DPMAC object of Management complex controls Physical MAC and MDIO controller. It provides APIs for MDIO and link state updates. It also provides APIs for PHY/link configuration.
Signed-off-by: Prabhakar Kushwaha prabhakar@freescale.com --- Changes for v2: Updated Copyright year Changes for v3: Sending as it is Changes for v4: Sending as it is
drivers/net/fsl-mc/Makefile | 3 +- drivers/net/fsl-mc/dpmac.c | 222 +++++++++++++++++++++ include/fsl-mc/fsl_dpmac.h | 468 ++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 692 insertions(+), 1 deletion(-) create mode 100644 drivers/net/fsl-mc/dpmac.c create mode 100644 include/fsl-mc/fsl_dpmac.h
diff --git a/drivers/net/fsl-mc/Makefile b/drivers/net/fsl-mc/Makefile index 7563a5f..a492388 100644 --- a/drivers/net/fsl-mc/Makefile +++ b/drivers/net/fsl-mc/Makefile @@ -10,5 +10,6 @@ obj-y += mc.o \ dpmng.o \ dprc.o \ dpbp.o \ - dpni.o + dpni.o \ + dpmac.o obj-y += dpio/ diff --git a/drivers/net/fsl-mc/dpmac.c b/drivers/net/fsl-mc/dpmac.c new file mode 100644 index 0000000..072a90d --- /dev/null +++ b/drivers/net/fsl-mc/dpmac.c @@ -0,0 +1,222 @@ +/* + * Freescale Layerscape MC I/O wrapper + * + * Copyright (C) 2015 Freescale Semiconductor, Inc. + * Author: Prabhakar Kushwaha prabhakar@freescale.com + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <fsl-mc/fsl_mc_sys.h> +#include <fsl-mc/fsl_mc_cmd.h> +#include <fsl-mc/fsl_dpmac.h> + +int dpmac_open(struct fsl_mc_io *mc_io, + uint32_t cmd_flags, + int dpmac_id, + uint16_t *token) +{ + struct mc_command cmd = { 0 }; + int err; + + /* prepare command */ + cmd.header = mc_encode_cmd_header(DPMAC_CMDID_OPEN, + cmd_flags, + 0); + DPMAC_CMD_OPEN(cmd, 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.header); + + return err; +} + +int dpmac_close(struct fsl_mc_io *mc_io, + uint32_t cmd_flags, + uint16_t token) +{ + struct 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); +} + +int dpmac_create(struct fsl_mc_io *mc_io, + uint32_t cmd_flags, + const struct dpmac_cfg *cfg, + uint16_t *token) +{ + struct mc_command cmd = { 0 }; + int err; + + /* prepare command */ + cmd.header = mc_encode_cmd_header(DPMAC_CMDID_CREATE, + cmd_flags, + 0); + DPMAC_CMD_CREATE(cmd, cfg); + + /* 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.header); + + return 0; +} + +int dpmac_destroy(struct fsl_mc_io *mc_io, + uint32_t cmd_flags, + uint16_t token) +{ + struct mc_command cmd = { 0 }; + + /* prepare command */ + cmd.header = mc_encode_cmd_header(DPMAC_CMDID_DESTROY, + cmd_flags, + token); + + /* send command to mc*/ + return mc_send_command(mc_io, &cmd); +} + +int dpmac_get_attributes(struct fsl_mc_io *mc_io, + uint32_t cmd_flags, + uint16_t token, + struct dpmac_attr *attr) +{ + struct 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 */ + DPMAC_RSP_GET_ATTRIBUTES(cmd, attr); + + return 0; +} + +int dpmac_mdio_read(struct fsl_mc_io *mc_io, + uint32_t cmd_flags, + uint16_t token, + struct dpmac_mdio_cfg *cfg) +{ + struct mc_command cmd = { 0 }; + int err; + + /* prepare command */ + cmd.header = mc_encode_cmd_header(DPMAC_CMDID_MDIO_READ, + cmd_flags, + token); + DPMAC_CMD_MDIO_READ(cmd, cfg); + + /* send command to mc*/ + err = mc_send_command(mc_io, &cmd); + if (err) + return err; + + /* retrieve response parameters */ + DPMAC_RSP_MDIO_READ(cmd, cfg->data); + + return 0; +} + +int dpmac_mdio_write(struct fsl_mc_io *mc_io, + uint32_t cmd_flags, + uint16_t token, + struct dpmac_mdio_cfg *cfg) +{ + struct mc_command cmd = { 0 }; + + /* prepare command */ + cmd.header = mc_encode_cmd_header(DPMAC_CMDID_MDIO_WRITE, + cmd_flags, + token); + DPMAC_CMD_MDIO_WRITE(cmd, cfg); + + /* send command to mc*/ + return mc_send_command(mc_io, &cmd); +} + +int dpmac_get_link_cfg(struct fsl_mc_io *mc_io, + uint32_t cmd_flags, + uint16_t token, + struct dpmac_link_cfg *cfg) +{ + struct 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; + + DPMAC_RSP_GET_LINK_CFG(cmd, cfg); + + return 0; +} + +int dpmac_set_link_state(struct fsl_mc_io *mc_io, + uint32_t cmd_flags, + uint16_t token, + struct dpmac_link_state *link_state) +{ + struct mc_command cmd = { 0 }; + + /* prepare command */ + cmd.header = mc_encode_cmd_header(DPMAC_CMDID_SET_LINK_STATE, + cmd_flags, + token); + DPMAC_CMD_SET_LINK_STATE(cmd, link_state); + + /* send command to mc*/ + return mc_send_command(mc_io, &cmd); +} + +int dpmac_get_counter(struct fsl_mc_io *mc_io, + uint32_t cmd_flags, + uint16_t token, + enum dpmac_counter type, + uint64_t *counter) +{ + struct mc_command cmd = { 0 }; + int err = 0; + + /* prepare command */ + cmd.header = mc_encode_cmd_header(DPMAC_CMDID_GET_COUNTER, + cmd_flags, + token); + DPMAC_CMD_GET_COUNTER(cmd, type); + + /* send command to mc*/ + err = mc_send_command(mc_io, &cmd); + if (err) + return err; + + DPMAC_RSP_GET_COUNTER(cmd, *counter); + + return 0; +} diff --git a/include/fsl-mc/fsl_dpmac.h b/include/fsl-mc/fsl_dpmac.h new file mode 100644 index 0000000..24f0b48 --- /dev/null +++ b/include/fsl-mc/fsl_dpmac.h @@ -0,0 +1,468 @@ +/* + * Freescale Layerscape MC I/O wrapper + * + * Copyright (C) 2015 Freescale Semiconductor, Inc. + * Author: Prabhakar Kushwaha prabhakar@freescale.com + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#ifndef __FSL_DPMAC_H +#define __FSL_DPMAC_H + +/* DPMAC Version */ +#define DPMAC_VER_MAJOR 3 +#define DPMAC_VER_MINOR 1 + +/* Command IDs */ +#define DPMAC_CMDID_CLOSE 0x800 +#define DPMAC_CMDID_OPEN 0x80c +#define DPMAC_CMDID_CREATE 0x90c +#define DPMAC_CMDID_DESTROY 0x900 + +#define DPMAC_CMDID_GET_ATTR 0x004 +#define DPMAC_CMDID_RESET 0x005 + +#define DPMAC_CMDID_MDIO_READ 0x0c0 +#define DPMAC_CMDID_MDIO_WRITE 0x0c1 +#define DPMAC_CMDID_GET_LINK_CFG 0x0c2 +#define DPMAC_CMDID_SET_LINK_STATE 0x0c3 +#define DPMAC_CMDID_GET_COUNTER 0x0c4 + +/* cmd, param, offset, width, type, arg_name */ +#define DPMAC_CMD_CREATE(cmd, cfg) \ + MC_CMD_OP(cmd, 0, 0, 32, int, 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, 0, 16, uint16_t, attr->version.major);\ + MC_RSP_OP(cmd, 1, 16, 16, uint16_t, attr->version.minor);\ + 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, 0, 0, 8, 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 + * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' + * @cfg: Configuration structure + * @token: Returned token; 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, + uint32_t cmd_flags, + const struct dpmac_cfg *cfg, + uint16_t *token); + +/** + * dpmac_destroy() - Destroy the DPMAC object and release all its resources. + * @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 + * + * Return: '0' on Success; error code otherwise. + */ +int dpmac_destroy(struct fsl_mc_io *mc_io, + uint32_t cmd_flags, + uint16_t token); + +/* 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; + /** + * struct version - Structure representing DPMAC version + * @major: DPMAC major version + * @minor: DPMAC minor version + */ + struct { + uint16_t major; + uint16_t minor; + } version; +}; + +/** + * 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); + +#endif /* __FSL_DPMAC_H */