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| author | Alexander Duyck <alexander.h.duyck@intel.com> | 2011-10-05 13:35:24 +0000 |
|---|---|---|
| committer | Jeff Kirsher <jeffrey.t.kirsher@intel.com> | 2011-10-06 22:46:55 -0700 |
| commit | 13fde97a48b622a192ae7d0a8011248be891cdd4 (patch) | |
| tree | 99be7848bab986104caa2221ba3abfc59e46da57 /drivers/net/ethernet/intel/igb/igb.h | |
| parent | b64e9dd5d04561c2cee7e9d9d70bd6d45cc01e7c (diff) | |
| download | op-kernel-dev-13fde97a48b622a192ae7d0a8011248be891cdd4.zip op-kernel-dev-13fde97a48b622a192ae7d0a8011248be891cdd4.tar.gz | |
igb: Make Tx budget for NAPI user adjustable
This change is to make the NAPI budget limits for transmit
adjustable. Currently they are only set to 128, and when
the changes/improvements to NAPI occur to allow for adjustability,
it would be possible to tune the value for optimal
performance with applications such as routing.
v2: remove tie between NAPI and interrupt moderation
fix work limit define name (s/IXGBE/IGB/)
Update patch description to better reflect patch
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Diffstat (limited to 'drivers/net/ethernet/intel/igb/igb.h')
| -rw-r--r-- | drivers/net/ethernet/intel/igb/igb.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/net/ethernet/intel/igb/igb.h b/drivers/net/ethernet/intel/igb/igb.h index b725937..beab918 100644 --- a/drivers/net/ethernet/intel/igb/igb.h +++ b/drivers/net/ethernet/intel/igb/igb.h @@ -47,6 +47,7 @@ struct igb_adapter; /* TX/RX descriptor defines */ #define IGB_DEFAULT_TXD 256 +#define IGB_DEFAULT_TX_WORK 128 #define IGB_MIN_TXD 80 #define IGB_MAX_TXD 4096 @@ -177,6 +178,7 @@ struct igb_q_vector { u32 eims_value; u16 cpu; + u16 tx_work_limit; u16 itr_val; u8 set_itr; @@ -266,6 +268,7 @@ struct igb_adapter { u16 rx_itr; /* TX */ + u16 tx_work_limit; u32 tx_timeout_count; int num_tx_queues; struct igb_ring *tx_ring[16]; |
