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// SPDX-License-Identifier: (GPL-2.0 OR MIT)
// Copyright (c) 2018 Synopsys, Inc. and/or its affiliates.
// stmmac HW Interface Callbacks
#ifndef __STMMAC_HWIF_H__
#define __STMMAC_HWIF_H__
#define stmmac_do_void_callback(__priv, __module, __cname, __arg0, __args...) \
({ \
int __result = -EINVAL; \
if ((__priv)->hw->__module->__cname) { \
(__priv)->hw->__module->__cname((__arg0), ##__args); \
__result = 0; \
} \
__result; \
})
#define stmmac_do_callback(__priv, __module, __cname, __arg0, __args...) \
({ \
int __result = -EINVAL; \
if ((__priv)->hw->__module->__cname) \
__result = (__priv)->hw->__module->__cname((__arg0), ##__args); \
__result; \
})
struct stmmac_extra_stats;
struct stmmac_safety_stats;
struct dma_desc;
struct dma_extended_desc;
/* Descriptors helpers */
struct stmmac_desc_ops {
/* DMA RX descriptor ring initialization */
void (*init_rx_desc)(struct dma_desc *p, int disable_rx_ic, int mode,
int end);
/* DMA TX descriptor ring initialization */
void (*init_tx_desc)(struct dma_desc *p, int mode, int end);
/* Invoked by the xmit function to prepare the tx descriptor */
void (*prepare_tx_desc)(struct dma_desc *p, int is_fs, int len,
bool csum_flag, int mode, bool tx_own, bool ls,
unsigned int tot_pkt_len);
void (*prepare_tso_tx_desc)(struct dma_desc *p, int is_fs, int len1,
int len2, bool tx_own, bool ls, unsigned int tcphdrlen,
unsigned int tcppayloadlen);
/* Set/get the owner of the descriptor */
void (*set_tx_owner)(struct dma_desc *p);
int (*get_tx_owner)(struct dma_desc *p);
/* Clean the tx descriptor as soon as the tx irq is received */
void (*release_tx_desc)(struct dma_desc *p, int mode);
/* Clear interrupt on tx frame completion. When this bit is
* set an interrupt happens as soon as the frame is transmitted */
void (*set_tx_ic)(struct dma_desc *p);
/* Last tx segment reports the transmit status */
int (*get_tx_ls)(struct dma_desc *p);
/* Return the transmit status looking at the TDES1 */
int (*tx_status)(void *data, struct stmmac_extra_stats *x,
struct dma_desc *p, void __iomem *ioaddr);
/* Get the buffer size from the descriptor */
int (*get_tx_len)(struct dma_desc *p);
/* Handle extra events on specific interrupts hw dependent */
void (*set_rx_owner)(struct dma_desc *p);
/* Get the receive frame size */
int (*get_rx_frame_len)(struct dma_desc *p, int rx_coe_type);
/* Return the reception status looking at the RDES1 */
int (*rx_status)(void *data, struct stmmac_extra_stats *x,
struct dma_desc *p);
void (*rx_extended_status)(void *data, struct stmmac_extra_stats *x,
struct dma_extended_desc *p);
/* Set tx timestamp enable bit */
void (*enable_tx_timestamp) (struct dma_desc *p);
/* get tx timestamp status */
int (*get_tx_timestamp_status) (struct dma_desc *p);
/* get timestamp value */
void (*get_timestamp)(void *desc, u32 ats, u64 *ts);
/* get rx timestamp status */
int (*get_rx_timestamp_status)(void *desc, void *next_desc, u32 ats);
/* Display ring */
void (*display_ring)(void *head, unsigned int size, bool rx);
/* set MSS via context descriptor */
void (*set_mss)(struct dma_desc *p, unsigned int mss);
};
#define stmmac_init_rx_desc(__priv, __args...) \
stmmac_do_void_callback(__priv, desc, init_rx_desc, __args)
#define stmmac_init_tx_desc(__priv, __args...) \
stmmac_do_void_callback(__priv, desc, init_tx_desc, __args)
#define stmmac_prepare_tx_desc(__priv, __args...) \
stmmac_do_void_callback(__priv, desc, prepare_tx_desc, __args)
#define stmmac_prepare_tso_tx_desc(__priv, __args...) \
stmmac_do_void_callback(__priv, desc, prepare_tso_tx_desc, __args)
#define stmmac_set_tx_owner(__priv, __args...) \
stmmac_do_void_callback(__priv, desc, set_tx_owner, __args)
#define stmmac_get_tx_owner(__priv, __args...) \
stmmac_do_callback(__priv, desc, get_tx_owner, __args)
#define stmmac_release_tx_desc(__priv, __args...) \
stmmac_do_void_callback(__priv, desc, release_tx_desc, __args)
#define stmmac_set_tx_ic(__priv, __args...) \
stmmac_do_void_callback(__priv, desc, set_tx_ic, __args)
#define stmmac_get_tx_ls(__priv, __args...) \
stmmac_do_callback(__priv, desc, get_tx_ls, __args)
#define stmmac_tx_status(__priv, __args...) \
stmmac_do_callback(__priv, desc, tx_status, __args)
#define stmmac_get_tx_len(__priv, __args...) \
stmmac_do_callback(__priv, desc, get_tx_len, __args)
#define stmmac_set_rx_owner(__priv, __args...) \
stmmac_do_void_callback(__priv, desc, set_rx_owner, __args)
#define stmmac_get_rx_frame_len(__priv, __args...) \
stmmac_do_callback(__priv, desc, get_rx_frame_len, __args)
#define stmmac_rx_status(__priv, __args...) \
stmmac_do_callback(__priv, desc, rx_status, __args)
#define stmmac_rx_extended_status(__priv, __args...) \
stmmac_do_void_callback(__priv, desc, rx_extended_status, __args)
#define stmmac_enable_tx_timestamp(__priv, __args...) \
stmmac_do_void_callback(__priv, desc, enable_tx_timestamp, __args)
#define stmmac_get_tx_timestamp_status(__priv, __args...) \
stmmac_do_callback(__priv, desc, get_tx_timestamp_status, __args)
#define stmmac_get_timestamp(__priv, __args...) \
stmmac_do_void_callback(__priv, desc, get_timestamp, __args)
#define stmmac_get_rx_timestamp_status(__priv, __args...) \
stmmac_do_callback(__priv, desc, get_rx_timestamp_status, __args)
#define stmmac_display_ring(__priv, __args...) \
stmmac_do_void_callback(__priv, desc, display_ring, __args)
#define stmmac_set_mss(__priv, __args...) \
stmmac_do_void_callback(__priv, desc, set_mss, __args)
#endif /* __STMMAC_HWIF_H__ */
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