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* net: remove eth_change_mtuHeiner Kallweit2020-01-271-1/+0
| | | | | | | | | | All usage of this function was removed three years ago, and the function was marked as deprecated: a52ad514fdf3 ("net: deprecate eth_change_mtu, remove usage") So I think we can remove it now. Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152Thomas Gleixner2019-05-301-6/+1
| | | | | | | | | | | | | | | | | | | | | Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 3029 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070032.746973796@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-nextDavid S. Miller2019-04-281-1/+1
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Daniel Borkmann says: ==================== pull-request: bpf-next 2019-04-28 The following pull-request contains BPF updates for your *net-next* tree. The main changes are: 1) Introduce BPF socket local storage map so that BPF programs can store private data they associate with a socket (instead of e.g. separate hash table), from Martin. 2) Add support for bpftool to dump BTF types. This is done through a new `bpftool btf dump` sub-command, from Andrii. 3) Enable BPF-based flow dissector for skb-less eth_get_headlen() calls which was currently not supported since skb was used to lookup netns, from Stanislav. 4) Add an opt-in interface for tracepoints to expose a writable context for attached BPF programs, used here for NBD sockets, from Matt. 5) BPF xadd related arm64 JIT fixes and scalability improvements, from Daniel. 6) Change the skb->protocol for bpf_skb_adjust_room() helper in order to support tunnels such as sit. Add selftests as well, from Willem. 7) Various smaller misc fixes. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
| * net: pass net_device argument to the eth_get_headlenStanislav Fomichev2019-04-231-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Update all users of eth_get_headlen to pass network device, fetch network namespace from it and pass it down to the flow dissector. This commit is a noop until administrator inserts BPF flow dissector program. Cc: Maxim Krasnyansky <maxk@qti.qualcomm.com> Cc: Saeed Mahameed <saeedm@mellanox.com> Cc: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Cc: intel-wired-lan@lists.osuosl.org Cc: Yisen Zhuang <yisen.zhuang@huawei.com> Cc: Salil Mehta <salil.mehta@huawei.com> Cc: Michael Chan <michael.chan@broadcom.com> Cc: Igor Russkikh <igor.russkikh@aquantia.com> Signed-off-by: Stanislav Fomichev <sdf@google.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
* | net/ncsi: handle overflow when incrementing mac addressTao Ren2019-04-231-0/+12
|/ | | | | | | | | | | | | | | | Previously BMC's MAC address is calculated by simply adding 1 to the last byte of network controller's MAC address, and it produces incorrect result when network controller's MAC address ends with 0xFF. The problem can be fixed by calling eth_addr_inc() function to increment MAC address; besides, the MAC address is also validated before assigning to BMC. Fixes: cb10c7c0dfd9 ("net/ncsi: Add NCSI Broadcom OEM command") Signed-off-by: Tao Ren <taoren@fb.com> Acked-by: Jakub Kicinski <jakub.kicinski@netronome.com> Acked-by: Samuel Mendoza-Jonas <sam@mendozajonas.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net/ethernet: Add parse_protocol header_ops supportMaxim Mikityanskiy2019-02-221-0/+1
| | | | | | | | | The previous commit introduced parse_protocol callback which should extract the protocol number from the L2 header. Make all Ethernet devices support it. Signed-off-by: Maxim Mikityanskiy <maximmi@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: ethernet: provide nvmem_get_mac_address()Bartosz Golaszewski2018-12-031-0/+1
| | | | | | | | | We already have of_get_nvmem_mac_address() but some non-DT systems want to read the MAC address from NVMEM too. Implement a generalized routine that takes struct device as argument. Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: Convert GRO SKB handling to list_head.David Miller2018-06-261-2/+1
| | | | | | | | | | | | | | | Manage pending per-NAPI GRO packets via list_head. Return an SKB pointer from the GRO receive handlers. When GRO receive handlers return non-NULL, it means that this SKB needs to be completed at this time and removed from the NAPI queue. Several operations are greatly simplified by this transformation, especially timing out the oldest SKB in the list when gro_count exceeds MAX_GRO_SKBS, and napi_gro_flush() which walks the queue in reverse order. Signed-off-by: David S. Miller <davem@davemloft.net>
* net: Extra '_get' in declaration of arch_get_platform_mac_addressMathieu Malaterre2018-02-081-1/+1
| | | | | | | | | | | | | | | | | | | | In commit c7f5d105495a ("net: Add eth_platform_get_mac_address() helper."), two declarations were added: int eth_platform_get_mac_address(struct device *dev, u8 *mac_addr); unsigned char *arch_get_platform_get_mac_address(void); An extra '_get' was introduced in arch_get_platform_get_mac_address, remove it. Fix compile warning using W=1: CC net/ethernet/eth.o net/ethernet/eth.c:523:24: warning: no previous prototype for ‘arch_get_platform_mac_address’ [-Wmissing-prototypes] unsigned char * __weak arch_get_platform_mac_address(void) ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~ AR net/ethernet/built-in.o Signed-off-by: Mathieu Malaterre <malat@debian.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: Define eth_stp_addr in linux/etherdevice.hEgil Hjelmeland2017-11-031-0/+1
| | | | | | | | | | | | | | | | | | | The lan9303 driver defines eth_stp_addr as a synonym to eth_reserved_addr_base to get the STP ethernet address 01:80:c2:00:00:00. eth_reserved_addr_base is also used to define the start of Bridge Reserved ethernet address range, which happen to be the STP address. br_dev_setup refer to eth_reserved_addr_base as a definition of STP address. Clean up by: - Move the eth_stp_addr definition to linux/etherdevice.h - Use eth_stp_addr instead of eth_reserved_addr_base in br_dev_setup. Signed-off-by: Egil Hjelmeland <privat@egil-hjelmeland.no> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
* etherdevice: remove unused eth_addr_greaterVivien Didelot2017-03-121-15/+0
| | | | | | | | | eth_addr_greater() was introduced for the mv88e6xxx driver, but is not used anymore. There is no other user, thus remove this function. Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: add devm version of alloc_etherdev_mqs functionRafał Miłecki2017-01-291-0/+5
| | | | | | | | | | | | This patch adds devm_alloc_etherdev_mqs function and devm_alloc_etherdev macro. These can be used for simpler netdev allocation without having to care about calling free_netdev. Thanks to this change drivers, their error paths and removal paths may get simpler by a bit. Signed-off-by: Rafał Miłecki <rafal@milecki.pl> Signed-off-by: David S. Miller <davem@davemloft.net>
* dsa: mv88e6xxx: Optimise atu_getAndrew Lunn2017-01-041-0/+60
| | | | | | | | | | | | | | | | | | | | | Lookup in the ATU can be performed starting from a given MAC address. This is faster than starting with the first possible MAC address and iterating all entries. Entries are returned in numeric order. So if the MAC address returned is bigger than what we are searching for, we know it is not in the ATU. Using the benchmark provided by Volodymyr Bendiuga <volodymyr.bendiuga@gmail.com>, https://www.spinics.net/lists/netdev/msg411550.html on an Marvell Armada 370 RD, the test to add a number of static fdb entries went from 1.616531 seconds to 0.312052 seconds. Signed-off-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
* etherdevice.h & bridge: netfilter: Add and use ether_addr_equal_maskedJoe Perches2016-07-011-0/+23
| | | | | | | | | | | | | There are code duplications of a masked ethernet address comparison here so make it a separate function instead. Miscellanea: o Neaten alignment of FWINV macro uses to make it clearer for the reader Signed-off-by: Joe Perches <joe@perches.com> Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* net: Add eth_platform_get_mac_address() helper.David S. Miller2016-01-061-0/+3
| | | | | | | | | | | | | | | A repeating pattern in drivers has become to use OF node information and, if not found, platform specific host information to extract the ethernet address for a given device. Currently this is done with a call to of_get_mac_address() and then some ifdef'd stuff for SPARC. Consolidate this into a portable routine, and provide the arch_get_platform_mac_address() weak function hook for all architectures to implement if they want. Signed-off-by: David S. Miller <davem@davemloft.net>
* net: fix endian check warning in etherdevice.hJesse Brandeburg2015-08-171-1/+1
| | | | | | | | | | | | | | | Sparse builds have been warning for a really long time now that etherdevice.h has a conversion that is unsafe. include/linux/etherdevice.h:79:32: warning: restricted __be16 degrades to integer This code change fixes the issue and generates the exact same assembly before/after (checked on x86_64) Fixes: 2c722fe1c821 (etherdevice: Optimize a few is_<foo>_ether_addr functions) Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> CC: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* etherdev: Fix sparse error, make test usable by other functionsAlexander Duyck2015-05-051-0/+18
| | | | | | | | | | | | | | | | | | | This change does two things. First it fixes a sparse error for the fact that the __be16 degrades to an integer. Since that is actually what I am kind of doing I am simply working around that by forcing both sides of the comparison to u16. Also I realized on some compilers I was generating another instruction for big endian systems such as PowerPC since it was masking the value before doing the comparison. So to resolve that I have simply pulled the mask out and wrapped it in an #ifndef __BIG_ENDIAN. Lastly I pulled this all out into its own function. I notices there are similar checks in a number of other places so this function can be reused there to help reduce overhead in these paths as well. Signed-off-by: Alexander Duyck <alexander.h.duyck@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* etherdev: Process is_multicast_ether_addr at same size as other operationsAlexander Duyck2015-05-031-1/+23
| | | | | | | | | | | | This change makes it so that we process the address in is_multicast_ether_addr at the same size as the other calls. This allows us to avoid duplicate reads when used with other calls such as is_zero_ether_addr or eth_addr_copy. In addition I have added a 64 bit version of the function so in eth_type_trans we can process the destination address as a 64 bit value throughout. Signed-off-by: Alexander Duyck <alexander.h.duyck@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: Kill dev_rebuild_headerEric W. Biederman2015-03-021-1/+0
| | | | | | | | | | Now that there are no more users kill dev_rebuild_header and all of it's implementations. This is long overdue. Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: Add Transparent Ethernet Bridging GRO support.Jesse Gross2015-01-021-0/+4
| | | | | | | | | Currently the only tunnel protocol that supports GRO with encapsulated Ethernet is VXLAN. This pulls out the Ethernet code into a proper layer so that it can be used by other tunnel protocols such as GRE and Geneve. Signed-off-by: Jesse Gross <jesse@nicira.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: Add functions for handling padding frame and adding to lengthAlexander Duyck2014-12-081-0/+12
| | | | | | | | | | | | | | | | | | | | | | This patch adds two new helper functions skb_put_padto and eth_skb_pad. These functions deviate from the standard skb_pad or skb_padto in that they will also update the length and tail pointers so that they reflect the padding added to the frame. The eth_skb_pad helper is meant to be used with Ethernet devices to update either Rx or Tx frames so that they report the correct size. The skb_put_padto helper is meant to be used primarily in the transmit path for network devices that need frames to be padded up to some minimum size and don't wish to simply update the length somewhere external to the frame. The motivation behind this is that there are a number of implementations throughout the network device drivers that are all doing the same thing, but each a little bit differently and as a result several implementations contain bugs such as updating the length without updating the tail offset and other similar issues. Signed-off-by: Alexander Duyck <alexander.h.duyck@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: Add function for parsing the header length out of linear ethernet framesAlexander Duyck2014-09-051-0/+1
| | | | | | | | | | | | | | | | | This patch updates some of the flow_dissector api so that it can be used to parse the length of ethernet buffers stored in fragments. Most of the changes needed were to __skb_get_poff as it needed to be updated to support sending a linear buffer instead of a skb. I have split __skb_get_poff into two functions, the first is skb_get_poff and it retains the functionality of the original __skb_get_poff. The other function is __skb_get_poff which now works much like __skb_flow_dissect in relation to skb_flow_dissect in that it provides the same functionality but works with just a data buffer and hlen instead of needing an skb. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Acked-by: Alexei Starovoitov <ast@plumgrid.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* etherdevice: Use ether_addr_copy to copy an Ethernet addressJoe Perches2014-01-151-1/+23
| | | | | | | | | | Some systems can use the normally known u16 alignment of Ethernet addresses to save some code/text bytes and cycles. This does not change currently emitted code on x86 by gcc 4.8. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* etherdevice: Optimize a few is_<foo>_ether_addr functionsJoe Perches2013-12-091-2/+23
| | | | | | | | | | | | | | | If CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS is set, several is_<foo>_ether_addr functions can be slightly improved by using u32 dereferences. I believe all current uses of is_zero_ether_addr and is_broadcast_ether_addr are u16 aligned, so always use u16 references to improve those functions performance. Document the u16 alignment requirements. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* etherdevice: Add ether_addr_equal_unalignedJoe Perches2013-12-091-0/+18
| | | | | | | | | | | | Add a generic routine to test if possibly unaligned to u16 Ethernet addresses are equal. If CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS is set, this uses the slightly faster generic routine ether_addr_equal, otherwise this uses memcmp. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* ether_addr_equal: Optimize implementation, remove unused compare_ether_addrJoe Perches2013-12-061-33/+18
| | | | | | | | | | | | | | | | | | | Add a new check for CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS to reduce the number of or's used in the ether_addr_equal comparison to very slightly improve function performance. Simplify the ether_addr_equal_64bits implementation. Integrate and remove the zap_last_2bytes helper as it's now used only once. Remove the now unused compare_ether_addr function. Update the unaligned-memory-access documentation to remove the compare_ether_addr description and show how unaligned accesses could occur with ether_addr_equal. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [networking]device.h: Remove extern from function prototypesJoe Perches2013-09-261-19/+16
| | | | | | | | | | | | There are a mix of function prototypes with and without extern in the kernel sources. Standardize on not using extern for function prototypes. Function prototypes don't need to be written with extern. extern is assumed by the compiler. Its use is as unnecessary as using auto to declare automatic/local variables in a block. Signed-off-by: Joe Perches <joe@perches.com>
* net: etherdevice: add address inherit helperBjørn Mork2013-09-031-0/+15
| | | | | | | | | | Some etherdevices inherit their address from a parent or master device. The addr_assign_type should be updated along with the address in these cases. Adding a helper function to simplify this. Signed-off-by: Bjørn Mork <bjorn@mork.no> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: split eth_mac_addr for better error handlingStefan Hajnoczi2013-01-211-0/+2
| | | | | | | | | | | | | | When we set mac address, software mac address in system and hardware mac address all need to be updated. Current eth_mac_addr() doesn't allow callers to implement error handling nicely. This patch split eth_mac_addr() to prepare part and real commit part, then we can prepare first, and try to change hardware address, then do the real commit if hardware address is set successfully. Signed-off-by: Stefan Hajnoczi <stefanha@gmail.com> Signed-off-by: Amos Kong <akong@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: set dev->addr_assign_type correctlyJiri Pirko2013-01-031-1/+1
| | | | | | | Not a bitfield, but a plain value. Signed-off-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: David S. Miller <davem@davemloft.net>
* eth: Rename and properly align br_reserved_address arrayBen Hutchings2012-11-021-2/+3
| | | | | | | | | | | | | Since this array is no longer part of the bridge driver, it should have an 'eth' prefix not 'br'. We also assume that either it's 16-bit-aligned or the architecture has efficient unaligned access. Ensure the first of these is true by explicitly aligning it. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Acked-by: John Fastabend <john.r.fastabend@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* eth: Make is_link_local() consistent with other address testsBen Hutchings2012-11-021-3/+3
| | | | | | | | | | Function name should include '_ether_addr'. Return type should be bool. Parameter name should be 'addr' not 'dest' (also matching kernel-doc). Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Acked-by: John Fastabend <john.r.fastabend@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net, ixgbe: handle link local multicast addresses in SR-IOV modeJohn Fastabend2012-10-291-0/+19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In SR-IOV mode the PF driver acts as the uplink port and is used to send control packets e.g. lldpad, stp, etc. eth0.1 eth0.2 eth0 VF VF PF | | | <-- stand-in for uplink | | | -------------------------- | Embedded Switch | -------------------------- | MAC <-- uplink But the embedded switch is setup to forward multicast addresses to all interfaces both VFs and PF and onto the physical link. This results in reserved MAC addresses used by control protocols to be forwarded over the switch onto the VF. In the LLDP case the PF sends an LLDPDU and it is currently being forwarded to all the VFs who then see the PF as a peer. This is incorrect. This patch adds the multicast addresses to the RAR table in the hardware to prevent this behavior. Signed-off-by: John Fastabend <john.r.fastabend@intel.com> Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com> Tested-by: Sibai Li <sibai.li@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
* etherdevice: introduce help function eth_zero_addr()Duan Jiong2012-09-101-0/+11
| | | | | | | | | | | a lot of code has either the memset or an inefficient copy from a static array that contains the all-zeros Ethernet address. Introduce help function eth_zero_addr() to fill an address with all zeros, making the code clearer and allowing us to get rid of some constant arrays. Signed-off-by: Duan Jiong <djduanjiong@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* etherdevice: Rename random_ether_addr to eth_random_addrJoe Perches2012-07-161-6/+8
| | | | | | | | Add some API symmetry to eth_broadcast_addr and add a #define to the old name for backward compatibility. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* etherdevice: introduce eth_broadcast_addrJohannes Berg2012-07-101-0/+11
| | | | | | | | | | | A lot of code has either the memset or an inefficient copy from a static array that contains the all-ones broadcast address. Introduce eth_broadcast_addr() to fill an address with all ones, making the code clearer and allowing us to get rid of some constant arrays. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* etherdevice: fix commentsstephen hemminger2012-05-171-8/+6
| | | | | | | | | | | | Fix some minor problems in comments of etherdevice.h * Warning is out dated, file hasn't moved or disappeared in many years and is unlikely to do so soon. * Capitalize Ethernet consistently since it is a proper name * Fix descriptive comment of padding * Spelling and grammar fix for alignment comment Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* etherdevice: Remove now unused compare_ether_addr_64bitsJoe Perches2012-05-121-33/+13
| | | | | | | | | | Move and invert the logic from the otherwise unused compare_ether_addr_64bits to ether_addr_equal_64bits. Neaten the logic in is_etherdev_addr. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* etherdevice.h: Add ether_addr_equal_64bitsJoe Perches2012-05-101-0/+20
| | | | | | | | | | | | Add an optimized boolean function to check if 2 ethernet addresses are the same. This is to avoid any confusion about compare_ether_addr_64bits returning an unsigned, and not being able to use the compare_ether_addr_64bits function for sorting ala memcmp. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* etherdevice.h: Add ether_addr_equalJoe Perches2012-05-091-0/+12
| | | | | | | | | | | | Add a boolean function to check if 2 ethernet addresses are the same. This is to avoid any confusion about compare_ether_addr returning an unsigned, and not being able to use the compare_ether_addr function for sorting ala memcmp. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* etherdev.h: Convert int is_<foo>_ether_addr to boolJoe Perches2012-05-081-6/+6
| | | | | | | Make the return value explicitly true or false. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: compare_ether_addr[_64bits]() has no orderingJohannes Berg2012-05-071-5/+6
| | | | | | | | | | | | | | Neither compare_ether_addr() nor compare_ether_addr_64bits() (as it can fall back to the former) have comparison semantics like memcmp() where the sign of the return value indicates sort order. We had a bug in the wireless code due to a blind memcmp replacement because of this. A cursory look suggests that the wireless bug was the only one due to this semantic difference. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* rename dev_hw_addr_random and remove redundant secondDanny Kukawka2012-02-131-6/+7
| | | | | | | | | | | | | | | | | Renamed dev_hw_addr_random to eth_hw_addr_random() to reflect that this function only assign a random ethernet address (MAC). Removed the second parameter (u8 *hwaddr), it's redundant since the also given net_device already contains net_device->dev_addr. Set it directly. Adapt igbvf and ixgbevf to the changed function. Small fix for ixgbevf_probe(): if ixgbevf_sw_init() fails (which means the device got no dev_addr) handle the error and jump to err_sw_init as already done by igbvf in similar case. Signed-off-by: Danny Kukawka <danny.kukawka@bisect.de> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: Push protocol type directly down to header_ops->cache()David S. Miller2011-07-131-1/+1
| | | | Signed-off-by: David S. Miller <davem@davemloft.net>
* etherdevice.h: Add is_unicast_ether_addr functionTobias Klauser2011-01-131-0/+11
| | | | | | | | | | From a check for !is_multicast_ether_addr it is not always obvious that we're checking for a unicast address. So add this helper function to make those code paths easier to read. Signed-off-by: Tobias Klauser <tklauser@distanz.ch> Acked-by: Chris Metcalf <cmetcalf@tilera.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: Add alloc_netdev_mqs functionTom Herbert2011-01-101-1/+3
| | | | | | | | | | Added alloc_netdev_mqs function which allows the number of transmit and receive queues to be specified independenty. alloc_netdev_mq was changed to a macro to call the new function. Also added alloc_etherdev_mqs with same purpose. Signed-off-by: Tom Herbert <therbert@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: return operator cleanupEric Dumazet2010-09-231-2/+2
| | | | | | | | | 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>
* gro: __napi_gro_receive() optimizationsEric Dumazet2010-08-261-1/+17
| | | | | | | | | | | | | | | | | compare_ether_header() can have a special implementation on 64 bit arches if CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS is defined. __napi_gro_receive() and vlan_gro_common() can avoid a conditional branch to perform device match. On x86_64, __napi_gro_receive() has now 38 instructions instead of 53 As gcc-4.4.3 still choose to not inline it, add inline keyword to this performance critical function. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> CC: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
* etherdevice.h: fix kernel-doc typoRandy Dunlap2010-08-101-1/+1
| | | | | | | | | | Fix etherdevice.h parameter name typo in kernel-doc: Warning(include/linux/etherdevice.h:138): No description found for parameter 'hwaddr' Warning(include/linux/etherdevice.h:138): Excess function parameter 'addr' description in 'dev_hw_addr_random' Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* sysfs: add attribute to indicate hw address assignment typeStefan Assmann2010-07-241-0/+14
| | | | | | | | | | | | | | | | | | | | | Add addr_assign_type to struct net_device and expose it via sysfs. This new attribute has the purpose of giving user-space the ability to distinguish between different assignment types of MAC addresses. For example user-space can treat NICs with randomly generated MAC addresses differently than NICs that have permanent (locally assigned) MAC addresses. For the former udev could write a persistent net rule by matching the device path instead of the MAC address. There's also the case of devices that 'steal' MAC addresses from slave devices. In which it is also be beneficial for user-space to be aware of the fact. This patch also introduces a helper function to assist adoption of drivers that generate MAC addresses randomly. Signed-off-by: Stefan Assmann <sassmann@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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