Re: [PATCH RFC v7 12/12] hpsa: enable host_tagset and switch to MQ

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On 14/07/2020 09:06, Ming Lei wrote:
v7 is here:

https://github.com/hisilicon/kernel-dev/commits/private-topic-blk-mq-shared-tags-rfc-v7

So that should be good to test with for now.

And I was going to ask this same question about smartpqi, so can you please
let me know about this one?

Hi Ming,

smartpqi is real MQ HBA, do you need any change wrt. shared tags?

Is it really?

As I see, today it maintains a single tagset per HBA. So Hannes' change in this series seems ok. However, I do worry that mainline code may be wrong, as block layer may send can_queue * nr_hw_queues requests, when it seems the HBA can only handle can_queue requests.

Thanks,
john



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