[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>

1 files changed, 0 insertions, 349 deletions

diff --git a/drivers/scsi/pluto.c b/drivers/scsi/pluto.c
deleted file mode 100644
index 0363c1cd68c1..000000000000
--- a/drivers/scsi/pluto.c
+++ /dev/null
@@ -1,349 +0,0 @@
-/* pluto.c: SparcSTORAGE Array SCSI host adapter driver.
- *
- * Copyright (C) 1997,1998,1999 Jakub Jelinek (jj@sunsite.mff.cuni.cz)
- *
- */
-
-#include <linux/completion.h>
-#include <linux/kernel.h>
-#include <linux/delay.h>
-#include <linux/types.h>
-#include <linux/string.h>
-#include <linux/slab.h>
-#include <linux/blkdev.h>
-#include <linux/proc_fs.h>
-#include <linux/stat.h>
-#include <linux/init.h>
-#ifdef CONFIG_KMOD
-#include <linux/kmod.h>
-#endif
-
-#include <asm/irq.h>
-
-#include "scsi.h"
-#include <scsi/scsi_host.h>
-#include "../fc4/fcp_impl.h"
-#include "pluto.h"
-
-#include <linux/module.h>
-
-#define RQ_SCSI_BUSY		0xffff
-#define RQ_SCSI_DONE		0xfffe
-
-/* #define PLUTO_DEBUG */
-
-#define pluto_printk printk ("PLUTO %s: ", fc->name); printk
-
-#ifdef PLUTO_DEBUG
-#define PLD(x)  pluto_printk x;
-#define PLND(x) printk ("PLUTO: "); printk x;
-#else
-#define PLD(x)
-#define PLND(x)
-#endif
-
-static struct ctrl_inquiry {
-	struct Scsi_Host host;
-	struct pluto pluto;
-	Scsi_Cmnd cmd;
-	char inquiry[256];
-	fc_channel *fc;
-} *fcs __initdata;
-static int fcscount __initdata = 0;
-static atomic_t fcss __initdata = ATOMIC_INIT(0);
-static DECLARE_COMPLETION(fc_detect_complete);
-
-static int pluto_encode_addr(Scsi_Cmnd *SCpnt, u16 *addr, fc_channel *fc, fcp_cmnd *fcmd);
-
-static void __init pluto_detect_done(Scsi_Cmnd *SCpnt)
-{
-	/* Do nothing */
-}
-
-static void __init pluto_detect_scsi_done(Scsi_Cmnd *SCpnt)
-{
-	PLND(("Detect done %08lx\n", (long)SCpnt))
-	if (atomic_dec_and_test (&fcss))
-		complete(&fc_detect_complete);
-}
-
-int pluto_slave_configure(struct scsi_device *device)
-{
-	int depth_to_use;
-
-	if (device->tagged_supported)
-		depth_to_use = /* 254 */ 8;
-	else
-		depth_to_use = 2;
-
-	scsi_adjust_queue_depth(device,
-				(device->tagged_supported ?
-				 MSG_SIMPLE_TAG : 0),
-				depth_to_use);
-
-	return 0;
-}
-
-/* Detect all SSAs attached to the machine.
-   To be fast, do it on all online FC channels at the same time. */
-int __init pluto_detect(struct scsi_host_template *tpnt)
-{
-	int i, retry, nplutos;
-	fc_channel *fc;
-	struct scsi_device dev;
-
-	tpnt->proc_name = "pluto";
-	fcscount = 0;
-	for_each_online_fc_channel(fc) {
-		if (!fc->posmap)
-			fcscount++;
-	}
-	PLND(("%d channels online\n", fcscount))
-	if (!fcscount) {
-#if defined(MODULE) && defined(CONFIG_FC4_SOC_MODULE) && defined(CONFIG_KMOD)
-		request_module("soc");
-		
-		for_each_online_fc_channel(fc) {
-			if (!fc->posmap)
-				fcscount++;
-		}
-		if (!fcscount)
-#endif
-			return 0;
-	}
-	fcs = kcalloc(fcscount, sizeof (struct ctrl_inquiry), GFP_DMA);
-	if (!fcs) {
-		printk ("PLUTO: Not enough memory to probe\n");
-		return 0;
-	}
-	
-	memset (&dev, 0, sizeof(dev));
-	atomic_set (&fcss, fcscount);
-	
-	i = 0;
-	for_each_online_fc_channel(fc) {
-		Scsi_Cmnd *SCpnt;
-		struct Scsi_Host *host;
-		struct pluto *pluto;
-
-		if (i == fcscount) break;
-		if (fc->posmap) continue;
-		
-		PLD(("trying to find SSA\n"))
-
-		/* If this is already registered to some other SCSI host, then it cannot be pluto */
-		if (fc->scsi_name[0]) continue;
-		memcpy (fc->scsi_name, "SSA", 4);
-		
-		fcs[i].fc = fc;
-		
-		fc->can_queue = PLUTO_CAN_QUEUE;
-		fc->rsp_size = 64;
-		fc->encode_addr = pluto_encode_addr;
-		
-		fc->fcp_register(fc, TYPE_SCSI_FCP, 0);
-	
-		SCpnt = &(fcs[i].cmd);
-		host = &(fcs[i].host);
-		pluto = (struct pluto *)host->hostdata;
-		
-		pluto->fc = fc;
-	
-		SCpnt->cmnd[0] = INQUIRY;
-		SCpnt->cmnd[4] = 255;
-		
-		/* FC layer requires this, so that SCpnt->device->tagged_supported is initially 0 */
-		SCpnt->device = &dev;
-		dev.host = host;
-		
-		SCpnt->cmd_len = COMMAND_SIZE(INQUIRY);
-	
-		SCpnt->request->cmd_flags &= ~REQ_STARTED;
-		
-		SCpnt->request_bufflen = 256;
-		SCpnt->request_buffer = fcs[i].inquiry;
-		PLD(("set up %d %08lx\n", i, (long)SCpnt))
-		i++;
-	}
-	
-	for (retry = 0; retry < 5; retry++) {
-		for (i = 0; i < fcscount; i++) {
-			if (!fcs[i].fc) break;
-			if (!(fcs[i].cmd.request->cmd_flags & REQ_STARTED)) {
-				fcs[i].cmd.request->cmd_flags |= REQ_STARTED;
-				disable_irq(fcs[i].fc->irq);
-				PLND(("queuecommand %d %d\n", retry, i))
-				fcp_scsi_queuecommand (&(fcs[i].cmd), 
-					pluto_detect_scsi_done);
-				enable_irq(fcs[i].fc->irq);
-			}
-		}
-	    
-		wait_for_completion_timeout(&fc_detect_complete, 10 * HZ);
-		PLND(("Woken up\n"))
-		if (!atomic_read(&fcss))
-			break; /* All fc channels have answered us */
-	}
-
-	PLND(("Finished search\n"))
-	for (i = 0, nplutos = 0; i < fcscount; i++) {
-		Scsi_Cmnd *SCpnt;
-		
-		if (!(fc = fcs[i].fc)) break;
-	
-		SCpnt = &(fcs[i].cmd);
-		
-		/* Let FC mid-level free allocated resources */
-		pluto_detect_scsi_done(SCpnt);
-		
-		if (!SCpnt->result) {
-			struct pluto_inquiry *inq;
-			struct pluto *pluto;
-			struct Scsi_Host *host;
-			
-			inq = (struct pluto_inquiry *)fcs[i].inquiry;
-
-			if ((inq->dtype & 0x1f) == TYPE_PROCESSOR &&
-			    !strncmp (inq->vendor_id, "SUN", 3) &&
-			    !strncmp (inq->product_id, "SSA", 3)) {
-				char *p;
-				long *ages;
-				
-				ages = kcalloc((inq->channels + 1) * inq->targets, sizeof(long), GFP_KERNEL);
-				if (!ages) continue;
-				
-				host = scsi_register (tpnt, sizeof (struct pluto));
-				if(!host)
-				{
-					kfree(ages);
-					continue;
-				}
-				
-				if (!try_module_get(fc->module)) {
-					kfree(ages);
-					scsi_unregister(host);
-					continue;
-				}
-
-				nplutos++;
-				
-				pluto = (struct pluto *)host->hostdata;
-				
-				host->max_id = inq->targets;
-				host->max_channel = inq->channels;
-				host->irq = fc->irq;
-
-				fc->channels = inq->channels + 1;
-				fc->targets = inq->targets;
-				fc->ages = ages;
-				
-				pluto->fc = fc;
-				memcpy (pluto->rev_str, inq->revision, 4);
-				pluto->rev_str[4] = 0;
-				p = strchr (pluto->rev_str, ' ');
-				if (p) *p = 0;
-				memcpy (pluto->fw_rev_str, inq->fw_revision, 4);
-				pluto->fw_rev_str[4] = 0;
-				p = strchr (pluto->fw_rev_str, ' ');
-				if (p) *p = 0;
-				memcpy (pluto->serial_str, inq->serial, 12);
-				pluto->serial_str[12] = 0;
-				p = strchr (pluto->serial_str, ' ');
-				if (p) *p = 0;
-				
-				PLD(("Found SSA rev %s fw rev %s serial %s %dx%d\n", pluto->rev_str, pluto->fw_rev_str, pluto->serial_str, host->max_channel, host->max_id))
-			} else
-				fc->fcp_register(fc, TYPE_SCSI_FCP, 1);
-		} else
-			fc->fcp_register(fc, TYPE_SCSI_FCP, 1);
-	}
-	kfree(fcs);
-	if (nplutos)
-		printk ("PLUTO: Total of %d SparcSTORAGE Arrays found\n", nplutos);
-	return nplutos;
-}
-
-int pluto_release(struct Scsi_Host *host)
-{
-	struct pluto *pluto = (struct pluto *)host->hostdata;
-	fc_channel *fc = pluto->fc;
-
-	module_put(fc->module);
-	
-	fc->fcp_register(fc, TYPE_SCSI_FCP, 1);
-	PLND((" releasing pluto.\n"));
-	kfree (fc->ages);
-	PLND(("released pluto!\n"));
-	return 0;
-}
-
-const char *pluto_info(struct Scsi_Host *host)
-{
-	static char buf[128], *p;
-	struct pluto *pluto = (struct pluto *) host->hostdata;
-
-	sprintf(buf, "SUN SparcSTORAGE Array %s fw %s serial %s %dx%d on %s",
-		pluto->rev_str, pluto->fw_rev_str, pluto->serial_str,
-		host->max_channel, host->max_id, pluto->fc->name);
-#ifdef __sparc__
-	p = strchr(buf, 0);
-	sprintf(p, " PROM node %x", pluto->fc->dev->prom_node);
-#endif	
-	return buf;
-}
-
-/* SSA uses this FC4S addressing:
-   switch (addr[0])
-   {
-   case 0: CONTROLLER - All of addr[1]..addr[3] has to be 0
-   case 1: SINGLE DISK - addr[1] channel, addr[2] id, addr[3] 0
-   case 2: DISK GROUP - ???
-   }
-   
-   So that SCSI mid-layer can access to these, we reserve
-   channel 0 id 0 lun 0 for CONTROLLER
-   and channels 1 .. max_channel are normal single disks.
- */
-static int pluto_encode_addr(Scsi_Cmnd *SCpnt, u16 *addr, fc_channel *fc, fcp_cmnd *fcmd)
-{
-	PLND(("encode addr %d %d %d\n", SCpnt->device->channel, SCpnt->device->id, SCpnt->cmnd[1] & 0xe0))
-	/* We don't support LUNs - neither does SSA :) */
-	if (SCpnt->cmnd[1] & 0xe0)
-		return -EINVAL;
-	if (!SCpnt->device->channel) {
-		if (SCpnt->device->id)
-			return -EINVAL;
-		memset (addr, 0, 4 * sizeof(u16));
-	} else {
-		addr[0] = 1;
-		addr[1] = SCpnt->device->channel - 1;
-		addr[2] = SCpnt->device->id;
-		addr[3] = 0;
-	}
-	/* We're Point-to-Point, so target it to the default DID */
-	fcmd->did = fc->did;
-	PLND(("trying %04x%04x%04x%04x\n", addr[0], addr[1], addr[2], addr[3]))
-	return 0;
-}
-
-static struct scsi_host_template driver_template = {
-	.name			= "Sparc Storage Array 100/200",
-	.detect			= pluto_detect,
-	.release		= pluto_release,
-	.info			= pluto_info,
-	.queuecommand		= fcp_scsi_queuecommand,
-	.slave_configure	= pluto_slave_configure,
-	.can_queue		= PLUTO_CAN_QUEUE,
-	.this_id		= -1,
-	.sg_tablesize		= 1,
-	.cmd_per_lun		= 1,
-	.use_clustering		= ENABLE_CLUSTERING,
-	.eh_abort_handler	= fcp_scsi_abort,
-	.eh_device_reset_handler = fcp_scsi_dev_reset,
-	.eh_host_reset_handler	= fcp_scsi_host_reset,
-};
-
-#include "scsi_module.c"
-
-MODULE_LICENSE("GPL");
-