linux/drivers/net/ethernet/apm/xgene-v2/ring.h

/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
 * Applied Micro X-Gene SoC Ethernet v2 Driver
 *
 * Copyright (c) 2017, Applied Micro Circuits Corporation
 * Author(s): Iyappan Subramanian <[email protected]>
 *	      Keyur Chudgar <[email protected]>
 */

#ifndef __XGENE_ENET_V2_RING_H__
#define __XGENE_ENET_V2_RING_H__

#define XGENE_ENET_DESC_SIZE …
#define XGENE_ENET_NUM_DESC …
#define NUM_BUFS …
#define SLOT_EMPTY …

#define DMATXCTRL …
#define DMATXDESCL …
#define DMATXDESCH …
#define DMATXSTATUS …
#define DMARXCTRL …
#define DMARXDESCL …
#define DMARXDESCH …
#define DMARXSTATUS …
#define DMAINTRMASK …
#define DMAINTERRUPT …

#define D_POS …
#define D_LEN …
#define E_POS …
#define E_LEN …
#define PKT_ADDRL_POS …
#define PKT_ADDRL_LEN …
#define PKT_ADDRH_POS …
#define PKT_ADDRH_LEN …
#define PKT_SIZE_POS …
#define PKT_SIZE_LEN …
#define NEXT_DESC_ADDRL_POS …
#define NEXT_DESC_ADDRL_LEN …
#define NEXT_DESC_ADDRH_POS …
#define NEXT_DESC_ADDRH_LEN …

#define TXPKTCOUNT_POS …
#define TXPKTCOUNT_LEN …
#define RXPKTCOUNT_POS …
#define RXPKTCOUNT_LEN …

#define TX_PKT_SENT …
#define TX_BUS_ERROR …
#define RX_PKT_RCVD …
#define RX_BUS_ERROR …
#define RXSTATUS_RXPKTRCVD …

struct xge_raw_desc { … };

struct pkt_info { … };

/* software context of a descriptor ring */
struct xge_desc_ring { … };

static inline u64 xge_set_desc_bits(int pos, int len, u64 val)
{ … }

static inline u64 xge_get_desc_bits(int pos, int len, u64 src)
{ … }

#define SET_BITS(field, val) …

#define GET_BITS(field, src) …

void xge_setup_desc(struct xge_desc_ring *ring);
void xge_update_tx_desc_addr(struct xge_pdata *pdata);
void xge_update_rx_desc_addr(struct xge_pdata *pdata);
void xge_intr_enable(struct xge_pdata *pdata);
void xge_intr_disable(struct xge_pdata *pdata);

#endif  /* __XGENE_ENET_V2_RING_H__ */