1 /* QLogic qed NIC Driver
2 * Copyright (c) 2015-2017 QLogic Corporation
3 *
4 * This software is available to you under a choice of one of two
5 * licenses. You may choose to be licensed under the terms of the GNU
6 * General Public License (GPL) Version 2, available from the file
7 * COPYING in the main directory of this source tree, or the
8 * OpenIB.org BSD license below:
9 *
10 * Redistribution and use in source and binary forms, with or
11 * without modification, are permitted provided that the following
12 * conditions are met:
13 *
14 * - Redistributions of source code must retain the above
15 * copyright notice, this list of conditions and the following
16 * disclaimer.
17 *
18 * - Redistributions in binary form must reproduce the above
19 * copyright notice, this list of conditions and the following
20 * disclaimer in the documentation and /or other materials
21 * provided with the distribution.
22 *
23 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
24 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
25 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
26 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
27 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
28 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
29 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
30 * SOFTWARE.
31 */
32
33 #ifndef _QED_ISCSI_H
34 #define _QED_ISCSI_H
35 #include <linux/types.h>
36 #include <linux/list.h>
37 #include <linux/slab.h>
38 #include <linux/spinlock.h>
39 #include <linux/qed/tcp_common.h>
40 #include <linux/qed/qed_iscsi_if.h>
41 #include <linux/qed/qed_chain.h>
42 #include "qed.h"
43 #include "qed_hsi.h"
44 #include "qed_mcp.h"
45 #include "qed_sp.h"
46
47 struct qed_iscsi_info {
48 spinlock_t lock; /* Connection resources. */
49 struct list_head free_list;
50 u16 max_num_outstanding_tasks;
51 void *event_context;
52 iscsi_event_cb_t event_cb;
53 };
54
55 #ifdef CONFIG_QED_LL2
56 extern const struct qed_ll2_ops qed_ll2_ops_pass;
57 #endif
58
59 #if IS_ENABLED(CONFIG_QED_ISCSI)
60 int qed_iscsi_alloc(struct qed_hwfn *p_hwfn);
61
62 void qed_iscsi_setup(struct qed_hwfn *p_hwfn);
63
64 void qed_iscsi_free(struct qed_hwfn *p_hwfn);
65
66 /**
67 * @brief - Fills provided statistics struct with statistics.
68 *
69 * @param cdev
70 * @param stats - points to struct that will be filled with statistics.
71 */
72 void qed_get_protocol_stats_iscsi(struct qed_dev *cdev,
73 struct qed_mcp_iscsi_stats *stats);
74 #else /* IS_ENABLED(CONFIG_QED_ISCSI) */
75 static inline int qed_iscsi_alloc(struct qed_hwfn *p_hwfn)
76 {
77 return -EINVAL;
78 }
79
80 static inline void qed_iscsi_setup(struct qed_hwfn *p_hwfn) {}
81
82 static inline void qed_iscsi_free(struct qed_hwfn *p_hwfn) {}
83
84 static inline void
85 qed_get_protocol_stats_iscsi(struct qed_dev *cdev,
86 struct qed_mcp_iscsi_stats *stats) {}
87 #endif /* IS_ENABLED(CONFIG_QED_ISCSI) */
88
89 #endif