drivers/net/ena/base/ena_plat_dpdk.h

   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_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 rte_atomic32_t ena_alloc_cnt;
 184
 185 #define ENA_MEM_ALLOC_COHERENT(dmadev, size, virt, phys, handle)        \
 186         do {                                                            \
 187                 const struct rte_memzone *mz = NULL;                    \
 188                 ENA_TOUCH(dmadev); ENA_TOUCH(handle);                   \
 189                 if (size > 0) {                                         \
 190                         char z_name[RTE_MEMZONE_NAMESIZE];              \
 191                         snprintf(z_name, sizeof(z_name),                \
 192                          "ena_alloc_%d",                                \
 193                          rte_atomic32_add_return(&ena_alloc_cnt, 1));   \
 194                         mz = rte_memzone_reserve(z_name, size,          \
 195                                         SOCKET_ID_ANY,                  \
 196                                         RTE_MEMZONE_IOVA_CONTIG);       \
 197                         handle = mz;                                    \
 198                 }                                                       \
 199                 if (mz == NULL) {                                       \
 200                         virt = NULL;                                    \
 201                         phys = 0;                                       \
 202                 } else {                                                \
 203                         memset(mz->addr, 0, size);                      \
 204                         virt = mz->addr;                                \
 205                         phys = mz->iova;                                \
 206                 }                                                       \
 207         } while (0)
 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(                                    \
 214         dmadev, size, virt, phys, mem_handle, node, dev_node)           \
 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(z_name, size, node,    \
 224                                 RTE_MEMZONE_IOVA_CONTIG);               \
 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
 237 #define ENA_MEM_ALLOC_NODE(dmadev, size, virt, node, dev_node) \
 238         do {                                                            \
 239                 ENA_TOUCH(dmadev); ENA_TOUCH(dev_node);                 \
 240                 virt = rte_zmalloc_socket(NULL, size, 0, node);         \
 241         } while (0)
 242
 243 #define ENA_MEM_ALLOC(dmadev, size) rte_zmalloc(NULL, size, 1)
 244 #define ENA_MEM_FREE(dmadev, ptr, size)                                 \
 245         ({ ENA_TOUCH(dmadev); ENA_TOUCH(size); rte_free(ptr); })
 246
 247 #define ENA_DB_SYNC(mem_handle) ((void)mem_handle)
 248
 249 #define ENA_REG_WRITE32(bus, value, reg)                                \
 250         ({ (void)(bus); rte_write32((value), (reg)); })
 251 #define ENA_REG_WRITE32_RELAXED(bus, value, reg)                        \
 252         ({ (void)(bus); rte_write32_relaxed((value), (reg)); })
 253 #define ENA_REG_READ32(bus, reg)                                        \
 254         ({ (void)(bus); rte_read32_relaxed((reg)); })
 255
 256 #define ATOMIC32_INC(i32_ptr) rte_atomic32_inc(i32_ptr)
 257 #define ATOMIC32_DEC(i32_ptr) rte_atomic32_dec(i32_ptr)
 258 #define ATOMIC32_SET(i32_ptr, val) rte_atomic32_set(i32_ptr, val)
 259 #define ATOMIC32_READ(i32_ptr) rte_atomic32_read(i32_ptr)
 260
 261 #define msleep(x) rte_delay_us(x * 1000)
 262 #define udelay(x) rte_delay_us(x)
 263
 264 #define dma_rmb() rmb()
 265
 266 #define MAX_ERRNO       4095
 267 #define IS_ERR(x) (((unsigned long)x) >= (unsigned long)-MAX_ERRNO)
 268 #define ERR_PTR(error) ((void *)(long)error)
 269 #define PTR_ERR(error) ((long)(void *)error)
 270 #define might_sleep()
 271
 272 #define prefetch(x) rte_prefetch0(x)
 273 #define prefetchw(x) prefetch(x)
 274
 275 #define lower_32_bits(x) ((uint32_t)(x))
 276 #define upper_32_bits(x) ((uint32_t)(((x) >> 16) >> 16))
 277
 278 #define ENA_TIME_EXPIRE(timeout)  (timeout < rte_get_timer_cycles())
 279 #define ENA_GET_SYSTEM_TIMEOUT(timeout_us)                              \
 280     (timeout_us * rte_get_timer_hz() / 1000000 + rte_get_timer_cycles())
 281 #define ENA_WAIT_EVENT_DESTROY(waitqueue) ((void)(waitqueue))
 282
 283 #ifndef READ_ONCE
 284 #define READ_ONCE(var) (*((volatile typeof(var) *)(&(var))))
 285 #endif
 286
 287 #define READ_ONCE8(var) READ_ONCE(var)
 288 #define READ_ONCE16(var) READ_ONCE(var)
 289 #define READ_ONCE32(var) READ_ONCE(var)
 290
 291 /* The size must be 8 byte align */
 292 #define ENA_MEMCPY_TO_DEVICE_64(dst, src, size)                         \
 293         do {                                                            \
 294                 int count, i;                                           \
 295                 uint64_t *to = (uint64_t *)(dst);                       \
 296                 const uint64_t *from = (const uint64_t *)(src);         \
 297                 count = (size) / 8;                                     \
 298                 for (i = 0; i < count; i++, from++, to++)               \
 299                         rte_write64_relaxed(*from, to);                 \
 300         } while(0)
 301
 302 #define DIV_ROUND_UP(n, d) (((n) + (d) - 1) / (d))
 303
 304 #define ENA_FFS(x) ffs(x)
 305
 306 void ena_rss_key_fill(void *key, size_t size);
 307
 308 #define ENA_RSS_FILL_KEY(key, size) ena_rss_key_fill(key, size)
 309
 310 #define ENA_INTR_INITIAL_TX_INTERVAL_USECS_PLAT 0
 311
 312 #define ENA_PRIu64 PRIu64
 313
 314 #include "ena_includes.h"
 315 #endif /* DPDK_ENA_COM_ENA_PLAT_DPDK_H_ */