- 06 8月, 2014 35 次提交
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git://git.kernel.org/pub/scm/linux/kernel/git/davem/net由 David S. Miller 提交于
Conflicts: drivers/net/Makefile net/ipv6/sysctl_net_ipv6.c Two ipv6_table_template[] additions overlap, so the index of the ipv6_table[x] assignments needed to be adjusted. In the drivers/net/Makefile case, we've gotten rid of the garbage whereby we had to list every single USB networking driver in the top-level Makefile, there is just one "USB_NETWORKING" that guards everything. Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Anish Bhatt 提交于
Enabling a Virtual Interface can result in an interrupt during the processing of the VI Enable command and, in some paths, result in an attempt to issue another command in the interrupt context, eventually crashing the system. Thus, we disable interrupts during the course of the VI Enable command and ensure enable doesn't sleep. Signed-off-by: NAnish Bhatt <anish@chelsio.com> Signed-off-by: NCasey Leedom <leedom@chelsio.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Francois Romieu 提交于
USB network drivers are already handled in drivers/net/usb/Kconfig. Let's save the maintenance burden of dependencies in drivers/net/Makefile. The newly introduced USB_NET_DRIVERS umbrella config option defaults to 'y' so as to minimize the changes of behavior. Signed-off-by: NFrancois Romieu <romieu@fr.zoreil.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Prashant Sreedharan 提交于
tg3_tso_bug() was originally designed to handle only HW TX ring 0, Commit d3f6f3a1 ("tg3: Prevent page allocation failure during TSO workaround") changed the driver logic to use tg3_tso_bug() for all HW TX rings that are enabled. This patch fixes the regression by modifying tg3_tso_bug() to handle multiple HW TX rings. Signed-off-by: NPrashant Sreedharan <prashant@broadcom.com> Signed-off-by: NMichael Chan <mchan@broadcom.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 David S. Miller 提交于
Tom Lendacky says: ==================== amd-xgbe: AMD XGBE driver update 2014-08-05 The following series of patches includes fixes/updates to the driver. - Use dma_set_mask_and_coherent to set the DMA mask - Move the phy connect/disconnect logic to allow for module unloading Changes in V2: - Check the return value of the dma_set_mask_and_coherent call ==================== Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Lendacky, Thomas 提交于
A change added to the mdiobus/phy api added a module_get/module_put during phy connect/disconnect processing. Currently, the driver performs a phy connect during module probe and a phy disconnect during module remove. With the addition of the module_get during phy connect the amd-xgbe module use count is incremented and can no longer be unloaded. Move the phy connect/disconnect from the driver probe/remove functions to the net_device_ops ndo_open/ndo_stop functions. This allows the module use count to be decremented when the device(s) are brought down and allows the module to be unloaded. Signed-off-by: NTom Lendacky <thomas.lendacky@amd.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Lendacky, Thomas 提交于
Use the dma_set_mask_and_coherent function to set the DMA mask rather than setting the DMA mask fields directly. This was originally done to work around a bug in the arm64 DMA support when RAM started above the 4GB boundary which has since been fixed. Signed-off-by: NTom Lendacky <thomas.lendacky@amd.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Marc Zyngier 提交于
Upon reception of a new frame, the emac driver checks for a number of error conditions, and flag the packet as "bad" if any of these are present. It then allocates a skb unconditionally, but only uses it if the packet is "good". On the error path, the skb is just forgotten, and the system leaks memory. The piece of junk I have on my desk seems to encounter such error frequently enough so that the box goes OOM after a couple of days, which makes me grumpy. Fix this by moving the allocation on the "good_packet" path (and convert it to netdev_alloc_skb while we're at it). Tested on a random Allwinner A20 board. Cc: Stefan Roese <sr@denx.de> Cc: Maxime Ripard <maxime.ripard@free-electrons.com> Cc: <stable@vger.kernel.org> # 3.11+ Signed-off-by: NMarc Zyngier <marc.zyngier@arm.com> Acked-by: NMaxime Ripard <maxime.ripard@free-electrons.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Eric Dumazet 提交于
Dave reported following splat, caused by improper use of IP_INC_STATS_BH() in process context. BUG: using __this_cpu_add() in preemptible [00000000] code: trinity-c117/14551 caller is __this_cpu_preempt_check+0x13/0x20 CPU: 3 PID: 14551 Comm: trinity-c117 Not tainted 3.16.0+ #33 ffffffff9ec898f0 0000000047ea7e23 ffff88022d32f7f0 ffffffff9e7ee207 0000000000000003 ffff88022d32f818 ffffffff9e397eaa ffff88023ee70b40 ffff88022d32f970 ffff8801c026d580 ffff88022d32f828 ffffffff9e397ee3 Call Trace: [<ffffffff9e7ee207>] dump_stack+0x4e/0x7a [<ffffffff9e397eaa>] check_preemption_disabled+0xfa/0x100 [<ffffffff9e397ee3>] __this_cpu_preempt_check+0x13/0x20 [<ffffffffc0839872>] sctp_packet_transmit+0x692/0x710 [sctp] [<ffffffffc082a7f2>] sctp_outq_flush+0x2a2/0xc30 [sctp] [<ffffffff9e0d985c>] ? mark_held_locks+0x7c/0xb0 [<ffffffff9e7f8c6d>] ? _raw_spin_unlock_irqrestore+0x5d/0x80 [<ffffffffc082b99a>] sctp_outq_uncork+0x1a/0x20 [sctp] [<ffffffffc081e112>] sctp_cmd_interpreter.isra.23+0x1142/0x13f0 [sctp] [<ffffffffc081c86b>] sctp_do_sm+0xdb/0x330 [sctp] [<ffffffff9e0b8f1b>] ? preempt_count_sub+0xab/0x100 [<ffffffffc083b350>] ? sctp_cname+0x70/0x70 [sctp] [<ffffffffc08389ca>] sctp_primitive_ASSOCIATE+0x3a/0x50 [sctp] [<ffffffffc083358f>] sctp_sendmsg+0x88f/0xe30 [sctp] [<ffffffff9e0d673a>] ? lock_release_holdtime.part.28+0x9a/0x160 [<ffffffff9e0d62ce>] ? put_lock_stats.isra.27+0xe/0x30 [<ffffffff9e73b624>] inet_sendmsg+0x104/0x220 [<ffffffff9e73b525>] ? inet_sendmsg+0x5/0x220 [<ffffffff9e68ac4e>] sock_sendmsg+0x9e/0xe0 [<ffffffff9e1c0c09>] ? might_fault+0xb9/0xc0 [<ffffffff9e1c0bae>] ? might_fault+0x5e/0xc0 [<ffffffff9e68b234>] SYSC_sendto+0x124/0x1c0 [<ffffffff9e0136b0>] ? syscall_trace_enter+0x250/0x330 [<ffffffff9e68c3ce>] SyS_sendto+0xe/0x10 [<ffffffff9e7f9be4>] tracesys+0xdd/0xe2 This is a followup of commits f1d8cba6 ("inet: fix possible seqlock deadlocks") and 7f88c6b2 ("ipv6: fix possible seqlock deadlock in ip6_finish_output2") Signed-off-by: NEric Dumazet <edumazet@google.com> Cc: Hannes Frederic Sowa <hannes@stressinduktion.org> Reported-by: NDave Jones <davej@redhat.com> Acked-by: NNeil Horman <nhorman@tuxdriver.com> Acked-by: NHannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Fabio Estevam 提交于
Commit a71e3c37 ("net: phy: Set the driver when registering an MDIO bus device") caused the following regression on the fec driver: root@imx6qsabresd:~# echo mem > /sys/power/state PM: Syncing filesystems ... done. Freezing user space processes ... (elapsed 0.003 seconds) done. Freezing remaining freezable tasks ... (elapsed 0.002 seconds) done. Unable to handle kernel NULL pointer dereference at virtual address 0000002c pgd = bcd14000 [0000002c] *pgd=4d9e0831, *pte=00000000, *ppte=00000000 Internal error: Oops: 17 [#1] SMP ARM Modules linked in: CPU: 0 PID: 617 Comm: sh Not tainted 3.16.0 #17 task: bc0c4e00 ti: bceb6000 task.ti: bceb6000 PC is at fec_suspend+0x10/0x70 LR is at dpm_run_callback.isra.7+0x34/0x6c pc : [<803f8a98>] lr : [<80361f44>] psr: 600f0013 sp : bceb7d70 ip : bceb7d88 fp : bceb7d84 r10: 8091523c r9 : 00000000 r8 : bd88f478 r7 : 803f8a88 r6 : 81165988 r5 : 00000000 r4 : 00000000 r3 : 00000000 r2 : 00000000 r1 : bd88f478 r0 : bd88f478 Flags: nZCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment user Control: 10c5387d Table: 4cd1404a DAC: 00000015 Process sh (pid: 617, stack limit = 0xbceb6240) Stack: (0xbceb7d70 to 0xbceb8000) .... The problem with the original commit is explained by Russell King: "It has the effect (as can be seen from the oops) of attaching the MDIO bus device (itself is a bus-less device) to the platform driver, which means that if the platform driver supports power management, it will be called to power manage the MDIO bus device. Moreover, drivers do not expect to be called for power management operations for devices which they haven't probed, and certainly not for devices which aren't part of the same bus that the driver is registered against." This reverts commit a71e3c37. Cc: <stable@vger.kernel.org> #3.16 Signed-off-by: NFabio Estevam <fabio.estevam@freescale.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Hariprasad Shenai 提交于
Need to turn off SGE RX/TX Callback Timers & interrupt in cxgb4vf PCI Shutdown routine in order to prevent crashes during reboot/poweroff when traffic is running. Signed-off-by: NHariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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git://git.open-mesh.org/linux-merge由 David S. Miller 提交于
Antonio Quartulli says: ==================== pull request: batman-adv 2014-08-05 this is a pull request intended for net-next/linux-3.17 (yeah..it's really late). Patches 1, 2 and 4 are really minor changes: - kmalloc_array is substituted to kmalloc when possible (as suggested by checkpatch); - net_ratelimited() is now used properly and the "suppressed" message is not printed anymore if not needed; - the internal version number has been increased to reflect our current version. Patch 3 instead is introducing a change in the metric computation function by changing the penalty applied at each mesh hop from 15/255 (~6%) to 30/255 (~11%). This change is introduced by Simon Wunderlich after having observed a performance improvement in several networks when using the new value. ==================== Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Toshiaki Makita 提交于
The variable "err" is not necessary. Return register_netdevice() directly. Signed-off-by: NToshiaki Makita <makita.toshiaki@lab.ntt.co.jp> Acked-by: NJiri Pirko <jiri@resnulli.us> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Toshiaki Makita 提交于
Now bridge ports can be non-promiscuous, vlan_vid_add() is no longer an unnecessary operation. Signed-off-by: NToshiaki Makita <makita.toshiaki@lab.ntt.co.jp> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 David S. Miller 提交于
Willem de Bruijn says: ==================== net-timestamp: new tx tstamps and tcp Extend socket tx timestamping: - allow multiple types of software timestamps aside from send (1) - add software timestamp on enter packet scheduling (4) - add software timestamp for TCP (5) - add software timestamp for TCP on ACK (6) The sk_flags option space is nearly exhausted. Also move the many timestamp options to a new sk->sk_tstamps (2). To disambiguate data when tstamps may arrive out of order, optionally return a sequential ID assigned at send (3). Extend Linux tx timestamping to monitoring of latency incurred within the kernel stack and to protocols embedded in TCP. Complex kernel setups may have multiple layers of queueing, including multiple instances of packet scheduling, and many classes per layer. Many applications embed discrete payloads into TCP bytestreams for reliability, flow control, etcetera. Detecting application tail latency in such scenarios relies on identifying the exact queue responsible if on the host, or the network latency if otherwise. Changelog: v4->v5 - define SCM_TSTAMP_SND == 0, for legacy behavior - add TCP tstamps without changing the generated byte stream - modify GSO and ACK to find offset: slightly more complex than previous invariant that it is the last byte - consistent naming of packet scheduling - rename SCM_TSTAMP_ENQ to SCM_TSTAMP_SCHED - add unique key in ee_data - add id field in ee_info to disambiguate tstamps - optional, only on new flag SOF_TIMESTAMPING_OPT_ID - for bytestream, in bytes v3->v4 - (v3 review comment) removed skb->mark packet identification (*A) - (v3 review comment) fixed indentation - tcp: fixed poll() to return POLLERR on non-zero queue - rebased to work without syststamp - comments: removed all traces of MSG_TSTAMP_.. (*B) v2->v3 - extend the SO_TIMESTAMPING API, instead of defining a new one. - add protocol independent support to correlate tstamps with data, based on returning skb->mark. - removed no-payload optimization and documentation (for now): I have a follow-on patch that reintroduces MSG_TSTAMP along with a new socket option SOF_TIMESTAMPING_OPT_ONFLAG. This is equivalent to sequence setsockopt(<enable>); send(..); setsockopt(<disable>), but avoids the need to define a MSG_TSTAMP_<TYPE> for each type. I will leave these three patches as follow-on, as this patchset is large enough as is. v1->v2 - expand timestamping (existing and new) to SOCK_RAW and ping sockets - rename sock_errqueue_timestamping to scm_timestamping - change timestamp data format: do not add fields to scm_timestamping. Doing so could break legacy applications. Instead, communicate through an existing, but unused, field in the error message. - rename SOF_.._OPT_TX_NO_PAYLOAD to shorter SOF_.._OPT_TSONLY - move msg_tstamp test app out of patchset and to github git://github.com/wdebruij/kerneltools.git ==================== Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Willem de Bruijn 提交于
Add SOF_TIMESTAMPING_TX_ACK, a request for a tstamp when the last byte in the send() call is acknowledged. It implements the feature for TCP. The timestamp is generated when the TCP socket cumulative ACK is moved beyond the tracked seqno for the first time. The feature ignores SACK and FACK, because those acknowledge the specific byte, but not necessarily the entire contents of the buffer up to that byte. Signed-off-by: NWillem de Bruijn <willemb@google.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Willem de Bruijn 提交于
TCP timestamping extends SO_TIMESTAMPING to bytestreams. Bytestreams do not have a 1:1 relationship between send() buffers and network packets. The feature interprets a send call on a bytestream as a request for a timestamp for the last byte in that send() buffer. The choice corresponds to a request for a timestamp when all bytes in the buffer have been sent. That assumption depends on in-order kernel transmission. This is the common case. That said, it is possible to construct a traffic shaping tree that would result in reordering. The guarantee is strong, then, but not ironclad. This implementation supports send and sendpages (splice). GSO replaces one large packet with multiple smaller packets. This patch also copies the option into the correct smaller packet. This patch does not yet support timestamping on data in an initial TCP Fast Open SYN, because that takes a very different data path. If ID generation in ee_data is enabled, bytestream timestamps return a byte offset, instead of the packet counter for datagrams. The implementation supports a single timestamp per packet. It silenty replaces requests for previous timestamps. To avoid missing tstamps, flush the tcp queue by disabling Nagle, cork and autocork. Missing tstamps can be detected by offset when the ee_data ID is enabled. Implementation details: - On GSO, the timestamping code can be included in the main loop. I moved it into its own loop to reduce the impact on the common case to a single branch. - To avoid leaking the absolute seqno to userspace, the offset returned in ee_data must always be relative. It is an offset between an skb and sk field. The first is always set (also for GSO & ACK). The second must also never be uninitialized. Only allow the ID option on sockets in the ESTABLISHED state, for which the seqno is available. Never reset it to zero (instead, move it to the current seqno when reenabling the option). Signed-off-by: NWillem de Bruijn <willemb@google.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Willem de Bruijn 提交于
Kernel transmit latency is often incurred in the packet scheduler. Introduce a new timestamp on transmission just before entering the scheduler. When data travels through multiple devices (bonding, tunneling, ...) each device will export an individual timestamp. Signed-off-by: NWillem de Bruijn <willemb@google.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Willem de Bruijn 提交于
Datagrams timestamped on transmission can coexist in the kernel stack and be reordered in packet scheduling. When reading looped datagrams from the socket error queue it is not always possible to unique correlate looped data with original send() call (for application level retransmits). Even if possible, it may be expensive and complex, requiring packet inspection. Introduce a data-independent ID mechanism to associate timestamps with send calls. Pass an ID alongside the timestamp in field ee_data of sock_extended_err. The ID is a simple 32 bit unsigned int that is associated with the socket and incremented on each send() call for which software tx timestamp generation is enabled. The feature is enabled only if SOF_TIMESTAMPING_OPT_ID is set, to avoid changing ee_data for existing applications that expect it 0. The counter is reset each time the flag is reenabled. Reenabling does not change the ID of already submitted data. It is possible to receive out of order IDs if the timestamp stream is not quiesced first. Signed-off-by: NWillem de Bruijn <willemb@google.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Willem de Bruijn 提交于
sk_flags is reaching its limit. New timestamping options will not fit. Move all of them into a new field sk->sk_tsflags. Added benefit is that this removes boilerplate code to convert between SOF_TIMESTAMPING_.. and SOCK_TIMESTAMPING_.. in getsockopt/setsockopt. SOCK_TIMESTAMPING_RX_SOFTWARE is also used to toggle the receive timestamp logic (netstamp_needed). That can be simplified and this last key removed, but will leave that for a separate patch. Signed-off-by: NWillem de Bruijn <willemb@google.com> ---- The u16 in sock can be moved into a 16-bit hole below sk_gso_max_segs, though that scatters tstamp fields throughout the struct. Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Willem de Bruijn 提交于
Applications that request kernel tx timestamps with SO_TIMESTAMPING read timestamps as recvmsg() ancillary data. The response is defined implicitly as timespec[3]. 1) define struct scm_timestamping explicitly and 2) add support for new tstamp types. On tx, scm_timestamping always accompanies a sock_extended_err. Define previously unused field ee_info to signal the type of ts[0]. Introduce SCM_TSTAMP_SND to define the existing behavior. The reception path is not modified. On rx, no struct similar to sock_extended_err is passed along with SCM_TIMESTAMPING. Signed-off-by: NWillem de Bruijn <willemb@google.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Anish Bhatt 提交于
These belong to the t4 msg header, will ensure there is no accidental code duplication in the future Signed-off-by: NAnish Bhatt <anish@chelsio.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Neal Cardwell 提交于
This commit reduces spurious retransmits due to apparent SACK reneging by only reacting to SACK reneging that persists for a short delay. When a sequence space hole at snd_una is filled, some TCP receivers send a series of ACKs as they apparently scan their out-of-order queue and cumulatively ACK all the packets that have now been consecutiveyly received. This is essentially misbehavior B in "Misbehaviors in TCP SACK generation" ACM SIGCOMM Computer Communication Review, April 2011, so we suspect that this is from several common OSes (Windows 2000, Windows Server 2003, Windows XP). However, this issue has also been seen in other cases, e.g. the netdev thread "TCP being hoodwinked into spurious retransmissions by lack of timestamps?" from March 2014, where the receiver was thought to be a BSD box. Since snd_una would temporarily be adjacent to a previously SACKed range in these scenarios, this receiver behavior triggered the Linux SACK reneging code path in the sender. This led the sender to clear the SACK scoreboard, enter CA_Loss, and spuriously retransmit (potentially) every packet from the entire write queue at line rate just a few milliseconds before the ACK for each packet arrives at the sender. To avoid such situations, now when a sender sees apparent reneging it does not yet retransmit, but rather adjusts the RTO timer to give the receiver a little time (max(RTT/2, 10ms)) to send us some more ACKs that will restore sanity to the SACK scoreboard. If the reneging persists until this RTO then, as before, we clear the SACK scoreboard and enter CA_Loss. A 10ms delay tolerates a receiver sending such a stream of ACKs at 56Kbit/sec. And to allow for receivers with slower or more congested paths, we wait for at least RTT/2. We validated the resulting max(RTT/2, 10ms) delay formula with a mix of North American and South American Google web server traffic, and found that for ACKs displaying transient reneging: (1) 90% of inter-ACK delays were less than 10ms (2) 99% of inter-ACK delays were less than RTT/2 In tests on Google web servers this commit reduced reneging events by 75%-90% (as measured by the TcpExtTCPSACKReneging counter), without any measurable impact on latency for user HTTP and SPDY requests. Signed-off-by: NNeal Cardwell <ncardwell@google.com> Signed-off-by: NYuchung Cheng <ycheng@google.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 David S. Miller 提交于
Rajesh Borundia says: ==================== qlcnic: Bug fixes The patch series contains following bug fixes. * Aggregating tx stats in adapter variable was resulting in increase of stats when user runs ifconfig command and no traffic is running. Instead aggregate tx stats in local variable and then assign it to adapter struct variable. * Set_driver_version was called after registering netdev which was resulting in a race between FLR in open handler and set_driver_version command as open handler can be called simulatneously on another cpu even if probe is not complete. So call this command before registering netdev. * dcbnl_ops should be initialized before registering netdev as they are referenced in open handler. ==================== Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Rajesh Borundia 提交于
o Initialization of dcbnl_ops after register netdev may result in dcbnl_ops not getting set before it is being accessed from open. So, moving it before register_netdev. Signed-off-by: NRajesh Borundia <rajesh.borundia@qlogic.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Rajesh Borundia 提交于
o Earlier, set_drv_version was getting called after register_netdev. This was resulting in a race between set_drv_version and FLR called from open(). Moving set_drv_version before register_netdev avoids the race. o Log response code in error message on CDRP failure. Signed-off-by: NRajesh Borundia <rajesh.borundia@qlogic.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Rajesh Borundia 提交于
o Aggregating tx stats in adapter variable was resulting in an increase in stats even after no traffic was run and user runs ifconfig/ethtool command. o qlcnic_update_stats used to accumulate stats in adapter struct at each function call, instead accumulate tx stats in local variable and then assign it to adapter structure. Reported-by: NHolger Kiehl <holger.kiehl@dwd.de> Signed-off-by: NRajesh Borundia <rajesh.borundia@qlogic.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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git://git.open-mesh.org/linux-merge由 David S. Miller 提交于
Antonio Quartulli says: ==================== pull request net: batman-adv 2014-08-04 this is a pull request intended for net. It just contains a patch by Sven Eckelmann that fixes the reception of out-of-order fragments. As explained in the commit message, the issue was due to a wrong assumption about hlist_for_each_entry() in batadv_frag_insert_packet(). ==================== Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 David S. Miller 提交于
Zoltan Kiss says: ==================== xen-netback: Changes around carrier handling This series starts using carrier off as a way to purge packets when the guest is not able (or willing) to receive them. It is a much faster way to get rid of packets waiting for an overwhelmed guest. The first patch changes current netback code where it relies currently on netif_carrier_ok. The second turns off the carrier if the guest times out on a queue, and only turn it on again if that queue (or queues) resurrects. ==================== Signed-off-by: NZoltan Kiss <zoltan.kiss@citrix.com> Signed-off-by: NDavid Vrabel <david.vrabel@citrix.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Zoltan Kiss 提交于
Currently when the guest is not able to receive more packets, qdisc layer starts a timer, and when it goes off, qdisc is started again to deliver a packet again. This is a very slow way to drain the queues, consumes unnecessary resources and slows down other guests shutdown. This patch change the behaviour by turning the carrier off when that timer fires, so all the packets are freed up which were stucked waiting for that vif. Instead of the rx_queue_purge bool it uses the VIF_STATUS_RX_PURGE_EVENT bit to signal the thread that either the timeout happened or an RX interrupt arrived, so the thread can check what it should do. It also disables NAPI, so the guest can't transmit, but leaves the interrupts on, so it can resurrect. Only the queues which brought down the interface can enable it again, the bit QUEUE_STATUS_RX_STALLED makes sure of that. Signed-off-by: NZoltan Kiss <zoltan.kiss@citrix.com> Signed-off-by: NDavid Vrabel <david.vrabel@citrix.com> Cc: netdev@vger.kernel.org Cc: linux-kernel@vger.kernel.org Cc: xen-devel@lists.xenproject.org Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Zoltan Kiss 提交于
This patch introduces a new state bit VIF_STATUS_CONNECTED to track whether the vif is in a connected state. Using carrier will not work with the next patch in this series, which aims to turn the carrier temporarily off if the guest doesn't seem to be able to receive packets. Signed-off-by: NZoltan Kiss <zoltan.kiss@citrix.com> Signed-off-by: NDavid Vrabel <david.vrabel@citrix.com> Cc: netdev@vger.kernel.org Cc: linux-kernel@vger.kernel.org Cc: xen-devel@lists.xenproject.org v2: - rename the bitshift type to "enum state_bit_shift" here, not in the next patch Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 David S. Miller 提交于
Merge tag 'master-2014-07-31' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next Conflicts: net/6lowpan/iphc.c Minor conflicts in iphc.c were changes overlapping with some style cleanups. John W. Linville says: ==================== Please pull this last(?) batch of wireless change intended for the 3.17 stream... For the NFC bits, Samuel says: "This is a rather quiet one, we have: - A new driver from ST Microelectronics for their NCI ST21NFCB, including device tree support. - p2p support for the ST21NFCA driver - A few fixes an enhancements for the NFC digital laye" For the Atheros bits, Kalle says: "Michal and Janusz did some important RX aggregation fixes, basically we were missing RX reordering altogether. The 10.1 firmware doesn't support Ad-Hoc mode and Michal fixed ath10k so that it doesn't advertise Ad-Hoc support with that firmware. Also he implemented a workaround for a KVM issue." For the Bluetooth bits, Gustavo and Johan say: "To quote Gustavo from his previous request: 'Some last minute fixes for -next. We have a fix for a use after free in RFCOMM, another fix to an issue with ADV_DIRECT_IND and one for ADV_IND with auto-connection handling. Last, we added support for reading the codec and MWS setting for controllers that support these features.' Additionally there are fixes to LE scanning, an update to conform to the 4.1 core specification as well as fixes for tracking the page scan state. All of these fixes are important for 3.17." And, "We've got: - 6lowpan fixes/cleanups - A couple crash fixes, one for the Marvell HCI driver and another in LE SMP. - Fix for an incorrect connected state check - Fix for the bondable requirement during pairing (an issue which had crept in because of using "pairable" when in fact the actual meaning was "bondable" (these have different meanings in Bluetooth)" Along with those are some late-breaking hardware support patches in brcmfmac and b43 as well as a stray ath9k patch. ==================== Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Ricardo Ribalda 提交于
After this patch: [ 32.985530] hso: drivers/net/usb/hso.c: Option Wireless [ 33.000452] hso 2-1.4:1.7: Not our interface [ 33.001849] usbcore: registered new interface driver hso root@qt5022:~# ls /dev/ttyHS* /dev/ttyHS0 /dev/ttyHS1 /dev/ttyHS2 /dev/ttyHS3 /dev/ttyHS4 /dev/ttyHS5 root@qt5022:~# lsusb -d 0af0: -vvv Bus 002 Device 003: ID 0af0:9200 Option Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 2.00 bDeviceClass 255 Vendor Specific Class bDeviceSubClass 255 Vendor Specific Subclass bDeviceProtocol 255 Vendor Specific Protocol bMaxPacketSize0 64 idVendor 0x0af0 Option idProduct 0x9200 bcdDevice 0.00 iManufacturer 3 Option N.V. iProduct 2 Globetrotter HSUPA Modem iSerial 0 bNumConfigurations 1 Configuration Descriptor: bLength 9 bDescriptorType 2 wTotalLength 200 bNumInterfaces 8 bConfigurationValue 1 iConfiguration 1 Option Configuration bmAttributes 0xe0 Self Powered Remote Wakeup MaxPower 100mA Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 0 bAlternateSetting 0 bNumEndpoints 2 bInterfaceClass 255 Vendor Specific Class bInterfaceSubClass 255 Vendor Specific Subclass bInterfaceProtocol 255 Vendor Specific Protocol iInterface 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x81 EP 1 IN bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0200 1x 512 bytes bInterval 32 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x01 EP 1 OUT bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0200 1x 512 bytes bInterval 32 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 1 bAlternateSetting 0 bNumEndpoints 2 bInterfaceClass 255 Vendor Specific Class bInterfaceSubClass 255 Vendor Specific Subclass bInterfaceProtocol 255 Vendor Specific Protocol iInterface 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x82 EP 2 IN bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0200 1x 512 bytes bInterval 32 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x02 EP 2 OUT bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0200 1x 512 bytes bInterval 32 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 2 bAlternateSetting 0 bNumEndpoints 2 bInterfaceClass 255 Vendor Specific Class bInterfaceSubClass 255 Vendor Specific Subclass bInterfaceProtocol 255 Vendor Specific Protocol iInterface 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x83 EP 3 IN bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0200 1x 512 bytes bInterval 32 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x03 EP 3 OUT bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0200 1x 512 bytes bInterval 32 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 3 bAlternateSetting 0 bNumEndpoints 2 bInterfaceClass 255 Vendor Specific Class bInterfaceSubClass 255 Vendor Specific Subclass bInterfaceProtocol 255 Vendor Specific Protocol iInterface 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x84 EP 4 IN bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0200 1x 512 bytes bInterval 32 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x04 EP 4 OUT bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0200 1x 512 bytes bInterval 32 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 4 bAlternateSetting 0 bNumEndpoints 2 bInterfaceClass 255 Vendor Specific Class bInterfaceSubClass 255 Vendor Specific Subclass bInterfaceProtocol 255 Vendor Specific Protocol iInterface 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x85 EP 5 IN bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0200 1x 512 bytes bInterval 32 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x05 EP 5 OUT bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0200 1x 512 bytes bInterval 32 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 5 bAlternateSetting 0 bNumEndpoints 2 bInterfaceClass 255 Vendor Specific Class bInterfaceSubClass 255 Vendor Specific Subclass bInterfaceProtocol 255 Vendor Specific Protocol iInterface 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x06 EP 6 OUT bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0200 1x 512 bytes bInterval 32 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x86 EP 6 IN bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0200 1x 512 bytes bInterval 32 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 6 bAlternateSetting 0 bNumEndpoints 3 bInterfaceClass 255 Vendor Specific Class bInterfaceSubClass 255 Vendor Specific Subclass bInterfaceProtocol 255 Vendor Specific Protocol iInterface 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x87 EP 7 IN bmAttributes 3 Transfer Type Interrupt Synch Type None Usage Type Data wMaxPacketSize 0x0040 1x 64 bytes bInterval 5 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x88 EP 8 IN bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0200 1x 512 bytes bInterval 32 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x07 EP 7 OUT bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0200 1x 512 bytes bInterval 32 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 7 bAlternateSetting 0 bNumEndpoints 2 bInterfaceClass 8 Mass Storage bInterfaceSubClass 6 SCSI bInterfaceProtocol 80 Bulk-Only iInterface 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x08 EP 8 OUT bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0200 1x 512 bytes bInterval 1 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x89 EP 9 IN bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0200 1x 512 bytes bInterval 1 Device Qualifier (for other device speed): bLength 10 bDescriptorType 6 bcdUSB 2.00 bDeviceClass 255 Vendor Specific Class bDeviceSubClass 255 Vendor Specific Subclass bDeviceProtocol 255 Vendor Specific Protocol bMaxPacketSize0 64 bNumConfigurations 1 Device Status: 0x0001 Self Powered Signed-off-by: NRicardo Ribalda Delgado <ricardo.ribalda@gmail.com> Acked-by: NDan Williams <dcbw@redhat.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Hans Wennborg 提交于
Signed-off-by: NHans Wennborg <hans@hanshq.net> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Hans Wennborg 提交于
Signed-off-by: NHans Wennborg <hans@hanshq.net> Acked-by: NChas Williams <chas@cmf.nrl.navy.mil> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 05 8月, 2014 5 次提交
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由 Simon Wunderlich 提交于
Signed-off-by: NSimon Wunderlich <sw@simonwunderlich.de> Signed-off-by: NAntonio Quartulli <antonio@meshcoding.com>
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由 Simon Wunderlich 提交于
The default hop penalty is currently set to 15, which is applied like that for multi interface devices (e.g. dual band APs). Single band devices will still use an effective penalty of 30 (hop penalty + wifi penalty). After receiving reports of too long paths in mesh networks with dual band APs which were fixed by increasing the hop penalty, we'd like to suggest to increase that default value in the default setting as well. We've evaluated that increase in a handful of medium sized mesh networks (5-20 nodes) with single and dual band devices, with changes for the better (shorter routes, higher throughput) or no change at all. This patch changes the hop penalty to 30, which will give an effective penalty of 60 on single band devices (hop penalty + wifi penalty). Signed-off-by: NSimon Wunderlich <simon@open-mesh.com> Signed-off-by: NMarek Lindner <mareklindner@neomailbox.ch> Signed-off-by: NAntonio Quartulli <antonio@meshcoding.com>
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由 André Gaul 提交于
This patch removes unnecessary logspam which resulted from superfluous calls to net_ratelimit(). With the supplied patch, net_ratelimit() is called after the loglevel has been checked. Signed-off-by: NAndré Gaul <gaul@web-yard.de> Signed-off-by: NMarek Lindner <mareklindner@neomailbox.ch> Signed-off-by: NAntonio Quartulli <antonio@meshcoding.com>
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由 Sven Eckelmann 提交于
batadv_frag_insert_packet was unable to handle out-of-order packets because it dropped them directly. This is caused by the way the fragmentation lists is checked for the correct place to insert a fragmentation entry. The fragmentation code keeps the fragments in lists. The fragmentation entries are kept in descending order of sequence number. The list is traversed and each entry is compared with the new fragment. If the current entry has a smaller sequence number than the new fragment then the new one has to be inserted before the current entry. This ensures that the list is still in descending order. An out-of-order packet with a smaller sequence number than all entries in the list still has to be added to the end of the list. The used hlist has no information about the last entry in the list inside hlist_head and thus the last entry has to be calculated differently. Currently the code assumes that the iterator variable of hlist_for_each_entry can be used for this purpose after the hlist_for_each_entry finished. This is obviously wrong because the iterator variable is always NULL when the list was completely traversed. Instead the information about the last entry has to be stored in a different variable. This problem was introduced in 610bfc6b ("batman-adv: Receive fragmented packets and merge"). Signed-off-by: NSven Eckelmann <sven@narfation.org> Signed-off-by: NMarek Lindner <mareklindner@neomailbox.ch> Signed-off-by: NAntonio Quartulli <antonio@meshcoding.com>
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由 Eric Dumazet 提交于
With netlink_lookup() conversion to RCU, we need to use appropriate rcu dereference in netlink_seq_socket_idx() & netlink_seq_next() Reported-by: NSasha Levin <sasha.levin@oracle.com> Signed-off-by: NEric Dumazet <edumazet@google.com> Fixes: e341694e ("netlink: Convert netlink_lookup() to use RCU protected hash table") Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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