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2011-05-05net: Add sendmmsg socket system callAnton Blanchard16-52/+192
This patch adds a multiple message send syscall and is the send version of the existing recvmmsg syscall. This is heavily based on the patch by Arnaldo that added recvmmsg. I wrote a microbenchmark to test the performance gains of using this new syscall: http://ozlabs.org/~anton/junkcode/sendmmsg_test.c The test was run on a ppc64 box with a 10 Gbit network card. The benchmark can send both UDP and RAW ethernet packets. 64B UDP batch pkts/sec 1 804570 2 872800 (+ 8 %) 4 916556 (+14 %) 8 939712 (+17 %) 16 952688 (+18 %) 32 956448 (+19 %) 64 964800 (+20 %) 64B raw socket batch pkts/sec 1 1201449 2 1350028 (+12 %) 4 1461416 (+22 %) 8 1513080 (+26 %) 16 1541216 (+28 %) 32 1553440 (+29 %) 64 1557888 (+30 %) We see a 20% improvement in throughput on UDP send and 30% on raw socket send. [ Add sparc syscall entries. -DaveM ] Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-05net: call dev_alloc_name from register_netdeviceJiri Pirko20-134/+12
Force dev_alloc_name() to be called from register_netdevice() by dev_get_valid_name(). That allows to remove multiple explicit dev_alloc_name() calls. The possibility to call dev_alloc_name in advance remains. This also fixes veth creation regresion caused by 84c49d8c3e4abefb0a41a77b25aa37ebe8d6b743 Signed-off-by: Jiri Pirko <jpirko@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-05bnx2x: function descriptions format fixedDmitry Kravkov6-266/+194
Signed-off-by: Dmitry Kravkov <dmitry@broadcom.com> Signed-off-by: Eilon Greenstein <eilong@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-05bnx2x: update year to 2011 and version to 1.62.12-0Dmitry Kravkov15-17/+17
Signed-off-by: Dmitry Kravkov <dmitry@broadcom.com> Signed-off-by: Eilon Greenstein <eilong@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-05bnx2x: improve memory handling, low memory recovery flowsDmitry Kravkov5-276/+449
Signed-off-by: Dmitry Kravkov <dmitry@broadcom.com> Signed-off-by: Eilon Greenstein <eilong@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-05bnx2x: Do storage mac address validation for SF mode.Dmitry Kravkov1-16/+16
Signed-off-by: Dmitry Kravkov <dmitry@broadcom.com> Signed-off-by: Eilon Greenstein <eilong@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-05bnx2x: allow WoL on every function in MF modesDmitry Kravkov1-7/+3
Signed-off-by: Dmitry Kravkov <dmitry@broadcom.com> Signed-off-by: Eilon Greenstein <eilong@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-05bnx2x: link report improvementsVladislav Zolotarov4-35/+141
To avoid link notification duplication Signed-off-by: Dmitry Kravkov <dmitry@broadcom.com> Signed-off-by: Vladislav Zolotarov <vladz@broadcom.com> Signed-off-by: Eilon Greenstein <eilong@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-05stmmac: removed not used definitionsGiuseppe CAVALLARO1-3/+0
Reported-by: Karim Hamiti <karim.hamiti@st.com> Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-04can: rename can_try_module_get to can_get_protoKurt Van Dijck1-4/+9
can: rename can_try_module_get to can_get_proto can_try_module_get does return a struct can_proto. The name explains what is done in so much detail that a caller may not notice that a struct can_proto is locked/unlocked. Signed-off-by: Kurt Van Dijck <kurt.van.dijck@eia.be> Acked-by: Oliver Hartkopp <socketcan@hartkopp.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-04can: make struct can_proto constKurt Van Dijck4-10/+10
commit 53914b67993c724cec585863755c9ebc8446e83b had the same message. That commit did put everything in place but did not make can_proto const itself. Signed-off-by: Kurt Van Dijck <kurt.van.dijck@eia.be> Acked-by: Oliver Hartkopp <socketcan@hartkopp.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-04Merge branch 'master' of ↵David S. Miller14-201/+559
master.kernel.org:/pub/scm/linux/kernel/git/jkirsher/net-next-2.6
2011-05-04ipv6: Use flowi4->{daddr,saddr} in ipip6_tunnel_xmit().David S. Miller1-2/+2
Instead of rt->rt_{dst,src} Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-04ipv4: Kill rt->rt_{src, dst} usage in IP GRE tunnels.David S. Miller2-26/+30
First, make callers pass on-stack flowi4 to ip_route_output_gre() so they can get at the fully resolved flow key. Next, use that in ipgre_tunnel_xmit() to avoid the need to use rt->rt_{dst,src}. Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-04ipv4: Pass explicit saddr/daddr args to ipmr_get_route().David S. Miller3-9/+12
This eliminates the need to use rt->rt_{src,dst}. Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-04ixgbe: Cleanup PCIe bus speed infoDon Skidmore1-2/+2
PCIe connections should be expressed as GT/s (GigaTransfers per second) instead of the current Gb/s (Gigabits per second). In addition, it is incorrect because (due to PCIe gen 1 & 2 having a 20% overhead) the actually data rate, when expressed in Gb/s, is only 80% of the rate of GT/s. Signed-off-by: Don Skidmore <donald.c.skidmore@intel.com> Tested-by: Evan Swanson <evan.swanson@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-05-04ixgbe: improve EEPROM read/write operationsEmil Tantilov7-100/+465
Introduce buffered read/writes which greatly improves performance on parts with large EEPROMs. Previously reading/writing a word requires taking/releasing of synchronization semaphores which adds 10ms to each operation. The optimization is to read/write in buffers, but make sure the semaphore is not held for >500ms according to the datasheet. Since we can't read the EEPROM page size ixgbe_detect_eeprom_page_size() is used to discover the EEPROM size when needed and keeps the result in word_page_size for the rest of the run time. Use buffered reads for ethtool -e. Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com> Tested-by: Evan Swanson <evan.swanson@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-05-04ixgbe: fix sparse warningEmil Tantilov1-46/+62
warning: symbol 'before' shadows an earlier one Convert large macros to functions similar to e1000e. Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com> Acked-by: Don Skidmore <donald.c.skidmore@intel.com> Tested-by: Evan Swanson <evan.swanson@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-05-04ixgbe: fix typo error with software defined pins on 82599Don Skidmore1-1/+2
Correcting a simple typo with enabling software defined pins. I don't believe this was causing any issues but this is how it was meant to be implemented. Signed-off-by: Don Skidmore <donald.c.skidmore@intel.com> Tested-by: Evan Swanson <evan.swanson@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-05-04ixgbe: Use function pointer for ixgbe_acquire/release_swfw_sync()Emil Tantilov3-8/+7
Change remaining direct calls to function pointers. Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com> Tested-by: Evan Swanson <evan.swanson@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-05-04igbvf: remove bogus phys_idstephen hemminger1-6/+0
This device lies about supporting phys_id. Remove it and just let the upper layer report not supported. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Tested-by: <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-05-04igb: Add check for invalid size to igb_get_invariants_82575()Carolyn Wyborny1-0/+8
Recent commits have changed how EEPROM size is checked and if the size word is misconfigured, the driver will fail to load. This patch adds a check for invalid size word in the EEPROM and uses default size instead for 82576 parts. Reported-by: Stefan Assmann <sassmann@redhat.com> Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-05-04ixgb: convert to set_phys_idJeff Kirsher2-37/+12
Based on the original patch sent by Stephen Hemminger. This version incorporates the ethtool changes that Bruce Allan submitted. CC: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Tested-by: Evan Swanson <evan.swanson@intel.com>
2011-05-04ipv4: In ip_build_and_send_pkt() use 'saddr' and 'daddr' args passed in.David S. Miller1-2/+2
Instead of rt->rt_{dst,src} The only tricky part is source route option handling. If the source route option is enabled we can't just use plain 'daddr', we have to use opt->opt.faddr. Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-04e100: fix build warningEmil Tantilov1-1/+1
In function 'e100_hw_init': warning: 'err' may be used uninitialized in this function Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-05-04ipv4: Use flowi4->{daddr,saddr} in ipip_tunnel_xmit().David S. Miller1-2/+2
Instead of rt->rt_{dst,src} Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-04x86/net: only select BPF_JIT when NET is enabledRandy Dunlap1-1/+1
Fix kconfig unmet dependency warning: HAVE_BPF_JIT depends on NET, so make the "select" of it depend on NET also. warning: (X86) selects HAVE_BPF_JIT which has unmet direct dependencies (NET) Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-03sctp: Use flowi4's {saddr,daddr} in sctp_v4_dst_saddr() and sctp_v4_get_dst()David S. Miller1-5/+4
Instead of rt->rt_{src,dst} Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-03ipv4: Use flowi4's {saddr,daddr} in igmpv3_newpack() and igmp_send_report()David S. Miller1-3/+3
Instead of rt->rt_{src,dst} Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-03libcxgbi: Use flowi4's saddr in cxgbi_check_route().David S. Miller1-5/+6
Instead of rt->rt_src Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-03pptp: Use flowi4's daddr/saddr in pptp_xmit().David S. Miller1-2/+2
Instead of rt->rt_{src,dst} Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-03ipv4: Make caller provide on-stack flow key to ip_route_output_ports().David S. Miller14-31/+48
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-03dccp: Use flowi4->saddr in dccp_v4_connect()David S. Miller1-1/+1
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-03ipv4: Renamt struct rtable's rt_tos to rt_key_tos.David S. Miller3-14/+14
To more accurately reflect that it is purely a routing cache lookup key and is used in no other context. Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-03ipv4: Rework ipmr_rt_fib_lookup() flow key initialization.David S. Miller1-7/+9
Use information from the skb as much as possible, currently this means daddr, saddr, and TOS. Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-03net/stmmac: Move "#include <linux/platform_device.h>" to linux/stmmac.hViresh KUMAR2-1/+2
stmmac.h uses struct platform_device and doesn't include <linux/platform_device.h>. Whereas drivers/net/stmmac/stmmac.h includes it, but doesn't directly use it. And so we get following compilation warning while using this file: warning: ‘struct platform_device’ declared inside parameter list This patch includes <linux/platform_device.h> in linux/stmmac.h and removes it from drivers/net/stmmac/stmmac.h Signed-off-by: Viresh Kumar <viresh.kumar@st.com> Acked-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-02net: dont hold rtnl mutex during netlink dump callbacksEric Dumazet8-23/+25
Four years ago, Patrick made a change to hold rtnl mutex during netlink dump callbacks. I believe it was a wrong move. This slows down concurrent dumps, making good old /proc/net/ files faster than rtnetlink in some situations. This occurred to me because one "ip link show dev ..." was _very_ slow on a workload adding/removing network devices in background. All dump callbacks are able to use RCU locking now, so this patch does roughly a revert of commits : 1c2d670f366 : [RTNETLINK]: Hold rtnl_mutex during netlink dump callbacks 6313c1e0992 : [RTNETLINK]: Remove unnecessary locking in dump callbacks This let writers fight for rtnl mutex and readers going full speed. It also takes care of phonet : phonet_route_get() is now called from rcu read section. I renamed it to phonet_route_get_rcu() Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Cc: Patrick McHardy <kaber@trash.net> Cc: Remi Denis-Courmont <remi.denis-courmont@nokia.com> Acked-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-02Merge branch 'batman-adv/next' of git://git.open-mesh.org/ecsv/linux-mergeDavid S. Miller14-138/+292
2011-05-02ipv4: Make sure flowi4->{saddr,daddr} are always set.David S. Miller1-6/+5
Slow path output route resolution always makes sure that ->{saddr,daddr} are set, and also if we trigger into IPSEC resolution we initialize them as well, because xfrm_lookup() expects them to be fully resolved. But if we hit the fast path and flowi4->flowi4_proto is zero, we won't do this initialization. Therefore, move the IPSEC path initialization to the route cache lookup fast path to make sure these are always set. Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-01batman-adv: Make bat_priv->primary_if an rcu protected pointerMarek Lindner12-118/+280
The rcu protected macros rcu_dereference() and rcu_assign_pointer() for the bat_priv->primary_if need to be used, as well as spin/rcu locking. Otherwise we might end up using a primary_if pointer pointing to already freed memory. Signed-off-by: Marek Lindner <lindner_marek@yahoo.de> Signed-off-by: Sven Eckelmann <sven@narfation.org>
2011-05-01batman-adv: fix gw_node_update() and gw_election()Antonio Quartulli1-4/+8
This is a regression from c4aac1ab9b973798163b34939b522f01e4d28ac9 - gw_node_update() doesn't add a new gw_node in case of empty curr_gw. This means that at the beginning no gw_node is added, leading to an empty gateway list. - gw_election() is terminating in case of curr_gw == NULL. It has to terminate in case of curr_gw != NULL Signed-off-by: Antonio Quartulli <ordex@autistici.org> Signed-off-by: Sven Eckelmann <sven@narfation.org>
2011-05-01batman-adv: Move definition of atomic_dec_not_zero() into main.hAntonio Quartulli3-2/+2
atomic_dec_not_zero() is very useful and it is currently defined multiple times. So it is possible to move it in main.h Signed-off-by: Antonio Quartulli <ordex@autistici.org> Signed-off-by: Sven Eckelmann <sven@narfation.org>
2011-05-01batman-adv: orig_hash_find() manages rcu_lock/unlock internallyAntonio Quartulli1-14/+2
orig_hash_find() manages rcu_lock/unlock internally and doesn't need to be surrounded by rcu_read_lock() / rcu_read_unlock() anymore Signed-off-by: Antonio Quartulli <ordex@autistici.org> Acked-by: Marek Lindner <lindner_marek@yahoo.de> Signed-off-by: Sven Eckelmann <sven@narfation.org>
2011-04-29net/igb/e1000/e1000e: more robust ethtool duplex/speed configurationDavid Decotigny7-38/+59
This makes sure that one cannot request a 99Mbps full-duplex and get a 100Mbps half-duplex configuration in return due to the way the speed/duplex parameters are handled internally. Tested: e1000 works Signed-off-by: David Decotigny <decot@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-29tulip/de2104x: don't report different speeds depending on port typeDavid Decotigny1-7/+3
Initial driver reported different speeds depending on the port being used. This advertises the speed to be 10Mbps in any case, which is what it actually is on the wire. Signed-off-by: David Decotigny <decot@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-29acenic: Fix using the specified speed when configuring NICDavid Decotigny1-1/+1
This tells the NIC to take the speed specified by ethtool into account when configuring the NIC, instead of keeping the previous speed. Signed-off-by: David Decotigny <decot@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-29ethtool: cosmetic: Use ethtool ethtool_cmd_speed APIDavid Decotigny76-197/+232
This updates the network drivers so that they don't access the ethtool_cmd::speed field directly, but use ethtool_cmd_speed() instead. For most of the drivers, these changes are purely cosmetic and don't fix any problem, such as for those 1GbE/10GbE drivers that indirectly call their own ethtool get_settings()/mii_ethtool_gset(). The changes are meant to enforce code consistency and provide robustness with future larger throughputs, at the expense of a few CPU cycles for each ethtool operation. All drivers compiled with make allyesconfig ion x86_64 have been updated. Tested: make allyesconfig on x86_64 + e1000e/bnx2x work Signed-off-by: David Decotigny <decot@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-29ethtool: Use full 32 bit speed range in ethtool's set_settingsDavid Decotigny44-131/+163
This makes sure the ethtool's set_settings() callback of network drivers don't ignore the 16 most significant bits when ethtool calls their set_settings(). All drivers compiled with make allyesconfig on x86_64 have been updated. Signed-off-by: David Decotigny <decot@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-29ethtool: Call ethtool's get/set_settings callbacks with cleaned dataDavid Decotigny20-89/+117
This makes sure that when a driver calls the ethtool's get/set_settings() callback of another driver, the data passed to it is clean. This guarantees that speed_hi will be zeroed correctly if the called callback doesn't explicitely set it: we are sure we don't get a corrupted speed from the underlying driver. We also take care of setting the cmd field appropriately (ETHTOOL_GSET/SSET). This applies to dev_ethtool_get_settings(), which now makes sure it sets up that ethtool command parameter correctly before passing it to drivers. This also means that whoever calls dev_ethtool_get_settings() does not have to clean the ethtool command parameter. This function also becomes an exported symbol instead of an inline. All drivers visible to make allyesconfig under x86_64 have been updated. Signed-off-by: David Decotigny <decot@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-29ethtool: cosmetics: enforce const-ness in ethtool_cmd_speedDavid Decotigny1-4/+10
The 'ep' argument of ethtool_cmd_speed is not altered: advertise it in protoype. +Indentation fix. Also add comments to advise using the ethtool_cmd_speed API to get/set the link speed. Signed-off-by: David Decotigny <decot@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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