diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2013-05-06 15:51:10 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-05-06 15:51:10 -0700 |
commit | 51a26ae7a14b85c99c9be470c2d28eeeba0f26a3 (patch) | |
tree | 63b38cb292a53e89d4b0cfe631c7031e1fed3cfe | |
parent | 2b69703fea185bb0ae1af78ca2da41af677b9dff (diff) | |
parent | 6bf15191f666c5965d212561d7a5c7b78b808dfa (diff) |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Pull networking fixes from David Miller:
"Just a small pile of fixes"
1) Fix race conditions in IP fragmentation LRU list handling, from
Konstantin Khlebnikov.
2) vfree() is no longer verboten in interrupts, so deferring is
pointless, from Al Viro.
3) Conversion from mutex to semaphore in netpoll left trylock test
inverted, caught by Dan Carpenter.
4) 3c59x uses wrong base address when releasing regions, from Sergei
Shtylyov.
5) Bounds checking in TIPC from Dan Carpenter.
6) Fastopen cookies should not be expired as aggressively as other TCP
metrics. From Eric Dumazet.
7) Fix retrieval of MAC address in ibmveth, from Ben Herrenschmidt.
8) Don't use "u16" in virtio user headers, from Stephen Hemminger
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net:
tipc: potential divide by zero in tipc_link_recv_fragment()
tipc: add a bounds check in link_recv_changeover_msg()
net/usb: new driver for RTL8152
3c59x: fix freeing nonexistent resource on driver unload
netpoll: inverted down_trylock() test
rps_dev_flow_table_release(): no need to delay vfree()
fib_trie: no need to delay vfree()
net: frag, fix race conditions in LRU list maintenance
tcp: do not expire TCP fastopen cookies
net/eth/ibmveth: Fixup retrieval of MAC address
virtio: don't expose u16 in userspace api
-rw-r--r-- | drivers/net/ethernet/3com/3c59x.c | 2 | ||||
-rw-r--r-- | drivers/net/ethernet/ibm/ibmveth.c | 23 | ||||
-rw-r--r-- | drivers/net/usb/Kconfig | 11 | ||||
-rw-r--r-- | drivers/net/usb/Makefile | 1 | ||||
-rw-r--r-- | drivers/net/usb/cdc_ether.c | 10 | ||||
-rw-r--r-- | drivers/net/usb/r8152.c | 1767 | ||||
-rw-r--r-- | include/linux/netdevice.h | 1 | ||||
-rw-r--r-- | include/net/inet_frag.h | 5 | ||||
-rw-r--r-- | include/uapi/linux/virtio_net.h | 2 | ||||
-rw-r--r-- | net/core/net-sysfs.c | 12 | ||||
-rw-r--r-- | net/core/netpoll.c | 2 | ||||
-rw-r--r-- | net/ipv4/fib_trie.c | 13 | ||||
-rw-r--r-- | net/ipv4/inet_fragment.c | 1 | ||||
-rw-r--r-- | net/ipv4/tcp_metrics.c | 15 | ||||
-rw-r--r-- | net/tipc/link.c | 11 |
15 files changed, 1826 insertions, 50 deletions
diff --git a/drivers/net/ethernet/3com/3c59x.c b/drivers/net/ethernet/3com/3c59x.c index 1928e2001587..de570a8f8967 100644 --- a/drivers/net/ethernet/3com/3c59x.c +++ b/drivers/net/ethernet/3com/3c59x.c @@ -951,7 +951,7 @@ static int vortex_eisa_remove(struct device *device) unregister_netdev(dev); iowrite16(TotalReset|0x14, ioaddr + EL3_CMD); - release_region(dev->base_addr, VORTEX_TOTAL_SIZE); + release_region(edev->base_addr, VORTEX_TOTAL_SIZE); free_netdev(dev); return 0; diff --git a/drivers/net/ethernet/ibm/ibmveth.c b/drivers/net/ethernet/ibm/ibmveth.c index 302d59401065..70fd55968844 100644 --- a/drivers/net/ethernet/ibm/ibmveth.c +++ b/drivers/net/ethernet/ibm/ibmveth.c @@ -1322,7 +1322,7 @@ static const struct net_device_ops ibmveth_netdev_ops = { static int ibmveth_probe(struct vio_dev *dev, const struct vio_device_id *id) { - int rc, i; + int rc, i, mac_len; struct net_device *netdev; struct ibmveth_adapter *adapter; unsigned char *mac_addr_p; @@ -1332,11 +1332,19 @@ static int ibmveth_probe(struct vio_dev *dev, const struct vio_device_id *id) dev->unit_address); mac_addr_p = (unsigned char *)vio_get_attribute(dev, VETH_MAC_ADDR, - NULL); + &mac_len); if (!mac_addr_p) { dev_err(&dev->dev, "Can't find VETH_MAC_ADDR attribute\n"); return -EINVAL; } + /* Workaround for old/broken pHyp */ + if (mac_len == 8) + mac_addr_p += 2; + else if (mac_len != 6) { + dev_err(&dev->dev, "VETH_MAC_ADDR attribute wrong len %d\n", + mac_len); + return -EINVAL; + } mcastFilterSize_p = (unsigned int *)vio_get_attribute(dev, VETH_MCAST_FILTER_SIZE, NULL); @@ -1361,17 +1369,6 @@ static int ibmveth_probe(struct vio_dev *dev, const struct vio_device_id *id) netif_napi_add(netdev, &adapter->napi, ibmveth_poll, 16); - /* - * Some older boxes running PHYP non-natively have an OF that returns - * a 8-byte local-mac-address field (and the first 2 bytes have to be - * ignored) while newer boxes' OF return a 6-byte field. Note that - * IEEE 1275 specifies that local-mac-address must be a 6-byte field. - * The RPA doc specifies that the first byte must be 10b, so we'll - * just look for it to solve this 8 vs. 6 byte field issue - */ - if ((*mac_addr_p & 0x3) != 0x02) - mac_addr_p += 2; - adapter->mac_addr = 0; memcpy(&adapter->mac_addr, mac_addr_p, 6); diff --git a/drivers/net/usb/Kconfig b/drivers/net/usb/Kconfig index 7c769d8e25ad..287cc624b90b 100644 --- a/drivers/net/usb/Kconfig +++ b/drivers/net/usb/Kconfig @@ -93,6 +93,17 @@ config USB_RTL8150 To compile this driver as a module, choose M here: the module will be called rtl8150. +config USB_RTL8152 + tristate "Realtek RTL8152 Based USB 2.0 Ethernet Adapters" + select NET_CORE + select MII + help + This option adds support for Realtek RTL8152 based USB 2.0 + 10/100 Ethernet adapters. + + To compile this driver as a module, choose M here: the + module will be called r8152. + config USB_USBNET tristate "Multi-purpose USB Networking Framework" select NET_CORE diff --git a/drivers/net/usb/Makefile b/drivers/net/usb/Makefile index 119b06c9aa16..9ab5c9d4b45a 100644 --- a/drivers/net/usb/Makefile +++ b/drivers/net/usb/Makefile @@ -6,6 +6,7 @@ obj-$(CONFIG_USB_CATC) += catc.o obj-$(CONFIG_USB_KAWETH) += kaweth.o obj-$(CONFIG_USB_PEGASUS) += pegasus.o obj-$(CONFIG_USB_RTL8150) += rtl8150.o +obj-$(CONFIG_USB_RTL8152) += r8152.o obj-$(CONFIG_USB_HSO) += hso.o obj-$(CONFIG_USB_NET_AX8817X) += asix.o asix-y := asix_devices.o asix_common.o ax88172a.o diff --git a/drivers/net/usb/cdc_ether.c b/drivers/net/usb/cdc_ether.c index 4ff71d619cd8..24fbec27a22a 100644 --- a/drivers/net/usb/cdc_ether.c +++ b/drivers/net/usb/cdc_ether.c @@ -479,6 +479,7 @@ static const struct driver_info wwan_info = { #define NOVATEL_VENDOR_ID 0x1410 #define ZTE_VENDOR_ID 0x19D2 #define DELL_VENDOR_ID 0x413C +#define REALTEK_VENDOR_ID 0x0bda static const struct usb_device_id products [] = { /* @@ -619,6 +620,15 @@ static const struct usb_device_id products [] = { .driver_info = 0, }, +/* Realtek RTL8152 Based USB 2.0 Ethernet Adapters */ +#if defined(CONFIG_USB_RTL8152) || defined(CONFIG_USB_RTL8152_MODULE) +{ + USB_DEVICE_AND_INTERFACE_INFO(REALTEK_VENDOR_ID, 0x8152, USB_CLASS_COMM, + USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), + .driver_info = 0, +}, +#endif + /* * WHITELIST!!! * diff --git a/drivers/net/usb/r8152.c b/drivers/net/usb/r8152.c new file mode 100644 index 000000000000..14e519888631 --- /dev/null +++ b/drivers/net/usb/r8152.c @@ -0,0 +1,1767 @@ +/* + * Copyright (c) 2013 Realtek Semiconductor Corp. All rights reserved. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * version 2 as published by the Free Software Foundation. + * + */ + +#include <linux/init.h> +#include <linux/signal.h> +#include <linux/slab.h> +#include <linux/module.h> +#include <linux/version.h> +#include <linux/netdevice.h> +#include <linux/etherdevice.h> +#include <linux/mii.h> +#include <linux/ethtool.h> +#include <linux/usb.h> +#include <linux/crc32.h> +#include <linux/if_vlan.h> +#include <linux/uaccess.h> + +/* Version Information */ +#define DRIVER_VERSION "v1.0.0 (2013/05/03)" +#define DRIVER_AUTHOR "Realtek linux nic maintainers <nic_swsd@realtek.com>" +#define DRIVER_DESC "Realtek RTL8152 Based USB 2.0 Ethernet Adapters" +#define MODULENAME "r8152" + +#define R8152_PHY_ID 32 + +#define PLA_IDR 0xc000 +#define PLA_RCR 0xc010 +#define PLA_RMS 0xc016 +#define PLA_RXFIFO_CTRL0 0xc0a0 +#define PLA_RXFIFO_CTRL1 0xc0a4 +#define PLA_RXFIFO_CTRL2 0xc0a8 +#define PLA_FMC 0xc0b4 +#define PLA_CFG_WOL 0xc0b6 +#define PLA_MAR 0xcd00 +#define PAL_BDC_CR 0xd1a0 +#define PLA_LEDSEL 0xdd90 +#define PLA_LED_FEATURE 0xdd92 +#define PLA_PHYAR 0xde00 +#define PLA_GPHY_INTR_IMR 0xe022 +#define PLA_EEE_CR 0xe040 +#define PLA_EEEP_CR 0xe080 +#define PLA_MAC_PWR_CTRL 0xe0c0 +#define PLA_TCR0 0xe610 +#define PLA_TCR1 0xe612 +#define PLA_TXFIFO_CTRL 0xe618 +#define PLA_RSTTELLY 0xe800 +#define PLA_CR 0xe813 +#define PLA_CRWECR 0xe81c +#define PLA_CONFIG5 0xe822 +#define PLA_PHY_PWR 0xe84c +#define PLA_OOB_CTRL 0xe84f +#define PLA_CPCR 0xe854 +#define PLA_MISC_0 0xe858 +#define PLA_MISC_1 0xe85a +#define PLA_OCP_GPHY_BASE 0xe86c +#define PLA_TELLYCNT 0xe890 +#define PLA_SFF_STS_7 0xe8de +#define PLA_PHYSTATUS 0xe908 +#define PLA_BP_BA 0xfc26 +#define PLA_BP_0 0xfc28 +#define PLA_BP_1 0xfc2a +#define PLA_BP_2 0xfc2c +#define PLA_BP_3 0xfc2e +#define PLA_BP_4 0xfc30 +#define PLA_BP_5 0xfc32 +#define PLA_BP_6 0xfc34 +#define PLA_BP_7 0xfc36 + +#define USB_DEV_STAT 0xb808 +#define USB_USB_CTRL 0xd406 +#define USB_PHY_CTRL 0xd408 +#define USB_TX_AGG 0xd40a +#define USB_RX_BUF_TH 0xd40c +#define USB_USB_TIMER 0xd428 +#define USB_PM_CTRL_STATUS 0xd432 +#define USB_TX_DMA 0xd434 +#define USB_UPS_CTRL 0xd800 +#define USB_BP_BA 0xfc26 +#define USB_BP_0 0xfc28 +#define USB_BP_1 0xfc2a +#define USB_BP_2 0xfc2c +#define USB_BP_3 0xfc2e +#define USB_BP_4 0xfc30 +#define USB_BP_5 0xfc32 +#define USB_BP_6 0xfc34 +#define USB_BP_7 0xfc36 + +/* OCP Registers */ +#define OCP_ALDPS_CONFIG 0x2010 +#define OCP_EEE_CONFIG1 0x2080 +#define OCP_EEE_CONFIG2 0x2092 +#define OCP_EEE_CONFIG3 0x2094 +#define OCP_EEE_AR 0xa41a +#define OCP_EEE_DATA 0xa41c + +/* PLA_RCR */ +#define RCR_AAP 0x00000001 +#define RCR_APM 0x00000002 +#define RCR_AM 0x00000004 +#define RCR_AB 0x00000008 +#define RCR_ACPT_ALL (RCR_AAP | RCR_APM | RCR_AM | RCR_AB) + +/* PLA_RXFIFO_CTRL0 */ +#define RXFIFO_THR1_NORMAL 0x00080002 +#define RXFIFO_THR1_OOB 0x01800003 + +/* PLA_RXFIFO_CTRL1 */ +#define RXFIFO_THR2_FULL 0x00000060 +#define RXFIFO_THR2_HIGH 0x00000038 +#define RXFIFO_THR2_OOB 0x0000004a + +/* PLA_RXFIFO_CTRL2 */ +#define RXFIFO_THR3_FULL 0x00000078 +#define RXFIFO_THR3_HIGH 0x00000048 +#define RXFIFO_THR3_OOB 0x0000005a + +/* PLA_TXFIFO_CTRL */ +#define TXFIFO_THR_NORMAL 0x00400008 + +/* PLA_FMC */ +#define FMC_FCR_MCU_EN 0x0001 + +/* PLA_EEEP_CR */ +#define EEEP_CR_EEEP_TX 0x0002 + +/* PLA_TCR0 */ +#define TCR0_TX_EMPTY 0x0800 +#define TCR0_AUTO_FIFO 0x0080 + +/* PLA_TCR1 */ +#define VERSION_MASK 0x7cf0 + +/* PLA_CR */ +#define CR_RST 0x10 +#define CR_RE 0x08 +#define CR_TE 0x04 + +/* PLA_CRWECR */ +#define CRWECR_NORAML 0x00 +#define CRWECR_CONFIG 0xc0 + +/* PLA_OOB_CTRL */ +#define NOW_IS_OOB 0x80 +#define TXFIFO_EMPTY 0x20 +#define RXFIFO_EMPTY 0x10 +#define LINK_LIST_READY 0x02 +#define DIS_MCU_CLROOB 0x01 +#define FIFO_EMPTY (TXFIFO_EMPTY | RXFIFO_EMPTY) + +/* PLA_MISC_1 */ +#define RXDY_GATED_EN 0x0008 + +/* PLA_SFF_STS_7 */ +#define RE_INIT_LL 0x8000 +#define MCU_BORW_EN 0x4000 + +/* PLA_CPCR */ +#define CPCR_RX_VLAN 0x0040 + +/* PLA_CFG_WOL */ +#define MAGIC_EN 0x0001 + +/* PAL_BDC_CR */ +#define ALDPS_PROXY_MODE 0x0001 + +/* PLA_CONFIG5 */ +#define LAN_WAKE_EN 0x0002 + +/* PLA_LED_FEATURE */ +#define LED_MODE_MASK 0x0700 + +/* PLA_PHY_PWR */ +#define TX_10M_IDLE_EN 0x0080 +#define PFM_PWM_SWITCH 0x0040 + +/* PLA_MAC_PWR_CTRL */ +#define D3_CLK_GATED_EN 0x00004000 +#define MCU_CLK_RATIO 0x07010f07 +#define MCU_CLK_RATIO_MASK 0x0f0f0f0f + +/* PLA_GPHY_INTR_IMR */ +#define GPHY_STS_MSK 0x0001 +#define SPEED_DOWN_MSK 0x0002 +#define SPDWN_RXDV_MSK 0x0004 +#define SPDWN_LINKCHG_MSK 0x0008 + +/* PLA_PHYAR */ +#define PHYAR_FLAG 0x80000000 + +/* PLA_EEE_CR */ +#define EEE_RX_EN 0x0001 +#define EEE_TX_EN 0x0002 + +/* USB_DEV_STAT */ +#define STAT_SPEED_MASK 0x0006 +#define STAT_SPEED_HIGH 0x0000 +#define STAT_SPEED_FULL 0x0001 + +/* USB_TX_AGG */ +#define TX_AGG_MAX_THRESHOLD 0x03 + +/* USB_RX_BUF_TH */ +#define RX_BUF_THR 0x7a120180 + +/* USB_TX_DMA */ +#define TEST_MODE_DISABLE 0x00000001 +#define TX_SIZE_ADJUST1 0x00000100 + +/* USB_UPS_CTRL */ +#define POWER_CUT 0x0100 + +/* USB_PM_CTRL_STATUS */ +#define RWSUME_INDICATE 0x0001 + +/* USB_USB_CTRL */ +#define RX_AGG_DISABLE 0x0010 + +/* OCP_ALDPS_CONFIG */ +#define ENPWRSAVE 0x8000 +#define ENPDNPS 0x0200 +#define LINKENA 0x0100 +#define DIS_SDSAVE 0x0010 + +/* OCP_EEE_CONFIG1 */ +#define RG_TXLPI_MSK_HFDUP 0x8000 +#define RG_MATCLR_EN 0x4000 +#define EEE_10_CAP 0x2000 +#define EEE_NWAY_EN 0x1000 +#define TX_QUIET_EN 0x0200 +#define RX_QUIET_EN 0x0100 +#define SDRISETIME 0x0010 /* bit 4 ~ 6 */ +#define RG_RXLPI_MSK_HFDUP 0x0008 +#define SDFALLTIME 0x0007 /* bit 0 ~ 2 */ + +/* OCP_EEE_CONFIG2 */ +#define RG_LPIHYS_NUM 0x7000 /* bit 12 ~ 15 */ +#define RG_DACQUIET_EN 0x0400 +#define RG_LDVQUIET_EN 0x0200 +#define RG_CKRSEL 0x0020 +#define RG_EEEPRG_EN 0x0010 + +/* OCP_EEE_CONFIG3 */ +#define FST_SNR_EYE_R 0x1500 /* bit 7 ~ 15 */ +#define RG_LFS_SEL 0x0060 /* bit 6 ~ 5 */ +#define MSK_PH 0x0006 /* bit 0 ~ 3 */ + +/* OCP_EEE_AR */ +/* bit[15:14] function */ +#define FUN_ADDR 0x0000 +#define FUN_DATA 0x4000 +/* bit[4:0] device addr */ +#define DEVICE_ADDR 0x0007 + +/* OCP_EEE_DATA */ +#define EEE_ADDR 0x003C +#define EEE_DATA 0x0002 + +enum rtl_register_content { + _100bps = 0x08, + _10bps = 0x04, + LINK_STATUS = 0x02, + FULL_DUP = 0x01, +}; + +#define RTL8152_REQT_READ 0xc0 +#define RTL8152_REQT_WRITE 0x40 +#define RTL8152_REQ_GET_REGS 0x05 +#define RTL8152_REQ_SET_REGS 0x05 + +#define BYTE_EN_DWORD 0xff +#define BYTE_EN_WORD 0x33 +#define BYTE_EN_BYTE 0x11 +#define BYTE_EN_SIX_BYTES 0x3f +#define BYTE_EN_START_MASK 0x0f +#define BYTE_EN_END_MASK 0xf0 + +#define RTL8152_RMS (VLAN_ETH_FRAME_LEN + VLAN_HLEN) +#define RTL8152_TX_TIMEOUT (HZ) + +/* rtl8152 flags */ +enum rtl8152_flags { + RTL8152_UNPLUG = 0, + RX_URB_FAIL, + RTL8152_SET_RX_MODE, + WORK_ENABLE +}; + +/* Define these values to match your device */ +#define VENDOR_ID_REALTEK 0x0bda +#define PRODUCT_ID_RTL8152 0x8152 + +#define MCU_TYPE_PLA 0x0100 +#define MCU_TYPE_USB 0x0000 + +struct rx_desc { + u32 opts1; +#define RX_LEN_MASK 0x7fff + u32 opts2; + u32 opts3; + u32 opts4; + u32 opts5; + u32 opts6; +}; + +struct tx_desc { + u32 opts1; +#define TX_FS (1 << 31) /* First segment of a packet */ +#define TX_LS (1 << 30) /* Final segment of a packet */ +#define TX_LEN_MASK 0xffff + u32 opts2; +}; + +struct r8152 { + unsigned long flags; + struct usb_device *udev; + struct tasklet_struct tl; + struct net_device *netdev; + struct urb *rx_urb, *tx_urb; + struct sk_buff *tx_skb, *rx_skb; + struct delayed_work schedule; + struct mii_if_info mii; + u32 msg_enable; + u16 ocp_base; + u8 version; + u8 speed; +}; + +enum rtl_version { + RTL_VER_UNKNOWN = 0, + RTL_VER_01, + RTL_VER_02 +}; + +/* Maximum number of multicast addresses to filter (vs. Rx-all-multicast). + * The RTL chips use a 64 element hash table based on the Ethernet CRC. + */ +static const int multicast_filter_limit = 32; + +static +int get_registers(struct r8152 *tp, u16 value, u16 index, u16 size, void *data) +{ + return usb_control_msg(tp->udev, usb_rcvctrlpipe(tp->udev, 0), + RTL8152_REQ_GET_REGS, RTL8152_REQT_READ, + value, index, data, size, 500); +} + +static +int set_registers(struct r8152 *tp, u16 value, u16 index, u16 size, void *data) +{ + return usb_control_msg(tp->udev, usb_sndctrlpipe(tp->udev, 0), + RTL8152_REQ_SET_REGS, RTL8152_REQT_WRITE, + value, index, data, size, 500); +} + +static int generic_ocp_read(struct r8152 *tp, u16 index, u16 size, + void *data, u16 type) +{ + u16 limit = 64; + int ret = 0; + + if (test_bit(RTL8152_UNPLUG, &tp->flags)) + return -ENODEV; + + /* both size and indix must be 4 bytes align */ + if ((size & 3) || !size || (index & 3) || !data) + return -EPERM; + + if ((u32)index + (u32)size > 0xffff) + return -EPERM; + + while (size) { + if (size > limit) { + ret = get_registers(tp, index, type, limit, data); + if (ret < 0) + break; + + index += limit; + data += limit; + size -= limit; + } else { + ret = get_registers(tp, index, type, size, data); + if (ret < 0) + break; + + index += size; + data += size; + size = 0; + break; + } + } + + return ret; +} + +static int generic_ocp_write(struct r8152 *tp, u16 index, u16 byteen, + u16 size, void *data, u16 type) +{ + int ret; + u16 byteen_start, byteen_end, byen; + u16 limit = 512; + + if (test_bit(RTL8152_UNPLUG, &tp->flags)) + return -ENODEV; + + /* both size and indix must be 4 bytes align */ + if ((size & 3) || !size || (index & 3) || !data) + return -EPERM; + + if ((u32)index + (u32)size > 0xffff) + return -EPERM; + + byteen_start = byteen & BYTE_EN_START_MASK; + byteen_end = byteen & BYTE_EN_END_MASK; + + byen = byteen_start | (byteen_start << 4); + ret = set_registers(tp, index, type | byen, 4, data); + if (ret < 0) + goto error1; + + index += 4; + data += 4; + size -= 4; + + if (size) { + size -= 4; + + while (size) { + if (size > limit) { + ret = set_registers(tp, index, + type | BYTE_EN_DWORD, + limit, data); + if (ret < 0) + goto error1; + + index += limit; + data += limit; + size -= limit; + } else { + ret = set_registers(tp, index, + type | BYTE_EN_DWORD, + size, data); + if (ret < 0) + goto error1; + + index += size; + data += size; + size = 0; + break; + } + } + + byen = byteen_end | (byteen_end >> 4); + ret = set_registers(tp, index, type | byen, 4, data); + if (ret < 0) + goto error1; + } + +error1: + return ret; +} + +static inline +int pla_ocp_read(struct r8152 *tp, u16 index, u16 size, void *data) +{ + return generic_ocp_read(tp, index, size, data, MCU_TYPE_PLA); +} + +static inline +int pla_ocp_write(struct r8152 *tp, u16 index, u16 byteen, u16 size, void *data) +{ + return generic_ocp_write(tp, index, byteen, size, data, MCU_TYPE_PLA); +} + +static inline +int usb_ocp_read(struct r8152 *tp, u16 index, u16 size, void *data) +{ + return generic_ocp_read(tp, index, size, data, MCU_TYPE_USB); +} + +static inline +int usb_ocp_write(struct r8152 *tp, u16 index, u16 byteen, u16 size, void *data) +{ + return generic_ocp_write(tp, index, byteen, size, data, MCU_TYPE_USB); +} + +static u32 ocp_read_dword(struct r8152 *tp, u16 type, u16 index) +{ + u32 data; + + if (type == MCU_TYPE_PLA) + pla_ocp_read(tp, index, sizeof(data), &data); + else + usb_ocp_read(tp, index, sizeof(data), &data); + + return __le32_to_cpu(data); +} + +static void ocp_write_dword(struct r8152 *tp, u16 type, u16 index, u32 data) +{ + if (type == MCU_TYPE_PLA) + pla_ocp_write(tp, index, BYTE_EN_DWORD, sizeof(data), &data); + else + usb_ocp_write(tp, index, BYTE_EN_DWORD, sizeof(data), &data); +} + +static u16 ocp_read_word(struct r8152 *tp, u16 type, u16 index) +{ + u32 data; + u8 shift = index & 2; + + index &= ~3; + + if (type == MCU_TYPE_PLA) + pla_ocp_read(tp, index, sizeof(data), &data); + else + usb_ocp_read(tp, index, sizeof(data), &data); + + data = __le32_to_cpu(data); + data >>= (shift * 8); + data &= 0xffff; + + return (u16)data; +} + +static void ocp_write_word(struct r8152 *tp, u16 type, u16 index, u32 data) +{ + u32 tmp, mask = 0xffff; + u16 byen = BYTE_EN_WORD; + u8 shift = index & 2; + + data &= mask; + + if (index & 2) { + byen <<= shift; + mask <<= (shift * 8); + data <<= (shift * 8); + index &= ~3; + } + + if (type == MCU_TYPE_PLA) + pla_ocp_read(tp, index, sizeof(tmp), &tmp); + else + usb_ocp_read(tp, index, sizeof(tmp), &tmp); + + tmp = __le32_to_cpu(tmp) & ~mask; + tmp |= data; + tmp = __cpu_to_le32(tmp); + + if (type == MCU_TYPE_PLA) + pla_ocp_write(tp, index, byen, sizeof(tmp), &tmp); + else + usb_ocp_write(tp, index, byen, sizeof(tmp), &tmp); +} + +static u8 ocp_read_byte(struct r8152 *tp, u16 type, u16 index) +{ + u32 data; + u8 shift = index & 3; + + index &= ~3; + + if (type == MCU_TYPE_PLA) + pla_ocp_read(tp, index, sizeof(data), &data); + else + usb_ocp_read(tp, index, sizeof(data), &data); + + data = __le32_to_cpu(data); + data >>= (shift * 8); + data &= 0xff; + + return (u8)data; +} + +static void ocp_write_byte(struct r8152 *tp, u16 type, u16 index, u32 data) +{ + u32 tmp, mask = 0xff; + u16 byen = BYTE_EN_BYTE; + u8 shift = index & 3; + + data &= mask; + + if (index & 3) { + byen <<= shift; + mask <<= (shift * 8); + data <<= (shift * 8); + index &= ~3; + } + + if (type == MCU_TYPE_PLA) + pla_ocp_read(tp, index, sizeof(tmp), &tmp); + else + usb_ocp_read(tp, index, sizeof(tmp), &tmp); + + tmp = __le32_to_cpu(tmp) & ~mask; + tmp |= data; + tmp = __cpu_to_le32(tmp); + + if (type == MCU_TYPE_PLA) + pla_ocp_write(tp, index, byen, sizeof(tmp), &tmp); + else + usb_ocp_write(tp, index, byen, sizeof(tmp), &tmp); +} + +static void r8152_mdio_write(struct r8152 *tp, u32 reg_addr, u32 value) +{ + u32 ocp_data; + int i; + + ocp_data = PHYAR_FLAG | ((reg_addr & 0x1f) << 16) | + (value & 0xffff); + + ocp_write_dword(tp, MCU_TYPE_PLA, PLA_PHYAR, ocp_data); + + for (i = 20; i > 0; i--) { + udelay(25); + ocp_data = ocp_read_dword(tp, MCU_TYPE_PLA, PLA_PHYAR); + if (!(ocp_data & PHYAR_FLAG)) + break; + } + udelay(20); +} + +static int r8152_mdio_read(struct r8152 *tp, u32 reg_addr) +{ + u32 ocp_data; + int i; + + ocp_data = (reg_addr & 0x1f) << 16; + ocp_write_dword(tp, MCU_TYPE_PLA, PLA_PHYAR, ocp_data); + + for (i = 20; i > 0; i--) { + udelay(25); + ocp_data = ocp_read_dword(tp, MCU_TYPE_PLA, PLA_PHYAR); + if (ocp_data & PHYAR_FLAG) + break; + } + udelay(20); + + if (!(ocp_data & PHYAR_FLAG)) + return -EAGAIN; + + return (u16)(ocp_data & 0xffff); +} + +static int read_mii_word(struct net_device *netdev, int phy_id, int reg) +{ + struct r8152 *tp = netdev_priv(netdev); + + if (phy_id != R8152_PHY_ID) + return -EINVAL; + + return r8152_mdio_read(tp, reg); +} + +static +void write_mii_word(struct net_device *netdev, int phy_id, int reg, int val) +{ + struct r8152 *tp = netdev_priv(netdev); + + if (phy_id != R8152_PHY_ID) + return; + + r8152_mdio_write(tp, reg, val); +} + +static void ocp_reg_write(struct r8152 *tp, u16 addr, u16 data) +{ + u16 ocp_base, ocp_index; + + ocp_base = addr & 0xf000; + if (ocp_base != tp->ocp_base) { + ocp_write_word(tp, MCU_TYPE_PLA, PLA_OCP_GPHY_BASE, ocp_base); + tp->ocp_base = ocp_base; + } + + ocp_index = (addr & 0x0fff) | 0xb000; + ocp_write_word(tp, MCU_TYPE_PLA, ocp_index, data); +} + +static inline void set_ethernet_addr(struct r8152 *tp) +{ + struct net_device *dev = tp->netdev; + u8 *node_id; + + node_id = kmalloc(sizeof(u8) * 8, GFP_KERNEL); + if (!node_id) { + netif_err(tp, probe, dev, "out of memory"); + return; + } + + if (pla_ocp_read(tp, PLA_IDR, sizeof(u8) * 8, node_id) < 0) + netif_notice(tp, probe, dev, "inet addr fail\n"); + else { + memcpy(dev->dev_addr, node_id, dev->addr_len); + memcpy(dev->perm_addr, dev->dev_addr, dev->addr_len); + } + kfree(node_id); +} + +static int rtl8152_set_mac_address(struct net_device *netdev, void *p) +{ + struct r8152 *tp = netdev_priv(netdev); + struct sockaddr *addr = p; + + if (!is_valid_ether_addr(addr->sa_data)) + return -EADDRNOTAVAIL; + + memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len); + + ocp_write_byte(tp, MCU_TYPE_PLA, PLA_CRWECR, CRWECR_CONFIG); + pla_ocp_write(tp, PLA_IDR, BYTE_EN_SIX_BYTES, 8, addr->sa_data); + ocp_write_byte(tp, MCU_TYPE_PLA, PLA_CRWECR, CRWECR_NORAML); + + return 0; +} + +static int alloc_all_urbs(struct r8152 *tp) +{ + tp->rx_urb = usb_alloc_urb(0, GFP_KERNEL); + if (!tp->rx_urb) + return 0; + tp->tx_urb = usb_alloc_urb(0, GFP_KERNEL); + if (!tp->tx_urb) { + usb_free_urb(tp->rx_urb); + return 0; + } + + return 1; +} + +static void free_all_urbs(struct r8152 *tp) +{ + usb_free_urb(tp->rx_urb); + usb_free_urb(tp->tx_urb); +} + +static struct net_device_stats *rtl8152_get_stats(struct net_device *dev) +{ + return &dev->stats; +} + +static void read_bulk_callback(struct urb *urb) +{ + struct r8152 *tp; + unsigned pkt_len; + struct sk_buff *skb; + struct net_device *netdev; + struct net_device_stats *stats; + int status = urb->status; + int result; + struct rx_desc *rx_desc; + + tp = urb->context; + if (!tp) + return; + if (test_bit(RTL8152_UNPLUG, &tp->flags)) + return; + netdev = tp->netdev; + if (!netif_device_present(netdev)) + return; + + stats = rtl8152_get_stats(netdev); + switch (status) { + case 0: + break; + case -ESHUTDOWN: + set_bit(RTL8152_UNPLUG, &tp->flags); + netif_device_detach(tp->netdev); + case -ENOENT: + return; /* the urb is in unlink state */ + case -ETIME: + pr_warn_ratelimited("may be reset is needed?..\n"); + goto goon; + default: + pr_warn_ratelimited("Rx status %d\n", status); + goto goon; + } + + /* protect against short packets (tell me why we got some?!?) */ + if (urb->actual_length < sizeof(*rx_desc)) + goto goon; + + + rx_desc = (struct rx_desc *)urb->transfer_buffer; + pkt_len = le32_to_cpu(rx_desc->opts1) & RX_LEN_MASK; + if (urb->actual_length < sizeof(struct rx_desc) + pkt_len) + goto goon; + + skb = netdev_alloc_skb_ip_align(netdev, pkt_len); + if (!skb) + goto goon; + + memcpy(skb->data, tp->rx_skb->data + sizeof(struct rx_desc), pkt_len); + skb_put(skb, pkt_len); + skb->protocol = eth_type_trans(skb, netdev); + netif_rx(skb); + stats->rx_packets++; + stats->rx_bytes += pkt_len; +goon: + usb_fill_bulk_urb(tp->rx_urb, tp->udev, usb_rcvbulkpipe(tp->udev, 1), + tp->rx_skb->data, RTL8152_RMS + sizeof(struct rx_desc), + (usb_complete_t)read_bulk_callback, tp); + result = usb_submit_urb(tp->rx_urb, GFP_ATOMIC); + if (result == -ENODEV) { + netif_device_detach(tp->netdev); + } else if (result) { + set_bit(RX_URB_FAIL, &tp->flags); + goto resched; + } else { + clear_bit(RX_URB_FAIL, &tp->flags); + } + + return; +resched: + tasklet_schedule(&tp->tl); +} + +static void rx_fixup(unsigned long data) +{ + struct r8152 *tp; + int status; + + tp = (struct r8152 *)data; + if (!test_bit(WORK_ENABLE, &tp->flags)) + return; + + status = usb_submit_urb(tp->rx_urb, GFP_ATOMIC); + if (status == -ENODEV) { + netif_device_detach(tp->netdev); + } else if (status) { + set_bit(RX_URB_FAIL, &tp->flags); + goto tlsched; + } else { + clear_bit(RX_URB_FAIL, &tp->flags); + } + + return; +tlsched: + tasklet_schedule(&tp->tl); +} + +static void write_bulk_callback(struct urb *urb) +{ + struct r8152 *tp; + int status = urb->status; + + tp = urb->context; + if (!tp) + return; + dev_kfree_skb_irq(tp->tx_skb); + if (!netif_device_present(tp->netdev)) + return; + if (status) + dev_info(&urb->dev->dev, "%s: Tx status %d\n", + tp->netdev->name, status); + tp->netdev->trans_start = jiffies; + netif_wake_queue(tp->netdev); +} + +static void rtl8152_tx_timeout(struct net_device *netdev) +{ + struct r8152 *tp = netdev_priv(netdev); + struct net_device_stats *stats = rtl8152_get_stats(netdev); + netif_warn(tp, tx_err, netdev, "Tx timeout.\n"); + usb_unlink_urb(tp->tx_urb); + stats->tx_errors++; +} + +static void rtl8152_set_rx_mode(struct net_device *netdev) +{ + struct r8152 *tp = netdev_priv(netdev); + + if (tp->speed & LINK_STATUS) + set_bit(RTL8152_SET_RX_MODE, &tp->flags); +} + +static void _rtl8152_set_rx_mode(struct net_device *netdev) +{ + struct r8152 *tp = netdev_priv(netdev); + u32 tmp, *mc_filter; /* Multicast hash filter */ + u32 ocp_data; + + mc_filter = kmalloc(sizeof(u32) * 2, GFP_KERNEL); + if (!mc_filter) { + netif_err(tp, link, netdev, "out of memory"); + return; + } + + clear_bit(RTL8152_SET_RX_MODE, &tp->flags); + netif_stop_queue(netdev); + ocp_data = ocp_read_dword(tp, MCU_TYPE_PLA, PLA_RCR); + ocp_data &= ~RCR_ACPT_ALL; + ocp_data |= RCR_AB | RCR_APM; + + if (netdev->flags & IFF_PROMISC) { + /* Unconditionally log net taps. */ + netif_notice(tp, link, netdev, "Promiscuous mode enabled\n"); + ocp_data |= RCR_AM | RCR_AAP; + mc_filter[1] = mc_filter[0] = 0xffffffff; + } else if ((netdev_mc_count(netdev) > multicast_filter_limit) || + (netdev->flags & IFF_ALLMULTI)) { + /* Too many to filter perfectly -- accept all multicasts. */ + ocp_data |= RCR_AM; + mc_filter[1] = mc_filter[0] = 0xffffffff; + } else { + struct netdev_hw_addr *ha; + + mc_filter[1] = mc_filter[0] = 0; + netdev_for_each_mc_addr(ha, netdev) { + int bit_nr = ether_crc(ETH_ALEN, ha->addr) >> 26; + mc_filter[bit_nr >> 5] |= 1 << (bit_nr & 31); + ocp_data |= RCR_AM; + } + } + + tmp = mc_filter[0]; + mc_filter[0] = __cpu_to_le32(swab32(mc_filter[1])); + mc_filter[1] = __cpu_to_le32(swab32(tmp)); + + pla_ocp_write(tp, PLA_MAR, BYTE_EN_DWORD, sizeof(u32) * 2, mc_filter); + ocp_write_dword(tp, MCU_TYPE_PLA, PLA_RCR, ocp_data); + netif_wake_queue(netdev); + kfree(mc_filter); +} + +static netdev_tx_t rtl8152_start_xmit(struct sk_buff *skb, + struct net_device *netdev) +{ + struct r8152 *tp = netdev_priv(netdev); + struct net_device_stats *stats = rtl8152_get_stats(netdev); + struct tx_desc *tx_desc; + int len, res; + + netif_stop_queue(netdev); + len = skb->len; + if (skb_header_cloned(skb) || skb_headroom(skb) < sizeof(*tx_desc)) { + struct sk_buff *tx_skb; + + tx_skb = skb_copy_expand(skb, sizeof(*tx_desc), 0, GFP_ATOMIC); + dev_kfree_skb_any(skb); + if (!tx_skb) { + stats->tx_dropped++; + netif_wake_queue(netdev); |