From 0ce8df6614568cfb390756cac35ac690105181f5 Mon Sep 17 00:00:00 2001 From: Edward Cree Date: Fri, 11 Sep 2020 23:40:14 +0100 Subject: sfc: implement encapsulated TSO on EF10 >From the 8000 series onwards, EF10 NICs with suitable firmware are able to perform TSO within VXLAN or NVGRE encapsulation. Signed-off-by: Edward Cree Signed-off-by: David S. Miller --- drivers/net/ethernet/sfc/net_driver.h | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'drivers/net/ethernet/sfc/net_driver.h') diff --git a/drivers/net/ethernet/sfc/net_driver.h b/drivers/net/ethernet/sfc/net_driver.h index ddcd1c46e3f3..a4c0445a3e88 100644 --- a/drivers/net/ethernet/sfc/net_driver.h +++ b/drivers/net/ethernet/sfc/net_driver.h @@ -77,6 +77,9 @@ /* Minimum MTU, from RFC791 (IP) */ #define EFX_MIN_MTU 68 +/* Maximum total header length for TSOv2 */ +#define EFX_TSO2_MAX_HDRLEN 208 + /* Size of an RX scatter buffer. Small enough to pack 2 into a 4K page, * and should be a multiple of the cache line size. */ @@ -195,6 +198,7 @@ struct efx_tx_buffer { * Is our index within @channel->tx_queue array. * @type: configuration type of this TX queue. A bitmask of %EFX_TXQ_TYPE_* flags. * @tso_version: Version of TSO in use for this queue. + * @tso_encap: Is encapsulated TSO supported? Supported in TSOv2 on 8000 series. * @channel: The associated channel * @core_txq: The networking core TX queue structure * @buffer: The software buffer ring @@ -258,6 +262,7 @@ struct efx_tx_queue { unsigned int label; unsigned int type; unsigned int tso_version; + bool tso_encap; struct efx_channel *channel; struct netdev_queue *core_txq; struct efx_tx_buffer *buffer; -- cgit