1 /* SPDX-License-Identifier: BSD-3-Clause 2 * Copyright (c) 2015-2019 Amazon.com, Inc. or its affiliates. 3 * All rights reserved. 4 */ 5 6 #ifndef DPDK_ENA_COM_ENA_PLAT_DPDK_H_ 7 #define DPDK_ENA_COM_ENA_PLAT_DPDK_H_ 8 9 #include <stdbool.h> 10 #include <stdlib.h> 11 #include <pthread.h> 12 #include <stdint.h> 13 #include <inttypes.h> 14 #include <string.h> 15 #include <errno.h> 16 17 #include <rte_atomic.h> 18 #include <rte_branch_prediction.h> 19 #include <rte_cycles.h> 20 #include <rte_io.h> 21 #include <rte_log.h> 22 #include <rte_malloc.h> 23 #include <rte_memzone.h> 24 #include <rte_prefetch.h> 25 #include <rte_spinlock.h> 26 27 #include <sys/time.h> 28 29 typedef uint64_t u64; 30 typedef uint32_t u32; 31 typedef uint16_t u16; 32 typedef uint8_t u8; 33 34 typedef uint64_t dma_addr_t; 35 #ifndef ETIME 36 #define ETIME ETIMEDOUT 37 #endif 38 39 #define ena_atomic32_t rte_atomic32_t 40 #define ena_mem_handle_t const struct rte_memzone * 41 42 #define SZ_256 (256U) 43 #define SZ_4K (4096U) 44 45 #define ENA_COM_OK 0 46 #define ENA_COM_NO_MEM -ENOMEM 47 #define ENA_COM_INVAL -EINVAL 48 #define ENA_COM_NO_SPACE -ENOSPC 49 #define ENA_COM_NO_DEVICE -ENODEV 50 #define ENA_COM_TIMER_EXPIRED -ETIME 51 #define ENA_COM_FAULT -EFAULT 52 #define ENA_COM_TRY_AGAIN -EAGAIN 53 #define ENA_COM_UNSUPPORTED -EOPNOTSUPP 54 55 #define ____cacheline_aligned __rte_cache_aligned 56 57 #define ENA_ABORT() abort() 58 59 #define ENA_MSLEEP(x) rte_delay_ms(x) 60 #define ENA_UDELAY(x) rte_delay_us(x) 61 62 #define ENA_TOUCH(x) ((void)(x)) 63 #define memcpy_toio memcpy 64 #define wmb rte_wmb 65 #define rmb rte_rmb 66 #define mb rte_mb 67 #define mmiowb rte_io_wmb 68 #define __iomem 69 70 #define US_PER_S 1000000 71 #define ENA_GET_SYSTEM_USECS() \ 72 (rte_get_timer_cycles() * US_PER_S / rte_get_timer_hz()) 73 74 extern int ena_logtype_com; 75 #if RTE_LOG_DP_LEVEL >= RTE_LOG_DEBUG 76 #define ENA_ASSERT(cond, format, arg...) \ 77 do { \ 78 if (unlikely(!(cond))) { \ 79 rte_log(RTE_LOGTYPE_ERR, ena_logtype_com, \ 80 format, ##arg); \ 81 rte_panic("line %d\tassert \"" #cond "\"" \ 82 "failed\n", __LINE__); \ 83 } \ 84 } while (0) 85 #else 86 #define ENA_ASSERT(cond, format, arg...) do {} while (0) 87 #endif 88 89 #define ENA_MAX32(x, y) RTE_MAX((x), (y)) 90 #define ENA_MAX16(x, y) RTE_MAX((x), (y)) 91 #define ENA_MAX8(x, y) RTE_MAX((x), (y)) 92 #define ENA_MIN32(x, y) RTE_MIN((x), (y)) 93 #define ENA_MIN16(x, y) RTE_MIN((x), (y)) 94 #define ENA_MIN8(x, y) RTE_MIN((x), (y)) 95 96 #define BITS_PER_LONG_LONG (__SIZEOF_LONG_LONG__ * 8) 97 #define U64_C(x) x ## ULL 98 #define BIT(nr) (1UL << (nr)) 99 #define BITS_PER_LONG (__SIZEOF_LONG__ * 8) 100 #define GENMASK(h, l) (((~0UL) << (l)) & (~0UL >> (BITS_PER_LONG - 1 - (h)))) 101 #define GENMASK_ULL(h, l) (((~0ULL) - (1ULL << (l)) + 1) & \ 102 (~0ULL >> (BITS_PER_LONG_LONG - 1 - (h)))) 103 104 #ifdef RTE_LIBRTE_ENA_COM_DEBUG 105 #define ena_trc_log(level, fmt, arg...) \ 106 rte_log(RTE_LOG_ ## level, ena_logtype_com, \ 107 "[ENA_COM: %s]" fmt, __func__, ##arg) 108 109 #define ena_trc_dbg(format, arg...) ena_trc_log(DEBUG, format, ##arg) 110 #define ena_trc_info(format, arg...) ena_trc_log(INFO, format, ##arg) 111 #define ena_trc_warn(format, arg...) ena_trc_log(WARNING, format, ##arg) 112 #define ena_trc_err(format, arg...) ena_trc_log(ERR, format, ##arg) 113 #else 114 #define ena_trc_dbg(format, arg...) do { } while (0) 115 #define ena_trc_info(format, arg...) do { } while (0) 116 #define ena_trc_warn(format, arg...) do { } while (0) 117 #define ena_trc_err(format, arg...) do { } while (0) 118 #endif /* RTE_LIBRTE_ENA_COM_DEBUG */ 119 120 #define ENA_WARN(cond, format, arg...) \ 121 do { \ 122 if (unlikely(cond)) { \ 123 ena_trc_err( \ 124 "Warn failed on %s:%s:%d:" format, \ 125 __FILE__, __func__, __LINE__, ##arg); \ 126 } \ 127 } while (0) 128 129 /* Spinlock related methods */ 130 #define ena_spinlock_t rte_spinlock_t 131 #define ENA_SPINLOCK_INIT(spinlock) rte_spinlock_init(&spinlock) 132 #define ENA_SPINLOCK_LOCK(spinlock, flags) \ 133 ({(void)flags; rte_spinlock_lock(&spinlock); }) 134 #define ENA_SPINLOCK_UNLOCK(spinlock, flags) \ 135 ({(void)flags; rte_spinlock_unlock(&(spinlock)); }) 136 #define ENA_SPINLOCK_DESTROY(spinlock) ((void)spinlock) 137 138 #define q_waitqueue_t \ 139 struct { \ 140 pthread_cond_t cond; \ 141 pthread_mutex_t mutex; \ 142 } 143 144 #define ena_wait_queue_t q_waitqueue_t 145 146 #define ENA_WAIT_EVENT_INIT(waitqueue) \ 147 do { \ 148 pthread_mutex_init(&(waitqueue).mutex, NULL); \ 149 pthread_cond_init(&(waitqueue).cond, NULL); \ 150 } while (0) 151 152 #define ENA_WAIT_EVENT_WAIT(waitevent, timeout) \ 153 do { \ 154 struct timespec wait; \ 155 struct timeval now; \ 156 unsigned long timeout_us; \ 157 gettimeofday(&now, NULL); \ 158 wait.tv_sec = now.tv_sec + timeout / 1000000UL; \ 159 timeout_us = timeout % 1000000UL; \ 160 wait.tv_nsec = (now.tv_usec + timeout_us) * 1000UL; \ 161 pthread_mutex_lock(&waitevent.mutex); \ 162 pthread_cond_timedwait(&waitevent.cond, \ 163 &waitevent.mutex, &wait); \ 164 pthread_mutex_unlock(&waitevent.mutex); \ 165 } while (0) 166 #define ENA_WAIT_EVENT_SIGNAL(waitevent) pthread_cond_signal(&waitevent.cond) 167 /* pthread condition doesn't need to be rearmed after usage */ 168 #define ENA_WAIT_EVENT_CLEAR(...) 169 #define ENA_WAIT_EVENT_DESTROY(waitqueue) ((void)(waitqueue)) 170 171 #define ena_wait_event_t ena_wait_queue_t 172 #define ENA_MIGHT_SLEEP() 173 174 #define ena_time_t uint64_t 175 #define ENA_TIME_EXPIRE(timeout) (timeout < rte_get_timer_cycles()) 176 #define ENA_GET_SYSTEM_TIMEOUT(timeout_us) \ 177 (timeout_us * rte_get_timer_hz() / 1000000 + rte_get_timer_cycles()) 178 179 /* 180 * Each rte_memzone should have unique name. 181 * To satisfy it, count number of allocations and add it to name. 182 */ 183 extern uint32_t ena_alloc_cnt; 184 185 #define ENA_MEM_ALLOC_COHERENT(dmadev, size, virt, phys, handle) \ 186 do { \ 187 const struct rte_memzone *mz; \ 188 char z_name[RTE_MEMZONE_NAMESIZE]; \ 189 ENA_TOUCH(dmadev); ENA_TOUCH(handle); \ 190 snprintf(z_name, sizeof(z_name), \ 191 "ena_alloc_%d", ena_alloc_cnt++); \ 192 mz = rte_memzone_reserve(z_name, size, SOCKET_ID_ANY, \ 193 RTE_MEMZONE_IOVA_CONTIG); \ 194 handle = mz; \ 195 if (mz == NULL) { \ 196 virt = NULL; \ 197 phys = 0; \ 198 } else { \ 199 memset(mz->addr, 0, size); \ 200 virt = mz->addr; \ 201 phys = mz->iova; \ 202 } \ 203 } while (0) 204 #define ENA_MEM_FREE_COHERENT(dmadev, size, virt, phys, handle) \ 205 ({ ENA_TOUCH(size); ENA_TOUCH(phys); \ 206 ENA_TOUCH(dmadev); \ 207 rte_memzone_free(handle); }) 208 209 #define ENA_MEM_ALLOC_COHERENT_NODE( \ 210 dmadev, size, virt, phys, mem_handle, node, dev_node) \ 211 do { \ 212 const struct rte_memzone *mz; \ 213 char z_name[RTE_MEMZONE_NAMESIZE]; \ 214 ENA_TOUCH(dmadev); ENA_TOUCH(dev_node); \ 215 snprintf(z_name, sizeof(z_name), \ 216 "ena_alloc_%d", ena_alloc_cnt++); \ 217 mz = rte_memzone_reserve(z_name, size, node, \ 218 RTE_MEMZONE_IOVA_CONTIG); \ 219 mem_handle = mz; \ 220 if (mz == NULL) { \ 221 virt = NULL; \ 222 phys = 0; \ 223 } else { \ 224 memset(mz->addr, 0, size); \ 225 virt = mz->addr; \ 226 phys = mz->iova; \ 227 } \ 228 } while (0) 229 230 #define ENA_MEM_ALLOC_NODE(dmadev, size, virt, node, dev_node) \ 231 do { \ 232 ENA_TOUCH(dmadev); ENA_TOUCH(dev_node); \ 233 virt = rte_zmalloc_socket(NULL, size, 0, node); \ 234 } while (0) 235 236 #define ENA_MEM_ALLOC(dmadev, size) rte_zmalloc(NULL, size, 1) 237 #define ENA_MEM_FREE(dmadev, ptr, size) \ 238 ({ ENA_TOUCH(dmadev); ENA_TOUCH(size); rte_free(ptr); }) 239 240 #define ENA_DB_SYNC(mem_handle) ((void)mem_handle) 241 242 #define ENA_REG_WRITE32(bus, value, reg) \ 243 ({ (void)(bus); rte_write32((value), (reg)); }) 244 #define ENA_REG_WRITE32_RELAXED(bus, value, reg) \ 245 ({ (void)(bus); rte_write32_relaxed((value), (reg)); }) 246 #define ENA_REG_READ32(bus, reg) \ 247 ({ (void)(bus); rte_read32_relaxed((reg)); }) 248 249 #define ATOMIC32_INC(i32_ptr) rte_atomic32_inc(i32_ptr) 250 #define ATOMIC32_DEC(i32_ptr) rte_atomic32_dec(i32_ptr) 251 #define ATOMIC32_SET(i32_ptr, val) rte_atomic32_set(i32_ptr, val) 252 #define ATOMIC32_READ(i32_ptr) rte_atomic32_read(i32_ptr) 253 254 #define msleep(x) rte_delay_us(x * 1000) 255 #define udelay(x) rte_delay_us(x) 256 257 #define dma_rmb() rmb() 258 259 #define MAX_ERRNO 4095 260 #define IS_ERR(x) (((unsigned long)x) >= (unsigned long)-MAX_ERRNO) 261 #define ERR_PTR(error) ((void *)(long)error) 262 #define PTR_ERR(error) ((long)(void *)error) 263 #define might_sleep() 264 265 #define prefetch(x) rte_prefetch0(x) 266 #define prefetchw(x) prefetch(x) 267 268 #define lower_32_bits(x) ((uint32_t)(x)) 269 #define upper_32_bits(x) ((uint32_t)(((x) >> 16) >> 16)) 270 271 #define ENA_TIME_EXPIRE(timeout) (timeout < rte_get_timer_cycles()) 272 #define ENA_GET_SYSTEM_TIMEOUT(timeout_us) \ 273 (timeout_us * rte_get_timer_hz() / 1000000 + rte_get_timer_cycles()) 274 #define ENA_WAIT_EVENT_DESTROY(waitqueue) ((void)(waitqueue)) 275 276 #ifndef READ_ONCE 277 #define READ_ONCE(var) (*((volatile typeof(var) *)(&(var)))) 278 #endif 279 280 #define READ_ONCE8(var) READ_ONCE(var) 281 #define READ_ONCE16(var) READ_ONCE(var) 282 #define READ_ONCE32(var) READ_ONCE(var) 283 284 /* The size must be 8 byte align */ 285 #define ENA_MEMCPY_TO_DEVICE_64(dst, src, size) \ 286 do { \ 287 int count, i; \ 288 uint64_t *to = (uint64_t *)(dst); \ 289 const uint64_t *from = (const uint64_t *)(src); \ 290 count = (size) / 8; \ 291 for (i = 0; i < count; i++, from++, to++) \ 292 rte_write64_relaxed(*from, to); \ 293 } while(0) 294 295 #define DIV_ROUND_UP(n, d) (((n) + (d) - 1) / (d)) 296 297 #include "ena_includes.h" 298 299 #endif /* DPDK_ENA_COM_ENA_PLAT_DPDK_H_ */ 300