/*      @(#)commands.h 1.1 92/07/30 Copyright Sun Micro"             *//* Command Set used for Host driver requests to Narya *	and for Narya F/W requests to the Host driver *//* There are two command classes: data transmission requests and indications, *	and directives from the driver or status/emergency reports from *	the Narya F/W. * *	The commands are issued by allocating a Cmd_buff from Np_ram, *	filling in the relevant fields, and posting the Cmd_buff pointer *	onto the appropriate queue; command posting implies interrupting the *	command recipient. These commands are of varying length, and the *	Np_ram pool for these blocks will be managed as two circular buffers, *	one for the Host and one for Narya F/W. * * Narya Command Reception: all commands are received by the MSGin *	process (or ISR if tolerable); this process exhaustively reads *	the command queue. For each queue entry, the MSGin sorts on the *	command type, digests the contents into internal structures, releases *	the Cmd_buff, and posts these digested commands via message exchanges *	to the interested processes (e.g. receive_proc, xmit_proc, smt_proc, *	misc_proc, plm_proc, etc.). *//* NOTE: For the time being (while we are only duplicating ethernet *	capabilities), there will be no FDDI specific information in any *	commands. */typedef struct {	enum {		/* Host to Narya Commands */		TRANSMIT,		NET_CONFIG,		CTLR_CONFIG,		INQUIRE_STATUS,		/* Narya to Host Commands */		RECEIVE,		RELEASE_XMIT_BUFFER,	/* Frees transmit buffers and					 * acknowledge					 */		STATUS,		CMNDS_ACK,		/* command receipt acknowledgement */		GET_NETMAP_ENT,		/* Get a network map entry */		NETMAP_ENT,		/* Provide a netmap entry to the host */		SMT_CONFIG,		/* Command to set smt frame switches */	} type;	unsigned long	command_id;	/* used in any correspondence					 * pertaining to this command					 */	enum {		IFN_fddi = 0,		/* FDDI */		IFN_ether,		/* Ethernet */		IFN_serial,		/* Serial Line Internet Proto.*/		IFN_hss,		/* High Speed Serial */	} interface;			/* Interface name */	union {		struct {			int	fc;	/* frame control */			/* Source address comes from a separate			 * NET_CONFIG command.			 */			/* Destination address is the first thing in the packet			 * the supplied fc indicates long or short addresses.			 */			/* XXX - IMPORTANT QUESTION			 *			 * For the moment we assume that we can map all of a			 * packet into DVMA space at one time. If this			 * assumption is incorrect, the command semantics			 * will have to change. Worst case would be the max			 * packet (4500 bytes) contained in about 40 112 byte			 * mbufs each on a different kernel page, thereby			 * requiring 40 pages of DVMA space (gak!).			 */#define MAX_DMASEG 6	/* N.B. Cannot be > value in dma.h */			int		nbuf;			/* FDDI: sync, async, FC bits, etc... */			struct {				unsigned char	*buffer;				unsigned int	length;			 } bufdesc[MAX_DMASEG];		} transmit;		struct {			/* It is the driver's responsibility to associate			 * xmit_command_id with the TRANSMIT command's original			 * command_id and release the appropriate DVMA mappings.			 */			unsigned long	xmit_command_id;			enum { COPY_OK, COPY_FAILED }	success;			unsigned char	*failed_buffer;		} release_xmit_buffer;#define MAX_RECV_BUF 6	/* N.B. Cannot be > value in dma.h */		struct {			 int			fc;			 int	 		nbuf;			 /* FDDI: sync, async, FC bits, etc... */			 enum {RCV_ERRORS, RCV_OK}	status;			 struct {				unsigned char	*buffer;				unsigned short	length;			 } bufdesc[MAX_RECV_BUF];		} receive;		struct {			/* Source addresses for long and short address forms */			enum {				IFA_Up,		/* Bring interface up */				IFA_Down,	/* Bring interface down */				IFA_Mode_change,/* Change interface mode */				IFA_GAT_add,	/* Add to Group Address Table */				IFA_GAT_delete,	/* Delete from G.A.T. */				IFA_GAT_reset	/* Clear entire table */			} action;		/* Interface Action */			enum {				Mode_Non_promiscuous = 0,				Mode_Promiscuous = 1, /* Receive All packets */			} mode;			mac_addr_t	mac_addr_long;			short_mac_addr_t	mac_addr_short;		} net_config;		struct fddi_ctlr_config {			int	fddi_tvx, 	/* time between end delims */				fddi_treq,				fddi_tmax;	/* TMAX value */		} ctlr_config;		struct fddi_smt_config{			boolean_t	resp_frame_sw, 						nif_frame_sw,						disable_fw_agent;		} smt_config;		struct {			/* Freq at which to return FW status to host */			/* 0 for this value means stop sending status*/			int	freq_status; 		} inq_status;		struct fddi_status_struct {			/* What is the Configuration and Ring Stability */			int		ring_operational;			ec_state_t	ecm_state;			ec_status_t	ecm_status;			cf_state_t	cfm_state;			rm_state_t	rmt_state;			struct {				short	dummy;				uchar_t	remotephytype;				uchar_t	state;			} pcma;			struct {				short	dummy;				uchar_t	remotephytype;				uchar_t	state;			} pcmb;			obp_state_t	obp_state;	/* Optical bypass */			/* Exceptional condition counts for RECV and XMIT */			ulong_t	ring_toggles;	/* # of ring up events */			ulong_t	receive_full;	/* buffer ram is full */			ulong_t	receive_error;	/* packets received in error */			ulong_t	transmit_abort;	/* # of xmit abort conditions */			/* Throughput statistics */			ulong_t		packets_xmit,	/* XXX redundant */					bytes_xmit,	/* XXX redundant */					packets_recv,	/* XXX redundant */					bytes_recv;	/* XXX redundant */		} status;	} req;} command_t;struct fddi_netmap_entry {	union {		int 	station_info; /* Coded info of station */			struct {				char	untopology,					dntopology,					topology,					dupladdress;			} smt_s;		} smtu;	union {		int 	phya_info;		struct {			uchar_t	phya_connectstate,				phya_remotephytype;				short	phya_dummy;			} phya_s;		} phya_u;	union {		int	phyb_info;		struct {			uchar_t	phyb_connectstate,				phyb_remotephytype;				short	phyb_dummy;			} phyb_s;		} phyb_u;	int		t_req,		/* requested trt */			tneg,		/* negotiated trt */			tmax,		/* my tmax value */			tvx,		/* my tvx value */			f_ct,		/* Frame count */			e_ct,		/* Error count */			l_ct;		/* Lost packet count */	mac_addr_t	net_addr,	/* address of station */				us_neighbor,	/* address of USN */				ds_neighbor;	/* address of DSN */	int		smt_revision;} ;#define FDDI_TIMER_CONFIG 1#define FDDI_SMT_SWITCHES 2