diff options
| author | Maciej Fijalkowski <maciej.fijalkowski@intel.com> | 2019-10-24 01:11:23 -0700 |
|---|---|---|
| committer | Jeff Kirsher <jeffrey.t.kirsher@intel.com> | 2019-11-04 13:09:50 -0800 |
| commit | 59bb08080557589aaf577a99d329ccea38b55c95 (patch) | |
| tree | 77a74a96f80a5efa89ac3b70f08d018de8a5880b /drivers/net/ethernet/intel/ice/ice_lib.c | |
| parent | 7237f5b0dba443756e190bdbecd83f9b1377a912 (diff) | |
| download | lwn-59bb08080557589aaf577a99d329ccea38b55c95.tar.gz lwn-59bb08080557589aaf577a99d329ccea38b55c95.zip | |
ice: introduce frame padding computation logic
Take into account the underlying architecture specific settings and
based on that calculate the possible padding that can be supplied.
Typically, for x86 and standard MTU size we will end up with 192 bytes
of headroom. This is the same behavior as our other drivers have and we
can dedicate it for XDP purposes.
Furthermore, introduce the Rx ring flag for indicating whether build_skb
is used on particular. Based on that invoke the routines for padding
calculation.
Signed-off-by: Maciej Fijalkowski <maciej.fijalkowski@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_lib.c')
| -rw-r--r-- | drivers/net/ethernet/intel/ice/ice_lib.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/net/ethernet/intel/ice/ice_lib.c b/drivers/net/ethernet/intel/ice/ice_lib.c index 76569caec469..b1e96cac5b1f 100644 --- a/drivers/net/ethernet/intel/ice/ice_lib.c +++ b/drivers/net/ethernet/intel/ice/ice_lib.c @@ -1194,7 +1194,8 @@ void ice_vsi_cfg_frame_size(struct ice_vsi *vsi) vsi->max_frame = ICE_AQ_SET_MAC_FRAME_SIZE_MAX; vsi->rx_buf_len = ICE_RXBUF_2048; #if (PAGE_SIZE < 8192) - } else if (vsi->netdev->mtu <= ETH_DATA_LEN) { + } else if (!ICE_2K_TOO_SMALL_WITH_PADDING && + (vsi->netdev->mtu <= ETH_DATA_LEN)) { vsi->max_frame = ICE_RXBUF_1536 - NET_IP_ALIGN; vsi->rx_buf_len = ICE_RXBUF_1536 - NET_IP_ALIGN; #endif |