ixgbe: recycle pages in packet split mode

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most of the time we only need 1500 bytes for a packet which means
we don't need a whole 4k page for each packet.  Share the allocation
by using a reference count to the page and giving half to two
receive descriptors.  This can enable us to use packet split mode
all the time due to the performance increase of allocating half
the pages.

Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>

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Jesse Brandeburg 2008-09-11 19:58:43 -07:00 • committed by Jeff Garzik

parent ff819cfb5d

commit 762f4c5710

2 changed files with 32 additions and 18 deletions

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1

drivers/net/ixgbe/ixgbe.h

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49

drivers/net/ixgbe/ixgbe_main.c

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