[PATCH v8 03/16] nvme: Added a newsysfs attribute appid_store

[Hannes Reinecke]

On 3/4/21 6:27 AM, Muneendra wrote:
> Added a new sysfs attribute appid_store under
> /sys/class/fc/fc_udev_device/*
> 
> With this new interface the user can set the application identfier
> in  the blkcg associted with cgroup id.
> 
> Once the application identifer has set with this interface it allows
> identification of traffic sources at an individual cgroup based
> Applications (ex:virtual machine (VM))level in both host and
> fabric infrastructure(FC).
> 
> Below is the interface provided to set the app_id
> 
> echo "<cgroupid>:<appid>" >> /sys/class/fc/fc_udev_device/appid_store
> echo "457E:100000109b521d27" >> /sys/class/fc/fc_udev_device/appid_store
> 
> Signed-off-by: Muneendra <muneendra.kumar at broadcom.com>
> 
> ---
> v8:
> No change
> 
> v7:
> No change
> 
> v6:
> No change
> 
> v5:
> Replaced APPID_LEN with FC_APPID_LEN
> 
> v4:
> No change
> 
> v3:
> Replaced blkcg_set_app_identifier function with blkcg_set_fc_appid
> 
> v2:
> New Patch
> ---
>   drivers/nvme/host/fc.c | 73 +++++++++++++++++++++++++++++++++++++++++-
>   1 file changed, 72 insertions(+), 1 deletion(-)
> 
Reviewed-by: Hannes Reinecke <hare at suse.de>

Cheers,

Hannes
-- 
Dr. Hannes Reinecke                Kernel Storage Architect
hare at suse.de                              +49 911 74053 688
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