#ifndef __CB_BDK_HAL_IF_BDK_IF_H__
#define __CB_BDK_HAL_IF_BDK_IF_H__
/***********************license start***********************************
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/**
* @file
*
* Interface to external interfaces (SGMII, XAUI, etc)
*
*
$Revision: 45089 $
*
* @defgroup packetio Packet Input / Output
* @addtogroup packetio
* @{
*/
#define BDK_BGX_PKI 0 /* When defined and non zero BGX will use PKI interface for receive */
#define BDK_BGX_PKO 0 /* When defined and non zero BGX will use PKO interface for transmit */
#define BDK_IF_MAX_GATHER 12 /* CN88XX RX supports 12 at most */
/* PHY address encoding:
Bits[31:24]: Node ID, 0xff for node the ethernet device is on
Bits[23:16]: Only used for TWSI
Bits[15:12]: PHY connection type (0=MDIO, 1=Fixed, 2=TWSI)
For MDIO:
Bits[31:24]: Node ID, 0xff for node the ethernet device is on
Bits[23:16]: 0
Bits[15:12]: 0=MDIO
Bits[11:8]: MDIO bus number
Bits[7:0]: MDIO address
For Fixed:
Bits[31:24]: 0
Bits[23:16]: Zero
Bits[15:12]: 1=Fixed
Bits[11:0]: 0 = 1Gb, 1 = 100Mb
For TWSI:
Bits[31:24]: Node ID, 0xff for node the ethernet device is on
Bits[23:16]: TWSI internal address width in bytes (0-2)
Bits[15:12]: 2=TWSI
Bits[11:8]: TWSI bus number
Bits[7:0]: TWSI address
*/
#define BDK_IF_PHY_TYPE_MASK 0xf000
#define BDK_IF_PHY_MDIO 0x0000
#define BDK_IF_PHY_TWSI 0x2000
#define BDK_IF_PHY_FIXED_1GB 0x1000
#define BDK_IF_PHY_FIXED_100MB 0x1001
/**
* Enumeration of different interfaces.
*/
typedef enum
{
BDK_IF_BGX,
BDK_IF_PCIE,
BDK_IF_FAKE,
BDK_IF_LBK,
BDK_IF_RGX,
BDK_IF_CGX,
__BDK_IF_LAST
} bdk_if_t;
typedef enum
{
BDK_IF_FLAGS_HAS_FCS = 1, /* The device adds and removes an FCS. On thunder we assume the hardware strips FCS */
BDK_IF_FLAGS_ENABLED = 2,
} bdk_if_flags_t;
typedef union
{
uint64_t u64;
struct
{
uint64_t reserved2 : 32;
unsigned speed : 24;
unsigned lanes : 6;
int full_duplex : 1;
int up : 1;
} s;
} bdk_if_link_t;
typedef struct
{
uint64_t dropped_octets;
uint64_t dropped_packets;
uint64_t octets;
uint64_t packets;
uint64_t errors;
} __bdk_if_stats_t;
typedef struct
{
__bdk_if_stats_t rx;
__bdk_if_stats_t tx;
} bdk_if_stats_t;
typedef struct __bdk_if_port
{
bdk_if_t iftype : 8;
bdk_node_t node : 8;
int interface : 8;
int index : 8;
bdk_if_flags_t flags : 8;
int pknd : 8; /* NIC/PKI packet kind */
int16_t pki_channel; /* PKI/SSO channel number, or -1 if not used */
int16_t pki_dstat; /* PKI DSTAT ID used for receive stats */
int16_t pko_queue; /* PKO DQ number, or -1 if not used */
int16_t aura; /* FPA aura number */
int16_t nic_id; /* NIC ID in use, or -1 if not used. Encoded as NIC_VF * 8 + index */
void * receiver; /* This is a bdk_if_packet_receiver_t */
void * receiver_arg;
bdk_if_stats_t stats;
bdk_if_link_t link_info;
char name[16];
struct __bdk_if_port *next;
struct __bdk_if_port *poll_next;
char priv[0];
} __bdk_if_port_t;
typedef __bdk_if_port_t *bdk_if_handle_t;
/**
* Format of each gather/segment entry in a packet. This is unrelated to
* the underlying hardware format, but is designed to be simple to munge
* into a hardware format. Note that only 48 bits are stored for the
* address. This address is a physical address not mean for SMMU translation.
*/
typedef union
{
uint64_t u;
struct
{
#if __BYTE_ORDER == __BIG_ENDIAN
uint64_t size : 16;
uint64_t address : 48;
#else
uint64_t address : 48;
uint64_t size : 16;
#endif
} s;
} bdk_packet_ptr_t;
typedef enum
{
BDK_IF_TYPE_UNKNOWN, /* Not set */
BDK_IF_TYPE_UDP4, /* IPv4 + UDP */
BDK_IF_TYPE_TCP4, /* IPv4 + TCP */
} bdk_if_type_t;
/**
* The packet format for the BDK. This structure is designed to be exactly
* one cache line to promote alignment and avoid false aliasing. Note that the
* packet structure is independent from the packet data and can have a shorter
* lifespan. The packet structure is normally on the stack and disappears on
* stack unwind. Code requiring its data to stick around needs to copy it, but
* not the data in the gather list.
*/
typedef struct
{
bdk_if_handle_t if_handle; /* Handle to interface this packet was received on */
int length; /* Length of the packet in bytes */
int segments; /* Number of segments the packet is spread over */
int rx_error; /* Error number when packet was receive or zero for no error */
bdk_if_type_t packet_type : 16; /* Type of the packet, so sender doesn't need to walk packet */
uint16_t mtu; /* MTU for hardware fragment, such as TSO */
uint64_t reserved2; /* Reserved for future use */
bdk_packet_ptr_t packet[BDK_IF_MAX_GATHER]; /* List of segements. Each has a physical address and length */
} bdk_if_packet_t;
typedef enum
{
BDK_IF_LOOPBACK_NONE = 0,
BDK_IF_LOOPBACK_INTERNAL = 1,
BDK_IF_LOOPBACK_EXTERNAL = 2,
BDK_IF_LOOPBACK_INTERNAL_EXTERNAL = 3,
} bdk_if_loopback_t;
typedef void (*bdk_if_packet_receiver_t)(const bdk_if_packet_t *packet, void *arg);
typedef struct
{
int priv_size;
int (*if_num_interfaces)(bdk_node_t node); /* Returns the number of interfaces possible on this chip */
int (*if_num_ports)(bdk_node_t node, int interface); /* For given interface, returns the number of ports on it */
int (*if_probe)(bdk_if_handle_t handle); /* Probe to see if a port exists */
int (*if_init)(bdk_if_handle_t handle); /* One time hardware init */
int (*if_enable)(bdk_if_handle_t handle); /* Enable packet IO. must be called after init */
int (*if_disable)(bdk_if_handle_t handle); /* Disable packet IO */
bdk_if_link_t (*if_link_get)(bdk_if_handle_t handle); /* Get link speed and state */
void (*if_link_set)(bdk_if_handle_t handle, bdk_if_link_t link_info); /* Set link speed and state */
const bdk_if_stats_t *(*if_get_stats)(bdk_if_handle_t handle); /* Get stats */
int (*if_transmit)(bdk_if_handle_t handle, const bdk_if_packet_t *packet); /* TX a packet */
int (*if_loopback)(bdk_if_handle_t handle, bdk_if_loopback_t loopback); /* Configure loopback for the port */
int (*if_get_queue_depth)(bdk_if_handle_t handle); /* Get the current TX queue depth */
uint64_t (*if_get_lane_mask)(bdk_if_handle_t handle); /* Get a mask of the QLM lanes used by this handle */
} __bdk_if_ops_t;
typedef struct
{
int (*init)(void);
uint64_t (*alloc)(int length);
void (*free)(uint64_t address, int length);
} __bdk_if_global_ops_t;
extern int bdk_if_is_configured(void);
extern int bdk_if_num_interfaces(bdk_node_t node, bdk_if_t iftype);
extern int bdk_if_num_ports(bdk_node_t node, bdk_if_t iftype, int interface);
extern bdk_if_handle_t bdk_if_next_port(bdk_if_handle_t handle);
extern int bdk_if_enable(bdk_if_handle_t handle);
extern int bdk_if_disable(bdk_if_handle_t handle);
extern int bdk_if_loopback(bdk_if_handle_t handle, bdk_if_loopback_t loopback);
extern const char *bdk_if_name(bdk_if_handle_t handle);
extern bdk_if_link_t bdk_if_link_get(bdk_if_handle_t handle);
extern bdk_if_link_t bdk_if_link_autoconf(bdk_if_handle_t handle);
extern const bdk_if_stats_t *bdk_if_get_stats(bdk_if_handle_t handle);
extern bdk_if_link_t __bdk_if_phy_get(bdk_node_t dev_node, int phy_addr);
extern int bdk_if_get_queue_depth(bdk_if_handle_t handle);
extern int bdk_if_link_wait_all(uint64_t timeout_us);
extern int bdk_if_phy_setup(bdk_node_t node);
extern int bdk_if_phy_vetesse_setup(bdk_node_t node, int qlm, int mdio_bus, int phy_addr);
extern int bdk_if_phy_marvell_setup(bdk_node_t node, int qlm, int mdio_bus, int phy_addr);
extern int bdk_if_phy_vsc8514_setup(bdk_node_t node, int qlm, int mdio_bus, int phy_addr);
extern int bdk_if_transmit(bdk_if_handle_t handle, bdk_if_packet_t *packet);
extern void bdk_if_register_for_packets(bdk_if_handle_t handle, bdk_if_packet_receiver_t receiver, void *arg);
extern int bdk_if_alloc(bdk_if_packet_t *packet, int length);
extern void bdk_if_free(bdk_if_packet_t *packet);
extern void bdk_if_packet_read(const bdk_if_packet_t *packet, int location, int length, void *data);
extern void bdk_if_packet_write(bdk_if_packet_t *packet, int location, int length, const void *data);
extern uint64_t bdk_update_stat_with_overflow(uint64_t new_value, uint64_t old_value, int bit_size);
extern void __bdk_if_phy_xs_init(bdk_node_t dev_node, int phy_addr);
/**
* Get interface type. Use this function instead of accessing the handle
* directly. The handle is considered private and may change.
*
* @param handle Handle of port to get info for
*
* @return Interface type
*/
static inline bdk_if_t bdk_if_get_type(bdk_if_handle_t handle)
{
return handle->iftype;
}
/**
* Called by each interface driver to process a received packet. After calling
* this function, it is the responsibility of each driver to free any resources
* used by the packet, probably by calling bdk_if_free().
*
* @param packet Packet that was received
*/
static inline void bdk_if_dispatch_packet(const bdk_if_packet_t *packet)
{
void *receiver_arg = packet->if_handle->receiver_arg;
bdk_if_packet_receiver_t receiver = packet->if_handle->receiver;
if (receiver)
receiver(packet, receiver_arg);
}
/**
* Get the base QLM used by this handle. For network interfaces that uses QLMs,
* return the QLM number of lane 0. Note that some network interfaces span multiple
* QLM/DLM. This will return the lowest QLM/DLM number.
*
* @param handle Handle to query
*
* @return QLM/DLM number, or -1 if handle doesn't use SERDES
*/
extern int bdk_if_get_qlm(bdk_if_handle_t handle);
/**
* Get a mask of the QLM/DLM lanes used by this handle. A bit is set for each lane
* used by the interface. Some ports span multiple QLM/DLM. In this case the bits
* set will be wider than the QLM/DLM, signalling that the next QLM/DLM is needed
* too.
*
* @param handle Handle to query
*
* @return Lane mask, or zero if no SERDES lanes are used
*/
extern uint64_t bdk_if_get_lane_mask(bdk_if_handle_t handle);
/** @} */
#endif