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| author | Felix Beck <felix.beck@de.ibm.com> | 2010-07-16 15:37:42 +0200 |
|---|---|---|
| committer | James Bottomley <James.Bottomley@suse.de> | 2010-07-28 16:48:56 +0200 |
| commit | ef3eb71d8ba4fd9d48c5f9310bc9d90ca00323b4 (patch) | |
| tree | 9903cbae6c03184687c51b4be926572913cda93f /drivers/s390/scsi/zfcp_fsf.h | |
| parent | [SCSI] zfcp: Enable data division support for FCP devices (diff) | |
| download | linux-ef3eb71d8ba4fd9d48c5f9310bc9d90ca00323b4.tar.xz linux-ef3eb71d8ba4fd9d48c5f9310bc9d90ca00323b4.zip | |
[SCSI] zfcp: Introduce experimental support for DIF/DIX
Introduce support for DIF/DIX in zfcp: Report the capabilities for the
Scsi_host, map the protection data when issuing I/O requests and
handle the new error codes. Also add the fsf data_direction field to
the hba trace, it is useful information for debugging in that area.
This is an EXPERIMENTAL feature for now.
Signed-off-by: Felix Beck <felix.beck@de.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_fsf.h')
| -rw-r--r-- | drivers/s390/scsi/zfcp_fsf.h | 24 |
1 files changed, 21 insertions, 3 deletions
diff --git a/drivers/s390/scsi/zfcp_fsf.h b/drivers/s390/scsi/zfcp_fsf.h index ca110e386761..db8c85382dca 100644 --- a/drivers/s390/scsi/zfcp_fsf.h +++ b/drivers/s390/scsi/zfcp_fsf.h @@ -80,11 +80,15 @@ #define FSF_REQUEST_SIZE_TOO_LARGE 0x00000061 #define FSF_RESPONSE_SIZE_TOO_LARGE 0x00000062 #define FSF_SBAL_MISMATCH 0x00000063 +#define FSF_INCONSISTENT_PROT_DATA 0x00000070 +#define FSF_INVALID_PROT_PARM 0x00000071 +#define FSF_BLOCK_GUARD_CHECK_FAILURE 0x00000081 +#define FSF_APP_TAG_CHECK_FAILURE 0x00000082 +#define FSF_REF_TAG_CHECK_FAILURE 0x00000083 #define FSF_ADAPTER_STATUS_AVAILABLE 0x000000AD #define FSF_UNKNOWN_COMMAND 0x000000E2 #define FSF_UNKNOWN_OP_SUBTYPE 0x000000E3 #define FSF_INVALID_COMMAND_OPTION 0x000000E5 -/* #define FSF_ERROR 0x000000FF */ #define FSF_PROT_STATUS_QUAL_SIZE 16 #define FSF_STATUS_QUALIFIER_SIZE 16 @@ -147,6 +151,13 @@ #define FSF_DATADIR_WRITE 0x00000001 #define FSF_DATADIR_READ 0x00000002 #define FSF_DATADIR_CMND 0x00000004 +#define FSF_DATADIR_DIF_WRITE_INSERT 0x00000009 +#define FSF_DATADIR_DIF_READ_STRIP 0x0000000a +#define FSF_DATADIR_DIF_WRITE_CONVERT 0x0000000b +#define FSF_DATADIR_DIF_READ_CONVERT 0X0000000c + +/* data protection control flags */ +#define FSF_APP_TAG_CHECK_ENABLE 0x10 /* fc service class */ #define FSF_CLASS_3 0x00000003 @@ -162,6 +173,8 @@ #define FSF_FEATURE_ELS_CT_CHAINED_SBALS 0x00000020 #define FSF_FEATURE_UPDATE_ALERT 0x00000100 #define FSF_FEATURE_MEASUREMENT_DATA 0x00000200 +#define FSF_FEATURE_DIF_PROT_TYPE1 0x00010000 +#define FSF_FEATURE_DIX_PROT_TCPIP 0x00020000 /* host connection features */ #define FSF_FEATURE_NPIV_MODE 0x00000001 @@ -316,9 +329,14 @@ struct fsf_qtcb_header { struct fsf_qtcb_bottom_io { u32 data_direction; u32 service_class; - u8 res1[8]; + u8 res1; + u8 data_prot_flags; + u16 app_tag_value; + u32 ref_tag_value; u32 fcp_cmnd_length; - u8 res2[12]; + u32 data_block_length; + u32 prot_data_length; + u8 res2[4]; u8 fcp_cmnd[FSF_FCP_CMND_SIZE]; u8 fcp_rsp[FSF_FCP_RSP_SIZE]; u8 res3[64]; |