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