diff options
Diffstat (limited to '')
| -rw-r--r-- | drivers/net/ethernet/marvell/octeontx2/af/lmac_common.h | 131 |
1 files changed, 131 insertions, 0 deletions
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/lmac_common.h b/drivers/net/ethernet/marvell/octeontx2/af/lmac_common.h new file mode 100644 index 000000000000..45706fd87120 --- /dev/null +++ b/drivers/net/ethernet/marvell/octeontx2/af/lmac_common.h @@ -0,0 +1,131 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* Marvell OcteonTx2 RPM driver + * + * Copyright (C) 2020 Marvell. + */ + +#ifndef LMAC_COMMON_H +#define LMAC_COMMON_H + +#include "rvu.h" +#include "cgx.h" +/** + * struct lmac + * @wq_cmd_cmplt: waitq to keep the process blocked until cmd completion + * @cmd_lock: Lock to serialize the command interface + * @resp: command response + * @link_info: link related information + * @event_cb: callback for linkchange events + * @event_cb_lock: lock for serializing callback with unregister + * @cmd_pend: flag set before new command is started + * flag cleared after command response is received + * @cgx: parent cgx port + * @lmac_id: lmac port id + * @name: lmac port name + */ +struct lmac { + wait_queue_head_t wq_cmd_cmplt; + /* Lock to serialize the command interface */ + struct mutex cmd_lock; + u64 resp; + struct cgx_link_user_info link_info; + struct cgx_event_cb event_cb; + /* lock for serializing callback with unregister */ + spinlock_t event_cb_lock; + bool cmd_pend; + struct cgx *cgx; + u8 lmac_id; + char *name; +}; + +/* CGX & RPM has different feature set + * update the structure fields with different one + */ +struct mac_ops { + char *name; + /* Features like RXSTAT, TXSTAT, DMAC FILTER csrs differs by fixed + * bar offset for example + * CGX DMAC_CTL0 0x1f8 + * RPM DMAC_CTL0 0x4ff8 + */ + u64 csr_offset; + /* For ATF to send events to kernel, there is no dedicated interrupt + * defined hence CGX uses OVERFLOW bit in CMR_INT. RPM block supports + * SW_INT so that ATF triggers this interrupt after processing of + * requested command + */ + u64 int_register; + u64 int_set_reg; + /* lmac offset is different is RPM */ + u8 lmac_offset; + u8 irq_offset; + u8 int_ena_bit; + u8 lmac_fwi; + u32 fifo_len; + bool non_contiguous_serdes_lane; + /* RPM & CGX differs in number of Receive/transmit stats */ + u8 rx_stats_cnt; + u8 tx_stats_cnt; + /* Incase of RPM get number of lmacs from RPMX_CMR_RX_LMACS[LMAC_EXIST] + * number of setbits in lmac_exist tells number of lmacs + */ + int (*get_nr_lmacs)(void *cgx); + u8 (*get_lmac_type)(void *cgx, int lmac_id); + int (*mac_lmac_intl_lbk)(void *cgx, int lmac_id, + bool enable); + /* Register Stats related functions */ + int (*mac_get_rx_stats)(void *cgx, int lmac_id, + int idx, u64 *rx_stat); + int (*mac_get_tx_stats)(void *cgx, int lmac_id, + int idx, u64 *tx_stat); + + /* Enable LMAC Pause Frame Configuration */ + void (*mac_enadis_rx_pause_fwding)(void *cgxd, + int lmac_id, + bool enable); + + int (*mac_get_pause_frm_status)(void *cgxd, + int lmac_id, + u8 *tx_pause, + u8 *rx_pause); + + int (*mac_enadis_pause_frm)(void *cgxd, + int lmac_id, + u8 tx_pause, + u8 rx_pause); + + void (*mac_pause_frm_config)(void *cgxd, + int lmac_id, + bool enable); +}; + +struct cgx { + void __iomem *reg_base; + struct pci_dev *pdev; + u8 cgx_id; + u8 lmac_count; + struct lmac *lmac_idmap[MAX_LMAC_PER_CGX]; + struct work_struct cgx_cmd_work; + struct workqueue_struct *cgx_cmd_workq; + struct list_head cgx_list; + u64 hw_features; + struct mac_ops *mac_ops; + unsigned long lmac_bmap; /* bitmap of enabled lmacs */ + /* Lock to serialize read/write of global csrs like + * RPMX_MTI_STAT_DATA_HI_CDC etc + */ + struct mutex lock; +}; + +typedef struct cgx rpm_t; + +/* Function Declarations */ +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_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); +bool is_lmac_valid(struct cgx *cgx, int lmac_id); +struct mac_ops *rpm_get_mac_ops(void); + +#endif /* LMAC_COMMON_H */ |