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path: root/drivers/net/e1000e/netdev.c
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2011-03-31e1000e: disable broken PHY wakeup for ICH10 LOMs, use MAC wakeup insteadBruce Allan
commit 4def99bbfd46e05c5e03b5b282cb4ee30e27ff19 upstream. When support for 82577/82578 was added[1] in 2.6.31, PHY wakeup was in- advertently enabled (even though it does not function properly) on ICH10 LOMs. This patch makes it so that the ICH10 LOMs use MAC wakeup instead as was done with the initial support for those devices (i.e. 82567LM-3, 82567LF-3 and 82567V-4). [1] commit a4f58f5455ba0efda36fb33c37074922d1527a10 Reported-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Bruce Allan <bruce.w.allan@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: Andi Kleen <ak@linux.intel.com>
2010-08-13e100/e1000*/igb*/ixgb*: Add missing read memory barrierJeff Kirsher
commit 2d0bb1c1f4524befe9f0fcf0d0cd3081a451223f upstream. Based on patches from Sonny Rao and Milton Miller... Combined the patches to fix up clean_tx_irq and clean_rx_irq. The PowerPC architecture does not require loads to independent bytes to be ordered without adding an explicit barrier. In ixgbe_clean_rx_irq we load the status bit then load the packet data. With packet split disabled if these loads go out of order we get a stale packet, but we will notice the bad sequence numbers and drop it. The problem occurs with packet split enabled where the TCP/IP header and data are in different descriptors. If the reads go out of order we may have data that doesn't match the TCP/IP header. Since we use hardware checksumming this bad data is never verified and it makes it all the way to the application. This bug was found during stress testing and adding this barrier has been shown to fix it. The bug can manifest as a data integrity issue (bad payload data) or as a BUG in skb_pull(). This was a nasty bug to hunt down, if people agree with the fix I think it's a candidate for stable. Previously Submitted to e1000-devel only for ixgbe http://marc.info/?l=e1000-devel&m=126593062701537&w=3 We've now seen this problem hit with other device drivers (e1000e mostly) So I'm resubmitting with fixes for other Intel Device Drivers with similar issues. CC: Milton Miller <miltonm@bga.com> CC: Anton Blanchard <anton@samba.org> CC: Sonny Rao <sonnyrao@us.ibm.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10e1000e: don't inadvertently re-set INTX_DISABLEDean Nelson
commit 36f2407fe52c55566221f8c68c8fb808abffd2f5 upstream. Should e1000_test_msi() fail to see an msi interrupt, it attempts to fallback to legacy INTx interrupts. But an error in the code may prevent this from happening correctly. Before calling e1000_test_msi_interrupt(), e1000_test_msi() disables SERR by clearing the SERR bit from the just read PCI_COMMAND bits as it writes them back out. Upon return from calling e1000_test_msi_interrupt(), it re-enables SERR by writing out the version of PCI_COMMAND it had previously read. The problem with this is that e1000_test_msi_interrupt() calls pci_disable_msi(), which eventually ends up in pci_intx(). And because pci_intx() was called with enable set to 1, the INTX_DISABLE bit gets cleared from PCI_COMMAND, which is what we want. But when we get back to e1000_test_msi(), the INTX_DISABLE bit gets inadvertently re-set because of the attempt by e1000_test_msi() to re-enable SERR. The solution is to have e1000_test_msi() re-read the PCI_COMMAND bits as part of its attempt to re-enable SERR. During debugging/testing of this issue I found that not all the systems I ran on had the SERR bit set to begin with. And on some of the systems the same could be said for the INTX_DISABLE bit. Needless to say these latter systems didn't have a problem falling back to legacy INTx interrupts with the code as is. Signed-off-by: Dean Nelson <dnelson@redhat.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> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-06-03e1000e: change logical negate to bitwiseDan Carpenter
The bitwise negate is intended here. With the logical negate the condition is always false. Signed-off-by: Dan Carpenter <error27@gmail.com> Acked-by: Bruce Allan <bruce.w.allan@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-05-20Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6: (1674 commits) qlcnic: adding co maintainer ixgbe: add support for active DA cables ixgbe: dcb, do not tag tc_prio_control frames ixgbe: fix ixgbe_tx_is_paused logic ixgbe: always enable vlan strip/insert when DCB is enabled ixgbe: remove some redundant code in setting FCoE FIP filter ixgbe: fix wrong offset to fc_frame_header in ixgbe_fcoe_ddp ixgbe: fix header len when unsplit packet overflows to data buffer ipv6: Never schedule DAD timer on dead address ipv6: Use POSTDAD state ipv6: Use state_lock to protect ifa state ipv6: Replace inet6_ifaddr->dead with state cxgb4: notify upper drivers if the device is already up when they load cxgb4: keep interrupts available when the ports are brought down cxgb4: fix initial addition of MAC address cnic: Return SPQ credit to bnx2x after ring setup and shutdown. cnic: Convert cnic_local_flags to atomic ops. can: Fix SJA1000 command register writes on SMP systems bridge: fix build for CONFIG_SYSFS disabled ARCNET: Limit com20020 PCI ID matches for SOHARD cards ... Fix up various conflicts with pcmcia tree drivers/net/ {pcmcia/3c589_cs.c, wireless/orinoco/orinoco_cs.c and wireless/orinoco/spectrum_cs.c} and feature removal (Documentation/feature-removal-schedule.txt). Also fix a non-content conflict due to pm_qos_requirement getting renamed in the PM tree (now pm_qos_request) in net/mac80211/scan.c
2010-05-14drivers/net: Remove unnecessary returns from void function()sJoe Perches
This patch removes from drivers/net/ all the unnecessary return; statements that precede the last closing brace of void functions. It does not remove the returns that are immediately preceded by a label as gcc doesn't like that. It also does not remove null void functions with return. Done via: $ grep -rP --include=*.[ch] -l "return;\n}" net/ | \ xargs perl -i -e 'local $/ ; while (<>) { s/\n[ \t\n]+return;\n}/\n}/g; print; }' with some cleanups by hand. Compile tested x86 allmodconfig only. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-05-12e1000e: add PCI device id to enable support for 82567V-4Bruce Allan
Signed-off-by: Bruce Allan <bruce.w.allan@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-05-12e1000e: move settting of flow control refresh timer to link setup codeBruce Allan
The flow control refresh timer value needs to be saved off so that it can be programmed into the approrpiate register when applicable but without a reset, e.g. when changing flow control parameters via ethtool. Signed-off-by: Bruce Allan <bruce.w.allan@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-05-12e1000e: s/w initiated LSC MSI-X interrupts not generated; no transmitBruce Allan
In MSI-X mode when an IMPI SoL session was active (i.e. the PHY reset was blocked), the LSC interrupt generated by s/w to start the watchdog which started the transmitter was not getting fired by the hardware because bit 24 (the 'other' cause bit) also needed to be set. Without an active SoL session, the PHY was reset which caused the h/w to fire the LSC interrupt. Signed-off-by: Bruce Allan <bruce.w.allan@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-05-12e1000e: initialize manageability (IPMI) pass-through in 82574/82583Bruce Allan
82574/82583 uses different registers/bits to setup manageability filters than all other parts supported by e1000e; set them accordingly for IPMI pass-through. Rename the function to better reflect what it does. Signed-off-by: Bruce Allan <bruce.w.allan@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-05-12e1000e: bad state after running ethtool diagnostics with AMT enabledBruce Allan
When running ethtool online diagnostics with no open interface, there is a short period of time where the driver relinquishes control of the adapter during which time AMT (manageability firmware) can put the adapter into an unknown state resulting in such things as link test failure, hardware hang, reporting an incorrect link speed, etc. Resetting the adapter during an open() resolves this by putting the adapter into a quiescent state. Signed-off-by: Bruce Allan <bruce.w.allan@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-05-10PM QOS updateMark Gross
This patch changes the string based list management to a handle base implementation to help with the hot path use of pm-qos, it also renames much of the API to use "request" as opposed to "requirement" that was used in the initial implementation. I did this because request more accurately represents what it actually does. Also, I added a string based ABI for users wanting to use a string interface. So if the user writes 0xDDDDDDDD formatted hex it will be accepted by the interface. (someone asked me for it and I don't think it hurts anything.) This patch updates some documentation input I got from Randy. Signed-off-by: markgross <mgross@linux.intel.com> Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2010-05-05e1000/e1000e: implement a simple interrupt moderationJesse Brandeburg
Back before e1000-7.3.20, the e1000 driver had a simple algorithm that managed interrupt moderation. The driver was updated in 7.3.20 to have the new "adaptive" interrupt moderation but we have customer requests to redeploy the old way as an option. This patch adds the old functionality back. The new functionality can be enabled via module parameter or at runtime via ethtool. Module parameter: (InterruptThrottleRate=4) to use this new moderation method. Ethtool method: ethtool -C ethX rx-usecs 4 Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-05-05e1000e: Save irq into netdev structureTom Herbert
Set net->devirq to pdev->irq. This should be consistent with other drivers. Signed-off-by: Tom Herbert <therbert@google.com> Acked-by: Bruce Allan <bruce.w.allan@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-05-05e1000e: reduce writes of RX producer ptrTom Herbert
Reduce number of writes to RX producer pointer. When alloc'ing RX buffers, only write the RX producer pointer once every E1000_RX_BUFFER_WRITE (16) buffers created. Signed-off-by: Tom Herbert <therbert@google.com> Acked-by: Bruce Allan <bruce.w.allan@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-05-05e1000e: save skb counts in TX to avoid cache missesTom Herbert
In e1000_tx_map, precompute number of segements and bytecounts which are derived from fields in skb; these are stored in buffer_info. When cleaning tx in e1000_clean_tx_irq use the values in the associated buffer_info for statistics counting, this eliminates cache misses on skb fields. Signed-off-by: Tom Herbert <therbert@google.com> Acked-by: Bruce Allan <bruce.w.allan@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-05-02Merge branch 'master' of ↵David S. Miller
master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
2010-04-30e1000e: Fix oops caused by ASPM patch.Anton Blanchard
Commit 6f461f6c7c961f0b1b73c0f27becf472a0ac606b ("e1000e: enable/disable ASPM L0s and L1 and ERT according to hardware errata") oopses on one of my ppc64 boxes with a NULL pointer (0x4a): Unable to handle kernel paging request for data at address 0x0000004a Faulting instruction address: 0xc0000000004d2f1c cpu 0xe: Vector: 300 (Data Access) at [c000000bec1833a0] pc: c0000000004d2f1c: .e1000e_disable_aspm+0xe0/0x150 lr: c0000000004d2f0c: .e1000e_disable_aspm+0xd0/0x150 dar: 4a [c000000bec1836d0] c00000000069b9d8 .e1000_probe+0x84/0xe8c [c000000bec1837b0] c000000000386d90 .local_pci_probe+0x4c/0x68 [c000000bec183840] c0000000003872ac .pci_device_probe+0xfc/0x148 [c000000bec183900] c000000000409e8c .driver_probe_device+0xe4/0x1d0 [c000000bec1839a0] c00000000040a024 .__driver_attach+0xac/0xf4 [c000000bec183a40] c000000000409124 .bus_for_each_dev+0x9c/0x10c [c000000bec183b00] c000000000409c1c .driver_attach+0x40/0x60 [c000000bec183b90] c0000000004085dc .bus_add_driver+0x150/0x328 [c000000bec183c40] c00000000040a58c .driver_register+0x100/0x1c4 [c000000bec183cf0] c00000000038764c .__pci_register_driver+0x78/0x128 Seems like pdev->bus->self == NULL. I haven't touched pci in a long time so I'm trying to remember what this means (no pcie bridge perhaps?) The patch below fixes the oops for me. Signed-off-by: Anton Blanchard <anton@samba.org> Reviewed-by: Bruce Allan <bruce.w.allan@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-27e1000e: add registers etc. printout code just before resetting adaptersTaku Izumi
This patch adds registers (,tx/rx rings' status and so on) printout code just before resetting adapters. This will be helpful for detecting the root cause of adapters reset. Signed-off-by: Taku Izumi <izumi.taku@jp.fujitsu.com> Signed-off-by: Koki Sanagi <sanagi.koki@jp.fujitsu.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-27e1000e: use DMA API instead of PCI DMA functionsNick Nunley
Signed-off-by: Nicholas Nunley <nicholasx.d.nunley@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-27Merge branch 'master' of ↵David S. Miller
master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 Conflicts: drivers/net/e100.c drivers/net/e1000e/netdev.c
2010-04-27e1000e: enable/disable ASPM L0s and L1 and ERT according to hardware errataBruce Allan
Prompted by a previous patch submitted by Matthew Garret <mjg@redhat.com>, 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 <mjg@redhat.com> Signed-off-by: Bruce Allan <bruce.w.allan@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-14drivers: net: use skb_headlen()Eric Dumazet
replaces (skb->len - skb->data_len) occurrences by skb_headlen(skb) Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-14Merge branch 'master' of ↵David S. Miller
master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 Conflicts: drivers/net/pcmcia/smc91c92_cs.c drivers/net/virtio_net.c
2010-04-13e1000e: stop cleaning when we reach tx_ring->next_to_useTerry Loftin
Tx ring buffers after tx_ring->next_to_use are volatile and could change, possibly causing a crash. Stop cleaning when we hit tx_ring->next_to_use. Signed-off-by: Terry Loftin <terry.loftin@hp.com> Acked-by: Bruce Allan <bruce.w.allan@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-11Merge branch 'master' of ↵David S. Miller
master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 Conflicts: drivers/net/stmmac/stmmac_main.c drivers/net/wireless/wl12xx/wl1271_cmd.c drivers/net/wireless/wl12xx/wl1271_main.c drivers/net/wireless/wl12xx/wl1271_spi.c net/core/ethtool.c net/mac80211/scan.c
2010-04-06Merge branch 'master' of ↵David S. Miller
master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 Conflicts: drivers/net/bonding/bond_main.c drivers/net/via-velocity.c drivers/net/wireless/iwlwifi/iwl-agn.c
2010-04-03net: convert multicast list to list_headJiri Pirko
Converts the list and the core manipulating with it to be the same as uc_list. +uses two functions for adding/removing mc address (normal and "global" variant) instead of a function parameter. +removes dev_mcast.c completely. +exposes netdev_hw_addr_list_* macros along with __hw_addr_* functions for manipulation with lists on a sandbox (used in bonding and 80211 drivers) Signed-off-by: Jiri Pirko <jpirko@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-30include cleanup: Update gfp.h and slab.h includes to prepare for breaking ↵Tejun Heo
implicit slab.h inclusion from percpu.h percpu.h is included by sched.h and module.h and thus ends up being included when building most .c files. percpu.h includes slab.h which in turn includes gfp.h making everything defined by the two files universally available and complicating inclusion dependencies. percpu.h -> slab.h dependency is about to be removed. Prepare for this change by updating users of gfp and slab facilities include those headers directly instead of assuming availability. As this conversion needs to touch large number of source files, the following script is used as the basis of conversion. http://userweb.kernel.org/~tj/misc/slabh-sweep.py The script does the followings. * Scan files for gfp and slab usages and update includes such that only the necessary includes are there. ie. if only gfp is used, gfp.h, if slab is used, slab.h. * When the script inserts a new include, it looks at the include blocks and try to put the new include such that its order conforms to its surrounding. It's put in the include block which contains core kernel includes, in the same order that the rest are ordered - alphabetical, Christmas tree, rev-Xmas-tree or at the end if there doesn't seem to be any matching order. * If the script can't find a place to put a new include (mostly because the file doesn't have fitting include block), it prints out an error message indicating which .h file needs to be added to the file. The conversion was done in the following steps. 1. The initial automatic conversion of all .c files updated slightly over 4000 files, deleting around 700 includes and adding ~480 gfp.h and ~3000 slab.h inclusions. The script emitted errors for ~400 files. 2. Each error was manually checked. Some didn't need the inclusion, some needed manual addition while adding it to implementation .h or embedding .c file was more appropriate for others. This step added inclusions to around 150 files. 3. The script was run again and the output was compared to the edits from #2 to make sure no file was left behind. 4. Several build tests were done and a couple of problems were fixed. e.g. lib/decompress_*.c used malloc/free() wrappers around slab APIs requiring slab.h to be added manually. 5. The script was run on all .h files but without automatically editing them as sprinkling gfp.h and slab.h inclusions around .h files could easily lead to inclusion dependency hell. Most gfp.h inclusion directives were ignored as stuff from gfp.h was usually wildly available and often used in preprocessor macros. Each slab.h inclusion directive was examined and added manually as necessary. 6. percpu.h was updated not to include slab.h. 7. Build test were done on the following configurations and failures were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my distributed build env didn't work with gcov compiles) and a few more options had to be turned off depending on archs to make things build (like ipr on powerpc/64 which failed due to missing writeq). * x86 and x86_64 UP and SMP allmodconfig and a custom test config. * powerpc and powerpc64 SMP allmodconfig * sparc and sparc64 SMP allmodconfig * ia64 SMP allmodconfig * s390 SMP allmodconfig * alpha SMP allmodconfig * um on x86_64 SMP allmodconfig 8. percpu.h modifications were reverted so that it could be applied as a separate patch and serve as bisection point. Given the fact that I had only a couple of failures from tests on step 6, I'm fairly confident about the coverage of this conversion patch. If there is a breakage, it's likely to be something in one of the arch headers which should be easily discoverable easily on most builds of the specific arch. Signed-off-by: Tejun Heo <tj@kernel.org> Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
2010-03-26e1000e: Use pr_<level> and netdev_<level>Bruce Allan
As an alternative to a quite large patch previously submitted by Joe Perches to make use of kernel logging API, this patch is much less intrusive. Convert e_<level> to netdev_<level> Use #define pr_fmt Convert a few printks to pr_<level> Cc: Joe Perches <joe@perches.com> Signed-off-by: Bruce Allan <bruce.w.allan@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-26e1000e: do not modify tx_queue_len on link speed changeEmil Tantilov
Previously the driver tweaked txqueuelen to avoid false Tx hang reports seen at half duplex. This had the effect of overriding user set values on link change/reset. Testing shows that adjusting only the timeout factor is sufficient to prevent Tx hang reports at half duplex. This patch removes all instances of tx_queue_len in the driver. Originally reported and patched by Franco Fichtner CC: Franco Fichtner <franco@lastsummer.de> Signed-off-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>
2010-03-17Net / e1000e: Fix build issue introduced by runtime PM patchRafael J. Wysocki
The recent PCI runtime PM patch broke build for CONFIG_PM_RUNTIME and CONFIG_PM_SLEEP undefined. Fix that by moving the PM callbacks under suitable #ifdefs. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-16e1000e: Fix build with CONFIG_PM disabled.David S. Miller
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-16e1000e / PCI / PM: Add basic runtime PM support (rev. 4)Rafael J. Wysocki
Use the PCI runtime power management framework to add basic PCI runtime PM support to the e1000e driver. Namely, make the driver suspend the device when the link is off and set it up for generating a wakeup event after the link has been detected again. [This feature is disabled until the user space enables it with the help of the /sys/devices/.../power/contol device attribute.] Based on a patch from Matthew Garrett. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-05net: e1000e: convert to use mc helpersJiri Pirko
Signed-off-by: Jiri Pirko <jpirko@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-04e1000e: Fix namespace conflicts wrt. e1000_has_linkDavid S. Miller
Reported by Stephen Rothwell. Signed-off-by: David S. Miller <davem@davemloft.net>
2010-01-28Merge branch 'master' of ↵David S. Miller
master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
2010-01-23net: Fix IPv6 GSO type checks in Intel ethernet driversSridhar Samudrala
Found this problem when testing IPv6 from a KVM guest to a remote host via e1000e device on the host. The following patch fixes the check for IPv6 GSO packet in Intel ethernet drivers to use skb_is_gso_v6(). SKB_GSO_DODGY is also set when packets are forwarded from a guest. Signed-off-by: Sridhar Samudrala <sri@us.ibm.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-01-23e1000/e1000e: don't use small hardware rx buffersJesse Brandeburg
When testing the "e1000: enhance frame fragment detection" (and e1000e) patches we found some bugs with reducing the MTU size. The 1024 byte descriptor used with the 1000 mtu test also (re) introduced the (originally) reported bug, and causes us to need the e1000_clean_tx_irq "enhance frame fragment detection" fix. So what has occured here is that 2.6.32 is only vulnerable for mtu < 1500 due to the jumbo specific routines in both e1000 and e1000e. So, 2.6.32 needs the 2kB buffer len fix for those smaller MTUs, but is not vulnerable to the original issue reported. It has been pointed out that this vulnerability needs to be patched in older kernels that don't have the e1000 jumbo routine. Without the jumbo routines, we need the "enhance frame fragment detection" fix the e1000, old e1000e is only vulnerable for < 1500 mtu, and needs a similar fix. We split the patches up to provide easy backport paths. There is only a slight bit of extra code when this fix and the original "enhance frame fragment detection" fixes are applied, so please apply both, even though it is a bit of overkill. Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-01-23Merge branch 'master' of ↵David S. Miller
master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
2010-01-20e1000e: enhance frame fragment detectionJesse Brandeburg
Originally patched by Neil Horman <nhorman@tuxdriver.com> e1000e could with a jumbo frame enabled interface, and packet split disabled, receive a packet that would overflow a single rx buffer. While in practice very hard to craft a packet that could abuse this, it is possible. this is related to CVE-2009-4538 Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> CC: Neil Horman <nhorman@tuxdriver.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-01-20e1000/e1000e/igb/igbvf/ixgb/ixgbe: Fix tests of unsigned in *_tx_map()Roel Kluin
The variable count and i are unsigned so the (<|>=)0 tests do not work. Signed-off-by: Roel Kluin <roel.kluin@gmail.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-01-13e1000e: genericize the update multicast address listBruce Allan
Make updating the multicast address list generic for all families and enforce the requirement to update the entire multicast table array all at once instead of piecemeal which causes problems on some parts. Signed-off-by: Bruce Allan <bruce.w.allan@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-01-13e1000e: use alternate MAC address on ESB2 if availableBruce Allan
Similar to 82571/2/3 parts that already do this, if ESB2/80003es2lan parts have an alternate MAC address provided in the EEPROM use it instead of the default MAC address. This patch makes the the actual code that does this generic so that it can be better used by both MAC families. Signed-off-by: Bruce Allan <bruce.w.allan@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-01-10Merge branch 'master' of ↵David S. Miller
master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 Conflicts: drivers/net/benet/be_cmds.h include/linux/sysctl.h
2010-01-08e1000e: don't accumulate PHY statistics on PHY read failureBruce Allan
Signed-off-by: Bruce Allan <bruce.w.allan@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-01-08e1000e: call pci_save_state() after pci_restore_state()Bruce Allan
Due to a change in pci_restore_state()[1] which clears the saved_state flag, the driver should call pci_save_state() to set the flag once again to avoid issues with EEH (same fix that recently was submitted for ixgbe). [1] commmit 4b77b0a2ba27d64f58f16d8d4d48d8319dda36ff Signed-off-by: Bruce Allan <bruce.w.allan@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-01-07drivers/net/: use DEFINE_PCI_DEVICE_TABLE()Alexey Dobriyan
Use DEFINE_PCI_DEVICE_TABLE() so we get place PCI ids table into correct section in every case. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-12-08e1000e: minor correction to name of bit in CTRL_EXT registerBruce Allan
Bit 7 in the CTRL_REG register is actually the Software Definable Pin 3, not the Software Definable Pin 7. Signed-off-by: Bruce Allan <bruce.w.allan@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-12-03drivers/net: Move && and || to end of previous lineJoe Perches
Only files where David Miller is the primary git-signer. wireless, wimax, ixgbe, etc are not modified. Compile tested x86 allyesconfig only Not all files compiled (not x86 compatible) Added a few > 80 column lines, which I ignored. Existing checkpatch complaints ignored. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>