diff options
| author |   David Arinzon <darinzon@amazon.com> | 2023-03-23 18:36:07 +0200 |
|---|---|---|
| committer |   Jakub Kicinski <kuba@kernel.org> | 2023-03-27 19:49:58 -0700 |
| commit | 1e36668886882d51641bd57ae659e678b3f1ca9c (patch) | |
| tree | c97ed571354e321be10e1a3810f05faab5595fac /drivers/net/ethernet/amazon/ena/ena_netdev.h | |
| parent | net: ena: Make few cosmetic preparations to support large LLQ (diff) | |
| download | wireguard-linux-1e36668886882d51641bd57ae659e678b3f1ca9c.tar.xz wireguard-linux-1e36668886882d51641bd57ae659e678b3f1ca9c.zip | |
net: ena: Add an option to configure large LLQ headers
Allow configuring the device with large LLQ headers. The Low Latency
Queue (LLQ) allows the driver to write the first N bytes of the packet,
along with the rest of the TX descriptors directly into device (N can be
either 96 or 224 for large LLQ headers configuration).
Having L4 TCP/UDP headers contained in the first 96 bytes of the packet
is required to get maximum performance from the device.
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Reviewed-by: Michal Kubiak <michal.kubiak@intel.com>
Signed-off-by: David Arinzon <darinzon@amazon.com>
Signed-off-by: Shay Agroskin <shayagr@amazon.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'drivers/net/ethernet/amazon/ena/ena_netdev.h')
| -rw-r--r-- | drivers/net/ethernet/amazon/ena/ena_netdev.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/net/ethernet/amazon/ena/ena_netdev.h b/drivers/net/ethernet/amazon/ena/ena_netdev.h index 2cb141079474..3e8c4a66c7d8 100644 --- a/drivers/net/ethernet/amazon/ena/ena_netdev.h +++ b/drivers/net/ethernet/amazon/ena/ena_netdev.h @@ -334,6 +334,14 @@ struct ena_adapter { u32 msg_enable; + /* large_llq_header_enabled is used for two purposes: + * 1. Indicates that large LLQ has been requested. + * 2. Indicates whether large LLQ is set or not after device + * initialization / configuration. + */ + bool large_llq_header_enabled; + bool large_llq_header_supported; + u16 max_tx_sgl_size; u16 max_rx_sgl_size; |