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2012-05-01l2tp: let iproute2 create L2TPv3 IP tunnels using IPv6James Chapman
The netlink API lets users create unmanaged L2TPv3 tunnels using iproute2. Until now, a request to create an unmanaged L2TPv3 IP encapsulation tunnel over IPv6 would be rejected with EPROTONOSUPPORT. Now that l2tp_ip6 implements sockets for L2TP IP encapsulation over IPv6, we can add support for that tunnel type. Signed-off-by: James Chapman <jchapman@katalix.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-01l2tp: introduce L2TPv3 IP encapsulation support for IPv6Chris Elston
L2TPv3 defines an IP encapsulation packet format where data is carried directly over IP (no UDP). The kernel already has support for L2TP IP encapsulation over IPv4 (l2tp_ip). This patch introduces support for L2TP IP encapsulation over IPv6. The implementation is derived from ipv6/raw and ipv4/l2tp_ip. Signed-off-by: Chris Elston <celston@katalix.com> Signed-off-by: James Chapman <jchapman@katalix.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-01ipv6: Export ipv6 functions for use by other protocolsChris Elston
For implementing other protocols on top of IPv6, such as L2TPv3's IP encapsulation over ipv6, we'd like to call some IPv6 functions which are not currently exported. This patch exports them. Signed-off-by: Chris Elston <celston@katalix.com> Signed-off-by: James Chapman <jchapman@katalix.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-01l2tp: netlink api for l2tpv3 ipv6 unmanaged tunnelsChris Elston
This patch adds support for unmanaged L2TPv3 tunnels over IPv6 using the netlink API. We already support unmanaged L2TPv3 tunnels over IPv4. A patch to iproute2 to make use of this feature will be submitted separately. Signed-off-by: Chris Elston <celston@katalix.com> Signed-off-by: James Chapman <jchapman@katalix.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-01l2tp: show IPv6 addresses in l2tp debugfs fileChris Elston
If an L2TP tunnel uses IPv6, make sure the l2tp debugfs file shows the IPv6 address correctly. Signed-off-by: Chris Elston <celston@katalix.com> Signed-off-by: James Chapman <jchapman@katalix.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-01l2tp: pppol2tp_connect() handles ipv6 sockaddr variantsJames Chapman
Userspace uses connect() to associate a pppol2tp socket with a tunnel socket. This needs to allow the caller to supply the new IPv6 sockaddr_pppol2tp structures if IPv6 is used. Signed-off-by: James Chapman <jchapman@katalix.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-01pppox: Replace __attribute__((packed)) in if_pppox.hJames Chapman
Checkpatch warns about the use of __attribute__((packed)). So use the recommended __packed syntax instead. Signed-off-by: James Chapman <jchapman@katalix.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-01l2tp: remove unused stats from l2tp_ip socketJames Chapman
The l2tp_ip socket currently maintains packet/byte stats in its private socket structure. But these counters aren't exposed to userspace and so serve no purpose. The counters were also smp-unsafe. So this patch just gets rid of the stats. While here, change a couple of internal __u32 variables to u32. Signed-off-by: James Chapman <jchapman@katalix.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-01l2tp: Use ip4_datagram_connect() in l2tp_ip_connect()James Chapman
Cleanup the l2tp_ip code to make use of an existing ipv4 support function. Signed-off-by: James Chapman <jchapman@katalix.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-01l2tp: fix locking of 64-bit counters for smpJames Chapman
L2TP uses 64-bit counters but since these are not updated atomically, we need to make them safe for smp. This patch addresses that. Signed-off-by: James Chapman <jchapman@katalix.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-01ktest: Fix reboot on success stopping all rebootsSteven Rostedt
The change to let individual tests decide to reboot the machine on success of the entire test also prevented errors from rebooting when an error was detected. The "no_reboot" variable was only cleared if the test had reboot_on_success set. But the no_reboot variable also prevents the test rebooting when an error was detected even when REBOOT_ON_ERROR was set. Add a new "reboot_success" variable that is used to determine if the test should reboot on success and not touch the no_reboot variable. Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2012-05-01ktest.pl: Fix combined usage of BISECT_REVERSE and BISECT_SKIPRuss Dill
When BISECT_REVERSE and BISECT_SKIP are used together with boot or test testing, build failures are treated as boot or test failures and 'git bisect bad' is executed instead of 'git bisect skip'. This is because the $ret value of -1 is treated as a build failure, but the $reverse_bisect logic does not properly handle this. Simple fix, only invert it if it is positive. Link: http://lkml.kernel.org/r/1335235380-8509-1-git-send-email-Russ.Dill@ti.com Signed-off-by: Russ Dill <Russ.Dill@ti.com> Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2012-05-01Merge branch 'drm-nouveau-fixes' of ↵Dave Airlie
git://git.freedesktop.org/git/nouveau/linux-2.6 into drm-fixes * 'drm-nouveau-fixes' of git://git.freedesktop.org/git/nouveau/linux-2.6: drm/nv10/gpio: fix thinko in mask for gpio lines 2-9 nvc0/fb: shut up PMFB interrupt after the first occurrence drm/nouveau/hdmi: use correct hdmi regs for nvaa/nvac drm/nouveau/bios: fix regression on some nv4x board
2012-05-01mfd: Fix build breakage in omap-usb-host.cRuss Dill
'ARM: OMAP3: USB: Fix the EHCI ULPI PHY reset issue' removes the include for linux/gpio.h from omap-usb-host.c. This include indirectly includes plat/cpu.h which is required by omap-usb-host.c. Fix the build breakage by including it directly. Acked-by: Keshava Munegowda <keshava_mgowda@ti.com> Acked-by: Kevin Hilman <khilman@ti.com> Tested-by: Arend van Spriel <arend@broadcom.com> Signed-off-by: Russ Dill <Russ.Dill@ti.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-04-30cxgb3: Don't call cxgb_vlan_mode until q locks are initializedRoland Dreier
The driver calls cxgb_vlan_mode() from init_one(). This calls into synchronize_rx(), which locks all the q locks, but the q locks are not initialized until cxgb_up() -> setup_sge_qsets(). So move the call to cxgb_vlan_mode() into cxgb_up(), after the call to setup_sge_qsets(). We also move the body of these functions up higher to avoid having to a forward declaration. This was found because of the lockdep warning: INFO: trying to register non-static key. the code is fine but needs lockdep annotation. turning off the locking correctness validator. Pid: 323, comm: work_for_cpu Not tainted 3.4.0-rc5 #28 Call Trace: [<ffffffff8106e767>] register_lock_class+0x108/0x2d0 [<ffffffff8106ff42>] __lock_acquire+0xd3/0xd06 [<ffffffff81070fd0>] lock_acquire+0xbf/0xfe [<ffffffff813862a6>] _raw_spin_lock_irq+0x36/0x45 [<ffffffffa01e71aa>] cxgb_vlan_mode+0x96/0xcb [cxgb3] [<ffffffffa01f90eb>] init_one+0x8c4/0x980 [cxgb3] [<ffffffff811fcbf0>] local_pci_probe+0x3f/0x70 [<ffffffff81042206>] do_work_for_cpu+0x10/0x22 [<ffffffff810482de>] kthread+0xa1/0xa9 [<ffffffff8138e234>] kernel_thread_helper+0x4/0x10 Contrary to what lockdep says, the code is not fine: we are locking an uninitialized spinlock. Signed-off-by: Roland Dreier <roland@purestorage.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-30Merge branch 'master' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/net
2012-04-30ixgbe: fix calling skb_put on nonlinear skb assertion bugYi Zou
With the support to bounce buffer added, the skb is coming as nonlinear in the case of non-DDPed data frames for FCoE, which is mostly ok as the FCoE stack would take care of that. However, for target mode, we have to set the FC CRC and FC EOF field to allow the protocol stack to not drop the frame for the last data frame of that sequence. So fix this by linearizing the skb first before doing skb_put(). Signed-off-by: Yi Zou <yi.zou@intel.com> Tested-by: Marcus Dennis <marcusx.e.dennis@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-04-30ixgbe: Fix a memory leak in IEEE DCBAlexander Duyck
The driver was freeing memory in shutdown instead of remove. As a result we were leaking memory if IEEE DCB was enabled and we loaded/unloaded the driver. This change moves the freeing of the memory into the remove routine where it belongs. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Acked-by: John Fastabend <john.r.fastabend@intel.com> Tested-by: Ross Brattain <ross.b.brattain@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-04-30igbvf: fix the bug when initializing the igbvfSamuel Liao
Maybe it's a typo, but it cause that igbvf can't be initialized successfully. Set perm_addr value using valid dev_addr, although which is equal to hw.mac.addr. Signed-off-by: Samuel Liao <samuelliao@tencent.com> Signed-off-by: Shan Wei <davidshan@tencent.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-04-30smsc75xx: enable mac to detect speed/duplex from phySteve Glendinning
This patch sets the automatic speed and duplex detection bits in MAC_CR to enable the mac to determine its speed automatically from the phy. Note this must be done BEFORE the receiver or transmitter is enabled. Signed-off-by: Stephane Fillod <fillods@users.sf.net> Signed-off-by: Steve Glendinning <steve.glendinning@shawell.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-30smsc75xx: declare smsc75xx's MII as GMII capableSteve Glendinning
also explicitly set the phy to advertise 1000 speeds Signed-off-by: Stephane Fillod <fillods@users.sf.net> Signed-off-by: Steve Glendinning <steve.glendinning@shawell.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-30smsc75xx: fix phy interrupt acknowledgeSteve Glendinning
smsc75xx phy interrupt acknowledge needs an mdio_write to clear PHY_INT_SRC instead of just a read like in smsc95xx. Signed-off-by: Stephane Fillod <fillods@users.sf.net> Signed-off-by: Steve Glendinning <steve.glendinning@shawell.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-30smsc75xx: fix phy init reset loopSteve Glendinning
fix bug in phy_init loop that was ignoring BMCR reset bit, akin to smsc95xx's d946092000698fd204d82a9d239103c656fb63bf Signed-off-by: Stephane Fillod <fillods@users.sf.net> Signed-off-by: Steve Glendinning <steve.glendinning@shawell.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-30smsc75xx: add more information to register io failure warningsSteve Glendinning
Signed-off-by: Stephane Fillod <fillods@users.sf.net> Signed-off-by: Steve Glendinning <steve.glendinning@shawell.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-30smsc75xx: fix mdio reads and writesSteve Glendinning
smsc75xx needs MII_ACCESS_BUSY to be set to correctly trigger mdio I/O. Note smsc75xx is different from smsc95xx in this regard. Signed-off-by: Stephane Fillod <fillods@users.sf.net> Signed-off-by: Steve Glendinning <steve.glendinning@shawell.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-30smsc75xx: mark link down on startup and let PHY interrupt deal with carrier ↵Steve Glendinning
changes This patch fixes the same issue as reported on smsc95xx, where the usb device is connected with no ethernet cable plugged-in. Without this patch sysfs reports the cable as present flag@flag-desktop:~$ cat /sys/class/net/eth0/carrier 1 while it's not: flag@flag-desktop:~$ sudo mii-tool eth0 eth0: no link Signed-off-by: Steve Glendinning <steve.glendinning@shawell.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-30atl1c: remove PHY polling from atl1c_change_mtuHuang, Xiong
PHY polling code for FPGA is considered in every MDIO R/W API. no need to add additional code to atl1c_change_mtu. Signed-off-by: xiong <xiong@qca.qualcomm.com> Tested-by: David Liu <dwliu@qca.qaulcomm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-30atl1c: Disable L0S when no cable linkHuang, Xiong
L0S might be unstable if no cable link, only enable it when link up. Signed-off-by: xiong <xiong@qca.qualcomm.com> Tested-by: Liu David <dwliu@qca.qualcomm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-30atl1c: do MAC-reset when PHY link downHuang, Xiong
There may be tx-skbs still pending in HW when PHY link down. Reset MAC will make the DMA engine go to the start point. and release all pending skbs. Note: Reset MAC will clear any interrupt status and mask. Signed-off-by: xiong <xiong@qca.qualcomm.com> Tested-by: Liu David <dwliu@qca.qualcomm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-30atl1c: cancel task when interface closedHuang, Xiong
common_task might be running while close routine is called, wait/cancel it. Signed-off-by: xiong <xiong@qca.qualcomm.com> Tested-by: Liu David <dwliu@qca.qualcomm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-30atl1c: enlarge L1 response waiting timerHuang, Xiong
The hardware incorrectly process L0S/L1 entrance if the chipset/root response after specific/shorter timer and cause system hang. Enlarge the timeout value to avoid this issue. Signed-off-by: xiong <xiong@qca.qualcomm.com> Tested-by: Liu David <dwliu@qca.qualcomm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-30atl1c: refine mac address related codeHuang, Xiong
On some platform with EEPROM/OTP existing, the BIOS could overwrite a new MAC address for the NIC. so, the permanent mac address should be from BIOS. the address is restored when driver removing. Voltage raising isn't applicable for l1d. Replace swab32 with htonl for big/little endian platform. related Registers are refined as well. Signed-off-by: xiong <xiong@qca.qualcomm.com> Tested-by: Liu David <dwliu@qca.qualcomm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-30atl1c: remove code of closing register writable attributionHuang, Xiong
The Close-action is done by atl1c_reset_pcie, remove it from atl1c_get_permanent_address. Signed-off-by: xiong <xiong@qca.qualcomm.com> Tested-by: Liu David <dwliu@qca.qualcomm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-30atl1c: clear WoL status when reset pcieHuang, Xiong
WoL status is read-clear and should be cleared when in S0 status. putting it in atl1c_reset_pcie is more suitable than in atl1c_get_permanent_address. Signed-off-by: xiong <xiong@qca.qualcomm.com> Tested-by: Liu David <dwliu@qca.qualcomm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-30atl1c: add PHY link event(up/down) patchHuang, Xiong
On some platforms the PHY settings need to change depending on the cable link status to get better stability. Signed-off-by: xiong <xiong@qca.qualcomm.com> Tested-by: Liu David <dwliu@qca.qualcomm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-30atl1c: add workaround for issue of bit INTX-disable for MSI interruptHuang, Xiong
All supported devices have one issue that msi interrupt doesn't assert if pci command register bit (PCI_COMMAND_INTX_DISABLE) is set. Add workaround in drivers/pci/quirks.c Signed-off-by: xiong <xiong@qca.qualcomm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-30Merge branch 'tipc_net-next' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux
2012-04-30bnx2x: remove some bloatEric Dumazet
Before doing skb->head_frag work on bnx2x driver, I found too much stuff was inlined in bnx2x/bnx2x_cmn.h for no good reason and made my work not very easy. Move some big functions out of this include file to the respective .c file. A lot of inline keywords are not needed at all in this huge driver. text data bss dec hex filename 490083 1270 56 491409 77f91 bnx2x/bnx2x.ko.before 484206 1270 56 485532 7689c bnx2x/bnx2x.ko Signed-off-by: Eric Dumazet <edumazet@google.com> Cc: Eilon Greenstein <eilong@broadcom.com> Cc: Herbert Xu <herbert@gondor.apana.org.au> Cc: Maciej Żenczykowski <maze@google.com> Cc: Neal Cardwell <ncardwell@google.com> Cc: Tom Herbert <therbert@google.com> Cc: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Cc: Ben Hutchings <bhutchings@solarflare.com> Cc: Matt Carlson <mcarlson@broadcom.com> Cc: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-30pch_gbe: reprogram multicast address register on resetRongQing.Li
The reset logic after a Rx FIFO overrun will clear the programmed multicast addresses. This patch fixes the issue by reprogramming the registers after the reset. The commit eefc48b ("pch_gbe: reprogram multicast address register on reset") tried to fix this problem, but it introduces unnecessary codes. In fact, all multicast addresses have been saved in netdev->mc, So we can call pch_gbe_set_multi() directly after reset_hw and reset_rx. This commit kills 50+ line codes Cc: Richard Cochran <richardcochran@gmail.com> Cc: Takahiro Shimizu <tshimizu818@gmail.com> Signed-off-by: RongQing.Li <roy.qing.li@gmail.com> Acked-by: Richard Cochran <richardcochran@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-30net: makes skb_splice_bits() aware of skb->head_fragEric Dumazet
__skb_splice_bits() can check if skb to be spliced has its skb->head mapped to a page fragment, instead of a kmalloc() area. If so we can avoid a copy of the skb head and get a reference on underlying page. Signed-off-by: Eric Dumazet <edumazet@google.com> Cc: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> Cc: Herbert Xu <herbert@gondor.apana.org.au> Cc: Maciej Żenczykowski <maze@google.com> Cc: Neal Cardwell <ncardwell@google.com> Cc: Tom Herbert <therbert@google.com> Cc: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Cc: Ben Hutchings <bhutchings@solarflare.com> Cc: Matt Carlson <mcarlson@broadcom.com> Cc: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-30tcp: makes tcp_try_coalesce aware of skb->head_fragEric Dumazet
TCP coalesce can check if skb to be merged has its skb->head mapped to a page fragment, instead of a kmalloc() area. We had to disable coalescing in this case, for performance reasons. We 'upgrade' skb->head as a fragment in itself. This reduces number of cache misses when user makes its copies, since a less sk_buff are fetched. This makes receive and ofo queues shorter and thus reduce cache line misses in TCP stack. This is a followup of patch "net: allow skb->head to be a page fragment" Tested with tg3 nic, with GRO on or off. We can see "TCPRcvCoalesce" counter being incremented. Signed-off-by: Eric Dumazet <edumazet@google.com> Cc: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> Cc: Herbert Xu <herbert@gondor.apana.org.au> Cc: Maciej Żenczykowski <maze@google.com> Cc: Neal Cardwell <ncardwell@google.com> Cc: Tom Herbert <therbert@google.com> Cc: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Cc: Ben Hutchings <bhutchings@solarflare.com> Cc: Matt Carlson <mcarlson@broadcom.com> Cc: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-30net: make GRO aware of skb->head_fragEric Dumazet
GRO can check if skb to be merged has its skb->head mapped to a page fragment, instead of a kmalloc() area. We 'upgrade' skb->head as a fragment in itself This avoids the frag_list fallback, and permits to build true GRO skb (one sk_buff and up to 16 fragments), using less memory. This reduces number of cache misses when user makes its copy, since a single sk_buff is fetched. This is a followup of patch "net: allow skb->head to be a page fragment" Signed-off-by: Eric Dumazet <edumazet@google.com> Cc: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> Cc: Herbert Xu <herbert@gondor.apana.org.au> Cc: Maciej Żenczykowski <maze@google.com> Cc: Neal Cardwell <ncardwell@google.com> Cc: Tom Herbert <therbert@google.com> Cc: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Cc: Ben Hutchings <bhutchings@solarflare.com> Cc: Matt Carlson <mcarlson@broadcom.com> Cc: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-30tg3: provide frags as skb headEric Dumazet
This patch converts tg3 driver, one of our reference drivers, to use new build_skb() api in frag mode. Instead of using kmalloc() to allocate the memory block that will be used by build_skb() as skb->head, we use a page fragment. This is a followup of patch "net: allow skb->head to be a page fragment" This allows GRO, TCP coalescing, and splice() to be more efficient. Incidentally, this also removes SLUB slow path contention in kfree() Signed-off-by: Eric Dumazet <edumazet@google.com> Cc: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> Cc: Herbert Xu <herbert@gondor.apana.org.au> Cc: Maciej Żenczykowski <maze@google.com> Cc: Neal Cardwell <ncardwell@google.com> Cc: Tom Herbert <therbert@google.com> Cc: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Cc: Ben Hutchings <bhutchings@solarflare.com> Cc: Matt Carlson <mcarlson@broadcom.com> Cc: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-30net: allow skb->head to be a page fragmentEric Dumazet
skb->head is currently allocated from kmalloc(). This is convenient but has the drawback the data cannot be converted to a page fragment if needed. We have three spots were it hurts : 1) GRO aggregation When a linear skb must be appended to another skb, GRO uses the frag_list fallback, very inefficient since we keep all struct sk_buff around. So drivers enabling GRO but delivering linear skbs to network stack aren't enabling full GRO power. 2) splice(socket -> pipe). We must copy the linear part to a page fragment. This kind of defeats splice() purpose (zero copy claim) 3) TCP coalescing. Recently introduced, this permits to group several contiguous segments into a single skb. This shortens queue lengths and save kernel memory, and greatly reduce probabilities of TCP collapses. This coalescing doesnt work on linear skbs (or we would need to copy data, this would be too slow) Given all these issues, the following patch introduces the possibility of having skb->head be a fragment in itself. We use a new skb flag, skb->head_frag to carry this information. build_skb() is changed to accept a frag_size argument. Drivers willing to provide a page fragment instead of kmalloc() data will set a non zero value, set to the fragment size. Then, on situations we need to convert the skb head to a frag in itself, we can check if skb->head_frag is set and avoid the copies or various fallbacks we have. This means drivers currently using frags could be updated to avoid the current skb->head allocation and reduce their memory footprint (aka skb truesize). (thats 512 or 1024 bytes saved per skb). This also makes bpf/netfilter faster since the 'first frag' will be part of skb linear part, no need to copy data. Signed-off-by: Eric Dumazet <edumazet@google.com> Cc: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> Cc: Herbert Xu <herbert@gondor.apana.org.au> Cc: Maciej Żenczykowski <maze@google.com> Cc: Neal Cardwell <ncardwell@google.com> Cc: Tom Herbert <therbert@google.com> Cc: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Cc: Ben Hutchings <bhutchings@solarflare.com> Cc: Matt Carlson <mcarlson@broadcom.com> Cc: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-30forcedeth: add transmit timestamping supportWillem de Bruijn
Insert an skb_tx_timestamp call in both ndo_start_xmit routines Tested to work for the nv_start_xmit_optimized case Signed-off-by: Willem de Bruijn <willemb@google.com> Acked-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-30bnx2x: add transmit timestamping supportWillem de Bruijn
Signed-off-by: Willem de Bruijn <willemb@google.com> Acked-by: Eilon Greenstein <eilong@broadcom.com> Acked-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-30e1000e: add transmit timestamping supportWillem de Bruijn
Signed-off-by: Willem de Bruijn <willemb@google.com> Acked-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-30e1000: add transmit timestamping supportWillem de Bruijn
Signed-off-by: Willem de Bruijn <willemb@google.com> Acked-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-30ASoC: s3c2412-i2s: Fix dai registrationHeiko Stübner
As s3c2412-i2s is using the s3c_i2sv2 it should call the more specialised s3c_i2sv2_register_dai instead of simply calling snd_soc_register_dai. Without this call the snd_soc_dai_ops structure isn't initialised correctly. Signed-off-by: Heiko Stuebner <heiko@sntech.de> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-04-30ASoC: wm8350: Don't use locally allocated codec structMark Brown
The core allocates the live copies, we shouldn't try to duplicate it and were buggy trying to do so as we were using uninitialised data for the control data. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
generated by cgit (git 2.34.1) at 2025-09-14 23:56:44 +0000