sjur.brandeland@stericsson.comcaif: Handle dev_queue_xmit errors.c85c29515 years agoHistory
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/* * Copyright (C) ST-Ericsson AB 2010 * Author:	Sjur Brendeland/sjur.brandeland@stericsson.com * License terms: GNU General Public License (GPL) version 2 */ #ifndef CFCTRL_H_#define CFCTRL_H_#include <net/caif/caif_layer.h>#include <net/caif/cfsrvl.h> /* CAIF Control packet commands */enum cfctrl_cmd {	CFCTRL_CMD_LINK_SETUP = 0,	CFCTRL_CMD_LINK_DESTROY = 1,	CFCTRL_CMD_LINK_ERR = 2,	CFCTRL_CMD_ENUM = 3,	CFCTRL_CMD_SLEEP = 4,	CFCTRL_CMD_WAKE = 5,	CFCTRL_CMD_LINK_RECONF = 6,	CFCTRL_CMD_START_REASON = 7,	CFCTRL_CMD_RADIO_SET = 8,	CFCTRL_CMD_MODEM_SET = 9,	CFCTRL_CMD_MASK = 0xf}; /* Channel types */enum cfctrl_srv {	CFCTRL_SRV_DECM = 0,	CFCTRL_SRV_VEI = 1,	CFCTRL_SRV_VIDEO = 2,	CFCTRL_SRV_DBG = 3,	CFCTRL_SRV_DATAGRAM = 4,	CFCTRL_SRV_RFM = 5,	CFCTRL_SRV_UTIL = 6,	CFCTRL_SRV_MASK = 0xf}; #define CFCTRL_RSP_BIT 0x20#define CFCTRL_ERR_BIT 0x10 struct cfctrl_rsp {	void (*linksetup_rsp)(struct cflayer *layer, u8 linkid,			      enum cfctrl_srv serv, u8 phyid,			      struct cflayer *adapt_layer);	void (*linkdestroy_rsp)(struct cflayer *layer, u8 linkid);	void (*linkerror_ind)(void);	void (*enum_rsp)(void);	void (*sleep_rsp)(void);	void (*wake_rsp)(void);	void (*restart_rsp)(void);	void (*radioset_rsp)(void);	void (*reject_rsp)(struct cflayer *layer, u8 linkid,				struct cflayer *client_layer);}; /* Link Setup Parameters for CAIF-Links. */struct cfctrl_link_param {	enum cfctrl_srv linktype;/* (T3,T0) Type of Channel */	u8 priority;		  /* (P4,P0) Priority of the channel */	u8 phyid;		  /* (U2-U0) Physical interface to connect */	u8 endpoint;		  /* (E1,E0) Endpoint for data channels */	u8 chtype;		  /* (H1,H0) Channel-Type, applies to				   *            VEI, DEBUG */	union {		struct {			u8 connid;	/*  (D7,D0) Video LinkId */		} video; 		struct {			u32 connid;	/* (N31,Ngit0) Connection ID used					 *  for Datagram */		} datagram; 		struct {			u32 connid;	/* Connection ID used for RFM */			char volume[20];	/* Volume to mount for RFM */		} rfm;		/* Configuration for RFM */ 		struct {			u16 fifosize_kb;	/* Psock FIFO size in KB */			u16 fifosize_bufs;	/* Psock # signal buffers */			char name[16];	/* Name of the PSOCK service */			u8 params[255];	/* Link setup Parameters> */			u16 paramlen;	/* Length of Link Setup						 *   Parameters */		} utility;	/* Configuration for Utility Links (Psock) */	} u;}; /* This structure is used internally in CFCTRL */struct cfctrl_request_info {	int sequence_no;	enum cfctrl_cmd cmd;	u8 channel_id;	struct cfctrl_link_param param;	struct cflayer *client_layer;	struct list_head list;}; struct cfctrl {	struct cfsrvl serv;	struct cfctrl_rsp res;	atomic_t req_seq_no;	atomic_t rsp_seq_no;	struct list_head list;	/* Protects from simultaneous access to first_req list */	spinlock_t info_list_lock;#ifndef CAIF_NO_LOOP	u8 loop_linkid;	int loop_linkused[256];	/* Protects simultaneous access to loop_linkid and loop_linkused */	spinlock_t loop_linkid_lock;#endif }; void cfctrl_enum_req(struct cflayer *cfctrl, u8 physlinkid);int cfctrl_linkup_request(struct cflayer *cfctrl,			   struct cfctrl_link_param *param,			   struct cflayer *user_layer);int  cfctrl_linkdown_req(struct cflayer *cfctrl, u8 linkid,			 struct cflayer *client); struct cflayer *cfctrl_create(void);struct cfctrl_rsp *cfctrl_get_respfuncs(struct cflayer *layer);int cfctrl_cancel_req(struct cflayer *layr, struct cflayer *adap_layer);void cfctrl_remove(struct cflayer *layr); #endif				/* CFCTRL_H_ */