On 10/2/18 11:04 PM, chris.mo...@microchip.com wrote:
I'm working on LLDD for a SAS/SATA host adapter, and trying to understand how
the system handles link loss and recovery.
Say I have a device that gets recognized and attached as sd 12:0:4:0, at
/dev/sdb.
The drive goes offline temporarily,
Thanks Hannes,
After some pointers from Shane Seymour I found that the FC and SRP transport
layers
have a devloss timer, so that when a device disappears they hold on to the
target
information for a time waiting to see if it comes back. The SAS transport layer
doesn't have that feature.
The
On Thu, Oct 04, 2018 at 08:20:30AM +0300, Avri Altman wrote:
> From: Christoph Hellwig
>
> Remove the pointless task_req_upiu and task_rsp_upiu indirections,
> which are __le32 arrays always cast to given structures and just add
> the members directly. Also clean up variables names in use in
hi,
Thanks for trying to test it.
You need to elaborate not only the ufs driver, but also the bsg driver, and
some block layer patches as well.
Will reply with the full list on Sunday.
Thanks,
Avri
From: Bean Huo (beanhuo)
Sent: Friday, October 5, 2018
On Thu, Oct 04, 2018 at 08:20:32AM +0300, Avri Altman wrote:
> in preparation to send UPIU requests via bsg.
>
> Signed-off-by: Avri Altman
> Reviewed-by: Bart Van Assche
> ---
> drivers/scsi/ufs/ufs.h | 61 +
> drivers/scsi/ufs/ufshcd.c| 6
On Thu, Oct 04, 2018 at 08:20:33AM +0300, Avri Altman wrote:
> Add a bsg endpoint that supports UPIUs.
This should probably go into the subject line.
>
> For now, just provide an API to allocate and remove
> ufs-bsg node. We will use this framework to
> manage ufs devices by sending UPIU
Hi, Avri
Having patched them into v4.18 with problem free. I will test it on my own
platform.
Thanks.
>hi,
>Thanks for trying to test it.
>You need to elaborate not only the ufs driver, but also the bsg driver, and
>some block layer patches as well.
>Will reply with the full list on Sunday.
>
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