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2010-09-26net: skb_frag_t can be smaller on small archesEric Dumazet
On 32bit arches, if PAGE_SIZE is smaller than 65536, we can use 16bit offset and size fields. This patch saves 72 bytes per skb on i386, or 128 bytes after rounding. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-09-26net: propagate NETIF_F_HIGHDMA to vlansEric Dumazet
Automatically allows vlans to get NETIF_F_HIGHDMA if underlying device supports it. On 32bit arches (and more precisely if CONFIG_HIGHMEM is enabled), it can help to reduce cost of illegal_highdma() and __skb_linearize() calls. Tested on tg3 , bnx2, bonding, this worked very well. This is a generalization of a patch provided by Yi Zou & Jeff Kirsher. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-09-24ixgbevf: Refactor ring parameter re-sizeGreg Rose
The function to resize the Tx/Rx rings had the potential to dereference a NULL pointer and the code would attempt to resize the Tx ring even if the Rx ring allocation had failed. This would cause some confusion in the return code semantics. Fixed up to just unwind the allocations if any of them fail and return an error. Signed-off-by: Greg Rose <gregory.v.rose@intel.com> Tested-by: Emil Tantilov <emil.s.tantilov@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-09-24stmmac: review the wake-up supportGiuseppe Cavallaro
If the PM support is available this is passed through the platform instead to be hard-coded in the core files. WoL on Magic Frame can be enabled by using the ethtool support. Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-09-24net: Add Gigabit Ethernet driver of Topcliff PCHMasayuki Ohtake
Signed-off-by: Masayuki Ohtake <masa-korg@dsn.okisemi.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-09-24ip: take care of last fragment in ip_append_dataEric Dumazet
While investigating a bit, I found ip_fragment() slow path was taken because ip_append_data() provides following layout for a send(MTU + N*(MTU - 20)) syscall : - one skb with 1500 (mtu) bytes - N fragments of 1480 (mtu-20) bytes (before adding IP header) last fragment gets 17 bytes of trail data because of following bit: if (datalen == length + fraggap) alloclen += rt->dst.trailer_len; Then esp4 adds 16 bytes of data (while trailer_len is 17... hmm... another bug ?) In ip_fragment(), we notice last fragment is too big (1496 + 20) > mtu, so we take slow path, building another skb chain. In order to avoid taking slow path, we should correct ip_append_data() to make sure last fragment has real trail space, under mtu... Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-09-23net: return operator cleanupEric Dumazet
Change "return (EXPR);" to "return EXPR;" return is not a function, parentheses are not required. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-09-23e1000: use GRO for receiveJesse Brandeburg
E1000 can benefit from calling the GRO receive functions. Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-09-23e1000: fix occasional panic on unloadJesse Brandeburg
Net drivers in general have an issue where timers fired by mod_timer or work threads with schedule_work are running outside of the rtnl_lock. With no other lock protection these routines are vulnerable to races with driver unload or reset paths. The longer term solution to this might be a redesign with safer locks being taken in the driver to guarantee no reentrance, but for now a safe and effective fix is to take the rtnl_lock in these routines. Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-09-23e1000: use work queuesJesse Brandeburg
E1000 is using several timers that in a follow on patch will need to acquire the rtnl_lock in order to be safe. This patch moves the timer bodies into work queues which will allow the next patch to add rtnl_lock. Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-09-22e1000/e1000e/igb/ixgb/ixgbe: set NETIF_F_HIGHDMA for VLAN feature flagsYi Zou
If the netdev->features is set with NETIF_F_HIGHDMA, we should set the corresponding netdev->vlan_features as well to allow VLAN netdev created on top of the real netdev to be able to also benefit from HIGHDMA on 32bit system, reducing the performance hit that is caused by __skb_linearize(), particularly for large send. This is fixed in this patch for all Intel e1000, e1000e, igb, ixgbe, and ixgbe drivers since this should be beneficial to all devices supported by these drivers. Signed-off-by: Yi Zou <yi.zou@intel.com> Tested-by: Emil Tantilov <emil.s.tantilov@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-09-22igb: Add support for DH89xxCCJoseph Gasparakis
This patch adds support for the Intel(r) DH89xxCC series. The new device will be using Intel(r) i347-AT4 and Marvell(r) M88E1322 and M88E1112 PHYs. Support for these devices has also been added here. Signed-off-by: Joseph Gasparakis <joseph.gasparakis@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-09-22igb: clear VF_PROMISC bits instead of setting all other bitsAlexander Duyck
This change corrects an issue in which we were setting all flag bits except for promisc instead of clearing the promisc bits due to the incorrect use of an |= instead of an &=. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-09-22X.25 remove bkl in pollandrew hendry
The x25_datagram_poll didn't add anything, removed it. Signed-off-by: Andrew Hendry <andrew.hendry@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-09-22X.25 remove bkl in getsocknameandrew hendry
Signed-off-by: Andrew Hendry <andrew.hendry@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-09-22sfc: Add support for SFE4003 board and TXC43128 PHYBen Hutchings
This board never went into production, but some engineering samples are in use. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-09-22sfc: Remove support for SFN4111T, SFT9001 and Falcon GMACBen Hutchings
SFN4111T never reached production and is not being used for internal or customer testing. Since we have no production Falcon boards using the SFT9001 or the GMAC, remove support for them as well. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-09-21Merge branch 'for-davem' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next-2.6
2010-09-21caif: Use default send and receive buffer size in caif_socket.Sjur Braendeland
CAIF sockets should use socket's default send and receive buffers sizes. Signed-off-by: Sjur Braendeland <sjur.brandeland@stericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-09-21caif: Fix function NULL pointer check.Sjur Braendeland
Check that receive function pointer is not null before calling it. Signed-off-by: Sjur Braendeland <sjur.brandeland@stericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-09-21caif: Minor fixes in log prints.Sjur Braendeland
Use pr_debug for flow control printouts, and refine an error printout. Signed-off-by: Sjur Braendeland <sjur.brandeland@stericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-09-21caif: Remove buggy re-definition of pr_debugSjur Braendeland
Remove debugging quirk redefining pr_debug to pr_warning. Signed-off-by: Sjur Brændeland <sjur.brandeland@stericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-09-21ipv6: addrconf.h cleanupsEric Dumazet
- Use rcu_dereference_rtnl() in __in6_dev_get - kerneldoc for __in6_dev_get() and in6_dev_get() - Use inline functions instead of macros Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-09-21net: constify some ppp/pptp structsEric Dumazet
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-09-21sundance: Use dev_kfree_skb_any() helperDenis Kirjanov
Use dev_kfree_skb_any() helper to free the skb Signed-off-by: Denis Kirjanov <dkirjanov@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-09-21sundance: Handle DMA mapping errorsDenis Kirjanov
Check for DMA mapping errors. Signed-off-by: Denis Kirjanov <dkirjanov@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-09-21sundance: Convert to DMA APIDenis Kirjanov
Convert to DMA API Signed-off-by: Denis Kirjanov <dkirjanov@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-09-21net: core: use kernel's converter from hex to binAndy Shevchenko
Signed-off-by: Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-09-21drivers: atm: use native kernel's hex_to_bin() funcAndy Shevchenko
Signed-off-by: Andy Shevchenko <andy.shevchenko@gmail.com> Cc: Chas Williams <chas@cmf.nrl.navy.mil> Cc: linux-atm-general@lists.sourceforge.net Signed-off-by: David S. Miller <davem@davemloft.net>
2010-09-21tmspci: fix tr%d in printkMeelis Roos
tmspci driver uses dev->name before register_netdev() and so prints tr%d in initialization messages. Fix it by using dev_info. Found and tested on real hardware. Signed-off-by: Meelis Roos <mroos@linux.ee> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-09-21ethtool: Fix build due to lack of ethtool.h include.David S. Miller
net/core/ethtool.c: In function 'ethtool_get_regs': net/core/ethtool.c:818:2: error: implicit declaration of function 'vmalloc' net/core/ethtool.c:818:9: warning: assignment makes pointer from integer without a cast net/core/ethtool.c:833:2: error: implicit declaration of function 'vfree' Signed-off-by: David S. Miller <davem@davemloft.net>
2010-09-21sfc: Fix build due to lack of vmalloc.h include.David S. Miller
drivers/net/sfc/filter.c: In function ‘efx_probe_filters’: drivers/net/sfc/filter.c:422: error: implicit declaration of function ‘vmalloc’ drivers/net/sfc/filter.c:422: warning: assignment makes pointer from integer without a cast drivers/net/sfc/filter.c: In function ‘efx_remove_filters’: drivers/net/sfc/filter.c:442: error: implicit declaration of function ‘vfree’ Signed-off-by: David S. Miller <davem@davemloft.net>
2010-09-21Merge branch 'dccp' of git://eden-feed.erg.abdn.ac.uk/net-next-2.6David S. Miller
2010-09-21sfc: Clean up and correct comments on efx_monitor()Ben Hutchings
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-09-21sfc: Include RX IP filter table in register dumpBen Hutchings
For backward compatibility, add it at the end. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-09-21sfc: Implement the ethtool RX n-tuple control functionsBen Hutchings
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-09-21sfc: Add filter table managementBen Hutchings
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-09-21ethtool: Allocate register dump buffer with vmalloc()Ben Hutchings
Some NICs have huge register files which exceed the maximum heap allocation size. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-09-21ethtool: Add Ethernet MAC-level filtering/steeringBen Hutchings
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-09-21ethtool: Define RX n-tuple action to clear a ruleBen Hutchings
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-09-21Merge branch 'master' of ↵John W. Linville
git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next-2.6 into for-davem Conflicts: arch/arm/mach-omap2/board-omap3pandora.c drivers/net/wireless/ath/ath5k/base.c
2010-09-21ath9k: make the driver specific rate control module optionalFelix Fietkau
ath9k can use minstrel_ht instead, so it makes sense to save some space here. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-09-21ath9k: move ath_tx_aggr_check() to the rate control moduleFelix Fietkau
It is not used anywhere else and can be made static Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-09-21ath9k: clean up / fix aggregation session flushFelix Fietkau
The tid aggregation cleanup is a bit fragile, as it discards failed subframes in some places, and retransmits them in others. This could block the cleanup of an existing aggregation session, if a retransmission for a tid is issued, yet the tid is never scheduled again because of the cleanup state. Fix this by getting rid of as many subframes as possible, as early as possible, and immediately transmitting pending subframes as regular HT frames instead of waiting for the cleanup to complete. Drop all pending subframes while keeping track of the Block ACK window during aggregate tx completion to prevent sending out stale subframes, which could confuse the receiver side. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Cc: stable@kernel.org Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-09-21ath9k: fix an aggregation start related race conditionFelix Fietkau
A new aggregation session start can be issued by mac80211, even when the cleanup of the previous session has not completed yet. Since the data structure for the session is not recreated, this could corrupt the block ack window and lock up the aggregation session. Fix this by delaying the new session until the old one has been cleaned up. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Cc: stable@kernel.org Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-09-21ath9k: clean up block ack window handlingFelix Fietkau
There's no reason to keep pointers to pending tx buffers around, if they're only used to keep track of which frames are still pending. Use a bitfield instead. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-09-21wl1271: bugfix: use bitwise-AND instead of logical-ANDEliad Peller
typo - while looking for specific bits we should do a bitwise-AND instead of logical-AND. Signed-off-by: Eliad Peller <eliad@wizery.com> Acked-by: Luciano Coelho <luciano.coelho@nokia.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-09-21wl1271: avoid redundant memcpy of rx_statusEliad Peller
copy the rx_status directly to skb->cb (control buffer) instead of copying it to a local struct and then copying it again (for each rx packet) Signed-off-by: Eliad Peller <eliad@wizery.com> Acked-by: Luciano Coelho <luciano.coelho@nokia.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-09-21carl9170: fix hang in AP mode when HT STA does PSMChristian Lamparter
This is a obvious bug, skb_queue_walk does not work if the iterator gets removed from the queue. Signed-off-by: Christian Lamparter <chunkeey@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-09-21carl9170: reinit phy after HT settings have changedChristian Lamparter
The driver has a set of different initvals for 20 MHz vs dynamic HT2040 operation. Because we can't change some of the registers "in-flight", the driver needs to perform a warm reset. Signed-off-by: Christian Lamparter <chunkeey@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>