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From 92cf25fe454dd42136e717ba679a9dba740db0e7 Mon Sep 17 00:00:00 2001
From: Biwen Li <biwen.li@nxp.com>
Date: Tue, 30 Oct 2018 18:26:18 +0800
Subject: [PATCH 10/40] dpaa2-mac-phy: support layerscape
This is an integrated patch of dpaa2-mac-phy for
layerscape
Signed-off-by: Alex Marginean <alexandru.marginean@nxp.com>
Signed-off-by: Bogdan Hamciuc <bogdan.hamciuc@nxp.com>
Signed-off-by: Bogdan Purcareata <bogdan.purcareata@nxp.com>
Signed-off-by: Constantin Tudor <constantin.tudor@nxp.com>
Signed-off-by: Ioana Radulescu <ruxandra.radulescu@nxp.com>
Signed-off-by: Itai Katz <itai.katz@freescale.com>
Signed-off-by: J. German Rivera <German.Rivera@freescale.com>
Signed-off-by: Razvan Stefanescu <razvan.stefanescu@nxp.com>
Signed-off-by: Stuart Yoder <stuart.yoder@freescale.com>
Signed-off-by: Biwen Li <biwen.li@nxp.com>
---
drivers/staging/fsl-dpaa2/mac/Kconfig | 23 +
drivers/staging/fsl-dpaa2/mac/Makefile | 10 +
drivers/staging/fsl-dpaa2/mac/dpmac-cmd.h | 172 ++++++
drivers/staging/fsl-dpaa2/mac/dpmac.c | 619 ++++++++++++++++++++
drivers/staging/fsl-dpaa2/mac/dpmac.h | 342 +++++++++++
drivers/staging/fsl-dpaa2/mac/mac.c | 672 ++++++++++++++++++++++
6 files changed, 1838 insertions(+)
create mode 100644 drivers/staging/fsl-dpaa2/mac/Kconfig
create mode 100644 drivers/staging/fsl-dpaa2/mac/Makefile
create mode 100644 drivers/staging/fsl-dpaa2/mac/dpmac-cmd.h
create mode 100644 drivers/staging/fsl-dpaa2/mac/dpmac.c
create mode 100644 drivers/staging/fsl-dpaa2/mac/dpmac.h
create mode 100644 drivers/staging/fsl-dpaa2/mac/mac.c
--- /dev/null
+++ b/drivers/staging/fsl-dpaa2/mac/Kconfig
@@ -0,0 +1,23 @@
+config FSL_DPAA2_MAC
+ tristate "DPAA2 MAC / PHY interface"
+ depends on FSL_MC_BUS && FSL_DPAA2
+ select MDIO_BUS_MUX_MMIOREG
+ select FSL_XGMAC_MDIO
+ select FIXED_PHY
+ ---help---
+ Prototype driver for DPAA2 MAC / PHY interface object.
+ This driver works as a proxy between phylib including phy drivers and
+ the MC firmware. It receives updates on link state changes from PHY
+ lib and forwards them to MC and receives interrupt from MC whenever
+ a request is made to change the link state.
+
+
+config FSL_DPAA2_MAC_NETDEVS
+ bool "Expose net interfaces for PHYs"
+ default n
+ depends on FSL_DPAA2_MAC
+ ---help---
+ Exposes macX net interfaces which allow direct control over MACs and
+ PHYs.
+ .
+ Leave disabled if unsure.
--- /dev/null
+++ b/drivers/staging/fsl-dpaa2/mac/Makefile
@@ -0,0 +1,10 @@
+
+obj-$(CONFIG_FSL_DPAA2_MAC) += dpaa2-mac.o
+
+dpaa2-mac-objs := mac.o dpmac.o
+
+all:
+ make -C /lib/modules/$(shell uname -r)/build M=$(PWD) modules
+
+clean:
+ make -C /lib/modules/$(shell uname -r)/build M=$(PWD) clean
--- /dev/null
+++ b/drivers/staging/fsl-dpaa2/mac/dpmac-cmd.h
@@ -0,0 +1,172 @@
+/* Copyright 2013-2016 Freescale Semiconductor Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * * Neither the name of the above-listed copyright holders nor the
+ * names of any contributors may be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ *
+ * ALTERNATIVELY, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") as published by the Free Software
+ * Foundation, either version 2 of that License or (at your option) any
+ * later version.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+#ifndef _FSL_DPMAC_CMD_H
+#define _FSL_DPMAC_CMD_H
+
+/* DPMAC Version */
+#define DPMAC_VER_MAJOR 4
+#define DPMAC_VER_MINOR 2
+#define DPMAC_CMD_BASE_VERSION 1
+#define DPMAC_CMD_ID_OFFSET 4
+
+#define DPMAC_CMD(id) (((id) << DPMAC_CMD_ID_OFFSET) | DPMAC_CMD_BASE_VERSION)
+
+/* Command IDs */
+#define DPMAC_CMDID_CLOSE DPMAC_CMD(0x800)
+#define DPMAC_CMDID_OPEN DPMAC_CMD(0x80c)
+#define DPMAC_CMDID_CREATE DPMAC_CMD(0x90c)
+#define DPMAC_CMDID_DESTROY DPMAC_CMD(0x98c)
+#define DPMAC_CMDID_GET_API_VERSION DPMAC_CMD(0xa0c)
+
+#define DPMAC_CMDID_GET_ATTR DPMAC_CMD(0x004)
+#define DPMAC_CMDID_RESET DPMAC_CMD(0x005)
+
+#define DPMAC_CMDID_SET_IRQ_ENABLE DPMAC_CMD(0x012)
+#define DPMAC_CMDID_GET_IRQ_ENABLE DPMAC_CMD(0x013)
+#define DPMAC_CMDID_SET_IRQ_MASK DPMAC_CMD(0x014)
+#define DPMAC_CMDID_GET_IRQ_MASK DPMAC_CMD(0x015)
+#define DPMAC_CMDID_GET_IRQ_STATUS DPMAC_CMD(0x016)
+#define DPMAC_CMDID_CLEAR_IRQ_STATUS DPMAC_CMD(0x017)
+
+#define DPMAC_CMDID_GET_LINK_CFG DPMAC_CMD(0x0c2)
+#define DPMAC_CMDID_SET_LINK_STATE DPMAC_CMD(0x0c3)
+#define DPMAC_CMDID_GET_COUNTER DPMAC_CMD(0x0c4)
+
+#define DPMAC_CMDID_SET_PORT_MAC_ADDR DPMAC_CMD(0x0c5)
+
+/* Macros for accessing command fields smaller than 1byte */
+#define DPMAC_MASK(field) \
+ GENMASK(DPMAC_##field##_SHIFT + DPMAC_##field##_SIZE - 1, \
+ DPMAC_##field##_SHIFT)
+#define dpmac_set_field(var, field, val) \
+ ((var) |= (((val) << DPMAC_##field##_SHIFT) & DPMAC_MASK(field)))
+#define dpmac_get_field(var, field) \
+ (((var) & DPMAC_MASK(field)) >> DPMAC_##field##_SHIFT)
+
+struct dpmac_cmd_open {
+ u32 dpmac_id;
+};
+
+struct dpmac_cmd_create {
+ u32 mac_id;
+};
+
+struct dpmac_cmd_destroy {
+ u32 dpmac_id;
+};
+
+struct dpmac_cmd_set_irq_enable {
+ u8 enable;
+ u8 pad[3];
+ u8 irq_index;
+};
+
+struct dpmac_cmd_get_irq_enable {
+ u32 pad;
+ u8 irq_index;
+};
+
+struct dpmac_rsp_get_irq_enable {
+ u8 enabled;
+};
+
+struct dpmac_cmd_set_irq_mask {
+ u32 mask;
+ u8 irq_index;
+};
+
+struct dpmac_cmd_get_irq_mask {
+ u32 pad;
+ u8 irq_index;
+};
+
+struct dpmac_rsp_get_irq_mask {
+ u32 mask;
+};
+
+struct dpmac_cmd_get_irq_status {
+ u32 status;
+ u8 irq_index;
+};
+
+struct dpmac_rsp_get_irq_status {
+ u32 status;
+};
+
+struct dpmac_cmd_clear_irq_status {
+ u32 status;
+ u8 irq_index;
+};
+
+struct dpmac_rsp_get_attributes {
+ u8 eth_if;
+ u8 link_type;
+ u16 id;
+ u32 max_rate;
+};
+
+struct dpmac_rsp_get_link_cfg {
+ u64 options;
+ u32 rate;
+};
+
+#define DPMAC_STATE_SIZE 1
+#define DPMAC_STATE_SHIFT 0
+
+struct dpmac_cmd_set_link_state {
+ u64 options;
+ u32 rate;
+ u32 pad;
+ /* only least significant bit is valid */
+ u8 up;
+};
+
+struct dpmac_cmd_get_counter {
+ u8 type;
+};
+
+struct dpmac_rsp_get_counter {
+ u64 pad;
+ u64 counter;
+};
+
+struct dpmac_rsp_get_api_version {
+ u16 major;
+ u16 minor;
+};
+
+struct dpmac_cmd_set_port_mac_addr {
+ u8 pad[2];
+ u8 addr[6];
+};
+
+#endif /* _FSL_DPMAC_CMD_H */
--- /dev/null
+++ b/drivers/staging/fsl-dpaa2/mac/dpmac.c
@@ -0,0 +1,619 @@
+/* Copyright 2013-2016 Freescale Semiconductor Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * * Neither the name of the above-listed copyright holders nor the
+ * names of any contributors may be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ *
+ * ALTERNATIVELY, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") as published by the Free Software
+ * Foundation, either version 2 of that License or (at your option) any
+ * later version.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+#include <linux/fsl/mc.h>
+#include "dpmac.h"
+#include "dpmac-cmd.h"
+
+/**
+ * dpmac_open() - Open a control session for the specified object.
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @dpmac_id: DPMAC unique ID
+ * @token: Returned token; use in subsequent API calls
+ *
+ * This function can be used to open a control session for an
+ * already created object; an object may have been declared in
+ * the DPL or by calling the dpmac_create function.
+ * This function returns a unique authentication token,
+ * associated with the specific object ID and the specific MC
+ * portal; this token must be used in all subsequent commands for
+ * this specific object
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpmac_open(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ int dpmac_id,
+ u16 *token)
+{
+ struct dpmac_cmd_open *cmd_params;
+ struct fsl_mc_command cmd = { 0 };
+ int err;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPMAC_CMDID_OPEN,
+ cmd_flags,
+ 0);
+ cmd_params = (struct dpmac_cmd_open *)cmd.params;
+ cmd_params->dpmac_id = cpu_to_le32(dpmac_id);
+
+ /* send command to mc*/
+ err = mc_send_command(mc_io, &cmd);
+ if (err)
+ return err;
+
+ /* retrieve response parameters */
+ *token = mc_cmd_hdr_read_token(&cmd);
+
+ return err;
+}
+
+/**
+ * dpmac_close() - Close the control session of the object
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPMAC object
+ *
+ * After this function is called, no further operations are
+ * allowed on the object without opening a new control session.
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpmac_close(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token)
+{
+ struct fsl_mc_command cmd = { 0 };
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPMAC_CMDID_CLOSE, cmd_flags,
+ token);
+
+ /* send command to mc*/
+ return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dpmac_create() - Create the DPMAC object.
+ * @mc_io: Pointer to MC portal's I/O object
+ * @dprc_token: Parent container token; '0' for default container
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @cfg: Configuration structure
+ * @obj_id: Returned object id
+ *
+ * Create the DPMAC object, allocate required resources and
+ * perform required initialization.
+ *
+ * The function accepts an authentication token of a parent
+ * container that this object should be assigned to. The token
+ * can be '0' so the object will be assigned to the default container.
+ * The newly created object can be opened with the returned
+ * object id and using the container's associated tokens and MC portals.
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpmac_create(struct fsl_mc_io *mc_io,
+ u16 dprc_token,
+ u32 cmd_flags,
+ const struct dpmac_cfg *cfg,
+ u32 *obj_id)
+{
+ struct dpmac_cmd_create *cmd_params;
+ struct fsl_mc_command cmd = { 0 };
+ int err;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPMAC_CMDID_CREATE,
+ cmd_flags,
+ dprc_token);
+ cmd_params = (struct dpmac_cmd_create *)cmd.params;
+ cmd_params->mac_id = cpu_to_le32(cfg->mac_id);
+
+ /* send command to mc*/
+ err = mc_send_command(mc_io, &cmd);
+ if (err)
+ return err;
+
+ /* retrieve response parameters */
+ *obj_id = mc_cmd_read_object_id(&cmd);
+
+ return 0;
+}
+
+/**
+ * dpmac_destroy() - Destroy the DPMAC object and release all its resources.
+ * @mc_io: Pointer to MC portal's I/O object
+ * @dprc_token: Parent container token; '0' for default container
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @object_id: The object id; it must be a valid id within the container that
+ * created this object;
+ *
+ * The function accepts the authentication token of the parent container that
+ * created the object (not the one that currently owns the object). The object
+ * is searched within parent using the provided 'object_id'.
+ * All tokens to the object must be closed before calling destroy.
+ *
+ * Return: '0' on Success; error code otherwise.
+ */
+int dpmac_destroy(struct fsl_mc_io *mc_io,
+ u16 dprc_token,
+ u32 cmd_flags,
+ u32 object_id)
+{
+ struct dpmac_cmd_destroy *cmd_params;
+ struct fsl_mc_command cmd = { 0 };
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPMAC_CMDID_DESTROY,
+ cmd_flags,
+ dprc_token);
+ cmd_params = (struct dpmac_cmd_destroy *)cmd.params;
+ cmd_params->dpmac_id = cpu_to_le32(object_id);
+
+ /* send command to mc*/
+ return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dpmac_set_irq_enable() - Set overall interrupt state.
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPMAC object
+ * @irq_index: The interrupt index to configure
+ * @en: Interrupt state - enable = 1, disable = 0
+ *
+ * Allows GPP software to control when interrupts are generated.
+ * Each interrupt can have up to 32 causes. The enable/disable control's the
+ * overall interrupt state. if the interrupt is disabled no causes will cause
+ * an interrupt.
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpmac_set_irq_enable(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u8 irq_index,
+ u8 en)
+{
+ struct dpmac_cmd_set_irq_enable *cmd_params;
+ struct fsl_mc_command cmd = { 0 };
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPMAC_CMDID_SET_IRQ_ENABLE,
+ cmd_flags,
+ token);
+ cmd_params = (struct dpmac_cmd_set_irq_enable *)cmd.params;
+ cmd_params->irq_index = irq_index;
+ cmd_params->enable = en;
+
+ /* send command to mc*/
+ return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dpmac_get_irq_enable() - Get overall interrupt state
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPMAC object
+ * @irq_index: The interrupt index to configure
+ * @en: Returned interrupt state - enable = 1, disable = 0
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpmac_get_irq_enable(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u8 irq_index,
+ u8 *en)
+{
+ struct dpmac_cmd_get_irq_enable *cmd_params;
+ struct dpmac_rsp_get_irq_enable *rsp_params;
+ struct fsl_mc_command cmd = { 0 };
+ int err;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPMAC_CMDID_GET_IRQ_ENABLE,
+ cmd_flags,
+ token);
+ cmd_params = (struct dpmac_cmd_get_irq_enable *)cmd.params;
+ cmd_params->irq_index = irq_index;
+
+ /* send command to mc*/
+ err = mc_send_command(mc_io, &cmd);
+ if (err)
+ return err;
+
+ /* retrieve response parameters */
+ rsp_params = (struct dpmac_rsp_get_irq_enable *)cmd.params;
+ *en = rsp_params->enabled;
+
+ return 0;
+}
+
+/**
+ * dpmac_set_irq_mask() - Set interrupt mask.
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPMAC object
+ * @irq_index: The interrupt index to configure
+ * @mask: Event mask to trigger interrupt;
+ * each bit:
+ * 0 = ignore event
+ * 1 = consider event for asserting IRQ
+ *
+ * Every interrupt can have up to 32 causes and the interrupt model supports
+ * masking/unmasking each cause independently
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpmac_set_irq_mask(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u8 irq_index,
+ u32 mask)
+{
+ struct dpmac_cmd_set_irq_mask *cmd_params;
+ struct fsl_mc_command cmd = { 0 };
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPMAC_CMDID_SET_IRQ_MASK,
+ cmd_flags,
+ token);
+ cmd_params = (struct dpmac_cmd_set_irq_mask *)cmd.params;
+ cmd_params->mask = cpu_to_le32(mask);
+ cmd_params->irq_index = irq_index;
+
+ /* send command to mc*/
+ return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dpmac_get_irq_mask() - Get interrupt mask.
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPMAC object
+ * @irq_index: The interrupt index to configure
+ * @mask: Returned event mask to trigger interrupt
+ *
+ * Every interrupt can have up to 32 causes and the interrupt model supports
+ * masking/unmasking each cause independently
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpmac_get_irq_mask(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u8 irq_index,
+ u32 *mask)
+{
+ struct dpmac_cmd_get_irq_mask *cmd_params;
+ struct dpmac_rsp_get_irq_mask *rsp_params;
+ struct fsl_mc_command cmd = { 0 };
+ int err;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPMAC_CMDID_GET_IRQ_MASK,
+ cmd_flags,
+ token);
+ cmd_params = (struct dpmac_cmd_get_irq_mask *)cmd.params;
+ cmd_params->irq_index = irq_index;
+
+ /* send command to mc*/
+ err = mc_send_command(mc_io, &cmd);
+ if (err)
+ return err;
+
+ /* retrieve response parameters */
+ rsp_params = (struct dpmac_rsp_get_irq_mask *)cmd.params;
+ *mask = le32_to_cpu(rsp_params->mask);
+
+ return 0;
+}
+
+/**
+ * dpmac_get_irq_status() - Get the current status of any pending interrupts.
+ *
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPMAC object
+ * @irq_index: The interrupt index to configure
+ * @status: Returned interrupts status - one bit per cause:
+ * 0 = no interrupt pending
+ * 1 = interrupt pending
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpmac_get_irq_status(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u8 irq_index,
+ u32 *status)
+{
+ struct dpmac_cmd_get_irq_status *cmd_params;
+ struct dpmac_rsp_get_irq_status *rsp_params;
+ struct fsl_mc_command cmd = { 0 };
+ int err;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPMAC_CMDID_GET_IRQ_STATUS,
+ cmd_flags,
+ token);
+ cmd_params = (struct dpmac_cmd_get_irq_status *)cmd.params;
+ cmd_params->status = cpu_to_le32(*status);
+ cmd_params->irq_index = irq_index;
+
+ /* send command to mc*/
+ err = mc_send_command(mc_io, &cmd);
+ if (err)
+ return err;
+
+ /* retrieve response parameters */
+ rsp_params = (struct dpmac_rsp_get_irq_status *)cmd.params;
+ *status = le32_to_cpu(rsp_params->status);
+
+ return 0;
+}
+
+/**
+ * dpmac_clear_irq_status() - Clear a pending interrupt's status
+ *
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPMAC object
+ * @irq_index: The interrupt index to configure
+ * @status: Bits to clear (W1C) - one bit per cause:
+ * 0 = don't change
+ * 1 = clear status bit
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpmac_clear_irq_status(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u8 irq_index,
+ u32 status)
+{
+ struct dpmac_cmd_clear_irq_status *cmd_params;
+ struct fsl_mc_command cmd = { 0 };
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPMAC_CMDID_CLEAR_IRQ_STATUS,
+ cmd_flags,
+ token);
+ cmd_params = (struct dpmac_cmd_clear_irq_status *)cmd.params;
+ cmd_params->status = cpu_to_le32(status);
+ cmd_params->irq_index = irq_index;
+
+ /* send command to mc*/
+ return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dpmac_get_attributes - Retrieve DPMAC attributes.
+ *
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPMAC object
+ * @attr: Returned object's attributes
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpmac_get_attributes(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ struct dpmac_attr *attr)
+{
+ struct dpmac_rsp_get_attributes *rsp_params;
+ struct fsl_mc_command cmd = { 0 };
+ int err;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPMAC_CMDID_GET_ATTR,
+ cmd_flags,
+ token);
+
+ /* send command to mc*/
+ err = mc_send_command(mc_io, &cmd);
+ if (err)
+ return err;
+
+ /* retrieve response parameters */
+ rsp_params = (struct dpmac_rsp_get_attributes *)cmd.params;
+ attr->eth_if = rsp_params->eth_if;
+ attr->link_type = rsp_params->link_type;
+ attr->id = le16_to_cpu(rsp_params->id);
+ attr->max_rate = le32_to_cpu(rsp_params->max_rate);
+
+ return 0;
+}
+
+/**
+ * dpmac_get_link_cfg() - Get Ethernet link configuration
+ * @mc_io: Pointer to opaque I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPMAC object
+ * @cfg: Returned structure with the link configuration
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpmac_get_link_cfg(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ struct dpmac_link_cfg *cfg)
+{
+ struct dpmac_rsp_get_link_cfg *rsp_params;
+ struct fsl_mc_command cmd = { 0 };
+ int err = 0;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPMAC_CMDID_GET_LINK_CFG,
+ cmd_flags,
+ token);
+
+ /* send command to mc*/
+ err = mc_send_command(mc_io, &cmd);
+ if (err)
+ return err;
+
+ rsp_params = (struct dpmac_rsp_get_link_cfg *)cmd.params;
+ cfg->options = le64_to_cpu(rsp_params->options);
+ cfg->rate = le32_to_cpu(rsp_params->rate);
+
+ return 0;
+}
+
+/**
+ * dpmac_set_link_state() - Set the Ethernet link status
+ * @mc_io: Pointer to opaque I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPMAC object
+ * @link_state: Link state configuration
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpmac_set_link_state(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ struct dpmac_link_state *link_state)
+{
+ struct dpmac_cmd_set_link_state *cmd_params;
+ struct fsl_mc_command cmd = { 0 };
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPMAC_CMDID_SET_LINK_STATE,
+ cmd_flags,
+ token);
+ cmd_params = (struct dpmac_cmd_set_link_state *)cmd.params;
+ cmd_params->options = cpu_to_le64(link_state->options);
+ cmd_params->rate = cpu_to_le32(link_state->rate);
+ cmd_params->up = dpmac_get_field(link_state->up, STATE);
+
+ /* send command to mc*/
+ return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dpmac_get_counter() - Read a specific DPMAC counter
+ * @mc_io: Pointer to opaque I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPMAC object
+ * @type: The requested counter
+ * @counter: Returned counter value
+ *
+ * Return: The requested counter; '0' otherwise.
+ */
+int dpmac_get_counter(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ enum dpmac_counter type,
+ u64 *counter)
+{
+ struct dpmac_cmd_get_counter *dpmac_cmd;
+ struct dpmac_rsp_get_counter *dpmac_rsp;
+ struct fsl_mc_command cmd = { 0 };
+ int err = 0;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPMAC_CMDID_GET_COUNTER,
+ cmd_flags,
+ token);
+ dpmac_cmd = (struct dpmac_cmd_get_counter *)cmd.params;
+ dpmac_cmd->type = type;
+
+ /* send command to mc*/
+ err = mc_send_command(mc_io, &cmd);
+ if (err)
+ return err;
+
+ dpmac_rsp = (struct dpmac_rsp_get_counter *)cmd.params;
+ *counter = le64_to_cpu(dpmac_rsp->counter);
+
+ return 0;
+}
+
+/* untested */
+int dpmac_set_port_mac_addr(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ const u8 addr[6])
+{
+ struct dpmac_cmd_set_port_mac_addr *dpmac_cmd;
+ struct fsl_mc_command cmd = { 0 };
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPMAC_CMDID_SET_PORT_MAC_ADDR,
+ cmd_flags,
+ token);
+ dpmac_cmd = (struct dpmac_cmd_set_port_mac_addr *)cmd.params;
+ dpmac_cmd->addr[0] = addr[5];
+ dpmac_cmd->addr[1] = addr[4];
+ dpmac_cmd->addr[2] = addr[3];
+ dpmac_cmd->addr[3] = addr[2];
+ dpmac_cmd->addr[4] = addr[1];
+ dpmac_cmd->addr[5] = addr[0];
+
+ /* send command to mc*/
+ return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dpmac_get_api_version() - Get Data Path MAC version
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @major_ver: Major version of data path mac API
+ * @minor_ver: Minor version of data path mac API
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpmac_get_api_version(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 *major_ver,
+ u16 *minor_ver)
+{
+ struct dpmac_rsp_get_api_version *rsp_params;
+ struct fsl_mc_command cmd = { 0 };
+ int err;
+
+ cmd.header = mc_encode_cmd_header(DPMAC_CMDID_GET_API_VERSION,
+ cmd_flags,
+ 0);
+
+ err = mc_send_command(mc_io, &cmd);
+ if (err)
+ return err;
+
+ rsp_params = (struct dpmac_rsp_get_api_version *)cmd.params;
+ *major_ver = le16_to_cpu(rsp_params->major);
+ *minor_ver = le16_to_cpu(rsp_params->minor);
+
+ return 0;
+}
--- /dev/null
+++ b/drivers/staging/fsl-dpaa2/mac/dpmac.h
@@ -0,0 +1,342 @@
+/* Copyright 2013-2016 Freescale Semiconductor Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * * Neither the name of the above-listed copyright holders nor the
+ * names of any contributors may be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ *
+ * ALTERNATIVELY, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") as published by the Free Software
+ * Foundation, either version 2 of that License or (at your option) any
+ * later version.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+#ifndef __FSL_DPMAC_H
+#define __FSL_DPMAC_H
+
+/* Data Path MAC API
+ * Contains initialization APIs and runtime control APIs for DPMAC
+ */
+
+struct fsl_mc_io;
+
+int dpmac_open(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ int dpmac_id,
+ u16 *token);
+
+int dpmac_close(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token);
+
+/**
+ * enum dpmac_link_type - DPMAC link type
+ * @DPMAC_LINK_TYPE_NONE: No link
+ * @DPMAC_LINK_TYPE_FIXED: Link is fixed type
+ * @DPMAC_LINK_TYPE_PHY: Link by PHY ID
+ * @DPMAC_LINK_TYPE_BACKPLANE: Backplane link type
+ */
+enum dpmac_link_type {
+ DPMAC_LINK_TYPE_NONE,
+ DPMAC_LINK_TYPE_FIXED,
+ DPMAC_LINK_TYPE_PHY,
+ DPMAC_LINK_TYPE_BACKPLANE
+};
+
+/**
+ * enum dpmac_eth_if - DPMAC Ethrnet interface
+ * @DPMAC_ETH_IF_MII: MII interface
+ * @DPMAC_ETH_IF_RMII: RMII interface
+ * @DPMAC_ETH_IF_SMII: SMII interface
+ * @DPMAC_ETH_IF_GMII: GMII interface
+ * @DPMAC_ETH_IF_RGMII: RGMII interface
+ * @DPMAC_ETH_IF_SGMII: SGMII interface
+ * @DPMAC_ETH_IF_QSGMII: QSGMII interface
+ * @DPMAC_ETH_IF_XAUI: XAUI interface
+ * @DPMAC_ETH_IF_XFI: XFI interface
+ */
+enum dpmac_eth_if {
+ DPMAC_ETH_IF_MII,
+ DPMAC_ETH_IF_RMII,
+ DPMAC_ETH_IF_SMII,
+ DPMAC_ETH_IF_GMII,
+ DPMAC_ETH_IF_RGMII,
+ DPMAC_ETH_IF_SGMII,
+ DPMAC_ETH_IF_QSGMII,
+ DPMAC_ETH_IF_XAUI,
+ DPMAC_ETH_IF_XFI
+};
+
+/**
+ * struct dpmac_cfg - Structure representing DPMAC configuration
+ * @mac_id: Represents the Hardware MAC ID; in case of multiple WRIOP,
+ * the MAC IDs are continuous.
+ * For example: 2 WRIOPs, 16 MACs in each:
+ * MAC IDs for the 1st WRIOP: 1-16,
+ * MAC IDs for the 2nd WRIOP: 17-32.
+ */
+struct dpmac_cfg {
+ u16 mac_id;
+};
+
+int dpmac_create(struct fsl_mc_io *mc_io,
+ u16 dprc_token,
+ u32 cmd_flags,
+ const struct dpmac_cfg *cfg,
+ u32 *obj_id);
+
+int dpmac_destroy(struct fsl_mc_io *mc_io,
+ u16 dprc_token,
+ u32 cmd_flags,
+ u32 object_id);
+
+/**
+ * DPMAC IRQ Index and Events
+ */
+
+/**
+ * IRQ index
+ */
+#define DPMAC_IRQ_INDEX 0
+/**
+ * IRQ event - indicates a change in link state
+ */
+#define DPMAC_IRQ_EVENT_LINK_CFG_REQ 0x00000001
+/**
+ * IRQ event - Indicates that the link state changed
+ */
+#define DPMAC_IRQ_EVENT_LINK_CHANGED 0x00000002
+
+int dpmac_set_irq_enable(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u8 irq_index,
+ u8 en);
+
+int dpmac_get_irq_enable(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u8 irq_index,
+ u8 *en);
+
+int dpmac_set_irq_mask(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u8 irq_index,
+ u32 mask);
+
+int dpmac_get_irq_mask(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u8 irq_index,
+ u32 *mask);
+
+int dpmac_get_irq_status(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u8 irq_index,
+ u32 *status);
+
+int dpmac_clear_irq_status(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u8 irq_index,
+ u32 status);
+
+/**
+ * struct dpmac_attr - Structure representing DPMAC attributes
+ * @id: DPMAC object ID
+ * @max_rate: Maximum supported rate - in Mbps
+ * @eth_if: Ethernet interface
+ * @link_type: link type
+ */
+struct dpmac_attr {
+ u16 id;
+ u32 max_rate;
+ enum dpmac_eth_if eth_if;
+ enum dpmac_link_type link_type;
+};
+
+int dpmac_get_attributes(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ struct dpmac_attr *attr);
+
+/**
+ * DPMAC link configuration/state options
+ */
+
+/**
+ * Enable auto-negotiation
+ */
+#define DPMAC_LINK_OPT_AUTONEG 0x0000000000000001ULL
+/**
+ * Enable half-duplex mode
+ */
+#define DPMAC_LINK_OPT_HALF_DUPLEX 0x0000000000000002ULL
+/**
+ * Enable pause frames
+ */
+#define DPMAC_LINK_OPT_PAUSE 0x0000000000000004ULL
+/**
+ * Enable a-symmetric pause frames
+ */
+#define DPMAC_LINK_OPT_ASYM_PAUSE 0x0000000000000008ULL
+
+/**
+ * struct dpmac_link_cfg - Structure representing DPMAC link configuration
+ * @rate: Link's rate - in Mbps
+ * @options: Enable/Disable DPMAC link cfg features (bitmap)
+ */
+struct dpmac_link_cfg {
+ u32 rate;
+ u64 options;
+};
+
+int dpmac_get_link_cfg(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ struct dpmac_link_cfg *cfg);
+
+/**
+ * struct dpmac_link_state - DPMAC link configuration request
+ * @rate: Rate in Mbps
+ * @options: Enable/Disable DPMAC link cfg features (bitmap)
+ * @up: Link state
+ */
+struct dpmac_link_state {
+ u32 rate;
+ u64 options;
+ int up;
+};
+
+int dpmac_set_link_state(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ struct dpmac_link_state *link_state);
+
+/**
+ * enum dpmac_counter - DPMAC counter types
+ * @DPMAC_CNT_ING_FRAME_64: counts 64-bytes frames, good or bad.
+ * @DPMAC_CNT_ING_FRAME_127: counts 65- to 127-bytes frames, good or bad.
+ * @DPMAC_CNT_ING_FRAME_255: counts 128- to 255-bytes frames, good or bad.
+ * @DPMAC_CNT_ING_FRAME_511: counts 256- to 511-bytes frames, good or bad.
+ * @DPMAC_CNT_ING_FRAME_1023: counts 512- to 1023-bytes frames, good or bad.
+ * @DPMAC_CNT_ING_FRAME_1518: counts 1024- to 1518-bytes frames, good or bad.
+ * @DPMAC_CNT_ING_FRAME_1519_MAX: counts 1519-bytes frames and larger
+ * (up to max frame length specified),
+ * good or bad.
+ * @DPMAC_CNT_ING_FRAG: counts frames which are shorter than 64 bytes received
+ * with a wrong CRC
+ * @DPMAC_CNT_ING_JABBER: counts frames longer than the maximum frame length
+ * specified, with a bad frame check sequence.
+ * @DPMAC_CNT_ING_FRAME_DISCARD: counts dropped frames due to internal errors.
+ * Occurs when a receive FIFO overflows.
+ * Includes also frames truncated as a result of
+ * the receive FIFO overflow.
+ * @DPMAC_CNT_ING_ALIGN_ERR: counts frames with an alignment error
+ * (optional used for wrong SFD).
+ * @DPMAC_CNT_EGR_UNDERSIZED: counts frames transmitted that was less than 64
+ * bytes long with a good CRC.
+ * @DPMAC_CNT_ING_OVERSIZED: counts frames longer than the maximum frame length
+ * specified, with a good frame check sequence.
+ * @DPMAC_CNT_ING_VALID_PAUSE_FRAME: counts valid pause frames (regular and PFC)
+ * @DPMAC_CNT_EGR_VALID_PAUSE_FRAME: counts valid pause frames transmitted
+ * (regular and PFC).
+ * @DPMAC_CNT_ING_BYTE: counts bytes received except preamble for all valid
+ * frames and valid pause frames.
+ * @DPMAC_CNT_ING_MCAST_FRAME: counts received multicast frames.
+ * @DPMAC_CNT_ING_BCAST_FRAME: counts received broadcast frames.
+ * @DPMAC_CNT_ING_ALL_FRAME: counts each good or bad frames received.
+ * @DPMAC_CNT_ING_UCAST_FRAME: counts received unicast frames.
+ * @DPMAC_CNT_ING_ERR_FRAME: counts frames received with an error
+ * (except for undersized/fragment frame).
+ * @DPMAC_CNT_EGR_BYTE: counts bytes transmitted except preamble for all valid
+ * frames and valid pause frames transmitted.
+ * @DPMAC_CNT_EGR_MCAST_FRAME: counts transmitted multicast frames.
+ * @DPMAC_CNT_EGR_BCAST_FRAME: counts transmitted broadcast frames.
+ * @DPMAC_CNT_EGR_UCAST_FRAME: counts transmitted unicast frames.
+ * @DPMAC_CNT_EGR_ERR_FRAME: counts frames transmitted with an error.
+ * @DPMAC_CNT_ING_GOOD_FRAME: counts frames received without error, including
+ * pause frames.
+ * @DPMAC_CNT_ENG_GOOD_FRAME: counts frames transmitted without error, including
+ * pause frames.
+ */
+enum dpmac_counter {
+ DPMAC_CNT_ING_FRAME_64,
+ DPMAC_CNT_ING_FRAME_127,
+ DPMAC_CNT_ING_FRAME_255,
+ DPMAC_CNT_ING_FRAME_511,
+ DPMAC_CNT_ING_FRAME_1023,
+ DPMAC_CNT_ING_FRAME_1518,
+ DPMAC_CNT_ING_FRAME_1519_MAX,
+ DPMAC_CNT_ING_FRAG,
+ DPMAC_CNT_ING_JABBER,
+ DPMAC_CNT_ING_FRAME_DISCARD,
+ DPMAC_CNT_ING_ALIGN_ERR,
+ DPMAC_CNT_EGR_UNDERSIZED,
+ DPMAC_CNT_ING_OVERSIZED,
+ DPMAC_CNT_ING_VALID_PAUSE_FRAME,
+ DPMAC_CNT_EGR_VALID_PAUSE_FRAME,
+ DPMAC_CNT_ING_BYTE,
+ DPMAC_CNT_ING_MCAST_FRAME,
+ DPMAC_CNT_ING_BCAST_FRAME,
+ DPMAC_CNT_ING_ALL_FRAME,
+ DPMAC_CNT_ING_UCAST_FRAME,
+ DPMAC_CNT_ING_ERR_FRAME,
+ DPMAC_CNT_EGR_BYTE,
+ DPMAC_CNT_EGR_MCAST_FRAME,
+ DPMAC_CNT_EGR_BCAST_FRAME,
+ DPMAC_CNT_EGR_UCAST_FRAME,
+ DPMAC_CNT_EGR_ERR_FRAME,
+ DPMAC_CNT_ING_GOOD_FRAME,
+ DPMAC_CNT_ENG_GOOD_FRAME
+};
+
+int dpmac_get_counter(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ enum dpmac_counter type,
+ u64 *counter);
+
+/**
+ * dpmac_set_port_mac_addr() - Set a MAC address associated with the physical
+ * port. This is not used for filtering, MAC is always in
+ * promiscuous mode, it is passed to DPNIs through DPNI API for
+ * application used.
+ * @mc_io: Pointer to opaque I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPMAC object
+ * @addr: MAC address to set
+ *
+ * Return: The requested counter; '0' otherwise.
+ */
+int dpmac_set_port_mac_addr(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ const u8 addr[6]);
+
+int dpmac_get_api_version(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 *major_ver,
+ u16 *minor_ver);
+
+#endif /* __FSL_DPMAC_H */
--- /dev/null
+++ b/drivers/staging/fsl-dpaa2/mac/mac.c
@@ -0,0 +1,672 @@
+/* Copyright 2015 Freescale Semiconductor Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * * Neither the name of Freescale Semiconductor nor the
+ * names of its contributors may be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ *
+ * ALTERNATIVELY, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") as published by the Free Software
+ * Foundation, either version 2 of that License or (at your option) any
+ * later version.
+ *
+ * THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL Freescale Semiconductor BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <linux/module.h>
+
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/msi.h>
+#include <linux/rtnetlink.h>
+#include <linux/if_vlan.h>
+
+#include <uapi/linux/if_bridge.h>
+#include <net/netlink.h>
+
+#include <linux/of.h>
+#include <linux/of_mdio.h>
+#include <linux/of_net.h>
+#include <linux/phy.h>
+#include <linux/phy_fixed.h>
+
+#include <linux/fsl/mc.h>
+
+#include "dpmac.h"
+#include "dpmac-cmd.h"
+
+struct dpaa2_mac_priv {
+ struct net_device *netdev;
+ struct fsl_mc_device *mc_dev;
+ struct dpmac_attr attr;
+ struct dpmac_link_state old_state;
+};
+
+/* TODO: fix the 10G modes, mapping can't be right:
+ * XGMII is paralel
+ * XAUI is serial, using 8b/10b encoding
+ * XFI is also serial but using 64b/66b encoding
+ * they can't all map to XGMII...
+ *
+ * This must be kept in sync with enum dpmac_eth_if.
+ */
+static phy_interface_t dpaa2_mac_iface_mode[] = {
+ PHY_INTERFACE_MODE_MII, /* DPMAC_ETH_IF_MII */
+ PHY_INTERFACE_MODE_RMII, /* DPMAC_ETH_IF_RMII */
+ PHY_INTERFACE_MODE_SMII, /* DPMAC_ETH_IF_SMII */
+ PHY_INTERFACE_MODE_GMII, /* DPMAC_ETH_IF_GMII */
+ PHY_INTERFACE_MODE_RGMII, /* DPMAC_ETH_IF_RGMII */
+ PHY_INTERFACE_MODE_SGMII, /* DPMAC_ETH_IF_SGMII */
+ PHY_INTERFACE_MODE_QSGMII, /* DPMAC_ETH_IF_QSGMII */
+ PHY_INTERFACE_MODE_XGMII, /* DPMAC_ETH_IF_XAUI */
+ PHY_INTERFACE_MODE_XGMII, /* DPMAC_ETH_IF_XFI */
+};
+
+static void dpaa2_mac_link_changed(struct net_device *netdev)
+{
+ struct phy_device *phydev;
+ struct dpmac_link_state state = { 0 };
+ struct dpaa2_mac_priv *priv = netdev_priv(netdev);
+ int err;
+
+ /* the PHY just notified us of link state change */
+ phydev = netdev->phydev;
+
+ state.up = !!phydev->link;
+ if (phydev->link) {
+ state.rate = phydev->speed;
+
+ if (!phydev->duplex)
+ state.options |= DPMAC_LINK_OPT_HALF_DUPLEX;
+ if (phydev->autoneg)
+ state.options |= DPMAC_LINK_OPT_AUTONEG;
+
+ netif_carrier_on(netdev);
+ } else {
+ netif_carrier_off(netdev);
+ }
+
+ if (priv->old_state.up != state.up ||
+ priv->old_state.rate != state.rate ||
+ priv->old_state.options != state.options) {
+ priv->old_state = state;
+ phy_print_status(phydev);
+ }
+
+ /* We must interrogate MC at all times, because we don't know
+ * when and whether a potential DPNI may have read the link state.
+ */
+ err = dpmac_set_link_state(priv->mc_dev->mc_io, 0,
+ priv->mc_dev->mc_handle, &state);
+ if (unlikely(err))
+ dev_err(&priv->mc_dev->dev, "dpmac_set_link_state: %d\n", err);
+}
+
+static int dpaa2_mac_open(struct net_device *netdev)
+{
+ /* start PHY state machine */
+ phy_start(netdev->phydev);
+
+ return 0;
+}
+
+static int dpaa2_mac_stop(struct net_device *netdev)
+{
+ if (!netdev->phydev)
+ goto done;
+
+ /* stop PHY state machine */
+ phy_stop(netdev->phydev);
+
+ /* signal link down to firmware */
+ netdev->phydev->link = 0;
+ dpaa2_mac_link_changed(netdev);
+
+done:
+ return 0;
+}
+
+#ifdef CONFIG_FSL_DPAA2_MAC_NETDEVS
+static netdev_tx_t dpaa2_mac_drop_frame(struct sk_buff *skb,
+ struct net_device *dev)
+{
+ /* we don't support I/O for now, drop the frame */
+ dev_kfree_skb_any(skb);
+ return NETDEV_TX_OK;
+}
+
+static int dpaa2_mac_get_link_ksettings(struct net_device *netdev,
+ struct ethtool_link_ksettings *ks)
+{
+ phy_ethtool_ksettings_get(netdev->phydev, ks);
+
+ return 0;
+}
+
+static int dpaa2_mac_set_link_ksettings(struct net_device *netdev,
+ const struct ethtool_link_ksettings *ks)
+{
+ return phy_ethtool_ksettings_set(netdev->phydev, ks);
+}
+
+static void dpaa2_mac_get_stats(struct net_device *netdev,
+ struct rtnl_link_stats64 *storage)
+{
+ struct dpaa2_mac_priv *priv = netdev_priv(netdev);
+ u64 tmp;
+ int err;
+
+ err = dpmac_get_counter(priv->mc_dev->mc_io, 0, priv->mc_dev->mc_handle,
+ DPMAC_CNT_EGR_MCAST_FRAME,
+ &storage->tx_packets);
+ if (err)
+ goto error;
+ err = dpmac_get_counter(priv->mc_dev->mc_io, 0, priv->mc_dev->mc_handle,
+ DPMAC_CNT_EGR_BCAST_FRAME, &tmp);
+ if (err)
+ goto error;
+ storage->tx_packets += tmp;
+ err = dpmac_get_counter(priv->mc_dev->mc_io, 0, priv->mc_dev->mc_handle,
+ DPMAC_CNT_EGR_UCAST_FRAME, &tmp);
+ if (err)
+ goto error;
+ storage->tx_packets += tmp;
+
+ err = dpmac_get_counter(priv->mc_dev->mc_io, 0, priv->mc_dev->mc_handle,
+ DPMAC_CNT_EGR_UNDERSIZED, &storage->tx_dropped);
+ if (err)
+ goto error;
+ err = dpmac_get_counter(priv->mc_dev->mc_io, 0, priv->mc_dev->mc_handle,
+ DPMAC_CNT_EGR_BYTE, &storage->tx_bytes);
+ if (err)
+ goto error;
+ err = dpmac_get_counter(priv->mc_dev->mc_io, 0, priv->mc_dev->mc_handle,
+ DPMAC_CNT_EGR_ERR_FRAME, &storage->tx_errors);
+ if (err)
+ goto error;
+
+ err = dpmac_get_counter(priv->mc_dev->mc_io, 0, priv->mc_dev->mc_handle,
+ DPMAC_CNT_ING_ALL_FRAME, &storage->rx_packets);
+ if (err)
+ goto error;
+ err = dpmac_get_counter(priv->mc_dev->mc_io, 0, priv->mc_dev->mc_handle,
+ DPMAC_CNT_ING_MCAST_FRAME, &storage->multicast);
+ if (err)
+ goto error;
+ err = dpmac_get_counter(priv->mc_dev->mc_io, 0, priv->mc_dev->mc_handle,
+ DPMAC_CNT_ING_FRAME_DISCARD,
+ &storage->rx_dropped);
+ if (err)
+ goto error;
+ err = dpmac_get_counter(priv->mc_dev->mc_io, 0, priv->mc_dev->mc_handle,
+ DPMAC_CNT_ING_ALIGN_ERR, &storage->rx_errors);
+ if (err)
+ goto error;
+ err = dpmac_get_counter(priv->mc_dev->mc_io, 0, priv->mc_dev->mc_handle,
+ DPMAC_CNT_ING_OVERSIZED, &tmp);
+ if (err)
+ goto error;
+ storage->rx_errors += tmp;
+ err = dpmac_get_counter(priv->mc_dev->mc_io, 0, priv->mc_dev->mc_handle,
+ DPMAC_CNT_ING_BYTE, &storage->rx_bytes);
+ if (err)
+ goto error;
+
+ return;
+error:
+ netdev_err(netdev, "dpmac_get_counter err %d\n", err);
+}
+
+static struct {
+ enum dpmac_counter id;
+ char name[ETH_GSTRING_LEN];
+} dpaa2_mac_counters[] = {
+ {DPMAC_CNT_ING_ALL_FRAME, "rx all frames"},
+ {DPMAC_CNT_ING_GOOD_FRAME, "rx frames ok"},
+ {DPMAC_CNT_ING_ERR_FRAME, "rx frame errors"},
+ {DPMAC_CNT_ING_FRAME_DISCARD, "rx frame discards"},
+ {DPMAC_CNT_ING_UCAST_FRAME, "rx u-cast"},
+ {DPMAC_CNT_ING_BCAST_FRAME, "rx b-cast"},
+ {DPMAC_CNT_ING_MCAST_FRAME, "rx m-cast"},
+ {DPMAC_CNT_ING_FRAME_64, "rx 64 bytes"},
+ {DPMAC_CNT_ING_FRAME_127, "rx 65-127 bytes"},
+ {DPMAC_CNT_ING_FRAME_255, "rx 128-255 bytes"},
+ {DPMAC_CNT_ING_FRAME_511, "rx 256-511 bytes"},
+ {DPMAC_CNT_ING_FRAME_1023, "rx 512-1023 bytes"},
+ {DPMAC_CNT_ING_FRAME_1518, "rx 1024-1518 bytes"},
+ {DPMAC_CNT_ING_FRAME_1519_MAX, "rx 1519-max bytes"},
+ {DPMAC_CNT_ING_FRAG, "rx frags"},
+ {DPMAC_CNT_ING_JABBER, "rx jabber"},
+ {DPMAC_CNT_ING_ALIGN_ERR, "rx align errors"},
+ {DPMAC_CNT_ING_OVERSIZED, "rx oversized"},
+ {DPMAC_CNT_ING_VALID_PAUSE_FRAME, "rx pause"},
+ {DPMAC_CNT_ING_BYTE, "rx bytes"},
+ {DPMAC_CNT_ENG_GOOD_FRAME, "tx frames ok"},
+ {DPMAC_CNT_EGR_UCAST_FRAME, "tx u-cast"},
+ {DPMAC_CNT_EGR_MCAST_FRAME, "tx m-cast"},
+ {DPMAC_CNT_EGR_BCAST_FRAME, "tx b-cast"},
+ {DPMAC_CNT_EGR_ERR_FRAME, "tx frame errors"},
+ {DPMAC_CNT_EGR_UNDERSIZED, "tx undersized"},
+ {DPMAC_CNT_EGR_VALID_PAUSE_FRAME, "tx b-pause"},
+ {DPMAC_CNT_EGR_BYTE, "tx bytes"},
+
+};
+
+static void dpaa2_mac_get_strings(struct net_device *netdev,
+ u32 stringset, u8 *data)
+{
+ int i;
+
+ switch (stringset) {
+ case ETH_SS_STATS:
+ for (i = 0; i < ARRAY_SIZE(dpaa2_mac_counters); i++)
+ memcpy(data + i * ETH_GSTRING_LEN,
+ dpaa2_mac_counters[i].name,
+ ETH_GSTRING_LEN);
+ break;
+ }
+}
+
+static void dpaa2_mac_get_ethtool_stats(struct net_device *netdev,
+ struct ethtool_stats *stats,
+ u64 *data)
+{
+ struct dpaa2_mac_priv *priv = netdev_priv(netdev);
+ int i;
+ int err;
+
+ for (i = 0; i < ARRAY_SIZE(dpaa2_mac_counters); i++) {
+ err = dpmac_get_counter(priv->mc_dev->mc_io,
+ 0,
+ priv->mc_dev->mc_handle,
+ dpaa2_mac_counters[i].id, &data[i]);
+ if (err)
+ netdev_err(netdev, "dpmac_get_counter[%s] err %d\n",
+ dpaa2_mac_counters[i].name, err);
+ }
+}
+
+static int dpaa2_mac_get_sset_count(struct net_device *dev, int sset)
+{
+ switch (sset) {
+ case ETH_SS_STATS:
+ return ARRAY_SIZE(dpaa2_mac_counters);
+ default:
+ return -EOPNOTSUPP;
+ }
+}
+
+static const struct net_device_ops dpaa2_mac_ndo_ops = {
+ .ndo_open = &dpaa2_mac_open,
+ .ndo_stop = &dpaa2_mac_stop,
+ .ndo_start_xmit = &dpaa2_mac_drop_frame,
+ .ndo_get_stats64 = &dpaa2_mac_get_stats,
+};
+
+static const struct ethtool_ops dpaa2_mac_ethtool_ops = {
+ .get_link_ksettings = &dpaa2_mac_get_link_ksettings,
+ .set_link_ksettings = &dpaa2_mac_set_link_ksettings,
+ .get_strings = &dpaa2_mac_get_strings,
+ .get_ethtool_stats = &dpaa2_mac_get_ethtool_stats,
+ .get_sset_count = &dpaa2_mac_get_sset_count,
+};
+#endif /* CONFIG_FSL_DPAA2_MAC_NETDEVS */
+
+static void configure_link(struct dpaa2_mac_priv *priv,
+ struct dpmac_link_cfg *cfg)
+{
+ struct phy_device *phydev = priv->netdev->phydev;
+
+ if (unlikely(!phydev))
+ return;
+
+ phydev->speed = cfg->rate;
+ phydev->duplex = !!(cfg->options & DPMAC_LINK_OPT_HALF_DUPLEX);
+
+ if (cfg->options & DPMAC_LINK_OPT_AUTONEG) {
+ phydev->autoneg = 1;
+ phydev->advertising |= ADVERTISED_Autoneg;
+ } else {
+ phydev->autoneg = 0;
+ phydev->advertising &= ~ADVERTISED_Autoneg;
+ }
+
+ phy_start_aneg(phydev);
+}
+
+static irqreturn_t dpaa2_mac_irq_handler(int irq_num, void *arg)
+{
+ struct device *dev = (struct device *)arg;
+ struct fsl_mc_device *mc_dev = to_fsl_mc_device(dev);
+ struct dpaa2_mac_priv *priv = dev_get_drvdata(dev);
+ struct dpmac_link_cfg link_cfg;
+ u32 status;
+ int err;
+
+ err = dpmac_get_irq_status(mc_dev->mc_io, 0, mc_dev->mc_handle,
+ DPMAC_IRQ_INDEX, &status);
+ if (unlikely(err || !status))
+ return IRQ_NONE;
+
+ /* DPNI-initiated link configuration; 'ifconfig up' also calls this */
+ if (status & DPMAC_IRQ_EVENT_LINK_CFG_REQ) {
+ err = dpmac_get_link_cfg(mc_dev->mc_io, 0, mc_dev->mc_handle,
+ &link_cfg);
+ if (unlikely(err))
+ goto out;
+
+ configure_link(priv, &link_cfg);
+ }
+
+out:
+ dpmac_clear_irq_status(mc_dev->mc_io, 0, mc_dev->mc_handle,
+ DPMAC_IRQ_INDEX, status);
+
+ return IRQ_HANDLED;
+}
+
+static int setup_irqs(struct fsl_mc_device *mc_dev)
+{
+ int err = 0;
+ struct fsl_mc_device_irq *irq;
+
+ err = fsl_mc_allocate_irqs(mc_dev);
+ if (err) {
+ dev_err(&mc_dev->dev, "fsl_mc_allocate_irqs err %d\n", err);
+ return err;
+ }
+
+ irq = mc_dev->irqs[0];
+ err = devm_request_threaded_irq(&mc_dev->dev, irq->msi_desc->irq,
+ NULL, &dpaa2_mac_irq_handler,
+ IRQF_NO_SUSPEND | IRQF_ONESHOT,
+ dev_name(&mc_dev->dev), &mc_dev->dev);
+ if (err) {
+ dev_err(&mc_dev->dev, "devm_request_threaded_irq err %d\n",
+ err);
+ goto free_irq;
+ }
+
+ err = dpmac_set_irq_mask(mc_dev->mc_io, 0, mc_dev->mc_handle,
+ DPMAC_IRQ_INDEX, DPMAC_IRQ_EVENT_LINK_CFG_REQ);
+ if (err) {
+ dev_err(&mc_dev->dev, "dpmac_set_irq_mask err %d\n", err);
+ goto free_irq;
+ }
+ err = dpmac_set_irq_enable(mc_dev->mc_io, 0, mc_dev->mc_handle,
+ DPMAC_IRQ_INDEX, 1);
+ if (err) {
+ dev_err(&mc_dev->dev, "dpmac_set_irq_enable err %d\n", err);
+ goto free_irq;
+ }
+
+ return 0;
+
+free_irq:
+ fsl_mc_free_irqs(mc_dev);
+
+ return err;
+}
+
+static void teardown_irqs(struct fsl_mc_device *mc_dev)
+{
+ int err;
+
+ err = dpmac_set_irq_enable(mc_dev->mc_io, 0, mc_dev->mc_handle,
+ DPMAC_IRQ_INDEX, 0);
+ if (err)
+ dev_err(&mc_dev->dev, "dpmac_set_irq_enable err %d\n", err);
+
+ fsl_mc_free_irqs(mc_dev);
+}
+
+static struct device_node *find_dpmac_node(struct device *dev, u16 dpmac_id)
+{
+ struct device_node *dpmacs, *dpmac = NULL;
+ struct device_node *mc_node = dev->of_node;
+ u32 id;
+ int err;
+
+ dpmacs = of_find_node_by_name(mc_node, "dpmacs");
+ if (!dpmacs) {
+ dev_err(dev, "No dpmacs subnode in device-tree\n");
+ return NULL;
+ }
+
+ while ((dpmac = of_get_next_child(dpmacs, dpmac))) {
+ err = of_property_read_u32(dpmac, "reg", &id);
+ if (err)
+ continue;
+ if (id == dpmac_id)
+ return dpmac;
+ }
+
+ return NULL;
+}
+
+static int dpaa2_mac_probe(struct fsl_mc_device *mc_dev)
+{
+ struct device *dev;
+ struct dpaa2_mac_priv *priv = NULL;
+ struct device_node *phy_node, *dpmac_node;
+ struct net_device *netdev;
+ phy_interface_t if_mode;
+ int err = 0;
+
+ dev = &mc_dev->dev;
+
+ /* prepare a net_dev structure to make the phy lib API happy */
+ netdev = alloc_etherdev(sizeof(*priv));
+ if (!netdev) {
+ dev_err(dev, "alloc_etherdev error\n");
+ err = -ENOMEM;
+ goto err_exit;
+ }
+ priv = netdev_priv(netdev);
+ priv->mc_dev = mc_dev;
+ priv->netdev = netdev;
+
+ SET_NETDEV_DEV(netdev, dev);
+
+#ifdef CONFIG_FSL_DPAA2_MAC_NETDEVS
+ snprintf(netdev->name, IFNAMSIZ, "mac%d", mc_dev->obj_desc.id);
+#endif
+
+ dev_set_drvdata(dev, priv);
+
+ /* We may need to issue MC commands while in atomic context */
+ err = fsl_mc_portal_allocate(mc_dev, FSL_MC_IO_ATOMIC_CONTEXT_PORTAL,
+ &mc_dev->mc_io);
+ if (err || !mc_dev->mc_io) {
+ dev_dbg(dev, "fsl_mc_portal_allocate error: %d\n", err);
+ err = -EPROBE_DEFER;
+ goto err_free_netdev;
+ }
+
+ err = dpmac_open(mc_dev->mc_io, 0, mc_dev->obj_desc.id,
+ &mc_dev->mc_handle);
+ if (err || !mc_dev->mc_handle) {
+ dev_err(dev, "dpmac_open error: %d\n", err);
+ err = -ENODEV;
+ goto err_free_mcp;
+ }
+
+ err = dpmac_get_attributes(mc_dev->mc_io, 0,
+ mc_dev->mc_handle, &priv->attr);
+ if (err) {
+ dev_err(dev, "dpmac_get_attributes err %d\n", err);
+ err = -EINVAL;
+ goto err_close;
+ }
+
+ /* Look up the DPMAC node in the device-tree. */
+ dpmac_node = find_dpmac_node(dev, priv->attr.id);
+ if (!dpmac_node) {
+ dev_err(dev, "No dpmac@%d subnode found.\n", priv->attr.id);
+ err = -ENODEV;
+ goto err_close;
+ }
+
+ err = setup_irqs(mc_dev);
+ if (err) {
+ err = -EFAULT;
+ goto err_close;
+ }
+
+#ifdef CONFIG_FSL_DPAA2_MAC_NETDEVS
+ /* OPTIONAL, register netdev just to make it visible to the user */
+ netdev->netdev_ops = &dpaa2_mac_ndo_ops;
+ netdev->ethtool_ops = &dpaa2_mac_ethtool_ops;
+
+ /* phy starts up enabled so netdev should be up too */
+ netdev->flags |= IFF_UP;
+
+ err = register_netdev(priv->netdev);
+ if (err < 0) {
+ dev_err(dev, "register_netdev error %d\n", err);
+ err = -ENODEV;
+ goto err_free_irq;
+ }
+#endif /* CONFIG_FSL_DPAA2_MAC_NETDEVS */
+
+ /* probe the PHY as a fixed-link if there's a phy-handle defined
+ * in the device tree
+ */
+ phy_node = of_parse_phandle(dpmac_node, "phy-handle", 0);
+ if (!phy_node) {
+ goto probe_fixed_link;
+ }
+
+ if (priv->attr.eth_if < ARRAY_SIZE(dpaa2_mac_iface_mode)) {
+ if_mode = dpaa2_mac_iface_mode[priv->attr.eth_if];
+ dev_dbg(dev, "\tusing if mode %s for eth_if %d\n",
+ phy_modes(if_mode), priv->attr.eth_if);
+ } else {
+ dev_warn(dev, "Unexpected interface mode %d, will probe as fixed link\n",
+ priv->attr.eth_if);
+ goto probe_fixed_link;
+ }
+
+ /* try to connect to the PHY */
+ netdev->phydev = of_phy_connect(netdev, phy_node,
+ &dpaa2_mac_link_changed, 0, if_mode);
+ if (!netdev->phydev) {
+ /* No need for dev_err(); the kernel's loud enough as it is. */
+ dev_dbg(dev, "Can't of_phy_connect() now.\n");
+ /* We might be waiting for the MDIO MUX to probe, so defer
+ * our own probing.
+ */
+ err = -EPROBE_DEFER;
+ goto err_defer;
+ }
+ dev_info(dev, "Connected to %s PHY.\n", phy_modes(if_mode));
+
+probe_fixed_link:
+ if (!netdev->phydev) {
+ struct fixed_phy_status status = {
+ .link = 1,
+ /* fixed-phys don't support 10Gbps speed for now */
+ .speed = 1000,
+ .duplex = 1,
+ };
+
+ /* try to register a fixed link phy */
+ netdev->phydev = fixed_phy_register(PHY_POLL, &status, -1,
+ NULL);
+ if (!netdev->phydev || IS_ERR(netdev->phydev)) {
+ dev_err(dev, "error trying to register fixed PHY\n");
+ /* So we don't crash unregister_netdev() later on */
+ netdev->phydev = NULL;
+ err = -EFAULT;
+ goto err_no_phy;
+ }
+ dev_info(dev, "Registered fixed PHY.\n");
+ }
+
+ dpaa2_mac_open(netdev);
+
+ return 0;
+
+err_defer:
+err_no_phy:
+#ifdef CONFIG_FSL_DPAA2_MAC_NETDEVS
+ unregister_netdev(netdev);
+err_free_irq:
+#endif
+ teardown_irqs(mc_dev);
+err_close:
+ dpmac_close(mc_dev->mc_io, 0, mc_dev->mc_handle);
+err_free_mcp:
+ fsl_mc_portal_free(mc_dev->mc_io);
+err_free_netdev:
+ free_netdev(netdev);
+err_exit:
+ return err;
+}
+
+static int dpaa2_mac_remove(struct fsl_mc_device *mc_dev)
+{
+ struct device *dev = &mc_dev->dev;
+ struct dpaa2_mac_priv *priv = dev_get_drvdata(dev);
+ struct net_device *netdev = priv->netdev;
+
+ dpaa2_mac_stop(netdev);
+
+ if (phy_is_pseudo_fixed_link(netdev->phydev))
+ fixed_phy_unregister(netdev->phydev);
+ else
+ phy_disconnect(netdev->phydev);
+ netdev->phydev = NULL;
+
+#ifdef CONFIG_FSL_DPAA2_MAC_NETDEVS
+ unregister_netdev(priv->netdev);
+#endif
+ teardown_irqs(priv->mc_dev);
+ dpmac_close(priv->mc_dev->mc_io, 0, priv->mc_dev->mc_handle);
+ fsl_mc_portal_free(priv->mc_dev->mc_io);
+ free_netdev(priv->netdev);
+
+ dev_set_drvdata(dev, NULL);
+
+ return 0;
+}
+
+static const struct fsl_mc_device_id dpaa2_mac_match_id_table[] = {
+ {
+ .vendor = FSL_MC_VENDOR_FREESCALE,
+ .obj_type = "dpmac",
+ },
+ { .vendor = 0x0 }
+};
+MODULE_DEVICE_TABLE(fslmc, dpaa2_mac_match_id_table);
+
+static struct fsl_mc_driver dpaa2_mac_drv = {
+ .driver = {
+ .name = KBUILD_MODNAME,
+ .owner = THIS_MODULE,
+ },
+ .probe = dpaa2_mac_probe,
+ .remove = dpaa2_mac_remove,
+ .match_id_table = dpaa2_mac_match_id_table,
+};
+
+module_fsl_mc_driver(dpaa2_mac_drv);
+
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("DPAA2 PHY proxy interface driver");
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