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 <ethdev_driver.h> 18 #include <rte_atomic.h> 19 #include <rte_branch_prediction.h> 20 #include <rte_cycles.h> 21 #include <rte_io.h> 22 #include <rte_log.h> 23 #include <rte_malloc.h> 24 #include <rte_memzone.h> 25 #include <rte_prefetch.h> 26 #include <rte_spinlock.h> 27 28 #include <sys/time.h> 29 #include <rte_memcpy.h> 30 31 typedef uint64_t u64; 32 typedef uint32_t u32; 33 typedef uint16_t u16; 34 typedef uint8_t u8; 35 36 typedef struct rte_eth_dev ena_netdev; 37 typedef uint64_t dma_addr_t; 38 39 #ifndef ETIME 40 #define ETIME ETIMEDOUT 41 #endif 42 43 #define ENA_PRIu64 PRIu64 44 #define ena_atomic32_t rte_atomic32_t 45 #define ena_mem_handle_t const struct rte_memzone * 46 47 #define SZ_256 (256U) 48 #define SZ_4K (4096U) 49 50 #define ENA_COM_OK 0 51 #define ENA_COM_NO_MEM -ENOMEM 52 #define ENA_COM_INVAL -EINVAL 53 #define ENA_COM_NO_SPACE -ENOSPC 54 #define ENA_COM_NO_DEVICE -ENODEV 55 #define ENA_COM_TIMER_EXPIRED -ETIME 56 #define ENA_COM_FAULT -EFAULT 57 #define ENA_COM_TRY_AGAIN -EAGAIN 58 #define ENA_COM_UNSUPPORTED -EOPNOTSUPP 59 #define ENA_COM_EIO -EIO 60 61 #define ____cacheline_aligned __rte_cache_aligned 62 63 #define ENA_ABORT() abort() 64 65 #define ENA_MSLEEP(x) rte_delay_us_sleep(x * 1000) 66 #define ENA_USLEEP(x) rte_delay_us_sleep(x) 67 #define ENA_UDELAY(x) rte_delay_us_block(x) 68 69 #define ENA_TOUCH(x) ((void)(x)) 70 /* Redefine memcpy with caution: rte_memcpy can be simply aliased to memcpy, so 71 * make the redefinition only if it's safe (and beneficial) to do so. 72 */ 73 #if defined(RTE_ARCH_X86) || defined(RTE_ARCH_ARM64_MEMCPY) || \ 74 defined(RTE_ARCH_ARM_NEON_MEMCPY) 75 #undef memcpy 76 #define memcpy rte_memcpy 77 #endif 78 #define wmb rte_wmb 79 #define rmb rte_rmb 80 #define mb rte_mb 81 #define mmiowb rte_io_wmb 82 #define __iomem 83 84 #ifndef READ_ONCE 85 #define READ_ONCE(var) (*((volatile typeof(var) *)(&(var)))) 86 #endif 87 88 #define READ_ONCE8(var) READ_ONCE(var) 89 #define READ_ONCE16(var) READ_ONCE(var) 90 #define READ_ONCE32(var) READ_ONCE(var) 91 92 #define US_PER_S 1000000 93 #define ENA_GET_SYSTEM_USECS() \ 94 (rte_get_timer_cycles() * US_PER_S / rte_get_timer_hz()) 95 96 extern int ena_logtype_com; 97 98 #define ENA_MAX_T(type, x, y) RTE_MAX((type)(x), (type)(y)) 99 #define ENA_MAX32(x, y) ENA_MAX_T(uint32_t, (x), (y)) 100 #define ENA_MAX16(x, y) ENA_MAX_T(uint16_t, (x), (y)) 101 #define ENA_MAX8(x, y) ENA_MAX_T(uint8_t, (x), (y)) 102 #define ENA_MIN_T(type, x, y) RTE_MIN((type)(x), (type)(y)) 103 #define ENA_MIN32(x, y) ENA_MIN_T(uint32_t, (x), (y)) 104 #define ENA_MIN16(x, y) ENA_MIN_T(uint16_t, (x), (y)) 105 #define ENA_MIN8(x, y) ENA_MIN_T(uint8_t, (x), (y)) 106 107 #define BITS_PER_LONG_LONG (__SIZEOF_LONG_LONG__ * 8) 108 #define U64_C(x) x ## ULL 109 #define BIT(nr) (1UL << (nr)) 110 #define BITS_PER_LONG (__SIZEOF_LONG__ * 8) 111 #define GENMASK(h, l) (((~0UL) << (l)) & (~0UL >> (BITS_PER_LONG - 1 - (h)))) 112 #define GENMASK_ULL(h, l) (((~0ULL) - (1ULL << (l)) + 1) & \ 113 (~0ULL >> (BITS_PER_LONG_LONG - 1 - (h)))) 114 115 #define ena_trc_log(dev, level, fmt, arg...) \ 116 ( \ 117 ENA_TOUCH(dev), \ 118 rte_log(RTE_LOG_ ## level, ena_logtype_com, \ 119 "[ENA_COM: %s]" fmt, __func__, ##arg) \ 120 ) 121 122 #define ena_trc_dbg(dev, format, arg...) ena_trc_log(dev, DEBUG, format, ##arg) 123 #define ena_trc_info(dev, format, arg...) ena_trc_log(dev, INFO, format, ##arg) 124 #define ena_trc_warn(dev, format, arg...) \ 125 ena_trc_log(dev, WARNING, format, ##arg) 126 #define ena_trc_err(dev, format, arg...) ena_trc_log(dev, ERR, format, ##arg) 127 128 #define ENA_WARN(cond, dev, format, arg...) \ 129 do { \ 130 if (unlikely(cond)) { \ 131 ena_trc_err(dev, \ 132 "Warn failed on %s:%s:%d:" format, \ 133 __FILE__, __func__, __LINE__, ##arg); \ 134 } \ 135 } while (0) 136 137 /* Spinlock related methods */ 138 #define ena_spinlock_t rte_spinlock_t 139 #define ENA_SPINLOCK_INIT(spinlock) rte_spinlock_init(&(spinlock)) 140 #define ENA_SPINLOCK_LOCK(spinlock, flags) \ 141 ({(void)flags; rte_spinlock_lock(&(spinlock)); }) 142 #define ENA_SPINLOCK_UNLOCK(spinlock, flags) \ 143 ({(void)flags; rte_spinlock_unlock(&(spinlock)); }) 144 #define ENA_SPINLOCK_DESTROY(spinlock) ((void)(spinlock)) 145 146 typedef struct { 147 pthread_cond_t cond; 148 pthread_mutex_t mutex; 149 uint8_t flag; 150 } ena_wait_event_t; 151 152 #define ENA_WAIT_EVENT_INIT(waitevent) \ 153 do { \ 154 ena_wait_event_t *_we = &(waitevent); \ 155 pthread_mutex_init(&_we->mutex, NULL); \ 156 pthread_cond_init(&_we->cond, NULL); \ 157 _we->flag = 0; \ 158 } while (0) 159 160 #define ENA_WAIT_EVENT_WAIT(waitevent, timeout) \ 161 do { \ 162 ena_wait_event_t *_we = &(waitevent); \ 163 typeof(timeout) _tmo = (timeout); \ 164 int ret = 0; \ 165 struct timespec wait; \ 166 struct timeval now; \ 167 unsigned long timeout_us; \ 168 gettimeofday(&now, NULL); \ 169 wait.tv_sec = now.tv_sec + _tmo / 1000000UL; \ 170 timeout_us = _tmo % 1000000UL; \ 171 wait.tv_nsec = (now.tv_usec + timeout_us) * 1000UL; \ 172 pthread_mutex_lock(&_we->mutex); \ 173 while (ret == 0 && !_we->flag) { \ 174 ret = pthread_cond_timedwait(&_we->cond, \ 175 &_we->mutex, &wait); \ 176 } \ 177 /* Asserts only if not working on ena_wait_event_t */ \ 178 if (unlikely(ret != 0 && ret != ETIMEDOUT)) \ 179 ena_trc_err(NULL, \ 180 "Invalid wait event. pthread ret: %d\n", ret); \ 181 else if (unlikely(ret == ETIMEDOUT)) \ 182 ena_trc_err(NULL, \ 183 "Timeout waiting for " #waitevent "\n"); \ 184 _we->flag = 0; \ 185 pthread_mutex_unlock(&_we->mutex); \ 186 } while (0) 187 #define ENA_WAIT_EVENT_SIGNAL(waitevent) \ 188 do { \ 189 ena_wait_event_t *_we = &(waitevent); \ 190 pthread_mutex_lock(&_we->mutex); \ 191 _we->flag = 1; \ 192 pthread_cond_signal(&_we->cond); \ 193 pthread_mutex_unlock(&_we->mutex); \ 194 } while (0) 195 /* pthread condition doesn't need to be rearmed after usage */ 196 #define ENA_WAIT_EVENT_CLEAR(...) 197 #define ENA_WAIT_EVENT_DESTROY(waitevent) ((void)(waitevent)) 198 199 #define ENA_MIGHT_SLEEP() 200 201 #define ena_time_t uint64_t 202 #define ENA_TIME_EXPIRE(timeout) (timeout < rte_get_timer_cycles()) 203 #define ENA_GET_SYSTEM_TIMEOUT(timeout_us) \ 204 ((timeout_us) * rte_get_timer_hz() / 1000000 + rte_get_timer_cycles()) 205 206 const struct rte_memzone * 207 ena_mem_alloc_coherent(struct rte_eth_dev_data *data, size_t size, 208 int socket_id, unsigned int alignment, void **virt_addr, 209 dma_addr_t *phys_addr); 210 211 #define ENA_MEM_ALLOC_COHERENT_ALIGNED( \ 212 dmadev, size, virt, phys, mem_handle, alignment) \ 213 do { \ 214 void *virt_addr; \ 215 dma_addr_t phys_addr; \ 216 (mem_handle) = ena_mem_alloc_coherent((dmadev), (size), \ 217 SOCKET_ID_ANY, (alignment), &virt_addr, &phys_addr); \ 218 (virt) = virt_addr; \ 219 (phys) = phys_addr; \ 220 } while (0) 221 #define ENA_MEM_ALLOC_COHERENT(dmadev, size, virt, phys, mem_handle) \ 222 ENA_MEM_ALLOC_COHERENT_ALIGNED(dmadev, size, virt, phys, \ 223 mem_handle, RTE_CACHE_LINE_SIZE) 224 #define ENA_MEM_FREE_COHERENT(dmadev, size, virt, phys, mem_handle) \ 225 ({ ENA_TOUCH(size); ENA_TOUCH(phys); ENA_TOUCH(dmadev); \ 226 rte_memzone_free(mem_handle); }) 227 228 #define ENA_MEM_ALLOC_COHERENT_NODE_ALIGNED( \ 229 dmadev, size, virt, phys, mem_handle, node, dev_node, alignment) \ 230 do { \ 231 void *virt_addr; \ 232 dma_addr_t phys_addr; \ 233 ENA_TOUCH(dev_node); \ 234 (mem_handle) = ena_mem_alloc_coherent((dmadev), (size), \ 235 (node), (alignment), &virt_addr, &phys_addr); \ 236 (virt) = virt_addr; \ 237 (phys) = phys_addr; \ 238 } while (0) 239 #define ENA_MEM_ALLOC_COHERENT_NODE( \ 240 dmadev, size, virt, phys, mem_handle, node, dev_node) \ 241 ENA_MEM_ALLOC_COHERENT_NODE_ALIGNED(dmadev, size, virt, phys, \ 242 mem_handle, node, dev_node, RTE_CACHE_LINE_SIZE) 243 #define ENA_MEM_ALLOC_NODE(dmadev, size, virt, node, dev_node) \ 244 do { \ 245 ENA_TOUCH(dmadev); ENA_TOUCH(dev_node); \ 246 virt = rte_zmalloc_socket(NULL, size, 0, node); \ 247 } while (0) 248 249 #define ENA_MEM_ALLOC(dmadev, size) rte_zmalloc(NULL, size, 1) 250 #define ENA_MEM_FREE(dmadev, ptr, size) \ 251 ({ ENA_TOUCH(dmadev); ENA_TOUCH(size); rte_free(ptr); }) 252 253 #define ENA_DB_SYNC(mem_handle) ((void)mem_handle) 254 255 #define ENA_REG_WRITE32(bus, value, reg) \ 256 ({ (void)(bus); rte_write32((value), (reg)); }) 257 #define ENA_REG_WRITE32_RELAXED(bus, value, reg) \ 258 ({ (void)(bus); rte_write32_relaxed((value), (reg)); }) 259 #define ENA_REG_READ32(bus, reg) \ 260 ({ (void)(bus); rte_read32_relaxed((reg)); }) 261 262 #define ATOMIC32_INC(i32_ptr) rte_atomic32_inc(i32_ptr) 263 #define ATOMIC32_DEC(i32_ptr) rte_atomic32_dec(i32_ptr) 264 #define ATOMIC32_SET(i32_ptr, val) rte_atomic32_set(i32_ptr, val) 265 #define ATOMIC32_READ(i32_ptr) rte_atomic32_read(i32_ptr) 266 267 #define msleep(x) rte_delay_us(x * 1000) 268 #define udelay(x) rte_delay_us(x) 269 270 #define dma_rmb() rmb() 271 272 #define MAX_ERRNO 4095 273 #define IS_ERR(x) (((unsigned long)x) >= (unsigned long)-MAX_ERRNO) 274 #define ERR_PTR(error) ((void *)(long)error) 275 #define PTR_ERR(error) ((long)(void *)error) 276 #define might_sleep() 277 278 #define prefetch(x) rte_prefetch0(x) 279 #define prefetchw(x) rte_prefetch0_write(x) 280 281 #define lower_32_bits(x) ((uint32_t)(x)) 282 #define upper_32_bits(x) ((uint32_t)(((x) >> 16) >> 16)) 283 284 #define ENA_TIME_EXPIRE(timeout) (timeout < rte_get_timer_cycles()) 285 #define ENA_GET_SYSTEM_TIMEOUT(timeout_us) \ 286 ((timeout_us) * rte_get_timer_hz() / 1000000 + rte_get_timer_cycles()) 287 #define ENA_WAIT_EVENTS_DESTROY(admin_queue) ((void)(admin_queue)) 288 289 /* The size must be 8 byte align */ 290 #define ENA_MEMCPY_TO_DEVICE_64(dst, src, size) \ 291 do { \ 292 int count, i; \ 293 uint64_t *to = (uint64_t *)(dst); \ 294 const uint64_t *from = (const uint64_t *)(src); \ 295 count = (size) / 8; \ 296 for (i = 0; i < count; i++, from++, to++) \ 297 rte_write64_relaxed(*from, to); \ 298 } while(0) 299 300 #define DIV_ROUND_UP(n, d) (((n) + (d) - 1) / (d)) 301 302 #define ENA_FFS(x) ffs(x) 303 304 void ena_rss_key_fill(void *key, size_t size); 305 306 #define ENA_RSS_FILL_KEY(key, size) ena_rss_key_fill(key, size) 307 308 #define ENA_INTR_INITIAL_TX_INTERVAL_USECS_PLAT 0 309 310 #include "ena_includes.h" 311 #endif /* DPDK_ENA_COM_ENA_PLAT_DPDK_H_ */ 312