diff options
| author | Brett Creeley <[email protected]> | 2018-09-20 00:23:19 +0000 |
|---|---|---|
| committer | Jeff Kirsher <[email protected]> | 2018-10-02 14:19:30 +0000 |
| commit | 9e4ab4c29a62d2ccbf4be42707669be2f42d391c (patch) | |
| tree | 54327122a0cddba67d650678f355f808e4966844 /drivers/net/ethernet/intel/ice/ice.h | |
| parent | ice: Align ice_reset_req enum values to hardware reset values (diff) | |
| download | kernel-9e4ab4c29a62d2ccbf4be42707669be2f42d391c.tar.gz kernel-9e4ab4c29a62d2ccbf4be42707669be2f42d391c.zip | |
ice: Add support for dynamic interrupt moderation
Currently there is no support for dynamic interrupt moderation. This
patch adds some initial code to support this. The following changes
were made:
1. Currently we are using multiple members to store the interrupt
granularity (itr_gran_25/50/100/200). This is not necessary because
we can query the device to determine what the interrupt granularity
should be set to, done by a new function ice_get_itr_intrl_gran.
2. Added intrl to ice_q_vector structure to support interrupt rate
limiting.
3. Added the function ice_intrl_usecs_to_reg for converting to a value
in usecs that the device understands.
4. Added call to write to the GLINT_RATE register. Disable intrl by
default for now.
5. Changed rx/tx_itr_setting to itr_setting because having both seems
redundant because a ring is either Tx or Rx.
6. Initialize itr_setting for both Tx/Rx rings in ice_vsi_alloc_rings()
Signed-off-by: Brett Creeley <[email protected]>
Signed-off-by: Anirudh Venkataramanan <[email protected]>
Tested-by: Andrew Bowers <[email protected]>
Signed-off-by: Jeff Kirsher <[email protected]>
Diffstat (limited to 'drivers/net/ethernet/intel/ice/ice.h')
| -rw-r--r-- | drivers/net/ethernet/intel/ice/ice.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/net/ethernet/intel/ice/ice.h b/drivers/net/ethernet/intel/ice/ice.h index fc6bc1233f10..0b269c470343 100644 --- a/drivers/net/ethernet/intel/ice/ice.h +++ b/drivers/net/ethernet/intel/ice/ice.h @@ -230,6 +230,10 @@ struct ice_q_vector { u8 num_ring_tx; /* total number of tx rings in vector */ u8 num_ring_rx; /* total number of rx rings in vector */ char name[ICE_INT_NAME_STR_LEN]; + /* in usecs, need to use ice_intrl_to_usecs_reg() before writing this + * value to the device + */ + u8 intrl; } ____cacheline_internodealigned_in_smp; enum ice_pf_flags { |