1 /* SPDX-License-Identifier: (BSD-3-Clause OR GPL-2.0) 2 * Copyright(c) 2018-2019 Pensando Systems, Inc. All rights reserved. 3 */ 4 5 #ifndef _IONIC_DEV_H_ 6 #define _IONIC_DEV_H_ 7 8 #include <stdbool.h> 9 10 #include "ionic_osdep.h" 11 #include "ionic_if.h" 12 #include "ionic_regs.h" 13 14 #define IONIC_MIN_MTU RTE_ETHER_MIN_MTU 15 #define IONIC_MAX_MTU 9194 16 17 #define IONIC_MAX_RING_DESC 32768 18 #define IONIC_MIN_RING_DESC 16 19 #define IONIC_DEF_TXRX_DESC 4096 20 21 #define IONIC_LIFS_MAX 1024 22 23 #define IONIC_DEVCMD_TIMEOUT 30 /* devcmd_timeout */ 24 #define IONIC_ALIGN 4096 25 26 struct ionic_adapter; 27 28 struct ionic_dev_bar { 29 void __iomem *vaddr; 30 rte_iova_t bus_addr; 31 unsigned long len; 32 }; 33 34 static inline void ionic_struct_size_checks(void) 35 { 36 RTE_BUILD_BUG_ON(sizeof(struct ionic_doorbell) != 8); 37 RTE_BUILD_BUG_ON(sizeof(struct ionic_intr) != 32); 38 RTE_BUILD_BUG_ON(sizeof(struct ionic_intr_status) != 8); 39 40 RTE_BUILD_BUG_ON(sizeof(union ionic_dev_regs) != 4096); 41 RTE_BUILD_BUG_ON(sizeof(union ionic_dev_info_regs) != 2048); 42 RTE_BUILD_BUG_ON(sizeof(union ionic_dev_cmd_regs) != 2048); 43 44 RTE_BUILD_BUG_ON(sizeof(struct ionic_lif_stats) != 1024); 45 46 RTE_BUILD_BUG_ON(sizeof(struct ionic_admin_cmd) != 64); 47 RTE_BUILD_BUG_ON(sizeof(struct ionic_admin_comp) != 16); 48 RTE_BUILD_BUG_ON(sizeof(struct ionic_nop_cmd) != 64); 49 RTE_BUILD_BUG_ON(sizeof(struct ionic_nop_comp) != 16); 50 51 /* Device commands */ 52 RTE_BUILD_BUG_ON(sizeof(struct ionic_dev_identify_cmd) != 64); 53 RTE_BUILD_BUG_ON(sizeof(struct ionic_dev_identify_comp) != 16); 54 RTE_BUILD_BUG_ON(sizeof(struct ionic_dev_init_cmd) != 64); 55 RTE_BUILD_BUG_ON(sizeof(struct ionic_dev_init_comp) != 16); 56 RTE_BUILD_BUG_ON(sizeof(struct ionic_dev_reset_cmd) != 64); 57 RTE_BUILD_BUG_ON(sizeof(struct ionic_dev_reset_comp) != 16); 58 RTE_BUILD_BUG_ON(sizeof(struct ionic_dev_getattr_cmd) != 64); 59 RTE_BUILD_BUG_ON(sizeof(struct ionic_dev_getattr_comp) != 16); 60 RTE_BUILD_BUG_ON(sizeof(struct ionic_dev_setattr_cmd) != 64); 61 RTE_BUILD_BUG_ON(sizeof(struct ionic_dev_setattr_comp) != 16); 62 63 /* Port commands */ 64 RTE_BUILD_BUG_ON(sizeof(struct ionic_port_identify_cmd) != 64); 65 RTE_BUILD_BUG_ON(sizeof(struct ionic_port_identify_comp) != 16); 66 RTE_BUILD_BUG_ON(sizeof(struct ionic_port_init_cmd) != 64); 67 RTE_BUILD_BUG_ON(sizeof(struct ionic_port_init_comp) != 16); 68 RTE_BUILD_BUG_ON(sizeof(struct ionic_port_reset_cmd) != 64); 69 RTE_BUILD_BUG_ON(sizeof(struct ionic_port_reset_comp) != 16); 70 RTE_BUILD_BUG_ON(sizeof(struct ionic_port_getattr_cmd) != 64); 71 RTE_BUILD_BUG_ON(sizeof(struct ionic_port_getattr_comp) != 16); 72 RTE_BUILD_BUG_ON(sizeof(struct ionic_port_setattr_cmd) != 64); 73 RTE_BUILD_BUG_ON(sizeof(struct ionic_port_setattr_comp) != 16); 74 75 /* LIF commands */ 76 RTE_BUILD_BUG_ON(sizeof(struct ionic_lif_init_cmd) != 64); 77 RTE_BUILD_BUG_ON(sizeof(struct ionic_lif_init_comp) != 16); 78 RTE_BUILD_BUG_ON(sizeof(struct ionic_lif_reset_cmd) != 64); 79 RTE_BUILD_BUG_ON(sizeof(struct ionic_lif_getattr_cmd) != 64); 80 RTE_BUILD_BUG_ON(sizeof(struct ionic_lif_getattr_comp) != 16); 81 RTE_BUILD_BUG_ON(sizeof(struct ionic_lif_setattr_cmd) != 64); 82 RTE_BUILD_BUG_ON(sizeof(struct ionic_lif_setattr_comp) != 16); 83 84 RTE_BUILD_BUG_ON(sizeof(struct ionic_q_init_cmd) != 64); 85 RTE_BUILD_BUG_ON(sizeof(struct ionic_q_init_comp) != 16); 86 RTE_BUILD_BUG_ON(sizeof(struct ionic_q_control_cmd) != 64); 87 88 RTE_BUILD_BUG_ON(sizeof(struct ionic_rx_mode_set_cmd) != 64); 89 RTE_BUILD_BUG_ON(sizeof(struct ionic_rx_filter_add_cmd) != 64); 90 RTE_BUILD_BUG_ON(sizeof(struct ionic_rx_filter_add_comp) != 16); 91 RTE_BUILD_BUG_ON(sizeof(struct ionic_rx_filter_del_cmd) != 64); 92 93 /* RDMA commands */ 94 RTE_BUILD_BUG_ON(sizeof(struct ionic_rdma_reset_cmd) != 64); 95 RTE_BUILD_BUG_ON(sizeof(struct ionic_rdma_queue_cmd) != 64); 96 97 /* Events */ 98 RTE_BUILD_BUG_ON(sizeof(struct ionic_notifyq_cmd) != 4); 99 RTE_BUILD_BUG_ON(sizeof(union ionic_notifyq_comp) != 64); 100 RTE_BUILD_BUG_ON(sizeof(struct ionic_notifyq_event) != 64); 101 RTE_BUILD_BUG_ON(sizeof(struct ionic_link_change_event) != 64); 102 RTE_BUILD_BUG_ON(sizeof(struct ionic_reset_event) != 64); 103 RTE_BUILD_BUG_ON(sizeof(struct ionic_heartbeat_event) != 64); 104 RTE_BUILD_BUG_ON(sizeof(struct ionic_log_event) != 64); 105 106 /* I/O */ 107 RTE_BUILD_BUG_ON(sizeof(struct ionic_txq_desc) != 16); 108 RTE_BUILD_BUG_ON(sizeof(struct ionic_txq_sg_desc) != 128); 109 RTE_BUILD_BUG_ON(sizeof(struct ionic_txq_comp) != 16); 110 111 RTE_BUILD_BUG_ON(sizeof(struct ionic_rxq_desc) != 16); 112 RTE_BUILD_BUG_ON(sizeof(struct ionic_rxq_sg_desc) != 128); 113 RTE_BUILD_BUG_ON(sizeof(struct ionic_rxq_comp) != 16); 114 } 115 116 struct ionic_dev { 117 union ionic_dev_info_regs __iomem *dev_info; 118 union ionic_dev_cmd_regs __iomem *dev_cmd; 119 120 struct ionic_doorbell __iomem *db_pages; 121 rte_iova_t phy_db_pages; 122 123 struct ionic_intr __iomem *intr_ctrl; 124 125 struct ionic_intr_status __iomem *intr_status; 126 127 struct ionic_port_info *port_info; 128 const struct rte_memzone *port_info_z; 129 rte_iova_t port_info_pa; 130 uint32_t port_info_sz; 131 }; 132 133 struct ionic_queue; 134 struct ionic_desc_info; 135 136 typedef void (*desc_cb)(struct ionic_queue *q, 137 uint32_t q_desc_index, 138 uint32_t cq_desc_index, 139 void *cb_arg, void *service_cb_arg); 140 141 struct ionic_desc_info { 142 desc_cb cb; 143 void *cb_arg; 144 }; 145 146 struct ionic_queue { 147 struct ionic_dev *idev; 148 struct ionic_lif *lif; 149 struct ionic_cq *bound_cq; 150 uint32_t index; 151 uint32_t type; 152 uint32_t hw_index; 153 uint32_t hw_type; 154 void *base; 155 void *sg_base; 156 rte_iova_t base_pa; 157 rte_iova_t sg_base_pa; 158 struct ionic_desc_info *info; 159 uint32_t tail_idx; 160 uint32_t head_idx; 161 uint32_t num_descs; 162 uint32_t desc_size; 163 uint32_t sg_desc_size; 164 uint32_t pid; 165 uint32_t qid; 166 uint32_t qtype; 167 struct ionic_doorbell __iomem *db; 168 void *nop_desc; 169 }; 170 171 #define IONIC_INTR_INDEX_NOT_ASSIGNED (-1) 172 #define IONIC_INTR_NAME_MAX_SZ (32) 173 174 struct ionic_intr_info { 175 char name[IONIC_INTR_NAME_MAX_SZ]; 176 int index; 177 uint32_t vector; 178 struct ionic_intr __iomem *ctrl; 179 }; 180 181 struct ionic_cq { 182 struct ionic_lif *lif; 183 struct ionic_queue *bound_q; 184 uint32_t tail_idx; 185 uint32_t num_descs; 186 uint32_t desc_size; 187 bool done_color; 188 void *base; 189 rte_iova_t base_pa; 190 struct ionic_intr_info *bound_intr; 191 }; 192 193 /** ionic_admin_ctx - Admin command context. 194 * @pending_work: Flag that indicates a completion. 195 * @cmd: Admin command (64B) to be copied to the queue. 196 * @comp: Admin completion (16B) copied from the queue. 197 */ 198 struct ionic_admin_ctx { 199 bool pending_work; 200 union ionic_adminq_cmd cmd; 201 union ionic_adminq_comp comp; 202 }; 203 204 struct ionic_lif; 205 struct ionic_adapter; 206 struct ionic_qcq; 207 208 void ionic_intr_init(struct ionic_dev *idev, struct ionic_intr_info *intr, 209 unsigned long index); 210 211 int ionic_dev_setup(struct ionic_adapter *adapter); 212 213 void ionic_dev_cmd_go(struct ionic_dev *idev, union ionic_dev_cmd *cmd); 214 uint8_t ionic_dev_cmd_status(struct ionic_dev *idev); 215 bool ionic_dev_cmd_done(struct ionic_dev *idev); 216 void ionic_dev_cmd_comp(struct ionic_dev *idev, void *mem); 217 218 void ionic_dev_cmd_identify(struct ionic_dev *idev, uint8_t ver); 219 void ionic_dev_cmd_init(struct ionic_dev *idev); 220 void ionic_dev_cmd_reset(struct ionic_dev *idev); 221 222 void ionic_dev_cmd_port_identify(struct ionic_dev *idev); 223 void ionic_dev_cmd_port_init(struct ionic_dev *idev); 224 void ionic_dev_cmd_port_reset(struct ionic_dev *idev); 225 void ionic_dev_cmd_port_state(struct ionic_dev *idev, uint8_t state); 226 void ionic_dev_cmd_port_speed(struct ionic_dev *idev, uint32_t speed); 227 void ionic_dev_cmd_port_mtu(struct ionic_dev *idev, uint32_t mtu); 228 void ionic_dev_cmd_port_autoneg(struct ionic_dev *idev, uint8_t an_enable); 229 void ionic_dev_cmd_port_fec(struct ionic_dev *idev, uint8_t fec_type); 230 void ionic_dev_cmd_port_pause(struct ionic_dev *idev, uint8_t pause_type); 231 void ionic_dev_cmd_port_loopback(struct ionic_dev *idev, 232 uint8_t loopback_mode); 233 234 void ionic_dev_cmd_lif_identify(struct ionic_dev *idev, uint8_t type, 235 uint8_t ver); 236 void ionic_dev_cmd_lif_init(struct ionic_dev *idev, uint16_t lif_index, 237 rte_iova_t addr); 238 void ionic_dev_cmd_lif_reset(struct ionic_dev *idev, uint16_t lif_index); 239 void ionic_dev_cmd_adminq_init(struct ionic_dev *idev, struct ionic_qcq *qcq, 240 uint16_t lif_index, uint16_t intr_index); 241 242 struct ionic_doorbell __iomem *ionic_db_map(struct ionic_lif *lif, 243 struct ionic_queue *q); 244 int ionic_db_page_num(struct ionic_lif *lif, int pid); 245 246 int ionic_cq_init(struct ionic_lif *lif, struct ionic_cq *cq, 247 struct ionic_intr_info *intr, uint32_t num_descs, 248 size_t desc_size); 249 void ionic_cq_map(struct ionic_cq *cq, void *base, rte_iova_t base_pa); 250 void ionic_cq_bind(struct ionic_cq *cq, struct ionic_queue *q); 251 typedef bool (*ionic_cq_cb)(struct ionic_cq *cq, uint32_t cq_desc_index, 252 void *cb_arg); 253 uint32_t ionic_cq_service(struct ionic_cq *cq, uint32_t work_to_do, 254 ionic_cq_cb cb, void *cb_arg); 255 256 int ionic_q_init(struct ionic_lif *lif, struct ionic_dev *idev, 257 struct ionic_queue *q, uint32_t index, uint32_t num_descs, 258 size_t desc_size, size_t sg_desc_size, uint32_t pid); 259 void ionic_q_map(struct ionic_queue *q, void *base, rte_iova_t base_pa); 260 void ionic_q_sg_map(struct ionic_queue *q, void *base, rte_iova_t base_pa); 261 void ionic_q_flush(struct ionic_queue *q); 262 void ionic_q_post(struct ionic_queue *q, bool ring_doorbell, desc_cb cb, 263 void *cb_arg); 264 uint32_t ionic_q_space_avail(struct ionic_queue *q); 265 bool ionic_q_has_space(struct ionic_queue *q, uint32_t want); 266 void ionic_q_service(struct ionic_queue *q, uint32_t cq_desc_index, 267 uint32_t stop_index, void *service_cb_arg); 268 269 int ionic_adminq_post(struct ionic_lif *lif, struct ionic_admin_ctx *ctx); 270 271 #endif /* _IONIC_DEV_H_ */ 272