diff options
| author | Anatolii Gerasymenko <anatolii.gerasymenko@intel.com> | 2022-08-24 15:07:28 +0300 |
|---|---|---|
| committer | Tony Nguyen <anthony.l.nguyen@intel.com> | 2023-01-19 19:18:03 +0300 |
| commit | 7d8d7754e6f70eed2ed6c48ce55a4a1168b08276 (patch) | |
| tree | de6909495c48a78843a4b1ccb07268e2d0815f2c /drivers/net/ethernet/intel/ice/ice_dcb.h | |
| parent | a4f68f37e63f91ce7baa31ea3d64072f1b86aac7 (diff) | |
| download | linux-7d8d7754e6f70eed2ed6c48ce55a4a1168b08276.tar.xz | |
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.
In the case of a Pending change, LLDP MIB Change Event (opcode 0x0A01) will
contain the whole new MIB. But Get LLDP MIB (opcode 0x0A00) AQ call would
still return an old MIB, as the Pending change hasn't been applied yet.
Add ice_get_dcb_cfg_from_mib_change() function to retrieve DCBX config
from LLDP MIB Change Event's buffer for Pending changes.
Co-developed-by: Dave Ertman <david.m.ertman@intel.com>
Signed-off-by: Dave Ertman <david.m.ertman@intel.com>
Signed-off-by: Anatolii Gerasymenko <anatolii.gerasymenko@intel.com>
Tested-by: Arpana Arland <arpanax.arland@intel.com> (A Contingent worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Diffstat (limited to 'drivers/net/ethernet/intel/ice/ice_dcb.h')
| -rw-r--r-- | drivers/net/ethernet/intel/ice/ice_dcb.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/net/ethernet/intel/ice/ice_dcb.h b/drivers/net/ethernet/intel/ice/ice_dcb.h index 6abf28a14291..be34650a77d5 100644 --- a/drivers/net/ethernet/intel/ice/ice_dcb.h +++ b/drivers/net/ethernet/intel/ice/ice_dcb.h @@ -144,6 +144,8 @@ ice_aq_get_dcb_cfg(struct ice_hw *hw, u8 mib_type, u8 bridgetype, struct ice_dcbx_cfg *dcbcfg); int ice_get_dcb_cfg(struct ice_port_info *pi); int ice_set_dcb_cfg(struct ice_port_info *pi); +void ice_get_dcb_cfg_from_mib_change(struct ice_port_info *pi, + struct ice_rq_event_info *event); int ice_init_dcb(struct ice_hw *hw, bool enable_mib_change); int ice_query_port_ets(struct ice_port_info *pi, |