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nvme: rename nvme_qpair to spdk_nvme_qpair

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Prepare for qpair to be exposed as part of the public API.

Change-Id: Ia63e863e95554adceeade20c829f12fe346375d5
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
This commit is contained in:
Daniel Verkamp 2016-02-29 10:11:35 -07:00
parent 03a0af30c8
commit 6eb18e2f3d
6 changed files with 72 additions and 72 deletions
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8
lib/nvme/nvme_ctrlr.c
View File

@ -179,7 +179,7 @@ nvme_ctrlr_construct_admin_qpair(struct spdk_nvme_ctrlr *ctrlr)
static int
nvme_ctrlr_construct_io_qpairs(struct spdk_nvme_ctrlr *ctrlr)
{
struct nvme_qpair *qpair;
struct spdk_nvme_qpair *qpair;
union spdk_nvme_cap_lo_register cap_lo;
uint32_t i, num_entries, num_trackers;
int rc;
@ -211,7 +211,7 @@ nvme_ctrlr_construct_io_qpairs(struct spdk_nvme_ctrlr *ctrlr)
ctrlr->max_xfer_size = NVME_MAX_XFER_SIZE;
ctrlr->ioq = calloc(ctrlr->num_io_queues, sizeof(struct nvme_qpair));
ctrlr->ioq = calloc(ctrlr->num_io_queues, sizeof(struct spdk_nvme_qpair));
if (ctrlr->ioq == NULL)
return -1;
@ -491,7 +491,7 @@ static int
nvme_ctrlr_create_qpairs(struct spdk_nvme_ctrlr *ctrlr)
{
struct nvme_completion_poll_status status;
struct nvme_qpair *qpair;
struct spdk_nvme_qpair *qpair;
uint32_t i;
if (nvme_ctrlr_construct_io_qpairs(ctrlr)) {
@ -924,7 +924,7 @@ void
nvme_ctrlr_submit_io_request(struct spdk_nvme_ctrlr *ctrlr,
struct nvme_request *req)
{
struct nvme_qpair *qpair;
struct spdk_nvme_qpair *qpair;
nvme_assert(nvme_thread_ioq_index >= 0, ("no ioq_index assigned for thread\n"));
qpair = &ctrlr->ioq[nvme_thread_ioq_index];

4
lib/nvme/nvme_ctrlr_cmd.c
View File

@ -123,7 +123,7 @@ nvme_ctrlr_cmd_identify_namespace(struct spdk_nvme_ctrlr *ctrlr, uint16_t nsid,
void
nvme_ctrlr_cmd_create_io_cq(struct spdk_nvme_ctrlr *ctrlr,
struct nvme_qpair *io_que, spdk_nvme_cmd_cb cb_fn,
struct spdk_nvme_qpair *io_que, spdk_nvme_cmd_cb cb_fn,
void *cb_arg)
{
struct nvme_request *req;
@ -151,7 +151,7 @@ nvme_ctrlr_cmd_create_io_cq(struct spdk_nvme_ctrlr *ctrlr,
void
nvme_ctrlr_cmd_create_io_sq(struct spdk_nvme_ctrlr *ctrlr,
struct nvme_qpair *io_que, spdk_nvme_cmd_cb cb_fn, void *cb_arg)
struct spdk_nvme_qpair *io_que, spdk_nvme_cmd_cb cb_fn, void *cb_arg)
{
struct nvme_request *req;
struct spdk_nvme_cmd *cmd;

26
lib/nvme/nvme_internal.h
View File

@ -237,7 +237,7 @@ struct nvme_tracker {
uint64_t prp[NVME_MAX_PRP_LIST_ENTRIES];
};
struct nvme_qpair {
struct spdk_nvme_qpair {
volatile uint32_t *sq_tdbl;
volatile uint32_t *cq_hdbl;
@ -329,7 +329,7 @@ struct spdk_nvme_ctrlr {
volatile struct spdk_nvme_registers *regs;
/** I/O queue pairs */
struct nvme_qpair *ioq;
struct spdk_nvme_qpair *ioq;
/** Array of namespaces indexed by nsid - 1 */
struct spdk_nvme_ns *ns;
@ -376,7 +376,7 @@ struct spdk_nvme_ctrlr {
nvme_mutex_t ctrlr_lock;
struct nvme_qpair adminq;
struct spdk_nvme_qpair adminq;
/**
* Identify Controller data.
@ -450,10 +450,10 @@ void nvme_ctrlr_cmd_identify_namespace(struct spdk_nvme_ctrlr *ctrlr,
uint16_t nsid, void *payload,
spdk_nvme_cmd_cb cb_fn, void *cb_arg);
void nvme_ctrlr_cmd_create_io_cq(struct spdk_nvme_ctrlr *ctrlr,
struct nvme_qpair *io_que,
struct spdk_nvme_qpair *io_que,
spdk_nvme_cmd_cb cb_fn, void *cb_arg);
void nvme_ctrlr_cmd_create_io_sq(struct spdk_nvme_ctrlr *ctrlr,
struct nvme_qpair *io_que,
struct spdk_nvme_qpair *io_que,
spdk_nvme_cmd_cb cb_fn, void *cb_arg);
void nvme_ctrlr_cmd_set_num_queues(struct spdk_nvme_ctrlr *ctrlr,
uint32_t num_queues, spdk_nvme_cmd_cb cb_fn,
@ -478,18 +478,18 @@ void nvme_ctrlr_submit_io_request(struct spdk_nvme_ctrlr *ctrlr,
void nvme_ctrlr_post_failed_request(struct spdk_nvme_ctrlr *ctrlr,
struct nvme_request *req);
int nvme_qpair_construct(struct nvme_qpair *qpair, uint16_t id,
int nvme_qpair_construct(struct spdk_nvme_qpair *qpair, uint16_t id,
uint16_t num_entries,
uint16_t num_trackers,
struct spdk_nvme_ctrlr *ctrlr);
void nvme_qpair_destroy(struct nvme_qpair *qpair);
void nvme_qpair_enable(struct nvme_qpair *qpair);
void nvme_qpair_disable(struct nvme_qpair *qpair);
int32_t nvme_qpair_process_completions(struct nvme_qpair *qpair, uint32_t max_completions);
void nvme_qpair_submit_request(struct nvme_qpair *qpair,
void nvme_qpair_destroy(struct spdk_nvme_qpair *qpair);
void nvme_qpair_enable(struct spdk_nvme_qpair *qpair);
void nvme_qpair_disable(struct spdk_nvme_qpair *qpair);
int32_t nvme_qpair_process_completions(struct spdk_nvme_qpair *qpair, uint32_t max_completions);
void nvme_qpair_submit_request(struct spdk_nvme_qpair *qpair,
struct nvme_request *req);
void nvme_qpair_reset(struct nvme_qpair *qpair);
void nvme_qpair_fail(struct nvme_qpair *qpair);
void nvme_qpair_reset(struct spdk_nvme_qpair *qpair);
void nvme_qpair_fail(struct spdk_nvme_qpair *qpair);
int nvme_ns_construct(struct spdk_nvme_ns *ns, uint16_t id,
struct spdk_nvme_ctrlr *ctrlr);

58
lib/nvme/nvme_qpair.c
View File

@ -38,12 +38,12 @@
*
*/
static inline bool nvme_qpair_is_admin_queue(struct nvme_qpair *qpair)
static inline bool nvme_qpair_is_admin_queue(struct spdk_nvme_qpair *qpair)
{
return qpair->id == 0;
}
static inline bool nvme_qpair_is_io_queue(struct nvme_qpair *qpair)
static inline bool nvme_qpair_is_io_queue(struct spdk_nvme_qpair *qpair)
{
return qpair->id != 0;
}
@ -106,7 +106,7 @@ nvme_get_string(const struct nvme_string *strings, uint16_t value)
}
static void
nvme_admin_qpair_print_command(struct nvme_qpair *qpair,
nvme_admin_qpair_print_command(struct spdk_nvme_qpair *qpair,
struct spdk_nvme_cmd *cmd)
{
@ -117,7 +117,7 @@ nvme_admin_qpair_print_command(struct nvme_qpair *qpair,
}
static void
nvme_io_qpair_print_command(struct nvme_qpair *qpair,
nvme_io_qpair_print_command(struct spdk_nvme_qpair *qpair,
struct spdk_nvme_cmd *cmd)
{
@ -148,7 +148,7 @@ nvme_io_qpair_print_command(struct nvme_qpair *qpair,
}
static void
nvme_qpair_print_command(struct nvme_qpair *qpair, struct spdk_nvme_cmd *cmd)
nvme_qpair_print_command(struct spdk_nvme_qpair *qpair, struct spdk_nvme_cmd *cmd)
{
nvme_assert(qpair != NULL, ("qpair can not be NULL"));
nvme_assert(cmd != NULL, ("cmd can not be NULL"));
@ -234,7 +234,7 @@ get_status_string(uint16_t sct, uint16_t sc)
}
static void
nvme_qpair_print_completion(struct nvme_qpair *qpair,
nvme_qpair_print_completion(struct spdk_nvme_qpair *qpair,
struct spdk_nvme_cpl *cpl)
{
nvme_printf(qpair->ctrlr, "%s (%02x/%02x) sqid:%d cid:%d cdw0:%x sqhd:%04x p:%x m:%x dnr:%x\n",
@ -294,7 +294,7 @@ nvme_qpair_construct_tracker(struct nvme_tracker *tr, uint16_t cid, uint64_t phy
}
static void
nvme_qpair_submit_tracker(struct nvme_qpair *qpair, struct nvme_tracker *tr)
nvme_qpair_submit_tracker(struct spdk_nvme_qpair *qpair, struct nvme_tracker *tr)
{
struct nvme_request *req;
@ -313,7 +313,7 @@ nvme_qpair_submit_tracker(struct nvme_qpair *qpair, struct nvme_tracker *tr)
}
static void
nvme_qpair_complete_tracker(struct nvme_qpair *qpair, struct nvme_tracker *tr,
nvme_qpair_complete_tracker(struct spdk_nvme_qpair *qpair, struct nvme_tracker *tr,
struct spdk_nvme_cpl *cpl, bool print_on_error)
{
struct nvme_request *req;
@ -365,7 +365,7 @@ nvme_qpair_complete_tracker(struct nvme_qpair *qpair, struct nvme_tracker *tr,
}
static void
nvme_qpair_manual_complete_tracker(struct nvme_qpair *qpair,
nvme_qpair_manual_complete_tracker(struct spdk_nvme_qpair *qpair,
struct nvme_tracker *tr, uint32_t sct, uint32_t sc, uint32_t dnr,
bool print_on_error)
{
@ -381,7 +381,7 @@ nvme_qpair_manual_complete_tracker(struct nvme_qpair *qpair,
}
static void
nvme_qpair_manual_complete_request(struct nvme_qpair *qpair,
nvme_qpair_manual_complete_request(struct spdk_nvme_qpair *qpair,
struct nvme_request *req, uint32_t sct, uint32_t sc,
bool print_on_error)
{
@ -408,7 +408,7 @@ nvme_qpair_manual_complete_request(struct nvme_qpair *qpair,
}
static inline bool
nvme_qpair_check_enabled(struct nvme_qpair *qpair)
nvme_qpair_check_enabled(struct spdk_nvme_qpair *qpair)
{
if (!qpair->is_enabled &&
!qpair->ctrlr->is_resetting) {
@ -462,7 +462,7 @@ nvme_qpair_check_enabled(struct nvme_qpair *qpair)
* \sa nvme_cb_fn_t
*/
int32_t
nvme_qpair_process_completions(struct nvme_qpair *qpair, uint32_t max_completions)
nvme_qpair_process_completions(struct spdk_nvme_qpair *qpair, uint32_t max_completions)
{
struct nvme_tracker *tr;
struct spdk_nvme_cpl *cpl;
@ -522,7 +522,7 @@ nvme_qpair_process_completions(struct nvme_qpair *qpair, uint32_t max_completion
}
int
nvme_qpair_construct(struct nvme_qpair *qpair, uint16_t id,
nvme_qpair_construct(struct spdk_nvme_qpair *qpair, uint16_t id,
uint16_t num_entries, uint16_t num_trackers,
struct spdk_nvme_ctrlr *ctrlr)
{
@ -593,7 +593,7 @@ fail:
}
static void
nvme_admin_qpair_abort_aers(struct nvme_qpair *qpair)
nvme_admin_qpair_abort_aers(struct spdk_nvme_qpair *qpair)
{
struct nvme_tracker *tr;
@ -611,14 +611,14 @@ nvme_admin_qpair_abort_aers(struct nvme_qpair *qpair)
}
static void
_nvme_admin_qpair_destroy(struct nvme_qpair *qpair)
_nvme_admin_qpair_destroy(struct spdk_nvme_qpair *qpair)
{
nvme_admin_qpair_abort_aers(qpair);
}
void
nvme_qpair_destroy(struct nvme_qpair *qpair)
nvme_qpair_destroy(struct spdk_nvme_qpair *qpair)
{
struct nvme_tracker *tr;
@ -652,7 +652,7 @@ nvme_qpair_destroy(struct nvme_qpair *qpair)
*/
static void
_nvme_fail_request_bad_vtophys(struct nvme_qpair *qpair, struct nvme_tracker *tr)
_nvme_fail_request_bad_vtophys(struct spdk_nvme_qpair *qpair, struct nvme_tracker *tr)
{
/*
* Bad vtophys translation, so abort this request and return
@ -664,7 +664,7 @@ _nvme_fail_request_bad_vtophys(struct nvme_qpair *qpair, struct nvme_tracker *tr
}
static void
_nvme_fail_request_ctrlr_failed(struct nvme_qpair *qpair, struct nvme_request *req)
_nvme_fail_request_ctrlr_failed(struct spdk_nvme_qpair *qpair, struct nvme_request *req)
{
nvme_qpair_manual_complete_request(qpair, req, SPDK_NVME_SCT_GENERIC,
SPDK_NVME_SC_ABORTED_BY_REQUEST, true);
@ -674,7 +674,7 @@ _nvme_fail_request_ctrlr_failed(struct nvme_qpair *qpair, struct nvme_request *r
* Build PRP list describing physically contiguous payload buffer.
*/
static int
_nvme_qpair_build_contig_request(struct nvme_qpair *qpair, struct nvme_request *req,
_nvme_qpair_build_contig_request(struct spdk_nvme_qpair *qpair, struct nvme_request *req,
struct nvme_tracker *tr)
{
uint64_t phys_addr;
@ -718,7 +718,7 @@ _nvme_qpair_build_contig_request(struct nvme_qpair *qpair, struct nvme_request *
}
static int
_nvme_qpair_build_sgl_request(struct nvme_qpair *qpair, struct nvme_request *req,
_nvme_qpair_build_sgl_request(struct spdk_nvme_qpair *qpair, struct nvme_request *req,
struct nvme_tracker *tr)
{
int rc;
@ -804,7 +804,7 @@ _nvme_qpair_build_sgl_request(struct nvme_qpair *qpair, struct nvme_request *req
}
void
nvme_qpair_submit_request(struct nvme_qpair *qpair, struct nvme_request *req)
nvme_qpair_submit_request(struct spdk_nvme_qpair *qpair, struct nvme_request *req)
{
int rc;
struct nvme_tracker *tr;
@ -873,7 +873,7 @@ nvme_qpair_submit_request(struct nvme_qpair *qpair, struct nvme_request *req)
}
void
nvme_qpair_reset(struct nvme_qpair *qpair)
nvme_qpair_reset(struct spdk_nvme_qpair *qpair)
{
qpair->sq_tail = qpair->cq_head = 0;
@ -893,7 +893,7 @@ nvme_qpair_reset(struct nvme_qpair *qpair)
}
static void
_nvme_admin_qpair_enable(struct nvme_qpair *qpair)
_nvme_admin_qpair_enable(struct spdk_nvme_qpair *qpair)
{
struct nvme_tracker *tr;
struct nvme_tracker *tr_temp;
@ -915,7 +915,7 @@ _nvme_admin_qpair_enable(struct nvme_qpair *qpair)
}
static void
_nvme_io_qpair_enable(struct nvme_qpair *qpair)
_nvme_io_qpair_enable(struct spdk_nvme_qpair *qpair)
{
STAILQ_HEAD(, nvme_request) temp;
struct nvme_tracker *tr;
@ -949,7 +949,7 @@ _nvme_io_qpair_enable(struct nvme_qpair *qpair)
}
void
nvme_qpair_enable(struct nvme_qpair *qpair)
nvme_qpair_enable(struct spdk_nvme_qpair *qpair)
{
if (nvme_qpair_is_io_queue(qpair)) {
_nvme_io_qpair_enable(qpair);
@ -959,20 +959,20 @@ nvme_qpair_enable(struct nvme_qpair *qpair)
}
static void
_nvme_admin_qpair_disable(struct nvme_qpair *qpair)
_nvme_admin_qpair_disable(struct spdk_nvme_qpair *qpair)
{
qpair->is_enabled = false;
nvme_admin_qpair_abort_aers(qpair);
}
static void
_nvme_io_qpair_disable(struct nvme_qpair *qpair)
_nvme_io_qpair_disable(struct spdk_nvme_qpair *qpair)
{
qpair->is_enabled = false;
}
void
nvme_qpair_disable(struct nvme_qpair *qpair)
nvme_qpair_disable(struct spdk_nvme_qpair *qpair)
{
if (nvme_qpair_is_io_queue(qpair)) {
_nvme_io_qpair_disable(qpair);
@ -982,7 +982,7 @@ nvme_qpair_disable(struct nvme_qpair *qpair)
}
void
nvme_qpair_fail(struct nvme_qpair *qpair)
nvme_qpair_fail(struct spdk_nvme_qpair *qpair)
{
struct nvme_tracker *tr;
struct nvme_request *req;

20
test/lib/nvme/unit/nvme_ctrlr_c/nvme_ctrlr_ut.c
View File

@ -75,7 +75,7 @@ spdk_pci_device_get_subdevice_id(struct spdk_pci_device *dev)
return g_pci_subdevice_id;
}
int nvme_qpair_construct(struct nvme_qpair *qpair, uint16_t id,
int nvme_qpair_construct(struct spdk_nvme_qpair *qpair, uint16_t id,
uint16_t num_entries, uint16_t num_trackers,
struct spdk_nvme_ctrlr *ctrlr)
{
@ -91,39 +91,39 @@ spdk_nvme_ctrlr_cmd_get_log_page(struct spdk_nvme_ctrlr *ctrlr, uint8_t log_page
}
void
nvme_qpair_fail(struct nvme_qpair *qpair)
nvme_qpair_fail(struct spdk_nvme_qpair *qpair)
{
}
void
nvme_qpair_submit_request(struct nvme_qpair *qpair, struct nvme_request *req)
nvme_qpair_submit_request(struct spdk_nvme_qpair *qpair, struct nvme_request *req)
{
CU_ASSERT(req->cmd.opc == SPDK_NVME_OPC_ASYNC_EVENT_REQUEST);
}
int32_t
nvme_qpair_process_completions(struct nvme_qpair *qpair, uint32_t max_completions)
nvme_qpair_process_completions(struct spdk_nvme_qpair *qpair, uint32_t max_completions)
{
return 0;
}
void
nvme_qpair_disable(struct nvme_qpair *qpair)
nvme_qpair_disable(struct spdk_nvme_qpair *qpair)
{
}
void
nvme_qpair_destroy(struct nvme_qpair *qpair)
nvme_qpair_destroy(struct spdk_nvme_qpair *qpair)
{
}
void
nvme_qpair_enable(struct nvme_qpair *qpair)
nvme_qpair_enable(struct spdk_nvme_qpair *qpair)
{
}
void
nvme_qpair_reset(struct nvme_qpair *qpair)
nvme_qpair_reset(struct spdk_nvme_qpair *qpair)
{
}
@ -153,14 +153,14 @@ nvme_ctrlr_cmd_set_num_queues(struct spdk_nvme_ctrlr *ctrlr,
void
nvme_ctrlr_cmd_create_io_cq(struct spdk_nvme_ctrlr *ctrlr,
struct nvme_qpair *io_que, spdk_nvme_cmd_cb cb_fn,
struct spdk_nvme_qpair *io_que, spdk_nvme_cmd_cb cb_fn,
void *cb_arg)
{
}
void
nvme_ctrlr_cmd_create_io_sq(struct spdk_nvme_ctrlr *ctrlr,
struct nvme_qpair *io_que, spdk_nvme_cmd_cb cb_fn,
struct spdk_nvme_qpair *io_que, spdk_nvme_cmd_cb cb_fn,
void *cb_arg)
{
}

28
test/lib/nvme/unit/nvme_qpair_c/nvme_qpair_ut.c
View File

@ -157,7 +157,7 @@ nvme_free_request(struct nvme_request *req)
static void
test1(void)
{
struct nvme_qpair qpair = {};
struct spdk_nvme_qpair qpair = {};
struct spdk_nvme_cmd cmd = {};
outbuf[0] = '\0';
@ -178,7 +178,7 @@ test1(void)
static void
test2(void)
{
struct nvme_qpair qpair = {};
struct spdk_nvme_qpair qpair = {};
struct spdk_nvme_cmd cmd = {};
outbuf[0] = '\0';
@ -197,7 +197,7 @@ test2(void)
}
static void
prepare_submit_request_test(struct nvme_qpair *qpair,
prepare_submit_request_test(struct spdk_nvme_qpair *qpair,
struct spdk_nvme_ctrlr *ctrlr,
struct spdk_nvme_registers *regs)
{
@ -212,13 +212,13 @@ prepare_submit_request_test(struct nvme_qpair *qpair,
}
static void
cleanup_submit_request_test(struct nvme_qpair *qpair)
cleanup_submit_request_test(struct spdk_nvme_qpair *qpair)
{
nvme_qpair_destroy(qpair);
}
static void
ut_insert_cq_entry(struct nvme_qpair *qpair, uint32_t slot)
ut_insert_cq_entry(struct spdk_nvme_qpair *qpair, uint32_t slot)
{
struct nvme_request *req;
struct nvme_tracker *tr;
@ -256,7 +256,7 @@ expected_failure_callback(void *arg, const struct spdk_nvme_cpl *cpl)
static void
test3(void)
{
struct nvme_qpair qpair = {};
struct spdk_nvme_qpair qpair = {};
struct nvme_request *req;
struct nvme_tracker *tr;
struct spdk_nvme_ctrlr ctrlr = {};
@ -295,7 +295,7 @@ test3(void)
static void
test4(void)
{
struct nvme_qpair qpair = {};
struct spdk_nvme_qpair qpair = {};
struct nvme_request *req;
struct spdk_nvme_ctrlr ctrlr = {};
struct spdk_nvme_registers regs = {};
@ -329,7 +329,7 @@ test4(void)
static void
test_sgl_req(void)
{
struct nvme_qpair qpair = {};
struct spdk_nvme_qpair qpair = {};
struct nvme_request *req;
struct spdk_nvme_ctrlr ctrlr = {};
struct spdk_nvme_registers regs = {};
@ -403,7 +403,7 @@ test_sgl_req(void)
static void
test_ctrlr_failed(void)
{
struct nvme_qpair qpair = {};
struct spdk_nvme_qpair qpair = {};
struct nvme_request *req;
struct spdk_nvme_ctrlr ctrlr = {};
struct spdk_nvme_registers regs = {};
@ -440,12 +440,12 @@ static void struct_packing(void)
* that are used in the I/O path. Make sure the I/O path fields
* all fit into two cache lines.
*/
CU_ASSERT(offsetof(struct nvme_qpair, ctrlr) <= 128);
CU_ASSERT(offsetof(struct spdk_nvme_qpair, ctrlr) <= 128);
}
static void test_nvme_qpair_fail(void)
{
struct nvme_qpair qpair = {};
struct spdk_nvme_qpair qpair = {};
struct nvme_request *req = NULL;
struct spdk_nvme_ctrlr ctrlr = {};
struct spdk_nvme_registers regs = {};
@ -476,7 +476,7 @@ static void test_nvme_qpair_fail(void)
static void test_nvme_qpair_process_completions(void)
{
struct nvme_qpair qpair = {};
struct spdk_nvme_qpair qpair = {};
struct spdk_nvme_ctrlr ctrlr = {};
struct spdk_nvme_registers regs = {};
@ -491,7 +491,7 @@ static void test_nvme_qpair_process_completions(void)
static void
test_nvme_qpair_process_completions_limit(void)
{
struct nvme_qpair qpair = {};
struct spdk_nvme_qpair qpair = {};
struct spdk_nvme_ctrlr ctrlr = {};
struct spdk_nvme_registers regs = {};
@ -522,7 +522,7 @@ test_nvme_qpair_process_completions_limit(void)
static void test_nvme_qpair_destroy(void)
{
struct nvme_qpair qpair = {};
struct spdk_nvme_qpair qpair = {};
struct spdk_nvme_ctrlr ctrlr = {};
struct spdk_nvme_registers regs = {};
struct nvme_tracker *tr_temp;