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 */ 5 6 #ifndef _QED_OOO_H 7 #define _QED_OOO_H 8 #include <linux/types.h> 9 #include <linux/list.h> 10 #include <linux/slab.h> 11 #include "qed.h" 12 13 #define QED_MAX_NUM_ISLES 256 14 #define QED_MAX_NUM_OOO_HISTORY_ENTRIES 512 15 16 #define QED_OOO_LEFT_BUF 0 17 #define QED_OOO_RIGHT_BUF 1 18 19 struct qed_ooo_buffer { 20 struct list_head list_entry; 21 void *rx_buffer_virt_addr; 22 dma_addr_t rx_buffer_phys_addr; 23 u32 rx_buffer_size; 24 u16 packet_length; 25 u16 parse_flags; 26 u16 vlan; 27 u8 placement_offset; 28 }; 29 30 struct qed_ooo_isle { 31 struct list_head list_entry; 32 struct list_head buffers_list; 33 }; 34 35 struct qed_ooo_archipelago { 36 struct list_head isles_list; 37 }; 38 39 struct qed_ooo_history { 40 struct ooo_opaque *p_cqes; 41 u32 head_idx; 42 u32 num_of_cqes; 43 }; 44 45 struct qed_ooo_info { 46 struct list_head free_buffers_list; 47 struct list_head ready_buffers_list; 48 struct list_head free_isles_list; 49 struct qed_ooo_archipelago *p_archipelagos_mem; 50 struct qed_ooo_isle *p_isles_mem; 51 struct qed_ooo_history ooo_history; 52 u32 cur_isles_number; 53 u32 max_isles_number; 54 u32 gen_isles_number; 55 u16 max_num_archipelagos; 56 u16 cid_base; 57 }; 58 59 #if IS_ENABLED(CONFIG_QED_OOO) 60 void qed_ooo_save_history_entry(struct qed_hwfn *p_hwfn, 61 struct qed_ooo_info *p_ooo_info, 62 struct ooo_opaque *p_cqe); 63 64 int qed_ooo_alloc(struct qed_hwfn *p_hwfn); 65 66 void qed_ooo_setup(struct qed_hwfn *p_hwfn); 67 68 void qed_ooo_free(struct qed_hwfn *p_hwfn); 69 70 void qed_ooo_release_connection_isles(struct qed_hwfn *p_hwfn, 71 struct qed_ooo_info *p_ooo_info, 72 u32 cid); 73 74 void qed_ooo_release_all_isles(struct qed_hwfn *p_hwfn, 75 struct qed_ooo_info *p_ooo_info); 76 77 void qed_ooo_put_free_buffer(struct qed_hwfn *p_hwfn, 78 struct qed_ooo_info *p_ooo_info, 79 struct qed_ooo_buffer *p_buffer); 80 81 struct qed_ooo_buffer * 82 qed_ooo_get_free_buffer(struct qed_hwfn *p_hwfn, 83 struct qed_ooo_info *p_ooo_info); 84 85 void qed_ooo_put_ready_buffer(struct qed_hwfn *p_hwfn, 86 struct qed_ooo_info *p_ooo_info, 87 struct qed_ooo_buffer *p_buffer, u8 on_tail); 88 89 struct qed_ooo_buffer * 90 qed_ooo_get_ready_buffer(struct qed_hwfn *p_hwfn, 91 struct qed_ooo_info *p_ooo_info); 92 93 void qed_ooo_delete_isles(struct qed_hwfn *p_hwfn, 94 struct qed_ooo_info *p_ooo_info, 95 u32 cid, u8 drop_isle, u8 drop_size); 96 97 void qed_ooo_add_new_isle(struct qed_hwfn *p_hwfn, 98 struct qed_ooo_info *p_ooo_info, 99 u32 cid, 100 u8 ooo_isle, struct qed_ooo_buffer *p_buffer); 101 102 void qed_ooo_add_new_buffer(struct qed_hwfn *p_hwfn, 103 struct qed_ooo_info *p_ooo_info, 104 u32 cid, 105 u8 ooo_isle, 106 struct qed_ooo_buffer *p_buffer, u8 buffer_side); 107 108 void qed_ooo_join_isles(struct qed_hwfn *p_hwfn, 109 struct qed_ooo_info *p_ooo_info, u32 cid, 110 u8 left_isle); 111 #else /* IS_ENABLED(CONFIG_QED_ISCSI) */ 112 static inline void qed_ooo_save_history_entry(struct qed_hwfn *p_hwfn, 113 struct qed_ooo_info *p_ooo_info, 114 struct ooo_opaque *p_cqe) {} 115 116 static inline int qed_ooo_alloc(struct qed_hwfn *p_hwfn) 117 { 118 return -EINVAL; 119 } 120 121 static inline void qed_ooo_setup(struct qed_hwfn *p_hwfn) {} 122 123 static inline void qed_ooo_free(struct qed_hwfn *p_hwfn) {} 124 125 static inline void 126 qed_ooo_release_connection_isles(struct qed_hwfn *p_hwfn, 127 struct qed_ooo_info *p_ooo_info, 128 u32 cid) {} 129 130 static inline void qed_ooo_release_all_isles(struct qed_hwfn *p_hwfn, 131 struct qed_ooo_info *p_ooo_info) 132 {} 133 134 static inline void qed_ooo_put_free_buffer(struct qed_hwfn *p_hwfn, 135 struct qed_ooo_info *p_ooo_info, 136 struct qed_ooo_buffer *p_buffer) {} 137 138 static inline struct qed_ooo_buffer * 139 qed_ooo_get_free_buffer(struct qed_hwfn *p_hwfn, 140 struct qed_ooo_info *p_ooo_info) { return NULL; } 141 142 static inline void qed_ooo_put_ready_buffer(struct qed_hwfn *p_hwfn, 143 struct qed_ooo_info *p_ooo_info, 144 struct qed_ooo_buffer *p_buffer, 145 u8 on_tail) {} 146 147 static inline struct qed_ooo_buffer * 148 qed_ooo_get_ready_buffer(struct qed_hwfn *p_hwfn, 149 struct qed_ooo_info *p_ooo_info) { return NULL; } 150 151 static inline void qed_ooo_delete_isles(struct qed_hwfn *p_hwfn, 152 struct qed_ooo_info *p_ooo_info, 153 u32 cid, u8 drop_isle, u8 drop_size) {} 154 155 static inline void qed_ooo_add_new_isle(struct qed_hwfn *p_hwfn, 156 struct qed_ooo_info *p_ooo_info, 157 u32 cid, u8 ooo_isle, 158 struct qed_ooo_buffer *p_buffer) {} 159 160 static inline void qed_ooo_add_new_buffer(struct qed_hwfn *p_hwfn, 161 struct qed_ooo_info *p_ooo_info, 162 u32 cid, u8 ooo_isle, 163 struct qed_ooo_buffer *p_buffer, 164 u8 buffer_side) {} 165 166 static inline void qed_ooo_join_isles(struct qed_hwfn *p_hwfn, 167 struct qed_ooo_info *p_ooo_info, u32 cid, 168 u8 left_isle) {} 169 #endif /* IS_ENABLED(CONFIG_QED_ISCSI) */ 170 171 #endif 172