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Commit 246ac981 authored by Maor Gottlieb's avatar Maor Gottlieb Committed by Doug Ledford
Browse files

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: default avatarMaor Gottlieb <maorg@mellanox.com>
Reviewed-by: default avatarYishai Hadas <yishaih@mellanox.com>
Signed-off-by: default avatarLeon Romanovsky <leon@kernel.org>
Signed-off-by: default avatarDoug Ledford <dledford@redhat.com>
parent c1e0bfc1

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

+23 −0
Original line number Diff line number Diff line
@@ -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

include/linux/mlx5/device.h

+5 −0
Original line number Diff line number Diff line
@@ -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,

include/linux/mlx5/driver.h

+1 −0
Original line number Diff line number Diff line
@@ -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 {

include/linux/mlx5/mlx5_ifc.h

+2 −1
Original line number Diff line number Diff line
@@ -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];