ceph/src/dpdk/drivers/net/cxgbe/cxgbe_compat.h

   1 /*-
   2  *   BSD LICENSE
   3  *
   4  *   Copyright(c) 2014-2015 Chelsio Communications.
   5  *   All rights reserved.
   6  *
   7  *   Redistribution and use in source and binary forms, with or without
   8  *   modification, are permitted provided that the following conditions
   9  *   are met:
  10  *
  11  *     * Redistributions of source code must retain the above copyright
  12  *       notice, this list of conditions and the following disclaimer.
  13  *     * Redistributions in binary form must reproduce the above copyright
  14  *       notice, this list of conditions and the following disclaimer in
  15  *       the documentation and/or other materials provided with the
  16  *       distribution.
  17  *     * Neither the name of Chelsio Communications nor the names of its
  18  *       contributors may be used to endorse or promote products derived
  19  *       from this software without specific prior written permission.
  20  *
  21  *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  22  *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  23  *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  24  *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  25  *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  26  *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  27  *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  28  *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  29  *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  30  *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  31  *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  32  */
  33
  34 #ifndef _CXGBE_COMPAT_H_
  35 #define _CXGBE_COMPAT_H_
  36
  37 #include <string.h>
  38 #include <stdint.h>
  39 #include <stdio.h>
  40 #include <stdarg.h>
  41
  42 #include <rte_common.h>
  43 #include <rte_memcpy.h>
  44 #include <rte_byteorder.h>
  45 #include <rte_cycles.h>
  46 #include <rte_spinlock.h>
  47 #include <rte_log.h>
  48
  49 #define dev_printf(level, fmt, args...) \
  50         RTE_LOG(level, PMD, "rte_cxgbe_pmd: " fmt, ## args)
  51
  52 #define dev_err(x, args...) dev_printf(ERR, args)
  53 #define dev_info(x, args...) dev_printf(INFO, args)
  54 #define dev_warn(x, args...) dev_printf(WARNING, args)
  55
  56 #ifdef RTE_LIBRTE_CXGBE_DEBUG
  57 #define dev_debug(x, args...) dev_printf(DEBUG, args)
  58 #else
  59 #define dev_debug(x, args...) do { } while (0)
  60 #endif
  61
  62 #ifdef RTE_LIBRTE_CXGBE_DEBUG_REG
  63 #define CXGBE_DEBUG_REG(x, args...) dev_printf(DEBUG, "REG:" args)
  64 #else
  65 #define CXGBE_DEBUG_REG(x, args...) do { } while (0)
  66 #endif
  67
  68 #ifdef RTE_LIBRTE_CXGBE_DEBUG_MBOX
  69 #define CXGBE_DEBUG_MBOX(x, args...) dev_printf(DEBUG, "MBOX:" args)
  70 #else
  71 #define CXGBE_DEBUG_MBOX(x, args...) do { } while (0)
  72 #endif
  73
  74 #ifdef RTE_LIBRTE_CXGBE_DEBUG_TX
  75 #define CXGBE_DEBUG_TX(x, args...) dev_printf(DEBUG, "TX:" args)
  76 #else
  77 #define CXGBE_DEBUG_TX(x, args...) do { } while (0)
  78 #endif
  79
  80 #ifdef RTE_LIBRTE_CXGBE_DEBUG_RX
  81 #define CXGBE_DEBUG_RX(x, args...) dev_printf(DEBUG, "RX:" args)
  82 #else
  83 #define CXGBE_DEBUG_RX(x, args...) do { } while (0)
  84 #endif
  85
  86 #ifdef RTE_LIBRTE_CXGBE_DEBUG
  87 #define CXGBE_FUNC_TRACE() \
  88         RTE_LOG(DEBUG, PMD, "CXGBE trace: %s\n", __func__)
  89 #else
  90 #define CXGBE_FUNC_TRACE() do { } while (0)
  91 #endif
  92
  93 #define pr_err(y, args...) dev_err(0, y, ##args)
  94 #define pr_warn(y, args...) dev_warn(0, y, ##args)
  95 #define pr_info(y, args...) dev_info(0, y, ##args)
  96 #define BUG() pr_err("BUG at %s:%d", __func__, __LINE__)
  97
  98 #define ASSERT(x) do {\
  99         if (!(x)) \
 100                 rte_panic("CXGBE: x"); \
 101 } while (0)
 102 #define BUG_ON(x) ASSERT(!(x))
 103
 104 #ifndef WARN_ON
 105 #define WARN_ON(x) do { \
 106         int ret = !!(x); \
 107         if (unlikely(ret)) \
 108                 pr_warn("WARN_ON: \"" #x "\" at %s:%d\n", __func__, __LINE__); \
 109 } while (0)
 110 #endif
 111
 112 #define __iomem
 113
 114 #ifndef BIT
 115 #define BIT(n) (1 << (n))
 116 #endif
 117
 118 #define L1_CACHE_SHIFT  6
 119 #define L1_CACHE_BYTES  BIT(L1_CACHE_SHIFT)
 120
 121 #define PAGE_SHIFT  12
 122 #define CXGBE_ALIGN(x, a) (((x) + (a) - 1) & ~((a) - 1))
 123 #define PTR_ALIGN(p, a) ((typeof(p))CXGBE_ALIGN((unsigned long)(p), (a)))
 124
 125 #define VLAN_HLEN 4
 126
 127 #define rmb()     rte_rmb() /* dpdk rte provided rmb */
 128 #define wmb()     rte_wmb() /* dpdk rte provided wmb */
 129
 130 typedef uint8_t   u8;
 131 typedef int8_t    s8;
 132 typedef uint16_t  u16;
 133 typedef uint32_t  u32;
 134 typedef int32_t   s32;
 135 typedef uint64_t  u64;
 136 typedef int       bool;
 137 typedef uint64_t  dma_addr_t;
 138
 139 #ifndef __le16
 140 #define __le16  uint16_t
 141 #endif
 142 #ifndef __le32
 143 #define __le32  uint32_t
 144 #endif
 145 #ifndef __le64
 146 #define __le64  uint64_t
 147 #endif
 148 #ifndef __be16
 149 #define __be16  uint16_t
 150 #endif
 151 #ifndef __be32
 152 #define __be32  uint32_t
 153 #endif
 154 #ifndef __be64
 155 #define __be64  uint64_t
 156 #endif
 157 #ifndef __u8
 158 #define __u8    uint8_t
 159 #endif
 160 #ifndef __u16
 161 #define __u16   uint16_t
 162 #endif
 163 #ifndef __u32
 164 #define __u32   uint32_t
 165 #endif
 166 #ifndef __u64
 167 #define __u64   uint64_t
 168 #endif
 169
 170 #define FALSE   0
 171 #define TRUE    1
 172 #define false   0
 173 #define true    1
 174
 175 #define min(a, b) RTE_MIN(a, b)
 176 #define max(a, b) RTE_MAX(a, b)
 177
 178 /*
 179  * round up val _p to a power of 2 size _s
 180  */
 181 #define cxgbe_roundup(_p, _s) (((unsigned long)(_p) + (_s - 1)) & ~(_s - 1))
 182
 183 #undef container_of
 184 #define container_of(ptr, type, member) ({ \
 185                 typeof(((type *)0)->member)(*__mptr) = (ptr); \
 186                 (type *)((char *)__mptr - offsetof(type, member)); })
 187
 188 #define ARRAY_SIZE(arr) RTE_DIM(arr)
 189
 190 #define cpu_to_be16(o) rte_cpu_to_be_16(o)
 191 #define cpu_to_be32(o) rte_cpu_to_be_32(o)
 192 #define cpu_to_be64(o) rte_cpu_to_be_64(o)
 193 #define cpu_to_le32(o) rte_cpu_to_le_32(o)
 194 #define be16_to_cpu(o) rte_be_to_cpu_16(o)
 195 #define be32_to_cpu(o) rte_be_to_cpu_32(o)
 196 #define be64_to_cpu(o) rte_be_to_cpu_64(o)
 197 #define le32_to_cpu(o) rte_le_to_cpu_32(o)
 198
 199 #define DIV_ROUND_UP(n, d) (((n) + (d) - 1) / (d))
 200 #define DELAY(x) rte_delay_us(x)
 201 #define udelay(x) DELAY(x)
 202 #define msleep(x) DELAY(1000 * (x))
 203 #define usleep_range(min, max) msleep(DIV_ROUND_UP(min, 1000))
 204
 205 static inline uint8_t hweight32(uint32_t word32)
 206 {
 207         uint32_t res = word32 - ((word32 >> 1) & 0x55555555);
 208
 209         res = (res & 0x33333333) + ((res >> 2) & 0x33333333);
 210         res = (res + (res >> 4)) & 0x0F0F0F0F;
 211         res = res + (res >> 8);
 212         return (res + (res >> 16)) & 0x000000FF;
 213
 214 } /* weight32 */
 215
 216 /**
 217  * cxgbe_fls - find last (most-significant) bit set
 218  * @x: the word to search
 219  *
 220  * This is defined the same way as ffs.
 221  * Note cxgbe_fls(0) = 0, cxgbe_fls(1) = 1, cxgbe_fls(0x80000000) = 32.
 222  */
 223 static inline int cxgbe_fls(int x)
 224 {
 225         return x ? sizeof(x) * 8 - __builtin_clz(x) : 0;
 226 }
 227
 228 static inline unsigned long ilog2(unsigned long n)
 229 {
 230         unsigned int e = 0;
 231
 232         while (n) {
 233                 if (n & ~((1 << 8) - 1)) {
 234                         e += 8;
 235                         n >>= 8;
 236                         continue;
 237                 }
 238
 239                 if (n & ~((1 << 4) - 1)) {
 240                         e += 4;
 241                         n >>= 4;
 242                 }
 243
 244                 for (;;) {
 245                         n >>= 1;
 246                         if (n == 0)
 247                                 break;
 248                         e++;
 249                 }
 250         }
 251
 252         return e;
 253 }
 254
 255 static inline void writel(unsigned int val, volatile void __iomem *addr)
 256 {
 257         *(volatile unsigned int *)addr = val;
 258 }
 259
 260 static inline void writeq(u64 val, volatile void __iomem *addr)
 261 {
 262         writel(val, addr);
 263         writel(val >> 32, (void *)((uintptr_t)addr + 4));
 264 }
 265
 266 #endif /* _CXGBE_COMPAT_H_ */