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# Common utility functions to be sourced by the libftl test scripts
function get_chunk_size() {
$SPDK_EXAMPLE_DIR/identify -r "trtype:PCIe traddr:$1" \
| grep 'Logical blks per chunk' | sed 's/[^0-9]//g'
}
function get_num_group() {
$SPDK_EXAMPLE_DIR/identify -r "trtype:PCIe traddr:$1" \
| grep 'Groups' | sed 's/[^0-9]//g'
}
function get_num_pu() {
$SPDK_EXAMPLE_DIR/identify -r "trtype:PCIe traddr:$1" \
| grep 'PUs' | sed 's/[^0-9]//g'
}
function has_separate_md() {
local md_type
md_type=$($SPDK_EXAMPLE_DIR/identify -r "trtype:PCIe traddr:$1" \
| grep 'Metadata Transferred' | cut -d: -f2)
if [[ "$md_type" =~ Separate ]]; then
return 0
else
return 1
fi
}
function create_nv_cache_bdev() {
local name=$1
local ocssd_bdf=$2
local cache_bdf=$3
local num_punits=$4
local bytes_to_mb=$((1024 * 1024))
local chunk_size
chunk_size=$(get_chunk_size $ocssd_bdf)
# We need at least 2 bands worth of data + 1 block
local size=$((2 * 4096 * chunk_size * num_punits + 1))
# Round the size up to the nearest megabyte
local size=$(((size + bytes_to_mb) / bytes_to_mb))
# Create NVMe bdev on specified device and split it so that it has the desired size
local nvc_bdev
nvc_bdev=$($rootdir/scripts/rpc.py bdev_nvme_attach_controller -b $name -t PCIe -a $cache_bdf)
$rootdir/scripts/rpc.py bdev_split_create $nvc_bdev -s $size 1
}
function gen_ftl_nvme_conf() {
jq . <<- JSON
{
"subsystems": [
{
"subsystem": "bdev",
"config": [
{
"params": {
"nvme_adminq_poll_period_us": 100
},
"method": "bdev_nvme_set_options"
}
]
}
]
}
JSON
}
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