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setup.sh: add help message

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```
./scripts/setup.sh help
```

Change-Id: I4804f032861f949be3e541456f1df55b64937909
Signed-off-by: Dariusz Stojaczyk <dariuszx.stojaczyk@intel.com>
Reviewed-on: https://review.gerrithub.io/394807
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
This commit is contained in:
Dariusz Stojaczyk 2018-01-15 19:49:30 +01:00 committed by Jim Harris
parent da7e3bb880
commit 5f247660d7
1 changed files with 53 additions and 0 deletions
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53
scripts/setup.sh
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@ -5,6 +5,51 @@ set -e
rootdir=$(readlink -f $(dirname $0))/..
source "$rootdir/scripts/common.sh"
function usage()
{
if [ `uname` = Linux ]; then
options="[config|reset|status|help]"
else
options="[config|reset|help]"
fi
[[ ! -z $2 ]] && ( echo "$2"; echo ""; )
echo "Helper script for allocating hugepages and binding NVMe, I/OAT and Virtio devices to"
echo "a generic VFIO kernel driver. If VFIO is not available on the system, this script will"
echo "fall back to UIO. NVMe and Virtio devices with active mountpoints will be ignored."
echo "All hugepage operations use default hugepage size on the system (hugepagesz)."
echo "Usage: $(basename $1) $options"
echo
echo "$options - as following:"
echo "config Default mode. Allocate hugepages and bind PCI devices."
echo "reset Rebind PCI devices back to their original drivers."
echo " Also cleanup any leftover spdk files/resources."
echo " Hugepage memory size will remain unchanged."
if [ `uname` = Linux ]; then
echo "status Print status of all SPDK-compatible devices on the system."
fi
echo "help Print this help message."
echo
echo "The following environment variables can be specified."
echo "HUGEMEM Size of hugepage memory to allocate (in MB). 2048 by default."
echo " For NUMA systems, the hugepages will be evenly distributed"
echo " between CPU nodes"
echo "NRHUGE Number of hugepages to allocate. This variable overwrites HUGEMEM."
echo "HUGENODE Specific NUMA node to allocate hugepages on. To allocate"
echo " hugepages on multiple nodes run this script multiple times -"
echo " once for each node."
echo "NVME_WHITELIST Whitespace separated list of NVMe devices to bind."
echo " Each device must be specified as a full PCI address."
echo " E.g. NVME_WHITELIST=\"0000:01:00.0 0000:02:00.0\""
echo " To blacklist all NVMe devices use a non-valid PCI address."
echo " E.g. NVME_WHITELIST=\"none\""
echo " If empty or unset, all PCI devices will be bound."
echo "SKIP_PCI Setting this variable to non-zero value will skip all PCI operations."
echo "TARGET_USER User that will own hugepage mountpoint directory and vfio groups."
echo " By default the current user will be used."
exit 0
}
function nvme_whitelist_contains() {
for i in ${NVME_WHITELIST[@]}
do
@ -400,11 +445,19 @@ if [ `uname` = Linux ]; then
reset_linux
elif [ "$mode" == "status" ]; then
status_linux
elif [ "$mode" == "help" ]; then
usage $0
else
usage $0 "Invalid argument '$mode'"
fi
else
if [ "$mode" == "config" ]; then
configure_freebsd
elif [ "$mode" == "reset" ]; then
reset_freebsd
elif [ "$mode" == "help" ]; then
usage $0
else
usage $0 "Invalid argument '$mode'"
fi
fi