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  6. 12 Feb, 2015 1 commit
    • Shahed Shaikh's avatar
      qlcnic: Delete existing multicast MAC list before adding new · fe79fabb
      Shahed Shaikh authored
      Driver keeps adding multicast addresses without deleting removed MACs and
      worrying about adapters filter limit. This results into actual count of programmed
      multicast addresses get accumulated over the time and overruns the adapter's
      filter limit without putting device in ACCEPT_ALL_MULTI mode. This causes
      newly added multicast traffic to fail after the sequence of addition - deletion
      in certain pattern.
      
      This issue is seen only when netdev's mcast list count is less than adapters
      mcast filter limit.
      
      e.g. If adapters multicast filter limit is 38 per function
           then following sequence would result in multicast traffic failure for
           newly added MACs.
           - add less than 38 multicast MACs
           - remove previously added multicast MACs
           - add new multicast MACs (less than 38)
      Signed-off-by: default avatarShahed Shaikh <shahed.shaikh@qlogic.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      fe79fabb
  7. 05 Jun, 2014 1 commit
  8. 23 May, 2014 1 commit
    • Sucheta Chakraborty's avatar
      net-next:v4: Add support to configure SR-IOV VF minimum and maximum Tx rate through ip tool. · ed616689
      Sucheta Chakraborty authored
      o min_tx_rate puts lower limit on the VF bandwidth. VF is guaranteed
        to have a bandwidth of at least this value.
        max_tx_rate puts cap on the VF bandwidth. VF can have a bandwidth
        of up to this value.
      
      o A new handler set_vf_rate for attr IFLA_VF_RATE has been introduced
        which takes 4 arguments:
        netdev, VF number, min_tx_rate, max_tx_rate
      
      o ndo_set_vf_rate replaces ndo_set_vf_tx_rate handler.
      
      o Drivers that currently implement ndo_set_vf_tx_rate should now call
        ndo_set_vf_rate instead and reject attempt to set a minimum bandwidth
        greater than 0 for IFLA_VF_TX_RATE when IFLA_VF_RATE is not yet
        implemented by driver.
      
      o If user enters only one of either min_tx_rate or max_tx_rate, then,
        userland should read back the other value from driver and set both
        for IFLA_VF_RATE.
        Drivers that have not yet implemented IFLA_VF_RATE should always
        return min_tx_rate as 0 when read from ip tool.
      
      o If both IFLA_VF_TX_RATE and IFLA_VF_RATE options are specified, then
        IFLA_VF_RATE should override.
      
      o Idea is to have consistent display of rate values to user.
      
      o Usage example: -
      
        ./ip link set p4p1 vf 0 rate 900
      
        ./ip link show p4p1
        32: p4p1: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN mode
        DEFAULT qlen 1000
          link/ether 00:0e:1e:08:b0:f0 brd ff:ff:ff:ff:ff:ff
          vf 0 MAC 3e:a0:ca:bd:ae:5a, tx rate 900 (Mbps), max_tx_rate 900Mbps
          vf 1 MAC f6:c6:7c:3f:3d:6c
          vf 2 MAC 56:32:43:98:d7:71
          vf 3 MAC d6:be:c3:b5:85:ff
          vf 4 MAC ee:a9:9a:1e:19:14
          vf 5 MAC 4a:d0:4c:07:52:18
          vf 6 MAC 3a:76:44:93:62:f9
          vf 7 MAC 82:e9:e7:e3:15:1a
      
        ./ip link set p4p1 vf 0 max_tx_rate 300 min_tx_rate 200
      
        ./ip link show p4p1
        32: p4p1: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN mode
        DEFAULT qlen 1000
          link/ether 00:0e:1e:08:b0:f0 brd ff:ff:ff:ff:ff:ff
          vf 0 MAC 3e:a0:ca:bd:ae:5a, tx rate 300 (Mbps), max_tx_rate 300Mbps,
          min_tx_rate 200Mbps
          vf 1 MAC f6:c6:7c:3f:3d:6c
          vf 2 MAC 56:32:43:98:d7:71
          vf 3 MAC d6:be:c3:b5:85:ff
          vf 4 MAC ee:a9:9a:1e:19:14
          vf 5 MAC 4a:d0:4c:07:52:18
          vf 6 MAC 3a:76:44:93:62:f9
          vf 7 MAC 82:e9:e7:e3:15:1a
      
        ./ip link set p4p1 vf 0 max_tx_rate 600 rate 300
      
        ./ip link show p4p1
        32: p4p1: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN mode
        DEFAULT qlen 1000
          link/ether 00:0e:1e:08:b0:f brd ff:ff:ff:ff:ff:ff
          vf 0 MAC 3e:a0:ca:bd:ae:5, tx rate 600 (Mbps), max_tx_rate 600Mbps,
          min_tx_rate 200Mbps
          vf 1 MAC f6:c6:7c:3f:3d:6c
          vf 2 MAC 56:32:43:98:d7:71
          vf 3 MAC d6:be:c3:b5:85:ff
          vf 4 MAC ee:a9:9a:1e:19:14
          vf 5 MAC 4a:d0:4c:07:52:18
          vf 6 MAC 3a:76:44:93:62:f9
          vf 7 MAC 82:e9:e7:e3:15:1a
      Signed-off-by: default avatarSucheta Chakraborty <sucheta.chakraborty@qlogic.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      ed616689
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