[SCSI] fc4: remove this and all associated drivers

This code has been slowly rotting for about eight years.  It's currently
impeding a few SCSI cleanups, and nobody seems to have hardware to test
it any more.  I talked to Dave Miller about it, and he agrees we can
delete it.  If anyone wants a software FC stack in future, they can
retrieve this driver from git.

Signed-off-by: Matthew Wilcox <matthew@wil.cx>
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

12 files changed, 0 insertions, 4064 deletions

diff --git a/drivers/fc4/Kconfig b/drivers/fc4/Kconfig
deleted file mode 100644
index 345dbe6f10d..00000000000
--- a/drivers/fc4/Kconfig
+++ /dev/null
@@ -1,81 +0,0 @@
-#
-# FC4 device configuration
-#
-
-menu "Fibre Channel support"
-
-config FC4
-	tristate "Fibre Channel and FC4 SCSI support"
-	---help---
-	  Fibre Channel is a high speed serial protocol mainly used to
-	  connect large storage devices to the computer; it is compatible with
-	  and intended to replace SCSI.
-
-	  This is an experimental support for storage arrays connected to your
-	  computer using optical fibre cables and the "X3.269-199X Fibre
-	  Channel Protocol for SCSI" specification. If you want to use this,
-	  you need to say Y here and to "SCSI support" as well as to the
-	  drivers for the storage array itself and for the interface adapter
-	  such as SOC or SOC+. This subsystem could even serve for IP
-	  networking, with some code extensions.
-
-	  If unsure, say N.
-
-comment "FC4 drivers"
-	depends on FC4
-
-config FC4_SOC
-	tristate "Sun SOC/Sbus"
-	depends on FC4!=n && SPARC
-	help
-	  Serial Optical Channel is an interface card with one or two Fibre
-	  Optic ports, each of which can be connected to a disk array. Note
-	  that if you have older firmware in the card, you'll need the
-	  microcode from the Solaris driver to make it work.
-
-	  To compile this support as a module, choose M here: the module will
-	  be called soc.
-
-config FC4_SOCAL
-	tristate "Sun SOC+ (aka SOCAL)"
-	depends on FC4!=n && SPARC
-	---help---
-	  Serial Optical Channel Plus is an interface card with up to two
-	  Fibre Optic ports. This card supports FC Arbitrated Loop (usually
-	  A5000 or internal FC disks in E[3-6]000 machines through the
-	  Interface Board). You'll probably need the microcode from the
-	  Solaris driver to make it work.
-
-	  To compile this support as a module, choose M here: the module will
-	  be called socal.
-
-comment "FC4 targets"
-	depends on FC4
-
-config SCSI_PLUTO
-	tristate "SparcSTORAGE Array 100 and 200 series"
-	depends on FC4!=n && SCSI
-	help
-	  If you never bought a disk array made by Sun, go with N.
-
-	  To compile this support as a module, choose M here: the module will
-	  be called pluto.
-
-config SCSI_FCAL
-	tristate "Sun Enterprise Network Array (A5000 and EX500)" if SPARC
-	depends on FC4!=n && SCSI
-	help
-	  This driver drives FC-AL disks connected through a Fibre Channel
-	  card using the drivers/fc4 layer (currently only SOCAL). The most
-	  common is either A5000 array or internal disks in E[3-6]000
-	  machines.
-
-	  To compile this support as a module, choose M here: the module will
-	  be called fcal.
-
-config SCSI_FCAL
-	prompt "Generic FC-AL disk driver"
-	depends on FC4!=n && SCSI && !SPARC
-
-endmenu
-
diff --git a/drivers/fc4/Makefile b/drivers/fc4/Makefile
deleted file mode 100644
index 0db3fbb553e..00000000000
--- a/drivers/fc4/Makefile
+++ /dev/null
@@ -1,9 +0,0 @@
-#
-# Makefile for the Linux Fibre Channel device drivers.
-#
-
-fc4-objs := fc.o fc_syms.o
-
-obj-$(CONFIG_FC4) += fc4.o
-obj-$(CONFIG_FC4_SOC) += soc.o
-obj-$(CONFIG_FC4_SOCAL) += socal.o
diff --git a/drivers/fc4/fc-al.h b/drivers/fc4/fc-al.h
deleted file mode 100644
index 62d3ca436d7..00000000000
--- a/drivers/fc4/fc-al.h
+++ /dev/null
@@ -1,27 +0,0 @@
-/* fc-al.h: Definitions for Fibre Channel Arbitrated Loop topology.
- *
- * Copyright (C) 1998 Jakub Jelinek (jj@sunsite.mff.cuni.cz)
- *
- * Sources:
- *	Fibre Channel Arbitrated Loop (FC-AL), ANSI, Rev. 4.5, 1995
- */
-
-#ifndef __FC_AL_H
-#define __FC_AL_H
-
-/* Loop initialization payloads */
-#define	FC_AL_LISM	0x11010000	/* Select Master, 12B payload */
-#define FC_AL_LIFA	0x11020000	/* Fabric Assign AL_PA bitmap, 20B payload */
-#define FC_AL_LIPA	0x11030000	/* Previously Acquired AL_PA bitmap, 20B payload */
-#define FC_AL_LIHA	0x11040000	/* Hard Assigned AL_PA bitmap, 20B payload */
-#define FC_AL_LISA	0x11050000	/* Soft Assigned AL_PA bitmap, 20B payload */
-#define FC_AL_LIRP	0x11060000	/* Report AL_PA position map, 132B payload */
-#define FC_AL_LILP	0x11070000	/* Loop AL_PA position map, 132B payload */
-
-typedef struct {
-	u32	magic;
-	u8	len;
-	u8	alpa[127];
-} fc_al_posmap;
-
-#endif /* !(__FC_H) */
diff --git a/drivers/fc4/fc.c b/drivers/fc4/fc.c
deleted file mode 100644
index 82de9e1adb1..00000000000
--- a/drivers/fc4/fc.c
+++ /dev/null
@@ -1,1146 +0,0 @@
-/* fc.c: Generic Fibre Channel and FC4 SCSI driver.
- *
- * Copyright (C) 1997,1998,1999 Jakub Jelinek (jj@ultra.linux.cz)
- * Copyright (C) 1997,1998 Jirka Hanika (geo@ff.cuni.cz)
- *
- * There are two kinds of Fibre Channel adapters used in Linux. Either
- * the adapter is "smart" and does all FC bookkeeping by itself and
- * just presents a standard SCSI interface to the operating system
- * (that's e.g. the case with Qlogic FC cards), or leaves most of the FC
- * bookkeeping to the OS (e.g. soc, socal). Drivers for the former adapters
- * will look like normal SCSI drivers (with the exception of max_id will be
- * usually 127), the latter on the other side allows SCSI, IP over FC and other
- * protocols. This driver tree is for the latter adapters.
- *
- * This file should support both Point-to-Point and Arbitrated Loop topologies.
- *
- * Sources:
- *	Fibre Channel Physical & Signaling Interface (FC-PH), dpANS, 1994
- *	dpANS Fibre Channel Protocol for SCSI (X3.269-199X), Rev. 012, 1995
- *	Fibre Channel Arbitrated Loop (FC-AL), Rev. 4.5, 1995
- *	Fibre Channel Private Loop SCSI Direct Attach (FC-PLDA), Rev. 2.1, 1997
- */
-
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/jiffies.h>
-#include <linux/types.h>
-#include <linux/fcntl.h>
-#include <linux/interrupt.h>
-#include <linux/ptrace.h>
-#include <linux/ioport.h>
-#include <linux/in.h>
-#include <linux/slab.h>
-#include <linux/string.h>
-#include <linux/init.h>
-
-#include <asm/pgtable.h>
-#include <asm/irq.h>
-#include <asm/semaphore.h>
-#include "fcp_impl.h"
-#include <scsi/scsi_host.h>
-
-/* #define FCDEBUG */
-
-#define fc_printk printk ("%s: ", fc->name); printk 
-
-#ifdef FCDEBUG
-#define FCD(x)  fc_printk x;
-#define FCND(x)	printk ("FC: "); printk x;
-#else
-#define FCD(x)
-#define FCND(x)
-#endif
-
-#ifdef __sparc__
-#define dma_alloc_consistent(d,s,p) sbus_alloc_consistent(d,s,p)
-#define dma_free_consistent(d,s,v,h) sbus_free_consistent(d,s,v,h)
-#define dma_map_single(d,v,s,dir) sbus_map_single(d,v,s,dir)
-#define dma_unmap_single(d,h,s,dir) sbus_unmap_single(d,h,s,dir)
-#define dma_map_sg(d,s,n,dir) sbus_map_sg(d,s,n,dir)
-#define dma_unmap_sg(d,s,n,dir) sbus_unmap_sg(d,s,n,dir)
-#else
-#define dma_alloc_consistent(d,s,p) pci_alloc_consistent(d,s,p)
-#define dma_free_consistent(d,s,v,h) pci_free_consistent(d,s,v,h)
-#define dma_map_single(d,v,s,dir) pci_map_single(d,v,s,dir)
-#define dma_unmap_single(d,h,s,dir) pci_unmap_single(d,h,s,dir)
-#define dma_map_sg(d,s,n,dir) pci_map_sg(d,s,n,dir)
-#define dma_unmap_sg(d,s,n,dir) pci_unmap_sg(d,s,n,dir)
-#endif							       
-
-#define FCP_CMND(SCpnt) ((fcp_cmnd *)&(SCpnt->SCp))
-#define FC_SCMND(SCpnt) ((fc_channel *)(SCpnt->device->host->hostdata[0]))
-#define SC_FCMND(fcmnd)	((struct scsi_cmnd *)((long)fcmnd - (long)&(((struct scsi_cmnd *)0)->SCp)))
-
-static int fcp_scsi_queue_it(fc_channel *, struct scsi_cmnd *, fcp_cmnd *, int);
-void fcp_queue_empty(fc_channel *);
-
-static void fcp_scsi_insert_queue (fc_channel *fc, fcp_cmnd *fcmd)
-{
-	if (!fc->scsi_que) {
-		fc->scsi_que = fcmd;
-		fcmd->next = fcmd;
-		fcmd->prev = fcmd;
-	} else {
-		fc->scsi_que->prev->next = fcmd;
-		fcmd->prev = fc->scsi_que->prev;
-		fc->scsi_que->prev = fcmd;
-		fcmd->next = fc->scsi_que;
-	}
-}
-
-static void fcp_scsi_remove_queue (fc_channel *fc, fcp_cmnd *fcmd)
-{
-	if (fcmd == fcmd->next) {
-		fc->scsi_que = NULL;
-		return;
-	}
-	if (fcmd == fc->scsi_que)
-		fc->scsi_que = fcmd->next;
-	fcmd->prev->next = fcmd->next;
-	fcmd->next->prev = fcmd->prev;
-}
-
-fc_channel *fc_channels = NULL;
-
-#define LSMAGIC	620829043
-typedef struct {
-	/* Must be first */
-	struct semaphore sem;
-	int magic;
-	int count;
-	logi *logi;
-	fcp_cmnd *fcmds;
-	atomic_t todo;
-	struct timer_list timer;
-	unsigned char grace[0];
-} ls;
-
-#define LSOMAGIC 654907799
-typedef struct {
-	/* Must be first */
-	struct semaphore sem;
-	int magic;
-	int count;
-	fcp_cmnd *fcmds;
-	atomic_t todo;
-	struct timer_list timer;
-} lso;
-
-#define LSEMAGIC 84482456
-typedef struct {
-	/* Must be first */
-	struct semaphore sem;
-	int magic;
-	int status;
-	struct timer_list timer;
-} lse;
-
-static void fcp_login_timeout(unsigned long data)
-{
-	ls *l = (ls *)data;
-	FCND(("Login timeout\n"))
-	up(&l->sem);
-}
-
-static void fcp_login_done(fc_channel *fc, int i, int status)
-{
-	fcp_cmnd *fcmd;
-	logi *plogi;
-	fc_hdr *fch;
-	ls *l = (ls *)fc->ls;
-	
-	FCD(("Login done %d %d\n", i, status))
-	if (i < l->count) {
-		if (fc->state == FC_STATE_FPORT_OK) {
-			FCD(("Additional FPORT_OK received with status %d\n", status))
-			return;
-		}
-		switch (status) {
-		case FC_STATUS_OK: /* Oh, we found a fabric */
-		case FC_STATUS_P_RJT: /* Oh, we haven't found any */
-			fc->state = FC_STATE_FPORT_OK;
-			fcmd = l->fcmds + i;
-			plogi = l->logi + 3 * i;
-			dma_unmap_single (fc->dev, fcmd->cmd, 3 * sizeof(logi),
-					  DMA_BIDIRECTIONAL);
-			plogi->code = LS_PLOGI;
-			memcpy (&plogi->nport_wwn, &fc->wwn_nport, sizeof(fc_wwn));
-			memcpy (&plogi->node_wwn, &fc->wwn_node, sizeof(fc_wwn));
-			memcpy (&plogi->common, fc->common_svc, sizeof(common_svc_parm));
-			memcpy (&plogi->class1, fc->class_svcs, 3*sizeof(svc_parm));
-			fch = &fcmd->fch;
-			fcmd->token += l->count;
-			FILL_FCHDR_RCTL_DID(fch, R_CTL_ELS_REQ, fc->did);
-			FILL_FCHDR_SID(fch, fc->sid);
-#ifdef FCDEBUG
-			{
-				int i;
-				unsigned *x = (unsigned *)plogi;
-				printk ("logi: ");
-				for (i = 0; i < 21; i++)
-					printk ("%08x ", x[i]);
-				printk ("\n");
-			}
-#endif			
-			fcmd->cmd = dma_map_single (fc->dev, plogi, 3 * sizeof(logi),
-						    DMA_BIDIRECTIONAL);
-			fcmd->rsp = fcmd->cmd + 2 * sizeof(logi);
-			if (fc->hw_enque (fc, fcmd))
-				printk ("FC: Cannot enque PLOGI packet on %s\n", fc->name);
-			break;
-		case FC_STATUS_ERR_OFFLINE:
-			fc->state = FC_STATE_MAYBEOFFLINE;
-			FCD (("FC is offline %d\n", l->grace[i]))
-			break;
-		default:
-			printk ("FLOGI failed for %s with status %d\n", fc->name, status);
-			/* Do some sort of error recovery here */
-			break;
-		}
-	} else {
-		i -= l->count;
-		if (fc->state != FC_STATE_FPORT_OK) {
-			FCD(("Unexpected N-PORT rsp received"))
-			return;
-		}
-		switch (status) {
-		case FC_STATUS_OK:
-			plogi = l->logi + 3 * i;
-			dma_unmap_single (fc->dev, l->fcmds[i].cmd, 3 * sizeof(logi),
-					  DMA_BIDIRECTIONAL);
-			if (!fc->wwn_dest.lo && !fc->wwn_dest.hi) {
-				memcpy (&fc->wwn_dest, &plogi[1].node_wwn, sizeof(fc_wwn)); 
-				FCD(("Dest WWN %08x%08x\n", *(u32 *)&fc->wwn_dest, fc->wwn_dest.lo))
-			} else if (fc->wwn_dest.lo != plogi[1].node_wwn.lo ||
-				   fc->wwn_dest.hi != plogi[1].node_wwn.hi) {
-				printk ("%s: mismatch in wwns. Got %08x%08x, expected %08x%08x\n",
-					fc->name,
-					*(u32 *)&plogi[1].node_wwn, plogi[1].node_wwn.lo,
-					*(u32 *)&fc->wwn_dest, fc->wwn_dest.lo);
-			}
-			fc->state = FC_STATE_ONLINE;
-			printk ("%s: ONLINE\n", fc->name);
-			if (atomic_dec_and_test (&l->todo))
-				up(&l->sem);
-			break;
-		case FC_STATUS_ERR_OFFLINE:
-			fc->state = FC_STATE_OFFLINE;
-			dma_unmap_single (fc->dev, l->fcmds[i].cmd, 3 * sizeof(logi),
-					  DMA_BIDIRECTIONAL);
-			printk ("%s: FC is offline\n", fc->name);
-			if (atomic_dec_and_test (&l->todo))
-				up(&l->sem);
-			break;
-		default:
-			printk ("PLOGI failed for %s with status %d\n", fc->name, status);
-			/* Do some sort of error recovery here */
-			break;
-		}
-	}
-}
-
-static void fcp_report_map_done(fc_channel *fc, int i, int status)
-{
-	fcp_cmnd *fcmd;
-	fc_hdr *fch;
-	unsigned char j;
-	ls *l = (ls *)fc->ls;
-	fc_al_posmap *p;
-	
-	FCD(("Report map done %d %d\n", i, status))
-	switch (status) {
-	case FC_STATUS_OK: /* Ok, let's have a fun on a loop */
-		dma_unmap_single (fc->dev, l->fcmds[i].cmd, 3 * sizeof(logi),
-				  DMA_BIDIRECTIONAL);
-		p = (fc_al_posmap *)(l->logi + 3 * i);
-#ifdef FCDEBUG
-		{
-		u32 *u = (u32 *)p;
-		FCD(("%08x\n", u[0]))
-		u ++;
-		FCD(("%08x.%08x.%08x.%08x.%08x.%08x.%08x.%08x\n", u[0],u[1],u[2],u[3],u[4],u[5],u[6],u[7]))
-		}
-#endif		
-		if ((p->magic & 0xffff0000) != FC_AL_LILP || !p->len) {
-			printk ("FC: Bad magic from REPORT_AL_MAP on %s - %08x\n", fc->name, p->magic);
-			fc->state = FC_STATE_OFFLINE;
-		} else {
-			fc->posmap = kzalloc(sizeof(fcp_posmap)+p->len, GFP_KERNEL);
-			if (!fc->posmap) {
-				printk("FC: Not enough memory, offlining channel\n");
-				fc->state = FC_STATE_OFFLINE;
-			} else {
-				int k;
-				/* FIXME: This is where SOCAL transfers our AL-PA.
-				   Keep it here till we found out what other cards do... */
-				fc->sid = (p->magic & 0xff);
-				for (i = 0; i < p->len; i++)
-					if (p->alpa[i] == fc->sid)
-						break;
-				k = p->len;
-				if (i == p->len)
-					i = 0;
-				else {
-					p->len--;
-					i++;
-				}
-				fc->posmap->len = p->len;
-				for (j = 0; j < p->len; j++) {
-					if (i == k) i = 0;
-					fc->posmap->list[j] = p->alpa[i++];
-				}
-				fc->state = FC_STATE_ONLINE;
-			}
-		}
-		printk ("%s: ONLINE\n", fc->name);
-		if (atomic_dec_and_test (&l->todo))
-			up(&l->sem);
-		break;
-	case FC_STATUS_POINTTOPOINT: /* We're Point-to-Point, no AL... */
-		FCD(("SID %d DID %d\n", fc->sid, fc->did))
-		fcmd = l->fcmds + i;
-		dma_unmap_single(fc->dev, fcmd->cmd, 3 * sizeof(logi),
-				 DMA_BIDIRECTIONAL);
-		fch = &fcmd->fch;
-		memset(l->logi + 3 * i, 0, 3 * sizeof(logi));
-		FILL_FCHDR_RCTL_DID(fch, R_CTL_ELS_REQ, FS_FABRIC_F_PORT);
-		FILL_FCHDR_SID(fch, 0);
-		FILL_FCHDR_TYPE_FCTL(fch, TYPE_EXTENDED_LS, F_CTL_FIRST_SEQ | F_CTL_SEQ_INITIATIVE);
-		FILL_FCHDR_SEQ_DF_SEQ(fch, 0, 0, 0);
-		FILL_FCHDR_OXRX(fch, 0xffff, 0xffff);
-		fch->param = 0;
-		l->logi [3 * i].code = LS_FLOGI;
-		fcmd->cmd = dma_map_single (fc->dev, l->logi + 3 * i, 3 * sizeof(logi),
-					    DMA_BIDIRECTIONAL);
-		fcmd->rsp = fcmd->cmd + sizeof(logi);
-		fcmd->cmdlen = sizeof(logi);
-		fcmd->rsplen = sizeof(logi);
-		fcmd->data = (dma_addr_t)NULL;
-		fcmd->class = FC_CLASS_SIMPLE;
-		fcmd->proto = TYPE_EXTENDED_LS;
-		if (fc->hw_enque (fc, fcmd))
-			printk ("FC: Cannot enque FLOGI packet on %s\n", fc->name);
-		break;
-	case FC_STATUS_ERR_OFFLINE:
-		fc->state = FC_STATE_MAYBEOFFLINE;
-		FCD (("FC is offline %d\n", l->grace[i]))
-		break;
-	default:
-		printk ("FLOGI failed for %s with status %d\n", fc->name, status);
-		/* Do some sort of error recovery here */
-		break;
-	}
-}
-
-void fcp_register(fc_channel *fc, u8 type, int unregister)
-{
-	int size, i;
-	int slots = (fc->can_queue * 3) >> 1;
-
-	FCND(("Going to %sregister\n", unregister ? "un" : ""))
-
-	if (type == TYPE_SCSI_FCP) {
-		if (!unregister) {
-			fc->scsi_cmd_pool = (fcp_cmd *)
-				dma_alloc_consistent (fc->dev,
-						      slots * (sizeof (fcp_cmd) + fc->rsp_size),
-						      &fc->dma_scsi_cmd);
-			fc->scsi_rsp_pool = (char *)(fc->scsi_cmd_pool + slots);
-			fc->dma_scsi_rsp = fc->dma_scsi_cmd + slots * sizeof (fcp_cmd);
-			fc->scsi_bitmap_end = (slots + 63) & ~63;
-			size = fc->scsi_bitmap_end / 8;
-			fc->scsi_bitmap = kzalloc (size, GFP_KERNEL);
-			set_bit (0, fc->scsi_bitmap);
-			for (i = fc->can_queue; i < fc->scsi_bitmap_end; i++)
-				set_bit (i, fc->scsi_bitmap);
-			fc->scsi_free = fc->can_queue;
-			fc->cmd_slots = kzalloc(slots * sizeof(fcp_cmnd*), GFP_KERNEL);
-			fc->abort_count = 0;
-		} else {
-			fc->scsi_name[0] = 0;
-			kfree (fc->scsi_bitmap);
-			kfree (fc->cmd_slots);
-			FCND(("Unregistering\n"));
-#if 0
-			if (fc->rst_pkt) {
-				if (fc->rst_pkt->eh_state == SCSI_STATE_UNUSED)
-					kfree(fc->rst_pkt);
-				else {
-					/* Can't happen. Some memory would be lost. */
-					printk("FC: Reset in progress. Now?!");
-				}
-			}
-#endif
-			FCND(("Unregistered\n"));
-		}
-	} else
-		printk ("FC: %segistering unknown type %02x\n", unregister ? "Unr" : "R", type);
-}
-
-static void fcp_scsi_done(struct scsi_cmnd *SCpnt);
-
-static inline void fcp_scsi_receive(fc_channel *fc, int token, int status, fc_hdr *fch)
-{
-	fcp_cmnd *fcmd;
-	fcp_rsp  *rsp;
-	int host_status;
-	struct scsi_cmnd *SCpnt;
-	int sense_len;
-	int rsp_status;
-
-	fcmd = fc->cmd_slots[token];
-	if (!fcmd) return;
-	rsp = (fcp_rsp *) (fc->scsi_rsp_pool + fc->rsp_size * token);
-	SCpnt = SC_FCMND(fcmd);
-
-	if (SCpnt->done != fcp_scsi_done)
-		return;
-
-	rsp_status = rsp->fcp_status;
-	FCD(("rsp_status %08x status %08x\n", rsp_status, status))
-	switch (status) {
-	case FC_STATUS_OK:
-		host_status=DID_OK;
-		
-		if (rsp_status & FCP_STATUS_RESID) {
-#ifdef FCDEBUG
-			FCD(("Resid %d\n", rsp->fcp_resid))
-			{
-				fcp_cmd *cmd = fc->scsi_cmd_pool + token;
-				int i;
-				
-				printk ("Command ");
-				for (i = 0; i < sizeof(fcp_cmd); i+=4)
-					printk ("%08x ", *(u32 *)(((char *)cmd)+i));
-				printk ("\nResponse ");
-				for (i = 0; i < fc->rsp_size; i+=4)
-					printk ("%08x ", *(u32 *)(((char *)rsp)+i));
-				printk ("\n");
-			}
-#endif			
-		}
-
-		if (rsp_status & FCP_STATUS_SENSE_LEN) {
-			sense_len = rsp->fcp_sense_len;
-			if (sense_len > sizeof(SCpnt->sense_buffer)) sense_len = sizeof(SCpnt->sense_buffer);
-			memcpy(SCpnt->sense_buffer, ((char *)(rsp+1)), sense_len);
-		}
-		
-		if (fcmd->data)
-			dma_unmap_sg(fc->dev, scsi_sglist(SCpnt),
-				     scsi_sg_count(SCpnt),
-				     SCpnt->sc_data_direction);
-		break;
-	default:
-		host_status=DID_ERROR; /* FIXME */
-		FCD(("Wrong FC status %d for token %d\n", status, token))
-		break;
-	}
-
-	if (status_byte(rsp_status) == QUEUE_FULL) {
-		printk ("%s: (%d,%d) Received rsp_status 0x%x\n", fc->name, SCpnt->device->channel, SCpnt->device->id, rsp_status);
-	}	
-	
-	SCpnt->result = (host_status << 16) | (rsp_status & 0xff);
-#ifdef FCDEBUG	
-	if (host_status || SCpnt->result || rsp_status) printk("FC: host_status %d, packet status %d\n",
-			host_status, SCpnt->result);
-#endif
-	SCpnt->done = fcmd->done;
-	fcmd->done=NULL;
-	clear_bit(token, fc->scsi_bitmap);
-	fc->scsi_free++;
-	FCD(("Calling scsi_done with %08x\n", SCpnt->result))
-	SCpnt->scsi_done(SCpnt);
-}
-
-void fcp_receive_solicited(fc_channel *fc, int proto, int token, int status, fc_hdr *fch)
-{
-	int magic;
-	FCD(("receive_solicited %d %d %d\n", proto, token, status))
-	switch (proto) {
-	case TYPE_SCSI_FCP:
-		fcp_scsi_receive(fc, token, status, fch); break;
-	case TYPE_EXTENDED_LS:
-	case PROTO_REPORT_AL_MAP:
-		magic = 0;
-		if (fc->ls)
-			magic = ((ls *)(fc->ls))->magic;
-		if (magic == LSMAGIC) {
-			ls *l = (ls *)fc->ls;
-			int i = (token >= l->count) ? token - l->count : token;
-
-			/* Let's be sure */
-			if ((unsigned)i < l->count && l->fcmds[i].fc == fc) {
-				if (proto == TYPE_EXTENDED_LS)
-					fcp_login_done(fc, token, status);
-				else
-					fcp_report_map_done(fc, token, status);
-				break;
-			}
-		}
-		FCD(("fc %p fc->ls %p fc->cmd_slots %p\n", fc, fc->ls, fc->cmd_slots))
-		if (proto == TYPE_EXTENDED_LS && !fc->ls && fc->cmd_slots) {
-			fcp_cmnd *fcmd;
-			
-			fcmd = fc->cmd_slots[token];
-			if (fcmd && fcmd->ls && ((ls *)(fcmd->ls))->magic == LSEMAGIC) {
-				lse *l = (lse *)fcmd->ls;
-				
-				l->status = status;
-				up (&l->sem);
-			}
-		}
-		break;
-	case PROTO_OFFLINE:
-		if (fc->ls && ((lso *)(fc->ls))->magic == LSOMAGIC) {
-			lso *l = (lso *)fc->ls;
-
-			if ((unsigned)token < l->count && l->fcmds[token].fc == fc) {
-				/* Wow, OFFLINE response arrived :) */
-				FCD(("OFFLINE Response arrived\n"))
-				fc->state = FC_STATE_OFFLINE;
-				if (atomic_dec_and_test (&l->todo))
-					up(&l->sem);
-			}
-		}
-		break;
-		
-	default:
-		break;
-	}
-}
-
-void fcp_state_change(fc_channel *fc, int state)
-{
-	FCD(("state_change %d %d\n", state, fc->state))
-	if (state == FC_STATE_ONLINE && fc->state == FC_STATE_MAYBEOFFLINE)
-		fc->state = FC_STATE_UNINITED;
-	else if (state == FC_STATE_ONLINE)
-		printk (KERN_WARNING "%s: state change to ONLINE\n", fc->name);
-	else
-		printk (KERN_ERR "%s: state change to OFFLINE\n", fc->name);
-}
-
-int fcp_initialize(fc_channel *fcchain, int count)
-{
-	fc_channel *fc;
-	fcp_cmnd *fcmd;
-	int i, retry, ret;
-	ls *l;
-
-	FCND(("fcp_inititialize %08lx\n", (long)fcp_init))
-	FCND(("fc_channels %08lx\n", (long)fc_channels))
-	FCND((" SID %d DID %d\n", fcchain->sid, fcchain->did))
-	l = kzalloc(sizeof (ls) + count, GFP_KERNEL);
-	if (!l) {
-		printk ("FC: Cannot allocate memory for initialization\n");
-		return -ENOMEM;
-	}
-	l->magic = LSMAGIC;
-	l->count = count;
-	FCND(("FCP Init for %d channels\n", count))
-	init_MUTEX_LOCKED(&l->sem);
-	init_timer(&l->timer);
-	l->timer.function = fcp_login_timeout;
-	l->timer.data = (unsigned long)l;
-	atomic_set (&l->todo, count);
-	l->logi = kzalloc (count * 3 * sizeof(logi), GFP_KERNEL);
-	l->fcmds = kzalloc (count * sizeof(fcp_cmnd), GFP_KERNEL);
-	if (!l->logi || !l->fcmds) {
-		kfree (l->logi);
-		kfree (l->fcmds);
-		kfree (l);
-		printk ("FC: Cannot allocate DMA memory for initialization\n");
-		return -ENOMEM;
-	}
-	for (fc = fcchain, i = 0; fc && i < count; fc = fc->next, i++) {
-		fc->state = FC_STATE_UNINITED;
-		fc->rst_pkt = NULL;	/* kmalloc when first used */
-	}
-	/* First try if we are in a AL topology */
-	FCND(("Initializing REPORT_MAP packets\n"))
-	for (fc = fcchain, i = 0; fc && i < count; fc = fc->next, i++) {
-		fcmd = l->fcmds + i;
-		fc->login = fcmd;
-		fc->ls = (void *)l;
-		/* Assumes sizeof(fc_al_posmap) < 3 * sizeof(logi), which is true */
-		fcmd->cmd = dma_map_single (fc->dev, l->logi + 3 * i, 3 * sizeof(logi),
-					    DMA_BIDIRECTIONAL);
-		fcmd->proto = PROTO_REPORT_AL_MAP;
-		fcmd->token = i;
-		fcmd->fc = fc;
-	}
-	for (retry = 0; retry < 8; retry++) {
-		int nqueued = 0;
-		FCND(("Sending REPORT_MAP/FLOGI/PLOGI packets\n"))
-		for (fc = fcchain, i = 0; fc && i < count; fc = fc->next, i++) {
-			if (fc->state == FC_STATE_ONLINE || fc->state == FC_STATE_OFFLINE)
-				continue;
-			disable_irq(fc->irq);
-			if (fc->state == FC_STATE_MAYBEOFFLINE) {
-				if (!l->grace[i]) {
-					l->grace[i]++;
-					FCD(("Grace\n"))
-				} else {
-					fc->state = FC_STATE_OFFLINE;
-					enable_irq(fc->irq);
-					dma_unmap_single (fc->dev, l->fcmds[i].cmd, 3 * sizeof(logi), DMA_BIDIRECTIONAL);
-					if (atomic_dec_and_test (&l->todo))
-						goto all_done;
-				}
-			}
-			ret = fc->hw_enque (fc, fc->login);
-			enable_irq(fc->irq);
-			if (!ret) {
-				nqueued++;
-				continue;
-			}
-			if (ret == -ENOSYS && fc->login->proto == PROTO_REPORT_AL_MAP) {
-				/* Oh yes, this card handles Point-to-Point only, so let's try that. */
-				fc_hdr *fch;
-
-				FCD(("SID %d DID %d\n", fc->sid, fc->did))
-				fcmd = l->fcmds + i;
-				dma_unmap_single(fc->dev, fcmd->cmd, 3 * sizeof(logi), DMA_BIDIRECTIONAL);
-				fch = &fcmd->fch;
-				FILL_FCHDR_RCTL_DID(fch, R_CTL_ELS_REQ, FS_FABRIC_F_PORT);
-				FILL_FCHDR_SID(fch, 0);
-				FILL_FCHDR_TYPE_FCTL(fch, TYPE_EXTENDED_LS, F_CTL_FIRST_SEQ | F_CTL_SEQ_INITIATIVE);
-				FILL_FCHDR_SEQ_DF_SEQ(fch, 0, 0, 0);
-				FILL_FCHDR_OXRX(fch, 0xffff, 0xffff);
-				fch->param = 0;
-				l->logi [3 * i].code = LS_FLOGI;
-				fcmd->cmd = dma_map_single (fc->dev, l->logi + 3 * i, 3 * sizeof(logi), DMA_BIDIRECTIONAL);
-				fcmd->rsp = fcmd->cmd + sizeof(logi);
-				fcmd->cmdlen = sizeof(logi);
-				fcmd->rsplen = sizeof(logi);
-				fcmd->data = (dma_addr_t)NULL;
-				fcmd->class = FC_CLASS_SIMPLE;
-				fcmd->proto = TYPE_EXTENDED_LS;
-			} else
-				printk ("FC: Cannot enque FLOGI/REPORT_MAP packet on %s\n", fc->name);
-		}
-		
-		if (nqueued) {
-			l->timer.expires = jiffies + 5 * HZ;
-			add_timer(&l->timer);
-
-			down(&l->sem);
-			if (!atomic_read(&l->todo)) {
-				FCND(("All channels answered in time\n"))
-				break; /* All fc channels have answered us */
-			}
-		}
-	}
-all_done:
-	for (fc = fcchain, i = 0; fc && i < count; fc = fc->next, i++) {
-		fc->ls = NULL;
-		switch (fc->state) {
-		case FC_STATE_ONLINE: break;
-		case FC_STATE_OFFLINE: break;
-		default: dma_unmap_single (fc->dev, l->fcmds[i].cmd, 3 * sizeof(logi), DMA_BIDIRECTIONAL);
-			break;
-		}
-	}
-	del_timer(&l->timer);
-	kfree (l->logi);
-	kfree (l->fcmds);
-	kfree (l);
-	return 0;
-}
-
-int fcp_forceoffline(fc_channel *fcchain, int count)
-{
-	fc_channel *fc;
-	fcp_cmnd *fcmd;
-	int i, ret;
-	lso l;
-
-	memset (&l, 0, sizeof(lso));
-	l.count = count;
-	l.magic = LSOMAGIC;
-	FCND(("FCP Force Offline for %d channels\n", count))
-	init_MUTEX_LOCKED(&l.sem);
-	init_timer(&l.timer);
-	l.timer.function = fcp_login_timeout;
-	l.timer.data = (unsigned long)&l;
-	atomic_set (&l.todo, count);
-	l.fcmds = kzalloc (count * sizeof(fcp_cmnd), GFP_KERNEL);
-	if (!l.fcmds) {
-		printk ("FC: Cannot allocate memory for forcing offline\n");
-		return -ENOMEM;
-	}
-	FCND(("Initializing OFFLINE packets\n"))
-	for (fc = fcchain, i = 0; fc && i < count; fc = fc->next, i++) {
-		fc->state = FC_STATE_UNINITED;
-		fcmd = l.fcmds + i;
-		fc->login = fcmd;
-		fc->ls = (void *)&l;
-		fcmd->did = fc->did;
-		fcmd->class = FC_CLASS_OFFLINE;
-		fcmd->proto = PROTO_OFFLINE;
-		fcmd->token = i;
-		fcmd->fc = fc;
-		disable_irq(fc->irq);
-		ret = fc->hw_enque (fc, fc->login);
-		enable_irq(fc->irq);
-		if (ret) printk ("FC: Cannot enque OFFLINE packet on %s\n", fc->name);
-	}
-		
-	l.timer.expires = jiffies + 5 * HZ;
-	add_timer(&l.timer);
-	down(&l.sem);
-	del_timer(&l.timer);
-	
-	for (fc = fcchain, i = 0; fc && i < count; fc = fc->next, i++)
-		fc->ls = NULL;
-	kfree (l.fcmds);
-	return 0;
-}
-
-int fcp_init(fc_channel *fcchain)
-{
-	fc_channel *fc;
-	int count=0;
-	int ret;
-	
-	for (fc = fcchain; fc; fc = fc->next) {
-		fc->fcp_register = fcp_register;
-		count++;
-	}
-
-	ret = fcp_initialize (fcchain, count);
-	if (ret)
-		return ret;
-		
-	if (!fc_channels)
-		fc_channels = fcchain;
-	else {
-		for (fc = fc_channels; fc->next; fc = fc->next);
-		fc->next = fcchain;
-	}
-	return ret;
-}
-
-void fcp_release(fc_channel *fcchain, int count)  /* count must > 0 */
-{
-	fc_channel *fc;
-	fc_channel *fcx;
-
-	for (fc = fcchain; --count && fc->next; fc = fc->next);
-	if (count) {
-		printk("FC: nothing to release\n");
-		return;
-	}
-	
-	if (fc_channels == fcchain)
-		fc_channels = fc->next;
-	else {
-		for (fcx = fc_channels; fcx->next != fcchain; fcx = fcx->next);
-		fcx->next = fc->next;
-	}
-	fc->next = NULL;
-
-	/*
-	 *  We've just grabbed fcchain out of the fc_channel list
-	 *  and zero-terminated it, while destroying the count.
-	 *
-	 *  Freeing the fc's is the low level driver's responsibility.
-	 */
-}
-
-
-static void fcp_scsi_done(struct scsi_cmnd *SCpnt)
-{
-	if (FCP_CMND(SCpnt)->done)
-		FCP_CMND(SCpnt)->done(SCpnt);
-}
-
-static int fcp_scsi_queue_it(fc_channel *fc, struct scsi_cmnd *SCpnt,
-			     fcp_cmnd *fcmd, int prepare)
-{
-	long i;
-	fcp_cmd *cmd;
-	u32 fcp_cntl;
-	if (prepare) {
-		i = find_first_zero_bit (fc->scsi_bitmap, fc->scsi_bitmap_end);
-		set_bit (i, fc->scsi_bitmap);
-		fcmd->token = i;
-		cmd = fc->scsi_cmd_pool + i;
-
-		if (fc->encode_addr (SCpnt, cmd->fcp_addr, fc, fcmd)) {
-			/* Invalid channel/id/lun and couldn't map it into fcp_addr */
-			clear_bit (i, fc->scsi_bitmap);
-			SCpnt->result = (DID_BAD_TARGET << 16);
-			SCpnt->scsi_done(SCpnt);
-			return 0;
-		}
-		fc->scsi_free--;
-		fc->cmd_slots[fcmd->token] = fcmd;
-
-		if (SCpnt->device->tagged_supported) {
-			if (jiffies - fc->ages[SCpnt->device->channel * fc->targets + SCpnt->device->id] > (5 * 60 * HZ)) {
-				fc->ages[SCpnt->device->channel * fc->targets + SCpnt->device->id] = jiffies;
-				fcp_cntl = FCP_CNTL_QTYPE_ORDERED;
-			} else
-				fcp_cntl = FCP_CNTL_QTYPE_SIMPLE;
-		} else
-			fcp_cntl = FCP_CNTL_QTYPE_UNTAGGED;
-
-		if (!scsi_bufflen(SCpnt)) {
-			cmd->fcp_cntl = fcp_cntl;
-			fcmd->data = (dma_addr_t)NULL;
-		} else {
-			struct scatterlist *sg;
-			int nents;
-
-			switch (SCpnt->cmnd[0]) {
-			case WRITE_6:
-			case WRITE_10:
-			case WRITE_12:
-				cmd->fcp_cntl = (FCP_CNTL_WRITE | fcp_cntl); break;
-			default:
-				cmd->fcp_cntl = (FCP_CNTL_READ | fcp_cntl); break;
-			}
-
-			sg = scsi_sglist(SCpnt);
-			nents = dma_map_sg(fc->dev, sg, scsi_sg_count(SCpnt),
-					   SCpnt->sc_data_direction);
-			fcmd->data = sg_dma_address(sg);
-			cmd->fcp_data_len = sg_dma_len(sg);
-		}
-		memcpy (cmd->fcp_cdb, SCpnt->cmnd, SCpnt->cmd_len);
-		memset (cmd->fcp_cdb+SCpnt->cmd_len, 0, sizeof(cmd->fcp_cdb)-SCpnt->cmd_len);
-		FCD(("XXX: %04x.%04x.%04x.%04x - %08x%08x%08x\n", cmd->fcp_addr[0], cmd->fcp_addr[1], cmd->fcp_addr[2], cmd->fcp_addr[3], *(u32 *)SCpnt->cmnd, *(u32 *)(SCpnt->cmnd+4), *(u32 *)(SCpnt->cmnd+8)))
-	}
-	FCD(("Trying to enque %p\n", fcmd))
-	if (!fc->scsi_que) {
-		if (!fc->hw_enque (fc, fcmd)) {
-			FCD(("hw_enque succeeded for %p\n", fcmd))
-			return 0;
-		}
-	}
-	FCD(("Putting into que1 %p\n", fcmd))
-	fcp_scsi_insert_queue (fc, fcmd);
-	return 0;
-}
-
-int fcp_scsi_queuecommand(struct scsi_cmnd *SCpnt,
-			  void (* done)(struct scsi_cmnd *))
-{
-	fcp_cmnd *fcmd = FCP_CMND(SCpnt);
-	fc_channel *fc = FC_SCMND(SCpnt);
-	
-	FCD(("Entering SCSI queuecommand %p\n", fcmd))
-	if (SCpnt->done != fcp_scsi_done) {
-		fcmd->done = SCpnt->done;
-		SCpnt->done = fcp_scsi_done;
-		SCpnt->scsi_done = done;
-		fcmd->proto = TYPE_SCSI_FCP;
-		if (!fc->scsi_free) {
-			FCD(("FC: !scsi_free, putting cmd on ML queue\n"))
-#if (FCP_SCSI_USE_NEW_EH_CODE == 0)
-			printk("fcp_scsi_queue_command: queue full, losing cmd, bad\n");
-#endif
-			return 1;
-		}
-		return fcp_scsi_queue_it(fc, SCpnt, fcmd, 1);
-	}
-	return fcp_scsi_queue_it(fc, SCpnt, fcmd, 0);
-}
-
-void fcp_queue_empty(fc_channel *fc)
-{
-	fcp_cmnd *fcmd;
-	
-	FCD(("Queue empty\n"))
-	while ((fcmd = fc->scsi_que)) {
-		/* The hw told us we can try again queue some packet */
-		if (fc->hw_enque (fc, fcmd))
-			break;
-		fcp_scsi_remove_queue (fc, fcmd);
-	}
-}
-
-int fcp_scsi_abort(struct scsi_cmnd *SCpnt)
-{
-	/* Internal bookkeeping only. Lose 1 cmd_slots slot. */