- 29 Mar, 2014 22 commits
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git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller authored
Conflicts: drivers/net/ethernet/marvell/mvneta.c The mvneta.c conflict is a case of overlapping changes, a conversion to devm_ioremap_resource() vs. a conversion to netdev_alloc_pcpu_stats. Signed-off-by: David S. Miller <davem@davemloft.net>
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Zhao Qiang authored
The at8031 can work on polling mode and interrupt mode. Add ack_interrupt and config intr funcs to enable interrupt mode for it. Signed-off-by: Zhao Qiang <B45475@freescale.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Wang Yufen authored
ERROR: "(foo*)" should be "(foo *)" ERROR: "foo * bar" should be "foo *bar" Suggested-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> Signed-off-by: Wang Yufen <wangyufen@huawei.com> Acked-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Wang Yufen authored
ERROR: open brace '{' following enum go on the same line ERROR: open brace '{' following struct go on the same line ERROR: trailing statements should be on next line Signed-off-by: Wang Yufen <wangyufen@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Wang Yufen authored
WARNING: please, no space before tabs WARNING: please, no spaces at the start of a line ERROR: spaces required around that ':' (ctx:VxW) ERROR: spaces required around that '>' (ctx:VxV) ERROR: spaces required around that '>=' (ctx:VxV) Signed-off-by: Wang Yufen <wangyufen@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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David S. Miller authored
Eric W. Biederman says: ==================== netpoll: Cleanups and fixes This should be a small set of safe cleanups and fixes to netpoll. The fixes are vlan headers are now always inserted when needed, and napi polling is always avoided when network devices are closed. There are a bunch of little cleanups removing unnecessary code, fixing function naming, not taking unnecessary locks and removing general silliness. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
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Eric W. Biederman authored
Stop taking the transmit lock when a network device has specified NETIF_F_LLTX. If no locks needed to trasnmit a packet this is the ideal scenario for netpoll as all packets can be trasnmitted immediately. Even if some locks are needed in ndo_start_xmit skipping any unnecessary serialization is desirable for netpoll as it makes it more likely a debugging packet may be trasnmitted immediately instead of being deferred until later. Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Eric W. Biederman authored
Remove the assumption that the skbs that make it to netpoll_send_skb_on_dev are allocated with find_skb, such that skb->users == 1 and nothing is attached that would prevent the skbs from being freed from hard irq context. Remove this assumption by replacing __kfree_skb on error paths with dev_kfree_skb_irq (in hard irq context) and kfree_skb (in process context). Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Eric W. Biederman authored
The netpoll_rx_enable and netpoll_rx_disable functions have always controlled polling the network drivers transmit and receive queues. Rename them to netpoll_poll_enable and netpoll_poll_disable to make their functionality clear. Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Eric W. Biederman authored
Today netpoll_rx_enable and netpoll_rx_disable are called from dev_close and and __dev_close, and not from dev_close_many. Move the calls into __dev_close_many so that we have a single call site to maintain, and so that dev_close_many gains this protection as well. Which importantly makes batched network device deletes safe. Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Eric W. Biederman authored
Factor out the code that needs to surround ndo_start_xmit from netpoll_send_skb_on_dev into netpoll_start_xmit. It is an unfortunate fact that as the netpoll code has been maintained the primary call site ndo_start_xmit learned how to handle vlans and timestamps but the second call of ndo_start_xmit in queue_process did not. With the introduction of netpoll_start_xmit this associated logic now happens at both call sites of ndo_start_xmit and should make it easy for that to continue into the future. Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Eric W. Biederman authored
The gfp parameter was added in: commit 47be03a2 Author: Amerigo Wang <amwang@redhat.com> Date: Fri Aug 10 01:24:37 2012 +0000 netpoll: use GFP_ATOMIC in slave_enable_netpoll() and __netpoll_setup() slave_enable_netpoll() and __netpoll_setup() may be called with read_lock() held, so should use GFP_ATOMIC to allocate memory. Eric suggested to pass gfp flags to __netpoll_setup(). Cc: Eric Dumazet <eric.dumazet@gmail.com> Cc: "David S. Miller" <davem@davemloft.net> Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: Cong Wang <amwang@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net> The reason for the gfp parameter was removed in: commit c4cdef9b Author: dingtianhong <dingtianhong@huawei.com> Date: Tue Jul 23 15:25:27 2013 +0800 bonding: don't call slave_xxx_netpoll under spinlocks The slave_xxx_netpoll will call synchronize_rcu_bh(), so the function may schedule and sleep, it should't be called under spinlocks. bond_netpoll_setup() and bond_netpoll_cleanup() are always protected by rtnl lock, it is no need to take the read lock, as the slave list couldn't be changed outside rtnl lock. Signed-off-by: Ding Tianhong <dingtianhong@huawei.com> Cc: Jay Vosburgh <fubar@us.ibm.com> Cc: Andy Gospodarek <andy@greyhouse.net> Signed-off-by: David S. Miller <davem@davemloft.net> Nothing else that calls __netpoll_setup or ndo_netpoll_setup requires a gfp paramter, so remove the gfp parameter from both of these functions making the code clearer. Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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David S. Miller authored
Francois Romieu says: ==================== remove open-coded skb_cow_head. As per http://marc.info/?l=linux-netdev&m=139440579104701. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
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françois romieu authored
Signed-off-by: Francois Romieu <romieu@fr.zoreil.com> Cc: Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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françois romieu authored
Signed-off-by: Francois Romieu <romieu@fr.zoreil.com> Cc: Nithin Nayak Sujir <nsujir@broadcom.com> Cc: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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françois romieu authored
Signed-off-by: Francois Romieu <romieu@fr.zoreil.com> Cc: Rasesh Mody <rmody@brocade.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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françois romieu authored
Signed-off-by: Francois Romieu <romieu@fr.zoreil.com> Cc: Jitendra Kalsaria <jitendra.kalsaria@qlogic.com> Cc: Shahed Shaikh <shahed.shaikh@qlogic.com> Cc: Ron Mercer <ron.mercer@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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françois romieu authored
Signed-off-by: Francois Romieu <romieu@fr.zoreil.com> Cc: Guo-Fu Tseng <cooldavid@cooldavid.org> Signed-off-by: David S. Miller <davem@davemloft.net>
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françois romieu authored
Signed-off-by: Francois Romieu <romieu@fr.zoreil.com> Cc: Chris Snook <chris.snook@gmail.com> Cc: Jay Cliburn <jcliburn@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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françois romieu authored
Signed-off-by: Francois Romieu <romieu@fr.zoreil.com> Cc: Jay Cliburn <jcliburn@gmail.com> Cc: Chris Snook <chris.snook@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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françois romieu authored
Signed-off-by: Francois Romieu <romieu@fr.zoreil.com> Cc: Chris Snook <chris.snook@gmail.com> Cc: Jay Cliburn <jcliburn@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Thomas Petazzoni authored
The mvneta driver currently uses of_iomap(), which has two drawbacks: it doesn't request the resource, and it isn't devm-style so some error handling is needed. This commit switches to use devm_ioremap_resource() instead, which automatically requests the resource (so the I/O registers region shows up properly in /proc/iomem), and also is devm-style, which allows to get rid of some error handling to unmap the I/O registers region. Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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- 28 Mar, 2014 18 commits
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git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds authored
Pull networking fixes from David Miller: 1) We've discovered a common error in several networking drivers, they put VLAN offload features into ->vlan_features, which would suggest that they support offloading 2 or more levels of VLAN encapsulation. Not only do these devices not do that, but we don't have the infrastructure yet to handle that at all. Fixes from Vlad Yasevich. 2) Fix tcpdump crash with bridging and vlans, also from Vlad. 3) Some MAINTAINERS updates for random32 and bonding. 4) Fix late reseeds of prandom generator, from Sasha Levin. 5) Bridge doesn't handle stacked vlans properly, fix from Toshiaki Makita. 6) Fix deadlock in openvswitch, from Flavio Leitner. 7) get_timewait4_sock() doesn't report delay times correctly, fix from Eric Dumazet. 8) Duplicate address detection and addrconf verification need to run in contexts where RTNL can be obtained. Move them to run from a workqueue. From Hannes Frederic Sowa. 9) Fix route refcount leaking in ip tunnels, from Pravin B Shelar. 10) Don't return -EINTR from non-blocking recvmsg() on AF_UNIX sockets, from Eric Dumazet. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (28 commits) vlan: Warn the user if lowerdev has bad vlan features. veth: Turn off vlan rx acceleration in vlan_features ifb: Remove vlan acceleration from vlan_features qlge: Do not propaged vlan tag offloads to vlans bridge: Fix crash with vlan filtering and tcpdump net: Account for all vlan headers in skb_mac_gso_segment MAINTAINERS: bonding: change email address MAINTAINERS: bonding: change email address ipv6: move DAD and addrconf_verify processing to workqueue tcp: fix get_timewait4_sock() delay computation on 64bit openvswitch: fix a possible deadlock and lockdep warning bridge: Fix handling stacked vlan tags bridge: Fix inabillity to retrieve vlan tags when tx offload is disabled vhost: validate vhost_get_vq_desc return value vhost: fix total length when packets are too short random32: avoid attempt to late reseed if in the middle of seeding random32: assign to network folks in MAINTAINERS net/mlx4_core: pass pci_device_id.driver_data to __mlx4_init_one during reset core, nfqueue, openvswitch: Orphan frags in skb_zerocopy and handle errors vlan: Set hard_header_len according to available acceleration ...
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David S. Miller authored
Vlad Yasevich says: ==================== Audit all drivers for correct vlan_features. Some drivers set vlan acceleration features in vlan_features. This causes issues with Q-in-Q/802.1ad configurations. Audit all the drivers for correct vlan_features. Fix broken ones. Add a warning to vlan code to help catch future offenders. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
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Vlad Yasevich authored
Some drivers incorrectly assign vlan acceleration features to vlan_features thus causing issues for Q-in-Q vlan configurations. Warn the user of such cases. Signed-off-by: Vlad Yasevich <vyasevic@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Vlad Yasevich authored
For completeness, turn off vlan rx acceleration in vlan_features so that it doesn't show up on q-in-q setups. Signed-off-by: Vlad Yasevich <vyasevic@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Vlad Yasevich authored
Do not include vlan acceleration features in vlan_features as that precludes correct Q-in-Q operation. Signed-off-by: Vlad Yasevich <vyasevic@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Vlad Yasevich authored
qlge driver turns off NETIF_F_HW_CTAG_FILTER, but forgets to turn off HW_CTAG_TX and HW_CTAG_RX on vlan devices. With the current settings, q-in-q will only generate a single vlan header. Remember to mask off CTAG_TX and CTAG_RX features in vlan_features. CC: Shahed Shaikh <shahed.shaikh@qlogic.com> CC: Jitendra Kalsaria <jitendra.kalsaria@qlogic.com> CC: Ron Mercer <ron.mercer@qlogic.com> Signed-off-by: Vlad Yasevich <vyasevic@redhat.com> Acked-by: Jitendra Kalsaria <jitendra.kalsaria@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Vlad Yasevich authored
When the vlan filtering is enabled on the bridge, but the filter is not configured on the bridge device itself, running tcpdump on the bridge device will result in a an Oops with NULL pointer dereference. The reason is that br_pass_frame_up() will bypass the vlan check because promisc flag is set. It will then try to get the table pointer and process the packet based on the table. Since the table pointer is NULL, we oops. Catch this special condition in br_handle_vlan(). Reported-by: Toshiaki Makita <makita.toshiaki@lab.ntt.co.jp> CC: Toshiaki Makita <makita.toshiaki@lab.ntt.co.jp> Signed-off-by: Vlad Yasevich <vyasevic@redhat.com> Acked-by: Toshiaki Makita <makita.toshiaki@lab.ntt.co.jp> Signed-off-by: David S. Miller <davem@davemloft.net>
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Vlad Yasevich authored
skb_network_protocol() already accounts for multiple vlan headers that may be present in the skb. However, skb_mac_gso_segment() doesn't know anything about it and assumes that skb->mac_len is set correctly to skip all mac headers. That may not always be the case. If we are simply forwarding the packet (via bridge or macvtap), all vlan headers may not be accounted for. A simple solution is to allow skb_network_protocol to return the vlan depth it has calculated. This way skb_mac_gso_segment will correctly skip all mac headers. Signed-off-by: Vlad Yasevich <vyasevic@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Veaceslav Falico authored
Signed-off-by: Veaceslav Falico <vfalico@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Jay Vosburgh authored
Update my email address. Signed-off-by: Jay Vosburgh <fubar@us.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Linus Torvalds authored
Merge two fixes from Andrew Morton: "The x86 fix should come from x86 guys but they appear to be conferencing or otherwise distracted. The ocfs2 fix is a bit of a mess - the code runs into an immediate NULL deref and we're trying to work out how this got through test and review, but we haven't heard from Goldwyn in the past few days. Sasha's patch fixes the oops, but the feature as a whole is probably broken. So this is a stopgap for 3.14 - I'll aim to get the real fixes into 3.14.x" * emailed patches from Andrew Morton akpm@linux-foundation.org>: x86: fix boot on uniprocessor systems ocfs2: check if cluster name exists before deref
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Artem Fetishev authored
On x86 uniprocessor systems topology_physical_package_id() returns -1 which causes rapl_cpu_prepare() to leave rapl_pmu variable uninitialized which leads to GPF in rapl_pmu_init(). See arch/x86/kernel/cpu/perf_event_intel_rapl.c. It turns out that physical_package_id and core_id can actually be retreived for uniprocessor systems too. Enabling them also fixes rapl_pmu code. Signed-off-by: Artem Fetishev <artem_fetishev@epam.com> Cc: Stephane Eranian <eranian@google.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Sasha Levin authored
Commit c74a3bdd ("ocfs2: add clustername to cluster connection") is trying to strlcpy a string which was explicitly passed as NULL in the very same patch, triggering a NULL ptr deref. BUG: unable to handle kernel NULL pointer dereference at (null) IP: strlcpy (lib/string.c:388 lib/string.c:151) CPU: 19 PID: 19426 Comm: trinity-c19 Tainted: G W 3.14.0-rc7-next-20140325-sasha-00014-g9476368-dirty #274 RIP: strlcpy (lib/string.c:388 lib/string.c:151) Call Trace: ocfs2_cluster_connect (fs/ocfs2/stackglue.c:350) ocfs2_cluster_connect_agnostic (fs/ocfs2/stackglue.c:396) user_dlm_register (fs/ocfs2/dlmfs/userdlm.c:679) dlmfs_mkdir (fs/ocfs2/dlmfs/dlmfs.c:503) vfs_mkdir (fs/namei.c:3467) SyS_mkdirat (fs/namei.c:3488 fs/namei.c:3472) tracesys (arch/x86/kernel/entry_64.S:749) akpm: this patch probably disables the feature. A temporary thing to avoid triviel oopses. Signed-off-by: Sasha Levin <sasha.levin@oracle.com> Cc: Goldwyn Rodrigues <rgoldwyn@suse.com> Cc: Mark Fasheh <mfasheh@suse.de> Cc: Joel Becker <jlbec@evilplan.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Hannes Frederic Sowa authored
addrconf_join_solict and addrconf_join_anycast may cause actions which need rtnl locked, especially on first address creation. A new DAD state is introduced which defers processing of the initial DAD processing into a workqueue. To get rtnl lock we need to push the code paths which depend on those calls up to workqueues, specifically addrconf_verify and the DAD processing. (v2) addrconf_dad_failure needs to be queued up to the workqueue, too. This patch introduces a new DAD state and stop the DAD processing in the workqueue (this is because of the possible ipv6_del_addr processing which removes the solicited multicast address from the device). addrconf_verify_lock is removed, too. After the transition it is not needed any more. As we are not processing in bottom half anymore we need to be a bit more careful about disabling bottom half out when we lock spin_locks which are also used in bh. Relevant backtrace: [ 541.030090] RTNL: assertion failed at net/core/dev.c (4496) [ 541.031143] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G O 3.10.33-1-amd64-vyatta #1 [ 541.031145] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2007 [ 541.031146] ffffffff8148a9f0 000000000000002f ffffffff813c98c1 ffff88007c4451f8 [ 541.031148] 0000000000000000 0000000000000000 ffffffff813d3540 ffff88007fc03d18 [ 541.031150] 0000880000000006 ffff88007c445000 ffffffffa0194160 0000000000000000 [ 541.031152] Call Trace: [ 541.031153] <IRQ> [<ffffffff8148a9f0>] ? dump_stack+0xd/0x17 [ 541.031180] [<ffffffff813c98c1>] ? __dev_set_promiscuity+0x101/0x180 [ 541.031183] [<ffffffff813d3540>] ? __hw_addr_create_ex+0x60/0xc0 [ 541.031185] [<ffffffff813cfe1a>] ? __dev_set_rx_mode+0xaa/0xc0 [ 541.031189] [<ffffffff813d3a81>] ? __dev_mc_add+0x61/0x90 [ 541.031198] [<ffffffffa01dcf9c>] ? igmp6_group_added+0xfc/0x1a0 [ipv6] [ 541.031208] [<ffffffff8111237b>] ? kmem_cache_alloc+0xcb/0xd0 [ 541.031212] [<ffffffffa01ddcd7>] ? ipv6_dev_mc_inc+0x267/0x300 [ipv6] [ 541.031216] [<ffffffffa01c2fae>] ? addrconf_join_solict+0x2e/0x40 [ipv6] [ 541.031219] [<ffffffffa01ba2e9>] ? ipv6_dev_ac_inc+0x159/0x1f0 [ipv6] [ 541.031223] [<ffffffffa01c0772>] ? addrconf_join_anycast+0x92/0xa0 [ipv6] [ 541.031226] [<ffffffffa01c311e>] ? __ipv6_ifa_notify+0x11e/0x1e0 [ipv6] [ 541.031229] [<ffffffffa01c3213>] ? ipv6_ifa_notify+0x33/0x50 [ipv6] [ 541.031233] [<ffffffffa01c36c8>] ? addrconf_dad_completed+0x28/0x100 [ipv6] [ 541.031241] [<ffffffff81075c1d>] ? task_cputime+0x2d/0x50 [ 541.031244] [<ffffffffa01c38d6>] ? addrconf_dad_timer+0x136/0x150 [ipv6] [ 541.031247] [<ffffffffa01c37a0>] ? addrconf_dad_completed+0x100/0x100 [ipv6] [ 541.031255] [<ffffffff8105313a>] ? call_timer_fn.isra.22+0x2a/0x90 [ 541.031258] [<ffffffffa01c37a0>] ? addrconf_dad_completed+0x100/0x100 [ipv6] Hunks and backtrace stolen from a patch by Stephen Hemminger. Reported-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
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Eric Dumazet authored
Dropping packets in __dev_queue_xmit() when transmit queue is stopped (NIC TX ring buffer full or BQL limit reached) currently outputs a syslog message. It would be better to get a precise count of such events available in netdevice stats so that monitoring tools can have a clue. This extends the work done in caf586e5 ("net: add a core netdev->rx_dropped counter") Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Daniel Borkmann authored
Quite often it can be useful to test with dummy or similar devices as a blackhole sink for skbs. Such devices are only equipped with a single txq, but marked as NETIF_F_LLTX as they do not require locking their internal queues on xmit (or implement locking themselves). Therefore, rather use HARD_TX_{UN,}LOCK API, so that NETIF_F_LLTX will be respected. trafgen mmap/TX_RING example against dummy device with config foo: { fill(0xff, 64) } results in the following performance improvements for such scenarios on an ordinary Core i7/2.80GHz: Before: Performance counter stats for 'trafgen -i foo -o du0 -n100000000' (10 runs): 160,975,944,159 instructions:k # 0.55 insns per cycle ( +- 0.09% ) 293,319,390,278 cycles:k # 0.000 GHz ( +- 0.35% ) 192,501,104 branch-misses:k ( +- 1.63% ) 831 context-switches:k ( +- 9.18% ) 7 cpu-migrations:k ( +- 7.40% ) 69,382 cache-misses:k # 0.010 % of all cache refs ( +- 2.18% ) 671,552,021 cache-references:k ( +- 1.29% ) 22.856401569 seconds time elapsed ( +- 0.33% ) After: Performance counter stats for 'trafgen -i foo -o du0 -n100000000' (10 runs): 133,788,739,692 instructions:k # 0.92 insns per cycle ( +- 0.06% ) 145,853,213,256 cycles:k # 0.000 GHz ( +- 0.17% ) 59,867,100 branch-misses:k ( +- 4.72% ) 384 context-switches:k ( +- 3.76% ) 6 cpu-migrations:k ( +- 6.28% ) 70,304 cache-misses:k # 0.077 % of all cache refs ( +- 1.73% ) 90,879,408 cache-references:k ( +- 1.35% ) 11.719372413 seconds time elapsed ( +- 0.24% ) Signed-off-by: Daniel Borkmann <dborkman@redhat.com> Cc: Jesper Dangaard Brouer <brouer@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Daniel Borkmann authored
As in xmit path we merely update statistics and free the skb, we can mark the device with LLTX feature, so that upper layers can avoid taking the single txq lock on xmit. While at it, also add missing NETIF_F_SG. Signed-off-by: Daniel Borkmann <dborkman@redhat.com> Acked-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Eric Dumazet authored
It seems I missed one change in get_timewait4_sock() to compute the remaining time before deletion of IPV4 timewait socket. This could result in wrong output in /proc/net/tcp for tm->when field. Fixes: 96f817fe ("tcp: shrink tcp6_timewait_sock by one cache line") Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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