1 /* SPDX-License-Identifier: GPL-2.0 */
2 /* Marvell OcteonTx2 RPM driver
4 * Copyright (C) 2020 Marvell.
14 * @wq_cmd_cmplt: waitq to keep the process blocked until cmd completion
15 * @cmd_lock: Lock to serialize the command interface
16 * @resp: command response
17 * @link_info: link related information
18 * @event_cb: callback for linkchange events
19 * @event_cb_lock: lock for serializing callback with unregister
20 * @cmd_pend: flag set before new command is started
21 * flag cleared after command response is received
22 * @cgx: parent cgx port
23 * @lmac_id: lmac port id
24 * @name: lmac port name
27 wait_queue_head_t wq_cmd_cmplt;
28 /* Lock to serialize the command interface */
29 struct mutex cmd_lock;
31 struct cgx_link_user_info link_info;
32 struct cgx_event_cb event_cb;
33 /* lock for serializing callback with unregister */
34 spinlock_t event_cb_lock;
41 /* CGX & RPM has different feature set
42 * update the structure fields with different one
46 /* Features like RXSTAT, TXSTAT, DMAC FILTER csrs differs by fixed
47 * bar offset for example
49 * RPM DMAC_CTL0 0x4ff8
52 /* For ATF to send events to kernel, there is no dedicated interrupt
53 * defined hence CGX uses OVERFLOW bit in CMR_INT. RPM block supports
54 * SW_INT so that ATF triggers this interrupt after processing of
59 /* lmac offset is different is RPM */
65 bool non_contiguous_serdes_lane;
66 /* RPM & CGX differs in number of Receive/transmit stats */
69 /* Incase of RPM get number of lmacs from RPMX_CMR_RX_LMACS[LMAC_EXIST]
70 * number of setbits in lmac_exist tells number of lmacs
72 int (*get_nr_lmacs)(void *cgx);
73 u8 (*get_lmac_type)(void *cgx, int lmac_id);
74 int (*mac_lmac_intl_lbk)(void *cgx, int lmac_id,
76 /* Register Stats related functions */
77 int (*mac_get_rx_stats)(void *cgx, int lmac_id,
78 int idx, u64 *rx_stat);
79 int (*mac_get_tx_stats)(void *cgx, int lmac_id,
80 int idx, u64 *tx_stat);
82 /* Enable LMAC Pause Frame Configuration */
83 void (*mac_enadis_rx_pause_fwding)(void *cgxd,
87 int (*mac_get_pause_frm_status)(void *cgxd,
92 int (*mac_enadis_pause_frm)(void *cgxd,
97 void (*mac_pause_frm_config)(void *cgxd,
103 void __iomem *reg_base;
104 struct pci_dev *pdev;
107 struct lmac *lmac_idmap[MAX_LMAC_PER_CGX];
108 struct work_struct cgx_cmd_work;
109 struct workqueue_struct *cgx_cmd_workq;
110 struct list_head cgx_list;
112 struct mac_ops *mac_ops;
113 unsigned long lmac_bmap; /* bitmap of enabled lmacs */
114 /* Lock to serialize read/write of global csrs like
115 * RPMX_MTI_STAT_DATA_HI_CDC etc
120 typedef struct cgx rpm_t;
122 /* Function Declarations */
123 void cgx_write(struct cgx *cgx, u64 lmac, u64 offset, u64 val);
124 u64 cgx_read(struct cgx *cgx, u64 lmac, u64 offset);
125 struct lmac *lmac_pdata(u8 lmac_id, struct cgx *cgx);
126 int cgx_fwi_cmd_send(u64 req, u64 *resp, struct lmac *lmac);
127 int cgx_fwi_cmd_generic(u64 req, u64 *resp, struct cgx *cgx, int lmac_id);
128 bool is_lmac_valid(struct cgx *cgx, int lmac_id);
129 struct mac_ops *rpm_get_mac_ops(void);
131 #endif /* LMAC_COMMON_H */