Copied from ../../arch/vax/if/if_uba.h,v
This commit is contained in:
ragge
parent
d467771b45
commit
0f8d40c444
143
sys/dev/qbus/if_uba.h
Normal file
143
sys/dev/qbus/if_uba.h
Normal file
@ -0,0 +1,143 @@
|
||||
/* $NetBSD: if_uba.h,v 1.7 1999/06/06 20:45:02 ragge Exp $ */
|
||||
|
||||
/*
|
||||
* Copyright (c) 1982, 1986 Regents of the University of California.
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
* 3. All advertising materials mentioning features or use of this software
|
||||
* must display the following acknowledgement:
|
||||
* This product includes software developed by the University of
|
||||
* California, Berkeley and its contributors.
|
||||
* 4. Neither the name of the University nor the names of its contributors
|
||||
* may be used to endorse or promote products derived from this software
|
||||
* without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
||||
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||||
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
||||
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||||
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
||||
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||||
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||||
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
||||
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||
* SUCH DAMAGE.
|
||||
*
|
||||
* @(#)if_uba.h 7.4 (Berkeley) 6/28/90
|
||||
*/
|
||||
|
||||
/*
|
||||
* Structure and routine definitions
|
||||
* for UNIBUS network interfaces.
|
||||
*/
|
||||
|
||||
#define IF_MAXNUBAMR 10
|
||||
/*
|
||||
* Each interface has structures giving information
|
||||
* about UNIBUS resources held by the interface
|
||||
* for each send and receive buffer.
|
||||
*
|
||||
* We hold IF_NUBAMR map registers for datagram data, starting
|
||||
* at ifr_mr. Map register ifr_mr[-1] maps the local network header
|
||||
* ending on the page boundary. Bdp's are reserved for read and for
|
||||
* write, given by ifr_bdp. The prototype of the map register for
|
||||
* read and for write is saved in ifr_proto.
|
||||
*
|
||||
* When write transfers are not full pages on page boundaries we just
|
||||
* copy the data into the pages mapped on the UNIBUS and start the
|
||||
* transfer. If a write transfer is of a (1024 byte) page on a page
|
||||
* boundary, we swap in UNIBUS pte's to reference the pages, and then
|
||||
* remap the initial pages (from ifu_wmap) when the transfer completes.
|
||||
*
|
||||
* When read transfers give whole pages of data to be input, we
|
||||
* allocate page frames from a network page list and trade them
|
||||
* with the pages already containing the data, mapping the allocated
|
||||
* pages to replace the input pages for the next UNIBUS data input.
|
||||
*/
|
||||
|
||||
/*
|
||||
* Information per interface.
|
||||
*/
|
||||
struct ifubinfo {
|
||||
short iff_flags; /* used during uballoc's */
|
||||
short iff_hlen; /* local net header length */
|
||||
struct uba_regs *iff_uba; /* uba adaptor regs, in vm */
|
||||
struct pte *iff_ubamr; /* uba map regs, in vm */
|
||||
struct uba_softc *iff_softc; /* uba */
|
||||
};
|
||||
|
||||
/*
|
||||
* Information per buffer.
|
||||
*/
|
||||
struct ifrw {
|
||||
caddr_t ifrw_addr; /* virt addr of header */
|
||||
short ifrw_bdp; /* unibus bdp */
|
||||
short ifrw_flags; /* type, etc. */
|
||||
#define IFRW_W 0x01 /* is a transmit buffer */
|
||||
int ifrw_info; /* value from ubaalloc */
|
||||
int ifrw_proto; /* map register prototype */
|
||||
struct pte *ifrw_mr; /* base of map registers */
|
||||
};
|
||||
|
||||
/*
|
||||
* Information per transmit buffer, including the above.
|
||||
*/
|
||||
struct ifxmt {
|
||||
struct ifrw ifrw;
|
||||
caddr_t ifw_base; /* virt addr of buffer */
|
||||
struct pte ifw_wmap[IF_MAXNUBAMR]; /* base pages for output */
|
||||
struct mbuf *ifw_xtofree; /* pages being dma'd out */
|
||||
short ifw_xswapd; /* mask of clusters swapped */
|
||||
short ifw_nmr; /* number of entries in wmap */
|
||||
};
|
||||
#define ifw_addr ifrw.ifrw_addr
|
||||
#define ifw_bdp ifrw.ifrw_bdp
|
||||
#define ifw_flags ifrw.ifrw_flags
|
||||
#define ifw_info ifrw.ifrw_info
|
||||
#define ifw_proto ifrw.ifrw_proto
|
||||
#define ifw_mr ifrw.ifrw_mr
|
||||
|
||||
/*
|
||||
* Most interfaces have a single receive and a single transmit buffer,
|
||||
* and use struct ifuba to store all of the unibus information.
|
||||
*/
|
||||
struct ifuba {
|
||||
struct ifubinfo ifu_info;
|
||||
struct ifrw ifu_r;
|
||||
struct ifxmt ifu_xmt;
|
||||
};
|
||||
|
||||
#define ifu_softc ifu_info.iff_softc
|
||||
#define ifu_hlen ifu_info.iff_hlen
|
||||
#define ifu_uba ifu_info.iff_uba
|
||||
#define ifu_ubamr ifu_info.iff_ubamr
|
||||
#define ifu_flags ifu_info.iff_flags
|
||||
#define ifu_w ifu_xmt.ifrw
|
||||
#define ifu_xtofree ifu_xmt.ifw_xtofree
|
||||
|
||||
#ifdef _KERNEL
|
||||
#define if_ubainit(ifuba, uban, hlen, nmr) \
|
||||
if_ubaminit(&(ifuba)->ifu_info, uban, hlen, nmr, \
|
||||
&(ifuba)->ifu_r, 1, &(ifuba)->ifu_xmt, 1)
|
||||
#define if_rubaget(ifu, totlen, off0, ifp) \
|
||||
if_ubaget(&(ifu)->ifu_info, &(ifu)->ifu_r, totlen, off0, ifp)
|
||||
#define if_wubaput(ifu, m) \
|
||||
if_ubaput(&(ifu)->ifu_info, &(ifu)->ifu_xmt, m)
|
||||
|
||||
/* Prototypes */
|
||||
int if_ubaminit __P((struct ifubinfo *, struct uba_softc *, int, int,
|
||||
struct ifrw *, int, struct ifxmt *, int));
|
||||
int if_ubaput __P((struct ifubinfo *, struct ifxmt *, struct mbuf *));
|
||||
struct mbuf *if_ubaget __P((struct ifubinfo *, struct ifrw *, int,
|
||||
struct ifnet *));
|
||||
|
||||
#endif
|
||||
Loading…
Reference in New Issue
Block a user