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| author |   Christof Schmitt <christof.schmitt@de.ibm.com> | 2009-11-24 16:54:08 +0100 |
|---|---|---|
| committer |   James Bottomley <James.Bottomley@suse.de> | 2009-12-04 12:02:10 -0600 |
| commit | 4318e08c84e4916ac463002ffb7f9901ddb3c385 (patch) | |
| tree | ebce82e85a0d2010c98d0585a5b94113981ee357 /drivers/s390/scsi/zfcp_def.h | |
| parent | [SCSI] zfcp: Dont fail SCSI commands when transitioning to blocked fc_rport (diff) | |
| download | linux-dev-4318e08c84e4916ac463002ffb7f9901ddb3c385.tar.xz linux-dev-4318e08c84e4916ac463002ffb7f9901ddb3c385.zip | |
[SCSI] zfcp: Update FCP protocol related code
Use common data structures for FCP CMND, FCP RSP and related
definitions and remove zfcp private definitions. Split the FCP CMND
setup and FCP RSP evaluation code in seperate functions. Use inline
functions to not negatively impact the I/O path.
Reviewed-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Diffstat (limited to 'drivers/s390/scsi/zfcp_def.h')
| -rw-r--r-- | drivers/s390/scsi/zfcp_def.h | 57 |
1 files changed, 0 insertions, 57 deletions
diff --git a/drivers/s390/scsi/zfcp_def.h b/drivers/s390/scsi/zfcp_def.h index 08fa31302f75..0317e7f20850 100644 --- a/drivers/s390/scsi/zfcp_def.h +++ b/drivers/s390/scsi/zfcp_def.h @@ -73,65 +73,8 @@ /*************** FIBRE CHANNEL PROTOCOL SPECIFIC DEFINES ********************/ -/* task attribute values in FCP-2 FCP_CMND IU */ -#define SIMPLE_Q 0 -#define HEAD_OF_Q 1 -#define ORDERED_Q 2 -#define ACA_Q 4 -#define UNTAGGED 5 - -/* task management flags in FCP-2 FCP_CMND IU */ -#define FCP_CLEAR_ACA 0x40 -#define FCP_TARGET_RESET 0x20 -#define FCP_LOGICAL_UNIT_RESET 0x10 -#define FCP_CLEAR_TASK_SET 0x04 -#define FCP_ABORT_TASK_SET 0x02 - -#define FCP_CDB_LENGTH 16 - #define ZFCP_DID_MASK 0x00FFFFFF -/* FCP(-2) FCP_CMND IU */ -struct fcp_cmnd_iu { - u64 fcp_lun; /* FCP logical unit number */ - u8 crn; /* command reference number */ - u8 reserved0:5; /* reserved */ - u8 task_attribute:3; /* task attribute */ - u8 task_management_flags; /* task management flags */ - u8 add_fcp_cdb_length:6; /* additional FCP_CDB length */ - u8 rddata:1; /* read data */ - u8 wddata:1; /* write data */ - u8 fcp_cdb[FCP_CDB_LENGTH]; -} __attribute__((packed)); - -/* FCP(-2) FCP_RSP IU */ -struct fcp_rsp_iu { - u8 reserved0[10]; - union { - struct { - u8 reserved1:3; - u8 fcp_conf_req:1; - u8 fcp_resid_under:1; - u8 fcp_resid_over:1; - u8 fcp_sns_len_valid:1; - u8 fcp_rsp_len_valid:1; - } bits; - u8 value; - } validity; - u8 scsi_status; - u32 fcp_resid; - u32 fcp_sns_len; - u32 fcp_rsp_len; -} __attribute__((packed)); - - -#define RSP_CODE_GOOD 0 -#define RSP_CODE_LENGTH_MISMATCH 1 -#define RSP_CODE_FIELD_INVALID 2 -#define RSP_CODE_RO_MISMATCH 3 -#define RSP_CODE_TASKMAN_UNSUPP 4 -#define RSP_CODE_TASKMAN_FAILED 5 - /* see fc-fs */ #define LS_RSCN 0x61 #define LS_LOGO 0x05 |