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net/mlx4_core: Add health buffer address capability 

Health buffer address is a 32 bit PCI address offset provided by
the FW. This offset is used for reading FW health debug data
located on the shared CR space. Cr space is accessible in both
driver and FW and allows for different queries and configurations.
Health buffer size is always 64B of readable data followed by a
lock which is used to block volatile CR space access.

Signed-off-by: Alex Vesker <valex@mellanox.com>
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Alex Vesker 2018-07-12 15:13:15 +03:00 committed by David S. Miller
parent 4e54795a27
commit 523f9eb1ef
4 changed files with 7 additions and 1 deletions
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5
drivers/net/ethernet/mellanox/mlx4/fw.c
View File

@ -825,7 +825,7 @@ int mlx4_QUERY_DEV_CAP(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap)
#define QUERY_DEV_CAP_QP_RATE_LIMIT_NUM_OFFSET 0xcc
#define QUERY_DEV_CAP_QP_RATE_LIMIT_MAX_OFFSET 0xd0
#define QUERY_DEV_CAP_QP_RATE_LIMIT_MIN_OFFSET 0xd2
#define QUERY_DEV_CAP_HEALTH_BUFFER_ADDRESS_OFFSET 0xe4
dev_cap->flags2 = 0;
mailbox = mlx4_alloc_cmd_mailbox(dev);
@ -1082,6 +1082,9 @@ int mlx4_QUERY_DEV_CAP(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap)
dev_cap->rl_caps.min_unit = size >> 14;
}
MLX4_GET(dev_cap->health_buffer_addrs, outbox,
QUERY_DEV_CAP_HEALTH_BUFFER_ADDRESS_OFFSET);
MLX4_GET(field32, outbox, QUERY_DEV_CAP_EXT_2_FLAGS_OFFSET);
if (field32 & (1 << 16))
dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_UPDATE_QP;

1
drivers/net/ethernet/mellanox/mlx4/fw.h
View File

@ -128,6 +128,7 @@ struct mlx4_dev_cap {
u32 dmfs_high_rate_qpn_base;
u32 dmfs_high_rate_qpn_range;
struct mlx4_rate_limit_caps rl_caps;
u32 health_buffer_addrs;
struct mlx4_port_cap port_cap[MLX4_MAX_PORTS + 1];
bool wol_port[MLX4_MAX_PORTS + 1];
};

1
drivers/net/ethernet/mellanox/mlx4/main.c
View File

@ -523,6 +523,7 @@ static int mlx4_dev_cap(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap)
dev->caps.max_rss_tbl_sz = dev_cap->max_rss_tbl_sz;
dev->caps.wol_port[1] = dev_cap->wol_port[1];
dev->caps.wol_port[2] = dev_cap->wol_port[2];
dev->caps.health_buffer_addrs = dev_cap->health_buffer_addrs;
/* Save uar page shift */
if (!mlx4_is_slave(dev)) {

1
include/linux/mlx4/device.h
View File

@ -630,6 +630,7 @@ struct mlx4_caps {
u32 vf_caps;
bool wol_port[MLX4_MAX_PORTS + 1];
struct mlx4_rate_limit_caps rl_caps;
u32 health_buffer_addrs;
};
struct mlx4_buf_list {