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nvme_fc: Sync FC-NVME header with standard

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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>
This commit is contained in:
James Smart 2017-03-23 20:41:22 -07:00 committed by Jens Axboe
parent fd8563ced8
commit 0f222ccce3
1 changed files with 59 additions and 9 deletions
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68
include/linux/nvme-fc.h
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@ -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