- 28 Jan, 2013 13 commits
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Eric Dumazet authored
Pravin Shelar mentioned that GSO could potentially generate wrong TX checksum if skb has fragments that are overwritten by the user between the checksum computation and transmit. He suggested to linearize skbs but this extra copy can be avoided for normal tcp skbs cooked by tcp_sendmsg(). This patch introduces a new SKB_GSO_SHARED_FRAG flag, set in skb_shinfo(skb)->gso_type if at least one frag can be modified by the user. Typical sources of such possible overwrites are {vm}splice(), sendfile(), and macvtap/tun/virtio_net drivers. Tested: $ netperf -H 7.7.8.84 MIGRATED TCP STREAM TEST from 0.0.0.0 (0.0.0.0) port 0 AF_INET to 7.7.8.84 () port 0 AF_INET Recv Send Send Socket Socket Message Elapsed Size Size Size Time Throughput bytes bytes bytes secs. 10^6bits/sec 87380 16384 16384 10.00 3959.52 $ netperf -H 7.7.8.84 -t TCP_SENDFILE TCP SENDFILE TEST from 0.0.0.0 (0.0.0.0) port 0 AF_INET to 7.7.8.84 () port 0 AF_INET Recv Send Send Socket Socket Message Elapsed Size Size Size Time Throughput bytes bytes bytes secs. 10^6bits/sec 87380 16384 16384 10.00 3216.80 Performance of the SENDFILE is impacted by the extra allocation and copy, and because we use order-0 pages, while the TCP_STREAM uses bigger pages. Reported-by: Pravin Shelar <pshelar@nicira.com> Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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git://gitorious.org/linux-can/linux-can-nextDavid S. Miller authored
Marc Kleine-Budde says: ==================== this is a pull-request for net-next/master. There is are 9 patches by Fabio Baltieri and Kurt Van Dijck which add LED infrastructure and support for CAN devices. Bernd Krumboeck adds a driver for the USB CAN adapter from 8 devices. Oliver Hartkopp improves the CAN gateway functionality. There are 4 patches by me, which clean up the CAN's Kconfig. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
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Cong Wang authored
sock->sk_dst_cache is protected by RCU. Reported-by: Fengguang Wu <fengguang.wu@intel.com> Cc: Eric Dumazet <eric.dumazet@gmail.com> Cc: David S. Miller <davem@davemloft.net> Signed-off-by: Cong Wang <amwang@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Cong Wang authored
sock->sk_dst_cache is protected by RCU, therefore we should use __sk_dst_get() to deref it once we lock the sock. This fixes several sparse warnings. Cc: linux-decnet-user@lists.sourceforge.net Cc: Eric Dumazet <eric.dumazet@gmail.com> Cc: David S. Miller <davem@davemloft.net> Signed-off-by: Cong Wang <amwang@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Amir Vadai authored
filters_lock might have been used while it was re-initialized. Moved filters_lock and filters_list initialization to init_netdev instead of alloc_resources which is called every time the device is configured. Signed-off-by: Amir Vadai <amirv@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Amir Vadai authored
There is a possible race where the TX completion handler can clean the entire TX queue between the decision that the queue is full and actually closing it. To avoid this situation, check again if the queue is really full, if not, reopen the transmit and continue with sending the packet. CC: Eric Dumazet <edumazet@google.com> Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.com> Signed-off-by: Eugenia Emantayev <eugenia@mellanox.com> Signed-off-by: Amir Vadai <amirv@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Jack Morgenstein authored
Returning 0 (success) when in fact we are aborting the load, leads to kernel panic when unloading the module. Fix that by returning the actual error code. Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il> Signed-off-by: Eugenia Emantayev <eugenia@mellanox.com> Signed-off-by: Amir Vadai <amirv@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Eugenia Emantayev authored
The device multicast list is protected by netif_addr_lock_bh in the networking core, we should use this locking practice in mlx4_en too. Signed-off-by: Eugenia Emantayev <eugenia@mellanox.com> Signed-off-by: Amir Vadai <amirv@mellanox.com> Reviewed-by: Yevgeny Petrilin <yevgenyp@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Aviad Yehezkel authored
When port is stopped and flow steering mode is not device managed: promisc QP rule wasn't removed from MCG table. Added code to remove it in all flow steering modes. In addition, promsic rule removal should be in stop port and not in start port - moved it accordingly. Signed-off-by: Aviad Yehezkel <aviadye@mellanox.com> Signed-off-by: Eugenia Emantayev <eugenia@mellanox.com> Signed-off-by: Hadar Hen Zion <hadarh@mellanox.com> Signed-off-by: Amir Vadai <amirv@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Eugenia Emantayev authored
Performing the DUMP_ETH_STATS firmware command outside the lock leads to kernel panic when data structures such as RX/TX rings are freed in parallel, e.g when one changes the mtu or ring sizes. Signed-off-by: Eugenia Emantayev <eugenia@mellanox.com> Signed-off-by: Amir Vadai <amirv@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Joe Perches authored
First number, then size. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Dan Carpenter authored
The comments here say that the /* Max event is 61 char */ but in 2003 we changed the event format and now the max event size is 75. The longest event is: "Discovered %08x (%s) behind %08x {hints %02X-%02X}\n", 12345678901 23 456789012 34567890 1 2 3 +8 +21 +8 +2 +2 +1 = 75 characters. There was a check to return -EOVERFLOW if the user gave us a "count" value that was less than 64. Raising it to 75 might break backwards compatability. Instead I removed the check and now it returns a truncated string if "count" is too low. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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David S. Miller authored
Jeff Kirsher says: ==================== This series contains updates to e1000e only. All the updates come from Bruce Allan and most of the patch fix or enable features on i217/i218. Most notably is patch 03 "e1000e: add support for IEEE-1588 PTP", which is v2 of the patch based on feedback from Stephen Hemminger. Also patch 04 "e1000e: enable ECC on I217/I218 to catch packet buffer memory errors" should be queued up for stable (as well as net) trees, but the patch does not apply cleanly to either of those trees currently. So I will work with Bruce to provide a version of the patch which will apply cleanly to net (and stable) and we can queue it up at that point for stable 3.5 tree. The remaining patches are general cleanups of the code. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
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- 27 Jan, 2013 26 commits
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Bruce Allan authored
Static analysis with cppcheck has shown a few instances of a variable being reassigned a value before the old one has been used. None of these ever require the old value to be used so remove the old values. Signed-off-by: Bruce Allan <bruce.w.allan@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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Bruce Allan authored
Static analysis with cppcheck has shown a few instances of a variable which is assigned a value that is never used. A number of these are the return status of various driver function calls which should be passed back to the caller of the current function. Signed-off-by: Bruce Allan <bruce.w.allan@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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Bruce Allan authored
...and cleanup some whitespace in other prototypes. Signed-off-by: Bruce Allan <bruce.w.allan@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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Bruce Allan authored
Signed-off-by: Bruce Allan <bruce.w.allan@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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Bruce Allan authored
The e1000e driver has been converted to use extended descriptors instead of the older legacy descriptor type. Signed-off-by: Bruce Allan <bruce.w.allan@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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Bruce Allan authored
Toggling the LANPHYPC Value bit cycles the power on the PHY and sets it back to power-on defaults. This includes setting it's MAC-PHY messaging mode to use the PCIe-like interconnect, so the MAC must also be set back from SMBus mode to PCIe mode otherwise the PHY can be inaccessible. Signed-off-by: Bruce Allan <bruce.w.allan@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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Bruce Allan authored
The largest jumbo frame supported by the i217 and i218 hardware is 9018. Signed-off-by: Bruce Allan <bruce.w.allan@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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Bruce Allan authored
Signed-off-by: Bruce Allan <bruce.w.allan@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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Bruce Allan authored
Signed-off-by: Bruce Allan <bruce.w.allan@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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Bruce Allan authored
As done with the previous generation managed 82579, prevent the PHY from being put into an unknown state by blocking the hardware from automatically configuring the PHY as done with the previous generation managed 82579. Instead, the driver should configure the PHY with contents of the EEPROM image. Signed-off-by: Bruce Allan <bruce.w.allan@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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Bruce Allan authored
In rare instances, memory errors have been detected in the internal packet buffer memory on I217/I218 when stressed under certain environmental conditions. Enable Error Correcting Code (ECC) in hardware to catch both correctable and uncorrectable errors. Correctable errors will be handled by the hardware. Uncorrectable errors in the packet buffer will cause the packet to be received with an error indication in the buffer descriptor causing the packet to be discarded. If the uncorrectable error is in the descriptor itself, the hardware will stop and interrupt the driver indicating the error. The driver will then reset the hardware in order to clear the error and restart. Both types of errors will be accounted for in statistics counters. Signed-off-by: Bruce Allan <bruce.w.allan@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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Bruce Allan authored
Add PTP IEEE-1588 support and make accesible via the PHC subsystem. v2: make e1000e_ptp_clock_info a static const struct per Stephen Hemminger Cc: Stephen Hemminger <stephen@networkplumber.org> Cc: Richard Cochran <richardcochran@gmail.com> Signed-off-by: Bruce Allan <bruce.w.allan@intel.com> Reviewed-by: Jacob Keller <Jacob.e.keller@intel.com> Acked-by: Richard Cochran <richardcochran@gmail.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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Bruce Allan authored
The previous static flow-control thresholds were causing unnecessary pause packets to be transmitted when jumbo frames are configured reducing the throughput. Signed-off-by: Bruce Allan <bruce.w.allan@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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Bruce Allan authored
The SHRAH[9] register on I217 has a different R/W bit-mask than RAR and SHRAL/H registers. Set R/W bit-mask appropriately for SHRAH[9] when testing the R/W ability of the register. Also, fix the error message log format so that it does not provide misleading information (i.e. the logged register address could be incorrect). Signed-off-by: Bruce Allan <bruce.w.allan@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/net-nextDavid S. Miller authored
Signed-off-by: David S. Miller <davem@davemloft.net>
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Tom Herbert authored
Fix a reported compilation error where ia variable of type kuid_t was being set to zero. Eliminate two instances of setting tb->fastuid to zero. tb->fastuid is only used if tb->fastreuseport is set, so there should be no problem if tb->fastuid is not initialized (when tb->fastreuesport is zero). Signed-off-by: Tom Herbert <therbert@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Thomas Graf authored
Commit 055dc21a (soreuseport: infrastructure) removed the #if 0 around SO_REUSEPORT without removing the corresponding #endif thus causing the header guard to close early. Cc: Tom Herbert <therbert@google.com> Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
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Jitendra Kalsaria authored
Signed-off-by: Jitendra Kalsaria <jitendra.kalsaria@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Jitendra Kalsaria authored
Providing communication channel between KVM and e-Switch so that it can be informed when hypervisor configures a MAC address and VLAN. qlcnic_mac_learn module param usage will be changed to: 0 = MAC learning is disable 1 = Driver learning is enable 2 = FDB learning is enable Signed-off-by: Jitendra Kalsaria <jitendra.kalsaria@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Jitendra Kalsaria authored
device eth0 entered promiscuous mode BUG: sleeping function called from invalid context at mm/slub.c:930 in_atomic(): 1, irqs_disabled(): 0, pid: 5911, name: brctl INFO: lockdep is turned off. Pid: 5911, comm: brctl Tainted: GF W O 3.6.0-0.rc7.git1.4.fc18.x86_64 #1 Call Trace: [<ffffffff810a29ca>] __might_sleep+0x18a/0x240 [<ffffffff811b5d77>] __kmalloc+0x67/0x2d0 [<ffffffffa00a61a9>] ? qlcnic_alloc_lb_filters_mem+0x59/0xa0 [qlcnic] [<ffffffffa00a61a9>] qlcnic_alloc_lb_filters_mem+0x59/0xa0 [qlcnic] [<ffffffffa009e1c1>] qlcnic_set_multi+0x81/0x100 [qlcnic] [<ffffffff8159cccf>] __dev_set_rx_mode+0x5f/0xb0 [<ffffffff8159cd4f>] dev_set_rx_mode+0x2f/0x50 [<ffffffff8159d00c>] dev_set_promiscuity+0x3c/0x50 [<ffffffffa05ed728>] br_add_if+0x1e8/0x400 [bridge] [<ffffffffa05ee2df>] add_del_if+0x5f/0x90 [bridge] [<ffffffffa05eee0b>] br_dev_ioctl+0x4b/0x90 [bridge] [<ffffffff8159d613>] dev_ifsioc+0x373/0x3b0 [<ffffffff8159d78f>] dev_ioctl+0x13f/0x860 [<ffffffff812dd6e1>] ? avc_has_perm_flags+0x31/0x2c0 [<ffffffff8157c18d>] sock_do_ioctl+0x5d/0x70 [<ffffffff8157c21d>] sock_ioctl+0x7d/0x2c0 [<ffffffff812df922>] ? inode_has_perm.isra.48.constprop.61+0x62/0xa0 [<ffffffff811e4979>] do_vfs_ioctl+0x99/0x5a0 [<ffffffff812df9f7>] ? file_has_perm+0x97/0xb0 [<ffffffff810d716d>] ? trace_hardirqs_on+0xd/0x10 [<ffffffff811e4f19>] sys_ioctl+0x99/0xa0 [<ffffffff816e7369>] system_call_fastpath+0x16/0x1b br0: port 1(eth0) entered forwarding state br0: port 1(eth0) entered forwarding state Signed-off-by: Jitendra Kalsaria <jitendra.kalsaria@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Himanshu Madhani authored
Provide port number in command payload for LED/Beaconing tests. Signed-off-by: Himanshu Madhani <himanshu.madhani@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Manish chopra authored
o Some adapter types do not support co-existence of Legacy Interrupt with MSI-x or MSI among multiple functions. For those adapters, prevent attaching to a function during normal load, if MSI-x or MSI vectors are not available. o Using module parameters use_msi=0 and use_msi_x=0, driver can be loaded in legacy mode for all functions in the adapter. Signed-off-by: Manish Chopra <manish.chopra@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Shahed Shaikh authored
o This patch enables RSS for TYPE-C packets to enable RSS for TCP over IPv6 Signed-off-by: Shahed Shaikh <shahed.shaikh@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Shahed Shaikh authored
Signed-off-by: Shahed Shaikh <shahed.shaikh@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Sritej Velaga authored
Signed-off-by: Sritej Velaga <sritej.velaga@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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git://1984.lsi.us.es/nf-nextDavid S. Miller authored
Pablo Neira Ayuso says: ==================== This batch contains netfilter updates for you net-next tree, they are: * The new connlabel extension for x_tables, that allows us to attach labels to each conntrack flow. The kernel implementation uses a bitmask and there's a file in user-space that maps the bits with the corresponding string for each existing label. By now, you can attach up to 128 overlapping labels. From Florian Westphal. * A new round of improvements for the netns support for conntrack. Gao feng has moved many of the initialization code of each module of the netns init path. He also made several code refactoring, that code looks cleaner to me now. * Added documentation for all possible tweaks for nf_conntrack via sysctl, from Jiri Pirko. * Cisco 7941/7945 IP phone support for our SIP conntrack helper, from Kevin Cernekee. * Missing header file in the snmp helper, from Stephen Hemminger. * Finally, a couple of fixes to resolve minor issues with these changes, from myself. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
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- 26 Jan, 2013 1 commit
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Oliver Hartkopp authored
Add a statistic counter to detect deleted frames due to misconfiguration with a new read-only CGW_DELETED netlink attribute for the CAN gateway. Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
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