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ethtool: Call ethtool's get/set_settings callbacks with cleaned data
[linux-2.6-block.git] / drivers / net / cxgb3 / cxgb3_main.c
CommitLineData
4d22de3e 1/*
a02d44a0 2 * Copyright (c) 2003-2008 Chelsio, Inc. All rights reserved.
4d22de3e 3 *
1d68e93d
DLR		 4 * This software is available to you under a choice of one of two
5 * licenses. You may choose to be licensed under the terms of the GNU
6 * General Public License (GPL) Version 2, available from the file
7 * COPYING in the main directory of this source tree, or the
8 * OpenIB.org BSD license below:
4d22de3e 9 *
1d68e93d
DLR		 10 * Redistribution and use in source and binary forms, with or
11 * without modification, are permitted provided that the following
12 * conditions are met:
13 *
14 * - Redistributions of source code must retain the above
15 * copyright notice, this list of conditions and the following
16 * disclaimer.
17 *
18 * - Redistributions in binary form must reproduce the above
19 * copyright notice, this list of conditions and the following
20 * disclaimer in the documentation and/or other materials
21 * provided with the distribution.
22 *
23 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
24 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
25 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
26 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
27 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
28 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
29 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
30 * SOFTWARE.
4d22de3e 31 */
4d22de3e
DLR		 32#include <linux/module.h>
33#include <linux/moduleparam.h>
34#include <linux/init.h>
35#include <linux/pci.h>
36#include <linux/dma-mapping.h>
37#include <linux/netdevice.h>
38#include <linux/etherdevice.h>
39#include <linux/if_vlan.h>
0f07c4ee 40#include <linux/mdio.h>
4d22de3e
DLR		 41#include <linux/sockios.h>
42#include <linux/workqueue.h>
43#include <linux/proc_fs.h>
44#include <linux/rtnetlink.h>
2e283962 45#include <linux/firmware.h>
d9da466a 46#include <linux/log2.h>
34336ec0 47#include <linux/stringify.h>
e998f245 48#include <linux/sched.h>
5a0e3ad6 49#include <linux/slab.h>
4d22de3e
DLR		 50#include <asm/uaccess.h>
51
52#include "common.h"
53#include "cxgb3_ioctl.h"
54#include "regs.h"
55#include "cxgb3_offload.h"
56#include "version.h"
57
58#include "cxgb3_ctl_defs.h"
59#include "t3_cpl.h"
60#include "firmware_exports.h"
61
62enum {
63 MAX_TXQ_ENTRIES = 16384,
64 MAX_CTRL_TXQ_ENTRIES = 1024,
65 MAX_RSPQ_ENTRIES = 16384,
66 MAX_RX_BUFFERS = 16384,
67 MAX_RX_JUMBO_BUFFERS = 16384,
68 MIN_TXQ_ENTRIES = 4,
69 MIN_CTRL_TXQ_ENTRIES = 4,
70 MIN_RSPQ_ENTRIES = 32,
71 MIN_FL_ENTRIES = 32
72};
73
74#define PORT_MASK ((1 << MAX_NPORTS) - 1)
75
76#define DFLT_MSG_ENABLE (NETIF_MSG_DRV | NETIF_MSG_PROBE | NETIF_MSG_LINK | \
77 NETIF_MSG_TIMER | NETIF_MSG_IFDOWN | NETIF_MSG_IFUP |\
78 NETIF_MSG_RX_ERR | NETIF_MSG_TX_ERR)
79
80#define EEPROM_MAGIC 0x38E2F10C
81
678771d6
DLR		 82#define CH_DEVICE(devid, idx) \
83 { PCI_VENDOR_ID_CHELSIO, devid, PCI_ANY_ID, PCI_ANY_ID, 0, 0, idx }
4d22de3e 84
a3aa1884 85static DEFINE_PCI_DEVICE_TABLE(cxgb3_pci_tbl) = {
678771d6
DLR		 86 CH_DEVICE(0x20, 0), /* PE9000 */
87 CH_DEVICE(0x21, 1), /* T302E */
88 CH_DEVICE(0x22, 2), /* T310E */
89 CH_DEVICE(0x23, 3), /* T320X */
90 CH_DEVICE(0x24, 1), /* T302X */
91 CH_DEVICE(0x25, 3), /* T320E */
92 CH_DEVICE(0x26, 2), /* T310X */
93 CH_DEVICE(0x30, 2), /* T3B10 */
94 CH_DEVICE(0x31, 3), /* T3B20 */
95 CH_DEVICE(0x32, 1), /* T3B02 */
ce03aadd 96 CH_DEVICE(0x35, 6), /* T3C20-derived T3C10 */
74451424
DLR		 97 CH_DEVICE(0x36, 3), /* S320E-CR */
98 CH_DEVICE(0x37, 7), /* N320E-G2 */
4d22de3e
DLR		 99 {0,}
100};
101
102MODULE_DESCRIPTION(DRV_DESC);
103MODULE_AUTHOR("Chelsio Communications");
1d68e93d 104MODULE_LICENSE("Dual BSD/GPL");
4d22de3e
DLR		 105MODULE_VERSION(DRV_VERSION);
106MODULE_DEVICE_TABLE(pci, cxgb3_pci_tbl);
107
108static int dflt_msg_enable = DFLT_MSG_ENABLE;
109
110module_param(dflt_msg_enable, int, 0644);
111MODULE_PARM_DESC(dflt_msg_enable, "Chelsio T3 default message enable bitmap");
112
113/*
114 * The driver uses the best interrupt scheme available on a platform in the
115 * order MSI-X, MSI, legacy pin interrupts. This parameter determines which
116 * of these schemes the driver may consider as follows:
117 *
118 * msi = 2: choose from among all three options
119 * msi = 1: only consider MSI and pin interrupts
120 * msi = 0: force pin interrupts
121 */
122static int msi = 2;
123
124module_param(msi, int, 0644);
125MODULE_PARM_DESC(msi, "whether to use MSI or MSI-X");
126
127/*
128 * The driver enables offload as a default.
129 * To disable it, use ofld_disable = 1.
130 */
131
132static int ofld_disable = 0;
133
134module_param(ofld_disable, int, 0644);
135MODULE_PARM_DESC(ofld_disable, "whether to enable offload at init time or not");
136
137/*
138 * We have work elements that we need to cancel when an interface is taken
139 * down. Normally the work elements would be executed by keventd but that
140 * can deadlock because of linkwatch. If our close method takes the rtnl
141 * lock and linkwatch is ahead of our work elements in keventd, linkwatch
142 * will block keventd as it needs the rtnl lock, and we'll deadlock waiting
143 * for our work to complete. Get our own work queue to solve this.
144 */
e998f245 145struct workqueue_struct *cxgb3_wq;
4d22de3e
DLR		 146
147/**
148 * link_report - show link status and link speed/duplex
149 * @p: the port whose settings are to be reported
150 *
151 * Shows the link status, speed, and duplex of a port.
152 */
153static void link_report(struct net_device *dev)
154{
155 if (!netif_carrier_ok(dev))
156 printk(KERN_INFO "%s: link down\n", dev->name);
157 else {
158 const char *s = "10Mbps";
159 const struct port_info *p = netdev_priv(dev);
160
161 switch (p->link_config.speed) {
162 case SPEED_10000:
163 s = "10Gbps";
164 break;
165 case SPEED_1000:
166 s = "1000Mbps";
167 break;
168 case SPEED_100:
169 s = "100Mbps";
170 break;
171 }
172
173 printk(KERN_INFO "%s: link up, %s, %s-duplex\n", dev->name, s,
174 p->link_config.duplex == DUPLEX_FULL ? "full" : "half");
175 }
176}
177
34701fde
DLR		 178static void enable_tx_fifo_drain(struct adapter *adapter,
179 struct port_info *pi)
180{
181 t3_set_reg_field(adapter, A_XGM_TXFIFO_CFG + pi->mac.offset, 0,
182 F_ENDROPPKT);
183 t3_write_reg(adapter, A_XGM_RX_CTRL + pi->mac.offset, 0);
184 t3_write_reg(adapter, A_XGM_TX_CTRL + pi->mac.offset, F_TXEN);
185 t3_write_reg(adapter, A_XGM_RX_CTRL + pi->mac.offset, F_RXEN);
186}
187
188static void disable_tx_fifo_drain(struct adapter *adapter,
189 struct port_info *pi)
190{
191 t3_set_reg_field(adapter, A_XGM_TXFIFO_CFG + pi->mac.offset,
192 F_ENDROPPKT, 0);
193}
194
bf792094
DLR		 195void t3_os_link_fault(struct adapter *adap, int port_id, int state)
196{
197 struct net_device *dev = adap->port[port_id];
198 struct port_info *pi = netdev_priv(dev);
199
200 if (state == netif_carrier_ok(dev))
201 return;
202
203 if (state) {
204 struct cmac *mac = &pi->mac;
205
206 netif_carrier_on(dev);
207
34701fde
DLR		 208 disable_tx_fifo_drain(adap, pi);
209
bf792094
DLR		 210 /* Clear local faults */
211 t3_xgm_intr_disable(adap, pi->port_id);
212 t3_read_reg(adap, A_XGM_INT_STATUS +
213 pi->mac.offset);
214 t3_write_reg(adap,
215 A_XGM_INT_CAUSE + pi->mac.offset,
216 F_XGM_INT);
217
218 t3_set_reg_field(adap,
219 A_XGM_INT_ENABLE +
220 pi->mac.offset,
221 F_XGM_INT, F_XGM_INT);
222 t3_xgm_intr_enable(adap, pi->port_id);
223
224 t3_mac_enable(mac, MAC_DIRECTION_TX);
34701fde 225 } else {
bf792094
DLR		 226 netif_carrier_off(dev);
227
34701fde
DLR		 228 /* Flush TX FIFO */
229 enable_tx_fifo_drain(adap, pi);
230 }
bf792094
DLR		 231 link_report(dev);
232}
233
4d22de3e
DLR		 234/**
235 * t3_os_link_changed - handle link status changes
236 * @adapter: the adapter associated with the link change
237 * @port_id: the port index whose limk status has changed
238 * @link_stat: the new status of the link
239 * @speed: the new speed setting
240 * @duplex: the new duplex setting
241 * @pause: the new flow-control setting
242 *
243 * This is the OS-dependent handler for link status changes. The OS
244 * neutral handler takes care of most of the processing for these events,
245 * then calls this handler for any OS-specific processing.
246 */
247void t3_os_link_changed(struct adapter *adapter, int port_id, int link_stat,
248 int speed, int duplex, int pause)
249{
250 struct net_device *dev = adapter->port[port_id];
6d6dabac
DLR		 251 struct port_info *pi = netdev_priv(dev);
252 struct cmac *mac = &pi->mac;
4d22de3e
DLR		 253
254 /* Skip changes from disabled ports. */
255 if (!netif_running(dev))
256 return;
257
258 if (link_stat != netif_carrier_ok(dev)) {
6d6dabac 259 if (link_stat) {
34701fde
DLR		 260 disable_tx_fifo_drain(adapter, pi);
261
59cf8107 262 t3_mac_enable(mac, MAC_DIRECTION_RX);
bf792094
DLR		 263
264 /* Clear local faults */
265 t3_xgm_intr_disable(adapter, pi->port_id);
266 t3_read_reg(adapter, A_XGM_INT_STATUS +
267 pi->mac.offset);
268 t3_write_reg(adapter,
269 A_XGM_INT_CAUSE + pi->mac.offset,
270 F_XGM_INT);
271
272 t3_set_reg_field(adapter,
273 A_XGM_INT_ENABLE + pi->mac.offset,
274 F_XGM_INT, F_XGM_INT);
275 t3_xgm_intr_enable(adapter, pi->port_id);
276
4d22de3e 277 netif_carrier_on(dev);
6d6dabac 278 } else {
4d22de3e 279 netif_carrier_off(dev);
bf792094
DLR		 280
281 t3_xgm_intr_disable(adapter, pi->port_id);
282 t3_read_reg(adapter, A_XGM_INT_STATUS + pi->mac.offset);
283 t3_set_reg_field(adapter,
284 A_XGM_INT_ENABLE + pi->mac.offset,
285 F_XGM_INT, 0);
286
287 if (is_10G(adapter))
288 pi->phy.ops->power_down(&pi->phy, 1);
289
290 t3_read_reg(adapter, A_XGM_INT_STATUS + pi->mac.offset);
59cf8107
DLR		 291 t3_mac_disable(mac, MAC_DIRECTION_RX);
292 t3_link_start(&pi->phy, mac, &pi->link_config);
34701fde
DLR		 293
294 /* Flush TX FIFO */
295 enable_tx_fifo_drain(adapter, pi);
6d6dabac
DLR		 296 }
297
4d22de3e
DLR		 298 link_report(dev);
299 }
300}
301
1e882025
DLR		 302/**
303 * t3_os_phymod_changed - handle PHY module changes
304 * @phy: the PHY reporting the module change
305 * @mod_type: new module type
306 *
307 * This is the OS-dependent handler for PHY module changes. It is
308 * invoked when a PHY module is removed or inserted for any OS-specific
309 * processing.
310 */
311void t3_os_phymod_changed(struct adapter *adap, int port_id)
312{
313 static const char *mod_str[] = {
314 NULL, "SR", "LR", "LRM", "TWINAX", "TWINAX", "unknown"
315 };
316
317 const struct net_device *dev = adap->port[port_id];
318 const struct port_info *pi = netdev_priv(dev);
319
320 if (pi->phy.modtype == phy_modtype_none)
321 printk(KERN_INFO "%s: PHY module unplugged\n", dev->name);
322 else
323 printk(KERN_INFO "%s: %s PHY module inserted\n", dev->name,
324 mod_str[pi->phy.modtype]);
325}
326
4d22de3e
DLR		 327static void cxgb_set_rxmode(struct net_device *dev)
328{
4d22de3e
DLR		 329 struct port_info *pi = netdev_priv(dev);
330
0988d269 331 t3_mac_set_rx_mode(&pi->mac, dev);
4d22de3e
DLR		 332}
333
334/**
335 * link_start - enable a port
336 * @dev: the device to enable
337 *
338 * Performs the MAC and PHY actions needed to enable a port.
339 */
340static void link_start(struct net_device *dev)
341{
4d22de3e
DLR		 342 struct port_info *pi = netdev_priv(dev);
343 struct cmac *mac = &pi->mac;
344
4d22de3e 345 t3_mac_reset(mac);
f14d42f3 346 t3_mac_set_num_ucast(mac, MAX_MAC_IDX);
4d22de3e 347 t3_mac_set_mtu(mac, dev->mtu);
f14d42f3
KX		 348 t3_mac_set_address(mac, LAN_MAC_IDX, dev->dev_addr);
349 t3_mac_set_address(mac, SAN_MAC_IDX, pi->iscsic.mac_addr);
0988d269 350 t3_mac_set_rx_mode(mac, dev);
4d22de3e
DLR		 351 t3_link_start(&pi->phy, mac, &pi->link_config);
352 t3_mac_enable(mac, MAC_DIRECTION_RX | MAC_DIRECTION_TX);
353}
354
355static inline void cxgb_disable_msi(struct adapter *adapter)
356{
357 if (adapter->flags & USING_MSIX) {
358 pci_disable_msix(adapter->pdev);
359 adapter->flags &= ~USING_MSIX;
360 } else if (adapter->flags & USING_MSI) {
361 pci_disable_msi(adapter->pdev);
362 adapter->flags &= ~USING_MSI;
363 }
364}
365
366/*
367 * Interrupt handler for asynchronous events used with MSI-X.
368 */
369static irqreturn_t t3_async_intr_handler(int irq, void *cookie)
370{
371 t3_slow_intr_handler(cookie);
372 return IRQ_HANDLED;
373}
374
375/*
376 * Name the MSI-X interrupts.
377 */
378static void name_msix_vecs(struct adapter *adap)
379{
380 int i, j, msi_idx = 1, n = sizeof(adap->msix_info[0].desc) - 1;
381
382 snprintf(adap->msix_info[0].desc, n, "%s", adap->name);
383 adap->msix_info[0].desc[n] = 0;
384
385 for_each_port(adap, j) {
386 struct net_device *d = adap->port[j];
387 const struct port_info *pi = netdev_priv(d);
388
389 for (i = 0; i < pi->nqsets; i++, msi_idx++) {
390 snprintf(adap->msix_info[msi_idx].desc, n,
8c263761 391 "%s-%d", d->name, pi->first_qset + i);
4d22de3e
DLR		 392 adap->msix_info[msi_idx].desc[n] = 0;
393 }
8c263761 394 }
4d22de3e
DLR		 395}
396
397static int request_msix_data_irqs(struct adapter *adap)
398{
399 int i, j, err, qidx = 0;
400
401 for_each_port(adap, i) {
402 int nqsets = adap2pinfo(adap, i)->nqsets;
403
404 for (j = 0; j < nqsets; ++j) {
405 err = request_irq(adap->msix_info[qidx + 1].vec,
406 t3_intr_handler(adap,
407 adap->sge.qs[qidx].
408 rspq.polling), 0,
409 adap->msix_info[qidx + 1].desc,
410 &adap->sge.qs[qidx]);
411 if (err) {
412 while (--qidx >= 0)
413 free_irq(adap->msix_info[qidx + 1].vec,
414 &adap->sge.qs[qidx]);
415 return err;
416 }
417 qidx++;
418 }
419 }
420 return 0;
421}
422
8c263761
DLR		 423static void free_irq_resources(struct adapter *adapter)
424{
425 if (adapter->flags & USING_MSIX) {
426 int i, n = 0;
427
428 free_irq(adapter->msix_info[0].vec, adapter);
429 for_each_port(adapter, i)
5cda9364 430 n += adap2pinfo(adapter, i)->nqsets;
8c263761
DLR		 431
432 for (i = 0; i < n; ++i)
433 free_irq(adapter->msix_info[i + 1].vec,
434 &adapter->sge.qs[i]);
435 } else
436 free_irq(adapter->pdev->irq, adapter);
437}
438
b881955b
DLR		 439static int await_mgmt_replies(struct adapter *adap, unsigned long init_cnt,
440 unsigned long n)
441{
e95ef5d3 442 int attempts = 10;
b881955b
DLR		 443
444 while (adap->sge.qs[0].rspq.offload_pkts < init_cnt + n) {
445 if (!--attempts)
446 return -ETIMEDOUT;
447 msleep(10);
448 }
449 return 0;
450}
451
452static int init_tp_parity(struct adapter *adap)
453{
454 int i;
455 struct sk_buff *skb;
456 struct cpl_set_tcb_field *greq;
457 unsigned long cnt = adap->sge.qs[0].rspq.offload_pkts;
458
459 t3_tp_set_offload_mode(adap, 1);
460
461 for (i = 0; i < 16; i++) {
462 struct cpl_smt_write_req *req;
463
74b793e1
DLR		 464 skb = alloc_skb(sizeof(*req), GFP_KERNEL);
465 if (!skb)
466 skb = adap->nofail_skb;
467 if (!skb)
468 goto alloc_skb_fail;
469
b881955b
DLR		 470 req = (struct cpl_smt_write_req *)__skb_put(skb, sizeof(*req));
471 memset(req, 0, sizeof(*req));
472 req->wr.wr_hi = htonl(V_WR_OP(FW_WROPCODE_FORWARD));
473 OPCODE_TID(req) = htonl(MK_OPCODE_TID(CPL_SMT_WRITE_REQ, i));
dce7d1d0 474 req->mtu_idx = NMTUS - 1;
b881955b
DLR		 475 req->iff = i;
476 t3_mgmt_tx(adap, skb);
74b793e1
DLR		 477 if (skb == adap->nofail_skb) {
478 await_mgmt_replies(adap, cnt, i + 1);
479 adap->nofail_skb = alloc_skb(sizeof(*greq), GFP_KERNEL);
480 if (!adap->nofail_skb)
481 goto alloc_skb_fail;
482 }
b881955b
DLR		 483 }
484
485 for (i = 0; i < 2048; i++) {
486 struct cpl_l2t_write_req *req;
487
74b793e1
DLR		 488 skb = alloc_skb(sizeof(*req), GFP_KERNEL);
489 if (!skb)
490 skb = adap->nofail_skb;
491 if (!skb)
492 goto alloc_skb_fail;
493
b881955b
DLR		 494 req = (struct cpl_l2t_write_req *)__skb_put(skb, sizeof(*req));
495 memset(req, 0, sizeof(*req));
496 req->wr.wr_hi = htonl(V_WR_OP(FW_WROPCODE_FORWARD));
497 OPCODE_TID(req) = htonl(MK_OPCODE_TID(CPL_L2T_WRITE_REQ, i));
498 req->params = htonl(V_L2T_W_IDX(i));
499 t3_mgmt_tx(adap, skb);
74b793e1
DLR		 500 if (skb == adap->nofail_skb) {
501 await_mgmt_replies(adap, cnt, 16 + i + 1);
502 adap->nofail_skb = alloc_skb(sizeof(*greq), GFP_KERNEL);
503 if (!adap->nofail_skb)
504 goto alloc_skb_fail;
505 }
b881955b
DLR		 506 }
507
508 for (i = 0; i < 2048; i++) {
509 struct cpl_rte_write_req *req;
510
74b793e1
DLR		 511 skb = alloc_skb(sizeof(*req), GFP_KERNEL);
512 if (!skb)
513 skb = adap->nofail_skb;
514 if (!skb)
515 goto alloc_skb_fail;
516
b881955b
DLR		 517 req = (struct cpl_rte_write_req *)__skb_put(skb, sizeof(*req));
518 memset(req, 0, sizeof(*req));
519 req->wr.wr_hi = htonl(V_WR_OP(FW_WROPCODE_FORWARD));
520 OPCODE_TID(req) = htonl(MK_OPCODE_TID(CPL_RTE_WRITE_REQ, i));
521 req->l2t_idx = htonl(V_L2T_W_IDX(i));
522 t3_mgmt_tx(adap, skb);
74b793e1
DLR		 523 if (skb == adap->nofail_skb) {
524 await_mgmt_replies(adap, cnt, 16 + 2048 + i + 1);
525 adap->nofail_skb = alloc_skb(sizeof(*greq), GFP_KERNEL);
526 if (!adap->nofail_skb)
527 goto alloc_skb_fail;
528 }
b881955b
DLR		 529 }
530
74b793e1
DLR		 531 skb = alloc_skb(sizeof(*greq), GFP_KERNEL);
532 if (!skb)
533 skb = adap->nofail_skb;
534 if (!skb)
535 goto alloc_skb_fail;
536
b881955b
DLR		 537 greq = (struct cpl_set_tcb_field *)__skb_put(skb, sizeof(*greq));
538 memset(greq, 0, sizeof(*greq));
539 greq->wr.wr_hi = htonl(V_WR_OP(FW_WROPCODE_FORWARD));
540 OPCODE_TID(greq) = htonl(MK_OPCODE_TID(CPL_SET_TCB_FIELD, 0));
541 greq->mask = cpu_to_be64(1);
542 t3_mgmt_tx(adap, skb);
543
544 i = await_mgmt_replies(adap, cnt, 16 + 2048 + 2048 + 1);
74b793e1
DLR		 545 if (skb == adap->nofail_skb) {
546 i = await_mgmt_replies(adap, cnt, 16 + 2048 + 2048 + 1);
547 adap->nofail_skb = alloc_skb(sizeof(*greq), GFP_KERNEL);
548 }
549
b881955b
DLR		 550 t3_tp_set_offload_mode(adap, 0);
551 return i;
74b793e1
DLR		 552
553alloc_skb_fail:
554 t3_tp_set_offload_mode(adap, 0);
555 return -ENOMEM;
b881955b
DLR		 556}
557
4d22de3e
DLR		 558/**
559 * setup_rss - configure RSS
560 * @adap: the adapter
561 *
562 * Sets up RSS to distribute packets to multiple receive queues. We
563 * configure the RSS CPU lookup table to distribute to the number of HW
564 * receive queues, and the response queue lookup table to narrow that
565 * down to the response queues actually configured for each port.
566 * We always configure the RSS mapping for two ports since the mapping
567 * table has plenty of entries.
568 */
569static void setup_rss(struct adapter *adap)
570{
571 int i;
572 unsigned int nq0 = adap2pinfo(adap, 0)->nqsets;
573 unsigned int nq1 = adap->port[1] ? adap2pinfo(adap, 1)->nqsets : 1;
574 u8 cpus[SGE_QSETS + 1];
575 u16 rspq_map[RSS_TABLE_SIZE];
576
577 for (i = 0; i < SGE_QSETS; ++i)
578 cpus[i] = i;
579 cpus[SGE_QSETS] = 0xff; /* terminator */
580
581 for (i = 0; i < RSS_TABLE_SIZE / 2; ++i) {
582 rspq_map[i] = i % nq0;
583 rspq_map[i + RSS_TABLE_SIZE / 2] = (i % nq1) + nq0;
584 }
585
586 t3_config_rss(adap, F_RQFEEDBACKENABLE | F_TNLLKPEN | F_TNLMAPEN |
587 F_TNLPRTEN | F_TNL2TUPEN | F_TNL4TUPEN |
a2604be5 588 V_RRCPLCPUSIZE(6) | F_HASHTOEPLITZ, cpus, rspq_map);
4d22de3e
DLR		 589}
590
e998f245
SW		 591static void ring_dbs(struct adapter *adap)
592{
593 int i, j;
594
595 for (i = 0; i < SGE_QSETS; i++) {
596 struct sge_qset *qs = &adap->sge.qs[i];
597
598 if (qs->adap)
599 for (j = 0; j < SGE_TXQ_PER_SET; j++)
600 t3_write_reg(adap, A_SG_KDOORBELL, F_SELEGRCNTX | V_EGRCNTX(qs->txq[j].cntxt_id));
601 }
602}
603
bea3348e 604static void init_napi(struct adapter *adap)
4d22de3e 605{
bea3348e 606 int i;
4d22de3e 607
bea3348e
SH		 608 for (i = 0; i < SGE_QSETS; i++) {
609 struct sge_qset *qs = &adap->sge.qs[i];
4d22de3e 610
bea3348e
SH		 611 if (qs->adap)
612 netif_napi_add(qs->netdev, &qs->napi, qs->napi.poll,
613 64);
4d22de3e 614 }
48c4b6db
DLR		 615
616 /*
617 * netif_napi_add() can be called only once per napi_struct because it
618 * adds each new napi_struct to a list. Be careful not to call it a
619 * second time, e.g., during EEH recovery, by making a note of it.
620 */
621 adap->flags |= NAPI_INIT;
4d22de3e
DLR		 622}
623
624/*
625 * Wait until all NAPI handlers are descheduled. This includes the handlers of
626 * both netdevices representing interfaces and the dummy ones for the extra
627 * queues.
628 */
629static void quiesce_rx(struct adapter *adap)
630{
631 int i;
4d22de3e 632
bea3348e
SH		 633 for (i = 0; i < SGE_QSETS; i++)
634 if (adap->sge.qs[i].adap)
635 napi_disable(&adap->sge.qs[i].napi);
636}
4d22de3e 637
bea3348e
SH		 638static void enable_all_napi(struct adapter *adap)
639{
640 int i;
641 for (i = 0; i < SGE_QSETS; i++)
642 if (adap->sge.qs[i].adap)
643 napi_enable(&adap->sge.qs[i].napi);
4d22de3e
DLR		 644}
645
646/**
647 * setup_sge_qsets - configure SGE Tx/Rx/response queues
648 * @adap: the adapter
649 *
650 * Determines how many sets of SGE queues to use and initializes them.
651 * We support multiple queue sets per port if we have MSI-X, otherwise
652 * just one queue set per port.
653 */
654static int setup_sge_qsets(struct adapter *adap)
655{
bea3348e 656 int i, j, err, irq_idx = 0, qset_idx = 0;
8ac3ba68 657 unsigned int ntxq = SGE_TXQ_PER_SET;
4d22de3e
DLR		 658
659 if (adap->params.rev > 0 && !(adap->flags & USING_MSI))
660 irq_idx = -1;
661
662 for_each_port(adap, i) {
663 struct net_device *dev = adap->port[i];
bea3348e 664 struct port_info *pi = netdev_priv(dev);
4d22de3e 665
bea3348e 666 pi->qs = &adap->sge.qs[pi->first_qset];
e594e96e 667 for (j = 0; j < pi->nqsets; ++j, ++qset_idx) {
4d22de3e
DLR		 668 err = t3_sge_alloc_qset(adap, qset_idx, 1,
669 (adap->flags & USING_MSIX) ? qset_idx + 1 :
670 irq_idx,
82ad3329
DLR		 671 &adap->params.sge.qset[qset_idx], ntxq, dev,
672 netdev_get_tx_queue(dev, j));
4d22de3e
DLR		 673 if (err) {
674 t3_free_sge_resources(adap);
675 return err;
676 }
677 }
678 }
679
680 return 0;
681}
682
3e5192ee 683static ssize_t attr_show(struct device *d, char *buf,
896392ef 684 ssize_t(*format) (struct net_device *, char *))
4d22de3e
DLR		 685{
686 ssize_t len;
4d22de3e
DLR		 687
688 /* Synchronize with ioctls that may shut down the device */
689 rtnl_lock();
896392ef 690 len = (*format) (to_net_dev(d), buf);
4d22de3e
DLR		 691 rtnl_unlock();
692 return len;
693}
694
3e5192ee 695static ssize_t attr_store(struct device *d,
0ee8d33c 696 const char *buf, size_t len,
896392ef 697 ssize_t(*set) (struct net_device *, unsigned int),
4d22de3e
DLR		 698 unsigned int min_val, unsigned int max_val)
699{
700 char *endp;
701 ssize_t ret;
702 unsigned int val;
4d22de3e
DLR		 703
704 if (!capable(CAP_NET_ADMIN))
705 return -EPERM;
706
707 val = simple_strtoul(buf, &endp, 0);
708 if (endp == buf || val < min_val || val > max_val)
709 return -EINVAL;
710
711 rtnl_lock();
896392ef 712 ret = (*set) (to_net_dev(d), val);
4d22de3e
DLR		 713 if (!ret)
714 ret = len;
715 rtnl_unlock();
716 return ret;
717}
718
719#define CXGB3_SHOW(name, val_expr) \
896392ef 720static ssize_t format_##name(struct net_device *dev, char *buf) \
4d22de3e 721{ \
5fbf816f
DLR		 722 struct port_info *pi = netdev_priv(dev); \
723 struct adapter *adap = pi->adapter; \
4d22de3e
DLR		 724 return sprintf(buf, "%u\n", val_expr); \
725} \
0ee8d33c
DLR		 726static ssize_t show_##name(struct device *d, struct device_attribute *attr, \
727 char *buf) \
4d22de3e 728{ \
3e5192ee 729 return attr_show(d, buf, format_##name); \
4d22de3e
DLR		 730}
731
896392ef 732static ssize_t set_nfilters(struct net_device *dev, unsigned int val)
4d22de3e 733{
5fbf816f
DLR		 734 struct port_info *pi = netdev_priv(dev);
735 struct adapter *adap = pi->adapter;
9f238486 736 int min_tids = is_offload(adap) ? MC5_MIN_TIDS : 0;
896392ef 737
4d22de3e
DLR		 738 if (adap->flags & FULL_INIT_DONE)
739 return -EBUSY;
740 if (val && adap->params.rev == 0)
741 return -EINVAL;
9f238486
DLR		 742 if (val > t3_mc5_size(&adap->mc5) - adap->params.mc5.nservers -
743 min_tids)
4d22de3e
DLR		 744 return -EINVAL;
745 adap->params.mc5.nfilters = val;
746 return 0;
747}
748
0ee8d33c
DLR		 749static ssize_t store_nfilters(struct device *d, struct device_attribute *attr,
750 const char *buf, size_t len)
4d22de3e 751{
3e5192ee 752 return attr_store(d, buf, len, set_nfilters, 0, ~0);
4d22de3e
DLR		 753}
754
896392ef 755static ssize_t set_nservers(struct net_device *dev, unsigned int val)
4d22de3e 756{
5fbf816f
DLR		 757 struct port_info *pi = netdev_priv(dev);
758 struct adapter *adap = pi->adapter;
896392ef 759
4d22de3e
DLR		 760 if (adap->flags & FULL_INIT_DONE)
761 return -EBUSY;
9f238486
DLR		 762 if (val > t3_mc5_size(&adap->mc5) - adap->params.mc5.nfilters -
763 MC5_MIN_TIDS)
4d22de3e
DLR		 764 return -EINVAL;
765 adap->params.mc5.nservers = val;
766 return 0;
767}
768
0ee8d33c
DLR		 769static ssize_t store_nservers(struct device *d, struct device_attribute *attr,
770 const char *buf, size_t len)
4d22de3e 771{
3e5192ee 772 return attr_store(d, buf, len, set_nservers, 0, ~0);
4d22de3e
DLR		 773}
774
775#define CXGB3_ATTR_R(name, val_expr) \
776CXGB3_SHOW(name, val_expr) \
0ee8d33c 777static DEVICE_ATTR(name, S_IRUGO, show_##name, NULL)
4d22de3e
DLR		 778
779#define CXGB3_ATTR_RW(name, val_expr, store_method) \
780CXGB3_SHOW(name, val_expr) \
0ee8d33c 781static DEVICE_ATTR(name, S_IRUGO | S_IWUSR, show_##name, store_method)
4d22de3e
DLR		 782
783CXGB3_ATTR_R(cam_size, t3_mc5_size(&adap->mc5));
784CXGB3_ATTR_RW(nfilters, adap->params.mc5.nfilters, store_nfilters);
785CXGB3_ATTR_RW(nservers, adap->params.mc5.nservers, store_nservers);
786
787static struct attribute *cxgb3_attrs[] = {
0ee8d33c
DLR		 788 &dev_attr_cam_size.attr,
789 &dev_attr_nfilters.attr,
790 &dev_attr_nservers.attr,
4d22de3e
DLR		 791 NULL
792};
793
794static struct attribute_group cxgb3_attr_group = {.attrs = cxgb3_attrs };
795
3e5192ee 796static ssize_t tm_attr_show(struct device *d,
0ee8d33c 797 char *buf, int sched)
4d22de3e 798{
5fbf816f
DLR		 799 struct port_info *pi = netdev_priv(to_net_dev(d));
800 struct adapter *adap = pi->adapter;
4d22de3e 801 unsigned int v, addr, bpt, cpt;
5fbf816f 802 ssize_t len;
4d22de3e
DLR		 803
804 addr = A_TP_TX_MOD_Q1_Q0_RATE_LIMIT - sched / 2;
805 rtnl_lock();
806 t3_write_reg(adap, A_TP_TM_PIO_ADDR, addr);
807 v = t3_read_reg(adap, A_TP_TM_PIO_DATA);
808 if (sched & 1)
809 v >>= 16;
810 bpt = (v >> 8) & 0xff;
811 cpt = v & 0xff;
812 if (!cpt)
813 len = sprintf(buf, "disabled\n");
814 else {
815 v = (adap->params.vpd.cclk * 1000) / cpt;
816 len = sprintf(buf, "%u Kbps\n", (v * bpt) / 125);
817 }
818 rtnl_unlock();
819 return len;
820}
821
3e5192ee 822static ssize_t tm_attr_store(struct device *d,
0ee8d33c 823 const char *buf, size_t len, int sched)
4d22de3e 824{
5fbf816f
DLR		 825 struct port_info *pi = netdev_priv(to_net_dev(d));
826 struct adapter *adap = pi->adapter;
827 unsigned int val;
4d22de3e
DLR		 828 char *endp;
829 ssize_t ret;
4d22de3e
DLR		 830
831 if (!capable(CAP_NET_ADMIN))
832 return -EPERM;
833
834 val = simple_strtoul(buf, &endp, 0);
835 if (endp == buf || val > 10000000)
836 return -EINVAL;
837
838 rtnl_lock();
839 ret = t3_config_sched(adap, val, sched);
840 if (!ret)
841 ret = len;
842 rtnl_unlock();
843 return ret;
844}
845
846#define TM_ATTR(name, sched) \
0ee8d33c
DLR		 847static ssize_t show_##name(struct device *d, struct device_attribute *attr, \
848 char *buf) \
4d22de3e 849{ \
3e5192ee 850 return tm_attr_show(d, buf, sched); \
4d22de3e 851} \
0ee8d33c
DLR		 852static ssize_t store_##name(struct device *d, struct device_attribute *attr, \
853 const char *buf, size_t len) \
4d22de3e 854{ \
3e5192ee 855 return tm_attr_store(d, buf, len, sched); \
4d22de3e 856} \
0ee8d33c 857static DEVICE_ATTR(name, S_IRUGO | S_IWUSR, show_##name, store_##name)
4d22de3e
DLR		 858
859TM_ATTR(sched0, 0);
860TM_ATTR(sched1, 1);
861TM_ATTR(sched2, 2);
862TM_ATTR(sched3, 3);
863TM_ATTR(sched4, 4);
864TM_ATTR(sched5, 5);
865TM_ATTR(sched6, 6);
866TM_ATTR(sched7, 7);
867
868static struct attribute *offload_attrs[] = {
0ee8d33c
DLR		 869 &dev_attr_sched0.attr,
870 &dev_attr_sched1.attr,
871 &dev_attr_sched2.attr,
872 &dev_attr_sched3.attr,
873 &dev_attr_sched4.attr,
874 &dev_attr_sched5.attr,
875 &dev_attr_sched6.attr,
876 &dev_attr_sched7.attr,
4d22de3e
DLR		 877 NULL
878};
879
880static struct attribute_group offload_attr_group = {.attrs = offload_attrs };
881
882/*
883 * Sends an sk_buff to an offload queue driver
884 * after dealing with any active network taps.
885 */
886static inline int offload_tx(struct t3cdev *tdev, struct sk_buff *skb)
887{
888 int ret;
889
890 local_bh_disable();
891 ret = t3_offload_tx(tdev, skb);
892 local_bh_enable();
893 return ret;
894}
895
896static int write_smt_entry(struct adapter *adapter, int idx)
897{
898 struct cpl_smt_write_req *req;
f14d42f3 899 struct port_info *pi = netdev_priv(adapter->port[idx]);
4d22de3e
DLR		 900 struct sk_buff *skb = alloc_skb(sizeof(*req), GFP_KERNEL);
901
902 if (!skb)
903 return -ENOMEM;
904
905 req = (struct cpl_smt_write_req *)__skb_put(skb, sizeof(*req));
906 req->wr.wr_hi = htonl(V_WR_OP(FW_WROPCODE_FORWARD));
907 OPCODE_TID(req) = htonl(MK_OPCODE_TID(CPL_SMT_WRITE_REQ, idx));
908 req->mtu_idx = NMTUS - 1; /* should be 0 but there's a T3 bug */
909 req->iff = idx;
4d22de3e 910 memcpy(req->src_mac0, adapter->port[idx]->dev_addr, ETH_ALEN);
f14d42f3 911 memcpy(req->src_mac1, pi->iscsic.mac_addr, ETH_ALEN);
4d22de3e
DLR		 912 skb->priority = 1;
913 offload_tx(&adapter->tdev, skb);
914 return 0;
915}
916
917static int init_smt(struct adapter *adapter)
918{
919 int i;
920
921 for_each_port(adapter, i)
922 write_smt_entry(adapter, i);
923 return 0;
924}
925
926static void init_port_mtus(struct adapter *adapter)
927{
928 unsigned int mtus = adapter->port[0]->mtu;
929
930 if (adapter->port[1])
931 mtus |= adapter->port[1]->mtu << 16;
932 t3_write_reg(adapter, A_TP_MTU_PORT_TABLE, mtus);
933}
934
8c263761 935static int send_pktsched_cmd(struct adapter *adap, int sched, int qidx, int lo,
14ab9892
DLR		 936 int hi, int port)
937{
938 struct sk_buff *skb;
939 struct mngt_pktsched_wr *req;
8c263761 940 int ret;
14ab9892 941
74b793e1
DLR		 942 skb = alloc_skb(sizeof(*req), GFP_KERNEL);
943 if (!skb)
944 skb = adap->nofail_skb;
945 if (!skb)
946 return -ENOMEM;
947
14ab9892
DLR		 948 req = (struct mngt_pktsched_wr *)skb_put(skb, sizeof(*req));
949 req->wr_hi = htonl(V_WR_OP(FW_WROPCODE_MNGT));
950 req->mngt_opcode = FW_MNGTOPCODE_PKTSCHED_SET;
951 req->sched = sched;
952 req->idx = qidx;
953 req->min = lo;
954 req->max = hi;
955 req->binding = port;
8c263761 956 ret = t3_mgmt_tx(adap, skb);
74b793e1
DLR		 957 if (skb == adap->nofail_skb) {
958 adap->nofail_skb = alloc_skb(sizeof(struct cpl_set_tcb_field),
959 GFP_KERNEL);
960 if (!adap->nofail_skb)
961 ret = -ENOMEM;
962 }
8c263761
DLR		 963
964 return ret;
14ab9892
DLR		 965}
966
8c263761 967static int bind_qsets(struct adapter *adap)
14ab9892 968{
8c263761 969 int i, j, err = 0;
14ab9892
DLR		 970
971 for_each_port(adap, i) {
972 const struct port_info *pi = adap2pinfo(adap, i);
973
8c263761
DLR		 974 for (j = 0; j < pi->nqsets; ++j) {
975 int ret = send_pktsched_cmd(adap, 1,
976 pi->first_qset + j, -1,
977 -1, i);
978 if (ret)
979 err = ret;
980 }
14ab9892 981 }
8c263761
DLR		 982
983 return err;
14ab9892
DLR		 984}
985
34336ec0
BH		 986#define FW_VERSION __stringify(FW_VERSION_MAJOR) "." \
987 __stringify(FW_VERSION_MINOR) "." __stringify(FW_VERSION_MICRO)
988#define FW_FNAME "cxgb3/t3fw-" FW_VERSION ".bin"
989#define TPSRAM_VERSION __stringify(TP_VERSION_MAJOR) "." \
990 __stringify(TP_VERSION_MINOR) "." __stringify(TP_VERSION_MICRO)
991#define TPSRAM_NAME "cxgb3/t3%c_psram-" TPSRAM_VERSION ".bin"
2e8c07c3
DLR		 992#define AEL2005_OPT_EDC_NAME "cxgb3/ael2005_opt_edc.bin"
993#define AEL2005_TWX_EDC_NAME "cxgb3/ael2005_twx_edc.bin"
9450526a 994#define AEL2020_TWX_EDC_NAME "cxgb3/ael2020_twx_edc.bin"
34336ec0
BH		 995MODULE_FIRMWARE(FW_FNAME);
996MODULE_FIRMWARE("cxgb3/t3b_psram-" TPSRAM_VERSION ".bin");
997MODULE_FIRMWARE("cxgb3/t3c_psram-" TPSRAM_VERSION ".bin");
998MODULE_FIRMWARE(AEL2005_OPT_EDC_NAME);
999MODULE_FIRMWARE(AEL2005_TWX_EDC_NAME);
1000MODULE_FIRMWARE(AEL2020_TWX_EDC_NAME);
2e8c07c3
DLR		 1001
1002static inline const char *get_edc_fw_name(int edc_idx)
1003{
1004 const char *fw_name = NULL;
1005
1006 switch (edc_idx) {
1007 case EDC_OPT_AEL2005:
1008 fw_name = AEL2005_OPT_EDC_NAME;
1009 break;
1010 case EDC_TWX_AEL2005:
1011 fw_name = AEL2005_TWX_EDC_NAME;
1012 break;
1013 case EDC_TWX_AEL2020:
1014 fw_name = AEL2020_TWX_EDC_NAME;
1015 break;
1016 }
1017 return fw_name;
1018}
1019
1020int t3_get_edc_fw(struct cphy *phy, int edc_idx, int size)
1021{
1022 struct adapter *adapter = phy->adapter;
1023 const struct firmware *fw;
1024 char buf[64];
1025 u32 csum;
1026 const __be32 *p;
1027 u16 *cache = phy->phy_cache;
1028 int i, ret;
1029
1030 snprintf(buf, sizeof(buf), get_edc_fw_name(edc_idx));
1031
1032 ret = request_firmware(&fw, buf, &adapter->pdev->dev);
1033 if (ret < 0) {
1034 dev_err(&adapter->pdev->dev,
1035 "could not upgrade firmware: unable to load %s\n",
1036 buf);
1037 return ret;
1038 }
1039
1040 /* check size, take checksum in account */
1041 if (fw->size > size + 4) {
1042 CH_ERR(adapter, "firmware image too large %u, expected %d\n",
1043 (unsigned int)fw->size, size + 4);
1044 ret = -EINVAL;
1045 }
1046
1047 /* compute checksum */
1048 p = (const __be32 *)fw->data;
1049 for (csum = 0, i = 0; i < fw->size / sizeof(csum); i++)
1050 csum += ntohl(p[i]);
1051
1052 if (csum != 0xffffffff) {
1053 CH_ERR(adapter, "corrupted firmware image, checksum %u\n",
1054 csum);
1055 ret = -EINVAL;
1056 }
1057
1058 for (i = 0; i < size / 4 ; i++) {
1059 *cache++ = (be32_to_cpu(p[i]) & 0xffff0000) >> 16;
1060 *cache++ = be32_to_cpu(p[i]) & 0xffff;
1061 }
1062
1063 release_firmware(fw);
1064
1065 return ret;
1066}
2e283962
DLR		 1067
1068static int upgrade_fw(struct adapter *adap)
1069{
1070 int ret;
2e283962
DLR		 1071 const struct firmware *fw;
1072 struct device *dev = &adap->pdev->dev;
1073
34336ec0 1074 ret = request_firmware(&fw, FW_FNAME, dev);
2e283962
DLR		 1075 if (ret < 0) {
1076 dev_err(dev, "could not upgrade firmware: unable to load %s\n",
34336ec0 1077 FW_FNAME);
2e283962
DLR		 1078 return ret;
1079 }
1080 ret = t3_load_fw(adap, fw->data, fw->size);
1081 release_firmware(fw);
47330077
DLR		 1082
1083 if (ret == 0)
1084 dev_info(dev, "successful upgrade to firmware %d.%d.%d\n",
1085 FW_VERSION_MAJOR, FW_VERSION_MINOR, FW_VERSION_MICRO);
1086 else
1087 dev_err(dev, "failed to upgrade to firmware %d.%d.%d\n",
1088 FW_VERSION_MAJOR, FW_VERSION_MINOR, FW_VERSION_MICRO);
2eab17ab 1089
47330077
DLR		 1090 return ret;
1091}
1092
1093static inline char t3rev2char(struct adapter *adapter)
1094{
1095 char rev = 0;
1096
1097 switch(adapter->params.rev) {
1098 case T3_REV_B:
1099 case T3_REV_B2:
1100 rev = 'b';
1101 break;
1aafee26
DLR		 1102 case T3_REV_C:
1103 rev = 'c';
1104 break;
47330077
DLR		 1105 }
1106 return rev;
1107}
1108
9265fabf 1109static int update_tpsram(struct adapter *adap)
47330077
DLR		 1110{
1111 const struct firmware *tpsram;
1112 char buf[64];
1113 struct device *dev = &adap->pdev->dev;
1114 int ret;
1115 char rev;
2eab17ab 1116
47330077
DLR		 1117 rev = t3rev2char(adap);
1118 if (!rev)
1119 return 0;
1120
34336ec0 1121 snprintf(buf, sizeof(buf), TPSRAM_NAME, rev);
47330077
DLR		 1122
1123 ret = request_firmware(&tpsram, buf, dev);
1124 if (ret < 0) {
1125 dev_err(dev, "could not load TP SRAM: unable to load %s\n",
1126 buf);
1127 return ret;
1128 }
2eab17ab 1129
47330077
DLR		 1130 ret = t3_check_tpsram(adap, tpsram->data, tpsram->size);
1131 if (ret)
2eab17ab 1132 goto release_tpsram;
47330077
DLR		 1133
1134 ret = t3_set_proto_sram(adap, tpsram->data);
1135 if (ret == 0)
1136 dev_info(dev,
1137 "successful update of protocol engine "
1138 "to %d.%d.%d\n",
1139 TP_VERSION_MAJOR, TP_VERSION_MINOR, TP_VERSION_MICRO);
1140 else
1141 dev_err(dev, "failed to update of protocol engine %d.%d.%d\n",
1142 TP_VERSION_MAJOR, TP_VERSION_MINOR, TP_VERSION_MICRO);
1143 if (ret)
1144 dev_err(dev, "loading protocol SRAM failed\n");
1145
1146release_tpsram:
1147 release_firmware(tpsram);
2eab17ab 1148
2e283962
DLR		 1149 return ret;
1150}
1151
4d22de3e
DLR		 1152/**
1153 * cxgb_up - enable the adapter
1154 * @adapter: adapter being enabled
1155 *
1156 * Called when the first port is enabled, this function performs the
1157 * actions necessary to make an adapter operational, such as completing
1158 * the initialization of HW modules, and enabling interrupts.
1159 *
1160 * Must be called with the rtnl lock held.
1161 */
1162static int cxgb_up(struct adapter *adap)
1163{
c54f5c24 1164 int err;
4d22de3e
DLR		 1165
1166 if (!(adap->flags & FULL_INIT_DONE)) {
8207befa 1167 err = t3_check_fw_version(adap);
a5a3b460 1168 if (err == -EINVAL) {
2e283962 1169 err = upgrade_fw(adap);
8207befa
DLR		 1170 CH_WARN(adap, "FW upgrade to %d.%d.%d %s\n",
1171 FW_VERSION_MAJOR, FW_VERSION_MINOR,
1172 FW_VERSION_MICRO, err ? "failed" : "succeeded");
a5a3b460 1173 }
4d22de3e 1174
8207befa 1175 err = t3_check_tpsram_version(adap);
47330077
DLR		 1176 if (err == -EINVAL) {
1177 err = update_tpsram(adap);
8207befa
DLR		 1178 CH_WARN(adap, "TP upgrade to %d.%d.%d %s\n",
1179 TP_VERSION_MAJOR, TP_VERSION_MINOR,
1180 TP_VERSION_MICRO, err ? "failed" : "succeeded");
47330077
DLR		 1181 }
1182
20d3fc11
DLR		 1183 /*
1184 * Clear interrupts now to catch errors if t3_init_hw fails.
1185 * We clear them again later as initialization may trigger
1186 * conditions that can interrupt.
1187 */
1188 t3_intr_clear(adap);
1189
4d22de3e
DLR		 1190 err = t3_init_hw(adap, 0);
1191 if (err)
1192 goto out;
1193
b881955b 1194 t3_set_reg_field(adap, A_TP_PARA_REG5, 0, F_RXDDPOFFINIT);
6cdbd77e 1195 t3_write_reg(adap, A_ULPRX_TDDP_PSZ, V_HPZ0(PAGE_SHIFT - 12));
bea3348e 1196
4d22de3e
DLR		 1197 err = setup_sge_qsets(adap);
1198 if (err)
1199 goto out;
1200
1201 setup_rss(adap);
48c4b6db
DLR		 1202 if (!(adap->flags & NAPI_INIT))
1203 init_napi(adap);
31563789
DLR		 1204
1205 t3_start_sge_timers(adap);
4d22de3e
DLR		 1206 adap->flags |= FULL_INIT_DONE;
1207 }
1208
1209 t3_intr_clear(adap);
1210
1211 if (adap->flags & USING_MSIX) {
1212 name_msix_vecs(adap);
1213 err = request_irq(adap->msix_info[0].vec,
1214 t3_async_intr_handler, 0,
1215 adap->msix_info[0].desc, adap);
1216 if (err)
1217 goto irq_err;
1218
42256f57
DLR		 1219 err = request_msix_data_irqs(adap);
1220 if (err) {
4d22de3e
DLR		 1221 free_irq(adap->msix_info[0].vec, adap);
1222 goto irq_err;
1223 }
1224 } else if ((err = request_irq(adap->pdev->irq,
1225 t3_intr_handler(adap,
1226 adap->sge.qs[0].rspq.
1227 polling),
2db6346f
TG		 1228 (adap->flags & USING_MSI) ?
1229 0 : IRQF_SHARED,
4d22de3e
DLR		 1230 adap->name, adap)))
1231 goto irq_err;
1232
bea3348e 1233 enable_all_napi(adap);
4d22de3e
DLR		 1234 t3_sge_start(adap);
1235 t3_intr_enable(adap);
14ab9892 1236
b881955b
DLR		 1237 if (adap->params.rev >= T3_REV_C && !(adap->flags & TP_PARITY_INIT) &&
1238 is_offload(adap) && init_tp_parity(adap) == 0)
1239 adap->flags |= TP_PARITY_INIT;
1240
1241 if (adap->flags & TP_PARITY_INIT) {
1242 t3_write_reg(adap, A_TP_INT_CAUSE,
1243 F_CMCACHEPERR | F_ARPLUTPERR);
1244 t3_write_reg(adap, A_TP_INT_ENABLE, 0x7fbfffff);
1245 }
1246
8c263761 1247 if (!(adap->flags & QUEUES_BOUND)) {
18edc84c
DLR		 1248 int ret = bind_qsets(adap);
1249
1250 if (ret < 0) {
1251 CH_ERR(adap, "failed to bind qsets, err %d\n", ret);
8c263761
DLR		 1252 t3_intr_disable(adap);
1253 free_irq_resources(adap);
18edc84c 1254 err = ret;
8c263761
DLR		 1255 goto out;
1256 }
1257 adap->flags |= QUEUES_BOUND;
1258 }
14ab9892 1259
4d22de3e
DLR		 1260out:
1261 return err;
1262irq_err:
1263 CH_ERR(adap, "request_irq failed, err %d\n", err);
1264 goto out;
1265}
1266
1267/*
1268 * Release resources when all the ports and offloading have been stopped.
1269 */
55bc3228 1270static void cxgb_down(struct adapter *adapter, int on_wq)
4d22de3e
DLR		 1271{
1272 t3_sge_stop(adapter);
1273 spin_lock_irq(&adapter->work_lock); /* sync with PHY intr task */
1274 t3_intr_disable(adapter);
1275 spin_unlock_irq(&adapter->work_lock);
1276
8c263761 1277 free_irq_resources(adapter);
4d22de3e 1278 quiesce_rx(adapter);
a6f018e3 1279 t3_sge_stop(adapter);
55bc3228
CL		 1280 if (!on_wq)
1281 flush_workqueue(cxgb3_wq);/* wait for external IRQ handler */
4d22de3e
DLR		 1282}
1283
1284static void schedule_chk_task(struct adapter *adap)
1285{
1286 unsigned int timeo;
1287
1288 timeo = adap->params.linkpoll_period ?
1289 (HZ * adap->params.linkpoll_period) / 10 :
1290 adap->params.stats_update_period * HZ;
1291 if (timeo)
1292 queue_delayed_work(cxgb3_wq, &adap->adap_check_task, timeo);
1293}
1294
1295static int offload_open(struct net_device *dev)
1296{
5fbf816f
DLR		 1297 struct port_info *pi = netdev_priv(dev);
1298 struct adapter *adapter = pi->adapter;
1299 struct t3cdev *tdev = dev2t3cdev(dev);
4d22de3e 1300 int adap_up = adapter->open_device_map & PORT_MASK;
c54f5c24 1301 int err;
4d22de3e
DLR		 1302
1303 if (test_and_set_bit(OFFLOAD_DEVMAP_BIT, &adapter->open_device_map))
1304 return 0;
1305
1306 if (!adap_up && (err = cxgb_up(adapter)) < 0)
48c4b6db 1307 goto out;
4d22de3e
DLR		 1308
1309 t3_tp_set_offload_mode(adapter, 1);
1310 tdev->lldev = adapter->port[0];
1311 err = cxgb3_offload_activate(adapter);
1312 if (err)
1313 goto out;
1314
1315 init_port_mtus(adapter);
1316 t3_load_mtus(adapter, adapter->params.mtus, adapter->params.a_wnd,
1317 adapter->params.b_wnd,
1318 adapter->params.rev == 0 ?
1319 adapter->port[0]->mtu : 0xffff);
1320 init_smt(adapter);
1321
d96a51f6
DN		 1322 if (sysfs_create_group(&tdev->lldev->dev.kobj, &offload_attr_group))
1323 dev_dbg(&dev->dev, "cannot create sysfs group\n");
4d22de3e
DLR		 1324
1325 /* Call back all registered clients */
1326 cxgb3_add_clients(tdev);
1327
1328out:
1329 /* restore them in case the offload module has changed them */
1330 if (err) {
1331 t3_tp_set_offload_mode(adapter, 0);
1332 clear_bit(OFFLOAD_DEVMAP_BIT, &adapter->open_device_map);
1333 cxgb3_set_dummy_ops(tdev);
1334 }
1335 return err;
1336}
1337
1338static int offload_close(struct t3cdev *tdev)
1339{
1340 struct adapter *adapter = tdev2adap(tdev);
23f333a2 1341 struct t3c_data *td = T3C_DATA(tdev);
4d22de3e
DLR		 1342
1343 if (!test_bit(OFFLOAD_DEVMAP_BIT, &adapter->open_device_map))
1344 return 0;
1345
1346 /* Call back all registered clients */
1347 cxgb3_remove_clients(tdev);
1348
0ee8d33c 1349 sysfs_remove_group(&tdev->lldev->dev.kobj, &offload_attr_group);
4d22de3e 1350
c80b0c28 1351 /* Flush work scheduled while releasing TIDs */
23f333a2 1352 flush_work_sync(&td->tid_release_task);
c80b0c28 1353
4d22de3e
DLR		 1354 tdev->lldev = NULL;
1355 cxgb3_set_dummy_ops(tdev);
1356 t3_tp_set_offload_mode(adapter, 0);
1357 clear_bit(OFFLOAD_DEVMAP_BIT, &adapter->open_device_map);
1358
1359 if (!adapter->open_device_map)
55bc3228 1360 cxgb_down(adapter, 0);
4d22de3e
DLR		 1361
1362 cxgb3_offload_deactivate(adapter);
1363 return 0;
1364}
1365
1366static int cxgb_open(struct net_device *dev)
1367{
4d22de3e 1368 struct port_info *pi = netdev_priv(dev);
5fbf816f 1369 struct adapter *adapter = pi->adapter;
4d22de3e 1370 int other_ports = adapter->open_device_map & PORT_MASK;
5fbf816f 1371 int err;
4d22de3e 1372
48c4b6db 1373 if (!adapter->open_device_map && (err = cxgb_up(adapter)) < 0)
4d22de3e
DLR		 1374 return err;
1375
1376 set_bit(pi->port_id, &adapter->open_device_map);
8ac3ba68 1377 if (is_offload(adapter) && !ofld_disable) {
4d22de3e
DLR		 1378 err = offload_open(dev);
1379 if (err)
1380 printk(KERN_WARNING
1381 "Could not initialize offload capabilities\n");
1382 }
1383
19221e75
BH		 1384 netif_set_real_num_tx_queues(dev, pi->nqsets);
1385 err = netif_set_real_num_rx_queues(dev, pi->nqsets);
1386 if (err)
1387 return err;
4d22de3e
DLR		 1388 link_start(dev);
1389 t3_port_intr_enable(adapter, pi->port_id);
82ad3329 1390 netif_tx_start_all_queues(dev);
4d22de3e
DLR		 1391 if (!other_ports)
1392 schedule_chk_task(adapter);
1393
fa0d4c11 1394 cxgb3_event_notify(&adapter->tdev, OFFLOAD_PORT_UP, pi->port_id);
4d22de3e
DLR		 1395 return 0;
1396}
1397
55bc3228 1398static int __cxgb_close(struct net_device *dev, int on_wq)
4d22de3e 1399{
5fbf816f
DLR		 1400 struct port_info *pi = netdev_priv(dev);
1401 struct adapter *adapter = pi->adapter;
4d22de3e 1402
e8d19370
DLR		 1403
1404 if (!adapter->open_device_map)
1405 return 0;
1406
bf792094
DLR		 1407 /* Stop link fault interrupts */
1408 t3_xgm_intr_disable(adapter, pi->port_id);
1409 t3_read_reg(adapter, A_XGM_INT_STATUS + pi->mac.offset);
1410
5fbf816f 1411 t3_port_intr_disable(adapter, pi->port_id);
82ad3329 1412 netif_tx_stop_all_queues(dev);
5fbf816f 1413 pi->phy.ops->power_down(&pi->phy, 1);
4d22de3e 1414 netif_carrier_off(dev);
5fbf816f 1415 t3_mac_disable(&pi->mac, MAC_DIRECTION_TX | MAC_DIRECTION_RX);
4d22de3e 1416
20d3fc11 1417 spin_lock_irq(&adapter->work_lock); /* sync with update task */
5fbf816f 1418 clear_bit(pi->port_id, &adapter->open_device_map);
20d3fc11 1419 spin_unlock_irq(&adapter->work_lock);
4d22de3e
DLR		 1420
1421 if (!(adapter->open_device_map & PORT_MASK))
c80b0c28 1422 cancel_delayed_work_sync(&adapter->adap_check_task);
4d22de3e
DLR		 1423
1424 if (!adapter->open_device_map)
55bc3228 1425 cxgb_down(adapter, on_wq);
4d22de3e 1426
fa0d4c11 1427 cxgb3_event_notify(&adapter->tdev, OFFLOAD_PORT_DOWN, pi->port_id);
4d22de3e
DLR		 1428 return 0;
1429}
1430
55bc3228
CL		 1431static int cxgb_close(struct net_device *dev)
1432{
1433 return __cxgb_close(dev, 0);
1434}
1435
4d22de3e
DLR		 1436static struct net_device_stats *cxgb_get_stats(struct net_device *dev)
1437{
5fbf816f
DLR		 1438 struct port_info *pi = netdev_priv(dev);
1439 struct adapter *adapter = pi->adapter;
1440 struct net_device_stats *ns = &pi->netstats;
4d22de3e
DLR		 1441 const struct mac_stats *pstats;
1442
1443 spin_lock(&adapter->stats_lock);
5fbf816f 1444 pstats = t3_mac_update_stats(&pi->mac);
4d22de3e
DLR		 1445 spin_unlock(&adapter->stats_lock);
1446
1447 ns->tx_bytes = pstats->tx_octets;
1448 ns->tx_packets = pstats->tx_frames;
1449 ns->rx_bytes = pstats->rx_octets;
1450 ns->rx_packets = pstats->rx_frames;
1451 ns->multicast = pstats->rx_mcast_frames;
1452
1453 ns->tx_errors = pstats->tx_underrun;
1454 ns->rx_errors = pstats->rx_symbol_errs + pstats->rx_fcs_errs +
1455 pstats->rx_too_long + pstats->rx_jabber + pstats->rx_short +
1456 pstats->rx_fifo_ovfl;
1457
1458 /* detailed rx_errors */
1459 ns->rx_length_errors = pstats->rx_jabber + pstats->rx_too_long;
1460 ns->rx_over_errors = 0;
1461 ns->rx_crc_errors = pstats->rx_fcs_errs;
1462 ns->rx_frame_errors = pstats->rx_symbol_errs;
1463 ns->rx_fifo_errors = pstats->rx_fifo_ovfl;
1464 ns->rx_missed_errors = pstats->rx_cong_drops;
1465
1466 /* detailed tx_errors */
1467 ns->tx_aborted_errors = 0;
1468 ns->tx_carrier_errors = 0;
1469 ns->tx_fifo_errors = pstats->tx_underrun;
1470 ns->tx_heartbeat_errors = 0;
1471 ns->tx_window_errors = 0;
1472 return ns;
1473}
1474
1475static u32 get_msglevel(struct net_device *dev)
1476{
5fbf816f
DLR		 1477 struct port_info *pi = netdev_priv(dev);
1478 struct adapter *adapter = pi->adapter;
4d22de3e
DLR		 1479
1480 return adapter->msg_enable;
1481}
1482
1483static void set_msglevel(struct net_device *dev, u32 val)
1484{
5fbf816f
DLR		 1485 struct port_info *pi = netdev_priv(dev);
1486 struct adapter *adapter = pi->adapter;
4d22de3e
DLR		 1487
1488 adapter->msg_enable = val;
1489}
1490
1491static char stats_strings[][ETH_GSTRING_LEN] = {
1492 "TxOctetsOK ",
1493 "TxFramesOK ",
1494 "TxMulticastFramesOK",
1495 "TxBroadcastFramesOK",
1496 "TxPauseFrames ",
1497 "TxUnderrun ",
1498 "TxExtUnderrun ",
1499
1500 "TxFrames64 ",
1501 "TxFrames65To127 ",
1502 "TxFrames128To255 ",
1503 "TxFrames256To511 ",
1504 "TxFrames512To1023 ",
1505 "TxFrames1024To1518 ",
1506 "TxFrames1519ToMax ",
1507
1508 "RxOctetsOK ",
1509 "RxFramesOK ",
1510 "RxMulticastFramesOK",
1511 "RxBroadcastFramesOK",
1512 "RxPauseFrames ",
1513 "RxFCSErrors ",
1514 "RxSymbolErrors ",
1515 "RxShortErrors ",
1516 "RxJabberErrors ",
1517 "RxLengthErrors ",
1518 "RxFIFOoverflow ",
1519
1520 "RxFrames64 ",
1521 "RxFrames65To127 ",
1522 "RxFrames128To255 ",
1523 "RxFrames256To511 ",
1524 "RxFrames512To1023 ",
1525 "RxFrames1024To1518 ",
1526 "RxFrames1519ToMax ",
1527
1528 "PhyFIFOErrors ",
1529 "TSO ",
1530 "VLANextractions ",
1531 "VLANinsertions ",
1532 "TxCsumOffload ",
1533 "RxCsumGood ",
b47385bd
DLR		 1534 "LroAggregated ",
1535 "LroFlushed ",
1536 "LroNoDesc ",
fc90664e
DLR		 1537 "RxDrops ",
1538
1539 "CheckTXEnToggled ",
1540 "CheckResets ",
1541
bf792094 1542 "LinkFaults ",
4d22de3e
DLR		 1543};
1544
b9f2c044 1545static int get_sset_count(struct net_device *dev, int sset)
4d22de3e 1546{
b9f2c044
JG		 1547 switch (sset) {
1548 case ETH_SS_STATS:
1549 return ARRAY_SIZE(stats_strings);
1550 default:
1551 return -EOPNOTSUPP;
1552 }
4d22de3e
DLR		 1553}
1554
1555#define T3_REGMAP_SIZE (3 * 1024)
1556
1557static int get_regs_len(struct net_device *dev)
1558{
1559 return T3_REGMAP_SIZE;
1560}
1561
1562static int get_eeprom_len(struct net_device *dev)
1563{
1564 return EEPROMSIZE;
1565}
1566
1567static void get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
1568{
5fbf816f
DLR		 1569 struct port_info *pi = netdev_priv(dev);
1570 struct adapter *adapter = pi->adapter;
4d22de3e 1571 u32 fw_vers = 0;
47330077 1572 u32 tp_vers = 0;
4d22de3e 1573
cf3760da 1574 spin_lock(&adapter->stats_lock);
4d22de3e 1575 t3_get_fw_version(adapter, &fw_vers);
47330077 1576 t3_get_tp_version(adapter, &tp_vers);
cf3760da 1577 spin_unlock(&adapter->stats_lock);
4d22de3e
DLR		 1578
1579 strcpy(info->driver, DRV_NAME);
1580 strcpy(info->version, DRV_VERSION);
1581 strcpy(info->bus_info, pci_name(adapter->pdev));
1582 if (!fw_vers)
1583 strcpy(info->fw_version, "N/A");
4aac3899 1584 else {
4d22de3e 1585 snprintf(info->fw_version, sizeof(info->fw_version),
47330077 1586 "%s %u.%u.%u TP %u.%u.%u",
4aac3899
DLR		 1587 G_FW_VERSION_TYPE(fw_vers) ? "T" : "N",
1588 G_FW_VERSION_MAJOR(fw_vers),
1589 G_FW_VERSION_MINOR(fw_vers),
47330077
DLR		 1590 G_FW_VERSION_MICRO(fw_vers),
1591 G_TP_VERSION_MAJOR(tp_vers),
1592 G_TP_VERSION_MINOR(tp_vers),
1593 G_TP_VERSION_MICRO(tp_vers));
4aac3899 1594 }
4d22de3e
DLR		 1595}
1596
1597static void get_strings(struct net_device *dev, u32 stringset, u8 * data)
1598{
1599 if (stringset == ETH_SS_STATS)
1600 memcpy(data, stats_strings, sizeof(stats_strings));
1601}
1602
1603static unsigned long collect_sge_port_stats(struct adapter *adapter,
1604 struct port_info *p, int idx)
1605{
1606 int i;
1607 unsigned long tot = 0;
1608
8c263761
DLR		 1609 for (i = p->first_qset; i < p->first_qset + p->nqsets; ++i)
1610 tot += adapter->sge.qs[i].port_stats[idx];
4d22de3e
DLR		 1611 return tot;
1612}
1613
1614static void get_stats(struct net_device *dev, struct ethtool_stats *stats,
1615 u64 *data)
1616{
4d22de3e 1617 struct port_info *pi = netdev_priv(dev);
5fbf816f 1618 struct adapter *adapter = pi->adapter;
4d22de3e
DLR		 1619 const struct mac_stats *s;
1620
1621 spin_lock(&adapter->stats_lock);
1622 s = t3_mac_update_stats(&pi->mac);
1623 spin_unlock(&adapter->stats_lock);
1624
1625 *data++ = s->tx_octets;
1626 *data++ = s->tx_frames;
1627 *data++ = s->tx_mcast_frames;
1628 *data++ = s->tx_bcast_frames;
1629 *data++ = s->tx_pause;
1630 *data++ = s->tx_underrun;
1631 *data++ = s->tx_fifo_urun;
1632
1633 *data++ = s->tx_frames_64;
1634 *data++ = s->tx_frames_65_127;
1635 *data++ = s->tx_frames_128_255;
1636 *data++ = s->tx_frames_256_511;
1637 *data++ = s->tx_frames_512_1023;
1638 *data++ = s->tx_frames_1024_1518;
1639 *data++ = s->tx_frames_1519_max;
1640
1641 *data++ = s->rx_octets;
1642 *data++ = s->rx_frames;
1643 *data++ = s->rx_mcast_frames;
1644 *data++ = s->rx_bcast_frames;
1645 *data++ = s->rx_pause;
1646 *data++ = s->rx_fcs_errs;
1647 *data++ = s->rx_symbol_errs;
1648 *data++ = s->rx_short;
1649 *data++ = s->rx_jabber;
1650 *data++ = s->rx_too_long;
1651 *data++ = s->rx_fifo_ovfl;
1652
1653 *data++ = s->rx_frames_64;
1654 *data++ = s->rx_frames_65_127;
1655 *data++ = s->rx_frames_128_255;
1656 *data++ = s->rx_frames_256_511;
1657 *data++ = s->rx_frames_512_1023;
1658 *data++ = s->rx_frames_1024_1518;
1659 *data++ = s->rx_frames_1519_max;
1660
1661 *data++ = pi->phy.fifo_errors;
1662
1663 *data++ = collect_sge_port_stats(adapter, pi, SGE_PSTAT_TSO);
1664 *data++ = collect_sge_port_stats(adapter, pi, SGE_PSTAT_VLANEX);
1665 *data++ = collect_sge_port_stats(adapter, pi, SGE_PSTAT_VLANINS);
1666 *data++ = collect_sge_port_stats(adapter, pi, SGE_PSTAT_TX_CSUM);
1667 *data++ = collect_sge_port_stats(adapter, pi, SGE_PSTAT_RX_CSUM_GOOD);
7be2df45
HX		 1668 *data++ = 0;
1669 *data++ = 0;
1670 *data++ = 0;
4d22de3e 1671 *data++ = s->rx_cong_drops;
fc90664e
DLR		 1672
1673 *data++ = s->num_toggled;
1674 *data++ = s->num_resets;
bf792094
DLR		 1675
1676 *data++ = s->link_faults;
4d22de3e
DLR		 1677}
1678
1679static inline void reg_block_dump(struct adapter *ap, void *buf,
1680 unsigned int start, unsigned int end)
1681{
1682 u32 *p = buf + start;
1683
1684 for (; start <= end; start += sizeof(u32))
1685 *p++ = t3_read_reg(ap, start);
1686}
1687
1688static void get_regs(struct net_device *dev, struct ethtool_regs *regs,
1689 void *buf)
1690{
5fbf816f
DLR		 1691 struct port_info *pi = netdev_priv(dev);
1692 struct adapter *ap = pi->adapter;
4d22de3e
DLR		 1693
1694 /*
1695 * Version scheme:
1696 * bits 0..9: chip version
1697 * bits 10..15: chip revision
1698 * bit 31: set for PCIe cards
1699 */
1700 regs->version = 3 | (ap->params.rev << 10) | (is_pcie(ap) << 31);
1701
1702 /*
1703 * We skip the MAC statistics registers because they are clear-on-read.
1704 * Also reading multi-register stats would need to synchronize with the
1705 * periodic mac stats accumulation. Hard to justify the complexity.
1706 */
1707 memset(buf, 0, T3_REGMAP_SIZE);
1708 reg_block_dump(ap, buf, 0, A_SG_RSPQ_CREDIT_RETURN);
1709 reg_block_dump(ap, buf, A_SG_HI_DRB_HI_THRSH, A_ULPRX_PBL_ULIMIT);
1710 reg_block_dump(ap, buf, A_ULPTX_CONFIG, A_MPS_INT_CAUSE);
1711 reg_block_dump(ap, buf, A_CPL_SWITCH_CNTRL, A_CPL_MAP_TBL_DATA);
1712 reg_block_dump(ap, buf, A_SMB_GLOBAL_TIME_CFG, A_XGM_SERDES_STAT3);
1713 reg_block_dump(ap, buf, A_XGM_SERDES_STATUS0,
1714 XGM_REG(A_XGM_SERDES_STAT3, 1));
1715 reg_block_dump(ap, buf, XGM_REG(A_XGM_SERDES_STATUS0, 1),
1716 XGM_REG(A_XGM_RX_SPI4_SOP_EOP_CNT, 1));
1717}
1718
1719static int restart_autoneg(struct net_device *dev)
1720{
1721 struct port_info *p = netdev_priv(dev);
1722
1723 if (!netif_running(dev))
1724 return -EAGAIN;
1725 if (p->link_config.autoneg != AUTONEG_ENABLE)
1726 return -EINVAL;
1727 p->phy.ops->autoneg_restart(&p->phy);
1728 return 0;
1729}
1730
12fcf941 1731static int set_phys_id(struct net_device *dev,
1732 enum ethtool_phys_id_state state)
4d22de3e 1733{
5fbf816f
DLR		 1734 struct port_info *pi = netdev_priv(dev);
1735 struct adapter *adapter = pi->adapter;
4d22de3e 1736
12fcf941 1737 switch (state) {
1738 case ETHTOOL_ID_ACTIVE:
fce55922 1739 return 1; /* cycle on/off once per second */
12fcf941 1740
1741 case ETHTOOL_ID_OFF:
1742 t3_set_reg_field(adapter, A_T3DBG_GPIO_EN, F_GPIO0_OUT_VAL, 0);
1743 break;
4d22de3e 1744
12fcf941 1745 case ETHTOOL_ID_ON:
1746 case ETHTOOL_ID_INACTIVE:
4d22de3e 1747 t3_set_reg_field(adapter, A_T3DBG_GPIO_EN, F_GPIO0_OUT_VAL,
4d22de3e 1748 F_GPIO0_OUT_VAL);
12fcf941 1749 }
1750
4d22de3e
DLR		 1751 return 0;
1752}
1753
1754static int get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
1755{
1756 struct port_info *p = netdev_priv(dev);
1757
1758 cmd->supported = p->link_config.supported;
1759 cmd->advertising = p->link_config.advertising;
1760
1761 if (netif_carrier_ok(dev)) {
1762 cmd->speed = p->link_config.speed;
1763 cmd->duplex = p->link_config.duplex;
1764 } else {
1765 cmd->speed = -1;
1766 cmd->duplex = -1;
1767 }
1768
1769 cmd->port = (cmd->supported & SUPPORTED_TP) ? PORT_TP : PORT_FIBRE;
0f07c4ee 1770 cmd->phy_address = p->phy.mdio.prtad;
4d22de3e
DLR		 1771 cmd->transceiver = XCVR_EXTERNAL;
1772 cmd->autoneg = p->link_config.autoneg;
1773 cmd->maxtxpkt = 0;
1774 cmd->maxrxpkt = 0;
1775 return 0;
1776}
1777
1778static int speed_duplex_to_caps(int speed, int duplex)
1779{
1780 int cap = 0;
1781
1782 switch (speed) {
1783 case SPEED_10:
1784 if (duplex == DUPLEX_FULL)
1785 cap = SUPPORTED_10baseT_Full;
1786 else
1787 cap = SUPPORTED_10baseT_Half;
1788 break;
1789 case SPEED_100:
1790 if (duplex == DUPLEX_FULL)
1791 cap = SUPPORTED_100baseT_Full;
1792 else
1793 cap = SUPPORTED_100baseT_Half;
1794 break;
1795 case SPEED_1000:
1796 if (duplex == DUPLEX_FULL)
1797 cap = SUPPORTED_1000baseT_Full;
1798 else
1799 cap = SUPPORTED_1000baseT_Half;
1800 break;
1801 case SPEED_10000:
1802 if (duplex == DUPLEX_FULL)
1803 cap = SUPPORTED_10000baseT_Full;
1804 }
1805 return cap;
1806}
1807
1808#define ADVERTISED_MASK (ADVERTISED_10baseT_Half | ADVERTISED_10baseT_Full | \
1809 ADVERTISED_100baseT_Half | ADVERTISED_100baseT_Full | \
1810 ADVERTISED_1000baseT_Half | ADVERTISED_1000baseT_Full | \
1811 ADVERTISED_10000baseT_Full)
1812
1813static int set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
1814{
1815 struct port_info *p = netdev_priv(dev);
1816 struct link_config *lc = &p->link_config;
1817
9b1e3656
DLR		 1818 if (!(lc->supported & SUPPORTED_Autoneg)) {
1819 /*
1820 * PHY offers a single speed/duplex. See if that's what's
1821 * being requested.
1822 */
1823 if (cmd->autoneg == AUTONEG_DISABLE) {
97915b5b 1824 int cap = speed_duplex_to_caps(cmd->speed, cmd->duplex);
9b1e3656
DLR		 1825 if (lc->supported & cap)
1826 return 0;
1827 }
1828 return -EINVAL;
1829 }
4d22de3e
DLR		 1830
1831 if (cmd->autoneg == AUTONEG_DISABLE) {
1832 int cap = speed_duplex_to_caps(cmd->speed, cmd->duplex);
1833
1834 if (!(lc->supported & cap) || cmd->speed == SPEED_1000)
1835 return -EINVAL;
1836 lc->requested_speed = cmd->speed;
1837 lc->requested_duplex = cmd->duplex;
1838 lc->advertising = 0;
1839 } else {
1840 cmd->advertising &= ADVERTISED_MASK;
1841 cmd->advertising &= lc->supported;
1842 if (!cmd->advertising)
1843 return -EINVAL;
1844 lc->requested_speed = SPEED_INVALID;
1845 lc->requested_duplex = DUPLEX_INVALID;
1846 lc->advertising = cmd->advertising | ADVERTISED_Autoneg;
1847 }
1848 lc->autoneg = cmd->autoneg;
1849 if (netif_running(dev))
1850 t3_link_start(&p->phy, &p->mac, lc);
1851 return 0;
1852}
1853
1854static void get_pauseparam(struct net_device *dev,
1855 struct ethtool_pauseparam *epause)
1856{
1857 struct port_info *p = netdev_priv(dev);
1858
1859 epause->autoneg = (p->link_config.requested_fc & PAUSE_AUTONEG) != 0;
1860 epause->rx_pause = (p->link_config.fc & PAUSE_RX) != 0;
1861 epause->tx_pause = (p->link_config.fc & PAUSE_TX) != 0;
1862}
1863
1864static int set_pauseparam(struct net_device *dev,
1865 struct ethtool_pauseparam *epause)
1866{
1867 struct port_info *p = netdev_priv(dev);
1868 struct link_config *lc = &p->link_config;
1869
1870 if (epause->autoneg == AUTONEG_DISABLE)
1871 lc->requested_fc = 0;
1872 else if (lc->supported & SUPPORTED_Autoneg)
1873 lc->requested_fc = PAUSE_AUTONEG;
1874 else
1875 return -EINVAL;
1876
1877 if (epause->rx_pause)
1878 lc->requested_fc |= PAUSE_RX;
1879 if (epause->tx_pause)
1880 lc->requested_fc |= PAUSE_TX;
1881 if (lc->autoneg == AUTONEG_ENABLE) {
1882 if (netif_running(dev))
1883 t3_link_start(&p->phy, &p->mac, lc);
1884 } else {
1885 lc->fc = lc->requested_fc & (PAUSE_RX | PAUSE_TX);
1886 if (netif_running(dev))
1887 t3_mac_set_speed_duplex_fc(&p->mac, -1, -1, lc->fc);
1888 }
1889 return 0;
1890}
1891
4d22de3e
DLR		 1892static void get_sge_param(struct net_device *dev, struct ethtool_ringparam *e)
1893{
5fbf816f
DLR		 1894 struct port_info *pi = netdev_priv(dev);
1895 struct adapter *adapter = pi->adapter;
05b97b30 1896 const struct qset_params *q = &adapter->params.sge.qset[pi->first_qset];
4d22de3e
DLR		 1897
1898 e->rx_max_pending = MAX_RX_BUFFERS;
1899 e->rx_mini_max_pending = 0;
1900 e->rx_jumbo_max_pending = MAX_RX_JUMBO_BUFFERS;
1901 e->tx_max_pending = MAX_TXQ_ENTRIES;
1902
05b97b30
DLR		 1903 e->rx_pending = q->fl_size;
1904 e->rx_mini_pending = q->rspq_size;
1905 e->rx_jumbo_pending = q->jumbo_size;
1906 e->tx_pending = q->txq_size[0];
4d22de3e
DLR		 1907}
1908
1909static int set_sge_param(struct net_device *dev, struct ethtool_ringparam *e)
1910{
5fbf816f
DLR		 1911 struct port_info *pi = netdev_priv(dev);
1912 struct adapter *adapter = pi->adapter;
05b97b30 1913 struct qset_params *q;
5fbf816f 1914 int i;
4d22de3e
DLR		 1915
1916 if (e->rx_pending > MAX_RX_BUFFERS ||
1917 e->rx_jumbo_pending > MAX_RX_JUMBO_BUFFERS ||
1918 e->tx_pending > MAX_TXQ_ENTRIES ||
1919 e->rx_mini_pending > MAX_RSPQ_ENTRIES ||
1920 e->rx_mini_pending < MIN_RSPQ_ENTRIES ||
1921 e->rx_pending < MIN_FL_ENTRIES ||
1922 e->rx_jumbo_pending < MIN_FL_ENTRIES ||
1923 e->tx_pending < adapter->params.nports * MIN_TXQ_ENTRIES)
1924 return -EINVAL;
1925
1926 if (adapter->flags & FULL_INIT_DONE)
1927 return -EBUSY;
1928
05b97b30
DLR		 1929 q = &adapter->params.sge.qset[pi->first_qset];
1930 for (i = 0; i < pi->nqsets; ++i, ++q) {
4d22de3e
DLR		 1931 q->rspq_size = e->rx_mini_pending;
1932 q->fl_size = e->rx_pending;
1933 q->jumbo_size = e->rx_jumbo_pending;
1934 q->txq_size[0] = e->tx_pending;
1935 q->txq_size[1] = e->tx_pending;
1936 q->txq_size[2] = e->tx_pending;
1937 }
1938 return 0;
1939}
1940
1941static int set_coalesce(struct net_device *dev, struct ethtool_coalesce *c)
1942{
5fbf816f
DLR		 1943 struct port_info *pi = netdev_priv(dev);
1944 struct adapter *adapter = pi->adapter;
c211c969
AB		 1945 struct qset_params *qsp;
1946 struct sge_qset *qs;
1947 int i;
4d22de3e
DLR		 1948
1949 if (c->rx_coalesce_usecs * 10 > M_NEWTIMER)
1950 return -EINVAL;
1951
c211c969
AB		 1952 for (i = 0; i < pi->nqsets; i++) {
1953 qsp = &adapter->params.sge.qset[i];
1954 qs = &adapter->sge.qs[i];
1955 qsp->coalesce_usecs = c->rx_coalesce_usecs;
1956 t3_update_qset_coalesce(qs, qsp);
1957 }
1958
4d22de3e
DLR		 1959 return 0;
1960}
1961
1962static int get_coalesce(struct net_device *dev, struct ethtool_coalesce *c)
1963{
5fbf816f
DLR		 1964 struct port_info *pi = netdev_priv(dev);
1965 struct adapter *adapter = pi->adapter;
4d22de3e
DLR		 1966 struct qset_params *q = adapter->params.sge.qset;
1967
1968 c->rx_coalesce_usecs = q->coalesce_usecs;
1969 return 0;
1970}
1971
1972static int get_eeprom(struct net_device *dev, struct ethtool_eeprom *e,
1973 u8 * data)
1974{
5fbf816f
DLR		 1975 struct port_info *pi = netdev_priv(dev);
1976 struct adapter *adapter = pi->adapter;
4d22de3e 1977 int i, err = 0;
4d22de3e
DLR		 1978
1979 u8 *buf = kmalloc(EEPROMSIZE, GFP_KERNEL);
1980 if (!buf)
1981 return -ENOMEM;
1982
1983 e->magic = EEPROM_MAGIC;
1984 for (i = e->offset & ~3; !err && i < e->offset + e->len; i += 4)
05e5c116 1985 err = t3_seeprom_read(adapter, i, (__le32 *) & buf[i]);
4d22de3e
DLR		 1986
1987 if (!err)
1988 memcpy(data, buf + e->offset, e->len);
1989 kfree(buf);
1990 return err;
1991}
1992
1993static int set_eeprom(struct net_device *dev, struct ethtool_eeprom *eeprom,
1994 u8 * data)
1995{
5fbf816f
DLR		 1996 struct port_info *pi = netdev_priv(dev);
1997 struct adapter *adapter = pi->adapter;
05e5c116
AV		 1998 u32 aligned_offset, aligned_len;
1999 __le32 *p;
4d22de3e 2000 u8 *buf;
c54f5c24 2001 int err;
4d22de3e
DLR		 2002
2003 if (eeprom->magic != EEPROM_MAGIC)
2004 return -EINVAL;
2005
2006 aligned_offset = eeprom->offset & ~3;
2007 aligned_len = (eeprom->len + (eeprom->offset & 3) + 3) & ~3;
2008
2009 if (aligned_offset != eeprom->offset || aligned_len != eeprom->len) {
2010 buf = kmalloc(aligned_len, GFP_KERNEL);
2011 if (!buf)
2012 return -ENOMEM;
05e5c116 2013 err = t3_seeprom_read(adapter, aligned_offset, (__le32 *) buf);
4d22de3e
DLR		 2014 if (!err && aligned_len > 4)
2015 err = t3_seeprom_read(adapter,
2016 aligned_offset + aligned_len - 4,
05e5c116 2017 (__le32 *) & buf[aligned_len - 4]);
4d22de3e
DLR		 2018 if (err)
2019 goto out;
2020 memcpy(buf + (eeprom->offset & 3), data, eeprom->len);
2021 } else
2022 buf = data;
2023
2024 err = t3_seeprom_wp(adapter, 0);
2025 if (err)
2026 goto out;
2027
05e5c116 2028 for (p = (__le32 *) buf; !err && aligned_len; aligned_len -= 4, p++) {
4d22de3e
DLR		 2029 err = t3_seeprom_write(adapter, aligned_offset, *p);
2030 aligned_offset += 4;
2031 }
2032
2033 if (!err)
2034 err = t3_seeprom_wp(adapter, 1);
2035out:
2036 if (buf != data)
2037 kfree(buf);
2038 return err;
2039}
2040
2041static void get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
2042{
2043 wol->supported = 0;
2044 wol->wolopts = 0;
2045 memset(&wol->sopass, 0, sizeof(wol->sopass));
2046}
2047
2048static const struct ethtool_ops cxgb_ethtool_ops = {
2049 .get_settings = get_settings,
2050 .set_settings = set_settings,
2051 .get_drvinfo = get_drvinfo,
2052 .get_msglevel = get_msglevel,
2053 .set_msglevel = set_msglevel,
2054 .get_ringparam = get_sge_param,
2055 .set_ringparam = set_sge_param,
2056 .get_coalesce = get_coalesce,
2057 .set_coalesce = set_coalesce,
2058 .get_eeprom_len = get_eeprom_len,
2059 .get_eeprom = get_eeprom,
2060 .set_eeprom = set_eeprom,
2061 .get_pauseparam = get_pauseparam,
2062 .set_pauseparam = set_pauseparam,
4d22de3e
DLR		 2063 .get_link = ethtool_op_get_link,
2064 .get_strings = get_strings,
12fcf941 2065 .set_phys_id = set_phys_id,
4d22de3e 2066 .nway_reset = restart_autoneg,
b9f2c044 2067 .get_sset_count = get_sset_count,
4d22de3e
DLR		 2068 .get_ethtool_stats = get_stats,
2069 .get_regs_len = get_regs_len,
2070 .get_regs = get_regs,
2071 .get_wol = get_wol,
4d22de3e
DLR		 2072};
2073
2074static int in_range(int val, int lo, int hi)
2075{
2076 return val < 0 || (val <= hi && val >= lo);
2077}
2078
2079static int cxgb_extension_ioctl(struct net_device *dev, void __user *useraddr)
2080{
5fbf816f
DLR		 2081 struct port_info *pi = netdev_priv(dev);
2082 struct adapter *adapter = pi->adapter;
4d22de3e 2083 u32 cmd;
5fbf816f 2084 int ret;
4d22de3e
DLR		 2085
2086 if (copy_from_user(&cmd, useraddr, sizeof(cmd)))
2087 return -EFAULT;
2088
2089 switch (cmd) {
4d22de3e
DLR		 2090 case CHELSIO_SET_QSET_PARAMS:{
2091 int i;
2092 struct qset_params *q;
2093 struct ch_qset_params t;
8c263761
DLR		 2094 int q1 = pi->first_qset;
2095 int nqsets = pi->nqsets;
4d22de3e
DLR		 2096
2097 if (!capable(CAP_NET_ADMIN))
2098 return -EPERM;
2099 if (copy_from_user(&t, useraddr, sizeof(t)))
2100 return -EFAULT;
2101 if (t.qset_idx >= SGE_QSETS)
2102 return -EINVAL;
2103 if (!in_range(t.intr_lat, 0, M_NEWTIMER) ||
8e95a202
JP		 2104 !in_range(t.cong_thres, 0, 255) ||
2105 !in_range(t.txq_size[0], MIN_TXQ_ENTRIES,
2106 MAX_TXQ_ENTRIES) ||
2107 !in_range(t.txq_size[1], MIN_TXQ_ENTRIES,
2108 MAX_TXQ_ENTRIES) ||
2109 !in_range(t.txq_size[2], MIN_CTRL_TXQ_ENTRIES,
2110 MAX_CTRL_TXQ_ENTRIES) ||
2111 !in_range(t.fl_size[0], MIN_FL_ENTRIES,
2112 MAX_RX_BUFFERS) ||
2113 !in_range(t.fl_size[1], MIN_FL_ENTRIES,
2114 MAX_RX_JUMBO_BUFFERS) ||
2115 !in_range(t.rspq_size, MIN_RSPQ_ENTRIES,
2116 MAX_RSPQ_ENTRIES))
4d22de3e 2117 return -EINVAL;
8c263761 2118
4d22de3e
DLR		 2119 if ((adapter->flags & FULL_INIT_DONE) &&
2120 (t.rspq_size >= 0 || t.fl_size[0] >= 0 ||
2121 t.fl_size[1] >= 0 || t.txq_size[0] >= 0 ||
2122 t.txq_size[1] >= 0 || t.txq_size[2] >= 0 ||
2123 t.polling >= 0 || t.cong_thres >= 0))
2124 return -EBUSY;
2125
8c263761
DLR		 2126 /* Allow setting of any available qset when offload enabled */
2127 if (test_bit(OFFLOAD_DEVMAP_BIT, &adapter->open_device_map)) {
2128 q1 = 0;
2129 for_each_port(adapter, i) {
2130 pi = adap2pinfo(adapter, i);
2131 nqsets += pi->first_qset + pi->nqsets;
2132 }
2133 }
2134
2135 if (t.qset_idx < q1)
2136 return -EINVAL;
2137 if (t.qset_idx > q1 + nqsets - 1)
2138 return -EINVAL;
2139
4d22de3e
DLR		 2140 q = &adapter->params.sge.qset[t.qset_idx];
2141
2142 if (t.rspq_size >= 0)
2143 q->rspq_size = t.rspq_size;
2144 if (t.fl_size[0] >= 0)
2145 q->fl_size = t.fl_size[0];
2146 if (t.fl_size[1] >= 0)
2147 q->jumbo_size = t.fl_size[1];
2148 if (t.txq_size[0] >= 0)
2149 q->txq_size[0] = t.txq_size[0];
2150 if (t.txq_size[1] >= 0)
2151 q->txq_size[1] = t.txq_size[1];
2152 if (t.txq_size[2] >= 0)
2153 q->txq_size[2] = t.txq_size[2];
2154 if (t.cong_thres >= 0)
2155 q->cong_thres = t.cong_thres;
2156 if (t.intr_lat >= 0) {
2157 struct sge_qset *qs =
2158 &adapter->sge.qs[t.qset_idx];
2159
2160 q->coalesce_usecs = t.intr_lat;
2161 t3_update_qset_coalesce(qs, q);
2162 }
2163 if (t.polling >= 0) {
2164 if (adapter->flags & USING_MSIX)
2165 q->polling = t.polling;
2166 else {
2167 /* No polling with INTx for T3A */
2168 if (adapter->params.rev == 0 &&
2169 !(adapter->flags & USING_MSI))
2170 t.polling = 0;
2171
2172 for (i = 0; i < SGE_QSETS; i++) {
2173 q = &adapter->params.sge.
2174 qset[i];
2175 q->polling = t.polling;
2176 }
2177 }
2178 }
d2fe2755
MM		 2179
2180 if (t.lro >= 0) {
2181 if (t.lro)
2182 dev->wanted_features |= NETIF_F_GRO;
2183 else
2184 dev->wanted_features &= ~NETIF_F_GRO;
2185 netdev_update_features(dev);
2186 }
04ecb072 2187
4d22de3e
DLR		 2188 break;
2189 }
2190 case CHELSIO_GET_QSET_PARAMS:{
2191 struct qset_params *q;
2192 struct ch_qset_params t;
8c263761
DLR		 2193 int q1 = pi->first_qset;
2194 int nqsets = pi->nqsets;
2195 int i;
4d22de3e
DLR		 2196
2197 if (copy_from_user(&t, useraddr, sizeof(t)))
2198 return -EFAULT;
8c263761
DLR		 2199
2200 /* Display qsets for all ports when offload enabled */
2201 if (test_bit(OFFLOAD_DEVMAP_BIT, &adapter->open_device_map)) {
2202 q1 = 0;
2203 for_each_port(adapter, i) {
2204 pi = adap2pinfo(adapter, i);
2205 nqsets = pi->first_qset + pi->nqsets;
2206 }
2207 }
2208
2209 if (t.qset_idx >= nqsets)
4d22de3e
DLR		 2210 return -EINVAL;
2211
8c263761 2212 q = &adapter->params.sge.qset[q1 + t.qset_idx];
4d22de3e
DLR		 2213 t.rspq_size = q->rspq_size;
2214 t.txq_size[0] = q->txq_size[0];
2215 t.txq_size[1] = q->txq_size[1];
2216 t.txq_size[2] = q->txq_size[2];
2217 t.fl_size[0] = q->fl_size;
2218 t.fl_size[1] = q->jumbo_size;
2219 t.polling = q->polling;
d2fe2755 2220 t.lro = !!(dev->features & NETIF_F_GRO);
4d22de3e
DLR		 2221 t.intr_lat = q->coalesce_usecs;
2222 t.cong_thres = q->cong_thres;
8c263761
DLR		 2223 t.qnum = q1;
2224
2225 if (adapter->flags & USING_MSIX)
2226 t.vector = adapter->msix_info[q1 + t.qset_idx + 1].vec;
2227 else
2228 t.vector = adapter->pdev->irq;
4d22de3e
DLR		 2229
2230 if (copy_to_user(useraddr, &t, sizeof(t)))
2231 return -EFAULT;
2232 break;
2233 }
2234 case CHELSIO_SET_QSET_NUM:{
2235 struct ch_reg edata;
4d22de3e
DLR		 2236 unsigned int i, first_qset = 0, other_qsets = 0;
2237
2238 if (!capable(CAP_NET_ADMIN))
2239 return -EPERM;
2240 if (adapter->flags & FULL_INIT_DONE)
2241 return -EBUSY;
2242 if (copy_from_user(&edata, useraddr, sizeof(edata)))
2243 return -EFAULT;
2244 if (edata.val < 1 ||
2245 (edata.val > 1 && !(adapter->flags & USING_MSIX)))
2246 return -EINVAL;
2247
2248 for_each_port(adapter, i)
2249 if (adapter->port[i] && adapter->port[i] != dev)
2250 other_qsets += adap2pinfo(adapter, i)->nqsets;
2251
2252 if (edata.val + other_qsets > SGE_QSETS)
2253 return -EINVAL;
2254
2255 pi->nqsets = edata.val;
2256
2257 for_each_port(adapter, i)
2258 if (adapter->port[i]) {
2259 pi = adap2pinfo(adapter, i);
2260 pi->first_qset = first_qset;
2261 first_qset += pi->nqsets;
2262 }
2263 break;
2264 }
2265 case CHELSIO_GET_QSET_NUM:{
2266 struct ch_reg edata;
4d22de3e 2267
49c37c03
DR		 2268 memset(&edata, 0, sizeof(struct ch_reg));
2269
4d22de3e
DLR		 2270 edata.cmd = CHELSIO_GET_QSET_NUM;
2271 edata.val = pi->nqsets;
2272 if (copy_to_user(useraddr, &edata, sizeof(edata)))
2273 return -EFAULT;
2274 break;
2275 }
2276 case CHELSIO_LOAD_FW:{
2277 u8 *fw_data;
2278 struct ch_mem_range t;
2279
1b3aa7af 2280 if (!capable(CAP_SYS_RAWIO))
4d22de3e
DLR		 2281 return -EPERM;
2282 if (copy_from_user(&t, useraddr, sizeof(t)))
2283 return -EFAULT;
1b3aa7af 2284 /* Check t.len sanity ? */
c5dc9a35
JL		 2285 fw_data = memdup_user(useraddr + sizeof(t), t.len);
2286 if (IS_ERR(fw_data))
2287 return PTR_ERR(fw_data);
4d22de3e
DLR		 2288
2289 ret = t3_load_fw(adapter, fw_data, t.len);
2290 kfree(fw_data);
2291 if (ret)
2292 return ret;
2293 break;
2294 }
2295 case CHELSIO_SETMTUTAB:{
2296 struct ch_mtus m;
2297 int i;
2298
2299 if (!is_offload(adapter))
2300 return -EOPNOTSUPP;
2301 if (!capable(CAP_NET_ADMIN))
2302 return -EPERM;
2303 if (offload_running(adapter))
2304 return -EBUSY;
2305 if (copy_from_user(&m, useraddr, sizeof(m)))
2306 return -EFAULT;
2307 if (m.nmtus != NMTUS)
2308 return -EINVAL;
2309 if (m.mtus[0] < 81) /* accommodate SACK */
2310 return -EINVAL;
2311
2312 /* MTUs must be in ascending order */
2313 for (i = 1; i < NMTUS; ++i)
2314 if (m.mtus[i] < m.mtus[i - 1])
2315 return -EINVAL;
2316
2317 memcpy(adapter->params.mtus, m.mtus,
2318 sizeof(adapter->params.mtus));
2319 break;
2320 }
2321 case CHELSIO_GET_PM:{
2322 struct tp_params *p = &adapter->params.tp;
2323 struct ch_pm m = {.cmd = CHELSIO_GET_PM };
2324
2325 if (!is_offload(adapter))
2326 return -EOPNOTSUPP;
2327 m.tx_pg_sz = p->tx_pg_size;
2328 m.tx_num_pg = p->tx_num_pgs;
2329 m.rx_pg_sz = p->rx_pg_size;
2330 m.rx_num_pg = p->rx_num_pgs;
2331 m.pm_total = p->pmtx_size + p->chan_rx_size * p->nchan;
2332 if (copy_to_user(useraddr, &m, sizeof(m)))
2333 return -EFAULT;
2334 break;
2335 }
2336 case CHELSIO_SET_PM:{
2337 struct ch_pm m;
2338 struct tp_params *p = &adapter->params.tp;
2339
2340 if (!is_offload(adapter))
2341 return -EOPNOTSUPP;
2342 if (!capable(CAP_NET_ADMIN))
2343 return -EPERM;
2344 if (adapter->flags & FULL_INIT_DONE)
2345 return -EBUSY;
2346 if (copy_from_user(&m, useraddr, sizeof(m)))
2347 return -EFAULT;
d9da466a 2348 if (!is_power_of_2(m.rx_pg_sz) ||
2349 !is_power_of_2(m.tx_pg_sz))
4d22de3e
DLR		 2350 return -EINVAL; /* not power of 2 */
2351 if (!(m.rx_pg_sz & 0x14000))
2352 return -EINVAL; /* not 16KB or 64KB */
2353 if (!(m.tx_pg_sz & 0x1554000))
2354 return -EINVAL;
2355 if (m.tx_num_pg == -1)
2356 m.tx_num_pg = p->tx_num_pgs;
2357 if (m.rx_num_pg == -1)
2358 m.rx_num_pg = p->rx_num_pgs;
2359 if (m.tx_num_pg % 24 || m.rx_num_pg % 24)
2360 return -EINVAL;
2361 if (m.rx_num_pg * m.rx_pg_sz > p->chan_rx_size ||
2362 m.tx_num_pg * m.tx_pg_sz > p->chan_tx_size)
2363 return -EINVAL;
2364 p->rx_pg_size = m.rx_pg_sz;
2365 p->tx_pg_size = m.tx_pg_sz;
2366 p->rx_num_pgs = m.rx_num_pg;
2367 p->tx_num_pgs = m.tx_num_pg;
2368 break;
2369 }
2370 case CHELSIO_GET_MEM:{
2371 struct ch_mem_range t;
2372 struct mc7 *mem;
2373 u64 buf[32];
2374
2375 if (!is_offload(adapter))
2376 return -EOPNOTSUPP;
2377 if (!(adapter->flags & FULL_INIT_DONE))
2378 return -EIO; /* need the memory controllers */
2379 if (copy_from_user(&t, useraddr, sizeof(t)))
2380 return -EFAULT;
2381 if ((t.addr & 7) || (t.len & 7))
2382 return -EINVAL;
2383 if (t.mem_id == MEM_CM)
2384 mem = &adapter->cm;
2385 else if (t.mem_id == MEM_PMRX)
2386 mem = &adapter->pmrx;
2387 else if (t.mem_id == MEM_PMTX)
2388 mem = &adapter->pmtx;
2389 else
2390 return -EINVAL;
2391
2392 /*
1825494a
DLR		 2393 * Version scheme:
2394 * bits 0..9: chip version
2395 * bits 10..15: chip revision
2396 */
4d22de3e
DLR		 2397 t.version = 3 | (adapter->params.rev << 10);
2398 if (copy_to_user(useraddr, &t, sizeof(t)))
2399 return -EFAULT;
2400
2401 /*
2402 * Read 256 bytes at a time as len can be large and we don't
2403 * want to use huge intermediate buffers.
2404 */
2405 useraddr += sizeof(t); /* advance to start of buffer */
2406 while (t.len) {
2407 unsigned int chunk =
2408 min_t(unsigned int, t.len, sizeof(buf));
2409
2410 ret =
2411 t3_mc7_bd_read(mem, t.addr / 8, chunk / 8,
2412 buf);
2413 if (ret)
2414 return ret;
2415 if (copy_to_user(useraddr, buf, chunk))
2416 return -EFAULT;
2417 useraddr += chunk;
2418 t.addr += chunk;
2419 t.len -= chunk;
2420 }
2421 break;
2422 }
2423 case CHELSIO_SET_TRACE_FILTER:{
2424 struct ch_trace t;
2425 const struct trace_params *tp;
2426
2427 if (!capable(CAP_NET_ADMIN))
2428 return -EPERM;
2429 if (!offload_running(adapter))
2430 return -EAGAIN;
2431 if (copy_from_user(&t, useraddr, sizeof(t)))
2432 return -EFAULT;
2433
2434 tp = (const struct trace_params *)&t.sip;
2435 if (t.config_tx)
2436 t3_config_trace_filter(adapter, tp, 0,
2437 t.invert_match,
2438 t.trace_tx);
2439 if (t.config_rx)
2440 t3_config_trace_filter(adapter, tp, 1,
2441 t.invert_match,
2442 t.trace_rx);
2443 break;
2444 }
4d22de3e
DLR		 2445 default:
2446 return -EOPNOTSUPP;
2447 }
2448 return 0;
2449}
2450
2451static int cxgb_ioctl(struct net_device *dev, struct ifreq *req, int cmd)
2452{
4d22de3e 2453 struct mii_ioctl_data *data = if_mii(req);
5fbf816f
DLR		 2454 struct port_info *pi = netdev_priv(dev);
2455 struct adapter *adapter = pi->adapter;
4d22de3e
DLR		 2456
2457 switch (cmd) {
0f07c4ee
BH		 2458 case SIOCGMIIREG:
2459 case SIOCSMIIREG:
2460 /* Convert phy_id from older PRTAD/DEVAD format */
2461 if (is_10G(adapter) &&
2462 !mdio_phy_id_is_c45(data->phy_id) &&
2463 (data->phy_id & 0x1f00) &&
2464 !(data->phy_id & 0xe0e0))
2465 data->phy_id = mdio_phy_id_c45(data->phy_id >> 8,
2466 data->phy_id & 0x1f);
4d22de3e 2467 /* FALLTHRU */
0f07c4ee
BH		 2468 case SIOCGMIIPHY:
2469 return mdio_mii_ioctl(&pi->phy.mdio, data, cmd);
4d22de3e
DLR		 2470 case SIOCCHIOCTL:
2471 return cxgb_extension_ioctl(dev, req->ifr_data);
2472 default:
2473 return -EOPNOTSUPP;
2474 }
4d22de3e
DLR		 2475}
2476
2477static int cxgb_change_mtu(struct net_device *dev, int new_mtu)
2478{
4d22de3e 2479 struct port_info *pi = netdev_priv(dev);
5fbf816f
DLR		 2480 struct adapter *adapter = pi->adapter;
2481 int ret;
4d22de3e
DLR		 2482
2483 if (new_mtu < 81) /* accommodate SACK */
2484 return -EINVAL;
2485 if ((ret = t3_mac_set_mtu(&pi->mac, new_mtu)))
2486 return ret;
2487 dev->mtu = new_mtu;
2488 init_port_mtus(adapter);
2489 if (adapter->params.rev == 0 && offload_running(adapter))
2490 t3_load_mtus(adapter, adapter->params.mtus,
2491 adapter->params.a_wnd, adapter->params.b_wnd,
2492 adapter->port[0]->mtu);
2493 return 0;
2494}
2495
2496static int cxgb_set_mac_addr(struct net_device *dev, void *p)
2497{
4d22de3e 2498 struct port_info *pi = netdev_priv(dev);
5fbf816f 2499 struct adapter *adapter = pi->adapter;
4d22de3e
DLR		 2500 struct sockaddr *addr = p;
2501
2502 if (!is_valid_ether_addr(addr->sa_data))
2503 return -EINVAL;
2504
2505 memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
f14d42f3 2506 t3_mac_set_address(&pi->mac, LAN_MAC_IDX, dev->dev_addr);
4d22de3e
DLR		 2507 if (offload_running(adapter))
2508 write_smt_entry(adapter, pi->port_id);
2509 return 0;
2510}
2511
2512/**
2513 * t3_synchronize_rx - wait for current Rx processing on a port to complete
2514 * @adap: the adapter
2515 * @p: the port
2516 *
2517 * Ensures that current Rx processing on any of the queues associated with
2518 * the given port completes before returning. We do this by acquiring and
2519 * releasing the locks of the response queues associated with the port.
2520 */
2521static void t3_synchronize_rx(struct adapter *adap, const struct port_info *p)
2522{
2523 int i;
2524
8c263761
DLR		 2525 for (i = p->first_qset; i < p->first_qset + p->nqsets; i++) {
2526 struct sge_rspq *q = &adap->sge.qs[i].rspq;
4d22de3e
DLR		 2527
2528 spin_lock_irq(&q->lock);
2529 spin_unlock_irq(&q->lock);
2530 }
2531}
2532
2533static void vlan_rx_register(struct net_device *dev, struct vlan_group *grp)
2534{
4d22de3e 2535 struct port_info *pi = netdev_priv(dev);
5fbf816f 2536 struct adapter *adapter = pi->adapter;
4d22de3e
DLR		 2537
2538 pi->vlan_grp = grp;
2539 if (adapter->params.rev > 0)
2540 t3_set_vlan_accel(adapter, 1 << pi->port_id, grp != NULL);
2541 else {
2542 /* single control for all ports */
2543 unsigned int i, have_vlans = 0;
2544 for_each_port(adapter, i)
2545 have_vlans |= adap2pinfo(adapter, i)->vlan_grp != NULL;
2546
2547 t3_set_vlan_accel(adapter, 1, have_vlans);
2548 }
2549 t3_synchronize_rx(adapter, pi);
2550}
2551
4d22de3e
DLR		 2552#ifdef CONFIG_NET_POLL_CONTROLLER
2553static void cxgb_netpoll(struct net_device *dev)
2554{
890de332 2555 struct port_info *pi = netdev_priv(dev);
5fbf816f 2556 struct adapter *adapter = pi->adapter;
890de332 2557 int qidx;
4d22de3e 2558
890de332
DLR		 2559 for (qidx = pi->first_qset; qidx < pi->first_qset + pi->nqsets; qidx++) {
2560 struct sge_qset *qs = &adapter->sge.qs[qidx];
2561 void *source;
2eab17ab 2562
890de332
DLR		 2563 if (adapter->flags & USING_MSIX)
2564 source = qs;
2565 else
2566 source = adapter;
2567
2568 t3_intr_handler(adapter, qs->rspq.polling) (0, source);
2569 }
4d22de3e
DLR		 2570}
2571#endif
2572
2573/*
2574 * Periodic accumulation of MAC statistics.
2575 */
2576static void mac_stats_update(struct adapter *adapter)
2577{
2578 int i;
2579
2580 for_each_port(adapter, i) {
2581 struct net_device *dev = adapter->port[i];
2582 struct port_info *p = netdev_priv(dev);
2583
2584 if (netif_running(dev)) {
2585 spin_lock(&adapter->stats_lock);
2586 t3_mac_update_stats(&p->mac);
2587 spin_unlock(&adapter->stats_lock);
2588 }
2589 }
2590}
2591
2592static void check_link_status(struct adapter *adapter)
2593{
2594 int i;
2595
2596 for_each_port(adapter, i) {
2597 struct net_device *dev = adapter->port[i];
2598 struct port_info *p = netdev_priv(dev);
c22c8149 2599 int link_fault;
4d22de3e 2600
bf792094 2601 spin_lock_irq(&adapter->work_lock);
c22c8149
DLR		 2602 link_fault = p->link_fault;
2603 spin_unlock_irq(&adapter->work_lock);
2604
2605 if (link_fault) {
3851c66c 2606 t3_link_fault(adapter, i);
bf792094
DLR		 2607 continue;
2608 }
bf792094
DLR		 2609
2610 if (!(p->phy.caps & SUPPORTED_IRQ) && netif_running(dev)) {
2611 t3_xgm_intr_disable(adapter, i);
2612 t3_read_reg(adapter, A_XGM_INT_STATUS + p->mac.offset);
2613
4d22de3e 2614 t3_link_changed(adapter, i);
bf792094
DLR		 2615 t3_xgm_intr_enable(adapter, i);
2616 }
4d22de3e
DLR		 2617 }
2618}
2619
fc90664e
DLR		 2620static void check_t3b2_mac(struct adapter *adapter)
2621{
2622 int i;
2623
f2d961c9
DLR		 2624 if (!rtnl_trylock()) /* synchronize with ifdown */
2625 return;
2626
fc90664e
DLR		 2627 for_each_port(adapter, i) {
2628 struct net_device *dev = adapter->port[i];
2629 struct port_info *p = netdev_priv(dev);
2630 int status;
2631
2632 if (!netif_running(dev))
2633 continue;
2634
2635 status = 0;
6d6dabac 2636 if (netif_running(dev) && netif_carrier_ok(dev))
fc90664e
DLR		 2637 status = t3b2_mac_watchdog_task(&p->mac);
2638 if (status == 1)
2639 p->mac.stats.num_toggled++;
2640 else if (status == 2) {
2641 struct cmac *mac = &p->mac;
2642
2643 t3_mac_set_mtu(mac, dev->mtu);
f14d42f3 2644 t3_mac_set_address(mac, LAN_MAC_IDX, dev->dev_addr);
fc90664e
DLR		 2645 cxgb_set_rxmode(dev);
2646 t3_link_start(&p->phy, mac, &p->link_config);
2647 t3_mac_enable(mac, MAC_DIRECTION_RX | MAC_DIRECTION_TX);
2648 t3_port_intr_enable(adapter, p->port_id);
2649 p->mac.stats.num_resets++;
2650 }
2651 }
2652 rtnl_unlock();
2653}
2654
2655
4d22de3e
DLR		 2656static void t3_adap_check_task(struct work_struct *work)
2657{
2658 struct adapter *adapter = container_of(work, struct adapter,
2659 adap_check_task.work);
2660 const struct adapter_params *p = &adapter->params;
fc882196
DLR		 2661 int port;
2662 unsigned int v, status, reset;
4d22de3e
DLR		 2663
2664 adapter->check_task_cnt++;
2665
3851c66c 2666 check_link_status(adapter);
4d22de3e
DLR		 2667
2668 /* Accumulate MAC stats if needed */
2669 if (!p->linkpoll_period ||
2670 (adapter->check_task_cnt * p->linkpoll_period) / 10 >=
2671 p->stats_update_period) {
2672 mac_stats_update(adapter);
2673 adapter->check_task_cnt = 0;
2674 }
2675
fc90664e
DLR		 2676 if (p->rev == T3_REV_B2)
2677 check_t3b2_mac(adapter);
2678
fc882196
DLR		 2679 /*
2680 * Scan the XGMAC's to check for various conditions which we want to
2681 * monitor in a periodic polling manner rather than via an interrupt
2682 * condition. This is used for conditions which would otherwise flood
2683 * the system with interrupts and we only really need to know that the
2684 * conditions are "happening" ... For each condition we count the
2685 * detection of the condition and reset it for the next polling loop.
2686 */
2687 for_each_port(adapter, port) {
2688 struct cmac *mac = &adap2pinfo(adapter, port)->mac;
2689 u32 cause;
2690
2691 cause = t3_read_reg(adapter, A_XGM_INT_CAUSE + mac->offset);
2692 reset = 0;
2693 if (cause & F_RXFIFO_OVERFLOW) {
2694 mac->stats.rx_fifo_ovfl++;
2695 reset |= F_RXFIFO_OVERFLOW;
2696 }
2697
2698 t3_write_reg(adapter, A_XGM_INT_CAUSE + mac->offset, reset);
2699 }
2700
2701 /*
2702 * We do the same as above for FL_EMPTY interrupts.
2703 */
2704 status = t3_read_reg(adapter, A_SG_INT_CAUSE);
2705 reset = 0;
2706
2707 if (status & F_FLEMPTY) {
2708 struct sge_qset *qs = &adapter->sge.qs[0];
2709 int i = 0;
2710
2711 reset |= F_FLEMPTY;
2712
2713 v = (t3_read_reg(adapter, A_SG_RSPQ_FL_STATUS) >> S_FL0EMPTY) &
2714 0xffff;
2715
2716 while (v) {
2717 qs->fl[i].empty += (v & 1);
2718 if (i)
2719 qs++;
2720 i ^= 1;
2721 v >>= 1;
2722 }
2723 }
2724
2725 t3_write_reg(adapter, A_SG_INT_CAUSE, reset);
2726
4d22de3e 2727 /* Schedule the next check update if any port is active. */
20d3fc11 2728 spin_lock_irq(&adapter->work_lock);
4d22de3e
DLR		 2729 if (adapter->open_device_map & PORT_MASK)
2730 schedule_chk_task(adapter);
20d3fc11 2731 spin_unlock_irq(&adapter->work_lock);
4d22de3e
DLR		 2732}
2733
e998f245
SW		 2734static void db_full_task(struct work_struct *work)
2735{
2736 struct adapter *adapter = container_of(work, struct adapter,
2737 db_full_task);
2738
2739 cxgb3_event_notify(&adapter->tdev, OFFLOAD_DB_FULL, 0);
2740}
2741
2742static void db_empty_task(struct work_struct *work)
2743{
2744 struct adapter *adapter = container_of(work, struct adapter,
2745 db_empty_task);
2746
2747 cxgb3_event_notify(&adapter->tdev, OFFLOAD_DB_EMPTY, 0);
2748}
2749
2750static void db_drop_task(struct work_struct *work)
2751{
2752 struct adapter *adapter = container_of(work, struct adapter,
2753 db_drop_task);
2754 unsigned long delay = 1000;
2755 unsigned short r;
2756
2757 cxgb3_event_notify(&adapter->tdev, OFFLOAD_DB_DROP, 0);
2758
2759 /*
2760 * Sleep a while before ringing the driver qset dbs.
2761 * The delay is between 1000-2023 usecs.
2762 */
2763 get_random_bytes(&r, 2);
2764 delay += r & 1023;
2765 set_current_state(TASK_UNINTERRUPTIBLE);
2766 schedule_timeout(usecs_to_jiffies(delay));
2767 ring_dbs(adapter);
2768}
2769
4d22de3e
DLR		 2770/*
2771 * Processes external (PHY) interrupts in process context.
2772 */
2773static void ext_intr_task(struct work_struct *work)
2774{
2775 struct adapter *adapter = container_of(work, struct adapter,
2776 ext_intr_handler_task);
bf792094
DLR		 2777 int i;
2778
2779 /* Disable link fault interrupts */
2780 for_each_port(adapter, i) {
2781 struct net_device *dev = adapter->port[i];
2782 struct port_info *p = netdev_priv(dev);
2783
2784 t3_xgm_intr_disable(adapter, i);
2785 t3_read_reg(adapter, A_XGM_INT_STATUS + p->mac.offset);
2786 }
4d22de3e 2787
bf792094 2788 /* Re-enable link fault interrupts */
4d22de3e
DLR		 2789 t3_phy_intr_handler(adapter);
2790
bf792094
DLR		 2791 for_each_port(adapter, i)
2792 t3_xgm_intr_enable(adapter, i);
2793
4d22de3e
DLR		 2794 /* Now reenable external interrupts */
2795 spin_lock_irq(&adapter->work_lock);
2796 if (adapter->slow_intr_mask) {
2797 adapter->slow_intr_mask |= F_T3DBG;
2798 t3_write_reg(adapter, A_PL_INT_CAUSE0, F_T3DBG);
2799 t3_write_reg(adapter, A_PL_INT_ENABLE0,
2800 adapter->slow_intr_mask);
2801 }
2802 spin_unlock_irq(&adapter->work_lock);
2803}
2804
2805/*
2806 * Interrupt-context handler for external (PHY) interrupts.
2807 */
2808void t3_os_ext_intr_handler(struct adapter *adapter)
2809{
2810 /*
2811 * Schedule a task to handle external interrupts as they may be slow
2812 * and we use a mutex to protect MDIO registers. We disable PHY
2813 * interrupts in the meantime and let the task reenable them when
2814 * it's done.
2815 */
2816 spin_lock(&adapter->work_lock);
2817 if (adapter->slow_intr_mask) {
2818 adapter->slow_intr_mask &= ~F_T3DBG;
2819 t3_write_reg(adapter, A_PL_INT_ENABLE0,
2820 adapter->slow_intr_mask);
2821 queue_work(cxgb3_wq, &adapter->ext_intr_handler_task);
2822 }
2823 spin_unlock(&adapter->work_lock);
2824}
2825
bf792094
DLR		 2826void t3_os_link_fault_handler(struct adapter *adapter, int port_id)
2827{
2828 struct net_device *netdev = adapter->port[port_id];
2829 struct port_info *pi = netdev_priv(netdev);
2830
2831 spin_lock(&adapter->work_lock);
2832 pi->link_fault = 1;
bf792094
DLR		 2833 spin_unlock(&adapter->work_lock);
2834}
2835
55bc3228 2836static int t3_adapter_error(struct adapter *adapter, int reset, int on_wq)
20d3fc11
DLR		 2837{
2838 int i, ret = 0;
2839
cb0bc205
DLR		 2840 if (is_offload(adapter) &&
2841 test_bit(OFFLOAD_DEVMAP_BIT, &adapter->open_device_map)) {
fa0d4c11 2842 cxgb3_event_notify(&adapter->tdev, OFFLOAD_STATUS_DOWN, 0);
cb0bc205
DLR		 2843 offload_close(&adapter->tdev);
2844 }
2845
20d3fc11
DLR		 2846 /* Stop all ports */
2847 for_each_port(adapter, i) {
2848 struct net_device *netdev = adapter->port[i];
2849
2850 if (netif_running(netdev))
55bc3228 2851 __cxgb_close(netdev, on_wq);
20d3fc11
DLR		 2852 }
2853
20d3fc11
DLR		 2854 /* Stop SGE timers */
2855 t3_stop_sge_timers(adapter);
2856
2857 adapter->flags &= ~FULL_INIT_DONE;
2858
2859 if (reset)
2860 ret = t3_reset_adapter(adapter);
2861
2862 pci_disable_device(adapter->pdev);
2863
2864 return ret;
2865}
2866
2867static int t3_reenable_adapter(struct adapter *adapter)
2868{
2869 if (pci_enable_device(adapter->pdev)) {
2870 dev_err(&adapter->pdev->dev,
2871 "Cannot re-enable PCI device after reset.\n");
2872 goto err;
2873 }
2874 pci_set_master(adapter->pdev);
2875 pci_restore_state(adapter->pdev);
ccdddf50 2876 pci_save_state(adapter->pdev);
20d3fc11
DLR		 2877
2878 /* Free sge resources */
2879 t3_free_sge_resources(adapter);
2880
2881 if (t3_replay_prep_adapter(adapter))
2882 goto err;
2883
2884 return 0;
2885err:
2886 return -1;
2887}
2888
2889static void t3_resume_ports(struct adapter *adapter)
2890{
2891 int i;
2892
2893 /* Restart the ports */
2894 for_each_port(adapter, i) {
2895 struct net_device *netdev = adapter->port[i];
2896
2897 if (netif_running(netdev)) {
2898 if (cxgb_open(netdev)) {
2899 dev_err(&adapter->pdev->dev,
2900 "can't bring device back up"
2901 " after reset\n");
2902 continue;
2903 }
2904 }
2905 }
cb0bc205
DLR		 2906
2907 if (is_offload(adapter) && !ofld_disable)
fa0d4c11 2908 cxgb3_event_notify(&adapter->tdev, OFFLOAD_STATUS_UP, 0);
20d3fc11
DLR		 2909}
2910
2911/*
2912 * processes a fatal error.
2913 * Bring the ports down, reset the chip, bring the ports back up.
2914 */
2915static void fatal_error_task(struct work_struct *work)
2916{
2917 struct adapter *adapter = container_of(work, struct adapter,
2918 fatal_error_handler_task);
2919 int err = 0;
2920
2921 rtnl_lock();
55bc3228 2922 err = t3_adapter_error(adapter, 1, 1);
20d3fc11
DLR		 2923 if (!err)
2924 err = t3_reenable_adapter(adapter);
2925 if (!err)
2926 t3_resume_ports(adapter);
2927
2928 CH_ALERT(adapter, "adapter reset %s\n", err ? "failed" : "succeeded");
2929 rtnl_unlock();
2930}
2931
4d22de3e
DLR		 2932void t3_fatal_err(struct adapter *adapter)
2933{
2934 unsigned int fw_status[4];
2935
2936 if (adapter->flags & FULL_INIT_DONE) {
2937 t3_sge_stop(adapter);
c64c2eae
DLR		 2938 t3_write_reg(adapter, A_XGM_TX_CTRL, 0);
2939 t3_write_reg(adapter, A_XGM_RX_CTRL, 0);
2940 t3_write_reg(adapter, XGM_REG(A_XGM_TX_CTRL, 1), 0);
2941 t3_write_reg(adapter, XGM_REG(A_XGM_RX_CTRL, 1), 0);
20d3fc11
DLR		 2942
2943 spin_lock(&adapter->work_lock);
4d22de3e 2944 t3_intr_disable(adapter);
20d3fc11
DLR		 2945 queue_work(cxgb3_wq, &adapter->fatal_error_handler_task);
2946 spin_unlock(&adapter->work_lock);
4d22de3e
DLR		 2947 }
2948 CH_ALERT(adapter, "encountered fatal error, operation suspended\n");
2949 if (!t3_cim_ctl_blk_read(adapter, 0xa0, 4, fw_status))
2950 CH_ALERT(adapter, "FW status: 0x%x, 0x%x, 0x%x, 0x%x\n",
2951 fw_status[0], fw_status[1],
2952 fw_status[2], fw_status[3]);
4d22de3e
DLR		 2953}
2954
91a6b50c
DLR		 2955/**
2956 * t3_io_error_detected - called when PCI error is detected
2957 * @pdev: Pointer to PCI device
2958 * @state: The current pci connection state
2959 *
2960 * This function is called after a PCI bus error affecting
2961 * this device has been detected.
2962 */
2963static pci_ers_result_t t3_io_error_detected(struct pci_dev *pdev,
2964 pci_channel_state_t state)
2965{
bc4b6b52 2966 struct adapter *adapter = pci_get_drvdata(pdev);
91a6b50c 2967
e8d19370
DLR		 2968 if (state == pci_channel_io_perm_failure)
2969 return PCI_ERS_RESULT_DISCONNECT;
2970
c661c4a2 2971 t3_adapter_error(adapter, 0, 0);
91a6b50c 2972
48c4b6db 2973 /* Request a slot reset. */
91a6b50c
DLR		 2974 return PCI_ERS_RESULT_NEED_RESET;
2975}
2976
2977/**
2978 * t3_io_slot_reset - called after the pci bus has been reset.
2979 * @pdev: Pointer to PCI device
2980 *
2981 * Restart the card from scratch, as if from a cold-boot.
2982 */
2983static pci_ers_result_t t3_io_slot_reset(struct pci_dev *pdev)
2984{
bc4b6b52 2985 struct adapter *adapter = pci_get_drvdata(pdev);
91a6b50c 2986
20d3fc11
DLR		 2987 if (!t3_reenable_adapter(adapter))
2988 return PCI_ERS_RESULT_RECOVERED;
91a6b50c 2989
48c4b6db 2990 return PCI_ERS_RESULT_DISCONNECT;
91a6b50c
DLR		 2991}
2992
2993/**
2994 * t3_io_resume - called when traffic can start flowing again.
2995 * @pdev: Pointer to PCI device
2996 *
2997 * This callback is called when the error recovery driver tells us that
2998 * its OK to resume normal operation.
2999 */
3000static void t3_io_resume(struct pci_dev *pdev)
3001{
bc4b6b52 3002 struct adapter *adapter = pci_get_drvdata(pdev);
91a6b50c 3003
68f40c10
DLR		 3004 CH_ALERT(adapter, "adapter recovering, PEX ERR 0x%x\n",
3005 t3_read_reg(adapter, A_PCIE_PEX_ERR));
3006
20d3fc11 3007 t3_resume_ports(adapter);
91a6b50c
DLR		 3008}
3009
3010static struct pci_error_handlers t3_err_handler = {
3011 .error_detected = t3_io_error_detected,
3012 .slot_reset = t3_io_slot_reset,
3013 .resume = t3_io_resume,
3014};
3015
8c263761
DLR		 3016/*
3017 * Set the number of qsets based on the number of CPUs and the number of ports,
3018 * not to exceed the number of available qsets, assuming there are enough qsets
3019 * per port in HW.
3020 */
3021static void set_nqsets(struct adapter *adap)
3022{
3023 int i, j = 0;
3024 int num_cpus = num_online_cpus();
3025 int hwports = adap->params.nports;
5cda9364 3026 int nqsets = adap->msix_nvectors - 1;
8c263761 3027
f9ee3882 3028 if (adap->params.rev > 0 && adap->flags & USING_MSIX) {
8c263761
DLR		 3029 if (hwports == 2 &&
3030 (hwports * nqsets > SGE_QSETS ||
3031 num_cpus >= nqsets / hwports))
3032 nqsets /= hwports;
3033 if (nqsets > num_cpus)
3034 nqsets = num_cpus;
3035 if (nqsets < 1 || hwports == 4)
3036 nqsets = 1;
3037 } else
3038 nqsets = 1;
3039
3040 for_each_port(adap, i) {
3041 struct port_info *pi = adap2pinfo(adap, i);
3042
3043 pi->first_qset = j;
3044 pi->nqsets = nqsets;
3045 j = pi->first_qset + nqsets;
3046
3047 dev_info(&adap->pdev->dev,
3048 "Port %d using %d queue sets.\n", i, nqsets);
3049 }
3050}
3051
4d22de3e
DLR		 3052static int __devinit cxgb_enable_msix(struct adapter *adap)
3053{
3054 struct msix_entry entries[SGE_QSETS + 1];
5cda9364 3055 int vectors;
4d22de3e
DLR		 3056 int i, err;
3057
5cda9364
DLR		 3058 vectors = ARRAY_SIZE(entries);
3059 for (i = 0; i < vectors; ++i)
4d22de3e
DLR		 3060 entries[i].entry = i;
3061
5cda9364
DLR		 3062 while ((err = pci_enable_msix(adap->pdev, entries, vectors)) > 0)
3063 vectors = err;
3064
2c2f409f
DLR		 3065 if (err < 0)
3066 pci_disable_msix(adap->pdev);
3067
3068 if (!err && vectors < (adap->params.nports + 1)) {
3069 pci_disable_msix(adap->pdev);
5cda9364 3070 err = -1;
2c2f409f 3071 }
5cda9364 3072
4d22de3e 3073 if (!err) {
5cda9364 3074 for (i = 0; i < vectors; ++i)
4d22de3e 3075 adap->msix_info[i].vec = entries[i].vector;
5cda9364
DLR		 3076 adap->msix_nvectors = vectors;
3077 }
3078
4d22de3e
DLR		 3079 return err;
3080}
3081
3082static void __devinit print_port_info(struct adapter *adap,
3083 const struct adapter_info *ai)
3084{
3085 static const char *pci_variant[] = {
3086 "PCI", "PCI-X", "PCI-X ECC", "PCI-X 266", "PCI Express"
3087 };
3088
3089 int i;
3090 char buf[80];
3091
3092 if (is_pcie(adap))
3093 snprintf(buf, sizeof(buf), "%s x%d",
3094 pci_variant[adap->params.pci.variant],
3095 adap->params.pci.width);
3096 else
3097 snprintf(buf, sizeof(buf), "%s %dMHz/%d-bit",
3098 pci_variant[adap->params.pci.variant],
3099 adap->params.pci.speed, adap->params.pci.width);
3100
3101 for_each_port(adap, i) {
3102 struct net_device *dev = adap->port[i];
3103 const struct port_info *pi = netdev_priv(dev);
3104
3105 if (!test_bit(i, &adap->registered_device_map))
3106 continue;
8ac3ba68 3107 printk(KERN_INFO "%s: %s %s %sNIC (rev %d) %s%s\n",
04497982 3108 dev->name, ai->desc, pi->phy.desc,
8ac3ba68 3109 is_offload(adap) ? "R" : "", adap->params.rev, buf,
4d22de3e
DLR		 3110 (adap->flags & USING_MSIX) ? " MSI-X" :
3111 (adap->flags & USING_MSI) ? " MSI" : "");
3112 if (adap->name == dev->name && adap->params.vpd.mclk)
167cdf5f
DLR		 3113 printk(KERN_INFO
3114 "%s: %uMB CM, %uMB PMTX, %uMB PMRX, S/N: %s\n",
4d22de3e
DLR		 3115 adap->name, t3_mc7_size(&adap->cm) >> 20,
3116 t3_mc7_size(&adap->pmtx) >> 20,
167cdf5f
DLR		 3117 t3_mc7_size(&adap->pmrx) >> 20,
3118 adap->params.vpd.sn);
4d22de3e
DLR		 3119 }
3120}
3121
dd752696
SH		 3122static const struct net_device_ops cxgb_netdev_ops = {
3123 .ndo_open = cxgb_open,
3124 .ndo_stop = cxgb_close,
43a944f3 3125 .ndo_start_xmit = t3_eth_xmit,
dd752696
SH		 3126 .ndo_get_stats = cxgb_get_stats,
3127 .ndo_validate_addr = eth_validate_addr,
3128 .ndo_set_multicast_list = cxgb_set_rxmode,
3129 .ndo_do_ioctl = cxgb_ioctl,
3130 .ndo_change_mtu = cxgb_change_mtu,
3131 .ndo_set_mac_address = cxgb_set_mac_addr,
3132 .ndo_vlan_rx_register = vlan_rx_register,
3133#ifdef CONFIG_NET_POLL_CONTROLLER
3134 .ndo_poll_controller = cxgb_netpoll,
3135#endif
3136};
3137
f14d42f3
KX		 3138static void __devinit cxgb3_init_iscsi_mac(struct net_device *dev)
3139{
3140 struct port_info *pi = netdev_priv(dev);
3141
3142 memcpy(pi->iscsic.mac_addr, dev->dev_addr, ETH_ALEN);
3143 pi->iscsic.mac_addr[3] |= 0x80;
3144}
3145
4d22de3e
DLR		 3146static int __devinit init_one(struct pci_dev *pdev,
3147 const struct pci_device_id *ent)
3148{
3149 static int version_printed;
3150
3151 int i, err, pci_using_dac = 0;
68f40c10 3152 resource_size_t mmio_start, mmio_len;
4d22de3e
DLR		 3153 const struct adapter_info *ai;
3154 struct adapter *adapter = NULL;
3155 struct port_info *pi;
3156
3157 if (!version_printed) {
3158 printk(KERN_INFO "%s - version %s\n", DRV_DESC, DRV_VERSION);
3159 ++version_printed;
3160 }
3161
3162 if (!cxgb3_wq) {
3163 cxgb3_wq = create_singlethread_workqueue(DRV_NAME);
3164 if (!cxgb3_wq) {
3165 printk(KERN_ERR DRV_NAME
3166 ": cannot initialize work queue\n");
3167 return -ENOMEM;
3168 }
3169 }
3170
7aaaaa1e 3171 err = pci_enable_device(pdev);
4d22de3e 3172 if (err) {
7aaaaa1e
KV		 3173 dev_err(&pdev->dev, "cannot enable PCI device\n");
3174 goto out;
4d22de3e
DLR		 3175 }
3176
7aaaaa1e 3177 err = pci_request_regions(pdev, DRV_NAME);
4d22de3e 3178 if (err) {
7aaaaa1e
KV		 3179 /* Just info, some other driver may have claimed the device. */
3180 dev_info(&pdev->dev, "cannot obtain PCI resources\n");
3181 goto out_disable_device;
4d22de3e
DLR		 3182 }
3183
6a35528a 3184 if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64))) {
4d22de3e 3185 pci_using_dac = 1;
6a35528a 3186 err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64));
4d22de3e
DLR		 3187 if (err) {
3188 dev_err(&pdev->dev, "unable to obtain 64-bit DMA for "
3189 "coherent allocations\n");
7aaaaa1e 3190 goto out_release_regions;
4d22de3e 3191 }
284901a9 3192 } else if ((err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32))) != 0) {
4d22de3e 3193 dev_err(&pdev->dev, "no usable DMA configuration\n");
7aaaaa1e 3194 goto out_release_regions;
4d22de3e
DLR		 3195 }
3196
3197 pci_set_master(pdev);
204e2f98 3198 pci_save_state(pdev);
4d22de3e
DLR		 3199
3200 mmio_start = pci_resource_start(pdev, 0);
3201 mmio_len = pci_resource_len(pdev, 0);
3202 ai = t3_get_adapter_info(ent->driver_data);
3203
3204 adapter = kzalloc(sizeof(*adapter), GFP_KERNEL);
3205 if (!adapter) {
3206 err = -ENOMEM;
7aaaaa1e 3207 goto out_release_regions;
4d22de3e
DLR		 3208 }
3209
74b793e1
DLR		 3210 adapter->nofail_skb =
3211 alloc_skb(sizeof(struct cpl_set_tcb_field), GFP_KERNEL);
3212 if (!adapter->nofail_skb) {
3213 dev_err(&pdev->dev, "cannot allocate nofail buffer\n");
3214 err = -ENOMEM;
3215 goto out_free_adapter;
3216 }
3217
4d22de3e
DLR		 3218 adapter->regs = ioremap_nocache(mmio_start, mmio_len);
3219 if (!adapter->regs) {
3220 dev_err(&pdev->dev, "cannot map device registers\n");
3221 err = -ENOMEM;
3222 goto out_free_adapter;
3223 }
3224
3225 adapter->pdev = pdev;
3226 adapter->name = pci_name(pdev);
3227 adapter->msg_enable = dflt_msg_enable;
3228 adapter->mmio_len = mmio_len;
3229
3230 mutex_init(&adapter->mdio_lock);
3231 spin_lock_init(&adapter->work_lock);
3232 spin_lock_init(&adapter->stats_lock);
3233
3234 INIT_LIST_HEAD(&adapter->adapter_list);
3235 INIT_WORK(&adapter->ext_intr_handler_task, ext_intr_task);
20d3fc11 3236 INIT_WORK(&adapter->fatal_error_handler_task, fatal_error_task);
e998f245
SW		 3237
3238 INIT_WORK(&adapter->db_full_task, db_full_task);
3239 INIT_WORK(&adapter->db_empty_task, db_empty_task);
3240 INIT_WORK(&adapter->db_drop_task, db_drop_task);
3241
4d22de3e
DLR		 3242 INIT_DELAYED_WORK(&adapter->adap_check_task, t3_adap_check_task);
3243
952cdf33 3244 for (i = 0; i < ai->nports0 + ai->nports1; ++i) {
4d22de3e
DLR		 3245 struct net_device *netdev;
3246
82ad3329 3247 netdev = alloc_etherdev_mq(sizeof(struct port_info), SGE_QSETS);
4d22de3e
DLR		 3248 if (!netdev) {
3249 err = -ENOMEM;
3250 goto out_free_dev;
3251 }
3252
4d22de3e
DLR		 3253 SET_NETDEV_DEV(netdev, &pdev->dev);
3254
3255 adapter->port[i] = netdev;
3256 pi = netdev_priv(netdev);
5fbf816f 3257 pi->adapter = adapter;
4d22de3e
DLR		 3258 pi->port_id = i;
3259 netif_carrier_off(netdev);
3260 netdev->irq = pdev->irq;
3261 netdev->mem_start = mmio_start;
3262 netdev->mem_end = mmio_start + mmio_len - 1;
d2fe2755
MM		 3263 netdev->hw_features = NETIF_F_SG | NETIF_F_IP_CSUM |
3264 NETIF_F_TSO | NETIF_F_RXCSUM;
3265 netdev->features |= netdev->hw_features |
3266 NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX;
4d22de3e
DLR		 3267 if (pci_using_dac)
3268 netdev->features |= NETIF_F_HIGHDMA;
3269
dd752696 3270 netdev->netdev_ops = &cxgb_netdev_ops;
4d22de3e
DLR		 3271 SET_ETHTOOL_OPS(netdev, &cxgb_ethtool_ops);
3272 }
3273
5fbf816f 3274 pci_set_drvdata(pdev, adapter);
4d22de3e
DLR		 3275 if (t3_prep_adapter(adapter, ai, 1) < 0) {
3276 err = -ENODEV;
3277 goto out_free_dev;
3278 }
2eab17ab 3279
4d22de3e
DLR		 3280 /*
3281 * The card is now ready to go. If any errors occur during device
3282 * registration we do not fail the whole card but rather proceed only
3283 * with the ports we manage to register successfully. However we must
3284 * register at least one net device.
3285 */
3286 for_each_port(adapter, i) {
3287 err = register_netdev(adapter->port[i]);
3288 if (err)
3289 dev_warn(&pdev->dev,
3290 "cannot register net device %s, skipping\n",
3291 adapter->port[i]->name);
3292 else {
3293 /*
3294 * Change the name we use for messages to the name of
3295 * the first successfully registered interface.
3296 */
3297 if (!adapter->registered_device_map)
3298 adapter->name = adapter->port[i]->name;
3299
3300 __set_bit(i, &adapter->registered_device_map);
3301 }
3302 }
3303 if (!adapter->registered_device_map) {
3304 dev_err(&pdev->dev, "could not register any net devices\n");
3305 goto out_free_dev;
3306 }
3307
f14d42f3
KX		 3308 for_each_port(adapter, i)
3309 cxgb3_init_iscsi_mac(adapter->port[i]);
3310
4d22de3e
DLR		 3311 /* Driver's ready. Reflect it on LEDs */
3312 t3_led_ready(adapter);
3313
3314 if (is_offload(adapter)) {
3315 __set_bit(OFFLOAD_DEVMAP_BIT, &adapter->registered_device_map);
3316 cxgb3_adapter_ofld(adapter);
3317 }
3318
3319 /* See what interrupts we'll be using */
3320 if (msi > 1 && cxgb_enable_msix(adapter) == 0)
3321 adapter->flags |= USING_MSIX;
3322 else if (msi > 0 && pci_enable_msi(pdev) == 0)
3323 adapter->flags |= USING_MSI;
3324
8c263761
DLR		 3325 set_nqsets(adapter);
3326
0ee8d33c 3327 err = sysfs_create_group(&adapter->port[0]->dev.kobj,
4d22de3e
DLR		 3328 &cxgb3_attr_group);
3329
3330 print_port_info(adapter, ai);
3331 return 0;
3332
3333out_free_dev:
3334 iounmap(adapter->regs);
952cdf33 3335 for (i = ai->nports0 + ai->nports1 - 1; i >= 0; --i)
4d22de3e
DLR		 3336 if (adapter->port[i])
3337 free_netdev(adapter->port[i]);
3338
3339out_free_adapter:
3340 kfree(adapter);
3341
4d22de3e
DLR		 3342out_release_regions:
3343 pci_release_regions(pdev);
7aaaaa1e
KV		 3344out_disable_device:
3345 pci_disable_device(pdev);
4d22de3e 3346 pci_set_drvdata(pdev, NULL);
7aaaaa1e 3347out:
4d22de3e
DLR		 3348 return err;
3349}
3350
3351static void __devexit remove_one(struct pci_dev *pdev)
3352{
5fbf816f 3353 struct adapter *adapter = pci_get_drvdata(pdev);
4d22de3e 3354
5fbf816f 3355 if (adapter) {
4d22de3e 3356 int i;
4d22de3e
DLR		 3357
3358 t3_sge_stop(adapter);
0ee8d33c 3359 sysfs_remove_group(&adapter->port[0]->dev.kobj,
4d22de3e
DLR		 3360 &cxgb3_attr_group);
3361
4d22de3e
DLR		 3362 if (is_offload(adapter)) {
3363 cxgb3_adapter_unofld(adapter);
3364 if (test_bit(OFFLOAD_DEVMAP_BIT,
3365 &adapter->open_device_map))
3366 offload_close(&adapter->tdev);
3367 }
3368
67d92ab7
DLR		 3369 for_each_port(adapter, i)
3370 if (test_bit(i, &adapter->registered_device_map))
3371 unregister_netdev(adapter->port[i]);
3372
0ca41c04 3373 t3_stop_sge_timers(adapter);
4d22de3e
DLR		 3374 t3_free_sge_resources(adapter);
3375 cxgb_disable_msi(adapter);
3376
4d22de3e
DLR		 3377 for_each_port(adapter, i)
3378 if (adapter->port[i])
3379 free_netdev(adapter->port[i]);
3380
3381 iounmap(adapter->regs);
74b793e1
DLR		 3382 if (adapter->nofail_skb)
3383 kfree_skb(adapter->nofail_skb);
4d22de3e
DLR		 3384 kfree(adapter);
3385 pci_release_regions(pdev);
3386 pci_disable_device(pdev);
3387 pci_set_drvdata(pdev, NULL);
3388 }
3389}
3390
3391static struct pci_driver driver = {
3392 .name = DRV_NAME,
3393 .id_table = cxgb3_pci_tbl,
3394 .probe = init_one,
3395 .remove = __devexit_p(remove_one),
91a6b50c 3396 .err_handler = &t3_err_handler,
4d22de3e
DLR		 3397};
3398
3399static int __init cxgb3_init_module(void)
3400{
3401 int ret;
3402
3403 cxgb3_offload_init();
3404
3405 ret = pci_register_driver(&driver);
3406 return ret;
3407}
3408
3409static void __exit cxgb3_cleanup_module(void)
3410{
3411 pci_unregister_driver(&driver);
3412 if (cxgb3_wq)
3413 destroy_workqueue(cxgb3_wq);
3414}
3415
3416module_init(cxgb3_init_module);
3417module_exit(cxgb3_cleanup_module);
Linux 6.x block layer and io_uring tree(s)