summaryrefslogtreecommitdiff
AgeCommit message (Collapse)Author
2014-04-14Revert "net: sctp: Fix a_rwnd/rwnd management to reflect real state of the ↵Daniel Borkmann
receiver's buffer" This reverts commit ef2820a735f7 ("net: sctp: Fix a_rwnd/rwnd management to reflect real state of the receiver's buffer") as it introduced a serious performance regression on SCTP over IPv4 and IPv6, though a not as dramatic on the latter. Measurements are on 10Gbit/s with ixgbe NICs. Current state: [root@Lab200slot2 ~]# iperf3 --sctp -4 -c 192.168.241.3 -V -l 1452 -t 60 iperf version 3.0.1 (10 January 2014) Linux Lab200slot2 3.14.0 #1 SMP Thu Apr 3 23:18:29 EDT 2014 x86_64 Time: Fri, 11 Apr 2014 17:56:21 GMT Connecting to host 192.168.241.3, port 5201 Cookie: Lab200slot2.1397238981.812898.548918 [ 4] local 192.168.241.2 port 38616 connected to 192.168.241.3 port 5201 Starting Test: protocol: SCTP, 1 streams, 1452 byte blocks, omitting 0 seconds, 60 second test [ ID] Interval Transfer Bandwidth [ 4] 0.00-1.09 sec 20.8 MBytes 161 Mbits/sec [ 4] 1.09-2.13 sec 10.8 MBytes 86.8 Mbits/sec [ 4] 2.13-3.15 sec 3.57 MBytes 29.5 Mbits/sec [ 4] 3.15-4.16 sec 4.33 MBytes 35.7 Mbits/sec [ 4] 4.16-6.21 sec 10.4 MBytes 42.7 Mbits/sec [ 4] 6.21-6.21 sec 0.00 Bytes 0.00 bits/sec [ 4] 6.21-7.35 sec 34.6 MBytes 253 Mbits/sec [ 4] 7.35-11.45 sec 22.0 MBytes 45.0 Mbits/sec [ 4] 11.45-11.45 sec 0.00 Bytes 0.00 bits/sec [ 4] 11.45-11.45 sec 0.00 Bytes 0.00 bits/sec [ 4] 11.45-11.45 sec 0.00 Bytes 0.00 bits/sec [ 4] 11.45-12.51 sec 16.0 MBytes 126 Mbits/sec [ 4] 12.51-13.59 sec 20.3 MBytes 158 Mbits/sec [ 4] 13.59-14.65 sec 13.4 MBytes 107 Mbits/sec [ 4] 14.65-16.79 sec 33.3 MBytes 130 Mbits/sec [ 4] 16.79-16.79 sec 0.00 Bytes 0.00 bits/sec [ 4] 16.79-17.82 sec 5.94 MBytes 48.7 Mbits/sec (etc) [root@Lab200slot2 ~]# iperf3 --sctp -6 -c 2001:db8:0:f101::1 -V -l 1400 -t 60 iperf version 3.0.1 (10 January 2014) Linux Lab200slot2 3.14.0 #1 SMP Thu Apr 3 23:18:29 EDT 2014 x86_64 Time: Fri, 11 Apr 2014 19:08:41 GMT Connecting to host 2001:db8:0:f101::1, port 5201 Cookie: Lab200slot2.1397243321.714295.2b3f7c [ 4] local 2001:db8:0:f101::2 port 55804 connected to 2001:db8:0:f101::1 port 5201 Starting Test: protocol: SCTP, 1 streams, 1400 byte blocks, omitting 0 seconds, 60 second test [ ID] Interval Transfer Bandwidth [ 4] 0.00-1.00 sec 169 MBytes 1.42 Gbits/sec [ 4] 1.00-2.00 sec 201 MBytes 1.69 Gbits/sec [ 4] 2.00-3.00 sec 188 MBytes 1.58 Gbits/sec [ 4] 3.00-4.00 sec 174 MBytes 1.46 Gbits/sec [ 4] 4.00-5.00 sec 165 MBytes 1.39 Gbits/sec [ 4] 5.00-6.00 sec 199 MBytes 1.67 Gbits/sec [ 4] 6.00-7.00 sec 163 MBytes 1.36 Gbits/sec [ 4] 7.00-8.00 sec 174 MBytes 1.46 Gbits/sec [ 4] 8.00-9.00 sec 193 MBytes 1.62 Gbits/sec [ 4] 9.00-10.00 sec 196 MBytes 1.65 Gbits/sec [ 4] 10.00-11.00 sec 157 MBytes 1.31 Gbits/sec [ 4] 11.00-12.00 sec 175 MBytes 1.47 Gbits/sec [ 4] 12.00-13.00 sec 192 MBytes 1.61 Gbits/sec [ 4] 13.00-14.00 sec 199 MBytes 1.67 Gbits/sec (etc) After patch: [root@Lab200slot2 ~]# iperf3 --sctp -4 -c 192.168.240.3 -V -l 1452 -t 60 iperf version 3.0.1 (10 January 2014) Linux Lab200slot2 3.14.0+ #1 SMP Mon Apr 14 12:06:40 EDT 2014 x86_64 Time: Mon, 14 Apr 2014 16:40:48 GMT Connecting to host 192.168.240.3, port 5201 Cookie: Lab200slot2.1397493648.413274.65e131 [ 4] local 192.168.240.2 port 50548 connected to 192.168.240.3 port 5201 Starting Test: protocol: SCTP, 1 streams, 1452 byte blocks, omitting 0 seconds, 60 second test [ ID] Interval Transfer Bandwidth [ 4] 0.00-1.00 sec 240 MBytes 2.02 Gbits/sec [ 4] 1.00-2.00 sec 239 MBytes 2.01 Gbits/sec [ 4] 2.00-3.00 sec 240 MBytes 2.01 Gbits/sec [ 4] 3.00-4.00 sec 239 MBytes 2.00 Gbits/sec [ 4] 4.00-5.00 sec 245 MBytes 2.05 Gbits/sec [ 4] 5.00-6.00 sec 240 MBytes 2.01 Gbits/sec [ 4] 6.00-7.00 sec 240 MBytes 2.02 Gbits/sec [ 4] 7.00-8.00 sec 239 MBytes 2.01 Gbits/sec With the reverted patch applied, the SCTP/IPv4 performance is back to normal on latest upstream for IPv4 and IPv6 and has same throughput as 3.4.2 test kernel, steady and interval reports are smooth again. Fixes: ef2820a735f7 ("net: sctp: Fix a_rwnd/rwnd management to reflect real state of the receiver's buffer") Reported-by: Peter Butler <pbutler@sonusnet.com> Reported-by: Dongsheng Song <dongsheng.song@gmail.com> Reported-by: Fengguang Wu <fengguang.wu@intel.com> Tested-by: Peter Butler <pbutler@sonusnet.com> Signed-off-by: Daniel Borkmann <dborkman@redhat.com> Cc: Matija Glavinic Pecotic <matija.glavinic-pecotic.ext@nsn.com> Cc: Alexander Sverdlin <alexander.sverdlin@nsn.com> Cc: Vlad Yasevich <vyasevich@gmail.com> Acked-by: Vlad Yasevich <vyasevich@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-04-14cxgb4: Save the correct mac addr for hw-loopback connections in the L2TSteve Wise
Hardware needs the local device mac address to support hw loopback for rdma loopback connections. Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-04-14net: filter: seccomp: fix wrong decoding of BPF_S_ANC_SECCOMP_LD_WDaniel Borkmann
While reviewing seccomp code, we found that BPF_S_ANC_SECCOMP_LD_W has been wrongly decoded by commit a8fc927780 ("sk-filter: Add ability to get socket filter program (v2)") into the opcode BPF_LD|BPF_B|BPF_ABS although it should have been decoded as BPF_LD|BPF_W|BPF_ABS. In practice, this should not have much side-effect though, as such conversion is/was being done through prctl(2) PR_SET_SECCOMP. Reverse operation PR_GET_SECCOMP will only return the current seccomp mode, but not the filter itself. Since the transition to the new BPF infrastructure, it's also not used anymore, so we can simply remove this as it's unreachable. Fixes: a8fc927780 ("sk-filter: Add ability to get socket filter program (v2)") Signed-off-by: Daniel Borkmann <dborkman@redhat.com> Signed-off-by: Alexei Starovoitov <ast@plumgrid.com> Cc: Pavel Emelyanov <xemul@parallels.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-04-14seccomp: fix populating a0-a5 syscall args in 32-bit x86 BPFDaniel Borkmann
Linus reports that on 32-bit x86 Chromium throws the following seccomp resp. audit log messages: audit: type=1326 audit(1397359304.356:28108): auid=500 uid=500 gid=500 ses=2 subj=unconfined_u:unconfined_r:chrome_sandbox_t:s0-s0:c0.c1023 pid=3677 comm="chrome" exe="/opt/google/chrome/chrome" sig=0 syscall=172 compat=0 ip=0xb2dd9852 code=0x30000 audit: type=1326 audit(1397359304.356:28109): auid=500 uid=500 gid=500 ses=2 subj=unconfined_u:unconfined_r:chrome_sandbox_t:s0-s0:c0.c1023 pid=3677 comm="chrome" exe="/opt/google/chrome/chrome" sig=0 syscall=5 compat=0 ip=0xb2dd9852 code=0x50000 These audit messages are being triggered via audit_seccomp() through __secure_computing() in seccomp mode (BPF) filter with seccomp return codes 0x30000 (== SECCOMP_RET_TRAP) and 0x50000 (== SECCOMP_RET_ERRNO) during filter runtime. Moreover, Linus reports that x86_64 Chromium seems fine. The underlying issue that explains this is that the implementation of populate_seccomp_data() is wrong. Our seccomp data structure sd that is being shared with user ABI is: struct seccomp_data { int nr; __u32 arch; __u64 instruction_pointer; __u64 args[6]; }; Therefore, a simple cast to 'unsigned long *' for storing the value of the syscall argument via syscall_get_arguments() is just wrong as on 32-bit x86 (or any other 32bit arch), it would result in storing a0-a5 at wrong offsets in args[] member, and thus i) could leak stack memory to user space and ii) tampers with the logic of seccomp BPF programs that read out and check for syscall arguments: syscall_get_arguments(task, regs, 0, 1, (unsigned long *) &sd->args[0]); Tested on 32-bit x86 with Google Chrome, unfortunately only via remote test machine through slow ssh X forwarding, but it fixes the issue on my side. So fix it up by storing args in type correct variables, gcc is clever and optimizes the copy away in other cases, e.g. x86_64. Fixes: bd4cf0ed331a ("net: filter: rework/optimize internal BPF interpreter's instruction set") Reported-and-bisected-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Daniel Borkmann <dborkman@redhat.com> Signed-off-by: Alexei Starovoitov <ast@plumgrid.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Eric Paris <eparis@redhat.com> Cc: James Morris <james.l.morris@oracle.com> Cc: Kees Cook <keescook@chromium.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-04-14wl18xx: align event mailbox with current fwEliad Peller
Some fields are missing from the event mailbox struct definitions, which cause issues when trying to handle some events. Add the missing fields in order to align the struct size (without adding actual support for the new fields). Reported-and-tested-by: Imre Kaloz <kaloz@openwrt.org> Cc: stable@vger.kernel.org # 3.14+ Fixes: 028e724 ("wl18xx: move to new firmware (wl18xx-fw-3.bin)") Signed-off-by: Eliad Peller <eliad@wizery.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-04-14rsi: Fix a potential memory leak in rsi_send_auto_rate_request()Christian Engelmayer
Fix a potential memory leak in the error path of function rsi_send_auto_rate_request(). In case memory allocation for array 'selected_rates' fails, the error path exits and leaves the previously allocated skb in place. Detected by Coverity: CID 1195575. Signed-off-by: Christian Engelmayer <cengelma@gmx.at> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-04-14cw1200: Fix cw1200_debug_link_idFrederic Danis
This array is used in debug string to display cw1200_link_status defined in drivers/net/wireless/cw1200/cw1200.h. Add missing strings for CW1200_LINK_RESET and CW1200_LINK_RESET_REMAP. Signed-off-by: Frederic Danis <frederic.danis@linux.intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-04-14wlcore: ignore dummy packet events in PLT modeLuciano Coelho
Sometimes the firmware sends a dummy packet event while we are in PLT mode. This doesn't make sense, it's a firmware bug. Fix this by ignoring dummy packet events when we're PLT mode. Reported-by: Yegor Yefremov <yegorslists@googlemail.com> Reported-by: Arik Nemtsov <arik@wizery.com> Signed-off-by: Luciano Coelho <luca@coelho.fi> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-04-14rsi: Fix a potential memory leak in rsi_set_channel()Christian Engelmayer
Fix a potential memory leak in function rsi_set_channel() that is used to program channel changes. The channel check block for the frequency bands directly exits the function in case of an error, thus leaving an already allocated skb unreferenced. Move the checks above allocating the skb. Detected by Coverity: CID 1195576. Signed-off-by: Christian Engelmayer <cengelma@gmx.at> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-04-14rsi: Add missing initialization of iiGeert Uytterhoeven
drivers/net/wireless/rsi/rsi_91x_core.c: In function ‘rsi_core_determine_hal_queue’: drivers/net/wireless/rsi/rsi_91x_core.c:91: warning: ‘ii’ may be used uninitialized in this function Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-04-14Merge branch 'for-john' of ↵John W. Linville
git://git.kernel.org/pub/scm/linux/kernel/git/iwlwifi/iwlwifi-fixes
2014-04-14Merge branch 'for-john' of ↵John W. Linville
git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211
2014-04-14Merge branch 'qlcnic'David S. Miller
Shahed Shaikh says: ==================== qlcnic: Bug fixes This patch series contains following bug fixes - * Send INIT_NIC_FUNC mailbox command as first mailbox * Fix a panic because of uninitialized delayed_work. * Fix inconsistent calculation of max rings count. * Fix PVID configuration issue. Driver needs to clear older PVID before adding new one. * Fix QLogic application/driver interface by packing vNIC information array. * Fix a crash when user tries to disable SR-IOV while VFs are still assigned to VMs. Please apply to net. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2014-04-14qlcnic: Do not disable SR-IOV when VFs are assigned to VMsManish Chopra
o While disabling SR-IOV when VFs are assigned to VMs causes host crash so return -EPERM when user request to disable SR-IOV using pci sysfs in case of VFs are assigned to VMs. Signed-off-by: Manish Chopra <manish.chopra@qlogic.com> Signed-off-by: Shahed Shaikh <shahed.shaikh@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-04-14qlcnic: Fix QLogic application/driver interface for virtual NIC configurationJitendra Kalsaria
o Application expect vNIC number as the array index but driver interface return configuration in array index form. o Pack the vNIC information array in the buffer such that application can access it using vNIC number as the array index. Signed-off-by: Jitendra Kalsaria <jitendra.kalsaria@qlogic.com> Signed-off-by: Shahed Shaikh <shahed.shaikh@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-04-14qlcnic: Fix PVID configuration on eSwitch port.Jitendra Kalsaria
Clear older PVID before adding a newer PVID to the eSwicth port Signed-off-by: Jitendra Kalsaria <jitendra.kalsaria@qlogic.com> Signed-off-by: Shahed Shaikh <shahed.shaikh@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-04-14qlcnic: Fix max ring count calculationShahed Shaikh
Do not read max rings count from qlcnic_get_nic_info(). Use driver defined values for 82xx adapters. In case of 83xx adapters, use minimum of firmware provided and driver defined values. Signed-off-by: Shahed Shaikh <shahed.shaikh@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-04-14qlcnic: Fix to send INIT_NIC_FUNC as first mailbox.Sucheta Chakraborty
o INIT_NIC_FUNC should be first mailbox sent. Sending DCB capability and parameter query commands after that command. Signed-off-by: Sucheta Chakraborty <sucheta.chakraborty@qlogic.com> Signed-off-by: Shahed Shaikh <shahed.shaikh@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-04-14qlcnic: Fix panic due to uninitialzed delayed_work struct in use.Sucheta Chakraborty
o AEN event was being received before initializing delayed_work struct and handlers for it. This was resulting in crash. This patch fixes it. Signed-off-by: Sucheta Chakraborty <sucheta.chakraborty@qlogic.com> Signed-off-by: Shahed Shaikh <shahed.shaikh@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-04-14Merge branch 'be2net'David S. Miller
Sathya Perla says: ==================== be2net: patch set Patch 1/2 is a v2 of a patch that was submitted earlier (as a part of a different patch-set). v2 incorporates a suggestion given by David Laight for how long to poll for pending TX completions while disabling a device. Patch 2/2 fixes a crash in be_remove()->be_close() path after be2net has aborted an EEH error recovery due to a permanant failure. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2014-04-14be2net: Fix invocation of be_close() after be_clear()Kalesh AP
In the EEH error recovery path, when a permanent failure occurs, we clean up adapter structure (i.e. destroy queues etc) by calling be_clear() and return PCI_ERS_RESULT_DISCONNECT. After this the stack tries to remove device from bus and calls be_remove() which invokes netdev_unregister()->be_close(). be_close() operating on destroyed queues results in a NULL dereference. This patch fixes this problem by introducing a flag to keep track of the setup state. Signed-off-by: Kalesh AP <kalesh.purayil@emulex.com> Signed-off-by: Sathya Perla <sathya.perla@emulex.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-04-14be2net: Fix to reap TX compls till HW doesn't respond for some timeVasundhara Volam
be_close() currently waits for a max of 200ms to receive all pending TX compls. This timeout value was roughly calculated based on 10G transmission speeds and the TX queue depth. This timeout may not be enough when the link is operating at lower speeds or in multi-channel/SR-IOV configs with TX-rate limiting setting. It is hard to calculate a "proper timeout value" that works in all configurations. This patch solves this problem by continuing to reap TX completions till the HW is completely silent for a period of 10ms or a HW error is detected. v2: implements the new scheme (as suggested by David Laight) instead of just waiting longer than 200ms for reaping all completions. Signed-off-by: Vasundhara Volam <vasundhara.volam@emulex.com> Signed-off-by: Sathya Perla <sathya.perla@emulex.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-04-14DT: add vendor prefix for EBV ElektronikSteffen Trumtrar
Add vendor prefix for EBV Elektronik. Signed-off-by: Steffen Trumtrar <s.trumtrar@pengutronix.de> Signed-off-by: Rob Herring <robh@kernel.org>
2014-04-14of: Fix the section mismatch warnings.Xiubo Li
In tag next-20140407, building with CONFIG_DEBUG_SECTION_MISMATCH enabled, the following WARNING is occured: WARNING: drivers/built-in.o(.text.unlikely+0x2220): Section mismatch in reference from the function __reserved_mem_check_root() to the function .init.text:of_get_flat_dt_prop() The function __reserved_mem_check_root() references the function __init of_get_flat_dt_prop(). This is often because __reserved_mem_check_root lacks a __init annotation or the annotation of of_get_flat_dt_prop is wrong. WARNING: vmlinux.o(.text.unlikely+0xb9d0): Section mismatch in reference from the function __reserved_mem_check_root() to the (unknown reference) .init.data:(unknown) The function __reserved_mem_check_root() references the (unknown reference) __initdata (unknown). This is often because __reserved_mem_check_root lacks a __initdata annotation or the annotation of (unknown) is wrong. This is cause by : 'drivers: of: add initialization code for dynamic reserved memory'. Signed-off-by: Xiubo Li <Li.Xiubo@freescale.com> Signed-off-by: Rob Herring <robh@kernel.org>
2014-04-14of: Add vendor prefix for Digi International Inc.Alexander Shiyan
Using "digi" for Digi International Inc. Additionally, this patch keep "dlink" entry sorted alphabetically. Signed-off-by: Alexander Shiyan <shc_work@mail.ru> Signed-off-by: Rob Herring <robh@kernel.org>
2014-04-14DT: I2C: Add trivial bindings used by kirkwood boardsAndrew Lunn
Add a number of eeproms and temperature sensors/fan controllers used by kirkwood boards. Signed-off-by: Andrew Lunn <andrew@lunn.ch> Acked-by: Jason Cooper <jason@lakedaemon.net> Signed-off-by: Rob Herring <robh@kernel.org>
2014-04-14DT: Vendor: Add prefixes used by Kirkwood devicesAndrew Lunn
Add a number of vendor prefixes by kirkwood devices. These are not all stock tickers, but have been in use for a while so changing would not be easy. Signed-off-by: Andrew Lunn <andrew@lunn.ch> Acked-by: Jason Cooper <jason@lakedaemon.net> Signed-off-by: Rob Herring <robh@kernel.org>
2014-04-14net/mlx4_core: Defer VF initialization till PF is fully initializedAmir Vadai
Fix in commit [1] is not sufficient since a deferred VF initialization could happen after pci_enable_sriov() is finished, but before the PF is fully initialized. Need to prevent VFs from initializing till the PF is fully ready and comm channel is operational. [1] - 9798935 "net/mlx4_core: mlx4_init_slave() shouldn't access comm channel before PF is ready" CC: Stuart Hayes <Stuart_Hayes@Dell.com> Signed-off-by: Amir Vadai <amirv@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-04-14DT: bindings: add missing Marvell Kirkwood SoC documentationAndrew Lunn
Marvell Kirkwood SoC binding have not yet been documented. Add the documentation including the supported SoCs and boards. Signed-off-by: Andrew Lunn <andrew@lunn.ch> Acked-by: Jason Cooper <jason@lakedaemon.net> Signed-off-by: Rob Herring <robh@kernel.org>
2014-04-14dt-bindings: add vendor-prefix for Newhaven DisplayDinh Nguyen
Newhaven Display provides the worldwide marketplace with cost effective high quality display devices ranging from OLED and LCD Displays to VFD Displays. Signed-off-by: Dinh Nguyen <dinguyen@altera.com> Reviewed-by: Pavel Machek <pavel@denx.de> Signed-off-by: Rob Herring <robh@kernel.org>
2014-04-14of: add vendor prefix for I2SE GmbHStefan Wahren
Add i2se to the list of DT vendor prefixes. Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com> Signed-off-by: Rob Herring <robh@kernel.org>
2014-04-14of: add vendor prefix for ISEE 2007 S.L.Javier Martinez Canillas
This trivial patch adds ISEE 2007 S.L. to the list of devicetree vendor prefixes. Acked-by: Kumar Gala <galak@codeaurora.org> Signed-off-by: Javier Martinez Canillas <javier@dowhile0.org> Signed-off-by: Rob Herring <robh@kernel.org>
2014-04-14bnx2: Don't build unused suspend/resume functions not enabledDaniel J Blueman
When CONFIG_PM_SLEEP isn't enabled, bnx2_suspend/resume are unused; don't build them when they aren't used. Signed-off-by: Daniel J Blueman <daniel@quora.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-04-14ipv6: Limit mtu to 65575 bytesEric Dumazet
Francois reported that setting big mtu on loopback device could prevent tcp sessions making progress. We do not support (yet ?) IPv6 Jumbograms and cook corrupted packets. We must limit the IPv6 MTU to (65535 + 40) bytes in theory. Tested: ifconfig lo mtu 70000 netperf -H ::1 Before patch : Throughput : 0.05 Mbits After patch : Throughput : 35484 Mbits Reported-by: Francois WELLENREITER <f.wellenreiter@gmail.com> Signed-off-by: Eric Dumazet <edumazet@google.com> Acked-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-04-14Merge branch 'perf-core-for-mingo' into perf/urgentIngo Molnar
Conflicts: tools/perf/bench/numa.c Pull perf fixes from Jiri Olsa. Signed-off-by: Ingo Molnar <mingo@kernel.org>
2014-04-14Merge tag 'v3.15-rc1' into perf/urgentIngo Molnar
Pick up the latest fixes. Signed-off-by: Ingo Molnar <mingo@kernel.org>
2014-04-14OMAPDSS: Change struct reg_field to dispc_reg_fieldJyri Sarha
Avoid colision with regmap's struct reg_field definition by renaming omapdss's struct reg_field to dispc_reg_field, and moving it inside dispc.c as that's the only place it is used. Signed-off-by: Jyri Sarha <jsarha@ti.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2014-04-14OMAPDSS: Take pixelclock unit change into account in hdmi_compute_acr()Jyri Sarha
Pixelclock unit change from kHz to Hz should be taken into account in CTS value calculations in hdmi_compute_acr(). Signed-off-by: Jyri Sarha <jsarha@ti.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2014-04-14ALSA: es18xx driver should use udelay errorLi, Zhen-Hua
udelay with more than 20000 may cause __bad_udelay. Use mdelay for instead. [fixed a typo spotted by Clemens -- tiwai] Signed-off-by: Li, Zhen-Hua <zhen-hual@hp.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-04-14OMAPDSS: fix shared irq handlersTomi Valkeinen
DSS uses shared irq handlers for DISPC and DSI, because on OMAP3, the DISPC and DSI share the same irq line. However, the irq handlers presume that the hardware is enabled, which, in theory, may not be the case with shared irq handlers. So if an interrupt happens while the DISPC/DSI is off, the kernel will halt as the irq handler tries to access the DISPC/DSI registers. In practice that should never happen, as both DSI and DISPC are in the same power domain. So if there's an IRQ for one of them, the other is also enabled. However, if CONFIG_DEBUG_SHIRQ is enabled, the kernel will generate a spurious IRQ, which then causes the problem. This patch adds an is_enabled field for both DISPC and DSI, which is used to track if the HW is enabled. For DISPC the code is slightly more complex, as the users of DISPC can register the interrupt handler, and we want to hide the is_enabled handling from the users of DISPC. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2014-04-14video: imxfb: Select LCD_CLASS_DEVICE unconditionallyAlexander Shiyan
FB driver uses lowlevel controls for LCD powering and contrast changing. Since LCD class cannot be used as an optional feature and should be compiled for using in the driver, this patch selects LCD_CLASS_DEVICE symbol for the driver. Signed-off-by: Alexander Shiyan <shc_work@mail.ru> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2014-04-14OMAPDSS: fix rounding when calculating fclk rateTomi Valkeinen
"clk: divider: fix rate calculation for fractional rates" patch (and similar for TI specific divider) fixes the clk-divider's rounding. This patch updates the DSS driver to round the rates accordingly. This fixes the DSS's warnings about clock rate mismatch, and also fixes the wrong fclk rate being set. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Tested-by: Christoph Fritz <chf.fritz@googlemail.com> Tested-by: Marek Belisko <marek@goldelico.com>
2014-04-14video: da8xx-fb: Fix casting of info->pseudo_paletteJon Ringle
The casting to (u16 *) on info->pseudo_palette is wrong and causes the display to show a blue (garbage) vertical line on every other pixel column Signed-off-by: Jon Ringle <jringle@gridpoint.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2014-04-14Merge branch 'liblockdep-fixes' of ↵Ingo Molnar
git://git.kernel.org/pub/scm/linux/kernel/git/sashal/linux into core/urgent Pull liblockdep fixes from Sasha Levin: " 1. There was a build breakage caused by marking a function 'asmlinkage' in lockdep.h. Fix that by ignoring asmlinkage and visible annotations. 2. Josh Boyer mentioned that Fedora would like to include liblockdep as a package, so we had to fix our versioning methods from being dumb and pointless to something actually usable. So now liblockdep.so tracks the kernel version which makes lives of distro folks much easier. " Signed-off-by: Ingo Molnar <mingo@kernel.org>
2014-04-14perf stat: Initialize statistics correctlyAndi Kleen
perf stat did initialize the stats structure used to compute stddev etc. incorrectly. It merely zeroes it. But one member (min) needs to be set to a non zero value. This causes min to be not computed at all. Call init_stats() correctly. It doesn't matter for stat currently because it doesn't use min, but it's still better to do it correctly. The other users of statistics are already correct. Signed-off-by: Andi Kleen <ak@linux.intel.com> Acked-by: Namhyung Kim <namhyung@kernel.org> Link: http://lkml.kernel.org/r/1395768699-16060-1-git-send-email-andi@firstfloor.org Signed-off-by: Jiri Olsa <jolsa@redhat.com>
2014-04-14perf bench: Set more defaults in the 'numa' suiteRamkumar Ramachandra
Currently, $ perf bench numa mem errors out with usage information. To make this more user-friendly, let us provide a minimum set of default values required for a test run. As an added bonus, $ perf bench all now goes all the way to completion. Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: David Ahern <dsahern@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Link: http://lkml.kernel.org/r/1395964219-22173-2-git-send-email-artagnon@gmail.com Signed-off-by: Jiri Olsa <jolsa@redhat.com>
2014-04-14perf bench: Fix segfault at the end of an 'all' executionRamkumar Ramachandra
At the end of $ perf bench all the program segfaults because it attempts to dereference a NULL pointer. Fix this fault. Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Link: http://lkml.kernel.org/r/1395964219-22173-4-git-send-email-artagnon@gmail.com Signed-off-by: Jiri Olsa <jolsa@redhat.com>
2014-04-14perf bench: Update manpage to mention numa and futexRamkumar Ramachandra
Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Link: http://lkml.kernel.org/r/1395964219-22173-3-git-send-email-artagnon@gmail.com Signed-off-by: Jiri Olsa <jolsa@redhat.com>
2014-04-14perf probe: Use dwarf_getcfi_elf() instead of dwarf_getcfi()Namhyung Kim
The dwarf_getcfi() only checks .debug_frame section for CFI, but as most binaries only have .eh_frame it'd return NULL and it makes some variables inaccessible. Using dwarf_getcfi_elf (along with dwarf_getelf()) allows to show and add probe to more variables. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Acked-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Link: http://lkml.kernel.org/r/1396854348-9296-1-git-send-email-namhyung@kernel.org Signed-off-by: Jiri Olsa <jolsa@redhat.com>
2014-04-14perf probe: Fix to handle errors in line_range searchingMasami Hiramatsu
As Namhyung reported(https://lkml.org/lkml/2014/4/1/89), current perf-probe -L option doesn't handle errors in line-range searching correctly. It causes a SEGV if an error occured in the line-range searching. ---- $ perf probe -x ./perf -v -L map__load Open Debuginfo file: /home/namhyung/project/linux/tools/perf/perf fname: util/map.c, lineno:153 New line range: 153 to 2147483647 path: (null) Segmentation fault (core dumped) ---- This is because line_range_inline_cb() ignores errors from find_line_range_by_line() which means that lr->path is already freed on the error path in find_line_range_by_line(). As a result, get_real_path() accesses the lr->path and it causes a NULL pointer exception. This fixes line_range_inline_cb() to handle the error correctly, and report it to the caller. Anyway, this just fixes a possible SEGV bug, Namhyung's patch is also required. Reported-by: Namhyung Kim <namhyung@kernel.org> Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Acked-by: Namhyung Kim <namhyung@kernel.org> Cc: Arnaldo Carvalho de Melo <acme@kernel.org> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung.kim@lge.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/20140402054831.19080.27006.stgit@ltc230.yrl.intra.hitachi.co.jp Signed-off-by: Jiri Olsa <jolsa@redhat.com>
generated by cgit (git 2.34.1) at 2025-09-22 11:20:42 +0000