openkylin
/
linux
mirror of https://gitee.com/openkylin/linux.git
9
0
Fork 0
Code Issues Projects Releases Wiki Activity

net/mlx5: Introduce general notification event 

When delay drop timeout is expired, the firmware raises
general notification event of DELAY_DROP_TIMEOUT subtype.
In addition the feature is disable so the driver have to
reactivate the timeout.

Signed-off-by: Maor Gottlieb <maorg@mellanox.com>
Reviewed-by: Yishai Hadas <yishaih@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This commit is contained in:
Maor Gottlieb 2017-05-30 10:29:12 +03:00 committed by Doug Ledford
parent c1e0bfc131
commit 246ac9814c
4 changed files with 31 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

23
drivers/net/ethernet/mellanox/mlx5/core/eq.c
View File

@ -161,6 +161,8 @@ static const char *eqe_type_str(u8 type)
return "MLX5_EVENT_TYPE_NIC_VPORT_CHANGE";
case MLX5_EVENT_TYPE_FPGA_ERROR:
return "MLX5_EVENT_TYPE_FPGA_ERROR";
case MLX5_EVENT_TYPE_GENERAL_EVENT:
return "MLX5_EVENT_TYPE_GENERAL_EVENT";
default:
return "Unrecognized event";
}
@ -378,6 +380,20 @@ int mlx5_core_page_fault_resume(struct mlx5_core_dev *dev, u32 token,
EXPORT_SYMBOL_GPL(mlx5_core_page_fault_resume);
#endif
static void general_event_handler(struct mlx5_core_dev *dev,
struct mlx5_eqe *eqe)
{
switch (eqe->sub_type) {
case MLX5_GENERAL_SUBTYPE_DELAY_DROP_TIMEOUT:
if (dev->event)
dev->event(dev, MLX5_DEV_EVENT_DELAY_DROP_TIMEOUT, 0);
break;
default:
mlx5_core_dbg(dev, "General event with unrecognized subtype: sub_type %d\n",
eqe->sub_type);
}
}
static irqreturn_t mlx5_eq_int(int irq, void *eq_ptr)
{
struct mlx5_eq *eq = eq_ptr;
@ -486,6 +502,9 @@ static irqreturn_t mlx5_eq_int(int irq, void *eq_ptr)
mlx5_fpga_event(dev, eqe->type, &eqe->data.raw);
break;
case MLX5_EVENT_TYPE_GENERAL_EVENT:
general_event_handler(dev, eqe);
break;
default:
mlx5_core_warn(dev, "Unhandled event 0x%x on EQ 0x%x\n",
eqe->type, eq->eqn);
@ -693,6 +712,10 @@ int mlx5_start_eqs(struct mlx5_core_dev *dev)
mlx5_core_is_pf(dev))
async_event_mask |= (1ull << MLX5_EVENT_TYPE_NIC_VPORT_CHANGE);
if (MLX5_CAP_GEN(dev, port_type) == MLX5_CAP_PORT_TYPE_ETH &&
MLX5_CAP_GEN(dev, general_notification_event))
async_event_mask |= (1ull << MLX5_EVENT_TYPE_GENERAL_EVENT);
if (MLX5_CAP_GEN(dev, port_module_event))
async_event_mask |= (1ull << MLX5_EVENT_TYPE_PORT_MODULE_EVENT);
else

5
include/linux/mlx5/device.h
View File

@ -290,6 +290,7 @@ enum mlx5_event {
MLX5_EVENT_TYPE_GPIO_EVENT = 0x15,
MLX5_EVENT_TYPE_PORT_MODULE_EVENT = 0x16,
MLX5_EVENT_TYPE_REMOTE_CONFIG = 0x19,
MLX5_EVENT_TYPE_GENERAL_EVENT = 0x22,
MLX5_EVENT_TYPE_PPS_EVENT = 0x25,
MLX5_EVENT_TYPE_DB_BF_CONGESTION = 0x1a,
@ -304,6 +305,10 @@ enum mlx5_event {
MLX5_EVENT_TYPE_FPGA_ERROR = 0x20,
};
enum {
MLX5_GENERAL_SUBTYPE_DELAY_DROP_TIMEOUT = 0x1,
};
enum {
MLX5_PORT_CHANGE_SUBTYPE_DOWN = 1,
MLX5_PORT_CHANGE_SUBTYPE_ACTIVE = 4,

1
include/linux/mlx5/driver.h
View File

@ -192,6 +192,7 @@ enum mlx5_dev_event {
MLX5_DEV_EVENT_GUID_CHANGE,
MLX5_DEV_EVENT_CLIENT_REREG,
MLX5_DEV_EVENT_PPS,
MLX5_DEV_EVENT_DELAY_DROP_TIMEOUT,
};
enum mlx5_port_status {

3
include/linux/mlx5/mlx5_ifc.h
View File

@ -874,7 +874,8 @@ struct mlx5_ifc_cmd_hca_cap_bits {
u8 max_tc[0x4];
u8 reserved_at_1d0[0x1];
u8 dcbx[0x1];
u8 reserved_at_1d2[0x3];
u8 general_notification_event[0x1];
u8 reserved_at_1d3[0x2];
u8 fpga[0x1];
u8 rol_s[0x1];
u8 rol_g[0x1];