- 19 Jan, 2014 1 commit
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Michal Sekletar authored
For user space packet capturing libraries such as libpcap, there's currently only one way to check which BPF extensions are supported by the kernel, that is, commit aa1113d9 ("net: filter: return -EINVAL if BPF_S_ANC* operation is not supported"). For querying all extensions at once this might be rather inconvenient. Therefore, this patch introduces a new option which can be used as an argument for getsockopt(), and allows one to obtain information about which BPF extensions are supported by the current kernel. As David Miller suggests, we do not need to define any bits right now and status quo can just return 0 in order to state that this versions supports SKF_AD_PROTOCOL up to SKF_AD_PAY_OFFSET. Later additions to BPF extensions need to add their bits to the bpf_tell_extensions() function, as documented in the comment. Signed-off-by:
Michal Sekletar <msekleta@redhat.com> Cc: David Miller <davem@davemloft.net> Reviewed-by:
Daniel Borkmann <dborkman@redhat.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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- 18 Jan, 2014 39 commits
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git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller authored
Conflicts: drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c net/ipv4/tcp_metrics.c Overlapping changes between the "don't create two tcp metrics objects with the same key" race fix in net and the addition of the destination address in the lookup key in net-next. Minor overlapping changes in bnx2x driver. Signed-off-by: -
git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds authored
Pull networking fixes from David Miller: 1) The value choosen for the new SO_MAX_PACING_RATE socket option on parisc was very poorly choosen, let's fix it while we still can. From Eric Dumazet. 2) Our generic reciprocal divide was found to handle some edge cases incorrectly, part of this is encoded into the BPF as deep as the JIT engines themselves. Just use a real divide throughout for now. From Eric Dumazet. 3) Because the initial lookup is lockless, the TCP metrics engine can end up creating two entries for the same lookup key. Fix this by doing a second lookup under the lock before we actually create the new entry. From Christoph Paasch. 4) Fix scatter-gather list init in usbnet driver, from Bjørn Mork. 5) Fix unintended 32-bit truncation in cxgb4 driver's bit shifting. From Dan Carpenter. 6) Netlink socket dumping uses the wrong socket state for timewait sockets. Fix from Neal Cardwell. 7) Fix netlink memory leak in ieee802154_add_iface(), from Christian Engelmayer. 8) Multicast forwarding in ipv4 can overflow the per-rule reference counts, causing all multicast traffic to cease. Fix from Hannes Frederic Sowa. 9) via-rhine needs to stop all TX queues when it resets the device, from Richard Weinberger. 10) Fix RDS per-cpu accesses broken by the this_cpu_* conversions. From Gerald Schaefer. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: s390/bpf,jit: fix 32 bit divisions, use unsigned divide instructions parisc: fix SO_MAX_PACING_RATE typo ipv6: simplify detection of first operational link-local address on interface tcp: metrics: Avoid duplicate entries with the same destination-IP net: rds: fix per-cpu helper usage e1000e: Fix compilation warning when !CONFIG_PM_SLEEP bpf: do not use reciprocal divide be2net: add dma_mapping_error() check for dma_map_page() bnx2x: Don't release PCI bars on shutdown net,via-rhine: Fix tx_timeout handling batman-adv: fix batman-adv header overhead calculation qlge: Fix vlan netdev features. net: avoid reference counter overflows on fib_rules in multicast forwarding dm9601: add USB IDs for new dm96xx variants MAINTAINERS: add virtio-dev ML for virtio ieee802154: Fix memory leak in ieee802154_add_iface() net: usbnet: fix SG initialisation inet_diag: fix inet_diag_dump_icsk() to use correct state for timewait sockets cxgb4: silence shift wrapping static checker warning -
David S. Miller authored
Aaron Brown says: ==================== Intel Wired LAN Driver Updates This series contains updates from Emil to ixgbevf. He cleans up the code by removing the adapter structure as a parameter from multiple functions in favor of using the ixgbevf_ring structure and moves hot-path specific statistic int the ring structure for anticipated performance gains. He also removes the Tx/Rx counters for checksum offload and adds counters for tx_restart_queue and tx_timeout_count. Next he makes it so that the first tx_buffer structure acts as a central storage location for most the skb info we are about to transmit, then takes advantage of the dma buffer always being present in the first descriptor and mapped as single allowing a call to dma_unmap_single which alleviates the need to check for DMA mapping in ixgbevf_clean_tx_irq(). Finally he merges the ixgbevf_tx_map call and the ixgbevf_tx_queue call into a single function. ==================== Signed-off-by: -
Emil Tantilov authored
This change merges the ixgbevf_tx_map call and the ixgbevf_tx_queue call into a single function. In order to make room for this setting of cmd_type and olinfo flags is done in separate functions. Signed-off-by:
Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by:
Emil Tantilov <emil.s.tantilov@intel.com> Tested-by:
Phil Schmitt <phillip.j.schmitt@intel.com> Signed-off-by:
Aaron Brown <aaron.f.brown@intel.com> Signed-off-by:
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Emil Tantilov authored
This patch takes advantage of the dma buffer always being present in the first descriptor and mapped as single. As such we can call dma_unmap_single and don't need to check for DMA mapping in ixgbevf_clean_tx_irq(). In addition this patch makes use of the DMA API. Signed-off-by:
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Emil Tantilov authored
This change makes it so that the first tx_buffer structure acts as a central storage location for most of the info about the skb we are about to transmit. In addition this patch makes tx_flags part of the ixgbevf_tx_buffer struct. This allows us to use the flags directly from the stucture and as result removes the tx_flags parameter from some functions. Also as a cleanup mapped_as_page is folded into tx_flags and some unused flags were removed. Signed-off-by:
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Emil Tantilov authored
This patch adds counters for tx_restart_queue and tx_timeout_count. Signed-off-by:
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Emil Tantilov authored
This patch removes the Tx/Rx counters for checksum offload. The Tx counter was never updated and the Rx counter is of limited use. This is in effort to clean up the counters and make them consistent with the counters shown by ixgbe. Also this patch removes some members of the adapter structure that were never used and shuffles others to reduce number of holes. before: /* size: 1568, cachelines: 25, members: 48 */ /* sum members: 1519, holes: 10, sum holes: 43 */ /* padding: 6 */ /* last cacheline: 32 bytes */ after: /* size: 1480, cachelines: 24, members: 43 */ /* sum members: 1479, holes: 1, sum holes: 1 */ /* last cacheline: 8 bytes */ Signed-off-by:
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Emil Tantilov authored
This patch moves hot-path specific statistics into the ring structure. This allows us to drop the adapter structure in some functions and should help with performance. Signed-off-by:
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Emil Tantilov authored
This patch cleans up the code by removing the adapter structure as parameter from multiple functions. The adapter structure was previously being used to access the dev pointer, but this can also be done via the ixgbevf_ring structure. This way we can drop the adapter as parameter from these functions. This patch also includes small cleanups in some error code paths. Signed-off-by:
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David S. Miller authored
Aaron Brown says: ==================== Intel Wired LAN Driver Updates This series contains updates to i40e. Neerav implements DCB and DCBNL support and adds DCB options to Kconfig. DCB is disabled by default. Anjali refactors flow control director to fix inconsistencies that were preventing clean unloads of the driver, move the queues for handling flow director error into their own hardware VSI and implement a corrected version of the basic ethtool add ntuple rule. Jesse provides fixes for a compiler warning, firmware workaround, white space fixes and renames some defines. Shannon reworks the device ID #defines to follow the DEV_ID_ convention followed by our other drivers. ==================== Signed-off-by: -
Stephen Warren authored
It's now built as a separate utility module, and enabling BT selects that module in Kconfig. This fixes: net/ieee802154/built-in.o:(___ksymtab_gpl+lowpan_process_data+0x0): multiple definition of `__ksymtab_lowpan_process_data' net/bluetooth/built-in.o:(___ksymtab_gpl+lowpan_process_data+0x0): first defined here net/ieee802154/built-in.o:(___ksymtab_gpl+lowpan_header_compress+0x0): multiple definition of `__ksymtab_lowpan_header_compress' net/bluetooth/built-in.o:(___ksymtab_gpl+lowpan_header_compress+0x0): first defined here net/ieee802154/built-in.o: In function `lowpan_header_compress': net/ieee802154/6lowpan_iphc.c:606: multiple definition of `lowpan_header_compress' net/bluetooth/built-in.o:/home/swarren/shared/git_wa/kernel/kernel.git/net/bluetooth/../ieee802154/6lowpan_iphc.c:606: first defined here net/ieee802154/built-in.o: In function `lowpan_process_data': net/ieee802154/6lowpan_iphc.c:344: multiple definition of `lowpan_process_data' net/bluetooth/built-in.o:/home/swarren/shared/git_wa/kernel/kernel.git/net/bluetooth/../ieee802154/6lowpan_iphc.c:344: first defined here make[1]: *** [net/built-in.o] Error 1 (this change probably simply wasn't "git add"d to a53d34c3) Fixes: a53d34c3 ("net: move 6lowpan compression code to separate module") Fixes: 18722c24 ("Bluetooth: Enable 6LoWPAN support for BT LE devices") Signed-off-by:
Stephen Warren <swarren@nvidia.com> Acked-by:
Randy Dunlap <rdunlap@infradead.org> Signed-off-by:
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Shannon Nelson authored
Rework the device ID #defines to follow the _DEV_ID convention already established in the other Intel drivers. Signed-off-by:
Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by:
Shannon Nelson <shannon.nelson@intel.com> Signed-off-by:
Jesse Brandeburg <jesse.brandeburg@intel.com> Tested-by:
Kavindya Deegala <kavindya.s.deegala@intel.com> Signed-off-by:
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Neerav Parikh authored
Allow compiling DCB related files if I40E_DCB option is supported in the kernel configuration. DCB is disabled by default. Signed-off-by:
Neerav Parikh <Neerav.Parikh@intel.com> Signed-off-by:
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Neerav Parikh authored
This patch adds capability to configure DCB on i40e network interfaces using Intel XL710 adapter firmware APIs. By default all VSIs are only enabled for the default traffic class enabled by firmware for any given PF. The driver would query the firmware for the traffic classes that are enabled for the port and reconfigure the LAN VSI to match to the port traffic class settings. All other VSIs are only enabled for the default traffic class settings for now. The driver registers and listens to firmware events that may require change in the DCB settings. It may reconfigure the VSI settings based on these events. This patch exposes IEEE DCBNL interfaces for the i40e driver to allow any application to query the DCB settings on the adapter. Signed-off-by:
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Neerav Parikh authored
Intel XL710 series of adapters support QoS as per the IEEE 802.1 DCB (Data Center Bridging) standard. This is supported in conjuction with: - Enhanced Transmission Selection (ETS) - IEEE 802.1Qaz - Priority Flow Control (PFC) - IEEE 802.1Qbb - DCB eXchange Protocol (DCBX) - IEEE 802.1Qaz On Intel XL710 adapters DCBX is performed by the adapter firmware. The firmware runs DCBX in willing mode and configures the port as per the DCB settings recommended by it's link partner. By default in absence of any DCBX; firmware would configure the port with a single traffic class and all of the port bandwith will be allocated to that traffic class. This patch adds functions and calls to support querying and configuring DCB using firmware APIs. Signed-off-by:
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Anjali Singhai Jain authored
The i40e hardware was generating some inconsistent results when using current programming methods. This refactor fixes the inconsistencies that were preventing clean unloads of the driver, and moves the queues for handling flow director errors into their own hardware VSI. This patch also implements a corrected version of the basic ethtool add ntuple rule, which will disable the driver's automatic flow programming. A future patch adds remove/replay/list support for ntuple. Signed-off-by:
Anjali Singhai Jain <anjali.singhai@intel.com> Signed-off-by:
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Jesse Brandeburg authored
The FLAG_FDIR_* defines can be renamed to be more descriptive. This patch is in preparation for the following where the fdir code is refactored. Signed-off-by:
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Jesse Brandeburg authored
Fix more whitespace issues, including making some locals declared in a nicer order. Also update Copyright string printed when the driver loads. Signed-off-by:
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Jesse Brandeburg authored
Remove a workaround that is no longer necessary and implement a better understanding of what firmware is returning in the MSI-X vector count. This makes it so that the driver ends up with the right amount of queues when using all available MSI-X vectors. Change-ID: I34e60cc71dcfb1b5412f37df956fedcc49ade187 Signed-off-by:
Catherine Sullivan <catherine.sullivan@intel.com> Signed-off-by:
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Jesse Brandeburg authored
Compile testing with higher warning levels found this complaint: i40e_nvm.c: warning: 'checksum_local' may be used uninitialized in this function Signed-off-by:
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Stephen Warren authored
It's now built as a separate utility module, and enabling BT selects that module in Kconfig. This fixes: net/ieee802154/built-in.o:(___ksymtab_gpl+lowpan_process_data+0x0): multiple definition of `__ksymtab_lowpan_process_data' net/bluetooth/built-in.o:(___ksymtab_gpl+lowpan_process_data+0x0): first defined here net/ieee802154/built-in.o:(___ksymtab_gpl+lowpan_header_compress+0x0): multiple definition of `__ksymtab_lowpan_header_compress' net/bluetooth/built-in.o:(___ksymtab_gpl+lowpan_header_compress+0x0): first defined here net/ieee802154/built-in.o: In function `lowpan_header_compress': net/ieee802154/6lowpan_iphc.c:606: multiple definition of `lowpan_header_compress' net/bluetooth/built-in.o:/home/swarren/shared/git_wa/kernel/kernel.git/net/bluetooth/../ieee802154/6lowpan_iphc.c:606: first defined here net/ieee802154/built-in.o: In function `lowpan_process_data': net/ieee802154/6lowpan_iphc.c:344: multiple definition of `lowpan_process_data' net/bluetooth/built-in.o:/home/swarren/shared/git_wa/kernel/kernel.git/net/bluetooth/../ieee802154/6lowpan_iphc.c:344: first defined here make[1]: *** [net/built-in.o] Error 1 (this change probably simply wasn't "git add"d to a53d34c3) Fixes: a53d34c3 ("net: move 6lowpan compression code to separate module") Fixes: 18722c24 ("Bluetooth: Enable 6LoWPAN support for BT LE devices") Signed-off-by:
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Michael Dalton authored
Commit ab7db917 ("virtio-net: auto-tune mergeable rx buffer size for improved performance") introduced a virtio-net dependency on EWMA. The inclusion of EWMA is controlled by CONFIG_AVERAGE. Fix build error when CONFIG_AVERAGE is not enabled by adding select AVERAGE to virtio-net's Kconfig entry. Build failure reported using config make ARCH=s390 defconfig. Signed-off-by:
Michael Dalton <mwdalton@google.com> Acked-by:
Jason Wang <jasowang@redhat.com> Signed-off-by:
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David S. Miller authored
Aaron Brown says: ==================== Intel Wired LAN Driver Updates This series contains an updates to ixgbe and ixgbevf. Jacob add braces around some ixgbe_qv_lock_* calls lto better adhere to Kernel style guidelines. Don bumps the versions on ixgbe and ixgbevf to match internal driver functionality better. ==================== Reviewed-by:
Ding Tianhong <dingtianhong@huawei.com> Signed-off-by:
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Don Skidmore authored
Bump the version number to better match functionality provided with out of tree driver of the same version. Signed-off-by:
Don Skidmore <donald.c.skidmore@intel.com> Tested-by:
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Don Skidmore authored
Bump the version number to better match functionality provided with out of tree driver of the same version. Signed-off-by:
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Jacob Keller authored
This patch adds braces around the ixgbe_qv_lock_* calls which previously only had braces around the if portion. Kernel style guidelines for this require parenthesis around all conditions if they are required around one. In addition the comment while not illegal C syntax makes the code look wrong at a cursory glance. This patch corrects the style and adds braces so that the full if-else block is uniform. Signed-off-by:
Jacob Keller <jacob.e.keller@intel.com> Tested-by:
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Heiko Carstens authored
The s390 bpf jit compiler emits the signed divide instructions "dr" and "d" for unsigned divisions. This can cause problems: the dividend will be zero extended to a 64 bit value and the divisor is the 32 bit signed value as specified A or X accumulator, even though A and X are supposed to be treated as unsigned values. The divide instrunctions will generate an exception if the result cannot be expressed with a 32 bit signed value. This is the case if e.g. the dividend is 0xffffffff and the divisor either 1 or also 0xffffffff (signed: -1). To avoid all these issues simply use unsigned divide instructions. Signed-off-by:
Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by:
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Eric Dumazet authored
In order to get correct drop monitor notifications for dropped packets, we should call kfree_skb() instead of dev_kfree_skb() Signed-off-by:
Eric Dumazet <edumazet@google.com> Signed-off-by:
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David S. Miller authored
Scott Feldman says: ==================== bonding: add slave netlink and sysfs support v2: - Address review comment from Ding (and Veacesiav): handle kobj cleanup if sysfs_create_file() fails when adding slave attribute nodes. v1: The following series adds bonding slave netlink and sysfs interfaces. Slave interfaces get a new IFLA_SLAVE set of netlink attributes, along with RTM_NEWLINK notification when slave's active status changes. The sysfs interface adds read-only nodes for slave attributes under a /slave dir, simliar to how bond interfaces get a /bonding dir for bonding attributes. ==================== Reviewed-by: -
sfeldma@cumulusnetworks.com authored
If link is IFF_SLAVE, extend link dev netlink attributes to include slave attributes with new IFLA_SLAVE nest. Add netlink notification (RTM_NEWLINK) when slave status changes from backup to active, or visa-versa. Adds new ndo_get_slave op to net_device_ops to fill skb with IFLA_SLAVE attributes. Currently only used by bonding driver, but could be used by other aggregating devices with slaves. Signed-off-by:
Scott Feldman <sfeldma@cumulusnetworks.com> Signed-off-by:
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sfeldma@cumulusnetworks.com authored
Add sub-directory under /sys/class/net/<interface>/slave with read-only attributes for slave. Directory only appears when <interface> is a slave. $ tree /sys/class/net/eth2/slave/ /sys/class/net/eth2/slave/ ├── ad_aggregator_id ├── link_failure_count ├── mii_status ├── perm_hwaddr ├── queue_id └── state $ cat /sys/class/net/eth2/slave/* 2 0 up 40:02:10:ef:06:01 0 active Signed-off-by:
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Daniel Borkmann authored
Jesse Brandeburg reported that commit acaf4e70 caused a panic when adding a network namespace while vxlan module was present in the system: [<ffffffff814d0865>] vxlan_lowerdev_event+0xf5/0x100 [<ffffffff816e9e5d>] notifier_call_chain+0x4d/0x70 [<ffffffff810912be>] __raw_notifier_call_chain+0xe/0x10 [<ffffffff810912d6>] raw_notifier_call_chain+0x16/0x20 [<ffffffff815d9610>] call_netdevice_notifiers_info+0x40/0x70 [<ffffffff815d9656>] call_netdevice_notifiers+0x16/0x20 [<ffffffff815e1bce>] register_netdevice+0x1be/0x3a0 [<ffffffff815e1dce>] register_netdev+0x1e/0x30 [<ffffffff814cb94a>] loopback_net_init+0x4a/0xb0 [<ffffffffa016ed6e>] ? lockd_init_net+0x6e/0xb0 [lockd] [<ffffffff815d6bac>] ops_init+0x4c/0x150 [<ffffffff815d6d23>] setup_net+0x73/0x110 [<ffffffff815d725b>] copy_net_ns+0x7b/0x100 [<ffffffff81090e11>] create_new_namespaces+0x101/0x1b0 [<ffffffff81090f45>] copy_namespaces+0x85/0xb0 [<ffffffff810693d5>] copy_process.part.26+0x935/0x1500 [<ffffffff811d5186>] ? mntput+0x26/0x40 [<ffffffff8106a15c>] do_fork+0xbc/0x2e0 [<ffffffff811b7f2e>] ? ____fput+0xe/0x10 [<ffffffff81089c5c>] ? task_work_run+0xac/0xe0 [<ffffffff8106a406>] SyS_clone+0x16/0x20 [<ffffffff816ee689>] stub_clone+0x69/0x90 [<ffffffff816ee329>] ? system_call_fastpath+0x16/0x1b Apparently loopback device is being registered first and thus we receive an event notification when vxlan_net is not ready. Hence, when we call net_generic() and request vxlan_net_id, we seem to access garbage at that point in time. In setup_net() where we set up a newly allocated network namespace, we traverse the list of pernet ops ... list_for_each_entry(ops, &pernet_list, list) { error = ops_init(ops, net); if (error < 0) goto out_undo; } ... and loopback_net_init() is invoked first here, so in the middle of setup_net() we get this notification in vxlan. As currently we only care about devices that unregister, move access through net_generic() there. Fix is based on Cong Wang's proposal, but only changes what is needed here. It sucks a bit as we only work around the actual cure: right now it seems the only way to check if a netns actually finished traversing all init ops would be to check if it's part of net_namespace_list. But that I find quite expensive each time we go through a notifier callback. Anyway, did a couple of tests and it seems good for now. Fixes: acaf4e70 ("net: vxlan: when lower dev unregisters remove vxlan dev as well") Reported-by:
Cong Wang <xiyou.wangcong@gmail.com> Signed-off-by:
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David S. Miller authored
Aaron Brown says: ==================== Intel Wired LAN Driver Updates This series contains updates to ixgbe Ethan Zhao. The first one replaces the magic number "63" with a macro, IXGBE_MAX_VFS_DRV_LIMIT, the second moves the call to set driver_max_VFS to before SRIOV is enabled. The code of these patches match the v3 (1/2) and v2 (2/2) versions sent to the e1000-devel and netdev mailing lists. The intermediate versions (v4, v5) are from sorting out style issues, mostly tabs to spaces and split lines probably introduced via mailer. ==================== Signed-off-by: -
ethan.zhao authored
commit 43dc4e01 Limit number of reported VFs to device specific value It doesn't work and always returns -EBUSY because VFs are already enabled. ixgbe_enable_sriov() pci_enable_sriov() sriov_enable() { ... .. iov->ctrl |= PCI_SRIOV_CTRL_VFE | PCI_SRIOV_CTRL_MSE; pci_cfg_access_lock(dev); ... ... } pci_sriov_set_totalvfs() { ... ... if (dev->sriov->ctrl & PCI_SRIOV_CTRL_VFE) return -EBUSY; ... } So should set driver_max_VFs with pci_sriov_set_totalvfs() before enable VFs with ixgbe_enable_sriov(). V2: revised for net-next tree. Signed-off-by:
Ethan Zhao <ethan.kernel@gmail.com> Tested-by:
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ethan.zhao authored
Because ixgbe driver limit the max number of VF functions could be enabled to 63, so define one macro IXGBE_MAX_VFS_DRV_LIMIT and cleanup the const 63 in code. v3: revised for net-next tree. Signed-off-by:
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Eric Dumazet authored
This patch : 1) Remove a dst leak if DST_NOCACHE was set on dst Fix this by holding a reference only if dst really cached. 2) Remove a lockdep warning in __tunnel_dst_set() This was reported by Cong Wang. 3) Remove usage of a spinlock where xchg() is enough 4) Remove some spurious inline keywords. Let compiler decide for us. Fixes: 7d442fab ("ipv4: Cache dst in tunnels") Signed-off-by: -
Simon Horman authored
The r7s72100 SoC includes a fast ethernet controller. Signed-off-by:
Simon Horman <horms+renesas@verge.net.au> Acked-by:
Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> Signed-off-by:
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Simon Horman authored
Return a boolean from sh_eth_is_gether() and refactor it as a one-liner. Signed-off-by:
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