dd00cc486a
Transform some calls to kmalloc/memset to a single kzalloc (or kcalloc). Here is a short excerpt of the semantic patch performing this transformation: @@ type T2; expression x; identifier f,fld; expression E; expression E1,E2; expression e1,e2,e3,y; statement S; @@ x = - kmalloc + kzalloc (E1,E2) ... when != \(x->fld=E;\|y=f(...,x,...);\|f(...,x,...);\|x=E;\|while(...) S\|for(e1;e2;e3) S\) - memset((T2)x,0,E1); @@ expression E1,E2,E3; @@ - kzalloc(E1 * E2,E3) + kcalloc(E1,E2,E3) [akpm@linux-foundation.org: get kcalloc args the right way around] Signed-off-by: Yoann Padioleau <padator@wanadoo.fr> Cc: Richard Henderson <rth@twiddle.net> Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Acked-by: Russell King <rmk@arm.linux.org.uk> Cc: Bryan Wu <bryan.wu@analog.com> Acked-by: Jiri Slaby <jirislaby@gmail.com> Cc: Dave Airlie <airlied@linux.ie> Acked-by: Roland Dreier <rolandd@cisco.com> Cc: Jiri Kosina <jkosina@suse.cz> Acked-by: Dmitry Torokhov <dtor@mail.ru> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Acked-by: Mauro Carvalho Chehab <mchehab@infradead.org> Acked-by: Pierre Ossman <drzeus-list@drzeus.cx> Cc: Jeff Garzik <jeff@garzik.org> Cc: "David S. Miller" <davem@davemloft.net> Acked-by: Greg KH <greg@kroah.com> Cc: James Bottomley <James.Bottomley@steeleye.com> Cc: "Antonino A. Daplas" <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
943 lines
30 KiB
C
943 lines
30 KiB
C
/*
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** -----------------------------------------------------------------------------
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**
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** Perle Specialix driver for Linux
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** Ported from existing RIO Driver for SCO sources.
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*
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* (C) 1990 - 2000 Specialix International Ltd., Byfleet, Surrey, UK.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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**
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** Module : riotable.c
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** SID : 1.2
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** Last Modified : 11/6/98 10:33:47
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** Retrieved : 11/6/98 10:33:50
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**
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** ident @(#)riotable.c 1.2
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**
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** -----------------------------------------------------------------------------
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*/
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#ifdef SCCS_LABELS
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static char *_riotable_c_sccs_ = "@(#)riotable.c 1.2";
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#endif
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#include <linux/module.h>
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#include <linux/slab.h>
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#include <linux/errno.h>
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#include <linux/interrupt.h>
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#include <linux/string.h>
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#include <asm/io.h>
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#include <asm/system.h>
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#include <asm/string.h>
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#include <asm/semaphore.h>
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#include <asm/uaccess.h>
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#include <linux/termios.h>
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#include <linux/serial.h>
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#include <linux/generic_serial.h>
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#include "linux_compat.h"
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#include "rio_linux.h"
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#include "pkt.h"
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#include "daemon.h"
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#include "rio.h"
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#include "riospace.h"
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#include "cmdpkt.h"
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#include "map.h"
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#include "rup.h"
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#include "port.h"
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#include "riodrvr.h"
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#include "rioinfo.h"
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#include "func.h"
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#include "errors.h"
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#include "pci.h"
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#include "parmmap.h"
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#include "unixrup.h"
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#include "board.h"
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#include "host.h"
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#include "phb.h"
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#include "link.h"
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#include "cmdblk.h"
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#include "route.h"
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#include "cirrus.h"
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#include "rioioctl.h"
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#include "param.h"
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#include "protsts.h"
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/*
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** A configuration table has been loaded. It is now up to us
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** to sort it out and use the information contained therein.
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*/
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int RIONewTable(struct rio_info *p)
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{
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int Host, Host1, Host2, NameIsUnique, Entry, SubEnt;
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struct Map *MapP;
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struct Map *HostMapP;
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struct Host *HostP;
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char *cptr;
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/*
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** We have been sent a new table to install. We need to break
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** it down into little bits and spread it around a bit to see
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** what we have got.
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*/
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/*
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** Things to check:
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** (things marked 'xx' aren't checked any more!)
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** (1) That there are no booted Hosts/RTAs out there.
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** (2) That the names are properly formed
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** (3) That blank entries really are.
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** xx (4) That hosts mentioned in the table actually exist. xx
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** (5) That the IDs are unique (per host).
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** (6) That host IDs are zero
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** (7) That port numbers are valid
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** (8) That port numbers aren't duplicated
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** (9) That names aren't duplicated
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** xx (10) That hosts that actually exist are mentioned in the table. xx
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*/
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rio_dprintk(RIO_DEBUG_TABLE, "RIONewTable: entering(1)\n");
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if (p->RIOSystemUp) { /* (1) */
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p->RIOError.Error = HOST_HAS_ALREADY_BEEN_BOOTED;
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return -EBUSY;
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}
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p->RIOError.Error = NOTHING_WRONG_AT_ALL;
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p->RIOError.Entry = -1;
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p->RIOError.Other = -1;
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for (Entry = 0; Entry < TOTAL_MAP_ENTRIES; Entry++) {
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MapP = &p->RIOConnectTable[Entry];
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if ((MapP->Flags & RTA16_SECOND_SLOT) == 0) {
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rio_dprintk(RIO_DEBUG_TABLE, "RIONewTable: entering(2)\n");
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cptr = MapP->Name; /* (2) */
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cptr[MAX_NAME_LEN - 1] = '\0';
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if (cptr[0] == '\0') {
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memcpy(MapP->Name, MapP->RtaUniqueNum ? "RTA NN" : "HOST NN", 8);
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MapP->Name[5] = '0' + Entry / 10;
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MapP->Name[6] = '0' + Entry % 10;
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}
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while (*cptr) {
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if (*cptr < ' ' || *cptr > '~') {
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p->RIOError.Error = BAD_CHARACTER_IN_NAME;
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p->RIOError.Entry = Entry;
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return -ENXIO;
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}
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cptr++;
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}
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}
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/*
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** If the entry saved was a tentative entry then just forget
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** about it.
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*/
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if (MapP->Flags & SLOT_TENTATIVE) {
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MapP->HostUniqueNum = 0;
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MapP->RtaUniqueNum = 0;
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continue;
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}
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rio_dprintk(RIO_DEBUG_TABLE, "RIONewTable: entering(3)\n");
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if (!MapP->RtaUniqueNum && !MapP->HostUniqueNum) { /* (3) */
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if (MapP->ID || MapP->SysPort || MapP->Flags) {
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rio_dprintk(RIO_DEBUG_TABLE, "%s pretending to be empty but isn't\n", MapP->Name);
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p->RIOError.Error = TABLE_ENTRY_ISNT_PROPERLY_NULL;
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p->RIOError.Entry = Entry;
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return -ENXIO;
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}
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rio_dprintk(RIO_DEBUG_TABLE, "!RIO: Daemon: test (3) passes\n");
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continue;
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}
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rio_dprintk(RIO_DEBUG_TABLE, "RIONewTable: entering(4)\n");
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for (Host = 0; Host < p->RIONumHosts; Host++) { /* (4) */
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if (p->RIOHosts[Host].UniqueNum == MapP->HostUniqueNum) {
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HostP = &p->RIOHosts[Host];
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/*
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** having done the lookup, we don't really want to do
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** it again, so hang the host number in a safe place
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*/
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MapP->Topology[0].Unit = Host;
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break;
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}
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}
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if (Host >= p->RIONumHosts) {
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rio_dprintk(RIO_DEBUG_TABLE, "RTA %s has unknown host unique number 0x%x\n", MapP->Name, MapP->HostUniqueNum);
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MapP->HostUniqueNum = 0;
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/* MapP->RtaUniqueNum = 0; */
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/* MapP->ID = 0; */
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/* MapP->Flags = 0; */
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/* MapP->SysPort = 0; */
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/* MapP->Name[0] = 0; */
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continue;
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}
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rio_dprintk(RIO_DEBUG_TABLE, "RIONewTable: entering(5)\n");
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if (MapP->RtaUniqueNum) { /* (5) */
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if (!MapP->ID) {
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rio_dprintk(RIO_DEBUG_TABLE, "RIO: RTA %s has been allocated an ID of zero!\n", MapP->Name);
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p->RIOError.Error = ZERO_RTA_ID;
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p->RIOError.Entry = Entry;
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return -ENXIO;
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}
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if (MapP->ID > MAX_RUP) {
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rio_dprintk(RIO_DEBUG_TABLE, "RIO: RTA %s has been allocated an invalid ID %d\n", MapP->Name, MapP->ID);
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p->RIOError.Error = ID_NUMBER_OUT_OF_RANGE;
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p->RIOError.Entry = Entry;
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return -ENXIO;
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}
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for (SubEnt = 0; SubEnt < Entry; SubEnt++) {
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if (MapP->HostUniqueNum == p->RIOConnectTable[SubEnt].HostUniqueNum && MapP->ID == p->RIOConnectTable[SubEnt].ID) {
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rio_dprintk(RIO_DEBUG_TABLE, "Dupl. ID number allocated to RTA %s and RTA %s\n", MapP->Name, p->RIOConnectTable[SubEnt].Name);
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p->RIOError.Error = DUPLICATED_RTA_ID;
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p->RIOError.Entry = Entry;
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p->RIOError.Other = SubEnt;
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return -ENXIO;
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}
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/*
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** If the RtaUniqueNum is the same, it may be looking at both
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** entries for a 16 port RTA, so check the ids
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*/
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if ((MapP->RtaUniqueNum == p->RIOConnectTable[SubEnt].RtaUniqueNum)
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&& (MapP->ID2 != p->RIOConnectTable[SubEnt].ID)) {
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rio_dprintk(RIO_DEBUG_TABLE, "RTA %s has duplicate unique number\n", MapP->Name);
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rio_dprintk(RIO_DEBUG_TABLE, "RTA %s has duplicate unique number\n", p->RIOConnectTable[SubEnt].Name);
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p->RIOError.Error = DUPLICATE_UNIQUE_NUMBER;
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p->RIOError.Entry = Entry;
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p->RIOError.Other = SubEnt;
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return -ENXIO;
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}
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}
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rio_dprintk(RIO_DEBUG_TABLE, "RIONewTable: entering(7a)\n");
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/* (7a) */
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if ((MapP->SysPort != NO_PORT) && (MapP->SysPort % PORTS_PER_RTA)) {
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rio_dprintk(RIO_DEBUG_TABLE, "TTY Port number %d-RTA %s is not a multiple of %d!\n", (int) MapP->SysPort, MapP->Name, PORTS_PER_RTA);
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p->RIOError.Error = TTY_NUMBER_OUT_OF_RANGE;
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p->RIOError.Entry = Entry;
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return -ENXIO;
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}
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rio_dprintk(RIO_DEBUG_TABLE, "RIONewTable: entering(7b)\n");
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/* (7b) */
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if ((MapP->SysPort != NO_PORT) && (MapP->SysPort >= RIO_PORTS)) {
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rio_dprintk(RIO_DEBUG_TABLE, "TTY Port number %d for RTA %s is too big\n", (int) MapP->SysPort, MapP->Name);
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p->RIOError.Error = TTY_NUMBER_OUT_OF_RANGE;
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p->RIOError.Entry = Entry;
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return -ENXIO;
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}
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for (SubEnt = 0; SubEnt < Entry; SubEnt++) {
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if (p->RIOConnectTable[SubEnt].Flags & RTA16_SECOND_SLOT)
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continue;
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if (p->RIOConnectTable[SubEnt].RtaUniqueNum) {
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rio_dprintk(RIO_DEBUG_TABLE, "RIONewTable: entering(8)\n");
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/* (8) */
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if ((MapP->SysPort != NO_PORT) && (MapP->SysPort == p->RIOConnectTable[SubEnt].SysPort)) {
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rio_dprintk(RIO_DEBUG_TABLE, "RTA %s:same TTY port # as RTA %s (%d)\n", MapP->Name, p->RIOConnectTable[SubEnt].Name, (int) MapP->SysPort);
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p->RIOError.Error = TTY_NUMBER_IN_USE;
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p->RIOError.Entry = Entry;
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p->RIOError.Other = SubEnt;
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return -ENXIO;
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}
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rio_dprintk(RIO_DEBUG_TABLE, "RIONewTable: entering(9)\n");
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if (strcmp(MapP->Name, p->RIOConnectTable[SubEnt].Name) == 0 && !(MapP->Flags & RTA16_SECOND_SLOT)) { /* (9) */
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rio_dprintk(RIO_DEBUG_TABLE, "RTA name %s used twice\n", MapP->Name);
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p->RIOError.Error = NAME_USED_TWICE;
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p->RIOError.Entry = Entry;
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p->RIOError.Other = SubEnt;
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return -ENXIO;
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}
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}
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}
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} else { /* (6) */
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rio_dprintk(RIO_DEBUG_TABLE, "RIONewTable: entering(6)\n");
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if (MapP->ID) {
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rio_dprintk(RIO_DEBUG_TABLE, "RIO:HOST %s has been allocated ID that isn't zero!\n", MapP->Name);
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p->RIOError.Error = HOST_ID_NOT_ZERO;
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p->RIOError.Entry = Entry;
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return -ENXIO;
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}
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if (MapP->SysPort != NO_PORT) {
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rio_dprintk(RIO_DEBUG_TABLE, "RIO: HOST %s has been allocated port numbers!\n", MapP->Name);
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p->RIOError.Error = HOST_SYSPORT_BAD;
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p->RIOError.Entry = Entry;
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return -ENXIO;
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}
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}
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}
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/*
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** wow! if we get here then it's a goody!
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*/
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/*
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** Zero the (old) entries for each host...
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*/
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for (Host = 0; Host < RIO_HOSTS; Host++) {
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for (Entry = 0; Entry < MAX_RUP; Entry++) {
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memset(&p->RIOHosts[Host].Mapping[Entry], 0, sizeof(struct Map));
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}
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memset(&p->RIOHosts[Host].Name[0], 0, sizeof(p->RIOHosts[Host].Name));
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}
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/*
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** Copy in the new table entries
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*/
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for (Entry = 0; Entry < TOTAL_MAP_ENTRIES; Entry++) {
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rio_dprintk(RIO_DEBUG_TABLE, "RIONewTable: Copy table for Host entry %d\n", Entry);
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MapP = &p->RIOConnectTable[Entry];
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/*
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** Now, if it is an empty slot ignore it!
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*/
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if (MapP->HostUniqueNum == 0)
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continue;
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/*
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** we saved the host number earlier, so grab it back
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*/
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HostP = &p->RIOHosts[MapP->Topology[0].Unit];
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/*
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** If it is a host, then we only need to fill in the name field.
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*/
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if (MapP->ID == 0) {
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rio_dprintk(RIO_DEBUG_TABLE, "Host entry found. Name %s\n", MapP->Name);
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memcpy(HostP->Name, MapP->Name, MAX_NAME_LEN);
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continue;
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}
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/*
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** Its an RTA entry, so fill in the host mapping entries for it
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** and the port mapping entries. Notice that entry zero is for
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** ID one.
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*/
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HostMapP = &HostP->Mapping[MapP->ID - 1];
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if (MapP->Flags & SLOT_IN_USE) {
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rio_dprintk(RIO_DEBUG_TABLE, "Rta entry found. Name %s\n", MapP->Name);
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/*
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** structure assign, then sort out the bits we shouldn't have done
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*/
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*HostMapP = *MapP;
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HostMapP->Flags = SLOT_IN_USE;
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if (MapP->Flags & RTA16_SECOND_SLOT)
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HostMapP->Flags |= RTA16_SECOND_SLOT;
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RIOReMapPorts(p, HostP, HostMapP);
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} else {
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rio_dprintk(RIO_DEBUG_TABLE, "TENTATIVE Rta entry found. Name %s\n", MapP->Name);
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}
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}
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for (Entry = 0; Entry < TOTAL_MAP_ENTRIES; Entry++) {
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p->RIOSavedTable[Entry] = p->RIOConnectTable[Entry];
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}
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for (Host = 0; Host < p->RIONumHosts; Host++) {
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for (SubEnt = 0; SubEnt < LINKS_PER_UNIT; SubEnt++) {
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p->RIOHosts[Host].Topology[SubEnt].Unit = ROUTE_DISCONNECT;
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p->RIOHosts[Host].Topology[SubEnt].Link = NO_LINK;
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}
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for (Entry = 0; Entry < MAX_RUP; Entry++) {
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for (SubEnt = 0; SubEnt < LINKS_PER_UNIT; SubEnt++) {
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p->RIOHosts[Host].Mapping[Entry].Topology[SubEnt].Unit = ROUTE_DISCONNECT;
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p->RIOHosts[Host].Mapping[Entry].Topology[SubEnt].Link = NO_LINK;
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}
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}
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if (!p->RIOHosts[Host].Name[0]) {
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memcpy(p->RIOHosts[Host].Name, "HOST 1", 7);
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p->RIOHosts[Host].Name[5] += Host;
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}
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/*
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** Check that default name assigned is unique.
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*/
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Host1 = Host;
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NameIsUnique = 0;
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while (!NameIsUnique) {
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NameIsUnique = 1;
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for (Host2 = 0; Host2 < p->RIONumHosts; Host2++) {
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if (Host2 == Host)
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continue;
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if (strcmp(p->RIOHosts[Host].Name, p->RIOHosts[Host2].Name)
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== 0) {
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NameIsUnique = 0;
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Host1++;
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if (Host1 >= p->RIONumHosts)
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Host1 = 0;
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p->RIOHosts[Host].Name[5] = '1' + Host1;
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}
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}
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}
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/*
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** Rename host if name already used.
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*/
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if (Host1 != Host) {
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rio_dprintk(RIO_DEBUG_TABLE, "Default name %s already used\n", p->RIOHosts[Host].Name);
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memcpy(p->RIOHosts[Host].Name, "HOST 1", 7);
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p->RIOHosts[Host].Name[5] += Host1;
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}
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rio_dprintk(RIO_DEBUG_TABLE, "Assigning default name %s\n", p->RIOHosts[Host].Name);
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}
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return 0;
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}
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/*
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** User process needs the config table - build it from first
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** principles.
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**
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* FIXME: SMP locking
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*/
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int RIOApel(struct rio_info *p)
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{
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int Host;
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int link;
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int Rup;
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int Next = 0;
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struct Map *MapP;
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struct Host *HostP;
|
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unsigned long flags;
|
|
|
|
rio_dprintk(RIO_DEBUG_TABLE, "Generating a table to return to config.rio\n");
|
|
|
|
memset(&p->RIOConnectTable[0], 0, sizeof(struct Map) * TOTAL_MAP_ENTRIES);
|
|
|
|
for (Host = 0; Host < RIO_HOSTS; Host++) {
|
|
rio_dprintk(RIO_DEBUG_TABLE, "Processing host %d\n", Host);
|
|
HostP = &p->RIOHosts[Host];
|
|
rio_spin_lock_irqsave(&HostP->HostLock, flags);
|
|
|
|
MapP = &p->RIOConnectTable[Next++];
|
|
MapP->HostUniqueNum = HostP->UniqueNum;
|
|
if ((HostP->Flags & RUN_STATE) != RC_RUNNING)
|
|
continue;
|
|
MapP->RtaUniqueNum = 0;
|
|
MapP->ID = 0;
|
|
MapP->Flags = SLOT_IN_USE;
|
|
MapP->SysPort = NO_PORT;
|
|
for (link = 0; link < LINKS_PER_UNIT; link++)
|
|
MapP->Topology[link] = HostP->Topology[link];
|
|
memcpy(MapP->Name, HostP->Name, MAX_NAME_LEN);
|
|
for (Rup = 0; Rup < MAX_RUP; Rup++) {
|
|
if (HostP->Mapping[Rup].Flags & (SLOT_IN_USE | SLOT_TENTATIVE)) {
|
|
p->RIOConnectTable[Next] = HostP->Mapping[Rup];
|
|
if (HostP->Mapping[Rup].Flags & SLOT_IN_USE)
|
|
p->RIOConnectTable[Next].Flags |= SLOT_IN_USE;
|
|
if (HostP->Mapping[Rup].Flags & SLOT_TENTATIVE)
|
|
p->RIOConnectTable[Next].Flags |= SLOT_TENTATIVE;
|
|
if (HostP->Mapping[Rup].Flags & RTA16_SECOND_SLOT)
|
|
p->RIOConnectTable[Next].Flags |= RTA16_SECOND_SLOT;
|
|
Next++;
|
|
}
|
|
}
|
|
rio_spin_unlock_irqrestore(&HostP->HostLock, flags);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
** config.rio has taken a dislike to one of the gross maps entries.
|
|
** if the entry is suitably inactive, then we can gob on it and remove
|
|
** it from the table.
|
|
*/
|
|
int RIODeleteRta(struct rio_info *p, struct Map *MapP)
|
|
{
|
|
int host, entry, port, link;
|
|
int SysPort;
|
|
struct Host *HostP;
|
|
struct Map *HostMapP;
|
|
struct Port *PortP;
|
|
int work_done = 0;
|
|
unsigned long lock_flags, sem_flags;
|
|
|
|
rio_dprintk(RIO_DEBUG_TABLE, "Delete entry on host %x, rta %x\n", MapP->HostUniqueNum, MapP->RtaUniqueNum);
|
|
|
|
for (host = 0; host < p->RIONumHosts; host++) {
|
|
HostP = &p->RIOHosts[host];
|
|
|
|
rio_spin_lock_irqsave(&HostP->HostLock, lock_flags);
|
|
|
|
if ((HostP->Flags & RUN_STATE) != RC_RUNNING) {
|
|
rio_spin_unlock_irqrestore(&HostP->HostLock, lock_flags);
|
|
continue;
|
|
}
|
|
|
|
for (entry = 0; entry < MAX_RUP; entry++) {
|
|
if (MapP->RtaUniqueNum == HostP->Mapping[entry].RtaUniqueNum) {
|
|
HostMapP = &HostP->Mapping[entry];
|
|
rio_dprintk(RIO_DEBUG_TABLE, "Found entry offset %d on host %s\n", entry, HostP->Name);
|
|
|
|
/*
|
|
** Check all four links of the unit are disconnected
|
|
*/
|
|
for (link = 0; link < LINKS_PER_UNIT; link++) {
|
|
if (HostMapP->Topology[link].Unit != ROUTE_DISCONNECT) {
|
|
rio_dprintk(RIO_DEBUG_TABLE, "Entry is in use and cannot be deleted!\n");
|
|
p->RIOError.Error = UNIT_IS_IN_USE;
|
|
rio_spin_unlock_irqrestore(&HostP->HostLock, lock_flags);
|
|
return -EBUSY;
|
|
}
|
|
}
|
|
/*
|
|
** Slot has been allocated, BUT not booted/routed/
|
|
** connected/selected or anything else-ed
|
|
*/
|
|
SysPort = HostMapP->SysPort;
|
|
|
|
if (SysPort != NO_PORT) {
|
|
for (port = SysPort; port < SysPort + PORTS_PER_RTA; port++) {
|
|
PortP = p->RIOPortp[port];
|
|
rio_dprintk(RIO_DEBUG_TABLE, "Unmap port\n");
|
|
|
|
rio_spin_lock_irqsave(&PortP->portSem, sem_flags);
|
|
|
|
PortP->Mapped = 0;
|
|
|
|
if (PortP->State & (RIO_MOPEN | RIO_LOPEN)) {
|
|
|
|
rio_dprintk(RIO_DEBUG_TABLE, "Gob on port\n");
|
|
PortP->TxBufferIn = PortP->TxBufferOut = 0;
|
|
/* What should I do
|
|
wakeup( &PortP->TxBufferIn );
|
|
wakeup( &PortP->TxBufferOut);
|
|
*/
|
|
PortP->InUse = NOT_INUSE;
|
|
/* What should I do
|
|
wakeup( &PortP->InUse );
|
|
signal(PortP->TtyP->t_pgrp,SIGKILL);
|
|
ttyflush(PortP->TtyP,(FREAD|FWRITE));
|
|
*/
|
|
PortP->State |= RIO_CLOSING | RIO_DELETED;
|
|
}
|
|
|
|
/*
|
|
** For the second slot of a 16 port RTA, the
|
|
** driver needs to reset the changes made to
|
|
** the phb to port mappings in RIORouteRup.
|
|
*/
|
|
if (PortP->SecondBlock) {
|
|
u16 dest_unit = HostMapP->ID;
|
|
u16 dest_port = port - SysPort;
|
|
u16 __iomem *TxPktP;
|
|
struct PKT __iomem *Pkt;
|
|
|
|
for (TxPktP = PortP->TxStart; TxPktP <= PortP->TxEnd; TxPktP++) {
|
|
/*
|
|
** *TxPktP is the pointer to the
|
|
** transmit packet on the host card.
|
|
** This needs to be translated into
|
|
** a 32 bit pointer so it can be
|
|
** accessed from the driver.
|
|
*/
|
|
Pkt = (struct PKT __iomem *) RIO_PTR(HostP->Caddr, readw(&*TxPktP));
|
|
rio_dprintk(RIO_DEBUG_TABLE, "Tx packet (%x) destination: Old %x:%x New %x:%x\n", readw(TxPktP), readb(&Pkt->dest_unit), readb(&Pkt->dest_port), dest_unit, dest_port);
|
|
writew(dest_unit, &Pkt->dest_unit);
|
|
writew(dest_port, &Pkt->dest_port);
|
|
}
|
|
rio_dprintk(RIO_DEBUG_TABLE, "Port %d phb destination: Old %x:%x New %x:%x\n", port, readb(&PortP->PhbP->destination) & 0xff, (readb(&PortP->PhbP->destination) >> 8) & 0xff, dest_unit, dest_port);
|
|
writew(dest_unit + (dest_port << 8), &PortP->PhbP->destination);
|
|
}
|
|
rio_spin_unlock_irqrestore(&PortP->portSem, sem_flags);
|
|
}
|
|
}
|
|
rio_dprintk(RIO_DEBUG_TABLE, "Entry nulled.\n");
|
|
memset(HostMapP, 0, sizeof(struct Map));
|
|
work_done++;
|
|
}
|
|
}
|
|
rio_spin_unlock_irqrestore(&HostP->HostLock, lock_flags);
|
|
}
|
|
|
|
/* XXXXX lock me up */
|
|
for (entry = 0; entry < TOTAL_MAP_ENTRIES; entry++) {
|
|
if (p->RIOSavedTable[entry].RtaUniqueNum == MapP->RtaUniqueNum) {
|
|
memset(&p->RIOSavedTable[entry], 0, sizeof(struct Map));
|
|
work_done++;
|
|
}
|
|
if (p->RIOConnectTable[entry].RtaUniqueNum == MapP->RtaUniqueNum) {
|
|
memset(&p->RIOConnectTable[entry], 0, sizeof(struct Map));
|
|
work_done++;
|
|
}
|
|
}
|
|
if (work_done)
|
|
return 0;
|
|
|
|
rio_dprintk(RIO_DEBUG_TABLE, "Couldn't find entry to be deleted\n");
|
|
p->RIOError.Error = COULDNT_FIND_ENTRY;
|
|
return -ENXIO;
|
|
}
|
|
|
|
int RIOAssignRta(struct rio_info *p, struct Map *MapP)
|
|
{
|
|
int host;
|
|
struct Map *HostMapP;
|
|
char *sptr;
|
|
int link;
|
|
|
|
|
|
rio_dprintk(RIO_DEBUG_TABLE, "Assign entry on host %x, rta %x, ID %d, Sysport %d\n", MapP->HostUniqueNum, MapP->RtaUniqueNum, MapP->ID, (int) MapP->SysPort);
|
|
|
|
if ((MapP->ID != (u16) - 1) && ((int) MapP->ID < (int) 1 || (int) MapP->ID > MAX_RUP)) {
|
|
rio_dprintk(RIO_DEBUG_TABLE, "Bad ID in map entry!\n");
|
|
p->RIOError.Error = ID_NUMBER_OUT_OF_RANGE;
|
|
return -EINVAL;
|
|
}
|
|
if (MapP->RtaUniqueNum == 0) {
|
|
rio_dprintk(RIO_DEBUG_TABLE, "Rta Unique number zero!\n");
|
|
p->RIOError.Error = RTA_UNIQUE_NUMBER_ZERO;
|
|
return -EINVAL;
|
|
}
|
|
if ((MapP->SysPort != NO_PORT) && (MapP->SysPort % PORTS_PER_RTA)) {
|
|
rio_dprintk(RIO_DEBUG_TABLE, "Port %d not multiple of %d!\n", (int) MapP->SysPort, PORTS_PER_RTA);
|
|
p->RIOError.Error = TTY_NUMBER_OUT_OF_RANGE;
|
|
return -EINVAL;
|
|
}
|
|
if ((MapP->SysPort != NO_PORT) && (MapP->SysPort >= RIO_PORTS)) {
|
|
rio_dprintk(RIO_DEBUG_TABLE, "Port %d not valid!\n", (int) MapP->SysPort);
|
|
p->RIOError.Error = TTY_NUMBER_OUT_OF_RANGE;
|
|
return -EINVAL;
|
|
}
|
|
|
|
/*
|
|
** Copy the name across to the map entry.
|
|
*/
|
|
MapP->Name[MAX_NAME_LEN - 1] = '\0';
|
|
sptr = MapP->Name;
|
|
while (*sptr) {
|
|
if (*sptr < ' ' || *sptr > '~') {
|
|
rio_dprintk(RIO_DEBUG_TABLE, "Name entry contains non-printing characters!\n");
|
|
p->RIOError.Error = BAD_CHARACTER_IN_NAME;
|
|
return -EINVAL;
|
|
}
|
|
sptr++;
|
|
}
|
|
|
|
for (host = 0; host < p->RIONumHosts; host++) {
|
|
if (MapP->HostUniqueNum == p->RIOHosts[host].UniqueNum) {
|
|
if ((p->RIOHosts[host].Flags & RUN_STATE) != RC_RUNNING) {
|
|
p->RIOError.Error = HOST_NOT_RUNNING;
|
|
return -ENXIO;
|
|
}
|
|
|
|
/*
|
|
** Now we have a host we need to allocate an ID
|
|
** if the entry does not already have one.
|
|
*/
|
|
if (MapP->ID == (u16) - 1) {
|
|
int nNewID;
|
|
|
|
rio_dprintk(RIO_DEBUG_TABLE, "Attempting to get a new ID for rta \"%s\"\n", MapP->Name);
|
|
/*
|
|
** The idea here is to allow RTA's to be assigned
|
|
** before they actually appear on the network.
|
|
** This allows the addition of RTA's without having
|
|
** to plug them in.
|
|
** What we do is:
|
|
** - Find a free ID and allocate it to the RTA.
|
|
** - If this map entry is the second half of a
|
|
** 16 port entry then find the other half and
|
|
** make sure the 2 cross reference each other.
|
|
*/
|
|
if (RIOFindFreeID(p, &p->RIOHosts[host], &nNewID, NULL) != 0) {
|
|
p->RIOError.Error = COULDNT_FIND_ENTRY;
|
|
return -EBUSY;
|
|
}
|
|
MapP->ID = (u16) nNewID + 1;
|
|
rio_dprintk(RIO_DEBUG_TABLE, "Allocated ID %d for this new RTA.\n", MapP->ID);
|
|
HostMapP = &p->RIOHosts[host].Mapping[nNewID];
|
|
HostMapP->RtaUniqueNum = MapP->RtaUniqueNum;
|
|
HostMapP->HostUniqueNum = MapP->HostUniqueNum;
|
|
HostMapP->ID = MapP->ID;
|
|
for (link = 0; link < LINKS_PER_UNIT; link++) {
|
|
HostMapP->Topology[link].Unit = ROUTE_DISCONNECT;
|
|
HostMapP->Topology[link].Link = NO_LINK;
|
|
}
|
|
if (MapP->Flags & RTA16_SECOND_SLOT) {
|
|
int unit;
|
|
|
|
for (unit = 0; unit < MAX_RUP; unit++)
|
|
if (p->RIOHosts[host].Mapping[unit].RtaUniqueNum == MapP->RtaUniqueNum)
|
|
break;
|
|
if (unit == MAX_RUP) {
|
|
p->RIOError.Error = COULDNT_FIND_ENTRY;
|
|
return -EBUSY;
|
|
}
|
|
HostMapP->Flags |= RTA16_SECOND_SLOT;
|
|
HostMapP->ID2 = MapP->ID2 = p->RIOHosts[host].Mapping[unit].ID;
|
|
p->RIOHosts[host].Mapping[unit].ID2 = MapP->ID;
|
|
rio_dprintk(RIO_DEBUG_TABLE, "Cross referenced id %d to ID %d.\n", MapP->ID, p->RIOHosts[host].Mapping[unit].ID);
|
|
}
|
|
}
|
|
|
|
HostMapP = &p->RIOHosts[host].Mapping[MapP->ID - 1];
|
|
|
|
if (HostMapP->Flags & SLOT_IN_USE) {
|
|
rio_dprintk(RIO_DEBUG_TABLE, "Map table slot for ID %d is already in use.\n", MapP->ID);
|
|
p->RIOError.Error = ID_ALREADY_IN_USE;
|
|
return -EBUSY;
|
|
}
|
|
|
|
/*
|
|
** Assign the sys ports and the name, and mark the slot as
|
|
** being in use.
|
|
*/
|
|
HostMapP->SysPort = MapP->SysPort;
|
|
if ((MapP->Flags & RTA16_SECOND_SLOT) == 0)
|
|
memcpy(HostMapP->Name, MapP->Name, MAX_NAME_LEN);
|
|
HostMapP->Flags = SLOT_IN_USE | RTA_BOOTED;
|
|
#ifdef NEED_TO_FIX
|
|
RIO_SV_BROADCAST(p->RIOHosts[host].svFlags[MapP->ID - 1]);
|
|
#endif
|
|
if (MapP->Flags & RTA16_SECOND_SLOT)
|
|
HostMapP->Flags |= RTA16_SECOND_SLOT;
|
|
|
|
RIOReMapPorts(p, &p->RIOHosts[host], HostMapP);
|
|
/*
|
|
** Adjust 2nd block of 8 phbs
|
|
*/
|
|
if (MapP->Flags & RTA16_SECOND_SLOT)
|
|
RIOFixPhbs(p, &p->RIOHosts[host], HostMapP->ID - 1);
|
|
|
|
if (HostMapP->SysPort != NO_PORT) {
|
|
if (HostMapP->SysPort < p->RIOFirstPortsBooted)
|
|
p->RIOFirstPortsBooted = HostMapP->SysPort;
|
|
if (HostMapP->SysPort > p->RIOLastPortsBooted)
|
|
p->RIOLastPortsBooted = HostMapP->SysPort;
|
|
}
|
|
if (MapP->Flags & RTA16_SECOND_SLOT)
|
|
rio_dprintk(RIO_DEBUG_TABLE, "Second map of RTA %s added to configuration\n", p->RIOHosts[host].Mapping[MapP->ID2 - 1].Name);
|
|
else
|
|
rio_dprintk(RIO_DEBUG_TABLE, "RTA %s added to configuration\n", MapP->Name);
|
|
return 0;
|
|
}
|
|
}
|
|
p->RIOError.Error = UNKNOWN_HOST_NUMBER;
|
|
rio_dprintk(RIO_DEBUG_TABLE, "Unknown host %x\n", MapP->HostUniqueNum);
|
|
return -ENXIO;
|
|
}
|
|
|
|
|
|
int RIOReMapPorts(struct rio_info *p, struct Host *HostP, struct Map *HostMapP)
|
|
{
|
|
struct Port *PortP;
|
|
unsigned int SubEnt;
|
|
unsigned int HostPort;
|
|
unsigned int SysPort;
|
|
u16 RtaType;
|
|
unsigned long flags;
|
|
|
|
rio_dprintk(RIO_DEBUG_TABLE, "Mapping sysport %d to id %d\n", (int) HostMapP->SysPort, HostMapP->ID);
|
|
|
|
/*
|
|
** We need to tell the UnixRups which sysport the rup corresponds to
|
|
*/
|
|
HostP->UnixRups[HostMapP->ID - 1].BaseSysPort = HostMapP->SysPort;
|
|
|
|
if (HostMapP->SysPort == NO_PORT)
|
|
return (0);
|
|
|
|
RtaType = GetUnitType(HostMapP->RtaUniqueNum);
|
|
rio_dprintk(RIO_DEBUG_TABLE, "Mapping sysport %d-%d\n", (int) HostMapP->SysPort, (int) HostMapP->SysPort + PORTS_PER_RTA - 1);
|
|
|
|
/*
|
|
** now map each of its eight ports
|
|
*/
|
|
for (SubEnt = 0; SubEnt < PORTS_PER_RTA; SubEnt++) {
|
|
rio_dprintk(RIO_DEBUG_TABLE, "subent = %d, HostMapP->SysPort = %d\n", SubEnt, (int) HostMapP->SysPort);
|
|
SysPort = HostMapP->SysPort + SubEnt; /* portnumber within system */
|
|
/* portnumber on host */
|
|
|
|
HostPort = (HostMapP->ID - 1) * PORTS_PER_RTA + SubEnt;
|
|
|
|
rio_dprintk(RIO_DEBUG_TABLE, "c1 p = %p, p->rioPortp = %p\n", p, p->RIOPortp);
|
|
PortP = p->RIOPortp[SysPort];
|
|
rio_dprintk(RIO_DEBUG_TABLE, "Map port\n");
|
|
|
|
/*
|
|
** Point at all the real neat data structures
|
|
*/
|
|
rio_spin_lock_irqsave(&PortP->portSem, flags);
|
|
PortP->HostP = HostP;
|
|
PortP->Caddr = HostP->Caddr;
|
|
|
|
/*
|
|
** The PhbP cannot be filled in yet
|
|
** unless the host has been booted
|
|
*/
|
|
if ((HostP->Flags & RUN_STATE) == RC_RUNNING) {
|
|
struct PHB __iomem *PhbP = PortP->PhbP = &HostP->PhbP[HostPort];
|
|
PortP->TxAdd = (u16 __iomem *) RIO_PTR(HostP->Caddr, readw(&PhbP->tx_add));
|
|
PortP->TxStart = (u16 __iomem *) RIO_PTR(HostP->Caddr, readw(&PhbP->tx_start));
|
|
PortP->TxEnd = (u16 __iomem *) RIO_PTR(HostP->Caddr, readw(&PhbP->tx_end));
|
|
PortP->RxRemove = (u16 __iomem *) RIO_PTR(HostP->Caddr, readw(&PhbP->rx_remove));
|
|
PortP->RxStart = (u16 __iomem *) RIO_PTR(HostP->Caddr, readw(&PhbP->rx_start));
|
|
PortP->RxEnd = (u16 __iomem *) RIO_PTR(HostP->Caddr, readw(&PhbP->rx_end));
|
|
} else
|
|
PortP->PhbP = NULL;
|
|
|
|
/*
|
|
** port related flags
|
|
*/
|
|
PortP->HostPort = HostPort;
|
|
/*
|
|
** For each part of a 16 port RTA, RupNum is ID - 1.
|
|
*/
|
|
PortP->RupNum = HostMapP->ID - 1;
|
|
if (HostMapP->Flags & RTA16_SECOND_SLOT) {
|
|
PortP->ID2 = HostMapP->ID2 - 1;
|
|
PortP->SecondBlock = 1;
|
|
} else {
|
|
PortP->ID2 = 0;
|
|
PortP->SecondBlock = 0;
|
|
}
|
|
PortP->RtaUniqueNum = HostMapP->RtaUniqueNum;
|
|
|
|
/*
|
|
** If the port was already mapped then thats all we need to do.
|
|
*/
|
|
if (PortP->Mapped) {
|
|
rio_spin_unlock_irqrestore(&PortP->portSem, flags);
|
|
continue;
|
|
} else
|
|
HostMapP->Flags &= ~RTA_NEWBOOT;
|
|
|
|
PortP->State = 0;
|
|
PortP->Config = 0;
|
|
/*
|
|
** Check out the module type - if it is special (read only etc.)
|
|
** then we need to set flags in the PortP->Config.
|
|
** Note: For 16 port RTA, all ports are of the same type.
|
|
*/
|
|
if (RtaType == TYPE_RTA16) {
|
|
PortP->Config |= p->RIOModuleTypes[HostP->UnixRups[HostMapP->ID - 1].ModTypes].Flags[SubEnt % PORTS_PER_MODULE];
|
|
} else {
|
|
if (SubEnt < PORTS_PER_MODULE)
|
|
PortP->Config |= p->RIOModuleTypes[LONYBLE(HostP->UnixRups[HostMapP->ID - 1].ModTypes)].Flags[SubEnt % PORTS_PER_MODULE];
|
|
else
|
|
PortP->Config |= p->RIOModuleTypes[HINYBLE(HostP->UnixRups[HostMapP->ID - 1].ModTypes)].Flags[SubEnt % PORTS_PER_MODULE];
|
|
}
|
|
|
|
/*
|
|
** more port related flags
|
|
*/
|
|
PortP->PortState = 0;
|
|
PortP->ModemLines = 0;
|
|
PortP->ModemState = 0;
|
|
PortP->CookMode = COOK_WELL;
|
|
PortP->ParamSem = 0;
|
|
PortP->FlushCmdBodge = 0;
|
|
PortP->WflushFlag = 0;
|
|
PortP->MagicFlags = 0;
|
|
PortP->Lock = 0;
|
|
PortP->Store = 0;
|
|
PortP->FirstOpen = 1;
|
|
|
|
/*
|
|
** Buffers 'n things
|
|
*/
|
|
PortP->RxDataStart = 0;
|
|
PortP->Cor2Copy = 0;
|
|
PortP->Name = &HostMapP->Name[0];
|
|
PortP->statsGather = 0;
|
|
PortP->txchars = 0;
|
|
PortP->rxchars = 0;
|
|
PortP->opens = 0;
|
|
PortP->closes = 0;
|
|
PortP->ioctls = 0;
|
|
if (PortP->TxRingBuffer)
|
|
memset(PortP->TxRingBuffer, 0, p->RIOBufferSize);
|
|
else if (p->RIOBufferSize) {
|
|
PortP->TxRingBuffer = kzalloc(p->RIOBufferSize, GFP_KERNEL);
|
|
}
|
|
PortP->TxBufferOut = 0;
|
|
PortP->TxBufferIn = 0;
|
|
PortP->Debug = 0;
|
|
/*
|
|
** LastRxTgl stores the state of the rx toggle bit for this
|
|
** port, to be compared with the state of the next pkt received.
|
|
** If the same, we have received the same rx pkt from the RTA
|
|
** twice. Initialise to a value not equal to PHB_RX_TGL or 0.
|
|
*/
|
|
PortP->LastRxTgl = ~(u8) PHB_RX_TGL;
|
|
|
|
/*
|
|
** and mark the port as usable
|
|
*/
|
|
PortP->Mapped = 1;
|
|
rio_spin_unlock_irqrestore(&PortP->portSem, flags);
|
|
}
|
|
if (HostMapP->SysPort < p->RIOFirstPortsMapped)
|
|
p->RIOFirstPortsMapped = HostMapP->SysPort;
|
|
if (HostMapP->SysPort > p->RIOLastPortsMapped)
|
|
p->RIOLastPortsMapped = HostMapP->SysPort;
|
|
|
|
return 0;
|
|
}
|
|
|
|
int RIOChangeName(struct rio_info *p, struct Map *MapP)
|
|
{
|
|
int host;
|
|
struct Map *HostMapP;
|
|
char *sptr;
|
|
|
|
rio_dprintk(RIO_DEBUG_TABLE, "Change name entry on host %x, rta %x, ID %d, Sysport %d\n", MapP->HostUniqueNum, MapP->RtaUniqueNum, MapP->ID, (int) MapP->SysPort);
|
|
|
|
if (MapP->ID > MAX_RUP) {
|
|
rio_dprintk(RIO_DEBUG_TABLE, "Bad ID in map entry!\n");
|
|
p->RIOError.Error = ID_NUMBER_OUT_OF_RANGE;
|
|
return -EINVAL;
|
|
}
|
|
|
|
MapP->Name[MAX_NAME_LEN - 1] = '\0';
|
|
sptr = MapP->Name;
|
|
|
|
while (*sptr) {
|
|
if (*sptr < ' ' || *sptr > '~') {
|
|
rio_dprintk(RIO_DEBUG_TABLE, "Name entry contains non-printing characters!\n");
|
|
p->RIOError.Error = BAD_CHARACTER_IN_NAME;
|
|
return -EINVAL;
|
|
}
|
|
sptr++;
|
|
}
|
|
|
|
for (host = 0; host < p->RIONumHosts; host++) {
|
|
if (MapP->HostUniqueNum == p->RIOHosts[host].UniqueNum) {
|
|
if ((p->RIOHosts[host].Flags & RUN_STATE) != RC_RUNNING) {
|
|
p->RIOError.Error = HOST_NOT_RUNNING;
|
|
return -ENXIO;
|
|
}
|
|
if (MapP->ID == 0) {
|
|
memcpy(p->RIOHosts[host].Name, MapP->Name, MAX_NAME_LEN);
|
|
return 0;
|
|
}
|
|
|
|
HostMapP = &p->RIOHosts[host].Mapping[MapP->ID - 1];
|
|
|
|
if (HostMapP->RtaUniqueNum != MapP->RtaUniqueNum) {
|
|
p->RIOError.Error = RTA_NUMBER_WRONG;
|
|
return -ENXIO;
|
|
}
|
|
memcpy(HostMapP->Name, MapP->Name, MAX_NAME_LEN);
|
|
return 0;
|
|
}
|
|
}
|
|
p->RIOError.Error = UNKNOWN_HOST_NUMBER;
|
|
rio_dprintk(RIO_DEBUG_TABLE, "Unknown host %x\n", MapP->HostUniqueNum);
|
|
return -ENXIO;
|
|
}
|