[SPDK] Re: how to use the OCSSD bdev in the qemu by writi ng my own program？

Hi George,

In order to use FTL with emulated OCSSD drive in QEMU you need to get QEMU from this branch: https://github.com/spdk/qemu/tree/spdk-3.0.0
Please refer to section "FTL usage with OCSSD nvme bdev" and "Configuring QEMU " in https://spdk.io/doc/ftl.html

In "Configuring SPDK" section you have example how to create FTL bdev.

You can also look in spdk/test/ftl/ directory for examples how to use ocssd bdev with fio or bdevperf.

Thanks,
Wojtek

-----Original Message-----
From: ruizhang1230(a)buaa.edu.cn <ruizhang1230(a)buaa.edu.cn> 
Sent: Wednesday, May 27, 2020 15:10
To: spdk(a)lists.01.org
Subject: [SPDK] how to use the OCSSD bdev in the qemu by writing my own program？

Dear all,
     I have followed the steps which described by the web site https://spdk.io/doc/ftl.html. But i still do not know how to use the OCSSD bdev in the qemu by writing my own program. There is no example code that i can learn from. So can you give me a example code?

Thanks,

George
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