1 /* SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause) */ 2 /* QLogic qed NIC Driver 3 * Copyright (c) 2015-2017 QLogic Corporation 4 * Copyright (c) 2019-2020 Marvell International Ltd. 5 */ 6 7 #ifndef _QED_ISCSI_H 8 #define _QED_ISCSI_H 9 #include <linux/types.h> 10 #include <linux/list.h> 11 #include <linux/slab.h> 12 #include <linux/spinlock.h> 13 #include <linux/qed/tcp_common.h> 14 #include <linux/qed/qed_iscsi_if.h> 15 #include <linux/qed/qed_chain.h> 16 #include "qed.h" 17 #include "qed_hsi.h" 18 #include "qed_mcp.h" 19 #include "qed_sp.h" 20 21 struct qed_iscsi_info { 22 spinlock_t lock; /* Connection resources. */ 23 struct list_head free_list; 24 u16 max_num_outstanding_tasks; 25 void *event_context; 26 iscsi_event_cb_t event_cb; 27 }; 28 29 #if IS_ENABLED(CONFIG_QED_ISCSI) 30 int qed_iscsi_alloc(struct qed_hwfn *p_hwfn); 31 32 void qed_iscsi_setup(struct qed_hwfn *p_hwfn); 33 34 void qed_iscsi_free(struct qed_hwfn *p_hwfn); 35 36 /** 37 * qed_get_protocol_stats_iscsi(): Fills provided statistics 38 * struct with statistics. 39 * 40 * @cdev: Qed dev pointer. 41 * @stats: Points to struct that will be filled with statistics. 42 * @is_atomic: Hint from the caller - if the func can sleep or not. 43 * 44 * Context: The function should not sleep in case is_atomic == true. 45 * Return: Void. 46 */ 47 void qed_get_protocol_stats_iscsi(struct qed_dev *cdev, 48 struct qed_mcp_iscsi_stats *stats, 49 bool is_atomic); 50 #else /* IS_ENABLED(CONFIG_QED_ISCSI) */ qed_iscsi_alloc(struct qed_hwfn * p_hwfn)51static inline int qed_iscsi_alloc(struct qed_hwfn *p_hwfn) 52 { 53 return -EINVAL; 54 } 55 qed_iscsi_setup(struct qed_hwfn * p_hwfn)56static inline void qed_iscsi_setup(struct qed_hwfn *p_hwfn) {} 57 qed_iscsi_free(struct qed_hwfn * p_hwfn)58static inline void qed_iscsi_free(struct qed_hwfn *p_hwfn) {} 59 60 static inline void qed_get_protocol_stats_iscsi(struct qed_dev * cdev,struct qed_mcp_iscsi_stats * stats,bool is_atomic)61qed_get_protocol_stats_iscsi(struct qed_dev *cdev, 62 struct qed_mcp_iscsi_stats *stats, 63 bool is_atomic) {} 64 #endif /* IS_ENABLED(CONFIG_QED_ISCSI) */ 65 66 #endif 67