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
->priv
;
124 struct cmac
*mac
= adapter
->port
[dev
->if_port
].mac
;
125 struct t1_rx_mode rm
;
129 rm
.list
= dev
->mc_list
;
130 mac
->ops
->set_rx_mode(mac
, &rm
);
133 static void link_report(struct port_info
*p
)
135 if (!netif_carrier_ok(p
->dev
))
136 printk(KERN_INFO
"%s: link down\n", p
->dev
->name
);
138 const char *s
= "10Mbps";
140 switch (p
->link_config
.speed
) {
141 case SPEED_10000
: s
= "10Gbps"; break;
142 case SPEED_1000
: s
= "1000Mbps"; break;
143 case SPEED_100
: s
= "100Mbps"; break;
146 printk(KERN_INFO
"%s: link up, %s, %s-duplex\n",
148 p
->link_config
.duplex
== DUPLEX_FULL
? "full" : "half");
152 void t1_link_negotiated(struct adapter
*adapter
, int port_id
, int link_stat
,
153 int speed
, int duplex
, int pause
)
155 struct port_info
*p
= &adapter
->port
[port_id
];
157 if (link_stat
!= netif_carrier_ok(p
->dev
)) {
159 netif_carrier_on(p
->dev
);
161 netif_carrier_off(p
->dev
);
164 /* multi-ports: inform toe */
165 if ((speed
> 0) && (adapter
->params
.nports
> 1)) {
166 unsigned int sched_speed
= 10;
178 t1_sched_update_parms(adapter
->sge
, port_id
, 0, sched_speed
);
183 static void link_start(struct port_info
*p
)
185 struct cmac
*mac
= p
->mac
;
187 mac
->ops
->reset(mac
);
188 if (mac
->ops
->macaddress_set
)
189 mac
->ops
->macaddress_set(mac
, p
->dev
->dev_addr
);
190 t1_set_rxmode(p
->dev
);
191 t1_link_start(p
->phy
, mac
, &p
->link_config
);
192 mac
->ops
->enable(mac
, MAC_DIRECTION_RX
| MAC_DIRECTION_TX
);
195 static void enable_hw_csum(struct adapter
*adapter
)
197 if (adapter
->flags
& TSO_CAPABLE
)
198 t1_tp_set_ip_checksum_offload(adapter
->tp
, 1); /* for TSO only */
199 if (adapter
->flags
& UDP_CSUM_CAPABLE
)
200 t1_tp_set_udp_checksum_offload(adapter
->tp
, 1);
201 t1_tp_set_tcp_checksum_offload(adapter
->tp
, 1);
205 * Things to do upon first use of a card.
206 * This must run with the rtnl lock held.
208 static int cxgb_up(struct adapter
*adapter
)
212 if (!(adapter
->flags
& FULL_INIT_DONE
)) {
213 err
= t1_init_hw_modules(adapter
);
217 enable_hw_csum(adapter
);
218 adapter
->flags
|= FULL_INIT_DONE
;
221 t1_interrupts_clear(adapter
);
223 adapter
->params
.has_msi
= !disable_msi
&& !pci_enable_msi(adapter
->pdev
);
224 err
= request_irq(adapter
->pdev
->irq
, t1_interrupt
,
225 adapter
->params
.has_msi
? 0 : IRQF_SHARED
,
226 adapter
->name
, adapter
);
228 if (adapter
->params
.has_msi
)
229 pci_disable_msi(adapter
->pdev
);
234 t1_sge_start(adapter
->sge
);
235 t1_interrupts_enable(adapter
);
241 * Release resources when all the ports have been stopped.
243 static void cxgb_down(struct adapter
*adapter
)
245 t1_sge_stop(adapter
->sge
);
246 t1_interrupts_disable(adapter
);
247 free_irq(adapter
->pdev
->irq
, adapter
);
248 if (adapter
->params
.has_msi
)
249 pci_disable_msi(adapter
->pdev
);
252 static int cxgb_open(struct net_device
*dev
)
255 struct adapter
*adapter
= dev
->priv
;
256 int other_ports
= adapter
->open_device_map
& PORT_MASK
;
258 if (!adapter
->open_device_map
&& (err
= cxgb_up(adapter
)) < 0)
261 __set_bit(dev
->if_port
, &adapter
->open_device_map
);
262 link_start(&adapter
->port
[dev
->if_port
]);
263 netif_start_queue(dev
);
264 if (!other_ports
&& adapter
->params
.stats_update_period
)
265 schedule_mac_stats_update(adapter
,
266 adapter
->params
.stats_update_period
);
270 static int cxgb_close(struct net_device
*dev
)
272 struct adapter
*adapter
= dev
->priv
;
273 struct port_info
*p
= &adapter
->port
[dev
->if_port
];
274 struct cmac
*mac
= p
->mac
;
276 netif_stop_queue(dev
);
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_clear_bit();
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
->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
->priv
;
347 return adapter
->msg_enable
;
350 static void set_msglevel(struct net_device
*dev
, u32 val
)
352 struct adapter
*adapter
= dev
->priv
;
354 adapter
->msg_enable
= val
;
357 static char stats_strings
[][ETH_GSTRING_LEN
] = {
361 "TxMulticastFramesOK",
362 "TxBroadcastFramesOK",
364 "TxFramesWithDeferredXmissions",
367 "TxFramesAbortedDueToXSCollisions",
370 "TxInternalMACXmitError",
371 "TxFramesWithExcessiveDeferral",
377 "RxMulticastFramesOK",
378 "RxBroadcastFramesOK",
387 "RxInternalMACRcvError",
388 "RxInRangeLengthErrors",
389 "RxOutOfRangeLengthField",
390 "RxFrameTooLongErrors",
401 /* Interrupt stats */
413 "espi_DIP2ParityErr",
421 #define T2_REGMAP_SIZE (3 * 1024)
423 static int get_regs_len(struct net_device
*dev
)
425 return T2_REGMAP_SIZE
;
428 static void get_drvinfo(struct net_device
*dev
, struct ethtool_drvinfo
*info
)
430 struct adapter
*adapter
= dev
->priv
;
432 strcpy(info
->driver
, DRV_NAME
);
433 strcpy(info
->version
, DRV_VERSION
);
434 strcpy(info
->fw_version
, "N/A");
435 strcpy(info
->bus_info
, pci_name(adapter
->pdev
));
438 static int get_stats_count(struct net_device
*dev
)
440 return ARRAY_SIZE(stats_strings
);
443 static void get_strings(struct net_device
*dev
, u32 stringset
, u8
*data
)
445 if (stringset
== ETH_SS_STATS
)
446 memcpy(data
, stats_strings
, sizeof(stats_strings
));
449 static void get_stats(struct net_device
*dev
, struct ethtool_stats
*stats
,
452 struct adapter
*adapter
= dev
->priv
;
453 struct cmac
*mac
= adapter
->port
[dev
->if_port
].mac
;
454 const struct cmac_statistics
*s
;
455 const struct sge_intr_counts
*t
;
456 struct sge_port_stats ss
;
458 s
= mac
->ops
->statistics_update(mac
, MAC_STATS_UPDATE_FULL
);
460 *data
++ = s
->TxOctetsOK
;
461 *data
++ = s
->TxOctetsBad
;
462 *data
++ = s
->TxUnicastFramesOK
;
463 *data
++ = s
->TxMulticastFramesOK
;
464 *data
++ = s
->TxBroadcastFramesOK
;
465 *data
++ = s
->TxPauseFrames
;
466 *data
++ = s
->TxFramesWithDeferredXmissions
;
467 *data
++ = s
->TxLateCollisions
;
468 *data
++ = s
->TxTotalCollisions
;
469 *data
++ = s
->TxFramesAbortedDueToXSCollisions
;
470 *data
++ = s
->TxUnderrun
;
471 *data
++ = s
->TxLengthErrors
;
472 *data
++ = s
->TxInternalMACXmitError
;
473 *data
++ = s
->TxFramesWithExcessiveDeferral
;
474 *data
++ = s
->TxFCSErrors
;
476 *data
++ = s
->RxOctetsOK
;
477 *data
++ = s
->RxOctetsBad
;
478 *data
++ = s
->RxUnicastFramesOK
;
479 *data
++ = s
->RxMulticastFramesOK
;
480 *data
++ = s
->RxBroadcastFramesOK
;
481 *data
++ = s
->RxPauseFrames
;
482 *data
++ = s
->RxFCSErrors
;
483 *data
++ = s
->RxAlignErrors
;
484 *data
++ = s
->RxSymbolErrors
;
485 *data
++ = s
->RxDataErrors
;
486 *data
++ = s
->RxSequenceErrors
;
487 *data
++ = s
->RxRuntErrors
;
488 *data
++ = s
->RxJabberErrors
;
489 *data
++ = s
->RxInternalMACRcvError
;
490 *data
++ = s
->RxInRangeLengthErrors
;
491 *data
++ = s
->RxOutOfRangeLengthField
;
492 *data
++ = s
->RxFrameTooLongErrors
;
494 t1_sge_get_port_stats(adapter
->sge
, dev
->if_port
, &ss
);
495 *data
++ = ss
.rx_packets
;
496 *data
++ = ss
.rx_cso_good
;
497 *data
++ = ss
.tx_packets
;
500 *data
++ = ss
.vlan_xtract
;
501 *data
++ = ss
.vlan_insert
;
503 t
= t1_sge_get_intr_counts(adapter
->sge
);
504 *data
++ = t
->rx_drops
;
505 *data
++ = t
->pure_rsps
;
506 *data
++ = t
->unhandled_irqs
;
507 *data
++ = t
->respQ_empty
;
508 *data
++ = t
->respQ_overflow
;
509 *data
++ = t
->freelistQ_empty
;
510 *data
++ = t
->pkt_too_big
;
511 *data
++ = t
->pkt_mismatch
;
512 *data
++ = t
->cmdQ_full
[0];
513 *data
++ = t
->cmdQ_full
[1];
516 const struct espi_intr_counts
*e
;
518 e
= t1_espi_get_intr_counts(adapter
->espi
);
519 *data
++ = e
->DIP2_parity_err
;
520 *data
++ = e
->DIP4_err
;
521 *data
++ = e
->rx_drops
;
522 *data
++ = e
->tx_drops
;
523 *data
++ = e
->rx_ovflw
;
524 *data
++ = e
->parity_err
;
528 static inline void reg_block_dump(struct adapter
*ap
, void *buf
,
529 unsigned int start
, unsigned int end
)
531 u32
*p
= buf
+ start
;
533 for ( ; start
<= end
; start
+= sizeof(u32
))
534 *p
++ = readl(ap
->regs
+ start
);
537 static void get_regs(struct net_device
*dev
, struct ethtool_regs
*regs
,
540 struct adapter
*ap
= dev
->priv
;
543 * Version scheme: bits 0..9: chip version, bits 10..15: chip revision
547 memset(buf
, 0, T2_REGMAP_SIZE
);
548 reg_block_dump(ap
, buf
, 0, A_SG_RESPACCUTIMER
);
549 reg_block_dump(ap
, buf
, A_MC3_CFG
, A_MC4_INT_CAUSE
);
550 reg_block_dump(ap
, buf
, A_TPI_ADDR
, A_TPI_PAR
);
551 reg_block_dump(ap
, buf
, A_TP_IN_CONFIG
, A_TP_TX_DROP_COUNT
);
552 reg_block_dump(ap
, buf
, A_RAT_ROUTE_CONTROL
, A_RAT_INTR_CAUSE
);
553 reg_block_dump(ap
, buf
, A_CSPI_RX_AE_WM
, A_CSPI_INTR_ENABLE
);
554 reg_block_dump(ap
, buf
, A_ESPI_SCH_TOKEN0
, A_ESPI_GOSTAT
);
555 reg_block_dump(ap
, buf
, A_ULP_ULIMIT
, A_ULP_PIO_CTRL
);
556 reg_block_dump(ap
, buf
, A_PL_ENABLE
, A_PL_CAUSE
);
557 reg_block_dump(ap
, buf
, A_MC5_CONFIG
, A_MC5_MASK_WRITE_CMD
);
560 static int get_settings(struct net_device
*dev
, struct ethtool_cmd
*cmd
)
562 struct adapter
*adapter
= dev
->priv
;
563 struct port_info
*p
= &adapter
->port
[dev
->if_port
];
565 cmd
->supported
= p
->link_config
.supported
;
566 cmd
->advertising
= p
->link_config
.advertising
;
568 if (netif_carrier_ok(dev
)) {
569 cmd
->speed
= p
->link_config
.speed
;
570 cmd
->duplex
= p
->link_config
.duplex
;
576 cmd
->port
= (cmd
->supported
& SUPPORTED_TP
) ? PORT_TP
: PORT_FIBRE
;
577 cmd
->phy_address
= p
->phy
->addr
;
578 cmd
->transceiver
= XCVR_EXTERNAL
;
579 cmd
->autoneg
= p
->link_config
.autoneg
;
585 static int speed_duplex_to_caps(int speed
, int duplex
)
591 if (duplex
== DUPLEX_FULL
)
592 cap
= SUPPORTED_10baseT_Full
;
594 cap
= SUPPORTED_10baseT_Half
;
597 if (duplex
== DUPLEX_FULL
)
598 cap
= SUPPORTED_100baseT_Full
;
600 cap
= SUPPORTED_100baseT_Half
;
603 if (duplex
== DUPLEX_FULL
)
604 cap
= SUPPORTED_1000baseT_Full
;
606 cap
= SUPPORTED_1000baseT_Half
;
609 if (duplex
== DUPLEX_FULL
)
610 cap
= SUPPORTED_10000baseT_Full
;
615 #define ADVERTISED_MASK (ADVERTISED_10baseT_Half | ADVERTISED_10baseT_Full | \
616 ADVERTISED_100baseT_Half | ADVERTISED_100baseT_Full | \
617 ADVERTISED_1000baseT_Half | ADVERTISED_1000baseT_Full | \
618 ADVERTISED_10000baseT_Full)
620 static int set_settings(struct net_device
*dev
, struct ethtool_cmd
*cmd
)
622 struct adapter
*adapter
= dev
->priv
;
623 struct port_info
*p
= &adapter
->port
[dev
->if_port
];
624 struct link_config
*lc
= &p
->link_config
;
626 if (!(lc
->supported
& SUPPORTED_Autoneg
))
627 return -EOPNOTSUPP
; /* can't change speed/duplex */
629 if (cmd
->autoneg
== AUTONEG_DISABLE
) {
630 int cap
= speed_duplex_to_caps(cmd
->speed
, cmd
->duplex
);
632 if (!(lc
->supported
& cap
) || cmd
->speed
== SPEED_1000
)
634 lc
->requested_speed
= cmd
->speed
;
635 lc
->requested_duplex
= cmd
->duplex
;
638 cmd
->advertising
&= ADVERTISED_MASK
;
639 if (cmd
->advertising
& (cmd
->advertising
- 1))
640 cmd
->advertising
= lc
->supported
;
641 cmd
->advertising
&= lc
->supported
;
642 if (!cmd
->advertising
)
644 lc
->requested_speed
= SPEED_INVALID
;
645 lc
->requested_duplex
= DUPLEX_INVALID
;
646 lc
->advertising
= cmd
->advertising
| ADVERTISED_Autoneg
;
648 lc
->autoneg
= cmd
->autoneg
;
649 if (netif_running(dev
))
650 t1_link_start(p
->phy
, p
->mac
, lc
);
654 static void get_pauseparam(struct net_device
*dev
,
655 struct ethtool_pauseparam
*epause
)
657 struct adapter
*adapter
= dev
->priv
;
658 struct port_info
*p
= &adapter
->port
[dev
->if_port
];
660 epause
->autoneg
= (p
->link_config
.requested_fc
& PAUSE_AUTONEG
) != 0;
661 epause
->rx_pause
= (p
->link_config
.fc
& PAUSE_RX
) != 0;
662 epause
->tx_pause
= (p
->link_config
.fc
& PAUSE_TX
) != 0;
665 static int set_pauseparam(struct net_device
*dev
,
666 struct ethtool_pauseparam
*epause
)
668 struct adapter
*adapter
= dev
->priv
;
669 struct port_info
*p
= &adapter
->port
[dev
->if_port
];
670 struct link_config
*lc
= &p
->link_config
;
672 if (epause
->autoneg
== AUTONEG_DISABLE
)
673 lc
->requested_fc
= 0;
674 else if (lc
->supported
& SUPPORTED_Autoneg
)
675 lc
->requested_fc
= PAUSE_AUTONEG
;
679 if (epause
->rx_pause
)
680 lc
->requested_fc
|= PAUSE_RX
;
681 if (epause
->tx_pause
)
682 lc
->requested_fc
|= PAUSE_TX
;
683 if (lc
->autoneg
== AUTONEG_ENABLE
) {
684 if (netif_running(dev
))
685 t1_link_start(p
->phy
, p
->mac
, lc
);
687 lc
->fc
= lc
->requested_fc
& (PAUSE_RX
| PAUSE_TX
);
688 if (netif_running(dev
))
689 p
->mac
->ops
->set_speed_duplex_fc(p
->mac
, -1, -1,
695 static u32
get_rx_csum(struct net_device
*dev
)
697 struct adapter
*adapter
= dev
->priv
;
699 return (adapter
->flags
& RX_CSUM_ENABLED
) != 0;
702 static int set_rx_csum(struct net_device
*dev
, u32 data
)
704 struct adapter
*adapter
= dev
->priv
;
707 adapter
->flags
|= RX_CSUM_ENABLED
;
709 adapter
->flags
&= ~RX_CSUM_ENABLED
;
713 static int set_tso(struct net_device
*dev
, u32 value
)
715 struct adapter
*adapter
= dev
->priv
;
717 if (!(adapter
->flags
& TSO_CAPABLE
))
718 return value
? -EOPNOTSUPP
: 0;
719 return ethtool_op_set_tso(dev
, value
);
722 static void get_sge_param(struct net_device
*dev
, struct ethtool_ringparam
*e
)
724 struct adapter
*adapter
= dev
->priv
;
725 int jumbo_fl
= t1_is_T1B(adapter
) ? 1 : 0;
727 e
->rx_max_pending
= MAX_RX_BUFFERS
;
728 e
->rx_mini_max_pending
= 0;
729 e
->rx_jumbo_max_pending
= MAX_RX_JUMBO_BUFFERS
;
730 e
->tx_max_pending
= MAX_CMDQ_ENTRIES
;
732 e
->rx_pending
= adapter
->params
.sge
.freelQ_size
[!jumbo_fl
];
733 e
->rx_mini_pending
= 0;
734 e
->rx_jumbo_pending
= adapter
->params
.sge
.freelQ_size
[jumbo_fl
];
735 e
->tx_pending
= adapter
->params
.sge
.cmdQ_size
[0];
738 static int set_sge_param(struct net_device
*dev
, struct ethtool_ringparam
*e
)
740 struct adapter
*adapter
= dev
->priv
;
741 int jumbo_fl
= t1_is_T1B(adapter
) ? 1 : 0;
743 if (e
->rx_pending
> MAX_RX_BUFFERS
|| e
->rx_mini_pending
||
744 e
->rx_jumbo_pending
> MAX_RX_JUMBO_BUFFERS
||
745 e
->tx_pending
> MAX_CMDQ_ENTRIES
||
746 e
->rx_pending
< MIN_FL_ENTRIES
||
747 e
->rx_jumbo_pending
< MIN_FL_ENTRIES
||
748 e
->tx_pending
< (adapter
->params
.nports
+ 1) * (MAX_SKB_FRAGS
+ 1))
751 if (adapter
->flags
& FULL_INIT_DONE
)
754 adapter
->params
.sge
.freelQ_size
[!jumbo_fl
] = e
->rx_pending
;
755 adapter
->params
.sge
.freelQ_size
[jumbo_fl
] = e
->rx_jumbo_pending
;
756 adapter
->params
.sge
.cmdQ_size
[0] = e
->tx_pending
;
757 adapter
->params
.sge
.cmdQ_size
[1] = e
->tx_pending
> MAX_CMDQ1_ENTRIES
?
758 MAX_CMDQ1_ENTRIES
: e
->tx_pending
;
762 static int set_coalesce(struct net_device
*dev
, struct ethtool_coalesce
*c
)
764 struct adapter
*adapter
= dev
->priv
;
766 adapter
->params
.sge
.rx_coalesce_usecs
= c
->rx_coalesce_usecs
;
767 adapter
->params
.sge
.coalesce_enable
= c
->use_adaptive_rx_coalesce
;
768 adapter
->params
.sge
.sample_interval_usecs
= c
->rate_sample_interval
;
769 t1_sge_set_coalesce_params(adapter
->sge
, &adapter
->params
.sge
);
773 static int get_coalesce(struct net_device
*dev
, struct ethtool_coalesce
*c
)
775 struct adapter
*adapter
= dev
->priv
;
777 c
->rx_coalesce_usecs
= adapter
->params
.sge
.rx_coalesce_usecs
;
778 c
->rate_sample_interval
= adapter
->params
.sge
.sample_interval_usecs
;
779 c
->use_adaptive_rx_coalesce
= adapter
->params
.sge
.coalesce_enable
;
783 static int get_eeprom_len(struct net_device
*dev
)
785 struct adapter
*adapter
= dev
->priv
;
787 return t1_is_asic(adapter
) ? EEPROM_SIZE
: 0;
790 #define EEPROM_MAGIC(ap) \
791 (PCI_VENDOR_ID_CHELSIO | ((ap)->params.chip_version << 16))
793 static int get_eeprom(struct net_device
*dev
, struct ethtool_eeprom
*e
,
797 u8 buf
[EEPROM_SIZE
] __attribute__((aligned(4)));
798 struct adapter
*adapter
= dev
->priv
;
800 e
->magic
= EEPROM_MAGIC(adapter
);
801 for (i
= e
->offset
& ~3; i
< e
->offset
+ e
->len
; i
+= sizeof(u32
))
802 t1_seeprom_read(adapter
, i
, (u32
*)&buf
[i
]);
803 memcpy(data
, buf
+ e
->offset
, e
->len
);
807 static const struct ethtool_ops t1_ethtool_ops
= {
808 .get_settings
= get_settings
,
809 .set_settings
= set_settings
,
810 .get_drvinfo
= get_drvinfo
,
811 .get_msglevel
= get_msglevel
,
812 .set_msglevel
= set_msglevel
,
813 .get_ringparam
= get_sge_param
,
814 .set_ringparam
= set_sge_param
,
815 .get_coalesce
= get_coalesce
,
816 .set_coalesce
= set_coalesce
,
817 .get_eeprom_len
= get_eeprom_len
,
818 .get_eeprom
= get_eeprom
,
819 .get_pauseparam
= get_pauseparam
,
820 .set_pauseparam
= set_pauseparam
,
821 .get_rx_csum
= get_rx_csum
,
822 .set_rx_csum
= set_rx_csum
,
823 .get_tx_csum
= ethtool_op_get_tx_csum
,
824 .set_tx_csum
= ethtool_op_set_tx_csum
,
825 .get_sg
= ethtool_op_get_sg
,
826 .set_sg
= ethtool_op_set_sg
,
827 .get_link
= ethtool_op_get_link
,
828 .get_strings
= get_strings
,
829 .get_stats_count
= get_stats_count
,
830 .get_ethtool_stats
= get_stats
,
831 .get_regs_len
= get_regs_len
,
832 .get_regs
= get_regs
,
833 .get_tso
= ethtool_op_get_tso
,
837 static int t1_ioctl(struct net_device
*dev
, struct ifreq
*req
, int cmd
)
839 struct adapter
*adapter
= dev
->priv
;
840 struct mii_ioctl_data
*data
= if_mii(req
);
844 data
->phy_id
= adapter
->port
[dev
->if_port
].phy
->addr
;
847 struct cphy
*phy
= adapter
->port
[dev
->if_port
].phy
;
852 phy
->mdio_read(adapter
, data
->phy_id
, 0, data
->reg_num
& 0x1f,
858 struct cphy
*phy
= adapter
->port
[dev
->if_port
].phy
;
860 if (!capable(CAP_NET_ADMIN
))
862 if (!phy
->mdio_write
)
864 phy
->mdio_write(adapter
, data
->phy_id
, 0, data
->reg_num
& 0x1f,
875 static int t1_change_mtu(struct net_device
*dev
, int new_mtu
)
878 struct adapter
*adapter
= dev
->priv
;
879 struct cmac
*mac
= adapter
->port
[dev
->if_port
].mac
;
881 if (!mac
->ops
->set_mtu
)
885 if ((ret
= mac
->ops
->set_mtu(mac
, new_mtu
)))
891 static int t1_set_mac_addr(struct net_device
*dev
, void *p
)
893 struct adapter
*adapter
= dev
->priv
;
894 struct cmac
*mac
= adapter
->port
[dev
->if_port
].mac
;
895 struct sockaddr
*addr
= p
;
897 if (!mac
->ops
->macaddress_set
)
900 memcpy(dev
->dev_addr
, addr
->sa_data
, dev
->addr_len
);
901 mac
->ops
->macaddress_set(mac
, dev
->dev_addr
);
905 #if defined(CONFIG_VLAN_8021Q) || defined(CONFIG_VLAN_8021Q_MODULE)
906 static void vlan_rx_register(struct net_device
*dev
,
907 struct vlan_group
*grp
)
909 struct adapter
*adapter
= dev
->priv
;
911 spin_lock_irq(&adapter
->async_lock
);
912 adapter
->vlan_grp
= grp
;
913 t1_set_vlan_accel(adapter
, grp
!= NULL
);
914 spin_unlock_irq(&adapter
->async_lock
);
917 static void vlan_rx_kill_vid(struct net_device
*dev
, unsigned short vid
)
919 struct adapter
*adapter
= dev
->priv
;
921 spin_lock_irq(&adapter
->async_lock
);
922 if (adapter
->vlan_grp
)
923 adapter
->vlan_grp
->vlan_devices
[vid
] = NULL
;
924 spin_unlock_irq(&adapter
->async_lock
);
928 #ifdef CONFIG_NET_POLL_CONTROLLER
929 static void t1_netpoll(struct net_device
*dev
)
932 struct adapter
*adapter
= dev
->priv
;
934 local_irq_save(flags
);
935 t1_interrupt(adapter
->pdev
->irq
, adapter
);
936 local_irq_restore(flags
);
941 * Periodic accumulation of MAC statistics. This is used only if the MAC
942 * does not have any other way to prevent stats counter overflow.
944 static void mac_stats_task(struct work_struct
*work
)
947 struct adapter
*adapter
=
948 container_of(work
, struct adapter
, stats_update_task
.work
);
950 for_each_port(adapter
, i
) {
951 struct port_info
*p
= &adapter
->port
[i
];
953 if (netif_running(p
->dev
))
954 p
->mac
->ops
->statistics_update(p
->mac
,
955 MAC_STATS_UPDATE_FAST
);
958 /* Schedule the next statistics update if any port is active. */
959 spin_lock(&adapter
->work_lock
);
960 if (adapter
->open_device_map
& PORT_MASK
)
961 schedule_mac_stats_update(adapter
,
962 adapter
->params
.stats_update_period
);
963 spin_unlock(&adapter
->work_lock
);
967 * Processes elmer0 external interrupts in process context.
969 static void ext_intr_task(struct work_struct
*work
)
971 struct adapter
*adapter
=
972 container_of(work
, struct adapter
, ext_intr_handler_task
);
974 t1_elmer0_ext_intr_handler(adapter
);
976 /* Now reenable external interrupts */
977 spin_lock_irq(&adapter
->async_lock
);
978 adapter
->slow_intr_mask
|= F_PL_INTR_EXT
;
979 writel(F_PL_INTR_EXT
, adapter
->regs
+ A_PL_CAUSE
);
980 writel(adapter
->slow_intr_mask
| F_PL_INTR_SGE_DATA
,
981 adapter
->regs
+ A_PL_ENABLE
);
982 spin_unlock_irq(&adapter
->async_lock
);
986 * Interrupt-context handler for elmer0 external interrupts.
988 void t1_elmer0_ext_intr(struct adapter
*adapter
)
991 * Schedule a task to handle external interrupts as we require
992 * a process context. We disable EXT interrupts in the interim
993 * and let the task reenable them when it's done.
995 adapter
->slow_intr_mask
&= ~F_PL_INTR_EXT
;
996 writel(adapter
->slow_intr_mask
| F_PL_INTR_SGE_DATA
,
997 adapter
->regs
+ A_PL_ENABLE
);
998 schedule_work(&adapter
->ext_intr_handler_task
);
1001 void t1_fatal_err(struct adapter
*adapter
)
1003 if (adapter
->flags
& FULL_INIT_DONE
) {
1004 t1_sge_stop(adapter
->sge
);
1005 t1_interrupts_disable(adapter
);
1007 CH_ALERT("%s: encountered fatal error, operation suspended\n",
1011 static int __devinit
init_one(struct pci_dev
*pdev
,
1012 const struct pci_device_id
*ent
)
1014 static int version_printed
;
1016 int i
, err
, pci_using_dac
= 0;
1017 unsigned long mmio_start
, mmio_len
;
1018 const struct board_info
*bi
;
1019 struct adapter
*adapter
= NULL
;
1020 struct port_info
*pi
;
1022 if (!version_printed
) {
1023 printk(KERN_INFO
"%s - version %s\n", DRV_DESCRIPTION
,
1028 err
= pci_enable_device(pdev
);
1032 if (!(pci_resource_flags(pdev
, 0) & IORESOURCE_MEM
)) {
1033 CH_ERR("%s: cannot find PCI device memory base address\n",
1036 goto out_disable_pdev
;
1039 if (!pci_set_dma_mask(pdev
, DMA_64BIT_MASK
)) {
1042 if (pci_set_consistent_dma_mask(pdev
, DMA_64BIT_MASK
)) {
1043 CH_ERR("%s: unable to obtain 64-bit DMA for"
1044 "consistent allocations\n", pci_name(pdev
));
1046 goto out_disable_pdev
;
1049 } else if ((err
= pci_set_dma_mask(pdev
, DMA_32BIT_MASK
)) != 0) {
1050 CH_ERR("%s: no usable DMA configuration\n", pci_name(pdev
));
1051 goto out_disable_pdev
;
1054 err
= pci_request_regions(pdev
, DRV_NAME
);
1056 CH_ERR("%s: cannot obtain PCI resources\n", pci_name(pdev
));
1057 goto out_disable_pdev
;
1060 pci_set_master(pdev
);
1062 mmio_start
= pci_resource_start(pdev
, 0);
1063 mmio_len
= pci_resource_len(pdev
, 0);
1064 bi
= t1_get_board_info(ent
->driver_data
);
1066 for (i
= 0; i
< bi
->port_number
; ++i
) {
1067 struct net_device
*netdev
;
1069 netdev
= alloc_etherdev(adapter
? 0 : sizeof(*adapter
));
1075 SET_MODULE_OWNER(netdev
);
1076 SET_NETDEV_DEV(netdev
, &pdev
->dev
);
1079 adapter
= netdev
->priv
;
1080 adapter
->pdev
= pdev
;
1081 adapter
->port
[0].dev
= netdev
; /* so we don't leak it */
1083 adapter
->regs
= ioremap(mmio_start
, mmio_len
);
1084 if (!adapter
->regs
) {
1085 CH_ERR("%s: cannot map device registers\n",
1091 if (t1_get_board_rev(adapter
, bi
, &adapter
->params
)) {
1092 err
= -ENODEV
; /* Can't handle this chip rev */
1096 adapter
->name
= pci_name(pdev
);
1097 adapter
->msg_enable
= dflt_msg_enable
;
1098 adapter
->mmio_len
= mmio_len
;
1100 spin_lock_init(&adapter
->tpi_lock
);
1101 spin_lock_init(&adapter
->work_lock
);
1102 spin_lock_init(&adapter
->async_lock
);
1103 spin_lock_init(&adapter
->mac_lock
);
1105 INIT_WORK(&adapter
->ext_intr_handler_task
,
1107 INIT_DELAYED_WORK(&adapter
->stats_update_task
,
1110 pci_set_drvdata(pdev
, netdev
);
1113 pi
= &adapter
->port
[i
];
1115 netif_carrier_off(netdev
);
1116 netdev
->irq
= pdev
->irq
;
1117 netdev
->if_port
= i
;
1118 netdev
->mem_start
= mmio_start
;
1119 netdev
->mem_end
= mmio_start
+ mmio_len
- 1;
1120 netdev
->priv
= adapter
;
1121 netdev
->features
|= NETIF_F_SG
| NETIF_F_IP_CSUM
;
1122 netdev
->features
|= NETIF_F_LLTX
;
1124 adapter
->flags
|= RX_CSUM_ENABLED
| TCP_CSUM_CAPABLE
;
1126 netdev
->features
|= NETIF_F_HIGHDMA
;
1127 if (vlan_tso_capable(adapter
)) {
1128 #if defined(CONFIG_VLAN_8021Q) || defined(CONFIG_VLAN_8021Q_MODULE)
1129 adapter
->flags
|= VLAN_ACCEL_CAPABLE
;
1131 NETIF_F_HW_VLAN_TX
| NETIF_F_HW_VLAN_RX
;
1132 netdev
->vlan_rx_register
= vlan_rx_register
;
1133 netdev
->vlan_rx_kill_vid
= vlan_rx_kill_vid
;
1136 /* T204: disable TSO */
1137 if (!(is_T2(adapter
)) || bi
->port_number
!= 4) {
1138 adapter
->flags
|= TSO_CAPABLE
;
1139 netdev
->features
|= NETIF_F_TSO
;
1143 netdev
->open
= cxgb_open
;
1144 netdev
->stop
= cxgb_close
;
1145 netdev
->hard_start_xmit
= t1_start_xmit
;
1146 netdev
->hard_header_len
+= (adapter
->flags
& TSO_CAPABLE
) ?
1147 sizeof(struct cpl_tx_pkt_lso
) : sizeof(struct cpl_tx_pkt
);
1148 netdev
->get_stats
= t1_get_stats
;
1149 netdev
->set_multicast_list
= t1_set_rxmode
;
1150 netdev
->do_ioctl
= t1_ioctl
;
1151 netdev
->change_mtu
= t1_change_mtu
;
1152 netdev
->set_mac_address
= t1_set_mac_addr
;
1153 #ifdef CONFIG_NET_POLL_CONTROLLER
1154 netdev
->poll_controller
= t1_netpoll
;
1156 #ifdef CONFIG_CHELSIO_T1_NAPI
1157 netdev
->weight
= 64;
1158 netdev
->poll
= t1_poll
;
1161 SET_ETHTOOL_OPS(netdev
, &t1_ethtool_ops
);
1164 if (t1_init_sw_modules(adapter
, bi
) < 0) {
1170 * The card is now ready to go. If any errors occur during device
1171 * registration we do not fail the whole card but rather proceed only
1172 * with the ports we manage to register successfully. However we must
1173 * register at least one net device.
1175 for (i
= 0; i
< bi
->port_number
; ++i
) {
1176 err
= register_netdev(adapter
->port
[i
].dev
);
1178 CH_WARN("%s: cannot register net device %s, skipping\n",
1179 pci_name(pdev
), adapter
->port
[i
].dev
->name
);
1182 * Change the name we use for messages to the name of
1183 * the first successfully registered interface.
1185 if (!adapter
->registered_device_map
)
1186 adapter
->name
= adapter
->port
[i
].dev
->name
;
1188 __set_bit(i
, &adapter
->registered_device_map
);
1191 if (!adapter
->registered_device_map
) {
1192 CH_ERR("%s: could not register any net devices\n",
1194 goto out_release_adapter_res
;
1197 printk(KERN_INFO
"%s: %s (rev %d), %s %dMHz/%d-bit\n", adapter
->name
,
1198 bi
->desc
, adapter
->params
.chip_revision
,
1199 adapter
->params
.pci
.is_pcix
? "PCIX" : "PCI",
1200 adapter
->params
.pci
.speed
, adapter
->params
.pci
.width
);
1203 * Set the T1B ASIC and memory clocks.
1206 adapter
->t1powersave
= LCLOCK
; /* HW default is powersave mode. */
1208 adapter
->t1powersave
= HCLOCK
;
1209 if (t1_is_T1B(adapter
))
1210 t1_clock(adapter
, t1powersave
);
1214 out_release_adapter_res
:
1215 t1_free_sw_modules(adapter
);
1219 iounmap(adapter
->regs
);
1220 for (i
= bi
->port_number
- 1; i
>= 0; --i
)
1221 if (adapter
->port
[i
].dev
)
1222 free_netdev(adapter
->port
[i
].dev
);
1224 pci_release_regions(pdev
);
1226 pci_disable_device(pdev
);
1227 pci_set_drvdata(pdev
, NULL
);
1231 static void bit_bang(struct adapter
*adapter
, int bitdata
, int nbits
)
1242 for (i
= (nbits
- 1); i
> -1; i
--) {
1246 data
= ((bitdata
>> i
) & 0x1);
1247 __t1_tpi_read(adapter
, A_ELMER0_GPO
, &val
);
1256 /* Set SCLOCK low */
1258 __t1_tpi_write(adapter
, A_ELMER0_GPO
, val
);
1262 /* Write SCLOCK high */
1264 __t1_tpi_write(adapter
, A_ELMER0_GPO
, val
);
1269 static int t1_clock(struct adapter
*adapter
, int mode
)
1287 S_LOAD_MEM
= 1 << 5,
1288 S_LOAD_CORE
= 1 << 6,
1292 if (!t1_is_T1B(adapter
))
1293 return -ENODEV
; /* Can't re-clock this chip. */
1296 return 0; /* show current mode. */
1299 if ((adapter
->t1powersave
& 1) == (mode
& 1))
1300 return -EALREADY
; /* ASIC already running in mode. */
1302 if ((mode
& 1) == HCLOCK
) {
1305 adapter
->t1powersave
= HCLOCK
; /* overclock */
1309 adapter
->t1powersave
= LCLOCK
; /* underclock */
1312 /* Don't interrupt this serial stream! */
1313 spin_lock(&adapter
->tpi_lock
);
1315 /* Initialize for ASIC core */
1316 __t1_tpi_read(adapter
, A_ELMER0_GPO
, &val
);
1319 __t1_tpi_write(adapter
, A_ELMER0_GPO
, val
);
1321 __t1_tpi_read(adapter
, A_ELMER0_GPO
, &val
);
1322 val
&= ~S_LOAD_CORE
;
1324 __t1_tpi_write(adapter
, A_ELMER0_GPO
, val
);
1327 /* Serial program the ASIC clock synthesizer */
1328 bit_bang(adapter
, T_CORE_VAL
, T_CORE_BITS
);
1329 bit_bang(adapter
, N_CORE_VAL
, N_CORE_BITS
);
1330 bit_bang(adapter
, M_CORE_VAL
, M_CORE_BITS
);
1333 /* Finish ASIC core */
1334 __t1_tpi_read(adapter
, A_ELMER0_GPO
, &val
);
1337 __t1_tpi_write(adapter
, A_ELMER0_GPO
, val
);
1339 __t1_tpi_read(adapter
, A_ELMER0_GPO
, &val
);
1340 val
&= ~S_LOAD_CORE
;
1342 __t1_tpi_write(adapter
, A_ELMER0_GPO
, val
);
1345 /* Initialize for memory */
1346 __t1_tpi_read(adapter
, A_ELMER0_GPO
, &val
);
1349 __t1_tpi_write(adapter
, A_ELMER0_GPO
, val
);
1351 __t1_tpi_read(adapter
, A_ELMER0_GPO
, &val
);
1355 __t1_tpi_write(adapter
, A_ELMER0_GPO
, val
);
1358 /* Serial program the memory clock synthesizer */
1359 bit_bang(adapter
, T_MEM_VAL
, T_MEM_BITS
);
1360 bit_bang(adapter
, N_MEM_VAL
, N_MEM_BITS
);
1361 bit_bang(adapter
, M_MEM_VAL
, M_MEM_BITS
);
1365 __t1_tpi_read(adapter
, A_ELMER0_GPO
, &val
);
1368 __t1_tpi_write(adapter
, A_ELMER0_GPO
, val
);
1370 __t1_tpi_read(adapter
, A_ELMER0_GPO
, &val
);
1373 __t1_tpi_write(adapter
, A_ELMER0_GPO
, val
);
1375 spin_unlock(&adapter
->tpi_lock
);
1380 static inline void t1_sw_reset(struct pci_dev
*pdev
)
1382 pci_write_config_dword(pdev
, A_PCICFG_PM_CSR
, 3);
1383 pci_write_config_dword(pdev
, A_PCICFG_PM_CSR
, 0);
1386 static void __devexit
remove_one(struct pci_dev
*pdev
)
1388 struct net_device
*dev
= pci_get_drvdata(pdev
);
1392 struct adapter
*adapter
= dev
->priv
;
1394 for_each_port(adapter
, i
)
1395 if (test_bit(i
, &adapter
->registered_device_map
))
1396 unregister_netdev(adapter
->port
[i
].dev
);
1398 t1_free_sw_modules(adapter
);
1399 iounmap(adapter
->regs
);
1401 if (adapter
->port
[i
].dev
)
1402 free_netdev(adapter
->port
[i
].dev
);
1404 pci_release_regions(pdev
);
1405 pci_disable_device(pdev
);
1406 pci_set_drvdata(pdev
, NULL
);
1411 static struct pci_driver driver
= {
1413 .id_table
= t1_pci_tbl
,
1415 .remove
= __devexit_p(remove_one
),
1418 static int __init
t1_init_module(void)
1420 return pci_register_driver(&driver
);
1423 static void __exit
t1_cleanup_module(void)
1425 pci_unregister_driver(&driver
);
1428 module_init(t1_init_module
);
1429 module_exit(t1_cleanup_module
);