| #ifndef __CB_BDK_HAL_IF_BDK_IF_H__ |
| #define __CB_BDK_HAL_IF_BDK_IF_H__ |
| /***********************license start*********************************** |
| * Copyright (c) 2003-2017 Cavium Inc. (support@cavium.com). All rights |
| * reserved. |
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| * |
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| * notice, this list of conditions and the following disclaimer. |
| * |
| * * Redistributions in binary form must reproduce the above |
| * copyright notice, this list of conditions and the following |
| * disclaimer in the documentation and/or other materials provided |
| * with the distribution. |
| * |
| * * Neither the name of Cavium Inc. nor the names of |
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| * derived from this software without specific prior written |
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| * |
| * This Software, including technical data, may be subject to U.S. export |
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| * TO THE MAXIMUM EXTENT PERMITTED BY LAW, THE SOFTWARE IS PROVIDED "AS IS" |
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| ***********************license end**************************************/ |
| |
| /** |
| * @file |
| * |
| * Interface to external interfaces (SGMII, XAUI, etc) |
| * |
| * <hr>$Revision: 45089 $<hr> |
| * |
| * @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 |