diff options
| -rw-r--r-- | drivers/net/usb/r8152.c | 36 |
1 files changed, 32 insertions, 4 deletions
diff --git a/drivers/net/usb/r8152.c b/drivers/net/usb/r8152.c index e9685ce98327..7d2dd80c4a7a 100644 --- a/drivers/net/usb/r8152.c +++ b/drivers/net/usb/r8152.c @@ -59,6 +59,7 @@ #define PLA_WDT6_CTRL 0xe428 #define PLA_TCR0 0xe610 #define PLA_TCR1 0xe612 +#define PLA_MTPS 0xe615 #define PLA_TXFIFO_CTRL 0xe618 #define PLA_RSTTALLY 0xe800 #define PLA_CR 0xe813 @@ -180,6 +181,10 @@ /* PLA_TCR1 */ #define VERSION_MASK 0x7cf0 +/* PLA_MTPS */ +#define MTPS_JUMBO (12 * 1024 / 64) +#define MTPS_DEFAULT (6 * 1024 / 64) + /* PLA_RSTTALLY */ #define TALLY_RESET 0x0001 @@ -440,7 +445,10 @@ enum rtl_register_content { #define BYTE_EN_START_MASK 0x0f #define BYTE_EN_END_MASK 0xf0 +#define RTL8153_MAX_PACKET 9216 /* 9K */ +#define RTL8153_MAX_MTU (RTL8153_MAX_PACKET - VLAN_ETH_HLEN - VLAN_HLEN) #define RTL8152_RMS (VLAN_ETH_FRAME_LEN + VLAN_HLEN) +#define RTL8153_RMS RTL8153_MAX_PACKET #define RTL8152_TX_TIMEOUT (5 * HZ) /* rtl8152 flags */ @@ -2522,7 +2530,8 @@ static void r8153_first_init(struct r8152 *tp) ocp_data &= ~CPCR_RX_VLAN; ocp_write_word(tp, MCU_TYPE_PLA, PLA_CPCR, ocp_data); - ocp_write_word(tp, MCU_TYPE_PLA, PLA_RMS, RTL8152_RMS); + ocp_write_word(tp, MCU_TYPE_PLA, PLA_RMS, RTL8153_RMS); + ocp_write_byte(tp, MCU_TYPE_PLA, PLA_MTPS, MTPS_JUMBO); ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_TCR0); ocp_data |= TCR0_AUTO_FIFO; @@ -2572,7 +2581,7 @@ static void r8153_enter_oob(struct r8152 *tp) mdelay(1); } - ocp_write_word(tp, MCU_TYPE_PLA, PLA_RMS, RTL8152_RMS); + ocp_write_word(tp, MCU_TYPE_PLA, PLA_RMS, RTL8153_RMS); ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_TEREDO_CFG); ocp_data &= ~TEREDO_WAKE_MASK; @@ -3284,6 +3293,26 @@ out: return res; } +static int rtl8152_change_mtu(struct net_device *dev, int new_mtu) +{ + struct r8152 *tp = netdev_priv(dev); + + switch (tp->version) { + case RTL_VER_01: + case RTL_VER_02: + return eth_change_mtu(dev, new_mtu); + default: + break; + } + + if (new_mtu < 68 || new_mtu > RTL8153_MAX_MTU) + return -EINVAL; + + dev->mtu = new_mtu; + + return 0; +} + static const struct net_device_ops rtl8152_netdev_ops = { .ndo_open = rtl8152_open, .ndo_stop = rtl8152_close, @@ -3292,8 +3321,7 @@ static const struct net_device_ops rtl8152_netdev_ops = { .ndo_tx_timeout = rtl8152_tx_timeout, .ndo_set_rx_mode = rtl8152_set_rx_mode, .ndo_set_mac_address = rtl8152_set_mac_address, - - .ndo_change_mtu = eth_change_mtu, + .ndo_change_mtu = rtl8152_change_mtu, .ndo_validate_addr = eth_validate_addr, }; |