projects / linux-2.6-block.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
net: Always allocate at least 16 skb frags regardless of page size
[linux-2.6-block.git] / drivers / net / cxgb3 / cxgb3_main.c
CommitLineData
4d22de3e 1/*
a02d44a0 2 * Copyright (c) 2003-2008 Chelsio, Inc. All rights reserved.
4d22de3e 3 *
1d68e93d
DLR		 4 * This software is available to you under a choice of one of two
5 * licenses. You may choose to be licensed under the terms of the GNU
6 * General Public License (GPL) Version 2, available from the file
7 * COPYING in the main directory of this source tree, or the
8 * OpenIB.org BSD license below:
4d22de3e 9 *
1d68e93d
DLR		 10 * Redistribution and use in source and binary forms, with or
11 * without modification, are permitted provided that the following
12 * conditions are met:
13 *
14 * - Redistributions of source code must retain the above
15 * copyright notice, this list of conditions and the following
16 * disclaimer.
17 *
18 * - Redistributions in binary form must reproduce the above
19 * copyright notice, this list of conditions and the following
20 * disclaimer in the documentation and/or other materials
21 * provided with the distribution.
22 *
23 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
24 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
25 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
26 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
27 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
28 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
29 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
30 * SOFTWARE.
4d22de3e 31 */
4d22de3e
DLR		 32#include <linux/module.h>
33#include <linux/moduleparam.h>
34#include <linux/init.h>
35#include <linux/pci.h>
36#include <linux/dma-mapping.h>
37#include <linux/netdevice.h>
38#include <linux/etherdevice.h>
39#include <linux/if_vlan.h>
0f07c4ee 40#include <linux/mdio.h>
4d22de3e
DLR		 41#include <linux/sockios.h>
42#include <linux/workqueue.h>
43#include <linux/proc_fs.h>
44#include <linux/rtnetlink.h>
2e283962 45#include <linux/firmware.h>
d9da466a 46#include <linux/log2.h>
34336ec0 47#include <linux/stringify.h>
e998f245 48#include <linux/sched.h>
5a0e3ad6 49#include <linux/slab.h>
4d22de3e
DLR		 50#include <asm/uaccess.h>
51
52#include "common.h"
53#include "cxgb3_ioctl.h"
54#include "regs.h"
55#include "cxgb3_offload.h"
56#include "version.h"
57
58#include "cxgb3_ctl_defs.h"
59#include "t3_cpl.h"
60#include "firmware_exports.h"
61
62enum {
63 MAX_TXQ_ENTRIES = 16384,
64 MAX_CTRL_TXQ_ENTRIES = 1024,
65 MAX_RSPQ_ENTRIES = 16384,
66 MAX_RX_BUFFERS = 16384,
67 MAX_RX_JUMBO_BUFFERS = 16384,
68 MIN_TXQ_ENTRIES = 4,
69 MIN_CTRL_TXQ_ENTRIES = 4,
70 MIN_RSPQ_ENTRIES = 32,
71 MIN_FL_ENTRIES = 32
72};
73
74#define PORT_MASK ((1 << MAX_NPORTS) - 1)
75
76#define DFLT_MSG_ENABLE (NETIF_MSG_DRV | NETIF_MSG_PROBE | NETIF_MSG_LINK | \
77 NETIF_MSG_TIMER | NETIF_MSG_IFDOWN | NETIF_MSG_IFUP |\
78 NETIF_MSG_RX_ERR | NETIF_MSG_TX_ERR)
79
80#define EEPROM_MAGIC 0x38E2F10C
81
678771d6
DLR		 82#define CH_DEVICE(devid, idx) \
83 { PCI_VENDOR_ID_CHELSIO, devid, PCI_ANY_ID, PCI_ANY_ID, 0, 0, idx }
4d22de3e 84
a3aa1884 85static DEFINE_PCI_DEVICE_TABLE(cxgb3_pci_tbl) = {
678771d6
DLR		 86 CH_DEVICE(0x20, 0), /* PE9000 */
87 CH_DEVICE(0x21, 1), /* T302E */
88 CH_DEVICE(0x22, 2), /* T310E */
89 CH_DEVICE(0x23, 3), /* T320X */
90 CH_DEVICE(0x24, 1), /* T302X */
91 CH_DEVICE(0x25, 3), /* T320E */
92 CH_DEVICE(0x26, 2), /* T310X */
93 CH_DEVICE(0x30, 2), /* T3B10 */
94 CH_DEVICE(0x31, 3), /* T3B20 */
95 CH_DEVICE(0x32, 1), /* T3B02 */
ce03aadd 96 CH_DEVICE(0x35, 6), /* T3C20-derived T3C10 */
74451424
DLR		 97 CH_DEVICE(0x36, 3), /* S320E-CR */
98 CH_DEVICE(0x37, 7), /* N320E-G2 */
4d22de3e
DLR		 99 {0,}
100};
101
102MODULE_DESCRIPTION(DRV_DESC);
103MODULE_AUTHOR("Chelsio Communications");
1d68e93d 104MODULE_LICENSE("Dual BSD/GPL");
4d22de3e
DLR		 105MODULE_VERSION(DRV_VERSION);
106MODULE_DEVICE_TABLE(pci, cxgb3_pci_tbl);
107
108static int dflt_msg_enable = DFLT_MSG_ENABLE;
109
110module_param(dflt_msg_enable, int, 0644);
111MODULE_PARM_DESC(dflt_msg_enable, "Chelsio T3 default message enable bitmap");
112
113/*
114 * The driver uses the best interrupt scheme available on a platform in the
115 * order MSI-X, MSI, legacy pin interrupts. This parameter determines which
116 * of these schemes the driver may consider as follows:
117 *
118 * msi = 2: choose from among all three options
119 * msi = 1: only consider MSI and pin interrupts
120 * msi = 0: force pin interrupts
121 */
122static int msi = 2;
123
124module_param(msi, int, 0644);
125MODULE_PARM_DESC(msi, "whether to use MSI or MSI-X");
126
127/*
128 * The driver enables offload as a default.
129 * To disable it, use ofld_disable = 1.
130 */
131
132static int ofld_disable = 0;
133
134module_param(ofld_disable, int, 0644);
135MODULE_PARM_DESC(ofld_disable, "whether to enable offload at init time or not");
136
137/*
138 * We have work elements that we need to cancel when an interface is taken
139 * down. Normally the work elements would be executed by keventd but that
140 * can deadlock because of linkwatch. If our close method takes the rtnl
141 * lock and linkwatch is ahead of our work elements in keventd, linkwatch
142 * will block keventd as it needs the rtnl lock, and we'll deadlock waiting
143 * for our work to complete. Get our own work queue to solve this.
144 */
e998f245 145struct workqueue_struct *cxgb3_wq;
4d22de3e
DLR		 146
147/**
148 * link_report - show link status and link speed/duplex
149 * @p: the port whose settings are to be reported
150 *
151 * Shows the link status, speed, and duplex of a port.
152 */
153static void link_report(struct net_device *dev)
154{
155 if (!netif_carrier_ok(dev))
156 printk(KERN_INFO "%s: link down\n", dev->name);
157 else {
158 const char *s = "10Mbps";
159 const struct port_info *p = netdev_priv(dev);
160
161 switch (p->link_config.speed) {
162 case SPEED_10000:
163 s = "10Gbps";
164 break;
165 case SPEED_1000:
166 s = "1000Mbps";
167 break;
168 case SPEED_100:
169 s = "100Mbps";
170 break;
171 }
172
173 printk(KERN_INFO "%s: link up, %s, %s-duplex\n", dev->name, s,
174 p->link_config.duplex == DUPLEX_FULL ? "full" : "half");
175 }
176}
177
34701fde
DLR		 178static void enable_tx_fifo_drain(struct adapter *adapter,
179 struct port_info *pi)
180{
181 t3_set_reg_field(adapter, A_XGM_TXFIFO_CFG + pi->mac.offset, 0,
182 F_ENDROPPKT);
183 t3_write_reg(adapter, A_XGM_RX_CTRL + pi->mac.offset, 0);
184 t3_write_reg(adapter, A_XGM_TX_CTRL + pi->mac.offset, F_TXEN);
185 t3_write_reg(adapter, A_XGM_RX_CTRL + pi->mac.offset, F_RXEN);
186}
187
188static void disable_tx_fifo_drain(struct adapter *adapter,
189 struct port_info *pi)
190{
191 t3_set_reg_field(adapter, A_XGM_TXFIFO_CFG + pi->mac.offset,
192 F_ENDROPPKT, 0);
193}
194
bf792094
DLR		 195void t3_os_link_fault(struct adapter *adap, int port_id, int state)
196{
197 struct net_device *dev = adap->port[port_id];
198 struct port_info *pi = netdev_priv(dev);
199
200 if (state == netif_carrier_ok(dev))
201 return;
202
203 if (state) {
204 struct cmac *mac = &pi->mac;
205
206 netif_carrier_on(dev);
207
34701fde
DLR		 208 disable_tx_fifo_drain(adap, pi);
209
bf792094
DLR		 210 /* Clear local faults */
211 t3_xgm_intr_disable(adap, pi->port_id);
212 t3_read_reg(adap, A_XGM_INT_STATUS +
213 pi->mac.offset);
214 t3_write_reg(adap,
215 A_XGM_INT_CAUSE + pi->mac.offset,
216 F_XGM_INT);
217
218 t3_set_reg_field(adap,
219 A_XGM_INT_ENABLE +
220 pi->mac.offset,
221 F_XGM_INT, F_XGM_INT);
222 t3_xgm_intr_enable(adap, pi->port_id);
223
224 t3_mac_enable(mac, MAC_DIRECTION_TX);
34701fde 225 } else {
bf792094
DLR		 226 netif_carrier_off(dev);
227
34701fde
DLR		 228 /* Flush TX FIFO */
229 enable_tx_fifo_drain(adap, pi);
230 }
bf792094
DLR		 231 link_report(dev);
232}
233
4d22de3e
DLR		 234/**
235 * t3_os_link_changed - handle link status changes
236 * @adapter: the adapter associated with the link change
237 * @port_id: the port index whose limk status has changed
238 * @link_stat: the new status of the link
239 * @speed: the new speed setting
240 * @duplex: the new duplex setting
241 * @pause: the new flow-control setting
242 *
243 * This is the OS-dependent handler for link status changes. The OS
244 * neutral handler takes care of most of the processing for these events,
245 * then calls this handler for any OS-specific processing.
246 */
247void t3_os_link_changed(struct adapter *adapter, int port_id, int link_stat,
248 int speed, int duplex, int pause)
249{
250 struct net_device *dev = adapter->port[port_id];
6d6dabac
DLR		 251 struct port_info *pi = netdev_priv(dev);
252 struct cmac *mac = &pi->mac;
4d22de3e
DLR		 253
254 /* Skip changes from disabled ports. */
255 if (!netif_running(dev))
256 return;
257
258 if (link_stat != netif_carrier_ok(dev)) {
6d6dabac 259 if (link_stat) {
34701fde
DLR		 260 disable_tx_fifo_drain(adapter, pi);
261
59cf8107 262 t3_mac_enable(mac, MAC_DIRECTION_RX);
bf792094
DLR		 263
264 /* Clear local faults */
265 t3_xgm_intr_disable(adapter, pi->port_id);
266 t3_read_reg(adapter, A_XGM_INT_STATUS +
267 pi->mac.offset);
268 t3_write_reg(adapter,
269 A_XGM_INT_CAUSE + pi->mac.offset,
270 F_XGM_INT);
271
272 t3_set_reg_field(adapter,
273 A_XGM_INT_ENABLE + pi->mac.offset,
274 F_XGM_INT, F_XGM_INT);
275 t3_xgm_intr_enable(adapter, pi->port_id);
276
4d22de3e 277 netif_carrier_on(dev);
6d6dabac 278 } else {
4d22de3e 279 netif_carrier_off(dev);
bf792094
DLR		 280
281 t3_xgm_intr_disable(adapter, pi->port_id);
282 t3_read_reg(adapter, A_XGM_INT_STATUS + pi->mac.offset);
283 t3_set_reg_field(adapter,
284 A_XGM_INT_ENABLE + pi->mac.offset,
285 F_XGM_INT, 0);
286
287 if (is_10G(adapter))
288 pi->phy.ops->power_down(&pi->phy, 1);
289
290 t3_read_reg(adapter, A_XGM_INT_STATUS + pi->mac.offset);
59cf8107
DLR		 291 t3_mac_disable(mac, MAC_DIRECTION_RX);
292 t3_link_start(&pi->phy, mac, &pi->link_config);
34701fde
DLR		 293
294 /* Flush TX FIFO */
295 enable_tx_fifo_drain(adapter, pi);
6d6dabac
DLR		 296 }
297
4d22de3e
DLR		 298 link_report(dev);
299 }
300}
301
1e882025
DLR		 302/**
303 * t3_os_phymod_changed - handle PHY module changes
304 * @phy: the PHY reporting the module change
305 * @mod_type: new module type
306 *
307 * This is the OS-dependent handler for PHY module changes. It is
308 * invoked when a PHY module is removed or inserted for any OS-specific
309 * processing.
310 */
311void t3_os_phymod_changed(struct adapter *adap, int port_id)
312{
313 static const char *mod_str[] = {
314 NULL, "SR", "LR", "LRM", "TWINAX", "TWINAX", "unknown"
315 };
316
317 const struct net_device *dev = adap->port[port_id];
318 const struct port_info *pi = netdev_priv(dev);
319
320 if (pi->phy.modtype == phy_modtype_none)
321 printk(KERN_INFO "%s: PHY module unplugged\n", dev->name);
322 else
323 printk(KERN_INFO "%s: %s PHY module inserted\n", dev->name,
324 mod_str[pi->phy.modtype]);
325}
326
4d22de3e
DLR		 327static void cxgb_set_rxmode(struct net_device *dev)
328{
4d22de3e
DLR		 329 struct port_info *pi = netdev_priv(dev);
330
0988d269 331 t3_mac_set_rx_mode(&pi->mac, dev);
4d22de3e
DLR		 332}
333
334/**
335 * link_start - enable a port
336 * @dev: the device to enable
337 *
338 * Performs the MAC and PHY actions needed to enable a port.
339 */
340static void link_start(struct net_device *dev)
341{
4d22de3e
DLR		 342 struct port_info *pi = netdev_priv(dev);
343 struct cmac *mac = &pi->mac;
344
4d22de3e 345 t3_mac_reset(mac);
f14d42f3 346 t3_mac_set_num_ucast(mac, MAX_MAC_IDX);
4d22de3e 347 t3_mac_set_mtu(mac, dev->mtu);
f14d42f3
KX		 348 t3_mac_set_address(mac, LAN_MAC_IDX, dev->dev_addr);
349 t3_mac_set_address(mac, SAN_MAC_IDX, pi->iscsic.mac_addr);
0988d269 350 t3_mac_set_rx_mode(mac, dev);
4d22de3e
DLR		 351 t3_link_start(&pi->phy, mac, &pi->link_config);
352 t3_mac_enable(mac, MAC_DIRECTION_RX | MAC_DIRECTION_TX);
353}
354
355static inline void cxgb_disable_msi(struct adapter *adapter)
356{
357 if (adapter->flags & USING_MSIX) {
358 pci_disable_msix(adapter->pdev);
359 adapter->flags &= ~USING_MSIX;
360 } else if (adapter->flags & USING_MSI) {
361 pci_disable_msi(adapter->pdev);
362 adapter->flags &= ~USING_MSI;
363 }
364}
365
366/*
367 * Interrupt handler for asynchronous events used with MSI-X.
368 */
369static irqreturn_t t3_async_intr_handler(int irq, void *cookie)
370{
371 t3_slow_intr_handler(cookie);
372 return IRQ_HANDLED;
373}
374
375/*
376 * Name the MSI-X interrupts.
377 */
378static void name_msix_vecs(struct adapter *adap)
379{
380 int i, j, msi_idx = 1, n = sizeof(adap->msix_info[0].desc) - 1;
381
382 snprintf(adap->msix_info[0].desc, n, "%s", adap->name);
383 adap->msix_info[0].desc[n] = 0;
384
385 for_each_port(adap, j) {
386 struct net_device *d = adap->port[j];
387 const struct port_info *pi = netdev_priv(d);
388
389 for (i = 0; i < pi->nqsets; i++, msi_idx++) {
390 snprintf(adap->msix_info[msi_idx].desc, n,
8c263761 391 "%s-%d", d->name, pi->first_qset + i);
4d22de3e
DLR		 392 adap->msix_info[msi_idx].desc[n] = 0;
393 }
8c263761 394 }
4d22de3e
DLR		 395}
396
397static int request_msix_data_irqs(struct adapter *adap)
398{
399 int i, j, err, qidx = 0;
400
401 for_each_port(adap, i) {
402 int nqsets = adap2pinfo(adap, i)->nqsets;
403
404 for (j = 0; j < nqsets; ++j) {
405 err = request_irq(adap->msix_info[qidx + 1].vec,
406 t3_intr_handler(adap,
407 adap->sge.qs[qidx].
408 rspq.polling), 0,
409 adap->msix_info[qidx + 1].desc,
410 &adap->sge.qs[qidx]);
411 if (err) {
412 while (--qidx >= 0)
413 free_irq(adap->msix_info[qidx + 1].vec,
414 &adap->sge.qs[qidx]);
415 return err;
416 }
417 qidx++;
418 }
419 }
420 return 0;
421}
422
8c263761
DLR		 423static void free_irq_resources(struct adapter *adapter)
424{
425 if (adapter->flags & USING_MSIX) {
426 int i, n = 0;
427
428 free_irq(adapter->msix_info[0].vec, adapter);
429 for_each_port(adapter, i)
5cda9364 430 n += adap2pinfo(adapter, i)->nqsets;
8c263761
DLR		 431
432 for (i = 0; i < n; ++i)
433 free_irq(adapter->msix_info[i + 1].vec,
434 &adapter->sge.qs[i]);
435 } else
436 free_irq(adapter->pdev->irq, adapter);
437}
438
b881955b
DLR		 439static int await_mgmt_replies(struct adapter *adap, unsigned long init_cnt,
440 unsigned long n)
441{
e95ef5d3 442 int attempts = 10;
b881955b
DLR		 443
444 while (adap->sge.qs[0].rspq.offload_pkts < init_cnt + n) {
445 if (!--attempts)
446 return -ETIMEDOUT;
447 msleep(10);
448 }
449 return 0;
450}
451
452static int init_tp_parity(struct adapter *adap)
453{
454 int i;
455 struct sk_buff *skb;
456 struct cpl_set_tcb_field *greq;
457 unsigned long cnt = adap->sge.qs[0].rspq.offload_pkts;
458
459 t3_tp_set_offload_mode(adap, 1);
460
461 for (i = 0; i < 16; i++) {
462 struct cpl_smt_write_req *req;
463
74b793e1
DLR		 464 skb = alloc_skb(sizeof(*req), GFP_KERNEL);
465 if (!skb)
466 skb = adap->nofail_skb;
467 if (!skb)
468 goto alloc_skb_fail;
469
b881955b
DLR		 470 req = (struct cpl_smt_write_req *)__skb_put(skb, sizeof(*req));
471 memset(req, 0, sizeof(*req));
472 req->wr.wr_hi = htonl(V_WR_OP(FW_WROPCODE_FORWARD));
473 OPCODE_TID(req) = htonl(MK_OPCODE_TID(CPL_SMT_WRITE_REQ, i));
dce7d1d0 474 req->mtu_idx = NMTUS - 1;
b881955b
DLR		 475 req->iff = i;
476 t3_mgmt_tx(adap, skb);
74b793e1
DLR		 477 if (skb == adap->nofail_skb) {
478 await_mgmt_replies(adap, cnt, i + 1);
479 adap->nofail_skb = alloc_skb(sizeof(*greq), GFP_KERNEL);
480 if (!adap->nofail_skb)
481 goto alloc_skb_fail;
482 }
b881955b
DLR		 483 }
484
485 for (i = 0; i < 2048; i++) {
486 struct cpl_l2t_write_req *req;
487
74b793e1
DLR		 488 skb = alloc_skb(sizeof(*req), GFP_KERNEL);
489 if (!skb)
490 skb = adap->nofail_skb;
491 if (!skb)
492 goto alloc_skb_fail;
493
b881955b
DLR		 494 req = (struct cpl_l2t_write_req *)__skb_put(skb, sizeof(*req));
495 memset(req, 0, sizeof(*req));
496 req->wr.wr_hi = htonl(V_WR_OP(FW_WROPCODE_FORWARD));
497 OPCODE_TID(req) = htonl(MK_OPCODE_TID(CPL_L2T_WRITE_REQ, i));
498 req->params = htonl(V_L2T_W_IDX(i));
499 t3_mgmt_tx(adap, skb);
74b793e1
DLR		 500 if (skb == adap->nofail_skb) {
501 await_mgmt_replies(adap, cnt, 16 + i + 1);
502 adap->nofail_skb = alloc_skb(sizeof(*greq), GFP_KERNEL);
503 if (!adap->nofail_skb)
504 goto alloc_skb_fail;
505 }
b881955b
DLR		 506 }
507
508 for (i = 0; i < 2048; i++) {
509 struct cpl_rte_write_req *req;
510
74b793e1
DLR		 511 skb = alloc_skb(sizeof(*req), GFP_KERNEL);
512 if (!skb)
513 skb = adap->nofail_skb;
514 if (!skb)
515 goto alloc_skb_fail;
516
b881955b
DLR		 517 req = (struct cpl_rte_write_req *)__skb_put(skb, sizeof(*req));
518 memset(req, 0, sizeof(*req));
519 req->wr.wr_hi = htonl(V_WR_OP(FW_WROPCODE_FORWARD));
520 OPCODE_TID(req) = htonl(MK_OPCODE_TID(CPL_RTE_WRITE_REQ, i));
521 req->l2t_idx = htonl(V_L2T_W_IDX(i));
522 t3_mgmt_tx(adap, skb);
74b793e1
DLR		 523 if (skb == adap->nofail_skb) {
524 await_mgmt_replies(adap, cnt, 16 + 2048 + i + 1);
525 adap->nofail_skb = alloc_skb(sizeof(*greq), GFP_KERNEL);
526 if (!adap->nofail_skb)
527 goto alloc_skb_fail;
528 }
b881955b
DLR		 529 }
530
74b793e1
DLR		 531 skb = alloc_skb(sizeof(*greq), GFP_KERNEL);
532 if (!skb)
533 skb = adap->nofail_skb;
534 if (!skb)
535 goto alloc_skb_fail;
536
b881955b
DLR		 537 greq = (struct cpl_set_tcb_field *)__skb_put(skb, sizeof(*greq));
538 memset(greq, 0, sizeof(*greq));
539 greq->wr.wr_hi = htonl(V_WR_OP(FW_WROPCODE_FORWARD));
540 OPCODE_TID(greq) = htonl(MK_OPCODE_TID(CPL_SET_TCB_FIELD, 0));
541 greq->mask = cpu_to_be64(1);
542 t3_mgmt_tx(adap, skb);
543
544 i = await_mgmt_replies(adap, cnt, 16 + 2048 + 2048 + 1);
74b793e1
DLR		 545 if (skb == adap->nofail_skb) {
546 i = await_mgmt_replies(adap, cnt, 16 + 2048 + 2048 + 1);
547 adap->nofail_skb = alloc_skb(sizeof(*greq), GFP_KERNEL);
548 }
549
b881955b
DLR		 550 t3_tp_set_offload_mode(adap, 0);
551 return i;
74b793e1
DLR		 552
553alloc_skb_fail:
554 t3_tp_set_offload_mode(adap, 0);
555 return -ENOMEM;
b881955b
DLR		 556}
557
4d22de3e
DLR		 558/**
559 * setup_rss - configure RSS
560 * @adap: the adapter
561 *
562 * Sets up RSS to distribute packets to multiple receive queues. We
563 * configure the RSS CPU lookup table to distribute to the number of HW
564 * receive queues, and the response queue lookup table to narrow that
565 * down to the response queues actually configured for each port.
566 * We always configure the RSS mapping for two ports since the mapping
567 * table has plenty of entries.
568 */
569static void setup_rss(struct adapter *adap)
570{
571 int i;
572 unsigned int nq0 = adap2pinfo(adap, 0)->nqsets;
573 unsigned int nq1 = adap->port[1] ? adap2pinfo(adap, 1)->nqsets : 1;
574 u8 cpus[SGE_QSETS + 1];
575 u16 rspq_map[RSS_TABLE_SIZE];
576
577 for (i = 0; i < SGE_QSETS; ++i)
578 cpus[i] = i;
579 cpus[SGE_QSETS] = 0xff; /* terminator */
580
581 for (i = 0; i < RSS_TABLE_SIZE / 2; ++i) {
582 rspq_map[i] = i % nq0;
583 rspq_map[i + RSS_TABLE_SIZE / 2] = (i % nq1) + nq0;
584 }
585
586 t3_config_rss(adap, F_RQFEEDBACKENABLE | F_TNLLKPEN | F_TNLMAPEN |
587 F_TNLPRTEN | F_TNL2TUPEN | F_TNL4TUPEN |
a2604be5 588 V_RRCPLCPUSIZE(6) | F_HASHTOEPLITZ, cpus, rspq_map);
4d22de3e
DLR		 589}
590
e998f245
SW		 591static void ring_dbs(struct adapter *adap)
592{
593 int i, j;
594
595 for (i = 0; i < SGE_QSETS; i++) {
596 struct sge_qset *qs = &adap->sge.qs[i];
597
598 if (qs->adap)
599 for (j = 0; j < SGE_TXQ_PER_SET; j++)
600 t3_write_reg(adap, A_SG_KDOORBELL, F_SELEGRCNTX | V_EGRCNTX(qs->txq[j].cntxt_id));
601 }
602}
603
bea3348e 604static void init_napi(struct adapter *adap)
4d22de3e 605{
bea3348e 606 int i;
4d22de3e 607
bea3348e
SH		 608 for (i = 0; i < SGE_QSETS; i++) {
609 struct sge_qset *qs = &adap->sge.qs[i];
4d22de3e 610
bea3348e
SH		 611 if (qs->adap)
612 netif_napi_add(qs->netdev, &qs->napi, qs->napi.poll,
613 64);
4d22de3e 614 }
48c4b6db
DLR		 615
616 /*
617 * netif_napi_add() can be called only once per napi_struct because it
618 * adds each new napi_struct to a list. Be careful not to call it a
619 * second time, e.g., during EEH recovery, by making a note of it.
620 */
621 adap->flags |= NAPI_INIT;
4d22de3e
DLR		 622}
623
624/*
625 * Wait until all NAPI handlers are descheduled. This includes the handlers of
626 * both netdevices representing interfaces and the dummy ones for the extra
627 * queues.
628 */
629static void quiesce_rx(struct adapter *adap)
630{
631 int i;
4d22de3e 632
bea3348e
SH		 633 for (i = 0; i < SGE_QSETS; i++)
634 if (adap->sge.qs[i].adap)
635 napi_disable(&adap->sge.qs[i].napi);
636}
4d22de3e 637
bea3348e
SH		 638static void enable_all_napi(struct adapter *adap)
639{
640 int i;
641 for (i = 0; i < SGE_QSETS; i++)
642 if (adap->sge.qs[i].adap)
643 napi_enable(&adap->sge.qs[i].napi);
4d22de3e
DLR		 644}
645
04ecb072
DLR		 646/**
647 * set_qset_lro - Turn a queue set's LRO capability on and off
648 * @dev: the device the qset is attached to
649 * @qset_idx: the queue set index
650 * @val: the LRO switch
651 *
652 * Sets LRO on or off for a particular queue set.
653 * the device's features flag is updated to reflect the LRO
654 * capability when all queues belonging to the device are
655 * in the same state.
656 */
657static void set_qset_lro(struct net_device *dev, int qset_idx, int val)
658{
659 struct port_info *pi = netdev_priv(dev);
660 struct adapter *adapter = pi->adapter;
04ecb072
DLR		 661
662 adapter->params.sge.qset[qset_idx].lro = !!val;
663 adapter->sge.qs[qset_idx].lro_enabled = !!val;
04ecb072
DLR		 664}
665
4d22de3e
DLR		 666/**
667 * setup_sge_qsets - configure SGE Tx/Rx/response queues
668 * @adap: the adapter
669 *
670 * Determines how many sets of SGE queues to use and initializes them.
671 * We support multiple queue sets per port if we have MSI-X, otherwise
672 * just one queue set per port.
673 */
674static int setup_sge_qsets(struct adapter *adap)
675{
bea3348e 676 int i, j, err, irq_idx = 0, qset_idx = 0;
8ac3ba68 677 unsigned int ntxq = SGE_TXQ_PER_SET;
4d22de3e
DLR		 678
679 if (adap->params.rev > 0 && !(adap->flags & USING_MSI))
680 irq_idx = -1;
681
682 for_each_port(adap, i) {
683 struct net_device *dev = adap->port[i];
bea3348e 684 struct port_info *pi = netdev_priv(dev);
4d22de3e 685
bea3348e 686 pi->qs = &adap->sge.qs[pi->first_qset];
e594e96e 687 for (j = 0; j < pi->nqsets; ++j, ++qset_idx) {
47fd23fe 688 set_qset_lro(dev, qset_idx, pi->rx_offload & T3_LRO);
4d22de3e
DLR		 689 err = t3_sge_alloc_qset(adap, qset_idx, 1,
690 (adap->flags & USING_MSIX) ? qset_idx + 1 :
691 irq_idx,
82ad3329
DLR		 692 &adap->params.sge.qset[qset_idx], ntxq, dev,
693 netdev_get_tx_queue(dev, j));
4d22de3e
DLR		 694 if (err) {
695 t3_free_sge_resources(adap);
696 return err;
697 }
698 }
699 }
700
701 return 0;
702}
703
3e5192ee 704static ssize_t attr_show(struct device *d, char *buf,
896392ef 705 ssize_t(*format) (struct net_device *, char *))
4d22de3e
DLR		 706{
707 ssize_t len;
4d22de3e
DLR		 708
709 /* Synchronize with ioctls that may shut down the device */
710 rtnl_lock();
896392ef 711 len = (*format) (to_net_dev(d), buf);
4d22de3e
DLR		 712 rtnl_unlock();
713 return len;
714}
715
3e5192ee 716static ssize_t attr_store(struct device *d,
0ee8d33c 717 const char *buf, size_t len,
896392ef 718 ssize_t(*set) (struct net_device *, unsigned int),
4d22de3e
DLR		 719 unsigned int min_val, unsigned int max_val)
720{
721 char *endp;
722 ssize_t ret;
723 unsigned int val;
4d22de3e
DLR		 724
725 if (!capable(CAP_NET_ADMIN))
726 return -EPERM;
727
728 val = simple_strtoul(buf, &endp, 0);
729 if (endp == buf || val < min_val || val > max_val)
730 return -EINVAL;
731
732 rtnl_lock();
896392ef 733 ret = (*set) (to_net_dev(d), val);
4d22de3e
DLR		 734 if (!ret)
735 ret = len;
736 rtnl_unlock();
737 return ret;
738}
739
740#define CXGB3_SHOW(name, val_expr) \
896392ef 741static ssize_t format_##name(struct net_device *dev, char *buf) \
4d22de3e 742{ \
5fbf816f
DLR		 743 struct port_info *pi = netdev_priv(dev); \
744 struct adapter *adap = pi->adapter; \
4d22de3e
DLR		 745 return sprintf(buf, "%u\n", val_expr); \
746} \
0ee8d33c
DLR		 747static ssize_t show_##name(struct device *d, struct device_attribute *attr, \
748 char *buf) \
4d22de3e 749{ \
3e5192ee 750 return attr_show(d, buf, format_##name); \
4d22de3e
DLR		 751}
752
896392ef 753static ssize_t set_nfilters(struct net_device *dev, unsigned int val)
4d22de3e 754{
5fbf816f
DLR		 755 struct port_info *pi = netdev_priv(dev);
756 struct adapter *adap = pi->adapter;
9f238486 757 int min_tids = is_offload(adap) ? MC5_MIN_TIDS : 0;
896392ef 758
4d22de3e
DLR		 759 if (adap->flags & FULL_INIT_DONE)
760 return -EBUSY;
761 if (val && adap->params.rev == 0)
762 return -EINVAL;
9f238486
DLR		 763 if (val > t3_mc5_size(&adap->mc5) - adap->params.mc5.nservers -
764 min_tids)
4d22de3e
DLR		 765 return -EINVAL;
766 adap->params.mc5.nfilters = val;
767 return 0;
768}
769
0ee8d33c
DLR		 770static ssize_t store_nfilters(struct device *d, struct device_attribute *attr,
771 const char *buf, size_t len)
4d22de3e 772{
3e5192ee 773 return attr_store(d, buf, len, set_nfilters, 0, ~0);
4d22de3e
DLR		 774}
775
896392ef 776static ssize_t set_nservers(struct net_device *dev, unsigned int val)
4d22de3e 777{
5fbf816f
DLR		 778 struct port_info *pi = netdev_priv(dev);
779 struct adapter *adap = pi->adapter;
896392ef 780
4d22de3e
DLR		 781 if (adap->flags & FULL_INIT_DONE)
782 return -EBUSY;
9f238486
DLR		 783 if (val > t3_mc5_size(&adap->mc5) - adap->params.mc5.nfilters -
784 MC5_MIN_TIDS)
4d22de3e
DLR		 785 return -EINVAL;
786 adap->params.mc5.nservers = val;
787 return 0;
788}
789
0ee8d33c
DLR		 790static ssize_t store_nservers(struct device *d, struct device_attribute *attr,
791 const char *buf, size_t len)
4d22de3e 792{
3e5192ee 793 return attr_store(d, buf, len, set_nservers, 0, ~0);
4d22de3e
DLR		 794}
795
796#define CXGB3_ATTR_R(name, val_expr) \
797CXGB3_SHOW(name, val_expr) \
0ee8d33c 798static DEVICE_ATTR(name, S_IRUGO, show_##name, NULL)
4d22de3e
DLR		 799
800#define CXGB3_ATTR_RW(name, val_expr, store_method) \
801CXGB3_SHOW(name, val_expr) \
0ee8d33c 802static DEVICE_ATTR(name, S_IRUGO | S_IWUSR, show_##name, store_method)
4d22de3e
DLR		 803
804CXGB3_ATTR_R(cam_size, t3_mc5_size(&adap->mc5));
805CXGB3_ATTR_RW(nfilters, adap->params.mc5.nfilters, store_nfilters);
806CXGB3_ATTR_RW(nservers, adap->params.mc5.nservers, store_nservers);
807
808static struct attribute *cxgb3_attrs[] = {
0ee8d33c
DLR		 809 &dev_attr_cam_size.attr,
810 &dev_attr_nfilters.attr,
811 &dev_attr_nservers.attr,
4d22de3e
DLR		 812 NULL
813};
814
815static struct attribute_group cxgb3_attr_group = {.attrs = cxgb3_attrs };
816
3e5192ee 817static ssize_t tm_attr_show(struct device *d,
0ee8d33c 818 char *buf, int sched)
4d22de3e 819{
5fbf816f
DLR		 820 struct port_info *pi = netdev_priv(to_net_dev(d));
821 struct adapter *adap = pi->adapter;
4d22de3e 822 unsigned int v, addr, bpt, cpt;
5fbf816f 823 ssize_t len;
4d22de3e
DLR		 824
825 addr = A_TP_TX_MOD_Q1_Q0_RATE_LIMIT - sched / 2;
826 rtnl_lock();
827 t3_write_reg(adap, A_TP_TM_PIO_ADDR, addr);
828 v = t3_read_reg(adap, A_TP_TM_PIO_DATA);
829 if (sched & 1)
830 v >>= 16;
831 bpt = (v >> 8) & 0xff;
832 cpt = v & 0xff;
833 if (!cpt)
834 len = sprintf(buf, "disabled\n");
835 else {
836 v = (adap->params.vpd.cclk * 1000) / cpt;
837 len = sprintf(buf, "%u Kbps\n", (v * bpt) / 125);
838 }
839 rtnl_unlock();
840 return len;
841}
842
3e5192ee 843static ssize_t tm_attr_store(struct device *d,
0ee8d33c 844 const char *buf, size_t len, int sched)
4d22de3e 845{
5fbf816f
DLR		 846 struct port_info *pi = netdev_priv(to_net_dev(d));
847 struct adapter *adap = pi->adapter;
848 unsigned int val;
4d22de3e
DLR		 849 char *endp;
850 ssize_t ret;
4d22de3e
DLR		 851
852 if (!capable(CAP_NET_ADMIN))
853 return -EPERM;
854
855 val = simple_strtoul(buf, &endp, 0);
856 if (endp == buf || val > 10000000)
857 return -EINVAL;
858
859 rtnl_lock();
860 ret = t3_config_sched(adap, val, sched);
861 if (!ret)
862 ret = len;
863 rtnl_unlock();
864 return ret;
865}
866
867#define TM_ATTR(name, sched) \
0ee8d33c
DLR		 868static ssize_t show_##name(struct device *d, struct device_attribute *attr, \
869 char *buf) \
4d22de3e 870{ \
3e5192ee 871 return tm_attr_show(d, buf, sched); \
4d22de3e 872} \
0ee8d33c
DLR		 873static ssize_t store_##name(struct device *d, struct device_attribute *attr, \
874 const char *buf, size_t len) \
4d22de3e 875{ \
3e5192ee 876 return tm_attr_store(d, buf, len, sched); \
4d22de3e 877} \
0ee8d33c 878static DEVICE_ATTR(name, S_IRUGO | S_IWUSR, show_##name, store_##name)
4d22de3e
DLR		 879
880TM_ATTR(sched0, 0);
881TM_ATTR(sched1, 1);
882TM_ATTR(sched2, 2);
883TM_ATTR(sched3, 3);
884TM_ATTR(sched4, 4);
885TM_ATTR(sched5, 5);
886TM_ATTR(sched6, 6);
887TM_ATTR(sched7, 7);
888
889static struct attribute *offload_attrs[] = {
0ee8d33c
DLR		 890 &dev_attr_sched0.attr,
891 &dev_attr_sched1.attr,
892 &dev_attr_sched2.attr,
893 &dev_attr_sched3.attr,
894 &dev_attr_sched4.attr,
895 &dev_attr_sched5.attr,
896 &dev_attr_sched6.attr,
897 &dev_attr_sched7.attr,
4d22de3e
DLR		 898 NULL
899};
900
901static struct attribute_group offload_attr_group = {.attrs = offload_attrs };
902
903/*
904 * Sends an sk_buff to an offload queue driver
905 * after dealing with any active network taps.
906 */
907static inline int offload_tx(struct t3cdev *tdev, struct sk_buff *skb)
908{
909 int ret;
910
911 local_bh_disable();
912 ret = t3_offload_tx(tdev, skb);
913 local_bh_enable();
914 return ret;
915}
916
917static int write_smt_entry(struct adapter *adapter, int idx)
918{
919 struct cpl_smt_write_req *req;
f14d42f3 920 struct port_info *pi = netdev_priv(adapter->port[idx]);
4d22de3e
DLR		 921 struct sk_buff *skb = alloc_skb(sizeof(*req), GFP_KERNEL);
922
923 if (!skb)
924 return -ENOMEM;
925
926 req = (struct cpl_smt_write_req *)__skb_put(skb, sizeof(*req));
927 req->wr.wr_hi = htonl(V_WR_OP(FW_WROPCODE_FORWARD));
928 OPCODE_TID(req) = htonl(MK_OPCODE_TID(CPL_SMT_WRITE_REQ, idx));
929 req->mtu_idx = NMTUS - 1; /* should be 0 but there's a T3 bug */
930 req->iff = idx;
4d22de3e 931 memcpy(req->src_mac0, adapter->port[idx]->dev_addr, ETH_ALEN);
f14d42f3 932 memcpy(req->src_mac1, pi->iscsic.mac_addr, ETH_ALEN);
4d22de3e
DLR		 933 skb->priority = 1;
934 offload_tx(&adapter->tdev, skb);
935 return 0;
936}
937
938static int init_smt(struct adapter *adapter)
939{
940 int i;
941
942 for_each_port(adapter, i)
943 write_smt_entry(adapter, i);
944 return 0;
945}
946
947static void init_port_mtus(struct adapter *adapter)
948{
949 unsigned int mtus = adapter->port[0]->mtu;
950
951 if (adapter->port[1])
952 mtus |= adapter->port[1]->mtu << 16;
953 t3_write_reg(adapter, A_TP_MTU_PORT_TABLE, mtus);
954}
955
8c263761 956static int send_pktsched_cmd(struct adapter *adap, int sched, int qidx, int lo,
14ab9892
DLR		 957 int hi, int port)
958{
959 struct sk_buff *skb;
960 struct mngt_pktsched_wr *req;
8c263761 961 int ret;
14ab9892 962
74b793e1
DLR		 963 skb = alloc_skb(sizeof(*req), GFP_KERNEL);
964 if (!skb)
965 skb = adap->nofail_skb;
966 if (!skb)
967 return -ENOMEM;
968
14ab9892
DLR		 969 req = (struct mngt_pktsched_wr *)skb_put(skb, sizeof(*req));
970 req->wr_hi = htonl(V_WR_OP(FW_WROPCODE_MNGT));
971 req->mngt_opcode = FW_MNGTOPCODE_PKTSCHED_SET;
972 req->sched = sched;
973 req->idx = qidx;
974 req->min = lo;
975 req->max = hi;
976 req->binding = port;
8c263761 977 ret = t3_mgmt_tx(adap, skb);
74b793e1
DLR		 978 if (skb == adap->nofail_skb) {
979 adap->nofail_skb = alloc_skb(sizeof(struct cpl_set_tcb_field),
980 GFP_KERNEL);
981 if (!adap->nofail_skb)
982 ret = -ENOMEM;
983 }
8c263761
DLR		 984
985 return ret;
14ab9892
DLR		 986}
987
8c263761 988static int bind_qsets(struct adapter *adap)
14ab9892 989{
8c263761 990 int i, j, err = 0;
14ab9892
DLR		 991
992 for_each_port(adap, i) {
993 const struct port_info *pi = adap2pinfo(adap, i);
994
8c263761
DLR		 995 for (j = 0; j < pi->nqsets; ++j) {
996 int ret = send_pktsched_cmd(adap, 1,
997 pi->first_qset + j, -1,
998 -1, i);
999 if (ret)
1000 err = ret;
1001 }
14ab9892 1002 }
8c263761
DLR		 1003
1004 return err;
14ab9892
DLR		 1005}
1006
34336ec0
BH		 1007#define FW_VERSION __stringify(FW_VERSION_MAJOR) "." \
1008 __stringify(FW_VERSION_MINOR) "." __stringify(FW_VERSION_MICRO)
1009#define FW_FNAME "cxgb3/t3fw-" FW_VERSION ".bin"
1010#define TPSRAM_VERSION __stringify(TP_VERSION_MAJOR) "." \
1011 __stringify(TP_VERSION_MINOR) "." __stringify(TP_VERSION_MICRO)
1012#define TPSRAM_NAME "cxgb3/t3%c_psram-" TPSRAM_VERSION ".bin"
2e8c07c3
DLR		 1013#define AEL2005_OPT_EDC_NAME "cxgb3/ael2005_opt_edc.bin"
1014#define AEL2005_TWX_EDC_NAME "cxgb3/ael2005_twx_edc.bin"
9450526a 1015#define AEL2020_TWX_EDC_NAME "cxgb3/ael2020_twx_edc.bin"
34336ec0
BH		 1016MODULE_FIRMWARE(FW_FNAME);
1017MODULE_FIRMWARE("cxgb3/t3b_psram-" TPSRAM_VERSION ".bin");
1018MODULE_FIRMWARE("cxgb3/t3c_psram-" TPSRAM_VERSION ".bin");
1019MODULE_FIRMWARE(AEL2005_OPT_EDC_NAME);
1020MODULE_FIRMWARE(AEL2005_TWX_EDC_NAME);
1021MODULE_FIRMWARE(AEL2020_TWX_EDC_NAME);
2e8c07c3
DLR		 1022
1023static inline const char *get_edc_fw_name(int edc_idx)
1024{
1025 const char *fw_name = NULL;
1026
1027 switch (edc_idx) {
1028 case EDC_OPT_AEL2005:
1029 fw_name = AEL2005_OPT_EDC_NAME;
1030 break;
1031 case EDC_TWX_AEL2005:
1032 fw_name = AEL2005_TWX_EDC_NAME;
1033 break;
1034 case EDC_TWX_AEL2020:
1035 fw_name = AEL2020_TWX_EDC_NAME;
1036 break;
1037 }
1038 return fw_name;
1039}
1040
1041int t3_get_edc_fw(struct cphy *phy, int edc_idx, int size)
1042{
1043 struct adapter *adapter = phy->adapter;
1044 const struct firmware *fw;
1045 char buf[64];
1046 u32 csum;
1047 const __be32 *p;
1048 u16 *cache = phy->phy_cache;
1049 int i, ret;
1050
1051 snprintf(buf, sizeof(buf), get_edc_fw_name(edc_idx));
1052
1053 ret = request_firmware(&fw, buf, &adapter->pdev->dev);
1054 if (ret < 0) {
1055 dev_err(&adapter->pdev->dev,
1056 "could not upgrade firmware: unable to load %s\n",
1057 buf);
1058 return ret;
1059 }
1060
1061 /* check size, take checksum in account */
1062 if (fw->size > size + 4) {
1063 CH_ERR(adapter, "firmware image too large %u, expected %d\n",
1064 (unsigned int)fw->size, size + 4);
1065 ret = -EINVAL;
1066 }
1067
1068 /* compute checksum */
1069 p = (const __be32 *)fw->data;
1070 for (csum = 0, i = 0; i < fw->size / sizeof(csum); i++)
1071 csum += ntohl(p[i]);
1072
1073 if (csum != 0xffffffff) {
1074 CH_ERR(adapter, "corrupted firmware image, checksum %u\n",
1075 csum);
1076 ret = -EINVAL;
1077 }
1078
1079 for (i = 0; i < size / 4 ; i++) {
1080 *cache++ = (be32_to_cpu(p[i]) & 0xffff0000) >> 16;
1081 *cache++ = be32_to_cpu(p[i]) & 0xffff;
1082 }
1083
1084 release_firmware(fw);
1085
1086 return ret;
1087}
2e283962
DLR		 1088
1089static int upgrade_fw(struct adapter *adap)
1090{
1091 int ret;
2e283962
DLR		 1092 const struct firmware *fw;
1093 struct device *dev = &adap->pdev->dev;
1094
34336ec0 1095 ret = request_firmware(&fw, FW_FNAME, dev);
2e283962
DLR		 1096 if (ret < 0) {
1097 dev_err(dev, "could not upgrade firmware: unable to load %s\n",
34336ec0 1098 FW_FNAME);
2e283962
DLR		 1099 return ret;
1100 }
1101 ret = t3_load_fw(adap, fw->data, fw->size);
1102 release_firmware(fw);
47330077
DLR		 1103
1104 if (ret == 0)
1105 dev_info(dev, "successful upgrade to firmware %d.%d.%d\n",
1106 FW_VERSION_MAJOR, FW_VERSION_MINOR, FW_VERSION_MICRO);
1107 else
1108 dev_err(dev, "failed to upgrade to firmware %d.%d.%d\n",
1109 FW_VERSION_MAJOR, FW_VERSION_MINOR, FW_VERSION_MICRO);
2eab17ab 1110
47330077
DLR		 1111 return ret;
1112}
1113
1114static inline char t3rev2char(struct adapter *adapter)
1115{
1116 char rev = 0;
1117
1118 switch(adapter->params.rev) {
1119 case T3_REV_B:
1120 case T3_REV_B2:
1121 rev = 'b';
1122 break;
1aafee26
DLR		 1123 case T3_REV_C:
1124 rev = 'c';
1125 break;
47330077
DLR		 1126 }
1127 return rev;
1128}
1129
9265fabf 1130static int update_tpsram(struct adapter *adap)
47330077
DLR		 1131{
1132 const struct firmware *tpsram;
1133 char buf[64];
1134 struct device *dev = &adap->pdev->dev;
1135 int ret;
1136 char rev;
2eab17ab 1137
47330077
DLR		 1138 rev = t3rev2char(adap);
1139 if (!rev)
1140 return 0;
1141
34336ec0 1142 snprintf(buf, sizeof(buf), TPSRAM_NAME, rev);
47330077
DLR		 1143
1144 ret = request_firmware(&tpsram, buf, dev);
1145 if (ret < 0) {
1146 dev_err(dev, "could not load TP SRAM: unable to load %s\n",
1147 buf);
1148 return ret;
1149 }
2eab17ab 1150
47330077
DLR		 1151 ret = t3_check_tpsram(adap, tpsram->data, tpsram->size);
1152 if (ret)
2eab17ab 1153 goto release_tpsram;
47330077
DLR		 1154
1155 ret = t3_set_proto_sram(adap, tpsram->data);
1156 if (ret == 0)
1157 dev_info(dev,
1158 "successful update of protocol engine "
1159 "to %d.%d.%d\n",
1160 TP_VERSION_MAJOR, TP_VERSION_MINOR, TP_VERSION_MICRO);
1161 else
1162 dev_err(dev, "failed to update of protocol engine %d.%d.%d\n",
1163 TP_VERSION_MAJOR, TP_VERSION_MINOR, TP_VERSION_MICRO);
1164 if (ret)
1165 dev_err(dev, "loading protocol SRAM failed\n");
1166
1167release_tpsram:
1168 release_firmware(tpsram);
2eab17ab 1169
2e283962
DLR		 1170 return ret;
1171}
1172
4d22de3e
DLR		 1173/**
1174 * cxgb_up - enable the adapter
1175 * @adapter: adapter being enabled
1176 *
1177 * Called when the first port is enabled, this function performs the
1178 * actions necessary to make an adapter operational, such as completing
1179 * the initialization of HW modules, and enabling interrupts.
1180 *
1181 * Must be called with the rtnl lock held.
1182 */
1183static int cxgb_up(struct adapter *adap)
1184{
c54f5c24 1185 int err;
4d22de3e
DLR		 1186
1187 if (!(adap->flags & FULL_INIT_DONE)) {
8207befa 1188 err = t3_check_fw_version(adap);
a5a3b460 1189 if (err == -EINVAL) {
2e283962 1190 err = upgrade_fw(adap);
8207befa
DLR		 1191 CH_WARN(adap, "FW upgrade to %d.%d.%d %s\n",
1192 FW_VERSION_MAJOR, FW_VERSION_MINOR,
1193 FW_VERSION_MICRO, err ? "failed" : "succeeded");
a5a3b460 1194 }
4d22de3e 1195
8207befa 1196 err = t3_check_tpsram_version(adap);
47330077
DLR		 1197 if (err == -EINVAL) {
1198 err = update_tpsram(adap);
8207befa
DLR		 1199 CH_WARN(adap, "TP upgrade to %d.%d.%d %s\n",
1200 TP_VERSION_MAJOR, TP_VERSION_MINOR,
1201 TP_VERSION_MICRO, err ? "failed" : "succeeded");
47330077
DLR		 1202 }
1203
20d3fc11
DLR		 1204 /*
1205 * Clear interrupts now to catch errors if t3_init_hw fails.
1206 * We clear them again later as initialization may trigger
1207 * conditions that can interrupt.
1208 */
1209 t3_intr_clear(adap);
1210
4d22de3e
DLR		 1211 err = t3_init_hw(adap, 0);
1212 if (err)
1213 goto out;
1214
b881955b 1215 t3_set_reg_field(adap, A_TP_PARA_REG5, 0, F_RXDDPOFFINIT);
6cdbd77e 1216 t3_write_reg(adap, A_ULPRX_TDDP_PSZ, V_HPZ0(PAGE_SHIFT - 12));
bea3348e 1217
4d22de3e
DLR		 1218 err = setup_sge_qsets(adap);
1219 if (err)
1220 goto out;
1221
1222 setup_rss(adap);
48c4b6db
DLR		 1223 if (!(adap->flags & NAPI_INIT))
1224 init_napi(adap);
31563789
DLR		 1225
1226 t3_start_sge_timers(adap);
4d22de3e
DLR		 1227 adap->flags |= FULL_INIT_DONE;
1228 }
1229
1230 t3_intr_clear(adap);
1231
1232 if (adap->flags & USING_MSIX) {
1233 name_msix_vecs(adap);
1234 err = request_irq(adap->msix_info[0].vec,
1235 t3_async_intr_handler, 0,
1236 adap->msix_info[0].desc, adap);
1237 if (err)
1238 goto irq_err;
1239
42256f57
DLR		 1240 err = request_msix_data_irqs(adap);
1241 if (err) {
4d22de3e
DLR		 1242 free_irq(adap->msix_info[0].vec, adap);
1243 goto irq_err;
1244 }
1245 } else if ((err = request_irq(adap->pdev->irq,
1246 t3_intr_handler(adap,
1247 adap->sge.qs[0].rspq.
1248 polling),
2db6346f
TG		 1249 (adap->flags & USING_MSI) ?
1250 0 : IRQF_SHARED,
4d22de3e
DLR		 1251 adap->name, adap)))
1252 goto irq_err;
1253
bea3348e 1254 enable_all_napi(adap);
4d22de3e
DLR		 1255 t3_sge_start(adap);
1256 t3_intr_enable(adap);
14ab9892 1257
b881955b
DLR		 1258 if (adap->params.rev >= T3_REV_C && !(adap->flags & TP_PARITY_INIT) &&
1259 is_offload(adap) && init_tp_parity(adap) == 0)
1260 adap->flags |= TP_PARITY_INIT;
1261
1262 if (adap->flags & TP_PARITY_INIT) {
1263 t3_write_reg(adap, A_TP_INT_CAUSE,
1264 F_CMCACHEPERR | F_ARPLUTPERR);
1265 t3_write_reg(adap, A_TP_INT_ENABLE, 0x7fbfffff);
1266 }
1267
8c263761 1268 if (!(adap->flags & QUEUES_BOUND)) {
18edc84c
DLR		 1269 int ret = bind_qsets(adap);
1270
1271 if (ret < 0) {
1272 CH_ERR(adap, "failed to bind qsets, err %d\n", ret);
8c263761
DLR		 1273 t3_intr_disable(adap);
1274 free_irq_resources(adap);
18edc84c 1275 err = ret;
8c263761
DLR		 1276 goto out;
1277 }
1278 adap->flags |= QUEUES_BOUND;
1279 }
14ab9892 1280
4d22de3e
DLR		 1281out:
1282 return err;
1283irq_err:
1284 CH_ERR(adap, "request_irq failed, err %d\n", err);
1285 goto out;
1286}
1287
1288/*
1289 * Release resources when all the ports and offloading have been stopped.
1290 */
55bc3228 1291static void cxgb_down(struct adapter *adapter, int on_wq)
4d22de3e
DLR		 1292{
1293 t3_sge_stop(adapter);
1294 spin_lock_irq(&adapter->work_lock); /* sync with PHY intr task */
1295 t3_intr_disable(adapter);
1296 spin_unlock_irq(&adapter->work_lock);
1297
8c263761 1298 free_irq_resources(adapter);
4d22de3e 1299 quiesce_rx(adapter);
a6f018e3 1300 t3_sge_stop(adapter);
55bc3228
CL		 1301 if (!on_wq)
1302 flush_workqueue(cxgb3_wq);/* wait for external IRQ handler */
4d22de3e
DLR		 1303}
1304
1305static void schedule_chk_task(struct adapter *adap)
1306{
1307 unsigned int timeo;
1308
1309 timeo = adap->params.linkpoll_period ?
1310 (HZ * adap->params.linkpoll_period) / 10 :
1311 adap->params.stats_update_period * HZ;
1312 if (timeo)
1313 queue_delayed_work(cxgb3_wq, &adap->adap_check_task, timeo);
1314}
1315
1316static int offload_open(struct net_device *dev)
1317{
5fbf816f
DLR		 1318 struct port_info *pi = netdev_priv(dev);
1319 struct adapter *adapter = pi->adapter;
1320 struct t3cdev *tdev = dev2t3cdev(dev);
4d22de3e 1321 int adap_up = adapter->open_device_map & PORT_MASK;
c54f5c24 1322 int err;
4d22de3e
DLR		 1323
1324 if (test_and_set_bit(OFFLOAD_DEVMAP_BIT, &adapter->open_device_map))
1325 return 0;
1326
1327 if (!adap_up && (err = cxgb_up(adapter)) < 0)
48c4b6db 1328 goto out;
4d22de3e
DLR		 1329
1330 t3_tp_set_offload_mode(adapter, 1);
1331 tdev->lldev = adapter->port[0];
1332 err = cxgb3_offload_activate(adapter);
1333 if (err)
1334 goto out;
1335
1336 init_port_mtus(adapter);
1337 t3_load_mtus(adapter, adapter->params.mtus, adapter->params.a_wnd,
1338 adapter->params.b_wnd,
1339 adapter->params.rev == 0 ?
1340 adapter->port[0]->mtu : 0xffff);
1341 init_smt(adapter);
1342
d96a51f6
DN		 1343 if (sysfs_create_group(&tdev->lldev->dev.kobj, &offload_attr_group))
1344 dev_dbg(&dev->dev, "cannot create sysfs group\n");
4d22de3e
DLR		 1345
1346 /* Call back all registered clients */
1347 cxgb3_add_clients(tdev);
1348
1349out:
1350 /* restore them in case the offload module has changed them */
1351 if (err) {
1352 t3_tp_set_offload_mode(adapter, 0);
1353 clear_bit(OFFLOAD_DEVMAP_BIT, &adapter->open_device_map);
1354 cxgb3_set_dummy_ops(tdev);
1355 }
1356 return err;
1357}
1358
1359static int offload_close(struct t3cdev *tdev)
1360{
1361 struct adapter *adapter = tdev2adap(tdev);
23f333a2 1362 struct t3c_data *td = T3C_DATA(tdev);
4d22de3e
DLR		 1363
1364 if (!test_bit(OFFLOAD_DEVMAP_BIT, &adapter->open_device_map))
1365 return 0;
1366
1367 /* Call back all registered clients */
1368 cxgb3_remove_clients(tdev);
1369
0ee8d33c 1370 sysfs_remove_group(&tdev->lldev->dev.kobj, &offload_attr_group);
4d22de3e 1371
c80b0c28 1372 /* Flush work scheduled while releasing TIDs */
23f333a2 1373 flush_work_sync(&td->tid_release_task);
c80b0c28 1374
4d22de3e
DLR		 1375 tdev->lldev = NULL;
1376 cxgb3_set_dummy_ops(tdev);
1377 t3_tp_set_offload_mode(adapter, 0);
1378 clear_bit(OFFLOAD_DEVMAP_BIT, &adapter->open_device_map);
1379
1380 if (!adapter->open_device_map)
55bc3228 1381 cxgb_down(adapter, 0);
4d22de3e
DLR		 1382
1383 cxgb3_offload_deactivate(adapter);
1384 return 0;
1385}
1386
1387static int cxgb_open(struct net_device *dev)
1388{
4d22de3e 1389 struct port_info *pi = netdev_priv(dev);
5fbf816f 1390 struct adapter *adapter = pi->adapter;
4d22de3e 1391 int other_ports = adapter->open_device_map & PORT_MASK;
5fbf816f 1392 int err;
4d22de3e 1393
48c4b6db 1394 if (!adapter->open_device_map && (err = cxgb_up(adapter)) < 0)
4d22de3e
DLR		 1395 return err;
1396
1397 set_bit(pi->port_id, &adapter->open_device_map);
8ac3ba68 1398 if (is_offload(adapter) && !ofld_disable) {
4d22de3e
DLR		 1399 err = offload_open(dev);
1400 if (err)
1401 printk(KERN_WARNING
1402 "Could not initialize offload capabilities\n");
1403 }
1404
19221e75
BH		 1405 netif_set_real_num_tx_queues(dev, pi->nqsets);
1406 err = netif_set_real_num_rx_queues(dev, pi->nqsets);
1407 if (err)
1408 return err;
4d22de3e
DLR		 1409 link_start(dev);
1410 t3_port_intr_enable(adapter, pi->port_id);
82ad3329 1411 netif_tx_start_all_queues(dev);
4d22de3e
DLR		 1412 if (!other_ports)
1413 schedule_chk_task(adapter);
1414
fa0d4c11 1415 cxgb3_event_notify(&adapter->tdev, OFFLOAD_PORT_UP, pi->port_id);
4d22de3e
DLR		 1416 return 0;
1417}
1418
55bc3228 1419static int __cxgb_close(struct net_device *dev, int on_wq)
4d22de3e 1420{
5fbf816f
DLR		 1421 struct port_info *pi = netdev_priv(dev);
1422 struct adapter *adapter = pi->adapter;
4d22de3e 1423
e8d19370
DLR		 1424
1425 if (!adapter->open_device_map)
1426 return 0;
1427
bf792094
DLR		 1428 /* Stop link fault interrupts */
1429 t3_xgm_intr_disable(adapter, pi->port_id);
1430 t3_read_reg(adapter, A_XGM_INT_STATUS + pi->mac.offset);
1431
5fbf816f 1432 t3_port_intr_disable(adapter, pi->port_id);
82ad3329 1433 netif_tx_stop_all_queues(dev);
5fbf816f 1434 pi->phy.ops->power_down(&pi->phy, 1);
4d22de3e 1435 netif_carrier_off(dev);
5fbf816f 1436 t3_mac_disable(&pi->mac, MAC_DIRECTION_TX | MAC_DIRECTION_RX);
4d22de3e 1437
20d3fc11 1438 spin_lock_irq(&adapter->work_lock); /* sync with update task */
5fbf816f 1439 clear_bit(pi->port_id, &adapter->open_device_map);
20d3fc11 1440 spin_unlock_irq(&adapter->work_lock);
4d22de3e
DLR		 1441
1442 if (!(adapter->open_device_map & PORT_MASK))
c80b0c28 1443 cancel_delayed_work_sync(&adapter->adap_check_task);
4d22de3e
DLR		 1444
1445 if (!adapter->open_device_map)
55bc3228 1446 cxgb_down(adapter, on_wq);
4d22de3e 1447
fa0d4c11 1448 cxgb3_event_notify(&adapter->tdev, OFFLOAD_PORT_DOWN, pi->port_id);
4d22de3e
DLR		 1449 return 0;
1450}
1451
55bc3228
CL		 1452static int cxgb_close(struct net_device *dev)
1453{
1454 return __cxgb_close(dev, 0);
1455}
1456
4d22de3e
DLR		 1457static struct net_device_stats *cxgb_get_stats(struct net_device *dev)
1458{
5fbf816f
DLR		 1459 struct port_info *pi = netdev_priv(dev);
1460 struct adapter *adapter = pi->adapter;
1461 struct net_device_stats *ns = &pi->netstats;
4d22de3e
DLR		 1462 const struct mac_stats *pstats;
1463
1464 spin_lock(&adapter->stats_lock);
5fbf816f 1465 pstats = t3_mac_update_stats(&pi->mac);
4d22de3e
DLR		 1466 spin_unlock(&adapter->stats_lock);
1467
1468 ns->tx_bytes = pstats->tx_octets;
1469 ns->tx_packets = pstats->tx_frames;
1470 ns->rx_bytes = pstats->rx_octets;
1471 ns->rx_packets = pstats->rx_frames;
1472 ns->multicast = pstats->rx_mcast_frames;
1473
1474 ns->tx_errors = pstats->tx_underrun;
1475 ns->rx_errors = pstats->rx_symbol_errs + pstats->rx_fcs_errs +
1476 pstats->rx_too_long + pstats->rx_jabber + pstats->rx_short +
1477 pstats->rx_fifo_ovfl;
1478
1479 /* detailed rx_errors */
1480 ns->rx_length_errors = pstats->rx_jabber + pstats->rx_too_long;
1481 ns->rx_over_errors = 0;
1482 ns->rx_crc_errors = pstats->rx_fcs_errs;
1483 ns->rx_frame_errors = pstats->rx_symbol_errs;
1484 ns->rx_fifo_errors = pstats->rx_fifo_ovfl;
1485 ns->rx_missed_errors = pstats->rx_cong_drops;
1486
1487 /* detailed tx_errors */
1488 ns->tx_aborted_errors = 0;
1489 ns->tx_carrier_errors = 0;
1490 ns->tx_fifo_errors = pstats->tx_underrun;
1491 ns->tx_heartbeat_errors = 0;
1492 ns->tx_window_errors = 0;
1493 return ns;
1494}
1495
1496static u32 get_msglevel(struct net_device *dev)
1497{
5fbf816f
DLR		 1498 struct port_info *pi = netdev_priv(dev);
1499 struct adapter *adapter = pi->adapter;
4d22de3e
DLR		 1500
1501 return adapter->msg_enable;
1502}
1503
1504static void set_msglevel(struct net_device *dev, u32 val)
1505{
5fbf816f
DLR		 1506 struct port_info *pi = netdev_priv(dev);
1507 struct adapter *adapter = pi->adapter;
4d22de3e
DLR		 1508
1509 adapter->msg_enable = val;
1510}
1511
1512static char stats_strings[][ETH_GSTRING_LEN] = {
1513 "TxOctetsOK ",
1514 "TxFramesOK ",
1515 "TxMulticastFramesOK",
1516 "TxBroadcastFramesOK",
1517 "TxPauseFrames ",
1518 "TxUnderrun ",
1519 "TxExtUnderrun ",
1520
1521 "TxFrames64 ",
1522 "TxFrames65To127 ",
1523 "TxFrames128To255 ",
1524 "TxFrames256To511 ",
1525 "TxFrames512To1023 ",
1526 "TxFrames1024To1518 ",
1527 "TxFrames1519ToMax ",
1528
1529 "RxOctetsOK ",
1530 "RxFramesOK ",
1531 "RxMulticastFramesOK",
1532 "RxBroadcastFramesOK",
1533 "RxPauseFrames ",
1534 "RxFCSErrors ",
1535 "RxSymbolErrors ",
1536 "RxShortErrors ",
1537 "RxJabberErrors ",
1538 "RxLengthErrors ",
1539 "RxFIFOoverflow ",
1540
1541 "RxFrames64 ",
1542 "RxFrames65To127 ",
1543 "RxFrames128To255 ",
1544 "RxFrames256To511 ",
1545 "RxFrames512To1023 ",
1546 "RxFrames1024To1518 ",
1547 "RxFrames1519ToMax ",
1548
1549 "PhyFIFOErrors ",
1550 "TSO ",
1551 "VLANextractions ",
1552 "VLANinsertions ",
1553 "TxCsumOffload ",
1554 "RxCsumGood ",
b47385bd
DLR		 1555 "LroAggregated ",
1556 "LroFlushed ",
1557 "LroNoDesc ",
fc90664e
DLR		 1558 "RxDrops ",
1559
1560 "CheckTXEnToggled ",
1561 "CheckResets ",
1562
bf792094 1563 "LinkFaults ",
4d22de3e
DLR		 1564};
1565
b9f2c044 1566static int get_sset_count(struct net_device *dev, int sset)
4d22de3e 1567{
b9f2c044
JG		 1568 switch (sset) {
1569 case ETH_SS_STATS:
1570 return ARRAY_SIZE(stats_strings);
1571 default:
1572 return -EOPNOTSUPP;
1573 }
4d22de3e
DLR		 1574}
1575
1576#define T3_REGMAP_SIZE (3 * 1024)
1577
1578static int get_regs_len(struct net_device *dev)
1579{
1580 return T3_REGMAP_SIZE;
1581}
1582
1583static int get_eeprom_len(struct net_device *dev)
1584{
1585 return EEPROMSIZE;
1586}
1587
1588static void get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
1589{
5fbf816f
DLR		 1590 struct port_info *pi = netdev_priv(dev);
1591 struct adapter *adapter = pi->adapter;
4d22de3e 1592 u32 fw_vers = 0;
47330077 1593 u32 tp_vers = 0;
4d22de3e 1594
cf3760da 1595 spin_lock(&adapter->stats_lock);
4d22de3e 1596 t3_get_fw_version(adapter, &fw_vers);
47330077 1597 t3_get_tp_version(adapter, &tp_vers);
cf3760da 1598 spin_unlock(&adapter->stats_lock);
4d22de3e
DLR		 1599
1600 strcpy(info->driver, DRV_NAME);
1601 strcpy(info->version, DRV_VERSION);
1602 strcpy(info->bus_info, pci_name(adapter->pdev));
1603 if (!fw_vers)
1604 strcpy(info->fw_version, "N/A");
4aac3899 1605 else {
4d22de3e 1606 snprintf(info->fw_version, sizeof(info->fw_version),
47330077 1607 "%s %u.%u.%u TP %u.%u.%u",
4aac3899
DLR		 1608 G_FW_VERSION_TYPE(fw_vers) ? "T" : "N",
1609 G_FW_VERSION_MAJOR(fw_vers),
1610 G_FW_VERSION_MINOR(fw_vers),
47330077
DLR		 1611 G_FW_VERSION_MICRO(fw_vers),
1612 G_TP_VERSION_MAJOR(tp_vers),
1613 G_TP_VERSION_MINOR(tp_vers),
1614 G_TP_VERSION_MICRO(tp_vers));
4aac3899 1615 }
4d22de3e
DLR		 1616}
1617
1618static void get_strings(struct net_device *dev, u32 stringset, u8 * data)
1619{
1620 if (stringset == ETH_SS_STATS)
1621 memcpy(data, stats_strings, sizeof(stats_strings));
1622}
1623
1624static unsigned long collect_sge_port_stats(struct adapter *adapter,
1625 struct port_info *p, int idx)
1626{
1627 int i;
1628 unsigned long tot = 0;
1629
8c263761
DLR		 1630 for (i = p->first_qset; i < p->first_qset + p->nqsets; ++i)
1631 tot += adapter->sge.qs[i].port_stats[idx];
4d22de3e
DLR		 1632 return tot;
1633}
1634
1635static void get_stats(struct net_device *dev, struct ethtool_stats *stats,
1636 u64 *data)
1637{
4d22de3e 1638 struct port_info *pi = netdev_priv(dev);
5fbf816f 1639 struct adapter *adapter = pi->adapter;
4d22de3e
DLR		 1640 const struct mac_stats *s;
1641
1642 spin_lock(&adapter->stats_lock);
1643 s = t3_mac_update_stats(&pi->mac);
1644 spin_unlock(&adapter->stats_lock);
1645
1646 *data++ = s->tx_octets;
1647 *data++ = s->tx_frames;
1648 *data++ = s->tx_mcast_frames;
1649 *data++ = s->tx_bcast_frames;
1650 *data++ = s->tx_pause;
1651 *data++ = s->tx_underrun;
1652 *data++ = s->tx_fifo_urun;
1653
1654 *data++ = s->tx_frames_64;
1655 *data++ = s->tx_frames_65_127;
1656 *data++ = s->tx_frames_128_255;
1657 *data++ = s->tx_frames_256_511;
1658 *data++ = s->tx_frames_512_1023;
1659 *data++ = s->tx_frames_1024_1518;
1660 *data++ = s->tx_frames_1519_max;
1661
1662 *data++ = s->rx_octets;
1663 *data++ = s->rx_frames;
1664 *data++ = s->rx_mcast_frames;
1665 *data++ = s->rx_bcast_frames;
1666 *data++ = s->rx_pause;
1667 *data++ = s->rx_fcs_errs;
1668 *data++ = s->rx_symbol_errs;
1669 *data++ = s->rx_short;
1670 *data++ = s->rx_jabber;
1671 *data++ = s->rx_too_long;
1672 *data++ = s->rx_fifo_ovfl;
1673
1674 *data++ = s->rx_frames_64;
1675 *data++ = s->rx_frames_65_127;
1676 *data++ = s->rx_frames_128_255;
1677 *data++ = s->rx_frames_256_511;
1678 *data++ = s->rx_frames_512_1023;
1679 *data++ = s->rx_frames_1024_1518;
1680 *data++ = s->rx_frames_1519_max;
1681
1682 *data++ = pi->phy.fifo_errors;
1683
1684 *data++ = collect_sge_port_stats(adapter, pi, SGE_PSTAT_TSO);
1685 *data++ = collect_sge_port_stats(adapter, pi, SGE_PSTAT_VLANEX);
1686 *data++ = collect_sge_port_stats(adapter, pi, SGE_PSTAT_VLANINS);
1687 *data++ = collect_sge_port_stats(adapter, pi, SGE_PSTAT_TX_CSUM);
1688 *data++ = collect_sge_port_stats(adapter, pi, SGE_PSTAT_RX_CSUM_GOOD);
7be2df45
HX		 1689 *data++ = 0;
1690 *data++ = 0;
1691 *data++ = 0;
4d22de3e 1692 *data++ = s->rx_cong_drops;
fc90664e
DLR		 1693
1694 *data++ = s->num_toggled;
1695 *data++ = s->num_resets;
bf792094
DLR		 1696
1697 *data++ = s->link_faults;
4d22de3e
DLR		 1698}
1699
1700static inline void reg_block_dump(struct adapter *ap, void *buf,
1701 unsigned int start, unsigned int end)
1702{
1703 u32 *p = buf + start;
1704
1705 for (; start <= end; start += sizeof(u32))
1706 *p++ = t3_read_reg(ap, start);
1707}
1708
1709static void get_regs(struct net_device *dev, struct ethtool_regs *regs,
1710 void *buf)
1711{
5fbf816f
DLR		 1712 struct port_info *pi = netdev_priv(dev);
1713 struct adapter *ap = pi->adapter;
4d22de3e
DLR		 1714
1715 /*
1716 * Version scheme:
1717 * bits 0..9: chip version
1718 * bits 10..15: chip revision
1719 * bit 31: set for PCIe cards
1720 */
1721 regs->version = 3 | (ap->params.rev << 10) | (is_pcie(ap) << 31);
1722
1723 /*
1724 * We skip the MAC statistics registers because they are clear-on-read.
1725 * Also reading multi-register stats would need to synchronize with the
1726 * periodic mac stats accumulation. Hard to justify the complexity.
1727 */
1728 memset(buf, 0, T3_REGMAP_SIZE);
1729 reg_block_dump(ap, buf, 0, A_SG_RSPQ_CREDIT_RETURN);
1730 reg_block_dump(ap, buf, A_SG_HI_DRB_HI_THRSH, A_ULPRX_PBL_ULIMIT);
1731 reg_block_dump(ap, buf, A_ULPTX_CONFIG, A_MPS_INT_CAUSE);
1732 reg_block_dump(ap, buf, A_CPL_SWITCH_CNTRL, A_CPL_MAP_TBL_DATA);
1733 reg_block_dump(ap, buf, A_SMB_GLOBAL_TIME_CFG, A_XGM_SERDES_STAT3);
1734 reg_block_dump(ap, buf, A_XGM_SERDES_STATUS0,
1735 XGM_REG(A_XGM_SERDES_STAT3, 1));
1736 reg_block_dump(ap, buf, XGM_REG(A_XGM_SERDES_STATUS0, 1),
1737 XGM_REG(A_XGM_RX_SPI4_SOP_EOP_CNT, 1));
1738}
1739
1740static int restart_autoneg(struct net_device *dev)
1741{
1742 struct port_info *p = netdev_priv(dev);
1743
1744 if (!netif_running(dev))
1745 return -EAGAIN;
1746 if (p->link_config.autoneg != AUTONEG_ENABLE)
1747 return -EINVAL;
1748 p->phy.ops->autoneg_restart(&p->phy);
1749 return 0;
1750}
1751
1752static int cxgb3_phys_id(struct net_device *dev, u32 data)
1753{
5fbf816f
DLR		 1754 struct port_info *pi = netdev_priv(dev);
1755 struct adapter *adapter = pi->adapter;
4d22de3e 1756 int i;
4d22de3e
DLR		 1757
1758 if (data == 0)
1759 data = 2;
1760
1761 for (i = 0; i < data * 2; i++) {
1762 t3_set_reg_field(adapter, A_T3DBG_GPIO_EN, F_GPIO0_OUT_VAL,
1763 (i & 1) ? F_GPIO0_OUT_VAL : 0);
1764 if (msleep_interruptible(500))
1765 break;
1766 }
1767 t3_set_reg_field(adapter, A_T3DBG_GPIO_EN, F_GPIO0_OUT_VAL,
1768 F_GPIO0_OUT_VAL);
1769 return 0;
1770}
1771
1772static int get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
1773{
1774 struct port_info *p = netdev_priv(dev);
1775
1776 cmd->supported = p->link_config.supported;
1777 cmd->advertising = p->link_config.advertising;
1778
1779 if (netif_carrier_ok(dev)) {
1780 cmd->speed = p->link_config.speed;
1781 cmd->duplex = p->link_config.duplex;
1782 } else {
1783 cmd->speed = -1;
1784 cmd->duplex = -1;
1785 }
1786
1787 cmd->port = (cmd->supported & SUPPORTED_TP) ? PORT_TP : PORT_FIBRE;
0f07c4ee 1788 cmd->phy_address = p->phy.mdio.prtad;
4d22de3e
DLR		 1789 cmd->transceiver = XCVR_EXTERNAL;
1790 cmd->autoneg = p->link_config.autoneg;
1791 cmd->maxtxpkt = 0;
1792 cmd->maxrxpkt = 0;
1793 return 0;
1794}
1795
1796static int speed_duplex_to_caps(int speed, int duplex)
1797{
1798 int cap = 0;
1799
1800 switch (speed) {
1801 case SPEED_10:
1802 if (duplex == DUPLEX_FULL)
1803 cap = SUPPORTED_10baseT_Full;
1804 else
1805 cap = SUPPORTED_10baseT_Half;
1806 break;
1807 case SPEED_100:
1808 if (duplex == DUPLEX_FULL)
1809 cap = SUPPORTED_100baseT_Full;
1810 else
1811 cap = SUPPORTED_100baseT_Half;
1812 break;
1813 case SPEED_1000:
1814 if (duplex == DUPLEX_FULL)
1815 cap = SUPPORTED_1000baseT_Full;
1816 else
1817 cap = SUPPORTED_1000baseT_Half;
1818 break;
1819 case SPEED_10000:
1820 if (duplex == DUPLEX_FULL)
1821 cap = SUPPORTED_10000baseT_Full;
1822 }
1823 return cap;
1824}
1825
1826#define ADVERTISED_MASK (ADVERTISED_10baseT_Half | ADVERTISED_10baseT_Full | \
1827 ADVERTISED_100baseT_Half | ADVERTISED_100baseT_Full | \
1828 ADVERTISED_1000baseT_Half | ADVERTISED_1000baseT_Full | \
1829 ADVERTISED_10000baseT_Full)
1830
1831static int set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
1832{
1833 struct port_info *p = netdev_priv(dev);
1834 struct link_config *lc = &p->link_config;
1835
9b1e3656
DLR		 1836 if (!(lc->supported & SUPPORTED_Autoneg)) {
1837 /*
1838 * PHY offers a single speed/duplex. See if that's what's
1839 * being requested.
1840 */
1841 if (cmd->autoneg == AUTONEG_DISABLE) {
97915b5b 1842 int cap = speed_duplex_to_caps(cmd->speed, cmd->duplex);
9b1e3656
DLR		 1843 if (lc->supported & cap)
1844 return 0;
1845 }
1846 return -EINVAL;
1847 }
4d22de3e
DLR		 1848
1849 if (cmd->autoneg == AUTONEG_DISABLE) {
1850 int cap = speed_duplex_to_caps(cmd->speed, cmd->duplex);
1851
1852 if (!(lc->supported & cap) || cmd->speed == SPEED_1000)
1853 return -EINVAL;
1854 lc->requested_speed = cmd->speed;
1855 lc->requested_duplex = cmd->duplex;
1856 lc->advertising = 0;
1857 } else {
1858 cmd->advertising &= ADVERTISED_MASK;
1859 cmd->advertising &= lc->supported;
1860 if (!cmd->advertising)
1861 return -EINVAL;
1862 lc->requested_speed = SPEED_INVALID;
1863 lc->requested_duplex = DUPLEX_INVALID;
1864 lc->advertising = cmd->advertising | ADVERTISED_Autoneg;
1865 }
1866 lc->autoneg = cmd->autoneg;
1867 if (netif_running(dev))
1868 t3_link_start(&p->phy, &p->mac, lc);
1869 return 0;
1870}
1871
1872static void get_pauseparam(struct net_device *dev,
1873 struct ethtool_pauseparam *epause)
1874{
1875 struct port_info *p = netdev_priv(dev);
1876
1877 epause->autoneg = (p->link_config.requested_fc & PAUSE_AUTONEG) != 0;
1878 epause->rx_pause = (p->link_config.fc & PAUSE_RX) != 0;
1879 epause->tx_pause = (p->link_config.fc & PAUSE_TX) != 0;
1880}
1881
1882static int set_pauseparam(struct net_device *dev,
1883 struct ethtool_pauseparam *epause)
1884{
1885 struct port_info *p = netdev_priv(dev);
1886 struct link_config *lc = &p->link_config;
1887
1888 if (epause->autoneg == AUTONEG_DISABLE)
1889 lc->requested_fc = 0;
1890 else if (lc->supported & SUPPORTED_Autoneg)
1891 lc->requested_fc = PAUSE_AUTONEG;
1892 else
1893 return -EINVAL;
1894
1895 if (epause->rx_pause)
1896 lc->requested_fc |= PAUSE_RX;
1897 if (epause->tx_pause)
1898 lc->requested_fc |= PAUSE_TX;
1899 if (lc->autoneg == AUTONEG_ENABLE) {
1900 if (netif_running(dev))
1901 t3_link_start(&p->phy, &p->mac, lc);
1902 } else {
1903 lc->fc = lc->requested_fc & (PAUSE_RX | PAUSE_TX);
1904 if (netif_running(dev))
1905 t3_mac_set_speed_duplex_fc(&p->mac, -1, -1, lc->fc);
1906 }
1907 return 0;
1908}
1909
1910static u32 get_rx_csum(struct net_device *dev)
1911{
1912 struct port_info *p = netdev_priv(dev);
1913
47fd23fe 1914 return p->rx_offload & T3_RX_CSUM;
4d22de3e
DLR		 1915}
1916
1917static int set_rx_csum(struct net_device *dev, u32 data)
1918{
1919 struct port_info *p = netdev_priv(dev);
1920
47fd23fe
RD		 1921 if (data) {
1922 p->rx_offload |= T3_RX_CSUM;
1923 } else {
b47385bd
DLR		 1924 int i;
1925
47fd23fe 1926 p->rx_offload &= ~(T3_RX_CSUM | T3_LRO);
04ecb072
DLR		 1927 for (i = p->first_qset; i < p->first_qset + p->nqsets; i++)
1928 set_qset_lro(dev, i, 0);
b47385bd 1929 }
4d22de3e
DLR		 1930 return 0;
1931}
1932
1933static void get_sge_param(struct net_device *dev, struct ethtool_ringparam *e)
1934{
5fbf816f
DLR		 1935 struct port_info *pi = netdev_priv(dev);
1936 struct adapter *adapter = pi->adapter;
05b97b30 1937 const struct qset_params *q = &adapter->params.sge.qset[pi->first_qset];
4d22de3e
DLR		 1938
1939 e->rx_max_pending = MAX_RX_BUFFERS;
1940 e->rx_mini_max_pending = 0;
1941 e->rx_jumbo_max_pending = MAX_RX_JUMBO_BUFFERS;
1942 e->tx_max_pending = MAX_TXQ_ENTRIES;
1943
05b97b30
DLR		 1944 e->rx_pending = q->fl_size;
1945 e->rx_mini_pending = q->rspq_size;
1946 e->rx_jumbo_pending = q->jumbo_size;
1947 e->tx_pending = q->txq_size[0];
4d22de3e
DLR		 1948}
1949
1950static int set_sge_param(struct net_device *dev, struct ethtool_ringparam *e)
1951{
5fbf816f
DLR		 1952 struct port_info *pi = netdev_priv(dev);
1953 struct adapter *adapter = pi->adapter;
05b97b30 1954 struct qset_params *q;
5fbf816f 1955 int i;
4d22de3e
DLR		 1956
1957 if (e->rx_pending > MAX_RX_BUFFERS ||
1958 e->rx_jumbo_pending > MAX_RX_JUMBO_BUFFERS ||
1959 e->tx_pending > MAX_TXQ_ENTRIES ||
1960 e->rx_mini_pending > MAX_RSPQ_ENTRIES ||
1961 e->rx_mini_pending < MIN_RSPQ_ENTRIES ||
1962 e->rx_pending < MIN_FL_ENTRIES ||
1963 e->rx_jumbo_pending < MIN_FL_ENTRIES ||
1964 e->tx_pending < adapter->params.nports * MIN_TXQ_ENTRIES)
1965 return -EINVAL;
1966
1967 if (adapter->flags & FULL_INIT_DONE)
1968 return -EBUSY;
1969
05b97b30
DLR		 1970 q = &adapter->params.sge.qset[pi->first_qset];
1971 for (i = 0; i < pi->nqsets; ++i, ++q) {
4d22de3e
DLR		 1972 q->rspq_size = e->rx_mini_pending;
1973 q->fl_size = e->rx_pending;
1974 q->jumbo_size = e->rx_jumbo_pending;
1975 q->txq_size[0] = e->tx_pending;
1976 q->txq_size[1] = e->tx_pending;
1977 q->txq_size[2] = e->tx_pending;
1978 }
1979 return 0;
1980}
1981
1982static int set_coalesce(struct net_device *dev, struct ethtool_coalesce *c)
1983{
5fbf816f
DLR		 1984 struct port_info *pi = netdev_priv(dev);
1985 struct adapter *adapter = pi->adapter;
4d22de3e
DLR		 1986 struct qset_params *qsp = &adapter->params.sge.qset[0];
1987 struct sge_qset *qs = &adapter->sge.qs[0];
1988
1989 if (c->rx_coalesce_usecs * 10 > M_NEWTIMER)
1990 return -EINVAL;
1991
1992 qsp->coalesce_usecs = c->rx_coalesce_usecs;
1993 t3_update_qset_coalesce(qs, qsp);
1994 return 0;
1995}
1996
1997static int get_coalesce(struct net_device *dev, struct ethtool_coalesce *c)
1998{
5fbf816f
DLR		 1999 struct port_info *pi = netdev_priv(dev);
2000 struct adapter *adapter = pi->adapter;
4d22de3e
DLR		 2001 struct qset_params *q = adapter->params.sge.qset;
2002
2003 c->rx_coalesce_usecs = q->coalesce_usecs;
2004 return 0;
2005}
2006
2007static int get_eeprom(struct net_device *dev, struct ethtool_eeprom *e,
2008 u8 * data)
2009{
5fbf816f
DLR		 2010 struct port_info *pi = netdev_priv(dev);
2011 struct adapter *adapter = pi->adapter;
4d22de3e 2012 int i, err = 0;
4d22de3e
DLR		 2013
2014 u8 *buf = kmalloc(EEPROMSIZE, GFP_KERNEL);
2015 if (!buf)
2016 return -ENOMEM;
2017
2018 e->magic = EEPROM_MAGIC;
2019 for (i = e->offset & ~3; !err && i < e->offset + e->len; i += 4)
05e5c116 2020 err = t3_seeprom_read(adapter, i, (__le32 *) & buf[i]);
4d22de3e
DLR		 2021
2022 if (!err)
2023 memcpy(data, buf + e->offset, e->len);
2024 kfree(buf);
2025 return err;
2026}
2027
2028static int set_eeprom(struct net_device *dev, struct ethtool_eeprom *eeprom,
2029 u8 * data)
2030{
5fbf816f
DLR		 2031 struct port_info *pi = netdev_priv(dev);
2032 struct adapter *adapter = pi->adapter;
05e5c116
AV		 2033 u32 aligned_offset, aligned_len;
2034 __le32 *p;
4d22de3e 2035 u8 *buf;
c54f5c24 2036 int err;
4d22de3e
DLR		 2037
2038 if (eeprom->magic != EEPROM_MAGIC)
2039 return -EINVAL;
2040
2041 aligned_offset = eeprom->offset & ~3;
2042 aligned_len = (eeprom->len + (eeprom->offset & 3) + 3) & ~3;
2043
2044 if (aligned_offset != eeprom->offset || aligned_len != eeprom->len) {
2045 buf = kmalloc(aligned_len, GFP_KERNEL);
2046 if (!buf)
2047 return -ENOMEM;
05e5c116 2048 err = t3_seeprom_read(adapter, aligned_offset, (__le32 *) buf);
4d22de3e
DLR		 2049 if (!err && aligned_len > 4)
2050 err = t3_seeprom_read(adapter,
2051 aligned_offset + aligned_len - 4,
05e5c116 2052 (__le32 *) & buf[aligned_len - 4]);
4d22de3e
DLR		 2053 if (err)
2054 goto out;
2055 memcpy(buf + (eeprom->offset & 3), data, eeprom->len);
2056 } else
2057 buf = data;
2058
2059 err = t3_seeprom_wp(adapter, 0);
2060 if (err)
2061 goto out;
2062
05e5c116 2063 for (p = (__le32 *) buf; !err && aligned_len; aligned_len -= 4, p++) {
4d22de3e
DLR		 2064 err = t3_seeprom_write(adapter, aligned_offset, *p);
2065 aligned_offset += 4;
2066 }
2067
2068 if (!err)
2069 err = t3_seeprom_wp(adapter, 1);
2070out:
2071 if (buf != data)
2072 kfree(buf);
2073 return err;
2074}
2075
2076static void get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
2077{
2078 wol->supported = 0;
2079 wol->wolopts = 0;
2080 memset(&wol->sopass, 0, sizeof(wol->sopass));
2081}
2082
2083static const struct ethtool_ops cxgb_ethtool_ops = {
2084 .get_settings = get_settings,
2085 .set_settings = set_settings,
2086 .get_drvinfo = get_drvinfo,
2087 .get_msglevel = get_msglevel,
2088 .set_msglevel = set_msglevel,
2089 .get_ringparam = get_sge_param,
2090 .set_ringparam = set_sge_param,
2091 .get_coalesce = get_coalesce,
2092 .set_coalesce = set_coalesce,
2093 .get_eeprom_len = get_eeprom_len,
2094 .get_eeprom = get_eeprom,
2095 .set_eeprom = set_eeprom,
2096 .get_pauseparam = get_pauseparam,
2097 .set_pauseparam = set_pauseparam,
2098 .get_rx_csum = get_rx_csum,
2099 .set_rx_csum = set_rx_csum,
4d22de3e 2100 .set_tx_csum = ethtool_op_set_tx_csum,
4d22de3e
DLR		 2101 .set_sg = ethtool_op_set_sg,
2102 .get_link = ethtool_op_get_link,
2103 .get_strings = get_strings,
2104 .phys_id = cxgb3_phys_id,
2105 .nway_reset = restart_autoneg,
b9f2c044 2106 .get_sset_count = get_sset_count,
4d22de3e
DLR		 2107 .get_ethtool_stats = get_stats,
2108 .get_regs_len = get_regs_len,
2109 .get_regs = get_regs,
2110 .get_wol = get_wol,
4d22de3e 2111 .set_tso = ethtool_op_set_tso,
4d22de3e
DLR		 2112};
2113
2114static int in_range(int val, int lo, int hi)
2115{
2116 return val < 0 || (val <= hi && val >= lo);
2117}
2118
2119static int cxgb_extension_ioctl(struct net_device *dev, void __user *useraddr)
2120{
5fbf816f
DLR		 2121 struct port_info *pi = netdev_priv(dev);
2122 struct adapter *adapter = pi->adapter;
4d22de3e 2123 u32 cmd;
5fbf816f 2124 int ret;
4d22de3e
DLR		 2125
2126 if (copy_from_user(&cmd, useraddr, sizeof(cmd)))
2127 return -EFAULT;
2128
2129 switch (cmd) {
4d22de3e
DLR		 2130 case CHELSIO_SET_QSET_PARAMS:{
2131 int i;
2132 struct qset_params *q;
2133 struct ch_qset_params t;
8c263761
DLR		 2134 int q1 = pi->first_qset;
2135 int nqsets = pi->nqsets;
4d22de3e
DLR		 2136
2137 if (!capable(CAP_NET_ADMIN))
2138 return -EPERM;
2139 if (copy_from_user(&t, useraddr, sizeof(t)))
2140 return -EFAULT;
2141 if (t.qset_idx >= SGE_QSETS)
2142 return -EINVAL;
2143 if (!in_range(t.intr_lat, 0, M_NEWTIMER) ||
8e95a202
JP		 2144 !in_range(t.cong_thres, 0, 255) ||
2145 !in_range(t.txq_size[0], MIN_TXQ_ENTRIES,
2146 MAX_TXQ_ENTRIES) ||
2147 !in_range(t.txq_size[1], MIN_TXQ_ENTRIES,
2148 MAX_TXQ_ENTRIES) ||
2149 !in_range(t.txq_size[2], MIN_CTRL_TXQ_ENTRIES,
2150 MAX_CTRL_TXQ_ENTRIES) ||
2151 !in_range(t.fl_size[0], MIN_FL_ENTRIES,
2152 MAX_RX_BUFFERS) ||
2153 !in_range(t.fl_size[1], MIN_FL_ENTRIES,
2154 MAX_RX_JUMBO_BUFFERS) ||
2155 !in_range(t.rspq_size, MIN_RSPQ_ENTRIES,
2156 MAX_RSPQ_ENTRIES))
4d22de3e 2157 return -EINVAL;
8c263761
DLR		 2158
2159 if ((adapter->flags & FULL_INIT_DONE) && t.lro > 0)
2160 for_each_port(adapter, i) {
2161 pi = adap2pinfo(adapter, i);
2162 if (t.qset_idx >= pi->first_qset &&
2163 t.qset_idx < pi->first_qset + pi->nqsets &&
47fd23fe 2164 !(pi->rx_offload & T3_RX_CSUM))
8c263761
DLR		 2165 return -EINVAL;
2166 }
2167
4d22de3e
DLR		 2168 if ((adapter->flags & FULL_INIT_DONE) &&
2169 (t.rspq_size >= 0 || t.fl_size[0] >= 0 ||
2170 t.fl_size[1] >= 0 || t.txq_size[0] >= 0 ||
2171 t.txq_size[1] >= 0 || t.txq_size[2] >= 0 ||
2172 t.polling >= 0 || t.cong_thres >= 0))
2173 return -EBUSY;
2174
8c263761
DLR		 2175 /* Allow setting of any available qset when offload enabled */
2176 if (test_bit(OFFLOAD_DEVMAP_BIT, &adapter->open_device_map)) {
2177 q1 = 0;
2178 for_each_port(adapter, i) {
2179 pi = adap2pinfo(adapter, i);
2180 nqsets += pi->first_qset + pi->nqsets;
2181 }
2182 }
2183
2184 if (t.qset_idx < q1)
2185 return -EINVAL;
2186 if (t.qset_idx > q1 + nqsets - 1)
2187 return -EINVAL;
2188
4d22de3e
DLR		 2189 q = &adapter->params.sge.qset[t.qset_idx];
2190
2191 if (t.rspq_size >= 0)
2192 q->rspq_size = t.rspq_size;
2193 if (t.fl_size[0] >= 0)
2194 q->fl_size = t.fl_size[0];
2195 if (t.fl_size[1] >= 0)
2196 q->jumbo_size = t.fl_size[1];
2197 if (t.txq_size[0] >= 0)
2198 q->txq_size[0] = t.txq_size[0];
2199 if (t.txq_size[1] >= 0)
2200 q->txq_size[1] = t.txq_size[1];
2201 if (t.txq_size[2] >= 0)
2202 q->txq_size[2] = t.txq_size[2];
2203 if (t.cong_thres >= 0)
2204 q->cong_thres = t.cong_thres;
2205 if (t.intr_lat >= 0) {
2206 struct sge_qset *qs =
2207 &adapter->sge.qs[t.qset_idx];
2208
2209 q->coalesce_usecs = t.intr_lat;
2210 t3_update_qset_coalesce(qs, q);
2211 }
2212 if (t.polling >= 0) {
2213 if (adapter->flags & USING_MSIX)
2214 q->polling = t.polling;
2215 else {
2216 /* No polling with INTx for T3A */
2217 if (adapter->params.rev == 0 &&
2218 !(adapter->flags & USING_MSI))
2219 t.polling = 0;
2220
2221 for (i = 0; i < SGE_QSETS; i++) {
2222 q = &adapter->params.sge.
2223 qset[i];
2224 q->polling = t.polling;
2225 }
2226 }
2227 }
04ecb072
DLR		 2228 if (t.lro >= 0)
2229 set_qset_lro(dev, t.qset_idx, t.lro);
2230
4d22de3e
DLR		 2231 break;
2232 }
2233 case CHELSIO_GET_QSET_PARAMS:{
2234 struct qset_params *q;
2235 struct ch_qset_params t;
8c263761
DLR		 2236 int q1 = pi->first_qset;
2237 int nqsets = pi->nqsets;
2238 int i;
4d22de3e
DLR		 2239
2240 if (copy_from_user(&t, useraddr, sizeof(t)))
2241 return -EFAULT;
8c263761
DLR		 2242
2243 /* Display qsets for all ports when offload enabled */
2244 if (test_bit(OFFLOAD_DEVMAP_BIT, &adapter->open_device_map)) {
2245 q1 = 0;
2246 for_each_port(adapter, i) {
2247 pi = adap2pinfo(adapter, i);
2248 nqsets = pi->first_qset + pi->nqsets;
2249 }
2250 }
2251
2252 if (t.qset_idx >= nqsets)
4d22de3e
DLR		 2253 return -EINVAL;
2254
8c263761 2255 q = &adapter->params.sge.qset[q1 + t.qset_idx];
4d22de3e
DLR		 2256 t.rspq_size = q->rspq_size;
2257 t.txq_size[0] = q->txq_size[0];
2258 t.txq_size[1] = q->txq_size[1];
2259 t.txq_size[2] = q->txq_size[2];
2260 t.fl_size[0] = q->fl_size;
2261 t.fl_size[1] = q->jumbo_size;
2262 t.polling = q->polling;
b47385bd 2263 t.lro = q->lro;
4d22de3e
DLR		 2264 t.intr_lat = q->coalesce_usecs;
2265 t.cong_thres = q->cong_thres;
8c263761
DLR		 2266 t.qnum = q1;
2267
2268 if (adapter->flags & USING_MSIX)
2269 t.vector = adapter->msix_info[q1 + t.qset_idx + 1].vec;
2270 else
2271 t.vector = adapter->pdev->irq;
4d22de3e
DLR		 2272
2273 if (copy_to_user(useraddr, &t, sizeof(t)))
2274 return -EFAULT;
2275 break;
2276 }
2277 case CHELSIO_SET_QSET_NUM:{
2278 struct ch_reg edata;
4d22de3e
DLR		 2279 unsigned int i, first_qset = 0, other_qsets = 0;
2280
2281 if (!capable(CAP_NET_ADMIN))
2282 return -EPERM;
2283 if (adapter->flags & FULL_INIT_DONE)
2284 return -EBUSY;
2285 if (copy_from_user(&edata, useraddr, sizeof(edata)))
2286 return -EFAULT;
2287 if (edata.val < 1 ||
2288 (edata.val > 1 && !(adapter->flags & USING_MSIX)))
2289 return -EINVAL;
2290
2291 for_each_port(adapter, i)
2292 if (adapter->port[i] && adapter->port[i] != dev)
2293 other_qsets += adap2pinfo(adapter, i)->nqsets;
2294
2295 if (edata.val + other_qsets > SGE_QSETS)
2296 return -EINVAL;
2297
2298 pi->nqsets = edata.val;
2299
2300 for_each_port(adapter, i)
2301 if (adapter->port[i]) {
2302 pi = adap2pinfo(adapter, i);
2303 pi->first_qset = first_qset;
2304 first_qset += pi->nqsets;
2305 }
2306 break;
2307 }
2308 case CHELSIO_GET_QSET_NUM:{
2309 struct ch_reg edata;
4d22de3e 2310
49c37c03
DR		 2311 memset(&edata, 0, sizeof(struct ch_reg));
2312
4d22de3e
DLR		 2313 edata.cmd = CHELSIO_GET_QSET_NUM;
2314 edata.val = pi->nqsets;
2315 if (copy_to_user(useraddr, &edata, sizeof(edata)))
2316 return -EFAULT;
2317 break;
2318 }
2319 case CHELSIO_LOAD_FW:{
2320 u8 *fw_data;
2321 struct ch_mem_range t;
2322
1b3aa7af 2323 if (!capable(CAP_SYS_RAWIO))
4d22de3e
DLR		 2324 return -EPERM;
2325 if (copy_from_user(&t, useraddr, sizeof(t)))
2326 return -EFAULT;
1b3aa7af 2327 /* Check t.len sanity ? */
c5dc9a35
JL		 2328 fw_data = memdup_user(useraddr + sizeof(t), t.len);
2329 if (IS_ERR(fw_data))
2330 return PTR_ERR(fw_data);
4d22de3e
DLR		 2331
2332 ret = t3_load_fw(adapter, fw_data, t.len);
2333 kfree(fw_data);
2334 if (ret)
2335 return ret;
2336 break;
2337 }
2338 case CHELSIO_SETMTUTAB:{
2339 struct ch_mtus m;
2340 int i;
2341
2342 if (!is_offload(adapter))
2343 return -EOPNOTSUPP;
2344 if (!capable(CAP_NET_ADMIN))
2345 return -EPERM;
2346 if (offload_running(adapter))
2347 return -EBUSY;
2348 if (copy_from_user(&m, useraddr, sizeof(m)))
2349 return -EFAULT;
2350 if (m.nmtus != NMTUS)
2351 return -EINVAL;
2352 if (m.mtus[0] < 81) /* accommodate SACK */
2353 return -EINVAL;
2354
2355 /* MTUs must be in ascending order */
2356 for (i = 1; i < NMTUS; ++i)
2357 if (m.mtus[i] < m.mtus[i - 1])
2358 return -EINVAL;
2359
2360 memcpy(adapter->params.mtus, m.mtus,
2361 sizeof(adapter->params.mtus));
2362 break;
2363 }
2364 case CHELSIO_GET_PM:{
2365 struct tp_params *p = &adapter->params.tp;
2366 struct ch_pm m = {.cmd = CHELSIO_GET_PM };
2367
2368 if (!is_offload(adapter))
2369 return -EOPNOTSUPP;
2370 m.tx_pg_sz = p->tx_pg_size;
2371 m.tx_num_pg = p->tx_num_pgs;
2372 m.rx_pg_sz = p->rx_pg_size;
2373 m.rx_num_pg = p->rx_num_pgs;
2374 m.pm_total = p->pmtx_size + p->chan_rx_size * p->nchan;
2375 if (copy_to_user(useraddr, &m, sizeof(m)))
2376 return -EFAULT;
2377 break;
2378 }
2379 case CHELSIO_SET_PM:{
2380 struct ch_pm m;
2381 struct tp_params *p = &adapter->params.tp;
2382
2383 if (!is_offload(adapter))
2384 return -EOPNOTSUPP;
2385 if (!capable(CAP_NET_ADMIN))
2386 return -EPERM;
2387 if (adapter->flags & FULL_INIT_DONE)
2388 return -EBUSY;
2389 if (copy_from_user(&m, useraddr, sizeof(m)))
2390 return -EFAULT;
d9da466a 2391 if (!is_power_of_2(m.rx_pg_sz) ||
2392 !is_power_of_2(m.tx_pg_sz))
4d22de3e
DLR		 2393 return -EINVAL; /* not power of 2 */
2394 if (!(m.rx_pg_sz & 0x14000))
2395 return -EINVAL; /* not 16KB or 64KB */
2396 if (!(m.tx_pg_sz & 0x1554000))
2397 return -EINVAL;
2398 if (m.tx_num_pg == -1)
2399 m.tx_num_pg = p->tx_num_pgs;
2400 if (m.rx_num_pg == -1)
2401 m.rx_num_pg = p->rx_num_pgs;
2402 if (m.tx_num_pg % 24 || m.rx_num_pg % 24)
2403 return -EINVAL;
2404 if (m.rx_num_pg * m.rx_pg_sz > p->chan_rx_size ||
2405 m.tx_num_pg * m.tx_pg_sz > p->chan_tx_size)
2406 return -EINVAL;
2407 p->rx_pg_size = m.rx_pg_sz;
2408 p->tx_pg_size = m.tx_pg_sz;
2409 p->rx_num_pgs = m.rx_num_pg;
2410 p->tx_num_pgs = m.tx_num_pg;
2411 break;
2412 }
2413 case CHELSIO_GET_MEM:{
2414 struct ch_mem_range t;
2415 struct mc7 *mem;
2416 u64 buf[32];
2417
2418 if (!is_offload(adapter))
2419 return -EOPNOTSUPP;
2420 if (!(adapter->flags & FULL_INIT_DONE))
2421 return -EIO; /* need the memory controllers */
2422 if (copy_from_user(&t, useraddr, sizeof(t)))
2423 return -EFAULT;
2424 if ((t.addr & 7) || (t.len & 7))
2425 return -EINVAL;
2426 if (t.mem_id == MEM_CM)
2427 mem = &adapter->cm;
2428 else if (t.mem_id == MEM_PMRX)
2429 mem = &adapter->pmrx;
2430 else if (t.mem_id == MEM_PMTX)
2431 mem = &adapter->pmtx;
2432 else
2433 return -EINVAL;
2434
2435 /*
1825494a
DLR		 2436 * Version scheme:
2437 * bits 0..9: chip version
2438 * bits 10..15: chip revision
2439 */
4d22de3e
DLR		 2440 t.version = 3 | (adapter->params.rev << 10);
2441 if (copy_to_user(useraddr, &t, sizeof(t)))
2442 return -EFAULT;
2443
2444 /*
2445 * Read 256 bytes at a time as len can be large and we don't
2446 * want to use huge intermediate buffers.
2447 */
2448 useraddr += sizeof(t); /* advance to start of buffer */
2449 while (t.len) {
2450 unsigned int chunk =
2451 min_t(unsigned int, t.len, sizeof(buf));
2452
2453 ret =
2454 t3_mc7_bd_read(mem, t.addr / 8, chunk / 8,
2455 buf);
2456 if (ret)
2457 return ret;
2458 if (copy_to_user(useraddr, buf, chunk))
2459 return -EFAULT;
2460 useraddr += chunk;
2461 t.addr += chunk;
2462 t.len -= chunk;
2463 }
2464 break;
2465 }
2466 case CHELSIO_SET_TRACE_FILTER:{
2467 struct ch_trace t;
2468 const struct trace_params *tp;
2469
2470 if (!capable(CAP_NET_ADMIN))
2471 return -EPERM;
2472 if (!offload_running(adapter))
2473 return -EAGAIN;
2474 if (copy_from_user(&t, useraddr, sizeof(t)))
2475 return -EFAULT;
2476
2477 tp = (const struct trace_params *)&t.sip;
2478 if (t.config_tx)
2479 t3_config_trace_filter(adapter, tp, 0,
2480 t.invert_match,
2481 t.trace_tx);
2482 if (t.config_rx)
2483 t3_config_trace_filter(adapter, tp, 1,
2484 t.invert_match,
2485 t.trace_rx);
2486 break;
2487 }
4d22de3e
DLR		 2488 default:
2489 return -EOPNOTSUPP;
2490 }
2491 return 0;
2492}
2493
2494static int cxgb_ioctl(struct net_device *dev, struct ifreq *req, int cmd)
2495{
4d22de3e 2496 struct mii_ioctl_data *data = if_mii(req);
5fbf816f
DLR		 2497 struct port_info *pi = netdev_priv(dev);
2498 struct adapter *adapter = pi->adapter;
4d22de3e
DLR		 2499
2500 switch (cmd) {
0f07c4ee
BH		 2501 case SIOCGMIIREG:
2502 case SIOCSMIIREG:
2503 /* Convert phy_id from older PRTAD/DEVAD format */
2504 if (is_10G(adapter) &&
2505 !mdio_phy_id_is_c45(data->phy_id) &&
2506 (data->phy_id & 0x1f00) &&
2507 !(data->phy_id & 0xe0e0))
2508 data->phy_id = mdio_phy_id_c45(data->phy_id >> 8,
2509 data->phy_id & 0x1f);
4d22de3e 2510 /* FALLTHRU */
0f07c4ee
BH		 2511 case SIOCGMIIPHY:
2512 return mdio_mii_ioctl(&pi->phy.mdio, data, cmd);
4d22de3e
DLR		 2513 case SIOCCHIOCTL:
2514 return cxgb_extension_ioctl(dev, req->ifr_data);
2515 default:
2516 return -EOPNOTSUPP;
2517 }
4d22de3e
DLR		 2518}
2519
2520static int cxgb_change_mtu(struct net_device *dev, int new_mtu)
2521{
4d22de3e 2522 struct port_info *pi = netdev_priv(dev);
5fbf816f
DLR		 2523 struct adapter *adapter = pi->adapter;
2524 int ret;
4d22de3e
DLR		 2525
2526 if (new_mtu < 81) /* accommodate SACK */
2527 return -EINVAL;
2528 if ((ret = t3_mac_set_mtu(&pi->mac, new_mtu)))
2529 return ret;
2530 dev->mtu = new_mtu;
2531 init_port_mtus(adapter);
2532 if (adapter->params.rev == 0 && offload_running(adapter))
2533 t3_load_mtus(adapter, adapter->params.mtus,
2534 adapter->params.a_wnd, adapter->params.b_wnd,
2535 adapter->port[0]->mtu);
2536 return 0;
2537}
2538
2539static int cxgb_set_mac_addr(struct net_device *dev, void *p)
2540{
4d22de3e 2541 struct port_info *pi = netdev_priv(dev);
5fbf816f 2542 struct adapter *adapter = pi->adapter;
4d22de3e
DLR		 2543 struct sockaddr *addr = p;
2544
2545 if (!is_valid_ether_addr(addr->sa_data))
2546 return -EINVAL;
2547
2548 memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
f14d42f3 2549 t3_mac_set_address(&pi->mac, LAN_MAC_IDX, dev->dev_addr);
4d22de3e
DLR		 2550 if (offload_running(adapter))
2551 write_smt_entry(adapter, pi->port_id);
2552 return 0;
2553}
2554
2555/**
2556 * t3_synchronize_rx - wait for current Rx processing on a port to complete
2557 * @adap: the adapter
2558 * @p: the port
2559 *
2560 * Ensures that current Rx processing on any of the queues associated with
2561 * the given port completes before returning. We do this by acquiring and
2562 * releasing the locks of the response queues associated with the port.
2563 */
2564static void t3_synchronize_rx(struct adapter *adap, const struct port_info *p)
2565{
2566 int i;
2567
8c263761
DLR		 2568 for (i = p->first_qset; i < p->first_qset + p->nqsets; i++) {
2569 struct sge_rspq *q = &adap->sge.qs[i].rspq;
4d22de3e
DLR		 2570
2571 spin_lock_irq(&q->lock);
2572 spin_unlock_irq(&q->lock);
2573 }
2574}
2575
2576static void vlan_rx_register(struct net_device *dev, struct vlan_group *grp)
2577{
4d22de3e 2578 struct port_info *pi = netdev_priv(dev);
5fbf816f 2579 struct adapter *adapter = pi->adapter;
4d22de3e
DLR		 2580
2581 pi->vlan_grp = grp;
2582 if (adapter->params.rev > 0)
2583 t3_set_vlan_accel(adapter, 1 << pi->port_id, grp != NULL);
2584 else {
2585 /* single control for all ports */
2586 unsigned int i, have_vlans = 0;
2587 for_each_port(adapter, i)
2588 have_vlans |= adap2pinfo(adapter, i)->vlan_grp != NULL;
2589
2590 t3_set_vlan_accel(adapter, 1, have_vlans);
2591 }
2592 t3_synchronize_rx(adapter, pi);
2593}
2594
4d22de3e
DLR		 2595#ifdef CONFIG_NET_POLL_CONTROLLER
2596static void cxgb_netpoll(struct net_device *dev)
2597{
890de332 2598 struct port_info *pi = netdev_priv(dev);
5fbf816f 2599 struct adapter *adapter = pi->adapter;
890de332 2600 int qidx;
4d22de3e 2601
890de332
DLR		 2602 for (qidx = pi->first_qset; qidx < pi->first_qset + pi->nqsets; qidx++) {
2603 struct sge_qset *qs = &adapter->sge.qs[qidx];
2604 void *source;
2eab17ab 2605
890de332
DLR		 2606 if (adapter->flags & USING_MSIX)
2607 source = qs;
2608 else
2609 source = adapter;
2610
2611 t3_intr_handler(adapter, qs->rspq.polling) (0, source);
2612 }
4d22de3e
DLR		 2613}
2614#endif
2615
2616/*
2617 * Periodic accumulation of MAC statistics.
2618 */
2619static void mac_stats_update(struct adapter *adapter)
2620{
2621 int i;
2622
2623 for_each_port(adapter, i) {
2624 struct net_device *dev = adapter->port[i];
2625 struct port_info *p = netdev_priv(dev);
2626
2627 if (netif_running(dev)) {
2628 spin_lock(&adapter->stats_lock);
2629 t3_mac_update_stats(&p->mac);
2630 spin_unlock(&adapter->stats_lock);
2631 }
2632 }
2633}
2634
2635static void check_link_status(struct adapter *adapter)
2636{
2637 int i;
2638
2639 for_each_port(adapter, i) {
2640 struct net_device *dev = adapter->port[i];
2641 struct port_info *p = netdev_priv(dev);
c22c8149 2642 int link_fault;
4d22de3e 2643
bf792094 2644 spin_lock_irq(&adapter->work_lock);
c22c8149
DLR		 2645 link_fault = p->link_fault;
2646 spin_unlock_irq(&adapter->work_lock);
2647
2648 if (link_fault) {
3851c66c 2649 t3_link_fault(adapter, i);
bf792094
DLR		 2650 continue;
2651 }
bf792094
DLR		 2652
2653 if (!(p->phy.caps & SUPPORTED_IRQ) && netif_running(dev)) {
2654 t3_xgm_intr_disable(adapter, i);
2655 t3_read_reg(adapter, A_XGM_INT_STATUS + p->mac.offset);
2656
4d22de3e 2657 t3_link_changed(adapter, i);
bf792094
DLR		 2658 t3_xgm_intr_enable(adapter, i);
2659 }
4d22de3e
DLR		 2660 }
2661}
2662
fc90664e
DLR		 2663static void check_t3b2_mac(struct adapter *adapter)
2664{
2665 int i;
2666
f2d961c9
DLR		 2667 if (!rtnl_trylock()) /* synchronize with ifdown */
2668 return;
2669
fc90664e
DLR		 2670 for_each_port(adapter, i) {
2671 struct net_device *dev = adapter->port[i];
2672 struct port_info *p = netdev_priv(dev);
2673 int status;
2674
2675 if (!netif_running(dev))
2676 continue;
2677
2678 status = 0;
6d6dabac 2679 if (netif_running(dev) && netif_carrier_ok(dev))
fc90664e
DLR		 2680 status = t3b2_mac_watchdog_task(&p->mac);
2681 if (status == 1)
2682 p->mac.stats.num_toggled++;
2683 else if (status == 2) {
2684 struct cmac *mac = &p->mac;
2685
2686 t3_mac_set_mtu(mac, dev->mtu);
f14d42f3 2687 t3_mac_set_address(mac, LAN_MAC_IDX, dev->dev_addr);
fc90664e
DLR		 2688 cxgb_set_rxmode(dev);
2689 t3_link_start(&p->phy, mac, &p->link_config);
2690 t3_mac_enable(mac, MAC_DIRECTION_RX | MAC_DIRECTION_TX);
2691 t3_port_intr_enable(adapter, p->port_id);
2692 p->mac.stats.num_resets++;
2693 }
2694 }
2695 rtnl_unlock();
2696}
2697
2698
4d22de3e
DLR		 2699static void t3_adap_check_task(struct work_struct *work)
2700{
2701 struct adapter *adapter = container_of(work, struct adapter,
2702 adap_check_task.work);
2703 const struct adapter_params *p = &adapter->params;
fc882196
DLR		 2704 int port;
2705 unsigned int v, status, reset;
4d22de3e
DLR		 2706
2707 adapter->check_task_cnt++;
2708
3851c66c 2709 check_link_status(adapter);
4d22de3e
DLR		 2710
2711 /* Accumulate MAC stats if needed */
2712 if (!p->linkpoll_period ||
2713 (adapter->check_task_cnt * p->linkpoll_period) / 10 >=
2714 p->stats_update_period) {
2715 mac_stats_update(adapter);
2716 adapter->check_task_cnt = 0;
2717 }
2718
fc90664e
DLR		 2719 if (p->rev == T3_REV_B2)
2720 check_t3b2_mac(adapter);
2721
fc882196
DLR		 2722 /*
2723 * Scan the XGMAC's to check for various conditions which we want to
2724 * monitor in a periodic polling manner rather than via an interrupt
2725 * condition. This is used for conditions which would otherwise flood
2726 * the system with interrupts and we only really need to know that the
2727 * conditions are "happening" ... For each condition we count the
2728 * detection of the condition and reset it for the next polling loop.
2729 */
2730 for_each_port(adapter, port) {
2731 struct cmac *mac = &adap2pinfo(adapter, port)->mac;
2732 u32 cause;
2733
2734 cause = t3_read_reg(adapter, A_XGM_INT_CAUSE + mac->offset);
2735 reset = 0;
2736 if (cause & F_RXFIFO_OVERFLOW) {
2737 mac->stats.rx_fifo_ovfl++;
2738 reset |= F_RXFIFO_OVERFLOW;
2739 }
2740
2741 t3_write_reg(adapter, A_XGM_INT_CAUSE + mac->offset, reset);
2742 }
2743
2744 /*
2745 * We do the same as above for FL_EMPTY interrupts.
2746 */
2747 status = t3_read_reg(adapter, A_SG_INT_CAUSE);
2748 reset = 0;
2749
2750 if (status & F_FLEMPTY) {
2751 struct sge_qset *qs = &adapter->sge.qs[0];
2752 int i = 0;
2753
2754 reset |= F_FLEMPTY;
2755
2756 v = (t3_read_reg(adapter, A_SG_RSPQ_FL_STATUS) >> S_FL0EMPTY) &
2757 0xffff;
2758
2759 while (v) {
2760 qs->fl[i].empty += (v & 1);
2761 if (i)
2762 qs++;
2763 i ^= 1;
2764 v >>= 1;
2765 }
2766 }
2767
2768 t3_write_reg(adapter, A_SG_INT_CAUSE, reset);
2769
4d22de3e 2770 /* Schedule the next check update if any port is active. */
20d3fc11 2771 spin_lock_irq(&adapter->work_lock);
4d22de3e
DLR		 2772 if (adapter->open_device_map & PORT_MASK)
2773 schedule_chk_task(adapter);
20d3fc11 2774 spin_unlock_irq(&adapter->work_lock);
4d22de3e
DLR		 2775}
2776
e998f245
SW		 2777static void db_full_task(struct work_struct *work)
2778{
2779 struct adapter *adapter = container_of(work, struct adapter,
2780 db_full_task);
2781
2782 cxgb3_event_notify(&adapter->tdev, OFFLOAD_DB_FULL, 0);
2783}
2784
2785static void db_empty_task(struct work_struct *work)
2786{
2787 struct adapter *adapter = container_of(work, struct adapter,
2788 db_empty_task);
2789
2790 cxgb3_event_notify(&adapter->tdev, OFFLOAD_DB_EMPTY, 0);
2791}
2792
2793static void db_drop_task(struct work_struct *work)
2794{
2795 struct adapter *adapter = container_of(work, struct adapter,
2796 db_drop_task);
2797 unsigned long delay = 1000;
2798 unsigned short r;
2799
2800 cxgb3_event_notify(&adapter->tdev, OFFLOAD_DB_DROP, 0);
2801
2802 /*
2803 * Sleep a while before ringing the driver qset dbs.
2804 * The delay is between 1000-2023 usecs.
2805 */
2806 get_random_bytes(&r, 2);
2807 delay += r & 1023;
2808 set_current_state(TASK_UNINTERRUPTIBLE);
2809 schedule_timeout(usecs_to_jiffies(delay));
2810 ring_dbs(adapter);
2811}
2812
4d22de3e
DLR		 2813/*
2814 * Processes external (PHY) interrupts in process context.
2815 */
2816static void ext_intr_task(struct work_struct *work)
2817{
2818 struct adapter *adapter = container_of(work, struct adapter,
2819 ext_intr_handler_task);
bf792094
DLR		 2820 int i;
2821
2822 /* Disable link fault interrupts */
2823 for_each_port(adapter, i) {
2824 struct net_device *dev = adapter->port[i];
2825 struct port_info *p = netdev_priv(dev);
2826
2827 t3_xgm_intr_disable(adapter, i);
2828 t3_read_reg(adapter, A_XGM_INT_STATUS + p->mac.offset);
2829 }
4d22de3e 2830
bf792094 2831 /* Re-enable link fault interrupts */
4d22de3e
DLR		 2832 t3_phy_intr_handler(adapter);
2833
bf792094
DLR		 2834 for_each_port(adapter, i)
2835 t3_xgm_intr_enable(adapter, i);
2836
4d22de3e
DLR		 2837 /* Now reenable external interrupts */
2838 spin_lock_irq(&adapter->work_lock);
2839 if (adapter->slow_intr_mask) {
2840 adapter->slow_intr_mask |= F_T3DBG;
2841 t3_write_reg(adapter, A_PL_INT_CAUSE0, F_T3DBG);
2842 t3_write_reg(adapter, A_PL_INT_ENABLE0,
2843 adapter->slow_intr_mask);
2844 }
2845 spin_unlock_irq(&adapter->work_lock);
2846}
2847
2848/*
2849 * Interrupt-context handler for external (PHY) interrupts.
2850 */
2851void t3_os_ext_intr_handler(struct adapter *adapter)
2852{
2853 /*
2854 * Schedule a task to handle external interrupts as they may be slow
2855 * and we use a mutex to protect MDIO registers. We disable PHY
2856 * interrupts in the meantime and let the task reenable them when
2857 * it's done.
2858 */
2859 spin_lock(&adapter->work_lock);
2860 if (adapter->slow_intr_mask) {
2861 adapter->slow_intr_mask &= ~F_T3DBG;
2862 t3_write_reg(adapter, A_PL_INT_ENABLE0,
2863 adapter->slow_intr_mask);
2864 queue_work(cxgb3_wq, &adapter->ext_intr_handler_task);
2865 }
2866 spin_unlock(&adapter->work_lock);
2867}
2868
bf792094
DLR		 2869void t3_os_link_fault_handler(struct adapter *adapter, int port_id)
2870{
2871 struct net_device *netdev = adapter->port[port_id];
2872 struct port_info *pi = netdev_priv(netdev);
2873
2874 spin_lock(&adapter->work_lock);
2875 pi->link_fault = 1;
bf792094
DLR		 2876 spin_unlock(&adapter->work_lock);
2877}
2878
55bc3228 2879static int t3_adapter_error(struct adapter *adapter, int reset, int on_wq)
20d3fc11
DLR		 2880{
2881 int i, ret = 0;
2882
cb0bc205
DLR		 2883 if (is_offload(adapter) &&
2884 test_bit(OFFLOAD_DEVMAP_BIT, &adapter->open_device_map)) {
fa0d4c11 2885 cxgb3_event_notify(&adapter->tdev, OFFLOAD_STATUS_DOWN, 0);
cb0bc205
DLR		 2886 offload_close(&adapter->tdev);
2887 }
2888
20d3fc11
DLR		 2889 /* Stop all ports */
2890 for_each_port(adapter, i) {
2891 struct net_device *netdev = adapter->port[i];
2892
2893 if (netif_running(netdev))
55bc3228 2894 __cxgb_close(netdev, on_wq);
20d3fc11
DLR		 2895 }
2896
20d3fc11
DLR		 2897 /* Stop SGE timers */
2898 t3_stop_sge_timers(adapter);
2899
2900 adapter->flags &= ~FULL_INIT_DONE;
2901
2902 if (reset)
2903 ret = t3_reset_adapter(adapter);
2904
2905 pci_disable_device(adapter->pdev);
2906
2907 return ret;
2908}
2909
2910static int t3_reenable_adapter(struct adapter *adapter)
2911{
2912 if (pci_enable_device(adapter->pdev)) {
2913 dev_err(&adapter->pdev->dev,
2914 "Cannot re-enable PCI device after reset.\n");
2915 goto err;
2916 }
2917 pci_set_master(adapter->pdev);
2918 pci_restore_state(adapter->pdev);
ccdddf50 2919 pci_save_state(adapter->pdev);
20d3fc11
DLR		 2920
2921 /* Free sge resources */
2922 t3_free_sge_resources(adapter);
2923
2924 if (t3_replay_prep_adapter(adapter))
2925 goto err;
2926
2927 return 0;
2928err:
2929 return -1;
2930}
2931
2932static void t3_resume_ports(struct adapter *adapter)
2933{
2934 int i;
2935
2936 /* Restart the ports */
2937 for_each_port(adapter, i) {
2938 struct net_device *netdev = adapter->port[i];
2939
2940 if (netif_running(netdev)) {
2941 if (cxgb_open(netdev)) {
2942 dev_err(&adapter->pdev->dev,
2943 "can't bring device back up"
2944 " after reset\n");
2945 continue;
2946 }
2947 }
2948 }
cb0bc205
DLR		 2949
2950 if (is_offload(adapter) && !ofld_disable)
fa0d4c11 2951 cxgb3_event_notify(&adapter->tdev, OFFLOAD_STATUS_UP, 0);
20d3fc11
DLR		 2952}
2953
2954/*
2955 * processes a fatal error.
2956 * Bring the ports down, reset the chip, bring the ports back up.
2957 */
2958static void fatal_error_task(struct work_struct *work)
2959{
2960 struct adapter *adapter = container_of(work, struct adapter,
2961 fatal_error_handler_task);
2962 int err = 0;
2963
2964 rtnl_lock();
55bc3228 2965 err = t3_adapter_error(adapter, 1, 1);
20d3fc11
DLR		 2966 if (!err)
2967 err = t3_reenable_adapter(adapter);
2968 if (!err)
2969 t3_resume_ports(adapter);
2970
2971 CH_ALERT(adapter, "adapter reset %s\n", err ? "failed" : "succeeded");
2972 rtnl_unlock();
2973}
2974
4d22de3e
DLR		 2975void t3_fatal_err(struct adapter *adapter)
2976{
2977 unsigned int fw_status[4];
2978
2979 if (adapter->flags & FULL_INIT_DONE) {
2980 t3_sge_stop(adapter);
c64c2eae
DLR		 2981 t3_write_reg(adapter, A_XGM_TX_CTRL, 0);
2982 t3_write_reg(adapter, A_XGM_RX_CTRL, 0);
2983 t3_write_reg(adapter, XGM_REG(A_XGM_TX_CTRL, 1), 0);
2984 t3_write_reg(adapter, XGM_REG(A_XGM_RX_CTRL, 1), 0);
20d3fc11
DLR		 2985
2986 spin_lock(&adapter->work_lock);
4d22de3e 2987 t3_intr_disable(adapter);
20d3fc11
DLR		 2988 queue_work(cxgb3_wq, &adapter->fatal_error_handler_task);
2989 spin_unlock(&adapter->work_lock);
4d22de3e
DLR		 2990 }
2991 CH_ALERT(adapter, "encountered fatal error, operation suspended\n");
2992 if (!t3_cim_ctl_blk_read(adapter, 0xa0, 4, fw_status))
2993 CH_ALERT(adapter, "FW status: 0x%x, 0x%x, 0x%x, 0x%x\n",
2994 fw_status[0], fw_status[1],
2995 fw_status[2], fw_status[3]);
4d22de3e
DLR		 2996}
2997
91a6b50c
DLR		 2998/**
2999 * t3_io_error_detected - called when PCI error is detected
3000 * @pdev: Pointer to PCI device
3001 * @state: The current pci connection state
3002 *
3003 * This function is called after a PCI bus error affecting
3004 * this device has been detected.
3005 */
3006static pci_ers_result_t t3_io_error_detected(struct pci_dev *pdev,
3007 pci_channel_state_t state)
3008{
bc4b6b52 3009 struct adapter *adapter = pci_get_drvdata(pdev);
91a6b50c 3010
e8d19370
DLR		 3011 if (state == pci_channel_io_perm_failure)
3012 return PCI_ERS_RESULT_DISCONNECT;
3013
c661c4a2 3014 t3_adapter_error(adapter, 0, 0);
91a6b50c 3015
48c4b6db 3016 /* Request a slot reset. */
91a6b50c
DLR		 3017 return PCI_ERS_RESULT_NEED_RESET;
3018}
3019
3020/**
3021 * t3_io_slot_reset - called after the pci bus has been reset.
3022 * @pdev: Pointer to PCI device
3023 *
3024 * Restart the card from scratch, as if from a cold-boot.
3025 */
3026static pci_ers_result_t t3_io_slot_reset(struct pci_dev *pdev)
3027{
bc4b6b52 3028 struct adapter *adapter = pci_get_drvdata(pdev);
91a6b50c 3029
20d3fc11
DLR		 3030 if (!t3_reenable_adapter(adapter))
3031 return PCI_ERS_RESULT_RECOVERED;
91a6b50c 3032
48c4b6db 3033 return PCI_ERS_RESULT_DISCONNECT;
91a6b50c
DLR		 3034}
3035
3036/**
3037 * t3_io_resume - called when traffic can start flowing again.
3038 * @pdev: Pointer to PCI device
3039 *
3040 * This callback is called when the error recovery driver tells us that
3041 * its OK to resume normal operation.
3042 */
3043static void t3_io_resume(struct pci_dev *pdev)
3044{
bc4b6b52 3045 struct adapter *adapter = pci_get_drvdata(pdev);
91a6b50c 3046
68f40c10
DLR		 3047 CH_ALERT(adapter, "adapter recovering, PEX ERR 0x%x\n",
3048 t3_read_reg(adapter, A_PCIE_PEX_ERR));
3049
20d3fc11 3050 t3_resume_ports(adapter);
91a6b50c
DLR		 3051}
3052
3053static struct pci_error_handlers t3_err_handler = {
3054 .error_detected = t3_io_error_detected,
3055 .slot_reset = t3_io_slot_reset,
3056 .resume = t3_io_resume,
3057};
3058
8c263761
DLR		 3059/*
3060 * Set the number of qsets based on the number of CPUs and the number of ports,
3061 * not to exceed the number of available qsets, assuming there are enough qsets
3062 * per port in HW.
3063 */
3064static void set_nqsets(struct adapter *adap)
3065{
3066 int i, j = 0;
3067 int num_cpus = num_online_cpus();
3068 int hwports = adap->params.nports;
5cda9364 3069 int nqsets = adap->msix_nvectors - 1;
8c263761 3070
f9ee3882 3071 if (adap->params.rev > 0 && adap->flags & USING_MSIX) {
8c263761
DLR		 3072 if (hwports == 2 &&
3073 (hwports * nqsets > SGE_QSETS ||
3074 num_cpus >= nqsets / hwports))
3075 nqsets /= hwports;
3076 if (nqsets > num_cpus)
3077 nqsets = num_cpus;
3078 if (nqsets < 1 || hwports == 4)
3079 nqsets = 1;
3080 } else
3081 nqsets = 1;
3082
3083 for_each_port(adap, i) {
3084 struct port_info *pi = adap2pinfo(adap, i);
3085
3086 pi->first_qset = j;
3087 pi->nqsets = nqsets;
3088 j = pi->first_qset + nqsets;
3089
3090 dev_info(&adap->pdev->dev,
3091 "Port %d using %d queue sets.\n", i, nqsets);
3092 }
3093}
3094
4d22de3e
DLR		 3095static int __devinit cxgb_enable_msix(struct adapter *adap)
3096{
3097 struct msix_entry entries[SGE_QSETS + 1];
5cda9364 3098 int vectors;
4d22de3e
DLR		 3099 int i, err;
3100
5cda9364
DLR		 3101 vectors = ARRAY_SIZE(entries);
3102 for (i = 0; i < vectors; ++i)
4d22de3e
DLR		 3103 entries[i].entry = i;
3104
5cda9364
DLR		 3105 while ((err = pci_enable_msix(adap->pdev, entries, vectors)) > 0)
3106 vectors = err;
3107
2c2f409f
DLR		 3108 if (err < 0)
3109 pci_disable_msix(adap->pdev);
3110
3111 if (!err && vectors < (adap->params.nports + 1)) {
3112 pci_disable_msix(adap->pdev);
5cda9364 3113 err = -1;
2c2f409f 3114 }
5cda9364 3115
4d22de3e 3116 if (!err) {
5cda9364 3117 for (i = 0; i < vectors; ++i)
4d22de3e 3118 adap->msix_info[i].vec = entries[i].vector;
5cda9364
DLR		 3119 adap->msix_nvectors = vectors;
3120 }
3121
4d22de3e
DLR		 3122 return err;
3123}
3124
3125static void __devinit print_port_info(struct adapter *adap,
3126 const struct adapter_info *ai)
3127{
3128 static const char *pci_variant[] = {
3129 "PCI", "PCI-X", "PCI-X ECC", "PCI-X 266", "PCI Express"
3130 };
3131
3132 int i;
3133 char buf[80];
3134
3135 if (is_pcie(adap))
3136 snprintf(buf, sizeof(buf), "%s x%d",
3137 pci_variant[adap->params.pci.variant],
3138 adap->params.pci.width);
3139 else
3140 snprintf(buf, sizeof(buf), "%s %dMHz/%d-bit",
3141 pci_variant[adap->params.pci.variant],
3142 adap->params.pci.speed, adap->params.pci.width);
3143
3144 for_each_port(adap, i) {
3145 struct net_device *dev = adap->port[i];
3146 const struct port_info *pi = netdev_priv(dev);
3147
3148 if (!test_bit(i, &adap->registered_device_map))
3149 continue;
8ac3ba68 3150 printk(KERN_INFO "%s: %s %s %sNIC (rev %d) %s%s\n",
04497982 3151 dev->name, ai->desc, pi->phy.desc,
8ac3ba68 3152 is_offload(adap) ? "R" : "", adap->params.rev, buf,
4d22de3e
DLR		 3153 (adap->flags & USING_MSIX) ? " MSI-X" :
3154 (adap->flags & USING_MSI) ? " MSI" : "");
3155 if (adap->name == dev->name && adap->params.vpd.mclk)
167cdf5f
DLR		 3156 printk(KERN_INFO
3157 "%s: %uMB CM, %uMB PMTX, %uMB PMRX, S/N: %s\n",
4d22de3e
DLR		 3158 adap->name, t3_mc7_size(&adap->cm) >> 20,
3159 t3_mc7_size(&adap->pmtx) >> 20,
167cdf5f
DLR		 3160 t3_mc7_size(&adap->pmrx) >> 20,
3161 adap->params.vpd.sn);
4d22de3e
DLR		 3162 }
3163}
3164
dd752696
SH		 3165static const struct net_device_ops cxgb_netdev_ops = {
3166 .ndo_open = cxgb_open,
3167 .ndo_stop = cxgb_close,
43a944f3 3168 .ndo_start_xmit = t3_eth_xmit,
dd752696
SH		 3169 .ndo_get_stats = cxgb_get_stats,
3170 .ndo_validate_addr = eth_validate_addr,
3171 .ndo_set_multicast_list = cxgb_set_rxmode,
3172 .ndo_do_ioctl = cxgb_ioctl,
3173 .ndo_change_mtu = cxgb_change_mtu,
3174 .ndo_set_mac_address = cxgb_set_mac_addr,
3175 .ndo_vlan_rx_register = vlan_rx_register,
3176#ifdef CONFIG_NET_POLL_CONTROLLER
3177 .ndo_poll_controller = cxgb_netpoll,
3178#endif
3179};
3180
f14d42f3
KX		 3181static void __devinit cxgb3_init_iscsi_mac(struct net_device *dev)
3182{
3183 struct port_info *pi = netdev_priv(dev);
3184
3185 memcpy(pi->iscsic.mac_addr, dev->dev_addr, ETH_ALEN);
3186 pi->iscsic.mac_addr[3] |= 0x80;
3187}
3188
4d22de3e
DLR		 3189static int __devinit init_one(struct pci_dev *pdev,
3190 const struct pci_device_id *ent)
3191{
3192 static int version_printed;
3193
3194 int i, err, pci_using_dac = 0;
68f40c10 3195 resource_size_t mmio_start, mmio_len;
4d22de3e
DLR		 3196 const struct adapter_info *ai;
3197 struct adapter *adapter = NULL;
3198 struct port_info *pi;
3199
3200 if (!version_printed) {
3201 printk(KERN_INFO "%s - version %s\n", DRV_DESC, DRV_VERSION);
3202 ++version_printed;
3203 }
3204
3205 if (!cxgb3_wq) {
3206 cxgb3_wq = create_singlethread_workqueue(DRV_NAME);
3207 if (!cxgb3_wq) {
3208 printk(KERN_ERR DRV_NAME
3209 ": cannot initialize work queue\n");
3210 return -ENOMEM;
3211 }
3212 }
3213
7aaaaa1e 3214 err = pci_enable_device(pdev);
4d22de3e 3215 if (err) {
7aaaaa1e
KV		 3216 dev_err(&pdev->dev, "cannot enable PCI device\n");
3217 goto out;
4d22de3e
DLR		 3218 }
3219
7aaaaa1e 3220 err = pci_request_regions(pdev, DRV_NAME);
4d22de3e 3221 if (err) {
7aaaaa1e
KV		 3222 /* Just info, some other driver may have claimed the device. */
3223 dev_info(&pdev->dev, "cannot obtain PCI resources\n");
3224 goto out_disable_device;
4d22de3e
DLR		 3225 }
3226
6a35528a 3227 if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64))) {
4d22de3e 3228 pci_using_dac = 1;
6a35528a 3229 err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64));
4d22de3e
DLR		 3230 if (err) {
3231 dev_err(&pdev->dev, "unable to obtain 64-bit DMA for "
3232 "coherent allocations\n");
7aaaaa1e 3233 goto out_release_regions;
4d22de3e 3234 }
284901a9 3235 } else if ((err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32))) != 0) {
4d22de3e 3236 dev_err(&pdev->dev, "no usable DMA configuration\n");
7aaaaa1e 3237 goto out_release_regions;
4d22de3e
DLR		 3238 }
3239
3240 pci_set_master(pdev);
204e2f98 3241 pci_save_state(pdev);
4d22de3e
DLR		 3242
3243 mmio_start = pci_resource_start(pdev, 0);
3244 mmio_len = pci_resource_len(pdev, 0);
3245 ai = t3_get_adapter_info(ent->driver_data);
3246
3247 adapter = kzalloc(sizeof(*adapter), GFP_KERNEL);
3248 if (!adapter) {
3249 err = -ENOMEM;
7aaaaa1e 3250 goto out_release_regions;
4d22de3e
DLR		 3251 }
3252
74b793e1
DLR		 3253 adapter->nofail_skb =
3254 alloc_skb(sizeof(struct cpl_set_tcb_field), GFP_KERNEL);
3255 if (!adapter->nofail_skb) {
3256 dev_err(&pdev->dev, "cannot allocate nofail buffer\n");
3257 err = -ENOMEM;
3258 goto out_free_adapter;
3259 }
3260
4d22de3e
DLR		 3261 adapter->regs = ioremap_nocache(mmio_start, mmio_len);
3262 if (!adapter->regs) {
3263 dev_err(&pdev->dev, "cannot map device registers\n");
3264 err = -ENOMEM;
3265 goto out_free_adapter;
3266 }
3267
3268 adapter->pdev = pdev;
3269 adapter->name = pci_name(pdev);
3270 adapter->msg_enable = dflt_msg_enable;
3271 adapter->mmio_len = mmio_len;
3272
3273 mutex_init(&adapter->mdio_lock);
3274 spin_lock_init(&adapter->work_lock);
3275 spin_lock_init(&adapter->stats_lock);
3276
3277 INIT_LIST_HEAD(&adapter->adapter_list);
3278 INIT_WORK(&adapter->ext_intr_handler_task, ext_intr_task);
20d3fc11 3279 INIT_WORK(&adapter->fatal_error_handler_task, fatal_error_task);
e998f245
SW		 3280
3281 INIT_WORK(&adapter->db_full_task, db_full_task);
3282 INIT_WORK(&adapter->db_empty_task, db_empty_task);
3283 INIT_WORK(&adapter->db_drop_task, db_drop_task);
3284
4d22de3e
DLR		 3285 INIT_DELAYED_WORK(&adapter->adap_check_task, t3_adap_check_task);
3286
952cdf33 3287 for (i = 0; i < ai->nports0 + ai->nports1; ++i) {
4d22de3e
DLR		 3288 struct net_device *netdev;
3289
82ad3329 3290 netdev = alloc_etherdev_mq(sizeof(struct port_info), SGE_QSETS);
4d22de3e
DLR		 3291 if (!netdev) {
3292 err = -ENOMEM;
3293 goto out_free_dev;
3294 }
3295
4d22de3e
DLR		 3296 SET_NETDEV_DEV(netdev, &pdev->dev);
3297
3298 adapter->port[i] = netdev;
3299 pi = netdev_priv(netdev);
5fbf816f 3300 pi->adapter = adapter;
47fd23fe 3301 pi->rx_offload = T3_RX_CSUM | T3_LRO;
4d22de3e
DLR		 3302 pi->port_id = i;
3303 netif_carrier_off(netdev);
3304 netdev->irq = pdev->irq;
3305 netdev->mem_start = mmio_start;
3306 netdev->mem_end = mmio_start + mmio_len - 1;
4d22de3e 3307 netdev->features |= NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO;
7be2df45 3308 netdev->features |= NETIF_F_GRO;
4d22de3e
DLR		 3309 if (pci_using_dac)
3310 netdev->features |= NETIF_F_HIGHDMA;
3311
3312 netdev->features |= NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX;
dd752696 3313 netdev->netdev_ops = &cxgb_netdev_ops;
4d22de3e
DLR		 3314 SET_ETHTOOL_OPS(netdev, &cxgb_ethtool_ops);
3315 }
3316
5fbf816f 3317 pci_set_drvdata(pdev, adapter);
4d22de3e
DLR		 3318 if (t3_prep_adapter(adapter, ai, 1) < 0) {
3319 err = -ENODEV;
3320 goto out_free_dev;
3321 }
2eab17ab 3322
4d22de3e
DLR		 3323 /*
3324 * The card is now ready to go. If any errors occur during device
3325 * registration we do not fail the whole card but rather proceed only
3326 * with the ports we manage to register successfully. However we must
3327 * register at least one net device.
3328 */
3329 for_each_port(adapter, i) {
3330 err = register_netdev(adapter->port[i]);
3331 if (err)
3332 dev_warn(&pdev->dev,
3333 "cannot register net device %s, skipping\n",
3334 adapter->port[i]->name);
3335 else {
3336 /*
3337 * Change the name we use for messages to the name of
3338 * the first successfully registered interface.
3339 */
3340 if (!adapter->registered_device_map)
3341 adapter->name = adapter->port[i]->name;
3342
3343 __set_bit(i, &adapter->registered_device_map);
3344 }
3345 }
3346 if (!adapter->registered_device_map) {
3347 dev_err(&pdev->dev, "could not register any net devices\n");
3348 goto out_free_dev;
3349 }
3350
f14d42f3
KX		 3351 for_each_port(adapter, i)
3352 cxgb3_init_iscsi_mac(adapter->port[i]);
3353
4d22de3e
DLR		 3354 /* Driver's ready. Reflect it on LEDs */
3355 t3_led_ready(adapter);
3356
3357 if (is_offload(adapter)) {
3358 __set_bit(OFFLOAD_DEVMAP_BIT, &adapter->registered_device_map);
3359 cxgb3_adapter_ofld(adapter);
3360 }
3361
3362 /* See what interrupts we'll be using */
3363 if (msi > 1 && cxgb_enable_msix(adapter) == 0)
3364 adapter->flags |= USING_MSIX;
3365 else if (msi > 0 && pci_enable_msi(pdev) == 0)
3366 adapter->flags |= USING_MSI;
3367
8c263761
DLR		 3368 set_nqsets(adapter);
3369
0ee8d33c 3370 err = sysfs_create_group(&adapter->port[0]->dev.kobj,
4d22de3e
DLR		 3371 &cxgb3_attr_group);
3372
3373 print_port_info(adapter, ai);
3374 return 0;
3375
3376out_free_dev:
3377 iounmap(adapter->regs);
952cdf33 3378 for (i = ai->nports0 + ai->nports1 - 1; i >= 0; --i)
4d22de3e
DLR		 3379 if (adapter->port[i])
3380 free_netdev(adapter->port[i]);
3381
3382out_free_adapter:
3383 kfree(adapter);
3384
4d22de3e
DLR		 3385out_release_regions:
3386 pci_release_regions(pdev);
7aaaaa1e
KV		 3387out_disable_device:
3388 pci_disable_device(pdev);
4d22de3e 3389 pci_set_drvdata(pdev, NULL);
7aaaaa1e 3390out:
4d22de3e
DLR		 3391 return err;
3392}
3393
3394static void __devexit remove_one(struct pci_dev *pdev)
3395{
5fbf816f 3396 struct adapter *adapter = pci_get_drvdata(pdev);
4d22de3e 3397
5fbf816f 3398 if (adapter) {
4d22de3e 3399 int i;
4d22de3e
DLR		 3400
3401 t3_sge_stop(adapter);
0ee8d33c 3402 sysfs_remove_group(&adapter->port[0]->dev.kobj,
4d22de3e
DLR		 3403 &cxgb3_attr_group);
3404
4d22de3e
DLR		 3405 if (is_offload(adapter)) {
3406 cxgb3_adapter_unofld(adapter);
3407 if (test_bit(OFFLOAD_DEVMAP_BIT,
3408 &adapter->open_device_map))
3409 offload_close(&adapter->tdev);
3410 }
3411
67d92ab7
DLR		 3412 for_each_port(adapter, i)
3413 if (test_bit(i, &adapter->registered_device_map))
3414 unregister_netdev(adapter->port[i]);
3415
0ca41c04 3416 t3_stop_sge_timers(adapter);
4d22de3e
DLR		 3417 t3_free_sge_resources(adapter);
3418 cxgb_disable_msi(adapter);
3419
4d22de3e
DLR		 3420 for_each_port(adapter, i)
3421 if (adapter->port[i])
3422 free_netdev(adapter->port[i]);
3423
3424 iounmap(adapter->regs);
74b793e1
DLR		 3425 if (adapter->nofail_skb)
3426 kfree_skb(adapter->nofail_skb);
4d22de3e
DLR		 3427 kfree(adapter);
3428 pci_release_regions(pdev);
3429 pci_disable_device(pdev);
3430 pci_set_drvdata(pdev, NULL);
3431 }
3432}
3433
3434static struct pci_driver driver = {
3435 .name = DRV_NAME,
3436 .id_table = cxgb3_pci_tbl,
3437 .probe = init_one,
3438 .remove = __devexit_p(remove_one),
91a6b50c 3439 .err_handler = &t3_err_handler,
4d22de3e
DLR		 3440};
3441
3442static int __init cxgb3_init_module(void)
3443{
3444 int ret;
3445
3446 cxgb3_offload_init();
3447
3448 ret = pci_register_driver(&driver);
3449 return ret;
3450}
3451
3452static void __exit cxgb3_cleanup_module(void)
3453{
3454 pci_unregister_driver(&driver);
3455 if (cxgb3_wq)
3456 destroy_workqueue(cxgb3_wq);
3457}
3458
3459module_init(cxgb3_init_module);
3460module_exit(cxgb3_cleanup_module);
Linux 6.x block layer and io_uring tree(s)