diff options
author | Kumar Gala <galak@kernel.crashing.org> | 2007-02-12 23:57:21 -0600 |
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committer | Kumar Gala <galak@kernel.crashing.org> | 2007-02-12 23:57:21 -0600 |
commit | 54c66f6d781e03dc0b23956234963c4911e6d1c0 (patch) | |
tree | 40619a66ae6d8703a57bf681d087ffeabbffd346 /include/scsi/iscsi_proto.h | |
parent | 8ce0a7df6e6117d8814e976d4b7ce6a6b2c9cf93 (diff) | |
parent | 17e0e27020d028a790d97699aff85a43af5be472 (diff) |
Merge branch 'master' into 85xx
Diffstat (limited to 'include/scsi/iscsi_proto.h')
-rw-r--r-- | include/scsi/iscsi_proto.h | 46 |
1 files changed, 27 insertions, 19 deletions
diff --git a/include/scsi/iscsi_proto.h b/include/scsi/iscsi_proto.h index 02f6e4b9e69..4a44278ed76 100644 --- a/include/scsi/iscsi_proto.h +++ b/include/scsi/iscsi_proto.h @@ -40,6 +40,14 @@ } #define zero_data(p) {p[0]=0;p[1]=0;p[2]=0;} +/* initiator tags; opaque for target */ +typedef uint32_t __bitwise__ itt_t; +/* below makes sense only for initiator that created this tag */ +#define build_itt(itt, id, age) ((__force itt_t)\ + ((itt) | ((id) << ISCSI_CID_SHIFT) | ((age) << ISCSI_AGE_SHIFT))) +#define get_itt(itt) ((__force uint32_t)(itt_t)(itt) & ISCSI_ITT_MASK) +#define RESERVED_ITT ((__force itt_t)0xffffffff) + /* * iSCSI Template Message Header */ @@ -50,7 +58,7 @@ struct iscsi_hdr { uint8_t hlength; /* AHSs total length */ uint8_t dlength[3]; /* Data length */ uint8_t lun[8]; - __be32 itt; /* Initiator Task Tag */ + itt_t itt; /* Initiator Task Tag, opaque for target */ __be32 ttt; /* Target Task Tag */ __be32 statsn; __be32 exp_statsn; @@ -111,7 +119,7 @@ struct iscsi_cmd { uint8_t hlength; uint8_t dlength[3]; uint8_t lun[8]; - __be32 itt; /* Initiator Task Tag */ + itt_t itt; /* Initiator Task Tag */ __be32 data_length; __be32 cmdsn; __be32 exp_statsn; @@ -148,7 +156,7 @@ struct iscsi_cmd_rsp { uint8_t hlength; uint8_t dlength[3]; uint8_t rsvd[8]; - __be32 itt; /* Initiator Task Tag */ + itt_t itt; /* Initiator Task Tag */ __be32 rsvd1; __be32 statsn; __be32 exp_cmdsn; @@ -206,7 +214,7 @@ struct iscsi_nopout { uint8_t rsvd3; uint8_t dlength[3]; uint8_t lun[8]; - __be32 itt; /* Initiator Task Tag */ + itt_t itt; /* Initiator Task Tag */ __be32 ttt; /* Target Transfer Tag */ __be32 cmdsn; __be32 exp_statsn; @@ -221,7 +229,7 @@ struct iscsi_nopin { uint8_t rsvd3; uint8_t dlength[3]; uint8_t lun[8]; - __be32 itt; /* Initiator Task Tag */ + itt_t itt; /* Initiator Task Tag */ __be32 ttt; /* Target Transfer Tag */ __be32 statsn; __be32 exp_cmdsn; @@ -237,8 +245,8 @@ struct iscsi_tm { uint8_t hlength; uint8_t dlength[3]; uint8_t lun[8]; - __be32 itt; /* Initiator Task Tag */ - __be32 rtt; /* Reference Task Tag */ + itt_t itt; /* Initiator Task Tag */ + itt_t rtt; /* Reference Task Tag */ __be32 cmdsn; __be32 exp_statsn; __be32 refcmdsn; @@ -267,8 +275,8 @@ struct iscsi_tm_rsp { uint8_t hlength; uint8_t dlength[3]; uint8_t rsvd2[8]; - __be32 itt; /* Initiator Task Tag */ - __be32 rtt; /* Reference Task Tag */ + itt_t itt; /* Initiator Task Tag */ + itt_t rtt; /* Reference Task Tag */ __be32 statsn; __be32 exp_cmdsn; __be32 max_cmdsn; @@ -293,7 +301,7 @@ struct iscsi_r2t_rsp { uint8_t hlength; uint8_t dlength[3]; uint8_t lun[8]; - __be32 itt; /* Initiator Task Tag */ + itt_t itt; /* Initiator Task Tag */ __be32 ttt; /* Target Transfer Tag */ __be32 statsn; __be32 exp_cmdsn; @@ -311,7 +319,7 @@ struct iscsi_data { uint8_t rsvd3; uint8_t dlength[3]; uint8_t lun[8]; - __be32 itt; + itt_t itt; __be32 ttt; __be32 rsvd4; __be32 exp_statsn; @@ -331,7 +339,7 @@ struct iscsi_data_rsp { uint8_t hlength; uint8_t dlength[3]; uint8_t lun[8]; - __be32 itt; + itt_t itt; __be32 ttt; __be32 statsn; __be32 exp_cmdsn; @@ -355,7 +363,7 @@ struct iscsi_text { uint8_t hlength; uint8_t dlength[3]; uint8_t rsvd4[8]; - __be32 itt; + itt_t itt; __be32 ttt; __be32 cmdsn; __be32 exp_statsn; @@ -373,7 +381,7 @@ struct iscsi_text_rsp { uint8_t hlength; uint8_t dlength[3]; uint8_t rsvd4[8]; - __be32 itt; + itt_t itt; __be32 ttt; __be32 statsn; __be32 exp_cmdsn; @@ -392,7 +400,7 @@ struct iscsi_login { uint8_t dlength[3]; uint8_t isid[6]; /* Initiator Session ID */ __be16 tsih; /* Target Session Handle */ - __be32 itt; /* Initiator Task Tag */ + itt_t itt; /* Initiator Task Tag */ __be16 cid; __be16 rsvd3; __be32 cmdsn; @@ -421,7 +429,7 @@ struct iscsi_login_rsp { uint8_t dlength[3]; uint8_t isid[6]; /* Initiator Session ID */ __be16 tsih; /* Target Session Handle */ - __be32 itt; /* Initiator Task Tag */ + itt_t itt; /* Initiator Task Tag */ __be32 rsvd3; __be32 statsn; __be32 exp_cmdsn; @@ -478,7 +486,7 @@ struct iscsi_logout { uint8_t hlength; uint8_t dlength[3]; uint8_t rsvd2[8]; - __be32 itt; /* Initiator Task Tag */ + itt_t itt; /* Initiator Task Tag */ __be16 cid; uint8_t rsvd3[2]; __be32 cmdsn; @@ -505,7 +513,7 @@ struct iscsi_logout_rsp { uint8_t hlength; uint8_t dlength[3]; uint8_t rsvd3[8]; - __be32 itt; /* Initiator Task Tag */ + itt_t itt; /* Initiator Task Tag */ __be32 rsvd4; __be32 statsn; __be32 exp_cmdsn; @@ -528,7 +536,7 @@ struct iscsi_snack { uint8_t opcode; uint8_t flags; uint8_t rsvd2[14]; - __be32 itt; + itt_t itt; __be32 begrun; __be32 runlength; __be32 exp_statsn; |