qed_ooo.h (4888B)
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_OOO_H 8#define _QED_OOO_H 9#include <linux/types.h> 10#include <linux/list.h> 11#include <linux/slab.h> 12#include "qed.h" 13 14#define QED_MAX_NUM_ISLES 256 15#define QED_MAX_NUM_OOO_HISTORY_ENTRIES 512 16 17#define QED_OOO_LEFT_BUF 0 18#define QED_OOO_RIGHT_BUF 1 19 20struct qed_ooo_buffer { 21 struct list_head list_entry; 22 void *rx_buffer_virt_addr; 23 dma_addr_t rx_buffer_phys_addr; 24 u32 rx_buffer_size; 25 u16 packet_length; 26 u16 parse_flags; 27 u16 vlan; 28 u8 placement_offset; 29}; 30 31struct qed_ooo_isle { 32 struct list_head list_entry; 33 struct list_head buffers_list; 34}; 35 36struct qed_ooo_archipelago { 37 struct list_head isles_list; 38}; 39 40struct qed_ooo_history { 41 struct ooo_opaque *p_cqes; 42 u32 head_idx; 43 u32 num_of_cqes; 44}; 45 46struct qed_ooo_info { 47 struct list_head free_buffers_list; 48 struct list_head ready_buffers_list; 49 struct list_head free_isles_list; 50 struct qed_ooo_archipelago *p_archipelagos_mem; 51 struct qed_ooo_isle *p_isles_mem; 52 struct qed_ooo_history ooo_history; 53 u32 cur_isles_number; 54 u32 max_isles_number; 55 u32 gen_isles_number; 56 u16 max_num_archipelagos; 57 u16 cid_base; 58}; 59 60#if IS_ENABLED(CONFIG_QED_OOO) 61void qed_ooo_save_history_entry(struct qed_hwfn *p_hwfn, 62 struct qed_ooo_info *p_ooo_info, 63 struct ooo_opaque *p_cqe); 64 65int qed_ooo_alloc(struct qed_hwfn *p_hwfn); 66 67void qed_ooo_setup(struct qed_hwfn *p_hwfn); 68 69void qed_ooo_free(struct qed_hwfn *p_hwfn); 70 71void qed_ooo_release_connection_isles(struct qed_hwfn *p_hwfn, 72 struct qed_ooo_info *p_ooo_info, 73 u32 cid); 74 75void qed_ooo_release_all_isles(struct qed_hwfn *p_hwfn, 76 struct qed_ooo_info *p_ooo_info); 77 78void qed_ooo_put_free_buffer(struct qed_hwfn *p_hwfn, 79 struct qed_ooo_info *p_ooo_info, 80 struct qed_ooo_buffer *p_buffer); 81 82struct qed_ooo_buffer * 83qed_ooo_get_free_buffer(struct qed_hwfn *p_hwfn, 84 struct qed_ooo_info *p_ooo_info); 85 86void qed_ooo_put_ready_buffer(struct qed_hwfn *p_hwfn, 87 struct qed_ooo_info *p_ooo_info, 88 struct qed_ooo_buffer *p_buffer, u8 on_tail); 89 90struct qed_ooo_buffer * 91qed_ooo_get_ready_buffer(struct qed_hwfn *p_hwfn, 92 struct qed_ooo_info *p_ooo_info); 93 94void qed_ooo_delete_isles(struct qed_hwfn *p_hwfn, 95 struct qed_ooo_info *p_ooo_info, 96 u32 cid, u8 drop_isle, u8 drop_size); 97 98void qed_ooo_add_new_isle(struct qed_hwfn *p_hwfn, 99 struct qed_ooo_info *p_ooo_info, 100 u32 cid, 101 u8 ooo_isle, struct qed_ooo_buffer *p_buffer); 102 103void qed_ooo_add_new_buffer(struct qed_hwfn *p_hwfn, 104 struct qed_ooo_info *p_ooo_info, 105 u32 cid, 106 u8 ooo_isle, 107 struct qed_ooo_buffer *p_buffer, u8 buffer_side); 108 109void qed_ooo_join_isles(struct qed_hwfn *p_hwfn, 110 struct qed_ooo_info *p_ooo_info, u32 cid, 111 u8 left_isle); 112#else /* IS_ENABLED(CONFIG_QED_ISCSI) */ 113static inline void qed_ooo_save_history_entry(struct qed_hwfn *p_hwfn, 114 struct qed_ooo_info *p_ooo_info, 115 struct ooo_opaque *p_cqe) {} 116 117static inline int qed_ooo_alloc(struct qed_hwfn *p_hwfn) 118{ 119 return -EINVAL; 120} 121 122static inline void qed_ooo_setup(struct qed_hwfn *p_hwfn) {} 123 124static inline void qed_ooo_free(struct qed_hwfn *p_hwfn) {} 125 126static inline void 127qed_ooo_release_connection_isles(struct qed_hwfn *p_hwfn, 128 struct qed_ooo_info *p_ooo_info, 129 u32 cid) {} 130 131static inline void qed_ooo_release_all_isles(struct qed_hwfn *p_hwfn, 132 struct qed_ooo_info *p_ooo_info) 133 {} 134 135static inline void qed_ooo_put_free_buffer(struct qed_hwfn *p_hwfn, 136 struct qed_ooo_info *p_ooo_info, 137 struct qed_ooo_buffer *p_buffer) {} 138 139static inline struct qed_ooo_buffer * 140qed_ooo_get_free_buffer(struct qed_hwfn *p_hwfn, 141 struct qed_ooo_info *p_ooo_info) { return NULL; } 142 143static inline void qed_ooo_put_ready_buffer(struct qed_hwfn *p_hwfn, 144 struct qed_ooo_info *p_ooo_info, 145 struct qed_ooo_buffer *p_buffer, 146 u8 on_tail) {} 147 148static inline struct qed_ooo_buffer * 149qed_ooo_get_ready_buffer(struct qed_hwfn *p_hwfn, 150 struct qed_ooo_info *p_ooo_info) { return NULL; } 151 152static inline void qed_ooo_delete_isles(struct qed_hwfn *p_hwfn, 153 struct qed_ooo_info *p_ooo_info, 154 u32 cid, u8 drop_isle, u8 drop_size) {} 155 156static inline void qed_ooo_add_new_isle(struct qed_hwfn *p_hwfn, 157 struct qed_ooo_info *p_ooo_info, 158 u32 cid, u8 ooo_isle, 159 struct qed_ooo_buffer *p_buffer) {} 160 161static inline void qed_ooo_add_new_buffer(struct qed_hwfn *p_hwfn, 162 struct qed_ooo_info *p_ooo_info, 163 u32 cid, u8 ooo_isle, 164 struct qed_ooo_buffer *p_buffer, 165 u8 buffer_side) {} 166 167static inline void qed_ooo_join_isles(struct qed_hwfn *p_hwfn, 168 struct qed_ooo_info *p_ooo_info, u32 cid, 169 u8 left_isle) {} 170#endif /* IS_ENABLED(CONFIG_QED_ISCSI) */ 171 172#endif