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Christoph Lameter8199d3a2005-03-30 13:34:31 -08001/*****************************************************************************
2 * *
3 * File: cxgb2.c *
Scott Bardone559fb512005-06-23 01:40:19 -04004 * $Revision: 1.25 $ *
5 * $Date: 2005/06/22 00:43:25 $ *
Christoph Lameter8199d3a2005-03-30 13:34:31 -08006 * Description: *
7 * Chelsio 10Gb Ethernet Driver. *
8 * *
9 * This program is free software; you can redistribute it and/or modify *
10 * it under the terms of the GNU General Public License, version 2, as *
11 * published by the Free Software Foundation. *
12 * *
13 * You should have received a copy of the GNU General Public License along *
14 * with this program; if not, write to the Free Software Foundation, Inc., *
15 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
16 * *
17 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED *
18 * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF *
19 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. *
20 * *
21 * http://www.chelsio.com *
22 * *
23 * Copyright (c) 2003 - 2005 Chelsio Communications, Inc. *
24 * All rights reserved. *
25 * *
26 * Maintainers: maintainers@chelsio.com *
27 * *
28 * Authors: Dimitrios Michailidis <dm@chelsio.com> *
29 * Tina Yang <tainay@chelsio.com> *
30 * Felix Marti <felix@chelsio.com> *
31 * Scott Bardone <sbardone@chelsio.com> *
32 * Kurt Ottaway <kottaway@chelsio.com> *
33 * Frank DiMambro <frank@chelsio.com> *
34 * *
35 * History: *
36 * *
37 ****************************************************************************/
38
39#include "common.h"
Christoph Lameter8199d3a2005-03-30 13:34:31 -080040#include <linux/module.h>
41#include <linux/init.h>
42#include <linux/pci.h>
43#include <linux/netdevice.h>
44#include <linux/etherdevice.h>
45#include <linux/if_vlan.h>
46#include <linux/mii.h>
47#include <linux/sockios.h>
Scott Bardone559fb512005-06-23 01:40:19 -040048#include <linux/dma-mapping.h>
Christoph Lameter8199d3a2005-03-30 13:34:31 -080049#include <asm/uaccess.h>
50
Christoph Lameter8199d3a2005-03-30 13:34:31 -080051#include "cpl5_cmd.h"
52#include "regs.h"
53#include "gmac.h"
54#include "cphy.h"
55#include "sge.h"
Stephen Hemmingerf1d3d382006-12-01 16:36:16 -080056#include "tp.h"
Christoph Lameter8199d3a2005-03-30 13:34:31 -080057#include "espi.h"
Stephen Hemmingerf1d3d382006-12-01 16:36:16 -080058#include "elmer0.h"
Christoph Lameter8199d3a2005-03-30 13:34:31 -080059
Scott Bardone559fb512005-06-23 01:40:19 -040060#include <linux/workqueue.h>
61
Christoph Lameter8199d3a2005-03-30 13:34:31 -080062static inline void schedule_mac_stats_update(struct adapter *ap, int secs)
63{
64 schedule_delayed_work(&ap->stats_update_task, secs * HZ);
65}
66
67static inline void cancel_mac_stats_update(struct adapter *ap)
68{
69 cancel_delayed_work(&ap->stats_update_task);
70}
Christoph Lameter8199d3a2005-03-30 13:34:31 -080071
Francois Romieu356bd142006-12-11 23:47:00 +010072#define MAX_CMDQ_ENTRIES 16384
73#define MAX_CMDQ1_ENTRIES 1024
74#define MAX_RX_BUFFERS 16384
75#define MAX_RX_JUMBO_BUFFERS 16384
Christoph Lameter8199d3a2005-03-30 13:34:31 -080076#define MAX_TX_BUFFERS_HIGH 16384U
77#define MAX_TX_BUFFERS_LOW 1536U
Stephen Hemmingerf1d3d382006-12-01 16:36:16 -080078#define MAX_TX_BUFFERS 1460U
Francois Romieu356bd142006-12-11 23:47:00 +010079#define MIN_FL_ENTRIES 32
Christoph Lameter8199d3a2005-03-30 13:34:31 -080080
Christoph Lameter8199d3a2005-03-30 13:34:31 -080081#define DFLT_MSG_ENABLE (NETIF_MSG_DRV | NETIF_MSG_PROBE | NETIF_MSG_LINK | \
82 NETIF_MSG_TIMER | NETIF_MSG_IFDOWN | NETIF_MSG_IFUP |\
83 NETIF_MSG_RX_ERR | NETIF_MSG_TX_ERR)
84
85/*
86 * The EEPROM is actually bigger but only the first few bytes are used so we
87 * only report those.
88 */
89#define EEPROM_SIZE 32
90
Scott Bardone559fb512005-06-23 01:40:19 -040091MODULE_DESCRIPTION(DRV_DESCRIPTION);
Christoph Lameter8199d3a2005-03-30 13:34:31 -080092MODULE_AUTHOR("Chelsio Communications");
93MODULE_LICENSE("GPL");
Christoph Lameter8199d3a2005-03-30 13:34:31 -080094
95static int dflt_msg_enable = DFLT_MSG_ENABLE;
96
Rusty Russell8d3b33f2006-03-25 03:07:05 -080097module_param(dflt_msg_enable, int, 0);
Stephen Hemmingerf1d3d382006-12-01 16:36:16 -080098MODULE_PARM_DESC(dflt_msg_enable, "Chelsio T1 default message enable bitmap");
Christoph Lameter8199d3a2005-03-30 13:34:31 -080099
Stephen Hemmingerf1d3d382006-12-01 16:36:16 -0800100#define HCLOCK 0x0
101#define LCLOCK 0x1
102
103/* T1 cards powersave mode */
104static int t1_clock(struct adapter *adapter, int mode);
105static int t1powersave = 1; /* HW default is powersave mode. */
106
107module_param(t1powersave, int, 0);
108MODULE_PARM_DESC(t1powersave, "Enable/Disable T1 powersaving mode");
Christoph Lameter8199d3a2005-03-30 13:34:31 -0800109
Stephen Hemminger325dde42006-12-01 16:36:20 -0800110static int disable_msi = 0;
111module_param(disable_msi, int, 0);
112MODULE_PARM_DESC(disable_msi, "Disable Message Signaled Interrupt (MSI)");
Christoph Lameter8199d3a2005-03-30 13:34:31 -0800113
114static const char pci_speed[][4] = {
115 "33", "66", "100", "133"
116};
117
118/*
119 * Setup MAC to receive the types of packets we want.
120 */
121static void t1_set_rxmode(struct net_device *dev)
122{
123 struct adapter *adapter = dev->priv;
124 struct cmac *mac = adapter->port[dev->if_port].mac;
125 struct t1_rx_mode rm;
126
127 rm.dev = dev;
128 rm.idx = 0;
129 rm.list = dev->mc_list;
130 mac->ops->set_rx_mode(mac, &rm);
131}
132
133static void link_report(struct port_info *p)
134{
135 if (!netif_carrier_ok(p->dev))
Stephen Hemminger20578152006-11-17 11:21:22 -0800136 printk(KERN_INFO "%s: link down\n", p->dev->name);
Christoph Lameter8199d3a2005-03-30 13:34:31 -0800137 else {
Scott Bardone559fb512005-06-23 01:40:19 -0400138 const char *s = "10Mbps";
Christoph Lameter8199d3a2005-03-30 13:34:31 -0800139
140 switch (p->link_config.speed) {
Scott Bardone559fb512005-06-23 01:40:19 -0400141 case SPEED_10000: s = "10Gbps"; break;
142 case SPEED_1000: s = "1000Mbps"; break;
143 case SPEED_100: s = "100Mbps"; break;
Christoph Lameter8199d3a2005-03-30 13:34:31 -0800144 }
145
Francois Romieu356bd142006-12-11 23:47:00 +0100146 printk(KERN_INFO "%s: link up, %s, %s-duplex\n",
Christoph Lameter8199d3a2005-03-30 13:34:31 -0800147 p->dev->name, s,
148 p->link_config.duplex == DUPLEX_FULL ? "full" : "half");
149 }
150}
151
Stephen Hemmingerf1d3d382006-12-01 16:36:16 -0800152void t1_link_negotiated(struct adapter *adapter, int port_id, int link_stat,
Christoph Lameter8199d3a2005-03-30 13:34:31 -0800153 int speed, int duplex, int pause)
154{
155 struct port_info *p = &adapter->port[port_id];
156
157 if (link_stat != netif_carrier_ok(p->dev)) {
158 if (link_stat)
159 netif_carrier_on(p->dev);
160 else
161 netif_carrier_off(p->dev);
162 link_report(p);
163
Stephen Hemmingerf1d3d382006-12-01 16:36:16 -0800164 /* multi-ports: inform toe */
165 if ((speed > 0) && (adapter->params.nports > 1)) {
166 unsigned int sched_speed = 10;
167 switch (speed) {
168 case SPEED_1000:
169 sched_speed = 1000;
170 break;
171 case SPEED_100:
172 sched_speed = 100;
173 break;
174 case SPEED_10:
175 sched_speed = 10;
176 break;
177 }
178 t1_sched_update_parms(adapter->sge, port_id, 0, sched_speed);
179 }
Christoph Lameter8199d3a2005-03-30 13:34:31 -0800180 }
181}
182
183static void link_start(struct port_info *p)
184{
185 struct cmac *mac = p->mac;
186
187 mac->ops->reset(mac);
188 if (mac->ops->macaddress_set)
189 mac->ops->macaddress_set(mac, p->dev->dev_addr);
190 t1_set_rxmode(p->dev);
191 t1_link_start(p->phy, mac, &p->link_config);
192 mac->ops->enable(mac, MAC_DIRECTION_RX | MAC_DIRECTION_TX);
193}
194
195static void enable_hw_csum(struct adapter *adapter)
196{
197 if (adapter->flags & TSO_CAPABLE)
Stephen Hemmingerf1d3d382006-12-01 16:36:16 -0800198 t1_tp_set_ip_checksum_offload(adapter->tp, 1); /* for TSO only */
199 if (adapter->flags & UDP_CSUM_CAPABLE)
200 t1_tp_set_udp_checksum_offload(adapter->tp, 1);
201 t1_tp_set_tcp_checksum_offload(adapter->tp, 1);
Christoph Lameter8199d3a2005-03-30 13:34:31 -0800202}
203
204/*
205 * Things to do upon first use of a card.
206 * This must run with the rtnl lock held.
207 */
208static int cxgb_up(struct adapter *adapter)
209{
210 int err = 0;
211
212 if (!(adapter->flags & FULL_INIT_DONE)) {
213 err = t1_init_hw_modules(adapter);
214 if (err)
215 goto out_err;
216
217 enable_hw_csum(adapter);
218 adapter->flags |= FULL_INIT_DONE;
219 }
220
221 t1_interrupts_clear(adapter);
Stephen Hemminger325dde42006-12-01 16:36:20 -0800222
Stephen Hemminger7fe26a62006-12-08 11:08:33 -0800223 adapter->params.has_msi = !disable_msi && !pci_enable_msi(adapter->pdev);
224 err = request_irq(adapter->pdev->irq, t1_interrupt,
Stephen Hemminger325dde42006-12-01 16:36:20 -0800225 adapter->params.has_msi ? 0 : IRQF_SHARED,
226 adapter->name, adapter);
227 if (err) {
228 if (adapter->params.has_msi)
229 pci_disable_msi(adapter->pdev);
230
Christoph Lameter8199d3a2005-03-30 13:34:31 -0800231 goto out_err;
Scott Bardone559fb512005-06-23 01:40:19 -0400232 }
Stephen Hemminger325dde42006-12-01 16:36:20 -0800233
Christoph Lameter8199d3a2005-03-30 13:34:31 -0800234 t1_sge_start(adapter->sge);
235 t1_interrupts_enable(adapter);
Francois Romieu356bd142006-12-11 23:47:00 +0100236out_err:
Christoph Lameter8199d3a2005-03-30 13:34:31 -0800237 return err;
238}
239
240/*
241 * Release resources when all the ports have been stopped.
242 */
243static void cxgb_down(struct adapter *adapter)
244{
245 t1_sge_stop(adapter->sge);
246 t1_interrupts_disable(adapter);
247 free_irq(adapter->pdev->irq, adapter);
Stephen Hemminger325dde42006-12-01 16:36:20 -0800248 if (adapter->params.has_msi)
249 pci_disable_msi(adapter->pdev);
Christoph Lameter8199d3a2005-03-30 13:34:31 -0800250}
251
252static int cxgb_open(struct net_device *dev)
253{
254 int err;
255 struct adapter *adapter = dev->priv;
256 int other_ports = adapter->open_device_map & PORT_MASK;
257
Stephen Hemmingerbea33482007-10-03 16:41:36 -0700258 napi_enable(&adapter->napi);
259 if (!adapter->open_device_map && (err = cxgb_up(adapter)) < 0) {
260 napi_disable(&adapter->napi);
Christoph Lameter8199d3a2005-03-30 13:34:31 -0800261 return err;
Stephen Hemmingerbea33482007-10-03 16:41:36 -0700262 }
Christoph Lameter8199d3a2005-03-30 13:34:31 -0800263
264 __set_bit(dev->if_port, &adapter->open_device_map);
265 link_start(&adapter->port[dev->if_port]);
266 netif_start_queue(dev);
267 if (!other_ports && adapter->params.stats_update_period)
268 schedule_mac_stats_update(adapter,
269 adapter->params.stats_update_period);
270 return 0;
271}
272
273static int cxgb_close(struct net_device *dev)
274{
275 struct adapter *adapter = dev->priv;
276 struct port_info *p = &adapter->port[dev->if_port];
277 struct cmac *mac = p->mac;
278
279 netif_stop_queue(dev);
Stephen Hemmingerbea33482007-10-03 16:41:36 -0700280 napi_disable(&adapter->napi);
Christoph Lameter8199d3a2005-03-30 13:34:31 -0800281 mac->ops->disable(mac, MAC_DIRECTION_TX | MAC_DIRECTION_RX);
282 netif_carrier_off(dev);
283
284 clear_bit(dev->if_port, &adapter->open_device_map);
285 if (adapter->params.stats_update_period &&
286 !(adapter->open_device_map & PORT_MASK)) {
287 /* Stop statistics accumulation. */
288 smp_mb__after_clear_bit();
289 spin_lock(&adapter->work_lock); /* sync with update task */
290 spin_unlock(&adapter->work_lock);
291 cancel_mac_stats_update(adapter);
292 }
293
294 if (!adapter->open_device_map)
295 cxgb_down(adapter);
296 return 0;
297}
298
299static struct net_device_stats *t1_get_stats(struct net_device *dev)
300{
301 struct adapter *adapter = dev->priv;
302 struct port_info *p = &adapter->port[dev->if_port];
303 struct net_device_stats *ns = &p->netstats;
304 const struct cmac_statistics *pstats;
305
306 /* Do a full update of the MAC stats */
307 pstats = p->mac->ops->statistics_update(p->mac,
Stephen Hemminger20578152006-11-17 11:21:22 -0800308 MAC_STATS_UPDATE_FULL);
Christoph Lameter8199d3a2005-03-30 13:34:31 -0800309
310 ns->tx_packets = pstats->TxUnicastFramesOK +
311 pstats->TxMulticastFramesOK + pstats->TxBroadcastFramesOK;
312
313 ns->rx_packets = pstats->RxUnicastFramesOK +
314 pstats->RxMulticastFramesOK + pstats->RxBroadcastFramesOK;
315
316 ns->tx_bytes = pstats->TxOctetsOK;
317 ns->rx_bytes = pstats->RxOctetsOK;
318
319 ns->tx_errors = pstats->TxLateCollisions + pstats->TxLengthErrors +
320 pstats->TxUnderrun + pstats->TxFramesAbortedDueToXSCollisions;
321 ns->rx_errors = pstats->RxDataErrors + pstats->RxJabberErrors +
322 pstats->RxFCSErrors + pstats->RxAlignErrors +
323 pstats->RxSequenceErrors + pstats->RxFrameTooLongErrors +
324 pstats->RxSymbolErrors + pstats->RxRuntErrors;
325
326 ns->multicast = pstats->RxMulticastFramesOK;
327 ns->collisions = pstats->TxTotalCollisions;
328
329 /* detailed rx_errors */
330 ns->rx_length_errors = pstats->RxFrameTooLongErrors +
331 pstats->RxJabberErrors;
332 ns->rx_over_errors = 0;
333 ns->rx_crc_errors = pstats->RxFCSErrors;
334 ns->rx_frame_errors = pstats->RxAlignErrors;
335 ns->rx_fifo_errors = 0;
336 ns->rx_missed_errors = 0;
337
338 /* detailed tx_errors */
339 ns->tx_aborted_errors = pstats->TxFramesAbortedDueToXSCollisions;
340 ns->tx_carrier_errors = 0;
341 ns->tx_fifo_errors = pstats->TxUnderrun;
342 ns->tx_heartbeat_errors = 0;
343 ns->tx_window_errors = pstats->TxLateCollisions;
344 return ns;
345}
346
347static u32 get_msglevel(struct net_device *dev)
348{
349 struct adapter *adapter = dev->priv;
350
351 return adapter->msg_enable;
352}
353
354static void set_msglevel(struct net_device *dev, u32 val)
355{
356 struct adapter *adapter = dev->priv;
357
358 adapter->msg_enable = val;
359}
360
361static char stats_strings[][ETH_GSTRING_LEN] = {
Stephen Hemminger20578152006-11-17 11:21:22 -0800362 "TxOctetsOK",
363 "TxOctetsBad",
364 "TxUnicastFramesOK",
365 "TxMulticastFramesOK",
366 "TxBroadcastFramesOK",
367 "TxPauseFrames",
368 "TxFramesWithDeferredXmissions",
369 "TxLateCollisions",
370 "TxTotalCollisions",
371 "TxFramesAbortedDueToXSCollisions",
372 "TxUnderrun",
373 "TxLengthErrors",
374 "TxInternalMACXmitError",
375 "TxFramesWithExcessiveDeferral",
376 "TxFCSErrors",
Divy Le Raye0348b92007-11-27 13:30:20 -0800377 "TxJumboFramesOk",
378 "TxJumboOctetsOk",
379
Stephen Hemminger20578152006-11-17 11:21:22 -0800380 "RxOctetsOK",
381 "RxOctetsBad",
382 "RxUnicastFramesOK",
383 "RxMulticastFramesOK",
384 "RxBroadcastFramesOK",
385 "RxPauseFrames",
386 "RxFCSErrors",
387 "RxAlignErrors",
388 "RxSymbolErrors",
389 "RxDataErrors",
390 "RxSequenceErrors",
391 "RxRuntErrors",
392 "RxJabberErrors",
393 "RxInternalMACRcvError",
394 "RxInRangeLengthErrors",
395 "RxOutOfRangeLengthField",
396 "RxFrameTooLongErrors",
Divy Le Raye0348b92007-11-27 13:30:20 -0800397 "RxJumboFramesOk",
398 "RxJumboOctetsOk",
Scott Bardone559fb512005-06-23 01:40:19 -0400399
Stephen Hemminger56f643c2006-12-01 16:36:21 -0800400 /* Port stats */
Scott Bardone559fb512005-06-23 01:40:19 -0400401 "RxCsumGood",
402 "TxCsumOffload",
Stephen Hemminger56f643c2006-12-01 16:36:21 -0800403 "TxTso",
404 "RxVlan",
405 "TxVlan",
Divy Le Ray7832ee02007-11-27 13:30:09 -0800406 "TxNeedHeadroom",
407
Stephen Hemminger56f643c2006-12-01 16:36:21 -0800408 /* Interrupt stats */
409 "rx drops",
410 "pure_rsps",
411 "unhandled irqs",
Scott Bardone559fb512005-06-23 01:40:19 -0400412 "respQ_empty",
413 "respQ_overflow",
414 "freelistQ_empty",
415 "pkt_too_big",
416 "pkt_mismatch",
417 "cmdQ_full0",
418 "cmdQ_full1",
Stephen Hemminger20578152006-11-17 11:21:22 -0800419
Scott Bardone559fb512005-06-23 01:40:19 -0400420 "espi_DIP2ParityErr",
421 "espi_DIP4Err",
422 "espi_RxDrops",
423 "espi_TxDrops",
424 "espi_RxOvfl",
425 "espi_ParityErr"
Christoph Lameter8199d3a2005-03-30 13:34:31 -0800426};
Stephen Hemminger20578152006-11-17 11:21:22 -0800427
Scott Bardone559fb512005-06-23 01:40:19 -0400428#define T2_REGMAP_SIZE (3 * 1024)
429
430static int get_regs_len(struct net_device *dev)
431{
432 return T2_REGMAP_SIZE;
433}
Christoph Lameter8199d3a2005-03-30 13:34:31 -0800434
435static void get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
436{
437 struct adapter *adapter = dev->priv;
438
Scott Bardone559fb512005-06-23 01:40:19 -0400439 strcpy(info->driver, DRV_NAME);
440 strcpy(info->version, DRV_VERSION);
Christoph Lameter8199d3a2005-03-30 13:34:31 -0800441 strcpy(info->fw_version, "N/A");
442 strcpy(info->bus_info, pci_name(adapter->pdev));
443}
444
Jeff Garzikb9f2c042007-10-03 18:07:32 -0700445static int get_sset_count(struct net_device *dev, int sset)
Christoph Lameter8199d3a2005-03-30 13:34:31 -0800446{
Jeff Garzikb9f2c042007-10-03 18:07:32 -0700447 switch (sset) {
448 case ETH_SS_STATS:
449 return ARRAY_SIZE(stats_strings);
450 default:
451 return -EOPNOTSUPP;
452 }
Christoph Lameter8199d3a2005-03-30 13:34:31 -0800453}
454
455static void get_strings(struct net_device *dev, u32 stringset, u8 *data)
456{
457 if (stringset == ETH_SS_STATS)
458 memcpy(data, stats_strings, sizeof(stats_strings));
459}
460
461static void get_stats(struct net_device *dev, struct ethtool_stats *stats,
462 u64 *data)
463{
464 struct adapter *adapter = dev->priv;
465 struct cmac *mac = adapter->port[dev->if_port].mac;
466 const struct cmac_statistics *s;
Scott Bardone559fb512005-06-23 01:40:19 -0400467 const struct sge_intr_counts *t;
Stephen Hemminger56f643c2006-12-01 16:36:21 -0800468 struct sge_port_stats ss;
Christoph Lameter8199d3a2005-03-30 13:34:31 -0800469
470 s = mac->ops->statistics_update(mac, MAC_STATS_UPDATE_FULL);
Scott Bardone559fb512005-06-23 01:40:19 -0400471 t = t1_sge_get_intr_counts(adapter->sge);
Divy Le Raye0348b92007-11-27 13:30:20 -0800472 t1_sge_get_port_stats(adapter->sge, dev->if_port, &ss);
473
474 *data++ = s->TxOctetsOK;
475 *data++ = s->TxOctetsBad;
476 *data++ = s->TxUnicastFramesOK;
477 *data++ = s->TxMulticastFramesOK;
478 *data++ = s->TxBroadcastFramesOK;
479 *data++ = s->TxPauseFrames;
480 *data++ = s->TxFramesWithDeferredXmissions;
481 *data++ = s->TxLateCollisions;
482 *data++ = s->TxTotalCollisions;
483 *data++ = s->TxFramesAbortedDueToXSCollisions;
484 *data++ = s->TxUnderrun;
485 *data++ = s->TxLengthErrors;
486 *data++ = s->TxInternalMACXmitError;
487 *data++ = s->TxFramesWithExcessiveDeferral;
488 *data++ = s->TxFCSErrors;
489 *data++ = s->TxJumboFramesOK;
490 *data++ = s->TxJumboOctetsOK;
491
492 *data++ = s->RxOctetsOK;
493 *data++ = s->RxOctetsBad;
494 *data++ = s->RxUnicastFramesOK;
495 *data++ = s->RxMulticastFramesOK;
496 *data++ = s->RxBroadcastFramesOK;
497 *data++ = s->RxPauseFrames;
498 *data++ = s->RxFCSErrors;
499 *data++ = s->RxAlignErrors;
500 *data++ = s->RxSymbolErrors;
501 *data++ = s->RxDataErrors;
502 *data++ = s->RxSequenceErrors;
503 *data++ = s->RxRuntErrors;
504 *data++ = s->RxJabberErrors;
505 *data++ = s->RxInternalMACRcvError;
506 *data++ = s->RxInRangeLengthErrors;
507 *data++ = s->RxOutOfRangeLengthField;
508 *data++ = s->RxFrameTooLongErrors;
509 *data++ = s->RxJumboFramesOK;
510 *data++ = s->RxJumboOctetsOK;
511
512 *data++ = ss.rx_cso_good;
513 *data++ = ss.tx_cso;
514 *data++ = ss.tx_tso;
515 *data++ = ss.vlan_xtract;
516 *data++ = ss.vlan_insert;
517 *data++ = ss.tx_need_hdrroom;
518
Stephen Hemminger56f643c2006-12-01 16:36:21 -0800519 *data++ = t->rx_drops;
520 *data++ = t->pure_rsps;
521 *data++ = t->unhandled_irqs;
522 *data++ = t->respQ_empty;
523 *data++ = t->respQ_overflow;
524 *data++ = t->freelistQ_empty;
525 *data++ = t->pkt_too_big;
526 *data++ = t->pkt_mismatch;
527 *data++ = t->cmdQ_full[0];
528 *data++ = t->cmdQ_full[1];
Christoph Lameter8199d3a2005-03-30 13:34:31 -0800529
Stephen Hemmingerf1d3d382006-12-01 16:36:16 -0800530 if (adapter->espi) {
531 const struct espi_intr_counts *e;
Christoph Lameter8199d3a2005-03-30 13:34:31 -0800532
Stephen Hemmingerf1d3d382006-12-01 16:36:16 -0800533 e = t1_espi_get_intr_counts(adapter->espi);
Stephen Hemminger56f643c2006-12-01 16:36:21 -0800534 *data++ = e->DIP2_parity_err;
535 *data++ = e->DIP4_err;
536 *data++ = e->rx_drops;
537 *data++ = e->tx_drops;
538 *data++ = e->rx_ovflw;
539 *data++ = e->parity_err;
Stephen Hemmingerf1d3d382006-12-01 16:36:16 -0800540 }
Scott Bardone559fb512005-06-23 01:40:19 -0400541}
542
543static inline void reg_block_dump(struct adapter *ap, void *buf,
544 unsigned int start, unsigned int end)
545{
546 u32 *p = buf + start;
547
548 for ( ; start <= end; start += sizeof(u32))
549 *p++ = readl(ap->regs + start);
550}
551
552static void get_regs(struct net_device *dev, struct ethtool_regs *regs,
553 void *buf)
554{
555 struct adapter *ap = dev->priv;
556
557 /*
558 * Version scheme: bits 0..9: chip version, bits 10..15: chip revision
559 */
560 regs->version = 2;
561
562 memset(buf, 0, T2_REGMAP_SIZE);
563 reg_block_dump(ap, buf, 0, A_SG_RESPACCUTIMER);
Stephen Hemmingerf1d3d382006-12-01 16:36:16 -0800564 reg_block_dump(ap, buf, A_MC3_CFG, A_MC4_INT_CAUSE);
565 reg_block_dump(ap, buf, A_TPI_ADDR, A_TPI_PAR);
566 reg_block_dump(ap, buf, A_TP_IN_CONFIG, A_TP_TX_DROP_COUNT);
567 reg_block_dump(ap, buf, A_RAT_ROUTE_CONTROL, A_RAT_INTR_CAUSE);
568 reg_block_dump(ap, buf, A_CSPI_RX_AE_WM, A_CSPI_INTR_ENABLE);
569 reg_block_dump(ap, buf, A_ESPI_SCH_TOKEN0, A_ESPI_GOSTAT);
570 reg_block_dump(ap, buf, A_ULP_ULIMIT, A_ULP_PIO_CTRL);
571 reg_block_dump(ap, buf, A_PL_ENABLE, A_PL_CAUSE);
572 reg_block_dump(ap, buf, A_MC5_CONFIG, A_MC5_MASK_WRITE_CMD);
Christoph Lameter8199d3a2005-03-30 13:34:31 -0800573}
574
575static int get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
576{
577 struct adapter *adapter = dev->priv;
578 struct port_info *p = &adapter->port[dev->if_port];
579
580 cmd->supported = p->link_config.supported;
581 cmd->advertising = p->link_config.advertising;
582
583 if (netif_carrier_ok(dev)) {
584 cmd->speed = p->link_config.speed;
585 cmd->duplex = p->link_config.duplex;
586 } else {
587 cmd->speed = -1;
588 cmd->duplex = -1;
589 }
590
Stephen Hemminger20578152006-11-17 11:21:22 -0800591 cmd->port = (cmd->supported & SUPPORTED_TP) ? PORT_TP : PORT_FIBRE;
592 cmd->phy_address = p->phy->addr;
593 cmd->transceiver = XCVR_EXTERNAL;
594 cmd->autoneg = p->link_config.autoneg;
595 cmd->maxtxpkt = 0;
596 cmd->maxrxpkt = 0;
Christoph Lameter8199d3a2005-03-30 13:34:31 -0800597 return 0;
598}
599
600static int speed_duplex_to_caps(int speed, int duplex)
601{
602 int cap = 0;
603
604 switch (speed) {
605 case SPEED_10:
606 if (duplex == DUPLEX_FULL)
607 cap = SUPPORTED_10baseT_Full;
608 else
609 cap = SUPPORTED_10baseT_Half;
610 break;
611 case SPEED_100:
612 if (duplex == DUPLEX_FULL)
613 cap = SUPPORTED_100baseT_Full;
614 else
615 cap = SUPPORTED_100baseT_Half;
616 break;
617 case SPEED_1000:
618 if (duplex == DUPLEX_FULL)
619 cap = SUPPORTED_1000baseT_Full;
620 else
621 cap = SUPPORTED_1000baseT_Half;
622 break;
623 case SPEED_10000:
624 if (duplex == DUPLEX_FULL)
625 cap = SUPPORTED_10000baseT_Full;
626 }
627 return cap;
628}
629
630#define ADVERTISED_MASK (ADVERTISED_10baseT_Half | ADVERTISED_10baseT_Full | \
631 ADVERTISED_100baseT_Half | ADVERTISED_100baseT_Full | \
632 ADVERTISED_1000baseT_Half | ADVERTISED_1000baseT_Full | \
633 ADVERTISED_10000baseT_Full)
634
635static int set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
636{
637 struct adapter *adapter = dev->priv;
638 struct port_info *p = &adapter->port[dev->if_port];
639 struct link_config *lc = &p->link_config;
640
641 if (!(lc->supported & SUPPORTED_Autoneg))
Scott Bardone559fb512005-06-23 01:40:19 -0400642 return -EOPNOTSUPP; /* can't change speed/duplex */
Christoph Lameter8199d3a2005-03-30 13:34:31 -0800643
644 if (cmd->autoneg == AUTONEG_DISABLE) {
645 int cap = speed_duplex_to_caps(cmd->speed, cmd->duplex);
646
647 if (!(lc->supported & cap) || cmd->speed == SPEED_1000)
648 return -EINVAL;
649 lc->requested_speed = cmd->speed;
650 lc->requested_duplex = cmd->duplex;
651 lc->advertising = 0;
652 } else {
653 cmd->advertising &= ADVERTISED_MASK;
654 if (cmd->advertising & (cmd->advertising - 1))
655 cmd->advertising = lc->supported;
656 cmd->advertising &= lc->supported;
657 if (!cmd->advertising)
658 return -EINVAL;
659 lc->requested_speed = SPEED_INVALID;
660 lc->requested_duplex = DUPLEX_INVALID;
661 lc->advertising = cmd->advertising | ADVERTISED_Autoneg;
662 }
663 lc->autoneg = cmd->autoneg;
664 if (netif_running(dev))
665 t1_link_start(p->phy, p->mac, lc);
666 return 0;
667}
668
669static void get_pauseparam(struct net_device *dev,
670 struct ethtool_pauseparam *epause)
671{
672 struct adapter *adapter = dev->priv;
673 struct port_info *p = &adapter->port[dev->if_port];
674
675 epause->autoneg = (p->link_config.requested_fc & PAUSE_AUTONEG) != 0;
676 epause->rx_pause = (p->link_config.fc & PAUSE_RX) != 0;
677 epause->tx_pause = (p->link_config.fc & PAUSE_TX) != 0;
678}
679
680static int set_pauseparam(struct net_device *dev,
681 struct ethtool_pauseparam *epause)
682{
683 struct adapter *adapter = dev->priv;
684 struct port_info *p = &adapter->port[dev->if_port];
685 struct link_config *lc = &p->link_config;
686
687 if (epause->autoneg == AUTONEG_DISABLE)
688 lc->requested_fc = 0;
689 else if (lc->supported & SUPPORTED_Autoneg)
690 lc->requested_fc = PAUSE_AUTONEG;
691 else
692 return -EINVAL;
693
694 if (epause->rx_pause)
695 lc->requested_fc |= PAUSE_RX;
696 if (epause->tx_pause)
697 lc->requested_fc |= PAUSE_TX;
698 if (lc->autoneg == AUTONEG_ENABLE) {
699 if (netif_running(dev))
700 t1_link_start(p->phy, p->mac, lc);
701 } else {
702 lc->fc = lc->requested_fc & (PAUSE_RX | PAUSE_TX);
703 if (netif_running(dev))
704 p->mac->ops->set_speed_duplex_fc(p->mac, -1, -1,
705 lc->fc);
706 }
707 return 0;
708}
709
710static u32 get_rx_csum(struct net_device *dev)
711{
712 struct adapter *adapter = dev->priv;
713
714 return (adapter->flags & RX_CSUM_ENABLED) != 0;
715}
716
717static int set_rx_csum(struct net_device *dev, u32 data)
718{
719 struct adapter *adapter = dev->priv;
720
721 if (data)
722 adapter->flags |= RX_CSUM_ENABLED;
723 else
724 adapter->flags &= ~RX_CSUM_ENABLED;
725 return 0;
726}
727
728static int set_tso(struct net_device *dev, u32 value)
729{
730 struct adapter *adapter = dev->priv;
731
732 if (!(adapter->flags & TSO_CAPABLE))
733 return value ? -EOPNOTSUPP : 0;
734 return ethtool_op_set_tso(dev, value);
735}
736
737static void get_sge_param(struct net_device *dev, struct ethtool_ringparam *e)
738{
739 struct adapter *adapter = dev->priv;
740 int jumbo_fl = t1_is_T1B(adapter) ? 1 : 0;
741
742 e->rx_max_pending = MAX_RX_BUFFERS;
743 e->rx_mini_max_pending = 0;
744 e->rx_jumbo_max_pending = MAX_RX_JUMBO_BUFFERS;
745 e->tx_max_pending = MAX_CMDQ_ENTRIES;
746
747 e->rx_pending = adapter->params.sge.freelQ_size[!jumbo_fl];
748 e->rx_mini_pending = 0;
749 e->rx_jumbo_pending = adapter->params.sge.freelQ_size[jumbo_fl];
750 e->tx_pending = adapter->params.sge.cmdQ_size[0];
751}
752
753static int set_sge_param(struct net_device *dev, struct ethtool_ringparam *e)
754{
755 struct adapter *adapter = dev->priv;
756 int jumbo_fl = t1_is_T1B(adapter) ? 1 : 0;
757
758 if (e->rx_pending > MAX_RX_BUFFERS || e->rx_mini_pending ||
759 e->rx_jumbo_pending > MAX_RX_JUMBO_BUFFERS ||
760 e->tx_pending > MAX_CMDQ_ENTRIES ||
761 e->rx_pending < MIN_FL_ENTRIES ||
762 e->rx_jumbo_pending < MIN_FL_ENTRIES ||
763 e->tx_pending < (adapter->params.nports + 1) * (MAX_SKB_FRAGS + 1))
764 return -EINVAL;
765
766 if (adapter->flags & FULL_INIT_DONE)
Francois Romieu356bd142006-12-11 23:47:00 +0100767 return -EBUSY;
Christoph Lameter8199d3a2005-03-30 13:34:31 -0800768
769 adapter->params.sge.freelQ_size[!jumbo_fl] = e->rx_pending;
770 adapter->params.sge.freelQ_size[jumbo_fl] = e->rx_jumbo_pending;
771 adapter->params.sge.cmdQ_size[0] = e->tx_pending;
772 adapter->params.sge.cmdQ_size[1] = e->tx_pending > MAX_CMDQ1_ENTRIES ?
773 MAX_CMDQ1_ENTRIES : e->tx_pending;
774 return 0;
775}
776
777static int set_coalesce(struct net_device *dev, struct ethtool_coalesce *c)
778{
779 struct adapter *adapter = dev->priv;
780
Stephen Hemminger7fe26a62006-12-08 11:08:33 -0800781 adapter->params.sge.rx_coalesce_usecs = c->rx_coalesce_usecs;
Francois Romieu356bd142006-12-11 23:47:00 +0100782 adapter->params.sge.coalesce_enable = c->use_adaptive_rx_coalesce;
Christoph Lameter8199d3a2005-03-30 13:34:31 -0800783 adapter->params.sge.sample_interval_usecs = c->rate_sample_interval;
Christoph Lameter8199d3a2005-03-30 13:34:31 -0800784 t1_sge_set_coalesce_params(adapter->sge, &adapter->params.sge);
785 return 0;
786}
787
788static int get_coalesce(struct net_device *dev, struct ethtool_coalesce *c)
789{
790 struct adapter *adapter = dev->priv;
791
Scott Bardone559fb512005-06-23 01:40:19 -0400792 c->rx_coalesce_usecs = adapter->params.sge.rx_coalesce_usecs;
Christoph Lameter8199d3a2005-03-30 13:34:31 -0800793 c->rate_sample_interval = adapter->params.sge.sample_interval_usecs;
794 c->use_adaptive_rx_coalesce = adapter->params.sge.coalesce_enable;
795 return 0;
796}
797
798static int get_eeprom_len(struct net_device *dev)
799{
Francois Romieu356bd142006-12-11 23:47:00 +0100800 struct adapter *adapter = dev->priv;
Stephen Hemmingerf1d3d382006-12-01 16:36:16 -0800801
Francois Romieu356bd142006-12-11 23:47:00 +0100802 return t1_is_asic(adapter) ? EEPROM_SIZE : 0;
Christoph Lameter8199d3a2005-03-30 13:34:31 -0800803}
804
805#define EEPROM_MAGIC(ap) \
806 (PCI_VENDOR_ID_CHELSIO | ((ap)->params.chip_version << 16))
807
808static int get_eeprom(struct net_device *dev, struct ethtool_eeprom *e,
809 u8 *data)
810{
811 int i;
812 u8 buf[EEPROM_SIZE] __attribute__((aligned(4)));
813 struct adapter *adapter = dev->priv;
814
815 e->magic = EEPROM_MAGIC(adapter);
816 for (i = e->offset & ~3; i < e->offset + e->len; i += sizeof(u32))
Al Viroac390c62007-12-22 18:56:33 +0000817 t1_seeprom_read(adapter, i, (__le32 *)&buf[i]);
Christoph Lameter8199d3a2005-03-30 13:34:31 -0800818 memcpy(data, buf + e->offset, e->len);
819 return 0;
820}
821
Jeff Garzik7282d492006-09-13 14:30:00 -0400822static const struct ethtool_ops t1_ethtool_ops = {
Christoph Lameter8199d3a2005-03-30 13:34:31 -0800823 .get_settings = get_settings,
824 .set_settings = set_settings,
825 .get_drvinfo = get_drvinfo,
826 .get_msglevel = get_msglevel,
827 .set_msglevel = set_msglevel,
828 .get_ringparam = get_sge_param,
829 .set_ringparam = set_sge_param,
830 .get_coalesce = get_coalesce,
831 .set_coalesce = set_coalesce,
832 .get_eeprom_len = get_eeprom_len,
833 .get_eeprom = get_eeprom,
834 .get_pauseparam = get_pauseparam,
835 .set_pauseparam = set_pauseparam,
836 .get_rx_csum = get_rx_csum,
837 .set_rx_csum = set_rx_csum,
Christoph Lameter8199d3a2005-03-30 13:34:31 -0800838 .set_tx_csum = ethtool_op_set_tx_csum,
Christoph Lameter8199d3a2005-03-30 13:34:31 -0800839 .set_sg = ethtool_op_set_sg,
840 .get_link = ethtool_op_get_link,
841 .get_strings = get_strings,
Jeff Garzikb9f2c042007-10-03 18:07:32 -0700842 .get_sset_count = get_sset_count,
Christoph Lameter8199d3a2005-03-30 13:34:31 -0800843 .get_ethtool_stats = get_stats,
Scott Bardone559fb512005-06-23 01:40:19 -0400844 .get_regs_len = get_regs_len,
845 .get_regs = get_regs,
Christoph Lameter8199d3a2005-03-30 13:34:31 -0800846 .set_tso = set_tso,
847};
848
Christoph Lameter8199d3a2005-03-30 13:34:31 -0800849static int t1_ioctl(struct net_device *dev, struct ifreq *req, int cmd)
850{
Stephen Hemminger20578152006-11-17 11:21:22 -0800851 struct adapter *adapter = dev->priv;
852 struct mii_ioctl_data *data = if_mii(req);
Christoph Lameter8199d3a2005-03-30 13:34:31 -0800853
854 switch (cmd) {
Stephen Hemminger20578152006-11-17 11:21:22 -0800855 case SIOCGMIIPHY:
856 data->phy_id = adapter->port[dev->if_port].phy->addr;
857 /* FALLTHRU */
858 case SIOCGMIIREG: {
Christoph Lameter8199d3a2005-03-30 13:34:31 -0800859 struct cphy *phy = adapter->port[dev->if_port].phy;
860 u32 val;
861
Scott Bardone559fb512005-06-23 01:40:19 -0400862 if (!phy->mdio_read)
Francois Romieu356bd142006-12-11 23:47:00 +0100863 return -EOPNOTSUPP;
Christoph Lameter8199d3a2005-03-30 13:34:31 -0800864 phy->mdio_read(adapter, data->phy_id, 0, data->reg_num & 0x1f,
865 &val);
Stephen Hemminger20578152006-11-17 11:21:22 -0800866 data->val_out = val;
867 break;
Christoph Lameter8199d3a2005-03-30 13:34:31 -0800868 }
Stephen Hemminger20578152006-11-17 11:21:22 -0800869 case SIOCSMIIREG: {
Christoph Lameter8199d3a2005-03-30 13:34:31 -0800870 struct cphy *phy = adapter->port[dev->if_port].phy;
871
Stephen Hemminger20578152006-11-17 11:21:22 -0800872 if (!capable(CAP_NET_ADMIN))
873 return -EPERM;
Scott Bardone559fb512005-06-23 01:40:19 -0400874 if (!phy->mdio_write)
Francois Romieu356bd142006-12-11 23:47:00 +0100875 return -EOPNOTSUPP;
Christoph Lameter8199d3a2005-03-30 13:34:31 -0800876 phy->mdio_write(adapter, data->phy_id, 0, data->reg_num & 0x1f,
Scott Bardone559fb512005-06-23 01:40:19 -0400877 data->val_in);
Stephen Hemminger20578152006-11-17 11:21:22 -0800878 break;
Christoph Lameter8199d3a2005-03-30 13:34:31 -0800879 }
880
Christoph Lameter8199d3a2005-03-30 13:34:31 -0800881 default:
882 return -EOPNOTSUPP;
883 }
884 return 0;
885}
886
887static int t1_change_mtu(struct net_device *dev, int new_mtu)
888{
889 int ret;
890 struct adapter *adapter = dev->priv;
891 struct cmac *mac = adapter->port[dev->if_port].mac;
892
893 if (!mac->ops->set_mtu)
Francois Romieu356bd142006-12-11 23:47:00 +0100894 return -EOPNOTSUPP;
Christoph Lameter8199d3a2005-03-30 13:34:31 -0800895 if (new_mtu < 68)
Francois Romieu356bd142006-12-11 23:47:00 +0100896 return -EINVAL;
Christoph Lameter8199d3a2005-03-30 13:34:31 -0800897 if ((ret = mac->ops->set_mtu(mac, new_mtu)))
898 return ret;
899 dev->mtu = new_mtu;
900 return 0;
901}
902
903static int t1_set_mac_addr(struct net_device *dev, void *p)
904{
905 struct adapter *adapter = dev->priv;
906 struct cmac *mac = adapter->port[dev->if_port].mac;
907 struct sockaddr *addr = p;
908
909 if (!mac->ops->macaddress_set)
910 return -EOPNOTSUPP;
911
912 memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
913 mac->ops->macaddress_set(mac, dev->dev_addr);
914 return 0;
915}
916
917#if defined(CONFIG_VLAN_8021Q) || defined(CONFIG_VLAN_8021Q_MODULE)
918static void vlan_rx_register(struct net_device *dev,
919 struct vlan_group *grp)
920{
921 struct adapter *adapter = dev->priv;
922
923 spin_lock_irq(&adapter->async_lock);
924 adapter->vlan_grp = grp;
925 t1_set_vlan_accel(adapter, grp != NULL);
926 spin_unlock_irq(&adapter->async_lock);
927}
Christoph Lameter8199d3a2005-03-30 13:34:31 -0800928#endif
929
930#ifdef CONFIG_NET_POLL_CONTROLLER
931static void t1_netpoll(struct net_device *dev)
932{
Scott Bardone559fb512005-06-23 01:40:19 -0400933 unsigned long flags;
Christoph Lameter8199d3a2005-03-30 13:34:31 -0800934 struct adapter *adapter = dev->priv;
935
Scott Bardone559fb512005-06-23 01:40:19 -0400936 local_irq_save(flags);
Stephen Hemminger7fe26a62006-12-08 11:08:33 -0800937 t1_interrupt(adapter->pdev->irq, adapter);
Scott Bardone559fb512005-06-23 01:40:19 -0400938 local_irq_restore(flags);
Christoph Lameter8199d3a2005-03-30 13:34:31 -0800939}
940#endif
941
942/*
943 * Periodic accumulation of MAC statistics. This is used only if the MAC
944 * does not have any other way to prevent stats counter overflow.
945 */
David Howellsc4028952006-11-22 14:57:56 +0000946static void mac_stats_task(struct work_struct *work)
Christoph Lameter8199d3a2005-03-30 13:34:31 -0800947{
948 int i;
David Howellsc4028952006-11-22 14:57:56 +0000949 struct adapter *adapter =
950 container_of(work, struct adapter, stats_update_task.work);
Christoph Lameter8199d3a2005-03-30 13:34:31 -0800951
952 for_each_port(adapter, i) {
953 struct port_info *p = &adapter->port[i];
954
955 if (netif_running(p->dev))
956 p->mac->ops->statistics_update(p->mac,
957 MAC_STATS_UPDATE_FAST);
958 }
959
960 /* Schedule the next statistics update if any port is active. */
961 spin_lock(&adapter->work_lock);
962 if (adapter->open_device_map & PORT_MASK)
963 schedule_mac_stats_update(adapter,
964 adapter->params.stats_update_period);
965 spin_unlock(&adapter->work_lock);
966}
967
968/*
969 * Processes elmer0 external interrupts in process context.
970 */
David Howellsc4028952006-11-22 14:57:56 +0000971static void ext_intr_task(struct work_struct *work)
Christoph Lameter8199d3a2005-03-30 13:34:31 -0800972{
David Howellsc4028952006-11-22 14:57:56 +0000973 struct adapter *adapter =
974 container_of(work, struct adapter, ext_intr_handler_task);
Christoph Lameter8199d3a2005-03-30 13:34:31 -0800975
Stephen Hemmingerf1d3d382006-12-01 16:36:16 -0800976 t1_elmer0_ext_intr_handler(adapter);
Christoph Lameter8199d3a2005-03-30 13:34:31 -0800977
978 /* Now reenable external interrupts */
Scott Bardone559fb512005-06-23 01:40:19 -0400979 spin_lock_irq(&adapter->async_lock);
Christoph Lameter8199d3a2005-03-30 13:34:31 -0800980 adapter->slow_intr_mask |= F_PL_INTR_EXT;
Scott Bardone559fb512005-06-23 01:40:19 -0400981 writel(F_PL_INTR_EXT, adapter->regs + A_PL_CAUSE);
982 writel(adapter->slow_intr_mask | F_PL_INTR_SGE_DATA,
Stephen Hemminger20578152006-11-17 11:21:22 -0800983 adapter->regs + A_PL_ENABLE);
Scott Bardone559fb512005-06-23 01:40:19 -0400984 spin_unlock_irq(&adapter->async_lock);
Christoph Lameter8199d3a2005-03-30 13:34:31 -0800985}
986
987/*
988 * Interrupt-context handler for elmer0 external interrupts.
989 */
990void t1_elmer0_ext_intr(struct adapter *adapter)
991{
Christoph Lameter8199d3a2005-03-30 13:34:31 -0800992 /*
993 * Schedule a task to handle external interrupts as we require
994 * a process context. We disable EXT interrupts in the interim
995 * and let the task reenable them when it's done.
996 */
997 adapter->slow_intr_mask &= ~F_PL_INTR_EXT;
Scott Bardone559fb512005-06-23 01:40:19 -0400998 writel(adapter->slow_intr_mask | F_PL_INTR_SGE_DATA,
Stephen Hemminger20578152006-11-17 11:21:22 -0800999 adapter->regs + A_PL_ENABLE);
Christoph Lameter8199d3a2005-03-30 13:34:31 -08001000 schedule_work(&adapter->ext_intr_handler_task);
1001}
1002
1003void t1_fatal_err(struct adapter *adapter)
1004{
1005 if (adapter->flags & FULL_INIT_DONE) {
1006 t1_sge_stop(adapter->sge);
1007 t1_interrupts_disable(adapter);
1008 }
1009 CH_ALERT("%s: encountered fatal error, operation suspended\n",
1010 adapter->name);
1011}
1012
Christoph Lameter8199d3a2005-03-30 13:34:31 -08001013static int __devinit init_one(struct pci_dev *pdev,
1014 const struct pci_device_id *ent)
1015{
1016 static int version_printed;
1017
1018 int i, err, pci_using_dac = 0;
1019 unsigned long mmio_start, mmio_len;
1020 const struct board_info *bi;
1021 struct adapter *adapter = NULL;
1022 struct port_info *pi;
1023
1024 if (!version_printed) {
Scott Bardone559fb512005-06-23 01:40:19 -04001025 printk(KERN_INFO "%s - version %s\n", DRV_DESCRIPTION,
1026 DRV_VERSION);
Christoph Lameter8199d3a2005-03-30 13:34:31 -08001027 ++version_printed;
1028 }
1029
1030 err = pci_enable_device(pdev);
1031 if (err)
Stephen Hemminger20578152006-11-17 11:21:22 -08001032 return err;
Christoph Lameter8199d3a2005-03-30 13:34:31 -08001033
1034 if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
1035 CH_ERR("%s: cannot find PCI device memory base address\n",
1036 pci_name(pdev));
1037 err = -ENODEV;
1038 goto out_disable_pdev;
1039 }
1040
Scott Bardone559fb512005-06-23 01:40:19 -04001041 if (!pci_set_dma_mask(pdev, DMA_64BIT_MASK)) {
Christoph Lameter8199d3a2005-03-30 13:34:31 -08001042 pci_using_dac = 1;
Scott Bardone559fb512005-06-23 01:40:19 -04001043
1044 if (pci_set_consistent_dma_mask(pdev, DMA_64BIT_MASK)) {
Joe Perches31067522007-11-19 17:48:21 -08001045 CH_ERR("%s: unable to obtain 64-bit DMA for "
Christoph Lameter8199d3a2005-03-30 13:34:31 -08001046 "consistent allocations\n", pci_name(pdev));
1047 err = -ENODEV;
1048 goto out_disable_pdev;
1049 }
Scott Bardone559fb512005-06-23 01:40:19 -04001050
1051 } else if ((err = pci_set_dma_mask(pdev, DMA_32BIT_MASK)) != 0) {
Christoph Lameter8199d3a2005-03-30 13:34:31 -08001052 CH_ERR("%s: no usable DMA configuration\n", pci_name(pdev));
1053 goto out_disable_pdev;
1054 }
1055
Scott Bardone559fb512005-06-23 01:40:19 -04001056 err = pci_request_regions(pdev, DRV_NAME);
Christoph Lameter8199d3a2005-03-30 13:34:31 -08001057 if (err) {
1058 CH_ERR("%s: cannot obtain PCI resources\n", pci_name(pdev));
1059 goto out_disable_pdev;
1060 }
1061
1062 pci_set_master(pdev);
1063
Stephen Hemminger20578152006-11-17 11:21:22 -08001064 mmio_start = pci_resource_start(pdev, 0);
Christoph Lameter8199d3a2005-03-30 13:34:31 -08001065 mmio_len = pci_resource_len(pdev, 0);
1066 bi = t1_get_board_info(ent->driver_data);
1067
1068 for (i = 0; i < bi->port_number; ++i) {
1069 struct net_device *netdev;
1070
1071 netdev = alloc_etherdev(adapter ? 0 : sizeof(*adapter));
1072 if (!netdev) {
1073 err = -ENOMEM;
1074 goto out_free_dev;
1075 }
1076
Christoph Lameter8199d3a2005-03-30 13:34:31 -08001077 SET_NETDEV_DEV(netdev, &pdev->dev);
1078
1079 if (!adapter) {
1080 adapter = netdev->priv;
1081 adapter->pdev = pdev;
1082 adapter->port[0].dev = netdev; /* so we don't leak it */
1083
1084 adapter->regs = ioremap(mmio_start, mmio_len);
1085 if (!adapter->regs) {
1086 CH_ERR("%s: cannot map device registers\n",
1087 pci_name(pdev));
1088 err = -ENOMEM;
1089 goto out_free_dev;
1090 }
1091
1092 if (t1_get_board_rev(adapter, bi, &adapter->params)) {
1093 err = -ENODEV; /* Can't handle this chip rev */
1094 goto out_free_dev;
1095 }
1096
1097 adapter->name = pci_name(pdev);
1098 adapter->msg_enable = dflt_msg_enable;
1099 adapter->mmio_len = mmio_len;
1100
Christoph Lameter8199d3a2005-03-30 13:34:31 -08001101 spin_lock_init(&adapter->tpi_lock);
1102 spin_lock_init(&adapter->work_lock);
1103 spin_lock_init(&adapter->async_lock);
Stephen Hemminger352c4172006-12-01 16:36:17 -08001104 spin_lock_init(&adapter->mac_lock);
Christoph Lameter8199d3a2005-03-30 13:34:31 -08001105
1106 INIT_WORK(&adapter->ext_intr_handler_task,
David Howellsc4028952006-11-22 14:57:56 +00001107 ext_intr_task);
1108 INIT_DELAYED_WORK(&adapter->stats_update_task,
1109 mac_stats_task);
Christoph Lameter8199d3a2005-03-30 13:34:31 -08001110
1111 pci_set_drvdata(pdev, netdev);
Christoph Lameter8199d3a2005-03-30 13:34:31 -08001112 }
1113
1114 pi = &adapter->port[i];
1115 pi->dev = netdev;
1116 netif_carrier_off(netdev);
1117 netdev->irq = pdev->irq;
1118 netdev->if_port = i;
1119 netdev->mem_start = mmio_start;
1120 netdev->mem_end = mmio_start + mmio_len - 1;
1121 netdev->priv = adapter;
1122 netdev->features |= NETIF_F_SG | NETIF_F_IP_CSUM;
Scott Bardone559fb512005-06-23 01:40:19 -04001123 netdev->features |= NETIF_F_LLTX;
1124
Christoph Lameter8199d3a2005-03-30 13:34:31 -08001125 adapter->flags |= RX_CSUM_ENABLED | TCP_CSUM_CAPABLE;
1126 if (pci_using_dac)
1127 netdev->features |= NETIF_F_HIGHDMA;
1128 if (vlan_tso_capable(adapter)) {
Christoph Lameter8199d3a2005-03-30 13:34:31 -08001129#if defined(CONFIG_VLAN_8021Q) || defined(CONFIG_VLAN_8021Q_MODULE)
1130 adapter->flags |= VLAN_ACCEL_CAPABLE;
1131 netdev->features |=
1132 NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX;
1133 netdev->vlan_rx_register = vlan_rx_register;
Christoph Lameter8199d3a2005-03-30 13:34:31 -08001134#endif
Stephen Hemmingerf1d3d382006-12-01 16:36:16 -08001135
1136 /* T204: disable TSO */
1137 if (!(is_T2(adapter)) || bi->port_number != 4) {
1138 adapter->flags |= TSO_CAPABLE;
1139 netdev->features |= NETIF_F_TSO;
1140 }
Christoph Lameter8199d3a2005-03-30 13:34:31 -08001141 }
1142
1143 netdev->open = cxgb_open;
1144 netdev->stop = cxgb_close;
1145 netdev->hard_start_xmit = t1_start_xmit;
1146 netdev->hard_header_len += (adapter->flags & TSO_CAPABLE) ?
Stephen Hemmingerf1d3d382006-12-01 16:36:16 -08001147 sizeof(struct cpl_tx_pkt_lso) : sizeof(struct cpl_tx_pkt);
Christoph Lameter8199d3a2005-03-30 13:34:31 -08001148 netdev->get_stats = t1_get_stats;
1149 netdev->set_multicast_list = t1_set_rxmode;
1150 netdev->do_ioctl = t1_ioctl;
1151 netdev->change_mtu = t1_change_mtu;
1152 netdev->set_mac_address = t1_set_mac_addr;
1153#ifdef CONFIG_NET_POLL_CONTROLLER
1154 netdev->poll_controller = t1_netpoll;
1155#endif
Stephen Hemminger7fe26a62006-12-08 11:08:33 -08001156#ifdef CONFIG_CHELSIO_T1_NAPI
Stephen Hemmingerbea33482007-10-03 16:41:36 -07001157 netif_napi_add(netdev, &adapter->napi, t1_poll, 64);
Stephen Hemminger7fe26a62006-12-08 11:08:33 -08001158#endif
Christoph Lameter8199d3a2005-03-30 13:34:31 -08001159
Stephen Hemminger20578152006-11-17 11:21:22 -08001160 SET_ETHTOOL_OPS(netdev, &t1_ethtool_ops);
Christoph Lameter8199d3a2005-03-30 13:34:31 -08001161 }
1162
1163 if (t1_init_sw_modules(adapter, bi) < 0) {
1164 err = -ENODEV;
1165 goto out_free_dev;
1166 }
1167
1168 /*
1169 * The card is now ready to go. If any errors occur during device
1170 * registration we do not fail the whole card but rather proceed only
1171 * with the ports we manage to register successfully. However we must
1172 * register at least one net device.
1173 */
1174 for (i = 0; i < bi->port_number; ++i) {
1175 err = register_netdev(adapter->port[i].dev);
1176 if (err)
1177 CH_WARN("%s: cannot register net device %s, skipping\n",
1178 pci_name(pdev), adapter->port[i].dev->name);
1179 else {
1180 /*
1181 * Change the name we use for messages to the name of
1182 * the first successfully registered interface.
1183 */
1184 if (!adapter->registered_device_map)
1185 adapter->name = adapter->port[i].dev->name;
1186
Stephen Hemminger20578152006-11-17 11:21:22 -08001187 __set_bit(i, &adapter->registered_device_map);
Christoph Lameter8199d3a2005-03-30 13:34:31 -08001188 }
1189 }
1190 if (!adapter->registered_device_map) {
1191 CH_ERR("%s: could not register any net devices\n",
1192 pci_name(pdev));
1193 goto out_release_adapter_res;
1194 }
1195
1196 printk(KERN_INFO "%s: %s (rev %d), %s %dMHz/%d-bit\n", adapter->name,
1197 bi->desc, adapter->params.chip_revision,
1198 adapter->params.pci.is_pcix ? "PCIX" : "PCI",
1199 adapter->params.pci.speed, adapter->params.pci.width);
Stephen Hemmingerf1d3d382006-12-01 16:36:16 -08001200
1201 /*
1202 * Set the T1B ASIC and memory clocks.
1203 */
1204 if (t1powersave)
1205 adapter->t1powersave = LCLOCK; /* HW default is powersave mode. */
1206 else
1207 adapter->t1powersave = HCLOCK;
1208 if (t1_is_T1B(adapter))
1209 t1_clock(adapter, t1powersave);
1210
Christoph Lameter8199d3a2005-03-30 13:34:31 -08001211 return 0;
1212
Francois Romieu356bd142006-12-11 23:47:00 +01001213out_release_adapter_res:
Christoph Lameter8199d3a2005-03-30 13:34:31 -08001214 t1_free_sw_modules(adapter);
Francois Romieu356bd142006-12-11 23:47:00 +01001215out_free_dev:
Christoph Lameter8199d3a2005-03-30 13:34:31 -08001216 if (adapter) {
Stephen Hemmingere4876472006-11-17 11:25:23 -08001217 if (adapter->regs)
1218 iounmap(adapter->regs);
Christoph Lameter8199d3a2005-03-30 13:34:31 -08001219 for (i = bi->port_number - 1; i >= 0; --i)
Stephen Hemmingere4876472006-11-17 11:25:23 -08001220 if (adapter->port[i].dev)
1221 free_netdev(adapter->port[i].dev);
Christoph Lameter8199d3a2005-03-30 13:34:31 -08001222 }
1223 pci_release_regions(pdev);
Francois Romieu356bd142006-12-11 23:47:00 +01001224out_disable_pdev:
Christoph Lameter8199d3a2005-03-30 13:34:31 -08001225 pci_disable_device(pdev);
1226 pci_set_drvdata(pdev, NULL);
1227 return err;
1228}
1229
Stephen Hemmingerf1d3d382006-12-01 16:36:16 -08001230static void bit_bang(struct adapter *adapter, int bitdata, int nbits)
1231{
1232 int data;
1233 int i;
1234 u32 val;
1235
1236 enum {
1237 S_CLOCK = 1 << 3,
1238 S_DATA = 1 << 4
1239 };
1240
1241 for (i = (nbits - 1); i > -1; i--) {
1242
1243 udelay(50);
1244
1245 data = ((bitdata >> i) & 0x1);
1246 __t1_tpi_read(adapter, A_ELMER0_GPO, &val);
1247
1248 if (data)
1249 val |= S_DATA;
1250 else
1251 val &= ~S_DATA;
1252
1253 udelay(50);
1254
1255 /* Set SCLOCK low */
1256 val &= ~S_CLOCK;
1257 __t1_tpi_write(adapter, A_ELMER0_GPO, val);
1258
1259 udelay(50);
1260
1261 /* Write SCLOCK high */
1262 val |= S_CLOCK;
1263 __t1_tpi_write(adapter, A_ELMER0_GPO, val);
1264
1265 }
1266}
1267
1268static int t1_clock(struct adapter *adapter, int mode)
1269{
1270 u32 val;
1271 int M_CORE_VAL;
1272 int M_MEM_VAL;
1273
1274 enum {
Francois Romieu356bd142006-12-11 23:47:00 +01001275 M_CORE_BITS = 9,
1276 T_CORE_VAL = 0,
1277 T_CORE_BITS = 2,
1278 N_CORE_VAL = 0,
1279 N_CORE_BITS = 2,
1280 M_MEM_BITS = 9,
1281 T_MEM_VAL = 0,
1282 T_MEM_BITS = 2,
1283 N_MEM_VAL = 0,
1284 N_MEM_BITS = 2,
1285 NP_LOAD = 1 << 17,
1286 S_LOAD_MEM = 1 << 5,
1287 S_LOAD_CORE = 1 << 6,
1288 S_CLOCK = 1 << 3
Stephen Hemmingerf1d3d382006-12-01 16:36:16 -08001289 };
1290
1291 if (!t1_is_T1B(adapter))
1292 return -ENODEV; /* Can't re-clock this chip. */
1293
Francois Romieud7487422006-12-11 23:49:13 +01001294 if (mode & 2)
Stephen Hemmingerf1d3d382006-12-01 16:36:16 -08001295 return 0; /* show current mode. */
Stephen Hemmingerf1d3d382006-12-01 16:36:16 -08001296
1297 if ((adapter->t1powersave & 1) == (mode & 1))
1298 return -EALREADY; /* ASIC already running in mode. */
1299
1300 if ((mode & 1) == HCLOCK) {
1301 M_CORE_VAL = 0x14;
1302 M_MEM_VAL = 0x18;
1303 adapter->t1powersave = HCLOCK; /* overclock */
1304 } else {
1305 M_CORE_VAL = 0xe;
1306 M_MEM_VAL = 0x10;
1307 adapter->t1powersave = LCLOCK; /* underclock */
1308 }
1309
1310 /* Don't interrupt this serial stream! */
1311 spin_lock(&adapter->tpi_lock);
1312
1313 /* Initialize for ASIC core */
1314 __t1_tpi_read(adapter, A_ELMER0_GPO, &val);
1315 val |= NP_LOAD;
1316 udelay(50);
1317 __t1_tpi_write(adapter, A_ELMER0_GPO, val);
1318 udelay(50);
1319 __t1_tpi_read(adapter, A_ELMER0_GPO, &val);
1320 val &= ~S_LOAD_CORE;
1321 val &= ~S_CLOCK;
1322 __t1_tpi_write(adapter, A_ELMER0_GPO, val);
1323 udelay(50);
1324
1325 /* Serial program the ASIC clock synthesizer */
1326 bit_bang(adapter, T_CORE_VAL, T_CORE_BITS);
1327 bit_bang(adapter, N_CORE_VAL, N_CORE_BITS);
1328 bit_bang(adapter, M_CORE_VAL, M_CORE_BITS);
1329 udelay(50);
1330
1331 /* Finish ASIC core */
1332 __t1_tpi_read(adapter, A_ELMER0_GPO, &val);
1333 val |= S_LOAD_CORE;
1334 udelay(50);
1335 __t1_tpi_write(adapter, A_ELMER0_GPO, val);
1336 udelay(50);
1337 __t1_tpi_read(adapter, A_ELMER0_GPO, &val);
1338 val &= ~S_LOAD_CORE;
1339 udelay(50);
1340 __t1_tpi_write(adapter, A_ELMER0_GPO, val);
1341 udelay(50);
1342
1343 /* Initialize for memory */
1344 __t1_tpi_read(adapter, A_ELMER0_GPO, &val);
1345 val |= NP_LOAD;
1346 udelay(50);
1347 __t1_tpi_write(adapter, A_ELMER0_GPO, val);
1348 udelay(50);
1349 __t1_tpi_read(adapter, A_ELMER0_GPO, &val);
1350 val &= ~S_LOAD_MEM;
1351 val &= ~S_CLOCK;
1352 udelay(50);
1353 __t1_tpi_write(adapter, A_ELMER0_GPO, val);
1354 udelay(50);
1355
1356 /* Serial program the memory clock synthesizer */
1357 bit_bang(adapter, T_MEM_VAL, T_MEM_BITS);
1358 bit_bang(adapter, N_MEM_VAL, N_MEM_BITS);
1359 bit_bang(adapter, M_MEM_VAL, M_MEM_BITS);
1360 udelay(50);
1361
1362 /* Finish memory */
1363 __t1_tpi_read(adapter, A_ELMER0_GPO, &val);
1364 val |= S_LOAD_MEM;
1365 udelay(50);
1366 __t1_tpi_write(adapter, A_ELMER0_GPO, val);
1367 udelay(50);
1368 __t1_tpi_read(adapter, A_ELMER0_GPO, &val);
1369 val &= ~S_LOAD_MEM;
1370 udelay(50);
1371 __t1_tpi_write(adapter, A_ELMER0_GPO, val);
1372
1373 spin_unlock(&adapter->tpi_lock);
1374
1375 return 0;
1376}
1377
Christoph Lameter8199d3a2005-03-30 13:34:31 -08001378static inline void t1_sw_reset(struct pci_dev *pdev)
1379{
1380 pci_write_config_dword(pdev, A_PCICFG_PM_CSR, 3);
1381 pci_write_config_dword(pdev, A_PCICFG_PM_CSR, 0);
1382}
1383
1384static void __devexit remove_one(struct pci_dev *pdev)
1385{
1386 struct net_device *dev = pci_get_drvdata(pdev);
Francois Romieu47cbe6f2006-12-05 23:19:06 +01001387 struct adapter *adapter = dev->priv;
1388 int i;
Christoph Lameter8199d3a2005-03-30 13:34:31 -08001389
Francois Romieu47cbe6f2006-12-05 23:19:06 +01001390 for_each_port(adapter, i) {
1391 if (test_bit(i, &adapter->registered_device_map))
1392 unregister_netdev(adapter->port[i].dev);
Christoph Lameter8199d3a2005-03-30 13:34:31 -08001393 }
Francois Romieu47cbe6f2006-12-05 23:19:06 +01001394
1395 t1_free_sw_modules(adapter);
1396 iounmap(adapter->regs);
1397
1398 while (--i >= 0) {
1399 if (adapter->port[i].dev)
1400 free_netdev(adapter->port[i].dev);
1401 }
1402
1403 pci_release_regions(pdev);
1404 pci_disable_device(pdev);
1405 pci_set_drvdata(pdev, NULL);
1406 t1_sw_reset(pdev);
Christoph Lameter8199d3a2005-03-30 13:34:31 -08001407}
1408
1409static struct pci_driver driver = {
Scott Bardone559fb512005-06-23 01:40:19 -04001410 .name = DRV_NAME,
Christoph Lameter8199d3a2005-03-30 13:34:31 -08001411 .id_table = t1_pci_tbl,
1412 .probe = init_one,
1413 .remove = __devexit_p(remove_one),
1414};
1415
1416static int __init t1_init_module(void)
1417{
Jeff Garzik29917622006-08-19 17:48:59 -04001418 return pci_register_driver(&driver);
Christoph Lameter8199d3a2005-03-30 13:34:31 -08001419}
1420
1421static void __exit t1_cleanup_module(void)
1422{
1423 pci_unregister_driver(&driver);
1424}
1425
1426module_init(t1_init_module);
1427module_exit(t1_cleanup_module);