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 <zlib.h>
  10
  11 #include <rte_memzone.h>
  12 #include <rte_errno.h>
  13
  14 #include "bcm_osal.h"
  15 #include "ecore.h"
  16 #include "ecore_hw.h"
  17 #include "ecore_iov_api.h"
  18 #include "ecore_mcp_api.h"
  19 #include "ecore_l2_api.h"
  20
  21
  22 unsigned long qede_log2_align(unsigned long n)
  23 {
  24         unsigned long ret = n ? 1 : 0;
  25         unsigned long _n = n >> 1;
  26
  27         while (_n) {
  28                 _n >>= 1;
  29                 ret <<= 1;
  30         }
  31
  32         if (ret < n)
  33                 ret <<= 1;
  34
  35         return ret;
  36 }
  37
  38 u32 qede_osal_log2(u32 val)
  39 {
  40         u32 log = 0;
  41
  42         while (val >>= 1)
  43                 log++;
  44
  45         return log;
  46 }
  47
  48 inline void qede_set_bit(u32 nr, unsigned long *addr)
  49 {
  50         __sync_fetch_and_or(addr, (1UL << nr));
  51 }
  52
  53 inline void qede_clr_bit(u32 nr, unsigned long *addr)
  54 {
  55         __sync_fetch_and_and(addr, ~(1UL << nr));
  56 }
  57
  58 inline bool qede_test_bit(u32 nr, unsigned long *addr)
  59 {
  60         bool res;
  61
  62         rte_mb();
  63         res = ((*addr) & (1UL << nr)) != 0;
  64         rte_mb();
  65         return res;
  66 }
  67
  68 static inline u32 qede_ffz(unsigned long word)
  69 {
  70         unsigned long first_zero;
  71
  72         first_zero = __builtin_ffsl(~word);
  73         return first_zero ? (first_zero - 1) : OSAL_BITS_PER_UL;
  74 }
  75
  76 inline u32 qede_find_first_zero_bit(unsigned long *addr, u32 limit)
  77 {
  78         u32 i;
  79         u32 nwords = 0;
  80         OSAL_BUILD_BUG_ON(!limit);
  81         nwords = (limit - 1) / OSAL_BITS_PER_UL + 1;
  82         for (i = 0; i < nwords; i++)
  83                 if (~(addr[i] != 0))
  84                         break;
  85         return (i == nwords) ? limit : i * OSAL_BITS_PER_UL + qede_ffz(addr[i]);
  86 }
  87
  88 void qede_vf_fill_driver_data(struct ecore_hwfn *hwfn,
  89                               __rte_unused struct vf_pf_resc_request *resc_req,
  90                               struct ecore_vf_acquire_sw_info *vf_sw_info)
  91 {
  92         vf_sw_info->os_type = VFPF_ACQUIRE_OS_LINUX_USERSPACE;
  93         vf_sw_info->override_fw_version = 1;
  94 }
  95
  96 void *osal_dma_alloc_coherent(struct ecore_dev *p_dev,
  97                               dma_addr_t *phys, size_t size)
  98 {
  99         const struct rte_memzone *mz;
 100         char mz_name[RTE_MEMZONE_NAMESIZE];
 101         uint32_t core_id = rte_lcore_id();
 102         unsigned int socket_id;
 103
 104         OSAL_MEM_ZERO(mz_name, sizeof(*mz_name));
 105         snprintf(mz_name, sizeof(mz_name) - 1, "%lx",
 106                                         (unsigned long)rte_get_timer_cycles());
 107         if (core_id == (unsigned int)LCORE_ID_ANY)
 108                 core_id = 0;
 109         socket_id = rte_lcore_to_socket_id(core_id);
 110         mz = rte_memzone_reserve_aligned(mz_name, size,
 111                                          socket_id, 0, RTE_CACHE_LINE_SIZE);
 112         if (!mz) {
 113                 DP_ERR(p_dev, "Unable to allocate DMA memory "
 114                        "of size %zu bytes - %s\n",
 115                        size, rte_strerror(rte_errno));
 116                 *phys = 0;
 117                 return OSAL_NULL;
 118         }
 119         *phys = mz->phys_addr;
 120         DP_VERBOSE(p_dev, ECORE_MSG_PROBE,
 121                    "size=%zu phys=0x%" PRIx64 " virt=%p on socket=%u\n",
 122                    mz->len, mz->phys_addr, mz->addr, socket_id);
 123         return mz->addr;
 124 }
 125
 126 void *osal_dma_alloc_coherent_aligned(struct ecore_dev *p_dev,
 127                                       dma_addr_t *phys, size_t size, int align)
 128 {
 129         const struct rte_memzone *mz;
 130         char mz_name[RTE_MEMZONE_NAMESIZE];
 131         uint32_t core_id = rte_lcore_id();
 132         unsigned int socket_id;
 133
 134         OSAL_MEM_ZERO(mz_name, sizeof(*mz_name));
 135         snprintf(mz_name, sizeof(mz_name) - 1, "%lx",
 136                                         (unsigned long)rte_get_timer_cycles());
 137         if (core_id == (unsigned int)LCORE_ID_ANY)
 138                 core_id = 0;
 139         socket_id = rte_lcore_to_socket_id(core_id);
 140         mz = rte_memzone_reserve_aligned(mz_name, size, socket_id, 0, align);
 141         if (!mz) {
 142                 DP_ERR(p_dev, "Unable to allocate DMA memory "
 143                        "of size %zu bytes - %s\n",
 144                        size, rte_strerror(rte_errno));
 145                 *phys = 0;
 146                 return OSAL_NULL;
 147         }
 148         *phys = mz->phys_addr;
 149         DP_VERBOSE(p_dev, ECORE_MSG_PROBE,
 150                    "aligned memory size=%zu phys=0x%" PRIx64 " virt=%p core=%d\n",
 151                    mz->len, mz->phys_addr, mz->addr, core_id);
 152         return mz->addr;
 153 }
 154
 155 u32 qede_unzip_data(struct ecore_hwfn *p_hwfn, u32 input_len,
 156                     u8 *input_buf, u32 max_size, u8 *unzip_buf)
 157 {
 158         int rc;
 159
 160         p_hwfn->stream->next_in = input_buf;
 161         p_hwfn->stream->avail_in = input_len;
 162         p_hwfn->stream->next_out = unzip_buf;
 163         p_hwfn->stream->avail_out = max_size;
 164
 165         rc = inflateInit2(p_hwfn->stream, MAX_WBITS);
 166
 167         if (rc != Z_OK) {
 168                 DP_ERR(p_hwfn,
 169                            "zlib init failed, rc = %d\n", rc);
 170                 return 0;
 171         }
 172
 173         rc = inflate(p_hwfn->stream, Z_FINISH);
 174         inflateEnd(p_hwfn->stream);
 175
 176         if (rc != Z_OK && rc != Z_STREAM_END) {
 177                 DP_ERR(p_hwfn,
 178                            "FW unzip error: %s, rc=%d\n", p_hwfn->stream->msg,
 179                            rc);
 180                 return 0;
 181         }
 182
 183         return p_hwfn->stream->total_out / 4;
 184 }
 185
 186 void
 187 qede_get_mcp_proto_stats(struct ecore_dev *edev,
 188                          enum ecore_mcp_protocol_type type,
 189                          union ecore_mcp_protocol_stats *stats)
 190 {
 191         struct ecore_eth_stats lan_stats;
 192
 193         if (type == ECORE_MCP_LAN_STATS) {
 194                 ecore_get_vport_stats(edev, &lan_stats);
 195                 stats->lan_stats.ucast_rx_pkts = lan_stats.rx_ucast_pkts;
 196                 stats->lan_stats.ucast_tx_pkts = lan_stats.tx_ucast_pkts;
 197                 stats->lan_stats.fcs_err = -1;
 198         } else {
 199                 DP_INFO(edev, "Statistics request type %d not supported\n",
 200                        type);
 201         }
 202 }