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| author | James Smart <jsmart2021@gmail.com> | 2017-07-07 18:08:25 -0700 |
|---|---|---|
| committer | Sagi Grimberg <sagi@grimberg.me> | 2017-07-10 09:09:57 +0300 |
| commit | d1438ad8f3eec7207618b8e01f9f3eec7b6f67c4 (patch) | |
| tree | d7b6918b32b14e392949bd3638106534b3048d61 /include/linux/nvme-fc.h | |
| parent | 842594c8775b585c58459e044708c0335b6aa6b7 (diff) | |
| download | lwn-d1438ad8f3eec7207618b8e01f9f3eec7b6f67c4.tar.gz lwn-d1438ad8f3eec7207618b8e01f9f3eec7b6f67c4.zip | |
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>
Diffstat (limited to 'include/linux/nvme-fc.h')
| -rw-r--r-- | include/linux/nvme-fc.h | 23 |
1 files changed, 22 insertions, 1 deletions
diff --git a/include/linux/nvme-fc.h b/include/linux/nvme-fc.h index bc711a10be05..21c37e39e41a 100644 --- a/include/linux/nvme-fc.h +++ b/include/linux/nvme-fc.h @@ -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; |