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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 netdev_info(p->dev, "link down\n");
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 netdev_info(p->dev, "link up, %s, %s-duplex\n",
145 s, p->link_config.duplex == DUPLEX_FULL
146 ? "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
267 t1_vlan_mode(adapter, dev->features);
268 return 0;
269}
270
271static int cxgb_close(struct net_device *dev)
272{
273 struct adapter *adapter = dev->ml_priv;
274 struct port_info *p = &adapter->port[dev->if_port];
275 struct cmac *mac = p->mac;
276
277 netif_stop_queue(dev);
278 napi_disable(&adapter->napi);
279 mac->ops->disable(mac, MAC_DIRECTION_TX | MAC_DIRECTION_RX);
280 netif_carrier_off(dev);
281
282 clear_bit(dev->if_port, &adapter->open_device_map);
283 if (adapter->params.stats_update_period &&
284 !(adapter->open_device_map & PORT_MASK)) {
285
286 smp_mb__after_clear_bit();
287 spin_lock(&adapter->work_lock);
288 spin_unlock(&adapter->work_lock);
289 cancel_mac_stats_update(adapter);
290 }
291
292 if (!adapter->open_device_map)
293 cxgb_down(adapter);
294 return 0;
295}
296
297static struct net_device_stats *t1_get_stats(struct net_device *dev)
298{
299 struct adapter *adapter = dev->ml_priv;
300 struct port_info *p = &adapter->port[dev->if_port];
301 struct net_device_stats *ns = &p->netstats;
302 const struct cmac_statistics *pstats;
303
304
305 pstats = p->mac->ops->statistics_update(p->mac,
306 MAC_STATS_UPDATE_FULL);
307
308 ns->tx_packets = pstats->TxUnicastFramesOK +
309 pstats->TxMulticastFramesOK + pstats->TxBroadcastFramesOK;
310
311 ns->rx_packets = pstats->RxUnicastFramesOK +
312 pstats->RxMulticastFramesOK + pstats->RxBroadcastFramesOK;
313
314 ns->tx_bytes = pstats->TxOctetsOK;
315 ns->rx_bytes = pstats->RxOctetsOK;
316
317 ns->tx_errors = pstats->TxLateCollisions + pstats->TxLengthErrors +
318 pstats->TxUnderrun + pstats->TxFramesAbortedDueToXSCollisions;
319 ns->rx_errors = pstats->RxDataErrors + pstats->RxJabberErrors +
320 pstats->RxFCSErrors + pstats->RxAlignErrors +
321 pstats->RxSequenceErrors + pstats->RxFrameTooLongErrors +
322 pstats->RxSymbolErrors + pstats->RxRuntErrors;
323
324 ns->multicast = pstats->RxMulticastFramesOK;
325 ns->collisions = pstats->TxTotalCollisions;
326
327
328 ns->rx_length_errors = pstats->RxFrameTooLongErrors +
329 pstats->RxJabberErrors;
330 ns->rx_over_errors = 0;
331 ns->rx_crc_errors = pstats->RxFCSErrors;
332 ns->rx_frame_errors = pstats->RxAlignErrors;
333 ns->rx_fifo_errors = 0;
334 ns->rx_missed_errors = 0;
335
336
337 ns->tx_aborted_errors = pstats->TxFramesAbortedDueToXSCollisions;
338 ns->tx_carrier_errors = 0;
339 ns->tx_fifo_errors = pstats->TxUnderrun;
340 ns->tx_heartbeat_errors = 0;
341 ns->tx_window_errors = pstats->TxLateCollisions;
342 return ns;
343}
344
345static u32 get_msglevel(struct net_device *dev)
346{
347 struct adapter *adapter = dev->ml_priv;
348
349 return adapter->msg_enable;
350}
351
352static void set_msglevel(struct net_device *dev, u32 val)
353{
354 struct adapter *adapter = dev->ml_priv;
355
356 adapter->msg_enable = val;
357}
358
359static char stats_strings[][ETH_GSTRING_LEN] = {
360 "TxOctetsOK",
361 "TxOctetsBad",
362 "TxUnicastFramesOK",
363 "TxMulticastFramesOK",
364 "TxBroadcastFramesOK",
365 "TxPauseFrames",
366 "TxFramesWithDeferredXmissions",
367 "TxLateCollisions",
368 "TxTotalCollisions",
369 "TxFramesAbortedDueToXSCollisions",
370 "TxUnderrun",
371 "TxLengthErrors",
372 "TxInternalMACXmitError",
373 "TxFramesWithExcessiveDeferral",
374 "TxFCSErrors",
375 "TxJumboFramesOk",
376 "TxJumboOctetsOk",
377
378 "RxOctetsOK",
379 "RxOctetsBad",
380 "RxUnicastFramesOK",
381 "RxMulticastFramesOK",
382 "RxBroadcastFramesOK",
383 "RxPauseFrames",
384 "RxFCSErrors",
385 "RxAlignErrors",
386 "RxSymbolErrors",
387 "RxDataErrors",
388 "RxSequenceErrors",
389 "RxRuntErrors",
390 "RxJabberErrors",
391 "RxInternalMACRcvError",
392 "RxInRangeLengthErrors",
393 "RxOutOfRangeLengthField",
394 "RxFrameTooLongErrors",
395 "RxJumboFramesOk",
396 "RxJumboOctetsOk",
397
398
399 "RxCsumGood",
400 "TxCsumOffload",
401 "TxTso",
402 "RxVlan",
403 "TxVlan",
404 "TxNeedHeadroom",
405
406
407 "rx drops",
408 "pure_rsps",
409 "unhandled irqs",
410 "respQ_empty",
411 "respQ_overflow",
412 "freelistQ_empty",
413 "pkt_too_big",
414 "pkt_mismatch",
415 "cmdQ_full0",
416 "cmdQ_full1",
417
418 "espi_DIP2ParityErr",
419 "espi_DIP4Err",
420 "espi_RxDrops",
421 "espi_TxDrops",
422 "espi_RxOvfl",
423 "espi_ParityErr"
424};
425
426#define T2_REGMAP_SIZE (3 * 1024)
427
428static int get_regs_len(struct net_device *dev)
429{
430 return T2_REGMAP_SIZE;
431}
432
433static void get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
434{
435 struct adapter *adapter = dev->ml_priv;
436
437 strlcpy(info->driver, DRV_NAME, sizeof(info->driver));
438 strlcpy(info->version, DRV_VERSION, sizeof(info->version));
439 strlcpy(info->bus_info, pci_name(adapter->pdev),
440 sizeof(info->bus_info));
441}
442
443static int get_sset_count(struct net_device *dev, int sset)
444{
445 switch (sset) {
446 case ETH_SS_STATS:
447 return ARRAY_SIZE(stats_strings);
448 default:
449 return -EOPNOTSUPP;
450 }
451}
452
453static void get_strings(struct net_device *dev, u32 stringset, u8 *data)
454{
455 if (stringset == ETH_SS_STATS)
456 memcpy(data, stats_strings, sizeof(stats_strings));
457}
458
459static void get_stats(struct net_device *dev, struct ethtool_stats *stats,
460 u64 *data)
461{
462 struct adapter *adapter = dev->ml_priv;
463 struct cmac *mac = adapter->port[dev->if_port].mac;
464 const struct cmac_statistics *s;
465 const struct sge_intr_counts *t;
466 struct sge_port_stats ss;
467
468 s = mac->ops->statistics_update(mac, MAC_STATS_UPDATE_FULL);
469 t = t1_sge_get_intr_counts(adapter->sge);
470 t1_sge_get_port_stats(adapter->sge, dev->if_port, &ss);
471
472 *data++ = s->TxOctetsOK;
473 *data++ = s->TxOctetsBad;
474 *data++ = s->TxUnicastFramesOK;
475 *data++ = s->TxMulticastFramesOK;
476 *data++ = s->TxBroadcastFramesOK;
477 *data++ = s->TxPauseFrames;
478 *data++ = s->TxFramesWithDeferredXmissions;
479 *data++ = s->TxLateCollisions;
480 *data++ = s->TxTotalCollisions;
481 *data++ = s->TxFramesAbortedDueToXSCollisions;
482 *data++ = s->TxUnderrun;
483 *data++ = s->TxLengthErrors;
484 *data++ = s->TxInternalMACXmitError;
485 *data++ = s->TxFramesWithExcessiveDeferral;
486 *data++ = s->TxFCSErrors;
487 *data++ = s->TxJumboFramesOK;
488 *data++ = s->TxJumboOctetsOK;
489
490 *data++ = s->RxOctetsOK;
491 *data++ = s->RxOctetsBad;
492 *data++ = s->RxUnicastFramesOK;
493 *data++ = s->RxMulticastFramesOK;
494 *data++ = s->RxBroadcastFramesOK;
495 *data++ = s->RxPauseFrames;
496 *data++ = s->RxFCSErrors;
497 *data++ = s->RxAlignErrors;
498 *data++ = s->RxSymbolErrors;
499 *data++ = s->RxDataErrors;
500 *data++ = s->RxSequenceErrors;
501 *data++ = s->RxRuntErrors;
502 *data++ = s->RxJabberErrors;
503 *data++ = s->RxInternalMACRcvError;
504 *data++ = s->RxInRangeLengthErrors;
505 *data++ = s->RxOutOfRangeLengthField;
506 *data++ = s->RxFrameTooLongErrors;
507 *data++ = s->RxJumboFramesOK;
508 *data++ = s->RxJumboOctetsOK;
509
510 *data++ = ss.rx_cso_good;
511 *data++ = ss.tx_cso;
512 *data++ = ss.tx_tso;
513 *data++ = ss.vlan_xtract;
514 *data++ = ss.vlan_insert;
515 *data++ = ss.tx_need_hdrroom;
516
517 *data++ = t->rx_drops;
518 *data++ = t->pure_rsps;
519 *data++ = t->unhandled_irqs;
520 *data++ = t->respQ_empty;
521 *data++ = t->respQ_overflow;
522 *data++ = t->freelistQ_empty;
523 *data++ = t->pkt_too_big;
524 *data++ = t->pkt_mismatch;
525 *data++ = t->cmdQ_full[0];
526 *data++ = t->cmdQ_full[1];
527
528 if (adapter->espi) {
529 const struct espi_intr_counts *e;
530
531 e = t1_espi_get_intr_counts(adapter->espi);
532 *data++ = e->DIP2_parity_err;
533 *data++ = e->DIP4_err;
534 *data++ = e->rx_drops;
535 *data++ = e->tx_drops;
536 *data++ = e->rx_ovflw;
537 *data++ = e->parity_err;
538 }
539}
540
541static inline void reg_block_dump(struct adapter *ap, void *buf,
542 unsigned int start, unsigned int end)
543{
544 u32 *p = buf + start;
545
546 for ( ; start <= end; start += sizeof(u32))
547 *p++ = readl(ap->regs + start);
548}
549
550static void get_regs(struct net_device *dev, struct ethtool_regs *regs,
551 void *buf)
552{
553 struct adapter *ap = dev->ml_priv;
554
555
556
557
558 regs->version = 2;
559
560 memset(buf, 0, T2_REGMAP_SIZE);
561 reg_block_dump(ap, buf, 0, A_SG_RESPACCUTIMER);
562 reg_block_dump(ap, buf, A_MC3_CFG, A_MC4_INT_CAUSE);
563 reg_block_dump(ap, buf, A_TPI_ADDR, A_TPI_PAR);
564 reg_block_dump(ap, buf, A_TP_IN_CONFIG, A_TP_TX_DROP_COUNT);
565 reg_block_dump(ap, buf, A_RAT_ROUTE_CONTROL, A_RAT_INTR_CAUSE);
566 reg_block_dump(ap, buf, A_CSPI_RX_AE_WM, A_CSPI_INTR_ENABLE);
567 reg_block_dump(ap, buf, A_ESPI_SCH_TOKEN0, A_ESPI_GOSTAT);
568 reg_block_dump(ap, buf, A_ULP_ULIMIT, A_ULP_PIO_CTRL);
569 reg_block_dump(ap, buf, A_PL_ENABLE, A_PL_CAUSE);
570 reg_block_dump(ap, buf, A_MC5_CONFIG, A_MC5_MASK_WRITE_CMD);
571}
572
573static int get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
574{
575 struct adapter *adapter = dev->ml_priv;
576 struct port_info *p = &adapter->port[dev->if_port];
577
578 cmd->supported = p->link_config.supported;
579 cmd->advertising = p->link_config.advertising;
580
581 if (netif_carrier_ok(dev)) {
582 ethtool_cmd_speed_set(cmd, p->link_config.speed);
583 cmd->duplex = p->link_config.duplex;
584 } else {
585 ethtool_cmd_speed_set(cmd, -1);
586 cmd->duplex = -1;
587 }
588
589 cmd->port = (cmd->supported & SUPPORTED_TP) ? PORT_TP : PORT_FIBRE;
590 cmd->phy_address = p->phy->mdio.prtad;
591 cmd->transceiver = XCVR_EXTERNAL;
592 cmd->autoneg = p->link_config.autoneg;
593 cmd->maxtxpkt = 0;
594 cmd->maxrxpkt = 0;
595 return 0;
596}
597
598static int speed_duplex_to_caps(int speed, int duplex)
599{
600 int cap = 0;
601
602 switch (speed) {
603 case SPEED_10:
604 if (duplex == DUPLEX_FULL)
605 cap = SUPPORTED_10baseT_Full;
606 else
607 cap = SUPPORTED_10baseT_Half;
608 break;
609 case SPEED_100:
610 if (duplex == DUPLEX_FULL)
611 cap = SUPPORTED_100baseT_Full;
612 else
613 cap = SUPPORTED_100baseT_Half;
614 break;
615 case SPEED_1000:
616 if (duplex == DUPLEX_FULL)
617 cap = SUPPORTED_1000baseT_Full;
618 else
619 cap = SUPPORTED_1000baseT_Half;
620 break;
621 case SPEED_10000:
622 if (duplex == DUPLEX_FULL)
623 cap = SUPPORTED_10000baseT_Full;
624 }
625 return cap;
626}
627
628#define ADVERTISED_MASK (ADVERTISED_10baseT_Half | ADVERTISED_10baseT_Full | \
629 ADVERTISED_100baseT_Half | ADVERTISED_100baseT_Full | \
630 ADVERTISED_1000baseT_Half | ADVERTISED_1000baseT_Full | \
631 ADVERTISED_10000baseT_Full)
632
633static int set_settings(struct net_device *dev, struct ethtool_cmd *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
639 if (!(lc->supported & SUPPORTED_Autoneg))
640 return -EOPNOTSUPP;
641
642 if (cmd->autoneg == AUTONEG_DISABLE) {
643 u32 speed = ethtool_cmd_speed(cmd);
644 int cap = speed_duplex_to_caps(speed, cmd->duplex);
645
646 if (!(lc->supported & cap) || (speed == SPEED_1000))
647 return -EINVAL;
648 lc->requested_speed = speed;
649 lc->requested_duplex = cmd->duplex;
650 lc->advertising = 0;
651 } else {
652 cmd->advertising &= ADVERTISED_MASK;
653 if (cmd->advertising & (cmd->advertising - 1))
654 cmd->advertising = lc->supported;
655 cmd->advertising &= lc->supported;
656 if (!cmd->advertising)
657 return -EINVAL;
658 lc->requested_speed = SPEED_INVALID;
659 lc->requested_duplex = DUPLEX_INVALID;
660 lc->advertising = cmd->advertising | ADVERTISED_Autoneg;
661 }
662 lc->autoneg = cmd->autoneg;
663 if (netif_running(dev))
664 t1_link_start(p->phy, p->mac, lc);
665 return 0;
666}
667
668static void get_pauseparam(struct net_device *dev,
669 struct ethtool_pauseparam *epause)
670{
671 struct adapter *adapter = dev->ml_priv;
672 struct port_info *p = &adapter->port[dev->if_port];
673
674 epause->autoneg = (p->link_config.requested_fc & PAUSE_AUTONEG) != 0;
675 epause->rx_pause = (p->link_config.fc & PAUSE_RX) != 0;
676 epause->tx_pause = (p->link_config.fc & PAUSE_TX) != 0;
677}
678
679static int set_pauseparam(struct net_device *dev,
680 struct ethtool_pauseparam *epause)
681{
682 struct adapter *adapter = dev->ml_priv;
683 struct port_info *p = &adapter->port[dev->if_port];
684 struct link_config *lc = &p->link_config;
685
686 if (epause->autoneg == AUTONEG_DISABLE)
687 lc->requested_fc = 0;
688 else if (lc->supported & SUPPORTED_Autoneg)
689 lc->requested_fc = PAUSE_AUTONEG;
690 else
691 return -EINVAL;
692
693 if (epause->rx_pause)
694 lc->requested_fc |= PAUSE_RX;
695 if (epause->tx_pause)
696 lc->requested_fc |= PAUSE_TX;
697 if (lc->autoneg == AUTONEG_ENABLE) {
698 if (netif_running(dev))
699 t1_link_start(p->phy, p->mac, lc);
700 } else {
701 lc->fc = lc->requested_fc & (PAUSE_RX | PAUSE_TX);
702 if (netif_running(dev))
703 p->mac->ops->set_speed_duplex_fc(p->mac, -1, -1,
704 lc->fc);
705 }
706 return 0;
707}
708
709static void get_sge_param(struct net_device *dev, struct ethtool_ringparam *e)
710{
711 struct adapter *adapter = dev->ml_priv;
712 int jumbo_fl = t1_is_T1B(adapter) ? 1 : 0;
713
714 e->rx_max_pending = MAX_RX_BUFFERS;
715 e->rx_jumbo_max_pending = MAX_RX_JUMBO_BUFFERS;
716 e->tx_max_pending = MAX_CMDQ_ENTRIES;
717
718 e->rx_pending = adapter->params.sge.freelQ_size[!jumbo_fl];
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
852static netdev_features_t t1_fix_features(struct net_device *dev,
853 netdev_features_t features)
854{
855
856
857
858
859 if (features & NETIF_F_HW_VLAN_CTAG_RX)
860 features |= NETIF_F_HW_VLAN_CTAG_TX;
861 else
862 features &= ~NETIF_F_HW_VLAN_CTAG_TX;
863
864 return features;
865}
866
867static int t1_set_features(struct net_device *dev, netdev_features_t features)
868{
869 netdev_features_t changed = dev->features ^ features;
870 struct adapter *adapter = dev->ml_priv;
871
872 if (changed & NETIF_F_HW_VLAN_CTAG_RX)
873 t1_vlan_mode(adapter, features);
874
875 return 0;
876}
877#ifdef CONFIG_NET_POLL_CONTROLLER
878static void t1_netpoll(struct net_device *dev)
879{
880 unsigned long flags;
881 struct adapter *adapter = dev->ml_priv;
882
883 local_irq_save(flags);
884 t1_interrupt(adapter->pdev->irq, adapter);
885 local_irq_restore(flags);
886}
887#endif
888
889
890
891
892
893static void mac_stats_task(struct work_struct *work)
894{
895 int i;
896 struct adapter *adapter =
897 container_of(work, struct adapter, stats_update_task.work);
898
899 for_each_port(adapter, i) {
900 struct port_info *p = &adapter->port[i];
901
902 if (netif_running(p->dev))
903 p->mac->ops->statistics_update(p->mac,
904 MAC_STATS_UPDATE_FAST);
905 }
906
907
908 spin_lock(&adapter->work_lock);
909 if (adapter->open_device_map & PORT_MASK)
910 schedule_mac_stats_update(adapter,
911 adapter->params.stats_update_period);
912 spin_unlock(&adapter->work_lock);
913}
914
915
916
917
918static void ext_intr_task(struct work_struct *work)
919{
920 struct adapter *adapter =
921 container_of(work, struct adapter, ext_intr_handler_task);
922
923 t1_elmer0_ext_intr_handler(adapter);
924
925
926 spin_lock_irq(&adapter->async_lock);
927 adapter->slow_intr_mask |= F_PL_INTR_EXT;
928 writel(F_PL_INTR_EXT, adapter->regs + A_PL_CAUSE);
929 writel(adapter->slow_intr_mask | F_PL_INTR_SGE_DATA,
930 adapter->regs + A_PL_ENABLE);
931 spin_unlock_irq(&adapter->async_lock);
932}
933
934
935
936
937void t1_elmer0_ext_intr(struct adapter *adapter)
938{
939
940
941
942
943
944 adapter->slow_intr_mask &= ~F_PL_INTR_EXT;
945 writel(adapter->slow_intr_mask | F_PL_INTR_SGE_DATA,
946 adapter->regs + A_PL_ENABLE);
947 schedule_work(&adapter->ext_intr_handler_task);
948}
949
950void t1_fatal_err(struct adapter *adapter)
951{
952 if (adapter->flags & FULL_INIT_DONE) {
953 t1_sge_stop(adapter->sge);
954 t1_interrupts_disable(adapter);
955 }
956 pr_alert("%s: encountered fatal error, operation suspended\n",
957 adapter->name);
958}
959
960static const struct net_device_ops cxgb_netdev_ops = {
961 .ndo_open = cxgb_open,
962 .ndo_stop = cxgb_close,
963 .ndo_start_xmit = t1_start_xmit,
964 .ndo_get_stats = t1_get_stats,
965 .ndo_validate_addr = eth_validate_addr,
966 .ndo_set_rx_mode = t1_set_rxmode,
967 .ndo_do_ioctl = t1_ioctl,
968 .ndo_change_mtu = t1_change_mtu,
969 .ndo_set_mac_address = t1_set_mac_addr,
970 .ndo_fix_features = t1_fix_features,
971 .ndo_set_features = t1_set_features,
972#ifdef CONFIG_NET_POLL_CONTROLLER
973 .ndo_poll_controller = t1_netpoll,
974#endif
975};
976
977static int init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
978{
979 int i, err, pci_using_dac = 0;
980 unsigned long mmio_start, mmio_len;
981 const struct board_info *bi;
982 struct adapter *adapter = NULL;
983 struct port_info *pi;
984
985 pr_info_once("%s - version %s\n", DRV_DESCRIPTION, DRV_VERSION);
986
987 err = pci_enable_device(pdev);
988 if (err)
989 return err;
990
991 if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
992 pr_err("%s: cannot find PCI device memory base address\n",
993 pci_name(pdev));
994 err = -ENODEV;
995 goto out_disable_pdev;
996 }
997
998 if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64))) {
999 pci_using_dac = 1;
1000
1001 if (pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64))) {
1002 pr_err("%s: unable to obtain 64-bit DMA for "
1003 "consistent allocations\n", pci_name(pdev));
1004 err = -ENODEV;
1005 goto out_disable_pdev;
1006 }
1007
1008 } else if ((err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32))) != 0) {
1009 pr_err("%s: no usable DMA configuration\n", pci_name(pdev));
1010 goto out_disable_pdev;
1011 }
1012
1013 err = pci_request_regions(pdev, DRV_NAME);
1014 if (err) {
1015 pr_err("%s: cannot obtain PCI resources\n", pci_name(pdev));
1016 goto out_disable_pdev;
1017 }
1018
1019 pci_set_master(pdev);
1020
1021 mmio_start = pci_resource_start(pdev, 0);
1022 mmio_len = pci_resource_len(pdev, 0);
1023 bi = t1_get_board_info(ent->driver_data);
1024
1025 for (i = 0; i < bi->port_number; ++i) {
1026 struct net_device *netdev;
1027
1028 netdev = alloc_etherdev(adapter ? 0 : sizeof(*adapter));
1029 if (!netdev) {
1030 err = -ENOMEM;
1031 goto out_free_dev;
1032 }
1033
1034 SET_NETDEV_DEV(netdev, &pdev->dev);
1035
1036 if (!adapter) {
1037 adapter = netdev_priv(netdev);
1038 adapter->pdev = pdev;
1039 adapter->port[0].dev = netdev;
1040
1041 adapter->regs = ioremap(mmio_start, mmio_len);
1042 if (!adapter->regs) {
1043 pr_err("%s: cannot map device registers\n",
1044 pci_name(pdev));
1045 err = -ENOMEM;
1046 goto out_free_dev;
1047 }
1048
1049 if (t1_get_board_rev(adapter, bi, &adapter->params)) {
1050 err = -ENODEV;
1051 goto out_free_dev;
1052 }
1053
1054 adapter->name = pci_name(pdev);
1055 adapter->msg_enable = dflt_msg_enable;
1056 adapter->mmio_len = mmio_len;
1057
1058 spin_lock_init(&adapter->tpi_lock);
1059 spin_lock_init(&adapter->work_lock);
1060 spin_lock_init(&adapter->async_lock);
1061 spin_lock_init(&adapter->mac_lock);
1062
1063 INIT_WORK(&adapter->ext_intr_handler_task,
1064 ext_intr_task);
1065 INIT_DELAYED_WORK(&adapter->stats_update_task,
1066 mac_stats_task);
1067
1068 pci_set_drvdata(pdev, netdev);
1069 }
1070
1071 pi = &adapter->port[i];
1072 pi->dev = netdev;
1073 netif_carrier_off(netdev);
1074 netdev->irq = pdev->irq;
1075 netdev->if_port = i;
1076 netdev->mem_start = mmio_start;
1077 netdev->mem_end = mmio_start + mmio_len - 1;
1078 netdev->ml_priv = adapter;
1079 netdev->hw_features |= NETIF_F_SG | NETIF_F_IP_CSUM |
1080 NETIF_F_RXCSUM;
1081 netdev->features |= NETIF_F_SG | NETIF_F_IP_CSUM |
1082 NETIF_F_RXCSUM | NETIF_F_LLTX;
1083
1084 if (pci_using_dac)
1085 netdev->features |= NETIF_F_HIGHDMA;
1086 if (vlan_tso_capable(adapter)) {
1087 netdev->features |=
1088 NETIF_F_HW_VLAN_CTAG_TX |
1089 NETIF_F_HW_VLAN_CTAG_RX;
1090 netdev->hw_features |= NETIF_F_HW_VLAN_CTAG_RX;
1091
1092
1093 if (!(is_T2(adapter)) || bi->port_number != 4) {
1094 netdev->hw_features |= NETIF_F_TSO;
1095 netdev->features |= NETIF_F_TSO;
1096 }
1097 }
1098
1099 netdev->netdev_ops = &cxgb_netdev_ops;
1100 netdev->hard_header_len += (netdev->hw_features & NETIF_F_TSO) ?
1101 sizeof(struct cpl_tx_pkt_lso) : sizeof(struct cpl_tx_pkt);
1102
1103 netif_napi_add(netdev, &adapter->napi, t1_poll, 64);
1104
1105 SET_ETHTOOL_OPS(netdev, &t1_ethtool_ops);
1106 }
1107
1108 if (t1_init_sw_modules(adapter, bi) < 0) {
1109 err = -ENODEV;
1110 goto out_free_dev;
1111 }
1112
1113
1114
1115
1116
1117
1118
1119 for (i = 0; i < bi->port_number; ++i) {
1120 err = register_netdev(adapter->port[i].dev);
1121 if (err)
1122 pr_warn("%s: cannot register net device %s, skipping\n",
1123 pci_name(pdev), adapter->port[i].dev->name);
1124 else {
1125
1126
1127
1128
1129 if (!adapter->registered_device_map)
1130 adapter->name = adapter->port[i].dev->name;
1131
1132 __set_bit(i, &adapter->registered_device_map);
1133 }
1134 }
1135 if (!adapter->registered_device_map) {
1136 pr_err("%s: could not register any net devices\n",
1137 pci_name(pdev));
1138 goto out_release_adapter_res;
1139 }
1140
1141 pr_info("%s: %s (rev %d), %s %dMHz/%d-bit\n",
1142 adapter->name, bi->desc, adapter->params.chip_revision,
1143 adapter->params.pci.is_pcix ? "PCIX" : "PCI",
1144 adapter->params.pci.speed, adapter->params.pci.width);
1145
1146
1147
1148
1149 if (t1powersave)
1150 adapter->t1powersave = LCLOCK;
1151 else
1152 adapter->t1powersave = HCLOCK;
1153 if (t1_is_T1B(adapter))
1154 t1_clock(adapter, t1powersave);
1155
1156 return 0;
1157
1158out_release_adapter_res:
1159 t1_free_sw_modules(adapter);
1160out_free_dev:
1161 if (adapter) {
1162 if (adapter->regs)
1163 iounmap(adapter->regs);
1164 for (i = bi->port_number - 1; i >= 0; --i)
1165 if (adapter->port[i].dev)
1166 free_netdev(adapter->port[i].dev);
1167 }
1168 pci_release_regions(pdev);
1169out_disable_pdev:
1170 pci_disable_device(pdev);
1171 return err;
1172}
1173
1174static void bit_bang(struct adapter *adapter, int bitdata, int nbits)
1175{
1176 int data;
1177 int i;
1178 u32 val;
1179
1180 enum {
1181 S_CLOCK = 1 << 3,
1182 S_DATA = 1 << 4
1183 };
1184
1185 for (i = (nbits - 1); i > -1; i--) {
1186
1187 udelay(50);
1188
1189 data = ((bitdata >> i) & 0x1);
1190 __t1_tpi_read(adapter, A_ELMER0_GPO, &val);
1191
1192 if (data)
1193 val |= S_DATA;
1194 else
1195 val &= ~S_DATA;
1196
1197 udelay(50);
1198
1199
1200 val &= ~S_CLOCK;
1201 __t1_tpi_write(adapter, A_ELMER0_GPO, val);
1202
1203 udelay(50);
1204
1205
1206 val |= S_CLOCK;
1207 __t1_tpi_write(adapter, A_ELMER0_GPO, val);
1208
1209 }
1210}
1211
1212static int t1_clock(struct adapter *adapter, int mode)
1213{
1214 u32 val;
1215 int M_CORE_VAL;
1216 int M_MEM_VAL;
1217
1218 enum {
1219 M_CORE_BITS = 9,
1220 T_CORE_VAL = 0,
1221 T_CORE_BITS = 2,
1222 N_CORE_VAL = 0,
1223 N_CORE_BITS = 2,
1224 M_MEM_BITS = 9,
1225 T_MEM_VAL = 0,
1226 T_MEM_BITS = 2,
1227 N_MEM_VAL = 0,
1228 N_MEM_BITS = 2,
1229 NP_LOAD = 1 << 17,
1230 S_LOAD_MEM = 1 << 5,
1231 S_LOAD_CORE = 1 << 6,
1232 S_CLOCK = 1 << 3
1233 };
1234
1235 if (!t1_is_T1B(adapter))
1236 return -ENODEV;
1237
1238 if (mode & 2)
1239 return 0;
1240
1241 if ((adapter->t1powersave & 1) == (mode & 1))
1242 return -EALREADY;
1243
1244 if ((mode & 1) == HCLOCK) {
1245 M_CORE_VAL = 0x14;
1246 M_MEM_VAL = 0x18;
1247 adapter->t1powersave = HCLOCK;
1248 } else {
1249 M_CORE_VAL = 0xe;
1250 M_MEM_VAL = 0x10;
1251 adapter->t1powersave = LCLOCK;
1252 }
1253
1254
1255 spin_lock(&adapter->tpi_lock);
1256
1257
1258 __t1_tpi_read(adapter, A_ELMER0_GPO, &val);
1259 val |= NP_LOAD;
1260 udelay(50);
1261 __t1_tpi_write(adapter, A_ELMER0_GPO, val);
1262 udelay(50);
1263 __t1_tpi_read(adapter, A_ELMER0_GPO, &val);
1264 val &= ~S_LOAD_CORE;
1265 val &= ~S_CLOCK;
1266 __t1_tpi_write(adapter, A_ELMER0_GPO, val);
1267 udelay(50);
1268
1269
1270 bit_bang(adapter, T_CORE_VAL, T_CORE_BITS);
1271 bit_bang(adapter, N_CORE_VAL, N_CORE_BITS);
1272 bit_bang(adapter, M_CORE_VAL, M_CORE_BITS);
1273 udelay(50);
1274
1275
1276 __t1_tpi_read(adapter, A_ELMER0_GPO, &val);
1277 val |= S_LOAD_CORE;
1278 udelay(50);
1279 __t1_tpi_write(adapter, A_ELMER0_GPO, val);
1280 udelay(50);
1281 __t1_tpi_read(adapter, A_ELMER0_GPO, &val);
1282 val &= ~S_LOAD_CORE;
1283 udelay(50);
1284 __t1_tpi_write(adapter, A_ELMER0_GPO, val);
1285 udelay(50);
1286
1287
1288 __t1_tpi_read(adapter, A_ELMER0_GPO, &val);
1289 val |= NP_LOAD;
1290 udelay(50);
1291 __t1_tpi_write(adapter, A_ELMER0_GPO, val);
1292 udelay(50);
1293 __t1_tpi_read(adapter, A_ELMER0_GPO, &val);
1294 val &= ~S_LOAD_MEM;
1295 val &= ~S_CLOCK;
1296 udelay(50);
1297 __t1_tpi_write(adapter, A_ELMER0_GPO, val);
1298 udelay(50);
1299
1300
1301 bit_bang(adapter, T_MEM_VAL, T_MEM_BITS);
1302 bit_bang(adapter, N_MEM_VAL, N_MEM_BITS);
1303 bit_bang(adapter, M_MEM_VAL, M_MEM_BITS);
1304 udelay(50);
1305
1306
1307 __t1_tpi_read(adapter, A_ELMER0_GPO, &val);
1308 val |= S_LOAD_MEM;
1309 udelay(50);
1310 __t1_tpi_write(adapter, A_ELMER0_GPO, val);
1311 udelay(50);
1312 __t1_tpi_read(adapter, A_ELMER0_GPO, &val);
1313 val &= ~S_LOAD_MEM;
1314 udelay(50);
1315 __t1_tpi_write(adapter, A_ELMER0_GPO, val);
1316
1317 spin_unlock(&adapter->tpi_lock);
1318
1319 return 0;
1320}
1321
1322static inline void t1_sw_reset(struct pci_dev *pdev)
1323{
1324 pci_write_config_dword(pdev, A_PCICFG_PM_CSR, 3);
1325 pci_write_config_dword(pdev, A_PCICFG_PM_CSR, 0);
1326}
1327
1328static void remove_one(struct pci_dev *pdev)
1329{
1330 struct net_device *dev = pci_get_drvdata(pdev);
1331 struct adapter *adapter = dev->ml_priv;
1332 int i;
1333
1334 for_each_port(adapter, i) {
1335 if (test_bit(i, &adapter->registered_device_map))
1336 unregister_netdev(adapter->port[i].dev);
1337 }
1338
1339 t1_free_sw_modules(adapter);
1340 iounmap(adapter->regs);
1341
1342 while (--i >= 0) {
1343 if (adapter->port[i].dev)
1344 free_netdev(adapter->port[i].dev);
1345 }
1346
1347 pci_release_regions(pdev);
1348 pci_disable_device(pdev);
1349 t1_sw_reset(pdev);
1350}
1351
1352static struct pci_driver cxgb_pci_driver = {
1353 .name = DRV_NAME,
1354 .id_table = t1_pci_tbl,
1355 .probe = init_one,
1356 .remove = remove_one,
1357};
1358
1359module_pci_driver(cxgb_pci_driver);
1360
