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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
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 strcpy(info->driver, DRV_NAME);
438 strcpy(info->version, DRV_VERSION);
439 strcpy(info->fw_version, "N/A");
440 strcpy(info->bus_info, pci_name(adapter->pdev));
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 u32 t1_fix_features(struct net_device *dev, u32 features)
853{
854
855
856
857
858 if (features & NETIF_F_HW_VLAN_RX)
859 features |= NETIF_F_HW_VLAN_TX;
860 else
861 features &= ~NETIF_F_HW_VLAN_TX;
862
863 return features;
864}
865
866static int t1_set_features(struct net_device *dev, u32 features)
867{
868 u32 changed = dev->features ^ features;
869 struct adapter *adapter = dev->ml_priv;
870
871 if (changed & NETIF_F_HW_VLAN_RX)
872 t1_vlan_mode(adapter, features);
873
874 return 0;
875}
876#ifdef CONFIG_NET_POLL_CONTROLLER
877static void t1_netpoll(struct net_device *dev)
878{
879 unsigned long flags;
880 struct adapter *adapter = dev->ml_priv;
881
882 local_irq_save(flags);
883 t1_interrupt(adapter->pdev->irq, adapter);
884 local_irq_restore(flags);
885}
886#endif
887
888
889
890
891
892static void mac_stats_task(struct work_struct *work)
893{
894 int i;
895 struct adapter *adapter =
896 container_of(work, struct adapter, stats_update_task.work);
897
898 for_each_port(adapter, i) {
899 struct port_info *p = &adapter->port[i];
900
901 if (netif_running(p->dev))
902 p->mac->ops->statistics_update(p->mac,
903 MAC_STATS_UPDATE_FAST);
904 }
905
906
907 spin_lock(&adapter->work_lock);
908 if (adapter->open_device_map & PORT_MASK)
909 schedule_mac_stats_update(adapter,
910 adapter->params.stats_update_period);
911 spin_unlock(&adapter->work_lock);
912}
913
914
915
916
917static void ext_intr_task(struct work_struct *work)
918{
919 struct adapter *adapter =
920 container_of(work, struct adapter, ext_intr_handler_task);
921
922 t1_elmer0_ext_intr_handler(adapter);
923
924
925 spin_lock_irq(&adapter->async_lock);
926 adapter->slow_intr_mask |= F_PL_INTR_EXT;
927 writel(F_PL_INTR_EXT, adapter->regs + A_PL_CAUSE);
928 writel(adapter->slow_intr_mask | F_PL_INTR_SGE_DATA,
929 adapter->regs + A_PL_ENABLE);
930 spin_unlock_irq(&adapter->async_lock);
931}
932
933
934
935
936void t1_elmer0_ext_intr(struct adapter *adapter)
937{
938
939
940
941
942
943 adapter->slow_intr_mask &= ~F_PL_INTR_EXT;
944 writel(adapter->slow_intr_mask | F_PL_INTR_SGE_DATA,
945 adapter->regs + A_PL_ENABLE);
946 schedule_work(&adapter->ext_intr_handler_task);
947}
948
949void t1_fatal_err(struct adapter *adapter)
950{
951 if (adapter->flags & FULL_INIT_DONE) {
952 t1_sge_stop(adapter->sge);
953 t1_interrupts_disable(adapter);
954 }
955 pr_alert("%s: encountered fatal error, operation suspended\n",
956 adapter->name);
957}
958
959static const struct net_device_ops cxgb_netdev_ops = {
960 .ndo_open = cxgb_open,
961 .ndo_stop = cxgb_close,
962 .ndo_start_xmit = t1_start_xmit,
963 .ndo_get_stats = t1_get_stats,
964 .ndo_validate_addr = eth_validate_addr,
965 .ndo_set_rx_mode = t1_set_rxmode,
966 .ndo_do_ioctl = t1_ioctl,
967 .ndo_change_mtu = t1_change_mtu,
968 .ndo_set_mac_address = t1_set_mac_addr,
969 .ndo_fix_features = t1_fix_features,
970 .ndo_set_features = t1_set_features,
971#ifdef CONFIG_NET_POLL_CONTROLLER
972 .ndo_poll_controller = t1_netpoll,
973#endif
974};
975
976static int __devinit init_one(struct pci_dev *pdev,
977 const struct pci_device_id *ent)
978{
979 static int version_printed;
980
981 int i, err, pci_using_dac = 0;
982 unsigned long mmio_start, mmio_len;
983 const struct board_info *bi;
984 struct adapter *adapter = NULL;
985 struct port_info *pi;
986
987 if (!version_printed) {
988 printk(KERN_INFO "%s - version %s\n", DRV_DESCRIPTION,
989 DRV_VERSION);
990 ++version_printed;
991 }
992
993 err = pci_enable_device(pdev);
994 if (err)
995 return err;
996
997 if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
998 pr_err("%s: cannot find PCI device memory base address\n",
999 pci_name(pdev));
1000 err = -ENODEV;
1001 goto out_disable_pdev;
1002 }
1003
1004 if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64))) {
1005 pci_using_dac = 1;
1006
1007 if (pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64))) {
1008 pr_err("%s: unable to obtain 64-bit DMA for "
1009 "consistent allocations\n", pci_name(pdev));
1010 err = -ENODEV;
1011 goto out_disable_pdev;
1012 }
1013
1014 } else if ((err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32))) != 0) {
1015 pr_err("%s: no usable DMA configuration\n", pci_name(pdev));
1016 goto out_disable_pdev;
1017 }
1018
1019 err = pci_request_regions(pdev, DRV_NAME);
1020 if (err) {
1021 pr_err("%s: cannot obtain PCI resources\n", pci_name(pdev));
1022 goto out_disable_pdev;
1023 }
1024
1025 pci_set_master(pdev);
1026
1027 mmio_start = pci_resource_start(pdev, 0);
1028 mmio_len = pci_resource_len(pdev, 0);
1029 bi = t1_get_board_info(ent->driver_data);
1030
1031 for (i = 0; i < bi->port_number; ++i) {
1032 struct net_device *netdev;
1033
1034 netdev = alloc_etherdev(adapter ? 0 : sizeof(*adapter));
1035 if (!netdev) {
1036 err = -ENOMEM;
1037 goto out_free_dev;
1038 }
1039
1040 SET_NETDEV_DEV(netdev, &pdev->dev);
1041
1042 if (!adapter) {
1043 adapter = netdev_priv(netdev);
1044 adapter->pdev = pdev;
1045 adapter->port[0].dev = netdev;
1046
1047 adapter->regs = ioremap(mmio_start, mmio_len);
1048 if (!adapter->regs) {
1049 pr_err("%s: cannot map device registers\n",
1050 pci_name(pdev));
1051 err = -ENOMEM;
1052 goto out_free_dev;
1053 }
1054
1055 if (t1_get_board_rev(adapter, bi, &adapter->params)) {
1056 err = -ENODEV;
1057 goto out_free_dev;
1058 }
1059
1060 adapter->name = pci_name(pdev);
1061 adapter->msg_enable = dflt_msg_enable;
1062 adapter->mmio_len = mmio_len;
1063
1064 spin_lock_init(&adapter->tpi_lock);
1065 spin_lock_init(&adapter->work_lock);
1066 spin_lock_init(&adapter->async_lock);
1067 spin_lock_init(&adapter->mac_lock);
1068
1069 INIT_WORK(&adapter->ext_intr_handler_task,
1070 ext_intr_task);
1071 INIT_DELAYED_WORK(&adapter->stats_update_task,
1072 mac_stats_task);
1073
1074 pci_set_drvdata(pdev, netdev);
1075 }
1076
1077 pi = &adapter->port[i];
1078 pi->dev = netdev;
1079 netif_carrier_off(netdev);
1080 netdev->irq = pdev->irq;
1081 netdev->if_port = i;
1082 netdev->mem_start = mmio_start;
1083 netdev->mem_end = mmio_start + mmio_len - 1;
1084 netdev->ml_priv = adapter;
1085 netdev->hw_features |= NETIF_F_SG | NETIF_F_IP_CSUM |
1086 NETIF_F_RXCSUM;
1087 netdev->features |= NETIF_F_SG | NETIF_F_IP_CSUM |
1088 NETIF_F_RXCSUM | NETIF_F_LLTX;
1089
1090 if (pci_using_dac)
1091 netdev->features |= NETIF_F_HIGHDMA;
1092 if (vlan_tso_capable(adapter)) {
1093 netdev->features |=
1094 NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX;
1095 netdev->hw_features |= NETIF_F_HW_VLAN_RX;
1096
1097
1098 if (!(is_T2(adapter)) || bi->port_number != 4) {
1099 netdev->hw_features |= NETIF_F_TSO;
1100 netdev->features |= NETIF_F_TSO;
1101 }
1102 }
1103
1104 netdev->netdev_ops = &cxgb_netdev_ops;
1105 netdev->hard_header_len += (netdev->hw_features & NETIF_F_TSO) ?
1106 sizeof(struct cpl_tx_pkt_lso) : sizeof(struct cpl_tx_pkt);
1107
1108 netif_napi_add(netdev, &adapter->napi, t1_poll, 64);
1109
1110 SET_ETHTOOL_OPS(netdev, &t1_ethtool_ops);
1111 }
1112
1113 if (t1_init_sw_modules(adapter, bi) < 0) {
1114 err = -ENODEV;
1115 goto out_free_dev;
1116 }
1117
1118
1119
1120
1121
1122
1123
1124 for (i = 0; i < bi->port_number; ++i) {
1125 err = register_netdev(adapter->port[i].dev);
1126 if (err)
1127 pr_warning("%s: cannot register net device %s, skipping\n",
1128 pci_name(pdev), adapter->port[i].dev->name);
1129 else {
1130
1131
1132
1133
1134 if (!adapter->registered_device_map)
1135 adapter->name = adapter->port[i].dev->name;
1136
1137 __set_bit(i, &adapter->registered_device_map);
1138 }
1139 }
1140 if (!adapter->registered_device_map) {
1141 pr_err("%s: could not register any net devices\n",
1142 pci_name(pdev));
1143 goto out_release_adapter_res;
1144 }
1145
1146 printk(KERN_INFO "%s: %s (rev %d), %s %dMHz/%d-bit\n", adapter->name,
1147 bi->desc, adapter->params.chip_revision,
1148 adapter->params.pci.is_pcix ? "PCIX" : "PCI",
1149 adapter->params.pci.speed, adapter->params.pci.width);
1150
1151
1152
1153
1154 if (t1powersave)
1155 adapter->t1powersave = LCLOCK;
1156 else
1157 adapter->t1powersave = HCLOCK;
1158 if (t1_is_T1B(adapter))
1159 t1_clock(adapter, t1powersave);
1160
1161 return 0;
1162
1163out_release_adapter_res:
1164 t1_free_sw_modules(adapter);
1165out_free_dev:
1166 if (adapter) {
1167 if (adapter->regs)
1168 iounmap(adapter->regs);
1169 for (i = bi->port_number - 1; i >= 0; --i)
1170 if (adapter->port[i].dev)
1171 free_netdev(adapter->port[i].dev);
1172 }
1173 pci_release_regions(pdev);
1174out_disable_pdev:
1175 pci_disable_device(pdev);
1176 pci_set_drvdata(pdev, NULL);
1177 return err;
1178}
1179
1180static void bit_bang(struct adapter *adapter, int bitdata, int nbits)
1181{
1182 int data;
1183 int i;
1184 u32 val;
1185
1186 enum {
1187 S_CLOCK = 1 << 3,
1188 S_DATA = 1 << 4
1189 };
1190
1191 for (i = (nbits - 1); i > -1; i--) {
1192
1193 udelay(50);
1194
1195 data = ((bitdata >> i) & 0x1);
1196 __t1_tpi_read(adapter, A_ELMER0_GPO, &val);
1197
1198 if (data)
1199 val |= S_DATA;
1200 else
1201 val &= ~S_DATA;
1202
1203 udelay(50);
1204
1205
1206 val &= ~S_CLOCK;
1207 __t1_tpi_write(adapter, A_ELMER0_GPO, val);
1208
1209 udelay(50);
1210
1211
1212 val |= S_CLOCK;
1213 __t1_tpi_write(adapter, A_ELMER0_GPO, val);
1214
1215 }
1216}
1217
1218static int t1_clock(struct adapter *adapter, int mode)
1219{
1220 u32 val;
1221 int M_CORE_VAL;
1222 int M_MEM_VAL;
1223
1224 enum {
1225 M_CORE_BITS = 9,
1226 T_CORE_VAL = 0,
1227 T_CORE_BITS = 2,
1228 N_CORE_VAL = 0,
1229 N_CORE_BITS = 2,
1230 M_MEM_BITS = 9,
1231 T_MEM_VAL = 0,
1232 T_MEM_BITS = 2,
1233 N_MEM_VAL = 0,
1234 N_MEM_BITS = 2,
1235 NP_LOAD = 1 << 17,
1236 S_LOAD_MEM = 1 << 5,
1237 S_LOAD_CORE = 1 << 6,
1238 S_CLOCK = 1 << 3
1239 };
1240
1241 if (!t1_is_T1B(adapter))
1242 return -ENODEV;
1243
1244 if (mode & 2)
1245 return 0;
1246
1247 if ((adapter->t1powersave & 1) == (mode & 1))
1248 return -EALREADY;
1249
1250 if ((mode & 1) == HCLOCK) {
1251 M_CORE_VAL = 0x14;
1252 M_MEM_VAL = 0x18;
1253 adapter->t1powersave = HCLOCK;
1254 } else {
1255 M_CORE_VAL = 0xe;
1256 M_MEM_VAL = 0x10;
1257 adapter->t1powersave = LCLOCK;
1258 }
1259
1260
1261 spin_lock(&adapter->tpi_lock);
1262
1263
1264 __t1_tpi_read(adapter, A_ELMER0_GPO, &val);
1265 val |= NP_LOAD;
1266 udelay(50);
1267 __t1_tpi_write(adapter, A_ELMER0_GPO, val);
1268 udelay(50);
1269 __t1_tpi_read(adapter, A_ELMER0_GPO, &val);
1270 val &= ~S_LOAD_CORE;
1271 val &= ~S_CLOCK;
1272 __t1_tpi_write(adapter, A_ELMER0_GPO, val);
1273 udelay(50);
1274
1275
1276 bit_bang(adapter, T_CORE_VAL, T_CORE_BITS);
1277 bit_bang(adapter, N_CORE_VAL, N_CORE_BITS);
1278 bit_bang(adapter, M_CORE_VAL, M_CORE_BITS);
1279 udelay(50);
1280
1281
1282 __t1_tpi_read(adapter, A_ELMER0_GPO, &val);
1283 val |= S_LOAD_CORE;
1284 udelay(50);
1285 __t1_tpi_write(adapter, A_ELMER0_GPO, val);
1286 udelay(50);
1287 __t1_tpi_read(adapter, A_ELMER0_GPO, &val);
1288 val &= ~S_LOAD_CORE;
1289 udelay(50);
1290 __t1_tpi_write(adapter, A_ELMER0_GPO, val);
1291 udelay(50);
1292
1293
1294 __t1_tpi_read(adapter, A_ELMER0_GPO, &val);
1295 val |= NP_LOAD;
1296 udelay(50);
1297 __t1_tpi_write(adapter, A_ELMER0_GPO, val);
1298 udelay(50);
1299 __t1_tpi_read(adapter, A_ELMER0_GPO, &val);
1300 val &= ~S_LOAD_MEM;
1301 val &= ~S_CLOCK;
1302 udelay(50);
1303 __t1_tpi_write(adapter, A_ELMER0_GPO, val);
1304 udelay(50);
1305
1306
1307 bit_bang(adapter, T_MEM_VAL, T_MEM_BITS);
1308 bit_bang(adapter, N_MEM_VAL, N_MEM_BITS);
1309 bit_bang(adapter, M_MEM_VAL, M_MEM_BITS);
1310 udelay(50);
1311
1312
1313 __t1_tpi_read(adapter, A_ELMER0_GPO, &val);
1314 val |= S_LOAD_MEM;
1315 udelay(50);
1316 __t1_tpi_write(adapter, A_ELMER0_GPO, val);
1317 udelay(50);
1318 __t1_tpi_read(adapter, A_ELMER0_GPO, &val);
1319 val &= ~S_LOAD_MEM;
1320 udelay(50);
1321 __t1_tpi_write(adapter, A_ELMER0_GPO, val);
1322
1323 spin_unlock(&adapter->tpi_lock);
1324
1325 return 0;
1326}
1327
1328static inline void t1_sw_reset(struct pci_dev *pdev)
1329{
1330 pci_write_config_dword(pdev, A_PCICFG_PM_CSR, 3);
1331 pci_write_config_dword(pdev, A_PCICFG_PM_CSR, 0);
1332}
1333
1334static void __devexit remove_one(struct pci_dev *pdev)
1335{
1336 struct net_device *dev = pci_get_drvdata(pdev);
1337 struct adapter *adapter = dev->ml_priv;
1338 int i;
1339
1340 for_each_port(adapter, i) {
1341 if (test_bit(i, &adapter->registered_device_map))
1342 unregister_netdev(adapter->port[i].dev);
1343 }
1344
1345 t1_free_sw_modules(adapter);
1346 iounmap(adapter->regs);
1347
1348 while (--i >= 0) {
1349 if (adapter->port[i].dev)
1350 free_netdev(adapter->port[i].dev);
1351 }
1352
1353 pci_release_regions(pdev);
1354 pci_disable_device(pdev);
1355 pci_set_drvdata(pdev, NULL);
1356 t1_sw_reset(pdev);
1357}
1358
1359static struct pci_driver driver = {
1360 .name = DRV_NAME,
1361 .id_table = t1_pci_tbl,
1362 .probe = init_one,
1363 .remove = __devexit_p(remove_one),
1364};
1365
1366static int __init t1_init_module(void)
1367{
1368 return pci_register_driver(&driver);
1369}
1370
1371static void __exit t1_cleanup_module(void)
1372{
1373 pci_unregister_driver(&driver);
1374}
1375
1376module_init(t1_init_module);
1377module_exit(t1_cleanup_module);
1378
