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