path: root/drivers/scsi/lpfc/lpfc_ct.c

/*******************************************************************
 * This file is part of the Emulex Linux Device Driver for         *
 * Enterprise Fibre Channel Host Bus Adapters.                     *
 * Refer to the README file included with this package for         *
 * driver version and adapter support.                             *
 * Copyright (C) 2004 Emulex Corporation.                          *
 * www.emulex.com                                                  *
 *                                                                 *
 * This program is free software; you can redistribute it and/or   *
 * modify it under the terms of the GNU General Public License     *
 * as published by the Free Software Foundation; either version 2  *
 * of the License, or (at your option) any later version.          *
 *                                                                 *
 * This program is distributed in the hope that it will be useful, *
 * but WITHOUT ANY WARRANTY; without even the implied warranty of  *
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the   *
 * GNU General Public License for more details, a copy of which    *
 * can be found in the file COPYING included with this package.    *
 *******************************************************************/

/*
 * $Id: lpfc_ct.c 1.161 2005/04/13 11:59:01EDT sf_support Exp  $
 *
 * Fibre Channel SCSI LAN Device Driver CT support
 */

#include <linux/blkdev.h>
#include <linux/pci.h>
#include <linux/interrupt.h>
#include <linux/utsname.h>

#include <scsi/scsi_device.h>
#include <scsi/scsi_host.h>

#include "lpfc_hw.h"
#include "lpfc_sli.h"
#include "lpfc_disc.h"
#include "lpfc_scsi.h"
#include "lpfc.h"
#include "lpfc_logmsg.h"
#include "lpfc_crtn.h"
#include "lpfc_version.h"

#define HBA_PORTSPEED_UNKNOWN               0	/* Unknown - transceiver
						 * incapable of reporting */
#define HBA_PORTSPEED_1GBIT                 1	/* 1 GBit/sec */
#define HBA_PORTSPEED_2GBIT                 2	/* 2 GBit/sec */
#define HBA_PORTSPEED_4GBIT                 8   /* 4 GBit/sec */
#define HBA_PORTSPEED_8GBIT                16   /* 8 GBit/sec */
#define HBA_PORTSPEED_10GBIT                4	/* 10 GBit/sec */
#define HBA_PORTSPEED_NOT_NEGOTIATED        5	/* Speed not established */

#define FOURBYTES	4


static char *lpfc_release_version = LPFC_DRIVER_VERSION;

/*
 * lpfc_ct_unsol_event
 */
void
lpfc_ct_unsol_event(struct lpfc_hba * phba,
		    struct lpfc_sli_ring * pring, struct lpfc_iocbq * piocbq)
{

	struct lpfc_iocbq *next_piocbq;
	struct lpfc_dmabuf *pmbuf = NULL;
	struct lpfc_dmabuf *matp, *next_matp;
	uint32_t ctx = 0, size = 0, cnt = 0;
	IOCB_t *icmd = &piocbq->iocb;
	IOCB_t *save_icmd = icmd;
	int i, go_exit = 0;
	struct list_head head;

	if ((icmd->ulpStatus == IOSTAT_LOCAL_REJECT) &&
		((icmd->un.ulpWord[4] & 0xff) == IOERR_RCV_BUFFER_WAITING)) {
		/* Not enough posted buffers; Try posting more buffers */
		phba->fc_stat.NoRcvBuf++;
		lpfc_post_buffer(phba, pring, 0, 1);
		return;
	}

	/* If there are no BDEs associated with this IOCB,
	 * there is nothing to do.
	 */
	if (icmd->ulpBdeCount == 0)
		return;

	INIT_LIST_HEAD(&head);
	list_add_tail(&head, &piocbq->list);

	list_for_each_entry_safe(piocbq, next_piocbq, &head, list) {
		icmd = &piocbq->iocb;
		if (ctx == 0)
			ctx = (uint32_t) (icmd->ulpContext);
		if (icmd->ulpBdeCount == 0)
			continue;

		for (i = 0; i < icmd->ulpBdeCount; i++) {
			matp = lpfc_sli_ringpostbuf_get(phba, pring,
							getPaddr(icmd->un.
								 cont64[i].
								 addrHigh,
								 icmd->un.
								 cont64[i].