X-Git-Url: http://pilppa.org/gitweb/?a=blobdiff_plain;f=drivers%2Fscsi%2Fiscsi_tcp.c;h=57ce2251abc818a31a6db047666306d05fd5d785;hb=29a09a7b138b1708de3d98a92fddcc18268084aa;hp=a21455d0274cb5d634a40baf768726ff4daf1472;hpb=644b55ce889edd37d6406df26e2d96d7a7390749;p=linux-2.6-omap-h63xx.git

diff --git a/drivers/scsi/iscsi_tcp.c b/drivers/scsi/iscsi_tcp.c
index a21455d0274..57ce2251abc 100644
--- a/drivers/scsi/iscsi_tcp.c
+++ b/drivers/scsi/iscsi_tcp.c
@@ -70,9 +70,7 @@ module_param_named(max_lun, iscsi_max_lun, uint, S_IRUGO);
 static inline void
 iscsi_buf_init_iov(struct iscsi_buf *ibuf, char *vbuf, int size)
 {
-	ibuf->sg.page = virt_to_page(vbuf);
-	ibuf->sg.offset = offset_in_page(vbuf);
-	ibuf->sg.length = size;
+	sg_init_one(&ibuf->sg, vbuf, size);
 	ibuf->sent = 0;
 	ibuf->use_sendmsg = 1;
 }
@@ -80,13 +78,12 @@ iscsi_buf_init_iov(struct iscsi_buf *ibuf, char *vbuf, int size)
 static inline void
 iscsi_buf_init_sg(struct iscsi_buf *ibuf, struct scatterlist *sg)
 {
-	ibuf->sg.page = sg->page;
-	ibuf->sg.offset = sg->offset;
-	ibuf->sg.length = sg->length;
+	sg_init_table(&ibuf->sg, 1);
+	sg_set_page(&ibuf->sg, sg_page(sg), sg->length, sg->offset);
 	/*
 	 * Fastpath: sg element fits into single page
 	 */
-	if (sg->length + sg->offset <= PAGE_SIZE && !PageSlab(sg->page))
+	if (sg->length + sg->offset <= PAGE_SIZE && !PageSlab(sg_page(sg)))
 		ibuf->use_sendmsg = 0;
 	else
 		ibuf->use_sendmsg = 1;
@@ -200,7 +197,7 @@ iscsi_tcp_cleanup_ctask(struct iscsi_conn *conn, struct iscsi_cmd_task *ctask)
 	if (unlikely(!sc))
 		return;
 
-	tcp_ctask->xmstate = XMSTATE_IDLE;
+	tcp_ctask->xmstate = XMSTATE_VALUE_IDLE;
 	tcp_ctask->r2t = NULL;
 }
 
@@ -412,7 +409,7 @@ iscsi_r2t_rsp(struct iscsi_conn *conn, struct iscsi_cmd_task *ctask)
 
 	tcp_ctask->exp_datasn = r2tsn + 1;
 	__kfifo_put(tcp_ctask->r2tqueue, (void*)&r2t, sizeof(void*));
-	tcp_ctask->xmstate |= XMSTATE_SOL_HDR_INIT;
+	set_bit(XMSTATE_BIT_SOL_HDR_INIT, &tcp_ctask->xmstate);
 	list_move_tail(&ctask->running, &conn->xmitqueue);
 
 	scsi_queue_work(session->host, &conn->xmitwork);
@@ -677,9 +674,8 @@ partial_sg_digest_update(struct hash_desc *desc, struct scatterlist *sg,
 {
 	struct scatterlist temp;
 
-	memcpy(&temp, sg, sizeof(struct scatterlist));
-	temp.offset = offset;
-	temp.length = length;
+	sg_init_table(&temp, 1);
+	sg_set_page(&temp, sg_page(sg), length, offset);
 	crypto_hash_update(desc, &temp, length);
 }
 
@@ -716,7 +712,7 @@ static int iscsi_scsi_data_in(struct iscsi_conn *conn)
 	for (i = tcp_ctask->sg_count; i < scsi_sg_count(sc); i++) {
 		char *dest;
 
-		dest = kmap_atomic(sg[i].page, KM_SOFTIRQ0);
+		dest = kmap_atomic(sg_page(&sg[i]), KM_SOFTIRQ0);
 		rc = iscsi_ctask_copy(tcp_conn, ctask, dest + sg[i].offset,
 				      sg[i].length, offset);
 		kunmap_atomic(dest, KM_SOFTIRQ0);
@@ -1103,9 +1099,9 @@ iscsi_send(struct iscsi_conn *conn, struct iscsi_buf *buf, int size, int flags)
 	 * slab case.
 	 */
 	if (buf->use_sendmsg)
-		res = sock_no_sendpage(sk, buf->sg.page, offset, size, flags);
+		res = sock_no_sendpage(sk, sg_page(&buf->sg), offset, size, flags);
 	else
-		res = tcp_conn->sendpage(sk, buf->sg.page, offset, size, flags);
+		res = tcp_conn->sendpage(sk, sg_page(&buf->sg), offset, size, flags);
 
 	if (res >= 0) {
 		conn->txdata_octets += res;
@@ -1258,7 +1254,7 @@ static void iscsi_set_padding(struct iscsi_tcp_cmd_task *tcp_ctask,
 
 	tcp_ctask->pad_count = ISCSI_PAD_LEN - tcp_ctask->pad_count;
 	debug_scsi("write padding %d bytes\n", tcp_ctask->pad_count);
-	tcp_ctask->xmstate |= XMSTATE_W_PAD;
+	set_bit(XMSTATE_BIT_W_PAD, &tcp_ctask->xmstate);
 }
 
 /**
@@ -1273,7 +1269,7 @@ iscsi_tcp_cmd_init(struct iscsi_cmd_task *ctask)
 	struct iscsi_tcp_cmd_task *tcp_ctask = ctask->dd_data;
 
 	BUG_ON(__kfifo_len(tcp_ctask->r2tqueue));
-	tcp_ctask->xmstate = XMSTATE_CMD_HDR_INIT;
+	tcp_ctask->xmstate = 1 << XMSTATE_BIT_CMD_HDR_INIT;
 }
 
 /**
@@ -1287,10 +1283,10 @@ iscsi_tcp_cmd_init(struct iscsi_cmd_task *ctask)
  *	xmit.
  *
  *	Management xmit state machine consists of these states:
- *		XMSTATE_IMM_HDR_INIT	- calculate digest of PDU Header
- *		XMSTATE_IMM_HDR 	- PDU Header xmit in progress
- *		XMSTATE_IMM_DATA 	- PDU Data xmit in progress
- *		XMSTATE_IDLE		- management PDU is done
+ *		XMSTATE_BIT_IMM_HDR_INIT - calculate digest of PDU Header
+ *		XMSTATE_BIT_IMM_HDR      - PDU Header xmit in progress
+ *		XMSTATE_BIT_IMM_DATA     - PDU Data xmit in progress
+ *		XMSTATE_VALUE_IDLE       - management PDU is done
  **/
 static int
 iscsi_tcp_mtask_xmit(struct iscsi_conn *conn, struct iscsi_mgmt_task *mtask)
@@ -1301,12 +1297,12 @@ iscsi_tcp_mtask_xmit(struct iscsi_conn *conn, struct iscsi_mgmt_task *mtask)
 	debug_scsi("mtask deq [cid %d state %x itt 0x%x]\n",
 		conn->id, tcp_mtask->xmstate, mtask->itt);
 
-	if (tcp_mtask->xmstate & XMSTATE_IMM_HDR_INIT) {
+	if (test_bit(XMSTATE_BIT_IMM_HDR_INIT, &tcp_mtask->xmstate)) {
 		iscsi_buf_init_iov(&tcp_mtask->headbuf, (char*)mtask->hdr,
 				   sizeof(struct iscsi_hdr));
 
 		if (mtask->data_count) {
-			tcp_mtask->xmstate |= XMSTATE_IMM_DATA;
+			set_bit(XMSTATE_BIT_IMM_DATA, &tcp_mtask->xmstate);
 			iscsi_buf_init_iov(&tcp_mtask->sendbuf,
 					   (char*)mtask->data,
 					   mtask->data_count);
@@ -1319,21 +1315,20 @@ iscsi_tcp_mtask_xmit(struct iscsi_conn *conn, struct iscsi_mgmt_task *mtask)
 					(u8*)tcp_mtask->hdrext);
 
 		tcp_mtask->sent = 0;
-		tcp_mtask->xmstate &= ~XMSTATE_IMM_HDR_INIT;
-		tcp_mtask->xmstate |= XMSTATE_IMM_HDR;
+		clear_bit(XMSTATE_BIT_IMM_HDR_INIT, &tcp_mtask->xmstate);
+		set_bit(XMSTATE_BIT_IMM_HDR, &tcp_mtask->xmstate);
 	}
 
-	if (tcp_mtask->xmstate & XMSTATE_IMM_HDR) {
+	if (test_bit(XMSTATE_BIT_IMM_HDR, &tcp_mtask->xmstate)) {
 		rc = iscsi_sendhdr(conn, &tcp_mtask->headbuf,
 				   mtask->data_count);
 		if (rc)
 			return rc;
-		tcp_mtask->xmstate &= ~XMSTATE_IMM_HDR;
+		clear_bit(XMSTATE_BIT_IMM_HDR, &tcp_mtask->xmstate);
 	}
 
-	if (tcp_mtask->xmstate & XMSTATE_IMM_DATA) {
+	if (test_and_clear_bit(XMSTATE_BIT_IMM_DATA, &tcp_mtask->xmstate)) {
 		BUG_ON(!mtask->data_count);
-		tcp_mtask->xmstate &= ~XMSTATE_IMM_DATA;
 		/* FIXME: implement.
 		 * Virtual buffer could be spreaded across multiple pages...
 		 */
@@ -1343,13 +1338,13 @@ iscsi_tcp_mtask_xmit(struct iscsi_conn *conn, struct iscsi_mgmt_task *mtask)
 			rc = iscsi_sendpage(conn, &tcp_mtask->sendbuf,
 					&mtask->data_count, &tcp_mtask->sent);
 			if (rc) {
-				tcp_mtask->xmstate |= XMSTATE_IMM_DATA;
+				set_bit(XMSTATE_BIT_IMM_DATA, &tcp_mtask->xmstate);
 				return rc;
 			}
 		} while (mtask->data_count);
 	}
 
-	BUG_ON(tcp_mtask->xmstate != XMSTATE_IDLE);
+	BUG_ON(tcp_mtask->xmstate != XMSTATE_VALUE_IDLE);
 	if (mtask->hdr->itt == RESERVED_ITT) {
 		struct iscsi_session *session = conn->session;
 
@@ -1369,7 +1364,7 @@ iscsi_send_cmd_hdr(struct iscsi_conn *conn, struct iscsi_cmd_task *ctask)
 	struct iscsi_tcp_cmd_task *tcp_ctask = ctask->dd_data;
 	int rc = 0;
 
-	if (tcp_ctask->xmstate & XMSTATE_CMD_HDR_INIT) {
+	if (test_bit(XMSTATE_BIT_CMD_HDR_INIT, &tcp_ctask->xmstate)) {
 		tcp_ctask->sent = 0;
 		tcp_ctask->sg_count = 0;
 		tcp_ctask->exp_datasn = 0;
@@ -1394,21 +1389,21 @@ iscsi_send_cmd_hdr(struct iscsi_conn *conn, struct iscsi_cmd_task *ctask)
 		if (conn->hdrdgst_en)
 			iscsi_hdr_digest(conn, &tcp_ctask->headbuf,
 					 (u8*)tcp_ctask->hdrext);
-		tcp_ctask->xmstate &= ~XMSTATE_CMD_HDR_INIT;
-		tcp_ctask->xmstate |= XMSTATE_CMD_HDR_XMIT;
+		clear_bit(XMSTATE_BIT_CMD_HDR_INIT, &tcp_ctask->xmstate);
+		set_bit(XMSTATE_BIT_CMD_HDR_XMIT, &tcp_ctask->xmstate);
 	}
 
-	if (tcp_ctask->xmstate & XMSTATE_CMD_HDR_XMIT) {
+	if (test_bit(XMSTATE_BIT_CMD_HDR_XMIT, &tcp_ctask->xmstate)) {
 		rc = iscsi_sendhdr(conn, &tcp_ctask->headbuf, ctask->imm_count);
 		if (rc)
 			return rc;
-		tcp_ctask->xmstate &= ~XMSTATE_CMD_HDR_XMIT;
+		clear_bit(XMSTATE_BIT_CMD_HDR_XMIT, &tcp_ctask->xmstate);
 
 		if (sc->sc_data_direction != DMA_TO_DEVICE)
 			return 0;
 
 		if (ctask->imm_count) {
-			tcp_ctask->xmstate |= XMSTATE_IMM_DATA;
+			set_bit(XMSTATE_BIT_IMM_DATA, &tcp_ctask->xmstate);
 			iscsi_set_padding(tcp_ctask, ctask->imm_count);
 
 			if (ctask->conn->datadgst_en) {
@@ -1418,9 +1413,10 @@ iscsi_send_cmd_hdr(struct iscsi_conn *conn, struct iscsi_cmd_task *ctask)
 			}
 		}
 
-		if (ctask->unsol_count)
-			tcp_ctask->xmstate |=
-					XMSTATE_UNS_HDR | XMSTATE_UNS_INIT;
+		if (ctask->unsol_count) {
+			set_bit(XMSTATE_BIT_UNS_HDR, &tcp_ctask->xmstate);
+			set_bit(XMSTATE_BIT_UNS_INIT, &tcp_ctask->xmstate);
+		}
 	}
 	return rc;
 }
@@ -1432,25 +1428,25 @@ iscsi_send_padding(struct iscsi_conn *conn, struct iscsi_cmd_task *ctask)
 	struct iscsi_tcp_conn *tcp_conn = conn->dd_data;
 	int sent = 0, rc;
 
-	if (tcp_ctask->xmstate & XMSTATE_W_PAD) {
+	if (test_bit(XMSTATE_BIT_W_PAD, &tcp_ctask->xmstate)) {
 		iscsi_buf_init_iov(&tcp_ctask->sendbuf, (char*)&tcp_ctask->pad,
 				   tcp_ctask->pad_count);
 		if (conn->datadgst_en)
 			crypto_hash_update(&tcp_conn->tx_hash,
 					   &tcp_ctask->sendbuf.sg,
 					   tcp_ctask->sendbuf.sg.length);
-	} else if (!(tcp_ctask->xmstate & XMSTATE_W_RESEND_PAD))
+	} else if (!test_bit(XMSTATE_BIT_W_RESEND_PAD, &tcp_ctask->xmstate))
 		return 0;
 
-	tcp_ctask->xmstate &= ~XMSTATE_W_PAD;
-	tcp_ctask->xmstate &= ~XMSTATE_W_RESEND_PAD;
+	clear_bit(XMSTATE_BIT_W_PAD, &tcp_ctask->xmstate);
+	clear_bit(XMSTATE_BIT_W_RESEND_PAD, &tcp_ctask->xmstate);
 	debug_scsi("sending %d pad bytes for itt 0x%x\n",
 		   tcp_ctask->pad_count, ctask->itt);
 	rc = iscsi_sendpage(conn, &tcp_ctask->sendbuf, &tcp_ctask->pad_count,
 			   &sent);
 	if (rc) {
 		debug_scsi("padding send failed %d\n", rc);
-		tcp_ctask->xmstate |= XMSTATE_W_RESEND_PAD;
+		set_bit(XMSTATE_BIT_W_RESEND_PAD, &tcp_ctask->xmstate);
 	}
 	return rc;
 }
@@ -1469,11 +1465,11 @@ iscsi_send_digest(struct iscsi_conn *conn, struct iscsi_cmd_task *ctask,
 	tcp_ctask = ctask->dd_data;
 	tcp_conn = conn->dd_data;
 
-	if (!(tcp_ctask->xmstate & XMSTATE_W_RESEND_DATA_DIGEST)) {
+	if (!test_bit(XMSTATE_BIT_W_RESEND_DATA_DIGEST, &tcp_ctask->xmstate)) {
 		crypto_hash_final(&tcp_conn->tx_hash, (u8*)digest);
 		iscsi_buf_init_iov(buf, (char*)digest, 4);
 	}
-	tcp_ctask->xmstate &= ~XMSTATE_W_RESEND_DATA_DIGEST;
+	clear_bit(XMSTATE_BIT_W_RESEND_DATA_DIGEST, &tcp_ctask->xmstate);
 
 	rc = iscsi_sendpage(conn, buf, &tcp_ctask->digest_count, &sent);
 	if (!rc)
@@ -1482,7 +1478,7 @@ iscsi_send_digest(struct iscsi_conn *conn, struct iscsi_cmd_task *ctask,
 	else {
 		debug_scsi("sending digest 0x%x failed for itt 0x%x!\n",
 			  *digest, ctask->itt);
-		tcp_ctask->xmstate |= XMSTATE_W_RESEND_DATA_DIGEST;
+		set_bit(XMSTATE_BIT_W_RESEND_DATA_DIGEST, &tcp_ctask->xmstate);
 	}
 	return rc;
 }
@@ -1530,8 +1526,8 @@ iscsi_send_unsol_hdr(struct iscsi_conn *conn, struct iscsi_cmd_task *ctask)
 	struct iscsi_data_task *dtask;
 	int rc;
 
-	tcp_ctask->xmstate |= XMSTATE_UNS_DATA;
-	if (tcp_ctask->xmstate & XMSTATE_UNS_INIT) {
+	set_bit(XMSTATE_BIT_UNS_DATA, &tcp_ctask->xmstate);
+	if (test_bit(XMSTATE_BIT_UNS_INIT, &tcp_ctask->xmstate)) {
 		dtask = &tcp_ctask->unsol_dtask;
 
 		iscsi_prep_unsolicit_data_pdu(ctask, &dtask->hdr);
@@ -1541,14 +1537,14 @@ iscsi_send_unsol_hdr(struct iscsi_conn *conn, struct iscsi_cmd_task *ctask)
 			iscsi_hdr_digest(conn, &tcp_ctask->headbuf,
 					(u8*)dtask->hdrext);
 
-		tcp_ctask->xmstate &= ~XMSTATE_UNS_INIT;
+		clear_bit(XMSTATE_BIT_UNS_INIT, &tcp_ctask->xmstate);
 		iscsi_set_padding(tcp_ctask, ctask->data_count);
 	}
 
 	rc = iscsi_sendhdr(conn, &tcp_ctask->headbuf, ctask->data_count);
 	if (rc) {
-		tcp_ctask->xmstate &= ~XMSTATE_UNS_DATA;
-		tcp_ctask->xmstate |= XMSTATE_UNS_HDR;
+		clear_bit(XMSTATE_BIT_UNS_DATA, &tcp_ctask->xmstate);
+		set_bit(XMSTATE_BIT_UNS_HDR, &tcp_ctask->xmstate);
 		return rc;
 	}
 
@@ -1569,16 +1565,15 @@ iscsi_send_unsol_pdu(struct iscsi_conn *conn, struct iscsi_cmd_task *ctask)
 	struct iscsi_tcp_cmd_task *tcp_ctask = ctask->dd_data;
 	int rc;
 
-	if (tcp_ctask->xmstate & XMSTATE_UNS_HDR) {
+	if (test_and_clear_bit(XMSTATE_BIT_UNS_HDR, &tcp_ctask->xmstate)) {
 		BUG_ON(!ctask->unsol_count);
-		tcp_ctask->xmstate &= ~XMSTATE_UNS_HDR;
 send_hdr:
 		rc = iscsi_send_unsol_hdr(conn, ctask);
 		if (rc)
 			return rc;
 	}
 
-	if (tcp_ctask->xmstate & XMSTATE_UNS_DATA) {
+	if (test_bit(XMSTATE_BIT_UNS_DATA, &tcp_ctask->xmstate)) {
 		struct iscsi_data_task *dtask = &tcp_ctask->unsol_dtask;
 		int start = tcp_ctask->sent;
 
@@ -1588,14 +1583,14 @@ send_hdr:
 		ctask->unsol_count -= tcp_ctask->sent - start;
 		if (rc)
 			return rc;
-		tcp_ctask->xmstate &= ~XMSTATE_UNS_DATA;
+		clear_bit(XMSTATE_BIT_UNS_DATA, &tcp_ctask->xmstate);
 		/*
 		 * Done with the Data-Out. Next, check if we need
 		 * to send another unsolicited Data-Out.
 		 */
 		if (ctask->unsol_count) {
 			debug_scsi("sending more uns\n");
-			tcp_ctask->xmstate |= XMSTATE_UNS_INIT;
+			set_bit(XMSTATE_BIT_UNS_INIT, &tcp_ctask->xmstate);
 			goto send_hdr;
 		}
 	}
@@ -1611,7 +1606,7 @@ static int iscsi_send_sol_pdu(struct iscsi_conn *conn,
 	struct iscsi_data_task *dtask;
 	int left, rc;
 
-	if (tcp_ctask->xmstate & XMSTATE_SOL_HDR_INIT) {
+	if (test_bit(XMSTATE_BIT_SOL_HDR_INIT, &tcp_ctask->xmstate)) {
 		if (!tcp_ctask->r2t) {
 			spin_lock_bh(&session->lock);
 			__kfifo_get(tcp_ctask->r2tqueue, (void*)&tcp_ctask->r2t,
@@ -1625,19 +1620,19 @@ send_hdr:
 		if (conn->hdrdgst_en)
 			iscsi_hdr_digest(conn, &r2t->headbuf,
 					(u8*)dtask->hdrext);
-		tcp_ctask->xmstate &= ~XMSTATE_SOL_HDR_INIT;
-		tcp_ctask->xmstate |= XMSTATE_SOL_HDR;
+		clear_bit(XMSTATE_BIT_SOL_HDR_INIT, &tcp_ctask->xmstate);
+		set_bit(XMSTATE_BIT_SOL_HDR, &tcp_ctask->xmstate);
 	}
 
-	if (tcp_ctask->xmstate & XMSTATE_SOL_HDR) {
+	if (test_bit(XMSTATE_BIT_SOL_HDR, &tcp_ctask->xmstate)) {
 		r2t = tcp_ctask->r2t;
 		dtask = &r2t->dtask;
 
 		rc = iscsi_sendhdr(conn, &r2t->headbuf, r2t->data_count);
 		if (rc)
 			return rc;
-		tcp_ctask->xmstate &= ~XMSTATE_SOL_HDR;
-		tcp_ctask->xmstate |= XMSTATE_SOL_DATA;
+		clear_bit(XMSTATE_BIT_SOL_HDR, &tcp_ctask->xmstate);
+		set_bit(XMSTATE_BIT_SOL_DATA, &tcp_ctask->xmstate);
 
 		if (conn->datadgst_en) {
 			iscsi_data_digest_init(conn->dd_data, tcp_ctask);
@@ -1650,7 +1645,7 @@ send_hdr:
 			r2t->sent);
 	}
 
-	if (tcp_ctask->xmstate & XMSTATE_SOL_DATA) {
+	if (test_bit(XMSTATE_BIT_SOL_DATA, &tcp_ctask->xmstate)) {
 		r2t = tcp_ctask->r2t;
 		dtask = &r2t->dtask;
 
@@ -1659,7 +1654,7 @@ send_hdr:
 				     &dtask->digestbuf, &dtask->digest);
 		if (rc)
 			return rc;
-		tcp_ctask->xmstate &= ~XMSTATE_SOL_DATA;
+		clear_bit(XMSTATE_BIT_SOL_DATA, &tcp_ctask->xmstate);
 
 		/*
 		 * Done with this Data-Out. Next, check if we have
@@ -1704,32 +1699,32 @@ send_hdr:
  *	xmit stages.
  *
  *iscsi_send_cmd_hdr()
- *	XMSTATE_CMD_HDR_INIT - prepare Header and Data buffers Calculate
- *	                       Header Digest
- *	XMSTATE_CMD_HDR_XMIT - Transmit header in progress
+ *	XMSTATE_BIT_CMD_HDR_INIT - prepare Header and Data buffers Calculate
+ *	                           Header Digest
+ *	XMSTATE_BIT_CMD_HDR_XMIT - Transmit header in progress
  *
  *iscsi_send_padding
- *	XMSTATE_W_PAD        - Prepare and send pading
- *	XMSTATE_W_RESEND_PAD - retry send pading
+ *	XMSTATE_BIT_W_PAD        - Prepare and send pading
+ *	XMSTATE_BIT_W_RESEND_PAD - retry send pading
  *
  *iscsi_send_digest
- *	XMSTATE_W_RESEND_DATA_DIGEST - Finalize and send Data Digest
- *	XMSTATE_W_RESEND_DATA_DIGEST - retry sending digest
+ *	XMSTATE_BIT_W_RESEND_DATA_DIGEST - Finalize and send Data Digest
+ *	XMSTATE_BIT_W_RESEND_DATA_DIGEST - retry sending digest
  *
  *iscsi_send_unsol_hdr
- *	XMSTATE_UNS_INIT     - prepare un-solicit data header and digest
- *	XMSTATE_UNS_HDR      - send un-solicit header
+ *	XMSTATE_BIT_UNS_INIT     - prepare un-solicit data header and digest
+ *	XMSTATE_BIT_UNS_HDR      - send un-solicit header
  *
  *iscsi_send_unsol_pdu
- *	XMSTATE_UNS_DATA     - send un-solicit data in progress
+ *	XMSTATE_BIT_UNS_DATA     - send un-solicit data in progress
  *
  *iscsi_send_sol_pdu
- *	XMSTATE_SOL_HDR_INIT - solicit data header and digest initialize
- *	XMSTATE_SOL_HDR      - send solicit header
- *	XMSTATE_SOL_DATA     - send solicit data
+ *	XMSTATE_BIT_SOL_HDR_INIT - solicit data header and digest initialize
+ *	XMSTATE_BIT_SOL_HDR      - send solicit header
+ *	XMSTATE_BIT_SOL_DATA     - send solicit data
  *
  *iscsi_tcp_ctask_xmit
- *	XMSTATE_IMM_DATA     - xmit managment data (??)
+ *	XMSTATE_BIT_IMM_DATA     - xmit managment data (??)
  **/
 static int
 iscsi_tcp_ctask_xmit(struct iscsi_conn *conn, struct iscsi_cmd_task *ctask)
@@ -1746,13 +1741,13 @@ iscsi_tcp_ctask_xmit(struct iscsi_conn *conn, struct iscsi_cmd_task *ctask)
 	if (ctask->sc->sc_data_direction != DMA_TO_DEVICE)
 		return 0;
 
-	if (tcp_ctask->xmstate & XMSTATE_IMM_DATA) {
+	if (test_bit(XMSTATE_BIT_IMM_DATA, &tcp_ctask->xmstate)) {
 		rc = iscsi_send_data(ctask, &tcp_ctask->sendbuf, &tcp_ctask->sg,
 				     &tcp_ctask->sent, &ctask->imm_count,
 				     &tcp_ctask->immbuf, &tcp_ctask->immdigest);
 		if (rc)
 			return rc;
-		tcp_ctask->xmstate &= ~XMSTATE_IMM_DATA;
+		clear_bit(XMSTATE_BIT_IMM_DATA, &tcp_ctask->xmstate);
 	}
 
 	rc = iscsi_send_unsol_pdu(conn, ctask);
@@ -1985,7 +1980,7 @@ static void
 iscsi_tcp_mgmt_init(struct iscsi_conn *conn, struct iscsi_mgmt_task *mtask)
 {
 	struct iscsi_tcp_mgmt_task *tcp_mtask = mtask->dd_data;
-	tcp_mtask->xmstate = XMSTATE_IMM_HDR_INIT;
+	tcp_mtask->xmstate = 1 << XMSTATE_BIT_IMM_HDR_INIT;
 }
 
 static int