ivampiresp/Spdk
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

nvmf: Quiesce I/O before closing spdk_nvmf_qpairs

Browse Source 
Change-Id: Iff58943f3f9db39b6fce1437a0cfe7380991daa6
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-on: https://review.gerrithub.io/412078
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
This commit is contained in:
Ben Walker 2018-05-22 10:34:56 -07:00 committed by Jim Harris
parent ed97638ccd
commit 72800826ec
3 changed files with 38 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

27
lib/nvmf/ctrlr.c
View File

@ -455,27 +455,40 @@ _spdk_nvmf_ctrlr_remove_qpair(void *ctx)
}
}
static void
_spdk_nvmf_qpair_quiesced(void *cb_arg, int status)
{
struct spdk_nvmf_qpair *qpair = cb_arg;
/* Send a message to the controller thread to remove the qpair from its internal
* list. */
spdk_thread_send_msg(qpair->ctrlr->admin_qpair->group->thread, _spdk_nvmf_ctrlr_remove_qpair,
qpair);
}
static void
_spdk_nvmf_qpair_deactivate(void *ctx)
{
struct spdk_nvmf_qpair *qpair = ctx;
struct spdk_nvmf_ctrlr *ctrlr;
assert(qpair->state == SPDK_NVMF_QPAIR_ACTIVE);
qpair->state = SPDK_NVMF_QPAIR_DEACTIVATING;
ctrlr = qpair->ctrlr;
if (ctrlr == NULL) {
if (qpair->ctrlr == NULL) {
/* This qpair was never added to a controller. Skip a step
* and destroy it immediately. */
_spdk_nvmf_qpair_destroy(qpair);
return;
}
/* Send a message to the controller thread to remove the qpair from its internal
* list. */
spdk_thread_send_msg(ctrlr->admin_qpair->group->thread, _spdk_nvmf_ctrlr_remove_qpair, qpair);
/* Check for outstanding I/O */
if (!TAILQ_EMPTY(&qpair->outstanding)) {
qpair->state_cb = _spdk_nvmf_qpair_quiesced;
qpair->state_cb_arg = qpair;
return;
}
_spdk_nvmf_qpair_quiesced(qpair, 0);
}
void

4
lib/nvmf/nvmf_internal.h
View File

@ -62,6 +62,8 @@ enum spdk_nvmf_qpair_state {
SPDK_NVMF_QPAIR_DEACTIVATING,
};
typedef void (*spdk_nvmf_state_change_done)(void *cb_arg, int status);
struct spdk_nvmf_tgt {
struct spdk_nvmf_tgt_opts opts;
@ -155,6 +157,8 @@ struct spdk_nvmf_ns {
struct spdk_nvmf_qpair {
enum spdk_nvmf_qpair_state state;
spdk_nvmf_state_change_done state_cb;
void *state_cb_arg;
struct spdk_nvmf_transport *transport;
struct spdk_nvmf_ctrlr *ctrlr;

15
lib/nvmf/request.c
View File

@ -49,21 +49,34 @@ int
spdk_nvmf_request_complete(struct spdk_nvmf_request *req)
{
struct spdk_nvme_cpl *rsp = &req->rsp->nvme_cpl;
struct spdk_nvmf_qpair *qpair;
rsp->sqid = 0;
rsp->status.p = 0;
rsp->cid = req->cmd->nvme_cmd.cid;
qpair = req->qpair;
SPDK_DEBUGLOG(SPDK_LOG_NVMF,
"cpl: cid=%u cdw0=0x%08x rsvd1=%u status=0x%04x\n",
rsp->cid, rsp->cdw0, rsp->rsvd1,
*(uint16_t *)&rsp->status);
TAILQ_REMOVE(&req->qpair->outstanding, req, link);
TAILQ_REMOVE(&qpair->outstanding, req, link);
if (spdk_nvmf_transport_req_complete(req)) {
SPDK_ERRLOG("Transport request completion error!\n");
}
if (qpair->state == SPDK_NVMF_QPAIR_DEACTIVATING) {
assert(qpair->state_cb != NULL);
if (TAILQ_EMPTY(&qpair->outstanding)) {
qpair->state_cb(qpair->state_cb_arg, 0);
}
} else {
assert(qpair->state == SPDK_NVMF_QPAIR_ACTIVE);
}
return 0;
}