Re: [PATCH] scsi: pm80xx: Increase reserved tags from 8 to 128

From: Martin K. Petersen
Date: Mon Dec 09 2024 - 21:36:59 EST


On Tue, 26 Nov 2024 22:49:23 +0000, Salomon Dushimirimana wrote:

> Increase the number of reserved tags to prevent command processing
> failures when the driver is under stress. 8 reserved tags are quickly
> getting all used up leading to errors when command completions are
> delayed.
>
> The driver needs ~512 ccbs/tags for maximum I/O utilization:
> 16 (max disks) * 32 (max SATA queue depth) = ~512 ccbs/tags.
>
> [...]

Applied to 6.14/scsi-queue, thanks!

[1/1] scsi: pm80xx: Increase reserved tags from 8 to 128
https://git.kernel.org/mkp/scsi/c/b64004dbcd23

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Martin K. Petersen Oracle Linux Engineering