openstack/openstack-helm
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Merge "SRIOV: Limit number of vfs to n-1 created by default"

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Zuul 2018-10-01 07:25:40 +00:00 committed by Gerrit Code Review
commit 0f6b734946
1 changed files with 13 additions and 1 deletions
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14
neutron/templates/bin/_neutron-sriov-agent-init.sh.tpl
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@ -22,7 +22,19 @@ set -ex
if [ "x{{ $sriov.num_vfs }}" != "x" ]; then
echo "{{ $sriov.num_vfs }}" > /sys/class/net/{{ $sriov.device }}/device/sriov_numvfs
else
NUM_VFS=$(cat /sys/class/net/{{ $sriov.device }}/device/sriov_totalvfs)
#NOTE(portdirect): Many NICs have difficulty creating more than n-1 over their
# claimed limit, by default err on the side of caution and account for this
# limitation.
TOT_NUM_VFS=$(cat /sys/class/net/{{ $sriov.device }}/device/sriov_totalvfs)
if [[ "$TOT_NUM_VFS" -le "0" ]]; then
NUM_VFS="$TOT_NUM_VFS"
else
if [[ "$((TOT_NUM_VFS - 1 ))" -le "1" ]]; then
NUM_VFS=1
else
NUM_VFS="$((TOT_NUM_VFS - 1 ))"
fi
fi
echo "${NUM_VFS}" > /sys/class/net/{{ $sriov.device }}/device/sriov_numvfs
fi
{{- if $sriov.mtu }}