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spdk: Enable vfio for non-privileged user.

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Change-Id: I72498ed727058e472b14c8ca8ee95b5858947afe
Signed-off-by: Cunyin Chang <cunyin.chang@intel.com>
This commit is contained in:
Cunyin Chang 2016-04-06 11:03:28 +08:00 committed by Daniel Verkamp
parent c83f9378da
commit 7b25f04c43
1 changed files with 40 additions and 2 deletions
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42
scripts/setup.sh
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@ -32,6 +32,11 @@ function linux_bind_driver() {
echo "$ven_dev_id" > "/sys/bus/pci/drivers/$driver_name/new_id" 2> /dev/null || true
echo "$bdf" > "/sys/bus/pci/drivers/$driver_name/bind" 2> /dev/null || true
iommu_group=$(basename $(readlink -f /sys/bus/pci/devices/$bdf/iommu_group))
if [ -e "/dev/vfio/$iommu_group" ]; then
chown "$username" "/dev/vfio/$iommu_group"
fi
}
function configure_linux {
@ -69,6 +74,29 @@ function configure_linux {
mount -t hugetlbfs nodev /mnt/huge
fi
echo "$NRHUGE" > /proc/sys/vm/nr_hugepages
if [ "$driver_name" = "vfio-pci" ]; then
chown "$username" /dev/hugepages
MEMLOCK_AMNT=`ulimit -l`
if [ "$MEMLOCK_AMNT" != "unlimited" ] ; then
MEMLOCK_MB=`expr $MEMLOCK_AMNT / 1024`
echo ""
echo "Current user memlock limit: ${MEMLOCK_MB} MB"
echo ""
echo "This is the maximum amount of memory you will be"
echo "able to use with DPDK and VFIO if run as current user."
echo -n "To change this, please adjust limits.conf memlock "
echo "limit for current user."
if [ $MEMLOCK_AMNT -lt 65536 ] ; then
echo ""
echo "## WARNING: memlock limit is less than 64MB"
echo -n "## DPDK with VFIO may not be able to initialize "
echo "if run as current user."
fi
fi
fi
}
function reset_linux {
@ -121,11 +149,22 @@ function reset_freebsd {
NRHUGE=1024
mode=$1
username=$1
mode=$2
if [ "$username" = "reset" -o "$username" = "config" ]; then
mode="$username"
username=""
fi
if [ "$mode" == "" ]; then
mode="config"
fi
if [ "$username" = "" ]; then
username=`logname`
fi
if [ `uname` = Linux ]; then
if [ "$mode" == "config" ]; then
configure_linux
@ -139,4 +178,3 @@ else
reset_freebsd
fi
fi