Revision b03c720211ea5ec027ad85f1e147e3d8122429ba authored by Pyun YongHyeon on 14 January 2010, 21:54:20 UTC, committed by Pyun YongHyeon on 14 January 2010, 21:54:20 UTC
Add bus_dma(9) and endianness support to ste(4).
o Sorted includes and added missing header files.
o Added basic endianness support. In theory ste(4) should work on
any architectures.
o Remove the use of contigmalloc(9), contigfree(9) and vtophys(9).
o Added 8 byte alignment limitation of TX/RX descriptor.
o Added 1 byte alignment requirement for TX/RX buffers.
o ste(4) controllers does not support DAC. Limit DMA address space
to be within 32bit address.
o Added spare DMA map to gracefully recover from DMA map failure.
o Removed dead code for checking STE_RXSTAT_DMADONE bit. The bit
was already checked in each iteration of loop so it can't be true.
o Added second argument count to ste_rxeof(). It is used to limit
number of iterations done in RX handler. ATM polling is the only
consumer.
o Removed ste_rxeoc() which was added to address RX stuck issue
(cvs rev 1.66). Unlike TX descriptors, ST201 supports chaining
descriptors to form a ring for RX descriptors. If RX descriptor
chaining is not supported it's possible for controller to stop
receiving incoming frames once controller pass the end of RX
descriptor which in turn requires driver post new RX
descriptors to receive more frames. For TX descriptors which
does not support chaning, we exactly do manual chaining in
driver by concatenating new descriptors to the end of previous
TX chain.
Maybe the workaround was borrowed from other drivers that does
not support RX descriptor chaining, which is not valid for ST201
controllers. I still have no idea how this address RX stuck
issue and I can't reproduce the RX stuck issue on DFE-550TX
controller.
o Removed hw.ste_rxsyncs sysctl as the workaround was removed.
o TX/RX side bus_dmamap_load_mbuf_sg(9) support.
o Reimplemented optimized ste_encap().
o Simplified TX logic of ste_start_locked().
o Added comments for TFD/RFD requirements.
o Increased number of RX descriptors to 128 from 64. 128 gave much
better performance than 64 under high network loads.
1 parent d982c88
ipv6cp.h
/*
ipv6cp.h - PPP IPV6 Control Protocol.
Copyright (C) 1999 Tommi Komulainen <Tommi.Komulainen@iki.fi>
Redistribution and use in source and binary forms are permitted
provided that the above copyright notice and this paragraph are
duplicated in all such forms. The name of the author may not be
used to endorse or promote products derived from this software
without specific prior written permission.
THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*/
/* Original version, based on RFC2023 :
Copyright (c) 1995, 1996, 1997 Francis.Dupont@inria.fr, INRIA Rocquencourt,
Alain.Durand@imag.fr, IMAG,
Jean-Luc.Richier@imag.fr, IMAG-LSR.
Copyright (c) 1998, 1999 Francis.Dupont@inria.fr, GIE DYADE,
Alain.Durand@imag.fr, IMAG,
Jean-Luc.Richier@imag.fr, IMAG-LSR.
Ce travail a été fait au sein du GIE DYADE (Groupement d'Intéręt
Économique ayant pour membres BULL S.A. et l'INRIA).
Ce logiciel informatique est disponible aux conditions
usuelles dans la recherche, c'est-ŕ-dire qu'il peut
ętre utilisé, copié, modifié, distribué ŕ l'unique
condition que ce texte soit conservé afin que
l'origine de ce logiciel soit reconnue.
Le nom de l'Institut National de Recherche en Informatique
et en Automatique (INRIA), de l'IMAG, ou d'une personne morale
ou physique ayant participé ŕ l'élaboration de ce logiciel ne peut
ętre utilisé sans son accord préalable explicite.
Ce logiciel est fourni tel quel sans aucune garantie,
support ou responsabilité d'aucune sorte.
Ce logiciel est dérivé de sources d'origine
"University of California at Berkeley" et
"Digital Equipment Corporation" couvertes par des copyrights.
L'Institut d'Informatique et de Mathématiques Appliquées de Grenoble (IMAG)
est une fédération d'unités mixtes de recherche du CNRS, de l'Institut National
Polytechnique de Grenoble et de l'Université Joseph Fourier regroupant
sept laboratoires dont le laboratoire Logiciels, Systčmes, Réseaux (LSR).
This work has been done in the context of GIE DYADE (joint R & D venture
between BULL S.A. and INRIA).
This software is available with usual "research" terms
with the aim of retain credits of the software.
Permission to use, copy, modify and distribute this software for any
purpose and without fee is hereby granted, provided that the above
copyright notice and this permission notice appear in all copies,
and the name of INRIA, IMAG, or any contributor not be used in advertising
or publicity pertaining to this material without the prior explicit
permission. The software is provided "as is" without any
warranties, support or liabilities of any kind.
This software is derived from source code from
"University of California at Berkeley" and
"Digital Equipment Corporation" protected by copyrights.
Grenoble's Institute of Computer Science and Applied Mathematics (IMAG)
is a federation of seven research units funded by the CNRS, National
Polytechnic Institute of Grenoble and University Joseph Fourier.
The research unit in Software, Systems, Networks (LSR) is member of IMAG.
*/
/*
* Derived from :
*
*
* ipcp.h - IP Control Protocol definitions.
*
* Copyright (c) 1989 Carnegie Mellon University.
* All rights reserved.
*
* Redistribution and use in source and binary forms are permitted
* provided that the above copyright notice and this paragraph are
* duplicated in all such forms and that any documentation,
* advertising materials, and other materials related to such
* distribution and use acknowledge that the software was developed
* by Carnegie Mellon University. The name of the
* University may not be used to endorse or promote products derived
* from this software without specific prior written permission.
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
* WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*
* $Id: ipv6cp.h,v 1.3 1999/09/30 19:57:45 masputra Exp $
* $FreeBSD$
*/
/*
* Options.
*/
#define CI_IFACEID 1 /* Interface Identifier */
#define CI_COMPRESSTYPE 2 /* Compression Type */
/* No compression types yet defined.
*#define IPV6CP_COMP 0x004f
*/
typedef struct ipv6cp_options {
int neg_ifaceid; /* Negotiate interface identifier? */
int req_ifaceid; /* Ask peer to send interface identifier? */
int accept_local; /* accept peer's value for iface id? */
int opt_local; /* ourtoken set by option */
int opt_remote; /* histoken set by option */
int use_ip; /* use IP as interface identifier */
#if defined(SOL2)
int use_persistent; /* use uniquely persistent value for address */
#endif /* defined(SOL2) */
int neg_vj; /* Van Jacobson Compression? */
u_short vj_protocol; /* protocol value to use in VJ option */
eui64_t ourid, hisid; /* Interface identifiers */
} ipv6cp_options;
extern fsm ipv6cp_fsm[];
extern ipv6cp_options ipv6cp_wantoptions[];
extern ipv6cp_options ipv6cp_gotoptions[];
extern ipv6cp_options ipv6cp_allowoptions[];
extern ipv6cp_options ipv6cp_hisoptions[];
extern struct protent ipv6cp_protent;
extern int setifaceid __P((char **arg));
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