tree bd85aaf1b89ec65b6034aa2675f0051bc816e838
parent c297977ec18deb36b2c0a5ee57101f7ab736ec00
author Emil Tantilov <emil.s.tantilov@intel.com> 1343265684 +0000
committer David S. Miller <davem@davemloft.net> 1343338191 -0700

ixgbe: fix panic while dumping packets on Tx hang with IOMMU

This patch resolves a "BUG: unable to handle kernel paging request at ..."
oops while dumping packet data. The issue occurs with IOMMU enabled due to
the address provided by phys_to_virt().

This patch makes use of skb->data on Tx and the virtual address of the pages
allocated for Rx.

Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>