diff --git a/test/unit/lib/nvme/nvme_ns_cmd.c/nvme_ns_cmd_ut.c b/test/unit/lib/nvme/nvme_ns_cmd.c/nvme_ns_cmd_ut.c index c81d42be1..d72005143 100644 --- a/test/unit/lib/nvme/nvme_ns_cmd.c/nvme_ns_cmd_ut.c +++ b/test/unit/lib/nvme/nvme_ns_cmd.c/nvme_ns_cmd_ut.c @@ -746,6 +746,226 @@ test_nvme_ns_cmd_comparev(void) cleanup_after_test(&qpair); } +static void +test_nvme_ns_cmd_comparev_with_md(void) +{ + struct spdk_nvme_ns ns; + struct spdk_nvme_ctrlr ctrlr; + struct spdk_nvme_qpair qpair; + int rc = 0; + char *buffer = NULL; + char *metadata = NULL; + uint32_t block_size, md_size; + struct nvme_request *child0, *child1; + uint32_t lba_count = 256; + uint32_t sector_size = 512; + uint64_t sge_length = lba_count * sector_size; + + block_size = 512; + md_size = 128; + + buffer = malloc((block_size + md_size) * 384); + SPDK_CU_ASSERT_FATAL(buffer != NULL); + metadata = malloc(md_size * 384); + SPDK_CU_ASSERT_FATAL(metadata != NULL); + + /* + * 512 byte data + 128 byte metadata + * Separate metadata buffer + * Max data transfer size 128 KB + * No stripe size + * + * 256 blocks * 512 bytes per block = single 128 KB I/O (no splitting required) + */ + prepare_for_test(&ns, &ctrlr, &qpair, 512, 128, 128 * 1024, 0, false); + + rc = spdk_nvme_ns_cmd_comparev_with_md(&ns, &qpair, 0x1000, 256, NULL, &sge_length, 0, + nvme_request_reset_sgl, nvme_request_next_sge, metadata, 0, 0); + + SPDK_CU_ASSERT_FATAL(rc == 0); + SPDK_CU_ASSERT_FATAL(g_request != NULL); + SPDK_CU_ASSERT_FATAL(g_request->num_children == 0); + + CU_ASSERT(g_request->payload.md == metadata); + CU_ASSERT(g_request->payload_size == 256 * 512); + + nvme_free_request(g_request); + cleanup_after_test(&qpair); + + /* + * 512 byte data + 128 byte metadata + * Extended LBA + * Max data transfer size 128 KB + * No stripe size + * + * 256 blocks * (512 + 128) bytes per block = two I/Os: + * child 0: 204 blocks - 204 * (512 + 128) = 127.5 KB + * child 1: 52 blocks + */ + prepare_for_test(&ns, &ctrlr, &qpair, 512, 128, 128 * 1024, 0, true); + + rc = spdk_nvme_ns_cmd_comparev_with_md(&ns, &qpair, 0x1000, 256, NULL, &sge_length, 0, + nvme_request_reset_sgl, nvme_request_next_sge, NULL, 0, 0); + + SPDK_CU_ASSERT_FATAL(rc == 0); + SPDK_CU_ASSERT_FATAL(g_request != NULL); + SPDK_CU_ASSERT_FATAL(g_request->num_children == 2); + child0 = TAILQ_FIRST(&g_request->children); + + SPDK_CU_ASSERT_FATAL(child0 != NULL); + CU_ASSERT(child0->payload.md == NULL); + CU_ASSERT(child0->payload_offset == 0); + CU_ASSERT(child0->payload_size == 204 * (512 + 128)); + child1 = TAILQ_NEXT(child0, child_tailq); + + SPDK_CU_ASSERT_FATAL(child1 != NULL); + CU_ASSERT(child1->payload.md == NULL); + CU_ASSERT(child1->payload_offset == 204 * (512 + 128)); + CU_ASSERT(child1->payload_size == 52 * (512 + 128)); + + nvme_request_free_children(g_request); + nvme_free_request(g_request); + cleanup_after_test(&qpair); + + /* + * 512 byte data + 8 byte metadata + * Extended LBA + * Max data transfer size 128 KB + * No stripe size + * No protection information + * + * 256 blocks * (512 + 8) bytes per block = two I/Os: + * child 0: 252 blocks - 252 * (512 + 8) = 127.96875 KB + * child 1: 4 blocks + */ + prepare_for_test(&ns, &ctrlr, &qpair, 512, 8, 128 * 1024, 0, true); + + rc = spdk_nvme_ns_cmd_comparev_with_md(&ns, &qpair, 0x1000, 256, NULL, &sge_length, 0, + nvme_request_reset_sgl, nvme_request_next_sge, NULL, 0, 0); + + SPDK_CU_ASSERT_FATAL(rc == 0); + SPDK_CU_ASSERT_FATAL(g_request != NULL); + SPDK_CU_ASSERT_FATAL(g_request->num_children == 2); + child0 = TAILQ_FIRST(&g_request->children); + + SPDK_CU_ASSERT_FATAL(child0 != NULL); + CU_ASSERT(child0->payload.md == NULL); + CU_ASSERT(child0->payload_offset == 0); + CU_ASSERT(child0->payload_size == 252 * (512 + 8)); + child1 = TAILQ_NEXT(child0, child_tailq); + + SPDK_CU_ASSERT_FATAL(child1 != NULL); + CU_ASSERT(child1->payload.md == NULL); + CU_ASSERT(child1->payload_offset == 252 * (512 + 8)); + CU_ASSERT(child1->payload_size == 4 * (512 + 8)); + + nvme_request_free_children(g_request); + nvme_free_request(g_request); + cleanup_after_test(&qpair); + + /* + * 512 byte data + 8 byte metadata + * Extended LBA + * Max data transfer size 128 KB + * No stripe size + * Protection information enabled + PRACT + * + * Special case for 8-byte metadata + PI + PRACT: no metadata transferred + * In theory, 256 blocks * 512 bytes per block = one I/O (128 KB) + * However, the splitting code does not account for PRACT when calculating + * max sectors per transfer, so we actually get two I/Os: + * child 0: 252 blocks + * child 1: 4 blocks + */ + prepare_for_test(&ns, &ctrlr, &qpair, 512, 8, 128 * 1024, 0, true); + ns.flags |= SPDK_NVME_NS_DPS_PI_SUPPORTED; + + rc = spdk_nvme_ns_cmd_comparev_with_md(&ns, &qpair, 0x1000, 256, NULL, &sge_length, + SPDK_NVME_IO_FLAGS_PRACT, nvme_request_reset_sgl, nvme_request_next_sge, NULL, 0, 0); + + SPDK_CU_ASSERT_FATAL(rc == 0); + SPDK_CU_ASSERT_FATAL(g_request != NULL); + SPDK_CU_ASSERT_FATAL(g_request->num_children == 2); + child0 = TAILQ_FIRST(&g_request->children); + + SPDK_CU_ASSERT_FATAL(child0 != NULL); + CU_ASSERT(child0->payload_offset == 0); + CU_ASSERT(child0->payload_size == 252 * 512); /* NOTE: does not include metadata! */ + child1 = TAILQ_NEXT(child0, child_tailq); + + SPDK_CU_ASSERT_FATAL(child1 != NULL); + CU_ASSERT(child1->payload.md == NULL); + CU_ASSERT(child1->payload_offset == 252 * 512); + CU_ASSERT(child1->payload_size == 4 * 512); + + nvme_request_free_children(g_request); + nvme_free_request(g_request); + cleanup_after_test(&qpair); + + /* + * 512 byte data + 8 byte metadata + * Separate metadata buffer + * Max data transfer size 128 KB + * No stripe size + * Protection information enabled + PRACT + */ + prepare_for_test(&ns, &ctrlr, &qpair, 512, 8, 128 * 1024, 0, false); + ns.flags |= SPDK_NVME_NS_DPS_PI_SUPPORTED; + + rc = spdk_nvme_ns_cmd_comparev_with_md(&ns, &qpair, 0x1000, 256, NULL, &sge_length, + SPDK_NVME_IO_FLAGS_PRACT, nvme_request_reset_sgl, nvme_request_next_sge, metadata, 0, 0); + + SPDK_CU_ASSERT_FATAL(rc == 0); + SPDK_CU_ASSERT_FATAL(g_request != NULL); + SPDK_CU_ASSERT_FATAL(g_request->num_children == 0); + + CU_ASSERT(g_request->payload.md == metadata); + CU_ASSERT(g_request->payload_size == 256 * 512); + + nvme_free_request(g_request); + cleanup_after_test(&qpair); + + /* + * 512 byte data + 8 byte metadata + * Separate metadata buffer + * Max data transfer size 128 KB + * No stripe size + * Protection information enabled + PRACT + * + * 384 blocks * 512 bytes = two I/Os: + * child 0: 256 blocks + * child 1: 128 blocks + */ + prepare_for_test(&ns, &ctrlr, &qpair, 512, 8, 128 * 1024, 0, false); + ns.flags |= SPDK_NVME_NS_DPS_PI_SUPPORTED; + + rc = spdk_nvme_ns_cmd_comparev_with_md(&ns, &qpair, 0x1000, 384, NULL, &sge_length, + SPDK_NVME_IO_FLAGS_PRACT, nvme_request_reset_sgl, nvme_request_next_sge, metadata, 0, 0); + + SPDK_CU_ASSERT_FATAL(rc == 0); + SPDK_CU_ASSERT_FATAL(g_request != NULL); + SPDK_CU_ASSERT_FATAL(g_request->num_children == 2); + child0 = TAILQ_FIRST(&g_request->children); + + SPDK_CU_ASSERT_FATAL(child0 != NULL); + CU_ASSERT(child0->payload_offset == 0); + CU_ASSERT(child0->payload_size == 256 * 512); + CU_ASSERT(child0->md_offset == 0); + child1 = TAILQ_NEXT(child0, child_tailq); + + SPDK_CU_ASSERT_FATAL(child1 != NULL); + CU_ASSERT(child1->payload_offset == 256 * 512); + CU_ASSERT(child1->payload_size == 128 * 512); + CU_ASSERT(child1->md_offset == 256 * 8); + + nvme_request_free_children(g_request); + nvme_free_request(g_request); + cleanup_after_test(&qpair); + + free(buffer); + free(metadata); +} + static void test_nvme_ns_cmd_compare_and_write(void) { @@ -1513,6 +1733,7 @@ int main(int argc, char **argv) || CU_add_test(suite, "nvme_ns_cmd_comparev", test_nvme_ns_cmd_comparev) == NULL || CU_add_test(suite, "nvme_ns_cmd_compare_and_write", test_nvme_ns_cmd_compare_and_write) == NULL || CU_add_test(suite, "nvme_ns_cmd_compare_with_md", test_nvme_ns_cmd_compare_with_md) == NULL + || CU_add_test(suite, "nvme_ns_cmd_comparev_with_md", test_nvme_ns_cmd_comparev_with_md) == NULL ) { CU_cleanup_registry(); return CU_get_error();