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
;
459 s
= mac
->ops
->statistics_update(mac
, MAC_STATS_UPDATE_FULL
);
461 len
= sizeof(u64
)*(&s
->TxFCSErrors
+ 1 - &s
->TxOctetsOK
);
462 memcpy(data
, &s
->TxOctetsOK
, len
);
465 len
= sizeof(u64
)*(&s
->RxFrameTooLongErrors
+ 1 - &s
->RxOctetsOK
);
466 memcpy(data
, &s
->RxOctetsOK
, len
);
469 t1_sge_get_port_stats(adapter
->sge
, dev
->if_port
, &ss
);
470 memcpy(data
, &ss
, sizeof(ss
));
473 t
= t1_sge_get_intr_counts(adapter
->sge
);
474 *data
++ = t
->rx_drops
;
475 *data
++ = t
->pure_rsps
;
476 *data
++ = t
->unhandled_irqs
;
477 *data
++ = t
->respQ_empty
;
478 *data
++ = t
->respQ_overflow
;
479 *data
++ = t
->freelistQ_empty
;
480 *data
++ = t
->pkt_too_big
;
481 *data
++ = t
->pkt_mismatch
;
482 *data
++ = t
->cmdQ_full
[0];
483 *data
++ = t
->cmdQ_full
[1];
486 const struct espi_intr_counts
*e
;
488 e
= t1_espi_get_intr_counts(adapter
->espi
);
489 *data
++ = e
->DIP2_parity_err
;
490 *data
++ = e
->DIP4_err
;
491 *data
++ = e
->rx_drops
;
492 *data
++ = e
->tx_drops
;
493 *data
++ = e
->rx_ovflw
;
494 *data
++ = e
->parity_err
;
498 static inline void reg_block_dump(struct adapter
*ap
, void *buf
,
499 unsigned int start
, unsigned int end
)
501 u32
*p
= buf
+ start
;
503 for ( ; start
<= end
; start
+= sizeof(u32
))
504 *p
++ = readl(ap
->regs
+ start
);
507 static void get_regs(struct net_device
*dev
, struct ethtool_regs
*regs
,
510 struct adapter
*ap
= dev
->priv
;
513 * Version scheme: bits 0..9: chip version, bits 10..15: chip revision
517 memset(buf
, 0, T2_REGMAP_SIZE
);
518 reg_block_dump(ap
, buf
, 0, A_SG_RESPACCUTIMER
);
519 reg_block_dump(ap
, buf
, A_MC3_CFG
, A_MC4_INT_CAUSE
);
520 reg_block_dump(ap
, buf
, A_TPI_ADDR
, A_TPI_PAR
);
521 reg_block_dump(ap
, buf
, A_TP_IN_CONFIG
, A_TP_TX_DROP_COUNT
);
522 reg_block_dump(ap
, buf
, A_RAT_ROUTE_CONTROL
, A_RAT_INTR_CAUSE
);
523 reg_block_dump(ap
, buf
, A_CSPI_RX_AE_WM
, A_CSPI_INTR_ENABLE
);
524 reg_block_dump(ap
, buf
, A_ESPI_SCH_TOKEN0
, A_ESPI_GOSTAT
);
525 reg_block_dump(ap
, buf
, A_ULP_ULIMIT
, A_ULP_PIO_CTRL
);
526 reg_block_dump(ap
, buf
, A_PL_ENABLE
, A_PL_CAUSE
);
527 reg_block_dump(ap
, buf
, A_MC5_CONFIG
, A_MC5_MASK_WRITE_CMD
);
530 static int get_settings(struct net_device
*dev
, struct ethtool_cmd
*cmd
)
532 struct adapter
*adapter
= dev
->priv
;
533 struct port_info
*p
= &adapter
->port
[dev
->if_port
];
535 cmd
->supported
= p
->link_config
.supported
;
536 cmd
->advertising
= p
->link_config
.advertising
;
538 if (netif_carrier_ok(dev
)) {
539 cmd
->speed
= p
->link_config
.speed
;
540 cmd
->duplex
= p
->link_config
.duplex
;
546 cmd
->port
= (cmd
->supported
& SUPPORTED_TP
) ? PORT_TP
: PORT_FIBRE
;
547 cmd
->phy_address
= p
->phy
->addr
;
548 cmd
->transceiver
= XCVR_EXTERNAL
;
549 cmd
->autoneg
= p
->link_config
.autoneg
;
555 static int speed_duplex_to_caps(int speed
, int duplex
)
561 if (duplex
== DUPLEX_FULL
)
562 cap
= SUPPORTED_10baseT_Full
;
564 cap
= SUPPORTED_10baseT_Half
;
567 if (duplex
== DUPLEX_FULL
)
568 cap
= SUPPORTED_100baseT_Full
;
570 cap
= SUPPORTED_100baseT_Half
;
573 if (duplex
== DUPLEX_FULL
)
574 cap
= SUPPORTED_1000baseT_Full
;
576 cap
= SUPPORTED_1000baseT_Half
;
579 if (duplex
== DUPLEX_FULL
)
580 cap
= SUPPORTED_10000baseT_Full
;
585 #define ADVERTISED_MASK (ADVERTISED_10baseT_Half | ADVERTISED_10baseT_Full | \
586 ADVERTISED_100baseT_Half | ADVERTISED_100baseT_Full | \
587 ADVERTISED_1000baseT_Half | ADVERTISED_1000baseT_Full | \
588 ADVERTISED_10000baseT_Full)
590 static int set_settings(struct net_device
*dev
, struct ethtool_cmd
*cmd
)
592 struct adapter
*adapter
= dev
->priv
;
593 struct port_info
*p
= &adapter
->port
[dev
->if_port
];
594 struct link_config
*lc
= &p
->link_config
;
596 if (!(lc
->supported
& SUPPORTED_Autoneg
))
597 return -EOPNOTSUPP
; /* can't change speed/duplex */
599 if (cmd
->autoneg
== AUTONEG_DISABLE
) {
600 int cap
= speed_duplex_to_caps(cmd
->speed
, cmd
->duplex
);
602 if (!(lc
->supported
& cap
) || cmd
->speed
== SPEED_1000
)
604 lc
->requested_speed
= cmd
->speed
;
605 lc
->requested_duplex
= cmd
->duplex
;
608 cmd
->advertising
&= ADVERTISED_MASK
;
609 if (cmd
->advertising
& (cmd
->advertising
- 1))
610 cmd
->advertising
= lc
->supported
;
611 cmd
->advertising
&= lc
->supported
;
612 if (!cmd
->advertising
)
614 lc
->requested_speed
= SPEED_INVALID
;
615 lc
->requested_duplex
= DUPLEX_INVALID
;
616 lc
->advertising
= cmd
->advertising
| ADVERTISED_Autoneg
;
618 lc
->autoneg
= cmd
->autoneg
;
619 if (netif_running(dev
))
620 t1_link_start(p
->phy
, p
->mac
, lc
);
624 static void get_pauseparam(struct net_device
*dev
,
625 struct ethtool_pauseparam
*epause
)
627 struct adapter
*adapter
= dev
->priv
;
628 struct port_info
*p
= &adapter
->port
[dev
->if_port
];
630 epause
->autoneg
= (p
->link_config
.requested_fc
& PAUSE_AUTONEG
) != 0;
631 epause
->rx_pause
= (p
->link_config
.fc
& PAUSE_RX
) != 0;
632 epause
->tx_pause
= (p
->link_config
.fc
& PAUSE_TX
) != 0;
635 static int set_pauseparam(struct net_device
*dev
,
636 struct ethtool_pauseparam
*epause
)
638 struct adapter
*adapter
= dev
->priv
;
639 struct port_info
*p
= &adapter
->port
[dev
->if_port
];
640 struct link_config
*lc
= &p
->link_config
;
642 if (epause
->autoneg
== AUTONEG_DISABLE
)
643 lc
->requested_fc
= 0;
644 else if (lc
->supported
& SUPPORTED_Autoneg
)
645 lc
->requested_fc
= PAUSE_AUTONEG
;
649 if (epause
->rx_pause
)
650 lc
->requested_fc
|= PAUSE_RX
;
651 if (epause
->tx_pause
)
652 lc
->requested_fc
|= PAUSE_TX
;
653 if (lc
->autoneg
== AUTONEG_ENABLE
) {
654 if (netif_running(dev
))
655 t1_link_start(p
->phy
, p
->mac
, lc
);
657 lc
->fc
= lc
->requested_fc
& (PAUSE_RX
| PAUSE_TX
);
658 if (netif_running(dev
))
659 p
->mac
->ops
->set_speed_duplex_fc(p
->mac
, -1, -1,
665 static u32
get_rx_csum(struct net_device
*dev
)
667 struct adapter
*adapter
= dev
->priv
;
669 return (adapter
->flags
& RX_CSUM_ENABLED
) != 0;
672 static int set_rx_csum(struct net_device
*dev
, u32 data
)
674 struct adapter
*adapter
= dev
->priv
;
677 adapter
->flags
|= RX_CSUM_ENABLED
;
679 adapter
->flags
&= ~RX_CSUM_ENABLED
;
683 static int set_tso(struct net_device
*dev
, u32 value
)
685 struct adapter
*adapter
= dev
->priv
;
687 if (!(adapter
->flags
& TSO_CAPABLE
))
688 return value
? -EOPNOTSUPP
: 0;
689 return ethtool_op_set_tso(dev
, value
);
692 static void get_sge_param(struct net_device
*dev
, struct ethtool_ringparam
*e
)
694 struct adapter
*adapter
= dev
->priv
;
695 int jumbo_fl
= t1_is_T1B(adapter
) ? 1 : 0;
697 e
->rx_max_pending
= MAX_RX_BUFFERS
;
698 e
->rx_mini_max_pending
= 0;
699 e
->rx_jumbo_max_pending
= MAX_RX_JUMBO_BUFFERS
;
700 e
->tx_max_pending
= MAX_CMDQ_ENTRIES
;
702 e
->rx_pending
= adapter
->params
.sge
.freelQ_size
[!jumbo_fl
];
703 e
->rx_mini_pending
= 0;
704 e
->rx_jumbo_pending
= adapter
->params
.sge
.freelQ_size
[jumbo_fl
];
705 e
->tx_pending
= adapter
->params
.sge
.cmdQ_size
[0];
708 static int set_sge_param(struct net_device
*dev
, struct ethtool_ringparam
*e
)
710 struct adapter
*adapter
= dev
->priv
;
711 int jumbo_fl
= t1_is_T1B(adapter
) ? 1 : 0;
713 if (e
->rx_pending
> MAX_RX_BUFFERS
|| e
->rx_mini_pending
||
714 e
->rx_jumbo_pending
> MAX_RX_JUMBO_BUFFERS
||
715 e
->tx_pending
> MAX_CMDQ_ENTRIES
||
716 e
->rx_pending
< MIN_FL_ENTRIES
||
717 e
->rx_jumbo_pending
< MIN_FL_ENTRIES
||
718 e
->tx_pending
< (adapter
->params
.nports
+ 1) * (MAX_SKB_FRAGS
+ 1))
721 if (adapter
->flags
& FULL_INIT_DONE
)
724 adapter
->params
.sge
.freelQ_size
[!jumbo_fl
] = e
->rx_pending
;
725 adapter
->params
.sge
.freelQ_size
[jumbo_fl
] = e
->rx_jumbo_pending
;
726 adapter
->params
.sge
.cmdQ_size
[0] = e
->tx_pending
;
727 adapter
->params
.sge
.cmdQ_size
[1] = e
->tx_pending
> MAX_CMDQ1_ENTRIES
?
728 MAX_CMDQ1_ENTRIES
: e
->tx_pending
;
732 static int set_coalesce(struct net_device
*dev
, struct ethtool_coalesce
*c
)
734 struct adapter
*adapter
= dev
->priv
;
736 adapter
->params
.sge
.rx_coalesce_usecs
= c
->rx_coalesce_usecs
;
737 adapter
->params
.sge
.coalesce_enable
= c
->use_adaptive_rx_coalesce
;
738 adapter
->params
.sge
.sample_interval_usecs
= c
->rate_sample_interval
;
739 t1_sge_set_coalesce_params(adapter
->sge
, &adapter
->params
.sge
);
743 static int get_coalesce(struct net_device
*dev
, struct ethtool_coalesce
*c
)
745 struct adapter
*adapter
= dev
->priv
;
747 c
->rx_coalesce_usecs
= adapter
->params
.sge
.rx_coalesce_usecs
;
748 c
->rate_sample_interval
= adapter
->params
.sge
.sample_interval_usecs
;
749 c
->use_adaptive_rx_coalesce
= adapter
->params
.sge
.coalesce_enable
;
753 static int get_eeprom_len(struct net_device
*dev
)
755 struct adapter
*adapter
= dev
->priv
;
757 return t1_is_asic(adapter
) ? EEPROM_SIZE
: 0;
760 #define EEPROM_MAGIC(ap) \
761 (PCI_VENDOR_ID_CHELSIO | ((ap)->params.chip_version << 16))
763 static int get_eeprom(struct net_device
*dev
, struct ethtool_eeprom
*e
,
767 u8 buf
[EEPROM_SIZE
] __attribute__((aligned(4)));
768 struct adapter
*adapter
= dev
->priv
;
770 e
->magic
= EEPROM_MAGIC(adapter
);
771 for (i
= e
->offset
& ~3; i
< e
->offset
+ e
->len
; i
+= sizeof(u32
))
772 t1_seeprom_read(adapter
, i
, (u32
*)&buf
[i
]);
773 memcpy(data
, buf
+ e
->offset
, e
->len
);
777 static const struct ethtool_ops t1_ethtool_ops
= {
778 .get_settings
= get_settings
,
779 .set_settings
= set_settings
,
780 .get_drvinfo
= get_drvinfo
,
781 .get_msglevel
= get_msglevel
,
782 .set_msglevel
= set_msglevel
,
783 .get_ringparam
= get_sge_param
,
784 .set_ringparam
= set_sge_param
,
785 .get_coalesce
= get_coalesce
,
786 .set_coalesce
= set_coalesce
,
787 .get_eeprom_len
= get_eeprom_len
,
788 .get_eeprom
= get_eeprom
,
789 .get_pauseparam
= get_pauseparam
,
790 .set_pauseparam
= set_pauseparam
,
791 .get_rx_csum
= get_rx_csum
,
792 .set_rx_csum
= set_rx_csum
,
793 .get_tx_csum
= ethtool_op_get_tx_csum
,
794 .set_tx_csum
= ethtool_op_set_tx_csum
,
795 .get_sg
= ethtool_op_get_sg
,
796 .set_sg
= ethtool_op_set_sg
,
797 .get_link
= ethtool_op_get_link
,
798 .get_strings
= get_strings
,
799 .get_stats_count
= get_stats_count
,
800 .get_ethtool_stats
= get_stats
,
801 .get_regs_len
= get_regs_len
,
802 .get_regs
= get_regs
,
803 .get_tso
= ethtool_op_get_tso
,
807 static int t1_ioctl(struct net_device
*dev
, struct ifreq
*req
, int cmd
)
809 struct adapter
*adapter
= dev
->priv
;
810 struct mii_ioctl_data
*data
= if_mii(req
);
814 data
->phy_id
= adapter
->port
[dev
->if_port
].phy
->addr
;
817 struct cphy
*phy
= adapter
->port
[dev
->if_port
].phy
;
822 phy
->mdio_read(adapter
, data
->phy_id
, 0, data
->reg_num
& 0x1f,
828 struct cphy
*phy
= adapter
->port
[dev
->if_port
].phy
;
830 if (!capable(CAP_NET_ADMIN
))
832 if (!phy
->mdio_write
)
834 phy
->mdio_write(adapter
, data
->phy_id
, 0, data
->reg_num
& 0x1f,
845 static int t1_change_mtu(struct net_device
*dev
, int new_mtu
)
848 struct adapter
*adapter
= dev
->priv
;
849 struct cmac
*mac
= adapter
->port
[dev
->if_port
].mac
;
851 if (!mac
->ops
->set_mtu
)
855 if ((ret
= mac
->ops
->set_mtu(mac
, new_mtu
)))
861 static int t1_set_mac_addr(struct net_device
*dev
, void *p
)
863 struct adapter
*adapter
= dev
->priv
;
864 struct cmac
*mac
= adapter
->port
[dev
->if_port
].mac
;
865 struct sockaddr
*addr
= p
;
867 if (!mac
->ops
->macaddress_set
)
870 memcpy(dev
->dev_addr
, addr
->sa_data
, dev
->addr_len
);
871 mac
->ops
->macaddress_set(mac
, dev
->dev_addr
);
875 #if defined(CONFIG_VLAN_8021Q) || defined(CONFIG_VLAN_8021Q_MODULE)
876 static void vlan_rx_register(struct net_device
*dev
,
877 struct vlan_group
*grp
)
879 struct adapter
*adapter
= dev
->priv
;
881 spin_lock_irq(&adapter
->async_lock
);
882 adapter
->vlan_grp
= grp
;
883 t1_set_vlan_accel(adapter
, grp
!= NULL
);
884 spin_unlock_irq(&adapter
->async_lock
);
888 #ifdef CONFIG_NET_POLL_CONTROLLER
889 static void t1_netpoll(struct net_device
*dev
)
892 struct adapter
*adapter
= dev
->priv
;
894 local_irq_save(flags
);
895 t1_interrupt(adapter
->pdev
->irq
, adapter
);
896 local_irq_restore(flags
);
901 * Periodic accumulation of MAC statistics. This is used only if the MAC
902 * does not have any other way to prevent stats counter overflow.
904 static void mac_stats_task(struct work_struct
*work
)
907 struct adapter
*adapter
=
908 container_of(work
, struct adapter
, stats_update_task
.work
);
910 for_each_port(adapter
, i
) {
911 struct port_info
*p
= &adapter
->port
[i
];
913 if (netif_running(p
->dev
))
914 p
->mac
->ops
->statistics_update(p
->mac
,
915 MAC_STATS_UPDATE_FAST
);
918 /* Schedule the next statistics update if any port is active. */
919 spin_lock(&adapter
->work_lock
);
920 if (adapter
->open_device_map
& PORT_MASK
)
921 schedule_mac_stats_update(adapter
,
922 adapter
->params
.stats_update_period
);
923 spin_unlock(&adapter
->work_lock
);
927 * Processes elmer0 external interrupts in process context.
929 static void ext_intr_task(struct work_struct
*work
)
931 struct adapter
*adapter
=
932 container_of(work
, struct adapter
, ext_intr_handler_task
);
934 t1_elmer0_ext_intr_handler(adapter
);
936 /* Now reenable external interrupts */
937 spin_lock_irq(&adapter
->async_lock
);
938 adapter
->slow_intr_mask
|= F_PL_INTR_EXT
;
939 writel(F_PL_INTR_EXT
, adapter
->regs
+ A_PL_CAUSE
);
940 writel(adapter
->slow_intr_mask
| F_PL_INTR_SGE_DATA
,
941 adapter
->regs
+ A_PL_ENABLE
);
942 spin_unlock_irq(&adapter
->async_lock
);
946 * Interrupt-context handler for elmer0 external interrupts.
948 void t1_elmer0_ext_intr(struct adapter
*adapter
)
951 * Schedule a task to handle external interrupts as we require
952 * a process context. We disable EXT interrupts in the interim
953 * and let the task reenable them when it's done.
955 adapter
->slow_intr_mask
&= ~F_PL_INTR_EXT
;
956 writel(adapter
->slow_intr_mask
| F_PL_INTR_SGE_DATA
,
957 adapter
->regs
+ A_PL_ENABLE
);
958 schedule_work(&adapter
->ext_intr_handler_task
);
961 void t1_fatal_err(struct adapter
*adapter
)
963 if (adapter
->flags
& FULL_INIT_DONE
) {
964 t1_sge_stop(adapter
->sge
);
965 t1_interrupts_disable(adapter
);
967 CH_ALERT("%s: encountered fatal error, operation suspended\n",
971 static int __devinit
init_one(struct pci_dev
*pdev
,
972 const struct pci_device_id
*ent
)
974 static int version_printed
;
976 int i
, err
, pci_using_dac
= 0;
977 unsigned long mmio_start
, mmio_len
;
978 const struct board_info
*bi
;
979 struct adapter
*adapter
= NULL
;
980 struct port_info
*pi
;
982 if (!version_printed
) {
983 printk(KERN_INFO
"%s - version %s\n", DRV_DESCRIPTION
,
988 err
= pci_enable_device(pdev
);
992 if (!(pci_resource_flags(pdev
, 0) & IORESOURCE_MEM
)) {
993 CH_ERR("%s: cannot find PCI device memory base address\n",
996 goto out_disable_pdev
;
999 if (!pci_set_dma_mask(pdev
, DMA_64BIT_MASK
)) {
1002 if (pci_set_consistent_dma_mask(pdev
, DMA_64BIT_MASK
)) {
1003 CH_ERR("%s: unable to obtain 64-bit DMA for"
1004 "consistent allocations\n", pci_name(pdev
));
1006 goto out_disable_pdev
;
1009 } else if ((err
= pci_set_dma_mask(pdev
, DMA_32BIT_MASK
)) != 0) {
1010 CH_ERR("%s: no usable DMA configuration\n", pci_name(pdev
));
1011 goto out_disable_pdev
;
1014 err
= pci_request_regions(pdev
, DRV_NAME
);
1016 CH_ERR("%s: cannot obtain PCI resources\n", pci_name(pdev
));
1017 goto out_disable_pdev
;
1020 pci_set_master(pdev
);
1022 mmio_start
= pci_resource_start(pdev
, 0);
1023 mmio_len
= pci_resource_len(pdev
, 0);
1024 bi
= t1_get_board_info(ent
->driver_data
);
1026 for (i
= 0; i
< bi
->port_number
; ++i
) {
1027 struct net_device
*netdev
;
1029 netdev
= alloc_etherdev(adapter
? 0 : sizeof(*adapter
));
1035 SET_MODULE_OWNER(netdev
);
1036 SET_NETDEV_DEV(netdev
, &pdev
->dev
);
1039 adapter
= netdev
->priv
;
1040 adapter
->pdev
= pdev
;
1041 adapter
->port
[0].dev
= netdev
; /* so we don't leak it */
1043 adapter
->regs
= ioremap(mmio_start
, mmio_len
);
1044 if (!adapter
->regs
) {
1045 CH_ERR("%s: cannot map device registers\n",
1051 if (t1_get_board_rev(adapter
, bi
, &adapter
->params
)) {
1052 err
= -ENODEV
; /* Can't handle this chip rev */
1056 adapter
->name
= pci_name(pdev
);
1057 adapter
->msg_enable
= dflt_msg_enable
;
1058 adapter
->mmio_len
= mmio_len
;
1060 spin_lock_init(&adapter
->tpi_lock
);
1061 spin_lock_init(&adapter
->work_lock
);
1062 spin_lock_init(&adapter
->async_lock
);
1063 spin_lock_init(&adapter
->mac_lock
);
1065 INIT_WORK(&adapter
->ext_intr_handler_task
,
1067 INIT_DELAYED_WORK(&adapter
->stats_update_task
,
1070 pci_set_drvdata(pdev
, netdev
);
1073 pi
= &adapter
->port
[i
];
1075 netif_carrier_off(netdev
);
1076 netdev
->irq
= pdev
->irq
;
1077 netdev
->if_port
= i
;
1078 netdev
->mem_start
= mmio_start
;
1079 netdev
->mem_end
= mmio_start
+ mmio_len
- 1;
1080 netdev
->priv
= adapter
;
1081 netdev
->features
|= NETIF_F_SG
| NETIF_F_IP_CSUM
;
1082 netdev
->features
|= NETIF_F_LLTX
;
1084 adapter
->flags
|= RX_CSUM_ENABLED
| TCP_CSUM_CAPABLE
;
1086 netdev
->features
|= NETIF_F_HIGHDMA
;
1087 if (vlan_tso_capable(adapter
)) {
1088 #if defined(CONFIG_VLAN_8021Q) || defined(CONFIG_VLAN_8021Q_MODULE)
1089 adapter
->flags
|= VLAN_ACCEL_CAPABLE
;
1091 NETIF_F_HW_VLAN_TX
| NETIF_F_HW_VLAN_RX
;
1092 netdev
->vlan_rx_register
= vlan_rx_register
;
1095 /* T204: disable TSO */
1096 if (!(is_T2(adapter
)) || bi
->port_number
!= 4) {
1097 adapter
->flags
|= TSO_CAPABLE
;
1098 netdev
->features
|= NETIF_F_TSO
;
1102 netdev
->open
= cxgb_open
;
1103 netdev
->stop
= cxgb_close
;
1104 netdev
->hard_start_xmit
= t1_start_xmit
;
1105 netdev
->hard_header_len
+= (adapter
->flags
& TSO_CAPABLE
) ?
1106 sizeof(struct cpl_tx_pkt_lso
) : sizeof(struct cpl_tx_pkt
);
1107 netdev
->get_stats
= t1_get_stats
;
1108 netdev
->set_multicast_list
= t1_set_rxmode
;
1109 netdev
->do_ioctl
= t1_ioctl
;
1110 netdev
->change_mtu
= t1_change_mtu
;
1111 netdev
->set_mac_address
= t1_set_mac_addr
;
1112 #ifdef CONFIG_NET_POLL_CONTROLLER
1113 netdev
->poll_controller
= t1_netpoll
;
1115 #ifdef CONFIG_CHELSIO_T1_NAPI
1116 netdev
->weight
= 64;
1117 netdev
->poll
= t1_poll
;
1120 SET_ETHTOOL_OPS(netdev
, &t1_ethtool_ops
);
1123 if (t1_init_sw_modules(adapter
, bi
) < 0) {
1129 * The card is now ready to go. If any errors occur during device
1130 * registration we do not fail the whole card but rather proceed only
1131 * with the ports we manage to register successfully. However we must
1132 * register at least one net device.
1134 for (i
= 0; i
< bi
->port_number
; ++i
) {
1135 err
= register_netdev(adapter
->port
[i
].dev
);
1137 CH_WARN("%s: cannot register net device %s, skipping\n",
1138 pci_name(pdev
), adapter
->port
[i
].dev
->name
);
1141 * Change the name we use for messages to the name of
1142 * the first successfully registered interface.
1144 if (!adapter
->registered_device_map
)
1145 adapter
->name
= adapter
->port
[i
].dev
->name
;
1147 __set_bit(i
, &adapter
->registered_device_map
);
1150 if (!adapter
->registered_device_map
) {
1151 CH_ERR("%s: could not register any net devices\n",
1153 goto out_release_adapter_res
;
1156 printk(KERN_INFO
"%s: %s (rev %d), %s %dMHz/%d-bit\n", adapter
->name
,
1157 bi
->desc
, adapter
->params
.chip_revision
,
1158 adapter
->params
.pci
.is_pcix
? "PCIX" : "PCI",
1159 adapter
->params
.pci
.speed
, adapter
->params
.pci
.width
);
1162 * Set the T1B ASIC and memory clocks.
1165 adapter
->t1powersave
= LCLOCK
; /* HW default is powersave mode. */
1167 adapter
->t1powersave
= HCLOCK
;
1168 if (t1_is_T1B(adapter
))
1169 t1_clock(adapter
, t1powersave
);
1173 out_release_adapter_res
:
1174 t1_free_sw_modules(adapter
);
1178 iounmap(adapter
->regs
);
1179 for (i
= bi
->port_number
- 1; i
>= 0; --i
)
1180 if (adapter
->port
[i
].dev
)
1181 free_netdev(adapter
->port
[i
].dev
);
1183 pci_release_regions(pdev
);
1185 pci_disable_device(pdev
);
1186 pci_set_drvdata(pdev
, NULL
);
1190 static void bit_bang(struct adapter
*adapter
, int bitdata
, int nbits
)
1201 for (i
= (nbits
- 1); i
> -1; i
--) {
1205 data
= ((bitdata
>> i
) & 0x1);
1206 __t1_tpi_read(adapter
, A_ELMER0_GPO
, &val
);
1215 /* Set SCLOCK low */
1217 __t1_tpi_write(adapter
, A_ELMER0_GPO
, val
);
1221 /* Write SCLOCK high */
1223 __t1_tpi_write(adapter
, A_ELMER0_GPO
, val
);
1228 static int t1_clock(struct adapter
*adapter
, int mode
)
1246 S_LOAD_MEM
= 1 << 5,
1247 S_LOAD_CORE
= 1 << 6,
1251 if (!t1_is_T1B(adapter
))
1252 return -ENODEV
; /* Can't re-clock this chip. */
1255 return 0; /* show current mode. */
1257 if ((adapter
->t1powersave
& 1) == (mode
& 1))
1258 return -EALREADY
; /* ASIC already running in mode. */
1260 if ((mode
& 1) == HCLOCK
) {
1263 adapter
->t1powersave
= HCLOCK
; /* overclock */
1267 adapter
->t1powersave
= LCLOCK
; /* underclock */
1270 /* Don't interrupt this serial stream! */
1271 spin_lock(&adapter
->tpi_lock
);
1273 /* Initialize for ASIC core */
1274 __t1_tpi_read(adapter
, A_ELMER0_GPO
, &val
);
1277 __t1_tpi_write(adapter
, A_ELMER0_GPO
, val
);
1279 __t1_tpi_read(adapter
, A_ELMER0_GPO
, &val
);
1280 val
&= ~S_LOAD_CORE
;
1282 __t1_tpi_write(adapter
, A_ELMER0_GPO
, val
);
1285 /* Serial program the ASIC clock synthesizer */
1286 bit_bang(adapter
, T_CORE_VAL
, T_CORE_BITS
);
1287 bit_bang(adapter
, N_CORE_VAL
, N_CORE_BITS
);
1288 bit_bang(adapter
, M_CORE_VAL
, M_CORE_BITS
);
1291 /* Finish ASIC core */
1292 __t1_tpi_read(adapter
, A_ELMER0_GPO
, &val
);
1295 __t1_tpi_write(adapter
, A_ELMER0_GPO
, val
);
1297 __t1_tpi_read(adapter
, A_ELMER0_GPO
, &val
);
1298 val
&= ~S_LOAD_CORE
;
1300 __t1_tpi_write(adapter
, A_ELMER0_GPO
, val
);
1303 /* Initialize for memory */
1304 __t1_tpi_read(adapter
, A_ELMER0_GPO
, &val
);
1307 __t1_tpi_write(adapter
, A_ELMER0_GPO
, val
);
1309 __t1_tpi_read(adapter
, A_ELMER0_GPO
, &val
);
1313 __t1_tpi_write(adapter
, A_ELMER0_GPO
, val
);
1316 /* Serial program the memory clock synthesizer */
1317 bit_bang(adapter
, T_MEM_VAL
, T_MEM_BITS
);
1318 bit_bang(adapter
, N_MEM_VAL
, N_MEM_BITS
);
1319 bit_bang(adapter
, M_MEM_VAL
, M_MEM_BITS
);
1323 __t1_tpi_read(adapter
, A_ELMER0_GPO
, &val
);
1326 __t1_tpi_write(adapter
, A_ELMER0_GPO
, val
);
1328 __t1_tpi_read(adapter
, A_ELMER0_GPO
, &val
);
1331 __t1_tpi_write(adapter
, A_ELMER0_GPO
, val
);
1333 spin_unlock(&adapter
->tpi_lock
);
1338 static inline void t1_sw_reset(struct pci_dev
*pdev
)
1340 pci_write_config_dword(pdev
, A_PCICFG_PM_CSR
, 3);
1341 pci_write_config_dword(pdev
, A_PCICFG_PM_CSR
, 0);
1344 static void __devexit
remove_one(struct pci_dev
*pdev
)
1346 struct net_device
*dev
= pci_get_drvdata(pdev
);
1347 struct adapter
*adapter
= dev
->priv
;
1350 for_each_port(adapter
, i
) {
1351 if (test_bit(i
, &adapter
->registered_device_map
))
1352 unregister_netdev(adapter
->port
[i
].dev
);
1355 t1_free_sw_modules(adapter
);
1356 iounmap(adapter
->regs
);
1359 if (adapter
->port
[i
].dev
)
1360 free_netdev(adapter
->port
[i
].dev
);
1363 pci_release_regions(pdev
);
1364 pci_disable_device(pdev
);
1365 pci_set_drvdata(pdev
, NULL
);
1369 static struct pci_driver driver
= {
1371 .id_table
= t1_pci_tbl
,
1373 .remove
= __devexit_p(remove_one
),
1376 static int __init
t1_init_module(void)
1378 return pci_register_driver(&driver
);
1381 static void __exit
t1_cleanup_module(void)
1383 pci_unregister_driver(&driver
);
1386 module_init(t1_init_module
);
1387 module_exit(t1_cleanup_module
);