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nvme: add I/O split test with stripe size enabled

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Change-Id: I49166c2a07274cf66a8a9519805308c0db5ab13b
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
This commit is contained in:
Daniel Verkamp 2015-09-28 14:16:24 -07:00
parent ac0c37924c
commit 364331fd94
1 changed files with 118 additions and 0 deletions
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118
test/lib/nvme/unit/nvme_ns_cmd_c/nvme_ns_cmd_ut.c
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@ -190,6 +190,122 @@ split_test2(void)
nvme_free_request(g_request);
}
void
split_test3(void)
{
struct nvme_namespace ns;
struct nvme_controller ctrlr;
struct nvme_request *child;
void *payload;
uint64_t lba, cmd_lba;
uint32_t lba_count, cmd_lba_count;
int rc;
/*
* Controller has max xfer of 128 KB (256 blocks).
* Submit an I/O of 256 KB starting at LBA 10, which should be split
* into two I/Os:
* 1) LBA = 10, count = 256 blocks
* 2) LBA = 266, count = 256 blocks
*/
prepare_for_test(&ns, &ctrlr, 512, 128 * 1024, 0);
payload = malloc(256 * 1024);
lba = 10; /* Start at an LBA that isn't aligned to the stripe size */
lba_count = (256 * 1024) / 512;
rc = nvme_ns_cmd_read(&ns, payload, lba, lba_count, NULL, NULL);
CU_ASSERT(rc == 0);
CU_ASSERT_FATAL(g_request != NULL);
CU_ASSERT_FATAL(g_request->num_children == 2);
child = TAILQ_FIRST(&g_request->children);
TAILQ_REMOVE(&g_request->children, child, child_tailq);
nvme_cmd_interpret_rw(&child->cmd, &cmd_lba, &cmd_lba_count);
CU_ASSERT(child->num_children == 0);
CU_ASSERT(child->payload_size == 128 * 1024);
CU_ASSERT(cmd_lba == 10);
CU_ASSERT(cmd_lba_count == 256);
child = TAILQ_FIRST(&g_request->children);
TAILQ_REMOVE(&g_request->children, child, child_tailq);
nvme_cmd_interpret_rw(&child->cmd, &cmd_lba, &cmd_lba_count);
CU_ASSERT(child->num_children == 0);
CU_ASSERT(child->payload_size == 128 * 1024);
CU_ASSERT(cmd_lba == 266);
CU_ASSERT(cmd_lba_count == 256);
CU_ASSERT(TAILQ_EMPTY(&g_request->children));
free(payload);
nvme_free_request(g_request);
}
void
split_test4(void)
{
struct nvme_namespace ns;
struct nvme_controller ctrlr;
struct nvme_request *child;
void *payload;
uint64_t lba, cmd_lba;
uint32_t lba_count, cmd_lba_count;
int rc;
/*
* Controller has max xfer of 128 KB (256 blocks) and a stripe size of 128 KB.
* (Same as split_test3 except with driver-assisted striping enabled.)
* Submit an I/O of 256 KB starting at LBA 10, which should be split
* into three I/Os:
* 1) LBA = 10, count = 246 blocks (less than max I/O size to align to stripe size)
* 2) LBA = 256, count = 256 blocks (aligned to stripe size and max I/O size)
* 3) LBA = 512, count = 10 blocks (finish off the remaining I/O size)
*/
prepare_for_test(&ns, &ctrlr, 512, 128 * 1024, 128 * 1024);
payload = malloc(256 * 1024);
lba = 10; /* Start at an LBA that isn't aligned to the stripe size */
lba_count = (256 * 1024) / 512;
rc = nvme_ns_cmd_read(&ns, payload, lba, lba_count, NULL, NULL);
CU_ASSERT(rc == 0);
CU_ASSERT_FATAL(g_request != NULL);
CU_ASSERT_FATAL(g_request->num_children == 3);
child = TAILQ_FIRST(&g_request->children);
TAILQ_REMOVE(&g_request->children, child, child_tailq);
nvme_cmd_interpret_rw(&child->cmd, &cmd_lba, &cmd_lba_count);
CU_ASSERT(child->num_children == 0);
CU_ASSERT(child->payload_size == (256 - 10) * 512);
CU_ASSERT(cmd_lba == 10);
CU_ASSERT(cmd_lba_count == 256 - 10);
child = TAILQ_FIRST(&g_request->children);
TAILQ_REMOVE(&g_request->children, child, child_tailq);
nvme_cmd_interpret_rw(&child->cmd, &cmd_lba, &cmd_lba_count);
CU_ASSERT(child->num_children == 0);
CU_ASSERT(child->payload_size == 128 * 1024);
CU_ASSERT(cmd_lba == 256);
CU_ASSERT(cmd_lba_count == 256);
child = TAILQ_FIRST(&g_request->children);
TAILQ_REMOVE(&g_request->children, child, child_tailq);
nvme_cmd_interpret_rw(&child->cmd, &cmd_lba, &cmd_lba_count);
CU_ASSERT(child->num_children == 0);
CU_ASSERT(child->payload_size == 10 * 512);
CU_ASSERT(cmd_lba == 512);
CU_ASSERT(cmd_lba_count == 10);
CU_ASSERT(TAILQ_EMPTY(&g_request->children));
free(payload);
nvme_free_request(g_request);
}
void
test_nvme_ns_cmd_flush(void)
{
@ -253,6 +369,8 @@ int main(int argc, char **argv)
if (
CU_add_test(suite, "split_test", split_test) == NULL
|| CU_add_test(suite, "split_test2", split_test2) == NULL
|| CU_add_test(suite, "split_test3", split_test3) == NULL
|| CU_add_test(suite, "split_test4", split_test4) == NULL
|| CU_add_test(suite, "nvme_ns_cmd_flush testing", test_nvme_ns_cmd_flush) == NULL
|| CU_add_test(suite, "nvme_ns_cmd_deallocate testing", test_nvme_ns_cmd_deallocate) == NULL
) {