, | |
169 | MAX_CTRL_TXQ_ENTRIES = 1024, | |
170 | MAX_RSPQ_ENTRIES = 16384, | |
171 | MAX_RX_BUFFERS = 16384, | |
172 | MIN_TXQ_ENTRIES = 32, | |
173 | MIN_CTRL_TXQ_ENTRIES = 32, | |
174 | MIN_RSPQ_ENTRIES = 128, | |
175 | MIN_FL_ENTRIES = 16 | |
176 | }; | |
177 | ||
178 | #define DFLT_MSG_ENABLE (NETIF_MSG_DRV | NETIF_MSG_PROBE | NETIF_MSG_LINK | \ | |
179 | NETIF_MSG_TIMER | NETIF_MSG_IFDOWN | NETIF_MSG_IFUP |\ | |
180 | NETIF_MSG_RX_ERR | NETIF_MSG_TX_ERR) | |
181 | ||
060e0c75 | 182 | #define CH_DEVICE(devid, data) { PCI_VDEVICE(CHELSIO, devid), (data) } |
b8ff05a9 DM |
183 | |
184 | static DEFINE_PCI_DEVICE_TABLE(cxgb4_pci_tbl) = { | |
060e0c75 | 185 | CH_DEVICE(0xa000, 0), /* PE10K */ |
ccea790e DM |
186 | CH_DEVICE(0x4001, -1), |
187 | CH_DEVICE(0x4002, -1), | |
188 | CH_DEVICE(0x4003, -1), | |
189 | CH_DEVICE(0x4004, -1), | |
190 | CH_DEVICE(0x4005, -1), | |
191 | CH_DEVICE(0x4006, -1), | |
192 | CH_DEVICE(0x4007, -1), | |
193 | CH_DEVICE(0x4008, -1), | |
194 | CH_DEVICE(0x4009, -1), | |
195 | CH_DEVICE(0x400a, -1), | |
196 | CH_DEVICE(0x4401, 4), | |
197 | CH_DEVICE(0x4402, 4), | |
198 | CH_DEVICE(0x4403, 4), | |
199 | CH_DEVICE(0x4404, 4), | |
200 | CH_DEVICE(0x4405, 4), | |
201 | CH_DEVICE(0x4406, 4), | |
202 | CH_DEVICE(0x4407, 4), | |
203 | CH_DEVICE(0x4408, 4), | |
204 | CH_DEVICE(0x4409, 4), | |
205 | CH_DEVICE(0x440a, 4), | |
f637d577 VP |
206 | CH_DEVICE(0x440d, 4), |
207 | CH_DEVICE(0x440e, 4), | |
b8ff05a9 DM |
208 | { 0, } |
209 | }; | |
210 | ||
211 | #define FW_FNAME "cxgb4/t4fw.bin" | |
636f9d37 | 212 | #define FW_CFNAME "cxgb4/t4-config.txt" |
b8ff05a9 DM |
213 | |
214 | MODULE_DESCRIPTION(DRV_DESC); | |
215 | MODULE_AUTHOR("Chelsio Communications"); | |
216 | MODULE_LICENSE("Dual BSD/GPL"); | |
217 | MODULE_VERSION(DRV_VERSION); | |
218 | MODULE_DEVICE_TABLE(pci, cxgb4_pci_tbl); | |
219 | MODULE_FIRMWARE(FW_FNAME); | |
220 | ||
636f9d37 VP |
221 | /* |
222 | * Normally we're willing to become the firmware's Master PF but will be happy | |
223 | * if another PF has already become the Master and initialized the adapter. | |
224 | * Setting "force_init" will cause this driver to forcibly establish itself as | |
225 | * the Master PF and initialize the adapter. | |
226 | */ | |
227 | static uint force_init; | |
228 | ||
229 | module_param(force_init, uint, 0644); | |
230 | MODULE_PARM_DESC(force_init, "Forcibly become Master PF and initialize adapter"); | |
231 | ||
13ee15d3 VP |
232 | /* |
233 | * Normally if the firmware we connect to has Configuration File support, we | |
234 | * use that and only fall back to the old Driver-based initialization if the | |
235 | * Configuration File fails for some reason. If force_old_init is set, then | |
236 | * we'll always use the old Driver-based initialization sequence. | |
237 | */ | |
238 | static uint force_old_init; | |
239 | ||
240 | module_param(force_old_init, uint, 0644); | |
241 | MODULE_PARM_DESC(force_old_init, "Force old initialization sequence"); | |
242 | ||
b8ff05a9 DM |
243 | static int dflt_msg_enable = DFLT_MSG_ENABLE; |
244 | ||
245 | module_param(dflt_msg_enable, int, 0644); | |
246 | MODULE_PARM_DESC(dflt_msg_enable, "Chelsio T4 default message enable bitmap"); | |
247 | ||
248 | /* | |
249 | * The driver uses the best interrupt scheme available on a platform in the | |
250 | * order MSI-X, MSI, legacy INTx interrupts. This parameter determines which | |
251 | * of these schemes the driver may consider as follows: | |
252 | * | |
253 | * msi = 2: choose from among all three options | |
254 | * msi = 1: only consider MSI and INTx interrupts | |
255 | * msi = 0: force INTx interrupts | |
256 | */ | |
257 | static int msi = 2; | |
258 | ||
259 | module_param(msi, int, 0644); | |
260 | MODULE_PARM_DESC(msi, "whether to use INTx (0), MSI (1) or MSI-X (2)"); | |
261 | ||
262 | /* | |
263 | * Queue interrupt hold-off timer values. Queues default to the first of these | |
264 | * upon creation. | |
265 | */ | |
266 | static unsigned int intr_holdoff[SGE_NTIMERS - 1] = { 5, 10, 20, 50, 100 }; | |
267 | ||
268 | module_param_array(intr_holdoff, uint, NULL, 0644); | |
269 | MODULE_PARM_DESC(intr_holdoff, "values for queue interrupt hold-off timers " | |
270 | "0..4 in microseconds"); | |
271 | ||
272 | static unsigned int intr_cnt[SGE_NCOUNTERS - 1] = { 4, 8, 16 }; | |
273 | ||
274 | module_param_array(intr_cnt, uint, NULL, 0644); | |
275 | MODULE_PARM_DESC(intr_cnt, | |
276 | "thresholds 1..3 for queue interrupt packet counters"); | |
277 | ||
636f9d37 VP |
278 | /* |
279 | * Normally we tell the chip to deliver Ingress Packets into our DMA buffers | |
280 | * offset by 2 bytes in order to have the IP headers line up on 4-byte | |
281 | * boundaries. This is a requirement for many architectures which will throw | |
282 | * a machine check fault if an attempt is made to access one of the 4-byte IP | |
283 | * header fields on a non-4-byte boundary. And it's a major performance issue | |
284 | * even on some architectures which allow it like some implementations of the | |
285 | * x86 ISA. However, some architectures don't mind this and for some very | |
286 | * edge-case performance sensitive applications (like forwarding large volumes | |
287 | * of small packets), setting this DMA offset to 0 will decrease the number of | |
288 | * PCI-E Bus transfers enough to measurably affect performance. | |
289 | */ | |
290 | static int rx_dma_offset = 2; | |
291 | ||
eb939922 | 292 | static bool vf_acls; |
b8ff05a9 DM |
293 | |
294 | #ifdef CONFIG_PCI_IOV | |
295 | module_param(vf_acls, bool, 0644); | |
296 | MODULE_PARM_DESC(vf_acls, "if set enable virtualization L2 ACL enforcement"); | |
297 | ||
298 | static unsigned int num_vf[4]; | |
299 | ||
300 | module_param_array(num_vf, uint, NULL, 0644); | |
301 | MODULE_PARM_DESC(num_vf, "number of VFs for each of PFs 0-3"); | |
302 | #endif | |
303 | ||
13ee15d3 VP |
304 | /* |
305 | * The filter TCAM has a fixed portion and a variable portion. The fixed | |
306 | * portion can match on source/destination IP IPv4/IPv6 addresses and TCP/UDP | |
307 | * ports. The variable portion is 36 bits which can include things like Exact | |
308 | * Match MAC Index (9 bits), Ether Type (16 bits), IP Protocol (8 bits), | |
309 | * [Inner] VLAN Tag (17 bits), etc. which, if all were somehow selected, would | |
310 | * far exceed the 36-bit budget for this "compressed" header portion of the | |
311 | * filter. Thus, we have a scarce resource which must be carefully managed. | |
312 | * | |
313 | * By default we set this up to mostly match the set of filter matching | |
314 | * capabilities of T3 but with accommodations for some of T4's more | |
315 | * interesting features: | |
316 | * | |
317 | * { IP Fragment (1), MPS Match Type (3), IP Protocol (8), | |
318 | * [Inner] VLAN (17), Port (3), FCoE (1) } | |
319 | */ | |
320 | enum { | |
321 | TP_VLAN_PRI_MAP_DEFAULT = HW_TPL_FR_MT_PR_IV_P_FC, | |
322 | TP_VLAN_PRI_MAP_FIRST = FCOE_SHIFT, | |
323 | TP_VLAN_PRI_MAP_LAST = FRAGMENTATION_SHIFT, | |
324 | }; | |
325 | ||
326 | static unsigned int tp_vlan_pri_map = TP_VLAN_PRI_MAP_DEFAULT; | |
327 | ||
b8ff05a9 DM |
328 | static struct dentry *cxgb4_debugfs_root; |
329 | ||
330 | static LIST_HEAD(adapter_list); | |
331 | static DEFINE_MUTEX(uld_mutex); | |
332 | static struct cxgb4_uld_info ulds[CXGB4_ULD_MAX]; | |
333 | static const char *uld_str[] = { "RDMA", "iSCSI" }; | |
334 | ||
335 | static void link_report(struct net_device *dev) | |
336 | { | |
337 | if (!netif_carrier_ok(dev)) | |
338 | netdev_info(dev, "link down\n"); | |
339 | else { | |
340 | static const char *fc[] = { "no", "Rx", "Tx", "Tx/Rx" }; | |
341 | ||
342 | const char *s = "10Mbps"; | |
343 | const struct port_info *p = netdev_priv(dev); | |
344 | ||
345 | switch (p->link_cfg.speed) { | |
346 | case SPEED_10000: | |
347 | s = "10Gbps"; | |
348 | break; | |
349 | case SPEED_1000: | |
350 | s = "1000Mbps"; | |
351 | break; | |
352 | case SPEED_100: | |
353 | s = "100Mbps"; | |
354 | break; | |
355 | } | |
356 | ||
357 | netdev_info(dev, "link up, %s, full-duplex, %s PAUSE\n", s, | |
358 | fc[p->link_cfg.fc]); | |
359 | } | |
360 | } | |
361 | ||
362 | void t4_os_link_changed(struct adapter *adapter, int port_id, int link_stat) | |
363 | { | |
364 | struct net_device *dev = adapter->port[port_id]; | |
365 | ||
366 | /* Skip changes from disabled ports. */ | |
367 | if (netif_running(dev) && link_stat != netif_carrier_ok(dev)) { | |
368 | if (link_stat) | |
369 | netif_carrier_on(dev); | |
370 | else | |
371 | netif_carrier_off(dev); | |
372 | ||
373 | link_report(dev); | |
374 | } | |
375 | } | |
376 | ||
377 | void t4_os_portmod_changed(const struct adapter *adap, int port_id) | |
378 | { | |
379 | static const char *mod_str[] = { | |
a0881cab | 380 | NULL, "LR", "SR", "ER", "passive DA", "active DA", "LRM" |
b8ff05a9 DM |
381 | }; |
382 | ||
383 | const struct net_device *dev = adap->port[port_id]; | |
384 | const struct port_info *pi = netdev_priv(dev); | |
385 | ||
386 | if (pi->mod_type == FW_PORT_MOD_TYPE_NONE) | |
387 | netdev_info(dev, "port module unplugged\n"); | |
a0881cab | 388 | else if (pi->mod_type < ARRAY_SIZE(mod_str)) |
b8ff05a9 DM |
389 | netdev_info(dev, "%s module inserted\n", mod_str[pi->mod_type]); |
390 | } | |
391 | ||
392 | /* | |
393 | * Configure the exact and hash address filters to handle a port's multicast | |
394 | * and secondary unicast MAC addresses. | |
395 | */ | |
396 | static int set_addr_filters(const struct net_device *dev, bool sleep) | |
397 | { | |
398 | u64 mhash = 0; | |
399 | u64 uhash = 0; | |
400 | bool free = true; | |
401 | u16 filt_idx[7]; | |
402 | const u8 *addr[7]; | |
403 | int ret, naddr = 0; | |
b8ff05a9 DM |
404 | const struct netdev_hw_addr *ha; |
405 | int uc_cnt = netdev_uc_count(dev); | |
4a35ecf8 | 406 | int mc_cnt = netdev_mc_count(dev); |
b8ff05a9 | 407 | const struct port_info *pi = netdev_priv(dev); |
060e0c75 | 408 | unsigned int mb = pi->adapter->fn; |
b8ff05a9 DM |
409 | |
410 | /* first do the secondary unicast addresses */ | |
411 | netdev_for_each_uc_addr(ha, dev) { | |
412 | addr[naddr++] = ha->addr; | |
413 | if (--uc_cnt == 0 || naddr >= ARRAY_SIZE(addr)) { | |
060e0c75 | 414 | ret = t4_alloc_mac_filt(pi->adapter, mb, pi->viid, free, |
b8ff05a9 DM |
415 | naddr, addr, filt_idx, &uhash, sleep); |
416 | if (ret < 0) | |
417 | return ret; | |
418 | ||
419 | free = false; | |
420 | naddr = 0; | |
421 | } | |
422 | } | |
423 | ||
424 | /* next set up the multicast addresses */ | |
4a35ecf8 DM |
425 | netdev_for_each_mc_addr(ha, dev) { |
426 | addr[naddr++] = ha->addr; | |
427 | if (--mc_cnt == 0 || naddr >= ARRAY_SIZE(addr)) { | |
060e0c75 | 428 | ret = t4_alloc_mac_filt(pi->adapter, mb, pi->viid, free, |
b8ff05a9 DM |
429 | naddr, addr, filt_idx, &mhash, sleep); |
430 | if (ret < 0) | |
431 | return ret; | |
432 | ||
433 | free = false; | |
434 | naddr = 0; | |
435 | } | |
436 | } | |
437 | ||
060e0c75 | 438 | return t4_set_addr_hash(pi->adapter, mb, pi->viid, uhash != 0, |
b8ff05a9 DM |
439 | uhash | mhash, sleep); |
440 | } | |
441 | ||
3069ee9b VP |
442 | int dbfifo_int_thresh = 10; /* 10 == 640 entry threshold */ |
443 | module_param(dbfifo_int_thresh, int, 0644); | |
444 | MODULE_PARM_DESC(dbfifo_int_thresh, "doorbell fifo interrupt threshold"); | |
445 | ||
446 | int dbfifo_drain_delay = 1000; /* usecs to sleep while draining the dbfifo */ | |
447 | module_param(dbfifo_drain_delay, int, 0644); | |
448 | MODULE_PARM_DESC(dbfifo_drain_delay, | |
449 | "usecs to sleep while draining the dbfifo"); | |
450 | ||
b8ff05a9 DM |
451 | /* |
452 | * Set Rx properties of a port, such as promiscruity, address filters, and MTU. | |
453 | * If @mtu is -1 it is left unchanged. | |
454 | */ | |
455 | static int set_rxmode(struct net_device *dev, int mtu, bool sleep_ok) | |
456 | { | |
457 | int ret; | |
458 | struct port_info *pi = netdev_priv(dev); | |
459 | ||
460 | ret = set_addr_filters(dev, sleep_ok); | |
461 | if (ret == 0) | |
060e0c75 | 462 | ret = t4_set_rxmode(pi->adapter, pi->adapter->fn, pi->viid, mtu, |
b8ff05a9 | 463 | (dev->flags & IFF_PROMISC) ? 1 : 0, |
f8f5aafa | 464 | (dev->flags & IFF_ALLMULTI) ? 1 : 0, 1, -1, |
b8ff05a9 DM |
465 | sleep_ok); |
466 | return ret; | |
467 | } | |
468 | ||
3069ee9b VP |
469 | static struct workqueue_struct *workq; |
470 | ||
b8ff05a9 DM |
471 | /** |
472 | * link_start - enable a port | |
473 | * @dev: the port to enable | |
474 | * | |
475 | * Performs the MAC and PHY actions needed to enable a port. | |
476 | */ | |
477 | static int link_start(struct net_device *dev) | |
478 | { | |
479 | int ret; | |
480 | struct port_info *pi = netdev_priv(dev); | |
060e0c75 | 481 | unsigned int mb = pi->adapter->fn; |
b8ff05a9 DM |
482 | |
483 | /* | |
484 | * We do not set address filters and promiscuity here, the stack does | |
485 | * that step explicitly. | |
486 | */ | |
060e0c75 | 487 | ret = t4_set_rxmode(pi->adapter, mb, pi->viid, dev->mtu, -1, -1, -1, |
19ecae2c | 488 | !!(dev->features & NETIF_F_HW_VLAN_RX), true); |
b8ff05a9 | 489 | if (ret == 0) { |
060e0c75 | 490 | ret = t4_change_mac(pi->adapter, mb, pi->viid, |
b8ff05a9 | 491 | pi->xact_addr_filt, dev->dev_addr, true, |
b6bd29e7 | 492 | true); |
b8ff05a9 DM |
493 | if (ret >= 0) { |
494 | pi->xact_addr_filt = ret; | |
495 | ret = 0; | |
496 | } | |
497 | } | |
498 | if (ret == 0) | |
060e0c75 DM |
499 | ret = t4_link_start(pi->adapter, mb, pi->tx_chan, |
500 | &pi->link_cfg); | |
b8ff05a9 | 501 | if (ret == 0) |
060e0c75 | 502 | ret = t4_enable_vi(pi->adapter, mb, pi->viid, true, true); |
b8ff05a9 DM |
503 | return ret; |
504 | } | |
505 | ||
506 | /* | |
507 | * Response queue handler for the FW event queue. | |
508 | */ | |
509 | static int fwevtq_handler(struct sge_rspq *q, const __be64 *rsp, | |
510 | const struct pkt_gl *gl) | |
511 | { | |
512 | u8 opcode = ((const struct rss_header *)rsp)->opcode; | |
513 | ||
514 | rsp++; /* skip RSS header */ | |
515 | if (likely(opcode == CPL_SGE_EGR_UPDATE)) { | |
516 | const struct cpl_sge_egr_update *p = (void *)rsp; | |
517 | unsigned int qid = EGR_QID(ntohl(p->opcode_qid)); | |
e46dab4d | 518 | struct sge_txq *txq; |
b8ff05a9 | 519 | |
e46dab4d | 520 | txq = q->adap->sge.egr_map[qid - q->adap->sge.egr_start]; |
b8ff05a9 | 521 | txq->restarts++; |
e46dab4d | 522 | if ((u8 *)txq < (u8 *)q->adap->sge.ofldtxq) { |
b8ff05a9 DM |
523 | struct sge_eth_txq *eq; |
524 | ||
525 | eq = container_of(txq, struct sge_eth_txq, q); | |
526 | netif_tx_wake_queue(eq->txq); | |
527 | } else { | |
528 | struct sge_ofld_txq *oq; | |
529 | ||
530 | oq = container_of(txq, struct sge_ofld_txq, q); | |
531 | tasklet_schedule(&oq->qresume_tsk); | |
532 | } | |
533 | } else if (opcode == CPL_FW6_MSG || opcode == CPL_FW4_MSG) { | |
534 | const struct cpl_fw6_msg *p = (void *)rsp; | |
535 | ||
536 | if (p->type == 0) | |
537 | t4_handle_fw_rpl(q->adap, p->data); | |
538 | } else if (opcode == CPL_L2T_WRITE_RPL) { | |
539 | const struct cpl_l2t_write_rpl *p = (void *)rsp; | |
540 | ||
541 | do_l2t_write_rpl(q->adap, p); | |
542 | } else | |
543 | dev_err(q->adap->pdev_dev, | |
544 | "unexpected CPL %#x on FW event queue\n", opcode); | |
545 | return 0; | |
546 | } | |
547 | ||
548 | /** | |
549 | * uldrx_handler - response queue handler for ULD queues | |
550 | * @q: the response queue that received the packet | |
551 | * @rsp: the response queue descriptor holding the offload message | |
552 | * @gl: the gather list of packet fragments | |
553 | * | |
554 | * Deliver an ingress offload packet to a ULD. All processing is done by | |
555 | * the ULD, we just maintain statistics. | |
556 | */ | |
557 | static int uldrx_handler(struct sge_rspq *q, const __be64 *rsp, | |
558 | const struct pkt_gl *gl) | |
559 | { | |
560 | struct sge_ofld_rxq *rxq = container_of(q, struct sge_ofld_rxq, rspq); | |
561 | ||
562 | if (ulds[q->uld].rx_handler(q->adap->uld_handle[q->uld], rsp, gl)) { | |
563 | rxq->stats.nomem++; | |
564 | return -1; | |
565 | } | |
566 | if (gl == NULL) | |
567 | rxq->stats.imm++; | |
568 | else if (gl == CXGB4_MSG_AN) | |
569 | rxq->stats.an++; | |
570 | else | |
571 | rxq->stats.pkts++; | |
572 | return 0; | |
573 | } | |
574 | ||
575 | static void disable_msi(struct adapter *adapter) | |
576 | { | |
577 | if (adapter->flags & USING_MSIX) { | |
578 | pci_disable_msix(adapter->pdev); | |
579 | adapter->flags &= ~USING_MSIX; | |
580 | } else if (adapter->flags & USING_MSI) { | |
581 | pci_disable_msi(adapter->pdev); | |
582 | adapter->flags &= ~USING_MSI; | |
583 | } | |
584 | } | |
585 | ||
586 | /* | |
587 | * Interrupt handler for non-data events used with MSI-X. | |
588 | */ | |
589 | static irqreturn_t t4_nondata_intr(int irq, void *cookie) | |
590 | { | |
591 | struct adapter *adap = cookie; | |
592 | ||
593 | u32 v = t4_read_reg(adap, MYPF_REG(PL_PF_INT_CAUSE)); | |
594 | if (v & PFSW) { | |
595 | adap->swintr = 1; | |
596 | t4_write_reg(adap, MYPF_REG(PL_PF_INT_CAUSE), v); | |
597 | } | |
598 | t4_slow_intr_handler(adap); | |
599 | return IRQ_HANDLED; | |
600 | } | |
601 | ||
602 | /* | |
603 | * Name the MSI-X interrupts. | |
604 | */ | |
605 | static void name_msix_vecs(struct adapter *adap) | |
606 | { | |
ba27816c | 607 | int i, j, msi_idx = 2, n = sizeof(adap->msix_info[0].desc); |
b8ff05a9 DM |
608 | |
609 | /* non-data interrupts */ | |
b1a3c2b6 | 610 | snprintf(adap->msix_info[0].desc, n, "%s", adap->port[0]->name); |
b8ff05a9 DM |
611 | |
612 | /* FW events */ | |
b1a3c2b6 DM |
613 | snprintf(adap->msix_info[1].desc, n, "%s-FWeventq", |
614 | adap->port[0]->name); | |
b8ff05a9 DM |
615 | |
616 | /* Ethernet queues */ | |
617 | for_each_port(adap, j) { | |
618 | struct net_device *d = adap->port[j]; | |
619 | const struct port_info *pi = netdev_priv(d); | |
620 | ||
ba27816c | 621 | for (i = 0; i < pi->nqsets; i++, msi_idx++) |
b8ff05a9 DM |
622 | snprintf(adap->msix_info[msi_idx].desc, n, "%s-Rx%d", |
623 | d->name, i); | |
b8ff05a9 DM |
624 | } |
625 | ||
626 | /* offload queues */ | |
ba27816c DM |
627 | for_each_ofldrxq(&adap->sge, i) |
628 | snprintf(adap->msix_info[msi_idx++].desc, n, "%s-ofld%d", | |
b1a3c2b6 | 629 | adap->port[0]->name, i); |
ba27816c DM |
630 | |
631 | for_each_rdmarxq(&adap->sge, i) | |
632 | snprintf(adap->msix_info[msi_idx++].desc, n, "%s-rdma%d", | |
b1a3c2b6 | 633 | adap->port[0]->name, i); |
b8ff05a9 DM |
634 | } |
635 | ||
636 | static int request_msix_queue_irqs(struct adapter *adap) | |
637 | { | |
638 | struct sge *s = &adap->sge; | |
639 | int err, ethqidx, ofldqidx = 0, rdmaqidx = 0, msi = 2; | |
640 | ||
641 | err = request_irq(adap->msix_info[1].vec, t4_sge_intr_msix, 0, | |
642 | adap->msix_info[1].desc, &s->fw_evtq); | |
643 | if (err) | |
644 | return err; | |
645 | ||
646 | for_each_ethrxq(s, ethqidx) { | |
647 | err = request_irq(adap->msix_info[msi].vec, t4_sge_intr_msix, 0, | |
648 | adap->msix_info[msi].desc, | |
649 | &s->ethrxq[ethqidx].rspq); | |
650 | if (err) | |
651 | goto unwind; | |
652 | msi++; | |
653 | } | |
654 | for_each_ofldrxq(s, ofldqidx) { | |
655 | err = request_irq(adap->msix_info[msi].vec, t4_sge_intr_msix, 0, | |
656 | adap->msix_info[msi].desc, | |
657 | &s->ofldrxq[ofldqidx].rspq); | |
658 | if (err) | |
659 | goto unwind; | |
660 | msi++; | |
661 | } | |
662 | for_each_rdmarxq(s, rdmaqidx) { | |
663 | err = request_irq(adap->msix_info[msi].vec, t4_sge_intr_msix, 0, | |
664 | adap->msix_info[msi].desc, | |
665 | &s->rdmarxq[rdmaqidx].rspq); | |
666 | if (err) | |
667 | goto unwind; | |
668 | msi++; | |
669 | } | |
670 | return 0; | |
671 | ||
672 | unwind: | |
673 | while (--rdmaqidx >= 0) | |
674 | free_irq(adap->msix_info[--msi].vec, | |
675 | &s->rdmarxq[rdmaqidx].rspq); | |
676 | while (--ofldqidx >= 0) | |
677 | free_irq(adap->msix_info[--msi].vec, | |
678 | &s->ofldrxq[ofldqidx].rspq); | |
679 | while (--ethqidx >= 0) | |
680 | free_irq(adap->msix_info[--msi].vec, &s->ethrxq[ethqidx].rspq); | |
681 | free_irq(adap->msix_info[1].vec, &s->fw_evtq); | |
682 | return err; | |
683 | } | |
684 | ||
685 | static void free_msix_queue_irqs(struct adapter *adap) | |
686 | { | |
687 | int i, msi = 2; | |
688 | struct sge *s = &adap->sge; | |
689 | ||
690 | free_irq(adap->msix_info[1].vec, &s->fw_evtq); | |
691 | for_each_ethrxq(s, i) | |
692 | free_irq(adap->msix_info[msi++].vec, &s->ethrxq[i].rspq); | |
693 | for_each_ofldrxq(s, i) | |
694 | free_irq(adap->msix_info[msi++].vec, &s->ofldrxq[i].rspq); | |
695 | for_each_rdmarxq(s, i) | |
696 | free_irq(adap->msix_info[msi++].vec, &s->rdmarxq[i].rspq); | |
697 | } | |
698 | ||
671b0060 DM |
699 | /** |
700 | * write_rss - write the RSS table for a given port | |
701 | * @pi: the port | |
702 | * @queues: array of queue indices for RSS | |
703 | * | |
704 | * Sets up the portion of the HW RSS table for the port's VI to distribute | |
705 | * packets to the Rx queues in @queues. | |
706 | */ | |
707 | static int write_rss(const struct port_info *pi, const u16 *queues) | |
708 | { | |
709 | u16 *rss; | |
710 | int i, err; | |
711 | const struct sge_eth_rxq *q = &pi->adapter->sge.ethrxq[pi->first_qset]; | |
712 | ||
713 | rss = kmalloc(pi->rss_size * sizeof(u16), GFP_KERNEL); | |
714 | if (!rss) | |
715 | return -ENOMEM; | |
716 | ||
717 | /* map the queue indices to queue ids */ | |
718 | for (i = 0; i < pi->rss_size; i++, queues++) | |
719 | rss[i] = q[*queues].rspq.abs_id; | |
720 | ||
060e0c75 DM |
721 | err = t4_config_rss_range(pi->adapter, pi->adapter->fn, pi->viid, 0, |
722 | pi->rss_size, rss, pi->rss_size); | |
671b0060 DM |
723 | kfree(rss); |
724 | return err; | |
725 | } | |
726 | ||
b8ff05a9 DM |
727 | /** |
728 | * setup_rss - configure RSS | |
729 | * @adap: the adapter | |
730 | * | |
671b0060 | 731 | * Sets up RSS for each port. |
b8ff05a9 DM |
732 | */ |
733 | static int setup_rss(struct adapter *adap) | |
734 | { | |
671b0060 | 735 | int i, err; |
b8ff05a9 DM |
736 | |
737 | for_each_port(adap, i) { | |
738 | const struct port_info *pi = adap2pinfo(adap, i); | |
b8ff05a9 | 739 | |
671b0060 | 740 | err = write_rss(pi, pi->rss); |
b8ff05a9 DM |
741 | if (err) |
742 | return err; | |
743 | } | |
744 | return 0; | |
745 | } | |
746 | ||
e46dab4d DM |
747 | /* |
748 | * Return the channel of the ingress queue with the given qid. | |
749 | */ | |
750 | static unsigned int rxq_to_chan(const struct sge *p, unsigned int qid) | |
751 | { | |
752 | qid -= p->ingr_start; | |
753 | return netdev2pinfo(p->ingr_map[qid]->netdev)->tx_chan; | |
754 | } | |
755 | ||
b8ff05a9 DM |
756 | /* |
757 | * Wait until all NAPI handlers are descheduled. | |
758 | */ | |
759 | static void quiesce_rx(struct adapter *adap) | |
760 | { | |
761 | int i; | |
762 | ||
763 | for (i = 0; i < ARRAY_SIZE(adap->sge.ingr_map); i++) { | |
764 | struct sge_rspq *q = adap->sge.ingr_map[i]; | |
765 | ||
766 | if (q && q->handler) | |
767 | napi_disable(&q->napi); | |
768 | } | |
769 | } | |
770 | ||
771 | /* | |
772 | * Enable NAPI scheduling and interrupt generation for all Rx queues. | |
773 | */ | |
774 | static void enable_rx(struct adapter *adap) | |
775 | { | |
776 | int i; | |
777 | ||
778 | for (i = 0; i < ARRAY_SIZE(adap->sge.ingr_map); i++) { | |
779 | struct sge_rspq *q = adap->sge.ingr_map[i]; | |
780 | ||
781 | if (!q) | |
782 | continue; | |
783 | if (q->handler) | |
784 | napi_enable(&q->napi); | |
785 | /* 0-increment GTS to start the timer and enable interrupts */ | |
786 | t4_write_reg(adap, MYPF_REG(SGE_PF_GTS), | |
787 | SEINTARM(q->intr_params) | | |
788 | INGRESSQID(q->cntxt_id)); | |
789 | } | |
790 | } | |
791 | ||
792 | /** | |
793 | * setup_sge_queues - configure SGE Tx/Rx/response queues | |
794 | * @adap: the adapter | |
795 | * | |
796 | * Determines how many sets of SGE queues to use and initializes them. | |
797 | * We support multiple queue sets per port if we have MSI-X, otherwise | |
798 | * just one queue set per port. | |
799 | */ | |
800 | static int setup_sge_queues(struct adapter *adap) | |
801 | { | |
802 | int err, msi_idx, i, j; | |
803 | struct sge *s = &adap->sge; | |
804 | ||
805 | bitmap_zero(s->starving_fl, MAX_EGRQ); | |
806 | bitmap_zero(s->txq_maperr, MAX_EGRQ); | |
807 | ||
808 | if (adap->flags & USING_MSIX) | |
809 | msi_idx = 1; /* vector 0 is for non-queue interrupts */ | |
810 | else { | |
811 | err = t4_sge_alloc_rxq(adap, &s->intrq, false, adap->port[0], 0, | |
812 | NULL, NULL); | |
813 | if (err) | |
814 | return err; | |
815 | msi_idx = -((int)s->intrq.abs_id + 1); | |
816 | } | |
817 | ||
818 | err = t4_sge_alloc_rxq(adap, &s->fw_evtq, true, adap->port[0], | |
819 | msi_idx, NULL, fwevtq_handler); | |
820 | if (err) { | |
821 | freeout: t4_free_sge_resources(adap); | |
822 | return err; | |
823 | } | |
824 | ||
825 | for_each_port(adap, i) { | |
826 | struct net_device *dev = adap->port[i]; | |
827 | struct port_info *pi = netdev_priv(dev); | |
828 | struct sge_eth_rxq *q = &s->ethrxq[pi->first_qset]; | |
829 | struct sge_eth_txq *t = &s->ethtxq[pi->first_qset]; | |
830 | ||
831 | for (j = 0; j < pi->nqsets; j++, q++) { | |
832 | if (msi_idx > 0) | |
833 | msi_idx++; | |
834 | err = t4_sge_alloc_rxq(adap, &q->rspq, false, dev, | |
835 | msi_idx, &q->fl, | |
836 | t4_ethrx_handler); | |
837 | if (err) | |
838 | goto freeout; | |
839 | q->rspq.idx = j; | |
840 | memset(&q->stats, 0, sizeof(q->stats)); | |
841 | } | |
842 | for (j = 0; j < pi->nqsets; j++, t++) { | |
843 | err = t4_sge_alloc_eth_txq(adap, t, dev, | |
844 | netdev_get_tx_queue(dev, j), | |
845 | s->fw_evtq.cntxt_id); | |
846 | if (err) | |
847 | goto freeout; | |
848 | } | |
849 | } | |
850 | ||
851 | j = s->ofldqsets / adap->params.nports; /* ofld queues per channel */ | |
852 | for_each_ofldrxq(s, i) { | |
853 | struct sge_ofld_rxq *q = &s->ofldrxq[i]; | |
854 | struct net_device *dev = adap->port[i / j]; | |
855 | ||
856 | if (msi_idx > 0) | |
857 | msi_idx++; | |
858 | err = t4_sge_alloc_rxq(adap, &q->rspq, false, dev, msi_idx, | |
859 | &q->fl, uldrx_handler); | |
860 | if (err) | |
861 | goto freeout; | |
862 | memset(&q->stats, 0, sizeof(q->stats)); | |
863 | s->ofld_rxq[i] = q->rspq.abs_id; | |
864 | err = t4_sge_alloc_ofld_txq(adap, &s->ofldtxq[i], dev, | |
865 | s->fw_evtq.cntxt_id); | |
866 | if (err) | |
867 | goto freeout; | |
868 | } | |
869 | ||
870 | for_each_rdmarxq(s, i) { | |
871 | struct sge_ofld_rxq *q = &s->rdmarxq[i]; | |
872 | ||
873 | if (msi_idx > 0) | |
874 | msi_idx++; | |
875 | err = t4_sge_alloc_rxq(adap, &q->rspq, false, adap->port[i], | |
876 | msi_idx, &q->fl, uldrx_handler); | |
877 | if (err) | |
878 | goto freeout; | |
879 | memset(&q->stats, 0, sizeof(q->stats)); | |
880 | s->rdma_rxq[i] = q->rspq.abs_id; | |
881 | } | |
882 | ||
883 | for_each_port(adap, i) { | |
884 | /* | |
885 | * Note that ->rdmarxq[i].rspq.cntxt_id below is 0 if we don't | |
886 | * have RDMA queues, and that's the right value. | |
887 | */ | |
888 | err = t4_sge_alloc_ctrl_txq(adap, &s->ctrlq[i], adap->port[i], | |
889 | s->fw_evtq.cntxt_id, | |
890 | s->rdmarxq[i].rspq.cntxt_id); | |
891 | if (err) | |
892 | goto freeout; | |
893 | } | |
894 | ||
895 | t4_write_reg(adap, MPS_TRC_RSS_CONTROL, | |
896 | RSSCONTROL(netdev2pinfo(adap->port[0])->tx_chan) | | |
897 | QUEUENUMBER(s->ethrxq[0].rspq.abs_id)); | |
898 | return 0; | |
899 | } | |
900 | ||
901 | /* | |
902 | * Returns 0 if new FW was successfully loaded, a positive errno if a load was | |
903 | * started but failed, and a negative errno if flash load couldn't start. | |
904 | */ | |
905 | static int upgrade_fw(struct adapter *adap) | |
906 | { | |
907 | int ret; | |
908 | u32 vers; | |
909 | const struct fw_hdr *hdr; | |
910 | const struct firmware *fw; | |
911 | struct device *dev = adap->pdev_dev; | |
912 | ||
913 | ret = request_firmware(&fw, FW_FNAME, dev); | |
914 | if (ret < 0) { | |
915 | dev_err(dev, "unable to load firmware image " FW_FNAME | |
916 | ", error %d\n", ret); | |
917 | return ret; | |
918 | } | |
919 | ||
920 | hdr = (const struct fw_hdr *)fw->data; | |
921 | vers = ntohl(hdr->fw_ver); | |
922 | if (FW_HDR_FW_VER_MAJOR_GET(vers) != FW_VERSION_MAJOR) { | |
923 | ret = -EINVAL; /* wrong major version, won't do */ | |
924 | goto out; | |
925 | } | |
926 | ||
927 | /* | |
928 | * If the flash FW is unusable or we found something newer, load it. | |
929 | */ | |
930 | if (FW_HDR_FW_VER_MAJOR_GET(adap->params.fw_vers) != FW_VERSION_MAJOR || | |
931 | vers > adap->params.fw_vers) { | |
26f7cbc0 VP |
932 | dev_info(dev, "upgrading firmware ...\n"); |
933 | ret = t4_fw_upgrade(adap, adap->mbox, fw->data, fw->size, | |
934 | /*force=*/false); | |
b8ff05a9 | 935 | if (!ret) |
26f7cbc0 VP |
936 | dev_info(dev, "firmware successfully upgraded to " |
937 | FW_FNAME " (%d.%d.%d.%d)\n", | |
938 | FW_HDR_FW_VER_MAJOR_GET(vers), | |
939 | FW_HDR_FW_VER_MINOR_GET(vers), | |
940 | FW_HDR_FW_VER_MICRO_GET(vers), | |
941 | FW_HDR_FW_VER_BUILD_GET(vers)); | |
942 | else | |
943 | dev_err(dev, "firmware upgrade failed! err=%d\n", -ret); | |
1648a22b VP |
944 | } else { |
945 | /* | |
946 | * Tell our caller that we didn't upgrade the firmware. | |
947 | */ | |
948 | ret = -EINVAL; | |
b8ff05a9 | 949 | } |
1648a22b | 950 | |
b8ff05a9 DM |
951 | out: release_firmware(fw); |
952 | return ret; | |
953 | } | |
954 | ||
955 | /* | |
956 | * Allocate a chunk of memory using kmalloc or, if that fails, vmalloc. | |
957 | * The allocated memory is cleared. | |
958 | */ | |
959 | void *t4_alloc_mem(size_t size) | |
960 | { | |
89bf67f1 | 961 | void *p = kzalloc(size, GFP_KERNEL); |
b8ff05a9 DM |
962 | |
963 | if (!p) | |
89bf67f1 | 964 | p = vzalloc(size); |
b8ff05a9 DM |
965 | return p; |
966 | } | |
967 | ||
968 | /* | |
969 | * Free memory allocated through alloc_mem(). | |
970 | */ | |
31b9c19b | 971 | static void t4_free_mem(void *addr) |
b8ff05a9 DM |
972 | { |
973 | if (is_vmalloc_addr(addr)) | |
974 | vfree(addr); | |
975 | else | |
976 | kfree(addr); | |
977 | } | |
978 | ||
979 | static inline int is_offload(const struct adapter *adap) | |
980 | { | |
981 | return adap->params.offload; | |
982 | } | |
983 | ||
984 | /* | |
985 | * Implementation of ethtool operations. | |
986 | */ | |
987 | ||
988 | static u32 get_msglevel(struct net_device *dev) | |
989 | { | |
990 | return netdev2adap(dev)->msg_enable; | |
991 | } | |
992 | ||
993 | static void set_msglevel(struct net_device *dev, u32 val) | |
994 | { | |
995 | netdev2adap(dev)->msg_enable = val; | |
996 | } | |
997 | ||
998 | static char stats_strings[][ETH_GSTRING_LEN] = { | |
999 | "TxOctetsOK ", | |
1000 | "TxFramesOK ", | |
1001 | "TxBroadcastFrames ", | |
1002 | "TxMulticastFrames ", | |
1003 | "TxUnicastFrames ", | |
1004 | "TxErrorFrames ", | |
1005 | ||
1006 | "TxFrames64 ", | |
1007 | "TxFrames65To127 ", | |
1008 | "TxFrames128To255 ", | |
1009 | "TxFrames256To511 ", | |
1010 | "TxFrames512To1023 ", | |
1011 | "TxFrames1024To1518 ", | |
1012 | "TxFrames1519ToMax ", | |
1013 | ||
1014 | "TxFramesDropped ", | |
1015 | "TxPauseFrames ", | |
1016 | "TxPPP0Frames ", | |
1017 | "TxPPP1Frames ", | |
1018 | "TxPPP2Frames ", | |
1019 | "TxPPP3Frames ", | |
1020 | "TxPPP4Frames ", | |
1021 | "TxPPP5Frames ", | |
1022 | "TxPPP6Frames ", | |
1023 | "TxPPP7Frames ", | |
1024 | ||
1025 | "RxOctetsOK ", | |
1026 | "RxFramesOK ", | |
1027 | "RxBroadcastFrames ", | |
1028 | "RxMulticastFrames ", | |
1029 | "RxUnicastFrames ", | |
1030 | ||
1031 | "RxFramesTooLong ", | |
1032 | "RxJabberErrors ", | |
1033 | "RxFCSErrors ", | |
1034 | "RxLengthErrors ", | |
1035 | "RxSymbolErrors ", | |
1036 | "RxRuntFrames ", | |
1037 | ||
1038 | "RxFrames64 ", | |
1039 | "RxFrames65To127 ", | |
1040 | "RxFrames128To255 ", | |
1041 | "RxFrames256To511 ", | |
1042 | "RxFrames512To1023 ", | |
1043 | "RxFrames1024To1518 ", | |
1044 | "RxFrames1519ToMax ", | |
1045 | ||
1046 | "RxPauseFrames ", | |
1047 | "RxPPP0Frames ", | |
1048 | "RxPPP1Frames ", | |
1049 | "RxPPP2Frames ", | |
1050 | "RxPPP3Frames ", | |
1051 | "RxPPP4Frames ", | |
1052 | "RxPPP5Frames ", | |
1053 | "RxPPP6Frames ", | |
1054 | "RxPPP7Frames ", | |
1055 | ||
1056 | "RxBG0FramesDropped ", | |
1057 | "RxBG1FramesDropped ", | |
1058 | "RxBG2FramesDropped ", | |
1059 | "RxBG3FramesDropped ", | |
1060 | "RxBG0FramesTrunc ", | |
1061 | "RxBG1FramesTrunc ", | |
1062 | "RxBG2FramesTrunc ", | |
1063 | "RxBG3FramesTrunc ", | |
1064 | ||
1065 | "TSO ", | |
1066 | "TxCsumOffload ", | |
1067 | "RxCsumGood ", | |
1068 | "VLANextractions ", | |
1069 | "VLANinsertions ", | |
4a6346d4 DM |
1070 | "GROpackets ", |
1071 | "GROmerged ", | |
b8ff05a9 DM |
1072 | }; |
1073 | ||
1074 | static int get_sset_count(struct net_device *dev, int sset) | |
1075 | { | |
1076 | switch (sset) { | |
1077 | case ETH_SS_STATS: | |
1078 | return ARRAY_SIZE(stats_strings); | |
1079 | default: | |
1080 | return -EOPNOTSUPP; | |
1081 | } | |
1082 | } | |
1083 | ||
1084 | #define T4_REGMAP_SIZE (160 * 1024) | |
1085 | ||
1086 | static int get_regs_len(struct net_device *dev) | |
1087 | { | |
1088 | return T4_REGMAP_SIZE; | |
1089 | } | |
1090 | ||
1091 | static int get_eeprom_len(struct net_device *dev) | |
1092 | { | |
1093 | return EEPROMSIZE; | |
1094 | } | |
1095 | ||
1096 | static void get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info) | |
1097 | { | |
1098 | struct adapter *adapter = netdev2adap(dev); | |
1099 | ||
23020ab3 RJ |
1100 | strlcpy(info->driver, KBUILD_MODNAME, sizeof(info->driver)); |
1101 | strlcpy(info->version, DRV_VERSION, sizeof(info->version)); | |
1102 | strlcpy(info->bus_info, pci_name(adapter->pdev), | |
1103 | sizeof(info->bus_info)); | |
b8ff05a9 | 1104 | |
84b40501 | 1105 | if (adapter->params.fw_vers) |
b8ff05a9 DM |
1106 | snprintf(info->fw_version, sizeof(info->fw_version), |
1107 | "%u.%u.%u.%u, TP %u.%u.%u.%u", | |
1108 | FW_HDR_FW_VER_MAJOR_GET(adapter->params.fw_vers), | |
1109 | FW_HDR_FW_VER_MINOR_GET(adapter->params.fw_vers), | |
1110 | FW_HDR_FW_VER_MICRO_GET(adapter->params.fw_vers), | |
1111 | FW_HDR_FW_VER_BUILD_GET(adapter->params.fw_vers), | |
1112 | FW_HDR_FW_VER_MAJOR_GET(adapter->params.tp_vers), | |
1113 | FW_HDR_FW_VER_MINOR_GET(adapter->params.tp_vers), | |
1114 | FW_HDR_FW_VER_MICRO_GET(adapter->params.tp_vers), | |
1115 | FW_HDR_FW_VER_BUILD_GET(adapter->params.tp_vers)); | |
1116 | } | |
1117 | ||
1118 | static void get_strings(struct net_device *dev, u32 stringset, u8 *data) | |
1119 | { | |
1120 | if (stringset == ETH_SS_STATS) | |
1121 | memcpy(data, stats_strings, sizeof(stats_strings)); | |
1122 | } | |
1123 | ||
1124 | /* | |
1125 | * port stats maintained per queue of the port. They should be in the same | |
1126 | * order as in stats_strings above. | |
1127 | */ | |
1128 | struct queue_port_stats { | |
1129 | u64 tso; | |
1130 | u64 tx_csum; | |
1131 | u64 rx_csum; | |
1132 | u64 vlan_ex; | |
1133 | u64 vlan_ins; | |
4a6346d4 DM |
1134 | u64 gro_pkts; |
1135 | u64 gro_merged; | |
b8ff05a9 DM |
1136 | }; |
1137 | ||
1138 | static void collect_sge_port_stats(const struct adapter *adap, | |
1139 | const struct port_info *p, struct queue_port_stats *s) | |
1140 | { | |
1141 | int i; | |
1142 | const struct sge_eth_txq *tx = &adap->sge.ethtxq[p->first_qset]; | |
1143 | const struct sge_eth_rxq *rx = &adap->sge.ethrxq[p->first_qset]; | |
1144 | ||
1145 | memset(s, 0, sizeof(*s)); | |
1146 | for (i = 0; i < p->nqsets; i++, rx++, tx++) { | |
1147 | s->tso += tx->tso; | |
1148 | s->tx_csum += tx->tx_cso; | |
1149 | s->rx_csum += rx->stats.rx_cso; | |
1150 | s->vlan_ex += rx->stats.vlan_ex; | |
1151 | s->vlan_ins += tx->vlan_ins; | |
4a6346d4 DM |
1152 | s->gro_pkts += rx->stats.lro_pkts; |
1153 | s->gro_merged += rx->stats.lro_merged; | |
b8ff05a9 DM |
1154 | } |
1155 | } | |
1156 | ||
1157 | static void get_stats(struct net_device *dev, struct ethtool_stats *stats, | |
1158 | u64 *data) | |
1159 | { | |
1160 | struct port_info *pi = netdev_priv(dev); | |
1161 | struct adapter *adapter = pi->adapter; | |
1162 | ||
1163 | t4_get_port_stats(adapter, pi->tx_chan, (struct port_stats *)data); | |
1164 | ||
1165 | data += sizeof(struct port_stats) / sizeof(u64); | |
1166 | collect_sge_port_stats(adapter, pi, (struct queue_port_stats *)data); | |
1167 | } | |
1168 | ||
1169 | /* | |
1170 | * Return a version number to identify the type of adapter. The scheme is: | |
1171 | * - bits 0..9: chip version | |
1172 | * - bits 10..15: chip revision | |
835bb606 | 1173 | * - bits 16..23: register dump version |
b8ff05a9 DM |
1174 | */ |
1175 | static inline unsigned int mk_adap_vers(const struct adapter *ap) | |
1176 | { | |
835bb606 | 1177 | return 4 | (ap->params.rev << 10) | (1 << 16); |
b8ff05a9 DM |
1178 | } |
1179 | ||
1180 | static void reg_block_dump(struct adapter *ap, void *buf, unsigned int start, | |
1181 | unsigned int end) | |
1182 | { | |
1183 | u32 *p = buf + start; | |
1184 | ||
1185 | for ( ; start <= end; start += sizeof(u32)) | |
1186 | *p++ = t4_read_reg(ap, start); | |
1187 | } | |
1188 | ||
1189 | static void get_regs(struct net_device *dev, struct ethtool_regs *regs, | |
1190 | void *buf) | |
1191 | { | |
1192 | static const unsigned int reg_ranges[] = { | |
1193 | 0x1008, 0x1108, | |
1194 | 0x1180, 0x11b4, | |
1195 | 0x11fc, 0x123c, | |
1196 | 0x1300, 0x173c, | |
1197 | 0x1800, 0x18fc, | |
1198 | 0x3000, 0x30d8, | |
1199 | 0x30e0, 0x5924, | |
1200 | 0x5960, 0x59d4, | |
1201 | 0x5a00, 0x5af8, | |
1202 | 0x6000, 0x6098, | |
1203 | 0x6100, 0x6150, | |
1204 | 0x6200, 0x6208, | |
1205 | 0x6240, 0x6248, | |
1206 | 0x6280, 0x6338, | |
1207 | 0x6370, 0x638c, | |
1208 | 0x6400, 0x643c, | |
1209 | 0x6500, 0x6524, | |
1210 | 0x6a00, 0x6a38, | |
1211 | 0x6a60, 0x6a78, | |
1212 | 0x6b00, 0x6b84, | |
1213 | 0x6bf0, 0x6c84, | |
1214 | 0x6cf0, 0x6d84, | |
1215 | 0x6df0, 0x6e84, | |
1216 | 0x6ef0, 0x6f84, | |
1217 | 0x6ff0, 0x7084, | |
1218 | 0x70f0, 0x7184, | |
1219 | 0x71f0, 0x7284, | |
1220 | 0x72f0, 0x7384, | |
1221 | 0x73f0, 0x7450, | |
1222 | 0x7500, 0x7530, | |
1223 | 0x7600, 0x761c, | |
1224 | 0x7680, 0x76cc, | |
1225 | 0x7700, 0x7798, | |
1226 | 0x77c0, 0x77fc, | |
1227 | 0x7900, 0x79fc, | |
1228 | 0x7b00, 0x7c38, | |
1229 | 0x7d00, 0x7efc, | |
1230 | 0x8dc0, 0x8e1c, | |
1231 | 0x8e30, 0x8e78, | |
1232 | 0x8ea0, 0x8f6c, | |
1233 | 0x8fc0, 0x9074, | |
1234 | 0x90fc, 0x90fc, | |
1235 | 0x9400, 0x9458, | |
1236 | 0x9600, 0x96bc, | |
1237 | 0x9800, 0x9808, | |
1238 | 0x9820, 0x983c, | |
1239 | 0x9850, 0x9864, | |
1240 | 0x9c00, 0x9c6c, | |
1241 | 0x9c80, 0x9cec, | |
1242 | 0x9d00, 0x9d6c, | |
1243 | 0x9d80, 0x9dec, | |
1244 | 0x9e00, 0x9e6c, | |
1245 | 0x9e80, 0x9eec, | |
1246 | 0x9f00, 0x9f6c, | |
1247 | 0x9f80, 0x9fec, | |
1248 | 0xd004, 0xd03c, | |
1249 | 0xdfc0, 0xdfe0, | |
1250 | 0xe000, 0xea7c, | |
1251 | 0xf000, 0x11190, | |
835bb606 DM |
1252 | 0x19040, 0x1906c, |
1253 | 0x19078, 0x19080, | |
1254 | 0x1908c, 0x19124, | |
b8ff05a9 DM |
1255 | 0x19150, 0x191b0, |
1256 | 0x191d0, 0x191e8, | |
1257 | 0x19238, 0x1924c, | |
1258 | 0x193f8, 0x19474, | |
1259 | 0x19490, 0x194f8, | |
1260 | 0x19800, 0x19f30, | |
1261 | 0x1a000, 0x1a06c, | |
1262 | 0x1a0b0, 0x1a120, | |
1263 | 0x1a128, 0x1a138, | |
1264 | 0x1a190, 0x1a1c4, | |
1265 | 0x1a1fc, 0x1a1fc, | |
1266 | 0x1e040, 0x1e04c, | |
835bb606 | 1267 | 0x1e284, 0x1e28c, |
b8ff05a9 DM |
1268 | 0x1e2c0, 0x1e2c0, |
1269 | 0x1e2e0, 0x1e2e0, | |
1270 | 0x1e300, 0x1e384, | |
1271 | 0x1e3c0, 0x1e3c8, | |
1272 | 0x1e440, 0x1e44c, | |
835bb606 | 1273 | 0x1e684, 0x1e68c, |
b8ff05a9 DM |
1274 | 0x1e6c0, 0x1e6c0, |
1275 | 0x1e6e0, 0x1e6e0, | |
1276 | 0x1e700, 0x1e784, | |
1277 | 0x1e7c0, 0x1e7c8, | |
1278 | 0x1e840, 0x1e84c, | |
835bb606 | 1279 | 0x1ea84, 0x1ea8c, |
b8ff05a9 DM |
1280 | 0x1eac0, 0x1eac0, |
1281 | 0x1eae0, 0x1eae0, | |
1282 | 0x1eb00, 0x1eb84, | |
1283 | 0x1ebc0, 0x1ebc8, | |
1284 | 0x1ec40, 0x1ec4c, | |
835bb606 | 1285 | 0x1ee84, 0x1ee8c, |
b8ff05a9 DM |
1286 | 0x1eec0, 0x1eec0, |
1287 | 0x1eee0, 0x1eee0, | |
1288 | 0x1ef00, 0x1ef84, | |
1289 | 0x1efc0, 0x1efc8, | |
1290 | 0x1f040, 0x1f04c, | |
835bb606 | 1291 | 0x1f284, 0x1f28c, |
b8ff05a9 DM |
1292 | 0x1f2c0, 0x1f2c0, |
1293 | 0x1f2e0, 0x1f2e0, | |
1294 | 0x1f300, 0x1f384, | |
1295 | 0x1f3c0, 0x1f3c8, | |
1296 | 0x1f440, 0x1f44c, | |
835bb606 | 1297 | 0x1f684, 0x1f68c, |
b8ff05a9 DM |
1298 | 0x1f6c0, 0x1f6c0, |
1299 | 0x1f6e0, 0x1f6e0, | |
1300 | 0x1f700, 0x1f784, | |
1301 | 0x1f7c0, 0x1f7c8, | |
1302 | 0x1f840, 0x1f84c, | |
835bb606 | 1303 | 0x1fa84, 0x1fa8c, |
b8ff05a9 DM |
1304 | 0x1fac0, 0x1fac0, |
1305 | 0x1fae0, 0x1fae0, | |
1306 | 0x1fb00, 0x1fb84, | |
1307 | 0x1fbc0, 0x1fbc8, | |
1308 | 0x1fc40, 0x1fc4c, | |
835bb606 | 1309 | 0x1fe84, 0x1fe8c, |
b8ff05a9 DM |
1310 | 0x1fec0, 0x1fec0, |
1311 | 0x1fee0, 0x1fee0, | |
1312 | 0x1ff00, 0x1ff84, | |
1313 | 0x1ffc0, 0x1ffc8, | |
1314 | 0x20000, 0x2002c, | |
1315 | 0x20100, 0x2013c, | |
1316 | 0x20190, 0x201c8, | |
1317 | 0x20200, 0x20318, | |
1318 | 0x20400, 0x20528, | |
1319 | 0x20540, 0x20614, | |
1320 | 0x21000, 0x21040, | |
1321 | 0x2104c, 0x21060, | |
1322 | 0x210c0, 0x210ec, | |
1323 | 0x21200, 0x21268, | |
1324 | 0x21270, 0x21284, | |
1325 | 0x212fc, 0x21388, | |
1326 | 0x21400, 0x21404, | |
1327 | 0x21500, 0x21518, | |
1328 | 0x2152c, 0x2153c, | |
1329 | 0x21550, 0x21554, | |
1330 | 0x21600, 0x21600, | |
1331 | 0x21608, 0x21628, | |
1332 | 0x21630, 0x2163c, | |
1333 | 0x21700, 0x2171c, | |
1334 | 0x21780, 0x2178c, | |
1335 | 0x21800, 0x21c38, | |
1336 | 0x21c80, 0x21d7c, | |
1337 | 0x21e00, 0x21e04, | |
1338 | 0x22000, 0x2202c, | |
1339 | 0x22100, 0x2213c, | |
1340 | 0x22190, 0x221c8, | |
1341 | 0x22200, 0x22318, | |
1342 | 0x22400, 0x22528, | |
1343 | 0x22540, 0x22614, | |
1344 | 0x23000, 0x23040, | |
1345 | 0x2304c, 0x23060, | |
1346 | 0x230c0, 0x230ec, | |
1347 | 0x23200, 0x23268, | |
1348 | 0x23270, 0x23284, | |
1349 | 0x232fc, 0x23388, | |
1350 | 0x23400, 0x23404, | |
1351 | 0x23500, 0x23518, | |
1352 | 0x2352c, 0x2353c, | |
1353 | 0x23550, 0x23554, | |
1354 | 0x23600, 0x23600, | |
1355 | 0x23608, 0x23628, | |
1356 | 0x23630, 0x2363c, | |
1357 | 0x23700, 0x2371c, | |
1358 | 0x23780, 0x2378c, | |
1359 | 0x23800, 0x23c38, | |
1360 | 0x23c80, 0x23d7c, | |
1361 | 0x23e00, 0x23e04, | |
1362 | 0x24000, 0x2402c, | |
1363 | 0x24100, 0x2413c, | |
1364 | 0x24190, 0x241c8, | |
1365 | 0x24200, 0x24318, | |
1366 | 0x24400, 0x24528, | |
1367 | 0x24540, 0x24614, | |
1368 | 0x25000, 0x25040, | |
1369 | 0x2504c, 0x25060, | |
1370 | 0x250c0, 0x250ec, | |
1371 | 0x25200, 0x25268, | |
1372 | 0x25270, 0x25284, | |
1373 | 0x252fc, 0x25388, | |
1374 | 0x25400, 0x25404, | |
1375 | 0x25500, 0x25518, | |
1376 | 0x2552c, 0x2553c, | |
1377 | 0x25550, 0x25554, | |
1378 | 0x25600, 0x25600, | |
1379 | 0x25608, 0x25628, | |
1380 | 0x25630, 0x2563c, | |
1381 | 0x25700, 0x2571c, | |
1382 | 0x25780, 0x2578c, | |
1383 | 0x25800, 0x25c38, | |
1384 | 0x25c80, 0x25d7c, | |
1385 | 0x25e00, 0x25e04, | |
1386 | 0x26000, 0x2602c, | |
1387 | 0x26100, 0x2613c, | |
1388 | 0x26190, 0x261c8, | |
1389 | 0x26200, 0x26318, | |
1390 | 0x26400, 0x26528, | |
1391 | 0x26540, 0x26614, | |
1392 | 0x27000, 0x27040, | |
1393 | 0x2704c, 0x27060, | |
1394 | 0x270c0, 0x270ec, | |
1395 | 0x27200, 0x27268, | |
1396 | 0x27270, 0x27284, | |
1397 | 0x272fc, 0x27388, | |
1398 | 0x27400, 0x27404, | |
1399 | 0x27500, 0x27518, | |
1400 | 0x2752c, 0x2753c, | |
1401 | 0x27550, 0x27554, | |
1402 | 0x27600, 0x27600, | |
1403 | 0x27608, 0x27628, | |
1404 | 0x27630, 0x2763c, | |
1405 | 0x27700, 0x2771c, | |
1406 | 0x27780, 0x2778c, | |
1407 | 0x27800, 0x27c38, | |
1408 | 0x27c80, 0x27d7c, | |
1409 | 0x27e00, 0x27e04 | |
1410 | }; | |
1411 | ||
1412 | int i; | |
1413 | struct adapter *ap = netdev2adap(dev); | |
1414 | ||
1415 | regs->version = mk_adap_vers(ap); | |
1416 | ||
1417 | memset(buf, 0, T4_REGMAP_SIZE); | |
1418 | for (i = 0; i < ARRAY_SIZE(reg_ranges); i += 2) | |
1419 | reg_block_dump(ap, buf, reg_ranges[i], reg_ranges[i + 1]); | |
1420 | } | |
1421 | ||
1422 | static int restart_autoneg(struct net_device *dev) | |
1423 | { | |
1424 | struct port_info *p = netdev_priv(dev); | |
1425 | ||
1426 | if (!netif_running(dev)) | |
1427 | return -EAGAIN; | |
1428 | if (p->link_cfg.autoneg != AUTONEG_ENABLE) | |
1429 | return -EINVAL; | |
060e0c75 | 1430 | t4_restart_aneg(p->adapter, p->adapter->fn, p->tx_chan); |
b8ff05a9 DM |
1431 | return 0; |
1432 | } | |
1433 | ||
c5e06360 DM |
1434 | static int identify_port(struct net_device *dev, |
1435 | enum ethtool_phys_id_state state) | |
b8ff05a9 | 1436 | { |
c5e06360 | 1437 | unsigned int val; |
060e0c75 DM |
1438 | struct adapter *adap = netdev2adap(dev); |
1439 | ||
c5e06360 DM |
1440 | if (state == ETHTOOL_ID_ACTIVE) |
1441 | val = 0xffff; | |
1442 | else if (state == ETHTOOL_ID_INACTIVE) | |
1443 | val = 0; | |
1444 | else | |
1445 | return -EINVAL; | |
b8ff05a9 | 1446 | |
c5e06360 | 1447 | return t4_identify_port(adap, adap->fn, netdev2pinfo(dev)->viid, val); |
b8ff05a9 DM |
1448 | } |
1449 | ||
1450 | static unsigned int from_fw_linkcaps(unsigned int type, unsigned int caps) | |
1451 | { | |
1452 | unsigned int v = 0; | |
1453 | ||
a0881cab DM |
1454 | if (type == FW_PORT_TYPE_BT_SGMII || type == FW_PORT_TYPE_BT_XFI || |
1455 | type == FW_PORT_TYPE_BT_XAUI) { | |
b8ff05a9 DM |
1456 | v |= SUPPORTED_TP; |
1457 | if (caps & FW_PORT_CAP_SPEED_100M) | |
1458 | v |= SUPPORTED_100baseT_Full; | |
1459 | if (caps & FW_PORT_CAP_SPEED_1G) | |
1460 | v |= SUPPORTED_1000baseT_Full; | |
1461 | if (caps & FW_PORT_CAP_SPEED_10G) | |
1462 | v |= SUPPORTED_10000baseT_Full; | |
1463 | } else if (type == FW_PORT_TYPE_KX4 || type == FW_PORT_TYPE_KX) { | |
1464 | v |= SUPPORTED_Backplane; | |
1465 | if (caps & FW_PORT_CAP_SPEED_1G) | |
1466 | v |= SUPPORTED_1000baseKX_Full; | |
1467 | if (caps & FW_PORT_CAP_SPEED_10G) | |
1468 | v |= SUPPORTED_10000baseKX4_Full; | |
1469 | } else if (type == FW_PORT_TYPE_KR) | |
1470 | v |= SUPPORTED_Backplane | SUPPORTED_10000baseKR_Full; | |
a0881cab | 1471 | else if (type == FW_PORT_TYPE_BP_AP) |
7d5e77aa DM |
1472 | v |= SUPPORTED_Backplane | SUPPORTED_10000baseR_FEC | |
1473 | SUPPORTED_10000baseKR_Full | SUPPORTED_1000baseKX_Full; | |
1474 | else if (type == FW_PORT_TYPE_BP4_AP) | |
1475 | v |= SUPPORTED_Backplane | SUPPORTED_10000baseR_FEC | | |
1476 | SUPPORTED_10000baseKR_Full | SUPPORTED_1000baseKX_Full | | |
1477 | SUPPORTED_10000baseKX4_Full; | |
a0881cab DM |
1478 | else if (type == FW_PORT_TYPE_FIBER_XFI || |
1479 | type == FW_PORT_TYPE_FIBER_XAUI || type == FW_PORT_TYPE_SFP) | |
b8ff05a9 DM |
1480 | v |= SUPPORTED_FIBRE; |
1481 | ||
1482 | if (caps & FW_PORT_CAP_ANEG) | |
1483 | v |= SUPPORTED_Autoneg; | |
1484 | return v; | |
1485 | } | |
1486 | ||
1487 | static unsigned int to_fw_linkcaps(unsigned int caps) | |
1488 | { | |
1489 | unsigned int v = 0; | |
1490 | ||
1491 | if (caps & ADVERTISED_100baseT_Full) | |
1492 | v |= FW_PORT_CAP_SPEED_100M; | |
1493 | if (caps & ADVERTISED_1000baseT_Full) | |
1494 | v |= FW_PORT_CAP_SPEED_1G; | |
1495 | if (caps & ADVERTISED_10000baseT_Full) | |
1496 | v |= FW_PORT_CAP_SPEED_10G; | |
1497 | return v; | |
1498 | } | |
1499 | ||
1500 | static int get_settings(struct net_device *dev, struct ethtool_cmd *cmd) | |
1501 | { | |
1502 | const struct port_info *p = netdev_priv(dev); | |
1503 | ||
1504 | if (p->port_type == FW_PORT_TYPE_BT_SGMII || | |
a0881cab | 1505 | p->port_type == FW_PORT_TYPE_BT_XFI || |
b8ff05a9 DM |
1506 | p->port_type == FW_PORT_TYPE_BT_XAUI) |
1507 | cmd->port = PORT_TP; | |
a0881cab DM |
1508 | else if (p->port_type == FW_PORT_TYPE_FIBER_XFI || |
1509 | p->port_type == FW_PORT_TYPE_FIBER_XAUI) | |
b8ff05a9 | 1510 | cmd->port = PORT_FIBRE; |
a0881cab DM |
1511 | else if (p->port_type == FW_PORT_TYPE_SFP) { |
1512 | if (p->mod_type == FW_PORT_MOD_TYPE_TWINAX_PASSIVE || | |
1513 | p->mod_type == FW_PORT_MOD_TYPE_TWINAX_ACTIVE) | |
1514 | cmd->port = PORT_DA; | |
1515 | else | |
1516 | cmd->port = PORT_FIBRE; | |
1517 | } else | |
b8ff05a9 DM |
1518 | cmd->port = PORT_OTHER; |
1519 | ||
1520 | if (p->mdio_addr >= 0) { | |
1521 | cmd->phy_address = p->mdio_addr; | |
1522 | cmd->transceiver = XCVR_EXTERNAL; | |
1523 | cmd->mdio_support = p->port_type == FW_PORT_TYPE_BT_SGMII ? | |
1524 | MDIO_SUPPORTS_C22 : MDIO_SUPPORTS_C45; | |
1525 | } else { | |
1526 | cmd->phy_address = 0; /* not really, but no better option */ | |
1527 | cmd->transceiver = XCVR_INTERNAL; | |
1528 | cmd->mdio_support = 0; | |
1529 | } | |
1530 | ||
1531 | cmd->supported = from_fw_linkcaps(p->port_type, p->link_cfg.supported); | |
1532 | cmd->advertising = from_fw_linkcaps(p->port_type, | |
1533 | p->link_cfg.advertising); | |
70739497 DD |
1534 | ethtool_cmd_speed_set(cmd, |
1535 | netif_carrier_ok(dev) ? p->link_cfg.speed : 0); | |
b8ff05a9 DM |
1536 | cmd->duplex = DUPLEX_FULL; |
1537 | cmd->autoneg = p->link_cfg.autoneg; | |
1538 | cmd->maxtxpkt = 0; | |
1539 | cmd->maxrxpkt = 0; | |
1540 | return 0; | |
1541 | } | |
1542 | ||
1543 | static unsigned int speed_to_caps(int speed) | |
1544 | { | |
1545 | if (speed == SPEED_100) | |
1546 | return FW_PORT_CAP_SPEED_100M; | |
1547 | if (speed == SPEED_1000) | |
1548 | return FW_PORT_CAP_SPEED_1G; | |
1549 | if (speed == SPEED_10000) | |
1550 | return FW_PORT_CAP_SPEED_10G; | |
1551 | return 0; | |
1552 | } | |
1553 | ||
1554 | static int set_settings(struct net_device *dev, struct ethtool_cmd *cmd) | |
1555 | { | |
1556 | unsigned int cap; | |
1557 | struct port_info *p = netdev_priv(dev); | |
1558 | struct link_config *lc = &p->link_cfg; | |
25db0338 | 1559 | u32 speed = ethtool_cmd_speed(cmd); |
b8ff05a9 DM |
1560 | |
1561 | if (cmd->duplex != DUPLEX_FULL) /* only full-duplex supported */ | |
1562 | return -EINVAL; | |
1563 | ||
1564 | if (!(lc->supported & FW_PORT_CAP_ANEG)) { | |
1565 | /* | |
1566 | * PHY offers a single speed. See if that's what's | |
1567 | * being requested. | |
1568 | */ | |
1569 | if (cmd->autoneg == AUTONEG_DISABLE && | |
25db0338 DD |
1570 | (lc->supported & speed_to_caps(speed))) |
1571 | return 0; | |
b8ff05a9 DM |
1572 | return -EINVAL; |
1573 | } | |
1574 | ||
1575 | if (cmd->autoneg == AUTONEG_DISABLE) { | |
25db0338 | 1576 | cap = speed_to_caps(speed); |
b8ff05a9 | 1577 | |
25db0338 DD |
1578 | if (!(lc->supported & cap) || (speed == SPEED_1000) || |
1579 | (speed == SPEED_10000)) | |
b8ff05a9 DM |
1580 | return -EINVAL; |
1581 | lc->requested_speed = cap; | |
1582 | lc->advertising = 0; | |
1583 | } else { | |
1584 | cap = to_fw_linkcaps(cmd->advertising); | |
1585 | if (!(lc->supported & cap)) | |
1586 | return -EINVAL; | |
1587 | lc->requested_speed = 0; | |
1588 | lc->advertising = cap | FW_PORT_CAP_ANEG; | |
1589 | } | |
1590 | lc->autoneg = cmd->autoneg; | |
1591 | ||
1592 | if (netif_running(dev)) | |
060e0c75 DM |
1593 | return t4_link_start(p->adapter, p->adapter->fn, p->tx_chan, |
1594 | lc); | |
b8ff05a9 DM |
1595 | return 0; |
1596 | } | |
1597 | ||
1598 | static void get_pauseparam(struct net_device *dev, | |
1599 | struct ethtool_pauseparam *epause) | |
1600 | { | |
1601 | struct port_info *p = netdev_priv(dev); | |
1602 | ||
1603 | epause->autoneg = (p->link_cfg.requested_fc & PAUSE_AUTONEG) != 0; | |
1604 | epause->rx_pause = (p->link_cfg.fc & PAUSE_RX) != 0; | |
1605 | epause->tx_pause = (p->link_cfg.fc & PAUSE_TX) != 0; | |
1606 | } | |
1607 | ||
1608 | static int set_pauseparam(struct net_device *dev, | |
1609 | struct ethtool_pauseparam *epause) | |
1610 | { | |
1611 | struct port_info *p = netdev_priv(dev); | |
1612 | struct link_config *lc = &p->link_cfg; | |
1613 | ||
1614 | if (epause->autoneg == AUTONEG_DISABLE) | |
1615 | lc->requested_fc = 0; | |
1616 | else if (lc->supported & FW_PORT_CAP_ANEG) | |
1617 | lc->requested_fc = PAUSE_AUTONEG; | |
1618 | else | |
1619 | return -EINVAL; | |
1620 | ||
1621 | if (epause->rx_pause) | |
1622 | lc->requested_fc |= PAUSE_RX; | |
1623 | if (epause->tx_pause) | |
1624 | lc->requested_fc |= PAUSE_TX; | |
1625 | if (netif_running(dev)) | |
060e0c75 DM |
1626 | return t4_link_start(p->adapter, p->adapter->fn, p->tx_chan, |
1627 | lc); | |
b8ff05a9 DM |
1628 | return 0; |
1629 | } | |
1630 | ||
b8ff05a9 DM |
1631 | static void get_sge_param(struct net_device *dev, struct ethtool_ringparam *e) |
1632 | { | |
1633 | const struct port_info *pi = netdev_priv(dev); | |
1634 | const struct sge *s = &pi->adapter->sge; | |
1635 | ||
1636 | e->rx_max_pending = MAX_RX_BUFFERS; | |
1637 | e->rx_mini_max_pending = MAX_RSPQ_ENTRIES; | |
1638 | e->rx_jumbo_max_pending = 0; | |
1639 | e->tx_max_pending = MAX_TXQ_ENTRIES; | |
1640 | ||
1641 | e->rx_pending = s->ethrxq[pi->first_qset].fl.size - 8; | |
1642 | e->rx_mini_pending = s->ethrxq[pi->first_qset].rspq.size; | |
1643 | e->rx_jumbo_pending = 0; | |
1644 | e->tx_pending = s->ethtxq[pi->first_qset].q.size; | |
1645 | } | |
1646 | ||
1647 | static int set_sge_param(struct net_device *dev, struct ethtool_ringparam *e) | |
1648 | { | |
1649 | int i; | |
1650 | const struct port_info *pi = netdev_priv(dev); | |
1651 | struct adapter *adapter = pi->adapter; | |
1652 | struct sge *s = &adapter->sge; | |
1653 | ||
1654 | if (e->rx_pending > MAX_RX_BUFFERS || e->rx_jumbo_pending || | |
1655 | e->tx_pending > MAX_TXQ_ENTRIES || | |
1656 | e->rx_mini_pending > MAX_RSPQ_ENTRIES || | |
1657 | e->rx_mini_pending < MIN_RSPQ_ENTRIES || | |
1658 | e->rx_pending < MIN_FL_ENTRIES || e->tx_pending < MIN_TXQ_ENTRIES) | |
1659 | return -EINVAL; | |
1660 | ||
1661 | if (adapter->flags & FULL_INIT_DONE) | |
1662 | return -EBUSY; | |
1663 | ||
1664 | for (i = 0; i < pi->nqsets; ++i) { | |
1665 | s->ethtxq[pi->first_qset + i].q.size = e->tx_pending; | |
1666 | s->ethrxq[pi->first_qset + i].fl.size = e->rx_pending + 8; | |
1667 | s->ethrxq[pi->first_qset + i].rspq.size = e->rx_mini_pending; | |
1668 | } | |
1669 | return 0; | |
1670 | } | |
1671 | ||
1672 | static int closest_timer(const struct sge *s, int time) | |
1673 | { | |
1674 | int i, delta, match = 0, min_delta = INT_MAX; | |
1675 | ||
1676 | for (i = 0; i < ARRAY_SIZE(s->timer_val); i++) { | |
1677 | delta = time - s->timer_val[i]; | |
1678 | if (delta < 0) | |
1679 | delta = -delta; | |
1680 | if (delta < min_delta) { | |
1681 | min_delta = delta; | |
1682 | match = i; | |
1683 | } | |
1684 | } | |
1685 | return match; | |
1686 | } | |
1687 | ||
1688 | static int closest_thres(const struct sge *s, int thres) | |
1689 | { | |
1690 | int i, delta, match = 0, min_delta = INT_MAX; | |
1691 | ||
1692 | for (i = 0; i < ARRAY_SIZE(s->counter_val); i++) { | |
1693 | delta = thres - s->counter_val[i]; | |
1694 | if (delta < 0) | |
1695 | delta = -delta; | |
1696 | if (delta < min_delta) { | |
1697 | min_delta = delta; | |
1698 | match = i; | |
1699 | } | |
1700 | } | |
1701 | return match; | |
1702 | } | |
1703 | ||
1704 | /* | |
1705 | * Return a queue's interrupt hold-off time in us. 0 means no timer. | |
1706 | */ | |
1707 | static unsigned int qtimer_val(const struct adapter *adap, | |
1708 | const struct sge_rspq *q) | |
1709 | { | |
1710 | unsigned int idx = q->intr_params >> 1; | |
1711 | ||
1712 | return idx < SGE_NTIMERS ? adap->sge.timer_val[idx] : 0; | |
1713 | } | |
1714 | ||
1715 | /** | |
1716 | * set_rxq_intr_params - set a queue's interrupt holdoff parameters | |
1717 | * @adap: the adapter | |
1718 | * @q: the Rx queue | |
1719 | * @us: the hold-off time in us, or 0 to disable timer | |
1720 | * @cnt: the hold-off packet count, or 0 to disable counter | |
1721 | * | |
1722 | * Sets an Rx queue's interrupt hold-off time and packet count. At least | |
1723 | * one of the two needs to be enabled for the queue to generate interrupts. | |
1724 | */ | |
1725 | static int set_rxq_intr_params(struct adapter *adap, struct sge_rspq *q, | |
1726 | unsigned int us, unsigned int cnt) | |
1727 | { | |
1728 | if ((us | cnt) == 0) | |
1729 | cnt = 1; | |
1730 | ||
1731 | if (cnt) { | |
1732 | int err; | |
1733 | u32 v, new_idx; | |
1734 | ||
1735 | new_idx = closest_thres(&adap->sge, cnt); | |
1736 | if (q->desc && q->pktcnt_idx != new_idx) { | |
1737 | /* the queue has already been created, update it */ | |
1738 | v = FW_PARAMS_MNEM(FW_PARAMS_MNEM_DMAQ) | | |
1739 | FW_PARAMS_PARAM_X(FW_PARAMS_PARAM_DMAQ_IQ_INTCNTTHRESH) | | |
1740 | FW_PARAMS_PARAM_YZ(q->cntxt_id); | |
060e0c75 DM |
1741 | err = t4_set_params(adap, adap->fn, adap->fn, 0, 1, &v, |
1742 | &new_idx); | |
b8ff05a9 DM |
1743 | if (err) |
1744 | return err; | |
1745 | } | |
1746 | q->pktcnt_idx = new_idx; | |
1747 | } | |
1748 | ||
1749 | us = us == 0 ? 6 : closest_timer(&adap->sge, us); | |
1750 | q->intr_params = QINTR_TIMER_IDX(us) | (cnt > 0 ? QINTR_CNT_EN : 0); | |
1751 | return 0; | |
1752 | } | |
1753 | ||
1754 | static int set_coalesce(struct net_device *dev, struct ethtool_coalesce *c) | |
1755 | { | |
1756 | const struct port_info *pi = netdev_priv(dev); | |
1757 | struct adapter *adap = pi->adapter; | |
1758 | ||
1759 | return set_rxq_intr_params(adap, &adap->sge.ethrxq[pi->first_qset].rspq, | |
1760 | c->rx_coalesce_usecs, c->rx_max_coalesced_frames); | |
1761 | } | |
1762 | ||
1763 | static int get_coalesce(struct net_device *dev, struct ethtool_coalesce *c) | |
1764 | { | |
1765 | const struct port_info *pi = netdev_priv(dev); | |
1766 | const struct adapter *adap = pi->adapter; | |
1767 | const struct sge_rspq *rq = &adap->sge.ethrxq[pi->first_qset].rspq; | |
1768 | ||
1769 | c->rx_coalesce_usecs = qtimer_val(adap, rq); | |
1770 | c->rx_max_coalesced_frames = (rq->intr_params & QINTR_CNT_EN) ? | |
1771 | adap->sge.counter_val[rq->pktcnt_idx] : 0; | |
1772 | return 0; | |
1773 | } | |
1774 | ||
1478b3ee DM |
1775 | /** |
1776 | * eeprom_ptov - translate a physical EEPROM address to virtual | |
1777 | * @phys_addr: the physical EEPROM address | |
1778 | * @fn: the PCI function number | |
1779 | * @sz: size of function-specific area | |
1780 | * | |
1781 | * Translate a physical EEPROM address to virtual. The first 1K is | |
1782 | * accessed through virtual addresses starting at 31K, the rest is | |
1783 | * accessed through virtual addresses starting at 0. | |
1784 | * | |
1785 | * The mapping is as follows: | |
1786 | * [0..1K) -> [31K..32K) | |
1787 | * [1K..1K+A) -> [31K-A..31K) | |
1788 | * [1K+A..ES) -> [0..ES-A-1K) | |
1789 | * | |
1790 | * where A = @fn * @sz, and ES = EEPROM size. | |
b8ff05a9 | 1791 | */ |
1478b3ee | 1792 | static int eeprom_ptov(unsigned int phys_addr, unsigned int fn, unsigned int sz) |
b8ff05a9 | 1793 | { |
1478b3ee | 1794 | fn *= sz; |
b8ff05a9 DM |
1795 | if (phys_addr < 1024) |
1796 | return phys_addr + (31 << 10); | |
1478b3ee DM |
1797 | if (phys_addr < 1024 + fn) |
1798 | return 31744 - fn + phys_addr - 1024; | |
b8ff05a9 | 1799 | if (phys_addr < EEPROMSIZE) |
1478b3ee | 1800 | return phys_addr - 1024 - fn; |
b8ff05a9 DM |
1801 | return -EINVAL; |
1802 | } | |
1803 | ||
1804 | /* | |
1805 | * The next two routines implement eeprom read/write from physical addresses. | |
b8ff05a9 DM |
1806 | */ |
1807 | static int eeprom_rd_phys(struct adapter *adap, unsigned int phys_addr, u32 *v) | |
1808 | { | |
1478b3ee | 1809 | int vaddr = eeprom_ptov(phys_addr, adap->fn, EEPROMPFSIZE); |
b8ff05a9 DM |
1810 | |
1811 | if (vaddr >= 0) | |
1812 | vaddr = pci_read_vpd(adap->pdev, vaddr, sizeof(u32), v); | |
1813 | return vaddr < 0 ? vaddr : 0; | |
1814 | } | |
1815 | ||
1816 | static int eeprom_wr_phys(struct adapter *adap, unsigned int phys_addr, u32 v) | |
1817 | { | |
1478b3ee | 1818 | int vaddr = eeprom_ptov(phys_addr, adap->fn, EEPROMPFSIZE); |
b8ff05a9 DM |
1819 | |
1820 | if (vaddr >= 0) | |
1821 | vaddr = pci_write_vpd(adap->pdev, vaddr, sizeof(u32), &v); | |
1822 | return vaddr < 0 ? vaddr : 0; | |
1823 | } | |
1824 | ||
1825 | #define EEPROM_MAGIC 0x38E2F10C | |
1826 | ||
1827 | static int get_eeprom(struct net_device *dev, struct ethtool_eeprom *e, | |
1828 | u8 *data) | |
1829 | { | |
1830 | int i, err = 0; | |
1831 | struct adapter *adapter = netdev2adap(dev); | |
1832 | ||
1833 | u8 *buf = kmalloc(EEPROMSIZE, GFP_KERNEL); | |
1834 | if (!buf) | |
1835 | return -ENOMEM; | |
1836 | ||
1837 | e->magic = EEPROM_MAGIC; | |
1838 | for (i = e->offset & ~3; !err && i < e->offset + e->len; i += 4) | |
1839 | err = eeprom_rd_phys(adapter, i, (u32 *)&buf[i]); | |
1840 | ||
1841 | if (!err) | |
1842 | memcpy(data, buf + e->offset, e->len); | |
1843 | kfree(buf); | |
1844 | return err; | |
1845 | } | |
1846 | ||
1847 | static int set_eeprom(struct net_device *dev, struct ethtool_eeprom *eeprom, | |
1848 | u8 *data) | |
1849 | { | |
1850 | u8 *buf; | |
1851 | int err = 0; | |
1852 | u32 aligned_offset, aligned_len, *p; | |
1853 | struct adapter *adapter = netdev2adap(dev); | |
1854 | ||
1855 | if (eeprom->magic != EEPROM_MAGIC) | |
1856 | return -EINVAL; | |
1857 | ||
1858 | aligned_offset = eeprom->offset & ~3; | |
1859 | aligned_len = (eeprom->len + (eeprom->offset & 3) + 3) & ~3; | |
1860 | ||
1478b3ee DM |
1861 | if (adapter->fn > 0) { |
1862 | u32 start = 1024 + adapter->fn * EEPROMPFSIZE; | |
1863 | ||
1864 | if (aligned_offset < start || | |
1865 | aligned_offset + aligned_len > start + EEPROMPFSIZE) | |
1866 | return -EPERM; | |
1867 | } | |
1868 | ||
b8ff05a9 DM |
1869 | if (aligned_offset != eeprom->offset || aligned_len != eeprom->len) { |
1870 | /* | |
1871 | * RMW possibly needed for first or last words. | |
1872 | */ | |
1873 | buf = kmalloc(aligned_len, GFP_KERNEL); | |
1874 | if (!buf) | |
1875 | return -ENOMEM; | |
1876 | err = eeprom_rd_phys(adapter, aligned_offset, (u32 *)buf); | |
1877 | if (!err && aligned_len > 4) | |
1878 | err = eeprom_rd_phys(adapter, | |
1879 | aligned_offset + aligned_len - 4, | |
1880 | (u32 *)&buf[aligned_len - 4]); | |
1881 | if (err) | |
1882 | goto out; | |
1883 | memcpy(buf + (eeprom->offset & 3), data, eeprom->len); | |
1884 | } else | |
1885 | buf = data; | |
1886 | ||
1887 | err = t4_seeprom_wp(adapter, false); | |
1888 | if (err) | |
1889 | goto out; | |
1890 | ||
1891 | for (p = (u32 *)buf; !err && aligned_len; aligned_len -= 4, p++) { | |
1892 | err = eeprom_wr_phys(adapter, aligned_offset, *p); | |
1893 | aligned_offset += 4; | |
1894 | } | |
1895 | ||
1896 | if (!err) | |
1897 | err = t4_seeprom_wp(adapter, true); | |
1898 | out: | |
1899 | if (buf != data) | |
1900 | kfree(buf); | |
1901 | return err; | |
1902 | } | |
1903 | ||
1904 | static int set_flash(struct net_device *netdev, struct ethtool_flash *ef) | |
1905 | { | |
1906 | int ret; | |
1907 | const struct firmware *fw; | |
1908 | struct adapter *adap = netdev2adap(netdev); | |
1909 | ||
1910 | ef->data[sizeof(ef->data) - 1] = '\0'; | |
1911 | ret = request_firmware(&fw, ef->data, adap->pdev_dev); | |
1912 | if (ret < 0) | |
1913 | return ret; | |
1914 | ||
1915 | ret = t4_load_fw(adap, fw->data, fw->size); | |
1916 | release_firmware(fw); | |
1917 | if (!ret) | |
1918 | dev_info(adap->pdev_dev, "loaded firmware %s\n", ef->data); | |
1919 | return ret; | |
1920 | } | |
1921 | ||
1922 | #define WOL_SUPPORTED (WAKE_BCAST | WAKE_MAGIC) | |
1923 | #define BCAST_CRC 0xa0ccc1a6 | |
1924 | ||
1925 | static void get_wol(struct net_device *dev, struct ethtool_wolinfo *wol) | |
1926 | { | |
1927 | wol->supported = WAKE_BCAST | WAKE_MAGIC; | |
1928 | wol->wolopts = netdev2adap(dev)->wol; | |
1929 | memset(&wol->sopass, 0, sizeof(wol->sopass)); | |
1930 | } | |
1931 | ||
1932 | static int set_wol(struct net_device *dev, struct ethtool_wolinfo *wol) | |
1933 | { | |
1934 | int err = 0; | |
1935 | struct port_info *pi = netdev_priv(dev); | |
1936 | ||
1937 | if (wol->wolopts & ~WOL_SUPPORTED) | |
1938 | return -EINVAL; | |
1939 | t4_wol_magic_enable(pi->adapter, pi->tx_chan, | |
1940 | (wol->wolopts & WAKE_MAGIC) ? dev->dev_addr : NULL); | |
1941 | if (wol->wolopts & WAKE_BCAST) { | |
1942 | err = t4_wol_pat_enable(pi->adapter, pi->tx_chan, 0xfe, ~0ULL, | |
1943 | ~0ULL, 0, false); | |
1944 | if (!err) | |
1945 | err = t4_wol_pat_enable(pi->adapter, pi->tx_chan, 1, | |
1946 | ~6ULL, ~0ULL, BCAST_CRC, true); | |
1947 | } else | |
1948 | t4_wol_pat_enable(pi->adapter, pi->tx_chan, 0, 0, 0, 0, false); | |
1949 | return err; | |
1950 | } | |
1951 | ||
c8f44aff | 1952 | static int cxgb_set_features(struct net_device *dev, netdev_features_t features) |
87b6cf51 | 1953 | { |
2ed28baa | 1954 | const struct port_info *pi = netdev_priv(dev); |
c8f44aff | 1955 | netdev_features_t changed = dev->features ^ features; |
19ecae2c | 1956 | int err; |
19ecae2c | 1957 | |
2ed28baa MM |
1958 | if (!(changed & NETIF_F_HW_VLAN_RX)) |
1959 | return 0; | |
19ecae2c | 1960 | |
2ed28baa MM |
1961 | err = t4_set_rxmode(pi->adapter, pi->adapter->fn, pi->viid, -1, |
1962 | -1, -1, -1, | |
1963 | !!(features & NETIF_F_HW_VLAN_RX), true); | |
1964 | if (unlikely(err)) | |
1965 | dev->features = features ^ NETIF_F_HW_VLAN_RX; | |
19ecae2c | 1966 | return err; |
87b6cf51 DM |
1967 | } |
1968 | ||
7850f63f | 1969 | static u32 get_rss_table_size(struct net_device *dev) |
671b0060 DM |
1970 | { |
1971 | const struct port_info *pi = netdev_priv(dev); | |
671b0060 | 1972 | |
7850f63f BH |
1973 | return pi->rss_size; |
1974 | } | |
1975 | ||
1976 | static int get_rss_table(struct net_device *dev, u32 *p) | |
1977 | { | |
1978 | const struct port_info *pi = netdev_priv(dev); | |
1979 | unsigned int n = pi->rss_size; | |
1980 | ||
671b0060 | 1981 | while (n--) |
7850f63f | 1982 | p[n] = pi->rss[n]; |
671b0060 DM |
1983 | return 0; |
1984 | } | |
1985 | ||
7850f63f | 1986 | static int set_rss_table(struct net_device *dev, const u32 *p) |
671b0060 DM |
1987 | { |
1988 | unsigned int i; | |
1989 | struct port_info *pi = netdev_priv(dev); | |
1990 | ||
7850f63f BH |
1991 | for (i = 0; i < pi->rss_size; i++) |
1992 | pi->rss[i] = p[i]; | |
671b0060 DM |
1993 | if (pi->adapter->flags & FULL_INIT_DONE) |
1994 | return write_rss(pi, pi->rss); | |
1995 | return 0; | |
1996 | } | |
1997 | ||
1998 | static int get_rxnfc(struct net_device *dev, struct ethtool_rxnfc *info, | |
815c7db5 | 1999 | u32 *rules) |
671b0060 | 2000 | { |
f796564a DM |
2001 | const struct port_info *pi = netdev_priv(dev); |
2002 | ||
671b0060 | 2003 | switch (info->cmd) { |
f796564a DM |
2004 | case ETHTOOL_GRXFH: { |
2005 | unsigned int v = pi->rss_mode; | |
2006 | ||
2007 | info->data = 0; | |
2008 | switch (info->flow_type) { | |
2009 | case TCP_V4_FLOW: | |
2010 | if (v & FW_RSS_VI_CONFIG_CMD_IP4FOURTUPEN) | |
2011 | info->data = RXH_IP_SRC | RXH_IP_DST | | |
2012 | RXH_L4_B_0_1 | RXH_L4_B_2_3; | |
2013 | else if (v & FW_RSS_VI_CONFIG_CMD_IP4TWOTUPEN) | |
2014 | info->data = RXH_IP_SRC | RXH_IP_DST; | |
2015 | break; | |
2016 | case UDP_V4_FLOW: | |
2017 | if ((v & FW_RSS_VI_CONFIG_CMD_IP4FOURTUPEN) && | |
2018 | (v & FW_RSS_VI_CONFIG_CMD_UDPEN)) | |
2019 | info->data = RXH_IP_SRC | RXH_IP_DST | | |
2020 | RXH_L4_B_0_1 | RXH_L4_B_2_3; | |
2021 | else if (v & FW_RSS_VI_CONFIG_CMD_IP4TWOTUPEN) | |
2022 | info->data = RXH_IP_SRC | RXH_IP_DST; | |
2023 | break; | |
2024 | case SCTP_V4_FLOW: | |
2025 | case AH_ESP_V4_FLOW: | |
2026 | case IPV4_FLOW: | |
2027 | if (v & FW_RSS_VI_CONFIG_CMD_IP4TWOTUPEN) | |
2028 | info->data = RXH_IP_SRC | RXH_IP_DST; | |
2029 | break; | |
2030 | case TCP_V6_FLOW: | |
2031 | if (v & FW_RSS_VI_CONFIG_CMD_IP6FOURTUPEN) | |
2032 | info->data = RXH_IP_SRC | RXH_IP_DST | | |
2033 | RXH_L4_B_0_1 | RXH_L4_B_2_3; | |
2034 | else if (v & FW_RSS_VI_CONFIG_CMD_IP6TWOTUPEN) | |
2035 | info->data = RXH_IP_SRC | RXH_IP_DST; | |
2036 | break; | |
2037 | case UDP_V6_FLOW: | |
2038 | if ((v & FW_RSS_VI_CONFIG_CMD_IP6FOURTUPEN) && | |
2039 | (v & FW_RSS_VI_CONFIG_CMD_UDPEN)) | |
2040 | info->data = RXH_IP_SRC | RXH_IP_DST | | |
2041 | RXH_L4_B_0_1 | RXH_L4_B_2_3; | |
2042 | else if (v & FW_RSS_VI_CONFIG_CMD_IP6TWOTUPEN) | |
2043 | info->data = RXH_IP_SRC | RXH_IP_DST; | |
2044 | break; | |
2045 | case SCTP_V6_FLOW: | |
2046 | case AH_ESP_V6_FLOW: | |
2047 | case IPV6_FLOW: | |
2048 | if (v & FW_RSS_VI_CONFIG_CMD_IP6TWOTUPEN) | |
2049 | info->data = RXH_IP_SRC | RXH_IP_DST; | |
2050 | break; | |
2051 | } | |
2052 | return 0; | |
2053 | } | |
671b0060 | 2054 | case ETHTOOL_GRXRINGS: |
f796564a | 2055 | info->data = pi->nqsets; |
671b0060 DM |
2056 | return 0; |
2057 | } | |
2058 | return -EOPNOTSUPP; | |
2059 | } | |
2060 | ||
9b07be4b | 2061 | static const struct ethtool_ops cxgb_ethtool_ops = { |
b8ff05a9 DM |
2062 | .get_settings = get_settings, |
2063 | .set_settings = set_settings, | |
2064 | .get_drvinfo = get_drvinfo, | |
2065 | .get_msglevel = get_msglevel, | |
2066 | .set_msglevel = set_msglevel, | |
2067 | .get_ringparam = get_sge_param, | |
2068 | .set_ringparam = set_sge_param, | |
2069 | .get_coalesce = get_coalesce, | |
2070 | .set_coalesce = set_coalesce, | |
2071 | .get_eeprom_len = get_eeprom_len, | |
2072 | .get_eeprom = get_eeprom, | |
2073 | .set_eeprom = set_eeprom, | |
2074 | .get_pauseparam = get_pauseparam, | |
2075 | .set_pauseparam = set_pauseparam, | |
b8ff05a9 DM |
2076 | .get_link = ethtool_op_get_link, |
2077 | .get_strings = get_strings, | |
c5e06360 | 2078 | .set_phys_id = identify_port, |
b8ff05a9 DM |
2079 | .nway_reset = restart_autoneg, |
2080 | .get_sset_count = get_sset_count, | |
2081 | .get_ethtool_stats = get_stats, | |
2082 | .get_regs_len = get_regs_len, | |
2083 | .get_regs = get_regs, | |
2084 | .get_wol = get_wol, | |
2085 | .set_wol = set_wol, | |
671b0060 | 2086 | .get_rxnfc = get_rxnfc, |
7850f63f | 2087 | .get_rxfh_indir_size = get_rss_table_size, |
671b0060 DM |
2088 | .get_rxfh_indir = get_rss_table, |
2089 | .set_rxfh_indir = set_rss_table, | |
b8ff05a9 DM |
2090 | .flash_device = set_flash, |
2091 | }; | |
2092 | ||
2093 | /* | |
2094 | * debugfs support | |
2095 | */ | |
b8ff05a9 DM |
2096 | static ssize_t mem_read(struct file *file, char __user *buf, size_t count, |
2097 | loff_t *ppos) | |
2098 | { | |
2099 | loff_t pos = *ppos; | |
2100 | loff_t avail = file->f_path.dentry->d_inode->i_size; | |
2101 | unsigned int mem = (uintptr_t)file->private_data & 3; | |
2102 | struct adapter *adap = file->private_data - mem; | |
2103 | ||
2104 | if (pos < 0) | |
2105 | return -EINVAL; | |
2106 | if (pos >= avail) | |
2107 | return 0; | |
2108 | if (count > avail - pos) | |
2109 | count = avail - pos; | |
2110 | ||
2111 | while (count) { | |
2112 | size_t len; | |
2113 | int ret, ofst; | |
2114 | __be32 data[16]; | |
2115 | ||
2116 | if (mem == MEM_MC) | |
2117 | ret = t4_mc_read(adap, pos, data, NULL); | |
2118 | else | |
2119 | ret = t4_edc_read(adap, mem, pos, data, NULL); | |
2120 | if (ret) | |
2121 | return ret; | |
2122 | ||
2123 | ofst = pos % sizeof(data); | |
2124 | len = min(count, sizeof(data) - ofst); | |
2125 | if (copy_to_user(buf, (u8 *)data + ofst, len)) | |
2126 | return -EFAULT; | |
2127 | ||
2128 | buf += len; | |
2129 | pos += len; | |
2130 | count -= len; | |
2131 | } | |
2132 | count = pos - *ppos; | |
2133 | *ppos = pos; | |
2134 | return count; | |
2135 | } | |
2136 | ||
2137 | static const struct file_operations mem_debugfs_fops = { | |
2138 | .owner = THIS_MODULE, | |
234e3405 | 2139 | .open = simple_open, |
b8ff05a9 | 2140 | .read = mem_read, |
6038f373 | 2141 | .llseek = default_llseek, |
b8ff05a9 DM |
2142 | }; |
2143 | ||
2144 | static void __devinit add_debugfs_mem(struct adapter *adap, const char *name, | |
2145 | unsigned int idx, unsigned int size_mb) | |
2146 | { | |
2147 | struct dentry *de; | |
2148 | ||
2149 | de = debugfs_create_file(name, S_IRUSR, adap->debugfs_root, | |
2150 | (void *)adap + idx, &mem_debugfs_fops); | |
2151 | if (de && de->d_inode) | |
2152 | de->d_inode->i_size = size_mb << 20; | |
2153 | } | |
2154 | ||
2155 | static int __devinit setup_debugfs(struct adapter *adap) | |
2156 | { | |
2157 | int i; | |
2158 | ||
2159 | if (IS_ERR_OR_NULL(adap->debugfs_root)) | |
2160 | return -1; | |
2161 | ||
2162 | i = t4_read_reg(adap, MA_TARGET_MEM_ENABLE); | |
2163 | if (i & EDRAM0_ENABLE) | |
2164 | add_debugfs_mem(adap, "edc0", MEM_EDC0, 5); | |
2165 | if (i & EDRAM1_ENABLE) | |
2166 | add_debugfs_mem(adap, "edc1", MEM_EDC1, 5); | |
2167 | if (i & EXT_MEM_ENABLE) | |
2168 | add_debugfs_mem(adap, "mc", MEM_MC, | |
2169 | EXT_MEM_SIZE_GET(t4_read_reg(adap, MA_EXT_MEMORY_BAR))); | |
2170 | if (adap->l2t) | |
2171 | debugfs_create_file("l2t", S_IRUSR, adap->debugfs_root, adap, | |
2172 | &t4_l2t_fops); | |
2173 | return 0; | |
2174 | } | |
2175 | ||
2176 | /* | |
2177 | * upper-layer driver support | |
2178 | */ | |
2179 | ||
2180 | /* | |
2181 | * Allocate an active-open TID and set it to the supplied value. | |
2182 | */ | |
2183 | int cxgb4_alloc_atid(struct tid_info *t, void *data) | |
2184 | { | |
2185 | int atid = -1; | |
2186 | ||
2187 | spin_lock_bh(&t->atid_lock); | |
2188 | if (t->afree) { | |
2189 | union aopen_entry *p = t->afree; | |
2190 | ||
2191 | atid = p - t->atid_tab; | |
2192 | t->afree = p->next; | |
2193 | p->data = data; | |
2194 | t->atids_in_use++; | |
2195 | } | |
2196 | spin_unlock_bh(&t->atid_lock); | |
2197 | return atid; | |
2198 | } | |
2199 | EXPORT_SYMBOL(cxgb4_alloc_atid); | |
2200 | ||
2201 | /* | |
2202 | * Release an active-open TID. | |
2203 | */ | |
2204 | void cxgb4_free_atid(struct tid_info *t, unsigned int atid) | |
2205 | { | |
2206 | union aopen_entry *p = &t->atid_tab[atid]; | |
2207 | ||
2208 | spin_lock_bh(&t->atid_lock); | |
2209 | p->next = t->afree; | |
2210 | t->afree = p; | |
2211 | t->atids_in_use--; | |
2212 | spin_unlock_bh(&t->atid_lock); | |
2213 | } | |
2214 | EXPORT_SYMBOL(cxgb4_free_atid); | |
2215 | ||
2216 | /* | |
2217 | * Allocate a server TID and set it to the supplied value. | |
2218 | */ | |
2219 | int cxgb4_alloc_stid(struct tid_info *t, int family, void *data) | |
2220 | { | |
2221 | int stid; | |
2222 | ||
2223 | spin_lock_bh(&t->stid_lock); | |
2224 | if (family == PF_INET) { | |
2225 | stid = find_first_zero_bit(t->stid_bmap, t->nstids); | |
2226 | if (stid < t->nstids) | |
2227 | __set_bit(stid, t->stid_bmap); | |
2228 | else | |
2229 | stid = -1; | |
2230 | } else { | |
2231 | stid = bitmap_find_free_region(t->stid_bmap, t->nstids, 2); | |
2232 | if (stid < 0) | |
2233 | stid = -1; | |
2234 | } | |
2235 | if (stid >= 0) { | |
2236 | t->stid_tab[stid].data = data; | |
2237 | stid += t->stid_base; | |
2238 | t->stids_in_use++; | |
2239 | } | |
2240 | spin_unlock_bh(&t->stid_lock); | |
2241 | return stid; | |
2242 | } | |
2243 | EXPORT_SYMBOL(cxgb4_alloc_stid); | |
2244 | ||
2245 | /* | |
2246 | * Release a server TID. | |
2247 | */ | |
2248 | void cxgb4_free_stid(struct tid_info *t, unsigned int stid, int family) | |
2249 | { | |
2250 | stid -= t->stid_base; | |
2251 | spin_lock_bh(&t->stid_lock); | |
2252 | if (family == PF_INET) | |
2253 | __clear_bit(stid, t->stid_bmap); | |
2254 | else | |
2255 | bitmap_release_region(t->stid_bmap, stid, 2); | |
2256 | t->stid_tab[stid].data = NULL; | |
2257 | t->stids_in_use--; | |
2258 | spin_unlock_bh(&t->stid_lock); | |
2259 | } | |
2260 | EXPORT_SYMBOL(cxgb4_free_stid); | |
2261 | ||
2262 | /* | |
2263 | * Populate a TID_RELEASE WR. Caller must properly size the skb. | |
2264 | */ | |
2265 | static void mk_tid_release(struct sk_buff *skb, unsigned int chan, | |
2266 | unsigned int tid) | |
2267 | { | |
2268 | struct cpl_tid_release *req; | |
2269 | ||
2270 | set_wr_txq(skb, CPL_PRIORITY_SETUP, chan); | |
2271 | req = (struct cpl_tid_release *)__skb_put(skb, sizeof(*req)); | |
2272 | INIT_TP_WR(req, tid); | |
2273 | OPCODE_TID(req) = htonl(MK_OPCODE_TID(CPL_TID_RELEASE, tid)); | |
2274 | } | |
2275 | ||
2276 | /* | |
2277 | * Queue a TID release request and if necessary schedule a work queue to | |
2278 | * process it. | |
2279 | */ | |
31b9c19b | 2280 | static void cxgb4_queue_tid_release(struct tid_info *t, unsigned int chan, |
2281 | unsigned int tid) | |
b8ff05a9 DM |
2282 | { |
2283 | void **p = &t->tid_tab[tid]; | |
2284 | struct adapter *adap = container_of(t, struct adapter, tids); | |
2285 | ||
2286 | spin_lock_bh(&adap->tid_release_lock); | |
2287 | *p = adap->tid_release_head; | |
2288 | /* Low 2 bits encode the Tx channel number */ | |
2289 | adap->tid_release_head = (void **)((uintptr_t)p | chan); | |
2290 | if (!adap->tid_release_task_busy) { | |
2291 | adap->tid_release_task_busy = true; | |
3069ee9b | 2292 | queue_work(workq, &adap->tid_release_task); |
b8ff05a9 DM |
2293 | } |
2294 | spin_unlock_bh(&adap->tid_release_lock); | |
2295 | } | |
b8ff05a9 DM |
2296 | |
2297 | /* | |
2298 | * Process the list of pending TID release requests. | |
2299 | */ | |
2300 | static void process_tid_release_list(struct work_struct *work) | |
2301 | { | |
2302 | struct sk_buff *skb; | |
2303 | struct adapter *adap; | |
2304 | ||
2305 | adap = container_of(work, struct adapter, tid_release_task); | |
2306 | ||
2307 | spin_lock_bh(&adap->tid_release_lock); | |
2308 | while (adap->tid_release_head) { | |
2309 | void **p = adap->tid_release_head; | |
2310 | unsigned int chan = (uintptr_t)p & 3; | |
2311 | p = (void *)p - chan; | |
2312 | ||
2313 | adap->tid_release_head = *p; | |
2314 | *p = NULL; | |
2315 | spin_unlock_bh(&adap->tid_release_lock); | |
2316 | ||
2317 | while (!(skb = alloc_skb(sizeof(struct cpl_tid_release), | |
2318 | GFP_KERNEL))) | |
2319 | schedule_timeout_uninterruptible(1); | |
2320 | ||
2321 | mk_tid_release(skb, chan, p - adap->tids.tid_tab); | |
2322 | t4_ofld_send(adap, skb); | |
2323 | spin_lock_bh(&adap->tid_release_lock); | |
2324 | } | |
2325 | adap->tid_release_task_busy = false; | |
2326 | spin_unlock_bh(&adap->tid_release_lock); | |
2327 | } | |
2328 | ||
2329 | /* | |
2330 | * Release a TID and inform HW. If we are unable to allocate the release | |
2331 | * message we defer to a work queue. | |
2332 | */ | |
2333 | void cxgb4_remove_tid(struct tid_info *t, unsigned int chan, unsigned int tid) | |
2334 | { | |
2335 | void *old; | |
2336 | struct sk_buff *skb; | |
2337 | struct adapter *adap = container_of(t, struct adapter, tids); | |
2338 | ||
2339 | old = t->tid_tab[tid]; | |
2340 | skb = alloc_skb(sizeof(struct cpl_tid_release), GFP_ATOMIC); | |
2341 | if (likely(skb)) { | |
2342 | t->tid_tab[tid] = NULL; | |
2343 | mk_tid_release(skb, chan, tid); | |
2344 | t4_ofld_send(adap, skb); | |
2345 | } else | |
2346 | cxgb4_queue_tid_release(t, chan, tid); | |
2347 | if (old) | |
2348 | atomic_dec(&t->tids_in_use); | |
2349 | } | |
2350 | EXPORT_SYMBOL(cxgb4_remove_tid); | |
2351 | ||
2352 | /* | |
2353 | * Allocate and initialize the TID tables. Returns 0 on success. | |
2354 | */ | |
2355 | static int tid_init(struct tid_info *t) | |
2356 | { | |
2357 | size_t size; | |
2358 | unsigned int natids = t->natids; | |
2359 | ||
2360 | size = t->ntids * sizeof(*t->tid_tab) + natids * sizeof(*t->atid_tab) + | |
2361 | t->nstids * sizeof(*t->stid_tab) + | |
2362 | BITS_TO_LONGS(t->nstids) * sizeof(long); | |
2363 | t->tid_tab = t4_alloc_mem(size); | |
2364 | if (!t->tid_tab) | |
2365 | return -ENOMEM; | |
2366 | ||
2367 | t->atid_tab = (union aopen_entry *)&t->tid_tab[t->ntids]; | |
2368 | t->stid_tab = (struct serv_entry *)&t->atid_tab[natids]; | |
2369 | t->stid_bmap = (unsigned long *)&t->stid_tab[t->nstids]; | |
2370 | spin_lock_init(&t->stid_lock); | |
2371 | spin_lock_init(&t->atid_lock); | |
2372 | ||
2373 | t->stids_in_use = 0; | |
2374 | t->afree = NULL; | |
2375 | t->atids_in_use = 0; | |
2376 | atomic_set(&t->tids_in_use, 0); | |
2377 | ||
2378 | /* Setup the free list for atid_tab and clear the stid bitmap. */ | |
2379 | if (natids) { | |
2380 | while (--natids) | |
2381 | t->atid_tab[natids - 1].next = &t->atid_tab[natids]; | |
2382 | t->afree = t->atid_tab; | |
2383 | } | |
2384 | bitmap_zero(t->stid_bmap, t->nstids); | |
2385 | return 0; | |
2386 | } | |
2387 | ||
2388 | /** | |
2389 | * cxgb4_create_server - create an IP server | |
2390 | * @dev: the device | |
2391 | * @stid: the server TID | |
2392 | * @sip: local IP address to bind server to | |
2393 | * @sport: the server's TCP port | |
2394 | * @queue: queue to direct messages from this server to | |
2395 | * | |
2396 | * Create an IP server for the given port and address. | |
2397 | * Returns <0 on error and one of the %NET_XMIT_* values on success. | |
2398 | */ | |
2399 | int cxgb4_create_server(const struct net_device *dev, unsigned int stid, | |
2400 | __be32 sip, __be16 sport, unsigned int queue) | |
2401 | { | |
2402 | unsigned int chan; | |
2403 | struct sk_buff *skb; | |
2404 | struct adapter *adap; | |
2405 | struct cpl_pass_open_req *req; | |
2406 | ||
2407 | skb = alloc_skb(sizeof(*req), GFP_KERNEL); | |
2408 | if (!skb) | |
2409 | return -ENOMEM; | |
2410 | ||
2411 | adap = netdev2adap(dev); | |
2412 | req = (struct cpl_pass_open_req *)__skb_put(skb, sizeof(*req)); | |
2413 | INIT_TP_WR(req, 0); | |
2414 | OPCODE_TID(req) = htonl(MK_OPCODE_TID(CPL_PASS_OPEN_REQ, stid)); | |
2415 | req->local_port = sport; | |
2416 | req->peer_port = htons(0); | |
2417 | req->local_ip = sip; | |
2418 | req->peer_ip = htonl(0); | |
e46dab4d | 2419 | chan = rxq_to_chan(&adap->sge, queue); |
b8ff05a9 DM |
2420 | req->opt0 = cpu_to_be64(TX_CHAN(chan)); |
2421 | req->opt1 = cpu_to_be64(CONN_POLICY_ASK | | |
2422 | SYN_RSS_ENABLE | SYN_RSS_QUEUE(queue)); | |
2423 | return t4_mgmt_tx(adap, skb); | |
2424 | } | |
2425 | EXPORT_SYMBOL(cxgb4_create_server); | |
2426 | ||
b8ff05a9 DM |
2427 | /** |
2428 | * cxgb4_best_mtu - find the entry in the MTU table closest to an MTU | |
2429 | * @mtus: the HW MTU table | |
2430 | * @mtu: the target MTU | |
2431 | * @idx: index of selected entry in the MTU table | |
2432 | * | |
2433 | * Returns the index and the value in the HW MTU table that is closest to | |
2434 | * but does not exceed @mtu, unless @mtu is smaller than any value in the | |
2435 | * table, in which case that smallest available value is selected. | |
2436 | */ | |
2437 | unsigned int cxgb4_best_mtu(const unsigned short *mtus, unsigned short mtu, | |
2438 | unsigned int *idx) | |
2439 | { | |
2440 | unsigned int i = 0; | |
2441 | ||
2442 | while (i < NMTUS - 1 && mtus[i + 1] <= mtu) | |
2443 | ++i; | |
2444 | if (idx) | |
2445 | *idx = i; | |
2446 | return mtus[i]; | |
2447 | } | |
2448 | EXPORT_SYMBOL(cxgb4_best_mtu); | |
2449 | ||
2450 | /** | |
2451 | * cxgb4_port_chan - get the HW channel of a port | |
2452 | * @dev: the net device for the port | |
2453 | * | |
2454 | * Return the HW Tx channel of the given port. | |
2455 | */ | |
2456 | unsigned int cxgb4_port_chan(const struct net_device *dev) | |
2457 | { | |
2458 | return netdev2pinfo(dev)->tx_chan; | |
2459 | } | |
2460 | EXPORT_SYMBOL(cxgb4_port_chan); | |
2461 | ||
881806bc VP |
2462 | unsigned int cxgb4_dbfifo_count(const struct net_device *dev, int lpfifo) |
2463 | { | |
2464 | struct adapter *adap = netdev2adap(dev); | |
2465 | u32 v; | |
2466 | ||
2467 | v = t4_read_reg(adap, A_SGE_DBFIFO_STATUS); | |
2468 | return lpfifo ? G_LP_COUNT(v) : G_HP_COUNT(v); | |
2469 | } | |
2470 | EXPORT_SYMBOL(cxgb4_dbfifo_count); | |
2471 | ||
b8ff05a9 DM |
2472 | /** |
2473 | * cxgb4_port_viid - get the VI id of a port | |
2474 | * @dev: the net device for the port | |
2475 | * | |
2476 | * Return the VI id of the given port. | |
2477 | */ | |
2478 | unsigned int cxgb4_port_viid(const struct net_device *dev) | |
2479 | { | |
2480 | return netdev2pinfo(dev)->viid; | |
2481 | } | |
2482 | EXPORT_SYMBOL(cxgb4_port_viid); | |
2483 | ||
2484 | /** | |
2485 | * cxgb4_port_idx - get the index of a port | |
2486 | * @dev: the net device for the port | |
2487 | * | |
2488 | * Return the index of the given port. | |
2489 | */ | |
2490 | unsigned int cxgb4_port_idx(const struct net_device *dev) | |
2491 | { | |
2492 | return netdev2pinfo(dev)->port_id; | |
2493 | } | |
2494 | EXPORT_SYMBOL(cxgb4_port_idx); | |
2495 | ||
b8ff05a9 DM |
2496 | void cxgb4_get_tcp_stats(struct pci_dev *pdev, struct tp_tcp_stats *v4, |
2497 | struct tp_tcp_stats *v6) | |
2498 | { | |
2499 | struct adapter *adap = pci_get_drvdata(pdev); | |
2500 | ||
2501 | spin_lock(&adap->stats_lock); | |
2502 | t4_tp_get_tcp_stats(adap, v4, v6); | |
2503 | spin_unlock(&adap->stats_lock); | |
2504 | } | |
2505 | EXPORT_SYMBOL(cxgb4_get_tcp_stats); | |
2506 | ||
2507 | void cxgb4_iscsi_init(struct net_device *dev, unsigned int tag_mask, | |
2508 | const unsigned int *pgsz_order) | |
2509 | { | |
2510 | struct adapter *adap = netdev2adap(dev); | |
2511 | ||
2512 | t4_write_reg(adap, ULP_RX_ISCSI_TAGMASK, tag_mask); | |
2513 | t4_write_reg(adap, ULP_RX_ISCSI_PSZ, HPZ0(pgsz_order[0]) | | |
2514 | HPZ1(pgsz_order[1]) | HPZ2(pgsz_order[2]) | | |
2515 | HPZ3(pgsz_order[3])); | |
2516 | } | |
2517 | EXPORT_SYMBOL(cxgb4_iscsi_init); | |
2518 | ||
3069ee9b VP |
2519 | int cxgb4_flush_eq_cache(struct net_device *dev) |
2520 | { | |
2521 | struct adapter *adap = netdev2adap(dev); | |
2522 | int ret; | |
2523 | ||
2524 | ret = t4_fwaddrspace_write(adap, adap->mbox, | |
2525 | 0xe1000000 + A_SGE_CTXT_CMD, 0x20000000); | |
2526 | return ret; | |
2527 | } | |
2528 | EXPORT_SYMBOL(cxgb4_flush_eq_cache); | |
2529 | ||
2530 | static int read_eq_indices(struct adapter *adap, u16 qid, u16 *pidx, u16 *cidx) | |
2531 | { | |
2532 | u32 addr = t4_read_reg(adap, A_SGE_DBQ_CTXT_BADDR) + 24 * qid + 8; | |
2533 | __be64 indices; | |
2534 | int ret; | |
2535 | ||
2536 | ret = t4_mem_win_read_len(adap, addr, (__be32 *)&indices, 8); | |
2537 | if (!ret) { | |
2538 | indices = be64_to_cpu(indices); | |
2539 | *cidx = (indices >> 25) & 0xffff; | |
2540 | *pidx = (indices >> 9) & 0xffff; | |
2541 | } | |
2542 | return ret; | |
2543 | } | |
2544 | ||
2545 | int cxgb4_sync_txq_pidx(struct net_device *dev, u16 qid, u16 pidx, | |
2546 | u16 size) | |
2547 | { | |
2548 | struct adapter *adap = netdev2adap(dev); | |
2549 | u16 hw_pidx, hw_cidx; | |
2550 | int ret; | |
2551 | ||
2552 | ret = read_eq_indices(adap, qid, &hw_pidx, &hw_cidx); | |
2553 | if (ret) | |
2554 | goto out; | |
2555 | ||
2556 | if (pidx != hw_pidx) { | |
2557 | u16 delta; | |
2558 | ||
2559 | if (pidx >= hw_pidx) | |
2560 | delta = pidx - hw_pidx; | |
2561 | else | |
2562 | delta = size - hw_pidx + pidx; | |
2563 | wmb(); | |
840f3000 VP |
2564 | t4_write_reg(adap, MYPF_REG(SGE_PF_KDOORBELL), |
2565 | QID(qid) | PIDX(delta)); | |
3069ee9b VP |
2566 | } |
2567 | out: | |
2568 | return ret; | |
2569 | } | |
2570 | EXPORT_SYMBOL(cxgb4_sync_txq_pidx); | |
2571 | ||
b8ff05a9 DM |
2572 | static struct pci_driver cxgb4_driver; |
2573 | ||
2574 | static void check_neigh_update(struct neighbour *neigh) | |
2575 | { | |
2576 | const struct device *parent; | |
2577 | const struct net_device *netdev = neigh->dev; | |
2578 | ||
2579 | if (netdev->priv_flags & IFF_802_1Q_VLAN) | |
2580 | netdev = vlan_dev_real_dev(netdev); | |
2581 | parent = netdev->dev.parent; | |
2582 | if (parent && parent->driver == &cxgb4_driver.driver) | |
2583 | t4_l2t_update(dev_get_drvdata(parent), neigh); | |
2584 | } | |
2585 | ||
2586 | static int netevent_cb(struct notifier_block *nb, unsigned long event, | |
2587 | void *data) | |
2588 | { | |
2589 | switch (event) { | |
2590 | case NETEVENT_NEIGH_UPDATE: | |
2591 | check_neigh_update(data); | |
2592 | break; | |
b8ff05a9 DM |
2593 | case NETEVENT_REDIRECT: |
2594 | default: | |
2595 | break; | |
2596 | } | |
2597 | return 0; | |
2598 | } | |
2599 | ||
2600 | static bool netevent_registered; | |
2601 | static struct notifier_block cxgb4_netevent_nb = { | |
2602 | .notifier_call = netevent_cb | |
2603 | }; | |
2604 | ||
3069ee9b VP |
2605 | static void drain_db_fifo(struct adapter *adap, int usecs) |
2606 | { | |
2607 | u32 v; | |
2608 | ||
2609 | do { | |
2610 | set_current_state(TASK_UNINTERRUPTIBLE); | |
2611 | schedule_timeout(usecs_to_jiffies(usecs)); | |
2612 | v = t4_read_reg(adap, A_SGE_DBFIFO_STATUS); | |
2613 | if (G_LP_COUNT(v) == 0 && G_HP_COUNT(v) == 0) | |
2614 | break; | |
2615 | } while (1); | |
2616 | } | |
2617 | ||
2618 | static void disable_txq_db(struct sge_txq *q) | |
2619 | { | |
2620 | spin_lock_irq(&q->db_lock); | |
2621 | q->db_disabled = 1; | |
2622 | spin_unlock_irq(&q->db_lock); | |
2623 | } | |
2624 | ||
2625 | static void enable_txq_db(struct sge_txq *q) | |
2626 | { | |
2627 | spin_lock_irq(&q->db_lock); | |
2628 | q->db_disabled = 0; | |
2629 | spin_unlock_irq(&q->db_lock); | |
2630 | } | |
2631 | ||
2632 | static void disable_dbs(struct adapter *adap) | |
2633 | { | |
2634 | int i; | |
2635 | ||
2636 | for_each_ethrxq(&adap->sge, i) | |
2637 | disable_txq_db(&adap->sge.ethtxq[i].q); | |
2638 | for_each_ofldrxq(&adap->sge, i) | |
2639 | disable_txq_db(&adap->sge.ofldtxq[i].q); | |
2640 | for_each_port(adap, i) | |
2641 | disable_txq_db(&adap->sge.ctrlq[i].q); | |
2642 | } | |
2643 | ||
2644 | static void enable_dbs(struct adapter *adap) | |
2645 | { | |
2646 | int i; | |
2647 | ||
2648 | for_each_ethrxq(&adap->sge, i) | |
2649 | enable_txq_db(&adap->sge.ethtxq[i].q); | |
2650 | for_each_ofldrxq(&adap->sge, i) | |
2651 | enable_txq_db(&adap->sge.ofldtxq[i].q); | |
2652 | for_each_port(adap, i) | |
2653 | enable_txq_db(&adap->sge.ctrlq[i].q); | |
2654 | } | |
2655 | ||
2656 | static void sync_txq_pidx(struct adapter *adap, struct sge_txq *q) | |
2657 | { | |
2658 | u16 hw_pidx, hw_cidx; | |
2659 | int ret; | |
2660 | ||
2661 | spin_lock_bh(&q->db_lock); | |
2662 | ret = read_eq_indices(adap, (u16)q->cntxt_id, &hw_pidx, &hw_cidx); | |
2663 | if (ret) | |
2664 | goto out; | |
2665 | if (q->db_pidx != hw_pidx) { | |
2666 | u16 delta; | |
2667 | ||
2668 | if (q->db_pidx >= hw_pidx) | |
2669 | delta = q->db_pidx - hw_pidx; | |
2670 | else | |
2671 | delta = q->size - hw_pidx + q->db_pidx; | |
2672 | wmb(); | |
840f3000 VP |
2673 | t4_write_reg(adap, MYPF_REG(SGE_PF_KDOORBELL), |
2674 | QID(q->cntxt_id) | PIDX(delta)); | |
3069ee9b VP |
2675 | } |
2676 | out: | |
2677 | q->db_disabled = 0; | |
2678 | spin_unlock_bh(&q->db_lock); | |
2679 | if (ret) | |
2680 | CH_WARN(adap, "DB drop recovery failed.\n"); | |
2681 | } | |
2682 | static void recover_all_queues(struct adapter *adap) | |
2683 | { | |
2684 | int i; | |
2685 | ||
2686 | for_each_ethrxq(&adap->sge, i) | |
2687 | sync_txq_pidx(adap, &adap->sge.ethtxq[i].q); | |
2688 | for_each_ofldrxq(&adap->sge, i) | |
2689 | sync_txq_pidx(adap, &adap->sge.ofldtxq[i].q); | |
2690 | for_each_port(adap, i) | |
2691 | sync_txq_pidx(adap, &adap->sge.ctrlq[i].q); | |
2692 | } | |
2693 | ||
881806bc VP |
2694 | static void notify_rdma_uld(struct adapter *adap, enum cxgb4_control cmd) |
2695 | { | |
2696 | mutex_lock(&uld_mutex); | |
2697 | if (adap->uld_handle[CXGB4_ULD_RDMA]) | |
2698 | ulds[CXGB4_ULD_RDMA].control(adap->uld_handle[CXGB4_ULD_RDMA], | |
2699 | cmd); | |
2700 | mutex_unlock(&uld_mutex); | |
2701 | } | |
2702 | ||
2703 | static void process_db_full(struct work_struct *work) | |
2704 | { | |
2705 | struct adapter *adap; | |
881806bc VP |
2706 | |
2707 | adap = container_of(work, struct adapter, db_full_task); | |
2708 | ||
881806bc | 2709 | notify_rdma_uld(adap, CXGB4_CONTROL_DB_FULL); |
3069ee9b | 2710 | drain_db_fifo(adap, dbfifo_drain_delay); |
840f3000 VP |
2711 | t4_set_reg_field(adap, SGE_INT_ENABLE3, |
2712 | DBFIFO_HP_INT | DBFIFO_LP_INT, | |
2713 | DBFIFO_HP_INT | DBFIFO_LP_INT); | |
881806bc | 2714 | notify_rdma_uld(adap, CXGB4_CONTROL_DB_EMPTY); |
881806bc VP |
2715 | } |
2716 | ||
2717 | static void process_db_drop(struct work_struct *work) | |
2718 | { | |
2719 | struct adapter *adap; | |
881806bc | 2720 | |
3069ee9b | 2721 | adap = container_of(work, struct adapter, db_drop_task); |
881806bc | 2722 | |
3069ee9b VP |
2723 | t4_set_reg_field(adap, A_SGE_DOORBELL_CONTROL, F_DROPPED_DB, 0); |
2724 | disable_dbs(adap); | |
881806bc | 2725 | notify_rdma_uld(adap, CXGB4_CONTROL_DB_DROP); |
3069ee9b VP |
2726 | drain_db_fifo(adap, 1); |
2727 | recover_all_queues(adap); | |
2728 | enable_dbs(adap); | |
881806bc VP |
2729 | } |
2730 | ||
2731 | void t4_db_full(struct adapter *adap) | |
2732 | { | |
840f3000 VP |
2733 | t4_set_reg_field(adap, SGE_INT_ENABLE3, |
2734 | DBFIFO_HP_INT | DBFIFO_LP_INT, 0); | |
3069ee9b | 2735 | queue_work(workq, &adap->db_full_task); |
881806bc VP |
2736 | } |
2737 | ||
2738 | void t4_db_dropped(struct adapter *adap) | |
2739 | { | |
3069ee9b | 2740 | queue_work(workq, &adap->db_drop_task); |
881806bc VP |
2741 | } |
2742 | ||
b8ff05a9 DM |
2743 | static void uld_attach(struct adapter *adap, unsigned int uld) |
2744 | { | |
2745 | void *handle; | |
2746 | struct cxgb4_lld_info lli; | |
2747 | ||
2748 | lli.pdev = adap->pdev; | |
2749 | lli.l2t = adap->l2t; | |
2750 | lli.tids = &adap->tids; | |
2751 | lli.ports = adap->port; | |
2752 | lli.vr = &adap->vres; | |
2753 | lli.mtus = adap->params.mtus; | |
2754 | if (uld == CXGB4_ULD_RDMA) { | |
2755 | lli.rxq_ids = adap->sge.rdma_rxq; | |
2756 | lli.nrxq = adap->sge.rdmaqs; | |
2757 | } else if (uld == CXGB4_ULD_ISCSI) { | |
2758 | lli.rxq_ids = adap->sge.ofld_rxq; | |
2759 | lli.nrxq = adap->sge.ofldqsets; | |
2760 | } | |
2761 | lli.ntxq = adap->sge.ofldqsets; | |
2762 | lli.nchan = adap->params.nports; | |
2763 | lli.nports = adap->params.nports; | |
2764 | lli.wr_cred = adap->params.ofldq_wr_cred; | |
2765 | lli.adapter_type = adap->params.rev; | |
2766 | lli.iscsi_iolen = MAXRXDATA_GET(t4_read_reg(adap, TP_PARA_REG2)); | |
2767 | lli.udb_density = 1 << QUEUESPERPAGEPF0_GET( | |
060e0c75 DM |
2768 | t4_read_reg(adap, SGE_EGRESS_QUEUES_PER_PAGE_PF) >> |
2769 | (adap->fn * 4)); | |
b8ff05a9 | 2770 | lli.ucq_density = 1 << QUEUESPERPAGEPF0_GET( |
060e0c75 DM |
2771 | t4_read_reg(adap, SGE_INGRESS_QUEUES_PER_PAGE_PF) >> |
2772 | (adap->fn * 4)); | |
b8ff05a9 DM |
2773 | lli.gts_reg = adap->regs + MYPF_REG(SGE_PF_GTS); |
2774 | lli.db_reg = adap->regs + MYPF_REG(SGE_PF_KDOORBELL); | |
2775 | lli.fw_vers = adap->params.fw_vers; | |
3069ee9b | 2776 | lli.dbfifo_int_thresh = dbfifo_int_thresh; |
b8ff05a9 DM |
2777 | |
2778 | handle = ulds[uld].add(&lli); | |
2779 | if (IS_ERR(handle)) { | |
2780 | dev_warn(adap->pdev_dev, | |
2781 | "could not attach to the %s driver, error %ld\n", | |
2782 | uld_str[uld], PTR_ERR(handle)); | |
2783 | return; | |
2784 | } | |
2785 | ||
2786 | adap->uld_handle[uld] = handle; | |
2787 | ||
2788 | if (!netevent_registered) { | |
2789 | register_netevent_notifier(&cxgb4_netevent_nb); | |
2790 | netevent_registered = true; | |
2791 | } | |
e29f5dbc DM |
2792 | |
2793 | if (adap->flags & FULL_INIT_DONE) | |
2794 | ulds[uld].state_change(handle, CXGB4_STATE_UP); | |
b8ff05a9 DM |
2795 | } |
2796 | ||
2797 | static void attach_ulds(struct adapter *adap) | |
2798 | { | |
2799 | unsigned int i; | |
2800 | ||
2801 | mutex_lock(&uld_mutex); | |
2802 | list_add_tail(&adap->list_node, &adapter_list); | |
2803 | for (i = 0; i < CXGB4_ULD_MAX; i++) | |
2804 | if (ulds[i].add) | |
2805 | uld_attach(adap, i); | |
2806 | mutex_unlock(&uld_mutex); | |
2807 | } | |
2808 | ||
2809 | static void detach_ulds(struct adapter *adap) | |
2810 | { | |
2811 | unsigned int i; | |
2812 | ||
2813 | mutex_lock(&uld_mutex); | |
2814 | list_del(&adap->list_node); | |
2815 | for (i = 0; i < CXGB4_ULD_MAX; i++) | |
2816 | if (adap->uld_handle[i]) { | |
2817 | ulds[i].state_change(adap->uld_handle[i], | |
2818 | CXGB4_STATE_DETACH); | |
2819 | adap->uld_handle[i] = NULL; | |
2820 | } | |
2821 | if (netevent_registered && list_empty(&adapter_list)) { | |
2822 | unregister_netevent_notifier(&cxgb4_netevent_nb); | |
2823 | netevent_registered = false; | |
2824 | } | |
2825 | mutex_unlock(&uld_mutex); | |
2826 | } | |
2827 | ||
2828 | static void notify_ulds(struct adapter *adap, enum cxgb4_state new_state) | |
2829 | { | |
2830 | unsigned int i; | |
2831 | ||
2832 | mutex_lock(&uld_mutex); | |
2833 | for (i = 0; i < CXGB4_ULD_MAX; i++) | |
2834 | if (adap->uld_handle[i]) | |
2835 | ulds[i].state_change(adap->uld_handle[i], new_state); | |
2836 | mutex_unlock(&uld_mutex); | |
2837 | } | |
2838 | ||
2839 | /** | |
2840 | * cxgb4_register_uld - register an upper-layer driver | |
2841 | * @type: the ULD type | |
2842 | * @p: the ULD methods | |
2843 | * | |
2844 | * Registers an upper-layer driver with this driver and notifies the ULD | |
2845 | * about any presently available devices that support its type. Returns | |
2846 | * %-EBUSY if a ULD of the same type is already registered. | |
2847 | */ | |
2848 | int cxgb4_register_uld(enum cxgb4_uld type, const struct cxgb4_uld_info *p) | |
2849 | { | |
2850 | int ret = 0; | |
2851 | struct adapter *adap; | |
2852 | ||
2853 | if (type >= CXGB4_ULD_MAX) | |
2854 | return -EINVAL; | |
2855 | mutex_lock(&uld_mutex); | |
2856 | if (ulds[type].add) { | |
2857 | ret = -EBUSY; | |
2858 | goto out; | |
2859 | } | |
2860 | ulds[type] = *p; | |
2861 | list_for_each_entry(adap, &adapter_list, list_node) | |
2862 | uld_attach(adap, type); | |
2863 | out: mutex_unlock(&uld_mutex); | |
2864 | return ret; | |
2865 | } | |
2866 | EXPORT_SYMBOL(cxgb4_register_uld); | |
2867 | ||
2868 | /** | |
2869 | * cxgb4_unregister_uld - unregister an upper-layer driver | |
2870 | * @type: the ULD type | |
2871 | * | |
2872 | * Unregisters an existing upper-layer driver. | |
2873 | */ | |
2874 | int cxgb4_unregister_uld(enum cxgb4_uld type) | |
2875 | { | |
2876 | struct adapter *adap; | |
2877 | ||
2878 | if (type >= CXGB4_ULD_MAX) | |
2879 | return -EINVAL; | |
2880 | mutex_lock(&uld_mutex); | |
2881 | list_for_each_entry(adap, &adapter_list, list_node) | |
2882 | adap->uld_handle[type] = NULL; | |
2883 | ulds[type].add = NULL; | |
2884 | mutex_unlock(&uld_mutex); | |
2885 | return 0; | |
2886 | } | |
2887 | EXPORT_SYMBOL(cxgb4_unregister_uld); | |
2888 | ||
2889 | /** | |
2890 | * cxgb_up - enable the adapter | |
2891 | * @adap: adapter being enabled | |
2892 | * | |
2893 | * Called when the first port is enabled, this function performs the | |
2894 | * actions necessary to make an adapter operational, such as completing | |
2895 | * the initialization of HW modules, and enabling interrupts. | |
2896 | * | |
2897 | * Must be called with the rtnl lock held. | |
2898 | */ | |
2899 | static int cxgb_up(struct adapter *adap) | |
2900 | { | |
aaefae9b | 2901 | int err; |
b8ff05a9 | 2902 | |
aaefae9b DM |
2903 | err = setup_sge_queues(adap); |
2904 | if (err) | |
2905 | goto out; | |
2906 | err = setup_rss(adap); | |
2907 | if (err) | |
2908 | goto freeq; | |
b8ff05a9 DM |
2909 | |
2910 | if (adap->flags & USING_MSIX) { | |
aaefae9b | 2911 | name_msix_vecs(adap); |
b8ff05a9 DM |
2912 | err = request_irq(adap->msix_info[0].vec, t4_nondata_intr, 0, |
2913 | adap->msix_info[0].desc, adap); | |
2914 | if (err) | |
2915 | goto irq_err; | |
2916 | ||
2917 | err = request_msix_queue_irqs(adap); | |
2918 | if (err) { | |
2919 | free_irq(adap->msix_info[0].vec, adap); | |
2920 | goto irq_err; | |
2921 | } | |
2922 | } else { | |
2923 | err = request_irq(adap->pdev->irq, t4_intr_handler(adap), | |
2924 | (adap->flags & USING_MSI) ? 0 : IRQF_SHARED, | |
b1a3c2b6 | 2925 | adap->port[0]->name, adap); |
b8ff05a9 DM |
2926 | if (err) |
2927 | goto irq_err; | |
2928 | } | |
2929 | enable_rx(adap); | |
2930 | t4_sge_start(adap); | |
2931 | t4_intr_enable(adap); | |
aaefae9b | 2932 | adap->flags |= FULL_INIT_DONE; |
b8ff05a9 DM |
2933 | notify_ulds(adap, CXGB4_STATE_UP); |
2934 | out: | |
2935 | return err; | |
2936 | irq_err: | |
2937 | dev_err(adap->pdev_dev, "request_irq failed, err %d\n", err); | |
aaefae9b DM |
2938 | freeq: |
2939 | t4_free_sge_resources(adap); | |
b8ff05a9 DM |
2940 | goto out; |
2941 | } | |
2942 | ||
2943 | static void cxgb_down(struct adapter *adapter) | |
2944 | { | |
2945 | t4_intr_disable(adapter); | |
2946 | cancel_work_sync(&adapter->tid_release_task); | |
881806bc VP |
2947 | cancel_work_sync(&adapter->db_full_task); |
2948 | cancel_work_sync(&adapter->db_drop_task); | |
b8ff05a9 | 2949 | adapter->tid_release_task_busy = false; |
204dc3c0 | 2950 | adapter->tid_release_head = NULL; |
b8ff05a9 DM |
2951 | |
2952 | if (adapter->flags & USING_MSIX) { | |
2953 | free_msix_queue_irqs(adapter); | |
2954 | free_irq(adapter->msix_info[0].vec, adapter); | |
2955 | } else | |
2956 | free_irq(adapter->pdev->irq, adapter); | |
2957 | quiesce_rx(adapter); | |
aaefae9b DM |
2958 | t4_sge_stop(adapter); |
2959 | t4_free_sge_resources(adapter); | |
2960 | adapter->flags &= ~FULL_INIT_DONE; | |
b8ff05a9 DM |
2961 | } |
2962 | ||
2963 | /* | |
2964 | * net_device operations | |
2965 | */ | |
2966 | static int cxgb_open(struct net_device *dev) | |
2967 | { | |
2968 | int err; | |
2969 | struct port_info *pi = netdev_priv(dev); | |
2970 | struct adapter *adapter = pi->adapter; | |
2971 | ||
6a3c869a DM |
2972 | netif_carrier_off(dev); |
2973 | ||
aaefae9b DM |
2974 | if (!(adapter->flags & FULL_INIT_DONE)) { |
2975 | err = cxgb_up(adapter); | |
2976 | if (err < 0) | |
2977 | return err; | |
2978 | } | |
b8ff05a9 | 2979 | |
f68707b8 DM |
2980 | err = link_start(dev); |
2981 | if (!err) | |
2982 | netif_tx_start_all_queues(dev); | |
2983 | return err; | |
b8ff05a9 DM |
2984 | } |
2985 | ||
2986 | static int cxgb_close(struct net_device *dev) | |
2987 | { | |
b8ff05a9 DM |
2988 | struct port_info *pi = netdev_priv(dev); |
2989 | struct adapter *adapter = pi->adapter; | |
2990 | ||
2991 | netif_tx_stop_all_queues(dev); | |
2992 | netif_carrier_off(dev); | |
060e0c75 | 2993 | return t4_enable_vi(adapter, adapter->fn, pi->viid, false, false); |
b8ff05a9 DM |
2994 | } |
2995 | ||
f5152c90 DM |
2996 | static struct rtnl_link_stats64 *cxgb_get_stats(struct net_device *dev, |
2997 | struct rtnl_link_stats64 *ns) | |
b8ff05a9 DM |
2998 | { |
2999 | struct port_stats stats; | |
3000 | struct port_info *p = netdev_priv(dev); | |
3001 | struct adapter *adapter = p->adapter; | |
b8ff05a9 DM |
3002 | |
3003 | spin_lock(&adapter->stats_lock); | |
3004 | t4_get_port_stats(adapter, p->tx_chan, &stats); | |
3005 | spin_unlock(&adapter->stats_lock); | |
3006 | ||
3007 | ns->tx_bytes = stats.tx_octets; | |
3008 | ns->tx_packets = stats.tx_frames; | |
3009 | ns->rx_bytes = stats.rx_octets; | |
3010 | ns->rx_packets = stats.rx_frames; | |
3011 | ns->multicast = stats.rx_mcast_frames; | |
3012 | ||
3013 | /* detailed rx_errors */ | |
3014 | ns->rx_length_errors = stats.rx_jabber + stats.rx_too_long + | |
3015 | stats.rx_runt; | |
3016 | ns->rx_over_errors = 0; | |
3017 | ns->rx_crc_errors = stats.rx_fcs_err; | |
3018 | ns->rx_frame_errors = stats.rx_symbol_err; | |
3019 | ns->rx_fifo_errors = stats.rx_ovflow0 + stats.rx_ovflow1 + | |
3020 | stats.rx_ovflow2 + stats.rx_ovflow3 + | |
3021 | stats.rx_trunc0 + stats.rx_trunc1 + | |
3022 | stats.rx_trunc2 + stats.rx_trunc3; | |
3023 | ns->rx_missed_errors = 0; | |
3024 | ||
3025 | /* detailed tx_errors */ | |
3026 | ns->tx_aborted_errors = 0; | |
3027 | ns->tx_carrier_errors = 0; | |
3028 | ns->tx_fifo_errors = 0; | |
3029 | ns->tx_heartbeat_errors = 0; | |
3030 | ns->tx_window_errors = 0; | |
3031 | ||
3032 | ns->tx_errors = stats.tx_error_frames; | |
3033 | ns->rx_errors = stats.rx_symbol_err + stats.rx_fcs_err + | |
3034 | ns->rx_length_errors + stats.rx_len_err + ns->rx_fifo_errors; | |
3035 | return ns; | |
3036 | } | |
3037 | ||
3038 | static int cxgb_ioctl(struct net_device *dev, struct ifreq *req, int cmd) | |
3039 | { | |
060e0c75 | 3040 | unsigned int mbox; |
b8ff05a9 DM |
3041 | int ret = 0, prtad, devad; |
3042 | struct port_info *pi = netdev_priv(dev); | |
3043 | struct mii_ioctl_data *data = (struct mii_ioctl_data *)&req->ifr_data; | |
3044 | ||
3045 | switch (cmd) { | |
3046 | case SIOCGMIIPHY: | |
3047 | if (pi->mdio_addr < 0) | |
3048 | return -EOPNOTSUPP; | |
3049 | data->phy_id = pi->mdio_addr; | |
3050 | break; | |
3051 | case SIOCGMIIREG: | |
3052 | case SIOCSMIIREG: | |
3053 | if (mdio_phy_id_is_c45(data->phy_id)) { | |
3054 | prtad = mdio_phy_id_prtad(data->phy_id); | |
3055 | devad = mdio_phy_id_devad(data->phy_id); | |
3056 | } else if (data->phy_id < 32) { | |
3057 | prtad = data->phy_id; | |
3058 | devad = 0; | |
3059 | data->reg_num &= 0x1f; | |
3060 | } else | |
3061 | return -EINVAL; | |
3062 | ||
060e0c75 | 3063 | mbox = pi->adapter->fn; |
b8ff05a9 | 3064 | if (cmd == SIOCGMIIREG) |
060e0c75 | 3065 | ret = t4_mdio_rd(pi->adapter, mbox, prtad, devad, |
b8ff05a9 DM |
3066 | data->reg_num, &data->val_out); |
3067 | else | |
060e0c75 | 3068 | ret = t4_mdio_wr(pi->adapter, mbox, prtad, devad, |
b8ff05a9 DM |
3069 | data->reg_num, data->val_in); |
3070 | break; | |
3071 | default: | |
3072 | return -EOPNOTSUPP; | |
3073 | } | |
3074 | return ret; | |
3075 | } | |
3076 | ||
3077 | static void cxgb_set_rxmode(struct net_device *dev) | |
3078 | { | |
3079 | /* unfortunately we can't return errors to the stack */ | |
3080 | set_rxmode(dev, -1, false); | |
3081 | } | |
3082 | ||
3083 | static int cxgb_change_mtu(struct net_device *dev, int new_mtu) | |
3084 | { | |
3085 | int ret; | |
3086 | struct port_info *pi = netdev_priv(dev); | |
3087 | ||
3088 | if (new_mtu < 81 || new_mtu > MAX_MTU) /* accommodate SACK */ | |
3089 | return -EINVAL; | |
060e0c75 DM |
3090 | ret = t4_set_rxmode(pi->adapter, pi->adapter->fn, pi->viid, new_mtu, -1, |
3091 | -1, -1, -1, true); | |
b8ff05a9 DM |
3092 | if (!ret) |
3093 | dev->mtu = new_mtu; | |
3094 | return ret; | |
3095 | } | |
3096 | ||
3097 | static int cxgb_set_mac_addr(struct net_device *dev, void *p) | |
3098 | { | |
3099 | int ret; | |
3100 | struct sockaddr *addr = p; | |
3101 | struct port_info *pi = netdev_priv(dev); | |
3102 | ||
3103 | if (!is_valid_ether_addr(addr->sa_data)) | |
504f9b5a | 3104 | return -EADDRNOTAVAIL; |
b8ff05a9 | 3105 | |
060e0c75 DM |
3106 | ret = t4_change_mac(pi->adapter, pi->adapter->fn, pi->viid, |
3107 | pi->xact_addr_filt, addr->sa_data, true, true); | |
b8ff05a9 DM |
3108 | if (ret < 0) |
3109 | return ret; | |
3110 | ||
3111 | memcpy(dev->dev_addr, addr->sa_data, dev->addr_len); | |
3112 | pi->xact_addr_filt = ret; | |
3113 | return 0; | |
3114 | } | |
3115 | ||
b8ff05a9 DM |
3116 | #ifdef CONFIG_NET_POLL_CONTROLLER |
3117 | static void cxgb_netpoll(struct net_device *dev) | |
3118 | { | |
3119 | struct port_info *pi = netdev_priv(dev); | |
3120 | struct adapter *adap = pi->adapter; | |
3121 | ||
3122 | if (adap->flags & USING_MSIX) { | |
3123 | int i; | |
3124 | struct sge_eth_rxq *rx = &adap->sge.ethrxq[pi->first_qset]; | |
3125 | ||
3126 | for (i = pi->nqsets; i; i--, rx++) | |
3127 | t4_sge_intr_msix(0, &rx->rspq); | |
3128 | } else | |
3129 | t4_intr_handler(adap)(0, adap); | |
3130 | } | |
3131 | #endif | |
3132 | ||
3133 | static const struct net_device_ops cxgb4_netdev_ops = { | |
3134 | .ndo_open = cxgb_open, | |
3135 | .ndo_stop = cxgb_close, | |
3136 | .ndo_start_xmit = t4_eth_xmit, | |
9be793bf | 3137 | .ndo_get_stats64 = cxgb_get_stats, |
b8ff05a9 DM |
3138 | .ndo_set_rx_mode = cxgb_set_rxmode, |
3139 | .ndo_set_mac_address = cxgb_set_mac_addr, | |
2ed28baa | 3140 | .ndo_set_features = cxgb_set_features, |
b8ff05a9 DM |
3141 | .ndo_validate_addr = eth_validate_addr, |
3142 | .ndo_do_ioctl = cxgb_ioctl, | |
3143 | .ndo_change_mtu = cxgb_change_mtu, | |
b8ff05a9 DM |
3144 | #ifdef CONFIG_NET_POLL_CONTROLLER |
3145 | .ndo_poll_controller = cxgb_netpoll, | |
3146 | #endif | |
3147 | }; | |
3148 | ||
3149 | void t4_fatal_err(struct adapter *adap) | |
3150 | { | |
3151 | t4_set_reg_field(adap, SGE_CONTROL, GLOBALENABLE, 0); | |
3152 | t4_intr_disable(adap); | |
3153 | dev_alert(adap->pdev_dev, "encountered fatal error, adapter stopped\n"); | |
3154 | } | |
3155 | ||
3156 | static void setup_memwin(struct adapter *adap) | |
3157 | { | |
3158 | u32 bar0; | |
3159 | ||
3160 | bar0 = pci_resource_start(adap->pdev, 0); /* truncation intentional */ | |
3161 | t4_write_reg(adap, PCIE_MEM_ACCESS_REG(PCIE_MEM_ACCESS_BASE_WIN, 0), | |
3162 | (bar0 + MEMWIN0_BASE) | BIR(0) | | |
3163 | WINDOW(ilog2(MEMWIN0_APERTURE) - 10)); | |
3164 | t4_write_reg(adap, PCIE_MEM_ACCESS_REG(PCIE_MEM_ACCESS_BASE_WIN, 1), | |
3165 | (bar0 + MEMWIN1_BASE) | BIR(0) | | |
3166 | WINDOW(ilog2(MEMWIN1_APERTURE) - 10)); | |
3167 | t4_write_reg(adap, PCIE_MEM_ACCESS_REG(PCIE_MEM_ACCESS_BASE_WIN, 2), | |
3168 | (bar0 + MEMWIN2_BASE) | BIR(0) | | |
3169 | WINDOW(ilog2(MEMWIN2_APERTURE) - 10)); | |
636f9d37 VP |
3170 | } |
3171 | ||
3172 | static void setup_memwin_rdma(struct adapter *adap) | |
3173 | { | |
1ae970e0 DM |
3174 | if (adap->vres.ocq.size) { |
3175 | unsigned int start, sz_kb; | |
3176 | ||
3177 | start = pci_resource_start(adap->pdev, 2) + | |
3178 | OCQ_WIN_OFFSET(adap->pdev, &adap->vres); | |
3179 | sz_kb = roundup_pow_of_two(adap->vres.ocq.size) >> 10; | |
3180 | t4_write_reg(adap, | |
3181 | PCIE_MEM_ACCESS_REG(PCIE_MEM_ACCESS_BASE_WIN, 3), | |
3182 | start | BIR(1) | WINDOW(ilog2(sz_kb))); | |
3183 | t4_write_reg(adap, | |
3184 | PCIE_MEM_ACCESS_REG(PCIE_MEM_ACCESS_OFFSET, 3), | |
3185 | adap->vres.ocq.start); | |
3186 | t4_read_reg(adap, | |
3187 | PCIE_MEM_ACCESS_REG(PCIE_MEM_ACCESS_OFFSET, 3)); | |
3188 | } | |
b8ff05a9 DM |
3189 | } |
3190 | ||
02b5fb8e DM |
3191 | static int adap_init1(struct adapter *adap, struct fw_caps_config_cmd *c) |
3192 | { | |
3193 | u32 v; | |
3194 | int ret; | |
3195 | ||
3196 | /* get device capabilities */ | |
3197 | memset(c, 0, sizeof(*c)); | |
3198 | c->op_to_write = htonl(FW_CMD_OP(FW_CAPS_CONFIG_CMD) | | |
3199 | FW_CMD_REQUEST | FW_CMD_READ); | |
3200 | c->retval_len16 = htonl(FW_LEN16(*c)); | |
060e0c75 | 3201 | ret = t4_wr_mbox(adap, adap->fn, c, sizeof(*c), c); |
02b5fb8e DM |
3202 | if (ret < 0) |
3203 | return ret; | |
3204 | ||
3205 | /* select capabilities we'll be using */ | |
3206 | if (c->niccaps & htons(FW_CAPS_CONFIG_NIC_VM)) { | |
3207 | if (!vf_acls) | |
3208 | c->niccaps ^= htons(FW_CAPS_CONFIG_NIC_VM); | |
3209 | else | |
3210 | c->niccaps = htons(FW_CAPS_CONFIG_NIC_VM); | |
3211 | } else if (vf_acls) { | |
3212 | dev_err(adap->pdev_dev, "virtualization ACLs not supported"); | |
3213 | return ret; | |
3214 | } | |
3215 | c->op_to_write = htonl(FW_CMD_OP(FW_CAPS_CONFIG_CMD) | | |
3216 | FW_CMD_REQUEST | FW_CMD_WRITE); | |
060e0c75 | 3217 | ret = t4_wr_mbox(adap, adap->fn, c, sizeof(*c), NULL); |
02b5fb8e DM |
3218 | if (ret < 0) |
3219 | return ret; | |
3220 | ||
060e0c75 | 3221 | ret = t4_config_glbl_rss(adap, adap->fn, |
02b5fb8e DM |
3222 | FW_RSS_GLB_CONFIG_CMD_MODE_BASICVIRTUAL, |
3223 | FW_RSS_GLB_CONFIG_CMD_TNLMAPEN | | |
3224 | FW_RSS_GLB_CONFIG_CMD_TNLALLLKP); | |
3225 | if (ret < 0) | |
3226 | return ret; | |
3227 | ||
060e0c75 DM |
3228 | ret = t4_cfg_pfvf(adap, adap->fn, adap->fn, 0, MAX_EGRQ, 64, MAX_INGQ, |
3229 | 0, 0, 4, 0xf, 0xf, 16, FW_CMD_CAP_PF, FW_CMD_CAP_PF); | |
02b5fb8e DM |
3230 | if (ret < 0) |
3231 | return ret; | |
3232 | ||
3233 | t4_sge_init(adap); | |
3234 | ||
02b5fb8e DM |
3235 | /* tweak some settings */ |
3236 | t4_write_reg(adap, TP_SHIFT_CNT, 0x64f8849); | |
3237 | t4_write_reg(adap, ULP_RX_TDDP_PSZ, HPZ0(PAGE_SHIFT - 12)); | |
3238 | t4_write_reg(adap, TP_PIO_ADDR, TP_INGRESS_CONFIG); | |
3239 | v = t4_read_reg(adap, TP_PIO_DATA); | |
3240 | t4_write_reg(adap, TP_PIO_DATA, v & ~CSUM_HAS_PSEUDO_HDR); | |
060e0c75 DM |
3241 | |
3242 | /* get basic stuff going */ | |
3243 | return t4_early_init(adap, adap->fn); | |
02b5fb8e DM |
3244 | } |
3245 | ||
b8ff05a9 DM |
3246 | /* |
3247 | * Max # of ATIDs. The absolute HW max is 16K but we keep it lower. | |
3248 | */ | |
3249 | #define MAX_ATIDS 8192U | |
3250 | ||
636f9d37 VP |
3251 | /* |
3252 | * Phase 0 of initialization: contact FW, obtain config, perform basic init. | |
3253 | * | |
3254 | * If the firmware we're dealing with has Configuration File support, then | |
3255 | * we use that to perform all configuration | |
3256 | */ | |
3257 | ||
3258 | /* | |
3259 | * Tweak configuration based on module parameters, etc. Most of these have | |
3260 | * defaults assigned to them by Firmware Configuration Files (if we're using | |
3261 | * them) but need to be explicitly set if we're using hard-coded | |
3262 | * initialization. But even in the case of using Firmware Configuration | |
3263 | * Files, we'd like to expose the ability to change these via module | |
3264 | * parameters so these are essentially common tweaks/settings for | |
3265 | * Configuration Files and hard-coded initialization ... | |
3266 | */ | |
3267 | static int adap_init0_tweaks(struct adapter *adapter) | |
3268 | { | |
3269 | /* | |
3270 | * Fix up various Host-Dependent Parameters like Page Size, Cache | |
3271 | * Line Size, etc. The firmware default is for a 4KB Page Size and | |
3272 | * 64B Cache Line Size ... | |
3273 | */ | |
3274 | t4_fixup_host_params(adapter, PAGE_SIZE, L1_CACHE_BYTES); | |
3275 | ||
3276 | /* | |
3277 | * Process module parameters which affect early initialization. | |
3278 | */ | |
3279 | if (rx_dma_offset != 2 && rx_dma_offset != 0) { | |
3280 | dev_err(&adapter->pdev->dev, | |
3281 | "Ignoring illegal rx_dma_offset=%d, using 2\n", | |
3282 | rx_dma_offset); | |
3283 | rx_dma_offset = 2; | |
3284 | } | |
3285 | t4_set_reg_field(adapter, SGE_CONTROL, | |
3286 | PKTSHIFT_MASK, | |
3287 | PKTSHIFT(rx_dma_offset)); | |
3288 | ||
3289 | /* | |
3290 | * Don't include the "IP Pseudo Header" in CPL_RX_PKT checksums: Linux | |
3291 | * adds the pseudo header itself. | |
3292 | */ | |
3293 | t4_tp_wr_bits_indirect(adapter, TP_INGRESS_CONFIG, | |
3294 | CSUM_HAS_PSEUDO_HDR, 0); | |
3295 | ||
3296 | return 0; | |
3297 | } | |
3298 | ||
3299 | /* | |
3300 | * Attempt to initialize the adapter via a Firmware Configuration File. | |
3301 | */ | |
3302 | static int adap_init0_config(struct adapter *adapter, int reset) | |
3303 | { | |
3304 | struct fw_caps_config_cmd caps_cmd; | |
3305 | const struct firmware *cf; | |
3306 | unsigned long mtype = 0, maddr = 0; | |
3307 | u32 finiver, finicsum, cfcsum; | |
3308 | int ret, using_flash; | |
3309 | ||
3310 | /* | |
3311 | * Reset device if necessary. | |
3312 | */ | |
3313 | if (reset) { | |
3314 | ret = t4_fw_reset(adapter, adapter->mbox, | |
3315 | PIORSTMODE | PIORST); | |
3316 | if (ret < 0) | |
3317 | goto bye; | |
3318 | } | |
3319 | ||
3320 | /* | |
3321 | * If we have a T4 configuration file under /lib/firmware/cxgb4/, | |
3322 | * then use that. Otherwise, use the configuration file stored | |
3323 | * in the adapter flash ... | |
3324 | */ | |
3325 | ret = request_firmware(&cf, FW_CFNAME, adapter->pdev_dev); | |
3326 | if (ret < 0) { | |
3327 | using_flash = 1; | |
3328 | mtype = FW_MEMTYPE_CF_FLASH; | |
3329 | maddr = t4_flash_cfg_addr(adapter); | |
3330 | } else { | |
3331 | u32 params[7], val[7]; | |
3332 | ||
3333 | using_flash = 0; | |
3334 | if (cf->size >= FLASH_CFG_MAX_SIZE) | |
3335 | ret = -ENOMEM; | |
3336 | else { | |
3337 | params[0] = (FW_PARAMS_MNEM(FW_PARAMS_MNEM_DEV) | | |
3338 | FW_PARAMS_PARAM_X(FW_PARAMS_PARAM_DEV_CF)); | |
3339 | ret = t4_query_params(adapter, adapter->mbox, | |
3340 | adapter->fn, 0, 1, params, val); | |
3341 | if (ret == 0) { | |
3342 | /* | |
3343 | * For t4_memory_write() below addresses and | |
3344 | * sizes have to be in terms of multiples of 4 | |
3345 | * bytes. So, if the Configuration File isn't | |
3346 | * a multiple of 4 bytes in length we'll have | |
3347 | * to write that out separately since we can't | |
3348 | * guarantee that the bytes following the | |
3349 | * residual byte in the buffer returned by | |
3350 | * request_firmware() are zeroed out ... | |
3351 | */ | |
3352 | size_t resid = cf->size & 0x3; | |
3353 | size_t size = cf->size & ~0x3; | |
3354 | __be32 *data = (__be32 *)cf->data; | |
3355 | ||
3356 | mtype = FW_PARAMS_PARAM_Y_GET(val[0]); | |
3357 | maddr = FW_PARAMS_PARAM_Z_GET(val[0]) << 16; | |
3358 | ||
3359 | ret = t4_memory_write(adapter, mtype, maddr, | |
3360 | size, data); | |
3361 | if (ret == 0 && resid != 0) { | |
3362 | union { | |
3363 | __be32 word; | |
3364 | char buf[4]; | |
3365 | } last; | |
3366 | int i; | |
3367 | ||
3368 | last.word = data[size >> 2]; | |
3369 | for (i = resid; i < 4; i++) | |
3370 | last.buf[i] = 0; | |
3371 | ret = t4_memory_write(adapter, mtype, | |
3372 | maddr + size, | |
3373 | 4, &last.word); | |
3374 | } | |
3375 | } | |
3376 | } | |
3377 | ||
3378 | release_firmware(cf); | |
3379 | if (ret) | |
3380 | goto bye; | |
3381 | } | |
3382 | ||
3383 | /* | |
3384 | * Issue a Capability Configuration command to the firmware to get it | |
3385 | * to parse the Configuration File. We don't use t4_fw_config_file() | |
3386 | * because we want the ability to modify various features after we've | |
3387 | * processed the configuration file ... | |
3388 | */ | |
3389 | memset(&caps_cmd, 0, sizeof(caps_cmd)); | |
3390 | caps_cmd.op_to_write = | |
3391 | htonl(FW_CMD_OP(FW_CAPS_CONFIG_CMD) | | |
3392 | FW_CMD_REQUEST | | |
3393 | FW_CMD_READ); | |
3394 | caps_cmd.retval_len16 = | |
3395 | htonl(FW_CAPS_CONFIG_CMD_CFVALID | | |
3396 | FW_CAPS_CONFIG_CMD_MEMTYPE_CF(mtype) | | |
3397 | FW_CAPS_CONFIG_CMD_MEMADDR64K_CF(maddr >> 16) | | |
3398 | FW_LEN16(caps_cmd)); | |
3399 | ret = t4_wr_mbox(adapter, adapter->mbox, &caps_cmd, sizeof(caps_cmd), | |
3400 | &caps_cmd); | |
3401 | if (ret < 0) | |
3402 | goto bye; | |
3403 | ||
3404 | finiver = ntohl(caps_cmd.finiver); | |
3405 | finicsum = ntohl(caps_cmd.finicsum); | |
3406 | cfcsum = ntohl(caps_cmd.cfcsum); | |
3407 | if (finicsum != cfcsum) | |
3408 | dev_warn(adapter->pdev_dev, "Configuration File checksum "\ | |
3409 | "mismatch: [fini] csum=%#x, computed csum=%#x\n", | |
3410 | finicsum, cfcsum); | |
3411 | ||
3412 | /* | |
3413 | * If we're a pure NIC driver then disable all offloading facilities. | |
3414 | * This will allow the firmware to optimize aspects of the hardware | |
3415 | * configuration which will result in improved performance. | |
3416 | */ | |
3417 | caps_cmd.ofldcaps = 0; | |
3418 | caps_cmd.iscsicaps = 0; | |
3419 | caps_cmd.rdmacaps = 0; | |
3420 | caps_cmd.fcoecaps = 0; | |
3421 | ||
3422 | /* | |
3423 | * And now tell the firmware to use the configuration we just loaded. | |
3424 | */ | |
3425 | caps_cmd.op_to_write = | |
3426 | htonl(FW_CMD_OP(FW_CAPS_CONFIG_CMD) | | |
3427 | FW_CMD_REQUEST | | |
3428 | FW_CMD_WRITE); | |
3429 | caps_cmd.retval_len16 = htonl(FW_LEN16(caps_cmd)); | |
3430 | ret = t4_wr_mbox(adapter, adapter->mbox, &caps_cmd, sizeof(caps_cmd), | |
3431 | NULL); | |
3432 | if (ret < 0) | |
3433 | goto bye; | |
3434 | ||
3435 | /* | |
3436 | * Tweak configuration based on system architecture, module | |
3437 | * parameters, etc. | |
3438 | */ | |
3439 | ret = adap_init0_tweaks(adapter); | |
3440 | if (ret < 0) | |
3441 | goto bye; | |
3442 | ||
3443 | /* | |
3444 | * And finally tell the firmware to initialize itself using the | |
3445 | * parameters from the Configuration File. | |
3446 | */ | |
3447 | ret = t4_fw_initialize(adapter, adapter->mbox); | |
3448 | if (ret < 0) | |
3449 | goto bye; | |
3450 | ||
3451 | /* | |
3452 | * Return successfully and note that we're operating with parameters | |
3453 | * not supplied by the driver, rather than from hard-wired | |
3454 | * initialization constants burried in the driver. | |
3455 | */ | |
3456 | adapter->flags |= USING_SOFT_PARAMS; | |
3457 | dev_info(adapter->pdev_dev, "Successfully configured using Firmware "\ | |
3458 | "Configuration File %s, version %#x, computed checksum %#x\n", | |
3459 | (using_flash | |
3460 | ? "in device FLASH" | |
3461 | : "/lib/firmware/" FW_CFNAME), | |
3462 | finiver, cfcsum); | |
3463 | return 0; | |
3464 | ||
3465 | /* | |
3466 | * Something bad happened. Return the error ... (If the "error" | |
3467 | * is that there's no Configuration File on the adapter we don't | |
3468 | * want to issue a warning since this is fairly common.) | |
3469 | */ | |
3470 | bye: | |
3471 | if (ret != -ENOENT) | |
3472 | dev_warn(adapter->pdev_dev, "Configuration file error %d\n", | |
3473 | -ret); | |
3474 | return ret; | |
3475 | } | |
3476 | ||
13ee15d3 VP |
3477 | /* |
3478 | * Attempt to initialize the adapter via hard-coded, driver supplied | |
3479 | * parameters ... | |
3480 | */ | |
3481 | static int adap_init0_no_config(struct adapter *adapter, int reset) | |
3482 | { | |
3483 | struct sge *s = &adapter->sge; | |
3484 | struct fw_caps_config_cmd caps_cmd; | |
3485 | u32 v; | |
3486 | int i, ret; | |
3487 | ||
3488 | /* | |
3489 | * Reset device if necessary | |
3490 | */ | |
3491 | if (reset) { | |
3492 | ret = t4_fw_reset(adapter, adapter->mbox, | |
3493 | PIORSTMODE | PIORST); | |
3494 | if (ret < 0) | |
3495 | goto bye; | |
3496 | } | |
3497 | ||
3498 | /* | |
3499 | * Get device capabilities and select which we'll be using. | |
3500 | */ | |
3501 | memset(&caps_cmd, 0, sizeof(caps_cmd)); | |
3502 | caps_cmd.op_to_write = htonl(FW_CMD_OP(FW_CAPS_CONFIG_CMD) | | |
3503 | FW_CMD_REQUEST | FW_CMD_READ); | |
3504 | caps_cmd.retval_len16 = htonl(FW_LEN16(caps_cmd)); | |
3505 | ret = t4_wr_mbox(adapter, adapter->mbox, &caps_cmd, sizeof(caps_cmd), | |
3506 | &caps_cmd); | |
3507 | if (ret < 0) | |
3508 | goto bye; | |
3509 | ||
3510 | #ifndef CONFIG_CHELSIO_T4_OFFLOAD | |
3511 | /* | |
3512 | * If we're a pure NIC driver then disable all offloading facilities. | |
3513 | * This will allow the firmware to optimize aspects of the hardware | |
3514 | * configuration which will result in improved performance. | |
3515 | */ | |
3516 | caps_cmd.ofldcaps = 0; | |
3517 | caps_cmd.iscsicaps = 0; | |
3518 | caps_cmd.rdmacaps = 0; | |
3519 | caps_cmd.fcoecaps = 0; | |
3520 | #endif | |
3521 | ||
3522 | if (caps_cmd.niccaps & htons(FW_CAPS_CONFIG_NIC_VM)) { | |
3523 | if (!vf_acls) | |
3524 | caps_cmd.niccaps ^= htons(FW_CAPS_CONFIG_NIC_VM); | |
3525 | else | |
3526 | caps_cmd.niccaps = htons(FW_CAPS_CONFIG_NIC_VM); | |
3527 | } else if (vf_acls) { | |
3528 | dev_err(adapter->pdev_dev, "virtualization ACLs not supported"); | |
3529 | goto bye; | |
3530 | } | |
3531 | caps_cmd.op_to_write = htonl(FW_CMD_OP(FW_CAPS_CONFIG_CMD) | | |
3532 | FW_CMD_REQUEST | FW_CMD_WRITE); | |
3533 | ret = t4_wr_mbox(adapter, adapter->mbox, &caps_cmd, sizeof(caps_cmd), | |
3534 | NULL); | |
3535 | if (ret < 0) | |
3536 | goto bye; | |
3537 | ||
3538 | /* | |
3539 | * Tweak configuration based on system architecture, module | |
3540 | * parameters, etc. | |
3541 | */ | |
3542 | ret = adap_init0_tweaks(adapter); | |
3543 | if (ret < 0) | |
3544 | goto bye; | |
3545 | ||
3546 | /* | |
3547 | * Select RSS Global Mode we want to use. We use "Basic Virtual" | |
3548 | * mode which maps each Virtual Interface to its own section of | |
3549 | * the RSS Table and we turn on all map and hash enables ... | |
3550 | */ | |
3551 | adapter->flags |= RSS_TNLALLLOOKUP; | |
3552 | ret = t4_config_glbl_rss(adapter, adapter->mbox, | |
3553 | FW_RSS_GLB_CONFIG_CMD_MODE_BASICVIRTUAL, | |
3554 | FW_RSS_GLB_CONFIG_CMD_TNLMAPEN | | |
3555 | FW_RSS_GLB_CONFIG_CMD_HASHTOEPLITZ | | |
3556 | ((adapter->flags & RSS_TNLALLLOOKUP) ? | |
3557 | FW_RSS_GLB_CONFIG_CMD_TNLALLLKP : 0)); | |
3558 | if (ret < 0) | |
3559 | goto bye; | |
3560 | ||
3561 | /* | |
3562 | * Set up our own fundamental resource provisioning ... | |
3563 | */ | |
3564 | ret = t4_cfg_pfvf(adapter, adapter->mbox, adapter->fn, 0, | |
3565 | PFRES_NEQ, PFRES_NETHCTRL, | |
3566 | PFRES_NIQFLINT, PFRES_NIQ, | |
3567 | PFRES_TC, PFRES_NVI, | |
3568 | FW_PFVF_CMD_CMASK_MASK, | |
3569 | pfvfres_pmask(adapter, adapter->fn, 0), | |
3570 | PFRES_NEXACTF, | |
3571 | PFRES_R_CAPS, PFRES_WX_CAPS); | |
3572 | if (ret < 0) | |
3573 | goto bye; | |
3574 | ||
3575 | /* | |
3576 | * Perform low level SGE initialization. We need to do this before we | |
3577 | * send the firmware the INITIALIZE command because that will cause | |
3578 | * any other PF Drivers which are waiting for the Master | |
3579 | * Initialization to proceed forward. | |
3580 | */ | |
3581 | for (i = 0; i < SGE_NTIMERS - 1; i++) | |
3582 | s->timer_val[i] = min(intr_holdoff[i], MAX_SGE_TIMERVAL); | |
3583 | s->timer_val[SGE_NTIMERS - 1] = MAX_SGE_TIMERVAL; | |
3584 | s->counter_val[0] = 1; | |
3585 | for (i = 1; i < SGE_NCOUNTERS; i++) | |
3586 | s->counter_val[i] = min(intr_cnt[i - 1], | |
3587 | THRESHOLD_0_GET(THRESHOLD_0_MASK)); | |
3588 | t4_sge_init(adapter); | |
3589 | ||
3590 | #ifdef CONFIG_PCI_IOV | |
3591 | /* | |
3592 | * Provision resource limits for Virtual Functions. We currently | |
3593 | * grant them all the same static resource limits except for the Port | |
3594 | * Access Rights Mask which we're assigning based on the PF. All of | |
3595 | * the static provisioning stuff for both the PF and VF really needs | |
3596 | * to be managed in a persistent manner for each device which the | |
3597 | * firmware controls. | |
3598 | */ | |
3599 | { | |
3600 | int pf, vf; | |
3601 | ||
3602 | for (pf = 0; pf < ARRAY_SIZE(num_vf); pf++) { | |
3603 | if (num_vf[pf] <= 0) | |
3604 | continue; | |
3605 | ||
3606 | /* VF numbering starts at 1! */ | |
3607 | for (vf = 1; vf <= num_vf[pf]; vf++) { | |
3608 | ret = t4_cfg_pfvf(adapter, adapter->mbox, | |
3609 | pf, vf, | |
3610 | VFRES_NEQ, VFRES_NETHCTRL, | |
3611 | VFRES_NIQFLINT, VFRES_NIQ, | |
3612 | VFRES_TC, VFRES_NVI, | |
3613 | FW_PFVF_CMD_CMASK_GET( | |
3614 | FW_PFVF_CMD_CMASK_MASK), | |
3615 | pfvfres_pmask( | |
3616 | adapter, pf, vf), | |
3617 | VFRES_NEXACTF, | |
3618 | VFRES_R_CAPS, VFRES_WX_CAPS); | |
3619 | if (ret < 0) | |
3620 | dev_warn(adapter->pdev_dev, | |
3621 | "failed to "\ | |
3622 | "provision pf/vf=%d/%d; " | |
3623 | "err=%d\n", pf, vf, ret); | |
3624 | } | |
3625 | } | |
3626 | } | |
3627 | #endif | |
3628 | ||
3629 | /* | |
3630 | * Set up the default filter mode. Later we'll want to implement this | |
3631 | * via a firmware command, etc. ... This needs to be done before the | |
3632 | * firmare initialization command ... If the selected set of fields | |
3633 | * isn't equal to the default value, we'll need to make sure that the | |
3634 | * field selections will fit in the 36-bit budget. | |
3635 | */ | |
3636 | if (tp_vlan_pri_map != TP_VLAN_PRI_MAP_DEFAULT) { | |
3637 | int i, bits = 0; | |
3638 | ||
3639 | for (i = TP_VLAN_PRI_MAP_FIRST; i <= TP_VLAN_PRI_MAP_LAST; i++) | |
3640 | switch (tp_vlan_pri_map & (1 << i)) { | |
3641 | case 0: | |
3642 | /* compressed filter field not enabled */ | |
3643 | break; | |
3644 | case FCOE_MASK: | |
3645 | bits += 1; | |
3646 | break; | |
3647 | case PORT_MASK: | |
3648 | bits += 3; | |
3649 | break; | |
3650 | case VNIC_ID_MASK: | |
3651 | bits += 17; | |
3652 | break; | |
3653 | case VLAN_MASK: | |
3654 | bits += 17; | |
3655 | break; | |
3656 | case TOS_MASK: | |
3657 | bits += 8; | |
3658 | break; | |
3659 | case PROTOCOL_MASK: | |
3660 | bits += 8; | |
3661 | break; | |
3662 | case ETHERTYPE_MASK: | |
3663 | bits += 16; | |
3664 | break; | |
3665 | case MACMATCH_MASK: | |
3666 | bits += 9; | |
3667 | break; | |
3668 | case MPSHITTYPE_MASK: | |
3669 | bits += 3; | |
3670 | break; | |
3671 | case FRAGMENTATION_MASK: | |
3672 | bits += 1; | |
3673 | break; | |
3674 | } | |
3675 | ||
3676 | if (bits > 36) { | |
3677 | dev_err(adapter->pdev_dev, | |
3678 | "tp_vlan_pri_map=%#x needs %d bits > 36;"\ | |
3679 | " using %#x\n", tp_vlan_pri_map, bits, | |
3680 | TP_VLAN_PRI_MAP_DEFAULT); | |
3681 | tp_vlan_pri_map = TP_VLAN_PRI_MAP_DEFAULT; | |
3682 | } | |
3683 | } | |
3684 | v = tp_vlan_pri_map; | |
3685 | t4_write_indirect(adapter, TP_PIO_ADDR, TP_PIO_DATA, | |
3686 | &v, 1, TP_VLAN_PRI_MAP); | |
3687 | ||
3688 | /* | |
3689 | * We need Five Tuple Lookup mode to be set in TP_GLOBAL_CONFIG order | |
3690 | * to support any of the compressed filter fields above. Newer | |
3691 | * versions of the firmware do this automatically but it doesn't hurt | |
3692 | * to set it here. Meanwhile, we do _not_ need to set Lookup Every | |
3693 | * Packet in TP_INGRESS_CONFIG to support matching non-TCP packets | |
3694 | * since the firmware automatically turns this on and off when we have | |
3695 | * a non-zero number of filters active (since it does have a | |
3696 | * performance impact). | |
3697 | */ | |
3698 | if (tp_vlan_pri_map) | |
3699 | t4_set_reg_field(adapter, TP_GLOBAL_CONFIG, | |
3700 | FIVETUPLELOOKUP_MASK, | |
3701 | FIVETUPLELOOKUP_MASK); | |
3702 | ||
3703 | /* | |
3704 | * Tweak some settings. | |
3705 | */ | |
3706 | t4_write_reg(adapter, TP_SHIFT_CNT, SYNSHIFTMAX(6) | | |
3707 | RXTSHIFTMAXR1(4) | RXTSHIFTMAXR2(15) | | |
3708 | PERSHIFTBACKOFFMAX(8) | PERSHIFTMAX(8) | | |
3709 | KEEPALIVEMAXR1(4) | KEEPALIVEMAXR2(9)); | |
3710 | ||
3711 | /* | |
3712 | * Get basic stuff going by issuing the Firmware Initialize command. | |
3713 | * Note that this _must_ be after all PFVF commands ... | |
3714 | */ | |
3715 | ret = t4_fw_initialize(adapter, adapter->mbox); | |
3716 | if (ret < 0) | |
3717 | goto bye; | |
3718 | ||
3719 | /* | |
3720 | * Return successfully! | |
3721 | */ | |
3722 | dev_info(adapter->pdev_dev, "Successfully configured using built-in "\ | |
3723 | "driver parameters\n"); | |
3724 | return 0; | |
3725 | ||
3726 | /* | |
3727 | * Something bad happened. Return the error ... | |
3728 | */ | |
3729 | bye: | |
3730 | return ret; | |
3731 | } | |
3732 | ||
b8ff05a9 DM |
3733 | /* |
3734 | * Phase 0 of initialization: contact FW, obtain config, perform basic init. | |
3735 | */ | |
3736 | static int adap_init0(struct adapter *adap) | |
3737 | { | |
3738 | int ret; | |
3739 | u32 v, port_vec; | |
3740 | enum dev_state state; | |
3741 | u32 params[7], val[7]; | |
636f9d37 | 3742 | int reset = 1, j; |
b8ff05a9 | 3743 | |
636f9d37 VP |
3744 | /* |
3745 | * Contact FW, advertising Master capability (and potentially forcing | |
3746 | * ourselves as the Master PF if our module parameter force_init is | |
3747 | * set). | |
3748 | */ | |
3749 | ret = t4_fw_hello(adap, adap->mbox, adap->fn, | |
3750 | force_init ? MASTER_MUST : MASTER_MAY, | |
3751 | &state); | |
b8ff05a9 DM |
3752 | if (ret < 0) { |
3753 | dev_err(adap->pdev_dev, "could not connect to FW, error %d\n", | |
3754 | ret); | |
3755 | return ret; | |
3756 | } | |
636f9d37 VP |
3757 | if (ret == adap->mbox) |
3758 | adap->flags |= MASTER_PF; | |
3759 | if (force_init && state == DEV_STATE_INIT) | |
3760 | state = DEV_STATE_UNINIT; | |
b8ff05a9 | 3761 | |
636f9d37 VP |
3762 | /* |
3763 | * If we're the Master PF Driver and the device is uninitialized, | |
3764 | * then let's consider upgrading the firmware ... (We always want | |
3765 | * to check the firmware version number in order to A. get it for | |
3766 | * later reporting and B. to warn if the currently loaded firmware | |
3767 | * is excessively mismatched relative to the driver.) | |
3768 | */ | |
3769 | ret = t4_check_fw_version(adap); | |
3770 | if ((adap->flags & MASTER_PF) && state != DEV_STATE_INIT) { | |
3771 | if (ret == -EINVAL || ret > 0) { | |
3772 | if (upgrade_fw(adap) >= 0) { | |
3773 | /* | |
3774 | * Note that the chip was reset as part of the | |
3775 | * firmware upgrade so we don't reset it again | |
3776 | * below and grab the new firmware version. | |
3777 | */ | |
3778 | reset = 0; | |
3779 | ret = t4_check_fw_version(adap); | |
3780 | } | |
3781 | } | |
3782 | if (ret < 0) | |
3783 | return ret; | |
3784 | } | |
b8ff05a9 | 3785 | |
636f9d37 VP |
3786 | /* |
3787 | * Grab VPD parameters. This should be done after we establish a | |
3788 | * connection to the firmware since some of the VPD parameters | |
3789 | * (notably the Core Clock frequency) are retrieved via requests to | |
3790 | * the firmware. On the other hand, we need these fairly early on | |
3791 | * so we do this right after getting ahold of the firmware. | |
3792 | */ | |
3793 | ret = get_vpd_params(adap, &adap->params.vpd); | |
a0881cab DM |
3794 | if (ret < 0) |
3795 | goto bye; | |
a0881cab | 3796 | |
636f9d37 | 3797 | /* |
13ee15d3 VP |
3798 | * Find out what ports are available to us. Note that we need to do |
3799 | * this before calling adap_init0_no_config() since it needs nports | |
3800 | * and portvec ... | |
636f9d37 VP |
3801 | */ |
3802 | v = | |
3803 | FW_PARAMS_MNEM(FW_PARAMS_MNEM_DEV) | | |
3804 | FW_PARAMS_PARAM_X(FW_PARAMS_PARAM_DEV_PORTVEC); | |
3805 | ret = t4_query_params(adap, adap->mbox, adap->fn, 0, 1, &v, &port_vec); | |
a0881cab DM |
3806 | if (ret < 0) |
3807 | goto bye; | |
3808 | ||
636f9d37 VP |
3809 | adap->params.nports = hweight32(port_vec); |
3810 | adap->params.portvec = port_vec; | |
3811 | ||
3812 | /* | |
3813 | * If the firmware is initialized already (and we're not forcing a | |
3814 | * master initialization), note that we're living with existing | |
3815 | * adapter parameters. Otherwise, it's time to try initializing the | |
3816 | * adapter ... | |
3817 | */ | |
3818 | if (state == DEV_STATE_INIT) { | |
3819 | dev_info(adap->pdev_dev, "Coming up as %s: "\ | |
3820 | "Adapter already initialized\n", | |
3821 | adap->flags & MASTER_PF ? "MASTER" : "SLAVE"); | |
3822 | adap->flags |= USING_SOFT_PARAMS; | |
3823 | } else { | |
3824 | dev_info(adap->pdev_dev, "Coming up as MASTER: "\ | |
3825 | "Initializing adapter\n"); | |
636f9d37 VP |
3826 | |
3827 | /* | |
3828 | * If the firmware doesn't support Configuration | |
3829 | * Files warn user and exit, | |
3830 | */ | |
3831 | if (ret < 0) | |
13ee15d3 | 3832 | dev_warn(adap->pdev_dev, "Firmware doesn't support " |
636f9d37 | 3833 | "configuration file.\n"); |
13ee15d3 VP |
3834 | if (force_old_init) |
3835 | ret = adap_init0_no_config(adap, reset); | |
636f9d37 VP |
3836 | else { |
3837 | /* | |
13ee15d3 VP |
3838 | * Find out whether we're dealing with a version of |
3839 | * the firmware which has configuration file support. | |
636f9d37 | 3840 | */ |
13ee15d3 VP |
3841 | params[0] = (FW_PARAMS_MNEM(FW_PARAMS_MNEM_DEV) | |
3842 | FW_PARAMS_PARAM_X(FW_PARAMS_PARAM_DEV_CF)); | |
3843 | ret = t4_query_params(adap, adap->mbox, adap->fn, 0, 1, | |
3844 | params, val); | |
636f9d37 | 3845 | |
13ee15d3 VP |
3846 | /* |
3847 | * If the firmware doesn't support Configuration | |
3848 | * Files, use the old Driver-based, hard-wired | |
3849 | * initialization. Otherwise, try using the | |
3850 | * Configuration File support and fall back to the | |
3851 | * Driver-based initialization if there's no | |
3852 | * Configuration File found. | |
3853 | */ | |
3854 | if (ret < 0) | |
3855 | ret = adap_init0_no_config(adap, reset); | |
3856 | else { | |
3857 | /* | |
3858 | * The firmware provides us with a memory | |
3859 | * buffer where we can load a Configuration | |
3860 | * File from the host if we want to override | |
3861 | * the Configuration File in flash. | |
3862 | */ | |
3863 | ||
3864 | ret = adap_init0_config(adap, reset); | |
3865 | if (ret == -ENOENT) { | |
3866 | dev_info(adap->pdev_dev, | |
3867 | "No Configuration File present " | |
3868 | "on adapter. Using hard-wired " | |
3869 | "configuration parameters.\n"); | |
3870 | ret = adap_init0_no_config(adap, reset); | |
3871 | } | |
636f9d37 VP |
3872 | } |
3873 | } | |
3874 | if (ret < 0) { | |
3875 | dev_err(adap->pdev_dev, | |
3876 | "could not initialize adapter, error %d\n", | |
3877 | -ret); | |
3878 | goto bye; | |
3879 | } | |
3880 | } | |
3881 | ||
3882 | /* | |
3883 | * If we're living with non-hard-coded parameters (either from a | |
3884 | * Firmware Configuration File or values programmed by a different PF | |
3885 | * Driver), give the SGE code a chance to pull in anything that it | |
3886 | * needs ... Note that this must be called after we retrieve our VPD | |
3887 | * parameters in order to know how to convert core ticks to seconds. | |
3888 | */ | |
3889 | if (adap->flags & USING_SOFT_PARAMS) { | |
3890 | ret = t4_sge_init(adap); | |
3891 | if (ret < 0) | |
3892 | goto bye; | |
3893 | } | |
3894 | ||
3895 | /* | |
3896 | * Grab some of our basic fundamental operating parameters. | |
3897 | */ | |
3898 | #define FW_PARAM_DEV(param) \ | |
3899 | (FW_PARAMS_MNEM(FW_PARAMS_MNEM_DEV) | \ | |
3900 | FW_PARAMS_PARAM_X(FW_PARAMS_PARAM_DEV_##param)) | |
3901 | ||
b8ff05a9 | 3902 | #define FW_PARAM_PFVF(param) \ |
636f9d37 VP |
3903 | FW_PARAMS_MNEM(FW_PARAMS_MNEM_PFVF) | \ |
3904 | FW_PARAMS_PARAM_X(FW_PARAMS_PARAM_PFVF_##param)| \ | |
3905 | FW_PARAMS_PARAM_Y(0) | \ | |
3906 | FW_PARAMS_PARAM_Z(0) | |
b8ff05a9 | 3907 | |
636f9d37 | 3908 | params[0] = FW_PARAM_PFVF(EQ_START); |
b8ff05a9 DM |
3909 | params[1] = FW_PARAM_PFVF(L2T_START); |
3910 | params[2] = FW_PARAM_PFVF(L2T_END); | |
3911 | params[3] = FW_PARAM_PFVF(FILTER_START); | |
3912 | params[4] = FW_PARAM_PFVF(FILTER_END); | |
e46dab4d | 3913 | params[5] = FW_PARAM_PFVF(IQFLINT_START); |
636f9d37 | 3914 | ret = t4_query_params(adap, adap->mbox, adap->fn, 0, 6, params, val); |
b8ff05a9 DM |
3915 | if (ret < 0) |
3916 | goto bye; | |
636f9d37 VP |
3917 | adap->sge.egr_start = val[0]; |
3918 | adap->l2t_start = val[1]; | |
3919 | adap->l2t_end = val[2]; | |
b8ff05a9 DM |
3920 | adap->tids.ftid_base = val[3]; |
3921 | adap->tids.nftids = val[4] - val[3] + 1; | |
e46dab4d | 3922 | adap->sge.ingr_start = val[5]; |
b8ff05a9 | 3923 | |
636f9d37 VP |
3924 | /* query params related to active filter region */ |
3925 | params[0] = FW_PARAM_PFVF(ACTIVE_FILTER_START); | |
3926 | params[1] = FW_PARAM_PFVF(ACTIVE_FILTER_END); | |
3927 | ret = t4_query_params(adap, adap->mbox, adap->fn, 0, 2, params, val); | |
3928 | /* If Active filter size is set we enable establishing | |
3929 | * offload connection through firmware work request | |
3930 | */ | |
3931 | if ((val[0] != val[1]) && (ret >= 0)) { | |
3932 | adap->flags |= FW_OFLD_CONN; | |
3933 | adap->tids.aftid_base = val[0]; | |
3934 | adap->tids.aftid_end = val[1]; | |
3935 | } | |
3936 | ||
3937 | #ifdef CONFIG_CHELSIO_T4_OFFLOAD | |
3938 | /* | |
3939 | * Get device capabilities so we can determine what resources we need | |
3940 | * to manage. | |
3941 | */ | |
3942 | memset(&caps_cmd, 0, sizeof(caps_cmd)); | |
3943 | caps_cmd.op_to_write = htonl(V_FW_CMD_OP(FW_CAPS_CONFIG_CMD) | | |
13ee15d3 VP |
3944 | FW_CMD_REQUEST | FW_CMD_READ); |
3945 | caps_cmd.retval_len16 = htonl(FW_LEN16(caps_cmd)); | |
636f9d37 VP |
3946 | ret = t4_wr_mbox(adap, adap->mbox, &caps_cmd, sizeof(caps_cmd), |
3947 | &caps_cmd); | |
3948 | if (ret < 0) | |
3949 | goto bye; | |
3950 | ||
13ee15d3 | 3951 | if (caps_cmd.ofldcaps) { |
b8ff05a9 DM |
3952 | /* query offload-related parameters */ |
3953 | params[0] = FW_PARAM_DEV(NTID); | |
3954 | params[1] = FW_PARAM_PFVF(SERVER_START); | |
3955 | params[2] = FW_PARAM_PFVF(SERVER_END); | |
3956 | params[3] = FW_PARAM_PFVF(TDDP_START); | |
3957 | params[4] = FW_PARAM_PFVF(TDDP_END); | |
3958 | params[5] = FW_PARAM_DEV(FLOWC_BUFFIFO_SZ); | |
636f9d37 VP |
3959 | ret = t4_query_params(adap, adap->mbox, adap->fn, 0, 6, |
3960 | params, val); | |
b8ff05a9 DM |
3961 | if (ret < 0) |
3962 | goto bye; | |
3963 | adap->tids.ntids = val[0]; | |
3964 | adap->tids.natids = min(adap->tids.ntids / 2, MAX_ATIDS); | |
3965 | adap->tids.stid_base = val[1]; | |
3966 | adap->tids.nstids = val[2] - val[1] + 1; | |
636f9d37 VP |
3967 | /* |
3968 | * Setup server filter region. Divide the availble filter | |
3969 | * region into two parts. Regular filters get 1/3rd and server | |
3970 | * filters get 2/3rd part. This is only enabled if workarond | |
3971 | * path is enabled. | |
3972 | * 1. For regular filters. | |
3973 | * 2. Server filter: This are special filters which are used | |
3974 | * to redirect SYN packets to offload queue. | |
3975 | */ | |
3976 | if (adap->flags & FW_OFLD_CONN && !is_bypass(adap)) { | |
3977 | adap->tids.sftid_base = adap->tids.ftid_base + | |
3978 | DIV_ROUND_UP(adap->tids.nftids, 3); | |
3979 | adap->tids.nsftids = adap->tids.nftids - | |
3980 | DIV_ROUND_UP(adap->tids.nftids, 3); | |
3981 | adap->tids.nftids = adap->tids.sftid_base - | |
3982 | adap->tids.ftid_base; | |
3983 | } | |
b8ff05a9 DM |
3984 | adap->vres.ddp.start = val[3]; |
3985 | adap->vres.ddp.size = val[4] - val[3] + 1; | |
3986 | adap->params.ofldq_wr_cred = val[5]; | |
636f9d37 VP |
3987 | |
3988 | params[0] = FW_PARAM_PFVF(ETHOFLD_START); | |
3989 | params[1] = FW_PARAM_PFVF(ETHOFLD_END); | |
3990 | ret = t4_query_params(adap, adap->mbox, adap->fn, 0, 2, | |
3991 | params, val); | |
3992 | if ((val[0] != val[1]) && (ret >= 0)) { | |
3993 | adap->tids.uotid_base = val[0]; | |
3994 | adap->tids.nuotids = val[1] - val[0] + 1; | |
3995 | } | |
3996 | ||
b8ff05a9 DM |
3997 | adap->params.offload = 1; |
3998 | } | |
636f9d37 | 3999 | if (caps_cmd.rdmacaps) { |
b8ff05a9 DM |
4000 | params[0] = FW_PARAM_PFVF(STAG_START); |
4001 | params[1] = FW_PARAM_PFVF(STAG_END); | |
4002 | params[2] = FW_PARAM_PFVF(RQ_START); | |
4003 | params[3] = FW_PARAM_PFVF(RQ_END); | |
4004 | params[4] = FW_PARAM_PFVF(PBL_START); | |
4005 | params[5] = FW_PARAM_PFVF(PBL_END); | |
636f9d37 VP |
4006 | ret = t4_query_params(adap, adap->mbox, adap->fn, 0, 6, |
4007 | params, val); | |
b8ff05a9 DM |
4008 | if (ret < 0) |
4009 | goto bye; | |
4010 | adap->vres.stag.start = val[0]; | |
4011 | adap->vres.stag.size = val[1] - val[0] + 1; | |
4012 | adap->vres.rq.start = val[2]; | |
4013 | adap->vres.rq.size = val[3] - val[2] + 1; | |
4014 | adap->vres.pbl.start = val[4]; | |
4015 | adap->vres.pbl.size = val[5] - val[4] + 1; | |
a0881cab DM |
4016 | |
4017 | params[0] = FW_PARAM_PFVF(SQRQ_START); | |
4018 | params[1] = FW_PARAM_PFVF(SQRQ_END); | |
4019 | params[2] = FW_PARAM_PFVF(CQ_START); | |
4020 | params[3] = FW_PARAM_PFVF(CQ_END); | |
1ae970e0 DM |
4021 | params[4] = FW_PARAM_PFVF(OCQ_START); |
4022 | params[5] = FW_PARAM_PFVF(OCQ_END); | |
636f9d37 | 4023 | ret = t4_query_params(adap, 0, 0, 0, 6, params, val); |
a0881cab DM |
4024 | if (ret < 0) |
4025 | goto bye; | |
4026 | adap->vres.qp.start = val[0]; | |
4027 | adap->vres.qp.size = val[1] - val[0] + 1; | |
4028 | adap->vres.cq.start = val[2]; | |
4029 | adap->vres.cq.size = val[3] - val[2] + 1; | |
1ae970e0 DM |
4030 | adap->vres.ocq.start = val[4]; |
4031 | adap->vres.ocq.size = val[5] - val[4] + 1; | |
b8ff05a9 | 4032 | } |
636f9d37 | 4033 | if (caps_cmd.iscsicaps) { |
b8ff05a9 DM |
4034 | params[0] = FW_PARAM_PFVF(ISCSI_START); |
4035 | params[1] = FW_PARAM_PFVF(ISCSI_END); | |
636f9d37 VP |
4036 | ret = t4_query_params(adap, adap->mbox, adap->fn, 0, 2, |
4037 | params, val); | |
b8ff05a9 DM |
4038 | if (ret < 0) |
4039 | goto bye; | |
4040 | adap->vres.iscsi.start = val[0]; | |
4041 | adap->vres.iscsi.size = val[1] - val[0] + 1; | |
4042 | } | |
4043 | #undef FW_PARAM_PFVF | |
4044 | #undef FW_PARAM_DEV | |
636f9d37 | 4045 | #endif /* CONFIG_CHELSIO_T4_OFFLOAD */ |
b8ff05a9 | 4046 | |
636f9d37 VP |
4047 | /* |
4048 | * These are finalized by FW initialization, load their values now. | |
4049 | */ | |
b8ff05a9 DM |
4050 | v = t4_read_reg(adap, TP_TIMER_RESOLUTION); |
4051 | adap->params.tp.tre = TIMERRESOLUTION_GET(v); | |
636f9d37 | 4052 | adap->params.tp.dack_re = DELAYEDACKRESOLUTION_GET(v); |
b8ff05a9 DM |
4053 | t4_read_mtu_tbl(adap, adap->params.mtus, NULL); |
4054 | t4_load_mtus(adap, adap->params.mtus, adap->params.a_wnd, | |
4055 | adap->params.b_wnd); | |
7ee9ff94 | 4056 | |
636f9d37 VP |
4057 | /* MODQ_REQ_MAP defaults to setting queues 0-3 to chan 0-3 */ |
4058 | for (j = 0; j < NCHAN; j++) | |
4059 | adap->params.tp.tx_modq[j] = j; | |
7ee9ff94 | 4060 | |
636f9d37 | 4061 | adap->flags |= FW_OK; |
b8ff05a9 DM |
4062 | return 0; |
4063 | ||
4064 | /* | |
636f9d37 VP |
4065 | * Something bad happened. If a command timed out or failed with EIO |
4066 | * FW does not operate within its spec or something catastrophic | |
4067 | * happened to HW/FW, stop issuing commands. | |
b8ff05a9 | 4068 | */ |
636f9d37 VP |
4069 | bye: |
4070 | if (ret != -ETIMEDOUT && ret != -EIO) | |
4071 | t4_fw_bye(adap, adap->mbox); | |
b8ff05a9 DM |
4072 | return ret; |
4073 | } | |
4074 | ||
204dc3c0 DM |
4075 | /* EEH callbacks */ |
4076 | ||
4077 | static pci_ers_result_t eeh_err_detected(struct pci_dev *pdev, | |
4078 | pci_channel_state_t state) | |
4079 | { | |
4080 | int i; | |
4081 | struct adapter *adap = pci_get_drvdata(pdev); | |
4082 | ||
4083 | if (!adap) | |
4084 | goto out; | |
4085 | ||
4086 | rtnl_lock(); | |
4087 | adap->flags &= ~FW_OK; | |
4088 | notify_ulds(adap, CXGB4_STATE_START_RECOVERY); | |
4089 | for_each_port(adap, i) { | |
4090 | struct net_device *dev = adap->port[i]; | |
4091 | ||
4092 | netif_device_detach(dev); | |
4093 | netif_carrier_off(dev); | |
4094 | } | |
4095 | if (adap->flags & FULL_INIT_DONE) | |
4096 | cxgb_down(adap); | |
4097 | rtnl_unlock(); | |
4098 | pci_disable_device(pdev); | |
4099 | out: return state == pci_channel_io_perm_failure ? | |
4100 | PCI_ERS_RESULT_DISCONNECT : PCI_ERS_RESULT_NEED_RESET; | |
4101 | } | |
4102 | ||
4103 | static pci_ers_result_t eeh_slot_reset(struct pci_dev *pdev) | |
4104 | { | |
4105 | int i, ret; | |
4106 | struct fw_caps_config_cmd c; | |
4107 | struct adapter *adap = pci_get_drvdata(pdev); | |
4108 | ||
4109 | if (!adap) { | |
4110 | pci_restore_state(pdev); | |
4111 | pci_save_state(pdev); | |
4112 | return PCI_ERS_RESULT_RECOVERED; | |
4113 | } | |
4114 | ||
4115 | if (pci_enable_device(pdev)) { | |
4116 | dev_err(&pdev->dev, "cannot reenable PCI device after reset\n"); | |
4117 | return PCI_ERS_RESULT_DISCONNECT; | |
4118 | } | |
4119 | ||
4120 | pci_set_master(pdev); | |
4121 | pci_restore_state(pdev); | |
4122 | pci_save_state(pdev); | |
4123 | pci_cleanup_aer_uncorrect_error_status(pdev); | |
4124 | ||
4125 | if (t4_wait_dev_ready(adap) < 0) | |
4126 | return PCI_ERS_RESULT_DISCONNECT; | |
060e0c75 | 4127 | if (t4_fw_hello(adap, adap->fn, adap->fn, MASTER_MUST, NULL)) |
204dc3c0 DM |
4128 | return PCI_ERS_RESULT_DISCONNECT; |
4129 | adap->flags |= FW_OK; | |
4130 | if (adap_init1(adap, &c)) | |
4131 | return PCI_ERS_RESULT_DISCONNECT; | |
4132 | ||
4133 | for_each_port(adap, i) { | |
4134 | struct port_info *p = adap2pinfo(adap, i); | |
4135 | ||
060e0c75 DM |
4136 | ret = t4_alloc_vi(adap, adap->fn, p->tx_chan, adap->fn, 0, 1, |
4137 | NULL, NULL); | |
204dc3c0 DM |
4138 | if (ret < 0) |
4139 | return PCI_ERS_RESULT_DISCONNECT; | |
4140 | p->viid = ret; | |
4141 | p->xact_addr_filt = -1; | |
4142 | } | |
4143 | ||
4144 | t4_load_mtus(adap, adap->params.mtus, adap->params.a_wnd, | |
4145 | adap->params.b_wnd); | |
1ae970e0 | 4146 | setup_memwin(adap); |
204dc3c0 DM |
4147 | if (cxgb_up(adap)) |
4148 | return PCI_ERS_RESULT_DISCONNECT; | |
4149 | return PCI_ERS_RESULT_RECOVERED; | |
4150 | } | |
4151 | ||
4152 | static void eeh_resume(struct pci_dev *pdev) | |
4153 | { | |
4154 | int i; | |
4155 | struct adapter *adap = pci_get_drvdata(pdev); | |
4156 | ||
4157 | if (!adap) | |
4158 | return; | |
4159 | ||
4160 | rtnl_lock(); | |
4161 | for_each_port(adap, i) { | |
4162 | struct net_device *dev = adap->port[i]; | |
4163 | ||
4164 | if (netif_running(dev)) { | |
4165 | link_start(dev); | |
4166 | cxgb_set_rxmode(dev); | |
4167 | } | |
4168 | netif_device_attach(dev); | |
4169 | } | |
4170 | rtnl_unlock(); | |
4171 | } | |
4172 | ||
3646f0e5 | 4173 | static const struct pci_error_handlers cxgb4_eeh = { |
204dc3c0 DM |
4174 | .error_detected = eeh_err_detected, |
4175 | .slot_reset = eeh_slot_reset, | |
4176 | .resume = eeh_resume, | |
4177 | }; | |
4178 | ||
b8ff05a9 DM |
4179 | static inline bool is_10g_port(const struct link_config *lc) |
4180 | { | |
4181 | return (lc->supported & FW_PORT_CAP_SPEED_10G) != 0; | |
4182 | } | |
4183 | ||
4184 | static inline void init_rspq(struct sge_rspq *q, u8 timer_idx, u8 pkt_cnt_idx, | |
4185 | unsigned int size, unsigned int iqe_size) | |
4186 | { | |
4187 | q->intr_params = QINTR_TIMER_IDX(timer_idx) | | |
4188 | (pkt_cnt_idx < SGE_NCOUNTERS ? QINTR_CNT_EN : 0); | |
4189 | q->pktcnt_idx = pkt_cnt_idx < SGE_NCOUNTERS ? pkt_cnt_idx : 0; | |
4190 | q->iqe_len = iqe_size; | |
4191 | q->size = size; | |
4192 | } | |
4193 | ||
4194 | /* | |
4195 | * Perform default configuration of DMA queues depending on the number and type | |
4196 | * of ports we found and the number of available CPUs. Most settings can be | |
4197 | * modified by the admin prior to actual use. | |
4198 | */ | |
4199 | static void __devinit cfg_queues(struct adapter *adap) | |
4200 | { | |
4201 | struct sge *s = &adap->sge; | |
4202 | int i, q10g = 0, n10g = 0, qidx = 0; | |
4203 | ||
4204 | for_each_port(adap, i) | |
4205 | n10g += is_10g_port(&adap2pinfo(adap, i)->link_cfg); | |
4206 | ||
4207 | /* | |
4208 | * We default to 1 queue per non-10G port and up to # of cores queues | |
4209 | * per 10G port. | |
4210 | */ | |
4211 | if (n10g) | |
4212 | q10g = (MAX_ETH_QSETS - (adap->params.nports - n10g)) / n10g; | |
5952dde7 YM |
4213 | if (q10g > netif_get_num_default_rss_queues()) |
4214 | q10g = netif_get_num_default_rss_queues(); | |
b8ff05a9 DM |
4215 | |
4216 | for_each_port(adap, i) { | |
4217 | struct port_info *pi = adap2pinfo(adap, i); | |
4218 | ||
4219 | pi->first_qset = qidx; | |
4220 | pi->nqsets = is_10g_port(&pi->link_cfg) ? q10g : 1; | |
4221 | qidx += pi->nqsets; | |
4222 | } | |
4223 | ||
4224 | s->ethqsets = qidx; | |
4225 | s->max_ethqsets = qidx; /* MSI-X may lower it later */ | |
4226 | ||
4227 | if (is_offload(adap)) { | |
4228 | /* | |
4229 | * For offload we use 1 queue/channel if all ports are up to 1G, | |
4230 | * otherwise we divide all available queues amongst the channels | |
4231 | * capped by the number of available cores. | |
4232 | */ | |
4233 | if (n10g) { | |
4234 | i = min_t(int, ARRAY_SIZE(s->ofldrxq), | |
4235 | num_online_cpus()); | |
4236 | s->ofldqsets = roundup(i, adap->params.nports); | |
4237 | } else | |
4238 | s->ofldqsets = adap->params.nports; | |
4239 | /* For RDMA one Rx queue per channel suffices */ | |
4240 | s->rdmaqs = adap->params.nports; | |
4241 | } | |
4242 | ||
4243 | for (i = 0; i < ARRAY_SIZE(s->ethrxq); i++) { | |
4244 | struct sge_eth_rxq *r = &s->ethrxq[i]; | |
4245 | ||
4246 | init_rspq(&r->rspq, 0, 0, 1024, 64); | |
4247 | r->fl.size = 72; | |
4248 | } | |
4249 | ||
4250 | for (i = 0; i < ARRAY_SIZE(s->ethtxq); i++) | |
4251 | s->ethtxq[i].q.size = 1024; | |
4252 | ||
4253 | for (i = 0; i < ARRAY_SIZE(s->ctrlq); i++) | |
4254 | s->ctrlq[i].q.size = 512; | |
4255 | ||
4256 | for (i = 0; i < ARRAY_SIZE(s->ofldtxq); i++) | |
4257 | s->ofldtxq[i].q.size = 1024; | |
4258 | ||
4259 | for (i = 0; i < ARRAY_SIZE(s->ofldrxq); i++) { | |
4260 | struct sge_ofld_rxq *r = &s->ofldrxq[i]; | |
4261 | ||
4262 | init_rspq(&r->rspq, 0, 0, 1024, 64); | |
4263 | r->rspq.uld = CXGB4_ULD_ISCSI; | |
4264 | r->fl.size = 72; | |
4265 | } | |
4266 | ||
4267 | for (i = 0; i < ARRAY_SIZE(s->rdmarxq); i++) { | |
4268 | struct sge_ofld_rxq *r = &s->rdmarxq[i]; | |
4269 | ||
4270 | init_rspq(&r->rspq, 0, 0, 511, 64); | |
4271 | r->rspq.uld = CXGB4_ULD_RDMA; | |
4272 | r->fl.size = 72; | |
4273 | } | |
4274 | ||
4275 | init_rspq(&s->fw_evtq, 6, 0, 512, 64); | |
4276 | init_rspq(&s->intrq, 6, 0, 2 * MAX_INGQ, 64); | |
4277 | } | |
4278 | ||
4279 | /* | |
4280 | * Reduce the number of Ethernet queues across all ports to at most n. | |
4281 | * n provides at least one queue per port. | |
4282 | */ | |
4283 | static void __devinit reduce_ethqs(struct adapter *adap, int n) | |
4284 | { | |
4285 | int i; | |
4286 | struct port_info *pi; | |
4287 | ||
4288 | while (n < adap->sge.ethqsets) | |
4289 | for_each_port(adap, i) { | |
4290 | pi = adap2pinfo(adap, i); | |
4291 | if (pi->nqsets > 1) { | |
4292 | pi->nqsets--; | |
4293 | adap->sge.ethqsets--; | |
4294 | if (adap->sge.ethqsets <= n) | |
4295 | break; | |
4296 | } | |
4297 | } | |
4298 | ||
4299 | n = 0; | |
4300 | for_each_port(adap, i) { | |
4301 | pi = adap2pinfo(adap, i); | |
4302 | pi->first_qset = n; | |
4303 | n += pi->nqsets; | |
4304 | } | |
4305 | } | |
4306 | ||
4307 | /* 2 MSI-X vectors needed for the FW queue and non-data interrupts */ | |
4308 | #define EXTRA_VECS 2 | |
4309 | ||
4310 | static int __devinit enable_msix(struct adapter *adap) | |
4311 | { | |
4312 | int ofld_need = 0; | |
4313 | int i, err, want, need; | |
4314 | struct sge *s = &adap->sge; | |
4315 | unsigned int nchan = adap->params.nports; | |
4316 | struct msix_entry entries[MAX_INGQ + 1]; | |
4317 | ||
4318 | for (i = 0; i < ARRAY_SIZE(entries); ++i) | |
4319 | entries[i].entry = i; | |
4320 | ||
4321 | want = s->max_ethqsets + EXTRA_VECS; | |
4322 | if (is_offload(adap)) { | |
4323 | want += s->rdmaqs + s->ofldqsets; | |
4324 | /* need nchan for each possible ULD */ | |
4325 | ofld_need = 2 * nchan; | |
4326 | } | |
4327 | need = adap->params.nports + EXTRA_VECS + ofld_need; | |
4328 | ||
4329 | while ((err = pci_enable_msix(adap->pdev, entries, want)) >= need) | |
4330 | want = err; | |
4331 | ||
4332 | if (!err) { | |
4333 | /* | |
4334 | * Distribute available vectors to the various queue groups. | |
4335 | * Every group gets its minimum requirement and NIC gets top | |
4336 | * priority for leftovers. | |
4337 | */ | |
4338 | i = want - EXTRA_VECS - ofld_need; | |
4339 | if (i < s->max_ethqsets) { | |
4340 | s->max_ethqsets = i; | |
4341 | if (i < s->ethqsets) | |
4342 | reduce_ethqs(adap, i); | |
4343 | } | |
4344 | if (is_offload(adap)) { | |
4345 | i = want - EXTRA_VECS - s->max_ethqsets; | |
4346 | i -= ofld_need - nchan; | |
4347 | s->ofldqsets = (i / nchan) * nchan; /* round down */ | |
4348 | } | |
4349 | for (i = 0; i < want; ++i) | |
4350 | adap->msix_info[i].vec = entries[i].vector; | |
4351 | } else if (err > 0) | |
4352 | dev_info(adap->pdev_dev, | |
4353 | "only %d MSI-X vectors left, not using MSI-X\n", err); | |
4354 | return err; | |
4355 | } | |
4356 | ||
4357 | #undef EXTRA_VECS | |
4358 | ||
671b0060 DM |
4359 | static int __devinit init_rss(struct adapter *adap) |
4360 | { | |
4361 | unsigned int i, j; | |
4362 | ||
4363 | for_each_port(adap, i) { | |
4364 | struct port_info *pi = adap2pinfo(adap, i); | |
4365 | ||
4366 | pi->rss = kcalloc(pi->rss_size, sizeof(u16), GFP_KERNEL); | |
4367 | if (!pi->rss) | |
4368 | return -ENOMEM; | |
4369 | for (j = 0; j < pi->rss_size; j++) | |
278bc429 | 4370 | pi->rss[j] = ethtool_rxfh_indir_default(j, pi->nqsets); |
671b0060 DM |
4371 | } |
4372 | return 0; | |
4373 | } | |
4374 | ||
118969ed | 4375 | static void __devinit print_port_info(const struct net_device *dev) |
b8ff05a9 DM |
4376 | { |
4377 | static const char *base[] = { | |
a0881cab | 4378 | "R XFI", "R XAUI", "T SGMII", "T XFI", "T XAUI", "KX4", "CX4", |
7d5e77aa | 4379 | "KX", "KR", "R SFP+", "KR/KX", "KR/KX/KX4" |
b8ff05a9 DM |
4380 | }; |
4381 | ||
b8ff05a9 | 4382 | char buf[80]; |
118969ed | 4383 | char *bufp = buf; |
f1a051b9 | 4384 | const char *spd = ""; |
118969ed DM |
4385 | const struct port_info *pi = netdev_priv(dev); |
4386 | const struct adapter *adap = pi->adapter; | |
f1a051b9 DM |
4387 | |
4388 | if (adap->params.pci.speed == PCI_EXP_LNKSTA_CLS_2_5GB) | |
4389 | spd = " 2.5 GT/s"; | |
4390 | else if (adap->params.pci.speed == PCI_EXP_LNKSTA_CLS_5_0GB) | |
4391 | spd = " 5 GT/s"; | |
b8ff05a9 | 4392 | |
118969ed DM |
4393 | if (pi->link_cfg.supported & FW_PORT_CAP_SPEED_100M) |
4394 | bufp += sprintf(bufp, "100/"); | |
4395 | if (pi->link_cfg.supported & FW_PORT_CAP_SPEED_1G) | |
4396 | bufp += sprintf(bufp, "1000/"); | |
4397 | if (pi->link_cfg.supported & FW_PORT_CAP_SPEED_10G) | |
4398 | bufp += sprintf(bufp, "10G/"); | |
4399 | if (bufp != buf) | |
4400 | --bufp; | |
4401 | sprintf(bufp, "BASE-%s", base[pi->port_type]); | |
4402 | ||
4403 | netdev_info(dev, "Chelsio %s rev %d %s %sNIC PCIe x%d%s%s\n", | |
4404 | adap->params.vpd.id, adap->params.rev, buf, | |
4405 | is_offload(adap) ? "R" : "", adap->params.pci.width, spd, | |
4406 | (adap->flags & USING_MSIX) ? " MSI-X" : | |
4407 | (adap->flags & USING_MSI) ? " MSI" : ""); | |
4408 | netdev_info(dev, "S/N: %s, E/C: %s\n", | |
4409 | adap->params.vpd.sn, adap->params.vpd.ec); | |
b8ff05a9 DM |
4410 | } |
4411 | ||
ef306b50 DM |
4412 | static void __devinit enable_pcie_relaxed_ordering(struct pci_dev *dev) |
4413 | { | |
e5c8ae5f | 4414 | pcie_capability_set_word(dev, PCI_EXP_DEVCTL, PCI_EXP_DEVCTL_RELAX_EN); |
ef306b50 DM |
4415 | } |
4416 | ||
06546391 DM |
4417 | /* |
4418 | * Free the following resources: | |
4419 | * - memory used for tables | |
4420 | * - MSI/MSI-X | |
4421 | * - net devices | |
4422 | * - resources FW is holding for us | |
4423 | */ | |
4424 | static void free_some_resources(struct adapter *adapter) | |
4425 | { | |
4426 | unsigned int i; | |
4427 | ||
4428 | t4_free_mem(adapter->l2t); | |
4429 | t4_free_mem(adapter->tids.tid_tab); | |
4430 | disable_msi(adapter); | |
4431 | ||
4432 | for_each_port(adapter, i) | |
671b0060 DM |
4433 | if (adapter->port[i]) { |
4434 | kfree(adap2pinfo(adapter, i)->rss); | |
06546391 | 4435 | free_netdev(adapter->port[i]); |
671b0060 | 4436 | } |
06546391 | 4437 | if (adapter->flags & FW_OK) |
060e0c75 | 4438 | t4_fw_bye(adapter, adapter->fn); |
06546391 DM |
4439 | } |
4440 | ||
2ed28baa | 4441 | #define TSO_FLAGS (NETIF_F_TSO | NETIF_F_TSO6 | NETIF_F_TSO_ECN) |
35d35682 | 4442 | #define VLAN_FEAT (NETIF_F_SG | NETIF_F_IP_CSUM | TSO_FLAGS | \ |
b8ff05a9 DM |
4443 | NETIF_F_IPV6_CSUM | NETIF_F_HIGHDMA) |
4444 | ||
4445 | static int __devinit init_one(struct pci_dev *pdev, | |
4446 | const struct pci_device_id *ent) | |
4447 | { | |
4448 | int func, i, err; | |
4449 | struct port_info *pi; | |
c8f44aff | 4450 | bool highdma = false; |
b8ff05a9 DM |
4451 | struct adapter *adapter = NULL; |
4452 | ||
4453 | printk_once(KERN_INFO "%s - version %s\n", DRV_DESC, DRV_VERSION); | |
4454 | ||
4455 | err = pci_request_regions(pdev, KBUILD_MODNAME); | |
4456 | if (err) { | |
4457 | /* Just info, some other driver may have claimed the device. */ | |
4458 | dev_info(&pdev->dev, "cannot obtain PCI resources\n"); | |
4459 | return err; | |
4460 | } | |
4461 | ||
060e0c75 | 4462 | /* We control everything through one PF */ |
b8ff05a9 | 4463 | func = PCI_FUNC(pdev->devfn); |
060e0c75 | 4464 | if (func != ent->driver_data) { |
204dc3c0 | 4465 | pci_save_state(pdev); /* to restore SR-IOV later */ |
b8ff05a9 | 4466 | goto sriov; |
204dc3c0 | 4467 | } |
b8ff05a9 DM |
4468 | |
4469 | err = pci_enable_device(pdev); | |
4470 | if (err) { | |
4471 | dev_err(&pdev->dev, "cannot enable PCI device\n"); | |
4472 | goto out_release_regions; | |
4473 | } | |
4474 | ||
4475 | if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64))) { | |
c8f44aff | 4476 | highdma = true; |
b8ff05a9 DM |
4477 | err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)); |
4478 | if (err) { | |
4479 | dev_err(&pdev->dev, "unable to obtain 64-bit DMA for " | |
4480 | "coherent allocations\n"); | |
4481 | goto out_disable_device; | |
4482 | } | |
4483 | } else { | |
4484 | err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)); | |
4485 | if (err) { | |
4486 | dev_err(&pdev->dev, "no usable DMA configuration\n"); | |
4487 | goto out_disable_device; | |
4488 | } | |
4489 | } | |
4490 | ||
4491 | pci_enable_pcie_error_reporting(pdev); | |
ef306b50 | 4492 | enable_pcie_relaxed_ordering(pdev); |
b8ff05a9 DM |
4493 | pci_set_master(pdev); |
4494 | pci_save_state(pdev); | |
4495 | ||
4496 | adapter = kzalloc(sizeof(*adapter), GFP_KERNEL); | |
4497 | if (!adapter) { | |
4498 | err = -ENOMEM; | |
4499 | goto out_disable_device; | |
4500 | } | |
4501 | ||
4502 | adapter->regs = pci_ioremap_bar(pdev, 0); | |
4503 | if (!adapter->regs) { | |
4504 | dev_err(&pdev->dev, "cannot map device registers\n"); | |
4505 | err = -ENOMEM; | |
4506 | goto out_free_adapter; | |
4507 | } | |
4508 | ||
4509 | adapter->pdev = pdev; | |
4510 | adapter->pdev_dev = &pdev->dev; | |
3069ee9b | 4511 | adapter->mbox = func; |
060e0c75 | 4512 | adapter->fn = func; |
b8ff05a9 DM |
4513 | adapter->msg_enable = dflt_msg_enable; |
4514 | memset(adapter->chan_map, 0xff, sizeof(adapter->chan_map)); | |
4515 | ||
4516 | spin_lock_init(&adapter->stats_lock); | |
4517 | spin_lock_init(&adapter->tid_release_lock); | |
4518 | ||
4519 | INIT_WORK(&adapter->tid_release_task, process_tid_release_list); | |
881806bc VP |
4520 | INIT_WORK(&adapter->db_full_task, process_db_full); |
4521 | INIT_WORK(&adapter->db_drop_task, process_db_drop); | |
b8ff05a9 DM |
4522 | |
4523 | err = t4_prep_adapter(adapter); | |
4524 | if (err) | |
4525 | goto out_unmap_bar; | |
636f9d37 | 4526 | setup_memwin(adapter); |
b8ff05a9 | 4527 | err = adap_init0(adapter); |
636f9d37 | 4528 | setup_memwin_rdma(adapter); |
b8ff05a9 DM |
4529 | if (err) |
4530 | goto out_unmap_bar; | |
4531 | ||
4532 | for_each_port(adapter, i) { | |
4533 | struct net_device *netdev; | |
4534 | ||
4535 | netdev = alloc_etherdev_mq(sizeof(struct port_info), | |
4536 | MAX_ETH_QSETS); | |
4537 | if (!netdev) { | |
4538 | err = -ENOMEM; | |
4539 | goto out_free_dev; | |
4540 | } | |
4541 | ||
4542 | SET_NETDEV_DEV(netdev, &pdev->dev); | |
4543 | ||
4544 | adapter->port[i] = netdev; | |
4545 | pi = netdev_priv(netdev); | |
4546 | pi->adapter = adapter; | |
4547 | pi->xact_addr_filt = -1; | |
b8ff05a9 | 4548 | pi->port_id = i; |
b8ff05a9 DM |
4549 | netdev->irq = pdev->irq; |
4550 | ||
2ed28baa MM |
4551 | netdev->hw_features = NETIF_F_SG | TSO_FLAGS | |
4552 | NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | | |
4553 | NETIF_F_RXCSUM | NETIF_F_RXHASH | | |
4554 | NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX; | |
c8f44aff MM |
4555 | if (highdma) |
4556 | netdev->hw_features |= NETIF_F_HIGHDMA; | |
4557 | netdev->features |= netdev->hw_features; | |
b8ff05a9 DM |
4558 | netdev->vlan_features = netdev->features & VLAN_FEAT; |
4559 | ||
01789349 JP |
4560 | netdev->priv_flags |= IFF_UNICAST_FLT; |
4561 | ||
b8ff05a9 DM |
4562 | netdev->netdev_ops = &cxgb4_netdev_ops; |
4563 | SET_ETHTOOL_OPS(netdev, &cxgb_ethtool_ops); | |
4564 | } | |
4565 | ||
4566 | pci_set_drvdata(pdev, adapter); | |
4567 | ||
4568 | if (adapter->flags & FW_OK) { | |
060e0c75 | 4569 | err = t4_port_init(adapter, func, func, 0); |
b8ff05a9 DM |
4570 | if (err) |
4571 | goto out_free_dev; | |
4572 | } | |
4573 | ||
4574 | /* | |
4575 | * Configure queues and allocate tables now, they can be needed as | |
4576 | * soon as the first register_netdev completes. | |
4577 | */ | |
4578 | cfg_queues(adapter); | |
4579 | ||
4580 | adapter->l2t = t4_init_l2t(); | |
4581 | if (!adapter->l2t) { | |
4582 | /* We tolerate a lack of L2T, giving up some functionality */ | |
4583 | dev_warn(&pdev->dev, "could not allocate L2T, continuing\n"); | |
4584 | adapter->params.offload = 0; | |
4585 | } | |
4586 | ||
4587 | if (is_offload(adapter) && tid_init(&adapter->tids) < 0) { | |
4588 | dev_warn(&pdev->dev, "could not allocate TID table, " | |
4589 | "continuing\n"); | |
4590 | adapter->params.offload = 0; | |
4591 | } | |
4592 | ||
f7cabcdd DM |
4593 | /* See what interrupts we'll be using */ |
4594 | if (msi > 1 && enable_msix(adapter) == 0) | |
4595 | adapter->flags |= USING_MSIX; | |
4596 | else if (msi > 0 && pci_enable_msi(pdev) == 0) | |
4597 | adapter->flags |= USING_MSI; | |
4598 | ||
671b0060 DM |
4599 | err = init_rss(adapter); |
4600 | if (err) | |
4601 | goto out_free_dev; | |
4602 | ||
b8ff05a9 DM |
4603 | /* |
4604 | * The card is now ready to go. If any errors occur during device | |
4605 | * registration we do not fail the whole card but rather proceed only | |
4606 | * with the ports we manage to register successfully. However we must | |
4607 | * register at least one net device. | |
4608 | */ | |
4609 | for_each_port(adapter, i) { | |
a57cabe0 DM |
4610 | pi = adap2pinfo(adapter, i); |
4611 | netif_set_real_num_tx_queues(adapter->port[i], pi->nqsets); | |
4612 | netif_set_real_num_rx_queues(adapter->port[i], pi->nqsets); | |
4613 | ||
b8ff05a9 DM |
4614 | err = register_netdev(adapter->port[i]); |
4615 | if (err) | |
b1a3c2b6 | 4616 | break; |
b1a3c2b6 DM |
4617 | adapter->chan_map[pi->tx_chan] = i; |
4618 | print_port_info(adapter->port[i]); | |
b8ff05a9 | 4619 | } |
b1a3c2b6 | 4620 | if (i == 0) { |
b8ff05a9 DM |
4621 | dev_err(&pdev->dev, "could not register any net devices\n"); |
4622 | goto out_free_dev; | |
4623 | } | |
b1a3c2b6 DM |
4624 | if (err) { |
4625 | dev_warn(&pdev->dev, "only %d net devices registered\n", i); | |
4626 | err = 0; | |
6403eab1 | 4627 | } |
b8ff05a9 DM |
4628 | |
4629 | if (cxgb4_debugfs_root) { | |
4630 | adapter->debugfs_root = debugfs_create_dir(pci_name(pdev), | |
4631 | cxgb4_debugfs_root); | |
4632 | setup_debugfs(adapter); | |
4633 | } | |
4634 | ||
6482aa7c DLR |
4635 | /* PCIe EEH recovery on powerpc platforms needs fundamental reset */ |
4636 | pdev->needs_freset = 1; | |
4637 | ||
b8ff05a9 DM |
4638 | if (is_offload(adapter)) |
4639 | attach_ulds(adapter); | |
4640 | ||
b8ff05a9 DM |
4641 | sriov: |
4642 | #ifdef CONFIG_PCI_IOV | |
4643 | if (func < ARRAY_SIZE(num_vf) && num_vf[func] > 0) | |
4644 | if (pci_enable_sriov(pdev, num_vf[func]) == 0) | |
4645 | dev_info(&pdev->dev, | |
4646 | "instantiated %u virtual functions\n", | |
4647 | num_vf[func]); | |
4648 | #endif | |
4649 | return 0; | |
4650 | ||
4651 | out_free_dev: | |
06546391 | 4652 | free_some_resources(adapter); |
b8ff05a9 DM |
4653 | out_unmap_bar: |
4654 | iounmap(adapter->regs); | |
4655 | out_free_adapter: | |
4656 | kfree(adapter); | |
4657 | out_disable_device: | |
4658 | pci_disable_pcie_error_reporting(pdev); | |
4659 | pci_disable_device(pdev); | |
4660 | out_release_regions: | |
4661 | pci_release_regions(pdev); | |
4662 | pci_set_drvdata(pdev, NULL); | |
4663 | return err; | |
4664 | } | |
4665 | ||
4666 | static void __devexit remove_one(struct pci_dev *pdev) | |
4667 | { | |
4668 | struct adapter *adapter = pci_get_drvdata(pdev); | |
4669 | ||
636f9d37 | 4670 | #ifdef CONFIG_PCI_IOV |
b8ff05a9 DM |
4671 | pci_disable_sriov(pdev); |
4672 | ||
636f9d37 VP |
4673 | #endif |
4674 | ||
b8ff05a9 DM |
4675 | if (adapter) { |
4676 | int i; | |
4677 | ||
4678 | if (is_offload(adapter)) | |
4679 | detach_ulds(adapter); | |
4680 | ||
4681 | for_each_port(adapter, i) | |
8f3a7676 | 4682 | if (adapter->port[i]->reg_state == NETREG_REGISTERED) |
b8ff05a9 DM |
4683 | unregister_netdev(adapter->port[i]); |
4684 | ||
4685 | if (adapter->debugfs_root) | |
4686 | debugfs_remove_recursive(adapter->debugfs_root); | |
4687 | ||
aaefae9b DM |
4688 | if (adapter->flags & FULL_INIT_DONE) |
4689 | cxgb_down(adapter); | |
b8ff05a9 | 4690 | |
06546391 | 4691 | free_some_resources(adapter); |
b8ff05a9 DM |
4692 | iounmap(adapter->regs); |
4693 | kfree(adapter); | |
4694 | pci_disable_pcie_error_reporting(pdev); | |
4695 | pci_disable_device(pdev); | |
4696 | pci_release_regions(pdev); | |
4697 | pci_set_drvdata(pdev, NULL); | |
a069ec91 | 4698 | } else |
b8ff05a9 DM |
4699 | pci_release_regions(pdev); |
4700 | } | |
4701 | ||
4702 | static struct pci_driver cxgb4_driver = { | |
4703 | .name = KBUILD_MODNAME, | |
4704 | .id_table = cxgb4_pci_tbl, | |
4705 | .probe = init_one, | |
4706 | .remove = __devexit_p(remove_one), | |
204dc3c0 | 4707 | .err_handler = &cxgb4_eeh, |
b8ff05a9 DM |
4708 | }; |
4709 | ||
4710 | static int __init cxgb4_init_module(void) | |
4711 | { | |
4712 | int ret; | |
4713 | ||
3069ee9b VP |
4714 | workq = create_singlethread_workqueue("cxgb4"); |
4715 | if (!workq) | |
4716 | return -ENOMEM; | |
4717 | ||
b8ff05a9 DM |
4718 | /* Debugfs support is optional, just warn if this fails */ |
4719 | cxgb4_debugfs_root = debugfs_create_dir(KBUILD_MODNAME, NULL); | |
4720 | if (!cxgb4_debugfs_root) | |
4721 | pr_warning("could not create debugfs entry, continuing\n"); | |
4722 | ||
4723 | ret = pci_register_driver(&cxgb4_driver); | |
4724 | if (ret < 0) | |
4725 | debugfs_remove(cxgb4_debugfs_root); | |
4726 | return ret; | |
4727 | } | |
4728 | ||
4729 | static void __exit cxgb4_cleanup_module(void) | |
4730 | { | |
4731 | pci_unregister_driver(&cxgb4_driver); | |
4732 | debugfs_remove(cxgb4_debugfs_root); /* NULL ok */ | |
3069ee9b VP |
4733 | flush_workqueue(workq); |
4734 | destroy_workqueue(workq); | |
b8ff05a9 DM |
4735 | } |
4736 | ||
4737 | module_init(cxgb4_init_module); | |
4738 | module_exit(cxgb4_cleanup_module); |