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nvme_perf: Extract and hold DIF information in struct ns_entry

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Currently, DIF information is extracted by NVMe name space API each
time. This patch changes to extract and hold DIF information at
namespace registration and use it.

Change-Id: I6ce857bf5df5fd5972bdca8b52226d1fb81e40c7
Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-on: https://review.gerrithub.io/c/439653
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
This commit is contained in:
Shuhei Matsumoto 2019-01-16 16:29:56 +09:00 committed by Jim Harris
parent 947e7f23c2
commit f246290924
1 changed files with 36 additions and 36 deletions
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72
examples/nvme/perf/perf.c
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@ -81,9 +81,13 @@ struct ns_entry {
uint32_t io_size_blocks;
uint32_t num_io_requests;
uint64_t size_in_ios;
uint32_t block_size;
uint32_t md_size;
bool md_interleave;
bool pi_loc;
enum spdk_nvme_pi_type pi_type;
uint32_t io_flags;
char name[1024];
const struct spdk_nvme_ns_data *nsdata;
};
static const double g_latency_cutoffs[] = {
@ -408,18 +412,17 @@ task_extended_lba_setup_pi(struct ns_entry *entry, struct perf_task *task, uint6
uint32_t lba_count, bool is_write)
{
struct spdk_nvme_protection_info *pi;
uint32_t i, md_size, sector_size, pi_offset;
uint32_t i, pi_offset;
uint16_t crc16;
task->appmask = 0;
task->apptag = 0;
if (!spdk_nvme_ns_supports_extended_lba(entry->u.nvme.ns)) {
if (!entry->md_interleave) {
return;
}
if (spdk_nvme_ns_get_pi_type(entry->u.nvme.ns) ==
SPDK_NVME_FMT_NVM_PROTECTION_DISABLE) {
if (entry->pi_type == SPDK_NVME_FMT_NVM_PROTECTION_DISABLE) {
return;
}
@ -428,18 +431,14 @@ task_extended_lba_setup_pi(struct ns_entry *entry, struct perf_task *task, uint6
}
/* Type3 don't support REFTAG */
if (spdk_nvme_ns_get_pi_type(entry->u.nvme.ns) ==
SPDK_NVME_FMT_NVM_PROTECTION_TYPE3) {
if (entry->pi_type == SPDK_NVME_FMT_NVM_PROTECTION_TYPE3) {
return;
}
sector_size = spdk_nvme_ns_get_sector_size(entry->u.nvme.ns);
md_size = spdk_nvme_ns_get_md_size(entry->u.nvme.ns);
/* PI locates at the first 8 bytes of metadata,
* doesn't support now
*/
if (entry->nsdata->dps.md_start) {
if (entry->pi_loc) {
return;
}
@ -450,15 +449,15 @@ task_extended_lba_setup_pi(struct ns_entry *entry, struct perf_task *task, uint6
}
for (i = 0; i < lba_count; i++) {
pi_offset = ((sector_size + md_size) * (i + 1)) - 8;
pi_offset = (entry->block_size * (i + 1)) - 8;
pi = (struct spdk_nvme_protection_info *)(task->iov.iov_base + pi_offset);
memset(pi, 0, sizeof(*pi));
if (is_write) {
if (entry->io_flags & SPDK_NVME_IO_FLAGS_PRCHK_GUARD) {
/* CRC buffer should not include PI */
crc16 = spdk_crc16_t10dif(0, task->iov.iov_base + (sector_size + md_size) * i,
sector_size + md_size - 8);
crc16 = spdk_crc16_t10dif(0, task->iov.iov_base + entry->block_size * i,
entry->block_size - 8);
to_be16(&pi->guard, crc16);
}
if (entry->io_flags & SPDK_NVME_IO_FLAGS_PRCHK_APPTAG) {
@ -477,32 +476,28 @@ task_extended_lba_pi_verify(struct ns_entry *entry, struct perf_task *task,
uint64_t lba, uint32_t lba_count)
{
struct spdk_nvme_protection_info *pi;
uint32_t i, md_size, sector_size, pi_offset, ref_tag;
uint32_t i, pi_offset, ref_tag;
uint16_t crc16, guard, app_tag;
if (spdk_nvme_ns_get_pi_type(entry->u.nvme.ns) ==
SPDK_NVME_FMT_NVM_PROTECTION_DISABLE) {
if (entry->pi_type == SPDK_NVME_FMT_NVM_PROTECTION_DISABLE) {
return;
}
sector_size = spdk_nvme_ns_get_sector_size(entry->u.nvme.ns);
md_size = spdk_nvme_ns_get_md_size(entry->u.nvme.ns);
/* PI locates at the first 8 bytes of metadata,
* doesn't support now
*/
if (entry->nsdata->dps.md_start) {
if (entry->pi_loc) {
return;
}
for (i = 0; i < lba_count; i++) {
pi_offset = ((sector_size + md_size) * (i + 1)) - 8;
pi_offset = (entry->block_size * (i + 1)) - 8;
pi = (struct spdk_nvme_protection_info *)(task->iov.iov_base + pi_offset);
if (entry->io_flags & SPDK_NVME_IO_FLAGS_PRCHK_GUARD) {
/* CRC buffer should not include last 8 bytes of PI */
crc16 = spdk_crc16_t10dif(0, task->iov.iov_base + (sector_size + md_size) * i,
sector_size + md_size - 8);
crc16 = spdk_crc16_t10dif(0, task->iov.iov_base + entry->block_size * i,
entry->block_size - 8);
to_be16(&guard, crc16);
if (pi->guard != guard) {
fprintf(stdout, "Get Guard Error LBA 0x%16.16"PRIx64","
@ -643,7 +638,7 @@ register_ns(struct spdk_nvme_ctrlr *ctrlr, struct spdk_nvme_ns *ns)
{
struct ns_entry *entry;
const struct spdk_nvme_ctrlr_data *cdata;
uint32_t max_xfer_size, entries;
uint32_t max_xfer_size, entries, ns_size, sector_size;
struct spdk_nvme_io_qpair_opts opts;
cdata = spdk_nvme_ctrlr_get_data(ctrlr);
@ -656,12 +651,14 @@ register_ns(struct spdk_nvme_ctrlr *ctrlr, struct spdk_nvme_ns *ns)
return;
}
if (spdk_nvme_ns_get_size(ns) < g_io_size_bytes ||
spdk_nvme_ns_get_sector_size(ns) > g_io_size_bytes) {
ns_size = spdk_nvme_ns_get_size(ns);
sector_size = spdk_nvme_ns_get_sector_size(ns);
if (ns_size < g_io_size_bytes || sector_size > g_io_size_bytes) {
printf("WARNING: controller %-20.20s (%-20.20s) ns %u has invalid "
"ns size %" PRIu64 " / block size %u for I/O size %u\n",
"ns size %u / block size %u for I/O size %u\n",
cdata->mn, cdata->sn, spdk_nvme_ns_get_id(ns),
spdk_nvme_ns_get_size(ns), spdk_nvme_ns_get_sector_size(ns), g_io_size_bytes);
ns_size, spdk_nvme_ns_get_sector_size(ns), g_io_size_bytes);
g_warn = true;
return;
}
@ -693,24 +690,27 @@ register_ns(struct spdk_nvme_ctrlr *ctrlr, struct spdk_nvme_ns *ns)
entry->u.nvme.ns = ns;
entry->num_io_requests = entries;
entry->size_in_ios = spdk_nvme_ns_get_size(ns) /
g_io_size_bytes;
entry->io_size_blocks = g_io_size_bytes / spdk_nvme_ns_get_sector_size(ns);
entry->size_in_ios = ns_size / g_io_size_bytes;
entry->io_size_blocks = g_io_size_bytes / sector_size;
entry->block_size = spdk_nvme_ns_get_extended_sector_size(ns);
entry->md_size = spdk_nvme_ns_get_md_size(ns);
entry->md_interleave = spdk_nvme_ns_supports_extended_lba(ns);
entry->pi_loc = spdk_nvme_ns_get_data(ns)->dps.md_start;
entry->pi_type = spdk_nvme_ns_get_pi_type(ns);
if (spdk_nvme_ns_get_flags(ns) & SPDK_NVME_NS_DPS_PI_SUPPORTED) {
entry->io_flags = g_metacfg_pract_flag | g_metacfg_prchk_flags;
}
if (g_max_io_md_size < spdk_nvme_ns_get_md_size(ns)) {
g_max_io_md_size = spdk_nvme_ns_get_md_size(ns);
if (g_max_io_md_size < entry->md_size) {
g_max_io_md_size = entry->md_size;
}
if (g_max_io_size_blocks < entry->io_size_blocks) {
g_max_io_size_blocks = entry->io_size_blocks;
}
entry->nsdata = spdk_nvme_ns_get_data(ns);
snprintf(entry->name, 44, "%-20.20s (%-20.20s)", cdata->mn, cdata->sn);
g_num_namespaces++;