Re: [PATCH v4] scsi: support packing multi-segment in UNMAP command

[Bart Van Assche]

On 6/15/22 18:36, Chao Yu wrote:
> As SCSI SBC4 specification section 5.30.2 describes that it can
> support unmapping one or more LBA range in single UNMAP command.
>
> However, previously we only pack one LBA range in UNMAP command
> by default no matter device gives the block limits that says it
> can support unmapping multiple LBA ranges with a single UNMAP
> command.
>
> This patch sets max_discard_segments config according to block
> limits of device, and supports unmapping multiple LBA ranges with
> a single UNMAP command.

Reviewed-by: Bart Van Assche <bvanassche@xxxxxxx>