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bdev/nvme: Factor out check if path should be deleted into a helper function

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This improves the readability and makes us easier to add more changes.

Signed-off-by: Shuhei Matsumoto <smatsumoto@nvidia.com>
Change-Id: I55d7925d70f2a204f65a81f3fc44cf96b69c3ebe
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/16709
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Aleksey Marchuk <alexeymar@nvidia.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
This commit is contained in:
Shuhei Matsumoto 2023-01-30 11:27:34 +09:00 committed by Tomasz Zawadzki
parent 07ca24ec59
commit 4757c05fa1
1 changed files with 56 additions and 48 deletions
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104
module/bdev/nvme/bdev_nvme.c
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@ -5305,6 +5305,60 @@ bdev_nvme_create(struct spdk_nvme_transport_id *trid,
return 0;
}
static bool
nvme_path_should_delete(struct nvme_path_id *p, const struct nvme_path_id *path_id)
{
if (path_id->trid.trtype != 0) {
if (path_id->trid.trtype == SPDK_NVME_TRANSPORT_CUSTOM) {
if (strcasecmp(path_id->trid.trstring, p->trid.trstring) != 0) {
return false;
}
} else {
if (path_id->trid.trtype != p->trid.trtype) {
return false;
}
}
}
if (!spdk_mem_all_zero(path_id->trid.traddr, sizeof(path_id->trid.traddr))) {
if (strcasecmp(path_id->trid.traddr, p->trid.traddr) != 0) {
return false;
}
}
if (path_id->trid.adrfam != 0) {
if (path_id->trid.adrfam != p->trid.adrfam) {
return false;
}
}
if (!spdk_mem_all_zero(path_id->trid.trsvcid, sizeof(path_id->trid.trsvcid))) {
if (strcasecmp(path_id->trid.trsvcid, p->trid.trsvcid) != 0) {
return false;
}
}
if (!spdk_mem_all_zero(path_id->trid.subnqn, sizeof(path_id->trid.subnqn))) {
if (strcmp(path_id->trid.subnqn, p->trid.subnqn) != 0) {
return false;
}
}
if (!spdk_mem_all_zero(path_id->hostid.hostaddr, sizeof(path_id->hostid.hostaddr))) {
if (strcmp(path_id->hostid.hostaddr, p->hostid.hostaddr) != 0) {
return false;
}
}
if (!spdk_mem_all_zero(path_id->hostid.hostsvcid, sizeof(path_id->hostid.hostsvcid))) {
if (strcmp(path_id->hostid.hostsvcid, p->hostid.hostsvcid) != 0) {
return false;
}
}
return true;
}
int
bdev_nvme_delete(const char *name, const struct nvme_path_id *path_id)
{
@ -5325,52 +5379,8 @@ bdev_nvme_delete(const char *name, const struct nvme_path_id *path_id)
TAILQ_FOREACH_SAFE(nvme_ctrlr, &nbdev_ctrlr->ctrlrs, tailq, tmp_nvme_ctrlr) {
TAILQ_FOREACH_REVERSE_SAFE(p, &nvme_ctrlr->trids, nvme_paths, link, t) {
if (path_id->trid.trtype != 0) {
if (path_id->trid.trtype == SPDK_NVME_TRANSPORT_CUSTOM) {
if (strcasecmp(path_id->trid.trstring, p->trid.trstring) != 0) {
continue;
}
} else {
if (path_id->trid.trtype != p->trid.trtype) {
continue;
}
}
}
if (!spdk_mem_all_zero(path_id->trid.traddr, sizeof(path_id->trid.traddr))) {
if (strcasecmp(path_id->trid.traddr, p->trid.traddr) != 0) {
continue;
}
}
if (path_id->trid.adrfam != 0) {
if (path_id->trid.adrfam != p->trid.adrfam) {
continue;
}
}
if (!spdk_mem_all_zero(path_id->trid.trsvcid, sizeof(path_id->trid.trsvcid))) {
if (strcasecmp(path_id->trid.trsvcid, p->trid.trsvcid) != 0) {
continue;
}
}
if (!spdk_mem_all_zero(path_id->trid.subnqn, sizeof(path_id->trid.subnqn))) {
if (strcmp(path_id->trid.subnqn, p->trid.subnqn) != 0) {
continue;
}
}
if (!spdk_mem_all_zero(path_id->hostid.hostaddr, sizeof(path_id->hostid.hostaddr))) {
if (strcmp(path_id->hostid.hostaddr, p->hostid.hostaddr) != 0) {
continue;
}
}
if (!spdk_mem_all_zero(path_id->hostid.hostsvcid, sizeof(path_id->hostid.hostsvcid))) {
if (strcmp(path_id->hostid.hostsvcid, p->hostid.hostsvcid) != 0) {
continue;
}
if (!nvme_path_should_delete(p, path_id)) {
continue;
}
/* If we made it here, then this path is a match! Now we need to remove it. */
@ -5394,8 +5404,6 @@ bdev_nvme_delete(const char *name, const struct nvme_path_id *path_id)
if (rc < 0 && rc != -ENXIO) {
return rc;
}
}
}