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nvme: update the NS identify data according to AER

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Number of Namespaces of controller identify structure
defines the maximum number of namespaces supported by
this controller, for physical NVMe controllers, the NN
is a fixed number, while here, we set the same rule for
NVMeoF controllers.

After NVMe driver got namespace notice event, it should
update the namespace identify data structure for NS
attach/detach commands.

Change-Id: Id72a2600a2ce9492fa2d6e09924667acbb77ae43
Signed-off-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-on: https://review.gerrithub.io/412883
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
This commit is contained in:
Changpeng Liu 2018-04-18 21:52:55 -04:00 committed by Jim Harris
parent 89236d8fc8
commit be1c82b7a8
2 changed files with 53 additions and 20 deletions
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50
lib/nvme/nvme_ctrlr.c
View File

@ -1065,9 +1065,38 @@ nvme_ctrlr_destruct_namespaces(struct spdk_nvme_ctrlr *ctrlr)
}
static int
nvme_ctrlr_construct_namespaces(struct spdk_nvme_ctrlr *ctrlr)
nvme_ctrlr_update_namespaces(struct spdk_nvme_ctrlr *ctrlr)
{
uint32_t i, nn = ctrlr->cdata.nn;
struct spdk_nvme_ns_data *nsdata;
if (nvme_ctrlr_identify_active_ns(ctrlr)) {
return -1;
}
for (i = 0; i < nn; i++) {
struct spdk_nvme_ns *ns = &ctrlr->ns[i];
uint32_t nsid = i + 1;
nsdata = &ctrlr->nsdata[nsid - 1];
if ((nsdata->ncap == 0) && spdk_nvme_ctrlr_is_active_ns(ctrlr, nsid)) {
if (nvme_ns_construct(ns, nsid, ctrlr) != 0) {
continue;
}
}
if (nsdata->ncap && !spdk_nvme_ctrlr_is_active_ns(ctrlr, nsid)) {
nvme_ns_destruct(ns);
}
}
return 0;
}
static int
nvme_ctrlr_construct_namespaces(struct spdk_nvme_ctrlr *ctrlr)
{
uint32_t nn = ctrlr->cdata.nn;
uint64_t phys_addr = 0;
/* ctrlr->num_ns may be 0 (startup) or a different number of namespaces (reset),
@ -1096,19 +1125,9 @@ nvme_ctrlr_construct_namespaces(struct spdk_nvme_ctrlr *ctrlr)
ctrlr->num_ns = nn;
}
if (nvme_ctrlr_identify_active_ns(ctrlr)) {
if (nvme_ctrlr_update_namespaces(ctrlr)) {
goto fail;
}
for (i = 0; i < nn; i++) {
struct spdk_nvme_ns *ns = &ctrlr->ns[i];
uint32_t nsid = i + 1;
if (nvme_ns_construct(ns, nsid, ctrlr) != 0) {
goto fail;
}
}
return 0;
fail:
@ -1122,6 +1141,7 @@ nvme_ctrlr_async_event_cb(void *arg, const struct spdk_nvme_cpl *cpl)
struct nvme_async_event_request *aer = arg;
struct spdk_nvme_ctrlr *ctrlr = aer->ctrlr;
struct spdk_nvme_ctrlr_process *active_proc;
union spdk_nvme_async_event_completion event;
if (cpl->status.sc == SPDK_NVME_SC_ABORTED_SQ_DELETION) {
/*
@ -1133,6 +1153,12 @@ nvme_ctrlr_async_event_cb(void *arg, const struct spdk_nvme_cpl *cpl)
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_namespaces(ctrlr);
}
active_proc = spdk_nvme_ctrlr_get_current_process(ctrlr);
if (active_proc && active_proc->aer_cb_fn) {
active_proc->aer_cb_fn(active_proc->aer_cb_arg, cpl);

23
lib/nvme/nvme_ns.c
View File

@ -58,14 +58,7 @@ int nvme_ns_identify_update(struct spdk_nvme_ns *ns)
&ns->ctrlr->ctrlr_lock)) {
/* This can occur if the namespace is not active. Simply zero the
* namespace data and continue. */
memset(nsdata, 0, sizeof(*nsdata));
ns->sector_size = 0;
ns->extended_lba_size = 0;
ns->md_size = 0;
ns->pi_type = 0;
ns->sectors_per_max_io = 0;
ns->sectors_per_stripe = 0;
ns->flags = 0;
nvme_ns_destruct(ns);
return 0;
}
@ -300,5 +293,19 @@ int nvme_ns_construct(struct spdk_nvme_ns *ns, uint32_t id,
void nvme_ns_destruct(struct spdk_nvme_ns *ns)
{
struct spdk_nvme_ns_data *nsdata;
if (!ns->id) {
return;
}
nsdata = _nvme_ns_get_data(ns);
memset(nsdata, 0, sizeof(*nsdata));
ns->sector_size = 0;
ns->extended_lba_size = 0;
ns->md_size = 0;
ns->pi_type = 0;
ns->sectors_per_max_io = 0;
ns->sectors_per_stripe = 0;
ns->flags = 0;
}