/* @(#)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
