Re: [PATCH v4 02/16] ufs: core: Probe for ext_iid support

From: Bart Van Assche
Date: Wed Nov 09 2022 - 16:00:29 EST


On 11/9/22 11:41, Asutosh Das wrote:
Task Tag is limited to 8 bits and this restricts the number
of active IOs to 255.
In Multi-circular queue mode, this may not be enough.
The specification provides EXT_IID which can be used to increase
the number of IOs if the UFS device and UFSHC support it.
This patch adds support to probe for ext_iid support in
ufs device and UFSHC.

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