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bdev/nvme: update NS bdevs after NS attribute notice event

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Change-Id: I7c42696c09a3a4d35e0339ecfdf68c256c935a76
Signed-off-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-on: https://review.gerrithub.io/415117
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Seth Howell <seth.howell5141@gmail.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
This commit is contained in:
Changpeng Liu 2018-06-20 21:10:30 -04:00 committed by Daniel Verkamp
parent ddb3583b44
commit 4c4e2b4d80
1 changed files with 51 additions and 0 deletions
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51
lib/bdev/nvme/bdev_nvme.c
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@ -856,6 +856,55 @@ timeout_cb(void *cb_arg, struct spdk_nvme_ctrlr *ctrlr,
}
}
static void
nvme_ctrlr_deactivate_bdev(struct nvme_bdev *bdev)
{
spdk_bdev_unregister(&bdev->disk, NULL, NULL);
bdev->active = false;
}
static void
nvme_ctrlr_update_ns_bdevs(struct nvme_ctrlr *nvme_ctrlr)
{
struct spdk_nvme_ctrlr *ctrlr = nvme_ctrlr->ctrlr;
uint32_t i;
struct nvme_bdev *bdev;
for (i = 0; i < nvme_ctrlr->num_ns; i++) {
uint32_t nsid = i + 1;
bdev = &nvme_ctrlr->bdevs[i];
if (!bdev->active && spdk_nvme_ctrlr_is_active_ns(ctrlr, nsid)) {
SPDK_NOTICELOG("NSID %u to be added\n", nsid);
nvme_ctrlr_create_bdev(nvme_ctrlr, nsid);
}
if (bdev->active && !spdk_nvme_ctrlr_is_active_ns(ctrlr, nsid)) {
SPDK_NOTICELOG("NSID %u Bdev %s is removed\n", nsid, bdev->disk.name);
nvme_ctrlr_deactivate_bdev(bdev);
}
}
}
static void
aer_cb(void *arg, const struct spdk_nvme_cpl *cpl)
{
struct nvme_ctrlr *nvme_ctrlr = arg;
union spdk_nvme_async_event_completion event;
if (spdk_nvme_cpl_is_error(cpl)) {
SPDK_WARNLOG("AER request execute failed");
return;
}
event.raw = cpl->cdw0;
if ((event.bits.async_event_type == SPDK_NVME_ASYNC_EVENT_TYPE_NOTICE) &&
(event.bits.async_event_info == SPDK_NVME_ASYNC_EVENT_NS_ATTR_CHANGED)) {
nvme_ctrlr_update_ns_bdevs(nvme_ctrlr);
}
}
static int
create_ctrlr(struct spdk_nvme_ctrlr *ctrlr,
const char *name,
@ -901,6 +950,8 @@ create_ctrlr(struct spdk_nvme_ctrlr *ctrlr,
timeout_cb, NULL);
}
spdk_nvme_ctrlr_register_aer_callback(ctrlr, aer_cb, nvme_ctrlr);
return 0;
}