diff options
Diffstat (limited to 'drivers/net/ethernet/renesas/sh_eth.c')
| -rw-r--r-- | drivers/net/ethernet/renesas/sh_eth.c | 521 |
1 files changed, 219 insertions, 302 deletions
diff --git a/drivers/net/ethernet/renesas/sh_eth.c b/drivers/net/ethernet/renesas/sh_eth.c index e29fe8dbd226..a753928bab9c 100644 --- a/drivers/net/ethernet/renesas/sh_eth.c +++ b/drivers/net/ethernet/renesas/sh_eth.c @@ -313,9 +313,14 @@ static const u16 sh_eth_offset_fast_sh3_sh2[SH_ETH_MAX_REGISTER_OFFSET] = { [TSU_ADRL31] = 0x01fc, }; -#if defined(CONFIG_CPU_SUBTYPE_SH7734) || \ - defined(CONFIG_CPU_SUBTYPE_SH7763) || \ - defined(CONFIG_ARCH_R8A7740) +static int sh_eth_is_gether(struct sh_eth_private *mdp) +{ + if (mdp->reg_offset == sh_eth_offset_gigabit) + return 1; + else + return 0; +} + static void sh_eth_select_mii(struct net_device *ndev) { u32 value = 0x0; @@ -339,11 +344,7 @@ static void sh_eth_select_mii(struct net_device *ndev) sh_eth_write(ndev, value, RMII_MII); } -#endif -/* There is CPU dependent code */ -#if defined(CONFIG_ARCH_R8A7778) || defined(CONFIG_ARCH_R8A7779) -#define SH_ETH_RESET_DEFAULT 1 static void sh_eth_set_duplex(struct net_device *ndev) { struct sh_eth_private *mdp = netdev_priv(ndev); @@ -354,7 +355,8 @@ static void sh_eth_set_duplex(struct net_device *ndev) sh_eth_write(ndev, sh_eth_read(ndev, ECMR) & ~ECMR_DM, ECMR); } -static void sh_eth_set_rate(struct net_device *ndev) +/* There is CPU dependent code */ +static void sh_eth_set_rate_r8a777x(struct net_device *ndev) { struct sh_eth_private *mdp = netdev_priv(ndev); @@ -371,9 +373,9 @@ static void sh_eth_set_rate(struct net_device *ndev) } /* R8A7778/9 */ -static struct sh_eth_cpu_data sh_eth_my_cpu_data = { +static struct sh_eth_cpu_data r8a777x_data = { .set_duplex = sh_eth_set_duplex, - .set_rate = sh_eth_set_rate, + .set_rate = sh_eth_set_rate_r8a777x, .ecsr_value = ECSR_PSRTO | ECSR_LCHNG | ECSR_ICD, .ecsipr_value = ECSIPR_PSRTOIP | ECSIPR_LCHNGIP | ECSIPR_ICDIP, @@ -383,26 +385,14 @@ static struct sh_eth_cpu_data sh_eth_my_cpu_data = { .eesr_err_check = EESR_TWB | EESR_TABT | EESR_RABT | EESR_RFE | EESR_RDE | EESR_RFRMER | EESR_TFE | EESR_TDE | EESR_ECI, - .tx_error_check = EESR_TWB | EESR_TABT | EESR_TDE | EESR_TFE, .apr = 1, .mpr = 1, .tpauser = 1, .hw_swap = 1, }; -#elif defined(CONFIG_CPU_SUBTYPE_SH7724) -#define SH_ETH_RESET_DEFAULT 1 -static void sh_eth_set_duplex(struct net_device *ndev) -{ - struct sh_eth_private *mdp = netdev_priv(ndev); - if (mdp->duplex) /* Full */ - sh_eth_write(ndev, sh_eth_read(ndev, ECMR) | ECMR_DM, ECMR); - else /* Half */ - sh_eth_write(ndev, sh_eth_read(ndev, ECMR) & ~ECMR_DM, ECMR); -} - -static void sh_eth_set_rate(struct net_device *ndev) +static void sh_eth_set_rate_sh7724(struct net_device *ndev) { struct sh_eth_private *mdp = netdev_priv(ndev); @@ -419,19 +409,18 @@ static void sh_eth_set_rate(struct net_device *ndev) } /* SH7724 */ -static struct sh_eth_cpu_data sh_eth_my_cpu_data = { +static struct sh_eth_cpu_data sh7724_data = { .set_duplex = sh_eth_set_duplex, - .set_rate = sh_eth_set_rate, + .set_rate = sh_eth_set_rate_sh7724, .ecsr_value = ECSR_PSRTO | ECSR_LCHNG | ECSR_ICD, .ecsipr_value = ECSIPR_PSRTOIP | ECSIPR_LCHNGIP | ECSIPR_ICDIP, - .eesipr_value = DMAC_M_RFRMER | DMAC_M_ECI | 0x01ff009f, + .eesipr_value = 0x01ff009f, .tx_check = EESR_FTC | EESR_CND | EESR_DLC | EESR_CD | EESR_RTO, .eesr_err_check = EESR_TWB | EESR_TABT | EESR_RABT | EESR_RFE | EESR_RDE | EESR_RFRMER | EESR_TFE | EESR_TDE | EESR_ECI, - .tx_error_check = EESR_TWB | EESR_TABT | EESR_TDE | EESR_TFE, .apr = 1, .mpr = 1, @@ -440,22 +429,8 @@ static struct sh_eth_cpu_data sh_eth_my_cpu_data = { .rpadir = 1, .rpadir_value = 0x00020000, /* NET_IP_ALIGN assumed to be 2 */ }; -#elif defined(CONFIG_CPU_SUBTYPE_SH7757) -#define SH_ETH_HAS_BOTH_MODULES 1 -#define SH_ETH_HAS_TSU 1 -static int sh_eth_check_reset(struct net_device *ndev); - -static void sh_eth_set_duplex(struct net_device *ndev) -{ - struct sh_eth_private *mdp = netdev_priv(ndev); - if (mdp->duplex) /* Full */ - sh_eth_write(ndev, sh_eth_read(ndev, ECMR) | ECMR_DM, ECMR); - else /* Half */ - sh_eth_write(ndev, sh_eth_read(ndev, ECMR) & ~ECMR_DM, ECMR); -} - -static void sh_eth_set_rate(struct net_device *ndev) +static void sh_eth_set_rate_sh7757(struct net_device *ndev) { struct sh_eth_private *mdp = netdev_priv(ndev); @@ -472,9 +447,9 @@ static void sh_eth_set_rate(struct net_device *ndev) } /* SH7757 */ -static struct sh_eth_cpu_data sh_eth_my_cpu_data = { - .set_duplex = sh_eth_set_duplex, - .set_rate = sh_eth_set_rate, +static struct sh_eth_cpu_data sh7757_data = { + .set_duplex = sh_eth_set_duplex, + .set_rate = sh_eth_set_rate_sh7757, .eesipr_value = DMAC_M_RFRMER | DMAC_M_ECI | 0x003fffff, .rmcr_value = 0x00000001, @@ -483,8 +458,8 @@ static struct sh_eth_cpu_data sh_eth_my_cpu_data = { .eesr_err_check = EESR_TWB | EESR_TABT | EESR_RABT | EESR_RFE | EESR_RDE | EESR_RFRMER | EESR_TFE | EESR_TDE | EESR_ECI, - .tx_error_check = EESR_TWB | EESR_TABT | EESR_TDE | EESR_TFE, + .irq_flags = IRQF_SHARED, .apr = 1, .mpr = 1, .tpauser = 1, @@ -494,7 +469,7 @@ static struct sh_eth_cpu_data sh_eth_my_cpu_data = { .rpadir_value = 2 << 16, }; -#define SH_GIGA_ETH_BASE 0xfee00000 +#define SH_GIGA_ETH_BASE 0xfee00000UL #define GIGA_MALR(port) (SH_GIGA_ETH_BASE + 0x800 * (port) + 0x05c8) #define GIGA_MAHR(port) (SH_GIGA_ETH_BASE + 0x800 * (port) + 0x05c0) static void sh_eth_chip_reset_giga(struct net_device *ndev) @@ -519,52 +494,6 @@ static void sh_eth_chip_reset_giga(struct net_device *ndev) } } -static int sh_eth_is_gether(struct sh_eth_private *mdp); -static int sh_eth_reset(struct net_device *ndev) -{ - struct sh_eth_private *mdp = netdev_priv(ndev); - int ret = 0; - - if (sh_eth_is_gether(mdp)) { - sh_eth_write(ndev, 0x03, EDSR); - sh_eth_write(ndev, sh_eth_read(ndev, EDMR) | EDMR_SRST_GETHER, - EDMR); - - ret = sh_eth_check_reset(ndev); - if (ret) - goto out; - - /* Table Init */ - sh_eth_write(ndev, 0x0, TDLAR); - sh_eth_write(ndev, 0x0, TDFAR); - sh_eth_write(ndev, 0x0, TDFXR); - sh_eth_write(ndev, 0x0, TDFFR); - sh_eth_write(ndev, 0x0, RDLAR); - sh_eth_write(ndev, 0x0, RDFAR); - sh_eth_write(ndev, 0x0, RDFXR); - sh_eth_write(ndev, 0x0, RDFFR); - } else { - sh_eth_write(ndev, sh_eth_read(ndev, EDMR) | EDMR_SRST_ETHER, - EDMR); - mdelay(3); - sh_eth_write(ndev, sh_eth_read(ndev, EDMR) & ~EDMR_SRST_ETHER, - EDMR); - } - -out: - return ret; -} - -static void sh_eth_set_duplex_giga(struct net_device *ndev) -{ - struct sh_eth_private *mdp = netdev_priv(ndev); - - if (mdp->duplex) /* Full */ - sh_eth_write(ndev, sh_eth_read(ndev, ECMR) | ECMR_DM, ECMR); - else /* Half */ - sh_eth_write(ndev, sh_eth_read(ndev, ECMR) & ~ECMR_DM, ECMR); -} - static void sh_eth_set_rate_giga(struct net_device *ndev) { struct sh_eth_private *mdp = netdev_priv(ndev); @@ -585,9 +514,9 @@ static void sh_eth_set_rate_giga(struct net_device *ndev) } /* SH7757(GETHERC) */ -static struct sh_eth_cpu_data sh_eth_my_cpu_data_giga = { +static struct sh_eth_cpu_data sh7757_data_giga = { .chip_reset = sh_eth_chip_reset_giga, - .set_duplex = sh_eth_set_duplex_giga, + .set_duplex = sh_eth_set_duplex, .set_rate = sh_eth_set_rate_giga, .ecsr_value = ECSR_ICD | ECSR_MPD, @@ -598,11 +527,10 @@ static struct sh_eth_cpu_data sh_eth_my_cpu_data_giga = { .eesr_err_check = EESR_TWB1 | EESR_TWB | EESR_TABT | EESR_RABT | EESR_RFE | EESR_RDE | EESR_RFRMER | EESR_TFE | EESR_TDE | EESR_ECI, - .tx_error_check = EESR_TWB1 | EESR_TWB | EESR_TABT | EESR_TDE | \ - EESR_TFE, .fdr_value = 0x0000072f, .rmcr_value = 0x00000001, + .irq_flags = IRQF_SHARED, .apr = 1, .mpr = 1, .tpauser = 1, @@ -615,19 +543,6 @@ static struct sh_eth_cpu_data sh_eth_my_cpu_data_giga = { .tsu = 1, }; -static struct sh_eth_cpu_data *sh_eth_get_cpu_data(struct sh_eth_private *mdp) -{ - if (sh_eth_is_gether(mdp)) - return &sh_eth_my_cpu_data_giga; - else - return &sh_eth_my_cpu_data; -} - -#elif defined(CONFIG_CPU_SUBTYPE_SH7734) || defined(CONFIG_CPU_SUBTYPE_SH7763) -#define SH_ETH_HAS_TSU 1 -static int sh_eth_check_reset(struct net_device *ndev); -static void sh_eth_reset_hw_crc(struct net_device *ndev); - static void sh_eth_chip_reset(struct net_device *ndev) { struct sh_eth_private *mdp = netdev_priv(ndev); @@ -637,17 +552,7 @@ static void sh_eth_chip_reset(struct net_device *ndev) mdelay(1); } -static void sh_eth_set_duplex(struct net_device *ndev) -{ - struct sh_eth_private *mdp = netdev_priv(ndev); - - if (mdp->duplex) /* Full */ - sh_eth_write(ndev, sh_eth_read(ndev, ECMR) | ECMR_DM, ECMR); - else /* Half */ - sh_eth_write(ndev, sh_eth_read(ndev, ECMR) & ~ECMR_DM, ECMR); -} - -static void sh_eth_set_rate(struct net_device *ndev) +static void sh_eth_set_rate_gether(struct net_device *ndev) { struct sh_eth_private *mdp = netdev_priv(ndev); @@ -666,11 +571,11 @@ static void sh_eth_set_rate(struct net_device *ndev) } } -/* sh7763 */ -static struct sh_eth_cpu_data sh_eth_my_cpu_data = { +/* SH7734 */ +static struct sh_eth_cpu_data sh7734_data = { .chip_reset = sh_eth_chip_reset, .set_duplex = sh_eth_set_duplex, - .set_rate = sh_eth_set_rate, + .set_rate = sh_eth_set_rate_gether, .ecsr_value = ECSR_ICD | ECSR_MPD, .ecsipr_value = ECSIPR_LCHNGIP | ECSIPR_ICDIP | ECSIPR_MPDIP, @@ -680,8 +585,6 @@ static struct sh_eth_cpu_data sh_eth_my_cpu_data = { .eesr_err_check = EESR_TWB1 | EESR_TWB | EESR_TABT | EESR_RABT | EESR_RFE | EESR_RDE | EESR_RFRMER | EESR_TFE | EESR_TDE | EESR_ECI, - .tx_error_check = EESR_TWB1 | EESR_TWB | EESR_TABT | EESR_TDE | \ - EESR_TFE, .apr = 1, .mpr = 1, @@ -691,54 +594,37 @@ static struct sh_eth_cpu_data sh_eth_my_cpu_data = { .no_trimd = 1, .no_ade = 1, .tsu = 1, -#if defined(CONFIG_CPU_SUBTYPE_SH7734) - .hw_crc = 1, - .select_mii = 1, -#endif + .hw_crc = 1, + .select_mii = 1, }; -static int sh_eth_reset(struct net_device *ndev) -{ - int ret = 0; - - sh_eth_write(ndev, EDSR_ENALL, EDSR); - sh_eth_write(ndev, sh_eth_read(ndev, EDMR) | EDMR_SRST_GETHER, EDMR); - - ret = sh_eth_check_reset(ndev); - if (ret) - goto out; +/* SH7763 */ +static struct sh_eth_cpu_data sh7763_data = { + .chip_reset = sh_eth_chip_reset, + .set_duplex = sh_eth_set_duplex, + .set_rate = sh_eth_set_rate_gether, - /* Table Init */ - sh_eth_write(ndev, 0x0, TDLAR); - sh_eth_write(ndev, 0x0, TDFAR); - sh_eth_write(ndev, 0x0, TDFXR); - sh_eth_write(ndev, 0x0, TDFFR); - sh_eth_write(ndev, 0x0, RDLAR); - sh_eth_write(ndev, 0x0, RDFAR); - sh_eth_write(ndev, 0x0, RDFXR); - sh_eth_write(ndev, 0x0, RDFFR); - - /* Reset HW CRC register */ - sh_eth_reset_hw_crc(ndev); - - /* Select MII mode */ - if (sh_eth_my_cpu_data.select_mii) - sh_eth_select_mii(ndev); -out: - return ret; -} + .ecsr_value = ECSR_ICD | ECSR_MPD, + .ecsipr_value = ECSIPR_LCHNGIP | ECSIPR_ICDIP | ECSIPR_MPDIP, + .eesipr_value = DMAC_M_RFRMER | DMAC_M_ECI | 0x003fffff, -static void sh_eth_reset_hw_crc(struct net_device *ndev) -{ - if (sh_eth_my_cpu_data.hw_crc) - sh_eth_write(ndev, 0x0, CSMR); -} + .tx_check = EESR_TC1 | EESR_FTC, + .eesr_err_check = EESR_TWB1 | EESR_TWB | EESR_TABT | EESR_RABT | \ + EESR_RDE | EESR_RFRMER | EESR_TFE | EESR_TDE | \ + EESR_ECI, -#elif defined(CONFIG_ARCH_R8A7740) -#define SH_ETH_HAS_TSU 1 -static int sh_eth_check_reset(struct net_device *ndev); + .apr = 1, + .mpr = 1, + .tpauser = 1, + .bculr = 1, + .hw_swap = 1, + .no_trimd = 1, + .no_ade = 1, + .tsu = 1, + .irq_flags = IRQF_SHARED, +}; -static void sh_eth_chip_reset(struct net_device *ndev) +static void sh_eth_chip_reset_r8a7740(struct net_device *ndev) { struct sh_eth_private *mdp = netdev_priv(ndev); @@ -749,65 +635,11 @@ static void sh_eth_chip_reset(struct net_device *ndev) sh_eth_select_mii(ndev); } -static int sh_eth_reset(struct net_device *ndev) -{ - int ret = 0; - - sh_eth_write(ndev, EDSR_ENALL, EDSR); - sh_eth_write(ndev, sh_eth_read(ndev, EDMR) | EDMR_SRST_GETHER, EDMR); - - ret = sh_eth_check_reset(ndev); - if (ret) - goto out; - - /* Table Init */ - sh_eth_write(ndev, 0x0, TDLAR); - sh_eth_write(ndev, 0x0, TDFAR); - sh_eth_write(ndev, 0x0, TDFXR); - sh_eth_write(ndev, 0x0, TDFFR); - sh_eth_write(ndev, 0x0, RDLAR); - sh_eth_write(ndev, 0x0, RDFAR); - sh_eth_write(ndev, 0x0, RDFXR); - sh_eth_write(ndev, 0x0, RDFFR); - -out: - return ret; -} - -static void sh_eth_set_duplex(struct net_device *ndev) -{ - struct sh_eth_private *mdp = netdev_priv(ndev); - - if (mdp->duplex) /* Full */ - sh_eth_write(ndev, sh_eth_read(ndev, ECMR) | ECMR_DM, ECMR); - else /* Half */ - sh_eth_write(ndev, sh_eth_read(ndev, ECMR) & ~ECMR_DM, ECMR); -} - -static void sh_eth_set_rate(struct net_device *ndev) -{ - struct sh_eth_private *mdp = netdev_priv(ndev); - - switch (mdp->speed) { - case 10: /* 10BASE */ - sh_eth_write(ndev, GECMR_10, GECMR); - break; - case 100:/* 100BASE */ - sh_eth_write(ndev, GECMR_100, GECMR); - break; - case 1000: /* 1000BASE */ - sh_eth_write(ndev, GECMR_1000, GECMR); - break; - default: - break; - } -} - /* R8A7740 */ -static struct sh_eth_cpu_data sh_eth_my_cpu_data = { - .chip_reset = sh_eth_chip_reset, +static struct sh_eth_cpu_data r8a7740_data = { + .chip_reset = sh_eth_chip_reset_r8a7740, .set_duplex = sh_eth_set_duplex, - .set_rate = sh_eth_set_rate, + .set_rate = sh_eth_set_rate_gether, .ecsr_value = ECSR_ICD | ECSR_MPD, .ecsipr_value = ECSIPR_LCHNGIP | ECSIPR_ICDIP | ECSIPR_MPDIP, @@ -817,8 +649,6 @@ static struct sh_eth_cpu_data sh_eth_my_cpu_data = { .eesr_err_check = EESR_TWB1 | EESR_TWB | EESR_TABT | EESR_RABT | EESR_RFE | EESR_RDE | EESR_RFRMER | EESR_TFE | EESR_TDE | EESR_ECI, - .tx_error_check = EESR_TWB1 | EESR_TWB | EESR_TABT | EESR_TDE | \ - EESR_TFE, .apr = 1, .mpr = 1, @@ -829,11 +659,10 @@ static struct sh_eth_cpu_data sh_eth_my_cpu_data = { .no_ade = 1, .tsu = 1, .select_mii = 1, + .shift_rd0 = 1, }; -#elif defined(CONFIG_CPU_SUBTYPE_SH7619) -#define SH_ETH_RESET_DEFAULT 1 -static struct sh_eth_cpu_data sh_eth_my_cpu_data = { +static struct sh_eth_cpu_data sh7619_data = { .eesipr_value = DMAC_M_RFRMER | DMAC_M_ECI | 0x003fffff, .apr = 1, @@ -841,14 +670,11 @@ static struct sh_eth_cpu_data sh_eth_my_cpu_data = { .tpauser = 1, .hw_swap = 1, }; -#elif defined(CONFIG_CPU_SUBTYPE_SH7710) || defined(CONFIG_CPU_SUBTYPE_SH7712) -#define SH_ETH_RESET_DEFAULT 1 -#define SH_ETH_HAS_TSU 1 -static struct sh_eth_cpu_data sh_eth_my_cpu_data = { + +static struct sh_eth_cpu_data sh771x_data = { .eesipr_value = DMAC_M_RFRMER | DMAC_M_ECI | 0x003fffff, .tsu = 1, }; -#endif static void sh_eth_set_default_cpu_data(struct sh_eth_cpu_data *cd) { @@ -873,22 +699,8 @@ static void sh_eth_set_default_cpu_data(struct sh_eth_cpu_data *cd) if (!cd->eesr_err_check) cd->eesr_err_check = DEFAULT_EESR_ERR_CHECK; - - if (!cd->tx_error_check) - cd->tx_error_check = DEFAULT_TX_ERROR_CHECK; } -#if defined(SH_ETH_RESET_DEFAULT) -/* Chip Reset */ -static int sh_eth_reset(struct net_device *ndev) -{ - sh_eth_write(ndev, sh_eth_read(ndev, EDMR) | EDMR_SRST_ETHER, EDMR); - mdelay(3); - sh_eth_write(ndev, sh_eth_read(ndev, EDMR) & ~EDMR_SRST_ETHER, EDMR); - - return 0; -} -#else static int sh_eth_check_reset(struct net_device *ndev) { int ret = 0; @@ -906,7 +718,49 @@ static int sh_eth_check_reset(struct net_device *ndev) } return ret; } -#endif + +static int sh_eth_reset(struct net_device *ndev) +{ + struct sh_eth_private *mdp = netdev_priv(ndev); + int ret = 0; + + if (sh_eth_is_gether(mdp)) { + sh_eth_write(ndev, EDSR_ENALL, EDSR); + sh_eth_write(ndev, sh_eth_read(ndev, EDMR) | EDMR_SRST_GETHER, + EDMR); + + ret = sh_eth_check_reset(ndev); + if (ret) + goto out; + + /* Table Init */ + sh_eth_write(ndev, 0x0, TDLAR); + sh_eth_write(ndev, 0x0, TDFAR); + sh_eth_write(ndev, 0x0, TDFXR); + sh_eth_write(ndev, 0x0, TDFFR); + sh_eth_write(ndev, 0x0, RDLAR); + sh_eth_write(ndev, 0x0, RDFAR); + sh_eth_write(ndev, 0x0, RDFXR); + sh_eth_write(ndev, 0x0, RDFFR); + + /* Reset HW CRC register */ + if (mdp->cd->hw_crc) + sh_eth_write(ndev, 0x0, CSMR); + + /* Select MII mode */ + if (mdp->cd->select_mii) + sh_eth_select_mii(ndev); + } else { + sh_eth_write(ndev, sh_eth_read(ndev, EDMR) | EDMR_SRST_ETHER, + EDMR); + mdelay(3); + sh_eth_write(ndev, sh_eth_read(ndev, EDMR) & ~EDMR_SRST_ETHER, + EDMR); + } + +out: + return ret; +} #if defined(CONFIG_CPU_SH4) || defined(CONFIG_ARCH_SHMOBILE) static void sh_eth_set_receive_align(struct sk_buff *skb) @@ -982,14 +836,6 @@ static void read_mac_address(struct net_device *ndev, unsigned char *mac) } } -static int sh_eth_is_gether(struct sh_eth_private *mdp) -{ - if (mdp->reg_offset == sh_eth_offset_gigabit) - return 1; - else - return 0; -} - static unsigned long sh_eth_get_edtrr_trns(struct sh_eth_private *mdp) { if (sh_eth_is_gether(mdp)) @@ -1388,7 +1234,7 @@ static int sh_eth_txfree(struct net_device *ndev) } /* Packet receive function */ -static int sh_eth_rx(struct net_device *ndev, u32 intr_status) +static int sh_eth_rx(struct net_device *ndev, u32 intr_status, int *quota) { struct sh_eth_private *mdp = netdev_priv(ndev); struct sh_eth_rxdesc *rxdesc; @@ -1396,6 +1242,7 @@ static int sh_eth_rx(struct net_device *ndev, u32 intr_status) int entry = mdp->cur_rx % mdp->num_rx_ring; int boguscnt = (mdp->dirty_rx + mdp->num_rx_ring) - mdp->cur_rx; struct sk_buff *skb; + int exceeded = 0; u16 pkt_len = 0; u32 desc_status; @@ -1407,10 +1254,15 @@ static int sh_eth_rx(struct net_device *ndev, u32 intr_status) if (--boguscnt < 0) break; + if (*quota <= 0) { + exceeded = 1; + break; + } + (*quota)--; + if (!(desc_status & RDFEND)) ndev->stats.rx_length_errors++; -#if defined(CONFIG_ARCH_R8A7740) /* * In case of almost all GETHER/ETHERs, the Receive Frame State * (RFS) bits in the Receive Descriptor 0 are from bit 9 to @@ -1418,8 +1270,8 @@ static int sh_eth_rx(struct net_device *ndev, u32 intr_status) * bits are from bit 25 to bit 16. So, the driver needs right * shifting by 16. */ - desc_status >>= 16; -#endif + if (mdp->cd->shift_rd0) + desc_status >>= 16; if (desc_status & (RD_RFS1 | RD_RFS2 | RD_RFS3 | RD_RFS4 | RD_RFS5 | RD_RFS6 | RD_RFS10)) { @@ -1494,7 +1346,7 @@ static int sh_eth_rx(struct net_device *ndev, u32 intr_status) sh_eth_write(ndev, EDRRR_R, EDRRR); } - return 0; + return exceeded; } static void sh_eth_rcv_snd_disable(struct net_device *ndev) @@ -1636,7 +1488,7 @@ static irqreturn_t sh_eth_interrupt(int irq, void *netdev) struct sh_eth_private *mdp = netdev_priv(ndev); struct sh_eth_cpu_data *cd = mdp->cd; irqreturn_t ret = IRQ_NONE; - unsigned long intr_status; + unsigned long intr_status, intr_enable; spin_lock(&mdp->lock); @@ -1647,34 +1499,41 @@ static irqreturn_t sh_eth_interrupt(int irq, void *netdev) * and we need to fully handle it in sh_eth_error() in order to quench * it as it doesn't get cleared by just writing 1 to the ECI bit... */ - intr_status &= sh_eth_read(ndev, EESIPR) | DMAC_M_ECI; - /* Clear interrupt */ - if (intr_status & (EESR_FRC | EESR_RMAF | EESR_RRF | - EESR_RTLF | EESR_RTSF | EESR_PRE | EESR_CERF | - cd->tx_check | cd->eesr_err_check)) { - sh_eth_write(ndev, intr_status, EESR); + intr_enable = sh_eth_read(ndev, EESIPR); + intr_status &= intr_enable | DMAC_M_ECI; + if (intr_status & (EESR_RX_CHECK | cd->tx_check | cd->eesr_err_check)) ret = IRQ_HANDLED; - } else + else goto other_irq; - if (intr_status & (EESR_FRC | /* Frame recv*/ - EESR_RMAF | /* Multi cast address recv*/ - EESR_RRF | /* Bit frame recv */ - EESR_RTLF | /* Long frame recv*/ - EESR_RTSF | /* short frame recv */ - EESR_PRE | /* PHY-LSI recv error */ - EESR_CERF)){ /* recv frame CRC error */ - sh_eth_rx(ndev, intr_status); + if (intr_status & EESR_RX_CHECK) { + if (napi_schedule_prep(&mdp->napi)) { + /* Mask Rx interrupts */ + sh_eth_write(ndev, intr_enable & ~EESR_RX_CHECK, + EESIPR); + __napi_schedule(&mdp->napi); + } else { + dev_warn(&ndev->dev, + "ignoring interrupt, status 0x%08lx, mask 0x%08lx.\n", + intr_status, intr_enable); + } } /* Tx Check */ if (intr_status & cd->tx_check) { + /* Clear Tx interrupts */ + sh_eth_write(ndev, intr_status & cd->tx_check, EESR); + sh_eth_txfree(ndev); netif_wake_queue(ndev); } - if (intr_status & cd->eesr_err_check) + if (intr_status & cd->eesr_err_check) { + /* Clear error interrupts */ + sh_eth_write(ndev, intr_status & cd->eesr_err_check, EESR); + sh_eth_error(ndev, intr_status); + } other_irq: spin_unlock(&mdp->lock); @@ -1682,6 +1541,33 @@ other_irq: return ret; } +static int sh_eth_poll(struct napi_struct *napi, int budget) +{ + struct sh_eth_private *mdp = container_of(napi, struct sh_eth_private, + napi); + struct net_device *ndev = napi->dev; + int quota = budget; + unsigned long intr_status; + + for (;;) { + intr_status = sh_eth_read(ndev, EESR); + if (!(intr_status & EESR_RX_CHECK)) + break; + /* Clear Rx interrupts */ + sh_eth_write(ndev, intr_status & EESR_RX_CHECK, EESR); + + if (sh_eth_rx(ndev, intr_status, "a)) + goto out; + } + + napi_complete(napi); + + /* Reenable Rx interrupts */ + sh_eth_write(ndev, mdp->cd->eesipr_value, EESIPR); +out: + return budget - quota; +} + /* PHY state control function */ static void sh_eth_adjust_link(struct net_device *ndev) { @@ -1972,14 +1858,7 @@ static int sh_eth_open(struct net_device *ndev) pm_runtime_get_sync(&mdp->pdev->dev); ret = request_irq(ndev->irq, sh_eth_interrupt, -#if defined(CONFIG_CPU_SUBTYPE_SH7763) || \ - defined(CONFIG_CPU_SUBTYPE_SH7764) || \ - defined(CONFIG_CPU_SUBTYPE_SH7757) - IRQF_SHARED, -#else - 0, -#endif - ndev->name, ndev); + mdp->cd->irq_flags, ndev->name, ndev); if (ret) { dev_err(&ndev->dev, "Can not assign IRQ number\n"); return ret; @@ -2000,6 +1879,8 @@ static int sh_eth_open(struct net_device *ndev) if (ret) goto out_free_irq; + napi_enable(&mdp->napi); + return ret; out_free_irq: @@ -2095,6 +1976,8 @@ static int sh_eth_close(struct net_device *ndev) { struct sh_eth_private *mdp = netdev_priv(ndev); + napi_disable(&mdp->napi); + netif_stop_queue(ndev); /* Disable interrupts by clearing the interrupt mask. */ @@ -2165,7 +2048,6 @@ static int sh_eth_do_ioctl(struct net_device *ndev, struct ifreq *rq, return phy_mii_ioctl(phydev, rq, cmd); } -#if defined(SH_ETH_HAS_TSU) /* For TSU_POSTn. Please refer to the manual about this (strange) bitfields */ static void *sh_eth_tsu_get_post_reg_offset(struct sh_eth_private *mdp, int entry) @@ -2508,7 +2390,6 @@ static int sh_eth_vlan_rx_kill_vid(struct net_device *ndev, return 0; } -#endif /* SH_ETH_HAS_TSU */ /* SuperH's TSU register init function */ static void sh_eth_tsu_init(struct sh_eth_private *mdp) @@ -2652,11 +2533,21 @@ static const struct net_device_ops sh_eth_netdev_ops = { .ndo_stop = sh_eth_close, .ndo_start_xmit = sh_eth_start_xmit, .ndo_get_stats = sh_eth_get_stats, -#if defined(SH_ETH_HAS_TSU) + .ndo_tx_timeout = sh_eth_tx_timeout, + .ndo_do_ioctl = sh_eth_do_ioctl, + .ndo_validate_addr = eth_validate_addr, + .ndo_set_mac_address = eth_mac_addr, + .ndo_change_mtu = eth_change_mtu, +}; + +static const struct net_device_ops sh_eth_netdev_ops_tsu = { + .ndo_open = sh_eth_open, + .ndo_stop = sh_eth_close, + .ndo_start_xmit = sh_eth_start_xmit, + .ndo_get_stats = sh_eth_get_stats, .ndo_set_rx_mode = sh_eth_set_multicast_list, .ndo_vlan_rx_add_vid = sh_eth_vlan_rx_add_vid, .ndo_vlan_rx_kill_vid = sh_eth_vlan_rx_kill_vid, -#endif .ndo_tx_timeout = sh_eth_tx_timeout, .ndo_do_ioctl = sh_eth_do_ioctl, .ndo_validate_addr = eth_validate_addr, @@ -2671,6 +2562,7 @@ static int sh_eth_drv_probe(struct platform_device *pdev) struct net_device *ndev = NULL; struct sh_eth_private *mdp = NULL; struct sh_eth_plat_data *pd = pdev->dev.platform_data; + const struct platform_device_id *id = platform_get_device_id(pdev); /* get base addr */ res = platform_get_resource(pdev, IORESOURCE_MEM, 0); @@ -2729,15 +2621,14 @@ static int sh_eth_drv_probe(struct platform_device *pdev) mdp->reg_offset = sh_eth_get_register_offset(pd->register_type); /* set cpu data */ -#if defined(SH_ETH_HAS_BOTH_MODULES) - mdp->cd = sh_eth_get_cpu_data(mdp); -#else - mdp->cd = &sh_eth_my_cpu_data; -#endif + mdp->cd = (struct sh_eth_cpu_data *)id->driver_data; sh_eth_set_default_cpu_data(mdp->cd); /* set function */ - ndev->netdev_ops = &sh_eth_netdev_ops; + if (mdp->cd->tsu) + ndev->netdev_ops = &sh_eth_netdev_ops_tsu; + else + ndev->netdev_ops = &sh_eth_netdev_ops; SET_ETHTOOL_OPS(ndev, &sh_eth_ethtool_ops); ndev->watchdog_timeo = TX_TIMEOUT; @@ -2776,10 +2667,12 @@ static int sh_eth_drv_probe(struct platform_device *pdev) } } + netif_napi_add(ndev, &mdp->napi, sh_eth_poll, 64); + /* network device register */ ret = register_netdev(ndev); if (ret) - goto out_release; + goto out_napi_del; /* mdio bus init */ ret = sh_mdio_init(ndev, pdev->id, pd); @@ -2797,6 +2690,9 @@ static int sh_eth_drv_probe(struct platform_device *pdev) out_unregister: unregister_netdev(ndev); +out_napi_del: + netif_napi_del(&mdp->napi); + out_release: /* net_dev free */ if (ndev) @@ -2809,16 +2705,18 @@ out: static int sh_eth_drv_remove(struct platform_device *pdev) { struct net_device *ndev = platform_get_drvdata(pdev); + struct sh_eth_private *mdp = netdev_priv(ndev); sh_mdio_release(ndev); unregister_netdev(ndev); + netif_napi_del(&mdp->napi); pm_runtime_disable(&pdev->dev); free_netdev(ndev); - platform_set_drvdata(pdev, NULL); return 0; } +#ifdef CONFIG_PM static int sh_eth_runtime_nop(struct device *dev) { /* @@ -2832,17 +2730,36 @@ static int sh_eth_runtime_nop(struct device *dev) return 0; } -static struct dev_pm_ops sh_eth_dev_pm_ops = { +static const struct dev_pm_ops sh_eth_dev_pm_ops = { .runtime_suspend = sh_eth_runtime_nop, .runtime_resume = sh_eth_runtime_nop, }; +#define SH_ETH_PM_OPS (&sh_eth_dev_pm_ops) +#else +#define SH_ETH_PM_OPS NULL +#endif + +static struct platform_device_id sh_eth_id_table[] = { + { "sh7619-ether", (kernel_ulong_t)&sh7619_data }, + { "sh771x-ether", (kernel_ulong_t)&sh771x_data }, + { "sh7724-ether", (kernel_ulong_t)&sh7724_data }, + { "sh7734-gether", (kernel_ulong_t)&sh7734_data }, + { "sh7757-ether", (kernel_ulong_t)&sh7757_data }, + { "sh7757-gether", (kernel_ulong_t)&sh7757_data_giga }, + { "sh7763-gether", (kernel_ulong_t)&sh7763_data }, + { "r8a7740-gether", (kernel_ulong_t)&r8a7740_data }, + { "r8a777x-ether", (kernel_ulong_t)&r8a777x_data }, + { } +}; +MODULE_DEVICE_TABLE(platform, sh_eth_id_table); static struct platform_driver sh_eth_driver = { .probe = sh_eth_drv_probe, .remove = sh_eth_drv_remove, + .id_table = sh_eth_id_table, .driver = { .name = CARDNAME, - .pm = &sh_eth_dev_pm_ops, + .pm = SH_ETH_PM_OPS, }, }; |