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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__
#include <linux/netdevice.h>
#include <linux/stmmac.h>
#define stmmac_do_void_callback(__priv, __module, __cname, __arg0, __args...) \
({ \
int __result = -EINVAL; \
if ((__priv)->hw->__module && (__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 && (__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;
struct dma_edesc;
/* 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, int bfsize);
/* 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, int disable_rx_ic);
/* 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);
/* get descriptor skbuff address */
void (*get_addr)(struct dma_desc *p, unsigned int *addr);
/* set descriptor skbuff address */
void (*set_addr)(struct dma_desc *p, dma_addr_t addr);
/* clear descriptor */
void (*clear)(struct dma_desc *p);
/* RSS */
int (*get_rx_hash)(struct dma_desc *p, u32 *hash,
enum pkt_hash_types *type);
int (*get_rx_header_len)(struct dma_desc *p, unsigned int *len);
void (*set_sec_addr)(struct dma_desc *p, dma_addr_t addr);
void (*set_sarc)(struct dma_desc *p, u32 sarc_type);
void (*set_vlan_tag)(struct dma_desc *p, u16 tag, u16 inner_tag,
u32 inner_type);
void (*set_vlan)(struct dma_desc *p, u32 type);
void (*set_tbs)(struct dma_edesc *p, u32 sec, u32 nsec);
};
#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)
#define stmmac_get_desc_addr(__priv, __args...) \
stmmac_do_void_callback(__priv, desc, get_addr, __args)
#define stmmac_set_desc_addr(__priv, __args...) \
stmmac_do_void_callback(__priv, desc, set_addr, __args)
#define stmmac_clear_desc(__priv, __args...) \
stmmac_do_void_callback(__priv, desc, clear, __args)
#define stmmac_get_rx_hash(__priv, __args...) \
stmmac_do_callback(__priv, desc, get_rx_hash, __args)
#define stmmac_get_rx_header_len(__priv, __args...) \
stmmac_do_callback(__priv, desc, get_rx_header_len, __args)
#define stmmac_set_desc_sec_addr(__priv, __args...) \
stmmac_do_void_callback(__priv, desc, set_sec_addr, __args)
#define stmmac_set_desc_sarc(__priv, __args...) \
stmmac_do_void_callback(__priv, desc, set_sarc, __args)
#define stmmac_set_desc_vlan_tag(__priv, __args...) \
stmmac_do_void_callback(__priv, desc, set_vlan_tag, __args)
#define stmmac_set_desc_vlan(__priv, __args...) \
stmmac_do_void_callback(__priv, desc, set_vlan, __args)
#define stmmac_set_desc_tbs(__priv, __args...) \
stmmac_do_void_callback(__priv, desc, set_tbs, __args)
struct stmmac_dma_cfg;
struct dma_features;
/* Specific DMA helpers */
struct stmmac_dma_ops {
/* DMA core initialization */
int (*reset)(void __iomem *ioaddr);
void (*init)(void __iomem *ioaddr, struct stmmac_dma_cfg *dma_cfg,
int atds);
void (*init_chan)(void __iomem *ioaddr,
struct stmmac_dma_cfg *dma_cfg, u32 chan);
void (*init_rx_chan)(void __iomem *ioaddr,
struct stmmac_dma_cfg *dma_cfg,
dma_addr_t phy, u32 chan);
void (*init_tx_chan)(void __iomem *ioaddr,
struct stmmac_dma_cfg *dma_cfg,
dma_addr_t phy, u32 chan);
/* Configure the AXI Bus Mode Register */
void (*axi)(void __iomem *ioaddr, struct stmmac_axi *axi);
/* Dump DMA registers */
void (*dump_regs)(void __iomem *ioaddr, u32 *reg_space);
void (*dma_rx_mode)(void __iomem *ioaddr, int mode, u32 channel,
int fifosz, u8 qmode);
void (*dma_tx_mode)(void __iomem *ioaddr, int mode, u32 channel,
int fifosz, u8 qmode);
/* To track extra statistic (if supported) */
void (*dma_diagnostic_fr) (void *data,
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