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u-boot-brain/arch/mips/mach-octeon/include/mach/cvmx-helper.h

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/* SPDX-License-Identifier: GPL-2.0 */
/*
* Copyright (C) 2020 Marvell International Ltd.
*
* Helper functions for common, but complicated tasks.
*/
#ifndef __CVMX_HELPER_H__
#define __CVMX_HELPER_H__
#include "cvmx-wqe.h"
/* Max number of GMXX */
#define CVMX_HELPER_MAX_GMX \
(OCTEON_IS_MODEL(OCTEON_CN78XX) ? \
6 : \
(OCTEON_IS_MODEL(OCTEON_CN68XX) ? \
5 : \
(OCTEON_IS_MODEL(OCTEON_CN73XX) ? \
3 : \
(OCTEON_IS_MODEL(OCTEON_CNF75XX) ? 1 : 2))))
#define CVMX_HELPER_CSR_INIT0 \
0 /* Do not change as
CVMX_HELPER_WRITE_CSR()
assumes it */
#define CVMX_HELPER_CSR_INIT_READ -1
/*
* CVMX_HELPER_WRITE_CSR--set a field in a CSR with a value.
*
* @param chcsr_init initial value of the csr (CVMX_HELPER_CSR_INIT_READ
* means to use the existing csr value as the
* initial value.)
* @param chcsr_csr the name of the csr
* @param chcsr_type the type of the csr (see the -defs.h)
* @param chcsr_chip the chip for the csr/field
* @param chcsr_fld the field in the csr
* @param chcsr_val the value for field
*/
#define CVMX_HELPER_WRITE_CSR(chcsr_init, chcsr_csr, chcsr_type, chcsr_chip, chcsr_fld, chcsr_val) \
do { \
chcsr_type csr; \
if ((chcsr_init) == CVMX_HELPER_CSR_INIT_READ) \
csr.u64 = cvmx_read_csr(chcsr_csr); \
else \
csr.u64 = (chcsr_init); \
csr.chcsr_chip.chcsr_fld = (chcsr_val); \
cvmx_write_csr((chcsr_csr), csr.u64); \
} while (0)
/*
* CVMX_HELPER_WRITE_CSR0--set a field in a CSR with the initial value of 0
*/
#define CVMX_HELPER_WRITE_CSR0(chcsr_csr, chcsr_type, chcsr_chip, chcsr_fld, chcsr_val) \
CVMX_HELPER_WRITE_CSR(CVMX_HELPER_CSR_INIT0, chcsr_csr, chcsr_type, chcsr_chip, chcsr_fld, \
chcsr_val)
/*
* CVMX_HELPER_WRITE_CSR1--set a field in a CSR with the initial value of
* the CSR's current value.
*/
#define CVMX_HELPER_WRITE_CSR1(chcsr_csr, chcsr_type, chcsr_chip, chcsr_fld, chcsr_val) \
CVMX_HELPER_WRITE_CSR(CVMX_HELPER_CSR_INIT_READ, chcsr_csr, chcsr_type, chcsr_chip, \
chcsr_fld, chcsr_val)
/* These flags are passed to __cvmx_helper_packet_hardware_enable */
typedef enum {
CVMX_HELPER_INTERFACE_MODE_DISABLED,
CVMX_HELPER_INTERFACE_MODE_RGMII,
CVMX_HELPER_INTERFACE_MODE_GMII,
CVMX_HELPER_INTERFACE_MODE_SPI,
CVMX_HELPER_INTERFACE_MODE_PCIE,
CVMX_HELPER_INTERFACE_MODE_XAUI,
CVMX_HELPER_INTERFACE_MODE_SGMII,
CVMX_HELPER_INTERFACE_MODE_PICMG,
CVMX_HELPER_INTERFACE_MODE_NPI,
CVMX_HELPER_INTERFACE_MODE_LOOP,
CVMX_HELPER_INTERFACE_MODE_SRIO,
CVMX_HELPER_INTERFACE_MODE_ILK,
CVMX_HELPER_INTERFACE_MODE_RXAUI,
CVMX_HELPER_INTERFACE_MODE_QSGMII,
CVMX_HELPER_INTERFACE_MODE_AGL,
CVMX_HELPER_INTERFACE_MODE_XLAUI,
CVMX_HELPER_INTERFACE_MODE_XFI,
CVMX_HELPER_INTERFACE_MODE_10G_KR,
CVMX_HELPER_INTERFACE_MODE_40G_KR4,
CVMX_HELPER_INTERFACE_MODE_MIXED,
} cvmx_helper_interface_mode_t;
typedef union cvmx_helper_link_info {
u64 u64;
struct {
u64 reserved_20_63 : 43;
u64 init_success : 1;
u64 link_up : 1;
u64 full_duplex : 1;
u64 speed : 18;
} s;
} cvmx_helper_link_info_t;
/**
* Sets the back pressure configuration in internal data structure.
* @param backpressure_dis disable/enable backpressure
*/
void cvmx_rgmii_set_back_pressure(u64 backpressure_dis);
#include "cvmx-helper-fpa.h"
#include "cvmx-helper-agl.h"
#include "cvmx-helper-errata.h"
#include "cvmx-helper-ilk.h"
#include "cvmx-helper-loop.h"
#include "cvmx-helper-npi.h"
#include "cvmx-helper-rgmii.h"
#include "cvmx-helper-sgmii.h"
#include "cvmx-helper-spi.h"
#include "cvmx-helper-srio.h"
#include "cvmx-helper-util.h"
#include "cvmx-helper-xaui.h"
#include "cvmx-fpa3.h"
enum cvmx_pko_padding {
CVMX_PKO_PADDING_NONE = 0,
CVMX_PKO_PADDING_60 = 1,
};
/**
* This function enables the IPD and also enables the packet interfaces.
* The packet interfaces (RGMII and SPI) must be enabled after the
* IPD. This should be called by the user program after any additional
* IPD configuration changes are made if CVMX_HELPER_ENABLE_IPD
* is not set in the executive-config.h file.
*
* @return 0 on success
* -1 on failure
*/
int cvmx_helper_ipd_and_packet_input_enable_node(int node);
int cvmx_helper_ipd_and_packet_input_enable(void);
/**
* Initialize and allocate memory for the SSO.
*
* @param wqe_entries The maximum number of work queue entries to be
* supported.
*
* @return Zero on success, non-zero on failure.
*/
int cvmx_helper_initialize_sso(int wqe_entries);
/**
* Initialize and allocate memory for the SSO on a specific node.
*
* @param node Node SSO to initialize
* @param wqe_entries The maximum number of work queue entries to be
* supported.
*
* @return Zero on success, non-zero on failure.
*/
int cvmx_helper_initialize_sso_node(unsigned int node, int wqe_entries);
/**
* Undo the effect of cvmx_helper_initialize_sso().
*
* @return Zero on success, non-zero on failure.
*/
int cvmx_helper_uninitialize_sso(void);
/**
* Undo the effect of cvmx_helper_initialize_sso_node().
*
* @param node Node SSO to initialize
*
* @return Zero on success, non-zero on failure.
*/
int cvmx_helper_uninitialize_sso_node(unsigned int node);
/**
* Initialize the PIP, IPD, and PKO hardware to support
* simple priority based queues for the ethernet ports. Each
* port is configured with a number of priority queues based
* on CVMX_PKO_QUEUES_PER_PORT_* where each queue is lower
* priority than the previous.
*
* @return Zero on success, non-zero on failure
*/
int cvmx_helper_initialize_packet_io_global(void);
/**
* Initialize the PIP, IPD, and PKO hardware to support
* simple priority based queues for the ethernet ports. Each
* port is configured with a number of priority queues based
* on CVMX_PKO_QUEUES_PER_PORT_* where each queue is lower
* priority than the previous.
*
* @param node Node on which to initialize packet io hardware
*
* @return Zero on success, non-zero on failure
*/
int cvmx_helper_initialize_packet_io_node(unsigned int node);
/**
* Does core local initialization for packet io
*
* @return Zero on success, non-zero on failure
*/
int cvmx_helper_initialize_packet_io_local(void);
/**
* Undo the initialization performed in
* cvmx_helper_initialize_packet_io_global(). After calling this routine and the
* local version on each core, packet IO for Octeon will be disabled and placed
* in the initial reset state. It will then be safe to call the initialize
* later on. Note that this routine does not empty the FPA pools. It frees all
* buffers used by the packet IO hardware to the FPA so a function emptying the
* FPA after shutdown should find all packet buffers in the FPA.
*
* @return Zero on success, negative on failure.
*/
int cvmx_helper_shutdown_packet_io_global(void);
/**
* Helper function for 78xx global packet IO shutdown
*/
int cvmx_helper_shutdown_packet_io_global_cn78xx(int node);
/**
* Does core local shutdown of packet io
*
* @return Zero on success, non-zero on failure
*/
int cvmx_helper_shutdown_packet_io_local(void);
/**
* Returns the number of ports on the given interface.
* The interface must be initialized before the port count
* can be returned.
*
* @param interface Which interface to return port count for.
*
* @return Port count for interface
* -1 for uninitialized interface
*/
int cvmx_helper_ports_on_interface(int interface);
/**
* Return the number of interfaces the chip has. Each interface
* may have multiple ports. Most chips support two interfaces,
* but the CNX0XX and CNX1XX are exceptions. These only support
* one interface.
*
* @return Number of interfaces on chip
*/
int cvmx_helper_get_number_of_interfaces(void);
/**
* Get the operating mode of an interface. Depending on the Octeon
* chip and configuration, this function returns an enumeration
* of the type of packet I/O supported by an interface.
*
* @param xiface Interface to probe
*
* @return Mode of the interface. Unknown or unsupported interfaces return
* DISABLED.
*/
cvmx_helper_interface_mode_t cvmx_helper_interface_get_mode(int xiface);
/**
* Auto configure an IPD/PKO port link state and speed. This
* function basically does the equivalent of:
* cvmx_helper_link_set(ipd_port, cvmx_helper_link_get(ipd_port));
*
* @param ipd_port IPD/PKO port to auto configure
*
* @return Link state after configure
*/
cvmx_helper_link_info_t cvmx_helper_link_autoconf(int ipd_port);
/**
* 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().
*
* @param ipd_port IPD/PKO port to query
*
* @return Link state
*/
cvmx_helper_link_info_t cvmx_helper_link_get(int ipd_port);
/**
* 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.
*
* @param ipd_port IPD/PKO port to configure
* @param link_info The new link state
*
* @return Zero on success, negative on failure
*/
int cvmx_helper_link_set(int ipd_port, cvmx_helper_link_info_t link_info);
/**
* This function probes an interface to determine the actual number of
* hardware ports connected to it. It does some setup the ports but
* doesn't enable them. The main goal here is to set the global
* interface_port_count[interface] correctly. Final hardware setup of
* the ports will be performed later.
*
* @param xiface Interface to probe
*
* @return Zero on success, negative on failure
*/
int cvmx_helper_interface_probe(int xiface);
/**
* Determine the actual number of hardware ports connected to an
* interface. It doesn't setup the ports or enable them.
*
* @param xiface Interface to enumerate
*
* @return Zero on success, negative on failure
*/
int cvmx_helper_interface_enumerate(int xiface);
/**
* 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.
*
* @param ipd_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_configure_loopback(int ipd_port, int enable_internal, int enable_external);
/**
* Returns the number of ports on the given interface.
*
* @param interface Which interface to return port count for.
*
* @return Port count for interface
* -1 for uninitialized interface
*/
int __cvmx_helper_early_ports_on_interface(int interface);
void cvmx_helper_setup_simulator_io_buffer_counts(int node, int num_packet_buffers,
int pko_buffers);
void cvmx_helper_set_wqe_no_ptr_mode(bool mode);
void cvmx_helper_set_pkt_wqe_le_mode(bool mode);
int cvmx_helper_shutdown_fpa_pools(int node);
/**
* Convert Ethernet QoS/PCP value to system-level priority
*
* In OCTEON, highest priority is 0, in Ethernet 802.1p PCP field
* the highest priority is 7, lowest is 1. Here is the full conversion
* table between QoS (PCP) and OCTEON priority values, per IEEE 802.1Q-2005:
*
* PCP Priority Acronym Traffic Types
* 1 7 (lowest) BK Background
* 0 6 BE Best Effort
* 2 5 EE Excellent Effort
* 3 4 CA Critical Applications
* 4 3 VI Video, < 100 ms latency and jitter
* 5 2 VO Voice, < 10 ms latency and jitter
* 6 1 IC Internetwork Control
* 7 0 (highest) NC Network Control
*/
static inline u8 cvmx_helper_qos2prio(u8 qos)
{
static const unsigned int pcp_map = 6 << (4 * 0) | 7 << (4 * 1) | 5 << (4 * 2) |
4 << (4 * 3) | 3 << (4 * 4) | 2 << (4 * 5) |
1 << (4 * 6) | 0 << (4 * 7);
return (pcp_map >> ((qos & 0x7) << 2)) & 0x7;
}
/**
* Convert system-level priority to Ethernet QoS/PCP value
*
* Calculate the reverse of cvmx_helper_qos2prio() per IEEE 802.1Q-2005.
*/
static inline u8 cvmx_helper_prio2qos(u8 prio)
{
static const unsigned int prio_map = 7 << (4 * 0) | 6 << (4 * 1) | 5 << (4 * 2) |
4 << (4 * 3) | 3 << (4 * 4) | 2 << (4 * 5) |
0 << (4 * 6) | 1 << (4 * 7);
return (prio_map >> ((prio & 0x7) << 2)) & 0x7;
}
/**
* @INTERNAL
* Get the number of ipd_ports on an interface.
*
* @param xiface
*
* @return the number of ipd_ports on the interface and -1 for error.
*/
int __cvmx_helper_get_num_ipd_ports(int xiface);
enum cvmx_pko_padding __cvmx_helper_get_pko_padding(int xiface);
/**
* @INTERNAL
*
* @param xiface
* @param num_ipd_ports is the number of ipd_ports on the interface
* @param has_fcs indicates if PKO does FCS for the ports on this
* @param pad The padding that PKO should apply.
* interface.
*
* @return 0 for success and -1 for failure
*/
int __cvmx_helper_init_interface(int xiface, int num_ipd_ports, int has_fcs,
enum cvmx_pko_padding pad);
void __cvmx_helper_shutdown_interfaces(void);
/*
* @INTERNAL
* Enable packet input/output from the hardware. This function is
* called after all internal setup is complete and IPD is enabled.
* After this function completes, packets will be accepted from the
* hardware ports. PKO should still be disabled to make sure packets
* aren't sent out partially setup hardware.
*
* @return Zero on success, negative on failure
*/
int __cvmx_helper_packet_hardware_enable(int xiface);
/*
* @INTERNAL
*
* @return 0 for success and -1 for failure
*/
int __cvmx_helper_set_link_info(int xiface, int index, cvmx_helper_link_info_t link_info);
/**
* @INTERNAL
*
* @param xiface
* @param port
*
* @return valid link_info on success or -1 on failure
*/
cvmx_helper_link_info_t __cvmx_helper_get_link_info(int xiface, int port);
/**
* @INTERNAL
*
* @param xiface
*
* @return 0 if PKO does not do FCS and 1 otherwise.
*/
int __cvmx_helper_get_has_fcs(int xiface);
void *cvmx_helper_mem_alloc(int node, u64 alloc_size, u64 align);
void cvmx_helper_mem_free(void *buffer, u64 size);
#define CVMX_QOS_NUM 8 /* Number of QoS priority classes */
typedef enum {
CVMX_QOS_PROTO_NONE, /* Disable QOS */
CVMX_QOS_PROTO_PAUSE, /* IEEE 802.3 PAUSE */
CVMX_QOS_PROTO_PFC /* IEEE 802.1Qbb-2011 PFC/CBFC */
} cvmx_qos_proto_t;
typedef enum {
CVMX_QOS_PKT_MODE_HWONLY, /* PAUSE packets processed in Hardware only. */
CVMX_QOS_PKT_MODE_SWONLY, /* PAUSE packets processed in Software only. */
CVMX_QOS_PKT_MODE_HWSW, /* PAUSE packets processed in both HW and SW. */
CVMX_QOS_PKT_MODE_DROP /* Ignore PAUSE packets. */
} cvmx_qos_pkt_mode_t;
typedef enum {
CVMX_QOS_POOL_PER_PORT, /* Pool per Physical Port */
CVMX_QOS_POOL_PER_CLASS /* Pool per Priority Class */
} cvmx_qos_pool_mode_t;
typedef struct cvmx_qos_config {
cvmx_qos_proto_t qos_proto; /* QoS protocol.*/
cvmx_qos_pkt_mode_t pkt_mode; /* PAUSE processing mode.*/
cvmx_qos_pool_mode_t pool_mode; /* FPA Pool mode.*/
int pktbuf_size; /* Packet buffer size */
int aura_size; /* Number of buffers */
int drop_thresh[CVMX_QOS_NUM]; /* DROP threashold in % */
int red_thresh[CVMX_QOS_NUM]; /* RED threashold in % */
int bp_thresh[CVMX_QOS_NUM]; /* BP threashold in % */
int groups[CVMX_QOS_NUM]; /* Base SSO group for QOS group set. */
int group_prio[CVMX_QOS_NUM]; /* SSO group priorities.*/
int pko_pfc_en; /* Enable PKO PFC layout. */
int vlan_num; /* VLAN number: 0 = 1st or 1 = 2nd. */
int p_time; /* PAUSE packets send time (in number of 512 bit-times).*/
int p_interval; /* PAUSE packet send interval (in number of 512 bit-times).*/
/* Internal parameters (should not be used by application developer): */
cvmx_fpa3_pool_t gpools[CVMX_QOS_NUM]; /* Pool to use.*/
cvmx_fpa3_gaura_t gauras[CVMX_QOS_NUM]; /* Global auras -- one per priority class. */
int bpids[CVMX_QOS_NUM]; /* PKI BPID.*/
int qpg_base; /* QPG Table base index.*/
} cvmx_qos_config_t;
/**
* Initialize QoS configuraiton with the SDK defaults.
*
* @param qos_cfg User QOS configuration parameters.
* @return Zero on success, negative number otherwise.
*/
int cvmx_helper_qos_config_init(cvmx_qos_proto_t qos_proto, cvmx_qos_config_t *qos_cfg);
/**
* Update the user static processor configuration.
* It should be done before any initialization of the DP units is performed.
*
* @param xipdport Global IPD port
* @param qos_cfg User QOS configuration parameters.
* @return Zero on success, negative number otherwise.
*/
int cvmx_helper_qos_port_config_update(int xipdport, cvmx_qos_config_t *qos_cfg);
/**
* Configure the Data Path components for QOS function.
* This function is called after the global processor initialization is
* performed.
*
* @param xipdport Global IPD port
* @param qos_cfg User QOS configuration parameters.
* @return Zero on success, negative number otherwise.
*/
int cvmx_helper_qos_port_setup(int xipdport, cvmx_qos_config_t *qos_cfg);
/**
* Configure the SSO for QOS function.
* This function is called after the global processor initialization is
* performed.
*
* @param node OCTEON3 node number.
* @param qos_cfg User QOS configuration parameters.
* @return Zero on success, negative number otherwise.
*/
int cvmx_helper_qos_sso_setup(int node, cvmx_qos_config_t *qos_cfg);
/**
* Return PKI_CHAN_E channel name based on the provided index.
* @param chan Channel index.
* @param namebuf Name buffer (output).
* @param buflen Name maximum length.
* @return Length of name (in bytes) on success, negative number otherwise.
*/
int cvmx_helper_get_chan_e_name(int chan, char *namebuf, int buflen);
#ifdef CVMX_DUMP_DIAGNOSTICS
void cvmx_helper_dump_for_diagnostics(int node);
#endif
#endif /* __CVMX_HELPER_H__ */
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