diff options
| author | Avinash JD <avinash.dayanand@intel.com> | 2020-05-07 17:41:00 -0700 |
|---|---|---|
| committer | Jeff Kirsher <jeffrey.t.kirsher@intel.com> | 2020-05-21 22:10:03 -0700 |
| commit | 610ed0e93e7dd107afc2398d54de6b6fe9513f8d (patch) | |
| tree | ef649cce1e2175f1b9e2024631015693a538297f /drivers/net/ethernet/intel/ice/ice_dcb_lib.h | |
| parent | 01b5e89aab498dad5a38d04a71beca2b562d9449 (diff) | |
ice: Don't reset and rebuild for Tx timeout on PFC enabled queue
When there's a Tx timeout for a queue which belongs to a PFC enabled TC,
then it's not because the queue is hung but because PFC is in action.
In PFC, peer sends a pause frame for a specified period of time when its
buffer threshold is exceeded (due to congestion). Netdev on the other
hand checks if ACK is received within a specified time for a TX packet, if
not, it'll invoke the tx_timeout routine.
Signed-off-by: Avinash JD <avinash.dayanand@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Diffstat (limited to 'drivers/net/ethernet/intel/ice/ice_dcb_lib.h')
| -rw-r--r-- | drivers/net/ethernet/intel/ice/ice_dcb_lib.h | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/drivers/net/ethernet/intel/ice/ice_dcb_lib.h b/drivers/net/ethernet/intel/ice/ice_dcb_lib.h index 37680e815b02..7c42324494d2 100644 --- a/drivers/net/ethernet/intel/ice/ice_dcb_lib.h +++ b/drivers/net/ethernet/intel/ice/ice_dcb_lib.h @@ -17,6 +17,8 @@ void ice_dcb_rebuild(struct ice_pf *pf); u8 ice_dcb_get_ena_tc(struct ice_dcbx_cfg *dcbcfg); u8 ice_dcb_get_num_tc(struct ice_dcbx_cfg *dcbcfg); +void ice_vsi_set_dcb_tc_cfg(struct ice_vsi *vsi); +bool ice_is_pfc_causing_hung_q(struct ice_pf *pf, unsigned int txqueue); u8 ice_dcb_get_tc(struct ice_vsi *vsi, int queue_index); int ice_pf_dcb_cfg(struct ice_pf *pf, struct ice_dcbx_cfg *new_cfg, bool locked); @@ -32,6 +34,20 @@ void ice_dcb_process_lldp_set_mib_change(struct ice_pf *pf, struct ice_rq_event_info *event); void ice_vsi_cfg_netdev_tc(struct ice_vsi *vsi, u8 ena_tc); + +/** + * ice_find_q_in_range + * @low: start of queue range for a TC i.e. offset of TC + * @high: start of queue for next TC + * @tx_q: hung_queue/tx_queue + * + * finds if queue 'tx_q' falls between the two offsets of any given TC + */ +static inline bool ice_find_q_in_range(u16 low, u16 high, unsigned int tx_q) +{ + return (tx_q >= low) && (tx_q < high); +} + static inline void ice_set_cgd_num(struct ice_tlan_ctx *tlan_ctx, struct ice_ring *ring) { @@ -79,6 +95,13 @@ ice_tx_prepare_vlan_flags_dcb(struct ice_ring __always_unused *tx_ring, return 0; } +static inline bool +ice_is_pfc_causing_hung_q(struct ice_pf __always_unused *pf, + unsigned int __always_unused txqueue) +{ + return false; +} + #define ice_update_dcb_stats(pf) do {} while (0) #define ice_pf_dcb_recfg(pf) do {} while (0) #define ice_vsi_cfg_dcb_rings(vsi) do {} while (0) |