1 /*****************************************************************************
5 * $Date: 2005/06/22 00:43:25 $ *
7 * Chelsio 10Gb Ethernet Driver. *
9 * This program is free software; you can redistribute it and/or modify *
10 * it under the terms of the GNU General Public License, version 2, as *
11 * published by the Free Software Foundation. *
13 * You should have received a copy of the GNU General Public License along *
14 * with this program; if not, see <http://www.gnu.org/licenses/>. *
16 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED *
17 * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF *
18 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. *
20 * http://www.chelsio.com *
22 * Copyright (c) 2003 - 2005 Chelsio Communications, Inc. *
23 * All rights reserved. *
25 * Maintainers: maintainers@chelsio.com *
27 * Authors: Dimitrios Michailidis <dm@chelsio.com> *
28 * Tina Yang <tainay@chelsio.com> *
29 * Felix Marti <felix@chelsio.com> *
30 * Scott Bardone <sbardone@chelsio.com> *
31 * Kurt Ottaway <kottaway@chelsio.com> *
32 * Frank DiMambro <frank@chelsio.com> *
36 ****************************************************************************/
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 <asm/uaccess.h>
58 #include <linux/workqueue.h>
60 static inline void schedule_mac_stats_update(struct adapter *ap, int secs)
62 schedule_delayed_work(&ap->stats_update_task, secs * HZ);
65 static inline void cancel_mac_stats_update(struct adapter *ap)
67 cancel_delayed_work(&ap->stats_update_task);
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
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)
84 * The EEPROM is actually bigger but only the first few bytes are used so we
87 #define EEPROM_SIZE 32
89 MODULE_DESCRIPTION(DRV_DESCRIPTION);
90 MODULE_AUTHOR("Chelsio Communications");
91 MODULE_LICENSE("GPL");
93 static int dflt_msg_enable = DFLT_MSG_ENABLE;
95 module_param(dflt_msg_enable, int, 0);
96 MODULE_PARM_DESC(dflt_msg_enable, "Chelsio T1 default message enable bitmap");
101 /* T1 cards powersave mode */
102 static int t1_clock(struct adapter *adapter, int mode);
103 static int t1powersave = 1; /* HW default is powersave mode. */
105 module_param(t1powersave, int, 0);
106 MODULE_PARM_DESC(t1powersave, "Enable/Disable T1 powersaving mode");
108 static int disable_msi = 0;
109 module_param(disable_msi, int, 0);
110 MODULE_PARM_DESC(disable_msi, "Disable Message Signaled Interrupt (MSI)");
112 static const char pci_speed[][4] = {
113 "33", "66", "100", "133"
117 * Setup MAC to receive the types of packets we want.
119 static void t1_set_rxmode(struct net_device *dev)
121 struct adapter *adapter = dev->ml_priv;
122 struct cmac *mac = adapter->port[dev->if_port].mac;
123 struct t1_rx_mode rm;
126 mac->ops->set_rx_mode(mac, &rm);
129 static void link_report(struct port_info *p)
131 if (!netif_carrier_ok(p->dev))
132 netdev_info(p->dev, "link down\n");
134 const char *s = "10Mbps";
136 switch (p->link_config.speed) {
137 case SPEED_10000: s = "10Gbps"; break;
138 case SPEED_1000: s = "1000Mbps"; break;
139 case SPEED_100: s = "100Mbps"; break;
142 netdev_info(p->dev, "link up, %s, %s-duplex\n",
143 s, p->link_config.duplex == DUPLEX_FULL
148 void t1_link_negotiated(struct adapter *adapter, int port_id, int link_stat,
149 int speed, int duplex, int pause)
151 struct port_info *p = &adapter->port[port_id];
153 if (link_stat != netif_carrier_ok(p->dev)) {
155 netif_carrier_on(p->dev);
157 netif_carrier_off(p->dev);
160 /* multi-ports: inform toe */
161 if ((speed > 0) && (adapter->params.nports > 1)) {
162 unsigned int sched_speed = 10;
174 t1_sched_update_parms(adapter->sge, port_id, 0, sched_speed);
179 static void link_start(struct port_info *p)
181 struct cmac *mac = p->mac;
183 mac->ops->reset(mac);
184 if (mac->ops->macaddress_set)
185 mac->ops->macaddress_set(mac, p->dev->dev_addr);
186 t1_set_rxmode(p->dev);
187 t1_link_start(p->phy, mac, &p->link_config);
188 mac->ops->enable(mac, MAC_DIRECTION_RX | MAC_DIRECTION_TX);
191 static void enable_hw_csum(struct adapter *adapter)
193 if (adapter->port[0].dev->hw_features & NETIF_F_TSO)
194 t1_tp_set_ip_checksum_offload(adapter->tp, 1); /* for TSO only */
195 t1_tp_set_tcp_checksum_offload(adapter->tp, 1);
199 * Things to do upon first use of a card.
200 * This must run with the rtnl lock held.
202 static int cxgb_up(struct adapter *adapter)
206 if (!(adapter->flags & FULL_INIT_DONE)) {
207 err = t1_init_hw_modules(adapter);
211 enable_hw_csum(adapter);
212 adapter->flags |= FULL_INIT_DONE;
215 t1_interrupts_clear(adapter);
217 adapter->params.has_msi = !disable_msi && !pci_enable_msi(adapter->pdev);
218 err = request_irq(adapter->pdev->irq, t1_interrupt,
219 adapter->params.has_msi ? 0 : IRQF_SHARED,
220 adapter->name, adapter);
222 if (adapter->params.has_msi)
223 pci_disable_msi(adapter->pdev);
228 t1_sge_start(adapter->sge);
229 t1_interrupts_enable(adapter);
235 * Release resources when all the ports have been stopped.
237 static void cxgb_down(struct adapter *adapter)
239 t1_sge_stop(adapter->sge);
240 t1_interrupts_disable(adapter);
241 free_irq(adapter->pdev->irq, adapter);
242 if (adapter->params.has_msi)
243 pci_disable_msi(adapter->pdev);
246 static int cxgb_open(struct net_device *dev)
249 struct adapter *adapter = dev->ml_priv;
250 int other_ports = adapter->open_device_map & PORT_MASK;
252 napi_enable(&adapter->napi);
253 if (!adapter->open_device_map && (err = cxgb_up(adapter)) < 0) {
254 napi_disable(&adapter->napi);
258 __set_bit(dev->if_port, &adapter->open_device_map);
259 link_start(&adapter->port[dev->if_port]);
260 netif_start_queue(dev);
261 if (!other_ports && adapter->params.stats_update_period)
262 schedule_mac_stats_update(adapter,
263 adapter->params.stats_update_period);
265 t1_vlan_mode(adapter, dev->features);
269 static int cxgb_close(struct net_device *dev)
271 struct adapter *adapter = dev->ml_priv;
272 struct port_info *p = &adapter->port[dev->if_port];
273 struct cmac *mac = p->mac;
275 netif_stop_queue(dev);
276 napi_disable(&adapter->napi);
277 mac->ops->disable(mac, MAC_DIRECTION_TX | MAC_DIRECTION_RX);
278 netif_carrier_off(dev);
280 clear_bit(dev->if_port, &adapter->open_device_map);
281 if (adapter->params.stats_update_period &&
282 !(adapter->open_device_map & PORT_MASK)) {
283 /* Stop statistics accumulation. */
284 smp_mb__after_atomic();
285 spin_lock(&adapter->work_lock); /* sync with update task */
286 spin_unlock(&adapter->work_lock);
287 cancel_mac_stats_update(adapter);
290 if (!adapter->open_device_map)
295 static struct net_device_stats *t1_get_stats(struct net_device *dev)
297 struct adapter *adapter = dev->ml_priv;
298 struct port_info *p = &adapter->port[dev->if_port];
299 struct net_device_stats *ns = &p->netstats;
300 const struct cmac_statistics *pstats;
302 /* Do a full update of the MAC stats */
303 pstats = p->mac->ops->statistics_update(p->mac,
304 MAC_STATS_UPDATE_FULL);
306 ns->tx_packets = pstats->TxUnicastFramesOK +
307 pstats->TxMulticastFramesOK + pstats->TxBroadcastFramesOK;
309 ns->rx_packets = pstats->RxUnicastFramesOK +
310 pstats->RxMulticastFramesOK + pstats->RxBroadcastFramesOK;
312 ns->tx_bytes = pstats->TxOctetsOK;
313 ns->rx_bytes = pstats->RxOctetsOK;
315 ns->tx_errors = pstats->TxLateCollisions + pstats->TxLengthErrors +
316 pstats->TxUnderrun + pstats->TxFramesAbortedDueToXSCollisions;
317 ns->rx_errors = pstats->RxDataErrors + pstats->RxJabberErrors +
318 pstats->RxFCSErrors + pstats->RxAlignErrors +
319 pstats->RxSequenceErrors + pstats->RxFrameTooLongErrors +
320 pstats->RxSymbolErrors + pstats->RxRuntErrors;
322 ns->multicast = pstats->RxMulticastFramesOK;
323 ns->collisions = pstats->TxTotalCollisions;
325 /* detailed rx_errors */
326 ns->rx_length_errors = pstats->RxFrameTooLongErrors +
327 pstats->RxJabberErrors;
328 ns->rx_over_errors = 0;
329 ns->rx_crc_errors = pstats->RxFCSErrors;
330 ns->rx_frame_errors = pstats->RxAlignErrors;
331 ns->rx_fifo_errors = 0;
332 ns->rx_missed_errors = 0;
334 /* detailed tx_errors */
335 ns->tx_aborted_errors = pstats->TxFramesAbortedDueToXSCollisions;
336 ns->tx_carrier_errors = 0;
337 ns->tx_fifo_errors = pstats->TxUnderrun;
338 ns->tx_heartbeat_errors = 0;
339 ns->tx_window_errors = pstats->TxLateCollisions;
343 static u32 get_msglevel(struct net_device *dev)
345 struct adapter *adapter = dev->ml_priv;
347 return adapter->msg_enable;
350 static void set_msglevel(struct net_device *dev, u32 val)
352 struct adapter *adapter = dev->ml_priv;
354 adapter->msg_enable = val;
357 static const char stats_strings[][ETH_GSTRING_LEN] = {
361 "TxMulticastFramesOK",
362 "TxBroadcastFramesOK",
364 "TxFramesWithDeferredXmissions",
367 "TxFramesAbortedDueToXSCollisions",
370 "TxInternalMACXmitError",
371 "TxFramesWithExcessiveDeferral",
379 "RxMulticastFramesOK",
380 "RxBroadcastFramesOK",
389 "RxInternalMACRcvError",
390 "RxInRangeLengthErrors",
391 "RxOutOfRangeLengthField",
392 "RxFrameTooLongErrors",
404 /* Interrupt stats */
416 "espi_DIP2ParityErr",
424 #define T2_REGMAP_SIZE (3 * 1024)
426 static int get_regs_len(struct net_device *dev)
428 return T2_REGMAP_SIZE;
431 static void get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
433 struct adapter *adapter = dev->ml_priv;
435 strlcpy(info->driver, DRV_NAME, sizeof(info->driver));
436 strlcpy(info->version, DRV_VERSION, sizeof(info->version));
437 strlcpy(info->bus_info, pci_name(adapter->pdev),
438 sizeof(info->bus_info));
441 static int get_sset_count(struct net_device *dev, int sset)
445 return ARRAY_SIZE(stats_strings);
451 static void get_strings(struct net_device *dev, u32 stringset, u8 *data)
453 if (stringset == ETH_SS_STATS)
454 memcpy(data, stats_strings, sizeof(stats_strings));
457 static void get_stats(struct net_device *dev, struct ethtool_stats *stats,
460 struct adapter *adapter = dev->ml_priv;
461 struct cmac *mac = adapter->port[dev->if_port].mac;
462 const struct cmac_statistics *s;
463 const struct sge_intr_counts *t;
464 struct sge_port_stats ss;
466 s = mac->ops->statistics_update(mac, MAC_STATS_UPDATE_FULL);
467 t = t1_sge_get_intr_counts(adapter->sge);
468 t1_sge_get_port_stats(adapter->sge, dev->if_port, &ss);
470 *data++ = s->TxOctetsOK;
471 *data++ = s->TxOctetsBad;
472 *data++ = s->TxUnicastFramesOK;
473 *data++ = s->TxMulticastFramesOK;
474 *data++ = s->TxBroadcastFramesOK;
475 *data++ = s->TxPauseFrames;
476 *data++ = s->TxFramesWithDeferredXmissions;
477 *data++ = s->TxLateCollisions;
478 *data++ = s->TxTotalCollisions;
479 *data++ = s->TxFramesAbortedDueToXSCollisions;
480 *data++ = s->TxUnderrun;
481 *data++ = s->TxLengthErrors;
482 *data++ = s->TxInternalMACXmitError;
483 *data++ = s->TxFramesWithExcessiveDeferral;
484 *data++ = s->TxFCSErrors;
485 *data++ = s->TxJumboFramesOK;
486 *data++ = s->TxJumboOctetsOK;
488 *data++ = s->RxOctetsOK;
489 *data++ = s->RxOctetsBad;
490 *data++ = s->RxUnicastFramesOK;
491 *data++ = s->RxMulticastFramesOK;
492 *data++ = s->RxBroadcastFramesOK;
493 *data++ = s->RxPauseFrames;
494 *data++ = s->RxFCSErrors;
495 *data++ = s->RxAlignErrors;
496 *data++ = s->RxSymbolErrors;
497 *data++ = s->RxDataErrors;
498 *data++ = s->RxSequenceErrors;
499 *data++ = s->RxRuntErrors;
500 *data++ = s->RxJabberErrors;
501 *data++ = s->RxInternalMACRcvError;
502 *data++ = s->RxInRangeLengthErrors;
503 *data++ = s->RxOutOfRangeLengthField;
504 *data++ = s->RxFrameTooLongErrors;
505 *data++ = s->RxJumboFramesOK;
506 *data++ = s->RxJumboOctetsOK;
508 *data++ = ss.rx_cso_good;
511 *data++ = ss.vlan_xtract;
512 *data++ = ss.vlan_insert;
513 *data++ = ss.tx_need_hdrroom;
515 *data++ = t->rx_drops;
516 *data++ = t->pure_rsps;
517 *data++ = t->unhandled_irqs;
518 *data++ = t->respQ_empty;
519 *data++ = t->respQ_overflow;
520 *data++ = t->freelistQ_empty;
521 *data++ = t->pkt_too_big;
522 *data++ = t->pkt_mismatch;
523 *data++ = t->cmdQ_full[0];
524 *data++ = t->cmdQ_full[1];
527 const struct espi_intr_counts *e;
529 e = t1_espi_get_intr_counts(adapter->espi);
530 *data++ = e->DIP2_parity_err;
531 *data++ = e->DIP4_err;
532 *data++ = e->rx_drops;
533 *data++ = e->tx_drops;
534 *data++ = e->rx_ovflw;
535 *data++ = e->parity_err;
539 static inline void reg_block_dump(struct adapter *ap, void *buf,
540 unsigned int start, unsigned int end)
542 u32 *p = buf + start;
544 for ( ; start <= end; start += sizeof(u32))
545 *p++ = readl(ap->regs + start);
548 static void get_regs(struct net_device *dev, struct ethtool_regs *regs,
551 struct adapter *ap = dev->ml_priv;
554 * Version scheme: bits 0..9: chip version, bits 10..15: chip revision
558 memset(buf, 0, T2_REGMAP_SIZE);
559 reg_block_dump(ap, buf, 0, A_SG_RESPACCUTIMER);
560 reg_block_dump(ap, buf, A_MC3_CFG, A_MC4_INT_CAUSE);
561 reg_block_dump(ap, buf, A_TPI_ADDR, A_TPI_PAR);
562 reg_block_dump(ap, buf, A_TP_IN_CONFIG, A_TP_TX_DROP_COUNT);
563 reg_block_dump(ap, buf, A_RAT_ROUTE_CONTROL, A_RAT_INTR_CAUSE);
564 reg_block_dump(ap, buf, A_CSPI_RX_AE_WM, A_CSPI_INTR_ENABLE);
565 reg_block_dump(ap, buf, A_ESPI_SCH_TOKEN0, A_ESPI_GOSTAT);
566 reg_block_dump(ap, buf, A_ULP_ULIMIT, A_ULP_PIO_CTRL);
567 reg_block_dump(ap, buf, A_PL_ENABLE, A_PL_CAUSE);
568 reg_block_dump(ap, buf, A_MC5_CONFIG, A_MC5_MASK_WRITE_CMD);
571 static int get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
573 struct adapter *adapter = dev->ml_priv;
574 struct port_info *p = &adapter->port[dev->if_port];
576 cmd->supported = p->link_config.supported;
577 cmd->advertising = p->link_config.advertising;
579 if (netif_carrier_ok(dev)) {
580 ethtool_cmd_speed_set(cmd, p->link_config.speed);
581 cmd->duplex = p->link_config.duplex;
583 ethtool_cmd_speed_set(cmd, SPEED_UNKNOWN);
584 cmd->duplex = DUPLEX_UNKNOWN;
587 cmd->port = (cmd->supported & SUPPORTED_TP) ? PORT_TP : PORT_FIBRE;
588 cmd->phy_address = p->phy->mdio.prtad;
589 cmd->transceiver = XCVR_EXTERNAL;
590 cmd->autoneg = p->link_config.autoneg;
596 static int speed_duplex_to_caps(int speed, int duplex)
602 if (duplex == DUPLEX_FULL)
603 cap = SUPPORTED_10baseT_Full;
605 cap = SUPPORTED_10baseT_Half;
608 if (duplex == DUPLEX_FULL)
609 cap = SUPPORTED_100baseT_Full;
611 cap = SUPPORTED_100baseT_Half;
614 if (duplex == DUPLEX_FULL)
615 cap = SUPPORTED_1000baseT_Full;
617 cap = SUPPORTED_1000baseT_Half;
620 if (duplex == DUPLEX_FULL)
621 cap = SUPPORTED_10000baseT_Full;
626 #define ADVERTISED_MASK (ADVERTISED_10baseT_Half | ADVERTISED_10baseT_Full | \
627 ADVERTISED_100baseT_Half | ADVERTISED_100baseT_Full | \
628 ADVERTISED_1000baseT_Half | ADVERTISED_1000baseT_Full | \
629 ADVERTISED_10000baseT_Full)
631 static int set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
633 struct adapter *adapter = dev->ml_priv;
634 struct port_info *p = &adapter->port[dev->if_port];
635 struct link_config *lc = &p->link_config;
637 if (!(lc->supported & SUPPORTED_Autoneg))
638 return -EOPNOTSUPP; /* can't change speed/duplex */
640 if (cmd->autoneg == AUTONEG_DISABLE) {
641 u32 speed = ethtool_cmd_speed(cmd);
642 int cap = speed_duplex_to_caps(speed, cmd->duplex);
644 if (!(lc->supported & cap) || (speed == SPEED_1000))
646 lc->requested_speed = speed;
647 lc->requested_duplex = cmd->duplex;
650 cmd->advertising &= ADVERTISED_MASK;
651 if (cmd->advertising & (cmd->advertising - 1))
652 cmd->advertising = lc->supported;
653 cmd->advertising &= lc->supported;
654 if (!cmd->advertising)
656 lc->requested_speed = SPEED_INVALID;
657 lc->requested_duplex = DUPLEX_INVALID;
658 lc->advertising = cmd->advertising | ADVERTISED_Autoneg;
660 lc->autoneg = cmd->autoneg;
661 if (netif_running(dev))
662 t1_link_start(p->phy, p->mac, lc);
666 static void get_pauseparam(struct net_device *dev,
667 struct ethtool_pauseparam *epause)
669 struct adapter *adapter = dev->ml_priv;
670 struct port_info *p = &adapter->port[dev->if_port];
672 epause->autoneg = (p->link_config.requested_fc & PAUSE_AUTONEG) != 0;
673 epause->rx_pause = (p->link_config.fc & PAUSE_RX) != 0;
674 epause->tx_pause = (p->link_config.fc & PAUSE_TX) != 0;
677 static int set_pauseparam(struct net_device *dev,
678 struct ethtool_pauseparam *epause)
680 struct adapter *adapter = dev->ml_priv;
681 struct port_info *p = &adapter->port[dev->if_port];
682 struct link_config *lc = &p->link_config;
684 if (epause->autoneg == AUTONEG_DISABLE)
685 lc->requested_fc = 0;
686 else if (lc->supported & SUPPORTED_Autoneg)
687 lc->requested_fc = PAUSE_AUTONEG;
691 if (epause->rx_pause)
692 lc->requested_fc |= PAUSE_RX;
693 if (epause->tx_pause)
694 lc->requested_fc |= PAUSE_TX;
695 if (lc->autoneg == AUTONEG_ENABLE) {
696 if (netif_running(dev))
697 t1_link_start(p->phy, p->mac, lc);
699 lc->fc = lc->requested_fc & (PAUSE_RX | PAUSE_TX);
700 if (netif_running(dev))
701 p->mac->ops->set_speed_duplex_fc(p->mac, -1, -1,
707 static void get_sge_param(struct net_device *dev, struct ethtool_ringparam *e)
709 struct adapter *adapter = dev->ml_priv;
710 int jumbo_fl = t1_is_T1B(adapter) ? 1 : 0;
712 e->rx_max_pending = MAX_RX_BUFFERS;
713 e->rx_jumbo_max_pending = MAX_RX_JUMBO_BUFFERS;
714 e->tx_max_pending = MAX_CMDQ_ENTRIES;
716 e->rx_pending = adapter->params.sge.freelQ_size[!jumbo_fl];
717 e->rx_jumbo_pending = adapter->params.sge.freelQ_size[jumbo_fl];
718 e->tx_pending = adapter->params.sge.cmdQ_size[0];
721 static int set_sge_param(struct net_device *dev, struct ethtool_ringparam *e)
723 struct adapter *adapter = dev->ml_priv;
724 int jumbo_fl = t1_is_T1B(adapter) ? 1 : 0;
726 if (e->rx_pending > MAX_RX_BUFFERS || e->rx_mini_pending ||
727 e->rx_jumbo_pending > MAX_RX_JUMBO_BUFFERS ||
728 e->tx_pending > MAX_CMDQ_ENTRIES ||
729 e->rx_pending < MIN_FL_ENTRIES ||
730 e->rx_jumbo_pending < MIN_FL_ENTRIES ||
731 e->tx_pending < (adapter->params.nports + 1) * (MAX_SKB_FRAGS + 1))
734 if (adapter->flags & FULL_INIT_DONE)
737 adapter->params.sge.freelQ_size[!jumbo_fl] = e->rx_pending;
738 adapter->params.sge.freelQ_size[jumbo_fl] = e->rx_jumbo_pending;
739 adapter->params.sge.cmdQ_size[0] = e->tx_pending;
740 adapter->params.sge.cmdQ_size[1] = e->tx_pending > MAX_CMDQ1_ENTRIES ?
741 MAX_CMDQ1_ENTRIES : e->tx_pending;
745 static int set_coalesce(struct net_device *dev, struct ethtool_coalesce *c)
747 struct adapter *adapter = dev->ml_priv;
749 adapter->params.sge.rx_coalesce_usecs = c->rx_coalesce_usecs;
750 adapter->params.sge.coalesce_enable = c->use_adaptive_rx_coalesce;
751 adapter->params.sge.sample_interval_usecs = c->rate_sample_interval;
752 t1_sge_set_coalesce_params(adapter->sge, &adapter->params.sge);
756 static int get_coalesce(struct net_device *dev, struct ethtool_coalesce *c)
758 struct adapter *adapter = dev->ml_priv;
760 c->rx_coalesce_usecs = adapter->params.sge.rx_coalesce_usecs;
761 c->rate_sample_interval = adapter->params.sge.sample_interval_usecs;
762 c->use_adaptive_rx_coalesce = adapter->params.sge.coalesce_enable;
766 static int get_eeprom_len(struct net_device *dev)
768 struct adapter *adapter = dev->ml_priv;
770 return t1_is_asic(adapter) ? EEPROM_SIZE : 0;
773 #define EEPROM_MAGIC(ap) \
774 (PCI_VENDOR_ID_CHELSIO | ((ap)->params.chip_version << 16))
776 static int get_eeprom(struct net_device *dev, struct ethtool_eeprom *e,
780 u8 buf[EEPROM_SIZE] __attribute__((aligned(4)));
781 struct adapter *adapter = dev->ml_priv;
783 e->magic = EEPROM_MAGIC(adapter);
784 for (i = e->offset & ~3; i < e->offset + e->len; i += sizeof(u32))
785 t1_seeprom_read(adapter, i, (__le32 *)&buf[i]);
786 memcpy(data, buf + e->offset, e->len);
790 static const struct ethtool_ops t1_ethtool_ops = {
791 .get_settings = get_settings,
792 .set_settings = set_settings,
793 .get_drvinfo = get_drvinfo,
794 .get_msglevel = get_msglevel,
795 .set_msglevel = set_msglevel,
796 .get_ringparam = get_sge_param,
797 .set_ringparam = set_sge_param,
798 .get_coalesce = get_coalesce,
799 .set_coalesce = set_coalesce,
800 .get_eeprom_len = get_eeprom_len,
801 .get_eeprom = get_eeprom,
802 .get_pauseparam = get_pauseparam,
803 .set_pauseparam = set_pauseparam,
804 .get_link = ethtool_op_get_link,
805 .get_strings = get_strings,
806 .get_sset_count = get_sset_count,
807 .get_ethtool_stats = get_stats,
808 .get_regs_len = get_regs_len,
809 .get_regs = get_regs,
812 static int t1_ioctl(struct net_device *dev, struct ifreq *req, int cmd)
814 struct adapter *adapter = dev->ml_priv;
815 struct mdio_if_info *mdio = &adapter->port[dev->if_port].phy->mdio;
817 return mdio_mii_ioctl(mdio, if_mii(req), cmd);
820 static int t1_change_mtu(struct net_device *dev, int new_mtu)
823 struct adapter *adapter = dev->ml_priv;
824 struct cmac *mac = adapter->port[dev->if_port].mac;
826 if (!mac->ops->set_mtu)
828 if ((ret = mac->ops->set_mtu(mac, new_mtu)))
834 static int t1_set_mac_addr(struct net_device *dev, void *p)
836 struct adapter *adapter = dev->ml_priv;
837 struct cmac *mac = adapter->port[dev->if_port].mac;
838 struct sockaddr *addr = p;
840 if (!mac->ops->macaddress_set)
843 memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
844 mac->ops->macaddress_set(mac, dev->dev_addr);
848 static netdev_features_t t1_fix_features(struct net_device *dev,
849 netdev_features_t features)
852 * Since there is no support for separate rx/tx vlan accel
853 * enable/disable make sure tx flag is always in same state as rx.
855 if (features & NETIF_F_HW_VLAN_CTAG_RX)
856 features |= NETIF_F_HW_VLAN_CTAG_TX;
858 features &= ~NETIF_F_HW_VLAN_CTAG_TX;
863 static int t1_set_features(struct net_device *dev, netdev_features_t features)
865 netdev_features_t changed = dev->features ^ features;
866 struct adapter *adapter = dev->ml_priv;
868 if (changed & NETIF_F_HW_VLAN_CTAG_RX)
869 t1_vlan_mode(adapter, features);
873 #ifdef CONFIG_NET_POLL_CONTROLLER
874 static void t1_netpoll(struct net_device *dev)
877 struct adapter *adapter = dev->ml_priv;
879 local_irq_save(flags);
880 t1_interrupt(adapter->pdev->irq, adapter);
881 local_irq_restore(flags);
886 * Periodic accumulation of MAC statistics. This is used only if the MAC
887 * does not have any other way to prevent stats counter overflow.
889 static void mac_stats_task(struct work_struct *work)
892 struct adapter *adapter =
893 container_of(work, struct adapter, stats_update_task.work);
895 for_each_port(adapter, i) {
896 struct port_info *p = &adapter->port[i];
898 if (netif_running(p->dev))
899 p->mac->ops->statistics_update(p->mac,
900 MAC_STATS_UPDATE_FAST);
903 /* Schedule the next statistics update if any port is active. */
904 spin_lock(&adapter->work_lock);
905 if (adapter->open_device_map & PORT_MASK)
906 schedule_mac_stats_update(adapter,
907 adapter->params.stats_update_period);
908 spin_unlock(&adapter->work_lock);
912 * Processes elmer0 external interrupts in process context.
914 static void ext_intr_task(struct work_struct *work)
916 struct adapter *adapter =
917 container_of(work, struct adapter, ext_intr_handler_task);
919 t1_elmer0_ext_intr_handler(adapter);
921 /* Now reenable external interrupts */
922 spin_lock_irq(&adapter->async_lock);
923 adapter->slow_intr_mask |= F_PL_INTR_EXT;
924 writel(F_PL_INTR_EXT, adapter->regs + A_PL_CAUSE);
925 writel(adapter->slow_intr_mask | F_PL_INTR_SGE_DATA,
926 adapter->regs + A_PL_ENABLE);
927 spin_unlock_irq(&adapter->async_lock);
931 * Interrupt-context handler for elmer0 external interrupts.
933 void t1_elmer0_ext_intr(struct adapter *adapter)
936 * Schedule a task to handle external interrupts as we require
937 * a process context. We disable EXT interrupts in the interim
938 * and let the task reenable them when it's done.
940 adapter->slow_intr_mask &= ~F_PL_INTR_EXT;
941 writel(adapter->slow_intr_mask | F_PL_INTR_SGE_DATA,
942 adapter->regs + A_PL_ENABLE);
943 schedule_work(&adapter->ext_intr_handler_task);
946 void t1_fatal_err(struct adapter *adapter)
948 if (adapter->flags & FULL_INIT_DONE) {
949 t1_sge_stop(adapter->sge);
950 t1_interrupts_disable(adapter);
952 pr_alert("%s: encountered fatal error, operation suspended\n",
956 static const struct net_device_ops cxgb_netdev_ops = {
957 .ndo_open = cxgb_open,
958 .ndo_stop = cxgb_close,
959 .ndo_start_xmit = t1_start_xmit,
960 .ndo_get_stats = t1_get_stats,
961 .ndo_validate_addr = eth_validate_addr,
962 .ndo_set_rx_mode = t1_set_rxmode,
963 .ndo_do_ioctl = t1_ioctl,
964 .ndo_change_mtu = t1_change_mtu,
965 .ndo_set_mac_address = t1_set_mac_addr,
966 .ndo_fix_features = t1_fix_features,
967 .ndo_set_features = t1_set_features,
968 #ifdef CONFIG_NET_POLL_CONTROLLER
969 .ndo_poll_controller = t1_netpoll,
973 static int init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
975 int i, err, pci_using_dac = 0;
976 unsigned long mmio_start, mmio_len;
977 const struct board_info *bi;
978 struct adapter *adapter = NULL;
979 struct port_info *pi;
981 pr_info_once("%s - version %s\n", DRV_DESCRIPTION, DRV_VERSION);
983 err = pci_enable_device(pdev);
987 if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
988 pr_err("%s: cannot find PCI device memory base address\n",
991 goto out_disable_pdev;
994 if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64))) {
997 if (pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64))) {
998 pr_err("%s: unable to obtain 64-bit DMA for "
999 "consistent allocations\n", pci_name(pdev));
1001 goto out_disable_pdev;
1004 } else if ((err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32))) != 0) {
1005 pr_err("%s: no usable DMA configuration\n", pci_name(pdev));
1006 goto out_disable_pdev;
1009 err = pci_request_regions(pdev, DRV_NAME);
1011 pr_err("%s: cannot obtain PCI resources\n", pci_name(pdev));
1012 goto out_disable_pdev;
1015 pci_set_master(pdev);
1017 mmio_start = pci_resource_start(pdev, 0);
1018 mmio_len = pci_resource_len(pdev, 0);
1019 bi = t1_get_board_info(ent->driver_data);
1021 for (i = 0; i < bi->port_number; ++i) {
1022 struct net_device *netdev;
1024 netdev = alloc_etherdev(adapter ? 0 : sizeof(*adapter));
1030 SET_NETDEV_DEV(netdev, &pdev->dev);
1033 adapter = netdev_priv(netdev);
1034 adapter->pdev = pdev;
1035 adapter->port[0].dev = netdev; /* so we don't leak it */
1037 adapter->regs = ioremap(mmio_start, mmio_len);
1038 if (!adapter->regs) {
1039 pr_err("%s: cannot map device registers\n",
1045 if (t1_get_board_rev(adapter, bi, &adapter->params)) {
1046 err = -ENODEV; /* Can't handle this chip rev */
1050 adapter->name = pci_name(pdev);
1051 adapter->msg_enable = dflt_msg_enable;
1052 adapter->mmio_len = mmio_len;
1054 spin_lock_init(&adapter->tpi_lock);
1055 spin_lock_init(&adapter->work_lock);
1056 spin_lock_init(&adapter->async_lock);
1057 spin_lock_init(&adapter->mac_lock);
1059 INIT_WORK(&adapter->ext_intr_handler_task,
1061 INIT_DELAYED_WORK(&adapter->stats_update_task,
1064 pci_set_drvdata(pdev, netdev);
1067 pi = &adapter->port[i];
1069 netif_carrier_off(netdev);
1070 netdev->irq = pdev->irq;
1071 netdev->if_port = i;
1072 netdev->mem_start = mmio_start;
1073 netdev->mem_end = mmio_start + mmio_len - 1;
1074 netdev->ml_priv = adapter;
1075 netdev->hw_features |= NETIF_F_SG | NETIF_F_IP_CSUM |
1077 netdev->features |= NETIF_F_SG | NETIF_F_IP_CSUM |
1078 NETIF_F_RXCSUM | NETIF_F_LLTX;
1081 netdev->features |= NETIF_F_HIGHDMA;
1082 if (vlan_tso_capable(adapter)) {
1084 NETIF_F_HW_VLAN_CTAG_TX |
1085 NETIF_F_HW_VLAN_CTAG_RX;
1086 netdev->hw_features |= NETIF_F_HW_VLAN_CTAG_RX;
1088 /* T204: disable TSO */
1089 if (!(is_T2(adapter)) || bi->port_number != 4) {
1090 netdev->hw_features |= NETIF_F_TSO;
1091 netdev->features |= NETIF_F_TSO;
1095 netdev->netdev_ops = &cxgb_netdev_ops;
1096 netdev->hard_header_len += (netdev->hw_features & NETIF_F_TSO) ?
1097 sizeof(struct cpl_tx_pkt_lso) : sizeof(struct cpl_tx_pkt);
1099 netif_napi_add(netdev, &adapter->napi, t1_poll, 64);
1101 netdev->ethtool_ops = &t1_ethtool_ops;
1103 switch (bi->board) {
1104 case CHBT_BOARD_CHT110:
1105 case CHBT_BOARD_N110:
1106 case CHBT_BOARD_N210:
1107 case CHBT_BOARD_CHT210:
1108 netdev->max_mtu = PM3393_MAX_FRAME_SIZE -
1109 (ETH_HLEN + ETH_FCS_LEN);
1111 case CHBT_BOARD_CHN204:
1112 netdev->max_mtu = VSC7326_MAX_MTU;
1115 netdev->max_mtu = ETH_DATA_LEN;
1120 if (t1_init_sw_modules(adapter, bi) < 0) {
1126 * The card is now ready to go. If any errors occur during device
1127 * registration we do not fail the whole card but rather proceed only
1128 * with the ports we manage to register successfully. However we must
1129 * register at least one net device.
1131 for (i = 0; i < bi->port_number; ++i) {
1132 err = register_netdev(adapter->port[i].dev);
1134 pr_warn("%s: cannot register net device %s, skipping\n",
1135 pci_name(pdev), adapter->port[i].dev->name);
1138 * Change the name we use for messages to the name of
1139 * the first successfully registered interface.
1141 if (!adapter->registered_device_map)
1142 adapter->name = adapter->port[i].dev->name;
1144 __set_bit(i, &adapter->registered_device_map);
1147 if (!adapter->registered_device_map) {
1148 pr_err("%s: could not register any net devices\n",
1150 goto out_release_adapter_res;
1153 pr_info("%s: %s (rev %d), %s %dMHz/%d-bit\n",
1154 adapter->name, bi->desc, adapter->params.chip_revision,
1155 adapter->params.pci.is_pcix ? "PCIX" : "PCI",
1156 adapter->params.pci.speed, adapter->params.pci.width);
1159 * Set the T1B ASIC and memory clocks.
1162 adapter->t1powersave = LCLOCK; /* HW default is powersave mode. */
1164 adapter->t1powersave = HCLOCK;
1165 if (t1_is_T1B(adapter))
1166 t1_clock(adapter, t1powersave);
1170 out_release_adapter_res:
1171 t1_free_sw_modules(adapter);
1175 iounmap(adapter->regs);
1176 for (i = bi->port_number - 1; i >= 0; --i)
1177 if (adapter->port[i].dev)
1178 free_netdev(adapter->port[i].dev);
1180 pci_release_regions(pdev);
1182 pci_disable_device(pdev);
1186 static void bit_bang(struct adapter *adapter, int bitdata, int nbits)
1197 for (i = (nbits - 1); i > -1; i--) {
1201 data = ((bitdata >> i) & 0x1);
1202 __t1_tpi_read(adapter, A_ELMER0_GPO, &val);
1211 /* Set SCLOCK low */
1213 __t1_tpi_write(adapter, A_ELMER0_GPO, val);
1217 /* Write SCLOCK high */
1219 __t1_tpi_write(adapter, A_ELMER0_GPO, val);
1224 static int t1_clock(struct adapter *adapter, int mode)
1242 S_LOAD_MEM = 1 << 5,
1243 S_LOAD_CORE = 1 << 6,
1247 if (!t1_is_T1B(adapter))
1248 return -ENODEV; /* Can't re-clock this chip. */
1251 return 0; /* show current mode. */
1253 if ((adapter->t1powersave & 1) == (mode & 1))
1254 return -EALREADY; /* ASIC already running in mode. */
1256 if ((mode & 1) == HCLOCK) {
1259 adapter->t1powersave = HCLOCK; /* overclock */
1263 adapter->t1powersave = LCLOCK; /* underclock */
1266 /* Don't interrupt this serial stream! */
1267 spin_lock(&adapter->tpi_lock);
1269 /* Initialize for ASIC core */
1270 __t1_tpi_read(adapter, A_ELMER0_GPO, &val);
1273 __t1_tpi_write(adapter, A_ELMER0_GPO, val);
1275 __t1_tpi_read(adapter, A_ELMER0_GPO, &val);
1276 val &= ~S_LOAD_CORE;
1278 __t1_tpi_write(adapter, A_ELMER0_GPO, val);
1281 /* Serial program the ASIC clock synthesizer */
1282 bit_bang(adapter, T_CORE_VAL, T_CORE_BITS);
1283 bit_bang(adapter, N_CORE_VAL, N_CORE_BITS);
1284 bit_bang(adapter, M_CORE_VAL, M_CORE_BITS);
1287 /* Finish ASIC core */
1288 __t1_tpi_read(adapter, A_ELMER0_GPO, &val);
1291 __t1_tpi_write(adapter, A_ELMER0_GPO, val);
1293 __t1_tpi_read(adapter, A_ELMER0_GPO, &val);
1294 val &= ~S_LOAD_CORE;
1296 __t1_tpi_write(adapter, A_ELMER0_GPO, val);
1299 /* Initialize for memory */
1300 __t1_tpi_read(adapter, A_ELMER0_GPO, &val);
1303 __t1_tpi_write(adapter, A_ELMER0_GPO, val);
1305 __t1_tpi_read(adapter, A_ELMER0_GPO, &val);
1309 __t1_tpi_write(adapter, A_ELMER0_GPO, val);
1312 /* Serial program the memory clock synthesizer */
1313 bit_bang(adapter, T_MEM_VAL, T_MEM_BITS);
1314 bit_bang(adapter, N_MEM_VAL, N_MEM_BITS);
1315 bit_bang(adapter, M_MEM_VAL, M_MEM_BITS);
1319 __t1_tpi_read(adapter, A_ELMER0_GPO, &val);
1322 __t1_tpi_write(adapter, A_ELMER0_GPO, val);
1324 __t1_tpi_read(adapter, A_ELMER0_GPO, &val);
1327 __t1_tpi_write(adapter, A_ELMER0_GPO, val);
1329 spin_unlock(&adapter->tpi_lock);
1334 static inline void t1_sw_reset(struct pci_dev *pdev)
1336 pci_write_config_dword(pdev, A_PCICFG_PM_CSR, 3);
1337 pci_write_config_dword(pdev, A_PCICFG_PM_CSR, 0);
1340 static void remove_one(struct pci_dev *pdev)
1342 struct net_device *dev = pci_get_drvdata(pdev);
1343 struct adapter *adapter = dev->ml_priv;
1346 for_each_port(adapter, i) {
1347 if (test_bit(i, &adapter->registered_device_map))
1348 unregister_netdev(adapter->port[i].dev);
1351 t1_free_sw_modules(adapter);
1352 iounmap(adapter->regs);
1355 if (adapter->port[i].dev)
1356 free_netdev(adapter->port[i].dev);
1359 pci_release_regions(pdev);
1360 pci_disable_device(pdev);
1364 static struct pci_driver cxgb_pci_driver = {
1366 .id_table = t1_pci_tbl,
1368 .remove = remove_one,
1371 module_pci_driver(cxgb_pci_driver);