scsi/cxgbi/libcxgbi.c

843 		"csk 0x%p, state %u, flags 0x%lx, conn 0x%p.\n",
1354 	struct iscsi_tcp_conn *tcp_conn = task->conn->dd_data;
1385 	struct iscsi_conn *conn = task->conn;
1386 	struct iscsi_session *sess = conn->session;
1387 	struct iscsi_tcp_conn *tcp_conn = conn->dd_data;
1425 void cxgbi_parse_pdu_itt(struct iscsi_conn *conn, itt_t itt, int *idx, int *age)
1427 	struct iscsi_tcp_conn *tcp_conn = conn->dd_data;
1453 	struct iscsi_conn *conn = csk->user_data;
1455 	if (conn) {
1457 			"csk 0x%p, cid %d.\n", csk, conn->id);
1458 		iscsi_conn_queue_xmit(conn);
1466 static inline int read_pdu_skb(struct iscsi_conn *conn,
1474 	bytes_read = iscsi_tcp_recv_skb(conn, skb, offset, offloaded, &status);
1493 		iscsi_conn_printk(KERN_ERR, conn, "Invalid pdu or skb.");
1508 skb_read_pdu_bhs(struct cxgbi_sock *csk, struct iscsi_conn *conn,
1511 	struct iscsi_tcp_conn *tcp_conn = conn->dd_data;
1515 		"conn 0x%p, skb 0x%p, len %u, flag 0x%lx.\n",
1516 		conn, skb, skb->len, cxgbi_skcb_flags(skb));
1519 		pr_info("conn 0x%p, skb 0x%p, not hdr.\n", conn, skb);
1520 		iscsi_conn_failure(conn, ISCSI_ERR_PROTO);
1524 	if (conn->hdrdgst_en &&
1526 		pr_info("conn 0x%p, skb 0x%p, hcrc.\n", conn, skb);
1527 		iscsi_conn_failure(conn, ISCSI_ERR_HDR_DGST);
1540 		struct iscsi_task *task = iscsi_itt_to_ctask(conn, itt);
1550 	err = read_pdu_skb(conn, skb, 0, 0);
1562 static int skb_read_pdu_data(struct iscsi_conn *conn, struct sk_buff *lskb,
1565 	struct iscsi_tcp_conn *tcp_conn = conn->dd_data;
1570 		"conn 0x%p, skb 0x%p, len %u, flag 0x%lx.\n",
1571 		conn, skb, skb->len, cxgbi_skcb_flags(skb));
1573 	if (conn->datadgst_en &&
1575 		pr_info("conn 0x%p, skb 0x%p, dcrc 0x%lx.\n",
1576 			conn, lskb, cxgbi_skcb_flags(lskb));
1577 		iscsi_conn_failure(conn, ISCSI_ERR_DATA_DGST);
1585 	if (lskb == skb && conn->hdrdgst_en)
1597 	return read_pdu_skb(conn, skb, offset, offloaded);
1629 	struct iscsi_conn *conn = csk->user_data;
1635 		"csk 0x%p, conn 0x%p.\n", csk, conn);
1637 	if (unlikely(!conn || test_bit(ISCSI_CONN_FLAG_SUSPEND_RX, &conn->flags))) {
1639 			"csk 0x%p, conn 0x%p, id %d, conn flags 0x%lx!\n",
1640 			csk, conn, conn ? conn->id : 0xFF,
1641 			conn ? conn->flags : 0xFF);
1664 			err = skb_read_pdu_bhs(csk, conn, skb);
1673 			err = skb_read_pdu_data(conn, skb, skb,
1682 			err = skb_read_pdu_bhs(csk, conn, skb);
1707 				err = skb_read_pdu_data(conn, skb, dskb, 0);
1718 				err = skb_read_pdu_data(conn, skb, skb, 0);
1731 		conn->rxdata_octets += read;
1736 			csk, conn, err, read);
1737 		iscsi_conn_failure(conn, ISCSI_ERR_CONN_FAILED);
1887 	struct iscsi_conn *conn = task->conn;
1888 	struct iscsi_session *session = task->conn->session;
1889 	struct iscsi_tcp_conn *tcp_conn = conn->dd_data;
1897 	u32 max_txdata_len = conn->max_xmit_dlength;
1927 		/* Preserve conn->max_xmit_dlength because it can get updated to
1931 			tdata->max_xmit_dlength = conn->max_xmit_dlength;
1943 			  "conn->max_xmit_dlength %u, "
1946 			  conn->max_xmit_dlength, tdata->max_xmit_dlength);
1970 			conn->max_xmit_dlength = tdata->max_xmit_dlength * num_pdu;
1971 			max_txdata_len = conn->max_xmit_dlength;
2000 				conn->max_xmit_dlength = remaining_data_tosend;
2012 			headroom += conn->max_xmit_dlength;
2050 		  conn->max_xmit_dlength, be32_to_cpu(task->hdr->itt));
2055 	conn->max_xmit_dlength = tdata->max_xmit_dlength;
2067 	struct iscsi_conn *conn = task->conn;
2068 	struct iscsi_session *session = conn->session;
2147 	struct iscsi_conn *conn = task->conn;
2172 	tx_skb_setmode(skb, conn->hdrdgst_en, datalen ? conn->datadgst_en : 0);
2180 			conn->max_xmit_dlength = tdata->max_xmit_dlength;
2204 	/* Restore original value of conn->max_xmit_dlength because
2207 	conn->max_xmit_dlength = tdata->max_xmit_dlength;
2363 	struct iscsi_tcp_conn *tcp_conn = task->conn->dd_data;
2421 		if (task->conn->hdrdgst_en)
2424 		if (datalen && task->conn->datadgst_en)
2427 		task->conn->txdata_octets += pdulen;
2464 	iscsi_conn_printk(KERN_ERR, task->conn, "xmit err %d.\n", err);
2465 	iscsi_conn_failure(task->conn, ISCSI_ERR_XMIT_FAILED);
2508 	struct iscsi_conn *conn = cls_conn->dd_data;
2510 	stats->txdata_octets = conn->txdata_octets;
2511 	stats->rxdata_octets = conn->rxdata_octets;
2512 	stats->scsicmd_pdus = conn->scsicmd_pdus_cnt;
2513 	stats->dataout_pdus = conn->dataout_pdus_cnt;
2514 	stats->scsirsp_pdus = conn->scsirsp_pdus_cnt;
2515 	stats->datain_pdus = conn->datain_pdus_cnt;
2516 	stats->r2t_pdus = conn->r2t_pdus_cnt;
2517 	stats->tmfcmd_pdus = conn->tmfcmd_pdus_cnt;
2518 	stats->tmfrsp_pdus = conn->tmfrsp_pdus_cnt;
2523 	stats->custom[0].value = conn->eh_abort_cnt;
2527 static int cxgbi_conn_max_xmit_dlength(struct iscsi_conn *conn)
2529 	struct iscsi_tcp_conn *tcp_conn = conn->dd_data;
2537 	if (conn->max_xmit_dlength)
2538 		conn->max_xmit_dlength = min(conn->max_xmit_dlength, max);
2540 		conn->max_xmit_dlength = max;
2541 	cxgbi_align_pdu_size(conn->max_xmit_dlength);
2546 static int cxgbi_conn_max_recv_dlength(struct iscsi_conn *conn)
2548 	struct iscsi_tcp_conn *tcp_conn = conn->dd_data;
2554 	if (conn->max_recv_dlength) {
2555 		if (conn->max_recv_dlength > max) {
2557 				conn->max_recv_dlength, max);
2560 		conn->max_recv_dlength = min(conn->max_recv_dlength, max);
2561 		cxgbi_align_pdu_size(conn->max_recv_dlength);
2563 		conn->max_recv_dlength = max;
2571 	struct iscsi_conn *conn = cls_conn->dd_data;
2572 	struct iscsi_tcp_conn *tcp_conn = conn->dd_data;
2584 		if (!err && conn->hdrdgst_en)
2586 							conn->hdrdgst_en,
2587 							conn->datadgst_en);
2591 		if (!err && conn->datadgst_en)
2593 							conn->hdrdgst_en,
2594 							conn->datadgst_en);
2597 		return iscsi_tcp_set_max_r2t(conn, buf);
2601 			err = cxgbi_conn_max_recv_dlength(conn);
2606 			err = cxgbi_conn_max_xmit_dlength(conn);
2647 	struct iscsi_conn *conn;
2655 	conn = cls_conn->dd_data;
2656 	tcp_conn = conn->dd_data;
2658 	cconn->iconn = conn;
2661 		"cid %u(0x%x), cls 0x%p,0x%p, conn 0x%p,0x%p,0x%p.\n",
2662 		cid, cid, cls_session, cls_conn, conn, tcp_conn, cconn);
2672 	struct iscsi_conn *conn = cls_conn->dd_data;
2673 	struct iscsi_tcp_conn *tcp_conn = conn->dd_data;
2701 	/*  calculate the tag idx bits needed for this conn based on cmds_max */
2702 	cconn->task_idx_bits = (__ilog2_u32(conn->session->cmds_max - 1)) + 1;
2705 	csk->user_data = conn;
2711 	cxgbi_conn_max_xmit_dlength(conn);
2712 	cxgbi_conn_max_recv_dlength(conn);