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, write to the Free Software Foundation, Inc., *
15 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
17 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED *
18 * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF *
19 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. *
21 * http://www.chelsio.com *
23 * Copyright (c) 2003 - 2005 Chelsio Communications, Inc. *
24 * All rights reserved. *
26 * Maintainers: maintainers@chelsio.com *
28 * Authors: Dimitrios Michailidis <dm@chelsio.com> *
29 * Tina Yang <tainay@chelsio.com> *
30 * Felix Marti <felix@chelsio.com> *
31 * Scott Bardone <sbardone@chelsio.com> *
32 * Kurt Ottaway <kottaway@chelsio.com> *
33 * Frank DiMambro <frank@chelsio.com> *
37 ****************************************************************************/
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>
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 MIN_FL_ENTRIES 32
78 #define PORT_MASK ((1 << MAX_NPORTS) - 1)
80 #define DFLT_MSG_ENABLE (NETIF_MSG_DRV | NETIF_MSG_PROBE | NETIF_MSG_LINK | \
81 NETIF_MSG_TIMER | NETIF_MSG_IFDOWN | NETIF_MSG_IFUP |\
82 NETIF_MSG_RX_ERR | NETIF_MSG_TX_ERR)
85 * The EEPROM is actually bigger but only the first few bytes are used so we
88 #define EEPROM_SIZE 32
90 MODULE_DESCRIPTION(DRV_DESCRIPTION);
91 MODULE_AUTHOR("Chelsio Communications");
92 MODULE_LICENSE("GPL");
94 static int dflt_msg_enable = DFLT_MSG_ENABLE;
96 module_param(dflt_msg_enable, int, 0);
97 MODULE_PARM_DESC(dflt_msg_enable, "Chelsio T1 message enable bitmap");
100 static const char pci_speed[][4] = {
101 "33", "66", "100", "133"
105 * Setup MAC to receive the types of packets we want.
107 static void t1_set_rxmode(struct net_device *dev)
109 struct adapter *adapter = dev->priv;
110 struct cmac *mac = adapter->port[dev->if_port].mac;
111 struct t1_rx_mode rm;
115 rm.list = dev->mc_list;
116 mac->ops->set_rx_mode(mac, &rm);
119 static void link_report(struct port_info *p)
121 if (!netif_carrier_ok(p->dev))
122 printk(KERN_INFO "%s: link down\n", p->dev->name);
124 const char *s = "10Mbps";
126 switch (p->link_config.speed) {
127 case SPEED_10000: s = "10Gbps"; break;
128 case SPEED_1000: s = "1000Mbps"; break;
129 case SPEED_100: s = "100Mbps"; break;
132 printk(KERN_INFO "%s: link up, %s, %s-duplex\n",
134 p->link_config.duplex == DUPLEX_FULL ? "full" : "half");
138 void t1_link_changed(struct adapter *adapter, int port_id, int link_stat,
139 int speed, int duplex, int pause)
141 struct port_info *p = &adapter->port[port_id];
143 if (link_stat != netif_carrier_ok(p->dev)) {
145 netif_carrier_on(p->dev);
147 netif_carrier_off(p->dev);
153 static void link_start(struct port_info *p)
155 struct cmac *mac = p->mac;
157 mac->ops->reset(mac);
158 if (mac->ops->macaddress_set)
159 mac->ops->macaddress_set(mac, p->dev->dev_addr);
160 t1_set_rxmode(p->dev);
161 t1_link_start(p->phy, mac, &p->link_config);
162 mac->ops->enable(mac, MAC_DIRECTION_RX | MAC_DIRECTION_TX);
165 static void enable_hw_csum(struct adapter *adapter)
167 if (adapter->flags & TSO_CAPABLE)
168 t1_tp_set_ip_checksum_offload(adapter, 1); /* for TSO only */
169 t1_tp_set_tcp_checksum_offload(adapter, 1);
173 * Things to do upon first use of a card.
174 * This must run with the rtnl lock held.
176 static int cxgb_up(struct adapter *adapter)
180 if (!(adapter->flags & FULL_INIT_DONE)) {
181 err = t1_init_hw_modules(adapter);
185 enable_hw_csum(adapter);
186 adapter->flags |= FULL_INIT_DONE;
189 t1_interrupts_clear(adapter);
190 if ((err = request_irq(adapter->pdev->irq,
191 t1_select_intr_handler(adapter), IRQF_SHARED,
192 adapter->name, adapter))) {
195 t1_sge_start(adapter->sge);
196 t1_interrupts_enable(adapter);
202 * Release resources when all the ports have been stopped.
204 static void cxgb_down(struct adapter *adapter)
206 t1_sge_stop(adapter->sge);
207 t1_interrupts_disable(adapter);
208 free_irq(adapter->pdev->irq, adapter);
211 static int cxgb_open(struct net_device *dev)
214 struct adapter *adapter = dev->priv;
215 int other_ports = adapter->open_device_map & PORT_MASK;
217 if (!adapter->open_device_map && (err = cxgb_up(adapter)) < 0)
220 __set_bit(dev->if_port, &adapter->open_device_map);
221 link_start(&adapter->port[dev->if_port]);
222 netif_start_queue(dev);
223 if (!other_ports && adapter->params.stats_update_period)
224 schedule_mac_stats_update(adapter,
225 adapter->params.stats_update_period);
229 static int cxgb_close(struct net_device *dev)
231 struct adapter *adapter = dev->priv;
232 struct port_info *p = &adapter->port[dev->if_port];
233 struct cmac *mac = p->mac;
235 netif_stop_queue(dev);
236 mac->ops->disable(mac, MAC_DIRECTION_TX | MAC_DIRECTION_RX);
237 netif_carrier_off(dev);
239 clear_bit(dev->if_port, &adapter->open_device_map);
240 if (adapter->params.stats_update_period &&
241 !(adapter->open_device_map & PORT_MASK)) {
242 /* Stop statistics accumulation. */
243 smp_mb__after_clear_bit();
244 spin_lock(&adapter->work_lock); /* sync with update task */
245 spin_unlock(&adapter->work_lock);
246 cancel_mac_stats_update(adapter);
249 if (!adapter->open_device_map)
254 static struct net_device_stats *t1_get_stats(struct net_device *dev)
256 struct adapter *adapter = dev->priv;
257 struct port_info *p = &adapter->port[dev->if_port];
258 struct net_device_stats *ns = &p->netstats;
259 const struct cmac_statistics *pstats;
261 /* Do a full update of the MAC stats */
262 pstats = p->mac->ops->statistics_update(p->mac,
263 MAC_STATS_UPDATE_FULL);
265 ns->tx_packets = pstats->TxUnicastFramesOK +
266 pstats->TxMulticastFramesOK + pstats->TxBroadcastFramesOK;
268 ns->rx_packets = pstats->RxUnicastFramesOK +
269 pstats->RxMulticastFramesOK + pstats->RxBroadcastFramesOK;
271 ns->tx_bytes = pstats->TxOctetsOK;
272 ns->rx_bytes = pstats->RxOctetsOK;
274 ns->tx_errors = pstats->TxLateCollisions + pstats->TxLengthErrors +
275 pstats->TxUnderrun + pstats->TxFramesAbortedDueToXSCollisions;
276 ns->rx_errors = pstats->RxDataErrors + pstats->RxJabberErrors +
277 pstats->RxFCSErrors + pstats->RxAlignErrors +
278 pstats->RxSequenceErrors + pstats->RxFrameTooLongErrors +
279 pstats->RxSymbolErrors + pstats->RxRuntErrors;
281 ns->multicast = pstats->RxMulticastFramesOK;
282 ns->collisions = pstats->TxTotalCollisions;
284 /* detailed rx_errors */
285 ns->rx_length_errors = pstats->RxFrameTooLongErrors +
286 pstats->RxJabberErrors;
287 ns->rx_over_errors = 0;
288 ns->rx_crc_errors = pstats->RxFCSErrors;
289 ns->rx_frame_errors = pstats->RxAlignErrors;
290 ns->rx_fifo_errors = 0;
291 ns->rx_missed_errors = 0;
293 /* detailed tx_errors */
294 ns->tx_aborted_errors = pstats->TxFramesAbortedDueToXSCollisions;
295 ns->tx_carrier_errors = 0;
296 ns->tx_fifo_errors = pstats->TxUnderrun;
297 ns->tx_heartbeat_errors = 0;
298 ns->tx_window_errors = pstats->TxLateCollisions;
302 static u32 get_msglevel(struct net_device *dev)
304 struct adapter *adapter = dev->priv;
306 return adapter->msg_enable;
309 static void set_msglevel(struct net_device *dev, u32 val)
311 struct adapter *adapter = dev->priv;
313 adapter->msg_enable = val;
316 static char stats_strings[][ETH_GSTRING_LEN] = {
320 "TxMulticastFramesOK",
321 "TxBroadcastFramesOK",
323 "TxFramesWithDeferredXmissions",
326 "TxFramesAbortedDueToXSCollisions",
329 "TxInternalMACXmitError",
330 "TxFramesWithExcessiveDeferral",
336 "RxMulticastFramesOK",
337 "RxBroadcastFramesOK",
346 "RxInternalMACRcvError",
347 "RxInRangeLengthErrors",
348 "RxOutOfRangeLengthField",
349 "RxFrameTooLongErrors",
370 "espi_DIP2ParityErr",
378 #define T2_REGMAP_SIZE (3 * 1024)
380 static int get_regs_len(struct net_device *dev)
382 return T2_REGMAP_SIZE;
385 static void get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
387 struct adapter *adapter = dev->priv;
389 strcpy(info->driver, DRV_NAME);
390 strcpy(info->version, DRV_VERSION);
391 strcpy(info->fw_version, "N/A");
392 strcpy(info->bus_info, pci_name(adapter->pdev));
395 static int get_stats_count(struct net_device *dev)
397 return ARRAY_SIZE(stats_strings);
400 static void get_strings(struct net_device *dev, u32 stringset, u8 *data)
402 if (stringset == ETH_SS_STATS)
403 memcpy(data, stats_strings, sizeof(stats_strings));
406 static void get_stats(struct net_device *dev, struct ethtool_stats *stats,
409 struct adapter *adapter = dev->priv;
410 struct cmac *mac = adapter->port[dev->if_port].mac;
411 const struct cmac_statistics *s;
412 const struct sge_port_stats *ss;
413 const struct sge_intr_counts *t;
415 s = mac->ops->statistics_update(mac, MAC_STATS_UPDATE_FULL);
416 ss = t1_sge_get_port_stats(adapter->sge, dev->if_port);
417 t = t1_sge_get_intr_counts(adapter->sge);
419 *data++ = s->TxOctetsOK;
420 *data++ = s->TxOctetsBad;
421 *data++ = s->TxUnicastFramesOK;
422 *data++ = s->TxMulticastFramesOK;
423 *data++ = s->TxBroadcastFramesOK;
424 *data++ = s->TxPauseFrames;
425 *data++ = s->TxFramesWithDeferredXmissions;
426 *data++ = s->TxLateCollisions;
427 *data++ = s->TxTotalCollisions;
428 *data++ = s->TxFramesAbortedDueToXSCollisions;
429 *data++ = s->TxUnderrun;
430 *data++ = s->TxLengthErrors;
431 *data++ = s->TxInternalMACXmitError;
432 *data++ = s->TxFramesWithExcessiveDeferral;
433 *data++ = s->TxFCSErrors;
435 *data++ = s->RxOctetsOK;
436 *data++ = s->RxOctetsBad;
437 *data++ = s->RxUnicastFramesOK;
438 *data++ = s->RxMulticastFramesOK;
439 *data++ = s->RxBroadcastFramesOK;
440 *data++ = s->RxPauseFrames;
441 *data++ = s->RxFCSErrors;
442 *data++ = s->RxAlignErrors;
443 *data++ = s->RxSymbolErrors;
444 *data++ = s->RxDataErrors;
445 *data++ = s->RxSequenceErrors;
446 *data++ = s->RxRuntErrors;
447 *data++ = s->RxJabberErrors;
448 *data++ = s->RxInternalMACRcvError;
449 *data++ = s->RxInRangeLengthErrors;
450 *data++ = s->RxOutOfRangeLengthField;
451 *data++ = s->RxFrameTooLongErrors;
454 *data++ = ss->vlan_xtract;
455 *data++ = ss->vlan_insert;
456 *data++ = ss->rx_cso_good;
457 *data++ = ss->tx_cso;
458 *data++ = ss->rx_drops;
460 *data++ = (u64)t->respQ_empty;
461 *data++ = (u64)t->respQ_overflow;
462 *data++ = (u64)t->freelistQ_empty;
463 *data++ = (u64)t->pkt_too_big;
464 *data++ = (u64)t->pkt_mismatch;
465 *data++ = (u64)t->cmdQ_full[0];
466 *data++ = (u64)t->cmdQ_full[1];
467 *data++ = (u64)t->tx_ipfrags;
468 *data++ = (u64)t->tx_reg_pkts;
469 *data++ = (u64)t->tx_lso_pkts;
470 *data++ = (u64)t->tx_do_cksum;
473 static inline void reg_block_dump(struct adapter *ap, void *buf,
474 unsigned int start, unsigned int end)
476 u32 *p = buf + start;
478 for ( ; start <= end; start += sizeof(u32))
479 *p++ = readl(ap->regs + start);
482 static void get_regs(struct net_device *dev, struct ethtool_regs *regs,
485 struct adapter *ap = dev->priv;
488 * Version scheme: bits 0..9: chip version, bits 10..15: chip revision
492 memset(buf, 0, T2_REGMAP_SIZE);
493 reg_block_dump(ap, buf, 0, A_SG_RESPACCUTIMER);
496 static int get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
498 struct adapter *adapter = dev->priv;
499 struct port_info *p = &adapter->port[dev->if_port];
501 cmd->supported = p->link_config.supported;
502 cmd->advertising = p->link_config.advertising;
504 if (netif_carrier_ok(dev)) {
505 cmd->speed = p->link_config.speed;
506 cmd->duplex = p->link_config.duplex;
512 cmd->port = (cmd->supported & SUPPORTED_TP) ? PORT_TP : PORT_FIBRE;
513 cmd->phy_address = p->phy->addr;
514 cmd->transceiver = XCVR_EXTERNAL;
515 cmd->autoneg = p->link_config.autoneg;
521 static int speed_duplex_to_caps(int speed, int duplex)
527 if (duplex == DUPLEX_FULL)
528 cap = SUPPORTED_10baseT_Full;
530 cap = SUPPORTED_10baseT_Half;
533 if (duplex == DUPLEX_FULL)
534 cap = SUPPORTED_100baseT_Full;
536 cap = SUPPORTED_100baseT_Half;
539 if (duplex == DUPLEX_FULL)
540 cap = SUPPORTED_1000baseT_Full;
542 cap = SUPPORTED_1000baseT_Half;
545 if (duplex == DUPLEX_FULL)
546 cap = SUPPORTED_10000baseT_Full;
551 #define ADVERTISED_MASK (ADVERTISED_10baseT_Half | ADVERTISED_10baseT_Full | \
552 ADVERTISED_100baseT_Half | ADVERTISED_100baseT_Full | \
553 ADVERTISED_1000baseT_Half | ADVERTISED_1000baseT_Full | \
554 ADVERTISED_10000baseT_Full)
556 static int set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
558 struct adapter *adapter = dev->priv;
559 struct port_info *p = &adapter->port[dev->if_port];
560 struct link_config *lc = &p->link_config;
562 if (!(lc->supported & SUPPORTED_Autoneg))
563 return -EOPNOTSUPP; /* can't change speed/duplex */
565 if (cmd->autoneg == AUTONEG_DISABLE) {
566 int cap = speed_duplex_to_caps(cmd->speed, cmd->duplex);
568 if (!(lc->supported & cap) || cmd->speed == SPEED_1000)
570 lc->requested_speed = cmd->speed;
571 lc->requested_duplex = cmd->duplex;
574 cmd->advertising &= ADVERTISED_MASK;
575 if (cmd->advertising & (cmd->advertising - 1))
576 cmd->advertising = lc->supported;
577 cmd->advertising &= lc->supported;
578 if (!cmd->advertising)
580 lc->requested_speed = SPEED_INVALID;
581 lc->requested_duplex = DUPLEX_INVALID;
582 lc->advertising = cmd->advertising | ADVERTISED_Autoneg;
584 lc->autoneg = cmd->autoneg;
585 if (netif_running(dev))
586 t1_link_start(p->phy, p->mac, lc);
590 static void get_pauseparam(struct net_device *dev,
591 struct ethtool_pauseparam *epause)
593 struct adapter *adapter = dev->priv;
594 struct port_info *p = &adapter->port[dev->if_port];
596 epause->autoneg = (p->link_config.requested_fc & PAUSE_AUTONEG) != 0;
597 epause->rx_pause = (p->link_config.fc & PAUSE_RX) != 0;
598 epause->tx_pause = (p->link_config.fc & PAUSE_TX) != 0;
601 static int set_pauseparam(struct net_device *dev,
602 struct ethtool_pauseparam *epause)
604 struct adapter *adapter = dev->priv;
605 struct port_info *p = &adapter->port[dev->if_port];
606 struct link_config *lc = &p->link_config;
608 if (epause->autoneg == AUTONEG_DISABLE)
609 lc->requested_fc = 0;
610 else if (lc->supported & SUPPORTED_Autoneg)
611 lc->requested_fc = PAUSE_AUTONEG;
615 if (epause->rx_pause)
616 lc->requested_fc |= PAUSE_RX;
617 if (epause->tx_pause)
618 lc->requested_fc |= PAUSE_TX;
619 if (lc->autoneg == AUTONEG_ENABLE) {
620 if (netif_running(dev))
621 t1_link_start(p->phy, p->mac, lc);
623 lc->fc = lc->requested_fc & (PAUSE_RX | PAUSE_TX);
624 if (netif_running(dev))
625 p->mac->ops->set_speed_duplex_fc(p->mac, -1, -1,
631 static u32 get_rx_csum(struct net_device *dev)
633 struct adapter *adapter = dev->priv;
635 return (adapter->flags & RX_CSUM_ENABLED) != 0;
638 static int set_rx_csum(struct net_device *dev, u32 data)
640 struct adapter *adapter = dev->priv;
643 adapter->flags |= RX_CSUM_ENABLED;
645 adapter->flags &= ~RX_CSUM_ENABLED;
649 static int set_tso(struct net_device *dev, u32 value)
651 struct adapter *adapter = dev->priv;
653 if (!(adapter->flags & TSO_CAPABLE))
654 return value ? -EOPNOTSUPP : 0;
655 return ethtool_op_set_tso(dev, value);
658 static void get_sge_param(struct net_device *dev, struct ethtool_ringparam *e)
660 struct adapter *adapter = dev->priv;
661 int jumbo_fl = t1_is_T1B(adapter) ? 1 : 0;
663 e->rx_max_pending = MAX_RX_BUFFERS;
664 e->rx_mini_max_pending = 0;
665 e->rx_jumbo_max_pending = MAX_RX_JUMBO_BUFFERS;
666 e->tx_max_pending = MAX_CMDQ_ENTRIES;
668 e->rx_pending = adapter->params.sge.freelQ_size[!jumbo_fl];
669 e->rx_mini_pending = 0;
670 e->rx_jumbo_pending = adapter->params.sge.freelQ_size[jumbo_fl];
671 e->tx_pending = adapter->params.sge.cmdQ_size[0];
674 static int set_sge_param(struct net_device *dev, struct ethtool_ringparam *e)
676 struct adapter *adapter = dev->priv;
677 int jumbo_fl = t1_is_T1B(adapter) ? 1 : 0;
679 if (e->rx_pending > MAX_RX_BUFFERS || e->rx_mini_pending ||
680 e->rx_jumbo_pending > MAX_RX_JUMBO_BUFFERS ||
681 e->tx_pending > MAX_CMDQ_ENTRIES ||
682 e->rx_pending < MIN_FL_ENTRIES ||
683 e->rx_jumbo_pending < MIN_FL_ENTRIES ||
684 e->tx_pending < (adapter->params.nports + 1) * (MAX_SKB_FRAGS + 1))
687 if (adapter->flags & FULL_INIT_DONE)
690 adapter->params.sge.freelQ_size[!jumbo_fl] = e->rx_pending;
691 adapter->params.sge.freelQ_size[jumbo_fl] = e->rx_jumbo_pending;
692 adapter->params.sge.cmdQ_size[0] = e->tx_pending;
693 adapter->params.sge.cmdQ_size[1] = e->tx_pending > MAX_CMDQ1_ENTRIES ?
694 MAX_CMDQ1_ENTRIES : e->tx_pending;
698 static int set_coalesce(struct net_device *dev, struct ethtool_coalesce *c)
700 struct adapter *adapter = dev->priv;
703 * If RX coalescing is requested we use NAPI, otherwise interrupts.
704 * This choice can be made only when all ports and the TOE are off.
706 if (adapter->open_device_map == 0)
707 adapter->params.sge.polling = c->use_adaptive_rx_coalesce;
709 if (adapter->params.sge.polling) {
710 adapter->params.sge.rx_coalesce_usecs = 0;
712 adapter->params.sge.rx_coalesce_usecs = c->rx_coalesce_usecs;
714 adapter->params.sge.coalesce_enable = c->use_adaptive_rx_coalesce;
715 adapter->params.sge.sample_interval_usecs = c->rate_sample_interval;
716 t1_sge_set_coalesce_params(adapter->sge, &adapter->params.sge);
720 static int get_coalesce(struct net_device *dev, struct ethtool_coalesce *c)
722 struct adapter *adapter = dev->priv;
724 c->rx_coalesce_usecs = adapter->params.sge.rx_coalesce_usecs;
725 c->rate_sample_interval = adapter->params.sge.sample_interval_usecs;
726 c->use_adaptive_rx_coalesce = adapter->params.sge.coalesce_enable;
730 static int get_eeprom_len(struct net_device *dev)
735 #define EEPROM_MAGIC(ap) \
736 (PCI_VENDOR_ID_CHELSIO | ((ap)->params.chip_version << 16))
738 static int get_eeprom(struct net_device *dev, struct ethtool_eeprom *e,
742 u8 buf[EEPROM_SIZE] __attribute__((aligned(4)));
743 struct adapter *adapter = dev->priv;
745 e->magic = EEPROM_MAGIC(adapter);
746 for (i = e->offset & ~3; i < e->offset + e->len; i += sizeof(u32))
747 t1_seeprom_read(adapter, i, (u32 *)&buf[i]);
748 memcpy(data, buf + e->offset, e->len);
752 static const struct ethtool_ops t1_ethtool_ops = {
753 .get_settings = get_settings,
754 .set_settings = set_settings,
755 .get_drvinfo = get_drvinfo,
756 .get_msglevel = get_msglevel,
757 .set_msglevel = set_msglevel,
758 .get_ringparam = get_sge_param,
759 .set_ringparam = set_sge_param,
760 .get_coalesce = get_coalesce,
761 .set_coalesce = set_coalesce,
762 .get_eeprom_len = get_eeprom_len,
763 .get_eeprom = get_eeprom,
764 .get_pauseparam = get_pauseparam,
765 .set_pauseparam = set_pauseparam,
766 .get_rx_csum = get_rx_csum,
767 .set_rx_csum = set_rx_csum,
768 .get_tx_csum = ethtool_op_get_tx_csum,
769 .set_tx_csum = ethtool_op_set_tx_csum,
770 .get_sg = ethtool_op_get_sg,
771 .set_sg = ethtool_op_set_sg,
772 .get_link = ethtool_op_get_link,
773 .get_strings = get_strings,
774 .get_stats_count = get_stats_count,
775 .get_ethtool_stats = get_stats,
776 .get_regs_len = get_regs_len,
777 .get_regs = get_regs,
778 .get_tso = ethtool_op_get_tso,
782 static int t1_ioctl(struct net_device *dev, struct ifreq *req, int cmd)
784 struct adapter *adapter = dev->priv;
785 struct mii_ioctl_data *data = if_mii(req);
789 data->phy_id = adapter->port[dev->if_port].phy->addr;
792 struct cphy *phy = adapter->port[dev->if_port].phy;
797 phy->mdio_read(adapter, data->phy_id, 0, data->reg_num & 0x1f,
803 struct cphy *phy = adapter->port[dev->if_port].phy;
805 if (!capable(CAP_NET_ADMIN))
807 if (!phy->mdio_write)
809 phy->mdio_write(adapter, data->phy_id, 0, data->reg_num & 0x1f,
820 static int t1_change_mtu(struct net_device *dev, int new_mtu)
823 struct adapter *adapter = dev->priv;
824 struct cmac *mac = adapter->port[dev->if_port].mac;
826 if (!mac->ops->set_mtu)
830 if ((ret = mac->ops->set_mtu(mac, new_mtu)))
836 static int t1_set_mac_addr(struct net_device *dev, void *p)
838 struct adapter *adapter = dev->priv;
839 struct cmac *mac = adapter->port[dev->if_port].mac;
840 struct sockaddr *addr = p;
842 if (!mac->ops->macaddress_set)
845 memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
846 mac->ops->macaddress_set(mac, dev->dev_addr);
850 #if defined(CONFIG_VLAN_8021Q) || defined(CONFIG_VLAN_8021Q_MODULE)
851 static void vlan_rx_register(struct net_device *dev,
852 struct vlan_group *grp)
854 struct adapter *adapter = dev->priv;
856 spin_lock_irq(&adapter->async_lock);
857 adapter->vlan_grp = grp;
858 t1_set_vlan_accel(adapter, grp != NULL);
859 spin_unlock_irq(&adapter->async_lock);
862 static void vlan_rx_kill_vid(struct net_device *dev, unsigned short vid)
864 struct adapter *adapter = dev->priv;
866 spin_lock_irq(&adapter->async_lock);
867 if (adapter->vlan_grp)
868 adapter->vlan_grp->vlan_devices[vid] = NULL;
869 spin_unlock_irq(&adapter->async_lock);
873 #ifdef CONFIG_NET_POLL_CONTROLLER
874 static void t1_netpoll(struct net_device *dev)
877 struct adapter *adapter = dev->priv;
879 local_irq_save(flags);
880 t1_select_intr_handler(adapter)(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(void *data)
892 struct adapter *adapter = data;
894 for_each_port(adapter, i) {
895 struct port_info *p = &adapter->port[i];
897 if (netif_running(p->dev))
898 p->mac->ops->statistics_update(p->mac,
899 MAC_STATS_UPDATE_FAST);
902 /* Schedule the next statistics update if any port is active. */
903 spin_lock(&adapter->work_lock);
904 if (adapter->open_device_map & PORT_MASK)
905 schedule_mac_stats_update(adapter,
906 adapter->params.stats_update_period);
907 spin_unlock(&adapter->work_lock);
911 * Processes elmer0 external interrupts in process context.
913 static void ext_intr_task(void *data)
915 struct adapter *adapter = data;
917 elmer0_ext_intr_handler(adapter);
919 /* Now reenable external interrupts */
920 spin_lock_irq(&adapter->async_lock);
921 adapter->slow_intr_mask |= F_PL_INTR_EXT;
922 writel(F_PL_INTR_EXT, adapter->regs + A_PL_CAUSE);
923 writel(adapter->slow_intr_mask | F_PL_INTR_SGE_DATA,
924 adapter->regs + A_PL_ENABLE);
925 spin_unlock_irq(&adapter->async_lock);
929 * Interrupt-context handler for elmer0 external interrupts.
931 void t1_elmer0_ext_intr(struct adapter *adapter)
934 * Schedule a task to handle external interrupts as we require
935 * a process context. We disable EXT interrupts in the interim
936 * and let the task reenable them when it's done.
938 adapter->slow_intr_mask &= ~F_PL_INTR_EXT;
939 writel(adapter->slow_intr_mask | F_PL_INTR_SGE_DATA,
940 adapter->regs + A_PL_ENABLE);
941 schedule_work(&adapter->ext_intr_handler_task);
944 void t1_fatal_err(struct adapter *adapter)
946 if (adapter->flags & FULL_INIT_DONE) {
947 t1_sge_stop(adapter->sge);
948 t1_interrupts_disable(adapter);
950 CH_ALERT("%s: encountered fatal error, operation suspended\n",
954 static int __devinit init_one(struct pci_dev *pdev,
955 const struct pci_device_id *ent)
957 static int version_printed;
959 int i, err, pci_using_dac = 0;
960 unsigned long mmio_start, mmio_len;
961 const struct board_info *bi;
962 struct adapter *adapter = NULL;
963 struct port_info *pi;
965 if (!version_printed) {
966 printk(KERN_INFO "%s - version %s\n", DRV_DESCRIPTION,
971 err = pci_enable_device(pdev);
975 if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
976 CH_ERR("%s: cannot find PCI device memory base address\n",
979 goto out_disable_pdev;
982 if (!pci_set_dma_mask(pdev, DMA_64BIT_MASK)) {
985 if (pci_set_consistent_dma_mask(pdev, DMA_64BIT_MASK)) {
986 CH_ERR("%s: unable to obtain 64-bit DMA for"
987 "consistent allocations\n", pci_name(pdev));
989 goto out_disable_pdev;
992 } else if ((err = pci_set_dma_mask(pdev, DMA_32BIT_MASK)) != 0) {
993 CH_ERR("%s: no usable DMA configuration\n", pci_name(pdev));
994 goto out_disable_pdev;
997 err = pci_request_regions(pdev, DRV_NAME);
999 CH_ERR("%s: cannot obtain PCI resources\n", pci_name(pdev));
1000 goto out_disable_pdev;
1003 pci_set_master(pdev);
1005 mmio_start = pci_resource_start(pdev, 0);
1006 mmio_len = pci_resource_len(pdev, 0);
1007 bi = t1_get_board_info(ent->driver_data);
1009 for (i = 0; i < bi->port_number; ++i) {
1010 struct net_device *netdev;
1012 netdev = alloc_etherdev(adapter ? 0 : sizeof(*adapter));
1018 SET_MODULE_OWNER(netdev);
1019 SET_NETDEV_DEV(netdev, &pdev->dev);
1022 adapter = netdev->priv;
1023 adapter->pdev = pdev;
1024 adapter->port[0].dev = netdev; /* so we don't leak it */
1026 adapter->regs = ioremap(mmio_start, mmio_len);
1027 if (!adapter->regs) {
1028 CH_ERR("%s: cannot map device registers\n",
1034 if (t1_get_board_rev(adapter, bi, &adapter->params)) {
1035 err = -ENODEV; /* Can't handle this chip rev */
1039 adapter->name = pci_name(pdev);
1040 adapter->msg_enable = dflt_msg_enable;
1041 adapter->mmio_len = mmio_len;
1043 init_MUTEX(&adapter->mib_mutex);
1044 spin_lock_init(&adapter->tpi_lock);
1045 spin_lock_init(&adapter->work_lock);
1046 spin_lock_init(&adapter->async_lock);
1048 INIT_WORK(&adapter->ext_intr_handler_task,
1049 ext_intr_task, adapter);
1050 INIT_WORK(&adapter->stats_update_task, mac_stats_task,
1053 pci_set_drvdata(pdev, netdev);
1056 pi = &adapter->port[i];
1058 netif_carrier_off(netdev);
1059 netdev->irq = pdev->irq;
1060 netdev->if_port = i;
1061 netdev->mem_start = mmio_start;
1062 netdev->mem_end = mmio_start + mmio_len - 1;
1063 netdev->priv = adapter;
1064 netdev->features |= NETIF_F_SG | NETIF_F_IP_CSUM;
1065 netdev->features |= NETIF_F_LLTX;
1067 adapter->flags |= RX_CSUM_ENABLED | TCP_CSUM_CAPABLE;
1069 netdev->features |= NETIF_F_HIGHDMA;
1070 if (vlan_tso_capable(adapter)) {
1071 #if defined(CONFIG_VLAN_8021Q) || defined(CONFIG_VLAN_8021Q_MODULE)
1072 adapter->flags |= VLAN_ACCEL_CAPABLE;
1074 NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX;
1075 netdev->vlan_rx_register = vlan_rx_register;
1076 netdev->vlan_rx_kill_vid = vlan_rx_kill_vid;
1078 adapter->flags |= TSO_CAPABLE;
1079 netdev->features |= NETIF_F_TSO;
1082 netdev->open = cxgb_open;
1083 netdev->stop = cxgb_close;
1084 netdev->hard_start_xmit = t1_start_xmit;
1085 netdev->hard_header_len += (adapter->flags & TSO_CAPABLE) ?
1086 sizeof(struct cpl_tx_pkt_lso) :
1087 sizeof(struct cpl_tx_pkt);
1088 netdev->get_stats = t1_get_stats;
1089 netdev->set_multicast_list = t1_set_rxmode;
1090 netdev->do_ioctl = t1_ioctl;
1091 netdev->change_mtu = t1_change_mtu;
1092 netdev->set_mac_address = t1_set_mac_addr;
1093 #ifdef CONFIG_NET_POLL_CONTROLLER
1094 netdev->poll_controller = t1_netpoll;
1096 netdev->weight = 64;
1098 SET_ETHTOOL_OPS(netdev, &t1_ethtool_ops);
1101 if (t1_init_sw_modules(adapter, bi) < 0) {
1107 * The card is now ready to go. If any errors occur during device
1108 * registration we do not fail the whole card but rather proceed only
1109 * with the ports we manage to register successfully. However we must
1110 * register at least one net device.
1112 for (i = 0; i < bi->port_number; ++i) {
1113 err = register_netdev(adapter->port[i].dev);
1115 CH_WARN("%s: cannot register net device %s, skipping\n",
1116 pci_name(pdev), adapter->port[i].dev->name);
1119 * Change the name we use for messages to the name of
1120 * the first successfully registered interface.
1122 if (!adapter->registered_device_map)
1123 adapter->name = adapter->port[i].dev->name;
1125 __set_bit(i, &adapter->registered_device_map);
1128 if (!adapter->registered_device_map) {
1129 CH_ERR("%s: could not register any net devices\n",
1131 goto out_release_adapter_res;
1134 printk(KERN_INFO "%s: %s (rev %d), %s %dMHz/%d-bit\n", adapter->name,
1135 bi->desc, adapter->params.chip_revision,
1136 adapter->params.pci.is_pcix ? "PCIX" : "PCI",
1137 adapter->params.pci.speed, adapter->params.pci.width);
1140 out_release_adapter_res:
1141 t1_free_sw_modules(adapter);
1145 iounmap(adapter->regs);
1146 for (i = bi->port_number - 1; i >= 0; --i)
1147 if (adapter->port[i].dev)
1148 free_netdev(adapter->port[i].dev);
1150 pci_release_regions(pdev);
1152 pci_disable_device(pdev);
1153 pci_set_drvdata(pdev, NULL);
1157 static inline void t1_sw_reset(struct pci_dev *pdev)
1159 pci_write_config_dword(pdev, A_PCICFG_PM_CSR, 3);
1160 pci_write_config_dword(pdev, A_PCICFG_PM_CSR, 0);
1163 static void __devexit remove_one(struct pci_dev *pdev)
1165 struct net_device *dev = pci_get_drvdata(pdev);
1169 struct adapter *adapter = dev->priv;
1171 for_each_port(adapter, i)
1172 if (test_bit(i, &adapter->registered_device_map))
1173 unregister_netdev(adapter->port[i].dev);
1175 t1_free_sw_modules(adapter);
1176 iounmap(adapter->regs);
1178 if (adapter->port[i].dev)
1179 free_netdev(adapter->port[i].dev);
1181 pci_release_regions(pdev);
1182 pci_disable_device(pdev);
1183 pci_set_drvdata(pdev, NULL);
1188 static struct pci_driver driver = {
1190 .id_table = t1_pci_tbl,
1192 .remove = __devexit_p(remove_one),
1195 static int __init t1_init_module(void)
1197 return pci_register_driver(&driver);
1200 static void __exit t1_cleanup_module(void)
1202 pci_unregister_driver(&driver);
1205 module_init(t1_init_module);
1206 module_exit(t1_cleanup_module);