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nvme: add qpair is_connecting flag

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This will be used on the adminq, and set while the
qpair is connecting.  It allows the qpair_process_completions
routine to know that it should still try to process completions,
even if the controller is resetting.

Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: I377b9c934295eb5f45f03efd90c2a268defb4bd4

Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/453938
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
This commit is contained in:
Jim Harris 2019-05-09 16:45:46 -07:00 committed by Changpeng Liu
parent 36d2149a70
commit 5309873d39
3 changed files with 8 additions and 1 deletions
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1
lib/nvme/nvme_internal.h
View File

@ -331,6 +331,7 @@ struct spdk_nvme_qpair {
uint8_t qprio;
uint8_t is_enabled : 1;
uint8_t is_connecting: 1;
/*
* Members for handling IO qpair deletion inside of a completion context.

2
lib/nvme/nvme_qpair.c
View File

@ -425,7 +425,7 @@ spdk_nvme_qpair_process_completions(struct spdk_nvme_qpair *qpair, uint32_t max_
return 0;
}
if (spdk_unlikely(!nvme_qpair_check_enabled(qpair))) {
if (spdk_unlikely(!nvme_qpair_check_enabled(qpair) && !qpair->is_connecting)) {
/*
* qpair is not enabled, likely because a controller reset is
* in progress.

6
lib/nvme/nvme_transport.c
View File

@ -182,7 +182,13 @@ nvme_transport_ctrlr_delete_io_qpair(struct spdk_nvme_ctrlr *ctrlr, struct spdk_
int
nvme_transport_ctrlr_connect_qpair(struct spdk_nvme_ctrlr *ctrlr, struct spdk_nvme_qpair *qpair)
{
if (nvme_qpair_is_admin_queue(qpair)) {
qpair->is_connecting = 1;
}
NVME_TRANSPORT_CALL(ctrlr->trid.trtype, ctrlr_connect_qpair, (ctrlr, qpair));
if (nvme_qpair_is_admin_queue(qpair)) {
qpair->is_connecting = 0;
}
}
volatile struct spdk_nvme_registers *