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 90