2 * QLogic qlge NIC HBA Driver
3 * Copyright (c) 2003-2008 QLogic Corporation
4 * See LICENSE.qlge for copyright and licensing details.
5 * Author: Linux qlge network device driver by
6 * Ron Mercer <ron.mercer@qlogic.com>
8 #include <linux/kernel.h>
9 #include <linux/init.h>
10 #include <linux/types.h>
11 #include <linux/module.h>
12 #include <linux/list.h>
13 #include <linux/pci.h>
14 #include <linux/dma-mapping.h>
15 #include <linux/pagemap.h>
16 #include <linux/sched.h>
17 #include <linux/slab.h>
18 #include <linux/dmapool.h>
19 #include <linux/mempool.h>
20 #include <linux/spinlock.h>
21 #include <linux/kthread.h>
22 #include <linux/interrupt.h>
23 #include <linux/errno.h>
24 #include <linux/ioport.h>
27 #include <linux/ipv6.h>
29 #include <linux/tcp.h>
30 #include <linux/udp.h>
31 #include <linux/if_arp.h>
32 #include <linux/if_ether.h>
33 #include <linux/netdevice.h>
34 #include <linux/etherdevice.h>
35 #include <linux/ethtool.h>
36 #include <linux/skbuff.h>
37 #include <linux/rtnetlink.h>
38 #include <linux/if_vlan.h>
39 #include <linux/delay.h>
41 #include <linux/vmalloc.h>
42 #include <net/ip6_checksum.h>
46 char qlge_driver_name
[] = DRV_NAME
;
47 const char qlge_driver_version
[] = DRV_VERSION
;
49 MODULE_AUTHOR("Ron Mercer <ron.mercer@qlogic.com>");
50 MODULE_DESCRIPTION(DRV_STRING
" ");
51 MODULE_LICENSE("GPL");
52 MODULE_VERSION(DRV_VERSION
);
54 static const u32 default_msg
=
55 NETIF_MSG_DRV
| NETIF_MSG_PROBE
| NETIF_MSG_LINK
|
56 /* NETIF_MSG_TIMER | */
62 NETIF_MSG_INTR
| NETIF_MSG_TX_DONE
| NETIF_MSG_RX_STATUS
|
63 /* NETIF_MSG_PKTDATA | */
64 NETIF_MSG_HW
| NETIF_MSG_WOL
| 0;
66 static int debug
= 0x00007fff; /* defaults above */
67 module_param(debug
, int, 0);
68 MODULE_PARM_DESC(debug
, "Debug level (0=none,...,16=all)");
73 static int irq_type
= MSIX_IRQ
;
74 module_param(irq_type
, int, MSIX_IRQ
);
75 MODULE_PARM_DESC(irq_type
, "0 = MSI-X, 1 = MSI, 2 = Legacy.");
77 static struct pci_device_id qlge_pci_tbl
[] __devinitdata
= {
78 {PCI_DEVICE(PCI_VENDOR_ID_QLOGIC
, QLGE_DEVICE_ID
)},
79 {PCI_DEVICE(PCI_VENDOR_ID_QLOGIC
, QLGE_DEVICE_ID1
)},
80 /* required last entry */
84 MODULE_DEVICE_TABLE(pci
, qlge_pci_tbl
);
86 /* This hardware semaphore causes exclusive access to
87 * resources shared between the NIC driver, MPI firmware,
88 * FCOE firmware and the FC driver.
90 static int ql_sem_trylock(struct ql_adapter
*qdev
, u32 sem_mask
)
96 sem_bits
= SEM_SET
<< SEM_XGMAC0_SHIFT
;
99 sem_bits
= SEM_SET
<< SEM_XGMAC1_SHIFT
;
102 sem_bits
= SEM_SET
<< SEM_ICB_SHIFT
;
104 case SEM_MAC_ADDR_MASK
:
105 sem_bits
= SEM_SET
<< SEM_MAC_ADDR_SHIFT
;
108 sem_bits
= SEM_SET
<< SEM_FLASH_SHIFT
;
111 sem_bits
= SEM_SET
<< SEM_PROBE_SHIFT
;
113 case SEM_RT_IDX_MASK
:
114 sem_bits
= SEM_SET
<< SEM_RT_IDX_SHIFT
;
116 case SEM_PROC_REG_MASK
:
117 sem_bits
= SEM_SET
<< SEM_PROC_REG_SHIFT
;
120 QPRINTK(qdev
, PROBE
, ALERT
, "Bad Semaphore mask!.\n");
124 ql_write32(qdev
, SEM
, sem_bits
| sem_mask
);
125 return !(ql_read32(qdev
, SEM
) & sem_bits
);
128 int ql_sem_spinlock(struct ql_adapter
*qdev
, u32 sem_mask
)
130 unsigned int seconds
= 3;
132 if (!ql_sem_trylock(qdev
, sem_mask
))
139 void ql_sem_unlock(struct ql_adapter
*qdev
, u32 sem_mask
)
141 ql_write32(qdev
, SEM
, sem_mask
);
142 ql_read32(qdev
, SEM
); /* flush */
145 /* This function waits for a specific bit to come ready
146 * in a given register. It is used mostly by the initialize
147 * process, but is also used in kernel thread API such as
148 * netdev->set_multi, netdev->set_mac_address, netdev->vlan_rx_add_vid.
150 int ql_wait_reg_rdy(struct ql_adapter
*qdev
, u32 reg
, u32 bit
, u32 err_bit
)
153 int count
= UDELAY_COUNT
;
156 temp
= ql_read32(qdev
, reg
);
158 /* check for errors */
159 if (temp
& err_bit
) {
160 QPRINTK(qdev
, PROBE
, ALERT
,
161 "register 0x%.08x access error, value = 0x%.08x!.\n",
164 } else if (temp
& bit
)
166 udelay(UDELAY_DELAY
);
169 QPRINTK(qdev
, PROBE
, ALERT
,
170 "Timed out waiting for reg %x to come ready.\n", reg
);
174 /* The CFG register is used to download TX and RX control blocks
175 * to the chip. This function waits for an operation to complete.
177 static int ql_wait_cfg(struct ql_adapter
*qdev
, u32 bit
)
179 int count
= UDELAY_COUNT
;
183 temp
= ql_read32(qdev
, CFG
);
188 udelay(UDELAY_DELAY
);
195 /* Used to issue init control blocks to hw. Maps control block,
196 * sets address, triggers download, waits for completion.
198 int ql_write_cfg(struct ql_adapter
*qdev
, void *ptr
, int size
, u32 bit
,
208 (bit
& (CFG_LRQ
| CFG_LR
| CFG_LCQ
)) ? PCI_DMA_TODEVICE
:
211 map
= pci_map_single(qdev
->pdev
, ptr
, size
, direction
);
212 if (pci_dma_mapping_error(qdev
->pdev
, map
)) {
213 QPRINTK(qdev
, IFUP
, ERR
, "Couldn't map DMA area.\n");
217 status
= ql_wait_cfg(qdev
, bit
);
219 QPRINTK(qdev
, IFUP
, ERR
,
220 "Timed out waiting for CFG to come ready.\n");
224 status
= ql_sem_spinlock(qdev
, SEM_ICB_MASK
);
227 ql_write32(qdev
, ICB_L
, (u32
) map
);
228 ql_write32(qdev
, ICB_H
, (u32
) (map
>> 32));
229 ql_sem_unlock(qdev
, SEM_ICB_MASK
); /* does flush too */
231 mask
= CFG_Q_MASK
| (bit
<< 16);
232 value
= bit
| (q_id
<< CFG_Q_SHIFT
);
233 ql_write32(qdev
, CFG
, (mask
| value
));
236 * Wait for the bit to clear after signaling hw.
238 status
= ql_wait_cfg(qdev
, bit
);
240 pci_unmap_single(qdev
->pdev
, map
, size
, direction
);
244 /* Get a specific MAC address from the CAM. Used for debug and reg dump. */
245 int ql_get_mac_addr_reg(struct ql_adapter
*qdev
, u32 type
, u16 index
,
251 status
= ql_sem_spinlock(qdev
, SEM_MAC_ADDR_MASK
);
255 case MAC_ADDR_TYPE_MULTI_MAC
:
256 case MAC_ADDR_TYPE_CAM_MAC
:
259 ql_wait_reg_rdy(qdev
,
260 MAC_ADDR_IDX
, MAC_ADDR_MW
, MAC_ADDR_E
);
263 ql_write32(qdev
, MAC_ADDR_IDX
, (offset
++) | /* offset */
264 (index
<< MAC_ADDR_IDX_SHIFT
) | /* index */
265 MAC_ADDR_ADR
| MAC_ADDR_RS
| type
); /* type */
267 ql_wait_reg_rdy(qdev
,
268 MAC_ADDR_IDX
, MAC_ADDR_MR
, MAC_ADDR_E
);
271 *value
++ = ql_read32(qdev
, MAC_ADDR_DATA
);
273 ql_wait_reg_rdy(qdev
,
274 MAC_ADDR_IDX
, MAC_ADDR_MW
, MAC_ADDR_E
);
277 ql_write32(qdev
, MAC_ADDR_IDX
, (offset
++) | /* offset */
278 (index
<< MAC_ADDR_IDX_SHIFT
) | /* index */
279 MAC_ADDR_ADR
| MAC_ADDR_RS
| type
); /* type */
281 ql_wait_reg_rdy(qdev
,
282 MAC_ADDR_IDX
, MAC_ADDR_MR
, MAC_ADDR_E
);
285 *value
++ = ql_read32(qdev
, MAC_ADDR_DATA
);
286 if (type
== MAC_ADDR_TYPE_CAM_MAC
) {
288 ql_wait_reg_rdy(qdev
,
289 MAC_ADDR_IDX
, MAC_ADDR_MW
, MAC_ADDR_E
);
292 ql_write32(qdev
, MAC_ADDR_IDX
, (offset
++) | /* offset */
293 (index
<< MAC_ADDR_IDX_SHIFT
) | /* index */
294 MAC_ADDR_ADR
| MAC_ADDR_RS
| type
); /* type */
296 ql_wait_reg_rdy(qdev
, MAC_ADDR_IDX
,
297 MAC_ADDR_MR
, MAC_ADDR_E
);
300 *value
++ = ql_read32(qdev
, MAC_ADDR_DATA
);
304 case MAC_ADDR_TYPE_VLAN
:
305 case MAC_ADDR_TYPE_MULTI_FLTR
:
307 QPRINTK(qdev
, IFUP
, CRIT
,
308 "Address type %d not yet supported.\n", type
);
312 ql_sem_unlock(qdev
, SEM_MAC_ADDR_MASK
);
316 /* Set up a MAC, multicast or VLAN address for the
317 * inbound frame matching.
319 static int ql_set_mac_addr_reg(struct ql_adapter
*qdev
, u8
*addr
, u32 type
,
325 status
= ql_sem_spinlock(qdev
, SEM_MAC_ADDR_MASK
);
329 case MAC_ADDR_TYPE_MULTI_MAC
:
330 case MAC_ADDR_TYPE_CAM_MAC
:
333 u32 upper
= (addr
[0] << 8) | addr
[1];
335 (addr
[2] << 24) | (addr
[3] << 16) | (addr
[4] << 8) |
338 QPRINTK(qdev
, IFUP
, INFO
,
339 "Adding %s address %pM"
340 " at index %d in the CAM.\n",
342 MAC_ADDR_TYPE_MULTI_MAC
) ? "MULTICAST" :
343 "UNICAST"), addr
, index
);
346 ql_wait_reg_rdy(qdev
,
347 MAC_ADDR_IDX
, MAC_ADDR_MW
, MAC_ADDR_E
);
350 ql_write32(qdev
, MAC_ADDR_IDX
, (offset
++) | /* offset */
351 (index
<< MAC_ADDR_IDX_SHIFT
) | /* index */
353 ql_write32(qdev
, MAC_ADDR_DATA
, lower
);
355 ql_wait_reg_rdy(qdev
,
356 MAC_ADDR_IDX
, MAC_ADDR_MW
, MAC_ADDR_E
);
359 ql_write32(qdev
, MAC_ADDR_IDX
, (offset
++) | /* offset */
360 (index
<< MAC_ADDR_IDX_SHIFT
) | /* index */
362 ql_write32(qdev
, MAC_ADDR_DATA
, upper
);
364 ql_wait_reg_rdy(qdev
,
365 MAC_ADDR_IDX
, MAC_ADDR_MW
, MAC_ADDR_E
);
368 ql_write32(qdev
, MAC_ADDR_IDX
, (offset
) | /* offset */
369 (index
<< MAC_ADDR_IDX_SHIFT
) | /* index */
371 /* This field should also include the queue id
372 and possibly the function id. Right now we hardcode
373 the route field to NIC core.
375 if (type
== MAC_ADDR_TYPE_CAM_MAC
) {
376 cam_output
= (CAM_OUT_ROUTE_NIC
|
378 func
<< CAM_OUT_FUNC_SHIFT
) |
380 rss_ring_first_cq_id
<<
381 CAM_OUT_CQ_ID_SHIFT
));
383 cam_output
|= CAM_OUT_RV
;
384 /* route to NIC core */
385 ql_write32(qdev
, MAC_ADDR_DATA
, cam_output
);
389 case MAC_ADDR_TYPE_VLAN
:
391 u32 enable_bit
= *((u32
*) &addr
[0]);
392 /* For VLAN, the addr actually holds a bit that
393 * either enables or disables the vlan id we are
394 * addressing. It's either MAC_ADDR_E on or off.
395 * That's bit-27 we're talking about.
397 QPRINTK(qdev
, IFUP
, INFO
, "%s VLAN ID %d %s the CAM.\n",
398 (enable_bit
? "Adding" : "Removing"),
399 index
, (enable_bit
? "to" : "from"));
402 ql_wait_reg_rdy(qdev
,
403 MAC_ADDR_IDX
, MAC_ADDR_MW
, MAC_ADDR_E
);
406 ql_write32(qdev
, MAC_ADDR_IDX
, offset
| /* offset */
407 (index
<< MAC_ADDR_IDX_SHIFT
) | /* index */
409 enable_bit
); /* enable/disable */
412 case MAC_ADDR_TYPE_MULTI_FLTR
:
414 QPRINTK(qdev
, IFUP
, CRIT
,
415 "Address type %d not yet supported.\n", type
);
419 ql_sem_unlock(qdev
, SEM_MAC_ADDR_MASK
);
423 /* Get a specific frame routing value from the CAM.
424 * Used for debug and reg dump.
426 int ql_get_routing_reg(struct ql_adapter
*qdev
, u32 index
, u32
*value
)
430 status
= ql_sem_spinlock(qdev
, SEM_RT_IDX_MASK
);
434 status
= ql_wait_reg_rdy(qdev
, RT_IDX
, RT_IDX_MW
, RT_IDX_E
);
438 ql_write32(qdev
, RT_IDX
,
439 RT_IDX_TYPE_NICQ
| RT_IDX_RS
| (index
<< RT_IDX_IDX_SHIFT
));
440 status
= ql_wait_reg_rdy(qdev
, RT_IDX
, RT_IDX_MR
, RT_IDX_E
);
443 *value
= ql_read32(qdev
, RT_DATA
);
445 ql_sem_unlock(qdev
, SEM_RT_IDX_MASK
);
449 /* The NIC function for this chip has 16 routing indexes. Each one can be used
450 * to route different frame types to various inbound queues. We send broadcast/
451 * multicast/error frames to the default queue for slow handling,
452 * and CAM hit/RSS frames to the fast handling queues.
454 static int ql_set_routing_reg(struct ql_adapter
*qdev
, u32 index
, u32 mask
,
460 status
= ql_sem_spinlock(qdev
, SEM_RT_IDX_MASK
);
464 QPRINTK(qdev
, IFUP
, DEBUG
,
465 "%s %s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s mask %s the routing reg.\n",
466 (enable
? "Adding" : "Removing"),
467 ((index
== RT_IDX_ALL_ERR_SLOT
) ? "MAC ERROR/ALL ERROR" : ""),
468 ((index
== RT_IDX_IP_CSUM_ERR_SLOT
) ? "IP CSUM ERROR" : ""),
470 RT_IDX_TCP_UDP_CSUM_ERR_SLOT
) ? "TCP/UDP CSUM ERROR" : ""),
471 ((index
== RT_IDX_BCAST_SLOT
) ? "BROADCAST" : ""),
472 ((index
== RT_IDX_MCAST_MATCH_SLOT
) ? "MULTICAST MATCH" : ""),
473 ((index
== RT_IDX_ALLMULTI_SLOT
) ? "ALL MULTICAST MATCH" : ""),
474 ((index
== RT_IDX_UNUSED6_SLOT
) ? "UNUSED6" : ""),
475 ((index
== RT_IDX_UNUSED7_SLOT
) ? "UNUSED7" : ""),
476 ((index
== RT_IDX_RSS_MATCH_SLOT
) ? "RSS ALL/IPV4 MATCH" : ""),
477 ((index
== RT_IDX_RSS_IPV6_SLOT
) ? "RSS IPV6" : ""),
478 ((index
== RT_IDX_RSS_TCP4_SLOT
) ? "RSS TCP4" : ""),
479 ((index
== RT_IDX_RSS_TCP6_SLOT
) ? "RSS TCP6" : ""),
480 ((index
== RT_IDX_CAM_HIT_SLOT
) ? "CAM HIT" : ""),
481 ((index
== RT_IDX_UNUSED013
) ? "UNUSED13" : ""),
482 ((index
== RT_IDX_UNUSED014
) ? "UNUSED14" : ""),
483 ((index
== RT_IDX_PROMISCUOUS_SLOT
) ? "PROMISCUOUS" : ""),
484 (enable
? "to" : "from"));
489 value
= RT_IDX_DST_CAM_Q
| /* dest */
490 RT_IDX_TYPE_NICQ
| /* type */
491 (RT_IDX_CAM_HIT_SLOT
<< RT_IDX_IDX_SHIFT
);/* index */
494 case RT_IDX_VALID
: /* Promiscuous Mode frames. */
496 value
= RT_IDX_DST_DFLT_Q
| /* dest */
497 RT_IDX_TYPE_NICQ
| /* type */
498 (RT_IDX_PROMISCUOUS_SLOT
<< RT_IDX_IDX_SHIFT
);/* index */
501 case RT_IDX_ERR
: /* Pass up MAC,IP,TCP/UDP error frames. */
503 value
= RT_IDX_DST_DFLT_Q
| /* dest */
504 RT_IDX_TYPE_NICQ
| /* type */
505 (RT_IDX_ALL_ERR_SLOT
<< RT_IDX_IDX_SHIFT
);/* index */
508 case RT_IDX_BCAST
: /* Pass up Broadcast frames to default Q. */
510 value
= RT_IDX_DST_DFLT_Q
| /* dest */
511 RT_IDX_TYPE_NICQ
| /* type */
512 (RT_IDX_BCAST_SLOT
<< RT_IDX_IDX_SHIFT
);/* index */
515 case RT_IDX_MCAST
: /* Pass up All Multicast frames. */
517 value
= RT_IDX_DST_CAM_Q
| /* dest */
518 RT_IDX_TYPE_NICQ
| /* type */
519 (RT_IDX_ALLMULTI_SLOT
<< RT_IDX_IDX_SHIFT
);/* index */
522 case RT_IDX_MCAST_MATCH
: /* Pass up matched Multicast frames. */
524 value
= RT_IDX_DST_CAM_Q
| /* dest */
525 RT_IDX_TYPE_NICQ
| /* type */
526 (RT_IDX_MCAST_MATCH_SLOT
<< RT_IDX_IDX_SHIFT
);/* index */
529 case RT_IDX_RSS_MATCH
: /* Pass up matched RSS frames. */
531 value
= RT_IDX_DST_RSS
| /* dest */
532 RT_IDX_TYPE_NICQ
| /* type */
533 (RT_IDX_RSS_MATCH_SLOT
<< RT_IDX_IDX_SHIFT
);/* index */
536 case 0: /* Clear the E-bit on an entry. */
538 value
= RT_IDX_DST_DFLT_Q
| /* dest */
539 RT_IDX_TYPE_NICQ
| /* type */
540 (index
<< RT_IDX_IDX_SHIFT
);/* index */
544 QPRINTK(qdev
, IFUP
, ERR
, "Mask type %d not yet supported.\n",
551 status
= ql_wait_reg_rdy(qdev
, RT_IDX
, RT_IDX_MW
, 0);
554 value
|= (enable
? RT_IDX_E
: 0);
555 ql_write32(qdev
, RT_IDX
, value
);
556 ql_write32(qdev
, RT_DATA
, enable
? mask
: 0);
559 ql_sem_unlock(qdev
, SEM_RT_IDX_MASK
);
563 static void ql_enable_interrupts(struct ql_adapter
*qdev
)
565 ql_write32(qdev
, INTR_EN
, (INTR_EN_EI
<< 16) | INTR_EN_EI
);
568 static void ql_disable_interrupts(struct ql_adapter
*qdev
)
570 ql_write32(qdev
, INTR_EN
, (INTR_EN_EI
<< 16));
573 /* If we're running with multiple MSI-X vectors then we enable on the fly.
574 * Otherwise, we may have multiple outstanding workers and don't want to
575 * enable until the last one finishes. In this case, the irq_cnt gets
576 * incremented everytime we queue a worker and decremented everytime
577 * a worker finishes. Once it hits zero we enable the interrupt.
579 u32
ql_enable_completion_interrupt(struct ql_adapter
*qdev
, u32 intr
)
582 unsigned long hw_flags
= 0;
583 struct intr_context
*ctx
= qdev
->intr_context
+ intr
;
585 if (likely(test_bit(QL_MSIX_ENABLED
, &qdev
->flags
) && intr
)) {
586 /* Always enable if we're MSIX multi interrupts and
587 * it's not the default (zeroeth) interrupt.
589 ql_write32(qdev
, INTR_EN
,
591 var
= ql_read32(qdev
, STS
);
595 spin_lock_irqsave(&qdev
->hw_lock
, hw_flags
);
596 if (atomic_dec_and_test(&ctx
->irq_cnt
)) {
597 ql_write32(qdev
, INTR_EN
,
599 var
= ql_read32(qdev
, STS
);
601 spin_unlock_irqrestore(&qdev
->hw_lock
, hw_flags
);
605 static u32
ql_disable_completion_interrupt(struct ql_adapter
*qdev
, u32 intr
)
608 unsigned long hw_flags
;
609 struct intr_context
*ctx
;
611 /* HW disables for us if we're MSIX multi interrupts and
612 * it's not the default (zeroeth) interrupt.
614 if (likely(test_bit(QL_MSIX_ENABLED
, &qdev
->flags
) && intr
))
617 ctx
= qdev
->intr_context
+ intr
;
618 spin_lock_irqsave(&qdev
->hw_lock
, hw_flags
);
619 if (!atomic_read(&ctx
->irq_cnt
)) {
620 ql_write32(qdev
, INTR_EN
,
622 var
= ql_read32(qdev
, STS
);
624 atomic_inc(&ctx
->irq_cnt
);
625 spin_unlock_irqrestore(&qdev
->hw_lock
, hw_flags
);
629 static void ql_enable_all_completion_interrupts(struct ql_adapter
*qdev
)
632 for (i
= 0; i
< qdev
->intr_count
; i
++) {
633 /* The enable call does a atomic_dec_and_test
634 * and enables only if the result is zero.
635 * So we precharge it here.
637 if (unlikely(!test_bit(QL_MSIX_ENABLED
, &qdev
->flags
) ||
639 atomic_set(&qdev
->intr_context
[i
].irq_cnt
, 1);
640 ql_enable_completion_interrupt(qdev
, i
);
645 int ql_read_flash_word(struct ql_adapter
*qdev
, int offset
, u32
*data
)
648 /* wait for reg to come ready */
649 status
= ql_wait_reg_rdy(qdev
,
650 FLASH_ADDR
, FLASH_ADDR_RDY
, FLASH_ADDR_ERR
);
653 /* set up for reg read */
654 ql_write32(qdev
, FLASH_ADDR
, FLASH_ADDR_R
| offset
);
655 /* wait for reg to come ready */
656 status
= ql_wait_reg_rdy(qdev
,
657 FLASH_ADDR
, FLASH_ADDR_RDY
, FLASH_ADDR_ERR
);
661 *data
= ql_read32(qdev
, FLASH_DATA
);
666 static int ql_get_flash_params(struct ql_adapter
*qdev
)
670 u32
*p
= (u32
*)&qdev
->flash
;
672 if (ql_sem_spinlock(qdev
, SEM_FLASH_MASK
))
675 for (i
= 0; i
< sizeof(qdev
->flash
) / sizeof(u32
); i
++, p
++) {
676 status
= ql_read_flash_word(qdev
, i
, p
);
678 QPRINTK(qdev
, IFUP
, ERR
, "Error reading flash.\n");
684 ql_sem_unlock(qdev
, SEM_FLASH_MASK
);
688 /* xgmac register are located behind the xgmac_addr and xgmac_data
689 * register pair. Each read/write requires us to wait for the ready
690 * bit before reading/writing the data.
692 static int ql_write_xgmac_reg(struct ql_adapter
*qdev
, u32 reg
, u32 data
)
695 /* wait for reg to come ready */
696 status
= ql_wait_reg_rdy(qdev
,
697 XGMAC_ADDR
, XGMAC_ADDR_RDY
, XGMAC_ADDR_XME
);
700 /* write the data to the data reg */
701 ql_write32(qdev
, XGMAC_DATA
, data
);
702 /* trigger the write */
703 ql_write32(qdev
, XGMAC_ADDR
, reg
);
707 /* xgmac register are located behind the xgmac_addr and xgmac_data
708 * register pair. Each read/write requires us to wait for the ready
709 * bit before reading/writing the data.
711 int ql_read_xgmac_reg(struct ql_adapter
*qdev
, u32 reg
, u32
*data
)
714 /* wait for reg to come ready */
715 status
= ql_wait_reg_rdy(qdev
,
716 XGMAC_ADDR
, XGMAC_ADDR_RDY
, XGMAC_ADDR_XME
);
719 /* set up for reg read */
720 ql_write32(qdev
, XGMAC_ADDR
, reg
| XGMAC_ADDR_R
);
721 /* wait for reg to come ready */
722 status
= ql_wait_reg_rdy(qdev
,
723 XGMAC_ADDR
, XGMAC_ADDR_RDY
, XGMAC_ADDR_XME
);
727 *data
= ql_read32(qdev
, XGMAC_DATA
);
732 /* This is used for reading the 64-bit statistics regs. */
733 int ql_read_xgmac_reg64(struct ql_adapter
*qdev
, u32 reg
, u64
*data
)
739 status
= ql_read_xgmac_reg(qdev
, reg
, &lo
);
743 status
= ql_read_xgmac_reg(qdev
, reg
+ 4, &hi
);
747 *data
= (u64
) lo
| ((u64
) hi
<< 32);
753 /* Take the MAC Core out of reset.
754 * Enable statistics counting.
755 * Take the transmitter/receiver out of reset.
756 * This functionality may be done in the MPI firmware at a
759 static int ql_port_initialize(struct ql_adapter
*qdev
)
764 if (ql_sem_trylock(qdev
, qdev
->xg_sem_mask
)) {
765 /* Another function has the semaphore, so
766 * wait for the port init bit to come ready.
768 QPRINTK(qdev
, LINK
, INFO
,
769 "Another function has the semaphore, so wait for the port init bit to come ready.\n");
770 status
= ql_wait_reg_rdy(qdev
, STS
, qdev
->port_init
, 0);
772 QPRINTK(qdev
, LINK
, CRIT
,
773 "Port initialize timed out.\n");
778 QPRINTK(qdev
, LINK
, INFO
, "Got xgmac semaphore!.\n");
779 /* Set the core reset. */
780 status
= ql_read_xgmac_reg(qdev
, GLOBAL_CFG
, &data
);
783 data
|= GLOBAL_CFG_RESET
;
784 status
= ql_write_xgmac_reg(qdev
, GLOBAL_CFG
, data
);
788 /* Clear the core reset and turn on jumbo for receiver. */
789 data
&= ~GLOBAL_CFG_RESET
; /* Clear core reset. */
790 data
|= GLOBAL_CFG_JUMBO
; /* Turn on jumbo. */
791 data
|= GLOBAL_CFG_TX_STAT_EN
;
792 data
|= GLOBAL_CFG_RX_STAT_EN
;
793 status
= ql_write_xgmac_reg(qdev
, GLOBAL_CFG
, data
);
797 /* Enable transmitter, and clear it's reset. */
798 status
= ql_read_xgmac_reg(qdev
, TX_CFG
, &data
);
801 data
&= ~TX_CFG_RESET
; /* Clear the TX MAC reset. */
802 data
|= TX_CFG_EN
; /* Enable the transmitter. */
803 status
= ql_write_xgmac_reg(qdev
, TX_CFG
, data
);
807 /* Enable receiver and clear it's reset. */
808 status
= ql_read_xgmac_reg(qdev
, RX_CFG
, &data
);
811 data
&= ~RX_CFG_RESET
; /* Clear the RX MAC reset. */
812 data
|= RX_CFG_EN
; /* Enable the receiver. */
813 status
= ql_write_xgmac_reg(qdev
, RX_CFG
, data
);
819 ql_write_xgmac_reg(qdev
, MAC_TX_PARAMS
, MAC_TX_PARAMS_JUMBO
| (0x2580 << 16));
823 ql_write_xgmac_reg(qdev
, MAC_RX_PARAMS
, 0x2580);
827 /* Signal to the world that the port is enabled. */
828 ql_write32(qdev
, STS
, ((qdev
->port_init
<< 16) | qdev
->port_init
));
830 ql_sem_unlock(qdev
, qdev
->xg_sem_mask
);
834 /* Get the next large buffer. */
835 struct bq_desc
*ql_get_curr_lbuf(struct rx_ring
*rx_ring
)
837 struct bq_desc
*lbq_desc
= &rx_ring
->lbq
[rx_ring
->lbq_curr_idx
];
838 rx_ring
->lbq_curr_idx
++;
839 if (rx_ring
->lbq_curr_idx
== rx_ring
->lbq_len
)
840 rx_ring
->lbq_curr_idx
= 0;
841 rx_ring
->lbq_free_cnt
++;
845 /* Get the next small buffer. */
846 struct bq_desc
*ql_get_curr_sbuf(struct rx_ring
*rx_ring
)
848 struct bq_desc
*sbq_desc
= &rx_ring
->sbq
[rx_ring
->sbq_curr_idx
];
849 rx_ring
->sbq_curr_idx
++;
850 if (rx_ring
->sbq_curr_idx
== rx_ring
->sbq_len
)
851 rx_ring
->sbq_curr_idx
= 0;
852 rx_ring
->sbq_free_cnt
++;
856 /* Update an rx ring index. */
857 static void ql_update_cq(struct rx_ring
*rx_ring
)
859 rx_ring
->cnsmr_idx
++;
860 rx_ring
->curr_entry
++;
861 if (unlikely(rx_ring
->cnsmr_idx
== rx_ring
->cq_len
)) {
862 rx_ring
->cnsmr_idx
= 0;
863 rx_ring
->curr_entry
= rx_ring
->cq_base
;
867 static void ql_write_cq_idx(struct rx_ring
*rx_ring
)
869 ql_write_db_reg(rx_ring
->cnsmr_idx
, rx_ring
->cnsmr_idx_db_reg
);
872 /* Process (refill) a large buffer queue. */
873 static void ql_update_lbq(struct ql_adapter
*qdev
, struct rx_ring
*rx_ring
)
875 int clean_idx
= rx_ring
->lbq_clean_idx
;
876 struct bq_desc
*lbq_desc
;
877 struct bq_element
*bq
;
881 while (rx_ring
->lbq_free_cnt
> 16) {
882 for (i
= 0; i
< 16; i
++) {
883 QPRINTK(qdev
, RX_STATUS
, DEBUG
,
884 "lbq: try cleaning clean_idx = %d.\n",
886 lbq_desc
= &rx_ring
->lbq
[clean_idx
];
888 if (lbq_desc
->p
.lbq_page
== NULL
) {
889 QPRINTK(qdev
, RX_STATUS
, DEBUG
,
890 "lbq: getting new page for index %d.\n",
892 lbq_desc
->p
.lbq_page
= alloc_page(GFP_ATOMIC
);
893 if (lbq_desc
->p
.lbq_page
== NULL
) {
894 QPRINTK(qdev
, RX_STATUS
, ERR
,
895 "Couldn't get a page.\n");
898 map
= pci_map_page(qdev
->pdev
,
899 lbq_desc
->p
.lbq_page
,
902 if (pci_dma_mapping_error(qdev
->pdev
, map
)) {
903 QPRINTK(qdev
, RX_STATUS
, ERR
,
904 "PCI mapping failed.\n");
907 pci_unmap_addr_set(lbq_desc
, mapaddr
, map
);
908 pci_unmap_len_set(lbq_desc
, maplen
, PAGE_SIZE
);
909 bq
->addr_lo
= /*lbq_desc->addr_lo = */
911 bq
->addr_hi
= /*lbq_desc->addr_hi = */
912 cpu_to_le32(map
>> 32);
915 if (clean_idx
== rx_ring
->lbq_len
)
919 rx_ring
->lbq_clean_idx
= clean_idx
;
920 rx_ring
->lbq_prod_idx
+= 16;
921 if (rx_ring
->lbq_prod_idx
== rx_ring
->lbq_len
)
922 rx_ring
->lbq_prod_idx
= 0;
923 QPRINTK(qdev
, RX_STATUS
, DEBUG
,
924 "lbq: updating prod idx = %d.\n",
925 rx_ring
->lbq_prod_idx
);
926 ql_write_db_reg(rx_ring
->lbq_prod_idx
,
927 rx_ring
->lbq_prod_idx_db_reg
);
928 rx_ring
->lbq_free_cnt
-= 16;
932 /* Process (refill) a small buffer queue. */
933 static void ql_update_sbq(struct ql_adapter
*qdev
, struct rx_ring
*rx_ring
)
935 int clean_idx
= rx_ring
->sbq_clean_idx
;
936 struct bq_desc
*sbq_desc
;
937 struct bq_element
*bq
;
941 while (rx_ring
->sbq_free_cnt
> 16) {
942 for (i
= 0; i
< 16; i
++) {
943 sbq_desc
= &rx_ring
->sbq
[clean_idx
];
944 QPRINTK(qdev
, RX_STATUS
, DEBUG
,
945 "sbq: try cleaning clean_idx = %d.\n",
948 if (sbq_desc
->p
.skb
== NULL
) {
949 QPRINTK(qdev
, RX_STATUS
, DEBUG
,
950 "sbq: getting new skb for index %d.\n",
953 netdev_alloc_skb(qdev
->ndev
,
954 rx_ring
->sbq_buf_size
);
955 if (sbq_desc
->p
.skb
== NULL
) {
956 QPRINTK(qdev
, PROBE
, ERR
,
957 "Couldn't get an skb.\n");
958 rx_ring
->sbq_clean_idx
= clean_idx
;
961 skb_reserve(sbq_desc
->p
.skb
, QLGE_SB_PAD
);
962 map
= pci_map_single(qdev
->pdev
,
963 sbq_desc
->p
.skb
->data
,
964 rx_ring
->sbq_buf_size
/
965 2, PCI_DMA_FROMDEVICE
);
966 pci_unmap_addr_set(sbq_desc
, mapaddr
, map
);
967 pci_unmap_len_set(sbq_desc
, maplen
,
968 rx_ring
->sbq_buf_size
/ 2);
969 bq
->addr_lo
= cpu_to_le32(map
);
970 bq
->addr_hi
= cpu_to_le32(map
>> 32);
974 if (clean_idx
== rx_ring
->sbq_len
)
977 rx_ring
->sbq_clean_idx
= clean_idx
;
978 rx_ring
->sbq_prod_idx
+= 16;
979 if (rx_ring
->sbq_prod_idx
== rx_ring
->sbq_len
)
980 rx_ring
->sbq_prod_idx
= 0;
981 QPRINTK(qdev
, RX_STATUS
, DEBUG
,
982 "sbq: updating prod idx = %d.\n",
983 rx_ring
->sbq_prod_idx
);
984 ql_write_db_reg(rx_ring
->sbq_prod_idx
,
985 rx_ring
->sbq_prod_idx_db_reg
);
987 rx_ring
->sbq_free_cnt
-= 16;
991 static void ql_update_buffer_queues(struct ql_adapter
*qdev
,
992 struct rx_ring
*rx_ring
)
994 ql_update_sbq(qdev
, rx_ring
);
995 ql_update_lbq(qdev
, rx_ring
);
998 /* Unmaps tx buffers. Can be called from send() if a pci mapping
999 * fails at some stage, or from the interrupt when a tx completes.
1001 static void ql_unmap_send(struct ql_adapter
*qdev
,
1002 struct tx_ring_desc
*tx_ring_desc
, int mapped
)
1005 for (i
= 0; i
< mapped
; i
++) {
1006 if (i
== 0 || (i
== 7 && mapped
> 7)) {
1008 * Unmap the skb->data area, or the
1009 * external sglist (AKA the Outbound
1010 * Address List (OAL)).
1011 * If its the zeroeth element, then it's
1012 * the skb->data area. If it's the 7th
1013 * element and there is more than 6 frags,
1017 QPRINTK(qdev
, TX_DONE
, DEBUG
,
1018 "unmapping OAL area.\n");
1020 pci_unmap_single(qdev
->pdev
,
1021 pci_unmap_addr(&tx_ring_desc
->map
[i
],
1023 pci_unmap_len(&tx_ring_desc
->map
[i
],
1027 QPRINTK(qdev
, TX_DONE
, DEBUG
, "unmapping frag %d.\n",
1029 pci_unmap_page(qdev
->pdev
,
1030 pci_unmap_addr(&tx_ring_desc
->map
[i
],
1032 pci_unmap_len(&tx_ring_desc
->map
[i
],
1033 maplen
), PCI_DMA_TODEVICE
);
1039 /* Map the buffers for this transmit. This will return
1040 * NETDEV_TX_BUSY or NETDEV_TX_OK based on success.
1042 static int ql_map_send(struct ql_adapter
*qdev
,
1043 struct ob_mac_iocb_req
*mac_iocb_ptr
,
1044 struct sk_buff
*skb
, struct tx_ring_desc
*tx_ring_desc
)
1046 int len
= skb_headlen(skb
);
1048 int frag_idx
, err
, map_idx
= 0;
1049 struct tx_buf_desc
*tbd
= mac_iocb_ptr
->tbd
;
1050 int frag_cnt
= skb_shinfo(skb
)->nr_frags
;
1053 QPRINTK(qdev
, TX_QUEUED
, DEBUG
, "frag_cnt = %d.\n", frag_cnt
);
1056 * Map the skb buffer first.
1058 map
= pci_map_single(qdev
->pdev
, skb
->data
, len
, PCI_DMA_TODEVICE
);
1060 err
= pci_dma_mapping_error(qdev
->pdev
, map
);
1062 QPRINTK(qdev
, TX_QUEUED
, ERR
,
1063 "PCI mapping failed with error: %d\n", err
);
1065 return NETDEV_TX_BUSY
;
1068 tbd
->len
= cpu_to_le32(len
);
1069 tbd
->addr
= cpu_to_le64(map
);
1070 pci_unmap_addr_set(&tx_ring_desc
->map
[map_idx
], mapaddr
, map
);
1071 pci_unmap_len_set(&tx_ring_desc
->map
[map_idx
], maplen
, len
);
1075 * This loop fills the remainder of the 8 address descriptors
1076 * in the IOCB. If there are more than 7 fragments, then the
1077 * eighth address desc will point to an external list (OAL).
1078 * When this happens, the remainder of the frags will be stored
1081 for (frag_idx
= 0; frag_idx
< frag_cnt
; frag_idx
++, map_idx
++) {
1082 skb_frag_t
*frag
= &skb_shinfo(skb
)->frags
[frag_idx
];
1084 if (frag_idx
== 6 && frag_cnt
> 7) {
1085 /* Let's tack on an sglist.
1086 * Our control block will now
1088 * iocb->seg[0] = skb->data
1089 * iocb->seg[1] = frag[0]
1090 * iocb->seg[2] = frag[1]
1091 * iocb->seg[3] = frag[2]
1092 * iocb->seg[4] = frag[3]
1093 * iocb->seg[5] = frag[4]
1094 * iocb->seg[6] = frag[5]
1095 * iocb->seg[7] = ptr to OAL (external sglist)
1096 * oal->seg[0] = frag[6]
1097 * oal->seg[1] = frag[7]
1098 * oal->seg[2] = frag[8]
1099 * oal->seg[3] = frag[9]
1100 * oal->seg[4] = frag[10]
1103 /* Tack on the OAL in the eighth segment of IOCB. */
1104 map
= pci_map_single(qdev
->pdev
, &tx_ring_desc
->oal
,
1107 err
= pci_dma_mapping_error(qdev
->pdev
, map
);
1109 QPRINTK(qdev
, TX_QUEUED
, ERR
,
1110 "PCI mapping outbound address list with error: %d\n",
1115 tbd
->addr
= cpu_to_le64(map
);
1117 * The length is the number of fragments
1118 * that remain to be mapped times the length
1119 * of our sglist (OAL).
1122 cpu_to_le32((sizeof(struct tx_buf_desc
) *
1123 (frag_cnt
- frag_idx
)) | TX_DESC_C
);
1124 pci_unmap_addr_set(&tx_ring_desc
->map
[map_idx
], mapaddr
,
1126 pci_unmap_len_set(&tx_ring_desc
->map
[map_idx
], maplen
,
1127 sizeof(struct oal
));
1128 tbd
= (struct tx_buf_desc
*)&tx_ring_desc
->oal
;
1133 pci_map_page(qdev
->pdev
, frag
->page
,
1134 frag
->page_offset
, frag
->size
,
1137 err
= pci_dma_mapping_error(qdev
->pdev
, map
);
1139 QPRINTK(qdev
, TX_QUEUED
, ERR
,
1140 "PCI mapping frags failed with error: %d.\n",
1145 tbd
->addr
= cpu_to_le64(map
);
1146 tbd
->len
= cpu_to_le32(frag
->size
);
1147 pci_unmap_addr_set(&tx_ring_desc
->map
[map_idx
], mapaddr
, map
);
1148 pci_unmap_len_set(&tx_ring_desc
->map
[map_idx
], maplen
,
1152 /* Save the number of segments we've mapped. */
1153 tx_ring_desc
->map_cnt
= map_idx
;
1154 /* Terminate the last segment. */
1155 tbd
->len
= cpu_to_le32(le32_to_cpu(tbd
->len
) | TX_DESC_E
);
1156 return NETDEV_TX_OK
;
1160 * If the first frag mapping failed, then i will be zero.
1161 * This causes the unmap of the skb->data area. Otherwise
1162 * we pass in the number of frags that mapped successfully
1163 * so they can be umapped.
1165 ql_unmap_send(qdev
, tx_ring_desc
, map_idx
);
1166 return NETDEV_TX_BUSY
;
1169 void ql_realign_skb(struct sk_buff
*skb
, int len
)
1171 void *temp_addr
= skb
->data
;
1173 /* Undo the skb_reserve(skb,32) we did before
1174 * giving to hardware, and realign data on
1175 * a 2-byte boundary.
1177 skb
->data
-= QLGE_SB_PAD
- NET_IP_ALIGN
;
1178 skb
->tail
-= QLGE_SB_PAD
- NET_IP_ALIGN
;
1179 skb_copy_to_linear_data(skb
, temp_addr
,
1184 * This function builds an skb for the given inbound
1185 * completion. It will be rewritten for readability in the near
1186 * future, but for not it works well.
1188 static struct sk_buff
*ql_build_rx_skb(struct ql_adapter
*qdev
,
1189 struct rx_ring
*rx_ring
,
1190 struct ib_mac_iocb_rsp
*ib_mac_rsp
)
1192 struct bq_desc
*lbq_desc
;
1193 struct bq_desc
*sbq_desc
;
1194 struct sk_buff
*skb
= NULL
;
1195 u32 length
= le32_to_cpu(ib_mac_rsp
->data_len
);
1196 u32 hdr_len
= le32_to_cpu(ib_mac_rsp
->hdr_len
);
1199 * Handle the header buffer if present.
1201 if (ib_mac_rsp
->flags4
& IB_MAC_IOCB_RSP_HV
&&
1202 ib_mac_rsp
->flags4
& IB_MAC_IOCB_RSP_HS
) {
1203 QPRINTK(qdev
, RX_STATUS
, DEBUG
, "Header of %d bytes in small buffer.\n", hdr_len
);
1205 * Headers fit nicely into a small buffer.
1207 sbq_desc
= ql_get_curr_sbuf(rx_ring
);
1208 pci_unmap_single(qdev
->pdev
,
1209 pci_unmap_addr(sbq_desc
, mapaddr
),
1210 pci_unmap_len(sbq_desc
, maplen
),
1211 PCI_DMA_FROMDEVICE
);
1212 skb
= sbq_desc
->p
.skb
;
1213 ql_realign_skb(skb
, hdr_len
);
1214 skb_put(skb
, hdr_len
);
1215 sbq_desc
->p
.skb
= NULL
;
1219 * Handle the data buffer(s).
1221 if (unlikely(!length
)) { /* Is there data too? */
1222 QPRINTK(qdev
, RX_STATUS
, DEBUG
,
1223 "No Data buffer in this packet.\n");
1227 if (ib_mac_rsp
->flags3
& IB_MAC_IOCB_RSP_DS
) {
1228 if (ib_mac_rsp
->flags4
& IB_MAC_IOCB_RSP_HS
) {
1229 QPRINTK(qdev
, RX_STATUS
, DEBUG
,
1230 "Headers in small, data of %d bytes in small, combine them.\n", length
);
1232 * Data is less than small buffer size so it's
1233 * stuffed in a small buffer.
1234 * For this case we append the data
1235 * from the "data" small buffer to the "header" small
1238 sbq_desc
= ql_get_curr_sbuf(rx_ring
);
1239 pci_dma_sync_single_for_cpu(qdev
->pdev
,
1241 (sbq_desc
, mapaddr
),
1244 PCI_DMA_FROMDEVICE
);
1245 memcpy(skb_put(skb
, length
),
1246 sbq_desc
->p
.skb
->data
, length
);
1247 pci_dma_sync_single_for_device(qdev
->pdev
,
1254 PCI_DMA_FROMDEVICE
);
1256 QPRINTK(qdev
, RX_STATUS
, DEBUG
,
1257 "%d bytes in a single small buffer.\n", length
);
1258 sbq_desc
= ql_get_curr_sbuf(rx_ring
);
1259 skb
= sbq_desc
->p
.skb
;
1260 ql_realign_skb(skb
, length
);
1261 skb_put(skb
, length
);
1262 pci_unmap_single(qdev
->pdev
,
1263 pci_unmap_addr(sbq_desc
,
1265 pci_unmap_len(sbq_desc
,
1267 PCI_DMA_FROMDEVICE
);
1268 sbq_desc
->p
.skb
= NULL
;
1270 } else if (ib_mac_rsp
->flags3
& IB_MAC_IOCB_RSP_DL
) {
1271 if (ib_mac_rsp
->flags4
& IB_MAC_IOCB_RSP_HS
) {
1272 QPRINTK(qdev
, RX_STATUS
, DEBUG
,
1273 "Header in small, %d bytes in large. Chain large to small!\n", length
);
1275 * The data is in a single large buffer. We
1276 * chain it to the header buffer's skb and let
1279 lbq_desc
= ql_get_curr_lbuf(rx_ring
);
1280 pci_unmap_page(qdev
->pdev
,
1281 pci_unmap_addr(lbq_desc
,
1283 pci_unmap_len(lbq_desc
, maplen
),
1284 PCI_DMA_FROMDEVICE
);
1285 QPRINTK(qdev
, RX_STATUS
, DEBUG
,
1286 "Chaining page to skb.\n");
1287 skb_fill_page_desc(skb
, 0, lbq_desc
->p
.lbq_page
,
1290 skb
->data_len
+= length
;
1291 skb
->truesize
+= length
;
1292 lbq_desc
->p
.lbq_page
= NULL
;
1295 * The headers and data are in a single large buffer. We
1296 * copy it to a new skb and let it go. This can happen with
1297 * jumbo mtu on a non-TCP/UDP frame.
1299 lbq_desc
= ql_get_curr_lbuf(rx_ring
);
1300 skb
= netdev_alloc_skb(qdev
->ndev
, length
);
1302 QPRINTK(qdev
, PROBE
, DEBUG
,
1303 "No skb available, drop the packet.\n");
1306 skb_reserve(skb
, NET_IP_ALIGN
);
1307 QPRINTK(qdev
, RX_STATUS
, DEBUG
,
1308 "%d bytes of headers and data in large. Chain page to new skb and pull tail.\n", length
);
1309 skb_fill_page_desc(skb
, 0, lbq_desc
->p
.lbq_page
,
1312 skb
->data_len
+= length
;
1313 skb
->truesize
+= length
;
1315 lbq_desc
->p
.lbq_page
= NULL
;
1316 __pskb_pull_tail(skb
,
1317 (ib_mac_rsp
->flags2
& IB_MAC_IOCB_RSP_V
) ?
1318 VLAN_ETH_HLEN
: ETH_HLEN
);
1322 * The data is in a chain of large buffers
1323 * pointed to by a small buffer. We loop
1324 * thru and chain them to the our small header
1326 * frags: There are 18 max frags and our small
1327 * buffer will hold 32 of them. The thing is,
1328 * we'll use 3 max for our 9000 byte jumbo
1329 * frames. If the MTU goes up we could
1330 * eventually be in trouble.
1332 int size
, offset
, i
= 0;
1333 struct bq_element
*bq
, bq_array
[8];
1334 sbq_desc
= ql_get_curr_sbuf(rx_ring
);
1335 pci_unmap_single(qdev
->pdev
,
1336 pci_unmap_addr(sbq_desc
, mapaddr
),
1337 pci_unmap_len(sbq_desc
, maplen
),
1338 PCI_DMA_FROMDEVICE
);
1339 if (!(ib_mac_rsp
->flags4
& IB_MAC_IOCB_RSP_HS
)) {
1341 * This is an non TCP/UDP IP frame, so
1342 * the headers aren't split into a small
1343 * buffer. We have to use the small buffer
1344 * that contains our sg list as our skb to
1345 * send upstairs. Copy the sg list here to
1346 * a local buffer and use it to find the
1349 QPRINTK(qdev
, RX_STATUS
, DEBUG
,
1350 "%d bytes of headers & data in chain of large.\n", length
);
1351 skb
= sbq_desc
->p
.skb
;
1353 memcpy(bq
, skb
->data
, sizeof(bq_array
));
1354 sbq_desc
->p
.skb
= NULL
;
1355 skb_reserve(skb
, NET_IP_ALIGN
);
1357 QPRINTK(qdev
, RX_STATUS
, DEBUG
,
1358 "Headers in small, %d bytes of data in chain of large.\n", length
);
1359 bq
= (struct bq_element
*)sbq_desc
->p
.skb
->data
;
1361 while (length
> 0) {
1362 lbq_desc
= ql_get_curr_lbuf(rx_ring
);
1363 if ((bq
->addr_lo
& ~BQ_MASK
) != lbq_desc
->bq
->addr_lo
) {
1364 QPRINTK(qdev
, RX_STATUS
, ERR
,
1365 "Panic!!! bad large buffer address, expected 0x%.08x, got 0x%.08x.\n",
1366 lbq_desc
->bq
->addr_lo
, bq
->addr_lo
);
1369 pci_unmap_page(qdev
->pdev
,
1370 pci_unmap_addr(lbq_desc
,
1372 pci_unmap_len(lbq_desc
,
1374 PCI_DMA_FROMDEVICE
);
1375 size
= (length
< PAGE_SIZE
) ? length
: PAGE_SIZE
;
1378 QPRINTK(qdev
, RX_STATUS
, DEBUG
,
1379 "Adding page %d to skb for %d bytes.\n",
1381 skb_fill_page_desc(skb
, i
, lbq_desc
->p
.lbq_page
,
1384 skb
->data_len
+= size
;
1385 skb
->truesize
+= size
;
1387 lbq_desc
->p
.lbq_page
= NULL
;
1391 __pskb_pull_tail(skb
, (ib_mac_rsp
->flags2
& IB_MAC_IOCB_RSP_V
) ?
1392 VLAN_ETH_HLEN
: ETH_HLEN
);
1397 /* Process an inbound completion from an rx ring. */
1398 static void ql_process_mac_rx_intr(struct ql_adapter
*qdev
,
1399 struct rx_ring
*rx_ring
,
1400 struct ib_mac_iocb_rsp
*ib_mac_rsp
)
1402 struct net_device
*ndev
= qdev
->ndev
;
1403 struct sk_buff
*skb
= NULL
;
1405 QL_DUMP_IB_MAC_RSP(ib_mac_rsp
);
1407 skb
= ql_build_rx_skb(qdev
, rx_ring
, ib_mac_rsp
);
1408 if (unlikely(!skb
)) {
1409 QPRINTK(qdev
, RX_STATUS
, DEBUG
,
1410 "No skb available, drop packet.\n");
1414 prefetch(skb
->data
);
1416 if (ib_mac_rsp
->flags1
& IB_MAC_IOCB_RSP_M_MASK
) {
1417 QPRINTK(qdev
, RX_STATUS
, DEBUG
, "%s%s%s Multicast.\n",
1418 (ib_mac_rsp
->flags1
& IB_MAC_IOCB_RSP_M_MASK
) ==
1419 IB_MAC_IOCB_RSP_M_HASH
? "Hash" : "",
1420 (ib_mac_rsp
->flags1
& IB_MAC_IOCB_RSP_M_MASK
) ==
1421 IB_MAC_IOCB_RSP_M_REG
? "Registered" : "",
1422 (ib_mac_rsp
->flags1
& IB_MAC_IOCB_RSP_M_MASK
) ==
1423 IB_MAC_IOCB_RSP_M_PROM
? "Promiscuous" : "");
1425 if (ib_mac_rsp
->flags2
& IB_MAC_IOCB_RSP_P
) {
1426 QPRINTK(qdev
, RX_STATUS
, DEBUG
, "Promiscuous Packet.\n");
1428 if (ib_mac_rsp
->flags1
& (IB_MAC_IOCB_RSP_IE
| IB_MAC_IOCB_RSP_TE
)) {
1429 QPRINTK(qdev
, RX_STATUS
, ERR
,
1430 "Bad checksum for this %s packet.\n",
1432 flags2
& IB_MAC_IOCB_RSP_T
) ? "TCP" : "UDP"));
1433 skb
->ip_summed
= CHECKSUM_NONE
;
1434 } else if (qdev
->rx_csum
&&
1435 ((ib_mac_rsp
->flags2
& IB_MAC_IOCB_RSP_T
) ||
1436 ((ib_mac_rsp
->flags2
& IB_MAC_IOCB_RSP_U
) &&
1437 !(ib_mac_rsp
->flags1
& IB_MAC_IOCB_RSP_NU
)))) {
1438 QPRINTK(qdev
, RX_STATUS
, DEBUG
, "RX checksum done!\n");
1439 skb
->ip_summed
= CHECKSUM_UNNECESSARY
;
1441 qdev
->stats
.rx_packets
++;
1442 qdev
->stats
.rx_bytes
+= skb
->len
;
1443 skb
->protocol
= eth_type_trans(skb
, ndev
);
1444 if (qdev
->vlgrp
&& (ib_mac_rsp
->flags2
& IB_MAC_IOCB_RSP_V
)) {
1445 QPRINTK(qdev
, RX_STATUS
, DEBUG
,
1446 "Passing a VLAN packet upstream.\n");
1447 vlan_hwaccel_rx(skb
, qdev
->vlgrp
,
1448 le16_to_cpu(ib_mac_rsp
->vlan_id
));
1450 QPRINTK(qdev
, RX_STATUS
, DEBUG
,
1451 "Passing a normal packet upstream.\n");
1454 ndev
->last_rx
= jiffies
;
1457 /* Process an outbound completion from an rx ring. */
1458 static void ql_process_mac_tx_intr(struct ql_adapter
*qdev
,
1459 struct ob_mac_iocb_rsp
*mac_rsp
)
1461 struct tx_ring
*tx_ring
;
1462 struct tx_ring_desc
*tx_ring_desc
;
1464 QL_DUMP_OB_MAC_RSP(mac_rsp
);
1465 tx_ring
= &qdev
->tx_ring
[mac_rsp
->txq_idx
];
1466 tx_ring_desc
= &tx_ring
->q
[mac_rsp
->tid
];
1467 ql_unmap_send(qdev
, tx_ring_desc
, tx_ring_desc
->map_cnt
);
1468 qdev
->stats
.tx_bytes
+= tx_ring_desc
->map_cnt
;
1469 qdev
->stats
.tx_packets
++;
1470 dev_kfree_skb(tx_ring_desc
->skb
);
1471 tx_ring_desc
->skb
= NULL
;
1473 if (unlikely(mac_rsp
->flags1
& (OB_MAC_IOCB_RSP_E
|
1476 OB_MAC_IOCB_RSP_P
| OB_MAC_IOCB_RSP_B
))) {
1477 if (mac_rsp
->flags1
& OB_MAC_IOCB_RSP_E
) {
1478 QPRINTK(qdev
, TX_DONE
, WARNING
,
1479 "Total descriptor length did not match transfer length.\n");
1481 if (mac_rsp
->flags1
& OB_MAC_IOCB_RSP_S
) {
1482 QPRINTK(qdev
, TX_DONE
, WARNING
,
1483 "Frame too short to be legal, not sent.\n");
1485 if (mac_rsp
->flags1
& OB_MAC_IOCB_RSP_L
) {
1486 QPRINTK(qdev
, TX_DONE
, WARNING
,
1487 "Frame too long, but sent anyway.\n");
1489 if (mac_rsp
->flags1
& OB_MAC_IOCB_RSP_B
) {
1490 QPRINTK(qdev
, TX_DONE
, WARNING
,
1491 "PCI backplane error. Frame not sent.\n");
1494 atomic_inc(&tx_ring
->tx_count
);
1497 /* Fire up a handler to reset the MPI processor. */
1498 void ql_queue_fw_error(struct ql_adapter
*qdev
)
1500 netif_stop_queue(qdev
->ndev
);
1501 netif_carrier_off(qdev
->ndev
);
1502 queue_delayed_work(qdev
->workqueue
, &qdev
->mpi_reset_work
, 0);
1505 void ql_queue_asic_error(struct ql_adapter
*qdev
)
1507 netif_stop_queue(qdev
->ndev
);
1508 netif_carrier_off(qdev
->ndev
);
1509 ql_disable_interrupts(qdev
);
1510 queue_delayed_work(qdev
->workqueue
, &qdev
->asic_reset_work
, 0);
1513 static void ql_process_chip_ae_intr(struct ql_adapter
*qdev
,
1514 struct ib_ae_iocb_rsp
*ib_ae_rsp
)
1516 switch (ib_ae_rsp
->event
) {
1517 case MGMT_ERR_EVENT
:
1518 QPRINTK(qdev
, RX_ERR
, ERR
,
1519 "Management Processor Fatal Error.\n");
1520 ql_queue_fw_error(qdev
);
1523 case CAM_LOOKUP_ERR_EVENT
:
1524 QPRINTK(qdev
, LINK
, ERR
,
1525 "Multiple CAM hits lookup occurred.\n");
1526 QPRINTK(qdev
, DRV
, ERR
, "This event shouldn't occur.\n");
1527 ql_queue_asic_error(qdev
);
1530 case SOFT_ECC_ERROR_EVENT
:
1531 QPRINTK(qdev
, RX_ERR
, ERR
, "Soft ECC error detected.\n");
1532 ql_queue_asic_error(qdev
);
1535 case PCI_ERR_ANON_BUF_RD
:
1536 QPRINTK(qdev
, RX_ERR
, ERR
,
1537 "PCI error occurred when reading anonymous buffers from rx_ring %d.\n",
1539 ql_queue_asic_error(qdev
);
1543 QPRINTK(qdev
, DRV
, ERR
, "Unexpected event %d.\n",
1545 ql_queue_asic_error(qdev
);
1550 static int ql_clean_outbound_rx_ring(struct rx_ring
*rx_ring
)
1552 struct ql_adapter
*qdev
= rx_ring
->qdev
;
1553 u32 prod
= ql_read_sh_reg(rx_ring
->prod_idx_sh_reg
);
1554 struct ob_mac_iocb_rsp
*net_rsp
= NULL
;
1557 /* While there are entries in the completion queue. */
1558 while (prod
!= rx_ring
->cnsmr_idx
) {
1560 QPRINTK(qdev
, RX_STATUS
, DEBUG
,
1561 "cq_id = %d, prod = %d, cnsmr = %d.\n.", rx_ring
->cq_id
,
1562 prod
, rx_ring
->cnsmr_idx
);
1564 net_rsp
= (struct ob_mac_iocb_rsp
*)rx_ring
->curr_entry
;
1566 switch (net_rsp
->opcode
) {
1568 case OPCODE_OB_MAC_TSO_IOCB
:
1569 case OPCODE_OB_MAC_IOCB
:
1570 ql_process_mac_tx_intr(qdev
, net_rsp
);
1573 QPRINTK(qdev
, RX_STATUS
, DEBUG
,
1574 "Hit default case, not handled! dropping the packet, opcode = %x.\n",
1578 ql_update_cq(rx_ring
);
1579 prod
= ql_read_sh_reg(rx_ring
->prod_idx_sh_reg
);
1581 ql_write_cq_idx(rx_ring
);
1582 if (netif_queue_stopped(qdev
->ndev
) && net_rsp
!= NULL
) {
1583 struct tx_ring
*tx_ring
= &qdev
->tx_ring
[net_rsp
->txq_idx
];
1584 if (atomic_read(&tx_ring
->queue_stopped
) &&
1585 (atomic_read(&tx_ring
->tx_count
) > (tx_ring
->wq_len
/ 4)))
1587 * The queue got stopped because the tx_ring was full.
1588 * Wake it up, because it's now at least 25% empty.
1590 netif_wake_queue(qdev
->ndev
);
1596 static int ql_clean_inbound_rx_ring(struct rx_ring
*rx_ring
, int budget
)
1598 struct ql_adapter
*qdev
= rx_ring
->qdev
;
1599 u32 prod
= ql_read_sh_reg(rx_ring
->prod_idx_sh_reg
);
1600 struct ql_net_rsp_iocb
*net_rsp
;
1603 /* While there are entries in the completion queue. */
1604 while (prod
!= rx_ring
->cnsmr_idx
) {
1606 QPRINTK(qdev
, RX_STATUS
, DEBUG
,
1607 "cq_id = %d, prod = %d, cnsmr = %d.\n.", rx_ring
->cq_id
,
1608 prod
, rx_ring
->cnsmr_idx
);
1610 net_rsp
= rx_ring
->curr_entry
;
1612 switch (net_rsp
->opcode
) {
1613 case OPCODE_IB_MAC_IOCB
:
1614 ql_process_mac_rx_intr(qdev
, rx_ring
,
1615 (struct ib_mac_iocb_rsp
*)
1619 case OPCODE_IB_AE_IOCB
:
1620 ql_process_chip_ae_intr(qdev
, (struct ib_ae_iocb_rsp
*)
1625 QPRINTK(qdev
, RX_STATUS
, DEBUG
,
1626 "Hit default case, not handled! dropping the packet, opcode = %x.\n",
1631 ql_update_cq(rx_ring
);
1632 prod
= ql_read_sh_reg(rx_ring
->prod_idx_sh_reg
);
1633 if (count
== budget
)
1636 ql_update_buffer_queues(qdev
, rx_ring
);
1637 ql_write_cq_idx(rx_ring
);
1641 static int ql_napi_poll_msix(struct napi_struct
*napi
, int budget
)
1643 struct rx_ring
*rx_ring
= container_of(napi
, struct rx_ring
, napi
);
1644 struct ql_adapter
*qdev
= rx_ring
->qdev
;
1645 int work_done
= ql_clean_inbound_rx_ring(rx_ring
, budget
);
1647 QPRINTK(qdev
, RX_STATUS
, DEBUG
, "Enter, NAPI POLL cq_id = %d.\n",
1650 if (work_done
< budget
) {
1651 __netif_rx_complete(qdev
->ndev
, napi
);
1652 ql_enable_completion_interrupt(qdev
, rx_ring
->irq
);
1657 static void ql_vlan_rx_register(struct net_device
*ndev
, struct vlan_group
*grp
)
1659 struct ql_adapter
*qdev
= netdev_priv(ndev
);
1663 QPRINTK(qdev
, IFUP
, DEBUG
, "Turning on VLAN in NIC_RCV_CFG.\n");
1664 ql_write32(qdev
, NIC_RCV_CFG
, NIC_RCV_CFG_VLAN_MASK
|
1665 NIC_RCV_CFG_VLAN_MATCH_AND_NON
);
1667 QPRINTK(qdev
, IFUP
, DEBUG
,
1668 "Turning off VLAN in NIC_RCV_CFG.\n");
1669 ql_write32(qdev
, NIC_RCV_CFG
, NIC_RCV_CFG_VLAN_MASK
);
1673 static void ql_vlan_rx_add_vid(struct net_device
*ndev
, u16 vid
)
1675 struct ql_adapter
*qdev
= netdev_priv(ndev
);
1676 u32 enable_bit
= MAC_ADDR_E
;
1678 spin_lock(&qdev
->hw_lock
);
1679 if (ql_set_mac_addr_reg
1680 (qdev
, (u8
*) &enable_bit
, MAC_ADDR_TYPE_VLAN
, vid
)) {
1681 QPRINTK(qdev
, IFUP
, ERR
, "Failed to init vlan address.\n");
1683 spin_unlock(&qdev
->hw_lock
);
1686 static void ql_vlan_rx_kill_vid(struct net_device
*ndev
, u16 vid
)
1688 struct ql_adapter
*qdev
= netdev_priv(ndev
);
1691 spin_lock(&qdev
->hw_lock
);
1692 if (ql_set_mac_addr_reg
1693 (qdev
, (u8
*) &enable_bit
, MAC_ADDR_TYPE_VLAN
, vid
)) {
1694 QPRINTK(qdev
, IFUP
, ERR
, "Failed to clear vlan address.\n");
1696 spin_unlock(&qdev
->hw_lock
);
1700 /* Worker thread to process a given rx_ring that is dedicated
1701 * to outbound completions.
1703 static void ql_tx_clean(struct work_struct
*work
)
1705 struct rx_ring
*rx_ring
=
1706 container_of(work
, struct rx_ring
, rx_work
.work
);
1707 ql_clean_outbound_rx_ring(rx_ring
);
1708 ql_enable_completion_interrupt(rx_ring
->qdev
, rx_ring
->irq
);
1712 /* Worker thread to process a given rx_ring that is dedicated
1713 * to inbound completions.
1715 static void ql_rx_clean(struct work_struct
*work
)
1717 struct rx_ring
*rx_ring
=
1718 container_of(work
, struct rx_ring
, rx_work
.work
);
1719 ql_clean_inbound_rx_ring(rx_ring
, 64);
1720 ql_enable_completion_interrupt(rx_ring
->qdev
, rx_ring
->irq
);
1723 /* MSI-X Multiple Vector Interrupt Handler for outbound completions. */
1724 static irqreturn_t
qlge_msix_tx_isr(int irq
, void *dev_id
)
1726 struct rx_ring
*rx_ring
= dev_id
;
1727 queue_delayed_work_on(rx_ring
->cpu
, rx_ring
->qdev
->q_workqueue
,
1728 &rx_ring
->rx_work
, 0);
1732 /* MSI-X Multiple Vector Interrupt Handler for inbound completions. */
1733 static irqreturn_t
qlge_msix_rx_isr(int irq
, void *dev_id
)
1735 struct rx_ring
*rx_ring
= dev_id
;
1736 struct ql_adapter
*qdev
= rx_ring
->qdev
;
1737 netif_rx_schedule(qdev
->ndev
, &rx_ring
->napi
);
1741 /* This handles a fatal error, MPI activity, and the default
1742 * rx_ring in an MSI-X multiple vector environment.
1743 * In MSI/Legacy environment it also process the rest of
1746 static irqreturn_t
qlge_isr(int irq
, void *dev_id
)
1748 struct rx_ring
*rx_ring
= dev_id
;
1749 struct ql_adapter
*qdev
= rx_ring
->qdev
;
1750 struct intr_context
*intr_context
= &qdev
->intr_context
[0];
1755 spin_lock(&qdev
->hw_lock
);
1756 if (atomic_read(&qdev
->intr_context
[0].irq_cnt
)) {
1757 QPRINTK(qdev
, INTR
, DEBUG
, "Shared Interrupt, Not ours!\n");
1758 spin_unlock(&qdev
->hw_lock
);
1761 spin_unlock(&qdev
->hw_lock
);
1763 var
= ql_disable_completion_interrupt(qdev
, intr_context
->intr
);
1766 * Check for fatal error.
1769 ql_queue_asic_error(qdev
);
1770 QPRINTK(qdev
, INTR
, ERR
, "Got fatal error, STS = %x.\n", var
);
1771 var
= ql_read32(qdev
, ERR_STS
);
1772 QPRINTK(qdev
, INTR
, ERR
,
1773 "Resetting chip. Error Status Register = 0x%x\n", var
);
1778 * Check MPI processor activity.
1782 * We've got an async event or mailbox completion.
1783 * Handle it and clear the source of the interrupt.
1785 QPRINTK(qdev
, INTR
, ERR
, "Got MPI processor interrupt.\n");
1786 ql_disable_completion_interrupt(qdev
, intr_context
->intr
);
1787 queue_delayed_work_on(smp_processor_id(), qdev
->workqueue
,
1788 &qdev
->mpi_work
, 0);
1793 * Check the default queue and wake handler if active.
1795 rx_ring
= &qdev
->rx_ring
[0];
1796 if (ql_read_sh_reg(rx_ring
->prod_idx_sh_reg
) != rx_ring
->cnsmr_idx
) {
1797 QPRINTK(qdev
, INTR
, INFO
, "Waking handler for rx_ring[0].\n");
1798 ql_disable_completion_interrupt(qdev
, intr_context
->intr
);
1799 queue_delayed_work_on(smp_processor_id(), qdev
->q_workqueue
,
1800 &rx_ring
->rx_work
, 0);
1804 if (!test_bit(QL_MSIX_ENABLED
, &qdev
->flags
)) {
1806 * Start the DPC for each active queue.
1808 for (i
= 1; i
< qdev
->rx_ring_count
; i
++) {
1809 rx_ring
= &qdev
->rx_ring
[i
];
1810 if (ql_read_sh_reg(rx_ring
->prod_idx_sh_reg
) !=
1811 rx_ring
->cnsmr_idx
) {
1812 QPRINTK(qdev
, INTR
, INFO
,
1813 "Waking handler for rx_ring[%d].\n", i
);
1814 ql_disable_completion_interrupt(qdev
,
1817 if (i
< qdev
->rss_ring_first_cq_id
)
1818 queue_delayed_work_on(rx_ring
->cpu
,
1823 netif_rx_schedule(qdev
->ndev
,
1829 ql_enable_completion_interrupt(qdev
, intr_context
->intr
);
1830 return work_done
? IRQ_HANDLED
: IRQ_NONE
;
1833 static int ql_tso(struct sk_buff
*skb
, struct ob_mac_tso_iocb_req
*mac_iocb_ptr
)
1836 if (skb_is_gso(skb
)) {
1838 if (skb_header_cloned(skb
)) {
1839 err
= pskb_expand_head(skb
, 0, 0, GFP_ATOMIC
);
1844 mac_iocb_ptr
->opcode
= OPCODE_OB_MAC_TSO_IOCB
;
1845 mac_iocb_ptr
->flags3
|= OB_MAC_TSO_IOCB_IC
;
1846 mac_iocb_ptr
->frame_len
= cpu_to_le32((u32
) skb
->len
);
1847 mac_iocb_ptr
->total_hdrs_len
=
1848 cpu_to_le16(skb_transport_offset(skb
) + tcp_hdrlen(skb
));
1849 mac_iocb_ptr
->net_trans_offset
=
1850 cpu_to_le16(skb_network_offset(skb
) |
1851 skb_transport_offset(skb
)
1852 << OB_MAC_TRANSPORT_HDR_SHIFT
);
1853 mac_iocb_ptr
->mss
= cpu_to_le16(skb_shinfo(skb
)->gso_size
);
1854 mac_iocb_ptr
->flags2
|= OB_MAC_TSO_IOCB_LSO
;
1855 if (likely(skb
->protocol
== htons(ETH_P_IP
))) {
1856 struct iphdr
*iph
= ip_hdr(skb
);
1858 mac_iocb_ptr
->flags1
|= OB_MAC_TSO_IOCB_IP4
;
1859 tcp_hdr(skb
)->check
= ~csum_tcpudp_magic(iph
->saddr
,
1863 } else if (skb
->protocol
== htons(ETH_P_IPV6
)) {
1864 mac_iocb_ptr
->flags1
|= OB_MAC_TSO_IOCB_IP6
;
1865 tcp_hdr(skb
)->check
=
1866 ~csum_ipv6_magic(&ipv6_hdr(skb
)->saddr
,
1867 &ipv6_hdr(skb
)->daddr
,
1875 static void ql_hw_csum_setup(struct sk_buff
*skb
,
1876 struct ob_mac_tso_iocb_req
*mac_iocb_ptr
)
1879 struct iphdr
*iph
= ip_hdr(skb
);
1881 mac_iocb_ptr
->opcode
= OPCODE_OB_MAC_TSO_IOCB
;
1882 mac_iocb_ptr
->frame_len
= cpu_to_le32((u32
) skb
->len
);
1883 mac_iocb_ptr
->net_trans_offset
=
1884 cpu_to_le16(skb_network_offset(skb
) |
1885 skb_transport_offset(skb
) << OB_MAC_TRANSPORT_HDR_SHIFT
);
1887 mac_iocb_ptr
->flags1
|= OB_MAC_TSO_IOCB_IP4
;
1888 len
= (ntohs(iph
->tot_len
) - (iph
->ihl
<< 2));
1889 if (likely(iph
->protocol
== IPPROTO_TCP
)) {
1890 check
= &(tcp_hdr(skb
)->check
);
1891 mac_iocb_ptr
->flags2
|= OB_MAC_TSO_IOCB_TC
;
1892 mac_iocb_ptr
->total_hdrs_len
=
1893 cpu_to_le16(skb_transport_offset(skb
) +
1894 (tcp_hdr(skb
)->doff
<< 2));
1896 check
= &(udp_hdr(skb
)->check
);
1897 mac_iocb_ptr
->flags2
|= OB_MAC_TSO_IOCB_UC
;
1898 mac_iocb_ptr
->total_hdrs_len
=
1899 cpu_to_le16(skb_transport_offset(skb
) +
1900 sizeof(struct udphdr
));
1902 *check
= ~csum_tcpudp_magic(iph
->saddr
,
1903 iph
->daddr
, len
, iph
->protocol
, 0);
1906 static int qlge_send(struct sk_buff
*skb
, struct net_device
*ndev
)
1908 struct tx_ring_desc
*tx_ring_desc
;
1909 struct ob_mac_iocb_req
*mac_iocb_ptr
;
1910 struct ql_adapter
*qdev
= netdev_priv(ndev
);
1912 struct tx_ring
*tx_ring
;
1913 u32 tx_ring_idx
= (u32
) QL_TXQ_IDX(qdev
, skb
);
1915 tx_ring
= &qdev
->tx_ring
[tx_ring_idx
];
1917 if (unlikely(atomic_read(&tx_ring
->tx_count
) < 2)) {
1918 QPRINTK(qdev
, TX_QUEUED
, INFO
,
1919 "%s: shutting down tx queue %d du to lack of resources.\n",
1920 __func__
, tx_ring_idx
);
1921 netif_stop_queue(ndev
);
1922 atomic_inc(&tx_ring
->queue_stopped
);
1923 return NETDEV_TX_BUSY
;
1925 tx_ring_desc
= &tx_ring
->q
[tx_ring
->prod_idx
];
1926 mac_iocb_ptr
= tx_ring_desc
->queue_entry
;
1927 memset((void *)mac_iocb_ptr
, 0, sizeof(mac_iocb_ptr
));
1928 if (ql_map_send(qdev
, mac_iocb_ptr
, skb
, tx_ring_desc
) != NETDEV_TX_OK
) {
1929 QPRINTK(qdev
, TX_QUEUED
, ERR
, "Could not map the segments.\n");
1930 return NETDEV_TX_BUSY
;
1933 mac_iocb_ptr
->opcode
= OPCODE_OB_MAC_IOCB
;
1934 mac_iocb_ptr
->tid
= tx_ring_desc
->index
;
1935 /* We use the upper 32-bits to store the tx queue for this IO.
1936 * When we get the completion we can use it to establish the context.
1938 mac_iocb_ptr
->txq_idx
= tx_ring_idx
;
1939 tx_ring_desc
->skb
= skb
;
1941 mac_iocb_ptr
->frame_len
= cpu_to_le16((u16
) skb
->len
);
1943 if (qdev
->vlgrp
&& vlan_tx_tag_present(skb
)) {
1944 QPRINTK(qdev
, TX_QUEUED
, DEBUG
, "Adding a vlan tag %d.\n",
1945 vlan_tx_tag_get(skb
));
1946 mac_iocb_ptr
->flags3
|= OB_MAC_IOCB_V
;
1947 mac_iocb_ptr
->vlan_tci
= cpu_to_le16(vlan_tx_tag_get(skb
));
1949 tso
= ql_tso(skb
, (struct ob_mac_tso_iocb_req
*)mac_iocb_ptr
);
1951 dev_kfree_skb_any(skb
);
1952 return NETDEV_TX_OK
;
1953 } else if (unlikely(!tso
) && (skb
->ip_summed
== CHECKSUM_PARTIAL
)) {
1954 ql_hw_csum_setup(skb
,
1955 (struct ob_mac_tso_iocb_req
*)mac_iocb_ptr
);
1957 QL_DUMP_OB_MAC_IOCB(mac_iocb_ptr
);
1958 tx_ring
->prod_idx
++;
1959 if (tx_ring
->prod_idx
== tx_ring
->wq_len
)
1960 tx_ring
->prod_idx
= 0;
1963 ql_write_db_reg(tx_ring
->prod_idx
, tx_ring
->prod_idx_db_reg
);
1964 ndev
->trans_start
= jiffies
;
1965 QPRINTK(qdev
, TX_QUEUED
, DEBUG
, "tx queued, slot %d, len %d\n",
1966 tx_ring
->prod_idx
, skb
->len
);
1968 atomic_dec(&tx_ring
->tx_count
);
1969 return NETDEV_TX_OK
;
1972 static void ql_free_shadow_space(struct ql_adapter
*qdev
)
1974 if (qdev
->rx_ring_shadow_reg_area
) {
1975 pci_free_consistent(qdev
->pdev
,
1977 qdev
->rx_ring_shadow_reg_area
,
1978 qdev
->rx_ring_shadow_reg_dma
);
1979 qdev
->rx_ring_shadow_reg_area
= NULL
;
1981 if (qdev
->tx_ring_shadow_reg_area
) {
1982 pci_free_consistent(qdev
->pdev
,
1984 qdev
->tx_ring_shadow_reg_area
,
1985 qdev
->tx_ring_shadow_reg_dma
);
1986 qdev
->tx_ring_shadow_reg_area
= NULL
;
1990 static int ql_alloc_shadow_space(struct ql_adapter
*qdev
)
1992 qdev
->rx_ring_shadow_reg_area
=
1993 pci_alloc_consistent(qdev
->pdev
,
1994 PAGE_SIZE
, &qdev
->rx_ring_shadow_reg_dma
);
1995 if (qdev
->rx_ring_shadow_reg_area
== NULL
) {
1996 QPRINTK(qdev
, IFUP
, ERR
,
1997 "Allocation of RX shadow space failed.\n");
2000 qdev
->tx_ring_shadow_reg_area
=
2001 pci_alloc_consistent(qdev
->pdev
, PAGE_SIZE
,
2002 &qdev
->tx_ring_shadow_reg_dma
);
2003 if (qdev
->tx_ring_shadow_reg_area
== NULL
) {
2004 QPRINTK(qdev
, IFUP
, ERR
,
2005 "Allocation of TX shadow space failed.\n");
2006 goto err_wqp_sh_area
;
2011 pci_free_consistent(qdev
->pdev
,
2013 qdev
->rx_ring_shadow_reg_area
,
2014 qdev
->rx_ring_shadow_reg_dma
);
2018 static void ql_init_tx_ring(struct ql_adapter
*qdev
, struct tx_ring
*tx_ring
)
2020 struct tx_ring_desc
*tx_ring_desc
;
2022 struct ob_mac_iocb_req
*mac_iocb_ptr
;
2024 mac_iocb_ptr
= tx_ring
->wq_base
;
2025 tx_ring_desc
= tx_ring
->q
;
2026 for (i
= 0; i
< tx_ring
->wq_len
; i
++) {
2027 tx_ring_desc
->index
= i
;
2028 tx_ring_desc
->skb
= NULL
;
2029 tx_ring_desc
->queue_entry
= mac_iocb_ptr
;
2033 atomic_set(&tx_ring
->tx_count
, tx_ring
->wq_len
);
2034 atomic_set(&tx_ring
->queue_stopped
, 0);
2037 static void ql_free_tx_resources(struct ql_adapter
*qdev
,
2038 struct tx_ring
*tx_ring
)
2040 if (tx_ring
->wq_base
) {
2041 pci_free_consistent(qdev
->pdev
, tx_ring
->wq_size
,
2042 tx_ring
->wq_base
, tx_ring
->wq_base_dma
);
2043 tx_ring
->wq_base
= NULL
;
2049 static int ql_alloc_tx_resources(struct ql_adapter
*qdev
,
2050 struct tx_ring
*tx_ring
)
2053 pci_alloc_consistent(qdev
->pdev
, tx_ring
->wq_size
,
2054 &tx_ring
->wq_base_dma
);
2056 if ((tx_ring
->wq_base
== NULL
)
2057 || tx_ring
->wq_base_dma
& (tx_ring
->wq_size
- 1)) {
2058 QPRINTK(qdev
, IFUP
, ERR
, "tx_ring alloc failed.\n");
2062 kmalloc(tx_ring
->wq_len
* sizeof(struct tx_ring_desc
), GFP_KERNEL
);
2063 if (tx_ring
->q
== NULL
)
2068 pci_free_consistent(qdev
->pdev
, tx_ring
->wq_size
,
2069 tx_ring
->wq_base
, tx_ring
->wq_base_dma
);
2073 void ql_free_lbq_buffers(struct ql_adapter
*qdev
, struct rx_ring
*rx_ring
)
2076 struct bq_desc
*lbq_desc
;
2078 for (i
= 0; i
< rx_ring
->lbq_len
; i
++) {
2079 lbq_desc
= &rx_ring
->lbq
[i
];
2080 if (lbq_desc
->p
.lbq_page
) {
2081 pci_unmap_page(qdev
->pdev
,
2082 pci_unmap_addr(lbq_desc
, mapaddr
),
2083 pci_unmap_len(lbq_desc
, maplen
),
2084 PCI_DMA_FROMDEVICE
);
2086 put_page(lbq_desc
->p
.lbq_page
);
2087 lbq_desc
->p
.lbq_page
= NULL
;
2089 lbq_desc
->bq
->addr_lo
= 0;
2090 lbq_desc
->bq
->addr_hi
= 0;
2095 * Allocate and map a page for each element of the lbq.
2097 static int ql_alloc_lbq_buffers(struct ql_adapter
*qdev
,
2098 struct rx_ring
*rx_ring
)
2101 struct bq_desc
*lbq_desc
;
2103 struct bq_element
*bq
= rx_ring
->lbq_base
;
2105 for (i
= 0; i
< rx_ring
->lbq_len
; i
++) {
2106 lbq_desc
= &rx_ring
->lbq
[i
];
2107 memset(lbq_desc
, 0, sizeof(lbq_desc
));
2109 lbq_desc
->index
= i
;
2110 lbq_desc
->p
.lbq_page
= alloc_page(GFP_ATOMIC
);
2111 if (unlikely(!lbq_desc
->p
.lbq_page
)) {
2112 QPRINTK(qdev
, IFUP
, ERR
, "failed alloc_page().\n");
2115 map
= pci_map_page(qdev
->pdev
,
2116 lbq_desc
->p
.lbq_page
,
2117 0, PAGE_SIZE
, PCI_DMA_FROMDEVICE
);
2118 if (pci_dma_mapping_error(qdev
->pdev
, map
)) {
2119 QPRINTK(qdev
, IFUP
, ERR
,
2120 "PCI mapping failed.\n");
2123 pci_unmap_addr_set(lbq_desc
, mapaddr
, map
);
2124 pci_unmap_len_set(lbq_desc
, maplen
, PAGE_SIZE
);
2125 bq
->addr_lo
= cpu_to_le32(map
);
2126 bq
->addr_hi
= cpu_to_le32(map
>> 32);
2132 ql_free_lbq_buffers(qdev
, rx_ring
);
2136 void ql_free_sbq_buffers(struct ql_adapter
*qdev
, struct rx_ring
*rx_ring
)
2139 struct bq_desc
*sbq_desc
;
2141 for (i
= 0; i
< rx_ring
->sbq_len
; i
++) {
2142 sbq_desc
= &rx_ring
->sbq
[i
];
2143 if (sbq_desc
== NULL
) {
2144 QPRINTK(qdev
, IFUP
, ERR
, "sbq_desc %d is NULL.\n", i
);
2147 if (sbq_desc
->p
.skb
) {
2148 pci_unmap_single(qdev
->pdev
,
2149 pci_unmap_addr(sbq_desc
, mapaddr
),
2150 pci_unmap_len(sbq_desc
, maplen
),
2151 PCI_DMA_FROMDEVICE
);
2152 dev_kfree_skb(sbq_desc
->p
.skb
);
2153 sbq_desc
->p
.skb
= NULL
;
2155 if (sbq_desc
->bq
== NULL
) {
2156 QPRINTK(qdev
, IFUP
, ERR
, "sbq_desc->bq %d is NULL.\n",
2160 sbq_desc
->bq
->addr_lo
= 0;
2161 sbq_desc
->bq
->addr_hi
= 0;
2165 /* Allocate and map an skb for each element of the sbq. */
2166 static int ql_alloc_sbq_buffers(struct ql_adapter
*qdev
,
2167 struct rx_ring
*rx_ring
)
2170 struct bq_desc
*sbq_desc
;
2171 struct sk_buff
*skb
;
2173 struct bq_element
*bq
= rx_ring
->sbq_base
;
2175 for (i
= 0; i
< rx_ring
->sbq_len
; i
++) {
2176 sbq_desc
= &rx_ring
->sbq
[i
];
2177 memset(sbq_desc
, 0, sizeof(sbq_desc
));
2178 sbq_desc
->index
= i
;
2180 skb
= netdev_alloc_skb(qdev
->ndev
, rx_ring
->sbq_buf_size
);
2181 if (unlikely(!skb
)) {
2182 /* Better luck next round */
2183 QPRINTK(qdev
, IFUP
, ERR
,
2184 "small buff alloc failed for %d bytes at index %d.\n",
2185 rx_ring
->sbq_buf_size
, i
);
2188 skb_reserve(skb
, QLGE_SB_PAD
);
2189 sbq_desc
->p
.skb
= skb
;
2191 * Map only half the buffer. Because the
2192 * other half may get some data copied to it
2193 * when the completion arrives.
2195 map
= pci_map_single(qdev
->pdev
,
2197 rx_ring
->sbq_buf_size
/ 2,
2198 PCI_DMA_FROMDEVICE
);
2199 if (pci_dma_mapping_error(qdev
->pdev
, map
)) {
2200 QPRINTK(qdev
, IFUP
, ERR
, "PCI mapping failed.\n");
2203 pci_unmap_addr_set(sbq_desc
, mapaddr
, map
);
2204 pci_unmap_len_set(sbq_desc
, maplen
, rx_ring
->sbq_buf_size
/ 2);
2205 bq
->addr_lo
= /*sbq_desc->addr_lo = */
2207 bq
->addr_hi
= /*sbq_desc->addr_hi = */
2208 cpu_to_le32(map
>> 32);
2213 ql_free_sbq_buffers(qdev
, rx_ring
);
2217 static void ql_free_rx_resources(struct ql_adapter
*qdev
,
2218 struct rx_ring
*rx_ring
)
2220 if (rx_ring
->sbq_len
)
2221 ql_free_sbq_buffers(qdev
, rx_ring
);
2222 if (rx_ring
->lbq_len
)
2223 ql_free_lbq_buffers(qdev
, rx_ring
);
2225 /* Free the small buffer queue. */
2226 if (rx_ring
->sbq_base
) {
2227 pci_free_consistent(qdev
->pdev
,
2229 rx_ring
->sbq_base
, rx_ring
->sbq_base_dma
);
2230 rx_ring
->sbq_base
= NULL
;
2233 /* Free the small buffer queue control blocks. */
2234 kfree(rx_ring
->sbq
);
2235 rx_ring
->sbq
= NULL
;
2237 /* Free the large buffer queue. */
2238 if (rx_ring
->lbq_base
) {
2239 pci_free_consistent(qdev
->pdev
,
2241 rx_ring
->lbq_base
, rx_ring
->lbq_base_dma
);
2242 rx_ring
->lbq_base
= NULL
;
2245 /* Free the large buffer queue control blocks. */
2246 kfree(rx_ring
->lbq
);
2247 rx_ring
->lbq
= NULL
;
2249 /* Free the rx queue. */
2250 if (rx_ring
->cq_base
) {
2251 pci_free_consistent(qdev
->pdev
,
2253 rx_ring
->cq_base
, rx_ring
->cq_base_dma
);
2254 rx_ring
->cq_base
= NULL
;
2258 /* Allocate queues and buffers for this completions queue based
2259 * on the values in the parameter structure. */
2260 static int ql_alloc_rx_resources(struct ql_adapter
*qdev
,
2261 struct rx_ring
*rx_ring
)
2265 * Allocate the completion queue for this rx_ring.
2268 pci_alloc_consistent(qdev
->pdev
, rx_ring
->cq_size
,
2269 &rx_ring
->cq_base_dma
);
2271 if (rx_ring
->cq_base
== NULL
) {
2272 QPRINTK(qdev
, IFUP
, ERR
, "rx_ring alloc failed.\n");
2276 if (rx_ring
->sbq_len
) {
2278 * Allocate small buffer queue.
2281 pci_alloc_consistent(qdev
->pdev
, rx_ring
->sbq_size
,
2282 &rx_ring
->sbq_base_dma
);
2284 if (rx_ring
->sbq_base
== NULL
) {
2285 QPRINTK(qdev
, IFUP
, ERR
,
2286 "Small buffer queue allocation failed.\n");
2291 * Allocate small buffer queue control blocks.
2294 kmalloc(rx_ring
->sbq_len
* sizeof(struct bq_desc
),
2296 if (rx_ring
->sbq
== NULL
) {
2297 QPRINTK(qdev
, IFUP
, ERR
,
2298 "Small buffer queue control block allocation failed.\n");
2302 if (ql_alloc_sbq_buffers(qdev
, rx_ring
)) {
2303 QPRINTK(qdev
, IFUP
, ERR
,
2304 "Small buffer allocation failed.\n");
2309 if (rx_ring
->lbq_len
) {
2311 * Allocate large buffer queue.
2314 pci_alloc_consistent(qdev
->pdev
, rx_ring
->lbq_size
,
2315 &rx_ring
->lbq_base_dma
);
2317 if (rx_ring
->lbq_base
== NULL
) {
2318 QPRINTK(qdev
, IFUP
, ERR
,
2319 "Large buffer queue allocation failed.\n");
2323 * Allocate large buffer queue control blocks.
2326 kmalloc(rx_ring
->lbq_len
* sizeof(struct bq_desc
),
2328 if (rx_ring
->lbq
== NULL
) {
2329 QPRINTK(qdev
, IFUP
, ERR
,
2330 "Large buffer queue control block allocation failed.\n");
2335 * Allocate the buffers.
2337 if (ql_alloc_lbq_buffers(qdev
, rx_ring
)) {
2338 QPRINTK(qdev
, IFUP
, ERR
,
2339 "Large buffer allocation failed.\n");
2347 ql_free_rx_resources(qdev
, rx_ring
);
2351 static void ql_tx_ring_clean(struct ql_adapter
*qdev
)
2353 struct tx_ring
*tx_ring
;
2354 struct tx_ring_desc
*tx_ring_desc
;
2358 * Loop through all queues and free
2361 for (j
= 0; j
< qdev
->tx_ring_count
; j
++) {
2362 tx_ring
= &qdev
->tx_ring
[j
];
2363 for (i
= 0; i
< tx_ring
->wq_len
; i
++) {
2364 tx_ring_desc
= &tx_ring
->q
[i
];
2365 if (tx_ring_desc
&& tx_ring_desc
->skb
) {
2366 QPRINTK(qdev
, IFDOWN
, ERR
,
2367 "Freeing lost SKB %p, from queue %d, index %d.\n",
2368 tx_ring_desc
->skb
, j
,
2369 tx_ring_desc
->index
);
2370 ql_unmap_send(qdev
, tx_ring_desc
,
2371 tx_ring_desc
->map_cnt
);
2372 dev_kfree_skb(tx_ring_desc
->skb
);
2373 tx_ring_desc
->skb
= NULL
;
2379 static void ql_free_ring_cb(struct ql_adapter
*qdev
)
2381 kfree(qdev
->ring_mem
);
2384 static int ql_alloc_ring_cb(struct ql_adapter
*qdev
)
2386 /* Allocate space for tx/rx ring control blocks. */
2387 qdev
->ring_mem_size
=
2388 (qdev
->tx_ring_count
* sizeof(struct tx_ring
)) +
2389 (qdev
->rx_ring_count
* sizeof(struct rx_ring
));
2390 qdev
->ring_mem
= kmalloc(qdev
->ring_mem_size
, GFP_KERNEL
);
2391 if (qdev
->ring_mem
== NULL
) {
2394 qdev
->rx_ring
= qdev
->ring_mem
;
2395 qdev
->tx_ring
= qdev
->ring_mem
+
2396 (qdev
->rx_ring_count
* sizeof(struct rx_ring
));
2401 static void ql_free_mem_resources(struct ql_adapter
*qdev
)
2405 for (i
= 0; i
< qdev
->tx_ring_count
; i
++)
2406 ql_free_tx_resources(qdev
, &qdev
->tx_ring
[i
]);
2407 for (i
= 0; i
< qdev
->rx_ring_count
; i
++)
2408 ql_free_rx_resources(qdev
, &qdev
->rx_ring
[i
]);
2409 ql_free_shadow_space(qdev
);
2412 static int ql_alloc_mem_resources(struct ql_adapter
*qdev
)
2416 /* Allocate space for our shadow registers and such. */
2417 if (ql_alloc_shadow_space(qdev
))
2420 for (i
= 0; i
< qdev
->rx_ring_count
; i
++) {
2421 if (ql_alloc_rx_resources(qdev
, &qdev
->rx_ring
[i
]) != 0) {
2422 QPRINTK(qdev
, IFUP
, ERR
,
2423 "RX resource allocation failed.\n");
2427 /* Allocate tx queue resources */
2428 for (i
= 0; i
< qdev
->tx_ring_count
; i
++) {
2429 if (ql_alloc_tx_resources(qdev
, &qdev
->tx_ring
[i
]) != 0) {
2430 QPRINTK(qdev
, IFUP
, ERR
,
2431 "TX resource allocation failed.\n");
2438 ql_free_mem_resources(qdev
);
2442 /* Set up the rx ring control block and pass it to the chip.
2443 * The control block is defined as
2444 * "Completion Queue Initialization Control Block", or cqicb.
2446 static int ql_start_rx_ring(struct ql_adapter
*qdev
, struct rx_ring
*rx_ring
)
2448 struct cqicb
*cqicb
= &rx_ring
->cqicb
;
2449 void *shadow_reg
= qdev
->rx_ring_shadow_reg_area
+
2450 (rx_ring
->cq_id
* sizeof(u64
) * 4);
2451 u64 shadow_reg_dma
= qdev
->rx_ring_shadow_reg_dma
+
2452 (rx_ring
->cq_id
* sizeof(u64
) * 4);
2453 void __iomem
*doorbell_area
=
2454 qdev
->doorbell_area
+ (DB_PAGE_SIZE
* (128 + rx_ring
->cq_id
));
2458 /* Set up the shadow registers for this ring. */
2459 rx_ring
->prod_idx_sh_reg
= shadow_reg
;
2460 rx_ring
->prod_idx_sh_reg_dma
= shadow_reg_dma
;
2461 shadow_reg
+= sizeof(u64
);
2462 shadow_reg_dma
+= sizeof(u64
);
2463 rx_ring
->lbq_base_indirect
= shadow_reg
;
2464 rx_ring
->lbq_base_indirect_dma
= shadow_reg_dma
;
2465 shadow_reg
+= sizeof(u64
);
2466 shadow_reg_dma
+= sizeof(u64
);
2467 rx_ring
->sbq_base_indirect
= shadow_reg
;
2468 rx_ring
->sbq_base_indirect_dma
= shadow_reg_dma
;
2470 /* PCI doorbell mem area + 0x00 for consumer index register */
2471 rx_ring
->cnsmr_idx_db_reg
= (u32
*) doorbell_area
;
2472 rx_ring
->cnsmr_idx
= 0;
2473 rx_ring
->curr_entry
= rx_ring
->cq_base
;
2475 /* PCI doorbell mem area + 0x04 for valid register */
2476 rx_ring
->valid_db_reg
= doorbell_area
+ 0x04;
2478 /* PCI doorbell mem area + 0x18 for large buffer consumer */
2479 rx_ring
->lbq_prod_idx_db_reg
= (u32
*) (doorbell_area
+ 0x18);
2481 /* PCI doorbell mem area + 0x1c */
2482 rx_ring
->sbq_prod_idx_db_reg
= (u32
*) (doorbell_area
+ 0x1c);
2484 memset((void *)cqicb
, 0, sizeof(struct cqicb
));
2485 cqicb
->msix_vect
= rx_ring
->irq
;
2487 cqicb
->len
= cpu_to_le16(rx_ring
->cq_len
| LEN_V
| LEN_CPP_CONT
);
2489 cqicb
->addr_lo
= cpu_to_le32(rx_ring
->cq_base_dma
);
2490 cqicb
->addr_hi
= cpu_to_le32((u64
) rx_ring
->cq_base_dma
>> 32);
2492 cqicb
->prod_idx_addr_lo
= cpu_to_le32(rx_ring
->prod_idx_sh_reg_dma
);
2493 cqicb
->prod_idx_addr_hi
=
2494 cpu_to_le32((u64
) rx_ring
->prod_idx_sh_reg_dma
>> 32);
2497 * Set up the control block load flags.
2499 cqicb
->flags
= FLAGS_LC
| /* Load queue base address */
2500 FLAGS_LV
| /* Load MSI-X vector */
2501 FLAGS_LI
; /* Load irq delay values */
2502 if (rx_ring
->lbq_len
) {
2503 cqicb
->flags
|= FLAGS_LL
; /* Load lbq values */
2504 *((u64
*) rx_ring
->lbq_base_indirect
) = rx_ring
->lbq_base_dma
;
2505 cqicb
->lbq_addr_lo
=
2506 cpu_to_le32(rx_ring
->lbq_base_indirect_dma
);
2507 cqicb
->lbq_addr_hi
=
2508 cpu_to_le32((u64
) rx_ring
->lbq_base_indirect_dma
>> 32);
2509 cqicb
->lbq_buf_size
= cpu_to_le32(rx_ring
->lbq_buf_size
);
2510 bq_len
= (u16
) rx_ring
->lbq_len
;
2511 cqicb
->lbq_len
= cpu_to_le16(bq_len
);
2512 rx_ring
->lbq_prod_idx
= rx_ring
->lbq_len
- 16;
2513 rx_ring
->lbq_curr_idx
= 0;
2514 rx_ring
->lbq_clean_idx
= rx_ring
->lbq_prod_idx
;
2515 rx_ring
->lbq_free_cnt
= 16;
2517 if (rx_ring
->sbq_len
) {
2518 cqicb
->flags
|= FLAGS_LS
; /* Load sbq values */
2519 *((u64
*) rx_ring
->sbq_base_indirect
) = rx_ring
->sbq_base_dma
;
2520 cqicb
->sbq_addr_lo
=
2521 cpu_to_le32(rx_ring
->sbq_base_indirect_dma
);
2522 cqicb
->sbq_addr_hi
=
2523 cpu_to_le32((u64
) rx_ring
->sbq_base_indirect_dma
>> 32);
2524 cqicb
->sbq_buf_size
=
2525 cpu_to_le16(((rx_ring
->sbq_buf_size
/ 2) + 8) & 0xfffffff8);
2526 bq_len
= (u16
) rx_ring
->sbq_len
;
2527 cqicb
->sbq_len
= cpu_to_le16(bq_len
);
2528 rx_ring
->sbq_prod_idx
= rx_ring
->sbq_len
- 16;
2529 rx_ring
->sbq_curr_idx
= 0;
2530 rx_ring
->sbq_clean_idx
= rx_ring
->sbq_prod_idx
;
2531 rx_ring
->sbq_free_cnt
= 16;
2533 switch (rx_ring
->type
) {
2535 /* If there's only one interrupt, then we use
2536 * worker threads to process the outbound
2537 * completion handling rx_rings. We do this so
2538 * they can be run on multiple CPUs. There is
2539 * room to play with this more where we would only
2540 * run in a worker if there are more than x number
2541 * of outbound completions on the queue and more
2542 * than one queue active. Some threshold that
2543 * would indicate a benefit in spite of the cost
2544 * of a context switch.
2545 * If there's more than one interrupt, then the
2546 * outbound completions are processed in the ISR.
2548 if (!test_bit(QL_MSIX_ENABLED
, &qdev
->flags
))
2549 INIT_DELAYED_WORK(&rx_ring
->rx_work
, ql_tx_clean
);
2551 /* With all debug warnings on we see a WARN_ON message
2552 * when we free the skb in the interrupt context.
2554 INIT_DELAYED_WORK(&rx_ring
->rx_work
, ql_tx_clean
);
2556 cqicb
->irq_delay
= cpu_to_le16(qdev
->tx_coalesce_usecs
);
2557 cqicb
->pkt_delay
= cpu_to_le16(qdev
->tx_max_coalesced_frames
);
2560 INIT_DELAYED_WORK(&rx_ring
->rx_work
, ql_rx_clean
);
2561 cqicb
->irq_delay
= 0;
2562 cqicb
->pkt_delay
= 0;
2565 /* Inbound completion handling rx_rings run in
2566 * separate NAPI contexts.
2568 netif_napi_add(qdev
->ndev
, &rx_ring
->napi
, ql_napi_poll_msix
,
2570 cqicb
->irq_delay
= cpu_to_le16(qdev
->rx_coalesce_usecs
);
2571 cqicb
->pkt_delay
= cpu_to_le16(qdev
->rx_max_coalesced_frames
);
2574 QPRINTK(qdev
, IFUP
, DEBUG
, "Invalid rx_ring->type = %d.\n",
2577 QPRINTK(qdev
, IFUP
, INFO
, "Initializing rx work queue.\n");
2578 err
= ql_write_cfg(qdev
, cqicb
, sizeof(struct cqicb
),
2579 CFG_LCQ
, rx_ring
->cq_id
);
2581 QPRINTK(qdev
, IFUP
, ERR
, "Failed to load CQICB.\n");
2584 QPRINTK(qdev
, IFUP
, INFO
, "Successfully loaded CQICB.\n");
2586 * Advance the producer index for the buffer queues.
2589 if (rx_ring
->lbq_len
)
2590 ql_write_db_reg(rx_ring
->lbq_prod_idx
,
2591 rx_ring
->lbq_prod_idx_db_reg
);
2592 if (rx_ring
->sbq_len
)
2593 ql_write_db_reg(rx_ring
->sbq_prod_idx
,
2594 rx_ring
->sbq_prod_idx_db_reg
);
2598 static int ql_start_tx_ring(struct ql_adapter
*qdev
, struct tx_ring
*tx_ring
)
2600 struct wqicb
*wqicb
= (struct wqicb
*)tx_ring
;
2601 void __iomem
*doorbell_area
=
2602 qdev
->doorbell_area
+ (DB_PAGE_SIZE
* tx_ring
->wq_id
);
2603 void *shadow_reg
= qdev
->tx_ring_shadow_reg_area
+
2604 (tx_ring
->wq_id
* sizeof(u64
));
2605 u64 shadow_reg_dma
= qdev
->tx_ring_shadow_reg_dma
+
2606 (tx_ring
->wq_id
* sizeof(u64
));
2610 * Assign doorbell registers for this tx_ring.
2612 /* TX PCI doorbell mem area for tx producer index */
2613 tx_ring
->prod_idx_db_reg
= (u32
*) doorbell_area
;
2614 tx_ring
->prod_idx
= 0;
2615 /* TX PCI doorbell mem area + 0x04 */
2616 tx_ring
->valid_db_reg
= doorbell_area
+ 0x04;
2619 * Assign shadow registers for this tx_ring.
2621 tx_ring
->cnsmr_idx_sh_reg
= shadow_reg
;
2622 tx_ring
->cnsmr_idx_sh_reg_dma
= shadow_reg_dma
;
2624 wqicb
->len
= cpu_to_le16(tx_ring
->wq_len
| Q_LEN_V
| Q_LEN_CPP_CONT
);
2625 wqicb
->flags
= cpu_to_le16(Q_FLAGS_LC
|
2626 Q_FLAGS_LB
| Q_FLAGS_LI
| Q_FLAGS_LO
);
2627 wqicb
->cq_id_rss
= cpu_to_le16(tx_ring
->cq_id
);
2629 wqicb
->addr_lo
= cpu_to_le32(tx_ring
->wq_base_dma
);
2630 wqicb
->addr_hi
= cpu_to_le32((u64
) tx_ring
->wq_base_dma
>> 32);
2632 wqicb
->cnsmr_idx_addr_lo
= cpu_to_le32(tx_ring
->cnsmr_idx_sh_reg_dma
);
2633 wqicb
->cnsmr_idx_addr_hi
=
2634 cpu_to_le32((u64
) tx_ring
->cnsmr_idx_sh_reg_dma
>> 32);
2636 ql_init_tx_ring(qdev
, tx_ring
);
2638 err
= ql_write_cfg(qdev
, wqicb
, sizeof(wqicb
), CFG_LRQ
,
2639 (u16
) tx_ring
->wq_id
);
2641 QPRINTK(qdev
, IFUP
, ERR
, "Failed to load tx_ring.\n");
2644 QPRINTK(qdev
, IFUP
, INFO
, "Successfully loaded WQICB.\n");
2648 static void ql_disable_msix(struct ql_adapter
*qdev
)
2650 if (test_bit(QL_MSIX_ENABLED
, &qdev
->flags
)) {
2651 pci_disable_msix(qdev
->pdev
);
2652 clear_bit(QL_MSIX_ENABLED
, &qdev
->flags
);
2653 kfree(qdev
->msi_x_entry
);
2654 qdev
->msi_x_entry
= NULL
;
2655 } else if (test_bit(QL_MSI_ENABLED
, &qdev
->flags
)) {
2656 pci_disable_msi(qdev
->pdev
);
2657 clear_bit(QL_MSI_ENABLED
, &qdev
->flags
);
2661 static void ql_enable_msix(struct ql_adapter
*qdev
)
2665 qdev
->intr_count
= 1;
2666 /* Get the MSIX vectors. */
2667 if (irq_type
== MSIX_IRQ
) {
2668 /* Try to alloc space for the msix struct,
2669 * if it fails then go to MSI/legacy.
2671 qdev
->msi_x_entry
= kcalloc(qdev
->rx_ring_count
,
2672 sizeof(struct msix_entry
),
2674 if (!qdev
->msi_x_entry
) {
2679 for (i
= 0; i
< qdev
->rx_ring_count
; i
++)
2680 qdev
->msi_x_entry
[i
].entry
= i
;
2682 if (!pci_enable_msix
2683 (qdev
->pdev
, qdev
->msi_x_entry
, qdev
->rx_ring_count
)) {
2684 set_bit(QL_MSIX_ENABLED
, &qdev
->flags
);
2685 qdev
->intr_count
= qdev
->rx_ring_count
;
2686 QPRINTK(qdev
, IFUP
, INFO
,
2687 "MSI-X Enabled, got %d vectors.\n",
2691 kfree(qdev
->msi_x_entry
);
2692 qdev
->msi_x_entry
= NULL
;
2693 QPRINTK(qdev
, IFUP
, WARNING
,
2694 "MSI-X Enable failed, trying MSI.\n");
2699 if (irq_type
== MSI_IRQ
) {
2700 if (!pci_enable_msi(qdev
->pdev
)) {
2701 set_bit(QL_MSI_ENABLED
, &qdev
->flags
);
2702 QPRINTK(qdev
, IFUP
, INFO
,
2703 "Running with MSI interrupts.\n");
2708 QPRINTK(qdev
, IFUP
, DEBUG
, "Running with legacy interrupts.\n");
2712 * Here we build the intr_context structures based on
2713 * our rx_ring count and intr vector count.
2714 * The intr_context structure is used to hook each vector
2715 * to possibly different handlers.
2717 static void ql_resolve_queues_to_irqs(struct ql_adapter
*qdev
)
2720 struct intr_context
*intr_context
= &qdev
->intr_context
[0];
2722 ql_enable_msix(qdev
);
2724 if (likely(test_bit(QL_MSIX_ENABLED
, &qdev
->flags
))) {
2725 /* Each rx_ring has it's
2726 * own intr_context since we have separate
2727 * vectors for each queue.
2728 * This only true when MSI-X is enabled.
2730 for (i
= 0; i
< qdev
->intr_count
; i
++, intr_context
++) {
2731 qdev
->rx_ring
[i
].irq
= i
;
2732 intr_context
->intr
= i
;
2733 intr_context
->qdev
= qdev
;
2735 * We set up each vectors enable/disable/read bits so
2736 * there's no bit/mask calculations in the critical path.
2738 intr_context
->intr_en_mask
=
2739 INTR_EN_TYPE_MASK
| INTR_EN_INTR_MASK
|
2740 INTR_EN_TYPE_ENABLE
| INTR_EN_IHD_MASK
| INTR_EN_IHD
2742 intr_context
->intr_dis_mask
=
2743 INTR_EN_TYPE_MASK
| INTR_EN_INTR_MASK
|
2744 INTR_EN_TYPE_DISABLE
| INTR_EN_IHD_MASK
|
2746 intr_context
->intr_read_mask
=
2747 INTR_EN_TYPE_MASK
| INTR_EN_INTR_MASK
|
2748 INTR_EN_TYPE_READ
| INTR_EN_IHD_MASK
| INTR_EN_IHD
|
2753 * Default queue handles bcast/mcast plus
2754 * async events. Needs buffers.
2756 intr_context
->handler
= qlge_isr
;
2757 sprintf(intr_context
->name
, "%s-default-queue",
2759 } else if (i
< qdev
->rss_ring_first_cq_id
) {
2761 * Outbound queue is for outbound completions only.
2763 intr_context
->handler
= qlge_msix_tx_isr
;
2764 sprintf(intr_context
->name
, "%s-txq-%d",
2765 qdev
->ndev
->name
, i
);
2768 * Inbound queues handle unicast frames only.
2770 intr_context
->handler
= qlge_msix_rx_isr
;
2771 sprintf(intr_context
->name
, "%s-rxq-%d",
2772 qdev
->ndev
->name
, i
);
2777 * All rx_rings use the same intr_context since
2778 * there is only one vector.
2780 intr_context
->intr
= 0;
2781 intr_context
->qdev
= qdev
;
2783 * We set up each vectors enable/disable/read bits so
2784 * there's no bit/mask calculations in the critical path.
2786 intr_context
->intr_en_mask
=
2787 INTR_EN_TYPE_MASK
| INTR_EN_INTR_MASK
| INTR_EN_TYPE_ENABLE
;
2788 intr_context
->intr_dis_mask
=
2789 INTR_EN_TYPE_MASK
| INTR_EN_INTR_MASK
|
2790 INTR_EN_TYPE_DISABLE
;
2791 intr_context
->intr_read_mask
=
2792 INTR_EN_TYPE_MASK
| INTR_EN_INTR_MASK
| INTR_EN_TYPE_READ
;
2794 * Single interrupt means one handler for all rings.
2796 intr_context
->handler
= qlge_isr
;
2797 sprintf(intr_context
->name
, "%s-single_irq", qdev
->ndev
->name
);
2798 for (i
= 0; i
< qdev
->rx_ring_count
; i
++)
2799 qdev
->rx_ring
[i
].irq
= 0;
2803 static void ql_free_irq(struct ql_adapter
*qdev
)
2806 struct intr_context
*intr_context
= &qdev
->intr_context
[0];
2808 for (i
= 0; i
< qdev
->intr_count
; i
++, intr_context
++) {
2809 if (intr_context
->hooked
) {
2810 if (test_bit(QL_MSIX_ENABLED
, &qdev
->flags
)) {
2811 free_irq(qdev
->msi_x_entry
[i
].vector
,
2813 QPRINTK(qdev
, IFDOWN
, ERR
,
2814 "freeing msix interrupt %d.\n", i
);
2816 free_irq(qdev
->pdev
->irq
, &qdev
->rx_ring
[0]);
2817 QPRINTK(qdev
, IFDOWN
, ERR
,
2818 "freeing msi interrupt %d.\n", i
);
2822 ql_disable_msix(qdev
);
2825 static int ql_request_irq(struct ql_adapter
*qdev
)
2829 struct pci_dev
*pdev
= qdev
->pdev
;
2830 struct intr_context
*intr_context
= &qdev
->intr_context
[0];
2832 ql_resolve_queues_to_irqs(qdev
);
2834 for (i
= 0; i
< qdev
->intr_count
; i
++, intr_context
++) {
2835 atomic_set(&intr_context
->irq_cnt
, 0);
2836 if (test_bit(QL_MSIX_ENABLED
, &qdev
->flags
)) {
2837 status
= request_irq(qdev
->msi_x_entry
[i
].vector
,
2838 intr_context
->handler
,
2843 QPRINTK(qdev
, IFUP
, ERR
,
2844 "Failed request for MSIX interrupt %d.\n",
2848 QPRINTK(qdev
, IFUP
, INFO
,
2849 "Hooked intr %d, queue type %s%s%s, with name %s.\n",
2851 qdev
->rx_ring
[i
].type
==
2852 DEFAULT_Q
? "DEFAULT_Q" : "",
2853 qdev
->rx_ring
[i
].type
==
2855 qdev
->rx_ring
[i
].type
==
2856 RX_Q
? "RX_Q" : "", intr_context
->name
);
2859 QPRINTK(qdev
, IFUP
, DEBUG
,
2860 "trying msi or legacy interrupts.\n");
2861 QPRINTK(qdev
, IFUP
, DEBUG
,
2862 "%s: irq = %d.\n", __func__
, pdev
->irq
);
2863 QPRINTK(qdev
, IFUP
, DEBUG
,
2864 "%s: context->name = %s.\n", __func__
,
2865 intr_context
->name
);
2866 QPRINTK(qdev
, IFUP
, DEBUG
,
2867 "%s: dev_id = 0x%p.\n", __func__
,
2870 request_irq(pdev
->irq
, qlge_isr
,
2871 test_bit(QL_MSI_ENABLED
,
2873 flags
) ? 0 : IRQF_SHARED
,
2874 intr_context
->name
, &qdev
->rx_ring
[0]);
2878 QPRINTK(qdev
, IFUP
, ERR
,
2879 "Hooked intr %d, queue type %s%s%s, with name %s.\n",
2881 qdev
->rx_ring
[0].type
==
2882 DEFAULT_Q
? "DEFAULT_Q" : "",
2883 qdev
->rx_ring
[0].type
== TX_Q
? "TX_Q" : "",
2884 qdev
->rx_ring
[0].type
== RX_Q
? "RX_Q" : "",
2885 intr_context
->name
);
2887 intr_context
->hooked
= 1;
2891 QPRINTK(qdev
, IFUP
, ERR
, "Failed to get the interrupts!!!/n");
2896 static int ql_start_rss(struct ql_adapter
*qdev
)
2898 struct ricb
*ricb
= &qdev
->ricb
;
2901 u8
*hash_id
= (u8
*) ricb
->hash_cq_id
;
2903 memset((void *)ricb
, 0, sizeof(ricb
));
2905 ricb
->base_cq
= qdev
->rss_ring_first_cq_id
| RSS_L4K
;
2907 (RSS_L6K
| RSS_LI
| RSS_LB
| RSS_LM
| RSS_RI4
| RSS_RI6
| RSS_RT4
|
2909 ricb
->mask
= cpu_to_le16(qdev
->rss_ring_count
- 1);
2912 * Fill out the Indirection Table.
2914 for (i
= 0; i
< 32; i
++)
2918 * Random values for the IPv6 and IPv4 Hash Keys.
2920 get_random_bytes((void *)&ricb
->ipv6_hash_key
[0], 40);
2921 get_random_bytes((void *)&ricb
->ipv4_hash_key
[0], 16);
2923 QPRINTK(qdev
, IFUP
, INFO
, "Initializing RSS.\n");
2925 status
= ql_write_cfg(qdev
, ricb
, sizeof(ricb
), CFG_LR
, 0);
2927 QPRINTK(qdev
, IFUP
, ERR
, "Failed to load RICB.\n");
2930 QPRINTK(qdev
, IFUP
, INFO
, "Successfully loaded RICB.\n");
2934 /* Initialize the frame-to-queue routing. */
2935 static int ql_route_initialize(struct ql_adapter
*qdev
)
2940 /* Clear all the entries in the routing table. */
2941 for (i
= 0; i
< 16; i
++) {
2942 status
= ql_set_routing_reg(qdev
, i
, 0, 0);
2944 QPRINTK(qdev
, IFUP
, ERR
,
2945 "Failed to init routing register for CAM packets.\n");
2950 status
= ql_set_routing_reg(qdev
, RT_IDX_ALL_ERR_SLOT
, RT_IDX_ERR
, 1);
2952 QPRINTK(qdev
, IFUP
, ERR
,
2953 "Failed to init routing register for error packets.\n");
2956 status
= ql_set_routing_reg(qdev
, RT_IDX_BCAST_SLOT
, RT_IDX_BCAST
, 1);
2958 QPRINTK(qdev
, IFUP
, ERR
,
2959 "Failed to init routing register for broadcast packets.\n");
2962 /* If we have more than one inbound queue, then turn on RSS in the
2965 if (qdev
->rss_ring_count
> 1) {
2966 status
= ql_set_routing_reg(qdev
, RT_IDX_RSS_MATCH_SLOT
,
2967 RT_IDX_RSS_MATCH
, 1);
2969 QPRINTK(qdev
, IFUP
, ERR
,
2970 "Failed to init routing register for MATCH RSS packets.\n");
2975 status
= ql_set_routing_reg(qdev
, RT_IDX_CAM_HIT_SLOT
,
2978 QPRINTK(qdev
, IFUP
, ERR
,
2979 "Failed to init routing register for CAM packets.\n");
2985 static int ql_adapter_initialize(struct ql_adapter
*qdev
)
2992 * Set up the System register to halt on errors.
2994 value
= SYS_EFE
| SYS_FAE
;
2996 ql_write32(qdev
, SYS
, mask
| value
);
2998 /* Set the default queue. */
2999 value
= NIC_RCV_CFG_DFQ
;
3000 mask
= NIC_RCV_CFG_DFQ_MASK
;
3001 ql_write32(qdev
, NIC_RCV_CFG
, (mask
| value
));
3003 /* Set the MPI interrupt to enabled. */
3004 ql_write32(qdev
, INTR_MASK
, (INTR_MASK_PI
<< 16) | INTR_MASK_PI
);
3006 /* Enable the function, set pagesize, enable error checking. */
3007 value
= FSC_FE
| FSC_EPC_INBOUND
| FSC_EPC_OUTBOUND
|
3008 FSC_EC
| FSC_VM_PAGE_4K
| FSC_SH
;
3010 /* Set/clear header splitting. */
3011 mask
= FSC_VM_PAGESIZE_MASK
|
3012 FSC_DBL_MASK
| FSC_DBRST_MASK
| (value
<< 16);
3013 ql_write32(qdev
, FSC
, mask
| value
);
3015 ql_write32(qdev
, SPLT_HDR
, SPLT_HDR_EP
|
3016 min(SMALL_BUFFER_SIZE
, MAX_SPLIT_SIZE
));
3018 /* Start up the rx queues. */
3019 for (i
= 0; i
< qdev
->rx_ring_count
; i
++) {
3020 status
= ql_start_rx_ring(qdev
, &qdev
->rx_ring
[i
]);
3022 QPRINTK(qdev
, IFUP
, ERR
,
3023 "Failed to start rx ring[%d].\n", i
);
3028 /* If there is more than one inbound completion queue
3029 * then download a RICB to configure RSS.
3031 if (qdev
->rss_ring_count
> 1) {
3032 status
= ql_start_rss(qdev
);
3034 QPRINTK(qdev
, IFUP
, ERR
, "Failed to start RSS.\n");
3039 /* Start up the tx queues. */
3040 for (i
= 0; i
< qdev
->tx_ring_count
; i
++) {
3041 status
= ql_start_tx_ring(qdev
, &qdev
->tx_ring
[i
]);
3043 QPRINTK(qdev
, IFUP
, ERR
,
3044 "Failed to start tx ring[%d].\n", i
);
3049 status
= ql_port_initialize(qdev
);
3051 QPRINTK(qdev
, IFUP
, ERR
, "Failed to start port.\n");
3055 status
= ql_set_mac_addr_reg(qdev
, (u8
*) qdev
->ndev
->perm_addr
,
3056 MAC_ADDR_TYPE_CAM_MAC
, qdev
->func
);
3058 QPRINTK(qdev
, IFUP
, ERR
, "Failed to init mac address.\n");
3062 status
= ql_route_initialize(qdev
);
3064 QPRINTK(qdev
, IFUP
, ERR
, "Failed to init routing table.\n");
3068 /* Start NAPI for the RSS queues. */
3069 for (i
= qdev
->rss_ring_first_cq_id
; i
< qdev
->rx_ring_count
; i
++) {
3070 QPRINTK(qdev
, IFUP
, INFO
, "Enabling NAPI for rx_ring[%d].\n",
3072 napi_enable(&qdev
->rx_ring
[i
].napi
);
3078 /* Issue soft reset to chip. */
3079 static int ql_adapter_reset(struct ql_adapter
*qdev
)
3086 #define MAX_RESET_CNT 1
3089 QPRINTK(qdev
, IFDOWN
, DEBUG
, "Issue soft reset to chip.\n");
3090 ql_write32(qdev
, RST_FO
, (RST_FO_FR
<< 16) | RST_FO_FR
);
3091 /* Wait for reset to complete. */
3093 QPRINTK(qdev
, IFDOWN
, DEBUG
, "Wait %d seconds for reset to complete.\n",
3096 value
= ql_read32(qdev
, RST_FO
);
3097 if ((value
& RST_FO_FR
) == 0)
3101 } while ((--max_wait_time
));
3102 if (value
& RST_FO_FR
) {
3103 QPRINTK(qdev
, IFDOWN
, ERR
,
3104 "Stuck in SoftReset: FSC_SR:0x%08x\n", value
);
3105 if (resetCnt
< MAX_RESET_CNT
)
3108 if (max_wait_time
== 0) {
3109 status
= -ETIMEDOUT
;
3110 QPRINTK(qdev
, IFDOWN
, ERR
,
3111 "ETIMEOUT!!! errored out of resetting the chip!\n");
3117 static void ql_display_dev_info(struct net_device
*ndev
)
3119 struct ql_adapter
*qdev
= (struct ql_adapter
*)netdev_priv(ndev
);
3121 QPRINTK(qdev
, PROBE
, INFO
,
3122 "Function #%d, NIC Roll %d, NIC Rev = %d, "
3123 "XG Roll = %d, XG Rev = %d.\n",
3125 qdev
->chip_rev_id
& 0x0000000f,
3126 qdev
->chip_rev_id
>> 4 & 0x0000000f,
3127 qdev
->chip_rev_id
>> 8 & 0x0000000f,
3128 qdev
->chip_rev_id
>> 12 & 0x0000000f);
3129 QPRINTK(qdev
, PROBE
, INFO
, "MAC address %pM\n", ndev
->dev_addr
);
3132 static int ql_adapter_down(struct ql_adapter
*qdev
)
3134 struct net_device
*ndev
= qdev
->ndev
;
3136 struct rx_ring
*rx_ring
;
3138 netif_stop_queue(ndev
);
3139 netif_carrier_off(ndev
);
3141 cancel_delayed_work_sync(&qdev
->asic_reset_work
);
3142 cancel_delayed_work_sync(&qdev
->mpi_reset_work
);
3143 cancel_delayed_work_sync(&qdev
->mpi_work
);
3145 /* The default queue at index 0 is always processed in
3148 cancel_delayed_work_sync(&qdev
->rx_ring
[0].rx_work
);
3150 /* The rest of the rx_rings are processed in
3151 * a workqueue only if it's a single interrupt
3152 * environment (MSI/Legacy).
3154 for (i
= 1; i
> qdev
->rx_ring_count
; i
++) {
3155 rx_ring
= &qdev
->rx_ring
[i
];
3156 /* Only the RSS rings use NAPI on multi irq
3157 * environment. Outbound completion processing
3158 * is done in interrupt context.
3160 if (i
>= qdev
->rss_ring_first_cq_id
) {
3161 napi_disable(&rx_ring
->napi
);
3163 cancel_delayed_work_sync(&rx_ring
->rx_work
);
3167 clear_bit(QL_ADAPTER_UP
, &qdev
->flags
);
3169 ql_disable_interrupts(qdev
);
3171 ql_tx_ring_clean(qdev
);
3173 spin_lock(&qdev
->hw_lock
);
3174 status
= ql_adapter_reset(qdev
);
3176 QPRINTK(qdev
, IFDOWN
, ERR
, "reset(func #%d) FAILED!\n",
3178 spin_unlock(&qdev
->hw_lock
);
3182 static int ql_adapter_up(struct ql_adapter
*qdev
)
3186 spin_lock(&qdev
->hw_lock
);
3187 err
= ql_adapter_initialize(qdev
);
3189 QPRINTK(qdev
, IFUP
, INFO
, "Unable to initialize adapter.\n");
3190 spin_unlock(&qdev
->hw_lock
);
3193 spin_unlock(&qdev
->hw_lock
);
3194 set_bit(QL_ADAPTER_UP
, &qdev
->flags
);
3195 ql_enable_interrupts(qdev
);
3196 ql_enable_all_completion_interrupts(qdev
);
3197 if ((ql_read32(qdev
, STS
) & qdev
->port_init
)) {
3198 netif_carrier_on(qdev
->ndev
);
3199 netif_start_queue(qdev
->ndev
);
3204 ql_adapter_reset(qdev
);
3208 static int ql_cycle_adapter(struct ql_adapter
*qdev
)
3212 status
= ql_adapter_down(qdev
);
3216 status
= ql_adapter_up(qdev
);
3222 QPRINTK(qdev
, IFUP
, ALERT
,
3223 "Driver up/down cycle failed, closing device\n");
3225 dev_close(qdev
->ndev
);
3230 static void ql_release_adapter_resources(struct ql_adapter
*qdev
)
3232 ql_free_mem_resources(qdev
);
3236 static int ql_get_adapter_resources(struct ql_adapter
*qdev
)
3240 if (ql_alloc_mem_resources(qdev
)) {
3241 QPRINTK(qdev
, IFUP
, ERR
, "Unable to allocate memory.\n");
3244 status
= ql_request_irq(qdev
);
3249 ql_free_mem_resources(qdev
);
3253 static int qlge_close(struct net_device
*ndev
)
3255 struct ql_adapter
*qdev
= netdev_priv(ndev
);
3258 * Wait for device to recover from a reset.
3259 * (Rarely happens, but possible.)
3261 while (!test_bit(QL_ADAPTER_UP
, &qdev
->flags
))
3263 ql_adapter_down(qdev
);
3264 ql_release_adapter_resources(qdev
);
3265 ql_free_ring_cb(qdev
);
3269 static int ql_configure_rings(struct ql_adapter
*qdev
)
3272 struct rx_ring
*rx_ring
;
3273 struct tx_ring
*tx_ring
;
3274 int cpu_cnt
= num_online_cpus();
3277 * For each processor present we allocate one
3278 * rx_ring for outbound completions, and one
3279 * rx_ring for inbound completions. Plus there is
3280 * always the one default queue. For the CPU
3281 * counts we end up with the following rx_rings:
3283 * one default queue +
3284 * (CPU count * outbound completion rx_ring) +
3285 * (CPU count * inbound (RSS) completion rx_ring)
3286 * To keep it simple we limit the total number of
3287 * queues to < 32, so we truncate CPU to 8.
3288 * This limitation can be removed when requested.
3295 * rx_ring[0] is always the default queue.
3297 /* Allocate outbound completion ring for each CPU. */
3298 qdev
->tx_ring_count
= cpu_cnt
;
3299 /* Allocate inbound completion (RSS) ring for each CPU. */
3300 qdev
->rss_ring_count
= cpu_cnt
;
3301 /* cq_id for the first inbound ring handler. */
3302 qdev
->rss_ring_first_cq_id
= cpu_cnt
+ 1;
3304 * qdev->rx_ring_count:
3305 * Total number of rx_rings. This includes the one
3306 * default queue, a number of outbound completion
3307 * handler rx_rings, and the number of inbound
3308 * completion handler rx_rings.
3310 qdev
->rx_ring_count
= qdev
->tx_ring_count
+ qdev
->rss_ring_count
+ 1;
3312 if (ql_alloc_ring_cb(qdev
))
3315 for (i
= 0; i
< qdev
->tx_ring_count
; i
++) {
3316 tx_ring
= &qdev
->tx_ring
[i
];
3317 memset((void *)tx_ring
, 0, sizeof(tx_ring
));
3318 tx_ring
->qdev
= qdev
;
3320 tx_ring
->wq_len
= qdev
->tx_ring_size
;
3322 tx_ring
->wq_len
* sizeof(struct ob_mac_iocb_req
);
3325 * The completion queue ID for the tx rings start
3326 * immediately after the default Q ID, which is zero.
3328 tx_ring
->cq_id
= i
+ 1;
3331 for (i
= 0; i
< qdev
->rx_ring_count
; i
++) {
3332 rx_ring
= &qdev
->rx_ring
[i
];
3333 memset((void *)rx_ring
, 0, sizeof(rx_ring
));
3334 rx_ring
->qdev
= qdev
;
3336 rx_ring
->cpu
= i
% cpu_cnt
; /* CPU to run handler on. */
3337 if (i
== 0) { /* Default queue at index 0. */
3339 * Default queue handles bcast/mcast plus
3340 * async events. Needs buffers.
3342 rx_ring
->cq_len
= qdev
->rx_ring_size
;
3344 rx_ring
->cq_len
* sizeof(struct ql_net_rsp_iocb
);
3345 rx_ring
->lbq_len
= NUM_LARGE_BUFFERS
;
3347 rx_ring
->lbq_len
* sizeof(struct bq_element
);
3348 rx_ring
->lbq_buf_size
= LARGE_BUFFER_SIZE
;
3349 rx_ring
->sbq_len
= NUM_SMALL_BUFFERS
;
3351 rx_ring
->sbq_len
* sizeof(struct bq_element
);
3352 rx_ring
->sbq_buf_size
= SMALL_BUFFER_SIZE
* 2;
3353 rx_ring
->type
= DEFAULT_Q
;
3354 } else if (i
< qdev
->rss_ring_first_cq_id
) {
3356 * Outbound queue handles outbound completions only.
3358 /* outbound cq is same size as tx_ring it services. */
3359 rx_ring
->cq_len
= qdev
->tx_ring_size
;
3361 rx_ring
->cq_len
* sizeof(struct ql_net_rsp_iocb
);
3362 rx_ring
->lbq_len
= 0;
3363 rx_ring
->lbq_size
= 0;
3364 rx_ring
->lbq_buf_size
= 0;
3365 rx_ring
->sbq_len
= 0;
3366 rx_ring
->sbq_size
= 0;
3367 rx_ring
->sbq_buf_size
= 0;
3368 rx_ring
->type
= TX_Q
;
3369 } else { /* Inbound completions (RSS) queues */
3371 * Inbound queues handle unicast frames only.
3373 rx_ring
->cq_len
= qdev
->rx_ring_size
;
3375 rx_ring
->cq_len
* sizeof(struct ql_net_rsp_iocb
);
3376 rx_ring
->lbq_len
= NUM_LARGE_BUFFERS
;
3378 rx_ring
->lbq_len
* sizeof(struct bq_element
);
3379 rx_ring
->lbq_buf_size
= LARGE_BUFFER_SIZE
;
3380 rx_ring
->sbq_len
= NUM_SMALL_BUFFERS
;
3382 rx_ring
->sbq_len
* sizeof(struct bq_element
);
3383 rx_ring
->sbq_buf_size
= SMALL_BUFFER_SIZE
* 2;
3384 rx_ring
->type
= RX_Q
;
3390 static int qlge_open(struct net_device
*ndev
)
3393 struct ql_adapter
*qdev
= netdev_priv(ndev
);
3395 err
= ql_configure_rings(qdev
);
3399 err
= ql_get_adapter_resources(qdev
);
3403 err
= ql_adapter_up(qdev
);
3410 ql_release_adapter_resources(qdev
);
3411 ql_free_ring_cb(qdev
);
3415 static int qlge_change_mtu(struct net_device
*ndev
, int new_mtu
)
3417 struct ql_adapter
*qdev
= netdev_priv(ndev
);
3419 if (ndev
->mtu
== 1500 && new_mtu
== 9000) {
3420 QPRINTK(qdev
, IFUP
, ERR
, "Changing to jumbo MTU.\n");
3421 } else if (ndev
->mtu
== 9000 && new_mtu
== 1500) {
3422 QPRINTK(qdev
, IFUP
, ERR
, "Changing to normal MTU.\n");
3423 } else if ((ndev
->mtu
== 1500 && new_mtu
== 1500) ||
3424 (ndev
->mtu
== 9000 && new_mtu
== 9000)) {
3428 ndev
->mtu
= new_mtu
;
3432 static struct net_device_stats
*qlge_get_stats(struct net_device
3435 struct ql_adapter
*qdev
= netdev_priv(ndev
);
3436 return &qdev
->stats
;
3439 static void qlge_set_multicast_list(struct net_device
*ndev
)
3441 struct ql_adapter
*qdev
= (struct ql_adapter
*)netdev_priv(ndev
);
3442 struct dev_mc_list
*mc_ptr
;
3445 spin_lock(&qdev
->hw_lock
);
3447 * Set or clear promiscuous mode if a
3448 * transition is taking place.
3450 if (ndev
->flags
& IFF_PROMISC
) {
3451 if (!test_bit(QL_PROMISCUOUS
, &qdev
->flags
)) {
3452 if (ql_set_routing_reg
3453 (qdev
, RT_IDX_PROMISCUOUS_SLOT
, RT_IDX_VALID
, 1)) {
3454 QPRINTK(qdev
, HW
, ERR
,
3455 "Failed to set promiscous mode.\n");
3457 set_bit(QL_PROMISCUOUS
, &qdev
->flags
);
3461 if (test_bit(QL_PROMISCUOUS
, &qdev
->flags
)) {
3462 if (ql_set_routing_reg
3463 (qdev
, RT_IDX_PROMISCUOUS_SLOT
, RT_IDX_VALID
, 0)) {
3464 QPRINTK(qdev
, HW
, ERR
,
3465 "Failed to clear promiscous mode.\n");
3467 clear_bit(QL_PROMISCUOUS
, &qdev
->flags
);
3473 * Set or clear all multicast mode if a
3474 * transition is taking place.
3476 if ((ndev
->flags
& IFF_ALLMULTI
) ||
3477 (ndev
->mc_count
> MAX_MULTICAST_ENTRIES
)) {
3478 if (!test_bit(QL_ALLMULTI
, &qdev
->flags
)) {
3479 if (ql_set_routing_reg
3480 (qdev
, RT_IDX_ALLMULTI_SLOT
, RT_IDX_MCAST
, 1)) {
3481 QPRINTK(qdev
, HW
, ERR
,
3482 "Failed to set all-multi mode.\n");
3484 set_bit(QL_ALLMULTI
, &qdev
->flags
);
3488 if (test_bit(QL_ALLMULTI
, &qdev
->flags
)) {
3489 if (ql_set_routing_reg
3490 (qdev
, RT_IDX_ALLMULTI_SLOT
, RT_IDX_MCAST
, 0)) {
3491 QPRINTK(qdev
, HW
, ERR
,
3492 "Failed to clear all-multi mode.\n");
3494 clear_bit(QL_ALLMULTI
, &qdev
->flags
);
3499 if (ndev
->mc_count
) {
3500 for (i
= 0, mc_ptr
= ndev
->mc_list
; mc_ptr
;
3501 i
++, mc_ptr
= mc_ptr
->next
)
3502 if (ql_set_mac_addr_reg(qdev
, (u8
*) mc_ptr
->dmi_addr
,
3503 MAC_ADDR_TYPE_MULTI_MAC
, i
)) {
3504 QPRINTK(qdev
, HW
, ERR
,
3505 "Failed to loadmulticast address.\n");
3508 if (ql_set_routing_reg
3509 (qdev
, RT_IDX_MCAST_MATCH_SLOT
, RT_IDX_MCAST_MATCH
, 1)) {
3510 QPRINTK(qdev
, HW
, ERR
,
3511 "Failed to set multicast match mode.\n");
3513 set_bit(QL_ALLMULTI
, &qdev
->flags
);
3517 spin_unlock(&qdev
->hw_lock
);
3520 static int qlge_set_mac_address(struct net_device
*ndev
, void *p
)
3522 struct ql_adapter
*qdev
= (struct ql_adapter
*)netdev_priv(ndev
);
3523 struct sockaddr
*addr
= p
;
3525 if (netif_running(ndev
))
3528 if (!is_valid_ether_addr(addr
->sa_data
))
3529 return -EADDRNOTAVAIL
;
3530 memcpy(ndev
->dev_addr
, addr
->sa_data
, ndev
->addr_len
);
3532 spin_lock(&qdev
->hw_lock
);
3533 if (ql_set_mac_addr_reg(qdev
, (u8
*) ndev
->dev_addr
,
3534 MAC_ADDR_TYPE_CAM_MAC
, qdev
->func
)) {/* Unicast */
3535 QPRINTK(qdev
, HW
, ERR
, "Failed to load MAC address.\n");
3538 spin_unlock(&qdev
->hw_lock
);
3543 static void qlge_tx_timeout(struct net_device
*ndev
)
3545 struct ql_adapter
*qdev
= (struct ql_adapter
*)netdev_priv(ndev
);
3546 queue_delayed_work(qdev
->workqueue
, &qdev
->asic_reset_work
, 0);
3549 static void ql_asic_reset_work(struct work_struct
*work
)
3551 struct ql_adapter
*qdev
=
3552 container_of(work
, struct ql_adapter
, asic_reset_work
.work
);
3553 ql_cycle_adapter(qdev
);
3556 static void ql_get_board_info(struct ql_adapter
*qdev
)
3559 (ql_read32(qdev
, STS
) & STS_FUNC_ID_MASK
) >> STS_FUNC_ID_SHIFT
;
3561 qdev
->xg_sem_mask
= SEM_XGMAC1_MASK
;
3562 qdev
->port_link_up
= STS_PL1
;
3563 qdev
->port_init
= STS_PI1
;
3564 qdev
->mailbox_in
= PROC_ADDR_MPI_RISC
| PROC_ADDR_FUNC2_MBI
;
3565 qdev
->mailbox_out
= PROC_ADDR_MPI_RISC
| PROC_ADDR_FUNC2_MBO
;
3567 qdev
->xg_sem_mask
= SEM_XGMAC0_MASK
;
3568 qdev
->port_link_up
= STS_PL0
;
3569 qdev
->port_init
= STS_PI0
;
3570 qdev
->mailbox_in
= PROC_ADDR_MPI_RISC
| PROC_ADDR_FUNC0_MBI
;
3571 qdev
->mailbox_out
= PROC_ADDR_MPI_RISC
| PROC_ADDR_FUNC0_MBO
;
3573 qdev
->chip_rev_id
= ql_read32(qdev
, REV_ID
);
3576 static void ql_release_all(struct pci_dev
*pdev
)
3578 struct net_device
*ndev
= pci_get_drvdata(pdev
);
3579 struct ql_adapter
*qdev
= netdev_priv(ndev
);
3581 if (qdev
->workqueue
) {
3582 destroy_workqueue(qdev
->workqueue
);
3583 qdev
->workqueue
= NULL
;
3585 if (qdev
->q_workqueue
) {
3586 destroy_workqueue(qdev
->q_workqueue
);
3587 qdev
->q_workqueue
= NULL
;
3590 iounmap((void *)qdev
->reg_base
);
3591 if (qdev
->doorbell_area
)
3592 iounmap(qdev
->doorbell_area
);
3593 pci_release_regions(pdev
);
3594 pci_set_drvdata(pdev
, NULL
);
3597 static int __devinit
ql_init_device(struct pci_dev
*pdev
,
3598 struct net_device
*ndev
, int cards_found
)
3600 struct ql_adapter
*qdev
= netdev_priv(ndev
);
3604 memset((void *)qdev
, 0, sizeof(qdev
));
3605 err
= pci_enable_device(pdev
);
3607 dev_err(&pdev
->dev
, "PCI device enable failed.\n");
3611 pos
= pci_find_capability(pdev
, PCI_CAP_ID_EXP
);
3613 dev_err(&pdev
->dev
, PFX
"Cannot find PCI Express capability, "
3617 pci_read_config_word(pdev
, pos
+ PCI_EXP_DEVCTL
, &val16
);
3618 val16
&= ~PCI_EXP_DEVCTL_NOSNOOP_EN
;
3619 val16
|= (PCI_EXP_DEVCTL_CERE
|
3620 PCI_EXP_DEVCTL_NFERE
|
3621 PCI_EXP_DEVCTL_FERE
| PCI_EXP_DEVCTL_URRE
);
3622 pci_write_config_word(pdev
, pos
+ PCI_EXP_DEVCTL
, val16
);
3625 err
= pci_request_regions(pdev
, DRV_NAME
);
3627 dev_err(&pdev
->dev
, "PCI region request failed.\n");
3631 pci_set_master(pdev
);
3632 if (!pci_set_dma_mask(pdev
, DMA_64BIT_MASK
)) {
3633 set_bit(QL_DMA64
, &qdev
->flags
);
3634 err
= pci_set_consistent_dma_mask(pdev
, DMA_64BIT_MASK
);
3636 err
= pci_set_dma_mask(pdev
, DMA_32BIT_MASK
);
3638 err
= pci_set_consistent_dma_mask(pdev
, DMA_32BIT_MASK
);
3642 dev_err(&pdev
->dev
, "No usable DMA configuration.\n");
3646 pci_set_drvdata(pdev
, ndev
);
3648 ioremap_nocache(pci_resource_start(pdev
, 1),
3649 pci_resource_len(pdev
, 1));
3650 if (!qdev
->reg_base
) {
3651 dev_err(&pdev
->dev
, "Register mapping failed.\n");
3656 qdev
->doorbell_area_size
= pci_resource_len(pdev
, 3);
3657 qdev
->doorbell_area
=
3658 ioremap_nocache(pci_resource_start(pdev
, 3),
3659 pci_resource_len(pdev
, 3));
3660 if (!qdev
->doorbell_area
) {
3661 dev_err(&pdev
->dev
, "Doorbell register mapping failed.\n");
3666 ql_get_board_info(qdev
);
3669 qdev
->msg_enable
= netif_msg_init(debug
, default_msg
);
3670 spin_lock_init(&qdev
->hw_lock
);
3671 spin_lock_init(&qdev
->stats_lock
);
3673 /* make sure the EEPROM is good */
3674 err
= ql_get_flash_params(qdev
);
3676 dev_err(&pdev
->dev
, "Invalid FLASH.\n");
3680 if (!is_valid_ether_addr(qdev
->flash
.mac_addr
))
3683 memcpy(ndev
->dev_addr
, qdev
->flash
.mac_addr
, ndev
->addr_len
);
3684 memcpy(ndev
->perm_addr
, ndev
->dev_addr
, ndev
->addr_len
);
3686 /* Set up the default ring sizes. */
3687 qdev
->tx_ring_size
= NUM_TX_RING_ENTRIES
;
3688 qdev
->rx_ring_size
= NUM_RX_RING_ENTRIES
;
3690 /* Set up the coalescing parameters. */
3691 qdev
->rx_coalesce_usecs
= DFLT_COALESCE_WAIT
;
3692 qdev
->tx_coalesce_usecs
= DFLT_COALESCE_WAIT
;
3693 qdev
->rx_max_coalesced_frames
= DFLT_INTER_FRAME_WAIT
;
3694 qdev
->tx_max_coalesced_frames
= DFLT_INTER_FRAME_WAIT
;
3697 * Set up the operating parameters.
3701 qdev
->q_workqueue
= create_workqueue(ndev
->name
);
3702 qdev
->workqueue
= create_singlethread_workqueue(ndev
->name
);
3703 INIT_DELAYED_WORK(&qdev
->asic_reset_work
, ql_asic_reset_work
);
3704 INIT_DELAYED_WORK(&qdev
->mpi_reset_work
, ql_mpi_reset_work
);
3705 INIT_DELAYED_WORK(&qdev
->mpi_work
, ql_mpi_work
);
3708 dev_info(&pdev
->dev
, "%s\n", DRV_STRING
);
3709 dev_info(&pdev
->dev
, "Driver name: %s, Version: %s.\n",
3710 DRV_NAME
, DRV_VERSION
);
3714 ql_release_all(pdev
);
3715 pci_disable_device(pdev
);
3719 static int __devinit
qlge_probe(struct pci_dev
*pdev
,
3720 const struct pci_device_id
*pci_entry
)
3722 struct net_device
*ndev
= NULL
;
3723 struct ql_adapter
*qdev
= NULL
;
3724 static int cards_found
= 0;
3727 ndev
= alloc_etherdev(sizeof(struct ql_adapter
));
3731 err
= ql_init_device(pdev
, ndev
, cards_found
);
3737 qdev
= netdev_priv(ndev
);
3738 SET_NETDEV_DEV(ndev
, &pdev
->dev
);
3745 | NETIF_F_HW_VLAN_TX
3746 | NETIF_F_HW_VLAN_RX
| NETIF_F_HW_VLAN_FILTER
);
3748 if (test_bit(QL_DMA64
, &qdev
->flags
))
3749 ndev
->features
|= NETIF_F_HIGHDMA
;
3752 * Set up net_device structure.
3754 ndev
->tx_queue_len
= qdev
->tx_ring_size
;
3755 ndev
->irq
= pdev
->irq
;
3756 ndev
->open
= qlge_open
;
3757 ndev
->stop
= qlge_close
;
3758 ndev
->hard_start_xmit
= qlge_send
;
3759 SET_ETHTOOL_OPS(ndev
, &qlge_ethtool_ops
);
3760 ndev
->change_mtu
= qlge_change_mtu
;
3761 ndev
->get_stats
= qlge_get_stats
;
3762 ndev
->set_multicast_list
= qlge_set_multicast_list
;
3763 ndev
->set_mac_address
= qlge_set_mac_address
;
3764 ndev
->tx_timeout
= qlge_tx_timeout
;
3765 ndev
->watchdog_timeo
= 10 * HZ
;
3766 ndev
->vlan_rx_register
= ql_vlan_rx_register
;
3767 ndev
->vlan_rx_add_vid
= ql_vlan_rx_add_vid
;
3768 ndev
->vlan_rx_kill_vid
= ql_vlan_rx_kill_vid
;
3769 err
= register_netdev(ndev
);
3771 dev_err(&pdev
->dev
, "net device registration failed.\n");
3772 ql_release_all(pdev
);
3773 pci_disable_device(pdev
);
3776 netif_carrier_off(ndev
);
3777 netif_stop_queue(ndev
);
3778 ql_display_dev_info(ndev
);
3783 static void __devexit
qlge_remove(struct pci_dev
*pdev
)
3785 struct net_device
*ndev
= pci_get_drvdata(pdev
);
3786 unregister_netdev(ndev
);
3787 ql_release_all(pdev
);
3788 pci_disable_device(pdev
);
3793 * This callback is called by the PCI subsystem whenever
3794 * a PCI bus error is detected.
3796 static pci_ers_result_t
qlge_io_error_detected(struct pci_dev
*pdev
,
3797 enum pci_channel_state state
)
3799 struct net_device
*ndev
= pci_get_drvdata(pdev
);
3800 struct ql_adapter
*qdev
= netdev_priv(ndev
);
3802 if (netif_running(ndev
))
3803 ql_adapter_down(qdev
);
3805 pci_disable_device(pdev
);
3807 /* Request a slot reset. */
3808 return PCI_ERS_RESULT_NEED_RESET
;
3812 * This callback is called after the PCI buss has been reset.
3813 * Basically, this tries to restart the card from scratch.
3814 * This is a shortened version of the device probe/discovery code,
3815 * it resembles the first-half of the () routine.
3817 static pci_ers_result_t
qlge_io_slot_reset(struct pci_dev
*pdev
)
3819 struct net_device
*ndev
= pci_get_drvdata(pdev
);
3820 struct ql_adapter
*qdev
= netdev_priv(ndev
);
3822 if (pci_enable_device(pdev
)) {
3823 QPRINTK(qdev
, IFUP
, ERR
,
3824 "Cannot re-enable PCI device after reset.\n");
3825 return PCI_ERS_RESULT_DISCONNECT
;
3828 pci_set_master(pdev
);
3830 netif_carrier_off(ndev
);
3831 netif_stop_queue(ndev
);
3832 ql_adapter_reset(qdev
);
3834 /* Make sure the EEPROM is good */
3835 memcpy(ndev
->perm_addr
, ndev
->dev_addr
, ndev
->addr_len
);
3837 if (!is_valid_ether_addr(ndev
->perm_addr
)) {
3838 QPRINTK(qdev
, IFUP
, ERR
, "After reset, invalid MAC address.\n");
3839 return PCI_ERS_RESULT_DISCONNECT
;
3842 return PCI_ERS_RESULT_RECOVERED
;
3845 static void qlge_io_resume(struct pci_dev
*pdev
)
3847 struct net_device
*ndev
= pci_get_drvdata(pdev
);
3848 struct ql_adapter
*qdev
= netdev_priv(ndev
);
3850 pci_set_master(pdev
);
3852 if (netif_running(ndev
)) {
3853 if (ql_adapter_up(qdev
)) {
3854 QPRINTK(qdev
, IFUP
, ERR
,
3855 "Device initialization failed after reset.\n");
3860 netif_device_attach(ndev
);
3863 static struct pci_error_handlers qlge_err_handler
= {
3864 .error_detected
= qlge_io_error_detected
,
3865 .slot_reset
= qlge_io_slot_reset
,
3866 .resume
= qlge_io_resume
,
3869 static int qlge_suspend(struct pci_dev
*pdev
, pm_message_t state
)
3871 struct net_device
*ndev
= pci_get_drvdata(pdev
);
3872 struct ql_adapter
*qdev
= netdev_priv(ndev
);
3875 netif_device_detach(ndev
);
3877 if (netif_running(ndev
)) {
3878 err
= ql_adapter_down(qdev
);
3883 err
= pci_save_state(pdev
);
3887 pci_disable_device(pdev
);
3889 pci_set_power_state(pdev
, pci_choose_state(pdev
, state
));
3895 static int qlge_resume(struct pci_dev
*pdev
)
3897 struct net_device
*ndev
= pci_get_drvdata(pdev
);
3898 struct ql_adapter
*qdev
= netdev_priv(ndev
);
3901 pci_set_power_state(pdev
, PCI_D0
);
3902 pci_restore_state(pdev
);
3903 err
= pci_enable_device(pdev
);
3905 QPRINTK(qdev
, IFUP
, ERR
, "Cannot enable PCI device from suspend\n");
3908 pci_set_master(pdev
);
3910 pci_enable_wake(pdev
, PCI_D3hot
, 0);
3911 pci_enable_wake(pdev
, PCI_D3cold
, 0);
3913 if (netif_running(ndev
)) {
3914 err
= ql_adapter_up(qdev
);
3919 netif_device_attach(ndev
);
3923 #endif /* CONFIG_PM */
3925 static void qlge_shutdown(struct pci_dev
*pdev
)
3927 qlge_suspend(pdev
, PMSG_SUSPEND
);
3930 static struct pci_driver qlge_driver
= {
3932 .id_table
= qlge_pci_tbl
,
3933 .probe
= qlge_probe
,
3934 .remove
= __devexit_p(qlge_remove
),
3936 .suspend
= qlge_suspend
,
3937 .resume
= qlge_resume
,
3939 .shutdown
= qlge_shutdown
,
3940 .err_handler
= &qlge_err_handler
3943 static int __init
qlge_init_module(void)
3945 return pci_register_driver(&qlge_driver
);
3948 static void __exit
qlge_exit(void)
3950 pci_unregister_driver(&qlge_driver
);
3953 module_init(qlge_init_module
);
3954 module_exit(qlge_exit
);