Merge mulgrave-w:git/scsi-misc-2.6
[linux-2.6.git] / drivers / scsi / iscsi_tcp.h
index e357013..3273683 100644 (file)
 #define IN_PROGRESS_DDIGEST_RECV       0x3
 
 /* xmit state machine */
-#define        XMSTATE_IDLE                    0x0
-#define        XMSTATE_R_HDR                   0x1
-#define        XMSTATE_W_HDR                   0x2
-#define        XMSTATE_IMM_HDR                 0x4
-#define        XMSTATE_IMM_DATA                0x8
-#define        XMSTATE_UNS_INIT                0x10
-#define        XMSTATE_UNS_HDR                 0x20
-#define        XMSTATE_UNS_DATA                0x40
-#define        XMSTATE_SOL_HDR                 0x80
-#define        XMSTATE_SOL_DATA                0x100
-#define        XMSTATE_W_PAD                   0x200
-#define XMSTATE_DATA_DIGEST            0x400
-
-#define ISCSI_CONN_RCVBUF_MIN          262144
-#define ISCSI_CONN_SNDBUF_MIN          262144
+#define XMSTATE_IDLE                   0x0
+#define XMSTATE_R_HDR                  0x1
+#define XMSTATE_W_HDR                  0x2
+#define XMSTATE_IMM_HDR                        0x4
+#define XMSTATE_IMM_DATA               0x8
+#define XMSTATE_UNS_INIT               0x10
+#define XMSTATE_UNS_HDR                        0x20
+#define XMSTATE_UNS_DATA               0x40
+#define XMSTATE_SOL_HDR                        0x80
+#define XMSTATE_SOL_DATA               0x100
+#define XMSTATE_W_PAD                  0x200
+#define XMSTATE_W_RESEND_PAD           0x400
+#define XMSTATE_W_RESEND_DATA_DIGEST   0x800
+
 #define ISCSI_PAD_LEN                  4
-#define ISCSI_R2T_MAX                  16
 #define ISCSI_SG_TABLESIZE             SG_ALL
 #define ISCSI_TCP_MAX_CMD_LEN          16
 
@@ -85,9 +83,6 @@ struct iscsi_tcp_conn {
        /* iSCSI connection-wide sequencing */
        int                     hdr_size;       /* PDU header size */
 
-       struct crypto_hash      *rx_tfm;        /* CRC32C (Rx) */
-       struct hash_desc        data_rx_hash;   /* CRC32C (Rx) for data */
-
        /* control data */
        struct iscsi_tcp_recv   in;             /* TCP receive context */
        int                     in_progress;    /* connection state machine */
@@ -97,9 +92,9 @@ struct iscsi_tcp_conn {
        void                    (*old_state_change)(struct sock *);
        void                    (*old_write_space)(struct sock *);
 
-       /* xmit */
-       struct crypto_hash      *tx_tfm;        /* CRC32C (Tx) */
-       struct hash_desc        data_tx_hash;   /* CRC32C (Tx) for data */
+       /* data and header digests */
+       struct hash_desc        tx_hash;        /* CRC32C (Tx) */
+       struct hash_desc        rx_hash;        /* CRC32C (Rx) */
 
        /* MIB custom statistics */
        uint32_t                sendpage_failures_cnt;
@@ -158,19 +153,15 @@ struct iscsi_tcp_cmd_task {
        struct scatterlist      *bad_sg;                /* assert statement */
        int                     sg_count;               /* SG's to process  */
        uint32_t                exp_r2tsn;
-       int                     r2t_data_count;         /* R2T Data-Out bytes */
        int                     data_offset;
        struct iscsi_r2t_info   *r2t;                   /* in progress R2T    */
        struct iscsi_queue      r2tpool;
        struct kfifo            *r2tqueue;
        struct iscsi_r2t_info   **r2ts;
-       uint32_t                datadigest;             /* for recover digest */
        int                     digest_count;
        uint32_t                immdigest;              /* for imm data */
        struct iscsi_buf        immbuf;                 /* for imm data digest */
-       struct iscsi_data_task  *dtask;         /* data task in progress*/
        struct iscsi_data_task  unsol_dtask;    /* unsol data task */
-       int                     digest_offset;  /* for partial buff digest */
 };
 
 #endif /* ISCSI_H */