Commit ae436d9c authored by Adrian Bunk's avatar Adrian Bunk Committed by Linus Torvalds

[PATCH] SCSI qlogicfc.c: some cleanups

This patch does the following cleanups:
- make some needlessly global functions static
- remove qlogicfc.h since it doesn't contain much
- remove the unused function isp2x00_reset

Please review especially the latter two points.

From: Adrian Bunk <bunk@stusta.de>
Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent d15b48a1
......@@ -71,7 +71,25 @@
#define pci64_dma_build(hi,lo) \
((dma_addr_t)(((u64)(lo))|(((u64)(hi))<<32)))
#include "qlogicfc.h"
/*
* With the qlogic interface, every queue slot can hold a SCSI
* command with up to 2 scatter/gather entries. If we need more
* than 2 entries, continuation entries can be used that hold
* another 5 entries each. Unlike for other drivers, this means
* that the maximum number of scatter/gather entries we can
* support at any given time is a function of the number of queue
* slots available. That is, host->can_queue and host->sg_tablesize
* are dynamic and _not_ independent. This all works fine because
* requests are queued serially and the scatter/gather limit is
* determined for each queue request anew.
*/
#define DATASEGS_PER_COMMAND 2
#define DATASEGS_PER_CONT 5
#define QLOGICFC_REQ_QUEUE_LEN 255 /* must be power of two - 1 */
#define QLOGICFC_MAX_SG(ql) (DATASEGS_PER_COMMAND + (((ql) > 0) ? DATASEGS_PER_CONT*((ql) - 1) : 0))
#define QLOGICFC_CMD_PER_LUN 8
/* Configuration section **************************************************** */
......@@ -693,7 +711,7 @@ static inline void isp2x00_disable_irqs(struct Scsi_Host *host)
}
int isp2x00_detect(Scsi_Host_Template * tmpt)
static int isp2x00_detect(Scsi_Host_Template * tmpt)
{
int hosts = 0;
unsigned long wait_time;
......@@ -1083,7 +1101,7 @@ int isp2x00_init_fabric(struct Scsi_Host *host, struct id_name_map *port_db, int
#endif /* ISP2x00_FABRIC */
int isp2x00_release(struct Scsi_Host *host)
static int isp2x00_release(struct Scsi_Host *host)
{
struct isp2x00_hostdata *hostdata;
dma_addr_t busaddr;
......@@ -1107,7 +1125,7 @@ int isp2x00_release(struct Scsi_Host *host)
}
const char *isp2x00_info(struct Scsi_Host *host)
static const char *isp2x00_info(struct Scsi_Host *host)
{
static char buf[80];
struct isp2x00_hostdata *hostdata;
......@@ -1132,7 +1150,7 @@ const char *isp2x00_info(struct Scsi_Host *host)
* interrupt handler may call this routine as part of
* request-completion handling).
*/
int isp2x00_queuecommand(Scsi_Cmnd * Cmnd, void (*done) (Scsi_Cmnd *))
static int isp2x00_queuecommand(Scsi_Cmnd * Cmnd, void (*done) (Scsi_Cmnd *))
{
int i, sg_count, n, num_free;
u_int in_ptr, out_ptr;
......@@ -1697,7 +1715,7 @@ static int isp2x00_return_status(Scsi_Cmnd *Cmnd, struct Status_Entry *sts)
}
int isp2x00_abort(Scsi_Cmnd * Cmnd)
static int isp2x00_abort(Scsi_Cmnd * Cmnd)
{
u_short param[8];
int i;
......@@ -1755,37 +1773,7 @@ int isp2x00_abort(Scsi_Cmnd * Cmnd)
}
int isp2x00_reset(Scsi_Cmnd * Cmnd, unsigned int reset_flags)
{
u_short param[8];
struct Scsi_Host *host;
struct isp2x00_hostdata *hostdata;
int return_status = SCSI_RESET_SUCCESS;
ENTER("isp2x00_reset");
host = Cmnd->device->host;
hostdata = (struct isp2x00_hostdata *) host->hostdata;
param[0] = MBOX_BUS_RESET;
param[1] = 3;
isp2x00_disable_irqs(host);
isp2x00_mbox_command(host, param);
if (param[0] != MBOX_COMMAND_COMPLETE) {
printk("qlogicfc%d : scsi bus reset failure: %x\n", hostdata->host_id, param[0]);
return_status = SCSI_RESET_ERROR;
}
isp2x00_enable_irqs(host);
LEAVE("isp2x00_reset");
return return_status;
}
int isp2x00_biosparam(struct scsi_device *sdev, struct block_device *n,
static int isp2x00_biosparam(struct scsi_device *sdev, struct block_device *n,
sector_t capacity, int ip[])
{
int size = capacity;
......
/*
* QLogic ISP2x00 SCSI-FCP
*
* Written by Erik H. Moe, ehm@cris.com
* Copyright 1995, Erik H. Moe
*
* 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, 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.
*/
/* Renamed and updated to 1.3.x by Michael Griffith <grif@cs.ucr.edu> */
/* This is a version of the isp1020 driver which was modified by
* Chris Loveland <cwl@iol.unh.edu> to support the isp2x00
*/
/*
* $Date: 1995/09/22 02:32:56 $
* $Revision: 0.5 $
*
* $Log: isp1020.h,v $
* Revision 0.5 1995/09/22 02:32:56 root
* do auto request sense
*
* Revision 0.4 1995/08/07 04:48:28 root
* supply firmware with driver.
* numerous bug fixes/general cleanup of code.
*
* Revision 0.3 1995/07/16 16:17:16 root
* added reset/abort code.
*
* Revision 0.2 1995/06/29 03:19:43 root
* fixed biosparam.
* added queue protocol.
*
* Revision 0.1 1995/06/25 01:56:13 root
* Initial release.
*
*/
#ifndef _QLOGICFC_H
#define _QLOGICFC_H
/*
* With the qlogic interface, every queue slot can hold a SCSI
* command with up to 2 scatter/gather entries. If we need more
* than 2 entries, continuation entries can be used that hold
* another 5 entries each. Unlike for other drivers, this means
* that the maximum number of scatter/gather entries we can
* support at any given time is a function of the number of queue
* slots available. That is, host->can_queue and host->sg_tablesize
* are dynamic and _not_ independent. This all works fine because
* requests are queued serially and the scatter/gather limit is
* determined for each queue request anew.
*/
#define DATASEGS_PER_COMMAND 2
#define DATASEGS_PER_CONT 5
#define QLOGICFC_REQ_QUEUE_LEN 255 /* must be power of two - 1 */
#define QLOGICFC_MAX_SG(ql) (DATASEGS_PER_COMMAND + (((ql) > 0) ? DATASEGS_PER_CONT*((ql) - 1) : 0))
#define QLOGICFC_CMD_PER_LUN 8
int isp2x00_detect(Scsi_Host_Template *);
int isp2x00_release(struct Scsi_Host *);
const char * isp2x00_info(struct Scsi_Host *);
int isp2x00_queuecommand(Scsi_Cmnd *, void (* done)(Scsi_Cmnd *));
int isp2x00_abort(Scsi_Cmnd *);
int isp2x00_reset(Scsi_Cmnd *, unsigned int);
int isp2x00_biosparam(struct scsi_device *, struct block_device *,
sector_t, int[]);
#endif /* _QLOGICFC_H */
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