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authorDhananjay Phadke <dhananjay@netxen.com>2009-06-17 17:27:25 (GMT)
committerDavid S. Miller <davem@davemloft.net>2009-06-18 07:46:14 (GMT)
commitcb2107be43d2fc5eadec58b92b54bf32c00bfff3 (patch)
treedd04fda143a4a7d71b32b79b508a0566450c22c6 /net/ipv4
parentd173346040af497af22818dfc48cff369e67cf50 (diff)
downloadlinux-fsl-qoriq-cb2107be43d2fc5eadec58b92b54bf32c00bfff3.tar.xz
netxen: fix tx ring accounting
This forces every update of tx ring producer to check for availability of space for next full TSO command. Earlier firmware control commands didn't care to pause tx queue. Stop the tx queue if there's not enough space to transmit one full LSO command left on the tx ring after current transmit. This avoids returning NETDEV_TX_BUSY after checking distance between producer and consumer on every cpu. Restart the tx queue only if we have cleaned up enough tx descriptors. Signed-off-by: Dhananjay Phadke <dhananjay@netxen.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4')
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