2 * Copyright (c) 2003-2008 Chelsio, Inc. All rights reserved.
4 * This software is available to you under a choice of one of two
5 * licenses. You may choose to be licensed under the terms of the GNU
6 * General Public License (GPL) Version 2, available from the file
7 * COPYING in the main directory of this source tree, or the
8 * OpenIB.org BSD license below:
10 * Redistribution and use in source and binary forms, with or
11 * without modification, are permitted provided that the following
14 * - Redistributions of source code must retain the above
15 * copyright notice, this list of conditions and the following
18 * - Redistributions in binary form must reproduce the above
19 * copyright notice, this list of conditions and the following
20 * disclaimer in the documentation and/or other materials
21 * provided with the distribution.
23 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
24 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
25 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
26 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
27 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
28 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
29 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
32 #include <linux/module.h>
33 #include <linux/moduleparam.h>
34 #include <linux/init.h>
35 #include <linux/pci.h>
36 #include <linux/dma-mapping.h>
37 #include <linux/netdevice.h>
38 #include <linux/etherdevice.h>
39 #include <linux/if_vlan.h>
40 #include <linux/mdio.h>
41 #include <linux/sockios.h>
42 #include <linux/workqueue.h>
43 #include <linux/proc_fs.h>
44 #include <linux/rtnetlink.h>
45 #include <linux/firmware.h>
46 #include <linux/log2.h>
47 #include <linux/stringify.h>
48 #include <linux/sched.h>
49 #include <linux/slab.h>
50 #include <asm/uaccess.h>
53 #include "cxgb3_ioctl.h"
55 #include "cxgb3_offload.h"
58 #include "cxgb3_ctl_defs.h"
60 #include "firmware_exports.h"
63 MAX_TXQ_ENTRIES
= 16384,
64 MAX_CTRL_TXQ_ENTRIES
= 1024,
65 MAX_RSPQ_ENTRIES
= 16384,
66 MAX_RX_BUFFERS
= 16384,
67 MAX_RX_JUMBO_BUFFERS
= 16384,
69 MIN_CTRL_TXQ_ENTRIES
= 4,
70 MIN_RSPQ_ENTRIES
= 32,
74 #define PORT_MASK ((1 << MAX_NPORTS) - 1)
76 #define DFLT_MSG_ENABLE (NETIF_MSG_DRV | NETIF_MSG_PROBE | NETIF_MSG_LINK | \
77 NETIF_MSG_TIMER | NETIF_MSG_IFDOWN | NETIF_MSG_IFUP |\
78 NETIF_MSG_RX_ERR | NETIF_MSG_TX_ERR)
80 #define EEPROM_MAGIC 0x38E2F10C
82 #define CH_DEVICE(devid, idx) \
83 { PCI_VENDOR_ID_CHELSIO, devid, PCI_ANY_ID, PCI_ANY_ID, 0, 0, idx }
85 static DEFINE_PCI_DEVICE_TABLE(cxgb3_pci_tbl
) = {
86 CH_DEVICE(0x20, 0), /* PE9000 */
87 CH_DEVICE(0x21, 1), /* T302E */
88 CH_DEVICE(0x22, 2), /* T310E */
89 CH_DEVICE(0x23, 3), /* T320X */
90 CH_DEVICE(0x24, 1), /* T302X */
91 CH_DEVICE(0x25, 3), /* T320E */
92 CH_DEVICE(0x26, 2), /* T310X */
93 CH_DEVICE(0x30, 2), /* T3B10 */
94 CH_DEVICE(0x31, 3), /* T3B20 */
95 CH_DEVICE(0x32, 1), /* T3B02 */
96 CH_DEVICE(0x35, 6), /* T3C20-derived T3C10 */
97 CH_DEVICE(0x36, 3), /* S320E-CR */
98 CH_DEVICE(0x37, 7), /* N320E-G2 */
102 MODULE_DESCRIPTION(DRV_DESC
);
103 MODULE_AUTHOR("Chelsio Communications");
104 MODULE_LICENSE("Dual BSD/GPL");
105 MODULE_VERSION(DRV_VERSION
);
106 MODULE_DEVICE_TABLE(pci
, cxgb3_pci_tbl
);
108 static int dflt_msg_enable
= DFLT_MSG_ENABLE
;
110 module_param(dflt_msg_enable
, int, 0644);
111 MODULE_PARM_DESC(dflt_msg_enable
, "Chelsio T3 default message enable bitmap");
114 * The driver uses the best interrupt scheme available on a platform in the
115 * order MSI-X, MSI, legacy pin interrupts. This parameter determines which
116 * of these schemes the driver may consider as follows:
118 * msi = 2: choose from among all three options
119 * msi = 1: only consider MSI and pin interrupts
120 * msi = 0: force pin interrupts
124 module_param(msi
, int, 0644);
125 MODULE_PARM_DESC(msi
, "whether to use MSI or MSI-X");
128 * The driver enables offload as a default.
129 * To disable it, use ofld_disable = 1.
132 static int ofld_disable
= 0;
134 module_param(ofld_disable
, int, 0644);
135 MODULE_PARM_DESC(ofld_disable
, "whether to enable offload at init time or not");
138 * We have work elements that we need to cancel when an interface is taken
139 * down. Normally the work elements would be executed by keventd but that
140 * can deadlock because of linkwatch. If our close method takes the rtnl
141 * lock and linkwatch is ahead of our work elements in keventd, linkwatch
142 * will block keventd as it needs the rtnl lock, and we'll deadlock waiting
143 * for our work to complete. Get our own work queue to solve this.
145 struct workqueue_struct
*cxgb3_wq
;
148 * link_report - show link status and link speed/duplex
149 * @p: the port whose settings are to be reported
151 * Shows the link status, speed, and duplex of a port.
153 static void link_report(struct net_device
*dev
)
155 if (!netif_carrier_ok(dev
))
156 printk(KERN_INFO
"%s: link down\n", dev
->name
);
158 const char *s
= "10Mbps";
159 const struct port_info
*p
= netdev_priv(dev
);
161 switch (p
->link_config
.speed
) {
173 printk(KERN_INFO
"%s: link up, %s, %s-duplex\n", dev
->name
, s
,
174 p
->link_config
.duplex
== DUPLEX_FULL
? "full" : "half");
178 static void enable_tx_fifo_drain(struct adapter
*adapter
,
179 struct port_info
*pi
)
181 t3_set_reg_field(adapter
, A_XGM_TXFIFO_CFG
+ pi
->mac
.offset
, 0,
183 t3_write_reg(adapter
, A_XGM_RX_CTRL
+ pi
->mac
.offset
, 0);
184 t3_write_reg(adapter
, A_XGM_TX_CTRL
+ pi
->mac
.offset
, F_TXEN
);
185 t3_write_reg(adapter
, A_XGM_RX_CTRL
+ pi
->mac
.offset
, F_RXEN
);
188 static void disable_tx_fifo_drain(struct adapter
*adapter
,
189 struct port_info
*pi
)
191 t3_set_reg_field(adapter
, A_XGM_TXFIFO_CFG
+ pi
->mac
.offset
,
195 void t3_os_link_fault(struct adapter
*adap
, int port_id
, int state
)
197 struct net_device
*dev
= adap
->port
[port_id
];
198 struct port_info
*pi
= netdev_priv(dev
);
200 if (state
== netif_carrier_ok(dev
))
204 struct cmac
*mac
= &pi
->mac
;
206 netif_carrier_on(dev
);
208 disable_tx_fifo_drain(adap
, pi
);
210 /* Clear local faults */
211 t3_xgm_intr_disable(adap
, pi
->port_id
);
212 t3_read_reg(adap
, A_XGM_INT_STATUS
+
215 A_XGM_INT_CAUSE
+ pi
->mac
.offset
,
218 t3_set_reg_field(adap
,
221 F_XGM_INT
, F_XGM_INT
);
222 t3_xgm_intr_enable(adap
, pi
->port_id
);
224 t3_mac_enable(mac
, MAC_DIRECTION_TX
);
226 netif_carrier_off(dev
);
229 enable_tx_fifo_drain(adap
, pi
);
235 * t3_os_link_changed - handle link status changes
236 * @adapter: the adapter associated with the link change
237 * @port_id: the port index whose limk status has changed
238 * @link_stat: the new status of the link
239 * @speed: the new speed setting
240 * @duplex: the new duplex setting
241 * @pause: the new flow-control setting
243 * This is the OS-dependent handler for link status changes. The OS
244 * neutral handler takes care of most of the processing for these events,
245 * then calls this handler for any OS-specific processing.
247 void t3_os_link_changed(struct adapter
*adapter
, int port_id
, int link_stat
,
248 int speed
, int duplex
, int pause
)
250 struct net_device
*dev
= adapter
->port
[port_id
];
251 struct port_info
*pi
= netdev_priv(dev
);
252 struct cmac
*mac
= &pi
->mac
;
254 /* Skip changes from disabled ports. */
255 if (!netif_running(dev
))
258 if (link_stat
!= netif_carrier_ok(dev
)) {
260 disable_tx_fifo_drain(adapter
, pi
);
262 t3_mac_enable(mac
, MAC_DIRECTION_RX
);
264 /* Clear local faults */
265 t3_xgm_intr_disable(adapter
, pi
->port_id
);
266 t3_read_reg(adapter
, A_XGM_INT_STATUS
+
268 t3_write_reg(adapter
,
269 A_XGM_INT_CAUSE
+ pi
->mac
.offset
,
272 t3_set_reg_field(adapter
,
273 A_XGM_INT_ENABLE
+ pi
->mac
.offset
,
274 F_XGM_INT
, F_XGM_INT
);
275 t3_xgm_intr_enable(adapter
, pi
->port_id
);
277 netif_carrier_on(dev
);
279 netif_carrier_off(dev
);
281 t3_xgm_intr_disable(adapter
, pi
->port_id
);
282 t3_read_reg(adapter
, A_XGM_INT_STATUS
+ pi
->mac
.offset
);
283 t3_set_reg_field(adapter
,
284 A_XGM_INT_ENABLE
+ pi
->mac
.offset
,
288 pi
->phy
.ops
->power_down(&pi
->phy
, 1);
290 t3_read_reg(adapter
, A_XGM_INT_STATUS
+ pi
->mac
.offset
);
291 t3_mac_disable(mac
, MAC_DIRECTION_RX
);
292 t3_link_start(&pi
->phy
, mac
, &pi
->link_config
);
295 enable_tx_fifo_drain(adapter
, pi
);
303 * t3_os_phymod_changed - handle PHY module changes
304 * @phy: the PHY reporting the module change
305 * @mod_type: new module type
307 * This is the OS-dependent handler for PHY module changes. It is
308 * invoked when a PHY module is removed or inserted for any OS-specific
311 void t3_os_phymod_changed(struct adapter
*adap
, int port_id
)
313 static const char *mod_str
[] = {
314 NULL
, "SR", "LR", "LRM", "TWINAX", "TWINAX", "unknown"
317 const struct net_device
*dev
= adap
->port
[port_id
];
318 const struct port_info
*pi
= netdev_priv(dev
);
320 if (pi
->phy
.modtype
== phy_modtype_none
)
321 printk(KERN_INFO
"%s: PHY module unplugged\n", dev
->name
);
323 printk(KERN_INFO
"%s: %s PHY module inserted\n", dev
->name
,
324 mod_str
[pi
->phy
.modtype
]);
327 static void cxgb_set_rxmode(struct net_device
*dev
)
329 struct port_info
*pi
= netdev_priv(dev
);
331 t3_mac_set_rx_mode(&pi
->mac
, dev
);
335 * link_start - enable a port
336 * @dev: the device to enable
338 * Performs the MAC and PHY actions needed to enable a port.
340 static void link_start(struct net_device
*dev
)
342 struct port_info
*pi
= netdev_priv(dev
);
343 struct cmac
*mac
= &pi
->mac
;
346 t3_mac_set_num_ucast(mac
, MAX_MAC_IDX
);
347 t3_mac_set_mtu(mac
, dev
->mtu
);
348 t3_mac_set_address(mac
, LAN_MAC_IDX
, dev
->dev_addr
);
349 t3_mac_set_address(mac
, SAN_MAC_IDX
, pi
->iscsic
.mac_addr
);
350 t3_mac_set_rx_mode(mac
, dev
);
351 t3_link_start(&pi
->phy
, mac
, &pi
->link_config
);
352 t3_mac_enable(mac
, MAC_DIRECTION_RX
| MAC_DIRECTION_TX
);
355 static inline void cxgb_disable_msi(struct adapter
*adapter
)
357 if (adapter
->flags
& USING_MSIX
) {
358 pci_disable_msix(adapter
->pdev
);
359 adapter
->flags
&= ~USING_MSIX
;
360 } else if (adapter
->flags
& USING_MSI
) {
361 pci_disable_msi(adapter
->pdev
);
362 adapter
->flags
&= ~USING_MSI
;
367 * Interrupt handler for asynchronous events used with MSI-X.
369 static irqreturn_t
t3_async_intr_handler(int irq
, void *cookie
)
371 t3_slow_intr_handler(cookie
);
376 * Name the MSI-X interrupts.
378 static void name_msix_vecs(struct adapter
*adap
)
380 int i
, j
, msi_idx
= 1, n
= sizeof(adap
->msix_info
[0].desc
) - 1;
382 snprintf(adap
->msix_info
[0].desc
, n
, "%s", adap
->name
);
383 adap
->msix_info
[0].desc
[n
] = 0;
385 for_each_port(adap
, j
) {
386 struct net_device
*d
= adap
->port
[j
];
387 const struct port_info
*pi
= netdev_priv(d
);
389 for (i
= 0; i
< pi
->nqsets
; i
++, msi_idx
++) {
390 snprintf(adap
->msix_info
[msi_idx
].desc
, n
,
391 "%s-%d", d
->name
, pi
->first_qset
+ i
);
392 adap
->msix_info
[msi_idx
].desc
[n
] = 0;
397 static int request_msix_data_irqs(struct adapter
*adap
)
399 int i
, j
, err
, qidx
= 0;
401 for_each_port(adap
, i
) {
402 int nqsets
= adap2pinfo(adap
, i
)->nqsets
;
404 for (j
= 0; j
< nqsets
; ++j
) {
405 err
= request_irq(adap
->msix_info
[qidx
+ 1].vec
,
406 t3_intr_handler(adap
,
409 adap
->msix_info
[qidx
+ 1].desc
,
410 &adap
->sge
.qs
[qidx
]);
413 free_irq(adap
->msix_info
[qidx
+ 1].vec
,
414 &adap
->sge
.qs
[qidx
]);
423 static void free_irq_resources(struct adapter
*adapter
)
425 if (adapter
->flags
& USING_MSIX
) {
428 free_irq(adapter
->msix_info
[0].vec
, adapter
);
429 for_each_port(adapter
, i
)
430 n
+= adap2pinfo(adapter
, i
)->nqsets
;
432 for (i
= 0; i
< n
; ++i
)
433 free_irq(adapter
->msix_info
[i
+ 1].vec
,
434 &adapter
->sge
.qs
[i
]);
436 free_irq(adapter
->pdev
->irq
, adapter
);
439 static int await_mgmt_replies(struct adapter
*adap
, unsigned long init_cnt
,
444 while (adap
->sge
.qs
[0].rspq
.offload_pkts
< init_cnt
+ n
) {
452 static int init_tp_parity(struct adapter
*adap
)
456 struct cpl_set_tcb_field
*greq
;
457 unsigned long cnt
= adap
->sge
.qs
[0].rspq
.offload_pkts
;
459 t3_tp_set_offload_mode(adap
, 1);
461 for (i
= 0; i
< 16; i
++) {
462 struct cpl_smt_write_req
*req
;
464 skb
= alloc_skb(sizeof(*req
), GFP_KERNEL
);
466 skb
= adap
->nofail_skb
;
470 req
= (struct cpl_smt_write_req
*)__skb_put(skb
, sizeof(*req
));
471 memset(req
, 0, sizeof(*req
));
472 req
->wr
.wr_hi
= htonl(V_WR_OP(FW_WROPCODE_FORWARD
));
473 OPCODE_TID(req
) = htonl(MK_OPCODE_TID(CPL_SMT_WRITE_REQ
, i
));
474 req
->mtu_idx
= NMTUS
- 1;
476 t3_mgmt_tx(adap
, skb
);
477 if (skb
== adap
->nofail_skb
) {
478 await_mgmt_replies(adap
, cnt
, i
+ 1);
479 adap
->nofail_skb
= alloc_skb(sizeof(*greq
), GFP_KERNEL
);
480 if (!adap
->nofail_skb
)
485 for (i
= 0; i
< 2048; i
++) {
486 struct cpl_l2t_write_req
*req
;
488 skb
= alloc_skb(sizeof(*req
), GFP_KERNEL
);
490 skb
= adap
->nofail_skb
;
494 req
= (struct cpl_l2t_write_req
*)__skb_put(skb
, sizeof(*req
));
495 memset(req
, 0, sizeof(*req
));
496 req
->wr
.wr_hi
= htonl(V_WR_OP(FW_WROPCODE_FORWARD
));
497 OPCODE_TID(req
) = htonl(MK_OPCODE_TID(CPL_L2T_WRITE_REQ
, i
));
498 req
->params
= htonl(V_L2T_W_IDX(i
));
499 t3_mgmt_tx(adap
, skb
);
500 if (skb
== adap
->nofail_skb
) {
501 await_mgmt_replies(adap
, cnt
, 16 + i
+ 1);
502 adap
->nofail_skb
= alloc_skb(sizeof(*greq
), GFP_KERNEL
);
503 if (!adap
->nofail_skb
)
508 for (i
= 0; i
< 2048; i
++) {
509 struct cpl_rte_write_req
*req
;
511 skb
= alloc_skb(sizeof(*req
), GFP_KERNEL
);
513 skb
= adap
->nofail_skb
;
517 req
= (struct cpl_rte_write_req
*)__skb_put(skb
, sizeof(*req
));
518 memset(req
, 0, sizeof(*req
));
519 req
->wr
.wr_hi
= htonl(V_WR_OP(FW_WROPCODE_FORWARD
));
520 OPCODE_TID(req
) = htonl(MK_OPCODE_TID(CPL_RTE_WRITE_REQ
, i
));
521 req
->l2t_idx
= htonl(V_L2T_W_IDX(i
));
522 t3_mgmt_tx(adap
, skb
);
523 if (skb
== adap
->nofail_skb
) {
524 await_mgmt_replies(adap
, cnt
, 16 + 2048 + i
+ 1);
525 adap
->nofail_skb
= alloc_skb(sizeof(*greq
), GFP_KERNEL
);
526 if (!adap
->nofail_skb
)
531 skb
= alloc_skb(sizeof(*greq
), GFP_KERNEL
);
533 skb
= adap
->nofail_skb
;
537 greq
= (struct cpl_set_tcb_field
*)__skb_put(skb
, sizeof(*greq
));
538 memset(greq
, 0, sizeof(*greq
));
539 greq
->wr
.wr_hi
= htonl(V_WR_OP(FW_WROPCODE_FORWARD
));
540 OPCODE_TID(greq
) = htonl(MK_OPCODE_TID(CPL_SET_TCB_FIELD
, 0));
541 greq
->mask
= cpu_to_be64(1);
542 t3_mgmt_tx(adap
, skb
);
544 i
= await_mgmt_replies(adap
, cnt
, 16 + 2048 + 2048 + 1);
545 if (skb
== adap
->nofail_skb
) {
546 i
= await_mgmt_replies(adap
, cnt
, 16 + 2048 + 2048 + 1);
547 adap
->nofail_skb
= alloc_skb(sizeof(*greq
), GFP_KERNEL
);
550 t3_tp_set_offload_mode(adap
, 0);
554 t3_tp_set_offload_mode(adap
, 0);
559 * setup_rss - configure RSS
562 * Sets up RSS to distribute packets to multiple receive queues. We
563 * configure the RSS CPU lookup table to distribute to the number of HW
564 * receive queues, and the response queue lookup table to narrow that
565 * down to the response queues actually configured for each port.
566 * We always configure the RSS mapping for two ports since the mapping
567 * table has plenty of entries.
569 static void setup_rss(struct adapter
*adap
)
572 unsigned int nq0
= adap2pinfo(adap
, 0)->nqsets
;
573 unsigned int nq1
= adap
->port
[1] ? adap2pinfo(adap
, 1)->nqsets
: 1;
574 u8 cpus
[SGE_QSETS
+ 1];
575 u16 rspq_map
[RSS_TABLE_SIZE
];
577 for (i
= 0; i
< SGE_QSETS
; ++i
)
579 cpus
[SGE_QSETS
] = 0xff; /* terminator */
581 for (i
= 0; i
< RSS_TABLE_SIZE
/ 2; ++i
) {
582 rspq_map
[i
] = i
% nq0
;
583 rspq_map
[i
+ RSS_TABLE_SIZE
/ 2] = (i
% nq1
) + nq0
;
586 t3_config_rss(adap
, F_RQFEEDBACKENABLE
| F_TNLLKPEN
| F_TNLMAPEN
|
587 F_TNLPRTEN
| F_TNL2TUPEN
| F_TNL4TUPEN
|
588 V_RRCPLCPUSIZE(6) | F_HASHTOEPLITZ
, cpus
, rspq_map
);
591 static void ring_dbs(struct adapter
*adap
)
595 for (i
= 0; i
< SGE_QSETS
; i
++) {
596 struct sge_qset
*qs
= &adap
->sge
.qs
[i
];
599 for (j
= 0; j
< SGE_TXQ_PER_SET
; j
++)
600 t3_write_reg(adap
, A_SG_KDOORBELL
, F_SELEGRCNTX
| V_EGRCNTX(qs
->txq
[j
].cntxt_id
));
604 static void init_napi(struct adapter
*adap
)
608 for (i
= 0; i
< SGE_QSETS
; i
++) {
609 struct sge_qset
*qs
= &adap
->sge
.qs
[i
];
612 netif_napi_add(qs
->netdev
, &qs
->napi
, qs
->napi
.poll
,
617 * netif_napi_add() can be called only once per napi_struct because it
618 * adds each new napi_struct to a list. Be careful not to call it a
619 * second time, e.g., during EEH recovery, by making a note of it.
621 adap
->flags
|= NAPI_INIT
;
625 * Wait until all NAPI handlers are descheduled. This includes the handlers of
626 * both netdevices representing interfaces and the dummy ones for the extra
629 static void quiesce_rx(struct adapter
*adap
)
633 for (i
= 0; i
< SGE_QSETS
; i
++)
634 if (adap
->sge
.qs
[i
].adap
)
635 napi_disable(&adap
->sge
.qs
[i
].napi
);
638 static void enable_all_napi(struct adapter
*adap
)
641 for (i
= 0; i
< SGE_QSETS
; i
++)
642 if (adap
->sge
.qs
[i
].adap
)
643 napi_enable(&adap
->sge
.qs
[i
].napi
);
647 * setup_sge_qsets - configure SGE Tx/Rx/response queues
650 * Determines how many sets of SGE queues to use and initializes them.
651 * We support multiple queue sets per port if we have MSI-X, otherwise
652 * just one queue set per port.
654 static int setup_sge_qsets(struct adapter
*adap
)
656 int i
, j
, err
, irq_idx
= 0, qset_idx
= 0;
657 unsigned int ntxq
= SGE_TXQ_PER_SET
;
659 if (adap
->params
.rev
> 0 && !(adap
->flags
& USING_MSI
))
662 for_each_port(adap
, i
) {
663 struct net_device
*dev
= adap
->port
[i
];
664 struct port_info
*pi
= netdev_priv(dev
);
666 pi
->qs
= &adap
->sge
.qs
[pi
->first_qset
];
667 for (j
= 0; j
< pi
->nqsets
; ++j
, ++qset_idx
) {
668 err
= t3_sge_alloc_qset(adap
, qset_idx
, 1,
669 (adap
->flags
& USING_MSIX
) ? qset_idx
+ 1 :
671 &adap
->params
.sge
.qset
[qset_idx
], ntxq
, dev
,
672 netdev_get_tx_queue(dev
, j
));
674 t3_free_sge_resources(adap
);
683 static ssize_t
attr_show(struct device
*d
, char *buf
,
684 ssize_t(*format
) (struct net_device
*, char *))
688 /* Synchronize with ioctls that may shut down the device */
690 len
= (*format
) (to_net_dev(d
), buf
);
695 static ssize_t
attr_store(struct device
*d
,
696 const char *buf
, size_t len
,
697 ssize_t(*set
) (struct net_device
*, unsigned int),
698 unsigned int min_val
, unsigned int max_val
)
704 if (!capable(CAP_NET_ADMIN
))
707 val
= simple_strtoul(buf
, &endp
, 0);
708 if (endp
== buf
|| val
< min_val
|| val
> max_val
)
712 ret
= (*set
) (to_net_dev(d
), val
);
719 #define CXGB3_SHOW(name, val_expr) \
720 static ssize_t format_##name(struct net_device *dev, char *buf) \
722 struct port_info *pi = netdev_priv(dev); \
723 struct adapter *adap = pi->adapter; \
724 return sprintf(buf, "%u\n", val_expr); \
726 static ssize_t show_##name(struct device *d, struct device_attribute *attr, \
729 return attr_show(d, buf, format_##name); \
732 static ssize_t
set_nfilters(struct net_device
*dev
, unsigned int val
)
734 struct port_info
*pi
= netdev_priv(dev
);
735 struct adapter
*adap
= pi
->adapter
;
736 int min_tids
= is_offload(adap
) ? MC5_MIN_TIDS
: 0;
738 if (adap
->flags
& FULL_INIT_DONE
)
740 if (val
&& adap
->params
.rev
== 0)
742 if (val
> t3_mc5_size(&adap
->mc5
) - adap
->params
.mc5
.nservers
-
745 adap
->params
.mc5
.nfilters
= val
;
749 static ssize_t
store_nfilters(struct device
*d
, struct device_attribute
*attr
,
750 const char *buf
, size_t len
)
752 return attr_store(d
, buf
, len
, set_nfilters
, 0, ~0);
755 static ssize_t
set_nservers(struct net_device
*dev
, unsigned int val
)
757 struct port_info
*pi
= netdev_priv(dev
);
758 struct adapter
*adap
= pi
->adapter
;
760 if (adap
->flags
& FULL_INIT_DONE
)
762 if (val
> t3_mc5_size(&adap
->mc5
) - adap
->params
.mc5
.nfilters
-
765 adap
->params
.mc5
.nservers
= val
;
769 static ssize_t
store_nservers(struct device
*d
, struct device_attribute
*attr
,
770 const char *buf
, size_t len
)
772 return attr_store(d
, buf
, len
, set_nservers
, 0, ~0);
775 #define CXGB3_ATTR_R(name, val_expr) \
776 CXGB3_SHOW(name, val_expr) \
777 static DEVICE_ATTR(name, S_IRUGO, show_##name, NULL)
779 #define CXGB3_ATTR_RW(name, val_expr, store_method) \
780 CXGB3_SHOW(name, val_expr) \
781 static DEVICE_ATTR(name, S_IRUGO | S_IWUSR, show_##name, store_method)
783 CXGB3_ATTR_R(cam_size
, t3_mc5_size(&adap
->mc5
));
784 CXGB3_ATTR_RW(nfilters
, adap
->params
.mc5
.nfilters
, store_nfilters
);
785 CXGB3_ATTR_RW(nservers
, adap
->params
.mc5
.nservers
, store_nservers
);
787 static struct attribute
*cxgb3_attrs
[] = {
788 &dev_attr_cam_size
.attr
,
789 &dev_attr_nfilters
.attr
,
790 &dev_attr_nservers
.attr
,
794 static struct attribute_group cxgb3_attr_group
= {.attrs
= cxgb3_attrs
};
796 static ssize_t
tm_attr_show(struct device
*d
,
797 char *buf
, int sched
)
799 struct port_info
*pi
= netdev_priv(to_net_dev(d
));
800 struct adapter
*adap
= pi
->adapter
;
801 unsigned int v
, addr
, bpt
, cpt
;
804 addr
= A_TP_TX_MOD_Q1_Q0_RATE_LIMIT
- sched
/ 2;
806 t3_write_reg(adap
, A_TP_TM_PIO_ADDR
, addr
);
807 v
= t3_read_reg(adap
, A_TP_TM_PIO_DATA
);
810 bpt
= (v
>> 8) & 0xff;
813 len
= sprintf(buf
, "disabled\n");
815 v
= (adap
->params
.vpd
.cclk
* 1000) / cpt
;
816 len
= sprintf(buf
, "%u Kbps\n", (v
* bpt
) / 125);
822 static ssize_t
tm_attr_store(struct device
*d
,
823 const char *buf
, size_t len
, int sched
)
825 struct port_info
*pi
= netdev_priv(to_net_dev(d
));
826 struct adapter
*adap
= pi
->adapter
;
831 if (!capable(CAP_NET_ADMIN
))
834 val
= simple_strtoul(buf
, &endp
, 0);
835 if (endp
== buf
|| val
> 10000000)
839 ret
= t3_config_sched(adap
, val
, sched
);
846 #define TM_ATTR(name, sched) \
847 static ssize_t show_##name(struct device *d, struct device_attribute *attr, \
850 return tm_attr_show(d, buf, sched); \
852 static ssize_t store_##name(struct device *d, struct device_attribute *attr, \
853 const char *buf, size_t len) \
855 return tm_attr_store(d, buf, len, sched); \
857 static DEVICE_ATTR(name, S_IRUGO | S_IWUSR, show_##name, store_##name)
868 static struct attribute
*offload_attrs
[] = {
869 &dev_attr_sched0
.attr
,
870 &dev_attr_sched1
.attr
,
871 &dev_attr_sched2
.attr
,
872 &dev_attr_sched3
.attr
,
873 &dev_attr_sched4
.attr
,
874 &dev_attr_sched5
.attr
,
875 &dev_attr_sched6
.attr
,
876 &dev_attr_sched7
.attr
,
880 static struct attribute_group offload_attr_group
= {.attrs
= offload_attrs
};
883 * Sends an sk_buff to an offload queue driver
884 * after dealing with any active network taps.
886 static inline int offload_tx(struct t3cdev
*tdev
, struct sk_buff
*skb
)
891 ret
= t3_offload_tx(tdev
, skb
);
896 static int write_smt_entry(struct adapter
*adapter
, int idx
)
898 struct cpl_smt_write_req
*req
;
899 struct port_info
*pi
= netdev_priv(adapter
->port
[idx
]);
900 struct sk_buff
*skb
= alloc_skb(sizeof(*req
), GFP_KERNEL
);
905 req
= (struct cpl_smt_write_req
*)__skb_put(skb
, sizeof(*req
));
906 req
->wr
.wr_hi
= htonl(V_WR_OP(FW_WROPCODE_FORWARD
));
907 OPCODE_TID(req
) = htonl(MK_OPCODE_TID(CPL_SMT_WRITE_REQ
, idx
));
908 req
->mtu_idx
= NMTUS
- 1; /* should be 0 but there's a T3 bug */
910 memcpy(req
->src_mac0
, adapter
->port
[idx
]->dev_addr
, ETH_ALEN
);
911 memcpy(req
->src_mac1
, pi
->iscsic
.mac_addr
, ETH_ALEN
);
913 offload_tx(&adapter
->tdev
, skb
);
917 static int init_smt(struct adapter
*adapter
)
921 for_each_port(adapter
, i
)
922 write_smt_entry(adapter
, i
);
926 static void init_port_mtus(struct adapter
*adapter
)
928 unsigned int mtus
= adapter
->port
[0]->mtu
;
930 if (adapter
->port
[1])
931 mtus
|= adapter
->port
[1]->mtu
<< 16;
932 t3_write_reg(adapter
, A_TP_MTU_PORT_TABLE
, mtus
);
935 static int send_pktsched_cmd(struct adapter
*adap
, int sched
, int qidx
, int lo
,
939 struct mngt_pktsched_wr
*req
;
942 skb
= alloc_skb(sizeof(*req
), GFP_KERNEL
);
944 skb
= adap
->nofail_skb
;
948 req
= (struct mngt_pktsched_wr
*)skb_put(skb
, sizeof(*req
));
949 req
->wr_hi
= htonl(V_WR_OP(FW_WROPCODE_MNGT
));
950 req
->mngt_opcode
= FW_MNGTOPCODE_PKTSCHED_SET
;
956 ret
= t3_mgmt_tx(adap
, skb
);
957 if (skb
== adap
->nofail_skb
) {
958 adap
->nofail_skb
= alloc_skb(sizeof(struct cpl_set_tcb_field
),
960 if (!adap
->nofail_skb
)
967 static int bind_qsets(struct adapter
*adap
)
971 for_each_port(adap
, i
) {
972 const struct port_info
*pi
= adap2pinfo(adap
, i
);
974 for (j
= 0; j
< pi
->nqsets
; ++j
) {
975 int ret
= send_pktsched_cmd(adap
, 1,
976 pi
->first_qset
+ j
, -1,
986 #define FW_VERSION __stringify(FW_VERSION_MAJOR) "." \
987 __stringify(FW_VERSION_MINOR) "." __stringify(FW_VERSION_MICRO)
988 #define FW_FNAME "cxgb3/t3fw-" FW_VERSION ".bin"
989 #define TPSRAM_VERSION __stringify(TP_VERSION_MAJOR) "." \
990 __stringify(TP_VERSION_MINOR) "." __stringify(TP_VERSION_MICRO)
991 #define TPSRAM_NAME "cxgb3/t3%c_psram-" TPSRAM_VERSION ".bin"
992 #define AEL2005_OPT_EDC_NAME "cxgb3/ael2005_opt_edc.bin"
993 #define AEL2005_TWX_EDC_NAME "cxgb3/ael2005_twx_edc.bin"
994 #define AEL2020_TWX_EDC_NAME "cxgb3/ael2020_twx_edc.bin"
995 MODULE_FIRMWARE(FW_FNAME
);
996 MODULE_FIRMWARE("cxgb3/t3b_psram-" TPSRAM_VERSION
".bin");
997 MODULE_FIRMWARE("cxgb3/t3c_psram-" TPSRAM_VERSION
".bin");
998 MODULE_FIRMWARE(AEL2005_OPT_EDC_NAME
);
999 MODULE_FIRMWARE(AEL2005_TWX_EDC_NAME
);
1000 MODULE_FIRMWARE(AEL2020_TWX_EDC_NAME
);
1002 static inline const char *get_edc_fw_name(int edc_idx
)
1004 const char *fw_name
= NULL
;
1007 case EDC_OPT_AEL2005
:
1008 fw_name
= AEL2005_OPT_EDC_NAME
;
1010 case EDC_TWX_AEL2005
:
1011 fw_name
= AEL2005_TWX_EDC_NAME
;
1013 case EDC_TWX_AEL2020
:
1014 fw_name
= AEL2020_TWX_EDC_NAME
;
1020 int t3_get_edc_fw(struct cphy
*phy
, int edc_idx
, int size
)
1022 struct adapter
*adapter
= phy
->adapter
;
1023 const struct firmware
*fw
;
1027 u16
*cache
= phy
->phy_cache
;
1030 snprintf(buf
, sizeof(buf
), get_edc_fw_name(edc_idx
));
1032 ret
= request_firmware(&fw
, buf
, &adapter
->pdev
->dev
);
1034 dev_err(&adapter
->pdev
->dev
,
1035 "could not upgrade firmware: unable to load %s\n",
1040 /* check size, take checksum in account */
1041 if (fw
->size
> size
+ 4) {
1042 CH_ERR(adapter
, "firmware image too large %u, expected %d\n",
1043 (unsigned int)fw
->size
, size
+ 4);
1047 /* compute checksum */
1048 p
= (const __be32
*)fw
->data
;
1049 for (csum
= 0, i
= 0; i
< fw
->size
/ sizeof(csum
); i
++)
1050 csum
+= ntohl(p
[i
]);
1052 if (csum
!= 0xffffffff) {
1053 CH_ERR(adapter
, "corrupted firmware image, checksum %u\n",
1058 for (i
= 0; i
< size
/ 4 ; i
++) {
1059 *cache
++ = (be32_to_cpu(p
[i
]) & 0xffff0000) >> 16;
1060 *cache
++ = be32_to_cpu(p
[i
]) & 0xffff;
1063 release_firmware(fw
);
1068 static int upgrade_fw(struct adapter
*adap
)
1071 const struct firmware
*fw
;
1072 struct device
*dev
= &adap
->pdev
->dev
;
1074 ret
= request_firmware(&fw
, FW_FNAME
, dev
);
1076 dev_err(dev
, "could not upgrade firmware: unable to load %s\n",
1080 ret
= t3_load_fw(adap
, fw
->data
, fw
->size
);
1081 release_firmware(fw
);
1084 dev_info(dev
, "successful upgrade to firmware %d.%d.%d\n",
1085 FW_VERSION_MAJOR
, FW_VERSION_MINOR
, FW_VERSION_MICRO
);
1087 dev_err(dev
, "failed to upgrade to firmware %d.%d.%d\n",
1088 FW_VERSION_MAJOR
, FW_VERSION_MINOR
, FW_VERSION_MICRO
);
1093 static inline char t3rev2char(struct adapter
*adapter
)
1097 switch(adapter
->params
.rev
) {
1109 static int update_tpsram(struct adapter
*adap
)
1111 const struct firmware
*tpsram
;
1113 struct device
*dev
= &adap
->pdev
->dev
;
1117 rev
= t3rev2char(adap
);
1121 snprintf(buf
, sizeof(buf
), TPSRAM_NAME
, rev
);
1123 ret
= request_firmware(&tpsram
, buf
, dev
);
1125 dev_err(dev
, "could not load TP SRAM: unable to load %s\n",
1130 ret
= t3_check_tpsram(adap
, tpsram
->data
, tpsram
->size
);
1132 goto release_tpsram
;
1134 ret
= t3_set_proto_sram(adap
, tpsram
->data
);
1137 "successful update of protocol engine "
1139 TP_VERSION_MAJOR
, TP_VERSION_MINOR
, TP_VERSION_MICRO
);
1141 dev_err(dev
, "failed to update of protocol engine %d.%d.%d\n",
1142 TP_VERSION_MAJOR
, TP_VERSION_MINOR
, TP_VERSION_MICRO
);
1144 dev_err(dev
, "loading protocol SRAM failed\n");
1147 release_firmware(tpsram
);
1153 * cxgb_up - enable the adapter
1154 * @adapter: adapter being enabled
1156 * Called when the first port is enabled, this function performs the
1157 * actions necessary to make an adapter operational, such as completing
1158 * the initialization of HW modules, and enabling interrupts.
1160 * Must be called with the rtnl lock held.
1162 static int cxgb_up(struct adapter
*adap
)
1166 if (!(adap
->flags
& FULL_INIT_DONE
)) {
1167 err
= t3_check_fw_version(adap
);
1168 if (err
== -EINVAL
) {
1169 err
= upgrade_fw(adap
);
1170 CH_WARN(adap
, "FW upgrade to %d.%d.%d %s\n",
1171 FW_VERSION_MAJOR
, FW_VERSION_MINOR
,
1172 FW_VERSION_MICRO
, err
? "failed" : "succeeded");
1175 err
= t3_check_tpsram_version(adap
);
1176 if (err
== -EINVAL
) {
1177 err
= update_tpsram(adap
);
1178 CH_WARN(adap
, "TP upgrade to %d.%d.%d %s\n",
1179 TP_VERSION_MAJOR
, TP_VERSION_MINOR
,
1180 TP_VERSION_MICRO
, err
? "failed" : "succeeded");
1184 * Clear interrupts now to catch errors if t3_init_hw fails.
1185 * We clear them again later as initialization may trigger
1186 * conditions that can interrupt.
1188 t3_intr_clear(adap
);
1190 err
= t3_init_hw(adap
, 0);
1194 t3_set_reg_field(adap
, A_TP_PARA_REG5
, 0, F_RXDDPOFFINIT
);
1195 t3_write_reg(adap
, A_ULPRX_TDDP_PSZ
, V_HPZ0(PAGE_SHIFT
- 12));
1197 err
= setup_sge_qsets(adap
);
1202 if (!(adap
->flags
& NAPI_INIT
))
1205 t3_start_sge_timers(adap
);
1206 adap
->flags
|= FULL_INIT_DONE
;
1209 t3_intr_clear(adap
);
1211 if (adap
->flags
& USING_MSIX
) {
1212 name_msix_vecs(adap
);
1213 err
= request_irq(adap
->msix_info
[0].vec
,
1214 t3_async_intr_handler
, 0,
1215 adap
->msix_info
[0].desc
, adap
);
1219 err
= request_msix_data_irqs(adap
);
1221 free_irq(adap
->msix_info
[0].vec
, adap
);
1224 } else if ((err
= request_irq(adap
->pdev
->irq
,
1225 t3_intr_handler(adap
,
1226 adap
->sge
.qs
[0].rspq
.
1228 (adap
->flags
& USING_MSI
) ?
1233 enable_all_napi(adap
);
1235 t3_intr_enable(adap
);
1237 if (adap
->params
.rev
>= T3_REV_C
&& !(adap
->flags
& TP_PARITY_INIT
) &&
1238 is_offload(adap
) && init_tp_parity(adap
) == 0)
1239 adap
->flags
|= TP_PARITY_INIT
;
1241 if (adap
->flags
& TP_PARITY_INIT
) {
1242 t3_write_reg(adap
, A_TP_INT_CAUSE
,
1243 F_CMCACHEPERR
| F_ARPLUTPERR
);
1244 t3_write_reg(adap
, A_TP_INT_ENABLE
, 0x7fbfffff);
1247 if (!(adap
->flags
& QUEUES_BOUND
)) {
1248 int ret
= bind_qsets(adap
);
1251 CH_ERR(adap
, "failed to bind qsets, err %d\n", ret
);
1252 t3_intr_disable(adap
);
1253 free_irq_resources(adap
);
1257 adap
->flags
|= QUEUES_BOUND
;
1263 CH_ERR(adap
, "request_irq failed, err %d\n", err
);
1268 * Release resources when all the ports and offloading have been stopped.
1270 static void cxgb_down(struct adapter
*adapter
, int on_wq
)
1272 t3_sge_stop(adapter
);
1273 spin_lock_irq(&adapter
->work_lock
); /* sync with PHY intr task */
1274 t3_intr_disable(adapter
);
1275 spin_unlock_irq(&adapter
->work_lock
);
1277 free_irq_resources(adapter
);
1278 quiesce_rx(adapter
);
1279 t3_sge_stop(adapter
);
1281 flush_workqueue(cxgb3_wq
);/* wait for external IRQ handler */
1284 static void schedule_chk_task(struct adapter
*adap
)
1288 timeo
= adap
->params
.linkpoll_period
?
1289 (HZ
* adap
->params
.linkpoll_period
) / 10 :
1290 adap
->params
.stats_update_period
* HZ
;
1292 queue_delayed_work(cxgb3_wq
, &adap
->adap_check_task
, timeo
);
1295 static int offload_open(struct net_device
*dev
)
1297 struct port_info
*pi
= netdev_priv(dev
);
1298 struct adapter
*adapter
= pi
->adapter
;
1299 struct t3cdev
*tdev
= dev2t3cdev(dev
);
1300 int adap_up
= adapter
->open_device_map
& PORT_MASK
;
1303 if (test_and_set_bit(OFFLOAD_DEVMAP_BIT
, &adapter
->open_device_map
))
1306 if (!adap_up
&& (err
= cxgb_up(adapter
)) < 0)
1309 t3_tp_set_offload_mode(adapter
, 1);
1310 tdev
->lldev
= adapter
->port
[0];
1311 err
= cxgb3_offload_activate(adapter
);
1315 init_port_mtus(adapter
);
1316 t3_load_mtus(adapter
, adapter
->params
.mtus
, adapter
->params
.a_wnd
,
1317 adapter
->params
.b_wnd
,
1318 adapter
->params
.rev
== 0 ?
1319 adapter
->port
[0]->mtu
: 0xffff);
1322 if (sysfs_create_group(&tdev
->lldev
->dev
.kobj
, &offload_attr_group
))
1323 dev_dbg(&dev
->dev
, "cannot create sysfs group\n");
1325 /* Call back all registered clients */
1326 cxgb3_add_clients(tdev
);
1329 /* restore them in case the offload module has changed them */
1331 t3_tp_set_offload_mode(adapter
, 0);
1332 clear_bit(OFFLOAD_DEVMAP_BIT
, &adapter
->open_device_map
);
1333 cxgb3_set_dummy_ops(tdev
);
1338 static int offload_close(struct t3cdev
*tdev
)
1340 struct adapter
*adapter
= tdev2adap(tdev
);
1341 struct t3c_data
*td
= T3C_DATA(tdev
);
1343 if (!test_bit(OFFLOAD_DEVMAP_BIT
, &adapter
->open_device_map
))
1346 /* Call back all registered clients */
1347 cxgb3_remove_clients(tdev
);
1349 sysfs_remove_group(&tdev
->lldev
->dev
.kobj
, &offload_attr_group
);
1351 /* Flush work scheduled while releasing TIDs */
1352 flush_work_sync(&td
->tid_release_task
);
1355 cxgb3_set_dummy_ops(tdev
);
1356 t3_tp_set_offload_mode(adapter
, 0);
1357 clear_bit(OFFLOAD_DEVMAP_BIT
, &adapter
->open_device_map
);
1359 if (!adapter
->open_device_map
)
1360 cxgb_down(adapter
, 0);
1362 cxgb3_offload_deactivate(adapter
);
1366 static int cxgb_open(struct net_device
*dev
)
1368 struct port_info
*pi
= netdev_priv(dev
);
1369 struct adapter
*adapter
= pi
->adapter
;
1370 int other_ports
= adapter
->open_device_map
& PORT_MASK
;
1373 if (!adapter
->open_device_map
&& (err
= cxgb_up(adapter
)) < 0)
1376 set_bit(pi
->port_id
, &adapter
->open_device_map
);
1377 if (is_offload(adapter
) && !ofld_disable
) {
1378 err
= offload_open(dev
);
1381 "Could not initialize offload capabilities\n");
1384 netif_set_real_num_tx_queues(dev
, pi
->nqsets
);
1385 err
= netif_set_real_num_rx_queues(dev
, pi
->nqsets
);
1389 t3_port_intr_enable(adapter
, pi
->port_id
);
1390 netif_tx_start_all_queues(dev
);
1392 schedule_chk_task(adapter
);
1394 cxgb3_event_notify(&adapter
->tdev
, OFFLOAD_PORT_UP
, pi
->port_id
);
1398 static int __cxgb_close(struct net_device
*dev
, int on_wq
)
1400 struct port_info
*pi
= netdev_priv(dev
);
1401 struct adapter
*adapter
= pi
->adapter
;
1404 if (!adapter
->open_device_map
)
1407 /* Stop link fault interrupts */
1408 t3_xgm_intr_disable(adapter
, pi
->port_id
);
1409 t3_read_reg(adapter
, A_XGM_INT_STATUS
+ pi
->mac
.offset
);
1411 t3_port_intr_disable(adapter
, pi
->port_id
);
1412 netif_tx_stop_all_queues(dev
);
1413 pi
->phy
.ops
->power_down(&pi
->phy
, 1);
1414 netif_carrier_off(dev
);
1415 t3_mac_disable(&pi
->mac
, MAC_DIRECTION_TX
| MAC_DIRECTION_RX
);
1417 spin_lock_irq(&adapter
->work_lock
); /* sync with update task */
1418 clear_bit(pi
->port_id
, &adapter
->open_device_map
);
1419 spin_unlock_irq(&adapter
->work_lock
);
1421 if (!(adapter
->open_device_map
& PORT_MASK
))
1422 cancel_delayed_work_sync(&adapter
->adap_check_task
);
1424 if (!adapter
->open_device_map
)
1425 cxgb_down(adapter
, on_wq
);
1427 cxgb3_event_notify(&adapter
->tdev
, OFFLOAD_PORT_DOWN
, pi
->port_id
);
1431 static int cxgb_close(struct net_device
*dev
)
1433 return __cxgb_close(dev
, 0);
1436 static struct net_device_stats
*cxgb_get_stats(struct net_device
*dev
)
1438 struct port_info
*pi
= netdev_priv(dev
);
1439 struct adapter
*adapter
= pi
->adapter
;
1440 struct net_device_stats
*ns
= &pi
->netstats
;
1441 const struct mac_stats
*pstats
;
1443 spin_lock(&adapter
->stats_lock
);
1444 pstats
= t3_mac_update_stats(&pi
->mac
);
1445 spin_unlock(&adapter
->stats_lock
);
1447 ns
->tx_bytes
= pstats
->tx_octets
;
1448 ns
->tx_packets
= pstats
->tx_frames
;
1449 ns
->rx_bytes
= pstats
->rx_octets
;
1450 ns
->rx_packets
= pstats
->rx_frames
;
1451 ns
->multicast
= pstats
->rx_mcast_frames
;
1453 ns
->tx_errors
= pstats
->tx_underrun
;
1454 ns
->rx_errors
= pstats
->rx_symbol_errs
+ pstats
->rx_fcs_errs
+
1455 pstats
->rx_too_long
+ pstats
->rx_jabber
+ pstats
->rx_short
+
1456 pstats
->rx_fifo_ovfl
;
1458 /* detailed rx_errors */
1459 ns
->rx_length_errors
= pstats
->rx_jabber
+ pstats
->rx_too_long
;
1460 ns
->rx_over_errors
= 0;
1461 ns
->rx_crc_errors
= pstats
->rx_fcs_errs
;
1462 ns
->rx_frame_errors
= pstats
->rx_symbol_errs
;
1463 ns
->rx_fifo_errors
= pstats
->rx_fifo_ovfl
;
1464 ns
->rx_missed_errors
= pstats
->rx_cong_drops
;
1466 /* detailed tx_errors */
1467 ns
->tx_aborted_errors
= 0;
1468 ns
->tx_carrier_errors
= 0;
1469 ns
->tx_fifo_errors
= pstats
->tx_underrun
;
1470 ns
->tx_heartbeat_errors
= 0;
1471 ns
->tx_window_errors
= 0;
1475 static u32
get_msglevel(struct net_device
*dev
)
1477 struct port_info
*pi
= netdev_priv(dev
);
1478 struct adapter
*adapter
= pi
->adapter
;
1480 return adapter
->msg_enable
;
1483 static void set_msglevel(struct net_device
*dev
, u32 val
)
1485 struct port_info
*pi
= netdev_priv(dev
);
1486 struct adapter
*adapter
= pi
->adapter
;
1488 adapter
->msg_enable
= val
;
1491 static char stats_strings
[][ETH_GSTRING_LEN
] = {
1494 "TxMulticastFramesOK",
1495 "TxBroadcastFramesOK",
1502 "TxFrames128To255 ",
1503 "TxFrames256To511 ",
1504 "TxFrames512To1023 ",
1505 "TxFrames1024To1518 ",
1506 "TxFrames1519ToMax ",
1510 "RxMulticastFramesOK",
1511 "RxBroadcastFramesOK",
1522 "RxFrames128To255 ",
1523 "RxFrames256To511 ",
1524 "RxFrames512To1023 ",
1525 "RxFrames1024To1518 ",
1526 "RxFrames1519ToMax ",
1539 "CheckTXEnToggled ",
1545 static int get_sset_count(struct net_device
*dev
, int sset
)
1549 return ARRAY_SIZE(stats_strings
);
1555 #define T3_REGMAP_SIZE (3 * 1024)
1557 static int get_regs_len(struct net_device
*dev
)
1559 return T3_REGMAP_SIZE
;
1562 static int get_eeprom_len(struct net_device
*dev
)
1567 static void get_drvinfo(struct net_device
*dev
, struct ethtool_drvinfo
*info
)
1569 struct port_info
*pi
= netdev_priv(dev
);
1570 struct adapter
*adapter
= pi
->adapter
;
1574 spin_lock(&adapter
->stats_lock
);
1575 t3_get_fw_version(adapter
, &fw_vers
);
1576 t3_get_tp_version(adapter
, &tp_vers
);
1577 spin_unlock(&adapter
->stats_lock
);
1579 strcpy(info
->driver
, DRV_NAME
);
1580 strcpy(info
->version
, DRV_VERSION
);
1581 strcpy(info
->bus_info
, pci_name(adapter
->pdev
));
1583 strcpy(info
->fw_version
, "N/A");
1585 snprintf(info
->fw_version
, sizeof(info
->fw_version
),
1586 "%s %u.%u.%u TP %u.%u.%u",
1587 G_FW_VERSION_TYPE(fw_vers
) ? "T" : "N",
1588 G_FW_VERSION_MAJOR(fw_vers
),
1589 G_FW_VERSION_MINOR(fw_vers
),
1590 G_FW_VERSION_MICRO(fw_vers
),
1591 G_TP_VERSION_MAJOR(tp_vers
),
1592 G_TP_VERSION_MINOR(tp_vers
),
1593 G_TP_VERSION_MICRO(tp_vers
));
1597 static void get_strings(struct net_device
*dev
, u32 stringset
, u8
* data
)
1599 if (stringset
== ETH_SS_STATS
)
1600 memcpy(data
, stats_strings
, sizeof(stats_strings
));
1603 static unsigned long collect_sge_port_stats(struct adapter
*adapter
,
1604 struct port_info
*p
, int idx
)
1607 unsigned long tot
= 0;
1609 for (i
= p
->first_qset
; i
< p
->first_qset
+ p
->nqsets
; ++i
)
1610 tot
+= adapter
->sge
.qs
[i
].port_stats
[idx
];
1614 static void get_stats(struct net_device
*dev
, struct ethtool_stats
*stats
,
1617 struct port_info
*pi
= netdev_priv(dev
);
1618 struct adapter
*adapter
= pi
->adapter
;
1619 const struct mac_stats
*s
;
1621 spin_lock(&adapter
->stats_lock
);
1622 s
= t3_mac_update_stats(&pi
->mac
);
1623 spin_unlock(&adapter
->stats_lock
);
1625 *data
++ = s
->tx_octets
;
1626 *data
++ = s
->tx_frames
;
1627 *data
++ = s
->tx_mcast_frames
;
1628 *data
++ = s
->tx_bcast_frames
;
1629 *data
++ = s
->tx_pause
;
1630 *data
++ = s
->tx_underrun
;
1631 *data
++ = s
->tx_fifo_urun
;
1633 *data
++ = s
->tx_frames_64
;
1634 *data
++ = s
->tx_frames_65_127
;
1635 *data
++ = s
->tx_frames_128_255
;
1636 *data
++ = s
->tx_frames_256_511
;
1637 *data
++ = s
->tx_frames_512_1023
;
1638 *data
++ = s
->tx_frames_1024_1518
;
1639 *data
++ = s
->tx_frames_1519_max
;
1641 *data
++ = s
->rx_octets
;
1642 *data
++ = s
->rx_frames
;
1643 *data
++ = s
->rx_mcast_frames
;
1644 *data
++ = s
->rx_bcast_frames
;
1645 *data
++ = s
->rx_pause
;
1646 *data
++ = s
->rx_fcs_errs
;
1647 *data
++ = s
->rx_symbol_errs
;
1648 *data
++ = s
->rx_short
;
1649 *data
++ = s
->rx_jabber
;
1650 *data
++ = s
->rx_too_long
;
1651 *data
++ = s
->rx_fifo_ovfl
;
1653 *data
++ = s
->rx_frames_64
;
1654 *data
++ = s
->rx_frames_65_127
;
1655 *data
++ = s
->rx_frames_128_255
;
1656 *data
++ = s
->rx_frames_256_511
;
1657 *data
++ = s
->rx_frames_512_1023
;
1658 *data
++ = s
->rx_frames_1024_1518
;
1659 *data
++ = s
->rx_frames_1519_max
;
1661 *data
++ = pi
->phy
.fifo_errors
;
1663 *data
++ = collect_sge_port_stats(adapter
, pi
, SGE_PSTAT_TSO
);
1664 *data
++ = collect_sge_port_stats(adapter
, pi
, SGE_PSTAT_VLANEX
);
1665 *data
++ = collect_sge_port_stats(adapter
, pi
, SGE_PSTAT_VLANINS
);
1666 *data
++ = collect_sge_port_stats(adapter
, pi
, SGE_PSTAT_TX_CSUM
);
1667 *data
++ = collect_sge_port_stats(adapter
, pi
, SGE_PSTAT_RX_CSUM_GOOD
);
1671 *data
++ = s
->rx_cong_drops
;
1673 *data
++ = s
->num_toggled
;
1674 *data
++ = s
->num_resets
;
1676 *data
++ = s
->link_faults
;
1679 static inline void reg_block_dump(struct adapter
*ap
, void *buf
,
1680 unsigned int start
, unsigned int end
)
1682 u32
*p
= buf
+ start
;
1684 for (; start
<= end
; start
+= sizeof(u32
))
1685 *p
++ = t3_read_reg(ap
, start
);
1688 static void get_regs(struct net_device
*dev
, struct ethtool_regs
*regs
,
1691 struct port_info
*pi
= netdev_priv(dev
);
1692 struct adapter
*ap
= pi
->adapter
;
1696 * bits 0..9: chip version
1697 * bits 10..15: chip revision
1698 * bit 31: set for PCIe cards
1700 regs
->version
= 3 | (ap
->params
.rev
<< 10) | (is_pcie(ap
) << 31);
1703 * We skip the MAC statistics registers because they are clear-on-read.
1704 * Also reading multi-register stats would need to synchronize with the
1705 * periodic mac stats accumulation. Hard to justify the complexity.
1707 memset(buf
, 0, T3_REGMAP_SIZE
);
1708 reg_block_dump(ap
, buf
, 0, A_SG_RSPQ_CREDIT_RETURN
);
1709 reg_block_dump(ap
, buf
, A_SG_HI_DRB_HI_THRSH
, A_ULPRX_PBL_ULIMIT
);
1710 reg_block_dump(ap
, buf
, A_ULPTX_CONFIG
, A_MPS_INT_CAUSE
);
1711 reg_block_dump(ap
, buf
, A_CPL_SWITCH_CNTRL
, A_CPL_MAP_TBL_DATA
);
1712 reg_block_dump(ap
, buf
, A_SMB_GLOBAL_TIME_CFG
, A_XGM_SERDES_STAT3
);
1713 reg_block_dump(ap
, buf
, A_XGM_SERDES_STATUS0
,
1714 XGM_REG(A_XGM_SERDES_STAT3
, 1));
1715 reg_block_dump(ap
, buf
, XGM_REG(A_XGM_SERDES_STATUS0
, 1),
1716 XGM_REG(A_XGM_RX_SPI4_SOP_EOP_CNT
, 1));
1719 static int restart_autoneg(struct net_device
*dev
)
1721 struct port_info
*p
= netdev_priv(dev
);
1723 if (!netif_running(dev
))
1725 if (p
->link_config
.autoneg
!= AUTONEG_ENABLE
)
1727 p
->phy
.ops
->autoneg_restart(&p
->phy
);
1731 static int set_phys_id(struct net_device
*dev
,
1732 enum ethtool_phys_id_state state
)
1734 struct port_info
*pi
= netdev_priv(dev
);
1735 struct adapter
*adapter
= pi
->adapter
;
1738 case ETHTOOL_ID_ACTIVE
:
1739 return 1; /* cycle on/off once per second */
1741 case ETHTOOL_ID_OFF
:
1742 t3_set_reg_field(adapter
, A_T3DBG_GPIO_EN
, F_GPIO0_OUT_VAL
, 0);
1746 case ETHTOOL_ID_INACTIVE
:
1747 t3_set_reg_field(adapter
, A_T3DBG_GPIO_EN
, F_GPIO0_OUT_VAL
,
1754 static int get_settings(struct net_device
*dev
, struct ethtool_cmd
*cmd
)
1756 struct port_info
*p
= netdev_priv(dev
);
1758 cmd
->supported
= p
->link_config
.supported
;
1759 cmd
->advertising
= p
->link_config
.advertising
;
1761 if (netif_carrier_ok(dev
)) {
1762 ethtool_cmd_speed_set(cmd
, p
->link_config
.speed
);
1763 cmd
->duplex
= p
->link_config
.duplex
;
1765 ethtool_cmd_speed_set(cmd
, -1);
1769 cmd
->port
= (cmd
->supported
& SUPPORTED_TP
) ? PORT_TP
: PORT_FIBRE
;
1770 cmd
->phy_address
= p
->phy
.mdio
.prtad
;
1771 cmd
->transceiver
= XCVR_EXTERNAL
;
1772 cmd
->autoneg
= p
->link_config
.autoneg
;
1778 static int speed_duplex_to_caps(int speed
, int duplex
)
1784 if (duplex
== DUPLEX_FULL
)
1785 cap
= SUPPORTED_10baseT_Full
;
1787 cap
= SUPPORTED_10baseT_Half
;
1790 if (duplex
== DUPLEX_FULL
)
1791 cap
= SUPPORTED_100baseT_Full
;
1793 cap
= SUPPORTED_100baseT_Half
;
1796 if (duplex
== DUPLEX_FULL
)
1797 cap
= SUPPORTED_1000baseT_Full
;
1799 cap
= SUPPORTED_1000baseT_Half
;
1802 if (duplex
== DUPLEX_FULL
)
1803 cap
= SUPPORTED_10000baseT_Full
;
1808 #define ADVERTISED_MASK (ADVERTISED_10baseT_Half | ADVERTISED_10baseT_Full | \
1809 ADVERTISED_100baseT_Half | ADVERTISED_100baseT_Full | \
1810 ADVERTISED_1000baseT_Half | ADVERTISED_1000baseT_Full | \
1811 ADVERTISED_10000baseT_Full)
1813 static int set_settings(struct net_device
*dev
, struct ethtool_cmd
*cmd
)
1815 struct port_info
*p
= netdev_priv(dev
);
1816 struct link_config
*lc
= &p
->link_config
;
1818 if (!(lc
->supported
& SUPPORTED_Autoneg
)) {
1820 * PHY offers a single speed/duplex. See if that's what's
1823 if (cmd
->autoneg
== AUTONEG_DISABLE
) {
1824 u32 speed
= ethtool_cmd_speed(cmd
);
1825 int cap
= speed_duplex_to_caps(speed
, cmd
->duplex
);
1826 if (lc
->supported
& cap
)
1832 if (cmd
->autoneg
== AUTONEG_DISABLE
) {
1833 u32 speed
= ethtool_cmd_speed(cmd
);
1834 int cap
= speed_duplex_to_caps(speed
, cmd
->duplex
);
1836 if (!(lc
->supported
& cap
) || (speed
== SPEED_1000
))
1838 lc
->requested_speed
= speed
;
1839 lc
->requested_duplex
= cmd
->duplex
;
1840 lc
->advertising
= 0;
1842 cmd
->advertising
&= ADVERTISED_MASK
;
1843 cmd
->advertising
&= lc
->supported
;
1844 if (!cmd
->advertising
)
1846 lc
->requested_speed
= SPEED_INVALID
;
1847 lc
->requested_duplex
= DUPLEX_INVALID
;
1848 lc
->advertising
= cmd
->advertising
| ADVERTISED_Autoneg
;
1850 lc
->autoneg
= cmd
->autoneg
;
1851 if (netif_running(dev
))
1852 t3_link_start(&p
->phy
, &p
->mac
, lc
);
1856 static void get_pauseparam(struct net_device
*dev
,
1857 struct ethtool_pauseparam
*epause
)
1859 struct port_info
*p
= netdev_priv(dev
);
1861 epause
->autoneg
= (p
->link_config
.requested_fc
& PAUSE_AUTONEG
) != 0;
1862 epause
->rx_pause
= (p
->link_config
.fc
& PAUSE_RX
) != 0;
1863 epause
->tx_pause
= (p
->link_config
.fc
& PAUSE_TX
) != 0;
1866 static int set_pauseparam(struct net_device
*dev
,
1867 struct ethtool_pauseparam
*epause
)
1869 struct port_info
*p
= netdev_priv(dev
);
1870 struct link_config
*lc
= &p
->link_config
;
1872 if (epause
->autoneg
== AUTONEG_DISABLE
)
1873 lc
->requested_fc
= 0;
1874 else if (lc
->supported
& SUPPORTED_Autoneg
)
1875 lc
->requested_fc
= PAUSE_AUTONEG
;
1879 if (epause
->rx_pause
)
1880 lc
->requested_fc
|= PAUSE_RX
;
1881 if (epause
->tx_pause
)
1882 lc
->requested_fc
|= PAUSE_TX
;
1883 if (lc
->autoneg
== AUTONEG_ENABLE
) {
1884 if (netif_running(dev
))
1885 t3_link_start(&p
->phy
, &p
->mac
, lc
);
1887 lc
->fc
= lc
->requested_fc
& (PAUSE_RX
| PAUSE_TX
);
1888 if (netif_running(dev
))
1889 t3_mac_set_speed_duplex_fc(&p
->mac
, -1, -1, lc
->fc
);
1894 static void get_sge_param(struct net_device
*dev
, struct ethtool_ringparam
*e
)
1896 struct port_info
*pi
= netdev_priv(dev
);
1897 struct adapter
*adapter
= pi
->adapter
;
1898 const struct qset_params
*q
= &adapter
->params
.sge
.qset
[pi
->first_qset
];
1900 e
->rx_max_pending
= MAX_RX_BUFFERS
;
1901 e
->rx_mini_max_pending
= 0;
1902 e
->rx_jumbo_max_pending
= MAX_RX_JUMBO_BUFFERS
;
1903 e
->tx_max_pending
= MAX_TXQ_ENTRIES
;
1905 e
->rx_pending
= q
->fl_size
;
1906 e
->rx_mini_pending
= q
->rspq_size
;
1907 e
->rx_jumbo_pending
= q
->jumbo_size
;
1908 e
->tx_pending
= q
->txq_size
[0];
1911 static int set_sge_param(struct net_device
*dev
, struct ethtool_ringparam
*e
)
1913 struct port_info
*pi
= netdev_priv(dev
);
1914 struct adapter
*adapter
= pi
->adapter
;
1915 struct qset_params
*q
;
1918 if (e
->rx_pending
> MAX_RX_BUFFERS
||
1919 e
->rx_jumbo_pending
> MAX_RX_JUMBO_BUFFERS
||
1920 e
->tx_pending
> MAX_TXQ_ENTRIES
||
1921 e
->rx_mini_pending
> MAX_RSPQ_ENTRIES
||
1922 e
->rx_mini_pending
< MIN_RSPQ_ENTRIES
||
1923 e
->rx_pending
< MIN_FL_ENTRIES
||
1924 e
->rx_jumbo_pending
< MIN_FL_ENTRIES
||
1925 e
->tx_pending
< adapter
->params
.nports
* MIN_TXQ_ENTRIES
)
1928 if (adapter
->flags
& FULL_INIT_DONE
)
1931 q
= &adapter
->params
.sge
.qset
[pi
->first_qset
];
1932 for (i
= 0; i
< pi
->nqsets
; ++i
, ++q
) {
1933 q
->rspq_size
= e
->rx_mini_pending
;
1934 q
->fl_size
= e
->rx_pending
;
1935 q
->jumbo_size
= e
->rx_jumbo_pending
;
1936 q
->txq_size
[0] = e
->tx_pending
;
1937 q
->txq_size
[1] = e
->tx_pending
;
1938 q
->txq_size
[2] = e
->tx_pending
;
1943 static int set_coalesce(struct net_device
*dev
, struct ethtool_coalesce
*c
)
1945 struct port_info
*pi
= netdev_priv(dev
);
1946 struct adapter
*adapter
= pi
->adapter
;
1947 struct qset_params
*qsp
;
1948 struct sge_qset
*qs
;
1951 if (c
->rx_coalesce_usecs
* 10 > M_NEWTIMER
)
1954 for (i
= 0; i
< pi
->nqsets
; i
++) {
1955 qsp
= &adapter
->params
.sge
.qset
[i
];
1956 qs
= &adapter
->sge
.qs
[i
];
1957 qsp
->coalesce_usecs
= c
->rx_coalesce_usecs
;
1958 t3_update_qset_coalesce(qs
, qsp
);
1964 static int get_coalesce(struct net_device
*dev
, struct ethtool_coalesce
*c
)
1966 struct port_info
*pi
= netdev_priv(dev
);
1967 struct adapter
*adapter
= pi
->adapter
;
1968 struct qset_params
*q
= adapter
->params
.sge
.qset
;
1970 c
->rx_coalesce_usecs
= q
->coalesce_usecs
;
1974 static int get_eeprom(struct net_device
*dev
, struct ethtool_eeprom
*e
,
1977 struct port_info
*pi
= netdev_priv(dev
);
1978 struct adapter
*adapter
= pi
->adapter
;
1981 u8
*buf
= kmalloc(EEPROMSIZE
, GFP_KERNEL
);
1985 e
->magic
= EEPROM_MAGIC
;
1986 for (i
= e
->offset
& ~3; !err
&& i
< e
->offset
+ e
->len
; i
+= 4)
1987 err
= t3_seeprom_read(adapter
, i
, (__le32
*) & buf
[i
]);
1990 memcpy(data
, buf
+ e
->offset
, e
->len
);
1995 static int set_eeprom(struct net_device
*dev
, struct ethtool_eeprom
*eeprom
,
1998 struct port_info
*pi
= netdev_priv(dev
);
1999 struct adapter
*adapter
= pi
->adapter
;
2000 u32 aligned_offset
, aligned_len
;
2005 if (eeprom
->magic
!= EEPROM_MAGIC
)
2008 aligned_offset
= eeprom
->offset
& ~3;
2009 aligned_len
= (eeprom
->len
+ (eeprom
->offset
& 3) + 3) & ~3;
2011 if (aligned_offset
!= eeprom
->offset
|| aligned_len
!= eeprom
->len
) {
2012 buf
= kmalloc(aligned_len
, GFP_KERNEL
);
2015 err
= t3_seeprom_read(adapter
, aligned_offset
, (__le32
*) buf
);
2016 if (!err
&& aligned_len
> 4)
2017 err
= t3_seeprom_read(adapter
,
2018 aligned_offset
+ aligned_len
- 4,
2019 (__le32
*) & buf
[aligned_len
- 4]);
2022 memcpy(buf
+ (eeprom
->offset
& 3), data
, eeprom
->len
);
2026 err
= t3_seeprom_wp(adapter
, 0);
2030 for (p
= (__le32
*) buf
; !err
&& aligned_len
; aligned_len
-= 4, p
++) {
2031 err
= t3_seeprom_write(adapter
, aligned_offset
, *p
);
2032 aligned_offset
+= 4;
2036 err
= t3_seeprom_wp(adapter
, 1);
2043 static void get_wol(struct net_device
*dev
, struct ethtool_wolinfo
*wol
)
2047 memset(&wol
->sopass
, 0, sizeof(wol
->sopass
));
2050 static const struct ethtool_ops cxgb_ethtool_ops
= {
2051 .get_settings
= get_settings
,
2052 .set_settings
= set_settings
,
2053 .get_drvinfo
= get_drvinfo
,
2054 .get_msglevel
= get_msglevel
,
2055 .set_msglevel
= set_msglevel
,
2056 .get_ringparam
= get_sge_param
,
2057 .set_ringparam
= set_sge_param
,
2058 .get_coalesce
= get_coalesce
,
2059 .set_coalesce
= set_coalesce
,
2060 .get_eeprom_len
= get_eeprom_len
,
2061 .get_eeprom
= get_eeprom
,
2062 .set_eeprom
= set_eeprom
,
2063 .get_pauseparam
= get_pauseparam
,
2064 .set_pauseparam
= set_pauseparam
,
2065 .get_link
= ethtool_op_get_link
,
2066 .get_strings
= get_strings
,
2067 .set_phys_id
= set_phys_id
,
2068 .nway_reset
= restart_autoneg
,
2069 .get_sset_count
= get_sset_count
,
2070 .get_ethtool_stats
= get_stats
,
2071 .get_regs_len
= get_regs_len
,
2072 .get_regs
= get_regs
,
2076 static int in_range(int val
, int lo
, int hi
)
2078 return val
< 0 || (val
<= hi
&& val
>= lo
);
2081 static int cxgb_extension_ioctl(struct net_device
*dev
, void __user
*useraddr
)
2083 struct port_info
*pi
= netdev_priv(dev
);
2084 struct adapter
*adapter
= pi
->adapter
;
2088 if (copy_from_user(&cmd
, useraddr
, sizeof(cmd
)))
2092 case CHELSIO_SET_QSET_PARAMS
:{
2094 struct qset_params
*q
;
2095 struct ch_qset_params t
;
2096 int q1
= pi
->first_qset
;
2097 int nqsets
= pi
->nqsets
;
2099 if (!capable(CAP_NET_ADMIN
))
2101 if (copy_from_user(&t
, useraddr
, sizeof(t
)))
2103 if (t
.qset_idx
>= SGE_QSETS
)
2105 if (!in_range(t
.intr_lat
, 0, M_NEWTIMER
) ||
2106 !in_range(t
.cong_thres
, 0, 255) ||
2107 !in_range(t
.txq_size
[0], MIN_TXQ_ENTRIES
,
2109 !in_range(t
.txq_size
[1], MIN_TXQ_ENTRIES
,
2111 !in_range(t
.txq_size
[2], MIN_CTRL_TXQ_ENTRIES
,
2112 MAX_CTRL_TXQ_ENTRIES
) ||
2113 !in_range(t
.fl_size
[0], MIN_FL_ENTRIES
,
2115 !in_range(t
.fl_size
[1], MIN_FL_ENTRIES
,
2116 MAX_RX_JUMBO_BUFFERS
) ||
2117 !in_range(t
.rspq_size
, MIN_RSPQ_ENTRIES
,
2121 if ((adapter
->flags
& FULL_INIT_DONE
) &&
2122 (t
.rspq_size
>= 0 || t
.fl_size
[0] >= 0 ||
2123 t
.fl_size
[1] >= 0 || t
.txq_size
[0] >= 0 ||
2124 t
.txq_size
[1] >= 0 || t
.txq_size
[2] >= 0 ||
2125 t
.polling
>= 0 || t
.cong_thres
>= 0))
2128 /* Allow setting of any available qset when offload enabled */
2129 if (test_bit(OFFLOAD_DEVMAP_BIT
, &adapter
->open_device_map
)) {
2131 for_each_port(adapter
, i
) {
2132 pi
= adap2pinfo(adapter
, i
);
2133 nqsets
+= pi
->first_qset
+ pi
->nqsets
;
2137 if (t
.qset_idx
< q1
)
2139 if (t
.qset_idx
> q1
+ nqsets
- 1)
2142 q
= &adapter
->params
.sge
.qset
[t
.qset_idx
];
2144 if (t
.rspq_size
>= 0)
2145 q
->rspq_size
= t
.rspq_size
;
2146 if (t
.fl_size
[0] >= 0)
2147 q
->fl_size
= t
.fl_size
[0];
2148 if (t
.fl_size
[1] >= 0)
2149 q
->jumbo_size
= t
.fl_size
[1];
2150 if (t
.txq_size
[0] >= 0)
2151 q
->txq_size
[0] = t
.txq_size
[0];
2152 if (t
.txq_size
[1] >= 0)
2153 q
->txq_size
[1] = t
.txq_size
[1];
2154 if (t
.txq_size
[2] >= 0)
2155 q
->txq_size
[2] = t
.txq_size
[2];
2156 if (t
.cong_thres
>= 0)
2157 q
->cong_thres
= t
.cong_thres
;
2158 if (t
.intr_lat
>= 0) {
2159 struct sge_qset
*qs
=
2160 &adapter
->sge
.qs
[t
.qset_idx
];
2162 q
->coalesce_usecs
= t
.intr_lat
;
2163 t3_update_qset_coalesce(qs
, q
);
2165 if (t
.polling
>= 0) {
2166 if (adapter
->flags
& USING_MSIX
)
2167 q
->polling
= t
.polling
;
2169 /* No polling with INTx for T3A */
2170 if (adapter
->params
.rev
== 0 &&
2171 !(adapter
->flags
& USING_MSI
))
2174 for (i
= 0; i
< SGE_QSETS
; i
++) {
2175 q
= &adapter
->params
.sge
.
2177 q
->polling
= t
.polling
;
2184 dev
->wanted_features
|= NETIF_F_GRO
;
2186 dev
->wanted_features
&= ~NETIF_F_GRO
;
2187 netdev_update_features(dev
);
2192 case CHELSIO_GET_QSET_PARAMS
:{
2193 struct qset_params
*q
;
2194 struct ch_qset_params t
;
2195 int q1
= pi
->first_qset
;
2196 int nqsets
= pi
->nqsets
;
2199 if (copy_from_user(&t
, useraddr
, sizeof(t
)))
2202 /* Display qsets for all ports when offload enabled */
2203 if (test_bit(OFFLOAD_DEVMAP_BIT
, &adapter
->open_device_map
)) {
2205 for_each_port(adapter
, i
) {
2206 pi
= adap2pinfo(adapter
, i
);
2207 nqsets
= pi
->first_qset
+ pi
->nqsets
;
2211 if (t
.qset_idx
>= nqsets
)
2214 q
= &adapter
->params
.sge
.qset
[q1
+ t
.qset_idx
];
2215 t
.rspq_size
= q
->rspq_size
;
2216 t
.txq_size
[0] = q
->txq_size
[0];
2217 t
.txq_size
[1] = q
->txq_size
[1];
2218 t
.txq_size
[2] = q
->txq_size
[2];
2219 t
.fl_size
[0] = q
->fl_size
;
2220 t
.fl_size
[1] = q
->jumbo_size
;
2221 t
.polling
= q
->polling
;
2222 t
.lro
= !!(dev
->features
& NETIF_F_GRO
);
2223 t
.intr_lat
= q
->coalesce_usecs
;
2224 t
.cong_thres
= q
->cong_thres
;
2227 if (adapter
->flags
& USING_MSIX
)
2228 t
.vector
= adapter
->msix_info
[q1
+ t
.qset_idx
+ 1].vec
;
2230 t
.vector
= adapter
->pdev
->irq
;
2232 if (copy_to_user(useraddr
, &t
, sizeof(t
)))
2236 case CHELSIO_SET_QSET_NUM
:{
2237 struct ch_reg edata
;
2238 unsigned int i
, first_qset
= 0, other_qsets
= 0;
2240 if (!capable(CAP_NET_ADMIN
))
2242 if (adapter
->flags
& FULL_INIT_DONE
)
2244 if (copy_from_user(&edata
, useraddr
, sizeof(edata
)))
2246 if (edata
.val
< 1 ||
2247 (edata
.val
> 1 && !(adapter
->flags
& USING_MSIX
)))
2250 for_each_port(adapter
, i
)
2251 if (adapter
->port
[i
] && adapter
->port
[i
] != dev
)
2252 other_qsets
+= adap2pinfo(adapter
, i
)->nqsets
;
2254 if (edata
.val
+ other_qsets
> SGE_QSETS
)
2257 pi
->nqsets
= edata
.val
;
2259 for_each_port(adapter
, i
)
2260 if (adapter
->port
[i
]) {
2261 pi
= adap2pinfo(adapter
, i
);
2262 pi
->first_qset
= first_qset
;
2263 first_qset
+= pi
->nqsets
;
2267 case CHELSIO_GET_QSET_NUM
:{
2268 struct ch_reg edata
;
2270 memset(&edata
, 0, sizeof(struct ch_reg
));
2272 edata
.cmd
= CHELSIO_GET_QSET_NUM
;
2273 edata
.val
= pi
->nqsets
;
2274 if (copy_to_user(useraddr
, &edata
, sizeof(edata
)))
2278 case CHELSIO_LOAD_FW
:{
2280 struct ch_mem_range t
;
2282 if (!capable(CAP_SYS_RAWIO
))
2284 if (copy_from_user(&t
, useraddr
, sizeof(t
)))
2286 /* Check t.len sanity ? */
2287 fw_data
= memdup_user(useraddr
+ sizeof(t
), t
.len
);
2288 if (IS_ERR(fw_data
))
2289 return PTR_ERR(fw_data
);
2291 ret
= t3_load_fw(adapter
, fw_data
, t
.len
);
2297 case CHELSIO_SETMTUTAB
:{
2301 if (!is_offload(adapter
))
2303 if (!capable(CAP_NET_ADMIN
))
2305 if (offload_running(adapter
))
2307 if (copy_from_user(&m
, useraddr
, sizeof(m
)))
2309 if (m
.nmtus
!= NMTUS
)
2311 if (m
.mtus
[0] < 81) /* accommodate SACK */
2314 /* MTUs must be in ascending order */
2315 for (i
= 1; i
< NMTUS
; ++i
)
2316 if (m
.mtus
[i
] < m
.mtus
[i
- 1])
2319 memcpy(adapter
->params
.mtus
, m
.mtus
,
2320 sizeof(adapter
->params
.mtus
));
2323 case CHELSIO_GET_PM
:{
2324 struct tp_params
*p
= &adapter
->params
.tp
;
2325 struct ch_pm m
= {.cmd
= CHELSIO_GET_PM
};
2327 if (!is_offload(adapter
))
2329 m
.tx_pg_sz
= p
->tx_pg_size
;
2330 m
.tx_num_pg
= p
->tx_num_pgs
;
2331 m
.rx_pg_sz
= p
->rx_pg_size
;
2332 m
.rx_num_pg
= p
->rx_num_pgs
;
2333 m
.pm_total
= p
->pmtx_size
+ p
->chan_rx_size
* p
->nchan
;
2334 if (copy_to_user(useraddr
, &m
, sizeof(m
)))
2338 case CHELSIO_SET_PM
:{
2340 struct tp_params
*p
= &adapter
->params
.tp
;
2342 if (!is_offload(adapter
))
2344 if (!capable(CAP_NET_ADMIN
))
2346 if (adapter
->flags
& FULL_INIT_DONE
)
2348 if (copy_from_user(&m
, useraddr
, sizeof(m
)))
2350 if (!is_power_of_2(m
.rx_pg_sz
) ||
2351 !is_power_of_2(m
.tx_pg_sz
))
2352 return -EINVAL
; /* not power of 2 */
2353 if (!(m
.rx_pg_sz
& 0x14000))
2354 return -EINVAL
; /* not 16KB or 64KB */
2355 if (!(m
.tx_pg_sz
& 0x1554000))
2357 if (m
.tx_num_pg
== -1)
2358 m
.tx_num_pg
= p
->tx_num_pgs
;
2359 if (m
.rx_num_pg
== -1)
2360 m
.rx_num_pg
= p
->rx_num_pgs
;
2361 if (m
.tx_num_pg
% 24 || m
.rx_num_pg
% 24)
2363 if (m
.rx_num_pg
* m
.rx_pg_sz
> p
->chan_rx_size
||
2364 m
.tx_num_pg
* m
.tx_pg_sz
> p
->chan_tx_size
)
2366 p
->rx_pg_size
= m
.rx_pg_sz
;
2367 p
->tx_pg_size
= m
.tx_pg_sz
;
2368 p
->rx_num_pgs
= m
.rx_num_pg
;
2369 p
->tx_num_pgs
= m
.tx_num_pg
;
2372 case CHELSIO_GET_MEM
:{
2373 struct ch_mem_range t
;
2377 if (!is_offload(adapter
))
2379 if (!(adapter
->flags
& FULL_INIT_DONE
))
2380 return -EIO
; /* need the memory controllers */
2381 if (copy_from_user(&t
, useraddr
, sizeof(t
)))
2383 if ((t
.addr
& 7) || (t
.len
& 7))
2385 if (t
.mem_id
== MEM_CM
)
2387 else if (t
.mem_id
== MEM_PMRX
)
2388 mem
= &adapter
->pmrx
;
2389 else if (t
.mem_id
== MEM_PMTX
)
2390 mem
= &adapter
->pmtx
;
2396 * bits 0..9: chip version
2397 * bits 10..15: chip revision
2399 t
.version
= 3 | (adapter
->params
.rev
<< 10);
2400 if (copy_to_user(useraddr
, &t
, sizeof(t
)))
2404 * Read 256 bytes at a time as len can be large and we don't
2405 * want to use huge intermediate buffers.
2407 useraddr
+= sizeof(t
); /* advance to start of buffer */
2409 unsigned int chunk
=
2410 min_t(unsigned int, t
.len
, sizeof(buf
));
2413 t3_mc7_bd_read(mem
, t
.addr
/ 8, chunk
/ 8,
2417 if (copy_to_user(useraddr
, buf
, chunk
))
2425 case CHELSIO_SET_TRACE_FILTER
:{
2427 const struct trace_params
*tp
;
2429 if (!capable(CAP_NET_ADMIN
))
2431 if (!offload_running(adapter
))
2433 if (copy_from_user(&t
, useraddr
, sizeof(t
)))
2436 tp
= (const struct trace_params
*)&t
.sip
;
2438 t3_config_trace_filter(adapter
, tp
, 0,
2442 t3_config_trace_filter(adapter
, tp
, 1,
2453 static int cxgb_ioctl(struct net_device
*dev
, struct ifreq
*req
, int cmd
)
2455 struct mii_ioctl_data
*data
= if_mii(req
);
2456 struct port_info
*pi
= netdev_priv(dev
);
2457 struct adapter
*adapter
= pi
->adapter
;
2462 /* Convert phy_id from older PRTAD/DEVAD format */
2463 if (is_10G(adapter
) &&
2464 !mdio_phy_id_is_c45(data
->phy_id
) &&
2465 (data
->phy_id
& 0x1f00) &&
2466 !(data
->phy_id
& 0xe0e0))
2467 data
->phy_id
= mdio_phy_id_c45(data
->phy_id
>> 8,
2468 data
->phy_id
& 0x1f);
2471 return mdio_mii_ioctl(&pi
->phy
.mdio
, data
, cmd
);
2473 return cxgb_extension_ioctl(dev
, req
->ifr_data
);
2479 static int cxgb_change_mtu(struct net_device
*dev
, int new_mtu
)
2481 struct port_info
*pi
= netdev_priv(dev
);
2482 struct adapter
*adapter
= pi
->adapter
;
2485 if (new_mtu
< 81) /* accommodate SACK */
2487 if ((ret
= t3_mac_set_mtu(&pi
->mac
, new_mtu
)))
2490 init_port_mtus(adapter
);
2491 if (adapter
->params
.rev
== 0 && offload_running(adapter
))
2492 t3_load_mtus(adapter
, adapter
->params
.mtus
,
2493 adapter
->params
.a_wnd
, adapter
->params
.b_wnd
,
2494 adapter
->port
[0]->mtu
);
2498 static int cxgb_set_mac_addr(struct net_device
*dev
, void *p
)
2500 struct port_info
*pi
= netdev_priv(dev
);
2501 struct adapter
*adapter
= pi
->adapter
;
2502 struct sockaddr
*addr
= p
;
2504 if (!is_valid_ether_addr(addr
->sa_data
))
2507 memcpy(dev
->dev_addr
, addr
->sa_data
, dev
->addr_len
);
2508 t3_mac_set_address(&pi
->mac
, LAN_MAC_IDX
, dev
->dev_addr
);
2509 if (offload_running(adapter
))
2510 write_smt_entry(adapter
, pi
->port_id
);
2515 * t3_synchronize_rx - wait for current Rx processing on a port to complete
2516 * @adap: the adapter
2519 * Ensures that current Rx processing on any of the queues associated with
2520 * the given port completes before returning. We do this by acquiring and
2521 * releasing the locks of the response queues associated with the port.
2523 static void t3_synchronize_rx(struct adapter
*adap
, const struct port_info
*p
)
2527 for (i
= p
->first_qset
; i
< p
->first_qset
+ p
->nqsets
; i
++) {
2528 struct sge_rspq
*q
= &adap
->sge
.qs
[i
].rspq
;
2530 spin_lock_irq(&q
->lock
);
2531 spin_unlock_irq(&q
->lock
);
2535 static void cxgb_vlan_mode(struct net_device
*dev
, u32 features
)
2537 struct port_info
*pi
= netdev_priv(dev
);
2538 struct adapter
*adapter
= pi
->adapter
;
2540 if (adapter
->params
.rev
> 0) {
2541 t3_set_vlan_accel(adapter
, 1 << pi
->port_id
,
2542 features
& NETIF_F_HW_VLAN_RX
);
2544 /* single control for all ports */
2545 unsigned int i
, have_vlans
= features
& NETIF_F_HW_VLAN_RX
;
2547 for_each_port(adapter
, i
)
2549 adapter
->port
[i
]->features
& NETIF_F_HW_VLAN_RX
;
2551 t3_set_vlan_accel(adapter
, 1, have_vlans
);
2553 t3_synchronize_rx(adapter
, pi
);
2556 static u32
cxgb_fix_features(struct net_device
*dev
, u32 features
)
2559 * Since there is no support for separate rx/tx vlan accel
2560 * enable/disable make sure tx flag is always in same state as rx.
2562 if (features
& NETIF_F_HW_VLAN_RX
)
2563 features
|= NETIF_F_HW_VLAN_TX
;
2565 features
&= ~NETIF_F_HW_VLAN_TX
;
2570 static int cxgb_set_features(struct net_device
*dev
, u32 features
)
2572 u32 changed
= dev
->features
^ features
;
2574 if (changed
& NETIF_F_HW_VLAN_RX
)
2575 cxgb_vlan_mode(dev
, features
);
2580 #ifdef CONFIG_NET_POLL_CONTROLLER
2581 static void cxgb_netpoll(struct net_device
*dev
)
2583 struct port_info
*pi
= netdev_priv(dev
);
2584 struct adapter
*adapter
= pi
->adapter
;
2587 for (qidx
= pi
->first_qset
; qidx
< pi
->first_qset
+ pi
->nqsets
; qidx
++) {
2588 struct sge_qset
*qs
= &adapter
->sge
.qs
[qidx
];
2591 if (adapter
->flags
& USING_MSIX
)
2596 t3_intr_handler(adapter
, qs
->rspq
.polling
) (0, source
);
2602 * Periodic accumulation of MAC statistics.
2604 static void mac_stats_update(struct adapter
*adapter
)
2608 for_each_port(adapter
, i
) {
2609 struct net_device
*dev
= adapter
->port
[i
];
2610 struct port_info
*p
= netdev_priv(dev
);
2612 if (netif_running(dev
)) {
2613 spin_lock(&adapter
->stats_lock
);
2614 t3_mac_update_stats(&p
->mac
);
2615 spin_unlock(&adapter
->stats_lock
);
2620 static void check_link_status(struct adapter
*adapter
)
2624 for_each_port(adapter
, i
) {
2625 struct net_device
*dev
= adapter
->port
[i
];
2626 struct port_info
*p
= netdev_priv(dev
);
2629 spin_lock_irq(&adapter
->work_lock
);
2630 link_fault
= p
->link_fault
;
2631 spin_unlock_irq(&adapter
->work_lock
);
2634 t3_link_fault(adapter
, i
);
2638 if (!(p
->phy
.caps
& SUPPORTED_IRQ
) && netif_running(dev
)) {
2639 t3_xgm_intr_disable(adapter
, i
);
2640 t3_read_reg(adapter
, A_XGM_INT_STATUS
+ p
->mac
.offset
);
2642 t3_link_changed(adapter
, i
);
2643 t3_xgm_intr_enable(adapter
, i
);
2648 static void check_t3b2_mac(struct adapter
*adapter
)
2652 if (!rtnl_trylock()) /* synchronize with ifdown */
2655 for_each_port(adapter
, i
) {
2656 struct net_device
*dev
= adapter
->port
[i
];
2657 struct port_info
*p
= netdev_priv(dev
);
2660 if (!netif_running(dev
))
2664 if (netif_running(dev
) && netif_carrier_ok(dev
))
2665 status
= t3b2_mac_watchdog_task(&p
->mac
);
2667 p
->mac
.stats
.num_toggled
++;
2668 else if (status
== 2) {
2669 struct cmac
*mac
= &p
->mac
;
2671 t3_mac_set_mtu(mac
, dev
->mtu
);
2672 t3_mac_set_address(mac
, LAN_MAC_IDX
, dev
->dev_addr
);
2673 cxgb_set_rxmode(dev
);
2674 t3_link_start(&p
->phy
, mac
, &p
->link_config
);
2675 t3_mac_enable(mac
, MAC_DIRECTION_RX
| MAC_DIRECTION_TX
);
2676 t3_port_intr_enable(adapter
, p
->port_id
);
2677 p
->mac
.stats
.num_resets
++;
2684 static void t3_adap_check_task(struct work_struct
*work
)
2686 struct adapter
*adapter
= container_of(work
, struct adapter
,
2687 adap_check_task
.work
);
2688 const struct adapter_params
*p
= &adapter
->params
;
2690 unsigned int v
, status
, reset
;
2692 adapter
->check_task_cnt
++;
2694 check_link_status(adapter
);
2696 /* Accumulate MAC stats if needed */
2697 if (!p
->linkpoll_period
||
2698 (adapter
->check_task_cnt
* p
->linkpoll_period
) / 10 >=
2699 p
->stats_update_period
) {
2700 mac_stats_update(adapter
);
2701 adapter
->check_task_cnt
= 0;
2704 if (p
->rev
== T3_REV_B2
)
2705 check_t3b2_mac(adapter
);
2708 * Scan the XGMAC's to check for various conditions which we want to
2709 * monitor in a periodic polling manner rather than via an interrupt
2710 * condition. This is used for conditions which would otherwise flood
2711 * the system with interrupts and we only really need to know that the
2712 * conditions are "happening" ... For each condition we count the
2713 * detection of the condition and reset it for the next polling loop.
2715 for_each_port(adapter
, port
) {
2716 struct cmac
*mac
= &adap2pinfo(adapter
, port
)->mac
;
2719 cause
= t3_read_reg(adapter
, A_XGM_INT_CAUSE
+ mac
->offset
);
2721 if (cause
& F_RXFIFO_OVERFLOW
) {
2722 mac
->stats
.rx_fifo_ovfl
++;
2723 reset
|= F_RXFIFO_OVERFLOW
;
2726 t3_write_reg(adapter
, A_XGM_INT_CAUSE
+ mac
->offset
, reset
);
2730 * We do the same as above for FL_EMPTY interrupts.
2732 status
= t3_read_reg(adapter
, A_SG_INT_CAUSE
);
2735 if (status
& F_FLEMPTY
) {
2736 struct sge_qset
*qs
= &adapter
->sge
.qs
[0];
2741 v
= (t3_read_reg(adapter
, A_SG_RSPQ_FL_STATUS
) >> S_FL0EMPTY
) &
2745 qs
->fl
[i
].empty
+= (v
& 1);
2753 t3_write_reg(adapter
, A_SG_INT_CAUSE
, reset
);
2755 /* Schedule the next check update if any port is active. */
2756 spin_lock_irq(&adapter
->work_lock
);
2757 if (adapter
->open_device_map
& PORT_MASK
)
2758 schedule_chk_task(adapter
);
2759 spin_unlock_irq(&adapter
->work_lock
);
2762 static void db_full_task(struct work_struct
*work
)
2764 struct adapter
*adapter
= container_of(work
, struct adapter
,
2767 cxgb3_event_notify(&adapter
->tdev
, OFFLOAD_DB_FULL
, 0);
2770 static void db_empty_task(struct work_struct
*work
)
2772 struct adapter
*adapter
= container_of(work
, struct adapter
,
2775 cxgb3_event_notify(&adapter
->tdev
, OFFLOAD_DB_EMPTY
, 0);
2778 static void db_drop_task(struct work_struct
*work
)
2780 struct adapter
*adapter
= container_of(work
, struct adapter
,
2782 unsigned long delay
= 1000;
2785 cxgb3_event_notify(&adapter
->tdev
, OFFLOAD_DB_DROP
, 0);
2788 * Sleep a while before ringing the driver qset dbs.
2789 * The delay is between 1000-2023 usecs.
2791 get_random_bytes(&r
, 2);
2793 set_current_state(TASK_UNINTERRUPTIBLE
);
2794 schedule_timeout(usecs_to_jiffies(delay
));
2799 * Processes external (PHY) interrupts in process context.
2801 static void ext_intr_task(struct work_struct
*work
)
2803 struct adapter
*adapter
= container_of(work
, struct adapter
,
2804 ext_intr_handler_task
);
2807 /* Disable link fault interrupts */
2808 for_each_port(adapter
, i
) {
2809 struct net_device
*dev
= adapter
->port
[i
];
2810 struct port_info
*p
= netdev_priv(dev
);
2812 t3_xgm_intr_disable(adapter
, i
);
2813 t3_read_reg(adapter
, A_XGM_INT_STATUS
+ p
->mac
.offset
);
2816 /* Re-enable link fault interrupts */
2817 t3_phy_intr_handler(adapter
);
2819 for_each_port(adapter
, i
)
2820 t3_xgm_intr_enable(adapter
, i
);
2822 /* Now reenable external interrupts */
2823 spin_lock_irq(&adapter
->work_lock
);
2824 if (adapter
->slow_intr_mask
) {
2825 adapter
->slow_intr_mask
|= F_T3DBG
;
2826 t3_write_reg(adapter
, A_PL_INT_CAUSE0
, F_T3DBG
);
2827 t3_write_reg(adapter
, A_PL_INT_ENABLE0
,
2828 adapter
->slow_intr_mask
);
2830 spin_unlock_irq(&adapter
->work_lock
);
2834 * Interrupt-context handler for external (PHY) interrupts.
2836 void t3_os_ext_intr_handler(struct adapter
*adapter
)
2839 * Schedule a task to handle external interrupts as they may be slow
2840 * and we use a mutex to protect MDIO registers. We disable PHY
2841 * interrupts in the meantime and let the task reenable them when
2844 spin_lock(&adapter
->work_lock
);
2845 if (adapter
->slow_intr_mask
) {
2846 adapter
->slow_intr_mask
&= ~F_T3DBG
;
2847 t3_write_reg(adapter
, A_PL_INT_ENABLE0
,
2848 adapter
->slow_intr_mask
);
2849 queue_work(cxgb3_wq
, &adapter
->ext_intr_handler_task
);
2851 spin_unlock(&adapter
->work_lock
);
2854 void t3_os_link_fault_handler(struct adapter
*adapter
, int port_id
)
2856 struct net_device
*netdev
= adapter
->port
[port_id
];
2857 struct port_info
*pi
= netdev_priv(netdev
);
2859 spin_lock(&adapter
->work_lock
);
2861 spin_unlock(&adapter
->work_lock
);
2864 static int t3_adapter_error(struct adapter
*adapter
, int reset
, int on_wq
)
2868 if (is_offload(adapter
) &&
2869 test_bit(OFFLOAD_DEVMAP_BIT
, &adapter
->open_device_map
)) {
2870 cxgb3_event_notify(&adapter
->tdev
, OFFLOAD_STATUS_DOWN
, 0);
2871 offload_close(&adapter
->tdev
);
2874 /* Stop all ports */
2875 for_each_port(adapter
, i
) {
2876 struct net_device
*netdev
= adapter
->port
[i
];
2878 if (netif_running(netdev
))
2879 __cxgb_close(netdev
, on_wq
);
2882 /* Stop SGE timers */
2883 t3_stop_sge_timers(adapter
);
2885 adapter
->flags
&= ~FULL_INIT_DONE
;
2888 ret
= t3_reset_adapter(adapter
);
2890 pci_disable_device(adapter
->pdev
);
2895 static int t3_reenable_adapter(struct adapter
*adapter
)
2897 if (pci_enable_device(adapter
->pdev
)) {
2898 dev_err(&adapter
->pdev
->dev
,
2899 "Cannot re-enable PCI device after reset.\n");
2902 pci_set_master(adapter
->pdev
);
2903 pci_restore_state(adapter
->pdev
);
2904 pci_save_state(adapter
->pdev
);
2906 /* Free sge resources */
2907 t3_free_sge_resources(adapter
);
2909 if (t3_replay_prep_adapter(adapter
))
2917 static void t3_resume_ports(struct adapter
*adapter
)
2921 /* Restart the ports */
2922 for_each_port(adapter
, i
) {
2923 struct net_device
*netdev
= adapter
->port
[i
];
2925 if (netif_running(netdev
)) {
2926 if (cxgb_open(netdev
)) {
2927 dev_err(&adapter
->pdev
->dev
,
2928 "can't bring device back up"
2935 if (is_offload(adapter
) && !ofld_disable
)
2936 cxgb3_event_notify(&adapter
->tdev
, OFFLOAD_STATUS_UP
, 0);
2940 * processes a fatal error.
2941 * Bring the ports down, reset the chip, bring the ports back up.
2943 static void fatal_error_task(struct work_struct
*work
)
2945 struct adapter
*adapter
= container_of(work
, struct adapter
,
2946 fatal_error_handler_task
);
2950 err
= t3_adapter_error(adapter
, 1, 1);
2952 err
= t3_reenable_adapter(adapter
);
2954 t3_resume_ports(adapter
);
2956 CH_ALERT(adapter
, "adapter reset %s\n", err
? "failed" : "succeeded");
2960 void t3_fatal_err(struct adapter
*adapter
)
2962 unsigned int fw_status
[4];
2964 if (adapter
->flags
& FULL_INIT_DONE
) {
2965 t3_sge_stop(adapter
);
2966 t3_write_reg(adapter
, A_XGM_TX_CTRL
, 0);
2967 t3_write_reg(adapter
, A_XGM_RX_CTRL
, 0);
2968 t3_write_reg(adapter
, XGM_REG(A_XGM_TX_CTRL
, 1), 0);
2969 t3_write_reg(adapter
, XGM_REG(A_XGM_RX_CTRL
, 1), 0);
2971 spin_lock(&adapter
->work_lock
);
2972 t3_intr_disable(adapter
);
2973 queue_work(cxgb3_wq
, &adapter
->fatal_error_handler_task
);
2974 spin_unlock(&adapter
->work_lock
);
2976 CH_ALERT(adapter
, "encountered fatal error, operation suspended\n");
2977 if (!t3_cim_ctl_blk_read(adapter
, 0xa0, 4, fw_status
))
2978 CH_ALERT(adapter
, "FW status: 0x%x, 0x%x, 0x%x, 0x%x\n",
2979 fw_status
[0], fw_status
[1],
2980 fw_status
[2], fw_status
[3]);
2984 * t3_io_error_detected - called when PCI error is detected
2985 * @pdev: Pointer to PCI device
2986 * @state: The current pci connection state
2988 * This function is called after a PCI bus error affecting
2989 * this device has been detected.
2991 static pci_ers_result_t
t3_io_error_detected(struct pci_dev
*pdev
,
2992 pci_channel_state_t state
)
2994 struct adapter
*adapter
= pci_get_drvdata(pdev
);
2996 if (state
== pci_channel_io_perm_failure
)
2997 return PCI_ERS_RESULT_DISCONNECT
;
2999 t3_adapter_error(adapter
, 0, 0);
3001 /* Request a slot reset. */
3002 return PCI_ERS_RESULT_NEED_RESET
;
3006 * t3_io_slot_reset - called after the pci bus has been reset.
3007 * @pdev: Pointer to PCI device
3009 * Restart the card from scratch, as if from a cold-boot.
3011 static pci_ers_result_t
t3_io_slot_reset(struct pci_dev
*pdev
)
3013 struct adapter
*adapter
= pci_get_drvdata(pdev
);
3015 if (!t3_reenable_adapter(adapter
))
3016 return PCI_ERS_RESULT_RECOVERED
;
3018 return PCI_ERS_RESULT_DISCONNECT
;
3022 * t3_io_resume - called when traffic can start flowing again.
3023 * @pdev: Pointer to PCI device
3025 * This callback is called when the error recovery driver tells us that
3026 * its OK to resume normal operation.
3028 static void t3_io_resume(struct pci_dev
*pdev
)
3030 struct adapter
*adapter
= pci_get_drvdata(pdev
);
3032 CH_ALERT(adapter
, "adapter recovering, PEX ERR 0x%x\n",
3033 t3_read_reg(adapter
, A_PCIE_PEX_ERR
));
3035 t3_resume_ports(adapter
);
3038 static struct pci_error_handlers t3_err_handler
= {
3039 .error_detected
= t3_io_error_detected
,
3040 .slot_reset
= t3_io_slot_reset
,
3041 .resume
= t3_io_resume
,
3045 * Set the number of qsets based on the number of CPUs and the number of ports,
3046 * not to exceed the number of available qsets, assuming there are enough qsets
3049 static void set_nqsets(struct adapter
*adap
)
3052 int num_cpus
= num_online_cpus();
3053 int hwports
= adap
->params
.nports
;
3054 int nqsets
= adap
->msix_nvectors
- 1;
3056 if (adap
->params
.rev
> 0 && adap
->flags
& USING_MSIX
) {
3058 (hwports
* nqsets
> SGE_QSETS
||
3059 num_cpus
>= nqsets
/ hwports
))
3061 if (nqsets
> num_cpus
)
3063 if (nqsets
< 1 || hwports
== 4)
3068 for_each_port(adap
, i
) {
3069 struct port_info
*pi
= adap2pinfo(adap
, i
);
3072 pi
->nqsets
= nqsets
;
3073 j
= pi
->first_qset
+ nqsets
;
3075 dev_info(&adap
->pdev
->dev
,
3076 "Port %d using %d queue sets.\n", i
, nqsets
);
3080 static int __devinit
cxgb_enable_msix(struct adapter
*adap
)
3082 struct msix_entry entries
[SGE_QSETS
+ 1];
3086 vectors
= ARRAY_SIZE(entries
);
3087 for (i
= 0; i
< vectors
; ++i
)
3088 entries
[i
].entry
= i
;
3090 while ((err
= pci_enable_msix(adap
->pdev
, entries
, vectors
)) > 0)
3094 pci_disable_msix(adap
->pdev
);
3096 if (!err
&& vectors
< (adap
->params
.nports
+ 1)) {
3097 pci_disable_msix(adap
->pdev
);
3102 for (i
= 0; i
< vectors
; ++i
)
3103 adap
->msix_info
[i
].vec
= entries
[i
].vector
;
3104 adap
->msix_nvectors
= vectors
;
3110 static void __devinit
print_port_info(struct adapter
*adap
,
3111 const struct adapter_info
*ai
)
3113 static const char *pci_variant
[] = {
3114 "PCI", "PCI-X", "PCI-X ECC", "PCI-X 266", "PCI Express"
3121 snprintf(buf
, sizeof(buf
), "%s x%d",
3122 pci_variant
[adap
->params
.pci
.variant
],
3123 adap
->params
.pci
.width
);
3125 snprintf(buf
, sizeof(buf
), "%s %dMHz/%d-bit",
3126 pci_variant
[adap
->params
.pci
.variant
],
3127 adap
->params
.pci
.speed
, adap
->params
.pci
.width
);
3129 for_each_port(adap
, i
) {
3130 struct net_device
*dev
= adap
->port
[i
];
3131 const struct port_info
*pi
= netdev_priv(dev
);
3133 if (!test_bit(i
, &adap
->registered_device_map
))
3135 printk(KERN_INFO
"%s: %s %s %sNIC (rev %d) %s%s\n",
3136 dev
->name
, ai
->desc
, pi
->phy
.desc
,
3137 is_offload(adap
) ? "R" : "", adap
->params
.rev
, buf
,
3138 (adap
->flags
& USING_MSIX
) ? " MSI-X" :
3139 (adap
->flags
& USING_MSI
) ? " MSI" : "");
3140 if (adap
->name
== dev
->name
&& adap
->params
.vpd
.mclk
)
3142 "%s: %uMB CM, %uMB PMTX, %uMB PMRX, S/N: %s\n",
3143 adap
->name
, t3_mc7_size(&adap
->cm
) >> 20,
3144 t3_mc7_size(&adap
->pmtx
) >> 20,
3145 t3_mc7_size(&adap
->pmrx
) >> 20,
3146 adap
->params
.vpd
.sn
);
3150 static const struct net_device_ops cxgb_netdev_ops
= {
3151 .ndo_open
= cxgb_open
,
3152 .ndo_stop
= cxgb_close
,
3153 .ndo_start_xmit
= t3_eth_xmit
,
3154 .ndo_get_stats
= cxgb_get_stats
,
3155 .ndo_validate_addr
= eth_validate_addr
,
3156 .ndo_set_multicast_list
= cxgb_set_rxmode
,
3157 .ndo_do_ioctl
= cxgb_ioctl
,
3158 .ndo_change_mtu
= cxgb_change_mtu
,
3159 .ndo_set_mac_address
= cxgb_set_mac_addr
,
3160 .ndo_fix_features
= cxgb_fix_features
,
3161 .ndo_set_features
= cxgb_set_features
,
3162 #ifdef CONFIG_NET_POLL_CONTROLLER
3163 .ndo_poll_controller
= cxgb_netpoll
,
3167 static void __devinit
cxgb3_init_iscsi_mac(struct net_device
*dev
)
3169 struct port_info
*pi
= netdev_priv(dev
);
3171 memcpy(pi
->iscsic
.mac_addr
, dev
->dev_addr
, ETH_ALEN
);
3172 pi
->iscsic
.mac_addr
[3] |= 0x80;
3175 static int __devinit
init_one(struct pci_dev
*pdev
,
3176 const struct pci_device_id
*ent
)
3178 static int version_printed
;
3180 int i
, err
, pci_using_dac
= 0;
3181 resource_size_t mmio_start
, mmio_len
;
3182 const struct adapter_info
*ai
;
3183 struct adapter
*adapter
= NULL
;
3184 struct port_info
*pi
;
3186 if (!version_printed
) {
3187 printk(KERN_INFO
"%s - version %s\n", DRV_DESC
, DRV_VERSION
);
3192 cxgb3_wq
= create_singlethread_workqueue(DRV_NAME
);
3194 printk(KERN_ERR DRV_NAME
3195 ": cannot initialize work queue\n");
3200 err
= pci_enable_device(pdev
);
3202 dev_err(&pdev
->dev
, "cannot enable PCI device\n");
3206 err
= pci_request_regions(pdev
, DRV_NAME
);
3208 /* Just info, some other driver may have claimed the device. */
3209 dev_info(&pdev
->dev
, "cannot obtain PCI resources\n");
3210 goto out_disable_device
;
3213 if (!pci_set_dma_mask(pdev
, DMA_BIT_MASK(64))) {
3215 err
= pci_set_consistent_dma_mask(pdev
, DMA_BIT_MASK(64));
3217 dev_err(&pdev
->dev
, "unable to obtain 64-bit DMA for "
3218 "coherent allocations\n");
3219 goto out_release_regions
;
3221 } else if ((err
= pci_set_dma_mask(pdev
, DMA_BIT_MASK(32))) != 0) {
3222 dev_err(&pdev
->dev
, "no usable DMA configuration\n");
3223 goto out_release_regions
;
3226 pci_set_master(pdev
);
3227 pci_save_state(pdev
);
3229 mmio_start
= pci_resource_start(pdev
, 0);
3230 mmio_len
= pci_resource_len(pdev
, 0);
3231 ai
= t3_get_adapter_info(ent
->driver_data
);
3233 adapter
= kzalloc(sizeof(*adapter
), GFP_KERNEL
);
3236 goto out_release_regions
;
3239 adapter
->nofail_skb
=
3240 alloc_skb(sizeof(struct cpl_set_tcb_field
), GFP_KERNEL
);
3241 if (!adapter
->nofail_skb
) {
3242 dev_err(&pdev
->dev
, "cannot allocate nofail buffer\n");
3244 goto out_free_adapter
;
3247 adapter
->regs
= ioremap_nocache(mmio_start
, mmio_len
);
3248 if (!adapter
->regs
) {
3249 dev_err(&pdev
->dev
, "cannot map device registers\n");
3251 goto out_free_adapter
;
3254 adapter
->pdev
= pdev
;
3255 adapter
->name
= pci_name(pdev
);
3256 adapter
->msg_enable
= dflt_msg_enable
;
3257 adapter
->mmio_len
= mmio_len
;
3259 mutex_init(&adapter
->mdio_lock
);
3260 spin_lock_init(&adapter
->work_lock
);
3261 spin_lock_init(&adapter
->stats_lock
);
3263 INIT_LIST_HEAD(&adapter
->adapter_list
);
3264 INIT_WORK(&adapter
->ext_intr_handler_task
, ext_intr_task
);
3265 INIT_WORK(&adapter
->fatal_error_handler_task
, fatal_error_task
);
3267 INIT_WORK(&adapter
->db_full_task
, db_full_task
);
3268 INIT_WORK(&adapter
->db_empty_task
, db_empty_task
);
3269 INIT_WORK(&adapter
->db_drop_task
, db_drop_task
);
3271 INIT_DELAYED_WORK(&adapter
->adap_check_task
, t3_adap_check_task
);
3273 for (i
= 0; i
< ai
->nports0
+ ai
->nports1
; ++i
) {
3274 struct net_device
*netdev
;
3276 netdev
= alloc_etherdev_mq(sizeof(struct port_info
), SGE_QSETS
);
3282 SET_NETDEV_DEV(netdev
, &pdev
->dev
);
3284 adapter
->port
[i
] = netdev
;
3285 pi
= netdev_priv(netdev
);
3286 pi
->adapter
= adapter
;
3288 netif_carrier_off(netdev
);
3289 netdev
->irq
= pdev
->irq
;
3290 netdev
->mem_start
= mmio_start
;
3291 netdev
->mem_end
= mmio_start
+ mmio_len
- 1;
3292 netdev
->hw_features
= NETIF_F_SG
| NETIF_F_IP_CSUM
|
3293 NETIF_F_TSO
| NETIF_F_RXCSUM
| NETIF_F_HW_VLAN_RX
;
3294 netdev
->features
|= netdev
->hw_features
| NETIF_F_HW_VLAN_TX
;
3296 netdev
->features
|= NETIF_F_HIGHDMA
;
3298 netdev
->netdev_ops
= &cxgb_netdev_ops
;
3299 SET_ETHTOOL_OPS(netdev
, &cxgb_ethtool_ops
);
3302 pci_set_drvdata(pdev
, adapter
);
3303 if (t3_prep_adapter(adapter
, ai
, 1) < 0) {
3309 * The card is now ready to go. If any errors occur during device
3310 * registration we do not fail the whole card but rather proceed only
3311 * with the ports we manage to register successfully. However we must
3312 * register at least one net device.
3314 for_each_port(adapter
, i
) {
3315 err
= register_netdev(adapter
->port
[i
]);
3317 dev_warn(&pdev
->dev
,
3318 "cannot register net device %s, skipping\n",
3319 adapter
->port
[i
]->name
);
3322 * Change the name we use for messages to the name of
3323 * the first successfully registered interface.
3325 if (!adapter
->registered_device_map
)
3326 adapter
->name
= adapter
->port
[i
]->name
;
3328 __set_bit(i
, &adapter
->registered_device_map
);
3331 if (!adapter
->registered_device_map
) {
3332 dev_err(&pdev
->dev
, "could not register any net devices\n");
3336 for_each_port(adapter
, i
)
3337 cxgb3_init_iscsi_mac(adapter
->port
[i
]);
3339 /* Driver's ready. Reflect it on LEDs */
3340 t3_led_ready(adapter
);
3342 if (is_offload(adapter
)) {
3343 __set_bit(OFFLOAD_DEVMAP_BIT
, &adapter
->registered_device_map
);
3344 cxgb3_adapter_ofld(adapter
);
3347 /* See what interrupts we'll be using */
3348 if (msi
> 1 && cxgb_enable_msix(adapter
) == 0)
3349 adapter
->flags
|= USING_MSIX
;
3350 else if (msi
> 0 && pci_enable_msi(pdev
) == 0)
3351 adapter
->flags
|= USING_MSI
;
3353 set_nqsets(adapter
);
3355 err
= sysfs_create_group(&adapter
->port
[0]->dev
.kobj
,
3358 for_each_port(adapter
, i
)
3359 cxgb_vlan_mode(adapter
->port
[i
], adapter
->port
[i
]->features
);
3361 print_port_info(adapter
, ai
);
3365 iounmap(adapter
->regs
);
3366 for (i
= ai
->nports0
+ ai
->nports1
- 1; i
>= 0; --i
)
3367 if (adapter
->port
[i
])
3368 free_netdev(adapter
->port
[i
]);
3373 out_release_regions
:
3374 pci_release_regions(pdev
);
3376 pci_disable_device(pdev
);
3377 pci_set_drvdata(pdev
, NULL
);
3382 static void __devexit
remove_one(struct pci_dev
*pdev
)
3384 struct adapter
*adapter
= pci_get_drvdata(pdev
);
3389 t3_sge_stop(adapter
);
3390 sysfs_remove_group(&adapter
->port
[0]->dev
.kobj
,
3393 if (is_offload(adapter
)) {
3394 cxgb3_adapter_unofld(adapter
);
3395 if (test_bit(OFFLOAD_DEVMAP_BIT
,
3396 &adapter
->open_device_map
))
3397 offload_close(&adapter
->tdev
);
3400 for_each_port(adapter
, i
)
3401 if (test_bit(i
, &adapter
->registered_device_map
))
3402 unregister_netdev(adapter
->port
[i
]);
3404 t3_stop_sge_timers(adapter
);
3405 t3_free_sge_resources(adapter
);
3406 cxgb_disable_msi(adapter
);
3408 for_each_port(adapter
, i
)
3409 if (adapter
->port
[i
])
3410 free_netdev(adapter
->port
[i
]);
3412 iounmap(adapter
->regs
);
3413 if (adapter
->nofail_skb
)
3414 kfree_skb(adapter
->nofail_skb
);
3416 pci_release_regions(pdev
);
3417 pci_disable_device(pdev
);
3418 pci_set_drvdata(pdev
, NULL
);
3422 static struct pci_driver driver
= {
3424 .id_table
= cxgb3_pci_tbl
,
3426 .remove
= __devexit_p(remove_one
),
3427 .err_handler
= &t3_err_handler
,
3430 static int __init
cxgb3_init_module(void)
3434 cxgb3_offload_init();
3436 ret
= pci_register_driver(&driver
);
3440 static void __exit
cxgb3_cleanup_module(void)
3442 pci_unregister_driver(&driver
);
3444 destroy_workqueue(cxgb3_wq
);
3447 module_init(cxgb3_init_module
);
3448 module_exit(cxgb3_cleanup_module
);