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| author | Jesse Brandeburg <jesse.brandeburg@intel.com> | 2009-02-25 00:37:31 (GMT) |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2009-02-25 00:37:31 (GMT) |
| commit | 32344a394029baeca5bcc9fa839694b23a82cc64 (patch) | |
| tree | 47360c3dd12fcc7aa100547ee3becbe9d0961a3d /drivers/net/ipg.h | |
| parent | c7e4358ae8e49f85a4d528366046da26b36a712f (diff) | |
| download | linux-32344a394029baeca5bcc9fa839694b23a82cc64.tar.xz | |
ixbge: fix bug when using large pages and jumbo frames
it was pointed out on the list that ixgbe was failing when using 64kB pages
and large 16kB MTU.
since with a 64kB PAGE_SIZE MAX_SKB_FRAGS = 3, the way the driver was
configuring page usage was assuming 2kB is half a page, and was only
ever dmaing that much data to a half page.
(16kB - header size) / 2048 = 7 or 8 pages, which would far exceed 3
adjust the driver to account for these large pages, the hardware can
support DMA to up to 16kB for each descriptor.
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ipg.h')
0 files changed, 0 insertions, 0 deletions