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Commit d624e158 authored by David S. Miller's avatar David S. Miller
Browse files

Merge branch 'mlxsw-router-interfaces-groundwork'



Jiri Pirko says:

====================
mlxsw: Lay the groundwork for the introduction of router interfaces

This is first patchset on a way to introduce ipv4 routing offload support
in mlxsw driver. Does preparations before router interfaces will
be introduced in mlxsw.
====================

Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parents cec88ea3 7b27ce7b
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+1 −1
Original line number Diff line number Diff line
@@ -7,5 +7,5 @@ obj-$(CONFIG_MLXSW_SWITCHX2) += mlxsw_switchx2.o
mlxsw_switchx2-objs		:= switchx2.o
obj-$(CONFIG_MLXSW_SPECTRUM)	+= mlxsw_spectrum.o
mlxsw_spectrum-objs		:= spectrum.o spectrum_buffers.o \
				   spectrum_switchdev.o
				   spectrum_switchdev.o spectrum_router.o
mlxsw_spectrum-$(CONFIG_MLXSW_SPECTRUM_DCB)	+= spectrum_dcb.o
+274 −2
Original line number Diff line number Diff line
/*
 * drivers/net/ethernet/mellanox/mlxsw/reg.h
 * Copyright (c) 2015 Mellanox Technologies. All rights reserved.
 * Copyright (c) 2015 Ido Schimmel <idosch@mellanox.com>
 * Copyright (c) 2015-2016 Ido Schimmel <idosch@mellanox.com>
 * Copyright (c) 2015 Elad Raz <eladr@mellanox.com>
 * Copyright (c) 2015 Jiri Pirko <jiri@mellanox.com>
 *
@@ -386,7 +386,9 @@ enum mlxsw_reg_sfd_rec_action {
	/* forward and trap, trap_id is FDB_TRAP */
	MLXSW_REG_SFD_REC_ACTION_MIRROR_TO_CPU = 1,
	/* trap and do not forward, trap_id is FDB_TRAP */
	MLXSW_REG_SFD_REC_ACTION_TRAP = 3,
	MLXSW_REG_SFD_REC_ACTION_TRAP = 2,
	/* forward to IP router */
	MLXSW_REG_SFD_REC_ACTION_FORWARD_IP_ROUTER = 3,
	MLXSW_REG_SFD_REC_ACTION_DISCARD_ERROR = 15,
};

@@ -3186,6 +3188,272 @@ static inline void mlxsw_reg_hpkt_pack(char *payload, u8 action, u16 trap_id)
	mlxsw_reg_hpkt_ctrl_set(payload, MLXSW_REG_HPKT_CTRL_PACKET_DEFAULT);
}

/* RGCR - Router General Configuration Register
 * --------------------------------------------
 * The register is used for setting up the router configuration.
 */
#define MLXSW_REG_RGCR_ID 0x8001
#define MLXSW_REG_RGCR_LEN 0x28

static const struct mlxsw_reg_info mlxsw_reg_rgcr = {
	.id = MLXSW_REG_RGCR_ID,
	.len = MLXSW_REG_RGCR_LEN,
};

/* reg_rgcr_ipv4_en
 * IPv4 router enable.
 * Access: RW
 */
MLXSW_ITEM32(reg, rgcr, ipv4_en, 0x00, 31, 1);

/* reg_rgcr_ipv6_en
 * IPv6 router enable.
 * Access: RW
 */
MLXSW_ITEM32(reg, rgcr, ipv6_en, 0x00, 30, 1);

/* reg_rgcr_max_router_interfaces
 * Defines the maximum number of active router interfaces for all virtual
 * routers.
 * Access: RW
 */
MLXSW_ITEM32(reg, rgcr, max_router_interfaces, 0x10, 0, 16);

/* reg_rgcr_usp
 * Update switch priority and packet color.
 * 0 - Preserve the value of Switch Priority and packet color.
 * 1 - Recalculate the value of Switch Priority and packet color.
 * Access: RW
 *
 * Note: Not supported by SwitchX and SwitchX-2.
 */
MLXSW_ITEM32(reg, rgcr, usp, 0x18, 20, 1);

/* reg_rgcr_pcp_rw
 * Indicates how to handle the pcp_rewrite_en value:
 * 0 - Preserve the value of pcp_rewrite_en.
 * 2 - Disable PCP rewrite.
 * 3 - Enable PCP rewrite.
 * Access: RW
 *
 * Note: Not supported by SwitchX and SwitchX-2.
 */
MLXSW_ITEM32(reg, rgcr, pcp_rw, 0x18, 16, 2);

/* reg_rgcr_activity_dis
 * Activity disable:
 * 0 - Activity will be set when an entry is hit (default).
 * 1 - Activity will not be set when an entry is hit.
 *
 * Bit 0 - Disable activity bit in Router Algorithmic LPM Unicast Entry
 * (RALUE).
 * Bit 1 - Disable activity bit in Router Algorithmic LPM Unicast Host
 * Entry (RAUHT).
 * Bits 2:7 are reserved.
 * Access: RW
 *
 * Note: Not supported by SwitchX, SwitchX-2 and Switch-IB.
 */
MLXSW_ITEM32(reg, rgcr, activity_dis, 0x20, 0, 8);

static inline void mlxsw_reg_rgcr_pack(char *payload, bool ipv4_en)
{
	MLXSW_REG_ZERO(rgcr, payload);
	mlxsw_reg_rgcr_ipv4_en_set(payload, ipv4_en);
}

/* RITR - Router Interface Table Register
 * --------------------------------------
 * The register is used to configure the router interface table.
 */
#define MLXSW_REG_RITR_ID 0x8002
#define MLXSW_REG_RITR_LEN 0x40

static const struct mlxsw_reg_info mlxsw_reg_ritr = {
	.id = MLXSW_REG_RITR_ID,
	.len = MLXSW_REG_RITR_LEN,
};

/* reg_ritr_enable
 * Enables routing on the router interface.
 * Access: RW
 */
MLXSW_ITEM32(reg, ritr, enable, 0x00, 31, 1);

/* reg_ritr_ipv4
 * IPv4 routing enable. Enables routing of IPv4 traffic on the router
 * interface.
 * Access: RW
 */
MLXSW_ITEM32(reg, ritr, ipv4, 0x00, 29, 1);

/* reg_ritr_ipv6
 * IPv6 routing enable. Enables routing of IPv6 traffic on the router
 * interface.
 * Access: RW
 */
MLXSW_ITEM32(reg, ritr, ipv6, 0x00, 28, 1);

enum mlxsw_reg_ritr_if_type {
	MLXSW_REG_RITR_VLAN_IF,
	MLXSW_REG_RITR_FID_IF,
	MLXSW_REG_RITR_SP_IF,
};

/* reg_ritr_type
 * Router interface type.
 * 0 - VLAN interface.
 * 1 - FID interface.
 * 2 - Sub-port interface.
 * Access: RW
 */
MLXSW_ITEM32(reg, ritr, type, 0x00, 23, 3);

enum {
	MLXSW_REG_RITR_RIF_CREATE,
	MLXSW_REG_RITR_RIF_DEL,
};

/* reg_ritr_op
 * Opcode:
 * 0 - Create or edit RIF.
 * 1 - Delete RIF.
 * Reserved for SwitchX-2. For Spectrum, editing of interface properties
 * is not supported. An interface must be deleted and re-created in order
 * to update properties.
 * Access: WO
 */
MLXSW_ITEM32(reg, ritr, op, 0x00, 20, 2);

/* reg_ritr_rif
 * Router interface index. A pointer to the Router Interface Table.
 * Access: Index
 */
MLXSW_ITEM32(reg, ritr, rif, 0x00, 0, 16);

/* reg_ritr_ipv4_fe
 * IPv4 Forwarding Enable.
 * Enables routing of IPv4 traffic on the router interface. When disabled,
 * forwarding is blocked but local traffic (traps and IP2ME) will be enabled.
 * Not supported in SwitchX-2.
 * Access: RW
 */
MLXSW_ITEM32(reg, ritr, ipv4_fe, 0x04, 29, 1);

/* reg_ritr_ipv6_fe
 * IPv6 Forwarding Enable.
 * Enables routing of IPv6 traffic on the router interface. When disabled,
 * forwarding is blocked but local traffic (traps and IP2ME) will be enabled.
 * Not supported in SwitchX-2.
 * Access: RW
 */
MLXSW_ITEM32(reg, ritr, ipv6_fe, 0x04, 28, 1);

/* reg_ritr_virtual_router
 * Virtual router ID associated with the router interface.
 * Access: RW
 */
MLXSW_ITEM32(reg, ritr, virtual_router, 0x04, 0, 16);

/* reg_ritr_mtu
 * Router interface MTU.
 * Access: RW
 */
MLXSW_ITEM32(reg, ritr, mtu, 0x34, 0, 16);

/* reg_ritr_if_swid
 * Switch partition ID.
 * Access: RW
 */
MLXSW_ITEM32(reg, ritr, if_swid, 0x08, 24, 8);

/* reg_ritr_if_mac
 * Router interface MAC address.
 * In Spectrum, all MAC addresses must have the same 38 MSBits.
 * Access: RW
 */
MLXSW_ITEM_BUF(reg, ritr, if_mac, 0x12, 6);

/* VLAN Interface */

/* reg_ritr_vlan_if_vid
 * VLAN ID.
 * Access: RW
 */
MLXSW_ITEM32(reg, ritr, vlan_if_vid, 0x08, 0, 12);

/* FID Interface */

/* reg_ritr_fid_if_fid
 * Filtering ID. Used to connect a bridge to the router. Only FIDs from
 * the vFID range are supported.
 * Access: RW
 */
MLXSW_ITEM32(reg, ritr, fid_if_fid, 0x08, 0, 16);

static inline void mlxsw_reg_ritr_fid_set(char *payload,
					  enum mlxsw_reg_ritr_if_type rif_type,
					  u16 fid)
{
	if (rif_type == MLXSW_REG_RITR_FID_IF)
		mlxsw_reg_ritr_fid_if_fid_set(payload, fid);
	else
		mlxsw_reg_ritr_vlan_if_vid_set(payload, fid);
}

/* Sub-port Interface */

/* reg_ritr_sp_if_lag
 * LAG indication. When this bit is set the system_port field holds the
 * LAG identifier.
 * Access: RW
 */
MLXSW_ITEM32(reg, ritr, sp_if_lag, 0x08, 24, 1);

/* reg_ritr_sp_system_port
 * Port unique indentifier. When lag bit is set, this field holds the
 * lag_id in bits 0:9.
 * Access: RW
 */
MLXSW_ITEM32(reg, ritr, sp_if_system_port, 0x08, 0, 16);

/* reg_ritr_sp_if_vid
 * VLAN ID.
 * Access: RW
 */
MLXSW_ITEM32(reg, ritr, sp_if_vid, 0x18, 0, 12);

static inline void mlxsw_reg_ritr_rif_pack(char *payload, u16 rif)
{
	MLXSW_REG_ZERO(ritr, payload);
	mlxsw_reg_ritr_rif_set(payload, rif);
}

static inline void mlxsw_reg_ritr_sp_if_pack(char *payload, bool lag,
					     u16 system_port, u16 vid)
{
	mlxsw_reg_ritr_sp_if_lag_set(payload, lag);
	mlxsw_reg_ritr_sp_if_system_port_set(payload, system_port);
	mlxsw_reg_ritr_sp_if_vid_set(payload, vid);
}

static inline void mlxsw_reg_ritr_pack(char *payload, bool enable,
				       enum mlxsw_reg_ritr_if_type type,
				       u16 rif, u16 mtu, const char *mac)
{
	bool op = enable ? MLXSW_REG_RITR_RIF_CREATE : MLXSW_REG_RITR_RIF_DEL;

	MLXSW_REG_ZERO(ritr, payload);
	mlxsw_reg_ritr_enable_set(payload, enable);
	mlxsw_reg_ritr_ipv4_set(payload, 1);
	mlxsw_reg_ritr_type_set(payload, type);
	mlxsw_reg_ritr_op_set(payload, op);
	mlxsw_reg_ritr_rif_set(payload, rif);
	mlxsw_reg_ritr_ipv4_fe_set(payload, 1);
	mlxsw_reg_ritr_mtu_set(payload, mtu);
	mlxsw_reg_ritr_if_mac_memcpy_to(payload, mac);
}

/* MFCR - Management Fan Control Register
 * --------------------------------------
 * This register controls the settings of the Fan Speed PWM mechanism.
@@ -3924,6 +4192,10 @@ static inline const char *mlxsw_reg_id_str(u16 reg_id)
		return "HTGT";
	case MLXSW_REG_HPKT_ID:
		return "HPKT";
	case MLXSW_REG_RGCR_ID:
		return "RGCR";
	case MLXSW_REG_RITR_ID:
		return "RITR";
	case MLXSW_REG_MFCR_ID:
		return "MFCR";
	case MLXSW_REG_MFSC_ID:
+100 −37
Original line number Diff line number Diff line
@@ -816,6 +816,7 @@ int mlxsw_sp_port_add_vid(struct net_device *dev, __be16 __always_unused proto,
{
	struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
	struct mlxsw_sp_port *mlxsw_sp_vport;
	bool untagged = vid == 1;
	int err;

	/* VLAN 0 is added to HW filter when device goes up, but it is
@@ -859,7 +860,7 @@ int mlxsw_sp_port_add_vid(struct net_device *dev, __be16 __always_unused proto,
		goto err_port_vid_learning_set;
	}

	err = mlxsw_sp_port_vlan_set(mlxsw_sp_vport, vid, vid, true, false);
	err = mlxsw_sp_port_vlan_set(mlxsw_sp_vport, vid, vid, true, untagged);
	if (err) {
		netdev_err(dev, "Failed to set VLAN membership for VID=%d\n",
			   vid);
@@ -889,7 +890,7 @@ int mlxsw_sp_port_add_vid(struct net_device *dev, __be16 __always_unused proto,
	return err;
}

int mlxsw_sp_port_kill_vid(struct net_device *dev,
static int mlxsw_sp_port_kill_vid(struct net_device *dev,
				  __be16 __always_unused proto, u16 vid)
{
	struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
@@ -1844,23 +1845,6 @@ static int mlxsw_sp_port_create(struct mlxsw_sp *mlxsw_sp, u8 local_port,
	return err;
}

static void mlxsw_sp_port_vports_fini(struct mlxsw_sp_port *mlxsw_sp_port)
{
	struct net_device *dev = mlxsw_sp_port->dev;
	struct mlxsw_sp_port *mlxsw_sp_vport, *tmp;

	list_for_each_entry_safe(mlxsw_sp_vport, tmp,
				 &mlxsw_sp_port->vports_list, vport.list) {
		u16 vid = mlxsw_sp_vport_vid_get(mlxsw_sp_vport);

		/* vPorts created for VLAN devices should already be gone
		 * by now, since we unregistered the port netdev.
		 */
		WARN_ON(is_vlan_dev(mlxsw_sp_vport->dev));
		mlxsw_sp_port_kill_vid(dev, 0, vid);
	}
}

static void mlxsw_sp_port_remove(struct mlxsw_sp *mlxsw_sp, u8 local_port)
{
	struct mlxsw_sp_port *mlxsw_sp_port = mlxsw_sp->ports[local_port];
@@ -1871,13 +1855,14 @@ static void mlxsw_sp_port_remove(struct mlxsw_sp *mlxsw_sp, u8 local_port)
	mlxsw_core_port_fini(&mlxsw_sp_port->core_port);
	unregister_netdev(mlxsw_sp_port->dev); /* This calls ndo_stop */
	mlxsw_sp_port_dcb_fini(mlxsw_sp_port);
	mlxsw_sp_port_vports_fini(mlxsw_sp_port);
	mlxsw_sp_port_kill_vid(mlxsw_sp_port->dev, 0, 1);
	mlxsw_sp_port_switchdev_fini(mlxsw_sp_port);
	mlxsw_sp_port_swid_set(mlxsw_sp_port, MLXSW_PORT_SWID_DISABLED_PORT);
	mlxsw_sp_port_module_unmap(mlxsw_sp, mlxsw_sp_port->local_port);
	free_percpu(mlxsw_sp_port->pcpu_stats);
	kfree(mlxsw_sp_port->untagged_vlans);
	kfree(mlxsw_sp_port->active_vlans);
	WARN_ON_ONCE(!list_empty(&mlxsw_sp_port->vports_list));
	free_netdev(mlxsw_sp_port->dev);
}

@@ -2114,11 +2099,8 @@ static void mlxsw_sp_pude_event_func(const struct mlxsw_reg_info *reg,

	local_port = mlxsw_reg_pude_local_port_get(pude_pl);
	mlxsw_sp_port = mlxsw_sp->ports[local_port];
	if (!mlxsw_sp_port) {
		dev_warn(mlxsw_sp->bus_info->dev, "Port %d: Link event received for non-existent port\n",
			 local_port);
	if (!mlxsw_sp_port)
		return;
	}

	status = mlxsw_reg_pude_oper_status_get(pude_pl);
	if (status == MLXSW_PORT_OPER_STATUS_UP) {
@@ -2273,6 +2255,31 @@ static const struct mlxsw_rx_listener mlxsw_sp_rx_listener[] = {
		.local_port = MLXSW_PORT_DONT_CARE,
		.trap_id = MLXSW_TRAP_ID_IGMP_V3_REPORT,
	},
	{
		.func = mlxsw_sp_rx_listener_func,
		.local_port = MLXSW_PORT_DONT_CARE,
		.trap_id = MLXSW_TRAP_ID_ARPBC,
	},
	{
		.func = mlxsw_sp_rx_listener_func,
		.local_port = MLXSW_PORT_DONT_CARE,
		.trap_id = MLXSW_TRAP_ID_ARPUC,
	},
	{
		.func = mlxsw_sp_rx_listener_func,
		.local_port = MLXSW_PORT_DONT_CARE,
		.trap_id = MLXSW_TRAP_ID_IP2ME,
	},
	{
		.func = mlxsw_sp_rx_listener_func,
		.local_port = MLXSW_PORT_DONT_CARE,
		.trap_id = MLXSW_TRAP_ID_RTR_INGRESS0,
	},
	{
		.func = mlxsw_sp_rx_listener_func,
		.local_port = MLXSW_PORT_DONT_CARE,
		.trap_id = MLXSW_TRAP_ID_HOST_MISS_IPV4,
	},
};

static int mlxsw_sp_traps_init(struct mlxsw_sp *mlxsw_sp)
@@ -2313,7 +2320,7 @@ static int mlxsw_sp_traps_init(struct mlxsw_sp *mlxsw_sp)
					  mlxsw_sp);
err_rx_listener_register:
	for (i--; i >= 0; i--) {
		mlxsw_reg_hpkt_pack(hpkt_pl, MLXSW_REG_HPKT_ACTION_FORWARD,
		mlxsw_reg_hpkt_pack(hpkt_pl, MLXSW_REG_HPKT_ACTION_DISCARD,
				    mlxsw_sp_rx_listener[i].trap_id);
		mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(hpkt), hpkt_pl);

@@ -2330,7 +2337,7 @@ static void mlxsw_sp_traps_fini(struct mlxsw_sp *mlxsw_sp)
	int i;

	for (i = 0; i < ARRAY_SIZE(mlxsw_sp_rx_listener); i++) {
		mlxsw_reg_hpkt_pack(hpkt_pl, MLXSW_REG_HPKT_ACTION_FORWARD,
		mlxsw_reg_hpkt_pack(hpkt_pl, MLXSW_REG_HPKT_ACTION_DISCARD,
				    mlxsw_sp_rx_listener[i].trap_id);
		mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(hpkt), hpkt_pl);

@@ -2420,16 +2427,10 @@ static int mlxsw_sp_init(struct mlxsw_core *mlxsw_core,
		return err;
	}

	err = mlxsw_sp_ports_create(mlxsw_sp);
	if (err) {
		dev_err(mlxsw_sp->bus_info->dev, "Failed to create ports\n");
		return err;
	}

	err = mlxsw_sp_event_register(mlxsw_sp, MLXSW_TRAP_ID_PUDE);
	if (err) {
		dev_err(mlxsw_sp->bus_info->dev, "Failed to register for PUDE events\n");
		goto err_event_register;
		return err;
	}

	err = mlxsw_sp_traps_init(mlxsw_sp);
@@ -2462,8 +2463,24 @@ static int mlxsw_sp_init(struct mlxsw_core *mlxsw_core,
		goto err_switchdev_init;
	}

	err = mlxsw_sp_router_init(mlxsw_sp);
	if (err) {
		dev_err(mlxsw_sp->bus_info->dev, "Failed to initialize router\n");
		goto err_router_init;
	}

	err = mlxsw_sp_ports_create(mlxsw_sp);
	if (err) {
		dev_err(mlxsw_sp->bus_info->dev, "Failed to create ports\n");
		goto err_ports_create;
	}

	return 0;

err_ports_create:
	mlxsw_sp_router_fini(mlxsw_sp);
err_router_init:
	mlxsw_sp_switchdev_fini(mlxsw_sp);
err_switchdev_init:
err_lag_init:
	mlxsw_sp_buffers_fini(mlxsw_sp);
@@ -2472,21 +2489,23 @@ static int mlxsw_sp_init(struct mlxsw_core *mlxsw_core,
	mlxsw_sp_traps_fini(mlxsw_sp);
err_rx_listener_register:
	mlxsw_sp_event_unregister(mlxsw_sp, MLXSW_TRAP_ID_PUDE);
err_event_register:
	mlxsw_sp_ports_remove(mlxsw_sp);
	return err;
}

static void mlxsw_sp_fini(struct mlxsw_core *mlxsw_core)
{
	struct mlxsw_sp *mlxsw_sp = mlxsw_core_driver_priv(mlxsw_core);
	int i;

	mlxsw_sp_ports_remove(mlxsw_sp);
	mlxsw_sp_router_fini(mlxsw_sp);
	mlxsw_sp_switchdev_fini(mlxsw_sp);
	mlxsw_sp_buffers_fini(mlxsw_sp);
	mlxsw_sp_traps_fini(mlxsw_sp);
	mlxsw_sp_event_unregister(mlxsw_sp, MLXSW_TRAP_ID_PUDE);
	mlxsw_sp_ports_remove(mlxsw_sp);
	WARN_ON(!list_empty(&mlxsw_sp->fids));
	for (i = 0; i < MLXSW_SP_RIF_MAX; i++)
		WARN_ON_ONCE(mlxsw_sp->rifs[i]);
}

static struct mlxsw_config_profile mlxsw_sp_config_profile = {
@@ -2810,6 +2829,45 @@ static int mlxsw_sp_port_lag_index_get(struct mlxsw_sp *mlxsw_sp,
	return -EBUSY;
}

static void
mlxsw_sp_port_pvid_vport_lag_join(struct mlxsw_sp_port *mlxsw_sp_port,
				  u16 lag_id)
{
	struct mlxsw_sp_port *mlxsw_sp_vport;
	struct mlxsw_sp_fid *f;

	mlxsw_sp_vport = mlxsw_sp_port_vport_find(mlxsw_sp_port, 1);
	if (WARN_ON(!mlxsw_sp_vport))
		return;

	/* If vPort is assigned a RIF, then leave it since it's no
	 * longer valid.
	 */
	f = mlxsw_sp_vport_fid_get(mlxsw_sp_vport);
	if (f)
		f->leave(mlxsw_sp_vport);

	mlxsw_sp_vport->lag_id = lag_id;
	mlxsw_sp_vport->lagged = 1;
}

static void
mlxsw_sp_port_pvid_vport_lag_leave(struct mlxsw_sp_port *mlxsw_sp_port)
{
	struct mlxsw_sp_port *mlxsw_sp_vport;
	struct mlxsw_sp_fid *f;

	mlxsw_sp_vport = mlxsw_sp_port_vport_find(mlxsw_sp_port, 1);
	if (WARN_ON(!mlxsw_sp_vport))
		return;

	f = mlxsw_sp_vport_fid_get(mlxsw_sp_vport);
	if (f)
		f->leave(mlxsw_sp_vport);

	mlxsw_sp_vport->lagged = 0;
}

static int mlxsw_sp_port_lag_join(struct mlxsw_sp_port *mlxsw_sp_port,
				  struct net_device *lag_dev)
{
@@ -2845,6 +2903,9 @@ static int mlxsw_sp_port_lag_join(struct mlxsw_sp_port *mlxsw_sp_port,
	mlxsw_sp_port->lag_id = lag_id;
	mlxsw_sp_port->lagged = 1;
	lag->ref_count++;

	mlxsw_sp_port_pvid_vport_lag_join(mlxsw_sp_port, lag_id);

	return 0;

err_col_port_enable:
@@ -2882,6 +2943,8 @@ static void mlxsw_sp_port_lag_leave(struct mlxsw_sp_port *mlxsw_sp_port,
				     mlxsw_sp_port->local_port);
	mlxsw_sp_port->lagged = 0;
	lag->ref_count--;

	mlxsw_sp_port_pvid_vport_lag_leave(mlxsw_sp_port);
}

static int mlxsw_sp_lag_dist_port_add(struct mlxsw_sp_port *mlxsw_sp_port,
+24 −2
Original line number Diff line number Diff line
@@ -74,6 +74,8 @@

#define MLXSW_SP_CELL_FACTOR 2	/* 2 * cell_size / (IPG + cell_size + 1) */

#define MLXSW_SP_RIF_MAX 800

static inline u16 mlxsw_sp_pfc_delay_get(int mtu, u16 delay)
{
	delay = MLXSW_SP_BYTES_TO_CELLS(DIV_ROUND_UP(delay, BITS_PER_BYTE));
@@ -96,6 +98,11 @@ struct mlxsw_sp_fid {
	u16 vid;
};

struct mlxsw_sp_rif {
	struct net_device *dev;
	u16 rif;
};

struct mlxsw_sp_mid {
	struct list_head list;
	unsigned char addr[ETH_ALEN];
@@ -167,6 +174,7 @@ struct mlxsw_sp {
		DECLARE_BITMAP(mapped, MLXSW_SP_MID_MAX);
	} br_mids;
	struct list_head fids;	/* VLAN-aware bridge FIDs */
	struct mlxsw_sp_rif *rifs[MLXSW_SP_RIF_MAX];
	struct mlxsw_sp_port **ports;
	struct mlxsw_core *core;
	const struct mlxsw_bus_info *bus_info;
@@ -325,6 +333,19 @@ mlxsw_sp_port_vport_find_by_fid(const struct mlxsw_sp_port *mlxsw_sp_port,
	return NULL;
}

static inline struct mlxsw_sp_rif *
mlxsw_sp_rif_find_by_dev(const struct mlxsw_sp *mlxsw_sp,
			 const struct net_device *dev)
{
	int i;

	for (i = 0; i < MLXSW_SP_RIF_MAX; i++)
		if (mlxsw_sp->rifs[i] && mlxsw_sp->rifs[i]->dev == dev)
			return mlxsw_sp->rifs[i];

	return NULL;
}

enum mlxsw_sp_flood_table {
	MLXSW_SP_FLOOD_TABLE_UC,
	MLXSW_SP_FLOOD_TABLE_BM,
@@ -377,8 +398,6 @@ int mlxsw_sp_port_vlan_set(struct mlxsw_sp_port *mlxsw_sp_port, u16 vid_begin,
			   u16 vid_end, bool is_member, bool untagged);
int mlxsw_sp_port_add_vid(struct net_device *dev, __be16 __always_unused proto,
			  u16 vid);
int mlxsw_sp_port_kill_vid(struct net_device *dev,
			   __be16 __always_unused proto, u16 vid);
int mlxsw_sp_vport_flood_set(struct mlxsw_sp_port *mlxsw_sp_vport, u16 fid,
			     bool set);
void mlxsw_sp_port_active_vlans_del(struct mlxsw_sp_port *mlxsw_sp_port);
@@ -413,4 +432,7 @@ static inline void mlxsw_sp_port_dcb_fini(struct mlxsw_sp_port *mlxsw_sp_port)

#endif

int mlxsw_sp_router_init(struct mlxsw_sp *mlxsw_sp);
void mlxsw_sp_router_fini(struct mlxsw_sp *mlxsw_sp);

#endif
+68 −0
Original line number Diff line number Diff line
/*
 * drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c
 * Copyright (c) 2016 Mellanox Technologies. All rights reserved.
 * Copyright (c) 2016 Jiri Pirko <jiri@mellanox.com>
 * Copyright (c) 2016 Ido Schimmel <idosch@mellanox.com>
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. Neither the names of the copyright holders nor the names of its
 *    contributors may be used to endorse or promote products derived from
 *    this software without specific prior written permission.
 *
 * Alternatively, this software may be distributed under the terms of the
 * GNU General Public License ("GPL") version 2 as published by the Free
 * Software Foundation.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

#include <linux/kernel.h>
#include <linux/types.h>

#include "spectrum.h"
#include "core.h"
#include "reg.h"

static int __mlxsw_sp_router_init(struct mlxsw_sp *mlxsw_sp)
{
	char rgcr_pl[MLXSW_REG_RGCR_LEN];

	mlxsw_reg_rgcr_pack(rgcr_pl, true);
	mlxsw_reg_rgcr_max_router_interfaces_set(rgcr_pl, MLXSW_SP_RIF_MAX);
	return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(rgcr), rgcr_pl);
}

static void __mlxsw_sp_router_fini(struct mlxsw_sp *mlxsw_sp)
{
	char rgcr_pl[MLXSW_REG_RGCR_LEN];

	mlxsw_reg_rgcr_pack(rgcr_pl, false);
	mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(rgcr), rgcr_pl);
}

int mlxsw_sp_router_init(struct mlxsw_sp *mlxsw_sp)
{
	return __mlxsw_sp_router_init(mlxsw_sp);
}

void mlxsw_sp_router_fini(struct mlxsw_sp *mlxsw_sp)
{
	__mlxsw_sp_router_fini(mlxsw_sp);
}
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