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
)
340 struct i40iw_device
*iwdev
= container_of(cqp
, struct i40iw_device
, cqp
);
343 if (cqp_request
->dynamic
) {
346 cqp_request
->request_done
= false;
347 cqp_request
->callback_fcn
= NULL
;
348 cqp_request
->waiting
= false;
350 spin_lock_irqsave(&cqp
->req_lock
, flags
);
351 list_add_tail(&cqp_request
->list
, &cqp
->cqp_avail_reqs
);
352 spin_unlock_irqrestore(&cqp
->req_lock
, flags
);
354 wake_up(&iwdev
->close_wq
);
358 * i40iw_put_cqp_request - dec ref count and free if 0
360 * @cqp_request: to be put back in cqp list
362 void i40iw_put_cqp_request(struct i40iw_cqp
*cqp
,
363 struct i40iw_cqp_request
*cqp_request
)
365 if (atomic_dec_and_test(&cqp_request
->refcount
))
366 i40iw_free_cqp_request(cqp
, cqp_request
);
370 * i40iw_free_pending_cqp_request -free pending cqp request objs
372 * @cqp_request: to be put back in cqp list
374 static void i40iw_free_pending_cqp_request(struct i40iw_cqp
*cqp
,
375 struct i40iw_cqp_request
*cqp_request
)
377 struct i40iw_device
*iwdev
= container_of(cqp
, struct i40iw_device
, cqp
);
379 if (cqp_request
->waiting
) {
380 cqp_request
->compl_info
.error
= true;
381 cqp_request
->request_done
= true;
382 wake_up(&cqp_request
->waitq
);
384 i40iw_put_cqp_request(cqp
, cqp_request
);
385 wait_event_timeout(iwdev
->close_wq
,
386 !atomic_read(&cqp_request
->refcount
),
391 * i40iw_cleanup_pending_cqp_op - clean-up cqp with no completions
392 * @iwdev: iwarp device
394 void i40iw_cleanup_pending_cqp_op(struct i40iw_device
*iwdev
)
396 struct i40iw_sc_dev
*dev
= &iwdev
->sc_dev
;
397 struct i40iw_cqp
*cqp
= &iwdev
->cqp
;
398 struct i40iw_cqp_request
*cqp_request
= NULL
;
399 struct cqp_commands_info
*pcmdinfo
= NULL
;
400 u32 i
, pending_work
, wqe_idx
;
402 pending_work
= I40IW_RING_WORK_AVAILABLE(cqp
->sc_cqp
.sq_ring
);
403 wqe_idx
= I40IW_RING_GETCURRENT_TAIL(cqp
->sc_cqp
.sq_ring
);
404 for (i
= 0; i
< pending_work
; i
++) {
405 cqp_request
= (struct i40iw_cqp_request
*)(unsigned long)cqp
->scratch_array
[wqe_idx
];
407 i40iw_free_pending_cqp_request(cqp
, cqp_request
);
408 wqe_idx
= (wqe_idx
+ 1) % I40IW_RING_GETSIZE(cqp
->sc_cqp
.sq_ring
);
411 while (!list_empty(&dev
->cqp_cmd_head
)) {
412 pcmdinfo
= (struct cqp_commands_info
*)i40iw_remove_head(&dev
->cqp_cmd_head
);
413 cqp_request
= container_of(pcmdinfo
, struct i40iw_cqp_request
, info
);
415 i40iw_free_pending_cqp_request(cqp
, cqp_request
);
420 * i40iw_free_qp - callback after destroy cqp completes
421 * @cqp_request: cqp request for destroy qp
424 static void i40iw_free_qp(struct i40iw_cqp_request
*cqp_request
, u32 num
)
426 struct i40iw_sc_qp
*qp
= (struct i40iw_sc_qp
*)cqp_request
->param
;
427 struct i40iw_qp
*iwqp
= (struct i40iw_qp
*)qp
->back_qp
;
428 struct i40iw_device
*iwdev
;
429 u32 qp_num
= iwqp
->ibqp
.qp_num
;
433 i40iw_rem_pdusecount(iwqp
->iwpd
, iwdev
);
434 i40iw_free_qp_resources(iwdev
, iwqp
, qp_num
);
435 i40iw_rem_devusecount(iwdev
);
439 * i40iw_wait_event - wait for completion
440 * @iwdev: iwarp device
441 * @cqp_request: cqp request to wait
443 static int i40iw_wait_event(struct i40iw_device
*iwdev
,
444 struct i40iw_cqp_request
*cqp_request
)
446 struct cqp_commands_info
*info
= &cqp_request
->info
;
447 struct i40iw_cqp
*iwcqp
= &iwdev
->cqp
;
448 bool cqp_error
= false;
452 timeout_ret
= wait_event_timeout(cqp_request
->waitq
,
453 cqp_request
->request_done
,
454 I40IW_EVENT_TIMEOUT
);
456 i40iw_pr_err("error cqp command 0x%x timed out ret = %d\n",
457 info
->cqp_cmd
, timeout_ret
);
461 i40iw_request_reset(iwdev
);
465 cqp_error
= cqp_request
->compl_info
.error
;
467 i40iw_pr_err("error cqp command 0x%x completion maj = 0x%x min=0x%x\n",
468 info
->cqp_cmd
, cqp_request
->compl_info
.maj_err_code
,
469 cqp_request
->compl_info
.min_err_code
);
474 i40iw_put_cqp_request(iwcqp
, cqp_request
);
479 * i40iw_handle_cqp_op - process cqp command
480 * @iwdev: iwarp device
481 * @cqp_request: cqp request to process
483 enum i40iw_status_code
i40iw_handle_cqp_op(struct i40iw_device
*iwdev
,
484 struct i40iw_cqp_request
487 struct i40iw_sc_dev
*dev
= &iwdev
->sc_dev
;
488 enum i40iw_status_code status
;
489 struct cqp_commands_info
*info
= &cqp_request
->info
;
493 i40iw_free_cqp_request(&iwdev
->cqp
, cqp_request
);
494 return I40IW_ERR_CQP_COMPL_ERROR
;
497 status
= i40iw_process_cqp_cmd(dev
, info
);
499 i40iw_pr_err("error cqp command 0x%x failed\n", info
->cqp_cmd
);
500 i40iw_free_cqp_request(&iwdev
->cqp
, cqp_request
);
503 if (cqp_request
->waiting
)
504 err_code
= i40iw_wait_event(iwdev
, cqp_request
);
506 status
= I40IW_ERR_CQP_COMPL_ERROR
;
511 * i40iw_add_devusecount - add dev refcount
512 * @iwdev: dev for refcount
514 void i40iw_add_devusecount(struct i40iw_device
*iwdev
)
516 atomic64_inc(&iwdev
->use_count
);
520 * i40iw_rem_devusecount - decrement refcount for dev
523 void i40iw_rem_devusecount(struct i40iw_device
*iwdev
)
525 if (!atomic64_dec_and_test(&iwdev
->use_count
))
527 wake_up(&iwdev
->close_wq
);
531 * i40iw_add_pdusecount - add pd refcount
532 * @iwpd: pd for refcount
534 void i40iw_add_pdusecount(struct i40iw_pd
*iwpd
)
536 atomic_inc(&iwpd
->usecount
);
540 * i40iw_rem_pdusecount - decrement refcount for pd and free if 0
541 * @iwpd: pd for refcount
542 * @iwdev: iwarp device
544 void i40iw_rem_pdusecount(struct i40iw_pd
*iwpd
, struct i40iw_device
*iwdev
)
546 if (!atomic_dec_and_test(&iwpd
->usecount
))
548 i40iw_free_resource(iwdev
, iwdev
->allocated_pds
, iwpd
->sc_pd
.pd_id
);
553 * i40iw_add_ref - add refcount for qp
556 void i40iw_add_ref(struct ib_qp
*ibqp
)
558 struct i40iw_qp
*iwqp
= (struct i40iw_qp
*)ibqp
;
560 atomic_inc(&iwqp
->refcount
);
564 * i40iw_rem_ref - rem refcount for qp and free if 0
567 void i40iw_rem_ref(struct ib_qp
*ibqp
)
569 struct i40iw_qp
*iwqp
;
570 enum i40iw_status_code status
;
571 struct i40iw_cqp_request
*cqp_request
;
572 struct cqp_commands_info
*cqp_info
;
573 struct i40iw_device
*iwdev
;
577 iwqp
= to_iwqp(ibqp
);
579 spin_lock_irqsave(&iwdev
->qptable_lock
, flags
);
580 if (!atomic_dec_and_test(&iwqp
->refcount
)) {
581 spin_unlock_irqrestore(&iwdev
->qptable_lock
, flags
);
585 qp_num
= iwqp
->ibqp
.qp_num
;
586 iwdev
->qp_table
[qp_num
] = NULL
;
587 spin_unlock_irqrestore(&iwdev
->qptable_lock
, flags
);
588 cqp_request
= i40iw_get_cqp_request(&iwdev
->cqp
, false);
592 cqp_request
->callback_fcn
= i40iw_free_qp
;
593 cqp_request
->param
= (void *)&iwqp
->sc_qp
;
594 cqp_info
= &cqp_request
->info
;
595 cqp_info
->cqp_cmd
= OP_QP_DESTROY
;
596 cqp_info
->post_sq
= 1;
597 cqp_info
->in
.u
.qp_destroy
.qp
= &iwqp
->sc_qp
;
598 cqp_info
->in
.u
.qp_destroy
.scratch
= (uintptr_t)cqp_request
;
599 cqp_info
->in
.u
.qp_destroy
.remove_hash_idx
= true;
600 status
= i40iw_handle_cqp_op(iwdev
, cqp_request
);
604 i40iw_rem_pdusecount(iwqp
->iwpd
, iwdev
);
605 i40iw_free_qp_resources(iwdev
, iwqp
, qp_num
);
606 i40iw_rem_devusecount(iwdev
);
610 * i40iw_get_qp - get qp address
611 * @device: iwarp device
614 struct ib_qp
*i40iw_get_qp(struct ib_device
*device
, int qpn
)
616 struct i40iw_device
*iwdev
= to_iwdev(device
);
618 if ((qpn
< IW_FIRST_QPN
) || (qpn
>= iwdev
->max_qp
))
621 return &iwdev
->qp_table
[qpn
]->ibqp
;
625 * i40iw_debug_buf - print debug msg and buffer is mask set
626 * @dev: hardware control device structure
627 * @mask: mask to compare if to print debug buffer
628 * @buf: points buffer addr
629 * @size: saize of buffer to print
631 void i40iw_debug_buf(struct i40iw_sc_dev
*dev
,
632 enum i40iw_debug_flag mask
,
639 if (!(dev
->debug_mask
& mask
))
641 i40iw_debug(dev
, mask
, "%s\n", desc
);
642 i40iw_debug(dev
, mask
, "starting address virt=%p phy=%llxh\n", buf
,
643 (unsigned long long)virt_to_phys(buf
));
645 for (i
= 0; i
< size
; i
+= 8)
646 i40iw_debug(dev
, mask
, "index %03d val: %016llx\n", i
, buf
[i
/ 8]);
650 * i40iw_get_hw_addr - return hw addr
651 * @par: points to shared dev
653 u8 __iomem
*i40iw_get_hw_addr(void *par
)
655 struct i40iw_sc_dev
*dev
= (struct i40iw_sc_dev
*)par
;
657 return dev
->hw
->hw_addr
;
661 * i40iw_remove_head - return head entry and remove from list
662 * @list: list for entry
664 void *i40iw_remove_head(struct list_head
*list
)
666 struct list_head
*entry
;
668 if (list_empty(list
))
671 entry
= (void *)list
->next
;
673 return (void *)entry
;
677 * i40iw_allocate_dma_mem - Memory alloc helper fn
678 * @hw: pointer to the HW structure
679 * @mem: ptr to mem struct to fill out
680 * @size: size of memory requested
681 * @alignment: what to align the allocation to
683 enum i40iw_status_code
i40iw_allocate_dma_mem(struct i40iw_hw
*hw
,
684 struct i40iw_dma_mem
*mem
,
688 struct pci_dev
*pcidev
= (struct pci_dev
*)hw
->dev_context
;
691 return I40IW_ERR_PARAM
;
692 mem
->size
= ALIGN(size
, alignment
);
693 mem
->va
= dma_zalloc_coherent(&pcidev
->dev
, mem
->size
,
694 (dma_addr_t
*)&mem
->pa
, GFP_KERNEL
);
696 return I40IW_ERR_NO_MEMORY
;
701 * i40iw_free_dma_mem - Memory free helper fn
702 * @hw: pointer to the HW structure
703 * @mem: ptr to mem struct to free
705 void i40iw_free_dma_mem(struct i40iw_hw
*hw
, struct i40iw_dma_mem
*mem
)
707 struct pci_dev
*pcidev
= (struct pci_dev
*)hw
->dev_context
;
709 if (!mem
|| !mem
->va
)
712 dma_free_coherent(&pcidev
->dev
, mem
->size
,
713 mem
->va
, (dma_addr_t
)mem
->pa
);
718 * i40iw_allocate_virt_mem - virtual memory alloc helper fn
719 * @hw: pointer to the HW structure
720 * @mem: ptr to mem struct to fill out
721 * @size: size of memory requested
723 enum i40iw_status_code
i40iw_allocate_virt_mem(struct i40iw_hw
*hw
,
724 struct i40iw_virt_mem
*mem
,
728 return I40IW_ERR_PARAM
;
731 mem
->va
= kzalloc(size
, GFP_KERNEL
);
736 return I40IW_ERR_NO_MEMORY
;
740 * i40iw_free_virt_mem - virtual memory free helper fn
741 * @hw: pointer to the HW structure
742 * @mem: ptr to mem struct to free
744 enum i40iw_status_code
i40iw_free_virt_mem(struct i40iw_hw
*hw
,
745 struct i40iw_virt_mem
*mem
)
748 return I40IW_ERR_PARAM
;
750 * mem->va points to the parent of mem, so both mem and mem->va
751 * can not be touched once mem->va is freed
758 * i40iw_cqp_sds_cmd - create cqp command for sd
759 * @dev: hardware control device structure
760 * @sd_info: information for sd cqp
763 enum i40iw_status_code
i40iw_cqp_sds_cmd(struct i40iw_sc_dev
*dev
,
764 struct i40iw_update_sds_info
*sdinfo
)
766 enum i40iw_status_code status
;
767 struct i40iw_cqp_request
*cqp_request
;
768 struct cqp_commands_info
*cqp_info
;
769 struct i40iw_device
*iwdev
= (struct i40iw_device
*)dev
->back_dev
;
771 cqp_request
= i40iw_get_cqp_request(&iwdev
->cqp
, true);
773 return I40IW_ERR_NO_MEMORY
;
774 cqp_info
= &cqp_request
->info
;
775 memcpy(&cqp_info
->in
.u
.update_pe_sds
.info
, sdinfo
,
776 sizeof(cqp_info
->in
.u
.update_pe_sds
.info
));
777 cqp_info
->cqp_cmd
= OP_UPDATE_PE_SDS
;
778 cqp_info
->post_sq
= 1;
779 cqp_info
->in
.u
.update_pe_sds
.dev
= dev
;
780 cqp_info
->in
.u
.update_pe_sds
.scratch
= (uintptr_t)cqp_request
;
781 status
= i40iw_handle_cqp_op(iwdev
, cqp_request
);
783 i40iw_pr_err("CQP-OP Update SD's fail");
788 * i40iw_qp_suspend_resume - cqp command for suspend/resume
789 * @dev: hardware control device structure
790 * @qp: hardware control qp
791 * @suspend: flag if suspend or resume
793 void i40iw_qp_suspend_resume(struct i40iw_sc_dev
*dev
, struct i40iw_sc_qp
*qp
, bool suspend
)
795 struct i40iw_device
*iwdev
= (struct i40iw_device
*)dev
->back_dev
;
796 struct i40iw_cqp_request
*cqp_request
;
797 struct i40iw_sc_cqp
*cqp
= dev
->cqp
;
798 struct cqp_commands_info
*cqp_info
;
799 enum i40iw_status_code status
;
801 cqp_request
= i40iw_get_cqp_request(&iwdev
->cqp
, false);
805 cqp_info
= &cqp_request
->info
;
806 cqp_info
->cqp_cmd
= (suspend
) ? OP_SUSPEND
: OP_RESUME
;
807 cqp_info
->in
.u
.suspend_resume
.cqp
= cqp
;
808 cqp_info
->in
.u
.suspend_resume
.qp
= qp
;
809 cqp_info
->in
.u
.suspend_resume
.scratch
= (uintptr_t)cqp_request
;
810 status
= i40iw_handle_cqp_op(iwdev
, cqp_request
);
812 i40iw_pr_err("CQP-OP QP Suspend/Resume fail");
816 * i40iw_term_modify_qp - modify qp for term message
817 * @qp: hardware control qp
818 * @next_state: qp's next state
819 * @term: terminate code
822 void i40iw_term_modify_qp(struct i40iw_sc_qp
*qp
, u8 next_state
, u8 term
, u8 term_len
)
824 struct i40iw_qp
*iwqp
;
826 iwqp
= (struct i40iw_qp
*)qp
->back_qp
;
827 i40iw_next_iw_state(iwqp
, next_state
, 0, term
, term_len
);
831 * i40iw_terminate_done - after terminate is completed
832 * @qp: hardware control qp
833 * @timeout_occurred: indicates if terminate timer expired
835 void i40iw_terminate_done(struct i40iw_sc_qp
*qp
, int timeout_occurred
)
837 struct i40iw_qp
*iwqp
;
838 u32 next_iwarp_state
= I40IW_QP_STATE_ERROR
;
843 iwqp
= (struct i40iw_qp
*)qp
->back_qp
;
844 spin_lock_irqsave(&iwqp
->lock
, flags
);
845 if (iwqp
->hte_added
) {
849 first_time
= !(qp
->term_flags
& I40IW_TERM_DONE
);
850 qp
->term_flags
|= I40IW_TERM_DONE
;
851 spin_unlock_irqrestore(&iwqp
->lock
, flags
);
853 if (!timeout_occurred
)
854 i40iw_terminate_del_timer(qp
);
856 next_iwarp_state
= I40IW_QP_STATE_CLOSING
;
858 i40iw_next_iw_state(iwqp
, next_iwarp_state
, hte
, 0, 0);
859 i40iw_cm_disconn(iwqp
);
864 * i40iw_terminate_imeout - timeout happened
865 * @context: points to iwarp qp
867 static void i40iw_terminate_timeout(unsigned long context
)
869 struct i40iw_qp
*iwqp
= (struct i40iw_qp
*)context
;
870 struct i40iw_sc_qp
*qp
= (struct i40iw_sc_qp
*)&iwqp
->sc_qp
;
872 i40iw_terminate_done(qp
, 1);
873 i40iw_rem_ref(&iwqp
->ibqp
);
877 * i40iw_terminate_start_timer - start terminate timeout
878 * @qp: hardware control qp
880 void i40iw_terminate_start_timer(struct i40iw_sc_qp
*qp
)
882 struct i40iw_qp
*iwqp
;
884 iwqp
= (struct i40iw_qp
*)qp
->back_qp
;
885 i40iw_add_ref(&iwqp
->ibqp
);
886 setup_timer(&iwqp
->terminate_timer
, i40iw_terminate_timeout
,
887 (unsigned long)iwqp
);
888 iwqp
->terminate_timer
.expires
= jiffies
+ HZ
;
889 add_timer(&iwqp
->terminate_timer
);
893 * i40iw_terminate_del_timer - delete terminate timeout
894 * @qp: hardware control qp
896 void i40iw_terminate_del_timer(struct i40iw_sc_qp
*qp
)
898 struct i40iw_qp
*iwqp
;
900 iwqp
= (struct i40iw_qp
*)qp
->back_qp
;
901 if (del_timer(&iwqp
->terminate_timer
))
902 i40iw_rem_ref(&iwqp
->ibqp
);
906 * i40iw_cqp_generic_worker - generic worker for cqp
907 * @work: work pointer
909 static void i40iw_cqp_generic_worker(struct work_struct
*work
)
911 struct i40iw_virtchnl_work_info
*work_info
=
912 &((struct virtchnl_work
*)work
)->work_info
;
914 if (work_info
->worker_vf_dev
)
915 work_info
->callback_fcn(work_info
->worker_vf_dev
);
919 * i40iw_cqp_spawn_worker - spawn worket thread
920 * @iwdev: device struct pointer
921 * @work_info: work request info
922 * @iw_vf_idx: virtual function index
924 void i40iw_cqp_spawn_worker(struct i40iw_sc_dev
*dev
,
925 struct i40iw_virtchnl_work_info
*work_info
,
928 struct virtchnl_work
*work
;
929 struct i40iw_device
*iwdev
= (struct i40iw_device
*)dev
->back_dev
;
931 work
= &iwdev
->virtchnl_w
[iw_vf_idx
];
932 memcpy(&work
->work_info
, work_info
, sizeof(*work_info
));
933 INIT_WORK(&work
->work
, i40iw_cqp_generic_worker
);
934 queue_work(iwdev
->virtchnl_wq
, &work
->work
);
938 * i40iw_cqp_manage_hmc_fcn_worker -
939 * @work: work pointer for hmc info
941 static void i40iw_cqp_manage_hmc_fcn_worker(struct work_struct
*work
)
943 struct i40iw_cqp_request
*cqp_request
=
944 ((struct virtchnl_work
*)work
)->cqp_request
;
945 struct i40iw_ccq_cqe_info ccq_cqe_info
;
946 struct i40iw_hmc_fcn_info
*hmcfcninfo
=
947 &cqp_request
->info
.in
.u
.manage_hmc_pm
.info
;
948 struct i40iw_device
*iwdev
=
949 (struct i40iw_device
*)cqp_request
->info
.in
.u
.manage_hmc_pm
.dev
->back_dev
;
951 ccq_cqe_info
.cqp
= NULL
;
952 ccq_cqe_info
.maj_err_code
= cqp_request
->compl_info
.maj_err_code
;
953 ccq_cqe_info
.min_err_code
= cqp_request
->compl_info
.min_err_code
;
954 ccq_cqe_info
.op_code
= cqp_request
->compl_info
.op_code
;
955 ccq_cqe_info
.op_ret_val
= cqp_request
->compl_info
.op_ret_val
;
956 ccq_cqe_info
.scratch
= 0;
957 ccq_cqe_info
.error
= cqp_request
->compl_info
.error
;
958 hmcfcninfo
->callback_fcn(cqp_request
->info
.in
.u
.manage_hmc_pm
.dev
,
959 hmcfcninfo
->cqp_callback_param
, &ccq_cqe_info
);
960 i40iw_put_cqp_request(&iwdev
->cqp
, cqp_request
);
964 * i40iw_cqp_manage_hmc_fcn_callback - called function after cqp completion
965 * @cqp_request: cqp request info struct for hmc fun
966 * @unused: unused param of callback
968 static void i40iw_cqp_manage_hmc_fcn_callback(struct i40iw_cqp_request
*cqp_request
,
971 struct virtchnl_work
*work
;
972 struct i40iw_hmc_fcn_info
*hmcfcninfo
=
973 &cqp_request
->info
.in
.u
.manage_hmc_pm
.info
;
974 struct i40iw_device
*iwdev
=
975 (struct i40iw_device
*)cqp_request
->info
.in
.u
.manage_hmc_pm
.dev
->
978 if (hmcfcninfo
&& hmcfcninfo
->callback_fcn
) {
979 i40iw_debug(&iwdev
->sc_dev
, I40IW_DEBUG_HMC
, "%s1\n", __func__
);
980 atomic_inc(&cqp_request
->refcount
);
981 work
= &iwdev
->virtchnl_w
[hmcfcninfo
->iw_vf_idx
];
982 work
->cqp_request
= cqp_request
;
983 INIT_WORK(&work
->work
, i40iw_cqp_manage_hmc_fcn_worker
);
984 queue_work(iwdev
->virtchnl_wq
, &work
->work
);
985 i40iw_debug(&iwdev
->sc_dev
, I40IW_DEBUG_HMC
, "%s2\n", __func__
);
987 i40iw_debug(&iwdev
->sc_dev
, I40IW_DEBUG_HMC
, "%s: Something wrong\n", __func__
);
992 * i40iw_cqp_manage_hmc_fcn_cmd - issue cqp command to manage hmc
993 * @dev: hardware control device structure
994 * @hmcfcninfo: info for hmc
996 enum i40iw_status_code
i40iw_cqp_manage_hmc_fcn_cmd(struct i40iw_sc_dev
*dev
,
997 struct i40iw_hmc_fcn_info
*hmcfcninfo
)
999 enum i40iw_status_code status
;
1000 struct i40iw_cqp_request
*cqp_request
;
1001 struct cqp_commands_info
*cqp_info
;
1002 struct i40iw_device
*iwdev
= (struct i40iw_device
*)dev
->back_dev
;
1004 i40iw_debug(&iwdev
->sc_dev
, I40IW_DEBUG_HMC
, "%s\n", __func__
);
1005 cqp_request
= i40iw_get_cqp_request(&iwdev
->cqp
, false);
1007 return I40IW_ERR_NO_MEMORY
;
1008 cqp_info
= &cqp_request
->info
;
1009 cqp_request
->callback_fcn
= i40iw_cqp_manage_hmc_fcn_callback
;
1010 cqp_request
->param
= hmcfcninfo
;
1011 memcpy(&cqp_info
->in
.u
.manage_hmc_pm
.info
, hmcfcninfo
,
1012 sizeof(*hmcfcninfo
));
1013 cqp_info
->in
.u
.manage_hmc_pm
.dev
= dev
;
1014 cqp_info
->cqp_cmd
= OP_MANAGE_HMC_PM_FUNC_TABLE
;
1015 cqp_info
->post_sq
= 1;
1016 cqp_info
->in
.u
.manage_hmc_pm
.scratch
= (uintptr_t)cqp_request
;
1017 status
= i40iw_handle_cqp_op(iwdev
, cqp_request
);
1019 i40iw_pr_err("CQP-OP Manage HMC fail");
1024 * i40iw_cqp_query_fpm_values_cmd - send cqp command for fpm
1025 * @iwdev: function device struct
1026 * @values_mem: buffer for fpm
1027 * @hmc_fn_id: function id for fpm
1029 enum i40iw_status_code
i40iw_cqp_query_fpm_values_cmd(struct i40iw_sc_dev
*dev
,
1030 struct i40iw_dma_mem
*values_mem
,
1033 enum i40iw_status_code status
;
1034 struct i40iw_cqp_request
*cqp_request
;
1035 struct cqp_commands_info
*cqp_info
;
1036 struct i40iw_device
*iwdev
= (struct i40iw_device
*)dev
->back_dev
;
1038 cqp_request
= i40iw_get_cqp_request(&iwdev
->cqp
, true);
1040 return I40IW_ERR_NO_MEMORY
;
1041 cqp_info
= &cqp_request
->info
;
1042 cqp_request
->param
= NULL
;
1043 cqp_info
->in
.u
.query_fpm_values
.cqp
= dev
->cqp
;
1044 cqp_info
->in
.u
.query_fpm_values
.fpm_values_pa
= values_mem
->pa
;
1045 cqp_info
->in
.u
.query_fpm_values
.fpm_values_va
= values_mem
->va
;
1046 cqp_info
->in
.u
.query_fpm_values
.hmc_fn_id
= hmc_fn_id
;
1047 cqp_info
->cqp_cmd
= OP_QUERY_FPM_VALUES
;
1048 cqp_info
->post_sq
= 1;
1049 cqp_info
->in
.u
.query_fpm_values
.scratch
= (uintptr_t)cqp_request
;
1050 status
= i40iw_handle_cqp_op(iwdev
, cqp_request
);
1052 i40iw_pr_err("CQP-OP Query FPM fail");
1057 * i40iw_cqp_commit_fpm_values_cmd - commit fpm values in hw
1058 * @dev: hardware control device structure
1059 * @values_mem: buffer with fpm values
1060 * @hmc_fn_id: function id for fpm
1062 enum i40iw_status_code
i40iw_cqp_commit_fpm_values_cmd(struct i40iw_sc_dev
*dev
,
1063 struct i40iw_dma_mem
*values_mem
,
1066 enum i40iw_status_code status
;
1067 struct i40iw_cqp_request
*cqp_request
;
1068 struct cqp_commands_info
*cqp_info
;
1069 struct i40iw_device
*iwdev
= (struct i40iw_device
*)dev
->back_dev
;
1071 cqp_request
= i40iw_get_cqp_request(&iwdev
->cqp
, true);
1073 return I40IW_ERR_NO_MEMORY
;
1074 cqp_info
= &cqp_request
->info
;
1075 cqp_request
->param
= NULL
;
1076 cqp_info
->in
.u
.commit_fpm_values
.cqp
= dev
->cqp
;
1077 cqp_info
->in
.u
.commit_fpm_values
.fpm_values_pa
= values_mem
->pa
;
1078 cqp_info
->in
.u
.commit_fpm_values
.fpm_values_va
= values_mem
->va
;
1079 cqp_info
->in
.u
.commit_fpm_values
.hmc_fn_id
= hmc_fn_id
;
1080 cqp_info
->cqp_cmd
= OP_COMMIT_FPM_VALUES
;
1081 cqp_info
->post_sq
= 1;
1082 cqp_info
->in
.u
.commit_fpm_values
.scratch
= (uintptr_t)cqp_request
;
1083 status
= i40iw_handle_cqp_op(iwdev
, cqp_request
);
1085 i40iw_pr_err("CQP-OP Commit FPM fail");
1090 * i40iw_vf_wait_vchnl_resp - wait for channel msg
1091 * @iwdev: function's device struct
1093 enum i40iw_status_code
i40iw_vf_wait_vchnl_resp(struct i40iw_sc_dev
*dev
)
1095 struct i40iw_device
*iwdev
= dev
->back_dev
;
1098 i40iw_debug(dev
, I40IW_DEBUG_VIRT
, "%s[%u] dev %p, iwdev %p\n",
1099 __func__
, __LINE__
, dev
, iwdev
);
1101 atomic_set(&iwdev
->vchnl_msgs
, 2);
1102 timeout_ret
= wait_event_timeout(iwdev
->vchnl_waitq
,
1103 (atomic_read(&iwdev
->vchnl_msgs
) == 1),
1104 I40IW_VCHNL_EVENT_TIMEOUT
);
1105 atomic_dec(&iwdev
->vchnl_msgs
);
1107 i40iw_pr_err("virt channel completion timeout = 0x%x\n", timeout_ret
);
1108 atomic_set(&iwdev
->vchnl_msgs
, 0);
1109 dev
->vchnl_up
= false;
1110 return I40IW_ERR_TIMEOUT
;
1112 wake_up(&dev
->vf_reqs
);
1117 * i40iw_cqp_cq_create_cmd - create a cq for the cqp
1118 * @dev: device pointer
1119 * @cq: pointer to created cq
1121 enum i40iw_status_code
i40iw_cqp_cq_create_cmd(struct i40iw_sc_dev
*dev
,
1122 struct i40iw_sc_cq
*cq
)
1124 struct i40iw_device
*iwdev
= (struct i40iw_device
*)dev
->back_dev
;
1125 struct i40iw_cqp
*iwcqp
= &iwdev
->cqp
;
1126 struct i40iw_cqp_request
*cqp_request
;
1127 struct cqp_commands_info
*cqp_info
;
1128 enum i40iw_status_code status
;
1130 cqp_request
= i40iw_get_cqp_request(iwcqp
, true);
1132 return I40IW_ERR_NO_MEMORY
;
1134 cqp_info
= &cqp_request
->info
;
1135 cqp_info
->cqp_cmd
= OP_CQ_CREATE
;
1136 cqp_info
->post_sq
= 1;
1137 cqp_info
->in
.u
.cq_create
.cq
= cq
;
1138 cqp_info
->in
.u
.cq_create
.scratch
= (uintptr_t)cqp_request
;
1139 status
= i40iw_handle_cqp_op(iwdev
, cqp_request
);
1141 i40iw_pr_err("CQP-OP Create QP fail");
1147 * i40iw_cqp_qp_create_cmd - create a qp for the cqp
1148 * @dev: device pointer
1149 * @qp: pointer to created qp
1151 enum i40iw_status_code
i40iw_cqp_qp_create_cmd(struct i40iw_sc_dev
*dev
,
1152 struct i40iw_sc_qp
*qp
)
1154 struct i40iw_device
*iwdev
= (struct i40iw_device
*)dev
->back_dev
;
1155 struct i40iw_cqp
*iwcqp
= &iwdev
->cqp
;
1156 struct i40iw_cqp_request
*cqp_request
;
1157 struct cqp_commands_info
*cqp_info
;
1158 struct i40iw_create_qp_info
*qp_info
;
1159 enum i40iw_status_code status
;
1161 cqp_request
= i40iw_get_cqp_request(iwcqp
, true);
1163 return I40IW_ERR_NO_MEMORY
;
1165 cqp_info
= &cqp_request
->info
;
1166 qp_info
= &cqp_request
->info
.in
.u
.qp_create
.info
;
1168 memset(qp_info
, 0, sizeof(*qp_info
));
1170 qp_info
->cq_num_valid
= true;
1171 qp_info
->next_iwarp_state
= I40IW_QP_STATE_RTS
;
1173 cqp_info
->cqp_cmd
= OP_QP_CREATE
;
1174 cqp_info
->post_sq
= 1;
1175 cqp_info
->in
.u
.qp_create
.qp
= qp
;
1176 cqp_info
->in
.u
.qp_create
.scratch
= (uintptr_t)cqp_request
;
1177 status
= i40iw_handle_cqp_op(iwdev
, cqp_request
);
1179 i40iw_pr_err("CQP-OP QP create fail");
1184 * i40iw_cqp_cq_destroy_cmd - destroy the cqp cq
1185 * @dev: device pointer
1186 * @cq: pointer to cq
1188 void i40iw_cqp_cq_destroy_cmd(struct i40iw_sc_dev
*dev
, struct i40iw_sc_cq
*cq
)
1190 struct i40iw_device
*iwdev
= (struct i40iw_device
*)dev
->back_dev
;
1192 i40iw_cq_wq_destroy(iwdev
, cq
);
1196 * i40iw_cqp_qp_destroy_cmd - destroy the cqp
1197 * @dev: device pointer
1198 * @qp: pointer to qp
1200 void i40iw_cqp_qp_destroy_cmd(struct i40iw_sc_dev
*dev
, struct i40iw_sc_qp
*qp
)
1202 struct i40iw_device
*iwdev
= (struct i40iw_device
*)dev
->back_dev
;
1203 struct i40iw_cqp
*iwcqp
= &iwdev
->cqp
;
1204 struct i40iw_cqp_request
*cqp_request
;
1205 struct cqp_commands_info
*cqp_info
;
1206 enum i40iw_status_code status
;
1208 cqp_request
= i40iw_get_cqp_request(iwcqp
, true);
1212 cqp_info
= &cqp_request
->info
;
1213 memset(cqp_info
, 0, sizeof(*cqp_info
));
1215 cqp_info
->cqp_cmd
= OP_QP_DESTROY
;
1216 cqp_info
->post_sq
= 1;
1217 cqp_info
->in
.u
.qp_destroy
.qp
= qp
;
1218 cqp_info
->in
.u
.qp_destroy
.scratch
= (uintptr_t)cqp_request
;
1219 cqp_info
->in
.u
.qp_destroy
.remove_hash_idx
= true;
1220 status
= i40iw_handle_cqp_op(iwdev
, cqp_request
);
1222 i40iw_pr_err("CQP QP_DESTROY fail");
1227 * i40iw_ieq_mpa_crc_ae - generate AE for crc error
1228 * @dev: hardware control device structure
1229 * @qp: hardware control qp
1231 void i40iw_ieq_mpa_crc_ae(struct i40iw_sc_dev
*dev
, struct i40iw_sc_qp
*qp
)
1233 struct i40iw_qp_flush_info info
;
1234 struct i40iw_device
*iwdev
= (struct i40iw_device
*)dev
->back_dev
;
1236 i40iw_debug(dev
, I40IW_DEBUG_AEQ
, "%s entered\n", __func__
);
1237 memset(&info
, 0, sizeof(info
));
1238 info
.ae_code
= I40IW_AE_LLP_RECEIVED_MPA_CRC_ERROR
;
1239 info
.generate_ae
= true;
1240 info
.ae_source
= 0x3;
1241 (void)i40iw_hw_flush_wqes(iwdev
, qp
, &info
, false);
1245 * i40iw_init_hash_desc - initialize hash for crc calculation
1246 * @desc: cryption type
1248 enum i40iw_status_code
i40iw_init_hash_desc(struct shash_desc
**desc
)
1250 struct crypto_shash
*tfm
;
1251 struct shash_desc
*tdesc
;
1253 tfm
= crypto_alloc_shash("crc32c", 0, 0);
1255 return I40IW_ERR_MPA_CRC
;
1257 tdesc
= kzalloc(sizeof(*tdesc
) + crypto_shash_descsize(tfm
),
1260 crypto_free_shash(tfm
);
1261 return I40IW_ERR_MPA_CRC
;
1270 * i40iw_free_hash_desc - free hash desc
1271 * @desc: to be freed
1273 void i40iw_free_hash_desc(struct shash_desc
*desc
)
1276 crypto_free_shash(desc
->tfm
);
1282 * i40iw_alloc_query_fpm_buf - allocate buffer for fpm
1283 * @dev: hardware control device structure
1284 * @mem: buffer ptr for fpm to be allocated
1285 * @return: memory allocation status
1287 enum i40iw_status_code
i40iw_alloc_query_fpm_buf(struct i40iw_sc_dev
*dev
,
1288 struct i40iw_dma_mem
*mem
)
1290 enum i40iw_status_code status
;
1291 struct i40iw_device
*iwdev
= (struct i40iw_device
*)dev
->back_dev
;
1293 status
= i40iw_obj_aligned_mem(iwdev
, mem
, I40IW_QUERY_FPM_BUF_SIZE
,
1294 I40IW_FPM_QUERY_BUF_ALIGNMENT_MASK
);
1299 * i40iw_ieq_check_mpacrc - check if mpa crc is OK
1300 * @desc: desc for hash
1301 * @addr: address of buffer for crc
1302 * @length: length of buffer
1303 * @value: value to be compared
1305 enum i40iw_status_code
i40iw_ieq_check_mpacrc(struct shash_desc
*desc
,
1312 enum i40iw_status_code ret_code
= 0;
1314 crypto_shash_init(desc
);
1315 ret
= crypto_shash_update(desc
, addr
, length
);
1317 crypto_shash_final(desc
, (u8
*)&crc
);
1319 i40iw_pr_err("mpa crc check fail\n");
1320 ret_code
= I40IW_ERR_MPA_CRC
;
1326 * i40iw_ieq_get_qp - get qp based on quad in puda buffer
1327 * @dev: hardware control device structure
1328 * @buf: receive puda buffer on exception q
1330 struct i40iw_sc_qp
*i40iw_ieq_get_qp(struct i40iw_sc_dev
*dev
,
1331 struct i40iw_puda_buf
*buf
)
1333 struct i40iw_device
*iwdev
= (struct i40iw_device
*)dev
->back_dev
;
1334 struct i40iw_qp
*iwqp
;
1335 struct i40iw_cm_node
*cm_node
;
1336 u32 loc_addr
[4], rem_addr
[4];
1337 u16 loc_port
, rem_port
;
1338 struct ipv6hdr
*ip6h
;
1339 struct iphdr
*iph
= (struct iphdr
*)buf
->iph
;
1340 struct tcphdr
*tcph
= (struct tcphdr
*)buf
->tcph
;
1342 if (iph
->version
== 4) {
1343 memset(loc_addr
, 0, sizeof(loc_addr
));
1344 loc_addr
[0] = ntohl(iph
->daddr
);
1345 memset(rem_addr
, 0, sizeof(rem_addr
));
1346 rem_addr
[0] = ntohl(iph
->saddr
);
1348 ip6h
= (struct ipv6hdr
*)buf
->iph
;
1349 i40iw_copy_ip_ntohl(loc_addr
, ip6h
->daddr
.in6_u
.u6_addr32
);
1350 i40iw_copy_ip_ntohl(rem_addr
, ip6h
->saddr
.in6_u
.u6_addr32
);
1352 loc_port
= ntohs(tcph
->dest
);
1353 rem_port
= ntohs(tcph
->source
);
1355 cm_node
= i40iw_find_node(&iwdev
->cm_core
, rem_port
, rem_addr
, loc_port
,
1359 iwqp
= cm_node
->iwqp
;
1360 return &iwqp
->sc_qp
;
1364 * i40iw_ieq_update_tcpip_info - update tcpip in the buffer
1365 * @buf: puda to update
1366 * @length: length of buffer
1367 * @seqnum: seq number for tcp
1369 void i40iw_ieq_update_tcpip_info(struct i40iw_puda_buf
*buf
, u16 length
, u32 seqnum
)
1371 struct tcphdr
*tcph
;
1375 u8
*addr
= (u8
*)buf
->mem
.va
;
1377 iphlen
= (buf
->ipv4
) ? 20 : 40;
1378 iph
= (struct iphdr
*)(addr
+ buf
->maclen
);
1379 tcph
= (struct tcphdr
*)(addr
+ buf
->maclen
+ iphlen
);
1380 packetsize
= length
+ buf
->tcphlen
+ iphlen
;
1382 iph
->tot_len
= htons(packetsize
);
1383 tcph
->seq
= htonl(seqnum
);
1387 * i40iw_puda_get_tcpip_info - get tcpip info from puda buffer
1388 * @info: to get information
1391 enum i40iw_status_code
i40iw_puda_get_tcpip_info(struct i40iw_puda_completion_info
*info
,
1392 struct i40iw_puda_buf
*buf
)
1395 struct ipv6hdr
*ip6h
;
1396 struct tcphdr
*tcph
;
1399 u8
*mem
= (u8
*)buf
->mem
.va
;
1400 struct ethhdr
*ethh
= (struct ethhdr
*)buf
->mem
.va
;
1402 if (ethh
->h_proto
== htons(0x8100)) {
1403 info
->vlan_valid
= true;
1404 buf
->vlan_id
= ntohs(((struct vlan_ethhdr
*)ethh
)->h_vlan_TCI
) & VLAN_VID_MASK
;
1406 buf
->maclen
= (info
->vlan_valid
) ? 18 : 14;
1407 iphlen
= (info
->l3proto
) ? 40 : 20;
1408 buf
->ipv4
= (info
->l3proto
) ? false : true;
1409 buf
->iph
= mem
+ buf
->maclen
;
1410 iph
= (struct iphdr
*)buf
->iph
;
1412 buf
->tcph
= buf
->iph
+ iphlen
;
1413 tcph
= (struct tcphdr
*)buf
->tcph
;
1416 pkt_len
= ntohs(iph
->tot_len
);
1418 ip6h
= (struct ipv6hdr
*)buf
->iph
;
1419 pkt_len
= ntohs(ip6h
->payload_len
) + iphlen
;
1422 buf
->totallen
= pkt_len
+ buf
->maclen
;
1424 if (info
->payload_len
< buf
->totallen
) {
1425 i40iw_pr_err("payload_len = 0x%x totallen expected0x%x\n",
1426 info
->payload_len
, buf
->totallen
);
1427 return I40IW_ERR_INVALID_SIZE
;
1430 buf
->tcphlen
= (tcph
->doff
) << 2;
1431 buf
->datalen
= pkt_len
- iphlen
- buf
->tcphlen
;
1432 buf
->data
= (buf
->datalen
) ? buf
->tcph
+ buf
->tcphlen
: NULL
;
1433 buf
->hdrlen
= buf
->maclen
+ iphlen
+ buf
->tcphlen
;
1434 buf
->seqnum
= ntohl(tcph
->seq
);
1439 * i40iw_hw_stats_timeout - Stats timer-handler which updates all HW stats
1440 * @vsi: pointer to the vsi structure
1442 static void i40iw_hw_stats_timeout(unsigned long vsi
)
1444 struct i40iw_sc_vsi
*sc_vsi
= (struct i40iw_sc_vsi
*)vsi
;
1445 struct i40iw_sc_dev
*pf_dev
= sc_vsi
->dev
;
1446 struct i40iw_vsi_pestat
*pf_devstat
= sc_vsi
->pestat
;
1447 struct i40iw_vsi_pestat
*vf_devstat
= NULL
;
1449 unsigned long flags
;
1452 i40iw_hw_stats_read_all(pf_devstat
, &pf_devstat
->hw_stats
);
1454 for (iw_vf_idx
= 0; iw_vf_idx
< I40IW_MAX_PE_ENABLED_VF_COUNT
; iw_vf_idx
++) {
1455 spin_lock_irqsave(&pf_devstat
->lock
, flags
);
1456 if (pf_dev
->vf_dev
[iw_vf_idx
]) {
1457 if (pf_dev
->vf_dev
[iw_vf_idx
]->stats_initialized
) {
1458 vf_devstat
= &pf_dev
->vf_dev
[iw_vf_idx
]->pestat
;
1459 i40iw_hw_stats_read_all(vf_devstat
, &vf_devstat
->hw_stats
);
1462 spin_unlock_irqrestore(&pf_devstat
->lock
, flags
);
1465 mod_timer(&pf_devstat
->stats_timer
,
1466 jiffies
+ msecs_to_jiffies(STATS_TIMER_DELAY
));
1470 * i40iw_hw_stats_start_timer - Start periodic stats timer
1471 * @vsi: pointer to the vsi structure
1473 void i40iw_hw_stats_start_timer(struct i40iw_sc_vsi
*vsi
)
1475 struct i40iw_vsi_pestat
*devstat
= vsi
->pestat
;
1477 setup_timer(&devstat
->stats_timer
, i40iw_hw_stats_timeout
,
1478 (unsigned long)vsi
);
1479 mod_timer(&devstat
->stats_timer
,
1480 jiffies
+ msecs_to_jiffies(STATS_TIMER_DELAY
));
1484 * i40iw_hw_stats_stop_timer - Delete periodic stats timer
1485 * @vsi: pointer to the vsi structure
1487 void i40iw_hw_stats_stop_timer(struct i40iw_sc_vsi
*vsi
)
1489 struct i40iw_vsi_pestat
*devstat
= vsi
->pestat
;
1491 del_timer_sync(&devstat
->stats_timer
);