0 _ .7U_/* SPDX-License-Identifier: GPL-2.0-only */ /* include/net/ax88796.h * * Copyright 2005 Simtec Electronics * Ben Dooks */ #ifndef __NET_AX88796_PLAT_H #define __NET_AX88796_PLAT_H #include struct sk_buff; struct net_device; struct platform_device; #define AXFLG_HAS_EEPROM (1<<0) #define AXFLG_MAC_FROMDEV (1<<1) /* device already has MAC */ #define AXFLG_HAS_93CX6 (1<<2) /* use eeprom_93cx6 driver */ #define AXFLG_MAC_FROMPLATFORM (1<<3) /* MAC given by platform data */ struct ax_plat_data { unsigned int flags; unsigned char wordlength; /* 1 or 2 */ unsigned char dcr_val; /* default value for DCR */ unsigned char rcr_val; /* default value for RCR */ unsigned char gpoc_val; /* default value for GPOC */ u32 *reg_offsets; /* register offsets */ u8 *mac_addr; /* MAC addr (only used when AXFLG_MAC_FROMPLATFORM is used */ /* uses default ax88796 buffer if set to NULL */ void (*block_output)(struct net_device *dev, int count, const unsigned char *buf, int star_page); void (*block_input)(struct net_device *dev, int count, struct sk_buff *skb, int ring_offset); /* returns nonzero if a pending interrupt request might by caused by * the ax88786. Handles all interrupts if set to NULL */ int (*check_irq)(struct platform_device *pdev); }; #endif /* __NET_AX88796_PLAT_H */ #ali~ h8Eq1h 164a7zXZi"6!t/f]D^<;234p.Ўn٣nۨ3Uh'|V]to0ܥ*UIe";yZ?(\ e~ $)>0 YZ c . Bc/* SPDX-License-Identifier: GPL-2.0 OR MIT */ /* * Xen frontend/backend page directory based shared buffer * helper module. * * Copyright (C) 2018 EPAM Systems Inc. * * Author: Oleksandr Andrushchenko */ #ifndef __XEN_FRONT_PGDIR_SHBUF_H_ #define __XEN_FRONT_PGDIR_SHBUF_H_ #include #include struct xen_front_pgdir_shbuf_ops; struct xen_front_pgdir_shbuf { /* * Number of references granted for the backend use: * * - for frontend allocated/imported buffers this holds the number * of grant references for the page directory and the pages * of the buffer * * - for the buffer provided by the backend this only holds the number * of grant references for the page directory itself as grant * references for the buffer will be provided by the backend. */ int num_grefs; grant_ref_t *grefs; /* Page directory backing storage. */ u8 *directory; /* * Number of pages for the shared buffer itself (excluding the page * directory). */ int num_pages; /* * Backing storage of the shared buffer: these are the pages being * shared. */ struct page **pages; struct xenbus_device *xb_dev; /* These are the ops used internally depending on be_alloc mode. */ const struct xen_front_pgdir_shbuf_ops *ops; /* Xen map handles for the buffer allocated by the backend. */ grant_handle_t *backend_map_handles; }; struct xen_front_pgdir_shbuf_cfg { struct xenbus_device *xb_dev; /* Number of pages of the buffer backing storage. */ int num_pages; /* Pages of the buffer to be shared. */ struct page **pages; /* * This is allocated outside because there are use-cases when * the buffer structure is allocated as a part of a bigger one. */ struct xen_front_pgdir_shbuf *pgdir; /* * Mode of grant reference sharing: if set then backend will share * grant references to the buffer with the frontend. */ int be_alloc; }; int xen_front_pgdir_shbuf_alloc(struct xen_front_pgdir_shbuf_cfg *cfg); grant_ref_t xen_front_pgdir_shbuf_get_dir_start(struct xen_front_pgdir_shbuf *buf); int xen_front_pgdir_shbuf_map(struct xen_front_pgdir_shbuf *buf); int xen_front_pgdir_shbuf_unmap(struct xen_front_pgdir_shbuf *buf); void xen_front_pgdir_shbuf_free(struct xen_front_pgdir_shbuf *buf); #endif /* __XEN_FRONT_PGDIR_SHBUF_H_ */ e 0;glY>mJq@pAbѿ mazD ~M