1
0
Fork 0
alistair23-linux/drivers/infiniband/ulp
Paolo Abeni a350eccee5 net: remove 'fallback' argument from dev->ndo_select_queue()
After the previous patch, all the callers of ndo_select_queue()
provide as a 'fallback' argument netdev_pick_tx.
The only exceptions are nested calls to ndo_select_queue(),
which pass down the 'fallback' available in the current scope
- still netdev_pick_tx.

We can drop such argument and replace fallback() invocation with
netdev_pick_tx(). This avoids an indirect call per xmit packet
in some scenarios (TCP syn, UDP unconnected, XDP generic, pktgen)
with device drivers implementing such ndo. It also clean the code
a bit.

Tested with ixgbe and CONFIG_FCOE=m

With pktgen using queue xmit:
threads		vanilla 	patched
		(kpps)		(kpps)
1		2334		2428
2		4166		4278
4		7895		8100

 v1 -> v2:
 - rebased after helper's name change

Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-03-20 11:18:55 -07:00
..
ipoib RDMA: Add and use rdma_for_each_port 2019-02-19 10:13:39 -07:00
iser IB/iser: Fix dma_nents type definition 2019-03-04 15:40:25 -04:00
isert SCSI misc on 20190306 2019-03-09 16:53:47 -08:00
opa_vnic net: remove 'fallback' argument from dev->ndo_select_queue() 2019-03-20 11:18:55 -07:00
srp 5.1 Merge Window Pull Request 2019-03-09 15:53:03 -08:00
srpt SCSI misc on 20190306 2019-03-09 16:53:47 -08:00
Makefile License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00