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libertas: fixes for slow hardware
[linux-2.6/openmoko-kernel/knife-kernel.git] / drivers / net / cxgb3 / cxgb3_main.c
blob61ffc925eae777b065c37dea73c9b938e49ccd8e
1 /*
2 * Copyright (c) 2003-2007 Chelsio, Inc. All rights reserved.
3 *
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:
9 *
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.
31 */
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>
40 #include <linux/mii.h>
41 #include <linux/sockios.h>
42 #include <linux/workqueue.h>
43 #include <linux/proc_fs.h>
44 #include <linux/rtnetlink.h>
45 #include <linux/firmware.h>
46 #include <linux/log2.h>
47 #include <asm/uaccess.h>
48
49 #include "common.h"
50 #include "cxgb3_ioctl.h"
51 #include "regs.h"
52 #include "cxgb3_offload.h"
53 #include "version.h"
54
55 #include "cxgb3_ctl_defs.h"
56 #include "t3_cpl.h"
57 #include "firmware_exports.h"
58
59 enum {
60 MAX_TXQ_ENTRIES = 16384,
61 MAX_CTRL_TXQ_ENTRIES = 1024,
62 MAX_RSPQ_ENTRIES = 16384,
63 MAX_RX_BUFFERS = 16384,
64 MAX_RX_JUMBO_BUFFERS = 16384,
65 MIN_TXQ_ENTRIES = 4,
66 MIN_CTRL_TXQ_ENTRIES = 4,
67 MIN_RSPQ_ENTRIES = 32,
68 MIN_FL_ENTRIES = 32
69 };
70
71 #define PORT_MASK ((1 << MAX_NPORTS) - 1)
72
73 #define DFLT_MSG_ENABLE (NETIF_MSG_DRV | NETIF_MSG_PROBE | NETIF_MSG_LINK | \
74 NETIF_MSG_TIMER | NETIF_MSG_IFDOWN | NETIF_MSG_IFUP |\
75 NETIF_MSG_RX_ERR | NETIF_MSG_TX_ERR)
76
77 #define EEPROM_MAGIC 0x38E2F10C
78
79 #define CH_DEVICE(devid, ssid, idx) \
80 { PCI_VENDOR_ID_CHELSIO, devid, PCI_ANY_ID, ssid, 0, 0, idx }
81
82 static const struct pci_device_id cxgb3_pci_tbl[] = {
83 CH_DEVICE(0x20, 1, 0), /* PE9000 */
84 CH_DEVICE(0x21, 1, 1), /* T302E */
85 CH_DEVICE(0x22, 1, 2), /* T310E */
86 CH_DEVICE(0x23, 1, 3), /* T320X */
87 CH_DEVICE(0x24, 1, 1), /* T302X */
88 CH_DEVICE(0x25, 1, 3), /* T320E */
89 CH_DEVICE(0x26, 1, 2), /* T310X */
90 CH_DEVICE(0x30, 1, 2), /* T3B10 */
91 CH_DEVICE(0x31, 1, 3), /* T3B20 */
92 CH_DEVICE(0x32, 1, 1), /* T3B02 */
93 {0,}
94 };
95
96 MODULE_DESCRIPTION(DRV_DESC);
97 MODULE_AUTHOR("Chelsio Communications");
98 MODULE_LICENSE("Dual BSD/GPL");
99 MODULE_VERSION(DRV_VERSION);
100 MODULE_DEVICE_TABLE(pci, cxgb3_pci_tbl);
101
102 static int dflt_msg_enable = DFLT_MSG_ENABLE;
103
104 module_param(dflt_msg_enable, int, 0644);
105 MODULE_PARM_DESC(dflt_msg_enable, "Chelsio T3 default message enable bitmap");
106
107 /*
108 * The driver uses the best interrupt scheme available on a platform in the
109 * order MSI-X, MSI, legacy pin interrupts. This parameter determines which
110 * of these schemes the driver may consider as follows:
111 *
112 * msi = 2: choose from among all three options
113 * msi = 1: only consider MSI and pin interrupts
114 * msi = 0: force pin interrupts
115 */
116 static int msi = 2;
117
118 module_param(msi, int, 0644);
119 MODULE_PARM_DESC(msi, "whether to use MSI or MSI-X");
120
121 /*
122 * The driver enables offload as a default.
123 * To disable it, use ofld_disable = 1.
124 */
125
126 static int ofld_disable = 0;
127
128 module_param(ofld_disable, int, 0644);
129 MODULE_PARM_DESC(ofld_disable, "whether to enable offload at init time or not");
130
131 /*
132 * We have work elements that we need to cancel when an interface is taken
133 * down. Normally the work elements would be executed by keventd but that
134 * can deadlock because of linkwatch. If our close method takes the rtnl
135 * lock and linkwatch is ahead of our work elements in keventd, linkwatch
136 * will block keventd as it needs the rtnl lock, and we'll deadlock waiting
137 * for our work to complete. Get our own work queue to solve this.
138 */
139 static struct workqueue_struct *cxgb3_wq;
140
141 /**
142 * link_report - show link status and link speed/duplex
143 * @p: the port whose settings are to be reported
144 *
145 * Shows the link status, speed, and duplex of a port.
146 */
147 static void link_report(struct net_device *dev)
148 {
149 if (!netif_carrier_ok(dev))
150 printk(KERN_INFO "%s: link down\n", dev->name);
151 else {
152 const char *s = "10Mbps";
153 const struct port_info *p = netdev_priv(dev);
154
155 switch (p->link_config.speed) {
156 case SPEED_10000:
157 s = "10Gbps";
158 break;
159 case SPEED_1000:
160 s = "1000Mbps";
161 break;
162 case SPEED_100:
163 s = "100Mbps";
164 break;
165 }
166
167 printk(KERN_INFO "%s: link up, %s, %s-duplex\n", dev->name, s,
168 p->link_config.duplex == DUPLEX_FULL ? "full" : "half");
169 }
170 }
171
172 /**
173 * t3_os_link_changed - handle link status changes
174 * @adapter: the adapter associated with the link change
175 * @port_id: the port index whose limk status has changed
176 * @link_stat: the new status of the link
177 * @speed: the new speed setting
178 * @duplex: the new duplex setting
179 * @pause: the new flow-control setting
180 *
181 * This is the OS-dependent handler for link status changes. The OS
182 * neutral handler takes care of most of the processing for these events,
183 * then calls this handler for any OS-specific processing.
184 */
185 void t3_os_link_changed(struct adapter *adapter, int port_id, int link_stat,
186 int speed, int duplex, int pause)
187 {
188 struct net_device *dev = adapter->port[port_id];
189 struct port_info *pi = netdev_priv(dev);
190 struct cmac *mac = &pi->mac;
191
192 /* Skip changes from disabled ports. */
193 if (!netif_running(dev))
194 return;
195
196 if (link_stat != netif_carrier_ok(dev)) {
197 if (link_stat) {
198 t3_mac_enable(mac, MAC_DIRECTION_RX);
199 netif_carrier_on(dev);
200 } else {
201 netif_carrier_off(dev);
202 pi->phy.ops->power_down(&pi->phy, 1);
203 t3_mac_disable(mac, MAC_DIRECTION_RX);
204 t3_link_start(&pi->phy, mac, &pi->link_config);
205 }
206
207 link_report(dev);
208 }
209 }
210
211 static void cxgb_set_rxmode(struct net_device *dev)
212 {
213 struct t3_rx_mode rm;
214 struct port_info *pi = netdev_priv(dev);
215
216 init_rx_mode(&rm, dev, dev->mc_list);
217 t3_mac_set_rx_mode(&pi->mac, &rm);
218 }
219
220 /**
221 * link_start - enable a port
222 * @dev: the device to enable
223 *
224 * Performs the MAC and PHY actions needed to enable a port.
225 */
226 static void link_start(struct net_device *dev)
227 {
228 struct t3_rx_mode rm;
229 struct port_info *pi = netdev_priv(dev);
230 struct cmac *mac = &pi->mac;
231
232 init_rx_mode(&rm, dev, dev->mc_list);
233 t3_mac_reset(mac);
234 t3_mac_set_mtu(mac, dev->mtu);
235 t3_mac_set_address(mac, 0, dev->dev_addr);
236 t3_mac_set_rx_mode(mac, &rm);
237 t3_link_start(&pi->phy, mac, &pi->link_config);
238 t3_mac_enable(mac, MAC_DIRECTION_RX | MAC_DIRECTION_TX);
239 }
240
241 static inline void cxgb_disable_msi(struct adapter *adapter)
242 {
243 if (adapter->flags & USING_MSIX) {
244 pci_disable_msix(adapter->pdev);
245 adapter->flags &= ~USING_MSIX;
246 } else if (adapter->flags & USING_MSI) {
247 pci_disable_msi(adapter->pdev);
248 adapter->flags &= ~USING_MSI;
249 }
250 }
251
252 /*
253 * Interrupt handler for asynchronous events used with MSI-X.
254 */
255 static irqreturn_t t3_async_intr_handler(int irq, void *cookie)
256 {
257 t3_slow_intr_handler(cookie);
258 return IRQ_HANDLED;
259 }
260
261 /*
262 * Name the MSI-X interrupts.
263 */
264 static void name_msix_vecs(struct adapter *adap)
265 {
266 int i, j, msi_idx = 1, n = sizeof(adap->msix_info[0].desc) - 1;
267
268 snprintf(adap->msix_info[0].desc, n, "%s", adap->name);
269 adap->msix_info[0].desc[n] = 0;
270
271 for_each_port(adap, j) {
272 struct net_device *d = adap->port[j];
273 const struct port_info *pi = netdev_priv(d);
274
275 for (i = 0; i < pi->nqsets; i++, msi_idx++) {
276 snprintf(adap->msix_info[msi_idx].desc, n,
277 "%s (queue %d)", d->name, i);
278 adap->msix_info[msi_idx].desc[n] = 0;
279 }
280 }
281 }
282
283 static int request_msix_data_irqs(struct adapter *adap)
284 {
285 int i, j, err, qidx = 0;
286
287 for_each_port(adap, i) {
288 int nqsets = adap2pinfo(adap, i)->nqsets;
289
290 for (j = 0; j < nqsets; ++j) {
291 err = request_irq(adap->msix_info[qidx + 1].vec,
292 t3_intr_handler(adap,
293 adap->sge.qs[qidx].
294 rspq.polling), 0,
295 adap->msix_info[qidx + 1].desc,
296 &adap->sge.qs[qidx]);
297 if (err) {
298 while (--qidx >= 0)
299 free_irq(adap->msix_info[qidx + 1].vec,
300 &adap->sge.qs[qidx]);
301 return err;
302 }
303 qidx++;
304 }
305 }
306 return 0;
307 }
308
309 /**
310 * setup_rss - configure RSS
311 * @adap: the adapter
312 *
313 * Sets up RSS to distribute packets to multiple receive queues. We
314 * configure the RSS CPU lookup table to distribute to the number of HW
315 * receive queues, and the response queue lookup table to narrow that
316 * down to the response queues actually configured for each port.
317 * We always configure the RSS mapping for two ports since the mapping
318 * table has plenty of entries.
319 */
320 static void setup_rss(struct adapter *adap)
321 {
322 int i;
323 unsigned int nq0 = adap2pinfo(adap, 0)->nqsets;
324 unsigned int nq1 = adap->port[1] ? adap2pinfo(adap, 1)->nqsets : 1;
325 u8 cpus[SGE_QSETS + 1];
326 u16 rspq_map[RSS_TABLE_SIZE];
327
328 for (i = 0; i < SGE_QSETS; ++i)
329 cpus[i] = i;
330 cpus[SGE_QSETS] = 0xff; /* terminator */
331
332 for (i = 0; i < RSS_TABLE_SIZE / 2; ++i) {
333 rspq_map[i] = i % nq0;
334 rspq_map[i + RSS_TABLE_SIZE / 2] = (i % nq1) + nq0;
335 }
336
337 t3_config_rss(adap, F_RQFEEDBACKENABLE | F_TNLLKPEN | F_TNLMAPEN |
338 F_TNLPRTEN | F_TNL2TUPEN | F_TNL4TUPEN |
339 V_RRCPLCPUSIZE(6), cpus, rspq_map);
340 }
341
342 static void init_napi(struct adapter *adap)
343 {
344 int i;
345
346 for (i = 0; i < SGE_QSETS; i++) {
347 struct sge_qset *qs = &adap->sge.qs[i];
348
349 if (qs->adap)
350 netif_napi_add(qs->netdev, &qs->napi, qs->napi.poll,
351 64);
352 }
353 }
354
355 /*
356 * Wait until all NAPI handlers are descheduled. This includes the handlers of
357 * both netdevices representing interfaces and the dummy ones for the extra
358 * queues.
359 */
360 static void quiesce_rx(struct adapter *adap)
361 {
362 int i;
363
364 for (i = 0; i < SGE_QSETS; i++)
365 if (adap->sge.qs[i].adap)
366 napi_disable(&adap->sge.qs[i].napi);
367 }
368
369 static void enable_all_napi(struct adapter *adap)
370 {
371 int i;
372 for (i = 0; i < SGE_QSETS; i++)
373 if (adap->sge.qs[i].adap)
374 napi_enable(&adap->sge.qs[i].napi);
375 }
376
377 /**
378 * setup_sge_qsets - configure SGE Tx/Rx/response queues
379 * @adap: the adapter
380 *
381 * Determines how many sets of SGE queues to use and initializes them.
382 * We support multiple queue sets per port if we have MSI-X, otherwise
383 * just one queue set per port.
384 */
385 static int setup_sge_qsets(struct adapter *adap)
386 {
387 int i, j, err, irq_idx = 0, qset_idx = 0;
388 unsigned int ntxq = SGE_TXQ_PER_SET;
389
390 if (adap->params.rev > 0 && !(adap->flags & USING_MSI))
391 irq_idx = -1;
392
393 for_each_port(adap, i) {
394 struct net_device *dev = adap->port[i];
395 struct port_info *pi = netdev_priv(dev);
396
397 pi->qs = &adap->sge.qs[pi->first_qset];
398 for (j = 0; j < pi->nqsets; ++j, ++qset_idx) {
399 err = t3_sge_alloc_qset(adap, qset_idx, 1,
400 (adap->flags & USING_MSIX) ? qset_idx + 1 :
401 irq_idx,
402 &adap->params.sge.qset[qset_idx], ntxq, dev);
403 if (err) {
404 t3_free_sge_resources(adap);
405 return err;
406 }
407 }
408 }
409
410 return 0;
411 }
412
413 static ssize_t attr_show(struct device *d, struct device_attribute *attr,
414 char *buf,
415 ssize_t(*format) (struct net_device *, char *))
416 {
417 ssize_t len;
418
419 /* Synchronize with ioctls that may shut down the device */
420 rtnl_lock();
421 len = (*format) (to_net_dev(d), buf);
422 rtnl_unlock();
423 return len;
424 }
425
426 static ssize_t attr_store(struct device *d, struct device_attribute *attr,
427 const char *buf, size_t len,
428 ssize_t(*set) (struct net_device *, unsigned int),
429 unsigned int min_val, unsigned int max_val)
430 {
431 char *endp;
432 ssize_t ret;
433 unsigned int val;
434
435 if (!capable(CAP_NET_ADMIN))
436 return -EPERM;
437
438 val = simple_strtoul(buf, &endp, 0);
439 if (endp == buf || val < min_val || val > max_val)
440 return -EINVAL;
441
442 rtnl_lock();
443 ret = (*set) (to_net_dev(d), val);
444 if (!ret)
445 ret = len;
446 rtnl_unlock();
447 return ret;
448 }
449
450 #define CXGB3_SHOW(name, val_expr) \
451 static ssize_t format_##name(struct net_device *dev, char *buf) \
452 { \
453 struct port_info *pi = netdev_priv(dev); \
454 struct adapter *adap = pi->adapter; \
455 return sprintf(buf, "%u\n", val_expr); \
456 } \
457 static ssize_t show_##name(struct device *d, struct device_attribute *attr, \
458 char *buf) \
459 { \
460 return attr_show(d, attr, buf, format_##name); \
461 }
462
463 static ssize_t set_nfilters(struct net_device *dev, unsigned int val)
464 {
465 struct port_info *pi = netdev_priv(dev);
466 struct adapter *adap = pi->adapter;
467 int min_tids = is_offload(adap) ? MC5_MIN_TIDS : 0;
468
469 if (adap->flags & FULL_INIT_DONE)
470 return -EBUSY;
471 if (val && adap->params.rev == 0)
472 return -EINVAL;
473 if (val > t3_mc5_size(&adap->mc5) - adap->params.mc5.nservers -
474 min_tids)
475 return -EINVAL;
476 adap->params.mc5.nfilters = val;
477 return 0;
478 }
479
480 static ssize_t store_nfilters(struct device *d, struct device_attribute *attr,
481 const char *buf, size_t len)
482 {
483 return attr_store(d, attr, buf, len, set_nfilters, 0, ~0);
484 }
485
486 static ssize_t set_nservers(struct net_device *dev, unsigned int val)
487 {
488 struct port_info *pi = netdev_priv(dev);
489 struct adapter *adap = pi->adapter;
490
491 if (adap->flags & FULL_INIT_DONE)
492 return -EBUSY;
493 if (val > t3_mc5_size(&adap->mc5) - adap->params.mc5.nfilters -
494 MC5_MIN_TIDS)
495 return -EINVAL;
496 adap->params.mc5.nservers = val;
497 return 0;
498 }
499
500 static ssize_t store_nservers(struct device *d, struct device_attribute *attr,
501 const char *buf, size_t len)
502 {
503 return attr_store(d, attr, buf, len, set_nservers, 0, ~0);
504 }
505
506 #define CXGB3_ATTR_R(name, val_expr) \
507 CXGB3_SHOW(name, val_expr) \
508 static DEVICE_ATTR(name, S_IRUGO, show_##name, NULL)
509
510 #define CXGB3_ATTR_RW(name, val_expr, store_method) \
511 CXGB3_SHOW(name, val_expr) \
512 static DEVICE_ATTR(name, S_IRUGO | S_IWUSR, show_##name, store_method)
513
514 CXGB3_ATTR_R(cam_size, t3_mc5_size(&adap->mc5));
515 CXGB3_ATTR_RW(nfilters, adap->params.mc5.nfilters, store_nfilters);
516 CXGB3_ATTR_RW(nservers, adap->params.mc5.nservers, store_nservers);
517
518 static struct attribute *cxgb3_attrs[] = {
519 &dev_attr_cam_size.attr,
520 &dev_attr_nfilters.attr,
521 &dev_attr_nservers.attr,
522 NULL
523 };
524
525 static struct attribute_group cxgb3_attr_group = {.attrs = cxgb3_attrs };
526
527 static ssize_t tm_attr_show(struct device *d, struct device_attribute *attr,
528 char *buf, int sched)
529 {
530 struct port_info *pi = netdev_priv(to_net_dev(d));
531 struct adapter *adap = pi->adapter;
532 unsigned int v, addr, bpt, cpt;
533 ssize_t len;
534
535 addr = A_TP_TX_MOD_Q1_Q0_RATE_LIMIT - sched / 2;
536 rtnl_lock();
537 t3_write_reg(adap, A_TP_TM_PIO_ADDR, addr);
538 v = t3_read_reg(adap, A_TP_TM_PIO_DATA);
539 if (sched & 1)
540 v >>= 16;
541 bpt = (v >> 8) & 0xff;
542 cpt = v & 0xff;
543 if (!cpt)
544 len = sprintf(buf, "disabled\n");
545 else {
546 v = (adap->params.vpd.cclk * 1000) / cpt;
547 len = sprintf(buf, "%u Kbps\n", (v * bpt) / 125);
548 }
549 rtnl_unlock();
550 return len;
551 }
552
553 static ssize_t tm_attr_store(struct device *d, struct device_attribute *attr,
554 const char *buf, size_t len, int sched)
555 {
556 struct port_info *pi = netdev_priv(to_net_dev(d));
557 struct adapter *adap = pi->adapter;
558 unsigned int val;
559 char *endp;
560 ssize_t ret;
561
562 if (!capable(CAP_NET_ADMIN))
563 return -EPERM;
564
565 val = simple_strtoul(buf, &endp, 0);
566 if (endp == buf || val > 10000000)
567 return -EINVAL;
568
569 rtnl_lock();
570 ret = t3_config_sched(adap, val, sched);
571 if (!ret)
572 ret = len;
573 rtnl_unlock();
574 return ret;
575 }
576
577 #define TM_ATTR(name, sched) \
578 static ssize_t show_##name(struct device *d, struct device_attribute *attr, \
579 char *buf) \
580 { \
581 return tm_attr_show(d, attr, buf, sched); \
582 } \
583 static ssize_t store_##name(struct device *d, struct device_attribute *attr, \
584 const char *buf, size_t len) \
585 { \
586 return tm_attr_store(d, attr, buf, len, sched); \
587 } \
588 static DEVICE_ATTR(name, S_IRUGO | S_IWUSR, show_##name, store_##name)
589
590 TM_ATTR(sched0, 0);
591 TM_ATTR(sched1, 1);
592 TM_ATTR(sched2, 2);
593 TM_ATTR(sched3, 3);
594 TM_ATTR(sched4, 4);
595 TM_ATTR(sched5, 5);
596 TM_ATTR(sched6, 6);
597 TM_ATTR(sched7, 7);
598
599 static struct attribute *offload_attrs[] = {
600 &dev_attr_sched0.attr,
601 &dev_attr_sched1.attr,
602 &dev_attr_sched2.attr,
603 &dev_attr_sched3.attr,
604 &dev_attr_sched4.attr,
605 &dev_attr_sched5.attr,
606 &dev_attr_sched6.attr,
607 &dev_attr_sched7.attr,
608 NULL
609 };
610
611 static struct attribute_group offload_attr_group = {.attrs = offload_attrs };
612
613 /*
614 * Sends an sk_buff to an offload queue driver
615 * after dealing with any active network taps.
616 */
617 static inline int offload_tx(struct t3cdev *tdev, struct sk_buff *skb)
618 {
619 int ret;
620
621 local_bh_disable();
622 ret = t3_offload_tx(tdev, skb);
623 local_bh_enable();
624 return ret;
625 }
626
627 static int write_smt_entry(struct adapter *adapter, int idx)
628 {
629 struct cpl_smt_write_req *req;
630 struct sk_buff *skb = alloc_skb(sizeof(*req), GFP_KERNEL);
631
632 if (!skb)
633 return -ENOMEM;
634
635 req = (struct cpl_smt_write_req *)__skb_put(skb, sizeof(*req));
636 req->wr.wr_hi = htonl(V_WR_OP(FW_WROPCODE_FORWARD));
637 OPCODE_TID(req) = htonl(MK_OPCODE_TID(CPL_SMT_WRITE_REQ, idx));
638 req->mtu_idx = NMTUS - 1; /* should be 0 but there's a T3 bug */
639 req->iff = idx;
640 memset(req->src_mac1, 0, sizeof(req->src_mac1));
641 memcpy(req->src_mac0, adapter->port[idx]->dev_addr, ETH_ALEN);
642 skb->priority = 1;
643 offload_tx(&adapter->tdev, skb);
644 return 0;
645 }
646
647 static int init_smt(struct adapter *adapter)
648 {
649 int i;
650
651 for_each_port(adapter, i)
652 write_smt_entry(adapter, i);
653 return 0;
654 }
655
656 static void init_port_mtus(struct adapter *adapter)
657 {
658 unsigned int mtus = adapter->port[0]->mtu;
659
660 if (adapter->port[1])
661 mtus |= adapter->port[1]->mtu << 16;
662 t3_write_reg(adapter, A_TP_MTU_PORT_TABLE, mtus);
663 }
664
665 static void send_pktsched_cmd(struct adapter *adap, int sched, int qidx, int lo,
666 int hi, int port)
667 {
668 struct sk_buff *skb;
669 struct mngt_pktsched_wr *req;
670
671 skb = alloc_skb(sizeof(*req), GFP_KERNEL | __GFP_NOFAIL);
672 req = (struct mngt_pktsched_wr *)skb_put(skb, sizeof(*req));
673 req->wr_hi = htonl(V_WR_OP(FW_WROPCODE_MNGT));
674 req->mngt_opcode = FW_MNGTOPCODE_PKTSCHED_SET;
675 req->sched = sched;
676 req->idx = qidx;
677 req->min = lo;
678 req->max = hi;
679 req->binding = port;
680 t3_mgmt_tx(adap, skb);
681 }
682
683 static void bind_qsets(struct adapter *adap)
684 {
685 int i, j;
686
687 for_each_port(adap, i) {
688 const struct port_info *pi = adap2pinfo(adap, i);
689
690 for (j = 0; j < pi->nqsets; ++j)
691 send_pktsched_cmd(adap, 1, pi->first_qset + j, -1,
692 -1, i);
693 }
694 }
695
696 #define FW_FNAME "t3fw-%d.%d.%d.bin"
697 #define TPSRAM_NAME "t3%c_protocol_sram-%d.%d.%d.bin"
698
699 static int upgrade_fw(struct adapter *adap)
700 {
701 int ret;
702 char buf[64];
703 const struct firmware *fw;
704 struct device *dev = &adap->pdev->dev;
705
706 snprintf(buf, sizeof(buf), FW_FNAME, FW_VERSION_MAJOR,
707 FW_VERSION_MINOR, FW_VERSION_MICRO);
708 ret = request_firmware(&fw, buf, dev);
709 if (ret < 0) {
710 dev_err(dev, "could not upgrade firmware: unable to load %s\n",
711 buf);
712 return ret;
713 }
714 ret = t3_load_fw(adap, fw->data, fw->size);
715 release_firmware(fw);
716
717 if (ret == 0)
718 dev_info(dev, "successful upgrade to firmware %d.%d.%d\n",
719 FW_VERSION_MAJOR, FW_VERSION_MINOR, FW_VERSION_MICRO);
720 else
721 dev_err(dev, "failed to upgrade to firmware %d.%d.%d\n",
722 FW_VERSION_MAJOR, FW_VERSION_MINOR, FW_VERSION_MICRO);
723
724 return ret;
725 }
726
727 static inline char t3rev2char(struct adapter *adapter)
728 {
729 char rev = 0;
730
731 switch(adapter->params.rev) {
732 case T3_REV_B:
733 case T3_REV_B2:
734 rev = 'b';
735 break;
736 case T3_REV_C:
737 rev = 'c';
738 break;
739 }
740 return rev;
741 }
742
743 static int update_tpsram(struct adapter *adap)
744 {
745 const struct firmware *tpsram;
746 char buf[64];
747 struct device *dev = &adap->pdev->dev;
748 int ret;
749 char rev;
750
751 rev = t3rev2char(adap);
752 if (!rev)
753 return 0;
754
755 snprintf(buf, sizeof(buf), TPSRAM_NAME, rev,
756 TP_VERSION_MAJOR, TP_VERSION_MINOR, TP_VERSION_MICRO);
757
758 ret = request_firmware(&tpsram, buf, dev);
759 if (ret < 0) {
760 dev_err(dev, "could not load TP SRAM: unable to load %s\n",
761 buf);
762 return ret;
763 }
764
765 ret = t3_check_tpsram(adap, tpsram->data, tpsram->size);
766 if (ret)
767 goto release_tpsram;
768
769 ret = t3_set_proto_sram(adap, tpsram->data);
770 if (ret == 0)
771 dev_info(dev,
772 "successful update of protocol engine "
773 "to %d.%d.%d\n",
774 TP_VERSION_MAJOR, TP_VERSION_MINOR, TP_VERSION_MICRO);
775 else
776 dev_err(dev, "failed to update of protocol engine %d.%d.%d\n",
777 TP_VERSION_MAJOR, TP_VERSION_MINOR, TP_VERSION_MICRO);
778 if (ret)
779 dev_err(dev, "loading protocol SRAM failed\n");
780
781 release_tpsram:
782 release_firmware(tpsram);
783
784 return ret;
785 }
786
787 /**
788 * cxgb_up - enable the adapter
789 * @adapter: adapter being enabled
790 *
791 * Called when the first port is enabled, this function performs the
792 * actions necessary to make an adapter operational, such as completing
793 * the initialization of HW modules, and enabling interrupts.
794 *
795 * Must be called with the rtnl lock held.
796 */
797 static int cxgb_up(struct adapter *adap)
798 {
799 int err;
800 int must_load;
801
802 if (!(adap->flags & FULL_INIT_DONE)) {
803 err = t3_check_fw_version(adap, &must_load);
804 if (err == -EINVAL) {
805 err = upgrade_fw(adap);
806 if (err && must_load)
807 goto out;
808 }
809
810 err = t3_check_tpsram_version(adap, &must_load);
811 if (err == -EINVAL) {
812 err = update_tpsram(adap);
813 if (err && must_load)
814 goto out;
815 }
816
817 err = t3_init_hw(adap, 0);
818 if (err)
819 goto out;
820
821 t3_write_reg(adap, A_ULPRX_TDDP_PSZ, V_HPZ0(PAGE_SHIFT - 12));
822
823 err = setup_sge_qsets(adap);
824 if (err)
825 goto out;
826
827 setup_rss(adap);
828 init_napi(adap);
829 adap->flags |= FULL_INIT_DONE;
830 }
831
832 t3_intr_clear(adap);
833
834 if (adap->flags & USING_MSIX) {
835 name_msix_vecs(adap);
836 err = request_irq(adap->msix_info[0].vec,
837 t3_async_intr_handler, 0,
838 adap->msix_info[0].desc, adap);
839 if (err)
840 goto irq_err;
841
842 if (request_msix_data_irqs(adap)) {
843 free_irq(adap->msix_info[0].vec, adap);
844 goto irq_err;
845 }
846 } else if ((err = request_irq(adap->pdev->irq,
847 t3_intr_handler(adap,
848 adap->sge.qs[0].rspq.
849 polling),
850 (adap->flags & USING_MSI) ?
851 0 : IRQF_SHARED,
852 adap->name, adap)))
853 goto irq_err;
854
855 enable_all_napi(adap);
856 t3_sge_start(adap);
857 t3_intr_enable(adap);
858
859 if ((adap->flags & (USING_MSIX | QUEUES_BOUND)) == USING_MSIX)
860 bind_qsets(adap);
861 adap->flags |= QUEUES_BOUND;
862
863 out:
864 return err;
865 irq_err:
866 CH_ERR(adap, "request_irq failed, err %d\n", err);
867 goto out;
868 }
869
870 /*
871 * Release resources when all the ports and offloading have been stopped.
872 */
873 static void cxgb_down(struct adapter *adapter)
874 {
875 t3_sge_stop(adapter);
876 spin_lock_irq(&adapter->work_lock); /* sync with PHY intr task */
877 t3_intr_disable(adapter);
878 spin_unlock_irq(&adapter->work_lock);
879
880 if (adapter->flags & USING_MSIX) {
881 int i, n = 0;
882
883 free_irq(adapter->msix_info[0].vec, adapter);
884 for_each_port(adapter, i)
885 n += adap2pinfo(adapter, i)->nqsets;
886
887 for (i = 0; i < n; ++i)
888 free_irq(adapter->msix_info[i + 1].vec,
889 &adapter->sge.qs[i]);
890 } else
891 free_irq(adapter->pdev->irq, adapter);
892
893 flush_workqueue(cxgb3_wq); /* wait for external IRQ handler */
894 quiesce_rx(adapter);
895 }
896
897 static void schedule_chk_task(struct adapter *adap)
898 {
899 unsigned int timeo;
900
901 timeo = adap->params.linkpoll_period ?
902 (HZ * adap->params.linkpoll_period) / 10 :
903 adap->params.stats_update_period * HZ;
904 if (timeo)
905 queue_delayed_work(cxgb3_wq, &adap->adap_check_task, timeo);
906 }
907
908 static int offload_open(struct net_device *dev)
909 {
910 struct port_info *pi = netdev_priv(dev);
911 struct adapter *adapter = pi->adapter;
912 struct t3cdev *tdev = dev2t3cdev(dev);
913 int adap_up = adapter->open_device_map & PORT_MASK;
914 int err;
915
916 if (test_and_set_bit(OFFLOAD_DEVMAP_BIT, &adapter->open_device_map))
917 return 0;
918
919 if (!adap_up && (err = cxgb_up(adapter)) < 0)
920 return err;
921
922 t3_tp_set_offload_mode(adapter, 1);
923 tdev->lldev = adapter->port[0];
924 err = cxgb3_offload_activate(adapter);
925 if (err)
926 goto out;
927
928 init_port_mtus(adapter);
929 t3_load_mtus(adapter, adapter->params.mtus, adapter->params.a_wnd,
930 adapter->params.b_wnd,
931 adapter->params.rev == 0 ?
932 adapter->port[0]->mtu : 0xffff);
933 init_smt(adapter);
934
935 /* Never mind if the next step fails */
936 sysfs_create_group(&tdev->lldev->dev.kobj, &offload_attr_group);
937
938 /* Call back all registered clients */
939 cxgb3_add_clients(tdev);
940
941 out:
942 /* restore them in case the offload module has changed them */
943 if (err) {
944 t3_tp_set_offload_mode(adapter, 0);
945 clear_bit(OFFLOAD_DEVMAP_BIT, &adapter->open_device_map);
946 cxgb3_set_dummy_ops(tdev);
947 }
948 return err;
949 }
950
951 static int offload_close(struct t3cdev *tdev)
952 {
953 struct adapter *adapter = tdev2adap(tdev);
954
955 if (!test_bit(OFFLOAD_DEVMAP_BIT, &adapter->open_device_map))
956 return 0;
957
958 /* Call back all registered clients */
959 cxgb3_remove_clients(tdev);
960
961 sysfs_remove_group(&tdev->lldev->dev.kobj, &offload_attr_group);
962
963 tdev->lldev = NULL;
964 cxgb3_set_dummy_ops(tdev);
965 t3_tp_set_offload_mode(adapter, 0);
966 clear_bit(OFFLOAD_DEVMAP_BIT, &adapter->open_device_map);
967
968 if (!adapter->open_device_map)
969 cxgb_down(adapter);
970
971 cxgb3_offload_deactivate(adapter);
972 return 0;
973 }
974
975 static int cxgb_open(struct net_device *dev)
976 {
977 struct port_info *pi = netdev_priv(dev);
978 struct adapter *adapter = pi->adapter;
979 int other_ports = adapter->open_device_map & PORT_MASK;
980 int err;
981
982 if (!adapter->open_device_map && (err = cxgb_up(adapter)) < 0) {
983 quiesce_rx(adapter);
984 return err;
985 }
986
987 set_bit(pi->port_id, &adapter->open_device_map);
988 if (is_offload(adapter) && !ofld_disable) {
989 err = offload_open(dev);
990 if (err)
991 printk(KERN_WARNING
992 "Could not initialize offload capabilities\n");
993 }
994
995 link_start(dev);
996 t3_port_intr_enable(adapter, pi->port_id);
997 netif_start_queue(dev);
998 if (!other_ports)
999 schedule_chk_task(adapter);
1000
1001 return 0;
1002 }
1003
1004 static int cxgb_close(struct net_device *dev)
1005 {
1006 struct port_info *pi = netdev_priv(dev);
1007 struct adapter *adapter = pi->adapter;
1008
1009 t3_port_intr_disable(adapter, pi->port_id);
1010 netif_stop_queue(dev);
1011 pi->phy.ops->power_down(&pi->phy, 1);
1012 netif_carrier_off(dev);
1013 t3_mac_disable(&pi->mac, MAC_DIRECTION_TX | MAC_DIRECTION_RX);
1014
1015 spin_lock(&adapter->work_lock); /* sync with update task */
1016 clear_bit(pi->port_id, &adapter->open_device_map);
1017 spin_unlock(&adapter->work_lock);
1018
1019 if (!(adapter->open_device_map & PORT_MASK))
1020 cancel_rearming_delayed_workqueue(cxgb3_wq,
1021 &adapter->adap_check_task);
1022
1023 if (!adapter->open_device_map)
1024 cxgb_down(adapter);
1025
1026 return 0;
1027 }
1028
1029 static struct net_device_stats *cxgb_get_stats(struct net_device *dev)
1030 {
1031 struct port_info *pi = netdev_priv(dev);
1032 struct adapter *adapter = pi->adapter;
1033 struct net_device_stats *ns = &pi->netstats;
1034 const struct mac_stats *pstats;
1035
1036 spin_lock(&adapter->stats_lock);
1037 pstats = t3_mac_update_stats(&pi->mac);
1038 spin_unlock(&adapter->stats_lock);
1039
1040 ns->tx_bytes = pstats->tx_octets;
1041 ns->tx_packets = pstats->tx_frames;
1042 ns->rx_bytes = pstats->rx_octets;
1043 ns->rx_packets = pstats->rx_frames;
1044 ns->multicast = pstats->rx_mcast_frames;
1045
1046 ns->tx_errors = pstats->tx_underrun;
1047 ns->rx_errors = pstats->rx_symbol_errs + pstats->rx_fcs_errs +
1048 pstats->rx_too_long + pstats->rx_jabber + pstats->rx_short +
1049 pstats->rx_fifo_ovfl;
1050
1051 /* detailed rx_errors */
1052 ns->rx_length_errors = pstats->rx_jabber + pstats->rx_too_long;
1053 ns->rx_over_errors = 0;
1054 ns->rx_crc_errors = pstats->rx_fcs_errs;
1055 ns->rx_frame_errors = pstats->rx_symbol_errs;
1056 ns->rx_fifo_errors = pstats->rx_fifo_ovfl;
1057 ns->rx_missed_errors = pstats->rx_cong_drops;
1058
1059 /* detailed tx_errors */
1060 ns->tx_aborted_errors = 0;
1061 ns->tx_carrier_errors = 0;
1062 ns->tx_fifo_errors = pstats->tx_underrun;
1063 ns->tx_heartbeat_errors = 0;
1064 ns->tx_window_errors = 0;
1065 return ns;
1066 }
1067
1068 static u32 get_msglevel(struct net_device *dev)
1069 {
1070 struct port_info *pi = netdev_priv(dev);
1071 struct adapter *adapter = pi->adapter;
1072
1073 return adapter->msg_enable;
1074 }
1075
1076 static void set_msglevel(struct net_device *dev, u32 val)
1077 {
1078 struct port_info *pi = netdev_priv(dev);
1079 struct adapter *adapter = pi->adapter;
1080
1081 adapter->msg_enable = val;
1082 }
1083
1084 static char stats_strings[][ETH_GSTRING_LEN] = {
1085 "TxOctetsOK ",
1086 "TxFramesOK ",
1087 "TxMulticastFramesOK",
1088 "TxBroadcastFramesOK",
1089 "TxPauseFrames ",
1090 "TxUnderrun ",
1091 "TxExtUnderrun ",
1092
1093 "TxFrames64 ",
1094 "TxFrames65To127 ",
1095 "TxFrames128To255 ",
1096 "TxFrames256To511 ",
1097 "TxFrames512To1023 ",
1098 "TxFrames1024To1518 ",
1099 "TxFrames1519ToMax ",
1100
1101 "RxOctetsOK ",
1102 "RxFramesOK ",
1103 "RxMulticastFramesOK",
1104 "RxBroadcastFramesOK",
1105 "RxPauseFrames ",
1106 "RxFCSErrors ",
1107 "RxSymbolErrors ",
1108 "RxShortErrors ",
1109 "RxJabberErrors ",
1110 "RxLengthErrors ",
1111 "RxFIFOoverflow ",
1112
1113 "RxFrames64 ",
1114 "RxFrames65To127 ",
1115 "RxFrames128To255 ",
1116 "RxFrames256To511 ",
1117 "RxFrames512To1023 ",
1118 "RxFrames1024To1518 ",
1119 "RxFrames1519ToMax ",
1120
1121 "PhyFIFOErrors ",
1122 "TSO ",
1123 "VLANextractions ",
1124 "VLANinsertions ",
1125 "TxCsumOffload ",
1126 "RxCsumGood ",
1127 "RxDrops ",
1128
1129 "CheckTXEnToggled ",
1130 "CheckResets ",
1131
1132 };
1133
1134 static int get_sset_count(struct net_device *dev, int sset)
1135 {
1136 switch (sset) {
1137 case ETH_SS_STATS:
1138 return ARRAY_SIZE(stats_strings);
1139 default:
1140 return -EOPNOTSUPP;
1141 }
1142 }
1143
1144 #define T3_REGMAP_SIZE (3 * 1024)
1145
1146 static int get_regs_len(struct net_device *dev)
1147 {
1148 return T3_REGMAP_SIZE;
1149 }
1150
1151 static int get_eeprom_len(struct net_device *dev)
1152 {
1153 return EEPROMSIZE;
1154 }
1155
1156 static void get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
1157 {
1158 struct port_info *pi = netdev_priv(dev);
1159 struct adapter *adapter = pi->adapter;
1160 u32 fw_vers = 0;
1161 u32 tp_vers = 0;
1162
1163 t3_get_fw_version(adapter, &fw_vers);
1164 t3_get_tp_version(adapter, &tp_vers);
1165
1166 strcpy(info->driver, DRV_NAME);
1167 strcpy(info->version, DRV_VERSION);
1168 strcpy(info->bus_info, pci_name(adapter->pdev));
1169 if (!fw_vers)
1170 strcpy(info->fw_version, "N/A");
1171 else {
1172 snprintf(info->fw_version, sizeof(info->fw_version),
1173 "%s %u.%u.%u TP %u.%u.%u",
1174 G_FW_VERSION_TYPE(fw_vers) ? "T" : "N",
1175 G_FW_VERSION_MAJOR(fw_vers),
1176 G_FW_VERSION_MINOR(fw_vers),
1177 G_FW_VERSION_MICRO(fw_vers),
1178 G_TP_VERSION_MAJOR(tp_vers),
1179 G_TP_VERSION_MINOR(tp_vers),
1180 G_TP_VERSION_MICRO(tp_vers));
1181 }
1182 }
1183
1184 static void get_strings(struct net_device *dev, u32 stringset, u8 * data)
1185 {
1186 if (stringset == ETH_SS_STATS)
1187 memcpy(data, stats_strings, sizeof(stats_strings));
1188 }
1189
1190 static unsigned long collect_sge_port_stats(struct adapter *adapter,
1191 struct port_info *p, int idx)
1192 {
1193 int i;
1194 unsigned long tot = 0;
1195
1196 for (i = 0; i < p->nqsets; ++i)
1197 tot += adapter->sge.qs[i + p->first_qset].port_stats[idx];
1198 return tot;
1199 }
1200
1201 static void get_stats(struct net_device *dev, struct ethtool_stats *stats,
1202 u64 *data)
1203 {
1204 struct port_info *pi = netdev_priv(dev);
1205 struct adapter *adapter = pi->adapter;
1206 const struct mac_stats *s;
1207
1208 spin_lock(&adapter->stats_lock);
1209 s = t3_mac_update_stats(&pi->mac);
1210 spin_unlock(&adapter->stats_lock);
1211
1212 *data++ = s->tx_octets;
1213 *data++ = s->tx_frames;
1214 *data++ = s->tx_mcast_frames;
1215 *data++ = s->tx_bcast_frames;
1216 *data++ = s->tx_pause;
1217 *data++ = s->tx_underrun;
1218 *data++ = s->tx_fifo_urun;
1219
1220 *data++ = s->tx_frames_64;
1221 *data++ = s->tx_frames_65_127;
1222 *data++ = s->tx_frames_128_255;
1223 *data++ = s->tx_frames_256_511;
1224 *data++ = s->tx_frames_512_1023;
1225 *data++ = s->tx_frames_1024_1518;
1226 *data++ = s->tx_frames_1519_max;
1227
1228 *data++ = s->rx_octets;
1229 *data++ = s->rx_frames;
1230 *data++ = s->rx_mcast_frames;
1231 *data++ = s->rx_bcast_frames;
1232 *data++ = s->rx_pause;
1233 *data++ = s->rx_fcs_errs;
1234 *data++ = s->rx_symbol_errs;
1235 *data++ = s->rx_short;
1236 *data++ = s->rx_jabber;
1237 *data++ = s->rx_too_long;
1238 *data++ = s->rx_fifo_ovfl;
1239
1240 *data++ = s->rx_frames_64;
1241 *data++ = s->rx_frames_65_127;
1242 *data++ = s->rx_frames_128_255;
1243 *data++ = s->rx_frames_256_511;
1244 *data++ = s->rx_frames_512_1023;
1245 *data++ = s->rx_frames_1024_1518;
1246 *data++ = s->rx_frames_1519_max;
1247
1248 *data++ = pi->phy.fifo_errors;
1249
1250 *data++ = collect_sge_port_stats(adapter, pi, SGE_PSTAT_TSO);
1251 *data++ = collect_sge_port_stats(adapter, pi, SGE_PSTAT_VLANEX);
1252 *data++ = collect_sge_port_stats(adapter, pi, SGE_PSTAT_VLANINS);
1253 *data++ = collect_sge_port_stats(adapter, pi, SGE_PSTAT_TX_CSUM);
1254 *data++ = collect_sge_port_stats(adapter, pi, SGE_PSTAT_RX_CSUM_GOOD);
1255 *data++ = s->rx_cong_drops;
1256
1257 *data++ = s->num_toggled;
1258 *data++ = s->num_resets;
1259 }
1260
1261 static inline void reg_block_dump(struct adapter *ap, void *buf,
1262 unsigned int start, unsigned int end)
1263 {
1264 u32 *p = buf + start;
1265
1266 for (; start <= end; start += sizeof(u32))
1267 *p++ = t3_read_reg(ap, start);
1268 }
1269
1270 static void get_regs(struct net_device *dev, struct ethtool_regs *regs,
1271 void *buf)
1272 {
1273 struct port_info *pi = netdev_priv(dev);
1274 struct adapter *ap = pi->adapter;
1275
1276 /*
1277 * Version scheme:
1278 * bits 0..9: chip version
1279 * bits 10..15: chip revision
1280 * bit 31: set for PCIe cards
1281 */
1282 regs->version = 3 | (ap->params.rev << 10) | (is_pcie(ap) << 31);
1283
1284 /*
1285 * We skip the MAC statistics registers because they are clear-on-read.
1286 * Also reading multi-register stats would need to synchronize with the
1287 * periodic mac stats accumulation. Hard to justify the complexity.
1288 */
1289 memset(buf, 0, T3_REGMAP_SIZE);
1290 reg_block_dump(ap, buf, 0, A_SG_RSPQ_CREDIT_RETURN);
1291 reg_block_dump(ap, buf, A_SG_HI_DRB_HI_THRSH, A_ULPRX_PBL_ULIMIT);
1292 reg_block_dump(ap, buf, A_ULPTX_CONFIG, A_MPS_INT_CAUSE);
1293 reg_block_dump(ap, buf, A_CPL_SWITCH_CNTRL, A_CPL_MAP_TBL_DATA);
1294 reg_block_dump(ap, buf, A_SMB_GLOBAL_TIME_CFG, A_XGM_SERDES_STAT3);
1295 reg_block_dump(ap, buf, A_XGM_SERDES_STATUS0,
1296 XGM_REG(A_XGM_SERDES_STAT3, 1));
1297 reg_block_dump(ap, buf, XGM_REG(A_XGM_SERDES_STATUS0, 1),
1298 XGM_REG(A_XGM_RX_SPI4_SOP_EOP_CNT, 1));
1299 }
1300
1301 static int restart_autoneg(struct net_device *dev)
1302 {
1303 struct port_info *p = netdev_priv(dev);
1304
1305 if (!netif_running(dev))
1306 return -EAGAIN;
1307 if (p->link_config.autoneg != AUTONEG_ENABLE)
1308 return -EINVAL;
1309 p->phy.ops->autoneg_restart(&p->phy);
1310 return 0;
1311 }
1312
1313 static int cxgb3_phys_id(struct net_device *dev, u32 data)
1314 {
1315 struct port_info *pi = netdev_priv(dev);
1316 struct adapter *adapter = pi->adapter;
1317 int i;
1318
1319 if (data == 0)
1320 data = 2;
1321
1322 for (i = 0; i < data * 2; i++) {
1323 t3_set_reg_field(adapter, A_T3DBG_GPIO_EN, F_GPIO0_OUT_VAL,
1324 (i & 1) ? F_GPIO0_OUT_VAL : 0);
1325 if (msleep_interruptible(500))
1326 break;
1327 }
1328 t3_set_reg_field(adapter, A_T3DBG_GPIO_EN, F_GPIO0_OUT_VAL,
1329 F_GPIO0_OUT_VAL);
1330 return 0;
1331 }
1332
1333 static int get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
1334 {
1335 struct port_info *p = netdev_priv(dev);
1336
1337 cmd->supported = p->link_config.supported;
1338 cmd->advertising = p->link_config.advertising;
1339
1340 if (netif_carrier_ok(dev)) {
1341 cmd->speed = p->link_config.speed;
1342 cmd->duplex = p->link_config.duplex;
1343 } else {
1344 cmd->speed = -1;
1345 cmd->duplex = -1;
1346 }
1347
1348 cmd->port = (cmd->supported & SUPPORTED_TP) ? PORT_TP : PORT_FIBRE;
1349 cmd->phy_address = p->phy.addr;
1350 cmd->transceiver = XCVR_EXTERNAL;
1351 cmd->autoneg = p->link_config.autoneg;
1352 cmd->maxtxpkt = 0;
1353 cmd->maxrxpkt = 0;
1354 return 0;
1355 }
1356
1357 static int speed_duplex_to_caps(int speed, int duplex)
1358 {
1359 int cap = 0;
1360
1361 switch (speed) {
1362 case SPEED_10:
1363 if (duplex == DUPLEX_FULL)
1364 cap = SUPPORTED_10baseT_Full;
1365 else
1366 cap = SUPPORTED_10baseT_Half;
1367 break;
1368 case SPEED_100:
1369 if (duplex == DUPLEX_FULL)
1370 cap = SUPPORTED_100baseT_Full;
1371 else
1372 cap = SUPPORTED_100baseT_Half;
1373 break;
1374 case SPEED_1000:
1375 if (duplex == DUPLEX_FULL)
1376 cap = SUPPORTED_1000baseT_Full;
1377 else
1378 cap = SUPPORTED_1000baseT_Half;
1379 break;
1380 case SPEED_10000:
1381 if (duplex == DUPLEX_FULL)
1382 cap = SUPPORTED_10000baseT_Full;
1383 }
1384 return cap;
1385 }
1386
1387 #define ADVERTISED_MASK (ADVERTISED_10baseT_Half | ADVERTISED_10baseT_Full | \
1388 ADVERTISED_100baseT_Half | ADVERTISED_100baseT_Full | \
1389 ADVERTISED_1000baseT_Half | ADVERTISED_1000baseT_Full | \
1390 ADVERTISED_10000baseT_Full)
1391
1392 static int set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
1393 {
1394 struct port_info *p = netdev_priv(dev);
1395 struct link_config *lc = &p->link_config;
1396
1397 if (!(lc->supported & SUPPORTED_Autoneg))
1398 return -EOPNOTSUPP; /* can't change speed/duplex */
1399
1400 if (cmd->autoneg == AUTONEG_DISABLE) {
1401 int cap = speed_duplex_to_caps(cmd->speed, cmd->duplex);
1402
1403 if (!(lc->supported & cap) || cmd->speed == SPEED_1000)
1404 return -EINVAL;
1405 lc->requested_speed = cmd->speed;
1406 lc->requested_duplex = cmd->duplex;
1407 lc->advertising = 0;
1408 } else {
1409 cmd->advertising &= ADVERTISED_MASK;
1410 cmd->advertising &= lc->supported;
1411 if (!cmd->advertising)
1412 return -EINVAL;
1413 lc->requested_speed = SPEED_INVALID;
1414 lc->requested_duplex = DUPLEX_INVALID;
1415 lc->advertising = cmd->advertising | ADVERTISED_Autoneg;
1416 }
1417 lc->autoneg = cmd->autoneg;
1418 if (netif_running(dev))
1419 t3_link_start(&p->phy, &p->mac, lc);
1420 return 0;
1421 }
1422
1423 static void get_pauseparam(struct net_device *dev,
1424 struct ethtool_pauseparam *epause)
1425 {
1426 struct port_info *p = netdev_priv(dev);
1427
1428 epause->autoneg = (p->link_config.requested_fc & PAUSE_AUTONEG) != 0;
1429 epause->rx_pause = (p->link_config.fc & PAUSE_RX) != 0;
1430 epause->tx_pause = (p->link_config.fc & PAUSE_TX) != 0;
1431 }
1432
1433 static int set_pauseparam(struct net_device *dev,
1434 struct ethtool_pauseparam *epause)
1435 {
1436 struct port_info *p = netdev_priv(dev);
1437 struct link_config *lc = &p->link_config;
1438
1439 if (epause->autoneg == AUTONEG_DISABLE)
1440 lc->requested_fc = 0;
1441 else if (lc->supported & SUPPORTED_Autoneg)
1442 lc->requested_fc = PAUSE_AUTONEG;
1443 else
1444 return -EINVAL;
1445
1446 if (epause->rx_pause)
1447 lc->requested_fc |= PAUSE_RX;
1448 if (epause->tx_pause)
1449 lc->requested_fc |= PAUSE_TX;
1450 if (lc->autoneg == AUTONEG_ENABLE) {
1451 if (netif_running(dev))
1452 t3_link_start(&p->phy, &p->mac, lc);
1453 } else {
1454 lc->fc = lc->requested_fc & (PAUSE_RX | PAUSE_TX);
1455 if (netif_running(dev))
1456 t3_mac_set_speed_duplex_fc(&p->mac, -1, -1, lc->fc);
1457 }
1458 return 0;
1459 }
1460
1461 static u32 get_rx_csum(struct net_device *dev)
1462 {
1463 struct port_info *p = netdev_priv(dev);
1464
1465 return p->rx_csum_offload;
1466 }
1467
1468 static int set_rx_csum(struct net_device *dev, u32 data)
1469 {
1470 struct port_info *p = netdev_priv(dev);
1471
1472 p->rx_csum_offload = data;
1473 return 0;
1474 }
1475
1476 static void get_sge_param(struct net_device *dev, struct ethtool_ringparam *e)
1477 {
1478 struct port_info *pi = netdev_priv(dev);
1479 struct adapter *adapter = pi->adapter;
1480 const struct qset_params *q = &adapter->params.sge.qset[pi->first_qset];
1481
1482 e->rx_max_pending = MAX_RX_BUFFERS;
1483 e->rx_mini_max_pending = 0;
1484 e->rx_jumbo_max_pending = MAX_RX_JUMBO_BUFFERS;
1485 e->tx_max_pending = MAX_TXQ_ENTRIES;
1486
1487 e->rx_pending = q->fl_size;
1488 e->rx_mini_pending = q->rspq_size;
1489 e->rx_jumbo_pending = q->jumbo_size;
1490 e->tx_pending = q->txq_size[0];
1491 }
1492
1493 static int set_sge_param(struct net_device *dev, struct ethtool_ringparam *e)
1494 {
1495 struct port_info *pi = netdev_priv(dev);
1496 struct adapter *adapter = pi->adapter;
1497 struct qset_params *q;
1498 int i;
1499
1500 if (e->rx_pending > MAX_RX_BUFFERS ||
1501 e->rx_jumbo_pending > MAX_RX_JUMBO_BUFFERS ||
1502 e->tx_pending > MAX_TXQ_ENTRIES ||
1503 e->rx_mini_pending > MAX_RSPQ_ENTRIES ||
1504 e->rx_mini_pending < MIN_RSPQ_ENTRIES ||
1505 e->rx_pending < MIN_FL_ENTRIES ||
1506 e->rx_jumbo_pending < MIN_FL_ENTRIES ||
1507 e->tx_pending < adapter->params.nports * MIN_TXQ_ENTRIES)
1508 return -EINVAL;
1509
1510 if (adapter->flags & FULL_INIT_DONE)
1511 return -EBUSY;
1512
1513 q = &adapter->params.sge.qset[pi->first_qset];
1514 for (i = 0; i < pi->nqsets; ++i, ++q) {
1515 q->rspq_size = e->rx_mini_pending;
1516 q->fl_size = e->rx_pending;
1517 q->jumbo_size = e->rx_jumbo_pending;
1518 q->txq_size[0] = e->tx_pending;
1519 q->txq_size[1] = e->tx_pending;
1520 q->txq_size[2] = e->tx_pending;
1521 }
1522 return 0;
1523 }
1524
1525 static int set_coalesce(struct net_device *dev, struct ethtool_coalesce *c)
1526 {
1527 struct port_info *pi = netdev_priv(dev);
1528 struct adapter *adapter = pi->adapter;
1529 struct qset_params *qsp = &adapter->params.sge.qset[0];
1530 struct sge_qset *qs = &adapter->sge.qs[0];
1531
1532 if (c->rx_coalesce_usecs * 10 > M_NEWTIMER)
1533 return -EINVAL;
1534
1535 qsp->coalesce_usecs = c->rx_coalesce_usecs;
1536 t3_update_qset_coalesce(qs, qsp);
1537 return 0;
1538 }
1539
1540 static int get_coalesce(struct net_device *dev, struct ethtool_coalesce *c)
1541 {
1542 struct port_info *pi = netdev_priv(dev);
1543 struct adapter *adapter = pi->adapter;
1544 struct qset_params *q = adapter->params.sge.qset;
1545
1546 c->rx_coalesce_usecs = q->coalesce_usecs;
1547 return 0;
1548 }
1549
1550 static int get_eeprom(struct net_device *dev, struct ethtool_eeprom *e,
1551 u8 * data)
1552 {
1553 struct port_info *pi = netdev_priv(dev);
1554 struct adapter *adapter = pi->adapter;
1555 int i, err = 0;
1556
1557 u8 *buf = kmalloc(EEPROMSIZE, GFP_KERNEL);
1558 if (!buf)
1559 return -ENOMEM;
1560
1561 e->magic = EEPROM_MAGIC;
1562 for (i = e->offset & ~3; !err && i < e->offset + e->len; i += 4)
1563 err = t3_seeprom_read(adapter, i, (u32 *) & buf[i]);
1564
1565 if (!err)
1566 memcpy(data, buf + e->offset, e->len);
1567 kfree(buf);
1568 return err;
1569 }
1570
1571 static int set_eeprom(struct net_device *dev, struct ethtool_eeprom *eeprom,
1572 u8 * data)
1573 {
1574 struct port_info *pi = netdev_priv(dev);
1575 struct adapter *adapter = pi->adapter;
1576 u32 aligned_offset, aligned_len, *p;
1577 u8 *buf;
1578 int err;
1579
1580 if (eeprom->magic != EEPROM_MAGIC)
1581 return -EINVAL;
1582
1583 aligned_offset = eeprom->offset & ~3;
1584 aligned_len = (eeprom->len + (eeprom->offset & 3) + 3) & ~3;
1585
1586 if (aligned_offset != eeprom->offset || aligned_len != eeprom->len) {
1587 buf = kmalloc(aligned_len, GFP_KERNEL);
1588 if (!buf)
1589 return -ENOMEM;
1590 err = t3_seeprom_read(adapter, aligned_offset, (u32 *) buf);
1591 if (!err && aligned_len > 4)
1592 err = t3_seeprom_read(adapter,
1593 aligned_offset + aligned_len - 4,
1594 (u32 *) & buf[aligned_len - 4]);
1595 if (err)
1596 goto out;
1597 memcpy(buf + (eeprom->offset & 3), data, eeprom->len);
1598 } else
1599 buf = data;
1600
1601 err = t3_seeprom_wp(adapter, 0);
1602 if (err)
1603 goto out;
1604
1605 for (p = (u32 *) buf; !err && aligned_len; aligned_len -= 4, p++) {
1606 err = t3_seeprom_write(adapter, aligned_offset, *p);
1607 aligned_offset += 4;
1608 }
1609
1610 if (!err)
1611 err = t3_seeprom_wp(adapter, 1);
1612 out:
1613 if (buf != data)
1614 kfree(buf);
1615 return err;
1616 }
1617
1618 static void get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
1619 {
1620 wol->supported = 0;
1621 wol->wolopts = 0;
1622 memset(&wol->sopass, 0, sizeof(wol->sopass));
1623 }
1624
1625 static const struct ethtool_ops cxgb_ethtool_ops = {
1626 .get_settings = get_settings,
1627 .set_settings = set_settings,
1628 .get_drvinfo = get_drvinfo,
1629 .get_msglevel = get_msglevel,
1630 .set_msglevel = set_msglevel,
1631 .get_ringparam = get_sge_param,
1632 .set_ringparam = set_sge_param,
1633 .get_coalesce = get_coalesce,
1634 .set_coalesce = set_coalesce,
1635 .get_eeprom_len = get_eeprom_len,
1636 .get_eeprom = get_eeprom,
1637 .set_eeprom = set_eeprom,
1638 .get_pauseparam = get_pauseparam,
1639 .set_pauseparam = set_pauseparam,
1640 .get_rx_csum = get_rx_csum,
1641 .set_rx_csum = set_rx_csum,
1642 .set_tx_csum = ethtool_op_set_tx_csum,
1643 .set_sg = ethtool_op_set_sg,
1644 .get_link = ethtool_op_get_link,
1645 .get_strings = get_strings,
1646 .phys_id = cxgb3_phys_id,
1647 .nway_reset = restart_autoneg,
1648 .get_sset_count = get_sset_count,
1649 .get_ethtool_stats = get_stats,
1650 .get_regs_len = get_regs_len,
1651 .get_regs = get_regs,
1652 .get_wol = get_wol,
1653 .set_tso = ethtool_op_set_tso,
1654 };
1655
1656 static int in_range(int val, int lo, int hi)
1657 {
1658 return val < 0 || (val <= hi && val >= lo);
1659 }
1660
1661 static int cxgb_extension_ioctl(struct net_device *dev, void __user *useraddr)
1662 {
1663 struct port_info *pi = netdev_priv(dev);
1664 struct adapter *adapter = pi->adapter;
1665 u32 cmd;
1666 int ret;
1667
1668 if (copy_from_user(&cmd, useraddr, sizeof(cmd)))
1669 return -EFAULT;
1670
1671 switch (cmd) {
1672 case CHELSIO_SET_QSET_PARAMS:{
1673 int i;
1674 struct qset_params *q;
1675 struct ch_qset_params t;
1676
1677 if (!capable(CAP_NET_ADMIN))
1678 return -EPERM;
1679 if (copy_from_user(&t, useraddr, sizeof(t)))
1680 return -EFAULT;
1681 if (t.qset_idx >= SGE_QSETS)
1682 return -EINVAL;
1683 if (!in_range(t.intr_lat, 0, M_NEWTIMER) ||
1684 !in_range(t.cong_thres, 0, 255) ||
1685 !in_range(t.txq_size[0], MIN_TXQ_ENTRIES,
1686 MAX_TXQ_ENTRIES) ||
1687 !in_range(t.txq_size[1], MIN_TXQ_ENTRIES,
1688 MAX_TXQ_ENTRIES) ||
1689 !in_range(t.txq_size[2], MIN_CTRL_TXQ_ENTRIES,
1690 MAX_CTRL_TXQ_ENTRIES) ||
1691 !in_range(t.fl_size[0], MIN_FL_ENTRIES,
1692 MAX_RX_BUFFERS)
1693 || !in_range(t.fl_size[1], MIN_FL_ENTRIES,
1694 MAX_RX_JUMBO_BUFFERS)
1695 || !in_range(t.rspq_size, MIN_RSPQ_ENTRIES,
1696 MAX_RSPQ_ENTRIES))
1697 return -EINVAL;
1698 if ((adapter->flags & FULL_INIT_DONE) &&
1699 (t.rspq_size >= 0 || t.fl_size[0] >= 0 ||
1700 t.fl_size[1] >= 0 || t.txq_size[0] >= 0 ||
1701 t.txq_size[1] >= 0 || t.txq_size[2] >= 0 ||
1702 t.polling >= 0 || t.cong_thres >= 0))
1703 return -EBUSY;
1704
1705 q = &adapter->params.sge.qset[t.qset_idx];
1706
1707 if (t.rspq_size >= 0)
1708 q->rspq_size = t.rspq_size;
1709 if (t.fl_size[0] >= 0)
1710 q->fl_size = t.fl_size[0];
1711 if (t.fl_size[1] >= 0)
1712 q->jumbo_size = t.fl_size[1];
1713 if (t.txq_size[0] >= 0)
1714 q->txq_size[0] = t.txq_size[0];
1715 if (t.txq_size[1] >= 0)
1716 q->txq_size[1] = t.txq_size[1];
1717 if (t.txq_size[2] >= 0)
1718 q->txq_size[2] = t.txq_size[2];
1719 if (t.cong_thres >= 0)
1720 q->cong_thres = t.cong_thres;
1721 if (t.intr_lat >= 0) {
1722 struct sge_qset *qs =
1723 &adapter->sge.qs[t.qset_idx];
1724
1725 q->coalesce_usecs = t.intr_lat;
1726 t3_update_qset_coalesce(qs, q);
1727 }
1728 if (t.polling >= 0) {
1729 if (adapter->flags & USING_MSIX)
1730 q->polling = t.polling;
1731 else {
1732 /* No polling with INTx for T3A */
1733 if (adapter->params.rev == 0 &&
1734 !(adapter->flags & USING_MSI))
1735 t.polling = 0;
1736
1737 for (i = 0; i < SGE_QSETS; i++) {
1738 q = &adapter->params.sge.
1739 qset[i];
1740 q->polling = t.polling;
1741 }
1742 }
1743 }
1744 break;
1745 }
1746 case CHELSIO_GET_QSET_PARAMS:{
1747 struct qset_params *q;
1748 struct ch_qset_params t;
1749
1750 if (copy_from_user(&t, useraddr, sizeof(t)))
1751 return -EFAULT;
1752 if (t.qset_idx >= SGE_QSETS)
1753 return -EINVAL;
1754
1755 q = &adapter->params.sge.qset[t.qset_idx];
1756 t.rspq_size = q->rspq_size;
1757 t.txq_size[0] = q->txq_size[0];
1758 t.txq_size[1] = q->txq_size[1];
1759 t.txq_size[2] = q->txq_size[2];
1760 t.fl_size[0] = q->fl_size;
1761 t.fl_size[1] = q->jumbo_size;
1762 t.polling = q->polling;
1763 t.intr_lat = q->coalesce_usecs;
1764 t.cong_thres = q->cong_thres;
1765
1766 if (copy_to_user(useraddr, &t, sizeof(t)))
1767 return -EFAULT;
1768 break;
1769 }
1770 case CHELSIO_SET_QSET_NUM:{
1771 struct ch_reg edata;
1772 unsigned int i, first_qset = 0, other_qsets = 0;
1773
1774 if (!capable(CAP_NET_ADMIN))
1775 return -EPERM;
1776 if (adapter->flags & FULL_INIT_DONE)
1777 return -EBUSY;
1778 if (copy_from_user(&edata, useraddr, sizeof(edata)))
1779 return -EFAULT;
1780 if (edata.val < 1 ||
1781 (edata.val > 1 && !(adapter->flags & USING_MSIX)))
1782 return -EINVAL;
1783
1784 for_each_port(adapter, i)
1785 if (adapter->port[i] && adapter->port[i] != dev)
1786 other_qsets += adap2pinfo(adapter, i)->nqsets;
1787
1788 if (edata.val + other_qsets > SGE_QSETS)
1789 return -EINVAL;
1790
1791 pi->nqsets = edata.val;
1792
1793 for_each_port(adapter, i)
1794 if (adapter->port[i]) {
1795 pi = adap2pinfo(adapter, i);
1796 pi->first_qset = first_qset;
1797 first_qset += pi->nqsets;
1798 }
1799 break;
1800 }
1801 case CHELSIO_GET_QSET_NUM:{
1802 struct ch_reg edata;
1803
1804 edata.cmd = CHELSIO_GET_QSET_NUM;
1805 edata.val = pi->nqsets;
1806 if (copy_to_user(useraddr, &edata, sizeof(edata)))
1807 return -EFAULT;
1808 break;
1809 }
1810 case CHELSIO_LOAD_FW:{
1811 u8 *fw_data;
1812 struct ch_mem_range t;
1813
1814 if (!capable(CAP_NET_ADMIN))
1815 return -EPERM;
1816 if (copy_from_user(&t, useraddr, sizeof(t)))
1817 return -EFAULT;
1818
1819 fw_data = kmalloc(t.len, GFP_KERNEL);
1820 if (!fw_data)
1821 return -ENOMEM;
1822
1823 if (copy_from_user
1824 (fw_data, useraddr + sizeof(t), t.len)) {
1825 kfree(fw_data);
1826 return -EFAULT;
1827 }
1828
1829 ret = t3_load_fw(adapter, fw_data, t.len);
1830 kfree(fw_data);
1831 if (ret)
1832 return ret;
1833 break;
1834 }
1835 case CHELSIO_SETMTUTAB:{
1836 struct ch_mtus m;
1837 int i;
1838
1839 if (!is_offload(adapter))
1840 return -EOPNOTSUPP;
1841 if (!capable(CAP_NET_ADMIN))
1842 return -EPERM;
1843 if (offload_running(adapter))
1844 return -EBUSY;
1845 if (copy_from_user(&m, useraddr, sizeof(m)))
1846 return -EFAULT;
1847 if (m.nmtus != NMTUS)
1848 return -EINVAL;
1849 if (m.mtus[0] < 81) /* accommodate SACK */
1850 return -EINVAL;
1851
1852 /* MTUs must be in ascending order */
1853 for (i = 1; i < NMTUS; ++i)
1854 if (m.mtus[i] < m.mtus[i - 1])
1855 return -EINVAL;
1856
1857 memcpy(adapter->params.mtus, m.mtus,
1858 sizeof(adapter->params.mtus));
1859 break;
1860 }
1861 case CHELSIO_GET_PM:{
1862 struct tp_params *p = &adapter->params.tp;
1863 struct ch_pm m = {.cmd = CHELSIO_GET_PM };
1864
1865 if (!is_offload(adapter))
1866 return -EOPNOTSUPP;
1867 m.tx_pg_sz = p->tx_pg_size;
1868 m.tx_num_pg = p->tx_num_pgs;
1869 m.rx_pg_sz = p->rx_pg_size;
1870 m.rx_num_pg = p->rx_num_pgs;
1871 m.pm_total = p->pmtx_size + p->chan_rx_size * p->nchan;
1872 if (copy_to_user(useraddr, &m, sizeof(m)))
1873 return -EFAULT;
1874 break;
1875 }
1876 case CHELSIO_SET_PM:{
1877 struct ch_pm m;
1878 struct tp_params *p = &adapter->params.tp;
1879
1880 if (!is_offload(adapter))
1881 return -EOPNOTSUPP;
1882 if (!capable(CAP_NET_ADMIN))
1883 return -EPERM;
1884 if (adapter->flags & FULL_INIT_DONE)
1885 return -EBUSY;
1886 if (copy_from_user(&m, useraddr, sizeof(m)))
1887 return -EFAULT;
1888 if (!is_power_of_2(m.rx_pg_sz) ||
1889 !is_power_of_2(m.tx_pg_sz))
1890 return -EINVAL; /* not power of 2 */
1891 if (!(m.rx_pg_sz & 0x14000))
1892 return -EINVAL; /* not 16KB or 64KB */
1893 if (!(m.tx_pg_sz & 0x1554000))
1894 return -EINVAL;
1895 if (m.tx_num_pg == -1)
1896 m.tx_num_pg = p->tx_num_pgs;
1897 if (m.rx_num_pg == -1)
1898 m.rx_num_pg = p->rx_num_pgs;
1899 if (m.tx_num_pg % 24 || m.rx_num_pg % 24)
1900 return -EINVAL;
1901 if (m.rx_num_pg * m.rx_pg_sz > p->chan_rx_size ||
1902 m.tx_num_pg * m.tx_pg_sz > p->chan_tx_size)
1903 return -EINVAL;
1904 p->rx_pg_size = m.rx_pg_sz;
1905 p->tx_pg_size = m.tx_pg_sz;
1906 p->rx_num_pgs = m.rx_num_pg;
1907 p->tx_num_pgs = m.tx_num_pg;
1908 break;
1909 }
1910 case CHELSIO_GET_MEM:{
1911 struct ch_mem_range t;
1912 struct mc7 *mem;
1913 u64 buf[32];
1914
1915 if (!is_offload(adapter))
1916 return -EOPNOTSUPP;
1917 if (!(adapter->flags & FULL_INIT_DONE))
1918 return -EIO; /* need the memory controllers */
1919 if (copy_from_user(&t, useraddr, sizeof(t)))
1920 return -EFAULT;
1921 if ((t.addr & 7) || (t.len & 7))
1922 return -EINVAL;
1923 if (t.mem_id == MEM_CM)
1924 mem = &adapter->cm;
1925 else if (t.mem_id == MEM_PMRX)
1926 mem = &adapter->pmrx;
1927 else if (t.mem_id == MEM_PMTX)
1928 mem = &adapter->pmtx;
1929 else
1930 return -EINVAL;
1931
1932 /*
1933 * Version scheme:
1934 * bits 0..9: chip version
1935 * bits 10..15: chip revision
1936 */
1937 t.version = 3 | (adapter->params.rev << 10);
1938 if (copy_to_user(useraddr, &t, sizeof(t)))
1939 return -EFAULT;
1940
1941 /*
1942 * Read 256 bytes at a time as len can be large and we don't
1943 * want to use huge intermediate buffers.
1944 */
1945 useraddr += sizeof(t); /* advance to start of buffer */
1946 while (t.len) {
1947 unsigned int chunk =
1948 min_t(unsigned int, t.len, sizeof(buf));
1949
1950 ret =
1951 t3_mc7_bd_read(mem, t.addr / 8, chunk / 8,
1952 buf);
1953 if (ret)
1954 return ret;
1955 if (copy_to_user(useraddr, buf, chunk))
1956 return -EFAULT;
1957 useraddr += chunk;
1958 t.addr += chunk;
1959 t.len -= chunk;
1960 }
1961 break;
1962 }
1963 case CHELSIO_SET_TRACE_FILTER:{
1964 struct ch_trace t;
1965 const struct trace_params *tp;
1966
1967 if (!capable(CAP_NET_ADMIN))
1968 return -EPERM;
1969 if (!offload_running(adapter))
1970 return -EAGAIN;
1971 if (copy_from_user(&t, useraddr, sizeof(t)))
1972 return -EFAULT;
1973
1974 tp = (const struct trace_params *)&t.sip;
1975 if (t.config_tx)
1976 t3_config_trace_filter(adapter, tp, 0,
1977 t.invert_match,
1978 t.trace_tx);
1979 if (t.config_rx)
1980 t3_config_trace_filter(adapter, tp, 1,
1981 t.invert_match,
1982 t.trace_rx);
1983 break;
1984 }
1985 default:
1986 return -EOPNOTSUPP;
1987 }
1988 return 0;
1989 }
1990
1991 static int cxgb_ioctl(struct net_device *dev, struct ifreq *req, int cmd)
1992 {
1993 struct mii_ioctl_data *data = if_mii(req);
1994 struct port_info *pi = netdev_priv(dev);
1995 struct adapter *adapter = pi->adapter;
1996 int ret, mmd;
1997
1998 switch (cmd) {
1999 case SIOCGMIIPHY:
2000 data->phy_id = pi->phy.addr;
2001 /* FALLTHRU */
2002 case SIOCGMIIREG:{
2003 u32 val;
2004 struct cphy *phy = &pi->phy;
2005
2006 if (!phy->mdio_read)
2007 return -EOPNOTSUPP;
2008 if (is_10G(adapter)) {
2009 mmd = data->phy_id >> 8;
2010 if (!mmd)
2011 mmd = MDIO_DEV_PCS;
2012 else if (mmd > MDIO_DEV_XGXS)
2013 return -EINVAL;
2014
2015 ret =
2016 phy->mdio_read(adapter, data->phy_id & 0x1f,
2017 mmd, data->reg_num, &val);
2018 } else
2019 ret =
2020 phy->mdio_read(adapter, data->phy_id & 0x1f,
2021 0, data->reg_num & 0x1f,
2022 &val);
2023 if (!ret)
2024 data->val_out = val;
2025 break;
2026 }
2027 case SIOCSMIIREG:{
2028 struct cphy *phy = &pi->phy;
2029
2030 if (!capable(CAP_NET_ADMIN))
2031 return -EPERM;
2032 if (!phy->mdio_write)
2033 return -EOPNOTSUPP;
2034 if (is_10G(adapter)) {
2035 mmd = data->phy_id >> 8;
2036 if (!mmd)
2037 mmd = MDIO_DEV_PCS;
2038 else if (mmd > MDIO_DEV_XGXS)
2039 return -EINVAL;
2040
2041 ret =
2042 phy->mdio_write(adapter,
2043 data->phy_id & 0x1f, mmd,
2044 data->reg_num,
2045 data->val_in);
2046 } else
2047 ret =
2048 phy->mdio_write(adapter,
2049 data->phy_id & 0x1f, 0,
2050 data->reg_num & 0x1f,
2051 data->val_in);
2052 break;
2053 }
2054 case SIOCCHIOCTL:
2055 return cxgb_extension_ioctl(dev, req->ifr_data);
2056 default:
2057 return -EOPNOTSUPP;
2058 }
2059 return ret;
2060 }
2061
2062 static int cxgb_change_mtu(struct net_device *dev, int new_mtu)
2063 {
2064 struct port_info *pi = netdev_priv(dev);
2065 struct adapter *adapter = pi->adapter;
2066 int ret;
2067
2068 if (new_mtu < 81) /* accommodate SACK */
2069 return -EINVAL;
2070 if ((ret = t3_mac_set_mtu(&pi->mac, new_mtu)))
2071 return ret;
2072 dev->mtu = new_mtu;
2073 init_port_mtus(adapter);
2074 if (adapter->params.rev == 0 && offload_running(adapter))
2075 t3_load_mtus(adapter, adapter->params.mtus,
2076 adapter->params.a_wnd, adapter->params.b_wnd,
2077 adapter->port[0]->mtu);
2078 return 0;
2079 }
2080
2081 static int cxgb_set_mac_addr(struct net_device *dev, void *p)
2082 {
2083 struct port_info *pi = netdev_priv(dev);
2084 struct adapter *adapter = pi->adapter;
2085 struct sockaddr *addr = p;
2086
2087 if (!is_valid_ether_addr(addr->sa_data))
2088 return -EINVAL;
2089
2090 memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
2091 t3_mac_set_address(&pi->mac, 0, dev->dev_addr);
2092 if (offload_running(adapter))
2093 write_smt_entry(adapter, pi->port_id);
2094 return 0;
2095 }
2096
2097 /**
2098 * t3_synchronize_rx - wait for current Rx processing on a port to complete
2099 * @adap: the adapter
2100 * @p: the port
2101 *
2102 * Ensures that current Rx processing on any of the queues associated with
2103 * the given port completes before returning. We do this by acquiring and
2104 * releasing the locks of the response queues associated with the port.
2105 */
2106 static void t3_synchronize_rx(struct adapter *adap, const struct port_info *p)
2107 {
2108 int i;
2109
2110 for (i = 0; i < p->nqsets; i++) {
2111 struct sge_rspq *q = &adap->sge.qs[i + p->first_qset].rspq;
2112
2113 spin_lock_irq(&q->lock);
2114 spin_unlock_irq(&q->lock);
2115 }
2116 }
2117
2118 static void vlan_rx_register(struct net_device *dev, struct vlan_group *grp)
2119 {
2120 struct port_info *pi = netdev_priv(dev);
2121 struct adapter *adapter = pi->adapter;
2122
2123 pi->vlan_grp = grp;
2124 if (adapter->params.rev > 0)
2125 t3_set_vlan_accel(adapter, 1 << pi->port_id, grp != NULL);
2126 else {
2127 /* single control for all ports */
2128 unsigned int i, have_vlans = 0;
2129 for_each_port(adapter, i)
2130 have_vlans |= adap2pinfo(adapter, i)->vlan_grp != NULL;
2131
2132 t3_set_vlan_accel(adapter, 1, have_vlans);
2133 }
2134 t3_synchronize_rx(adapter, pi);
2135 }
2136
2137 #ifdef CONFIG_NET_POLL_CONTROLLER
2138 static void cxgb_netpoll(struct net_device *dev)
2139 {
2140 struct port_info *pi = netdev_priv(dev);
2141 struct adapter *adapter = pi->adapter;
2142 int qidx;
2143
2144 for (qidx = pi->first_qset; qidx < pi->first_qset + pi->nqsets; qidx++) {
2145 struct sge_qset *qs = &adapter->sge.qs[qidx];
2146 void *source;
2147
2148 if (adapter->flags & USING_MSIX)
2149 source = qs;
2150 else
2151 source = adapter;
2152
2153 t3_intr_handler(adapter, qs->rspq.polling) (0, source);
2154 }
2155 }
2156 #endif
2157
2158 /*
2159 * Periodic accumulation of MAC statistics.
2160 */
2161 static void mac_stats_update(struct adapter *adapter)
2162 {
2163 int i;
2164
2165 for_each_port(adapter, i) {
2166 struct net_device *dev = adapter->port[i];
2167 struct port_info *p = netdev_priv(dev);
2168
2169 if (netif_running(dev)) {
2170 spin_lock(&adapter->stats_lock);
2171 t3_mac_update_stats(&p->mac);
2172 spin_unlock(&adapter->stats_lock);
2173 }
2174 }
2175 }
2176
2177 static void check_link_status(struct adapter *adapter)
2178 {
2179 int i;
2180
2181 for_each_port(adapter, i) {
2182 struct net_device *dev = adapter->port[i];
2183 struct port_info *p = netdev_priv(dev);
2184
2185 if (!(p->port_type->caps & SUPPORTED_IRQ) && netif_running(dev))
2186 t3_link_changed(adapter, i);
2187 }
2188 }
2189
2190 static void check_t3b2_mac(struct adapter *adapter)
2191 {
2192 int i;
2193
2194 if (!rtnl_trylock()) /* synchronize with ifdown */
2195 return;
2196
2197 for_each_port(adapter, i) {
2198 struct net_device *dev = adapter->port[i];
2199 struct port_info *p = netdev_priv(dev);
2200 int status;
2201
2202 if (!netif_running(dev))
2203 continue;
2204
2205 status = 0;
2206 if (netif_running(dev) && netif_carrier_ok(dev))
2207 status = t3b2_mac_watchdog_task(&p->mac);
2208 if (status == 1)
2209 p->mac.stats.num_toggled++;
2210 else if (status == 2) {
2211 struct cmac *mac = &p->mac;
2212
2213 t3_mac_set_mtu(mac, dev->mtu);
2214 t3_mac_set_address(mac, 0, dev->dev_addr);
2215 cxgb_set_rxmode(dev);
2216 t3_link_start(&p->phy, mac, &p->link_config);
2217 t3_mac_enable(mac, MAC_DIRECTION_RX | MAC_DIRECTION_TX);
2218 t3_port_intr_enable(adapter, p->port_id);
2219 p->mac.stats.num_resets++;
2220 }
2221 }
2222 rtnl_unlock();
2223 }
2224
2225
2226 static void t3_adap_check_task(struct work_struct *work)
2227 {
2228 struct adapter *adapter = container_of(work, struct adapter,
2229 adap_check_task.work);
2230 const struct adapter_params *p = &adapter->params;
2231
2232 adapter->check_task_cnt++;
2233
2234 /* Check link status for PHYs without interrupts */
2235 if (p->linkpoll_period)
2236 check_link_status(adapter);
2237
2238 /* Accumulate MAC stats if needed */
2239 if (!p->linkpoll_period ||
2240 (adapter->check_task_cnt * p->linkpoll_period) / 10 >=
2241 p->stats_update_period) {
2242 mac_stats_update(adapter);
2243 adapter->check_task_cnt = 0;
2244 }
2245
2246 if (p->rev == T3_REV_B2)
2247 check_t3b2_mac(adapter);
2248
2249 /* Schedule the next check update if any port is active. */
2250 spin_lock(&adapter->work_lock);
2251 if (adapter->open_device_map & PORT_MASK)
2252 schedule_chk_task(adapter);
2253 spin_unlock(&adapter->work_lock);
2254 }
2255
2256 /*
2257 * Processes external (PHY) interrupts in process context.
2258 */
2259 static void ext_intr_task(struct work_struct *work)
2260 {
2261 struct adapter *adapter = container_of(work, struct adapter,
2262 ext_intr_handler_task);
2263
2264 t3_phy_intr_handler(adapter);
2265
2266 /* Now reenable external interrupts */
2267 spin_lock_irq(&adapter->work_lock);
2268 if (adapter->slow_intr_mask) {
2269 adapter->slow_intr_mask |= F_T3DBG;
2270 t3_write_reg(adapter, A_PL_INT_CAUSE0, F_T3DBG);
2271 t3_write_reg(adapter, A_PL_INT_ENABLE0,
2272 adapter->slow_intr_mask);
2273 }
2274 spin_unlock_irq(&adapter->work_lock);
2275 }
2276
2277 /*
2278 * Interrupt-context handler for external (PHY) interrupts.
2279 */
2280 void t3_os_ext_intr_handler(struct adapter *adapter)
2281 {
2282 /*
2283 * Schedule a task to handle external interrupts as they may be slow
2284 * and we use a mutex to protect MDIO registers. We disable PHY
2285 * interrupts in the meantime and let the task reenable them when
2286 * it's done.
2287 */
2288 spin_lock(&adapter->work_lock);
2289 if (adapter->slow_intr_mask) {
2290 adapter->slow_intr_mask &= ~F_T3DBG;
2291 t3_write_reg(adapter, A_PL_INT_ENABLE0,
2292 adapter->slow_intr_mask);
2293 queue_work(cxgb3_wq, &adapter->ext_intr_handler_task);
2294 }
2295 spin_unlock(&adapter->work_lock);
2296 }
2297
2298 void t3_fatal_err(struct adapter *adapter)
2299 {
2300 unsigned int fw_status[4];
2301
2302 if (adapter->flags & FULL_INIT_DONE) {
2303 t3_sge_stop(adapter);
2304 t3_write_reg(adapter, A_XGM_TX_CTRL, 0);
2305 t3_write_reg(adapter, A_XGM_RX_CTRL, 0);
2306 t3_write_reg(adapter, XGM_REG(A_XGM_TX_CTRL, 1), 0);
2307 t3_write_reg(adapter, XGM_REG(A_XGM_RX_CTRL, 1), 0);
2308 t3_intr_disable(adapter);
2309 }
2310 CH_ALERT(adapter, "encountered fatal error, operation suspended\n");
2311 if (!t3_cim_ctl_blk_read(adapter, 0xa0, 4, fw_status))
2312 CH_ALERT(adapter, "FW status: 0x%x, 0x%x, 0x%x, 0x%x\n",
2313 fw_status[0], fw_status[1],
2314 fw_status[2], fw_status[3]);
2315
2316 }
2317
2318 static int __devinit cxgb_enable_msix(struct adapter *adap)
2319 {
2320 struct msix_entry entries[SGE_QSETS + 1];
2321 int i, err;
2322
2323 for (i = 0; i < ARRAY_SIZE(entries); ++i)
2324 entries[i].entry = i;
2325
2326 err = pci_enable_msix(adap->pdev, entries, ARRAY_SIZE(entries));
2327 if (!err) {
2328 for (i = 0; i < ARRAY_SIZE(entries); ++i)
2329 adap->msix_info[i].vec = entries[i].vector;
2330 } else if (err > 0)
2331 dev_info(&adap->pdev->dev,
2332 "only %d MSI-X vectors left, not using MSI-X\n", err);
2333 return err;
2334 }
2335
2336 static void __devinit print_port_info(struct adapter *adap,
2337 const struct adapter_info *ai)
2338 {
2339 static const char *pci_variant[] = {
2340 "PCI", "PCI-X", "PCI-X ECC", "PCI-X 266", "PCI Express"
2341 };
2342
2343 int i;
2344 char buf[80];
2345
2346 if (is_pcie(adap))
2347 snprintf(buf, sizeof(buf), "%s x%d",
2348 pci_variant[adap->params.pci.variant],
2349 adap->params.pci.width);
2350 else
2351 snprintf(buf, sizeof(buf), "%s %dMHz/%d-bit",
2352 pci_variant[adap->params.pci.variant],
2353 adap->params.pci.speed, adap->params.pci.width);
2354
2355 for_each_port(adap, i) {
2356 struct net_device *dev = adap->port[i];
2357 const struct port_info *pi = netdev_priv(dev);
2358
2359 if (!test_bit(i, &adap->registered_device_map))
2360 continue;
2361 printk(KERN_INFO "%s: %s %s %sNIC (rev %d) %s%s\n",
2362 dev->name, ai->desc, pi->port_type->desc,
2363 is_offload(adap) ? "R" : "", adap->params.rev, buf,
2364 (adap->flags & USING_MSIX) ? " MSI-X" :
2365 (adap->flags & USING_MSI) ? " MSI" : "");
2366 if (adap->name == dev->name && adap->params.vpd.mclk)
2367 printk(KERN_INFO
2368 "%s: %uMB CM, %uMB PMTX, %uMB PMRX, S/N: %s\n",
2369 adap->name, t3_mc7_size(&adap->cm) >> 20,
2370 t3_mc7_size(&adap->pmtx) >> 20,
2371 t3_mc7_size(&adap->pmrx) >> 20,
2372 adap->params.vpd.sn);
2373 }
2374 }
2375
2376 static int __devinit init_one(struct pci_dev *pdev,
2377 const struct pci_device_id *ent)
2378 {
2379 static int version_printed;
2380
2381 int i, err, pci_using_dac = 0;
2382 unsigned long mmio_start, mmio_len;
2383 const struct adapter_info *ai;
2384 struct adapter *adapter = NULL;
2385 struct port_info *pi;
2386
2387 if (!version_printed) {
2388 printk(KERN_INFO "%s - version %s\n", DRV_DESC, DRV_VERSION);
2389 ++version_printed;
2390 }
2391
2392 if (!cxgb3_wq) {
2393 cxgb3_wq = create_singlethread_workqueue(DRV_NAME);
2394 if (!cxgb3_wq) {
2395 printk(KERN_ERR DRV_NAME
2396 ": cannot initialize work queue\n");
2397 return -ENOMEM;
2398 }
2399 }
2400
2401 err = pci_request_regions(pdev, DRV_NAME);
2402 if (err) {
2403 /* Just info, some other driver may have claimed the device. */
2404 dev_info(&pdev->dev, "cannot obtain PCI resources\n");
2405 return err;
2406 }
2407
2408 err = pci_enable_device(pdev);
2409 if (err) {
2410 dev_err(&pdev->dev, "cannot enable PCI device\n");
2411 goto out_release_regions;
2412 }
2413
2414 if (!pci_set_dma_mask(pdev, DMA_64BIT_MASK)) {
2415 pci_using_dac = 1;
2416 err = pci_set_consistent_dma_mask(pdev, DMA_64BIT_MASK);
2417 if (err) {
2418 dev_err(&pdev->dev, "unable to obtain 64-bit DMA for "
2419 "coherent allocations\n");
2420 goto out_disable_device;
2421 }
2422 } else if ((err = pci_set_dma_mask(pdev, DMA_32BIT_MASK)) != 0) {
2423 dev_err(&pdev->dev, "no usable DMA configuration\n");
2424 goto out_disable_device;
2425 }
2426
2427 pci_set_master(pdev);
2428
2429 mmio_start = pci_resource_start(pdev, 0);
2430 mmio_len = pci_resource_len(pdev, 0);
2431 ai = t3_get_adapter_info(ent->driver_data);
2432
2433 adapter = kzalloc(sizeof(*adapter), GFP_KERNEL);
2434 if (!adapter) {
2435 err = -ENOMEM;
2436 goto out_disable_device;
2437 }
2438
2439 adapter->regs = ioremap_nocache(mmio_start, mmio_len);
2440 if (!adapter->regs) {
2441 dev_err(&pdev->dev, "cannot map device registers\n");
2442 err = -ENOMEM;
2443 goto out_free_adapter;
2444 }
2445
2446 adapter->pdev = pdev;
2447 adapter->name = pci_name(pdev);
2448 adapter->msg_enable = dflt_msg_enable;
2449 adapter->mmio_len = mmio_len;
2450
2451 mutex_init(&adapter->mdio_lock);
2452 spin_lock_init(&adapter->work_lock);
2453 spin_lock_init(&adapter->stats_lock);
2454
2455 INIT_LIST_HEAD(&adapter->adapter_list);
2456 INIT_WORK(&adapter->ext_intr_handler_task, ext_intr_task);
2457 INIT_DELAYED_WORK(&adapter->adap_check_task, t3_adap_check_task);
2458
2459 for (i = 0; i < ai->nports; ++i) {
2460 struct net_device *netdev;
2461
2462 netdev = alloc_etherdev(sizeof(struct port_info));
2463 if (!netdev) {
2464 err = -ENOMEM;
2465 goto out_free_dev;
2466 }
2467
2468 SET_NETDEV_DEV(netdev, &pdev->dev);
2469
2470 adapter->port[i] = netdev;
2471 pi = netdev_priv(netdev);
2472 pi->adapter = adapter;
2473 pi->rx_csum_offload = 1;
2474 pi->nqsets = 1;
2475 pi->first_qset = i;
2476 pi->activity = 0;
2477 pi->port_id = i;
2478 netif_carrier_off(netdev);
2479 netdev->irq = pdev->irq;
2480 netdev->mem_start = mmio_start;
2481 netdev->mem_end = mmio_start + mmio_len - 1;
2482 netdev->features |= NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO;
2483 netdev->features |= NETIF_F_LLTX;
2484 if (pci_using_dac)
2485 netdev->features |= NETIF_F_HIGHDMA;
2486
2487 netdev->features |= NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX;
2488 netdev->vlan_rx_register = vlan_rx_register;
2489
2490 netdev->open = cxgb_open;
2491 netdev->stop = cxgb_close;
2492 netdev->hard_start_xmit = t3_eth_xmit;
2493 netdev->get_stats = cxgb_get_stats;
2494 netdev->set_multicast_list = cxgb_set_rxmode;
2495 netdev->do_ioctl = cxgb_ioctl;
2496 netdev->change_mtu = cxgb_change_mtu;
2497 netdev->set_mac_address = cxgb_set_mac_addr;
2498 #ifdef CONFIG_NET_POLL_CONTROLLER
2499 netdev->poll_controller = cxgb_netpoll;
2500 #endif
2501
2502 SET_ETHTOOL_OPS(netdev, &cxgb_ethtool_ops);
2503 }
2504
2505 pci_set_drvdata(pdev, adapter);
2506 if (t3_prep_adapter(adapter, ai, 1) < 0) {
2507 err = -ENODEV;
2508 goto out_free_dev;
2509 }
2510
2511 /*
2512 * The card is now ready to go. If any errors occur during device
2513 * registration we do not fail the whole card but rather proceed only
2514 * with the ports we manage to register successfully. However we must
2515 * register at least one net device.
2516 */
2517 for_each_port(adapter, i) {
2518 err = register_netdev(adapter->port[i]);
2519 if (err)
2520 dev_warn(&pdev->dev,
2521 "cannot register net device %s, skipping\n",
2522 adapter->port[i]->name);
2523 else {
2524 /*
2525 * Change the name we use for messages to the name of
2526 * the first successfully registered interface.
2527 */
2528 if (!adapter->registered_device_map)
2529 adapter->name = adapter->port[i]->name;
2530
2531 __set_bit(i, &adapter->registered_device_map);
2532 }
2533 }
2534 if (!adapter->registered_device_map) {
2535 dev_err(&pdev->dev, "could not register any net devices\n");
2536 goto out_free_dev;
2537 }
2538
2539 /* Driver's ready. Reflect it on LEDs */
2540 t3_led_ready(adapter);
2541
2542 if (is_offload(adapter)) {
2543 __set_bit(OFFLOAD_DEVMAP_BIT, &adapter->registered_device_map);
2544 cxgb3_adapter_ofld(adapter);
2545 }
2546
2547 /* See what interrupts we'll be using */
2548 if (msi > 1 && cxgb_enable_msix(adapter) == 0)
2549 adapter->flags |= USING_MSIX;
2550 else if (msi > 0 && pci_enable_msi(pdev) == 0)
2551 adapter->flags |= USING_MSI;
2552
2553 err = sysfs_create_group(&adapter->port[0]->dev.kobj,
2554 &cxgb3_attr_group);
2555
2556 print_port_info(adapter, ai);
2557 return 0;
2558
2559 out_free_dev:
2560 iounmap(adapter->regs);
2561 for (i = ai->nports - 1; i >= 0; --i)
2562 if (adapter->port[i])
2563 free_netdev(adapter->port[i]);
2564
2565 out_free_adapter:
2566 kfree(adapter);
2567
2568 out_disable_device:
2569 pci_disable_device(pdev);
2570 out_release_regions:
2571 pci_release_regions(pdev);
2572 pci_set_drvdata(pdev, NULL);
2573 return err;
2574 }
2575
2576 static void __devexit remove_one(struct pci_dev *pdev)
2577 {
2578 struct adapter *adapter = pci_get_drvdata(pdev);
2579
2580 if (adapter) {
2581 int i;
2582
2583 t3_sge_stop(adapter);
2584 sysfs_remove_group(&adapter->port[0]->dev.kobj,
2585 &cxgb3_attr_group);
2586
2587 for_each_port(adapter, i)
2588 if (test_bit(i, &adapter->registered_device_map))
2589 unregister_netdev(adapter->port[i]);
2590
2591 if (is_offload(adapter)) {
2592 cxgb3_adapter_unofld(adapter);
2593 if (test_bit(OFFLOAD_DEVMAP_BIT,
2594 &adapter->open_device_map))
2595 offload_close(&adapter->tdev);
2596 }
2597
2598 t3_free_sge_resources(adapter);
2599 cxgb_disable_msi(adapter);
2600
2601 for_each_port(adapter, i)
2602 if (adapter->port[i])
2603 free_netdev(adapter->port[i]);
2604
2605 iounmap(adapter->regs);
2606 kfree(adapter);
2607 pci_release_regions(pdev);
2608 pci_disable_device(pdev);
2609 pci_set_drvdata(pdev, NULL);
2610 }
2611 }
2612
2613 static struct pci_driver driver = {
2614 .name = DRV_NAME,
2615 .id_table = cxgb3_pci_tbl,
2616 .probe = init_one,
2617 .remove = __devexit_p(remove_one),
2618 };
2619
2620 static int __init cxgb3_init_module(void)
2621 {
2622 int ret;
2623
2624 cxgb3_offload_init();
2625
2626 ret = pci_register_driver(&driver);
2627 return ret;
2628 }
2629
2630 static void __exit cxgb3_cleanup_module(void)
2631 {
2632 pci_unregister_driver(&driver);
2633 if (cxgb3_wq)
2634 destroy_workqueue(cxgb3_wq);
2635 }
2636
2637 module_init(cxgb3_init_module);
2638 module_exit(cxgb3_cleanup_module);
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