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authorJames Smart <jsmart2021@gmail.com>2017-03-23 20:41:22 -0700
committerJens Axboe <axboe@fb.com>2017-04-04 09:48:23 -0600
commit0f222ccce359d21f927d07df2069e7029497b790 (patch)
treef4e71297fe0aa3a80dc2c6e88191e5d320c94071 /include/linux/nvme-fc.h
parentfd8563ced8f50c5029fdf8e57735138e2e630423 (diff)
nvme_fc: Sync FC-NVME header with standard
Update FC-NVME definitions to match FC-NVME r1.14 (16-020vB) plus change voted in by 2/22 FC-NVME Adhoc (see HOSTID below). Includes the following: - Addition of "status_code" field to ERSP IU - Addition of FC-NVME LS RJT reason_codes and reason_explanations - CreateAssociation payload, HostID field shortened to 16 bytes Signed-off-by: James Smart <james.smart@broadcom.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Sagi Grimberg <sagi@grimberg.me> Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'include/linux/nvme-fc.h')
-rw-r--r--include/linux/nvme-fc.h68
1 files changed, 59 insertions, 9 deletions
diff --git a/include/linux/nvme-fc.h b/include/linux/nvme-fc.h
index 4b45226bd604..e997c4a49a88 100644
--- a/include/linux/nvme-fc.h
+++ b/include/linux/nvme-fc.h
@@ -16,8 +16,7 @@
*/
/*
- * This file contains definitions relative to FC-NVME r1.11 and a few
- * newer items
+ * This file contains definitions relative to FC-NVME r1.14 (16-020vB).
*/
#ifndef _NVME_FC_H
@@ -47,8 +46,15 @@ struct nvme_fc_cmd_iu {
#define NVME_FC_SIZEOF_ZEROS_RSP 12
+enum {
+ FCNVME_SC_SUCCESS = 0,
+ FCNVME_SC_INVALID_FIELD = 1,
+ FCNVME_SC_INVALID_CONNID = 2,
+};
+
struct nvme_fc_ersp_iu {
- __u8 rsvd0[2];
+ __u8 status_code;
+ __u8 rsvd1;
__be16 iu_len;
__be32 rsn;
__be32 xfrd_len;
@@ -58,7 +64,7 @@ struct nvme_fc_ersp_iu {
};
-/* FC-NVME r1.03/16-119v0 NVME Link Services */
+/* FC-NVME Link Services */
enum {
FCNVME_LS_RSVD = 0,
FCNVME_LS_RJT = 1,
@@ -68,7 +74,7 @@ enum {
FCNVME_LS_DISCONNECT = 5,
};
-/* FC-NVME r1.03/16-119v0 NVME Link Service Descriptors */
+/* FC-NVME Link Service Descriptors */
enum {
FCNVME_LSDESC_RSVD = 0x0,
FCNVME_LSDESC_RQST = 0x1,
@@ -92,7 +98,6 @@ static inline __be32 fcnvme_lsdesc_len(size_t sz)
return cpu_to_be32(sz - (2 * sizeof(u32)));
}
-
struct fcnvme_ls_rqst_w0 {
u8 ls_cmd; /* FCNVME_LS_xxx */
u8 zeros[3];
@@ -106,8 +111,53 @@ struct fcnvme_lsdesc_rqst {
__be32 rsvd12;
};
+/* FC-NVME LS RJT reason_code values */
+enum fcnvme_ls_rjt_reason {
+ FCNVME_RJT_RC_NONE = 0,
+ /* no reason - not to be sent */
+
+ FCNVME_RJT_RC_INVAL = 0x01,
+ /* invalid NVMe_LS command code */
+
+ FCNVME_RJT_RC_LOGIC = 0x03,
+ /* logical error */
+
+ FCNVME_RJT_RC_UNAB = 0x09,
+ /* unable to perform command request */
+
+ FCNVME_RJT_RC_UNSUP = 0x0b,
+ /* command not supported */
+
+ FCNVME_RJT_RC_INPROG = 0x0e,
+ /* command already in progress */
+ FCNVME_RJT_RC_INV_ASSOC = 0x40,
+ /* Invalid Association ID*/
+ FCNVME_RJT_RC_INV_CONN = 0x41,
+ /* Invalid Connection ID*/
+
+ FCNVME_RJT_RC_VENDOR = 0xff,
+ /* vendor specific error */
+};
+
+/* FC-NVME LS RJT reason_explanation values */
+enum fcnvme_ls_rjt_explan {
+ FCNVME_RJT_EXP_NONE = 0x00,
+ /* No additional explanation */
+
+ FCNVME_RJT_EXP_OXID_RXID = 0x17,
+ /* invalid OX_ID-RX_ID combination */
+
+ FCNVME_RJT_EXP_INSUF_RES = 0x29,
+ /* insufficient resources */
+
+ FCNVME_RJT_EXP_UNAB_DATA = 0x2a,
+ /* unable to supply requested data */
+
+ FCNVME_RJT_EXP_INV_LEN = 0x2d,
+ /* Invalid payload length */
+};
/* FCNVME_LSDESC_RJT */
struct fcnvme_lsdesc_rjt {
@@ -119,15 +169,15 @@ struct fcnvme_lsdesc_rjt {
* Reject reason and explanaction codes are generic
* to ELs's from LS-3.
*/
- u8 reason_code;
- u8 reason_explanation;
+ u8 reason_code; /* fcnvme_ls_rjt_reason */
+ u8 reason_explanation; /* fcnvme_ls_rjt_explan */
u8 vendor;
__be32 rsvd12;
};
-#define FCNVME_ASSOC_HOSTID_LEN 64
+#define FCNVME_ASSOC_HOSTID_LEN 16
#define FCNVME_ASSOC_HOSTNQN_LEN 256
#define FCNVME_ASSOC_SUBNQN_LEN 256