From 1ecd3902c6e16c2445165b872c49e73770b72da7 Mon Sep 17 00:00:00 2001 From: Matthew Wilcox Date: Mon, 15 Oct 2007 23:05:07 -0600 Subject: [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 Acked-by: David S. Miller Signed-off-by: James Bottomley --- drivers/scsi/pluto.c | 349 --------------------------------------------------- 1 file changed, 349 deletions(-) delete mode 100644 drivers/scsi/pluto.c (limited to 'drivers/scsi/pluto.c') 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 -#include -#include -#include -#include -#include -#include -#include -#include -#include -#ifdef CONFIG_KMOD -#include -#endif - -#include - -#include "scsi.h" -#include -#include "../fc4/fcp_impl.h" -#include "pluto.h" - -#include - -#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"); - -- cgit v1.2.3