1. 01 Aug, 2014 1 commit
  2. 17 Jul, 2014 1 commit
  3. 16 Jul, 2014 2 commits
  4. 14 Jul, 2014 1 commit
    • Jason Wang's avatar
      mlx4: mark napi id for gro_skb · 32b333fe
      Jason Wang authored
      
      
      Napi id was not marked for gro_skb, this will lead rx busy loop won't
      work correctly since they stack never try to call low latency receive
      method because of a zero socket napi id. Fix this by marking napi id
      for gro_skb.
      
      The transaction rate of 1 byte netperf tcp_rr gets about 50% increased
      (from 20531.68 to 30610.88).
      
      Cc: Amir Vadai <amirv@mellanox.com>
      Signed-off-by: default avatarJason Wang <jasowang@redhat.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      32b333fe
  5. 13 Jul, 2014 1 commit
  6. 11 Jul, 2014 1 commit
  7. 10 Jul, 2014 2 commits
  8. 09 Jul, 2014 2 commits
  9. 08 Jul, 2014 3 commits
    • Thomas Fitzsimmons's avatar
      net: mvneta: Fix big endian issue in mvneta_txq_desc_csum() · 0a198587
      Thomas Fitzsimmons authored
      
      
      This commit fixes the command value generated for CSUM calculation
      when running in big endian mode.  The Ethernet protocol ID for IP was
      being unconditionally byte-swapped in the layer 3 protocol check (with
      swab16), which caused the mvneta driver to not function correctly in
      big endian mode.  This patch byte-swaps the ID conditionally with
      htons.
      
      Cc: <stable@vger.kernel.org> # v3.13+
      Signed-off-by: default avatarThomas Fitzsimmons <fitzsim@fitzsim.org>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      0a198587
    • Thomas Petazzoni's avatar
      net: mvneta: fix operation in 10 Mbit/s mode · 4d12bc63
      Thomas Petazzoni authored
      As reported by Maggie Mae Roxas, the mvneta driver doesn't behave
      properly in 10 Mbit/s mode. This is due to a misconfiguration of the
      MVNETA_GMAC_AUTONEG_CONFIG register: bit MVNETA_GMAC_CONFIG_MII_SPEED
      must be set for a 100 Mbit/s speed, but cleared for a 10 Mbit/s speed,
      which the driver was not properly doing. This commit adjusts that by
      setting the MVNETA_GMAC_CONFIG_MII_SPEED bit only in 100 Mbit/s mode,
      and relying on the fact that all the speed related bits of this
      register are cleared at the beginning of the mvneta_adjust_link()
      function.
      
      This problem exists since c5aff182 ("net: mvneta: driver for
      Marvell Armada 370/XP network unit") which is the commit that
      introduced the mvneta driver in the kernel.
      
      Cc: <stable@vger.kernel.org> # v3.8+
      Fixes: c5aff182
      
       ("net: mvneta: driver for Marvell Armada 370/XP network unit")
      Reported-by: default avatarMaggie Mae Roxas <maggie.mae.roxas@gmail.com>
      Cc: Maggie Mae Roxas <maggie.mae.roxas@gmail.com>
      Signed-off-by: default avatarThomas Petazzoni <thomas.petazzoni@free-electrons.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      4d12bc63
    • Amir Vadai's avatar
      net/mlx4_en: Ignore budget on TX napi polling · fbc6daf1
      Amir Vadai authored
      
      
      It is recommended that TX work not count against the quota.
      The cost of TX packet liberation is a minute percentage of what it costs to
      process an RX frame. Furthermore, that SKB freeing makes memory available for
      other paths in the stack.
      
      Give the TX a larger budget and be more aggressive about cleaning up the Tx
      descriptors this budget could be changed using ethtool:
      $ ethtool -C eth1 tx-frames-irq <budget>
      Signed-off-by: default avatarAmir Vadai <amirv@mellanox.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      fbc6daf1
  10. 07 Jul, 2014 3 commits
    • Or Gerlitz's avatar
      net/mlx4_en: Don't configure the HW vxlan parser when vxlan offloading isn't set · e326f2f1
      Or Gerlitz authored
      The add_vxlan_port ndo driver code was wrongly testing whether HW vxlan offloads
      are supported by the device instead of checking if they are currently enabled.
      
      This causes the driver to configure the HW parser to conduct matching for vxlan
      packets but since no steering rules were set, vxlan packets are dropped on RX.
      
      Fix that by doing the right test, as done in the del_vxlan_port ndo handler.
      
      Fixes: 1b136de1
      
       ('net/mlx4: Implement vxlan ndo calls')
      Signed-off-by: default avatarOr Gerlitz <ogerlitz@mellanox.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      e326f2f1
    • David S. Miller's avatar
      Revert "net: stmmac: add platform init/exit for Altera's ARM socfpga" · 26a9ebca
      David S. Miller authored
      This reverts commit 0acf1676
      
      .
      
      Breaks the build due to missing reference to phy_resume in
      the resulting dwmac-socfpga.o object.
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      26a9ebca
    • Zhao Qiang's avatar
      powerpc/ucc_geth: deal with a compile warning · 8844a006
      Zhao Qiang authored
      
      
      deal with a compile warning: comparison between
      'enum qe_fltr_largest_external_tbl_lookup_key_size'
      and 'enum qe_fltr_tbl_lookup_key_size'
      
      the code:
      	"if (ug_info->largestexternallookupkeysize ==
      	     QE_FLTR_TABLE_LOOKUP_KEY_SIZE_8_BYTES)"
      is warned because different enum, so modify it.
      
      	"enum qe_fltr_largest_external_tbl_lookup_key_size
      	             largestexternallookupkeysize;
      
      	enum qe_fltr_tbl_lookup_key_size {
      		 QE_FLTR_TABLE_LOOKUP_KEY_SIZE_8_BYTES
      			 = 0x3f,         /* LookupKey parsed by the Generate LookupKey
      					    CMD is truncated to 8 bytes */
      		 QE_FLTR_TABLE_LOOKUP_KEY_SIZE_16_BYTES
      			 = 0x5f,         /* LookupKey parsed by the Generate LookupKey
      					    CMD is truncated to 16 bytes */
      	 };
      
      	 /* QE FLTR extended filtering Largest External Table Lookup Key Size */
      	 enum qe_fltr_largest_external_tbl_lookup_key_size {
      		 QE_FLTR_LARGEST_EXTERNAL_TABLE_LOOKUP_KEY_SIZE_NONE
      			 = 0x0,/* not used */
      		 QE_FLTR_LARGEST_EXTERNAL_TABLE_LOOKUP_KEY_SIZE_8_BYTES
      			 = QE_FLTR_TABLE_LOOKUP_KEY_SIZE_8_BYTES,        /* 8 bytes */
      		 QE_FLTR_LARGEST_EXTERNAL_TABLE_LOOKUP_KEY_SIZE_16_BYTES
      			 = QE_FLTR_TABLE_LOOKUP_KEY_SIZE_16_BYTES,       /* 16 bytes */
      	 };"
      Signed-off-by: default avatarZhao Qiang <B45475@freescale.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      8844a006
  11. 02 Jul, 2014 5 commits
  12. 01 Jul, 2014 7 commits
  13. 26 Jun, 2014 1 commit
  14. 25 Jun, 2014 3 commits
  15. 24 Jun, 2014 1 commit
    • Li RongQing's avatar
      cxgb4: Not need to hold the adap_rcu_lock lock when read adap_rcu_list · ee9a33b2
      Li RongQing authored
      
      
      cxgb4_netdev maybe lead to dead lock, since it uses a spin lock, and be called
      in both thread and softirq context, but not disable BH, the lockdep report is
      below; In fact, cxgb4_netdev only reads adap_rcu_list with RCU protection, so
      not need to hold spin lock again.
      	=================================
      	[ INFO: inconsistent lock state ]
      	3.14.7+ #24 Tainted: G         C O
      	---------------------------------
      	inconsistent {SOFTIRQ-ON-W} -> {IN-SOFTIRQ-W} usage.
      	radvd/3794 [HC0[0]:SC1[1]:HE1:SE0] takes:
      	 (adap_rcu_lock){+.?...}, at: [<ffffffffa09989ea>] clip_add+0x2c/0x116 [cxgb4]
      	{SOFTIRQ-ON-W} state was registered at:
      	  [<ffffffff810fca81>] __lock_acquire+0x34a/0xe48
      	  [<ffffffff810fd98b>] lock_acquire+0x82/0x9d
      	  [<ffffffff815d6ff8>] _raw_spin_lock+0x34/0x43
      	  [<ffffffffa09989ea>] clip_add+0x2c/0x116 [cxgb4]
      	  [<ffffffffa0998beb>] cxgb4_inet6addr_handler+0x117/0x12c [cxgb4]
      	  [<ffffffff815da98b>] notifier_call_chain+0x32/0x5c
      	  [<ffffffff815da9f9>] __atomic_notifier_call_chain+0x44/0x6e
      	  [<ffffffff815daa32>] atomic_notifier_call_chain+0xf/0x11
      	  [<ffffffff815b1356>] inet6addr_notifier_call_chain+0x16/0x18
      	  [<ffffffffa01f72e5>] ipv6_add_addr+0x404/0x46e [ipv6]
      	  [<ffffffffa01f8df0>] addrconf_add_linklocal+0x5f/0x95 [ipv6]
      	  [<ffffffffa01fc3e9>] addrconf_notify+0x632/0x841 [ipv6]
      	  [<ffffffff815da98b>] notifier_call_chain+0x32/0x5c
      	  [<ffffffff810e09a1>] __raw_notifier_call_chain+0x9/0xb
      	  [<ffffffff810e09b2>] raw_notifier_call_chain+0xf/0x11
      	  [<ffffffff8151b3b7>] call_netdevice_notifiers_info+0x4e/0x56
      	  [<ffffffff8151b3d0>] call_netdevice_notifiers+0x11/0x13
      	  [<ffffffff8151c0a6>] netdev_state_change+0x1f/0x38
      	  [<ffffffff8152f004>] linkwatch_do_dev+0x3b/0x49
      	  [<ffffffff8152f184>] __linkwatch_run_queue+0x10b/0x144
      	  [<ffffffff8152f1dd>] linkwatch_event+0x20/0x27
      	  [<ffffffff810d7bc0>] process_one_work+0x1cb/0x2ee
      	  [<ffffffff810d7e3b>] worker_thread+0x12e/0x1fc
      	  [<ffffffff810dd391>] kthread+0xc4/0xcc
      	  [<ffffffff815dc48c>] ret_from_fork+0x7c/0xb0
      	irq event stamp: 3388
      	hardirqs last  enabled at (3388): [<ffffffff810c6c85>]
      	__local_bh_enable_ip+0xaa/0xd9
      	hardirqs last disabled at (3387): [<ffffffff810c6c2d>]
      	__local_bh_enable_ip+0x52/0xd9
      	softirqs last  enabled at (3288): [<ffffffffa01f1d5b>]
      	rcu_read_unlock_bh+0x0/0x2f [ipv6]
      	softirqs last disabled at (3289): [<ffffffff815ddafc>]
      	do_softirq_own_stack+0x1c/0x30
      
      	other info that might help us debug this:
      	 Possible unsafe locking scenario:
      
      	       CPU0
      	       ----
      	  lock(adap_rcu_lock);
      	  <Interrupt>
      	    lock(adap_rcu_lock);
      
      	 *** DEADLOCK ***
      
      	5 locks held by radvd/3794:
      	 #0:  (sk_lock-AF_INET6){+.+.+.}, at: [<ffffffffa020b85a>]
      	rawv6_sendmsg+0x74b/0xa4d [ipv6]
      	 #1:  (rcu_read_lock){.+.+..}, at: [<ffffffff8151ac6b>]
      	rcu_lock_acquire+0x0/0x29
      	 #2:  (rcu_read_lock){.+.+..}, at: [<ffffffffa01f4cca>]
      	rcu_lock_acquire.constprop.16+0x0/0x30 [ipv6]
      	 #3:  (rcu_read_lock){.+.+..}, at: [<ffffffff810e09b4>]
      	rcu_lock_acquire+0x0/0x29
      	 #4:  (rcu_read_lock){.+.+..}, at: [<ffffffffa0998782>]
      	rcu_lock_acquire.constprop.40+0x0/0x30 [cxgb4]
      
      	stack backtrace:
      	CPU: 7 PID: 3794 Comm: radvd Tainted: G         C O 3.14.7+ #24
      	Hardware name: Supermicro X7DBU/X7DBU, BIOS 6.00 12/03/2007
      	 ffffffff81f15990 ffff88012fdc36a8 ffffffff815d0016 0000000000000006
      	 ffff8800c80dc2a0 ffff88012fdc3708 ffffffff815cc727 0000000000000001
      	 0000000000000001 ffff880100000000 ffffffff81015b02 ffff8800c80dcb58
      	Call Trace:
      	 <IRQ>  [<ffffffff815d0016>] dump_stack+0x4e/0x71
      	 [<ffffffff815cc727>] print_usage_bug+0x1ec/0x1fd
      	 [<ffffffff81015b02>] ? save_stack_trace+0x27/0x44
      	 [<ffffffff810fbfaa>] ? check_usage_backwards+0xa0/0xa0
      	 [<ffffffff810fc640>] mark_lock+0x11b/0x212
      	 [<ffffffff810fca0b>] __lock_acquire+0x2d4/0xe48
      	 [<ffffffff810fbfaa>] ? check_usage_backwards+0xa0/0xa0
      	 [<ffffffff810fbff6>] ? check_usage_forwards+0x4c/0xa6
      	 [<ffffffff810c6c8a>] ? __local_bh_enable_ip+0xaf/0xd9
      	 [<ffffffff810fd98b>] lock_acquire+0x82/0x9d
      	 [<ffffffffa09989ea>] ? clip_add+0x2c/0x116 [cxgb4]
      	 [<ffffffffa0998782>] ? rcu_read_unlock+0x23/0x23 [cxgb4]
      	 [<ffffffff815d6ff8>] _raw_spin_lock+0x34/0x43
      	 [<ffffffffa09989ea>] ? clip_add+0x2c/0x116 [cxgb4]
      	 [<ffffffffa09987b0>] ? rcu_lock_acquire.constprop.40+0x2e/0x30 [cxgb4]
      	 [<ffffffffa0998782>] ? rcu_read_unlock+0x23/0x23 [cxgb4]
      	 [<ffffffffa09989ea>] clip_add+0x2c/0x116 [cxgb4]
      	 [<ffffffffa0998beb>] cxgb4_inet6addr_handler+0x117/0x12c [cxgb4]
      	 [<ffffffff810fd99d>] ? lock_acquire+0x94/0x9d
      	 [<ffffffff810e09b4>] ? raw_notifier_call_chain+0x11/0x11
      	 [<ffffffff815da98b>] notifier_call_chain+0x32/0x5c
      	 [<ffffffff815da9f9>] __atomic_notifier_call_chain+0x44/0x6e
      	 [<ffffffff815daa32>] atomic_notifier_call_chain+0xf/0x11
      	 [<ffffffff815b1356>] inet6addr_notifier_call_chain+0x16/0x18
      	 [<ffffffffa01f72e5>] ipv6_add_addr+0x404/0x46e [ipv6]
      	 [<ffffffff810fde6a>] ? trace_hardirqs_on+0xd/0xf
      	 [<ffffffffa01fb634>] addrconf_prefix_rcv+0x385/0x6ea [ipv6]
      	 [<ffffffffa0207950>] ndisc_rcv+0x9d3/0xd76 [ipv6]
      	 [<ffffffffa020d536>] icmpv6_rcv+0x592/0x67b [ipv6]
      	 [<ffffffff810c6c85>] ? __local_bh_enable_ip+0xaa/0xd9
      	 [<ffffffff810c6c85>] ? __local_bh_enable_ip+0xaa/0xd9
      	 [<ffffffff810fd8dc>] ? lock_release+0x14e/0x17b
      	 [<ffffffffa020df97>] ? rcu_read_unlock+0x21/0x23 [ipv6]
      	 [<ffffffff8150df52>] ? rcu_read_unlock+0x23/0x23
      	 [<ffffffffa01f4ede>] ip6_input_finish+0x1e4/0x2fc [ipv6]
      	 [<ffffffffa01f540b>] ip6_input+0x33/0x38 [ipv6]
      	 [<ffffffffa01f5557>] ip6_mc_input+0x147/0x160 [ipv6]
      	 [<ffffffffa01f4ba3>] ip6_rcv_finish+0x7c/0x81 [ipv6]
      	 [<ffffffffa01f5397>] ipv6_rcv+0x3a1/0x3e2 [ipv6]
      	 [<ffffffff8151ef96>] __netif_receive_skb_core+0x4ab/0x511
      	 [<ffffffff810fdc94>] ? mark_held_locks+0x71/0x99
      	 [<ffffffff8151f0c0>] ? process_backlog+0x69/0x15e
      	 [<ffffffff8151f045>] __netif_receive_skb+0x49/0x5b
      	 [<ffffffff8151f0cf>] process_backlog+0x78/0x15e
      	 [<ffffffff8151f571>] ? net_rx_action+0x1a2/0x1cc
      	 [<ffffffff8151f47b>] net_rx_action+0xac/0x1cc
      	 [<ffffffff810c69b7>] ? __do_softirq+0xad/0x218
      	 [<ffffffff810c69ff>] __do_softirq+0xf5/0x218
      	 [<ffffffff815ddafc>] do_softirq_own_stack+0x1c/0x30
      	 <EOI>  [<ffffffff810c6bb6>] do_softirq+0x38/0x5d
      	 [<ffffffffa01f1d5b>] ? ip6_copy_metadata+0x156/0x156 [ipv6]
      	 [<ffffffff810c6c78>] __local_bh_enable_ip+0x9d/0xd9
      	 [<ffffffffa01f1d88>] rcu_read_unlock_bh+0x2d/0x2f [ipv6]
      	 [<ffffffffa01f28b4>] ip6_finish_output2+0x381/0x3d8 [ipv6]
      	 [<ffffffffa01f49ef>] ip6_finish_output+0x6e/0x73 [ipv6]
      	 [<ffffffffa01f4a70>] ip6_output+0x7c/0xa8 [ipv6]
      	 [<ffffffff815b1bfa>] dst_output+0x18/0x1c
      	 [<ffffffff815b1c9e>] ip6_local_out+0x1c/0x21
      	 [<ffffffffa01f2489>] ip6_push_pending_frames+0x37d/0x427 [ipv6]
      	 [<ffffffff81558af8>] ? skb_orphan+0x39/0x39
      	 [<ffffffffa020b85a>] ? rawv6_sendmsg+0x74b/0xa4d [ipv6]
      	 [<ffffffffa020ba51>] rawv6_sendmsg+0x942/0xa4d [ipv6]
      	 [<ffffffff81584cd2>] inet_sendmsg+0x3d/0x66
      	 [<ffffffff81508930>] __sock_sendmsg_nosec+0x25/0x27
      	 [<ffffffff8150b0d7>] sock_sendmsg+0x5a/0x7b
      	 [<ffffffff810fd8dc>] ? lock_release+0x14e/0x17b
      	 [<ffffffff8116d756>] ? might_fault+0x9e/0xa5
      	 [<ffffffff8116d70d>] ? might_fault+0x55/0xa5
      	 [<ffffffff81508cb1>] ? copy_from_user+0x2a/0x2c
      	 [<ffffffff8150b70c>] ___sys_sendmsg+0x226/0x2d9
      	 [<ffffffff810fcd25>] ? __lock_acquire+0x5ee/0xe48
      	 [<ffffffff810fde01>] ? trace_hardirqs_on_caller+0x145/0x1a1
      	 [<ffffffff8118efcb>] ? slab_free_hook.isra.71+0x50/0x59
      	 [<ffffffff8115c81f>] ? release_pages+0xbc/0x181
      	 [<ffffffff810fd99d>] ? lock_acquire+0x94/0x9d
      	 [<ffffffff81115e97>] ? read_seqcount_begin.constprop.25+0x73/0x90
      	 [<ffffffff8150c408>] __sys_sendmsg+0x3d/0x5b
      	 [<ffffffff8150c433>] SyS_sendmsg+0xd/0x19
      	 [<ffffffff815dc53d>] system_call_fastpath+0x1a/0x1f
      Reported-by: default avatarBen Greear <greearb@candelatech.com>
      Cc: Casey Leedom <leedom@chelsio.com>
      Cc: Hariprasad Shenai <hariprasad@chelsio.com>
      Signed-off-by: default avatarLi RongQing <roy.qing.li@gmail.com>
      Signed-off-by: default avatarEric Dumazet <eric.dumazet@gmail.com>
      Acked-by: default avatarCasey Leedom <leedom@chelsio.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      ee9a33b2
  16. 23 Jun, 2014 1 commit
    • Suresh Reddy's avatar
      be2net: fix qnq mode detection on VFs · 66064dbc
      Suresh Reddy authored
      The driver (on PF or VF) needs to detect if the function is in qnq mode for
      a HW hack in be_rx_compl_get() to work.
      
      The driver queries this information using the GET_PROFILE_CONFIG cmd
      (since the commit below can caused this regression.) But this cmd is not
      available on VFs and so the VFs fail to detect qnq mode. This causes
      vlan traffic to not work.
      
      The fix is to use the the adapter->function_mode value queried via
      QUERY_FIRMWARE_CONFIG cmd on both PFs and VFs to detect the qnq mode.
      
      Also QNQ_MODE was incorrectly named FLEX10_MODE; correcting that too as the
      fix reads much better with the name change.
      
      Fixes: f93f160b
      
       ("refactor multi-channel config code for Skyhawk-R chip")
      Signed-off-by: default avatarSuresh Reddy <Suresh.Reddy@emulex.com>
      Signed-off-by: default avatarSathya Perla <sathya.perla@emulex.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      66064dbc
  17. 22 Jun, 2014 2 commits
  18. 21 Jun, 2014 1 commit
  19. 19 Jun, 2014 1 commit
    • Prashant Sreedharan's avatar
      tg3: Clear NETIF_F_TSO6 flag before doing software GSO · 40c1deaf
      Prashant Sreedharan authored
      Commit d3f6f3a1
      
       ("tg3: Prevent page
      allocation failure during TSO workaround") modified driver logic
      to use tg3_tso_bug() for any TSO fragment that hits hardware bug
      conditions thus the patch increased the scope of work for tg3_tso_bug()
      to cover devices that support NETIF_F_TSO6 as well. Prior to the
      patch, tg3_tso_bug() would only be used on devices supporting
      NETIF_F_TSO.
      
      A regression was introduced for IPv6 packets requiring the workaround.
      To properly perform GSO on SKBs with TCPV6 gso_type, we need to call
      skb_gso_segment() with NETIF_F_TSO6 feature flag cleared, or the
      function will return NULL and cause a kernel oops as tg3 is not handling
      a NULL return value. This patch fixes the problem.
      Signed-off-by: default avatarPrashant Sreedharan <prashant@broadcom.com>
      Signed-off-by: default avatarMichael Chan <mchan@broadcom.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      40c1deaf
  20. 18 Jun, 2014 1 commit