drivers/net/qede/base/bcm_osal.c

   1 /*
   2  * Copyright (c) 2016 QLogic Corporation.
   3  * All rights reserved.
   4  * www.qlogic.com
   5  *
   6  * See LICENSE.qede_pmd for copyright and licensing details.
   7  */
   8
   9 #include <rte_memzone.h>
  10 #include <rte_errno.h>
  11
  12 #include "bcm_osal.h"
  13 #include "ecore.h"
  14 #include "ecore_hw.h"
  15 #include "ecore_iov_api.h"
  16 #include "ecore_mcp_api.h"
  17 #include "ecore_l2_api.h"
  18
  19 /* Array of memzone pointers */
  20 static const struct rte_memzone *ecore_mz_mapping[RTE_MAX_MEMZONE];
  21 /* Counter to track current memzone allocated */
  22 uint16_t ecore_mz_count;
  23
  24 unsigned long qede_log2_align(unsigned long n)
  25 {
  26         unsigned long ret = n ? 1 : 0;
  27         unsigned long _n = n >> 1;
  28
  29         while (_n) {
  30                 _n >>= 1;
  31                 ret <<= 1;
  32         }
  33
  34         if (ret < n)
  35                 ret <<= 1;
  36
  37         return ret;
  38 }
  39
  40 u32 qede_osal_log2(u32 val)
  41 {
  42         u32 log = 0;
  43
  44         while (val >>= 1)
  45                 log++;
  46
  47         return log;
  48 }
  49
  50 inline void qede_set_bit(u32 nr, unsigned long *addr)
  51 {
  52         __sync_fetch_and_or(addr, (1UL << nr));
  53 }
  54
  55 inline void qede_clr_bit(u32 nr, unsigned long *addr)
  56 {
  57         __sync_fetch_and_and(addr, ~(1UL << nr));
  58 }
  59
  60 inline bool qede_test_bit(u32 nr, unsigned long *addr)
  61 {
  62         bool res;
  63
  64         rte_mb();
  65         res = ((*addr) & (1UL << nr)) != 0;
  66         rte_mb();
  67         return res;
  68 }
  69
  70 static inline u32 qede_ffb(unsigned long word)
  71 {
  72         unsigned long first_bit;
  73
  74         first_bit = __builtin_ffsl(word);
  75         return first_bit ? (first_bit - 1) : OSAL_BITS_PER_UL;
  76 }
  77
  78 inline u32 qede_find_first_bit(unsigned long *addr, u32 limit)
  79 {
  80         u32 i;
  81         u32 nwords = 0;
  82         OSAL_BUILD_BUG_ON(!limit);
  83         nwords = (limit - 1) / OSAL_BITS_PER_UL + 1;
  84         for (i = 0; i < nwords; i++)
  85                 if (addr[i] != 0)
  86                         break;
  87
  88         return (i == nwords) ? limit : i * OSAL_BITS_PER_UL + qede_ffb(addr[i]);
  89 }
  90
  91 static inline u32 qede_ffz(unsigned long word)
  92 {
  93         unsigned long first_zero;
  94
  95         first_zero = __builtin_ffsl(~word);
  96         return first_zero ? (first_zero - 1) : OSAL_BITS_PER_UL;
  97 }
  98
  99 inline u32 qede_find_first_zero_bit(unsigned long *addr, u32 limit)
 100 {
 101         u32 i;
 102         u32 nwords = 0;
 103         OSAL_BUILD_BUG_ON(!limit);
 104         nwords = (limit - 1) / OSAL_BITS_PER_UL + 1;
 105         for (i = 0; i < nwords && ~(addr[i]) == 0; i++);
 106         return (i == nwords) ? limit : i * OSAL_BITS_PER_UL + qede_ffz(addr[i]);
 107 }
 108
 109 void qede_vf_fill_driver_data(struct ecore_hwfn *hwfn,
 110                               __rte_unused struct vf_pf_resc_request *resc_req,
 111                               struct ecore_vf_acquire_sw_info *vf_sw_info)
 112 {
 113         vf_sw_info->os_type = VFPF_ACQUIRE_OS_LINUX_USERSPACE;
 114         vf_sw_info->override_fw_version = 1;
 115 }
 116
 117 void *osal_dma_alloc_coherent(struct ecore_dev *p_dev,
 118                               dma_addr_t *phys, size_t size)
 119 {
 120         const struct rte_memzone *mz;
 121         char mz_name[RTE_MEMZONE_NAMESIZE];
 122         uint32_t core_id = rte_lcore_id();
 123         unsigned int socket_id;
 124
 125         if (ecore_mz_count >= RTE_MAX_MEMZONE) {
 126                 DP_ERR(p_dev, "Memzone allocation count exceeds %u\n",
 127                        RTE_MAX_MEMZONE);
 128                 *phys = 0;
 129                 return OSAL_NULL;
 130         }
 131
 132         OSAL_MEM_ZERO(mz_name, sizeof(*mz_name));
 133         snprintf(mz_name, sizeof(mz_name) - 1, "%lx",
 134                                         (unsigned long)rte_get_timer_cycles());
 135         if (core_id == (unsigned int)LCORE_ID_ANY)
 136                 core_id = rte_get_master_lcore();
 137         socket_id = rte_lcore_to_socket_id(core_id);
 138         mz = rte_memzone_reserve_aligned(mz_name, size,
 139                                          socket_id, 0, RTE_CACHE_LINE_SIZE);
 140         if (!mz) {
 141                 DP_ERR(p_dev, "Unable to allocate DMA memory "
 142                        "of size %zu bytes - %s\n",
 143                        size, rte_strerror(rte_errno));
 144                 *phys = 0;
 145                 return OSAL_NULL;
 146         }
 147         *phys = mz->iova;
 148         ecore_mz_mapping[ecore_mz_count++] = mz;
 149         DP_VERBOSE(p_dev, ECORE_MSG_SP,
 150                    "Allocated dma memory size=%zu phys=0x%lx"
 151                    " virt=%p core=%d\n",
 152                    mz->len, (unsigned long)mz->iova, mz->addr, core_id);
 153         return mz->addr;
 154 }
 155
 156 void *osal_dma_alloc_coherent_aligned(struct ecore_dev *p_dev,
 157                                       dma_addr_t *phys, size_t size, int align)
 158 {
 159         const struct rte_memzone *mz;
 160         char mz_name[RTE_MEMZONE_NAMESIZE];
 161         uint32_t core_id = rte_lcore_id();
 162         unsigned int socket_id;
 163
 164         if (ecore_mz_count >= RTE_MAX_MEMZONE) {
 165                 DP_ERR(p_dev, "Memzone allocation count exceeds %u\n",
 166                        RTE_MAX_MEMZONE);
 167                 *phys = 0;
 168                 return OSAL_NULL;
 169         }
 170
 171         OSAL_MEM_ZERO(mz_name, sizeof(*mz_name));
 172         snprintf(mz_name, sizeof(mz_name) - 1, "%lx",
 173                                         (unsigned long)rte_get_timer_cycles());
 174         if (core_id == (unsigned int)LCORE_ID_ANY)
 175                 core_id = rte_get_master_lcore();
 176         socket_id = rte_lcore_to_socket_id(core_id);
 177         mz = rte_memzone_reserve_aligned(mz_name, size, socket_id, 0, align);
 178         if (!mz) {
 179                 DP_ERR(p_dev, "Unable to allocate DMA memory "
 180                        "of size %zu bytes - %s\n",
 181                        size, rte_strerror(rte_errno));
 182                 *phys = 0;
 183                 return OSAL_NULL;
 184         }
 185         *phys = mz->iova;
 186         ecore_mz_mapping[ecore_mz_count++] = mz;
 187         DP_VERBOSE(p_dev, ECORE_MSG_SP,
 188                    "Allocated aligned dma memory size=%zu phys=0x%lx"
 189                    " virt=%p core=%d\n",
 190                    mz->len, (unsigned long)mz->iova, mz->addr, core_id);
 191         return mz->addr;
 192 }
 193
 194 void osal_dma_free_mem(struct ecore_dev *p_dev, dma_addr_t phys)
 195 {
 196         uint16_t j;
 197
 198         for (j = 0 ; j < ecore_mz_count; j++) {
 199                 if (phys == ecore_mz_mapping[j]->iova) {
 200                         DP_VERBOSE(p_dev, ECORE_MSG_SP,
 201                                 "Free memzone %s\n", ecore_mz_mapping[j]->name);
 202                         rte_memzone_free(ecore_mz_mapping[j]);
 203                         while (j < ecore_mz_count - 1) {
 204                                 ecore_mz_mapping[j] = ecore_mz_mapping[j + 1];
 205                                 j++;
 206                         }
 207                         ecore_mz_count--;
 208                         return;
 209                 }
 210         }
 211
 212         DP_ERR(p_dev, "Unexpected memory free request\n");
 213 }
 214
 215 #ifdef CONFIG_ECORE_ZIPPED_FW
 216 u32 qede_unzip_data(struct ecore_hwfn *p_hwfn, u32 input_len,
 217                     u8 *input_buf, u32 max_size, u8 *unzip_buf)
 218 {
 219         int rc;
 220
 221         p_hwfn->stream->next_in = input_buf;
 222         p_hwfn->stream->avail_in = input_len;
 223         p_hwfn->stream->next_out = unzip_buf;
 224         p_hwfn->stream->avail_out = max_size;
 225
 226         rc = inflateInit2(p_hwfn->stream, MAX_WBITS);
 227
 228         if (rc != Z_OK) {
 229                 DP_ERR(p_hwfn,
 230                            "zlib init failed, rc = %d\n", rc);
 231                 return 0;
 232         }
 233
 234         rc = inflate(p_hwfn->stream, Z_FINISH);
 235         inflateEnd(p_hwfn->stream);
 236
 237         if (rc != Z_OK && rc != Z_STREAM_END) {
 238                 DP_ERR(p_hwfn,
 239                            "FW unzip error: %s, rc=%d\n", p_hwfn->stream->msg,
 240                            rc);
 241                 return 0;
 242         }
 243
 244         return p_hwfn->stream->total_out / 4;
 245 }
 246 #endif
 247
 248 void
 249 qede_get_mcp_proto_stats(struct ecore_dev *edev,
 250                          enum ecore_mcp_protocol_type type,
 251                          union ecore_mcp_protocol_stats *stats)
 252 {
 253         struct ecore_eth_stats lan_stats;
 254
 255         if (type == ECORE_MCP_LAN_STATS) {
 256                 ecore_get_vport_stats(edev, &lan_stats);
 257
 258                 /* @DPDK */
 259                 stats->lan_stats.ucast_rx_pkts = lan_stats.common.rx_ucast_pkts;
 260                 stats->lan_stats.ucast_tx_pkts = lan_stats.common.tx_ucast_pkts;
 261
 262                 stats->lan_stats.fcs_err = -1;
 263         } else {
 264                 DP_INFO(edev, "Statistics request type %d not supported\n",
 265                        type);
 266         }
 267 }
 268
 269 void
 270 qede_hw_err_notify(struct ecore_hwfn *p_hwfn, enum ecore_hw_err_type err_type)
 271 {
 272         char err_str[64];
 273
 274         switch (err_type) {
 275         case ECORE_HW_ERR_FAN_FAIL:
 276                 strcpy(err_str, "Fan Failure");
 277                 break;
 278         case ECORE_HW_ERR_MFW_RESP_FAIL:
 279                 strcpy(err_str, "MFW Response Failure");
 280                 break;
 281         case ECORE_HW_ERR_HW_ATTN:
 282                 strcpy(err_str, "HW Attention");
 283                 break;
 284         case ECORE_HW_ERR_DMAE_FAIL:
 285                 strcpy(err_str, "DMAE Failure");
 286                 break;
 287         case ECORE_HW_ERR_RAMROD_FAIL:
 288                 strcpy(err_str, "Ramrod Failure");
 289                 break;
 290         case ECORE_HW_ERR_FW_ASSERT:
 291                 strcpy(err_str, "FW Assertion");
 292                 break;
 293         default:
 294                 strcpy(err_str, "Unknown");
 295         }
 296
 297         DP_ERR(p_hwfn, "HW error occurred [%s]\n", err_str);
 298         ecore_int_attn_clr_enable(p_hwfn->p_dev, true);
 299 }
 300
 301 u32 qede_crc32(u32 crc, u8 *ptr, u32 length)
 302 {
 303         int i;
 304
 305         while (length--) {
 306                 crc ^= *ptr++;
 307                 for (i = 0; i < 8; i++)
 308                         crc = (crc >> 1) ^ ((crc & 1) ? 0xedb88320 : 0);
 309         }
 310         return crc;
 311 }