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4d22de3e | 1 | /* |
1d68e93d | 2 | * Copyright (c) 2003-2007 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> | |
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 <asm/uaccess.h> | |
46 | ||
47 | #include "common.h" | |
48 | #include "cxgb3_ioctl.h" | |
49 | #include "regs.h" | |
50 | #include "cxgb3_offload.h" | |
51 | #include "version.h" | |
52 | ||
53 | #include "cxgb3_ctl_defs.h" | |
54 | #include "t3_cpl.h" | |
55 | #include "firmware_exports.h" | |
56 | ||
57 | enum { | |
58 | MAX_TXQ_ENTRIES = 16384, | |
59 | MAX_CTRL_TXQ_ENTRIES = 1024, | |
60 | MAX_RSPQ_ENTRIES = 16384, | |
61 | MAX_RX_BUFFERS = 16384, | |
62 | MAX_RX_JUMBO_BUFFERS = 16384, | |
63 | MIN_TXQ_ENTRIES = 4, | |
64 | MIN_CTRL_TXQ_ENTRIES = 4, | |
65 | MIN_RSPQ_ENTRIES = 32, | |
66 | MIN_FL_ENTRIES = 32 | |
67 | }; | |
68 | ||
69 | #define PORT_MASK ((1 << MAX_NPORTS) - 1) | |
70 | ||
71 | #define DFLT_MSG_ENABLE (NETIF_MSG_DRV | NETIF_MSG_PROBE | NETIF_MSG_LINK | \ | |
72 | NETIF_MSG_TIMER | NETIF_MSG_IFDOWN | NETIF_MSG_IFUP |\ | |
73 | NETIF_MSG_RX_ERR | NETIF_MSG_TX_ERR) | |
74 | ||
75 | #define EEPROM_MAGIC 0x38E2F10C | |
76 | ||
77 | #define to_net_dev(class) container_of(class, struct net_device, class_dev) | |
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"); | |
1d68e93d | 98 | MODULE_LICENSE("Dual BSD/GPL"); |
4d22de3e DLR |
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 | ||
190 | /* Skip changes from disabled ports. */ | |
191 | if (!netif_running(dev)) | |
192 | return; | |
193 | ||
194 | if (link_stat != netif_carrier_ok(dev)) { | |
195 | if (link_stat) | |
196 | netif_carrier_on(dev); | |
197 | else | |
198 | netif_carrier_off(dev); | |
199 | link_report(dev); | |
200 | } | |
201 | } | |
202 | ||
203 | static void cxgb_set_rxmode(struct net_device *dev) | |
204 | { | |
205 | struct t3_rx_mode rm; | |
206 | struct port_info *pi = netdev_priv(dev); | |
207 | ||
208 | init_rx_mode(&rm, dev, dev->mc_list); | |
209 | t3_mac_set_rx_mode(&pi->mac, &rm); | |
210 | } | |
211 | ||
212 | /** | |
213 | * link_start - enable a port | |
214 | * @dev: the device to enable | |
215 | * | |
216 | * Performs the MAC and PHY actions needed to enable a port. | |
217 | */ | |
218 | static void link_start(struct net_device *dev) | |
219 | { | |
220 | struct t3_rx_mode rm; | |
221 | struct port_info *pi = netdev_priv(dev); | |
222 | struct cmac *mac = &pi->mac; | |
223 | ||
224 | init_rx_mode(&rm, dev, dev->mc_list); | |
225 | t3_mac_reset(mac); | |
226 | t3_mac_set_mtu(mac, dev->mtu); | |
227 | t3_mac_set_address(mac, 0, dev->dev_addr); | |
228 | t3_mac_set_rx_mode(mac, &rm); | |
229 | t3_link_start(&pi->phy, mac, &pi->link_config); | |
230 | t3_mac_enable(mac, MAC_DIRECTION_RX | MAC_DIRECTION_TX); | |
231 | } | |
232 | ||
233 | static inline void cxgb_disable_msi(struct adapter *adapter) | |
234 | { | |
235 | if (adapter->flags & USING_MSIX) { | |
236 | pci_disable_msix(adapter->pdev); | |
237 | adapter->flags &= ~USING_MSIX; | |
238 | } else if (adapter->flags & USING_MSI) { | |
239 | pci_disable_msi(adapter->pdev); | |
240 | adapter->flags &= ~USING_MSI; | |
241 | } | |
242 | } | |
243 | ||
244 | /* | |
245 | * Interrupt handler for asynchronous events used with MSI-X. | |
246 | */ | |
247 | static irqreturn_t t3_async_intr_handler(int irq, void *cookie) | |
248 | { | |
249 | t3_slow_intr_handler(cookie); | |
250 | return IRQ_HANDLED; | |
251 | } | |
252 | ||
253 | /* | |
254 | * Name the MSI-X interrupts. | |
255 | */ | |
256 | static void name_msix_vecs(struct adapter *adap) | |
257 | { | |
258 | int i, j, msi_idx = 1, n = sizeof(adap->msix_info[0].desc) - 1; | |
259 | ||
260 | snprintf(adap->msix_info[0].desc, n, "%s", adap->name); | |
261 | adap->msix_info[0].desc[n] = 0; | |
262 | ||
263 | for_each_port(adap, j) { | |
264 | struct net_device *d = adap->port[j]; | |
265 | const struct port_info *pi = netdev_priv(d); | |
266 | ||
267 | for (i = 0; i < pi->nqsets; i++, msi_idx++) { | |
268 | snprintf(adap->msix_info[msi_idx].desc, n, | |
269 | "%s (queue %d)", d->name, i); | |
270 | adap->msix_info[msi_idx].desc[n] = 0; | |
271 | } | |
272 | } | |
273 | } | |
274 | ||
275 | static int request_msix_data_irqs(struct adapter *adap) | |
276 | { | |
277 | int i, j, err, qidx = 0; | |
278 | ||
279 | for_each_port(adap, i) { | |
280 | int nqsets = adap2pinfo(adap, i)->nqsets; | |
281 | ||
282 | for (j = 0; j < nqsets; ++j) { | |
283 | err = request_irq(adap->msix_info[qidx + 1].vec, | |
284 | t3_intr_handler(adap, | |
285 | adap->sge.qs[qidx]. | |
286 | rspq.polling), 0, | |
287 | adap->msix_info[qidx + 1].desc, | |
288 | &adap->sge.qs[qidx]); | |
289 | if (err) { | |
290 | while (--qidx >= 0) | |
291 | free_irq(adap->msix_info[qidx + 1].vec, | |
292 | &adap->sge.qs[qidx]); | |
293 | return err; | |
294 | } | |
295 | qidx++; | |
296 | } | |
297 | } | |
298 | return 0; | |
299 | } | |
300 | ||
301 | /** | |
302 | * setup_rss - configure RSS | |
303 | * @adap: the adapter | |
304 | * | |
305 | * Sets up RSS to distribute packets to multiple receive queues. We | |
306 | * configure the RSS CPU lookup table to distribute to the number of HW | |
307 | * receive queues, and the response queue lookup table to narrow that | |
308 | * down to the response queues actually configured for each port. | |
309 | * We always configure the RSS mapping for two ports since the mapping | |
310 | * table has plenty of entries. | |
311 | */ | |
312 | static void setup_rss(struct adapter *adap) | |
313 | { | |
314 | int i; | |
315 | unsigned int nq0 = adap2pinfo(adap, 0)->nqsets; | |
316 | unsigned int nq1 = adap->port[1] ? adap2pinfo(adap, 1)->nqsets : 1; | |
317 | u8 cpus[SGE_QSETS + 1]; | |
318 | u16 rspq_map[RSS_TABLE_SIZE]; | |
319 | ||
320 | for (i = 0; i < SGE_QSETS; ++i) | |
321 | cpus[i] = i; | |
322 | cpus[SGE_QSETS] = 0xff; /* terminator */ | |
323 | ||
324 | for (i = 0; i < RSS_TABLE_SIZE / 2; ++i) { | |
325 | rspq_map[i] = i % nq0; | |
326 | rspq_map[i + RSS_TABLE_SIZE / 2] = (i % nq1) + nq0; | |
327 | } | |
328 | ||
329 | t3_config_rss(adap, F_RQFEEDBACKENABLE | F_TNLLKPEN | F_TNLMAPEN | | |
330 | F_TNLPRTEN | F_TNL2TUPEN | F_TNL4TUPEN | | |
331 | V_RRCPLCPUSIZE(6), cpus, rspq_map); | |
332 | } | |
333 | ||
334 | /* | |
335 | * If we have multiple receive queues per port serviced by NAPI we need one | |
336 | * netdevice per queue as NAPI operates on netdevices. We already have one | |
337 | * netdevice, namely the one associated with the interface, so we use dummy | |
338 | * ones for any additional queues. Note that these netdevices exist purely | |
339 | * so that NAPI has something to work with, they do not represent network | |
340 | * ports and are not registered. | |
341 | */ | |
342 | static int init_dummy_netdevs(struct adapter *adap) | |
343 | { | |
344 | int i, j, dummy_idx = 0; | |
345 | struct net_device *nd; | |
346 | ||
347 | for_each_port(adap, i) { | |
348 | struct net_device *dev = adap->port[i]; | |
349 | const struct port_info *pi = netdev_priv(dev); | |
350 | ||
351 | for (j = 0; j < pi->nqsets - 1; j++) { | |
352 | if (!adap->dummy_netdev[dummy_idx]) { | |
353 | nd = alloc_netdev(0, "", ether_setup); | |
354 | if (!nd) | |
355 | goto free_all; | |
356 | ||
357 | nd->priv = adap; | |
358 | nd->weight = 64; | |
359 | set_bit(__LINK_STATE_START, &nd->state); | |
360 | adap->dummy_netdev[dummy_idx] = nd; | |
361 | } | |
362 | strcpy(adap->dummy_netdev[dummy_idx]->name, dev->name); | |
363 | dummy_idx++; | |
364 | } | |
365 | } | |
366 | return 0; | |
367 | ||
368 | free_all: | |
369 | while (--dummy_idx >= 0) { | |
370 | free_netdev(adap->dummy_netdev[dummy_idx]); | |
371 | adap->dummy_netdev[dummy_idx] = NULL; | |
372 | } | |
373 | return -ENOMEM; | |
374 | } | |
375 | ||
376 | /* | |
377 | * Wait until all NAPI handlers are descheduled. This includes the handlers of | |
378 | * both netdevices representing interfaces and the dummy ones for the extra | |
379 | * queues. | |
380 | */ | |
381 | static void quiesce_rx(struct adapter *adap) | |
382 | { | |
383 | int i; | |
384 | struct net_device *dev; | |
385 | ||
386 | for_each_port(adap, i) { | |
387 | dev = adap->port[i]; | |
388 | while (test_bit(__LINK_STATE_RX_SCHED, &dev->state)) | |
389 | msleep(1); | |
390 | } | |
391 | ||
392 | for (i = 0; i < ARRAY_SIZE(adap->dummy_netdev); i++) { | |
393 | dev = adap->dummy_netdev[i]; | |
394 | if (dev) | |
395 | while (test_bit(__LINK_STATE_RX_SCHED, &dev->state)) | |
396 | msleep(1); | |
397 | } | |
398 | } | |
399 | ||
400 | /** | |
401 | * setup_sge_qsets - configure SGE Tx/Rx/response queues | |
402 | * @adap: the adapter | |
403 | * | |
404 | * Determines how many sets of SGE queues to use and initializes them. | |
405 | * We support multiple queue sets per port if we have MSI-X, otherwise | |
406 | * just one queue set per port. | |
407 | */ | |
408 | static int setup_sge_qsets(struct adapter *adap) | |
409 | { | |
410 | int i, j, err, irq_idx = 0, qset_idx = 0, dummy_dev_idx = 0; | |
411 | unsigned int ntxq = is_offload(adap) ? SGE_TXQ_PER_SET : 1; | |
412 | ||
413 | if (adap->params.rev > 0 && !(adap->flags & USING_MSI)) | |
414 | irq_idx = -1; | |
415 | ||
416 | for_each_port(adap, i) { | |
417 | struct net_device *dev = adap->port[i]; | |
418 | const struct port_info *pi = netdev_priv(dev); | |
419 | ||
420 | for (j = 0; j < pi->nqsets; ++j, ++qset_idx) { | |
421 | err = t3_sge_alloc_qset(adap, qset_idx, 1, | |
422 | (adap->flags & USING_MSIX) ? qset_idx + 1 : | |
423 | irq_idx, | |
424 | &adap->params.sge.qset[qset_idx], ntxq, | |
425 | j == 0 ? dev : | |
426 | adap-> dummy_netdev[dummy_dev_idx++]); | |
427 | if (err) { | |
428 | t3_free_sge_resources(adap); | |
429 | return err; | |
430 | } | |
431 | } | |
432 | } | |
433 | ||
434 | return 0; | |
435 | } | |
436 | ||
437 | static ssize_t attr_show(struct class_device *cd, char *buf, | |
438 | ssize_t(*format) (struct adapter *, char *)) | |
439 | { | |
440 | ssize_t len; | |
441 | struct adapter *adap = to_net_dev(cd)->priv; | |
442 | ||
443 | /* Synchronize with ioctls that may shut down the device */ | |
444 | rtnl_lock(); | |
445 | len = (*format) (adap, buf); | |
446 | rtnl_unlock(); | |
447 | return len; | |
448 | } | |
449 | ||
450 | static ssize_t attr_store(struct class_device *cd, const char *buf, size_t len, | |
451 | ssize_t(*set) (struct adapter *, unsigned int), | |
452 | unsigned int min_val, unsigned int max_val) | |
453 | { | |
454 | char *endp; | |
455 | ssize_t ret; | |
456 | unsigned int val; | |
457 | struct adapter *adap = to_net_dev(cd)->priv; | |
458 | ||
459 | if (!capable(CAP_NET_ADMIN)) | |
460 | return -EPERM; | |
461 | ||
462 | val = simple_strtoul(buf, &endp, 0); | |
463 | if (endp == buf || val < min_val || val > max_val) | |
464 | return -EINVAL; | |
465 | ||
466 | rtnl_lock(); | |
467 | ret = (*set) (adap, val); | |
468 | if (!ret) | |
469 | ret = len; | |
470 | rtnl_unlock(); | |
471 | return ret; | |
472 | } | |
473 | ||
474 | #define CXGB3_SHOW(name, val_expr) \ | |
475 | static ssize_t format_##name(struct adapter *adap, char *buf) \ | |
476 | { \ | |
477 | return sprintf(buf, "%u\n", val_expr); \ | |
478 | } \ | |
479 | static ssize_t show_##name(struct class_device *cd, char *buf) \ | |
480 | { \ | |
481 | return attr_show(cd, buf, format_##name); \ | |
482 | } | |
483 | ||
484 | static ssize_t set_nfilters(struct adapter *adap, unsigned int val) | |
485 | { | |
486 | if (adap->flags & FULL_INIT_DONE) | |
487 | return -EBUSY; | |
488 | if (val && adap->params.rev == 0) | |
489 | return -EINVAL; | |
490 | if (val > t3_mc5_size(&adap->mc5) - adap->params.mc5.nservers) | |
491 | return -EINVAL; | |
492 | adap->params.mc5.nfilters = val; | |
493 | return 0; | |
494 | } | |
495 | ||
496 | static ssize_t store_nfilters(struct class_device *cd, const char *buf, | |
497 | size_t len) | |
498 | { | |
499 | return attr_store(cd, buf, len, set_nfilters, 0, ~0); | |
500 | } | |
501 | ||
502 | static ssize_t set_nservers(struct adapter *adap, unsigned int val) | |
503 | { | |
504 | if (adap->flags & FULL_INIT_DONE) | |
505 | return -EBUSY; | |
506 | if (val > t3_mc5_size(&adap->mc5) - adap->params.mc5.nfilters) | |
507 | return -EINVAL; | |
508 | adap->params.mc5.nservers = val; | |
509 | return 0; | |
510 | } | |
511 | ||
512 | static ssize_t store_nservers(struct class_device *cd, const char *buf, | |
513 | size_t len) | |
514 | { | |
515 | return attr_store(cd, buf, len, set_nservers, 0, ~0); | |
516 | } | |
517 | ||
518 | #define CXGB3_ATTR_R(name, val_expr) \ | |
519 | CXGB3_SHOW(name, val_expr) \ | |
520 | static CLASS_DEVICE_ATTR(name, S_IRUGO, show_##name, NULL) | |
521 | ||
522 | #define CXGB3_ATTR_RW(name, val_expr, store_method) \ | |
523 | CXGB3_SHOW(name, val_expr) \ | |
524 | static CLASS_DEVICE_ATTR(name, S_IRUGO | S_IWUSR, show_##name, store_method) | |
525 | ||
526 | CXGB3_ATTR_R(cam_size, t3_mc5_size(&adap->mc5)); | |
527 | CXGB3_ATTR_RW(nfilters, adap->params.mc5.nfilters, store_nfilters); | |
528 | CXGB3_ATTR_RW(nservers, adap->params.mc5.nservers, store_nservers); | |
529 | ||
530 | static struct attribute *cxgb3_attrs[] = { | |
531 | &class_device_attr_cam_size.attr, | |
532 | &class_device_attr_nfilters.attr, | |
533 | &class_device_attr_nservers.attr, | |
534 | NULL | |
535 | }; | |
536 | ||
537 | static struct attribute_group cxgb3_attr_group = {.attrs = cxgb3_attrs }; | |
538 | ||
539 | static ssize_t tm_attr_show(struct class_device *cd, char *buf, int sched) | |
540 | { | |
541 | ssize_t len; | |
542 | unsigned int v, addr, bpt, cpt; | |
543 | struct adapter *adap = to_net_dev(cd)->priv; | |
544 | ||
545 | addr = A_TP_TX_MOD_Q1_Q0_RATE_LIMIT - sched / 2; | |
546 | rtnl_lock(); | |
547 | t3_write_reg(adap, A_TP_TM_PIO_ADDR, addr); | |
548 | v = t3_read_reg(adap, A_TP_TM_PIO_DATA); | |
549 | if (sched & 1) | |
550 | v >>= 16; | |
551 | bpt = (v >> 8) & 0xff; | |
552 | cpt = v & 0xff; | |
553 | if (!cpt) | |
554 | len = sprintf(buf, "disabled\n"); | |
555 | else { | |
556 | v = (adap->params.vpd.cclk * 1000) / cpt; | |
557 | len = sprintf(buf, "%u Kbps\n", (v * bpt) / 125); | |
558 | } | |
559 | rtnl_unlock(); | |
560 | return len; | |
561 | } | |
562 | ||
563 | static ssize_t tm_attr_store(struct class_device *cd, const char *buf, | |
564 | size_t len, int sched) | |
565 | { | |
566 | char *endp; | |
567 | ssize_t ret; | |
568 | unsigned int val; | |
569 | struct adapter *adap = to_net_dev(cd)->priv; | |
570 | ||
571 | if (!capable(CAP_NET_ADMIN)) | |
572 | return -EPERM; | |
573 | ||
574 | val = simple_strtoul(buf, &endp, 0); | |
575 | if (endp == buf || val > 10000000) | |
576 | return -EINVAL; | |
577 | ||
578 | rtnl_lock(); | |
579 | ret = t3_config_sched(adap, val, sched); | |
580 | if (!ret) | |
581 | ret = len; | |
582 | rtnl_unlock(); | |
583 | return ret; | |
584 | } | |
585 | ||
586 | #define TM_ATTR(name, sched) \ | |
587 | static ssize_t show_##name(struct class_device *cd, char *buf) \ | |
588 | { \ | |
589 | return tm_attr_show(cd, buf, sched); \ | |
590 | } \ | |
591 | static ssize_t store_##name(struct class_device *cd, const char *buf, size_t len) \ | |
592 | { \ | |
593 | return tm_attr_store(cd, buf, len, sched); \ | |
594 | } \ | |
595 | static CLASS_DEVICE_ATTR(name, S_IRUGO | S_IWUSR, show_##name, store_##name) | |
596 | ||
597 | TM_ATTR(sched0, 0); | |
598 | TM_ATTR(sched1, 1); | |
599 | TM_ATTR(sched2, 2); | |
600 | TM_ATTR(sched3, 3); | |
601 | TM_ATTR(sched4, 4); | |
602 | TM_ATTR(sched5, 5); | |
603 | TM_ATTR(sched6, 6); | |
604 | TM_ATTR(sched7, 7); | |
605 | ||
606 | static struct attribute *offload_attrs[] = { | |
607 | &class_device_attr_sched0.attr, | |
608 | &class_device_attr_sched1.attr, | |
609 | &class_device_attr_sched2.attr, | |
610 | &class_device_attr_sched3.attr, | |
611 | &class_device_attr_sched4.attr, | |
612 | &class_device_attr_sched5.attr, | |
613 | &class_device_attr_sched6.attr, | |
614 | &class_device_attr_sched7.attr, | |
615 | NULL | |
616 | }; | |
617 | ||
618 | static struct attribute_group offload_attr_group = {.attrs = offload_attrs }; | |
619 | ||
620 | /* | |
621 | * Sends an sk_buff to an offload queue driver | |
622 | * after dealing with any active network taps. | |
623 | */ | |
624 | static inline int offload_tx(struct t3cdev *tdev, struct sk_buff *skb) | |
625 | { | |
626 | int ret; | |
627 | ||
628 | local_bh_disable(); | |
629 | ret = t3_offload_tx(tdev, skb); | |
630 | local_bh_enable(); | |
631 | return ret; | |
632 | } | |
633 | ||
634 | static int write_smt_entry(struct adapter *adapter, int idx) | |
635 | { | |
636 | struct cpl_smt_write_req *req; | |
637 | struct sk_buff *skb = alloc_skb(sizeof(*req), GFP_KERNEL); | |
638 | ||
639 | if (!skb) | |
640 | return -ENOMEM; | |
641 | ||
642 | req = (struct cpl_smt_write_req *)__skb_put(skb, sizeof(*req)); | |
643 | req->wr.wr_hi = htonl(V_WR_OP(FW_WROPCODE_FORWARD)); | |
644 | OPCODE_TID(req) = htonl(MK_OPCODE_TID(CPL_SMT_WRITE_REQ, idx)); | |
645 | req->mtu_idx = NMTUS - 1; /* should be 0 but there's a T3 bug */ | |
646 | req->iff = idx; | |
647 | memset(req->src_mac1, 0, sizeof(req->src_mac1)); | |
648 | memcpy(req->src_mac0, adapter->port[idx]->dev_addr, ETH_ALEN); | |
649 | skb->priority = 1; | |
650 | offload_tx(&adapter->tdev, skb); | |
651 | return 0; | |
652 | } | |
653 | ||
654 | static int init_smt(struct adapter *adapter) | |
655 | { | |
656 | int i; | |
657 | ||
658 | for_each_port(adapter, i) | |
659 | write_smt_entry(adapter, i); | |
660 | return 0; | |
661 | } | |
662 | ||
663 | static void init_port_mtus(struct adapter *adapter) | |
664 | { | |
665 | unsigned int mtus = adapter->port[0]->mtu; | |
666 | ||
667 | if (adapter->port[1]) | |
668 | mtus |= adapter->port[1]->mtu << 16; | |
669 | t3_write_reg(adapter, A_TP_MTU_PORT_TABLE, mtus); | |
670 | } | |
671 | ||
14ab9892 DLR |
672 | static void send_pktsched_cmd(struct adapter *adap, int sched, int qidx, int lo, |
673 | int hi, int port) | |
674 | { | |
675 | struct sk_buff *skb; | |
676 | struct mngt_pktsched_wr *req; | |
677 | ||
678 | skb = alloc_skb(sizeof(*req), GFP_KERNEL | __GFP_NOFAIL); | |
679 | req = (struct mngt_pktsched_wr *)skb_put(skb, sizeof(*req)); | |
680 | req->wr_hi = htonl(V_WR_OP(FW_WROPCODE_MNGT)); | |
681 | req->mngt_opcode = FW_MNGTOPCODE_PKTSCHED_SET; | |
682 | req->sched = sched; | |
683 | req->idx = qidx; | |
684 | req->min = lo; | |
685 | req->max = hi; | |
686 | req->binding = port; | |
687 | t3_mgmt_tx(adap, skb); | |
688 | } | |
689 | ||
690 | static void bind_qsets(struct adapter *adap) | |
691 | { | |
692 | int i, j; | |
693 | ||
694 | for_each_port(adap, i) { | |
695 | const struct port_info *pi = adap2pinfo(adap, i); | |
696 | ||
697 | for (j = 0; j < pi->nqsets; ++j) | |
698 | send_pktsched_cmd(adap, 1, pi->first_qset + j, -1, | |
699 | -1, i); | |
700 | } | |
701 | } | |
702 | ||
4d22de3e DLR |
703 | /** |
704 | * cxgb_up - enable the adapter | |
705 | * @adapter: adapter being enabled | |
706 | * | |
707 | * Called when the first port is enabled, this function performs the | |
708 | * actions necessary to make an adapter operational, such as completing | |
709 | * the initialization of HW modules, and enabling interrupts. | |
710 | * | |
711 | * Must be called with the rtnl lock held. | |
712 | */ | |
713 | static int cxgb_up(struct adapter *adap) | |
714 | { | |
715 | int err = 0; | |
716 | ||
717 | if (!(adap->flags & FULL_INIT_DONE)) { | |
718 | err = t3_check_fw_version(adap); | |
4aac3899 | 719 | if (err) |
4d22de3e | 720 | goto out; |
4d22de3e DLR |
721 | |
722 | err = init_dummy_netdevs(adap); | |
723 | if (err) | |
724 | goto out; | |
725 | ||
726 | err = t3_init_hw(adap, 0); | |
727 | if (err) | |
728 | goto out; | |
729 | ||
730 | err = setup_sge_qsets(adap); | |
731 | if (err) | |
732 | goto out; | |
733 | ||
734 | setup_rss(adap); | |
735 | adap->flags |= FULL_INIT_DONE; | |
736 | } | |
737 | ||
738 | t3_intr_clear(adap); | |
739 | ||
740 | if (adap->flags & USING_MSIX) { | |
741 | name_msix_vecs(adap); | |
742 | err = request_irq(adap->msix_info[0].vec, | |
743 | t3_async_intr_handler, 0, | |
744 | adap->msix_info[0].desc, adap); | |
745 | if (err) | |
746 | goto irq_err; | |
747 | ||
748 | if (request_msix_data_irqs(adap)) { | |
749 | free_irq(adap->msix_info[0].vec, adap); | |
750 | goto irq_err; | |
751 | } | |
752 | } else if ((err = request_irq(adap->pdev->irq, | |
753 | t3_intr_handler(adap, | |
754 | adap->sge.qs[0].rspq. | |
755 | polling), | |
756 | (adap->flags & USING_MSI) ? 0 : SA_SHIRQ, | |
757 | adap->name, adap))) | |
758 | goto irq_err; | |
759 | ||
760 | t3_sge_start(adap); | |
761 | t3_intr_enable(adap); | |
14ab9892 DLR |
762 | |
763 | if ((adap->flags & (USING_MSIX | QUEUES_BOUND)) == USING_MSIX) | |
764 | bind_qsets(adap); | |
765 | adap->flags |= QUEUES_BOUND; | |
766 | ||
4d22de3e DLR |
767 | out: |
768 | return err; | |
769 | irq_err: | |
770 | CH_ERR(adap, "request_irq failed, err %d\n", err); | |
771 | goto out; | |
772 | } | |
773 | ||
774 | /* | |
775 | * Release resources when all the ports and offloading have been stopped. | |
776 | */ | |
777 | static void cxgb_down(struct adapter *adapter) | |
778 | { | |
779 | t3_sge_stop(adapter); | |
780 | spin_lock_irq(&adapter->work_lock); /* sync with PHY intr task */ | |
781 | t3_intr_disable(adapter); | |
782 | spin_unlock_irq(&adapter->work_lock); | |
783 | ||
784 | if (adapter->flags & USING_MSIX) { | |
785 | int i, n = 0; | |
786 | ||
787 | free_irq(adapter->msix_info[0].vec, adapter); | |
788 | for_each_port(adapter, i) | |
789 | n += adap2pinfo(adapter, i)->nqsets; | |
790 | ||
791 | for (i = 0; i < n; ++i) | |
792 | free_irq(adapter->msix_info[i + 1].vec, | |
793 | &adapter->sge.qs[i]); | |
794 | } else | |
795 | free_irq(adapter->pdev->irq, adapter); | |
796 | ||
797 | flush_workqueue(cxgb3_wq); /* wait for external IRQ handler */ | |
798 | quiesce_rx(adapter); | |
799 | } | |
800 | ||
801 | static void schedule_chk_task(struct adapter *adap) | |
802 | { | |
803 | unsigned int timeo; | |
804 | ||
805 | timeo = adap->params.linkpoll_period ? | |
806 | (HZ * adap->params.linkpoll_period) / 10 : | |
807 | adap->params.stats_update_period * HZ; | |
808 | if (timeo) | |
809 | queue_delayed_work(cxgb3_wq, &adap->adap_check_task, timeo); | |
810 | } | |
811 | ||
812 | static int offload_open(struct net_device *dev) | |
813 | { | |
814 | struct adapter *adapter = dev->priv; | |
815 | struct t3cdev *tdev = T3CDEV(dev); | |
816 | int adap_up = adapter->open_device_map & PORT_MASK; | |
817 | int err = 0; | |
818 | ||
819 | if (test_and_set_bit(OFFLOAD_DEVMAP_BIT, &adapter->open_device_map)) | |
820 | return 0; | |
821 | ||
822 | if (!adap_up && (err = cxgb_up(adapter)) < 0) | |
823 | return err; | |
824 | ||
825 | t3_tp_set_offload_mode(adapter, 1); | |
826 | tdev->lldev = adapter->port[0]; | |
827 | err = cxgb3_offload_activate(adapter); | |
828 | if (err) | |
829 | goto out; | |
830 | ||
831 | init_port_mtus(adapter); | |
832 | t3_load_mtus(adapter, adapter->params.mtus, adapter->params.a_wnd, | |
833 | adapter->params.b_wnd, | |
834 | adapter->params.rev == 0 ? | |
835 | adapter->port[0]->mtu : 0xffff); | |
836 | init_smt(adapter); | |
837 | ||
838 | /* Never mind if the next step fails */ | |
839 | sysfs_create_group(&tdev->lldev->class_dev.kobj, &offload_attr_group); | |
840 | ||
841 | /* Call back all registered clients */ | |
842 | cxgb3_add_clients(tdev); | |
843 | ||
844 | out: | |
845 | /* restore them in case the offload module has changed them */ | |
846 | if (err) { | |
847 | t3_tp_set_offload_mode(adapter, 0); | |
848 | clear_bit(OFFLOAD_DEVMAP_BIT, &adapter->open_device_map); | |
849 | cxgb3_set_dummy_ops(tdev); | |
850 | } | |
851 | return err; | |
852 | } | |
853 | ||
854 | static int offload_close(struct t3cdev *tdev) | |
855 | { | |
856 | struct adapter *adapter = tdev2adap(tdev); | |
857 | ||
858 | if (!test_bit(OFFLOAD_DEVMAP_BIT, &adapter->open_device_map)) | |
859 | return 0; | |
860 | ||
861 | /* Call back all registered clients */ | |
862 | cxgb3_remove_clients(tdev); | |
863 | ||
864 | sysfs_remove_group(&tdev->lldev->class_dev.kobj, &offload_attr_group); | |
865 | ||
866 | tdev->lldev = NULL; | |
867 | cxgb3_set_dummy_ops(tdev); | |
868 | t3_tp_set_offload_mode(adapter, 0); | |
869 | clear_bit(OFFLOAD_DEVMAP_BIT, &adapter->open_device_map); | |
870 | ||
871 | if (!adapter->open_device_map) | |
872 | cxgb_down(adapter); | |
873 | ||
874 | cxgb3_offload_deactivate(adapter); | |
875 | return 0; | |
876 | } | |
877 | ||
878 | static int cxgb_open(struct net_device *dev) | |
879 | { | |
880 | int err; | |
881 | struct adapter *adapter = dev->priv; | |
882 | struct port_info *pi = netdev_priv(dev); | |
883 | int other_ports = adapter->open_device_map & PORT_MASK; | |
884 | ||
885 | if (!adapter->open_device_map && (err = cxgb_up(adapter)) < 0) | |
886 | return err; | |
887 | ||
888 | set_bit(pi->port_id, &adapter->open_device_map); | |
889 | if (!ofld_disable) { | |
890 | err = offload_open(dev); | |
891 | if (err) | |
892 | printk(KERN_WARNING | |
893 | "Could not initialize offload capabilities\n"); | |
894 | } | |
895 | ||
896 | link_start(dev); | |
897 | t3_port_intr_enable(adapter, pi->port_id); | |
898 | netif_start_queue(dev); | |
899 | if (!other_ports) | |
900 | schedule_chk_task(adapter); | |
901 | ||
902 | return 0; | |
903 | } | |
904 | ||
905 | static int cxgb_close(struct net_device *dev) | |
906 | { | |
907 | struct adapter *adapter = dev->priv; | |
908 | struct port_info *p = netdev_priv(dev); | |
909 | ||
910 | t3_port_intr_disable(adapter, p->port_id); | |
911 | netif_stop_queue(dev); | |
912 | p->phy.ops->power_down(&p->phy, 1); | |
913 | netif_carrier_off(dev); | |
914 | t3_mac_disable(&p->mac, MAC_DIRECTION_TX | MAC_DIRECTION_RX); | |
915 | ||
916 | spin_lock(&adapter->work_lock); /* sync with update task */ | |
917 | clear_bit(p->port_id, &adapter->open_device_map); | |
918 | spin_unlock(&adapter->work_lock); | |
919 | ||
920 | if (!(adapter->open_device_map & PORT_MASK)) | |
921 | cancel_rearming_delayed_workqueue(cxgb3_wq, | |
922 | &adapter->adap_check_task); | |
923 | ||
924 | if (!adapter->open_device_map) | |
925 | cxgb_down(adapter); | |
926 | ||
927 | return 0; | |
928 | } | |
929 | ||
930 | static struct net_device_stats *cxgb_get_stats(struct net_device *dev) | |
931 | { | |
932 | struct adapter *adapter = dev->priv; | |
933 | struct port_info *p = netdev_priv(dev); | |
934 | struct net_device_stats *ns = &p->netstats; | |
935 | const struct mac_stats *pstats; | |
936 | ||
937 | spin_lock(&adapter->stats_lock); | |
938 | pstats = t3_mac_update_stats(&p->mac); | |
939 | spin_unlock(&adapter->stats_lock); | |
940 | ||
941 | ns->tx_bytes = pstats->tx_octets; | |
942 | ns->tx_packets = pstats->tx_frames; | |
943 | ns->rx_bytes = pstats->rx_octets; | |
944 | ns->rx_packets = pstats->rx_frames; | |
945 | ns->multicast = pstats->rx_mcast_frames; | |
946 | ||
947 | ns->tx_errors = pstats->tx_underrun; | |
948 | ns->rx_errors = pstats->rx_symbol_errs + pstats->rx_fcs_errs + | |
949 | pstats->rx_too_long + pstats->rx_jabber + pstats->rx_short + | |
950 | pstats->rx_fifo_ovfl; | |
951 | ||
952 | /* detailed rx_errors */ | |
953 | ns->rx_length_errors = pstats->rx_jabber + pstats->rx_too_long; | |
954 | ns->rx_over_errors = 0; | |
955 | ns->rx_crc_errors = pstats->rx_fcs_errs; | |
956 | ns->rx_frame_errors = pstats->rx_symbol_errs; | |
957 | ns->rx_fifo_errors = pstats->rx_fifo_ovfl; | |
958 | ns->rx_missed_errors = pstats->rx_cong_drops; | |
959 | ||
960 | /* detailed tx_errors */ | |
961 | ns->tx_aborted_errors = 0; | |
962 | ns->tx_carrier_errors = 0; | |
963 | ns->tx_fifo_errors = pstats->tx_underrun; | |
964 | ns->tx_heartbeat_errors = 0; | |
965 | ns->tx_window_errors = 0; | |
966 | return ns; | |
967 | } | |
968 | ||
969 | static u32 get_msglevel(struct net_device *dev) | |
970 | { | |
971 | struct adapter *adapter = dev->priv; | |
972 | ||
973 | return adapter->msg_enable; | |
974 | } | |
975 | ||
976 | static void set_msglevel(struct net_device *dev, u32 val) | |
977 | { | |
978 | struct adapter *adapter = dev->priv; | |
979 | ||
980 | adapter->msg_enable = val; | |
981 | } | |
982 | ||
983 | static char stats_strings[][ETH_GSTRING_LEN] = { | |
984 | "TxOctetsOK ", | |
985 | "TxFramesOK ", | |
986 | "TxMulticastFramesOK", | |
987 | "TxBroadcastFramesOK", | |
988 | "TxPauseFrames ", | |
989 | "TxUnderrun ", | |
990 | "TxExtUnderrun ", | |
991 | ||
992 | "TxFrames64 ", | |
993 | "TxFrames65To127 ", | |
994 | "TxFrames128To255 ", | |
995 | "TxFrames256To511 ", | |
996 | "TxFrames512To1023 ", | |
997 | "TxFrames1024To1518 ", | |
998 | "TxFrames1519ToMax ", | |
999 | ||
1000 | "RxOctetsOK ", | |
1001 | "RxFramesOK ", | |
1002 | "RxMulticastFramesOK", | |
1003 | "RxBroadcastFramesOK", | |
1004 | "RxPauseFrames ", | |
1005 | "RxFCSErrors ", | |
1006 | "RxSymbolErrors ", | |
1007 | "RxShortErrors ", | |
1008 | "RxJabberErrors ", | |
1009 | "RxLengthErrors ", | |
1010 | "RxFIFOoverflow ", | |
1011 | ||
1012 | "RxFrames64 ", | |
1013 | "RxFrames65To127 ", | |
1014 | "RxFrames128To255 ", | |
1015 | "RxFrames256To511 ", | |
1016 | "RxFrames512To1023 ", | |
1017 | "RxFrames1024To1518 ", | |
1018 | "RxFrames1519ToMax ", | |
1019 | ||
1020 | "PhyFIFOErrors ", | |
1021 | "TSO ", | |
1022 | "VLANextractions ", | |
1023 | "VLANinsertions ", | |
1024 | "TxCsumOffload ", | |
1025 | "RxCsumGood ", | |
1026 | "RxDrops " | |
1027 | }; | |
1028 | ||
1029 | static int get_stats_count(struct net_device *dev) | |
1030 | { | |
1031 | return ARRAY_SIZE(stats_strings); | |
1032 | } | |
1033 | ||
1034 | #define T3_REGMAP_SIZE (3 * 1024) | |
1035 | ||
1036 | static int get_regs_len(struct net_device *dev) | |
1037 | { | |
1038 | return T3_REGMAP_SIZE; | |
1039 | } | |
1040 | ||
1041 | static int get_eeprom_len(struct net_device *dev) | |
1042 | { | |
1043 | return EEPROMSIZE; | |
1044 | } | |
1045 | ||
1046 | static void get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info) | |
1047 | { | |
1048 | u32 fw_vers = 0; | |
1049 | struct adapter *adapter = dev->priv; | |
1050 | ||
1051 | t3_get_fw_version(adapter, &fw_vers); | |
1052 | ||
1053 | strcpy(info->driver, DRV_NAME); | |
1054 | strcpy(info->version, DRV_VERSION); | |
1055 | strcpy(info->bus_info, pci_name(adapter->pdev)); | |
1056 | if (!fw_vers) | |
1057 | strcpy(info->fw_version, "N/A"); | |
4aac3899 | 1058 | else { |
4d22de3e | 1059 | snprintf(info->fw_version, sizeof(info->fw_version), |
4aac3899 DLR |
1060 | "%s %u.%u.%u", |
1061 | G_FW_VERSION_TYPE(fw_vers) ? "T" : "N", | |
1062 | G_FW_VERSION_MAJOR(fw_vers), | |
1063 | G_FW_VERSION_MINOR(fw_vers), | |
1064 | G_FW_VERSION_MICRO(fw_vers)); | |
1065 | } | |
4d22de3e DLR |
1066 | } |
1067 | ||
1068 | static void get_strings(struct net_device *dev, u32 stringset, u8 * data) | |
1069 | { | |
1070 | if (stringset == ETH_SS_STATS) | |
1071 | memcpy(data, stats_strings, sizeof(stats_strings)); | |
1072 | } | |
1073 | ||
1074 | static unsigned long collect_sge_port_stats(struct adapter *adapter, | |
1075 | struct port_info *p, int idx) | |
1076 | { | |
1077 | int i; | |
1078 | unsigned long tot = 0; | |
1079 | ||
1080 | for (i = 0; i < p->nqsets; ++i) | |
1081 | tot += adapter->sge.qs[i + p->first_qset].port_stats[idx]; | |
1082 | return tot; | |
1083 | } | |
1084 | ||
1085 | static void get_stats(struct net_device *dev, struct ethtool_stats *stats, | |
1086 | u64 *data) | |
1087 | { | |
1088 | struct adapter *adapter = dev->priv; | |
1089 | struct port_info *pi = netdev_priv(dev); | |
1090 | const struct mac_stats *s; | |
1091 | ||
1092 | spin_lock(&adapter->stats_lock); | |
1093 | s = t3_mac_update_stats(&pi->mac); | |
1094 | spin_unlock(&adapter->stats_lock); | |
1095 | ||
1096 | *data++ = s->tx_octets; | |
1097 | *data++ = s->tx_frames; | |
1098 | *data++ = s->tx_mcast_frames; | |
1099 | *data++ = s->tx_bcast_frames; | |
1100 | *data++ = s->tx_pause; | |
1101 | *data++ = s->tx_underrun; | |
1102 | *data++ = s->tx_fifo_urun; | |
1103 | ||
1104 | *data++ = s->tx_frames_64; | |
1105 | *data++ = s->tx_frames_65_127; | |
1106 | *data++ = s->tx_frames_128_255; | |
1107 | *data++ = s->tx_frames_256_511; | |
1108 | *data++ = s->tx_frames_512_1023; | |
1109 | *data++ = s->tx_frames_1024_1518; | |
1110 | *data++ = s->tx_frames_1519_max; | |
1111 | ||
1112 | *data++ = s->rx_octets; | |
1113 | *data++ = s->rx_frames; | |
1114 | *data++ = s->rx_mcast_frames; | |
1115 | *data++ = s->rx_bcast_frames; | |
1116 | *data++ = s->rx_pause; | |
1117 | *data++ = s->rx_fcs_errs; | |
1118 | *data++ = s->rx_symbol_errs; | |
1119 | *data++ = s->rx_short; | |
1120 | *data++ = s->rx_jabber; | |
1121 | *data++ = s->rx_too_long; | |
1122 | *data++ = s->rx_fifo_ovfl; | |
1123 | ||
1124 | *data++ = s->rx_frames_64; | |
1125 | *data++ = s->rx_frames_65_127; | |
1126 | *data++ = s->rx_frames_128_255; | |
1127 | *data++ = s->rx_frames_256_511; | |
1128 | *data++ = s->rx_frames_512_1023; | |
1129 | *data++ = s->rx_frames_1024_1518; | |
1130 | *data++ = s->rx_frames_1519_max; | |
1131 | ||
1132 | *data++ = pi->phy.fifo_errors; | |
1133 | ||
1134 | *data++ = collect_sge_port_stats(adapter, pi, SGE_PSTAT_TSO); | |
1135 | *data++ = collect_sge_port_stats(adapter, pi, SGE_PSTAT_VLANEX); | |
1136 | *data++ = collect_sge_port_stats(adapter, pi, SGE_PSTAT_VLANINS); | |
1137 | *data++ = collect_sge_port_stats(adapter, pi, SGE_PSTAT_TX_CSUM); | |
1138 | *data++ = collect_sge_port_stats(adapter, pi, SGE_PSTAT_RX_CSUM_GOOD); | |
1139 | *data++ = s->rx_cong_drops; | |
1140 | } | |
1141 | ||
1142 | static inline void reg_block_dump(struct adapter *ap, void *buf, | |
1143 | unsigned int start, unsigned int end) | |
1144 | { | |
1145 | u32 *p = buf + start; | |
1146 | ||
1147 | for (; start <= end; start += sizeof(u32)) | |
1148 | *p++ = t3_read_reg(ap, start); | |
1149 | } | |
1150 | ||
1151 | static void get_regs(struct net_device *dev, struct ethtool_regs *regs, | |
1152 | void *buf) | |
1153 | { | |
1154 | struct adapter *ap = dev->priv; | |
1155 | ||
1156 | /* | |
1157 | * Version scheme: | |
1158 | * bits 0..9: chip version | |
1159 | * bits 10..15: chip revision | |
1160 | * bit 31: set for PCIe cards | |
1161 | */ | |
1162 | regs->version = 3 | (ap->params.rev << 10) | (is_pcie(ap) << 31); | |
1163 | ||
1164 | /* | |
1165 | * We skip the MAC statistics registers because they are clear-on-read. | |
1166 | * Also reading multi-register stats would need to synchronize with the | |
1167 | * periodic mac stats accumulation. Hard to justify the complexity. | |
1168 | */ | |
1169 | memset(buf, 0, T3_REGMAP_SIZE); | |
1170 | reg_block_dump(ap, buf, 0, A_SG_RSPQ_CREDIT_RETURN); | |
1171 | reg_block_dump(ap, buf, A_SG_HI_DRB_HI_THRSH, A_ULPRX_PBL_ULIMIT); | |
1172 | reg_block_dump(ap, buf, A_ULPTX_CONFIG, A_MPS_INT_CAUSE); | |
1173 | reg_block_dump(ap, buf, A_CPL_SWITCH_CNTRL, A_CPL_MAP_TBL_DATA); | |
1174 | reg_block_dump(ap, buf, A_SMB_GLOBAL_TIME_CFG, A_XGM_SERDES_STAT3); | |
1175 | reg_block_dump(ap, buf, A_XGM_SERDES_STATUS0, | |
1176 | XGM_REG(A_XGM_SERDES_STAT3, 1)); | |
1177 | reg_block_dump(ap, buf, XGM_REG(A_XGM_SERDES_STATUS0, 1), | |
1178 | XGM_REG(A_XGM_RX_SPI4_SOP_EOP_CNT, 1)); | |
1179 | } | |
1180 | ||
1181 | static int restart_autoneg(struct net_device *dev) | |
1182 | { | |
1183 | struct port_info *p = netdev_priv(dev); | |
1184 | ||
1185 | if (!netif_running(dev)) | |
1186 | return -EAGAIN; | |
1187 | if (p->link_config.autoneg != AUTONEG_ENABLE) | |
1188 | return -EINVAL; | |
1189 | p->phy.ops->autoneg_restart(&p->phy); | |
1190 | return 0; | |
1191 | } | |
1192 | ||
1193 | static int cxgb3_phys_id(struct net_device *dev, u32 data) | |
1194 | { | |
1195 | int i; | |
1196 | struct adapter *adapter = dev->priv; | |
1197 | ||
1198 | if (data == 0) | |
1199 | data = 2; | |
1200 | ||
1201 | for (i = 0; i < data * 2; i++) { | |
1202 | t3_set_reg_field(adapter, A_T3DBG_GPIO_EN, F_GPIO0_OUT_VAL, | |
1203 | (i & 1) ? F_GPIO0_OUT_VAL : 0); | |
1204 | if (msleep_interruptible(500)) | |
1205 | break; | |
1206 | } | |
1207 | t3_set_reg_field(adapter, A_T3DBG_GPIO_EN, F_GPIO0_OUT_VAL, | |
1208 | F_GPIO0_OUT_VAL); | |
1209 | return 0; | |
1210 | } | |
1211 | ||
1212 | static int get_settings(struct net_device *dev, struct ethtool_cmd *cmd) | |
1213 | { | |
1214 | struct port_info *p = netdev_priv(dev); | |
1215 | ||
1216 | cmd->supported = p->link_config.supported; | |
1217 | cmd->advertising = p->link_config.advertising; | |
1218 | ||
1219 | if (netif_carrier_ok(dev)) { | |
1220 | cmd->speed = p->link_config.speed; | |
1221 | cmd->duplex = p->link_config.duplex; | |
1222 | } else { | |
1223 | cmd->speed = -1; | |
1224 | cmd->duplex = -1; | |
1225 | } | |
1226 | ||
1227 | cmd->port = (cmd->supported & SUPPORTED_TP) ? PORT_TP : PORT_FIBRE; | |
1228 | cmd->phy_address = p->phy.addr; | |
1229 | cmd->transceiver = XCVR_EXTERNAL; | |
1230 | cmd->autoneg = p->link_config.autoneg; | |
1231 | cmd->maxtxpkt = 0; | |
1232 | cmd->maxrxpkt = 0; | |
1233 | return 0; | |
1234 | } | |
1235 | ||
1236 | static int speed_duplex_to_caps(int speed, int duplex) | |
1237 | { | |
1238 | int cap = 0; | |
1239 | ||
1240 | switch (speed) { | |
1241 | case SPEED_10: | |
1242 | if (duplex == DUPLEX_FULL) | |
1243 | cap = SUPPORTED_10baseT_Full; | |
1244 | else | |
1245 | cap = SUPPORTED_10baseT_Half; | |
1246 | break; | |
1247 | case SPEED_100: | |
1248 | if (duplex == DUPLEX_FULL) | |
1249 | cap = SUPPORTED_100baseT_Full; | |
1250 | else | |
1251 | cap = SUPPORTED_100baseT_Half; | |
1252 | break; | |
1253 | case SPEED_1000: | |
1254 | if (duplex == DUPLEX_FULL) | |
1255 | cap = SUPPORTED_1000baseT_Full; | |
1256 | else | |
1257 | cap = SUPPORTED_1000baseT_Half; | |
1258 | break; | |
1259 | case SPEED_10000: | |
1260 | if (duplex == DUPLEX_FULL) | |
1261 | cap = SUPPORTED_10000baseT_Full; | |
1262 | } | |
1263 | return cap; | |
1264 | } | |
1265 | ||
1266 | #define ADVERTISED_MASK (ADVERTISED_10baseT_Half | ADVERTISED_10baseT_Full | \ | |
1267 | ADVERTISED_100baseT_Half | ADVERTISED_100baseT_Full | \ | |
1268 | ADVERTISED_1000baseT_Half | ADVERTISED_1000baseT_Full | \ | |
1269 | ADVERTISED_10000baseT_Full) | |
1270 | ||
1271 | static int set_settings(struct net_device *dev, struct ethtool_cmd *cmd) | |
1272 | { | |
1273 | struct port_info *p = netdev_priv(dev); | |
1274 | struct link_config *lc = &p->link_config; | |
1275 | ||
1276 | if (!(lc->supported & SUPPORTED_Autoneg)) | |
1277 | return -EOPNOTSUPP; /* can't change speed/duplex */ | |
1278 | ||
1279 | if (cmd->autoneg == AUTONEG_DISABLE) { | |
1280 | int cap = speed_duplex_to_caps(cmd->speed, cmd->duplex); | |
1281 | ||
1282 | if (!(lc->supported & cap) || cmd->speed == SPEED_1000) | |
1283 | return -EINVAL; | |
1284 | lc->requested_speed = cmd->speed; | |
1285 | lc->requested_duplex = cmd->duplex; | |
1286 | lc->advertising = 0; | |
1287 | } else { | |
1288 | cmd->advertising &= ADVERTISED_MASK; | |
1289 | cmd->advertising &= lc->supported; | |
1290 | if (!cmd->advertising) | |
1291 | return -EINVAL; | |
1292 | lc->requested_speed = SPEED_INVALID; | |
1293 | lc->requested_duplex = DUPLEX_INVALID; | |
1294 | lc->advertising = cmd->advertising | ADVERTISED_Autoneg; | |
1295 | } | |
1296 | lc->autoneg = cmd->autoneg; | |
1297 | if (netif_running(dev)) | |
1298 | t3_link_start(&p->phy, &p->mac, lc); | |
1299 | return 0; | |
1300 | } | |
1301 | ||
1302 | static void get_pauseparam(struct net_device *dev, | |
1303 | struct ethtool_pauseparam *epause) | |
1304 | { | |
1305 | struct port_info *p = netdev_priv(dev); | |
1306 | ||
1307 | epause->autoneg = (p->link_config.requested_fc & PAUSE_AUTONEG) != 0; | |
1308 | epause->rx_pause = (p->link_config.fc & PAUSE_RX) != 0; | |
1309 | epause->tx_pause = (p->link_config.fc & PAUSE_TX) != 0; | |
1310 | } | |
1311 | ||
1312 | static int set_pauseparam(struct net_device *dev, | |
1313 | struct ethtool_pauseparam *epause) | |
1314 | { | |
1315 | struct port_info *p = netdev_priv(dev); | |
1316 | struct link_config *lc = &p->link_config; | |
1317 | ||
1318 | if (epause->autoneg == AUTONEG_DISABLE) | |
1319 | lc->requested_fc = 0; | |
1320 | else if (lc->supported & SUPPORTED_Autoneg) | |
1321 | lc->requested_fc = PAUSE_AUTONEG; | |
1322 | else | |
1323 | return -EINVAL; | |
1324 | ||
1325 | if (epause->rx_pause) | |
1326 | lc->requested_fc |= PAUSE_RX; | |
1327 | if (epause->tx_pause) | |
1328 | lc->requested_fc |= PAUSE_TX; | |
1329 | if (lc->autoneg == AUTONEG_ENABLE) { | |
1330 | if (netif_running(dev)) | |
1331 | t3_link_start(&p->phy, &p->mac, lc); | |
1332 | } else { | |
1333 | lc->fc = lc->requested_fc & (PAUSE_RX | PAUSE_TX); | |
1334 | if (netif_running(dev)) | |
1335 | t3_mac_set_speed_duplex_fc(&p->mac, -1, -1, lc->fc); | |
1336 | } | |
1337 | return 0; | |
1338 | } | |
1339 | ||
1340 | static u32 get_rx_csum(struct net_device *dev) | |
1341 | { | |
1342 | struct port_info *p = netdev_priv(dev); | |
1343 | ||
1344 | return p->rx_csum_offload; | |
1345 | } | |
1346 | ||
1347 | static int set_rx_csum(struct net_device *dev, u32 data) | |
1348 | { | |
1349 | struct port_info *p = netdev_priv(dev); | |
1350 | ||
1351 | p->rx_csum_offload = data; | |
1352 | return 0; | |
1353 | } | |
1354 | ||
1355 | static void get_sge_param(struct net_device *dev, struct ethtool_ringparam *e) | |
1356 | { | |
1357 | struct adapter *adapter = dev->priv; | |
1358 | ||
1359 | e->rx_max_pending = MAX_RX_BUFFERS; | |
1360 | e->rx_mini_max_pending = 0; | |
1361 | e->rx_jumbo_max_pending = MAX_RX_JUMBO_BUFFERS; | |
1362 | e->tx_max_pending = MAX_TXQ_ENTRIES; | |
1363 | ||
1364 | e->rx_pending = adapter->params.sge.qset[0].fl_size; | |
1365 | e->rx_mini_pending = adapter->params.sge.qset[0].rspq_size; | |
1366 | e->rx_jumbo_pending = adapter->params.sge.qset[0].jumbo_size; | |
1367 | e->tx_pending = adapter->params.sge.qset[0].txq_size[0]; | |
1368 | } | |
1369 | ||
1370 | static int set_sge_param(struct net_device *dev, struct ethtool_ringparam *e) | |
1371 | { | |
1372 | int i; | |
1373 | struct adapter *adapter = dev->priv; | |
1374 | ||
1375 | if (e->rx_pending > MAX_RX_BUFFERS || | |
1376 | e->rx_jumbo_pending > MAX_RX_JUMBO_BUFFERS || | |
1377 | e->tx_pending > MAX_TXQ_ENTRIES || | |
1378 | e->rx_mini_pending > MAX_RSPQ_ENTRIES || | |
1379 | e->rx_mini_pending < MIN_RSPQ_ENTRIES || | |
1380 | e->rx_pending < MIN_FL_ENTRIES || | |
1381 | e->rx_jumbo_pending < MIN_FL_ENTRIES || | |
1382 | e->tx_pending < adapter->params.nports * MIN_TXQ_ENTRIES) | |
1383 | return -EINVAL; | |
1384 | ||
1385 | if (adapter->flags & FULL_INIT_DONE) | |
1386 | return -EBUSY; | |
1387 | ||
1388 | for (i = 0; i < SGE_QSETS; ++i) { | |
1389 | struct qset_params *q = &adapter->params.sge.qset[i]; | |
1390 | ||
1391 | q->rspq_size = e->rx_mini_pending; | |
1392 | q->fl_size = e->rx_pending; | |
1393 | q->jumbo_size = e->rx_jumbo_pending; | |
1394 | q->txq_size[0] = e->tx_pending; | |
1395 | q->txq_size[1] = e->tx_pending; | |
1396 | q->txq_size[2] = e->tx_pending; | |
1397 | } | |
1398 | return 0; | |
1399 | } | |
1400 | ||
1401 | static int set_coalesce(struct net_device *dev, struct ethtool_coalesce *c) | |
1402 | { | |
1403 | struct adapter *adapter = dev->priv; | |
1404 | struct qset_params *qsp = &adapter->params.sge.qset[0]; | |
1405 | struct sge_qset *qs = &adapter->sge.qs[0]; | |
1406 | ||
1407 | if (c->rx_coalesce_usecs * 10 > M_NEWTIMER) | |
1408 | return -EINVAL; | |
1409 | ||
1410 | qsp->coalesce_usecs = c->rx_coalesce_usecs; | |
1411 | t3_update_qset_coalesce(qs, qsp); | |
1412 | return 0; | |
1413 | } | |
1414 | ||
1415 | static int get_coalesce(struct net_device *dev, struct ethtool_coalesce *c) | |
1416 | { | |
1417 | struct adapter *adapter = dev->priv; | |
1418 | struct qset_params *q = adapter->params.sge.qset; | |
1419 | ||
1420 | c->rx_coalesce_usecs = q->coalesce_usecs; | |
1421 | return 0; | |
1422 | } | |
1423 | ||
1424 | static int get_eeprom(struct net_device *dev, struct ethtool_eeprom *e, | |
1425 | u8 * data) | |
1426 | { | |
1427 | int i, err = 0; | |
1428 | struct adapter *adapter = dev->priv; | |
1429 | ||
1430 | u8 *buf = kmalloc(EEPROMSIZE, GFP_KERNEL); | |
1431 | if (!buf) | |
1432 | return -ENOMEM; | |
1433 | ||
1434 | e->magic = EEPROM_MAGIC; | |
1435 | for (i = e->offset & ~3; !err && i < e->offset + e->len; i += 4) | |
1436 | err = t3_seeprom_read(adapter, i, (u32 *) & buf[i]); | |
1437 | ||
1438 | if (!err) | |
1439 | memcpy(data, buf + e->offset, e->len); | |
1440 | kfree(buf); | |
1441 | return err; | |
1442 | } | |
1443 | ||
1444 | static int set_eeprom(struct net_device *dev, struct ethtool_eeprom *eeprom, | |
1445 | u8 * data) | |
1446 | { | |
1447 | u8 *buf; | |
1448 | int err = 0; | |
1449 | u32 aligned_offset, aligned_len, *p; | |
1450 | struct adapter *adapter = dev->priv; | |
1451 | ||
1452 | if (eeprom->magic != EEPROM_MAGIC) | |
1453 | return -EINVAL; | |
1454 | ||
1455 | aligned_offset = eeprom->offset & ~3; | |
1456 | aligned_len = (eeprom->len + (eeprom->offset & 3) + 3) & ~3; | |
1457 | ||
1458 | if (aligned_offset != eeprom->offset || aligned_len != eeprom->len) { | |
1459 | buf = kmalloc(aligned_len, GFP_KERNEL); | |
1460 | if (!buf) | |
1461 | return -ENOMEM; | |
1462 | err = t3_seeprom_read(adapter, aligned_offset, (u32 *) buf); | |
1463 | if (!err && aligned_len > 4) | |
1464 | err = t3_seeprom_read(adapter, | |
1465 | aligned_offset + aligned_len - 4, | |
1466 | (u32 *) & buf[aligned_len - 4]); | |
1467 | if (err) | |
1468 | goto out; | |
1469 | memcpy(buf + (eeprom->offset & 3), data, eeprom->len); | |
1470 | } else | |
1471 | buf = data; | |
1472 | ||
1473 | err = t3_seeprom_wp(adapter, 0); | |
1474 | if (err) | |
1475 | goto out; | |
1476 | ||
1477 | for (p = (u32 *) buf; !err && aligned_len; aligned_len -= 4, p++) { | |
1478 | err = t3_seeprom_write(adapter, aligned_offset, *p); | |
1479 | aligned_offset += 4; | |
1480 | } | |
1481 | ||
1482 | if (!err) | |
1483 | err = t3_seeprom_wp(adapter, 1); | |
1484 | out: | |
1485 | if (buf != data) | |
1486 | kfree(buf); | |
1487 | return err; | |
1488 | } | |
1489 | ||
1490 | static void get_wol(struct net_device *dev, struct ethtool_wolinfo *wol) | |
1491 | { | |
1492 | wol->supported = 0; | |
1493 | wol->wolopts = 0; | |
1494 | memset(&wol->sopass, 0, sizeof(wol->sopass)); | |
1495 | } | |
1496 | ||
1497 | static const struct ethtool_ops cxgb_ethtool_ops = { | |
1498 | .get_settings = get_settings, | |
1499 | .set_settings = set_settings, | |
1500 | .get_drvinfo = get_drvinfo, | |
1501 | .get_msglevel = get_msglevel, | |
1502 | .set_msglevel = set_msglevel, | |
1503 | .get_ringparam = get_sge_param, | |
1504 | .set_ringparam = set_sge_param, | |
1505 | .get_coalesce = get_coalesce, | |
1506 | .set_coalesce = set_coalesce, | |
1507 | .get_eeprom_len = get_eeprom_len, | |
1508 | .get_eeprom = get_eeprom, | |
1509 | .set_eeprom = set_eeprom, | |
1510 | .get_pauseparam = get_pauseparam, | |
1511 | .set_pauseparam = set_pauseparam, | |
1512 | .get_rx_csum = get_rx_csum, | |
1513 | .set_rx_csum = set_rx_csum, | |
1514 | .get_tx_csum = ethtool_op_get_tx_csum, | |
1515 | .set_tx_csum = ethtool_op_set_tx_csum, | |
1516 | .get_sg = ethtool_op_get_sg, | |
1517 | .set_sg = ethtool_op_set_sg, | |
1518 | .get_link = ethtool_op_get_link, | |
1519 | .get_strings = get_strings, | |
1520 | .phys_id = cxgb3_phys_id, | |
1521 | .nway_reset = restart_autoneg, | |
1522 | .get_stats_count = get_stats_count, | |
1523 | .get_ethtool_stats = get_stats, | |
1524 | .get_regs_len = get_regs_len, | |
1525 | .get_regs = get_regs, | |
1526 | .get_wol = get_wol, | |
1527 | .get_tso = ethtool_op_get_tso, | |
1528 | .set_tso = ethtool_op_set_tso, | |
1529 | .get_perm_addr = ethtool_op_get_perm_addr | |
1530 | }; | |
1531 | ||
1532 | static int in_range(int val, int lo, int hi) | |
1533 | { | |
1534 | return val < 0 || (val <= hi && val >= lo); | |
1535 | } | |
1536 | ||
1537 | static int cxgb_extension_ioctl(struct net_device *dev, void __user *useraddr) | |
1538 | { | |
1539 | int ret; | |
1540 | u32 cmd; | |
1541 | struct adapter *adapter = dev->priv; | |
1542 | ||
1543 | if (copy_from_user(&cmd, useraddr, sizeof(cmd))) | |
1544 | return -EFAULT; | |
1545 | ||
1546 | switch (cmd) { | |
1547 | case CHELSIO_SETREG:{ | |
1548 | struct ch_reg edata; | |
1549 | ||
1550 | if (!capable(CAP_NET_ADMIN)) | |
1551 | return -EPERM; | |
1552 | if (copy_from_user(&edata, useraddr, sizeof(edata))) | |
1553 | return -EFAULT; | |
1554 | if ((edata.addr & 3) != 0 | |
1555 | || edata.addr >= adapter->mmio_len) | |
1556 | return -EINVAL; | |
1557 | writel(edata.val, adapter->regs + edata.addr); | |
1558 | break; | |
1559 | } | |
1560 | case CHELSIO_GETREG:{ | |
1561 | struct ch_reg edata; | |
1562 | ||
1563 | if (copy_from_user(&edata, useraddr, sizeof(edata))) | |
1564 | return -EFAULT; | |
1565 | if ((edata.addr & 3) != 0 | |
1566 | || edata.addr >= adapter->mmio_len) | |
1567 | return -EINVAL; | |
1568 | edata.val = readl(adapter->regs + edata.addr); | |
1569 | if (copy_to_user(useraddr, &edata, sizeof(edata))) | |
1570 | return -EFAULT; | |
1571 | break; | |
1572 | } | |
1573 | case CHELSIO_SET_QSET_PARAMS:{ | |
1574 | int i; | |
1575 | struct qset_params *q; | |
1576 | struct ch_qset_params t; | |
1577 | ||
1578 | if (!capable(CAP_NET_ADMIN)) | |
1579 | return -EPERM; | |
1580 | if (copy_from_user(&t, useraddr, sizeof(t))) | |
1581 | return -EFAULT; | |
1582 | if (t.qset_idx >= SGE_QSETS) | |
1583 | return -EINVAL; | |
1584 | if (!in_range(t.intr_lat, 0, M_NEWTIMER) || | |
1585 | !in_range(t.cong_thres, 0, 255) || | |
1586 | !in_range(t.txq_size[0], MIN_TXQ_ENTRIES, | |
1587 | MAX_TXQ_ENTRIES) || | |
1588 | !in_range(t.txq_size[1], MIN_TXQ_ENTRIES, | |
1589 | MAX_TXQ_ENTRIES) || | |
1590 | !in_range(t.txq_size[2], MIN_CTRL_TXQ_ENTRIES, | |
1591 | MAX_CTRL_TXQ_ENTRIES) || | |
1592 | !in_range(t.fl_size[0], MIN_FL_ENTRIES, | |
1593 | MAX_RX_BUFFERS) | |
1594 | || !in_range(t.fl_size[1], MIN_FL_ENTRIES, | |
1595 | MAX_RX_JUMBO_BUFFERS) | |
1596 | || !in_range(t.rspq_size, MIN_RSPQ_ENTRIES, | |
1597 | MAX_RSPQ_ENTRIES)) | |
1598 | return -EINVAL; | |
1599 | if ((adapter->flags & FULL_INIT_DONE) && | |
1600 | (t.rspq_size >= 0 || t.fl_size[0] >= 0 || | |
1601 | t.fl_size[1] >= 0 || t.txq_size[0] >= 0 || | |
1602 | t.txq_size[1] >= 0 || t.txq_size[2] >= 0 || | |
1603 | t.polling >= 0 || t.cong_thres >= 0)) | |
1604 | return -EBUSY; | |
1605 | ||
1606 | q = &adapter->params.sge.qset[t.qset_idx]; | |
1607 | ||
1608 | if (t.rspq_size >= 0) | |
1609 | q->rspq_size = t.rspq_size; | |
1610 | if (t.fl_size[0] >= 0) | |
1611 | q->fl_size = t.fl_size[0]; | |
1612 | if (t.fl_size[1] >= 0) | |
1613 | q->jumbo_size = t.fl_size[1]; | |
1614 | if (t.txq_size[0] >= 0) | |
1615 | q->txq_size[0] = t.txq_size[0]; | |
1616 | if (t.txq_size[1] >= 0) | |
1617 | q->txq_size[1] = t.txq_size[1]; | |
1618 | if (t.txq_size[2] >= 0) | |
1619 | q->txq_size[2] = t.txq_size[2]; | |
1620 | if (t.cong_thres >= 0) | |
1621 | q->cong_thres = t.cong_thres; | |
1622 | if (t.intr_lat >= 0) { | |
1623 | struct sge_qset *qs = | |
1624 | &adapter->sge.qs[t.qset_idx]; | |
1625 | ||
1626 | q->coalesce_usecs = t.intr_lat; | |
1627 | t3_update_qset_coalesce(qs, q); | |
1628 | } | |
1629 | if (t.polling >= 0) { | |
1630 | if (adapter->flags & USING_MSIX) | |
1631 | q->polling = t.polling; | |
1632 | else { | |
1633 | /* No polling with INTx for T3A */ | |
1634 | if (adapter->params.rev == 0 && | |
1635 | !(adapter->flags & USING_MSI)) | |
1636 | t.polling = 0; | |
1637 | ||
1638 | for (i = 0; i < SGE_QSETS; i++) { | |
1639 | q = &adapter->params.sge. | |
1640 | qset[i]; | |
1641 | q->polling = t.polling; | |
1642 | } | |
1643 | } | |
1644 | } | |
1645 | break; | |
1646 | } | |
1647 | case CHELSIO_GET_QSET_PARAMS:{ | |
1648 | struct qset_params *q; | |
1649 | struct ch_qset_params t; | |
1650 | ||
1651 | if (copy_from_user(&t, useraddr, sizeof(t))) | |
1652 | return -EFAULT; | |
1653 | if (t.qset_idx >= SGE_QSETS) | |
1654 | return -EINVAL; | |
1655 | ||
1656 | q = &adapter->params.sge.qset[t.qset_idx]; | |
1657 | t.rspq_size = q->rspq_size; | |
1658 | t.txq_size[0] = q->txq_size[0]; | |
1659 | t.txq_size[1] = q->txq_size[1]; | |
1660 | t.txq_size[2] = q->txq_size[2]; | |
1661 | t.fl_size[0] = q->fl_size; | |
1662 | t.fl_size[1] = q->jumbo_size; | |
1663 | t.polling = q->polling; | |
1664 | t.intr_lat = q->coalesce_usecs; | |
1665 | t.cong_thres = q->cong_thres; | |
1666 | ||
1667 | if (copy_to_user(useraddr, &t, sizeof(t))) | |
1668 | return -EFAULT; | |
1669 | break; | |
1670 | } | |
1671 | case CHELSIO_SET_QSET_NUM:{ | |
1672 | struct ch_reg edata; | |
1673 | struct port_info *pi = netdev_priv(dev); | |
1674 | unsigned int i, first_qset = 0, other_qsets = 0; | |
1675 | ||
1676 | if (!capable(CAP_NET_ADMIN)) | |
1677 | return -EPERM; | |
1678 | if (adapter->flags & FULL_INIT_DONE) | |
1679 | return -EBUSY; | |
1680 | if (copy_from_user(&edata, useraddr, sizeof(edata))) | |
1681 | return -EFAULT; | |
1682 | if (edata.val < 1 || | |
1683 | (edata.val > 1 && !(adapter->flags & USING_MSIX))) | |
1684 | return -EINVAL; | |
1685 | ||
1686 | for_each_port(adapter, i) | |
1687 | if (adapter->port[i] && adapter->port[i] != dev) | |
1688 | other_qsets += adap2pinfo(adapter, i)->nqsets; | |
1689 | ||
1690 | if (edata.val + other_qsets > SGE_QSETS) | |
1691 | return -EINVAL; | |
1692 | ||
1693 | pi->nqsets = edata.val; | |
1694 | ||
1695 | for_each_port(adapter, i) | |
1696 | if (adapter->port[i]) { | |
1697 | pi = adap2pinfo(adapter, i); | |
1698 | pi->first_qset = first_qset; | |
1699 | first_qset += pi->nqsets; | |
1700 | } | |
1701 | break; | |
1702 | } | |
1703 | case CHELSIO_GET_QSET_NUM:{ | |
1704 | struct ch_reg edata; | |
1705 | struct port_info *pi = netdev_priv(dev); | |
1706 | ||
1707 | edata.cmd = CHELSIO_GET_QSET_NUM; | |
1708 | edata.val = pi->nqsets; | |
1709 | if (copy_to_user(useraddr, &edata, sizeof(edata))) | |
1710 | return -EFAULT; | |
1711 | break; | |
1712 | } | |
1713 | case CHELSIO_LOAD_FW:{ | |
1714 | u8 *fw_data; | |
1715 | struct ch_mem_range t; | |
1716 | ||
1717 | if (!capable(CAP_NET_ADMIN)) | |
1718 | return -EPERM; | |
1719 | if (copy_from_user(&t, useraddr, sizeof(t))) | |
1720 | return -EFAULT; | |
1721 | ||
1722 | fw_data = kmalloc(t.len, GFP_KERNEL); | |
1723 | if (!fw_data) | |
1724 | return -ENOMEM; | |
1725 | ||
1726 | if (copy_from_user | |
1727 | (fw_data, useraddr + sizeof(t), t.len)) { | |
1728 | kfree(fw_data); | |
1729 | return -EFAULT; | |
1730 | } | |
1731 | ||
1732 | ret = t3_load_fw(adapter, fw_data, t.len); | |
1733 | kfree(fw_data); | |
1734 | if (ret) | |
1735 | return ret; | |
1736 | break; | |
1737 | } | |
1738 | case CHELSIO_SETMTUTAB:{ | |
1739 | struct ch_mtus m; | |
1740 | int i; | |
1741 | ||
1742 | if (!is_offload(adapter)) | |
1743 | return -EOPNOTSUPP; | |
1744 | if (!capable(CAP_NET_ADMIN)) | |
1745 | return -EPERM; | |
1746 | if (offload_running(adapter)) | |
1747 | return -EBUSY; | |
1748 | if (copy_from_user(&m, useraddr, sizeof(m))) | |
1749 | return -EFAULT; | |
1750 | if (m.nmtus != NMTUS) | |
1751 | return -EINVAL; | |
1752 | if (m.mtus[0] < 81) /* accommodate SACK */ | |
1753 | return -EINVAL; | |
1754 | ||
1755 | /* MTUs must be in ascending order */ | |
1756 | for (i = 1; i < NMTUS; ++i) | |
1757 | if (m.mtus[i] < m.mtus[i - 1]) | |
1758 | return -EINVAL; | |
1759 | ||
1760 | memcpy(adapter->params.mtus, m.mtus, | |
1761 | sizeof(adapter->params.mtus)); | |
1762 | break; | |
1763 | } | |
1764 | case CHELSIO_GET_PM:{ | |
1765 | struct tp_params *p = &adapter->params.tp; | |
1766 | struct ch_pm m = {.cmd = CHELSIO_GET_PM }; | |
1767 | ||
1768 | if (!is_offload(adapter)) | |
1769 | return -EOPNOTSUPP; | |
1770 | m.tx_pg_sz = p->tx_pg_size; | |
1771 | m.tx_num_pg = p->tx_num_pgs; | |
1772 | m.rx_pg_sz = p->rx_pg_size; | |
1773 | m.rx_num_pg = p->rx_num_pgs; | |
1774 | m.pm_total = p->pmtx_size + p->chan_rx_size * p->nchan; | |
1775 | if (copy_to_user(useraddr, &m, sizeof(m))) | |
1776 | return -EFAULT; | |
1777 | break; | |
1778 | } | |
1779 | case CHELSIO_SET_PM:{ | |
1780 | struct ch_pm m; | |
1781 | struct tp_params *p = &adapter->params.tp; | |
1782 | ||
1783 | if (!is_offload(adapter)) | |
1784 | return -EOPNOTSUPP; | |
1785 | if (!capable(CAP_NET_ADMIN)) | |
1786 | return -EPERM; | |
1787 | if (adapter->flags & FULL_INIT_DONE) | |
1788 | return -EBUSY; | |
1789 | if (copy_from_user(&m, useraddr, sizeof(m))) | |
1790 | return -EFAULT; | |
1791 | if (!m.rx_pg_sz || (m.rx_pg_sz & (m.rx_pg_sz - 1)) || | |
1792 | !m.tx_pg_sz || (m.tx_pg_sz & (m.tx_pg_sz - 1))) | |
1793 | return -EINVAL; /* not power of 2 */ | |
1794 | if (!(m.rx_pg_sz & 0x14000)) | |
1795 | return -EINVAL; /* not 16KB or 64KB */ | |
1796 | if (!(m.tx_pg_sz & 0x1554000)) | |
1797 | return -EINVAL; | |
1798 | if (m.tx_num_pg == -1) | |
1799 | m.tx_num_pg = p->tx_num_pgs; | |
1800 | if (m.rx_num_pg == -1) | |
1801 | m.rx_num_pg = p->rx_num_pgs; | |
1802 | if (m.tx_num_pg % 24 || m.rx_num_pg % 24) | |
1803 | return -EINVAL; | |
1804 | if (m.rx_num_pg * m.rx_pg_sz > p->chan_rx_size || | |
1805 | m.tx_num_pg * m.tx_pg_sz > p->chan_tx_size) | |
1806 | return -EINVAL; | |
1807 | p->rx_pg_size = m.rx_pg_sz; | |
1808 | p->tx_pg_size = m.tx_pg_sz; | |
1809 | p->rx_num_pgs = m.rx_num_pg; | |
1810 | p->tx_num_pgs = m.tx_num_pg; | |
1811 | break; | |
1812 | } | |
1813 | case CHELSIO_GET_MEM:{ | |
1814 | struct ch_mem_range t; | |
1815 | struct mc7 *mem; | |
1816 | u64 buf[32]; | |
1817 | ||
1818 | if (!is_offload(adapter)) | |
1819 | return -EOPNOTSUPP; | |
1820 | if (!(adapter->flags & FULL_INIT_DONE)) | |
1821 | return -EIO; /* need the memory controllers */ | |
1822 | if (copy_from_user(&t, useraddr, sizeof(t))) | |
1823 | return -EFAULT; | |
1824 | if ((t.addr & 7) || (t.len & 7)) | |
1825 | return -EINVAL; | |
1826 | if (t.mem_id == MEM_CM) | |
1827 | mem = &adapter->cm; | |
1828 | else if (t.mem_id == MEM_PMRX) | |
1829 | mem = &adapter->pmrx; | |
1830 | else if (t.mem_id == MEM_PMTX) | |
1831 | mem = &adapter->pmtx; | |
1832 | else | |
1833 | return -EINVAL; | |
1834 | ||
1835 | /* | |
1836 | * Version scheme: | |
1837 | * bits 0..9: chip version | |
1838 | * bits 10..15: chip revision | |
1839 | */ | |
1840 | t.version = 3 | (adapter->params.rev << 10); | |
1841 | if (copy_to_user(useraddr, &t, sizeof(t))) | |
1842 | return -EFAULT; | |
1843 | ||
1844 | /* | |
1845 | * Read 256 bytes at a time as len can be large and we don't | |
1846 | * want to use huge intermediate buffers. | |
1847 | */ | |
1848 | useraddr += sizeof(t); /* advance to start of buffer */ | |
1849 | while (t.len) { | |
1850 | unsigned int chunk = | |
1851 | min_t(unsigned int, t.len, sizeof(buf)); | |
1852 | ||
1853 | ret = | |
1854 | t3_mc7_bd_read(mem, t.addr / 8, chunk / 8, | |
1855 | buf); | |
1856 | if (ret) | |
1857 | return ret; | |
1858 | if (copy_to_user(useraddr, buf, chunk)) | |
1859 | return -EFAULT; | |
1860 | useraddr += chunk; | |
1861 | t.addr += chunk; | |
1862 | t.len -= chunk; | |
1863 | } | |
1864 | break; | |
1865 | } | |
1866 | case CHELSIO_SET_TRACE_FILTER:{ | |
1867 | struct ch_trace t; | |
1868 | const struct trace_params *tp; | |
1869 | ||
1870 | if (!capable(CAP_NET_ADMIN)) | |
1871 | return -EPERM; | |
1872 | if (!offload_running(adapter)) | |
1873 | return -EAGAIN; | |
1874 | if (copy_from_user(&t, useraddr, sizeof(t))) | |
1875 | return -EFAULT; | |
1876 | ||
1877 | tp = (const struct trace_params *)&t.sip; | |
1878 | if (t.config_tx) | |
1879 | t3_config_trace_filter(adapter, tp, 0, | |
1880 | t.invert_match, | |
1881 | t.trace_tx); | |
1882 | if (t.config_rx) | |
1883 | t3_config_trace_filter(adapter, tp, 1, | |
1884 | t.invert_match, | |
1885 | t.trace_rx); | |
1886 | break; | |
1887 | } | |
1888 | case CHELSIO_SET_PKTSCHED:{ | |
4d22de3e | 1889 | struct ch_pktsched_params p; |
4d22de3e | 1890 | |
14ab9892 DLR |
1891 | if (!capable(CAP_NET_ADMIN)) |
1892 | return -EPERM; | |
1893 | if (!adapter->open_device_map) | |
1894 | return -EAGAIN; /* uP and SGE must be running */ | |
4d22de3e | 1895 | if (copy_from_user(&p, useraddr, sizeof(p))) |
14ab9892 DLR |
1896 | return -EFAULT; |
1897 | send_pktsched_cmd(adapter, p.sched, p.idx, p.min, p.max, | |
1898 | p.binding); | |
4d22de3e | 1899 | break; |
14ab9892 | 1900 | |
4d22de3e DLR |
1901 | } |
1902 | default: | |
1903 | return -EOPNOTSUPP; | |
1904 | } | |
1905 | return 0; | |
1906 | } | |
1907 | ||
1908 | static int cxgb_ioctl(struct net_device *dev, struct ifreq *req, int cmd) | |
1909 | { | |
1910 | int ret, mmd; | |
1911 | struct adapter *adapter = dev->priv; | |
1912 | struct port_info *pi = netdev_priv(dev); | |
1913 | struct mii_ioctl_data *data = if_mii(req); | |
1914 | ||
1915 | switch (cmd) { | |
1916 | case SIOCGMIIPHY: | |
1917 | data->phy_id = pi->phy.addr; | |
1918 | /* FALLTHRU */ | |
1919 | case SIOCGMIIREG:{ | |
1920 | u32 val; | |
1921 | struct cphy *phy = &pi->phy; | |
1922 | ||
1923 | if (!phy->mdio_read) | |
1924 | return -EOPNOTSUPP; | |
1925 | if (is_10G(adapter)) { | |
1926 | mmd = data->phy_id >> 8; | |
1927 | if (!mmd) | |
1928 | mmd = MDIO_DEV_PCS; | |
1929 | else if (mmd > MDIO_DEV_XGXS) | |
1930 | return -EINVAL; | |
1931 | ||
1932 | ret = | |
1933 | phy->mdio_read(adapter, data->phy_id & 0x1f, | |
1934 | mmd, data->reg_num, &val); | |
1935 | } else | |
1936 | ret = | |
1937 | phy->mdio_read(adapter, data->phy_id & 0x1f, | |
1938 | 0, data->reg_num & 0x1f, | |
1939 | &val); | |
1940 | if (!ret) | |
1941 | data->val_out = val; | |
1942 | break; | |
1943 | } | |
1944 | case SIOCSMIIREG:{ | |
1945 | struct cphy *phy = &pi->phy; | |
1946 | ||
1947 | if (!capable(CAP_NET_ADMIN)) | |
1948 | return -EPERM; | |
1949 | if (!phy->mdio_write) | |
1950 | return -EOPNOTSUPP; | |
1951 | if (is_10G(adapter)) { | |
1952 | mmd = data->phy_id >> 8; | |
1953 | if (!mmd) | |
1954 | mmd = MDIO_DEV_PCS; | |
1955 | else if (mmd > MDIO_DEV_XGXS) | |
1956 | return -EINVAL; | |
1957 | ||
1958 | ret = | |
1959 | phy->mdio_write(adapter, | |
1960 | data->phy_id & 0x1f, mmd, | |
1961 | data->reg_num, | |
1962 | data->val_in); | |
1963 | } else | |
1964 | ret = | |
1965 | phy->mdio_write(adapter, | |
1966 | data->phy_id & 0x1f, 0, | |
1967 | data->reg_num & 0x1f, | |
1968 | data->val_in); | |
1969 | break; | |
1970 | } | |
1971 | case SIOCCHIOCTL: | |
1972 | return cxgb_extension_ioctl(dev, req->ifr_data); | |
1973 | default: | |
1974 | return -EOPNOTSUPP; | |
1975 | } | |
1976 | return ret; | |
1977 | } | |
1978 | ||
1979 | static int cxgb_change_mtu(struct net_device *dev, int new_mtu) | |
1980 | { | |
1981 | int ret; | |
1982 | struct adapter *adapter = dev->priv; | |
1983 | struct port_info *pi = netdev_priv(dev); | |
1984 | ||
1985 | if (new_mtu < 81) /* accommodate SACK */ | |
1986 | return -EINVAL; | |
1987 | if ((ret = t3_mac_set_mtu(&pi->mac, new_mtu))) | |
1988 | return ret; | |
1989 | dev->mtu = new_mtu; | |
1990 | init_port_mtus(adapter); | |
1991 | if (adapter->params.rev == 0 && offload_running(adapter)) | |
1992 | t3_load_mtus(adapter, adapter->params.mtus, | |
1993 | adapter->params.a_wnd, adapter->params.b_wnd, | |
1994 | adapter->port[0]->mtu); | |
1995 | return 0; | |
1996 | } | |
1997 | ||
1998 | static int cxgb_set_mac_addr(struct net_device *dev, void *p) | |
1999 | { | |
2000 | struct adapter *adapter = dev->priv; | |
2001 | struct port_info *pi = netdev_priv(dev); | |
2002 | struct sockaddr *addr = p; | |
2003 | ||
2004 | if (!is_valid_ether_addr(addr->sa_data)) | |
2005 | return -EINVAL; | |
2006 | ||
2007 | memcpy(dev->dev_addr, addr->sa_data, dev->addr_len); | |
2008 | t3_mac_set_address(&pi->mac, 0, dev->dev_addr); | |
2009 | if (offload_running(adapter)) | |
2010 | write_smt_entry(adapter, pi->port_id); | |
2011 | return 0; | |
2012 | } | |
2013 | ||
2014 | /** | |
2015 | * t3_synchronize_rx - wait for current Rx processing on a port to complete | |
2016 | * @adap: the adapter | |
2017 | * @p: the port | |
2018 | * | |
2019 | * Ensures that current Rx processing on any of the queues associated with | |
2020 | * the given port completes before returning. We do this by acquiring and | |
2021 | * releasing the locks of the response queues associated with the port. | |
2022 | */ | |
2023 | static void t3_synchronize_rx(struct adapter *adap, const struct port_info *p) | |
2024 | { | |
2025 | int i; | |
2026 | ||
2027 | for (i = 0; i < p->nqsets; i++) { | |
2028 | struct sge_rspq *q = &adap->sge.qs[i + p->first_qset].rspq; | |
2029 | ||
2030 | spin_lock_irq(&q->lock); | |
2031 | spin_unlock_irq(&q->lock); | |
2032 | } | |
2033 | } | |
2034 | ||
2035 | static void vlan_rx_register(struct net_device *dev, struct vlan_group *grp) | |
2036 | { | |
2037 | struct adapter *adapter = dev->priv; | |
2038 | struct port_info *pi = netdev_priv(dev); | |
2039 | ||
2040 | pi->vlan_grp = grp; | |
2041 | if (adapter->params.rev > 0) | |
2042 | t3_set_vlan_accel(adapter, 1 << pi->port_id, grp != NULL); | |
2043 | else { | |
2044 | /* single control for all ports */ | |
2045 | unsigned int i, have_vlans = 0; | |
2046 | for_each_port(adapter, i) | |
2047 | have_vlans |= adap2pinfo(adapter, i)->vlan_grp != NULL; | |
2048 | ||
2049 | t3_set_vlan_accel(adapter, 1, have_vlans); | |
2050 | } | |
2051 | t3_synchronize_rx(adapter, pi); | |
2052 | } | |
2053 | ||
2054 | static void vlan_rx_kill_vid(struct net_device *dev, unsigned short vid) | |
2055 | { | |
2056 | /* nothing */ | |
2057 | } | |
2058 | ||
2059 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
2060 | static void cxgb_netpoll(struct net_device *dev) | |
2061 | { | |
2062 | struct adapter *adapter = dev->priv; | |
2063 | struct sge_qset *qs = dev2qset(dev); | |
2064 | ||
2065 | t3_intr_handler(adapter, qs->rspq.polling) (adapter->pdev->irq, | |
2066 | adapter); | |
2067 | } | |
2068 | #endif | |
2069 | ||
2070 | /* | |
2071 | * Periodic accumulation of MAC statistics. | |
2072 | */ | |
2073 | static void mac_stats_update(struct adapter *adapter) | |
2074 | { | |
2075 | int i; | |
2076 | ||
2077 | for_each_port(adapter, i) { | |
2078 | struct net_device *dev = adapter->port[i]; | |
2079 | struct port_info *p = netdev_priv(dev); | |
2080 | ||
2081 | if (netif_running(dev)) { | |
2082 | spin_lock(&adapter->stats_lock); | |
2083 | t3_mac_update_stats(&p->mac); | |
2084 | spin_unlock(&adapter->stats_lock); | |
2085 | } | |
2086 | } | |
2087 | } | |
2088 | ||
2089 | static void check_link_status(struct adapter *adapter) | |
2090 | { | |
2091 | int i; | |
2092 | ||
2093 | for_each_port(adapter, i) { | |
2094 | struct net_device *dev = adapter->port[i]; | |
2095 | struct port_info *p = netdev_priv(dev); | |
2096 | ||
2097 | if (!(p->port_type->caps & SUPPORTED_IRQ) && netif_running(dev)) | |
2098 | t3_link_changed(adapter, i); | |
2099 | } | |
2100 | } | |
2101 | ||
2102 | static void t3_adap_check_task(struct work_struct *work) | |
2103 | { | |
2104 | struct adapter *adapter = container_of(work, struct adapter, | |
2105 | adap_check_task.work); | |
2106 | const struct adapter_params *p = &adapter->params; | |
2107 | ||
2108 | adapter->check_task_cnt++; | |
2109 | ||
2110 | /* Check link status for PHYs without interrupts */ | |
2111 | if (p->linkpoll_period) | |
2112 | check_link_status(adapter); | |
2113 | ||
2114 | /* Accumulate MAC stats if needed */ | |
2115 | if (!p->linkpoll_period || | |
2116 | (adapter->check_task_cnt * p->linkpoll_period) / 10 >= | |
2117 | p->stats_update_period) { | |
2118 | mac_stats_update(adapter); | |
2119 | adapter->check_task_cnt = 0; | |
2120 | } | |
2121 | ||
2122 | /* Schedule the next check update if any port is active. */ | |
2123 | spin_lock(&adapter->work_lock); | |
2124 | if (adapter->open_device_map & PORT_MASK) | |
2125 | schedule_chk_task(adapter); | |
2126 | spin_unlock(&adapter->work_lock); | |
2127 | } | |
2128 | ||
2129 | /* | |
2130 | * Processes external (PHY) interrupts in process context. | |
2131 | */ | |
2132 | static void ext_intr_task(struct work_struct *work) | |
2133 | { | |
2134 | struct adapter *adapter = container_of(work, struct adapter, | |
2135 | ext_intr_handler_task); | |
2136 | ||
2137 | t3_phy_intr_handler(adapter); | |
2138 | ||
2139 | /* Now reenable external interrupts */ | |
2140 | spin_lock_irq(&adapter->work_lock); | |
2141 | if (adapter->slow_intr_mask) { | |
2142 | adapter->slow_intr_mask |= F_T3DBG; | |
2143 | t3_write_reg(adapter, A_PL_INT_CAUSE0, F_T3DBG); | |
2144 | t3_write_reg(adapter, A_PL_INT_ENABLE0, | |
2145 | adapter->slow_intr_mask); | |
2146 | } | |
2147 | spin_unlock_irq(&adapter->work_lock); | |
2148 | } | |
2149 | ||
2150 | /* | |
2151 | * Interrupt-context handler for external (PHY) interrupts. | |
2152 | */ | |
2153 | void t3_os_ext_intr_handler(struct adapter *adapter) | |
2154 | { | |
2155 | /* | |
2156 | * Schedule a task to handle external interrupts as they may be slow | |
2157 | * and we use a mutex to protect MDIO registers. We disable PHY | |
2158 | * interrupts in the meantime and let the task reenable them when | |
2159 | * it's done. | |
2160 | */ | |
2161 | spin_lock(&adapter->work_lock); | |
2162 | if (adapter->slow_intr_mask) { | |
2163 | adapter->slow_intr_mask &= ~F_T3DBG; | |
2164 | t3_write_reg(adapter, A_PL_INT_ENABLE0, | |
2165 | adapter->slow_intr_mask); | |
2166 | queue_work(cxgb3_wq, &adapter->ext_intr_handler_task); | |
2167 | } | |
2168 | spin_unlock(&adapter->work_lock); | |
2169 | } | |
2170 | ||
2171 | void t3_fatal_err(struct adapter *adapter) | |
2172 | { | |
2173 | unsigned int fw_status[4]; | |
2174 | ||
2175 | if (adapter->flags & FULL_INIT_DONE) { | |
2176 | t3_sge_stop(adapter); | |
2177 | t3_intr_disable(adapter); | |
2178 | } | |
2179 | CH_ALERT(adapter, "encountered fatal error, operation suspended\n"); | |
2180 | if (!t3_cim_ctl_blk_read(adapter, 0xa0, 4, fw_status)) | |
2181 | CH_ALERT(adapter, "FW status: 0x%x, 0x%x, 0x%x, 0x%x\n", | |
2182 | fw_status[0], fw_status[1], | |
2183 | fw_status[2], fw_status[3]); | |
2184 | ||
2185 | } | |
2186 | ||
2187 | static int __devinit cxgb_enable_msix(struct adapter *adap) | |
2188 | { | |
2189 | struct msix_entry entries[SGE_QSETS + 1]; | |
2190 | int i, err; | |
2191 | ||
2192 | for (i = 0; i < ARRAY_SIZE(entries); ++i) | |
2193 | entries[i].entry = i; | |
2194 | ||
2195 | err = pci_enable_msix(adap->pdev, entries, ARRAY_SIZE(entries)); | |
2196 | if (!err) { | |
2197 | for (i = 0; i < ARRAY_SIZE(entries); ++i) | |
2198 | adap->msix_info[i].vec = entries[i].vector; | |
2199 | } else if (err > 0) | |
2200 | dev_info(&adap->pdev->dev, | |
2201 | "only %d MSI-X vectors left, not using MSI-X\n", err); | |
2202 | return err; | |
2203 | } | |
2204 | ||
2205 | static void __devinit print_port_info(struct adapter *adap, | |
2206 | const struct adapter_info *ai) | |
2207 | { | |
2208 | static const char *pci_variant[] = { | |
2209 | "PCI", "PCI-X", "PCI-X ECC", "PCI-X 266", "PCI Express" | |
2210 | }; | |
2211 | ||
2212 | int i; | |
2213 | char buf[80]; | |
2214 | ||
2215 | if (is_pcie(adap)) | |
2216 | snprintf(buf, sizeof(buf), "%s x%d", | |
2217 | pci_variant[adap->params.pci.variant], | |
2218 | adap->params.pci.width); | |
2219 | else | |
2220 | snprintf(buf, sizeof(buf), "%s %dMHz/%d-bit", | |
2221 | pci_variant[adap->params.pci.variant], | |
2222 | adap->params.pci.speed, adap->params.pci.width); | |
2223 | ||
2224 | for_each_port(adap, i) { | |
2225 | struct net_device *dev = adap->port[i]; | |
2226 | const struct port_info *pi = netdev_priv(dev); | |
2227 | ||
2228 | if (!test_bit(i, &adap->registered_device_map)) | |
2229 | continue; | |
2230 | printk(KERN_INFO "%s: %s %s RNIC (rev %d) %s%s\n", | |
2231 | dev->name, ai->desc, pi->port_type->desc, | |
2232 | adap->params.rev, buf, | |
2233 | (adap->flags & USING_MSIX) ? " MSI-X" : | |
2234 | (adap->flags & USING_MSI) ? " MSI" : ""); | |
2235 | if (adap->name == dev->name && adap->params.vpd.mclk) | |
2236 | printk(KERN_INFO "%s: %uMB CM, %uMB PMTX, %uMB PMRX\n", | |
2237 | adap->name, t3_mc7_size(&adap->cm) >> 20, | |
2238 | t3_mc7_size(&adap->pmtx) >> 20, | |
2239 | t3_mc7_size(&adap->pmrx) >> 20); | |
2240 | } | |
2241 | } | |
2242 | ||
2243 | static int __devinit init_one(struct pci_dev *pdev, | |
2244 | const struct pci_device_id *ent) | |
2245 | { | |
2246 | static int version_printed; | |
2247 | ||
2248 | int i, err, pci_using_dac = 0; | |
2249 | unsigned long mmio_start, mmio_len; | |
2250 | const struct adapter_info *ai; | |
2251 | struct adapter *adapter = NULL; | |
2252 | struct port_info *pi; | |
2253 | ||
2254 | if (!version_printed) { | |
2255 | printk(KERN_INFO "%s - version %s\n", DRV_DESC, DRV_VERSION); | |
2256 | ++version_printed; | |
2257 | } | |
2258 | ||
2259 | if (!cxgb3_wq) { | |
2260 | cxgb3_wq = create_singlethread_workqueue(DRV_NAME); | |
2261 | if (!cxgb3_wq) { | |
2262 | printk(KERN_ERR DRV_NAME | |
2263 | ": cannot initialize work queue\n"); | |
2264 | return -ENOMEM; | |
2265 | } | |
2266 | } | |
2267 | ||
2268 | err = pci_request_regions(pdev, DRV_NAME); | |
2269 | if (err) { | |
2270 | /* Just info, some other driver may have claimed the device. */ | |
2271 | dev_info(&pdev->dev, "cannot obtain PCI resources\n"); | |
2272 | return err; | |
2273 | } | |
2274 | ||
2275 | err = pci_enable_device(pdev); | |
2276 | if (err) { | |
2277 | dev_err(&pdev->dev, "cannot enable PCI device\n"); | |
2278 | goto out_release_regions; | |
2279 | } | |
2280 | ||
2281 | if (!pci_set_dma_mask(pdev, DMA_64BIT_MASK)) { | |
2282 | pci_using_dac = 1; | |
2283 | err = pci_set_consistent_dma_mask(pdev, DMA_64BIT_MASK); | |
2284 | if (err) { | |
2285 | dev_err(&pdev->dev, "unable to obtain 64-bit DMA for " | |
2286 | "coherent allocations\n"); | |
2287 | goto out_disable_device; | |
2288 | } | |
2289 | } else if ((err = pci_set_dma_mask(pdev, DMA_32BIT_MASK)) != 0) { | |
2290 | dev_err(&pdev->dev, "no usable DMA configuration\n"); | |
2291 | goto out_disable_device; | |
2292 | } | |
2293 | ||
2294 | pci_set_master(pdev); | |
2295 | ||
2296 | mmio_start = pci_resource_start(pdev, 0); | |
2297 | mmio_len = pci_resource_len(pdev, 0); | |
2298 | ai = t3_get_adapter_info(ent->driver_data); | |
2299 | ||
2300 | adapter = kzalloc(sizeof(*adapter), GFP_KERNEL); | |
2301 | if (!adapter) { | |
2302 | err = -ENOMEM; | |
2303 | goto out_disable_device; | |
2304 | } | |
2305 | ||
2306 | adapter->regs = ioremap_nocache(mmio_start, mmio_len); | |
2307 | if (!adapter->regs) { | |
2308 | dev_err(&pdev->dev, "cannot map device registers\n"); | |
2309 | err = -ENOMEM; | |
2310 | goto out_free_adapter; | |
2311 | } | |
2312 | ||
2313 | adapter->pdev = pdev; | |
2314 | adapter->name = pci_name(pdev); | |
2315 | adapter->msg_enable = dflt_msg_enable; | |
2316 | adapter->mmio_len = mmio_len; | |
2317 | ||
2318 | mutex_init(&adapter->mdio_lock); | |
2319 | spin_lock_init(&adapter->work_lock); | |
2320 | spin_lock_init(&adapter->stats_lock); | |
2321 | ||
2322 | INIT_LIST_HEAD(&adapter->adapter_list); | |
2323 | INIT_WORK(&adapter->ext_intr_handler_task, ext_intr_task); | |
2324 | INIT_DELAYED_WORK(&adapter->adap_check_task, t3_adap_check_task); | |
2325 | ||
2326 | for (i = 0; i < ai->nports; ++i) { | |
2327 | struct net_device *netdev; | |
2328 | ||
2329 | netdev = alloc_etherdev(sizeof(struct port_info)); | |
2330 | if (!netdev) { | |
2331 | err = -ENOMEM; | |
2332 | goto out_free_dev; | |
2333 | } | |
2334 | ||
2335 | SET_MODULE_OWNER(netdev); | |
2336 | SET_NETDEV_DEV(netdev, &pdev->dev); | |
2337 | ||
2338 | adapter->port[i] = netdev; | |
2339 | pi = netdev_priv(netdev); | |
2340 | pi->rx_csum_offload = 1; | |
2341 | pi->nqsets = 1; | |
2342 | pi->first_qset = i; | |
2343 | pi->activity = 0; | |
2344 | pi->port_id = i; | |
2345 | netif_carrier_off(netdev); | |
2346 | netdev->irq = pdev->irq; | |
2347 | netdev->mem_start = mmio_start; | |
2348 | netdev->mem_end = mmio_start + mmio_len - 1; | |
2349 | netdev->priv = adapter; | |
2350 | netdev->features |= NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO; | |
2351 | netdev->features |= NETIF_F_LLTX; | |
2352 | if (pci_using_dac) | |
2353 | netdev->features |= NETIF_F_HIGHDMA; | |
2354 | ||
2355 | netdev->features |= NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX; | |
2356 | netdev->vlan_rx_register = vlan_rx_register; | |
2357 | netdev->vlan_rx_kill_vid = vlan_rx_kill_vid; | |
2358 | ||
2359 | netdev->open = cxgb_open; | |
2360 | netdev->stop = cxgb_close; | |
2361 | netdev->hard_start_xmit = t3_eth_xmit; | |
2362 | netdev->get_stats = cxgb_get_stats; | |
2363 | netdev->set_multicast_list = cxgb_set_rxmode; | |
2364 | netdev->do_ioctl = cxgb_ioctl; | |
2365 | netdev->change_mtu = cxgb_change_mtu; | |
2366 | netdev->set_mac_address = cxgb_set_mac_addr; | |
2367 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
2368 | netdev->poll_controller = cxgb_netpoll; | |
2369 | #endif | |
2370 | netdev->weight = 64; | |
2371 | ||
2372 | SET_ETHTOOL_OPS(netdev, &cxgb_ethtool_ops); | |
2373 | } | |
2374 | ||
2375 | pci_set_drvdata(pdev, adapter->port[0]); | |
2376 | if (t3_prep_adapter(adapter, ai, 1) < 0) { | |
2377 | err = -ENODEV; | |
2378 | goto out_free_dev; | |
2379 | } | |
2380 | ||
2381 | /* | |
2382 | * The card is now ready to go. If any errors occur during device | |
2383 | * registration we do not fail the whole card but rather proceed only | |
2384 | * with the ports we manage to register successfully. However we must | |
2385 | * register at least one net device. | |
2386 | */ | |
2387 | for_each_port(adapter, i) { | |
2388 | err = register_netdev(adapter->port[i]); | |
2389 | if (err) | |
2390 | dev_warn(&pdev->dev, | |
2391 | "cannot register net device %s, skipping\n", | |
2392 | adapter->port[i]->name); | |
2393 | else { | |
2394 | /* | |
2395 | * Change the name we use for messages to the name of | |
2396 | * the first successfully registered interface. | |
2397 | */ | |
2398 | if (!adapter->registered_device_map) | |
2399 | adapter->name = adapter->port[i]->name; | |
2400 | ||
2401 | __set_bit(i, &adapter->registered_device_map); | |
2402 | } | |
2403 | } | |
2404 | if (!adapter->registered_device_map) { | |
2405 | dev_err(&pdev->dev, "could not register any net devices\n"); | |
2406 | goto out_free_dev; | |
2407 | } | |
2408 | ||
2409 | /* Driver's ready. Reflect it on LEDs */ | |
2410 | t3_led_ready(adapter); | |
2411 | ||
2412 | if (is_offload(adapter)) { | |
2413 | __set_bit(OFFLOAD_DEVMAP_BIT, &adapter->registered_device_map); | |
2414 | cxgb3_adapter_ofld(adapter); | |
2415 | } | |
2416 | ||
2417 | /* See what interrupts we'll be using */ | |
2418 | if (msi > 1 && cxgb_enable_msix(adapter) == 0) | |
2419 | adapter->flags |= USING_MSIX; | |
2420 | else if (msi > 0 && pci_enable_msi(pdev) == 0) | |
2421 | adapter->flags |= USING_MSI; | |
2422 | ||
2423 | err = sysfs_create_group(&adapter->port[0]->class_dev.kobj, | |
2424 | &cxgb3_attr_group); | |
2425 | ||
2426 | print_port_info(adapter, ai); | |
2427 | return 0; | |
2428 | ||
2429 | out_free_dev: | |
2430 | iounmap(adapter->regs); | |
2431 | for (i = ai->nports - 1; i >= 0; --i) | |
2432 | if (adapter->port[i]) | |
2433 | free_netdev(adapter->port[i]); | |
2434 | ||
2435 | out_free_adapter: | |
2436 | kfree(adapter); | |
2437 | ||
2438 | out_disable_device: | |
2439 | pci_disable_device(pdev); | |
2440 | out_release_regions: | |
2441 | pci_release_regions(pdev); | |
2442 | pci_set_drvdata(pdev, NULL); | |
2443 | return err; | |
2444 | } | |
2445 | ||
2446 | static void __devexit remove_one(struct pci_dev *pdev) | |
2447 | { | |
2448 | struct net_device *dev = pci_get_drvdata(pdev); | |
2449 | ||
2450 | if (dev) { | |
2451 | int i; | |
2452 | struct adapter *adapter = dev->priv; | |
2453 | ||
2454 | t3_sge_stop(adapter); | |
2455 | sysfs_remove_group(&adapter->port[0]->class_dev.kobj, | |
2456 | &cxgb3_attr_group); | |
2457 | ||
2458 | for_each_port(adapter, i) | |
2459 | if (test_bit(i, &adapter->registered_device_map)) | |
2460 | unregister_netdev(adapter->port[i]); | |
2461 | ||
2462 | if (is_offload(adapter)) { | |
2463 | cxgb3_adapter_unofld(adapter); | |
2464 | if (test_bit(OFFLOAD_DEVMAP_BIT, | |
2465 | &adapter->open_device_map)) | |
2466 | offload_close(&adapter->tdev); | |
2467 | } | |
2468 | ||
2469 | t3_free_sge_resources(adapter); | |
2470 | cxgb_disable_msi(adapter); | |
2471 | ||
2472 | for (i = 0; i < ARRAY_SIZE(adapter->dummy_netdev); i++) | |
2473 | if (adapter->dummy_netdev[i]) { | |
2474 | free_netdev(adapter->dummy_netdev[i]); | |
2475 | adapter->dummy_netdev[i] = NULL; | |
2476 | } | |
2477 | ||
2478 | for_each_port(adapter, i) | |
2479 | if (adapter->port[i]) | |
2480 | free_netdev(adapter->port[i]); | |
2481 | ||
2482 | iounmap(adapter->regs); | |
2483 | kfree(adapter); | |
2484 | pci_release_regions(pdev); | |
2485 | pci_disable_device(pdev); | |
2486 | pci_set_drvdata(pdev, NULL); | |
2487 | } | |
2488 | } | |
2489 | ||
2490 | static struct pci_driver driver = { | |
2491 | .name = DRV_NAME, | |
2492 | .id_table = cxgb3_pci_tbl, | |
2493 | .probe = init_one, | |
2494 | .remove = __devexit_p(remove_one), | |
2495 | }; | |
2496 | ||
2497 | static int __init cxgb3_init_module(void) | |
2498 | { | |
2499 | int ret; | |
2500 | ||
2501 | cxgb3_offload_init(); | |
2502 | ||
2503 | ret = pci_register_driver(&driver); | |
2504 | return ret; | |
2505 | } | |
2506 | ||
2507 | static void __exit cxgb3_cleanup_module(void) | |
2508 | { | |
2509 | pci_unregister_driver(&driver); | |
2510 | if (cxgb3_wq) | |
2511 | destroy_workqueue(cxgb3_wq); | |
2512 | } | |
2513 | ||
2514 | module_init(cxgb3_init_module); | |
2515 | module_exit(cxgb3_cleanup_module); |