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 5 /* devcmd_timeout */ 24 #define IONIC_DEVCMD_CHECK_PERIOD_US 10 /* devcmd status chk period */ 25 26 #define IONIC_ALIGN 4096 27 28 struct ionic_adapter; 29 30 struct ionic_dev_bar { 31 void __iomem *vaddr; 32 rte_iova_t bus_addr; 33 unsigned long len; 34 }; 35 36 static inline void ionic_struct_size_checks(void) 37 { 38 RTE_BUILD_BUG_ON(sizeof(struct ionic_doorbell) != 8); 39 RTE_BUILD_BUG_ON(sizeof(struct ionic_intr) != 32); 40 RTE_BUILD_BUG_ON(sizeof(struct ionic_intr_status) != 8); 41 42 RTE_BUILD_BUG_ON(sizeof(union ionic_dev_regs) != 4096); 43 RTE_BUILD_BUG_ON(sizeof(union ionic_dev_info_regs) != 2048); 44 RTE_BUILD_BUG_ON(sizeof(union ionic_dev_cmd_regs) != 2048); 45 46 RTE_BUILD_BUG_ON(sizeof(struct ionic_lif_stats) != 1024); 47 48 RTE_BUILD_BUG_ON(sizeof(struct ionic_admin_cmd) != 64); 49 RTE_BUILD_BUG_ON(sizeof(struct ionic_admin_comp) != 16); 50 RTE_BUILD_BUG_ON(sizeof(struct ionic_nop_cmd) != 64); 51 RTE_BUILD_BUG_ON(sizeof(struct ionic_nop_comp) != 16); 52 53 /* Device commands */ 54 RTE_BUILD_BUG_ON(sizeof(struct ionic_dev_identify_cmd) != 64); 55 RTE_BUILD_BUG_ON(sizeof(struct ionic_dev_identify_comp) != 16); 56 RTE_BUILD_BUG_ON(sizeof(struct ionic_dev_init_cmd) != 64); 57 RTE_BUILD_BUG_ON(sizeof(struct ionic_dev_init_comp) != 16); 58 RTE_BUILD_BUG_ON(sizeof(struct ionic_dev_reset_cmd) != 64); 59 RTE_BUILD_BUG_ON(sizeof(struct ionic_dev_reset_comp) != 16); 60 RTE_BUILD_BUG_ON(sizeof(struct ionic_dev_getattr_cmd) != 64); 61 RTE_BUILD_BUG_ON(sizeof(struct ionic_dev_getattr_comp) != 16); 62 RTE_BUILD_BUG_ON(sizeof(struct ionic_dev_setattr_cmd) != 64); 63 RTE_BUILD_BUG_ON(sizeof(struct ionic_dev_setattr_comp) != 16); 64 65 /* Port commands */ 66 RTE_BUILD_BUG_ON(sizeof(struct ionic_port_identify_cmd) != 64); 67 RTE_BUILD_BUG_ON(sizeof(struct ionic_port_identify_comp) != 16); 68 RTE_BUILD_BUG_ON(sizeof(struct ionic_port_init_cmd) != 64); 69 RTE_BUILD_BUG_ON(sizeof(struct ionic_port_init_comp) != 16); 70 RTE_BUILD_BUG_ON(sizeof(struct ionic_port_reset_cmd) != 64); 71 RTE_BUILD_BUG_ON(sizeof(struct ionic_port_reset_comp) != 16); 72 RTE_BUILD_BUG_ON(sizeof(struct ionic_port_getattr_cmd) != 64); 73 RTE_BUILD_BUG_ON(sizeof(struct ionic_port_getattr_comp) != 16); 74 RTE_BUILD_BUG_ON(sizeof(struct ionic_port_setattr_cmd) != 64); 75 RTE_BUILD_BUG_ON(sizeof(struct ionic_port_setattr_comp) != 16); 76 77 /* LIF commands */ 78 RTE_BUILD_BUG_ON(sizeof(struct ionic_lif_init_cmd) != 64); 79 RTE_BUILD_BUG_ON(sizeof(struct ionic_lif_init_comp) != 16); 80 RTE_BUILD_BUG_ON(sizeof(struct ionic_lif_reset_cmd) != 64); 81 RTE_BUILD_BUG_ON(sizeof(struct ionic_lif_getattr_cmd) != 64); 82 RTE_BUILD_BUG_ON(sizeof(struct ionic_lif_getattr_comp) != 16); 83 RTE_BUILD_BUG_ON(sizeof(struct ionic_lif_setattr_cmd) != 64); 84 RTE_BUILD_BUG_ON(sizeof(struct ionic_lif_setattr_comp) != 16); 85 86 RTE_BUILD_BUG_ON(sizeof(struct ionic_q_init_cmd) != 64); 87 RTE_BUILD_BUG_ON(sizeof(struct ionic_q_init_comp) != 16); 88 RTE_BUILD_BUG_ON(sizeof(struct ionic_q_control_cmd) != 64); 89 90 RTE_BUILD_BUG_ON(sizeof(struct ionic_rx_mode_set_cmd) != 64); 91 RTE_BUILD_BUG_ON(sizeof(struct ionic_rx_filter_add_cmd) != 64); 92 RTE_BUILD_BUG_ON(sizeof(struct ionic_rx_filter_add_comp) != 16); 93 RTE_BUILD_BUG_ON(sizeof(struct ionic_rx_filter_del_cmd) != 64); 94 95 /* RDMA commands */ 96 RTE_BUILD_BUG_ON(sizeof(struct ionic_rdma_reset_cmd) != 64); 97 RTE_BUILD_BUG_ON(sizeof(struct ionic_rdma_queue_cmd) != 64); 98 99 /* Events */ 100 RTE_BUILD_BUG_ON(sizeof(struct ionic_notifyq_cmd) != 4); 101 RTE_BUILD_BUG_ON(sizeof(union ionic_notifyq_comp) != 64); 102 RTE_BUILD_BUG_ON(sizeof(struct ionic_notifyq_event) != 64); 103 RTE_BUILD_BUG_ON(sizeof(struct ionic_link_change_event) != 64); 104 RTE_BUILD_BUG_ON(sizeof(struct ionic_reset_event) != 64); 105 RTE_BUILD_BUG_ON(sizeof(struct ionic_heartbeat_event) != 64); 106 RTE_BUILD_BUG_ON(sizeof(struct ionic_log_event) != 64); 107 108 /* I/O */ 109 RTE_BUILD_BUG_ON(sizeof(struct ionic_txq_desc) != 16); 110 RTE_BUILD_BUG_ON(sizeof(struct ionic_txq_sg_desc) != 128); 111 RTE_BUILD_BUG_ON(sizeof(struct ionic_txq_comp) != 16); 112 113 RTE_BUILD_BUG_ON(sizeof(struct ionic_rxq_desc) != 16); 114 RTE_BUILD_BUG_ON(sizeof(struct ionic_rxq_sg_desc) != 128); 115 RTE_BUILD_BUG_ON(sizeof(struct ionic_rxq_comp) != 16); 116 } 117 118 struct ionic_dev { 119 union ionic_dev_info_regs __iomem *dev_info; 120 union ionic_dev_cmd_regs __iomem *dev_cmd; 121 122 struct ionic_doorbell __iomem *db_pages; 123 rte_iova_t phy_db_pages; 124 125 struct ionic_intr __iomem *intr_ctrl; 126 127 struct ionic_intr_status __iomem *intr_status; 128 129 struct ionic_port_info *port_info; 130 const struct rte_memzone *port_info_z; 131 rte_iova_t port_info_pa; 132 uint32_t port_info_sz; 133 }; 134 135 struct ionic_queue; 136 struct ionic_desc_info; 137 138 typedef void (*desc_cb)(struct ionic_queue *q, 139 uint32_t q_desc_index, 140 uint32_t cq_desc_index, 141 void *cb_arg, void *service_cb_arg); 142 143 struct ionic_desc_info { 144 desc_cb cb; 145 void *cb_arg; 146 }; 147 148 struct ionic_queue { 149 struct ionic_dev *idev; 150 struct ionic_lif *lif; 151 struct ionic_cq *bound_cq; 152 uint32_t index; 153 uint32_t type; 154 uint32_t hw_index; 155 uint32_t hw_type; 156 void *base; 157 void *sg_base; 158 rte_iova_t base_pa; 159 rte_iova_t sg_base_pa; 160 struct ionic_desc_info *info; 161 uint32_t tail_idx; 162 uint32_t head_idx; 163 uint32_t num_descs; 164 uint32_t desc_size; 165 uint32_t sg_desc_size; 166 uint32_t pid; 167 uint32_t qid; 168 uint32_t qtype; 169 struct ionic_doorbell __iomem *db; 170 void *nop_desc; 171 }; 172 173 #define IONIC_INTR_INDEX_NOT_ASSIGNED (-1) 174 #define IONIC_INTR_NAME_MAX_SZ (32) 175 176 struct ionic_intr_info { 177 char name[IONIC_INTR_NAME_MAX_SZ]; 178 int index; 179 uint32_t vector; 180 struct ionic_intr __iomem *ctrl; 181 }; 182 183 struct ionic_cq { 184 struct ionic_lif *lif; 185 struct ionic_queue *bound_q; 186 uint32_t tail_idx; 187 uint32_t num_descs; 188 uint32_t desc_size; 189 bool done_color; 190 void *base; 191 rte_iova_t base_pa; 192 struct ionic_intr_info *bound_intr; 193 }; 194 195 /** ionic_admin_ctx - Admin command context. 196 * @pending_work: Flag that indicates a completion. 197 * @cmd: Admin command (64B) to be copied to the queue. 198 * @comp: Admin completion (16B) copied from the queue. 199 */ 200 struct ionic_admin_ctx { 201 bool pending_work; 202 union ionic_adminq_cmd cmd; 203 union ionic_adminq_comp comp; 204 }; 205 206 struct ionic_lif; 207 struct ionic_adapter; 208 struct ionic_qcq; 209 210 void ionic_intr_init(struct ionic_dev *idev, struct ionic_intr_info *intr, 211 unsigned long index); 212 213 int ionic_dev_setup(struct ionic_adapter *adapter); 214 215 void ionic_dev_cmd_go(struct ionic_dev *idev, union ionic_dev_cmd *cmd); 216 uint8_t ionic_dev_cmd_status(struct ionic_dev *idev); 217 bool ionic_dev_cmd_done(struct ionic_dev *idev); 218 void ionic_dev_cmd_comp(struct ionic_dev *idev, void *mem); 219 220 void ionic_dev_cmd_identify(struct ionic_dev *idev, uint8_t ver); 221 void ionic_dev_cmd_init(struct ionic_dev *idev); 222 void ionic_dev_cmd_reset(struct ionic_dev *idev); 223 224 void ionic_dev_cmd_port_identify(struct ionic_dev *idev); 225 void ionic_dev_cmd_port_init(struct ionic_dev *idev); 226 void ionic_dev_cmd_port_reset(struct ionic_dev *idev); 227 void ionic_dev_cmd_port_state(struct ionic_dev *idev, uint8_t state); 228 void ionic_dev_cmd_port_speed(struct ionic_dev *idev, uint32_t speed); 229 void ionic_dev_cmd_port_mtu(struct ionic_dev *idev, uint32_t mtu); 230 void ionic_dev_cmd_port_autoneg(struct ionic_dev *idev, uint8_t an_enable); 231 void ionic_dev_cmd_port_fec(struct ionic_dev *idev, uint8_t fec_type); 232 void ionic_dev_cmd_port_pause(struct ionic_dev *idev, uint8_t pause_type); 233 void ionic_dev_cmd_port_loopback(struct ionic_dev *idev, 234 uint8_t loopback_mode); 235 236 void ionic_dev_cmd_lif_identify(struct ionic_dev *idev, uint8_t type, 237 uint8_t ver); 238 void ionic_dev_cmd_lif_init(struct ionic_dev *idev, uint16_t lif_index, 239 rte_iova_t addr); 240 void ionic_dev_cmd_lif_reset(struct ionic_dev *idev, uint16_t lif_index); 241 void ionic_dev_cmd_adminq_init(struct ionic_dev *idev, struct ionic_qcq *qcq, 242 uint16_t lif_index, uint16_t intr_index); 243 244 struct ionic_doorbell __iomem *ionic_db_map(struct ionic_lif *lif, 245 struct ionic_queue *q); 246 int ionic_db_page_num(struct ionic_lif *lif, int pid); 247 248 int ionic_cq_init(struct ionic_lif *lif, struct ionic_cq *cq, 249 struct ionic_intr_info *intr, uint32_t num_descs, 250 size_t desc_size); 251 void ionic_cq_map(struct ionic_cq *cq, void *base, rte_iova_t base_pa); 252 void ionic_cq_bind(struct ionic_cq *cq, struct ionic_queue *q); 253 typedef bool (*ionic_cq_cb)(struct ionic_cq *cq, uint32_t cq_desc_index, 254 void *cb_arg); 255 uint32_t ionic_cq_service(struct ionic_cq *cq, uint32_t work_to_do, 256 ionic_cq_cb cb, void *cb_arg); 257 258 int ionic_q_init(struct ionic_lif *lif, struct ionic_dev *idev, 259 struct ionic_queue *q, uint32_t index, uint32_t num_descs, 260 size_t desc_size, size_t sg_desc_size, uint32_t pid); 261 void ionic_q_map(struct ionic_queue *q, void *base, rte_iova_t base_pa); 262 void ionic_q_sg_map(struct ionic_queue *q, void *base, rte_iova_t base_pa); 263 void ionic_q_flush(struct ionic_queue *q); 264 void ionic_q_post(struct ionic_queue *q, bool ring_doorbell, desc_cb cb, 265 void *cb_arg); 266 uint32_t ionic_q_space_avail(struct ionic_queue *q); 267 bool ionic_q_has_space(struct ionic_queue *q, uint32_t want); 268 void ionic_q_service(struct ionic_queue *q, uint32_t cq_desc_index, 269 uint32_t stop_index, void *service_cb_arg); 270 271 int ionic_adminq_post(struct ionic_lif *lif, struct ionic_admin_ctx *ctx); 272 273 #endif /* _IONIC_DEV_H_ */ 274