xref: /linux/drivers/scsi/csiostor/csio_init.h (revision 43af2146)

/*
 * This file is part of the Chelsio FCoE driver for Linux.
 *
 * Copyright (c) 2008-2012 Chelsio Communications, Inc. All rights reserved.
 *
 * This software is available to you under a choice of one of two
 * licenses.  You may choose to be licensed under the terms of the GNU
 * General Public License (GPL) Version 2, available from the file
 * COPYING in the main directory of this source tree, or the
 * OpenIB.org BSD license below:
 *
 *     Redistribution and use in source and binary forms, with or
 *     without modification, are permitted provided that the following
 *     conditions are met:
 *
 *      - Redistributions of source code must retain the above
 *        copyright notice, this list of conditions and the following
 *        disclaimer.
 *
 *      - Redistributions in binary form must reproduce the above
 *        copyright notice, this list of conditions and the following
 *        disclaimer in the documentation and/or other materials
 *        provided with the distribution.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */

#ifndef __CSIO_INIT_H__
#define __CSIO_INIT_H__

#include <linux/pci.h>
#include <linux/if_ether.h>
#include <scsi/scsi.h>
#include <scsi/scsi_device.h>
#include <scsi/scsi_host.h>
#include <scsi/scsi_transport_fc.h>

#include "csio_scsi.h"
#include "csio_lnode.h"
#include "csio_rnode.h"
#include "csio_hw.h"

#define CSIO_DRV_AUTHOR			"Chelsio Communications"
#define CSIO_DRV_DESC			"Chelsio FCoE driver"
#define CSIO_DRV_VERSION		"1.0.0-ko"

extern struct fc_function_template csio_fc_transport_funcs;
extern struct fc_function_template csio_fc_transport_vport_funcs;

void csio_fchost_attr_init(struct csio_lnode *);

/* INTx handlers */
void csio_scsi_intx_handler(struct csio_hw *, void *, uint32_t,
			       struct csio_fl_dma_buf *, void *);

void csio_fwevt_intx_handler(struct csio_hw *, void *, uint32_t,
				struct csio_fl_dma_buf *, void *);

/* Common os lnode APIs */
void csio_lnodes_block_request(struct csio_hw *);
void csio_lnodes_unblock_request(struct csio_hw *);
void csio_lnodes_block_by_port(struct csio_hw *, uint8_t);
void csio_lnodes_unblock_by_port(struct csio_hw *, uint8_t);

struct csio_lnode *csio_shost_init(struct csio_hw *, struct device *, bool,
					struct csio_lnode *);
void csio_shost_exit(struct csio_lnode *);
void csio_lnodes_exit(struct csio_hw *, bool);

/* DebugFS helper routines */
void csio_add_debugfs_mem(struct csio_hw *, const char *,
		unsigned int, unsigned int);

static inline struct Scsi_Host *
csio_ln_to_shost(struct csio_lnode *ln)
{
	return container_of((void *)ln, struct Scsi_Host, hostdata[0]);
}

/* SCSI -- locking version of get/put ioreqs  */
static inline struct csio_ioreq *
csio_get_scsi_ioreq_lock(struct csio_hw *hw, struct csio_scsim *scsim)
{
	struct csio_ioreq *ioreq;
	unsigned long flags;

	spin_lock_irqsave(&scsim->freelist_lock, flags);
	ioreq = csio_get_scsi_ioreq(scsim);
	spin_unlock_irqrestore(&scsim->freelist_lock, flags);

	return ioreq;
}

static inline void
csio_put_scsi_ioreq_lock(struct csio_hw *hw, struct csio_scsim *scsim,
			 struct csio_ioreq *ioreq)
{
	unsigned long flags;

	spin_lock_irqsave(&scsim->freelist_lock, flags);
	csio_put_scsi_ioreq(scsim, ioreq);
	spin_unlock_irqrestore(&scsim->freelist_lock, flags);
}

/* Called in interrupt context */
static inline void
csio_put_scsi_ioreq_list_lock(struct csio_hw *hw, struct csio_scsim *scsim,
			      struct list_head *reqlist, int n)
{
	unsigned long flags;

	spin_lock_irqsave(&scsim->freelist_lock, flags);
	csio_put_scsi_ioreq_list(scsim, reqlist, n);
	spin_unlock_irqrestore(&scsim->freelist_lock, flags);
}

/* Called in interrupt context */
static inline void
csio_put_scsi_ddp_list_lock(struct csio_hw *hw, struct csio_scsim *scsim,
			      struct list_head *reqlist, int n)
{
	unsigned long flags;

	spin_lock_irqsave(&hw->lock, flags);
	csio_put_scsi_ddp_list(scsim, reqlist, n);
	spin_unlock_irqrestore(&hw->lock, flags);
}

#endif /* ifndef __CSIO_INIT_H__ */