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nvme: make nvme_ctrlr_set_doorbell_buffer_config() can be executed asynchronously

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Change-Id: Ib8a500d7d1160f6fa66add4a6bebce7703cd605a
Signed-off-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-on: https://review.gerrithub.io/424915
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Chandler-Test-Pool: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
This commit is contained in:
Changpeng Liu 2018-09-07 01:09:46 -04:00 committed by Jim Harris
parent 956bb46cb4
commit 5a02886075
2 changed files with 33 additions and 12 deletions
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40
lib/nvme/nvme_ctrlr.c
View File

@ -634,6 +634,8 @@ nvme_ctrlr_state_string(enum nvme_ctrlr_state state)
return "set supported features";
case NVME_CTRLR_STATE_SET_DB_BUF_CFG:
return "set doorbell buffer config";
case NVME_CTRLR_STATE_WAIT_FOR_DB_BUF_CFG:
return "wait for doorbell buffer config";
case NVME_CTRLR_STATE_SET_KEEP_ALIVE_TIMEOUT:
return "set keep alive timeout";
case NVME_CTRLR_STATE_WAIT_FOR_KEEP_ALIVE_TIMEOUT:
@ -681,18 +683,33 @@ nvme_ctrlr_free_doorbell_buffer(struct spdk_nvme_ctrlr *ctrlr)
}
}
static void
nvme_ctrlr_set_doorbell_buffer_config_done(void *arg, const struct spdk_nvme_cpl *cpl)
{
struct spdk_nvme_ctrlr *ctrlr = (struct spdk_nvme_ctrlr *)arg;
if (spdk_nvme_cpl_is_error(cpl)) {
SPDK_WARNLOG("Doorbell buffer config failed\n");
} else {
SPDK_INFOLOG(SPDK_LOG_NVME, "NVMe controller: %s doorbell buffer config enabled\n",
ctrlr->trid.traddr);
}
nvme_ctrlr_set_state(ctrlr, NVME_CTRLR_STATE_SET_KEEP_ALIVE_TIMEOUT, NVME_TIMEOUT_INFINITE);
}
static int
nvme_ctrlr_set_doorbell_buffer_config(struct spdk_nvme_ctrlr *ctrlr)
{
int rc = 0;
struct nvme_completion_poll_status status;
uint64_t prp1, prp2;
if (!ctrlr->cdata.oacs.doorbell_buffer_config) {
nvme_ctrlr_set_state(ctrlr, NVME_CTRLR_STATE_SET_KEEP_ALIVE_TIMEOUT, NVME_TIMEOUT_INFINITE);
return 0;
}
if (ctrlr->trid.trtype != SPDK_NVME_TRANSPORT_PCIE) {
nvme_ctrlr_set_state(ctrlr, NVME_CTRLR_STATE_SET_KEEP_ALIVE_TIMEOUT, NVME_TIMEOUT_INFINITE);
return 0;
}
@ -700,7 +717,8 @@ nvme_ctrlr_set_doorbell_buffer_config(struct spdk_nvme_ctrlr *ctrlr)
ctrlr->shadow_doorbell = spdk_dma_zmalloc(ctrlr->page_size, ctrlr->page_size,
&prp1);
if (ctrlr->shadow_doorbell == NULL) {
return -ENOMEM;
rc = -ENOMEM;
goto error;
}
ctrlr->eventidx = spdk_dma_zmalloc(ctrlr->page_size, ctrlr->page_size, &prp2);
@ -709,23 +727,18 @@ nvme_ctrlr_set_doorbell_buffer_config(struct spdk_nvme_ctrlr *ctrlr)
goto error;
}
nvme_ctrlr_set_state(ctrlr, NVME_CTRLR_STATE_WAIT_FOR_DB_BUF_CFG, NVME_TIMEOUT_INFINITE);
rc = nvme_ctrlr_cmd_doorbell_buffer_config(ctrlr, prp1, prp2,
nvme_completion_poll_cb, &status);
nvme_ctrlr_set_doorbell_buffer_config_done, ctrlr);
if (rc != 0) {
goto error;
}
if (spdk_nvme_wait_for_completion(ctrlr->adminq, &status)) {
SPDK_WARNLOG("Doorbell buffer config failed\n");
goto error;
}
SPDK_INFOLOG(SPDK_LOG_NVME, "NVMe controller: %s doorbell buffer config enabled\n",
ctrlr->trid.traddr);
return 0;
error:
nvme_ctrlr_set_state(ctrlr, NVME_CTRLR_STATE_ERROR, NVME_TIMEOUT_INFINITE);
nvme_ctrlr_free_doorbell_buffer(ctrlr);
return rc;
}
@ -1792,7 +1805,10 @@ nvme_ctrlr_process_init(struct spdk_nvme_ctrlr *ctrlr)
case NVME_CTRLR_STATE_SET_DB_BUF_CFG:
rc = nvme_ctrlr_set_doorbell_buffer_config(ctrlr);
nvme_ctrlr_set_state(ctrlr, NVME_CTRLR_STATE_SET_KEEP_ALIVE_TIMEOUT, NVME_TIMEOUT_INFINITE);
break;
case NVME_CTRLR_STATE_WAIT_FOR_DB_BUF_CFG:
spdk_nvme_qpair_process_completions(ctrlr->adminq, 0);
break;
case NVME_CTRLR_STATE_SET_KEEP_ALIVE_TIMEOUT:

5
lib/nvme/nvme_internal.h
View File

@ -457,6 +457,11 @@ enum nvme_ctrlr_state {
*/
NVME_CTRLR_STATE_SET_DB_BUF_CFG,
/**
* Waiting for Doorbell Buffer Config to be completed.
*/
NVME_CTRLR_STATE_WAIT_FOR_DB_BUF_CFG,
/**
* Set Keep Alive Timeout of the controller.
*/