linux/drivers/net/ethernet/stmicro/stmmac/mmc_core.c
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   1/*******************************************************************************
   2  DWMAC Management Counters
   3
   4  Copyright (C) 2011  STMicroelectronics Ltd
   5
   6  This program is free software; you can redistribute it and/or modify it
   7  under the terms and conditions of the GNU General Public License,
   8  version 2, as published by the Free Software Foundation.
   9
  10  This program is distributed in the hope it will be useful, but WITHOUT
  11  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  12  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  13  more details.
  14
  15  You should have received a copy of the GNU General Public License along with
  16  this program; if not, write to the Free Software Foundation, Inc.,
  17  51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
  18
  19  The full GNU General Public License is included in this distribution in
  20  the file called "COPYING".
  21
  22  Author: Giuseppe Cavallaro <peppe.cavallaro@st.com>
  23*******************************************************************************/
  24
  25#include <linux/kernel.h>
  26#include <linux/io.h>
  27#include "mmc.h"
  28
  29/* MAC Management Counters register offset */
  30
  31#define MMC_CNTRL               0x00000100      /* MMC Control */
  32#define MMC_RX_INTR             0x00000104      /* MMC RX Interrupt */
  33#define MMC_TX_INTR             0x00000108      /* MMC TX Interrupt */
  34#define MMC_RX_INTR_MASK        0x0000010c      /* MMC Interrupt Mask */
  35#define MMC_TX_INTR_MASK        0x00000110      /* MMC Interrupt Mask */
  36#define MMC_DEFAULT_MASK                0xffffffff
  37
  38/* MMC TX counter registers */
  39
  40/* Note:
  41 * _GB register stands for good and bad frames
  42 * _G is for good only.
  43 */
  44#define MMC_TX_OCTETCOUNT_GB            0x00000114
  45#define MMC_TX_FRAMECOUNT_GB            0x00000118
  46#define MMC_TX_BROADCASTFRAME_G         0x0000011c
  47#define MMC_TX_MULTICASTFRAME_G         0x00000120
  48#define MMC_TX_64_OCTETS_GB             0x00000124
  49#define MMC_TX_65_TO_127_OCTETS_GB      0x00000128
  50#define MMC_TX_128_TO_255_OCTETS_GB     0x0000012c
  51#define MMC_TX_256_TO_511_OCTETS_GB     0x00000130
  52#define MMC_TX_512_TO_1023_OCTETS_GB    0x00000134
  53#define MMC_TX_1024_TO_MAX_OCTETS_GB    0x00000138
  54#define MMC_TX_UNICAST_GB               0x0000013c
  55#define MMC_TX_MULTICAST_GB             0x00000140
  56#define MMC_TX_BROADCAST_GB             0x00000144
  57#define MMC_TX_UNDERFLOW_ERROR          0x00000148
  58#define MMC_TX_SINGLECOL_G              0x0000014c
  59#define MMC_TX_MULTICOL_G               0x00000150
  60#define MMC_TX_DEFERRED                 0x00000154
  61#define MMC_TX_LATECOL                  0x00000158
  62#define MMC_TX_EXESSCOL                 0x0000015c
  63#define MMC_TX_CARRIER_ERROR            0x00000160
  64#define MMC_TX_OCTETCOUNT_G             0x00000164
  65#define MMC_TX_FRAMECOUNT_G             0x00000168
  66#define MMC_TX_EXCESSDEF                0x0000016c
  67#define MMC_TX_PAUSE_FRAME              0x00000170
  68#define MMC_TX_VLAN_FRAME_G             0x00000174
  69
  70/* MMC RX counter registers */
  71#define MMC_RX_FRAMECOUNT_GB            0x00000180
  72#define MMC_RX_OCTETCOUNT_GB            0x00000184
  73#define MMC_RX_OCTETCOUNT_G             0x00000188
  74#define MMC_RX_BROADCASTFRAME_G         0x0000018c
  75#define MMC_RX_MULTICASTFRAME_G         0x00000190
  76#define MMC_RX_CRC_ERRROR               0x00000194
  77#define MMC_RX_ALIGN_ERROR              0x00000198
  78#define MMC_RX_RUN_ERROR                0x0000019C
  79#define MMC_RX_JABBER_ERROR             0x000001A0
  80#define MMC_RX_UNDERSIZE_G              0x000001A4
  81#define MMC_RX_OVERSIZE_G               0x000001A8
  82#define MMC_RX_64_OCTETS_GB             0x000001AC
  83#define MMC_RX_65_TO_127_OCTETS_GB      0x000001b0
  84#define MMC_RX_128_TO_255_OCTETS_GB     0x000001b4
  85#define MMC_RX_256_TO_511_OCTETS_GB     0x000001b8
  86#define MMC_RX_512_TO_1023_OCTETS_GB    0x000001bc
  87#define MMC_RX_1024_TO_MAX_OCTETS_GB    0x000001c0
  88#define MMC_RX_UNICAST_G                0x000001c4
  89#define MMC_RX_LENGTH_ERROR             0x000001c8
  90#define MMC_RX_AUTOFRANGETYPE           0x000001cc
  91#define MMC_RX_PAUSE_FRAMES             0x000001d0
  92#define MMC_RX_FIFO_OVERFLOW            0x000001d4
  93#define MMC_RX_VLAN_FRAMES_GB           0x000001d8
  94#define MMC_RX_WATCHDOG_ERROR           0x000001dc
  95/* IPC*/
  96#define MMC_RX_IPC_INTR_MASK            0x00000200
  97#define MMC_RX_IPC_INTR                 0x00000208
  98/* IPv4*/
  99#define MMC_RX_IPV4_GD                  0x00000210
 100#define MMC_RX_IPV4_HDERR               0x00000214
 101#define MMC_RX_IPV4_NOPAY               0x00000218
 102#define MMC_RX_IPV4_FRAG                0x0000021C
 103#define MMC_RX_IPV4_UDSBL               0x00000220
 104
 105#define MMC_RX_IPV4_GD_OCTETS           0x00000250
 106#define MMC_RX_IPV4_HDERR_OCTETS        0x00000254
 107#define MMC_RX_IPV4_NOPAY_OCTETS        0x00000258
 108#define MMC_RX_IPV4_FRAG_OCTETS         0x0000025c
 109#define MMC_RX_IPV4_UDSBL_OCTETS        0x00000260
 110
 111/* IPV6*/
 112#define MMC_RX_IPV6_GD_OCTETS           0x00000264
 113#define MMC_RX_IPV6_HDERR_OCTETS        0x00000268
 114#define MMC_RX_IPV6_NOPAY_OCTETS        0x0000026c
 115
 116#define MMC_RX_IPV6_GD                  0x00000224
 117#define MMC_RX_IPV6_HDERR               0x00000228
 118#define MMC_RX_IPV6_NOPAY               0x0000022c
 119
 120/* Protocols*/
 121#define MMC_RX_UDP_GD                   0x00000230
 122#define MMC_RX_UDP_ERR                  0x00000234
 123#define MMC_RX_TCP_GD                   0x00000238
 124#define MMC_RX_TCP_ERR                  0x0000023c
 125#define MMC_RX_ICMP_GD                  0x00000240
 126#define MMC_RX_ICMP_ERR                 0x00000244
 127
 128#define MMC_RX_UDP_GD_OCTETS            0x00000270
 129#define MMC_RX_UDP_ERR_OCTETS           0x00000274
 130#define MMC_RX_TCP_GD_OCTETS            0x00000278
 131#define MMC_RX_TCP_ERR_OCTETS           0x0000027c
 132#define MMC_RX_ICMP_GD_OCTETS           0x00000280
 133#define MMC_RX_ICMP_ERR_OCTETS          0x00000284
 134
 135void dwmac_mmc_ctrl(void __iomem *ioaddr, unsigned int mode)
 136{
 137        u32 value = readl(ioaddr + MMC_CNTRL);
 138
 139        value |= (mode & 0x3F);
 140
 141        writel(value, ioaddr + MMC_CNTRL);
 142
 143        pr_debug("stmmac: MMC ctrl register (offset 0x%x): 0x%08x\n",
 144                 MMC_CNTRL, value);
 145}
 146
 147/* To mask all all interrupts.*/
 148void dwmac_mmc_intr_all_mask(void __iomem *ioaddr)
 149{
 150        writel(MMC_DEFAULT_MASK, ioaddr + MMC_RX_INTR_MASK);
 151        writel(MMC_DEFAULT_MASK, ioaddr + MMC_TX_INTR_MASK);
 152}
 153
 154/* This reads the MAC core counters (if actaully supported).
 155 * by default the MMC core is programmed to reset each
 156 * counter after a read. So all the field of the mmc struct
 157 * have to be incremented.
 158 */
 159void dwmac_mmc_read(void __iomem *ioaddr, struct stmmac_counters *mmc)
 160{
 161        mmc->mmc_tx_octetcount_gb += readl(ioaddr + MMC_TX_OCTETCOUNT_GB);
 162        mmc->mmc_tx_framecount_gb += readl(ioaddr + MMC_TX_FRAMECOUNT_GB);
 163        mmc->mmc_tx_broadcastframe_g += readl(ioaddr + MMC_TX_BROADCASTFRAME_G);
 164        mmc->mmc_tx_multicastframe_g += readl(ioaddr + MMC_TX_MULTICASTFRAME_G);
 165        mmc->mmc_tx_64_octets_gb += readl(ioaddr + MMC_TX_64_OCTETS_GB);
 166        mmc->mmc_tx_65_to_127_octets_gb +=
 167            readl(ioaddr + MMC_TX_65_TO_127_OCTETS_GB);
 168        mmc->mmc_tx_128_to_255_octets_gb +=
 169            readl(ioaddr + MMC_TX_128_TO_255_OCTETS_GB);
 170        mmc->mmc_tx_256_to_511_octets_gb +=
 171            readl(ioaddr + MMC_TX_256_TO_511_OCTETS_GB);
 172        mmc->mmc_tx_512_to_1023_octets_gb +=
 173            readl(ioaddr + MMC_TX_512_TO_1023_OCTETS_GB);
 174        mmc->mmc_tx_1024_to_max_octets_gb +=
 175            readl(ioaddr + MMC_TX_1024_TO_MAX_OCTETS_GB);
 176        mmc->mmc_tx_unicast_gb += readl(ioaddr + MMC_TX_UNICAST_GB);
 177        mmc->mmc_tx_multicast_gb += readl(ioaddr + MMC_TX_MULTICAST_GB);
 178        mmc->mmc_tx_broadcast_gb += readl(ioaddr + MMC_TX_BROADCAST_GB);
 179        mmc->mmc_tx_underflow_error += readl(ioaddr + MMC_TX_UNDERFLOW_ERROR);
 180        mmc->mmc_tx_singlecol_g += readl(ioaddr + MMC_TX_SINGLECOL_G);
 181        mmc->mmc_tx_multicol_g += readl(ioaddr + MMC_TX_MULTICOL_G);
 182        mmc->mmc_tx_deferred += readl(ioaddr + MMC_TX_DEFERRED);
 183        mmc->mmc_tx_latecol += readl(ioaddr + MMC_TX_LATECOL);
 184        mmc->mmc_tx_exesscol += readl(ioaddr + MMC_TX_EXESSCOL);
 185        mmc->mmc_tx_carrier_error += readl(ioaddr + MMC_TX_CARRIER_ERROR);
 186        mmc->mmc_tx_octetcount_g += readl(ioaddr + MMC_TX_OCTETCOUNT_G);
 187        mmc->mmc_tx_framecount_g += readl(ioaddr + MMC_TX_FRAMECOUNT_G);
 188        mmc->mmc_tx_excessdef += readl(ioaddr + MMC_TX_EXCESSDEF);
 189        mmc->mmc_tx_pause_frame += readl(ioaddr + MMC_TX_PAUSE_FRAME);
 190        mmc->mmc_tx_vlan_frame_g += readl(ioaddr + MMC_TX_VLAN_FRAME_G);
 191
 192        /* MMC RX counter registers */
 193        mmc->mmc_rx_framecount_gb += readl(ioaddr + MMC_RX_FRAMECOUNT_GB);
 194        mmc->mmc_rx_octetcount_gb += readl(ioaddr + MMC_RX_OCTETCOUNT_GB);
 195        mmc->mmc_rx_octetcount_g += readl(ioaddr + MMC_RX_OCTETCOUNT_G);
 196        mmc->mmc_rx_broadcastframe_g += readl(ioaddr + MMC_RX_BROADCASTFRAME_G);
 197        mmc->mmc_rx_multicastframe_g += readl(ioaddr + MMC_RX_MULTICASTFRAME_G);
 198        mmc->mmc_rx_crc_errror += readl(ioaddr + MMC_RX_CRC_ERRROR);
 199        mmc->mmc_rx_align_error += readl(ioaddr + MMC_RX_ALIGN_ERROR);
 200        mmc->mmc_rx_run_error += readl(ioaddr + MMC_RX_RUN_ERROR);
 201        mmc->mmc_rx_jabber_error += readl(ioaddr + MMC_RX_JABBER_ERROR);
 202        mmc->mmc_rx_undersize_g += readl(ioaddr + MMC_RX_UNDERSIZE_G);
 203        mmc->mmc_rx_oversize_g += readl(ioaddr + MMC_RX_OVERSIZE_G);
 204        mmc->mmc_rx_64_octets_gb += readl(ioaddr + MMC_RX_64_OCTETS_GB);
 205        mmc->mmc_rx_65_to_127_octets_gb +=
 206            readl(ioaddr + MMC_RX_65_TO_127_OCTETS_GB);
 207        mmc->mmc_rx_128_to_255_octets_gb +=
 208            readl(ioaddr + MMC_RX_128_TO_255_OCTETS_GB);
 209        mmc->mmc_rx_256_to_511_octets_gb +=
 210            readl(ioaddr + MMC_RX_256_TO_511_OCTETS_GB);
 211        mmc->mmc_rx_512_to_1023_octets_gb +=
 212            readl(ioaddr + MMC_RX_512_TO_1023_OCTETS_GB);
 213        mmc->mmc_rx_1024_to_max_octets_gb +=
 214            readl(ioaddr + MMC_RX_1024_TO_MAX_OCTETS_GB);
 215        mmc->mmc_rx_unicast_g += readl(ioaddr + MMC_RX_UNICAST_G);
 216        mmc->mmc_rx_length_error += readl(ioaddr + MMC_RX_LENGTH_ERROR);
 217        mmc->mmc_rx_autofrangetype += readl(ioaddr + MMC_RX_AUTOFRANGETYPE);
 218        mmc->mmc_rx_pause_frames += readl(ioaddr + MMC_RX_PAUSE_FRAMES);
 219        mmc->mmc_rx_fifo_overflow += readl(ioaddr + MMC_RX_FIFO_OVERFLOW);
 220        mmc->mmc_rx_vlan_frames_gb += readl(ioaddr + MMC_RX_VLAN_FRAMES_GB);
 221        mmc->mmc_rx_watchdog_error += readl(ioaddr + MMC_RX_WATCHDOG_ERROR);
 222        /* IPC */
 223        mmc->mmc_rx_ipc_intr_mask += readl(ioaddr + MMC_RX_IPC_INTR_MASK);
 224        mmc->mmc_rx_ipc_intr += readl(ioaddr + MMC_RX_IPC_INTR);
 225        /* IPv4 */
 226        mmc->mmc_rx_ipv4_gd += readl(ioaddr + MMC_RX_IPV4_GD);
 227        mmc->mmc_rx_ipv4_hderr += readl(ioaddr + MMC_RX_IPV4_HDERR);
 228        mmc->mmc_rx_ipv4_nopay += readl(ioaddr + MMC_RX_IPV4_NOPAY);
 229        mmc->mmc_rx_ipv4_frag += readl(ioaddr + MMC_RX_IPV4_FRAG);
 230        mmc->mmc_rx_ipv4_udsbl += readl(ioaddr + MMC_RX_IPV4_UDSBL);
 231
 232        mmc->mmc_rx_ipv4_gd_octets += readl(ioaddr + MMC_RX_IPV4_GD_OCTETS);
 233        mmc->mmc_rx_ipv4_hderr_octets +=
 234            readl(ioaddr + MMC_RX_IPV4_HDERR_OCTETS);
 235        mmc->mmc_rx_ipv4_nopay_octets +=
 236            readl(ioaddr + MMC_RX_IPV4_NOPAY_OCTETS);
 237        mmc->mmc_rx_ipv4_frag_octets += readl(ioaddr + MMC_RX_IPV4_FRAG_OCTETS);
 238        mmc->mmc_rx_ipv4_udsbl_octets +=
 239            readl(ioaddr + MMC_RX_IPV4_UDSBL_OCTETS);
 240
 241        /* IPV6 */
 242        mmc->mmc_rx_ipv6_gd_octets += readl(ioaddr + MMC_RX_IPV6_GD_OCTETS);
 243        mmc->mmc_rx_ipv6_hderr_octets +=
 244            readl(ioaddr + MMC_RX_IPV6_HDERR_OCTETS);
 245        mmc->mmc_rx_ipv6_nopay_octets +=
 246            readl(ioaddr + MMC_RX_IPV6_NOPAY_OCTETS);
 247
 248        mmc->mmc_rx_ipv6_gd += readl(ioaddr + MMC_RX_IPV6_GD);
 249        mmc->mmc_rx_ipv6_hderr += readl(ioaddr + MMC_RX_IPV6_HDERR);
 250        mmc->mmc_rx_ipv6_nopay += readl(ioaddr + MMC_RX_IPV6_NOPAY);
 251
 252        /* Protocols */
 253        mmc->mmc_rx_udp_gd += readl(ioaddr + MMC_RX_UDP_GD);
 254        mmc->mmc_rx_udp_err += readl(ioaddr + MMC_RX_UDP_ERR);
 255        mmc->mmc_rx_tcp_gd += readl(ioaddr + MMC_RX_TCP_GD);
 256        mmc->mmc_rx_tcp_err += readl(ioaddr + MMC_RX_TCP_ERR);
 257        mmc->mmc_rx_icmp_gd += readl(ioaddr + MMC_RX_ICMP_GD);
 258        mmc->mmc_rx_icmp_err += readl(ioaddr + MMC_RX_ICMP_ERR);
 259
 260        mmc->mmc_rx_udp_gd_octets += readl(ioaddr + MMC_RX_UDP_GD_OCTETS);
 261        mmc->mmc_rx_udp_err_octets += readl(ioaddr + MMC_RX_UDP_ERR_OCTETS);
 262        mmc->mmc_rx_tcp_gd_octets += readl(ioaddr + MMC_RX_TCP_GD_OCTETS);
 263        mmc->mmc_rx_tcp_err_octets += readl(ioaddr + MMC_RX_TCP_ERR_OCTETS);
 264        mmc->mmc_rx_icmp_gd_octets += readl(ioaddr + MMC_RX_ICMP_GD_OCTETS);
 265        mmc->mmc_rx_icmp_err_octets += readl(ioaddr + MMC_RX_ICMP_ERR_OCTETS);
 266}
 267