1 /*******************************************************************************
3 * Copyright (c) 2015-2016 Intel Corporation. All rights reserved.
5 * This software is available to you under a choice of one of two
6 * licenses. You may choose to be licensed under the terms of the GNU
7 * General Public License (GPL) Version 2, available from the file
8 * COPYING in the main directory of this source tree, or the
9 * OpenFabrics.org BSD license below:
11 * Redistribution and use in source and binary forms, with or
12 * without modification, are permitted provided that the following
15 * - Redistributions of source code must retain the above
16 * copyright notice, this list of conditions and the following
19 * - Redistributions in binary form must reproduce the above
20 * copyright notice, this list of conditions and the following
21 * disclaimer in the documentation and/or other materials
22 * provided with the distribution.
24 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
25 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
26 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
27 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
28 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
29 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
30 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
33 *******************************************************************************/
35 #include <linux/module.h>
36 #include <linux/moduleparam.h>
37 #include <linux/netdevice.h>
38 #include <linux/etherdevice.h>
39 #include <linux/ethtool.h>
40 #include <linux/mii.h>
41 #include <linux/if_vlan.h>
42 #include <linux/crc32.h>
45 #include <linux/tcp.h>
46 #include <linux/init.h>
49 #include <asm/byteorder.h>
50 #include <net/netevent.h>
51 #include <net/neighbour.h>
55 * i40iw_arp_table - manage arp table
56 * @iwdev: iwarp device
57 * @ip_addr: ip address for device
58 * @mac_addr: mac address ptr
59 * @action: modify, delete or add
61 int i40iw_arp_table(struct i40iw_device
*iwdev
,
72 memset(ip
, 0, sizeof(ip
));
75 memcpy(ip
, ip_addr
, sizeof(ip
));
78 for (arp_index
= 0; (u32
)arp_index
< iwdev
->arp_table_size
; arp_index
++)
79 if (memcmp(iwdev
->arp_table
[arp_index
].ip_addr
, ip
, sizeof(ip
)) == 0)
83 if (arp_index
!= iwdev
->arp_table_size
)
87 err
= i40iw_alloc_resource(iwdev
, iwdev
->allocated_arps
,
88 iwdev
->arp_table_size
,
90 &iwdev
->next_arp_index
);
95 memcpy(iwdev
->arp_table
[arp_index
].ip_addr
, ip
, sizeof(ip
));
96 ether_addr_copy(iwdev
->arp_table
[arp_index
].mac_addr
, mac_addr
);
98 case I40IW_ARP_RESOLVE
:
99 if (arp_index
== iwdev
->arp_table_size
)
102 case I40IW_ARP_DELETE
:
103 if (arp_index
== iwdev
->arp_table_size
)
105 memset(iwdev
->arp_table
[arp_index
].ip_addr
, 0,
106 sizeof(iwdev
->arp_table
[arp_index
].ip_addr
));
107 eth_zero_addr(iwdev
->arp_table
[arp_index
].mac_addr
);
108 i40iw_free_resource(iwdev
, iwdev
->allocated_arps
, arp_index
);
117 * i40iw_wr32 - write 32 bits to hw register
118 * @hw: hardware information including registers
119 * @reg: register offset
120 * @value: vvalue to write to register
122 inline void i40iw_wr32(struct i40iw_hw
*hw
, u32 reg
, u32 value
)
124 writel(value
, hw
->hw_addr
+ reg
);
128 * i40iw_rd32 - read a 32 bit hw register
129 * @hw: hardware information including registers
130 * @reg: register offset
132 * Return value of register content
134 inline u32
i40iw_rd32(struct i40iw_hw
*hw
, u32 reg
)
136 return readl(hw
->hw_addr
+ reg
);
140 * i40iw_inetaddr_event - system notifier for netdev events
142 * @event: event for notifier
145 int i40iw_inetaddr_event(struct notifier_block
*notifier
,
149 struct in_ifaddr
*ifa
= ptr
;
150 struct net_device
*event_netdev
= ifa
->ifa_dev
->dev
;
151 struct net_device
*netdev
;
152 struct net_device
*upper_dev
;
153 struct i40iw_device
*iwdev
;
154 struct i40iw_handler
*hdl
;
156 u32 action
= I40IW_ARP_ADD
;
158 hdl
= i40iw_find_netdev(event_netdev
);
162 iwdev
= &hdl
->device
;
163 if (iwdev
->init_state
< INET_NOTIFIER
)
166 netdev
= iwdev
->ldev
->netdev
;
167 upper_dev
= netdev_master_upper_dev_get(netdev
);
168 if (netdev
!= event_netdev
)
172 local_ipaddr
= ntohl(
173 ((struct in_device
*)upper_dev
->ip_ptr
)->ifa_list
->ifa_address
);
175 local_ipaddr
= ntohl(ifa
->ifa_address
);
178 action
= I40IW_ARP_DELETE
;
182 case NETDEV_CHANGEADDR
:
183 i40iw_manage_arp_cache(iwdev
,
188 i40iw_if_notify(iwdev
, netdev
, &local_ipaddr
, true,
189 (action
== I40IW_ARP_ADD
) ? true : false);
198 * i40iw_inet6addr_event - system notifier for ipv6 netdev events
200 * @event: event for notifier
203 int i40iw_inet6addr_event(struct notifier_block
*notifier
,
207 struct inet6_ifaddr
*ifa
= (struct inet6_ifaddr
*)ptr
;
208 struct net_device
*event_netdev
= ifa
->idev
->dev
;
209 struct net_device
*netdev
;
210 struct i40iw_device
*iwdev
;
211 struct i40iw_handler
*hdl
;
212 u32 local_ipaddr6
[4];
213 u32 action
= I40IW_ARP_ADD
;
215 hdl
= i40iw_find_netdev(event_netdev
);
219 iwdev
= &hdl
->device
;
220 if (iwdev
->init_state
< INET_NOTIFIER
)
223 netdev
= iwdev
->ldev
->netdev
;
224 if (netdev
!= event_netdev
)
227 i40iw_copy_ip_ntohl(local_ipaddr6
, ifa
->addr
.in6_u
.u6_addr32
);
230 action
= I40IW_ARP_DELETE
;
234 case NETDEV_CHANGEADDR
:
235 i40iw_manage_arp_cache(iwdev
,
240 i40iw_if_notify(iwdev
, netdev
, local_ipaddr6
, false,
241 (action
== I40IW_ARP_ADD
) ? true : false);
250 * i40iw_net_event - system notifier for net events
252 * @event: event for notifier
255 int i40iw_net_event(struct notifier_block
*notifier
, unsigned long event
, void *ptr
)
257 struct neighbour
*neigh
= ptr
;
258 struct i40iw_device
*iwdev
;
259 struct i40iw_handler
*iwhdl
;
264 case NETEVENT_NEIGH_UPDATE
:
265 iwhdl
= i40iw_find_netdev((struct net_device
*)neigh
->dev
);
268 iwdev
= &iwhdl
->device
;
269 if (iwdev
->init_state
< INET_NOTIFIER
)
271 p
= (__be32
*)neigh
->primary_key
;
272 i40iw_copy_ip_ntohl(local_ipaddr
, p
);
273 if (neigh
->nud_state
& NUD_VALID
) {
274 i40iw_manage_arp_cache(iwdev
,
281 i40iw_manage_arp_cache(iwdev
,
295 * i40iw_get_cqp_request - get cqp struct
296 * @cqp: device cqp ptr
297 * @wait: cqp to be used in wait mode
299 struct i40iw_cqp_request
*i40iw_get_cqp_request(struct i40iw_cqp
*cqp
, bool wait
)
301 struct i40iw_cqp_request
*cqp_request
= NULL
;
304 spin_lock_irqsave(&cqp
->req_lock
, flags
);
305 if (!list_empty(&cqp
->cqp_avail_reqs
)) {
306 cqp_request
= list_entry(cqp
->cqp_avail_reqs
.next
,
307 struct i40iw_cqp_request
, list
);
308 list_del_init(&cqp_request
->list
);
310 spin_unlock_irqrestore(&cqp
->req_lock
, flags
);
312 cqp_request
= kzalloc(sizeof(*cqp_request
), GFP_ATOMIC
);
314 cqp_request
->dynamic
= true;
315 INIT_LIST_HEAD(&cqp_request
->list
);
316 init_waitqueue_head(&cqp_request
->waitq
);
320 i40iw_pr_err("CQP Request Fail: No Memory");
325 atomic_set(&cqp_request
->refcount
, 2);
326 cqp_request
->waiting
= true;
328 atomic_set(&cqp_request
->refcount
, 1);
334 * i40iw_free_cqp_request - free cqp request
336 * @cqp_request: to be put back in cqp list
338 void i40iw_free_cqp_request(struct i40iw_cqp
*cqp
, struct i40iw_cqp_request
*cqp_request
)
342 if (cqp_request
->dynamic
) {
345 cqp_request
->request_done
= false;
346 cqp_request
->callback_fcn
= NULL
;
347 cqp_request
->waiting
= false;
349 spin_lock_irqsave(&cqp
->req_lock
, flags
);
350 list_add_tail(&cqp_request
->list
, &cqp
->cqp_avail_reqs
);
351 spin_unlock_irqrestore(&cqp
->req_lock
, flags
);
356 * i40iw_put_cqp_request - dec ref count and free if 0
358 * @cqp_request: to be put back in cqp list
360 void i40iw_put_cqp_request(struct i40iw_cqp
*cqp
,
361 struct i40iw_cqp_request
*cqp_request
)
363 if (atomic_dec_and_test(&cqp_request
->refcount
))
364 i40iw_free_cqp_request(cqp
, cqp_request
);
368 * i40iw_free_qp - callback after destroy cqp completes
369 * @cqp_request: cqp request for destroy qp
372 static void i40iw_free_qp(struct i40iw_cqp_request
*cqp_request
, u32 num
)
374 struct i40iw_sc_qp
*qp
= (struct i40iw_sc_qp
*)cqp_request
->param
;
375 struct i40iw_qp
*iwqp
= (struct i40iw_qp
*)qp
->back_qp
;
376 struct i40iw_device
*iwdev
;
377 u32 qp_num
= iwqp
->ibqp
.qp_num
;
381 i40iw_rem_pdusecount(iwqp
->iwpd
, iwdev
);
382 i40iw_free_qp_resources(iwdev
, iwqp
, qp_num
);
383 i40iw_rem_devusecount(iwdev
);
387 * i40iw_wait_event - wait for completion
388 * @iwdev: iwarp device
389 * @cqp_request: cqp request to wait
391 static int i40iw_wait_event(struct i40iw_device
*iwdev
,
392 struct i40iw_cqp_request
*cqp_request
)
394 struct cqp_commands_info
*info
= &cqp_request
->info
;
395 struct i40iw_cqp
*iwcqp
= &iwdev
->cqp
;
396 bool cqp_error
= false;
400 timeout_ret
= wait_event_timeout(cqp_request
->waitq
,
401 cqp_request
->request_done
,
402 I40IW_EVENT_TIMEOUT
);
404 i40iw_pr_err("error cqp command 0x%x timed out ret = %d\n",
405 info
->cqp_cmd
, timeout_ret
);
409 i40iw_request_reset(iwdev
);
413 cqp_error
= cqp_request
->compl_info
.error
;
415 i40iw_pr_err("error cqp command 0x%x completion maj = 0x%x min=0x%x\n",
416 info
->cqp_cmd
, cqp_request
->compl_info
.maj_err_code
,
417 cqp_request
->compl_info
.min_err_code
);
422 i40iw_put_cqp_request(iwcqp
, cqp_request
);
427 * i40iw_handle_cqp_op - process cqp command
428 * @iwdev: iwarp device
429 * @cqp_request: cqp request to process
431 enum i40iw_status_code
i40iw_handle_cqp_op(struct i40iw_device
*iwdev
,
432 struct i40iw_cqp_request
435 struct i40iw_sc_dev
*dev
= &iwdev
->sc_dev
;
436 enum i40iw_status_code status
;
437 struct cqp_commands_info
*info
= &cqp_request
->info
;
441 i40iw_free_cqp_request(&iwdev
->cqp
, cqp_request
);
442 return I40IW_ERR_CQP_COMPL_ERROR
;
445 status
= i40iw_process_cqp_cmd(dev
, info
);
447 i40iw_pr_err("error cqp command 0x%x failed\n", info
->cqp_cmd
);
448 i40iw_free_cqp_request(&iwdev
->cqp
, cqp_request
);
451 if (cqp_request
->waiting
)
452 err_code
= i40iw_wait_event(iwdev
, cqp_request
);
454 status
= I40IW_ERR_CQP_COMPL_ERROR
;
459 * i40iw_add_devusecount - add dev refcount
460 * @iwdev: dev for refcount
462 void i40iw_add_devusecount(struct i40iw_device
*iwdev
)
464 atomic64_inc(&iwdev
->use_count
);
468 * i40iw_rem_devusecount - decrement refcount for dev
471 void i40iw_rem_devusecount(struct i40iw_device
*iwdev
)
473 if (!atomic64_dec_and_test(&iwdev
->use_count
))
475 wake_up(&iwdev
->close_wq
);
479 * i40iw_add_pdusecount - add pd refcount
480 * @iwpd: pd for refcount
482 void i40iw_add_pdusecount(struct i40iw_pd
*iwpd
)
484 atomic_inc(&iwpd
->usecount
);
488 * i40iw_rem_pdusecount - decrement refcount for pd and free if 0
489 * @iwpd: pd for refcount
490 * @iwdev: iwarp device
492 void i40iw_rem_pdusecount(struct i40iw_pd
*iwpd
, struct i40iw_device
*iwdev
)
494 if (!atomic_dec_and_test(&iwpd
->usecount
))
496 i40iw_free_resource(iwdev
, iwdev
->allocated_pds
, iwpd
->sc_pd
.pd_id
);
501 * i40iw_add_ref - add refcount for qp
504 void i40iw_add_ref(struct ib_qp
*ibqp
)
506 struct i40iw_qp
*iwqp
= (struct i40iw_qp
*)ibqp
;
508 atomic_inc(&iwqp
->refcount
);
512 * i40iw_rem_ref - rem refcount for qp and free if 0
515 void i40iw_rem_ref(struct ib_qp
*ibqp
)
517 struct i40iw_qp
*iwqp
;
518 enum i40iw_status_code status
;
519 struct i40iw_cqp_request
*cqp_request
;
520 struct cqp_commands_info
*cqp_info
;
521 struct i40iw_device
*iwdev
;
525 iwqp
= to_iwqp(ibqp
);
527 spin_lock_irqsave(&iwdev
->qptable_lock
, flags
);
528 if (!atomic_dec_and_test(&iwqp
->refcount
)) {
529 spin_unlock_irqrestore(&iwdev
->qptable_lock
, flags
);
533 qp_num
= iwqp
->ibqp
.qp_num
;
534 iwdev
->qp_table
[qp_num
] = NULL
;
535 spin_unlock_irqrestore(&iwdev
->qptable_lock
, flags
);
536 cqp_request
= i40iw_get_cqp_request(&iwdev
->cqp
, false);
540 cqp_request
->callback_fcn
= i40iw_free_qp
;
541 cqp_request
->param
= (void *)&iwqp
->sc_qp
;
542 cqp_info
= &cqp_request
->info
;
543 cqp_info
->cqp_cmd
= OP_QP_DESTROY
;
544 cqp_info
->post_sq
= 1;
545 cqp_info
->in
.u
.qp_destroy
.qp
= &iwqp
->sc_qp
;
546 cqp_info
->in
.u
.qp_destroy
.scratch
= (uintptr_t)cqp_request
;
547 cqp_info
->in
.u
.qp_destroy
.remove_hash_idx
= true;
548 status
= i40iw_handle_cqp_op(iwdev
, cqp_request
);
550 i40iw_pr_err("CQP-OP Destroy QP fail");
554 * i40iw_get_qp - get qp address
555 * @device: iwarp device
558 struct ib_qp
*i40iw_get_qp(struct ib_device
*device
, int qpn
)
560 struct i40iw_device
*iwdev
= to_iwdev(device
);
562 if ((qpn
< IW_FIRST_QPN
) || (qpn
>= iwdev
->max_qp
))
565 return &iwdev
->qp_table
[qpn
]->ibqp
;
569 * i40iw_debug_buf - print debug msg and buffer is mask set
570 * @dev: hardware control device structure
571 * @mask: mask to compare if to print debug buffer
572 * @buf: points buffer addr
573 * @size: saize of buffer to print
575 void i40iw_debug_buf(struct i40iw_sc_dev
*dev
,
576 enum i40iw_debug_flag mask
,
583 if (!(dev
->debug_mask
& mask
))
585 i40iw_debug(dev
, mask
, "%s\n", desc
);
586 i40iw_debug(dev
, mask
, "starting address virt=%p phy=%llxh\n", buf
,
587 (unsigned long long)virt_to_phys(buf
));
589 for (i
= 0; i
< size
; i
+= 8)
590 i40iw_debug(dev
, mask
, "index %03d val: %016llx\n", i
, buf
[i
/ 8]);
594 * i40iw_get_hw_addr - return hw addr
595 * @par: points to shared dev
597 u8 __iomem
*i40iw_get_hw_addr(void *par
)
599 struct i40iw_sc_dev
*dev
= (struct i40iw_sc_dev
*)par
;
601 return dev
->hw
->hw_addr
;
605 * i40iw_remove_head - return head entry and remove from list
606 * @list: list for entry
608 void *i40iw_remove_head(struct list_head
*list
)
610 struct list_head
*entry
;
612 if (list_empty(list
))
615 entry
= (void *)list
->next
;
617 return (void *)entry
;
621 * i40iw_allocate_dma_mem - Memory alloc helper fn
622 * @hw: pointer to the HW structure
623 * @mem: ptr to mem struct to fill out
624 * @size: size of memory requested
625 * @alignment: what to align the allocation to
627 enum i40iw_status_code
i40iw_allocate_dma_mem(struct i40iw_hw
*hw
,
628 struct i40iw_dma_mem
*mem
,
632 struct pci_dev
*pcidev
= (struct pci_dev
*)hw
->dev_context
;
635 return I40IW_ERR_PARAM
;
636 mem
->size
= ALIGN(size
, alignment
);
637 mem
->va
= dma_zalloc_coherent(&pcidev
->dev
, mem
->size
,
638 (dma_addr_t
*)&mem
->pa
, GFP_KERNEL
);
640 return I40IW_ERR_NO_MEMORY
;
645 * i40iw_free_dma_mem - Memory free helper fn
646 * @hw: pointer to the HW structure
647 * @mem: ptr to mem struct to free
649 void i40iw_free_dma_mem(struct i40iw_hw
*hw
, struct i40iw_dma_mem
*mem
)
651 struct pci_dev
*pcidev
= (struct pci_dev
*)hw
->dev_context
;
653 if (!mem
|| !mem
->va
)
656 dma_free_coherent(&pcidev
->dev
, mem
->size
,
657 mem
->va
, (dma_addr_t
)mem
->pa
);
662 * i40iw_allocate_virt_mem - virtual memory alloc helper fn
663 * @hw: pointer to the HW structure
664 * @mem: ptr to mem struct to fill out
665 * @size: size of memory requested
667 enum i40iw_status_code
i40iw_allocate_virt_mem(struct i40iw_hw
*hw
,
668 struct i40iw_virt_mem
*mem
,
672 return I40IW_ERR_PARAM
;
675 mem
->va
= kzalloc(size
, GFP_KERNEL
);
680 return I40IW_ERR_NO_MEMORY
;
684 * i40iw_free_virt_mem - virtual memory free helper fn
685 * @hw: pointer to the HW structure
686 * @mem: ptr to mem struct to free
688 enum i40iw_status_code
i40iw_free_virt_mem(struct i40iw_hw
*hw
,
689 struct i40iw_virt_mem
*mem
)
692 return I40IW_ERR_PARAM
;
694 * mem->va points to the parent of mem, so both mem and mem->va
695 * can not be touched once mem->va is freed
702 * i40iw_cqp_sds_cmd - create cqp command for sd
703 * @dev: hardware control device structure
704 * @sd_info: information for sd cqp
707 enum i40iw_status_code
i40iw_cqp_sds_cmd(struct i40iw_sc_dev
*dev
,
708 struct i40iw_update_sds_info
*sdinfo
)
710 enum i40iw_status_code status
;
711 struct i40iw_cqp_request
*cqp_request
;
712 struct cqp_commands_info
*cqp_info
;
713 struct i40iw_device
*iwdev
= (struct i40iw_device
*)dev
->back_dev
;
715 cqp_request
= i40iw_get_cqp_request(&iwdev
->cqp
, true);
717 return I40IW_ERR_NO_MEMORY
;
718 cqp_info
= &cqp_request
->info
;
719 memcpy(&cqp_info
->in
.u
.update_pe_sds
.info
, sdinfo
,
720 sizeof(cqp_info
->in
.u
.update_pe_sds
.info
));
721 cqp_info
->cqp_cmd
= OP_UPDATE_PE_SDS
;
722 cqp_info
->post_sq
= 1;
723 cqp_info
->in
.u
.update_pe_sds
.dev
= dev
;
724 cqp_info
->in
.u
.update_pe_sds
.scratch
= (uintptr_t)cqp_request
;
725 status
= i40iw_handle_cqp_op(iwdev
, cqp_request
);
727 i40iw_pr_err("CQP-OP Update SD's fail");
732 * i40iw_qp_suspend_resume - cqp command for suspend/resume
733 * @dev: hardware control device structure
734 * @qp: hardware control qp
735 * @suspend: flag if suspend or resume
737 void i40iw_qp_suspend_resume(struct i40iw_sc_dev
*dev
, struct i40iw_sc_qp
*qp
, bool suspend
)
739 struct i40iw_device
*iwdev
= (struct i40iw_device
*)dev
->back_dev
;
740 struct i40iw_cqp_request
*cqp_request
;
741 struct i40iw_sc_cqp
*cqp
= dev
->cqp
;
742 struct cqp_commands_info
*cqp_info
;
743 enum i40iw_status_code status
;
745 cqp_request
= i40iw_get_cqp_request(&iwdev
->cqp
, false);
749 cqp_info
= &cqp_request
->info
;
750 cqp_info
->cqp_cmd
= (suspend
) ? OP_SUSPEND
: OP_RESUME
;
751 cqp_info
->in
.u
.suspend_resume
.cqp
= cqp
;
752 cqp_info
->in
.u
.suspend_resume
.qp
= qp
;
753 cqp_info
->in
.u
.suspend_resume
.scratch
= (uintptr_t)cqp_request
;
754 status
= i40iw_handle_cqp_op(iwdev
, cqp_request
);
756 i40iw_pr_err("CQP-OP QP Suspend/Resume fail");
760 * i40iw_qp_mss_modify - modify mss for qp
761 * @dev: hardware control device structure
762 * @qp: hardware control qp
764 void i40iw_qp_mss_modify(struct i40iw_sc_dev
*dev
, struct i40iw_sc_qp
*qp
)
766 struct i40iw_device
*iwdev
= (struct i40iw_device
*)dev
->back_dev
;
767 struct i40iw_qp
*iwqp
= (struct i40iw_qp
*)qp
->back_qp
;
768 struct i40iw_modify_qp_info info
;
770 memset(&info
, 0, sizeof(info
));
771 info
.mss_change
= true;
772 info
.new_mss
= qp
->vsi
->mss
;
773 i40iw_hw_modify_qp(iwdev
, iwqp
, &info
, false);
777 * i40iw_term_modify_qp - modify qp for term message
778 * @qp: hardware control qp
779 * @next_state: qp's next state
780 * @term: terminate code
783 void i40iw_term_modify_qp(struct i40iw_sc_qp
*qp
, u8 next_state
, u8 term
, u8 term_len
)
785 struct i40iw_qp
*iwqp
;
787 iwqp
= (struct i40iw_qp
*)qp
->back_qp
;
788 i40iw_next_iw_state(iwqp
, next_state
, 0, term
, term_len
);
792 * i40iw_terminate_done - after terminate is completed
793 * @qp: hardware control qp
794 * @timeout_occurred: indicates if terminate timer expired
796 void i40iw_terminate_done(struct i40iw_sc_qp
*qp
, int timeout_occurred
)
798 struct i40iw_qp
*iwqp
;
799 u32 next_iwarp_state
= I40IW_QP_STATE_ERROR
;
804 iwqp
= (struct i40iw_qp
*)qp
->back_qp
;
805 spin_lock_irqsave(&iwqp
->lock
, flags
);
806 if (iwqp
->hte_added
) {
810 first_time
= !(qp
->term_flags
& I40IW_TERM_DONE
);
811 qp
->term_flags
|= I40IW_TERM_DONE
;
812 spin_unlock_irqrestore(&iwqp
->lock
, flags
);
814 if (!timeout_occurred
)
815 i40iw_terminate_del_timer(qp
);
817 next_iwarp_state
= I40IW_QP_STATE_CLOSING
;
819 i40iw_next_iw_state(iwqp
, next_iwarp_state
, hte
, 0, 0);
820 i40iw_cm_disconn(iwqp
);
825 * i40iw_terminate_imeout - timeout happened
826 * @context: points to iwarp qp
828 static void i40iw_terminate_timeout(unsigned long context
)
830 struct i40iw_qp
*iwqp
= (struct i40iw_qp
*)context
;
831 struct i40iw_sc_qp
*qp
= (struct i40iw_sc_qp
*)&iwqp
->sc_qp
;
833 i40iw_terminate_done(qp
, 1);
834 i40iw_rem_ref(&iwqp
->ibqp
);
838 * i40iw_terminate_start_timer - start terminate timeout
839 * @qp: hardware control qp
841 void i40iw_terminate_start_timer(struct i40iw_sc_qp
*qp
)
843 struct i40iw_qp
*iwqp
;
845 iwqp
= (struct i40iw_qp
*)qp
->back_qp
;
846 i40iw_add_ref(&iwqp
->ibqp
);
847 init_timer(&iwqp
->terminate_timer
);
848 iwqp
->terminate_timer
.function
= i40iw_terminate_timeout
;
849 iwqp
->terminate_timer
.expires
= jiffies
+ HZ
;
850 iwqp
->terminate_timer
.data
= (unsigned long)iwqp
;
851 add_timer(&iwqp
->terminate_timer
);
855 * i40iw_terminate_del_timer - delete terminate timeout
856 * @qp: hardware control qp
858 void i40iw_terminate_del_timer(struct i40iw_sc_qp
*qp
)
860 struct i40iw_qp
*iwqp
;
862 iwqp
= (struct i40iw_qp
*)qp
->back_qp
;
863 if (del_timer(&iwqp
->terminate_timer
))
864 i40iw_rem_ref(&iwqp
->ibqp
);
868 * i40iw_cqp_generic_worker - generic worker for cqp
869 * @work: work pointer
871 static void i40iw_cqp_generic_worker(struct work_struct
*work
)
873 struct i40iw_virtchnl_work_info
*work_info
=
874 &((struct virtchnl_work
*)work
)->work_info
;
876 if (work_info
->worker_vf_dev
)
877 work_info
->callback_fcn(work_info
->worker_vf_dev
);
881 * i40iw_cqp_spawn_worker - spawn worket thread
882 * @iwdev: device struct pointer
883 * @work_info: work request info
884 * @iw_vf_idx: virtual function index
886 void i40iw_cqp_spawn_worker(struct i40iw_sc_dev
*dev
,
887 struct i40iw_virtchnl_work_info
*work_info
,
890 struct virtchnl_work
*work
;
891 struct i40iw_device
*iwdev
= (struct i40iw_device
*)dev
->back_dev
;
893 work
= &iwdev
->virtchnl_w
[iw_vf_idx
];
894 memcpy(&work
->work_info
, work_info
, sizeof(*work_info
));
895 INIT_WORK(&work
->work
, i40iw_cqp_generic_worker
);
896 queue_work(iwdev
->virtchnl_wq
, &work
->work
);
900 * i40iw_cqp_manage_hmc_fcn_worker -
901 * @work: work pointer for hmc info
903 static void i40iw_cqp_manage_hmc_fcn_worker(struct work_struct
*work
)
905 struct i40iw_cqp_request
*cqp_request
=
906 ((struct virtchnl_work
*)work
)->cqp_request
;
907 struct i40iw_ccq_cqe_info ccq_cqe_info
;
908 struct i40iw_hmc_fcn_info
*hmcfcninfo
=
909 &cqp_request
->info
.in
.u
.manage_hmc_pm
.info
;
910 struct i40iw_device
*iwdev
=
911 (struct i40iw_device
*)cqp_request
->info
.in
.u
.manage_hmc_pm
.dev
->back_dev
;
913 ccq_cqe_info
.cqp
= NULL
;
914 ccq_cqe_info
.maj_err_code
= cqp_request
->compl_info
.maj_err_code
;
915 ccq_cqe_info
.min_err_code
= cqp_request
->compl_info
.min_err_code
;
916 ccq_cqe_info
.op_code
= cqp_request
->compl_info
.op_code
;
917 ccq_cqe_info
.op_ret_val
= cqp_request
->compl_info
.op_ret_val
;
918 ccq_cqe_info
.scratch
= 0;
919 ccq_cqe_info
.error
= cqp_request
->compl_info
.error
;
920 hmcfcninfo
->callback_fcn(cqp_request
->info
.in
.u
.manage_hmc_pm
.dev
,
921 hmcfcninfo
->cqp_callback_param
, &ccq_cqe_info
);
922 i40iw_put_cqp_request(&iwdev
->cqp
, cqp_request
);
926 * i40iw_cqp_manage_hmc_fcn_callback - called function after cqp completion
927 * @cqp_request: cqp request info struct for hmc fun
928 * @unused: unused param of callback
930 static void i40iw_cqp_manage_hmc_fcn_callback(struct i40iw_cqp_request
*cqp_request
,
933 struct virtchnl_work
*work
;
934 struct i40iw_hmc_fcn_info
*hmcfcninfo
=
935 &cqp_request
->info
.in
.u
.manage_hmc_pm
.info
;
936 struct i40iw_device
*iwdev
=
937 (struct i40iw_device
*)cqp_request
->info
.in
.u
.manage_hmc_pm
.dev
->
940 if (hmcfcninfo
&& hmcfcninfo
->callback_fcn
) {
941 i40iw_debug(&iwdev
->sc_dev
, I40IW_DEBUG_HMC
, "%s1\n", __func__
);
942 atomic_inc(&cqp_request
->refcount
);
943 work
= &iwdev
->virtchnl_w
[hmcfcninfo
->iw_vf_idx
];
944 work
->cqp_request
= cqp_request
;
945 INIT_WORK(&work
->work
, i40iw_cqp_manage_hmc_fcn_worker
);
946 queue_work(iwdev
->virtchnl_wq
, &work
->work
);
947 i40iw_debug(&iwdev
->sc_dev
, I40IW_DEBUG_HMC
, "%s2\n", __func__
);
949 i40iw_debug(&iwdev
->sc_dev
, I40IW_DEBUG_HMC
, "%s: Something wrong\n", __func__
);
954 * i40iw_cqp_manage_hmc_fcn_cmd - issue cqp command to manage hmc
955 * @dev: hardware control device structure
956 * @hmcfcninfo: info for hmc
958 enum i40iw_status_code
i40iw_cqp_manage_hmc_fcn_cmd(struct i40iw_sc_dev
*dev
,
959 struct i40iw_hmc_fcn_info
*hmcfcninfo
)
961 enum i40iw_status_code status
;
962 struct i40iw_cqp_request
*cqp_request
;
963 struct cqp_commands_info
*cqp_info
;
964 struct i40iw_device
*iwdev
= (struct i40iw_device
*)dev
->back_dev
;
966 i40iw_debug(&iwdev
->sc_dev
, I40IW_DEBUG_HMC
, "%s\n", __func__
);
967 cqp_request
= i40iw_get_cqp_request(&iwdev
->cqp
, false);
969 return I40IW_ERR_NO_MEMORY
;
970 cqp_info
= &cqp_request
->info
;
971 cqp_request
->callback_fcn
= i40iw_cqp_manage_hmc_fcn_callback
;
972 cqp_request
->param
= hmcfcninfo
;
973 memcpy(&cqp_info
->in
.u
.manage_hmc_pm
.info
, hmcfcninfo
,
974 sizeof(*hmcfcninfo
));
975 cqp_info
->in
.u
.manage_hmc_pm
.dev
= dev
;
976 cqp_info
->cqp_cmd
= OP_MANAGE_HMC_PM_FUNC_TABLE
;
977 cqp_info
->post_sq
= 1;
978 cqp_info
->in
.u
.manage_hmc_pm
.scratch
= (uintptr_t)cqp_request
;
979 status
= i40iw_handle_cqp_op(iwdev
, cqp_request
);
981 i40iw_pr_err("CQP-OP Manage HMC fail");
986 * i40iw_cqp_query_fpm_values_cmd - send cqp command for fpm
987 * @iwdev: function device struct
988 * @values_mem: buffer for fpm
989 * @hmc_fn_id: function id for fpm
991 enum i40iw_status_code
i40iw_cqp_query_fpm_values_cmd(struct i40iw_sc_dev
*dev
,
992 struct i40iw_dma_mem
*values_mem
,
995 enum i40iw_status_code status
;
996 struct i40iw_cqp_request
*cqp_request
;
997 struct cqp_commands_info
*cqp_info
;
998 struct i40iw_device
*iwdev
= (struct i40iw_device
*)dev
->back_dev
;
1000 cqp_request
= i40iw_get_cqp_request(&iwdev
->cqp
, true);
1002 return I40IW_ERR_NO_MEMORY
;
1003 cqp_info
= &cqp_request
->info
;
1004 cqp_request
->param
= NULL
;
1005 cqp_info
->in
.u
.query_fpm_values
.cqp
= dev
->cqp
;
1006 cqp_info
->in
.u
.query_fpm_values
.fpm_values_pa
= values_mem
->pa
;
1007 cqp_info
->in
.u
.query_fpm_values
.fpm_values_va
= values_mem
->va
;
1008 cqp_info
->in
.u
.query_fpm_values
.hmc_fn_id
= hmc_fn_id
;
1009 cqp_info
->cqp_cmd
= OP_QUERY_FPM_VALUES
;
1010 cqp_info
->post_sq
= 1;
1011 cqp_info
->in
.u
.query_fpm_values
.scratch
= (uintptr_t)cqp_request
;
1012 status
= i40iw_handle_cqp_op(iwdev
, cqp_request
);
1014 i40iw_pr_err("CQP-OP Query FPM fail");
1019 * i40iw_cqp_commit_fpm_values_cmd - commit fpm values in hw
1020 * @dev: hardware control device structure
1021 * @values_mem: buffer with fpm values
1022 * @hmc_fn_id: function id for fpm
1024 enum i40iw_status_code
i40iw_cqp_commit_fpm_values_cmd(struct i40iw_sc_dev
*dev
,
1025 struct i40iw_dma_mem
*values_mem
,
1028 enum i40iw_status_code status
;
1029 struct i40iw_cqp_request
*cqp_request
;
1030 struct cqp_commands_info
*cqp_info
;
1031 struct i40iw_device
*iwdev
= (struct i40iw_device
*)dev
->back_dev
;
1033 cqp_request
= i40iw_get_cqp_request(&iwdev
->cqp
, true);
1035 return I40IW_ERR_NO_MEMORY
;
1036 cqp_info
= &cqp_request
->info
;
1037 cqp_request
->param
= NULL
;
1038 cqp_info
->in
.u
.commit_fpm_values
.cqp
= dev
->cqp
;
1039 cqp_info
->in
.u
.commit_fpm_values
.fpm_values_pa
= values_mem
->pa
;
1040 cqp_info
->in
.u
.commit_fpm_values
.fpm_values_va
= values_mem
->va
;
1041 cqp_info
->in
.u
.commit_fpm_values
.hmc_fn_id
= hmc_fn_id
;
1042 cqp_info
->cqp_cmd
= OP_COMMIT_FPM_VALUES
;
1043 cqp_info
->post_sq
= 1;
1044 cqp_info
->in
.u
.commit_fpm_values
.scratch
= (uintptr_t)cqp_request
;
1045 status
= i40iw_handle_cqp_op(iwdev
, cqp_request
);
1047 i40iw_pr_err("CQP-OP Commit FPM fail");
1052 * i40iw_vf_wait_vchnl_resp - wait for channel msg
1053 * @iwdev: function's device struct
1055 enum i40iw_status_code
i40iw_vf_wait_vchnl_resp(struct i40iw_sc_dev
*dev
)
1057 struct i40iw_device
*iwdev
= dev
->back_dev
;
1060 i40iw_debug(dev
, I40IW_DEBUG_VIRT
, "%s[%u] dev %p, iwdev %p\n",
1061 __func__
, __LINE__
, dev
, iwdev
);
1063 atomic_set(&iwdev
->vchnl_msgs
, 2);
1064 timeout_ret
= wait_event_timeout(iwdev
->vchnl_waitq
,
1065 (atomic_read(&iwdev
->vchnl_msgs
) == 1),
1066 I40IW_VCHNL_EVENT_TIMEOUT
);
1067 atomic_dec(&iwdev
->vchnl_msgs
);
1069 i40iw_pr_err("virt channel completion timeout = 0x%x\n", timeout_ret
);
1070 atomic_set(&iwdev
->vchnl_msgs
, 0);
1071 dev
->vchnl_up
= false;
1072 return I40IW_ERR_TIMEOUT
;
1074 wake_up(&dev
->vf_reqs
);
1079 * i40iw_cqp_cq_create_cmd - create a cq for the cqp
1080 * @dev: device pointer
1081 * @cq: pointer to created cq
1083 enum i40iw_status_code
i40iw_cqp_cq_create_cmd(struct i40iw_sc_dev
*dev
,
1084 struct i40iw_sc_cq
*cq
)
1086 struct i40iw_device
*iwdev
= (struct i40iw_device
*)dev
->back_dev
;
1087 struct i40iw_cqp
*iwcqp
= &iwdev
->cqp
;
1088 struct i40iw_cqp_request
*cqp_request
;
1089 struct cqp_commands_info
*cqp_info
;
1090 enum i40iw_status_code status
;
1092 cqp_request
= i40iw_get_cqp_request(iwcqp
, true);
1094 return I40IW_ERR_NO_MEMORY
;
1096 cqp_info
= &cqp_request
->info
;
1097 cqp_info
->cqp_cmd
= OP_CQ_CREATE
;
1098 cqp_info
->post_sq
= 1;
1099 cqp_info
->in
.u
.cq_create
.cq
= cq
;
1100 cqp_info
->in
.u
.cq_create
.scratch
= (uintptr_t)cqp_request
;
1101 status
= i40iw_handle_cqp_op(iwdev
, cqp_request
);
1103 i40iw_pr_err("CQP-OP Create QP fail");
1109 * i40iw_cqp_qp_create_cmd - create a qp for the cqp
1110 * @dev: device pointer
1111 * @qp: pointer to created qp
1113 enum i40iw_status_code
i40iw_cqp_qp_create_cmd(struct i40iw_sc_dev
*dev
,
1114 struct i40iw_sc_qp
*qp
)
1116 struct i40iw_device
*iwdev
= (struct i40iw_device
*)dev
->back_dev
;
1117 struct i40iw_cqp
*iwcqp
= &iwdev
->cqp
;
1118 struct i40iw_cqp_request
*cqp_request
;
1119 struct cqp_commands_info
*cqp_info
;
1120 struct i40iw_create_qp_info
*qp_info
;
1121 enum i40iw_status_code status
;
1123 cqp_request
= i40iw_get_cqp_request(iwcqp
, true);
1125 return I40IW_ERR_NO_MEMORY
;
1127 cqp_info
= &cqp_request
->info
;
1128 qp_info
= &cqp_request
->info
.in
.u
.qp_create
.info
;
1130 memset(qp_info
, 0, sizeof(*qp_info
));
1132 qp_info
->cq_num_valid
= true;
1133 qp_info
->next_iwarp_state
= I40IW_QP_STATE_RTS
;
1135 cqp_info
->cqp_cmd
= OP_QP_CREATE
;
1136 cqp_info
->post_sq
= 1;
1137 cqp_info
->in
.u
.qp_create
.qp
= qp
;
1138 cqp_info
->in
.u
.qp_create
.scratch
= (uintptr_t)cqp_request
;
1139 status
= i40iw_handle_cqp_op(iwdev
, cqp_request
);
1141 i40iw_pr_err("CQP-OP QP create fail");
1146 * i40iw_cqp_cq_destroy_cmd - destroy the cqp cq
1147 * @dev: device pointer
1148 * @cq: pointer to cq
1150 void i40iw_cqp_cq_destroy_cmd(struct i40iw_sc_dev
*dev
, struct i40iw_sc_cq
*cq
)
1152 struct i40iw_device
*iwdev
= (struct i40iw_device
*)dev
->back_dev
;
1154 i40iw_cq_wq_destroy(iwdev
, cq
);
1158 * i40iw_cqp_qp_destroy_cmd - destroy the cqp
1159 * @dev: device pointer
1160 * @qp: pointer to qp
1162 void i40iw_cqp_qp_destroy_cmd(struct i40iw_sc_dev
*dev
, struct i40iw_sc_qp
*qp
)
1164 struct i40iw_device
*iwdev
= (struct i40iw_device
*)dev
->back_dev
;
1165 struct i40iw_cqp
*iwcqp
= &iwdev
->cqp
;
1166 struct i40iw_cqp_request
*cqp_request
;
1167 struct cqp_commands_info
*cqp_info
;
1168 enum i40iw_status_code status
;
1170 cqp_request
= i40iw_get_cqp_request(iwcqp
, true);
1174 cqp_info
= &cqp_request
->info
;
1175 memset(cqp_info
, 0, sizeof(*cqp_info
));
1177 cqp_info
->cqp_cmd
= OP_QP_DESTROY
;
1178 cqp_info
->post_sq
= 1;
1179 cqp_info
->in
.u
.qp_destroy
.qp
= qp
;
1180 cqp_info
->in
.u
.qp_destroy
.scratch
= (uintptr_t)cqp_request
;
1181 cqp_info
->in
.u
.qp_destroy
.remove_hash_idx
= true;
1182 status
= i40iw_handle_cqp_op(iwdev
, cqp_request
);
1184 i40iw_pr_err("CQP QP_DESTROY fail");
1189 * i40iw_ieq_mpa_crc_ae - generate AE for crc error
1190 * @dev: hardware control device structure
1191 * @qp: hardware control qp
1193 void i40iw_ieq_mpa_crc_ae(struct i40iw_sc_dev
*dev
, struct i40iw_sc_qp
*qp
)
1195 struct i40iw_qp_flush_info info
;
1196 struct i40iw_device
*iwdev
= (struct i40iw_device
*)dev
->back_dev
;
1198 i40iw_debug(dev
, I40IW_DEBUG_AEQ
, "%s entered\n", __func__
);
1199 memset(&info
, 0, sizeof(info
));
1200 info
.ae_code
= I40IW_AE_LLP_RECEIVED_MPA_CRC_ERROR
;
1201 info
.generate_ae
= true;
1202 info
.ae_source
= 0x3;
1203 (void)i40iw_hw_flush_wqes(iwdev
, qp
, &info
, false);
1207 * i40iw_init_hash_desc - initialize hash for crc calculation
1208 * @desc: cryption type
1210 enum i40iw_status_code
i40iw_init_hash_desc(struct shash_desc
**desc
)
1212 struct crypto_shash
*tfm
;
1213 struct shash_desc
*tdesc
;
1215 tfm
= crypto_alloc_shash("crc32c", 0, 0);
1217 return I40IW_ERR_MPA_CRC
;
1219 tdesc
= kzalloc(sizeof(*tdesc
) + crypto_shash_descsize(tfm
),
1222 crypto_free_shash(tfm
);
1223 return I40IW_ERR_MPA_CRC
;
1232 * i40iw_free_hash_desc - free hash desc
1233 * @desc: to be freed
1235 void i40iw_free_hash_desc(struct shash_desc
*desc
)
1238 crypto_free_shash(desc
->tfm
);
1244 * i40iw_alloc_query_fpm_buf - allocate buffer for fpm
1245 * @dev: hardware control device structure
1246 * @mem: buffer ptr for fpm to be allocated
1247 * @return: memory allocation status
1249 enum i40iw_status_code
i40iw_alloc_query_fpm_buf(struct i40iw_sc_dev
*dev
,
1250 struct i40iw_dma_mem
*mem
)
1252 enum i40iw_status_code status
;
1253 struct i40iw_device
*iwdev
= (struct i40iw_device
*)dev
->back_dev
;
1255 status
= i40iw_obj_aligned_mem(iwdev
, mem
, I40IW_QUERY_FPM_BUF_SIZE
,
1256 I40IW_FPM_QUERY_BUF_ALIGNMENT_MASK
);
1261 * i40iw_ieq_check_mpacrc - check if mpa crc is OK
1262 * @desc: desc for hash
1263 * @addr: address of buffer for crc
1264 * @length: length of buffer
1265 * @value: value to be compared
1267 enum i40iw_status_code
i40iw_ieq_check_mpacrc(struct shash_desc
*desc
,
1274 enum i40iw_status_code ret_code
= 0;
1276 crypto_shash_init(desc
);
1277 ret
= crypto_shash_update(desc
, addr
, length
);
1279 crypto_shash_final(desc
, (u8
*)&crc
);
1281 i40iw_pr_err("mpa crc check fail\n");
1282 ret_code
= I40IW_ERR_MPA_CRC
;
1288 * i40iw_ieq_get_qp - get qp based on quad in puda buffer
1289 * @dev: hardware control device structure
1290 * @buf: receive puda buffer on exception q
1292 struct i40iw_sc_qp
*i40iw_ieq_get_qp(struct i40iw_sc_dev
*dev
,
1293 struct i40iw_puda_buf
*buf
)
1295 struct i40iw_device
*iwdev
= (struct i40iw_device
*)dev
->back_dev
;
1296 struct i40iw_qp
*iwqp
;
1297 struct i40iw_cm_node
*cm_node
;
1298 u32 loc_addr
[4], rem_addr
[4];
1299 u16 loc_port
, rem_port
;
1300 struct ipv6hdr
*ip6h
;
1301 struct iphdr
*iph
= (struct iphdr
*)buf
->iph
;
1302 struct tcphdr
*tcph
= (struct tcphdr
*)buf
->tcph
;
1304 if (iph
->version
== 4) {
1305 memset(loc_addr
, 0, sizeof(loc_addr
));
1306 loc_addr
[0] = ntohl(iph
->daddr
);
1307 memset(rem_addr
, 0, sizeof(rem_addr
));
1308 rem_addr
[0] = ntohl(iph
->saddr
);
1310 ip6h
= (struct ipv6hdr
*)buf
->iph
;
1311 i40iw_copy_ip_ntohl(loc_addr
, ip6h
->daddr
.in6_u
.u6_addr32
);
1312 i40iw_copy_ip_ntohl(rem_addr
, ip6h
->saddr
.in6_u
.u6_addr32
);
1314 loc_port
= ntohs(tcph
->dest
);
1315 rem_port
= ntohs(tcph
->source
);
1317 cm_node
= i40iw_find_node(&iwdev
->cm_core
, rem_port
, rem_addr
, loc_port
,
1321 iwqp
= cm_node
->iwqp
;
1322 return &iwqp
->sc_qp
;
1326 * i40iw_ieq_update_tcpip_info - update tcpip in the buffer
1327 * @buf: puda to update
1328 * @length: length of buffer
1329 * @seqnum: seq number for tcp
1331 void i40iw_ieq_update_tcpip_info(struct i40iw_puda_buf
*buf
, u16 length
, u32 seqnum
)
1333 struct tcphdr
*tcph
;
1337 u8
*addr
= (u8
*)buf
->mem
.va
;
1339 iphlen
= (buf
->ipv4
) ? 20 : 40;
1340 iph
= (struct iphdr
*)(addr
+ buf
->maclen
);
1341 tcph
= (struct tcphdr
*)(addr
+ buf
->maclen
+ iphlen
);
1342 packetsize
= length
+ buf
->tcphlen
+ iphlen
;
1344 iph
->tot_len
= htons(packetsize
);
1345 tcph
->seq
= htonl(seqnum
);
1349 * i40iw_puda_get_tcpip_info - get tcpip info from puda buffer
1350 * @info: to get information
1353 enum i40iw_status_code
i40iw_puda_get_tcpip_info(struct i40iw_puda_completion_info
*info
,
1354 struct i40iw_puda_buf
*buf
)
1357 struct ipv6hdr
*ip6h
;
1358 struct tcphdr
*tcph
;
1361 u8
*mem
= (u8
*)buf
->mem
.va
;
1362 struct ethhdr
*ethh
= (struct ethhdr
*)buf
->mem
.va
;
1364 if (ethh
->h_proto
== htons(0x8100)) {
1365 info
->vlan_valid
= true;
1366 buf
->vlan_id
= ntohs(((struct vlan_ethhdr
*)ethh
)->h_vlan_TCI
) & VLAN_VID_MASK
;
1368 buf
->maclen
= (info
->vlan_valid
) ? 18 : 14;
1369 iphlen
= (info
->l3proto
) ? 40 : 20;
1370 buf
->ipv4
= (info
->l3proto
) ? false : true;
1371 buf
->iph
= mem
+ buf
->maclen
;
1372 iph
= (struct iphdr
*)buf
->iph
;
1374 buf
->tcph
= buf
->iph
+ iphlen
;
1375 tcph
= (struct tcphdr
*)buf
->tcph
;
1378 pkt_len
= ntohs(iph
->tot_len
);
1380 ip6h
= (struct ipv6hdr
*)buf
->iph
;
1381 pkt_len
= ntohs(ip6h
->payload_len
) + iphlen
;
1384 buf
->totallen
= pkt_len
+ buf
->maclen
;
1386 if (info
->payload_len
< buf
->totallen
) {
1387 i40iw_pr_err("payload_len = 0x%x totallen expected0x%x\n",
1388 info
->payload_len
, buf
->totallen
);
1389 return I40IW_ERR_INVALID_SIZE
;
1392 buf
->tcphlen
= (tcph
->doff
) << 2;
1393 buf
->datalen
= pkt_len
- iphlen
- buf
->tcphlen
;
1394 buf
->data
= (buf
->datalen
) ? buf
->tcph
+ buf
->tcphlen
: NULL
;
1395 buf
->hdrlen
= buf
->maclen
+ iphlen
+ buf
->tcphlen
;
1396 buf
->seqnum
= ntohl(tcph
->seq
);
1401 * i40iw_hw_stats_timeout - Stats timer-handler which updates all HW stats
1402 * @vsi: pointer to the vsi structure
1404 static void i40iw_hw_stats_timeout(unsigned long vsi
)
1406 struct i40iw_sc_vsi
*sc_vsi
= (struct i40iw_sc_vsi
*)vsi
;
1407 struct i40iw_sc_dev
*pf_dev
= sc_vsi
->dev
;
1408 struct i40iw_vsi_pestat
*pf_devstat
= sc_vsi
->pestat
;
1409 struct i40iw_vsi_pestat
*vf_devstat
= NULL
;
1411 unsigned long flags
;
1414 i40iw_hw_stats_read_all(pf_devstat
, &pf_devstat
->hw_stats
);
1416 for (iw_vf_idx
= 0; iw_vf_idx
< I40IW_MAX_PE_ENABLED_VF_COUNT
; iw_vf_idx
++) {
1417 spin_lock_irqsave(&pf_devstat
->lock
, flags
);
1418 if (pf_dev
->vf_dev
[iw_vf_idx
]) {
1419 if (pf_dev
->vf_dev
[iw_vf_idx
]->stats_initialized
) {
1420 vf_devstat
= &pf_dev
->vf_dev
[iw_vf_idx
]->pestat
;
1421 i40iw_hw_stats_read_all(vf_devstat
, &vf_devstat
->hw_stats
);
1424 spin_unlock_irqrestore(&pf_devstat
->lock
, flags
);
1427 mod_timer(&pf_devstat
->stats_timer
,
1428 jiffies
+ msecs_to_jiffies(STATS_TIMER_DELAY
));
1432 * i40iw_hw_stats_start_timer - Start periodic stats timer
1433 * @vsi: pointer to the vsi structure
1435 void i40iw_hw_stats_start_timer(struct i40iw_sc_vsi
*vsi
)
1437 struct i40iw_vsi_pestat
*devstat
= vsi
->pestat
;
1439 init_timer(&devstat
->stats_timer
);
1440 devstat
->stats_timer
.function
= i40iw_hw_stats_timeout
;
1441 devstat
->stats_timer
.data
= (unsigned long)vsi
;
1442 mod_timer(&devstat
->stats_timer
,
1443 jiffies
+ msecs_to_jiffies(STATS_TIMER_DELAY
));
1447 * i40iw_hw_stats_stop_timer - Delete periodic stats timer
1448 * @vsi: pointer to the vsi structure
1450 void i40iw_hw_stats_stop_timer(struct i40iw_sc_vsi
*vsi
)
1452 struct i40iw_vsi_pestat
*devstat
= vsi
->pestat
;
1454 del_timer_sync(&devstat
->stats_timer
);