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Commit d998735f authored by Eugenia Emantayev's avatar Eugenia Emantayev Committed by David S. Miller
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net/mlx4_core: Add timestamping device capability 



Add new device capability for timestamping support and query FW to retrieve it.

Signed-off-by: default avatarEugenia Emantayev <eugenia@mellanox.com>
Signed-off-by: default avatarOr Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: default avatarAmir Vadai <amirv@mellanox.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 8bfadc32

drivers/net/ethernet/mellanox/mlx4/fw.c

+6 −1
Original line number Diff line number Diff line
@@ -130,7 +130,8 @@ static void dump_dev_cap_flags2(struct mlx4_dev *dev, u64 flags) 
		[1] = "RSS Toeplitz Hash Function support",

		[2] = "RSS XOR Hash Function support",

		[3] = "Device manage flow steering support",

		[4] = "Automatic mac reassignment support"

		[4] = "Automatic MAC reassignment support",

		[5] = "Time stamping support"

	};

	int i;
@@ -444,6 +445,7 @@ int mlx4_QUERY_DEV_CAP(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap) 
#define QUERY_DEV_CAP_MAX_MSG_SZ_OFFSET		0x38

#define QUERY_DEV_CAP_MAX_GID_OFFSET		0x3b

#define QUERY_DEV_CAP_RATE_SUPPORT_OFFSET	0x3c

#define QUERY_DEV_CAP_CQ_TS_SUPPORT_OFFSET	0x3e

#define QUERY_DEV_CAP_MAX_PKEY_OFFSET		0x3f

#define QUERY_DEV_CAP_EXT_FLAGS_OFFSET		0x40

#define QUERY_DEV_CAP_FLAGS_OFFSET		0x44
@@ -560,6 +562,9 @@ int mlx4_QUERY_DEV_CAP(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap) 
	dev_cap->fs_max_num_qp_per_entry = field;

	MLX4_GET(stat_rate, outbox, QUERY_DEV_CAP_RATE_SUPPORT_OFFSET);

	dev_cap->stat_rate_support = stat_rate;

	MLX4_GET(field, outbox, QUERY_DEV_CAP_CQ_TS_SUPPORT_OFFSET);

	if (field & 0x80)

		dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_TS;

	MLX4_GET(ext_flags, outbox, QUERY_DEV_CAP_EXT_FLAGS_OFFSET);

	MLX4_GET(flags, outbox, QUERY_DEV_CAP_FLAGS_OFFSET);

	dev_cap->flags = flags | (u64)ext_flags << 32;

include/linux/mlx4/device.h

+2 −1
Original line number Diff line number Diff line
@@ -152,7 +152,8 @@ enum { 
	MLX4_DEV_CAP_FLAG2_RSS_TOP		= 1LL <<  1,

	MLX4_DEV_CAP_FLAG2_RSS_XOR		= 1LL <<  2,

	MLX4_DEV_CAP_FLAG2_FS_EN		= 1LL <<  3,

	MLX4_DEV_CAP_FLAGS2_REASSIGN_MAC_EN	= 1LL <<  4

	MLX4_DEV_CAP_FLAGS2_REASSIGN_MAC_EN	= 1LL <<  4,

	MLX4_DEV_CAP_FLAG2_TS			= 1LL <<  5

};



enum {