On 16/01/2019 02:54, Martin K. Petersen wrote:
Hi John,
Hi Martin,
So in this case I think that accessor functions are actually better
because they allow us to print a big fat warning when you twiddle
something you shouldn't post-initialization. So that's something I think
we could--and
Hi John,
>> So in this case I think that accessor functions are actually better
>> because they allow us to print a big fat warning when you twiddle
>> something you shouldn't post-initialization. So that's something I think
>> we could--and should--improve.
>>
> Sure, this is an alternative,
On 12/01/2019 02:34, Martin K. Petersen wrote:
John,
So how about just drop these APIs and let the user set the shost
protection parameters directly, like other shost parameters,
The protection interfaces here obviously predate the block layer
allocation changes that made this particular
John,
> So how about just drop these APIs and let the user set the shost
> protection parameters directly, like other shost parameters,
The protection interfaces here obviously predate the block layer
allocation changes that made this particular issue pop up.
> which should make it a bit
On 09/01/2019 18:41, Christoph Hellwig wrote:
This looks good. I wonder if there is any good way to prevent other
drivers from picking up this bug byt using a better interface, but
that should not delay your fix.
.
I noticed that hisi_sas has this same problem but I forgot to fix it.
So
This looks good. I wonder if there is any good way to prevent other
drivers from picking up this bug byt using a better interface, but
that should not delay your fix.
Logan,
> To prevent this, the calls to scsi_host_set_prot() are moved into
> isci_host_alloc() before the call to scsi_add_host(). Out of caution,
> also move the similar call to scsi_host_set_guard().
Applied to 5.0/scsi-fixes. Thanks much!
--
Martin K. Petersen Oracle Linux
On 1/8/19 1:50 PM, Logan Gunthorpe wrote:
> scsi_mq_setup_tags(), which is called by scsi_add_host(), calculates
> the command size to allocate based on the prot_capabilities. In the
> isci driver, scsi_host_set_prot() is called after scsi_add_host()
> so the command size gets calculated to be
Logan Gunthorpe writes:
> scsi_mq_setup_tags(), which is called by scsi_add_host(), calculates
> the command size to allocate based on the prot_capabilities. In the
> isci driver, scsi_host_set_prot() is called after scsi_add_host()
> so the command size gets calculated to be smaller than it
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