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hyperv/hn: Always do transmission scheduling.

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This one gives the best performance so far.

Reviewed by:	adrian
Approved by:	adrian (mentor)
MFC after:	1 week
Sponsored by:	Microsoft OSTC
Differential Revision:	https://reviews.freebsd.org/D5273
This commit is contained in:
Sepherosa Ziehau 2016-02-18 07:00:47 +00:00
parent 58f5a606fa
commit 01610d88da
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=295742
1 changed files with 7 additions and 0 deletions
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7
sys/dev/hyperv/netvsc/hv_netvsc_drv_freebsd.c
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@ -465,6 +465,13 @@ netvsc_attach(device_t dev)
hn_tx_chimney_size < sc->hn_tx_chimney_max)
sc->hn_tx_chimney_size = hn_tx_chimney_size;
/*
* Always schedule transmission instead of trying
* to do direct transmission. This one gives the
* best performance so far.
*/
sc->hn_sched_tx = 1;
ctx = device_get_sysctl_ctx(dev);
child = SYSCTL_CHILDREN(device_get_sysctl_tree(dev));