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path: root/drivers/scsi/iscsi_tcp.h
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Diffstat (limited to 'drivers/scsi/iscsi_tcp.h')
-rw-r--r--drivers/scsi/iscsi_tcp.h43
1 files changed, 17 insertions, 26 deletions
diff --git a/drivers/scsi/iscsi_tcp.h b/drivers/scsi/iscsi_tcp.h
index e35701305fc..32736831790 100644
--- a/drivers/scsi/iscsi_tcp.h
+++ b/drivers/scsi/iscsi_tcp.h
@@ -31,23 +31,21 @@
#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 */