The attached patch contains a modified scheme for allocating Tx descriptor
blocks.
More description follows.

In the old scheme, the entire Tx descriptor space was allocated in
one go. This could cause driver load to fail on systems with low(or
scattered) memory. The Tx descriptor blocks are now allocated on
per-page basis. A new structure (list_info) has been introduced in
nic_t structure to keep track of the physical and virtual addresses
of every TxD allocated this way.
Signed-off-by: Raghavendra Koushik <raghavendra.koushik@s2io.com>
Signed-off-by: Ravinandan Arakali <ravinandan.arakali@s2io.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>