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nvmf: resume queued zcopy requests

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The zero-copy requests can also be queued when a subsystem is paused, so
we need to properly resume and submit them by using zcopy_start.

Since only requests that haven't received the zero-copy buffer (i.e.
before zcopy_start was called) can be queued, we don't need to bother
with checking zcopy_phase.

Signed-off-by: Konrad Sztyber <konrad.sztyber@intel.com>
Change-Id: Ie629688f6961eb2ae05741df496720b91be4d80d
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/10792
Community-CI: Broadcom CI <spdk-ci.pdl@broadcom.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
This commit is contained in:
Konrad Sztyber 2021-12-10 15:42:54 +01:00 committed by Tomasz Zawadzki
parent 58701cc4c5
commit 974a32b72e
3 changed files with 8 additions and 2 deletions
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8
lib/nvmf/nvmf.c
View File

@ -1591,8 +1591,12 @@ nvmf_poll_group_resume_subsystem(struct spdk_nvmf_poll_group *group,
/* Release all queued requests */
TAILQ_FOREACH_SAFE(req, &sgroup->queued, link, tmp) {
TAILQ_REMOVE(&sgroup->queued, req, link);
assert(req->zcopy_phase == NVMF_ZCOPY_PHASE_NONE);
spdk_nvmf_request_exec(req);
if (spdk_nvmf_request_using_zcopy(req)) {
spdk_nvmf_request_zcopy_start(req);
} else {
spdk_nvmf_request_exec(req);
}
}
fini:
if (cb_fn) {

1
test/unit/lib/nvmf/fc.c/fc_ut.c
View File

@ -133,6 +133,7 @@ DEFINE_STUB_V(rte_hash_free, (struct rte_hash *h));
DEFINE_STUB(nvmf_fc_lld_port_add, int, (struct spdk_nvmf_fc_port *fc_port), 0);
DEFINE_STUB(nvmf_fc_lld_port_remove, int, (struct spdk_nvmf_fc_port *fc_port), 0);
DEFINE_STUB_V(spdk_nvmf_request_zcopy_start, (struct spdk_nvmf_request *req));
DEFINE_STUB_V(spdk_nvmf_request_zcopy_end, (struct spdk_nvmf_request *req, bool commit));
const char *

1
test/unit/lib/nvmf/nvmf.c/nvmf_ut.c
View File

@ -121,6 +121,7 @@ DEFINE_STUB(nvmf_transport_qpair_get_listen_trid, int,
(struct spdk_nvmf_qpair *qpair,
struct spdk_nvme_transport_id *trid), 0);
DEFINE_STUB_V(spdk_nvmf_request_exec, (struct spdk_nvmf_request *req));
DEFINE_STUB_V(spdk_nvmf_request_zcopy_start, (struct spdk_nvmf_request *req));
DEFINE_STUB(spdk_nvmf_get_transport_name, const char *,
(struct spdk_nvmf_transport *transport), NULL);
DEFINE_STUB(spdk_nvmf_transport_destroy, int, (struct spdk_nvmf_transport *transport,