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nvme_fc/nvmet_fc: revise Create Association descriptor length 

Revises the Create Association LS for the amount of pad expected in 1.16.

Add defines for the minimum lengths that a target can accept (e.g. variable
pad lengths)

Signed-off-by: James Smart <james.smart@broadcom.com>
Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
This commit is contained in:
James Smart 2017-07-07 18:08:25 -07:00 committed by Sagi Grimberg
parent 842594c877
commit d1438ad8f3
1 changed files with 22 additions and 1 deletions
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23
include/linux/nvme-fc.h
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@ -17,6 +17,7 @@
/*
* This file contains definitions relative to FC-NVME r1.14 (16-020vB).
* The fcnvme_lsdesc_cr_assoc_cmd struct reflects expected r1.16 content.
*/
#ifndef _NVME_FC_H
@ -193,9 +194,21 @@ struct fcnvme_lsdesc_cr_assoc_cmd {
uuid_t hostid;
u8 hostnqn[FCNVME_ASSOC_HOSTNQN_LEN];
u8 subnqn[FCNVME_ASSOC_SUBNQN_LEN];
u8 rsvd632[384];
__be32 rsvd584[108]; /* pad to 1016 bytes,
* which makes overall LS rqst
* payload 1024 bytes
*/
};
#define FCNVME_LSDESC_CRA_CMD_DESC_MINLEN \
offsetof(struct fcnvme_lsdesc_cr_assoc_cmd, rsvd584)
#define FCNVME_LSDESC_CRA_CMD_DESC_MIN_DESCLEN \
(FCNVME_LSDESC_CRA_CMD_DESC_MINLEN - \
offsetof(struct fcnvme_lsdesc_cr_assoc_cmd, ersp_ratio))
/* FCNVME_LSDESC_CREATE_CONN_CMD */
struct fcnvme_lsdesc_cr_conn_cmd {
__be32 desc_tag; /* FCNVME_LSDESC_xxx */
@ -273,6 +286,14 @@ struct fcnvme_ls_cr_assoc_rqst {
struct fcnvme_lsdesc_cr_assoc_cmd assoc_cmd;
};
#define FCNVME_LSDESC_CRA_RQST_MINLEN \
(offsetof(struct fcnvme_ls_cr_assoc_rqst, assoc_cmd) + \
FCNVME_LSDESC_CRA_CMD_DESC_MINLEN)
#define FCNVME_LSDESC_CRA_RQST_MIN_LISTLEN \
FCNVME_LSDESC_CRA_CMD_DESC_MINLEN
struct fcnvme_ls_cr_assoc_acc {
struct fcnvme_ls_acc_hdr hdr;
struct fcnvme_lsdesc_assoc_id associd;