diff options
| author | Brett Creeley <brett.creeley@intel.com> | 2019-02-28 15:25:59 -0800 |
|---|---|---|
| committer | Jeff Kirsher <jeffrey.t.kirsher@intel.com> | 2019-05-02 01:21:56 -0700 |
| commit | b07833a00d70fb731bb3aba8876a56e37b549f3e (patch) | |
| tree | ef5376b786a7c5f972578c025dea53248b9e2d04 /drivers/net/ethernet/intel/ice/ice.h | |
| parent | 8d7189d266ccec6dce1a4c2dd2bde6e0d632a24c (diff) | |
ice: Add reg_idx variable in ice_q_vector structure
Every time we want to re-enable interrupts and/or write to a register
that requires an interrupt vector's hardware index we do the following:
vsi->hw_base_vector + q_vector->v_idx
This is a wasteful operation, especially in the hot path. Fix this by
adding a u16 reg_idx member to the ice_q_vector structure and make the
necessary changes to make this work.
Signed-off-by: Brett Creeley <brett.creeley@intel.com>
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@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.h')
| -rw-r--r-- | drivers/net/ethernet/intel/ice/ice.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/net/ethernet/intel/ice/ice.h b/drivers/net/ethernet/intel/ice/ice.h index 878a75182d6d..d66aad49bfd4 100644 --- a/drivers/net/ethernet/intel/ice/ice.h +++ b/drivers/net/ethernet/intel/ice/ice.h @@ -297,6 +297,7 @@ struct ice_q_vector { struct ice_vsi *vsi; u16 v_idx; /* index in the vsi->q_vector array. */ + u16 reg_idx; u8 num_ring_rx; /* total number of Rx rings in vector */ u8 num_ring_tx; /* total number of Tx rings in vector */ u8 itr_countdown; /* when 0 should adjust adaptive ITR */ @@ -403,7 +404,7 @@ static inline void ice_irq_dynamic_ena(struct ice_hw *hw, struct ice_vsi *vsi, struct ice_q_vector *q_vector) { - u32 vector = (vsi && q_vector) ? vsi->hw_base_vector + q_vector->v_idx : + u32 vector = (vsi && q_vector) ? q_vector->reg_idx : ((struct ice_pf *)hw->back)->hw_oicr_idx; int itr = ICE_ITR_NONE; u32 val; |