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>
60 #include <linux/workqueue.h>
62 static inline void schedule_mac_stats_update(struct adapter *ap, int secs)
64 schedule_delayed_work(&ap->stats_update_task, secs * HZ);
67 static inline void cancel_mac_stats_update(struct adapter *ap)
69 cancel_delayed_work(&ap->stats_update_task);
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
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)
86 * The EEPROM is actually bigger but only the first few bytes are used so we
89 #define EEPROM_SIZE 32
91 MODULE_DESCRIPTION(DRV_DESCRIPTION);
92 MODULE_AUTHOR("Chelsio Communications");
93 MODULE_LICENSE("GPL");
95 static int dflt_msg_enable = DFLT_MSG_ENABLE;
97 module_param(dflt_msg_enable, int, 0);
98 MODULE_PARM_DESC(dflt_msg_enable, "Chelsio T1 default message enable bitmap");
103 /* T1 cards powersave mode */
104 static int t1_clock(struct adapter *adapter, int mode);
105 static int t1powersave = 1; /* HW default is powersave mode. */
107 module_param(t1powersave, int, 0);
108 MODULE_PARM_DESC(t1powersave, "Enable/Disable T1 powersaving mode");
110 static int disable_msi = 0;
111 module_param(disable_msi, int, 0);
112 MODULE_PARM_DESC(disable_msi, "Disable Message Signaled Interrupt (MSI)");
114 static const char pci_speed[][4] = {
115 "33", "66", "100", "133"
119 * Setup MAC to receive the types of packets we want.
121 static void t1_set_rxmode(struct net_device *dev)
123 struct adapter *adapter = dev->ml_priv;
124 struct cmac *mac = adapter->port[dev->if_port].mac;
125 struct t1_rx_mode rm;
128 mac->ops->set_rx_mode(mac, &rm);
131 static void link_report(struct port_info *p)
133 if (!netif_carrier_ok(p->dev))
134 netdev_info(p->dev, "link down\n");
136 const char *s = "10Mbps";
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;
144 netdev_info(p->dev, "link up, %s, %s-duplex\n",
145 s, p->link_config.duplex == DUPLEX_FULL
150 void t1_link_negotiated(struct adapter *adapter, int port_id, int link_stat,
151 int speed, int duplex, int pause)
153 struct port_info *p = &adapter->port[port_id];
155 if (link_stat != netif_carrier_ok(p->dev)) {
157 netif_carrier_on(p->dev);
159 netif_carrier_off(p->dev);
162 /* multi-ports: inform toe */
163 if ((speed > 0) && (adapter->params.nports > 1)) {
164 unsigned int sched_speed = 10;
176 t1_sched_update_parms(adapter->sge, port_id, 0, sched_speed);
181 static void link_start(struct port_info *p)
183 struct cmac *mac = p->mac;
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);
193 static void enable_hw_csum(struct adapter *adapter)
195 if (adapter->port[0].dev->hw_features & NETIF_F_TSO)
196 t1_tp_set_ip_checksum_offload(adapter->tp, 1); /* for TSO only */
197 t1_tp_set_tcp_checksum_offload(adapter->tp, 1);
201 * Things to do upon first use of a card.
202 * This must run with the rtnl lock held.
204 static int cxgb_up(struct adapter *adapter)
208 if (!(adapter->flags & FULL_INIT_DONE)) {
209 err = t1_init_hw_modules(adapter);
213 enable_hw_csum(adapter);
214 adapter->flags |= FULL_INIT_DONE;
217 t1_interrupts_clear(adapter);
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);
224 if (adapter->params.has_msi)
225 pci_disable_msi(adapter->pdev);
230 t1_sge_start(adapter->sge);
231 t1_interrupts_enable(adapter);
237 * Release resources when all the ports have been stopped.
239 static void cxgb_down(struct adapter *adapter)
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);
248 static int cxgb_open(struct net_device *dev)
251 struct adapter *adapter = dev->ml_priv;
252 int other_ports = adapter->open_device_map & PORT_MASK;
254 napi_enable(&adapter->napi);
255 if (!adapter->open_device_map && (err = cxgb_up(adapter)) < 0) {
256 napi_disable(&adapter->napi);
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);
267 t1_vlan_mode(adapter, dev->features);
271 static int cxgb_close(struct net_device *dev)
273 struct adapter *adapter = dev->ml_priv;
274 struct port_info *p = &adapter->port[dev->if_port];
275 struct cmac *mac = p->mac;
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);
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 /* Stop statistics accumulation. */
286 smp_mb__after_clear_bit();
287 spin_lock(&adapter->work_lock); /* sync with update task */
288 spin_unlock(&adapter->work_lock);
289 cancel_mac_stats_update(adapter);
292 if (!adapter->open_device_map)
297 static struct net_device_stats *t1_get_stats(struct net_device *dev)
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;
304 /* Do a full update of the MAC stats */
305 pstats = p->mac->ops->statistics_update(p->mac,
306 MAC_STATS_UPDATE_FULL);
308 ns->tx_packets = pstats->TxUnicastFramesOK +
309 pstats->TxMulticastFramesOK + pstats->TxBroadcastFramesOK;
311 ns->rx_packets = pstats->RxUnicastFramesOK +
312 pstats->RxMulticastFramesOK + pstats->RxBroadcastFramesOK;
314 ns->tx_bytes = pstats->TxOctetsOK;
315 ns->rx_bytes = pstats->RxOctetsOK;
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;
324 ns->multicast = pstats->RxMulticastFramesOK;
325 ns->collisions = pstats->TxTotalCollisions;
327 /* detailed rx_errors */
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;
336 /* detailed tx_errors */
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;
345 static u32 get_msglevel(struct net_device *dev)
347 struct adapter *adapter = dev->ml_priv;
349 return adapter->msg_enable;
352 static void set_msglevel(struct net_device *dev, u32 val)
354 struct adapter *adapter = dev->ml_priv;
356 adapter->msg_enable = val;
359 static char stats_strings[][ETH_GSTRING_LEN] = {
363 "TxMulticastFramesOK",
364 "TxBroadcastFramesOK",
366 "TxFramesWithDeferredXmissions",
369 "TxFramesAbortedDueToXSCollisions",
372 "TxInternalMACXmitError",
373 "TxFramesWithExcessiveDeferral",
381 "RxMulticastFramesOK",
382 "RxBroadcastFramesOK",
391 "RxInternalMACRcvError",
392 "RxInRangeLengthErrors",
393 "RxOutOfRangeLengthField",
394 "RxFrameTooLongErrors",
406 /* Interrupt stats */
418 "espi_DIP2ParityErr",
426 #define T2_REGMAP_SIZE (3 * 1024)
428 static int get_regs_len(struct net_device *dev)
430 return T2_REGMAP_SIZE;
433 static void get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
435 struct adapter *adapter = dev->ml_priv;
437 strlcpy(info->driver, DRV_NAME, sizeof(info->driver));
438 strlcpy(info->version, DRV_VERSION, sizeof(info->version));
439 strlcpy(info->bus_info, pci_name(adapter->pdev),
440 sizeof(info->bus_info));
443 static int get_sset_count(struct net_device *dev, int sset)
447 return ARRAY_SIZE(stats_strings);
453 static void get_strings(struct net_device *dev, u32 stringset, u8 *data)
455 if (stringset == ETH_SS_STATS)
456 memcpy(data, stats_strings, sizeof(stats_strings));
459 static void get_stats(struct net_device *dev, struct ethtool_stats *stats,
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;
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);
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;
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;
510 *data++ = ss.rx_cso_good;
513 *data++ = ss.vlan_xtract;
514 *data++ = ss.vlan_insert;
515 *data++ = ss.tx_need_hdrroom;
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];
529 const struct espi_intr_counts *e;
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;
541 static inline void reg_block_dump(struct adapter *ap, void *buf,
542 unsigned int start, unsigned int end)
544 u32 *p = buf + start;
546 for ( ; start <= end; start += sizeof(u32))
547 *p++ = readl(ap->regs + start);
550 static void get_regs(struct net_device *dev, struct ethtool_regs *regs,
553 struct adapter *ap = dev->ml_priv;
556 * Version scheme: bits 0..9: chip version, bits 10..15: chip revision
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);
573 static int get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
575 struct adapter *adapter = dev->ml_priv;
576 struct port_info *p = &adapter->port[dev->if_port];
578 cmd->supported = p->link_config.supported;
579 cmd->advertising = p->link_config.advertising;
581 if (netif_carrier_ok(dev)) {
582 ethtool_cmd_speed_set(cmd, p->link_config.speed);
583 cmd->duplex = p->link_config.duplex;
585 ethtool_cmd_speed_set(cmd, -1);
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;
598 static int speed_duplex_to_caps(int speed, int duplex)
604 if (duplex == DUPLEX_FULL)
605 cap = SUPPORTED_10baseT_Full;
607 cap = SUPPORTED_10baseT_Half;
610 if (duplex == DUPLEX_FULL)
611 cap = SUPPORTED_100baseT_Full;
613 cap = SUPPORTED_100baseT_Half;
616 if (duplex == DUPLEX_FULL)
617 cap = SUPPORTED_1000baseT_Full;
619 cap = SUPPORTED_1000baseT_Half;
622 if (duplex == DUPLEX_FULL)
623 cap = SUPPORTED_10000baseT_Full;
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)
633 static int set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
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;
639 if (!(lc->supported & SUPPORTED_Autoneg))
640 return -EOPNOTSUPP; /* can't change speed/duplex */
642 if (cmd->autoneg == AUTONEG_DISABLE) {
643 u32 speed = ethtool_cmd_speed(cmd);
644 int cap = speed_duplex_to_caps(speed, cmd->duplex);
646 if (!(lc->supported & cap) || (speed == SPEED_1000))
648 lc->requested_speed = speed;
649 lc->requested_duplex = cmd->duplex;
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)
658 lc->requested_speed = SPEED_INVALID;
659 lc->requested_duplex = DUPLEX_INVALID;
660 lc->advertising = cmd->advertising | ADVERTISED_Autoneg;
662 lc->autoneg = cmd->autoneg;
663 if (netif_running(dev))
664 t1_link_start(p->phy, p->mac, lc);
668 static void get_pauseparam(struct net_device *dev,
669 struct ethtool_pauseparam *epause)
671 struct adapter *adapter = dev->ml_priv;
672 struct port_info *p = &adapter->port[dev->if_port];
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;
679 static int set_pauseparam(struct net_device *dev,
680 struct ethtool_pauseparam *epause)
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;
686 if (epause->autoneg == AUTONEG_DISABLE)
687 lc->requested_fc = 0;
688 else if (lc->supported & SUPPORTED_Autoneg)
689 lc->requested_fc = PAUSE_AUTONEG;
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);
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,
709 static void get_sge_param(struct net_device *dev, struct ethtool_ringparam *e)
711 struct adapter *adapter = dev->ml_priv;
712 int jumbo_fl = t1_is_T1B(adapter) ? 1 : 0;
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;
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];
723 static int set_sge_param(struct net_device *dev, struct ethtool_ringparam *e)
725 struct adapter *adapter = dev->ml_priv;
726 int jumbo_fl = t1_is_T1B(adapter) ? 1 : 0;
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))
736 if (adapter->flags & FULL_INIT_DONE)
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;
747 static int set_coalesce(struct net_device *dev, struct ethtool_coalesce *c)
749 struct adapter *adapter = dev->ml_priv;
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);
758 static int get_coalesce(struct net_device *dev, struct ethtool_coalesce *c)
760 struct adapter *adapter = dev->ml_priv;
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;
768 static int get_eeprom_len(struct net_device *dev)
770 struct adapter *adapter = dev->ml_priv;
772 return t1_is_asic(adapter) ? EEPROM_SIZE : 0;
775 #define EEPROM_MAGIC(ap) \
776 (PCI_VENDOR_ID_CHELSIO | ((ap)->params.chip_version << 16))
778 static int get_eeprom(struct net_device *dev, struct ethtool_eeprom *e,
782 u8 buf[EEPROM_SIZE] __attribute__((aligned(4)));
783 struct adapter *adapter = dev->ml_priv;
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);
792 static 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,
814 static int t1_ioctl(struct net_device *dev, struct ifreq *req, int cmd)
816 struct adapter *adapter = dev->ml_priv;
817 struct mdio_if_info *mdio = &adapter->port[dev->if_port].phy->mdio;
819 return mdio_mii_ioctl(mdio, if_mii(req), cmd);
822 static int t1_change_mtu(struct net_device *dev, int new_mtu)
825 struct adapter *adapter = dev->ml_priv;
826 struct cmac *mac = adapter->port[dev->if_port].mac;
828 if (!mac->ops->set_mtu)
832 if ((ret = mac->ops->set_mtu(mac, new_mtu)))
838 static int t1_set_mac_addr(struct net_device *dev, void *p)
840 struct adapter *adapter = dev->ml_priv;
841 struct cmac *mac = adapter->port[dev->if_port].mac;
842 struct sockaddr *addr = p;
844 if (!mac->ops->macaddress_set)
847 memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
848 mac->ops->macaddress_set(mac, dev->dev_addr);
852 static netdev_features_t t1_fix_features(struct net_device *dev,
853 netdev_features_t features)
856 * Since there is no support for separate rx/tx vlan accel
857 * enable/disable make sure tx flag is always in same state as rx.
859 if (features & NETIF_F_HW_VLAN_CTAG_RX)
860 features |= NETIF_F_HW_VLAN_CTAG_TX;
862 features &= ~NETIF_F_HW_VLAN_CTAG_TX;
867 static int t1_set_features(struct net_device *dev, netdev_features_t features)
869 netdev_features_t changed = dev->features ^ features;
870 struct adapter *adapter = dev->ml_priv;
872 if (changed & NETIF_F_HW_VLAN_CTAG_RX)
873 t1_vlan_mode(adapter, features);
877 #ifdef CONFIG_NET_POLL_CONTROLLER
878 static void t1_netpoll(struct net_device *dev)
881 struct adapter *adapter = dev->ml_priv;
883 local_irq_save(flags);
884 t1_interrupt(adapter->pdev->irq, adapter);
885 local_irq_restore(flags);
890 * Periodic accumulation of MAC statistics. This is used only if the MAC
891 * does not have any other way to prevent stats counter overflow.
893 static void mac_stats_task(struct work_struct *work)
896 struct adapter *adapter =
897 container_of(work, struct adapter, stats_update_task.work);
899 for_each_port(adapter, i) {
900 struct port_info *p = &adapter->port[i];
902 if (netif_running(p->dev))
903 p->mac->ops->statistics_update(p->mac,
904 MAC_STATS_UPDATE_FAST);
907 /* Schedule the next statistics update if any port is active. */
908 spin_lock(&adapter->work_lock);
909 if (adapter->open_device_map & PORT_MASK)
910 schedule_mac_stats_update(adapter,
911 adapter->params.stats_update_period);
912 spin_unlock(&adapter->work_lock);
916 * Processes elmer0 external interrupts in process context.
918 static void ext_intr_task(struct work_struct *work)
920 struct adapter *adapter =
921 container_of(work, struct adapter, ext_intr_handler_task);
923 t1_elmer0_ext_intr_handler(adapter);
925 /* Now reenable external interrupts */
926 spin_lock_irq(&adapter->async_lock);
927 adapter->slow_intr_mask |= F_PL_INTR_EXT;
928 writel(F_PL_INTR_EXT, adapter->regs + A_PL_CAUSE);
929 writel(adapter->slow_intr_mask | F_PL_INTR_SGE_DATA,
930 adapter->regs + A_PL_ENABLE);
931 spin_unlock_irq(&adapter->async_lock);
935 * Interrupt-context handler for elmer0 external interrupts.
937 void t1_elmer0_ext_intr(struct adapter *adapter)
940 * Schedule a task to handle external interrupts as we require
941 * a process context. We disable EXT interrupts in the interim
942 * and let the task reenable them when it's done.
944 adapter->slow_intr_mask &= ~F_PL_INTR_EXT;
945 writel(adapter->slow_intr_mask | F_PL_INTR_SGE_DATA,
946 adapter->regs + A_PL_ENABLE);
947 schedule_work(&adapter->ext_intr_handler_task);
950 void t1_fatal_err(struct adapter *adapter)
952 if (adapter->flags & FULL_INIT_DONE) {
953 t1_sge_stop(adapter->sge);
954 t1_interrupts_disable(adapter);
956 pr_alert("%s: encountered fatal error, operation suspended\n",
960 static const struct net_device_ops cxgb_netdev_ops = {
961 .ndo_open = cxgb_open,
962 .ndo_stop = cxgb_close,
963 .ndo_start_xmit = t1_start_xmit,
964 .ndo_get_stats = t1_get_stats,
965 .ndo_validate_addr = eth_validate_addr,
966 .ndo_set_rx_mode = t1_set_rxmode,
967 .ndo_do_ioctl = t1_ioctl,
968 .ndo_change_mtu = t1_change_mtu,
969 .ndo_set_mac_address = t1_set_mac_addr,
970 .ndo_fix_features = t1_fix_features,
971 .ndo_set_features = t1_set_features,
972 #ifdef CONFIG_NET_POLL_CONTROLLER
973 .ndo_poll_controller = t1_netpoll,
977 static int init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
979 int i, err, pci_using_dac = 0;
980 unsigned long mmio_start, mmio_len;
981 const struct board_info *bi;
982 struct adapter *adapter = NULL;
983 struct port_info *pi;
985 pr_info_once("%s - version %s\n", DRV_DESCRIPTION, DRV_VERSION);
987 err = pci_enable_device(pdev);
991 if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
992 pr_err("%s: cannot find PCI device memory base address\n",
995 goto out_disable_pdev;
998 if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64))) {
1001 if (pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64))) {
1002 pr_err("%s: unable to obtain 64-bit DMA for "
1003 "consistent allocations\n", pci_name(pdev));
1005 goto out_disable_pdev;
1008 } else if ((err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32))) != 0) {
1009 pr_err("%s: no usable DMA configuration\n", pci_name(pdev));
1010 goto out_disable_pdev;
1013 err = pci_request_regions(pdev, DRV_NAME);
1015 pr_err("%s: cannot obtain PCI resources\n", pci_name(pdev));
1016 goto out_disable_pdev;
1019 pci_set_master(pdev);
1021 mmio_start = pci_resource_start(pdev, 0);
1022 mmio_len = pci_resource_len(pdev, 0);
1023 bi = t1_get_board_info(ent->driver_data);
1025 for (i = 0; i < bi->port_number; ++i) {
1026 struct net_device *netdev;
1028 netdev = alloc_etherdev(adapter ? 0 : sizeof(*adapter));
1034 SET_NETDEV_DEV(netdev, &pdev->dev);
1037 adapter = netdev_priv(netdev);
1038 adapter->pdev = pdev;
1039 adapter->port[0].dev = netdev; /* so we don't leak it */
1041 adapter->regs = ioremap(mmio_start, mmio_len);
1042 if (!adapter->regs) {
1043 pr_err("%s: cannot map device registers\n",
1049 if (t1_get_board_rev(adapter, bi, &adapter->params)) {
1050 err = -ENODEV; /* Can't handle this chip rev */
1054 adapter->name = pci_name(pdev);
1055 adapter->msg_enable = dflt_msg_enable;
1056 adapter->mmio_len = mmio_len;
1058 spin_lock_init(&adapter->tpi_lock);
1059 spin_lock_init(&adapter->work_lock);
1060 spin_lock_init(&adapter->async_lock);
1061 spin_lock_init(&adapter->mac_lock);
1063 INIT_WORK(&adapter->ext_intr_handler_task,
1065 INIT_DELAYED_WORK(&adapter->stats_update_task,
1068 pci_set_drvdata(pdev, netdev);
1071 pi = &adapter->port[i];
1073 netif_carrier_off(netdev);
1074 netdev->irq = pdev->irq;
1075 netdev->if_port = i;
1076 netdev->mem_start = mmio_start;
1077 netdev->mem_end = mmio_start + mmio_len - 1;
1078 netdev->ml_priv = adapter;
1079 netdev->hw_features |= NETIF_F_SG | NETIF_F_IP_CSUM |
1081 netdev->features |= NETIF_F_SG | NETIF_F_IP_CSUM |
1082 NETIF_F_RXCSUM | NETIF_F_LLTX;
1085 netdev->features |= NETIF_F_HIGHDMA;
1086 if (vlan_tso_capable(adapter)) {
1088 NETIF_F_HW_VLAN_CTAG_TX |
1089 NETIF_F_HW_VLAN_CTAG_RX;
1090 netdev->hw_features |= NETIF_F_HW_VLAN_CTAG_RX;
1092 /* T204: disable TSO */
1093 if (!(is_T2(adapter)) || bi->port_number != 4) {
1094 netdev->hw_features |= NETIF_F_TSO;
1095 netdev->features |= NETIF_F_TSO;
1099 netdev->netdev_ops = &cxgb_netdev_ops;
1100 netdev->hard_header_len += (netdev->hw_features & NETIF_F_TSO) ?
1101 sizeof(struct cpl_tx_pkt_lso) : sizeof(struct cpl_tx_pkt);
1103 netif_napi_add(netdev, &adapter->napi, t1_poll, 64);
1105 SET_ETHTOOL_OPS(netdev, &t1_ethtool_ops);
1108 if (t1_init_sw_modules(adapter, bi) < 0) {
1114 * The card is now ready to go. If any errors occur during device
1115 * registration we do not fail the whole card but rather proceed only
1116 * with the ports we manage to register successfully. However we must
1117 * register at least one net device.
1119 for (i = 0; i < bi->port_number; ++i) {
1120 err = register_netdev(adapter->port[i].dev);
1122 pr_warn("%s: cannot register net device %s, skipping\n",
1123 pci_name(pdev), adapter->port[i].dev->name);
1126 * Change the name we use for messages to the name of
1127 * the first successfully registered interface.
1129 if (!adapter->registered_device_map)
1130 adapter->name = adapter->port[i].dev->name;
1132 __set_bit(i, &adapter->registered_device_map);
1135 if (!adapter->registered_device_map) {
1136 pr_err("%s: could not register any net devices\n",
1138 goto out_release_adapter_res;
1141 pr_info("%s: %s (rev %d), %s %dMHz/%d-bit\n",
1142 adapter->name, bi->desc, adapter->params.chip_revision,
1143 adapter->params.pci.is_pcix ? "PCIX" : "PCI",
1144 adapter->params.pci.speed, adapter->params.pci.width);
1147 * Set the T1B ASIC and memory clocks.
1150 adapter->t1powersave = LCLOCK; /* HW default is powersave mode. */
1152 adapter->t1powersave = HCLOCK;
1153 if (t1_is_T1B(adapter))
1154 t1_clock(adapter, t1powersave);
1158 out_release_adapter_res:
1159 t1_free_sw_modules(adapter);
1163 iounmap(adapter->regs);
1164 for (i = bi->port_number - 1; i >= 0; --i)
1165 if (adapter->port[i].dev)
1166 free_netdev(adapter->port[i].dev);
1168 pci_release_regions(pdev);
1170 pci_disable_device(pdev);
1171 pci_set_drvdata(pdev, NULL);
1175 static void bit_bang(struct adapter *adapter, int bitdata, int nbits)
1186 for (i = (nbits - 1); i > -1; i--) {
1190 data = ((bitdata >> i) & 0x1);
1191 __t1_tpi_read(adapter, A_ELMER0_GPO, &val);
1200 /* Set SCLOCK low */
1202 __t1_tpi_write(adapter, A_ELMER0_GPO, val);
1206 /* Write SCLOCK high */
1208 __t1_tpi_write(adapter, A_ELMER0_GPO, val);
1213 static int t1_clock(struct adapter *adapter, int mode)
1231 S_LOAD_MEM = 1 << 5,
1232 S_LOAD_CORE = 1 << 6,
1236 if (!t1_is_T1B(adapter))
1237 return -ENODEV; /* Can't re-clock this chip. */
1240 return 0; /* show current mode. */
1242 if ((adapter->t1powersave & 1) == (mode & 1))
1243 return -EALREADY; /* ASIC already running in mode. */
1245 if ((mode & 1) == HCLOCK) {
1248 adapter->t1powersave = HCLOCK; /* overclock */
1252 adapter->t1powersave = LCLOCK; /* underclock */
1255 /* Don't interrupt this serial stream! */
1256 spin_lock(&adapter->tpi_lock);
1258 /* Initialize for ASIC core */
1259 __t1_tpi_read(adapter, A_ELMER0_GPO, &val);
1262 __t1_tpi_write(adapter, A_ELMER0_GPO, val);
1264 __t1_tpi_read(adapter, A_ELMER0_GPO, &val);
1265 val &= ~S_LOAD_CORE;
1267 __t1_tpi_write(adapter, A_ELMER0_GPO, val);
1270 /* Serial program the ASIC clock synthesizer */
1271 bit_bang(adapter, T_CORE_VAL, T_CORE_BITS);
1272 bit_bang(adapter, N_CORE_VAL, N_CORE_BITS);
1273 bit_bang(adapter, M_CORE_VAL, M_CORE_BITS);
1276 /* Finish ASIC core */
1277 __t1_tpi_read(adapter, A_ELMER0_GPO, &val);
1280 __t1_tpi_write(adapter, A_ELMER0_GPO, val);
1282 __t1_tpi_read(adapter, A_ELMER0_GPO, &val);
1283 val &= ~S_LOAD_CORE;
1285 __t1_tpi_write(adapter, A_ELMER0_GPO, val);
1288 /* Initialize for memory */
1289 __t1_tpi_read(adapter, A_ELMER0_GPO, &val);
1292 __t1_tpi_write(adapter, A_ELMER0_GPO, val);
1294 __t1_tpi_read(adapter, A_ELMER0_GPO, &val);
1298 __t1_tpi_write(adapter, A_ELMER0_GPO, val);
1301 /* Serial program the memory clock synthesizer */
1302 bit_bang(adapter, T_MEM_VAL, T_MEM_BITS);
1303 bit_bang(adapter, N_MEM_VAL, N_MEM_BITS);
1304 bit_bang(adapter, M_MEM_VAL, M_MEM_BITS);
1308 __t1_tpi_read(adapter, A_ELMER0_GPO, &val);
1311 __t1_tpi_write(adapter, A_ELMER0_GPO, val);
1313 __t1_tpi_read(adapter, A_ELMER0_GPO, &val);
1316 __t1_tpi_write(adapter, A_ELMER0_GPO, val);
1318 spin_unlock(&adapter->tpi_lock);
1323 static inline void t1_sw_reset(struct pci_dev *pdev)
1325 pci_write_config_dword(pdev, A_PCICFG_PM_CSR, 3);
1326 pci_write_config_dword(pdev, A_PCICFG_PM_CSR, 0);
1329 static void remove_one(struct pci_dev *pdev)
1331 struct net_device *dev = pci_get_drvdata(pdev);
1332 struct adapter *adapter = dev->ml_priv;
1335 for_each_port(adapter, i) {
1336 if (test_bit(i, &adapter->registered_device_map))
1337 unregister_netdev(adapter->port[i].dev);
1340 t1_free_sw_modules(adapter);
1341 iounmap(adapter->regs);
1344 if (adapter->port[i].dev)
1345 free_netdev(adapter->port[i].dev);
1348 pci_release_regions(pdev);
1349 pci_disable_device(pdev);
1350 pci_set_drvdata(pdev, NULL);
1354 static struct pci_driver driver = {
1356 .id_table = t1_pci_tbl,
1358 .remove = remove_one,
1361 static int __init t1_init_module(void)
1363 return pci_register_driver(&driver);
1366 static void __exit t1_cleanup_module(void)
1368 pci_unregister_driver(&driver);
1371 module_init(t1_init_module);
1372 module_exit(t1_cleanup_module);