drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c

Source file repositories/reference/linux-study-clean/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c

File Facts

System: Linux kernel
Corpus path: drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c
Extension: .c
Size: 85950 bytes
Lines: 2787
Domain: Driver Families
Bucket: drivers/net
Inferred role: Driver Families: implementation source
Status: source implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.
Uses kernel synchronization; read lock ordering, sleepability, and interrupt context assumptions before translating.
Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

linux/dim.h
linux/ethtool_netlink.h
net/netdev_queues.h
en.h
en/channels.h
en/dim.h
en/port.h
en/params.h
en/ptp.h
lib/clock.h
en/fs_ethtool.h

Detected Declarations

struct ptys2ethtool_config
struct pflag_desc
struct mlx5e_ethtool_link_ext_state_opcode_mapping
function Copyright
function mlx5e_get_drvinfo
function mlx5e_build_ptys2ethtool_map
function mlx5e_ethtool_get_speed_arr
function mlx5e_ethtool_get_sset_count
function mlx5e_get_sset_count
function mlx5e_ethtool_get_strings
function mlx5e_get_strings
function mlx5e_ethtool_get_ethtool_stats
function mlx5e_get_ethtool_stats
function mlx5e_ethtool_get_ringparam
function mlx5e_get_ringparam
function mlx5e_ethtool_set_tcp_data_split
function mlx5e_ethtool_set_ringparam
function mlx5e_set_ringparam
function mlx5e_ethtool_get_channels
function mlx5e_get_channels
function mlx5e_ethtool_set_channels
function mlx5e_set_channels
function mlx5e_ethtool_get_coalesce
function mlx5e_get_coalesce
function mlx5e_ethtool_get_per_queue_coalesce
function mlx5e_get_per_queue_coalesce
function mlx5e_set_priv_channels_tx_coalesce
function mlx5e_set_priv_channels_rx_coalesce
function mlx5e_ethtool_set_coalesce
function mlx5e_set_coalesce
function mlx5e_ethtool_set_per_queue_coalesce
function mlx5e_set_per_queue_coalesce
function ptys2ethtool_process_link
function pplm2ethtool_fec
function get_fec_supported_advertised
function ptys2ethtool_supported_advertised_port
function get_link_properties
function get_supported
function get_advertising
function get_connector_port
function get_lp_advertising
function mlx5e_ethtool_get_link_ksettings
function mlx5e_get_link_ksettings
function mlx5e_speed_validate
function mlx5e_ethtool2ptys_adver_link
function mlx5e_ethtool2ptys_ext_adver_link
function ext_link_mode_requested
function mlx5e_ethtool_set_link_ksettings

Annotated Snippet

struct ptys2ethtool_config {
	__ETHTOOL_DECLARE_LINK_MODE_MASK(supported);
	__ETHTOOL_DECLARE_LINK_MODE_MASK(advertised);
};

static
struct ptys2ethtool_config ptys2legacy_ethtool_table[MLX5E_LINK_MODES_NUMBER];
static
struct ptys2ethtool_config ptys2ext_ethtool_table[MLX5E_EXT_LINK_MODES_NUMBER];

#define MLX5_BUILD_PTYS2ETHTOOL_CONFIG(reg_, table, ...)                  \
	({                                                              \
		struct ptys2ethtool_config *cfg;                        \
		const unsigned int modes[] = { __VA_ARGS__ };           \
		unsigned int i;                                         \
		cfg = &ptys2##table##_ethtool_table[reg_];		\
		bitmap_zero(cfg->supported,                             \
			    __ETHTOOL_LINK_MODE_MASK_NBITS);            \
		bitmap_zero(cfg->advertised,                            \
			    __ETHTOOL_LINK_MODE_MASK_NBITS);            \
		for (i = 0 ; i < ARRAY_SIZE(modes) ; ++i) {             \
			bitmap_set(cfg->supported, modes[i], 1);        \
			bitmap_set(cfg->advertised, modes[i], 1);       \
		}                                                       \
	})

void mlx5e_build_ptys2ethtool_map(void)
{
	memset(ptys2legacy_ethtool_table, 0, sizeof(ptys2legacy_ethtool_table));
	memset(ptys2ext_ethtool_table, 0, sizeof(ptys2ext_ethtool_table));
	MLX5_BUILD_PTYS2ETHTOOL_CONFIG(MLX5E_1000BASE_CX_SGMII, legacy,
				       ETHTOOL_LINK_MODE_1000baseKX_Full_BIT);
	MLX5_BUILD_PTYS2ETHTOOL_CONFIG(MLX5E_1000BASE_KX, legacy,
				       ETHTOOL_LINK_MODE_1000baseKX_Full_BIT);
	MLX5_BUILD_PTYS2ETHTOOL_CONFIG(MLX5E_10GBASE_CX4, legacy,
				       ETHTOOL_LINK_MODE_10000baseKX4_Full_BIT);
	MLX5_BUILD_PTYS2ETHTOOL_CONFIG(MLX5E_10GBASE_KX4, legacy,
				       ETHTOOL_LINK_MODE_10000baseKX4_Full_BIT);
	MLX5_BUILD_PTYS2ETHTOOL_CONFIG(MLX5E_10GBASE_KR, legacy,
				       ETHTOOL_LINK_MODE_10000baseKR_Full_BIT);
	MLX5_BUILD_PTYS2ETHTOOL_CONFIG(MLX5E_20GBASE_KR2, legacy,
				       ETHTOOL_LINK_MODE_20000baseKR2_Full_BIT);
	MLX5_BUILD_PTYS2ETHTOOL_CONFIG(MLX5E_40GBASE_CR4, legacy,
				       ETHTOOL_LINK_MODE_40000baseCR4_Full_BIT);
	MLX5_BUILD_PTYS2ETHTOOL_CONFIG(MLX5E_40GBASE_KR4, legacy,
				       ETHTOOL_LINK_MODE_40000baseKR4_Full_BIT);
	MLX5_BUILD_PTYS2ETHTOOL_CONFIG(MLX5E_56GBASE_R4, legacy,
				       ETHTOOL_LINK_MODE_56000baseKR4_Full_BIT);
	MLX5_BUILD_PTYS2ETHTOOL_CONFIG(MLX5E_10GBASE_CR, legacy,
				       ETHTOOL_LINK_MODE_10000baseKR_Full_BIT);
	MLX5_BUILD_PTYS2ETHTOOL_CONFIG(MLX5E_10GBASE_SR, legacy,
				       ETHTOOL_LINK_MODE_10000baseKR_Full_BIT);
	MLX5_BUILD_PTYS2ETHTOOL_CONFIG(MLX5E_10GBASE_ER, legacy,
				       ETHTOOL_LINK_MODE_10000baseKR_Full_BIT);
	MLX5_BUILD_PTYS2ETHTOOL_CONFIG(MLX5E_40GBASE_SR4, legacy,
				       ETHTOOL_LINK_MODE_40000baseSR4_Full_BIT);
	MLX5_BUILD_PTYS2ETHTOOL_CONFIG(MLX5E_40GBASE_LR4, legacy,
				       ETHTOOL_LINK_MODE_40000baseLR4_Full_BIT);
	MLX5_BUILD_PTYS2ETHTOOL_CONFIG(MLX5E_50GBASE_SR2, legacy,
				       ETHTOOL_LINK_MODE_50000baseSR2_Full_BIT);
	MLX5_BUILD_PTYS2ETHTOOL_CONFIG(MLX5E_100GBASE_CR4, legacy,
				       ETHTOOL_LINK_MODE_100000baseCR4_Full_BIT);
	MLX5_BUILD_PTYS2ETHTOOL_CONFIG(MLX5E_100GBASE_SR4, legacy,
				       ETHTOOL_LINK_MODE_100000baseSR4_Full_BIT);
	MLX5_BUILD_PTYS2ETHTOOL_CONFIG(MLX5E_100GBASE_KR4, legacy,
				       ETHTOOL_LINK_MODE_100000baseKR4_Full_BIT);
	MLX5_BUILD_PTYS2ETHTOOL_CONFIG(MLX5E_100GBASE_LR4, legacy,
				       ETHTOOL_LINK_MODE_100000baseLR4_ER4_Full_BIT);
	MLX5_BUILD_PTYS2ETHTOOL_CONFIG(MLX5E_100BASE_TX, legacy,
				       ETHTOOL_LINK_MODE_100baseT_Full_BIT);
	MLX5_BUILD_PTYS2ETHTOOL_CONFIG(MLX5E_1000BASE_T, legacy,
				       ETHTOOL_LINK_MODE_1000baseT_Full_BIT);
	MLX5_BUILD_PTYS2ETHTOOL_CONFIG(MLX5E_10GBASE_T, legacy,
				       ETHTOOL_LINK_MODE_10000baseT_Full_BIT);
	MLX5_BUILD_PTYS2ETHTOOL_CONFIG(MLX5E_25GBASE_CR, legacy,
				       ETHTOOL_LINK_MODE_25000baseCR_Full_BIT);
	MLX5_BUILD_PTYS2ETHTOOL_CONFIG(MLX5E_25GBASE_KR, legacy,
				       ETHTOOL_LINK_MODE_25000baseKR_Full_BIT);
	MLX5_BUILD_PTYS2ETHTOOL_CONFIG(MLX5E_25GBASE_SR, legacy,
				       ETHTOOL_LINK_MODE_25000baseSR_Full_BIT);
	MLX5_BUILD_PTYS2ETHTOOL_CONFIG(MLX5E_50GBASE_CR2, legacy,
				       ETHTOOL_LINK_MODE_50000baseCR2_Full_BIT);
	MLX5_BUILD_PTYS2ETHTOOL_CONFIG(MLX5E_50GBASE_KR2, legacy,
				       ETHTOOL_LINK_MODE_50000baseKR2_Full_BIT);
	MLX5_BUILD_PTYS2ETHTOOL_CONFIG(MLX5E_SGMII_100M, ext,
				       ETHTOOL_LINK_MODE_100baseT_Full_BIT);
	MLX5_BUILD_PTYS2ETHTOOL_CONFIG(MLX5E_1000BASE_X_SGMII, ext,
				       ETHTOOL_LINK_MODE_1000baseT_Full_BIT,
				       ETHTOOL_LINK_MODE_1000baseKX_Full_BIT,
				       ETHTOOL_LINK_MODE_1000baseX_Full_BIT);

Annotation

Immediate include surface: `linux/dim.h`, `linux/ethtool_netlink.h`, `net/netdev_queues.h`, `en.h`, `en/channels.h`, `en/dim.h`, `en/port.h`, `en/params.h`.
Detected declarations: `struct ptys2ethtool_config`, `struct pflag_desc`, `struct mlx5e_ethtool_link_ext_state_opcode_mapping`, `function Copyright`, `function mlx5e_get_drvinfo`, `function mlx5e_build_ptys2ethtool_map`, `function mlx5e_ethtool_get_speed_arr`, `function mlx5e_ethtool_get_sset_count`, `function mlx5e_get_sset_count`, `function mlx5e_ethtool_get_strings`.
Atlas domain: Driver Families / drivers/net.
Implementation status: source implementation candidate.
Synchronization appears in or near this file; preserve lock ordering, sleepability, and interrupt-context constraints.

Implementation Notes

This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.