1. 27 Aug, 2008 25 commits
  2. 25 Aug, 2008 12 commits
  3. 23 Aug, 2008 3 commits
    • Lennert Buytenhek's avatar
      c4560318
    • Lennert Buytenhek's avatar
      mv643xx_eth: enforce multiple-of-8-bytes receive buffer size restriction · abe78717
      Lennert Buytenhek authored
      
      
      The mv643xx_eth hardware ignores the lower three bits of the buffer
      size field in receive descriptors, causing the reception of full-sized
      packets to fail at some MTUs.  Fix this by rounding the size of
      allocated receive buffers up to a multiple of eight bytes.
      
      While we are at it, add a bit of extra space to each receive buffer so
      that we can handle multiple vlan tags on ingress.
      Signed-off-by: default avatarLennert Buytenhek <buytenh@marvell.com>
      abe78717
    • Lennert Buytenhek's avatar
      mv643xx_eth: fix NULL pointer dereference in rxq_process() · 9e1f3772
      Lennert Buytenhek authored
      
      
      When we are low on memory, the assumption that every descriptor in the
      receive ring will have an skbuff associated with it does not hold.
      
      rxq_process() was assuming that if the receive descriptor it is working
      on is not owned by the hardware, it can safely be processed and handed
      to the networking stack.  But a descriptor in the receive ring not being
      owned by the hardware can also happen when we are low on memory and did
      not manage to refill the receive ring fully.
      
      This patch changes rxq_process()'s bailout condition from "the first
      receive descriptor to be processed is owned by the hardware" to "the
      first receive descriptor to be processed is owned by the hardware OR
      the number of valid receive descriptors in the ring is zero".
      Signed-off-by: default avatarLennert Buytenhek <buytenh@marvell.com>
      9e1f3772