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38#include "common.h"
39#include <linux/module.h>
40#include <linux/pci.h>
41#include <linux/netdevice.h>
42#include <linux/etherdevice.h>
43#include <linux/if_vlan.h>
44#include <linux/mii.h>
45#include <linux/sockios.h>
46#include <linux/dma-mapping.h>
47#include <linux/uaccess.h>
48
49#include "cpl5_cmd.h"
50#include "regs.h"
51#include "gmac.h"
52#include "cphy.h"
53#include "sge.h"
54#include "tp.h"
55#include "espi.h"
56#include "elmer0.h"
57
58#include <linux/workqueue.h>
59
60static inline void schedule_mac_stats_update(struct adapter *ap, int secs)
61{
62 schedule_delayed_work(&ap->stats_update_task, secs * HZ);
63}
64
65static inline void cancel_mac_stats_update(struct adapter *ap)
66{
67 cancel_delayed_work(&ap->stats_update_task);
68}
69
70#define MAX_CMDQ_ENTRIES 16384
71#define MAX_CMDQ1_ENTRIES 1024
72#define MAX_RX_BUFFERS 16384
73#define MAX_RX_JUMBO_BUFFERS 16384
74#define MAX_TX_BUFFERS_HIGH 16384U
75#define MAX_TX_BUFFERS_LOW 1536U
76#define MAX_TX_BUFFERS 1460U
77#define MIN_FL_ENTRIES 32
78
79#define DFLT_MSG_ENABLE (NETIF_MSG_DRV | NETIF_MSG_PROBE | NETIF_MSG_LINK | \
80 NETIF_MSG_TIMER | NETIF_MSG_IFDOWN | NETIF_MSG_IFUP |\
81 NETIF_MSG_RX_ERR | NETIF_MSG_TX_ERR)
82
83
84
85
86
87#define EEPROM_SIZE 32
88
89MODULE_DESCRIPTION(DRV_DESCRIPTION);
90MODULE_AUTHOR("Chelsio Communications");
91MODULE_LICENSE("GPL");
92
93static int dflt_msg_enable = DFLT_MSG_ENABLE;
94
95module_param(dflt_msg_enable, int, 0);
96MODULE_PARM_DESC(dflt_msg_enable, "Chelsio T1 default message enable bitmap");
97
98#define HCLOCK 0x0
99#define LCLOCK 0x1
100
101
102static int t1_clock(struct adapter *adapter, int mode);
103static int t1powersave = 1;
104
105module_param(t1powersave, int, 0);
106MODULE_PARM_DESC(t1powersave, "Enable/Disable T1 powersaving mode");
107
108static int disable_msi = 0;
109module_param(disable_msi, int, 0);
110MODULE_PARM_DESC(disable_msi, "Disable Message Signaled Interrupt (MSI)");
111
112
113
114
115static void t1_set_rxmode(struct net_device *dev)
116{
117 struct adapter *adapter = dev->ml_priv;
118 struct cmac *mac = adapter->port[dev->if_port].mac;
119 struct t1_rx_mode rm;
120
121 rm.dev = dev;
122 mac->ops->set_rx_mode(mac, &rm);
123}
124
125static void link_report(struct port_info *p)
126{
127 if (!netif_carrier_ok(p->dev))
128 netdev_info(p->dev, "link down\n");
129 else {
130 const char *s = "10Mbps";
131
132 switch (p->link_config.speed) {
133 case SPEED_10000: s = "10Gbps"; break;
134 case SPEED_1000: s = "1000Mbps"; break;
135 case SPEED_100: s = "100Mbps"; break;
136 }
137
138 netdev_info(p->dev, "link up, %s, %s-duplex\n",
139 s, p->link_config.duplex == DUPLEX_FULL
140 ? "full" : "half");
141 }
142}
143
144void t1_link_negotiated(struct adapter *adapter, int port_id, int link_stat,
145 int speed, int duplex, int pause)
146{
147 struct port_info *p = &adapter->port[port_id];
148
149 if (link_stat != netif_carrier_ok(p->dev)) {
150 if (link_stat)
151 netif_carrier_on(p->dev);
152 else
153 netif_carrier_off(p->dev);
154 link_report(p);
155
156
157 if ((speed > 0) && (adapter->params.nports > 1)) {
158 unsigned int sched_speed = 10;
159 switch (speed) {
160 case SPEED_1000:
161 sched_speed = 1000;
162 break;
163 case SPEED_100:
164 sched_speed = 100;
165 break;
166 case SPEED_10:
167 sched_speed = 10;
168 break;
169 }
170 t1_sched_update_parms(adapter->sge, port_id, 0, sched_speed);
171 }
172 }
173}
174
175static void link_start(struct port_info *p)
176{
177 struct cmac *mac = p->mac;
178
179 mac->ops->reset(mac);
180 if (mac->ops->macaddress_set)
181 mac->ops->macaddress_set(mac, p->dev->dev_addr);
182 t1_set_rxmode(p->dev);
183 t1_link_start(p->phy, mac, &p->link_config);
184 mac->ops->enable(mac, MAC_DIRECTION_RX | MAC_DIRECTION_TX);
185}
186
187static void enable_hw_csum(struct adapter *adapter)
188{
189 if (adapter->port[0].dev->hw_features & NETIF_F_TSO)
190 t1_tp_set_ip_checksum_offload(adapter->tp, 1);
191 t1_tp_set_tcp_checksum_offload(adapter->tp, 1);
192}
193
194
195
196
197
198static int cxgb_up(struct adapter *adapter)
199{
200 int err = 0;
201
202 if (!(adapter->flags & FULL_INIT_DONE)) {
203 err = t1_init_hw_modules(adapter);
204 if (err)
205 goto out_err;
206
207 enable_hw_csum(adapter);
208 adapter->flags |= FULL_INIT_DONE;
209 }
210
211 t1_interrupts_clear(adapter);
212
213 adapter->params.has_msi = !disable_msi && !pci_enable_msi(adapter->pdev);
214 err = request_threaded_irq(adapter->pdev->irq, t1_interrupt,
215 t1_interrupt_thread,
216 adapter->params.has_msi ? 0 : IRQF_SHARED,
217 adapter->name, adapter);
218 if (err) {
219 if (adapter->params.has_msi)
220 pci_disable_msi(adapter->pdev);
221
222 goto out_err;
223 }
224
225 t1_sge_start(adapter->sge);
226 t1_interrupts_enable(adapter);
227out_err:
228 return err;
229}
230
231
232
233
234static void cxgb_down(struct adapter *adapter)
235{
236 t1_sge_stop(adapter->sge);
237 t1_interrupts_disable(adapter);
238 free_irq(adapter->pdev->irq, adapter);
239 if (adapter->params.has_msi)
240 pci_disable_msi(adapter->pdev);
241}
242
243static int cxgb_open(struct net_device *dev)
244{
245 int err;
246 struct adapter *adapter = dev->ml_priv;
247 int other_ports = adapter->open_device_map & PORT_MASK;
248
249 napi_enable(&adapter->napi);
250 if (!adapter->open_device_map && (err = cxgb_up(adapter)) < 0) {
251 napi_disable(&adapter->napi);
252 return err;
253 }
254
255 __set_bit(dev->if_port, &adapter->open_device_map);
256 link_start(&adapter->port[dev->if_port]);
257 netif_start_queue(dev);
258 if (!other_ports && adapter->params.stats_update_period)
259 schedule_mac_stats_update(adapter,
260 adapter->params.stats_update_period);
261
262 t1_vlan_mode(adapter, dev->features);
263 return 0;
264}
265
266static int cxgb_close(struct net_device *dev)
267{
268 struct adapter *adapter = dev->ml_priv;
269 struct port_info *p = &adapter->port[dev->if_port];
270 struct cmac *mac = p->mac;
271
272 netif_stop_queue(dev);
273 napi_disable(&adapter->napi);
274 mac->ops->disable(mac, MAC_DIRECTION_TX | MAC_DIRECTION_RX);
275 netif_carrier_off(dev);
276
277 clear_bit(dev->if_port, &adapter->open_device_map);
278 if (adapter->params.stats_update_period &&
279 !(adapter->open_device_map & PORT_MASK)) {
280
281 smp_mb__after_atomic();
282 spin_lock(&adapter->work_lock);
283 spin_unlock(&adapter->work_lock);
284 cancel_mac_stats_update(adapter);
285 }
286
287 if (!adapter->open_device_map)
288 cxgb_down(adapter);
289 return 0;
290}
291
292static struct net_device_stats *t1_get_stats(struct net_device *dev)
293{
294 struct adapter *adapter = dev->ml_priv;
295 struct port_info *p = &adapter->port[dev->if_port];
296 struct net_device_stats *ns = &dev->stats;
297 const struct cmac_statistics *pstats;
298
299
300 pstats = p->mac->ops->statistics_update(p->mac,
301 MAC_STATS_UPDATE_FULL);
302
303 ns->tx_packets = pstats->TxUnicastFramesOK +
304 pstats->TxMulticastFramesOK + pstats->TxBroadcastFramesOK;
305
306 ns->rx_packets = pstats->RxUnicastFramesOK +
307 pstats->RxMulticastFramesOK + pstats->RxBroadcastFramesOK;
308
309 ns->tx_bytes = pstats->TxOctetsOK;
310 ns->rx_bytes = pstats->RxOctetsOK;
311
312 ns->tx_errors = pstats->TxLateCollisions + pstats->TxLengthErrors +
313 pstats->TxUnderrun + pstats->TxFramesAbortedDueToXSCollisions;
314 ns->rx_errors = pstats->RxDataErrors + pstats->RxJabberErrors +
315 pstats->RxFCSErrors + pstats->RxAlignErrors +
316 pstats->RxSequenceErrors + pstats->RxFrameTooLongErrors +
317 pstats->RxSymbolErrors + pstats->RxRuntErrors;
318
319 ns->multicast = pstats->RxMulticastFramesOK;
320 ns->collisions = pstats->TxTotalCollisions;
321
322
323 ns->rx_length_errors = pstats->RxFrameTooLongErrors +
324 pstats->RxJabberErrors;
325 ns->rx_over_errors = 0;
326 ns->rx_crc_errors = pstats->RxFCSErrors;
327 ns->rx_frame_errors = pstats->RxAlignErrors;
328 ns->rx_fifo_errors = 0;
329 ns->rx_missed_errors = 0;
330
331
332 ns->tx_aborted_errors = pstats->TxFramesAbortedDueToXSCollisions;
333 ns->tx_carrier_errors = 0;
334 ns->tx_fifo_errors = pstats->TxUnderrun;
335 ns->tx_heartbeat_errors = 0;
336 ns->tx_window_errors = pstats->TxLateCollisions;
337 return ns;
338}
339
340static u32 get_msglevel(struct net_device *dev)
341{
342 struct adapter *adapter = dev->ml_priv;
343
344 return adapter->msg_enable;
345}
346
347static void set_msglevel(struct net_device *dev, u32 val)
348{
349 struct adapter *adapter = dev->ml_priv;
350
351 adapter->msg_enable = val;
352}
353
354static const char stats_strings[][ETH_GSTRING_LEN] = {
355 "TxOctetsOK",
356 "TxOctetsBad",
357 "TxUnicastFramesOK",
358 "TxMulticastFramesOK",
359 "TxBroadcastFramesOK",
360 "TxPauseFrames",
361 "TxFramesWithDeferredXmissions",
362 "TxLateCollisions",
363 "TxTotalCollisions",
364 "TxFramesAbortedDueToXSCollisions",
365 "TxUnderrun",
366 "TxLengthErrors",
367 "TxInternalMACXmitError",
368 "TxFramesWithExcessiveDeferral",
369 "TxFCSErrors",
370 "TxJumboFramesOk",
371 "TxJumboOctetsOk",
372
373 "RxOctetsOK",
374 "RxOctetsBad",
375 "RxUnicastFramesOK",
376 "RxMulticastFramesOK",
377 "RxBroadcastFramesOK",
378 "RxPauseFrames",
379 "RxFCSErrors",
380 "RxAlignErrors",
381 "RxSymbolErrors",
382 "RxDataErrors",
383 "RxSequenceErrors",
384 "RxRuntErrors",
385 "RxJabberErrors",
386 "RxInternalMACRcvError",
387 "RxInRangeLengthErrors",
388 "RxOutOfRangeLengthField",
389 "RxFrameTooLongErrors",
390 "RxJumboFramesOk",
391 "RxJumboOctetsOk",
392
393
394 "RxCsumGood",
395 "TxCsumOffload",
396 "TxTso",
397 "RxVlan",
398 "TxVlan",
399 "TxNeedHeadroom",
400
401
402 "rx drops",
403 "pure_rsps",
404 "unhandled irqs",
405 "respQ_empty",
406 "respQ_overflow",
407 "freelistQ_empty",
408 "pkt_too_big",
409 "pkt_mismatch",
410 "cmdQ_full0",
411 "cmdQ_full1",
412
413 "espi_DIP2ParityErr",
414 "espi_DIP4Err",
415 "espi_RxDrops",
416 "espi_TxDrops",
417 "espi_RxOvfl",
418 "espi_ParityErr"
419};
420
421#define T2_REGMAP_SIZE (3 * 1024)
422
423static int get_regs_len(struct net_device *dev)
424{
425 return T2_REGMAP_SIZE;
426}
427
428static void get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
429{
430 struct adapter *adapter = dev->ml_priv;
431
432 strlcpy(info->driver, DRV_NAME, sizeof(info->driver));
433 strlcpy(info->bus_info, pci_name(adapter->pdev),
434 sizeof(info->bus_info));
435}
436
437static int get_sset_count(struct net_device *dev, int sset)
438{
439 switch (sset) {
440 case ETH_SS_STATS:
441 return ARRAY_SIZE(stats_strings);
442 default:
443 return -EOPNOTSUPP;
444 }
445}
446
447static void get_strings(struct net_device *dev, u32 stringset, u8 *data)
448{
449 if (stringset == ETH_SS_STATS)
450 memcpy(data, stats_strings, sizeof(stats_strings));
451}
452
453static void get_stats(struct net_device *dev, struct ethtool_stats *stats,
454 u64 *data)
455{
456 struct adapter *adapter = dev->ml_priv;
457 struct cmac *mac = adapter->port[dev->if_port].mac;
458 const struct cmac_statistics *s;
459 const struct sge_intr_counts *t;
460 struct sge_port_stats ss;
461
462 s = mac->ops->statistics_update(mac, MAC_STATS_UPDATE_FULL);
463 t = t1_sge_get_intr_counts(adapter->sge);
464 t1_sge_get_port_stats(adapter->sge, dev->if_port, &ss);
465
466 *data++ = s->TxOctetsOK;
467 *data++ = s->TxOctetsBad;
468 *data++ = s->TxUnicastFramesOK;
469 *data++ = s->TxMulticastFramesOK;
470 *data++ = s->TxBroadcastFramesOK;
471 *data++ = s->TxPauseFrames;
472 *data++ = s->TxFramesWithDeferredXmissions;
473 *data++ = s->TxLateCollisions;
474 *data++ = s->TxTotalCollisions;
475 *data++ = s->TxFramesAbortedDueToXSCollisions;
476 *data++ = s->TxUnderrun;
477 *data++ = s->TxLengthErrors;
478 *data++ = s->TxInternalMACXmitError;
479 *data++ = s->TxFramesWithExcessiveDeferral;
480 *data++ = s->TxFCSErrors;
481 *data++ = s->TxJumboFramesOK;
482 *data++ = s->TxJumboOctetsOK;
483
484 *data++ = s->RxOctetsOK;
485 *data++ = s->RxOctetsBad;
486 *data++ = s->RxUnicastFramesOK;
487 *data++ = s->RxMulticastFramesOK;
488 *data++ = s->RxBroadcastFramesOK;
489 *data++ = s->RxPauseFrames;
490 *data++ = s->RxFCSErrors;
491 *data++ = s->RxAlignErrors;
492 *data++ = s->RxSymbolErrors;
493 *data++ = s->RxDataErrors;
494 *data++ = s->RxSequenceErrors;
495 *data++ = s->RxRuntErrors;
496 *data++ = s->RxJabberErrors;
497 *data++ = s->RxInternalMACRcvError;
498 *data++ = s->RxInRangeLengthErrors;
499 *data++ = s->RxOutOfRangeLengthField;
500 *data++ = s->RxFrameTooLongErrors;
501 *data++ = s->RxJumboFramesOK;
502 *data++ = s->RxJumboOctetsOK;
503
504 *data++ = ss.rx_cso_good;
505 *data++ = ss.tx_cso;
506 *data++ = ss.tx_tso;
507 *data++ = ss.vlan_xtract;
508 *data++ = ss.vlan_insert;
509 *data++ = ss.tx_need_hdrroom;
510
511 *data++ = t->rx_drops;
512 *data++ = t->pure_rsps;
513 *data++ = t->unhandled_irqs;
514 *data++ = t->respQ_empty;
515 *data++ = t->respQ_overflow;
516 *data++ = t->freelistQ_empty;
517 *data++ = t->pkt_too_big;
518 *data++ = t->pkt_mismatch;
519 *data++ = t->cmdQ_full[0];
520 *data++ = t->cmdQ_full[1];
521
522 if (adapter->espi) {
523 const struct espi_intr_counts *e;
524
525 e = t1_espi_get_intr_counts(adapter->espi);
526 *data++ = e->DIP2_parity_err;
527 *data++ = e->DIP4_err;
528 *data++ = e->rx_drops;
529 *data++ = e->tx_drops;
530 *data++ = e->rx_ovflw;
531 *data++ = e->parity_err;
532 }
533}
534
535static inline void reg_block_dump(struct adapter *ap, void *buf,
536 unsigned int start, unsigned int end)
537{
538 u32 *p = buf + start;
539
540 for ( ; start <= end; start += sizeof(u32))
541 *p++ = readl(ap->regs + start);
542}
543
544static void get_regs(struct net_device *dev, struct ethtool_regs *regs,
545 void *buf)
546{
547 struct adapter *ap = dev->ml_priv;
548
549
550
551
552 regs->version = 2;
553
554 memset(buf, 0, T2_REGMAP_SIZE);
555 reg_block_dump(ap, buf, 0, A_SG_RESPACCUTIMER);
556 reg_block_dump(ap, buf, A_MC3_CFG, A_MC4_INT_CAUSE);
557 reg_block_dump(ap, buf, A_TPI_ADDR, A_TPI_PAR);
558 reg_block_dump(ap, buf, A_TP_IN_CONFIG, A_TP_TX_DROP_COUNT);
559 reg_block_dump(ap, buf, A_RAT_ROUTE_CONTROL, A_RAT_INTR_CAUSE);
560 reg_block_dump(ap, buf, A_CSPI_RX_AE_WM, A_CSPI_INTR_ENABLE);
561 reg_block_dump(ap, buf, A_ESPI_SCH_TOKEN0, A_ESPI_GOSTAT);
562 reg_block_dump(ap, buf, A_ULP_ULIMIT, A_ULP_PIO_CTRL);
563 reg_block_dump(ap, buf, A_PL_ENABLE, A_PL_CAUSE);
564 reg_block_dump(ap, buf, A_MC5_CONFIG, A_MC5_MASK_WRITE_CMD);
565}
566
567static int get_link_ksettings(struct net_device *dev,
568 struct ethtool_link_ksettings *cmd)
569{
570 struct adapter *adapter = dev->ml_priv;
571 struct port_info *p = &adapter->port[dev->if_port];
572 u32 supported, advertising;
573
574 supported = p->link_config.supported;
575 advertising = p->link_config.advertising;
576
577 if (netif_carrier_ok(dev)) {
578 cmd->base.speed = p->link_config.speed;
579 cmd->base.duplex = p->link_config.duplex;
580 } else {
581 cmd->base.speed = SPEED_UNKNOWN;
582 cmd->base.duplex = DUPLEX_UNKNOWN;
583 }
584
585 cmd->base.port = (supported & SUPPORTED_TP) ? PORT_TP : PORT_FIBRE;
586 cmd->base.phy_address = p->phy->mdio.prtad;
587 cmd->base.autoneg = p->link_config.autoneg;
588
589 ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.supported,
590 supported);
591 ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.advertising,
592 advertising);
593
594 return 0;
595}
596
597static int speed_duplex_to_caps(int speed, int duplex)
598{
599 int cap = 0;
600
601 switch (speed) {
602 case SPEED_10:
603 if (duplex == DUPLEX_FULL)
604 cap = SUPPORTED_10baseT_Full;
605 else
606 cap = SUPPORTED_10baseT_Half;
607 break;
608 case SPEED_100:
609 if (duplex == DUPLEX_FULL)
610 cap = SUPPORTED_100baseT_Full;
611 else
612 cap = SUPPORTED_100baseT_Half;
613 break;
614 case SPEED_1000:
615 if (duplex == DUPLEX_FULL)
616 cap = SUPPORTED_1000baseT_Full;
617 else
618 cap = SUPPORTED_1000baseT_Half;
619 break;
620 case SPEED_10000:
621 if (duplex == DUPLEX_FULL)
622 cap = SUPPORTED_10000baseT_Full;
623 }
624 return cap;
625}
626
627#define ADVERTISED_MASK (ADVERTISED_10baseT_Half | ADVERTISED_10baseT_Full | \
628 ADVERTISED_100baseT_Half | ADVERTISED_100baseT_Full | \
629 ADVERTISED_1000baseT_Half | ADVERTISED_1000baseT_Full | \
630 ADVERTISED_10000baseT_Full)
631
632static int set_link_ksettings(struct net_device *dev,
633 const struct ethtool_link_ksettings *cmd)
634{
635 struct adapter *adapter = dev->ml_priv;
636 struct port_info *p = &adapter->port[dev->if_port];
637 struct link_config *lc = &p->link_config;
638 u32 advertising;
639
640 ethtool_convert_link_mode_to_legacy_u32(&advertising,
641 cmd->link_modes.advertising);
642
643 if (!(lc->supported & SUPPORTED_Autoneg))
644 return -EOPNOTSUPP;
645
646 if (cmd->base.autoneg == AUTONEG_DISABLE) {
647 u32 speed = cmd->base.speed;
648 int cap = speed_duplex_to_caps(speed, cmd->base.duplex);
649
650 if (!(lc->supported & cap) || (speed == SPEED_1000))
651 return -EINVAL;
652 lc->requested_speed = speed;
653 lc->requested_duplex = cmd->base.duplex;
654 lc->advertising = 0;
655 } else {
656 advertising &= ADVERTISED_MASK;
657 if (advertising & (advertising - 1))
658 advertising = lc->supported;
659 advertising &= lc->supported;
660 if (!advertising)
661 return -EINVAL;
662 lc->requested_speed = SPEED_INVALID;
663 lc->requested_duplex = DUPLEX_INVALID;
664 lc->advertising = advertising | ADVERTISED_Autoneg;
665 }
666 lc->autoneg = cmd->base.autoneg;
667 if (netif_running(dev))
668 t1_link_start(p->phy, p->mac, lc);
669 return 0;
670}
671
672static void get_pauseparam(struct net_device *dev,
673 struct ethtool_pauseparam *epause)
674{
675 struct adapter *adapter = dev->ml_priv;
676 struct port_info *p = &adapter->port[dev->if_port];
677
678 epause->autoneg = (p->link_config.requested_fc & PAUSE_AUTONEG) != 0;
679 epause->rx_pause = (p->link_config.fc & PAUSE_RX) != 0;
680 epause->tx_pause = (p->link_config.fc & PAUSE_TX) != 0;
681}
682
683static int set_pauseparam(struct net_device *dev,
684 struct ethtool_pauseparam *epause)
685{
686 struct adapter *adapter = dev->ml_priv;
687 struct port_info *p = &adapter->port[dev->if_port];
688 struct link_config *lc = &p->link_config;
689
690 if (epause->autoneg == AUTONEG_DISABLE)
691 lc->requested_fc = 0;
692 else if (lc->supported & SUPPORTED_Autoneg)
693 lc->requested_fc = PAUSE_AUTONEG;
694 else
695 return -EINVAL;
696
697 if (epause->rx_pause)
698 lc->requested_fc |= PAUSE_RX;
699 if (epause->tx_pause)
700 lc->requested_fc |= PAUSE_TX;
701 if (lc->autoneg == AUTONEG_ENABLE) {
702 if (netif_running(dev))
703 t1_link_start(p->phy, p->mac, lc);
704 } else {
705 lc->fc = lc->requested_fc & (PAUSE_RX | PAUSE_TX);
706 if (netif_running(dev))
707 p->mac->ops->set_speed_duplex_fc(p->mac, -1, -1,
708 lc->fc);
709 }
710 return 0;
711}
712
713static void get_sge_param(struct net_device *dev, struct ethtool_ringparam *e)
714{
715 struct adapter *adapter = dev->ml_priv;
716 int jumbo_fl = t1_is_T1B(adapter) ? 1 : 0;
717
718 e->rx_max_pending = MAX_RX_BUFFERS;
719 e->rx_jumbo_max_pending = MAX_RX_JUMBO_BUFFERS;
720 e->tx_max_pending = MAX_CMDQ_ENTRIES;
721
722 e->rx_pending = adapter->params.sge.freelQ_size[!jumbo_fl];
723 e->rx_jumbo_pending = adapter->params.sge.freelQ_size[jumbo_fl];
724 e->tx_pending = adapter->params.sge.cmdQ_size[0];
725}
726
727static int set_sge_param(struct net_device *dev, struct ethtool_ringparam *e)
728{
729 struct adapter *adapter = dev->ml_priv;
730 int jumbo_fl = t1_is_T1B(adapter) ? 1 : 0;
731
732 if (e->rx_pending > MAX_RX_BUFFERS || e->rx_mini_pending ||
733 e->rx_jumbo_pending > MAX_RX_JUMBO_BUFFERS ||
734 e->tx_pending > MAX_CMDQ_ENTRIES ||
735 e->rx_pending < MIN_FL_ENTRIES ||
736 e->rx_jumbo_pending < MIN_FL_ENTRIES ||
737 e->tx_pending < (adapter->params.nports + 1) * (MAX_SKB_FRAGS + 1))
738 return -EINVAL;
739
740 if (adapter->flags & FULL_INIT_DONE)
741 return -EBUSY;
742
743 adapter->params.sge.freelQ_size[!jumbo_fl] = e->rx_pending;
744 adapter->params.sge.freelQ_size[jumbo_fl] = e->rx_jumbo_pending;
745 adapter->params.sge.cmdQ_size[0] = e->tx_pending;
746 adapter->params.sge.cmdQ_size[1] = e->tx_pending > MAX_CMDQ1_ENTRIES ?
747 MAX_CMDQ1_ENTRIES : e->tx_pending;
748 return 0;
749}
750
751static int set_coalesce(struct net_device *dev, struct ethtool_coalesce *c,
752 struct kernel_ethtool_coalesce *kernel_coal,
753 struct netlink_ext_ack *extack)
754{
755 struct adapter *adapter = dev->ml_priv;
756
757 adapter->params.sge.rx_coalesce_usecs = c->rx_coalesce_usecs;
758 adapter->params.sge.coalesce_enable = c->use_adaptive_rx_coalesce;
759 adapter->params.sge.sample_interval_usecs = c->rate_sample_interval;
760 t1_sge_set_coalesce_params(adapter->sge, &adapter->params.sge);
761 return 0;
762}
763
764static int get_coalesce(struct net_device *dev, struct ethtool_coalesce *c,
765 struct kernel_ethtool_coalesce *kernel_coal,
766 struct netlink_ext_ack *extack)
767{
768 struct adapter *adapter = dev->ml_priv;
769
770 c->rx_coalesce_usecs = adapter->params.sge.rx_coalesce_usecs;
771 c->rate_sample_interval = adapter->params.sge.sample_interval_usecs;
772 c->use_adaptive_rx_coalesce = adapter->params.sge.coalesce_enable;
773 return 0;
774}
775
776static int get_eeprom_len(struct net_device *dev)
777{
778 struct adapter *adapter = dev->ml_priv;
779
780 return t1_is_asic(adapter) ? EEPROM_SIZE : 0;
781}
782
783#define EEPROM_MAGIC(ap) \
784 (PCI_VENDOR_ID_CHELSIO | ((ap)->params.chip_version << 16))
785
786static int get_eeprom(struct net_device *dev, struct ethtool_eeprom *e,
787 u8 *data)
788{
789 int i;
790 u8 buf[EEPROM_SIZE] __attribute__((aligned(4)));
791 struct adapter *adapter = dev->ml_priv;
792
793 e->magic = EEPROM_MAGIC(adapter);
794 for (i = e->offset & ~3; i < e->offset + e->len; i += sizeof(u32))
795 t1_seeprom_read(adapter, i, (__le32 *)&buf[i]);
796 memcpy(data, buf + e->offset, e->len);
797 return 0;
798}
799
800static const struct ethtool_ops t1_ethtool_ops = {
801 .supported_coalesce_params = ETHTOOL_COALESCE_RX_USECS |
802 ETHTOOL_COALESCE_USE_ADAPTIVE_RX |
803 ETHTOOL_COALESCE_RATE_SAMPLE_INTERVAL,
804 .get_drvinfo = get_drvinfo,
805 .get_msglevel = get_msglevel,
806 .set_msglevel = set_msglevel,
807 .get_ringparam = get_sge_param,
808 .set_ringparam = set_sge_param,
809 .get_coalesce = get_coalesce,
810 .set_coalesce = set_coalesce,
811 .get_eeprom_len = get_eeprom_len,
812 .get_eeprom = get_eeprom,
813 .get_pauseparam = get_pauseparam,
814 .set_pauseparam = set_pauseparam,
815 .get_link = ethtool_op_get_link,
816 .get_strings = get_strings,
817 .get_sset_count = get_sset_count,
818 .get_ethtool_stats = get_stats,
819 .get_regs_len = get_regs_len,
820 .get_regs = get_regs,
821 .get_link_ksettings = get_link_ksettings,
822 .set_link_ksettings = set_link_ksettings,
823};
824
825static int t1_ioctl(struct net_device *dev, struct ifreq *req, int cmd)
826{
827 struct adapter *adapter = dev->ml_priv;
828 struct mdio_if_info *mdio = &adapter->port[dev->if_port].phy->mdio;
829
830 return mdio_mii_ioctl(mdio, if_mii(req), cmd);
831}
832
833static int t1_change_mtu(struct net_device *dev, int new_mtu)
834{
835 int ret;
836 struct adapter *adapter = dev->ml_priv;
837 struct cmac *mac = adapter->port[dev->if_port].mac;
838
839 if (!mac->ops->set_mtu)
840 return -EOPNOTSUPP;
841 if ((ret = mac->ops->set_mtu(mac, new_mtu)))
842 return ret;
843 dev->mtu = new_mtu;
844 return 0;
845}
846
847static int t1_set_mac_addr(struct net_device *dev, void *p)
848{
849 struct adapter *adapter = dev->ml_priv;
850 struct cmac *mac = adapter->port[dev->if_port].mac;
851 struct sockaddr *addr = p;
852
853 if (!mac->ops->macaddress_set)
854 return -EOPNOTSUPP;
855
856 memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
857 mac->ops->macaddress_set(mac, dev->dev_addr);
858 return 0;
859}
860
861static netdev_features_t t1_fix_features(struct net_device *dev,
862 netdev_features_t features)
863{
864
865
866
867
868 if (features & NETIF_F_HW_VLAN_CTAG_RX)
869 features |= NETIF_F_HW_VLAN_CTAG_TX;
870 else
871 features &= ~NETIF_F_HW_VLAN_CTAG_TX;
872
873 return features;
874}
875
876static int t1_set_features(struct net_device *dev, netdev_features_t features)
877{
878 netdev_features_t changed = dev->features ^ features;
879 struct adapter *adapter = dev->ml_priv;
880
881 if (changed & NETIF_F_HW_VLAN_CTAG_RX)
882 t1_vlan_mode(adapter, features);
883
884 return 0;
885}
886#ifdef CONFIG_NET_POLL_CONTROLLER
887static void t1_netpoll(struct net_device *dev)
888{
889 unsigned long flags;
890 struct adapter *adapter = dev->ml_priv;
891
892 local_irq_save(flags);
893 t1_interrupt(adapter->pdev->irq, adapter);
894 local_irq_restore(flags);
895}
896#endif
897
898
899
900
901
902static void mac_stats_task(struct work_struct *work)
903{
904 int i;
905 struct adapter *adapter =
906 container_of(work, struct adapter, stats_update_task.work);
907
908 for_each_port(adapter, i) {
909 struct port_info *p = &adapter->port[i];
910
911 if (netif_running(p->dev))
912 p->mac->ops->statistics_update(p->mac,
913 MAC_STATS_UPDATE_FAST);
914 }
915
916
917 spin_lock(&adapter->work_lock);
918 if (adapter->open_device_map & PORT_MASK)
919 schedule_mac_stats_update(adapter,
920 adapter->params.stats_update_period);
921 spin_unlock(&adapter->work_lock);
922}
923
924static const struct net_device_ops cxgb_netdev_ops = {
925 .ndo_open = cxgb_open,
926 .ndo_stop = cxgb_close,
927 .ndo_start_xmit = t1_start_xmit,
928 .ndo_get_stats = t1_get_stats,
929 .ndo_validate_addr = eth_validate_addr,
930 .ndo_set_rx_mode = t1_set_rxmode,
931 .ndo_eth_ioctl = t1_ioctl,
932 .ndo_change_mtu = t1_change_mtu,
933 .ndo_set_mac_address = t1_set_mac_addr,
934 .ndo_fix_features = t1_fix_features,
935 .ndo_set_features = t1_set_features,
936#ifdef CONFIG_NET_POLL_CONTROLLER
937 .ndo_poll_controller = t1_netpoll,
938#endif
939};
940
941static int init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
942{
943 int i, err, pci_using_dac = 0;
944 unsigned long mmio_start, mmio_len;
945 const struct board_info *bi;
946 struct adapter *adapter = NULL;
947 struct port_info *pi;
948
949 err = pci_enable_device(pdev);
950 if (err)
951 return err;
952
953 if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
954 pr_err("%s: cannot find PCI device memory base address\n",
955 pci_name(pdev));
956 err = -ENODEV;
957 goto out_disable_pdev;
958 }
959
960 if (!dma_set_mask(&pdev->dev, DMA_BIT_MASK(64))) {
961 pci_using_dac = 1;
962
963 if (dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(64))) {
964 pr_err("%s: unable to obtain 64-bit DMA for coherent allocations\n",
965 pci_name(pdev));
966 err = -ENODEV;
967 goto out_disable_pdev;
968 }
969
970 } else if ((err = dma_set_mask(&pdev->dev, DMA_BIT_MASK(32))) != 0) {
971 pr_err("%s: no usable DMA configuration\n", pci_name(pdev));
972 goto out_disable_pdev;
973 }
974
975 err = pci_request_regions(pdev, DRV_NAME);
976 if (err) {
977 pr_err("%s: cannot obtain PCI resources\n", pci_name(pdev));
978 goto out_disable_pdev;
979 }
980
981 pci_set_master(pdev);
982
983 mmio_start = pci_resource_start(pdev, 0);
984 mmio_len = pci_resource_len(pdev, 0);
985 bi = t1_get_board_info(ent->driver_data);
986
987 for (i = 0; i < bi->port_number; ++i) {
988 struct net_device *netdev;
989
990 netdev = alloc_etherdev(adapter ? 0 : sizeof(*adapter));
991 if (!netdev) {
992 err = -ENOMEM;
993 goto out_free_dev;
994 }
995
996 SET_NETDEV_DEV(netdev, &pdev->dev);
997
998 if (!adapter) {
999 adapter = netdev_priv(netdev);
1000 adapter->pdev = pdev;
1001 adapter->port[0].dev = netdev;
1002
1003 adapter->regs = ioremap(mmio_start, mmio_len);
1004 if (!adapter->regs) {
1005 pr_err("%s: cannot map device registers\n",
1006 pci_name(pdev));
1007 err = -ENOMEM;
1008 goto out_free_dev;
1009 }
1010
1011 if (t1_get_board_rev(adapter, bi, &adapter->params)) {
1012 err = -ENODEV;
1013 goto out_free_dev;
1014 }
1015
1016 adapter->name = pci_name(pdev);
1017 adapter->msg_enable = dflt_msg_enable;
1018 adapter->mmio_len = mmio_len;
1019
1020 spin_lock_init(&adapter->tpi_lock);
1021 spin_lock_init(&adapter->work_lock);
1022 spin_lock_init(&adapter->async_lock);
1023 spin_lock_init(&adapter->mac_lock);
1024
1025 INIT_DELAYED_WORK(&adapter->stats_update_task,
1026 mac_stats_task);
1027
1028 pci_set_drvdata(pdev, netdev);
1029 }
1030
1031 pi = &adapter->port[i];
1032 pi->dev = netdev;
1033 netif_carrier_off(netdev);
1034 netdev->irq = pdev->irq;
1035 netdev->if_port = i;
1036 netdev->mem_start = mmio_start;
1037 netdev->mem_end = mmio_start + mmio_len - 1;
1038 netdev->ml_priv = adapter;
1039 netdev->hw_features |= NETIF_F_SG | NETIF_F_IP_CSUM |
1040 NETIF_F_RXCSUM;
1041 netdev->features |= NETIF_F_SG | NETIF_F_IP_CSUM |
1042 NETIF_F_RXCSUM | NETIF_F_LLTX;
1043
1044 if (pci_using_dac)
1045 netdev->features |= NETIF_F_HIGHDMA;
1046 if (vlan_tso_capable(adapter)) {
1047 netdev->features |=
1048 NETIF_F_HW_VLAN_CTAG_TX |
1049 NETIF_F_HW_VLAN_CTAG_RX;
1050 netdev->hw_features |= NETIF_F_HW_VLAN_CTAG_RX;
1051
1052
1053 if (!(is_T2(adapter)) || bi->port_number != 4) {
1054 netdev->hw_features |= NETIF_F_TSO;
1055 netdev->features |= NETIF_F_TSO;
1056 }
1057 }
1058
1059 netdev->netdev_ops = &cxgb_netdev_ops;
1060 netdev->hard_header_len += (netdev->hw_features & NETIF_F_TSO) ?
1061 sizeof(struct cpl_tx_pkt_lso) : sizeof(struct cpl_tx_pkt);
1062
1063 netif_napi_add(netdev, &adapter->napi, t1_poll, 64);
1064
1065 netdev->ethtool_ops = &t1_ethtool_ops;
1066
1067 switch (bi->board) {
1068 case CHBT_BOARD_CHT110:
1069 case CHBT_BOARD_N110:
1070 case CHBT_BOARD_N210:
1071 case CHBT_BOARD_CHT210:
1072 netdev->max_mtu = PM3393_MAX_FRAME_SIZE -
1073 (ETH_HLEN + ETH_FCS_LEN);
1074 break;
1075 case CHBT_BOARD_CHN204:
1076 netdev->max_mtu = VSC7326_MAX_MTU;
1077 break;
1078 default:
1079 netdev->max_mtu = ETH_DATA_LEN;
1080 break;
1081 }
1082 }
1083
1084 if (t1_init_sw_modules(adapter, bi) < 0) {
1085 err = -ENODEV;
1086 goto out_free_dev;
1087 }
1088
1089
1090
1091
1092
1093
1094
1095 for (i = 0; i < bi->port_number; ++i) {
1096 err = register_netdev(adapter->port[i].dev);
1097 if (err)
1098 pr_warn("%s: cannot register net device %s, skipping\n",
1099 pci_name(pdev), adapter->port[i].dev->name);
1100 else {
1101
1102
1103
1104
1105 if (!adapter->registered_device_map)
1106 adapter->name = adapter->port[i].dev->name;
1107
1108 __set_bit(i, &adapter->registered_device_map);
1109 }
1110 }
1111 if (!adapter->registered_device_map) {
1112 pr_err("%s: could not register any net devices\n",
1113 pci_name(pdev));
1114 err = -EINVAL;
1115 goto out_release_adapter_res;
1116 }
1117
1118 pr_info("%s: %s (rev %d), %s %dMHz/%d-bit\n",
1119 adapter->name, bi->desc, adapter->params.chip_revision,
1120 adapter->params.pci.is_pcix ? "PCIX" : "PCI",
1121 adapter->params.pci.speed, adapter->params.pci.width);
1122
1123
1124
1125
1126 if (t1powersave)
1127 adapter->t1powersave = LCLOCK;
1128 else
1129 adapter->t1powersave = HCLOCK;
1130 if (t1_is_T1B(adapter))
1131 t1_clock(adapter, t1powersave);
1132
1133 return 0;
1134
1135out_release_adapter_res:
1136 t1_free_sw_modules(adapter);
1137out_free_dev:
1138 if (adapter) {
1139 if (adapter->regs)
1140 iounmap(adapter->regs);
1141 for (i = bi->port_number - 1; i >= 0; --i)
1142 if (adapter->port[i].dev)
1143 free_netdev(adapter->port[i].dev);
1144 }
1145 pci_release_regions(pdev);
1146out_disable_pdev:
1147 pci_disable_device(pdev);
1148 return err;
1149}
1150
1151static void bit_bang(struct adapter *adapter, int bitdata, int nbits)
1152{
1153 int data;
1154 int i;
1155 u32 val;
1156
1157 enum {
1158 S_CLOCK = 1 << 3,
1159 S_DATA = 1 << 4
1160 };
1161
1162 for (i = (nbits - 1); i > -1; i--) {
1163
1164 udelay(50);
1165
1166 data = ((bitdata >> i) & 0x1);
1167 __t1_tpi_read(adapter, A_ELMER0_GPO, &val);
1168
1169 if (data)
1170 val |= S_DATA;
1171 else
1172 val &= ~S_DATA;
1173
1174 udelay(50);
1175
1176
1177 val &= ~S_CLOCK;
1178 __t1_tpi_write(adapter, A_ELMER0_GPO, val);
1179
1180 udelay(50);
1181
1182
1183 val |= S_CLOCK;
1184 __t1_tpi_write(adapter, A_ELMER0_GPO, val);
1185
1186 }
1187}
1188
1189static int t1_clock(struct adapter *adapter, int mode)
1190{
1191 u32 val;
1192 int M_CORE_VAL;
1193 int M_MEM_VAL;
1194
1195 enum {
1196 M_CORE_BITS = 9,
1197 T_CORE_VAL = 0,
1198 T_CORE_BITS = 2,
1199 N_CORE_VAL = 0,
1200 N_CORE_BITS = 2,
1201 M_MEM_BITS = 9,
1202 T_MEM_VAL = 0,
1203 T_MEM_BITS = 2,
1204 N_MEM_VAL = 0,
1205 N_MEM_BITS = 2,
1206 NP_LOAD = 1 << 17,
1207 S_LOAD_MEM = 1 << 5,
1208 S_LOAD_CORE = 1 << 6,
1209 S_CLOCK = 1 << 3
1210 };
1211
1212 if (!t1_is_T1B(adapter))
1213 return -ENODEV;
1214
1215 if (mode & 2)
1216 return 0;
1217
1218 if ((adapter->t1powersave & 1) == (mode & 1))
1219 return -EALREADY;
1220
1221 if ((mode & 1) == HCLOCK) {
1222 M_CORE_VAL = 0x14;
1223 M_MEM_VAL = 0x18;
1224 adapter->t1powersave = HCLOCK;
1225 } else {
1226 M_CORE_VAL = 0xe;
1227 M_MEM_VAL = 0x10;
1228 adapter->t1powersave = LCLOCK;
1229 }
1230
1231
1232 spin_lock(&adapter->tpi_lock);
1233
1234
1235 __t1_tpi_read(adapter, A_ELMER0_GPO, &val);
1236 val |= NP_LOAD;
1237 udelay(50);
1238 __t1_tpi_write(adapter, A_ELMER0_GPO, val);
1239 udelay(50);
1240 __t1_tpi_read(adapter, A_ELMER0_GPO, &val);
1241 val &= ~S_LOAD_CORE;
1242 val &= ~S_CLOCK;
1243 __t1_tpi_write(adapter, A_ELMER0_GPO, val);
1244 udelay(50);
1245
1246
1247 bit_bang(adapter, T_CORE_VAL, T_CORE_BITS);
1248 bit_bang(adapter, N_CORE_VAL, N_CORE_BITS);
1249 bit_bang(adapter, M_CORE_VAL, M_CORE_BITS);
1250 udelay(50);
1251
1252
1253 __t1_tpi_read(adapter, A_ELMER0_GPO, &val);
1254 val |= S_LOAD_CORE;
1255 udelay(50);
1256 __t1_tpi_write(adapter, A_ELMER0_GPO, val);
1257 udelay(50);
1258 __t1_tpi_read(adapter, A_ELMER0_GPO, &val);
1259 val &= ~S_LOAD_CORE;
1260 udelay(50);
1261 __t1_tpi_write(adapter, A_ELMER0_GPO, val);
1262 udelay(50);
1263
1264
1265 __t1_tpi_read(adapter, A_ELMER0_GPO, &val);
1266 val |= NP_LOAD;
1267 udelay(50);
1268 __t1_tpi_write(adapter, A_ELMER0_GPO, val);
1269 udelay(50);
1270 __t1_tpi_read(adapter, A_ELMER0_GPO, &val);
1271 val &= ~S_LOAD_MEM;
1272 val &= ~S_CLOCK;
1273 udelay(50);
1274 __t1_tpi_write(adapter, A_ELMER0_GPO, val);
1275 udelay(50);
1276
1277
1278 bit_bang(adapter, T_MEM_VAL, T_MEM_BITS);
1279 bit_bang(adapter, N_MEM_VAL, N_MEM_BITS);
1280 bit_bang(adapter, M_MEM_VAL, M_MEM_BITS);
1281 udelay(50);
1282
1283
1284 __t1_tpi_read(adapter, A_ELMER0_GPO, &val);
1285 val |= S_LOAD_MEM;
1286 udelay(50);
1287 __t1_tpi_write(adapter, A_ELMER0_GPO, val);
1288 udelay(50);
1289 __t1_tpi_read(adapter, A_ELMER0_GPO, &val);
1290 val &= ~S_LOAD_MEM;
1291 udelay(50);
1292 __t1_tpi_write(adapter, A_ELMER0_GPO, val);
1293
1294 spin_unlock(&adapter->tpi_lock);
1295
1296 return 0;
1297}
1298
1299static inline void t1_sw_reset(struct pci_dev *pdev)
1300{
1301 pci_write_config_dword(pdev, A_PCICFG_PM_CSR, 3);
1302 pci_write_config_dword(pdev, A_PCICFG_PM_CSR, 0);
1303}
1304
1305static void remove_one(struct pci_dev *pdev)
1306{
1307 struct net_device *dev = pci_get_drvdata(pdev);
1308 struct adapter *adapter = dev->ml_priv;
1309 int i;
1310
1311 for_each_port(adapter, i) {
1312 if (test_bit(i, &adapter->registered_device_map))
1313 unregister_netdev(adapter->port[i].dev);
1314 }
1315
1316 t1_free_sw_modules(adapter);
1317 iounmap(adapter->regs);
1318
1319 while (--i >= 0) {
1320 if (adapter->port[i].dev)
1321 free_netdev(adapter->port[i].dev);
1322 }
1323
1324 pci_release_regions(pdev);
1325 pci_disable_device(pdev);
1326 t1_sw_reset(pdev);
1327}
1328
1329static struct pci_driver cxgb_pci_driver = {
1330 .name = DRV_NAME,
1331 .id_table = t1_pci_tbl,
1332 .probe = init_one,
1333 .remove = remove_one,
1334};
1335
1336module_pci_driver(cxgb_pci_driver);
1337
