Greg Kroah-Hartman
598cf27219
Link: https://lore.kernel.org/r/20260217200002.683975158@linuxfoundation.org Tested-by: Florian Fainelli <florian.fainelli@broadcom.com> Tested-by: Takeshi Ogasawara <takeshi.ogasawara@futuring-girl.com> Tested-by: Peter Schneider <pschneider1968@googlemail.com> Tested-by: Jon Hunter <jonathanh@nvidia.com> Tested-by: Salvatore Bonaccorso <carnil@debian.org> Tested-by: Brett A C Sheffield <bacs@librecast.net> Tested-by: Mark Brown <broonie@kernel.org> Tested-by: Luna Jernberg <droidbittin@gmail.com> Tested-by: Ronald Warsow <rwarsow@gmx.de> Tested-by: Justin M. Forbes <jforbes@fedoraproject.org> Tested-by: Ron Economos <re@w6rz.net> Tested-by: Miguel Ojeda <ojeda@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
123 lines
3.9 KiB
C
123 lines
3.9 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/* Copyright (c) Meta Platforms, Inc. and affiliates. */
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#ifndef _FBNIC_MAC_H_
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#define _FBNIC_MAC_H_
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#include <linux/types.h>
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struct fbnic_dev;
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#define FBNIC_MAX_JUMBO_FRAME_SIZE 9742
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/* States loosely based on section 136.8.11.7.5 of IEEE 802.3-2022 Ethernet
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* Standard. These are needed to track the state of the PHY as it has a delay
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* of several seconds from the time link comes up until it has completed
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* training that we need to wait to report the link.
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*
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* Currently we treat training as a single block as this is managed by the
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* firmware.
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*
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* We have FBNIC_PMD_SEND_DATA set to 0 as the expected default at driver load
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* and we initialize the structure containing it to zero at allocation.
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*/
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enum {
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FBNIC_PMD_SEND_DATA = 0x0,
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FBNIC_PMD_INITIALIZE = 0x1,
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FBNIC_PMD_TRAINING = 0x2,
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FBNIC_PMD_LINK_READY = 0x3,
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};
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enum {
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FBNIC_LINK_EVENT_NONE = 0,
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FBNIC_LINK_EVENT_UP = 1,
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FBNIC_LINK_EVENT_DOWN = 2,
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};
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/* Treat the FEC bits as a bitmask laid out as follows:
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* Bit 0: RS Enabled
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* Bit 1: BASER(Firecode) Enabled
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* Bit 2: Retrieve FEC from FW
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*/
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enum {
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FBNIC_FEC_OFF = 0,
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FBNIC_FEC_RS = 1,
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FBNIC_FEC_BASER = 2,
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};
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/* Treat the AUI modes as a modulation/lanes bitmask:
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* Bit 0: Lane Count, 0 = R1, 1 = R2
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* Bit 1: Modulation, 0 = NRZ, 1 = PAM4
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* Bit 2: Unknown Modulation/Lane Configuration
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*/
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enum {
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FBNIC_AUI_25GAUI = 0, /* 25.7812GBd 25.78125 * 1 */
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FBNIC_AUI_LAUI2 = 1, /* 51.5625GBd 25.78128 * 2 */
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FBNIC_AUI_50GAUI1 = 2, /* 53.125GBd 53.125 * 1 */
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FBNIC_AUI_100GAUI2 = 3, /* 106.25GBd 53.125 * 2 */
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FBNIC_AUI_UNKNOWN = 4,
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__FBNIC_AUI_MAX__
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};
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#define FBNIC_AUI_MODE_R2 (FBNIC_AUI_LAUI2)
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#define FBNIC_AUI_MODE_PAM4 (FBNIC_AUI_50GAUI1)
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enum fbnic_sensor_id {
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FBNIC_SENSOR_TEMP, /* Temp in millidegrees Centigrade */
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FBNIC_SENSOR_VOLTAGE, /* Voltage in millivolts */
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};
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/* This structure defines the interface hooks for the MAC. The MAC hooks
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* will be configured as a const struct provided with a set of function
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* pointers.
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*
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* void (*init_regs)(struct fbnic_dev *fbd);
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* Initialize MAC registers to enable Tx/Rx paths and FIFOs.
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*
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* int (*get_link_event)(struct fbnic_dev *fbd)
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* Get the current link event status, reports true if link has
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* changed to either FBNIC_LINK_EVENT_DOWN or FBNIC_LINK_EVENT_UP
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* bool (*get_link)(struct fbnic_dev *fbd, u8 aui, u8 fec);
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* Check link status
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*
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* void (*prepare)(struct fbnic_dev *fbd, u8 aui, u8 fec);
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* Prepare PHY for init by fetching settings, disabling interrupts,
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* and sending an updated PHY config to FW if needed.
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*
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* void (*link_down)(struct fbnic_dev *fbd);
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* Configure MAC for link down event
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* void (*link_up)(struct fbnic_dev *fbd, bool tx_pause, bool rx_pause);
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* Configure MAC for link up event;
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*
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*/
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struct fbnic_mac {
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void (*init_regs)(struct fbnic_dev *fbd);
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int (*get_link_event)(struct fbnic_dev *fbd);
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bool (*get_link)(struct fbnic_dev *fbd, u8 aui, u8 fec);
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void (*prepare)(struct fbnic_dev *fbd, u8 aui, u8 fec);
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void (*get_fec_stats)(struct fbnic_dev *fbd, bool reset,
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struct fbnic_fec_stats *fec_stats);
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void (*get_pcs_stats)(struct fbnic_dev *fbd, bool reset,
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struct fbnic_pcs_stats *pcs_stats);
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void (*get_eth_mac_stats)(struct fbnic_dev *fbd, bool reset,
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struct fbnic_eth_mac_stats *mac_stats);
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void (*get_pause_stats)(struct fbnic_dev *fbd, bool reset,
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struct fbnic_pause_stats *pause_stats);
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void (*get_eth_ctrl_stats)(struct fbnic_dev *fbd, bool reset,
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struct fbnic_eth_ctrl_stats *ctrl_stats);
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void (*get_rmon_stats)(struct fbnic_dev *fbd, bool reset,
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struct fbnic_rmon_stats *rmon_stats);
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void (*link_down)(struct fbnic_dev *fbd);
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void (*link_up)(struct fbnic_dev *fbd, bool tx_pause, bool rx_pause);
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int (*get_sensor)(struct fbnic_dev *fbd, int id, long *val);
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};
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int fbnic_mac_init(struct fbnic_dev *fbd);
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void fbnic_mac_get_fw_settings(struct fbnic_dev *fbd, u8 *aui, u8 *fec);
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#endif /* _FBNIC_MAC_H_ */
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