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