// SPDX-License-Identifier: GPL-2.0 /* Marvell OcteonTx2 CGX driver * * Copyright (C) 2018 Marvell. * */ #include <linux/acpi.h> #include <linux/module.h> #include <linux/interrupt.h> #include <linux/pci.h> #include <linux/netdevice.h> #include <linux/etherdevice.h> #include <linux/ethtool.h> #include <linux/phy.h> #include <linux/of.h> #include <linux/of_mdio.h> #include <linux/of_net.h> #include "cgx.h" #include "rvu.h" #include "lmac_common.h" #define DRV_NAME … #define DRV_STRING … #define CGX_RX_STAT_GLOBAL_INDEX … static LIST_HEAD(cgx_list); /* Convert firmware speed encoding to user format(Mbps) */ static const u32 cgx_speed_mbps[CGX_LINK_SPEED_MAX] = …; /* Convert firmware lmac type encoding to string */ static const char *cgx_lmactype_string[LMAC_MODE_MAX] = …; /* CGX PHY management internal APIs */ static int cgx_fwi_link_change(struct cgx *cgx, int lmac_id, bool en); /* Supported devices */ static const struct pci_device_id cgx_id_table[] = …; MODULE_DEVICE_TABLE(pci, cgx_id_table); static bool is_dev_rpm(void *cgxd) { … } bool is_lmac_valid(struct cgx *cgx, int lmac_id) { … } /* Helper function to get sequential index * given the enabled LMAC of a CGX */ static int get_sequence_id_of_lmac(struct cgx *cgx, int lmac_id) { … } struct mac_ops *get_mac_ops(void *cgxd) { … } void cgx_write(struct cgx *cgx, u64 lmac, u64 offset, u64 val) { … } u64 cgx_read(struct cgx *cgx, u64 lmac, u64 offset) { … } struct lmac *lmac_pdata(u8 lmac_id, struct cgx *cgx) { … } int cgx_get_cgxcnt_max(void) { … } int cgx_get_lmac_cnt(void *cgxd) { … } void *cgx_get_pdata(int cgx_id) { … } void cgx_lmac_write(int cgx_id, int lmac_id, u64 offset, u64 val) { … } u64 cgx_lmac_read(int cgx_id, int lmac_id, u64 offset) { … } int cgx_get_cgxid(void *cgxd) { … } u8 cgx_lmac_get_p2x(int cgx_id, int lmac_id) { … } /* Ensure the required lock for event queue(where asynchronous events are * posted) is acquired before calling this API. Else an asynchronous event(with * latest link status) can reach the destination before this function returns * and could make the link status appear wrong. */ int cgx_get_link_info(void *cgxd, int lmac_id, struct cgx_link_user_info *linfo) { … } int cgx_lmac_addr_set(u8 cgx_id, u8 lmac_id, u8 *mac_addr) { … } u64 cgx_read_dmac_ctrl(void *cgxd, int lmac_id) { … } u64 cgx_read_dmac_entry(void *cgxd, int index) { … } int cgx_lmac_addr_add(u8 cgx_id, u8 lmac_id, u8 *mac_addr) { … } int cgx_lmac_addr_reset(u8 cgx_id, u8 lmac_id) { … } /* Allows caller to change macaddress associated with index * in dmac filter table including index 0 reserved for * interface mac address */ int cgx_lmac_addr_update(u8 cgx_id, u8 lmac_id, u8 *mac_addr, u8 index) { … } int cgx_lmac_addr_del(u8 cgx_id, u8 lmac_id, u8 index) { … } int cgx_lmac_addr_max_entries_get(u8 cgx_id, u8 lmac_id) { … } u64 cgx_lmac_addr_get(u8 cgx_id, u8 lmac_id) { … } int cgx_set_pkind(void *cgxd, u8 lmac_id, int pkind) { … } static u8 cgx_get_lmac_type(void *cgxd, int lmac_id) { … } static u32 cgx_get_lmac_fifo_len(void *cgxd, int lmac_id) { … } /* Configure CGX LMAC in internal loopback mode */ int cgx_lmac_internal_loopback(void *cgxd, int lmac_id, bool enable) { … } void cgx_lmac_promisc_config(int cgx_id, int lmac_id, bool enable) { … } static int cgx_lmac_get_pause_frm_status(void *cgxd, int lmac_id, u8 *tx_pause, u8 *rx_pause) { … } /* Enable or disable forwarding received pause frames to Tx block */ void cgx_lmac_enadis_rx_pause_fwding(void *cgxd, int lmac_id, bool enable) { … } int cgx_get_rx_stats(void *cgxd, int lmac_id, int idx, u64 *rx_stat) { … } int cgx_get_tx_stats(void *cgxd, int lmac_id, int idx, u64 *tx_stat) { … } u64 cgx_features_get(void *cgxd) { … } int cgx_stats_reset(void *cgxd, int lmac_id) { … } static int cgx_set_fec_stats_count(struct cgx_link_user_info *linfo) { … } int cgx_get_fec_stats(void *cgxd, int lmac_id, struct cgx_fec_stats_rsp *rsp) { … } int cgx_lmac_rx_tx_enable(void *cgxd, int lmac_id, bool enable) { … } int cgx_lmac_tx_enable(void *cgxd, int lmac_id, bool enable) { … } static int cgx_lmac_enadis_pause_frm(void *cgxd, int lmac_id, u8 tx_pause, u8 rx_pause) { … } static void cgx_lmac_pause_frm_config(void *cgxd, int lmac_id, bool enable) { … } int verify_lmac_fc_cfg(void *cgxd, int lmac_id, u8 tx_pause, u8 rx_pause, int pfvf_idx) { … } int cgx_lmac_pfc_config(void *cgxd, int lmac_id, u8 tx_pause, u8 rx_pause, u16 pfc_en) { … } int cgx_lmac_get_pfc_frm_cfg(void *cgxd, int lmac_id, u8 *tx_pause, u8 *rx_pause) { … } void cgx_lmac_ptp_config(void *cgxd, int lmac_id, bool enable) { … } /* CGX Firmware interface low level support */ int cgx_fwi_cmd_send(u64 req, u64 *resp, struct lmac *lmac) { … } int cgx_fwi_cmd_generic(u64 req, u64 *resp, struct cgx *cgx, int lmac_id) { … } static int cgx_link_usertable_index_map(int speed) { … } static void set_mod_args(struct cgx_set_link_mode_args *args, u32 speed, u8 duplex, u8 autoneg, u64 mode) { … } static void otx2_map_ethtool_link_modes(u64 bitmask, struct cgx_set_link_mode_args *args) { … } static inline void link_status_user_format(u64 lstat, struct cgx_link_user_info *linfo, struct cgx *cgx, u8 lmac_id) { … } /* Hardware event handlers */ static inline void cgx_link_change_handler(u64 lstat, struct lmac *lmac) { … } static inline bool cgx_cmdresp_is_linkevent(u64 event) { … } static inline bool cgx_event_is_linkevent(u64 event) { … } static irqreturn_t cgx_fwi_event_handler(int irq, void *data) { … } /* APIs for PHY management using CGX firmware interface */ /* callback registration for hardware events like link change */ int cgx_lmac_evh_register(struct cgx_event_cb *cb, void *cgxd, int lmac_id) { … } int cgx_lmac_evh_unregister(void *cgxd, int lmac_id) { … } int cgx_get_fwdata_base(u64 *base) { … } int cgx_set_link_mode(void *cgxd, struct cgx_set_link_mode_args args, int cgx_id, int lmac_id) { … } int cgx_set_fec(u64 fec, int cgx_id, int lmac_id) { … } int cgx_get_phy_fec_stats(void *cgxd, int lmac_id) { … } static int cgx_fwi_link_change(struct cgx *cgx, int lmac_id, bool enable) { … } static inline int cgx_fwi_read_version(u64 *resp, struct cgx *cgx) { … } static int cgx_lmac_verify_fwi_version(struct cgx *cgx) { … } static void cgx_lmac_linkup_work(struct work_struct *work) { … } int cgx_lmac_linkup_start(void *cgxd) { … } int cgx_lmac_reset(void *cgxd, int lmac_id, u8 pf_req_flr) { … } static int cgx_configure_interrupt(struct cgx *cgx, struct lmac *lmac, int cnt, bool req_free) { … } int cgx_get_nr_lmacs(void *cgxd) { … } u8 cgx_get_lmacid(void *cgxd, u8 lmac_index) { … } unsigned long cgx_get_lmac_bmap(void *cgxd) { … } static int cgx_lmac_init(struct cgx *cgx) { … } static int cgx_lmac_exit(struct cgx *cgx) { … } static void cgx_populate_features(struct cgx *cgx) { … } static u8 cgx_get_rxid_mapoffset(struct cgx *cgx) { … } static struct mac_ops cgx_mac_ops = …; static int cgx_probe(struct pci_dev *pdev, const struct pci_device_id *id) { … } static void cgx_remove(struct pci_dev *pdev) { … } struct pci_driver cgx_driver = …;
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