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nvme: add guard e2e data protection tests for extended lba format

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Change-Id: Ic39df70ebf1dbc22c9d1898f0a9608446fad4656
Signed-off-by: Changpeng Liu <changpeng.liu@intel.com>
This commit is contained in:
Changpeng Liu 2016-09-29 08:37:02 +08:00 committed by Daniel Verkamp
parent a5f0d9358d
commit 8646b06a6e
1 changed files with 119 additions and 30 deletions
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149
test/lib/nvme/e2edp/nvme_dp.c
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@ -68,6 +68,23 @@ static uint16_t swap16(uint16_t value)
return result;
}
static uint16_t crc16_t10dif(uint8_t *buf, size_t len)
{
uint32_t rem = 0;
unsigned int i, j;
uint16_t poly = 0x8bb7;
for (i = 0; i < len; i++) {
rem = rem ^ (buf[i] << 8);
for (j = 0; j < 8; j++) {
rem = rem << 1;
rem = (rem & 0x10000) ? rem ^ poly : rem;
}
}
return (uint16_t)rem;
}
#define MAX_DEVS 64
#define DATA_PATTERN 0x5A
@ -89,6 +106,9 @@ struct io_request {
void *contig;
void *metadata;
bool use_extended_lba;
bool use_sgl;
uint32_t sgl_offset;
uint32_t buf_size;
uint64_t lba;
uint32_t lba_count;
uint16_t apptag_mask;
@ -104,6 +124,85 @@ io_complete(void *ctx, const struct spdk_nvme_cpl *cpl)
io_complete_flag = 1;
}
static void
ns_data_buffer_reset(struct spdk_nvme_ns *ns, struct io_request *req, uint8_t data_pattern)
{
uint32_t md_size, sector_size;
uint32_t i, offset = 0;
uint8_t *buf;
sector_size = spdk_nvme_ns_get_sector_size(ns);
md_size = spdk_nvme_ns_get_md_size(ns);
for (i = 0; i < req->lba_count; i++) {
if (req->use_extended_lba)
offset = (sector_size + md_size) * i;
else
offset = sector_size * i;
buf = (uint8_t *)req->contig + offset;
memset(buf, data_pattern, sector_size);
}
}
static void nvme_req_reset_sgl(void *cb_arg, uint32_t sgl_offset)
{
struct io_request *req = (struct io_request *)cb_arg;
req->sgl_offset = sgl_offset;
return;
}
static int nvme_req_next_sge(void *cb_arg, uint64_t *address, uint32_t *length)
{
struct io_request *req = (struct io_request *)cb_arg;
void *payload;
payload = req->contig + req->sgl_offset;
*address = spdk_vtophys(payload);
*length = req->buf_size - req->sgl_offset;
return 0;
}
/* CRC-16 Guard checked for extended lba format */
static uint32_t dp_guard_check_extended_lba_test(struct spdk_nvme_ns *ns, struct io_request *req,
uint32_t *io_flags)
{
struct spdk_nvme_protection_info *pi;
uint32_t md_size, sector_size;
req->lba_count = 2;
/* extended LBA only for the test case */
if (!(spdk_nvme_ns_supports_extended_lba(ns)))
return 0;
sector_size = spdk_nvme_ns_get_sector_size(ns);
md_size = spdk_nvme_ns_get_md_size(ns);
req->contig = rte_zmalloc(NULL, (sector_size + md_size) * req->lba_count, 0x1000);
if (!req->contig)
return 0;
req->lba = 0x200000;
req->use_extended_lba = true;
req->use_sgl = true;
req->buf_size = (sector_size + md_size) * req->lba_count;
req->metadata = NULL;
ns_data_buffer_reset(ns, req, DATA_PATTERN);
pi = (struct spdk_nvme_protection_info *)(req->contig + sector_size + md_size - 8);
/* big-endian for guard */
pi->guard = swap16(crc16_t10dif(req->contig, sector_size));
pi = (struct spdk_nvme_protection_info *)(req->contig + (sector_size + md_size) * 2 - 8);
pi->guard = swap16(crc16_t10dif(req->contig + sector_size + md_size, sector_size));
*io_flags = SPDK_NVME_IO_FLAGS_PRCHK_GUARD;
return req->lba_count;
}
/*
* No protection information with PRACT setting to 1,
* both extended LBA format and separate metadata can
@ -135,6 +234,7 @@ static uint32_t dp_with_pract_test(struct spdk_nvme_ns *ns, struct io_request *r
*io_flags = 0;
break;
}
req->lba = 0x100000;
req->use_extended_lba = false;
req->metadata = NULL;
@ -162,7 +262,7 @@ static uint32_t dp_without_pract_extended_lba_test(struct spdk_nvme_ns *ns, stru
if (!(spdk_nvme_ns_supports_extended_lba(ns)))
return 0;
sector_size = spdk_nvme_ns_get_sector_size(ns);;
sector_size = spdk_nvme_ns_get_sector_size(ns);
md_size = spdk_nvme_ns_get_md_size(ns);
req->contig = rte_zmalloc(NULL, (sector_size + md_size) * req->lba_count, 0x1000);
if (!req->contig)
@ -196,7 +296,7 @@ static uint32_t dp_without_flags_extended_lba_test(struct spdk_nvme_ns *ns, stru
if (!(spdk_nvme_ns_supports_extended_lba(ns)))
return 0;
sector_size = spdk_nvme_ns_get_sector_size(ns);;
sector_size = spdk_nvme_ns_get_sector_size(ns);
md_size = spdk_nvme_ns_get_md_size(ns);
req->contig = rte_zmalloc(NULL, (sector_size + md_size) * req->lba_count, 0x1000);
if (!req->contig)
@ -230,7 +330,7 @@ static uint32_t dp_without_pract_separate_meta_test(struct spdk_nvme_ns *ns, str
if (spdk_nvme_ns_supports_extended_lba(ns))
return 0;
sector_size = spdk_nvme_ns_get_sector_size(ns);;
sector_size = spdk_nvme_ns_get_sector_size(ns);
md_size = spdk_nvme_ns_get_md_size(ns);
req->contig = rte_zmalloc(NULL, sector_size * req->lba_count, 0x1000);
if (!req->contig)
@ -273,7 +373,7 @@ static uint32_t dp_without_pract_separate_meta_apptag_test(struct spdk_nvme_ns *
if (spdk_nvme_ns_supports_extended_lba(ns))
return 0;
sector_size = spdk_nvme_ns_get_sector_size(ns);;
sector_size = spdk_nvme_ns_get_sector_size(ns);
md_size = spdk_nvme_ns_get_md_size(ns);
req->contig = rte_zmalloc(NULL, sector_size * req->lba_count, 0x1000);
if (!req->contig)
@ -314,7 +414,7 @@ static uint32_t dp_without_flags_separate_meta_test(struct spdk_nvme_ns *ns, str
if (spdk_nvme_ns_supports_extended_lba(ns))
return 0;
sector_size = spdk_nvme_ns_get_sector_size(ns);;
sector_size = spdk_nvme_ns_get_sector_size(ns);
md_size = spdk_nvme_ns_get_md_size(ns);
req->contig = rte_zmalloc(NULL, sector_size * req->lba_count, 0x1000);
if (!req->contig)
@ -352,27 +452,6 @@ free_req(struct io_request *req)
rte_free(req);
}
static void
ns_data_buffer_reset(struct spdk_nvme_ns *ns, struct io_request *req, uint8_t data_pattern)
{
uint32_t md_size, sector_size;
uint32_t i, offset = 0;
uint8_t *buf;
sector_size = spdk_nvme_ns_get_sector_size(ns);
md_size = spdk_nvme_ns_get_md_size(ns);
for (i = 0; i < req->lba_count; i++) {
if (req->use_extended_lba)
offset = (sector_size + md_size) * i;
else
offset = sector_size * i;
buf = (uint8_t *)req->contig + offset;
memset(buf, data_pattern, sector_size);
}
}
static int
ns_data_buffer_compare(struct spdk_nvme_ns *ns, struct io_request *req, uint8_t data_pattern)
{
@ -449,12 +528,16 @@ write_read_e2e_dp_tests(struct dev *dev, nvme_build_io_req_fn_t build_io_fn, con
}
ns_data_buffer_reset(ns, req, DATA_PATTERN);
if (req->use_extended_lba)
if (req->use_extended_lba && req->use_sgl) {
rc = spdk_nvme_ns_cmd_writev(ns, qpair, req->lba, lba_count, io_complete, req, io_flags,
nvme_req_reset_sgl, nvme_req_next_sge);
} else if (req->use_extended_lba) {
rc = spdk_nvme_ns_cmd_write(ns, qpair, req->contig, req->lba, lba_count,
io_complete, req, io_flags);
else
} else {
rc = spdk_nvme_ns_cmd_write_with_md(ns, qpair, req->contig, req->metadata, req->lba, lba_count,
io_complete, req, io_flags, req->apptag_mask, req->apptag);
}
if (rc != 0) {
fprintf(stderr, "%s: %s write submit failed\n", dev->name, test_name);
@ -479,12 +562,17 @@ write_read_e2e_dp_tests(struct dev *dev, nvme_build_io_req_fn_t build_io_fn, con
io_complete_flag = 0;
ns_data_buffer_reset(ns, req, 0);
if (req->use_extended_lba)
if (req->use_extended_lba && req->use_sgl) {
rc = spdk_nvme_ns_cmd_readv(ns, qpair, req->lba, lba_count, io_complete, req, io_flags,
nvme_req_reset_sgl, nvme_req_next_sge);
} else if (req->use_extended_lba) {
rc = spdk_nvme_ns_cmd_read(ns, qpair, req->contig, req->lba, lba_count,
io_complete, req, io_flags);
else
} else {
rc = spdk_nvme_ns_cmd_read_with_md(ns, qpair, req->contig, req->metadata, req->lba, lba_count,
io_complete, req, io_flags, req->apptag_mask, req->apptag);
}
if (rc != 0) {
fprintf(stderr, "%s: %s read failed\n", dev->name, test_name);
@ -580,6 +668,7 @@ int main(int argc, char **argv)
foreach_dev(iter) {
#define TEST(x) write_read_e2e_dp_tests(iter, x, #x)
if (TEST(dp_with_pract_test)
|| TEST(dp_guard_check_extended_lba_test)
|| TEST(dp_without_pract_extended_lba_test)
|| TEST(dp_without_flags_extended_lba_test)
|| TEST(dp_without_pract_separate_meta_test)