path: root/drivers/scsi/bfa/bfad_bsg.c

/*
 * Copyright (c) 2005-2010 Brocade Communications Systems, Inc.
 * All rights reserved
 * www.brocade.com
 *
 * Linux driver for Brocade Fibre Channel Host Bus Adapter.
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License (GPL) Version 2 as
 * published by the Free Software Foundation
 *
 * 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.
 */

#include <linux/uaccess.h>
#include "bfad_drv.h"
#include "bfad_im.h"
#include "bfad_bsg.h"

BFA_TRC_FILE(LDRV, BSG);

/* bfad_im_bsg_get_kobject - increment the bfa refcnt */
static void
bfad_im_bsg_get_kobject(struct fc_bsg_job *job)
{
	struct Scsi_Host *shost = job->shost;
	unsigned long flags;

	spin_lock_irqsave(shost->host_lock, flags);
	__module_get(shost->dma_dev->driver->owner);
	spin_unlock_irqrestore(shost->host_lock, flags);
}

/* bfad_im_bsg_put_kobject - decrement the bfa refcnt */
static void
bfad_im_bsg_put_kobject(struct fc_bsg_job *job)
{
	struct Scsi_Host *shost = job->shost;
	unsigned long flags;

	spin_lock_irqsave(shost->host_lock, flags);
	module_put(shost->dma_dev->driver->owner);
	spin_unlock_irqrestore(shost->host_lock, flags);
}

static int
bfad_iocmd_ioc_get_info(struct bfad_s *bfad, void *cmd)
{
	int	i;
	struct bfa_bsg_ioc_info_s *iocmd = (struct bfa_bsg_ioc_info_s *)cmd;
	struct bfad_im_port_s	*im_port;
	struct bfa_port_attr_s	pattr;
	unsigned long	flags;

	spin_lock_irqsave(&bfad->bfad_lock, flags);
	bfa_fcport_get_attr(&bfad->bfa, &pattr);
	iocmd->nwwn = pattr.nwwn;
	iocmd->pwwn = pattr.pwwn;
	iocmd->ioc_type = bfa_get_type(&bfad->bfa);
	iocmd->mac = bfa_get_mac(&bfad->bfa);
	iocmd->factory_mac = bfa_get_mfg_mac(&bfad->bfa);
	bfa_get_adapter_serial_num(&bfad->bfa, iocmd->serialnum);
	iocmd->factorynwwn = pattr.factorynwwn;
	iocmd->factorypwwn = pattr.factorypwwn;
	im_port = bfad->pport.im_port;
	iocmd->host = im_port->shost->host_no;
	spin_unlock_irqrestore(&bfad->bfad_lock, flags);

	strcpy(iocmd->name, bfad->adapter_name);
	strcpy(iocmd->port_name, bfad->port_name);
	strcpy(iocmd->hwpath, bfad->pci_name);

	/* set adapter hw path */
	strcpy(iocmd->adapter_hwpath, bfad->pci_name);
	i = strlen(iocmd->adapter_hwpath) - 1;
	while (iocmd->adapter_hwpath[i] != '.')
		i--;
	iocmd->adapter_hwpath[i] = '\0';
	iocmd->status = BFA_STATUS_OK;
	return 0;
}

static int
bfad_iocmd_ioc_get_attr(struct bfad_s *bfad, void *cmd)
{
	struct bfa_bsg_ioc_attr_s *iocmd = (struct bfa_bsg_ioc_attr_s *)cmd;
	unsigned long	flags;

	spin_lock_irqsave(&bfad->bfad_lock, flags);
	bfa_ioc_get_attr(&bfad->bfa.ioc, &iocmd->ioc_attr);
	spin_unlock_irqrestore(&bfad->bfad_lock, flags);

	/* fill in driver attr info */
	strcpy(iocmd->ioc_attr.driver_attr.driver, BFAD_DRIVER_NAME);
	strncpy(iocmd->ioc_attr.driver_attr.driver_ver,
		BFAD_DRIVER_VERSION, BFA_VERSION_LEN);
	strcpy(iocmd->ioc_attr.driver_attr.fw_ver,
		iocmd->ioc_attr.adapter_attr.fw_ver);
	strcpy(iocmd->ioc_attr.driver_attr.bios_ver,
		iocmd->ioc_attr.adapter_attr.optrom_ver);

	/* copy chip rev info first otherwise it will be overwritten */
	memcpy(bfad->pci_attr.chip_rev, iocmd->ioc_attr.pci_attr.chip_rev,
		sizeof(bfad->pci_attr.chip_rev));
	memcpy(&iocmd->ioc_attr.pci_attr, &bfad->pci_attr,
		sizeof(struct bfa_ioc_pci_attr_s));

	iocmd->status = BFA_STATUS_OK;
	return 0;
}

static int
bfad_iocmd_port_get_attr(struct bfad_s *bfad, void *cmd)
{
	struct bfa_bsg_port_attr_s *iocmd = (struct bfa_bsg_port_attr_s *)cmd;
	struct bfa_lport_attr_s	port_attr;
	unsigned long	flags;

	spin_lock_irqsave(&bfad->bfad_lock, flags);
	bfa_fcport_get_attr(&bfad->bfa, &iocmd->attr);
	bfa_fcs_lport_get_attr(&bfad->bfa_fcs.fabric.bport, &port_attr);
	spin_unlock_irqrestore(&bfad->bfad_lock, flags);

	if (iocmd->attr.topology != BFA_PORT_TOPOLOGY_NONE)
		iocmd->attr.pid = port_attr.pid;
	else
		iocmd->attr.pid = 0;

	iocmd->attr.port_type = port_attr.port_type;
	iocmd<