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net: ethtool: extend ringparam set/get APIs for tx_push

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Currently tx push is a standard driver feature which controls use of a fast
path descriptor push. So this patch extends the ringparam APIs and data
structures to support set/get tx push by ethtool -G/g.

Signed-off-by: Jie Wang <wangjie125@huawei.com>
Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Jie Wang
2022-04-12 10:01:19 +08:00
committed by Jakub Kicinski
parent 0a03f3c511
commit 4dc84c06a3
5 changed files with 30 additions and 3 deletions
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4
include/linux/ethtool.h
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@@ -71,11 +71,13 @@ enum {
* struct kernel_ethtool_ringparam - RX/TX ring configuration
* @rx_buf_len: Current length of buffers on the rx ring.
* @tcp_data_split: Scatter packet headers and data to separate buffers
* @tx_push: The flag of tx push mode
* @cqe_size: Size of TX/RX completion queue event
*/
struct kernel_ethtool_ringparam {
u32 rx_buf_len;
u8 tcp_data_split;
u8 tx_push;
u32 cqe_size;
};
@@ -83,10 +85,12 @@ struct kernel_ethtool_ringparam {
* enum ethtool_supported_ring_param - indicator caps for setting ring params
* @ETHTOOL_RING_USE_RX_BUF_LEN: capture for setting rx_buf_len
* @ETHTOOL_RING_USE_CQE_SIZE: capture for setting cqe_size
* @ETHTOOL_RING_USE_TX_PUSH: capture for setting tx_push
*/
enum ethtool_supported_ring_param {
ETHTOOL_RING_USE_RX_BUF_LEN = BIT(0),
ETHTOOL_RING_USE_CQE_SIZE = BIT(1),
ETHTOOL_RING_USE_TX_PUSH = BIT(2),
};
#define __ETH_RSS_HASH_BIT(bit) ((u32)1 << (bit))