From 1c0b28b1ee90261a0a27194e6684dd2837785064 Mon Sep 17 00:00:00 2001 From: "Hans J. Koch" Date: Wed, 21 Apr 2010 00:18:06 +0000 Subject: can: Fix possible NULL pointer dereference in ems_usb.c In ems_usb_probe(), a pointer is dereferenced after making sure it is NULL... This patch replaces netdev->dev.parent with &intf->dev in dev_err() calls to avoid this. Signed-off-by: "Hans J. Koch" Acked-by: Wolfgang Grandegger Signed-off-by: David S. Miller --- drivers/net/can/usb/ems_usb.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) (limited to 'drivers') diff --git a/drivers/net/can/usb/ems_usb.c b/drivers/net/can/usb/ems_usb.c index 33451092b8e8..d800b598ae3d 100644 --- a/drivers/net/can/usb/ems_usb.c +++ b/drivers/net/can/usb/ems_usb.c @@ -1006,7 +1006,7 @@ static int ems_usb_probe(struct usb_interface *intf, netdev = alloc_candev(sizeof(struct ems_usb), MAX_TX_URBS); if (!netdev) { - dev_err(netdev->dev.parent, "Couldn't alloc candev\n"); + dev_err(&intf->dev, "ems_usb: Couldn't alloc candev\n"); return -ENOMEM; } @@ -1036,20 +1036,20 @@ static int ems_usb_probe(struct usb_interface *intf, dev->intr_urb = usb_alloc_urb(0, GFP_KERNEL); if (!dev->intr_urb) { - dev_err(netdev->dev.parent, "Couldn't alloc intr URB\n"); + dev_err(&intf->dev, "Couldn't alloc intr URB\n"); goto cleanup_candev; } dev->intr_in_buffer = kzalloc(INTR_IN_BUFFER_SIZE, GFP_KERNEL); if (!dev->intr_in_buffer) { - dev_err(netdev->dev.parent, "Couldn't alloc Intr buffer\n"); + dev_err(&intf->dev, "Couldn't alloc Intr buffer\n"); goto cleanup_intr_urb; } dev->tx_msg_buffer = kzalloc(CPC_HEADER_SIZE + sizeof(struct ems_cpc_msg), GFP_KERNEL); if (!dev->tx_msg_buffer) { - dev_err(netdev->dev.parent, "Couldn't alloc Tx buffer\n"); + dev_err(&intf->dev, "Couldn't alloc Tx buffer\n"); goto cleanup_intr_in_buffer; } -- cgit v1.2.3 From df245dce572bc22b230a05532a3f9daee50effb5 Mon Sep 17 00:00:00 2001 From: Alexander Kurz Date: Fri, 16 Apr 2010 03:01:01 +0000 Subject: net: 3c574_cs fix stats.tx_bytes counter Update the stats counter calculation in 3c574_cs, similar to the method used in 3c589_cs. This corrects the contents of the counter on tests using a "Megahertz 574B" card. [linux@dominikbrodowski.net: clean up commit message] Signed-off-by: Alexander Kurz Signed-off-by: Dominik Brodowski Signed-off-by: David S. Miller --- drivers/net/pcmcia/3c574_cs.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/net/pcmcia/3c574_cs.c b/drivers/net/pcmcia/3c574_cs.c index 3d1d3a7b7ed3..757f87bb1db3 100644 --- a/drivers/net/pcmcia/3c574_cs.c +++ b/drivers/net/pcmcia/3c574_cs.c @@ -781,8 +781,13 @@ static netdev_tx_t el3_start_xmit(struct sk_buff *skb, inw(ioaddr + EL3_STATUS)); spin_lock_irqsave(&lp->window_lock, flags); + + dev->stats.tx_bytes += skb->len; + + /* Put out the doubleword header... */ outw(skb->len, ioaddr + TX_FIFO); outw(0, ioaddr + TX_FIFO); + /* ... and the packet rounded to a doubleword. */ outsl(ioaddr + TX_FIFO, skb->data, (skb->len+3)>>2); dev->trans_start = jiffies; @@ -1021,8 +1026,6 @@ static void update_stats(struct net_device *dev) /* BadSSD */ inb(ioaddr + 12); up = inb(ioaddr + 13); - dev->stats.tx_bytes += tx + ((up & 0xf0) << 12); - EL3WINDOW(1); } -- cgit v1.2.3 From 761172fbf672c5784b2a0d71ca2f4389eb7a2c21 Mon Sep 17 00:00:00 2001 From: Abraham Arce Date: Fri, 16 Apr 2010 14:48:43 +0000 Subject: KS8851: NULL pointer dereference if list is empty Fix NULL pointer dereference in ks8851_tx_work by checking if dequeued list is already empty before writing the packet to TX FIFO Unable to handle kernel NULL pointer dereference at virtual address 00000050 PC is at ks8851_tx_work+0xdc/0x1b0 LR is at wait_for_common+0x148/0x164 pc : [] lr : [] psr: 20000013 Backtrace: ks8851_tx_work+0x0/0x1b0 worker_thread+0x0/0x190 kthread+0x0/0x90 Signed-off-by: Abraham Arce Signed-off-by: David S. Miller --- drivers/net/ks8851.c | 12 +++++++----- 1 file changed, 7 insertions(+), 5 deletions(-) (limited to 'drivers') diff --git a/drivers/net/ks8851.c b/drivers/net/ks8851.c index 13cc1ca261d9..9e9f9b349766 100644 --- a/drivers/net/ks8851.c +++ b/drivers/net/ks8851.c @@ -722,12 +722,14 @@ static void ks8851_tx_work(struct work_struct *work) txb = skb_dequeue(&ks->txq); last = skb_queue_empty(&ks->txq); - ks8851_wrreg16(ks, KS_RXQCR, ks->rc_rxqcr | RXQCR_SDA); - ks8851_wrpkt(ks, txb, last); - ks8851_wrreg16(ks, KS_RXQCR, ks->rc_rxqcr); - ks8851_wrreg16(ks, KS_TXQCR, TXQCR_METFE); + if (txb != NULL) { + ks8851_wrreg16(ks, KS_RXQCR, ks->rc_rxqcr | RXQCR_SDA); + ks8851_wrpkt(ks, txb, last); + ks8851_wrreg16(ks, KS_RXQCR, ks->rc_rxqcr); + ks8851_wrreg16(ks, KS_TXQCR, TXQCR_METFE); - ks8851_done_tx(ks, txb); + ks8851_done_tx(ks, txb); + } } mutex_unlock(&ks->lock); -- cgit v1.2.3 From 9441cad99b4b09d6b627351c2d282833868c116c Mon Sep 17 00:00:00 2001 From: Hiroshi Shimamoto Date: Mon, 19 Apr 2010 15:32:20 +0000 Subject: cxgb3: fix linkup issue I encountered an issue that not to link up on cxgb3 fabric. I bisected and found that this regression was introduced by 0f07c4ee8c800923ae7918c231532a9256233eed. Correct to pass phy_addr to cphy_init() at t3_xaui_direct_phy_prep(). Signed-off-by: Hiroshi Shimamoto Acked-by: Divy Le Ray Signed-off-by: David S. Miller --- drivers/net/cxgb3/ael1002.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/net/cxgb3/ael1002.c b/drivers/net/cxgb3/ael1002.c index 5248f9e0b2f4..35cd36729155 100644 --- a/drivers/net/cxgb3/ael1002.c +++ b/drivers/net/cxgb3/ael1002.c @@ -934,7 +934,7 @@ static struct cphy_ops xaui_direct_ops = { int t3_xaui_direct_phy_prep(struct cphy *phy, struct adapter *adapter, int phy_addr, const struct mdio_ops *mdio_ops) { - cphy_init(phy, adapter, MDIO_PRTAD_NONE, &xaui_direct_ops, mdio_ops, + cphy_init(phy, adapter, phy_addr, &xaui_direct_ops, mdio_ops, SUPPORTED_10000baseT_Full | SUPPORTED_AUI | SUPPORTED_TP, "10GBASE-CX4"); return 0; -- cgit v1.2.3 From a19259c3d589a014e5f47f148f74dfc44422c82b Mon Sep 17 00:00:00 2001 From: Diego Giagio Date: Sun, 18 Apr 2010 08:35:16 +0000 Subject: drivers/net/usb: Add new driver ipheth MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Add new driver to use tethering with an iPhone device. After initial submission, apply fixes to fit the new driver into the kernel standards. There are still a couple of minor (almost cosmetic-level) issues, but the driver is fully functional right now. Signed-off-by: L. Alberto Giménez Signed-off-by: Diego Giagio Signed-off-by: David S. Miller --- drivers/net/Makefile | 1 + drivers/net/usb/Kconfig | 12 + drivers/net/usb/Makefile | 1 + drivers/net/usb/ipheth.c | 568 +++++++++++++++++++++++++++++++++++++++++++++++ 4 files changed, 582 insertions(+) create mode 100644 drivers/net/usb/ipheth.c (limited to 'drivers') diff --git a/drivers/net/Makefile b/drivers/net/Makefile index a583b50d9de8..12b280afdd51 100644 --- a/drivers/net/Makefile +++ b/drivers/net/Makefile @@ -273,6 +273,7 @@ obj-$(CONFIG_USB_RTL8150) += usb/ obj-$(CONFIG_USB_HSO) += usb/ obj-$(CONFIG_USB_USBNET) += usb/ obj-$(CONFIG_USB_ZD1201) += usb/ +obj-$(CONFIG_USB_IPHETH) += usb/ obj-y += wireless/ obj-$(CONFIG_NET_TULIP) += tulip/ diff --git a/drivers/net/usb/Kconfig b/drivers/net/usb/Kconfig index ba56ce4382d9..63be4caec70e 100644 --- a/drivers/net/usb/Kconfig +++ b/drivers/net/usb/Kconfig @@ -385,4 +385,16 @@ config USB_CDC_PHONET cellular modem, as found on most Nokia handsets with the "PC suite" USB profile. +config USB_IPHETH + tristate "Apple iPhone USB Ethernet driver" + default n + ---help--- + Module used to share Internet connection (tethering) from your + iPhone (Original, 3G and 3GS) to your system. + Note that you need userspace libraries and programs that are needed + to pair your device with your system and that understand the iPhone + protocol. + + For more information: http://giagio.com/wiki/moin.cgi/iPhoneEthernetDriver + endmenu diff --git a/drivers/net/usb/Makefile b/drivers/net/usb/Makefile index 82ea62955b56..edb09c0ddf8e 100644 --- a/drivers/net/usb/Makefile +++ b/drivers/net/usb/Makefile @@ -23,4 +23,5 @@ obj-$(CONFIG_USB_NET_MCS7830) += mcs7830.o obj-$(CONFIG_USB_USBNET) += usbnet.o obj-$(CONFIG_USB_NET_INT51X1) += int51x1.o obj-$(CONFIG_USB_CDC_PHONET) += cdc-phonet.o +obj-$(CONFIG_USB_IPHETH) += ipheth.o diff --git a/drivers/net/usb/ipheth.c b/drivers/net/usb/ipheth.c new file mode 100644 index 000000000000..fd1033130a81 --- /dev/null +++ b/drivers/net/usb/ipheth.c @@ -0,0 +1,568 @@ +/* + * ipheth.c - Apple iPhone USB Ethernet driver + * + * Copyright (c) 2009 Diego Giagio + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of GIAGIO.COM nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * Alternatively, provided that this notice is retained in full, this + * software may be distributed under the terms of the GNU General + * Public License ("GPL") version 2, in which case the provisions of the + * GPL apply INSTEAD OF those given above. + * + * The provided data structures and external interfaces from this code + * are not restricted to be used by modules with a GPL compatible license. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH + * DAMAGE. + * + * + * Attention: iPhone device must be paired, otherwise it won't respond to our + * driver. For more info: http://giagio.com/wiki/moin.cgi/iPhoneEthernetDriver + * + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#define USB_VENDOR_APPLE 0x05ac +#define USB_PRODUCT_IPHONE 0x1290 +#define USB_PRODUCT_IPHONE_3G 0x1292 +#define USB_PRODUCT_IPHONE_3GS 0x1294 + +#define IPHETH_USBINTF_CLASS 255 +#define IPHETH_USBINTF_SUBCLASS 253 +#define IPHETH_USBINTF_PROTO 1 + +#define IPHETH_BUF_SIZE 1516 +#define IPHETH_TX_TIMEOUT (5 * HZ) + +#define IPHETH_INTFNUM 2 +#define IPHETH_ALT_INTFNUM 1 + +#define IPHETH_CTRL_ENDP 0x00 +#define IPHETH_CTRL_BUF_SIZE 0x40 +#define IPHETH_CTRL_TIMEOUT (5 * HZ) + +#define IPHETH_CMD_GET_MACADDR 0x00 +#define IPHETH_CMD_CARRIER_CHECK 0x45 + +#define IPHETH_CARRIER_CHECK_TIMEOUT round_jiffies_relative(1 * HZ) +#define IPHETH_CARRIER_ON 0x04 + +static struct usb_device_id ipheth_table[] = { + { USB_DEVICE_AND_INTERFACE_INFO( + USB_VENDOR_APPLE, USB_PRODUCT_IPHONE, + IPHETH_USBINTF_CLASS, IPHETH_USBINTF_SUBCLASS, + IPHETH_USBINTF_PROTO) }, + { USB_DEVICE_AND_INTERFACE_INFO( + USB_VENDOR_APPLE, USB_PRODUCT_IPHONE_3G, + IPHETH_USBINTF_CLASS, IPHETH_USBINTF_SUBCLASS, + IPHETH_USBINTF_PROTO) }, + { USB_DEVICE_AND_INTERFACE_INFO( + USB_VENDOR_APPLE, USB_PRODUCT_IPHONE_3GS, + IPHETH_USBINTF_CLASS, IPHETH_USBINTF_SUBCLASS, + IPHETH_USBINTF_PROTO) }, + { } +}; +MODULE_DEVICE_TABLE(usb, ipheth_table); + +struct ipheth_device { + struct usb_device *udev; + struct usb_interface *intf; + struct net_device *net; + struct sk_buff *tx_skb; + struct urb *tx_urb; + struct urb *rx_urb; + unsigned char *tx_buf; + unsigned char *rx_buf; + unsigned char *ctrl_buf; + u8 bulk_in; + u8 bulk_out; + struct delayed_work carrier_work; +}; + +static int ipheth_rx_submit(struct ipheth_device *dev, gfp_t mem_flags); + +static int ipheth_alloc_urbs(struct ipheth_device *iphone) +{ + struct urb *tx_urb = NULL; + struct urb *rx_urb = NULL; + u8 *tx_buf = NULL; + u8 *rx_buf = NULL; + + tx_urb = usb_alloc_urb(0, GFP_KERNEL); + if (tx_urb == NULL) + goto error; + + rx_urb = usb_alloc_urb(0, GFP_KERNEL); + if (rx_urb == NULL) + goto error; + + tx_buf = usb_buffer_alloc(iphone->udev, + IPHETH_BUF_SIZE, + GFP_KERNEL, + &tx_urb->transfer_dma); + if (tx_buf == NULL) + goto error; + + rx_buf = usb_buffer_alloc(iphone->udev, + IPHETH_BUF_SIZE, + GFP_KERNEL, + &rx_urb->transfer_dma); + if (rx_buf == NULL) + goto error; + + + iphone->tx_urb = tx_urb; + iphone->rx_urb = rx_urb; + iphone->tx_buf = tx_buf; + iphone->rx_buf = rx_buf; + return 0; + +error: + usb_buffer_free(iphone->udev, IPHETH_BUF_SIZE, rx_buf, + rx_urb->transfer_dma); + usb_buffer_free(iphone->udev, IPHETH_BUF_SIZE, tx_buf, + tx_urb->transfer_dma); + usb_free_urb(rx_urb); + usb_free_urb(tx_urb); + return -ENOMEM; +} + +static void ipheth_free_urbs(struct ipheth_device *iphone) +{ + usb_buffer_free(iphone->udev, IPHETH_BUF_SIZE, iphone->rx_buf, + iphone->rx_urb->transfer_dma); + usb_buffer_free(iphone->udev, IPHETH_BUF_SIZE, iphone->tx_buf, + iphone->tx_urb->transfer_dma); + usb_free_urb(iphone->rx_urb); + usb_free_urb(iphone->tx_urb); +} + +static void ipheth_kill_urbs(struct ipheth_device *dev) +{ + usb_kill_urb(dev->tx_urb); + usb_kill_urb(dev->rx_urb); +} + +static void ipheth_rcvbulk_callback(struct urb *urb) +{ + struct ipheth_device *dev; + struct sk_buff *skb; + int status; + char *buf; + int len; + + dev = urb->context; + if (dev == NULL) + return; + + status = urb->status; + switch (status) { + case -ENOENT: + case -ECONNRESET: + case -ESHUTDOWN: + return; + case 0: + break; + default: + err("%s: urb status: %d", __func__, urb->status); + return; + } + + len = urb->actual_length; + buf = urb->transfer_buffer; + + skb = dev_alloc_skb(NET_IP_ALIGN + len); + if (!skb) { + err("%s: dev_alloc_skb: -ENOMEM", __func__); + dev->net->stats.rx_dropped++; + return; + } + + skb_reserve(skb, NET_IP_ALIGN); + memcpy(skb_put(skb, len), buf + NET_IP_ALIGN, len - NET_IP_ALIGN); + skb->dev = dev->net; + skb->protocol = eth_type_trans(skb, dev->net); + + dev->net->stats.rx_packets++; + dev->net->stats.rx_bytes += len; + + netif_rx(skb); + ipheth_rx_submit(dev, GFP_ATOMIC); +} + +static void ipheth_sndbulk_callback(struct urb *urb) +{ + struct ipheth_device *dev; + + dev = urb->context; + if (dev == NULL) + return; + + if (urb->status != 0 && + urb->status != -ENOENT && + urb->status != -ECONNRESET && + urb->status != -ESHUTDOWN) + err("%s: urb status: %d", __func__, urb->status); + + dev_kfree_skb_irq(dev->tx_skb); + netif_wake_queue(dev->net); +} + +static int ipheth_carrier_set(struct ipheth_device *dev) +{ + struct usb_device *udev = dev->udev; + int retval; + + retval = usb_control_msg(udev, + usb_rcvctrlpipe(udev, IPHETH_CTRL_ENDP), + IPHETH_CMD_CARRIER_CHECK, /* request */ + 0xc0, /* request type */ + 0x00, /* value */ + 0x02, /* index */ + dev->ctrl_buf, IPHETH_CTRL_BUF_SIZE, + IPHETH_CTRL_TIMEOUT); + if (retval < 0) { + err("%s: usb_control_msg: %d", __func__, retval); + return retval; + } + + if (dev->ctrl_buf[0] == IPHETH_CARRIER_ON) + netif_carrier_on(dev->net); + else + netif_carrier_off(dev->net); + + return 0; +} + +static void ipheth_carrier_check_work(struct work_struct *work) +{ + struct ipheth_device *dev = container_of(work, struct ipheth_device, + carrier_work.work); + + ipheth_carrier_set(dev); + schedule_delayed_work(&dev->carrier_work, IPHETH_CARRIER_CHECK_TIMEOUT); +} + +static int ipheth_get_macaddr(struct ipheth_device *dev) +{ + struct usb_device *udev = dev->udev; + struct net_device *net = dev->net; + int retval; + + retval = usb_control_msg(udev, + usb_rcvctrlpipe(udev, IPHETH_CTRL_ENDP), + IPHETH_CMD_GET_MACADDR, /* request */ + 0xc0, /* request type */ + 0x00, /* value */ + 0x02, /* index */ + dev->ctrl_buf, + IPHETH_CTRL_BUF_SIZE, + IPHETH_CTRL_TIMEOUT); + if (retval < 0) { + err("%s: usb_control_msg: %d", __func__, retval); + } else if (retval < ETH_ALEN) { + err("%s: usb_control_msg: short packet: %d bytes", + __func__, retval); + retval = -EINVAL; + } else { + memcpy(net->dev_addr, dev->ctrl_buf, ETH_ALEN); + retval = 0; + } + + return retval; +} + +static int ipheth_rx_submit(struct ipheth_device *dev, gfp_t mem_flags) +{ + struct usb_device *udev = dev->udev; + int retval; + + usb_fill_bulk_urb(dev->rx_urb, udev, + usb_rcvbulkpipe(udev, dev->bulk_in), + dev->rx_buf, IPHETH_BUF_SIZE, + ipheth_rcvbulk_callback, + dev); + dev->rx_urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; + + retval = usb_submit_urb(dev->rx_urb, mem_flags); + if (retval) + err("%s: usb_submit_urb: %d", __func__, retval); + return retval; +} + +static int ipheth_open(struct net_device *net) +{ + struct ipheth_device *dev = netdev_priv(net); + struct usb_device *udev = dev->udev; + int retval = 0; + + usb_set_interface(udev, IPHETH_INTFNUM, IPHETH_ALT_INTFNUM); + + retval = ipheth_carrier_set(dev); + if (retval) + return retval; + + retval = ipheth_rx_submit(dev, GFP_KERNEL); + if (retval) + return retval; + + schedule_delayed_work(&dev->carrier_work, IPHETH_CARRIER_CHECK_TIMEOUT); + netif_start_queue(net); + return retval; +} + +static int ipheth_close(struct net_device *net) +{ + struct ipheth_device *dev = netdev_priv(net); + + cancel_delayed_work_sync(&dev->carrier_work); + netif_stop_queue(net); + return 0; +} + +static int ipheth_tx(struct sk_buff *skb, struct net_device *net) +{ + struct ipheth_device *dev = netdev_priv(net); + struct usb_device *udev = dev->udev; + int retval; + + /* Paranoid */ + if (skb->len > IPHETH_BUF_SIZE) { + WARN(1, "%s: skb too large: %d bytes", __func__, skb->len); + dev->net->stats.tx_dropped++; + dev_kfree_skb_irq(skb); + return NETDEV_TX_OK; + } + + memcpy(dev->tx_buf, skb->data, skb->len); + if (skb->len < IPHETH_BUF_SIZE) + memset(dev->tx_buf + skb->len, 0, IPHETH_BUF_SIZE - skb->len); + + usb_fill_bulk_urb(dev->tx_urb, udev, + usb_sndbulkpipe(udev, dev->bulk_out), + dev->tx_buf, IPHETH_BUF_SIZE, + ipheth_sndbulk_callback, + dev); + dev->tx_urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; + + retval = usb_submit_urb(dev->tx_urb, GFP_ATOMIC); + if (retval) { + err("%s: usb_submit_urb: %d", __func__, retval); + dev->net->stats.tx_errors++; + dev_kfree_skb_irq(skb); + } else { + dev->tx_skb = skb; + + dev->net->stats.tx_packets++; + dev->net->stats.tx_bytes += skb->len; + netif_stop_queue(net); + } + + return NETDEV_TX_OK; +} + +static void ipheth_tx_timeout(struct net_device *net) +{ + struct ipheth_device *dev = netdev_priv(net); + + err("%s: TX timeout", __func__); + dev->net->stats.tx_errors++; + usb_unlink_urb(dev->tx_urb); +} + +static struct net_device_stats *ipheth_stats(struct net_device *net) +{ + struct ipheth_device *dev = netdev_priv(net); + return &dev->net->stats; +} + +static u32 ipheth_ethtool_op_get_link(struct net_device *net) +{ + struct ipheth_device *dev = netdev_priv(net); + return netif_carrier_ok(dev->net); +} + +static struct ethtool_ops ops = { + .get_link = ipheth_ethtool_op_get_link +}; + +static const struct net_device_ops ipheth_netdev_ops = { + .ndo_open = &ipheth_open, + .ndo_stop = &ipheth_close, + .ndo_start_xmit = &ipheth_tx, + .ndo_tx_timeout = &ipheth_tx_timeout, + .ndo_get_stats = &ipheth_stats, +}; + +static struct device_type ipheth_type = { + .name = "wwan", +}; + +static int ipheth_probe(struct usb_interface *intf, + const struct usb_device_id *id) +{ + struct usb_device *udev = interface_to_usbdev(intf); + struct usb_host_interface *hintf; + struct usb_endpoint_descriptor *endp; + struct ipheth_device *dev; + struct net_device *netdev; + int i; + int retval; + + netdev = alloc_etherdev(sizeof(struct ipheth_device)); + if (!netdev) + return -ENOMEM; + + netdev->netdev_ops = &ipheth_netdev_ops; + netdev->watchdog_timeo = IPHETH_TX_TIMEOUT; + strcpy(netdev->name, "wwan%d"); + + dev = netdev_priv(netdev); + dev->udev = udev; + dev->net = netdev; + dev->intf = intf; + + /* Set up endpoints */ + hintf = usb_altnum_to_altsetting(intf, IPHETH_ALT_INTFNUM); + if (hintf == NULL) { + retval = -ENODEV; + err("Unable to find alternate settings interface"); + goto err_endpoints; + } + + for (i = 0; i < hintf->desc.bNumEndpoints; i++) { + endp = &hintf->endpoint[i].desc; + if (usb_endpoint_is_bulk_in(endp)) + dev->bulk_in = endp->bEndpointAddress; + else if (usb_endpoint_is_bulk_out(endp)) + dev->bulk_out = endp->bEndpointAddress; + } + if (!(dev->bulk_in && dev->bulk_out)) { + retval = -ENODEV; + err("Unable to find endpoints"); + goto err_endpoints; + } + + dev->ctrl_buf = kmalloc(IPHETH_CTRL_BUF_SIZE, GFP_KERNEL); + if (dev->ctrl_buf == NULL) { + retval = -ENOMEM; + goto err_alloc_ctrl_buf; + } + + retval = ipheth_get_macaddr(dev); + if (retval) + goto err_get_macaddr; + + INIT_DELAYED_WORK(&dev->carrier_work, ipheth_carrier_check_work); + + retval = ipheth_alloc_urbs(dev); + if (retval) { + err("error allocating urbs: %d", retval); + goto err_alloc_urbs; + } + + usb_set_intfdata(intf, dev); + + SET_NETDEV_DEV(netdev, &intf->dev); + SET_ETHTOOL_OPS(netdev, &ops); + SET_NETDEV_DEVTYPE(netdev, &ipheth_type); + + retval = register_netdev(netdev); + if (retval) { + err("error registering netdev: %d", retval); + retval = -EIO; + goto err_register_netdev; + } + + dev_info(&intf->dev, "Apple iPhone USB Ethernet device attached\n"); + return 0; + +err_register_netdev: + ipheth_free_urbs(dev); +err_alloc_urbs: +err_get_macaddr: +err_alloc_ctrl_buf: + kfree(dev->ctrl_buf); +err_endpoints: + free_netdev(netdev); + return retval; +} + +static void ipheth_disconnect(struct usb_interface *intf) +{ + struct ipheth_device *dev; + + dev = usb_get_intfdata(intf); + if (dev != NULL) { + unregister_netdev(dev->net); + ipheth_kill_urbs(dev); + ipheth_free_urbs(dev); + kfree(dev->ctrl_buf); + free_netdev(dev->net); + } + usb_set_intfdata(intf, NULL); + dev_info(&intf->dev, "Apple iPhone USB Ethernet now disconnected\n"); +} + +static struct usb_driver ipheth_driver = { + .name = "ipheth", + .probe = ipheth_probe, + .disconnect = ipheth_disconnect, + .id_table = ipheth_table, +}; + +static int __init ipheth_init(void) +{ + int retval; + + retval = usb_register(&ipheth_driver); + if (retval) { + err("usb_register failed: %d", retval); + return retval; + } + return 0; +} + +static void __exit ipheth_exit(void) +{ + usb_deregister(&ipheth_driver); +} + +module_init(ipheth_init); +module_exit(ipheth_exit); + +MODULE_AUTHOR("Diego Giagio "); +MODULE_DESCRIPTION("Apple iPhone USB Ethernet driver"); +MODULE_LICENSE("Dual BSD/GPL"); -- cgit v1.2.3 From 3b1fd3e55a39824e68bc8dd055d14892476e3671 Mon Sep 17 00:00:00 2001 From: Anton Vorontsov Date: Fri, 23 Apr 2010 07:12:35 +0000 Subject: fsl_pq_mdio: Fix kernel oops during OF address translation Old P1020RDB device trees were not specifing tbipa address for MDIO nodes, which is now causing this kernel oops: ... eth2: TX BD ring size for Q[6]: 256 eth2: TX BD ring size for Q[7]: 256 Unable to handle kernel paging request for data at address 0x00000000 Faulting instruction address: 0xc0015504 Oops: Kernel access of bad area, sig: 11 [#1] ... NIP [c0015504] memcpy+0x3c/0x9c LR [c000a9f8] __of_translate_address+0xfc/0x21c Call Trace: [df839e00] [c000a94c] __of_translate_address+0x50/0x21c (unreliable) [df839e50] [c01a33e8] get_gfar_tbipa+0xb0/0xe0 ... The old device trees are buggy, though having a dead ethernet is better than a dead kernel, so fix the issue by using of_iomap(). Also, a somewhat similar issue exist in the probe() routine, though there the oops is only a possibility. Nonetheless, fix it too. Signed-off-by: Anton Vorontsov Signed-off-by: David S. Miller --- drivers/net/fsl_pq_mdio.c | 20 ++++++++++++++------ 1 file changed, 14 insertions(+), 6 deletions(-) (limited to 'drivers') diff --git a/drivers/net/fsl_pq_mdio.c b/drivers/net/fsl_pq_mdio.c index d5160edf2fcf..3acac5f930c8 100644 --- a/drivers/net/fsl_pq_mdio.c +++ b/drivers/net/fsl_pq_mdio.c @@ -205,8 +205,6 @@ static int fsl_pq_mdio_find_free(struct mii_bus *new_bus) static u32 __iomem *get_gfar_tbipa(struct fsl_pq_mdio __iomem *regs, struct device_node *np) { struct gfar __iomem *enet_regs; - u32 __iomem *ioremap_tbipa; - u64 addr, size; /* * This is mildly evil, but so is our hardware for doing this. @@ -220,9 +218,7 @@ static u32 __iomem *get_gfar_tbipa(struct fsl_pq_mdio __iomem *regs, struct devi return &enet_regs->tbipa; } else if (of_device_is_compatible(np, "fsl,etsec2-mdio") || of_device_is_compatible(np, "fsl,etsec2-tbi")) { - addr = of_translate_address(np, of_get_address(np, 1, &size, NULL)); - ioremap_tbipa = ioremap(addr, size); - return ioremap_tbipa; + return of_iomap(np, 1); } else return NULL; } @@ -279,6 +275,7 @@ static int fsl_pq_mdio_probe(struct of_device *ofdev, u32 __iomem *tbipa; struct mii_bus *new_bus; int tbiaddr = -1; + const u32 *addrp; u64 addr = 0, size = 0; int err = 0; @@ -297,8 +294,19 @@ static int fsl_pq_mdio_probe(struct of_device *ofdev, new_bus->priv = priv; fsl_pq_mdio_bus_name(new_bus->id, np); + addrp = of_get_address(np, 0, &size, NULL); + if (!addrp) { + err = -EINVAL; + goto err_free_bus; + } + /* Set the PHY base address */ - addr = of_translate_address(np, of_get_address(np, 0, &size, NULL)); + addr = of_translate_address(np, addrp); + if (addr == OF_BAD_ADDR) { + err = -EINVAL; + goto err_free_bus; + } + map = ioremap(addr, size); if (!map) { err = -ENOMEM; -- cgit v1.2.3 From 7ce97d4f78b62e3af24cdd4df953d777e7efb2f6 Mon Sep 17 00:00:00 2001 From: Anton Vorontsov Date: Fri, 23 Apr 2010 07:12:44 +0000 Subject: gianfar: Fix potential oops during OF address translation gianfar driver may pass NULL pointer to the of_translate_address(), which may lead to a kernel oops. Fix this by using of_iomap(), which is also much simpler and shorter. Signed-off-by: Anton Vorontsov Signed-off-by: David S. Miller --- drivers/net/gianfar.c | 6 +----- 1 file changed, 1 insertion(+), 5 deletions(-) (limited to 'drivers') diff --git a/drivers/net/gianfar.c b/drivers/net/gianfar.c index 080d1cea5b26..df49af382159 100644 --- a/drivers/net/gianfar.c +++ b/drivers/net/gianfar.c @@ -549,12 +549,8 @@ static int gfar_parse_group(struct device_node *np, struct gfar_private *priv, const char *model) { u32 *queue_mask; - u64 addr, size; - - addr = of_translate_address(np, - of_get_address(np, 0, &size, NULL)); - priv->gfargrp[priv->num_grps].regs = ioremap(addr, size); + priv->gfargrp[priv->num_grps].regs = of_iomap(np, 0); if (!priv->gfargrp[priv->num_grps].regs) return -ENOMEM; -- cgit v1.2.3 From 401da6aea31ef69c2fcd260382adabdcf7ce820a Mon Sep 17 00:00:00 2001 From: Alan Cox Date: Sat, 24 Apr 2010 21:09:29 -0700 Subject: e100: Fix the TX workqueue race Nothing stops the workqueue being left to run in parallel with close or a few other operations. This causes double unmaps and the like. See kerneloops.org #1041230 for an example Signed-off-by: Alan Cox Signed-off-by: David S. Miller --- drivers/net/e100.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/net/e100.c b/drivers/net/e100.c index b997e578e58f..791080303db1 100644 --- a/drivers/net/e100.c +++ b/drivers/net/e100.c @@ -166,6 +166,7 @@ #include #include #include +#include #include @@ -2265,8 +2266,13 @@ static void e100_tx_timeout_task(struct work_struct *work) DPRINTK(TX_ERR, DEBUG, "scb.status=0x%02X\n", ioread8(&nic->csr->scb.status)); - e100_down(netdev_priv(netdev)); - e100_up(netdev_priv(netdev)); + + rtnl_lock(); + if (netif_running(netdev)) { + e100_down(netdev_priv(netdev)); + e100_up(netdev_priv(netdev)); + } + rtnl_unlock(); } static int e100_loopback_test(struct nic *nic, enum loopback loopback_mode) -- cgit v1.2.3 From dc8bf1b1a6edfc92465526de19772061302f0929 Mon Sep 17 00:00:00 2001 From: Andre Detsch Date: Mon, 26 Apr 2010 07:27:07 +0000 Subject: tg3: Fix INTx fallback when MSI fails tg3: Fix INTx fallback when MSI fails MSI setup changes the value of irq_vec in struct tg3 *tp. This attribute must be taken into account and restored before we try to do a new request_irq for INTx fallback. In powerpc, the original code was leading to an EINVAL return within request_irq, because the driver was trying to use the disabled MSI virtual irq number instead of tp->pdev->irq. Signed-off-by: Andre Detsch Acked-by: Michael Chan Signed-off-by: David S. Miller --- drivers/net/tg3.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/net/tg3.c b/drivers/net/tg3.c index 22cf1c446de3..ecc41cffb470 100644 --- a/drivers/net/tg3.c +++ b/drivers/net/tg3.c @@ -8633,6 +8633,7 @@ static int tg3_test_msi(struct tg3 *tp) pci_disable_msi(tp->pdev); tp->tg3_flags2 &= ~TG3_FLG2_USING_MSI; + tp->napi[0].irq_vec = tp->pdev->irq; err = tg3_request_irq(tp, 0); if (err) -- cgit v1.2.3 From 87aeec767e1de60d7f76abbb44df5372b0932b7b Mon Sep 17 00:00:00 2001 From: françois romieu Date: Mon, 26 Apr 2010 11:42:06 +0000 Subject: r8169: failure to enable mwi should not be fatal Few (6) network drivers enable mwi explicitly. Fewer worry about a failure. It is not a fix but it should avoid some annoyance like http://bugzilla.kernel.org/show_bug.cgi?id=15454 Signed-off-by: Francois Romieu Cc: Conrad Kostecki Signed-off-by: David S. Miller --- drivers/net/r8169.c | 27 +++++++++++++-------------- 1 file changed, 13 insertions(+), 14 deletions(-) (limited to 'drivers') diff --git a/drivers/net/r8169.c b/drivers/net/r8169.c index dbb1f5a1824c..2b54389c8f57 100644 --- a/drivers/net/r8169.c +++ b/drivers/net/r8169.c @@ -2759,6 +2759,7 @@ static void rtl8169_release_board(struct pci_dev *pdev, struct net_device *dev, { iounmap(ioaddr); pci_release_regions(pdev); + pci_clear_mwi(pdev); pci_disable_device(pdev); free_netdev(dev); } @@ -3014,9 +3015,8 @@ rtl8169_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) goto err_out_free_dev_1; } - rc = pci_set_mwi(pdev); - if (rc < 0) - goto err_out_disable_2; + if (pci_set_mwi(pdev) < 0) + netif_info(tp, probe, dev, "Mem-Wr-Inval unavailable\n"); /* make sure PCI base addr 1 is MMIO */ if (!(pci_resource_flags(pdev, region) & IORESOURCE_MEM)) { @@ -3024,7 +3024,7 @@ rtl8169_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) "region #%d not an MMIO resource, aborting\n", region); rc = -ENODEV; - goto err_out_mwi_3; + goto err_out_mwi_2; } /* check for weird/broken PCI region reporting */ @@ -3032,13 +3032,13 @@ rtl8169_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) netif_err(tp, probe, dev, "Invalid PCI region size(s), aborting\n"); rc = -ENODEV; - goto err_out_mwi_3; + goto err_out_mwi_2; } rc = pci_request_regions(pdev, MODULENAME); if (rc < 0) { netif_err(tp, probe, dev, "could not request regions\n"); - goto err_out_mwi_3; + goto err_out_mwi_2; } tp->cp_cmd = PCIMulRW | RxChkSum; @@ -3051,7 +3051,7 @@ rtl8169_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)); if (rc < 0) { netif_err(tp, probe, dev, "DMA configuration failed\n"); - goto err_out_free_res_4; + goto err_out_free_res_3; } } @@ -3060,7 +3060,7 @@ rtl8169_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) if (!ioaddr) { netif_err(tp, probe, dev, "cannot remap MMIO, aborting\n"); rc = -EIO; - goto err_out_free_res_4; + goto err_out_free_res_3; } tp->pcie_cap = pci_find_capability(pdev, PCI_CAP_ID_EXP); @@ -3102,7 +3102,7 @@ rtl8169_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) if (i == ARRAY_SIZE(rtl_chip_info)) { dev_err(&pdev->dev, "driver bug, MAC version not found in rtl_chip_info\n"); - goto err_out_msi_5; + goto err_out_msi_4; } tp->chipset = i; @@ -3167,7 +3167,7 @@ rtl8169_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) rc = register_netdev(dev); if (rc < 0) - goto err_out_msi_5; + goto err_out_msi_4; pci_set_drvdata(pdev, dev); @@ -3190,14 +3190,13 @@ rtl8169_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) out: return rc; -err_out_msi_5: +err_out_msi_4: rtl_disable_msi(pdev, tp); iounmap(ioaddr); -err_out_free_res_4: +err_out_free_res_3: pci_release_regions(pdev); -err_out_mwi_3: +err_out_mwi_2: pci_clear_mwi(pdev); -err_out_disable_2: pci_disable_device(pdev); err_out_free_dev_1: free_netdev(dev); -- cgit v1.2.3 From 908ba2bfd22253f26fa910cd855e4ccffb1467d0 Mon Sep 17 00:00:00 2001 From: françois romieu Date: Mon, 26 Apr 2010 11:42:58 +0000 Subject: r8169: more broken register writes workaround 78f1cd02457252e1ffbc6caa44a17424a45286b8 ("fix broken register writes") does not work for Al Viro's r8169 (XID 18000000). Signed-off-by: Francois Romieu Signed-off-by: David S. Miller --- drivers/net/r8169.c | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'drivers') diff --git a/drivers/net/r8169.c b/drivers/net/r8169.c index 2b54389c8f57..4748c21eb72e 100644 --- a/drivers/net/r8169.c +++ b/drivers/net/r8169.c @@ -2826,8 +2826,13 @@ static void rtl_rar_set(struct rtl8169_private *tp, u8 *addr) spin_lock_irq(&tp->lock); RTL_W8(Cfg9346, Cfg9346_Unlock); + RTL_W32(MAC4, high); + RTL_R32(MAC4); + RTL_W32(MAC0, low); + RTL_R32(MAC0); + RTL_W8(Cfg9346, Cfg9346_Lock); spin_unlock_irq(&tp->lock); -- cgit v1.2.3 From 61fac744dddb22d99c7b12250bc9bada7866df08 Mon Sep 17 00:00:00 2001 From: Peter Waskiewicz Date: Tue, 27 Apr 2010 00:38:15 +0000 Subject: ixgbe: Power down PHY during driver resets The PHY laser is still on during driver init. It's allowing garbage to hit our FIFO, which eventually can cause the entire device to die. Power down the laser while setting up the device, and re-enable the laser before getting link. Signed-off-by: Peter P Waskiewicz Jr Signed-off-by: Jeff Kirsher Signed-off-by: David S. Miller --- drivers/net/ixgbe/ixgbe_82599.c | 62 +++++++++++++++++++++++++++++++---------- drivers/net/ixgbe/ixgbe_main.c | 22 ++++++++------- drivers/net/ixgbe/ixgbe_type.h | 2 ++ 3 files changed, 62 insertions(+), 24 deletions(-) (limited to 'drivers') diff --git a/drivers/net/ixgbe/ixgbe_82599.c b/drivers/net/ixgbe/ixgbe_82599.c index b405a00817c6..12fc0e7ba2ca 100644 --- a/drivers/net/ixgbe/ixgbe_82599.c +++ b/drivers/net/ixgbe/ixgbe_82599.c @@ -39,6 +39,8 @@ #define IXGBE_82599_MC_TBL_SIZE 128 #define IXGBE_82599_VFT_TBL_SIZE 128 +void ixgbe_disable_tx_laser_multispeed_fiber(struct ixgbe_hw *hw); +void ixgbe_enable_tx_laser_multispeed_fiber(struct ixgbe_hw *hw); void ixgbe_flap_tx_laser_multispeed_fiber(struct ixgbe_hw *hw); s32 ixgbe_setup_mac_link_multispeed_fiber(struct ixgbe_hw *hw, ixgbe_link_speed speed, @@ -69,8 +71,14 @@ static void ixgbe_init_mac_link_ops_82599(struct ixgbe_hw *hw) if (hw->phy.multispeed_fiber) { /* Set up dual speed SFP+ support */ mac->ops.setup_link = &ixgbe_setup_mac_link_multispeed_fiber; + mac->ops.disable_tx_laser = + &ixgbe_disable_tx_laser_multispeed_fiber; + mac->ops.enable_tx_laser = + &ixgbe_enable_tx_laser_multispeed_fiber; mac->ops.flap_tx_laser = &ixgbe_flap_tx_laser_multispeed_fiber; } else { + mac->ops.disable_tx_laser = NULL; + mac->ops.enable_tx_laser = NULL; mac->ops.flap_tx_laser = NULL; if ((mac->ops.get_media_type(hw) == ixgbe_media_type_backplane) && @@ -415,6 +423,44 @@ s32 ixgbe_start_mac_link_82599(struct ixgbe_hw *hw, return status; } + /** + * ixgbe_disable_tx_laser_multispeed_fiber - Disable Tx laser + * @hw: pointer to hardware structure + * + * The base drivers may require better control over SFP+ module + * PHY states. This includes selectively shutting down the Tx + * laser on the PHY, effectively halting physical link. + **/ +void ixgbe_disable_tx_laser_multispeed_fiber(struct ixgbe_hw *hw) +{ + u32 esdp_reg = IXGBE_READ_REG(hw, IXGBE_ESDP); + + /* Disable tx laser; allow 100us to go dark per spec */ + esdp_reg |= IXGBE_ESDP_SDP3; + IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp_reg); + IXGBE_WRITE_FLUSH(hw); + udelay(100); +} + +/** + * ixgbe_enable_tx_laser_multispeed_fiber - Enable Tx laser + * @hw: pointer to hardware structure + * + * The base drivers may require better control over SFP+ module + * PHY states. This includes selectively turning on the Tx + * laser on the PHY, effectively starting physical link. + **/ +void ixgbe_enable_tx_laser_multispeed_fiber(struct ixgbe_hw *hw) +{ + u32 esdp_reg = IXGBE_READ_REG(hw, IXGBE_ESDP); + + /* Enable tx laser; allow 100ms to light up */ + esdp_reg &= ~IXGBE_ESDP_SDP3; + IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp_reg); + IXGBE_WRITE_FLUSH(hw); + msleep(100); +} + /** * ixgbe_flap_tx_laser_multispeed_fiber - Flap Tx laser * @hw: pointer to hardware structure @@ -429,23 +475,11 @@ s32 ixgbe_start_mac_link_82599(struct ixgbe_hw *hw, **/ void ixgbe_flap_tx_laser_multispeed_fiber(struct ixgbe_hw *hw) { - u32 esdp_reg = IXGBE_READ_REG(hw, IXGBE_ESDP); - hw_dbg(hw, "ixgbe_flap_tx_laser_multispeed_fiber\n"); if (hw->mac.autotry_restart) { - /* Disable tx laser; allow 100us to go dark per spec */ - esdp_reg |= IXGBE_ESDP_SDP3; - IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp_reg); - IXGBE_WRITE_FLUSH(hw); - udelay(100); - - /* Enable tx laser; allow 100ms to light up */ - esdp_reg &= ~IXGBE_ESDP_SDP3; - IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp_reg); - IXGBE_WRITE_FLUSH(hw); - msleep(100); - + ixgbe_disable_tx_laser_multispeed_fiber(hw); + ixgbe_enable_tx_laser_multispeed_fiber(hw); hw->mac.autotry_restart = false; } } diff --git a/drivers/net/ixgbe/ixgbe_main.c b/drivers/net/ixgbe/ixgbe_main.c index 8f677cb86290..6c00ee493a3b 100644 --- a/drivers/net/ixgbe/ixgbe_main.c +++ b/drivers/net/ixgbe/ixgbe_main.c @@ -2982,6 +2982,10 @@ static int ixgbe_up_complete(struct ixgbe_adapter *adapter) else ixgbe_configure_msi_and_legacy(adapter); + /* enable the optics */ + if (hw->phy.multispeed_fiber) + hw->mac.ops.enable_tx_laser(hw); + clear_bit(__IXGBE_DOWN, &adapter->state); ixgbe_napi_enable_all(adapter); @@ -3243,6 +3247,10 @@ void ixgbe_down(struct ixgbe_adapter *adapter) /* signal that we are down to the interrupt handler */ set_bit(__IXGBE_DOWN, &adapter->state); + /* power down the optics */ + if (hw->phy.multispeed_fiber) + hw->mac.ops.disable_tx_laser(hw); + /* disable receive for all VFs and wait one second */ if (adapter->num_vfs) { /* ping all the active vfs to let them know we are going down */ @@ -6253,6 +6261,10 @@ static int __devinit ixgbe_probe(struct pci_dev *pdev, goto err_eeprom; } + /* power down the optics */ + if (hw->phy.multispeed_fiber) + hw->mac.ops.disable_tx_laser(hw); + init_timer(&adapter->watchdog_timer); adapter->watchdog_timer.function = &ixgbe_watchdog; adapter->watchdog_timer.data = (unsigned long)adapter; @@ -6400,16 +6412,6 @@ static void __devexit ixgbe_remove(struct pci_dev *pdev) del_timer_sync(&adapter->sfp_timer); cancel_work_sync(&adapter->watchdog_task); cancel_work_sync(&adapter->sfp_task); - if (adapter->hw.phy.multispeed_fiber) { - struct ixgbe_hw *hw = &adapter->hw; - /* - * Restart clause 37 autoneg, disable and re-enable - * the tx laser, to clear & alert the link partner - * that it needs to restart autotry - */ - hw->mac.autotry_restart = true; - hw->mac.ops.flap_tx_laser(hw); - } cancel_work_sync(&adapter->multispeed_fiber_task); cancel_work_sync(&adapter->sfp_config_module_task); if (adapter->flags & IXGBE_FLAG_FDIR_HASH_CAPABLE || diff --git a/drivers/net/ixgbe/ixgbe_type.h b/drivers/net/ixgbe/ixgbe_type.h index 4ec6dc1a5b75..534affcc38ca 100644 --- a/drivers/net/ixgbe/ixgbe_type.h +++ b/drivers/net/ixgbe/ixgbe_type.h @@ -2398,6 +2398,8 @@ struct ixgbe_mac_operations { s32 (*enable_rx_dma)(struct ixgbe_hw *, u32); /* Link */ + void (*disable_tx_laser)(struct ixgbe_hw *); + void (*enable_tx_laser)(struct ixgbe_hw *); void (*flap_tx_laser)(struct ixgbe_hw *); s32 (*setup_link)(struct ixgbe_hw *, ixgbe_link_speed, bool, bool); s32 (*check_link)(struct ixgbe_hw *, ixgbe_link_speed *, bool *, bool); -- cgit v1.2.3 From 6f461f6c7c961f0b1b73c0f27becf472a0ac606b Mon Sep 17 00:00:00 2001 From: Bruce Allan Date: Tue, 27 Apr 2010 03:33:04 +0000 Subject: e1000e: enable/disable ASPM L0s and L1 and ERT according to hardware errata Prompted by a previous patch submitted by Matthew Garret , further digging into errata documentation reveals the current enabling or disabling of ASPM L0s and L1 states for certain parts supported by this driver are incorrect. 82571 and 82572 should always disable L1. For standard frames, 82573/82574/82583 can enable L1 but L0s must be disabled, and for jumbo frames 82573/82574 must disable L1. This allows for some parts to enable L1 in certain configurations leading to better power savings. Also according to the same errata, Early Receive (ERT) should be disabled on 82573 when using jumbo frames. Cc: Matthew Garret Signed-off-by: Bruce Allan Signed-off-by: Jeff Kirsher Signed-off-by: David S. Miller --- drivers/net/e1000e/82571.c | 20 ++++++------- drivers/net/e1000e/e1000.h | 5 +++- drivers/net/e1000e/netdev.c | 70 +++++++++++++++++++++++++++------------------ 3 files changed, 55 insertions(+), 40 deletions(-) (limited to 'drivers') diff --git a/drivers/net/e1000e/82571.c b/drivers/net/e1000e/82571.c index 712ccc66ba25..90155552ea09 100644 --- a/drivers/net/e1000e/82571.c +++ b/drivers/net/e1000e/82571.c @@ -336,7 +336,6 @@ static s32 e1000_get_variants_82571(struct e1000_adapter *adapter) struct e1000_hw *hw = &adapter->hw; static int global_quad_port_a; /* global port a indication */ struct pci_dev *pdev = adapter->pdev; - u16 eeprom_data = 0; int is_port_b = er32(STATUS) & E1000_STATUS_FUNC_1; s32 rc; @@ -387,16 +386,15 @@ static s32 e1000_get_variants_82571(struct e1000_adapter *adapter) if (pdev->device == E1000_DEV_ID_82571EB_SERDES_QUAD) adapter->flags &= ~FLAG_HAS_WOL; break; - case e1000_82573: + case e1000_82574: + case e1000_82583: + /* Disable ASPM L0s due to hardware errata */ + e1000e_disable_aspm(adapter->pdev, PCIE_LINK_STATE_L0S); + if (pdev->device == E1000_DEV_ID_82573L) { - if (e1000_read_nvm(&adapter->hw, NVM_INIT_3GIO_3, 1, - &eeprom_data) < 0) - break; - if (!(eeprom_data & NVM_WORD1A_ASPM_MASK)) { - adapter->flags |= FLAG_HAS_JUMBO_FRAMES; - adapter->max_hw_frame_size = DEFAULT_JUMBO; - } + adapter->flags |= FLAG_HAS_JUMBO_FRAMES; + adapter->max_hw_frame_size = DEFAULT_JUMBO; } break; default: @@ -1792,6 +1790,7 @@ struct e1000_info e1000_82571_info = { | FLAG_RESET_OVERWRITES_LAA /* errata */ | FLAG_TARC_SPEED_MODE_BIT /* errata */ | FLAG_APME_CHECK_PORT_B, + .flags2 = FLAG2_DISABLE_ASPM_L1, /* errata 13 */ .pba = 38, .max_hw_frame_size = DEFAULT_JUMBO, .get_variants = e1000_get_variants_82571, @@ -1809,6 +1808,7 @@ struct e1000_info e1000_82572_info = { | FLAG_RX_CSUM_ENABLED | FLAG_HAS_CTRLEXT_ON_LOAD | FLAG_TARC_SPEED_MODE_BIT, /* errata */ + .flags2 = FLAG2_DISABLE_ASPM_L1, /* errata 13 */ .pba = 38, .max_hw_frame_size = DEFAULT_JUMBO, .get_variants = e1000_get_variants_82571, @@ -1820,13 +1820,11 @@ struct e1000_info e1000_82572_info = { struct e1000_info e1000_82573_info = { .mac = e1000_82573, .flags = FLAG_HAS_HW_VLAN_FILTER - | FLAG_HAS_JUMBO_FRAMES | FLAG_HAS_WOL | FLAG_APME_IN_CTRL3 | FLAG_RX_CSUM_ENABLED | FLAG_HAS_SMART_POWER_DOWN | FLAG_HAS_AMT - | FLAG_HAS_ERT | FLAG_HAS_SWSM_ON_LOAD, .pba = 20, .max_hw_frame_size = ETH_FRAME_LEN + ETH_FCS_LEN, diff --git a/drivers/net/e1000e/e1000.h b/drivers/net/e1000e/e1000.h index 118bdf483593..ee32b9b27a9f 100644 --- a/drivers/net/e1000e/e1000.h +++ b/drivers/net/e1000e/e1000.h @@ -37,6 +37,7 @@ #include #include #include +#include #include "hw.h" @@ -374,7 +375,7 @@ struct e1000_adapter { struct e1000_info { enum e1000_mac_type mac; unsigned int flags; - unsigned int flags2; + unsigned int flags2; u32 pba; u32 max_hw_frame_size; s32 (*get_variants)(struct e1000_adapter *); @@ -421,6 +422,7 @@ struct e1000_info { #define FLAG2_CRC_STRIPPING (1 << 0) #define FLAG2_HAS_PHY_WAKEUP (1 << 1) #define FLAG2_IS_DISCARDING (1 << 2) +#define FLAG2_DISABLE_ASPM_L1 (1 << 3) #define E1000_RX_DESC_PS(R, i) \ (&(((union e1000_rx_desc_packet_split *)((R).desc))[i])) @@ -461,6 +463,7 @@ extern void e1000e_update_stats(struct e1000_adapter *adapter); extern bool e1000e_has_link(struct e1000_adapter *adapter); extern void e1000e_set_interrupt_capability(struct e1000_adapter *adapter); extern void e1000e_reset_interrupt_capability(struct e1000_adapter *adapter); +extern void e1000e_disable_aspm(struct pci_dev *pdev, u16 state); extern unsigned int copybreak; diff --git a/drivers/net/e1000e/netdev.c b/drivers/net/e1000e/netdev.c index 73d43c53015a..fb8fc7d1b50d 100644 --- a/drivers/net/e1000e/netdev.c +++ b/drivers/net/e1000e/netdev.c @@ -4283,6 +4283,14 @@ static int e1000_change_mtu(struct net_device *netdev, int new_mtu) return -EINVAL; } + /* 82573 Errata 17 */ + if (((adapter->hw.mac.type == e1000_82573) || + (adapter->hw.mac.type == e1000_82574)) && + (max_frame > ETH_FRAME_LEN + ETH_FCS_LEN)) { + adapter->flags2 |= FLAG2_DISABLE_ASPM_L1; + e1000e_disable_aspm(adapter->pdev, PCIE_LINK_STATE_L1); + } + while (test_and_set_bit(__E1000_RESETTING, &adapter->state)) msleep(1); /* e1000e_down -> e1000e_reset dependent on max_frame_size & mtu */ @@ -4605,29 +4613,39 @@ static void e1000_complete_shutdown(struct pci_dev *pdev, bool sleep, } } -static void e1000e_disable_l1aspm(struct pci_dev *pdev) +#ifdef CONFIG_PCIEASPM +static void __e1000e_disable_aspm(struct pci_dev *pdev, u16 state) +{ + pci_disable_link_state(pdev, state); +} +#else +static void __e1000e_disable_aspm(struct pci_dev *pdev, u16 state) { int pos; - u16 val; + u16 reg16; /* - * 82573 workaround - disable L1 ASPM on mobile chipsets - * - * L1 ASPM on various mobile (ich7) chipsets do not behave properly - * resulting in lost data or garbage information on the pci-e link - * level. This could result in (false) bad EEPROM checksum errors, - * long ping times (up to 2s) or even a system freeze/hang. - * - * Unfortunately this feature saves about 1W power consumption when - * active. + * Both device and parent should have the same ASPM setting. + * Disable ASPM in downstream component first and then upstream. */ - pos = pci_find_capability(pdev, PCI_CAP_ID_EXP); - pci_read_config_word(pdev, pos + PCI_EXP_LNKCTL, &val); - if (val & 0x2) { - dev_warn(&pdev->dev, "Disabling L1 ASPM\n"); - val &= ~0x2; - pci_write_config_word(pdev, pos + PCI_EXP_LNKCTL, val); - } + pos = pci_pcie_cap(pdev); + pci_read_config_word(pdev, pos + PCI_EXP_LNKCTL, ®16); + reg16 &= ~state; + pci_write_config_word(pdev, pos + PCI_EXP_LNKCTL, reg16); + + pos = pci_pcie_cap(pdev->bus->self); + pci_read_config_word(pdev->bus->self, pos + PCI_EXP_LNKCTL, ®16); + reg16 &= ~state; + pci_write_config_word(pdev->bus->self, pos + PCI_EXP_LNKCTL, reg16); +} +#endif +void e1000e_disable_aspm(struct pci_dev *pdev, u16 state) +{ + dev_info(&pdev->dev, "Disabling ASPM %s %s\n", + (state & PCIE_LINK_STATE_L0S) ? "L0s" : "", + (state & PCIE_LINK_STATE_L1) ? "L1" : ""); + + __e1000e_disable_aspm(pdev, state); } #ifdef CONFIG_PM @@ -4653,7 +4671,8 @@ static int e1000_resume(struct pci_dev *pdev) pci_set_power_state(pdev, PCI_D0); pci_restore_state(pdev); pci_save_state(pdev); - e1000e_disable_l1aspm(pdev); + if (adapter->flags2 & FLAG2_DISABLE_ASPM_L1) + e1000e_disable_aspm(pdev, PCIE_LINK_STATE_L1); err = pci_enable_device_mem(pdev); if (err) { @@ -4795,7 +4814,8 @@ static pci_ers_result_t e1000_io_slot_reset(struct pci_dev *pdev) int err; pci_ers_result_t result; - e1000e_disable_l1aspm(pdev); + if (adapter->flags2 & FLAG2_DISABLE_ASPM_L1) + e1000e_disable_aspm(pdev, PCIE_LINK_STATE_L1); err = pci_enable_device_mem(pdev); if (err) { dev_err(&pdev->dev, @@ -4889,13 +4909,6 @@ static void e1000_eeprom_checks(struct e1000_adapter *adapter) dev_warn(&adapter->pdev->dev, "Warning: detected DSPD enabled in EEPROM\n"); } - - ret_val = e1000_read_nvm(hw, NVM_INIT_3GIO_3, 1, &buf); - if (!ret_val && (le16_to_cpu(buf) & (3 << 2))) { - /* ASPM enable */ - dev_warn(&adapter->pdev->dev, - "Warning: detected ASPM enabled in EEPROM\n"); - } } static const struct net_device_ops e1000e_netdev_ops = { @@ -4944,7 +4957,8 @@ static int __devinit e1000_probe(struct pci_dev *pdev, u16 eeprom_data = 0; u16 eeprom_apme_mask = E1000_EEPROM_APME; - e1000e_disable_l1aspm(pdev); + if (ei->flags2 & FLAG2_DISABLE_ASPM_L1) + e1000e_disable_aspm(pdev, PCIE_LINK_STATE_L1); err = pci_enable_device_mem(pdev); if (err) -- cgit v1.2.3 From e95ef5d3f6bc60433883e1ef65dac747acd0bf1a Mon Sep 17 00:00:00 2001 From: Andre Detsch Date: Mon, 26 Apr 2010 05:38:27 +0000 Subject: cxgb3: Wait longer for control packets on initialization In some Power7 platforms, when using VIOS (Virtual I/O Server), we need to wait longer for control packets to finish transfer during initialization. Without this change, initialization may fail prematurely. Signed-off-by: Wen Xiong Signed-off-by: Andre Detsch Acked-by: Divy Le Ray Signed-off-by: David S. Miller --- drivers/net/cxgb3/cxgb3_main.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/net/cxgb3/cxgb3_main.c b/drivers/net/cxgb3/cxgb3_main.c index aced6c5e635c..e3f1b8566495 100644 --- a/drivers/net/cxgb3/cxgb3_main.c +++ b/drivers/net/cxgb3/cxgb3_main.c @@ -439,7 +439,7 @@ static void free_irq_resources(struct adapter *adapter) static int await_mgmt_replies(struct adapter *adap, unsigned long init_cnt, unsigned long n) { - int attempts = 5; + int attempts = 10; while (adap->sge.qs[0].rspq.offload_pkts < init_cnt + n) { if (!--attempts) -- cgit v1.2.3