[PATCH 0/2] nvme-cli: add support for an abort command with documentation

James Smart james.smart at broadcom.com
Wed Jan 24 09:26:47 PST 2018


On 1/24/2018 5:15 AM, Minwoo Im wrote:
> Or.. Is there any cases that breaks behavior of kernel by an abort
> command from user space?
>

Is it possible yes. Is it simple, no.   Depends on what the command is 
and when.  You may confuse a transport which uses aborts - and you're 
also mandating the transport peek into the pass-through command to check 
for abort so that is can honor the # of outstanding aborts supported by 
the controller.

I agree with Johannes. this is an ugly thing to do . The first question 
I had is - how do you even know what the command and its CID value is ?  
Also, many devices won't actually even do aborts.

-- james




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