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bdev/nvme: change hotplug poller with asynchronous probe API

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Change-Id: Id198e8ec79c84743ef5025e1552c4ce45ca30445
Signed-off-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/445078
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Darek Stojaczyk <dariusz.stojaczyk@intel.com>
Reviewed-by: wuzhouhui <wuzhouhui@kingsoft.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
This commit is contained in:
Changpeng Liu 2019-03-05 02:32:34 -05:00 committed by Darek Stojaczyk
parent 8129ede1c8
commit add76a3515
1 changed files with 21 additions and 2 deletions
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23
lib/bdev/nvme/bdev_nvme.c
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@ -117,6 +117,7 @@ static uint64_t g_nvme_hotplug_poll_period_us = NVME_HOTPLUG_POLL_PERIOD_DEFAULT
static bool g_nvme_hotplug_enabled = false;
static struct spdk_thread *g_bdev_nvme_init_thread;
static struct spdk_poller *g_hotplug_poller;
static struct spdk_nvme_probe_ctx *g_hotplug_probe_ctx;
static char *g_nvme_hostnqn = NULL;
static void nvme_ctrlr_create_bdevs(struct nvme_bdev_ctrlr *nvme_bdev_ctrlr);
@ -1059,8 +1060,25 @@ remove_cb(void *cb_ctx, struct spdk_nvme_ctrlr *ctrlr)
static int
bdev_nvme_hotplug(void *arg)
{
if (spdk_nvme_probe(NULL, NULL, hotplug_probe_cb, attach_cb, remove_cb) != 0) {
SPDK_ERRLOG("spdk_nvme_probe() failed\n");
struct spdk_nvme_transport_id trid_pcie;
int done;
if (!g_hotplug_probe_ctx) {
memset(&trid_pcie, 0, sizeof(trid_pcie));
trid_pcie.trtype = SPDK_NVME_TRANSPORT_PCIE;
g_hotplug_probe_ctx = spdk_nvme_probe_async(&trid_pcie, NULL,
hotplug_probe_cb,
attach_cb, remove_cb);
if (!g_hotplug_probe_ctx) {
return -1;
}
}
done = spdk_nvme_probe_poll_async(g_hotplug_probe_ctx);
if (done != -EAGAIN) {
g_hotplug_probe_ctx = NULL;
return 1;
}
return -1;
@ -1553,6 +1571,7 @@ bdev_nvme_library_fini(void)
struct nvme_probe_skip_entry *entry, *entry_tmp;
spdk_poller_unregister(&g_hotplug_poller);
free(g_hotplug_probe_ctx);
TAILQ_FOREACH_SAFE(entry, &g_skipped_nvme_ctrlrs, tailq, entry_tmp) {
TAILQ_REMOVE(&g_skipped_nvme_ctrlrs, entry, tailq);