~ubuntu-branches/debian/wheezy/linux-2.6/wheezy : revision 47

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/*

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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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*

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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 : rioboot.c

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** SID : 1.3

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** Last Modified : 11/6/98 10:33:36

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** Retrieved : 11/6/98 10:33:48

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**

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** ident @(#)rioboot.c 1.3

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**

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** -----------------------------------------------------------------------------

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*/

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#include <linux/module.h>

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#include <linux/slab.h>

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#include <linux/termios.h>

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#include <linux/serial.h>

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#include <linux/vmalloc.h>

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#include <linux/generic_serial.h>

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#include <linux/errno.h>

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#include <linux/interrupt.h>

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#include <linux/delay.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/uaccess.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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static int RIOBootComplete(struct rio_info *p, struct Host *HostP, unsigned int Rup, struct PktCmd __iomem *PktCmdP);

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static const unsigned char RIOAtVec2Ctrl[] = {

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/* 0 */ INTERRUPT_DISABLE,

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/* 1 */ INTERRUPT_DISABLE,

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/* 2 */ INTERRUPT_DISABLE,

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/* 3 */ INTERRUPT_DISABLE,

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/* 4 */ INTERRUPT_DISABLE,

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/* 5 */ INTERRUPT_DISABLE,

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/* 6 */ INTERRUPT_DISABLE,

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/* 7 */ INTERRUPT_DISABLE,

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/* 8 */ INTERRUPT_DISABLE,

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/* 9 */ IRQ_9 | INTERRUPT_ENABLE,

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/* 10 */ INTERRUPT_DISABLE,

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/* 11 */ IRQ_11 | INTERRUPT_ENABLE,

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/* 12 */ IRQ_12 | INTERRUPT_ENABLE,

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/* 13 */ INTERRUPT_DISABLE,

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/* 14 */ INTERRUPT_DISABLE,

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/* 15 */ IRQ_15 | INTERRUPT_ENABLE

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};

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/**

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* RIOBootCodeRTA - Load RTA boot code

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* @p: RIO to load

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* @rbp: Download descriptor

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*

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* Called when the user process initiates booting of the card firmware.

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* Lads the firmware

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*/

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int RIOBootCodeRTA(struct rio_info *p, struct DownLoad * rbp)

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{

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int offset;

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func_enter();

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rio_dprintk(RIO_DEBUG_BOOT, "Data at user address %p\n", rbp->DataP);

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/*

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** Check that we have set asside enough memory for this

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*/

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if (rbp->Count > SIXTY_FOUR_K) {

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rio_dprintk(RIO_DEBUG_BOOT, "RTA Boot Code Too Large!\n");

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p->RIOError.Error = HOST_FILE_TOO_LARGE;

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func_exit();

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return -ENOMEM;

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}

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if (p->RIOBooting) {

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rio_dprintk(RIO_DEBUG_BOOT, "RTA Boot Code : BUSY BUSY BUSY!\n");

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p->RIOError.Error = BOOT_IN_PROGRESS;

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func_exit();

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return -EBUSY;

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}

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/*

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** The data we load in must end on a (RTA_BOOT_DATA_SIZE) byte boundary,

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** so calculate how far we have to move the data up the buffer

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** to achieve this.

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*/

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offset = (RTA_BOOT_DATA_SIZE - (rbp->Count % RTA_BOOT_DATA_SIZE)) % RTA_BOOT_DATA_SIZE;

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/*

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** Be clean, and clear the 'unused' portion of the boot buffer,

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** because it will (eventually) be part of the Rta run time environment

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** and so should be zeroed.

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*/

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memset(p->RIOBootPackets, 0, offset);

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/*

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** Copy the data from user space into the array

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*/

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if (copy_from_user(((u8 *)p->RIOBootPackets) + offset, rbp->DataP, rbp->Count)) {

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rio_dprintk(RIO_DEBUG_BOOT, "Bad data copy from user space\n");

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p->RIOError.Error = COPYIN_FAILED;

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func_exit();

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return -EFAULT;

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}

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/*

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** Make sure that our copy of the size includes that offset we discussed

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** earlier.

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*/

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p->RIONumBootPkts = (rbp->Count + offset) / RTA_BOOT_DATA_SIZE;

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p->RIOBootCount = rbp->Count;

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func_exit();

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return 0;

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}

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/**

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* rio_start_card_running - host card start

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* @HostP: The RIO to kick off

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*

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* Start a RIO processor unit running. Encapsulates the knowledge

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* of the card type.

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*/

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void rio_start_card_running(struct Host *HostP)

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{

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switch (HostP->Type) {

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case RIO_AT:

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rio_dprintk(RIO_DEBUG_BOOT, "Start ISA card running\n");

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writeb(BOOT_FROM_RAM | EXTERNAL_BUS_ON | HostP->Mode | RIOAtVec2Ctrl[HostP->Ivec & 0xF], &HostP->Control);

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break;

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case RIO_PCI:

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/*

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** PCI is much the same as MCA. Everything is once again memory

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** mapped, so we are writing to memory registers instead of io

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** ports.

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*/

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rio_dprintk(RIO_DEBUG_BOOT, "Start PCI card running\n");

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writeb(PCITpBootFromRam | PCITpBusEnable | HostP->Mode, &HostP->Control);

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break;

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default:

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rio_dprintk(RIO_DEBUG_BOOT, "Unknown host type %d\n", HostP->Type);

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break;

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}

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return;

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}

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/*

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** Load in the host boot code - load it directly onto all halted hosts

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** of the correct type.

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**

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** Put your rubber pants on before messing with this code - even the magic

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** numbers have trouble understanding what they are doing here.

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*/

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int RIOBootCodeHOST(struct rio_info *p, struct DownLoad *rbp)

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{

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struct Host *HostP;

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u8 __iomem *Cad;

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PARM_MAP __iomem *ParmMapP;

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int RupN;

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int PortN;

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unsigned int host;

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u8 __iomem *StartP;

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u8 __iomem *DestP;

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int wait_count;

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u16 OldParmMap;

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u16 offset; /* It is very important that this is a u16 */

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u8 *DownCode = NULL;

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unsigned long flags;

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HostP = NULL; /* Assure the compiler we've initialized it */

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/* Walk the hosts */

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for (host = 0; host < p->RIONumHosts; host++) {

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rio_dprintk(RIO_DEBUG_BOOT, "Attempt to boot host %d\n", host);

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HostP = &p->RIOHosts[host];

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rio_dprintk(RIO_DEBUG_BOOT, "Host Type = 0x%x, Mode = 0x%x, IVec = 0x%x\n", HostP->Type, HostP->Mode, HostP->Ivec);

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/* Don't boot hosts already running */

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if ((HostP->Flags & RUN_STATE) != RC_WAITING) {

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rio_dprintk(RIO_DEBUG_BOOT, "%s %d already running\n", "Host", host);

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continue;

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}

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/*

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** Grab a pointer to the card (ioremapped)

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*/

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Cad = HostP->Caddr;

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/*

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** We are going to (try) and load in rbp->Count bytes.

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** The last byte will reside at p->RIOConf.HostLoadBase-1;

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** Therefore, we need to start copying at address

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** (caddr+p->RIOConf.HostLoadBase-rbp->Count)

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*/

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StartP = &Cad[p->RIOConf.HostLoadBase - rbp->Count];

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rio_dprintk(RIO_DEBUG_BOOT, "kernel virtual address for host is %p\n", Cad);

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rio_dprintk(RIO_DEBUG_BOOT, "kernel virtual address for download is %p\n", StartP);

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rio_dprintk(RIO_DEBUG_BOOT, "host loadbase is 0x%x\n", p->RIOConf.HostLoadBase);

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rio_dprintk(RIO_DEBUG_BOOT, "size of download is 0x%x\n", rbp->Count);

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/* Make sure it fits */

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if (p->RIOConf.HostLoadBase < rbp->Count) {

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rio_dprintk(RIO_DEBUG_BOOT, "Bin too large\n");

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p->RIOError.Error = HOST_FILE_TOO_LARGE;

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func_exit();

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return -EFBIG;

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}

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/*

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** Ensure that the host really is stopped.

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** Disable it's external bus & twang its reset line.

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*/

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RIOHostReset(HostP->Type, HostP->CardP, HostP->Slot);

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/*

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** Copy the data directly from user space to the SRAM.

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** This ain't going to be none too clever if the download

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** code is bigger than this segment.

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*/

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rio_dprintk(RIO_DEBUG_BOOT, "Copy in code\n");

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/* Buffer to local memory as we want to use I/O space and

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some cards only do 8 or 16 bit I/O */

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DownCode = vmalloc(rbp->Count);

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if (!DownCode) {

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p->RIOError.Error = NOT_ENOUGH_CORE_FOR_PCI_COPY;

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func_exit();

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return -ENOMEM;

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}

282

if (copy_from_user(DownCode, rbp->DataP, rbp->Count)) {

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kfree(DownCode);

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p->RIOError.Error = COPYIN_FAILED;

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func_exit();

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return -EFAULT;

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}

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HostP->Copy(DownCode, StartP, rbp->Count);

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vfree(DownCode);

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rio_dprintk(RIO_DEBUG_BOOT, "Copy completed\n");

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/*

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** S T O P !

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**

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** Upto this point the code has been fairly rational, and possibly

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** even straight forward. What follows is a pile of crud that will

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** magically turn into six bytes of transputer assembler. Normally

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** you would expect an array or something, but, being me, I have

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** chosen [been told] to use a technique whereby the startup code

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** will be correct if we change the loadbase for the code. Which

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** brings us onto another issue - the loadbase is the *end* of the

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** code, not the start.

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**

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** If I were you I wouldn't start from here.

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*/

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308

/*

309

** We now need to insert a short boot section into

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** the memory at the end of Sram2. This is normally (de)composed

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** of the last eight bytes of the download code. The

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** download has been assembled/compiled to expect to be

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** loaded from 0x7FFF downwards. We have loaded it

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** at some other address. The startup code goes into the small

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** ram window at Sram2, in the last 8 bytes, which are really

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** at addresses 0x7FF8-0x7FFF.

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**

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** If the loadbase is, say, 0x7C00, then we need to branch to

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** address 0x7BFE to run the host.bin startup code. We assemble

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** this jump manually.

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**

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** The two byte sequence 60 08 is loaded into memory at address

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** 0x7FFE,F. This is a local branch to location 0x7FF8 (60 is nfix 0,

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** which adds '0' to the .O register, complements .O, and then shifts

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** it left by 4 bit positions, 08 is a jump .O+8 instruction. This will

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** add 8 to .O (which was 0xFFF0), and will branch RELATIVE to the new

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** location. Now, the branch starts from the value of .PC (or .IP or

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** whatever the bloody register is called on this chip), and the .PC

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** will be pointing to the location AFTER the branch, in this case

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** .PC == 0x8000, so the branch will be to 0x8000+0xFFF8 = 0x7FF8.

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**

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** A long branch is coded at 0x7FF8. This consists of loading a four

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** byte offset into .O using nfix (as above) and pfix operators. The

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** pfix operates in exactly the same way as the nfix operator, but

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** without the complement operation. The offset, of course, must be

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** relative to the address of the byte AFTER the branch instruction,

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** which will be (urm) 0x7FFC, so, our final destination of the branch

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** (loadbase-2), has to be reached from here. Imagine that the loadbase

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** is 0x7C00 (which it is), then we will need to branch to 0x7BFE (which

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** is the first byte of the initial two byte short local branch of the

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** download code).

342

**

343

** To code a jump from 0x7FFC (which is where the branch will start

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** from) to 0x7BFE, we will need to branch 0xFC02 bytes (0x7FFC+0xFC02)=

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** 0x7BFE.

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** This will be coded as four bytes:

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** 60 2C 20 02

348

** being nfix .O+0

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** pfix .O+C

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** pfix .O+0

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** jump .O+2

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**

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** The nfix operator is used, so that the startup code will be

354

** compatible with the whole Tp family. (lies, damn lies, it'll never

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** work in a month of Sundays).

356

**

357

** The nfix nyble is the 1s complement of the nyble value you

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** want to load - in this case we wanted 'F' so we nfix loaded '0'.

359

*/

360

361

362

/*

363

** Dest points to the top 8 bytes of Sram2. The Tp jumps

364

** to 0x7FFE at reset time, and starts executing. This is

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** a short branch to 0x7FF8, where a long branch is coded.

366

*/

367

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DestP = &Cad[0x7FF8]; /* <<<---- READ THE ABOVE COMMENTS */

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#define NFIX(N) (0x60 | (N)) /* .O = (~(.O + N))<<4 */

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#define PFIX(N) (0x20 | (N)) /* .O = (.O + N)<<4 */

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#define JUMP(N) (0x00 | (N)) /* .PC = .PC + .O */

373

374

/*

375

** 0x7FFC is the address of the location following the last byte of

376

** the four byte jump instruction.

377

** READ THE ABOVE COMMENTS

378

**

379

** offset is (TO-FROM) % MEMSIZE, but with compound buggering about.

380

** Memsize is 64K for this range of Tp, so offset is a short (unsigned,

381

** cos I don't understand 2's complement).

382

*/

383

offset = (p->RIOConf.HostLoadBase - 2) - 0x7FFC;

384

385

writeb(NFIX(((unsigned short) (~offset) >> (unsigned short) 12) & 0xF), DestP);

386

writeb(PFIX((offset >> 8) & 0xF), DestP + 1);

387

writeb(PFIX((offset >> 4) & 0xF), DestP + 2);

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writeb(JUMP(offset & 0xF), DestP + 3);

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390

writeb(NFIX(0), DestP + 6);

391

writeb(JUMP(8), DestP + 7);

392

393

rio_dprintk(RIO_DEBUG_BOOT, "host loadbase is 0x%x\n", p->RIOConf.HostLoadBase);

394

rio_dprintk(RIO_DEBUG_BOOT, "startup offset is 0x%x\n", offset);

395

396

/*

397

** Flag what is going on

398

*/

399

HostP->Flags &= ~RUN_STATE;

400

HostP->Flags |= RC_STARTUP;

401

402

/*

403

** Grab a copy of the current ParmMap pointer, so we

404

** can tell when it has changed.

405

*/

406

OldParmMap = readw(&HostP->__ParmMapR);

407

408

rio_dprintk(RIO_DEBUG_BOOT, "Original parmmap is 0x%x\n", OldParmMap);

409

410

/*

411

** And start it running (I hope).

412

** As there is nothing dodgy or obscure about the

413

** above code, this is guaranteed to work every time.

414

*/

415

rio_dprintk(RIO_DEBUG_BOOT, "Host Type = 0x%x, Mode = 0x%x, IVec = 0x%x\n", HostP->Type, HostP->Mode, HostP->Ivec);

416

417

rio_start_card_running(HostP);

418

419

rio_dprintk(RIO_DEBUG_BOOT, "Set control port\n");

420

421

/*

422

** Now, wait for upto five seconds for the Tp to setup the parmmap

423

** pointer:

424

*/

425

for (wait_count = 0; (wait_count < p->RIOConf.StartupTime) && (readw(&HostP->__ParmMapR) == OldParmMap); wait_count++) {

426

rio_dprintk(RIO_DEBUG_BOOT, "Checkout %d, 0x%x\n", wait_count, readw(&HostP->__ParmMapR));

427

mdelay(100);

428

429

}

430

431

/*

432

** If the parmmap pointer is unchanged, then the host code

433

** has crashed & burned in a really spectacular way

434

*/

435

if (readw(&HostP->__ParmMapR) == OldParmMap) {

436

rio_dprintk(RIO_DEBUG_BOOT, "parmmap 0x%x\n", readw(&HostP->__ParmMapR));

437

rio_dprintk(RIO_DEBUG_BOOT, "RIO Mesg Run Fail\n");

438

HostP->Flags &= ~RUN_STATE;

439

HostP->Flags |= RC_STUFFED;

440

RIOHostReset( HostP->Type, HostP->CardP, HostP->Slot );

441

continue;

442

}

443

444

rio_dprintk(RIO_DEBUG_BOOT, "Running 0x%x\n", readw(&HostP->__ParmMapR));

445

446

/*

447

** Well, the board thought it was OK, and setup its parmmap

448

** pointer. For the time being, we will pretend that this

449

** board is running, and check out what the error flag says.

450

*/

451

452

/*

453

** Grab a 32 bit pointer to the parmmap structure

454

*/

455

ParmMapP = (PARM_MAP __iomem *) RIO_PTR(Cad, readw(&HostP->__ParmMapR));

456

rio_dprintk(RIO_DEBUG_BOOT, "ParmMapP : %p\n", ParmMapP);

457

ParmMapP = (PARM_MAP __iomem *)(Cad + readw(&HostP->__ParmMapR));

458

rio_dprintk(RIO_DEBUG_BOOT, "ParmMapP : %p\n", ParmMapP);

459

460

/*

461

** The links entry should be 0xFFFF; we set it up

462

** with a mask to say how many PHBs to use, and

463

** which links to use.

464

*/

465

if (readw(&ParmMapP->links) != 0xFFFF) {

466

rio_dprintk(RIO_DEBUG_BOOT, "RIO Mesg Run Fail %s\n", HostP->Name);

467

rio_dprintk(RIO_DEBUG_BOOT, "Links = 0x%x\n", readw(&ParmMapP->links));

468

HostP->Flags &= ~RUN_STATE;

469

HostP->Flags |= RC_STUFFED;

470

RIOHostReset( HostP->Type, HostP->CardP, HostP->Slot );

471

continue;

472

}

473

474

writew(RIO_LINK_ENABLE, &ParmMapP->links);

475

476

/*

477

** now wait for the card to set all the parmmap->XXX stuff

478

** this is a wait of upto two seconds....

479

*/

480

rio_dprintk(RIO_DEBUG_BOOT, "Looking for init_done - %d ticks\n", p->RIOConf.StartupTime);

481

HostP->timeout_id = 0;

482

for (wait_count = 0; (wait_count < p->RIOConf.StartupTime) && !readw(&ParmMapP->init_done); wait_count++) {

483

rio_dprintk(RIO_DEBUG_BOOT, "Waiting for init_done\n");

484

mdelay(100);

485

}

486

rio_dprintk(RIO_DEBUG_BOOT, "OK! init_done!\n");

487

488

if (readw(&ParmMapP->error) != E_NO_ERROR || !readw(&ParmMapP->init_done)) {

489

rio_dprintk(RIO_DEBUG_BOOT, "RIO Mesg Run Fail %s\n", HostP->Name);

490

rio_dprintk(RIO_DEBUG_BOOT, "Timedout waiting for init_done\n");

491

HostP->Flags &= ~RUN_STATE;

492

HostP->Flags |= RC_STUFFED;

493

RIOHostReset( HostP->Type, HostP->CardP, HostP->Slot );

494

continue;

495

}

496

497

rio_dprintk(RIO_DEBUG_BOOT, "Got init_done\n");

498

499

/*

500

** It runs! It runs!

501

*/

502

rio_dprintk(RIO_DEBUG_BOOT, "Host ID %x Running\n", HostP->UniqueNum);

503

504

/*

505

** set the time period between interrupts.

506

*/

507

writew(p->RIOConf.Timer, &ParmMapP->timer);

508

509

/*

510

** Translate all the 16 bit pointers in the __ParmMapR into

511

** 32 bit pointers for the driver in ioremap space.

512

*/

513

HostP->ParmMapP = ParmMapP;

514

HostP->PhbP = (struct PHB __iomem *) RIO_PTR(Cad, readw(&ParmMapP->phb_ptr));

515

HostP->RupP = (struct RUP __iomem *) RIO_PTR(Cad, readw(&ParmMapP->rups));

516

HostP->PhbNumP = (unsigned short __iomem *) RIO_PTR(Cad, readw(&ParmMapP->phb_num_ptr));

517

HostP->LinkStrP = (struct LPB __iomem *) RIO_PTR(Cad, readw(&ParmMapP->link_str_ptr));

518

519

/*

520

** point the UnixRups at the real Rups

521

*/

522

for (RupN = 0; RupN < MAX_RUP; RupN++) {

523

HostP->UnixRups[RupN].RupP = &HostP->RupP[RupN];

524

HostP->UnixRups[RupN].Id = RupN + 1;

525

HostP->UnixRups[RupN].BaseSysPort = NO_PORT;

526

spin_lock_init(&HostP->UnixRups[RupN].RupLock);

527

}

528

529

for (RupN = 0; RupN < LINKS_PER_UNIT; RupN++) {

530

HostP->UnixRups[RupN + MAX_RUP].RupP = &HostP->LinkStrP[RupN].rup;

531

HostP->UnixRups[RupN + MAX_RUP].Id = 0;

532

HostP->UnixRups[RupN + MAX_RUP].BaseSysPort = NO_PORT;

533

spin_lock_init(&HostP->UnixRups[RupN + MAX_RUP].RupLock);

534

}

535

536

/*

537

** point the PortP->Phbs at the real Phbs

538

*/

539

for (PortN = p->RIOFirstPortsMapped; PortN < p->RIOLastPortsMapped + PORTS_PER_RTA; PortN++) {

540

if (p->RIOPortp[PortN]->HostP == HostP) {

541

struct Port *PortP = p->RIOPortp[PortN];

542

struct PHB __iomem *PhbP;

543

/* int oldspl; */

544

545

if (!PortP->Mapped)

546

continue;

547

548

PhbP = &HostP->PhbP[PortP->HostPort];

549

rio_spin_lock_irqsave(&PortP->portSem, flags);

550

551

PortP->PhbP = PhbP;

552

553

PortP->TxAdd = (u16 __iomem *) RIO_PTR(Cad, readw(&PhbP->tx_add));

554

PortP->TxStart = (u16 __iomem *) RIO_PTR(Cad, readw(&PhbP->tx_start));

555

PortP->TxEnd = (u16 __iomem *) RIO_PTR(Cad, readw(&PhbP->tx_end));

556

PortP->RxRemove = (u16 __iomem *) RIO_PTR(Cad, readw(&PhbP->rx_remove));

557

PortP->RxStart = (u16 __iomem *) RIO_PTR(Cad, readw(&PhbP->rx_start));

558

PortP->RxEnd = (u16 __iomem *) RIO_PTR(Cad, readw(&PhbP->rx_end));

559

560

rio_spin_unlock_irqrestore(&PortP->portSem, flags);

561

/*

562

** point the UnixRup at the base SysPort

563

*/

564

if (!(PortN % PORTS_PER_RTA))

565

HostP->UnixRups[PortP->RupNum].BaseSysPort = PortN;

566

}

567

}

568

569

rio_dprintk(RIO_DEBUG_BOOT, "Set the card running... \n");

570

/*

571

** last thing - show the world that everything is in place

572

*/

573

HostP->Flags &= ~RUN_STATE;

574

HostP->Flags |= RC_RUNNING;

575

}

576

/*

577

** MPX always uses a poller. This is actually patched into the system

578

** configuration and called directly from each clock tick.

579

**

580

*/

581

p->RIOPolling = 1;

582

583

p->RIOSystemUp++;

584

585

rio_dprintk(RIO_DEBUG_BOOT, "Done everything %x\n", HostP->Ivec);

586

func_exit();

587

return 0;

588

}

589

590

591

592

/**

593

* RIOBootRup - Boot an RTA

594

* @p: rio we are working with

595

* @Rup: Rup number

596

* @HostP: host object

597

* @PacketP: packet to use

598

*

599

* If we have successfully processed this boot, then

600

* return 1. If we havent, then return 0.

601

*/

602

603

int RIOBootRup(struct rio_info *p, unsigned int Rup, struct Host *HostP, struct PKT __iomem *PacketP)

604

{

605

struct PktCmd __iomem *PktCmdP = (struct PktCmd __iomem *) PacketP->data;

606

struct PktCmd_M *PktReplyP;

607

struct CmdBlk *CmdBlkP;

608

unsigned int sequence;

609

610

/*

611

** If we haven't been told what to boot, we can't boot it.

612

*/

613

if (p->RIONumBootPkts == 0) {

614

rio_dprintk(RIO_DEBUG_BOOT, "No RTA code to download yet\n");

615

return 0;

616

}

617

618

/*

619

** Special case of boot completed - if we get one of these then we

620

** don't need a command block. For all other cases we do, so handle

621

** this first and then get a command block, then handle every other

622

** case, relinquishing the command block if disaster strikes!

623

*/

624

if ((readb(&PacketP->len) & PKT_CMD_BIT) && (readb(&PktCmdP->Command) == BOOT_COMPLETED))

625

return RIOBootComplete(p, HostP, Rup, PktCmdP);

626

627

/*

628

** Try to allocate a command block. This is in kernel space

629

*/

630

if (!(CmdBlkP = RIOGetCmdBlk())) {

631

rio_dprintk(RIO_DEBUG_BOOT, "No command blocks to boot RTA! come back later.\n");

632

return 0;

633

}

634

635

/*

636

** Fill in the default info on the command block

637

*/

638

CmdBlkP->Packet.dest_unit = Rup < (unsigned short) MAX_RUP ? Rup : 0;

639

CmdBlkP->Packet.dest_port = BOOT_RUP;

640

CmdBlkP->Packet.src_unit = 0;

641

CmdBlkP->Packet.src_port = BOOT_RUP;

642

643

CmdBlkP->PreFuncP = CmdBlkP->PostFuncP = NULL;

644

PktReplyP = (struct PktCmd_M *) CmdBlkP->Packet.data;

645

646

/*

647

** process COMMANDS on the boot rup!

648

*/

649

if (readb(&PacketP->len) & PKT_CMD_BIT) {

650

/*

651

** We only expect one type of command - a BOOT_REQUEST!

652

*/

653

if (readb(&PktCmdP->Command) != BOOT_REQUEST) {

654

rio_dprintk(RIO_DEBUG_BOOT, "Unexpected command %d on BOOT RUP %d of host %Zd\n", readb(&PktCmdP->Command), Rup, HostP - p->RIOHosts);

655

RIOFreeCmdBlk(CmdBlkP);

656

return 1;

657

}

658

659

/*

660

** Build a Boot Sequence command block

661

**

662

** We no longer need to use "Boot Mode", we'll always allow

663

** boot requests - the boot will not complete if the device

664

** appears in the bindings table.

665

**

666

** We'll just (always) set the command field in packet reply

667

** to allow an attempted boot sequence :

668

*/

669

PktReplyP->Command = BOOT_SEQUENCE;

670

671

PktReplyP->BootSequence.NumPackets = p->RIONumBootPkts;

672

PktReplyP->BootSequence.LoadBase = p->RIOConf.RtaLoadBase;

673

PktReplyP->BootSequence.CodeSize = p->RIOBootCount;

674

675

CmdBlkP->Packet.len = BOOT_SEQUENCE_LEN | PKT_CMD_BIT;

676

677

memcpy((void *) &CmdBlkP->Packet.data[BOOT_SEQUENCE_LEN], "BOOT", 4);

678

679

rio_dprintk(RIO_DEBUG_BOOT, "Boot RTA on Host %Zd Rup %d - %d (0x%x) packets to 0x%x\n", HostP - p->RIOHosts, Rup, p->RIONumBootPkts, p->RIONumBootPkts, p->RIOConf.RtaLoadBase);

680

681

/*

682

** If this host is in slave mode, send the RTA an invalid boot

683

** sequence command block to force it to kill the boot. We wait

684

** for half a second before sending this packet to prevent the RTA

685

** attempting to boot too often. The master host should then grab

686

** the RTA and make it its own.

687

*/

688

p->RIOBooting++;

689

RIOQueueCmdBlk(HostP, Rup, CmdBlkP);

690

return 1;

691

}

692

693

/*

694

** It is a request for boot data.

695

*/

696

sequence = readw(&PktCmdP->Sequence);

697

698

rio_dprintk(RIO_DEBUG_BOOT, "Boot block %d on Host %Zd Rup%d\n", sequence, HostP - p->RIOHosts, Rup);

699

700

if (sequence >= p->RIONumBootPkts) {

701

rio_dprintk(RIO_DEBUG_BOOT, "Got a request for packet %d, max is %d\n", sequence, p->RIONumBootPkts);

702

}

703

704

PktReplyP->Sequence = sequence;

705

memcpy(PktReplyP->BootData, p->RIOBootPackets[p->RIONumBootPkts - sequence - 1], RTA_BOOT_DATA_SIZE);

706

CmdBlkP->Packet.len = PKT_MAX_DATA_LEN;

707

RIOQueueCmdBlk(HostP, Rup, CmdBlkP);

708

return 1;

709

}

710

711

/**

712

* RIOBootComplete - RTA boot is done

713

* @p: RIO we are working with

714

* @HostP: Host structure

715

* @Rup: RUP being used

716

* @PktCmdP: Packet command that was used

717

*

718

* This function is called when an RTA been booted.

719

* If booted by a host, HostP->HostUniqueNum is the booting host.

720

* If booted by an RTA, HostP->Mapping[Rup].RtaUniqueNum is the booting RTA.

721

* RtaUniq is the booted RTA.

722

*/

723

724

static int RIOBootComplete(struct rio_info *p, struct Host *HostP, unsigned int Rup, struct PktCmd __iomem *PktCmdP)

725

{

726

struct Map *MapP = NULL;

727

struct Map *MapP2 = NULL;

728

int Flag;

729

int found;

730

int host, rta;

731

int EmptySlot = -1;

732

int entry, entry2;

733

char *MyType, *MyName;

734

unsigned int MyLink;

735

unsigned short RtaType;

736

u32 RtaUniq = (readb(&PktCmdP->UniqNum[0])) + (readb(&PktCmdP->UniqNum[1]) << 8) + (readb(&PktCmdP->UniqNum[2]) << 16) + (readb(&PktCmdP->UniqNum[3]) << 24);

737

738

p->RIOBooting = 0;

739

740

rio_dprintk(RIO_DEBUG_BOOT, "RTA Boot completed - BootInProgress now %d\n", p->RIOBooting);

741

742

/*

743

** Determine type of unit (16/8 port RTA).

744

*/

745

746

RtaType = GetUnitType(RtaUniq);

747

if (Rup >= (unsigned short) MAX_RUP)

748

rio_dprintk(RIO_DEBUG_BOOT, "RIO: Host %s has booted an RTA(%d) on link %c\n", HostP->Name, 8 * RtaType, readb(&PktCmdP->LinkNum) + 'A');

749

else

750

rio_dprintk(RIO_DEBUG_BOOT, "RIO: RTA %s has booted an RTA(%d) on link %c\n", HostP->Mapping[Rup].Name, 8 * RtaType, readb(&PktCmdP->LinkNum) + 'A');

751

752

rio_dprintk(RIO_DEBUG_BOOT, "UniqNum is 0x%x\n", RtaUniq);

753

754

if (RtaUniq == 0x00000000 || RtaUniq == 0xffffffff) {

755

rio_dprintk(RIO_DEBUG_BOOT, "Illegal RTA Uniq Number\n");

756

return 1;

757

}

758

759

/*

760

** If this RTA has just booted an RTA which doesn't belong to this

761

** system, or the system is in slave mode, do not attempt to create

762

** a new table entry for it.

763

*/

764

765

if (!RIOBootOk(p, HostP, RtaUniq)) {

766

MyLink = readb(&PktCmdP->LinkNum);

767

if (Rup < (unsigned short) MAX_RUP) {

768

/*

769

** RtaUniq was clone booted (by this RTA). Instruct this RTA

770

** to hold off further attempts to boot on this link for 30

771

** seconds.

772

*/

773

if (RIOSuspendBootRta(HostP, HostP->Mapping[Rup].ID, MyLink)) {

774

rio_dprintk(RIO_DEBUG_BOOT, "RTA failed to suspend booting on link %c\n", 'A' + MyLink);

775

}

776

} else

777

/*

778

** RtaUniq was booted by this host. Set the booting link

779

** to hold off for 30 seconds to give another unit a

780

** chance to boot it.

781

*/

782

writew(30, &HostP->LinkStrP[MyLink].WaitNoBoot);

783

rio_dprintk(RIO_DEBUG_BOOT, "RTA %x not owned - suspend booting down link %c on unit %x\n", RtaUniq, 'A' + MyLink, HostP->Mapping[Rup].RtaUniqueNum);

784

return 1;

785

}

786

787

/*

788

** Check for a SLOT_IN_USE entry for this RTA attached to the

789

** current host card in the driver table.

790

**

791

** If it exists, make a note that we have booted it. Other parts of

792

** the driver are interested in this information at a later date,

793

** in particular when the booting RTA asks for an ID for this unit,

794

** we must have set the BOOTED flag, and the NEWBOOT flag is used

795

** to force an open on any ports that where previously open on this

796

** unit.

797

*/

798

for (entry = 0; entry < MAX_RUP; entry++) {

799

unsigned int sysport;

800

801

if ((HostP->Mapping[entry].Flags & SLOT_IN_USE) && (HostP->Mapping[entry].RtaUniqueNum == RtaUniq)) {

802

HostP->Mapping[entry].Flags |= RTA_BOOTED | RTA_NEWBOOT;

803

if ((sysport = HostP->Mapping[entry].SysPort) != NO_PORT) {

804

if (sysport < p->RIOFirstPortsBooted)

805

p->RIOFirstPortsBooted = sysport;

806

if (sysport > p->RIOLastPortsBooted)

807

p->RIOLastPortsBooted = sysport;

808

/*

809

** For a 16 port RTA, check the second bank of 8 ports

810

*/

811

if (RtaType == TYPE_RTA16) {

812

entry2 = HostP->Mapping[entry].ID2 - 1;

813

HostP->Mapping[entry2].Flags |= RTA_BOOTED | RTA_NEWBOOT;

814

sysport = HostP->Mapping[entry2].SysPort;

815

if (sysport < p->RIOFirstPortsBooted)

816

p->RIOFirstPortsBooted = sysport;

817

if (sysport > p->RIOLastPortsBooted)

818

p->RIOLastPortsBooted = sysport;

819

}

820

}

821

if (RtaType == TYPE_RTA16)

822

rio_dprintk(RIO_DEBUG_BOOT, "RTA will be given IDs %d+%d\n", entry + 1, entry2 + 1);

823

else

824

rio_dprintk(RIO_DEBUG_BOOT, "RTA will be given ID %d\n", entry + 1);

825

return 1;

826

}

827

}

828

829

rio_dprintk(RIO_DEBUG_BOOT, "RTA not configured for this host\n");

830

831

if (Rup >= (unsigned short) MAX_RUP) {

832

/*

833

** It was a host that did the booting

834

*/

835

MyType = "Host";

836

MyName = HostP->Name;

837

} else {

838

/*

839

** It was an RTA that did the booting

840

*/

841

MyType = "RTA";

842

MyName = HostP->Mapping[Rup].Name;

843

}

844

MyLink = readb(&PktCmdP->LinkNum);

845

846

/*

847

** There is no SLOT_IN_USE entry for this RTA attached to the current

848

** host card in the driver table.

849

**

850

** Check for a SLOT_TENTATIVE entry for this RTA attached to the

851

** current host card in the driver table.

852

**

853

** If we find one, then we re-use that slot.

854

*/

855

for (entry = 0; entry < MAX_RUP; entry++) {

856

if ((HostP->Mapping[entry].Flags & SLOT_TENTATIVE) && (HostP->Mapping[entry].RtaUniqueNum == RtaUniq)) {

857

if (RtaType == TYPE_RTA16) {

858

entry2 = HostP->Mapping[entry].ID2 - 1;

859

if ((HostP->Mapping[entry2].Flags & SLOT_TENTATIVE) && (HostP->Mapping[entry2].RtaUniqueNum == RtaUniq))

860

rio_dprintk(RIO_DEBUG_BOOT, "Found previous tentative slots (%d+%d)\n", entry, entry2);

861

else

862

continue;

863

} else

864

rio_dprintk(RIO_DEBUG_BOOT, "Found previous tentative slot (%d)\n", entry);

865

if (!p->RIONoMessage)

866

printk("RTA connected to %s '%s' (%c) not configured.\n", MyType, MyName, MyLink + 'A');

867

return 1;

868

}

869

}

870

871

/*

872

** There is no SLOT_IN_USE or SLOT_TENTATIVE entry for this RTA

873

** attached to the current host card in the driver table.

874

**

875

** Check if there is a SLOT_IN_USE or SLOT_TENTATIVE entry on another

876

** host for this RTA in the driver table.

877

**

878

** For a SLOT_IN_USE entry on another host, we need to delete the RTA

879

** entry from the other host and add it to this host (using some of

880

** the functions from table.c which do this).

881

** For a SLOT_TENTATIVE entry on another host, we must cope with the

882

** following scenario:

883

**

884

** + Plug 8 port RTA into host A. (This creates SLOT_TENTATIVE entry

885

** in table)

886

** + Unplug RTA and plug into host B. (We now have 2 SLOT_TENTATIVE

887

** entries)

888

** + Configure RTA on host B. (This slot now becomes SLOT_IN_USE)

889

** + Unplug RTA and plug back into host A.

890

** + Configure RTA on host A. We now have the same RTA configured

891

** with different ports on two different hosts.

892

*/

893

rio_dprintk(RIO_DEBUG_BOOT, "Have we seen RTA %x before?\n", RtaUniq);

894

found = 0;

895

Flag = 0; /* Convince the compiler this variable is initialized */

896

for (host = 0; !found && (host < p->RIONumHosts); host++) {

897

for (rta = 0; rta < MAX_RUP; rta++) {

898

if ((p->RIOHosts[host].Mapping[rta].Flags & (SLOT_IN_USE | SLOT_TENTATIVE)) && (p->RIOHosts[host].Mapping[rta].RtaUniqueNum == RtaUniq)) {

899

Flag = p->RIOHosts[host].Mapping[rta].Flags;

900

MapP = &p->RIOHosts[host].Mapping[rta];

901

if (RtaType == TYPE_RTA16) {

902

MapP2 = &p->RIOHosts[host].Mapping[MapP->ID2 - 1];

903

rio_dprintk(RIO_DEBUG_BOOT, "This RTA is units %d+%d from host %s\n", rta + 1, MapP->ID2, p->RIOHosts[host].Name);

904

} else

905

rio_dprintk(RIO_DEBUG_BOOT, "This RTA is unit %d from host %s\n", rta + 1, p->RIOHosts[host].Name);

906

found = 1;

907

break;

908

}

909

}

910

}

911

912

/*

913

** There is no SLOT_IN_USE or SLOT_TENTATIVE entry for this RTA

914

** attached to the current host card in the driver table.

915

**

916

** If we have not found a SLOT_IN_USE or SLOT_TENTATIVE entry on

917

** another host for this RTA in the driver table...

918

**

919

** Check for a SLOT_IN_USE entry for this RTA in the config table.

920

*/

921

if (!MapP) {

922

rio_dprintk(RIO_DEBUG_BOOT, "Look for RTA %x in RIOSavedTable\n", RtaUniq);

923

for (rta = 0; rta < TOTAL_MAP_ENTRIES; rta++) {

924

rio_dprintk(RIO_DEBUG_BOOT, "Check table entry %d (%x)", rta, p->RIOSavedTable[rta].RtaUniqueNum);

925

926

if ((p->RIOSavedTable[rta].Flags & SLOT_IN_USE) && (p->RIOSavedTable[rta].RtaUniqueNum == RtaUniq)) {

927

MapP = &p->RIOSavedTable[rta];

928

Flag = p->RIOSavedTable[rta].Flags;

929

if (RtaType == TYPE_RTA16) {

930

for (entry2 = rta + 1; entry2 < TOTAL_MAP_ENTRIES; entry2++) {

931

if (p->RIOSavedTable[entry2].RtaUniqueNum == RtaUniq)

932

break;

933

}

934

MapP2 = &p->RIOSavedTable[entry2];

935

rio_dprintk(RIO_DEBUG_BOOT, "This RTA is from table entries %d+%d\n", rta, entry2);

936

} else

937

rio_dprintk(RIO_DEBUG_BOOT, "This RTA is from table entry %d\n", rta);

938

break;

939

}

940

}

941

}

942

943

/*

944

** There is no SLOT_IN_USE or SLOT_TENTATIVE entry for this RTA

945

** attached to the current host card in the driver table.

946

**

947

** We may have found a SLOT_IN_USE entry on another host for this

948

** RTA in the config table, or a SLOT_IN_USE or SLOT_TENTATIVE entry

949

** on another host for this RTA in the driver table.

950

**

951

** Check the driver table for room to fit this newly discovered RTA.

952

** RIOFindFreeID() first looks for free slots and if it does not

953

** find any free slots it will then attempt to oust any

954

** tentative entry in the table.

955

*/

956

EmptySlot = 1;

957

if (RtaType == TYPE_RTA16) {

958

if (RIOFindFreeID(p, HostP, &entry, &entry2) == 0) {

959

RIODefaultName(p, HostP, entry);

960

rio_fill_host_slot(entry, entry2, RtaUniq, HostP);

961

EmptySlot = 0;

962

}

963

} else {

964

if (RIOFindFreeID(p, HostP, &entry, NULL) == 0) {

965

RIODefaultName(p, HostP, entry);

966

rio_fill_host_slot(entry, 0, RtaUniq, HostP);

967

EmptySlot = 0;

968

}

969

}

970

971

/*

972

** There is no SLOT_IN_USE or SLOT_TENTATIVE entry for this RTA

973

** attached to the current host card in the driver table.

974

**

975

** If we found a SLOT_IN_USE entry on another host for this

976

** RTA in the config or driver table, and there are enough free

977

** slots in the driver table, then we need to move it over and

978

** delete it from the other host.

979

** If we found a SLOT_TENTATIVE entry on another host for this

980

** RTA in the driver table, just delete the other host entry.

981

*/

982

if (EmptySlot == 0) {

983

if (MapP) {

984

if (Flag & SLOT_IN_USE) {

985

rio_dprintk(RIO_DEBUG_BOOT, "This RTA configured on another host - move entry to current host (1)\n");

986

HostP->Mapping[entry].SysPort = MapP->SysPort;

987

memcpy(HostP->Mapping[entry].Name, MapP->Name, MAX_NAME_LEN);

988

HostP->Mapping[entry].Flags = SLOT_IN_USE | RTA_BOOTED | RTA_NEWBOOT;

989

RIOReMapPorts(p, HostP, &HostP->Mapping[entry]);

990

if (HostP->Mapping[entry].SysPort < p->RIOFirstPortsBooted)

991

p->RIOFirstPortsBooted = HostP->Mapping[entry].SysPort;

992

if (HostP->Mapping[entry].SysPort > p->RIOLastPortsBooted)

993

p->RIOLastPortsBooted = HostP->Mapping[entry].SysPort;

994

rio_dprintk(RIO_DEBUG_BOOT, "SysPort %d, Name %s\n", (int) MapP->SysPort, MapP->Name);

995

} else {

996

rio_dprintk(RIO_DEBUG_BOOT, "This RTA has a tentative entry on another host - delete that entry (1)\n");

997

HostP->Mapping[entry].Flags = SLOT_TENTATIVE | RTA_BOOTED | RTA_NEWBOOT;

998

}

999

if (RtaType == TYPE_RTA16) {

1000

if (Flag & SLOT_IN_USE) {

1001

HostP->Mapping[entry2].Flags = SLOT_IN_USE | RTA_BOOTED | RTA_NEWBOOT | RTA16_SECOND_SLOT;

1002

HostP->Mapping[entry2].SysPort = MapP2->SysPort;

1003

/*

1004

** Map second block of ttys for 16 port RTA

1005

*/

1006

RIOReMapPorts(p, HostP, &HostP->Mapping[entry2]);

1007

if (HostP->Mapping[entry2].SysPort < p->RIOFirstPortsBooted)

1008

p->RIOFirstPortsBooted = HostP->Mapping[entry2].SysPort;

1009

if (HostP->Mapping[entry2].SysPort > p->RIOLastPortsBooted)

1010

p->RIOLastPortsBooted = HostP->Mapping[entry2].SysPort;

1011

rio_dprintk(RIO_DEBUG_BOOT, "SysPort %d, Name %s\n", (int) HostP->Mapping[entry2].SysPort, HostP->Mapping[entry].Name);

1012

} else

1013

HostP->Mapping[entry2].Flags = SLOT_TENTATIVE | RTA_BOOTED | RTA_NEWBOOT | RTA16_SECOND_SLOT;

1014

memset(MapP2, 0, sizeof(struct Map));

1015

}

1016

memset(MapP, 0, sizeof(struct Map));

1017

if (!p->RIONoMessage)

1018

printk("An orphaned RTA has been adopted by %s '%s' (%c).\n", MyType, MyName, MyLink + 'A');

1019

} else if (!p->RIONoMessage)

1020

printk("RTA connected to %s '%s' (%c) not configured.\n", MyType, MyName, MyLink + 'A');

1021

RIOSetChange(p);

1022

return 1;

1023

}

1024

1025

/*

1026

** There is no room in the driver table to make an entry for the

1027

** booted RTA. Keep a note of its Uniq Num in the overflow table,

1028

** so we can ignore it's ID requests.

1029

*/

1030

if (!p->RIONoMessage)

1031

printk("The RTA connected to %s '%s' (%c) cannot be configured. You cannot configure more than 128 ports to one host card.\n", MyType, MyName, MyLink + 'A');

1032

for (entry = 0; entry < HostP->NumExtraBooted; entry++) {

1033

if (HostP->ExtraUnits[entry] == RtaUniq) {

1034

/*

1035

** already got it!

1036

*/

1037

return 1;

1038

}

1039

}

1040

/*

1041

** If there is room, add the unit to the list of extras

1042

*/

1043

if (HostP->NumExtraBooted < MAX_EXTRA_UNITS)

1044

HostP->ExtraUnits[HostP->NumExtraBooted++] = RtaUniq;

1045

return 1;

1046

}

1047

1048

1049

/*

1050

** If the RTA or its host appears in the RIOBindTab[] structure then

1051

** we mustn't boot the RTA and should return 0.

1052

** This operation is slightly different from the other drivers for RIO

1053

** in that this is designed to work with the new utilities

1054

** not config.rio and is FAR SIMPLER.

1055

** We no longer support the RIOBootMode variable. It is all done from the

1056

** "boot/noboot" field in the rio.cf file.

1057

*/

1058

int RIOBootOk(struct rio_info *p, struct Host *HostP, unsigned long RtaUniq)

1059

{

1060

int Entry;

1061

unsigned int HostUniq = HostP->UniqueNum;

1062

1063

/*

1064

** Search bindings table for RTA or its parent.

1065

** If it exists, return 0, else 1.

1066

*/

1067

for (Entry = 0; (Entry < MAX_RTA_BINDINGS) && (p->RIOBindTab[Entry] != 0); Entry++) {

1068

if ((p->RIOBindTab[Entry] == HostUniq) || (p->RIOBindTab[Entry] == RtaUniq))

1069

return 0;

1070

}

1071

return 1;

1072

}

1073

1074

/*

1075

** Make an empty slot tentative. If this is a 16 port RTA, make both

1076

** slots tentative, and the second one RTA_SECOND_SLOT as well.

1077

*/

1078

1079

void rio_fill_host_slot(int entry, int entry2, unsigned int rta_uniq, struct Host *host)

1080

{

1081

int link;

1082

1083

rio_dprintk(RIO_DEBUG_BOOT, "rio_fill_host_slot(%d, %d, 0x%x...)\n", entry, entry2, rta_uniq);

1084

1085

host->Mapping[entry].Flags = (RTA_BOOTED | RTA_NEWBOOT | SLOT_TENTATIVE);

1086

host->Mapping[entry].SysPort = NO_PORT;

1087

host->Mapping[entry].RtaUniqueNum = rta_uniq;

1088

host->Mapping[entry].HostUniqueNum = host->UniqueNum;

1089

host->Mapping[entry].ID = entry + 1;

1090

host->Mapping[entry].ID2 = 0;

1091

if (entry2) {

1092

host->Mapping[entry2].Flags = (RTA_BOOTED | RTA_NEWBOOT | SLOT_TENTATIVE | RTA16_SECOND_SLOT);

1093

host->Mapping[entry2].SysPort = NO_PORT;

1094

host->Mapping[entry2].RtaUniqueNum = rta_uniq;

1095

host->Mapping[entry2].HostUniqueNum = host->UniqueNum;

1096

host->Mapping[entry2].Name[0] = '\0';

1097

host->Mapping[entry2].ID = entry2 + 1;

1098

host->Mapping[entry2].ID2 = entry + 1;

1099

host->Mapping[entry].ID2 = entry2 + 1;

1100

}

1101

/*

1102

** Must set these up, so that utilities show

1103

** topology of 16 port RTAs correctly

1104

*/

1105

for (link = 0; link < LINKS_PER_UNIT; link++) {

1106

host->Mapping[entry].Topology[link].Unit = ROUTE_DISCONNECT;

1107

host->Mapping[entry].Topology[link].Link = NO_LINK;

1108

if (entry2) {

1109

host->Mapping[entry2].Topology[link].Unit = ROUTE_DISCONNECT;

1110

host->Mapping[entry2].Topology[link].Link = NO_LINK;

1111

}

1112

}

1113

}