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nvme/tcp: add nvme_tcp_qpair_check_timeout function.

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To enable the timeout function.

Change-Id: Id5c40848957743683b6a5c2d085e7f777f14497d
Signed-off-by: Ziye Yang <optimistyzy@gmail.com>
Reviewed-on: https://review.gerrithub.io/c/444803
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
This commit is contained in:
Ziye Yang 2019-02-15 19:22:54 +08:00 committed by Jim Harris
parent c3da46d5f3
commit d4875ed89e
1 changed files with 43 additions and 0 deletions
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43
lib/nvme/nvme_tcp.c
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@ -1554,6 +1554,45 @@ nvme_tcp_read_pdu(struct nvme_tcp_qpair *tqpair, uint32_t *reaped)
return rc;
}
static void
nvme_tcp_qpair_check_timeout(struct spdk_nvme_qpair *qpair)
{
uint64_t t02;
struct nvme_tcp_req *tcp_req, *tmp;
struct nvme_tcp_qpair *tqpair = nvme_tcp_qpair(qpair);
struct spdk_nvme_ctrlr *ctrlr = qpair->ctrlr;
struct spdk_nvme_ctrlr_process *active_proc;
/* Don't check timeouts during controller initialization. */
if (ctrlr->state != NVME_CTRLR_STATE_READY) {
return;
}
if (nvme_qpair_is_admin_queue(qpair)) {
active_proc = spdk_nvme_ctrlr_get_current_process(ctrlr);
} else {
active_proc = qpair->active_proc;
}
/* Only check timeouts if the current process has a timeout callback. */
if (active_proc == NULL || active_proc->timeout_cb_fn == NULL) {
return;
}
t02 = spdk_get_ticks();
TAILQ_FOREACH_SAFE(tcp_req, &tqpair->outstanding_reqs, link, tmp) {
assert(tcp_req->req != NULL);
if (nvme_request_check_timeout(tcp_req->req, tcp_req->cid, active_proc, t02)) {
/*
* The requests are in order, so as soon as one has not timed out,
* stop iterating.
*/
break;
}
}
}
int
nvme_tcp_qpair_process_completions(struct spdk_nvme_qpair *qpair, uint32_t max_completions)
{
@ -1586,6 +1625,10 @@ nvme_tcp_qpair_process_completions(struct spdk_nvme_qpair *qpair, uint32_t max_c
} while (reaped < max_completions);
if (spdk_unlikely(tqpair->qpair.ctrlr->timeout_enabled)) {
nvme_tcp_qpair_check_timeout(qpair);
}
return reaped;
}