diff options
Diffstat (limited to 'drivers/net/nfp/nfpcore/nfp_nsp.h')
| -rw-r--r-- | drivers/net/nfp/nfpcore/nfp_nsp.h | 304 |
1 files changed, 304 insertions, 0 deletions
diff --git a/drivers/net/nfp/nfpcore/nfp_nsp.h b/drivers/net/nfp/nfpcore/nfp_nsp.h new file mode 100644 index 00000000..c9c7b0d0 --- /dev/null +++ b/drivers/net/nfp/nfpcore/nfp_nsp.h @@ -0,0 +1,304 @@ +/* SPDX-License-Identifier: BSD-3-Clause + * Copyright(c) 2018 Netronome Systems, Inc. + * All rights reserved. + */ + +#ifndef NSP_NSP_H +#define NSP_NSP_H 1 + +#include "nfp_cpp.h" +#include "nfp_nsp.h" + +#define GENMASK_ULL(h, l) \ + (((~0ULL) - (1ULL << (l)) + 1) & \ + (~0ULL >> (64 - 1 - (h)))) + +#define __bf_shf(x) (__builtin_ffsll(x) - 1) + +#define FIELD_GET(_mask, _reg) \ + (__extension__ ({ \ + typeof(_mask) _x = (_mask); \ + (typeof(_x))(((_reg) & (_x)) >> __bf_shf(_x)); \ + })) + +#define FIELD_FIT(_mask, _val) \ + (__extension__ ({ \ + typeof(_mask) _x = (_mask); \ + !((((typeof(_x))_val) << __bf_shf(_x)) & ~(_x)); \ + })) + +#define FIELD_PREP(_mask, _val) \ + (__extension__ ({ \ + typeof(_mask) _x = (_mask); \ + ((typeof(_x))(_val) << __bf_shf(_x)) & (_x); \ + })) + +/* Offsets relative to the CSR base */ +#define NSP_STATUS 0x00 +#define NSP_STATUS_MAGIC GENMASK_ULL(63, 48) +#define NSP_STATUS_MAJOR GENMASK_ULL(47, 44) +#define NSP_STATUS_MINOR GENMASK_ULL(43, 32) +#define NSP_STATUS_CODE GENMASK_ULL(31, 16) +#define NSP_STATUS_RESULT GENMASK_ULL(15, 8) +#define NSP_STATUS_BUSY BIT_ULL(0) + +#define NSP_COMMAND 0x08 +#define NSP_COMMAND_OPTION GENMASK_ULL(63, 32) +#define NSP_COMMAND_CODE GENMASK_ULL(31, 16) +#define NSP_COMMAND_START BIT_ULL(0) + +/* CPP address to retrieve the data from */ +#define NSP_BUFFER 0x10 +#define NSP_BUFFER_CPP GENMASK_ULL(63, 40) +#define NSP_BUFFER_PCIE GENMASK_ULL(39, 38) +#define NSP_BUFFER_ADDRESS GENMASK_ULL(37, 0) + +#define NSP_DFLT_BUFFER 0x18 + +#define NSP_DFLT_BUFFER_CONFIG 0x20 +#define NSP_DFLT_BUFFER_SIZE_MB GENMASK_ULL(7, 0) + +#define NSP_MAGIC 0xab10 +#define NSP_MAJOR 0 +#define NSP_MINOR 8 + +#define NSP_CODE_MAJOR GENMASK(15, 12) +#define NSP_CODE_MINOR GENMASK(11, 0) + +enum nfp_nsp_cmd { + SPCODE_NOOP = 0, /* No operation */ + SPCODE_SOFT_RESET = 1, /* Soft reset the NFP */ + SPCODE_FW_DEFAULT = 2, /* Load default (UNDI) FW */ + SPCODE_PHY_INIT = 3, /* Initialize the PHY */ + SPCODE_MAC_INIT = 4, /* Initialize the MAC */ + SPCODE_PHY_RXADAPT = 5, /* Re-run PHY RX Adaptation */ + SPCODE_FW_LOAD = 6, /* Load fw from buffer, len in option */ + SPCODE_ETH_RESCAN = 7, /* Rescan ETHs, write ETH_TABLE to buf */ + SPCODE_ETH_CONTROL = 8, /* Update media config from buffer */ + SPCODE_NSP_SENSORS = 12, /* Read NSP sensor(s) */ + SPCODE_NSP_IDENTIFY = 13, /* Read NSP version */ +}; + +static const struct { + int code; + const char *msg; +} nsp_errors[] = { + { 6010, "could not map to phy for port" }, + { 6011, "not an allowed rate/lanes for port" }, + { 6012, "not an allowed rate/lanes for port" }, + { 6013, "high/low error, change other port first" }, + { 6014, "config not found in flash" }, +}; + +struct nfp_nsp { + struct nfp_cpp *cpp; + struct nfp_resource *res; + struct { + uint16_t major; + uint16_t minor; + } ver; + + /* Eth table config state */ + int modified; + unsigned int idx; + void *entries; +}; + +struct nfp_nsp *nfp_nsp_open(struct nfp_cpp *cpp); +void nfp_nsp_close(struct nfp_nsp *state); +uint16_t nfp_nsp_get_abi_ver_major(struct nfp_nsp *state); +uint16_t nfp_nsp_get_abi_ver_minor(struct nfp_nsp *state); +int nfp_nsp_wait(struct nfp_nsp *state); +int nfp_nsp_device_soft_reset(struct nfp_nsp *state); +int nfp_nsp_load_fw(struct nfp_nsp *state, void *buf, unsigned int size); +int nfp_nsp_mac_reinit(struct nfp_nsp *state); +int nfp_nsp_read_identify(struct nfp_nsp *state, void *buf, unsigned int size); +int nfp_nsp_read_sensors(struct nfp_nsp *state, unsigned int sensor_mask, + void *buf, unsigned int size); + +static inline int nfp_nsp_has_mac_reinit(struct nfp_nsp *state) +{ + return nfp_nsp_get_abi_ver_minor(state) > 20; +} + +enum nfp_eth_interface { + NFP_INTERFACE_NONE = 0, + NFP_INTERFACE_SFP = 1, + NFP_INTERFACE_SFPP = 10, + NFP_INTERFACE_SFP28 = 28, + NFP_INTERFACE_QSFP = 40, + NFP_INTERFACE_CXP = 100, + NFP_INTERFACE_QSFP28 = 112, +}; + +enum nfp_eth_media { + NFP_MEDIA_DAC_PASSIVE = 0, + NFP_MEDIA_DAC_ACTIVE, + NFP_MEDIA_FIBRE, +}; + +enum nfp_eth_aneg { + NFP_ANEG_AUTO = 0, + NFP_ANEG_SEARCH, + NFP_ANEG_25G_CONSORTIUM, + NFP_ANEG_25G_IEEE, + NFP_ANEG_DISABLED, +}; + +enum nfp_eth_fec { + NFP_FEC_AUTO_BIT = 0, + NFP_FEC_BASER_BIT, + NFP_FEC_REED_SOLOMON_BIT, + NFP_FEC_DISABLED_BIT, +}; + +#define NFP_FEC_AUTO BIT(NFP_FEC_AUTO_BIT) +#define NFP_FEC_BASER BIT(NFP_FEC_BASER_BIT) +#define NFP_FEC_REED_SOLOMON BIT(NFP_FEC_REED_SOLOMON_BIT) +#define NFP_FEC_DISABLED BIT(NFP_FEC_DISABLED_BIT) + +#define ETH_ALEN 6 + +/** + * struct nfp_eth_table - ETH table information + * @count: number of table entries + * @max_index: max of @index fields of all @ports + * @ports: table of ports + * + * @eth_index: port index according to legacy ethX numbering + * @index: chip-wide first channel index + * @nbi: NBI index + * @base: first channel index (within NBI) + * @lanes: number of channels + * @speed: interface speed (in Mbps) + * @interface: interface (module) plugged in + * @media: media type of the @interface + * @fec: forward error correction mode + * @aneg: auto negotiation mode + * @mac_addr: interface MAC address + * @label_port: port id + * @label_subport: id of interface within port (for split ports) + * @enabled: is enabled? + * @tx_enabled: is TX enabled? + * @rx_enabled: is RX enabled? + * @override_changed: is media reconfig pending? + * + * @port_type: one of %PORT_* defines for ethtool + * @port_lanes: total number of lanes on the port (sum of lanes of all subports) + * @is_split: is interface part of a split port + * @fec_modes_supported: bitmap of FEC modes supported + */ +struct nfp_eth_table { + unsigned int count; + unsigned int max_index; + struct nfp_eth_table_port { + unsigned int eth_index; + unsigned int index; + unsigned int nbi; + unsigned int base; + unsigned int lanes; + unsigned int speed; + + unsigned int interface; + enum nfp_eth_media media; + + enum nfp_eth_fec fec; + enum nfp_eth_aneg aneg; + + uint8_t mac_addr[ETH_ALEN]; + + uint8_t label_port; + uint8_t label_subport; + + int enabled; + int tx_enabled; + int rx_enabled; + + int override_changed; + + /* Computed fields */ + uint8_t port_type; + + unsigned int port_lanes; + + int is_split; + + unsigned int fec_modes_supported; + } ports[0]; +}; + +struct nfp_eth_table *nfp_eth_read_ports(struct nfp_cpp *cpp); + +int nfp_eth_set_mod_enable(struct nfp_cpp *cpp, unsigned int idx, int enable); +int nfp_eth_set_configured(struct nfp_cpp *cpp, unsigned int idx, + int configed); +int +nfp_eth_set_fec(struct nfp_cpp *cpp, unsigned int idx, enum nfp_eth_fec mode); + +int nfp_nsp_read_eth_table(struct nfp_nsp *state, void *buf, unsigned int size); +int nfp_nsp_write_eth_table(struct nfp_nsp *state, const void *buf, + unsigned int size); +void nfp_nsp_config_set_state(struct nfp_nsp *state, void *entries, + unsigned int idx); +void nfp_nsp_config_clear_state(struct nfp_nsp *state); +void nfp_nsp_config_set_modified(struct nfp_nsp *state, int modified); +void *nfp_nsp_config_entries(struct nfp_nsp *state); +int nfp_nsp_config_modified(struct nfp_nsp *state); +unsigned int nfp_nsp_config_idx(struct nfp_nsp *state); + +static inline int nfp_eth_can_support_fec(struct nfp_eth_table_port *eth_port) +{ + return !!eth_port->fec_modes_supported; +} + +static inline unsigned int +nfp_eth_supported_fec_modes(struct nfp_eth_table_port *eth_port) +{ + return eth_port->fec_modes_supported; +} + +struct nfp_nsp *nfp_eth_config_start(struct nfp_cpp *cpp, unsigned int idx); +int nfp_eth_config_commit_end(struct nfp_nsp *nsp); +void nfp_eth_config_cleanup_end(struct nfp_nsp *nsp); + +int __nfp_eth_set_aneg(struct nfp_nsp *nsp, enum nfp_eth_aneg mode); +int __nfp_eth_set_speed(struct nfp_nsp *nsp, unsigned int speed); +int __nfp_eth_set_split(struct nfp_nsp *nsp, unsigned int lanes); + +/** + * struct nfp_nsp_identify - NSP static information + * @version: opaque version string + * @flags: version flags + * @br_primary: branch id of primary bootloader + * @br_secondary: branch id of secondary bootloader + * @br_nsp: branch id of NSP + * @primary: version of primarary bootloader + * @secondary: version id of secondary bootloader + * @nsp: version id of NSP + * @sensor_mask: mask of present sensors available on NIC + */ +struct nfp_nsp_identify { + char version[40]; + uint8_t flags; + uint8_t br_primary; + uint8_t br_secondary; + uint8_t br_nsp; + uint16_t primary; + uint16_t secondary; + uint16_t nsp; + uint64_t sensor_mask; +}; + +struct nfp_nsp_identify *__nfp_nsp_identify(struct nfp_nsp *nsp); + +enum nfp_nsp_sensor_id { + NFP_SENSOR_CHIP_TEMPERATURE, + NFP_SENSOR_ASSEMBLY_POWER, + NFP_SENSOR_ASSEMBLY_12V_POWER, + NFP_SENSOR_ASSEMBLY_3V3_POWER, +}; + +int nfp_hwmon_read_sensor(struct nfp_cpp *cpp, enum nfp_nsp_sensor_id id, + long *val); + +#endif |