s390/qeth: speed-up L3 IQD xmit

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This implements a new xmit path for L3 HiperSockets, which carves the
HW header from skb headroom instead of allocating it from the hdr cache.
It also adds NETIF_F_SG support.

The delta in qeth_l3_xmit() is all just removal of IQD-specific code and
some minor consolidation.

Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Julian Wiedmann 2018-07-11 17:42:46 +02:00 • committed by David S. Miller

parent ea1d4a0c7f

commit a647a02512

1 changed files with 128 additions and 83 deletions

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drivers/s390/net/qeth_l3_main.c

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