Re: [PATCH 3/4] pm80xx : Increase the number of outstanding IO supported

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On 25/09/2020 07:16, Viswas G wrote:
From: Viswas G<Viswas.G@xxxxxxxxxxxxx>

Increasing the number of Outstanding IOs from 256 to 1024.
CCB and tag are allocated according to outstanding IOs.
Also updating the can_queue value (max_out_io - PM8001_RESERVE_SLOT)
to scsi midlayer.

Signed-off-by: Viswas G<Viswas.G@xxxxxxxxxxxxx>
Signed-off-by: Ruksar Devadi<Ruksar.devadi@xxxxxxxxxxxxx>

Any reason you can't also use the request->tag (instead of generating tags internally) for added performance boost? Many other LLDDs do this, as managing tags has a performance overhead.

Thanks,
John




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