• Francois Romieu's avatar
    via-velocity: remove the bounce buffers · 580a6902
    Francois Romieu authored
    Executive summary: the bounce buffers are in my way
    
    - they use something like a 64 * 1500 bytes area of PCI
      consistent area
    - they are not resized when the MTU changes
    - they are used
      - to hand-pad undersized packets. skb_pad anyone ?
      - to linearize fragmented skbs whose fragment count
        goes beyond the 7 fragments hardware limit in order
        to claim scatter-gather support
    
    Actually the SG code is commented out and I wonder if it
    could not be implemented (ab-)using the large send feature
    of the chipset since the latter should support some
    multi-descriptor packet transmitting.
    Signed-off-by: default avatarFrancois Romieu <romieu@fr.zoreil.com>
    Fixed-by: default avatarSéguier Régis <rseguier@e-teleport.net>
    Signed-off-by: default avatarJeff Garzik <jgarzik@redhat.com>
    580a6902
via-velocity.h 42.9 KB