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path: root/drivers/net/ethernet
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2016-06-27Merge branch 'linux-linaro-lsk-v4.4' into linux-linaro-lsk-v4.4-rtlsk-v4.4-16.06-rtAlex Shi
2016-06-24sfc: on MC reset, clear PIO buffer linkage in TXQsEdward Cree
[ Upstream commit c0795bf64cba4d1b796fdc5b74b33772841ed1bb ] Otherwise, if we fail to allocate new PIO buffers, our TXQs will try to use the old ones, which aren't there any more. Fixes: 183233bec810 "sfc: Allocate and link PIO buffers; map them with write-combining" Signed-off-by: Edward Cree <ecree@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-06-24switchdev: pass pointer to fib_info instead of copyJiri Pirko
[ Upstream commit da4ed55165d41b1073f9a476f1c18493e9bf8c8e ] The problem is that fib_info->nh is [0] so the struct fib_info allocation size depends on number of nexthops. If we just copy fib_info, we do not copy the nexthops info and driver accesses memory which is not ours. Given the fact that fib4 does not defer operations and therefore it does not need copy, just pass the pointer down to drivers as it was done before. Fixes: 850d0cbc91 ("switchdev: remove pointers from switchdev objects") Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-05-20Merge branch 'linux-linaro-lsk-v4.4' into linux-linaro-lsk-v4.4-rtlsk-v4.4-16.05-rtAlex Shi
2016-05-18net: thunderx: avoid exposing kernel stackxypron.glpk@gmx.de
[ Upstream commit 161de2caf68c549c266e571ffba8e2163886fb10 ] Reserved fields should be set to zero to avoid exposing bits from the kernel stack. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-05-18net/mlx4_en: Fix endianness bug in IPV6 csum calculationDaniel Jurgens
[ Upstream commit 82d69203df634b4dfa765c94f60ce9482bcc44d6 ] Use htons instead of unconditionally byte swapping nexthdr. On a little endian systems shifting the byte is correct behavior, but it results in incorrect csums on big endian architectures. Fixes: f8c6455bb04b ('net/mlx4_en: Extend checksum offloading by CHECKSUM COMPLETE') Signed-off-by: Daniel Jurgens <danielj@mellanox.com> Reviewed-by: Carol Soto <clsoto@us.ibm.com> Tested-by: Carol Soto <clsoto@us.ibm.com> Signed-off-by: Tariq Toukan <tariqt@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-05-18net: fec: only clear a queue's work bit if the queue was emptiedUwe Kleine-König
[ Upstream commit 1c021bb717a70aaeaa4b25c91f43c2aeddd922de ] In the receive path a queue's work bit was cleared unconditionally even if fec_enet_rx_queue only read out a part of the available packets from the hardware. This resulted in not reading any packets in the next napi turn and so packets were delayed or lost. The obvious fix is to only clear a queue's bit when the queue was emptied. Fixes: 4d494cdc92b3 ("net: fec: change data structure to support multiqueue") Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Reviewed-by: Lucas Stach <l.stach@pengutronix.de> Tested-by: Fugang Duan <fugang.duan@nxp.com> Acked-by: Fugang Duan <fugang.duan@nxp.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-05-18net/mlx4_en: fix spurious timestamping callbacksEric Dumazet
[ Upstream commit fc96256c906362e845d848d0f6a6354450059e81 ] When multiple skb are TX-completed in a row, we might incorrectly keep a timestamp of a prior skb and cause extra work. Fixes: ec693d47010e8 ("net/mlx4_en: Add HW timestamping (TS) support") Signed-off-by: Eric Dumazet <edumazet@google.com> Cc: Willem de Bruijn <willemb@google.com> Reviewed-by: Eran Ben Elisha <eranbe@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-05-18net/mlx5e: Fix minimum MTUSaeed Mahameed
[ Upstream commit d8edd2469ace550db707798180d1c84d81f93bca ] Minimum MTU that can be set in Connectx4 device is 68. This fixes the case where a user wants to set invalid MTU, the driver will fail to satisfy this request and the interface will stay down. It is better to report an error and continue working with old mtu. Signed-off-by: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-05-18net/mlx5e: Device's mtu field is u16 and not intSaeed Mahameed
[ Upstream commit 046339eaab26804f52f6604877f5674f70815b26 ] For set/query MTU port firmware commands the MTU field is 16 bits, here I changed all the "int mtu" parameters of the functions wrapping those firmware commands to be u16. Signed-off-by: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-05-18atl2: Disable unimplemented scatter/gather featureBen Hutchings
[ Upstream commit f43bfaeddc79effbf3d0fcb53ca477cca66f3db8 ] atl2 includes NETIF_F_SG in hw_features even though it has no support for non-linear skbs. This bug was originally harmless since the driver does not claim to implement checksum offload and that used to be a requirement for SG. Now that SG and checksum offload are independent features, if you explicitly enable SG *and* use one of the rare protocols that can use SG without checkusm offload, this potentially leaks sensitive information (before you notice that it just isn't working). Therefore this obscure bug has been designated CVE-2016-2117. Reported-by: Justin Yackoski <jyackoski@crypto-nite.com> Signed-off-by: Ben Hutchings <ben@decadent.org.uk> Fixes: ec5f06156423 ("net: Kill link between CSUM and SG features.") Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-05-05Merge branch 'linux-linaro-lsk-v4.4' into linux-linaro-lsk-v4.4-rtAlex Shi
2016-05-04jme: Fix device PM wakeup API usageGuo-Fu Tseng
commit 81422e672f8181d7ad1ee6c60c723aac649f538f upstream. According to Documentation/power/devices.txt The driver should not use device_set_wakeup_enable() which is the policy for user to decide. Using device_init_wakeup() to initialize dev->power.should_wakeup and dev->power.can_wakeup on driver initialization. And use device_may_wakeup() on suspend to decide if WoL function should be enabled on NIC. Reported-by: Diego Viola <diego.viola@gmail.com> Signed-off-by: Guo-Fu Tseng <cooldavid@cooldavid.org> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-05-04jme: Do not enable NIC WoL functions on S0Guo-Fu Tseng
commit 0772a99b818079e628a1da122ac7ee023faed83e upstream. Otherwise it might be back on resume right after going to suspend in some hardware. Reported-by: Diego Viola <diego.viola@gmail.com> Signed-off-by: Guo-Fu Tseng <cooldavid@cooldavid.org> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-04-20net: bcmgenet: fix dma api length mismatchEric Dumazet
[ Upstream commit eee577232203842b4dcadb7ab477a298479633ed ] When un-mapping skb->data in __bcmgenet_tx_reclaim(), we must use the length that was used in original dma_map_single(), instead of skb->len that might be bigger (includes the frags) We simply can store skb_len into tx_cb_ptr->dma_len and use it at unmap time. Fixes: 1c1008c793fa ("net: bcmgenet: add main driver file") Signed-off-by: Eric Dumazet <edumazet@google.com> Acked-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-04-20qlge: Fix receive packets drop.Manish Chopra
[ Upstream commit 2c9a266afefe137bff06bbe0fc48b4d3b3cb348c ] When running small packets [length < 256 bytes] traffic, packets were being dropped due to invalid data in those packets which were delivered by the driver upto the stack. Using pci_dma_sync_single_for_cpu ensures copying latest and updated data into skb from the receive buffer. Signed-off-by: Sony Chacko <sony.chacko@qlogic.com> Signed-off-by: Manish Chopra <manish.chopra@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-04-20mlx4: add missing braces in verify_qp_parametersArnd Bergmann
[ Upstream commit baefd7015cdb304ce6c94f9679d0486c71954766 ] The implementation of QP paravirtualization back in linux-3.7 included some code that looks very dubious, and gcc-6 has grown smart enough to warn about it: drivers/net/ethernet/mellanox/mlx4/resource_tracker.c: In function 'verify_qp_parameters': drivers/net/ethernet/mellanox/mlx4/resource_tracker.c:3154:5: error: statement is indented as if it were guarded by... [-Werror=misleading-indentation] if (optpar & MLX4_QP_OPTPAR_ALT_ADDR_PATH) { ^~ drivers/net/ethernet/mellanox/mlx4/resource_tracker.c:3144:4: note: ...this 'if' clause, but it is not if (slave != mlx4_master_func_num(dev)) >From looking at the context, I'm reasonably sure that the indentation is correct but that it should have contained curly braces from the start, as the update_gid() function in the same patch correctly does. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Fixes: 54679e148287 ("mlx4: Implement QP paravirtualization and maintain phys_pkey_cache for smp_snoop") Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-04-20rocker: set FDB cleanup timer according to lowest ageing timeIdo Schimmel
[ Upstream commit 88de1cd457e5cb664d6d437e2ea4750d089165f5 ] In rocker, ageing time is a per-port attribute, so the next time the FDB cleanup timer fires should be set according to the lowest ageing time. This will later allow us to delete the BR_MIN_AGEING_TIME macro, which was added to guarantee minimum ageing time in the bridge layer, thereby breaking existing behavior. Signed-off-by: Ido Schimmel <idosch@mellanox.com> Acked-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-04-20mlxsw: spectrum: Check requested ageing time is validIdo Schimmel
[ Upstream commit 869f63a4d28144c03c8f4a4c0d1e8f31f8c11a10 ] Commit c62987bbd8a1 ("bridge: push bridge setting ageing_time down to switchdev") added a check for minimum and maximum ageing time, but this breaks existing behaviour where one can set ageing time to 0 for a non-learning bridge. Push this check down to the driver and allow the check in the bridge layer to be removed. Currently ageing time 0 is refused by the driver, but we can later add support for this functionality. Signed-off-by: Ido Schimmel <idosch@mellanox.com> Acked-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-04-20qlcnic: Fix mailbox completion handling during spurious interruptRajesh Borundia
[ Upstream commit 819bfe764dceec2f6b4551768453f374b4c60443 ] o While the driver is in the middle of a MB completion processing and it receives a spurious MB interrupt, it is mistaken as a good MB completion interrupt leading to premature completion of the next MB request. Fix the driver to guard against this by checking the current state of MB processing and ignore the spurious interrupt. Also added a stats counter to record this condition. Signed-off-by: Rajesh Borundia <rajesh.borundia@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-04-20qlcnic: Remove unnecessary usage of atomic_tRajesh Borundia
[ Upstream commit 5bf93251cee1fb66141d1d2eaff86e04a9397bdf ] o atomic_t usage is incorrect as we are not implementing any atomicity. Signed-off-by: Rajesh Borundia <rajesh.borundia@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-04-20sh_eth: advance 'rxdesc' later in sh_eth_ring_format()Sergei Shtylyov
[ Upstream commit d0ba913488dc8c55d1880f5ed34f096dc45fb05d ] Iff dma_map_single() fails, 'rxdesc' should point to the last filled RX descriptor, so that it can be marked as the last one, however the driver would have already advanced it by that time. In order to fix that, only fill an RX descriptor once all the data for it is ready. Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-04-20sh_eth: fix NULL pointer dereference in sh_eth_ring_format()Sergei Shtylyov
[ Upstream commit c1b7fca65070bfadca94dd53a4e6b71cd4f69715 ] In a low memory situation, if netdev_alloc_skb() fails on a first RX ring loop iteration in sh_eth_ring_format(), 'rxdesc' is still NULL. Avoid kernel oops by adding the 'rxdesc' check after the loop. Reported-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-04-20net: qca_spi: clear IFF_TX_SKB_SHARINGStefan Wahren
[ Upstream commit a4690afeb0d2d7ba4d60dfa98a89f3bb1ce60ecd ] ether_setup sets IFF_TX_SKB_SHARING but this is not supported by qca_spi as it modifies the skb on xmit. Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com> Fixes: 291ab06ecf67 (net: qualcomm: new Ethernet over SPI driver for QCA7000) Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-04-20net: qca_spi: Don't clear IFF_BROADCASTStefan Wahren
[ Upstream commit 2b70bad23c89b121a3e4a00f8968d14ebb78887d ] Currently qcaspi_netdev_setup accidentally clears IFF_BROADCAST. So fix this by keeping the flags from ether_setup. Reported-by: Michael Heimpold <michael.heimpold@i2se.com> Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com> Fixes: 291ab06ecf67 (net: qualcomm: new Ethernet over SPI driver for QCA7000) Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-04-20net: jme: fix suspend/resume on JMC260Diego Viola
[ Upstream commit ee50c130c82175eaa0820c96b6d3763928af2241 ] The JMC260 network card fails to suspend/resume because the call to jme_start_irq() was too early, moving the call to jme_start_irq() after the call to jme_reset_link() makes it work. Prior this change suspend/resume would fail unless /sys/power/pm_async=0 was explicitly specified. Relevant bug report: https://bugzilla.kernel.org/show_bug.cgi?id=112351 Signed-off-by: Diego Viola <diego.viola@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-04-12net: mvneta: enable change MAC address when interface is upDmitri Epshtein
commit 928b6519afeb2a5e2dc61154380b545ed66c476a upstream. Function eth_prepare_mac_addr_change() is called as part of MAC address change. This function check if interface is running. To enable change MAC address when interface is running: IFF_LIVE_ADDR_CHANGE flag must be set to dev->priv_flags field Fixes: c5aff18204da ("net: mvneta: driver for Marvell Armada 370/XP network unit") Signed-off-by: Dmitri Epshtein <dima@marvell.com> Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-03-07Merge tag 'v4.4.4' into linux-4.4.y-rtSebastian Andrzej Siewior
This is the 4.4.4 stable release
2016-03-03net/mlx4_en: Avoid changing dev->features directly in run-timeEugenia Emantayev
[ Upstream commit 925ab1aa9394bbaeac47ee5b65d3fdf0fb8135cf ] It's forbidden to manually change dev->features in run-time. Currently, this is done in the driver to make sure that GSO_UDP_TUNNEL is advertized only when VXLAN tunnel is set. However, since the stack actually does features intersection with hw_enc_features, we can safely revert to advertizing features early when registering the netdevice. Fixes: f4a1edd56120 ('net/mlx4_en: Advertize encapsulation offloads [...]') Signed-off-by: Eugenia Emantayev <eugenia@mellanox.com> Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-03-03net/mlx4_en: Choose time-stamping shift value according to HW frequencyEugenia Emantayev
[ Upstream commit 31c128b66e5b28f468076e4f3ca3025c35342041 ] Previously, the shift value used for time-stamping was constant and didn't depend on the HW chip frequency. Change that to take the frequency into account and calculate the maximal value in cycles per wraparound of ten seconds. This time slot was chosen since it gives a good accuracy in time synchronization. Algorithm for shift value calculation: * Round up the maximal value in cycles to nearest power of two * Calculate maximal multiplier by division of all 64 bits set to above result * Then, invert the function clocksource_khz2mult() to get the shift from maximal mult value Fixes: ec693d47010e ('net/mlx4_en: Add HW timestamping (TS) support') Signed-off-by: Eugenia Emantayev <eugenia@mellanox.com> Reviewed-by: Matan Barak <matanb@mellanox.com> Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-03-03net/mlx4_en: Count HW buffer overrun only onceAmir Vadai
[ Upstream commit 281e8b2fdf8e4ef366b899453cae50e09b577ada ] RdropOvflw counts overrun of HW buffer, therefore should be used for rx_fifo_errors only. Currently RdropOvflw counter is mistakenly also set into rx_missed_errors and rx_over_errors too, which makes the device total dropped packets accounting to show wrong results. Fix that. Use it for rx_fifo_errors only. Fixes: c27a02cd94d6 ('mlx4_en: Add driver for Mellanox ConnectX 10GbE NIC') Signed-off-by: Amir Vadai <amir@vadai.me> Signed-off-by: Eugenia Emantayev <eugenia@mellanox.com> Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-03-03enic: increment devcmd2 result ring in case of timeoutSandeep Pillai
[ Upstream commit ca7f41a4957b872577807169bd7464b36aae9b9c ] Firmware posts the devcmd result in result ring. In case of timeout, driver does not increment the current result pointer and firmware could post the result after timeout has occurred. During next devcmd, driver would be reading the result of previous devcmd. Fix this by incrementing result even in case of timeout. Fixes: 373fb0873d43 ("enic: add devcmd2") Signed-off-by: Sandeep Pillai <sanpilla@cisco.com> Signed-off-by: Govindarajulu Varadarajan <_govind@gmx.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-03-03tg3: Fix for tg3 transmit queue 0 timed out when too many gso_segsSiva Reddy Kallam
[ Upstream commit b7d987295c74500b733a0ba07f9a9bcc4074fa83 ] tg3_tso_bug() can hit a condition where the entire tx ring is not big enough to segment the GSO packet. For example, if MSS is very small, gso_segs can exceed the tx ring size. When we hit the condition, it will cause tx timeout. tg3_tso_bug() is called to handle TSO and DMA hardware bugs. For TSO bugs, if tg3_tso_bug() cannot succeed, we have to drop the packet. For DMA bugs, we can still fall back to linearize the SKB and let the hardware transmit the TSO packet. This patch adds a function tg3_tso_bug_gso_check() to check if there are enough tx descriptors for GSO before calling tg3_tso_bug(). The caller will then handle the error appropriately - drop or lineraize the SKB. v2: Corrected patch description to avoid confusion. Signed-off-by: Siva Reddy Kallam <siva.kallam@broadcom.com> Signed-off-by: Michael Chan <mchan@broadcom.com> Acked-by: Prashant Sreedharan <prashant@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-03-03switchdev: Require RTNL mutex to be held when sending FDB notificationsIdo Schimmel
[ Upstream commit 4f2c6ae5c64c353fb1b0425e4747e5603feadba1 ] When switchdev drivers process FDB notifications from the underlying device they resolve the netdev to which the entry points to and notify the bridge using the switchdev notifier. However, since the RTNL mutex is not held there is nothing preventing the netdev from disappearing in the middle, which will cause br_switchdev_event() to dereference a non-existing netdev. Make switchdev drivers hold the lock at the beginning of the notification processing session and release it once it ends, after notifying the bridge. Also, remove switchdev_mutex and fdb_lock, as they are no longer needed when RTNL mutex is held. Fixes: 03bf0c281234 ("switchdev: introduce switchdev notifier") Signed-off-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-01Merge tag 'v4.4.1' into linux-4.4.y-rtSebastian Andrzej Siewior
This is the 4.4.1 stable release
2016-01-31net/mlx5_core: Fix trimming down IRQ numberDoron Tsur
[ Upstream commit 0b6e26ce89391327d955a756a7823272238eb867 ] With several ConnectX-4 cards installed on a server, one may receive irqn > 255 from the kernel API, which we mistakenly trim to 8bit. This causes EQ creation failure with the following stack trace: [<ffffffff812a11f4>] dump_stack+0x48/0x64 [<ffffffff810ace21>] __setup_irq+0x3a1/0x4f0 [<ffffffff810ad7e0>] request_threaded_irq+0x120/0x180 [<ffffffffa0923660>] ? mlx5_eq_int+0x450/0x450 [mlx5_core] [<ffffffffa0922f64>] mlx5_create_map_eq+0x1e4/0x2b0 [mlx5_core] [<ffffffffa091de01>] alloc_comp_eqs+0xb1/0x180 [mlx5_core] [<ffffffffa091ea99>] mlx5_dev_init+0x5e9/0x6e0 [mlx5_core] [<ffffffffa091ec29>] init_one+0x99/0x1c0 [mlx5_core] [<ffffffff812e2afc>] local_pci_probe+0x4c/0xa0 Fixing it by changing of the irqn type from u8 to unsigned int to support values > 255 Fixes: 61d0e73e0a5a ('net/mlx5_core: Use the the real irqn in eq->irqn') Reported-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: Doron Tsur <doront@mellanox.com> Signed-off-by: Matan Barak <matanb@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-01-31dwc_eth_qos: Fix dma address for multi-fragment skbsLars Persson
[ Upstream commit d461873272169a3fc3a8d155d7b1c92e9d97b419 ] The offset inside the fragment was not used for the dma address and silent data corruption resulted because TSO makes the checksum match. Fixes: 077742dac2c7 ("dwc_eth_qos: Add support for Synopsys DWC Ethernet QoS") Signed-off-by: Lars Persson <larper@axis.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-01-12Merge tag 'v4.4' into linux-4.4.y-rtSebastian Andrzej Siewior
Linux 4.4
2016-01-04cxgb4: correctly handling failed allocationInsu Yun
Since t4_alloc_mem can be failed in memory pressure, if not properly handled, NULL dereference could be happened. Signed-off-by: Insu Yun <wuninsu@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-01-04qlcnic: correctly handle qlcnic_alloc_mbx_argsInsu Yun
Since qlcnic_alloc_mbx_args can be failed, return value should be checked. Signed-off-by: Insu Yun <wuninsu@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-31Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds
Pull networking fixes from David Miller: 1) Prevent XFRM per-cpu counter updates for one namespace from being applied to another namespace. Fix from DanS treetman. 2) Fix RCU de-reference in iwl_mvm_get_key_sta_id(), from Johannes Berg. 3) Remove ethernet header assumption in nft_do_chain_netdev(), from Pablo Neira Ayuso. 4) Fix cpsw PHY ident with multiple slaves and fixed-phy, from Pascal Speck. 5) Fix use after free in sixpack_close and mkiss_close. 6) Fix VXLAN fw assertion on bnx2x, from Yuval Mintz. 7) natsemi doesn't check for DMA mapping errors, from Alexey Khoroshilov. 8) Fix inverted test in ip6addrlbl_get(), from ANdrey Ryabinin. 9) Missing initialization of needed_headroom in geneve tunnel driver, from Paolo Abeni. 10) Fix conntrack template leak in openvswitch, from Joe Stringer. 11) Mission initialization of wq->flags in sock_alloc_inode(), from Nicolai Stange. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (35 commits) sctp: sctp should release assoc when sctp_make_abort_user return NULL in sctp_close net, socket, socket_wq: fix missing initialization of flags drivers: net: cpsw: fix error return code openvswitch: Fix template leak in error cases. sctp: label accepted/peeled off sockets sctp: use GFP_USER for user-controlled kmalloc qlcnic: fix a loop exit condition better net: cdc_ncm: avoid changing RX/TX buffers on MTU changes geneve: initialize needed_headroom ipv6: honor ifindex in case we receive ll addresses in router advertisements addrconf: always initialize sysctl table data ipv6/addrlabel: fix ip6addrlbl_get() switchdev: bridge: Pass ageing time as clock_t instead of jiffies sh_eth: fix 16-bit descriptor field access endianness too veth: don’t modify ip_summed; doing so treats packets with bad checksums as good. net: usb: cdc_ncm: Adding Dell DW5813 LTE AT&T Mobile Broadband Card net: usb: cdc_ncm: Adding Dell DW5812 LTE Verizon Mobile Broadband Card natsemi: add checks for dma mapping errors rhashtable: Kill harmless RCU warning in rhashtable_walk_init openvswitch: correct encoding of set tunnel action attributes ...
2015-12-29drivers: net: cpsw: fix error return codeJulia Lawall
Propagate the return value of platform_get_irq on failure. A simplified version of the semantic match that finds the two cases where no error code is returned at all is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ identifier ret; expression e1,e2; @@ ( if (\(ret < 0\|ret != 0\)) { ... return ret; } | ret = 0 ) ... when != ret = e1 when != &ret *if(...) { ... when != ret = e2 when forall return ret; } // </smpl> Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-28Merge tag 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma Pull rdma fixes from Doug Ledford: "Three late 4.4-rc fixes. The first two were very small in terms of number of lines, the third is more lines of change than I like this late in the cycle, but there are positive test results from Avagotech and from my own test setup with the target hardware, and given the problem was a 100% failure case, I sent it through. - A previous patch updated the mlx4 driver to use vmalloc when there was not enough memory to get a contiguous region large enough for our needs, so we need kvfree() whenever we free that item. We missed one place, so fix that now. - A previous patch added code to match incoming packets against a specific device, but failed to compensate for devices that have both InfiniBand and Ethernet ports. Fix that. - Under certain vlan conditions, the ocrdma driver would fail to bring up any vlan interfaces and would print out a circular locking failure. Fix that" * tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma: RDMA/be2net: Remove open and close entry points RDMA/ocrdma: Depend on async link events from CNA RDMA/ocrdma: Dispatch only port event when port state changes RDMA/ocrdma: Fix vlan-id assignment in qp parameters IB/mlx4: Replace kfree with kvfree in mlx4_ib_destroy_srq IB/cma: cma_match_net_dev needs to take into account port_num
2015-12-28RDMA/be2net: Remove open and close entry pointsDevesh Sharma
Recently Dough Ledford reported a deadlock happening between ocrdma-load sequence and NetworkManager service issueing "open" on be2net interface. The deadlock happens when any be2net hook (e.g. open/close) is called in parallel to insmod ocrdma.ko. A. be2net is sending administrative open/close event to ocrdma holding device_list_mutex. It does this from ndo_open/ndo_stop hooks of be2net. So sequence of locks is rtnl_lock---> device_list lock B. When new ocrdma roce device gets registered, infiniband stack now takes rtnl_lock in ib_register_device() in GID initialization routines. So sequence of locks in this path is device_list lock ---> rtnl_lock. This improper locking sequence causes deadlock. In order to resolve the above deadlock condition, ocrdma intorduced a patch to stop listening to administrative open/close events generated from be2net driver. It now depends on link-state-change async-event generated from CNA. This change leaves behind dead code which used to generate administrative open/close events. This patch cleans-up all that dead code from be2net. Reported-by: Doug Ledford <dledford@redhat.com> CC: Sathya Perla <sathya.perla@avagotech.com> Signed-off-by: Padmanabh Ratnakar <padmanabh.ratnakar@avagotech.com> Signed-off-by: Selvin Xavier <selvin.xavier@avagotech.com> Signed-off-by: Devesh Sharma <devesh.sharma@avagotech.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2015-12-24qlcnic: fix a loop exit condition betterDan Carpenter
In the original code, if we succeeded on the last iteration through the loop then we still returned failure. Fixes: 389e4e04ad2d ('qlcnic: fix a timeout loop') Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-23drivers/net: vortex fix locking issuesSteven Rostedt
Argh, cut and paste wasn't enough... Use this patch instead. It needs an irq disable. But, believe it or not, on SMP this is actually better. If the irq is shared (as it is in Mark's case), we don't stop the irq of other devices from being handled on another CPU (unfortunately for Mark, he pinned all interrupts to one CPU). Signed-off-by: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> drivers/net/ethernet/3com/3c59x.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) Signed-off-by: Ingo Molnar <mingo@elte.hu>
2015-12-23drivers/net: fix livelock issuesThomas Gleixner
Preempt-RT runs into a live lock issue with the NETDEV_TX_LOCKED micro optimization. The reason is that the softirq thread is rescheduling itself on that return value. Depending on priorities it starts to monoplize the CPU and livelock on UP systems. Remove it. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2015-12-23drivers/net: Use disable_irq_nosync() in 8139tooIngo Molnar
Use disable_irq_nosync() instead of disable_irq() as this might be called in atomic context with netpoll. Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2015-12-22sh_eth: fix 16-bit descriptor field access endianness tooSergei Shtylyov
Commit 1299653affa4 ("sh_eth: fix descriptor access endianness") only addressed the 32-bit buffer address field byte-swapping but the driver still accesses 16-bit frame/buffer length descriptor fields without the necessary byte-swapping -- which should affect the big-endian kernels. In order to be able to use {cpu|edmac}_to_{edmac|cpu}(), we need to declare the RX/TX descriptor word 1 as a 32-bit field and use shifts/masking to access the 16-bit subfields (which gets rid of the ugly #ifdef'ery too)... Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-19natsemi: add checks for dma mapping errorsAlexey Khoroshilov
refill_rx() and start_tx() do not check if mapping dma memory succeed. The patch adds the checks and failure handling. Found by Linux Driver Verification project (linuxtesting.org). Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru> Signed-off-by: David S. Miller <davem@davemloft.net>
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