72 lines
2.3 KiB
C
72 lines
2.3 KiB
C
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/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Copyright (c) 2020 Samsung Electronics Co., Ltd.
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* http://www.samsung.com/
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*
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* EXYNOS DIT(Direct IP Translator) Driver support
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*
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*/
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#ifndef __DIT_H__
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#define __DIT_H__
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#include "modem_utils.h"
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#include "modem_toe_device.h"
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enum dit_direction {
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DIT_DIR_TX,
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DIT_DIR_RX,
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DIT_DIR_MAX
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};
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enum dit_init_type {
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DIT_INIT_NORMAL = 0,
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DIT_INIT_RETRY,
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DIT_INIT_DEINIT,
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};
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enum dit_store_type {
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DIT_STORE_NONE = 0,
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DIT_STORE_BACKUP,
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DIT_STORE_RESTORE,
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};
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int dit_init(struct link_device *ld, enum dit_init_type type, enum dit_store_type store);
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int dit_get_irq_affinity(void);
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int dit_set_irq_affinity(int affinity);
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int dit_set_pktproc_queue_num(enum dit_direction dir, u32 queue_num);
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int dit_set_buf_size(enum dit_direction dir, u32 size);
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int dit_set_pktproc_base(enum dit_direction dir, phys_addr_t base);
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int dit_set_desc_ring_len(enum dit_direction dir, u32 len);
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int dit_get_src_usage(enum dit_direction dir, u32 *usage);
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#if IS_ENABLED(CONFIG_EXYNOS_DIT)
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int dit_enqueue_src_desc_ring(
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enum dit_direction dir, u8 *src, unsigned long src_paddr,
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u16 len, u8 ch_id, bool csum);
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int dit_enqueue_src_desc_ring_skb(enum dit_direction dir, struct sk_buff *skb);
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int dit_kick(enum dit_direction dir, bool retry);
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bool dit_check_dir_use_queue(enum dit_direction dir, unsigned int queue_num);
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int dit_reset_dst_wp_rp(enum dit_direction dir);
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struct net_device *dit_get_netdev(void);
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bool dit_support_clat(void);
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bool dit_hal_set_clat_info(struct mem_link_device *mld, struct clat_info *clat);
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#else
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static inline int dit_enqueue_src_desc_ring(
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enum dit_direction dir, u8 *src, unsigned long src_paddr,
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u16 len, u8 ch_id, bool csum) { return -1; }
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static inline int dit_enqueue_src_desc_ring_skb(
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enum dit_direction dir, struct sk_buff *skb) { return -1; }
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static inline int dit_kick(enum dit_direction dir, bool retry) { return -1; }
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static inline bool dit_check_dir_use_queue(
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enum dit_direction dir, unsigned int queue_num) { return false; }
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static inline int dit_reset_dst_wp_rp(enum dit_direction dir) { return -1; }
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static inline struct net_device *dit_get_netdev(void) { return NULL; }
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static inline bool dit_support_clat(void) { return false; }
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static inline bool dit_hal_set_clat_info(struct mem_link_device *mld, struct clat_info *clat)
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{ return false; }
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#endif
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#endif /* __DIT_H__ */
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