spectrum.c 146.1 KB
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// SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0
/* Copyright (c) 2015-2018 Mellanox Technologies. All rights reserved */
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#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/types.h>
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#include <linux/pci.h>
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#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/ethtool.h>
#include <linux/slab.h>
#include <linux/device.h>
#include <linux/skbuff.h>
#include <linux/if_vlan.h>
#include <linux/if_bridge.h>
#include <linux/workqueue.h>
#include <linux/jiffies.h>
#include <linux/bitops.h>
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#include <linux/list.h>
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#include <linux/notifier.h>
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#include <linux/dcbnl.h>
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#include <linux/inetdevice.h>
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#include <linux/netlink.h>
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#include <linux/random.h>
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#include <net/switchdev.h>
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#include <net/pkt_cls.h>
#include <net/tc_act/tc_mirred.h>
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#include <net/netevent.h>
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#include <net/tc_act/tc_sample.h>
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#include <net/addrconf.h>
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#include "spectrum.h"
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#include "pci.h"
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#include "core.h"
#include "reg.h"
#include "port.h"
#include "trap.h"
#include "txheader.h"
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#include "spectrum_cnt.h"
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#include "spectrum_dpipe.h"
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#include "spectrum_acl_flex_actions.h"
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#include "spectrum_span.h"
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#include "../mlxfw/mlxfw.h"
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#define MLXSW_SP_FWREV_MINOR_TO_BRANCH(minor) ((minor) / 100)
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#define MLXSW_SP1_FWREV_MAJOR 13
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#define MLXSW_SP1_FWREV_MINOR 1703
#define MLXSW_SP1_FWREV_SUBMINOR 4
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#define MLXSW_SP1_FWREV_CAN_RESET_MINOR 1702
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static const struct mlxsw_fw_rev mlxsw_sp1_fw_rev = {
	.major = MLXSW_SP1_FWREV_MAJOR,
	.minor = MLXSW_SP1_FWREV_MINOR,
	.subminor = MLXSW_SP1_FWREV_SUBMINOR,
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	.can_reset_minor = MLXSW_SP1_FWREV_CAN_RESET_MINOR,
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};

#define MLXSW_SP1_FW_FILENAME \
	"mellanox/mlxsw_spectrum-" __stringify(MLXSW_SP1_FWREV_MAJOR) \
	"." __stringify(MLXSW_SP1_FWREV_MINOR) \
	"." __stringify(MLXSW_SP1_FWREV_SUBMINOR) ".mfa2"
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static const char mlxsw_sp1_driver_name[] = "mlxsw_spectrum";
static const char mlxsw_sp2_driver_name[] = "mlxsw_spectrum2";
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static const char mlxsw_sp_driver_version[] = "1.0";

/* tx_hdr_version
 * Tx header version.
 * Must be set to 1.
 */
MLXSW_ITEM32(tx, hdr, version, 0x00, 28, 4);

/* tx_hdr_ctl
 * Packet control type.
 * 0 - Ethernet control (e.g. EMADs, LACP)
 * 1 - Ethernet data
 */
MLXSW_ITEM32(tx, hdr, ctl, 0x00, 26, 2);

/* tx_hdr_proto
 * Packet protocol type. Must be set to 1 (Ethernet).
 */
MLXSW_ITEM32(tx, hdr, proto, 0x00, 21, 3);

/* tx_hdr_rx_is_router
 * Packet is sent from the router. Valid for data packets only.
 */
MLXSW_ITEM32(tx, hdr, rx_is_router, 0x00, 19, 1);

/* tx_hdr_fid_valid
 * Indicates if the 'fid' field is valid and should be used for
 * forwarding lookup. Valid for data packets only.
 */
MLXSW_ITEM32(tx, hdr, fid_valid, 0x00, 16, 1);

/* tx_hdr_swid
 * Switch partition ID. Must be set to 0.
 */
MLXSW_ITEM32(tx, hdr, swid, 0x00, 12, 3);

/* tx_hdr_control_tclass
 * Indicates if the packet should use the control TClass and not one
 * of the data TClasses.
 */
MLXSW_ITEM32(tx, hdr, control_tclass, 0x00, 6, 1);

/* tx_hdr_etclass
 * Egress TClass to be used on the egress device on the egress port.
 */
MLXSW_ITEM32(tx, hdr, etclass, 0x00, 0, 4);

/* tx_hdr_port_mid
 * Destination local port for unicast packets.
 * Destination multicast ID for multicast packets.
 *
 * Control packets are directed to a specific egress port, while data
 * packets are transmitted through the CPU port (0) into the switch partition,
 * where forwarding rules are applied.
 */
MLXSW_ITEM32(tx, hdr, port_mid, 0x04, 16, 16);

/* tx_hdr_fid
 * Forwarding ID used for L2 forwarding lookup. Valid only if 'fid_valid' is
 * set, otherwise calculated based on the packet's VID using VID to FID mapping.
 * Valid for data packets only.
 */
MLXSW_ITEM32(tx, hdr, fid, 0x08, 0, 16);

/* tx_hdr_type
 * 0 - Data packets
 * 6 - Control packets
 */
MLXSW_ITEM32(tx, hdr, type, 0x0C, 0, 4);

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struct mlxsw_sp_mlxfw_dev {
	struct mlxfw_dev mlxfw_dev;
	struct mlxsw_sp *mlxsw_sp;
};

static int mlxsw_sp_component_query(struct mlxfw_dev *mlxfw_dev,
				    u16 component_index, u32 *p_max_size,
				    u8 *p_align_bits, u16 *p_max_write_size)
{
	struct mlxsw_sp_mlxfw_dev *mlxsw_sp_mlxfw_dev =
		container_of(mlxfw_dev, struct mlxsw_sp_mlxfw_dev, mlxfw_dev);
	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_mlxfw_dev->mlxsw_sp;
	char mcqi_pl[MLXSW_REG_MCQI_LEN];
	int err;

	mlxsw_reg_mcqi_pack(mcqi_pl, component_index);
	err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(mcqi), mcqi_pl);
	if (err)
		return err;
	mlxsw_reg_mcqi_unpack(mcqi_pl, p_max_size, p_align_bits,
			      p_max_write_size);

	*p_align_bits = max_t(u8, *p_align_bits, 2);
	*p_max_write_size = min_t(u16, *p_max_write_size,
				  MLXSW_REG_MCDA_MAX_DATA_LEN);
	return 0;
}

static int mlxsw_sp_fsm_lock(struct mlxfw_dev *mlxfw_dev, u32 *fwhandle)
{
	struct mlxsw_sp_mlxfw_dev *mlxsw_sp_mlxfw_dev =
		container_of(mlxfw_dev, struct mlxsw_sp_mlxfw_dev, mlxfw_dev);
	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_mlxfw_dev->mlxsw_sp;
	char mcc_pl[MLXSW_REG_MCC_LEN];
	u8 control_state;
	int err;

	mlxsw_reg_mcc_pack(mcc_pl, 0, 0, 0, 0);
	err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(mcc), mcc_pl);
	if (err)
		return err;

	mlxsw_reg_mcc_unpack(mcc_pl, fwhandle, NULL, &control_state);
	if (control_state != MLXFW_FSM_STATE_IDLE)
		return -EBUSY;

	mlxsw_reg_mcc_pack(mcc_pl,
			   MLXSW_REG_MCC_INSTRUCTION_LOCK_UPDATE_HANDLE,
			   0, *fwhandle, 0);
	return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(mcc), mcc_pl);
}

static int mlxsw_sp_fsm_component_update(struct mlxfw_dev *mlxfw_dev,
					 u32 fwhandle, u16 component_index,
					 u32 component_size)
{
	struct mlxsw_sp_mlxfw_dev *mlxsw_sp_mlxfw_dev =
		container_of(mlxfw_dev, struct mlxsw_sp_mlxfw_dev, mlxfw_dev);
	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_mlxfw_dev->mlxsw_sp;
	char mcc_pl[MLXSW_REG_MCC_LEN];

	mlxsw_reg_mcc_pack(mcc_pl, MLXSW_REG_MCC_INSTRUCTION_UPDATE_COMPONENT,
			   component_index, fwhandle, component_size);
	return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(mcc), mcc_pl);
}

static int mlxsw_sp_fsm_block_download(struct mlxfw_dev *mlxfw_dev,
				       u32 fwhandle, u8 *data, u16 size,
				       u32 offset)
{
	struct mlxsw_sp_mlxfw_dev *mlxsw_sp_mlxfw_dev =
		container_of(mlxfw_dev, struct mlxsw_sp_mlxfw_dev, mlxfw_dev);
	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_mlxfw_dev->mlxsw_sp;
	char mcda_pl[MLXSW_REG_MCDA_LEN];

	mlxsw_reg_mcda_pack(mcda_pl, fwhandle, offset, size, data);
	return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(mcda), mcda_pl);
}

static int mlxsw_sp_fsm_component_verify(struct mlxfw_dev *mlxfw_dev,
					 u32 fwhandle, u16 component_index)
{
	struct mlxsw_sp_mlxfw_dev *mlxsw_sp_mlxfw_dev =
		container_of(mlxfw_dev, struct mlxsw_sp_mlxfw_dev, mlxfw_dev);
	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_mlxfw_dev->mlxsw_sp;
	char mcc_pl[MLXSW_REG_MCC_LEN];

	mlxsw_reg_mcc_pack(mcc_pl, MLXSW_REG_MCC_INSTRUCTION_VERIFY_COMPONENT,
			   component_index, fwhandle, 0);
	return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(mcc), mcc_pl);
}

static int mlxsw_sp_fsm_activate(struct mlxfw_dev *mlxfw_dev, u32 fwhandle)
{
	struct mlxsw_sp_mlxfw_dev *mlxsw_sp_mlxfw_dev =
		container_of(mlxfw_dev, struct mlxsw_sp_mlxfw_dev, mlxfw_dev);
	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_mlxfw_dev->mlxsw_sp;
	char mcc_pl[MLXSW_REG_MCC_LEN];

	mlxsw_reg_mcc_pack(mcc_pl, MLXSW_REG_MCC_INSTRUCTION_ACTIVATE, 0,
			   fwhandle, 0);
	return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(mcc), mcc_pl);
}

static int mlxsw_sp_fsm_query_state(struct mlxfw_dev *mlxfw_dev, u32 fwhandle,
				    enum mlxfw_fsm_state *fsm_state,
				    enum mlxfw_fsm_state_err *fsm_state_err)
{
	struct mlxsw_sp_mlxfw_dev *mlxsw_sp_mlxfw_dev =
		container_of(mlxfw_dev, struct mlxsw_sp_mlxfw_dev, mlxfw_dev);
	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_mlxfw_dev->mlxsw_sp;
	char mcc_pl[MLXSW_REG_MCC_LEN];
	u8 control_state;
	u8 error_code;
	int err;

	mlxsw_reg_mcc_pack(mcc_pl, 0, 0, fwhandle, 0);
	err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(mcc), mcc_pl);
	if (err)
		return err;

	mlxsw_reg_mcc_unpack(mcc_pl, NULL, &error_code, &control_state);
	*fsm_state = control_state;
	*fsm_state_err = min_t(enum mlxfw_fsm_state_err, error_code,
			       MLXFW_FSM_STATE_ERR_MAX);
	return 0;
}

static void mlxsw_sp_fsm_cancel(struct mlxfw_dev *mlxfw_dev, u32 fwhandle)
{
	struct mlxsw_sp_mlxfw_dev *mlxsw_sp_mlxfw_dev =
		container_of(mlxfw_dev, struct mlxsw_sp_mlxfw_dev, mlxfw_dev);
	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_mlxfw_dev->mlxsw_sp;
	char mcc_pl[MLXSW_REG_MCC_LEN];

	mlxsw_reg_mcc_pack(mcc_pl, MLXSW_REG_MCC_INSTRUCTION_CANCEL, 0,
			   fwhandle, 0);
	mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(mcc), mcc_pl);
}

static void mlxsw_sp_fsm_release(struct mlxfw_dev *mlxfw_dev, u32 fwhandle)
{
	struct mlxsw_sp_mlxfw_dev *mlxsw_sp_mlxfw_dev =
		container_of(mlxfw_dev, struct mlxsw_sp_mlxfw_dev, mlxfw_dev);
	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_mlxfw_dev->mlxsw_sp;
	char mcc_pl[MLXSW_REG_MCC_LEN];

	mlxsw_reg_mcc_pack(mcc_pl,
			   MLXSW_REG_MCC_INSTRUCTION_RELEASE_UPDATE_HANDLE, 0,
			   fwhandle, 0);
	mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(mcc), mcc_pl);
}

static const struct mlxfw_dev_ops mlxsw_sp_mlxfw_dev_ops = {
	.component_query	= mlxsw_sp_component_query,
	.fsm_lock		= mlxsw_sp_fsm_lock,
	.fsm_component_update	= mlxsw_sp_fsm_component_update,
	.fsm_block_download	= mlxsw_sp_fsm_block_download,
	.fsm_component_verify	= mlxsw_sp_fsm_component_verify,
	.fsm_activate		= mlxsw_sp_fsm_activate,
	.fsm_query_state	= mlxsw_sp_fsm_query_state,
	.fsm_cancel		= mlxsw_sp_fsm_cancel,
	.fsm_release		= mlxsw_sp_fsm_release
};

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static int mlxsw_sp_firmware_flash(struct mlxsw_sp *mlxsw_sp,
				   const struct firmware *firmware)
{
	struct mlxsw_sp_mlxfw_dev mlxsw_sp_mlxfw_dev = {
		.mlxfw_dev = {
			.ops = &mlxsw_sp_mlxfw_dev_ops,
			.psid = mlxsw_sp->bus_info->psid,
			.psid_size = strlen(mlxsw_sp->bus_info->psid),
		},
		.mlxsw_sp = mlxsw_sp
	};
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	int err;

	mlxsw_core_fw_flash_start(mlxsw_sp->core);
	err = mlxfw_firmware_flash(&mlxsw_sp_mlxfw_dev.mlxfw_dev, firmware);
	mlxsw_core_fw_flash_end(mlxsw_sp->core);
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	return err;
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}

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static int mlxsw_sp_fw_rev_validate(struct mlxsw_sp *mlxsw_sp)
{
	const struct mlxsw_fw_rev *rev = &mlxsw_sp->bus_info->fw_rev;
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	const struct mlxsw_fw_rev *req_rev = mlxsw_sp->req_rev;
	const char *fw_filename = mlxsw_sp->fw_filename;
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	const struct firmware *firmware;
	int err;

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	/* Don't check if driver does not require it */
	if (!req_rev || !fw_filename)
		return 0;

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	/* Validate driver & FW are compatible */
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	if (rev->major != req_rev->major) {
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		WARN(1, "Mismatch in major FW version [%d:%d] is never expected; Please contact support\n",
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		     rev->major, req_rev->major);
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		return -EINVAL;
	}
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	if (MLXSW_SP_FWREV_MINOR_TO_BRANCH(rev->minor) ==
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	    MLXSW_SP_FWREV_MINOR_TO_BRANCH(req_rev->minor) &&
	    (rev->minor > req_rev->minor ||
	     (rev->minor == req_rev->minor &&
	      rev->subminor >= req_rev->subminor)))
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		return 0;

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	dev_info(mlxsw_sp->bus_info->dev, "The firmware version %d.%d.%d is incompatible with the driver\n",
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		 rev->major, rev->minor, rev->subminor);
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	dev_info(mlxsw_sp->bus_info->dev, "Flashing firmware using file %s\n",
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		 fw_filename);
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	err = request_firmware_direct(&firmware, fw_filename,
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				      mlxsw_sp->bus_info->dev);
	if (err) {
		dev_err(mlxsw_sp->bus_info->dev, "Could not request firmware file %s\n",
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			fw_filename);
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		return err;
	}

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	err = mlxsw_sp_firmware_flash(mlxsw_sp, firmware);
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	release_firmware(firmware);
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	if (err)
		dev_err(mlxsw_sp->bus_info->dev, "Could not upgrade firmware\n");

	/* On FW flash success, tell the caller FW reset is needed
	 * if current FW supports it.
	 */
	if (rev->minor >= req_rev->can_reset_minor)
		return err ? err : -EAGAIN;
	else
		return 0;
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}

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int mlxsw_sp_flow_counter_get(struct mlxsw_sp *mlxsw_sp,
			      unsigned int counter_index, u64 *packets,
			      u64 *bytes)
{
	char mgpc_pl[MLXSW_REG_MGPC_LEN];
	int err;

	mlxsw_reg_mgpc_pack(mgpc_pl, counter_index, MLXSW_REG_MGPC_OPCODE_NOP,
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			    MLXSW_REG_FLOW_COUNTER_SET_TYPE_PACKETS_BYTES);
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	err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(mgpc), mgpc_pl);
	if (err)
		return err;
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	if (packets)
		*packets = mlxsw_reg_mgpc_packet_counter_get(mgpc_pl);
	if (bytes)
		*bytes = mlxsw_reg_mgpc_byte_counter_get(mgpc_pl);
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	return 0;
}

static int mlxsw_sp_flow_counter_clear(struct mlxsw_sp *mlxsw_sp,
				       unsigned int counter_index)
{
	char mgpc_pl[MLXSW_REG_MGPC_LEN];

	mlxsw_reg_mgpc_pack(mgpc_pl, counter_index, MLXSW_REG_MGPC_OPCODE_CLEAR,
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			    MLXSW_REG_FLOW_COUNTER_SET_TYPE_PACKETS_BYTES);
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	return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(mgpc), mgpc_pl);
}

int mlxsw_sp_flow_counter_alloc(struct mlxsw_sp *mlxsw_sp,
				unsigned int *p_counter_index)
{
	int err;

	err = mlxsw_sp_counter_alloc(mlxsw_sp, MLXSW_SP_COUNTER_SUB_POOL_FLOW,
				     p_counter_index);
	if (err)
		return err;
	err = mlxsw_sp_flow_counter_clear(mlxsw_sp, *p_counter_index);
	if (err)
		goto err_counter_clear;
	return 0;

err_counter_clear:
	mlxsw_sp_counter_free(mlxsw_sp, MLXSW_SP_COUNTER_SUB_POOL_FLOW,
			      *p_counter_index);
	return err;
}

void mlxsw_sp_flow_counter_free(struct mlxsw_sp *mlxsw_sp,
				unsigned int counter_index)
{
	 mlxsw_sp_counter_free(mlxsw_sp, MLXSW_SP_COUNTER_SUB_POOL_FLOW,
			       counter_index);
}

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static void mlxsw_sp_txhdr_construct(struct sk_buff *skb,
				     const struct mlxsw_tx_info *tx_info)
{
	char *txhdr = skb_push(skb, MLXSW_TXHDR_LEN);

	memset(txhdr, 0, MLXSW_TXHDR_LEN);

	mlxsw_tx_hdr_version_set(txhdr, MLXSW_TXHDR_VERSION_1);
	mlxsw_tx_hdr_ctl_set(txhdr, MLXSW_TXHDR_ETH_CTL);
	mlxsw_tx_hdr_proto_set(txhdr, MLXSW_TXHDR_PROTO_ETH);
	mlxsw_tx_hdr_swid_set(txhdr, 0);
	mlxsw_tx_hdr_control_tclass_set(txhdr, 1);
	mlxsw_tx_hdr_port_mid_set(txhdr, tx_info->local_port);
	mlxsw_tx_hdr_type_set(txhdr, MLXSW_TXHDR_TYPE_CONTROL);
}

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enum mlxsw_reg_spms_state mlxsw_sp_stp_spms_state(u8 state)
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{
	switch (state) {
	case BR_STATE_FORWARDING:
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		return MLXSW_REG_SPMS_STATE_FORWARDING;
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	case BR_STATE_LEARNING:
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		return MLXSW_REG_SPMS_STATE_LEARNING;
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	case BR_STATE_LISTENING: /* fall-through */
	case BR_STATE_DISABLED: /* fall-through */
	case BR_STATE_BLOCKING:
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		return MLXSW_REG_SPMS_STATE_DISCARDING;
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	default:
		BUG();
	}
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}

int mlxsw_sp_port_vid_stp_set(struct mlxsw_sp_port *mlxsw_sp_port, u16 vid,
			      u8 state)
{
	enum mlxsw_reg_spms_state spms_state = mlxsw_sp_stp_spms_state(state);
	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
	char *spms_pl;
	int err;
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	spms_pl = kmalloc(MLXSW_REG_SPMS_LEN, GFP_KERNEL);
	if (!spms_pl)
		return -ENOMEM;
	mlxsw_reg_spms_pack(spms_pl, mlxsw_sp_port->local_port);
	mlxsw_reg_spms_vid_pack(spms_pl, vid, spms_state);

	err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(spms), spms_pl);
	kfree(spms_pl);
	return err;
}

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static int mlxsw_sp_base_mac_get(struct mlxsw_sp *mlxsw_sp)
{
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	char spad_pl[MLXSW_REG_SPAD_LEN] = {0};
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	int err;

	err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(spad), spad_pl);
	if (err)
		return err;
	mlxsw_reg_spad_base_mac_memcpy_from(spad_pl, mlxsw_sp->base_mac);
	return 0;
}

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static int mlxsw_sp_port_sample_set(struct mlxsw_sp_port *mlxsw_sp_port,
				    bool enable, u32 rate)
{
	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
	char mpsc_pl[MLXSW_REG_MPSC_LEN];

	mlxsw_reg_mpsc_pack(mpsc_pl, mlxsw_sp_port->local_port, enable, rate);
	return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(mpsc), mpsc_pl);
}

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static int mlxsw_sp_port_admin_status_set(struct mlxsw_sp_port *mlxsw_sp_port,
					  bool is_up)
{
	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
	char paos_pl[MLXSW_REG_PAOS_LEN];

	mlxsw_reg_paos_pack(paos_pl, mlxsw_sp_port->local_port,
			    is_up ? MLXSW_PORT_ADMIN_STATUS_UP :
			    MLXSW_PORT_ADMIN_STATUS_DOWN);
	return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(paos), paos_pl);
}

static int mlxsw_sp_port_dev_addr_set(struct mlxsw_sp_port *mlxsw_sp_port,
				      unsigned char *addr)
{
	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
	char ppad_pl[MLXSW_REG_PPAD_LEN];

	mlxsw_reg_ppad_pack(ppad_pl, true, mlxsw_sp_port->local_port);
	mlxsw_reg_ppad_mac_memcpy_to(ppad_pl, addr);
	return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(ppad), ppad_pl);
}

static int mlxsw_sp_port_dev_addr_init(struct mlxsw_sp_port *mlxsw_sp_port)
{
	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
	unsigned char *addr = mlxsw_sp_port->dev->dev_addr;

	ether_addr_copy(addr, mlxsw_sp->base_mac);
	addr[ETH_ALEN - 1] += mlxsw_sp_port->local_port;
	return mlxsw_sp_port_dev_addr_set(mlxsw_sp_port, addr);
}

static int mlxsw_sp_port_mtu_set(struct mlxsw_sp_port *mlxsw_sp_port, u16 mtu)
{
	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
	char pmtu_pl[MLXSW_REG_PMTU_LEN];
	int max_mtu;
	int err;

	mtu += MLXSW_TXHDR_LEN + ETH_HLEN;
	mlxsw_reg_pmtu_pack(pmtu_pl, mlxsw_sp_port->local_port, 0);
	err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(pmtu), pmtu_pl);
	if (err)
		return err;
	max_mtu = mlxsw_reg_pmtu_max_mtu_get(pmtu_pl);

	if (mtu > max_mtu)
		return -EINVAL;

	mlxsw_reg_pmtu_pack(pmtu_pl, mlxsw_sp_port->local_port, mtu);
	return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(pmtu), pmtu_pl);
}

556 557 558
static int mlxsw_sp_port_swid_set(struct mlxsw_sp_port *mlxsw_sp_port, u8 swid)
{
	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
559
	char pspa_pl[MLXSW_REG_PSPA_LEN];
560

561 562
	mlxsw_reg_pspa_pack(pspa_pl, swid, mlxsw_sp_port->local_port);
	return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(pspa), pspa_pl);
563 564
}

565
int mlxsw_sp_port_vp_mode_set(struct mlxsw_sp_port *mlxsw_sp_port, bool enable)
566 567 568 569 570 571 572 573
{
	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
	char svpe_pl[MLXSW_REG_SVPE_LEN];

	mlxsw_reg_svpe_pack(svpe_pl, mlxsw_sp_port->local_port, enable);
	return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(svpe), svpe_pl);
}

574 575
int mlxsw_sp_port_vid_learning_set(struct mlxsw_sp_port *mlxsw_sp_port, u16 vid,
				   bool learn_enable)
576 577 578 579 580 581 582 583
{
	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
	char *spvmlr_pl;
	int err;

	spvmlr_pl = kmalloc(MLXSW_REG_SPVMLR_LEN, GFP_KERNEL);
	if (!spvmlr_pl)
		return -ENOMEM;
584 585
	mlxsw_reg_spvmlr_pack(spvmlr_pl, mlxsw_sp_port->local_port, vid, vid,
			      learn_enable);
586 587 588 589 590
	err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(spvmlr), spvmlr_pl);
	kfree(spvmlr_pl);
	return err;
}

591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635
static int __mlxsw_sp_port_pvid_set(struct mlxsw_sp_port *mlxsw_sp_port,
				    u16 vid)
{
	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
	char spvid_pl[MLXSW_REG_SPVID_LEN];

	mlxsw_reg_spvid_pack(spvid_pl, mlxsw_sp_port->local_port, vid);
	return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(spvid), spvid_pl);
}

static int mlxsw_sp_port_allow_untagged_set(struct mlxsw_sp_port *mlxsw_sp_port,
					    bool allow)
{
	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
	char spaft_pl[MLXSW_REG_SPAFT_LEN];

	mlxsw_reg_spaft_pack(spaft_pl, mlxsw_sp_port->local_port, allow);
	return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(spaft), spaft_pl);
}

int mlxsw_sp_port_pvid_set(struct mlxsw_sp_port *mlxsw_sp_port, u16 vid)
{
	int err;

	if (!vid) {
		err = mlxsw_sp_port_allow_untagged_set(mlxsw_sp_port, false);
		if (err)
			return err;
	} else {
		err = __mlxsw_sp_port_pvid_set(mlxsw_sp_port, vid);
		if (err)
			return err;
		err = mlxsw_sp_port_allow_untagged_set(mlxsw_sp_port, true);
		if (err)
			goto err_port_allow_untagged_set;
	}

	mlxsw_sp_port->pvid = vid;
	return 0;

err_port_allow_untagged_set:
	__mlxsw_sp_port_pvid_set(mlxsw_sp_port, mlxsw_sp_port->pvid);
	return err;
}

636 637 638 639 640 641 642 643 644 645
static int
mlxsw_sp_port_system_port_mapping_set(struct mlxsw_sp_port *mlxsw_sp_port)
{
	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
	char sspr_pl[MLXSW_REG_SSPR_LEN];

	mlxsw_reg_sspr_pack(sspr_pl, mlxsw_sp_port->local_port);
	return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sspr), sspr_pl);
}

646 647 648
static int mlxsw_sp_port_module_info_get(struct mlxsw_sp *mlxsw_sp,
					 u8 local_port, u8 *p_module,
					 u8 *p_width, u8 *p_lane)
649 650 651 652
{
	char pmlp_pl[MLXSW_REG_PMLP_LEN];
	int err;

653
	mlxsw_reg_pmlp_pack(pmlp_pl, local_port);
654 655 656
	err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(pmlp), pmlp_pl);
	if (err)
		return err;
657 658
	*p_module = mlxsw_reg_pmlp_module_get(pmlp_pl, 0);
	*p_width = mlxsw_reg_pmlp_width_get(pmlp_pl);
659
	*p_lane = mlxsw_reg_pmlp_tx_lane_get(pmlp_pl, 0);
660 661 662
	return 0;
}

663
static int mlxsw_sp_port_module_map(struct mlxsw_sp_port *mlxsw_sp_port,
664 665
				    u8 module, u8 width, u8 lane)
{
666
	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
667 668 669
	char pmlp_pl[MLXSW_REG_PMLP_LEN];
	int i;

670
	mlxsw_reg_pmlp_pack(pmlp_pl, mlxsw_sp_port->local_port);
671 672 673 674 675 676 677 678 679
	mlxsw_reg_pmlp_width_set(pmlp_pl, width);
	for (i = 0; i < width; i++) {
		mlxsw_reg_pmlp_module_set(pmlp_pl, i, module);
		mlxsw_reg_pmlp_tx_lane_set(pmlp_pl, i, lane + i);  /* Rx & Tx */
	}

	return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(pmlp), pmlp_pl);
}

680
static int mlxsw_sp_port_module_unmap(struct mlxsw_sp_port *mlxsw_sp_port)
681
{
682
	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
683 684
	char pmlp_pl[MLXSW_REG_PMLP_LEN];

685
	mlxsw_reg_pmlp_pack(pmlp_pl, mlxsw_sp_port->local_port);
686 687 688 689
	mlxsw_reg_pmlp_width_set(pmlp_pl, 0);
	return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(pmlp), pmlp_pl);
}

690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722
static int mlxsw_sp_port_open(struct net_device *dev)
{
	struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
	int err;

	err = mlxsw_sp_port_admin_status_set(mlxsw_sp_port, true);
	if (err)
		return err;
	netif_start_queue(dev);
	return 0;
}

static int mlxsw_sp_port_stop(struct net_device *dev)
{
	struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);

	netif_stop_queue(dev);
	return mlxsw_sp_port_admin_status_set(mlxsw_sp_port, false);
}

static netdev_tx_t mlxsw_sp_port_xmit(struct sk_buff *skb,
				      struct net_device *dev)
{
	struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
	struct mlxsw_sp_port_pcpu_stats *pcpu_stats;
	const struct mlxsw_tx_info tx_info = {
		.local_port = mlxsw_sp_port->local_port,
		.is_emad = false,
	};
	u64 len;
	int err;

723
	if (mlxsw_core_skb_transmit_busy(mlxsw_sp->core, &tx_info))
724 725 726 727 728 729 730 731 732 733 734
		return NETDEV_TX_BUSY;

	if (unlikely(skb_headroom(skb) < MLXSW_TXHDR_LEN)) {
		struct sk_buff *skb_orig = skb;

		skb = skb_realloc_headroom(skb, MLXSW_TXHDR_LEN);
		if (!skb) {
			this_cpu_inc(mlxsw_sp_port->pcpu_stats->tx_dropped);
			dev_kfree_skb_any(skb_orig);
			return NETDEV_TX_OK;
		}
735
		dev_consume_skb_any(skb_orig);
736 737 738 739 740 741 742 743
	}

	if (eth_skb_pad(skb)) {
		this_cpu_inc(mlxsw_sp_port->pcpu_stats->tx_dropped);
		return NETDEV_TX_OK;
	}

	mlxsw_sp_txhdr_construct(skb, &tx_info);
744 745 746 747 748
	/* TX header is consumed by HW on the way so we shouldn't count its
	 * bytes as being sent.
	 */
	len = skb->len - MLXSW_TXHDR_LEN;

749 750 751
	/* Due to a race we might fail here because of a full queue. In that
	 * unlikely case we simply drop the packet.
	 */
752
	err = mlxsw_core_skb_transmit(mlxsw_sp->core, skb, &tx_info);
753 754 755 756 757 758 759 760 761 762 763 764 765 766

	if (!err) {
		pcpu_stats = this_cpu_ptr(mlxsw_sp_port->pcpu_stats);
		u64_stats_update_begin(&pcpu_stats->syncp);
		pcpu_stats->tx_packets++;
		pcpu_stats->tx_bytes += len;
		u64_stats_update_end(&pcpu_stats->syncp);
	} else {
		this_cpu_inc(mlxsw_sp_port->pcpu_stats->tx_dropped);
		dev_kfree_skb_any(skb);
	}
	return NETDEV_TX_OK;
}

767 768 769 770
static void mlxsw_sp_set_rx_mode(struct net_device *dev)
{
}

771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786
static int mlxsw_sp_port_set_mac_address(struct net_device *dev, void *p)
{
	struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
	struct sockaddr *addr = p;
	int err;

	if (!is_valid_ether_addr(addr->sa_data))
		return -EADDRNOTAVAIL;

	err = mlxsw_sp_port_dev_addr_set(mlxsw_sp_port, addr->sa_data);
	if (err)
		return err;
	memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
	return 0;
}

787 788
static u16 mlxsw_sp_pg_buf_threshold_get(const struct mlxsw_sp *mlxsw_sp,
					 int mtu)
789
{
790
	return 2 * mlxsw_sp_bytes_cells(mlxsw_sp, mtu);
791
}
792

793
#define MLXSW_SP_CELL_FACTOR 2	/* 2 * cell_size / (IPG + cell_size + 1) */
794 795 796

static u16 mlxsw_sp_pfc_delay_get(const struct mlxsw_sp *mlxsw_sp, int mtu,
				  u16 delay)
797
{
798 799 800 801
	delay = mlxsw_sp_bytes_cells(mlxsw_sp, DIV_ROUND_UP(delay,
							    BITS_PER_BYTE));
	return MLXSW_SP_CELL_FACTOR * delay + mlxsw_sp_bytes_cells(mlxsw_sp,
								   mtu);
802 803
}

804
/* Maximum delay buffer needed in case of PAUSE frames, in bytes.
805 806
 * Assumes 100m cable and maximum MTU.
 */
807 808 809 810
#define MLXSW_SP_PAUSE_DELAY 58752

static u16 mlxsw_sp_pg_buf_delay_get(const struct mlxsw_sp *mlxsw_sp, int mtu,
				     u16 delay, bool pfc, bool pause)
811 812
{
	if (pfc)
813
		return mlxsw_sp_pfc_delay_get(mlxsw_sp, mtu, delay);
814
	else if (pause)
815
		return mlxsw_sp_bytes_cells(mlxsw_sp, MLXSW_SP_PAUSE_DELAY);
816 817 818
	else
		return 0;
}
819

820 821 822 823 824
static void mlxsw_sp_pg_buf_pack(char *pbmc_pl, int index, u16 size, u16 thres,
				 bool lossy)
{
	if (lossy)
		mlxsw_reg_pbmc_lossy_buffer_pack(pbmc_pl, index, size);
825
	else
826 827
		mlxsw_reg_pbmc_lossless_buffer_pack(pbmc_pl, index, size,
						    thres);
828 829 830
}

int __mlxsw_sp_port_headroom_set(struct mlxsw_sp_port *mlxsw_sp_port, int mtu,
831 832
				 u8 *prio_tc, bool pause_en,
				 struct ieee_pfc *my_pfc)
833 834
{
	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
835 836
	u8 pfc_en = !!my_pfc ? my_pfc->pfc_en : 0;
	u16 delay = !!my_pfc ? my_pfc->delay : 0;
837
	char pbmc_pl[MLXSW_REG_PBMC_LEN];
838
	int i, j, err;
839 840 841 842 843

	mlxsw_reg_pbmc_pack(pbmc_pl, mlxsw_sp_port->local_port, 0, 0);
	err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(pbmc), pbmc_pl);
	if (err)
		return err;
844 845 846

	for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) {
		bool configure = false;
847
		bool pfc = false;
848 849
		bool lossy;
		u16 thres;
850 851 852

		for (j = 0; j < IEEE_8021QAZ_MAX_TCS; j++) {
			if (prio_tc[j] == i) {
853
				pfc = pfc_en & BIT(j);
854 855 856 857 858 859 860
				configure = true;
				break;
			}
		}

		if (!configure)
			continue;
861 862

		lossy = !(pfc || pause_en);
863 864 865
		thres = mlxsw_sp_pg_buf_threshold_get(mlxsw_sp, mtu);
		delay = mlxsw_sp_pg_buf_delay_get(mlxsw_sp, mtu, delay, pfc,
						  pause_en);
866
		mlxsw_sp_pg_buf_pack(pbmc_pl, i, thres + delay, thres, lossy);
867 868
	}

869 870 871
	return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(pbmc), pbmc_pl);
}

872
static int mlxsw_sp_port_headroom_set(struct mlxsw_sp_port *mlxsw_sp_port,
873
				      int mtu, bool pause_en)
874 875 876
{
	u8 def_prio_tc[IEEE_8021QAZ_MAX_TCS] = {0};
	bool dcb_en = !!mlxsw_sp_port->dcb.ets;
877
	struct ieee_pfc *my_pfc;
878 879 880
	u8 *prio_tc;

	prio_tc = dcb_en ? mlxsw_sp_port->dcb.ets->prio_tc : def_prio_tc;
881
	my_pfc = dcb_en ? mlxsw_sp_port->dcb.pfc : NULL;
882

883
	return __mlxsw_sp_port_headroom_set(mlxsw_sp_port, mtu, prio_tc,
884
					    pause_en, my_pfc);
885 886
}

887 888 889
static int mlxsw_sp_port_change_mtu(struct net_device *dev, int mtu)
{
	struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
890
	bool pause_en = mlxsw_sp_port_is_pause_en(mlxsw_sp_port);
891 892
	int err;

893
	err = mlxsw_sp_port_headroom_set(mlxsw_sp_port, mtu, pause_en);
894 895
	if (err)
		return err;
896 897 898
	err = mlxsw_sp_span_port_mtu_update(mlxsw_sp_port, mtu);
	if (err)
		goto err_span_port_mtu_update;
899 900 901
	err = mlxsw_sp_port_mtu_set(mlxsw_sp_port, mtu);
	if (err)
		goto err_port_mtu_set;
902 903
	dev->mtu = mtu;
	return 0;
904 905

err_port_mtu_set:
906 907
	mlxsw_sp_span_port_mtu_update(mlxsw_sp_port, dev->mtu);
err_span_port_mtu_update:
908
	mlxsw_sp_port_headroom_set(mlxsw_sp_port, dev->mtu, pause_en);
909
	return err;
910 911
}

912
static int
913 914
mlxsw_sp_port_get_sw_stats64(const struct net_device *dev,
			     struct rtnl_link_stats64 *stats)
915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940
{
	struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
	struct mlxsw_sp_port_pcpu_stats *p;
	u64 rx_packets, rx_bytes, tx_packets, tx_bytes;
	u32 tx_dropped = 0;
	unsigned int start;
	int i;

	for_each_possible_cpu(i) {
		p = per_cpu_ptr(mlxsw_sp_port->pcpu_stats, i);
		do {
			start = u64_stats_fetch_begin_irq(&p->syncp);
			rx_packets	= p->rx_packets;
			rx_bytes	= p->rx_bytes;
			tx_packets	= p->tx_packets;
			tx_bytes	= p->tx_bytes;
		} while (u64_stats_fetch_retry_irq(&p->syncp, start));

		stats->rx_packets	+= rx_packets;
		stats->rx_bytes		+= rx_bytes;
		stats->tx_packets	+= tx_packets;
		stats->tx_bytes		+= tx_bytes;
		/* tx_dropped is u32, updated without syncp protection. */
		tx_dropped	+= p->tx_dropped;
	}
	stats->tx_dropped	= tx_dropped;
941 942 943
	return 0;
}

944
static bool mlxsw_sp_port_has_offload_stats(const struct net_device *dev, int attr_id)
945 946 947 948 949 950 951 952 953
{
	switch (attr_id) {
	case IFLA_OFFLOAD_XSTATS_CPU_HIT:
		return true;
	}

	return false;
}

954 955
static int mlxsw_sp_port_get_offload_stats(int attr_id, const struct net_device *dev,
					   void *sp)
956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013
{
	switch (attr_id) {
	case IFLA_OFFLOAD_XSTATS_CPU_HIT:
		return mlxsw_sp_port_get_sw_stats64(dev, sp);
	}

	return -EINVAL;
}

static int mlxsw_sp_port_get_stats_raw(struct net_device *dev, int grp,
				       int prio, char *ppcnt_pl)
{
	struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;

	mlxsw_reg_ppcnt_pack(ppcnt_pl, mlxsw_sp_port->local_port, grp, prio);
	return mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(ppcnt), ppcnt_pl);
}

static int mlxsw_sp_port_get_hw_stats(struct net_device *dev,
				      struct rtnl_link_stats64 *stats)
{
	char ppcnt_pl[MLXSW_REG_PPCNT_LEN];
	int err;

	err = mlxsw_sp_port_get_stats_raw(dev, MLXSW_REG_PPCNT_IEEE_8023_CNT,
					  0, ppcnt_pl);
	if (err)
		goto out;

	stats->tx_packets =
		mlxsw_reg_ppcnt_a_frames_transmitted_ok_get(ppcnt_pl);
	stats->rx_packets =
		mlxsw_reg_ppcnt_a_frames_received_ok_get(ppcnt_pl);
	stats->tx_bytes =
		mlxsw_reg_ppcnt_a_octets_transmitted_ok_get(ppcnt_pl);
	stats->rx_bytes =
		mlxsw_reg_ppcnt_a_octets_received_ok_get(ppcnt_pl);
	stats->multicast =
		mlxsw_reg_ppcnt_a_multicast_frames_received_ok_get(ppcnt_pl);

	stats->rx_crc_errors =
		mlxsw_reg_ppcnt_a_frame_check_sequence_errors_get(ppcnt_pl);
	stats->rx_frame_errors =
		mlxsw_reg_ppcnt_a_alignment_errors_get(ppcnt_pl);

	stats->rx_length_errors = (
		mlxsw_reg_ppcnt_a_in_range_length_errors_get(ppcnt_pl) +
		mlxsw_reg_ppcnt_a_out_of_range_length_field_get(ppcnt_pl) +
		mlxsw_reg_ppcnt_a_frame_too_long_errors_get(ppcnt_pl));

	stats->rx_errors = (stats->rx_crc_errors +
		stats->rx_frame_errors + stats->rx_length_errors);

out:
	return err;
}

1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1042 1043
static void
mlxsw_sp_port_get_hw_xstats(struct net_device *dev,
			    struct mlxsw_sp_port_xstats *xstats)
{
	char ppcnt_pl[MLXSW_REG_PPCNT_LEN];
	int err, i;

	err = mlxsw_sp_port_get_stats_raw(dev, MLXSW_REG_PPCNT_EXT_CNT, 0,
					  ppcnt_pl);
	if (!err)
		xstats->ecn = mlxsw_reg_ppcnt_ecn_marked_get(ppcnt_pl);

	for (i = 0; i < TC_MAX_QUEUE; i++) {
		err = mlxsw_sp_port_get_stats_raw(dev,
						  MLXSW_REG_PPCNT_TC_CONG_TC,
						  i, ppcnt_pl);
		if (!err)
			xstats->wred_drop[i] =
				mlxsw_reg_ppcnt_wred_discard_get(ppcnt_pl);

		err = mlxsw_sp_port_get_stats_raw(dev, MLXSW_REG_PPCNT_TC_CNT,
						  i, ppcnt_pl);
		if (err)
			continue;

		xstats->backlog[i] =
			mlxsw_reg_ppcnt_tc_transmit_queue_get(ppcnt_pl);
		xstats->tail_drop[i] =
			mlxsw_reg_ppcnt_tc_no_buffer_discard_uc_get(ppcnt_pl);
	}
1044 1045 1046 1047 1048 1049 1050 1051 1052 1053

	for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) {
		err = mlxsw_sp_port_get_stats_raw(dev, MLXSW_REG_PPCNT_PRIO_CNT,
						  i, ppcnt_pl);
		if (err)
			continue;

		xstats->tx_packets[i] = mlxsw_reg_ppcnt_tx_frames_get(ppcnt_pl);
		xstats->tx_bytes[i] = mlxsw_reg_ppcnt_tx_octets_get(ppcnt_pl);
	}
1054 1055
}

1056 1057 1058 1059
static void update_stats_cache(struct work_struct *work)
{
	struct mlxsw_sp_port *mlxsw_sp_port =
		container_of(work, struct mlxsw_sp_port,
1060
			     periodic_hw_stats.update_dw.work);
1061 1062 1063 1064 1065

	if (!netif_carrier_ok(mlxsw_sp_port->dev))
		goto out;

	mlxsw_sp_port_get_hw_stats(mlxsw_sp_port->dev,
1066
				   &mlxsw_sp_port->periodic_hw_stats.stats);
1067 1068
	mlxsw_sp_port_get_hw_xstats(mlxsw_sp_port->dev,
				    &mlxsw_sp_port->periodic_hw_stats.xstats);
1069 1070

out:
1071
	mlxsw_core_schedule_dw(&mlxsw_sp_port->periodic_hw_stats.update_dw,
1072 1073 1074 1075 1076 1077
			       MLXSW_HW_STATS_UPDATE_TIME);
}

/* Return the stats from a cache that is updated periodically,
 * as this function might get called in an atomic context.
 */
1078
static void
1079 1080 1081 1082 1083
mlxsw_sp_port_get_stats64(struct net_device *dev,
			  struct rtnl_link_stats64 *stats)
{
	struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);

1084
	memcpy(stats, &mlxsw_sp_port->periodic_hw_stats.stats, sizeof(*stats));
1085 1086
}

1087 1088 1089
static int __mlxsw_sp_port_vlan_set(struct mlxsw_sp_port *mlxsw_sp_port,
				    u16 vid_begin, u16 vid_end,
				    bool is_member, bool untagged)
1090 1091 1092 1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105
{
	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
	char *spvm_pl;
	int err;

	spvm_pl = kmalloc(MLXSW_REG_SPVM_LEN, GFP_KERNEL);
	if (!spvm_pl)
		return -ENOMEM;

	mlxsw_reg_spvm_pack(spvm_pl, mlxsw_sp_port->local_port,	vid_begin,
			    vid_end, is_member, untagged);
	err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(spvm), spvm_pl);
	kfree(spvm_pl);
	return err;
}

1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118 1119 1120 1121 1122 1123 1124 1125
int mlxsw_sp_port_vlan_set(struct mlxsw_sp_port *mlxsw_sp_port, u16 vid_begin,
			   u16 vid_end, bool is_member, bool untagged)
{
	u16 vid, vid_e;
	int err;

	for (vid = vid_begin; vid <= vid_end;
	     vid += MLXSW_REG_SPVM_REC_MAX_COUNT) {
		vid_e = min((u16) (vid + MLXSW_REG_SPVM_REC_MAX_COUNT - 1),
			    vid_end);

		err = __mlxsw_sp_port_vlan_set(mlxsw_sp_port, vid, vid_e,
					       is_member, untagged);
		if (err)
			return err;
	}

	return 0;
}

1126
static void mlxsw_sp_port_vlan_flush(struct mlxsw_sp_port *mlxsw_sp_port)
1127
{
1128
	struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan, *tmp;
1129

1130 1131 1132
	list_for_each_entry_safe(mlxsw_sp_port_vlan, tmp,
				 &mlxsw_sp_port->vlans_list, list)
		mlxsw_sp_port_vlan_put(mlxsw_sp_port_vlan);
1133 1134
}

1135 1136 1137 1138
static struct mlxsw_sp_port_vlan *
mlxsw_sp_port_vlan_create(struct mlxsw_sp_port *mlxsw_sp_port, u16 vid)
{
	struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan;
1139 1140 1141 1142 1143 1144
	bool untagged = vid == 1;
	int err;

	err = mlxsw_sp_port_vlan_set(mlxsw_sp_port, vid, vid, true, untagged);
	if (err)
		return ERR_PTR(err);
1145 1146

	mlxsw_sp_port_vlan = kzalloc(sizeof(*mlxsw_sp_port_vlan), GFP_KERNEL);
1147 1148 1149 1150
	if (!mlxsw_sp_port_vlan) {
		err = -ENOMEM;
		goto err_port_vlan_alloc;
	}
1151 1152

	mlxsw_sp_port_vlan->mlxsw_sp_port = mlxsw_sp_port;
1153
	mlxsw_sp_port_vlan->ref_count = 1;
1154 1155 1156 1157
	mlxsw_sp_port_vlan->vid = vid;
	list_add(&mlxsw_sp_port_vlan->list, &mlxsw_sp_port->vlans_list);

	return mlxsw_sp_port_vlan;
1158 1159 1160 1161

err_port_vlan_alloc:
	mlxsw_sp_port_vlan_set(mlxsw_sp_port, vid, vid, false, false);
	return ERR_PTR(err);
1162 1163 1164 1165 1166
}

static void
mlxsw_sp_port_vlan_destroy(struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan)
{
1167 1168
	struct mlxsw_sp_port *mlxsw_sp_port = mlxsw_sp_port_vlan->mlxsw_sp_port;
	u16 vid = mlxsw_sp_port_vlan->vid;
1169

1170 1171
	list_del(&mlxsw_sp_port_vlan->list);
	kfree(mlxsw_sp_port_vlan);
1172 1173 1174 1175 1176 1177 1178 1179 1180
	mlxsw_sp_port_vlan_set(mlxsw_sp_port, vid, vid, false, false);
}

struct mlxsw_sp_port_vlan *
mlxsw_sp_port_vlan_get(struct mlxsw_sp_port *mlxsw_sp_port, u16 vid)
{
	struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan;

	mlxsw_sp_port_vlan = mlxsw_sp_port_vlan_find_by_vid(mlxsw_sp_port, vid);
1181 1182
	if (mlxsw_sp_port_vlan) {
		mlxsw_sp_port_vlan->ref_count++;
1183
		return mlxsw_sp_port_vlan;
1184
	}
1185 1186 1187 1188 1189 1190

	return mlxsw_sp_port_vlan_create(mlxsw_sp_port, vid);
}

void mlxsw_sp_port_vlan_put(struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan)
{
1191 1192
	struct mlxsw_sp_fid *fid = mlxsw_sp_port_vlan->fid;

1193 1194 1195
	if (--mlxsw_sp_port_vlan->ref_count != 0)
		return;

1196 1197
	if (mlxsw_sp_port_vlan->bridge_port)
		mlxsw_sp_port_vlan_bridge_leave(mlxsw_sp_port_vlan);
1198 1199
	else if (fid)
		mlxsw_sp_port_vlan_router_leave(mlxsw_sp_port_vlan);
1200 1201

	mlxsw_sp_port_vlan_destroy(mlxsw_sp_port_vlan);
1202 1203
}

1204 1205
static int mlxsw_sp_port_add_vid(struct net_device *dev,
				 __be16 __always_unused proto, u16 vid)
1206 1207 1208 1209 1210 1211 1212 1213 1214
{
	struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);

	/* VLAN 0 is added to HW filter when device goes up, but it is
	 * reserved in our case, so simply return.
	 */
	if (!vid)
		return 0;

1215
	return PTR_ERR_OR_ZERO(mlxsw_sp_port_vlan_get(mlxsw_sp_port, vid));
1216 1217
}

1218 1219
static int mlxsw_sp_port_kill_vid(struct net_device *dev,
				  __be16 __always_unused proto, u16 vid)
1220 1221
{
	struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
1222
	struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan;
1223 1224 1225 1226 1227 1228 1229

	/* VLAN 0 is removed from HW filter when device goes down, but
	 * it is reserved in our case, so simply return.
	 */
	if (!vid)
		return 0;

1230
	mlxsw_sp_port_vlan = mlxsw_sp_port_vlan_find_by_vid(mlxsw_sp_port, vid);
1231
	if (!mlxsw_sp_port_vlan)
1232
		return 0;
1233
	mlxsw_sp_port_vlan_put(mlxsw_sp_port_vlan);
1234

1235 1236 1237
	return 0;
}

1238 1239 1240 1241 1242
static int mlxsw_sp_port_get_phys_port_name(struct net_device *dev, char *name,
					    size_t len)
{
	struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);

1243 1244 1245
	return mlxsw_core_port_get_phys_port_name(mlxsw_sp_port->mlxsw_sp->core,
						  mlxsw_sp_port->local_port,
						  name, len);
1246 1247
}

1248
static struct mlxsw_sp_port_mall_tc_entry *
1249 1250
mlxsw_sp_port_mall_tc_entry_find(struct mlxsw_sp_port *port,
				 unsigned long cookie) {
1251 1252 1253 1254 1255 1256 1257 1258 1259 1260 1261
	struct mlxsw_sp_port_mall_tc_entry *mall_tc_entry;

	list_for_each_entry(mall_tc_entry, &port->mall_tc_list, list)
		if (mall_tc_entry->cookie == cookie)
			return mall_tc_entry;

	return NULL;
}

static int
mlxsw_sp_port_add_cls_matchall_mirror(struct mlxsw_sp_port *mlxsw_sp_port,
1262
				      struct mlxsw_sp_port_mall_mirror_tc_entry *mirror,
1263 1264 1265 1266 1267 1268
				      const struct tc_action *a,
				      bool ingress)
{
	enum mlxsw_sp_span_type span_type;
	struct net_device *to_dev;

1269
	to_dev = tcf_mirred_dev(a);
1270 1271 1272 1273 1274
	if (!to_dev) {
		netdev_err(mlxsw_sp_port->dev, "Could not find requested device\n");
		return -EINVAL;
	}

1275
	mirror->ingress = ingress;
1276
	span_type = ingress ? MLXSW_SP_SPAN_INGRESS : MLXSW_SP_SPAN_EGRESS;
1277
	return mlxsw_sp_span_mirror_add(mlxsw_sp_port, to_dev, span_type,
1278
					true, &mirror->span_id);
1279
}
1280

1281 1282 1283 1284 1285 1286 1287 1288
static void
mlxsw_sp_port_del_cls_matchall_mirror(struct mlxsw_sp_port *mlxsw_sp_port,
				      struct mlxsw_sp_port_mall_mirror_tc_entry *mirror)
{
	enum mlxsw_sp_span_type span_type;

	span_type = mirror->ingress ?
			MLXSW_SP_SPAN_INGRESS : MLXSW_SP_SPAN_EGRESS;
1289
	mlxsw_sp_span_mirror_del(mlxsw_sp_port, mirror->span_id,
1290
				 span_type, true);
1291 1292
}

1293 1294 1295 1296 1297 1298 1299 1300 1301 1302 1303 1304 1305 1306 1307 1308 1309 1310 1311 1312 1313 1314 1315 1316 1317 1318 1319 1320 1321 1322 1323 1324 1325 1326 1327 1328 1329 1330 1331 1332 1333 1334 1335 1336 1337
static int
mlxsw_sp_port_add_cls_matchall_sample(struct mlxsw_sp_port *mlxsw_sp_port,
				      struct tc_cls_matchall_offload *cls,
				      const struct tc_action *a,
				      bool ingress)
{
	int err;

	if (!mlxsw_sp_port->sample)
		return -EOPNOTSUPP;
	if (rtnl_dereference(mlxsw_sp_port->sample->psample_group)) {
		netdev_err(mlxsw_sp_port->dev, "sample already active\n");
		return -EEXIST;
	}
	if (tcf_sample_rate(a) > MLXSW_REG_MPSC_RATE_MAX) {
		netdev_err(mlxsw_sp_port->dev, "sample rate not supported\n");
		return -EOPNOTSUPP;
	}

	rcu_assign_pointer(mlxsw_sp_port->sample->psample_group,
			   tcf_sample_psample_group(a));
	mlxsw_sp_port->sample->truncate = tcf_sample_truncate(a);
	mlxsw_sp_port->sample->trunc_size = tcf_sample_trunc_size(a);
	mlxsw_sp_port->sample->rate = tcf_sample_rate(a);

	err = mlxsw_sp_port_sample_set(mlxsw_sp_port, true, tcf_sample_rate(a));
	if (err)
		goto err_port_sample_set;
	return 0;

err_port_sample_set:
	RCU_INIT_POINTER(mlxsw_sp_port->sample->psample_group, NULL);
	return err;
}

static void
mlxsw_sp_port_del_cls_matchall_sample(struct mlxsw_sp_port *mlxsw_sp_port)
{
	if (!mlxsw_sp_port->sample)
		return;

	mlxsw_sp_port_sample_set(mlxsw_sp_port, false, 1);
	RCU_INIT_POINTER(mlxsw_sp_port->sample->psample_group, NULL);
}

1338
static int mlxsw_sp_port_add_cls_matchall(struct mlxsw_sp_port *mlxsw_sp_port,
1339
					  struct tc_cls_matchall_offload *f,
1340 1341
					  bool ingress)
{
1342
	struct mlxsw_sp_port_mall_tc_entry *mall_tc_entry;
1343
	__be16 protocol = f->common.protocol;
1344
	const struct tc_action *a;
1345
	LIST_HEAD(actions);
1346 1347
	int err;

1348
	if (!tcf_exts_has_one_action(f->exts)) {
1349
		netdev_err(mlxsw_sp_port->dev, "only singular actions are supported\n");
1350
		return -EOPNOTSUPP;
1351 1352
	}

1353 1354 1355
	mall_tc_entry = kzalloc(sizeof(*mall_tc_entry), GFP_KERNEL);
	if (!mall_tc_entry)
		return -ENOMEM;
1356
	mall_tc_entry->cookie = f->cookie;
1357

1358
	a = tcf_exts_first_action(f->exts);
1359

1360 1361 1362 1363 1364 1365 1366
	if (is_tcf_mirred_egress_mirror(a) && protocol == htons(ETH_P_ALL)) {
		struct mlxsw_sp_port_mall_mirror_tc_entry *mirror;

		mall_tc_entry->type = MLXSW_SP_PORT_MALL_MIRROR;
		mirror = &mall_tc_entry->mirror;
		err = mlxsw_sp_port_add_cls_matchall_mirror(mlxsw_sp_port,
							    mirror, a, ingress);
1367 1368
	} else if (is_tcf_sample(a) && protocol == htons(ETH_P_ALL)) {
		mall_tc_entry->type = MLXSW_SP_PORT_MALL_SAMPLE;
1369
		err = mlxsw_sp_port_add_cls_matchall_sample(mlxsw_sp_port, f,
1370
							    a, ingress);
1371 1372
	} else {
		err = -EOPNOTSUPP;
1373 1374
	}

1375 1376 1377 1378
	if (err)
		goto err_add_action;

	list_add_tail(&mall_tc_entry->list, &mlxsw_sp_port->mall_tc_list);
1379
	return 0;
1380 1381 1382 1383

err_add_action:
	kfree(mall_tc_entry);
	return err;
1384 1385 1386
}

static void mlxsw_sp_port_del_cls_matchall(struct mlxsw_sp_port *mlxsw_sp_port,
1387
					   struct tc_cls_matchall_offload *f)
1388 1389 1390
{
	struct mlxsw_sp_port_mall_tc_entry *mall_tc_entry;

1391
	mall_tc_entry = mlxsw_sp_port_mall_tc_entry_find(mlxsw_sp_port,
1392
							 f->cookie);
1393 1394 1395 1396
	if (!mall_tc_entry) {
		netdev_dbg(mlxsw_sp_port->dev, "tc entry not found on port\n");
		return;
	}
1397
	list_del(&mall_tc_entry->list);
1398 1399 1400

	switch (mall_tc_entry->type) {
	case MLXSW_SP_PORT_MALL_MIRROR:
1401 1402
		mlxsw_sp_port_del_cls_matchall_mirror(mlxsw_sp_port,
						      &mall_tc_entry->mirror);
1403
		break;
1404 1405 1406
	case MLXSW_SP_PORT_MALL_SAMPLE:
		mlxsw_sp_port_del_cls_matchall_sample(mlxsw_sp_port);
		break;
1407 1408 1409 1410 1411 1412 1413
	default:
		WARN_ON(1);
	}

	kfree(mall_tc_entry);
}

1414
static int mlxsw_sp_setup_tc_cls_matchall(struct mlxsw_sp_port *mlxsw_sp_port,
1415 1416
					  struct tc_cls_matchall_offload *f,
					  bool ingress)
1417 1418 1419
{
	switch (f->command) {
	case TC_CLSMATCHALL_REPLACE:
1420
		return mlxsw_sp_port_add_cls_matchall(mlxsw_sp_port, f,
1421 1422 1423 1424 1425 1426 1427 1428 1429 1430
						      ingress);
	case TC_CLSMATCHALL_DESTROY:
		mlxsw_sp_port_del_cls_matchall(mlxsw_sp_port, f);
		return 0;
	default:
		return -EOPNOTSUPP;
	}
}

static int
1431 1432
mlxsw_sp_setup_tc_cls_flower(struct mlxsw_sp_acl_block *acl_block,
			     struct tc_cls_flower_offload *f)
1433
{
1434 1435
	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_acl_block_mlxsw_sp(acl_block);

1436 1437
	switch (f->command) {
	case TC_CLSFLOWER_REPLACE:
1438
		return mlxsw_sp_flower_replace(mlxsw_sp, acl_block, f);
1439
	case TC_CLSFLOWER_DESTROY:
1440
		mlxsw_sp_flower_destroy(mlxsw_sp, acl_block, f);
1441 1442
		return 0;
	case TC_CLSFLOWER_STATS:
1443
		return mlxsw_sp_flower_stats(mlxsw_sp, acl_block, f);
1444 1445 1446 1447 1448
	case TC_CLSFLOWER_TMPLT_CREATE:
		return mlxsw_sp_flower_tmplt_create(mlxsw_sp, acl_block, f);
	case TC_CLSFLOWER_TMPLT_DESTROY:
		mlxsw_sp_flower_tmplt_destroy(mlxsw_sp, acl_block, f);
		return 0;
1449 1450 1451 1452 1453
	default:
		return -EOPNOTSUPP;
	}
}

1454 1455 1456
static int mlxsw_sp_setup_tc_block_cb_matchall(enum tc_setup_type type,
					       void *type_data,
					       void *cb_priv, bool ingress)
1457 1458 1459 1460 1461
{
	struct mlxsw_sp_port *mlxsw_sp_port = cb_priv;

	switch (type) {
	case TC_SETUP_CLSMATCHALL:
1462 1463
		if (!tc_cls_can_offload_and_chain0(mlxsw_sp_port->dev,
						   type_data))
1464 1465
			return -EOPNOTSUPP;

1466 1467 1468
		return mlxsw_sp_setup_tc_cls_matchall(mlxsw_sp_port, type_data,
						      ingress);
	case TC_SETUP_CLSFLOWER:
1469
		return 0;
1470 1471 1472 1473 1474
	default:
		return -EOPNOTSUPP;
	}
}

1475 1476 1477 1478 1479 1480 1481 1482 1483 1484 1485
static int mlxsw_sp_setup_tc_block_cb_matchall_ig(enum tc_setup_type type,
						  void *type_data,
						  void *cb_priv)
{
	return mlxsw_sp_setup_tc_block_cb_matchall(type, type_data,
						   cb_priv, true);
}

static int mlxsw_sp_setup_tc_block_cb_matchall_eg(enum tc_setup_type type,
						  void *type_data,
						  void *cb_priv)
1486
{
1487 1488
	return mlxsw_sp_setup_tc_block_cb_matchall(type, type_data,
						   cb_priv, false);
1489 1490
}

1491 1492
static int mlxsw_sp_setup_tc_block_cb_flower(enum tc_setup_type type,
					     void *type_data, void *cb_priv)
1493
{
1494 1495 1496 1497 1498 1499 1500 1501 1502 1503 1504 1505 1506 1507 1508 1509 1510
	struct mlxsw_sp_acl_block *acl_block = cb_priv;

	switch (type) {
	case TC_SETUP_CLSMATCHALL:
		return 0;
	case TC_SETUP_CLSFLOWER:
		if (mlxsw_sp_acl_block_disabled(acl_block))
			return -EOPNOTSUPP;

		return mlxsw_sp_setup_tc_cls_flower(acl_block, type_data);
	default:
		return -EOPNOTSUPP;
	}
}

static int
mlxsw_sp_setup_tc_block_flower_bind(struct mlxsw_sp_port *mlxsw_sp_port,
1511 1512
				    struct tcf_block *block, bool ingress,
				    struct netlink_ext_ack *extack)
1513 1514 1515 1516 1517 1518 1519 1520 1521 1522 1523 1524 1525 1526
{
	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
	struct mlxsw_sp_acl_block *acl_block;
	struct tcf_block_cb *block_cb;
	int err;

	block_cb = tcf_block_cb_lookup(block, mlxsw_sp_setup_tc_block_cb_flower,
				       mlxsw_sp);
	if (!block_cb) {
		acl_block = mlxsw_sp_acl_block_create(mlxsw_sp, block->net);
		if (!acl_block)
			return -ENOMEM;
		block_cb = __tcf_block_cb_register(block,
						   mlxsw_sp_setup_tc_block_cb_flower,
1527
						   mlxsw_sp, acl_block, extack);
1528 1529 1530 1531 1532 1533 1534 1535 1536 1537 1538 1539 1540 1541 1542 1543 1544 1545 1546 1547 1548 1549
		if (IS_ERR(block_cb)) {
			err = PTR_ERR(block_cb);
			goto err_cb_register;
		}
	} else {
		acl_block = tcf_block_cb_priv(block_cb);
	}
	tcf_block_cb_incref(block_cb);
	err = mlxsw_sp_acl_block_bind(mlxsw_sp, acl_block,
				      mlxsw_sp_port, ingress);
	if (err)
		goto err_block_bind;

	if (ingress)
		mlxsw_sp_port->ing_acl_block = acl_block;
	else
		mlxsw_sp_port->eg_acl_block = acl_block;

	return 0;

err_block_bind:
	if (!tcf_block_cb_decref(block_cb)) {
1550
		__tcf_block_cb_unregister(block, block_cb);
1551 1552 1553 1554 1555 1556 1557 1558 1559 1560 1561 1562 1563 1564 1565 1566 1567 1568 1569 1570 1571 1572 1573 1574 1575 1576 1577 1578 1579
err_cb_register:
		mlxsw_sp_acl_block_destroy(acl_block);
	}
	return err;
}

static void
mlxsw_sp_setup_tc_block_flower_unbind(struct mlxsw_sp_port *mlxsw_sp_port,
				      struct tcf_block *block, bool ingress)
{
	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
	struct mlxsw_sp_acl_block *acl_block;
	struct tcf_block_cb *block_cb;
	int err;

	block_cb = tcf_block_cb_lookup(block, mlxsw_sp_setup_tc_block_cb_flower,
				       mlxsw_sp);
	if (!block_cb)
		return;

	if (ingress)
		mlxsw_sp_port->ing_acl_block = NULL;
	else
		mlxsw_sp_port->eg_acl_block = NULL;

	acl_block = tcf_block_cb_priv(block_cb);
	err = mlxsw_sp_acl_block_unbind(mlxsw_sp, acl_block,
					mlxsw_sp_port, ingress);
	if (!err && !tcf_block_cb_decref(block_cb)) {
1580
		__tcf_block_cb_unregister(block, block_cb);
1581 1582
		mlxsw_sp_acl_block_destroy(acl_block);
	}
1583 1584 1585 1586 1587 1588
}

static int mlxsw_sp_setup_tc_block(struct mlxsw_sp_port *mlxsw_sp_port,
				   struct tc_block_offload *f)
{
	tc_setup_cb_t *cb;
1589 1590
	bool ingress;
	int err;
1591

1592 1593 1594 1595 1596 1597 1598
	if (f->binder_type == TCF_BLOCK_BINDER_TYPE_CLSACT_INGRESS) {
		cb = mlxsw_sp_setup_tc_block_cb_matchall_ig;
		ingress = true;
	} else if (f->binder_type == TCF_BLOCK_BINDER_TYPE_CLSACT_EGRESS) {
		cb = mlxsw_sp_setup_tc_block_cb_matchall_eg;
		ingress = false;
	} else {
1599
		return -EOPNOTSUPP;
1600
	}
1601 1602 1603

	switch (f->command) {
	case TC_BLOCK_BIND:
1604
		err = tcf_block_cb_register(f->block, cb, mlxsw_sp_port,
1605
					    mlxsw_sp_port, f->extack);
1606 1607 1608
		if (err)
			return err;
		err = mlxsw_sp_setup_tc_block_flower_bind(mlxsw_sp_port,
1609 1610
							  f->block, ingress,
							  f->extack);
1611 1612 1613 1614 1615
		if (err) {
			tcf_block_cb_unregister(f->block, cb, mlxsw_sp_port);
			return err;
		}
		return 0;
1616
	case TC_BLOCK_UNBIND:
1617 1618
		mlxsw_sp_setup_tc_block_flower_unbind(mlxsw_sp_port,
						      f->block, ingress);
1619 1620 1621 1622 1623 1624 1625
		tcf_block_cb_unregister(f->block, cb, mlxsw_sp_port);
		return 0;
	default:
		return -EOPNOTSUPP;
	}
}

1626
static int mlxsw_sp_setup_tc(struct net_device *dev, enum tc_setup_type type,
1627
			     void *type_data)
1628 1629 1630
{
	struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);

1631
	switch (type) {
1632 1633
	case TC_SETUP_BLOCK:
		return mlxsw_sp_setup_tc_block(mlxsw_sp_port, type_data);
1634 1635
	case TC_SETUP_QDISC_RED:
		return mlxsw_sp_setup_tc_red(mlxsw_sp_port, type_data);
1636 1637
	case TC_SETUP_QDISC_PRIO:
		return mlxsw_sp_setup_tc_prio(mlxsw_sp_port, type_data);
1638 1639
	default:
		return -EOPNOTSUPP;
1640 1641 1642
	}
}

1643 1644 1645 1646 1647

static int mlxsw_sp_feature_hw_tc(struct net_device *dev, bool enable)
{
	struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);

1648 1649 1650 1651 1652 1653 1654 1655 1656 1657 1658 1659
	if (!enable) {
		if (mlxsw_sp_acl_block_rule_count(mlxsw_sp_port->ing_acl_block) ||
		    mlxsw_sp_acl_block_rule_count(mlxsw_sp_port->eg_acl_block) ||
		    !list_empty(&mlxsw_sp_port->mall_tc_list)) {
			netdev_err(dev, "Active offloaded tc filters, can't turn hw_tc_offload off\n");
			return -EINVAL;
		}
		mlxsw_sp_acl_block_disable_inc(mlxsw_sp_port->ing_acl_block);
		mlxsw_sp_acl_block_disable_inc(mlxsw_sp_port->eg_acl_block);
	} else {
		mlxsw_sp_acl_block_disable_dec(mlxsw_sp_port->ing_acl_block);
		mlxsw_sp_acl_block_disable_dec(mlxsw_sp_port->eg_acl_block);
1660 1661 1662 1663 1664 1665 1666 1667 1668 1669 1670 1671 1672 1673 1674 1675 1676 1677 1678 1679 1680 1681 1682 1683 1684 1685 1686 1687 1688 1689 1690 1691 1692 1693 1694 1695 1696 1697 1698
	}
	return 0;
}

typedef int (*mlxsw_sp_feature_handler)(struct net_device *dev, bool enable);

static int mlxsw_sp_handle_feature(struct net_device *dev,
				   netdev_features_t wanted_features,
				   netdev_features_t feature,
				   mlxsw_sp_feature_handler feature_handler)
{
	netdev_features_t changes = wanted_features ^ dev->features;
	bool enable = !!(wanted_features & feature);
	int err;

	if (!(changes & feature))
		return 0;

	err = feature_handler(dev, enable);
	if (err) {
		netdev_err(dev, "%s feature %pNF failed, err %d\n",
			   enable ? "Enable" : "Disable", &feature, err);
		return err;
	}

	if (enable)
		dev->features |= feature;
	else
		dev->features &= ~feature;

	return 0;
}
static int mlxsw_sp_set_features(struct net_device *dev,
				 netdev_features_t features)
{
	return mlxsw_sp_handle_feature(dev, features, NETIF_F_HW_TC,
				       mlxsw_sp_feature_hw_tc);
}

1699 1700 1701 1702
static const struct net_device_ops mlxsw_sp_port_netdev_ops = {
	.ndo_open		= mlxsw_sp_port_open,
	.ndo_stop		= mlxsw_sp_port_stop,
	.ndo_start_xmit		= mlxsw_sp_port_xmit,
1703
	.ndo_setup_tc           = mlxsw_sp_setup_tc,
1704
	.ndo_set_rx_mode	= mlxsw_sp_set_rx_mode,
1705 1706 1707
	.ndo_set_mac_address	= mlxsw_sp_port_set_mac_address,
	.ndo_change_mtu		= mlxsw_sp_port_change_mtu,
	.ndo_get_stats64	= mlxsw_sp_port_get_stats64,
1708 1709
	.ndo_has_offload_stats	= mlxsw_sp_port_has_offload_stats,
	.ndo_get_offload_stats	= mlxsw_sp_port_get_offload_stats,
1710 1711
	.ndo_vlan_rx_add_vid	= mlxsw_sp_port_add_vid,
	.ndo_vlan_rx_kill_vid	= mlxsw_sp_port_kill_vid,
1712
	.ndo_get_phys_port_name	= mlxsw_sp_port_get_phys_port_name,
1713
	.ndo_set_features	= mlxsw_sp_set_features,
1714 1715 1716 1717 1718 1719 1720 1721
};

static void mlxsw_sp_port_get_drvinfo(struct net_device *dev,
				      struct ethtool_drvinfo *drvinfo)
{
	struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;

1722 1723
	strlcpy(drvinfo->driver, mlxsw_sp->bus_info->device_kind,
		sizeof(drvinfo->driver));
1724 1725 1726 1727 1728 1729 1730 1731 1732 1733 1734
	strlcpy(drvinfo->version, mlxsw_sp_driver_version,
		sizeof(drvinfo->version));
	snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version),
		 "%d.%d.%d",
		 mlxsw_sp->bus_info->fw_rev.major,
		 mlxsw_sp->bus_info->fw_rev.minor,
		 mlxsw_sp->bus_info->fw_rev.subminor);
	strlcpy(drvinfo->bus_info, mlxsw_sp->bus_info->device_name,
		sizeof(drvinfo->bus_info));
}

1735 1736 1737 1738 1739 1740 1741 1742 1743 1744 1745 1746 1747 1748 1749 1750 1751 1752 1753 1754 1755 1756 1757 1758 1759 1760 1761 1762 1763
static void mlxsw_sp_port_get_pauseparam(struct net_device *dev,
					 struct ethtool_pauseparam *pause)
{
	struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);

	pause->rx_pause = mlxsw_sp_port->link.rx_pause;
	pause->tx_pause = mlxsw_sp_port->link.tx_pause;
}

static int mlxsw_sp_port_pause_set(struct mlxsw_sp_port *mlxsw_sp_port,
				   struct ethtool_pauseparam *pause)
{
	char pfcc_pl[MLXSW_REG_PFCC_LEN];

	mlxsw_reg_pfcc_pack(pfcc_pl, mlxsw_sp_port->local_port);
	mlxsw_reg_pfcc_pprx_set(pfcc_pl, pause->rx_pause);
	mlxsw_reg_pfcc_pptx_set(pfcc_pl, pause->tx_pause);

	return mlxsw_reg_write(mlxsw_sp_port->mlxsw_sp->core, MLXSW_REG(pfcc),
			       pfcc_pl);
}

static int mlxsw_sp_port_set_pauseparam(struct net_device *dev,
					struct ethtool_pauseparam *pause)
{
	struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
	bool pause_en = pause->tx_pause || pause->rx_pause;
	int err;

1764 1765 1766 1767 1768
	if (mlxsw_sp_port->dcb.pfc && mlxsw_sp_port->dcb.pfc->pfc_en) {
		netdev_err(dev, "PFC already enabled on port\n");
		return -EINVAL;
	}

1769 1770 1771 1772 1773 1774 1775 1776 1777 1778 1779 1780 1781 1782 1783 1784 1785 1786 1787 1788 1789 1790 1791 1792 1793 1794 1795 1796
	if (pause->autoneg) {
		netdev_err(dev, "PAUSE frames autonegotiation isn't supported\n");
		return -EINVAL;
	}

	err = mlxsw_sp_port_headroom_set(mlxsw_sp_port, dev->mtu, pause_en);
	if (err) {
		netdev_err(dev, "Failed to configure port's headroom\n");
		return err;
	}

	err = mlxsw_sp_port_pause_set(mlxsw_sp_port, pause);
	if (err) {
		netdev_err(dev, "Failed to set PAUSE parameters\n");
		goto err_port_pause_configure;
	}

	mlxsw_sp_port->link.rx_pause = pause->rx_pause;
	mlxsw_sp_port->link.tx_pause = pause->tx_pause;

	return 0;

err_port_pause_configure:
	pause_en = mlxsw_sp_port_is_pause_en(mlxsw_sp_port);
	mlxsw_sp_port_headroom_set(mlxsw_sp_port, dev->mtu, pause_en);
	return err;
}

1797 1798
struct mlxsw_sp_port_hw_stats {
	char str[ETH_GSTRING_LEN];
1799
	u64 (*getter)(const char *payload);
1800
	bool cells_bytes;
1801 1802
};

1803
static struct mlxsw_sp_port_hw_stats mlxsw_sp_port_hw_stats[] = {
1804 1805 1806 1807 1808 1809 1810 1811 1812 1813 1814 1815 1816 1817 1818 1819 1820 1821 1822 1823 1824 1825 1826 1827 1828 1829 1830 1831 1832 1833 1834 1835 1836 1837 1838 1839 1840 1841 1842 1843 1844 1845 1846 1847 1848 1849 1850 1851 1852 1853 1854 1855 1856 1857 1858 1859 1860 1861 1862 1863 1864 1865 1866 1867 1868 1869 1870 1871 1872 1873 1874 1875 1876 1877 1878 1879 1880 1881 1882 1883
	{
		.str = "a_frames_transmitted_ok",
		.getter = mlxsw_reg_ppcnt_a_frames_transmitted_ok_get,
	},
	{
		.str = "a_frames_received_ok",
		.getter = mlxsw_reg_ppcnt_a_frames_received_ok_get,
	},
	{
		.str = "a_frame_check_sequence_errors",
		.getter = mlxsw_reg_ppcnt_a_frame_check_sequence_errors_get,
	},
	{
		.str = "a_alignment_errors",
		.getter = mlxsw_reg_ppcnt_a_alignment_errors_get,
	},
	{
		.str = "a_octets_transmitted_ok",
		.getter = mlxsw_reg_ppcnt_a_octets_transmitted_ok_get,
	},
	{
		.str = "a_octets_received_ok",
		.getter = mlxsw_reg_ppcnt_a_octets_received_ok_get,
	},
	{
		.str = "a_multicast_frames_xmitted_ok",
		.getter = mlxsw_reg_ppcnt_a_multicast_frames_xmitted_ok_get,
	},
	{
		.str = "a_broadcast_frames_xmitted_ok",
		.getter = mlxsw_reg_ppcnt_a_broadcast_frames_xmitted_ok_get,
	},
	{
		.str = "a_multicast_frames_received_ok",
		.getter = mlxsw_reg_ppcnt_a_multicast_frames_received_ok_get,
	},
	{
		.str = "a_broadcast_frames_received_ok",
		.getter = mlxsw_reg_ppcnt_a_broadcast_frames_received_ok_get,
	},
	{
		.str = "a_in_range_length_errors",
		.getter = mlxsw_reg_ppcnt_a_in_range_length_errors_get,
	},
	{
		.str = "a_out_of_range_length_field",
		.getter = mlxsw_reg_ppcnt_a_out_of_range_length_field_get,
	},
	{
		.str = "a_frame_too_long_errors",
		.getter = mlxsw_reg_ppcnt_a_frame_too_long_errors_get,
	},
	{
		.str = "a_symbol_error_during_carrier",
		.getter = mlxsw_reg_ppcnt_a_symbol_error_during_carrier_get,
	},
	{
		.str = "a_mac_control_frames_transmitted",
		.getter = mlxsw_reg_ppcnt_a_mac_control_frames_transmitted_get,
	},
	{
		.str = "a_mac_control_frames_received",
		.getter = mlxsw_reg_ppcnt_a_mac_control_frames_received_get,
	},
	{
		.str = "a_unsupported_opcodes_received",
		.getter = mlxsw_reg_ppcnt_a_unsupported_opcodes_received_get,
	},
	{
		.str = "a_pause_mac_ctrl_frames_received",
		.getter = mlxsw_reg_ppcnt_a_pause_mac_ctrl_frames_received_get,
	},
	{
		.str = "a_pause_mac_ctrl_frames_xmitted",
		.getter = mlxsw_reg_ppcnt_a_pause_mac_ctrl_frames_transmitted_get,
	},
};

#define MLXSW_SP_PORT_HW_STATS_LEN ARRAY_SIZE(mlxsw_sp_port_hw_stats)

1884 1885 1886 1887 1888 1889 1890 1891 1892 1893 1894 1895 1896 1897 1898 1899 1900 1901 1902 1903 1904 1905 1906 1907 1908 1909 1910 1911 1912 1913 1914 1915 1916 1917 1918 1919 1920 1921 1922 1923 1924 1925 1926 1927 1928 1929
static struct mlxsw_sp_port_hw_stats mlxsw_sp_port_hw_rfc_2819_stats[] = {
	{
		.str = "ether_pkts64octets",
		.getter = mlxsw_reg_ppcnt_ether_stats_pkts64octets_get,
	},
	{
		.str = "ether_pkts65to127octets",
		.getter = mlxsw_reg_ppcnt_ether_stats_pkts65to127octets_get,
	},
	{
		.str = "ether_pkts128to255octets",
		.getter = mlxsw_reg_ppcnt_ether_stats_pkts128to255octets_get,
	},
	{
		.str = "ether_pkts256to511octets",
		.getter = mlxsw_reg_ppcnt_ether_stats_pkts256to511octets_get,
	},
	{
		.str = "ether_pkts512to1023octets",
		.getter = mlxsw_reg_ppcnt_ether_stats_pkts512to1023octets_get,
	},
	{
		.str = "ether_pkts1024to1518octets",
		.getter = mlxsw_reg_ppcnt_ether_stats_pkts1024to1518octets_get,
	},
	{
		.str = "ether_pkts1519to2047octets",
		.getter = mlxsw_reg_ppcnt_ether_stats_pkts1519to2047octets_get,
	},
	{
		.str = "ether_pkts2048to4095octets",
		.getter = mlxsw_reg_ppcnt_ether_stats_pkts2048to4095octets_get,
	},
	{
		.str = "ether_pkts4096to8191octets",
		.getter = mlxsw_reg_ppcnt_ether_stats_pkts4096to8191octets_get,
	},
	{
		.str = "ether_pkts8192to10239octets",
		.getter = mlxsw_reg_ppcnt_ether_stats_pkts8192to10239octets_get,
	},
};

#define MLXSW_SP_PORT_HW_RFC_2819_STATS_LEN \
	ARRAY_SIZE(mlxsw_sp_port_hw_rfc_2819_stats)

1930 1931 1932 1933 1934 1935 1936 1937 1938 1939 1940 1941 1942 1943 1944 1945 1946 1947 1948 1949 1950 1951 1952 1953 1954 1955 1956 1957 1958 1959 1960 1961 1962 1963 1964 1965 1966
static struct mlxsw_sp_port_hw_stats mlxsw_sp_port_hw_prio_stats[] = {
	{
		.str = "rx_octets_prio",
		.getter = mlxsw_reg_ppcnt_rx_octets_get,
	},
	{
		.str = "rx_frames_prio",
		.getter = mlxsw_reg_ppcnt_rx_frames_get,
	},
	{
		.str = "tx_octets_prio",
		.getter = mlxsw_reg_ppcnt_tx_octets_get,
	},
	{
		.str = "tx_frames_prio",
		.getter = mlxsw_reg_ppcnt_tx_frames_get,
	},
	{
		.str = "rx_pause_prio",
		.getter = mlxsw_reg_ppcnt_rx_pause_get,
	},
	{
		.str = "rx_pause_duration_prio",
		.getter = mlxsw_reg_ppcnt_rx_pause_duration_get,
	},
	{
		.str = "tx_pause_prio",
		.getter = mlxsw_reg_ppcnt_tx_pause_get,
	},
	{
		.str = "tx_pause_duration_prio",
		.getter = mlxsw_reg_ppcnt_tx_pause_duration_get,
	},
};

#define MLXSW_SP_PORT_HW_PRIO_STATS_LEN ARRAY_SIZE(mlxsw_sp_port_hw_prio_stats)

1967 1968 1969
static struct mlxsw_sp_port_hw_stats mlxsw_sp_port_hw_tc_stats[] = {
	{
		.str = "tc_transmit_queue_tc",
1970 1971
		.getter = mlxsw_reg_ppcnt_tc_transmit_queue_get,
		.cells_bytes = true,
1972 1973 1974 1975 1976 1977 1978 1979 1980
	},
	{
		.str = "tc_no_buffer_discard_uc_tc",
		.getter = mlxsw_reg_ppcnt_tc_no_buffer_discard_uc_get,
	},
};

#define MLXSW_SP_PORT_HW_TC_STATS_LEN ARRAY_SIZE(mlxsw_sp_port_hw_tc_stats)

1981
#define MLXSW_SP_PORT_ETHTOOL_STATS_LEN (MLXSW_SP_PORT_HW_STATS_LEN + \
1982
					 MLXSW_SP_PORT_HW_RFC_2819_STATS_LEN + \
1983 1984 1985 1986
					 (MLXSW_SP_PORT_HW_PRIO_STATS_LEN * \
					  IEEE_8021QAZ_MAX_TCS) + \
					 (MLXSW_SP_PORT_HW_TC_STATS_LEN * \
					  TC_MAX_QUEUE))
1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998

static void mlxsw_sp_port_get_prio_strings(u8 **p, int prio)
{
	int i;

	for (i = 0; i < MLXSW_SP_PORT_HW_PRIO_STATS_LEN; i++) {
		snprintf(*p, ETH_GSTRING_LEN, "%s_%d",
			 mlxsw_sp_port_hw_prio_stats[i].str, prio);
		*p += ETH_GSTRING_LEN;
	}
}

1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009
static void mlxsw_sp_port_get_tc_strings(u8 **p, int tc)
{
	int i;

	for (i = 0; i < MLXSW_SP_PORT_HW_TC_STATS_LEN; i++) {
		snprintf(*p, ETH_GSTRING_LEN, "%s_%d",
			 mlxsw_sp_port_hw_tc_stats[i].str, tc);
		*p += ETH_GSTRING_LEN;
	}
}

2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022
static void mlxsw_sp_port_get_strings(struct net_device *dev,
				      u32 stringset, u8 *data)
{
	u8 *p = data;
	int i;

	switch (stringset) {
	case ETH_SS_STATS:
		for (i = 0; i < MLXSW_SP_PORT_HW_STATS_LEN; i++) {
			memcpy(p, mlxsw_sp_port_hw_stats[i].str,
			       ETH_GSTRING_LEN);
			p += ETH_GSTRING_LEN;
		}
2023 2024 2025 2026 2027
		for (i = 0; i < MLXSW_SP_PORT_HW_RFC_2819_STATS_LEN; i++) {
			memcpy(p, mlxsw_sp_port_hw_rfc_2819_stats[i].str,
			       ETH_GSTRING_LEN);
			p += ETH_GSTRING_LEN;
		}
2028 2029 2030 2031

		for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++)
			mlxsw_sp_port_get_prio_strings(&p, i);

2032
		for (i = 0; i < TC_MAX_QUEUE; i++)
2033 2034
			mlxsw_sp_port_get_tc_strings(&p, i);

2035 2036 2037 2038
		break;
	}
}

2039 2040 2041 2042 2043 2044 2045 2046 2047 2048 2049 2050 2051 2052 2053 2054 2055 2056 2057 2058 2059 2060 2061
static int mlxsw_sp_port_set_phys_id(struct net_device *dev,
				     enum ethtool_phys_id_state state)
{
	struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
	char mlcr_pl[MLXSW_REG_MLCR_LEN];
	bool active;

	switch (state) {
	case ETHTOOL_ID_ACTIVE:
		active = true;
		break;
	case ETHTOOL_ID_INACTIVE:
		active = false;
		break;
	default:
		return -EOPNOTSUPP;
	}

	mlxsw_reg_mlcr_pack(mlcr_pl, mlxsw_sp_port->local_port, active);
	return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(mlcr), mlcr_pl);
}

2062 2063 2064 2065 2066
static int
mlxsw_sp_get_hw_stats_by_group(struct mlxsw_sp_port_hw_stats **p_hw_stats,
			       int *p_len, enum mlxsw_reg_ppcnt_grp grp)
{
	switch (grp) {
2067
	case MLXSW_REG_PPCNT_IEEE_8023_CNT:
2068 2069 2070
		*p_hw_stats = mlxsw_sp_port_hw_stats;
		*p_len = MLXSW_SP_PORT_HW_STATS_LEN;
		break;
2071 2072 2073 2074
	case MLXSW_REG_PPCNT_RFC_2819_CNT:
		*p_hw_stats = mlxsw_sp_port_hw_rfc_2819_stats;
		*p_len = MLXSW_SP_PORT_HW_RFC_2819_STATS_LEN;
		break;
2075 2076 2077 2078
	case MLXSW_REG_PPCNT_PRIO_CNT:
		*p_hw_stats = mlxsw_sp_port_hw_prio_stats;
		*p_len = MLXSW_SP_PORT_HW_PRIO_STATS_LEN;
		break;
2079 2080 2081 2082
	case MLXSW_REG_PPCNT_TC_CNT:
		*p_hw_stats = mlxsw_sp_port_hw_tc_stats;
		*p_len = MLXSW_SP_PORT_HW_TC_STATS_LEN;
		break;
2083 2084
	default:
		WARN_ON(1);
2085
		return -EOPNOTSUPP;
2086 2087 2088 2089 2090 2091 2092
	}
	return 0;
}

static void __mlxsw_sp_port_get_stats(struct net_device *dev,
				      enum mlxsw_reg_ppcnt_grp grp, int prio,
				      u64 *data, int data_index)
2093
{
2094 2095
	struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
2096
	struct mlxsw_sp_port_hw_stats *hw_stats;
2097
	char ppcnt_pl[MLXSW_REG_PPCNT_LEN];
2098
	int i, len;
2099 2100
	int err;

2101 2102 2103
	err = mlxsw_sp_get_hw_stats_by_group(&hw_stats, &len, grp);
	if (err)
		return;
2104
	mlxsw_sp_port_get_stats_raw(dev, grp, prio, ppcnt_pl);
2105
	for (i = 0; i < len; i++) {
2106
		data[data_index + i] = hw_stats[i].getter(ppcnt_pl);
2107 2108 2109 2110 2111
		if (!hw_stats[i].cells_bytes)
			continue;
		data[data_index + i] = mlxsw_sp_cells_bytes(mlxsw_sp,
							    data[data_index + i]);
	}
2112 2113 2114 2115 2116 2117 2118 2119 2120 2121 2122 2123
}

static void mlxsw_sp_port_get_stats(struct net_device *dev,
				    struct ethtool_stats *stats, u64 *data)
{
	int i, data_index = 0;

	/* IEEE 802.3 Counters */
	__mlxsw_sp_port_get_stats(dev, MLXSW_REG_PPCNT_IEEE_8023_CNT, 0,
				  data, data_index);
	data_index = MLXSW_SP_PORT_HW_STATS_LEN;

2124 2125 2126 2127 2128
	/* RFC 2819 Counters */
	__mlxsw_sp_port_get_stats(dev, MLXSW_REG_PPCNT_RFC_2819_CNT, 0,
				  data, data_index);
	data_index += MLXSW_SP_PORT_HW_RFC_2819_STATS_LEN;

2129 2130 2131 2132 2133 2134
	/* Per-Priority Counters */
	for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) {
		__mlxsw_sp_port_get_stats(dev, MLXSW_REG_PPCNT_PRIO_CNT, i,
					  data, data_index);
		data_index += MLXSW_SP_PORT_HW_PRIO_STATS_LEN;
	}
2135 2136

	/* Per-TC Counters */
2137
	for (i = 0; i < TC_MAX_QUEUE; i++) {
2138 2139 2140 2141
		__mlxsw_sp_port_get_stats(dev, MLXSW_REG_PPCNT_TC_CNT, i,
					  data, data_index);
		data_index += MLXSW_SP_PORT_HW_TC_STATS_LEN;
	}
2142 2143 2144 2145 2146 2147
}

static int mlxsw_sp_port_get_sset_count(struct net_device *dev, int sset)
{
	switch (sset) {
	case ETH_SS_STATS:
2148
		return MLXSW_SP_PORT_ETHTOOL_STATS_LEN;
2149 2150 2151 2152 2153 2154
	default:
		return -EOPNOTSUPP;
	}
}

struct mlxsw_sp_port_link_mode {
2155
	enum ethtool_link_mode_bit_indices mask_ethtool;
2156 2157 2158 2159 2160 2161 2162
	u32 mask;
	u32 speed;
};

static const struct mlxsw_sp_port_link_mode mlxsw_sp_port_link_mode[] = {
	{
		.mask		= MLXSW_REG_PTYS_ETH_SPEED_100BASE_T,
2163 2164
		.mask_ethtool	= ETHTOOL_LINK_MODE_100baseT_Full_BIT,
		.speed		= SPEED_100,
2165 2166 2167 2168
	},
	{
		.mask		= MLXSW_REG_PTYS_ETH_SPEED_SGMII |
				  MLXSW_REG_PTYS_ETH_SPEED_1000BASE_KX,
2169 2170
		.mask_ethtool	= ETHTOOL_LINK_MODE_1000baseKX_Full_BIT,
		.speed		= SPEED_1000,
2171 2172 2173
	},
	{
		.mask		= MLXSW_REG_PTYS_ETH_SPEED_10GBASE_T,
2174 2175
		.mask_ethtool	= ETHTOOL_LINK_MODE_10000baseT_Full_BIT,
		.speed		= SPEED_10000,
2176 2177 2178 2179
	},
	{
		.mask		= MLXSW_REG_PTYS_ETH_SPEED_10GBASE_CX4 |
				  MLXSW_REG_PTYS_ETH_SPEED_10GBASE_KX4,
2180 2181
		.mask_ethtool	= ETHTOOL_LINK_MODE_10000baseKX4_Full_BIT,
		.speed		= SPEED_10000,
2182 2183 2184 2185 2186 2187
	},
	{
		.mask		= MLXSW_REG_PTYS_ETH_SPEED_10GBASE_KR |
				  MLXSW_REG_PTYS_ETH_SPEED_10GBASE_CR |
				  MLXSW_REG_PTYS_ETH_SPEED_10GBASE_SR |
				  MLXSW_REG_PTYS_ETH_SPEED_10GBASE_ER_LR,
2188 2189
		.mask_ethtool	= ETHTOOL_LINK_MODE_10000baseKR_Full_BIT,
		.speed		= SPEED_10000,
2190 2191 2192
	},
	{
		.mask		= MLXSW_REG_PTYS_ETH_SPEED_20GBASE_KR2,
2193 2194
		.mask_ethtool	= ETHTOOL_LINK_MODE_20000baseKR2_Full_BIT,
		.speed		= SPEED_20000,
2195 2196 2197
	},
	{
		.mask		= MLXSW_REG_PTYS_ETH_SPEED_40GBASE_CR4,
2198 2199
		.mask_ethtool	= ETHTOOL_LINK_MODE_40000baseCR4_Full_BIT,
		.speed		= SPEED_40000,
2200 2201 2202
	},
	{
		.mask		= MLXSW_REG_PTYS_ETH_SPEED_40GBASE_KR4,
2203 2204
		.mask_ethtool	= ETHTOOL_LINK_MODE_40000baseKR4_Full_BIT,
		.speed		= SPEED_40000,
2205 2206 2207
	},
	{
		.mask		= MLXSW_REG_PTYS_ETH_SPEED_40GBASE_SR4,
2208 2209
		.mask_ethtool	= ETHTOOL_LINK_MODE_40000baseSR4_Full_BIT,
		.speed		= SPEED_40000,
2210 2211 2212
	},
	{
		.mask		= MLXSW_REG_PTYS_ETH_SPEED_40GBASE_LR4_ER4,
2213 2214 2215 2216 2217 2218 2219 2220 2221 2222 2223 2224 2225 2226 2227 2228 2229
		.mask_ethtool	= ETHTOOL_LINK_MODE_40000baseLR4_Full_BIT,
		.speed		= SPEED_40000,
	},
	{
		.mask		= MLXSW_REG_PTYS_ETH_SPEED_25GBASE_CR,
		.mask_ethtool	= ETHTOOL_LINK_MODE_25000baseCR_Full_BIT,
		.speed		= SPEED_25000,
	},
	{
		.mask		= MLXSW_REG_PTYS_ETH_SPEED_25GBASE_KR,
		.mask_ethtool	= ETHTOOL_LINK_MODE_25000baseKR_Full_BIT,
		.speed		= SPEED_25000,
	},
	{
		.mask		= MLXSW_REG_PTYS_ETH_SPEED_25GBASE_SR,
		.mask_ethtool	= ETHTOOL_LINK_MODE_25000baseSR_Full_BIT,
		.speed		= SPEED_25000,
2230 2231
	},
	{
2232 2233 2234
		.mask		= MLXSW_REG_PTYS_ETH_SPEED_25GBASE_SR,
		.mask_ethtool	= ETHTOOL_LINK_MODE_25000baseSR_Full_BIT,
		.speed		= SPEED_25000,
2235 2236
	},
	{
2237 2238 2239 2240 2241 2242 2243 2244 2245 2246 2247 2248 2249
		.mask		= MLXSW_REG_PTYS_ETH_SPEED_50GBASE_CR2,
		.mask_ethtool	= ETHTOOL_LINK_MODE_50000baseCR2_Full_BIT,
		.speed		= SPEED_50000,
	},
	{
		.mask		= MLXSW_REG_PTYS_ETH_SPEED_50GBASE_KR2,
		.mask_ethtool	= ETHTOOL_LINK_MODE_50000baseKR2_Full_BIT,
		.speed		= SPEED_50000,
	},
	{
		.mask		= MLXSW_REG_PTYS_ETH_SPEED_50GBASE_SR2,
		.mask_ethtool	= ETHTOOL_LINK_MODE_50000baseSR2_Full_BIT,
		.speed		= SPEED_50000,
2250 2251 2252
	},
	{
		.mask		= MLXSW_REG_PTYS_ETH_SPEED_56GBASE_R4,
2253 2254
		.mask_ethtool	= ETHTOOL_LINK_MODE_56000baseKR4_Full_BIT,
		.speed		= SPEED_56000,
2255 2256
	},
	{
2257 2258 2259 2260 2261 2262 2263 2264 2265 2266 2267 2268 2269 2270 2271 2272 2273 2274 2275 2276 2277 2278 2279 2280 2281 2282 2283 2284 2285 2286 2287 2288 2289
		.mask		= MLXSW_REG_PTYS_ETH_SPEED_56GBASE_R4,
		.mask_ethtool	= ETHTOOL_LINK_MODE_56000baseCR4_Full_BIT,
		.speed		= SPEED_56000,
	},
	{
		.mask		= MLXSW_REG_PTYS_ETH_SPEED_56GBASE_R4,
		.mask_ethtool	= ETHTOOL_LINK_MODE_56000baseSR4_Full_BIT,
		.speed		= SPEED_56000,
	},
	{
		.mask		= MLXSW_REG_PTYS_ETH_SPEED_56GBASE_R4,
		.mask_ethtool	= ETHTOOL_LINK_MODE_56000baseLR4_Full_BIT,
		.speed		= SPEED_56000,
	},
	{
		.mask		= MLXSW_REG_PTYS_ETH_SPEED_100GBASE_CR4,
		.mask_ethtool	= ETHTOOL_LINK_MODE_100000baseCR4_Full_BIT,
		.speed		= SPEED_100000,
	},
	{
		.mask		= MLXSW_REG_PTYS_ETH_SPEED_100GBASE_SR4,
		.mask_ethtool	= ETHTOOL_LINK_MODE_100000baseSR4_Full_BIT,
		.speed		= SPEED_100000,
	},
	{
		.mask		= MLXSW_REG_PTYS_ETH_SPEED_100GBASE_KR4,
		.mask_ethtool	= ETHTOOL_LINK_MODE_100000baseKR4_Full_BIT,
		.speed		= SPEED_100000,
	},
	{
		.mask		= MLXSW_REG_PTYS_ETH_SPEED_100GBASE_LR4_ER4,
		.mask_ethtool	= ETHTOOL_LINK_MODE_100000baseLR4_ER4_Full_BIT,
		.speed		= SPEED_100000,
2290 2291 2292 2293 2294
	},
};

#define MLXSW_SP_PORT_LINK_MODE_LEN ARRAY_SIZE(mlxsw_sp_port_link_mode)

2295 2296 2297
static void
mlxsw_sp_from_ptys_supported_port(u32 ptys_eth_proto,
				  struct ethtool_link_ksettings *cmd)
2298 2299 2300 2301 2302 2303 2304
{
	if (ptys_eth_proto & (MLXSW_REG_PTYS_ETH_SPEED_10GBASE_CR |
			      MLXSW_REG_PTYS_ETH_SPEED_10GBASE_SR |
			      MLXSW_REG_PTYS_ETH_SPEED_40GBASE_CR4 |
			      MLXSW_REG_PTYS_ETH_SPEED_40GBASE_SR4 |
			      MLXSW_REG_PTYS_ETH_SPEED_100GBASE_SR4 |
			      MLXSW_REG_PTYS_ETH_SPEED_SGMII))
2305
		ethtool_link_ksettings_add_link_mode(cmd, supported, FIBRE);
2306 2307 2308 2309 2310 2311

	if (ptys_eth_proto & (MLXSW_REG_PTYS_ETH_SPEED_10GBASE_KR |
			      MLXSW_REG_PTYS_ETH_SPEED_10GBASE_KX4 |
			      MLXSW_REG_PTYS_ETH_SPEED_40GBASE_KR4 |
			      MLXSW_REG_PTYS_ETH_SPEED_100GBASE_KR4 |
			      MLXSW_REG_PTYS_ETH_SPEED_1000BASE_KX))
2312
		ethtool_link_ksettings_add_link_mode(cmd, supported, Backplane);
2313 2314
}

2315
static void mlxsw_sp_from_ptys_link(u32 ptys_eth_proto, unsigned long *mode)
2316 2317 2318 2319 2320
{
	int i;

	for (i = 0; i < MLXSW_SP_PORT_LINK_MODE_LEN; i++) {
		if (ptys_eth_proto & mlxsw_sp_port_link_mode[i].mask)
2321 2322
			__set_bit(mlxsw_sp_port_link_mode[i].mask_ethtool,
				  mode);
2323 2324 2325 2326
	}
}

static void mlxsw_sp_from_ptys_speed_duplex(bool carrier_ok, u32 ptys_eth_proto,
2327
					    struct ethtool_link_ksettings *cmd)
2328 2329 2330 2331 2332 2333 2334 2335 2336 2337 2338 2339 2340 2341 2342 2343
{
	u32 speed = SPEED_UNKNOWN;
	u8 duplex = DUPLEX_UNKNOWN;
	int i;

	if (!carrier_ok)
		goto out;

	for (i = 0; i < MLXSW_SP_PORT_LINK_MODE_LEN; i++) {
		if (ptys_eth_proto & mlxsw_sp_port_link_mode[i].mask) {
			speed = mlxsw_sp_port_link_mode[i].speed;
			duplex = DUPLEX_FULL;
			break;
		}
	}
out:
2344 2345
	cmd->base.speed = speed;
	cmd->base.duplex = duplex;
2346 2347 2348 2349 2350 2351 2352 2353 2354 2355 2356 2357 2358 2359 2360 2361 2362 2363 2364 2365 2366 2367 2368 2369
}

static u8 mlxsw_sp_port_connector_port(u32 ptys_eth_proto)
{
	if (ptys_eth_proto & (MLXSW_REG_PTYS_ETH_SPEED_10GBASE_SR |
			      MLXSW_REG_PTYS_ETH_SPEED_40GBASE_SR4 |
			      MLXSW_REG_PTYS_ETH_SPEED_100GBASE_SR4 |
			      MLXSW_REG_PTYS_ETH_SPEED_SGMII))
		return PORT_FIBRE;

	if (ptys_eth_proto & (MLXSW_REG_PTYS_ETH_SPEED_10GBASE_CR |
			      MLXSW_REG_PTYS_ETH_SPEED_40GBASE_CR4 |
			      MLXSW_REG_PTYS_ETH_SPEED_100GBASE_CR4))
		return PORT_DA;

	if (ptys_eth_proto & (MLXSW_REG_PTYS_ETH_SPEED_10GBASE_KR |
			      MLXSW_REG_PTYS_ETH_SPEED_10GBASE_KX4 |
			      MLXSW_REG_PTYS_ETH_SPEED_40GBASE_KR4 |
			      MLXSW_REG_PTYS_ETH_SPEED_100GBASE_KR4))
		return PORT_NONE;

	return PORT_OTHER;
}

2370 2371
static u32
mlxsw_sp_to_ptys_advert_link(const struct ethtool_link_ksettings *cmd)
2372 2373 2374 2375 2376
{
	u32 ptys_proto = 0;
	int i;

	for (i = 0; i < MLXSW_SP_PORT_LINK_MODE_LEN; i++) {
2377 2378
		if (test_bit(mlxsw_sp_port_link_mode[i].mask_ethtool,
			     cmd->link_modes.advertising))
2379 2380 2381 2382 2383 2384 2385 2386 2387 2388 2389 2390 2391 2392 2393 2394 2395
			ptys_proto |= mlxsw_sp_port_link_mode[i].mask;
	}
	return ptys_proto;
}

static u32 mlxsw_sp_to_ptys_speed(u32 speed)
{
	u32 ptys_proto = 0;
	int i;

	for (i = 0; i < MLXSW_SP_PORT_LINK_MODE_LEN; i++) {
		if (speed == mlxsw_sp_port_link_mode[i].speed)
			ptys_proto |= mlxsw_sp_port_link_mode[i].mask;
	}
	return ptys_proto;
}

2396 2397 2398 2399 2400 2401 2402 2403 2404 2405 2406 2407
static u32 mlxsw_sp_to_ptys_upper_speed(u32 upper_speed)
{
	u32 ptys_proto = 0;
	int i;

	for (i = 0; i < MLXSW_SP_PORT_LINK_MODE_LEN; i++) {
		if (mlxsw_sp_port_link_mode[i].speed <= upper_speed)
			ptys_proto |= mlxsw_sp_port_link_mode[i].mask;
	}
	return ptys_proto;
}

2408 2409 2410 2411 2412 2413 2414 2415 2416 2417 2418 2419 2420
static void mlxsw_sp_port_get_link_supported(u32 eth_proto_cap,
					     struct ethtool_link_ksettings *cmd)
{
	ethtool_link_ksettings_add_link_mode(cmd, supported, Asym_Pause);
	ethtool_link_ksettings_add_link_mode(cmd, supported, Autoneg);
	ethtool_link_ksettings_add_link_mode(cmd, supported, Pause);

	mlxsw_sp_from_ptys_supported_port(eth_proto_cap, cmd);
	mlxsw_sp_from_ptys_link(eth_proto_cap, cmd->link_modes.supported);
}

static void mlxsw_sp_port_get_link_advertise(u32 eth_proto_admin, bool autoneg,
					     struct ethtool_link_ksettings *cmd)
2421
{
2422 2423 2424 2425 2426 2427 2428 2429 2430 2431 2432 2433 2434 2435 2436 2437 2438 2439 2440 2441 2442 2443
	if (!autoneg)
		return;

	ethtool_link_ksettings_add_link_mode(cmd, advertising, Autoneg);
	mlxsw_sp_from_ptys_link(eth_proto_admin, cmd->link_modes.advertising);
}

static void
mlxsw_sp_port_get_link_lp_advertise(u32 eth_proto_lp, u8 autoneg_status,
				    struct ethtool_link_ksettings *cmd)
{
	if (autoneg_status != MLXSW_REG_PTYS_AN_STATUS_OK || !eth_proto_lp)
		return;

	ethtool_link_ksettings_add_link_mode(cmd, lp_advertising, Autoneg);
	mlxsw_sp_from_ptys_link(eth_proto_lp, cmd->link_modes.lp_advertising);
}

static int mlxsw_sp_port_get_link_ksettings(struct net_device *dev,
					    struct ethtool_link_ksettings *cmd)
{
	u32 eth_proto_cap, eth_proto_admin, eth_proto_oper, eth_proto_lp;
2444 2445 2446
	struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
	char ptys_pl[MLXSW_REG_PTYS_LEN];
2447
	u8 autoneg_status;
2448
	bool autoneg;
2449 2450
	int err;

2451
	autoneg = mlxsw_sp_port->link.autoneg;
2452
	mlxsw_reg_ptys_eth_pack(ptys_pl, mlxsw_sp_port->local_port, 0, false);
2453 2454 2455
	err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(ptys), ptys_pl);
	if (err)
		return err;
2456 2457
	mlxsw_reg_ptys_eth_unpack(ptys_pl, &eth_proto_cap, &eth_proto_admin,
				  &eth_proto_oper);
2458 2459

	mlxsw_sp_port_get_link_supported(eth_proto_cap, cmd);
2460

2461 2462 2463 2464 2465 2466 2467 2468 2469 2470 2471 2472 2473 2474 2475 2476 2477 2478 2479 2480 2481 2482 2483 2484
	mlxsw_sp_port_get_link_advertise(eth_proto_admin, autoneg, cmd);

	eth_proto_lp = mlxsw_reg_ptys_eth_proto_lp_advertise_get(ptys_pl);
	autoneg_status = mlxsw_reg_ptys_an_status_get(ptys_pl);
	mlxsw_sp_port_get_link_lp_advertise(eth_proto_lp, autoneg_status, cmd);

	cmd->base.autoneg = autoneg ? AUTONEG_ENABLE : AUTONEG_DISABLE;
	cmd->base.port = mlxsw_sp_port_connector_port(eth_proto_oper);
	mlxsw_sp_from_ptys_speed_duplex(netif_carrier_ok(dev), eth_proto_oper,
					cmd);

	return 0;
}

static int
mlxsw_sp_port_set_link_ksettings(struct net_device *dev,
				 const struct ethtool_link_ksettings *cmd)
{
	struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
	char ptys_pl[MLXSW_REG_PTYS_LEN];
	u32 eth_proto_cap, eth_proto_new;
	bool autoneg;
	int err;
2485

2486
	mlxsw_reg_ptys_eth_pack(ptys_pl, mlxsw_sp_port->local_port, 0, false);
2487
	err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(ptys), ptys_pl);
2488
	if (err)
2489
		return err;
2490
	mlxsw_reg_ptys_eth_unpack(ptys_pl, &eth_proto_cap, NULL, NULL);
2491 2492 2493 2494 2495

	autoneg = cmd->base.autoneg == AUTONEG_ENABLE;
	eth_proto_new = autoneg ?
		mlxsw_sp_to_ptys_advert_link(cmd) :
		mlxsw_sp_to_ptys_speed(cmd->base.speed);
2496 2497 2498

	eth_proto_new = eth_proto_new & eth_proto_cap;
	if (!eth_proto_new) {
2499
		netdev_err(dev, "No supported speed requested\n");
2500 2501 2502
		return -EINVAL;
	}

2503
	mlxsw_reg_ptys_eth_pack(ptys_pl, mlxsw_sp_port->local_port,
2504
				eth_proto_new, autoneg);
2505
	err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(ptys), ptys_pl);
2506
	if (err)
2507 2508
		return err;

2509
	if (!netif_running(dev))
2510 2511
		return 0;

2512 2513
	mlxsw_sp_port->link.autoneg = autoneg;

2514 2515
	mlxsw_sp_port_admin_status_set(mlxsw_sp_port, false);
	mlxsw_sp_port_admin_status_set(mlxsw_sp_port, true);
2516 2517 2518 2519

	return 0;
}

2520 2521 2522 2523 2524 2525 2526 2527 2528 2529 2530 2531 2532 2533 2534 2535 2536 2537 2538 2539 2540 2541 2542 2543 2544
static int mlxsw_sp_flash_device(struct net_device *dev,
				 struct ethtool_flash *flash)
{
	struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
	const struct firmware *firmware;
	int err;

	if (flash->region != ETHTOOL_FLASH_ALL_REGIONS)
		return -EOPNOTSUPP;

	dev_hold(dev);
	rtnl_unlock();

	err = request_firmware_direct(&firmware, flash->data, &dev->dev);
	if (err)
		goto out;
	err = mlxsw_sp_firmware_flash(mlxsw_sp, firmware);
	release_firmware(firmware);
out:
	rtnl_lock();
	dev_put(dev);
	return err;
}

2545 2546 2547
#define MLXSW_SP_I2C_ADDR_LOW 0x50
#define MLXSW_SP_I2C_ADDR_HIGH 0x51
#define MLXSW_SP_EEPROM_PAGE_LENGTH 256
2548 2549 2550 2551 2552 2553 2554 2555

static int mlxsw_sp_query_module_eeprom(struct mlxsw_sp_port *mlxsw_sp_port,
					u16 offset, u16 size, void *data,
					unsigned int *p_read_size)
{
	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
	char eeprom_tmp[MLXSW_SP_REG_MCIA_EEPROM_SIZE];
	char mcia_pl[MLXSW_REG_MCIA_LEN];
2556
	u16 i2c_addr;
2557 2558 2559 2560
	int status;
	int err;

	size = min_t(u16, size, MLXSW_SP_REG_MCIA_EEPROM_SIZE);
2561 2562 2563 2564 2565 2566 2567 2568 2569 2570 2571 2572

	if (offset < MLXSW_SP_EEPROM_PAGE_LENGTH &&
	    offset + size > MLXSW_SP_EEPROM_PAGE_LENGTH)
		/* Cross pages read, read until offset 256 in low page */
		size = MLXSW_SP_EEPROM_PAGE_LENGTH - offset;

	i2c_addr = MLXSW_SP_I2C_ADDR_LOW;
	if (offset >= MLXSW_SP_EEPROM_PAGE_LENGTH) {
		i2c_addr = MLXSW_SP_I2C_ADDR_HIGH;
		offset -= MLXSW_SP_EEPROM_PAGE_LENGTH;
	}

2573
	mlxsw_reg_mcia_pack(mcia_pl, mlxsw_sp_port->mapping.module,
2574
			    0, 0, offset, size, i2c_addr);
2575 2576 2577 2578 2579 2580 2581 2582 2583 2584 2585 2586 2587 2588 2589 2590 2591 2592 2593 2594 2595 2596 2597 2598 2599 2600 2601 2602 2603 2604 2605 2606 2607 2608 2609 2610 2611 2612 2613 2614 2615 2616 2617 2618 2619 2620 2621 2622 2623 2624 2625 2626 2627 2628 2629 2630 2631 2632 2633 2634 2635 2636 2637 2638 2639 2640 2641 2642 2643 2644 2645 2646 2647 2648 2649 2650 2651 2652 2653 2654 2655 2656 2657 2658 2659 2660 2661 2662 2663 2664 2665 2666 2667 2668 2669 2670 2671 2672 2673 2674 2675 2676 2677 2678 2679 2680 2681 2682 2683 2684 2685 2686 2687 2688

	err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(mcia), mcia_pl);
	if (err)
		return err;

	status = mlxsw_reg_mcia_status_get(mcia_pl);
	if (status)
		return -EIO;

	mlxsw_reg_mcia_eeprom_memcpy_from(mcia_pl, eeprom_tmp);
	memcpy(data, eeprom_tmp, size);
	*p_read_size = size;

	return 0;
}

enum mlxsw_sp_eeprom_module_info_rev_id {
	MLXSW_SP_EEPROM_MODULE_INFO_REV_ID_UNSPC      = 0x00,
	MLXSW_SP_EEPROM_MODULE_INFO_REV_ID_8436       = 0x01,
	MLXSW_SP_EEPROM_MODULE_INFO_REV_ID_8636       = 0x03,
};

enum mlxsw_sp_eeprom_module_info_id {
	MLXSW_SP_EEPROM_MODULE_INFO_ID_SFP              = 0x03,
	MLXSW_SP_EEPROM_MODULE_INFO_ID_QSFP             = 0x0C,
	MLXSW_SP_EEPROM_MODULE_INFO_ID_QSFP_PLUS        = 0x0D,
	MLXSW_SP_EEPROM_MODULE_INFO_ID_QSFP28           = 0x11,
};

enum mlxsw_sp_eeprom_module_info {
	MLXSW_SP_EEPROM_MODULE_INFO_ID,
	MLXSW_SP_EEPROM_MODULE_INFO_REV_ID,
	MLXSW_SP_EEPROM_MODULE_INFO_SIZE,
};

static int mlxsw_sp_get_module_info(struct net_device *netdev,
				    struct ethtool_modinfo *modinfo)
{
	struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(netdev);
	u8 module_info[MLXSW_SP_EEPROM_MODULE_INFO_SIZE];
	u8 module_rev_id, module_id;
	unsigned int read_size;
	int err;

	err = mlxsw_sp_query_module_eeprom(mlxsw_sp_port, 0,
					   MLXSW_SP_EEPROM_MODULE_INFO_SIZE,
					   module_info, &read_size);
	if (err)
		return err;

	if (read_size < MLXSW_SP_EEPROM_MODULE_INFO_SIZE)
		return -EIO;

	module_rev_id = module_info[MLXSW_SP_EEPROM_MODULE_INFO_REV_ID];
	module_id = module_info[MLXSW_SP_EEPROM_MODULE_INFO_ID];

	switch (module_id) {
	case MLXSW_SP_EEPROM_MODULE_INFO_ID_QSFP:
		modinfo->type       = ETH_MODULE_SFF_8436;
		modinfo->eeprom_len = ETH_MODULE_SFF_8436_LEN;
		break;
	case MLXSW_SP_EEPROM_MODULE_INFO_ID_QSFP_PLUS:
	case MLXSW_SP_EEPROM_MODULE_INFO_ID_QSFP28:
		if (module_id  == MLXSW_SP_EEPROM_MODULE_INFO_ID_QSFP28 ||
		    module_rev_id >= MLXSW_SP_EEPROM_MODULE_INFO_REV_ID_8636) {
			modinfo->type       = ETH_MODULE_SFF_8636;
			modinfo->eeprom_len = ETH_MODULE_SFF_8636_LEN;
		} else {
			modinfo->type       = ETH_MODULE_SFF_8436;
			modinfo->eeprom_len = ETH_MODULE_SFF_8436_LEN;
		}
		break;
	case MLXSW_SP_EEPROM_MODULE_INFO_ID_SFP:
		modinfo->type       = ETH_MODULE_SFF_8472;
		modinfo->eeprom_len = ETH_MODULE_SFF_8472_LEN;
		break;
	default:
		return -EINVAL;
	}

	return 0;
}

static int mlxsw_sp_get_module_eeprom(struct net_device *netdev,
				      struct ethtool_eeprom *ee,
				      u8 *data)
{
	struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(netdev);
	int offset = ee->offset;
	unsigned int read_size;
	int i = 0;
	int err;

	if (!ee->len)
		return -EINVAL;

	memset(data, 0, ee->len);

	while (i < ee->len) {
		err = mlxsw_sp_query_module_eeprom(mlxsw_sp_port, offset,
						   ee->len - i, data + i,
						   &read_size);
		if (err) {
			netdev_err(mlxsw_sp_port->dev, "Eeprom query failed\n");
			return err;
		}

		i += read_size;
		offset += read_size;
	}

	return 0;
}

2689 2690 2691
static const struct ethtool_ops mlxsw_sp_port_ethtool_ops = {
	.get_drvinfo		= mlxsw_sp_port_get_drvinfo,
	.get_link		= ethtool_op_get_link,
2692 2693
	.get_pauseparam		= mlxsw_sp_port_get_pauseparam,
	.set_pauseparam		= mlxsw_sp_port_set_pauseparam,
2694
	.get_strings		= mlxsw_sp_port_get_strings,
2695
	.set_phys_id		= mlxsw_sp_port_set_phys_id,
2696 2697
	.get_ethtool_stats	= mlxsw_sp_port_get_stats,
	.get_sset_count		= mlxsw_sp_port_get_sset_count,
2698 2699
	.get_link_ksettings	= mlxsw_sp_port_get_link_ksettings,
	.set_link_ksettings	= mlxsw_sp_port_set_link_ksettings,
2700
	.flash_device		= mlxsw_sp_flash_device,
2701 2702
	.get_module_info	= mlxsw_sp_get_module_info,
	.get_module_eeprom	= mlxsw_sp_get_module_eeprom,
2703 2704
};

2705 2706 2707 2708 2709 2710 2711 2712 2713
static int
mlxsw_sp_port_speed_by_width_set(struct mlxsw_sp_port *mlxsw_sp_port, u8 width)
{
	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
	u32 upper_speed = MLXSW_SP_PORT_BASE_SPEED * width;
	char ptys_pl[MLXSW_REG_PTYS_LEN];
	u32 eth_proto_admin;

	eth_proto_admin = mlxsw_sp_to_ptys_upper_speed(upper_speed);
2714
	mlxsw_reg_ptys_eth_pack(ptys_pl, mlxsw_sp_port->local_port,
2715
				eth_proto_admin, mlxsw_sp_port->link.autoneg);
2716 2717 2718
	return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(ptys), ptys_pl);
}

2719 2720 2721
int mlxsw_sp_port_ets_set(struct mlxsw_sp_port *mlxsw_sp_port,
			  enum mlxsw_reg_qeec_hr hr, u8 index, u8 next_index,
			  bool dwrr, u8 dwrr_weight)
2722 2723 2724 2725 2726 2727 2728 2729 2730 2731 2732 2733
{
	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
	char qeec_pl[MLXSW_REG_QEEC_LEN];

	mlxsw_reg_qeec_pack(qeec_pl, mlxsw_sp_port->local_port, hr, index,
			    next_index);
	mlxsw_reg_qeec_de_set(qeec_pl, true);
	mlxsw_reg_qeec_dwrr_set(qeec_pl, dwrr);
	mlxsw_reg_qeec_dwrr_weight_set(qeec_pl, dwrr_weight);
	return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(qeec), qeec_pl);
}

2734 2735 2736
int mlxsw_sp_port_ets_maxrate_set(struct mlxsw_sp_port *mlxsw_sp_port,
				  enum mlxsw_reg_qeec_hr hr, u8 index,
				  u8 next_index, u32 maxrate)
2737 2738 2739 2740 2741 2742 2743 2744 2745 2746 2747
{
	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
	char qeec_pl[MLXSW_REG_QEEC_LEN];

	mlxsw_reg_qeec_pack(qeec_pl, mlxsw_sp_port->local_port, hr, index,
			    next_index);
	mlxsw_reg_qeec_mase_set(qeec_pl, true);
	mlxsw_reg_qeec_max_shaper_rate_set(qeec_pl, maxrate);
	return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(qeec), qeec_pl);
}

2748 2749 2750 2751 2752 2753 2754 2755 2756 2757 2758 2759 2760 2761 2762
static int mlxsw_sp_port_min_bw_set(struct mlxsw_sp_port *mlxsw_sp_port,
				    enum mlxsw_reg_qeec_hr hr, u8 index,
				    u8 next_index, u32 minrate)
{
	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
	char qeec_pl[MLXSW_REG_QEEC_LEN];

	mlxsw_reg_qeec_pack(qeec_pl, mlxsw_sp_port->local_port, hr, index,
			    next_index);
	mlxsw_reg_qeec_mise_set(qeec_pl, true);
	mlxsw_reg_qeec_min_shaper_rate_set(qeec_pl, minrate);

	return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(qeec), qeec_pl);
}

2763 2764
int mlxsw_sp_port_prio_tc_set(struct mlxsw_sp_port *mlxsw_sp_port,
			      u8 switch_prio, u8 tclass)
2765 2766 2767 2768 2769 2770 2771 2772 2773 2774 2775 2776 2777 2778 2779 2780 2781 2782 2783 2784 2785 2786 2787 2788 2789 2790 2791 2792 2793 2794 2795 2796 2797 2798
{
	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
	char qtct_pl[MLXSW_REG_QTCT_LEN];

	mlxsw_reg_qtct_pack(qtct_pl, mlxsw_sp_port->local_port, switch_prio,
			    tclass);
	return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(qtct), qtct_pl);
}

static int mlxsw_sp_port_ets_init(struct mlxsw_sp_port *mlxsw_sp_port)
{
	int err, i;

	/* Setup the elements hierarcy, so that each TC is linked to
	 * one subgroup, which are all member in the same group.
	 */
	err = mlxsw_sp_port_ets_set(mlxsw_sp_port,
				    MLXSW_REG_QEEC_HIERARCY_GROUP, 0, 0, false,
				    0);
	if (err)
		return err;
	for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) {
		err = mlxsw_sp_port_ets_set(mlxsw_sp_port,
					    MLXSW_REG_QEEC_HIERARCY_SUBGROUP, i,
					    0, false, 0);
		if (err)
			return err;
	}
	for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) {
		err = mlxsw_sp_port_ets_set(mlxsw_sp_port,
					    MLXSW_REG_QEEC_HIERARCY_TC, i, i,
					    false, 0);
		if (err)
			return err;
2799 2800 2801 2802 2803 2804 2805

		err = mlxsw_sp_port_ets_set(mlxsw_sp_port,
					    MLXSW_REG_QEEC_HIERARCY_TC,
					    i + 8, i,
					    false, 0);
		if (err)
			return err;
2806 2807
	}

P
Petr Machata 已提交
2808
	/* Make sure the max shaper is disabled in all hierarchies that
2809 2810 2811 2812 2813 2814 2815 2816 2817 2818 2819 2820 2821 2822 2823 2824 2825 2826 2827 2828 2829 2830
	 * support it.
	 */
	err = mlxsw_sp_port_ets_maxrate_set(mlxsw_sp_port,
					    MLXSW_REG_QEEC_HIERARCY_PORT, 0, 0,
					    MLXSW_REG_QEEC_MAS_DIS);
	if (err)
		return err;
	for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) {
		err = mlxsw_sp_port_ets_maxrate_set(mlxsw_sp_port,
						    MLXSW_REG_QEEC_HIERARCY_SUBGROUP,
						    i, 0,
						    MLXSW_REG_QEEC_MAS_DIS);
		if (err)
			return err;
	}
	for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) {
		err = mlxsw_sp_port_ets_maxrate_set(mlxsw_sp_port,
						    MLXSW_REG_QEEC_HIERARCY_TC,
						    i, i,
						    MLXSW_REG_QEEC_MAS_DIS);
		if (err)
			return err;
2831 2832 2833 2834 2835 2836 2837

		err = mlxsw_sp_port_ets_maxrate_set(mlxsw_sp_port,
						    MLXSW_REG_QEEC_HIERARCY_TC,
						    i + 8, i,
						    MLXSW_REG_QEEC_MAS_DIS);
		if (err)
			return err;
2838 2839
	}

2840 2841 2842 2843 2844 2845 2846 2847 2848 2849
	/* Configure the min shaper for multicast TCs. */
	for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) {
		err = mlxsw_sp_port_min_bw_set(mlxsw_sp_port,
					       MLXSW_REG_QEEC_HIERARCY_TC,
					       i + 8, i,
					       MLXSW_REG_QEEC_MIS_MIN);
		if (err)
			return err;
	}

2850 2851 2852 2853 2854 2855 2856 2857 2858 2859
	/* Map all priorities to traffic class 0. */
	for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) {
		err = mlxsw_sp_port_prio_tc_set(mlxsw_sp_port, i, 0);
		if (err)
			return err;
	}

	return 0;
}

2860 2861 2862 2863 2864 2865 2866 2867 2868 2869
static int mlxsw_sp_port_tc_mc_mode_set(struct mlxsw_sp_port *mlxsw_sp_port,
					bool enable)
{
	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
	char qtctm_pl[MLXSW_REG_QTCTM_LEN];

	mlxsw_reg_qtctm_pack(qtctm_pl, mlxsw_sp_port->local_port, enable);
	return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(qtctm), qtctm_pl);
}

2870 2871
static int mlxsw_sp_port_create(struct mlxsw_sp *mlxsw_sp, u8 local_port,
				bool split, u8 module, u8 width, u8 lane)
2872
{
2873
	struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan;
2874 2875 2876 2877
	struct mlxsw_sp_port *mlxsw_sp_port;
	struct net_device *dev;
	int err;

2878 2879 2880 2881 2882 2883 2884
	err = mlxsw_core_port_init(mlxsw_sp->core, local_port);
	if (err) {
		dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to init core port\n",
			local_port);
		return err;
	}

2885
	dev = alloc_etherdev(sizeof(struct mlxsw_sp_port));
2886 2887 2888 2889
	if (!dev) {
		err = -ENOMEM;
		goto err_alloc_etherdev;
	}
2890
	SET_NETDEV_DEV(dev, mlxsw_sp->bus_info->dev);
2891 2892 2893 2894
	mlxsw_sp_port = netdev_priv(dev);
	mlxsw_sp_port->dev = dev;
	mlxsw_sp_port->mlxsw_sp = mlxsw_sp;
	mlxsw_sp_port->local_port = local_port;
2895
	mlxsw_sp_port->pvid = 1;
2896
	mlxsw_sp_port->split = split;
2897 2898 2899
	mlxsw_sp_port->mapping.module = module;
	mlxsw_sp_port->mapping.width = width;
	mlxsw_sp_port->mapping.lane = lane;
2900
	mlxsw_sp_port->link.autoneg = 1;
2901
	INIT_LIST_HEAD(&mlxsw_sp_port->vlans_list);
2902
	INIT_LIST_HEAD(&mlxsw_sp_port->mall_tc_list);
2903 2904 2905 2906 2907 2908 2909 2910

	mlxsw_sp_port->pcpu_stats =
		netdev_alloc_pcpu_stats(struct mlxsw_sp_port_pcpu_stats);
	if (!mlxsw_sp_port->pcpu_stats) {
		err = -ENOMEM;
		goto err_alloc_stats;
	}

2911 2912 2913 2914 2915 2916 2917
	mlxsw_sp_port->sample = kzalloc(sizeof(*mlxsw_sp_port->sample),
					GFP_KERNEL);
	if (!mlxsw_sp_port->sample) {
		err = -ENOMEM;
		goto err_alloc_sample;
	}

2918
	INIT_DELAYED_WORK(&mlxsw_sp_port->periodic_hw_stats.update_dw,
2919 2920
			  &update_stats_cache);

2921 2922 2923
	dev->netdev_ops = &mlxsw_sp_port_netdev_ops;
	dev->ethtool_ops = &mlxsw_sp_port_ethtool_ops;

2924
	err = mlxsw_sp_port_module_map(mlxsw_sp_port, module, width, lane);
2925 2926 2927 2928 2929 2930
	if (err) {
		dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to map module\n",
			mlxsw_sp_port->local_port);
		goto err_port_module_map;
	}

2931 2932 2933 2934 2935 2936 2937
	err = mlxsw_sp_port_swid_set(mlxsw_sp_port, 0);
	if (err) {
		dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to set SWID\n",
			mlxsw_sp_port->local_port);
		goto err_port_swid_set;
	}

2938 2939 2940 2941 2942 2943 2944 2945 2946 2947
	err = mlxsw_sp_port_dev_addr_init(mlxsw_sp_port);
	if (err) {
		dev_err(mlxsw_sp->bus_info->dev, "Port %d: Unable to init port mac address\n",
			mlxsw_sp_port->local_port);
		goto err_dev_addr_init;
	}

	netif_carrier_off(dev);

	dev->features |= NETIF_F_NETNS_LOCAL | NETIF_F_LLTX | NETIF_F_SG |
2948 2949
			 NETIF_F_HW_VLAN_CTAG_FILTER | NETIF_F_HW_TC;
	dev->hw_features |= NETIF_F_HW_TC;
2950

2951 2952 2953
	dev->min_mtu = 0;
	dev->max_mtu = ETH_MAX_MTU;

2954 2955 2956
	/* Each packet needs to have a Tx header (metadata) on top all other
	 * headers.
	 */
2957
	dev->needed_headroom = MLXSW_TXHDR_LEN;
2958 2959 2960 2961 2962 2963 2964 2965

	err = mlxsw_sp_port_system_port_mapping_set(mlxsw_sp_port);
	if (err) {
		dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to set system port mapping\n",
			mlxsw_sp_port->local_port);
		goto err_port_system_port_mapping_set;
	}

2966 2967 2968 2969 2970 2971 2972
	err = mlxsw_sp_port_speed_by_width_set(mlxsw_sp_port, width);
	if (err) {
		dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to enable speeds\n",
			mlxsw_sp_port->local_port);
		goto err_port_speed_by_width_set;
	}

2973 2974 2975 2976 2977 2978 2979 2980 2981 2982 2983 2984 2985 2986 2987 2988 2989 2990
	err = mlxsw_sp_port_mtu_set(mlxsw_sp_port, ETH_DATA_LEN);
	if (err) {
		dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to set MTU\n",
			mlxsw_sp_port->local_port);
		goto err_port_mtu_set;
	}

	err = mlxsw_sp_port_admin_status_set(mlxsw_sp_port, false);
	if (err)
		goto err_port_admin_status_set;

	err = mlxsw_sp_port_buffers_init(mlxsw_sp_port);
	if (err) {
		dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to initialize buffers\n",
			mlxsw_sp_port->local_port);
		goto err_port_buffers_init;
	}

2991 2992 2993 2994 2995 2996 2997
	err = mlxsw_sp_port_ets_init(mlxsw_sp_port);
	if (err) {
		dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to initialize ETS\n",
			mlxsw_sp_port->local_port);
		goto err_port_ets_init;
	}

2998 2999 3000 3001 3002 3003 3004
	err = mlxsw_sp_port_tc_mc_mode_set(mlxsw_sp_port, true);
	if (err) {
		dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to initialize TC MC mode\n",
			mlxsw_sp_port->local_port);
		goto err_port_tc_mc_mode;
	}

3005 3006 3007 3008 3009 3010 3011 3012
	/* ETS and buffers must be initialized before DCB. */
	err = mlxsw_sp_port_dcb_init(mlxsw_sp_port);
	if (err) {
		dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to initialize DCB\n",
			mlxsw_sp_port->local_port);
		goto err_port_dcb_init;
	}

3013
	err = mlxsw_sp_port_fids_init(mlxsw_sp_port);
3014
	if (err) {
3015
		dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to initialize FIDs\n",
3016
			mlxsw_sp_port->local_port);
3017
		goto err_port_fids_init;
3018 3019
	}

3020 3021 3022 3023 3024 3025 3026
	err = mlxsw_sp_tc_qdisc_init(mlxsw_sp_port);
	if (err) {
		dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to initialize TC qdiscs\n",
			mlxsw_sp_port->local_port);
		goto err_port_qdiscs_init;
	}

3027 3028 3029 3030 3031 3032 3033
	err = mlxsw_sp_port_nve_init(mlxsw_sp_port);
	if (err) {
		dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to initialize NVE\n",
			mlxsw_sp_port->local_port);
		goto err_port_nve_init;
	}

3034 3035 3036
	mlxsw_sp_port_vlan = mlxsw_sp_port_vlan_get(mlxsw_sp_port, 1);
	if (IS_ERR(mlxsw_sp_port_vlan)) {
		dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to create VID 1\n",
3037
			mlxsw_sp_port->local_port);
3038
		err = PTR_ERR(mlxsw_sp_port_vlan);
3039
		goto err_port_vlan_get;
3040 3041
	}

3042
	mlxsw_sp_port_switchdev_init(mlxsw_sp_port);
3043
	mlxsw_sp->ports[local_port] = mlxsw_sp_port;
3044 3045 3046 3047 3048 3049 3050
	err = register_netdev(dev);
	if (err) {
		dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to register netdev\n",
			mlxsw_sp_port->local_port);
		goto err_register_netdev;
	}

3051
	mlxsw_core_port_eth_set(mlxsw_sp->core, mlxsw_sp_port->local_port,
3052 3053
				mlxsw_sp_port, dev, module + 1,
				mlxsw_sp_port->split, lane / width);
3054
	mlxsw_core_schedule_dw(&mlxsw_sp_port->periodic_hw_stats.update_dw, 0);
3055 3056 3057
	return 0;

err_register_netdev:
3058
	mlxsw_sp->ports[local_port] = NULL;
3059
	mlxsw_sp_port_switchdev_fini(mlxsw_sp_port);
3060 3061
	mlxsw_sp_port_vlan_put(mlxsw_sp_port_vlan);
err_port_vlan_get:
3062 3063
	mlxsw_sp_port_nve_fini(mlxsw_sp_port);
err_port_nve_init:
3064 3065
	mlxsw_sp_tc_qdisc_fini(mlxsw_sp_port);
err_port_qdiscs_init:
3066 3067
	mlxsw_sp_port_fids_fini(mlxsw_sp_port);
err_port_fids_init:
3068
	mlxsw_sp_port_dcb_fini(mlxsw_sp_port);
3069
err_port_dcb_init:
3070 3071
	mlxsw_sp_port_tc_mc_mode_set(mlxsw_sp_port, false);
err_port_tc_mc_mode:
3072
err_port_ets_init:
3073 3074 3075
err_port_buffers_init:
err_port_admin_status_set:
err_port_mtu_set:
3076
err_port_speed_by_width_set:
3077 3078
err_port_system_port_mapping_set:
err_dev_addr_init:
3079 3080
	mlxsw_sp_port_swid_set(mlxsw_sp_port, MLXSW_PORT_SWID_DISABLED_PORT);
err_port_swid_set:
3081
	mlxsw_sp_port_module_unmap(mlxsw_sp_port);
3082
err_port_module_map:
3083 3084
	kfree(mlxsw_sp_port->sample);
err_alloc_sample:
3085 3086 3087
	free_percpu(mlxsw_sp_port->pcpu_stats);
err_alloc_stats:
	free_netdev(dev);
3088
err_alloc_etherdev:
3089 3090 3091 3092
	mlxsw_core_port_fini(mlxsw_sp->core, local_port);
	return err;
}

3093
static void mlxsw_sp_port_remove(struct mlxsw_sp *mlxsw_sp, u8 local_port)
3094 3095 3096
{
	struct mlxsw_sp_port *mlxsw_sp_port = mlxsw_sp->ports[local_port];

3097
	cancel_delayed_work_sync(&mlxsw_sp_port->periodic_hw_stats.update_dw);
3098
	mlxsw_core_port_clear(mlxsw_sp->core, local_port, mlxsw_sp);
3099
	unregister_netdev(mlxsw_sp_port->dev); /* This calls ndo_stop */
3100
	mlxsw_sp->ports[local_port] = NULL;
3101
	mlxsw_sp_port_switchdev_fini(mlxsw_sp_port);
3102
	mlxsw_sp_port_vlan_flush(mlxsw_sp_port);
3103
	mlxsw_sp_port_nve_fini(mlxsw_sp_port);
3104
	mlxsw_sp_tc_qdisc_fini(mlxsw_sp_port);
3105
	mlxsw_sp_port_fids_fini(mlxsw_sp_port);
3106
	mlxsw_sp_port_dcb_fini(mlxsw_sp_port);
3107
	mlxsw_sp_port_tc_mc_mode_set(mlxsw_sp_port, false);
3108
	mlxsw_sp_port_swid_set(mlxsw_sp_port, MLXSW_PORT_SWID_DISABLED_PORT);
3109
	mlxsw_sp_port_module_unmap(mlxsw_sp_port);
3110
	kfree(mlxsw_sp_port->sample);
3111
	free_percpu(mlxsw_sp_port->pcpu_stats);
3112
	WARN_ON_ONCE(!list_empty(&mlxsw_sp_port->vlans_list));
3113
	free_netdev(mlxsw_sp_port->dev);
3114 3115 3116
	mlxsw_core_port_fini(mlxsw_sp->core, local_port);
}

3117 3118 3119 3120 3121
static bool mlxsw_sp_port_created(struct mlxsw_sp *mlxsw_sp, u8 local_port)
{
	return mlxsw_sp->ports[local_port] != NULL;
}

3122 3123 3124 3125
static void mlxsw_sp_ports_remove(struct mlxsw_sp *mlxsw_sp)
{
	int i;

3126
	for (i = 1; i < mlxsw_core_max_ports(mlxsw_sp->core); i++)
3127 3128
		if (mlxsw_sp_port_created(mlxsw_sp, i))
			mlxsw_sp_port_remove(mlxsw_sp, i);
3129
	kfree(mlxsw_sp->port_to_module);
3130 3131 3132 3133 3134
	kfree(mlxsw_sp->ports);
}

static int mlxsw_sp_ports_create(struct mlxsw_sp *mlxsw_sp)
{
3135
	unsigned int max_ports = mlxsw_core_max_ports(mlxsw_sp->core);
3136
	u8 module, width, lane;
3137 3138 3139 3140
	size_t alloc_size;
	int i;
	int err;

3141
	alloc_size = sizeof(struct mlxsw_sp_port *) * max_ports;
3142 3143 3144 3145
	mlxsw_sp->ports = kzalloc(alloc_size, GFP_KERNEL);
	if (!mlxsw_sp->ports)
		return -ENOMEM;

3146 3147
	mlxsw_sp->port_to_module = kmalloc_array(max_ports, sizeof(int),
						 GFP_KERNEL);
3148 3149 3150 3151 3152 3153
	if (!mlxsw_sp->port_to_module) {
		err = -ENOMEM;
		goto err_port_to_module_alloc;
	}

	for (i = 1; i < max_ports; i++) {
3154 3155 3156
		/* Mark as invalid */
		mlxsw_sp->port_to_module[i] = -1;

3157
		err = mlxsw_sp_port_module_info_get(mlxsw_sp, i, &module,
3158
						    &width, &lane);
3159 3160 3161 3162 3163
		if (err)
			goto err_port_module_info_get;
		if (!width)
			continue;
		mlxsw_sp->port_to_module[i] = module;
3164 3165
		err = mlxsw_sp_port_create(mlxsw_sp, i, false,
					   module, width, lane);
3166 3167 3168 3169 3170 3171
		if (err)
			goto err_port_create;
	}
	return 0;

err_port_create:
3172
err_port_module_info_get:
3173
	for (i--; i >= 1; i--)
3174 3175
		if (mlxsw_sp_port_created(mlxsw_sp, i))
			mlxsw_sp_port_remove(mlxsw_sp, i);
3176 3177
	kfree(mlxsw_sp->port_to_module);
err_port_to_module_alloc:
3178 3179 3180 3181
	kfree(mlxsw_sp->ports);
	return err;
}

3182 3183 3184 3185 3186 3187 3188
static u8 mlxsw_sp_cluster_base_port_get(u8 local_port)
{
	u8 offset = (local_port - 1) % MLXSW_SP_PORTS_PER_CLUSTER_MAX;

	return local_port - offset;
}

3189 3190 3191 3192 3193 3194 3195 3196
static int mlxsw_sp_port_split_create(struct mlxsw_sp *mlxsw_sp, u8 base_port,
				      u8 module, unsigned int count)
{
	u8 width = MLXSW_PORT_MODULE_MAX_WIDTH / count;
	int err, i;

	for (i = 0; i < count; i++) {
		err = mlxsw_sp_port_create(mlxsw_sp, base_port + i, true,
3197
					   module, width, i * width);
3198 3199 3200 3201 3202 3203 3204 3205
		if (err)
			goto err_port_create;
	}

	return 0;

err_port_create:
	for (i--; i >= 0; i--)
3206 3207
		if (mlxsw_sp_port_created(mlxsw_sp, base_port + i))
			mlxsw_sp_port_remove(mlxsw_sp, base_port + i);
3208 3209 3210 3211 3212 3213 3214 3215 3216 3217 3218 3219 3220 3221 3222 3223
	return err;
}

static void mlxsw_sp_port_unsplit_create(struct mlxsw_sp *mlxsw_sp,
					 u8 base_port, unsigned int count)
{
	u8 local_port, module, width = MLXSW_PORT_MODULE_MAX_WIDTH;
	int i;

	/* Split by four means we need to re-create two ports, otherwise
	 * only one.
	 */
	count = count / 2;

	for (i = 0; i < count; i++) {
		local_port = base_port + i * 2;
3224 3225
		if (mlxsw_sp->port_to_module[local_port] < 0)
			continue;
3226 3227 3228
		module = mlxsw_sp->port_to_module[local_port];

		mlxsw_sp_port_create(mlxsw_sp, local_port, false, module,
3229
				     width, 0);
3230 3231 3232
	}
}

3233
static int mlxsw_sp_port_split(struct mlxsw_core *mlxsw_core, u8 local_port,
3234 3235
			       unsigned int count,
			       struct netlink_ext_ack *extack)
3236
{
3237
	struct mlxsw_sp *mlxsw_sp = mlxsw_core_driver_priv(mlxsw_core);
3238 3239 3240 3241 3242 3243 3244 3245 3246
	struct mlxsw_sp_port *mlxsw_sp_port;
	u8 module, cur_width, base_port;
	int i;
	int err;

	mlxsw_sp_port = mlxsw_sp->ports[local_port];
	if (!mlxsw_sp_port) {
		dev_err(mlxsw_sp->bus_info->dev, "Port number \"%d\" does not exist\n",
			local_port);
3247
		NL_SET_ERR_MSG_MOD(extack, "Port number does not exist");
3248 3249 3250
		return -EINVAL;
	}

3251 3252 3253
	module = mlxsw_sp_port->mapping.module;
	cur_width = mlxsw_sp_port->mapping.width;

3254 3255
	if (count != 2 && count != 4) {
		netdev_err(mlxsw_sp_port->dev, "Port can only be split into 2 or 4 ports\n");
3256
		NL_SET_ERR_MSG_MOD(extack, "Port can only be split into 2 or 4 ports");
3257 3258 3259 3260 3261
		return -EINVAL;
	}

	if (cur_width != MLXSW_PORT_MODULE_MAX_WIDTH) {
		netdev_err(mlxsw_sp_port->dev, "Port cannot be split further\n");
3262
		NL_SET_ERR_MSG_MOD(extack, "Port cannot be split further");
3263 3264 3265 3266 3267 3268 3269 3270
		return -EINVAL;
	}

	/* Make sure we have enough slave (even) ports for the split. */
	if (count == 2) {
		base_port = local_port;
		if (mlxsw_sp->ports[base_port + 1]) {
			netdev_err(mlxsw_sp_port->dev, "Invalid split configuration\n");
3271
			NL_SET_ERR_MSG_MOD(extack, "Invalid split configuration");
3272 3273 3274 3275 3276 3277 3278
			return -EINVAL;
		}
	} else {
		base_port = mlxsw_sp_cluster_base_port_get(local_port);
		if (mlxsw_sp->ports[base_port + 1] ||
		    mlxsw_sp->ports[base_port + 3]) {
			netdev_err(mlxsw_sp_port->dev, "Invalid split configuration\n");
3279
			NL_SET_ERR_MSG_MOD(extack, "Invalid split configuration");
3280 3281 3282 3283 3284
			return -EINVAL;
		}
	}

	for (i = 0; i < count; i++)
3285 3286
		if (mlxsw_sp_port_created(mlxsw_sp, base_port + i))
			mlxsw_sp_port_remove(mlxsw_sp, base_port + i);
3287

3288 3289 3290 3291
	err = mlxsw_sp_port_split_create(mlxsw_sp, base_port, module, count);
	if (err) {
		dev_err(mlxsw_sp->bus_info->dev, "Failed to create split ports\n");
		goto err_port_split_create;
3292 3293 3294 3295
	}

	return 0;

3296 3297
err_port_split_create:
	mlxsw_sp_port_unsplit_create(mlxsw_sp, base_port, count);
3298 3299 3300
	return err;
}

3301 3302
static int mlxsw_sp_port_unsplit(struct mlxsw_core *mlxsw_core, u8 local_port,
				 struct netlink_ext_ack *extack)
3303
{
3304
	struct mlxsw_sp *mlxsw_sp = mlxsw_core_driver_priv(mlxsw_core);
3305
	struct mlxsw_sp_port *mlxsw_sp_port;
3306
	u8 cur_width, base_port;
3307 3308 3309 3310 3311 3312 3313
	unsigned int count;
	int i;

	mlxsw_sp_port = mlxsw_sp->ports[local_port];
	if (!mlxsw_sp_port) {
		dev_err(mlxsw_sp->bus_info->dev, "Port number \"%d\" does not exist\n",
			local_port);
3314
		NL_SET_ERR_MSG_MOD(extack, "Port number does not exist");
3315 3316 3317 3318
		return -EINVAL;
	}

	if (!mlxsw_sp_port->split) {
3319 3320
		netdev_err(mlxsw_sp_port->dev, "Port was not split\n");
		NL_SET_ERR_MSG_MOD(extack, "Port was not split");
3321 3322 3323
		return -EINVAL;
	}

3324
	cur_width = mlxsw_sp_port->mapping.width;
3325 3326 3327 3328 3329 3330 3331 3332 3333
	count = cur_width == 1 ? 4 : 2;

	base_port = mlxsw_sp_cluster_base_port_get(local_port);

	/* Determine which ports to remove. */
	if (count == 2 && local_port >= base_port + 2)
		base_port = base_port + 2;

	for (i = 0; i < count; i++)
3334 3335
		if (mlxsw_sp_port_created(mlxsw_sp, base_port + i))
			mlxsw_sp_port_remove(mlxsw_sp, base_port + i);
3336

3337
	mlxsw_sp_port_unsplit_create(mlxsw_sp, base_port, count);
3338 3339 3340 3341

	return 0;
}

3342 3343 3344 3345 3346 3347 3348 3349 3350 3351
static void mlxsw_sp_pude_event_func(const struct mlxsw_reg_info *reg,
				     char *pude_pl, void *priv)
{
	struct mlxsw_sp *mlxsw_sp = priv;
	struct mlxsw_sp_port *mlxsw_sp_port;
	enum mlxsw_reg_pude_oper_status status;
	u8 local_port;

	local_port = mlxsw_reg_pude_local_port_get(pude_pl);
	mlxsw_sp_port = mlxsw_sp->ports[local_port];
3352
	if (!mlxsw_sp_port)
3353 3354 3355 3356 3357 3358 3359 3360 3361 3362 3363 3364
		return;

	status = mlxsw_reg_pude_oper_status_get(pude_pl);
	if (status == MLXSW_PORT_OPER_STATUS_UP) {
		netdev_info(mlxsw_sp_port->dev, "link up\n");
		netif_carrier_on(mlxsw_sp_port->dev);
	} else {
		netdev_info(mlxsw_sp_port->dev, "link down\n");
		netif_carrier_off(mlxsw_sp_port->dev);
	}
}

3365 3366
static void mlxsw_sp_rx_listener_no_mark_func(struct sk_buff *skb,
					      u8 local_port, void *priv)
3367 3368 3369 3370 3371 3372 3373 3374 3375 3376 3377 3378 3379 3380 3381 3382 3383 3384 3385 3386 3387 3388 3389
{
	struct mlxsw_sp *mlxsw_sp = priv;
	struct mlxsw_sp_port *mlxsw_sp_port = mlxsw_sp->ports[local_port];
	struct mlxsw_sp_port_pcpu_stats *pcpu_stats;

	if (unlikely(!mlxsw_sp_port)) {
		dev_warn_ratelimited(mlxsw_sp->bus_info->dev, "Port %d: skb received for non-existent port\n",
				     local_port);
		return;
	}

	skb->dev = mlxsw_sp_port->dev;

	pcpu_stats = this_cpu_ptr(mlxsw_sp_port->pcpu_stats);
	u64_stats_update_begin(&pcpu_stats->syncp);
	pcpu_stats->rx_packets++;
	pcpu_stats->rx_bytes += skb->len;
	u64_stats_update_end(&pcpu_stats->syncp);

	skb->protocol = eth_type_trans(skb, skb->dev);
	netif_receive_skb(skb);
}

3390 3391 3392 3393
static void mlxsw_sp_rx_listener_mark_func(struct sk_buff *skb, u8 local_port,
					   void *priv)
{
	skb->offload_fwd_mark = 1;
3394
	return mlxsw_sp_rx_listener_no_mark_func(skb, local_port, priv);
3395 3396
}

3397 3398 3399 3400 3401 3402 3403 3404
static void mlxsw_sp_rx_listener_mr_mark_func(struct sk_buff *skb,
					      u8 local_port, void *priv)
{
	skb->offload_mr_fwd_mark = 1;
	skb->offload_fwd_mark = 1;
	return mlxsw_sp_rx_listener_no_mark_func(skb, local_port, priv);
}

3405 3406 3407 3408 3409 3410 3411 3412 3413 3414 3415 3416 3417 3418 3419 3420 3421 3422 3423 3424 3425 3426 3427 3428 3429 3430 3431 3432 3433 3434 3435 3436 3437 3438 3439
static void mlxsw_sp_rx_listener_sample_func(struct sk_buff *skb, u8 local_port,
					     void *priv)
{
	struct mlxsw_sp *mlxsw_sp = priv;
	struct mlxsw_sp_port *mlxsw_sp_port = mlxsw_sp->ports[local_port];
	struct psample_group *psample_group;
	u32 size;

	if (unlikely(!mlxsw_sp_port)) {
		dev_warn_ratelimited(mlxsw_sp->bus_info->dev, "Port %d: sample skb received for non-existent port\n",
				     local_port);
		goto out;
	}
	if (unlikely(!mlxsw_sp_port->sample)) {
		dev_warn_ratelimited(mlxsw_sp->bus_info->dev, "Port %d: sample skb received on unsupported port\n",
				     local_port);
		goto out;
	}

	size = mlxsw_sp_port->sample->truncate ?
		  mlxsw_sp_port->sample->trunc_size : skb->len;

	rcu_read_lock();
	psample_group = rcu_dereference(mlxsw_sp_port->sample->psample_group);
	if (!psample_group)
		goto out_unlock;
	psample_sample_packet(psample_group, skb, size,
			      mlxsw_sp_port->dev->ifindex, 0,
			      mlxsw_sp_port->sample->rate);
out_unlock:
	rcu_read_unlock();
out:
	consume_skb(skb);
}

3440
#define MLXSW_SP_RXL_NO_MARK(_trap_id, _action, _trap_group, _is_ctrl)	\
3441
	MLXSW_RXL(mlxsw_sp_rx_listener_no_mark_func, _trap_id, _action,	\
3442
		  _is_ctrl, SP_##_trap_group, DISCARD)
3443

3444
#define MLXSW_SP_RXL_MARK(_trap_id, _action, _trap_group, _is_ctrl)	\
3445
	MLXSW_RXL(mlxsw_sp_rx_listener_mark_func, _trap_id, _action,	\
3446 3447
		_is_ctrl, SP_##_trap_group, DISCARD)

3448 3449 3450 3451
#define MLXSW_SP_RXL_MR_MARK(_trap_id, _action, _trap_group, _is_ctrl)	\
	MLXSW_RXL(mlxsw_sp_rx_listener_mr_mark_func, _trap_id, _action,	\
		_is_ctrl, SP_##_trap_group, DISCARD)

3452 3453
#define MLXSW_SP_EVENTL(_func, _trap_id)		\
	MLXSW_EVENTL(_func, _trap_id, SP_EVENT)
3454

3455 3456
static const struct mlxsw_listener mlxsw_sp_listener[] = {
	/* Events */
3457
	MLXSW_SP_EVENTL(mlxsw_sp_pude_event_func, PUDE),
3458
	/* L2 traps */
3459 3460 3461 3462 3463 3464 3465 3466 3467 3468 3469
	MLXSW_SP_RXL_NO_MARK(STP, TRAP_TO_CPU, STP, true),
	MLXSW_SP_RXL_NO_MARK(LACP, TRAP_TO_CPU, LACP, true),
	MLXSW_SP_RXL_NO_MARK(LLDP, TRAP_TO_CPU, LLDP, true),
	MLXSW_SP_RXL_MARK(DHCP, MIRROR_TO_CPU, DHCP, false),
	MLXSW_SP_RXL_MARK(IGMP_QUERY, MIRROR_TO_CPU, IGMP, false),
	MLXSW_SP_RXL_NO_MARK(IGMP_V1_REPORT, TRAP_TO_CPU, IGMP, false),
	MLXSW_SP_RXL_NO_MARK(IGMP_V2_REPORT, TRAP_TO_CPU, IGMP, false),
	MLXSW_SP_RXL_NO_MARK(IGMP_V2_LEAVE, TRAP_TO_CPU, IGMP, false),
	MLXSW_SP_RXL_NO_MARK(IGMP_V3_REPORT, TRAP_TO_CPU, IGMP, false),
	MLXSW_SP_RXL_MARK(ARPBC, MIRROR_TO_CPU, ARP, false),
	MLXSW_SP_RXL_MARK(ARPUC, MIRROR_TO_CPU, ARP, false),
J
Jiri Pirko 已提交
3470
	MLXSW_SP_RXL_NO_MARK(FID_MISS, TRAP_TO_CPU, IP2ME, false),
3471 3472 3473 3474 3475 3476 3477 3478
	MLXSW_SP_RXL_MARK(IPV6_MLDV12_LISTENER_QUERY, MIRROR_TO_CPU, IPV6_MLD,
			  false),
	MLXSW_SP_RXL_NO_MARK(IPV6_MLDV1_LISTENER_REPORT, TRAP_TO_CPU, IPV6_MLD,
			     false),
	MLXSW_SP_RXL_NO_MARK(IPV6_MLDV1_LISTENER_DONE, TRAP_TO_CPU, IPV6_MLD,
			     false),
	MLXSW_SP_RXL_NO_MARK(IPV6_MLDV2_LISTENER_REPORT, TRAP_TO_CPU, IPV6_MLD,
			     false),
3479
	/* L3 traps */
3480 3481 3482 3483
	MLXSW_SP_RXL_MARK(MTUERROR, TRAP_TO_CPU, ROUTER_EXP, false),
	MLXSW_SP_RXL_MARK(TTLERROR, TRAP_TO_CPU, ROUTER_EXP, false),
	MLXSW_SP_RXL_MARK(LBERROR, TRAP_TO_CPU, ROUTER_EXP, false),
	MLXSW_SP_RXL_MARK(IP2ME, TRAP_TO_CPU, IP2ME, false),
3484 3485 3486 3487 3488 3489 3490 3491 3492 3493
	MLXSW_SP_RXL_MARK(IPV6_UNSPECIFIED_ADDRESS, TRAP_TO_CPU, ROUTER_EXP,
			  false),
	MLXSW_SP_RXL_MARK(IPV6_LINK_LOCAL_DEST, TRAP_TO_CPU, ROUTER_EXP, false),
	MLXSW_SP_RXL_MARK(IPV6_LINK_LOCAL_SRC, TRAP_TO_CPU, ROUTER_EXP, false),
	MLXSW_SP_RXL_MARK(IPV6_ALL_NODES_LINK, TRAP_TO_CPU, ROUTER_EXP, false),
	MLXSW_SP_RXL_MARK(IPV6_ALL_ROUTERS_LINK, TRAP_TO_CPU, ROUTER_EXP,
			  false),
	MLXSW_SP_RXL_MARK(IPV4_OSPF, TRAP_TO_CPU, OSPF, false),
	MLXSW_SP_RXL_MARK(IPV6_OSPF, TRAP_TO_CPU, OSPF, false),
	MLXSW_SP_RXL_MARK(IPV6_DHCP, TRAP_TO_CPU, DHCP, false),
3494
	MLXSW_SP_RXL_MARK(RTR_INGRESS0, TRAP_TO_CPU, REMOTE_ROUTE, false),
3495 3496 3497 3498 3499 3500 3501 3502 3503 3504 3505 3506 3507 3508 3509
	MLXSW_SP_RXL_MARK(IPV4_BGP, TRAP_TO_CPU, BGP, false),
	MLXSW_SP_RXL_MARK(IPV6_BGP, TRAP_TO_CPU, BGP, false),
	MLXSW_SP_RXL_MARK(L3_IPV6_ROUTER_SOLICITATION, TRAP_TO_CPU, IPV6_ND,
			  false),
	MLXSW_SP_RXL_MARK(L3_IPV6_ROUTER_ADVERTISMENT, TRAP_TO_CPU, IPV6_ND,
			  false),
	MLXSW_SP_RXL_MARK(L3_IPV6_NEIGHBOR_SOLICITATION, TRAP_TO_CPU, IPV6_ND,
			  false),
	MLXSW_SP_RXL_MARK(L3_IPV6_NEIGHBOR_ADVERTISMENT, TRAP_TO_CPU, IPV6_ND,
			  false),
	MLXSW_SP_RXL_MARK(L3_IPV6_REDIRECTION, TRAP_TO_CPU, IPV6_ND, false),
	MLXSW_SP_RXL_MARK(IPV6_MC_LINK_LOCAL_DEST, TRAP_TO_CPU, ROUTER_EXP,
			  false),
	MLXSW_SP_RXL_MARK(HOST_MISS_IPV4, TRAP_TO_CPU, HOST_MISS, false),
	MLXSW_SP_RXL_MARK(HOST_MISS_IPV6, TRAP_TO_CPU, HOST_MISS, false),
3510
	MLXSW_SP_RXL_MARK(ROUTER_ALERT_IPV4, TRAP_TO_CPU, ROUTER_EXP, false),
3511
	MLXSW_SP_RXL_MARK(ROUTER_ALERT_IPV6, TRAP_TO_CPU, ROUTER_EXP, false),
3512
	MLXSW_SP_RXL_MARK(IPIP_DECAP_ERROR, TRAP_TO_CPU, ROUTER_EXP, false),
3513
	MLXSW_SP_RXL_MARK(DECAP_ECN0, TRAP_TO_CPU, ROUTER_EXP, false),
I
Ido Schimmel 已提交
3514 3515
	MLXSW_SP_RXL_MARK(IPV4_VRRP, TRAP_TO_CPU, ROUTER_EXP, false),
	MLXSW_SP_RXL_MARK(IPV6_VRRP, TRAP_TO_CPU, ROUTER_EXP, false),
3516 3517
	/* PKT Sample trap */
	MLXSW_RXL(mlxsw_sp_rx_listener_sample_func, PKT_SAMPLE, MIRROR_TO_CPU,
J
Jiri Pirko 已提交
3518 3519 3520
		  false, SP_IP2ME, DISCARD),
	/* ACL trap */
	MLXSW_SP_RXL_NO_MARK(ACL0, TRAP_TO_CPU, IP2ME, false),
3521 3522
	/* Multicast Router Traps */
	MLXSW_SP_RXL_MARK(IPV4_PIM, TRAP_TO_CPU, PIM, false),
3523
	MLXSW_SP_RXL_MARK(IPV6_PIM, TRAP_TO_CPU, PIM, false),
3524 3525
	MLXSW_SP_RXL_MARK(RPF, TRAP_TO_CPU, RPF, false),
	MLXSW_SP_RXL_MARK(ACL1, TRAP_TO_CPU, MULTICAST, false),
3526
	MLXSW_SP_RXL_MR_MARK(ACL2, TRAP_TO_CPU, MULTICAST, false),
3527 3528
	/* NVE traps */
	MLXSW_SP_RXL_MARK(NVE_ENCAP_ARP, TRAP_TO_CPU, ARP, false),
3529 3530
};

3531 3532 3533 3534 3535 3536 3537 3538 3539 3540 3541 3542 3543 3544 3545 3546 3547 3548 3549 3550 3551 3552 3553
static int mlxsw_sp_cpu_policers_set(struct mlxsw_core *mlxsw_core)
{
	char qpcr_pl[MLXSW_REG_QPCR_LEN];
	enum mlxsw_reg_qpcr_ir_units ir_units;
	int max_cpu_policers;
	bool is_bytes;
	u8 burst_size;
	u32 rate;
	int i, err;

	if (!MLXSW_CORE_RES_VALID(mlxsw_core, MAX_CPU_POLICERS))
		return -EIO;

	max_cpu_policers = MLXSW_CORE_RES_GET(mlxsw_core, MAX_CPU_POLICERS);

	ir_units = MLXSW_REG_QPCR_IR_UNITS_M;
	for (i = 0; i < max_cpu_policers; i++) {
		is_bytes = false;
		switch (i) {
		case MLXSW_REG_HTGT_TRAP_GROUP_SP_STP:
		case MLXSW_REG_HTGT_TRAP_GROUP_SP_LACP:
		case MLXSW_REG_HTGT_TRAP_GROUP_SP_LLDP:
		case MLXSW_REG_HTGT_TRAP_GROUP_SP_OSPF:
3554 3555
		case MLXSW_REG_HTGT_TRAP_GROUP_SP_PIM:
		case MLXSW_REG_HTGT_TRAP_GROUP_SP_RPF:
3556 3557 3558 3559
			rate = 128;
			burst_size = 7;
			break;
		case MLXSW_REG_HTGT_TRAP_GROUP_SP_IGMP:
3560
		case MLXSW_REG_HTGT_TRAP_GROUP_SP_IPV6_MLD:
3561 3562 3563
			rate = 16 * 1024;
			burst_size = 10;
			break;
3564
		case MLXSW_REG_HTGT_TRAP_GROUP_SP_BGP:
3565 3566
		case MLXSW_REG_HTGT_TRAP_GROUP_SP_ARP:
		case MLXSW_REG_HTGT_TRAP_GROUP_SP_DHCP:
3567
		case MLXSW_REG_HTGT_TRAP_GROUP_SP_HOST_MISS:
3568 3569
		case MLXSW_REG_HTGT_TRAP_GROUP_SP_ROUTER_EXP:
		case MLXSW_REG_HTGT_TRAP_GROUP_SP_REMOTE_ROUTE:
3570
		case MLXSW_REG_HTGT_TRAP_GROUP_SP_IPV6_ND:
3571
		case MLXSW_REG_HTGT_TRAP_GROUP_SP_MULTICAST:
3572 3573 3574 3575 3576 3577 3578 3579 3580 3581 3582 3583 3584 3585 3586 3587 3588 3589 3590 3591 3592
			rate = 1024;
			burst_size = 7;
			break;
		case MLXSW_REG_HTGT_TRAP_GROUP_SP_IP2ME:
			rate = 4 * 1024;
			burst_size = 4;
			break;
		default:
			continue;
		}

		mlxsw_reg_qpcr_pack(qpcr_pl, i, ir_units, is_bytes, rate,
				    burst_size);
		err = mlxsw_reg_write(mlxsw_core, MLXSW_REG(qpcr), qpcr_pl);
		if (err)
			return err;
	}

	return 0;
}

N
Nogah Frankel 已提交
3593
static int mlxsw_sp_trap_groups_set(struct mlxsw_core *mlxsw_core)
3594 3595
{
	char htgt_pl[MLXSW_REG_HTGT_LEN];
3596
	enum mlxsw_reg_htgt_trap_group i;
3597
	int max_cpu_policers;
N
Nogah Frankel 已提交
3598 3599
	int max_trap_groups;
	u8 priority, tc;
3600
	u16 policer_id;
3601
	int err;
N
Nogah Frankel 已提交
3602 3603 3604 3605 3606

	if (!MLXSW_CORE_RES_VALID(mlxsw_core, MAX_TRAP_GROUPS))
		return -EIO;

	max_trap_groups = MLXSW_CORE_RES_GET(mlxsw_core, MAX_TRAP_GROUPS);
3607
	max_cpu_policers = MLXSW_CORE_RES_GET(mlxsw_core, MAX_CPU_POLICERS);
N
Nogah Frankel 已提交
3608 3609

	for (i = 0; i < max_trap_groups; i++) {
3610
		policer_id = i;
N
Nogah Frankel 已提交
3611
		switch (i) {
3612 3613 3614 3615
		case MLXSW_REG_HTGT_TRAP_GROUP_SP_STP:
		case MLXSW_REG_HTGT_TRAP_GROUP_SP_LACP:
		case MLXSW_REG_HTGT_TRAP_GROUP_SP_LLDP:
		case MLXSW_REG_HTGT_TRAP_GROUP_SP_OSPF:
3616
		case MLXSW_REG_HTGT_TRAP_GROUP_SP_PIM:
3617 3618 3619
			priority = 5;
			tc = 5;
			break;
3620
		case MLXSW_REG_HTGT_TRAP_GROUP_SP_BGP:
3621 3622 3623 3624 3625 3626
		case MLXSW_REG_HTGT_TRAP_GROUP_SP_DHCP:
			priority = 4;
			tc = 4;
			break;
		case MLXSW_REG_HTGT_TRAP_GROUP_SP_IGMP:
		case MLXSW_REG_HTGT_TRAP_GROUP_SP_IP2ME:
3627
		case MLXSW_REG_HTGT_TRAP_GROUP_SP_IPV6_MLD:
3628 3629 3630 3631
			priority = 3;
			tc = 3;
			break;
		case MLXSW_REG_HTGT_TRAP_GROUP_SP_ARP:
3632
		case MLXSW_REG_HTGT_TRAP_GROUP_SP_IPV6_ND:
3633
		case MLXSW_REG_HTGT_TRAP_GROUP_SP_RPF:
3634 3635 3636
			priority = 2;
			tc = 2;
			break;
3637
		case MLXSW_REG_HTGT_TRAP_GROUP_SP_HOST_MISS:
3638 3639
		case MLXSW_REG_HTGT_TRAP_GROUP_SP_ROUTER_EXP:
		case MLXSW_REG_HTGT_TRAP_GROUP_SP_REMOTE_ROUTE:
3640
		case MLXSW_REG_HTGT_TRAP_GROUP_SP_MULTICAST:
3641 3642 3643 3644
			priority = 1;
			tc = 1;
			break;
		case MLXSW_REG_HTGT_TRAP_GROUP_SP_EVENT:
N
Nogah Frankel 已提交
3645 3646
			priority = MLXSW_REG_HTGT_DEFAULT_PRIORITY;
			tc = MLXSW_REG_HTGT_DEFAULT_TC;
3647
			policer_id = MLXSW_REG_HTGT_INVALID_POLICER;
N
Nogah Frankel 已提交
3648 3649 3650 3651
			break;
		default:
			continue;
		}
3652

3653 3654 3655 3656 3657
		if (max_cpu_policers <= policer_id &&
		    policer_id != MLXSW_REG_HTGT_INVALID_POLICER)
			return -EIO;

		mlxsw_reg_htgt_pack(htgt_pl, i, policer_id, priority, tc);
N
Nogah Frankel 已提交
3658 3659 3660 3661 3662 3663 3664 3665 3666 3667
		err = mlxsw_reg_write(mlxsw_core, MLXSW_REG(htgt), htgt_pl);
		if (err)
			return err;
	}

	return 0;
}

static int mlxsw_sp_traps_init(struct mlxsw_sp *mlxsw_sp)
{
3668 3669 3670
	int i;
	int err;

3671 3672 3673 3674
	err = mlxsw_sp_cpu_policers_set(mlxsw_sp->core);
	if (err)
		return err;

N
Nogah Frankel 已提交
3675
	err = mlxsw_sp_trap_groups_set(mlxsw_sp->core);
3676 3677 3678
	if (err)
		return err;

3679
	for (i = 0; i < ARRAY_SIZE(mlxsw_sp_listener); i++) {
3680
		err = mlxsw_core_trap_register(mlxsw_sp->core,
3681
					       &mlxsw_sp_listener[i],
3682
					       mlxsw_sp);
3683
		if (err)
3684
			goto err_listener_register;
3685 3686 3687 3688

	}
	return 0;

3689
err_listener_register:
3690
	for (i--; i >= 0; i--) {
3691
		mlxsw_core_trap_unregister(mlxsw_sp->core,
3692
					   &mlxsw_sp_listener[i],
3693
					   mlxsw_sp);
3694 3695 3696 3697 3698 3699 3700 3701
	}
	return err;
}

static void mlxsw_sp_traps_fini(struct mlxsw_sp *mlxsw_sp)
{
	int i;

3702
	for (i = 0; i < ARRAY_SIZE(mlxsw_sp_listener); i++) {
3703
		mlxsw_core_trap_unregister(mlxsw_sp->core,
3704
					   &mlxsw_sp_listener[i],
3705
					   mlxsw_sp);
3706 3707 3708
	}
}

3709 3710 3711
static int mlxsw_sp_lag_init(struct mlxsw_sp *mlxsw_sp)
{
	char slcr_pl[MLXSW_REG_SLCR_LEN];
3712
	u32 seed;
3713
	int err;
3714

3715
	get_random_bytes(&seed, sizeof(seed));
3716 3717 3718 3719 3720 3721 3722 3723
	mlxsw_reg_slcr_pack(slcr_pl, MLXSW_REG_SLCR_LAG_HASH_SMAC |
				     MLXSW_REG_SLCR_LAG_HASH_DMAC |
				     MLXSW_REG_SLCR_LAG_HASH_ETHERTYPE |
				     MLXSW_REG_SLCR_LAG_HASH_VLANID |
				     MLXSW_REG_SLCR_LAG_HASH_SIP |
				     MLXSW_REG_SLCR_LAG_HASH_DIP |
				     MLXSW_REG_SLCR_LAG_HASH_SPORT |
				     MLXSW_REG_SLCR_LAG_HASH_DPORT |
3724
				     MLXSW_REG_SLCR_LAG_HASH_IPPROTO, seed);
3725 3726 3727 3728
	err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(slcr), slcr_pl);
	if (err)
		return err;

J
Jiri Pirko 已提交
3729 3730
	if (!MLXSW_CORE_RES_VALID(mlxsw_sp->core, MAX_LAG) ||
	    !MLXSW_CORE_RES_VALID(mlxsw_sp->core, MAX_LAG_MEMBERS))
3731 3732
		return -EIO;

J
Jiri Pirko 已提交
3733
	mlxsw_sp->lags = kcalloc(MLXSW_CORE_RES_GET(mlxsw_sp->core, MAX_LAG),
3734 3735 3736 3737 3738 3739 3740 3741 3742 3743 3744
				 sizeof(struct mlxsw_sp_upper),
				 GFP_KERNEL);
	if (!mlxsw_sp->lags)
		return -ENOMEM;

	return 0;
}

static void mlxsw_sp_lag_fini(struct mlxsw_sp *mlxsw_sp)
{
	kfree(mlxsw_sp->lags);
3745 3746
}

3747 3748 3749 3750
static int mlxsw_sp_basic_trap_groups_set(struct mlxsw_core *mlxsw_core)
{
	char htgt_pl[MLXSW_REG_HTGT_LEN];

N
Nogah Frankel 已提交
3751 3752 3753 3754
	mlxsw_reg_htgt_pack(htgt_pl, MLXSW_REG_HTGT_TRAP_GROUP_EMAD,
			    MLXSW_REG_HTGT_INVALID_POLICER,
			    MLXSW_REG_HTGT_DEFAULT_PRIORITY,
			    MLXSW_REG_HTGT_DEFAULT_TC);
3755 3756 3757
	return mlxsw_reg_write(mlxsw_core, MLXSW_REG(htgt), htgt_pl);
}

3758 3759 3760
static int mlxsw_sp_netdevice_event(struct notifier_block *unused,
				    unsigned long event, void *ptr);

3761
static int mlxsw_sp_init(struct mlxsw_core *mlxsw_core,
3762 3763
			 const struct mlxsw_bus_info *mlxsw_bus_info)
{
3764
	struct mlxsw_sp *mlxsw_sp = mlxsw_core_driver_priv(mlxsw_core);
3765 3766 3767 3768 3769
	int err;

	mlxsw_sp->core = mlxsw_core;
	mlxsw_sp->bus_info = mlxsw_bus_info;

3770
	err = mlxsw_sp_fw_rev_validate(mlxsw_sp);
3771
	if (err)
3772 3773
		return err;

3774 3775 3776 3777 3778 3779
	err = mlxsw_sp_base_mac_get(mlxsw_sp);
	if (err) {
		dev_err(mlxsw_sp->bus_info->dev, "Failed to get base mac\n");
		return err;
	}

3780 3781 3782 3783 3784 3785
	err = mlxsw_sp_kvdl_init(mlxsw_sp);
	if (err) {
		dev_err(mlxsw_sp->bus_info->dev, "Failed to initialize KVDL\n");
		return err;
	}

3786
	err = mlxsw_sp_fids_init(mlxsw_sp);
3787
	if (err) {
3788
		dev_err(mlxsw_sp->bus_info->dev, "Failed to initialize FIDs\n");
3789
		goto err_fids_init;
3790 3791
	}

3792
	err = mlxsw_sp_traps_init(mlxsw_sp);
3793
	if (err) {
3794 3795
		dev_err(mlxsw_sp->bus_info->dev, "Failed to set traps\n");
		goto err_traps_init;
3796 3797 3798 3799 3800 3801 3802 3803
	}

	err = mlxsw_sp_buffers_init(mlxsw_sp);
	if (err) {
		dev_err(mlxsw_sp->bus_info->dev, "Failed to initialize buffers\n");
		goto err_buffers_init;
	}

3804 3805 3806 3807 3808 3809
	err = mlxsw_sp_lag_init(mlxsw_sp);
	if (err) {
		dev_err(mlxsw_sp->bus_info->dev, "Failed to initialize LAG\n");
		goto err_lag_init;
	}

3810 3811 3812 3813 3814 3815 3816 3817 3818
	/* Initialize SPAN before router and switchdev, so that those components
	 * can call mlxsw_sp_span_respin().
	 */
	err = mlxsw_sp_span_init(mlxsw_sp);
	if (err) {
		dev_err(mlxsw_sp->bus_info->dev, "Failed to init span system\n");
		goto err_span_init;
	}

3819 3820 3821 3822 3823 3824
	err = mlxsw_sp_switchdev_init(mlxsw_sp);
	if (err) {
		dev_err(mlxsw_sp->bus_info->dev, "Failed to initialize switchdev\n");
		goto err_switchdev_init;
	}

Y
Yotam Gigi 已提交
3825 3826 3827 3828 3829 3830
	err = mlxsw_sp_counter_pool_init(mlxsw_sp);
	if (err) {
		dev_err(mlxsw_sp->bus_info->dev, "Failed to init counter pool\n");
		goto err_counter_pool_init;
	}

3831 3832 3833 3834 3835 3836
	err = mlxsw_sp_afa_init(mlxsw_sp);
	if (err) {
		dev_err(mlxsw_sp->bus_info->dev, "Failed to initialize ACL actions\n");
		goto err_afa_init;
	}

3837 3838 3839 3840 3841 3842
	err = mlxsw_sp_nve_init(mlxsw_sp);
	if (err) {
		dev_err(mlxsw_sp->bus_info->dev, "Failed to initialize NVE\n");
		goto err_nve_init;
	}

3843 3844 3845 3846 3847 3848
	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;
	}

3849 3850 3851
	/* Initialize netdevice notifier after router and SPAN is initialized,
	 * so that the event handler can use router structures and call SPAN
	 * respin.
3852 3853 3854 3855 3856 3857 3858 3859
	 */
	mlxsw_sp->netdevice_nb.notifier_call = mlxsw_sp_netdevice_event;
	err = register_netdevice_notifier(&mlxsw_sp->netdevice_nb);
	if (err) {
		dev_err(mlxsw_sp->bus_info->dev, "Failed to register netdev notifier\n");
		goto err_netdev_notifier;
	}

3860 3861 3862 3863 3864 3865
	err = mlxsw_sp_acl_init(mlxsw_sp);
	if (err) {
		dev_err(mlxsw_sp->bus_info->dev, "Failed to initialize ACL\n");
		goto err_acl_init;
	}

3866 3867 3868 3869 3870 3871
	err = mlxsw_sp_dpipe_init(mlxsw_sp);
	if (err) {
		dev_err(mlxsw_sp->bus_info->dev, "Failed to init pipeline debug\n");
		goto err_dpipe_init;
	}

3872 3873 3874 3875 3876 3877
	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;
	}

3878 3879
	return 0;

3880
err_ports_create:
3881 3882
	mlxsw_sp_dpipe_fini(mlxsw_sp);
err_dpipe_init:
3883 3884
	mlxsw_sp_acl_fini(mlxsw_sp);
err_acl_init:
3885 3886
	unregister_netdevice_notifier(&mlxsw_sp->netdevice_nb);
err_netdev_notifier:
3887 3888
	mlxsw_sp_router_fini(mlxsw_sp);
err_router_init:
3889 3890
	mlxsw_sp_nve_fini(mlxsw_sp);
err_nve_init:
3891 3892
	mlxsw_sp_afa_fini(mlxsw_sp);
err_afa_init:
Y
Yotam Gigi 已提交
3893 3894
	mlxsw_sp_counter_pool_fini(mlxsw_sp);
err_counter_pool_init:
3895
	mlxsw_sp_switchdev_fini(mlxsw_sp);
3896
err_switchdev_init:
3897 3898
	mlxsw_sp_span_fini(mlxsw_sp);
err_span_init:
3899
	mlxsw_sp_lag_fini(mlxsw_sp);
3900
err_lag_init:
3901
	mlxsw_sp_buffers_fini(mlxsw_sp);
3902 3903
err_buffers_init:
	mlxsw_sp_traps_fini(mlxsw_sp);
3904 3905
err_traps_init:
	mlxsw_sp_fids_fini(mlxsw_sp);
3906 3907
err_fids_init:
	mlxsw_sp_kvdl_fini(mlxsw_sp);
3908 3909 3910
	return err;
}

3911 3912 3913 3914 3915 3916 3917 3918 3919 3920 3921 3922
static int mlxsw_sp1_init(struct mlxsw_core *mlxsw_core,
			  const struct mlxsw_bus_info *mlxsw_bus_info)
{
	struct mlxsw_sp *mlxsw_sp = mlxsw_core_driver_priv(mlxsw_core);

	mlxsw_sp->req_rev = &mlxsw_sp1_fw_rev;
	mlxsw_sp->fw_filename = MLXSW_SP1_FW_FILENAME;
	mlxsw_sp->kvdl_ops = &mlxsw_sp1_kvdl_ops;
	mlxsw_sp->afa_ops = &mlxsw_sp1_act_afa_ops;
	mlxsw_sp->afk_ops = &mlxsw_sp1_afk_ops;
	mlxsw_sp->mr_tcam_ops = &mlxsw_sp1_mr_tcam_ops;
	mlxsw_sp->acl_tcam_ops = &mlxsw_sp1_acl_tcam_ops;
3923
	mlxsw_sp->nve_ops_arr = mlxsw_sp1_nve_ops_arr;
3924 3925 3926 3927 3928 3929 3930 3931 3932 3933 3934 3935 3936 3937

	return mlxsw_sp_init(mlxsw_core, mlxsw_bus_info);
}

static int mlxsw_sp2_init(struct mlxsw_core *mlxsw_core,
			  const struct mlxsw_bus_info *mlxsw_bus_info)
{
	struct mlxsw_sp *mlxsw_sp = mlxsw_core_driver_priv(mlxsw_core);

	mlxsw_sp->kvdl_ops = &mlxsw_sp2_kvdl_ops;
	mlxsw_sp->afa_ops = &mlxsw_sp2_act_afa_ops;
	mlxsw_sp->afk_ops = &mlxsw_sp2_afk_ops;
	mlxsw_sp->mr_tcam_ops = &mlxsw_sp2_mr_tcam_ops;
	mlxsw_sp->acl_tcam_ops = &mlxsw_sp2_acl_tcam_ops;
3938
	mlxsw_sp->nve_ops_arr = mlxsw_sp2_nve_ops_arr;
3939 3940 3941 3942

	return mlxsw_sp_init(mlxsw_core, mlxsw_bus_info);
}

3943
static void mlxsw_sp_fini(struct mlxsw_core *mlxsw_core)
3944
{
3945
	struct mlxsw_sp *mlxsw_sp = mlxsw_core_driver_priv(mlxsw_core);
3946

3947
	mlxsw_sp_ports_remove(mlxsw_sp);
3948
	mlxsw_sp_dpipe_fini(mlxsw_sp);
3949
	mlxsw_sp_acl_fini(mlxsw_sp);
3950
	unregister_netdevice_notifier(&mlxsw_sp->netdevice_nb);
3951
	mlxsw_sp_router_fini(mlxsw_sp);
3952
	mlxsw_sp_nve_fini(mlxsw_sp);
3953
	mlxsw_sp_afa_fini(mlxsw_sp);
Y
Yotam Gigi 已提交
3954
	mlxsw_sp_counter_pool_fini(mlxsw_sp);
3955
	mlxsw_sp_switchdev_fini(mlxsw_sp);
3956
	mlxsw_sp_span_fini(mlxsw_sp);
3957
	mlxsw_sp_lag_fini(mlxsw_sp);
3958
	mlxsw_sp_buffers_fini(mlxsw_sp);
3959
	mlxsw_sp_traps_fini(mlxsw_sp);
3960
	mlxsw_sp_fids_fini(mlxsw_sp);
3961
	mlxsw_sp_kvdl_fini(mlxsw_sp);
3962 3963
}

3964
static const struct mlxsw_config_profile mlxsw_sp1_config_profile = {
3965
	.used_max_mid			= 1,
3966
	.max_mid			= MLXSW_SP_MID_MAX,
3967 3968 3969
	.used_flood_tables		= 1,
	.used_flood_mode		= 1,
	.flood_mode			= 3,
3970
	.max_fid_offset_flood_tables	= 3,
3971
	.fid_offset_flood_table_size	= VLAN_N_VID - 1,
3972
	.max_fid_flood_tables		= 3,
3973
	.fid_flood_table_size		= MLXSW_SP_FID_8021D_MAX,
3974 3975 3976 3977
	.used_max_ib_mc			= 1,
	.max_ib_mc			= 0,
	.used_max_pkey			= 1,
	.max_pkey			= 0,
3978
	.used_kvd_sizes			= 1,
3979 3980
	.kvd_hash_single_parts		= 59,
	.kvd_hash_double_parts		= 41,
3981
	.kvd_linear_size		= MLXSW_SP_KVD_LINEAR_SIZE,
3982 3983 3984 3985 3986 3987 3988 3989
	.swid_config			= {
		{
			.used_type	= 1,
			.type		= MLXSW_PORT_SWID_TYPE_ETH,
		}
	},
};

3990 3991 3992 3993 3994 3995 3996 3997 3998 3999 4000 4001 4002 4003 4004 4005 4006 4007 4008 4009 4010 4011
static const struct mlxsw_config_profile mlxsw_sp2_config_profile = {
	.used_max_mid			= 1,
	.max_mid			= MLXSW_SP_MID_MAX,
	.used_flood_tables		= 1,
	.used_flood_mode		= 1,
	.flood_mode			= 3,
	.max_fid_offset_flood_tables	= 3,
	.fid_offset_flood_table_size	= VLAN_N_VID - 1,
	.max_fid_flood_tables		= 3,
	.fid_flood_table_size		= MLXSW_SP_FID_8021D_MAX,
	.used_max_ib_mc			= 1,
	.max_ib_mc			= 0,
	.used_max_pkey			= 1,
	.max_pkey			= 0,
	.swid_config			= {
		{
			.used_type	= 1,
			.type		= MLXSW_PORT_SWID_TYPE_ETH,
		}
	},
};

4012
static void
4013 4014 4015 4016 4017
mlxsw_sp_resource_size_params_prepare(struct mlxsw_core *mlxsw_core,
				      struct devlink_resource_size_params *kvd_size_params,
				      struct devlink_resource_size_params *linear_size_params,
				      struct devlink_resource_size_params *hash_double_size_params,
				      struct devlink_resource_size_params *hash_single_size_params)
4018 4019 4020 4021 4022 4023 4024 4025
{
	u32 single_size_min = MLXSW_CORE_RES_GET(mlxsw_core,
						 KVD_SINGLE_MIN_SIZE);
	u32 double_size_min = MLXSW_CORE_RES_GET(mlxsw_core,
						 KVD_DOUBLE_MIN_SIZE);
	u32 kvd_size = MLXSW_CORE_RES_GET(mlxsw_core, KVD_SIZE);
	u32 linear_size_min = 0;

4026 4027 4028 4029 4030 4031 4032 4033 4034 4035 4036 4037 4038 4039 4040 4041 4042 4043 4044 4045
	devlink_resource_size_params_init(kvd_size_params, kvd_size, kvd_size,
					  MLXSW_SP_KVD_GRANULARITY,
					  DEVLINK_RESOURCE_UNIT_ENTRY);
	devlink_resource_size_params_init(linear_size_params, linear_size_min,
					  kvd_size - single_size_min -
					  double_size_min,
					  MLXSW_SP_KVD_GRANULARITY,
					  DEVLINK_RESOURCE_UNIT_ENTRY);
	devlink_resource_size_params_init(hash_double_size_params,
					  double_size_min,
					  kvd_size - single_size_min -
					  linear_size_min,
					  MLXSW_SP_KVD_GRANULARITY,
					  DEVLINK_RESOURCE_UNIT_ENTRY);
	devlink_resource_size_params_init(hash_single_size_params,
					  single_size_min,
					  kvd_size - double_size_min -
					  linear_size_min,
					  MLXSW_SP_KVD_GRANULARITY,
					  DEVLINK_RESOURCE_UNIT_ENTRY);
4046 4047
}

4048
static int mlxsw_sp1_resources_kvd_register(struct mlxsw_core *mlxsw_core)
4049 4050
{
	struct devlink *devlink = priv_to_devlink(mlxsw_core);
4051 4052 4053 4054
	struct devlink_resource_size_params hash_single_size_params;
	struct devlink_resource_size_params hash_double_size_params;
	struct devlink_resource_size_params linear_size_params;
	struct devlink_resource_size_params kvd_size_params;
4055 4056 4057 4058
	u32 kvd_size, single_size, double_size, linear_size;
	const struct mlxsw_config_profile *profile;
	int err;

4059
	profile = &mlxsw_sp1_config_profile;
4060 4061 4062
	if (!MLXSW_CORE_RES_VALID(mlxsw_core, KVD_SIZE))
		return -EIO;

4063 4064 4065 4066 4067
	mlxsw_sp_resource_size_params_prepare(mlxsw_core, &kvd_size_params,
					      &linear_size_params,
					      &hash_double_size_params,
					      &hash_single_size_params);

4068 4069
	kvd_size = MLXSW_CORE_RES_GET(mlxsw_core, KVD_SIZE);
	err = devlink_resource_register(devlink, MLXSW_SP_RESOURCE_NAME_KVD,
4070
					kvd_size, MLXSW_SP_RESOURCE_KVD,
4071
					DEVLINK_RESOURCE_ID_PARENT_TOP,
4072
					&kvd_size_params);
4073 4074 4075 4076 4077
	if (err)
		return err;

	linear_size = profile->kvd_linear_size;
	err = devlink_resource_register(devlink, MLXSW_SP_RESOURCE_NAME_KVD_LINEAR,
4078
					linear_size,
4079 4080
					MLXSW_SP_RESOURCE_KVD_LINEAR,
					MLXSW_SP_RESOURCE_KVD,
4081
					&linear_size_params);
4082 4083 4084
	if (err)
		return err;

4085
	err = mlxsw_sp1_kvdl_resources_register(mlxsw_core);
4086 4087 4088
	if  (err)
		return err;

4089 4090 4091 4092
	double_size = kvd_size - linear_size;
	double_size *= profile->kvd_hash_double_parts;
	double_size /= profile->kvd_hash_double_parts +
		       profile->kvd_hash_single_parts;
4093
	double_size = rounddown(double_size, MLXSW_SP_KVD_GRANULARITY);
4094
	err = devlink_resource_register(devlink, MLXSW_SP_RESOURCE_NAME_KVD_HASH_DOUBLE,
4095
					double_size,
4096 4097
					MLXSW_SP_RESOURCE_KVD_HASH_DOUBLE,
					MLXSW_SP_RESOURCE_KVD,
4098
					&hash_double_size_params);
4099 4100 4101 4102 4103
	if (err)
		return err;

	single_size = kvd_size - double_size - linear_size;
	err = devlink_resource_register(devlink, MLXSW_SP_RESOURCE_NAME_KVD_HASH_SINGLE,
4104
					single_size,
4105 4106
					MLXSW_SP_RESOURCE_KVD_HASH_SINGLE,
					MLXSW_SP_RESOURCE_KVD,
4107
					&hash_single_size_params);
4108 4109 4110 4111 4112 4113
	if (err)
		return err;

	return 0;
}

4114 4115 4116 4117 4118 4119 4120 4121 4122 4123
static int mlxsw_sp1_resources_register(struct mlxsw_core *mlxsw_core)
{
	return mlxsw_sp1_resources_kvd_register(mlxsw_core);
}

static int mlxsw_sp2_resources_register(struct mlxsw_core *mlxsw_core)
{
	return 0;
}

4124 4125 4126 4127 4128 4129 4130 4131 4132 4133
static int mlxsw_sp_kvd_sizes_get(struct mlxsw_core *mlxsw_core,
				  const struct mlxsw_config_profile *profile,
				  u64 *p_single_size, u64 *p_double_size,
				  u64 *p_linear_size)
{
	struct devlink *devlink = priv_to_devlink(mlxsw_core);
	u32 double_size;
	int err;

	if (!MLXSW_CORE_RES_VALID(mlxsw_core, KVD_SINGLE_MIN_SIZE) ||
4134
	    !MLXSW_CORE_RES_VALID(mlxsw_core, KVD_DOUBLE_MIN_SIZE))
4135 4136 4137 4138 4139 4140 4141 4142 4143 4144 4145 4146 4147 4148 4149 4150 4151 4152 4153 4154 4155 4156 4157 4158 4159
		return -EIO;

	/* The hash part is what left of the kvd without the
	 * linear part. It is split to the single size and
	 * double size by the parts ratio from the profile.
	 * Both sizes must be a multiplications of the
	 * granularity from the profile. In case the user
	 * provided the sizes they are obtained via devlink.
	 */
	err = devlink_resource_size_get(devlink,
					MLXSW_SP_RESOURCE_KVD_LINEAR,
					p_linear_size);
	if (err)
		*p_linear_size = profile->kvd_linear_size;

	err = devlink_resource_size_get(devlink,
					MLXSW_SP_RESOURCE_KVD_HASH_DOUBLE,
					p_double_size);
	if (err) {
		double_size = MLXSW_CORE_RES_GET(mlxsw_core, KVD_SIZE) -
			      *p_linear_size;
		double_size *= profile->kvd_hash_double_parts;
		double_size /= profile->kvd_hash_double_parts +
			       profile->kvd_hash_single_parts;
		*p_double_size = rounddown(double_size,
4160
					   MLXSW_SP_KVD_GRANULARITY);
4161 4162 4163 4164 4165 4166 4167 4168 4169 4170 4171 4172 4173 4174 4175 4176 4177 4178
	}

	err = devlink_resource_size_get(devlink,
					MLXSW_SP_RESOURCE_KVD_HASH_SINGLE,
					p_single_size);
	if (err)
		*p_single_size = MLXSW_CORE_RES_GET(mlxsw_core, KVD_SIZE) -
				 *p_double_size - *p_linear_size;

	/* Check results are legal. */
	if (*p_single_size < MLXSW_CORE_RES_GET(mlxsw_core, KVD_SINGLE_MIN_SIZE) ||
	    *p_double_size < MLXSW_CORE_RES_GET(mlxsw_core, KVD_DOUBLE_MIN_SIZE) ||
	    MLXSW_CORE_RES_GET(mlxsw_core, KVD_SIZE) < *p_linear_size)
		return -EIO;

	return 0;
}

4179 4180
static struct mlxsw_driver mlxsw_sp1_driver = {
	.kind				= mlxsw_sp1_driver_name,
4181
	.priv_size			= sizeof(struct mlxsw_sp),
4182
	.init				= mlxsw_sp1_init,
4183
	.fini				= mlxsw_sp_fini,
4184
	.basic_trap_groups_set		= mlxsw_sp_basic_trap_groups_set,
4185 4186 4187 4188 4189 4190 4191 4192 4193 4194 4195 4196 4197
	.port_split			= mlxsw_sp_port_split,
	.port_unsplit			= mlxsw_sp_port_unsplit,
	.sb_pool_get			= mlxsw_sp_sb_pool_get,
	.sb_pool_set			= mlxsw_sp_sb_pool_set,
	.sb_port_pool_get		= mlxsw_sp_sb_port_pool_get,
	.sb_port_pool_set		= mlxsw_sp_sb_port_pool_set,
	.sb_tc_pool_bind_get		= mlxsw_sp_sb_tc_pool_bind_get,
	.sb_tc_pool_bind_set		= mlxsw_sp_sb_tc_pool_bind_set,
	.sb_occ_snapshot		= mlxsw_sp_sb_occ_snapshot,
	.sb_occ_max_clear		= mlxsw_sp_sb_occ_max_clear,
	.sb_occ_port_pool_get		= mlxsw_sp_sb_occ_port_pool_get,
	.sb_occ_tc_port_bind_get	= mlxsw_sp_sb_occ_tc_port_bind_get,
	.txhdr_construct		= mlxsw_sp_txhdr_construct,
4198
	.resources_register		= mlxsw_sp1_resources_register,
4199
	.kvd_sizes_get			= mlxsw_sp_kvd_sizes_get,
4200
	.txhdr_len			= MLXSW_TXHDR_LEN,
4201 4202 4203 4204 4205 4206 4207 4208 4209 4210 4211 4212 4213 4214 4215 4216 4217 4218 4219 4220 4221 4222 4223 4224 4225 4226
	.profile			= &mlxsw_sp1_config_profile,
	.res_query_enabled		= true,
};

static struct mlxsw_driver mlxsw_sp2_driver = {
	.kind				= mlxsw_sp2_driver_name,
	.priv_size			= sizeof(struct mlxsw_sp),
	.init				= mlxsw_sp2_init,
	.fini				= mlxsw_sp_fini,
	.basic_trap_groups_set		= mlxsw_sp_basic_trap_groups_set,
	.port_split			= mlxsw_sp_port_split,
	.port_unsplit			= mlxsw_sp_port_unsplit,
	.sb_pool_get			= mlxsw_sp_sb_pool_get,
	.sb_pool_set			= mlxsw_sp_sb_pool_set,
	.sb_port_pool_get		= mlxsw_sp_sb_port_pool_get,
	.sb_port_pool_set		= mlxsw_sp_sb_port_pool_set,
	.sb_tc_pool_bind_get		= mlxsw_sp_sb_tc_pool_bind_get,
	.sb_tc_pool_bind_set		= mlxsw_sp_sb_tc_pool_bind_set,
	.sb_occ_snapshot		= mlxsw_sp_sb_occ_snapshot,
	.sb_occ_max_clear		= mlxsw_sp_sb_occ_max_clear,
	.sb_occ_port_pool_get		= mlxsw_sp_sb_occ_port_pool_get,
	.sb_occ_tc_port_bind_get	= mlxsw_sp_sb_occ_tc_port_bind_get,
	.txhdr_construct		= mlxsw_sp_txhdr_construct,
	.resources_register		= mlxsw_sp2_resources_register,
	.txhdr_len			= MLXSW_TXHDR_LEN,
	.profile			= &mlxsw_sp2_config_profile,
4227
	.res_query_enabled		= true,
4228 4229
};

4230
bool mlxsw_sp_port_dev_check(const struct net_device *dev)
4231 4232 4233 4234
{
	return dev->netdev_ops == &mlxsw_sp_port_netdev_ops;
}

4235
static int mlxsw_sp_lower_dev_walk(struct net_device *lower_dev, void *data)
D
David Ahern 已提交
4236
{
4237
	struct mlxsw_sp_port **p_mlxsw_sp_port = data;
D
David Ahern 已提交
4238 4239 4240
	int ret = 0;

	if (mlxsw_sp_port_dev_check(lower_dev)) {
4241
		*p_mlxsw_sp_port = netdev_priv(lower_dev);
D
David Ahern 已提交
4242 4243 4244 4245 4246 4247
		ret = 1;
	}

	return ret;
}

4248
struct mlxsw_sp_port *mlxsw_sp_port_dev_lower_find(struct net_device *dev)
4249
{
4250
	struct mlxsw_sp_port *mlxsw_sp_port;
4251 4252 4253 4254

	if (mlxsw_sp_port_dev_check(dev))
		return netdev_priv(dev);

4255 4256
	mlxsw_sp_port = NULL;
	netdev_walk_all_lower_dev(dev, mlxsw_sp_lower_dev_walk, &mlxsw_sp_port);
D
David Ahern 已提交
4257

4258
	return mlxsw_sp_port;
4259 4260
}

4261
struct mlxsw_sp *mlxsw_sp_lower_get(struct net_device *dev)
4262 4263 4264 4265 4266 4267 4268
{
	struct mlxsw_sp_port *mlxsw_sp_port;

	mlxsw_sp_port = mlxsw_sp_port_dev_lower_find(dev);
	return mlxsw_sp_port ? mlxsw_sp_port->mlxsw_sp : NULL;
}

4269
struct mlxsw_sp_port *mlxsw_sp_port_dev_lower_find_rcu(struct net_device *dev)
4270
{
4271
	struct mlxsw_sp_port *mlxsw_sp_port;
4272 4273 4274 4275

	if (mlxsw_sp_port_dev_check(dev))
		return netdev_priv(dev);

4276 4277 4278
	mlxsw_sp_port = NULL;
	netdev_walk_all_lower_dev_rcu(dev, mlxsw_sp_lower_dev_walk,
				      &mlxsw_sp_port);
D
David Ahern 已提交
4279

4280
	return mlxsw_sp_port;
4281 4282 4283 4284 4285 4286 4287 4288 4289 4290 4291 4292 4293 4294 4295 4296 4297 4298 4299
}

struct mlxsw_sp_port *mlxsw_sp_port_lower_dev_hold(struct net_device *dev)
{
	struct mlxsw_sp_port *mlxsw_sp_port;

	rcu_read_lock();
	mlxsw_sp_port = mlxsw_sp_port_dev_lower_find_rcu(dev);
	if (mlxsw_sp_port)
		dev_hold(mlxsw_sp_port->dev);
	rcu_read_unlock();
	return mlxsw_sp_port;
}

void mlxsw_sp_port_dev_put(struct mlxsw_sp_port *mlxsw_sp_port)
{
	dev_put(mlxsw_sp_port->dev);
}

4300 4301 4302 4303 4304 4305 4306 4307 4308 4309 4310 4311 4312 4313 4314 4315 4316 4317 4318 4319 4320 4321 4322 4323 4324 4325 4326 4327 4328 4329 4330 4331 4332 4333 4334 4335 4336 4337 4338 4339 4340 4341 4342 4343 4344 4345 4346 4347 4348 4349 4350 4351 4352 4353 4354 4355 4356 4357 4358 4359 4360 4361 4362 4363 4364 4365
static int mlxsw_sp_lag_create(struct mlxsw_sp *mlxsw_sp, u16 lag_id)
{
	char sldr_pl[MLXSW_REG_SLDR_LEN];

	mlxsw_reg_sldr_lag_create_pack(sldr_pl, lag_id);
	return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sldr), sldr_pl);
}

static int mlxsw_sp_lag_destroy(struct mlxsw_sp *mlxsw_sp, u16 lag_id)
{
	char sldr_pl[MLXSW_REG_SLDR_LEN];

	mlxsw_reg_sldr_lag_destroy_pack(sldr_pl, lag_id);
	return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sldr), sldr_pl);
}

static int mlxsw_sp_lag_col_port_add(struct mlxsw_sp_port *mlxsw_sp_port,
				     u16 lag_id, u8 port_index)
{
	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
	char slcor_pl[MLXSW_REG_SLCOR_LEN];

	mlxsw_reg_slcor_port_add_pack(slcor_pl, mlxsw_sp_port->local_port,
				      lag_id, port_index);
	return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(slcor), slcor_pl);
}

static int mlxsw_sp_lag_col_port_remove(struct mlxsw_sp_port *mlxsw_sp_port,
					u16 lag_id)
{
	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
	char slcor_pl[MLXSW_REG_SLCOR_LEN];

	mlxsw_reg_slcor_port_remove_pack(slcor_pl, mlxsw_sp_port->local_port,
					 lag_id);
	return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(slcor), slcor_pl);
}

static int mlxsw_sp_lag_col_port_enable(struct mlxsw_sp_port *mlxsw_sp_port,
					u16 lag_id)
{
	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
	char slcor_pl[MLXSW_REG_SLCOR_LEN];

	mlxsw_reg_slcor_col_enable_pack(slcor_pl, mlxsw_sp_port->local_port,
					lag_id);
	return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(slcor), slcor_pl);
}

static int mlxsw_sp_lag_col_port_disable(struct mlxsw_sp_port *mlxsw_sp_port,
					 u16 lag_id)
{
	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
	char slcor_pl[MLXSW_REG_SLCOR_LEN];

	mlxsw_reg_slcor_col_disable_pack(slcor_pl, mlxsw_sp_port->local_port,
					 lag_id);
	return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(slcor), slcor_pl);
}

static int mlxsw_sp_lag_index_get(struct mlxsw_sp *mlxsw_sp,
				  struct net_device *lag_dev,
				  u16 *p_lag_id)
{
	struct mlxsw_sp_upper *lag;
	int free_lag_id = -1;
J
Jiri Pirko 已提交
4366
	u64 max_lag;
4367 4368
	int i;

J
Jiri Pirko 已提交
4369 4370
	max_lag = MLXSW_CORE_RES_GET(mlxsw_sp->core, MAX_LAG);
	for (i = 0; i < max_lag; i++) {
4371 4372 4373 4374 4375 4376 4377 4378 4379 4380 4381 4382 4383 4384 4385 4386 4387 4388 4389
		lag = mlxsw_sp_lag_get(mlxsw_sp, i);
		if (lag->ref_count) {
			if (lag->dev == lag_dev) {
				*p_lag_id = i;
				return 0;
			}
		} else if (free_lag_id < 0) {
			free_lag_id = i;
		}
	}
	if (free_lag_id < 0)
		return -EBUSY;
	*p_lag_id = free_lag_id;
	return 0;
}

static bool
mlxsw_sp_master_lag_check(struct mlxsw_sp *mlxsw_sp,
			  struct net_device *lag_dev,
4390 4391
			  struct netdev_lag_upper_info *lag_upper_info,
			  struct netlink_ext_ack *extack)
4392 4393 4394
{
	u16 lag_id;

4395
	if (mlxsw_sp_lag_index_get(mlxsw_sp, lag_dev, &lag_id) != 0) {
4396
		NL_SET_ERR_MSG_MOD(extack, "Exceeded number of supported LAG devices");
4397
		return false;
4398 4399
	}
	if (lag_upper_info->tx_type != NETDEV_LAG_TX_TYPE_HASH) {
4400
		NL_SET_ERR_MSG_MOD(extack, "LAG device using unsupported Tx type");
4401
		return false;
4402
	}
4403 4404 4405 4406 4407 4408
	return true;
}

static int mlxsw_sp_port_lag_index_get(struct mlxsw_sp *mlxsw_sp,
				       u16 lag_id, u8 *p_port_index)
{
J
Jiri Pirko 已提交
4409
	u64 max_lag_members;
4410 4411
	int i;

J
Jiri Pirko 已提交
4412 4413 4414
	max_lag_members = MLXSW_CORE_RES_GET(mlxsw_sp->core,
					     MAX_LAG_MEMBERS);
	for (i = 0; i < max_lag_members; i++) {
4415 4416 4417 4418 4419 4420 4421 4422 4423 4424 4425 4426
		if (!mlxsw_sp_port_lagged_get(mlxsw_sp, lag_id, i)) {
			*p_port_index = i;
			return 0;
		}
	}
	return -EBUSY;
}

static int mlxsw_sp_port_lag_join(struct mlxsw_sp_port *mlxsw_sp_port,
				  struct net_device *lag_dev)
{
	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
4427
	struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan;
4428 4429 4430 4431 4432 4433 4434 4435 4436 4437 4438 4439 4440 4441 4442 4443 4444 4445 4446 4447 4448 4449 4450 4451 4452 4453 4454 4455 4456 4457 4458
	struct mlxsw_sp_upper *lag;
	u16 lag_id;
	u8 port_index;
	int err;

	err = mlxsw_sp_lag_index_get(mlxsw_sp, lag_dev, &lag_id);
	if (err)
		return err;
	lag = mlxsw_sp_lag_get(mlxsw_sp, lag_id);
	if (!lag->ref_count) {
		err = mlxsw_sp_lag_create(mlxsw_sp, lag_id);
		if (err)
			return err;
		lag->dev = lag_dev;
	}

	err = mlxsw_sp_port_lag_index_get(mlxsw_sp, lag_id, &port_index);
	if (err)
		return err;
	err = mlxsw_sp_lag_col_port_add(mlxsw_sp_port, lag_id, port_index);
	if (err)
		goto err_col_port_add;
	err = mlxsw_sp_lag_col_port_enable(mlxsw_sp_port, lag_id);
	if (err)
		goto err_col_port_enable;

	mlxsw_core_lag_mapping_set(mlxsw_sp->core, lag_id, port_index,
				   mlxsw_sp_port->local_port);
	mlxsw_sp_port->lag_id = lag_id;
	mlxsw_sp_port->lagged = 1;
	lag->ref_count++;
4459

4460 4461 4462
	/* Port is no longer usable as a router interface */
	mlxsw_sp_port_vlan = mlxsw_sp_port_vlan_find_by_vid(mlxsw_sp_port, 1);
	if (mlxsw_sp_port_vlan->fid)
4463
		mlxsw_sp_port_vlan_router_leave(mlxsw_sp_port_vlan);
4464

4465 4466
	return 0;

4467 4468
err_col_port_enable:
	mlxsw_sp_lag_col_port_remove(mlxsw_sp_port, lag_id);
4469 4470 4471 4472 4473 4474
err_col_port_add:
	if (!lag->ref_count)
		mlxsw_sp_lag_destroy(mlxsw_sp, lag_id);
	return err;
}

4475 4476
static void mlxsw_sp_port_lag_leave(struct mlxsw_sp_port *mlxsw_sp_port,
				    struct net_device *lag_dev)
4477 4478 4479
{
	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
	u16 lag_id = mlxsw_sp_port->lag_id;
4480
	struct mlxsw_sp_upper *lag;
4481 4482

	if (!mlxsw_sp_port->lagged)
4483
		return;
4484 4485 4486
	lag = mlxsw_sp_lag_get(mlxsw_sp, lag_id);
	WARN_ON(lag->ref_count == 0);

4487 4488
	mlxsw_sp_lag_col_port_disable(mlxsw_sp_port, lag_id);
	mlxsw_sp_lag_col_port_remove(mlxsw_sp_port, lag_id);
4489

4490 4491
	/* Any VLANs configured on the port are no longer valid */
	mlxsw_sp_port_vlan_flush(mlxsw_sp_port);
4492

4493
	if (lag->ref_count == 1)
4494
		mlxsw_sp_lag_destroy(mlxsw_sp, lag_id);
4495 4496 4497 4498 4499

	mlxsw_core_lag_mapping_clear(mlxsw_sp->core, lag_id,
				     mlxsw_sp_port->local_port);
	mlxsw_sp_port->lagged = 0;
	lag->ref_count--;
4500

4501 4502 4503
	mlxsw_sp_port_vlan_get(mlxsw_sp_port, 1);
	/* Make sure untagged frames are allowed to ingress */
	mlxsw_sp_port_pvid_set(mlxsw_sp_port, 1);
4504 4505
}

4506 4507 4508 4509 4510 4511 4512 4513 4514 4515 4516 4517 4518 4519 4520 4521 4522 4523 4524 4525 4526 4527 4528 4529 4530 4531 4532 4533 4534 4535 4536 4537 4538 4539 4540 4541 4542 4543 4544
static int mlxsw_sp_lag_dist_port_add(struct mlxsw_sp_port *mlxsw_sp_port,
				      u16 lag_id)
{
	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
	char sldr_pl[MLXSW_REG_SLDR_LEN];

	mlxsw_reg_sldr_lag_add_port_pack(sldr_pl, lag_id,
					 mlxsw_sp_port->local_port);
	return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sldr), sldr_pl);
}

static int mlxsw_sp_lag_dist_port_remove(struct mlxsw_sp_port *mlxsw_sp_port,
					 u16 lag_id)
{
	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
	char sldr_pl[MLXSW_REG_SLDR_LEN];

	mlxsw_reg_sldr_lag_remove_port_pack(sldr_pl, lag_id,
					    mlxsw_sp_port->local_port);
	return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sldr), sldr_pl);
}

static int mlxsw_sp_port_lag_tx_en_set(struct mlxsw_sp_port *mlxsw_sp_port,
				       bool lag_tx_enabled)
{
	if (lag_tx_enabled)
		return mlxsw_sp_lag_dist_port_add(mlxsw_sp_port,
						  mlxsw_sp_port->lag_id);
	else
		return mlxsw_sp_lag_dist_port_remove(mlxsw_sp_port,
						     mlxsw_sp_port->lag_id);
}

static int mlxsw_sp_port_lag_changed(struct mlxsw_sp_port *mlxsw_sp_port,
				     struct netdev_lag_lower_state_info *info)
{
	return mlxsw_sp_port_lag_tx_en_set(mlxsw_sp_port, info->tx_enabled);
}

4545 4546 4547 4548 4549 4550 4551 4552 4553 4554 4555 4556 4557 4558 4559 4560 4561 4562 4563 4564 4565 4566 4567 4568 4569 4570 4571
static int mlxsw_sp_port_stp_set(struct mlxsw_sp_port *mlxsw_sp_port,
				 bool enable)
{
	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
	enum mlxsw_reg_spms_state spms_state;
	char *spms_pl;
	u16 vid;
	int err;

	spms_state = enable ? MLXSW_REG_SPMS_STATE_FORWARDING :
			      MLXSW_REG_SPMS_STATE_DISCARDING;

	spms_pl = kmalloc(MLXSW_REG_SPMS_LEN, GFP_KERNEL);
	if (!spms_pl)
		return -ENOMEM;
	mlxsw_reg_spms_pack(spms_pl, mlxsw_sp_port->local_port);

	for (vid = 0; vid < VLAN_N_VID; vid++)
		mlxsw_reg_spms_vid_pack(spms_pl, vid, spms_state);

	err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(spms), spms_pl);
	kfree(spms_pl);
	return err;
}

static int mlxsw_sp_port_ovs_join(struct mlxsw_sp_port *mlxsw_sp_port)
{
4572
	u16 vid = 1;
4573 4574
	int err;

4575
	err = mlxsw_sp_port_vp_mode_set(mlxsw_sp_port, true);
4576 4577
	if (err)
		return err;
4578 4579 4580
	err = mlxsw_sp_port_stp_set(mlxsw_sp_port, true);
	if (err)
		goto err_port_stp_set;
4581 4582 4583 4584
	err = mlxsw_sp_port_vlan_set(mlxsw_sp_port, 2, VLAN_N_VID - 1,
				     true, false);
	if (err)
		goto err_port_vlan_set;
4585 4586 4587 4588 4589 4590 4591 4592

	for (; vid <= VLAN_N_VID - 1; vid++) {
		err = mlxsw_sp_port_vid_learning_set(mlxsw_sp_port,
						     vid, false);
		if (err)
			goto err_vid_learning_set;
	}

4593 4594
	return 0;

4595 4596 4597
err_vid_learning_set:
	for (vid--; vid >= 1; vid--)
		mlxsw_sp_port_vid_learning_set(mlxsw_sp_port, vid, true);
4598 4599
err_port_vlan_set:
	mlxsw_sp_port_stp_set(mlxsw_sp_port, false);
4600 4601
err_port_stp_set:
	mlxsw_sp_port_vp_mode_set(mlxsw_sp_port, false);
4602 4603 4604 4605 4606
	return err;
}

static void mlxsw_sp_port_ovs_leave(struct mlxsw_sp_port *mlxsw_sp_port)
{
4607 4608 4609 4610 4611 4612
	u16 vid;

	for (vid = VLAN_N_VID - 1; vid >= 1; vid--)
		mlxsw_sp_port_vid_learning_set(mlxsw_sp_port,
					       vid, true);

4613 4614 4615
	mlxsw_sp_port_vlan_set(mlxsw_sp_port, 2, VLAN_N_VID - 1,
			       false, false);
	mlxsw_sp_port_stp_set(mlxsw_sp_port, false);
4616
	mlxsw_sp_port_vp_mode_set(mlxsw_sp_port, false);
4617 4618
}

4619 4620 4621 4622 4623 4624 4625 4626 4627 4628 4629 4630 4631 4632 4633 4634 4635 4636 4637 4638 4639 4640 4641 4642 4643 4644 4645 4646 4647 4648 4649 4650 4651 4652 4653
static bool mlxsw_sp_bridge_has_multiple_vxlans(struct net_device *br_dev)
{
	unsigned int num_vxlans = 0;
	struct net_device *dev;
	struct list_head *iter;

	netdev_for_each_lower_dev(br_dev, dev, iter) {
		if (netif_is_vxlan(dev))
			num_vxlans++;
	}

	return num_vxlans > 1;
}

static bool mlxsw_sp_bridge_vxlan_is_valid(struct net_device *br_dev,
					   struct netlink_ext_ack *extack)
{
	if (br_multicast_enabled(br_dev)) {
		NL_SET_ERR_MSG_MOD(extack, "Multicast can not be enabled on a bridge with a VxLAN device");
		return false;
	}

	if (br_vlan_enabled(br_dev)) {
		NL_SET_ERR_MSG_MOD(extack, "VLAN filtering can not be enabled on a bridge with a VxLAN device");
		return false;
	}

	if (mlxsw_sp_bridge_has_multiple_vxlans(br_dev)) {
		NL_SET_ERR_MSG_MOD(extack, "Multiple VxLAN devices are not supported in a VLAN-unaware bridge");
		return false;
	}

	return true;
}

4654 4655
static int mlxsw_sp_netdevice_port_upper_event(struct net_device *lower_dev,
					       struct net_device *dev,
4656
					       unsigned long event, void *ptr)
4657 4658 4659
{
	struct netdev_notifier_changeupper_info *info;
	struct mlxsw_sp_port *mlxsw_sp_port;
4660
	struct netlink_ext_ack *extack;
4661 4662
	struct net_device *upper_dev;
	struct mlxsw_sp *mlxsw_sp;
4663
	int err = 0;
4664 4665 4666 4667

	mlxsw_sp_port = netdev_priv(dev);
	mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
	info = ptr;
4668
	extack = netdev_notifier_info_to_extack(&info->info);
4669 4670 4671 4672

	switch (event) {
	case NETDEV_PRECHANGEUPPER:
		upper_dev = info->upper_dev;
4673 4674
		if (!is_vlan_dev(upper_dev) &&
		    !netif_is_lag_master(upper_dev) &&
4675
		    !netif_is_bridge_master(upper_dev) &&
4676 4677
		    !netif_is_ovs_master(upper_dev) &&
		    !netif_is_macvlan(upper_dev)) {
4678
			NL_SET_ERR_MSG_MOD(extack, "Unknown upper device type");
4679
			return -EINVAL;
4680
		}
4681
		if (!info->linking)
4682
			break;
4683 4684 4685 4686 4687
		if (netif_is_bridge_master(upper_dev) &&
		    !mlxsw_sp_bridge_device_is_offloaded(mlxsw_sp, upper_dev) &&
		    mlxsw_sp_bridge_has_vxlan(upper_dev) &&
		    !mlxsw_sp_bridge_vxlan_is_valid(upper_dev, extack))
			return -EOPNOTSUPP;
4688 4689 4690 4691
		if (netdev_has_any_upper_dev(upper_dev) &&
		    (!netif_is_bridge_master(upper_dev) ||
		     !mlxsw_sp_bridge_device_is_offloaded(mlxsw_sp,
							  upper_dev))) {
4692
			NL_SET_ERR_MSG_MOD(extack, "Enslaving a port to a device that already has an upper device is not supported");
4693
			return -EINVAL;
4694
		}
4695 4696
		if (netif_is_lag_master(upper_dev) &&
		    !mlxsw_sp_master_lag_check(mlxsw_sp, upper_dev,
4697
					       info->upper_info, extack))
4698
			return -EINVAL;
4699
		if (netif_is_lag_master(upper_dev) && vlan_uses_dev(dev)) {
4700
			NL_SET_ERR_MSG_MOD(extack, "Master device is a LAG master and this device has a VLAN");
4701
			return -EINVAL;
4702
		}
4703
		if (netif_is_lag_port(dev) && is_vlan_dev(upper_dev) &&
4704
		    !netif_is_lag_master(vlan_dev_real_dev(upper_dev))) {
4705
			NL_SET_ERR_MSG_MOD(extack, "Can not put a VLAN on a LAG port");
4706
			return -EINVAL;
4707
		}
4708 4709 4710 4711 4712
		if (netif_is_macvlan(upper_dev) &&
		    !mlxsw_sp_rif_find_by_dev(mlxsw_sp, lower_dev)) {
			NL_SET_ERR_MSG_MOD(extack, "macvlan is only supported on top of router interfaces");
			return -EOPNOTSUPP;
		}
4713
		if (netif_is_ovs_master(upper_dev) && vlan_uses_dev(dev)) {
4714
			NL_SET_ERR_MSG_MOD(extack, "Master device is an OVS master and this device has a VLAN");
4715
			return -EINVAL;
4716 4717
		}
		if (netif_is_ovs_port(dev) && is_vlan_dev(upper_dev)) {
4718
			NL_SET_ERR_MSG_MOD(extack, "Can not put a VLAN on an OVS port");
4719
			return -EINVAL;
4720
		}
4721 4722 4723 4724 4725
		if (is_vlan_dev(upper_dev) &&
		    vlan_dev_vlan_id(upper_dev) == 1) {
			NL_SET_ERR_MSG_MOD(extack, "Creating a VLAN device with VID 1 is unsupported: VLAN 1 carries untagged traffic");
			return -EINVAL;
		}
4726 4727 4728
		break;
	case NETDEV_CHANGEUPPER:
		upper_dev = info->upper_dev;
4729
		if (netif_is_bridge_master(upper_dev)) {
4730 4731
			if (info->linking)
				err = mlxsw_sp_port_bridge_join(mlxsw_sp_port,
4732
								lower_dev,
4733 4734
								upper_dev,
								extack);
4735
			else
4736 4737 4738
				mlxsw_sp_port_bridge_leave(mlxsw_sp_port,
							   lower_dev,
							   upper_dev);
4739
		} else if (netif_is_lag_master(upper_dev)) {
4740
			if (info->linking)
4741 4742
				err = mlxsw_sp_port_lag_join(mlxsw_sp_port,
							     upper_dev);
4743
			else
4744 4745
				mlxsw_sp_port_lag_leave(mlxsw_sp_port,
							upper_dev);
4746 4747 4748 4749 4750
		} else if (netif_is_ovs_master(upper_dev)) {
			if (info->linking)
				err = mlxsw_sp_port_ovs_join(mlxsw_sp_port);
			else
				mlxsw_sp_port_ovs_leave(mlxsw_sp_port);
4751 4752 4753
		} else if (netif_is_macvlan(upper_dev)) {
			if (!info->linking)
				mlxsw_sp_rif_macvlan_del(mlxsw_sp, upper_dev);
4754 4755 4756 4757
		}
		break;
	}

4758
	return err;
4759 4760
}

4761 4762 4763 4764 4765 4766 4767 4768 4769 4770 4771 4772 4773 4774 4775 4776 4777 4778 4779 4780 4781
static int mlxsw_sp_netdevice_port_lower_event(struct net_device *dev,
					       unsigned long event, void *ptr)
{
	struct netdev_notifier_changelowerstate_info *info;
	struct mlxsw_sp_port *mlxsw_sp_port;
	int err;

	mlxsw_sp_port = netdev_priv(dev);
	info = ptr;

	switch (event) {
	case NETDEV_CHANGELOWERSTATE:
		if (netif_is_lag_port(dev) && mlxsw_sp_port->lagged) {
			err = mlxsw_sp_port_lag_changed(mlxsw_sp_port,
							info->lower_state_info);
			if (err)
				netdev_err(dev, "Failed to reflect link aggregation lower state change\n");
		}
		break;
	}

4782
	return 0;
4783 4784
}

4785 4786
static int mlxsw_sp_netdevice_port_event(struct net_device *lower_dev,
					 struct net_device *port_dev,
4787 4788 4789 4790 4791
					 unsigned long event, void *ptr)
{
	switch (event) {
	case NETDEV_PRECHANGEUPPER:
	case NETDEV_CHANGEUPPER:
4792 4793
		return mlxsw_sp_netdevice_port_upper_event(lower_dev, port_dev,
							   event, ptr);
4794
	case NETDEV_CHANGELOWERSTATE:
4795 4796
		return mlxsw_sp_netdevice_port_lower_event(port_dev, event,
							   ptr);
4797 4798
	}

4799
	return 0;
4800 4801
}

4802 4803 4804 4805 4806 4807 4808 4809 4810
static int mlxsw_sp_netdevice_lag_event(struct net_device *lag_dev,
					unsigned long event, void *ptr)
{
	struct net_device *dev;
	struct list_head *iter;
	int ret;

	netdev_for_each_lower_dev(lag_dev, dev, iter) {
		if (mlxsw_sp_port_dev_check(dev)) {
4811 4812
			ret = mlxsw_sp_netdevice_port_event(lag_dev, dev, event,
							    ptr);
4813
			if (ret)
4814 4815 4816 4817
				return ret;
		}
	}

4818
	return 0;
4819 4820
}

4821 4822 4823 4824
static int mlxsw_sp_netdevice_port_vlan_event(struct net_device *vlan_dev,
					      struct net_device *dev,
					      unsigned long event, void *ptr,
					      u16 vid)
4825 4826
{
	struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
4827
	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
4828
	struct netdev_notifier_changeupper_info *info = ptr;
4829
	struct netlink_ext_ack *extack;
4830
	struct net_device *upper_dev;
4831
	int err = 0;
4832

4833 4834
	extack = netdev_notifier_info_to_extack(&info->info);

4835 4836 4837
	switch (event) {
	case NETDEV_PRECHANGEUPPER:
		upper_dev = info->upper_dev;
4838 4839 4840
		if (!netif_is_bridge_master(upper_dev) &&
		    !netif_is_macvlan(upper_dev)) {
			NL_SET_ERR_MSG_MOD(extack, "Unknown upper device type");
4841
			return -EINVAL;
4842
		}
4843 4844
		if (!info->linking)
			break;
4845 4846 4847 4848 4849
		if (netif_is_bridge_master(upper_dev) &&
		    !mlxsw_sp_bridge_device_is_offloaded(mlxsw_sp, upper_dev) &&
		    mlxsw_sp_bridge_has_vxlan(upper_dev) &&
		    !mlxsw_sp_bridge_vxlan_is_valid(upper_dev, extack))
			return -EOPNOTSUPP;
4850 4851 4852 4853
		if (netdev_has_any_upper_dev(upper_dev) &&
		    (!netif_is_bridge_master(upper_dev) ||
		     !mlxsw_sp_bridge_device_is_offloaded(mlxsw_sp,
							  upper_dev))) {
4854
			NL_SET_ERR_MSG_MOD(extack, "Enslaving a port to a device that already has an upper device is not supported");
4855
			return -EINVAL;
4856
		}
4857 4858 4859 4860 4861
		if (netif_is_macvlan(upper_dev) &&
		    !mlxsw_sp_rif_find_by_dev(mlxsw_sp, vlan_dev)) {
			NL_SET_ERR_MSG_MOD(extack, "macvlan is only supported on top of router interfaces");
			return -EOPNOTSUPP;
		}
4862 4863 4864
		break;
	case NETDEV_CHANGEUPPER:
		upper_dev = info->upper_dev;
4865 4866
		if (netif_is_bridge_master(upper_dev)) {
			if (info->linking)
4867 4868
				err = mlxsw_sp_port_bridge_join(mlxsw_sp_port,
								vlan_dev,
4869 4870
								upper_dev,
								extack);
4871
			else
4872 4873 4874
				mlxsw_sp_port_bridge_leave(mlxsw_sp_port,
							   vlan_dev,
							   upper_dev);
4875 4876 4877
		} else if (netif_is_macvlan(upper_dev)) {
			if (!info->linking)
				mlxsw_sp_rif_macvlan_del(mlxsw_sp, upper_dev);
4878
		} else {
4879 4880
			err = -EINVAL;
			WARN_ON(1);
4881
		}
4882
		break;
4883 4884
	}

4885
	return err;
4886 4887
}

4888 4889 4890 4891
static int mlxsw_sp_netdevice_lag_port_vlan_event(struct net_device *vlan_dev,
						  struct net_device *lag_dev,
						  unsigned long event,
						  void *ptr, u16 vid)
4892 4893 4894 4895 4896 4897 4898
{
	struct net_device *dev;
	struct list_head *iter;
	int ret;

	netdev_for_each_lower_dev(lag_dev, dev, iter) {
		if (mlxsw_sp_port_dev_check(dev)) {
4899 4900 4901
			ret = mlxsw_sp_netdevice_port_vlan_event(vlan_dev, dev,
								 event, ptr,
								 vid);
4902
			if (ret)
4903 4904 4905 4906
				return ret;
		}
	}

4907
	return 0;
4908 4909
}

4910 4911 4912 4913 4914 4915
static int mlxsw_sp_netdevice_vlan_event(struct net_device *vlan_dev,
					 unsigned long event, void *ptr)
{
	struct net_device *real_dev = vlan_dev_real_dev(vlan_dev);
	u16 vid = vlan_dev_vlan_id(vlan_dev);

4916
	if (mlxsw_sp_port_dev_check(real_dev))
4917 4918
		return mlxsw_sp_netdevice_port_vlan_event(vlan_dev, real_dev,
							  event, ptr, vid);
4919
	else if (netif_is_lag_master(real_dev))
4920 4921 4922
		return mlxsw_sp_netdevice_lag_port_vlan_event(vlan_dev,
							      real_dev, event,
							      ptr, vid);
4923

4924
	return 0;
4925 4926
}

4927 4928 4929 4930 4931 4932 4933 4934 4935 4936 4937 4938 4939 4940 4941 4942 4943 4944 4945 4946 4947 4948 4949 4950 4951 4952 4953 4954 4955
static int mlxsw_sp_netdevice_bridge_event(struct net_device *br_dev,
					   unsigned long event, void *ptr)
{
	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_lower_get(br_dev);
	struct netdev_notifier_changeupper_info *info = ptr;
	struct netlink_ext_ack *extack;
	struct net_device *upper_dev;

	if (!mlxsw_sp)
		return 0;

	extack = netdev_notifier_info_to_extack(&info->info);

	switch (event) {
	case NETDEV_PRECHANGEUPPER:
		upper_dev = info->upper_dev;
		if (!is_vlan_dev(upper_dev) && !netif_is_macvlan(upper_dev)) {
			NL_SET_ERR_MSG_MOD(extack, "Unknown upper device type");
			return -EOPNOTSUPP;
		}
		if (!info->linking)
			break;
		if (netif_is_macvlan(upper_dev) &&
		    !mlxsw_sp_rif_find_by_dev(mlxsw_sp, br_dev)) {
			NL_SET_ERR_MSG_MOD(extack, "macvlan is only supported on top of router interfaces");
			return -EOPNOTSUPP;
		}
		break;
	case NETDEV_CHANGEUPPER:
4956 4957 4958
		upper_dev = info->upper_dev;
		if (info->linking)
			break;
4959 4960
		if (is_vlan_dev(upper_dev))
			mlxsw_sp_rif_destroy_by_dev(mlxsw_sp, upper_dev);
4961 4962
		if (netif_is_macvlan(upper_dev))
			mlxsw_sp_rif_macvlan_del(mlxsw_sp, upper_dev);
4963 4964 4965 4966 4967 4968 4969 4970 4971 4972 4973 4974 4975 4976 4977 4978 4979 4980 4981 4982 4983 4984 4985 4986
		break;
	}

	return 0;
}

static int mlxsw_sp_netdevice_macvlan_event(struct net_device *macvlan_dev,
					    unsigned long event, void *ptr)
{
	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_lower_get(macvlan_dev);
	struct netdev_notifier_changeupper_info *info = ptr;
	struct netlink_ext_ack *extack;

	if (!mlxsw_sp || event != NETDEV_PRECHANGEUPPER)
		return 0;

	extack = netdev_notifier_info_to_extack(&info->info);

	/* VRF enslavement is handled in mlxsw_sp_netdevice_vrf_event() */
	NL_SET_ERR_MSG_MOD(extack, "Unknown upper device type");

	return -EOPNOTSUPP;
}

4987 4988 4989 4990 4991 4992 4993 4994 4995
static bool mlxsw_sp_is_vrf_event(unsigned long event, void *ptr)
{
	struct netdev_notifier_changeupper_info *info = ptr;

	if (event != NETDEV_PRECHANGEUPPER && event != NETDEV_CHANGEUPPER)
		return false;
	return netif_is_l3_master(info->upper_dev);
}

4996 4997 4998 4999 5000 5001 5002 5003 5004 5005 5006 5007 5008 5009 5010 5011 5012 5013 5014 5015 5016 5017 5018 5019 5020 5021 5022 5023 5024 5025 5026 5027 5028 5029 5030 5031 5032 5033 5034 5035 5036 5037 5038 5039 5040 5041 5042 5043 5044 5045 5046 5047 5048 5049 5050 5051 5052
static int mlxsw_sp_netdevice_vxlan_event(struct mlxsw_sp *mlxsw_sp,
					  struct net_device *dev,
					  unsigned long event, void *ptr)
{
	struct netdev_notifier_changeupper_info *cu_info;
	struct netdev_notifier_info *info = ptr;
	struct netlink_ext_ack *extack;
	struct net_device *upper_dev;

	extack = netdev_notifier_info_to_extack(info);

	switch (event) {
	case NETDEV_CHANGEUPPER:
		cu_info = container_of(info,
				       struct netdev_notifier_changeupper_info,
				       info);
		upper_dev = cu_info->upper_dev;
		if (!netif_is_bridge_master(upper_dev))
			return 0;
		if (!mlxsw_sp_lower_get(upper_dev))
			return 0;
		if (!mlxsw_sp_bridge_vxlan_is_valid(upper_dev, extack))
			return -EOPNOTSUPP;
		if (cu_info->linking) {
			if (!netif_running(dev))
				return 0;
			return mlxsw_sp_bridge_vxlan_join(mlxsw_sp, upper_dev,
							  dev, extack);
		} else {
			mlxsw_sp_bridge_vxlan_leave(mlxsw_sp, upper_dev, dev);
		}
		break;
	case NETDEV_PRE_UP:
		upper_dev = netdev_master_upper_dev_get(dev);
		if (!upper_dev)
			return 0;
		if (!netif_is_bridge_master(upper_dev))
			return 0;
		if (!mlxsw_sp_lower_get(upper_dev))
			return 0;
		return mlxsw_sp_bridge_vxlan_join(mlxsw_sp, upper_dev, dev,
						  extack);
	case NETDEV_DOWN:
		upper_dev = netdev_master_upper_dev_get(dev);
		if (!upper_dev)
			return 0;
		if (!netif_is_bridge_master(upper_dev))
			return 0;
		if (!mlxsw_sp_lower_get(upper_dev))
			return 0;
		mlxsw_sp_bridge_vxlan_leave(mlxsw_sp, upper_dev, dev);
		break;
	}

	return 0;
}

5053
static int mlxsw_sp_netdevice_event(struct notifier_block *nb,
5054 5055 5056
				    unsigned long event, void *ptr)
{
	struct net_device *dev = netdev_notifier_info_to_dev(ptr);
5057
	struct mlxsw_sp_span_entry *span_entry;
5058
	struct mlxsw_sp *mlxsw_sp;
5059
	int err = 0;
5060

5061
	mlxsw_sp = container_of(nb, struct mlxsw_sp, netdevice_nb);
5062 5063 5064 5065 5066
	if (event == NETDEV_UNREGISTER) {
		span_entry = mlxsw_sp_span_entry_find_by_port(mlxsw_sp, dev);
		if (span_entry)
			mlxsw_sp_span_entry_invalidate(mlxsw_sp, span_entry);
	}
5067
	mlxsw_sp_span_respin(mlxsw_sp);
5068

5069 5070
	if (netif_is_vxlan(dev))
		err = mlxsw_sp_netdevice_vxlan_event(mlxsw_sp, dev, event, ptr);
5071 5072 5073
	if (mlxsw_sp_netdev_is_ipip_ol(mlxsw_sp, dev))
		err = mlxsw_sp_netdevice_ipip_ol_event(mlxsw_sp, dev,
						       event, ptr);
5074 5075 5076
	else if (mlxsw_sp_netdev_is_ipip_ul(mlxsw_sp, dev))
		err = mlxsw_sp_netdevice_ipip_ul_event(mlxsw_sp, dev,
						       event, ptr);
5077
	else if (event == NETDEV_CHANGEADDR || event == NETDEV_CHANGEMTU)
5078
		err = mlxsw_sp_netdevice_router_port_event(dev);
5079 5080
	else if (mlxsw_sp_is_vrf_event(event, ptr))
		err = mlxsw_sp_netdevice_vrf_event(dev, event, ptr);
5081
	else if (mlxsw_sp_port_dev_check(dev))
5082
		err = mlxsw_sp_netdevice_port_event(dev, dev, event, ptr);
5083 5084 5085 5086
	else if (netif_is_lag_master(dev))
		err = mlxsw_sp_netdevice_lag_event(dev, event, ptr);
	else if (is_vlan_dev(dev))
		err = mlxsw_sp_netdevice_vlan_event(dev, event, ptr);
5087 5088 5089 5090
	else if (netif_is_bridge_master(dev))
		err = mlxsw_sp_netdevice_bridge_event(dev, event, ptr);
	else if (netif_is_macvlan(dev))
		err = mlxsw_sp_netdevice_macvlan_event(dev, event, ptr);
5091

5092
	return notifier_from_errno(err);
5093 5094
}

5095 5096 5097 5098
static struct notifier_block mlxsw_sp_inetaddr_valid_nb __read_mostly = {
	.notifier_call = mlxsw_sp_inetaddr_valid_event,
};

5099 5100
static struct notifier_block mlxsw_sp_inetaddr_nb __read_mostly = {
	.notifier_call = mlxsw_sp_inetaddr_event,
5101 5102 5103 5104
};

static struct notifier_block mlxsw_sp_inet6addr_valid_nb __read_mostly = {
	.notifier_call = mlxsw_sp_inet6addr_valid_event,
5105 5106
};

5107 5108 5109 5110
static struct notifier_block mlxsw_sp_inet6addr_nb __read_mostly = {
	.notifier_call = mlxsw_sp_inet6addr_event,
};

5111
static const struct pci_device_id mlxsw_sp1_pci_id_table[] = {
5112 5113 5114 5115
	{PCI_VDEVICE(MELLANOX, PCI_DEVICE_ID_MELLANOX_SPECTRUM), 0},
	{0, },
};

5116 5117 5118 5119 5120 5121 5122 5123 5124 5125 5126 5127 5128
static struct pci_driver mlxsw_sp1_pci_driver = {
	.name = mlxsw_sp1_driver_name,
	.id_table = mlxsw_sp1_pci_id_table,
};

static const struct pci_device_id mlxsw_sp2_pci_id_table[] = {
	{PCI_VDEVICE(MELLANOX, PCI_DEVICE_ID_MELLANOX_SPECTRUM2), 0},
	{0, },
};

static struct pci_driver mlxsw_sp2_pci_driver = {
	.name = mlxsw_sp2_driver_name,
	.id_table = mlxsw_sp2_pci_id_table,
5129 5130
};

5131 5132 5133 5134
static int __init mlxsw_sp_module_init(void)
{
	int err;

5135
	register_inetaddr_validator_notifier(&mlxsw_sp_inetaddr_valid_nb);
5136
	register_inetaddr_notifier(&mlxsw_sp_inetaddr_nb);
5137
	register_inet6addr_validator_notifier(&mlxsw_sp_inet6addr_valid_nb);
5138
	register_inet6addr_notifier(&mlxsw_sp_inet6addr_nb);
5139

5140 5141 5142 5143 5144 5145 5146 5147 5148
	err = mlxsw_core_driver_register(&mlxsw_sp1_driver);
	if (err)
		goto err_sp1_core_driver_register;

	err = mlxsw_core_driver_register(&mlxsw_sp2_driver);
	if (err)
		goto err_sp2_core_driver_register;

	err = mlxsw_pci_driver_register(&mlxsw_sp1_pci_driver);
5149
	if (err)
5150
		goto err_sp1_pci_driver_register;
5151

5152
	err = mlxsw_pci_driver_register(&mlxsw_sp2_pci_driver);
5153
	if (err)
5154
		goto err_sp2_pci_driver_register;
5155

5156 5157
	return 0;

5158 5159 5160 5161 5162 5163 5164
err_sp2_pci_driver_register:
	mlxsw_pci_driver_unregister(&mlxsw_sp2_pci_driver);
err_sp1_pci_driver_register:
	mlxsw_core_driver_unregister(&mlxsw_sp2_driver);
err_sp2_core_driver_register:
	mlxsw_core_driver_unregister(&mlxsw_sp1_driver);
err_sp1_core_driver_register:
5165
	unregister_inet6addr_notifier(&mlxsw_sp_inet6addr_nb);
5166
	unregister_inet6addr_validator_notifier(&mlxsw_sp_inet6addr_valid_nb);
5167
	unregister_inetaddr_notifier(&mlxsw_sp_inetaddr_nb);
5168
	unregister_inetaddr_validator_notifier(&mlxsw_sp_inetaddr_valid_nb);
5169 5170 5171 5172 5173
	return err;
}

static void __exit mlxsw_sp_module_exit(void)
{
5174 5175 5176 5177
	mlxsw_pci_driver_unregister(&mlxsw_sp2_pci_driver);
	mlxsw_pci_driver_unregister(&mlxsw_sp1_pci_driver);
	mlxsw_core_driver_unregister(&mlxsw_sp2_driver);
	mlxsw_core_driver_unregister(&mlxsw_sp1_driver);
5178
	unregister_inet6addr_notifier(&mlxsw_sp_inet6addr_nb);
5179
	unregister_inet6addr_validator_notifier(&mlxsw_sp_inet6addr_valid_nb);
5180
	unregister_inetaddr_notifier(&mlxsw_sp_inetaddr_nb);
5181
	unregister_inetaddr_validator_notifier(&mlxsw_sp_inetaddr_valid_nb);
5182 5183 5184 5185 5186 5187 5188 5189
}

module_init(mlxsw_sp_module_init);
module_exit(mlxsw_sp_module_exit);

MODULE_LICENSE("Dual BSD/GPL");
MODULE_AUTHOR("Jiri Pirko <jiri@mellanox.com>");
MODULE_DESCRIPTION("Mellanox Spectrum driver");
5190 5191
MODULE_DEVICE_TABLE(pci, mlxsw_sp1_pci_id_table);
MODULE_DEVICE_TABLE(pci, mlxsw_sp2_pci_id_table);
5192
MODULE_FIRMWARE(MLXSW_SP1_FW_FILENAME);