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nvme: add path status codes (TP 4028)

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Change-Id: Ifac14f74f6b7681fccbf463f744d145ae8299240
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-on: https://review.gerrithub.io/415892
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
This commit is contained in:
Daniel Verkamp 2018-06-18 14:47:24 -07:00 committed by Jim Harris
parent 5e9dbb5e92
commit 5df15facd2
3 changed files with 51 additions and 2 deletions
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21
include/spdk/nvme_spec.h
View File

@ -562,7 +562,8 @@ enum spdk_nvme_status_code_type {
SPDK_NVME_SCT_GENERIC = 0x0,
SPDK_NVME_SCT_COMMAND_SPECIFIC = 0x1,
SPDK_NVME_SCT_MEDIA_ERROR = 0x2,
/* 0x3-0x6 - reserved */
SPDK_NVME_SCT_PATH = 0x3,
/* 0x4-0x6 - reserved */
SPDK_NVME_SCT_VENDOR_SPECIFIC = 0x7,
};
@ -669,6 +670,18 @@ enum spdk_nvme_media_error_status_code {
SPDK_NVME_SC_DEALLOCATED_OR_UNWRITTEN_BLOCK = 0x87,
};
/**
* Path related status codes
*/
enum spdk_nvme_path_status_code {
SPDK_NVME_SC_INTERNAL_PATH_ERROR = 0x00,
SPDK_NVME_SC_CONTROLLER_PATH_ERROR = 0x60,
SPDK_NVME_SC_HOST_PATH_ERROR = 0x70,
SPDK_NVME_SC_ABORTED_BY_HOST = 0x71,
};
/**
* Admin opcodes
*/
@ -1728,7 +1741,11 @@ struct spdk_nvme_error_information_entry {
uint64_t lba;
uint32_t nsid;
uint8_t vendor_specific;
uint8_t reserved[35];
uint8_t trtype;
uint8_t reserved30[2];
uint64_t command_specific;
uint16_t trtype_specific;
uint8_t reserved42[22];
};
SPDK_STATIC_ASSERT(sizeof(struct spdk_nvme_error_information_entry) == 64, "Incorrect size");

22
lib/nvme/nvme_qpair.c
View File

@ -249,6 +249,14 @@ static const struct nvme_string media_error_status[] = {
{ 0xFFFF, "MEDIA ERROR" }
};
static const struct nvme_string path_status[] = {
{ SPDK_NVME_SC_INTERNAL_PATH_ERROR, "INTERNAL PATH ERROR" },
{ SPDK_NVME_SC_CONTROLLER_PATH_ERROR, "CONTROLLER PATH ERROR" },
{ SPDK_NVME_SC_HOST_PATH_ERROR, "HOST PATH ERROR" },
{ SPDK_NVME_SC_ABORTED_BY_HOST, "ABORTED BY HOST" },
{ 0xFFFF, "PATH ERROR" }
};
static const char *
get_status_string(uint16_t sct, uint16_t sc)
{
@ -264,6 +272,9 @@ get_status_string(uint16_t sct, uint16_t sc)
case SPDK_NVME_SCT_MEDIA_ERROR:
entry = media_error_status;
break;
case SPDK_NVME_SCT_PATH:
entry = path_status;
break;
case SPDK_NVME_SCT_VENDOR_SPECIFIC:
return "VENDOR SPECIFIC";
default:
@ -319,6 +330,17 @@ nvme_completion_is_retry(const struct spdk_nvme_cpl *cpl)
default:
return false;
}
case SPDK_NVME_SCT_PATH:
/*
* Per NVMe TP 4028 (Path and Transport Error Enhancments), retries should be
* based on the setting of the DNR bit for Internal Path Error
*/
switch ((int)cpl->status.sc) {
case SPDK_NVME_SC_INTERNAL_PATH_ERROR:
return !cpl->status.dnr;
default:
return false;
}
case SPDK_NVME_SCT_COMMAND_SPECIFIC:
case SPDK_NVME_SCT_MEDIA_ERROR:
case SPDK_NVME_SCT_VENDOR_SPECIFIC:

10
test/unit/lib/nvme/nvme_qpair.c/nvme_qpair_ut.c
View File

@ -278,6 +278,16 @@ static void test_nvme_completion_is_retry(void)
cpl.status.sct = SPDK_NVME_SCT_MEDIA_ERROR;
CU_ASSERT_FALSE(nvme_completion_is_retry(&cpl));
cpl.status.sct = SPDK_NVME_SCT_PATH;
cpl.status.sc = SPDK_NVME_SC_INTERNAL_PATH_ERROR;
cpl.status.dnr = 0;
CU_ASSERT_TRUE(nvme_completion_is_retry(&cpl));
cpl.status.sct = SPDK_NVME_SCT_PATH;
cpl.status.sc = SPDK_NVME_SC_INTERNAL_PATH_ERROR;
cpl.status.dnr = 1;
CU_ASSERT_FALSE(nvme_completion_is_retry(&cpl));
cpl.status.sct = SPDK_NVME_SCT_VENDOR_SPECIFIC;
CU_ASSERT_FALSE(nvme_completion_is_retry(&cpl));