- 07 12月, 2013 19 次提交
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由 Eric Dumazet 提交于
With the introduction of TCP Small Queues, TSO auto sizing, and TCP pacing, we can implement Automatic Corking in the kernel, to help applications doing small write()/sendmsg() to TCP sockets. Idea is to change tcp_push() to check if the current skb payload is under skb optimal size (a multiple of MSS bytes) If under 'size_goal', and at least one packet is still in Qdisc or NIC TX queues, set the TCP Small Queue Throttled bit, so that the push will be delayed up to TX completion time. This delay might allow the application to coalesce more bytes in the skb in following write()/sendmsg()/sendfile() system calls. The exact duration of the delay is depending on the dynamics of the system, and might be zero if no packet for this flow is actually held in Qdisc or NIC TX ring. Using FQ/pacing is a way to increase the probability of autocorking being triggered. Add a new sysctl (/proc/sys/net/ipv4/tcp_autocorking) to control this feature and default it to 1 (enabled) Add a new SNMP counter : nstat -a | grep TcpExtTCPAutoCorking This counter is incremented every time we detected skb was under used and its flush was deferred. Tested: Interesting effects when using line buffered commands under ssh. Excellent performance results in term of cpu usage and total throughput. lpq83:~# echo 1 >/proc/sys/net/ipv4/tcp_autocorking lpq83:~# perf stat ./super_netperf 4 -t TCP_STREAM -H lpq84 -- -m 128 9410.39 Performance counter stats for './super_netperf 4 -t TCP_STREAM -H lpq84 -- -m 128': 35209.439626 task-clock # 2.901 CPUs utilized 2,294 context-switches # 0.065 K/sec 101 CPU-migrations # 0.003 K/sec 4,079 page-faults # 0.116 K/sec 97,923,241,298 cycles # 2.781 GHz [83.31%] 51,832,908,236 stalled-cycles-frontend # 52.93% frontend cycles idle [83.30%] 25,697,986,603 stalled-cycles-backend # 26.24% backend cycles idle [66.70%] 102,225,978,536 instructions # 1.04 insns per cycle # 0.51 stalled cycles per insn [83.38%] 18,657,696,819 branches # 529.906 M/sec [83.29%] 91,679,646 branch-misses # 0.49% of all branches [83.40%] 12.136204899 seconds time elapsed lpq83:~# echo 0 >/proc/sys/net/ipv4/tcp_autocorking lpq83:~# perf stat ./super_netperf 4 -t TCP_STREAM -H lpq84 -- -m 128 6624.89 Performance counter stats for './super_netperf 4 -t TCP_STREAM -H lpq84 -- -m 128': 40045.864494 task-clock # 3.301 CPUs utilized 171 context-switches # 0.004 K/sec 53 CPU-migrations # 0.001 K/sec 4,080 page-faults # 0.102 K/sec 111,340,458,645 cycles # 2.780 GHz [83.34%] 61,778,039,277 stalled-cycles-frontend # 55.49% frontend cycles idle [83.31%] 29,295,522,759 stalled-cycles-backend # 26.31% backend cycles idle [66.67%] 108,654,349,355 instructions # 0.98 insns per cycle # 0.57 stalled cycles per insn [83.34%] 19,552,170,748 branches # 488.244 M/sec [83.34%] 157,875,417 branch-misses # 0.81% of all branches [83.34%] 12.130267788 seconds time elapsed Signed-off-by: NEric Dumazet <edumazet@google.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Yijing Wang 提交于
Use PCI standard macro dev_is_pci() instead of hardcoding. Signed-off-by: NYijing Wang <wangyijing@huawei.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Yijing Wang 提交于
Replace local macro DFX_BUS_PCI() with PCI standard macro dev_is_pci(). Acked-by: NMaciej W. Rozycki <macro@linux-mips.org> Signed-off-by: NYijing Wang <wangyijing@huawei.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Eric Dumazet 提交于
Compiler doesn't know skb_shinfo(skb) pointer is usually constant. By using a temporary variable, we help generating smaller code. For example, tcp_init_nondata_skb() is inlined after this patch. Signed-off-by: NEric Dumazet <edumazet@google.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Eric Dumazet 提交于
Remove one useless conditional branch : napi->skb is NULL, so nothing bad can happen. Signed-off-by: NEric Dumazet <edumazet@google.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Eric Dumazet 提交于
ip6_forward() runs from softirq context, we can use the SNMP macros assuming this. Use same indentation for all IP6_INC_STATS_BH() calls. Signed-off-by: NEric Dumazet <edumazet@google.com> Acked-by: NHannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Duan Jiong 提交于
Signed-off-by: NDuan Jiong <duanj.fnst@cn.fujitsu.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 stephen hemminger 提交于
Fix spelling errors in tun driver. Signed-off-by: NStephen Hemminger <stephen@networkplumber.org> Acked-by: NJason Wang <jasowang@redhat.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Jeff Kirsher 提交于
Several files refer to an old address for the Free Software Foundation in the file header comment. Resolve by replacing the address with the URL <http://www.gnu.org/licenses/> so that we do not have to keep updating the header comments anytime the address changes. CC: John Fastabend <john.r.fastabend@intel.com> CC: Alex Duyck <alexander.h.duyck@intel.com> CC: Marcel Holtmann <marcel@holtmann.org> CC: Gustavo Padovan <gustavo@padovan.org> CC: Johan Hedberg <johan.hedberg@gmail.com> CC: Jamal Hadi Salim <jhs@mojatatu.com> Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Jeff Kirsher 提交于
Several files refer to an old address for the Free Software Foundation in the file header comment. Resolve by replacing the address with the URL <http://www.gnu.org/licenses/> so that we do not have to keep updating the header comments anytime the address changes. CC: Samuel Ortiz <samuel@sortiz.org> Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Jeff Kirsher 提交于
Several files refer to an old address for the Free Software Foundation in the file header comment. Resolve by replacing the address with the URL <http://www.gnu.org/licenses/> so that we do not have to keep updating the header comments anytime the address changes. CC: netfilter@vger.kernel.org CC: Pablo Neira Ayuso <pablo@netfilter.org> CC: Patrick McHardy <kaber@trash.net> CC: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu> Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Jeff Kirsher 提交于
Several files refer to an old address for the Free Software Foundation in the file header comment. Resolve by replacing the address with the URL <http://www.gnu.org/licenses/> so that we do not have to keep updating the header comments anytime the address changes. CC: Paul Moore <paul@paul-moore.com> Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Jeff Kirsher 提交于
Several files refer to an old address for the Free Software Foundation in the file header comment. Resolve by replacing the address with the URL <http://www.gnu.org/licenses/> so that we do not have to keep updating the header comments anytime the address changes. Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Jeff Kirsher 提交于
Several files refer to an old address for the Free Software Foundation in the file header comment. Resolve by replacing the address with the URL <http://www.gnu.org/licenses/> so that we do not have to keep updating the header comments anytime the address changes. CC: Alexey Kuznetsov <kuznet@ms2.inr.ac.ru> CC: James Morris <jmorris@namei.org> CC: Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org> CC: Patrick McHardy <kaber@trash.net> Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Jeff Kirsher 提交于
Several files refer to an old address for the Free Software Foundation in the file header comment. Resolve by replacing the address with the URL <http://www.gnu.org/licenses/> so that we do not have to keep updating the header comments anytime the address changes. CC: Vlad Yasevich <vyasevich@gmail.com> CC: Neil Horman <nhorman@tuxdriver.com> Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Jeff Kirsher 提交于
Several files refer to an old address for the Free Software Foundation in the file header comment. Resolve by replacing the address with the URL <http://www.gnu.org/licenses/> so that we do not have to keep updating the header comments anytime the address changes. CC: Jay Vosburgh <fubar@us.ibm.com> CC: Veaceslav Falico <vfalico@redhat.com> CC: Andy Gospodarek <andy@greyhouse.net> CC: Haiyang Zhang <haiyangz@microsoft.com> CC: "K. Y. Srinivasan" <kys@microsoft.com> CC: Paul Mackerras <paulus@samba.org> CC: Ian Campbell <ian.campbell@citrix.com> CC: Wei Liu <wei.liu2@citrix.com> CC: Rusty Russell <rusty@rustcorp.com.au> CC: "Michael S. Tsirkin" <mst@redhat.com> Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com> Acked-by: NWei Liu <wei.liu2@citrix.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Jeff Kirsher 提交于
Several files refer to an old address for the Free Software Foundation in the file header comment. Resolve by replacing the address with the URL <http://www.gnu.org/licenses/> so that we do not have to keep updating the header comments anytime the address changes. CC: Oliver Neukum <oliver@neukum.org> CC: Steve Glendinning <steve.glendinning@shawell.net> CC: Oliver Neukum <oneukum@suse.de> Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Jeff Kirsher 提交于
Several files refer to an old address for the Free Software Foundation in the file header comment. Resolve by replacing the address with the URL <http://www.gnu.org/licenses/> so that we do not have to keep updating the header comments anytime the address changes. CC: Samuel Ortiz <samuel@sortiz.org> Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Jeff Kirsher 提交于
Several files refer to an old address for the Free Software Foundation in the file header comment. Resolve by replacing the address with the URL <http://www.gnu.org/licenses/> so that we do not have to keep updating the header comments anytime the address changes. CC: Santosh Raspatur <santosh@chelsio.com> CC: Dimitris Michailidis <dm@chelsio.com> CC: Michael Chan <mchan@broadcom.com> CC: Santiago Leon <santil@linux.vnet.ibm.com> CC: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com> CC: Olof Johansson <olof@lixom.net> CC: Manish Chopra <manish.chopra@qlogic.com> CC: Sony Chacko <sony.chacko@qlogic.com> CC: Rajesh Borundia <rajesh.borundia@qlogic.com> CC: Nicolas Pitre <nico@fluxnic.net> CC: Steve Glendinning <steve.glendinning@shawell.net> Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 06 12月, 2013 3 次提交
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由 Kevin Wallace 提交于
When running in a network namespace whose only link to the outside world is a macvlan device, not being able to create a macvtap off of it is a real pain. So modify macvtap creation to automatically forward a creation of a macvtap on a macvlan to become a creation of a macvtap on the underlying network device, just like is currently done with macvlan-on-macvlan devices. v2: Use netif_is_macvlan and macvlan_dev_real_dev helpers to make it more clear what we're doing. Signed-off-by: NKevin Wallace <kevin@pentabarf.net> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/bwh/sfc-next由 David S. Miller 提交于
Ben Hutchings says: ==================== SIOCGHWTSTAMP ioctl 1. Add the SIOCGHWTSTAMP ioctl and update the timestamping documentation. 2. Implement SIOCGHWTSTAMP in most drivers that support SIOCSHWTSTAMP. 3. Add a test program to exercise SIOC{G,S}HWTSTAMP. ==================== Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless由 David S. Miller 提交于
John W. Linville says: ==================== Please pull this batch of fixes intende for the 3.13 stream! For the mac80211 bits, Johannes says: "For now I have various fixes all over, mostly for issues introduced in relatively recent patches. There's no real pattern to it. Some of the issues like go back longer, but still seemed 3.13 material." And... "These are just two patches disabling the broken CSA code. Once this goes into your tree I'll merge it into mac80211-next and revert there (since we fixed the bugs there)." For the iwlwifi bits, Emmanuel says: "I have here a few fixes for BT Coex. One of them is a NULL pointer dereference. Another one avoids to enable a feature that can make the firmware unhappy since the firmware isn't ready for it yet. WE also avoid a WARNING that can be triggered upon association in not-so-bad cases even if the association succeeded. We add support for new NICs (not yet on the market) and bump the API so that 3.13 will be able to work with the new firmware that will be out soon hopefully. I also have a boundary check from Johannes." In addition to those... - Arend van Spriel fixes a brcmfmac problem that could use an uninitialized variable in an error path. - Borislav Petkov fixes a Kconfig-based build breakage problem for brcmsmac. - Michal Nazarewicz fixes a couple of NULL pointer dereference problems in ath9k and wcn36xx. - Sujith Manoharan fixes a couple of ath9k problems related to incorrect interpretation of EEPROM configuration data. - Ujjal Roy fixes a memory leak in mwifiex. ==================== Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 05 12月, 2013 1 次提交
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由 John W. Linville 提交于
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless into for-davem
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- 04 12月, 2013 7 次提交
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由 David S. Miller 提交于
Hariprasad Shenai says: ==================== Fixes T5 adapter init, due to incorrect FW version check This patch series fixes, Chelsio T5 adapter initialization failure due to incorrect firmware version check. This patch series modifies the firmware flashing mechanism for T4/T5 adapter. The patch series moves chip type from struct adapter to struct adapter_params. It changes the references of chip type in cxgb4 and cxgb4vf drivers such that build failure is avoided. Patch 3/3 is dependent on patch 1/3 Patch 2/3 is also dependent on patch 1/3 We would like to request this patch series to get merged via David Miller's 'net' tree. We have included all the maintainers of respective drivers. Kindly review the change and let us know in case of any review comments. ==================== Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Hariprasad Shenai 提交于
Signed-off-by: NHariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Hariprasad Shenai 提交于
Signed-off-by: NHariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Hariprasad Shenai 提交于
Signed-off-by: NHariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Wei Yang 提交于
When driver registration fails, we need to clean up the resources allocated before. mlx4_core missed destroying the workqueue allocated. This patch destroys the workqueue when registration fails. Signed-off-by: NWei Yang <weiyang@linux.vnet.ibm.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Venkat Venkatsubra 提交于
After congestion update on a local connection, when rds_ib_xmit returns less bytes than that are there in the message, rds_send_xmit calls back rds_ib_xmit with an offset that causes BUG_ON(off & RDS_FRAG_SIZE) to trigger. For a 4Kb PAGE_SIZE rds_ib_xmit returns min(8240,4096)=4096 when actually the message contains 8240 bytes. rds_send_xmit thinks there is more to send and calls rds_ib_xmit again with a data offset "off" of 4096-48(rds header) =4048 bytes thus hitting the BUG_ON(off & RDS_FRAG_SIZE) [RDS_FRAG_SIZE=4k]. The commit 6094628b "rds: prevent BUG_ON triggering on congestion map updates" introduced this regression. That change was addressing the triggering of a different BUG_ON in rds_send_xmit() on PowerPC architecture with 64Kbytes PAGE_SIZE: BUG_ON(ret != 0 && conn->c_xmit_sg == rm->data.op_nents); This was the sequence it was going through: (rds_ib_xmit) /* Do not send cong updates to IB loopback */ if (conn->c_loopback && rm->m_inc.i_hdr.h_flags & RDS_FLAG_CONG_BITMAP) { rds_cong_map_updated(conn->c_fcong, ~(u64) 0); return sizeof(struct rds_header) + RDS_CONG_MAP_BYTES; } rds_ib_xmit returns 8240 rds_send_xmit: c_xmit_data_off = 0 + 8240 - 48 (rds header accounted only the first time) = 8192 c_xmit_data_off < 65536 (sg->length), so calls rds_ib_xmit again rds_ib_xmit returns 8240 rds_send_xmit: c_xmit_data_off = 8192 + 8240 = 16432, calls rds_ib_xmit again and so on (c_xmit_data_off 24672,32912,41152,49392,57632) rds_ib_xmit returns 8240 On this iteration this sequence causes the BUG_ON in rds_send_xmit: while (ret) { tmp = min_t(int, ret, sg->length - conn->c_xmit_data_off); [tmp = 65536 - 57632 = 7904] conn->c_xmit_data_off += tmp; [c_xmit_data_off = 57632 + 7904 = 65536] ret -= tmp; [ret = 8240 - 7904 = 336] if (conn->c_xmit_data_off == sg->length) { conn->c_xmit_data_off = 0; sg++; conn->c_xmit_sg++; BUG_ON(ret != 0 && conn->c_xmit_sg == rm->data.op_nents); [c_xmit_sg = 1, rm->data.op_nents = 1] What the current fix does: Since the congestion update over loopback is not actually transmitted as a message, all that rds_ib_xmit needs to do is let the caller think the full message has been transmitted and not return partial bytes. It will return 8240 (RDS_CONG_MAP_BYTES+48) when PAGE_SIZE is 4Kb. And 64Kb+48 when page size is 64Kb. Reported-by: NJosh Hunt <joshhunt00@gmail.com> Tested-by: NHonggang Li <honli@redhat.com> Acked-by: NBang Nguyen <bang.nguyen@oracle.com> Signed-off-by: NVenkat Venkatsubra <venkat.x.venkatsubra@oracle.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Paul Durrant 提交于
xenvif_start_xmit() relies on checking vif->task for NULL to determine whether the vif is ready to accept packets. The task thread is stopped in xenvif_disconnect() but task is not set to NULL. Thus, on a re-connect the check will give a false positive. Also since commit ea732dff (Handle backend state transitions in a more robust way) it should not be possible for xenvif_connect() to be called if the vif is already connected so change the check of vif->tx_irq to a BUG_ON() and also add a BUG_ON(vif->task). Signed-off-by: NPaul Durrant <paul.durrant@citrix.com> Cc: Wei Liu <wei.liu2@citrix.com> Cc: Ian Campbell <ian.campbell@citrix.com> Cc: David Vrabel <david.vrabel@citrix.com> Acked-by: NWei Liu <wei.liu2@citrix.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 03 12月, 2013 10 次提交
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由 David S. Miller 提交于
This reverts commit 018c5bba. It causes regressions for people using chips driven by the sungem driver. Suspicion is that the skb->csum value isn't being adjusted properly. The change also has a bug in that if __pskb_trim() fails, we'll leave a corruped skb->csum value in there. We would really need to revert it to it's original value in that case. Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Eric Dumazet 提交于
Few network drivers really supports frag_list : virtual drivers. Some drivers wrongly advertise NETIF_F_FRAGLIST feature. If skb with a frag_list is given to them, packet on the wire will be corrupt. Remove this flag, as core networking stack will make sure to provide packets that can be sent without corruption. Signed-off-by: NEric Dumazet <edumazet@google.com> Cc: Thadeu Lima de Souza Cascardo <cascardo@linux.vnet.ibm.com> Cc: Anirudha Sarangi <anirudh@xilinx.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Kamala R 提交于
The behaviour of blackhole and prohibit routes has been corrected by setting the input and output pointers of the dst variable appropriately. For blackhole routes, they are set to dst_discard and to ip6_pkt_discard and ip6_pkt_discard_out respectively for prohibit routes. ipv6: ip6_pkt_prohibit(_out) should not depend on CONFIG_IPV6_MULTIPLE_TABLES We need ip6_pkt_prohibit(_out) available without CONFIG_IPV6_MULTIPLE_TABLES Signed-off-by: NKamala R <kamala@aristanetworks.com> Acked-by: NHannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 François-Xavier Le Bail 提交于
Signed-off-by: NFrancois-Xavier Le Bail <fx.lebail@yahoo.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Sebastian Siewior 提交于
On tx submit the driver always dma_map_single() FEC_ENET_TX_FRSIZE (=2048) bytes. This works because we don't overwrite any memory after the data buffer, we remove it from cache if it was there. So we hurt performace in case the mapping of a smaller area makes a difference. There is also a bug: If the data area starts shortly before the end of RAM say 0xc7fffa10 and the RAM ends at 0xc8000000 then we have enough space to fit the data area (according to skb->len) but we would map beyond end of ram if we are using 2048. In v2.6.31 (against which kernel this patch made) there is the following check in dma_cache_maint(): |BUG_ON(!virt_addr_valid(start) || !virt_addr_valid(start + size - 1)); Since the area starting at 0xc8000000 is no longer virt_addr_valid() we BUG() during dma_map_single(). The BUG() statement was removed in v3.5-rc1 as per 2dc6a016 ("ARM: dma-mapping: use asm-generic/dma-mapping-common.h"). This patch was tested on v2.6.31 and then forward-ported and compile tested only against the net tree. I think it is still worth fixing mainline even after the BUG() statement is gone. Tested-by: NFugang Duan <B38611@freescale.com> Cc: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: NSebastian Andrzej Siewior <bigeasy@linutronix.de> Acked-by: NFugang Duan <B38611@freescale.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Mugunthan V N 提交于
When only one port of the two port is pinned out, then dt probe is failing because second port phy is not found. fixing this by checking the number of slaves and breaking the loop. Signed-off-by: NMugunthan V N <mugunthanvnm@ti.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Rafael J. Wysocki 提交于
Modify tg3_chip_reset() and tg3_close() to check if the PCI network adapter device is accessible at all in order to skip poking it or trying to handle a carrier loss in vain when that's not the case. Introduce a special PCI helper function pci_device_is_present() for this purpose. Of course, this uncovers the lack of the appropriate RTNL locking in tg3_suspend() and tg3_resume(), so add that locking in there too. These changes prevent tg3 from burning a CPU at 100% load level for solid several seconds after the Thunderbolt link is disconnected from a Matrox DS1 docking station. Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com> Acked-by: NMichael Chan <mchan@broadcom.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Duan Jiong 提交于
when dealing with a RA message, if accept_ra_defrtr is false, the kernel will not add the default route, and then deal with the following route information options. Unfortunately, those options maybe contain default route, so let's judge the accept_ra_defrtr before calling rt6_route_rcv. Signed-off-by: NDuan Jiong <duanj.fnst@cn.fujitsu.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip由 Linus Torvalds 提交于
Pull irq fixes from Thomas Gleixner: - Correction of fuzzy and fragile IRQ_RETVAL macro - IRQ related resume fix affecting only XEN - ARM/GIC fix for chained GIC controllers * 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: irqchip: Gic: fix boot for chained gics irq: Enable all irqs unconditionally in irq_resume genirq: Correct fuzzy and fragile IRQ_RETVAL() definition
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