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nvmf: Keep track of outstanding requests

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This will allow us to later quiesce all requests for
a given subsystem.

Change-Id: I50a4df9bf1f65a2fc6668295cf9978d2099f6507
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-on: https://review.gerrithub.io/406450
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
This commit is contained in:
Ben Walker 2018-04-04 10:39:13 -07:00
parent 16d0fbd0d6
commit 7740b02e36
3 changed files with 18 additions and 0 deletions
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1
lib/nvmf/nvmf.c
View File

@ -549,6 +549,7 @@ spdk_nvmf_poll_group_add_subsystem(struct spdk_nvmf_poll_group *group,
sgroup = &group->sgroups[subsystem->id];
sgroup->state = SPDK_NVMF_SUBSYSTEM_ACTIVE;
TAILQ_INIT(&sgroup->queued);
TAILQ_INIT(&sgroup->outstanding);
return 0;
}

1
lib/nvmf/nvmf_internal.h
View File

@ -92,6 +92,7 @@ struct spdk_nvmf_subsystem_poll_group {
enum spdk_nvmf_subsystem_state state;
TAILQ_HEAD(, spdk_nvmf_request) queued;
TAILQ_HEAD(, spdk_nvmf_request) outstanding;
};
struct spdk_nvmf_poll_group {

16
lib/nvmf/request.c
View File

@ -49,6 +49,7 @@ int
spdk_nvmf_request_complete(struct spdk_nvmf_request *req)
{
struct spdk_nvme_cpl *rsp = &req->rsp->nvme_cpl;
struct spdk_nvmf_capsule_cmd *cap_hdr;
rsp->sqid = 0;
rsp->status.p = 0;
@ -59,6 +60,18 @@ spdk_nvmf_request_complete(struct spdk_nvmf_request *req)
rsp->cid, rsp->cdw0, rsp->rsvd1,
*(uint16_t *)&rsp->status);
cap_hdr = &req->cmd->nvmf_cmd;
if (spdk_unlikely(req->cmd->nvmf_cmd.opcode == SPDK_NVME_OPC_FABRIC &&
cap_hdr->fctype == SPDK_NVMF_FABRIC_COMMAND_CONNECT)) {
/* CONNECT commands don't actually get placed on the outstanding list. */
} else {
struct spdk_nvmf_subsystem_poll_group *sgroup;
sgroup = &req->qpair->group->sgroups[req->qpair->ctrlr->subsys->id];
TAILQ_REMOVE(&sgroup->outstanding, req, link);
}
if (spdk_nvmf_transport_req_complete(req)) {
SPDK_ERRLOG("Transport request completion error!\n");
}
@ -126,6 +139,9 @@ spdk_nvmf_request_exec(struct spdk_nvmf_request *req)
TAILQ_INSERT_TAIL(&sgroup->queued, req, link);
return;
}
/* Place the request on the outstanding list so we can keep track of it */
TAILQ_INSERT_TAIL(&sgroup->outstanding, req, link);
}
if (spdk_unlikely(req->cmd->nvmf_cmd.opcode == SPDK_NVME_OPC_FABRIC)) {