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authorFelix Beck <felix.beck@de.ibm.com>2010-07-16 17:37:42 +0400
committerJames Bottomley <James.Bottomley@suse.de>2010-07-28 18:48:56 +0400
commitef3eb71d8ba4fd9d48c5f9310bc9d90ca00323b4 (patch)
tree9903cbae6c03184687c51b4be926572913cda93f /drivers/s390/scsi/zfcp_fsf.h
parentdcc18f48a2f1a44c5e8848f30d0cf53a8066c62a (diff)
downloadlinux-ef3eb71d8ba4fd9d48c5f9310bc9d90ca00323b4.tar.xz
[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.h24
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];