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NetBSD/sys/net/if_stripvar.h

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New callout mechanism with two major improvements over the old timeout()/untimeout() API: - Clients supply callout handle storage, thus eliminating problems of resource allocation. - Insertion and removal of callouts is constant time, important as this facility is used quite a lot in the kernel. The old timeout()/untimeout() API has been removed from the kernel.
2000-03-23 10:01:25 +03:00
/* $NetBSD: if_stripvar.h,v 1.7 2000/03/23 07:03:26 thorpej Exp $ */
add multiple inclusion protection (and cleanup).
1998-02-09 20:43:44 +03:00
#ifndef _NET_IF_STRIPVAR_H_
#define _NET_IF_STRIPVAR_H_
Packet-mode driver for Metricom Ricochet radios (Starmode Radio IP).
1996-05-19 20:34:36 +04:00
/*
add multiple inclusion protection (and cleanup).
1998-02-09 20:43:44 +03:00
* Definitions for STRIP interface data structures
Packet-mode driver for Metricom Ricochet radios (Starmode Radio IP).
1996-05-19 20:34:36 +04:00
*
*/
Change the interface name from "st" to "strip", so as to match the pseudo-device option listed in the kernel config file, and to avoid a name clash with the "SCSI tape" driver.
1997-11-18 02:35:28 +03:00
struct strip_softc {
Packet-mode driver for Metricom Ricochet radios (Starmode Radio IP).
1996-05-19 20:34:36 +04:00
struct ifnet sc_if; /* network-visible interface */
Catch up to removal of if_unit and addition of if_xname and sc_unit, blindly following the changes to if_sl.c.
1996-05-20 02:09:36 +04:00
int sc_unit; /* XXX unit number */
Packet-mode driver for Metricom Ricochet radios (Starmode Radio IP).
1996-05-19 20:34:36 +04:00
struct ifqueue sc_fastq; /* interactive output queue */
struct tty *sc_ttyp; /* pointer to tty structure */
New callout mechanism with two major improvements over the old timeout()/untimeout() API: - Clients supply callout handle storage, thus eliminating problems of resource allocation. - Insertion and removal of callouts is constant time, important as this facility is used quite a lot in the kernel. The old timeout()/untimeout() API has been removed from the kernel.
2000-03-23 10:01:25 +03:00
struct callout sc_timo_ch; /* timeout callout */
Packet-mode driver for Metricom Ricochet radios (Starmode Radio IP).
1996-05-19 20:34:36 +04:00
u_char *sc_mp; /* pointer to next available buf char */
u_char *sc_ep; /* pointer to last available buf char */
u_char *sc_buf; /* input buffer */
u_char *sc_rxbuf; /* input destuffing buffer */
u_char *sc_txbuf; /* output stuffing buffer */
Update for the new mbuf code, in a slighly kludgy way. Basically, these drivers played a somewhat evil trick with clusters, which is now replaced by a somewhat evil trick with regular malloc'd memory.
1997-03-27 23:36:14 +03:00
u_char *sc_xxx; /* XXX don't ask... */
Packet-mode driver for Metricom Ricochet radios (Starmode Radio IP).
1996-05-19 20:34:36 +04:00
u_int sc_flags; /* see below */
long sc_oqlen; /* previous output queue size */
long sc_otimeout; /* number of times output's stalled */
Change the interface name from "st" to "strip", so as to match the pseudo-device option listed in the kernel config file, and to avoid a name clash with the "SCSI tape" driver.
1997-11-18 02:35:28 +03:00
#ifdef __NetBSD__
Packet-mode driver for Metricom Ricochet radios (Starmode Radio IP).
1996-05-19 20:34:36 +04:00
int sc_oldbufsize; /* previous output buffer size */
int sc_oldbufquot; /* previous output buffer quoting */
#endif
#ifdef INET /* XXX */
struct slcompress sc_comp; /* tcp compression data */
#endif
* Remove old, unused SLIP variables from softc. * Fix radio error-message parsing bug: old comparison against error prefix string off by the size of the Starmode link-level protocol field. * Fix radio reset finite state machine, given that parsing works properly. * Add debugging messages about reset FSM if IFF_DEBUG is set. * Remove #ifdefs notdef around back the check that discards newlines at the beginning of a frame. Every error message from the radio has a newline, as the radio send error messages terminated by \r\n, not just \r like data frames. Not dropping the \n garbles the following data frame. * Remove unused low-level debugging routines. * Reformat the low-level bytestuff/RLL code to match the canonical source. * Reduce MTU to 1100 bytes; 1200 bytes can overflow the radio buffers if the bytestuff/RLL does poorly. * Fix radio-probe string to _not_ include a frame delimiter (\r): sending a \r to the radio tickles a bug in the firmware, causing the radio to smash the next frame sent after the "**\r" probe string. * Add calls to the tty t_oproc routine to make sure the probe and reset strings get sent to the modem promptly, rather than waiting for the next packet. * Add PPP-style calls to the tty start-output function; seems to reduce latency marginally. still to do: * Flush output queue if resetting, since the radio is going to drop frames on the floor anyway if it needs resetting. * Reduce tty start-output calls.
1996-08-02 06:53:39 +04:00
int sc_state; /* Radio reset state-machine */
#define ST_ALIVE 0x0 /* answered probe */
#define ST_PROBE_SENT 0x1 /* probe sent, answer pending */
#define ST_DEAD 0x2 /* no answer to probe; do reset */
long sc_statetimo; /* When (secs) current state ends */
Packet-mode driver for Metricom Ricochet radios (Starmode Radio IP).
1996-05-19 20:34:36 +04:00
caddr_t sc_bpf; /* BPF data */
};
* Remove old, unused SLIP variables from softc. * Fix radio error-message parsing bug: old comparison against error prefix string off by the size of the Starmode link-level protocol field. * Fix radio reset finite state machine, given that parsing works properly. * Add debugging messages about reset FSM if IFF_DEBUG is set. * Remove #ifdefs notdef around back the check that discards newlines at the beginning of a frame. Every error message from the radio has a newline, as the radio send error messages terminated by \r\n, not just \r like data frames. Not dropping the \n garbles the following data frame. * Remove unused low-level debugging routines. * Reformat the low-level bytestuff/RLL code to match the canonical source. * Reduce MTU to 1100 bytes; 1200 bytes can overflow the radio buffers if the bytestuff/RLL does poorly. * Fix radio-probe string to _not_ include a frame delimiter (\r): sending a \r to the radio tickles a bug in the firmware, causing the radio to smash the next frame sent after the "**\r" probe string. * Add calls to the tty t_oproc routine to make sure the probe and reset strings get sent to the modem promptly, rather than waiting for the next packet. * Add PPP-style calls to the tty start-output function; seems to reduce latency marginally. still to do: * Flush output queue if resetting, since the radio is going to drop frames on the floor anyway if it needs resetting. * Reduce tty start-output calls.
1996-08-02 06:53:39 +04:00
/* Internal flags */
#define SC_ERROR 0x0001 /* Incurred error reading current pkt*/
#define SC_TIMEOUT 0x00000400 /* timeout is currently pending */
Packet-mode driver for Metricom Ricochet radios (Starmode Radio IP).
1996-05-19 20:34:36 +04:00
/* visible flags */
#define SC_COMPRESS IFF_LINK0 /* compress TCP traffic */
#define SC_NOICMP IFF_LINK1 /* supress ICMP traffic */
#define SC_AUTOCOMP IFF_LINK2 /* auto-enable TCP compression */
#ifdef _KERNEL
void stripattach __P((int n));
void stripclose __P((struct tty *));
void stripinput __P((int, struct tty *));
int stripioctl __P((struct ifnet *, u_long, caddr_t));
int stripopen __P((dev_t, struct tty *));
int stripoutput __P((struct ifnet *,
struct mbuf *, struct sockaddr *, struct rtentry *));
void stripstart __P((struct tty *));
int striptioctl __P((struct tty *, u_long, caddr_t, int));
#endif /* _KERNEL */
add multiple inclusion protection (and cleanup).
1998-02-09 20:43:44 +03:00
#endif /* _NET_IF_STRIPVAR_H_ */