aboutsummaryrefslogtreecommitdiff
path: root/drivers/scsi/pluto.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/scsi/pluto.c')
-rw-r--r--drivers/scsi/pluto.c349
1 files changed, 0 insertions, 349 deletions
diff --git a/drivers/scsi/pluto.c b/drivers/scsi/pluto.c
deleted file mode 100644
index 0363c1cd68c..00000000000
--- 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");
-
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-20 12:38:16 +0000