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bdev/nvme: check discovery service trids during start

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Check that we're not already connected to a discovery service that has
the same address (or has a referall to) as the service we're trying to
start.

Signed-off-by: Konrad Sztyber <konrad.sztyber@intel.com>
Change-Id: I84863fd959f62b30e9a348f69d10c7f1edffda7a
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/12627
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Community-CI: Mellanox Build Bot
Community-CI: Broadcom CI <spdk-ci.pdl@broadcom.com>
Reviewed-by: Shuhei Matsumoto <smatsumoto@nvidia.com>
Reviewed-by: Aleksey Marchuk <alexeymar@nvidia.com>
This commit is contained in:
Konrad Sztyber 2022-05-11 13:15:31 +02:00 committed by Tomasz Zawadzki
parent 33c14a1445
commit ef675d38c1
2 changed files with 19 additions and 1 deletions
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14
module/bdev/nvme/bdev_nvme.c
View File

@ -5170,10 +5170,23 @@ bdev_nvme_start_discovery(struct spdk_nvme_transport_id *trid,
struct discovery_ctx *ctx;
struct discovery_entry_ctx *discovery_entry_ctx;
snprintf(trid->subnqn, sizeof(trid->subnqn), "%s", SPDK_NVMF_DISCOVERY_NQN);
TAILQ_FOREACH(ctx, &g_discovery_ctxs, tailq) {
if (strcmp(ctx->name, base_name) == 0) {
return -EEXIST;
}
if (ctx->entry_ctx_in_use != NULL) {
if (!spdk_nvme_transport_id_compare(trid, &ctx->entry_ctx_in_use->trid)) {
return -EEXIST;
}
}
TAILQ_FOREACH(discovery_entry_ctx, &ctx->discovery_entry_ctxs, tailq) {
if (!spdk_nvme_transport_id_compare(trid, &discovery_entry_ctx->trid)) {
return -EEXIST;
}
}
}
ctx = calloc(1, sizeof(*ctx));
@ -5200,7 +5213,6 @@ bdev_nvme_start_discovery(struct spdk_nvme_transport_id *trid,
ctx->cb_ctx = cb_ctx;
TAILQ_INIT(&ctx->nvm_entry_ctxs);
TAILQ_INIT(&ctx->discovery_entry_ctxs);
snprintf(trid->subnqn, sizeof(trid->subnqn), "%s", SPDK_NVMF_DISCOVERY_NQN);
memcpy(&ctx->trid, trid, sizeof(*trid));
/* Even if user did not specify hostnqn, we can still strdup("\0"); */
ctx->hostnqn = strdup(ctx->drv_opts.hostnqn);

6
test/nvmf/host/discovery.sh
View File

@ -145,6 +145,12 @@ NOT $rpc_py -s $HOST_SOCK bdev_nvme_start_discovery -b nvme -t $TEST_TRANSPORT \
[[ $(get_discovery_ctrlrs) == "nvme" ]]
[[ $(get_bdev_list) == "nvme0n1 nvme0n2" ]]
# Make sure that it's also impossible to start the discovery using the same trid
NOT $rpc_py -s $HOST_SOCK bdev_nvme_start_discovery -b nvme_second -t $TEST_TRANSPORT \
-a $NVMF_FIRST_TARGET_IP -s $DISCOVERY_PORT -f ipv4 -q $HOST_NQN -w
[[ $(get_discovery_ctrlrs) == "nvme" ]]
[[ $(get_bdev_list) == "nvme0n1 nvme0n2" ]]
trap - SIGINT SIGTERM EXIT
kill $hostpid