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| author | Tsotne Chakhvadze <tsotne.chakhvadze@intel.com> | 2022-08-24 14:07:27 +0200 |
|---|---|---|
| committer | Tony Nguyen <anthony.l.nguyen@intel.com> | 2023-01-19 08:18:03 -0800 |
| commit | a4f68f37e63f91ce7baa31ea3d64072f1b86aac7 (patch) | |
| tree | ac04eebc340eccde10993f8e9af71bbc251eabca /drivers/net/ethernet/intel/ice/ice_common.h | |
| parent | 3ef4a8c8963b29813170177899f84ffb93f1a8f1 (diff) | |
| download | lwn-a4f68f37e63f91ce7baa31ea3d64072f1b86aac7.tar.gz lwn-a4f68f37e63f91ce7baa31ea3d64072f1b86aac7.zip | |
ice: Add 'Execute Pending LLDP MIB' Admin Queue command
In DCB Willing Mode (FW managed LLDP), when the link partner changes
configuration which requires fewer TCs, the TCs that are no longer
needed are suspended by EMP FW, removed, and never resumed. This occurs
before a MIB change event is indicated to SW. The permanent suspension and
removal of these TC nodes in the scheduler prevents RDMA from being able
to destroy QPs associated with this TC, requiring a CORE reset to recover.
A new DCBX configuration change flow is defined to allow SW driver and
other SW components (RDMA) to properly adjust to the configuration
changes before they are taking effect in HW. This flow includes a
two-way handshake between EMP FW<->LAN SW<->RDMA SW.
List of changes:
- Add 'Execute Pending LLDP MIB' AQC.
- Add 'Pending Event Enable' bit.
- Add additional logic to ignore Pending Event Enable' request
while 'LLDP MIB Chnage' event is disabled.
- Add 'Execute Pending LLDP MIB' AQC sending function to FW,
which is needed to take place MIB Event change.
Signed-off-by: Tsotne Chakhvadze <tsotne.chakhvadze@intel.com>
Co-developed-by: Karen Sornek <karen.sornek@intel.com>
Signed-off-by: Karen Sornek <karen.sornek@intel.com>
Co-developed-by: Dave Ertman <david.m.ertman@intel.com>
Signed-off-by: Dave Ertman <david.m.ertman@intel.com>
Co-developed-by: Anatolii Gerasymenko <anatolii.gerasymenko@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_common.h')
| -rw-r--r-- | drivers/net/ethernet/intel/ice/ice_common.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/net/ethernet/intel/ice/ice_common.h b/drivers/net/ethernet/intel/ice/ice_common.h index 4c6a0b5c9304..22839c4f7247 100644 --- a/drivers/net/ethernet/intel/ice/ice_common.h +++ b/drivers/net/ethernet/intel/ice/ice_common.h @@ -221,6 +221,7 @@ ice_aq_set_lldp_mib(struct ice_hw *hw, u8 mib_type, void *buf, u16 buf_size, bool ice_fw_supports_lldp_fltr_ctrl(struct ice_hw *hw); int ice_lldp_fltr_add_remove(struct ice_hw *hw, u16 vsi_num, bool add); +int ice_lldp_execute_pending_mib(struct ice_hw *hw); int ice_aq_read_i2c(struct ice_hw *hw, struct ice_aqc_link_topo_addr topo_addr, u16 bus_addr, __le16 addr, u8 params, u8 *data, |