2 * Linux driver for VMware's vmxnet3 ethernet NIC.
4 * Copyright (C) 2008-2009, VMware, Inc. All Rights Reserved.
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License as published by the
8 * Free Software Foundation; version 2 of the License and no later version.
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
13 * NON INFRINGEMENT. See the GNU General Public License for more
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 * The full GNU General Public License is included in this distribution in
21 * the file called "COPYING".
23 * Maintained by: Shreyas Bhatewara <pv-drivers@vmware.com>
27 #include <linux/module.h>
28 #include <net/ip6_checksum.h>
30 #include "vmxnet3_int.h"
32 char vmxnet3_driver_name
[] = "vmxnet3";
33 #define VMXNET3_DRIVER_DESC "VMware vmxnet3 virtual NIC driver"
37 * Last entry must be all 0s
39 static DEFINE_PCI_DEVICE_TABLE(vmxnet3_pciid_table
) = {
40 {PCI_VDEVICE(VMWARE
, PCI_DEVICE_ID_VMWARE_VMXNET3
)},
44 MODULE_DEVICE_TABLE(pci
, vmxnet3_pciid_table
);
46 static atomic_t devices_found
;
48 #define VMXNET3_MAX_DEVICES 10
49 static int enable_mq
= 1;
50 static int irq_share_mode
;
53 vmxnet3_write_mac_addr(struct vmxnet3_adapter
*adapter
, u8
*mac
);
56 * Enable/Disable the given intr
59 vmxnet3_enable_intr(struct vmxnet3_adapter
*adapter
, unsigned intr_idx
)
61 VMXNET3_WRITE_BAR0_REG(adapter
, VMXNET3_REG_IMR
+ intr_idx
* 8, 0);
66 vmxnet3_disable_intr(struct vmxnet3_adapter
*adapter
, unsigned intr_idx
)
68 VMXNET3_WRITE_BAR0_REG(adapter
, VMXNET3_REG_IMR
+ intr_idx
* 8, 1);
73 * Enable/Disable all intrs used by the device
76 vmxnet3_enable_all_intrs(struct vmxnet3_adapter
*adapter
)
80 for (i
= 0; i
< adapter
->intr
.num_intrs
; i
++)
81 vmxnet3_enable_intr(adapter
, i
);
82 adapter
->shared
->devRead
.intrConf
.intrCtrl
&=
83 cpu_to_le32(~VMXNET3_IC_DISABLE_ALL
);
88 vmxnet3_disable_all_intrs(struct vmxnet3_adapter
*adapter
)
92 adapter
->shared
->devRead
.intrConf
.intrCtrl
|=
93 cpu_to_le32(VMXNET3_IC_DISABLE_ALL
);
94 for (i
= 0; i
< adapter
->intr
.num_intrs
; i
++)
95 vmxnet3_disable_intr(adapter
, i
);
100 vmxnet3_ack_events(struct vmxnet3_adapter
*adapter
, u32 events
)
102 VMXNET3_WRITE_BAR1_REG(adapter
, VMXNET3_REG_ECR
, events
);
107 vmxnet3_tq_stopped(struct vmxnet3_tx_queue
*tq
, struct vmxnet3_adapter
*adapter
)
114 vmxnet3_tq_start(struct vmxnet3_tx_queue
*tq
, struct vmxnet3_adapter
*adapter
)
117 netif_start_subqueue(adapter
->netdev
, tq
- adapter
->tx_queue
);
122 vmxnet3_tq_wake(struct vmxnet3_tx_queue
*tq
, struct vmxnet3_adapter
*adapter
)
125 netif_wake_subqueue(adapter
->netdev
, (tq
- adapter
->tx_queue
));
130 vmxnet3_tq_stop(struct vmxnet3_tx_queue
*tq
, struct vmxnet3_adapter
*adapter
)
134 netif_stop_subqueue(adapter
->netdev
, (tq
- adapter
->tx_queue
));
139 * Check the link state. This may start or stop the tx queue.
142 vmxnet3_check_link(struct vmxnet3_adapter
*adapter
, bool affectTxQueue
)
148 spin_lock_irqsave(&adapter
->cmd_lock
, flags
);
149 VMXNET3_WRITE_BAR1_REG(adapter
, VMXNET3_REG_CMD
, VMXNET3_CMD_GET_LINK
);
150 ret
= VMXNET3_READ_BAR1_REG(adapter
, VMXNET3_REG_CMD
);
151 spin_unlock_irqrestore(&adapter
->cmd_lock
, flags
);
153 adapter
->link_speed
= ret
>> 16;
154 if (ret
& 1) { /* Link is up. */
155 printk(KERN_INFO
"%s: NIC Link is Up %d Mbps\n",
156 adapter
->netdev
->name
, adapter
->link_speed
);
157 if (!netif_carrier_ok(adapter
->netdev
))
158 netif_carrier_on(adapter
->netdev
);
161 for (i
= 0; i
< adapter
->num_tx_queues
; i
++)
162 vmxnet3_tq_start(&adapter
->tx_queue
[i
],
166 printk(KERN_INFO
"%s: NIC Link is Down\n",
167 adapter
->netdev
->name
);
168 if (netif_carrier_ok(adapter
->netdev
))
169 netif_carrier_off(adapter
->netdev
);
172 for (i
= 0; i
< adapter
->num_tx_queues
; i
++)
173 vmxnet3_tq_stop(&adapter
->tx_queue
[i
], adapter
);
179 vmxnet3_process_events(struct vmxnet3_adapter
*adapter
)
183 u32 events
= le32_to_cpu(adapter
->shared
->ecr
);
187 vmxnet3_ack_events(adapter
, events
);
189 /* Check if link state has changed */
190 if (events
& VMXNET3_ECR_LINK
)
191 vmxnet3_check_link(adapter
, true);
193 /* Check if there is an error on xmit/recv queues */
194 if (events
& (VMXNET3_ECR_TQERR
| VMXNET3_ECR_RQERR
)) {
195 spin_lock_irqsave(&adapter
->cmd_lock
, flags
);
196 VMXNET3_WRITE_BAR1_REG(adapter
, VMXNET3_REG_CMD
,
197 VMXNET3_CMD_GET_QUEUE_STATUS
);
198 spin_unlock_irqrestore(&adapter
->cmd_lock
, flags
);
200 for (i
= 0; i
< adapter
->num_tx_queues
; i
++)
201 if (adapter
->tqd_start
[i
].status
.stopped
)
202 dev_err(&adapter
->netdev
->dev
,
203 "%s: tq[%d] error 0x%x\n",
204 adapter
->netdev
->name
, i
, le32_to_cpu(
205 adapter
->tqd_start
[i
].status
.error
));
206 for (i
= 0; i
< adapter
->num_rx_queues
; i
++)
207 if (adapter
->rqd_start
[i
].status
.stopped
)
208 dev_err(&adapter
->netdev
->dev
,
209 "%s: rq[%d] error 0x%x\n",
210 adapter
->netdev
->name
, i
,
211 adapter
->rqd_start
[i
].status
.error
);
213 schedule_work(&adapter
->work
);
217 #ifdef __BIG_ENDIAN_BITFIELD
219 * The device expects the bitfields in shared structures to be written in
220 * little endian. When CPU is big endian, the following routines are used to
221 * correctly read and write into ABI.
222 * The general technique used here is : double word bitfields are defined in
223 * opposite order for big endian architecture. Then before reading them in
224 * driver the complete double word is translated using le32_to_cpu. Similarly
225 * After the driver writes into bitfields, cpu_to_le32 is used to translate the
226 * double words into required format.
227 * In order to avoid touching bits in shared structure more than once, temporary
228 * descriptors are used. These are passed as srcDesc to following functions.
230 static void vmxnet3_RxDescToCPU(const struct Vmxnet3_RxDesc
*srcDesc
,
231 struct Vmxnet3_RxDesc
*dstDesc
)
233 u32
*src
= (u32
*)srcDesc
+ 2;
234 u32
*dst
= (u32
*)dstDesc
+ 2;
235 dstDesc
->addr
= le64_to_cpu(srcDesc
->addr
);
236 *dst
= le32_to_cpu(*src
);
237 dstDesc
->ext1
= le32_to_cpu(srcDesc
->ext1
);
240 static void vmxnet3_TxDescToLe(const struct Vmxnet3_TxDesc
*srcDesc
,
241 struct Vmxnet3_TxDesc
*dstDesc
)
244 u32
*src
= (u32
*)(srcDesc
+ 1);
245 u32
*dst
= (u32
*)(dstDesc
+ 1);
247 /* Working backwards so that the gen bit is set at the end. */
248 for (i
= 2; i
> 0; i
--) {
251 *dst
= cpu_to_le32(*src
);
256 static void vmxnet3_RxCompToCPU(const struct Vmxnet3_RxCompDesc
*srcDesc
,
257 struct Vmxnet3_RxCompDesc
*dstDesc
)
260 u32
*src
= (u32
*)srcDesc
;
261 u32
*dst
= (u32
*)dstDesc
;
262 for (i
= 0; i
< sizeof(struct Vmxnet3_RxCompDesc
) / sizeof(u32
); i
++) {
263 *dst
= le32_to_cpu(*src
);
270 /* Used to read bitfield values from double words. */
271 static u32
get_bitfield32(const __le32
*bitfield
, u32 pos
, u32 size
)
273 u32 temp
= le32_to_cpu(*bitfield
);
274 u32 mask
= ((1 << size
) - 1) << pos
;
282 #endif /* __BIG_ENDIAN_BITFIELD */
284 #ifdef __BIG_ENDIAN_BITFIELD
286 # define VMXNET3_TXDESC_GET_GEN(txdesc) get_bitfield32(((const __le32 *) \
287 txdesc) + VMXNET3_TXD_GEN_DWORD_SHIFT, \
288 VMXNET3_TXD_GEN_SHIFT, VMXNET3_TXD_GEN_SIZE)
289 # define VMXNET3_TXDESC_GET_EOP(txdesc) get_bitfield32(((const __le32 *) \
290 txdesc) + VMXNET3_TXD_EOP_DWORD_SHIFT, \
291 VMXNET3_TXD_EOP_SHIFT, VMXNET3_TXD_EOP_SIZE)
292 # define VMXNET3_TCD_GET_GEN(tcd) get_bitfield32(((const __le32 *)tcd) + \
293 VMXNET3_TCD_GEN_DWORD_SHIFT, VMXNET3_TCD_GEN_SHIFT, \
294 VMXNET3_TCD_GEN_SIZE)
295 # define VMXNET3_TCD_GET_TXIDX(tcd) get_bitfield32((const __le32 *)tcd, \
296 VMXNET3_TCD_TXIDX_SHIFT, VMXNET3_TCD_TXIDX_SIZE)
297 # define vmxnet3_getRxComp(dstrcd, rcd, tmp) do { \
299 vmxnet3_RxCompToCPU((rcd), (tmp)); \
301 # define vmxnet3_getRxDesc(dstrxd, rxd, tmp) do { \
303 vmxnet3_RxDescToCPU((rxd), (tmp)); \
308 # define VMXNET3_TXDESC_GET_GEN(txdesc) ((txdesc)->gen)
309 # define VMXNET3_TXDESC_GET_EOP(txdesc) ((txdesc)->eop)
310 # define VMXNET3_TCD_GET_GEN(tcd) ((tcd)->gen)
311 # define VMXNET3_TCD_GET_TXIDX(tcd) ((tcd)->txdIdx)
312 # define vmxnet3_getRxComp(dstrcd, rcd, tmp) (dstrcd) = (rcd)
313 # define vmxnet3_getRxDesc(dstrxd, rxd, tmp) (dstrxd) = (rxd)
315 #endif /* __BIG_ENDIAN_BITFIELD */
319 vmxnet3_unmap_tx_buf(struct vmxnet3_tx_buf_info
*tbi
,
320 struct pci_dev
*pdev
)
322 if (tbi
->map_type
== VMXNET3_MAP_SINGLE
)
323 pci_unmap_single(pdev
, tbi
->dma_addr
, tbi
->len
,
325 else if (tbi
->map_type
== VMXNET3_MAP_PAGE
)
326 pci_unmap_page(pdev
, tbi
->dma_addr
, tbi
->len
,
329 BUG_ON(tbi
->map_type
!= VMXNET3_MAP_NONE
);
331 tbi
->map_type
= VMXNET3_MAP_NONE
; /* to help debugging */
336 vmxnet3_unmap_pkt(u32 eop_idx
, struct vmxnet3_tx_queue
*tq
,
337 struct pci_dev
*pdev
, struct vmxnet3_adapter
*adapter
)
342 /* no out of order completion */
343 BUG_ON(tq
->buf_info
[eop_idx
].sop_idx
!= tq
->tx_ring
.next2comp
);
344 BUG_ON(VMXNET3_TXDESC_GET_EOP(&(tq
->tx_ring
.base
[eop_idx
].txd
)) != 1);
346 skb
= tq
->buf_info
[eop_idx
].skb
;
348 tq
->buf_info
[eop_idx
].skb
= NULL
;
350 VMXNET3_INC_RING_IDX_ONLY(eop_idx
, tq
->tx_ring
.size
);
352 while (tq
->tx_ring
.next2comp
!= eop_idx
) {
353 vmxnet3_unmap_tx_buf(tq
->buf_info
+ tq
->tx_ring
.next2comp
,
356 /* update next2comp w/o tx_lock. Since we are marking more,
357 * instead of less, tx ring entries avail, the worst case is
358 * that the tx routine incorrectly re-queues a pkt due to
359 * insufficient tx ring entries.
361 vmxnet3_cmd_ring_adv_next2comp(&tq
->tx_ring
);
365 dev_kfree_skb_any(skb
);
371 vmxnet3_tq_tx_complete(struct vmxnet3_tx_queue
*tq
,
372 struct vmxnet3_adapter
*adapter
)
375 union Vmxnet3_GenericDesc
*gdesc
;
377 gdesc
= tq
->comp_ring
.base
+ tq
->comp_ring
.next2proc
;
378 while (VMXNET3_TCD_GET_GEN(&gdesc
->tcd
) == tq
->comp_ring
.gen
) {
379 completed
+= vmxnet3_unmap_pkt(VMXNET3_TCD_GET_TXIDX(
380 &gdesc
->tcd
), tq
, adapter
->pdev
,
383 vmxnet3_comp_ring_adv_next2proc(&tq
->comp_ring
);
384 gdesc
= tq
->comp_ring
.base
+ tq
->comp_ring
.next2proc
;
388 spin_lock(&tq
->tx_lock
);
389 if (unlikely(vmxnet3_tq_stopped(tq
, adapter
) &&
390 vmxnet3_cmd_ring_desc_avail(&tq
->tx_ring
) >
391 VMXNET3_WAKE_QUEUE_THRESHOLD(tq
) &&
392 netif_carrier_ok(adapter
->netdev
))) {
393 vmxnet3_tq_wake(tq
, adapter
);
395 spin_unlock(&tq
->tx_lock
);
402 vmxnet3_tq_cleanup(struct vmxnet3_tx_queue
*tq
,
403 struct vmxnet3_adapter
*adapter
)
407 while (tq
->tx_ring
.next2comp
!= tq
->tx_ring
.next2fill
) {
408 struct vmxnet3_tx_buf_info
*tbi
;
410 tbi
= tq
->buf_info
+ tq
->tx_ring
.next2comp
;
412 vmxnet3_unmap_tx_buf(tbi
, adapter
->pdev
);
414 dev_kfree_skb_any(tbi
->skb
);
417 vmxnet3_cmd_ring_adv_next2comp(&tq
->tx_ring
);
420 /* sanity check, verify all buffers are indeed unmapped and freed */
421 for (i
= 0; i
< tq
->tx_ring
.size
; i
++) {
422 BUG_ON(tq
->buf_info
[i
].skb
!= NULL
||
423 tq
->buf_info
[i
].map_type
!= VMXNET3_MAP_NONE
);
426 tq
->tx_ring
.gen
= VMXNET3_INIT_GEN
;
427 tq
->tx_ring
.next2fill
= tq
->tx_ring
.next2comp
= 0;
429 tq
->comp_ring
.gen
= VMXNET3_INIT_GEN
;
430 tq
->comp_ring
.next2proc
= 0;
435 vmxnet3_tq_destroy(struct vmxnet3_tx_queue
*tq
,
436 struct vmxnet3_adapter
*adapter
)
438 if (tq
->tx_ring
.base
) {
439 pci_free_consistent(adapter
->pdev
, tq
->tx_ring
.size
*
440 sizeof(struct Vmxnet3_TxDesc
),
441 tq
->tx_ring
.base
, tq
->tx_ring
.basePA
);
442 tq
->tx_ring
.base
= NULL
;
444 if (tq
->data_ring
.base
) {
445 pci_free_consistent(adapter
->pdev
, tq
->data_ring
.size
*
446 sizeof(struct Vmxnet3_TxDataDesc
),
447 tq
->data_ring
.base
, tq
->data_ring
.basePA
);
448 tq
->data_ring
.base
= NULL
;
450 if (tq
->comp_ring
.base
) {
451 pci_free_consistent(adapter
->pdev
, tq
->comp_ring
.size
*
452 sizeof(struct Vmxnet3_TxCompDesc
),
453 tq
->comp_ring
.base
, tq
->comp_ring
.basePA
);
454 tq
->comp_ring
.base
= NULL
;
461 /* Destroy all tx queues */
463 vmxnet3_tq_destroy_all(struct vmxnet3_adapter
*adapter
)
467 for (i
= 0; i
< adapter
->num_tx_queues
; i
++)
468 vmxnet3_tq_destroy(&adapter
->tx_queue
[i
], adapter
);
473 vmxnet3_tq_init(struct vmxnet3_tx_queue
*tq
,
474 struct vmxnet3_adapter
*adapter
)
478 /* reset the tx ring contents to 0 and reset the tx ring states */
479 memset(tq
->tx_ring
.base
, 0, tq
->tx_ring
.size
*
480 sizeof(struct Vmxnet3_TxDesc
));
481 tq
->tx_ring
.next2fill
= tq
->tx_ring
.next2comp
= 0;
482 tq
->tx_ring
.gen
= VMXNET3_INIT_GEN
;
484 memset(tq
->data_ring
.base
, 0, tq
->data_ring
.size
*
485 sizeof(struct Vmxnet3_TxDataDesc
));
487 /* reset the tx comp ring contents to 0 and reset comp ring states */
488 memset(tq
->comp_ring
.base
, 0, tq
->comp_ring
.size
*
489 sizeof(struct Vmxnet3_TxCompDesc
));
490 tq
->comp_ring
.next2proc
= 0;
491 tq
->comp_ring
.gen
= VMXNET3_INIT_GEN
;
493 /* reset the bookkeeping data */
494 memset(tq
->buf_info
, 0, sizeof(tq
->buf_info
[0]) * tq
->tx_ring
.size
);
495 for (i
= 0; i
< tq
->tx_ring
.size
; i
++)
496 tq
->buf_info
[i
].map_type
= VMXNET3_MAP_NONE
;
498 /* stats are not reset */
503 vmxnet3_tq_create(struct vmxnet3_tx_queue
*tq
,
504 struct vmxnet3_adapter
*adapter
)
506 BUG_ON(tq
->tx_ring
.base
|| tq
->data_ring
.base
||
507 tq
->comp_ring
.base
|| tq
->buf_info
);
509 tq
->tx_ring
.base
= pci_alloc_consistent(adapter
->pdev
, tq
->tx_ring
.size
510 * sizeof(struct Vmxnet3_TxDesc
),
511 &tq
->tx_ring
.basePA
);
512 if (!tq
->tx_ring
.base
) {
513 printk(KERN_ERR
"%s: failed to allocate tx ring\n",
514 adapter
->netdev
->name
);
518 tq
->data_ring
.base
= pci_alloc_consistent(adapter
->pdev
,
520 sizeof(struct Vmxnet3_TxDataDesc
),
521 &tq
->data_ring
.basePA
);
522 if (!tq
->data_ring
.base
) {
523 printk(KERN_ERR
"%s: failed to allocate data ring\n",
524 adapter
->netdev
->name
);
528 tq
->comp_ring
.base
= pci_alloc_consistent(adapter
->pdev
,
530 sizeof(struct Vmxnet3_TxCompDesc
),
531 &tq
->comp_ring
.basePA
);
532 if (!tq
->comp_ring
.base
) {
533 printk(KERN_ERR
"%s: failed to allocate tx comp ring\n",
534 adapter
->netdev
->name
);
538 tq
->buf_info
= kcalloc(tq
->tx_ring
.size
, sizeof(tq
->buf_info
[0]),
546 vmxnet3_tq_destroy(tq
, adapter
);
551 vmxnet3_tq_cleanup_all(struct vmxnet3_adapter
*adapter
)
555 for (i
= 0; i
< adapter
->num_tx_queues
; i
++)
556 vmxnet3_tq_cleanup(&adapter
->tx_queue
[i
], adapter
);
560 * starting from ring->next2fill, allocate rx buffers for the given ring
561 * of the rx queue and update the rx desc. stop after @num_to_alloc buffers
562 * are allocated or allocation fails
566 vmxnet3_rq_alloc_rx_buf(struct vmxnet3_rx_queue
*rq
, u32 ring_idx
,
567 int num_to_alloc
, struct vmxnet3_adapter
*adapter
)
569 int num_allocated
= 0;
570 struct vmxnet3_rx_buf_info
*rbi_base
= rq
->buf_info
[ring_idx
];
571 struct vmxnet3_cmd_ring
*ring
= &rq
->rx_ring
[ring_idx
];
574 while (num_allocated
<= num_to_alloc
) {
575 struct vmxnet3_rx_buf_info
*rbi
;
576 union Vmxnet3_GenericDesc
*gd
;
578 rbi
= rbi_base
+ ring
->next2fill
;
579 gd
= ring
->base
+ ring
->next2fill
;
581 if (rbi
->buf_type
== VMXNET3_RX_BUF_SKB
) {
582 if (rbi
->skb
== NULL
) {
583 rbi
->skb
= __netdev_alloc_skb_ip_align(adapter
->netdev
,
586 if (unlikely(rbi
->skb
== NULL
)) {
587 rq
->stats
.rx_buf_alloc_failure
++;
591 rbi
->dma_addr
= pci_map_single(adapter
->pdev
,
592 rbi
->skb
->data
, rbi
->len
,
595 /* rx buffer skipped by the device */
597 val
= VMXNET3_RXD_BTYPE_HEAD
<< VMXNET3_RXD_BTYPE_SHIFT
;
599 BUG_ON(rbi
->buf_type
!= VMXNET3_RX_BUF_PAGE
||
600 rbi
->len
!= PAGE_SIZE
);
602 if (rbi
->page
== NULL
) {
603 rbi
->page
= alloc_page(GFP_ATOMIC
);
604 if (unlikely(rbi
->page
== NULL
)) {
605 rq
->stats
.rx_buf_alloc_failure
++;
608 rbi
->dma_addr
= pci_map_page(adapter
->pdev
,
609 rbi
->page
, 0, PAGE_SIZE
,
612 /* rx buffers skipped by the device */
614 val
= VMXNET3_RXD_BTYPE_BODY
<< VMXNET3_RXD_BTYPE_SHIFT
;
617 BUG_ON(rbi
->dma_addr
== 0);
618 gd
->rxd
.addr
= cpu_to_le64(rbi
->dma_addr
);
619 gd
->dword
[2] = cpu_to_le32((!ring
->gen
<< VMXNET3_RXD_GEN_SHIFT
)
622 /* Fill the last buffer but dont mark it ready, or else the
623 * device will think that the queue is full */
624 if (num_allocated
== num_to_alloc
)
627 gd
->dword
[2] |= cpu_to_le32(ring
->gen
<< VMXNET3_RXD_GEN_SHIFT
);
629 vmxnet3_cmd_ring_adv_next2fill(ring
);
632 netdev_dbg(adapter
->netdev
,
633 "alloc_rx_buf: %d allocated, next2fill %u, next2comp %u\n",
634 num_allocated
, ring
->next2fill
, ring
->next2comp
);
636 /* so that the device can distinguish a full ring and an empty ring */
637 BUG_ON(num_allocated
!= 0 && ring
->next2fill
== ring
->next2comp
);
639 return num_allocated
;
644 vmxnet3_append_frag(struct sk_buff
*skb
, struct Vmxnet3_RxCompDesc
*rcd
,
645 struct vmxnet3_rx_buf_info
*rbi
)
647 struct skb_frag_struct
*frag
= skb_shinfo(skb
)->frags
+
648 skb_shinfo(skb
)->nr_frags
;
650 BUG_ON(skb_shinfo(skb
)->nr_frags
>= MAX_SKB_FRAGS
);
652 __skb_frag_set_page(frag
, rbi
->page
);
653 frag
->page_offset
= 0;
654 skb_frag_size_set(frag
, rcd
->len
);
655 skb
->data_len
+= rcd
->len
;
656 skb
->truesize
+= PAGE_SIZE
;
657 skb_shinfo(skb
)->nr_frags
++;
662 vmxnet3_map_pkt(struct sk_buff
*skb
, struct vmxnet3_tx_ctx
*ctx
,
663 struct vmxnet3_tx_queue
*tq
, struct pci_dev
*pdev
,
664 struct vmxnet3_adapter
*adapter
)
667 unsigned long buf_offset
;
669 union Vmxnet3_GenericDesc
*gdesc
;
670 struct vmxnet3_tx_buf_info
*tbi
= NULL
;
672 BUG_ON(ctx
->copy_size
> skb_headlen(skb
));
674 /* use the previous gen bit for the SOP desc */
675 dw2
= (tq
->tx_ring
.gen
^ 0x1) << VMXNET3_TXD_GEN_SHIFT
;
677 ctx
->sop_txd
= tq
->tx_ring
.base
+ tq
->tx_ring
.next2fill
;
678 gdesc
= ctx
->sop_txd
; /* both loops below can be skipped */
680 /* no need to map the buffer if headers are copied */
681 if (ctx
->copy_size
) {
682 ctx
->sop_txd
->txd
.addr
= cpu_to_le64(tq
->data_ring
.basePA
+
683 tq
->tx_ring
.next2fill
*
684 sizeof(struct Vmxnet3_TxDataDesc
));
685 ctx
->sop_txd
->dword
[2] = cpu_to_le32(dw2
| ctx
->copy_size
);
686 ctx
->sop_txd
->dword
[3] = 0;
688 tbi
= tq
->buf_info
+ tq
->tx_ring
.next2fill
;
689 tbi
->map_type
= VMXNET3_MAP_NONE
;
691 netdev_dbg(adapter
->netdev
,
692 "txd[%u]: 0x%Lx 0x%x 0x%x\n",
693 tq
->tx_ring
.next2fill
,
694 le64_to_cpu(ctx
->sop_txd
->txd
.addr
),
695 ctx
->sop_txd
->dword
[2], ctx
->sop_txd
->dword
[3]);
696 vmxnet3_cmd_ring_adv_next2fill(&tq
->tx_ring
);
698 /* use the right gen for non-SOP desc */
699 dw2
= tq
->tx_ring
.gen
<< VMXNET3_TXD_GEN_SHIFT
;
702 /* linear part can use multiple tx desc if it's big */
703 len
= skb_headlen(skb
) - ctx
->copy_size
;
704 buf_offset
= ctx
->copy_size
;
708 if (len
< VMXNET3_MAX_TX_BUF_SIZE
) {
712 buf_size
= VMXNET3_MAX_TX_BUF_SIZE
;
713 /* spec says that for TxDesc.len, 0 == 2^14 */
716 tbi
= tq
->buf_info
+ tq
->tx_ring
.next2fill
;
717 tbi
->map_type
= VMXNET3_MAP_SINGLE
;
718 tbi
->dma_addr
= pci_map_single(adapter
->pdev
,
719 skb
->data
+ buf_offset
, buf_size
,
724 gdesc
= tq
->tx_ring
.base
+ tq
->tx_ring
.next2fill
;
725 BUG_ON(gdesc
->txd
.gen
== tq
->tx_ring
.gen
);
727 gdesc
->txd
.addr
= cpu_to_le64(tbi
->dma_addr
);
728 gdesc
->dword
[2] = cpu_to_le32(dw2
);
731 netdev_dbg(adapter
->netdev
,
732 "txd[%u]: 0x%Lx 0x%x 0x%x\n",
733 tq
->tx_ring
.next2fill
, le64_to_cpu(gdesc
->txd
.addr
),
734 le32_to_cpu(gdesc
->dword
[2]), gdesc
->dword
[3]);
735 vmxnet3_cmd_ring_adv_next2fill(&tq
->tx_ring
);
736 dw2
= tq
->tx_ring
.gen
<< VMXNET3_TXD_GEN_SHIFT
;
739 buf_offset
+= buf_size
;
742 for (i
= 0; i
< skb_shinfo(skb
)->nr_frags
; i
++) {
743 const struct skb_frag_struct
*frag
= &skb_shinfo(skb
)->frags
[i
];
747 len
= skb_frag_size(frag
);
749 tbi
= tq
->buf_info
+ tq
->tx_ring
.next2fill
;
750 if (len
< VMXNET3_MAX_TX_BUF_SIZE
) {
754 buf_size
= VMXNET3_MAX_TX_BUF_SIZE
;
755 /* spec says that for TxDesc.len, 0 == 2^14 */
757 tbi
->map_type
= VMXNET3_MAP_PAGE
;
758 tbi
->dma_addr
= skb_frag_dma_map(&adapter
->pdev
->dev
, frag
,
759 buf_offset
, buf_size
,
764 gdesc
= tq
->tx_ring
.base
+ tq
->tx_ring
.next2fill
;
765 BUG_ON(gdesc
->txd
.gen
== tq
->tx_ring
.gen
);
767 gdesc
->txd
.addr
= cpu_to_le64(tbi
->dma_addr
);
768 gdesc
->dword
[2] = cpu_to_le32(dw2
);
771 netdev_dbg(adapter
->netdev
,
772 "txd[%u]: 0x%llu %u %u\n",
773 tq
->tx_ring
.next2fill
, le64_to_cpu(gdesc
->txd
.addr
),
774 le32_to_cpu(gdesc
->dword
[2]), gdesc
->dword
[3]);
775 vmxnet3_cmd_ring_adv_next2fill(&tq
->tx_ring
);
776 dw2
= tq
->tx_ring
.gen
<< VMXNET3_TXD_GEN_SHIFT
;
779 buf_offset
+= buf_size
;
783 ctx
->eop_txd
= gdesc
;
785 /* set the last buf_info for the pkt */
787 tbi
->sop_idx
= ctx
->sop_txd
- tq
->tx_ring
.base
;
791 /* Init all tx queues */
793 vmxnet3_tq_init_all(struct vmxnet3_adapter
*adapter
)
797 for (i
= 0; i
< adapter
->num_tx_queues
; i
++)
798 vmxnet3_tq_init(&adapter
->tx_queue
[i
], adapter
);
803 * parse and copy relevant protocol headers:
804 * For a tso pkt, relevant headers are L2/3/4 including options
805 * For a pkt requesting csum offloading, they are L2/3 and may include L4
806 * if it's a TCP/UDP pkt
809 * -1: error happens during parsing
810 * 0: protocol headers parsed, but too big to be copied
811 * 1: protocol headers parsed and copied
814 * 1. related *ctx fields are updated.
815 * 2. ctx->copy_size is # of bytes copied
816 * 3. the portion copied is guaranteed to be in the linear part
820 vmxnet3_parse_and_copy_hdr(struct sk_buff
*skb
, struct vmxnet3_tx_queue
*tq
,
821 struct vmxnet3_tx_ctx
*ctx
,
822 struct vmxnet3_adapter
*adapter
)
824 struct Vmxnet3_TxDataDesc
*tdd
;
826 if (ctx
->mss
) { /* TSO */
827 ctx
->eth_ip_hdr_size
= skb_transport_offset(skb
);
828 ctx
->l4_hdr_size
= tcp_hdrlen(skb
);
829 ctx
->copy_size
= ctx
->eth_ip_hdr_size
+ ctx
->l4_hdr_size
;
831 if (skb
->ip_summed
== CHECKSUM_PARTIAL
) {
832 ctx
->eth_ip_hdr_size
= skb_checksum_start_offset(skb
);
835 const struct iphdr
*iph
= ip_hdr(skb
);
837 if (iph
->protocol
== IPPROTO_TCP
)
838 ctx
->l4_hdr_size
= tcp_hdrlen(skb
);
839 else if (iph
->protocol
== IPPROTO_UDP
)
840 ctx
->l4_hdr_size
= sizeof(struct udphdr
);
842 ctx
->l4_hdr_size
= 0;
844 /* for simplicity, don't copy L4 headers */
845 ctx
->l4_hdr_size
= 0;
847 ctx
->copy_size
= min(ctx
->eth_ip_hdr_size
+
848 ctx
->l4_hdr_size
, skb
->len
);
850 ctx
->eth_ip_hdr_size
= 0;
851 ctx
->l4_hdr_size
= 0;
852 /* copy as much as allowed */
853 ctx
->copy_size
= min((unsigned int)VMXNET3_HDR_COPY_SIZE
857 /* make sure headers are accessible directly */
858 if (unlikely(!pskb_may_pull(skb
, ctx
->copy_size
)))
862 if (unlikely(ctx
->copy_size
> VMXNET3_HDR_COPY_SIZE
)) {
863 tq
->stats
.oversized_hdr
++;
868 tdd
= tq
->data_ring
.base
+ tq
->tx_ring
.next2fill
;
870 memcpy(tdd
->data
, skb
->data
, ctx
->copy_size
);
871 netdev_dbg(adapter
->netdev
,
872 "copy %u bytes to dataRing[%u]\n",
873 ctx
->copy_size
, tq
->tx_ring
.next2fill
);
882 vmxnet3_prepare_tso(struct sk_buff
*skb
,
883 struct vmxnet3_tx_ctx
*ctx
)
885 struct tcphdr
*tcph
= tcp_hdr(skb
);
888 struct iphdr
*iph
= ip_hdr(skb
);
891 tcph
->check
= ~csum_tcpudp_magic(iph
->saddr
, iph
->daddr
, 0,
894 struct ipv6hdr
*iph
= ipv6_hdr(skb
);
896 tcph
->check
= ~csum_ipv6_magic(&iph
->saddr
, &iph
->daddr
, 0,
901 static int txd_estimate(const struct sk_buff
*skb
)
903 int count
= VMXNET3_TXD_NEEDED(skb_headlen(skb
)) + 1;
906 for (i
= 0; i
< skb_shinfo(skb
)->nr_frags
; i
++) {
907 const struct skb_frag_struct
*frag
= &skb_shinfo(skb
)->frags
[i
];
909 count
+= VMXNET3_TXD_NEEDED(skb_frag_size(frag
));
915 * Transmits a pkt thru a given tq
917 * NETDEV_TX_OK: descriptors are setup successfully
918 * NETDEV_TX_OK: error occurred, the pkt is dropped
919 * NETDEV_TX_BUSY: tx ring is full, queue is stopped
922 * 1. tx ring may be changed
923 * 2. tq stats may be updated accordingly
924 * 3. shared->txNumDeferred may be updated
928 vmxnet3_tq_xmit(struct sk_buff
*skb
, struct vmxnet3_tx_queue
*tq
,
929 struct vmxnet3_adapter
*adapter
, struct net_device
*netdev
)
934 struct vmxnet3_tx_ctx ctx
;
935 union Vmxnet3_GenericDesc
*gdesc
;
936 #ifdef __BIG_ENDIAN_BITFIELD
937 /* Use temporary descriptor to avoid touching bits multiple times */
938 union Vmxnet3_GenericDesc tempTxDesc
;
941 count
= txd_estimate(skb
);
943 ctx
.ipv4
= (vlan_get_protocol(skb
) == cpu_to_be16(ETH_P_IP
));
945 ctx
.mss
= skb_shinfo(skb
)->gso_size
;
947 if (skb_header_cloned(skb
)) {
948 if (unlikely(pskb_expand_head(skb
, 0, 0,
950 tq
->stats
.drop_tso
++;
953 tq
->stats
.copy_skb_header
++;
955 vmxnet3_prepare_tso(skb
, &ctx
);
957 if (unlikely(count
> VMXNET3_MAX_TXD_PER_PKT
)) {
959 /* non-tso pkts must not use more than
960 * VMXNET3_MAX_TXD_PER_PKT entries
962 if (skb_linearize(skb
) != 0) {
963 tq
->stats
.drop_too_many_frags
++;
966 tq
->stats
.linearized
++;
968 /* recalculate the # of descriptors to use */
969 count
= VMXNET3_TXD_NEEDED(skb_headlen(skb
)) + 1;
973 spin_lock_irqsave(&tq
->tx_lock
, flags
);
975 if (count
> vmxnet3_cmd_ring_desc_avail(&tq
->tx_ring
)) {
976 tq
->stats
.tx_ring_full
++;
977 netdev_dbg(adapter
->netdev
,
978 "tx queue stopped on %s, next2comp %u"
979 " next2fill %u\n", adapter
->netdev
->name
,
980 tq
->tx_ring
.next2comp
, tq
->tx_ring
.next2fill
);
982 vmxnet3_tq_stop(tq
, adapter
);
983 spin_unlock_irqrestore(&tq
->tx_lock
, flags
);
984 return NETDEV_TX_BUSY
;
988 ret
= vmxnet3_parse_and_copy_hdr(skb
, tq
, &ctx
, adapter
);
990 BUG_ON(ret
<= 0 && ctx
.copy_size
!= 0);
991 /* hdrs parsed, check against other limits */
993 if (unlikely(ctx
.eth_ip_hdr_size
+ ctx
.l4_hdr_size
>
994 VMXNET3_MAX_TX_BUF_SIZE
)) {
998 if (skb
->ip_summed
== CHECKSUM_PARTIAL
) {
999 if (unlikely(ctx
.eth_ip_hdr_size
+
1001 VMXNET3_MAX_CSUM_OFFSET
)) {
1007 tq
->stats
.drop_hdr_inspect_err
++;
1008 goto unlock_drop_pkt
;
1011 /* fill tx descs related to addr & len */
1012 vmxnet3_map_pkt(skb
, &ctx
, tq
, adapter
->pdev
, adapter
);
1014 /* setup the EOP desc */
1015 ctx
.eop_txd
->dword
[3] = cpu_to_le32(VMXNET3_TXD_CQ
| VMXNET3_TXD_EOP
);
1017 /* setup the SOP desc */
1018 #ifdef __BIG_ENDIAN_BITFIELD
1019 gdesc
= &tempTxDesc
;
1020 gdesc
->dword
[2] = ctx
.sop_txd
->dword
[2];
1021 gdesc
->dword
[3] = ctx
.sop_txd
->dword
[3];
1023 gdesc
= ctx
.sop_txd
;
1026 gdesc
->txd
.hlen
= ctx
.eth_ip_hdr_size
+ ctx
.l4_hdr_size
;
1027 gdesc
->txd
.om
= VMXNET3_OM_TSO
;
1028 gdesc
->txd
.msscof
= ctx
.mss
;
1029 le32_add_cpu(&tq
->shared
->txNumDeferred
, (skb
->len
-
1030 gdesc
->txd
.hlen
+ ctx
.mss
- 1) / ctx
.mss
);
1032 if (skb
->ip_summed
== CHECKSUM_PARTIAL
) {
1033 gdesc
->txd
.hlen
= ctx
.eth_ip_hdr_size
;
1034 gdesc
->txd
.om
= VMXNET3_OM_CSUM
;
1035 gdesc
->txd
.msscof
= ctx
.eth_ip_hdr_size
+
1039 gdesc
->txd
.msscof
= 0;
1041 le32_add_cpu(&tq
->shared
->txNumDeferred
, 1);
1044 if (vlan_tx_tag_present(skb
)) {
1046 gdesc
->txd
.tci
= vlan_tx_tag_get(skb
);
1049 /* finally flips the GEN bit of the SOP desc. */
1050 gdesc
->dword
[2] = cpu_to_le32(le32_to_cpu(gdesc
->dword
[2]) ^
1052 #ifdef __BIG_ENDIAN_BITFIELD
1053 /* Finished updating in bitfields of Tx Desc, so write them in original
1056 vmxnet3_TxDescToLe((struct Vmxnet3_TxDesc
*)gdesc
,
1057 (struct Vmxnet3_TxDesc
*)ctx
.sop_txd
);
1058 gdesc
= ctx
.sop_txd
;
1060 netdev_dbg(adapter
->netdev
,
1061 "txd[%u]: SOP 0x%Lx 0x%x 0x%x\n",
1063 tq
->tx_ring
.base
), le64_to_cpu(gdesc
->txd
.addr
),
1064 le32_to_cpu(gdesc
->dword
[2]), le32_to_cpu(gdesc
->dword
[3]));
1066 spin_unlock_irqrestore(&tq
->tx_lock
, flags
);
1068 if (le32_to_cpu(tq
->shared
->txNumDeferred
) >=
1069 le32_to_cpu(tq
->shared
->txThreshold
)) {
1070 tq
->shared
->txNumDeferred
= 0;
1071 VMXNET3_WRITE_BAR0_REG(adapter
,
1072 VMXNET3_REG_TXPROD
+ tq
->qid
* 8,
1073 tq
->tx_ring
.next2fill
);
1076 return NETDEV_TX_OK
;
1079 tq
->stats
.drop_oversized_hdr
++;
1081 spin_unlock_irqrestore(&tq
->tx_lock
, flags
);
1083 tq
->stats
.drop_total
++;
1085 return NETDEV_TX_OK
;
1090 vmxnet3_xmit_frame(struct sk_buff
*skb
, struct net_device
*netdev
)
1092 struct vmxnet3_adapter
*adapter
= netdev_priv(netdev
);
1094 BUG_ON(skb
->queue_mapping
> adapter
->num_tx_queues
);
1095 return vmxnet3_tq_xmit(skb
,
1096 &adapter
->tx_queue
[skb
->queue_mapping
],
1102 vmxnet3_rx_csum(struct vmxnet3_adapter
*adapter
,
1103 struct sk_buff
*skb
,
1104 union Vmxnet3_GenericDesc
*gdesc
)
1106 if (!gdesc
->rcd
.cnc
&& adapter
->netdev
->features
& NETIF_F_RXCSUM
) {
1107 /* typical case: TCP/UDP over IP and both csums are correct */
1108 if ((le32_to_cpu(gdesc
->dword
[3]) & VMXNET3_RCD_CSUM_OK
) ==
1109 VMXNET3_RCD_CSUM_OK
) {
1110 skb
->ip_summed
= CHECKSUM_UNNECESSARY
;
1111 BUG_ON(!(gdesc
->rcd
.tcp
|| gdesc
->rcd
.udp
));
1112 BUG_ON(!(gdesc
->rcd
.v4
|| gdesc
->rcd
.v6
));
1113 BUG_ON(gdesc
->rcd
.frg
);
1115 if (gdesc
->rcd
.csum
) {
1116 skb
->csum
= htons(gdesc
->rcd
.csum
);
1117 skb
->ip_summed
= CHECKSUM_PARTIAL
;
1119 skb_checksum_none_assert(skb
);
1123 skb_checksum_none_assert(skb
);
1129 vmxnet3_rx_error(struct vmxnet3_rx_queue
*rq
, struct Vmxnet3_RxCompDesc
*rcd
,
1130 struct vmxnet3_rx_ctx
*ctx
, struct vmxnet3_adapter
*adapter
)
1132 rq
->stats
.drop_err
++;
1134 rq
->stats
.drop_fcs
++;
1136 rq
->stats
.drop_total
++;
1139 * We do not unmap and chain the rx buffer to the skb.
1140 * We basically pretend this buffer is not used and will be recycled
1141 * by vmxnet3_rq_alloc_rx_buf()
1145 * ctx->skb may be NULL if this is the first and the only one
1149 dev_kfree_skb_irq(ctx
->skb
);
1156 vmxnet3_rq_rx_complete(struct vmxnet3_rx_queue
*rq
,
1157 struct vmxnet3_adapter
*adapter
, int quota
)
1159 static const u32 rxprod_reg
[2] = {
1160 VMXNET3_REG_RXPROD
, VMXNET3_REG_RXPROD2
1163 bool skip_page_frags
= false;
1164 struct Vmxnet3_RxCompDesc
*rcd
;
1165 struct vmxnet3_rx_ctx
*ctx
= &rq
->rx_ctx
;
1166 #ifdef __BIG_ENDIAN_BITFIELD
1167 struct Vmxnet3_RxDesc rxCmdDesc
;
1168 struct Vmxnet3_RxCompDesc rxComp
;
1170 vmxnet3_getRxComp(rcd
, &rq
->comp_ring
.base
[rq
->comp_ring
.next2proc
].rcd
,
1172 while (rcd
->gen
== rq
->comp_ring
.gen
) {
1173 struct vmxnet3_rx_buf_info
*rbi
;
1174 struct sk_buff
*skb
, *new_skb
= NULL
;
1175 struct page
*new_page
= NULL
;
1177 struct Vmxnet3_RxDesc
*rxd
;
1179 struct vmxnet3_cmd_ring
*ring
= NULL
;
1180 if (num_rxd
>= quota
) {
1181 /* we may stop even before we see the EOP desc of
1187 BUG_ON(rcd
->rqID
!= rq
->qid
&& rcd
->rqID
!= rq
->qid2
);
1189 ring_idx
= rcd
->rqID
< adapter
->num_rx_queues
? 0 : 1;
1190 ring
= rq
->rx_ring
+ ring_idx
;
1191 vmxnet3_getRxDesc(rxd
, &rq
->rx_ring
[ring_idx
].base
[idx
].rxd
,
1193 rbi
= rq
->buf_info
[ring_idx
] + idx
;
1195 BUG_ON(rxd
->addr
!= rbi
->dma_addr
||
1196 rxd
->len
!= rbi
->len
);
1198 if (unlikely(rcd
->eop
&& rcd
->err
)) {
1199 vmxnet3_rx_error(rq
, rcd
, ctx
, adapter
);
1203 if (rcd
->sop
) { /* first buf of the pkt */
1204 BUG_ON(rxd
->btype
!= VMXNET3_RXD_BTYPE_HEAD
||
1205 rcd
->rqID
!= rq
->qid
);
1207 BUG_ON(rbi
->buf_type
!= VMXNET3_RX_BUF_SKB
);
1208 BUG_ON(ctx
->skb
!= NULL
|| rbi
->skb
== NULL
);
1210 if (unlikely(rcd
->len
== 0)) {
1211 /* Pretend the rx buffer is skipped. */
1212 BUG_ON(!(rcd
->sop
&& rcd
->eop
));
1213 netdev_dbg(adapter
->netdev
,
1214 "rxRing[%u][%u] 0 length\n",
1219 skip_page_frags
= false;
1220 ctx
->skb
= rbi
->skb
;
1221 new_skb
= netdev_alloc_skb_ip_align(adapter
->netdev
,
1223 if (new_skb
== NULL
) {
1224 /* Skb allocation failed, do not handover this
1225 * skb to stack. Reuse it. Drop the existing pkt
1227 rq
->stats
.rx_buf_alloc_failure
++;
1229 rq
->stats
.drop_total
++;
1230 skip_page_frags
= true;
1234 pci_unmap_single(adapter
->pdev
, rbi
->dma_addr
, rbi
->len
,
1235 PCI_DMA_FROMDEVICE
);
1237 skb_put(ctx
->skb
, rcd
->len
);
1239 /* Immediate refill */
1241 rbi
->dma_addr
= pci_map_single(adapter
->pdev
,
1242 rbi
->skb
->data
, rbi
->len
,
1243 PCI_DMA_FROMDEVICE
);
1244 rxd
->addr
= cpu_to_le64(rbi
->dma_addr
);
1245 rxd
->len
= rbi
->len
;
1248 BUG_ON(ctx
->skb
== NULL
&& !skip_page_frags
);
1250 /* non SOP buffer must be type 1 in most cases */
1251 BUG_ON(rbi
->buf_type
!= VMXNET3_RX_BUF_PAGE
);
1252 BUG_ON(rxd
->btype
!= VMXNET3_RXD_BTYPE_BODY
);
1254 /* If an sop buffer was dropped, skip all
1255 * following non-sop fragments. They will be reused.
1257 if (skip_page_frags
)
1260 new_page
= alloc_page(GFP_ATOMIC
);
1261 if (unlikely(new_page
== NULL
)) {
1262 /* Replacement page frag could not be allocated.
1263 * Reuse this page. Drop the pkt and free the
1264 * skb which contained this page as a frag. Skip
1265 * processing all the following non-sop frags.
1267 rq
->stats
.rx_buf_alloc_failure
++;
1268 dev_kfree_skb(ctx
->skb
);
1270 skip_page_frags
= true;
1275 pci_unmap_page(adapter
->pdev
,
1276 rbi
->dma_addr
, rbi
->len
,
1277 PCI_DMA_FROMDEVICE
);
1279 vmxnet3_append_frag(ctx
->skb
, rcd
, rbi
);
1282 /* Immediate refill */
1283 rbi
->page
= new_page
;
1284 rbi
->dma_addr
= pci_map_page(adapter
->pdev
, rbi
->page
,
1286 PCI_DMA_FROMDEVICE
);
1287 rxd
->addr
= cpu_to_le64(rbi
->dma_addr
);
1288 rxd
->len
= rbi
->len
;
1294 skb
->len
+= skb
->data_len
;
1296 vmxnet3_rx_csum(adapter
, skb
,
1297 (union Vmxnet3_GenericDesc
*)rcd
);
1298 skb
->protocol
= eth_type_trans(skb
, adapter
->netdev
);
1300 if (unlikely(rcd
->ts
))
1301 __vlan_hwaccel_put_tag(skb
, rcd
->tci
);
1303 if (adapter
->netdev
->features
& NETIF_F_LRO
)
1304 netif_receive_skb(skb
);
1306 napi_gro_receive(&rq
->napi
, skb
);
1312 /* device may have skipped some rx descs */
1313 ring
->next2comp
= idx
;
1314 num_to_alloc
= vmxnet3_cmd_ring_desc_avail(ring
);
1315 ring
= rq
->rx_ring
+ ring_idx
;
1316 while (num_to_alloc
) {
1317 vmxnet3_getRxDesc(rxd
, &ring
->base
[ring
->next2fill
].rxd
,
1321 /* Recv desc is ready to be used by the device */
1322 rxd
->gen
= ring
->gen
;
1323 vmxnet3_cmd_ring_adv_next2fill(ring
);
1327 /* if needed, update the register */
1328 if (unlikely(rq
->shared
->updateRxProd
)) {
1329 VMXNET3_WRITE_BAR0_REG(adapter
,
1330 rxprod_reg
[ring_idx
] + rq
->qid
* 8,
1334 vmxnet3_comp_ring_adv_next2proc(&rq
->comp_ring
);
1335 vmxnet3_getRxComp(rcd
,
1336 &rq
->comp_ring
.base
[rq
->comp_ring
.next2proc
].rcd
, &rxComp
);
1344 vmxnet3_rq_cleanup(struct vmxnet3_rx_queue
*rq
,
1345 struct vmxnet3_adapter
*adapter
)
1348 struct Vmxnet3_RxDesc
*rxd
;
1350 for (ring_idx
= 0; ring_idx
< 2; ring_idx
++) {
1351 for (i
= 0; i
< rq
->rx_ring
[ring_idx
].size
; i
++) {
1352 #ifdef __BIG_ENDIAN_BITFIELD
1353 struct Vmxnet3_RxDesc rxDesc
;
1355 vmxnet3_getRxDesc(rxd
,
1356 &rq
->rx_ring
[ring_idx
].base
[i
].rxd
, &rxDesc
);
1358 if (rxd
->btype
== VMXNET3_RXD_BTYPE_HEAD
&&
1359 rq
->buf_info
[ring_idx
][i
].skb
) {
1360 pci_unmap_single(adapter
->pdev
, rxd
->addr
,
1361 rxd
->len
, PCI_DMA_FROMDEVICE
);
1362 dev_kfree_skb(rq
->buf_info
[ring_idx
][i
].skb
);
1363 rq
->buf_info
[ring_idx
][i
].skb
= NULL
;
1364 } else if (rxd
->btype
== VMXNET3_RXD_BTYPE_BODY
&&
1365 rq
->buf_info
[ring_idx
][i
].page
) {
1366 pci_unmap_page(adapter
->pdev
, rxd
->addr
,
1367 rxd
->len
, PCI_DMA_FROMDEVICE
);
1368 put_page(rq
->buf_info
[ring_idx
][i
].page
);
1369 rq
->buf_info
[ring_idx
][i
].page
= NULL
;
1373 rq
->rx_ring
[ring_idx
].gen
= VMXNET3_INIT_GEN
;
1374 rq
->rx_ring
[ring_idx
].next2fill
=
1375 rq
->rx_ring
[ring_idx
].next2comp
= 0;
1378 rq
->comp_ring
.gen
= VMXNET3_INIT_GEN
;
1379 rq
->comp_ring
.next2proc
= 0;
1384 vmxnet3_rq_cleanup_all(struct vmxnet3_adapter
*adapter
)
1388 for (i
= 0; i
< adapter
->num_rx_queues
; i
++)
1389 vmxnet3_rq_cleanup(&adapter
->rx_queue
[i
], adapter
);
1393 void vmxnet3_rq_destroy(struct vmxnet3_rx_queue
*rq
,
1394 struct vmxnet3_adapter
*adapter
)
1399 /* all rx buffers must have already been freed */
1400 for (i
= 0; i
< 2; i
++) {
1401 if (rq
->buf_info
[i
]) {
1402 for (j
= 0; j
< rq
->rx_ring
[i
].size
; j
++)
1403 BUG_ON(rq
->buf_info
[i
][j
].page
!= NULL
);
1408 kfree(rq
->buf_info
[0]);
1410 for (i
= 0; i
< 2; i
++) {
1411 if (rq
->rx_ring
[i
].base
) {
1412 pci_free_consistent(adapter
->pdev
, rq
->rx_ring
[i
].size
1413 * sizeof(struct Vmxnet3_RxDesc
),
1414 rq
->rx_ring
[i
].base
,
1415 rq
->rx_ring
[i
].basePA
);
1416 rq
->rx_ring
[i
].base
= NULL
;
1418 rq
->buf_info
[i
] = NULL
;
1421 if (rq
->comp_ring
.base
) {
1422 pci_free_consistent(adapter
->pdev
, rq
->comp_ring
.size
*
1423 sizeof(struct Vmxnet3_RxCompDesc
),
1424 rq
->comp_ring
.base
, rq
->comp_ring
.basePA
);
1425 rq
->comp_ring
.base
= NULL
;
1431 vmxnet3_rq_init(struct vmxnet3_rx_queue
*rq
,
1432 struct vmxnet3_adapter
*adapter
)
1436 /* initialize buf_info */
1437 for (i
= 0; i
< rq
->rx_ring
[0].size
; i
++) {
1439 /* 1st buf for a pkt is skbuff */
1440 if (i
% adapter
->rx_buf_per_pkt
== 0) {
1441 rq
->buf_info
[0][i
].buf_type
= VMXNET3_RX_BUF_SKB
;
1442 rq
->buf_info
[0][i
].len
= adapter
->skb_buf_size
;
1443 } else { /* subsequent bufs for a pkt is frag */
1444 rq
->buf_info
[0][i
].buf_type
= VMXNET3_RX_BUF_PAGE
;
1445 rq
->buf_info
[0][i
].len
= PAGE_SIZE
;
1448 for (i
= 0; i
< rq
->rx_ring
[1].size
; i
++) {
1449 rq
->buf_info
[1][i
].buf_type
= VMXNET3_RX_BUF_PAGE
;
1450 rq
->buf_info
[1][i
].len
= PAGE_SIZE
;
1453 /* reset internal state and allocate buffers for both rings */
1454 for (i
= 0; i
< 2; i
++) {
1455 rq
->rx_ring
[i
].next2fill
= rq
->rx_ring
[i
].next2comp
= 0;
1457 memset(rq
->rx_ring
[i
].base
, 0, rq
->rx_ring
[i
].size
*
1458 sizeof(struct Vmxnet3_RxDesc
));
1459 rq
->rx_ring
[i
].gen
= VMXNET3_INIT_GEN
;
1461 if (vmxnet3_rq_alloc_rx_buf(rq
, 0, rq
->rx_ring
[0].size
- 1,
1463 /* at least has 1 rx buffer for the 1st ring */
1466 vmxnet3_rq_alloc_rx_buf(rq
, 1, rq
->rx_ring
[1].size
- 1, adapter
);
1468 /* reset the comp ring */
1469 rq
->comp_ring
.next2proc
= 0;
1470 memset(rq
->comp_ring
.base
, 0, rq
->comp_ring
.size
*
1471 sizeof(struct Vmxnet3_RxCompDesc
));
1472 rq
->comp_ring
.gen
= VMXNET3_INIT_GEN
;
1475 rq
->rx_ctx
.skb
= NULL
;
1477 /* stats are not reset */
1483 vmxnet3_rq_init_all(struct vmxnet3_adapter
*adapter
)
1487 for (i
= 0; i
< adapter
->num_rx_queues
; i
++) {
1488 err
= vmxnet3_rq_init(&adapter
->rx_queue
[i
], adapter
);
1489 if (unlikely(err
)) {
1490 dev_err(&adapter
->netdev
->dev
, "%s: failed to "
1491 "initialize rx queue%i\n",
1492 adapter
->netdev
->name
, i
);
1502 vmxnet3_rq_create(struct vmxnet3_rx_queue
*rq
, struct vmxnet3_adapter
*adapter
)
1506 struct vmxnet3_rx_buf_info
*bi
;
1508 for (i
= 0; i
< 2; i
++) {
1510 sz
= rq
->rx_ring
[i
].size
* sizeof(struct Vmxnet3_RxDesc
);
1511 rq
->rx_ring
[i
].base
= pci_alloc_consistent(adapter
->pdev
, sz
,
1512 &rq
->rx_ring
[i
].basePA
);
1513 if (!rq
->rx_ring
[i
].base
) {
1514 printk(KERN_ERR
"%s: failed to allocate rx ring %d\n",
1515 adapter
->netdev
->name
, i
);
1520 sz
= rq
->comp_ring
.size
* sizeof(struct Vmxnet3_RxCompDesc
);
1521 rq
->comp_ring
.base
= pci_alloc_consistent(adapter
->pdev
, sz
,
1522 &rq
->comp_ring
.basePA
);
1523 if (!rq
->comp_ring
.base
) {
1524 printk(KERN_ERR
"%s: failed to allocate rx comp ring\n",
1525 adapter
->netdev
->name
);
1529 sz
= sizeof(struct vmxnet3_rx_buf_info
) * (rq
->rx_ring
[0].size
+
1530 rq
->rx_ring
[1].size
);
1531 bi
= kzalloc(sz
, GFP_KERNEL
);
1535 rq
->buf_info
[0] = bi
;
1536 rq
->buf_info
[1] = bi
+ rq
->rx_ring
[0].size
;
1541 vmxnet3_rq_destroy(rq
, adapter
);
1547 vmxnet3_rq_create_all(struct vmxnet3_adapter
*adapter
)
1551 for (i
= 0; i
< adapter
->num_rx_queues
; i
++) {
1552 err
= vmxnet3_rq_create(&adapter
->rx_queue
[i
], adapter
);
1553 if (unlikely(err
)) {
1554 dev_err(&adapter
->netdev
->dev
,
1555 "%s: failed to create rx queue%i\n",
1556 adapter
->netdev
->name
, i
);
1562 vmxnet3_rq_destroy_all(adapter
);
1567 /* Multiple queue aware polling function for tx and rx */
1570 vmxnet3_do_poll(struct vmxnet3_adapter
*adapter
, int budget
)
1572 int rcd_done
= 0, i
;
1573 if (unlikely(adapter
->shared
->ecr
))
1574 vmxnet3_process_events(adapter
);
1575 for (i
= 0; i
< adapter
->num_tx_queues
; i
++)
1576 vmxnet3_tq_tx_complete(&adapter
->tx_queue
[i
], adapter
);
1578 for (i
= 0; i
< adapter
->num_rx_queues
; i
++)
1579 rcd_done
+= vmxnet3_rq_rx_complete(&adapter
->rx_queue
[i
],
1586 vmxnet3_poll(struct napi_struct
*napi
, int budget
)
1588 struct vmxnet3_rx_queue
*rx_queue
= container_of(napi
,
1589 struct vmxnet3_rx_queue
, napi
);
1592 rxd_done
= vmxnet3_do_poll(rx_queue
->adapter
, budget
);
1594 if (rxd_done
< budget
) {
1595 napi_complete(napi
);
1596 vmxnet3_enable_all_intrs(rx_queue
->adapter
);
1602 * NAPI polling function for MSI-X mode with multiple Rx queues
1603 * Returns the # of the NAPI credit consumed (# of rx descriptors processed)
1607 vmxnet3_poll_rx_only(struct napi_struct
*napi
, int budget
)
1609 struct vmxnet3_rx_queue
*rq
= container_of(napi
,
1610 struct vmxnet3_rx_queue
, napi
);
1611 struct vmxnet3_adapter
*adapter
= rq
->adapter
;
1614 /* When sharing interrupt with corresponding tx queue, process
1615 * tx completions in that queue as well
1617 if (adapter
->share_intr
== VMXNET3_INTR_BUDDYSHARE
) {
1618 struct vmxnet3_tx_queue
*tq
=
1619 &adapter
->tx_queue
[rq
- adapter
->rx_queue
];
1620 vmxnet3_tq_tx_complete(tq
, adapter
);
1623 rxd_done
= vmxnet3_rq_rx_complete(rq
, adapter
, budget
);
1625 if (rxd_done
< budget
) {
1626 napi_complete(napi
);
1627 vmxnet3_enable_intr(adapter
, rq
->comp_ring
.intr_idx
);
1633 #ifdef CONFIG_PCI_MSI
1636 * Handle completion interrupts on tx queues
1637 * Returns whether or not the intr is handled
1641 vmxnet3_msix_tx(int irq
, void *data
)
1643 struct vmxnet3_tx_queue
*tq
= data
;
1644 struct vmxnet3_adapter
*adapter
= tq
->adapter
;
1646 if (adapter
->intr
.mask_mode
== VMXNET3_IMM_ACTIVE
)
1647 vmxnet3_disable_intr(adapter
, tq
->comp_ring
.intr_idx
);
1649 /* Handle the case where only one irq is allocate for all tx queues */
1650 if (adapter
->share_intr
== VMXNET3_INTR_TXSHARE
) {
1652 for (i
= 0; i
< adapter
->num_tx_queues
; i
++) {
1653 struct vmxnet3_tx_queue
*txq
= &adapter
->tx_queue
[i
];
1654 vmxnet3_tq_tx_complete(txq
, adapter
);
1657 vmxnet3_tq_tx_complete(tq
, adapter
);
1659 vmxnet3_enable_intr(adapter
, tq
->comp_ring
.intr_idx
);
1666 * Handle completion interrupts on rx queues. Returns whether or not the
1671 vmxnet3_msix_rx(int irq
, void *data
)
1673 struct vmxnet3_rx_queue
*rq
= data
;
1674 struct vmxnet3_adapter
*adapter
= rq
->adapter
;
1676 /* disable intr if needed */
1677 if (adapter
->intr
.mask_mode
== VMXNET3_IMM_ACTIVE
)
1678 vmxnet3_disable_intr(adapter
, rq
->comp_ring
.intr_idx
);
1679 napi_schedule(&rq
->napi
);
1685 *----------------------------------------------------------------------------
1687 * vmxnet3_msix_event --
1689 * vmxnet3 msix event intr handler
1692 * whether or not the intr is handled
1694 *----------------------------------------------------------------------------
1698 vmxnet3_msix_event(int irq
, void *data
)
1700 struct net_device
*dev
= data
;
1701 struct vmxnet3_adapter
*adapter
= netdev_priv(dev
);
1703 /* disable intr if needed */
1704 if (adapter
->intr
.mask_mode
== VMXNET3_IMM_ACTIVE
)
1705 vmxnet3_disable_intr(adapter
, adapter
->intr
.event_intr_idx
);
1707 if (adapter
->shared
->ecr
)
1708 vmxnet3_process_events(adapter
);
1710 vmxnet3_enable_intr(adapter
, adapter
->intr
.event_intr_idx
);
1715 #endif /* CONFIG_PCI_MSI */
1718 /* Interrupt handler for vmxnet3 */
1720 vmxnet3_intr(int irq
, void *dev_id
)
1722 struct net_device
*dev
= dev_id
;
1723 struct vmxnet3_adapter
*adapter
= netdev_priv(dev
);
1725 if (adapter
->intr
.type
== VMXNET3_IT_INTX
) {
1726 u32 icr
= VMXNET3_READ_BAR1_REG(adapter
, VMXNET3_REG_ICR
);
1727 if (unlikely(icr
== 0))
1733 /* disable intr if needed */
1734 if (adapter
->intr
.mask_mode
== VMXNET3_IMM_ACTIVE
)
1735 vmxnet3_disable_all_intrs(adapter
);
1737 napi_schedule(&adapter
->rx_queue
[0].napi
);
1742 #ifdef CONFIG_NET_POLL_CONTROLLER
1744 /* netpoll callback. */
1746 vmxnet3_netpoll(struct net_device
*netdev
)
1748 struct vmxnet3_adapter
*adapter
= netdev_priv(netdev
);
1750 if (adapter
->intr
.mask_mode
== VMXNET3_IMM_ACTIVE
)
1751 vmxnet3_disable_all_intrs(adapter
);
1753 vmxnet3_do_poll(adapter
, adapter
->rx_queue
[0].rx_ring
[0].size
);
1754 vmxnet3_enable_all_intrs(adapter
);
1757 #endif /* CONFIG_NET_POLL_CONTROLLER */
1760 vmxnet3_request_irqs(struct vmxnet3_adapter
*adapter
)
1762 struct vmxnet3_intr
*intr
= &adapter
->intr
;
1766 #ifdef CONFIG_PCI_MSI
1767 if (adapter
->intr
.type
== VMXNET3_IT_MSIX
) {
1768 for (i
= 0; i
< adapter
->num_tx_queues
; i
++) {
1769 if (adapter
->share_intr
!= VMXNET3_INTR_BUDDYSHARE
) {
1770 sprintf(adapter
->tx_queue
[i
].name
, "%s-tx-%d",
1771 adapter
->netdev
->name
, vector
);
1773 intr
->msix_entries
[vector
].vector
,
1775 adapter
->tx_queue
[i
].name
,
1776 &adapter
->tx_queue
[i
]);
1778 sprintf(adapter
->tx_queue
[i
].name
, "%s-rxtx-%d",
1779 adapter
->netdev
->name
, vector
);
1782 dev_err(&adapter
->netdev
->dev
,
1783 "Failed to request irq for MSIX, %s, "
1785 adapter
->tx_queue
[i
].name
, err
);
1789 /* Handle the case where only 1 MSIx was allocated for
1791 if (adapter
->share_intr
== VMXNET3_INTR_TXSHARE
) {
1792 for (; i
< adapter
->num_tx_queues
; i
++)
1793 adapter
->tx_queue
[i
].comp_ring
.intr_idx
1798 adapter
->tx_queue
[i
].comp_ring
.intr_idx
1802 if (adapter
->share_intr
== VMXNET3_INTR_BUDDYSHARE
)
1805 for (i
= 0; i
< adapter
->num_rx_queues
; i
++) {
1806 if (adapter
->share_intr
!= VMXNET3_INTR_BUDDYSHARE
)
1807 sprintf(adapter
->rx_queue
[i
].name
, "%s-rx-%d",
1808 adapter
->netdev
->name
, vector
);
1810 sprintf(adapter
->rx_queue
[i
].name
, "%s-rxtx-%d",
1811 adapter
->netdev
->name
, vector
);
1812 err
= request_irq(intr
->msix_entries
[vector
].vector
,
1814 adapter
->rx_queue
[i
].name
,
1815 &(adapter
->rx_queue
[i
]));
1817 printk(KERN_ERR
"Failed to request irq for MSIX"
1819 adapter
->rx_queue
[i
].name
, err
);
1823 adapter
->rx_queue
[i
].comp_ring
.intr_idx
= vector
++;
1826 sprintf(intr
->event_msi_vector_name
, "%s-event-%d",
1827 adapter
->netdev
->name
, vector
);
1828 err
= request_irq(intr
->msix_entries
[vector
].vector
,
1829 vmxnet3_msix_event
, 0,
1830 intr
->event_msi_vector_name
, adapter
->netdev
);
1831 intr
->event_intr_idx
= vector
;
1833 } else if (intr
->type
== VMXNET3_IT_MSI
) {
1834 adapter
->num_rx_queues
= 1;
1835 err
= request_irq(adapter
->pdev
->irq
, vmxnet3_intr
, 0,
1836 adapter
->netdev
->name
, adapter
->netdev
);
1839 adapter
->num_rx_queues
= 1;
1840 err
= request_irq(adapter
->pdev
->irq
, vmxnet3_intr
,
1841 IRQF_SHARED
, adapter
->netdev
->name
,
1843 #ifdef CONFIG_PCI_MSI
1846 intr
->num_intrs
= vector
+ 1;
1848 printk(KERN_ERR
"Failed to request irq %s (intr type:%d), error"
1849 ":%d\n", adapter
->netdev
->name
, intr
->type
, err
);
1851 /* Number of rx queues will not change after this */
1852 for (i
= 0; i
< adapter
->num_rx_queues
; i
++) {
1853 struct vmxnet3_rx_queue
*rq
= &adapter
->rx_queue
[i
];
1855 rq
->qid2
= i
+ adapter
->num_rx_queues
;
1860 /* init our intr settings */
1861 for (i
= 0; i
< intr
->num_intrs
; i
++)
1862 intr
->mod_levels
[i
] = UPT1_IML_ADAPTIVE
;
1863 if (adapter
->intr
.type
!= VMXNET3_IT_MSIX
) {
1864 adapter
->intr
.event_intr_idx
= 0;
1865 for (i
= 0; i
< adapter
->num_tx_queues
; i
++)
1866 adapter
->tx_queue
[i
].comp_ring
.intr_idx
= 0;
1867 adapter
->rx_queue
[0].comp_ring
.intr_idx
= 0;
1870 printk(KERN_INFO
"%s: intr type %u, mode %u, %u vectors "
1871 "allocated\n", adapter
->netdev
->name
, intr
->type
,
1872 intr
->mask_mode
, intr
->num_intrs
);
1880 vmxnet3_free_irqs(struct vmxnet3_adapter
*adapter
)
1882 struct vmxnet3_intr
*intr
= &adapter
->intr
;
1883 BUG_ON(intr
->type
== VMXNET3_IT_AUTO
|| intr
->num_intrs
<= 0);
1885 switch (intr
->type
) {
1886 #ifdef CONFIG_PCI_MSI
1887 case VMXNET3_IT_MSIX
:
1891 if (adapter
->share_intr
!= VMXNET3_INTR_BUDDYSHARE
) {
1892 for (i
= 0; i
< adapter
->num_tx_queues
; i
++) {
1893 free_irq(intr
->msix_entries
[vector
++].vector
,
1894 &(adapter
->tx_queue
[i
]));
1895 if (adapter
->share_intr
== VMXNET3_INTR_TXSHARE
)
1900 for (i
= 0; i
< adapter
->num_rx_queues
; i
++) {
1901 free_irq(intr
->msix_entries
[vector
++].vector
,
1902 &(adapter
->rx_queue
[i
]));
1905 free_irq(intr
->msix_entries
[vector
].vector
,
1907 BUG_ON(vector
>= intr
->num_intrs
);
1911 case VMXNET3_IT_MSI
:
1912 free_irq(adapter
->pdev
->irq
, adapter
->netdev
);
1914 case VMXNET3_IT_INTX
:
1915 free_irq(adapter
->pdev
->irq
, adapter
->netdev
);
1924 vmxnet3_restore_vlan(struct vmxnet3_adapter
*adapter
)
1926 u32
*vfTable
= adapter
->shared
->devRead
.rxFilterConf
.vfTable
;
1929 /* allow untagged pkts */
1930 VMXNET3_SET_VFTABLE_ENTRY(vfTable
, 0);
1932 for_each_set_bit(vid
, adapter
->active_vlans
, VLAN_N_VID
)
1933 VMXNET3_SET_VFTABLE_ENTRY(vfTable
, vid
);
1938 vmxnet3_vlan_rx_add_vid(struct net_device
*netdev
, u16 vid
)
1940 struct vmxnet3_adapter
*adapter
= netdev_priv(netdev
);
1942 if (!(netdev
->flags
& IFF_PROMISC
)) {
1943 u32
*vfTable
= adapter
->shared
->devRead
.rxFilterConf
.vfTable
;
1944 unsigned long flags
;
1946 VMXNET3_SET_VFTABLE_ENTRY(vfTable
, vid
);
1947 spin_lock_irqsave(&adapter
->cmd_lock
, flags
);
1948 VMXNET3_WRITE_BAR1_REG(adapter
, VMXNET3_REG_CMD
,
1949 VMXNET3_CMD_UPDATE_VLAN_FILTERS
);
1950 spin_unlock_irqrestore(&adapter
->cmd_lock
, flags
);
1953 set_bit(vid
, adapter
->active_vlans
);
1960 vmxnet3_vlan_rx_kill_vid(struct net_device
*netdev
, u16 vid
)
1962 struct vmxnet3_adapter
*adapter
= netdev_priv(netdev
);
1964 if (!(netdev
->flags
& IFF_PROMISC
)) {
1965 u32
*vfTable
= adapter
->shared
->devRead
.rxFilterConf
.vfTable
;
1966 unsigned long flags
;
1968 VMXNET3_CLEAR_VFTABLE_ENTRY(vfTable
, vid
);
1969 spin_lock_irqsave(&adapter
->cmd_lock
, flags
);
1970 VMXNET3_WRITE_BAR1_REG(adapter
, VMXNET3_REG_CMD
,
1971 VMXNET3_CMD_UPDATE_VLAN_FILTERS
);
1972 spin_unlock_irqrestore(&adapter
->cmd_lock
, flags
);
1975 clear_bit(vid
, adapter
->active_vlans
);
1982 vmxnet3_copy_mc(struct net_device
*netdev
)
1985 u32 sz
= netdev_mc_count(netdev
) * ETH_ALEN
;
1987 /* struct Vmxnet3_RxFilterConf.mfTableLen is u16. */
1989 /* We may be called with BH disabled */
1990 buf
= kmalloc(sz
, GFP_ATOMIC
);
1992 struct netdev_hw_addr
*ha
;
1995 netdev_for_each_mc_addr(ha
, netdev
)
1996 memcpy(buf
+ i
++ * ETH_ALEN
, ha
->addr
,
2005 vmxnet3_set_mc(struct net_device
*netdev
)
2007 struct vmxnet3_adapter
*adapter
= netdev_priv(netdev
);
2008 unsigned long flags
;
2009 struct Vmxnet3_RxFilterConf
*rxConf
=
2010 &adapter
->shared
->devRead
.rxFilterConf
;
2011 u8
*new_table
= NULL
;
2012 u32 new_mode
= VMXNET3_RXM_UCAST
;
2014 if (netdev
->flags
& IFF_PROMISC
) {
2015 u32
*vfTable
= adapter
->shared
->devRead
.rxFilterConf
.vfTable
;
2016 memset(vfTable
, 0, VMXNET3_VFT_SIZE
* sizeof(*vfTable
));
2018 new_mode
|= VMXNET3_RXM_PROMISC
;
2020 vmxnet3_restore_vlan(adapter
);
2023 if (netdev
->flags
& IFF_BROADCAST
)
2024 new_mode
|= VMXNET3_RXM_BCAST
;
2026 if (netdev
->flags
& IFF_ALLMULTI
)
2027 new_mode
|= VMXNET3_RXM_ALL_MULTI
;
2029 if (!netdev_mc_empty(netdev
)) {
2030 new_table
= vmxnet3_copy_mc(netdev
);
2032 new_mode
|= VMXNET3_RXM_MCAST
;
2033 rxConf
->mfTableLen
= cpu_to_le16(
2034 netdev_mc_count(netdev
) * ETH_ALEN
);
2035 rxConf
->mfTablePA
= cpu_to_le64(virt_to_phys(
2038 printk(KERN_INFO
"%s: failed to copy mcast list"
2039 ", setting ALL_MULTI\n", netdev
->name
);
2040 new_mode
|= VMXNET3_RXM_ALL_MULTI
;
2045 if (!(new_mode
& VMXNET3_RXM_MCAST
)) {
2046 rxConf
->mfTableLen
= 0;
2047 rxConf
->mfTablePA
= 0;
2050 spin_lock_irqsave(&adapter
->cmd_lock
, flags
);
2051 if (new_mode
!= rxConf
->rxMode
) {
2052 rxConf
->rxMode
= cpu_to_le32(new_mode
);
2053 VMXNET3_WRITE_BAR1_REG(adapter
, VMXNET3_REG_CMD
,
2054 VMXNET3_CMD_UPDATE_RX_MODE
);
2055 VMXNET3_WRITE_BAR1_REG(adapter
, VMXNET3_REG_CMD
,
2056 VMXNET3_CMD_UPDATE_VLAN_FILTERS
);
2059 VMXNET3_WRITE_BAR1_REG(adapter
, VMXNET3_REG_CMD
,
2060 VMXNET3_CMD_UPDATE_MAC_FILTERS
);
2061 spin_unlock_irqrestore(&adapter
->cmd_lock
, flags
);
2067 vmxnet3_rq_destroy_all(struct vmxnet3_adapter
*adapter
)
2071 for (i
= 0; i
< adapter
->num_rx_queues
; i
++)
2072 vmxnet3_rq_destroy(&adapter
->rx_queue
[i
], adapter
);
2077 * Set up driver_shared based on settings in adapter.
2081 vmxnet3_setup_driver_shared(struct vmxnet3_adapter
*adapter
)
2083 struct Vmxnet3_DriverShared
*shared
= adapter
->shared
;
2084 struct Vmxnet3_DSDevRead
*devRead
= &shared
->devRead
;
2085 struct Vmxnet3_TxQueueConf
*tqc
;
2086 struct Vmxnet3_RxQueueConf
*rqc
;
2089 memset(shared
, 0, sizeof(*shared
));
2091 /* driver settings */
2092 shared
->magic
= cpu_to_le32(VMXNET3_REV1_MAGIC
);
2093 devRead
->misc
.driverInfo
.version
= cpu_to_le32(
2094 VMXNET3_DRIVER_VERSION_NUM
);
2095 devRead
->misc
.driverInfo
.gos
.gosBits
= (sizeof(void *) == 4 ?
2096 VMXNET3_GOS_BITS_32
: VMXNET3_GOS_BITS_64
);
2097 devRead
->misc
.driverInfo
.gos
.gosType
= VMXNET3_GOS_TYPE_LINUX
;
2098 *((u32
*)&devRead
->misc
.driverInfo
.gos
) = cpu_to_le32(
2099 *((u32
*)&devRead
->misc
.driverInfo
.gos
));
2100 devRead
->misc
.driverInfo
.vmxnet3RevSpt
= cpu_to_le32(1);
2101 devRead
->misc
.driverInfo
.uptVerSpt
= cpu_to_le32(1);
2103 devRead
->misc
.ddPA
= cpu_to_le64(virt_to_phys(adapter
));
2104 devRead
->misc
.ddLen
= cpu_to_le32(sizeof(struct vmxnet3_adapter
));
2106 /* set up feature flags */
2107 if (adapter
->netdev
->features
& NETIF_F_RXCSUM
)
2108 devRead
->misc
.uptFeatures
|= UPT1_F_RXCSUM
;
2110 if (adapter
->netdev
->features
& NETIF_F_LRO
) {
2111 devRead
->misc
.uptFeatures
|= UPT1_F_LRO
;
2112 devRead
->misc
.maxNumRxSG
= cpu_to_le16(1 + MAX_SKB_FRAGS
);
2114 if (adapter
->netdev
->features
& NETIF_F_HW_VLAN_RX
)
2115 devRead
->misc
.uptFeatures
|= UPT1_F_RXVLAN
;
2117 devRead
->misc
.mtu
= cpu_to_le32(adapter
->netdev
->mtu
);
2118 devRead
->misc
.queueDescPA
= cpu_to_le64(adapter
->queue_desc_pa
);
2119 devRead
->misc
.queueDescLen
= cpu_to_le32(
2120 adapter
->num_tx_queues
* sizeof(struct Vmxnet3_TxQueueDesc
) +
2121 adapter
->num_rx_queues
* sizeof(struct Vmxnet3_RxQueueDesc
));
2123 /* tx queue settings */
2124 devRead
->misc
.numTxQueues
= adapter
->num_tx_queues
;
2125 for (i
= 0; i
< adapter
->num_tx_queues
; i
++) {
2126 struct vmxnet3_tx_queue
*tq
= &adapter
->tx_queue
[i
];
2127 BUG_ON(adapter
->tx_queue
[i
].tx_ring
.base
== NULL
);
2128 tqc
= &adapter
->tqd_start
[i
].conf
;
2129 tqc
->txRingBasePA
= cpu_to_le64(tq
->tx_ring
.basePA
);
2130 tqc
->dataRingBasePA
= cpu_to_le64(tq
->data_ring
.basePA
);
2131 tqc
->compRingBasePA
= cpu_to_le64(tq
->comp_ring
.basePA
);
2132 tqc
->ddPA
= cpu_to_le64(virt_to_phys(tq
->buf_info
));
2133 tqc
->txRingSize
= cpu_to_le32(tq
->tx_ring
.size
);
2134 tqc
->dataRingSize
= cpu_to_le32(tq
->data_ring
.size
);
2135 tqc
->compRingSize
= cpu_to_le32(tq
->comp_ring
.size
);
2136 tqc
->ddLen
= cpu_to_le32(
2137 sizeof(struct vmxnet3_tx_buf_info
) *
2139 tqc
->intrIdx
= tq
->comp_ring
.intr_idx
;
2142 /* rx queue settings */
2143 devRead
->misc
.numRxQueues
= adapter
->num_rx_queues
;
2144 for (i
= 0; i
< adapter
->num_rx_queues
; i
++) {
2145 struct vmxnet3_rx_queue
*rq
= &adapter
->rx_queue
[i
];
2146 rqc
= &adapter
->rqd_start
[i
].conf
;
2147 rqc
->rxRingBasePA
[0] = cpu_to_le64(rq
->rx_ring
[0].basePA
);
2148 rqc
->rxRingBasePA
[1] = cpu_to_le64(rq
->rx_ring
[1].basePA
);
2149 rqc
->compRingBasePA
= cpu_to_le64(rq
->comp_ring
.basePA
);
2150 rqc
->ddPA
= cpu_to_le64(virt_to_phys(
2152 rqc
->rxRingSize
[0] = cpu_to_le32(rq
->rx_ring
[0].size
);
2153 rqc
->rxRingSize
[1] = cpu_to_le32(rq
->rx_ring
[1].size
);
2154 rqc
->compRingSize
= cpu_to_le32(rq
->comp_ring
.size
);
2155 rqc
->ddLen
= cpu_to_le32(
2156 sizeof(struct vmxnet3_rx_buf_info
) *
2157 (rqc
->rxRingSize
[0] +
2158 rqc
->rxRingSize
[1]));
2159 rqc
->intrIdx
= rq
->comp_ring
.intr_idx
;
2163 memset(adapter
->rss_conf
, 0, sizeof(*adapter
->rss_conf
));
2166 struct UPT1_RSSConf
*rssConf
= adapter
->rss_conf
;
2167 devRead
->misc
.uptFeatures
|= UPT1_F_RSS
;
2168 devRead
->misc
.numRxQueues
= adapter
->num_rx_queues
;
2169 rssConf
->hashType
= UPT1_RSS_HASH_TYPE_TCP_IPV4
|
2170 UPT1_RSS_HASH_TYPE_IPV4
|
2171 UPT1_RSS_HASH_TYPE_TCP_IPV6
|
2172 UPT1_RSS_HASH_TYPE_IPV6
;
2173 rssConf
->hashFunc
= UPT1_RSS_HASH_FUNC_TOEPLITZ
;
2174 rssConf
->hashKeySize
= UPT1_RSS_MAX_KEY_SIZE
;
2175 rssConf
->indTableSize
= VMXNET3_RSS_IND_TABLE_SIZE
;
2176 get_random_bytes(&rssConf
->hashKey
[0], rssConf
->hashKeySize
);
2177 for (i
= 0; i
< rssConf
->indTableSize
; i
++)
2178 rssConf
->indTable
[i
] = ethtool_rxfh_indir_default(
2179 i
, adapter
->num_rx_queues
);
2181 devRead
->rssConfDesc
.confVer
= 1;
2182 devRead
->rssConfDesc
.confLen
= sizeof(*rssConf
);
2183 devRead
->rssConfDesc
.confPA
= virt_to_phys(rssConf
);
2186 #endif /* VMXNET3_RSS */
2189 devRead
->intrConf
.autoMask
= adapter
->intr
.mask_mode
==
2191 devRead
->intrConf
.numIntrs
= adapter
->intr
.num_intrs
;
2192 for (i
= 0; i
< adapter
->intr
.num_intrs
; i
++)
2193 devRead
->intrConf
.modLevels
[i
] = adapter
->intr
.mod_levels
[i
];
2195 devRead
->intrConf
.eventIntrIdx
= adapter
->intr
.event_intr_idx
;
2196 devRead
->intrConf
.intrCtrl
|= cpu_to_le32(VMXNET3_IC_DISABLE_ALL
);
2198 /* rx filter settings */
2199 devRead
->rxFilterConf
.rxMode
= 0;
2200 vmxnet3_restore_vlan(adapter
);
2201 vmxnet3_write_mac_addr(adapter
, adapter
->netdev
->dev_addr
);
2203 /* the rest are already zeroed */
2208 vmxnet3_activate_dev(struct vmxnet3_adapter
*adapter
)
2212 unsigned long flags
;
2214 netdev_dbg(adapter
->netdev
, "%s: skb_buf_size %d, rx_buf_per_pkt %d,"
2215 " ring sizes %u %u %u\n", adapter
->netdev
->name
,
2216 adapter
->skb_buf_size
, adapter
->rx_buf_per_pkt
,
2217 adapter
->tx_queue
[0].tx_ring
.size
,
2218 adapter
->rx_queue
[0].rx_ring
[0].size
,
2219 adapter
->rx_queue
[0].rx_ring
[1].size
);
2221 vmxnet3_tq_init_all(adapter
);
2222 err
= vmxnet3_rq_init_all(adapter
);
2224 printk(KERN_ERR
"Failed to init rx queue for %s: error %d\n",
2225 adapter
->netdev
->name
, err
);
2229 err
= vmxnet3_request_irqs(adapter
);
2231 printk(KERN_ERR
"Failed to setup irq for %s: error %d\n",
2232 adapter
->netdev
->name
, err
);
2236 vmxnet3_setup_driver_shared(adapter
);
2238 VMXNET3_WRITE_BAR1_REG(adapter
, VMXNET3_REG_DSAL
, VMXNET3_GET_ADDR_LO(
2239 adapter
->shared_pa
));
2240 VMXNET3_WRITE_BAR1_REG(adapter
, VMXNET3_REG_DSAH
, VMXNET3_GET_ADDR_HI(
2241 adapter
->shared_pa
));
2242 spin_lock_irqsave(&adapter
->cmd_lock
, flags
);
2243 VMXNET3_WRITE_BAR1_REG(adapter
, VMXNET3_REG_CMD
,
2244 VMXNET3_CMD_ACTIVATE_DEV
);
2245 ret
= VMXNET3_READ_BAR1_REG(adapter
, VMXNET3_REG_CMD
);
2246 spin_unlock_irqrestore(&adapter
->cmd_lock
, flags
);
2249 printk(KERN_ERR
"Failed to activate dev %s: error %u\n",
2250 adapter
->netdev
->name
, ret
);
2255 for (i
= 0; i
< adapter
->num_rx_queues
; i
++) {
2256 VMXNET3_WRITE_BAR0_REG(adapter
,
2257 VMXNET3_REG_RXPROD
+ i
* VMXNET3_REG_ALIGN
,
2258 adapter
->rx_queue
[i
].rx_ring
[0].next2fill
);
2259 VMXNET3_WRITE_BAR0_REG(adapter
, (VMXNET3_REG_RXPROD2
+
2260 (i
* VMXNET3_REG_ALIGN
)),
2261 adapter
->rx_queue
[i
].rx_ring
[1].next2fill
);
2264 /* Apply the rx filter settins last. */
2265 vmxnet3_set_mc(adapter
->netdev
);
2268 * Check link state when first activating device. It will start the
2269 * tx queue if the link is up.
2271 vmxnet3_check_link(adapter
, true);
2272 for (i
= 0; i
< adapter
->num_rx_queues
; i
++)
2273 napi_enable(&adapter
->rx_queue
[i
].napi
);
2274 vmxnet3_enable_all_intrs(adapter
);
2275 clear_bit(VMXNET3_STATE_BIT_QUIESCED
, &adapter
->state
);
2279 VMXNET3_WRITE_BAR1_REG(adapter
, VMXNET3_REG_DSAL
, 0);
2280 VMXNET3_WRITE_BAR1_REG(adapter
, VMXNET3_REG_DSAH
, 0);
2281 vmxnet3_free_irqs(adapter
);
2284 /* free up buffers we allocated */
2285 vmxnet3_rq_cleanup_all(adapter
);
2291 vmxnet3_reset_dev(struct vmxnet3_adapter
*adapter
)
2293 unsigned long flags
;
2294 spin_lock_irqsave(&adapter
->cmd_lock
, flags
);
2295 VMXNET3_WRITE_BAR1_REG(adapter
, VMXNET3_REG_CMD
, VMXNET3_CMD_RESET_DEV
);
2296 spin_unlock_irqrestore(&adapter
->cmd_lock
, flags
);
2301 vmxnet3_quiesce_dev(struct vmxnet3_adapter
*adapter
)
2304 unsigned long flags
;
2305 if (test_and_set_bit(VMXNET3_STATE_BIT_QUIESCED
, &adapter
->state
))
2309 spin_lock_irqsave(&adapter
->cmd_lock
, flags
);
2310 VMXNET3_WRITE_BAR1_REG(adapter
, VMXNET3_REG_CMD
,
2311 VMXNET3_CMD_QUIESCE_DEV
);
2312 spin_unlock_irqrestore(&adapter
->cmd_lock
, flags
);
2313 vmxnet3_disable_all_intrs(adapter
);
2315 for (i
= 0; i
< adapter
->num_rx_queues
; i
++)
2316 napi_disable(&adapter
->rx_queue
[i
].napi
);
2317 netif_tx_disable(adapter
->netdev
);
2318 adapter
->link_speed
= 0;
2319 netif_carrier_off(adapter
->netdev
);
2321 vmxnet3_tq_cleanup_all(adapter
);
2322 vmxnet3_rq_cleanup_all(adapter
);
2323 vmxnet3_free_irqs(adapter
);
2329 vmxnet3_write_mac_addr(struct vmxnet3_adapter
*adapter
, u8
*mac
)
2334 VMXNET3_WRITE_BAR1_REG(adapter
, VMXNET3_REG_MACL
, tmp
);
2336 tmp
= (mac
[5] << 8) | mac
[4];
2337 VMXNET3_WRITE_BAR1_REG(adapter
, VMXNET3_REG_MACH
, tmp
);
2342 vmxnet3_set_mac_addr(struct net_device
*netdev
, void *p
)
2344 struct sockaddr
*addr
= p
;
2345 struct vmxnet3_adapter
*adapter
= netdev_priv(netdev
);
2347 memcpy(netdev
->dev_addr
, addr
->sa_data
, netdev
->addr_len
);
2348 vmxnet3_write_mac_addr(adapter
, addr
->sa_data
);
2354 /* ==================== initialization and cleanup routines ============ */
2357 vmxnet3_alloc_pci_resources(struct vmxnet3_adapter
*adapter
, bool *dma64
)
2360 unsigned long mmio_start
, mmio_len
;
2361 struct pci_dev
*pdev
= adapter
->pdev
;
2363 err
= pci_enable_device(pdev
);
2365 printk(KERN_ERR
"Failed to enable adapter %s: error %d\n",
2366 pci_name(pdev
), err
);
2370 if (pci_set_dma_mask(pdev
, DMA_BIT_MASK(64)) == 0) {
2371 if (pci_set_consistent_dma_mask(pdev
, DMA_BIT_MASK(64)) != 0) {
2372 printk(KERN_ERR
"pci_set_consistent_dma_mask failed "
2373 "for adapter %s\n", pci_name(pdev
));
2379 if (pci_set_dma_mask(pdev
, DMA_BIT_MASK(32)) != 0) {
2380 printk(KERN_ERR
"pci_set_dma_mask failed for adapter "
2381 "%s\n", pci_name(pdev
));
2388 err
= pci_request_selected_regions(pdev
, (1 << 2) - 1,
2389 vmxnet3_driver_name
);
2391 printk(KERN_ERR
"Failed to request region for adapter %s: "
2392 "error %d\n", pci_name(pdev
), err
);
2396 pci_set_master(pdev
);
2398 mmio_start
= pci_resource_start(pdev
, 0);
2399 mmio_len
= pci_resource_len(pdev
, 0);
2400 adapter
->hw_addr0
= ioremap(mmio_start
, mmio_len
);
2401 if (!adapter
->hw_addr0
) {
2402 printk(KERN_ERR
"Failed to map bar0 for adapter %s\n",
2408 mmio_start
= pci_resource_start(pdev
, 1);
2409 mmio_len
= pci_resource_len(pdev
, 1);
2410 adapter
->hw_addr1
= ioremap(mmio_start
, mmio_len
);
2411 if (!adapter
->hw_addr1
) {
2412 printk(KERN_ERR
"Failed to map bar1 for adapter %s\n",
2420 iounmap(adapter
->hw_addr0
);
2422 pci_release_selected_regions(pdev
, (1 << 2) - 1);
2424 pci_disable_device(pdev
);
2430 vmxnet3_free_pci_resources(struct vmxnet3_adapter
*adapter
)
2432 BUG_ON(!adapter
->pdev
);
2434 iounmap(adapter
->hw_addr0
);
2435 iounmap(adapter
->hw_addr1
);
2436 pci_release_selected_regions(adapter
->pdev
, (1 << 2) - 1);
2437 pci_disable_device(adapter
->pdev
);
2442 vmxnet3_adjust_rx_ring_size(struct vmxnet3_adapter
*adapter
)
2444 size_t sz
, i
, ring0_size
, ring1_size
, comp_size
;
2445 struct vmxnet3_rx_queue
*rq
= &adapter
->rx_queue
[0];
2448 if (adapter
->netdev
->mtu
<= VMXNET3_MAX_SKB_BUF_SIZE
-
2449 VMXNET3_MAX_ETH_HDR_SIZE
) {
2450 adapter
->skb_buf_size
= adapter
->netdev
->mtu
+
2451 VMXNET3_MAX_ETH_HDR_SIZE
;
2452 if (adapter
->skb_buf_size
< VMXNET3_MIN_T0_BUF_SIZE
)
2453 adapter
->skb_buf_size
= VMXNET3_MIN_T0_BUF_SIZE
;
2455 adapter
->rx_buf_per_pkt
= 1;
2457 adapter
->skb_buf_size
= VMXNET3_MAX_SKB_BUF_SIZE
;
2458 sz
= adapter
->netdev
->mtu
- VMXNET3_MAX_SKB_BUF_SIZE
+
2459 VMXNET3_MAX_ETH_HDR_SIZE
;
2460 adapter
->rx_buf_per_pkt
= 1 + (sz
+ PAGE_SIZE
- 1) / PAGE_SIZE
;
2464 * for simplicity, force the ring0 size to be a multiple of
2465 * rx_buf_per_pkt * VMXNET3_RING_SIZE_ALIGN
2467 sz
= adapter
->rx_buf_per_pkt
* VMXNET3_RING_SIZE_ALIGN
;
2468 ring0_size
= adapter
->rx_queue
[0].rx_ring
[0].size
;
2469 ring0_size
= (ring0_size
+ sz
- 1) / sz
* sz
;
2470 ring0_size
= min_t(u32
, ring0_size
, VMXNET3_RX_RING_MAX_SIZE
/
2472 ring1_size
= adapter
->rx_queue
[0].rx_ring
[1].size
;
2473 comp_size
= ring0_size
+ ring1_size
;
2475 for (i
= 0; i
< adapter
->num_rx_queues
; i
++) {
2476 rq
= &adapter
->rx_queue
[i
];
2477 rq
->rx_ring
[0].size
= ring0_size
;
2478 rq
->rx_ring
[1].size
= ring1_size
;
2479 rq
->comp_ring
.size
= comp_size
;
2485 vmxnet3_create_queues(struct vmxnet3_adapter
*adapter
, u32 tx_ring_size
,
2486 u32 rx_ring_size
, u32 rx_ring2_size
)
2490 for (i
= 0; i
< adapter
->num_tx_queues
; i
++) {
2491 struct vmxnet3_tx_queue
*tq
= &adapter
->tx_queue
[i
];
2492 tq
->tx_ring
.size
= tx_ring_size
;
2493 tq
->data_ring
.size
= tx_ring_size
;
2494 tq
->comp_ring
.size
= tx_ring_size
;
2495 tq
->shared
= &adapter
->tqd_start
[i
].ctrl
;
2497 tq
->adapter
= adapter
;
2499 err
= vmxnet3_tq_create(tq
, adapter
);
2501 * Too late to change num_tx_queues. We cannot do away with
2502 * lesser number of queues than what we asked for
2508 adapter
->rx_queue
[0].rx_ring
[0].size
= rx_ring_size
;
2509 adapter
->rx_queue
[0].rx_ring
[1].size
= rx_ring2_size
;
2510 vmxnet3_adjust_rx_ring_size(adapter
);
2511 for (i
= 0; i
< adapter
->num_rx_queues
; i
++) {
2512 struct vmxnet3_rx_queue
*rq
= &adapter
->rx_queue
[i
];
2513 /* qid and qid2 for rx queues will be assigned later when num
2514 * of rx queues is finalized after allocating intrs */
2515 rq
->shared
= &adapter
->rqd_start
[i
].ctrl
;
2516 rq
->adapter
= adapter
;
2517 err
= vmxnet3_rq_create(rq
, adapter
);
2520 printk(KERN_ERR
"Could not allocate any rx"
2521 "queues. Aborting.\n");
2524 printk(KERN_INFO
"Number of rx queues changed "
2526 adapter
->num_rx_queues
= i
;
2534 vmxnet3_tq_destroy_all(adapter
);
2539 vmxnet3_open(struct net_device
*netdev
)
2541 struct vmxnet3_adapter
*adapter
;
2544 adapter
= netdev_priv(netdev
);
2546 for (i
= 0; i
< adapter
->num_tx_queues
; i
++)
2547 spin_lock_init(&adapter
->tx_queue
[i
].tx_lock
);
2549 err
= vmxnet3_create_queues(adapter
, VMXNET3_DEF_TX_RING_SIZE
,
2550 VMXNET3_DEF_RX_RING_SIZE
,
2551 VMXNET3_DEF_RX_RING_SIZE
);
2555 err
= vmxnet3_activate_dev(adapter
);
2562 vmxnet3_rq_destroy_all(adapter
);
2563 vmxnet3_tq_destroy_all(adapter
);
2570 vmxnet3_close(struct net_device
*netdev
)
2572 struct vmxnet3_adapter
*adapter
= netdev_priv(netdev
);
2575 * Reset_work may be in the middle of resetting the device, wait for its
2578 while (test_and_set_bit(VMXNET3_STATE_BIT_RESETTING
, &adapter
->state
))
2581 vmxnet3_quiesce_dev(adapter
);
2583 vmxnet3_rq_destroy_all(adapter
);
2584 vmxnet3_tq_destroy_all(adapter
);
2586 clear_bit(VMXNET3_STATE_BIT_RESETTING
, &adapter
->state
);
2594 vmxnet3_force_close(struct vmxnet3_adapter
*adapter
)
2599 * we must clear VMXNET3_STATE_BIT_RESETTING, otherwise
2600 * vmxnet3_close() will deadlock.
2602 BUG_ON(test_bit(VMXNET3_STATE_BIT_RESETTING
, &adapter
->state
));
2604 /* we need to enable NAPI, otherwise dev_close will deadlock */
2605 for (i
= 0; i
< adapter
->num_rx_queues
; i
++)
2606 napi_enable(&adapter
->rx_queue
[i
].napi
);
2607 dev_close(adapter
->netdev
);
2612 vmxnet3_change_mtu(struct net_device
*netdev
, int new_mtu
)
2614 struct vmxnet3_adapter
*adapter
= netdev_priv(netdev
);
2617 if (new_mtu
< VMXNET3_MIN_MTU
|| new_mtu
> VMXNET3_MAX_MTU
)
2620 netdev
->mtu
= new_mtu
;
2623 * Reset_work may be in the middle of resetting the device, wait for its
2626 while (test_and_set_bit(VMXNET3_STATE_BIT_RESETTING
, &adapter
->state
))
2629 if (netif_running(netdev
)) {
2630 vmxnet3_quiesce_dev(adapter
);
2631 vmxnet3_reset_dev(adapter
);
2633 /* we need to re-create the rx queue based on the new mtu */
2634 vmxnet3_rq_destroy_all(adapter
);
2635 vmxnet3_adjust_rx_ring_size(adapter
);
2636 err
= vmxnet3_rq_create_all(adapter
);
2638 printk(KERN_ERR
"%s: failed to re-create rx queues,"
2639 " error %d. Closing it.\n", netdev
->name
, err
);
2643 err
= vmxnet3_activate_dev(adapter
);
2645 printk(KERN_ERR
"%s: failed to re-activate, error %d. "
2646 "Closing it\n", netdev
->name
, err
);
2652 clear_bit(VMXNET3_STATE_BIT_RESETTING
, &adapter
->state
);
2654 vmxnet3_force_close(adapter
);
2661 vmxnet3_declare_features(struct vmxnet3_adapter
*adapter
, bool dma64
)
2663 struct net_device
*netdev
= adapter
->netdev
;
2665 netdev
->hw_features
= NETIF_F_SG
| NETIF_F_RXCSUM
|
2666 NETIF_F_HW_CSUM
| NETIF_F_HW_VLAN_TX
|
2667 NETIF_F_HW_VLAN_RX
| NETIF_F_TSO
| NETIF_F_TSO6
|
2670 netdev
->hw_features
|= NETIF_F_HIGHDMA
;
2671 netdev
->vlan_features
= netdev
->hw_features
&
2672 ~(NETIF_F_HW_VLAN_TX
| NETIF_F_HW_VLAN_RX
);
2673 netdev
->features
= netdev
->hw_features
| NETIF_F_HW_VLAN_FILTER
;
2678 vmxnet3_read_mac_addr(struct vmxnet3_adapter
*adapter
, u8
*mac
)
2682 tmp
= VMXNET3_READ_BAR1_REG(adapter
, VMXNET3_REG_MACL
);
2685 tmp
= VMXNET3_READ_BAR1_REG(adapter
, VMXNET3_REG_MACH
);
2686 mac
[4] = tmp
& 0xff;
2687 mac
[5] = (tmp
>> 8) & 0xff;
2690 #ifdef CONFIG_PCI_MSI
2693 * Enable MSIx vectors.
2695 * 0 on successful enabling of required vectors,
2696 * VMXNET3_LINUX_MIN_MSIX_VECT when only minimum number of vectors required
2698 * number of vectors which can be enabled otherwise (this number is smaller
2699 * than VMXNET3_LINUX_MIN_MSIX_VECT)
2703 vmxnet3_acquire_msix_vectors(struct vmxnet3_adapter
*adapter
,
2706 int err
= 0, vector_threshold
;
2707 vector_threshold
= VMXNET3_LINUX_MIN_MSIX_VECT
;
2709 while (vectors
>= vector_threshold
) {
2710 err
= pci_enable_msix(adapter
->pdev
, adapter
->intr
.msix_entries
,
2713 adapter
->intr
.num_intrs
= vectors
;
2715 } else if (err
< 0) {
2716 dev_err(&adapter
->netdev
->dev
,
2717 "Failed to enable MSI-X, error: %d\n", err
);
2719 } else if (err
< vector_threshold
) {
2722 /* If fails to enable required number of MSI-x vectors
2723 * try enabling minimum number of vectors required.
2725 dev_err(&adapter
->netdev
->dev
,
2726 "Failed to enable %d MSI-X, trying %d instead\n",
2727 vectors
, vector_threshold
);
2728 vectors
= vector_threshold
;
2732 dev_info(&adapter
->pdev
->dev
,
2733 "Number of MSI-X interrupts which can be allocated "
2734 "is lower than min threshold required.\n");
2739 #endif /* CONFIG_PCI_MSI */
2742 vmxnet3_alloc_intr_resources(struct vmxnet3_adapter
*adapter
)
2745 unsigned long flags
;
2748 spin_lock_irqsave(&adapter
->cmd_lock
, flags
);
2749 VMXNET3_WRITE_BAR1_REG(adapter
, VMXNET3_REG_CMD
,
2750 VMXNET3_CMD_GET_CONF_INTR
);
2751 cfg
= VMXNET3_READ_BAR1_REG(adapter
, VMXNET3_REG_CMD
);
2752 spin_unlock_irqrestore(&adapter
->cmd_lock
, flags
);
2753 adapter
->intr
.type
= cfg
& 0x3;
2754 adapter
->intr
.mask_mode
= (cfg
>> 2) & 0x3;
2756 if (adapter
->intr
.type
== VMXNET3_IT_AUTO
) {
2757 adapter
->intr
.type
= VMXNET3_IT_MSIX
;
2760 #ifdef CONFIG_PCI_MSI
2761 if (adapter
->intr
.type
== VMXNET3_IT_MSIX
) {
2762 int vector
, err
= 0;
2764 adapter
->intr
.num_intrs
= (adapter
->share_intr
==
2765 VMXNET3_INTR_TXSHARE
) ? 1 :
2766 adapter
->num_tx_queues
;
2767 adapter
->intr
.num_intrs
+= (adapter
->share_intr
==
2768 VMXNET3_INTR_BUDDYSHARE
) ? 0 :
2769 adapter
->num_rx_queues
;
2770 adapter
->intr
.num_intrs
+= 1; /* for link event */
2772 adapter
->intr
.num_intrs
= (adapter
->intr
.num_intrs
>
2773 VMXNET3_LINUX_MIN_MSIX_VECT
2774 ? adapter
->intr
.num_intrs
:
2775 VMXNET3_LINUX_MIN_MSIX_VECT
);
2777 for (vector
= 0; vector
< adapter
->intr
.num_intrs
; vector
++)
2778 adapter
->intr
.msix_entries
[vector
].entry
= vector
;
2780 err
= vmxnet3_acquire_msix_vectors(adapter
,
2781 adapter
->intr
.num_intrs
);
2782 /* If we cannot allocate one MSIx vector per queue
2783 * then limit the number of rx queues to 1
2785 if (err
== VMXNET3_LINUX_MIN_MSIX_VECT
) {
2786 if (adapter
->share_intr
!= VMXNET3_INTR_BUDDYSHARE
2787 || adapter
->num_rx_queues
!= 1) {
2788 adapter
->share_intr
= VMXNET3_INTR_TXSHARE
;
2789 printk(KERN_ERR
"Number of rx queues : 1\n");
2790 adapter
->num_rx_queues
= 1;
2791 adapter
->intr
.num_intrs
=
2792 VMXNET3_LINUX_MIN_MSIX_VECT
;
2799 /* If we cannot allocate MSIx vectors use only one rx queue */
2800 dev_info(&adapter
->pdev
->dev
,
2801 "Failed to enable MSI-X, error %d. "
2802 "Limiting #rx queues to 1, try MSI.\n", err
);
2804 adapter
->intr
.type
= VMXNET3_IT_MSI
;
2807 if (adapter
->intr
.type
== VMXNET3_IT_MSI
) {
2809 err
= pci_enable_msi(adapter
->pdev
);
2811 adapter
->num_rx_queues
= 1;
2812 adapter
->intr
.num_intrs
= 1;
2816 #endif /* CONFIG_PCI_MSI */
2818 adapter
->num_rx_queues
= 1;
2819 printk(KERN_INFO
"Using INTx interrupt, #Rx queues: 1.\n");
2820 adapter
->intr
.type
= VMXNET3_IT_INTX
;
2822 /* INT-X related setting */
2823 adapter
->intr
.num_intrs
= 1;
2828 vmxnet3_free_intr_resources(struct vmxnet3_adapter
*adapter
)
2830 if (adapter
->intr
.type
== VMXNET3_IT_MSIX
)
2831 pci_disable_msix(adapter
->pdev
);
2832 else if (adapter
->intr
.type
== VMXNET3_IT_MSI
)
2833 pci_disable_msi(adapter
->pdev
);
2835 BUG_ON(adapter
->intr
.type
!= VMXNET3_IT_INTX
);
2840 vmxnet3_tx_timeout(struct net_device
*netdev
)
2842 struct vmxnet3_adapter
*adapter
= netdev_priv(netdev
);
2843 adapter
->tx_timeout_count
++;
2845 printk(KERN_ERR
"%s: tx hang\n", adapter
->netdev
->name
);
2846 schedule_work(&adapter
->work
);
2847 netif_wake_queue(adapter
->netdev
);
2852 vmxnet3_reset_work(struct work_struct
*data
)
2854 struct vmxnet3_adapter
*adapter
;
2856 adapter
= container_of(data
, struct vmxnet3_adapter
, work
);
2858 /* if another thread is resetting the device, no need to proceed */
2859 if (test_and_set_bit(VMXNET3_STATE_BIT_RESETTING
, &adapter
->state
))
2862 /* if the device is closed, we must leave it alone */
2864 if (netif_running(adapter
->netdev
)) {
2865 printk(KERN_INFO
"%s: resetting\n", adapter
->netdev
->name
);
2866 vmxnet3_quiesce_dev(adapter
);
2867 vmxnet3_reset_dev(adapter
);
2868 vmxnet3_activate_dev(adapter
);
2870 printk(KERN_INFO
"%s: already closed\n", adapter
->netdev
->name
);
2874 clear_bit(VMXNET3_STATE_BIT_RESETTING
, &adapter
->state
);
2879 vmxnet3_probe_device(struct pci_dev
*pdev
,
2880 const struct pci_device_id
*id
)
2882 static const struct net_device_ops vmxnet3_netdev_ops
= {
2883 .ndo_open
= vmxnet3_open
,
2884 .ndo_stop
= vmxnet3_close
,
2885 .ndo_start_xmit
= vmxnet3_xmit_frame
,
2886 .ndo_set_mac_address
= vmxnet3_set_mac_addr
,
2887 .ndo_change_mtu
= vmxnet3_change_mtu
,
2888 .ndo_set_features
= vmxnet3_set_features
,
2889 .ndo_get_stats64
= vmxnet3_get_stats64
,
2890 .ndo_tx_timeout
= vmxnet3_tx_timeout
,
2891 .ndo_set_rx_mode
= vmxnet3_set_mc
,
2892 .ndo_vlan_rx_add_vid
= vmxnet3_vlan_rx_add_vid
,
2893 .ndo_vlan_rx_kill_vid
= vmxnet3_vlan_rx_kill_vid
,
2894 #ifdef CONFIG_NET_POLL_CONTROLLER
2895 .ndo_poll_controller
= vmxnet3_netpoll
,
2899 bool dma64
= false; /* stupid gcc */
2901 struct net_device
*netdev
;
2902 struct vmxnet3_adapter
*adapter
;
2908 if (!pci_msi_enabled())
2913 num_rx_queues
= min(VMXNET3_DEVICE_MAX_RX_QUEUES
,
2914 (int)num_online_cpus());
2918 num_rx_queues
= rounddown_pow_of_two(num_rx_queues
);
2921 num_tx_queues
= min(VMXNET3_DEVICE_MAX_TX_QUEUES
,
2922 (int)num_online_cpus());
2926 num_tx_queues
= rounddown_pow_of_two(num_tx_queues
);
2927 netdev
= alloc_etherdev_mq(sizeof(struct vmxnet3_adapter
),
2928 max(num_tx_queues
, num_rx_queues
));
2929 printk(KERN_INFO
"# of Tx queues : %d, # of Rx queues : %d\n",
2930 num_tx_queues
, num_rx_queues
);
2935 pci_set_drvdata(pdev
, netdev
);
2936 adapter
= netdev_priv(netdev
);
2937 adapter
->netdev
= netdev
;
2938 adapter
->pdev
= pdev
;
2940 spin_lock_init(&adapter
->cmd_lock
);
2941 adapter
->shared
= pci_alloc_consistent(adapter
->pdev
,
2942 sizeof(struct Vmxnet3_DriverShared
),
2943 &adapter
->shared_pa
);
2944 if (!adapter
->shared
) {
2945 printk(KERN_ERR
"Failed to allocate memory for %s\n",
2948 goto err_alloc_shared
;
2951 adapter
->num_rx_queues
= num_rx_queues
;
2952 adapter
->num_tx_queues
= num_tx_queues
;
2954 size
= sizeof(struct Vmxnet3_TxQueueDesc
) * adapter
->num_tx_queues
;
2955 size
+= sizeof(struct Vmxnet3_RxQueueDesc
) * adapter
->num_rx_queues
;
2956 adapter
->tqd_start
= pci_alloc_consistent(adapter
->pdev
, size
,
2957 &adapter
->queue_desc_pa
);
2959 if (!adapter
->tqd_start
) {
2960 printk(KERN_ERR
"Failed to allocate memory for %s\n",
2963 goto err_alloc_queue_desc
;
2965 adapter
->rqd_start
= (struct Vmxnet3_RxQueueDesc
*)(adapter
->tqd_start
+
2966 adapter
->num_tx_queues
);
2968 adapter
->pm_conf
= kmalloc(sizeof(struct Vmxnet3_PMConf
), GFP_KERNEL
);
2969 if (adapter
->pm_conf
== NULL
) {
2976 adapter
->rss_conf
= kmalloc(sizeof(struct UPT1_RSSConf
), GFP_KERNEL
);
2977 if (adapter
->rss_conf
== NULL
) {
2981 #endif /* VMXNET3_RSS */
2983 err
= vmxnet3_alloc_pci_resources(adapter
, &dma64
);
2987 ver
= VMXNET3_READ_BAR1_REG(adapter
, VMXNET3_REG_VRRS
);
2989 VMXNET3_WRITE_BAR1_REG(adapter
, VMXNET3_REG_VRRS
, 1);
2991 printk(KERN_ERR
"Incompatible h/w version (0x%x) for adapter"
2992 " %s\n", ver
, pci_name(pdev
));
2997 ver
= VMXNET3_READ_BAR1_REG(adapter
, VMXNET3_REG_UVRS
);
2999 VMXNET3_WRITE_BAR1_REG(adapter
, VMXNET3_REG_UVRS
, 1);
3001 printk(KERN_ERR
"Incompatible upt version (0x%x) for "
3002 "adapter %s\n", ver
, pci_name(pdev
));
3007 SET_NETDEV_DEV(netdev
, &pdev
->dev
);
3008 vmxnet3_declare_features(adapter
, dma64
);
3010 adapter
->dev_number
= atomic_read(&devices_found
);
3012 adapter
->share_intr
= irq_share_mode
;
3013 if (adapter
->share_intr
== VMXNET3_INTR_BUDDYSHARE
&&
3014 adapter
->num_tx_queues
!= adapter
->num_rx_queues
)
3015 adapter
->share_intr
= VMXNET3_INTR_DONTSHARE
;
3017 vmxnet3_alloc_intr_resources(adapter
);
3020 if (adapter
->num_rx_queues
> 1 &&
3021 adapter
->intr
.type
== VMXNET3_IT_MSIX
) {
3022 adapter
->rss
= true;
3023 printk(KERN_INFO
"RSS is enabled.\n");
3025 adapter
->rss
= false;
3029 vmxnet3_read_mac_addr(adapter
, mac
);
3030 memcpy(netdev
->dev_addr
, mac
, netdev
->addr_len
);
3032 netdev
->netdev_ops
= &vmxnet3_netdev_ops
;
3033 vmxnet3_set_ethtool_ops(netdev
);
3034 netdev
->watchdog_timeo
= 5 * HZ
;
3036 INIT_WORK(&adapter
->work
, vmxnet3_reset_work
);
3037 set_bit(VMXNET3_STATE_BIT_QUIESCED
, &adapter
->state
);
3039 if (adapter
->intr
.type
== VMXNET3_IT_MSIX
) {
3041 for (i
= 0; i
< adapter
->num_rx_queues
; i
++) {
3042 netif_napi_add(adapter
->netdev
,
3043 &adapter
->rx_queue
[i
].napi
,
3044 vmxnet3_poll_rx_only
, 64);
3047 netif_napi_add(adapter
->netdev
, &adapter
->rx_queue
[0].napi
,
3051 netif_set_real_num_tx_queues(adapter
->netdev
, adapter
->num_tx_queues
);
3052 netif_set_real_num_rx_queues(adapter
->netdev
, adapter
->num_rx_queues
);
3054 err
= register_netdev(netdev
);
3057 printk(KERN_ERR
"Failed to register adapter %s\n",
3062 vmxnet3_check_link(adapter
, false);
3063 atomic_inc(&devices_found
);
3067 vmxnet3_free_intr_resources(adapter
);
3069 vmxnet3_free_pci_resources(adapter
);
3072 kfree(adapter
->rss_conf
);
3075 kfree(adapter
->pm_conf
);
3077 pci_free_consistent(adapter
->pdev
, size
, adapter
->tqd_start
,
3078 adapter
->queue_desc_pa
);
3079 err_alloc_queue_desc
:
3080 pci_free_consistent(adapter
->pdev
, sizeof(struct Vmxnet3_DriverShared
),
3081 adapter
->shared
, adapter
->shared_pa
);
3083 pci_set_drvdata(pdev
, NULL
);
3084 free_netdev(netdev
);
3090 vmxnet3_remove_device(struct pci_dev
*pdev
)
3092 struct net_device
*netdev
= pci_get_drvdata(pdev
);
3093 struct vmxnet3_adapter
*adapter
= netdev_priv(netdev
);
3099 num_rx_queues
= min(VMXNET3_DEVICE_MAX_RX_QUEUES
,
3100 (int)num_online_cpus());
3104 num_rx_queues
= rounddown_pow_of_two(num_rx_queues
);
3106 cancel_work_sync(&adapter
->work
);
3108 unregister_netdev(netdev
);
3110 vmxnet3_free_intr_resources(adapter
);
3111 vmxnet3_free_pci_resources(adapter
);
3113 kfree(adapter
->rss_conf
);
3115 kfree(adapter
->pm_conf
);
3117 size
= sizeof(struct Vmxnet3_TxQueueDesc
) * adapter
->num_tx_queues
;
3118 size
+= sizeof(struct Vmxnet3_RxQueueDesc
) * num_rx_queues
;
3119 pci_free_consistent(adapter
->pdev
, size
, adapter
->tqd_start
,
3120 adapter
->queue_desc_pa
);
3121 pci_free_consistent(adapter
->pdev
, sizeof(struct Vmxnet3_DriverShared
),
3122 adapter
->shared
, adapter
->shared_pa
);
3123 free_netdev(netdev
);
3130 vmxnet3_suspend(struct device
*device
)
3132 struct pci_dev
*pdev
= to_pci_dev(device
);
3133 struct net_device
*netdev
= pci_get_drvdata(pdev
);
3134 struct vmxnet3_adapter
*adapter
= netdev_priv(netdev
);
3135 struct Vmxnet3_PMConf
*pmConf
;
3136 struct ethhdr
*ehdr
;
3137 struct arphdr
*ahdr
;
3139 struct in_device
*in_dev
;
3140 struct in_ifaddr
*ifa
;
3141 unsigned long flags
;
3144 if (!netif_running(netdev
))
3147 for (i
= 0; i
< adapter
->num_rx_queues
; i
++)
3148 napi_disable(&adapter
->rx_queue
[i
].napi
);
3150 vmxnet3_disable_all_intrs(adapter
);
3151 vmxnet3_free_irqs(adapter
);
3152 vmxnet3_free_intr_resources(adapter
);
3154 netif_device_detach(netdev
);
3155 netif_tx_stop_all_queues(netdev
);
3157 /* Create wake-up filters. */
3158 pmConf
= adapter
->pm_conf
;
3159 memset(pmConf
, 0, sizeof(*pmConf
));
3161 if (adapter
->wol
& WAKE_UCAST
) {
3162 pmConf
->filters
[i
].patternSize
= ETH_ALEN
;
3163 pmConf
->filters
[i
].maskSize
= 1;
3164 memcpy(pmConf
->filters
[i
].pattern
, netdev
->dev_addr
, ETH_ALEN
);
3165 pmConf
->filters
[i
].mask
[0] = 0x3F; /* LSB ETH_ALEN bits */
3167 pmConf
->wakeUpEvents
|= VMXNET3_PM_WAKEUP_FILTER
;
3171 if (adapter
->wol
& WAKE_ARP
) {
3172 in_dev
= in_dev_get(netdev
);
3176 ifa
= (struct in_ifaddr
*)in_dev
->ifa_list
;
3180 pmConf
->filters
[i
].patternSize
= ETH_HLEN
+ /* Ethernet header*/
3181 sizeof(struct arphdr
) + /* ARP header */
3182 2 * ETH_ALEN
+ /* 2 Ethernet addresses*/
3183 2 * sizeof(u32
); /*2 IPv4 addresses */
3184 pmConf
->filters
[i
].maskSize
=
3185 (pmConf
->filters
[i
].patternSize
- 1) / 8 + 1;
3187 /* ETH_P_ARP in Ethernet header. */
3188 ehdr
= (struct ethhdr
*)pmConf
->filters
[i
].pattern
;
3189 ehdr
->h_proto
= htons(ETH_P_ARP
);
3191 /* ARPOP_REQUEST in ARP header. */
3192 ahdr
= (struct arphdr
*)&pmConf
->filters
[i
].pattern
[ETH_HLEN
];
3193 ahdr
->ar_op
= htons(ARPOP_REQUEST
);
3194 arpreq
= (u8
*)(ahdr
+ 1);
3196 /* The Unicast IPv4 address in 'tip' field. */
3197 arpreq
+= 2 * ETH_ALEN
+ sizeof(u32
);
3198 *(u32
*)arpreq
= ifa
->ifa_address
;
3200 /* The mask for the relevant bits. */
3201 pmConf
->filters
[i
].mask
[0] = 0x00;
3202 pmConf
->filters
[i
].mask
[1] = 0x30; /* ETH_P_ARP */
3203 pmConf
->filters
[i
].mask
[2] = 0x30; /* ARPOP_REQUEST */
3204 pmConf
->filters
[i
].mask
[3] = 0x00;
3205 pmConf
->filters
[i
].mask
[4] = 0xC0; /* IPv4 TIP */
3206 pmConf
->filters
[i
].mask
[5] = 0x03; /* IPv4 TIP */
3209 pmConf
->wakeUpEvents
|= VMXNET3_PM_WAKEUP_FILTER
;
3214 if (adapter
->wol
& WAKE_MAGIC
)
3215 pmConf
->wakeUpEvents
|= VMXNET3_PM_WAKEUP_MAGIC
;
3217 pmConf
->numFilters
= i
;
3219 adapter
->shared
->devRead
.pmConfDesc
.confVer
= cpu_to_le32(1);
3220 adapter
->shared
->devRead
.pmConfDesc
.confLen
= cpu_to_le32(sizeof(
3222 adapter
->shared
->devRead
.pmConfDesc
.confPA
= cpu_to_le64(virt_to_phys(
3225 spin_lock_irqsave(&adapter
->cmd_lock
, flags
);
3226 VMXNET3_WRITE_BAR1_REG(adapter
, VMXNET3_REG_CMD
,
3227 VMXNET3_CMD_UPDATE_PMCFG
);
3228 spin_unlock_irqrestore(&adapter
->cmd_lock
, flags
);
3230 pci_save_state(pdev
);
3231 pci_enable_wake(pdev
, pci_choose_state(pdev
, PMSG_SUSPEND
),
3233 pci_disable_device(pdev
);
3234 pci_set_power_state(pdev
, pci_choose_state(pdev
, PMSG_SUSPEND
));
3241 vmxnet3_resume(struct device
*device
)
3244 unsigned long flags
;
3245 struct pci_dev
*pdev
= to_pci_dev(device
);
3246 struct net_device
*netdev
= pci_get_drvdata(pdev
);
3247 struct vmxnet3_adapter
*adapter
= netdev_priv(netdev
);
3248 struct Vmxnet3_PMConf
*pmConf
;
3250 if (!netif_running(netdev
))
3253 /* Destroy wake-up filters. */
3254 pmConf
= adapter
->pm_conf
;
3255 memset(pmConf
, 0, sizeof(*pmConf
));
3257 adapter
->shared
->devRead
.pmConfDesc
.confVer
= cpu_to_le32(1);
3258 adapter
->shared
->devRead
.pmConfDesc
.confLen
= cpu_to_le32(sizeof(
3260 adapter
->shared
->devRead
.pmConfDesc
.confPA
= cpu_to_le64(virt_to_phys(
3263 netif_device_attach(netdev
);
3264 pci_set_power_state(pdev
, PCI_D0
);
3265 pci_restore_state(pdev
);
3266 err
= pci_enable_device_mem(pdev
);
3270 pci_enable_wake(pdev
, PCI_D0
, 0);
3272 spin_lock_irqsave(&adapter
->cmd_lock
, flags
);
3273 VMXNET3_WRITE_BAR1_REG(adapter
, VMXNET3_REG_CMD
,
3274 VMXNET3_CMD_UPDATE_PMCFG
);
3275 spin_unlock_irqrestore(&adapter
->cmd_lock
, flags
);
3276 vmxnet3_alloc_intr_resources(adapter
);
3277 vmxnet3_request_irqs(adapter
);
3278 for (i
= 0; i
< adapter
->num_rx_queues
; i
++)
3279 napi_enable(&adapter
->rx_queue
[i
].napi
);
3280 vmxnet3_enable_all_intrs(adapter
);
3285 static const struct dev_pm_ops vmxnet3_pm_ops
= {
3286 .suspend
= vmxnet3_suspend
,
3287 .resume
= vmxnet3_resume
,
3291 static struct pci_driver vmxnet3_driver
= {
3292 .name
= vmxnet3_driver_name
,
3293 .id_table
= vmxnet3_pciid_table
,
3294 .probe
= vmxnet3_probe_device
,
3295 .remove
= vmxnet3_remove_device
,
3297 .driver
.pm
= &vmxnet3_pm_ops
,
3303 vmxnet3_init_module(void)
3305 printk(KERN_INFO
"%s - version %s\n", VMXNET3_DRIVER_DESC
,
3306 VMXNET3_DRIVER_VERSION_REPORT
);
3307 return pci_register_driver(&vmxnet3_driver
);
3310 module_init(vmxnet3_init_module
);
3314 vmxnet3_exit_module(void)
3316 pci_unregister_driver(&vmxnet3_driver
);
3319 module_exit(vmxnet3_exit_module
);
3321 MODULE_AUTHOR("VMware, Inc.");
3322 MODULE_DESCRIPTION(VMXNET3_DRIVER_DESC
);
3323 MODULE_LICENSE("GPL v2");
3324 MODULE_VERSION(VMXNET3_DRIVER_VERSION_STRING
);