diff options
Diffstat (limited to 'kernel/drivers/net/usb')
22 files changed, 5502 insertions, 468 deletions
diff --git a/kernel/drivers/net/usb/Kconfig b/kernel/drivers/net/usb/Kconfig index 7ba8d0885..7f83504df 100644 --- a/kernel/drivers/net/usb/Kconfig +++ b/kernel/drivers/net/usb/Kconfig @@ -106,6 +106,18 @@ config USB_RTL8152 To compile this driver as a module, choose M here: the module will be called r8152. +config USB_LAN78XX + tristate "Microchip LAN78XX Based USB Ethernet Adapters" + select MII + select PHYLIB + select MICROCHIP_PHY + help + This option adds support for Microchip LAN78XX based USB 2 + & USB 3 10/100/1000 Ethernet adapters. + + To compile this driver as a module, choose M here: the + module will be called lan78xx. + config USB_USBNET tristate "Multi-purpose USB Networking Framework" select MII @@ -154,6 +166,7 @@ config USB_NET_AX8817X * Aten UC210T * ASIX AX88172 * Billionton Systems, USB2AR + * Billionton Systems, GUSB2AM-1G-B * Buffalo LUA-U2-KTX * Corega FEther USB2-TX * D-Link DUB-E100 @@ -531,7 +544,7 @@ config USB_NET_INT51X1 config USB_CDC_PHONET tristate "CDC Phonet support" - depends on PHONET + depends on PHONET && USB_USBNET help Choose this option to support the Phonet interface to a Nokia cellular modem, as found on most Nokia handsets with the @@ -573,4 +586,15 @@ config USB_VL600 http://ubuntuforums.org/showpost.php?p=10589647&postcount=17 +config USB_NET_CH9200 + tristate "QingHeng CH9200 USB ethernet support" + depends on USB_USBNET + select MII + help + Choose this option if you have a USB ethernet adapter with a QinHeng + CH9200 chipset. + + To compile this driver as a module, choose M here: the + module will be called ch9200. + endif # USB_NET_DRIVERS diff --git a/kernel/drivers/net/usb/Makefile b/kernel/drivers/net/usb/Makefile index e2797f1e1..b5f04068d 100644 --- a/kernel/drivers/net/usb/Makefile +++ b/kernel/drivers/net/usb/Makefile @@ -8,6 +8,7 @@ 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-$(CONFIG_USB_LAN78XX) += lan78xx.o obj-$(CONFIG_USB_NET_AX8817X) += asix.o asix-y := asix_devices.o asix_common.o ax88172a.o obj-$(CONFIG_USB_NET_AX88179_178A) += ax88179_178a.o @@ -37,4 +38,4 @@ obj-$(CONFIG_USB_NET_HUAWEI_CDC_NCM) += huawei_cdc_ncm.o obj-$(CONFIG_USB_VL600) += lg-vl600.o obj-$(CONFIG_USB_NET_QMI_WWAN) += qmi_wwan.o obj-$(CONFIG_USB_NET_CDC_MBIM) += cdc_mbim.o - +obj-$(CONFIG_USB_NET_CH9200) += ch9200.o diff --git a/kernel/drivers/net/usb/asix.h b/kernel/drivers/net/usb/asix.h index 5d049d00c..a2d3ea6ef 100644 --- a/kernel/drivers/net/usb/asix.h +++ b/kernel/drivers/net/usb/asix.h @@ -168,7 +168,7 @@ struct asix_data { struct asix_rx_fixup_info { struct sk_buff *ax_skb; u32 header; - u16 size; + u16 remaining; bool split_head; }; diff --git a/kernel/drivers/net/usb/asix_common.c b/kernel/drivers/net/usb/asix_common.c index 75d6f2672..bd9acff1e 100644 --- a/kernel/drivers/net/usb/asix_common.c +++ b/kernel/drivers/net/usb/asix_common.c @@ -54,69 +54,101 @@ int asix_rx_fixup_internal(struct usbnet *dev, struct sk_buff *skb, struct asix_rx_fixup_info *rx) { int offset = 0; + u16 size; + + /* When an Ethernet frame spans multiple URB socket buffers, + * do a sanity test for the Data header synchronisation. + * Attempt to detect the situation of the previous socket buffer having + * been truncated or a socket buffer was missing. These situations + * cause a discontinuity in the data stream and therefore need to avoid + * appending bad data to the end of the current netdev socket buffer. + * Also avoid unnecessarily discarding a good current netdev socket + * buffer. + */ + if (rx->remaining && (rx->remaining + sizeof(u32) <= skb->len)) { + offset = ((rx->remaining + 1) & 0xfffe) + sizeof(u32); + rx->header = get_unaligned_le32(skb->data + offset); + offset = 0; + + size = (u16)(rx->header & 0x7ff); + if (size != ((~rx->header >> 16) & 0x7ff)) { + netdev_err(dev->net, "asix_rx_fixup() Data Header synchronisation was lost, remaining %d\n", + rx->remaining); + if (rx->ax_skb) { + kfree_skb(rx->ax_skb); + rx->ax_skb = NULL; + /* Discard the incomplete netdev Ethernet frame + * and assume the Data header is at the start of + * the current URB socket buffer. + */ + } + rx->remaining = 0; + } + } while (offset + sizeof(u16) <= skb->len) { - u16 remaining = 0; + u16 copy_length; unsigned char *data; - if (!rx->size) { - if ((skb->len - offset == sizeof(u16)) || - rx->split_head) { - if(!rx->split_head) { - rx->header = get_unaligned_le16( - skb->data + offset); - rx->split_head = true; - offset += sizeof(u16); - break; - } else { - rx->header |= (get_unaligned_le16( - skb->data + offset) - << 16); - rx->split_head = false; - offset += sizeof(u16); - } + if (!rx->remaining) { + if (skb->len - offset == sizeof(u16)) { + rx->header = get_unaligned_le16( + skb->data + offset); + rx->split_head = true; + offset += sizeof(u16); + break; + } + + if (rx->split_head == true) { + rx->header |= (get_unaligned_le16( + skb->data + offset) << 16); + rx->split_head = false; + offset += sizeof(u16); } else { rx->header = get_unaligned_le32(skb->data + offset); offset += sizeof(u32); } - /* get the packet length */ - rx->size = (u16) (rx->header & 0x7ff); - if (rx->size != ((~rx->header >> 16) & 0x7ff)) { + /* take frame length from Data header 32-bit word */ + size = (u16)(rx->header & 0x7ff); + if (size != ((~rx->header >> 16) & 0x7ff)) { netdev_err(dev->net, "asix_rx_fixup() Bad Header Length 0x%x, offset %d\n", rx->header, offset); - rx->size = 0; return 0; } - rx->ax_skb = netdev_alloc_skb_ip_align(dev->net, - rx->size); - if (!rx->ax_skb) + if (size > dev->net->mtu + ETH_HLEN + VLAN_HLEN) { + netdev_err(dev->net, "asix_rx_fixup() Bad RX Length %d\n", + size); return 0; - } + } - if (rx->size > dev->net->mtu + ETH_HLEN + VLAN_HLEN) { - netdev_err(dev->net, "asix_rx_fixup() Bad RX Length %d\n", - rx->size); - kfree_skb(rx->ax_skb); - rx->ax_skb = NULL; - rx->size = 0U; + /* Sometimes may fail to get a netdev socket buffer but + * continue to process the URB socket buffer so that + * synchronisation of the Ethernet frame Data header + * word is maintained. + */ + rx->ax_skb = netdev_alloc_skb_ip_align(dev->net, size); - return 0; + rx->remaining = size; } - if (rx->size > skb->len - offset) { - remaining = rx->size - (skb->len - offset); - rx->size = skb->len - offset; + if (rx->remaining > skb->len - offset) { + copy_length = skb->len - offset; + rx->remaining -= copy_length; + } else { + copy_length = rx->remaining; + rx->remaining = 0; } - data = skb_put(rx->ax_skb, rx->size); - memcpy(data, skb->data + offset, rx->size); - if (!remaining) - usbnet_skb_return(dev, rx->ax_skb); + if (rx->ax_skb) { + data = skb_put(rx->ax_skb, copy_length); + memcpy(data, skb->data + offset, copy_length); + if (!rx->remaining) + usbnet_skb_return(dev, rx->ax_skb); + } - offset += (rx->size + 1) & 0xfffe; - rx->size = remaining; + offset += (copy_length + 1) & 0xfffe; } if (skb->len != offset) { @@ -556,7 +588,6 @@ void asix_get_drvinfo(struct net_device *net, struct ethtool_drvinfo *info) usbnet_get_drvinfo(net, info); strlcpy(info->driver, DRIVER_NAME, sizeof(info->driver)); strlcpy(info->version, DRIVER_VERSION, sizeof(info->version)); - info->eedump_len = AX_EEPROM_LEN; } int asix_set_mac_address(struct net_device *net, void *p) diff --git a/kernel/drivers/net/usb/asix_devices.c b/kernel/drivers/net/usb/asix_devices.c index 1173a24fe..5cabefc23 100644 --- a/kernel/drivers/net/usb/asix_devices.c +++ b/kernel/drivers/net/usb/asix_devices.c @@ -959,6 +959,10 @@ static const struct usb_device_id products [] = { USB_DEVICE (0x08dd, 0x90ff), .driver_info = (unsigned long) &ax8817x_info, }, { + // Billionton Systems, GUSB2AM-1G-B + USB_DEVICE(0x08dd, 0x0114), + .driver_info = (unsigned long) &ax88178_info, +}, { // ATEN UC210T USB_DEVICE (0x0557, 0x2009), .driver_info = (unsigned long) &ax8817x_info, diff --git a/kernel/drivers/net/usb/cdc-phonet.c b/kernel/drivers/net/usb/cdc-phonet.c index 415ce8b88..ff2270ead 100644 --- a/kernel/drivers/net/usb/cdc-phonet.c +++ b/kernel/drivers/net/usb/cdc-phonet.c @@ -340,32 +340,13 @@ static int usbpn_probe(struct usb_interface *intf, const struct usb_device_id *i u8 *data; int phonet = 0; int len, err; + struct usb_cdc_parsed_header hdr; data = intf->altsetting->extra; len = intf->altsetting->extralen; - while (len >= 3) { - u8 dlen = data[0]; - if (dlen < 3) - return -EINVAL; - - /* bDescriptorType */ - if (data[1] == USB_DT_CS_INTERFACE) { - /* bDescriptorSubType */ - switch (data[2]) { - case USB_CDC_UNION_TYPE: - if (union_header || dlen < 5) - break; - union_header = - (struct usb_cdc_union_desc *)data; - break; - case 0xAB: - phonet = 1; - break; - } - } - data += dlen; - len -= dlen; - } + cdc_parse_cdc_header(&hdr, intf, data, len); + union_header = hdr.usb_cdc_union_desc; + phonet = hdr.phonet_magic_present; if (!union_header || !phonet) return -EINVAL; diff --git a/kernel/drivers/net/usb/cdc_ether.c b/kernel/drivers/net/usb/cdc_ether.c index 4545e7884..3da70bf99 100644 --- a/kernel/drivers/net/usb/cdc_ether.c +++ b/kernel/drivers/net/usb/cdc_ether.c @@ -112,8 +112,7 @@ int usbnet_generic_cdc_bind(struct usbnet *dev, struct usb_interface *intf) int rndis; bool android_rndis_quirk = false; struct usb_driver *driver = driver_of(intf); - struct usb_cdc_mdlm_desc *desc = NULL; - struct usb_cdc_mdlm_detail_desc *detail = NULL; + struct usb_cdc_parsed_header header; if (sizeof(dev->data) < sizeof(*info)) return -EDOM; @@ -155,155 +154,88 @@ int usbnet_generic_cdc_bind(struct usbnet *dev, struct usb_interface *intf) memset(info, 0, sizeof(*info)); info->control = intf; - while (len > 3) { - if (buf[1] != USB_DT_CS_INTERFACE) - goto next_desc; - - /* use bDescriptorSubType to identify the CDC descriptors. - * We expect devices with CDC header and union descriptors. - * For CDC Ethernet we need the ethernet descriptor. - * For RNDIS, ignore two (pointless) CDC modem descriptors - * in favor of a complicated OID-based RPC scheme doing what - * CDC Ethernet achieves with a simple descriptor. - */ - switch (buf[2]) { - case USB_CDC_HEADER_TYPE: - if (info->header) { - dev_dbg(&intf->dev, "extra CDC header\n"); - goto bad_desc; - } - info->header = (void *) buf; - if (info->header->bLength != sizeof(*info->header)) { - dev_dbg(&intf->dev, "CDC header len %u\n", - info->header->bLength); - goto bad_desc; - } - break; - case USB_CDC_ACM_TYPE: - /* paranoia: disambiguate a "real" vendor-specific - * modem interface from an RNDIS non-modem. - */ - if (rndis) { - struct usb_cdc_acm_descriptor *acm; - - acm = (void *) buf; - if (acm->bmCapabilities) { - dev_dbg(&intf->dev, - "ACM capabilities %02x, " - "not really RNDIS?\n", - acm->bmCapabilities); - goto bad_desc; - } - } - break; - case USB_CDC_UNION_TYPE: - if (info->u) { - dev_dbg(&intf->dev, "extra CDC union\n"); - goto bad_desc; - } - info->u = (void *) buf; - if (info->u->bLength != sizeof(*info->u)) { - dev_dbg(&intf->dev, "CDC union len %u\n", - info->u->bLength); - goto bad_desc; - } - - /* we need a master/control interface (what we're - * probed with) and a slave/data interface; union - * descriptors sort this all out. - */ - info->control = usb_ifnum_to_if(dev->udev, - info->u->bMasterInterface0); - info->data = usb_ifnum_to_if(dev->udev, - info->u->bSlaveInterface0); - if (!info->control || !info->data) { - dev_dbg(&intf->dev, - "master #%u/%p slave #%u/%p\n", - info->u->bMasterInterface0, - info->control, - info->u->bSlaveInterface0, - info->data); - /* fall back to hard-wiring for RNDIS */ - if (rndis) { - android_rndis_quirk = true; - goto next_desc; - } - goto bad_desc; - } - if (info->control != intf) { - dev_dbg(&intf->dev, "bogus CDC Union\n"); - /* Ambit USB Cable Modem (and maybe others) - * interchanges master and slave interface. - */ - if (info->data == intf) { - info->data = info->control; - info->control = intf; - } else - goto bad_desc; - } - - /* some devices merge these - skip class check */ - if (info->control == info->data) - goto next_desc; - - /* a data interface altsetting does the real i/o */ - d = &info->data->cur_altsetting->desc; - if (d->bInterfaceClass != USB_CLASS_CDC_DATA) { - dev_dbg(&intf->dev, "slave class %u\n", - d->bInterfaceClass); - goto bad_desc; - } - break; - case USB_CDC_ETHERNET_TYPE: - if (info->ether) { - dev_dbg(&intf->dev, "extra CDC ether\n"); - goto bad_desc; - } - info->ether = (void *) buf; - if (info->ether->bLength != sizeof(*info->ether)) { - dev_dbg(&intf->dev, "CDC ether len %u\n", - info->ether->bLength); - goto bad_desc; - } - dev->hard_mtu = le16_to_cpu( - info->ether->wMaxSegmentSize); - /* because of Zaurus, we may be ignoring the host - * side link address we were given. - */ - break; - case USB_CDC_MDLM_TYPE: - if (desc) { - dev_dbg(&intf->dev, "extra MDLM descriptor\n"); - goto bad_desc; - } - - desc = (void *)buf; - - if (desc->bLength != sizeof(*desc)) - goto bad_desc; - - if (memcmp(&desc->bGUID, mbm_guid, 16)) - goto bad_desc; - break; - case USB_CDC_MDLM_DETAIL_TYPE: - if (detail) { - dev_dbg(&intf->dev, "extra MDLM detail descriptor\n"); - goto bad_desc; - } - - detail = (void *)buf; - - if (detail->bGuidDescriptorType == 0) { - if (detail->bLength < (sizeof(*detail) + 1)) - goto bad_desc; - } else - goto bad_desc; - break; + + cdc_parse_cdc_header(&header, intf, buf, len); + + info->u = header.usb_cdc_union_desc; + info->header = header.usb_cdc_header_desc; + info->ether = header.usb_cdc_ether_desc; + /* we need a master/control interface (what we're + * probed with) and a slave/data interface; union + * descriptors sort this all out. + */ + info->control = usb_ifnum_to_if(dev->udev, + info->u->bMasterInterface0); + info->data = usb_ifnum_to_if(dev->udev, + info->u->bSlaveInterface0); + if (!info->control || !info->data) { + dev_dbg(&intf->dev, + "master #%u/%p slave #%u/%p\n", + info->u->bMasterInterface0, + info->control, + info->u->bSlaveInterface0, + info->data); + /* fall back to hard-wiring for RNDIS */ + if (rndis) { + android_rndis_quirk = true; + goto skip; } -next_desc: - len -= buf[0]; /* bLength */ - buf += buf[0]; + goto bad_desc; } + if (info->control != intf) { + dev_dbg(&intf->dev, "bogus CDC Union\n"); + /* Ambit USB Cable Modem (and maybe others) + * interchanges master and slave interface. + */ + if (info->data == intf) { + info->data = info->control; + info->control = intf; + } else + goto bad_desc; + } + + /* some devices merge these - skip class check */ + if (info->control == info->data) + goto skip; + + /* a data interface altsetting does the real i/o */ + d = &info->data->cur_altsetting->desc; + if (d->bInterfaceClass != USB_CLASS_CDC_DATA) { + dev_dbg(&intf->dev, "slave class %u\n", + d->bInterfaceClass); + goto bad_desc; + } +skip: + if ( rndis && + header.usb_cdc_acm_descriptor && + header.usb_cdc_acm_descriptor->bmCapabilities) { + dev_dbg(&intf->dev, + "ACM capabilities %02x, not really RNDIS?\n", + header.usb_cdc_acm_descriptor->bmCapabilities); + goto bad_desc; + } + + if (header.usb_cdc_ether_desc) { + dev->hard_mtu = le16_to_cpu(info->ether->wMaxSegmentSize); + /* because of Zaurus, we may be ignoring the host + * side link address we were given. + */ + } + + if (header.usb_cdc_mdlm_desc && + memcmp(header.usb_cdc_mdlm_desc->bGUID, mbm_guid, 16)) { + dev_dbg(&intf->dev, "GUID doesn't match\n"); + goto bad_desc; + } + + if (header.usb_cdc_mdlm_detail_desc && + header.usb_cdc_mdlm_detail_desc->bLength < + (sizeof(struct usb_cdc_mdlm_detail_desc) + 1)) { + dev_dbg(&intf->dev, "Descriptor too short\n"); + goto bad_desc; + } + + /* Microsoft ActiveSync based and some regular RNDIS devices lack the * CDC descriptors, so we'll hard-wire the interfaces and not check @@ -523,6 +455,7 @@ static const struct driver_info wwan_info = { #define REALTEK_VENDOR_ID 0x0bda #define SAMSUNG_VENDOR_ID 0x04e8 #define LENOVO_VENDOR_ID 0x17ef +#define NVIDIA_VENDOR_ID 0x0955 static const struct usb_device_id products[] = { /* BLACKLIST !! @@ -710,6 +643,13 @@ static const struct usb_device_id products[] = { .driver_info = 0, }, +/* NVIDIA Tegra USB 3.0 Ethernet Adapters (based on Realtek RTL8153) */ +{ + USB_DEVICE_AND_INTERFACE_INFO(NVIDIA_VENDOR_ID, 0x09ff, USB_CLASS_COMM, + USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), + .driver_info = 0, +}, + /* WHITELIST!!! * * CDC Ether uses two interfaces, not necessarily consecutive. @@ -756,6 +696,11 @@ static const struct usb_device_id products[] = { USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), .driver_info = (kernel_ulong_t) &wwan_info, }, { + /* Dell DW5580 modules */ + USB_DEVICE_AND_INTERFACE_INFO(DELL_VENDOR_ID, 0x81ba, USB_CLASS_COMM, + USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), + .driver_info = (kernel_ulong_t)&wwan_info, +}, { USB_INTERFACE_INFO(USB_CLASS_COMM, USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE), .driver_info = (unsigned long) &cdc_info, diff --git a/kernel/drivers/net/usb/cdc_mbim.c b/kernel/drivers/net/usb/cdc_mbim.c index e4b7a47a8..bdd83d95e 100644 --- a/kernel/drivers/net/usb/cdc_mbim.c +++ b/kernel/drivers/net/usb/cdc_mbim.c @@ -100,7 +100,7 @@ static const struct net_device_ops cdc_mbim_netdev_ops = { .ndo_stop = usbnet_stop, .ndo_start_xmit = usbnet_start_xmit, .ndo_tx_timeout = usbnet_tx_timeout, - .ndo_change_mtu = usbnet_change_mtu, + .ndo_change_mtu = cdc_ncm_change_mtu, .ndo_set_mac_address = eth_mac_addr, .ndo_validate_addr = eth_validate_addr, .ndo_vlan_rx_add_vid = cdc_mbim_rx_add_vid, @@ -158,7 +158,7 @@ static int cdc_mbim_bind(struct usbnet *dev, struct usb_interface *intf) if (!cdc_ncm_comm_intf_is_mbim(intf->cur_altsetting)) goto err; - ret = cdc_ncm_bind_common(dev, intf, data_altsetting); + ret = cdc_ncm_bind_common(dev, intf, data_altsetting, dev->driver_info->data); if (ret) goto err; @@ -342,7 +342,7 @@ static void do_neigh_solicit(struct usbnet *dev, u8 *buf, u16 tci) in6_dev_put(in6_dev); /* ipv6_stub != NULL if in6_dev_get returned an inet6_dev */ - ipv6_stub->ndisc_send_na(netdev, NULL, &iph->saddr, &msg->target, + ipv6_stub->ndisc_send_na(netdev, &iph->saddr, &msg->target, is_router /* router */, true /* solicited */, false /* override */, @@ -582,6 +582,26 @@ static const struct driver_info cdc_mbim_info_zlp = { .tx_fixup = cdc_mbim_tx_fixup, }; +/* The spefication explicitly allows NDPs to be placed anywhere in the + * frame, but some devices fail unless the NDP is placed after the IP + * packets. Using the CDC_NCM_FLAG_NDP_TO_END flags to force this + * behaviour. + * + * Note: The current implementation of this feature restricts each NTB + * to a single NDP, implying that multiplexed sessions cannot share an + * NTB. This might affect performace for multiplexed sessions. + */ +static const struct driver_info cdc_mbim_info_ndp_to_end = { + .description = "CDC MBIM", + .flags = FLAG_NO_SETINT | FLAG_MULTI_PACKET | FLAG_WWAN, + .bind = cdc_mbim_bind, + .unbind = cdc_mbim_unbind, + .manage_power = cdc_mbim_manage_power, + .rx_fixup = cdc_mbim_rx_fixup, + .tx_fixup = cdc_mbim_tx_fixup, + .data = CDC_NCM_FLAG_NDP_TO_END, +}; + static const struct usb_device_id mbim_devs[] = { /* This duplicate NCM entry is intentional. MBIM devices can * be disguised as NCM by default, and this is necessary to @@ -597,6 +617,10 @@ static const struct usb_device_id mbim_devs[] = { { USB_VENDOR_AND_INTERFACE_INFO(0x0bdb, USB_CLASS_COMM, USB_CDC_SUBCLASS_MBIM, USB_CDC_PROTO_NONE), .driver_info = (unsigned long)&cdc_mbim_info, }, + /* Huawei E3372 fails unless NDP comes after the IP packets */ + { USB_DEVICE_AND_INTERFACE_INFO(0x12d1, 0x157d, USB_CLASS_COMM, USB_CDC_SUBCLASS_MBIM, USB_CDC_PROTO_NONE), + .driver_info = (unsigned long)&cdc_mbim_info_ndp_to_end, + }, /* default entry */ { USB_INTERFACE_INFO(USB_CLASS_COMM, USB_CDC_SUBCLASS_MBIM, USB_CDC_PROTO_NONE), .driver_info = (unsigned long)&cdc_mbim_info_zlp, diff --git a/kernel/drivers/net/usb/cdc_ncm.c b/kernel/drivers/net/usb/cdc_ncm.c index 8067b8fbb..e8a1144c5 100644 --- a/kernel/drivers/net/usb/cdc_ncm.c +++ b/kernel/drivers/net/usb/cdc_ncm.c @@ -6,7 +6,7 @@ * Original author: Hans Petter Selasky <hans.petter.selasky@stericsson.com> * * USB Host Driver for Network Control Model (NCM) - * http://www.usb.org/developers/devclass_docs/NCM10.zip + * http://www.usb.org/developers/docs/devclass_docs/NCM10_012011.zip * * The NCM encoding, decoding and initialization logic * derives from FreeBSD 8.x. if_cdce.c and if_cdcereg.h @@ -41,6 +41,7 @@ #include <linux/module.h> #include <linux/netdevice.h> #include <linux/ctype.h> +#include <linux/etherdevice.h> #include <linux/ethtool.h> #include <linux/workqueue.h> #include <linux/mii.h> @@ -684,18 +685,47 @@ static void cdc_ncm_free(struct cdc_ncm_ctx *ctx) ctx->tx_curr_skb = NULL; } + kfree(ctx->delayed_ndp16); + kfree(ctx); } -int cdc_ncm_bind_common(struct usbnet *dev, struct usb_interface *intf, u8 data_altsetting) +/* we need to override the usbnet change_mtu ndo for two reasons: + * - respect the negotiated maximum datagram size + * - avoid unwanted changes to rx and tx buffers + */ +int cdc_ncm_change_mtu(struct net_device *net, int new_mtu) +{ + struct usbnet *dev = netdev_priv(net); + struct cdc_ncm_ctx *ctx = (struct cdc_ncm_ctx *)dev->data[0]; + int maxmtu = ctx->max_datagram_size - cdc_ncm_eth_hlen(dev); + + if (new_mtu <= 0 || new_mtu > maxmtu) + return -EINVAL; + net->mtu = new_mtu; + return 0; +} +EXPORT_SYMBOL_GPL(cdc_ncm_change_mtu); + +static const struct net_device_ops cdc_ncm_netdev_ops = { + .ndo_open = usbnet_open, + .ndo_stop = usbnet_stop, + .ndo_start_xmit = usbnet_start_xmit, + .ndo_tx_timeout = usbnet_tx_timeout, + .ndo_change_mtu = cdc_ncm_change_mtu, + .ndo_set_mac_address = eth_mac_addr, + .ndo_validate_addr = eth_validate_addr, +}; + +int cdc_ncm_bind_common(struct usbnet *dev, struct usb_interface *intf, u8 data_altsetting, int drvflags) { - const struct usb_cdc_union_desc *union_desc = NULL; struct cdc_ncm_ctx *ctx; struct usb_driver *driver; u8 *buf; int len; int temp; u8 iface_no; + struct usb_cdc_parsed_header hdr; ctx = kzalloc(sizeof(*ctx), GFP_KERNEL); if (!ctx) @@ -720,69 +750,18 @@ int cdc_ncm_bind_common(struct usbnet *dev, struct usb_interface *intf, u8 data_ len = intf->cur_altsetting->extralen; /* parse through descriptors associated with control interface */ - while ((len > 0) && (buf[0] > 2) && (buf[0] <= len)) { - - if (buf[1] != USB_DT_CS_INTERFACE) - goto advance; - - switch (buf[2]) { - case USB_CDC_UNION_TYPE: - if (buf[0] < sizeof(*union_desc)) - break; - - union_desc = (const struct usb_cdc_union_desc *)buf; - /* the master must be the interface we are probing */ - if (intf->cur_altsetting->desc.bInterfaceNumber != - union_desc->bMasterInterface0) { - dev_dbg(&intf->dev, "bogus CDC Union\n"); - goto error; - } - ctx->data = usb_ifnum_to_if(dev->udev, - union_desc->bSlaveInterface0); - break; - - case USB_CDC_ETHERNET_TYPE: - if (buf[0] < sizeof(*(ctx->ether_desc))) - break; - - ctx->ether_desc = - (const struct usb_cdc_ether_desc *)buf; - break; - - case USB_CDC_NCM_TYPE: - if (buf[0] < sizeof(*(ctx->func_desc))) - break; - - ctx->func_desc = (const struct usb_cdc_ncm_desc *)buf; - break; - - case USB_CDC_MBIM_TYPE: - if (buf[0] < sizeof(*(ctx->mbim_desc))) - break; - - ctx->mbim_desc = (const struct usb_cdc_mbim_desc *)buf; - break; - - case USB_CDC_MBIM_EXTENDED_TYPE: - if (buf[0] < sizeof(*(ctx->mbim_extended_desc))) - break; - - ctx->mbim_extended_desc = - (const struct usb_cdc_mbim_extended_desc *)buf; - break; + cdc_parse_cdc_header(&hdr, intf, buf, len); - default: - break; - } -advance: - /* advance to next descriptor */ - temp = buf[0]; - buf += temp; - len -= temp; - } + if (hdr.usb_cdc_union_desc) + ctx->data = usb_ifnum_to_if(dev->udev, + hdr.usb_cdc_union_desc->bSlaveInterface0); + ctx->ether_desc = hdr.usb_cdc_ether_desc; + ctx->func_desc = hdr.usb_cdc_ncm_desc; + ctx->mbim_desc = hdr.usb_cdc_mbim_desc; + ctx->mbim_extended_desc = hdr.usb_cdc_mbim_extended_desc; /* some buggy devices have an IAD but no CDC Union */ - if (!union_desc && intf->intf_assoc && intf->intf_assoc->bInterfaceCount == 2) { + if (!hdr.usb_cdc_union_desc && intf->intf_assoc && intf->intf_assoc->bInterfaceCount == 2) { ctx->data = usb_ifnum_to_if(dev->udev, intf->cur_altsetting->desc.bInterfaceNumber + 1); dev_dbg(&intf->dev, "CDC Union missing - got slave from IAD\n"); } @@ -855,12 +834,26 @@ advance: /* finish setting up the device specific data */ cdc_ncm_setup(dev); + /* Device-specific flags */ + ctx->drvflags = drvflags; + + /* Allocate the delayed NDP if needed. */ + if (ctx->drvflags & CDC_NCM_FLAG_NDP_TO_END) { + ctx->delayed_ndp16 = kzalloc(ctx->max_ndp_size, GFP_KERNEL); + if (!ctx->delayed_ndp16) + goto error2; + dev_info(&intf->dev, "NDP will be placed at end of frame for this device."); + } + /* override ethtool_ops */ dev->net->ethtool_ops = &cdc_ncm_ethtool_ops; /* add our sysfs attrs */ dev->net->sysfs_groups[0] = &cdc_ncm_sysfs_attr_group; + /* must handle MTU changes */ + dev->net->netdev_ops = &cdc_ncm_netdev_ops; + return 0; error2: @@ -954,8 +947,11 @@ static int cdc_ncm_bind(struct usbnet *dev, struct usb_interface *intf) if (cdc_ncm_select_altsetting(intf) != CDC_NCM_COMM_ALTSETTING_NCM) return -ENODEV; - /* The NCM data altsetting is fixed */ - ret = cdc_ncm_bind_common(dev, intf, CDC_NCM_DATA_ALTSETTING_NCM); + /* The NCM data altsetting is fixed, so we hard-coded it. + * Additionally, generic NCM devices are assumed to accept arbitrarily + * placed NDP. + */ + ret = cdc_ncm_bind_common(dev, intf, CDC_NCM_DATA_ALTSETTING_NCM, 0); /* * We should get an event when network connection is "connected" or @@ -986,6 +982,22 @@ static struct usb_cdc_ncm_ndp16 *cdc_ncm_ndp(struct cdc_ncm_ctx *ctx, struct sk_ struct usb_cdc_ncm_nth16 *nth16 = (void *)skb->data; size_t ndpoffset = le16_to_cpu(nth16->wNdpIndex); + /* If NDP should be moved to the end of the NCM package, we can't follow the + * NTH16 header as we would normally do. NDP isn't written to the SKB yet, and + * the wNdpIndex field in the header is actually not consistent with reality. It will be later. + */ + if (ctx->drvflags & CDC_NCM_FLAG_NDP_TO_END) { + if (ctx->delayed_ndp16->dwSignature == sign) + return ctx->delayed_ndp16; + + /* We can only push a single NDP to the end. Return + * NULL to send what we've already got and queue this + * skb for later. + */ + else if (ctx->delayed_ndp16->dwSignature) + return NULL; + } + /* follow the chain of NDPs, looking for a match */ while (ndpoffset) { ndp16 = (struct usb_cdc_ncm_ndp16 *)(skb->data + ndpoffset); @@ -995,7 +1007,8 @@ static struct usb_cdc_ncm_ndp16 *cdc_ncm_ndp(struct cdc_ncm_ctx *ctx, struct sk_ } /* align new NDP */ - cdc_ncm_align_tail(skb, ctx->tx_ndp_modulus, 0, ctx->tx_max); + if (!(ctx->drvflags & CDC_NCM_FLAG_NDP_TO_END)) + cdc_ncm_align_tail(skb, ctx->tx_ndp_modulus, 0, ctx->tx_max); /* verify that there is room for the NDP and the datagram (reserve) */ if ((ctx->tx_max - skb->len - reserve) < ctx->max_ndp_size) @@ -1008,7 +1021,11 @@ static struct usb_cdc_ncm_ndp16 *cdc_ncm_ndp(struct cdc_ncm_ctx *ctx, struct sk_ nth16->wNdpIndex = cpu_to_le16(skb->len); /* push a new empty NDP */ - ndp16 = (struct usb_cdc_ncm_ndp16 *)memset(skb_put(skb, ctx->max_ndp_size), 0, ctx->max_ndp_size); + if (!(ctx->drvflags & CDC_NCM_FLAG_NDP_TO_END)) + ndp16 = (struct usb_cdc_ncm_ndp16 *)memset(skb_put(skb, ctx->max_ndp_size), 0, ctx->max_ndp_size); + else + ndp16 = ctx->delayed_ndp16; + ndp16->dwSignature = sign; ndp16->wLength = cpu_to_le16(sizeof(struct usb_cdc_ncm_ndp16) + sizeof(struct usb_cdc_ncm_dpe16)); return ndp16; @@ -1023,6 +1040,15 @@ cdc_ncm_fill_tx_frame(struct usbnet *dev, struct sk_buff *skb, __le32 sign) struct sk_buff *skb_out; u16 n = 0, index, ndplen; u8 ready2send = 0; + u32 delayed_ndp_size; + + /* When our NDP gets written in cdc_ncm_ndp(), then skb_out->len gets updated + * accordingly. Otherwise, we should check here. + */ + if (ctx->drvflags & CDC_NCM_FLAG_NDP_TO_END) + delayed_ndp_size = ctx->max_ndp_size; + else + delayed_ndp_size = 0; /* if there is a remaining skb, it gets priority */ if (skb != NULL) { @@ -1077,7 +1103,7 @@ cdc_ncm_fill_tx_frame(struct usbnet *dev, struct sk_buff *skb, __le32 sign) cdc_ncm_align_tail(skb_out, ctx->tx_modulus, ctx->tx_remainder, ctx->tx_max); /* check if we had enough room left for both NDP and frame */ - if (!ndp16 || skb_out->len + skb->len > ctx->tx_max) { + if (!ndp16 || skb_out->len + skb->len + delayed_ndp_size > ctx->tx_max) { if (n == 0) { /* won't fit, MTU problem? */ dev_kfree_skb_any(skb); @@ -1150,6 +1176,17 @@ cdc_ncm_fill_tx_frame(struct usbnet *dev, struct sk_buff *skb, __le32 sign) /* variables will be reset at next call */ } + /* If requested, put NDP at end of frame. */ + if (ctx->drvflags & CDC_NCM_FLAG_NDP_TO_END) { + nth16 = (struct usb_cdc_ncm_nth16 *)skb_out->data; + cdc_ncm_align_tail(skb_out, ctx->tx_ndp_modulus, 0, ctx->tx_max); + nth16->wNdpIndex = cpu_to_le16(skb_out->len); + memcpy(skb_put(skb_out, ctx->max_ndp_size), ctx->delayed_ndp16, ctx->max_ndp_size); + + /* Zero out delayed NDP - signature checking will naturally fail. */ + ndp16 = memset(ctx->delayed_ndp16, 0, ctx->max_ndp_size); + } + /* If collected data size is less or equal ctx->min_tx_pkt * bytes, we send buffers as it is. If we get more data, it * would be more efficient for USB HS mobile device with DMA @@ -1552,6 +1589,24 @@ static const struct usb_device_id cdc_devs[] = { .driver_info = (unsigned long) &wwan_info, }, + /* DW5812 LTE Verizon Mobile Broadband Card + * Unlike DW5550 this device requires FLAG_NOARP + */ + { USB_DEVICE_AND_INTERFACE_INFO(0x413c, 0x81bb, + USB_CLASS_COMM, + USB_CDC_SUBCLASS_NCM, USB_CDC_PROTO_NONE), + .driver_info = (unsigned long)&wwan_noarp_info, + }, + + /* DW5813 LTE AT&T Mobile Broadband Card + * Unlike DW5550 this device requires FLAG_NOARP + */ + { USB_DEVICE_AND_INTERFACE_INFO(0x413c, 0x81bc, + USB_CLASS_COMM, + USB_CDC_SUBCLASS_NCM, USB_CDC_PROTO_NONE), + .driver_info = (unsigned long)&wwan_noarp_info, + }, + /* Dell branded MBM devices like DW5550 */ { .match_flags = USB_DEVICE_ID_MATCH_INT_INFO | USB_DEVICE_ID_MATCH_VENDOR, diff --git a/kernel/drivers/net/usb/ch9200.c b/kernel/drivers/net/usb/ch9200.c new file mode 100644 index 000000000..5e151e6a3 --- /dev/null +++ b/kernel/drivers/net/usb/ch9200.c @@ -0,0 +1,432 @@ +/* + * USB 10M/100M ethernet adapter + * + * This file is licensed under the terms of the GNU General Public License + * version 2. This program is licensed "as is" without any warranty of any + * kind, whether express or implied + * + */ + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/sched.h> +#include <linux/stddef.h> +#include <linux/init.h> +#include <linux/netdevice.h> +#include <linux/etherdevice.h> +#include <linux/ethtool.h> +#include <linux/mii.h> +#include <linux/usb.h> +#include <linux/crc32.h> +#include <linux/usb/usbnet.h> +#include <linux/slab.h> + +#define CH9200_VID 0x1A86 +#define CH9200_PID_E092 0xE092 + +#define CTRL_TIMEOUT_MS 1000 + +#define CONTROL_TIMEOUT_MS 1000 + +#define REQUEST_READ 0x0E +#define REQUEST_WRITE 0x0F + +/* Address space: + * 00-63 : MII + * 64-128: MAC + * + * Note: all accesses must be 16-bit + */ + +#define MAC_REG_CTRL 64 +#define MAC_REG_STATUS 66 +#define MAC_REG_INTERRUPT_MASK 68 +#define MAC_REG_PHY_COMMAND 70 +#define MAC_REG_PHY_DATA 72 +#define MAC_REG_STATION_L 74 +#define MAC_REG_STATION_M 76 +#define MAC_REG_STATION_H 78 +#define MAC_REG_HASH_L 80 +#define MAC_REG_HASH_M1 82 +#define MAC_REG_HASH_M2 84 +#define MAC_REG_HASH_H 86 +#define MAC_REG_THRESHOLD 88 +#define MAC_REG_FIFO_DEPTH 90 +#define MAC_REG_PAUSE 92 +#define MAC_REG_FLOW_CONTROL 94 + +/* Control register bits + * + * Note: bits 13 and 15 are reserved + */ +#define LOOPBACK (0x01 << 14) +#define BASE100X (0x01 << 12) +#define MBPS_10 (0x01 << 11) +#define DUPLEX_MODE (0x01 << 10) +#define PAUSE_FRAME (0x01 << 9) +#define PROMISCUOUS (0x01 << 8) +#define MULTICAST (0x01 << 7) +#define BROADCAST (0x01 << 6) +#define HASH (0x01 << 5) +#define APPEND_PAD (0x01 << 4) +#define APPEND_CRC (0x01 << 3) +#define TRANSMITTER_ACTION (0x01 << 2) +#define RECEIVER_ACTION (0x01 << 1) +#define DMA_ACTION (0x01 << 0) + +/* Status register bits + * + * Note: bits 7-15 are reserved + */ +#define ALIGNMENT (0x01 << 6) +#define FIFO_OVER_RUN (0x01 << 5) +#define FIFO_UNDER_RUN (0x01 << 4) +#define RX_ERROR (0x01 << 3) +#define RX_COMPLETE (0x01 << 2) +#define TX_ERROR (0x01 << 1) +#define TX_COMPLETE (0x01 << 0) + +/* FIFO depth register bits + * + * Note: bits 6 and 14 are reserved + */ + +#define ETH_TXBD (0x01 << 15) +#define ETN_TX_FIFO_DEPTH (0x01 << 8) +#define ETH_RXBD (0x01 << 7) +#define ETH_RX_FIFO_DEPTH (0x01 << 0) + +static int control_read(struct usbnet *dev, + unsigned char request, unsigned short value, + unsigned short index, void *data, unsigned short size, + int timeout) +{ + unsigned char *buf = NULL; + unsigned char request_type; + int err = 0; + + if (request == REQUEST_READ) + request_type = (USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_OTHER); + else + request_type = (USB_DIR_IN | USB_TYPE_VENDOR | + USB_RECIP_DEVICE); + + netdev_dbg(dev->net, "Control_read() index=0x%02x size=%d\n", + index, size); + + buf = kmalloc(size, GFP_KERNEL); + if (!buf) { + err = -ENOMEM; + goto err_out; + } + + err = usb_control_msg(dev->udev, + usb_rcvctrlpipe(dev->udev, 0), + request, request_type, value, index, buf, size, + timeout); + if (err == size) + memcpy(data, buf, size); + else if (err >= 0) + err = -EINVAL; + kfree(buf); + + return err; + +err_out: + return err; +} + +static int control_write(struct usbnet *dev, unsigned char request, + unsigned short value, unsigned short index, + void *data, unsigned short size, int timeout) +{ + unsigned char *buf = NULL; + unsigned char request_type; + int err = 0; + + if (request == REQUEST_WRITE) + request_type = (USB_DIR_OUT | USB_TYPE_VENDOR | + USB_RECIP_OTHER); + else + request_type = (USB_DIR_OUT | USB_TYPE_VENDOR | + USB_RECIP_DEVICE); + + netdev_dbg(dev->net, "Control_write() index=0x%02x size=%d\n", + index, size); + + if (data) { + buf = kmalloc(size, GFP_KERNEL); + if (!buf) { + err = -ENOMEM; + goto err_out; + } + memcpy(buf, data, size); + } + + err = usb_control_msg(dev->udev, + usb_sndctrlpipe(dev->udev, 0), + request, request_type, value, index, buf, size, + timeout); + if (err >= 0 && err < size) + err = -EINVAL; + kfree(buf); + + return 0; + +err_out: + return err; +} + +static int ch9200_mdio_read(struct net_device *netdev, int phy_id, int loc) +{ + struct usbnet *dev = netdev_priv(netdev); + unsigned char buff[2]; + + netdev_dbg(netdev, "ch9200_mdio_read phy_id:%02x loc:%02x\n", + phy_id, loc); + + if (phy_id != 0) + return -ENODEV; + + control_read(dev, REQUEST_READ, 0, loc * 2, buff, 0x02, + CONTROL_TIMEOUT_MS); + + return (buff[0] | buff[1] << 8); +} + +static void ch9200_mdio_write(struct net_device *netdev, + int phy_id, int loc, int val) +{ + struct usbnet *dev = netdev_priv(netdev); + unsigned char buff[2]; + + netdev_dbg(netdev, "ch9200_mdio_write() phy_id=%02x loc:%02x\n", + phy_id, loc); + + if (phy_id != 0) + return; + + buff[0] = (unsigned char)val; + buff[1] = (unsigned char)(val >> 8); + + control_write(dev, REQUEST_WRITE, 0, loc * 2, buff, 0x02, + CONTROL_TIMEOUT_MS); +} + +static int ch9200_link_reset(struct usbnet *dev) +{ + struct ethtool_cmd ecmd; + + mii_check_media(&dev->mii, 1, 1); + mii_ethtool_gset(&dev->mii, &ecmd); + + netdev_dbg(dev->net, "link_reset() speed:%d duplex:%d\n", + ecmd.speed, ecmd.duplex); + + return 0; +} + +static void ch9200_status(struct usbnet *dev, struct urb *urb) +{ + int link; + unsigned char *buf; + + if (urb->actual_length < 16) + return; + + buf = urb->transfer_buffer; + link = !!(buf[0] & 0x01); + + if (link) { + netif_carrier_on(dev->net); + usbnet_defer_kevent(dev, EVENT_LINK_RESET); + } else { + netif_carrier_off(dev->net); + } +} + +static struct sk_buff *ch9200_tx_fixup(struct usbnet *dev, struct sk_buff *skb, + gfp_t flags) +{ + int i = 0; + int len = 0; + int tx_overhead = 0; + + tx_overhead = 0x40; + + len = skb->len; + if (skb_headroom(skb) < tx_overhead) { + struct sk_buff *skb2; + + skb2 = skb_copy_expand(skb, tx_overhead, 0, flags); + dev_kfree_skb_any(skb); + skb = skb2; + if (!skb) + return NULL; + } + + __skb_push(skb, tx_overhead); + /* usbnet adds padding if length is a multiple of packet size + * if so, adjust length value in header + */ + if ((skb->len % dev->maxpacket) == 0) + len++; + + skb->data[0] = len; + skb->data[1] = len >> 8; + skb->data[2] = 0x00; + skb->data[3] = 0x80; + + for (i = 4; i < 48; i++) + skb->data[i] = 0x00; + + skb->data[48] = len; + skb->data[49] = len >> 8; + skb->data[50] = 0x00; + skb->data[51] = 0x80; + + for (i = 52; i < 64; i++) + skb->data[i] = 0x00; + + return skb; +} + +static int ch9200_rx_fixup(struct usbnet *dev, struct sk_buff *skb) +{ + int len = 0; + int rx_overhead = 0; + + rx_overhead = 64; + + if (unlikely(skb->len < rx_overhead)) { + dev_err(&dev->udev->dev, "unexpected tiny rx frame\n"); + return 0; + } + + len = (skb->data[skb->len - 16] | skb->data[skb->len - 15] << 8); + skb_trim(skb, len); + + return 1; +} + +static int get_mac_address(struct usbnet *dev, unsigned char *data) +{ + int err = 0; + unsigned char mac_addr[0x06]; + int rd_mac_len = 0; + + netdev_dbg(dev->net, "get_mac_address:\n\tusbnet VID:%0x PID:%0x\n", + dev->udev->descriptor.idVendor, + dev->udev->descriptor.idProduct); + + memset(mac_addr, 0, sizeof(mac_addr)); + rd_mac_len = control_read(dev, REQUEST_READ, 0, + MAC_REG_STATION_L, mac_addr, 0x02, + CONTROL_TIMEOUT_MS); + rd_mac_len += control_read(dev, REQUEST_READ, 0, MAC_REG_STATION_M, + mac_addr + 2, 0x02, CONTROL_TIMEOUT_MS); + rd_mac_len += control_read(dev, REQUEST_READ, 0, MAC_REG_STATION_H, + mac_addr + 4, 0x02, CONTROL_TIMEOUT_MS); + if (rd_mac_len != ETH_ALEN) + err = -EINVAL; + + data[0] = mac_addr[5]; + data[1] = mac_addr[4]; + data[2] = mac_addr[3]; + data[3] = mac_addr[2]; + data[4] = mac_addr[1]; + data[5] = mac_addr[0]; + + return err; +} + +static int ch9200_bind(struct usbnet *dev, struct usb_interface *intf) +{ + int retval = 0; + unsigned char data[2]; + + retval = usbnet_get_endpoints(dev, intf); + if (retval) + return retval; + + dev->mii.dev = dev->net; + dev->mii.mdio_read = ch9200_mdio_read; + dev->mii.mdio_write = ch9200_mdio_write; + dev->mii.reg_num_mask = 0x1f; + + dev->mii.phy_id_mask = 0x1f; + + dev->hard_mtu = dev->net->mtu + dev->net->hard_header_len; + dev->rx_urb_size = 24 * 64 + 16; + mii_nway_restart(&dev->mii); + + data[0] = 0x01; + data[1] = 0x0F; + retval = control_write(dev, REQUEST_WRITE, 0, MAC_REG_THRESHOLD, data, + 0x02, CONTROL_TIMEOUT_MS); + + data[0] = 0xA0; + data[1] = 0x90; + retval = control_write(dev, REQUEST_WRITE, 0, MAC_REG_FIFO_DEPTH, data, + 0x02, CONTROL_TIMEOUT_MS); + + data[0] = 0x30; + data[1] = 0x00; + retval = control_write(dev, REQUEST_WRITE, 0, MAC_REG_PAUSE, data, + 0x02, CONTROL_TIMEOUT_MS); + + data[0] = 0x17; + data[1] = 0xD8; + retval = control_write(dev, REQUEST_WRITE, 0, MAC_REG_FLOW_CONTROL, + data, 0x02, CONTROL_TIMEOUT_MS); + + /* Undocumented register */ + data[0] = 0x01; + data[1] = 0x00; + retval = control_write(dev, REQUEST_WRITE, 0, 254, data, 0x02, + CONTROL_TIMEOUT_MS); + + data[0] = 0x5F; + data[1] = 0x0D; + retval = control_write(dev, REQUEST_WRITE, 0, MAC_REG_CTRL, data, 0x02, + CONTROL_TIMEOUT_MS); + + retval = get_mac_address(dev, dev->net->dev_addr); + + return retval; +} + +static const struct driver_info ch9200_info = { + .description = "CH9200 USB to Network Adaptor", + .flags = FLAG_ETHER, + .bind = ch9200_bind, + .rx_fixup = ch9200_rx_fixup, + .tx_fixup = ch9200_tx_fixup, + .status = ch9200_status, + .link_reset = ch9200_link_reset, + .reset = ch9200_link_reset, +}; + +static const struct usb_device_id ch9200_products[] = { + { + USB_DEVICE(0x1A86, 0xE092), + .driver_info = (unsigned long)&ch9200_info, + }, + {}, +}; + +MODULE_DEVICE_TABLE(usb, ch9200_products); + +static struct usb_driver ch9200_driver = { + .name = "ch9200", + .id_table = ch9200_products, + .probe = usbnet_probe, + .disconnect = usbnet_disconnect, + .suspend = usbnet_suspend, + .resume = usbnet_resume, +}; + +module_usb_driver(ch9200_driver); + +MODULE_DESCRIPTION("QinHeng CH9200 USB Network device"); +MODULE_LICENSE("GPL"); diff --git a/kernel/drivers/net/usb/dm9601.c b/kernel/drivers/net/usb/dm9601.c index 6e9c344c7..0b4bdd391 100644 --- a/kernel/drivers/net/usb/dm9601.c +++ b/kernel/drivers/net/usb/dm9601.c @@ -258,7 +258,6 @@ static void dm9601_get_drvinfo(struct net_device *net, { /* Inherit standard device info */ usbnet_get_drvinfo(net, info); - info->eedump_len = DM_EEPROM_LEN; } static u32 dm9601_get_link(struct net_device *net) diff --git a/kernel/drivers/net/usb/huawei_cdc_ncm.c b/kernel/drivers/net/usb/huawei_cdc_ncm.c index 735f7dadb..2680a65cd 100644 --- a/kernel/drivers/net/usb/huawei_cdc_ncm.c +++ b/kernel/drivers/net/usb/huawei_cdc_ncm.c @@ -73,11 +73,14 @@ static int huawei_cdc_ncm_bind(struct usbnet *usbnet_dev, struct usb_driver *subdriver = ERR_PTR(-ENODEV); int ret = -ENODEV; struct huawei_cdc_ncm_state *drvstate = (void *)&usbnet_dev->data; + int drvflags = 0; /* altsetting should always be 1 for NCM devices - so we hard-coded - * it here + * it here. Some huawei devices will need the NDP part of the NCM package to + * be at the end of the frame. */ - ret = cdc_ncm_bind_common(usbnet_dev, intf, 1); + drvflags |= CDC_NCM_FLAG_NDP_TO_END; + ret = cdc_ncm_bind_common(usbnet_dev, intf, 1, drvflags); if (ret) goto err; diff --git a/kernel/drivers/net/usb/kaweth.c b/kernel/drivers/net/usb/kaweth.c index 1e9cdca37..f64b25c22 100644 --- a/kernel/drivers/net/usb/kaweth.c +++ b/kernel/drivers/net/usb/kaweth.c @@ -1177,12 +1177,6 @@ err_fw: INIT_DELAYED_WORK(&kaweth->lowmem_work, kaweth_resubmit_tl); usb_set_intfdata(intf, kaweth); -#if 0 -// dma_supported() is deeply broken on almost all architectures - if (dma_supported (dev, 0xffffffffffffffffULL)) - kaweth->net->features |= NETIF_F_HIGHDMA; -#endif - SET_NETDEV_DEV(netdev, dev); if (register_netdev(netdev) != 0) { dev_err(dev, "Error registering netdev.\n"); diff --git a/kernel/drivers/net/usb/lan78xx.c b/kernel/drivers/net/usb/lan78xx.c new file mode 100644 index 000000000..226668ead --- /dev/null +++ b/kernel/drivers/net/usb/lan78xx.c @@ -0,0 +1,3394 @@ +/* + * Copyright (C) 2015 Microchip Technology + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see <http://www.gnu.org/licenses/>. + */ +#include <linux/version.h> +#include <linux/module.h> +#include <linux/netdevice.h> +#include <linux/etherdevice.h> +#include <linux/ethtool.h> +#include <linux/usb.h> +#include <linux/crc32.h> +#include <linux/signal.h> +#include <linux/slab.h> +#include <linux/if_vlan.h> +#include <linux/uaccess.h> +#include <linux/list.h> +#include <linux/ip.h> +#include <linux/ipv6.h> +#include <linux/mdio.h> +#include <net/ip6_checksum.h> +#include <linux/microchipphy.h> +#include "lan78xx.h" + +#define DRIVER_AUTHOR "WOOJUNG HUH <woojung.huh@microchip.com>" +#define DRIVER_DESC "LAN78XX USB 3.0 Gigabit Ethernet Devices" +#define DRIVER_NAME "lan78xx" +#define DRIVER_VERSION "1.0.1" + +#define TX_TIMEOUT_JIFFIES (5 * HZ) +#define THROTTLE_JIFFIES (HZ / 8) +#define UNLINK_TIMEOUT_MS 3 + +#define RX_MAX_QUEUE_MEMORY (60 * 1518) + +#define SS_USB_PKT_SIZE (1024) +#define HS_USB_PKT_SIZE (512) +#define FS_USB_PKT_SIZE (64) + +#define MAX_RX_FIFO_SIZE (12 * 1024) +#define MAX_TX_FIFO_SIZE (12 * 1024) +#define DEFAULT_BURST_CAP_SIZE (MAX_TX_FIFO_SIZE) +#define DEFAULT_BULK_IN_DELAY (0x0800) +#define MAX_SINGLE_PACKET_SIZE (9000) +#define DEFAULT_TX_CSUM_ENABLE (true) +#define DEFAULT_RX_CSUM_ENABLE (true) +#define DEFAULT_TSO_CSUM_ENABLE (true) +#define DEFAULT_VLAN_FILTER_ENABLE (true) +#define TX_OVERHEAD (8) +#define RXW_PADDING 2 + +#define LAN78XX_USB_VENDOR_ID (0x0424) +#define LAN7800_USB_PRODUCT_ID (0x7800) +#define LAN7850_USB_PRODUCT_ID (0x7850) +#define LAN78XX_EEPROM_MAGIC (0x78A5) +#define LAN78XX_OTP_MAGIC (0x78F3) + +#define MII_READ 1 +#define MII_WRITE 0 + +#define EEPROM_INDICATOR (0xA5) +#define EEPROM_MAC_OFFSET (0x01) +#define MAX_EEPROM_SIZE 512 +#define OTP_INDICATOR_1 (0xF3) +#define OTP_INDICATOR_2 (0xF7) + +#define WAKE_ALL (WAKE_PHY | WAKE_UCAST | \ + WAKE_MCAST | WAKE_BCAST | \ + WAKE_ARP | WAKE_MAGIC) + +/* USB related defines */ +#define BULK_IN_PIPE 1 +#define BULK_OUT_PIPE 2 + +/* default autosuspend delay (mSec)*/ +#define DEFAULT_AUTOSUSPEND_DELAY (10 * 1000) + +static const char lan78xx_gstrings[][ETH_GSTRING_LEN] = { + "RX FCS Errors", + "RX Alignment Errors", + "Rx Fragment Errors", + "RX Jabber Errors", + "RX Undersize Frame Errors", + "RX Oversize Frame Errors", + "RX Dropped Frames", + "RX Unicast Byte Count", + "RX Broadcast Byte Count", + "RX Multicast Byte Count", + "RX Unicast Frames", + "RX Broadcast Frames", + "RX Multicast Frames", + "RX Pause Frames", + "RX 64 Byte Frames", + "RX 65 - 127 Byte Frames", + "RX 128 - 255 Byte Frames", + "RX 256 - 511 Bytes Frames", + "RX 512 - 1023 Byte Frames", + "RX 1024 - 1518 Byte Frames", + "RX Greater 1518 Byte Frames", + "EEE RX LPI Transitions", + "EEE RX LPI Time", + "TX FCS Errors", + "TX Excess Deferral Errors", + "TX Carrier Errors", + "TX Bad Byte Count", + "TX Single Collisions", + "TX Multiple Collisions", + "TX Excessive Collision", + "TX Late Collisions", + "TX Unicast Byte Count", + "TX Broadcast Byte Count", + "TX Multicast Byte Count", + "TX Unicast Frames", + "TX Broadcast Frames", + "TX Multicast Frames", + "TX Pause Frames", + "TX 64 Byte Frames", + "TX 65 - 127 Byte Frames", + "TX 128 - 255 Byte Frames", + "TX 256 - 511 Bytes Frames", + "TX 512 - 1023 Byte Frames", + "TX 1024 - 1518 Byte Frames", + "TX Greater 1518 Byte Frames", + "EEE TX LPI Transitions", + "EEE TX LPI Time", +}; + +struct lan78xx_statstage { + u32 rx_fcs_errors; + u32 rx_alignment_errors; + u32 rx_fragment_errors; + u32 rx_jabber_errors; + u32 rx_undersize_frame_errors; + u32 rx_oversize_frame_errors; + u32 rx_dropped_frames; + u32 rx_unicast_byte_count; + u32 rx_broadcast_byte_count; + u32 rx_multicast_byte_count; + u32 rx_unicast_frames; + u32 rx_broadcast_frames; + u32 rx_multicast_frames; + u32 rx_pause_frames; + u32 rx_64_byte_frames; + u32 rx_65_127_byte_frames; + u32 rx_128_255_byte_frames; + u32 rx_256_511_bytes_frames; + u32 rx_512_1023_byte_frames; + u32 rx_1024_1518_byte_frames; + u32 rx_greater_1518_byte_frames; + u32 eee_rx_lpi_transitions; + u32 eee_rx_lpi_time; + u32 tx_fcs_errors; + u32 tx_excess_deferral_errors; + u32 tx_carrier_errors; + u32 tx_bad_byte_count; + u32 tx_single_collisions; + u32 tx_multiple_collisions; + u32 tx_excessive_collision; + u32 tx_late_collisions; + u32 tx_unicast_byte_count; + u32 tx_broadcast_byte_count; + u32 tx_multicast_byte_count; + u32 tx_unicast_frames; + u32 tx_broadcast_frames; + u32 tx_multicast_frames; + u32 tx_pause_frames; + u32 tx_64_byte_frames; + u32 tx_65_127_byte_frames; + u32 tx_128_255_byte_frames; + u32 tx_256_511_bytes_frames; + u32 tx_512_1023_byte_frames; + u32 tx_1024_1518_byte_frames; + u32 tx_greater_1518_byte_frames; + u32 eee_tx_lpi_transitions; + u32 eee_tx_lpi_time; +}; + +struct lan78xx_net; + +struct lan78xx_priv { + struct lan78xx_net *dev; + u32 rfe_ctl; + u32 mchash_table[DP_SEL_VHF_HASH_LEN]; /* multicat hash table */ + u32 pfilter_table[NUM_OF_MAF][2]; /* perfect filter table */ + u32 vlan_table[DP_SEL_VHF_VLAN_LEN]; + struct mutex dataport_mutex; /* for dataport access */ + spinlock_t rfe_ctl_lock; /* for rfe register access */ + struct work_struct set_multicast; + struct work_struct set_vlan; + u32 wol; +}; + +enum skb_state { + illegal = 0, + tx_start, + tx_done, + rx_start, + rx_done, + rx_cleanup, + unlink_start +}; + +struct skb_data { /* skb->cb is one of these */ + struct urb *urb; + struct lan78xx_net *dev; + enum skb_state state; + size_t length; +}; + +struct usb_context { + struct usb_ctrlrequest req; + struct lan78xx_net *dev; +}; + +#define EVENT_TX_HALT 0 +#define EVENT_RX_HALT 1 +#define EVENT_RX_MEMORY 2 +#define EVENT_STS_SPLIT 3 +#define EVENT_LINK_RESET 4 +#define EVENT_RX_PAUSED 5 +#define EVENT_DEV_WAKING 6 +#define EVENT_DEV_ASLEEP 7 +#define EVENT_DEV_OPEN 8 + +struct lan78xx_net { + struct net_device *net; + struct usb_device *udev; + struct usb_interface *intf; + void *driver_priv; + + int rx_qlen; + int tx_qlen; + struct sk_buff_head rxq; + struct sk_buff_head txq; + struct sk_buff_head done; + struct sk_buff_head rxq_pause; + struct sk_buff_head txq_pend; + + struct tasklet_struct bh; + struct delayed_work wq; + + struct usb_host_endpoint *ep_blkin; + struct usb_host_endpoint *ep_blkout; + struct usb_host_endpoint *ep_intr; + + int msg_enable; + + struct urb *urb_intr; + struct usb_anchor deferred; + + struct mutex phy_mutex; /* for phy access */ + unsigned pipe_in, pipe_out, pipe_intr; + + u32 hard_mtu; /* count any extra framing */ + size_t rx_urb_size; /* size for rx urbs */ + + unsigned long flags; + + wait_queue_head_t *wait; + unsigned char suspend_count; + + unsigned maxpacket; + struct timer_list delay; + + unsigned long data[5]; + + int link_on; + u8 mdix_ctrl; + + u32 devid; + struct mii_bus *mdiobus; +}; + +/* use ethtool to change the level for any given device */ +static int msg_level = -1; +module_param(msg_level, int, 0); +MODULE_PARM_DESC(msg_level, "Override default message level"); + +static int lan78xx_read_reg(struct lan78xx_net *dev, u32 index, u32 *data) +{ + u32 *buf = kmalloc(sizeof(u32), GFP_KERNEL); + int ret; + + if (!buf) + return -ENOMEM; + + ret = usb_control_msg(dev->udev, usb_rcvctrlpipe(dev->udev, 0), + USB_VENDOR_REQUEST_READ_REGISTER, + USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE, + 0, index, buf, 4, USB_CTRL_GET_TIMEOUT); + if (likely(ret >= 0)) { + le32_to_cpus(buf); + *data = *buf; + } else { + netdev_warn(dev->net, + "Failed to read register index 0x%08x. ret = %d", + index, ret); + } + + kfree(buf); + + return ret; +} + +static int lan78xx_write_reg(struct lan78xx_net *dev, u32 index, u32 data) +{ + u32 *buf = kmalloc(sizeof(u32), GFP_KERNEL); + int ret; + + if (!buf) + return -ENOMEM; + + *buf = data; + cpu_to_le32s(buf); + + ret = usb_control_msg(dev->udev, usb_sndctrlpipe(dev->udev, 0), + USB_VENDOR_REQUEST_WRITE_REGISTER, + USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE, + 0, index, buf, 4, USB_CTRL_SET_TIMEOUT); + if (unlikely(ret < 0)) { + netdev_warn(dev->net, + "Failed to write register index 0x%08x. ret = %d", + index, ret); + } + + kfree(buf); + + return ret; +} + +static int lan78xx_read_stats(struct lan78xx_net *dev, + struct lan78xx_statstage *data) +{ + int ret = 0; + int i; + struct lan78xx_statstage *stats; + u32 *src; + u32 *dst; + + stats = kmalloc(sizeof(*stats), GFP_KERNEL); + if (!stats) + return -ENOMEM; + + ret = usb_control_msg(dev->udev, + usb_rcvctrlpipe(dev->udev, 0), + USB_VENDOR_REQUEST_GET_STATS, + USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE, + 0, + 0, + (void *)stats, + sizeof(*stats), + USB_CTRL_SET_TIMEOUT); + if (likely(ret >= 0)) { + src = (u32 *)stats; + dst = (u32 *)data; + for (i = 0; i < sizeof(*stats)/sizeof(u32); i++) { + le32_to_cpus(&src[i]); + dst[i] = src[i]; + } + } else { + netdev_warn(dev->net, + "Failed to read stat ret = 0x%x", ret); + } + + kfree(stats); + + return ret; +} + +/* Loop until the read is completed with timeout called with phy_mutex held */ +static int lan78xx_phy_wait_not_busy(struct lan78xx_net *dev) +{ + unsigned long start_time = jiffies; + u32 val; + int ret; + + do { + ret = lan78xx_read_reg(dev, MII_ACC, &val); + if (unlikely(ret < 0)) + return -EIO; + + if (!(val & MII_ACC_MII_BUSY_)) + return 0; + } while (!time_after(jiffies, start_time + HZ)); + + return -EIO; +} + +static inline u32 mii_access(int id, int index, int read) +{ + u32 ret; + + ret = ((u32)id << MII_ACC_PHY_ADDR_SHIFT_) & MII_ACC_PHY_ADDR_MASK_; + ret |= ((u32)index << MII_ACC_MIIRINDA_SHIFT_) & MII_ACC_MIIRINDA_MASK_; + if (read) + ret |= MII_ACC_MII_READ_; + else + ret |= MII_ACC_MII_WRITE_; + ret |= MII_ACC_MII_BUSY_; + + return ret; +} + +static int lan78xx_wait_eeprom(struct lan78xx_net *dev) +{ + unsigned long start_time = jiffies; + u32 val; + int ret; + + do { + ret = lan78xx_read_reg(dev, E2P_CMD, &val); + if (unlikely(ret < 0)) + return -EIO; + + if (!(val & E2P_CMD_EPC_BUSY_) || + (val & E2P_CMD_EPC_TIMEOUT_)) + break; + usleep_range(40, 100); + } while (!time_after(jiffies, start_time + HZ)); + + if (val & (E2P_CMD_EPC_TIMEOUT_ | E2P_CMD_EPC_BUSY_)) { + netdev_warn(dev->net, "EEPROM read operation timeout"); + return -EIO; + } + + return 0; +} + +static int lan78xx_eeprom_confirm_not_busy(struct lan78xx_net *dev) +{ + unsigned long start_time = jiffies; + u32 val; + int ret; + + do { + ret = lan78xx_read_reg(dev, E2P_CMD, &val); + if (unlikely(ret < 0)) + return -EIO; + + if (!(val & E2P_CMD_EPC_BUSY_)) + return 0; + + usleep_range(40, 100); + } while (!time_after(jiffies, start_time + HZ)); + + netdev_warn(dev->net, "EEPROM is busy"); + return -EIO; +} + +static int lan78xx_read_raw_eeprom(struct lan78xx_net *dev, u32 offset, + u32 length, u8 *data) +{ + u32 val; + int i, ret; + + ret = lan78xx_eeprom_confirm_not_busy(dev); + if (ret) + return ret; + + for (i = 0; i < length; i++) { + val = E2P_CMD_EPC_BUSY_ | E2P_CMD_EPC_CMD_READ_; + val |= (offset & E2P_CMD_EPC_ADDR_MASK_); + ret = lan78xx_write_reg(dev, E2P_CMD, val); + if (unlikely(ret < 0)) + return -EIO; + + ret = lan78xx_wait_eeprom(dev); + if (ret < 0) + return ret; + + ret = lan78xx_read_reg(dev, E2P_DATA, &val); + if (unlikely(ret < 0)) + return -EIO; + + data[i] = val & 0xFF; + offset++; + } + + return 0; +} + +static int lan78xx_read_eeprom(struct lan78xx_net *dev, u32 offset, + u32 length, u8 *data) +{ + u8 sig; + int ret; + + ret = lan78xx_read_raw_eeprom(dev, 0, 1, &sig); + if ((ret == 0) && (sig == EEPROM_INDICATOR)) + ret = lan78xx_read_raw_eeprom(dev, offset, length, data); + else + ret = -EINVAL; + + return ret; +} + +static int lan78xx_write_raw_eeprom(struct lan78xx_net *dev, u32 offset, + u32 length, u8 *data) +{ + u32 val; + int i, ret; + + ret = lan78xx_eeprom_confirm_not_busy(dev); + if (ret) + return ret; + + /* Issue write/erase enable command */ + val = E2P_CMD_EPC_BUSY_ | E2P_CMD_EPC_CMD_EWEN_; + ret = lan78xx_write_reg(dev, E2P_CMD, val); + if (unlikely(ret < 0)) + return -EIO; + + ret = lan78xx_wait_eeprom(dev); + if (ret < 0) + return ret; + + for (i = 0; i < length; i++) { + /* Fill data register */ + val = data[i]; + ret = lan78xx_write_reg(dev, E2P_DATA, val); + if (ret < 0) + return ret; + + /* Send "write" command */ + val = E2P_CMD_EPC_BUSY_ | E2P_CMD_EPC_CMD_WRITE_; + val |= (offset & E2P_CMD_EPC_ADDR_MASK_); + ret = lan78xx_write_reg(dev, E2P_CMD, val); + if (ret < 0) + return ret; + + ret = lan78xx_wait_eeprom(dev); + if (ret < 0) + return ret; + + offset++; + } + + return 0; +} + +static int lan78xx_read_raw_otp(struct lan78xx_net *dev, u32 offset, + u32 length, u8 *data) +{ + int i; + int ret; + u32 buf; + unsigned long timeout; + + ret = lan78xx_read_reg(dev, OTP_PWR_DN, &buf); + + if (buf & OTP_PWR_DN_PWRDN_N_) { + /* clear it and wait to be cleared */ + ret = lan78xx_write_reg(dev, OTP_PWR_DN, 0); + + timeout = jiffies + HZ; + do { + usleep_range(1, 10); + ret = lan78xx_read_reg(dev, OTP_PWR_DN, &buf); + if (time_after(jiffies, timeout)) { + netdev_warn(dev->net, + "timeout on OTP_PWR_DN"); + return -EIO; + } + } while (buf & OTP_PWR_DN_PWRDN_N_); + } + + for (i = 0; i < length; i++) { + ret = lan78xx_write_reg(dev, OTP_ADDR1, + ((offset + i) >> 8) & OTP_ADDR1_15_11); + ret = lan78xx_write_reg(dev, OTP_ADDR2, + ((offset + i) & OTP_ADDR2_10_3)); + + ret = lan78xx_write_reg(dev, OTP_FUNC_CMD, OTP_FUNC_CMD_READ_); + ret = lan78xx_write_reg(dev, OTP_CMD_GO, OTP_CMD_GO_GO_); + + timeout = jiffies + HZ; + do { + udelay(1); + ret = lan78xx_read_reg(dev, OTP_STATUS, &buf); + if (time_after(jiffies, timeout)) { + netdev_warn(dev->net, + "timeout on OTP_STATUS"); + return -EIO; + } + } while (buf & OTP_STATUS_BUSY_); + + ret = lan78xx_read_reg(dev, OTP_RD_DATA, &buf); + + data[i] = (u8)(buf & 0xFF); + } + + return 0; +} + +static int lan78xx_read_otp(struct lan78xx_net *dev, u32 offset, + u32 length, u8 *data) +{ + u8 sig; + int ret; + + ret = lan78xx_read_raw_otp(dev, 0, 1, &sig); + + if (ret == 0) { + if (sig == OTP_INDICATOR_1) + offset = offset; + else if (sig == OTP_INDICATOR_2) + offset += 0x100; + else + ret = -EINVAL; + ret = lan78xx_read_raw_otp(dev, offset, length, data); + } + + return ret; +} + +static int lan78xx_dataport_wait_not_busy(struct lan78xx_net *dev) +{ + int i, ret; + + for (i = 0; i < 100; i++) { + u32 dp_sel; + + ret = lan78xx_read_reg(dev, DP_SEL, &dp_sel); + if (unlikely(ret < 0)) + return -EIO; + + if (dp_sel & DP_SEL_DPRDY_) + return 0; + + usleep_range(40, 100); + } + + netdev_warn(dev->net, "lan78xx_dataport_wait_not_busy timed out"); + + return -EIO; +} + +static int lan78xx_dataport_write(struct lan78xx_net *dev, u32 ram_select, + u32 addr, u32 length, u32 *buf) +{ + struct lan78xx_priv *pdata = (struct lan78xx_priv *)(dev->data[0]); + u32 dp_sel; + int i, ret; + + if (usb_autopm_get_interface(dev->intf) < 0) + return 0; + + mutex_lock(&pdata->dataport_mutex); + + ret = lan78xx_dataport_wait_not_busy(dev); + if (ret < 0) + goto done; + + ret = lan78xx_read_reg(dev, DP_SEL, &dp_sel); + + dp_sel &= ~DP_SEL_RSEL_MASK_; + dp_sel |= ram_select; + ret = lan78xx_write_reg(dev, DP_SEL, dp_sel); + + for (i = 0; i < length; i++) { + ret = lan78xx_write_reg(dev, DP_ADDR, addr + i); + + ret = lan78xx_write_reg(dev, DP_DATA, buf[i]); + + ret = lan78xx_write_reg(dev, DP_CMD, DP_CMD_WRITE_); + + ret = lan78xx_dataport_wait_not_busy(dev); + if (ret < 0) + goto done; + } + +done: + mutex_unlock(&pdata->dataport_mutex); + usb_autopm_put_interface(dev->intf); + + return ret; +} + +static void lan78xx_set_addr_filter(struct lan78xx_priv *pdata, + int index, u8 addr[ETH_ALEN]) +{ + u32 temp; + + if ((pdata) && (index > 0) && (index < NUM_OF_MAF)) { + temp = addr[3]; + temp = addr[2] | (temp << 8); + temp = addr[1] | (temp << 8); + temp = addr[0] | (temp << 8); + pdata->pfilter_table[index][1] = temp; + temp = addr[5]; + temp = addr[4] | (temp << 8); + temp |= MAF_HI_VALID_ | MAF_HI_TYPE_DST_; + pdata->pfilter_table[index][0] = temp; + } +} + +/* returns hash bit number for given MAC address */ +static inline u32 lan78xx_hash(char addr[ETH_ALEN]) +{ + return (ether_crc(ETH_ALEN, addr) >> 23) & 0x1ff; +} + +static void lan78xx_deferred_multicast_write(struct work_struct *param) +{ + struct lan78xx_priv *pdata = + container_of(param, struct lan78xx_priv, set_multicast); + struct lan78xx_net *dev = pdata->dev; + int i; + int ret; + + netif_dbg(dev, drv, dev->net, "deferred multicast write 0x%08x\n", + pdata->rfe_ctl); + + lan78xx_dataport_write(dev, DP_SEL_RSEL_VLAN_DA_, DP_SEL_VHF_VLAN_LEN, + DP_SEL_VHF_HASH_LEN, pdata->mchash_table); + + for (i = 1; i < NUM_OF_MAF; i++) { + ret = lan78xx_write_reg(dev, MAF_HI(i), 0); + ret = lan78xx_write_reg(dev, MAF_LO(i), + pdata->pfilter_table[i][1]); + ret = lan78xx_write_reg(dev, MAF_HI(i), + pdata->pfilter_table[i][0]); + } + + ret = lan78xx_write_reg(dev, RFE_CTL, pdata->rfe_ctl); +} + +static void lan78xx_set_multicast(struct net_device *netdev) +{ + struct lan78xx_net *dev = netdev_priv(netdev); + struct lan78xx_priv *pdata = (struct lan78xx_priv *)(dev->data[0]); + unsigned long flags; + int i; + + spin_lock_irqsave(&pdata->rfe_ctl_lock, flags); + + pdata->rfe_ctl &= ~(RFE_CTL_UCAST_EN_ | RFE_CTL_MCAST_EN_ | + RFE_CTL_DA_PERFECT_ | RFE_CTL_MCAST_HASH_); + + for (i = 0; i < DP_SEL_VHF_HASH_LEN; i++) + pdata->mchash_table[i] = 0; + /* pfilter_table[0] has own HW address */ + for (i = 1; i < NUM_OF_MAF; i++) { + pdata->pfilter_table[i][0] = + pdata->pfilter_table[i][1] = 0; + } + + pdata->rfe_ctl |= RFE_CTL_BCAST_EN_; + + if (dev->net->flags & IFF_PROMISC) { + netif_dbg(dev, drv, dev->net, "promiscuous mode enabled"); + pdata->rfe_ctl |= RFE_CTL_MCAST_EN_ | RFE_CTL_UCAST_EN_; + } else { + if (dev->net->flags & IFF_ALLMULTI) { + netif_dbg(dev, drv, dev->net, + "receive all multicast enabled"); + pdata->rfe_ctl |= RFE_CTL_MCAST_EN_; + } + } + + if (netdev_mc_count(dev->net)) { + struct netdev_hw_addr *ha; + int i; + + netif_dbg(dev, drv, dev->net, "receive multicast hash filter"); + + pdata->rfe_ctl |= RFE_CTL_DA_PERFECT_; + + i = 1; + netdev_for_each_mc_addr(ha, netdev) { + /* set first 32 into Perfect Filter */ + if (i < 33) { + lan78xx_set_addr_filter(pdata, i, ha->addr); + } else { + u32 bitnum = lan78xx_hash(ha->addr); + + pdata->mchash_table[bitnum / 32] |= + (1 << (bitnum % 32)); + pdata->rfe_ctl |= RFE_CTL_MCAST_HASH_; + } + i++; + } + } + + spin_unlock_irqrestore(&pdata->rfe_ctl_lock, flags); + + /* defer register writes to a sleepable context */ + schedule_work(&pdata->set_multicast); +} + +static int lan78xx_update_flowcontrol(struct lan78xx_net *dev, u8 duplex, + u16 lcladv, u16 rmtadv) +{ + u32 flow = 0, fct_flow = 0; + int ret; + + u8 cap = mii_resolve_flowctrl_fdx(lcladv, rmtadv); + + if (cap & FLOW_CTRL_TX) + flow = (FLOW_CR_TX_FCEN_ | 0xFFFF); + + if (cap & FLOW_CTRL_RX) + flow |= FLOW_CR_RX_FCEN_; + + if (dev->udev->speed == USB_SPEED_SUPER) + fct_flow = 0x817; + else if (dev->udev->speed == USB_SPEED_HIGH) + fct_flow = 0x211; + + netif_dbg(dev, link, dev->net, "rx pause %s, tx pause %s", + (cap & FLOW_CTRL_RX ? "enabled" : "disabled"), + (cap & FLOW_CTRL_TX ? "enabled" : "disabled")); + + ret = lan78xx_write_reg(dev, FCT_FLOW, fct_flow); + + /* threshold value should be set before enabling flow */ + ret = lan78xx_write_reg(dev, FLOW, flow); + + return 0; +} + +static int lan78xx_link_reset(struct lan78xx_net *dev) +{ + struct phy_device *phydev = dev->net->phydev; + struct ethtool_cmd ecmd = { .cmd = ETHTOOL_GSET }; + int ladv, radv, ret; + u32 buf; + + /* clear PHY interrupt status */ + ret = phy_read(phydev, LAN88XX_INT_STS); + if (unlikely(ret < 0)) + return -EIO; + + /* clear LAN78xx interrupt status */ + ret = lan78xx_write_reg(dev, INT_STS, INT_STS_PHY_INT_); + if (unlikely(ret < 0)) + return -EIO; + + phy_read_status(phydev); + + if (!phydev->link && dev->link_on) { + dev->link_on = false; + netif_carrier_off(dev->net); + + /* reset MAC */ + ret = lan78xx_read_reg(dev, MAC_CR, &buf); + if (unlikely(ret < 0)) + return -EIO; + buf |= MAC_CR_RST_; + ret = lan78xx_write_reg(dev, MAC_CR, buf); + if (unlikely(ret < 0)) + return -EIO; + } else if (phydev->link && !dev->link_on) { + dev->link_on = true; + + phy_ethtool_gset(phydev, &ecmd); + + ret = phy_read(phydev, LAN88XX_INT_STS); + + if (dev->udev->speed == USB_SPEED_SUPER) { + if (ethtool_cmd_speed(&ecmd) == 1000) { + /* disable U2 */ + ret = lan78xx_read_reg(dev, USB_CFG1, &buf); + buf &= ~USB_CFG1_DEV_U2_INIT_EN_; + ret = lan78xx_write_reg(dev, USB_CFG1, buf); + /* enable U1 */ + ret = lan78xx_read_reg(dev, USB_CFG1, &buf); + buf |= USB_CFG1_DEV_U1_INIT_EN_; + ret = lan78xx_write_reg(dev, USB_CFG1, buf); + } else { + /* enable U1 & U2 */ + ret = lan78xx_read_reg(dev, USB_CFG1, &buf); + buf |= USB_CFG1_DEV_U2_INIT_EN_; + buf |= USB_CFG1_DEV_U1_INIT_EN_; + ret = lan78xx_write_reg(dev, USB_CFG1, buf); + } + } + + ladv = phy_read(phydev, MII_ADVERTISE); + if (ladv < 0) + return ladv; + + radv = phy_read(phydev, MII_LPA); + if (radv < 0) + return radv; + + netif_dbg(dev, link, dev->net, + "speed: %u duplex: %d anadv: 0x%04x anlpa: 0x%04x", + ethtool_cmd_speed(&ecmd), ecmd.duplex, ladv, radv); + + ret = lan78xx_update_flowcontrol(dev, ecmd.duplex, ladv, radv); + netif_carrier_on(dev->net); + } + + return ret; +} + +/* some work can't be done in tasklets, so we use keventd + * + * NOTE: annoying asymmetry: if it's active, schedule_work() fails, + * but tasklet_schedule() doesn't. hope the failure is rare. + */ +void lan78xx_defer_kevent(struct lan78xx_net *dev, int work) +{ + set_bit(work, &dev->flags); + if (!schedule_delayed_work(&dev->wq, 0)) + netdev_err(dev->net, "kevent %d may have been dropped\n", work); +} + +static void lan78xx_status(struct lan78xx_net *dev, struct urb *urb) +{ + u32 intdata; + + if (urb->actual_length != 4) { + netdev_warn(dev->net, + "unexpected urb length %d", urb->actual_length); + return; + } + + memcpy(&intdata, urb->transfer_buffer, 4); + le32_to_cpus(&intdata); + + if (intdata & INT_ENP_PHY_INT) { + netif_dbg(dev, link, dev->net, "PHY INTR: 0x%08x\n", intdata); + lan78xx_defer_kevent(dev, EVENT_LINK_RESET); + } else + netdev_warn(dev->net, + "unexpected interrupt: 0x%08x\n", intdata); +} + +static int lan78xx_ethtool_get_eeprom_len(struct net_device *netdev) +{ + return MAX_EEPROM_SIZE; +} + +static int lan78xx_ethtool_get_eeprom(struct net_device *netdev, + struct ethtool_eeprom *ee, u8 *data) +{ + struct lan78xx_net *dev = netdev_priv(netdev); + + ee->magic = LAN78XX_EEPROM_MAGIC; + + return lan78xx_read_raw_eeprom(dev, ee->offset, ee->len, data); +} + +static int lan78xx_ethtool_set_eeprom(struct net_device *netdev, + struct ethtool_eeprom *ee, u8 *data) +{ + struct lan78xx_net *dev = netdev_priv(netdev); + + /* Allow entire eeprom update only */ + if ((ee->magic == LAN78XX_EEPROM_MAGIC) && + (ee->offset == 0) && + (ee->len == 512) && + (data[0] == EEPROM_INDICATOR)) + return lan78xx_write_raw_eeprom(dev, ee->offset, ee->len, data); + else if ((ee->magic == LAN78XX_OTP_MAGIC) && + (ee->offset == 0) && + (ee->len == 512) && + (data[0] == OTP_INDICATOR_1)) + return lan78xx_write_raw_eeprom(dev, ee->offset, ee->len, data); + + return -EINVAL; +} + +static void lan78xx_get_strings(struct net_device *netdev, u32 stringset, + u8 *data) +{ + if (stringset == ETH_SS_STATS) + memcpy(data, lan78xx_gstrings, sizeof(lan78xx_gstrings)); +} + +static int lan78xx_get_sset_count(struct net_device *netdev, int sset) +{ + if (sset == ETH_SS_STATS) + return ARRAY_SIZE(lan78xx_gstrings); + else + return -EOPNOTSUPP; +} + +static void lan78xx_get_stats(struct net_device *netdev, + struct ethtool_stats *stats, u64 *data) +{ + struct lan78xx_net *dev = netdev_priv(netdev); + struct lan78xx_statstage lan78xx_stat; + u32 *p; + int i; + + if (usb_autopm_get_interface(dev->intf) < 0) + return; + + if (lan78xx_read_stats(dev, &lan78xx_stat) > 0) { + p = (u32 *)&lan78xx_stat; + for (i = 0; i < (sizeof(lan78xx_stat) / (sizeof(u32))); i++) + data[i] = p[i]; + } + + usb_autopm_put_interface(dev->intf); +} + +static void lan78xx_get_wol(struct net_device *netdev, + struct ethtool_wolinfo *wol) +{ + struct lan78xx_net *dev = netdev_priv(netdev); + int ret; + u32 buf; + struct lan78xx_priv *pdata = (struct lan78xx_priv *)(dev->data[0]); + + if (usb_autopm_get_interface(dev->intf) < 0) + return; + + ret = lan78xx_read_reg(dev, USB_CFG0, &buf); + if (unlikely(ret < 0)) { + wol->supported = 0; + wol->wolopts = 0; + } else { + if (buf & USB_CFG_RMT_WKP_) { + wol->supported = WAKE_ALL; + wol->wolopts = pdata->wol; + } else { + wol->supported = 0; + wol->wolopts = 0; + } + } + + usb_autopm_put_interface(dev->intf); +} + +static int lan78xx_set_wol(struct net_device *netdev, + struct ethtool_wolinfo *wol) +{ + struct lan78xx_net *dev = netdev_priv(netdev); + struct lan78xx_priv *pdata = (struct lan78xx_priv *)(dev->data[0]); + int ret; + + ret = usb_autopm_get_interface(dev->intf); + if (ret < 0) + return ret; + + pdata->wol = 0; + if (wol->wolopts & WAKE_UCAST) + pdata->wol |= WAKE_UCAST; + if (wol->wolopts & WAKE_MCAST) + pdata->wol |= WAKE_MCAST; + if (wol->wolopts & WAKE_BCAST) + pdata->wol |= WAKE_BCAST; + if (wol->wolopts & WAKE_MAGIC) + pdata->wol |= WAKE_MAGIC; + if (wol->wolopts & WAKE_PHY) + pdata->wol |= WAKE_PHY; + if (wol->wolopts & WAKE_ARP) + pdata->wol |= WAKE_ARP; + + device_set_wakeup_enable(&dev->udev->dev, (bool)wol->wolopts); + + phy_ethtool_set_wol(netdev->phydev, wol); + + usb_autopm_put_interface(dev->intf); + + return ret; +} + +static int lan78xx_get_eee(struct net_device *net, struct ethtool_eee *edata) +{ + struct lan78xx_net *dev = netdev_priv(net); + struct phy_device *phydev = net->phydev; + int ret; + u32 buf; + + ret = usb_autopm_get_interface(dev->intf); + if (ret < 0) + return ret; + + ret = phy_ethtool_get_eee(phydev, edata); + if (ret < 0) + goto exit; + + ret = lan78xx_read_reg(dev, MAC_CR, &buf); + if (buf & MAC_CR_EEE_EN_) { + edata->eee_enabled = true; + edata->eee_active = !!(edata->advertised & + edata->lp_advertised); + edata->tx_lpi_enabled = true; + /* EEE_TX_LPI_REQ_DLY & tx_lpi_timer are same uSec unit */ + ret = lan78xx_read_reg(dev, EEE_TX_LPI_REQ_DLY, &buf); + edata->tx_lpi_timer = buf; + } else { + edata->eee_enabled = false; + edata->eee_active = false; + edata->tx_lpi_enabled = false; + edata->tx_lpi_timer = 0; + } + + ret = 0; +exit: + usb_autopm_put_interface(dev->intf); + + return ret; +} + +static int lan78xx_set_eee(struct net_device *net, struct ethtool_eee *edata) +{ + struct lan78xx_net *dev = netdev_priv(net); + int ret; + u32 buf; + + ret = usb_autopm_get_interface(dev->intf); + if (ret < 0) + return ret; + + if (edata->eee_enabled) { + ret = lan78xx_read_reg(dev, MAC_CR, &buf); + buf |= MAC_CR_EEE_EN_; + ret = lan78xx_write_reg(dev, MAC_CR, buf); + + phy_ethtool_set_eee(net->phydev, edata); + + buf = (u32)edata->tx_lpi_timer; + ret = lan78xx_write_reg(dev, EEE_TX_LPI_REQ_DLY, buf); + } else { + ret = lan78xx_read_reg(dev, MAC_CR, &buf); + buf &= ~MAC_CR_EEE_EN_; + ret = lan78xx_write_reg(dev, MAC_CR, buf); + } + + usb_autopm_put_interface(dev->intf); + + return 0; +} + +static u32 lan78xx_get_link(struct net_device *net) +{ + phy_read_status(net->phydev); + + return net->phydev->link; +} + +int lan78xx_nway_reset(struct net_device *net) +{ + return phy_start_aneg(net->phydev); +} + +static void lan78xx_get_drvinfo(struct net_device *net, + struct ethtool_drvinfo *info) +{ + struct lan78xx_net *dev = netdev_priv(net); + + strncpy(info->driver, DRIVER_NAME, sizeof(info->driver)); + strncpy(info->version, DRIVER_VERSION, sizeof(info->version)); + usb_make_path(dev->udev, info->bus_info, sizeof(info->bus_info)); +} + +static u32 lan78xx_get_msglevel(struct net_device *net) +{ + struct lan78xx_net *dev = netdev_priv(net); + + return dev->msg_enable; +} + +static void lan78xx_set_msglevel(struct net_device *net, u32 level) +{ + struct lan78xx_net *dev = netdev_priv(net); + + dev->msg_enable = level; +} + +static int lan78xx_get_mdix_status(struct net_device *net) +{ + struct phy_device *phydev = net->phydev; + int buf; + + phy_write(phydev, LAN88XX_EXT_PAGE_ACCESS, LAN88XX_EXT_PAGE_SPACE_1); + buf = phy_read(phydev, LAN88XX_EXT_MODE_CTRL); + phy_write(phydev, LAN88XX_EXT_PAGE_ACCESS, LAN88XX_EXT_PAGE_SPACE_0); + + return buf; +} + +static void lan78xx_set_mdix_status(struct net_device *net, __u8 mdix_ctrl) +{ + struct lan78xx_net *dev = netdev_priv(net); + struct phy_device *phydev = net->phydev; + int buf; + + if (mdix_ctrl == ETH_TP_MDI) { + phy_write(phydev, LAN88XX_EXT_PAGE_ACCESS, + LAN88XX_EXT_PAGE_SPACE_1); + buf = phy_read(phydev, LAN88XX_EXT_MODE_CTRL); + buf &= ~LAN88XX_EXT_MODE_CTRL_MDIX_MASK_; + phy_write(phydev, LAN88XX_EXT_MODE_CTRL, + buf | LAN88XX_EXT_MODE_CTRL_MDI_); + phy_write(phydev, LAN88XX_EXT_PAGE_ACCESS, + LAN88XX_EXT_PAGE_SPACE_0); + } else if (mdix_ctrl == ETH_TP_MDI_X) { + phy_write(phydev, LAN88XX_EXT_PAGE_ACCESS, + LAN88XX_EXT_PAGE_SPACE_1); + buf = phy_read(phydev, LAN88XX_EXT_MODE_CTRL); + buf &= ~LAN88XX_EXT_MODE_CTRL_MDIX_MASK_; + phy_write(phydev, LAN88XX_EXT_MODE_CTRL, + buf | LAN88XX_EXT_MODE_CTRL_MDI_X_); + phy_write(phydev, LAN88XX_EXT_PAGE_ACCESS, + LAN88XX_EXT_PAGE_SPACE_0); + } else if (mdix_ctrl == ETH_TP_MDI_AUTO) { + phy_write(phydev, LAN88XX_EXT_PAGE_ACCESS, + LAN88XX_EXT_PAGE_SPACE_1); + buf = phy_read(phydev, LAN88XX_EXT_MODE_CTRL); + buf &= ~LAN88XX_EXT_MODE_CTRL_MDIX_MASK_; + phy_write(phydev, LAN88XX_EXT_MODE_CTRL, + buf | LAN88XX_EXT_MODE_CTRL_AUTO_MDIX_); + phy_write(phydev, LAN88XX_EXT_PAGE_ACCESS, + LAN88XX_EXT_PAGE_SPACE_0); + } + dev->mdix_ctrl = mdix_ctrl; +} + +static int lan78xx_get_settings(struct net_device *net, struct ethtool_cmd *cmd) +{ + struct lan78xx_net *dev = netdev_priv(net); + struct phy_device *phydev = net->phydev; + int ret; + int buf; + + ret = usb_autopm_get_interface(dev->intf); + if (ret < 0) + return ret; + + ret = phy_ethtool_gset(phydev, cmd); + + buf = lan78xx_get_mdix_status(net); + + buf &= LAN88XX_EXT_MODE_CTRL_MDIX_MASK_; + if (buf == LAN88XX_EXT_MODE_CTRL_AUTO_MDIX_) { + cmd->eth_tp_mdix = ETH_TP_MDI_AUTO; + cmd->eth_tp_mdix_ctrl = ETH_TP_MDI_AUTO; + } else if (buf == LAN88XX_EXT_MODE_CTRL_MDI_) { + cmd->eth_tp_mdix = ETH_TP_MDI; + cmd->eth_tp_mdix_ctrl = ETH_TP_MDI; + } else if (buf == LAN88XX_EXT_MODE_CTRL_MDI_X_) { + cmd->eth_tp_mdix = ETH_TP_MDI_X; + cmd->eth_tp_mdix_ctrl = ETH_TP_MDI_X; + } + + usb_autopm_put_interface(dev->intf); + + return ret; +} + +static int lan78xx_set_settings(struct net_device *net, struct ethtool_cmd *cmd) +{ + struct lan78xx_net *dev = netdev_priv(net); + struct phy_device *phydev = net->phydev; + int ret = 0; + int temp; + + ret = usb_autopm_get_interface(dev->intf); + if (ret < 0) + return ret; + + if (dev->mdix_ctrl != cmd->eth_tp_mdix_ctrl) { + lan78xx_set_mdix_status(net, cmd->eth_tp_mdix_ctrl); + } + + /* change speed & duplex */ + ret = phy_ethtool_sset(phydev, cmd); + + if (!cmd->autoneg) { + /* force link down */ + temp = phy_read(phydev, MII_BMCR); + phy_write(phydev, MII_BMCR, temp | BMCR_LOOPBACK); + mdelay(1); + phy_write(phydev, MII_BMCR, temp); + } + + usb_autopm_put_interface(dev->intf); + + return ret; +} + +static const struct ethtool_ops lan78xx_ethtool_ops = { + .get_link = lan78xx_get_link, + .nway_reset = lan78xx_nway_reset, + .get_drvinfo = lan78xx_get_drvinfo, + .get_msglevel = lan78xx_get_msglevel, + .set_msglevel = lan78xx_set_msglevel, + .get_settings = lan78xx_get_settings, + .set_settings = lan78xx_set_settings, + .get_eeprom_len = lan78xx_ethtool_get_eeprom_len, + .get_eeprom = lan78xx_ethtool_get_eeprom, + .set_eeprom = lan78xx_ethtool_set_eeprom, + .get_ethtool_stats = lan78xx_get_stats, + .get_sset_count = lan78xx_get_sset_count, + .get_strings = lan78xx_get_strings, + .get_wol = lan78xx_get_wol, + .set_wol = lan78xx_set_wol, + .get_eee = lan78xx_get_eee, + .set_eee = lan78xx_set_eee, +}; + +static int lan78xx_ioctl(struct net_device *netdev, struct ifreq *rq, int cmd) +{ + if (!netif_running(netdev)) + return -EINVAL; + + return phy_mii_ioctl(netdev->phydev, rq, cmd); +} + +static void lan78xx_init_mac_address(struct lan78xx_net *dev) +{ + u32 addr_lo, addr_hi; + int ret; + u8 addr[6]; + + ret = lan78xx_read_reg(dev, RX_ADDRL, &addr_lo); + ret = lan78xx_read_reg(dev, RX_ADDRH, &addr_hi); + + addr[0] = addr_lo & 0xFF; + addr[1] = (addr_lo >> 8) & 0xFF; + addr[2] = (addr_lo >> 16) & 0xFF; + addr[3] = (addr_lo >> 24) & 0xFF; + addr[4] = addr_hi & 0xFF; + addr[5] = (addr_hi >> 8) & 0xFF; + + if (!is_valid_ether_addr(addr)) { + /* reading mac address from EEPROM or OTP */ + if ((lan78xx_read_eeprom(dev, EEPROM_MAC_OFFSET, ETH_ALEN, + addr) == 0) || + (lan78xx_read_otp(dev, EEPROM_MAC_OFFSET, ETH_ALEN, + addr) == 0)) { + if (is_valid_ether_addr(addr)) { + /* eeprom values are valid so use them */ + netif_dbg(dev, ifup, dev->net, + "MAC address read from EEPROM"); + } else { + /* generate random MAC */ + random_ether_addr(addr); + netif_dbg(dev, ifup, dev->net, + "MAC address set to random addr"); + } + + addr_lo = addr[0] | (addr[1] << 8) | + (addr[2] << 16) | (addr[3] << 24); + addr_hi = addr[4] | (addr[5] << 8); + + ret = lan78xx_write_reg(dev, RX_ADDRL, addr_lo); + ret = lan78xx_write_reg(dev, RX_ADDRH, addr_hi); + } else { + /* generate random MAC */ + random_ether_addr(addr); + netif_dbg(dev, ifup, dev->net, + "MAC address set to random addr"); + } + } + + ret = lan78xx_write_reg(dev, MAF_LO(0), addr_lo); + ret = lan78xx_write_reg(dev, MAF_HI(0), addr_hi | MAF_HI_VALID_); + + ether_addr_copy(dev->net->dev_addr, addr); +} + +/* MDIO read and write wrappers for phylib */ +static int lan78xx_mdiobus_read(struct mii_bus *bus, int phy_id, int idx) +{ + struct lan78xx_net *dev = bus->priv; + u32 val, addr; + int ret; + + ret = usb_autopm_get_interface(dev->intf); + if (ret < 0) + return ret; + + mutex_lock(&dev->phy_mutex); + + /* confirm MII not busy */ + ret = lan78xx_phy_wait_not_busy(dev); + if (ret < 0) + goto done; + + /* set the address, index & direction (read from PHY) */ + addr = mii_access(phy_id, idx, MII_READ); + ret = lan78xx_write_reg(dev, MII_ACC, addr); + + ret = lan78xx_phy_wait_not_busy(dev); + if (ret < 0) + goto done; + + ret = lan78xx_read_reg(dev, MII_DATA, &val); + + ret = (int)(val & 0xFFFF); + +done: + mutex_unlock(&dev->phy_mutex); + usb_autopm_put_interface(dev->intf); + return ret; +} + +static int lan78xx_mdiobus_write(struct mii_bus *bus, int phy_id, int idx, + u16 regval) +{ + struct lan78xx_net *dev = bus->priv; + u32 val, addr; + int ret; + + ret = usb_autopm_get_interface(dev->intf); + if (ret < 0) + return ret; + + mutex_lock(&dev->phy_mutex); + + /* confirm MII not busy */ + ret = lan78xx_phy_wait_not_busy(dev); + if (ret < 0) + goto done; + + val = (u32)regval; + ret = lan78xx_write_reg(dev, MII_DATA, val); + + /* set the address, index & direction (write to PHY) */ + addr = mii_access(phy_id, idx, MII_WRITE); + ret = lan78xx_write_reg(dev, MII_ACC, addr); + + ret = lan78xx_phy_wait_not_busy(dev); + if (ret < 0) + goto done; + +done: + mutex_unlock(&dev->phy_mutex); + usb_autopm_put_interface(dev->intf); + return 0; +} + +static int lan78xx_mdio_init(struct lan78xx_net *dev) +{ + int ret; + int i; + + dev->mdiobus = mdiobus_alloc(); + if (!dev->mdiobus) { + netdev_err(dev->net, "can't allocate MDIO bus\n"); + return -ENOMEM; + } + + dev->mdiobus->priv = (void *)dev; + dev->mdiobus->read = lan78xx_mdiobus_read; + dev->mdiobus->write = lan78xx_mdiobus_write; + dev->mdiobus->name = "lan78xx-mdiobus"; + + snprintf(dev->mdiobus->id, MII_BUS_ID_SIZE, "usb-%03d:%03d", + dev->udev->bus->busnum, dev->udev->devnum); + + dev->mdiobus->irq = kzalloc(sizeof(int) * PHY_MAX_ADDR, GFP_KERNEL); + if (!dev->mdiobus->irq) { + ret = -ENOMEM; + goto exit1; + } + + /* handle our own interrupt */ + for (i = 0; i < PHY_MAX_ADDR; i++) + dev->mdiobus->irq[i] = PHY_IGNORE_INTERRUPT; + + switch (dev->devid & ID_REV_CHIP_ID_MASK_) { + case 0x78000000: + case 0x78500000: + /* set to internal PHY id */ + dev->mdiobus->phy_mask = ~(1 << 1); + break; + } + + ret = mdiobus_register(dev->mdiobus); + if (ret) { + netdev_err(dev->net, "can't register MDIO bus\n"); + goto exit2; + } + + netdev_dbg(dev->net, "registered mdiobus bus %s\n", dev->mdiobus->id); + return 0; +exit2: + kfree(dev->mdiobus->irq); +exit1: + mdiobus_free(dev->mdiobus); + return ret; +} + +static void lan78xx_remove_mdio(struct lan78xx_net *dev) +{ + mdiobus_unregister(dev->mdiobus); + kfree(dev->mdiobus->irq); + mdiobus_free(dev->mdiobus); +} + +static void lan78xx_link_status_change(struct net_device *net) +{ + /* nothing to do */ +} + +static int lan78xx_phy_init(struct lan78xx_net *dev) +{ + int ret; + struct phy_device *phydev = dev->net->phydev; + + phydev = phy_find_first(dev->mdiobus); + if (!phydev) { + netdev_err(dev->net, "no PHY found\n"); + return -EIO; + } + + ret = phy_connect_direct(dev->net, phydev, + lan78xx_link_status_change, + PHY_INTERFACE_MODE_GMII); + if (ret) { + netdev_err(dev->net, "can't attach PHY to %s\n", + dev->mdiobus->id); + return -EIO; + } + + /* set to AUTOMDIX */ + lan78xx_set_mdix_status(dev->net, ETH_TP_MDI_AUTO); + + /* MAC doesn't support 1000T Half */ + phydev->supported &= ~SUPPORTED_1000baseT_Half; + phydev->supported |= (SUPPORTED_10baseT_Half | + SUPPORTED_10baseT_Full | + SUPPORTED_100baseT_Half | + SUPPORTED_100baseT_Full | + SUPPORTED_1000baseT_Full | + SUPPORTED_Pause | SUPPORTED_Asym_Pause); + genphy_config_aneg(phydev); + + /* Workaround to enable PHY interrupt. + * phy_start_interrupts() is API for requesting and enabling + * PHY interrupt. However, USB-to-Ethernet device can't use + * request_irq() called in phy_start_interrupts(). + * Set PHY to PHY_HALTED and call phy_start() + * to make a call to phy_enable_interrupts() + */ + phy_stop(phydev); + phy_start(phydev); + + netif_dbg(dev, ifup, dev->net, "phy initialised successfully"); + + return 0; +} + +static int lan78xx_set_rx_max_frame_length(struct lan78xx_net *dev, int size) +{ + int ret = 0; + u32 buf; + bool rxenabled; + + ret = lan78xx_read_reg(dev, MAC_RX, &buf); + + rxenabled = ((buf & MAC_RX_RXEN_) != 0); + + if (rxenabled) { + buf &= ~MAC_RX_RXEN_; + ret = lan78xx_write_reg(dev, MAC_RX, buf); + } + + /* add 4 to size for FCS */ + buf &= ~MAC_RX_MAX_SIZE_MASK_; + buf |= (((size + 4) << MAC_RX_MAX_SIZE_SHIFT_) & MAC_RX_MAX_SIZE_MASK_); + + ret = lan78xx_write_reg(dev, MAC_RX, buf); + + if (rxenabled) { + buf |= MAC_RX_RXEN_; + ret = lan78xx_write_reg(dev, MAC_RX, buf); + } + + return 0; +} + +static int unlink_urbs(struct lan78xx_net *dev, struct sk_buff_head *q) +{ + struct sk_buff *skb; + unsigned long flags; + int count = 0; + + spin_lock_irqsave(&q->lock, flags); + while (!skb_queue_empty(q)) { + struct skb_data *entry; + struct urb *urb; + int ret; + + skb_queue_walk(q, skb) { + entry = (struct skb_data *)skb->cb; + if (entry->state != unlink_start) + goto found; + } + break; +found: + entry->state = unlink_start; + urb = entry->urb; + + /* Get reference count of the URB to avoid it to be + * freed during usb_unlink_urb, which may trigger + * use-after-free problem inside usb_unlink_urb since + * usb_unlink_urb is always racing with .complete + * handler(include defer_bh). + */ + usb_get_urb(urb); + spin_unlock_irqrestore(&q->lock, flags); + /* during some PM-driven resume scenarios, + * these (async) unlinks complete immediately + */ + ret = usb_unlink_urb(urb); + if (ret != -EINPROGRESS && ret != 0) + netdev_dbg(dev->net, "unlink urb err, %d\n", ret); + else + count++; + usb_put_urb(urb); + spin_lock_irqsave(&q->lock, flags); + } + spin_unlock_irqrestore(&q->lock, flags); + return count; +} + +static int lan78xx_change_mtu(struct net_device *netdev, int new_mtu) +{ + struct lan78xx_net *dev = netdev_priv(netdev); + int ll_mtu = new_mtu + netdev->hard_header_len; + int old_hard_mtu = dev->hard_mtu; + int old_rx_urb_size = dev->rx_urb_size; + int ret; + + if (new_mtu > MAX_SINGLE_PACKET_SIZE) + return -EINVAL; + + if (new_mtu <= 0) + return -EINVAL; + /* no second zero-length packet read wanted after mtu-sized packets */ + if ((ll_mtu % dev->maxpacket) == 0) + return -EDOM; + + ret = lan78xx_set_rx_max_frame_length(dev, new_mtu + ETH_HLEN); + + netdev->mtu = new_mtu; + + dev->hard_mtu = netdev->mtu + netdev->hard_header_len; + if (dev->rx_urb_size == old_hard_mtu) { + dev->rx_urb_size = dev->hard_mtu; + if (dev->rx_urb_size > old_rx_urb_size) { + if (netif_running(dev->net)) { + unlink_urbs(dev, &dev->rxq); + tasklet_schedule(&dev->bh); + } + } + } + + return 0; +} + +int lan78xx_set_mac_addr(struct net_device *netdev, void *p) +{ + struct lan78xx_net *dev = netdev_priv(netdev); + struct sockaddr *addr = p; + u32 addr_lo, addr_hi; + int ret; + + if (netif_running(netdev)) + return -EBUSY; + + if (!is_valid_ether_addr(addr->sa_data)) + return -EADDRNOTAVAIL; + + ether_addr_copy(netdev->dev_addr, addr->sa_data); + + addr_lo = netdev->dev_addr[0] | + netdev->dev_addr[1] << 8 | + netdev->dev_addr[2] << 16 | + netdev->dev_addr[3] << 24; + addr_hi = netdev->dev_addr[4] | + netdev->dev_addr[5] << 8; + + ret = lan78xx_write_reg(dev, RX_ADDRL, addr_lo); + ret = lan78xx_write_reg(dev, RX_ADDRH, addr_hi); + + return 0; +} + +/* Enable or disable Rx checksum offload engine */ +static int lan78xx_set_features(struct net_device *netdev, + netdev_features_t features) +{ + struct lan78xx_net *dev = netdev_priv(netdev); + struct lan78xx_priv *pdata = (struct lan78xx_priv *)(dev->data[0]); + unsigned long flags; + int ret; + + spin_lock_irqsave(&pdata->rfe_ctl_lock, flags); + + if (features & NETIF_F_RXCSUM) { + pdata->rfe_ctl |= RFE_CTL_TCPUDP_COE_ | RFE_CTL_IP_COE_; + pdata->rfe_ctl |= RFE_CTL_ICMP_COE_ | RFE_CTL_IGMP_COE_; + } else { + pdata->rfe_ctl &= ~(RFE_CTL_TCPUDP_COE_ | RFE_CTL_IP_COE_); + pdata->rfe_ctl &= ~(RFE_CTL_ICMP_COE_ | RFE_CTL_IGMP_COE_); + } + + if (features & NETIF_F_HW_VLAN_CTAG_RX) + pdata->rfe_ctl |= RFE_CTL_VLAN_FILTER_; + else + pdata->rfe_ctl &= ~RFE_CTL_VLAN_FILTER_; + + spin_unlock_irqrestore(&pdata->rfe_ctl_lock, flags); + + ret = lan78xx_write_reg(dev, RFE_CTL, pdata->rfe_ctl); + + return 0; +} + +static void lan78xx_deferred_vlan_write(struct work_struct *param) +{ + struct lan78xx_priv *pdata = + container_of(param, struct lan78xx_priv, set_vlan); + struct lan78xx_net *dev = pdata->dev; + + lan78xx_dataport_write(dev, DP_SEL_RSEL_VLAN_DA_, 0, + DP_SEL_VHF_VLAN_LEN, pdata->vlan_table); +} + +static int lan78xx_vlan_rx_add_vid(struct net_device *netdev, + __be16 proto, u16 vid) +{ + struct lan78xx_net *dev = netdev_priv(netdev); + struct lan78xx_priv *pdata = (struct lan78xx_priv *)(dev->data[0]); + u16 vid_bit_index; + u16 vid_dword_index; + + vid_dword_index = (vid >> 5) & 0x7F; + vid_bit_index = vid & 0x1F; + + pdata->vlan_table[vid_dword_index] |= (1 << vid_bit_index); + + /* defer register writes to a sleepable context */ + schedule_work(&pdata->set_vlan); + + return 0; +} + +static int lan78xx_vlan_rx_kill_vid(struct net_device *netdev, + __be16 proto, u16 vid) +{ + struct lan78xx_net *dev = netdev_priv(netdev); + struct lan78xx_priv *pdata = (struct lan78xx_priv *)(dev->data[0]); + u16 vid_bit_index; + u16 vid_dword_index; + + vid_dword_index = (vid >> 5) & 0x7F; + vid_bit_index = vid & 0x1F; + + pdata->vlan_table[vid_dword_index] &= ~(1 << vid_bit_index); + + /* defer register writes to a sleepable context */ + schedule_work(&pdata->set_vlan); + + return 0; +} + +static void lan78xx_init_ltm(struct lan78xx_net *dev) +{ + int ret; + u32 buf; + u32 regs[6] = { 0 }; + + ret = lan78xx_read_reg(dev, USB_CFG1, &buf); + if (buf & USB_CFG1_LTM_ENABLE_) { + u8 temp[2]; + /* Get values from EEPROM first */ + if (lan78xx_read_eeprom(dev, 0x3F, 2, temp) == 0) { + if (temp[0] == 24) { + ret = lan78xx_read_raw_eeprom(dev, + temp[1] * 2, + 24, + (u8 *)regs); + if (ret < 0) + return; + } + } else if (lan78xx_read_otp(dev, 0x3F, 2, temp) == 0) { + if (temp[0] == 24) { + ret = lan78xx_read_raw_otp(dev, + temp[1] * 2, + 24, + (u8 *)regs); + if (ret < 0) + return; + } + } + } + + lan78xx_write_reg(dev, LTM_BELT_IDLE0, regs[0]); + lan78xx_write_reg(dev, LTM_BELT_IDLE1, regs[1]); + lan78xx_write_reg(dev, LTM_BELT_ACT0, regs[2]); + lan78xx_write_reg(dev, LTM_BELT_ACT1, regs[3]); + lan78xx_write_reg(dev, LTM_INACTIVE0, regs[4]); + lan78xx_write_reg(dev, LTM_INACTIVE1, regs[5]); +} + +static int lan78xx_reset(struct lan78xx_net *dev) +{ + struct lan78xx_priv *pdata = (struct lan78xx_priv *)(dev->data[0]); + u32 buf; + int ret = 0; + unsigned long timeout; + + ret = lan78xx_read_reg(dev, HW_CFG, &buf); + buf |= HW_CFG_LRST_; + ret = lan78xx_write_reg(dev, HW_CFG, buf); + + timeout = jiffies + HZ; + do { + mdelay(1); + ret = lan78xx_read_reg(dev, HW_CFG, &buf); + if (time_after(jiffies, timeout)) { + netdev_warn(dev->net, + "timeout on completion of LiteReset"); + return -EIO; + } + } while (buf & HW_CFG_LRST_); + + lan78xx_init_mac_address(dev); + + /* save DEVID for later usage */ + ret = lan78xx_read_reg(dev, ID_REV, &buf); + dev->devid = buf; + + /* Respond to the IN token with a NAK */ + ret = lan78xx_read_reg(dev, USB_CFG0, &buf); + buf |= USB_CFG_BIR_; + ret = lan78xx_write_reg(dev, USB_CFG0, buf); + + /* Init LTM */ + lan78xx_init_ltm(dev); + + dev->net->hard_header_len += TX_OVERHEAD; + dev->hard_mtu = dev->net->mtu + dev->net->hard_header_len; + + if (dev->udev->speed == USB_SPEED_SUPER) { + buf = DEFAULT_BURST_CAP_SIZE / SS_USB_PKT_SIZE; + dev->rx_urb_size = DEFAULT_BURST_CAP_SIZE; + dev->rx_qlen = 4; + dev->tx_qlen = 4; + } else if (dev->udev->speed == USB_SPEED_HIGH) { + buf = DEFAULT_BURST_CAP_SIZE / HS_USB_PKT_SIZE; + dev->rx_urb_size = DEFAULT_BURST_CAP_SIZE; + dev->rx_qlen = RX_MAX_QUEUE_MEMORY / dev->rx_urb_size; + dev->tx_qlen = RX_MAX_QUEUE_MEMORY / dev->hard_mtu; + } else { + buf = DEFAULT_BURST_CAP_SIZE / FS_USB_PKT_SIZE; + dev->rx_urb_size = DEFAULT_BURST_CAP_SIZE; + dev->rx_qlen = 4; + } + + ret = lan78xx_write_reg(dev, BURST_CAP, buf); + ret = lan78xx_write_reg(dev, BULK_IN_DLY, DEFAULT_BULK_IN_DELAY); + + ret = lan78xx_read_reg(dev, HW_CFG, &buf); + buf |= HW_CFG_MEF_; + ret = lan78xx_write_reg(dev, HW_CFG, buf); + + ret = lan78xx_read_reg(dev, USB_CFG0, &buf); + buf |= USB_CFG_BCE_; + ret = lan78xx_write_reg(dev, USB_CFG0, buf); + + /* set FIFO sizes */ + buf = (MAX_RX_FIFO_SIZE - 512) / 512; + ret = lan78xx_write_reg(dev, FCT_RX_FIFO_END, buf); + + buf = (MAX_TX_FIFO_SIZE - 512) / 512; + ret = lan78xx_write_reg(dev, FCT_TX_FIFO_END, buf); + + ret = lan78xx_write_reg(dev, INT_STS, INT_STS_CLEAR_ALL_); + ret = lan78xx_write_reg(dev, FLOW, 0); + ret = lan78xx_write_reg(dev, FCT_FLOW, 0); + + /* Don't need rfe_ctl_lock during initialisation */ + ret = lan78xx_read_reg(dev, RFE_CTL, &pdata->rfe_ctl); + pdata->rfe_ctl |= RFE_CTL_BCAST_EN_ | RFE_CTL_DA_PERFECT_; + ret = lan78xx_write_reg(dev, RFE_CTL, pdata->rfe_ctl); + + /* Enable or disable checksum offload engines */ + lan78xx_set_features(dev->net, dev->net->features); + + lan78xx_set_multicast(dev->net); + + /* reset PHY */ + ret = lan78xx_read_reg(dev, PMT_CTL, &buf); + buf |= PMT_CTL_PHY_RST_; + ret = lan78xx_write_reg(dev, PMT_CTL, buf); + + timeout = jiffies + HZ; + do { + mdelay(1); + ret = lan78xx_read_reg(dev, PMT_CTL, &buf); + if (time_after(jiffies, timeout)) { + netdev_warn(dev->net, "timeout waiting for PHY Reset"); + return -EIO; + } + } while ((buf & PMT_CTL_PHY_RST_) || !(buf & PMT_CTL_READY_)); + + ret = lan78xx_read_reg(dev, MAC_CR, &buf); + buf |= MAC_CR_AUTO_DUPLEX_ | MAC_CR_AUTO_SPEED_; + ret = lan78xx_write_reg(dev, MAC_CR, buf); + + /* enable PHY interrupts */ + ret = lan78xx_read_reg(dev, INT_EP_CTL, &buf); + buf |= INT_ENP_PHY_INT; + ret = lan78xx_write_reg(dev, INT_EP_CTL, buf); + + ret = lan78xx_read_reg(dev, MAC_TX, &buf); + buf |= MAC_TX_TXEN_; + ret = lan78xx_write_reg(dev, MAC_TX, buf); + + ret = lan78xx_read_reg(dev, FCT_TX_CTL, &buf); + buf |= FCT_TX_CTL_EN_; + ret = lan78xx_write_reg(dev, FCT_TX_CTL, buf); + + ret = lan78xx_set_rx_max_frame_length(dev, dev->net->mtu + ETH_HLEN); + + ret = lan78xx_read_reg(dev, MAC_RX, &buf); + buf |= MAC_RX_RXEN_; + ret = lan78xx_write_reg(dev, MAC_RX, buf); + + ret = lan78xx_read_reg(dev, FCT_RX_CTL, &buf); + buf |= FCT_RX_CTL_EN_; + ret = lan78xx_write_reg(dev, FCT_RX_CTL, buf); + + return 0; +} + +static int lan78xx_open(struct net_device *net) +{ + struct lan78xx_net *dev = netdev_priv(net); + int ret; + + ret = usb_autopm_get_interface(dev->intf); + if (ret < 0) + goto out; + + ret = lan78xx_reset(dev); + if (ret < 0) + goto done; + + ret = lan78xx_phy_init(dev); + if (ret < 0) + goto done; + + /* for Link Check */ + if (dev->urb_intr) { + ret = usb_submit_urb(dev->urb_intr, GFP_KERNEL); + if (ret < 0) { + netif_err(dev, ifup, dev->net, + "intr submit %d\n", ret); + goto done; + } + } + + set_bit(EVENT_DEV_OPEN, &dev->flags); + + netif_start_queue(net); + + dev->link_on = false; + + lan78xx_defer_kevent(dev, EVENT_LINK_RESET); +done: + usb_autopm_put_interface(dev->intf); + +out: + return ret; +} + +static void lan78xx_terminate_urbs(struct lan78xx_net *dev) +{ + DECLARE_WAIT_QUEUE_HEAD_ONSTACK(unlink_wakeup); + DECLARE_WAITQUEUE(wait, current); + int temp; + + /* ensure there are no more active urbs */ + add_wait_queue(&unlink_wakeup, &wait); + set_current_state(TASK_UNINTERRUPTIBLE); + dev->wait = &unlink_wakeup; + temp = unlink_urbs(dev, &dev->txq) + unlink_urbs(dev, &dev->rxq); + + /* maybe wait for deletions to finish. */ + while (!skb_queue_empty(&dev->rxq) && + !skb_queue_empty(&dev->txq) && + !skb_queue_empty(&dev->done)) { + schedule_timeout(msecs_to_jiffies(UNLINK_TIMEOUT_MS)); + set_current_state(TASK_UNINTERRUPTIBLE); + netif_dbg(dev, ifdown, dev->net, + "waited for %d urb completions\n", temp); + } + set_current_state(TASK_RUNNING); + dev->wait = NULL; + remove_wait_queue(&unlink_wakeup, &wait); +} + +int lan78xx_stop(struct net_device *net) +{ + struct lan78xx_net *dev = netdev_priv(net); + + phy_stop(net->phydev); + phy_disconnect(net->phydev); + net->phydev = NULL; + + clear_bit(EVENT_DEV_OPEN, &dev->flags); + netif_stop_queue(net); + + netif_info(dev, ifdown, dev->net, + "stop stats: rx/tx %lu/%lu, errs %lu/%lu\n", + net->stats.rx_packets, net->stats.tx_packets, + net->stats.rx_errors, net->stats.tx_errors); + + lan78xx_terminate_urbs(dev); + + usb_kill_urb(dev->urb_intr); + + skb_queue_purge(&dev->rxq_pause); + + /* deferred work (task, timer, softirq) must also stop. + * can't flush_scheduled_work() until we drop rtnl (later), + * else workers could deadlock; so make workers a NOP. + */ + dev->flags = 0; + cancel_delayed_work_sync(&dev->wq); + tasklet_kill(&dev->bh); + + usb_autopm_put_interface(dev->intf); + + return 0; +} + +static int lan78xx_linearize(struct sk_buff *skb) +{ + return skb_linearize(skb); +} + +static struct sk_buff *lan78xx_tx_prep(struct lan78xx_net *dev, + struct sk_buff *skb, gfp_t flags) +{ + u32 tx_cmd_a, tx_cmd_b; + + if (skb_headroom(skb) < TX_OVERHEAD) { + struct sk_buff *skb2; + + skb2 = skb_copy_expand(skb, TX_OVERHEAD, 0, flags); + dev_kfree_skb_any(skb); + skb = skb2; + if (!skb) + return NULL; + } + + if (lan78xx_linearize(skb) < 0) + return NULL; + + tx_cmd_a = (u32)(skb->len & TX_CMD_A_LEN_MASK_) | TX_CMD_A_FCS_; + + if (skb->ip_summed == CHECKSUM_PARTIAL) + tx_cmd_a |= TX_CMD_A_IPE_ | TX_CMD_A_TPE_; + + tx_cmd_b = 0; + if (skb_is_gso(skb)) { + u16 mss = max(skb_shinfo(skb)->gso_size, TX_CMD_B_MSS_MIN_); + + tx_cmd_b = (mss << TX_CMD_B_MSS_SHIFT_) & TX_CMD_B_MSS_MASK_; + + tx_cmd_a |= TX_CMD_A_LSO_; + } + + if (skb_vlan_tag_present(skb)) { + tx_cmd_a |= TX_CMD_A_IVTG_; + tx_cmd_b |= skb_vlan_tag_get(skb) & TX_CMD_B_VTAG_MASK_; + } + + skb_push(skb, 4); + cpu_to_le32s(&tx_cmd_b); + memcpy(skb->data, &tx_cmd_b, 4); + + skb_push(skb, 4); + cpu_to_le32s(&tx_cmd_a); + memcpy(skb->data, &tx_cmd_a, 4); + + return skb; +} + +static enum skb_state defer_bh(struct lan78xx_net *dev, struct sk_buff *skb, + struct sk_buff_head *list, enum skb_state state) +{ + unsigned long flags; + enum skb_state old_state; + struct skb_data *entry = (struct skb_data *)skb->cb; + + spin_lock_irqsave(&list->lock, flags); + old_state = entry->state; + entry->state = state; + + __skb_unlink(skb, list); + spin_unlock(&list->lock); + spin_lock(&dev->done.lock); + + __skb_queue_tail(&dev->done, skb); + if (skb_queue_len(&dev->done) == 1) + tasklet_schedule(&dev->bh); + spin_unlock_irqrestore(&dev->done.lock, flags); + + return old_state; +} + +static void tx_complete(struct urb *urb) +{ + struct sk_buff *skb = (struct sk_buff *)urb->context; + struct skb_data *entry = (struct skb_data *)skb->cb; + struct lan78xx_net *dev = entry->dev; + + if (urb->status == 0) { + dev->net->stats.tx_packets++; + dev->net->stats.tx_bytes += entry->length; + } else { + dev->net->stats.tx_errors++; + + switch (urb->status) { + case -EPIPE: + lan78xx_defer_kevent(dev, EVENT_TX_HALT); + break; + + /* software-driven interface shutdown */ + case -ECONNRESET: + case -ESHUTDOWN: + break; + + case -EPROTO: + case -ETIME: + case -EILSEQ: + netif_stop_queue(dev->net); + break; + default: + netif_dbg(dev, tx_err, dev->net, + "tx err %d\n", entry->urb->status); + break; + } + } + + usb_autopm_put_interface_async(dev->intf); + + defer_bh(dev, skb, &dev->txq, tx_done); +} + +static void lan78xx_queue_skb(struct sk_buff_head *list, + struct sk_buff *newsk, enum skb_state state) +{ + struct skb_data *entry = (struct skb_data *)newsk->cb; + + __skb_queue_tail(list, newsk); + entry->state = state; +} + +netdev_tx_t lan78xx_start_xmit(struct sk_buff *skb, struct net_device *net) +{ + struct lan78xx_net *dev = netdev_priv(net); + struct sk_buff *skb2 = NULL; + + if (skb) { + skb_tx_timestamp(skb); + skb2 = lan78xx_tx_prep(dev, skb, GFP_ATOMIC); + } + + if (skb2) { + skb_queue_tail(&dev->txq_pend, skb2); + + if (skb_queue_len(&dev->txq_pend) > 10) + netif_stop_queue(net); + } else { + netif_dbg(dev, tx_err, dev->net, + "lan78xx_tx_prep return NULL\n"); + dev->net->stats.tx_errors++; + dev->net->stats.tx_dropped++; + } + + tasklet_schedule(&dev->bh); + + return NETDEV_TX_OK; +} + +int lan78xx_get_endpoints(struct lan78xx_net *dev, struct usb_interface *intf) +{ + int tmp; + struct usb_host_interface *alt = NULL; + struct usb_host_endpoint *in = NULL, *out = NULL; + struct usb_host_endpoint *status = NULL; + + for (tmp = 0; tmp < intf->num_altsetting; tmp++) { + unsigned ep; + + in = NULL; + out = NULL; + status = NULL; + alt = intf->altsetting + tmp; + + for (ep = 0; ep < alt->desc.bNumEndpoints; ep++) { + struct usb_host_endpoint *e; + int intr = 0; + + e = alt->endpoint + ep; + switch (e->desc.bmAttributes) { + case USB_ENDPOINT_XFER_INT: + if (!usb_endpoint_dir_in(&e->desc)) + continue; + intr = 1; + /* FALLTHROUGH */ + case USB_ENDPOINT_XFER_BULK: + break; + default: + continue; + } + if (usb_endpoint_dir_in(&e->desc)) { + if (!intr && !in) + in = e; + else if (intr && !status) + status = e; + } else { + if (!out) + out = e; + } + } + if (in && out) + break; + } + if (!alt || !in || !out) + return -EINVAL; + + dev->pipe_in = usb_rcvbulkpipe(dev->udev, + in->desc.bEndpointAddress & + USB_ENDPOINT_NUMBER_MASK); + dev->pipe_out = usb_sndbulkpipe(dev->udev, + out->desc.bEndpointAddress & + USB_ENDPOINT_NUMBER_MASK); + dev->ep_intr = status; + + return 0; +} + +static int lan78xx_bind(struct lan78xx_net *dev, struct usb_interface *intf) +{ + struct lan78xx_priv *pdata = NULL; + int ret; + int i; + + ret = lan78xx_get_endpoints(dev, intf); + + dev->data[0] = (unsigned long)kzalloc(sizeof(*pdata), GFP_KERNEL); + + pdata = (struct lan78xx_priv *)(dev->data[0]); + if (!pdata) { + netdev_warn(dev->net, "Unable to allocate lan78xx_priv"); + return -ENOMEM; + } + + pdata->dev = dev; + + spin_lock_init(&pdata->rfe_ctl_lock); + mutex_init(&pdata->dataport_mutex); + + INIT_WORK(&pdata->set_multicast, lan78xx_deferred_multicast_write); + + for (i = 0; i < DP_SEL_VHF_VLAN_LEN; i++) + pdata->vlan_table[i] = 0; + + INIT_WORK(&pdata->set_vlan, lan78xx_deferred_vlan_write); + + dev->net->features = 0; + + if (DEFAULT_TX_CSUM_ENABLE) + dev->net->features |= NETIF_F_HW_CSUM; + + if (DEFAULT_RX_CSUM_ENABLE) + dev->net->features |= NETIF_F_RXCSUM; + + if (DEFAULT_TSO_CSUM_ENABLE) + dev->net->features |= NETIF_F_TSO | NETIF_F_TSO6 | NETIF_F_SG; + + dev->net->hw_features = dev->net->features; + + /* Init all registers */ + ret = lan78xx_reset(dev); + + lan78xx_mdio_init(dev); + + dev->net->flags |= IFF_MULTICAST; + + pdata->wol = WAKE_MAGIC; + + return 0; +} + +static void lan78xx_unbind(struct lan78xx_net *dev, struct usb_interface *intf) +{ + struct lan78xx_priv *pdata = (struct lan78xx_priv *)(dev->data[0]); + + lan78xx_remove_mdio(dev); + + if (pdata) { + netif_dbg(dev, ifdown, dev->net, "free pdata"); + kfree(pdata); + pdata = NULL; + dev->data[0] = 0; + } +} + +static void lan78xx_rx_csum_offload(struct lan78xx_net *dev, + struct sk_buff *skb, + u32 rx_cmd_a, u32 rx_cmd_b) +{ + if (!(dev->net->features & NETIF_F_RXCSUM) || + unlikely(rx_cmd_a & RX_CMD_A_ICSM_)) { + skb->ip_summed = CHECKSUM_NONE; + } else { + skb->csum = ntohs((u16)(rx_cmd_b >> RX_CMD_B_CSUM_SHIFT_)); + skb->ip_summed = CHECKSUM_COMPLETE; + } +} + +void lan78xx_skb_return(struct lan78xx_net *dev, struct sk_buff *skb) +{ + int status; + + if (test_bit(EVENT_RX_PAUSED, &dev->flags)) { + skb_queue_tail(&dev->rxq_pause, skb); + return; + } + + skb->protocol = eth_type_trans(skb, dev->net); + dev->net->stats.rx_packets++; + dev->net->stats.rx_bytes += skb->len; + + netif_dbg(dev, rx_status, dev->net, "< rx, len %zu, type 0x%x\n", + skb->len + sizeof(struct ethhdr), skb->protocol); + memset(skb->cb, 0, sizeof(struct skb_data)); + + if (skb_defer_rx_timestamp(skb)) + return; + + status = netif_rx(skb); + if (status != NET_RX_SUCCESS) + netif_dbg(dev, rx_err, dev->net, + "netif_rx status %d\n", status); +} + +static int lan78xx_rx(struct lan78xx_net *dev, struct sk_buff *skb) +{ + if (skb->len < dev->net->hard_header_len) + return 0; + + while (skb->len > 0) { + u32 rx_cmd_a, rx_cmd_b, align_count, size; + u16 rx_cmd_c; + struct sk_buff *skb2; + unsigned char *packet; + + memcpy(&rx_cmd_a, skb->data, sizeof(rx_cmd_a)); + le32_to_cpus(&rx_cmd_a); + skb_pull(skb, sizeof(rx_cmd_a)); + + memcpy(&rx_cmd_b, skb->data, sizeof(rx_cmd_b)); + le32_to_cpus(&rx_cmd_b); + skb_pull(skb, sizeof(rx_cmd_b)); + + memcpy(&rx_cmd_c, skb->data, sizeof(rx_cmd_c)); + le16_to_cpus(&rx_cmd_c); + skb_pull(skb, sizeof(rx_cmd_c)); + + packet = skb->data; + + /* get the packet length */ + size = (rx_cmd_a & RX_CMD_A_LEN_MASK_); + align_count = (4 - ((size + RXW_PADDING) % 4)) % 4; + + if (unlikely(rx_cmd_a & RX_CMD_A_RED_)) { + netif_dbg(dev, rx_err, dev->net, + "Error rx_cmd_a=0x%08x", rx_cmd_a); + } else { + /* last frame in this batch */ + if (skb->len == size) { + lan78xx_rx_csum_offload(dev, skb, + rx_cmd_a, rx_cmd_b); + + skb_trim(skb, skb->len - 4); /* remove fcs */ + skb->truesize = size + sizeof(struct sk_buff); + + return 1; + } + + skb2 = skb_clone(skb, GFP_ATOMIC); + if (unlikely(!skb2)) { + netdev_warn(dev->net, "Error allocating skb"); + return 0; + } + + skb2->len = size; + skb2->data = packet; + skb_set_tail_pointer(skb2, size); + + lan78xx_rx_csum_offload(dev, skb2, rx_cmd_a, rx_cmd_b); + + skb_trim(skb2, skb2->len - 4); /* remove fcs */ + skb2->truesize = size + sizeof(struct sk_buff); + + lan78xx_skb_return(dev, skb2); + } + + skb_pull(skb, size); + + /* padding bytes before the next frame starts */ + if (skb->len) + skb_pull(skb, align_count); + } + + return 1; +} + +static inline void rx_process(struct lan78xx_net *dev, struct sk_buff *skb) +{ + if (!lan78xx_rx(dev, skb)) { + dev->net->stats.rx_errors++; + goto done; + } + + if (skb->len) { + lan78xx_skb_return(dev, skb); + return; + } + + netif_dbg(dev, rx_err, dev->net, "drop\n"); + dev->net->stats.rx_errors++; +done: + skb_queue_tail(&dev->done, skb); +} + +static void rx_complete(struct urb *urb); + +static int rx_submit(struct lan78xx_net *dev, struct urb *urb, gfp_t flags) +{ + struct sk_buff *skb; + struct skb_data *entry; + unsigned long lockflags; + size_t size = dev->rx_urb_size; + int ret = 0; + + skb = netdev_alloc_skb_ip_align(dev->net, size); + if (!skb) { + usb_free_urb(urb); + return -ENOMEM; + } + + entry = (struct skb_data *)skb->cb; + entry->urb = urb; + entry->dev = dev; + entry->length = 0; + + usb_fill_bulk_urb(urb, dev->udev, dev->pipe_in, + skb->data, size, rx_complete, skb); + + spin_lock_irqsave(&dev->rxq.lock, lockflags); + + if (netif_device_present(dev->net) && + netif_running(dev->net) && + !test_bit(EVENT_RX_HALT, &dev->flags) && + !test_bit(EVENT_DEV_ASLEEP, &dev->flags)) { + ret = usb_submit_urb(urb, GFP_ATOMIC); + switch (ret) { + case 0: + lan78xx_queue_skb(&dev->rxq, skb, rx_start); + break; + case -EPIPE: + lan78xx_defer_kevent(dev, EVENT_RX_HALT); + break; + case -ENODEV: + netif_dbg(dev, ifdown, dev->net, "device gone\n"); + netif_device_detach(dev->net); + break; + case -EHOSTUNREACH: + ret = -ENOLINK; + break; + default: + netif_dbg(dev, rx_err, dev->net, + "rx submit, %d\n", ret); + tasklet_schedule(&dev->bh); + } + } else { + netif_dbg(dev, ifdown, dev->net, "rx: stopped\n"); + ret = -ENOLINK; + } + spin_unlock_irqrestore(&dev->rxq.lock, lockflags); + if (ret) { + dev_kfree_skb_any(skb); + usb_free_urb(urb); + } + return ret; +} + +static void rx_complete(struct urb *urb) +{ + struct sk_buff *skb = (struct sk_buff *)urb->context; + struct skb_data *entry = (struct skb_data *)skb->cb; + struct lan78xx_net *dev = entry->dev; + int urb_status = urb->status; + enum skb_state state; + + skb_put(skb, urb->actual_length); + state = rx_done; + entry->urb = NULL; + + switch (urb_status) { + case 0: + if (skb->len < dev->net->hard_header_len) { + state = rx_cleanup; + dev->net->stats.rx_errors++; + dev->net->stats.rx_length_errors++; + netif_dbg(dev, rx_err, dev->net, + "rx length %d\n", skb->len); + } + usb_mark_last_busy(dev->udev); + break; + case -EPIPE: + dev->net->stats.rx_errors++; + lan78xx_defer_kevent(dev, EVENT_RX_HALT); + /* FALLTHROUGH */ + case -ECONNRESET: /* async unlink */ + case -ESHUTDOWN: /* hardware gone */ + netif_dbg(dev, ifdown, dev->net, + "rx shutdown, code %d\n", urb_status); + state = rx_cleanup; + entry->urb = urb; + urb = NULL; + break; + case -EPROTO: + case -ETIME: + case -EILSEQ: + dev->net->stats.rx_errors++; + state = rx_cleanup; + entry->urb = urb; + urb = NULL; + break; + + /* data overrun ... flush fifo? */ + case -EOVERFLOW: + dev->net->stats.rx_over_errors++; + /* FALLTHROUGH */ + + default: + state = rx_cleanup; + dev->net->stats.rx_errors++; + netif_dbg(dev, rx_err, dev->net, "rx status %d\n", urb_status); + break; + } + + state = defer_bh(dev, skb, &dev->rxq, state); + + if (urb) { + if (netif_running(dev->net) && + !test_bit(EVENT_RX_HALT, &dev->flags) && + state != unlink_start) { + rx_submit(dev, urb, GFP_ATOMIC); + return; + } + usb_free_urb(urb); + } + netif_dbg(dev, rx_err, dev->net, "no read resubmitted\n"); +} + +static void lan78xx_tx_bh(struct lan78xx_net *dev) +{ + int length; + struct urb *urb = NULL; + struct skb_data *entry; + unsigned long flags; + struct sk_buff_head *tqp = &dev->txq_pend; + struct sk_buff *skb, *skb2; + int ret; + int count, pos; + int skb_totallen, pkt_cnt; + + skb_totallen = 0; + pkt_cnt = 0; + for (skb = tqp->next; pkt_cnt < tqp->qlen; skb = skb->next) { + if (skb_is_gso(skb)) { + if (pkt_cnt) { + /* handle previous packets first */ + break; + } + length = skb->len; + skb2 = skb_dequeue(tqp); + goto gso_skb; + } + + if ((skb_totallen + skb->len) > MAX_SINGLE_PACKET_SIZE) + break; + skb_totallen = skb->len + roundup(skb_totallen, sizeof(u32)); + pkt_cnt++; + } + + /* copy to a single skb */ + skb = alloc_skb(skb_totallen, GFP_ATOMIC); + if (!skb) + goto drop; + + skb_put(skb, skb_totallen); + + for (count = pos = 0; count < pkt_cnt; count++) { + skb2 = skb_dequeue(tqp); + if (skb2) { + memcpy(skb->data + pos, skb2->data, skb2->len); + pos += roundup(skb2->len, sizeof(u32)); + dev_kfree_skb(skb2); + } + } + + length = skb_totallen; + +gso_skb: + urb = usb_alloc_urb(0, GFP_ATOMIC); + if (!urb) { + netif_dbg(dev, tx_err, dev->net, "no urb\n"); + goto drop; + } + + entry = (struct skb_data *)skb->cb; + entry->urb = urb; + entry->dev = dev; + entry->length = length; + + spin_lock_irqsave(&dev->txq.lock, flags); + ret = usb_autopm_get_interface_async(dev->intf); + if (ret < 0) { + spin_unlock_irqrestore(&dev->txq.lock, flags); + goto drop; + } + + usb_fill_bulk_urb(urb, dev->udev, dev->pipe_out, + skb->data, skb->len, tx_complete, skb); + + if (length % dev->maxpacket == 0) { + /* send USB_ZERO_PACKET */ + urb->transfer_flags |= URB_ZERO_PACKET; + } + +#ifdef CONFIG_PM + /* if this triggers the device is still a sleep */ + if (test_bit(EVENT_DEV_ASLEEP, &dev->flags)) { + /* transmission will be done in resume */ + usb_anchor_urb(urb, &dev->deferred); + /* no use to process more packets */ + netif_stop_queue(dev->net); + usb_put_urb(urb); + spin_unlock_irqrestore(&dev->txq.lock, flags); + netdev_dbg(dev->net, "Delaying transmission for resumption\n"); + return; + } +#endif + + ret = usb_submit_urb(urb, GFP_ATOMIC); + switch (ret) { + case 0: + dev->net->trans_start = jiffies; + lan78xx_queue_skb(&dev->txq, skb, tx_start); + if (skb_queue_len(&dev->txq) >= dev->tx_qlen) + netif_stop_queue(dev->net); + break; + case -EPIPE: + netif_stop_queue(dev->net); + lan78xx_defer_kevent(dev, EVENT_TX_HALT); + usb_autopm_put_interface_async(dev->intf); + break; + default: + usb_autopm_put_interface_async(dev->intf); + netif_dbg(dev, tx_err, dev->net, + "tx: submit urb err %d\n", ret); + break; + } + + spin_unlock_irqrestore(&dev->txq.lock, flags); + + if (ret) { + netif_dbg(dev, tx_err, dev->net, "drop, code %d\n", ret); +drop: + dev->net->stats.tx_dropped++; + if (skb) + dev_kfree_skb_any(skb); + usb_free_urb(urb); + } else + netif_dbg(dev, tx_queued, dev->net, + "> tx, len %d, type 0x%x\n", length, skb->protocol); +} + +static void lan78xx_rx_bh(struct lan78xx_net *dev) +{ + struct urb *urb; + int i; + + if (skb_queue_len(&dev->rxq) < dev->rx_qlen) { + for (i = 0; i < 10; i++) { + if (skb_queue_len(&dev->rxq) >= dev->rx_qlen) + break; + urb = usb_alloc_urb(0, GFP_ATOMIC); + if (urb) + if (rx_submit(dev, urb, GFP_ATOMIC) == -ENOLINK) + return; + } + + if (skb_queue_len(&dev->rxq) < dev->rx_qlen) + tasklet_schedule(&dev->bh); + } + if (skb_queue_len(&dev->txq) < dev->tx_qlen) + netif_wake_queue(dev->net); +} + +static void lan78xx_bh(unsigned long param) +{ + struct lan78xx_net *dev = (struct lan78xx_net *)param; + struct sk_buff *skb; + struct skb_data *entry; + + while ((skb = skb_dequeue(&dev->done))) { + entry = (struct skb_data *)(skb->cb); + switch (entry->state) { + case rx_done: + entry->state = rx_cleanup; + rx_process(dev, skb); + continue; + case tx_done: + usb_free_urb(entry->urb); + dev_kfree_skb(skb); + continue; + case rx_cleanup: + usb_free_urb(entry->urb); + dev_kfree_skb(skb); + continue; + default: + netdev_dbg(dev->net, "skb state %d\n", entry->state); + return; + } + } + + if (netif_device_present(dev->net) && netif_running(dev->net)) { + if (!skb_queue_empty(&dev->txq_pend)) + lan78xx_tx_bh(dev); + + if (!timer_pending(&dev->delay) && + !test_bit(EVENT_RX_HALT, &dev->flags)) + lan78xx_rx_bh(dev); + } +} + +static void lan78xx_delayedwork(struct work_struct *work) +{ + int status; + struct lan78xx_net *dev; + + dev = container_of(work, struct lan78xx_net, wq.work); + + if (test_bit(EVENT_TX_HALT, &dev->flags)) { + unlink_urbs(dev, &dev->txq); + status = usb_autopm_get_interface(dev->intf); + if (status < 0) + goto fail_pipe; + status = usb_clear_halt(dev->udev, dev->pipe_out); + usb_autopm_put_interface(dev->intf); + if (status < 0 && + status != -EPIPE && + status != -ESHUTDOWN) { + if (netif_msg_tx_err(dev)) +fail_pipe: + netdev_err(dev->net, + "can't clear tx halt, status %d\n", + status); + } else { + clear_bit(EVENT_TX_HALT, &dev->flags); + if (status != -ESHUTDOWN) + netif_wake_queue(dev->net); + } + } + if (test_bit(EVENT_RX_HALT, &dev->flags)) { + unlink_urbs(dev, &dev->rxq); + status = usb_autopm_get_interface(dev->intf); + if (status < 0) + goto fail_halt; + status = usb_clear_halt(dev->udev, dev->pipe_in); + usb_autopm_put_interface(dev->intf); + if (status < 0 && + status != -EPIPE && + status != -ESHUTDOWN) { + if (netif_msg_rx_err(dev)) +fail_halt: + netdev_err(dev->net, + "can't clear rx halt, status %d\n", + status); + } else { + clear_bit(EVENT_RX_HALT, &dev->flags); + tasklet_schedule(&dev->bh); + } + } + + if (test_bit(EVENT_LINK_RESET, &dev->flags)) { + int ret = 0; + + clear_bit(EVENT_LINK_RESET, &dev->flags); + status = usb_autopm_get_interface(dev->intf); + if (status < 0) + goto skip_reset; + if (lan78xx_link_reset(dev) < 0) { + usb_autopm_put_interface(dev->intf); +skip_reset: + netdev_info(dev->net, "link reset failed (%d)\n", + ret); + } else { + usb_autopm_put_interface(dev->intf); + } + } +} + +static void intr_complete(struct urb *urb) +{ + struct lan78xx_net *dev = urb->context; + int status = urb->status; + + switch (status) { + /* success */ + case 0: + lan78xx_status(dev, urb); + break; + + /* software-driven interface shutdown */ + case -ENOENT: /* urb killed */ + case -ESHUTDOWN: /* hardware gone */ + netif_dbg(dev, ifdown, dev->net, + "intr shutdown, code %d\n", status); + return; + + /* NOTE: not throttling like RX/TX, since this endpoint + * already polls infrequently + */ + default: + netdev_dbg(dev->net, "intr status %d\n", status); + break; + } + + if (!netif_running(dev->net)) + return; + + memset(urb->transfer_buffer, 0, urb->transfer_buffer_length); + status = usb_submit_urb(urb, GFP_ATOMIC); + if (status != 0) + netif_err(dev, timer, dev->net, + "intr resubmit --> %d\n", status); +} + +static void lan78xx_disconnect(struct usb_interface *intf) +{ + struct lan78xx_net *dev; + struct usb_device *udev; + struct net_device *net; + + dev = usb_get_intfdata(intf); + usb_set_intfdata(intf, NULL); + if (!dev) + return; + + udev = interface_to_usbdev(intf); + + net = dev->net; + unregister_netdev(net); + + cancel_delayed_work_sync(&dev->wq); + + usb_scuttle_anchored_urbs(&dev->deferred); + + lan78xx_unbind(dev, intf); + + usb_kill_urb(dev->urb_intr); + usb_free_urb(dev->urb_intr); + + free_netdev(net); + usb_put_dev(udev); +} + +void lan78xx_tx_timeout(struct net_device *net) +{ + struct lan78xx_net *dev = netdev_priv(net); + + unlink_urbs(dev, &dev->txq); + tasklet_schedule(&dev->bh); +} + +static const struct net_device_ops lan78xx_netdev_ops = { + .ndo_open = lan78xx_open, + .ndo_stop = lan78xx_stop, + .ndo_start_xmit = lan78xx_start_xmit, + .ndo_tx_timeout = lan78xx_tx_timeout, + .ndo_change_mtu = lan78xx_change_mtu, + .ndo_set_mac_address = lan78xx_set_mac_addr, + .ndo_validate_addr = eth_validate_addr, + .ndo_do_ioctl = lan78xx_ioctl, + .ndo_set_rx_mode = lan78xx_set_multicast, + .ndo_set_features = lan78xx_set_features, + .ndo_vlan_rx_add_vid = lan78xx_vlan_rx_add_vid, + .ndo_vlan_rx_kill_vid = lan78xx_vlan_rx_kill_vid, +}; + +static int lan78xx_probe(struct usb_interface *intf, + const struct usb_device_id *id) +{ + struct lan78xx_net *dev; + struct net_device *netdev; + struct usb_device *udev; + int ret; + unsigned maxp; + unsigned period; + u8 *buf = NULL; + + udev = interface_to_usbdev(intf); + udev = usb_get_dev(udev); + + ret = -ENOMEM; + netdev = alloc_etherdev(sizeof(struct lan78xx_net)); + if (!netdev) { + dev_err(&intf->dev, "Error: OOM\n"); + goto out1; + } + + /* netdev_printk() needs this */ + SET_NETDEV_DEV(netdev, &intf->dev); + + dev = netdev_priv(netdev); + dev->udev = udev; + dev->intf = intf; + dev->net = netdev; + dev->msg_enable = netif_msg_init(msg_level, NETIF_MSG_DRV + | NETIF_MSG_PROBE | NETIF_MSG_LINK); + + skb_queue_head_init(&dev->rxq); + skb_queue_head_init(&dev->txq); + skb_queue_head_init(&dev->done); + skb_queue_head_init(&dev->rxq_pause); + skb_queue_head_init(&dev->txq_pend); + mutex_init(&dev->phy_mutex); + + tasklet_init(&dev->bh, lan78xx_bh, (unsigned long)dev); + INIT_DELAYED_WORK(&dev->wq, lan78xx_delayedwork); + init_usb_anchor(&dev->deferred); + + netdev->netdev_ops = &lan78xx_netdev_ops; + netdev->watchdog_timeo = TX_TIMEOUT_JIFFIES; + netdev->ethtool_ops = &lan78xx_ethtool_ops; + + ret = lan78xx_bind(dev, intf); + if (ret < 0) + goto out2; + strcpy(netdev->name, "eth%d"); + + if (netdev->mtu > (dev->hard_mtu - netdev->hard_header_len)) + netdev->mtu = dev->hard_mtu - netdev->hard_header_len; + + dev->ep_blkin = (intf->cur_altsetting)->endpoint + 0; + dev->ep_blkout = (intf->cur_altsetting)->endpoint + 1; + dev->ep_intr = (intf->cur_altsetting)->endpoint + 2; + + dev->pipe_in = usb_rcvbulkpipe(udev, BULK_IN_PIPE); + dev->pipe_out = usb_sndbulkpipe(udev, BULK_OUT_PIPE); + + dev->pipe_intr = usb_rcvintpipe(dev->udev, + dev->ep_intr->desc.bEndpointAddress & + USB_ENDPOINT_NUMBER_MASK); + period = dev->ep_intr->desc.bInterval; + + maxp = usb_maxpacket(dev->udev, dev->pipe_intr, 0); + buf = kmalloc(maxp, GFP_KERNEL); + if (buf) { + dev->urb_intr = usb_alloc_urb(0, GFP_KERNEL); + if (!dev->urb_intr) { + kfree(buf); + goto out3; + } else { + usb_fill_int_urb(dev->urb_intr, dev->udev, + dev->pipe_intr, buf, maxp, + intr_complete, dev, period); + } + } + + dev->maxpacket = usb_maxpacket(dev->udev, dev->pipe_out, 1); + + /* driver requires remote-wakeup capability during autosuspend. */ + intf->needs_remote_wakeup = 1; + + ret = register_netdev(netdev); + if (ret != 0) { + netif_err(dev, probe, netdev, "couldn't register the device\n"); + goto out2; + } + + usb_set_intfdata(intf, dev); + + ret = device_set_wakeup_enable(&udev->dev, true); + + /* Default delay of 2sec has more overhead than advantage. + * Set to 10sec as default. + */ + pm_runtime_set_autosuspend_delay(&udev->dev, + DEFAULT_AUTOSUSPEND_DELAY); + + return 0; + +out3: + lan78xx_unbind(dev, intf); +out2: + free_netdev(netdev); +out1: + usb_put_dev(udev); + + return ret; +} + +static u16 lan78xx_wakeframe_crc16(const u8 *buf, int len) +{ + const u16 crc16poly = 0x8005; + int i; + u16 bit, crc, msb; + u8 data; + + crc = 0xFFFF; + for (i = 0; i < len; i++) { + data = *buf++; + for (bit = 0; bit < 8; bit++) { + msb = crc >> 15; + crc <<= 1; + + if (msb ^ (u16)(data & 1)) { + crc ^= crc16poly; + crc |= (u16)0x0001U; + } + data >>= 1; + } + } + + return crc; +} + +static int lan78xx_set_suspend(struct lan78xx_net *dev, u32 wol) +{ + u32 buf; + int ret; + int mask_index; + u16 crc; + u32 temp_wucsr; + u32 temp_pmt_ctl; + const u8 ipv4_multicast[3] = { 0x01, 0x00, 0x5E }; + const u8 ipv6_multicast[3] = { 0x33, 0x33 }; + const u8 arp_type[2] = { 0x08, 0x06 }; + + ret = lan78xx_read_reg(dev, MAC_TX, &buf); + buf &= ~MAC_TX_TXEN_; + ret = lan78xx_write_reg(dev, MAC_TX, buf); + ret = lan78xx_read_reg(dev, MAC_RX, &buf); + buf &= ~MAC_RX_RXEN_; + ret = lan78xx_write_reg(dev, MAC_RX, buf); + + ret = lan78xx_write_reg(dev, WUCSR, 0); + ret = lan78xx_write_reg(dev, WUCSR2, 0); + ret = lan78xx_write_reg(dev, WK_SRC, 0xFFF1FF1FUL); + + temp_wucsr = 0; + + temp_pmt_ctl = 0; + ret = lan78xx_read_reg(dev, PMT_CTL, &temp_pmt_ctl); + temp_pmt_ctl &= ~PMT_CTL_RES_CLR_WKP_EN_; + temp_pmt_ctl |= PMT_CTL_RES_CLR_WKP_STS_; + + for (mask_index = 0; mask_index < NUM_OF_WUF_CFG; mask_index++) + ret = lan78xx_write_reg(dev, WUF_CFG(mask_index), 0); + + mask_index = 0; + if (wol & WAKE_PHY) { + temp_pmt_ctl |= PMT_CTL_PHY_WAKE_EN_; + + temp_pmt_ctl |= PMT_CTL_WOL_EN_; + temp_pmt_ctl &= ~PMT_CTL_SUS_MODE_MASK_; + temp_pmt_ctl |= PMT_CTL_SUS_MODE_0_; + } + if (wol & WAKE_MAGIC) { + temp_wucsr |= WUCSR_MPEN_; + + temp_pmt_ctl |= PMT_CTL_WOL_EN_; + temp_pmt_ctl &= ~PMT_CTL_SUS_MODE_MASK_; + temp_pmt_ctl |= PMT_CTL_SUS_MODE_3_; + } + if (wol & WAKE_BCAST) { + temp_wucsr |= WUCSR_BCST_EN_; + + temp_pmt_ctl |= PMT_CTL_WOL_EN_; + temp_pmt_ctl &= ~PMT_CTL_SUS_MODE_MASK_; + temp_pmt_ctl |= PMT_CTL_SUS_MODE_0_; + } + if (wol & WAKE_MCAST) { + temp_wucsr |= WUCSR_WAKE_EN_; + + /* set WUF_CFG & WUF_MASK for IPv4 Multicast */ + crc = lan78xx_wakeframe_crc16(ipv4_multicast, 3); + ret = lan78xx_write_reg(dev, WUF_CFG(mask_index), + WUF_CFGX_EN_ | + WUF_CFGX_TYPE_MCAST_ | + (0 << WUF_CFGX_OFFSET_SHIFT_) | + (crc & WUF_CFGX_CRC16_MASK_)); + + ret = lan78xx_write_reg(dev, WUF_MASK0(mask_index), 7); + ret = lan78xx_write_reg(dev, WUF_MASK1(mask_index), 0); + ret = lan78xx_write_reg(dev, WUF_MASK2(mask_index), 0); + ret = lan78xx_write_reg(dev, WUF_MASK3(mask_index), 0); + mask_index++; + + /* for IPv6 Multicast */ + crc = lan78xx_wakeframe_crc16(ipv6_multicast, 2); + ret = lan78xx_write_reg(dev, WUF_CFG(mask_index), + WUF_CFGX_EN_ | + WUF_CFGX_TYPE_MCAST_ | + (0 << WUF_CFGX_OFFSET_SHIFT_) | + (crc & WUF_CFGX_CRC16_MASK_)); + + ret = lan78xx_write_reg(dev, WUF_MASK0(mask_index), 3); + ret = lan78xx_write_reg(dev, WUF_MASK1(mask_index), 0); + ret = lan78xx_write_reg(dev, WUF_MASK2(mask_index), 0); + ret = lan78xx_write_reg(dev, WUF_MASK3(mask_index), 0); + mask_index++; + + temp_pmt_ctl |= PMT_CTL_WOL_EN_; + temp_pmt_ctl &= ~PMT_CTL_SUS_MODE_MASK_; + temp_pmt_ctl |= PMT_CTL_SUS_MODE_0_; + } + if (wol & WAKE_UCAST) { + temp_wucsr |= WUCSR_PFDA_EN_; + + temp_pmt_ctl |= PMT_CTL_WOL_EN_; + temp_pmt_ctl &= ~PMT_CTL_SUS_MODE_MASK_; + temp_pmt_ctl |= PMT_CTL_SUS_MODE_0_; + } + if (wol & WAKE_ARP) { + temp_wucsr |= WUCSR_WAKE_EN_; + + /* set WUF_CFG & WUF_MASK + * for packettype (offset 12,13) = ARP (0x0806) + */ + crc = lan78xx_wakeframe_crc16(arp_type, 2); + ret = lan78xx_write_reg(dev, WUF_CFG(mask_index), + WUF_CFGX_EN_ | + WUF_CFGX_TYPE_ALL_ | + (0 << WUF_CFGX_OFFSET_SHIFT_) | + (crc & WUF_CFGX_CRC16_MASK_)); + + ret = lan78xx_write_reg(dev, WUF_MASK0(mask_index), 0x3000); + ret = lan78xx_write_reg(dev, WUF_MASK1(mask_index), 0); + ret = lan78xx_write_reg(dev, WUF_MASK2(mask_index), 0); + ret = lan78xx_write_reg(dev, WUF_MASK3(mask_index), 0); + mask_index++; + + temp_pmt_ctl |= PMT_CTL_WOL_EN_; + temp_pmt_ctl &= ~PMT_CTL_SUS_MODE_MASK_; + temp_pmt_ctl |= PMT_CTL_SUS_MODE_0_; + } + + ret = lan78xx_write_reg(dev, WUCSR, temp_wucsr); + + /* when multiple WOL bits are set */ + if (hweight_long((unsigned long)wol) > 1) { + temp_pmt_ctl |= PMT_CTL_WOL_EN_; + temp_pmt_ctl &= ~PMT_CTL_SUS_MODE_MASK_; + temp_pmt_ctl |= PMT_CTL_SUS_MODE_0_; + } + ret = lan78xx_write_reg(dev, PMT_CTL, temp_pmt_ctl); + + /* clear WUPS */ + ret = lan78xx_read_reg(dev, PMT_CTL, &buf); + buf |= PMT_CTL_WUPS_MASK_; + ret = lan78xx_write_reg(dev, PMT_CTL, buf); + + ret = lan78xx_read_reg(dev, MAC_RX, &buf); + buf |= MAC_RX_RXEN_; + ret = lan78xx_write_reg(dev, MAC_RX, buf); + + return 0; +} + +int lan78xx_suspend(struct usb_interface *intf, pm_message_t message) +{ + struct lan78xx_net *dev = usb_get_intfdata(intf); + struct lan78xx_priv *pdata = (struct lan78xx_priv *)(dev->data[0]); + u32 buf; + int ret; + int event; + + event = message.event; + + if (!dev->suspend_count++) { + spin_lock_irq(&dev->txq.lock); + /* don't autosuspend while transmitting */ + if ((skb_queue_len(&dev->txq) || + skb_queue_len(&dev->txq_pend)) && + PMSG_IS_AUTO(message)) { + spin_unlock_irq(&dev->txq.lock); + ret = -EBUSY; + goto out; + } else { + set_bit(EVENT_DEV_ASLEEP, &dev->flags); + spin_unlock_irq(&dev->txq.lock); + } + + /* stop TX & RX */ + ret = lan78xx_read_reg(dev, MAC_TX, &buf); + buf &= ~MAC_TX_TXEN_; + ret = lan78xx_write_reg(dev, MAC_TX, buf); + ret = lan78xx_read_reg(dev, MAC_RX, &buf); + buf &= ~MAC_RX_RXEN_; + ret = lan78xx_write_reg(dev, MAC_RX, buf); + + /* empty out the rx and queues */ + netif_device_detach(dev->net); + lan78xx_terminate_urbs(dev); + usb_kill_urb(dev->urb_intr); + + /* reattach */ + netif_device_attach(dev->net); + } + + if (test_bit(EVENT_DEV_ASLEEP, &dev->flags)) { + if (PMSG_IS_AUTO(message)) { + /* auto suspend (selective suspend) */ + ret = lan78xx_read_reg(dev, MAC_TX, &buf); + buf &= ~MAC_TX_TXEN_; + ret = lan78xx_write_reg(dev, MAC_TX, buf); + ret = lan78xx_read_reg(dev, MAC_RX, &buf); + buf &= ~MAC_RX_RXEN_; + ret = lan78xx_write_reg(dev, MAC_RX, buf); + + ret = lan78xx_write_reg(dev, WUCSR, 0); + ret = lan78xx_write_reg(dev, WUCSR2, 0); + ret = lan78xx_write_reg(dev, WK_SRC, 0xFFF1FF1FUL); + + /* set goodframe wakeup */ + ret = lan78xx_read_reg(dev, WUCSR, &buf); + + buf |= WUCSR_RFE_WAKE_EN_; + buf |= WUCSR_STORE_WAKE_; + + ret = lan78xx_write_reg(dev, WUCSR, buf); + + ret = lan78xx_read_reg(dev, PMT_CTL, &buf); + + buf &= ~PMT_CTL_RES_CLR_WKP_EN_; + buf |= PMT_CTL_RES_CLR_WKP_STS_; + + buf |= PMT_CTL_PHY_WAKE_EN_; + buf |= PMT_CTL_WOL_EN_; + buf &= ~PMT_CTL_SUS_MODE_MASK_; + buf |= PMT_CTL_SUS_MODE_3_; + + ret = lan78xx_write_reg(dev, PMT_CTL, buf); + + ret = lan78xx_read_reg(dev, PMT_CTL, &buf); + + buf |= PMT_CTL_WUPS_MASK_; + + ret = lan78xx_write_reg(dev, PMT_CTL, buf); + + ret = lan78xx_read_reg(dev, MAC_RX, &buf); + buf |= MAC_RX_RXEN_; + ret = lan78xx_write_reg(dev, MAC_RX, buf); + } else { + lan78xx_set_suspend(dev, pdata->wol); + } + } + + ret = 0; +out: + return ret; +} + +int lan78xx_resume(struct usb_interface *intf) +{ + struct lan78xx_net *dev = usb_get_intfdata(intf); + struct sk_buff *skb; + struct urb *res; + int ret; + u32 buf; + + if (!--dev->suspend_count) { + /* resume interrupt URBs */ + if (dev->urb_intr && test_bit(EVENT_DEV_OPEN, &dev->flags)) + usb_submit_urb(dev->urb_intr, GFP_NOIO); + + spin_lock_irq(&dev->txq.lock); + while ((res = usb_get_from_anchor(&dev->deferred))) { + skb = (struct sk_buff *)res->context; + ret = usb_submit_urb(res, GFP_ATOMIC); + if (ret < 0) { + dev_kfree_skb_any(skb); + usb_free_urb(res); + usb_autopm_put_interface_async(dev->intf); + } else { + dev->net->trans_start = jiffies; + lan78xx_queue_skb(&dev->txq, skb, tx_start); + } + } + + clear_bit(EVENT_DEV_ASLEEP, &dev->flags); + spin_unlock_irq(&dev->txq.lock); + + if (test_bit(EVENT_DEV_OPEN, &dev->flags)) { + if (!(skb_queue_len(&dev->txq) >= dev->tx_qlen)) + netif_start_queue(dev->net); + tasklet_schedule(&dev->bh); + } + } + + ret = lan78xx_write_reg(dev, WUCSR2, 0); + ret = lan78xx_write_reg(dev, WUCSR, 0); + ret = lan78xx_write_reg(dev, WK_SRC, 0xFFF1FF1FUL); + + ret = lan78xx_write_reg(dev, WUCSR2, WUCSR2_NS_RCD_ | + WUCSR2_ARP_RCD_ | + WUCSR2_IPV6_TCPSYN_RCD_ | + WUCSR2_IPV4_TCPSYN_RCD_); + + ret = lan78xx_write_reg(dev, WUCSR, WUCSR_EEE_TX_WAKE_ | + WUCSR_EEE_RX_WAKE_ | + WUCSR_PFDA_FR_ | + WUCSR_RFE_WAKE_FR_ | + WUCSR_WUFR_ | + WUCSR_MPR_ | + WUCSR_BCST_FR_); + + ret = lan78xx_read_reg(dev, MAC_TX, &buf); + buf |= MAC_TX_TXEN_; + ret = lan78xx_write_reg(dev, MAC_TX, buf); + + return 0; +} + +int lan78xx_reset_resume(struct usb_interface *intf) +{ + struct lan78xx_net *dev = usb_get_intfdata(intf); + + lan78xx_reset(dev); + + lan78xx_phy_init(dev); + + return lan78xx_resume(intf); +} + +static const struct usb_device_id products[] = { + { + /* LAN7800 USB Gigabit Ethernet Device */ + USB_DEVICE(LAN78XX_USB_VENDOR_ID, LAN7800_USB_PRODUCT_ID), + }, + { + /* LAN7850 USB Gigabit Ethernet Device */ + USB_DEVICE(LAN78XX_USB_VENDOR_ID, LAN7850_USB_PRODUCT_ID), + }, + {}, +}; +MODULE_DEVICE_TABLE(usb, products); + +static struct usb_driver lan78xx_driver = { + .name = DRIVER_NAME, + .id_table = products, + .probe = lan78xx_probe, + .disconnect = lan78xx_disconnect, + .suspend = lan78xx_suspend, + .resume = lan78xx_resume, + .reset_resume = lan78xx_reset_resume, + .supports_autosuspend = 1, + .disable_hub_initiated_lpm = 1, +}; + +module_usb_driver(lan78xx_driver); + +MODULE_AUTHOR(DRIVER_AUTHOR); +MODULE_DESCRIPTION(DRIVER_DESC); +MODULE_LICENSE("GPL"); diff --git a/kernel/drivers/net/usb/lan78xx.h b/kernel/drivers/net/usb/lan78xx.h new file mode 100644 index 000000000..a93fb653e --- /dev/null +++ b/kernel/drivers/net/usb/lan78xx.h @@ -0,0 +1,876 @@ +/* + * Copyright (C) 2015 Microchip Technology + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see <http://www.gnu.org/licenses/>. + */ +#ifndef _LAN78XX_H +#define _LAN78XX_H + +/* USB Vendor Requests */ +#define USB_VENDOR_REQUEST_WRITE_REGISTER 0xA0 +#define USB_VENDOR_REQUEST_READ_REGISTER 0xA1 +#define USB_VENDOR_REQUEST_GET_STATS 0xA2 + +/* Interrupt Endpoint status word bitfields */ +#define INT_ENP_EEE_START_TX_LPI_INT BIT(26) +#define INT_ENP_EEE_STOP_TX_LPI_INT BIT(25) +#define INT_ENP_EEE_RX_LPI_INT BIT(24) +#define INT_ENP_RDFO_INT BIT(22) +#define INT_ENP_TXE_INT BIT(21) +#define INT_ENP_TX_DIS_INT BIT(19) +#define INT_ENP_RX_DIS_INT BIT(18) +#define INT_ENP_PHY_INT BIT(17) +#define INT_ENP_DP_INT BIT(16) +#define INT_ENP_MAC_ERR_INT BIT(15) +#define INT_ENP_TDFU_INT BIT(14) +#define INT_ENP_TDFO_INT BIT(13) +#define INT_ENP_UTX_FP_INT BIT(12) + +#define TX_PKT_ALIGNMENT 4 +#define RX_PKT_ALIGNMENT 4 + +/* Tx Command A */ +#define TX_CMD_A_IGE_ (0x20000000) +#define TX_CMD_A_ICE_ (0x10000000) +#define TX_CMD_A_LSO_ (0x08000000) +#define TX_CMD_A_IPE_ (0x04000000) +#define TX_CMD_A_TPE_ (0x02000000) +#define TX_CMD_A_IVTG_ (0x01000000) +#define TX_CMD_A_RVTG_ (0x00800000) +#define TX_CMD_A_FCS_ (0x00400000) +#define TX_CMD_A_LEN_MASK_ (0x000FFFFF) + +/* Tx Command B */ +#define TX_CMD_B_MSS_SHIFT_ (16) +#define TX_CMD_B_MSS_MASK_ (0x3FFF0000) +#define TX_CMD_B_MSS_MIN_ ((unsigned short)8) +#define TX_CMD_B_VTAG_MASK_ (0x0000FFFF) +#define TX_CMD_B_VTAG_PRI_MASK_ (0x0000E000) +#define TX_CMD_B_VTAG_CFI_MASK_ (0x00001000) +#define TX_CMD_B_VTAG_VID_MASK_ (0x00000FFF) + +/* Rx Command A */ +#define RX_CMD_A_ICE_ (0x80000000) +#define RX_CMD_A_TCE_ (0x40000000) +#define RX_CMD_A_CSE_MASK_ (0xC0000000) +#define RX_CMD_A_IPV_ (0x20000000) +#define RX_CMD_A_PID_MASK_ (0x18000000) +#define RX_CMD_A_PID_NONE_IP_ (0x00000000) +#define RX_CMD_A_PID_TCP_IP_ (0x08000000) +#define RX_CMD_A_PID_UDP_IP_ (0x10000000) +#define RX_CMD_A_PID_IP_ (0x18000000) +#define RX_CMD_A_PFF_ (0x04000000) +#define RX_CMD_A_BAM_ (0x02000000) +#define RX_CMD_A_MAM_ (0x01000000) +#define RX_CMD_A_FVTG_ (0x00800000) +#define RX_CMD_A_RED_ (0x00400000) +#define RX_CMD_A_RX_ERRS_MASK_ (0xC03F0000) +#define RX_CMD_A_RWT_ (0x00200000) +#define RX_CMD_A_RUNT_ (0x00100000) +#define RX_CMD_A_LONG_ (0x00080000) +#define RX_CMD_A_RXE_ (0x00040000) +#define RX_CMD_A_DRB_ (0x00020000) +#define RX_CMD_A_FCS_ (0x00010000) +#define RX_CMD_A_UAM_ (0x00008000) +#define RX_CMD_A_ICSM_ (0x00004000) +#define RX_CMD_A_LEN_MASK_ (0x00003FFF) + +/* Rx Command B */ +#define RX_CMD_B_CSUM_SHIFT_ (16) +#define RX_CMD_B_CSUM_MASK_ (0xFFFF0000) +#define RX_CMD_B_VTAG_MASK_ (0x0000FFFF) +#define RX_CMD_B_VTAG_PRI_MASK_ (0x0000E000) +#define RX_CMD_B_VTAG_CFI_MASK_ (0x00001000) +#define RX_CMD_B_VTAG_VID_MASK_ (0x00000FFF) + +/* Rx Command C */ +#define RX_CMD_C_WAKE_SHIFT_ (15) +#define RX_CMD_C_WAKE_ (0x8000) +#define RX_CMD_C_REF_FAIL_SHIFT_ (14) +#define RX_CMD_C_REF_FAIL_ (0x4000) + +/* SCSRs */ +#define NUMBER_OF_REGS (193) + +#define ID_REV (0x00) +#define ID_REV_CHIP_ID_MASK_ (0xFFFF0000) +#define ID_REV_CHIP_REV_MASK_ (0x0000FFFF) +#define ID_REV_CHIP_ID_7800_ (0x7800) + +#define FPGA_REV (0x04) +#define FPGA_REV_MINOR_MASK_ (0x0000FF00) +#define FPGA_REV_MAJOR_MASK_ (0x000000FF) + +#define INT_STS (0x0C) +#define INT_STS_CLEAR_ALL_ (0xFFFFFFFF) +#define INT_STS_EEE_TX_LPI_STRT_ (0x04000000) +#define INT_STS_EEE_TX_LPI_STOP_ (0x02000000) +#define INT_STS_EEE_RX_LPI_ (0x01000000) +#define INT_STS_RDFO_ (0x00400000) +#define INT_STS_TXE_ (0x00200000) +#define INT_STS_TX_DIS_ (0x00080000) +#define INT_STS_RX_DIS_ (0x00040000) +#define INT_STS_PHY_INT_ (0x00020000) +#define INT_STS_DP_INT_ (0x00010000) +#define INT_STS_MAC_ERR_ (0x00008000) +#define INT_STS_TDFU_ (0x00004000) +#define INT_STS_TDFO_ (0x00002000) +#define INT_STS_UFX_FP_ (0x00001000) +#define INT_STS_GPIO_MASK_ (0x00000FFF) +#define INT_STS_GPIO11_ (0x00000800) +#define INT_STS_GPIO10_ (0x00000400) +#define INT_STS_GPIO9_ (0x00000200) +#define INT_STS_GPIO8_ (0x00000100) +#define INT_STS_GPIO7_ (0x00000080) +#define INT_STS_GPIO6_ (0x00000040) +#define INT_STS_GPIO5_ (0x00000020) +#define INT_STS_GPIO4_ (0x00000010) +#define INT_STS_GPIO3_ (0x00000008) +#define INT_STS_GPIO2_ (0x00000004) +#define INT_STS_GPIO1_ (0x00000002) +#define INT_STS_GPIO0_ (0x00000001) + +#define HW_CFG (0x010) +#define HW_CFG_CLK125_EN_ (0x02000000) +#define HW_CFG_REFCLK25_EN_ (0x01000000) +#define HW_CFG_LED3_EN_ (0x00800000) +#define HW_CFG_LED2_EN_ (0x00400000) +#define HW_CFG_LED1_EN_ (0x00200000) +#define HW_CFG_LED0_EN_ (0x00100000) +#define HW_CFG_EEE_PHY_LUSU_ (0x00020000) +#define HW_CFG_EEE_TSU_ (0x00010000) +#define HW_CFG_NETDET_STS_ (0x00008000) +#define HW_CFG_NETDET_EN_ (0x00004000) +#define HW_CFG_EEM_ (0x00002000) +#define HW_CFG_RST_PROTECT_ (0x00001000) +#define HW_CFG_CONNECT_BUF_ (0x00000400) +#define HW_CFG_CONNECT_EN_ (0x00000200) +#define HW_CFG_CONNECT_POL_ (0x00000100) +#define HW_CFG_SUSPEND_N_SEL_MASK_ (0x000000C0) +#define HW_CFG_SUSPEND_N_SEL_2 (0x00000000) +#define HW_CFG_SUSPEND_N_SEL_12N (0x00000040) +#define HW_CFG_SUSPEND_N_SEL_012N (0x00000080) +#define HW_CFG_SUSPEND_N_SEL_0123N (0x000000C0) +#define HW_CFG_SUSPEND_N_POL_ (0x00000020) +#define HW_CFG_MEF_ (0x00000010) +#define HW_CFG_ETC_ (0x00000008) +#define HW_CFG_LRST_ (0x00000002) +#define HW_CFG_SRST_ (0x00000001) + +#define PMT_CTL (0x014) +#define PMT_CTL_EEE_WAKEUP_EN_ (0x00002000) +#define PMT_CTL_EEE_WUPS_ (0x00001000) +#define PMT_CTL_MAC_SRST_ (0x00000800) +#define PMT_CTL_PHY_PWRUP_ (0x00000400) +#define PMT_CTL_RES_CLR_WKP_MASK_ (0x00000300) +#define PMT_CTL_RES_CLR_WKP_STS_ (0x00000200) +#define PMT_CTL_RES_CLR_WKP_EN_ (0x00000100) +#define PMT_CTL_READY_ (0x00000080) +#define PMT_CTL_SUS_MODE_MASK_ (0x00000060) +#define PMT_CTL_SUS_MODE_0_ (0x00000000) +#define PMT_CTL_SUS_MODE_1_ (0x00000020) +#define PMT_CTL_SUS_MODE_2_ (0x00000040) +#define PMT_CTL_SUS_MODE_3_ (0x00000060) +#define PMT_CTL_PHY_RST_ (0x00000010) +#define PMT_CTL_WOL_EN_ (0x00000008) +#define PMT_CTL_PHY_WAKE_EN_ (0x00000004) +#define PMT_CTL_WUPS_MASK_ (0x00000003) +#define PMT_CTL_WUPS_MLT_ (0x00000003) +#define PMT_CTL_WUPS_MAC_ (0x00000002) +#define PMT_CTL_WUPS_PHY_ (0x00000001) + +#define GPIO_CFG0 (0x018) +#define GPIO_CFG0_GPIOEN_MASK_ (0x0000F000) +#define GPIO_CFG0_GPIOEN3_ (0x00008000) +#define GPIO_CFG0_GPIOEN2_ (0x00004000) +#define GPIO_CFG0_GPIOEN1_ (0x00002000) +#define GPIO_CFG0_GPIOEN0_ (0x00001000) +#define GPIO_CFG0_GPIOBUF_MASK_ (0x00000F00) +#define GPIO_CFG0_GPIOBUF3_ (0x00000800) +#define GPIO_CFG0_GPIOBUF2_ (0x00000400) +#define GPIO_CFG0_GPIOBUF1_ (0x00000200) +#define GPIO_CFG0_GPIOBUF0_ (0x00000100) +#define GPIO_CFG0_GPIODIR_MASK_ (0x000000F0) +#define GPIO_CFG0_GPIODIR3_ (0x00000080) +#define GPIO_CFG0_GPIODIR2_ (0x00000040) +#define GPIO_CFG0_GPIODIR1_ (0x00000020) +#define GPIO_CFG0_GPIODIR0_ (0x00000010) +#define GPIO_CFG0_GPIOD_MASK_ (0x0000000F) +#define GPIO_CFG0_GPIOD3_ (0x00000008) +#define GPIO_CFG0_GPIOD2_ (0x00000004) +#define GPIO_CFG0_GPIOD1_ (0x00000002) +#define GPIO_CFG0_GPIOD0_ (0x00000001) + +#define GPIO_CFG1 (0x01C) +#define GPIO_CFG1_GPIOEN_MASK_ (0xFF000000) +#define GPIO_CFG1_GPIOEN11_ (0x80000000) +#define GPIO_CFG1_GPIOEN10_ (0x40000000) +#define GPIO_CFG1_GPIOEN9_ (0x20000000) +#define GPIO_CFG1_GPIOEN8_ (0x10000000) +#define GPIO_CFG1_GPIOEN7_ (0x08000000) +#define GPIO_CFG1_GPIOEN6_ (0x04000000) +#define GPIO_CFG1_GPIOEN5_ (0x02000000) +#define GPIO_CFG1_GPIOEN4_ (0x01000000) +#define GPIO_CFG1_GPIOBUF_MASK_ (0x00FF0000) +#define GPIO_CFG1_GPIOBUF11_ (0x00800000) +#define GPIO_CFG1_GPIOBUF10_ (0x00400000) +#define GPIO_CFG1_GPIOBUF9_ (0x00200000) +#define GPIO_CFG1_GPIOBUF8_ (0x00100000) +#define GPIO_CFG1_GPIOBUF7_ (0x00080000) +#define GPIO_CFG1_GPIOBUF6_ (0x00040000) +#define GPIO_CFG1_GPIOBUF5_ (0x00020000) +#define GPIO_CFG1_GPIOBUF4_ (0x00010000) +#define GPIO_CFG1_GPIODIR_MASK_ (0x0000FF00) +#define GPIO_CFG1_GPIODIR11_ (0x00008000) +#define GPIO_CFG1_GPIODIR10_ (0x00004000) +#define GPIO_CFG1_GPIODIR9_ (0x00002000) +#define GPIO_CFG1_GPIODIR8_ (0x00001000) +#define GPIO_CFG1_GPIODIR7_ (0x00000800) +#define GPIO_CFG1_GPIODIR6_ (0x00000400) +#define GPIO_CFG1_GPIODIR5_ (0x00000200) +#define GPIO_CFG1_GPIODIR4_ (0x00000100) +#define GPIO_CFG1_GPIOD_MASK_ (0x000000FF) +#define GPIO_CFG1_GPIOD11_ (0x00000080) +#define GPIO_CFG1_GPIOD10_ (0x00000040) +#define GPIO_CFG1_GPIOD9_ (0x00000020) +#define GPIO_CFG1_GPIOD8_ (0x00000010) +#define GPIO_CFG1_GPIOD7_ (0x00000008) +#define GPIO_CFG1_GPIOD6_ (0x00000004) +#define GPIO_CFG1_GPIOD6_ (0x00000004) +#define GPIO_CFG1_GPIOD5_ (0x00000002) +#define GPIO_CFG1_GPIOD4_ (0x00000001) + +#define GPIO_WAKE (0x020) +#define GPIO_WAKE_GPIOPOL_MASK_ (0x0FFF0000) +#define GPIO_WAKE_GPIOPOL11_ (0x08000000) +#define GPIO_WAKE_GPIOPOL10_ (0x04000000) +#define GPIO_WAKE_GPIOPOL9_ (0x02000000) +#define GPIO_WAKE_GPIOPOL8_ (0x01000000) +#define GPIO_WAKE_GPIOPOL7_ (0x00800000) +#define GPIO_WAKE_GPIOPOL6_ (0x00400000) +#define GPIO_WAKE_GPIOPOL5_ (0x00200000) +#define GPIO_WAKE_GPIOPOL4_ (0x00100000) +#define GPIO_WAKE_GPIOPOL3_ (0x00080000) +#define GPIO_WAKE_GPIOPOL2_ (0x00040000) +#define GPIO_WAKE_GPIOPOL1_ (0x00020000) +#define GPIO_WAKE_GPIOPOL0_ (0x00010000) +#define GPIO_WAKE_GPIOWK_MASK_ (0x00000FFF) +#define GPIO_WAKE_GPIOWK11_ (0x00000800) +#define GPIO_WAKE_GPIOWK10_ (0x00000400) +#define GPIO_WAKE_GPIOWK9_ (0x00000200) +#define GPIO_WAKE_GPIOWK8_ (0x00000100) +#define GPIO_WAKE_GPIOWK7_ (0x00000080) +#define GPIO_WAKE_GPIOWK6_ (0x00000040) +#define GPIO_WAKE_GPIOWK5_ (0x00000020) +#define GPIO_WAKE_GPIOWK4_ (0x00000010) +#define GPIO_WAKE_GPIOWK3_ (0x00000008) +#define GPIO_WAKE_GPIOWK2_ (0x00000004) +#define GPIO_WAKE_GPIOWK1_ (0x00000002) +#define GPIO_WAKE_GPIOWK0_ (0x00000001) + +#define DP_SEL (0x024) +#define DP_SEL_DPRDY_ (0x80000000) +#define DP_SEL_RSEL_MASK_ (0x0000000F) +#define DP_SEL_RSEL_USB_PHY_CSRS_ (0x0000000F) +#define DP_SEL_RSEL_OTP_64BIT_ (0x00000009) +#define DP_SEL_RSEL_OTP_8BIT_ (0x00000008) +#define DP_SEL_RSEL_UTX_BUF_RAM_ (0x00000007) +#define DP_SEL_RSEL_DESC_RAM_ (0x00000005) +#define DP_SEL_RSEL_TXFIFO_ (0x00000004) +#define DP_SEL_RSEL_RXFIFO_ (0x00000003) +#define DP_SEL_RSEL_LSO_ (0x00000002) +#define DP_SEL_RSEL_VLAN_DA_ (0x00000001) +#define DP_SEL_RSEL_URXBUF_ (0x00000000) +#define DP_SEL_VHF_HASH_LEN (16) +#define DP_SEL_VHF_VLAN_LEN (128) + +#define DP_CMD (0x028) +#define DP_CMD_WRITE_ (0x00000001) +#define DP_CMD_READ_ (0x00000000) + +#define DP_ADDR (0x02C) +#define DP_ADDR_MASK_ (0x00003FFF) + +#define DP_DATA (0x030) + +#define E2P_CMD (0x040) +#define E2P_CMD_EPC_BUSY_ (0x80000000) +#define E2P_CMD_EPC_CMD_MASK_ (0x70000000) +#define E2P_CMD_EPC_CMD_RELOAD_ (0x70000000) +#define E2P_CMD_EPC_CMD_ERAL_ (0x60000000) +#define E2P_CMD_EPC_CMD_ERASE_ (0x50000000) +#define E2P_CMD_EPC_CMD_WRAL_ (0x40000000) +#define E2P_CMD_EPC_CMD_WRITE_ (0x30000000) +#define E2P_CMD_EPC_CMD_EWEN_ (0x20000000) +#define E2P_CMD_EPC_CMD_EWDS_ (0x10000000) +#define E2P_CMD_EPC_CMD_READ_ (0x00000000) +#define E2P_CMD_EPC_TIMEOUT_ (0x00000400) +#define E2P_CMD_EPC_DL_ (0x00000200) +#define E2P_CMD_EPC_ADDR_MASK_ (0x000001FF) + +#define E2P_DATA (0x044) +#define E2P_DATA_EEPROM_DATA_MASK_ (0x000000FF) + +#define BOS_ATTR (0x050) +#define BOS_ATTR_BLOCK_SIZE_MASK_ (0x000000FF) + +#define SS_ATTR (0x054) +#define SS_ATTR_POLL_INT_MASK_ (0x00FF0000) +#define SS_ATTR_DEV_DESC_SIZE_MASK_ (0x0000FF00) +#define SS_ATTR_CFG_BLK_SIZE_MASK_ (0x000000FF) + +#define HS_ATTR (0x058) +#define HS_ATTR_POLL_INT_MASK_ (0x00FF0000) +#define HS_ATTR_DEV_DESC_SIZE_MASK_ (0x0000FF00) +#define HS_ATTR_CFG_BLK_SIZE_MASK_ (0x000000FF) + +#define FS_ATTR (0x05C) +#define FS_ATTR_POLL_INT_MASK_ (0x00FF0000) +#define FS_ATTR_DEV_DESC_SIZE_MASK_ (0x0000FF00) +#define FS_ATTR_CFG_BLK_SIZE_MASK_ (0x000000FF) + +#define STR_ATTR0 (0x060) +#define STR_ATTR0_CFGSTR_DESC_SIZE_MASK_ (0xFF000000) +#define STR_ATTR0_SERSTR_DESC_SIZE_MASK_ (0x00FF0000) +#define STR_ATTR0_PRODSTR_DESC_SIZE_MASK_ (0x0000FF00) +#define STR_ATTR0_MANUF_DESC_SIZE_MASK_ (0x000000FF) + +#define STR_ATTR1 (0x064) +#define STR_ATTR1_INTSTR_DESC_SIZE_MASK_ (0x000000FF) + +#define STR_FLAG_ATTR (0x068) +#define STR_FLAG_ATTR_PME_FLAGS_MASK_ (0x000000FF) + +#define USB_CFG0 (0x080) +#define USB_CFG_LPM_RESPONSE_ (0x80000000) +#define USB_CFG_LPM_CAPABILITY_ (0x40000000) +#define USB_CFG_LPM_ENBL_SLPM_ (0x20000000) +#define USB_CFG_HIRD_THR_MASK_ (0x1F000000) +#define USB_CFG_HIRD_THR_960_ (0x1C000000) +#define USB_CFG_HIRD_THR_885_ (0x1B000000) +#define USB_CFG_HIRD_THR_810_ (0x1A000000) +#define USB_CFG_HIRD_THR_735_ (0x19000000) +#define USB_CFG_HIRD_THR_660_ (0x18000000) +#define USB_CFG_HIRD_THR_585_ (0x17000000) +#define USB_CFG_HIRD_THR_510_ (0x16000000) +#define USB_CFG_HIRD_THR_435_ (0x15000000) +#define USB_CFG_HIRD_THR_360_ (0x14000000) +#define USB_CFG_HIRD_THR_285_ (0x13000000) +#define USB_CFG_HIRD_THR_210_ (0x12000000) +#define USB_CFG_HIRD_THR_135_ (0x11000000) +#define USB_CFG_HIRD_THR_60_ (0x10000000) +#define USB_CFG_MAX_BURST_BI_MASK_ (0x00F00000) +#define USB_CFG_MAX_BURST_BO_MASK_ (0x000F0000) +#define USB_CFG_MAX_DEV_SPEED_MASK_ (0x0000E000) +#define USB_CFG_MAX_DEV_SPEED_SS_ (0x00008000) +#define USB_CFG_MAX_DEV_SPEED_HS_ (0x00000000) +#define USB_CFG_MAX_DEV_SPEED_FS_ (0x00002000) +#define USB_CFG_PHY_BOOST_MASK_ (0x00000180) +#define USB_CFG_PHY_BOOST_PLUS_12_ (0x00000180) +#define USB_CFG_PHY_BOOST_PLUS_8_ (0x00000100) +#define USB_CFG_PHY_BOOST_PLUS_4_ (0x00000080) +#define USB_CFG_PHY_BOOST_NORMAL_ (0x00000000) +#define USB_CFG_BIR_ (0x00000040) +#define USB_CFG_BCE_ (0x00000020) +#define USB_CFG_PORT_SWAP_ (0x00000010) +#define USB_CFG_LPM_EN_ (0x00000008) +#define USB_CFG_RMT_WKP_ (0x00000004) +#define USB_CFG_PWR_SEL_ (0x00000002) +#define USB_CFG_STALL_BO_DIS_ (0x00000001) + +#define USB_CFG1 (0x084) +#define USB_CFG1_U1_TIMEOUT_MASK_ (0xFF000000) +#define USB_CFG1_U2_TIMEOUT_MASK_ (0x00FF0000) +#define USB_CFG1_HS_TOUT_CAL_MASK_ (0x0000E000) +#define USB_CFG1_DEV_U2_INIT_EN_ (0x00001000) +#define USB_CFG1_DEV_U2_EN_ (0x00000800) +#define USB_CFG1_DEV_U1_INIT_EN_ (0x00000400) +#define USB_CFG1_DEV_U1_EN_ (0x00000200) +#define USB_CFG1_LTM_ENABLE_ (0x00000100) +#define USB_CFG1_FS_TOUT_CAL_MASK_ (0x00000070) +#define USB_CFG1_SCALE_DOWN_MASK_ (0x00000003) +#define USB_CFG1_SCALE_DOWN_MODE3_ (0x00000003) +#define USB_CFG1_SCALE_DOWN_MODE2_ (0x00000002) +#define USB_CFG1_SCALE_DOWN_MODE1_ (0x00000001) +#define USB_CFG1_SCALE_DOWN_MODE0_ (0x00000000) + +#define USB_CFG2 (0x088) +#define USB_CFG2_SS_DETACH_TIME_MASK_ (0xFFFF0000) +#define USB_CFG2_HS_DETACH_TIME_MASK_ (0x0000FFFF) + +#define BURST_CAP (0x090) +#define BURST_CAP_SIZE_MASK_ (0x000000FF) + +#define BULK_IN_DLY (0x094) +#define BULK_IN_DLY_MASK_ (0x0000FFFF) + +#define INT_EP_CTL (0x098) +#define INT_EP_INTEP_ON_ (0x80000000) +#define INT_STS_EEE_TX_LPI_STRT_EN_ (0x04000000) +#define INT_STS_EEE_TX_LPI_STOP_EN_ (0x02000000) +#define INT_STS_EEE_RX_LPI_EN_ (0x01000000) +#define INT_EP_RDFO_EN_ (0x00400000) +#define INT_EP_TXE_EN_ (0x00200000) +#define INT_EP_TX_DIS_EN_ (0x00080000) +#define INT_EP_RX_DIS_EN_ (0x00040000) +#define INT_EP_PHY_INT_EN_ (0x00020000) +#define INT_EP_DP_INT_EN_ (0x00010000) +#define INT_EP_MAC_ERR_EN_ (0x00008000) +#define INT_EP_TDFU_EN_ (0x00004000) +#define INT_EP_TDFO_EN_ (0x00002000) +#define INT_EP_UTX_FP_EN_ (0x00001000) +#define INT_EP_GPIO_EN_MASK_ (0x00000FFF) + +#define PIPE_CTL (0x09C) +#define PIPE_CTL_TXSWING_ (0x00000040) +#define PIPE_CTL_TXMARGIN_MASK_ (0x00000038) +#define PIPE_CTL_TXDEEMPHASIS_MASK_ (0x00000006) +#define PIPE_CTL_ELASTICITYBUFFERMODE_ (0x00000001) + +#define U1_LATENCY (0xA0) +#define U2_LATENCY (0xA4) + +#define USB_STATUS (0x0A8) +#define USB_STATUS_REMOTE_WK_ (0x00100000) +#define USB_STATUS_FUNC_REMOTE_WK_ (0x00080000) +#define USB_STATUS_LTM_ENABLE_ (0x00040000) +#define USB_STATUS_U2_ENABLE_ (0x00020000) +#define USB_STATUS_U1_ENABLE_ (0x00010000) +#define USB_STATUS_SET_SEL_ (0x00000020) +#define USB_STATUS_REMOTE_WK_STS_ (0x00000010) +#define USB_STATUS_FUNC_REMOTE_WK_STS_ (0x00000008) +#define USB_STATUS_LTM_ENABLE_STS_ (0x00000004) +#define USB_STATUS_U2_ENABLE_STS_ (0x00000002) +#define USB_STATUS_U1_ENABLE_STS_ (0x00000001) + +#define USB_CFG3 (0x0AC) +#define USB_CFG3_EN_U2_LTM_ (0x40000000) +#define USB_CFG3_BULK_OUT_NUMP_OVR_ (0x20000000) +#define USB_CFG3_DIS_FAST_U1_EXIT_ (0x10000000) +#define USB_CFG3_LPM_NYET_THR_ (0x0F000000) +#define USB_CFG3_RX_DET_2_POL_LFPS_ (0x00800000) +#define USB_CFG3_LFPS_FILT_ (0x00400000) +#define USB_CFG3_SKIP_RX_DET_ (0x00200000) +#define USB_CFG3_DELAY_P1P2P3_ (0x001C0000) +#define USB_CFG3_DELAY_PHY_PWR_CHG_ (0x00020000) +#define USB_CFG3_U1U2_EXIT_FR_ (0x00010000) +#define USB_CFG3_REQ_P1P2P3 (0x00008000) +#define USB_CFG3_HST_PRT_CMPL_ (0x00004000) +#define USB_CFG3_DIS_SCRAMB_ (0x00002000) +#define USB_CFG3_PWR_DN_SCALE_ (0x00001FFF) + +#define RFE_CTL (0x0B0) +#define RFE_CTL_IGMP_COE_ (0x00004000) +#define RFE_CTL_ICMP_COE_ (0x00002000) +#define RFE_CTL_TCPUDP_COE_ (0x00001000) +#define RFE_CTL_IP_COE_ (0x00000800) +#define RFE_CTL_BCAST_EN_ (0x00000400) +#define RFE_CTL_MCAST_EN_ (0x00000200) +#define RFE_CTL_UCAST_EN_ (0x00000100) +#define RFE_CTL_VLAN_STRIP_ (0x00000080) +#define RFE_CTL_DISCARD_UNTAGGED_ (0x00000040) +#define RFE_CTL_VLAN_FILTER_ (0x00000020) +#define RFE_CTL_SA_FILTER_ (0x00000010) +#define RFE_CTL_MCAST_HASH_ (0x00000008) +#define RFE_CTL_DA_HASH_ (0x00000004) +#define RFE_CTL_DA_PERFECT_ (0x00000002) +#define RFE_CTL_RST_ (0x00000001) + +#define VLAN_TYPE (0x0B4) +#define VLAN_TYPE_MASK_ (0x0000FFFF) + +#define FCT_RX_CTL (0x0C0) +#define FCT_RX_CTL_EN_ (0x80000000) +#define FCT_RX_CTL_RST_ (0x40000000) +#define FCT_RX_CTL_SBF_ (0x02000000) +#define FCT_RX_CTL_OVFL_ (0x01000000) +#define FCT_RX_CTL_DROP_ (0x00800000) +#define FCT_RX_CTL_NOT_EMPTY_ (0x00400000) +#define FCT_RX_CTL_EMPTY_ (0x00200000) +#define FCT_RX_CTL_DIS_ (0x00100000) +#define FCT_RX_CTL_USED_MASK_ (0x0000FFFF) + +#define FCT_TX_CTL (0x0C4) +#define FCT_TX_CTL_EN_ (0x80000000) +#define FCT_TX_CTL_RST_ (0x40000000) +#define FCT_TX_CTL_NOT_EMPTY_ (0x00400000) +#define FCT_TX_CTL_EMPTY_ (0x00200000) +#define FCT_TX_CTL_DIS_ (0x00100000) +#define FCT_TX_CTL_USED_MASK_ (0x0000FFFF) + +#define FCT_RX_FIFO_END (0x0C8) +#define FCT_RX_FIFO_END_MASK_ (0x0000007F) + +#define FCT_TX_FIFO_END (0x0CC) +#define FCT_TX_FIFO_END_MASK_ (0x0000003F) + +#define FCT_FLOW (0x0D0) +#define FCT_FLOW_OFF_MASK_ (0x00007F00) +#define FCT_FLOW_ON_MASK_ (0x0000007F) + +#define RX_DP_STOR (0x0D4) +#define RX_DP_STORE_TOT_RXUSED_MASK_ (0xFFFF0000) +#define RX_DP_STORE_UTX_RXUSED_MASK_ (0x0000FFFF) + +#define TX_DP_STOR (0x0D8) +#define TX_DP_STORE_TOT_TXUSED_MASK_ (0xFFFF0000) +#define TX_DP_STORE_URX_TXUSED_MASK_ (0x0000FFFF) + +#define LTM_BELT_IDLE0 (0x0E0) +#define LTM_BELT_IDLE0_IDLE1000_ (0x0FFF0000) +#define LTM_BELT_IDLE0_IDLE100_ (0x00000FFF) + +#define LTM_BELT_IDLE1 (0x0E4) +#define LTM_BELT_IDLE1_IDLE10_ (0x00000FFF) + +#define LTM_BELT_ACT0 (0x0E8) +#define LTM_BELT_ACT0_ACT1000_ (0x0FFF0000) +#define LTM_BELT_ACT0_ACT100_ (0x00000FFF) + +#define LTM_BELT_ACT1 (0x0EC) +#define LTM_BELT_ACT1_ACT10_ (0x00000FFF) + +#define LTM_INACTIVE0 (0x0F0) +#define LTM_INACTIVE0_TIMER1000_ (0xFFFF0000) +#define LTM_INACTIVE0_TIMER100_ (0x0000FFFF) + +#define LTM_INACTIVE1 (0x0F4) +#define LTM_INACTIVE1_TIMER10_ (0x0000FFFF) + +#define MAC_CR (0x100) +#define MAC_CR_EEE_TX_CLK_STOP_EN_ (0x00040000) +#define MAC_CR_EEE_EN_ (0x00020000) +#define MAC_CR_EEE_TLAR_EN_ (0x00010000) +#define MAC_CR_ADP_ (0x00002000) +#define MAC_CR_AUTO_DUPLEX_ (0x00001000) +#define MAC_CR_AUTO_SPEED_ (0x00000800) +#define MAC_CR_LOOPBACK_ (0x00000400) +#define MAC_CR_BOLMT_MASK_ (0x000000C0) +#define MAC_CR_FULL_DUPLEX_ (0x00000008) +#define MAC_CR_SPEED_MASK_ (0x00000006) +#define MAC_CR_SPEED_1000_ (0x00000004) +#define MAC_CR_SPEED_100_ (0x00000002) +#define MAC_CR_SPEED_10_ (0x00000000) +#define MAC_CR_RST_ (0x00000001) + +#define MAC_RX (0x104) +#define MAC_RX_MAX_SIZE_SHIFT_ (16) +#define MAC_RX_MAX_SIZE_MASK_ (0x3FFF0000) +#define MAC_RX_FCS_STRIP_ (0x00000010) +#define MAC_RX_VLAN_FSE_ (0x00000004) +#define MAC_RX_RXD_ (0x00000002) +#define MAC_RX_RXEN_ (0x00000001) + +#define MAC_TX (0x108) +#define MAC_TX_BAD_FCS_ (0x00000004) +#define MAC_TX_TXD_ (0x00000002) +#define MAC_TX_TXEN_ (0x00000001) + +#define FLOW (0x10C) +#define FLOW_CR_FORCE_FC_ (0x80000000) +#define FLOW_CR_TX_FCEN_ (0x40000000) +#define FLOW_CR_RX_FCEN_ (0x20000000) +#define FLOW_CR_FPF_ (0x10000000) +#define FLOW_CR_FCPT_MASK_ (0x0000FFFF) + +#define RAND_SEED (0x110) +#define RAND_SEED_MASK_ (0x0000FFFF) + +#define ERR_STS (0x114) +#define ERR_STS_FERR_ (0x00000100) +#define ERR_STS_LERR_ (0x00000080) +#define ERR_STS_RFERR_ (0x00000040) +#define ERR_STS_ECERR_ (0x00000010) +#define ERR_STS_ALERR_ (0x00000008) +#define ERR_STS_URERR_ (0x00000004) + +#define RX_ADDRH (0x118) +#define RX_ADDRH_MASK_ (0x0000FFFF) + +#define RX_ADDRL (0x11C) +#define RX_ADDRL_MASK_ (0xFFFFFFFF) + +#define MII_ACC (0x120) +#define MII_ACC_PHY_ADDR_SHIFT_ (11) +#define MII_ACC_PHY_ADDR_MASK_ (0x0000F800) +#define MII_ACC_MIIRINDA_SHIFT_ (6) +#define MII_ACC_MIIRINDA_MASK_ (0x000007C0) +#define MII_ACC_MII_READ_ (0x00000000) +#define MII_ACC_MII_WRITE_ (0x00000002) +#define MII_ACC_MII_BUSY_ (0x00000001) + +#define MII_DATA (0x124) +#define MII_DATA_MASK_ (0x0000FFFF) + +#define MAC_RGMII_ID (0x128) +#define MAC_RGMII_ID_TXC_DELAY_EN_ (0x00000002) +#define MAC_RGMII_ID_RXC_DELAY_EN_ (0x00000001) + +#define EEE_TX_LPI_REQ_DLY (0x130) +#define EEE_TX_LPI_REQ_DLY_CNT_MASK_ (0xFFFFFFFF) + +#define EEE_TW_TX_SYS (0x134) +#define EEE_TW_TX_SYS_CNT1G_MASK_ (0xFFFF0000) +#define EEE_TW_TX_SYS_CNT100M_MASK_ (0x0000FFFF) + +#define EEE_TX_LPI_REM_DLY (0x138) +#define EEE_TX_LPI_REM_DLY_CNT_ (0x00FFFFFF) + +#define WUCSR (0x140) +#define WUCSR_TESTMODE_ (0x80000000) +#define WUCSR_RFE_WAKE_EN_ (0x00004000) +#define WUCSR_EEE_TX_WAKE_ (0x00002000) +#define WUCSR_EEE_TX_WAKE_EN_ (0x00001000) +#define WUCSR_EEE_RX_WAKE_ (0x00000800) +#define WUCSR_EEE_RX_WAKE_EN_ (0x00000400) +#define WUCSR_RFE_WAKE_FR_ (0x00000200) +#define WUCSR_STORE_WAKE_ (0x00000100) +#define WUCSR_PFDA_FR_ (0x00000080) +#define WUCSR_WUFR_ (0x00000040) +#define WUCSR_MPR_ (0x00000020) +#define WUCSR_BCST_FR_ (0x00000010) +#define WUCSR_PFDA_EN_ (0x00000008) +#define WUCSR_WAKE_EN_ (0x00000004) +#define WUCSR_MPEN_ (0x00000002) +#define WUCSR_BCST_EN_ (0x00000001) + +#define WK_SRC (0x144) +#define WK_SRC_GPIOX_INT_WK_SHIFT_ (20) +#define WK_SRC_GPIOX_INT_WK_MASK_ (0xFFF00000) +#define WK_SRC_IPV6_TCPSYN_RCD_WK_ (0x00010000) +#define WK_SRC_IPV4_TCPSYN_RCD_WK_ (0x00008000) +#define WK_SRC_EEE_TX_WK_ (0x00004000) +#define WK_SRC_EEE_RX_WK_ (0x00002000) +#define WK_SRC_GOOD_FR_WK_ (0x00001000) +#define WK_SRC_PFDA_FR_WK_ (0x00000800) +#define WK_SRC_MP_FR_WK_ (0x00000400) +#define WK_SRC_BCAST_FR_WK_ (0x00000200) +#define WK_SRC_WU_FR_WK_ (0x00000100) +#define WK_SRC_WUFF_MATCH_MASK_ (0x0000001F) + +#define WUF_CFG0 (0x150) +#define NUM_OF_WUF_CFG (32) +#define WUF_CFG_BEGIN (WUF_CFG0) +#define WUF_CFG(index) (WUF_CFG_BEGIN + (4 * (index))) +#define WUF_CFGX_EN_ (0x80000000) +#define WUF_CFGX_TYPE_MASK_ (0x03000000) +#define WUF_CFGX_TYPE_MCAST_ (0x02000000) +#define WUF_CFGX_TYPE_ALL_ (0x01000000) +#define WUF_CFGX_TYPE_UCAST_ (0x00000000) +#define WUF_CFGX_OFFSET_SHIFT_ (16) +#define WUF_CFGX_OFFSET_MASK_ (0x00FF0000) +#define WUF_CFGX_CRC16_MASK_ (0x0000FFFF) + +#define WUF_MASK0_0 (0x200) +#define WUF_MASK0_1 (0x204) +#define WUF_MASK0_2 (0x208) +#define WUF_MASK0_3 (0x20C) +#define NUM_OF_WUF_MASK (32) +#define WUF_MASK0_BEGIN (WUF_MASK0_0) +#define WUF_MASK1_BEGIN (WUF_MASK0_1) +#define WUF_MASK2_BEGIN (WUF_MASK0_2) +#define WUF_MASK3_BEGIN (WUF_MASK0_3) +#define WUF_MASK0(index) (WUF_MASK0_BEGIN + (0x10 * (index))) +#define WUF_MASK1(index) (WUF_MASK1_BEGIN + (0x10 * (index))) +#define WUF_MASK2(index) (WUF_MASK2_BEGIN + (0x10 * (index))) +#define WUF_MASK3(index) (WUF_MASK3_BEGIN + (0x10 * (index))) + +#define MAF_BASE (0x400) +#define MAF_HIX (0x00) +#define MAF_LOX (0x04) +#define NUM_OF_MAF (33) +#define MAF_HI_BEGIN (MAF_BASE + MAF_HIX) +#define MAF_LO_BEGIN (MAF_BASE + MAF_LOX) +#define MAF_HI(index) (MAF_BASE + (8 * (index)) + (MAF_HIX)) +#define MAF_LO(index) (MAF_BASE + (8 * (index)) + (MAF_LOX)) +#define MAF_HI_VALID_ (0x80000000) +#define MAF_HI_TYPE_MASK_ (0x40000000) +#define MAF_HI_TYPE_SRC_ (0x40000000) +#define MAF_HI_TYPE_DST_ (0x00000000) +#define MAF_HI_ADDR_MASK (0x0000FFFF) +#define MAF_LO_ADDR_MASK (0xFFFFFFFF) + +#define WUCSR2 (0x600) +#define WUCSR2_CSUM_DISABLE_ (0x80000000) +#define WUCSR2_NA_SA_SEL_ (0x00000100) +#define WUCSR2_NS_RCD_ (0x00000080) +#define WUCSR2_ARP_RCD_ (0x00000040) +#define WUCSR2_IPV6_TCPSYN_RCD_ (0x00000020) +#define WUCSR2_IPV4_TCPSYN_RCD_ (0x00000010) +#define WUCSR2_NS_OFFLOAD_EN_ (0x00000008) +#define WUCSR2_ARP_OFFLOAD_EN_ (0x00000004) +#define WUCSR2_IPV6_TCPSYN_WAKE_EN_ (0x00000002) +#define WUCSR2_IPV4_TCPSYN_WAKE_EN_ (0x00000001) + +#define NS1_IPV6_ADDR_DEST0 (0x610) +#define NS1_IPV6_ADDR_DEST1 (0x614) +#define NS1_IPV6_ADDR_DEST2 (0x618) +#define NS1_IPV6_ADDR_DEST3 (0x61C) + +#define NS1_IPV6_ADDR_SRC0 (0x620) +#define NS1_IPV6_ADDR_SRC1 (0x624) +#define NS1_IPV6_ADDR_SRC2 (0x628) +#define NS1_IPV6_ADDR_SRC3 (0x62C) + +#define NS1_ICMPV6_ADDR0_0 (0x630) +#define NS1_ICMPV6_ADDR0_1 (0x634) +#define NS1_ICMPV6_ADDR0_2 (0x638) +#define NS1_ICMPV6_ADDR0_3 (0x63C) + +#define NS1_ICMPV6_ADDR1_0 (0x640) +#define NS1_ICMPV6_ADDR1_1 (0x644) +#define NS1_ICMPV6_ADDR1_2 (0x648) +#define NS1_ICMPV6_ADDR1_3 (0x64C) + +#define NS2_IPV6_ADDR_DEST0 (0x650) +#define NS2_IPV6_ADDR_DEST1 (0x654) +#define NS2_IPV6_ADDR_DEST2 (0x658) +#define NS2_IPV6_ADDR_DEST3 (0x65C) + +#define NS2_IPV6_ADDR_SRC0 (0x660) +#define NS2_IPV6_ADDR_SRC1 (0x664) +#define NS2_IPV6_ADDR_SRC2 (0x668) +#define NS2_IPV6_ADDR_SRC3 (0x66C) + +#define NS2_ICMPV6_ADDR0_0 (0x670) +#define NS2_ICMPV6_ADDR0_1 (0x674) +#define NS2_ICMPV6_ADDR0_2 (0x678) +#define NS2_ICMPV6_ADDR0_3 (0x67C) + +#define NS2_ICMPV6_ADDR1_0 (0x680) +#define NS2_ICMPV6_ADDR1_1 (0x684) +#define NS2_ICMPV6_ADDR1_2 (0x688) +#define NS2_ICMPV6_ADDR1_3 (0x68C) + +#define SYN_IPV4_ADDR_SRC (0x690) +#define SYN_IPV4_ADDR_DEST (0x694) +#define SYN_IPV4_TCP_PORTS (0x698) +#define SYN_IPV4_TCP_PORTS_IPV4_DEST_PORT_SHIFT_ (16) +#define SYN_IPV4_TCP_PORTS_IPV4_DEST_PORT_MASK_ (0xFFFF0000) +#define SYN_IPV4_TCP_PORTS_IPV4_SRC_PORT_MASK_ (0x0000FFFF) + +#define SYN_IPV6_ADDR_SRC0 (0x69C) +#define SYN_IPV6_ADDR_SRC1 (0x6A0) +#define SYN_IPV6_ADDR_SRC2 (0x6A4) +#define SYN_IPV6_ADDR_SRC3 (0x6A8) + +#define SYN_IPV6_ADDR_DEST0 (0x6AC) +#define SYN_IPV6_ADDR_DEST1 (0x6B0) +#define SYN_IPV6_ADDR_DEST2 (0x6B4) +#define SYN_IPV6_ADDR_DEST3 (0x6B8) + +#define SYN_IPV6_TCP_PORTS (0x6BC) +#define SYN_IPV6_TCP_PORTS_IPV6_DEST_PORT_SHIFT_ (16) +#define SYN_IPV6_TCP_PORTS_IPV6_DEST_PORT_MASK_ (0xFFFF0000) +#define SYN_IPV6_TCP_PORTS_IPV6_SRC_PORT_MASK_ (0x0000FFFF) + +#define ARP_SPA (0x6C0) +#define ARP_TPA (0x6C4) + +#define PHY_DEV_ID (0x700) +#define PHY_DEV_ID_REV_SHIFT_ (28) +#define PHY_DEV_ID_REV_SHIFT_ (28) +#define PHY_DEV_ID_REV_MASK_ (0xF0000000) +#define PHY_DEV_ID_MODEL_SHIFT_ (22) +#define PHY_DEV_ID_MODEL_MASK_ (0x0FC00000) +#define PHY_DEV_ID_OUI_MASK_ (0x003FFFFF) + +#define OTP_BASE_ADDR (0x00001000) +#define OTP_ADDR_RANGE_ (0x1FF) + +#define OTP_PWR_DN (OTP_BASE_ADDR + 4 * 0x00) +#define OTP_PWR_DN_PWRDN_N_ (0x01) + +#define OTP_ADDR1 (OTP_BASE_ADDR + 4 * 0x01) +#define OTP_ADDR1_15_11 (0x1F) + +#define OTP_ADDR2 (OTP_BASE_ADDR + 4 * 0x02) +#define OTP_ADDR2_10_3 (0xFF) + +#define OTP_ADDR3 (OTP_BASE_ADDR + 4 * 0x03) +#define OTP_ADDR3_2_0 (0x03) + +#define OTP_PRGM_DATA (OTP_BASE_ADDR + 4 * 0x04) + +#define OTP_PRGM_MODE (OTP_BASE_ADDR + 4 * 0x05) +#define OTP_PRGM_MODE_BYTE_ (0x01) + +#define OTP_RD_DATA (OTP_BASE_ADDR + 4 * 0x06) + +#define OTP_FUNC_CMD (OTP_BASE_ADDR + 4 * 0x08) +#define OTP_FUNC_CMD_RESET_ (0x04) +#define OTP_FUNC_CMD_PROGRAM_ (0x02) +#define OTP_FUNC_CMD_READ_ (0x01) + +#define OTP_TST_CMD (OTP_BASE_ADDR + 4 * 0x09) +#define OTP_TST_CMD_TEST_DEC_SEL_ (0x10) +#define OTP_TST_CMD_PRGVRFY_ (0x08) +#define OTP_TST_CMD_WRTEST_ (0x04) +#define OTP_TST_CMD_TESTDEC_ (0x02) +#define OTP_TST_CMD_BLANKCHECK_ (0x01) + +#define OTP_CMD_GO (OTP_BASE_ADDR + 4 * 0x0A) +#define OTP_CMD_GO_GO_ (0x01) + +#define OTP_PASS_FAIL (OTP_BASE_ADDR + 4 * 0x0B) +#define OTP_PASS_FAIL_PASS_ (0x02) +#define OTP_PASS_FAIL_FAIL_ (0x01) + +#define OTP_STATUS (OTP_BASE_ADDR + 4 * 0x0C) +#define OTP_STATUS_OTP_LOCK_ (0x10) +#define OTP_STATUS_WEB_ (0x08) +#define OTP_STATUS_PGMEN (0x04) +#define OTP_STATUS_CPUMPEN_ (0x02) +#define OTP_STATUS_BUSY_ (0x01) + +#define OTP_MAX_PRG (OTP_BASE_ADDR + 4 * 0x0D) +#define OTP_MAX_PRG_MAX_PROG (0x1F) + +#define OTP_INTR_STATUS (OTP_BASE_ADDR + 4 * 0x10) +#define OTP_INTR_STATUS_READY_ (0x01) + +#define OTP_INTR_MASK (OTP_BASE_ADDR + 4 * 0x11) +#define OTP_INTR_MASK_READY_ (0x01) + +#define OTP_RSTB_PW1 (OTP_BASE_ADDR + 4 * 0x14) +#define OTP_RSTB_PW2 (OTP_BASE_ADDR + 4 * 0x15) +#define OTP_PGM_PW1 (OTP_BASE_ADDR + 4 * 0x18) +#define OTP_PGM_PW2 (OTP_BASE_ADDR + 4 * 0x19) +#define OTP_READ_PW1 (OTP_BASE_ADDR + 4 * 0x1C) +#define OTP_READ_PW2 (OTP_BASE_ADDR + 4 * 0x1D) +#define OTP_TCRST (OTP_BASE_ADDR + 4 * 0x20) +#define OTP_RSRD (OTP_BASE_ADDR + 4 * 0x21) +#define OTP_TREADEN_VAL (OTP_BASE_ADDR + 4 * 0x22) +#define OTP_TDLES_VAL (OTP_BASE_ADDR + 4 * 0x23) +#define OTP_TWWL_VAL (OTP_BASE_ADDR + 4 * 0x24) +#define OTP_TDLEH_VAL (OTP_BASE_ADDR + 4 * 0x25) +#define OTP_TWPED_VAL (OTP_BASE_ADDR + 4 * 0x26) +#define OTP_TPES_VAL (OTP_BASE_ADDR + 4 * 0x27) +#define OTP_TCPS_VAL (OTP_BASE_ADDR + 4 * 0x28) +#define OTP_TCPH_VAL (OTP_BASE_ADDR + 4 * 0x29) +#define OTP_TPGMVFY_VAL (OTP_BASE_ADDR + 4 * 0x2A) +#define OTP_TPEH_VAL (OTP_BASE_ADDR + 4 * 0x2B) +#define OTP_TPGRST_VAL (OTP_BASE_ADDR + 4 * 0x2C) +#define OTP_TCLES_VAL (OTP_BASE_ADDR + 4 * 0x2D) +#define OTP_TCLEH_VAL (OTP_BASE_ADDR + 4 * 0x2E) +#define OTP_TRDES_VAL (OTP_BASE_ADDR + 4 * 0x2F) +#define OTP_TBCACC_VAL (OTP_BASE_ADDR + 4 * 0x30) +#define OTP_TAAC_VAL (OTP_BASE_ADDR + 4 * 0x31) +#define OTP_TACCT_VAL (OTP_BASE_ADDR + 4 * 0x32) +#define OTP_TRDEP_VAL (OTP_BASE_ADDR + 4 * 0x38) +#define OTP_TPGSV_VAL (OTP_BASE_ADDR + 4 * 0x39) +#define OTP_TPVSR_VAL (OTP_BASE_ADDR + 4 * 0x3A) +#define OTP_TPVHR_VAL (OTP_BASE_ADDR + 4 * 0x3B) +#define OTP_TPVSA_VAL (OTP_BASE_ADDR + 4 * 0x3C) +#endif /* _LAN78XX_H */ diff --git a/kernel/drivers/net/usb/mcs7830.c b/kernel/drivers/net/usb/mcs7830.c index 82d844a8e..4f345bd4e 100644 --- a/kernel/drivers/net/usb/mcs7830.c +++ b/kernel/drivers/net/usb/mcs7830.c @@ -445,7 +445,6 @@ static int mcs7830_get_regs_len(struct net_device *net) static void mcs7830_get_drvinfo(struct net_device *net, struct ethtool_drvinfo *drvinfo) { usbnet_get_drvinfo(net, drvinfo); - drvinfo->regdump_len = mcs7830_get_regs_len(net); } static void mcs7830_get_regs(struct net_device *net, struct ethtool_regs *regs, void *data) diff --git a/kernel/drivers/net/usb/qmi_wwan.c b/kernel/drivers/net/usb/qmi_wwan.c index f603f3625..982e0acd1 100644 --- a/kernel/drivers/net/usb/qmi_wwan.c +++ b/kernel/drivers/net/usb/qmi_wwan.c @@ -229,11 +229,11 @@ static int qmi_wwan_bind(struct usbnet *dev, struct usb_interface *intf) u8 *buf = intf->cur_altsetting->extra; int len = intf->cur_altsetting->extralen; struct usb_interface_descriptor *desc = &intf->cur_altsetting->desc; - struct usb_cdc_union_desc *cdc_union = NULL; - struct usb_cdc_ether_desc *cdc_ether = NULL; - u32 found = 0; + struct usb_cdc_union_desc *cdc_union; + struct usb_cdc_ether_desc *cdc_ether; struct usb_driver *driver = driver_of(intf); struct qmi_wwan_state *info = (void *)&dev->data; + struct usb_cdc_parsed_header hdr; BUILD_BUG_ON((sizeof(((struct usbnet *)0)->data) < sizeof(struct qmi_wwan_state))); @@ -243,63 +243,9 @@ static int qmi_wwan_bind(struct usbnet *dev, struct usb_interface *intf) info->data = intf; /* and a number of CDC descriptors */ - while (len > 3) { - struct usb_descriptor_header *h = (void *)buf; - - /* ignore any misplaced descriptors */ - if (h->bDescriptorType != USB_DT_CS_INTERFACE) - goto next_desc; - - /* buf[2] is CDC descriptor subtype */ - switch (buf[2]) { - case USB_CDC_HEADER_TYPE: - if (found & 1 << USB_CDC_HEADER_TYPE) { - dev_dbg(&intf->dev, "extra CDC header\n"); - goto err; - } - if (h->bLength != sizeof(struct usb_cdc_header_desc)) { - dev_dbg(&intf->dev, "CDC header len %u\n", - h->bLength); - goto err; - } - break; - case USB_CDC_UNION_TYPE: - if (found & 1 << USB_CDC_UNION_TYPE) { - dev_dbg(&intf->dev, "extra CDC union\n"); - goto err; - } - if (h->bLength != sizeof(struct usb_cdc_union_desc)) { - dev_dbg(&intf->dev, "CDC union len %u\n", - h->bLength); - goto err; - } - cdc_union = (struct usb_cdc_union_desc *)buf; - break; - case USB_CDC_ETHERNET_TYPE: - if (found & 1 << USB_CDC_ETHERNET_TYPE) { - dev_dbg(&intf->dev, "extra CDC ether\n"); - goto err; - } - if (h->bLength != sizeof(struct usb_cdc_ether_desc)) { - dev_dbg(&intf->dev, "CDC ether len %u\n", - h->bLength); - goto err; - } - cdc_ether = (struct usb_cdc_ether_desc *)buf; - break; - } - - /* Remember which CDC functional descriptors we've seen. Works - * for all types we care about, of which USB_CDC_ETHERNET_TYPE - * (0x0f) is the highest numbered - */ - if (buf[2] < 32) - found |= 1 << buf[2]; - -next_desc: - len -= h->bLength; - buf += h->bLength; - } + cdc_parse_cdc_header(&hdr, intf, buf, len); + cdc_union = hdr.usb_cdc_union_desc; + cdc_ether = hdr.usb_cdc_ether_desc; /* Use separate control and data interfaces if we found a CDC Union */ if (cdc_union) { @@ -539,9 +485,14 @@ static const struct usb_device_id products[] = { USB_CDC_PROTO_NONE), .driver_info = (unsigned long)&qmi_wwan_info, }, + { /* HP lt4112 LTE/HSPA+ Gobi 4G Module (Huawei me906e) */ + USB_DEVICE_AND_INTERFACE_INFO(0x03f0, 0x581d, USB_CLASS_VENDOR_SPEC, 1, 7), + .driver_info = (unsigned long)&qmi_wwan_info, + }, /* 3. Combined interface devices matching on interface number */ {QMI_FIXED_INTF(0x0408, 0xea42, 4)}, /* Yota / Megafon M100-1 */ + {QMI_FIXED_INTF(0x05c6, 0x6001, 3)}, /* 4G LTE usb-modem U901 */ {QMI_FIXED_INTF(0x05c6, 0x7000, 0)}, {QMI_FIXED_INTF(0x05c6, 0x7001, 1)}, {QMI_FIXED_INTF(0x05c6, 0x7002, 1)}, @@ -752,11 +703,12 @@ static const struct usb_device_id products[] = { {QMI_FIXED_INTF(0x114f, 0x68a2, 8)}, /* Sierra Wireless MC7750 */ {QMI_FIXED_INTF(0x1199, 0x68a2, 8)}, /* Sierra Wireless MC7710 in QMI mode */ {QMI_FIXED_INTF(0x1199, 0x68a2, 19)}, /* Sierra Wireless MC7710 in QMI mode */ - {QMI_FIXED_INTF(0x1199, 0x68c0, 8)}, /* Sierra Wireless MC73xx */ - {QMI_FIXED_INTF(0x1199, 0x68c0, 10)}, /* Sierra Wireless MC73xx */ + {QMI_FIXED_INTF(0x1199, 0x68c0, 8)}, /* Sierra Wireless MC7304/MC7354 */ + {QMI_FIXED_INTF(0x1199, 0x68c0, 10)}, /* Sierra Wireless MC7304/MC7354 */ {QMI_FIXED_INTF(0x1199, 0x901c, 8)}, /* Sierra Wireless EM7700 */ {QMI_FIXED_INTF(0x1199, 0x901f, 8)}, /* Sierra Wireless EM7355 */ {QMI_FIXED_INTF(0x1199, 0x9041, 8)}, /* Sierra Wireless MC7305/MC7355 */ + {QMI_FIXED_INTF(0x1199, 0x9041, 10)}, /* Sierra Wireless MC7305/MC7355 */ {QMI_FIXED_INTF(0x1199, 0x9051, 8)}, /* Netgear AirCard 340U */ {QMI_FIXED_INTF(0x1199, 0x9053, 8)}, /* Sierra Wireless Modem */ {QMI_FIXED_INTF(0x1199, 0x9054, 8)}, /* Sierra Wireless Modem */ @@ -764,12 +716,17 @@ static const struct usb_device_id products[] = { {QMI_FIXED_INTF(0x1199, 0x9056, 8)}, /* Sierra Wireless Modem */ {QMI_FIXED_INTF(0x1199, 0x9057, 8)}, {QMI_FIXED_INTF(0x1199, 0x9061, 8)}, /* Sierra Wireless Modem */ + {QMI_FIXED_INTF(0x1199, 0x9070, 8)}, /* Sierra Wireless MC74xx/EM74xx */ + {QMI_FIXED_INTF(0x1199, 0x9070, 10)}, /* Sierra Wireless MC74xx/EM74xx */ + {QMI_FIXED_INTF(0x1199, 0x9071, 8)}, /* Sierra Wireless MC74xx/EM74xx */ + {QMI_FIXED_INTF(0x1199, 0x9071, 10)}, /* Sierra Wireless MC74xx/EM74xx */ {QMI_FIXED_INTF(0x1bbb, 0x011e, 4)}, /* Telekom Speedstick LTE II (Alcatel One Touch L100V LTE) */ {QMI_FIXED_INTF(0x1bbb, 0x0203, 2)}, /* Alcatel L800MA */ {QMI_FIXED_INTF(0x2357, 0x0201, 4)}, /* TP-LINK HSUPA Modem MA180 */ {QMI_FIXED_INTF(0x2357, 0x9000, 4)}, /* TP-LINK MA260 */ {QMI_FIXED_INTF(0x1bc7, 0x1200, 5)}, /* Telit LE920 */ {QMI_FIXED_INTF(0x1bc7, 0x1201, 2)}, /* Telit LE920 */ + {QMI_FIXED_INTF(0x1c9e, 0x9b01, 3)}, /* XS Stick W100-2 from 4G Systems */ {QMI_FIXED_INTF(0x0b3c, 0xc000, 4)}, /* Olivetti Olicard 100 */ {QMI_FIXED_INTF(0x0b3c, 0xc001, 4)}, /* Olivetti Olicard 120 */ {QMI_FIXED_INTF(0x0b3c, 0xc002, 4)}, /* Olivetti Olicard 140 */ @@ -784,7 +741,9 @@ static const struct usb_device_id products[] = { {QMI_FIXED_INTF(0x413c, 0x81a4, 8)}, /* Dell Wireless 5570e HSPA+ (42Mbps) Mobile Broadband Card */ {QMI_FIXED_INTF(0x413c, 0x81a8, 8)}, /* Dell Wireless 5808 Gobi(TM) 4G LTE Mobile Broadband Card */ {QMI_FIXED_INTF(0x413c, 0x81a9, 8)}, /* Dell Wireless 5808e Gobi(TM) 4G LTE Mobile Broadband Card */ - {QMI_FIXED_INTF(0x03f0, 0x581d, 4)}, /* HP lt4112 LTE/HSPA+ Gobi 4G Module (Huawei me906e) */ + {QMI_FIXED_INTF(0x413c, 0x81b1, 8)}, /* Dell Wireless 5809e Gobi(TM) 4G LTE Mobile Broadband Card */ + {QMI_FIXED_INTF(0x03f0, 0x4e1d, 8)}, /* HP lt4111 LTE/EV-DO/HSPA+ Gobi 4G Module */ + {QMI_FIXED_INTF(0x22de, 0x9061, 3)}, /* WeTelecom WPD-600N */ /* 4. Gobi 1000 devices */ {QMI_GOBI1K_DEVICE(0x05c6, 0x9212)}, /* Acer Gobi Modem Device */ @@ -815,6 +774,7 @@ static const struct usb_device_id products[] = { {QMI_GOBI_DEVICE(0x05c6, 0x9245)}, /* Samsung Gobi 2000 Modem device (VL176) */ {QMI_GOBI_DEVICE(0x03f0, 0x251d)}, /* HP Gobi 2000 Modem device (VP412) */ {QMI_GOBI_DEVICE(0x05c6, 0x9215)}, /* Acer Gobi 2000 Modem device (VP413) */ + {QMI_FIXED_INTF(0x05c6, 0x9215, 4)}, /* Quectel EC20 Mini PCIe */ {QMI_GOBI_DEVICE(0x05c6, 0x9265)}, /* Asus Gobi 2000 Modem device (VR305) */ {QMI_GOBI_DEVICE(0x05c6, 0x9235)}, /* Top Global Gobi 2000 Modem device (VR306) */ {QMI_GOBI_DEVICE(0x05c6, 0x9275)}, /* iRex Technologies Gobi 2000 Modem device (VR307) */ @@ -846,10 +806,24 @@ static const struct usb_device_id products[] = { }; MODULE_DEVICE_TABLE(usb, products); +static bool quectel_ec20_detected(struct usb_interface *intf) +{ + struct usb_device *dev = interface_to_usbdev(intf); + + if (dev->actconfig && + le16_to_cpu(dev->descriptor.idVendor) == 0x05c6 && + le16_to_cpu(dev->descriptor.idProduct) == 0x9215 && + dev->actconfig->desc.bNumInterfaces == 5) + return true; + + return false; +} + static int qmi_wwan_probe(struct usb_interface *intf, const struct usb_device_id *prod) { struct usb_device_id *id = (struct usb_device_id *)prod; + struct usb_interface_descriptor *desc = &intf->cur_altsetting->desc; /* Workaround to enable dynamic IDs. This disables usbnet * blacklisting functionality. Which, if required, can be @@ -861,6 +835,12 @@ static int qmi_wwan_probe(struct usb_interface *intf, id->driver_info = (unsigned long)&qmi_wwan_info; } + /* Quectel EC20 quirk where we've QMI on interface 4 instead of 0 */ + if (quectel_ec20_detected(intf) && desc->bInterfaceNumber == 0) { + dev_dbg(&intf->dev, "Quectel EC20 quirk, skipping interface 0\n"); + return -ENODEV; + } + return usbnet_probe(intf, id); } diff --git a/kernel/drivers/net/usb/r8152.c b/kernel/drivers/net/usb/r8152.c index aafa1a189..2fb637ad5 100644 --- a/kernel/drivers/net/usb/r8152.c +++ b/kernel/drivers/net/usb/r8152.c @@ -26,8 +26,13 @@ #include <linux/mdio.h> #include <linux/usb/cdc.h> -/* Version Information */ -#define DRIVER_VERSION "v1.08.0 (2015/01/13)" +/* Information for net-next */ +#define NETNEXT_VERSION "08" + +/* Information for net */ +#define NET_VERSION "2" + +#define DRIVER_VERSION "v1." NETNEXT_VERSION "." NET_VERSION #define DRIVER_AUTHOR "Realtek linux nic maintainers <nic_swsd@realtek.com>" #define DRIVER_DESC "Realtek RTL8152/RTL8153 Based USB Ethernet Adapters" #define MODULENAME "r8152" @@ -143,6 +148,7 @@ #define OCP_EEE_ABLE 0xa5c4 #define OCP_EEE_ADV 0xa5d0 #define OCP_EEE_LPABLE 0xa5d2 +#define OCP_PHY_STATE 0xa708 /* nway state for 8153 */ #define OCP_ADC_CFG 0xbc06 /* SRAM Register */ @@ -339,6 +345,7 @@ /* USB_USB_CTRL */ #define RX_AGG_DISABLE 0x0010 +#define RX_ZERO_EN 0x0080 /* USB_U2P3_CTRL */ #define U2P3_ENABLE 0x0001 @@ -426,6 +433,10 @@ /* OCP_DOWN_SPEED */ #define EN_10M_BGOFF 0x0080 +/* OCP_PHY_STATE */ +#define TXDIS_STATE 0x01 +#define ABD_STATE 0x02 + /* OCP_ADC_CFG */ #define CKADSEL_L 0x0100 #define ADC_EN 0x0080 @@ -494,6 +505,7 @@ enum rtl8152_flags { #define VENDOR_ID_REALTEK 0x0bda #define VENDOR_ID_SAMSUNG 0x04e8 #define VENDOR_ID_LENOVO 0x17ef +#define VENDOR_ID_NVIDIA 0x0955 #define MCU_TYPE_PLA 0x0100 #define MCU_TYPE_USB 0x0000 @@ -602,6 +614,7 @@ struct r8152 { void (*unload)(struct r8152 *); int (*eee_get)(struct r8152 *, struct ethtool_eee *); int (*eee_set)(struct r8152 *, struct ethtool_eee *); + bool (*in_nway)(struct r8152 *); } rtl_ops; int intr_interval; @@ -621,6 +634,7 @@ enum rtl_version { RTL_VER_03, RTL_VER_04, RTL_VER_05, + RTL_VER_06, RTL_VER_MAX }; @@ -1901,11 +1915,10 @@ static void rtl_drop_queued_tx(struct r8152 *tp) static void rtl8152_tx_timeout(struct net_device *netdev) { struct r8152 *tp = netdev_priv(netdev); - int i; netif_warn(tp, tx_err, netdev, "Tx timeout\n"); - for (i = 0; i < RTL8152_MAX_TX; i++) - usb_unlink_urb(tp->tx_info[i].urb); + + usb_queue_reset_device(tp->intf); } static void rtl8152_set_rx_mode(struct net_device *netdev) @@ -2074,7 +2087,6 @@ static int rtl_start_rx(struct r8152 *tp) { int i, ret = 0; - napi_disable(&tp->napi); INIT_LIST_HEAD(&tp->rx_done); for (i = 0; i < RTL8152_MAX_RX; i++) { INIT_LIST_HEAD(&tp->rx_info[i].list); @@ -2082,7 +2094,6 @@ static int rtl_start_rx(struct r8152 *tp) if (ret) break; } - napi_enable(&tp->napi); if (ret && ++i < RTL8152_MAX_RX) { struct list_head rx_queue; @@ -2165,6 +2176,7 @@ static int rtl8153_enable(struct r8152 *tp) if (test_bit(RTL8152_UNPLUG, &tp->flags)) return -ENODEV; + usb_disable_lpm(tp->udev); set_tx_qlen(tp); rtl_set_eee_plus(tp); r8153_set_rx_early_timeout(tp); @@ -2336,11 +2348,61 @@ static void __rtl_set_wol(struct r8152 *tp, u32 wolopts) device_set_wakeup_enable(&tp->udev->dev, false); } +static void r8153_u1u2en(struct r8152 *tp, bool enable) +{ + u8 u1u2[8]; + + if (enable) + memset(u1u2, 0xff, sizeof(u1u2)); + else + memset(u1u2, 0x00, sizeof(u1u2)); + + usb_ocp_write(tp, USB_TOLERANCE, BYTE_EN_SIX_BYTES, sizeof(u1u2), u1u2); +} + +static void r8153_u2p3en(struct r8152 *tp, bool enable) +{ + u32 ocp_data; + + ocp_data = ocp_read_word(tp, MCU_TYPE_USB, USB_U2P3_CTRL); + if (enable && tp->version != RTL_VER_03 && tp->version != RTL_VER_04) + ocp_data |= U2P3_ENABLE; + else + ocp_data &= ~U2P3_ENABLE; + ocp_write_word(tp, MCU_TYPE_USB, USB_U2P3_CTRL, ocp_data); +} + +static void r8153_power_cut_en(struct r8152 *tp, bool enable) +{ + u32 ocp_data; + + ocp_data = ocp_read_word(tp, MCU_TYPE_USB, USB_POWER_CUT); + if (enable) + ocp_data |= PWR_EN | PHASE2_EN; + else + ocp_data &= ~(PWR_EN | PHASE2_EN); + ocp_write_word(tp, MCU_TYPE_USB, USB_POWER_CUT, ocp_data); + + ocp_data = ocp_read_word(tp, MCU_TYPE_USB, USB_MISC_0); + ocp_data &= ~PCUT_STATUS; + ocp_write_word(tp, MCU_TYPE_USB, USB_MISC_0, ocp_data); +} + +static bool rtl_can_wakeup(struct r8152 *tp) +{ + struct usb_device *udev = tp->udev; + + return (udev->actconfig->desc.bmAttributes & USB_CONFIG_ATT_WAKEUP); +} + static void rtl_runtime_suspend_enable(struct r8152 *tp, bool enable) { if (enable) { u32 ocp_data; + r8153_u1u2en(tp, false); + r8153_u2p3en(tp, false); + __rtl_set_wol(tp, WAKE_ANY); ocp_write_byte(tp, MCU_TYPE_PLA, PLA_CRWECR, CRWECR_CONFIG); @@ -2352,6 +2414,8 @@ static void rtl_runtime_suspend_enable(struct r8152 *tp, bool enable) ocp_write_byte(tp, MCU_TYPE_PLA, PLA_CRWECR, CRWECR_NORAML); } else { __rtl_set_wol(tp, tp->saved_wolopts); + r8153_u2p3en(tp, true); + r8153_u1u2en(tp, true); } } @@ -2559,7 +2623,10 @@ static void r8153_hw_phy_cfg(struct r8152 *tp) u32 ocp_data; u16 data; - ocp_reg_write(tp, OCP_ADC_CFG, CKADSEL_L | ADC_EN | EN_EMI_L); + if (tp->version == RTL_VER_03 || tp->version == RTL_VER_04 || + tp->version == RTL_VER_05) + ocp_reg_write(tp, OCP_ADC_CFG, CKADSEL_L | ADC_EN | EN_EMI_L); + data = r8152_mdio_read(tp, MII_BMCR); if (data & BMCR_PDOWN) { data &= ~BMCR_PDOWN; @@ -2598,46 +2665,6 @@ static void r8153_hw_phy_cfg(struct r8152 *tp) set_bit(PHY_RESET, &tp->flags); } -static void r8153_u1u2en(struct r8152 *tp, bool enable) -{ - u8 u1u2[8]; - - if (enable) - memset(u1u2, 0xff, sizeof(u1u2)); - else - memset(u1u2, 0x00, sizeof(u1u2)); - - usb_ocp_write(tp, USB_TOLERANCE, BYTE_EN_SIX_BYTES, sizeof(u1u2), u1u2); -} - -static void r8153_u2p3en(struct r8152 *tp, bool enable) -{ - u32 ocp_data; - - ocp_data = ocp_read_word(tp, MCU_TYPE_USB, USB_U2P3_CTRL); - if (enable) - ocp_data |= U2P3_ENABLE; - else - ocp_data &= ~U2P3_ENABLE; - ocp_write_word(tp, MCU_TYPE_USB, USB_U2P3_CTRL, ocp_data); -} - -static void r8153_power_cut_en(struct r8152 *tp, bool enable) -{ - u32 ocp_data; - - ocp_data = ocp_read_word(tp, MCU_TYPE_USB, USB_POWER_CUT); - if (enable) - ocp_data |= PWR_EN | PHASE2_EN; - else - ocp_data &= ~(PWR_EN | PHASE2_EN); - ocp_write_word(tp, MCU_TYPE_USB, USB_POWER_CUT, ocp_data); - - ocp_data = ocp_read_word(tp, MCU_TYPE_USB, USB_MISC_0); - ocp_data &= ~PCUT_STATUS; - ocp_write_word(tp, MCU_TYPE_USB, USB_MISC_0, ocp_data); -} - static void r8153_first_init(struct r8152 *tp) { u32 ocp_data; @@ -2700,7 +2727,7 @@ static void r8153_first_init(struct r8152 *tp) /* rx aggregation */ ocp_data = ocp_read_word(tp, MCU_TYPE_USB, USB_USB_CTRL); - ocp_data &= ~RX_AGG_DISABLE; + ocp_data &= ~(RX_AGG_DISABLE | RX_ZERO_EN); ocp_write_word(tp, MCU_TYPE_USB, USB_USB_CTRL, ocp_data); } @@ -2780,6 +2807,7 @@ static void rtl8153_disable(struct r8152 *tp) r8153_disable_aldps(tp); rtl_disable(tp); r8153_enable_aldps(tp); + usb_enable_lpm(tp->udev); } static int rtl8152_set_speed(struct r8152 *tp, u8 autoneg, u16 speed, u8 duplex) @@ -2900,9 +2928,13 @@ static void rtl8153_up(struct r8152 *tp) if (test_bit(RTL8152_UNPLUG, &tp->flags)) return; + r8153_u1u2en(tp, false); r8153_disable_aldps(tp); r8153_first_init(tp); r8153_enable_aldps(tp); + r8153_u2p3en(tp, true); + r8153_u1u2en(tp, true); + usb_enable_lpm(tp->udev); } static void rtl8153_down(struct r8152 *tp) @@ -2913,12 +2945,39 @@ static void rtl8153_down(struct r8152 *tp) } r8153_u1u2en(tp, false); + r8153_u2p3en(tp, false); r8153_power_cut_en(tp, false); r8153_disable_aldps(tp); r8153_enter_oob(tp); r8153_enable_aldps(tp); } +static bool rtl8152_in_nway(struct r8152 *tp) +{ + u16 nway_state; + + ocp_write_word(tp, MCU_TYPE_PLA, PLA_OCP_GPHY_BASE, 0x2000); + tp->ocp_base = 0x2000; + ocp_write_byte(tp, MCU_TYPE_PLA, 0xb014, 0x4c); /* phy state */ + nway_state = ocp_read_word(tp, MCU_TYPE_PLA, 0xb01a); + + /* bit 15: TXDIS_STATE, bit 14: ABD_STATE */ + if (nway_state & 0xc000) + return false; + else + return true; +} + +static bool rtl8153_in_nway(struct r8152 *tp) +{ + u16 phy_state = ocp_reg_read(tp, OCP_PHY_STATE) & 0xff; + + if (phy_state == TXDIS_STATE || phy_state == ABD_STATE) + return false; + else + return true; +} + static void set_carrier(struct r8152 *tp) { struct net_device *netdev = tp->netdev; @@ -2931,8 +2990,10 @@ static void set_carrier(struct r8152 *tp) if (!netif_carrier_ok(netdev)) { tp->rtl_ops.enable(tp); set_bit(RTL8152_SET_RX_MODE, &tp->flags); + napi_disable(&tp->napi); netif_carrier_on(netdev); rtl_start_rx(tp); + napi_enable(&tp->napi); } } else { if (netif_carrier_ok(netdev)) { @@ -3006,17 +3067,6 @@ static int rtl8152_open(struct net_device *netdev) mutex_lock(&tp->control); - /* The WORK_ENABLE may be set when autoresume occurs */ - if (test_bit(WORK_ENABLE, &tp->flags)) { - clear_bit(WORK_ENABLE, &tp->flags); - usb_kill_urb(tp->intr_urb); - cancel_delayed_work_sync(&tp->schedule); - - /* disable the tx/rx, if the workqueue has enabled them. */ - if (netif_carrier_ok(netdev)) - tp->rtl_ops.disable(tp); - } - tp->rtl_ops.up(tp); rtl8152_set_speed(tp, AUTONEG_ENABLE, @@ -3063,12 +3113,6 @@ static int rtl8152_close(struct net_device *netdev) } else { mutex_lock(&tp->control); - /* The autosuspend may have been enabled and wouldn't - * be disable when autoresume occurs, because the - * netif_running() would be false. - */ - rtl_runtime_suspend_enable(tp, false); - tp->rtl_ops.down(tp); mutex_unlock(&tp->control); @@ -3222,7 +3266,7 @@ static void r8152b_init(struct r8152 *tp) /* enable rx aggregation */ ocp_data = ocp_read_word(tp, MCU_TYPE_USB, USB_USB_CTRL); - ocp_data &= ~RX_AGG_DISABLE; + ocp_data &= ~(RX_AGG_DISABLE | RX_ZERO_EN); ocp_write_word(tp, MCU_TYPE_USB, USB_USB_CTRL, ocp_data); } @@ -3251,6 +3295,7 @@ static void r8153_init(struct r8152 *tp) msleep(20); } + usb_disable_lpm(tp->udev); r8153_u2p3en(tp, false); if (tp->version == RTL_VER_04) { @@ -3273,6 +3318,13 @@ static void r8153_init(struct r8152 *tp) else ocp_data |= DYNAMIC_BURST; ocp_write_byte(tp, MCU_TYPE_USB, USB_CSR_DUMMY1, ocp_data); + } else if (tp->version == RTL_VER_06) { + ocp_data = ocp_read_byte(tp, MCU_TYPE_USB, USB_CSR_DUMMY1); + if (ocp_read_word(tp, MCU_TYPE_USB, USB_BURST_SIZE) == 0) + ocp_data &= ~DYNAMIC_BURST; + else + ocp_data |= DYNAMIC_BURST; + ocp_write_byte(tp, MCU_TYPE_USB, USB_CSR_DUMMY1, ocp_data); } ocp_data = ocp_read_byte(tp, MCU_TYPE_USB, USB_CSR_DUMMY2); @@ -3318,6 +3370,80 @@ static void r8153_init(struct r8152 *tp) r8153_enable_aldps(tp); r8152b_enable_fc(tp); rtl_tally_reset(tp); + r8153_u2p3en(tp, true); +} + +static int rtl8152_pre_reset(struct usb_interface *intf) +{ + struct r8152 *tp = usb_get_intfdata(intf); + struct net_device *netdev; + + if (!tp) + return 0; + + netdev = tp->netdev; + if (!netif_running(netdev)) + return 0; + + napi_disable(&tp->napi); + clear_bit(WORK_ENABLE, &tp->flags); + usb_kill_urb(tp->intr_urb); + cancel_delayed_work_sync(&tp->schedule); + if (netif_carrier_ok(netdev)) { + netif_stop_queue(netdev); + mutex_lock(&tp->control); + tp->rtl_ops.disable(tp); + mutex_unlock(&tp->control); + } + + return 0; +} + +static int rtl8152_post_reset(struct usb_interface *intf) +{ + struct r8152 *tp = usb_get_intfdata(intf); + struct net_device *netdev; + + if (!tp) + return 0; + + netdev = tp->netdev; + if (!netif_running(netdev)) + return 0; + + set_bit(WORK_ENABLE, &tp->flags); + if (netif_carrier_ok(netdev)) { + mutex_lock(&tp->control); + tp->rtl_ops.enable(tp); + rtl8152_set_rx_mode(netdev); + mutex_unlock(&tp->control); + netif_wake_queue(netdev); + } + + napi_enable(&tp->napi); + + return 0; +} + +static bool delay_autosuspend(struct r8152 *tp) +{ + bool sw_linking = !!netif_carrier_ok(tp->netdev); + bool hw_linking = !!(rtl8152_get_speed(tp) & LINK_STATUS); + + /* This means a linking change occurs and the driver doesn't detect it, + * yet. If the driver has disabled tx/rx and hw is linking on, the + * device wouldn't wake up by receiving any packet. + */ + if (work_busy(&tp->schedule.work) || sw_linking != hw_linking) + return true; + + /* If the linking down is occurred by nway, the device may miss the + * linking change event. And it wouldn't wake when linking on. + */ + if (!sw_linking && tp->rtl_ops.in_nway(tp)) + return true; + else + return false; } static int rtl8152_suspend(struct usb_interface *intf, pm_message_t message) @@ -3329,7 +3455,7 @@ static int rtl8152_suspend(struct usb_interface *intf, pm_message_t message) mutex_lock(&tp->control); if (PMSG_IS_AUTO(message)) { - if (netif_running(netdev) && work_busy(&tp->schedule.work)) { + if (netif_running(netdev) && delay_autosuspend(tp)) { ret = -EBUSY; goto out1; } @@ -3369,13 +3495,15 @@ static int rtl8152_resume(struct usb_interface *intf) netif_device_attach(tp->netdev); } - if (netif_running(tp->netdev)) { + if (netif_running(tp->netdev) && tp->netdev->flags & IFF_UP) { if (test_bit(SELECTIVE_SUSPEND, &tp->flags)) { rtl_runtime_suspend_enable(tp, false); clear_bit(SELECTIVE_SUSPEND, &tp->flags); + napi_disable(&tp->napi); set_bit(WORK_ENABLE, &tp->flags); if (netif_carrier_ok(tp->netdev)) rtl_start_rx(tp); + napi_enable(&tp->napi); } else { tp->rtl_ops.up(tp); rtl8152_set_speed(tp, AUTONEG_ENABLE, @@ -3387,6 +3515,8 @@ static int rtl8152_resume(struct usb_interface *intf) } usb_submit_urb(tp->intr_urb, GFP_KERNEL); } else if (test_bit(SELECTIVE_SUSPEND, &tp->flags)) { + if (tp->netdev->flags & IFF_UP) + rtl_runtime_suspend_enable(tp, false); clear_bit(SELECTIVE_SUSPEND, &tp->flags); } @@ -3395,6 +3525,14 @@ static int rtl8152_resume(struct usb_interface *intf) return 0; } +static int rtl8152_reset_resume(struct usb_interface *intf) +{ + struct r8152 *tp = usb_get_intfdata(intf); + + clear_bit(SELECTIVE_SUSPEND, &tp->flags); + return rtl8152_resume(intf); +} + static void rtl8152_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol) { struct r8152 *tp = netdev_priv(dev); @@ -3402,12 +3540,15 @@ static void rtl8152_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol) if (usb_autopm_get_interface(tp->intf) < 0) return; - mutex_lock(&tp->control); - - wol->supported = WAKE_ANY; - wol->wolopts = __rtl_get_wol(tp); - - mutex_unlock(&tp->control); + if (!rtl_can_wakeup(tp)) { + wol->supported = 0; + wol->wolopts = 0; + } else { + mutex_lock(&tp->control); + wol->supported = WAKE_ANY; + wol->wolopts = __rtl_get_wol(tp); + mutex_unlock(&tp->control); + } usb_autopm_put_interface(tp->intf); } @@ -3417,6 +3558,9 @@ static int rtl8152_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol) struct r8152 *tp = netdev_priv(dev); int ret; + if (!rtl_can_wakeup(tp)) + return -EOPNOTSUPP; + ret = usb_autopm_get_interface(tp->intf); if (ret < 0) goto out_set_wol; @@ -3907,6 +4051,10 @@ static void r8152b_get_version(struct r8152 *tp) tp->version = RTL_VER_05; tp->mii.supports_gmii = 1; break; + case 0x5c30: + tp->version = RTL_VER_06; + tp->mii.supports_gmii = 1; + break; default: netif_info(tp, probe, tp->netdev, "Unknown version 0x%04x\n", version); @@ -3947,11 +4095,13 @@ static int rtl_ops_init(struct r8152 *tp) ops->unload = rtl8152_unload; ops->eee_get = r8152_get_eee; ops->eee_set = r8152_set_eee; + ops->in_nway = rtl8152_in_nway; break; case RTL_VER_03: case RTL_VER_04: case RTL_VER_05: + case RTL_VER_06: ops->init = r8153_init; ops->enable = rtl8153_enable; ops->disable = rtl8153_disable; @@ -3960,6 +4110,7 @@ static int rtl_ops_init(struct r8152 *tp) ops->unload = rtl8153_unload; ops->eee_get = r8153_get_eee; ops->eee_set = r8153_set_eee; + ops->in_nway = rtl8153_in_nway; break; default: @@ -4058,6 +4209,9 @@ static int rtl8152_probe(struct usb_interface *intf, goto out1; } + if (!rtl_can_wakeup(tp)) + __rtl_set_wol(tp, 0); + tp->saved_wolopts = __rtl_get_wol(tp); if (tp->saved_wolopts) device_set_wakeup_enable(&udev->dev, true); @@ -4117,6 +4271,7 @@ static struct usb_device_id rtl8152_table[] = { {REALTEK_USB_DEVICE(VENDOR_ID_SAMSUNG, 0xa101)}, {REALTEK_USB_DEVICE(VENDOR_ID_LENOVO, 0x7205)}, {REALTEK_USB_DEVICE(VENDOR_ID_LENOVO, 0x304f)}, + {REALTEK_USB_DEVICE(VENDOR_ID_NVIDIA, 0x09ff)}, {} }; @@ -4129,7 +4284,9 @@ static struct usb_driver rtl8152_driver = { .disconnect = rtl8152_disconnect, .suspend = rtl8152_suspend, .resume = rtl8152_resume, - .reset_resume = rtl8152_resume, + .reset_resume = rtl8152_reset_resume, + .pre_reset = rtl8152_pre_reset, + .post_reset = rtl8152_post_reset, .supports_autosuspend = 1, .disable_hub_initiated_lpm = 1, }; diff --git a/kernel/drivers/net/usb/smsc75xx.c b/kernel/drivers/net/usb/smsc75xx.c index d9e789226..30033dbe6 100644 --- a/kernel/drivers/net/usb/smsc75xx.c +++ b/kernel/drivers/net/usb/smsc75xx.c @@ -2185,11 +2185,6 @@ static int smsc75xx_rx_fixup(struct usbnet *dev, struct sk_buff *skb) skb_pull(skb, align_count); } - if (unlikely(skb->len < 0)) { - netdev_warn(dev->net, "invalid rx length<0 %d\n", skb->len); - return 0; - } - return 1; } diff --git a/kernel/drivers/net/usb/smsc95xx.c b/kernel/drivers/net/usb/smsc95xx.c index 26423adc3..66b3ab9f6 100644 --- a/kernel/drivers/net/usb/smsc95xx.c +++ b/kernel/drivers/net/usb/smsc95xx.c @@ -1815,11 +1815,6 @@ static int smsc95xx_rx_fixup(struct usbnet *dev, struct sk_buff *skb) skb_pull(skb, align_count); } - if (unlikely(skb->len < 0)) { - netdev_warn(dev->net, "invalid rx length<0 %d\n", skb->len); - return 0; - } - return 1; } diff --git a/kernel/drivers/net/usb/sr9800.c b/kernel/drivers/net/usb/sr9800.c index 953de1326..a50df0d8f 100644 --- a/kernel/drivers/net/usb/sr9800.c +++ b/kernel/drivers/net/usb/sr9800.c @@ -470,14 +470,10 @@ static int sr_get_eeprom(struct net_device *net, static void sr_get_drvinfo(struct net_device *net, struct ethtool_drvinfo *info) { - struct usbnet *dev = netdev_priv(net); - struct sr_data *data = (struct sr_data *)&dev->data; - /* Inherit standard device info */ usbnet_get_drvinfo(net, info); strncpy(info->driver, DRIVER_NAME, sizeof(info->driver)); strncpy(info->version, DRIVER_VERSION, sizeof(info->version)); - info->eedump_len = data->eeprom_len; } static u32 sr_get_link(struct net_device *net) diff --git a/kernel/drivers/net/usb/usbnet.c b/kernel/drivers/net/usb/usbnet.c index e0498571a..0744bf2ef 100644 --- a/kernel/drivers/net/usb/usbnet.c +++ b/kernel/drivers/net/usb/usbnet.c @@ -42,6 +42,7 @@ #include <linux/mii.h> #include <linux/usb.h> #include <linux/usb/usbnet.h> +#include <linux/usb/cdc.h> #include <linux/slab.h> #include <linux/kernel.h> #include <linux/pm_runtime.h> @@ -428,12 +429,18 @@ static enum skb_state defer_bh(struct usbnet *dev, struct sk_buff *skb, old_state = entry->state; entry->state = state; __skb_unlink(skb, list); - spin_unlock(&list->lock); - spin_lock(&dev->done.lock); + + /* defer_bh() is never called with list == &dev->done. + * spin_lock_nested() tells lockdep that it is OK to take + * dev->done.lock here with list->lock held. + */ + spin_lock_nested(&dev->done.lock, SINGLE_DEPTH_NESTING); + __skb_queue_tail(&dev->done, skb); if (dev->done.qlen == 1) tasklet_schedule(&dev->bh); - spin_unlock_irqrestore(&dev->done.lock, flags); + spin_unlock(&dev->done.lock); + spin_unlock_irqrestore(&list->lock, flags); return old_state; } @@ -749,6 +756,20 @@ EXPORT_SYMBOL_GPL(usbnet_unlink_rx_urbs); /*-------------------------------------------------------------------------*/ +static void wait_skb_queue_empty(struct sk_buff_head *q) +{ + unsigned long flags; + + spin_lock_irqsave(&q->lock, flags); + while (!skb_queue_empty(q)) { + spin_unlock_irqrestore(&q->lock, flags); + schedule_timeout(msecs_to_jiffies(UNLINK_TIMEOUT_MS)); + set_current_state(TASK_UNINTERRUPTIBLE); + spin_lock_irqsave(&q->lock, flags); + } + spin_unlock_irqrestore(&q->lock, flags); +} + // precondition: never called in_interrupt static void usbnet_terminate_urbs(struct usbnet *dev) { @@ -762,14 +783,11 @@ static void usbnet_terminate_urbs(struct usbnet *dev) unlink_urbs(dev, &dev->rxq); /* maybe wait for deletions to finish. */ - while (!skb_queue_empty(&dev->rxq) - && !skb_queue_empty(&dev->txq) - && !skb_queue_empty(&dev->done)) { - schedule_timeout(msecs_to_jiffies(UNLINK_TIMEOUT_MS)); - set_current_state(TASK_UNINTERRUPTIBLE); - netif_dbg(dev, ifdown, dev->net, - "waited for %d urb completions\n", temp); - } + wait_skb_queue_empty(&dev->rxq); + wait_skb_queue_empty(&dev->txq); + wait_skb_queue_empty(&dev->done); + netif_dbg(dev, ifdown, dev->net, + "waited for %d urb completions\n", temp); set_current_state(TASK_RUNNING); remove_wait_queue(&dev->wait, &wait); } @@ -1644,12 +1662,6 @@ usbnet_probe (struct usb_interface *udev, const struct usb_device_id *prod) * bind() should set rx_urb_size in that case. */ dev->hard_mtu = net->mtu + net->hard_header_len; -#if 0 -// dma_supported() is deeply broken on almost all architectures - // possible with some EHCI controllers - if (dma_supported (&udev->dev, DMA_BIT_MASK(64))) - net->features |= NETIF_F_HIGHDMA; -#endif net->netdev_ops = &usbnet_netdev_ops; net->watchdog_timeo = TX_TIMEOUT_JIFFIES; @@ -1945,6 +1957,143 @@ out: return err; } +int cdc_parse_cdc_header(struct usb_cdc_parsed_header *hdr, + struct usb_interface *intf, + u8 *buffer, + int buflen) +{ + /* duplicates are ignored */ + struct usb_cdc_union_desc *union_header = NULL; + + /* duplicates are not tolerated */ + struct usb_cdc_header_desc *header = NULL; + struct usb_cdc_ether_desc *ether = NULL; + struct usb_cdc_mdlm_detail_desc *detail = NULL; + struct usb_cdc_mdlm_desc *desc = NULL; + + unsigned int elength; + int cnt = 0; + + memset(hdr, 0x00, sizeof(struct usb_cdc_parsed_header)); + hdr->phonet_magic_present = false; + while (buflen > 0) { + elength = buffer[0]; + if (!elength) { + dev_err(&intf->dev, "skipping garbage byte\n"); + elength = 1; + goto next_desc; + } + if (buffer[1] != USB_DT_CS_INTERFACE) { + dev_err(&intf->dev, "skipping garbage\n"); + goto next_desc; + } + + switch (buffer[2]) { + case USB_CDC_UNION_TYPE: /* we've found it */ + if (elength < sizeof(struct usb_cdc_union_desc)) + goto next_desc; + if (union_header) { + dev_err(&intf->dev, "More than one union descriptor, skipping ...\n"); + goto next_desc; + } + union_header = (struct usb_cdc_union_desc *)buffer; + break; + case USB_CDC_COUNTRY_TYPE: + if (elength < sizeof(struct usb_cdc_country_functional_desc)) + goto next_desc; + hdr->usb_cdc_country_functional_desc = + (struct usb_cdc_country_functional_desc *)buffer; + break; + case USB_CDC_HEADER_TYPE: + if (elength != sizeof(struct usb_cdc_header_desc)) + goto next_desc; + if (header) + return -EINVAL; + header = (struct usb_cdc_header_desc *)buffer; + break; + case USB_CDC_ACM_TYPE: + if (elength < sizeof(struct usb_cdc_acm_descriptor)) + goto next_desc; + hdr->usb_cdc_acm_descriptor = + (struct usb_cdc_acm_descriptor *)buffer; + break; + case USB_CDC_ETHERNET_TYPE: + if (elength != sizeof(struct usb_cdc_ether_desc)) + goto next_desc; + if (ether) + return -EINVAL; + ether = (struct usb_cdc_ether_desc *)buffer; + break; + case USB_CDC_CALL_MANAGEMENT_TYPE: + if (elength < sizeof(struct usb_cdc_call_mgmt_descriptor)) + goto next_desc; + hdr->usb_cdc_call_mgmt_descriptor = + (struct usb_cdc_call_mgmt_descriptor *)buffer; + break; + case USB_CDC_DMM_TYPE: + if (elength < sizeof(struct usb_cdc_dmm_desc)) + goto next_desc; + hdr->usb_cdc_dmm_desc = + (struct usb_cdc_dmm_desc *)buffer; + break; + case USB_CDC_MDLM_TYPE: + if (elength < sizeof(struct usb_cdc_mdlm_desc *)) + goto next_desc; + if (desc) + return -EINVAL; + desc = (struct usb_cdc_mdlm_desc *)buffer; + break; + case USB_CDC_MDLM_DETAIL_TYPE: + if (elength < sizeof(struct usb_cdc_mdlm_detail_desc *)) + goto next_desc; + if (detail) + return -EINVAL; + detail = (struct usb_cdc_mdlm_detail_desc *)buffer; + break; + case USB_CDC_NCM_TYPE: + if (elength < sizeof(struct usb_cdc_ncm_desc)) + goto next_desc; + hdr->usb_cdc_ncm_desc = (struct usb_cdc_ncm_desc *)buffer; + break; + case USB_CDC_MBIM_TYPE: + if (elength < sizeof(struct usb_cdc_mbim_desc)) + goto next_desc; + + hdr->usb_cdc_mbim_desc = (struct usb_cdc_mbim_desc *)buffer; + break; + case USB_CDC_MBIM_EXTENDED_TYPE: + if (elength < sizeof(struct usb_cdc_mbim_extended_desc)) + break; + hdr->usb_cdc_mbim_extended_desc = + (struct usb_cdc_mbim_extended_desc *)buffer; + break; + case CDC_PHONET_MAGIC_NUMBER: + hdr->phonet_magic_present = true; + break; + default: + /* + * there are LOTS more CDC descriptors that + * could legitimately be found here. + */ + dev_dbg(&intf->dev, "Ignoring descriptor: type %02x, length %ud\n", + buffer[2], elength); + goto next_desc; + } + cnt++; +next_desc: + buflen -= elength; + buffer += elength; + } + hdr->usb_cdc_union_desc = union_header; + hdr->usb_cdc_header_desc = header; + hdr->usb_cdc_mdlm_detail_desc = detail; + hdr->usb_cdc_mdlm_desc = desc; + hdr->usb_cdc_ether_desc = ether; + return cnt; +} + +EXPORT_SYMBOL(cdc_parse_cdc_header); + /* * The function can't be called inside suspend/resume callback, * otherwise deadlock will be caused. |