Re: [f2fs-dev] [PATCH v2] f2fs: another way to set large folio by remembering inode number

Bart Van Assche <[email protected]>
Newsgroups org.kernel.vger.linux-api,net.sourceforge.lists.linux-f2fs-devel,org.kernel.vger.linux-fsdevel,org.kernel.vger.linux-kernel,org.kvack.linux-mm
Message-ID <[email protected]>
On 5/26/26 6:42 AM, Theodore Tso wrote:
>      2. Host Controller Hardware Limits (UFSHCI)
>      
> 	Transfer Queue Depth: A UFS controller supports a predefined
> 	    number of outstanding task request entries. This is often
> 	    hard-capped at 32 concurrent transfer requests (slots) by the
> 	    doorbell register array.

The above information comes from the UFSHCI 3 standard. Jaegeuk's test
setup has an UFSHCI 4.0 controller that supports one submission queue
per CPU and also one completion queue per CPU. This is an architecture
that is very similar but not identical to NVMe. Jaegeuk, please correct
me if I got anything wrong.

Bart.
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