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 struct ionic_intr __iomem *intr_ctrl; 124 struct ionic_intr_status __iomem *intr_status; 125 126 struct ionic_port_info *port_info; 127 const struct rte_memzone *port_info_z; 128 rte_iova_t port_info_pa; 129 uint32_t port_info_sz; 130 }; 131 132 struct ionic_queue; 133 struct ionic_desc_info; 134 135 typedef void (*desc_cb)(struct ionic_queue *q, 136 uint32_t q_desc_index, 137 uint32_t cq_desc_index, 138 void *cb_arg, void *service_cb_arg); 139 140 struct ionic_desc_info { 141 desc_cb cb; 142 void *cb_arg; 143 }; 144 145 struct ionic_queue { 146 struct ionic_dev *idev; 147 struct ionic_lif *lif; 148 struct ionic_cq *bound_cq; 149 uint32_t index; 150 uint32_t type; 151 uint32_t hw_index; 152 uint32_t hw_type; 153 void *base; 154 void *sg_base; 155 rte_iova_t base_pa; 156 rte_iova_t sg_base_pa; 157 struct ionic_desc_info *info; 158 uint32_t tail_idx; 159 uint32_t head_idx; 160 uint32_t num_descs; 161 uint32_t desc_size; 162 uint32_t sg_desc_size; 163 uint32_t qid; 164 uint32_t qtype; 165 struct ionic_doorbell __iomem *db; 166 }; 167 168 #define IONIC_INTR_NONE (-1) 169 170 struct ionic_intr_info { 171 int index; 172 uint32_t vector; 173 struct ionic_intr __iomem *ctrl; 174 }; 175 176 struct ionic_cq { 177 struct ionic_lif *lif; 178 struct ionic_queue *bound_q; 179 uint32_t tail_idx; 180 uint32_t num_descs; 181 uint32_t desc_size; 182 bool done_color; 183 void *base; 184 rte_iova_t base_pa; 185 }; 186 187 /** ionic_admin_ctx - Admin command context. 188 * @pending_work: Flag that indicates a completion. 189 * @cmd: Admin command (64B) to be copied to the queue. 190 * @comp: Admin completion (16B) copied from the queue. 191 */ 192 struct ionic_admin_ctx { 193 bool pending_work; 194 union ionic_adminq_cmd cmd; 195 union ionic_adminq_comp comp; 196 }; 197 198 struct ionic_lif; 199 struct ionic_adapter; 200 struct ionic_qcq; 201 202 void ionic_intr_init(struct ionic_dev *idev, struct ionic_intr_info *intr, 203 unsigned long index); 204 205 const char *ionic_opcode_to_str(enum ionic_cmd_opcode opcode); 206 207 int ionic_dev_setup(struct ionic_adapter *adapter); 208 209 void ionic_dev_cmd_go(struct ionic_dev *idev, union ionic_dev_cmd *cmd); 210 uint8_t ionic_dev_cmd_status(struct ionic_dev *idev); 211 bool ionic_dev_cmd_done(struct ionic_dev *idev); 212 void ionic_dev_cmd_comp(struct ionic_dev *idev, void *mem); 213 214 void ionic_dev_cmd_identify(struct ionic_dev *idev, uint8_t ver); 215 void ionic_dev_cmd_init(struct ionic_dev *idev); 216 void ionic_dev_cmd_reset(struct ionic_dev *idev); 217 218 void ionic_dev_cmd_port_identify(struct ionic_dev *idev); 219 void ionic_dev_cmd_port_init(struct ionic_dev *idev); 220 void ionic_dev_cmd_port_reset(struct ionic_dev *idev); 221 void ionic_dev_cmd_port_state(struct ionic_dev *idev, uint8_t state); 222 void ionic_dev_cmd_port_speed(struct ionic_dev *idev, uint32_t speed); 223 void ionic_dev_cmd_port_mtu(struct ionic_dev *idev, uint32_t mtu); 224 void ionic_dev_cmd_port_autoneg(struct ionic_dev *idev, uint8_t an_enable); 225 void ionic_dev_cmd_port_fec(struct ionic_dev *idev, uint8_t fec_type); 226 void ionic_dev_cmd_port_pause(struct ionic_dev *idev, uint8_t pause_type); 227 void ionic_dev_cmd_port_loopback(struct ionic_dev *idev, 228 uint8_t loopback_mode); 229 230 void ionic_dev_cmd_queue_identify(struct ionic_dev *idev, 231 uint16_t lif_type, uint8_t qtype, uint8_t qver); 232 233 void ionic_dev_cmd_lif_identify(struct ionic_dev *idev, uint8_t type, 234 uint8_t ver); 235 void ionic_dev_cmd_lif_init(struct ionic_dev *idev, rte_iova_t addr); 236 void ionic_dev_cmd_lif_reset(struct ionic_dev *idev); 237 238 void ionic_dev_cmd_adminq_init(struct ionic_dev *idev, struct ionic_qcq *qcq); 239 240 struct ionic_doorbell __iomem *ionic_db_map(struct ionic_lif *lif, 241 struct ionic_queue *q); 242 243 int ionic_cq_init(struct ionic_lif *lif, struct ionic_cq *cq, 244 uint32_t num_descs, size_t desc_size); 245 void ionic_cq_map(struct ionic_cq *cq, void *base, rte_iova_t base_pa); 246 void ionic_cq_bind(struct ionic_cq *cq, struct ionic_queue *q); 247 typedef bool (*ionic_cq_cb)(struct ionic_cq *cq, uint32_t cq_desc_index, 248 void *cb_arg); 249 uint32_t ionic_cq_service(struct ionic_cq *cq, uint32_t work_to_do, 250 ionic_cq_cb cb, void *cb_arg); 251 252 int ionic_q_init(struct ionic_lif *lif, struct ionic_dev *idev, 253 struct ionic_queue *q, uint32_t index, uint32_t num_descs, 254 size_t desc_size, size_t sg_desc_size); 255 void ionic_q_map(struct ionic_queue *q, void *base, rte_iova_t base_pa); 256 void ionic_q_sg_map(struct ionic_queue *q, void *base, rte_iova_t base_pa); 257 void ionic_q_post(struct ionic_queue *q, bool ring_doorbell, desc_cb cb, 258 void *cb_arg); 259 void ionic_q_service(struct ionic_queue *q, uint32_t cq_desc_index, 260 uint32_t stop_index, void *service_cb_arg); 261 262 static inline uint32_t 263 ionic_q_space_avail(struct ionic_queue *q) 264 { 265 uint32_t avail = q->tail_idx; 266 267 if (q->head_idx >= avail) 268 avail += q->num_descs - q->head_idx - 1; 269 else 270 avail -= q->head_idx + 1; 271 272 return avail; 273 } 274 275 static inline void 276 ionic_q_flush(struct ionic_queue *q) 277 { 278 uint64_t val = IONIC_DBELL_QID(q->hw_index) | q->head_idx; 279 280 rte_write64(rte_cpu_to_le_64(val), q->db); 281 } 282 283 int ionic_adminq_post(struct ionic_lif *lif, struct ionic_admin_ctx *ctx); 284 285 #endif /* _IONIC_DEV_H_ */ 286