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2010-02-16net/macvtap: fix reference countingArnd Bergmann1-13/+22
The RCU usage in the original code was broken because there are cases where we possibly sleep with rcu_read_lock held. As a fix, change the macvtap_file_get_queue to get a reference on the socket and the netdev instead of taking the full rcu_read_lock. Also, change macvtap_file_get_queue failure case to not require a subsequent macvtap_file_put_queue, as pointed out by Ed Swierk. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Cc: Ed Swierk <eswierk@aristanetworks.com> Cc: Sridhar Samudrala <sri@us.ibm.com> Acked-by: Sridhar Samudrala <sri@us.ibm.com> Acked-by: Ed Swierk <eswierk@aristanetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-16cxgb3: fix link flapDivy Le Ray1-1/+2
The driver is expected to report that the link is up when the phy Rx signal is established and the mac has not detected a link fault. The code is however broken, the driver does not check the link fault status when the phy link status changes. The link fault status being checked within a short period of time, it leads to link up/link down events. Signed-off-by: Divy Le Ray <divy@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-16cxgb3: FIx VLAN over Jumbo framesDivy Le Ray1-0/+3
The mac is expected to auto-inflate the Maximum Frame size for VLAN tagged frames. It however does not work with jumbo frames. Work around the bug adding 4 to the Maximum Frame for MTUs greater than 1536. Signed-off-by: Divy Le Ray <divy@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-16ixgbe: Cleanup incorrect header commentsPeter Waskiewicz1-5/+0
The recent n-tuple patches added some comments to the headers of the Flow Director functions that aren't accurate. This cleans them up, and is a purely cosmetic patch. Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-16ethtool: Move n-tuple capability check into set_flagsPeter Waskiewicz1-5/+8
set_flags should check if the underlying device supports n-tuple filter programming before setting the device flags on the netdevice. Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-16ethtool: Fix filter addition when caching n-tuple filtersPeter Waskiewicz1-16/+24
We can allow a filter to be added successfully to the underlying hardware, but still return an error if the cached list memory allocation fails. This patch fixes that condition. Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-15niu: Refinements to kernel logging.David S. Miller1-25/+1
Fix unconditional empty kerne log message every interrupt. Kill some informational log messages that are superfluous and anyways occur before the netdev is registered. Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-15mac80211: Fix error introduced in netdev_mc_count() changes.David S. Miller1-1/+1
Commit 4cd24eaf0c6ee7f0242e34ee77ec899f255e66b5 ("net: use netdev_mc_count and netdev_mc_empty when appropriate") added this hunk to net/mac80211/iface.c: __dev_addr_unsync(&local->mc_list, &local->mc_count, - &dev->mc_list, &dev->mc_count); + &dev->mc_list, dev->mc_count); which is definitely not correct, introduced a warning (reported by Stephen Rothwell): net/mac80211/iface.c: In function 'ieee80211_stop': net/mac80211/iface.c:416: warning: passing argument 4 of '__dev_addr_unsync' makes pointer from integer without a cast include/linux/netdevice.h:1967: note: expected 'int *' but argument is of type 'int' and is thus reverted here. Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-15vhost-net: switch to smp barriersMichael S. Tsirkin1-5/+5
vhost-net only uses memory barriers to control SMP effects (communication with userspace potentially running on a different CPU), so it should use SMP barriers and not mandatory barriers for memory access ordering, as suggested by Documentation/memory-barriers.txt Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Acked-by: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-15niu: Use pr_<level>, netdev_<level> and netif_<level> macrosJoe Perches1-392/+311
Remove #define PFX Add pr_fmt(fmt) KBUILD_MODNAME ": " fmt Convert printks to pr_<level> Convert printks without levels to pr_cont Convert pr_<level> with np->dev to netdev_<level> Convert dev_<level> to netdev_<level> Convert niudbg to netif_printk Convert niuinfo, niuwarn macros to netif_<level>(priv, type, dev... Coalesce long formats Convert embedded function names to "%s", __func__ Always use "%s()..." when __func__ is printed Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-15ethtool: Fix includes build breakDavid S. Miller1-1/+2
Based upon a patch by Oliver Hartkopp <oliver@hartkopp.net>. Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-15net: Fix first line of kernel-doc for a few functionsBen Hutchings3-4/+4
The function name must be followed by a space, hypen, space, and a short description. Signed-off-by: Ben Hutchings <ben@decadent.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-15Merge branch 'master' of ↵David S. Miller10-31/+36
master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 Conflicts: net/mac80211/rate.c
2010-02-15Merge branch 'master' of ↵David S. Miller79-1088/+1458
ssh://master.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next-2.6
2010-02-14Merge branch 'master' of ↵David S. Miller2-1/+7
ssh://master.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6
2010-02-13tg3: Update driver version to 3.107Matt Carlson1-2/+2
This patch updates the tg3 version to 3.107. Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-13tg3: Fix AC131 loopback test errors for 5785Matt Carlson2-2/+9
The AC131 does not enable the forced transmit clock settings immediately. The workaround is to read the register again to get the setting to take effect. Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Reviewed-by: Michael Chan <mchan@broadcom.com> Reviewed-by: Benjamin Li <benli@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-13tg3: Fix napi assignments in loopback testMatt Carlson1-4/+4
The 57765 lacks TSS support. This renders the napi assignments incorrect in the loopback test function. This patch fixes the problem. Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Reviewed-by: Michael Chan <mchan@broadcom.com> Reviewed-by: Benjamin Li <benli@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-13tg3: Reset phy during bringup when using phylibMatt Carlson1-2/+1
The driver puts the phy into low-power mode when it releases the device. If the device were to be reacquired, the phy needs a reset to bring it back to full powered operation. This patch allows phylib-enabled devices to reset the phy. Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Reviewed-by: Michael Chan <mchan@broadcom.com> Reviewed-by: Benjamin Li <benli@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-13tg3: Turn off multiple DMA reads for 5717Matt Carlson2-0/+4
The 5717's DMA read engine has a bug when initiating multiple DMA reads across the PCIe bus. This patch disables the feature. Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Reviewed-by: Michael Chan <mchan@broadcom.com> Reviewed-by: Benjamin Li <benli@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-13tg3: Fix 57765 A0 bootcode race conditionMatt Carlson2-0/+8
On A0 revision of 57765 asic rev devices, the bootcode will perform some hardware operations, after the magic signature is presented, that will collide with setup operations performed by the driver. The best way to avoid the contention is to have the driver delay an additional 10 milliseconds. B0 revisions of the chip will make this workaround unnecessary. Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Signed-off-by: Benjamin Li <benli@broadcom.com> Reviewed-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-13tg3: Unwedge stuck MSI-X vectorsMatt Carlson2-10/+20
The previous patch changed the code so that new rx buffer submissions to the hardware stall if a new submission would overwrite data needed by an unserviced rx packet. On very busy 5717 and 57765 asic rev devices, there is a corner case where the hardware will fail to assert an MSI-X interrupt for rx traffic. If that vector's interrupt never has another reason to assert, any rx buffers held will never be serviced. If the buffers are never serviced and the hardware consumes all the available rx packets for other rx rings, deadlock will result. The most reliable and least intrusive way to work around the problem is to detect the case where new submissions would overwrite existing data and force all rx interrupt vectors to fire. Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Reviewed-by: Michael Chan <mchan@broadcom.com> Reviewed-by: Benjamin Li <benli@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-13tg3: Prevent rx producer ring overrunsMatt Carlson1-0/+38
When operating in RSS mode, it is possible for one rx return ring to submit enough rx buffers back to the hardware such that it inadvertently overwrites data needed by another rx return ring. This patch addresses the problem by looking for non-NULL skb pointers in the rx_[std|jmb]_buffers rings that parallel the rx producer rings. Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Signed-off-by: Michael Chan <mchan@broadcom.com> Reviewed-by: Benjamin Li <benli@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-13tg3: Give MSI-X vec 1 rx backlog spaceMatt Carlson2-26/+22
RSS ring 1 is responsible for submitting new rx buffers to the hardware on behalf of all the other RSS rx return rings. Up until now this ring submitted its new rx buffers to the producer ring directly. The following patch will require that this ring have a place to put backlogged rx packets. As a consequence, it can no longer submit new buffers to the producer ring. This patch adds code to allocate an extra shadow producer ring for this RSS ring and adds RSS ring 1 to the list of rings needing buffer transfers. Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Signed-off-by: Michael Chan <mchan@broadcom.com> Reviewed-by: Benjamin Li <benli@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-13igb: support for VF configuration toolsWilliams, Mitch A4-11/+126
Add support to the igb driver for VF configuration mechanisms through the PF interface. Signed-off-by: Mitch Williams <mitch.a.williams@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-13rtnetlink: Add VF config code to rtnetlinkWilliams, Mitch A1-0/+67
Add code to allow rtnetlink clients to query and set VF information through the PF driver. Signed-off-by: Mitch Williams <mitch.a.williams@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-13net: Add netdev ops for SR-IOV configurationWilliams, Mitch A1-0/+17
Add netdev ops for configuring SR-IOV VF devices through the PF driver. Signed-off-by: Mitch Williams <mitch.a.williams@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-13if_link: Add SR-IOV configuration methodsWilliams, Mitch A1-0/+30
Add SR-IOV VF management methods to IFLA_LINKINFO. This allows userspace to use rtnetlink to configure VF network devices. Signed-off-by: Mitch Williams <mitch.a.williams@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-13pci: Add SR-IOV convenience functions and macrosWilliams, Mitch A2-0/+26
Add and export pci_num_vf to allow other subsystems to determine how many virtual function devices are associated with an SR-IOV physical function device. Add macros dev_is_pci, dev_is_ps, and dev_num_vf to make it easier for non-PCI specific code to determine SR-IOV capabilities. Signed-off-by: Mitch Williams <mitch.a.williams@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-13udp: remove redundant variableGerrit Renker2-16/+14
The variable 'copied' is used in udp_recvmsg() to emphasize that the passed 'len' is adjusted to fit the actual datagram length. But the same can be done by adjusting 'len' directly. This patch thus removes the indirection. Signed-off-by: Gerrit Renker <gerrit@erg.abdn.ac.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-13dccp: support for passing MSG_TRUNCGerrit Renker1-0/+2
DCCP is datagram-oriented but lacks UDP's support for MSG_TRUNC as defined in recvmsg(2)/recv(2). Hence the following 'Hello world\0' receiver len = recv(fd, buf, 10, MSG_PEEK | MSG_TRUNC); wrongly (always) returns 10, while in UDP it returns 12 as expected. This patch adds the missing MSG_TRUNC support to recvmsg(). Signed-off-by: Gerrit Renker <gerrit@erg.abdn.ac.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-13sky2: version 1.27stephen hemminger1-1/+1
Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-13sky2: Avoid down and up during sky2_resetMike McCormack1-21/+47
Rewrite sky2_reset to work with interrupts disabled and avoid freeing and reallocing memory. The old code used sky2_down and sky2_up to implement sky2_reset, which meant interrupts could not be disabled, and the transmit and receive ring buffers would be free'd and reallocated. To avoid the interrupt handler waking the transmit queue while we're doing a reset, it's better to have interrupts and NAPI polls disabled. Note: Modified Mike's patch to do IRQ disable in sky2_down before calling sky2_hw_down - Stephen Signed-off-by: Mike McCormack <mikem@ring3k.org> Acked-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-13sky2: Refactor sky2_down into two functionsMike McCormack1-11/+17
Create a sky2_hw_down that brings the hardware down. Signed-off-by: Mike McCormack <mikem@ring3k.org> Acked-by: Stephen Hemminber <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-13sky2: Refactor sky2_up into two functionsMike McCormack1-16/+25
Move hardware initialization into sky2_hw_up. Signed-off-by: Mike McCormack <mikem@ring3k.org> Acked-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-13sky2: Allocate initial skbs in sky2_alloc_buffersMike McCormack1-30/+36
Allocate everything in one place so there's a single point of failure in sky2_up, and sky2_rx_start can no longer fail. Don't leave the hardware in a partially initialized state in the case rx ring allocation fails. As with the old code, the rx ring still needs to be fully allocated for sky2_up to succeed. Signed-off-by: Mike McCormack <mikem@ring3k.org> Acked-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-13sky2: Factor out code to calculate packet sizesMike McCormack1-20/+37
Move code to calculate receive threshold and packet size out of sky2_rx_start() so that is can be called from elsewhere easily. Signed-off-by: Mike McCormack <mikem@ring3k.org> Acked-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-13sky2: jumbo packet changesstephen hemminger2-26/+18
Change how FIFO is programmed in jumbo mode (to match vendor driver). Mostly cosmetic, the only register change is that the bits 22,23 are not programemd used. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-13sky2: dont enable PME legacy modestephen hemminger1-6/+0
This bit is not changed by vendor driver, and should be left alone. The documentation implies this a debug bit. 0 = WAKE# only asserted when VMAIN not available 1 = WAKE# is depend on wake events and independent of VMAIN. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-13sky2: WoL changesstephen hemminger1-56/+9
Change Wake On Lan code to be similar to vendor driver. The definition of Y2_HW_WOL_ON is confusing; what it means is transition to firmware SPI setting when doing power change. Since same code is done for both shutdown and suspend, use common code path. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-13sky2: fix sparse warningstephen hemminger1-1/+1
Warning about hidden variable Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-13xfrm: use proper kernel typesjamal1-13/+13
kernel side should use uxx instead of __uxx types Signed-off-by: Jamal Hadi Salim <hadi@cyberus.ca> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-13xfrm: validate attributesjamal1-0/+4
Some XFRM attributes were not going through basic validation. Signed-off-by: Jamal Hadi Salim <hadi@cyberus.ca> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-13drivers/net/skge.c: Use netif_printk macrosJoe Perches1-44/+29
Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-13drivers/net/qlge: Use netif_printk helpersJoe Perches5-559/+580
Convert QPRINTK macros to netif_<level> equivalents. Expands and standardizes the logging message output. Removes __func__ from most logging messages. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-13drivers/net/jme: Use netif_printk helpersJoe Perches2-61/+34
Convert uses of msg_<type> to netif_<level>( Remove msg_<type> macros Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-13drivers/net/r8196.c: Use netif_printk macrosJoe Perches1-88/+48
Simplify the logic a bit, make the message logs a bit more consistent. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-13include/linux/netdevice.h: Add netif_printk helpersJoe Perches1-0/+53
Add macros to test a private structure for msg_enable bits and the netif_msg_##bit to test and call netdev_printk if set Simplifies logic in callers and adds message logging consistency Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-13drivers/net/atl1e: Use netdev_printk helpersJoe Perches3-112/+99
Logging messages sometimes had duplicated "ATL1E" output. For instance: ATL1E 0000:03:00.0: ATL1E: eth0 NIC Link is Up<100 Mbps Full Duplex> is now: ATL1E 0000:03:00.0: eth0: NIC Link is Up <100 Mbps Full Duplex> Add some consistency to logging messages Add some missing \n's to logging messages Miscellaneous typo spelling corrections Change atl1e_validate_option argument from pdev to adapter Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-13netdevice.h: Add netdev_printk helpers like dev_printkJoe Perches1-0/+71
These netdev_printk routines take a struct net_device * and emit dev_printk logging messages adding "%s: " ... netdev->dev.parent to the dev_printk format and arguments. This can create some uniformity in the output message log. These helpers should not be used until a successful alloc_netdev. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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