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nvmf: consolidate CC reset and shutdown

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nvmf_ctrlr_cc_shn_done() and nvmf_ctrlr_cc_reset_done() are
almost same, so consolidate them together by adding a flag.

Change-Id: Ib7714d31a40f9d8d344ec2630c083c5d76dac8a1
Signed-off-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/9907
Community-CI: Broadcom CI <spdk-ci.pdl@broadcom.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
This commit is contained in:
Changpeng Liu 2021-10-19 17:53:40 +08:00 committed by Keith Lucas
parent 20627a1a36
commit 0119293b74
2 changed files with 24 additions and 30 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

46
lib/nvmf/ctrlr.c
View File

@ -931,7 +931,7 @@ nvmf_ctrlr_association_remove(void *ctx)
}
static void
nvmf_ctrlr_cc_shn_done(struct spdk_io_channel_iter *i, int status)
nvmf_ctrlr_cc_reset_shn_done(struct spdk_io_channel_iter *i, int status)
{
struct spdk_nvmf_ctrlr *ctrlr = spdk_io_channel_iter_get_ctx(i);
@ -940,34 +940,14 @@ nvmf_ctrlr_cc_shn_done(struct spdk_io_channel_iter *i, int status)
assert(false);
}
if (ctrlr->disconnect_is_shn) {
ctrlr->vcprop.csts.bits.shst = SPDK_NVME_SHST_COMPLETE;
/* After CC.EN transitions to 0 (due to shutdown or reset), the association
* between the host and controller shall be preserved for at least 2 minutes */
if (ctrlr->association_timer) {
SPDK_DEBUGLOG(nvmf, "Association timer already set\n");
nvmf_ctrlr_stop_association_timer(ctrlr);
}
if (ctrlr->association_timeout) {
ctrlr->association_timer = SPDK_POLLER_REGISTER(nvmf_ctrlr_association_remove, ctrlr,
ctrlr->association_timeout * 1000);
}
ctrlr->disconnect_in_progress = false;
}
static void
nvmf_ctrlr_cc_reset_done(struct spdk_io_channel_iter *i, int status)
{
struct spdk_nvmf_ctrlr *ctrlr = spdk_io_channel_iter_get_ctx(i);
if (status < 0) {
SPDK_ERRLOG("Fail to disconnect io ctrlr qpairs\n");
assert(false);
}
ctrlr->disconnect_is_shn = false;
} else {
/* Only a subset of the registers are cleared out on a reset */
ctrlr->vcprop.cc.raw = 0;
ctrlr->vcprop.csts.raw = 0;
}
/* After CC.EN transitions to 0 (due to shutdown or reset), the association
* between the host and controller shall be preserved for at least 2 minutes */
@ -1031,12 +1011,18 @@ nvmf_prop_set_cc(struct spdk_nvmf_ctrlr *ctrlr, uint32_t value)
ctrlr->vcprop.csts.bits.rdy = 1;
} else {
SPDK_DEBUGLOG(nvmf, "Property Set CC Disable!\n");
if (ctrlr->disconnect_in_progress) {
SPDK_DEBUGLOG(nvmf, "Disconnect in progress\n");
return true;
}
ctrlr->vcprop.cc.bits.en = 0;
ctrlr->disconnect_in_progress = true;
ctrlr->disconnect_is_shn = false;
spdk_for_each_channel(ctrlr->subsys->tgt,
nvmf_ctrlr_disconnect_io_qpairs_on_pg,
ctrlr,
nvmf_ctrlr_cc_reset_done);
nvmf_ctrlr_cc_reset_shn_done);
}
diff.bits.en = 0;
}
@ -1046,12 +1032,18 @@ nvmf_prop_set_cc(struct spdk_nvmf_ctrlr *ctrlr, uint32_t value)
cc.bits.shn == SPDK_NVME_SHN_ABRUPT) {
SPDK_DEBUGLOG(nvmf, "Property Set CC Shutdown %u%ub!\n",
cc.bits.shn >> 1, cc.bits.shn & 1);
if (ctrlr->disconnect_in_progress) {
SPDK_DEBUGLOG(nvmf, "Disconnect in progress\n");
return true;
}
ctrlr->vcprop.cc.bits.shn = cc.bits.shn;
ctrlr->disconnect_in_progress = true;
ctrlr->disconnect_is_shn = true;
spdk_for_each_channel(ctrlr->subsys->tgt,
nvmf_ctrlr_disconnect_io_qpairs_on_pg,
ctrlr,
nvmf_ctrlr_cc_shn_done);
nvmf_ctrlr_cc_reset_shn_done);
/* From the time a shutdown is initiated the controller shall disable
* Keep Alive timer */

2
lib/nvmf/nvmf_internal.h
View File

@ -269,6 +269,8 @@ struct spdk_nvmf_ctrlr {
bool dif_insert_or_strip;
bool in_destruct;
bool disconnect_in_progress;
/* valid only when disconnect_in_progress is true */
bool disconnect_is_shn;
bool acre_enabled;
TAILQ_ENTRY(spdk_nvmf_ctrlr) link;