1 /* SPDX-License-Identifier: BSD-3-Clause 2 * Copyright (c) 2015-2020 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 #define ENA_COM_EIO -EIO 55 56 #define ____cacheline_aligned __rte_cache_aligned 57 58 #define ENA_ABORT() abort() 59 60 #define ENA_MSLEEP(x) rte_delay_us_sleep(x * 1000) 61 #define ENA_USLEEP(x) rte_delay_us_sleep(x) 62 #define ENA_UDELAY(x) rte_delay_us_block(x) 63 64 #define ENA_TOUCH(x) ((void)(x)) 65 #define memcpy_toio memcpy 66 #define wmb rte_wmb 67 #define rmb rte_rmb 68 #define mb rte_mb 69 #define mmiowb rte_io_wmb 70 #define __iomem 71 72 #define US_PER_S 1000000 73 #define ENA_GET_SYSTEM_USECS() \ 74 (rte_get_timer_cycles() * US_PER_S / rte_get_timer_hz()) 75 76 extern int ena_logtype_com; 77 78 #define ENA_MAX_T(type, x, y) RTE_MAX((type)(x), (type)(y)) 79 #define ENA_MAX32(x, y) ENA_MAX_T(uint32_t, (x), (y)) 80 #define ENA_MAX16(x, y) ENA_MAX_T(uint16_t, (x), (y)) 81 #define ENA_MAX8(x, y) ENA_MAX_T(uint8_t, (x), (y)) 82 #define ENA_MIN_T(type, x, y) RTE_MIN((type)(x), (type)(y)) 83 #define ENA_MIN32(x, y) ENA_MIN_T(uint32_t, (x), (y)) 84 #define ENA_MIN16(x, y) ENA_MIN_T(uint16_t, (x), (y)) 85 #define ENA_MIN8(x, y) ENA_MIN_T(uint8_t, (x), (y)) 86 87 #define BITS_PER_LONG_LONG (__SIZEOF_LONG_LONG__ * 8) 88 #define U64_C(x) x ## ULL 89 #define BIT(nr) (1UL << (nr)) 90 #define BITS_PER_LONG (__SIZEOF_LONG__ * 8) 91 #define GENMASK(h, l) (((~0UL) << (l)) & (~0UL >> (BITS_PER_LONG - 1 - (h)))) 92 #define GENMASK_ULL(h, l) (((~0ULL) - (1ULL << (l)) + 1) & \ 93 (~0ULL >> (BITS_PER_LONG_LONG - 1 - (h)))) 94 95 #ifdef RTE_LIBRTE_ENA_COM_DEBUG 96 #define ena_trc_log(level, fmt, arg...) \ 97 rte_log(RTE_LOG_ ## level, ena_logtype_com, \ 98 "[ENA_COM: %s]" fmt, __func__, ##arg) 99 100 #define ena_trc_dbg(format, arg...) ena_trc_log(DEBUG, format, ##arg) 101 #define ena_trc_info(format, arg...) ena_trc_log(INFO, format, ##arg) 102 #define ena_trc_warn(format, arg...) ena_trc_log(WARNING, format, ##arg) 103 #define ena_trc_err(format, arg...) ena_trc_log(ERR, format, ##arg) 104 #else 105 #define ena_trc_dbg(format, arg...) do { } while (0) 106 #define ena_trc_info(format, arg...) do { } while (0) 107 #define ena_trc_warn(format, arg...) do { } while (0) 108 #define ena_trc_err(format, arg...) do { } while (0) 109 #endif /* RTE_LIBRTE_ENA_COM_DEBUG */ 110 111 #define ENA_WARN(cond, format, arg...) \ 112 do { \ 113 if (unlikely(cond)) { \ 114 ena_trc_err( \ 115 "Warn failed on %s:%s:%d:" format, \ 116 __FILE__, __func__, __LINE__, ##arg); \ 117 } \ 118 } while (0) 119 120 /* Spinlock related methods */ 121 #define ena_spinlock_t rte_spinlock_t 122 #define ENA_SPINLOCK_INIT(spinlock) rte_spinlock_init(&spinlock) 123 #define ENA_SPINLOCK_LOCK(spinlock, flags) \ 124 ({(void)flags; rte_spinlock_lock(&spinlock); }) 125 #define ENA_SPINLOCK_UNLOCK(spinlock, flags) \ 126 ({(void)flags; rte_spinlock_unlock(&(spinlock)); }) 127 #define ENA_SPINLOCK_DESTROY(spinlock) ((void)spinlock) 128 129 #define q_waitqueue_t \ 130 struct { \ 131 pthread_cond_t cond; \ 132 pthread_mutex_t mutex; \ 133 } 134 135 #define ena_wait_queue_t q_waitqueue_t 136 137 #define ENA_WAIT_EVENT_INIT(waitqueue) \ 138 do { \ 139 pthread_mutex_init(&(waitqueue).mutex, NULL); \ 140 pthread_cond_init(&(waitqueue).cond, NULL); \ 141 } while (0) 142 143 #define ENA_WAIT_EVENT_WAIT(waitevent, timeout) \ 144 do { \ 145 struct timespec wait; \ 146 struct timeval now; \ 147 unsigned long timeout_us; \ 148 gettimeofday(&now, NULL); \ 149 wait.tv_sec = now.tv_sec + timeout / 1000000UL; \ 150 timeout_us = timeout % 1000000UL; \ 151 wait.tv_nsec = (now.tv_usec + timeout_us) * 1000UL; \ 152 pthread_mutex_lock(&waitevent.mutex); \ 153 pthread_cond_timedwait(&waitevent.cond, \ 154 &waitevent.mutex, &wait); \ 155 pthread_mutex_unlock(&waitevent.mutex); \ 156 } while (0) 157 #define ENA_WAIT_EVENT_SIGNAL(waitevent) pthread_cond_signal(&waitevent.cond) 158 /* pthread condition doesn't need to be rearmed after usage */ 159 #define ENA_WAIT_EVENT_CLEAR(...) 160 #define ENA_WAIT_EVENT_DESTROY(waitqueue) ((void)(waitqueue)) 161 162 #define ena_wait_event_t ena_wait_queue_t 163 #define ENA_MIGHT_SLEEP() 164 165 #define ena_time_t uint64_t 166 #define ENA_TIME_EXPIRE(timeout) (timeout < rte_get_timer_cycles()) 167 #define ENA_GET_SYSTEM_TIMEOUT(timeout_us) \ 168 (timeout_us * rte_get_timer_hz() / 1000000 + rte_get_timer_cycles()) 169 170 /* 171 * Each rte_memzone should have unique name. 172 * To satisfy it, count number of allocations and add it to name. 173 */ 174 extern rte_atomic32_t ena_alloc_cnt; 175 176 #define ENA_MEM_ALLOC_COHERENT_ALIGNED( \ 177 dmadev, size, virt, phys, handle, alignment) \ 178 do { \ 179 const struct rte_memzone *mz = NULL; \ 180 ENA_TOUCH(dmadev); ENA_TOUCH(handle); \ 181 if (size > 0) { \ 182 char z_name[RTE_MEMZONE_NAMESIZE]; \ 183 snprintf(z_name, sizeof(z_name), \ 184 "ena_alloc_%d", \ 185 rte_atomic32_add_return(&ena_alloc_cnt, 1)); \ 186 mz = rte_memzone_reserve_aligned(z_name, size, \ 187 SOCKET_ID_ANY, \ 188 RTE_MEMZONE_IOVA_CONTIG, \ 189 alignment); \ 190 handle = mz; \ 191 } \ 192 if (mz == NULL) { \ 193 virt = NULL; \ 194 phys = 0; \ 195 } else { \ 196 memset(mz->addr, 0, size); \ 197 virt = mz->addr; \ 198 phys = mz->iova; \ 199 } \ 200 } while (0) 201 #define ENA_MEM_ALLOC_COHERENT(dmadev, size, virt, phys, handle) \ 202 ENA_MEM_ALLOC_COHERENT_ALIGNED( \ 203 dmadev, \ 204 size, \ 205 virt, \ 206 phys, \ 207 handle, \ 208 RTE_CACHE_LINE_SIZE) 209 #define ENA_MEM_FREE_COHERENT(dmadev, size, virt, phys, handle) \ 210 ({ ENA_TOUCH(size); ENA_TOUCH(phys); \ 211 ENA_TOUCH(dmadev); \ 212 rte_memzone_free(handle); }) 213 214 #define ENA_MEM_ALLOC_COHERENT_NODE_ALIGNED( \ 215 dmadev, size, virt, phys, mem_handle, node, dev_node, alignment) \ 216 do { \ 217 const struct rte_memzone *mz = NULL; \ 218 ENA_TOUCH(dmadev); ENA_TOUCH(dev_node); \ 219 if (size > 0) { \ 220 char z_name[RTE_MEMZONE_NAMESIZE]; \ 221 snprintf(z_name, sizeof(z_name), \ 222 "ena_alloc_%d", \ 223 rte_atomic32_add_return(&ena_alloc_cnt, 1)); \ 224 mz = rte_memzone_reserve_aligned(z_name, size, node, \ 225 RTE_MEMZONE_IOVA_CONTIG, alignment); \ 226 mem_handle = mz; \ 227 } \ 228 if (mz == NULL) { \ 229 virt = NULL; \ 230 phys = 0; \ 231 } else { \ 232 memset(mz->addr, 0, size); \ 233 virt = mz->addr; \ 234 phys = mz->iova; \ 235 } \ 236 } while (0) 237 #define ENA_MEM_ALLOC_COHERENT_NODE( \ 238 dmadev, size, virt, phys, mem_handle, node, dev_node) \ 239 ENA_MEM_ALLOC_COHERENT_NODE_ALIGNED( \ 240 dmadev, \ 241 size, \ 242 virt, \ 243 phys, \ 244 mem_handle, \ 245 node, \ 246 dev_node, \ 247 RTE_CACHE_LINE_SIZE) 248 #define ENA_MEM_ALLOC_NODE(dmadev, size, virt, node, dev_node) \ 249 do { \ 250 ENA_TOUCH(dmadev); ENA_TOUCH(dev_node); \ 251 virt = rte_zmalloc_socket(NULL, size, 0, node); \ 252 } while (0) 253 254 #define ENA_MEM_ALLOC(dmadev, size) rte_zmalloc(NULL, size, 1) 255 #define ENA_MEM_FREE(dmadev, ptr, size) \ 256 ({ ENA_TOUCH(dmadev); ENA_TOUCH(size); rte_free(ptr); }) 257 258 #define ENA_DB_SYNC(mem_handle) ((void)mem_handle) 259 260 #define ENA_REG_WRITE32(bus, value, reg) \ 261 ({ (void)(bus); rte_write32((value), (reg)); }) 262 #define ENA_REG_WRITE32_RELAXED(bus, value, reg) \ 263 ({ (void)(bus); rte_write32_relaxed((value), (reg)); }) 264 #define ENA_REG_READ32(bus, reg) \ 265 ({ (void)(bus); rte_read32_relaxed((reg)); }) 266 267 #define ATOMIC32_INC(i32_ptr) rte_atomic32_inc(i32_ptr) 268 #define ATOMIC32_DEC(i32_ptr) rte_atomic32_dec(i32_ptr) 269 #define ATOMIC32_SET(i32_ptr, val) rte_atomic32_set(i32_ptr, val) 270 #define ATOMIC32_READ(i32_ptr) rte_atomic32_read(i32_ptr) 271 272 #define msleep(x) rte_delay_us(x * 1000) 273 #define udelay(x) rte_delay_us(x) 274 275 #define dma_rmb() rmb() 276 277 #define MAX_ERRNO 4095 278 #define IS_ERR(x) (((unsigned long)x) >= (unsigned long)-MAX_ERRNO) 279 #define ERR_PTR(error) ((void *)(long)error) 280 #define PTR_ERR(error) ((long)(void *)error) 281 #define might_sleep() 282 283 #define prefetch(x) rte_prefetch0(x) 284 #define prefetchw(x) prefetch(x) 285 286 #define lower_32_bits(x) ((uint32_t)(x)) 287 #define upper_32_bits(x) ((uint32_t)(((x) >> 16) >> 16)) 288 289 #define ENA_TIME_EXPIRE(timeout) (timeout < rte_get_timer_cycles()) 290 #define ENA_GET_SYSTEM_TIMEOUT(timeout_us) \ 291 (timeout_us * rte_get_timer_hz() / 1000000 + rte_get_timer_cycles()) 292 #define ENA_WAIT_EVENT_DESTROY(waitqueue) ((void)(waitqueue)) 293 294 #ifndef READ_ONCE 295 #define READ_ONCE(var) (*((volatile typeof(var) *)(&(var)))) 296 #endif 297 298 #define READ_ONCE8(var) READ_ONCE(var) 299 #define READ_ONCE16(var) READ_ONCE(var) 300 #define READ_ONCE32(var) READ_ONCE(var) 301 302 /* The size must be 8 byte align */ 303 #define ENA_MEMCPY_TO_DEVICE_64(dst, src, size) \ 304 do { \ 305 int count, i; \ 306 uint64_t *to = (uint64_t *)(dst); \ 307 const uint64_t *from = (const uint64_t *)(src); \ 308 count = (size) / 8; \ 309 for (i = 0; i < count; i++, from++, to++) \ 310 rte_write64_relaxed(*from, to); \ 311 } while(0) 312 313 #define DIV_ROUND_UP(n, d) (((n) + (d) - 1) / (d)) 314 315 #define ENA_FFS(x) ffs(x) 316 317 void ena_rss_key_fill(void *key, size_t size); 318 319 #define ENA_RSS_FILL_KEY(key, size) ena_rss_key_fill(key, size) 320 321 #define ENA_INTR_INITIAL_TX_INTERVAL_USECS_PLAT 0 322 323 #define ENA_PRIu64 PRIu64 324 325 #include "ena_includes.h" 326 #endif /* DPDK_ENA_COM_ENA_PLAT_DPDK_H_ */ 327