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 ipv4 addr 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
< IP_ADDR_REGISTERED
|| iwdev
->closing
)
166 netdev
= iwdev
->ldev
->netdev
;
167 upper_dev
= netdev_master_upper_dev_get(netdev
);
168 if (netdev
!= event_netdev
)
172 struct in_device
*in
;
175 in
= __in_dev_get_rcu(upper_dev
);
176 local_ipaddr
= ntohl(in
->ifa_list
->ifa_address
);
179 local_ipaddr
= ntohl(ifa
->ifa_address
);
183 action
= I40IW_ARP_DELETE
;
187 case NETDEV_CHANGEADDR
:
188 i40iw_manage_arp_cache(iwdev
,
193 i40iw_if_notify(iwdev
, netdev
, &local_ipaddr
, true,
194 (action
== I40IW_ARP_ADD
) ? true : false);
203 * i40iw_inet6addr_event - system notifier for ipv6 addr events
205 * @event: event for notifier
208 int i40iw_inet6addr_event(struct notifier_block
*notifier
,
212 struct inet6_ifaddr
*ifa
= (struct inet6_ifaddr
*)ptr
;
213 struct net_device
*event_netdev
= ifa
->idev
->dev
;
214 struct net_device
*netdev
;
215 struct i40iw_device
*iwdev
;
216 struct i40iw_handler
*hdl
;
217 u32 local_ipaddr6
[4];
218 u32 action
= I40IW_ARP_ADD
;
220 hdl
= i40iw_find_netdev(event_netdev
);
224 iwdev
= &hdl
->device
;
225 if (iwdev
->init_state
< IP_ADDR_REGISTERED
|| iwdev
->closing
)
228 netdev
= iwdev
->ldev
->netdev
;
229 if (netdev
!= event_netdev
)
232 i40iw_copy_ip_ntohl(local_ipaddr6
, ifa
->addr
.in6_u
.u6_addr32
);
235 action
= I40IW_ARP_DELETE
;
239 case NETDEV_CHANGEADDR
:
240 i40iw_manage_arp_cache(iwdev
,
245 i40iw_if_notify(iwdev
, netdev
, local_ipaddr6
, false,
246 (action
== I40IW_ARP_ADD
) ? true : false);
255 * i40iw_net_event - system notifier for netevents
257 * @event: event for notifier
260 int i40iw_net_event(struct notifier_block
*notifier
, unsigned long event
, void *ptr
)
262 struct neighbour
*neigh
= ptr
;
263 struct i40iw_device
*iwdev
;
264 struct i40iw_handler
*iwhdl
;
269 case NETEVENT_NEIGH_UPDATE
:
270 iwhdl
= i40iw_find_netdev((struct net_device
*)neigh
->dev
);
273 iwdev
= &iwhdl
->device
;
274 if (iwdev
->init_state
< IP_ADDR_REGISTERED
|| iwdev
->closing
)
276 p
= (__be32
*)neigh
->primary_key
;
277 i40iw_copy_ip_ntohl(local_ipaddr
, p
);
278 if (neigh
->nud_state
& NUD_VALID
) {
279 i40iw_manage_arp_cache(iwdev
,
286 i40iw_manage_arp_cache(iwdev
,
300 * i40iw_netdevice_event - system notifier for netdev events
302 * @event: event for notifier
305 int i40iw_netdevice_event(struct notifier_block
*notifier
,
309 struct net_device
*event_netdev
;
310 struct net_device
*netdev
;
311 struct i40iw_device
*iwdev
;
312 struct i40iw_handler
*hdl
;
314 event_netdev
= netdev_notifier_info_to_dev(ptr
);
316 hdl
= i40iw_find_netdev(event_netdev
);
320 iwdev
= &hdl
->device
;
321 if (iwdev
->init_state
< RDMA_DEV_REGISTERED
|| iwdev
->closing
)
324 netdev
= iwdev
->ldev
->netdev
;
325 if (netdev
!= event_netdev
)
328 iwdev
->iw_status
= 1;
332 iwdev
->iw_status
= 0;
335 i40iw_port_ibevent(iwdev
);
344 * i40iw_get_cqp_request - get cqp struct
345 * @cqp: device cqp ptr
346 * @wait: cqp to be used in wait mode
348 struct i40iw_cqp_request
*i40iw_get_cqp_request(struct i40iw_cqp
*cqp
, bool wait
)
350 struct i40iw_cqp_request
*cqp_request
= NULL
;
353 spin_lock_irqsave(&cqp
->req_lock
, flags
);
354 if (!list_empty(&cqp
->cqp_avail_reqs
)) {
355 cqp_request
= list_entry(cqp
->cqp_avail_reqs
.next
,
356 struct i40iw_cqp_request
, list
);
357 list_del_init(&cqp_request
->list
);
359 spin_unlock_irqrestore(&cqp
->req_lock
, flags
);
361 cqp_request
= kzalloc(sizeof(*cqp_request
), GFP_ATOMIC
);
363 cqp_request
->dynamic
= true;
364 INIT_LIST_HEAD(&cqp_request
->list
);
365 init_waitqueue_head(&cqp_request
->waitq
);
369 i40iw_pr_err("CQP Request Fail: No Memory");
374 atomic_set(&cqp_request
->refcount
, 2);
375 cqp_request
->waiting
= true;
377 atomic_set(&cqp_request
->refcount
, 1);
383 * i40iw_free_cqp_request - free cqp request
385 * @cqp_request: to be put back in cqp list
387 void i40iw_free_cqp_request(struct i40iw_cqp
*cqp
, struct i40iw_cqp_request
*cqp_request
)
389 struct i40iw_device
*iwdev
= container_of(cqp
, struct i40iw_device
, cqp
);
392 if (cqp_request
->dynamic
) {
395 cqp_request
->request_done
= false;
396 cqp_request
->callback_fcn
= NULL
;
397 cqp_request
->waiting
= false;
399 spin_lock_irqsave(&cqp
->req_lock
, flags
);
400 list_add_tail(&cqp_request
->list
, &cqp
->cqp_avail_reqs
);
401 spin_unlock_irqrestore(&cqp
->req_lock
, flags
);
403 wake_up(&iwdev
->close_wq
);
407 * i40iw_put_cqp_request - dec ref count and free if 0
409 * @cqp_request: to be put back in cqp list
411 void i40iw_put_cqp_request(struct i40iw_cqp
*cqp
,
412 struct i40iw_cqp_request
*cqp_request
)
414 if (atomic_dec_and_test(&cqp_request
->refcount
))
415 i40iw_free_cqp_request(cqp
, cqp_request
);
419 * i40iw_free_pending_cqp_request -free pending cqp request objs
421 * @cqp_request: to be put back in cqp list
423 static void i40iw_free_pending_cqp_request(struct i40iw_cqp
*cqp
,
424 struct i40iw_cqp_request
*cqp_request
)
426 struct i40iw_device
*iwdev
= container_of(cqp
, struct i40iw_device
, cqp
);
428 if (cqp_request
->waiting
) {
429 cqp_request
->compl_info
.error
= true;
430 cqp_request
->request_done
= true;
431 wake_up(&cqp_request
->waitq
);
433 i40iw_put_cqp_request(cqp
, cqp_request
);
434 wait_event_timeout(iwdev
->close_wq
,
435 !atomic_read(&cqp_request
->refcount
),
440 * i40iw_cleanup_pending_cqp_op - clean-up cqp with no completions
441 * @iwdev: iwarp device
443 void i40iw_cleanup_pending_cqp_op(struct i40iw_device
*iwdev
)
445 struct i40iw_sc_dev
*dev
= &iwdev
->sc_dev
;
446 struct i40iw_cqp
*cqp
= &iwdev
->cqp
;
447 struct i40iw_cqp_request
*cqp_request
= NULL
;
448 struct cqp_commands_info
*pcmdinfo
= NULL
;
449 u32 i
, pending_work
, wqe_idx
;
451 pending_work
= I40IW_RING_WORK_AVAILABLE(cqp
->sc_cqp
.sq_ring
);
452 wqe_idx
= I40IW_RING_GETCURRENT_TAIL(cqp
->sc_cqp
.sq_ring
);
453 for (i
= 0; i
< pending_work
; i
++) {
454 cqp_request
= (struct i40iw_cqp_request
*)(unsigned long)cqp
->scratch_array
[wqe_idx
];
456 i40iw_free_pending_cqp_request(cqp
, cqp_request
);
457 wqe_idx
= (wqe_idx
+ 1) % I40IW_RING_GETSIZE(cqp
->sc_cqp
.sq_ring
);
460 while (!list_empty(&dev
->cqp_cmd_head
)) {
461 pcmdinfo
= (struct cqp_commands_info
*)i40iw_remove_head(&dev
->cqp_cmd_head
);
462 cqp_request
= container_of(pcmdinfo
, struct i40iw_cqp_request
, info
);
464 i40iw_free_pending_cqp_request(cqp
, cqp_request
);
469 * i40iw_free_qp - callback after destroy cqp completes
470 * @cqp_request: cqp request for destroy qp
473 static void i40iw_free_qp(struct i40iw_cqp_request
*cqp_request
, u32 num
)
475 struct i40iw_sc_qp
*qp
= (struct i40iw_sc_qp
*)cqp_request
->param
;
476 struct i40iw_qp
*iwqp
= (struct i40iw_qp
*)qp
->back_qp
;
477 struct i40iw_device
*iwdev
;
478 u32 qp_num
= iwqp
->ibqp
.qp_num
;
482 i40iw_rem_pdusecount(iwqp
->iwpd
, iwdev
);
483 i40iw_free_qp_resources(iwdev
, iwqp
, qp_num
);
484 i40iw_rem_devusecount(iwdev
);
488 * i40iw_wait_event - wait for completion
489 * @iwdev: iwarp device
490 * @cqp_request: cqp request to wait
492 static int i40iw_wait_event(struct i40iw_device
*iwdev
,
493 struct i40iw_cqp_request
*cqp_request
)
495 struct cqp_commands_info
*info
= &cqp_request
->info
;
496 struct i40iw_cqp
*iwcqp
= &iwdev
->cqp
;
497 struct i40iw_cqp_timeout cqp_timeout
;
498 bool cqp_error
= false;
500 memset(&cqp_timeout
, 0, sizeof(cqp_timeout
));
501 cqp_timeout
.compl_cqp_cmds
= iwdev
->sc_dev
.cqp_cmd_stats
[OP_COMPLETED_COMMANDS
];
503 if (wait_event_timeout(cqp_request
->waitq
,
504 cqp_request
->request_done
, CQP_COMPL_WAIT_TIME
))
507 i40iw_check_cqp_progress(&cqp_timeout
, &iwdev
->sc_dev
);
509 if (cqp_timeout
.count
< CQP_TIMEOUT_THRESHOLD
)
512 i40iw_pr_err("error cqp command 0x%x timed out", info
->cqp_cmd
);
516 i40iw_request_reset(iwdev
);
520 cqp_error
= cqp_request
->compl_info
.error
;
522 i40iw_pr_err("error cqp command 0x%x completion maj = 0x%x min=0x%x\n",
523 info
->cqp_cmd
, cqp_request
->compl_info
.maj_err_code
,
524 cqp_request
->compl_info
.min_err_code
);
529 i40iw_put_cqp_request(iwcqp
, cqp_request
);
534 * i40iw_handle_cqp_op - process cqp command
535 * @iwdev: iwarp device
536 * @cqp_request: cqp request to process
538 enum i40iw_status_code
i40iw_handle_cqp_op(struct i40iw_device
*iwdev
,
539 struct i40iw_cqp_request
542 struct i40iw_sc_dev
*dev
= &iwdev
->sc_dev
;
543 enum i40iw_status_code status
;
544 struct cqp_commands_info
*info
= &cqp_request
->info
;
548 i40iw_free_cqp_request(&iwdev
->cqp
, cqp_request
);
549 return I40IW_ERR_CQP_COMPL_ERROR
;
552 status
= i40iw_process_cqp_cmd(dev
, info
);
554 i40iw_pr_err("error cqp command 0x%x failed\n", info
->cqp_cmd
);
555 i40iw_free_cqp_request(&iwdev
->cqp
, cqp_request
);
558 if (cqp_request
->waiting
)
559 err_code
= i40iw_wait_event(iwdev
, cqp_request
);
561 status
= I40IW_ERR_CQP_COMPL_ERROR
;
566 * i40iw_add_devusecount - add dev refcount
567 * @iwdev: dev for refcount
569 void i40iw_add_devusecount(struct i40iw_device
*iwdev
)
571 atomic64_inc(&iwdev
->use_count
);
575 * i40iw_rem_devusecount - decrement refcount for dev
578 void i40iw_rem_devusecount(struct i40iw_device
*iwdev
)
580 if (!atomic64_dec_and_test(&iwdev
->use_count
))
582 wake_up(&iwdev
->close_wq
);
586 * i40iw_add_pdusecount - add pd refcount
587 * @iwpd: pd for refcount
589 void i40iw_add_pdusecount(struct i40iw_pd
*iwpd
)
591 atomic_inc(&iwpd
->usecount
);
595 * i40iw_rem_pdusecount - decrement refcount for pd and free if 0
596 * @iwpd: pd for refcount
597 * @iwdev: iwarp device
599 void i40iw_rem_pdusecount(struct i40iw_pd
*iwpd
, struct i40iw_device
*iwdev
)
601 if (!atomic_dec_and_test(&iwpd
->usecount
))
603 i40iw_free_resource(iwdev
, iwdev
->allocated_pds
, iwpd
->sc_pd
.pd_id
);
607 * i40iw_add_ref - add refcount for qp
610 void i40iw_add_ref(struct ib_qp
*ibqp
)
612 struct i40iw_qp
*iwqp
= (struct i40iw_qp
*)ibqp
;
614 atomic_inc(&iwqp
->refcount
);
618 * i40iw_rem_ref - rem refcount for qp and free if 0
621 void i40iw_rem_ref(struct ib_qp
*ibqp
)
623 struct i40iw_qp
*iwqp
;
624 enum i40iw_status_code status
;
625 struct i40iw_cqp_request
*cqp_request
;
626 struct cqp_commands_info
*cqp_info
;
627 struct i40iw_device
*iwdev
;
631 iwqp
= to_iwqp(ibqp
);
633 spin_lock_irqsave(&iwdev
->qptable_lock
, flags
);
634 if (!atomic_dec_and_test(&iwqp
->refcount
)) {
635 spin_unlock_irqrestore(&iwdev
->qptable_lock
, flags
);
639 qp_num
= iwqp
->ibqp
.qp_num
;
640 iwdev
->qp_table
[qp_num
] = NULL
;
641 spin_unlock_irqrestore(&iwdev
->qptable_lock
, flags
);
642 cqp_request
= i40iw_get_cqp_request(&iwdev
->cqp
, false);
646 cqp_request
->callback_fcn
= i40iw_free_qp
;
647 cqp_request
->param
= (void *)&iwqp
->sc_qp
;
648 cqp_info
= &cqp_request
->info
;
649 cqp_info
->cqp_cmd
= OP_QP_DESTROY
;
650 cqp_info
->post_sq
= 1;
651 cqp_info
->in
.u
.qp_destroy
.qp
= &iwqp
->sc_qp
;
652 cqp_info
->in
.u
.qp_destroy
.scratch
= (uintptr_t)cqp_request
;
653 cqp_info
->in
.u
.qp_destroy
.remove_hash_idx
= true;
654 status
= i40iw_handle_cqp_op(iwdev
, cqp_request
);
658 i40iw_rem_pdusecount(iwqp
->iwpd
, iwdev
);
659 i40iw_free_qp_resources(iwdev
, iwqp
, qp_num
);
660 i40iw_rem_devusecount(iwdev
);
664 * i40iw_get_qp - get qp address
665 * @device: iwarp device
668 struct ib_qp
*i40iw_get_qp(struct ib_device
*device
, int qpn
)
670 struct i40iw_device
*iwdev
= to_iwdev(device
);
672 if ((qpn
< IW_FIRST_QPN
) || (qpn
>= iwdev
->max_qp
))
675 return &iwdev
->qp_table
[qpn
]->ibqp
;
679 * i40iw_debug_buf - print debug msg and buffer is mask set
680 * @dev: hardware control device structure
681 * @mask: mask to compare if to print debug buffer
682 * @buf: points buffer addr
683 * @size: saize of buffer to print
685 void i40iw_debug_buf(struct i40iw_sc_dev
*dev
,
686 enum i40iw_debug_flag mask
,
693 if (!(dev
->debug_mask
& mask
))
695 i40iw_debug(dev
, mask
, "%s\n", desc
);
696 i40iw_debug(dev
, mask
, "starting address virt=%p phy=%llxh\n", buf
,
697 (unsigned long long)virt_to_phys(buf
));
699 for (i
= 0; i
< size
; i
+= 8)
700 i40iw_debug(dev
, mask
, "index %03d val: %016llx\n", i
, buf
[i
/ 8]);
704 * i40iw_get_hw_addr - return hw addr
705 * @par: points to shared dev
707 u8 __iomem
*i40iw_get_hw_addr(void *par
)
709 struct i40iw_sc_dev
*dev
= (struct i40iw_sc_dev
*)par
;
711 return dev
->hw
->hw_addr
;
715 * i40iw_remove_head - return head entry and remove from list
716 * @list: list for entry
718 void *i40iw_remove_head(struct list_head
*list
)
720 struct list_head
*entry
;
722 if (list_empty(list
))
725 entry
= (void *)list
->next
;
727 return (void *)entry
;
731 * i40iw_allocate_dma_mem - Memory alloc helper fn
732 * @hw: pointer to the HW structure
733 * @mem: ptr to mem struct to fill out
734 * @size: size of memory requested
735 * @alignment: what to align the allocation to
737 enum i40iw_status_code
i40iw_allocate_dma_mem(struct i40iw_hw
*hw
,
738 struct i40iw_dma_mem
*mem
,
742 struct pci_dev
*pcidev
= (struct pci_dev
*)hw
->dev_context
;
745 return I40IW_ERR_PARAM
;
746 mem
->size
= ALIGN(size
, alignment
);
747 mem
->va
= dma_alloc_coherent(&pcidev
->dev
, mem
->size
,
748 (dma_addr_t
*)&mem
->pa
, GFP_KERNEL
);
750 return I40IW_ERR_NO_MEMORY
;
755 * i40iw_free_dma_mem - Memory free helper fn
756 * @hw: pointer to the HW structure
757 * @mem: ptr to mem struct to free
759 void i40iw_free_dma_mem(struct i40iw_hw
*hw
, struct i40iw_dma_mem
*mem
)
761 struct pci_dev
*pcidev
= (struct pci_dev
*)hw
->dev_context
;
763 if (!mem
|| !mem
->va
)
766 dma_free_coherent(&pcidev
->dev
, mem
->size
,
767 mem
->va
, (dma_addr_t
)mem
->pa
);
772 * i40iw_allocate_virt_mem - virtual memory alloc helper fn
773 * @hw: pointer to the HW structure
774 * @mem: ptr to mem struct to fill out
775 * @size: size of memory requested
777 enum i40iw_status_code
i40iw_allocate_virt_mem(struct i40iw_hw
*hw
,
778 struct i40iw_virt_mem
*mem
,
782 return I40IW_ERR_PARAM
;
785 mem
->va
= kzalloc(size
, GFP_KERNEL
);
790 return I40IW_ERR_NO_MEMORY
;
794 * i40iw_free_virt_mem - virtual memory free helper fn
795 * @hw: pointer to the HW structure
796 * @mem: ptr to mem struct to free
798 enum i40iw_status_code
i40iw_free_virt_mem(struct i40iw_hw
*hw
,
799 struct i40iw_virt_mem
*mem
)
802 return I40IW_ERR_PARAM
;
804 * mem->va points to the parent of mem, so both mem and mem->va
805 * can not be touched once mem->va is freed
812 * i40iw_cqp_sds_cmd - create cqp command for sd
813 * @dev: hardware control device structure
814 * @sd_info: information for sd cqp
817 enum i40iw_status_code
i40iw_cqp_sds_cmd(struct i40iw_sc_dev
*dev
,
818 struct i40iw_update_sds_info
*sdinfo
)
820 enum i40iw_status_code status
;
821 struct i40iw_cqp_request
*cqp_request
;
822 struct cqp_commands_info
*cqp_info
;
823 struct i40iw_device
*iwdev
= (struct i40iw_device
*)dev
->back_dev
;
825 cqp_request
= i40iw_get_cqp_request(&iwdev
->cqp
, true);
827 return I40IW_ERR_NO_MEMORY
;
828 cqp_info
= &cqp_request
->info
;
829 memcpy(&cqp_info
->in
.u
.update_pe_sds
.info
, sdinfo
,
830 sizeof(cqp_info
->in
.u
.update_pe_sds
.info
));
831 cqp_info
->cqp_cmd
= OP_UPDATE_PE_SDS
;
832 cqp_info
->post_sq
= 1;
833 cqp_info
->in
.u
.update_pe_sds
.dev
= dev
;
834 cqp_info
->in
.u
.update_pe_sds
.scratch
= (uintptr_t)cqp_request
;
835 status
= i40iw_handle_cqp_op(iwdev
, cqp_request
);
837 i40iw_pr_err("CQP-OP Update SD's fail");
842 * i40iw_qp_suspend_resume - cqp command for suspend/resume
843 * @dev: hardware control device structure
844 * @qp: hardware control qp
845 * @suspend: flag if suspend or resume
847 void i40iw_qp_suspend_resume(struct i40iw_sc_dev
*dev
, struct i40iw_sc_qp
*qp
, bool suspend
)
849 struct i40iw_device
*iwdev
= (struct i40iw_device
*)dev
->back_dev
;
850 struct i40iw_cqp_request
*cqp_request
;
851 struct i40iw_sc_cqp
*cqp
= dev
->cqp
;
852 struct cqp_commands_info
*cqp_info
;
853 enum i40iw_status_code status
;
855 cqp_request
= i40iw_get_cqp_request(&iwdev
->cqp
, false);
859 cqp_info
= &cqp_request
->info
;
860 cqp_info
->cqp_cmd
= (suspend
) ? OP_SUSPEND
: OP_RESUME
;
861 cqp_info
->in
.u
.suspend_resume
.cqp
= cqp
;
862 cqp_info
->in
.u
.suspend_resume
.qp
= qp
;
863 cqp_info
->in
.u
.suspend_resume
.scratch
= (uintptr_t)cqp_request
;
864 status
= i40iw_handle_cqp_op(iwdev
, cqp_request
);
866 i40iw_pr_err("CQP-OP QP Suspend/Resume fail");
870 * i40iw_term_modify_qp - modify qp for term message
871 * @qp: hardware control qp
872 * @next_state: qp's next state
873 * @term: terminate code
876 void i40iw_term_modify_qp(struct i40iw_sc_qp
*qp
, u8 next_state
, u8 term
, u8 term_len
)
878 struct i40iw_qp
*iwqp
;
880 iwqp
= (struct i40iw_qp
*)qp
->back_qp
;
881 i40iw_next_iw_state(iwqp
, next_state
, 0, term
, term_len
);
885 * i40iw_terminate_done - after terminate is completed
886 * @qp: hardware control qp
887 * @timeout_occurred: indicates if terminate timer expired
889 void i40iw_terminate_done(struct i40iw_sc_qp
*qp
, int timeout_occurred
)
891 struct i40iw_qp
*iwqp
;
892 u32 next_iwarp_state
= I40IW_QP_STATE_ERROR
;
897 iwqp
= (struct i40iw_qp
*)qp
->back_qp
;
898 spin_lock_irqsave(&iwqp
->lock
, flags
);
899 if (iwqp
->hte_added
) {
903 first_time
= !(qp
->term_flags
& I40IW_TERM_DONE
);
904 qp
->term_flags
|= I40IW_TERM_DONE
;
905 spin_unlock_irqrestore(&iwqp
->lock
, flags
);
907 if (!timeout_occurred
)
908 i40iw_terminate_del_timer(qp
);
910 next_iwarp_state
= I40IW_QP_STATE_CLOSING
;
912 i40iw_next_iw_state(iwqp
, next_iwarp_state
, hte
, 0, 0);
913 i40iw_cm_disconn(iwqp
);
918 * i40iw_terminate_imeout - timeout happened
919 * @context: points to iwarp qp
921 static void i40iw_terminate_timeout(struct timer_list
*t
)
923 struct i40iw_qp
*iwqp
= from_timer(iwqp
, t
, terminate_timer
);
924 struct i40iw_sc_qp
*qp
= (struct i40iw_sc_qp
*)&iwqp
->sc_qp
;
926 i40iw_terminate_done(qp
, 1);
927 i40iw_rem_ref(&iwqp
->ibqp
);
931 * i40iw_terminate_start_timer - start terminate timeout
932 * @qp: hardware control qp
934 void i40iw_terminate_start_timer(struct i40iw_sc_qp
*qp
)
936 struct i40iw_qp
*iwqp
;
938 iwqp
= (struct i40iw_qp
*)qp
->back_qp
;
939 i40iw_add_ref(&iwqp
->ibqp
);
940 timer_setup(&iwqp
->terminate_timer
, i40iw_terminate_timeout
, 0);
941 iwqp
->terminate_timer
.expires
= jiffies
+ HZ
;
942 add_timer(&iwqp
->terminate_timer
);
946 * i40iw_terminate_del_timer - delete terminate timeout
947 * @qp: hardware control qp
949 void i40iw_terminate_del_timer(struct i40iw_sc_qp
*qp
)
951 struct i40iw_qp
*iwqp
;
953 iwqp
= (struct i40iw_qp
*)qp
->back_qp
;
954 if (del_timer(&iwqp
->terminate_timer
))
955 i40iw_rem_ref(&iwqp
->ibqp
);
959 * i40iw_cqp_generic_worker - generic worker for cqp
960 * @work: work pointer
962 static void i40iw_cqp_generic_worker(struct work_struct
*work
)
964 struct i40iw_virtchnl_work_info
*work_info
=
965 &((struct virtchnl_work
*)work
)->work_info
;
967 if (work_info
->worker_vf_dev
)
968 work_info
->callback_fcn(work_info
->worker_vf_dev
);
972 * i40iw_cqp_spawn_worker - spawn worket thread
973 * @iwdev: device struct pointer
974 * @work_info: work request info
975 * @iw_vf_idx: virtual function index
977 void i40iw_cqp_spawn_worker(struct i40iw_sc_dev
*dev
,
978 struct i40iw_virtchnl_work_info
*work_info
,
981 struct virtchnl_work
*work
;
982 struct i40iw_device
*iwdev
= (struct i40iw_device
*)dev
->back_dev
;
984 work
= &iwdev
->virtchnl_w
[iw_vf_idx
];
985 memcpy(&work
->work_info
, work_info
, sizeof(*work_info
));
986 INIT_WORK(&work
->work
, i40iw_cqp_generic_worker
);
987 queue_work(iwdev
->virtchnl_wq
, &work
->work
);
991 * i40iw_cqp_manage_hmc_fcn_worker -
992 * @work: work pointer for hmc info
994 static void i40iw_cqp_manage_hmc_fcn_worker(struct work_struct
*work
)
996 struct i40iw_cqp_request
*cqp_request
=
997 ((struct virtchnl_work
*)work
)->cqp_request
;
998 struct i40iw_ccq_cqe_info ccq_cqe_info
;
999 struct i40iw_hmc_fcn_info
*hmcfcninfo
=
1000 &cqp_request
->info
.in
.u
.manage_hmc_pm
.info
;
1001 struct i40iw_device
*iwdev
=
1002 (struct i40iw_device
*)cqp_request
->info
.in
.u
.manage_hmc_pm
.dev
->back_dev
;
1004 ccq_cqe_info
.cqp
= NULL
;
1005 ccq_cqe_info
.maj_err_code
= cqp_request
->compl_info
.maj_err_code
;
1006 ccq_cqe_info
.min_err_code
= cqp_request
->compl_info
.min_err_code
;
1007 ccq_cqe_info
.op_code
= cqp_request
->compl_info
.op_code
;
1008 ccq_cqe_info
.op_ret_val
= cqp_request
->compl_info
.op_ret_val
;
1009 ccq_cqe_info
.scratch
= 0;
1010 ccq_cqe_info
.error
= cqp_request
->compl_info
.error
;
1011 hmcfcninfo
->callback_fcn(cqp_request
->info
.in
.u
.manage_hmc_pm
.dev
,
1012 hmcfcninfo
->cqp_callback_param
, &ccq_cqe_info
);
1013 i40iw_put_cqp_request(&iwdev
->cqp
, cqp_request
);
1017 * i40iw_cqp_manage_hmc_fcn_callback - called function after cqp completion
1018 * @cqp_request: cqp request info struct for hmc fun
1019 * @unused: unused param of callback
1021 static void i40iw_cqp_manage_hmc_fcn_callback(struct i40iw_cqp_request
*cqp_request
,
1024 struct virtchnl_work
*work
;
1025 struct i40iw_hmc_fcn_info
*hmcfcninfo
=
1026 &cqp_request
->info
.in
.u
.manage_hmc_pm
.info
;
1027 struct i40iw_device
*iwdev
=
1028 (struct i40iw_device
*)cqp_request
->info
.in
.u
.manage_hmc_pm
.dev
->
1031 if (hmcfcninfo
&& hmcfcninfo
->callback_fcn
) {
1032 i40iw_debug(&iwdev
->sc_dev
, I40IW_DEBUG_HMC
, "%s1\n", __func__
);
1033 atomic_inc(&cqp_request
->refcount
);
1034 work
= &iwdev
->virtchnl_w
[hmcfcninfo
->iw_vf_idx
];
1035 work
->cqp_request
= cqp_request
;
1036 INIT_WORK(&work
->work
, i40iw_cqp_manage_hmc_fcn_worker
);
1037 queue_work(iwdev
->virtchnl_wq
, &work
->work
);
1038 i40iw_debug(&iwdev
->sc_dev
, I40IW_DEBUG_HMC
, "%s2\n", __func__
);
1040 i40iw_debug(&iwdev
->sc_dev
, I40IW_DEBUG_HMC
, "%s: Something wrong\n", __func__
);
1045 * i40iw_cqp_manage_hmc_fcn_cmd - issue cqp command to manage hmc
1046 * @dev: hardware control device structure
1047 * @hmcfcninfo: info for hmc
1049 enum i40iw_status_code
i40iw_cqp_manage_hmc_fcn_cmd(struct i40iw_sc_dev
*dev
,
1050 struct i40iw_hmc_fcn_info
*hmcfcninfo
)
1052 enum i40iw_status_code status
;
1053 struct i40iw_cqp_request
*cqp_request
;
1054 struct cqp_commands_info
*cqp_info
;
1055 struct i40iw_device
*iwdev
= (struct i40iw_device
*)dev
->back_dev
;
1057 i40iw_debug(&iwdev
->sc_dev
, I40IW_DEBUG_HMC
, "%s\n", __func__
);
1058 cqp_request
= i40iw_get_cqp_request(&iwdev
->cqp
, false);
1060 return I40IW_ERR_NO_MEMORY
;
1061 cqp_info
= &cqp_request
->info
;
1062 cqp_request
->callback_fcn
= i40iw_cqp_manage_hmc_fcn_callback
;
1063 cqp_request
->param
= hmcfcninfo
;
1064 memcpy(&cqp_info
->in
.u
.manage_hmc_pm
.info
, hmcfcninfo
,
1065 sizeof(*hmcfcninfo
));
1066 cqp_info
->in
.u
.manage_hmc_pm
.dev
= dev
;
1067 cqp_info
->cqp_cmd
= OP_MANAGE_HMC_PM_FUNC_TABLE
;
1068 cqp_info
->post_sq
= 1;
1069 cqp_info
->in
.u
.manage_hmc_pm
.scratch
= (uintptr_t)cqp_request
;
1070 status
= i40iw_handle_cqp_op(iwdev
, cqp_request
);
1072 i40iw_pr_err("CQP-OP Manage HMC fail");
1077 * i40iw_cqp_query_fpm_values_cmd - send cqp command for fpm
1078 * @iwdev: function device struct
1079 * @values_mem: buffer for fpm
1080 * @hmc_fn_id: function id for fpm
1082 enum i40iw_status_code
i40iw_cqp_query_fpm_values_cmd(struct i40iw_sc_dev
*dev
,
1083 struct i40iw_dma_mem
*values_mem
,
1086 enum i40iw_status_code status
;
1087 struct i40iw_cqp_request
*cqp_request
;
1088 struct cqp_commands_info
*cqp_info
;
1089 struct i40iw_device
*iwdev
= (struct i40iw_device
*)dev
->back_dev
;
1091 cqp_request
= i40iw_get_cqp_request(&iwdev
->cqp
, true);
1093 return I40IW_ERR_NO_MEMORY
;
1094 cqp_info
= &cqp_request
->info
;
1095 cqp_request
->param
= NULL
;
1096 cqp_info
->in
.u
.query_fpm_values
.cqp
= dev
->cqp
;
1097 cqp_info
->in
.u
.query_fpm_values
.fpm_values_pa
= values_mem
->pa
;
1098 cqp_info
->in
.u
.query_fpm_values
.fpm_values_va
= values_mem
->va
;
1099 cqp_info
->in
.u
.query_fpm_values
.hmc_fn_id
= hmc_fn_id
;
1100 cqp_info
->cqp_cmd
= OP_QUERY_FPM_VALUES
;
1101 cqp_info
->post_sq
= 1;
1102 cqp_info
->in
.u
.query_fpm_values
.scratch
= (uintptr_t)cqp_request
;
1103 status
= i40iw_handle_cqp_op(iwdev
, cqp_request
);
1105 i40iw_pr_err("CQP-OP Query FPM fail");
1110 * i40iw_cqp_commit_fpm_values_cmd - commit fpm values in hw
1111 * @dev: hardware control device structure
1112 * @values_mem: buffer with fpm values
1113 * @hmc_fn_id: function id for fpm
1115 enum i40iw_status_code
i40iw_cqp_commit_fpm_values_cmd(struct i40iw_sc_dev
*dev
,
1116 struct i40iw_dma_mem
*values_mem
,
1119 enum i40iw_status_code status
;
1120 struct i40iw_cqp_request
*cqp_request
;
1121 struct cqp_commands_info
*cqp_info
;
1122 struct i40iw_device
*iwdev
= (struct i40iw_device
*)dev
->back_dev
;
1124 cqp_request
= i40iw_get_cqp_request(&iwdev
->cqp
, true);
1126 return I40IW_ERR_NO_MEMORY
;
1127 cqp_info
= &cqp_request
->info
;
1128 cqp_request
->param
= NULL
;
1129 cqp_info
->in
.u
.commit_fpm_values
.cqp
= dev
->cqp
;
1130 cqp_info
->in
.u
.commit_fpm_values
.fpm_values_pa
= values_mem
->pa
;
1131 cqp_info
->in
.u
.commit_fpm_values
.fpm_values_va
= values_mem
->va
;
1132 cqp_info
->in
.u
.commit_fpm_values
.hmc_fn_id
= hmc_fn_id
;
1133 cqp_info
->cqp_cmd
= OP_COMMIT_FPM_VALUES
;
1134 cqp_info
->post_sq
= 1;
1135 cqp_info
->in
.u
.commit_fpm_values
.scratch
= (uintptr_t)cqp_request
;
1136 status
= i40iw_handle_cqp_op(iwdev
, cqp_request
);
1138 i40iw_pr_err("CQP-OP Commit FPM fail");
1143 * i40iw_vf_wait_vchnl_resp - wait for channel msg
1144 * @iwdev: function's device struct
1146 enum i40iw_status_code
i40iw_vf_wait_vchnl_resp(struct i40iw_sc_dev
*dev
)
1148 struct i40iw_device
*iwdev
= dev
->back_dev
;
1151 i40iw_debug(dev
, I40IW_DEBUG_VIRT
, "%s[%u] dev %p, iwdev %p\n",
1152 __func__
, __LINE__
, dev
, iwdev
);
1154 atomic_set(&iwdev
->vchnl_msgs
, 2);
1155 timeout_ret
= wait_event_timeout(iwdev
->vchnl_waitq
,
1156 (atomic_read(&iwdev
->vchnl_msgs
) == 1),
1157 I40IW_VCHNL_EVENT_TIMEOUT
);
1158 atomic_dec(&iwdev
->vchnl_msgs
);
1160 i40iw_pr_err("virt channel completion timeout = 0x%x\n", timeout_ret
);
1161 atomic_set(&iwdev
->vchnl_msgs
, 0);
1162 dev
->vchnl_up
= false;
1163 return I40IW_ERR_TIMEOUT
;
1165 wake_up(&dev
->vf_reqs
);
1170 * i40iw_cqp_cq_create_cmd - create a cq for the cqp
1171 * @dev: device pointer
1172 * @cq: pointer to created cq
1174 enum i40iw_status_code
i40iw_cqp_cq_create_cmd(struct i40iw_sc_dev
*dev
,
1175 struct i40iw_sc_cq
*cq
)
1177 struct i40iw_device
*iwdev
= (struct i40iw_device
*)dev
->back_dev
;
1178 struct i40iw_cqp
*iwcqp
= &iwdev
->cqp
;
1179 struct i40iw_cqp_request
*cqp_request
;
1180 struct cqp_commands_info
*cqp_info
;
1181 enum i40iw_status_code status
;
1183 cqp_request
= i40iw_get_cqp_request(iwcqp
, true);
1185 return I40IW_ERR_NO_MEMORY
;
1187 cqp_info
= &cqp_request
->info
;
1188 cqp_info
->cqp_cmd
= OP_CQ_CREATE
;
1189 cqp_info
->post_sq
= 1;
1190 cqp_info
->in
.u
.cq_create
.cq
= cq
;
1191 cqp_info
->in
.u
.cq_create
.scratch
= (uintptr_t)cqp_request
;
1192 status
= i40iw_handle_cqp_op(iwdev
, cqp_request
);
1194 i40iw_pr_err("CQP-OP Create QP fail");
1200 * i40iw_cqp_qp_create_cmd - create a qp for the cqp
1201 * @dev: device pointer
1202 * @qp: pointer to created qp
1204 enum i40iw_status_code
i40iw_cqp_qp_create_cmd(struct i40iw_sc_dev
*dev
,
1205 struct i40iw_sc_qp
*qp
)
1207 struct i40iw_device
*iwdev
= (struct i40iw_device
*)dev
->back_dev
;
1208 struct i40iw_cqp
*iwcqp
= &iwdev
->cqp
;
1209 struct i40iw_cqp_request
*cqp_request
;
1210 struct cqp_commands_info
*cqp_info
;
1211 struct i40iw_create_qp_info
*qp_info
;
1212 enum i40iw_status_code status
;
1214 cqp_request
= i40iw_get_cqp_request(iwcqp
, true);
1216 return I40IW_ERR_NO_MEMORY
;
1218 cqp_info
= &cqp_request
->info
;
1219 qp_info
= &cqp_request
->info
.in
.u
.qp_create
.info
;
1221 memset(qp_info
, 0, sizeof(*qp_info
));
1223 qp_info
->cq_num_valid
= true;
1224 qp_info
->next_iwarp_state
= I40IW_QP_STATE_RTS
;
1226 cqp_info
->cqp_cmd
= OP_QP_CREATE
;
1227 cqp_info
->post_sq
= 1;
1228 cqp_info
->in
.u
.qp_create
.qp
= qp
;
1229 cqp_info
->in
.u
.qp_create
.scratch
= (uintptr_t)cqp_request
;
1230 status
= i40iw_handle_cqp_op(iwdev
, cqp_request
);
1232 i40iw_pr_err("CQP-OP QP create fail");
1237 * i40iw_cqp_cq_destroy_cmd - destroy the cqp cq
1238 * @dev: device pointer
1239 * @cq: pointer to cq
1241 void i40iw_cqp_cq_destroy_cmd(struct i40iw_sc_dev
*dev
, struct i40iw_sc_cq
*cq
)
1243 struct i40iw_device
*iwdev
= (struct i40iw_device
*)dev
->back_dev
;
1245 i40iw_cq_wq_destroy(iwdev
, cq
);
1249 * i40iw_cqp_qp_destroy_cmd - destroy the cqp
1250 * @dev: device pointer
1251 * @qp: pointer to qp
1253 void i40iw_cqp_qp_destroy_cmd(struct i40iw_sc_dev
*dev
, struct i40iw_sc_qp
*qp
)
1255 struct i40iw_device
*iwdev
= (struct i40iw_device
*)dev
->back_dev
;
1256 struct i40iw_cqp
*iwcqp
= &iwdev
->cqp
;
1257 struct i40iw_cqp_request
*cqp_request
;
1258 struct cqp_commands_info
*cqp_info
;
1259 enum i40iw_status_code status
;
1261 cqp_request
= i40iw_get_cqp_request(iwcqp
, true);
1265 cqp_info
= &cqp_request
->info
;
1266 memset(cqp_info
, 0, sizeof(*cqp_info
));
1268 cqp_info
->cqp_cmd
= OP_QP_DESTROY
;
1269 cqp_info
->post_sq
= 1;
1270 cqp_info
->in
.u
.qp_destroy
.qp
= qp
;
1271 cqp_info
->in
.u
.qp_destroy
.scratch
= (uintptr_t)cqp_request
;
1272 cqp_info
->in
.u
.qp_destroy
.remove_hash_idx
= true;
1273 status
= i40iw_handle_cqp_op(iwdev
, cqp_request
);
1275 i40iw_pr_err("CQP QP_DESTROY fail");
1280 * i40iw_ieq_mpa_crc_ae - generate AE for crc error
1281 * @dev: hardware control device structure
1282 * @qp: hardware control qp
1284 void i40iw_ieq_mpa_crc_ae(struct i40iw_sc_dev
*dev
, struct i40iw_sc_qp
*qp
)
1286 struct i40iw_gen_ae_info info
;
1287 struct i40iw_device
*iwdev
= (struct i40iw_device
*)dev
->back_dev
;
1289 i40iw_debug(dev
, I40IW_DEBUG_AEQ
, "%s entered\n", __func__
);
1290 info
.ae_code
= I40IW_AE_LLP_RECEIVED_MPA_CRC_ERROR
;
1291 info
.ae_source
= I40IW_AE_SOURCE_RQ
;
1292 i40iw_gen_ae(iwdev
, qp
, &info
, false);
1296 * i40iw_init_hash_desc - initialize hash for crc calculation
1297 * @desc: cryption type
1299 enum i40iw_status_code
i40iw_init_hash_desc(struct shash_desc
**desc
)
1301 struct crypto_shash
*tfm
;
1302 struct shash_desc
*tdesc
;
1304 tfm
= crypto_alloc_shash("crc32c", 0, 0);
1306 return I40IW_ERR_MPA_CRC
;
1308 tdesc
= kzalloc(sizeof(*tdesc
) + crypto_shash_descsize(tfm
),
1311 crypto_free_shash(tfm
);
1312 return I40IW_ERR_MPA_CRC
;
1321 * i40iw_free_hash_desc - free hash desc
1322 * @desc: to be freed
1324 void i40iw_free_hash_desc(struct shash_desc
*desc
)
1327 crypto_free_shash(desc
->tfm
);
1333 * i40iw_alloc_query_fpm_buf - allocate buffer for fpm
1334 * @dev: hardware control device structure
1335 * @mem: buffer ptr for fpm to be allocated
1336 * @return: memory allocation status
1338 enum i40iw_status_code
i40iw_alloc_query_fpm_buf(struct i40iw_sc_dev
*dev
,
1339 struct i40iw_dma_mem
*mem
)
1341 enum i40iw_status_code status
;
1342 struct i40iw_device
*iwdev
= (struct i40iw_device
*)dev
->back_dev
;
1344 status
= i40iw_obj_aligned_mem(iwdev
, mem
, I40IW_QUERY_FPM_BUF_SIZE
,
1345 I40IW_FPM_QUERY_BUF_ALIGNMENT_MASK
);
1350 * i40iw_ieq_check_mpacrc - check if mpa crc is OK
1351 * @desc: desc for hash
1352 * @addr: address of buffer for crc
1353 * @length: length of buffer
1354 * @value: value to be compared
1356 enum i40iw_status_code
i40iw_ieq_check_mpacrc(struct shash_desc
*desc
,
1363 enum i40iw_status_code ret_code
= 0;
1365 crypto_shash_init(desc
);
1366 ret
= crypto_shash_update(desc
, addr
, length
);
1368 crypto_shash_final(desc
, (u8
*)&crc
);
1370 i40iw_pr_err("mpa crc check fail\n");
1371 ret_code
= I40IW_ERR_MPA_CRC
;
1377 * i40iw_ieq_get_qp - get qp based on quad in puda buffer
1378 * @dev: hardware control device structure
1379 * @buf: receive puda buffer on exception q
1381 struct i40iw_sc_qp
*i40iw_ieq_get_qp(struct i40iw_sc_dev
*dev
,
1382 struct i40iw_puda_buf
*buf
)
1384 struct i40iw_device
*iwdev
= (struct i40iw_device
*)dev
->back_dev
;
1385 struct i40iw_qp
*iwqp
;
1386 struct i40iw_cm_node
*cm_node
;
1387 u32 loc_addr
[4], rem_addr
[4];
1388 u16 loc_port
, rem_port
;
1389 struct ipv6hdr
*ip6h
;
1390 struct iphdr
*iph
= (struct iphdr
*)buf
->iph
;
1391 struct tcphdr
*tcph
= (struct tcphdr
*)buf
->tcph
;
1393 if (iph
->version
== 4) {
1394 memset(loc_addr
, 0, sizeof(loc_addr
));
1395 loc_addr
[0] = ntohl(iph
->daddr
);
1396 memset(rem_addr
, 0, sizeof(rem_addr
));
1397 rem_addr
[0] = ntohl(iph
->saddr
);
1399 ip6h
= (struct ipv6hdr
*)buf
->iph
;
1400 i40iw_copy_ip_ntohl(loc_addr
, ip6h
->daddr
.in6_u
.u6_addr32
);
1401 i40iw_copy_ip_ntohl(rem_addr
, ip6h
->saddr
.in6_u
.u6_addr32
);
1403 loc_port
= ntohs(tcph
->dest
);
1404 rem_port
= ntohs(tcph
->source
);
1406 cm_node
= i40iw_find_node(&iwdev
->cm_core
, rem_port
, rem_addr
, loc_port
,
1407 loc_addr
, false, true);
1410 iwqp
= cm_node
->iwqp
;
1411 return &iwqp
->sc_qp
;
1415 * i40iw_ieq_update_tcpip_info - update tcpip in the buffer
1416 * @buf: puda to update
1417 * @length: length of buffer
1418 * @seqnum: seq number for tcp
1420 void i40iw_ieq_update_tcpip_info(struct i40iw_puda_buf
*buf
, u16 length
, u32 seqnum
)
1422 struct tcphdr
*tcph
;
1426 u8
*addr
= (u8
*)buf
->mem
.va
;
1428 iphlen
= (buf
->ipv4
) ? 20 : 40;
1429 iph
= (struct iphdr
*)(addr
+ buf
->maclen
);
1430 tcph
= (struct tcphdr
*)(addr
+ buf
->maclen
+ iphlen
);
1431 packetsize
= length
+ buf
->tcphlen
+ iphlen
;
1433 iph
->tot_len
= htons(packetsize
);
1434 tcph
->seq
= htonl(seqnum
);
1438 * i40iw_puda_get_tcpip_info - get tcpip info from puda buffer
1439 * @info: to get information
1442 enum i40iw_status_code
i40iw_puda_get_tcpip_info(struct i40iw_puda_completion_info
*info
,
1443 struct i40iw_puda_buf
*buf
)
1446 struct ipv6hdr
*ip6h
;
1447 struct tcphdr
*tcph
;
1450 u8
*mem
= (u8
*)buf
->mem
.va
;
1451 struct ethhdr
*ethh
= (struct ethhdr
*)buf
->mem
.va
;
1453 if (ethh
->h_proto
== htons(0x8100)) {
1454 info
->vlan_valid
= true;
1455 buf
->vlan_id
= ntohs(((struct vlan_ethhdr
*)ethh
)->h_vlan_TCI
) & VLAN_VID_MASK
;
1457 buf
->maclen
= (info
->vlan_valid
) ? 18 : 14;
1458 iphlen
= (info
->l3proto
) ? 40 : 20;
1459 buf
->ipv4
= (info
->l3proto
) ? false : true;
1460 buf
->iph
= mem
+ buf
->maclen
;
1461 iph
= (struct iphdr
*)buf
->iph
;
1463 buf
->tcph
= buf
->iph
+ iphlen
;
1464 tcph
= (struct tcphdr
*)buf
->tcph
;
1467 pkt_len
= ntohs(iph
->tot_len
);
1469 ip6h
= (struct ipv6hdr
*)buf
->iph
;
1470 pkt_len
= ntohs(ip6h
->payload_len
) + iphlen
;
1473 buf
->totallen
= pkt_len
+ buf
->maclen
;
1475 if (info
->payload_len
< buf
->totallen
) {
1476 i40iw_pr_err("payload_len = 0x%x totallen expected0x%x\n",
1477 info
->payload_len
, buf
->totallen
);
1478 return I40IW_ERR_INVALID_SIZE
;
1481 buf
->tcphlen
= (tcph
->doff
) << 2;
1482 buf
->datalen
= pkt_len
- iphlen
- buf
->tcphlen
;
1483 buf
->data
= (buf
->datalen
) ? buf
->tcph
+ buf
->tcphlen
: NULL
;
1484 buf
->hdrlen
= buf
->maclen
+ iphlen
+ buf
->tcphlen
;
1485 buf
->seqnum
= ntohl(tcph
->seq
);
1490 * i40iw_hw_stats_timeout - Stats timer-handler which updates all HW stats
1491 * @vsi: pointer to the vsi structure
1493 static void i40iw_hw_stats_timeout(struct timer_list
*t
)
1495 struct i40iw_vsi_pestat
*pf_devstat
= from_timer(pf_devstat
, t
,
1497 struct i40iw_sc_vsi
*sc_vsi
= pf_devstat
->vsi
;
1498 struct i40iw_sc_dev
*pf_dev
= sc_vsi
->dev
;
1499 struct i40iw_vsi_pestat
*vf_devstat
= NULL
;
1501 unsigned long flags
;
1504 i40iw_hw_stats_read_all(pf_devstat
, &pf_devstat
->hw_stats
);
1506 for (iw_vf_idx
= 0; iw_vf_idx
< I40IW_MAX_PE_ENABLED_VF_COUNT
; iw_vf_idx
++) {
1507 spin_lock_irqsave(&pf_devstat
->lock
, flags
);
1508 if (pf_dev
->vf_dev
[iw_vf_idx
]) {
1509 if (pf_dev
->vf_dev
[iw_vf_idx
]->stats_initialized
) {
1510 vf_devstat
= &pf_dev
->vf_dev
[iw_vf_idx
]->pestat
;
1511 i40iw_hw_stats_read_all(vf_devstat
, &vf_devstat
->hw_stats
);
1514 spin_unlock_irqrestore(&pf_devstat
->lock
, flags
);
1517 mod_timer(&pf_devstat
->stats_timer
,
1518 jiffies
+ msecs_to_jiffies(STATS_TIMER_DELAY
));
1522 * i40iw_hw_stats_start_timer - Start periodic stats timer
1523 * @vsi: pointer to the vsi structure
1525 void i40iw_hw_stats_start_timer(struct i40iw_sc_vsi
*vsi
)
1527 struct i40iw_vsi_pestat
*devstat
= vsi
->pestat
;
1529 timer_setup(&devstat
->stats_timer
, i40iw_hw_stats_timeout
, 0);
1530 mod_timer(&devstat
->stats_timer
,
1531 jiffies
+ msecs_to_jiffies(STATS_TIMER_DELAY
));
1535 * i40iw_hw_stats_stop_timer - Delete periodic stats timer
1536 * @vsi: pointer to the vsi structure
1538 void i40iw_hw_stats_stop_timer(struct i40iw_sc_vsi
*vsi
)
1540 struct i40iw_vsi_pestat
*devstat
= vsi
->pestat
;
1542 del_timer_sync(&devstat
->stats_timer
);