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ethtool: add support to set/get rx buf len via ethtool

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Add support to set rx buf len via ethtool -G parameter and get
rx buf len via ethtool -g parameter.

Signed-off-by: Hao Chen <chenhao288@hisilicon.com>
Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Hao Chen
2021-11-18 20:12:42 +08:00
committed by David S. Miller
parent e445f08af2
commit 0b70c256eb
5 changed files with 47 additions and 7 deletions
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18
include/linux/ethtool.h
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@@ -67,6 +67,22 @@ enum {
ETH_RSS_HASH_FUNCS_COUNT
};
/**
* struct kernel_ethtool_ringparam - RX/TX ring configuration
* @rx_buf_len: Current length of buffers on the rx ring.
*/
struct kernel_ethtool_ringparam {
u32 rx_buf_len;
};
/**
* enum ethtool_supported_ring_param - indicator caps for setting ring params
* @ETHTOOL_RING_USE_RX_BUF_LEN: capture for setting rx_buf_len
*/
enum ethtool_supported_ring_param {
ETHTOOL_RING_USE_RX_BUF_LEN = BIT(0),
};
#define __ETH_RSS_HASH_BIT(bit) ((u32)1 << (bit))
#define __ETH_RSS_HASH(name) __ETH_RSS_HASH_BIT(ETH_RSS_HASH_##name##_BIT)
@@ -432,6 +448,7 @@ struct ethtool_module_power_mode_params {
* @cap_link_lanes_supported: indicates if the driver supports lanes
* parameter.
* @supported_coalesce_params: supported types of interrupt coalescing.
* @supported_ring_params: supported ring params.
* @get_drvinfo: Report driver/device information. Should only set the
* @driver, @version, @fw_version and @bus_info fields. If not
* implemented, the @driver and @bus_info fields will be filled in
@@ -613,6 +630,7 @@ struct ethtool_module_power_mode_params {
struct ethtool_ops {
u32 cap_link_lanes_supported:1;
u32 supported_coalesce_params;
u32 supported_ring_params;
void (*get_drvinfo)(struct net_device *, struct ethtool_drvinfo *);
int (*get_regs_len)(struct net_device *);
void (*get_regs)(struct net_device *, struct ethtool_regs *, void *);