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lib/nvmf: Accept KATO for discovery controller

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Some NVMe applications require SPDK NVMe-oF target to support
KATO for discovery controller.  Hence change discovery controller
to accept KATO.  Update unit tests accordingly.

Fixes the issue #1089.

Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/476810 (master)
Community-CI: Broadcom SPDK FC-NVMe CI <spdk-ci.pdl@broadcom.com>
Community-CI: SPDK CI Jenkins <sys_sgci@intel.com>

(cherry picked from commit e37fc5a32a)
Change-Id: Ib56e3b0b0faaf58276f9e692704763c1e5e5b042
Signed-off-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/478361
Tested-by: SPDK CI Jenkins <sys_sgci@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:
Shuhei Matsumoto 2019-12-04 17:32:38 -05:00 committed by Tomasz Zawadzki
parent 23fd32ce2f
commit 0a5c002bb0
2 changed files with 35 additions and 16 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

16
lib/nvmf/ctrlr.c
View File

@ -292,17 +292,9 @@ spdk_nvmf_ctrlr_create(struct spdk_nvmf_subsystem *subsystem,
ctrlr->feat.volatile_write_cache.bits.wce = 1;
if (ctrlr->subsys->subtype == SPDK_NVMF_SUBTYPE_DISCOVERY) {
/* Don't accept keep-alive timeout for discovery controllers */
if (ctrlr->feat.keep_alive_timer.bits.kato != 0) {
SPDK_ERRLOG("Discovery controller don't accept keep-alive timeout\n");
spdk_bit_array_free(&ctrlr->qpair_mask);
free(ctrlr);
return NULL;
}
/*
* Discovery controllers use some arbitrary high value in order
* to cleanup stale discovery sessions
* If keep-alive timeout is not set, discovery controllers use some
* arbitrary high value in order to cleanup stale discovery sessions
*
* From the 1.0a nvme-of spec:
* "The Keep Alive command is reserved for
@ -314,7 +306,9 @@ spdk_nvmf_ctrlr_create(struct spdk_nvmf_subsystem *subsystem,
* actions for Keep Alive Timer expiration".
* kato is in millisecond.
*/
ctrlr->feat.keep_alive_timer.bits.kato = NVMF_DISC_KATO_IN_MS;
if (ctrlr->feat.keep_alive_timer.bits.kato == 0) {
ctrlr->feat.keep_alive_timer.bits.kato = NVMF_DISC_KATO_IN_MS;
}
}
/* Subtract 1 for admin queue, 1 for 0's based */

35
test/unit/lib/nvmf/ctrlr.c/ctrlr_ut.c
View File

@ -583,19 +583,44 @@ test_connect(void)
CU_ASSERT(rsp.connect_rsp.status_code_specific.invalid.ipo == 42);
CU_ASSERT(qpair.ctrlr == NULL);
/* I/O connect to discovery controller keep-alive-timeout should be 0 */
/* I/O connect to discovery controller with keep-alive-timeout != 0 */
cmd.connect_cmd.qid = 0;
cmd.connect_cmd.kato = 120000;
memset(&rsp, 0, sizeof(rsp));
subsystem.subtype = SPDK_NVMF_SUBTYPE_DISCOVERY;
subsystem.state = SPDK_NVMF_SUBSYSTEM_ACTIVE;
TAILQ_INSERT_TAIL(&qpair.outstanding, &req, link);
rc = spdk_nvmf_ctrlr_connect(&req);
poll_threads();
CU_ASSERT(rc == SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE);
CU_ASSERT(rsp.nvme_cpl.status.sct == SPDK_NVME_SCT_GENERIC);
CU_ASSERT(rsp.nvme_cpl.status.sc == SPDK_NVME_SC_INTERNAL_DEVICE_ERROR);
CU_ASSERT(qpair.ctrlr == NULL);
CU_ASSERT(rc == SPDK_NVMF_REQUEST_EXEC_STATUS_ASYNCHRONOUS);
CU_ASSERT(nvme_status_success(&rsp.nvme_cpl.status));
CU_ASSERT(qpair.ctrlr != NULL);
CU_ASSERT(qpair.ctrlr->keep_alive_poller != NULL);
spdk_nvmf_ctrlr_stop_keep_alive_timer(qpair.ctrlr);
spdk_bit_array_free(&qpair.ctrlr->qpair_mask);
free(qpair.ctrlr);
qpair.ctrlr = NULL;
/* I/O connect to discovery controller with keep-alive-timeout == 0.
* Then, a fixed timeout value is set to keep-alive-timeout.
*/
cmd.connect_cmd.kato = 0;
memset(&rsp, 0, sizeof(rsp));
subsystem.subtype = SPDK_NVMF_SUBTYPE_DISCOVERY;
subsystem.state = SPDK_NVMF_SUBSYSTEM_ACTIVE;
TAILQ_INSERT_TAIL(&qpair.outstanding, &req, link);
rc = spdk_nvmf_ctrlr_connect(&req);
poll_threads();
CU_ASSERT(rc == SPDK_NVMF_REQUEST_EXEC_STATUS_ASYNCHRONOUS);
CU_ASSERT(nvme_status_success(&rsp.nvme_cpl.status));
CU_ASSERT(qpair.ctrlr != NULL);
CU_ASSERT(qpair.ctrlr->keep_alive_poller != NULL);
spdk_nvmf_ctrlr_stop_keep_alive_timer(qpair.ctrlr);
spdk_bit_array_free(&qpair.ctrlr->qpair_mask);
free(qpair.ctrlr);
qpair.ctrlr = NULL;
cmd.connect_cmd.qid = 1;
cmd.connect_cmd.kato = 120000;
subsystem.subtype = SPDK_NVMF_SUBTYPE_NVME;
/* I/O connect to disabled controller */