1. 16 7月, 2015 6 次提交
    • T
      ibmveth: add support for TSO6 · 07e6a97d
      Thomas Falcon 提交于
      This patch adds support for a new method of signalling the firmware
      that TSO packets are being sent. The new method removes the need to
      alter the ip and tcp checksums and allows TSO6 support.
      Signed-off-by: NThomas Falcon <tlfalcon@linux.vnet.ibm.com>
      Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      07e6a97d
    • C
      net: qlcnic: Deletion of unnecessary memset · e29dd443
      Christophe Jaillet 提交于
      There is no need to memset memory allocated with vzalloc.
      Signed-off-by: NChristophe JAILLET <christophe.jaillet@wanadoo.fr>
      Acked-by: NShahed Shaikh <shahed.shaikh@qlogic.com>
      Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      e29dd443
    • C
      gianfar: Add paged allocation and Rx S/G · 75354148
      Claudiu Manoil 提交于
      The eTSEC h/w is capable of scatter/gather on the receive side
      too if MAXFRM > MRBLR, when the allowed maximum Rx frame size
      is set to be greater than the maximum Rx buffer size (MRBLR).
      It's about time the driver makes use of this h/w capability,
      by supporting fixed buffer sizes and Rx S/G.
      
      The buffer size given to eTSEC for reception is fixed to
      1536B (must be multiple of 64), which is the same default
      buffer size as before, used to accommodate standard MTU
      (1500B) size frames.  As before, eTSEC can receive frames of
      up to 9600B.  Individual Rx buffers are mapped to page halves
      (page size for eTSEC systems is 4KB).  The skb is built around
      the first buffer of a frame (using build_skb()).  In case the
      frame spans multiple buffers, the trailing buffers are added
      as Rx fragments to the skb.  The last buffer in frame is marked
      by the L status flag.  A mechanism is in place to reuse the pages
      owned by the driver (for Rx) for subsequent receptions.
      
      Supporting fixed size buffers allows the implementation of Rx S/G,
      which in turn removes the memory pressure issues the driver had
      before when MTU was set for jumbo frame reception.
      Also, in most cases, the Rx path becomes faster due to Rx page
      reusal, since the overhead of allocating new rx buffers is removed
      from the fast path.
      Signed-off-by: NClaudiu Manoil <claudiu.manoil@freescale.com>
      Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      75354148
    • C
      gianfar: Use ndev, more Rx path cleanup · f23223f1
      Claudiu Manoil 提交于
      Use "ndev" instead of "dev", as the rx queue back pointer
      to a net_device struct, to avoid name clashing with a
      "struct device" reference.  This prepares the addition of a
      "struct device" back pointer to the rx queue structure.
      
      Remove duplicated rxq registration in the process.
      Move napi_gro_receive() outside gfar_process_frame().
      Signed-off-by: NClaudiu Manoil <claudiu.manoil@freescale.com>
      Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      f23223f1
    • C
      gianfar: Fix and cleanup rxbd status handling · f966082e
      Claudiu Manoil 提交于
      There are several (long standing) problems about how the status
      field of the rx buffer descriptor (rxbd) is currently handled on
      the error path:
      - too many unnecessary 16bit reads of the two halves of the rxbd
      status field (32bit), also resulting in overuse of endianness
      convesion macros;
      - "bdp->status = RXBD_LARGE" makes no sense, since the "large"
      flag is read only (only eTSEC can write it), and trying to clear
      the other status bits is also error prone in this context
      (most of the rx status bits are read only anyway).
      
      This is fixed with a single 32bit read of the "status" field,
      and then the appropriate 16bit shifting is applied to access
      the various status bits or the rx frame length. Also corrected
      the use of the RXBD_LARGE flag.
      
      Additional fix:
      "rx_over_errors" stat is incremented instead of "rx_crc_errors"
      in case of RXBD_OVERRUN occurrence.
      Signed-off-by: NClaudiu Manoil <claudiu.manoil@freescale.com>
      Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      f966082e
    • C
      gianfar: Bundle Rx allocation, cleanup · 76f31e8b
      Claudiu Manoil 提交于
      Use a more common consumer/ producer index design to improve
      rx buffer allocation.  Instead of allocating a single new buffer
      (skb) on each iteration, bundle the allocation of several rx
      buffers at a time.  This also opens the path for further memory
      optimizations.
      
      Remove useless check of rxq->rfbptr, since this patch touches
      rx pause frame handling code as well.  rxq->rfbptr is always
      initialized as part of Rx BD ring init.
      Remove redundant (and misleading) 'amount_pull' parameter.
      Signed-off-by: NClaudiu Manoil <claudiu.manoil@freescale.com>
      Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      76f31e8b
  2. 15 7月, 2015 17 次提交
  3. 12 7月, 2015 1 次提交
  4. 11 7月, 2015 10 次提交
  5. 10 7月, 2015 3 次提交
  6. 09 7月, 2015 3 次提交