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/* SPDX-License-Identifier: GPL-2.0 */
/*
* Copyright (C) 2020 Marvell International Ltd.
*
* Functions to configure the BGX MAC.
*/
#ifndef __CVMX_HELPER_BGX_H__
#define __CVMX_HELPER_BGX_H__
#define CVMX_BGX_RX_FIFO_SIZE (64 * 1024)
#define CVMX_BGX_TX_FIFO_SIZE (32 * 1024)
int __cvmx_helper_bgx_enumerate(int xiface);
/**
* @INTERNAL
* Disable the BGX port
*
* @param xipd_port IPD port of the BGX interface to disable
*/
void cvmx_helper_bgx_disable(int xipd_port);
/**
* @INTERNAL
* Probe a SGMII interface and determine the number of ports
* connected to it. The SGMII/XAUI interface should still be down after
* this call. This is used by interfaces using the bgx mac.
*
* @param xiface Interface to probe
*
* Return: Number of ports on the interface. Zero to disable.
*/
int __cvmx_helper_bgx_probe(int xiface);
/**
* @INTERNAL
* Bringup and enable a SGMII interface. After this call packet
* I/O should be fully functional. This is called with IPD
* enabled but PKO disabled. This is used by interfaces using the
* bgx mac.
*
* @param xiface Interface to bring up
*
* Return: Zero on success, negative on failure
*/
int __cvmx_helper_bgx_sgmii_enable(int xiface);
/**
* @INTERNAL
* Return the link state of an IPD/PKO port as returned by
* auto negotiation. The result of this function may not match
* Octeon's link config if auto negotiation has changed since
* the last call to cvmx_helper_link_set(). This is used by
* interfaces using the bgx mac.
*
* @param xipd_port IPD/PKO port to query
*
* Return: Link state
*/
cvmx_helper_link_info_t __cvmx_helper_bgx_sgmii_link_get(int xipd_port);
/**
* @INTERNAL
* Configure an IPD/PKO port for the specified link state. This
* function does not influence auto negotiation at the PHY level.
* The passed link state must always match the link state returned
* by cvmx_helper_link_get(). It is normally best to use
* cvmx_helper_link_autoconf() instead. This is used by interfaces
* using the bgx mac.
*
* @param xipd_port IPD/PKO port to configure
* @param link_info The new link state
*
* Return: Zero on success, negative on failure
*/
int __cvmx_helper_bgx_sgmii_link_set(int xipd_port, cvmx_helper_link_info_t link_info);
/**
* @INTERNAL
* Configure a port for internal and/or external loopback. Internal loopback
* causes packets sent by the port to be received by Octeon. External loopback
* causes packets received from the wire to sent out again. This is used by
* interfaces using the bgx mac.
*
* @param xipd_port IPD/PKO port to loopback.
* @param enable_internal
* Non zero if you want internal loopback
* @param enable_external
* Non zero if you want external loopback
*
* Return: Zero on success, negative on failure.
*/
int __cvmx_helper_bgx_sgmii_configure_loopback(int xipd_port, int enable_internal,
int enable_external);
/**
* @INTERNAL
* Bringup and enable a XAUI interface. After this call packet
* I/O should be fully functional. This is called with IPD
* enabled but PKO disabled. This is used by interfaces using the
* bgx mac.
*
* @param xiface Interface to bring up
*
* Return: Zero on success, negative on failure
*/
int __cvmx_helper_bgx_xaui_enable(int xiface);
/**
* @INTERNAL
* Return the link state of an IPD/PKO port as returned by
* auto negotiation. The result of this function may not match
* Octeon's link config if auto negotiation has changed since
* the last call to cvmx_helper_link_set(). This is used by
* interfaces using the bgx mac.
*
* @param xipd_port IPD/PKO port to query
*
* Return: Link state
*/
cvmx_helper_link_info_t __cvmx_helper_bgx_xaui_link_get(int xipd_port);
/**
* @INTERNAL
* Configure an IPD/PKO port for the specified link state. This
* function does not influence auto negotiation at the PHY level.
* The passed link state must always match the link state returned
* by cvmx_helper_link_get(). It is normally best to use
* cvmx_helper_link_autoconf() instead. This is used by interfaces
* using the bgx mac.
*
* @param xipd_port IPD/PKO port to configure
* @param link_info The new link state
*
* Return: Zero on success, negative on failure
*/
int __cvmx_helper_bgx_xaui_link_set(int xipd_port, cvmx_helper_link_info_t link_info);
/**
* @INTERNAL
* Configure a port for internal and/or external loopback. Internal loopback
* causes packets sent by the port to be received by Octeon. External loopback
* causes packets received from the wire to sent out again. This is used by
* interfaces using the bgx mac.
*
* @param xipd_port IPD/PKO port to loopback.
* @param enable_internal
* Non zero if you want internal loopback
* @param enable_external
* Non zero if you want external loopback
*
* Return: Zero on success, negative on failure.
*/
int __cvmx_helper_bgx_xaui_configure_loopback(int xipd_port, int enable_internal,
int enable_external);
int __cvmx_helper_bgx_mixed_enable(int xiface);
cvmx_helper_link_info_t __cvmx_helper_bgx_mixed_link_get(int xipd_port);
int __cvmx_helper_bgx_mixed_link_set(int xipd_port, cvmx_helper_link_info_t link_info);
int __cvmx_helper_bgx_mixed_configure_loopback(int xipd_port, int enable_internal,
int enable_external);
cvmx_helper_interface_mode_t cvmx_helper_bgx_get_mode(int xiface, int index);
/**
* @INTERNAL
* Configure Priority-Based Flow Control (a.k.a. PFC/CBFC)
* on a specific BGX interface/port.
*/
void __cvmx_helper_bgx_xaui_config_pfc(unsigned int node, unsigned int interface, unsigned int port,
bool pfc_enable);
/**
* This function control how the hardware handles incoming PAUSE
* packets. The most common modes of operation:
* ctl_bck = 1, ctl_drp = 1: hardware handles everything
* ctl_bck = 0, ctl_drp = 0: software sees all PAUSE frames
* ctl_bck = 0, ctl_drp = 1: all PAUSE frames are completely ignored
* @param node node number.
* @param interface interface number
* @param port port number
* @param ctl_bck 1: Forward PAUSE information to TX block
* @param ctl_drp 1: Drop control PAUSE frames.
*/
void cvmx_helper_bgx_rx_pause_ctl(unsigned int node, unsigned int interface, unsigned int port,
unsigned int ctl_bck, unsigned int ctl_drp);
/**
* This function configures the receive action taken for multicast, broadcast
* and dmac filter match packets.
* @param node node number.
* @param interface interface number
* @param port port number
* @param cam_accept 0: reject packets on dmac filter match
* 1: accept packet on dmac filter match
* @param mcast_mode 0x0 = Force reject all multicast packets
* 0x1 = Force accept all multicast packets
* 0x2 = Use the address filter CAM
* @param bcast_accept 0 = Reject all broadcast packets
* 1 = Accept all broadcast packets
*/
void cvmx_helper_bgx_rx_adr_ctl(unsigned int node, unsigned int interface, unsigned int port,
unsigned int cam_accept, unsigned int mcast_mode,
unsigned int bcast_accept);
/**
* Function to control the generation of FCS, padding by the BGX
*
*/
void cvmx_helper_bgx_tx_options(unsigned int node, unsigned int interface, unsigned int index,
bool fcs_enable, bool pad_enable);
/**
* Set mac for the ipd_port
*
* @param xipd_port ipd_port to set the mac
* @param bcst If set, accept all broadcast packets
* @param mcst Multicast mode
* 0 = Force reject all multicast packets
* 1 = Force accept all multicast packets
* 2 = use the address filter CAM.
* @param mac mac address for the ipd_port
*/
void cvmx_helper_bgx_set_mac(int xipd_port, int bcst, int mcst, u64 mac);
int __cvmx_helper_bgx_port_init(int xipd_port, int phy_pres);
void cvmx_helper_bgx_set_jabber(int xiface, unsigned int index, unsigned int size);
int cvmx_helper_bgx_shutdown_port(int xiface, int index);
int cvmx_bgx_set_backpressure_override(int xiface, unsigned int port_mask);
int __cvmx_helper_bgx_fifo_size(int xiface, unsigned int lmac);
/**
* Returns if an interface is RGMII or not
*
* @param xiface xinterface to check
* @param index port index (must be 0 for rgmii)
*
* Return: true if RGMII, false otherwise
*/
static inline bool cvmx_helper_bgx_is_rgmii(int xiface, int index)
{
union cvmx_bgxx_cmrx_config cmr_config;
if (!OCTEON_IS_MODEL(OCTEON_CN73XX) || index != 0)
return false;
cmr_config.u64 = csr_rd(CVMX_BGXX_CMRX_CONFIG(index, xiface));
return cmr_config.s.lmac_type == 5;
}
/**
* Probes the BGX Super Path (SMU/SPU) mode
*
* @param xiface global interface number
* @param index interface index
*
* Return: true, if Super-MAC/PCS mode, false -- otherwise
*/
bool cvmx_helper_bgx_is_smu(int xiface, int index);
/**
* @INTERNAL
* Configure parameters of PAUSE packet.
*
* @param xipd_port Global IPD port (node + IPD port).
* @param smac Source MAC address.
* @param dmac Destination MAC address.
* @param type PAUSE packet type.
* @param time Pause time for PAUSE packets (number of 512 bit-times).
* @param interval Interval between PAUSE packets (number of 512 bit-times).
* Return: Zero on success, negative on failure.
*/
int cvmx_bgx_set_pause_pkt_param(int xipd_port, u64 smac, u64 dmac, unsigned int type,
unsigned int time, unsigned int interval);
/**
* @INTERNAL
* Setup the BGX flow-control mode.
*
* @param xipd_port Global IPD port (node + IPD port).
* @param type Flow-control type/protocol.
* @param mode Flow-control mode.
* Return: Zero on success, negative on failure.
*/
int cvmx_bgx_set_flowctl_mode(int xipd_port, cvmx_qos_proto_t qos, cvmx_qos_pkt_mode_t mode);
/**
* Enables or disables autonegotiation for an interface.
*
* @param xiface interface to set autonegotiation
* @param index port index
* @param enable true to enable autonegotiation, false to disable it
*
* Return: 0 for success, -1 on error.
*/
int cvmx_helper_set_autonegotiation(int xiface, int index, bool enable);
/**
* Enables or disables forward error correction
*
* @param xiface interface
* @param index port index
* @param enable set to true to enable FEC, false to disable
*
* Return: 0 for success, -1 on error
*
* @NOTE: If autonegotiation is enabled then autonegotiation will be
* restarted for negotiating FEC.
*/
int cvmx_helper_set_fec(int xiface, int index, bool enable);
#ifdef CVMX_DUMP_BGX
/**
* Dump BGX configuration for node 0
*/
int cvmx_dump_bgx_config(unsigned int bgx);
/**
* Dump BGX status for node 0
*/
int cvmx_dump_bgx_status(unsigned int bgx);
/**
* Dump BGX configuration
*/
int cvmx_dump_bgx_config_node(unsigned int node, unsigned int bgx);
/**
* Dump BGX status
*/
int cvmx_dump_bgx_status_node(unsigned int node, unsigned int bgx);
#endif
#endif
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