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Diffstat (limited to 'drivers/scsi/iscsi_tcp.h')
-rw-r--r--drivers/scsi/iscsi_tcp.h88
1 files changed, 10 insertions, 78 deletions
diff --git a/drivers/scsi/iscsi_tcp.h b/drivers/scsi/iscsi_tcp.h
index 498d8ca3984..ca6b7bc64de 100644
--- a/drivers/scsi/iscsi_tcp.h
+++ b/drivers/scsi/iscsi_tcp.h
@@ -19,67 +19,27 @@
* See the file COPYING included with this distribution for more details.
*/
-#ifndef ISCSI_TCP_H
-#define ISCSI_TCP_H
+#ifndef ISCSI_SW_TCP_H
+#define ISCSI_SW_TCP_H
#include <scsi/libiscsi.h>
+#include <scsi/libiscsi_tcp.h>
-struct crypto_hash;
struct socket;
struct iscsi_tcp_conn;
-struct iscsi_segment;
-
-typedef int iscsi_segment_done_fn_t(struct iscsi_tcp_conn *,
- struct iscsi_segment *);
-
-struct iscsi_segment {
- unsigned char *data;
- unsigned int size;
- unsigned int copied;
- unsigned int total_size;
- unsigned int total_copied;
-
- struct hash_desc *hash;
- unsigned char recv_digest[ISCSI_DIGEST_SIZE];
- unsigned char digest[ISCSI_DIGEST_SIZE];
- unsigned int digest_len;
-
- struct scatterlist *sg;
- void *sg_mapped;
- unsigned int sg_offset;
-
- iscsi_segment_done_fn_t *done;
-};
-
-/* Socket connection recieve helper */
-struct iscsi_tcp_recv {
- struct iscsi_hdr *hdr;
- struct iscsi_segment segment;
-
- /* Allocate buffer for BHS + AHS */
- uint32_t hdr_buf[64];
-
- /* copied and flipped values */
- int datalen;
-};
/* Socket connection send helper */
-struct iscsi_tcp_send {
+struct iscsi_sw_tcp_send {
struct iscsi_hdr *hdr;
struct iscsi_segment segment;
struct iscsi_segment data_segment;
};
-struct iscsi_tcp_conn {
+struct iscsi_sw_tcp_conn {
struct iscsi_conn *iscsi_conn;
struct socket *sock;
- int stop_stage; /* conn_stop() flag: *
- * stop to recover, *
- * stop to terminate */
- /* control data */
- struct iscsi_tcp_recv in; /* TCP receive context */
- struct iscsi_tcp_send out; /* TCP send context */
+ struct iscsi_sw_tcp_send out;
/* old values for socket callbacks */
void (*old_data_ready)(struct sock *, int);
void (*old_state_change)(struct sock *);
@@ -93,41 +53,13 @@ struct iscsi_tcp_conn {
uint32_t sendpage_failures_cnt;
uint32_t discontiguous_hdr_cnt;
- int error;
-
ssize_t (*sendpage)(struct socket *, struct page *, int, size_t, int);
};
-struct iscsi_data_task {
- struct iscsi_data hdr; /* PDU */
- char hdrext[ISCSI_DIGEST_SIZE];/* Header-Digest */
-};
-
-struct iscsi_r2t_info {
- __be32 ttt; /* copied from R2T */
- __be32 exp_statsn; /* copied from R2T */
- uint32_t data_length; /* copied from R2T */
- uint32_t data_offset; /* copied from R2T */
- int sent; /* R2T sequence progress */
- int data_count; /* DATA-Out payload progress */
- int solicit_datasn;
- struct iscsi_data_task dtask; /* Data-Out header buf */
-};
-
-struct iscsi_tcp_task {
- struct iscsi_hdr_buff {
- struct iscsi_cmd cmd_hdr;
- char hdrextbuf[ISCSI_MAX_AHS_SIZE +
+struct iscsi_sw_tcp_hdrbuf {
+ struct iscsi_hdr hdrbuf;
+ char hdrextbuf[ISCSI_MAX_AHS_SIZE +
ISCSI_DIGEST_SIZE];
- } hdr;
-
- int sent;
- uint32_t exp_datasn; /* expected target's R2TSN/DataSN */
- int data_offset;
- struct iscsi_r2t_info *r2t; /* in progress R2T */
- struct iscsi_pool r2tpool;
- struct kfifo *r2tqueue;
- struct iscsi_data_task unsol_dtask; /* Data-Out header buf */
};
-#endif /* ISCSI_H */
+#endif /* ISCSI_SW_TCP_H */