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| author | Brett Creeley <brett.creeley@intel.com> | 2019-04-16 10:30:51 -0700 |
|---|---|---|
| committer | Jeff Kirsher <jeffrey.t.kirsher@intel.com> | 2019-05-29 03:00:53 -0700 |
| commit | e89e899f3e3213a98ccf60d832f37ecef7000a5b (patch) | |
| tree | 322af569de36adf8f52586d2c63391a3249fbb25 /drivers/net/ethernet/intel/ice/ice_lib.c | |
| parent | 3a9e32bb069435dc11e3c1b4aa7ebeda23b23e32 (diff) | |
| download | lwn-e89e899f3e3213a98ccf60d832f37ecef7000a5b.tar.gz lwn-e89e899f3e3213a98ccf60d832f37ecef7000a5b.zip | |
ice: Add a helper to trigger software interrupt
Add a new function ice_trigger_sw_intr to trigger interrupts.
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_lib.c')
| -rw-r--r-- | drivers/net/ethernet/intel/ice/ice_lib.c | 24 |
1 files changed, 18 insertions, 6 deletions
diff --git a/drivers/net/ethernet/intel/ice/ice_lib.c b/drivers/net/ethernet/intel/ice/ice_lib.c index 74008d748f3a..8db9427d863f 100644 --- a/drivers/net/ethernet/intel/ice/ice_lib.c +++ b/drivers/net/ethernet/intel/ice/ice_lib.c @@ -2019,6 +2019,19 @@ int ice_vsi_stop_rx_rings(struct ice_vsi *vsi) } /** + * ice_trigger_sw_intr - trigger a software interrupt + * @hw: pointer to the HW structure + * @q_vector: interrupt vector to trigger the software interrupt for + */ +void ice_trigger_sw_intr(struct ice_hw *hw, struct ice_q_vector *q_vector) +{ + wr32(hw, GLINT_DYN_CTL(q_vector->reg_idx), + (ICE_ITR_NONE << GLINT_DYN_CTL_ITR_INDX_S) | + GLINT_DYN_CTL_SWINT_TRIG_M | + GLINT_DYN_CTL_INTENA_M); +} + +/** * ice_vsi_stop_tx_rings - Disable Tx rings * @vsi: the VSI being configured * @rst_src: reset source @@ -2065,6 +2078,8 @@ ice_vsi_stop_tx_rings(struct ice_vsi *vsi, enum ice_disq_rst_src rst_src, break; for (i = 0; i < vsi->tc_cfg.tc_info[tc].qcount_tx; i++) { + struct ice_q_vector *q_vector; + if (!rings || !rings[q_idx]) { err = -EINVAL; goto err_out; @@ -2085,13 +2100,10 @@ ice_vsi_stop_tx_rings(struct ice_vsi *vsi, enum ice_disq_rst_src rst_src, /* trigger a software interrupt for the vector * associated to the queue to schedule NAPI handler */ - if (rings[q_idx]->q_vector) { - int reg_idx = rings[i]->q_vector->reg_idx; + q_vector = rings[i]->q_vector; + if (q_vector) + ice_trigger_sw_intr(hw, q_vector); - wr32(hw, GLINT_DYN_CTL(reg_idx), - GLINT_DYN_CTL_SWINT_TRIG_M | - GLINT_DYN_CTL_INTENA_MSK_M); - } q_idx++; } status = ice_dis_vsi_txq(vsi->port_info, vsi->idx, tc, |