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u-boot-brain/include/fsl-mc/fsl_dpmac.h
Tom Rini 83d290c56f SPDX: Convert all of our single license tags to Linux Kernel style 
When U-Boot started using SPDX tags we were among the early adopters and
there weren't a lot of other examples to borrow from.  So we picked the
area of the file that usually had a full license text and replaced it
with an appropriate SPDX-License-Identifier: entry.  Since then, the
Linux Kernel has adopted SPDX tags and they place it as the very first
line in a file (except where shebangs are used, then it's second line)
and with slightly different comment styles than us.

In part due to community overlap, in part due to better tag visibility
and in part for other minor reasons, switch over to that style.

This commit changes all instances where we have a single declared
license in the tag as both the before and after are identical in tag
contents.  There's also a few places where I found we did not have a tag
and have introduced one.

Signed-off-by: Tom Rini <trini@konsulko.com>
2018-05-07 09:34:12 -04:00

477 lines
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/* SPDX-License-Identifier: GPL-2.0+ */
/*
* Freescale Layerscape MC I/O wrapper
*
* Copyright (C) 2015-2016 Freescale Semiconductor, Inc.
* Copyright 2017 NXP
* Author: Prabhakar Kushwaha <prabhakar@freescale.com>
*/
#ifndef __FSL_DPMAC_H
#define __FSL_DPMAC_H
/* DPMAC Version */
#define DPMAC_VER_MAJOR 4
#define DPMAC_VER_MINOR 2
/* Command IDs */
#define DPMAC_CMDID_CLOSE 0x8001
#define DPMAC_CMDID_OPEN 0x80c1
#define DPMAC_CMDID_CREATE 0x90c1
#define DPMAC_CMDID_DESTROY 0x98c1
#define DPMAC_CMDID_GET_API_VERSION 0xa0c1
#define DPMAC_CMDID_GET_ATTR 0x0041
#define DPMAC_CMDID_RESET 0x0051
#define DPMAC_CMDID_MDIO_READ 0x0c01
#define DPMAC_CMDID_MDIO_WRITE 0x0c11
#define DPMAC_CMDID_GET_LINK_CFG 0x0c21
#define DPMAC_CMDID_SET_LINK_STATE 0x0c31
#define DPMAC_CMDID_GET_COUNTER 0x0c41
/* cmd, param, offset, width, type, arg_name */
#define DPMAC_CMD_CREATE(cmd, cfg) \
MC_CMD_OP(cmd, 0, 0, 16, uint16_t, cfg->mac_id)
/* cmd, param, offset, width, type, arg_name */
#define DPMAC_CMD_OPEN(cmd, dpmac_id) \
MC_CMD_OP(cmd, 0, 0, 32, int, dpmac_id)
/* cmd, param, offset, width, type, arg_name */
#define DPMAC_RSP_GET_ATTRIBUTES(cmd, attr) \
do { \
MC_RSP_OP(cmd, 0, 0, 32, int, attr->phy_id);\
MC_RSP_OP(cmd, 0, 32, 32, int, attr->id);\
MC_RSP_OP(cmd, 1, 32, 8, enum dpmac_link_type, attr->link_type);\
MC_RSP_OP(cmd, 1, 40, 8, enum dpmac_eth_if, attr->eth_if);\
MC_RSP_OP(cmd, 2, 0, 32, uint32_t, attr->max_rate);\
} while (0)
/* cmd, param, offset, width, type, arg_name */
#define DPMAC_CMD_MDIO_READ(cmd, cfg) \
do { \
MC_CMD_OP(cmd, 0, 0, 8, uint8_t, cfg->phy_addr); \
MC_CMD_OP(cmd, 0, 8, 8, uint8_t, cfg->reg); \
} while (0)
/* cmd, param, offset, width, type, arg_name */
#define DPMAC_RSP_MDIO_READ(cmd, data) \
MC_RSP_OP(cmd, 0, 16, 16, uint16_t, data)
/* cmd, param, offset, width, type, arg_name */
#define DPMAC_CMD_MDIO_WRITE(cmd, cfg) \
do { \
MC_CMD_OP(cmd, 0, 0, 8, uint8_t, cfg->phy_addr); \
MC_CMD_OP(cmd, 0, 8, 8, uint8_t, cfg->reg); \
MC_CMD_OP(cmd, 0, 16, 16, uint16_t, cfg->data); \
} while (0)
/* cmd, param, offset, width, type, arg_name */
#define DPMAC_RSP_GET_LINK_CFG(cmd, cfg) \
do { \
MC_RSP_OP(cmd, 0, 0, 64, uint64_t, cfg->options); \
MC_RSP_OP(cmd, 1, 0, 32, uint32_t, cfg->rate); \
} while (0)
/* cmd, param, offset, width, type, arg_name */
#define DPMAC_CMD_SET_LINK_STATE(cmd, cfg) \
do { \
MC_CMD_OP(cmd, 0, 0, 64, uint64_t, cfg->options); \
MC_CMD_OP(cmd, 1, 0, 32, uint32_t, cfg->rate); \
MC_CMD_OP(cmd, 2, 0, 1, int, cfg->up); \
} while (0)
/* cmd, param, offset, width, type, arg_name */
#define DPMAC_CMD_GET_COUNTER(cmd, type) \
MC_CMD_OP(cmd, 1, 0, 64, enum dpmac_counter, type)
/* cmd, param, offset, width, type, arg_name */
#define DPMAC_RSP_GET_COUNTER(cmd, counter) \
MC_RSP_OP(cmd, 1, 0, 64, uint64_t, counter)
/* Data Path MAC API
* Contains initialization APIs and runtime control APIs for DPMAC
*/
struct fsl_mc_io;
/**
* 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,
uint32_t cmd_flags,
int dpmac_id,
uint16_t *token);
/**
* 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,
uint32_t cmd_flags,
uint16_t 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 {
int mac_id;
};
/**
* dpmac_create() - Create the DPMAC object.
* @mc_io: Pointer to MC portal's I/O object
* @token: Authentication token.
* @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
* @cfg: Configuration structure
* @obj_id: Returned obj_id; use in subsequent API calls
*
* Create the DPMAC object, allocate required resources and
* perform required initialization.
*
* The object can be created either by declaring it in the
* DPL file, or by calling this 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 calls to
* this specific object. For objects that are created using the
* DPL file, call dpmac_open function to get an authentication
* token first.
*
* Return: '0' on Success; Error code otherwise.
*/
int dpmac_create(struct fsl_mc_io *mc_io,
uint16_t token,
uint32_t cmd_flags,
const struct dpmac_cfg *cfg,
uint32_t *obj_id);
/**
* dpmac_destroy() - Destroy the DPMAC object and release all its resources.
* @mc_io: Pointer to MC portal's I/O object
* @token: Authentication token.
* @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
* @obj_id: DPMAC object id
*
* Return: '0' on Success; error code otherwise.
*/
int dpmac_destroy(struct fsl_mc_io *mc_io,
uint16_t token,
uint32_t cmd_flags,
uint32_t obj_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
/**
* struct dpmac_attr - Structure representing DPMAC attributes
* @id: DPMAC object ID
* @phy_id: PHY ID
* @link_type: link type
* @eth_if: Ethernet interface
* @max_rate: Maximum supported rate - in Mbps
* @version: DPMAC version
*/
struct dpmac_attr {
int id;
int phy_id;
enum dpmac_link_type link_type;
enum dpmac_eth_if eth_if;
uint32_t max_rate;
};
/**
* 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,
uint32_t cmd_flags,
uint16_t token,
struct dpmac_attr *attr);
/**
* struct dpmac_mdio_cfg - DPMAC MDIO read/write parameters
* @phy_addr: MDIO device address
* @reg: Address of the register within the Clause 45 PHY device from which data
* is to be read
* @data: Data read/write from/to MDIO
*/
struct dpmac_mdio_cfg {
uint8_t phy_addr;
uint8_t reg;
uint16_t data;
};
/**
* dpmac_mdio_read() - Perform MDIO read transaction
* @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: Structure with MDIO transaction parameters
*
* Return: '0' on Success; Error code otherwise.
*/
int dpmac_mdio_read(struct fsl_mc_io *mc_io,
uint32_t cmd_flags,
uint16_t token,
struct dpmac_mdio_cfg *cfg);
/**
* dpmac_mdio_write() - Perform MDIO write transaction
* @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: Structure with MDIO transaction parameters
*
* Return: '0' on Success; Error code otherwise.
*/
int dpmac_mdio_write(struct fsl_mc_io *mc_io,
uint32_t cmd_flags,
uint16_t token,
struct dpmac_mdio_cfg *cfg);
/* 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 {
uint32_t rate;
uint64_t options;
};
/**
* 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,
uint32_t cmd_flags,
uint16_t 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 {
uint32_t rate;
uint64_t options;
int up;
};
/**
* 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,
uint32_t cmd_flags,
uint16_t token,
struct dpmac_link_state *link_state);
/**
* enum dpni_counter - DPNI counter types
* @DPMAC_CNT_ING_FRAME_64: counts 64-octet frame, good or bad.
* @DPMAC_CNT_ING_FRAME_127: counts 65- to 127-octet frame, good or bad.
* @DPMAC_CNT_ING_FRAME_255: counts 128- to 255-octet frame, good or bad.
* @DPMAC_CNT_ING_FRAME_511: counts 256- to 511-octet frame, good or bad.
* @DPMAC_CNT_ING_FRAME_1023: counts 512- to 1023-octet frame, good or bad.
* @DPMAC_CNT_ING_FRAME_1518: counts 1024- to 1518-octet frame, good or bad.
* @DPMAC_CNT_ING_FRAME_1519_MAX: counts 1519-octet frame and larger
* (up to max frame length specified),
* good or bad.
* @DPMAC_CNT_ING_FRAG: counts packet which is shorter than 64 octets received
* with a wrong CRC
* @DPMAC_CNT_ING_JABBER: counts packet longer than the maximum frame length
* specified, with a bad frame check sequence.
* @DPMAC_CNT_ING_FRAME_DISCARD: counts dropped packet due to internal errors.
* Occurs when a receive FIFO overflows.
* Includes also packets truncated as a result of
* the receive FIFO overflow.
* @DPMAC_CNT_ING_ALIGN_ERR: counts frame with an alignment error
* (optional used for wrong SFD)
* @DPMAC_CNT_EGR_UNDERSIZED: counts packet transmitted that was less than 64
* octets long with a good CRC.
* @DPMAC_CNT_ING_OVERSIZED: counts packet longer than the maximum frame length
* specified, with a good frame check sequence.
* @DPMAC_CNT_ING_VALID_PAUSE_FRAME: counts valid pause frame (regular and PFC).
* @DPMAC_CNT_EGR_VALID_PAUSE_FRAME: counts valid pause frame transmitted
* (regular and PFC).
* @DPMAC_CNT_ING_BYTE: counts octet received except preamble for all valid
* frames and valid pause frames.
* @DPMAC_CNT_ING_MCAST_FRAME: counts received multicast frame
* @DPMAC_CNT_ING_BCAST_FRAME: counts received broadcast frame
* @DPMAC_CNT_ING_ALL_FRAME: counts each good or bad packet received.
* @DPMAC_CNT_ING_UCAST_FRAME: counts received unicast frame
* @DPMAC_CNT_ING_ERR_FRAME: counts frame received with an error
* (except for undersized/fragment frame)
* @DPMAC_CNT_EGR_BYTE: counts octet transmitted except preamble for all valid
* frames and valid pause frames transmitted.
* @DPMAC_CNT_EGR_MCAST_FRAME: counts transmitted multicast frame
* @DPMAC_CNT_EGR_BCAST_FRAME: counts transmitted broadcast frame
* @DPMAC_CNT_EGR_UCAST_FRAME: counts transmitted unicast frame
* @DPMAC_CNT_EGR_ERR_FRAME: counts frame transmitted with an error
* @DPMAC_CNT_ING_GOOD_FRAME: counts frame received 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_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,
uint32_t cmd_flags,
uint16_t token,
enum dpmac_counter type,
uint64_t *counter);
/**
* dpmac_get_api_version - Retrieve DPMAC Major and Minor version info.
*
* @mc_io: Pointer to MC portal's I/O object
* @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
* @major_ver: DPMAC major version
* @minor_ver: DPMAC minor version
*
* Return: '0' on Success; Error code otherwise.
*/
int dpmac_get_api_version(struct fsl_mc_io *mc_io,
uint32_t cmd_flags,
uint16_t *major_ver,
uint16_t *minor_ver);
#endif /* __FSL_DPMAC_H */
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