diff options
Diffstat (limited to 'Documentation/networking/device_drivers/ethernet/amazon/ena.rst')
| -rw-r--r-- | Documentation/networking/device_drivers/ethernet/amazon/ena.rst | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/Documentation/networking/device_drivers/ethernet/amazon/ena.rst b/Documentation/networking/device_drivers/ethernet/amazon/ena.rst index b842bcb14255..a4c7d0c65fd7 100644 --- a/Documentation/networking/device_drivers/ethernet/amazon/ena.rst +++ b/Documentation/networking/device_drivers/ethernet/amazon/ena.rst @@ -211,10 +211,16 @@ Documentation/networking/net_dim.rst RX copybreak ============ + The rx_copybreak is initialized by default to ENA_DEFAULT_RX_COPYBREAK and can be configured by the ETHTOOL_STUNABLE command of the SIOCETHTOOL ioctl. +This option controls the maximum packet length for which the RX +descriptor it was received on would be recycled. When a packet smaller +than RX copybreak bytes is received, it is copied into a new memory +buffer and the RX descriptor is returned to HW. + Statistics ========== |