[Intel-wired-lan] [PATCH net-next v3 3/3] ice: Handle LLDP MIB Pending change

[G, GurucharanX]

> -----Original Message-----
> From: Intel-wired-lan <intel-wired-lan-bounces at osuosl.org> On Behalf Of
> Anatolii Gerasymenko
> Sent: Friday, August 12, 2022 4:54 PM
> To: intel-wired-lan at lists.osuosl.org
> Cc: Gerasymenko, Anatolii <anatolii.gerasymenko at intel.com>
> Subject: [Intel-wired-lan] [PATCH net-next v3 3/3] ice: Handle LLDP MIB
> Pending change
> 
> If the number of Traffic Classes (TC) is decreased, the FW will no longer
> remove TC nodes, but will send a pending change notification. This will allow
> RDMA to destroy corresponding Control QP markers. After RDMA finishes
> outstanding operations, the ice driver will send an execute MIB Pending
> change admin queue command to FW to finish DCB configuration change.
> 
> The FW will buffer all incoming Pending changes, so there can be only one
> active Pending change.
> 
> RDMA driver guarantees to remove Control QP markers within 5000 ms.
> Hence, LLDP response timeout txTTL (default 30 sec) will be met.
> 
> Signed-off-by: Anatolii Gerasymenko <anatolii.gerasymenko at intel.com>
> ---
> v2: Remove inline hint for ice_dcb_is_mib_change_pending()
> v3: Handle only local LLDP MIB Pending change
> ---
>  drivers/net/ethernet/intel/ice/ice_dcb_lib.c | 21 ++++++++++++++++++++
>  1 file changed, 21 insertions(+)
> 

Tested-by: Arpana Arland <arpanax.arland at intel.com> (A Contingent worker at Intel)