tree 752b0783203f4131dbe2d9af945f5090003646e2
parent 0d681b27b0efc962a3038a316e78373de7bfe1ce
author Matt Carlson <mcarlson@broadcom.com> 1311776450 +0000
committer David S. Miller <davem@davemloft.net> 1311831571 -0700

tg3: Add partial fragment unmapping code

The following patches are going to break skb fragments into smaller
sizes.  This patch attempts to make the change easier to digest by only
addressing the skb teardown portion.

The patch modifies the driver to skip over any BDs that have a flag set
that indicates the BD isn't the beginning of an skb fragment.  Such BDs
were a result of segmentation and do not need a pci_unmap_page() call.

Signed-off-by: Matt Carlson <mcarlson@broadcom.com>
Reviewed-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>