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39#include "common.h"
40#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>
48#include <linux/dma-mapping.h>
49#include <asm/uaccess.h>
50
51#include "cpl5_cmd.h"
52#include "regs.h"
53#include "gmac.h"
54#include "cphy.h"
55#include "sge.h"
56#include "tp.h"
57#include "espi.h"
58#include "elmer0.h"
59
60#include <linux/workqueue.h>
61
62static 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}
71
72#define MAX_CMDQ_ENTRIES 16384
73#define MAX_CMDQ1_ENTRIES 1024
74#define MAX_RX_BUFFERS 16384
75#define MAX_RX_JUMBO_BUFFERS 16384
76#define MAX_TX_BUFFERS_HIGH 16384U
77#define MAX_TX_BUFFERS_LOW 1536U
78#define MAX_TX_BUFFERS 1460U
79#define MIN_FL_ENTRIES 32
80
81#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
87
88
89#define EEPROM_SIZE 32
90
91MODULE_DESCRIPTION(DRV_DESCRIPTION);
92MODULE_AUTHOR("Chelsio Communications");
93MODULE_LICENSE("GPL");
94
95static int dflt_msg_enable = DFLT_MSG_ENABLE;
96
97module_param(dflt_msg_enable, int, 0);
98MODULE_PARM_DESC(dflt_msg_enable, "Chelsio T1 default message enable bitmap");
99
100#define HCLOCK 0x0
101#define LCLOCK 0x1
102
103
104static int t1_clock(struct adapter *adapter, int mode);
105static int t1powersave = 1;
106
107module_param(t1powersave, int, 0);
108MODULE_PARM_DESC(t1powersave, "Enable/Disable T1 powersaving mode");
109
110static int disable_msi = 0;
111module_param(disable_msi, int, 0);
112MODULE_PARM_DESC(disable_msi, "Disable Message Signaled Interrupt (MSI)");
113
114static const char pci_speed[][4] = {
115 "33", "66", "100", "133"
116};
117
118
119
120
121static void t1_set_rxmode(struct net_device *dev)
122{
123 struct adapter *adapter = dev->ml_priv;
124 struct cmac *mac = adapter->port[dev->if_port].mac;
125 struct t1_rx_mode rm;
126
127 rm.dev = dev;
128 mac->ops->set_rx_mode(mac, &rm);
129}
130
131static void link_report(struct port_info *p)
132{
133 if (!netif_carrier_ok(p->dev))
134 printk(KERN_INFO "%s: link down\n", p->dev->name);
135 else {
136 const char *s = "10Mbps";
137
138 switch (p->link_config.speed) {
139 case SPEED_10000: s = "10Gbps"; break;
140 case SPEED_1000: s = "1000Mbps"; break;
141 case SPEED_100: s = "100Mbps"; break;
142 }
143
144 printk(KERN_INFO "%s: link up, %s, %s-duplex\n",
145 p->dev->name, s,
146 p->link_config.duplex == DUPLEX_FULL ? "full" : "half");
147 }
148}
149
150void t1_link_negotiated(struct adapter *adapter, int port_id, int link_stat,
151 int speed, int duplex, int pause)
152{
153 struct port_info *p = &adapter->port[port_id];
154
155 if (link_stat != netif_carrier_ok(p->dev)) {
156 if (link_stat)
157 netif_carrier_on(p->dev);
158 else
159 netif_carrier_off(p->dev);
160 link_report(p);
161
162
163 if ((speed > 0) && (adapter->params.nports > 1)) {
164 unsigned int sched_speed = 10;
165 switch (speed) {
166 case SPEED_1000:
167 sched_speed = 1000;
168 break;
169 case SPEED_100:
170 sched_speed = 100;
171 break;
172 case SPEED_10:
173 sched_speed = 10;
174 break;
175 }
176 t1_sched_update_parms(adapter->sge, port_id, 0, sched_speed);
177 }
178 }
179}
180
181static void link_start(struct port_info *p)
182{
183 struct cmac *mac = p->mac;
184
185 mac->ops->reset(mac);
186 if (mac->ops->macaddress_set)
187 mac->ops->macaddress_set(mac, p->dev->dev_addr);
188 t1_set_rxmode(p->dev);
189 t1_link_start(p->phy, mac, &p->link_config);
190 mac->ops->enable(mac, MAC_DIRECTION_RX | MAC_DIRECTION_TX);
191}
192
193static void enable_hw_csum(struct adapter *adapter)
194{
195 if (adapter->port[0].dev->hw_features & NETIF_F_TSO)
196 t1_tp_set_ip_checksum_offload(adapter->tp, 1);
197 t1_tp_set_tcp_checksum_offload(adapter->tp, 1);
198}
199
200
201
202
203
204static int cxgb_up(struct adapter *adapter)
205{
206 int err = 0;
207
208 if (!(adapter->flags & FULL_INIT_DONE)) {
209 err = t1_init_hw_modules(adapter);
210 if (err)
211 goto out_err;
212
213 enable_hw_csum(adapter);
214 adapter->flags |= FULL_INIT_DONE;
215 }
216
217 t1_interrupts_clear(adapter);
218
219 adapter->params.has_msi = !disable_msi && !pci_enable_msi(adapter->pdev);
220 err = request_irq(adapter->pdev->irq, t1_interrupt,
221 adapter->params.has_msi ? 0 : IRQF_SHARED,
222 adapter->name, adapter);
223 if (err) {
224 if (adapter->params.has_msi)
225 pci_disable_msi(adapter->pdev);
226
227 goto out_err;
228 }
229
230 t1_sge_start(adapter->sge);
231 t1_interrupts_enable(adapter);
232out_err:
233 return err;
234}
235
236
237
238
239static void cxgb_down(struct adapter *adapter)
240{
241 t1_sge_stop(adapter->sge);
242 t1_interrupts_disable(adapter);
243 free_irq(adapter->pdev->irq, adapter);
244 if (adapter->params.has_msi)
245 pci_disable_msi(adapter->pdev);
246}
247
248static int cxgb_open(struct net_device *dev)
249{
250 int err;
251 struct adapter *adapter = dev->ml_priv;
252 int other_ports = adapter->open_device_map & PORT_MASK;
253
254 napi_enable(&adapter->napi);
255 if (!adapter->open_device_map && (err = cxgb_up(adapter)) < 0) {
256 napi_disable(&adapter->napi);
257 return err;
258 }
259
260 __set_bit(dev->if_port, &adapter->open_device_map);
261 link_start(&adapter->port[dev->if_port]);
262 netif_start_queue(dev);
263 if (!other_ports && adapter->params.stats_update_period)
264 schedule_mac_stats_update(adapter,
265 adapter->params.stats_update_period);
266 return 0;
267}
268
269static int cxgb_close(struct net_device *dev)
270{
271 struct adapter *adapter = dev->ml_priv;
272 struct port_info *p = &adapter->port[dev->if_port];
273 struct cmac *mac = p->mac;
274
275 netif_stop_queue(dev);
276 napi_disable(&adapter->napi);
277 mac->ops->disable(mac, MAC_DIRECTION_TX | MAC_DIRECTION_RX);
278 netif_carrier_off(dev);
279
280 clear_bit(dev->if_port, &adapter->open_device_map);
281 if (adapter->params.stats_update_period &&
282 !(adapter->open_device_map & PORT_MASK)) {
283
284 smp_mb__after_clear_bit();
285 spin_lock(&adapter->work_lock);
286 spin_unlock(&adapter->work_lock);
287 cancel_mac_stats_update(adapter);
288 }
289
290 if (!adapter->open_device_map)
291 cxgb_down(adapter);
292 return 0;
293}
294
295static struct net_device_stats *t1_get_stats(struct net_device *dev)
296{
297 struct adapter *adapter = dev->ml_priv;
298 struct port_info *p = &adapter->port[dev->if_port];
299 struct net_device_stats *ns = &p->netstats;
300 const struct cmac_statistics *pstats;
301
302
303 pstats = p->mac->ops->statistics_update(p->mac,
304 MAC_STATS_UPDATE_FULL);
305
306 ns->tx_packets = pstats->TxUnicastFramesOK +
307 pstats->TxMulticastFramesOK + pstats->TxBroadcastFramesOK;
308
309 ns->rx_packets = pstats->RxUnicastFramesOK +
310 pstats->RxMulticastFramesOK + pstats->RxBroadcastFramesOK;
311
312 ns->tx_bytes = pstats->TxOctetsOK;
313 ns->rx_bytes = pstats->RxOctetsOK;
314
315 ns->tx_errors = pstats->TxLateCollisions + pstats->TxLengthErrors +
316 pstats->TxUnderrun + pstats->TxFramesAbortedDueToXSCollisions;
317 ns->rx_errors = pstats->RxDataErrors + pstats->RxJabberErrors +
318 pstats->RxFCSErrors + pstats->RxAlignErrors +
319 pstats->RxSequenceErrors + pstats->RxFrameTooLongErrors +
320 pstats->RxSymbolErrors + pstats->RxRuntErrors;
321
322 ns->multicast = pstats->RxMulticastFramesOK;
323 ns->collisions = pstats->TxTotalCollisions;
324
325
326 ns->rx_length_errors = pstats->RxFrameTooLongErrors +
327 pstats->RxJabberErrors;
328 ns->rx_over_errors = 0;
329 ns->rx_crc_errors = pstats->RxFCSErrors;
330 ns->rx_frame_errors = pstats->RxAlignErrors;
331 ns->rx_fifo_errors = 0;
332 ns->rx_missed_errors = 0;
333
334
335 ns->tx_aborted_errors = pstats->TxFramesAbortedDueToXSCollisions;
336 ns->tx_carrier_errors = 0;
337 ns->tx_fifo_errors = pstats->TxUnderrun;
338 ns->tx_heartbeat_errors = 0;
339 ns->tx_window_errors = pstats->TxLateCollisions;
340 return ns;
341}
342
343static u32 get_msglevel(struct net_device *dev)
344{
345 struct adapter *adapter = dev->ml_priv;
346
347 return adapter->msg_enable;
348}
349
350static void set_msglevel(struct net_device *dev, u32 val)
351{
352 struct adapter *adapter = dev->ml_priv;
353
354 adapter->msg_enable = val;
355}
356
357static char stats_strings[][ETH_GSTRING_LEN] = {
358 "TxOctetsOK",
359 "TxOctetsBad",
360 "TxUnicastFramesOK",
361 "TxMulticastFramesOK",
362 "TxBroadcastFramesOK",
363 "TxPauseFrames",
364 "TxFramesWithDeferredXmissions",
365 "TxLateCollisions",
366 "TxTotalCollisions",
367 "TxFramesAbortedDueToXSCollisions",
368 "TxUnderrun",
369 "TxLengthErrors",
370 "TxInternalMACXmitError",
371 "TxFramesWithExcessiveDeferral",
372 "TxFCSErrors",
373 "TxJumboFramesOk",
374 "TxJumboOctetsOk",
375
376 "RxOctetsOK",
377 "RxOctetsBad",
378 "RxUnicastFramesOK",
379 "RxMulticastFramesOK",
380 "RxBroadcastFramesOK",
381 "RxPauseFrames",
382 "RxFCSErrors",
383 "RxAlignErrors",
384 "RxSymbolErrors",
385 "RxDataErrors",
386 "RxSequenceErrors",
387 "RxRuntErrors",
388 "RxJabberErrors",
389 "RxInternalMACRcvError",
390 "RxInRangeLengthErrors",
391 "RxOutOfRangeLengthField",
392 "RxFrameTooLongErrors",
393 "RxJumboFramesOk",
394 "RxJumboOctetsOk",
395
396
397 "RxCsumGood",
398 "TxCsumOffload",
399 "TxTso",
400 "RxVlan",
401 "TxVlan",
402 "TxNeedHeadroom",
403
404
405 "rx drops",
406 "pure_rsps",
407 "unhandled irqs",
408 "respQ_empty",
409 "respQ_overflow",
410 "freelistQ_empty",
411 "pkt_too_big",
412 "pkt_mismatch",
413 "cmdQ_full0",
414 "cmdQ_full1",
415
416 "espi_DIP2ParityErr",
417 "espi_DIP4Err",
418 "espi_RxDrops",
419 "espi_TxDrops",
420 "espi_RxOvfl",
421 "espi_ParityErr"
422};
423
424#define T2_REGMAP_SIZE (3 * 1024)
425
426static int get_regs_len(struct net_device *dev)
427{
428 return T2_REGMAP_SIZE;
429}
430
431static void get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
432{
433 struct adapter *adapter = dev->ml_priv;
434
435 strcpy(info->driver, DRV_NAME);
436 strcpy(info->version, DRV_VERSION);
437 strcpy(info->fw_version, "N/A");
438 strcpy(info->bus_info, pci_name(adapter->pdev));
439}
440
441static int get_sset_count(struct net_device *dev, int sset)
442{
443 switch (sset) {
444 case ETH_SS_STATS:
445 return ARRAY_SIZE(stats_strings);
446 default:
447 return -EOPNOTSUPP;
448 }
449}
450
451static void get_strings(struct net_device *dev, u32 stringset, u8 *data)
452{
453 if (stringset == ETH_SS_STATS)
454 memcpy(data, stats_strings, sizeof(stats_strings));
455}
456
457static void get_stats(struct net_device *dev, struct ethtool_stats *stats,
458 u64 *data)
459{
460 struct adapter *adapter = dev->ml_priv;
461 struct cmac *mac = adapter->port[dev->if_port].mac;
462 const struct cmac_statistics *s;
463 const struct sge_intr_counts *t;
464 struct sge_port_stats ss;
465
466 s = mac->ops->statistics_update(mac, MAC_STATS_UPDATE_FULL);
467 t = t1_sge_get_intr_counts(adapter->sge);
468 t1_sge_get_port_stats(adapter->sge, dev->if_port, &ss);
469
470 *data++ = s->TxOctetsOK;
471 *data++ = s->TxOctetsBad;
472 *data++ = s->TxUnicastFramesOK;
473 *data++ = s->TxMulticastFramesOK;
474 *data++ = s->TxBroadcastFramesOK;
475 *data++ = s->TxPauseFrames;
476 *data++ = s->TxFramesWithDeferredXmissions;
477 *data++ = s->TxLateCollisions;
478 *data++ = s->TxTotalCollisions;
479 *data++ = s->TxFramesAbortedDueToXSCollisions;
480 *data++ = s->TxUnderrun;
481 *data++ = s->TxLengthErrors;
482 *data++ = s->TxInternalMACXmitError;
483 *data++ = s->TxFramesWithExcessiveDeferral;
484 *data++ = s->TxFCSErrors;
485 *data++ = s->TxJumboFramesOK;
486 *data++ = s->TxJumboOctetsOK;
487
488 *data++ = s->RxOctetsOK;
489 *data++ = s->RxOctetsBad;
490 *data++ = s->RxUnicastFramesOK;
491 *data++ = s->RxMulticastFramesOK;
492 *data++ = s->RxBroadcastFramesOK;
493 *data++ = s->RxPauseFrames;
494 *data++ = s->RxFCSErrors;
495 *data++ = s->RxAlignErrors;
496 *data++ = s->RxSymbolErrors;
497 *data++ = s->RxDataErrors;
498 *data++ = s->RxSequenceErrors;
499 *data++ = s->RxRuntErrors;
500 *data++ = s->RxJabberErrors;
501 *data++ = s->RxInternalMACRcvError;
502 *data++ = s->RxInRangeLengthErrors;
503 *data++ = s->RxOutOfRangeLengthField;
504 *data++ = s->RxFrameTooLongErrors;
505 *data++ = s->RxJumboFramesOK;
506 *data++ = s->RxJumboOctetsOK;
507
508 *data++ = ss.rx_cso_good;
509 *data++ = ss.tx_cso;
510 *data++ = ss.tx_tso;
511 *data++ = ss.vlan_xtract;
512 *data++ = ss.vlan_insert;
513 *data++ = ss.tx_need_hdrroom;
514
515 *data++ = t->rx_drops;
516 *data++ = t->pure_rsps;
517 *data++ = t->unhandled_irqs;
518 *data++ = t->respQ_empty;
519 *data++ = t->respQ_overflow;
520 *data++ = t->freelistQ_empty;
521 *data++ = t->pkt_too_big;
522 *data++ = t->pkt_mismatch;
523 *data++ = t->cmdQ_full[0];
524 *data++ = t->cmdQ_full[1];
525
526 if (adapter->espi) {
527 const struct espi_intr_counts *e;
528
529 e = t1_espi_get_intr_counts(adapter->espi);
530 *data++ = e->DIP2_parity_err;
531 *data++ = e->DIP4_err;
532 *data++ = e->rx_drops;
533 *data++ = e->tx_drops;
534 *data++ = e->rx_ovflw;
535 *data++ = e->parity_err;
536 }
537}
538
539static inline void reg_block_dump(struct adapter *ap, void *buf,
540 unsigned int start, unsigned int end)
541{
542 u32 *p = buf + start;
543
544 for ( ; start <= end; start += sizeof(u32))
545 *p++ = readl(ap->regs + start);
546}
547
548static void get_regs(struct net_device *dev, struct ethtool_regs *regs,
549 void *buf)
550{
551 struct adapter *ap = dev->ml_priv;
552
553
554
555
556 regs->version = 2;
557
558 memset(buf, 0, T2_REGMAP_SIZE);
559 reg_block_dump(ap, buf, 0, A_SG_RESPACCUTIMER);
560 reg_block_dump(ap, buf, A_MC3_CFG, A_MC4_INT_CAUSE);
561 reg_block_dump(ap, buf, A_TPI_ADDR, A_TPI_PAR);
562 reg_block_dump(ap, buf, A_TP_IN_CONFIG, A_TP_TX_DROP_COUNT);
563 reg_block_dump(ap, buf, A_RAT_ROUTE_CONTROL, A_RAT_INTR_CAUSE);
564 reg_block_dump(ap, buf, A_CSPI_RX_AE_WM, A_CSPI_INTR_ENABLE);
565 reg_block_dump(ap, buf, A_ESPI_SCH_TOKEN0, A_ESPI_GOSTAT);
566 reg_block_dump(ap, buf, A_ULP_ULIMIT, A_ULP_PIO_CTRL);
567 reg_block_dump(ap, buf, A_PL_ENABLE, A_PL_CAUSE);
568 reg_block_dump(ap, buf, A_MC5_CONFIG, A_MC5_MASK_WRITE_CMD);
569}
570
571static int get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
572{
573 struct adapter *adapter = dev->ml_priv;
574 struct port_info *p = &adapter->port[dev->if_port];
575
576 cmd->supported = p->link_config.supported;
577 cmd->advertising = p->link_config.advertising;
578
579 if (netif_carrier_ok(dev)) {
580 ethtool_cmd_speed_set(cmd, p->link_config.speed);
581 cmd->duplex = p->link_config.duplex;
582 } else {
583 ethtool_cmd_speed_set(cmd, -1);
584 cmd->duplex = -1;
585 }
586
587 cmd->port = (cmd->supported & SUPPORTED_TP) ? PORT_TP : PORT_FIBRE;
588 cmd->phy_address = p->phy->mdio.prtad;
589 cmd->transceiver = XCVR_EXTERNAL;
590 cmd->autoneg = p->link_config.autoneg;
591 cmd->maxtxpkt = 0;
592 cmd->maxrxpkt = 0;
593 return 0;
594}
595
596static int speed_duplex_to_caps(int speed, int duplex)
597{
598 int cap = 0;
599
600 switch (speed) {
601 case SPEED_10:
602 if (duplex == DUPLEX_FULL)
603 cap = SUPPORTED_10baseT_Full;
604 else
605 cap = SUPPORTED_10baseT_Half;
606 break;
607 case SPEED_100:
608 if (duplex == DUPLEX_FULL)
609 cap = SUPPORTED_100baseT_Full;
610 else
611 cap = SUPPORTED_100baseT_Half;
612 break;
613 case SPEED_1000:
614 if (duplex == DUPLEX_FULL)
615 cap = SUPPORTED_1000baseT_Full;
616 else
617 cap = SUPPORTED_1000baseT_Half;
618 break;
619 case SPEED_10000:
620 if (duplex == DUPLEX_FULL)
621 cap = SUPPORTED_10000baseT_Full;
622 }
623 return cap;
624}
625
626#define ADVERTISED_MASK (ADVERTISED_10baseT_Half | ADVERTISED_10baseT_Full | \
627 ADVERTISED_100baseT_Half | ADVERTISED_100baseT_Full | \
628 ADVERTISED_1000baseT_Half | ADVERTISED_1000baseT_Full | \
629 ADVERTISED_10000baseT_Full)
630
631static int set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
632{
633 struct adapter *adapter = dev->ml_priv;
634 struct port_info *p = &adapter->port[dev->if_port];
635 struct link_config *lc = &p->link_config;
636
637 if (!(lc->supported & SUPPORTED_Autoneg))
638 return -EOPNOTSUPP;
639
640 if (cmd->autoneg == AUTONEG_DISABLE) {
641 u32 speed = ethtool_cmd_speed(cmd);
642 int cap = speed_duplex_to_caps(speed, cmd->duplex);
643
644 if (!(lc->supported & cap) || (speed == SPEED_1000))
645 return -EINVAL;
646 lc->requested_speed = speed;
647 lc->requested_duplex = cmd->duplex;
648 lc->advertising = 0;
649 } else {
650 cmd->advertising &= ADVERTISED_MASK;
651 if (cmd->advertising & (cmd->advertising - 1))
652 cmd->advertising = lc->supported;
653 cmd->advertising &= lc->supported;
654 if (!cmd->advertising)
655 return -EINVAL;
656 lc->requested_speed = SPEED_INVALID;
657 lc->requested_duplex = DUPLEX_INVALID;
658 lc->advertising = cmd->advertising | ADVERTISED_Autoneg;
659 }
660 lc->autoneg = cmd->autoneg;
661 if (netif_running(dev))
662 t1_link_start(p->phy, p->mac, lc);
663 return 0;
664}
665
666static void get_pauseparam(struct net_device *dev,
667 struct ethtool_pauseparam *epause)
668{
669 struct adapter *adapter = dev->ml_priv;
670 struct port_info *p = &adapter->port[dev->if_port];
671
672 epause->autoneg = (p->link_config.requested_fc & PAUSE_AUTONEG) != 0;
673 epause->rx_pause = (p->link_config.fc & PAUSE_RX) != 0;
674 epause->tx_pause = (p->link_config.fc & PAUSE_TX) != 0;
675}
676
677static int set_pauseparam(struct net_device *dev,
678 struct ethtool_pauseparam *epause)
679{
680 struct adapter *adapter = dev->ml_priv;
681 struct port_info *p = &adapter->port[dev->if_port];
682 struct link_config *lc = &p->link_config;
683
684 if (epause->autoneg == AUTONEG_DISABLE)
685 lc->requested_fc = 0;
686 else if (lc->supported & SUPPORTED_Autoneg)
687 lc->requested_fc = PAUSE_AUTONEG;
688 else
689 return -EINVAL;
690
691 if (epause->rx_pause)
692 lc->requested_fc |= PAUSE_RX;
693 if (epause->tx_pause)
694 lc->requested_fc |= PAUSE_TX;
695 if (lc->autoneg == AUTONEG_ENABLE) {
696 if (netif_running(dev))
697 t1_link_start(p->phy, p->mac, lc);
698 } else {
699 lc->fc = lc->requested_fc & (PAUSE_RX | PAUSE_TX);
700 if (netif_running(dev))
701 p->mac->ops->set_speed_duplex_fc(p->mac, -1, -1,
702 lc->fc);
703 }
704 return 0;
705}
706
707static void get_sge_param(struct net_device *dev, struct ethtool_ringparam *e)
708{
709 struct adapter *adapter = dev->ml_priv;
710 int jumbo_fl = t1_is_T1B(adapter) ? 1 : 0;
711
712 e->rx_max_pending = MAX_RX_BUFFERS;
713 e->rx_mini_max_pending = 0;
714 e->rx_jumbo_max_pending = MAX_RX_JUMBO_BUFFERS;
715 e->tx_max_pending = MAX_CMDQ_ENTRIES;
716
717 e->rx_pending = adapter->params.sge.freelQ_size[!jumbo_fl];
718 e->rx_mini_pending = 0;
719 e->rx_jumbo_pending = adapter->params.sge.freelQ_size[jumbo_fl];
720 e->tx_pending = adapter->params.sge.cmdQ_size[0];
721}
722
723static int set_sge_param(struct net_device *dev, struct ethtool_ringparam *e)
724{
725 struct adapter *adapter = dev->ml_priv;
726 int jumbo_fl = t1_is_T1B(adapter) ? 1 : 0;
727
728 if (e->rx_pending > MAX_RX_BUFFERS || e->rx_mini_pending ||
729 e->rx_jumbo_pending > MAX_RX_JUMBO_BUFFERS ||
730 e->tx_pending > MAX_CMDQ_ENTRIES ||
731 e->rx_pending < MIN_FL_ENTRIES ||
732 e->rx_jumbo_pending < MIN_FL_ENTRIES ||
733 e->tx_pending < (adapter->params.nports + 1) * (MAX_SKB_FRAGS + 1))
734 return -EINVAL;
735
736 if (adapter->flags & FULL_INIT_DONE)
737 return -EBUSY;
738
739 adapter->params.sge.freelQ_size[!jumbo_fl] = e->rx_pending;
740 adapter->params.sge.freelQ_size[jumbo_fl] = e->rx_jumbo_pending;
741 adapter->params.sge.cmdQ_size[0] = e->tx_pending;
742 adapter->params.sge.cmdQ_size[1] = e->tx_pending > MAX_CMDQ1_ENTRIES ?
743 MAX_CMDQ1_ENTRIES : e->tx_pending;
744 return 0;
745}
746
747static int set_coalesce(struct net_device *dev, struct ethtool_coalesce *c)
748{
749 struct adapter *adapter = dev->ml_priv;
750
751 adapter->params.sge.rx_coalesce_usecs = c->rx_coalesce_usecs;
752 adapter->params.sge.coalesce_enable = c->use_adaptive_rx_coalesce;
753 adapter->params.sge.sample_interval_usecs = c->rate_sample_interval;
754 t1_sge_set_coalesce_params(adapter->sge, &adapter->params.sge);
755 return 0;
756}
757
758static int get_coalesce(struct net_device *dev, struct ethtool_coalesce *c)
759{
760 struct adapter *adapter = dev->ml_priv;
761
762 c->rx_coalesce_usecs = adapter->params.sge.rx_coalesce_usecs;
763 c->rate_sample_interval = adapter->params.sge.sample_interval_usecs;
764 c->use_adaptive_rx_coalesce = adapter->params.sge.coalesce_enable;
765 return 0;
766}
767
768static int get_eeprom_len(struct net_device *dev)
769{
770 struct adapter *adapter = dev->ml_priv;
771
772 return t1_is_asic(adapter) ? EEPROM_SIZE : 0;
773}
774
775#define EEPROM_MAGIC(ap) \
776 (PCI_VENDOR_ID_CHELSIO | ((ap)->params.chip_version << 16))
777
778static int get_eeprom(struct net_device *dev, struct ethtool_eeprom *e,
779 u8 *data)
780{
781 int i;
782 u8 buf[EEPROM_SIZE] __attribute__((aligned(4)));
783 struct adapter *adapter = dev->ml_priv;
784
785 e->magic = EEPROM_MAGIC(adapter);
786 for (i = e->offset & ~3; i < e->offset + e->len; i += sizeof(u32))
787 t1_seeprom_read(adapter, i, (__le32 *)&buf[i]);
788 memcpy(data, buf + e->offset, e->len);
789 return 0;
790}
791
792static const struct ethtool_ops t1_ethtool_ops = {
793 .get_settings = get_settings,
794 .set_settings = set_settings,
795 .get_drvinfo = get_drvinfo,
796 .get_msglevel = get_msglevel,
797 .set_msglevel = set_msglevel,
798 .get_ringparam = get_sge_param,
799 .set_ringparam = set_sge_param,
800 .get_coalesce = get_coalesce,
801 .set_coalesce = set_coalesce,
802 .get_eeprom_len = get_eeprom_len,
803 .get_eeprom = get_eeprom,
804 .get_pauseparam = get_pauseparam,
805 .set_pauseparam = set_pauseparam,
806 .get_link = ethtool_op_get_link,
807 .get_strings = get_strings,
808 .get_sset_count = get_sset_count,
809 .get_ethtool_stats = get_stats,
810 .get_regs_len = get_regs_len,
811 .get_regs = get_regs,
812};
813
814static int t1_ioctl(struct net_device *dev, struct ifreq *req, int cmd)
815{
816 struct adapter *adapter = dev->ml_priv;
817 struct mdio_if_info *mdio = &adapter->port[dev->if_port].phy->mdio;
818
819 return mdio_mii_ioctl(mdio, if_mii(req), cmd);
820}
821
822static int t1_change_mtu(struct net_device *dev, int new_mtu)
823{
824 int ret;
825 struct adapter *adapter = dev->ml_priv;
826 struct cmac *mac = adapter->port[dev->if_port].mac;
827
828 if (!mac->ops->set_mtu)
829 return -EOPNOTSUPP;
830 if (new_mtu < 68)
831 return -EINVAL;
832 if ((ret = mac->ops->set_mtu(mac, new_mtu)))
833 return ret;
834 dev->mtu = new_mtu;
835 return 0;
836}
837
838static int t1_set_mac_addr(struct net_device *dev, void *p)
839{
840 struct adapter *adapter = dev->ml_priv;
841 struct cmac *mac = adapter->port[dev->if_port].mac;
842 struct sockaddr *addr = p;
843
844 if (!mac->ops->macaddress_set)
845 return -EOPNOTSUPP;
846
847 memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
848 mac->ops->macaddress_set(mac, dev->dev_addr);
849 return 0;
850}
851
852#if defined(CONFIG_VLAN_8021Q) || defined(CONFIG_VLAN_8021Q_MODULE)
853static void t1_vlan_rx_register(struct net_device *dev,
854 struct vlan_group *grp)
855{
856 struct adapter *adapter = dev->ml_priv;
857
858 spin_lock_irq(&adapter->async_lock);
859 adapter->vlan_grp = grp;
860 t1_set_vlan_accel(adapter, grp != NULL);
861 spin_unlock_irq(&adapter->async_lock);
862}
863#endif
864
865#ifdef CONFIG_NET_POLL_CONTROLLER
866static void t1_netpoll(struct net_device *dev)
867{
868 unsigned long flags;
869 struct adapter *adapter = dev->ml_priv;
870
871 local_irq_save(flags);
872 t1_interrupt(adapter->pdev->irq, adapter);
873 local_irq_restore(flags);
874}
875#endif
876
877
878
879
880
881static void mac_stats_task(struct work_struct *work)
882{
883 int i;
884 struct adapter *adapter =
885 container_of(work, struct adapter, stats_update_task.work);
886
887 for_each_port(adapter, i) {
888 struct port_info *p = &adapter->port[i];
889
890 if (netif_running(p->dev))
891 p->mac->ops->statistics_update(p->mac,
892 MAC_STATS_UPDATE_FAST);
893 }
894
895
896 spin_lock(&adapter->work_lock);
897 if (adapter->open_device_map & PORT_MASK)
898 schedule_mac_stats_update(adapter,
899 adapter->params.stats_update_period);
900 spin_unlock(&adapter->work_lock);
901}
902
903
904
905
906static void ext_intr_task(struct work_struct *work)
907{
908 struct adapter *adapter =
909 container_of(work, struct adapter, ext_intr_handler_task);
910
911 t1_elmer0_ext_intr_handler(adapter);
912
913
914 spin_lock_irq(&adapter->async_lock);
915 adapter->slow_intr_mask |= F_PL_INTR_EXT;
916 writel(F_PL_INTR_EXT, adapter->regs + A_PL_CAUSE);
917 writel(adapter->slow_intr_mask | F_PL_INTR_SGE_DATA,
918 adapter->regs + A_PL_ENABLE);
919 spin_unlock_irq(&adapter->async_lock);
920}
921
922
923
924
925void t1_elmer0_ext_intr(struct adapter *adapter)
926{
927
928
929
930
931
932 adapter->slow_intr_mask &= ~F_PL_INTR_EXT;
933 writel(adapter->slow_intr_mask | F_PL_INTR_SGE_DATA,
934 adapter->regs + A_PL_ENABLE);
935 schedule_work(&adapter->ext_intr_handler_task);
936}
937
938void t1_fatal_err(struct adapter *adapter)
939{
940 if (adapter->flags & FULL_INIT_DONE) {
941 t1_sge_stop(adapter->sge);
942 t1_interrupts_disable(adapter);
943 }
944 pr_alert("%s: encountered fatal error, operation suspended\n",
945 adapter->name);
946}
947
948static const struct net_device_ops cxgb_netdev_ops = {
949 .ndo_open = cxgb_open,
950 .ndo_stop = cxgb_close,
951 .ndo_start_xmit = t1_start_xmit,
952 .ndo_get_stats = t1_get_stats,
953 .ndo_validate_addr = eth_validate_addr,
954 .ndo_set_multicast_list = t1_set_rxmode,
955 .ndo_do_ioctl = t1_ioctl,
956 .ndo_change_mtu = t1_change_mtu,
957 .ndo_set_mac_address = t1_set_mac_addr,
958#if defined(CONFIG_VLAN_8021Q) || defined(CONFIG_VLAN_8021Q_MODULE)
959 .ndo_vlan_rx_register = t1_vlan_rx_register,
960#endif
961#ifdef CONFIG_NET_POLL_CONTROLLER
962 .ndo_poll_controller = t1_netpoll,
963#endif
964};
965
966static int __devinit init_one(struct pci_dev *pdev,
967 const struct pci_device_id *ent)
968{
969 static int version_printed;
970
971 int i, err, pci_using_dac = 0;
972 unsigned long mmio_start, mmio_len;
973 const struct board_info *bi;
974 struct adapter *adapter = NULL;
975 struct port_info *pi;
976
977 if (!version_printed) {
978 printk(KERN_INFO "%s - version %s\n", DRV_DESCRIPTION,
979 DRV_VERSION);
980 ++version_printed;
981 }
982
983 err = pci_enable_device(pdev);
984 if (err)
985 return err;
986
987 if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
988 pr_err("%s: cannot find PCI device memory base address\n",
989 pci_name(pdev));
990 err = -ENODEV;
991 goto out_disable_pdev;
992 }
993
994 if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64))) {
995 pci_using_dac = 1;
996
997 if (pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64))) {
998 pr_err("%s: unable to obtain 64-bit DMA for "
999 "consistent allocations\n", pci_name(pdev));
1000 err = -ENODEV;
1001 goto out_disable_pdev;
1002 }
1003
1004 } else if ((err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32))) != 0) {
1005 pr_err("%s: no usable DMA configuration\n", pci_name(pdev));
1006 goto out_disable_pdev;
1007 }
1008
1009 err = pci_request_regions(pdev, DRV_NAME);
1010 if (err) {
1011 pr_err("%s: cannot obtain PCI resources\n", pci_name(pdev));
1012 goto out_disable_pdev;
1013 }
1014
1015 pci_set_master(pdev);
1016
1017 mmio_start = pci_resource_start(pdev, 0);
1018 mmio_len = pci_resource_len(pdev, 0);
1019 bi = t1_get_board_info(ent->driver_data);
1020
1021 for (i = 0; i < bi->port_number; ++i) {
1022 struct net_device *netdev;
1023
1024 netdev = alloc_etherdev(adapter ? 0 : sizeof(*adapter));
1025 if (!netdev) {
1026 err = -ENOMEM;
1027 goto out_free_dev;
1028 }
1029
1030 SET_NETDEV_DEV(netdev, &pdev->dev);
1031
1032 if (!adapter) {
1033 adapter = netdev_priv(netdev);
1034 adapter->pdev = pdev;
1035 adapter->port[0].dev = netdev;
1036
1037 adapter->regs = ioremap(mmio_start, mmio_len);
1038 if (!adapter->regs) {
1039 pr_err("%s: cannot map device registers\n",
1040 pci_name(pdev));
1041 err = -ENOMEM;
1042 goto out_free_dev;
1043 }
1044
1045 if (t1_get_board_rev(adapter, bi, &adapter->params)) {
1046 err = -ENODEV;
1047 goto out_free_dev;
1048 }
1049
1050 adapter->name = pci_name(pdev);
1051 adapter->msg_enable = dflt_msg_enable;
1052 adapter->mmio_len = mmio_len;
1053
1054 spin_lock_init(&adapter->tpi_lock);
1055 spin_lock_init(&adapter->work_lock);
1056 spin_lock_init(&adapter->async_lock);
1057 spin_lock_init(&adapter->mac_lock);
1058
1059 INIT_WORK(&adapter->ext_intr_handler_task,
1060 ext_intr_task);
1061 INIT_DELAYED_WORK(&adapter->stats_update_task,
1062 mac_stats_task);
1063
1064 pci_set_drvdata(pdev, netdev);
1065 }
1066
1067 pi = &adapter->port[i];
1068 pi->dev = netdev;
1069 netif_carrier_off(netdev);
1070 netdev->irq = pdev->irq;
1071 netdev->if_port = i;
1072 netdev->mem_start = mmio_start;
1073 netdev->mem_end = mmio_start + mmio_len - 1;
1074 netdev->ml_priv = adapter;
1075 netdev->hw_features |= NETIF_F_SG | NETIF_F_IP_CSUM |
1076 NETIF_F_RXCSUM;
1077 netdev->features |= NETIF_F_SG | NETIF_F_IP_CSUM |
1078 NETIF_F_RXCSUM | NETIF_F_LLTX;
1079
1080 if (pci_using_dac)
1081 netdev->features |= NETIF_F_HIGHDMA;
1082 if (vlan_tso_capable(adapter)) {
1083#if defined(CONFIG_VLAN_8021Q) || defined(CONFIG_VLAN_8021Q_MODULE)
1084 netdev->features |=
1085 NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX;
1086#endif
1087
1088
1089 if (!(is_T2(adapter)) || bi->port_number != 4) {
1090 netdev->hw_features |= NETIF_F_TSO;
1091 netdev->features |= NETIF_F_TSO;
1092 }
1093 }
1094
1095 netdev->netdev_ops = &cxgb_netdev_ops;
1096 netdev->hard_header_len += (netdev->hw_features & NETIF_F_TSO) ?
1097 sizeof(struct cpl_tx_pkt_lso) : sizeof(struct cpl_tx_pkt);
1098
1099 netif_napi_add(netdev, &adapter->napi, t1_poll, 64);
1100
1101 SET_ETHTOOL_OPS(netdev, &t1_ethtool_ops);
1102 }
1103
1104 if (t1_init_sw_modules(adapter, bi) < 0) {
1105 err = -ENODEV;
1106 goto out_free_dev;
1107 }
1108
1109
1110
1111
1112
1113
1114
1115 for (i = 0; i < bi->port_number; ++i) {
1116 err = register_netdev(adapter->port[i].dev);
1117 if (err)
1118 pr_warning("%s: cannot register net device %s, skipping\n",
1119 pci_name(pdev), adapter->port[i].dev->name);
1120 else {
1121
1122
1123
1124
1125 if (!adapter->registered_device_map)
1126 adapter->name = adapter->port[i].dev->name;
1127
1128 __set_bit(i, &adapter->registered_device_map);
1129 }
1130 }
1131 if (!adapter->registered_device_map) {
1132 pr_err("%s: could not register any net devices\n",
1133 pci_name(pdev));
1134 goto out_release_adapter_res;
1135 }
1136
1137 printk(KERN_INFO "%s: %s (rev %d), %s %dMHz/%d-bit\n", adapter->name,
1138 bi->desc, adapter->params.chip_revision,
1139 adapter->params.pci.is_pcix ? "PCIX" : "PCI",
1140 adapter->params.pci.speed, adapter->params.pci.width);
1141
1142
1143
1144
1145 if (t1powersave)
1146 adapter->t1powersave = LCLOCK;
1147 else
1148 adapter->t1powersave = HCLOCK;
1149 if (t1_is_T1B(adapter))
1150 t1_clock(adapter, t1powersave);
1151
1152 return 0;
1153
1154out_release_adapter_res:
1155 t1_free_sw_modules(adapter);
1156out_free_dev:
1157 if (adapter) {
1158 if (adapter->regs)
1159 iounmap(adapter->regs);
1160 for (i = bi->port_number - 1; i >= 0; --i)
1161 if (adapter->port[i].dev)
1162 free_netdev(adapter->port[i].dev);
1163 }
1164 pci_release_regions(pdev);
1165out_disable_pdev:
1166 pci_disable_device(pdev);
1167 pci_set_drvdata(pdev, NULL);
1168 return err;
1169}
1170
1171static void bit_bang(struct adapter *adapter, int bitdata, int nbits)
1172{
1173 int data;
1174 int i;
1175 u32 val;
1176
1177 enum {
1178 S_CLOCK = 1 << 3,
1179 S_DATA = 1 << 4
1180 };
1181
1182 for (i = (nbits - 1); i > -1; i--) {
1183
1184 udelay(50);
1185
1186 data = ((bitdata >> i) & 0x1);
1187 __t1_tpi_read(adapter, A_ELMER0_GPO, &val);
1188
1189 if (data)
1190 val |= S_DATA;
1191 else
1192 val &= ~S_DATA;
1193
1194 udelay(50);
1195
1196
1197 val &= ~S_CLOCK;
1198 __t1_tpi_write(adapter, A_ELMER0_GPO, val);
1199
1200 udelay(50);
1201
1202
1203 val |= S_CLOCK;
1204 __t1_tpi_write(adapter, A_ELMER0_GPO, val);
1205
1206 }
1207}
1208
1209static int t1_clock(struct adapter *adapter, int mode)
1210{
1211 u32 val;
1212 int M_CORE_VAL;
1213 int M_MEM_VAL;
1214
1215 enum {
1216 M_CORE_BITS = 9,
1217 T_CORE_VAL = 0,
1218 T_CORE_BITS = 2,
1219 N_CORE_VAL = 0,
1220 N_CORE_BITS = 2,
1221 M_MEM_BITS = 9,
1222 T_MEM_VAL = 0,
1223 T_MEM_BITS = 2,
1224 N_MEM_VAL = 0,
1225 N_MEM_BITS = 2,
1226 NP_LOAD = 1 << 17,
1227 S_LOAD_MEM = 1 << 5,
1228 S_LOAD_CORE = 1 << 6,
1229 S_CLOCK = 1 << 3
1230 };
1231
1232 if (!t1_is_T1B(adapter))
1233 return -ENODEV;
1234
1235 if (mode & 2)
1236 return 0;
1237
1238 if ((adapter->t1powersave & 1) == (mode & 1))
1239 return -EALREADY;
1240
1241 if ((mode & 1) == HCLOCK) {
1242 M_CORE_VAL = 0x14;
1243 M_MEM_VAL = 0x18;
1244 adapter->t1powersave = HCLOCK;
1245 } else {
1246 M_CORE_VAL = 0xe;
1247 M_MEM_VAL = 0x10;
1248 adapter->t1powersave = LCLOCK;
1249 }
1250
1251
1252 spin_lock(&adapter->tpi_lock);
1253
1254
1255 __t1_tpi_read(adapter, A_ELMER0_GPO, &val);
1256 val |= NP_LOAD;
1257 udelay(50);
1258 __t1_tpi_write(adapter, A_ELMER0_GPO, val);
1259 udelay(50);
1260 __t1_tpi_read(adapter, A_ELMER0_GPO, &val);
1261 val &= ~S_LOAD_CORE;
1262 val &= ~S_CLOCK;
1263 __t1_tpi_write(adapter, A_ELMER0_GPO, val);
1264 udelay(50);
1265
1266
1267 bit_bang(adapter, T_CORE_VAL, T_CORE_BITS);
1268 bit_bang(adapter, N_CORE_VAL, N_CORE_BITS);
1269 bit_bang(adapter, M_CORE_VAL, M_CORE_BITS);
1270 udelay(50);
1271
1272
1273 __t1_tpi_read(adapter, A_ELMER0_GPO, &val);
1274 val |= S_LOAD_CORE;
1275 udelay(50);
1276 __t1_tpi_write(adapter, A_ELMER0_GPO, val);
1277 udelay(50);
1278 __t1_tpi_read(adapter, A_ELMER0_GPO, &val);
1279 val &= ~S_LOAD_CORE;
1280 udelay(50);
1281 __t1_tpi_write(adapter, A_ELMER0_GPO, val);
1282 udelay(50);
1283
1284
1285 __t1_tpi_read(adapter, A_ELMER0_GPO, &val);
1286 val |= NP_LOAD;
1287 udelay(50);
1288 __t1_tpi_write(adapter, A_ELMER0_GPO, val);
1289 udelay(50);
1290 __t1_tpi_read(adapter, A_ELMER0_GPO, &val);
1291 val &= ~S_LOAD_MEM;
1292 val &= ~S_CLOCK;
1293 udelay(50);
1294 __t1_tpi_write(adapter, A_ELMER0_GPO, val);
1295 udelay(50);
1296
1297
1298 bit_bang(adapter, T_MEM_VAL, T_MEM_BITS);
1299 bit_bang(adapter, N_MEM_VAL, N_MEM_BITS);
1300 bit_bang(adapter, M_MEM_VAL, M_MEM_BITS);
1301 udelay(50);
1302
1303
1304 __t1_tpi_read(adapter, A_ELMER0_GPO, &val);
1305 val |= S_LOAD_MEM;
1306 udelay(50);
1307 __t1_tpi_write(adapter, A_ELMER0_GPO, val);
1308 udelay(50);
1309 __t1_tpi_read(adapter, A_ELMER0_GPO, &val);
1310 val &= ~S_LOAD_MEM;
1311 udelay(50);
1312 __t1_tpi_write(adapter, A_ELMER0_GPO, val);
1313
1314 spin_unlock(&adapter->tpi_lock);
1315
1316 return 0;
1317}
1318
1319static inline void t1_sw_reset(struct pci_dev *pdev)
1320{
1321 pci_write_config_dword(pdev, A_PCICFG_PM_CSR, 3);
1322 pci_write_config_dword(pdev, A_PCICFG_PM_CSR, 0);
1323}
1324
1325static void __devexit remove_one(struct pci_dev *pdev)
1326{
1327 struct net_device *dev = pci_get_drvdata(pdev);
1328 struct adapter *adapter = dev->ml_priv;
1329 int i;
1330
1331 for_each_port(adapter, i) {
1332 if (test_bit(i, &adapter->registered_device_map))
1333 unregister_netdev(adapter->port[i].dev);
1334 }
1335
1336 t1_free_sw_modules(adapter);
1337 iounmap(adapter->regs);
1338
1339 while (--i >= 0) {
1340 if (adapter->port[i].dev)
1341 free_netdev(adapter->port[i].dev);
1342 }
1343
1344 pci_release_regions(pdev);
1345 pci_disable_device(pdev);
1346 pci_set_drvdata(pdev, NULL);
1347 t1_sw_reset(pdev);
1348}
1349
1350static struct pci_driver driver = {
1351 .name = DRV_NAME,
1352 .id_table = t1_pci_tbl,
1353 .probe = init_one,
1354 .remove = __devexit_p(remove_one),
1355};
1356
1357static int __init t1_init_module(void)
1358{
1359 return pci_register_driver(&driver);
1360}
1361
1362static void __exit t1_cleanup_module(void)
1363{
1364 pci_unregister_driver(&driver);
1365}
1366
1367module_init(t1_init_module);
1368module_exit(t1_cleanup_module);
1369
