WRITE/READ failure

[sooyun802]

I am now using two NAND modules with the Cosmos+ board.

With the latest firmware, a pblk target is successfully created.
However, when I executed the fio benchmark, write failure occurs and the device doesn't seem to be sending any responses back to the host.

This is the job file I used to run fio with.

// test.fio
[global]
bs=4m
direct=1
filename=/dev/temp_tg
numjobs=4
size=4g

[job1]
rw=randwrite

I wondered if the kernel version I was using may be too high, so I tried again with another kernel version (v4.16.15).
With this kernel version, it couldn't even create a pblk target.

[choehg]

Hi,

Please find the OCSSD firmware and Vivado H/W design at the link below:
https://drive.google.com/file/d/1XA1_jHzxDxjt3gM0d3xLqa5SW5vu2bua/view?usp=sharing

Try with linux kernel 4.16.15.

Follow the steps below:

sudo nvme list
sudo nvme lnvm list
sudo nvme lnvm-diag-bbtbl /dev/nvme0n1 -c 0
sudo nvme lnvm init -d nvme0n1
sudo insmod /lib/modules/4.16.15-041615-generic/kernel/drivers/lightnvm/pblk.ko
sudo nvme lnvm create -d nvme0n1 -b 0 -e 63 -n temp_tg -t pblk -f
sudo fio test.fio