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bdev/nvme: Remove ctx parameter from _bdev_nvme_reset()

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Separate bdev_nvme_reset() and _bdev_nvme_reset() by making
bdev_nvme_reset() call _bdev_nvme_reset_start(), and then
remove the ctx parameter from _bdev_nvme_reset().

This clarifies the next patch and reduces the size of the next patch.

Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Change-Id: I76b0f2f5b83445845a313203e594dca0be150bc3
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/6949
Community-CI: Broadcom CI
Community-CI: Mellanox Build Bot
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Aleksey Marchuk <alexeymar@mellanox.com>
This commit is contained in:
Shuhei Matsumoto 2021-03-19 06:51:01 +09:00 committed by Tomasz Zawadzki
parent f84b70f6b1
commit 26c5cc5259
2 changed files with 20 additions and 14 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

24
module/bdev/nvme/bdev_nvme.c
View File

@ -531,7 +531,7 @@ _bdev_nvme_reset_start(struct nvme_bdev_ctrlr *nvme_bdev_ctrlr)
}
static int
_bdev_nvme_reset(struct nvme_bdev_ctrlr *nvme_bdev_ctrlr, void *ctx)
_bdev_nvme_reset(struct nvme_bdev_ctrlr *nvme_bdev_ctrlr)
{
int rc;
@ -540,7 +540,7 @@ _bdev_nvme_reset(struct nvme_bdev_ctrlr *nvme_bdev_ctrlr, void *ctx)
/* First, delete all NVMe I/O queue pairs. */
spdk_for_each_channel(nvme_bdev_ctrlr,
_bdev_nvme_reset_destroy_qpair,
ctx,
NULL,
_bdev_nvme_reset_ctrlr);
}
@ -553,11 +553,16 @@ bdev_nvme_reset(struct nvme_io_channel *nvme_ch, struct nvme_bdev_io *bio)
struct spdk_bdev_io *bdev_io = spdk_bdev_io_from_ctx(bio);
int rc;
rc = _bdev_nvme_reset(nvme_ch->ctrlr, bio);
if (rc == -EBUSY) {
rc = _bdev_nvme_reset_start(nvme_ch->ctrlr);
if (rc == 0) {
/* First, delete all NVMe I/O queue pairs. */
spdk_for_each_channel(nvme_ch->ctrlr,
_bdev_nvme_reset_destroy_qpair,
bio,
_bdev_nvme_reset_ctrlr);
} else if (rc == -EBUSY) {
/* Don't bother resetting if the controller is in the process of being destructed. */
spdk_bdev_io_complete(bdev_io, SPDK_BDEV_IO_STATUS_FAILED);
return 0;
} else if (rc == -EAGAIN) {
/*
* Reset call is queued only if it is from the app framework. This is on purpose so that
@ -565,10 +570,11 @@ bdev_nvme_reset(struct nvme_io_channel *nvme_ch, struct nvme_bdev_io *bio)
* upper level. If they are in the middle of a reset, we won't try to schedule another one.
*/
TAILQ_INSERT_TAIL(&nvme_ch->pending_resets, bdev_io, module_link);
return 0;
} else {
return rc;
}
return 0;
}
static int
@ -1316,7 +1322,7 @@ nvme_abort_cpl(void *ctx, const struct spdk_nvme_cpl *cpl)
if (spdk_nvme_cpl_is_error(cpl)) {
SPDK_WARNLOG("Abort failed. Resetting controller.\n");
_bdev_nvme_reset(nvme_bdev_ctrlr, NULL);
_bdev_nvme_reset(nvme_bdev_ctrlr);
}
}
@ -1341,7 +1347,7 @@ timeout_cb(void *cb_arg, struct spdk_nvme_ctrlr *ctrlr,
csts = spdk_nvme_ctrlr_get_regs_csts(ctrlr);
if (csts.bits.cfs) {
SPDK_ERRLOG("Controller Fatal Status, reset required\n");
_bdev_nvme_reset(nvme_bdev_ctrlr, NULL);
_bdev_nvme_reset(nvme_bdev_ctrlr);
return;
}
}
@ -1360,7 +1366,7 @@ timeout_cb(void *cb_arg, struct spdk_nvme_ctrlr *ctrlr,
/* FALLTHROUGH */
case SPDK_BDEV_NVME_TIMEOUT_ACTION_RESET:
_bdev_nvme_reset(nvme_bdev_ctrlr, NULL);
_bdev_nvme_reset(nvme_bdev_ctrlr);
break;
case SPDK_BDEV_NVME_TIMEOUT_ACTION_NONE:
SPDK_DEBUGLOG(bdev_nvme, "No action for nvme controller timeout.\n");

10
test/unit/lib/bdev/nvme/bdev_nvme.c/bdev_nvme_ut.c
View File

@ -944,14 +944,14 @@ test_reset_ctrlr(void)
/* Case 1: ctrlr is already being destructed. */
nvme_bdev_ctrlr->destruct = true;
rc = _bdev_nvme_reset(nvme_bdev_ctrlr, NULL);
rc = _bdev_nvme_reset(nvme_bdev_ctrlr);
CU_ASSERT(rc == -EBUSY);
/* Case 2: reset is in progress. */
nvme_bdev_ctrlr->destruct = false;
nvme_bdev_ctrlr->resetting = true;
rc = _bdev_nvme_reset(nvme_bdev_ctrlr, NULL);
rc = _bdev_nvme_reset(nvme_bdev_ctrlr);
CU_ASSERT(rc == -EAGAIN);
/* Case 3: reset completes successfully. */
@ -959,7 +959,7 @@ test_reset_ctrlr(void)
curr_trid->is_failed = true;
ctrlr.is_failed = true;
rc = _bdev_nvme_reset(nvme_bdev_ctrlr, NULL);
rc = _bdev_nvme_reset(nvme_bdev_ctrlr);
CU_ASSERT(rc == 0);
CU_ASSERT(nvme_bdev_ctrlr->resetting == true);
CU_ASSERT(nvme_ch1->qpair != NULL);
@ -1036,7 +1036,7 @@ test_race_between_reset_and_destruct_ctrlr(void)
/* Reset starts from thread 1. */
set_thread(1);
rc = _bdev_nvme_reset(nvme_bdev_ctrlr, NULL);
rc = _bdev_nvme_reset(nvme_bdev_ctrlr);
CU_ASSERT(rc == 0);
CU_ASSERT(nvme_bdev_ctrlr->resetting == true);
@ -1057,7 +1057,7 @@ test_race_between_reset_and_destruct_ctrlr(void)
CU_ASSERT(nvme_bdev_ctrlr->resetting == false);
/* New reset request is rejected. */
rc = _bdev_nvme_reset(nvme_bdev_ctrlr, NULL);
rc = _bdev_nvme_reset(nvme_bdev_ctrlr);
CU_ASSERT(rc == -EBUSY);
/* Additional polling called spdk_io_device_unregister() to ctrlr,