diff options
Diffstat (limited to 'drivers/net/ethernet/meta/fbnic/fbnic_mac.h')
| -rw-r--r-- | drivers/net/ethernet/meta/fbnic/fbnic_mac.h | 97 |
1 files changed, 97 insertions, 0 deletions
diff --git a/drivers/net/ethernet/meta/fbnic/fbnic_mac.h b/drivers/net/ethernet/meta/fbnic/fbnic_mac.h new file mode 100644 index 000000000000..86fa06da2b3e --- /dev/null +++ b/drivers/net/ethernet/meta/fbnic/fbnic_mac.h @@ -0,0 +1,97 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* Copyright (c) Meta Platforms, Inc. and affiliates. */ + +#ifndef _FBNIC_MAC_H_ +#define _FBNIC_MAC_H_ + +#include <linux/types.h> + +struct fbnic_dev; + +#define FBNIC_MAX_JUMBO_FRAME_SIZE 9742 + +enum { + FBNIC_LINK_EVENT_NONE = 0, + FBNIC_LINK_EVENT_UP = 1, + FBNIC_LINK_EVENT_DOWN = 2, +}; + +/* Treat the FEC bits as a bitmask laid out as follows: + * Bit 0: RS Enabled + * Bit 1: BASER(Firecode) Enabled + * Bit 2: Retrieve FEC from FW + */ +enum { + FBNIC_FEC_OFF = 0, + FBNIC_FEC_RS = 1, + FBNIC_FEC_BASER = 2, +}; + +/* Treat the AUI modes as a modulation/lanes bitmask: + * Bit 0: Lane Count, 0 = R1, 1 = R2 + * Bit 1: Modulation, 0 = NRZ, 1 = PAM4 + * Bit 2: Unknown Modulation/Lane Configuration + */ +enum { + FBNIC_AUI_25GAUI = 0, /* 25.7812GBd 25.78125 * 1 */ + FBNIC_AUI_LAUI2 = 1, /* 51.5625GBd 25.78128 * 2 */ + FBNIC_AUI_50GAUI1 = 2, /* 53.125GBd 53.125 * 1 */ + FBNIC_AUI_100GAUI2 = 3, /* 106.25GBd 53.125 * 2 */ + FBNIC_AUI_UNKNOWN = 4, +}; + +#define FBNIC_AUI_MODE_R2 (FBNIC_AUI_LAUI2) +#define FBNIC_AUI_MODE_PAM4 (FBNIC_AUI_50GAUI1) + +enum fbnic_sensor_id { + FBNIC_SENSOR_TEMP, /* Temp in millidegrees Centigrade */ + FBNIC_SENSOR_VOLTAGE, /* Voltage in millivolts */ +}; + +/* This structure defines the interface hooks for the MAC. The MAC hooks + * will be configured as a const struct provided with a set of function + * pointers. + * + * void (*init_regs)(struct fbnic_dev *fbd); + * Initialize MAC registers to enable Tx/Rx paths and FIFOs. + * + * void (*pcs_enable)(struct fbnic_dev *fbd); + * Configure and enable PCS to enable link if not already enabled + * void (*pcs_disable)(struct fbnic_dev *fbd); + * Shutdown the link if we are the only consumer of it. + * bool (*pcs_get_link)(struct fbnic_dev *fbd); + * Check PCS link status + * int (*pcs_get_link_event)(struct fbnic_dev *fbd) + * Get the current link event status, reports true if link has + * changed to either FBNIC_LINK_EVENT_DOWN or FBNIC_LINK_EVENT_UP + * + * void (*link_down)(struct fbnic_dev *fbd); + * Configure MAC for link down event + * void (*link_up)(struct fbnic_dev *fbd, bool tx_pause, bool rx_pause); + * Configure MAC for link up event; + * + */ +struct fbnic_mac { + void (*init_regs)(struct fbnic_dev *fbd); + + int (*pcs_enable)(struct fbnic_dev *fbd); + void (*pcs_disable)(struct fbnic_dev *fbd); + bool (*pcs_get_link)(struct fbnic_dev *fbd); + int (*pcs_get_link_event)(struct fbnic_dev *fbd); + + void (*get_eth_mac_stats)(struct fbnic_dev *fbd, bool reset, + struct fbnic_eth_mac_stats *mac_stats); + void (*get_eth_ctrl_stats)(struct fbnic_dev *fbd, bool reset, + struct fbnic_eth_ctrl_stats *ctrl_stats); + void (*get_rmon_stats)(struct fbnic_dev *fbd, bool reset, + struct fbnic_rmon_stats *rmon_stats); + + void (*link_down)(struct fbnic_dev *fbd); + void (*link_up)(struct fbnic_dev *fbd, bool tx_pause, bool rx_pause); + + int (*get_sensor)(struct fbnic_dev *fbd, int id, long *val); +}; + +int fbnic_mac_init(struct fbnic_dev *fbd); +void fbnic_mac_get_fw_settings(struct fbnic_dev *fbd, u8 *aui, u8 *fec); +#endif /* _FBNIC_MAC_H_ */ |