linux/drivers/s390/net
Ursula Braun 243f750fc6 qeth: do not limit number of gso segments
To reduce the need of skb_linearize() calls, gso_max_segs of qeth
net_devices had been limited according to the maximum number of qdio SBAL
elements. But a gso segment cannot be larger than the mtu-size, while an
SBAL element can contain up to 4096 bytes. The gso_max_segs limitation
limits the maximum packet size given to the qeth driver. Performance
measurements with tso-enabled qeth network interfaces and mtu-size 1500
showed, that the disadvantage of smaller packets is much more severe than
the advantage of fewer skb_linearize() calls.
This patch gets rid of the gso_max_segs limitations in the qeth driver.

Signed-off-by: Ursula Braun <ubraun@linux.vnet.ibm.com>
Reviewed-by: Thomas Richter <tmricht@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-16 04:29:14 -04:00
..
ctcm_dbug.c s390/s390dbf: use debug_level_enabled() where applicable 2013-10-24 17:16:54 +02:00
ctcm_dbug.h s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
ctcm_fsms.c s390/ctcm, netiucv: migrate variables to handle y2038 problem 2015-01-17 23:54:59 -05:00
ctcm_fsms.h s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
ctcm_main.c treewide: replace dev->trans_start update with helper 2016-05-04 14:16:49 -04:00
ctcm_main.h s390/ctcm, netiucv: migrate variables to handle y2038 problem 2015-01-17 23:54:59 -05:00
ctcm_mpc.c treewide: replace dev->trans_start update with helper 2016-05-04 14:16:49 -04:00
ctcm_mpc.h s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
ctcm_sysfs.c s390/ctcm, netiucv: migrate variables to handle y2038 problem 2015-01-17 23:54:59 -05:00
fsm.c
fsm.h
Kconfig s390: remove claw driver 2015-02-28 23:38:29 -05:00
lcs.c s390: Use pr_warn instead of pr_warning 2016-03-07 13:12:04 +01:00
lcs.h s390/s390dbf: use debug_level_enabled() where applicable 2013-10-24 17:16:54 +02:00
Makefile s390: remove claw driver 2015-02-28 23:38:29 -05:00
netiucv.c treewide: replace dev->trans_start update with helper 2016-05-04 14:16:49 -04:00
qeth_core_main.c qeth: check not more than 16 SBALEs on the completion queue 2016-09-16 04:29:13 -04:00
qeth_core_mpc.c qeth: OSA version of SETBRIDGEPORT command 2015-05-18 12:14:17 -04:00
qeth_core_mpc.h qeth: OSA version of SETBRIDGEPORT command 2015-05-18 12:14:17 -04:00
qeth_core_sys.c qeth: omit outbound queue 3 for unicast packets in Priority Queuing on HiperSockets 2016-06-16 22:16:13 -07:00
qeth_core.h qeth: restore device features after recovery 2016-09-16 04:29:13 -04:00
qeth_l2_main.c qeth: do not limit number of gso segments 2016-09-16 04:29:14 -04:00
qeth_l2_sys.c qeth: no write permission for readonly sysattr 2015-09-21 16:03:04 -07:00
qeth_l2.h qeth: optimize IP handling in rx_mode callback 2016-06-16 22:16:12 -07:00
qeth_l3_main.c qeth: do not limit number of gso segments 2016-09-16 04:29:14 -04:00
qeth_l3_sys.c s390/qeth: use ip_lock for hsuid configuration 2016-09-16 04:29:13 -04:00
qeth_l3.h qeth: optimize IP handling in rx_mode callback 2016-06-16 22:16:12 -07:00
smsgiucv_app.c
smsgiucv.c s390/iucv: do not use arrays as argument 2015-09-21 16:03:04 -07:00
smsgiucv.h s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00