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df561f6688
Replace the existing /* fall through */ comments and its variants with the new pseudo-keyword macro fallthrough[1]. Also, remove unnecessary fall-through markings when it is the case. [1] https://www.kernel.org/doc/html/v5.7/process/deprecated.html?highlight=fallthrough#implicit-switch-case-fall-through Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
3912 lines
127 KiB
C
3912 lines
127 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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/*
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Linux Driver for BusLogic MultiMaster and FlashPoint SCSI Host Adapters
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Copyright 1995-1998 by Leonard N. Zubkoff <lnz@dandelion.com>
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The author respectfully requests that any modifications to this software be
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sent directly to him for evaluation and testing.
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Special thanks to Wayne Yen, Jin-Lon Hon, and Alex Win of BusLogic, whose
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advice has been invaluable, to David Gentzel, for writing the original Linux
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BusLogic driver, and to Paul Gortmaker, for being such a dedicated test site.
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Finally, special thanks to Mylex/BusLogic for making the FlashPoint SCCB
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Manager available as freely redistributable source code.
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*/
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#define blogic_drvr_version "2.1.17"
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#define blogic_drvr_date "12 September 2013"
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#include <linux/module.h>
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#include <linux/init.h>
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#include <linux/interrupt.h>
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#include <linux/types.h>
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#include <linux/blkdev.h>
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#include <linux/delay.h>
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#include <linux/ioport.h>
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#include <linux/mm.h>
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#include <linux/stat.h>
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#include <linux/pci.h>
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#include <linux/spinlock.h>
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#include <linux/jiffies.h>
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#include <linux/dma-mapping.h>
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#include <linux/slab.h>
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#include <linux/msdos_partition.h>
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#include <scsi/scsicam.h>
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#include <asm/dma.h>
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#include <asm/io.h>
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#include <scsi/scsi.h>
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#include <scsi/scsi_cmnd.h>
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#include <scsi/scsi_device.h>
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#include <scsi/scsi_host.h>
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#include <scsi/scsi_tcq.h>
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#include "BusLogic.h"
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#include "FlashPoint.c"
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#ifndef FAILURE
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#define FAILURE (-1)
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#endif
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static struct scsi_host_template blogic_template;
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/*
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blogic_drvr_options_count is a count of the number of BusLogic Driver
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Options specifications provided via the Linux Kernel Command Line or via
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the Loadable Kernel Module Installation Facility.
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*/
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static int blogic_drvr_options_count;
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/*
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blogic_drvr_options is an array of Driver Options structures representing
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BusLogic Driver Options specifications provided via the Linux Kernel Command
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Line or via the Loadable Kernel Module Installation Facility.
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*/
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static struct blogic_drvr_options blogic_drvr_options[BLOGIC_MAX_ADAPTERS];
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/*
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BusLogic can be assigned a string by insmod.
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*/
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MODULE_LICENSE("GPL");
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#ifdef MODULE
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static char *BusLogic;
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module_param(BusLogic, charp, 0);
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#endif
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/*
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blogic_probe_options is a set of Probe Options to be applied across
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all BusLogic Host Adapters.
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*/
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static struct blogic_probe_options blogic_probe_options;
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/*
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blogic_global_options is a set of Global Options to be applied across
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all BusLogic Host Adapters.
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*/
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static struct blogic_global_options blogic_global_options;
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static LIST_HEAD(blogic_host_list);
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/*
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blogic_probeinfo_count is the number of entries in blogic_probeinfo_list.
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*/
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static int blogic_probeinfo_count;
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/*
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blogic_probeinfo_list is the list of I/O Addresses and Bus Probe Information
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to be checked for potential BusLogic Host Adapters. It is initialized by
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interrogating the PCI Configuration Space on PCI machines as well as from the
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list of standard BusLogic I/O Addresses.
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*/
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static struct blogic_probeinfo *blogic_probeinfo_list;
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/*
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blogic_cmd_failure_reason holds a string identifying the reason why a
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call to blogic_cmd failed. It is only non-NULL when blogic_cmd
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returns a failure code.
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*/
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static char *blogic_cmd_failure_reason;
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/*
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blogic_announce_drvr announces the Driver Version and Date, Author's
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Name, Copyright Notice, and Electronic Mail Address.
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*/
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static void blogic_announce_drvr(struct blogic_adapter *adapter)
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{
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blogic_announce("***** BusLogic SCSI Driver Version " blogic_drvr_version " of " blogic_drvr_date " *****\n", adapter);
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blogic_announce("Copyright 1995-1998 by Leonard N. Zubkoff <lnz@dandelion.com>\n", adapter);
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}
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/*
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blogic_drvr_info returns the Host Adapter Name to identify this SCSI
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Driver and Host Adapter.
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*/
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static const char *blogic_drvr_info(struct Scsi_Host *host)
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{
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struct blogic_adapter *adapter =
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(struct blogic_adapter *) host->hostdata;
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return adapter->full_model;
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}
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/*
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blogic_init_ccbs initializes a group of Command Control Blocks (CCBs)
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for Host Adapter from the blk_size bytes located at blk_pointer. The newly
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created CCBs are added to Host Adapter's free list.
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*/
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static void blogic_init_ccbs(struct blogic_adapter *adapter, void *blk_pointer,
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int blk_size, dma_addr_t blkp)
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{
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struct blogic_ccb *ccb = (struct blogic_ccb *) blk_pointer;
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unsigned int offset = 0;
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memset(blk_pointer, 0, blk_size);
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ccb->allocgrp_head = blkp;
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ccb->allocgrp_size = blk_size;
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while ((blk_size -= sizeof(struct blogic_ccb)) >= 0) {
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ccb->status = BLOGIC_CCB_FREE;
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ccb->adapter = adapter;
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ccb->dma_handle = (u32) blkp + offset;
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if (blogic_flashpoint_type(adapter)) {
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ccb->callback = blogic_qcompleted_ccb;
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ccb->base_addr = adapter->fpinfo.base_addr;
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}
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ccb->next = adapter->free_ccbs;
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ccb->next_all = adapter->all_ccbs;
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adapter->free_ccbs = ccb;
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adapter->all_ccbs = ccb;
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adapter->alloc_ccbs++;
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ccb++;
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offset += sizeof(struct blogic_ccb);
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}
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}
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/*
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blogic_create_initccbs allocates the initial CCBs for Host Adapter.
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*/
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static bool __init blogic_create_initccbs(struct blogic_adapter *adapter)
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{
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int blk_size = BLOGIC_CCB_GRP_ALLOCSIZE * sizeof(struct blogic_ccb);
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void *blk_pointer;
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dma_addr_t blkp;
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while (adapter->alloc_ccbs < adapter->initccbs) {
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blk_pointer = dma_alloc_coherent(&adapter->pci_device->dev,
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blk_size, &blkp, GFP_KERNEL);
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if (blk_pointer == NULL) {
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blogic_err("UNABLE TO ALLOCATE CCB GROUP - DETACHING\n",
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adapter);
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return false;
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}
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blogic_init_ccbs(adapter, blk_pointer, blk_size, blkp);
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}
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return true;
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}
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/*
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blogic_destroy_ccbs deallocates the CCBs for Host Adapter.
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*/
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static void blogic_destroy_ccbs(struct blogic_adapter *adapter)
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{
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struct blogic_ccb *next_ccb = adapter->all_ccbs, *ccb, *lastccb = NULL;
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adapter->all_ccbs = NULL;
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adapter->free_ccbs = NULL;
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while ((ccb = next_ccb) != NULL) {
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next_ccb = ccb->next_all;
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if (ccb->allocgrp_head) {
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if (lastccb)
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dma_free_coherent(&adapter->pci_device->dev,
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lastccb->allocgrp_size, lastccb,
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lastccb->allocgrp_head);
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lastccb = ccb;
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}
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}
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if (lastccb)
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dma_free_coherent(&adapter->pci_device->dev,
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lastccb->allocgrp_size, lastccb,
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lastccb->allocgrp_head);
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}
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/*
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blogic_create_addlccbs allocates Additional CCBs for Host Adapter. If
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allocation fails and there are no remaining CCBs available, the Driver Queue
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Depth is decreased to a known safe value to avoid potential deadlocks when
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multiple host adapters share the same IRQ Channel.
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*/
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static void blogic_create_addlccbs(struct blogic_adapter *adapter,
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int addl_ccbs, bool print_success)
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{
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int blk_size = BLOGIC_CCB_GRP_ALLOCSIZE * sizeof(struct blogic_ccb);
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int prev_alloc = adapter->alloc_ccbs;
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void *blk_pointer;
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dma_addr_t blkp;
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if (addl_ccbs <= 0)
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return;
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while (adapter->alloc_ccbs - prev_alloc < addl_ccbs) {
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blk_pointer = dma_alloc_coherent(&adapter->pci_device->dev,
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blk_size, &blkp, GFP_KERNEL);
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if (blk_pointer == NULL)
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break;
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blogic_init_ccbs(adapter, blk_pointer, blk_size, blkp);
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}
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if (adapter->alloc_ccbs > prev_alloc) {
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if (print_success)
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blogic_notice("Allocated %d additional CCBs (total now %d)\n", adapter, adapter->alloc_ccbs - prev_alloc, adapter->alloc_ccbs);
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return;
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}
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blogic_notice("Failed to allocate additional CCBs\n", adapter);
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if (adapter->drvr_qdepth > adapter->alloc_ccbs - adapter->tgt_count) {
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adapter->drvr_qdepth = adapter->alloc_ccbs - adapter->tgt_count;
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adapter->scsi_host->can_queue = adapter->drvr_qdepth;
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}
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}
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/*
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blogic_alloc_ccb allocates a CCB from Host Adapter's free list,
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allocating more memory from the Kernel if necessary. The Host Adapter's
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Lock should already have been acquired by the caller.
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*/
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static struct blogic_ccb *blogic_alloc_ccb(struct blogic_adapter *adapter)
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{
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static unsigned long serial;
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struct blogic_ccb *ccb;
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ccb = adapter->free_ccbs;
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if (ccb != NULL) {
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ccb->serial = ++serial;
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adapter->free_ccbs = ccb->next;
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ccb->next = NULL;
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if (adapter->free_ccbs == NULL)
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blogic_create_addlccbs(adapter, adapter->inc_ccbs,
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true);
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return ccb;
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}
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blogic_create_addlccbs(adapter, adapter->inc_ccbs, true);
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ccb = adapter->free_ccbs;
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if (ccb == NULL)
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return NULL;
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ccb->serial = ++serial;
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adapter->free_ccbs = ccb->next;
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ccb->next = NULL;
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return ccb;
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}
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/*
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blogic_dealloc_ccb deallocates a CCB, returning it to the Host Adapter's
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free list. The Host Adapter's Lock should already have been acquired by the
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caller.
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*/
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static void blogic_dealloc_ccb(struct blogic_ccb *ccb, int dma_unmap)
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{
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struct blogic_adapter *adapter = ccb->adapter;
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if (ccb->command != NULL)
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scsi_dma_unmap(ccb->command);
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if (dma_unmap)
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dma_unmap_single(&adapter->pci_device->dev, ccb->sensedata,
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ccb->sense_datalen, DMA_FROM_DEVICE);
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ccb->command = NULL;
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ccb->status = BLOGIC_CCB_FREE;
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ccb->next = adapter->free_ccbs;
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adapter->free_ccbs = ccb;
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}
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/*
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blogic_cmd sends the command opcode to adapter, optionally
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providing paramlen bytes of param and receiving at most
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replylen bytes of reply; any excess reply data is received but
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discarded.
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On success, this function returns the number of reply bytes read from
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the Host Adapter (including any discarded data); on failure, it returns
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-1 if the command was invalid, or -2 if a timeout occurred.
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blogic_cmd is called exclusively during host adapter detection and
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initialization, so performance and latency are not critical, and exclusive
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access to the Host Adapter hardware is assumed. Once the host adapter and
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driver are initialized, the only Host Adapter command that is issued is the
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single byte Execute Mailbox Command operation code, which does not require
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waiting for the Host Adapter Ready bit to be set in the Status Register.
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*/
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static int blogic_cmd(struct blogic_adapter *adapter, enum blogic_opcode opcode,
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void *param, int paramlen, void *reply, int replylen)
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{
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unsigned char *param_p = (unsigned char *) param;
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unsigned char *reply_p = (unsigned char *) reply;
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union blogic_stat_reg statusreg;
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union blogic_int_reg intreg;
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unsigned long processor_flag = 0;
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int reply_b = 0, result;
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long timeout;
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/*
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Clear out the Reply Data if provided.
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*/
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if (replylen > 0)
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memset(reply, 0, replylen);
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/*
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If the IRQ Channel has not yet been acquired, then interrupts
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must be disabled while issuing host adapter commands since a
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Command Complete interrupt could occur if the IRQ Channel was
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previously enabled by another BusLogic Host Adapter or another
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driver sharing the same IRQ Channel.
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*/
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if (!adapter->irq_acquired)
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local_irq_save(processor_flag);
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/*
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Wait for the Host Adapter Ready bit to be set and the
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Command/Parameter Register Busy bit to be reset in the Status
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Register.
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*/
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timeout = 10000;
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while (--timeout >= 0) {
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statusreg.all = blogic_rdstatus(adapter);
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if (statusreg.sr.adapter_ready && !statusreg.sr.cmd_param_busy)
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break;
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udelay(100);
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}
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if (timeout < 0) {
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blogic_cmd_failure_reason =
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"Timeout waiting for Host Adapter Ready";
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result = -2;
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goto done;
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}
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/*
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Write the opcode to the Command/Parameter Register.
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*/
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adapter->adapter_cmd_complete = false;
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blogic_setcmdparam(adapter, opcode);
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/*
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Write any additional Parameter Bytes.
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*/
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timeout = 10000;
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while (paramlen > 0 && --timeout >= 0) {
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/*
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Wait 100 microseconds to give the Host Adapter enough
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time to determine whether the last value written to the
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Command/Parameter Register was valid or not. If the
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Command Complete bit is set in the Interrupt Register,
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then the Command Invalid bit in the Status Register will
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be reset if the Operation Code or Parameter was valid
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and the command has completed, or set if the Operation
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Code or Parameter was invalid. If the Data In Register
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Ready bit is set in the Status Register, then the
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Operation Code was valid, and data is waiting to be read
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back from the Host Adapter. Otherwise, wait for the
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Command/Parameter Register Busy bit in the Status
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Register to be reset.
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*/
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udelay(100);
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intreg.all = blogic_rdint(adapter);
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statusreg.all = blogic_rdstatus(adapter);
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if (intreg.ir.cmd_complete)
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break;
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if (adapter->adapter_cmd_complete)
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break;
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if (statusreg.sr.datain_ready)
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break;
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if (statusreg.sr.cmd_param_busy)
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continue;
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blogic_setcmdparam(adapter, *param_p++);
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paramlen--;
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}
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if (timeout < 0) {
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blogic_cmd_failure_reason =
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"Timeout waiting for Parameter Acceptance";
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result = -2;
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goto done;
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}
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/*
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The Modify I/O Address command does not cause a Command Complete
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Interrupt.
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*/
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if (opcode == BLOGIC_MOD_IOADDR) {
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statusreg.all = blogic_rdstatus(adapter);
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if (statusreg.sr.cmd_invalid) {
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blogic_cmd_failure_reason =
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"Modify I/O Address Invalid";
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result = -1;
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goto done;
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}
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if (blogic_global_options.trace_config)
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blogic_notice("blogic_cmd(%02X) Status = %02X: (Modify I/O Address)\n", adapter, opcode, statusreg.all);
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result = 0;
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goto done;
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}
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/*
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Select an appropriate timeout value for awaiting command completion.
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*/
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switch (opcode) {
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case BLOGIC_INQ_DEV0TO7:
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case BLOGIC_INQ_DEV8TO15:
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case BLOGIC_INQ_DEV:
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/* Approximately 60 seconds. */
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timeout = 60 * 10000;
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break;
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default:
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/* Approximately 1 second. */
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timeout = 10000;
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break;
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}
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/*
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Receive any Reply Bytes, waiting for either the Command
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Complete bit to be set in the Interrupt Register, or for the
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Interrupt Handler to set the Host Adapter Command Completed
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bit in the Host Adapter structure.
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*/
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while (--timeout >= 0) {
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intreg.all = blogic_rdint(adapter);
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statusreg.all = blogic_rdstatus(adapter);
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if (intreg.ir.cmd_complete)
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break;
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if (adapter->adapter_cmd_complete)
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break;
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if (statusreg.sr.datain_ready) {
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if (++reply_b <= replylen)
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*reply_p++ = blogic_rddatain(adapter);
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else
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blogic_rddatain(adapter);
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}
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if (opcode == BLOGIC_FETCH_LOCALRAM &&
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statusreg.sr.adapter_ready)
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break;
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udelay(100);
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}
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if (timeout < 0) {
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blogic_cmd_failure_reason =
|
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"Timeout waiting for Command Complete";
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result = -2;
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goto done;
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}
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/*
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Clear any pending Command Complete Interrupt.
|
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*/
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blogic_intreset(adapter);
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/*
|
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Provide tracing information if requested.
|
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*/
|
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if (blogic_global_options.trace_config) {
|
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int i;
|
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blogic_notice("blogic_cmd(%02X) Status = %02X: %2d ==> %2d:",
|
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adapter, opcode, statusreg.all, replylen,
|
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reply_b);
|
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if (replylen > reply_b)
|
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replylen = reply_b;
|
|
for (i = 0; i < replylen; i++)
|
|
blogic_notice(" %02X", adapter,
|
|
((unsigned char *) reply)[i]);
|
|
blogic_notice("\n", adapter);
|
|
}
|
|
/*
|
|
Process Command Invalid conditions.
|
|
*/
|
|
if (statusreg.sr.cmd_invalid) {
|
|
/*
|
|
Some early BusLogic Host Adapters may not recover
|
|
properly from a Command Invalid condition, so if this
|
|
appears to be the case, a Soft Reset is issued to the
|
|
Host Adapter. Potentially invalid commands are never
|
|
attempted after Mailbox Initialization is performed,
|
|
so there should be no Host Adapter state lost by a
|
|
Soft Reset in response to a Command Invalid condition.
|
|
*/
|
|
udelay(1000);
|
|
statusreg.all = blogic_rdstatus(adapter);
|
|
if (statusreg.sr.cmd_invalid || statusreg.sr.rsvd ||
|
|
statusreg.sr.datain_ready ||
|
|
statusreg.sr.cmd_param_busy ||
|
|
!statusreg.sr.adapter_ready ||
|
|
!statusreg.sr.init_reqd ||
|
|
statusreg.sr.diag_active ||
|
|
statusreg.sr.diag_failed) {
|
|
blogic_softreset(adapter);
|
|
udelay(1000);
|
|
}
|
|
blogic_cmd_failure_reason = "Command Invalid";
|
|
result = -1;
|
|
goto done;
|
|
}
|
|
/*
|
|
Handle Excess Parameters Supplied conditions.
|
|
*/
|
|
if (paramlen > 0) {
|
|
blogic_cmd_failure_reason = "Excess Parameters Supplied";
|
|
result = -1;
|
|
goto done;
|
|
}
|
|
/*
|
|
Indicate the command completed successfully.
|
|
*/
|
|
blogic_cmd_failure_reason = NULL;
|
|
result = reply_b;
|
|
/*
|
|
Restore the interrupt status if necessary and return.
|
|
*/
|
|
done:
|
|
if (!adapter->irq_acquired)
|
|
local_irq_restore(processor_flag);
|
|
return result;
|
|
}
|
|
|
|
|
|
/*
|
|
blogic_add_probeaddr_isa appends a single ISA I/O Address to the list
|
|
of I/O Address and Bus Probe Information to be checked for potential BusLogic
|
|
Host Adapters.
|
|
*/
|
|
|
|
static void __init blogic_add_probeaddr_isa(unsigned long io_addr)
|
|
{
|
|
struct blogic_probeinfo *probeinfo;
|
|
if (blogic_probeinfo_count >= BLOGIC_MAX_ADAPTERS)
|
|
return;
|
|
probeinfo = &blogic_probeinfo_list[blogic_probeinfo_count++];
|
|
probeinfo->adapter_type = BLOGIC_MULTIMASTER;
|
|
probeinfo->adapter_bus_type = BLOGIC_ISA_BUS;
|
|
probeinfo->io_addr = io_addr;
|
|
probeinfo->pci_device = NULL;
|
|
}
|
|
|
|
|
|
/*
|
|
blogic_init_probeinfo_isa initializes the list of I/O Address and
|
|
Bus Probe Information to be checked for potential BusLogic SCSI Host Adapters
|
|
only from the list of standard BusLogic MultiMaster ISA I/O Addresses.
|
|
*/
|
|
|
|
static void __init blogic_init_probeinfo_isa(struct blogic_adapter *adapter)
|
|
{
|
|
/*
|
|
If BusLogic Driver Options specifications requested that ISA
|
|
Bus Probes be inhibited, do not proceed further.
|
|
*/
|
|
if (blogic_probe_options.noprobe_isa)
|
|
return;
|
|
/*
|
|
Append the list of standard BusLogic MultiMaster ISA I/O Addresses.
|
|
*/
|
|
if (!blogic_probe_options.limited_isa || blogic_probe_options.probe330)
|
|
blogic_add_probeaddr_isa(0x330);
|
|
if (!blogic_probe_options.limited_isa || blogic_probe_options.probe334)
|
|
blogic_add_probeaddr_isa(0x334);
|
|
if (!blogic_probe_options.limited_isa || blogic_probe_options.probe230)
|
|
blogic_add_probeaddr_isa(0x230);
|
|
if (!blogic_probe_options.limited_isa || blogic_probe_options.probe234)
|
|
blogic_add_probeaddr_isa(0x234);
|
|
if (!blogic_probe_options.limited_isa || blogic_probe_options.probe130)
|
|
blogic_add_probeaddr_isa(0x130);
|
|
if (!blogic_probe_options.limited_isa || blogic_probe_options.probe134)
|
|
blogic_add_probeaddr_isa(0x134);
|
|
}
|
|
|
|
|
|
#ifdef CONFIG_PCI
|
|
|
|
|
|
/*
|
|
blogic_sort_probeinfo sorts a section of blogic_probeinfo_list in order
|
|
of increasing PCI Bus and Device Number.
|
|
*/
|
|
|
|
static void __init blogic_sort_probeinfo(struct blogic_probeinfo
|
|
*probeinfo_list, int probeinfo_cnt)
|
|
{
|
|
int last_exchange = probeinfo_cnt - 1, bound, j;
|
|
|
|
while (last_exchange > 0) {
|
|
bound = last_exchange;
|
|
last_exchange = 0;
|
|
for (j = 0; j < bound; j++) {
|
|
struct blogic_probeinfo *probeinfo1 =
|
|
&probeinfo_list[j];
|
|
struct blogic_probeinfo *probeinfo2 =
|
|
&probeinfo_list[j + 1];
|
|
if (probeinfo1->bus > probeinfo2->bus ||
|
|
(probeinfo1->bus == probeinfo2->bus &&
|
|
(probeinfo1->dev > probeinfo2->dev))) {
|
|
struct blogic_probeinfo tmp_probeinfo;
|
|
|
|
memcpy(&tmp_probeinfo, probeinfo1,
|
|
sizeof(struct blogic_probeinfo));
|
|
memcpy(probeinfo1, probeinfo2,
|
|
sizeof(struct blogic_probeinfo));
|
|
memcpy(probeinfo2, &tmp_probeinfo,
|
|
sizeof(struct blogic_probeinfo));
|
|
last_exchange = j;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
/*
|
|
blogic_init_mm_probeinfo initializes the list of I/O Address
|
|
and Bus Probe Information to be checked for potential BusLogic MultiMaster
|
|
SCSI Host Adapters by interrogating the PCI Configuration Space on PCI
|
|
machines as well as from the list of standard BusLogic MultiMaster ISA
|
|
I/O Addresses. It returns the number of PCI MultiMaster Host Adapters found.
|
|
*/
|
|
|
|
static int __init blogic_init_mm_probeinfo(struct blogic_adapter *adapter)
|
|
{
|
|
struct blogic_probeinfo *pr_probeinfo =
|
|
&blogic_probeinfo_list[blogic_probeinfo_count];
|
|
int nonpr_mmindex = blogic_probeinfo_count + 1;
|
|
int nonpr_mmcount = 0, mmcount = 0;
|
|
bool force_scan_order = false;
|
|
bool force_scan_order_checked = false;
|
|
bool addr_seen[6];
|
|
struct pci_dev *pci_device = NULL;
|
|
int i;
|
|
if (blogic_probeinfo_count >= BLOGIC_MAX_ADAPTERS)
|
|
return 0;
|
|
blogic_probeinfo_count++;
|
|
for (i = 0; i < 6; i++)
|
|
addr_seen[i] = false;
|
|
/*
|
|
Iterate over the MultiMaster PCI Host Adapters. For each
|
|
enumerated host adapter, determine whether its ISA Compatible
|
|
I/O Port is enabled and if so, whether it is assigned the
|
|
Primary I/O Address. A host adapter that is assigned the
|
|
Primary I/O Address will always be the preferred boot device.
|
|
The MultiMaster BIOS will first recognize a host adapter at
|
|
the Primary I/O Address, then any other PCI host adapters,
|
|
and finally any host adapters located at the remaining
|
|
standard ISA I/O Addresses. When a PCI host adapter is found
|
|
with its ISA Compatible I/O Port enabled, a command is issued
|
|
to disable the ISA Compatible I/O Port, and it is noted that the
|
|
particular standard ISA I/O Address need not be probed.
|
|
*/
|
|
pr_probeinfo->io_addr = 0;
|
|
while ((pci_device = pci_get_device(PCI_VENDOR_ID_BUSLOGIC,
|
|
PCI_DEVICE_ID_BUSLOGIC_MULTIMASTER,
|
|
pci_device)) != NULL) {
|
|
struct blogic_adapter *host_adapter = adapter;
|
|
struct blogic_adapter_info adapter_info;
|
|
enum blogic_isa_ioport mod_ioaddr_req;
|
|
unsigned char bus;
|
|
unsigned char device;
|
|
unsigned int irq_ch;
|
|
unsigned long base_addr0;
|
|
unsigned long base_addr1;
|
|
unsigned long io_addr;
|
|
unsigned long pci_addr;
|
|
|
|
if (pci_enable_device(pci_device))
|
|
continue;
|
|
|
|
if (dma_set_mask(&pci_device->dev, DMA_BIT_MASK(32)))
|
|
continue;
|
|
|
|
bus = pci_device->bus->number;
|
|
device = pci_device->devfn >> 3;
|
|
irq_ch = pci_device->irq;
|
|
io_addr = base_addr0 = pci_resource_start(pci_device, 0);
|
|
pci_addr = base_addr1 = pci_resource_start(pci_device, 1);
|
|
|
|
if (pci_resource_flags(pci_device, 0) & IORESOURCE_MEM) {
|
|
blogic_err("BusLogic: Base Address0 0x%lX not I/O for MultiMaster Host Adapter\n", NULL, base_addr0);
|
|
blogic_err("at PCI Bus %d Device %d I/O Address 0x%lX\n", NULL, bus, device, io_addr);
|
|
continue;
|
|
}
|
|
if (pci_resource_flags(pci_device, 1) & IORESOURCE_IO) {
|
|
blogic_err("BusLogic: Base Address1 0x%lX not Memory for MultiMaster Host Adapter\n", NULL, base_addr1);
|
|
blogic_err("at PCI Bus %d Device %d PCI Address 0x%lX\n", NULL, bus, device, pci_addr);
|
|
continue;
|
|
}
|
|
if (irq_ch == 0) {
|
|
blogic_err("BusLogic: IRQ Channel %d invalid for MultiMaster Host Adapter\n", NULL, irq_ch);
|
|
blogic_err("at PCI Bus %d Device %d I/O Address 0x%lX\n", NULL, bus, device, io_addr);
|
|
continue;
|
|
}
|
|
if (blogic_global_options.trace_probe) {
|
|
blogic_notice("BusLogic: PCI MultiMaster Host Adapter detected at\n", NULL);
|
|
blogic_notice("BusLogic: PCI Bus %d Device %d I/O Address 0x%lX PCI Address 0x%lX\n", NULL, bus, device, io_addr, pci_addr);
|
|
}
|
|
/*
|
|
Issue the Inquire PCI Host Adapter Information command to determine
|
|
the ISA Compatible I/O Port. If the ISA Compatible I/O Port is
|
|
known and enabled, note that the particular Standard ISA I/O
|
|
Address should not be probed.
|
|
*/
|
|
host_adapter->io_addr = io_addr;
|
|
blogic_intreset(host_adapter);
|
|
if (blogic_cmd(host_adapter, BLOGIC_INQ_PCI_INFO, NULL, 0,
|
|
&adapter_info, sizeof(adapter_info)) ==
|
|
sizeof(adapter_info)) {
|
|
if (adapter_info.isa_port < 6)
|
|
addr_seen[adapter_info.isa_port] = true;
|
|
} else
|
|
adapter_info.isa_port = BLOGIC_IO_DISABLE;
|
|
/*
|
|
Issue the Modify I/O Address command to disable the
|
|
ISA Compatible I/O Port. On PCI Host Adapters, the
|
|
Modify I/O Address command allows modification of the
|
|
ISA compatible I/O Address that the Host Adapter
|
|
responds to; it does not affect the PCI compliant
|
|
I/O Address assigned at system initialization.
|
|
*/
|
|
mod_ioaddr_req = BLOGIC_IO_DISABLE;
|
|
blogic_cmd(host_adapter, BLOGIC_MOD_IOADDR, &mod_ioaddr_req,
|
|
sizeof(mod_ioaddr_req), NULL, 0);
|
|
/*
|
|
For the first MultiMaster Host Adapter enumerated,
|
|
issue the Fetch Host Adapter Local RAM command to read
|
|
byte 45 of the AutoSCSI area, for the setting of the
|
|
"Use Bus And Device # For PCI Scanning Seq." option.
|
|
Issue the Inquire Board ID command since this option is
|
|
only valid for the BT-948/958/958D.
|
|
*/
|
|
if (!force_scan_order_checked) {
|
|
struct blogic_fetch_localram fetch_localram;
|
|
struct blogic_autoscsi_byte45 autoscsi_byte45;
|
|
struct blogic_board_id id;
|
|
|
|
fetch_localram.offset = BLOGIC_AUTOSCSI_BASE + 45;
|
|
fetch_localram.count = sizeof(autoscsi_byte45);
|
|
blogic_cmd(host_adapter, BLOGIC_FETCH_LOCALRAM,
|
|
&fetch_localram, sizeof(fetch_localram),
|
|
&autoscsi_byte45,
|
|
sizeof(autoscsi_byte45));
|
|
blogic_cmd(host_adapter, BLOGIC_GET_BOARD_ID, NULL, 0,
|
|
&id, sizeof(id));
|
|
if (id.fw_ver_digit1 == '5')
|
|
force_scan_order =
|
|
autoscsi_byte45.force_scan_order;
|
|
force_scan_order_checked = true;
|
|
}
|
|
/*
|
|
Determine whether this MultiMaster Host Adapter has its
|
|
ISA Compatible I/O Port enabled and is assigned the
|
|
Primary I/O Address. If it does, then it is the Primary
|
|
MultiMaster Host Adapter and must be recognized first.
|
|
If it does not, then it is added to the list for probing
|
|
after any Primary MultiMaster Host Adapter is probed.
|
|
*/
|
|
if (adapter_info.isa_port == BLOGIC_IO_330) {
|
|
pr_probeinfo->adapter_type = BLOGIC_MULTIMASTER;
|
|
pr_probeinfo->adapter_bus_type = BLOGIC_PCI_BUS;
|
|
pr_probeinfo->io_addr = io_addr;
|
|
pr_probeinfo->pci_addr = pci_addr;
|
|
pr_probeinfo->bus = bus;
|
|
pr_probeinfo->dev = device;
|
|
pr_probeinfo->irq_ch = irq_ch;
|
|
pr_probeinfo->pci_device = pci_dev_get(pci_device);
|
|
mmcount++;
|
|
} else if (blogic_probeinfo_count < BLOGIC_MAX_ADAPTERS) {
|
|
struct blogic_probeinfo *probeinfo =
|
|
&blogic_probeinfo_list[blogic_probeinfo_count++];
|
|
probeinfo->adapter_type = BLOGIC_MULTIMASTER;
|
|
probeinfo->adapter_bus_type = BLOGIC_PCI_BUS;
|
|
probeinfo->io_addr = io_addr;
|
|
probeinfo->pci_addr = pci_addr;
|
|
probeinfo->bus = bus;
|
|
probeinfo->dev = device;
|
|
probeinfo->irq_ch = irq_ch;
|
|
probeinfo->pci_device = pci_dev_get(pci_device);
|
|
nonpr_mmcount++;
|
|
mmcount++;
|
|
} else
|
|
blogic_warn("BusLogic: Too many Host Adapters detected\n", NULL);
|
|
}
|
|
/*
|
|
If the AutoSCSI "Use Bus And Device # For PCI Scanning Seq."
|
|
option is ON for the first enumerated MultiMaster Host Adapter,
|
|
and if that host adapter is a BT-948/958/958D, then the
|
|
MultiMaster BIOS will recognize MultiMaster Host Adapters in
|
|
the order of increasing PCI Bus and Device Number. In that case,
|
|
sort the probe information into the same order the BIOS uses.
|
|
If this option is OFF, then the MultiMaster BIOS will recognize
|
|
MultiMaster Host Adapters in the order they are enumerated by
|
|
the PCI BIOS, and hence no sorting is necessary.
|
|
*/
|
|
if (force_scan_order)
|
|
blogic_sort_probeinfo(&blogic_probeinfo_list[nonpr_mmindex],
|
|
nonpr_mmcount);
|
|
/*
|
|
If no PCI MultiMaster Host Adapter is assigned the Primary
|
|
I/O Address, then the Primary I/O Address must be probed
|
|
explicitly before any PCI host adapters are probed.
|
|
*/
|
|
if (!blogic_probe_options.noprobe_isa)
|
|
if (pr_probeinfo->io_addr == 0 &&
|
|
(!blogic_probe_options.limited_isa ||
|
|
blogic_probe_options.probe330)) {
|
|
pr_probeinfo->adapter_type = BLOGIC_MULTIMASTER;
|
|
pr_probeinfo->adapter_bus_type = BLOGIC_ISA_BUS;
|
|
pr_probeinfo->io_addr = 0x330;
|
|
}
|
|
/*
|
|
Append the list of standard BusLogic MultiMaster ISA I/O Addresses,
|
|
omitting the Primary I/O Address which has already been handled.
|
|
*/
|
|
if (!blogic_probe_options.noprobe_isa) {
|
|
if (!addr_seen[1] &&
|
|
(!blogic_probe_options.limited_isa ||
|
|
blogic_probe_options.probe334))
|
|
blogic_add_probeaddr_isa(0x334);
|
|
if (!addr_seen[2] &&
|
|
(!blogic_probe_options.limited_isa ||
|
|
blogic_probe_options.probe230))
|
|
blogic_add_probeaddr_isa(0x230);
|
|
if (!addr_seen[3] &&
|
|
(!blogic_probe_options.limited_isa ||
|
|
blogic_probe_options.probe234))
|
|
blogic_add_probeaddr_isa(0x234);
|
|
if (!addr_seen[4] &&
|
|
(!blogic_probe_options.limited_isa ||
|
|
blogic_probe_options.probe130))
|
|
blogic_add_probeaddr_isa(0x130);
|
|
if (!addr_seen[5] &&
|
|
(!blogic_probe_options.limited_isa ||
|
|
blogic_probe_options.probe134))
|
|
blogic_add_probeaddr_isa(0x134);
|
|
}
|
|
/*
|
|
Iterate over the older non-compliant MultiMaster PCI Host Adapters,
|
|
noting the PCI bus location and assigned IRQ Channel.
|
|
*/
|
|
pci_device = NULL;
|
|
while ((pci_device = pci_get_device(PCI_VENDOR_ID_BUSLOGIC,
|
|
PCI_DEVICE_ID_BUSLOGIC_MULTIMASTER_NC,
|
|
pci_device)) != NULL) {
|
|
unsigned char bus;
|
|
unsigned char device;
|
|
unsigned int irq_ch;
|
|
unsigned long io_addr;
|
|
|
|
if (pci_enable_device(pci_device))
|
|
continue;
|
|
|
|
if (dma_set_mask(&pci_device->dev, DMA_BIT_MASK(32)))
|
|
continue;
|
|
|
|
bus = pci_device->bus->number;
|
|
device = pci_device->devfn >> 3;
|
|
irq_ch = pci_device->irq;
|
|
io_addr = pci_resource_start(pci_device, 0);
|
|
|
|
if (io_addr == 0 || irq_ch == 0)
|
|
continue;
|
|
for (i = 0; i < blogic_probeinfo_count; i++) {
|
|
struct blogic_probeinfo *probeinfo =
|
|
&blogic_probeinfo_list[i];
|
|
if (probeinfo->io_addr == io_addr &&
|
|
probeinfo->adapter_type == BLOGIC_MULTIMASTER) {
|
|
probeinfo->adapter_bus_type = BLOGIC_PCI_BUS;
|
|
probeinfo->pci_addr = 0;
|
|
probeinfo->bus = bus;
|
|
probeinfo->dev = device;
|
|
probeinfo->irq_ch = irq_ch;
|
|
probeinfo->pci_device = pci_dev_get(pci_device);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
return mmcount;
|
|
}
|
|
|
|
|
|
/*
|
|
blogic_init_fp_probeinfo initializes the list of I/O Address
|
|
and Bus Probe Information to be checked for potential BusLogic FlashPoint
|
|
Host Adapters by interrogating the PCI Configuration Space. It returns the
|
|
number of FlashPoint Host Adapters found.
|
|
*/
|
|
|
|
static int __init blogic_init_fp_probeinfo(struct blogic_adapter *adapter)
|
|
{
|
|
int fpindex = blogic_probeinfo_count, fpcount = 0;
|
|
struct pci_dev *pci_device = NULL;
|
|
/*
|
|
Interrogate PCI Configuration Space for any FlashPoint Host Adapters.
|
|
*/
|
|
while ((pci_device = pci_get_device(PCI_VENDOR_ID_BUSLOGIC,
|
|
PCI_DEVICE_ID_BUSLOGIC_FLASHPOINT,
|
|
pci_device)) != NULL) {
|
|
unsigned char bus;
|
|
unsigned char device;
|
|
unsigned int irq_ch;
|
|
unsigned long base_addr0;
|
|
unsigned long base_addr1;
|
|
unsigned long io_addr;
|
|
unsigned long pci_addr;
|
|
|
|
if (pci_enable_device(pci_device))
|
|
continue;
|
|
|
|
if (dma_set_mask(&pci_device->dev, DMA_BIT_MASK(32)))
|
|
continue;
|
|
|
|
bus = pci_device->bus->number;
|
|
device = pci_device->devfn >> 3;
|
|
irq_ch = pci_device->irq;
|
|
io_addr = base_addr0 = pci_resource_start(pci_device, 0);
|
|
pci_addr = base_addr1 = pci_resource_start(pci_device, 1);
|
|
#ifdef CONFIG_SCSI_FLASHPOINT
|
|
if (pci_resource_flags(pci_device, 0) & IORESOURCE_MEM) {
|
|
blogic_err("BusLogic: Base Address0 0x%lX not I/O for FlashPoint Host Adapter\n", NULL, base_addr0);
|
|
blogic_err("at PCI Bus %d Device %d I/O Address 0x%lX\n", NULL, bus, device, io_addr);
|
|
continue;
|
|
}
|
|
if (pci_resource_flags(pci_device, 1) & IORESOURCE_IO) {
|
|
blogic_err("BusLogic: Base Address1 0x%lX not Memory for FlashPoint Host Adapter\n", NULL, base_addr1);
|
|
blogic_err("at PCI Bus %d Device %d PCI Address 0x%lX\n", NULL, bus, device, pci_addr);
|
|
continue;
|
|
}
|
|
if (irq_ch == 0) {
|
|
blogic_err("BusLogic: IRQ Channel %d invalid for FlashPoint Host Adapter\n", NULL, irq_ch);
|
|
blogic_err("at PCI Bus %d Device %d I/O Address 0x%lX\n", NULL, bus, device, io_addr);
|
|
continue;
|
|
}
|
|
if (blogic_global_options.trace_probe) {
|
|
blogic_notice("BusLogic: FlashPoint Host Adapter detected at\n", NULL);
|
|
blogic_notice("BusLogic: PCI Bus %d Device %d I/O Address 0x%lX PCI Address 0x%lX\n", NULL, bus, device, io_addr, pci_addr);
|
|
}
|
|
if (blogic_probeinfo_count < BLOGIC_MAX_ADAPTERS) {
|
|
struct blogic_probeinfo *probeinfo =
|
|
&blogic_probeinfo_list[blogic_probeinfo_count++];
|
|
probeinfo->adapter_type = BLOGIC_FLASHPOINT;
|
|
probeinfo->adapter_bus_type = BLOGIC_PCI_BUS;
|
|
probeinfo->io_addr = io_addr;
|
|
probeinfo->pci_addr = pci_addr;
|
|
probeinfo->bus = bus;
|
|
probeinfo->dev = device;
|
|
probeinfo->irq_ch = irq_ch;
|
|
probeinfo->pci_device = pci_dev_get(pci_device);
|
|
fpcount++;
|
|
} else
|
|
blogic_warn("BusLogic: Too many Host Adapters detected\n", NULL);
|
|
#else
|
|
blogic_err("BusLogic: FlashPoint Host Adapter detected at PCI Bus %d Device %d\n", NULL, bus, device);
|
|
blogic_err("BusLogic: I/O Address 0x%lX PCI Address 0x%lX, irq %d, but FlashPoint\n", NULL, io_addr, pci_addr, irq_ch);
|
|
blogic_err("BusLogic: support was omitted in this kernel configuration.\n", NULL);
|
|
#endif
|
|
}
|
|
/*
|
|
The FlashPoint BIOS will scan for FlashPoint Host Adapters in the order of
|
|
increasing PCI Bus and Device Number, so sort the probe information into
|
|
the same order the BIOS uses.
|
|
*/
|
|
blogic_sort_probeinfo(&blogic_probeinfo_list[fpindex], fpcount);
|
|
return fpcount;
|
|
}
|
|
|
|
|
|
/*
|
|
blogic_init_probeinfo_list initializes the list of I/O Address and Bus
|
|
Probe Information to be checked for potential BusLogic SCSI Host Adapters by
|
|
interrogating the PCI Configuration Space on PCI machines as well as from the
|
|
list of standard BusLogic MultiMaster ISA I/O Addresses. By default, if both
|
|
FlashPoint and PCI MultiMaster Host Adapters are present, this driver will
|
|
probe for FlashPoint Host Adapters first unless the BIOS primary disk is
|
|
controlled by the first PCI MultiMaster Host Adapter, in which case
|
|
MultiMaster Host Adapters will be probed first. The BusLogic Driver Options
|
|
specifications "MultiMasterFirst" and "FlashPointFirst" can be used to force
|
|
a particular probe order.
|
|
*/
|
|
|
|
static void __init blogic_init_probeinfo_list(struct blogic_adapter *adapter)
|
|
{
|
|
/*
|
|
If a PCI BIOS is present, interrogate it for MultiMaster and
|
|
FlashPoint Host Adapters; otherwise, default to the standard
|
|
ISA MultiMaster probe.
|
|
*/
|
|
if (!blogic_probe_options.noprobe_pci) {
|
|
if (blogic_probe_options.multimaster_first) {
|
|
blogic_init_mm_probeinfo(adapter);
|
|
blogic_init_fp_probeinfo(adapter);
|
|
} else if (blogic_probe_options.flashpoint_first) {
|
|
blogic_init_fp_probeinfo(adapter);
|
|
blogic_init_mm_probeinfo(adapter);
|
|
} else {
|
|
int fpcount = blogic_init_fp_probeinfo(adapter);
|
|
int mmcount = blogic_init_mm_probeinfo(adapter);
|
|
if (fpcount > 0 && mmcount > 0) {
|
|
struct blogic_probeinfo *probeinfo =
|
|
&blogic_probeinfo_list[fpcount];
|
|
struct blogic_adapter *myadapter = adapter;
|
|
struct blogic_fetch_localram fetch_localram;
|
|
struct blogic_bios_drvmap d0_mapbyte;
|
|
|
|
while (probeinfo->adapter_bus_type !=
|
|
BLOGIC_PCI_BUS)
|
|
probeinfo++;
|
|
myadapter->io_addr = probeinfo->io_addr;
|
|
fetch_localram.offset =
|
|
BLOGIC_BIOS_BASE + BLOGIC_BIOS_DRVMAP;
|
|
fetch_localram.count = sizeof(d0_mapbyte);
|
|
blogic_cmd(myadapter, BLOGIC_FETCH_LOCALRAM,
|
|
&fetch_localram,
|
|
sizeof(fetch_localram),
|
|
&d0_mapbyte,
|
|
sizeof(d0_mapbyte));
|
|
/*
|
|
If the Map Byte for BIOS Drive 0 indicates
|
|
that BIOS Drive 0 is controlled by this
|
|
PCI MultiMaster Host Adapter, then reverse
|
|
the probe order so that MultiMaster Host
|
|
Adapters are probed before FlashPoint Host
|
|
Adapters.
|
|
*/
|
|
if (d0_mapbyte.diskgeom != BLOGIC_BIOS_NODISK) {
|
|
struct blogic_probeinfo saved_probeinfo[BLOGIC_MAX_ADAPTERS];
|
|
int mmcount = blogic_probeinfo_count - fpcount;
|
|
|
|
memcpy(saved_probeinfo,
|
|
blogic_probeinfo_list,
|
|
blogic_probeinfo_count * sizeof(struct blogic_probeinfo));
|
|
memcpy(&blogic_probeinfo_list[0],
|
|
&saved_probeinfo[fpcount],
|
|
mmcount * sizeof(struct blogic_probeinfo));
|
|
memcpy(&blogic_probeinfo_list[mmcount],
|
|
&saved_probeinfo[0],
|
|
fpcount * sizeof(struct blogic_probeinfo));
|
|
}
|
|
}
|
|
}
|
|
} else {
|
|
blogic_init_probeinfo_isa(adapter);
|
|
}
|
|
}
|
|
|
|
|
|
#else
|
|
#define blogic_init_probeinfo_list(adapter) \
|
|
blogic_init_probeinfo_isa(adapter)
|
|
#endif /* CONFIG_PCI */
|
|
|
|
|
|
/*
|
|
blogic_failure prints a standardized error message, and then returns false.
|
|
*/
|
|
|
|
static bool blogic_failure(struct blogic_adapter *adapter, char *msg)
|
|
{
|
|
blogic_announce_drvr(adapter);
|
|
if (adapter->adapter_bus_type == BLOGIC_PCI_BUS) {
|
|
blogic_err("While configuring BusLogic PCI Host Adapter at\n",
|
|
adapter);
|
|
blogic_err("Bus %d Device %d I/O Address 0x%lX PCI Address 0x%lX:\n", adapter, adapter->bus, adapter->dev, adapter->io_addr, adapter->pci_addr);
|
|
} else
|
|
blogic_err("While configuring BusLogic Host Adapter at I/O Address 0x%lX:\n", adapter, adapter->io_addr);
|
|
blogic_err("%s FAILED - DETACHING\n", adapter, msg);
|
|
if (blogic_cmd_failure_reason != NULL)
|
|
blogic_err("ADDITIONAL FAILURE INFO - %s\n", adapter,
|
|
blogic_cmd_failure_reason);
|
|
return false;
|
|
}
|
|
|
|
|
|
/*
|
|
blogic_probe probes for a BusLogic Host Adapter.
|
|
*/
|
|
|
|
static bool __init blogic_probe(struct blogic_adapter *adapter)
|
|
{
|
|
union blogic_stat_reg statusreg;
|
|
union blogic_int_reg intreg;
|
|
union blogic_geo_reg georeg;
|
|
/*
|
|
FlashPoint Host Adapters are Probed by the FlashPoint SCCB Manager.
|
|
*/
|
|
if (blogic_flashpoint_type(adapter)) {
|
|
struct fpoint_info *fpinfo = &adapter->fpinfo;
|
|
fpinfo->base_addr = (u32) adapter->io_addr;
|
|
fpinfo->irq_ch = adapter->irq_ch;
|
|
fpinfo->present = false;
|
|
if (!(FlashPoint_ProbeHostAdapter(fpinfo) == 0 &&
|
|
fpinfo->present)) {
|
|
blogic_err("BusLogic: FlashPoint Host Adapter detected at PCI Bus %d Device %d\n", adapter, adapter->bus, adapter->dev);
|
|
blogic_err("BusLogic: I/O Address 0x%lX PCI Address 0x%lX, but FlashPoint\n", adapter, adapter->io_addr, adapter->pci_addr);
|
|
blogic_err("BusLogic: Probe Function failed to validate it.\n", adapter);
|
|
return false;
|
|
}
|
|
if (blogic_global_options.trace_probe)
|
|
blogic_notice("BusLogic_Probe(0x%lX): FlashPoint Found\n", adapter, adapter->io_addr);
|
|
/*
|
|
Indicate the Host Adapter Probe completed successfully.
|
|
*/
|
|
return true;
|
|
}
|
|
/*
|
|
Read the Status, Interrupt, and Geometry Registers to test if there are I/O
|
|
ports that respond, and to check the values to determine if they are from a
|
|
BusLogic Host Adapter. A nonexistent I/O port will return 0xFF, in which
|
|
case there is definitely no BusLogic Host Adapter at this base I/O Address.
|
|
The test here is a subset of that used by the BusLogic Host Adapter BIOS.
|
|
*/
|
|
statusreg.all = blogic_rdstatus(adapter);
|
|
intreg.all = blogic_rdint(adapter);
|
|
georeg.all = blogic_rdgeom(adapter);
|
|
if (blogic_global_options.trace_probe)
|
|
blogic_notice("BusLogic_Probe(0x%lX): Status 0x%02X, Interrupt 0x%02X, Geometry 0x%02X\n", adapter, adapter->io_addr, statusreg.all, intreg.all, georeg.all);
|
|
if (statusreg.all == 0 || statusreg.sr.diag_active ||
|
|
statusreg.sr.cmd_param_busy || statusreg.sr.rsvd ||
|
|
statusreg.sr.cmd_invalid || intreg.ir.rsvd != 0)
|
|
return false;
|
|
/*
|
|
Check the undocumented Geometry Register to test if there is
|
|
an I/O port that responded. Adaptec Host Adapters do not
|
|
implement the Geometry Register, so this test helps serve to
|
|
avoid incorrectly recognizing an Adaptec 1542A or 1542B as a
|
|
BusLogic. Unfortunately, the Adaptec 1542C series does respond
|
|
to the Geometry Register I/O port, but it will be rejected
|
|
later when the Inquire Extended Setup Information command is
|
|
issued in blogic_checkadapter. The AMI FastDisk Host Adapter
|
|
is a BusLogic clone that implements the same interface as
|
|
earlier BusLogic Host Adapters, including the undocumented
|
|
commands, and is therefore supported by this driver. However,
|
|
the AMI FastDisk always returns 0x00 upon reading the Geometry
|
|
Register, so the extended translation option should always be
|
|
left disabled on the AMI FastDisk.
|
|
*/
|
|
if (georeg.all == 0xFF)
|
|
return false;
|
|
/*
|
|
Indicate the Host Adapter Probe completed successfully.
|
|
*/
|
|
return true;
|
|
}
|
|
|
|
|
|
/*
|
|
blogic_hwreset issues a Hardware Reset to the Host Adapter
|
|
and waits for Host Adapter Diagnostics to complete. If hard_reset is true, a
|
|
Hard Reset is performed which also initiates a SCSI Bus Reset. Otherwise, a
|
|
Soft Reset is performed which only resets the Host Adapter without forcing a
|
|
SCSI Bus Reset.
|
|
*/
|
|
|
|
static bool blogic_hwreset(struct blogic_adapter *adapter, bool hard_reset)
|
|
{
|
|
union blogic_stat_reg statusreg;
|
|
int timeout;
|
|
/*
|
|
FlashPoint Host Adapters are Hard Reset by the FlashPoint
|
|
SCCB Manager.
|
|
*/
|
|
if (blogic_flashpoint_type(adapter)) {
|
|
struct fpoint_info *fpinfo = &adapter->fpinfo;
|
|
fpinfo->softreset = !hard_reset;
|
|
fpinfo->report_underrun = true;
|
|
adapter->cardhandle =
|
|
FlashPoint_HardwareResetHostAdapter(fpinfo);
|
|
if (adapter->cardhandle == (void *)FPOINT_BADCARD_HANDLE)
|
|
return false;
|
|
/*
|
|
Indicate the Host Adapter Hard Reset completed successfully.
|
|
*/
|
|
return true;
|
|
}
|
|
/*
|
|
Issue a Hard Reset or Soft Reset Command to the Host Adapter.
|
|
The Host Adapter should respond by setting Diagnostic Active in
|
|
the Status Register.
|
|
*/
|
|
if (hard_reset)
|
|
blogic_hardreset(adapter);
|
|
else
|
|
blogic_softreset(adapter);
|
|
/*
|
|
Wait until Diagnostic Active is set in the Status Register.
|
|
*/
|
|
timeout = 5 * 10000;
|
|
while (--timeout >= 0) {
|
|
statusreg.all = blogic_rdstatus(adapter);
|
|
if (statusreg.sr.diag_active)
|
|
break;
|
|
udelay(100);
|
|
}
|
|
if (blogic_global_options.trace_hw_reset)
|
|
blogic_notice("BusLogic_HardwareReset(0x%lX): Diagnostic Active, Status 0x%02X\n", adapter, adapter->io_addr, statusreg.all);
|
|
if (timeout < 0)
|
|
return false;
|
|
/*
|
|
Wait 100 microseconds to allow completion of any initial diagnostic
|
|
activity which might leave the contents of the Status Register
|
|
unpredictable.
|
|
*/
|
|
udelay(100);
|
|
/*
|
|
Wait until Diagnostic Active is reset in the Status Register.
|
|
*/
|
|
timeout = 10 * 10000;
|
|
while (--timeout >= 0) {
|
|
statusreg.all = blogic_rdstatus(adapter);
|
|
if (!statusreg.sr.diag_active)
|
|
break;
|
|
udelay(100);
|
|
}
|
|
if (blogic_global_options.trace_hw_reset)
|
|
blogic_notice("BusLogic_HardwareReset(0x%lX): Diagnostic Completed, Status 0x%02X\n", adapter, adapter->io_addr, statusreg.all);
|
|
if (timeout < 0)
|
|
return false;
|
|
/*
|
|
Wait until at least one of the Diagnostic Failure, Host Adapter
|
|
Ready, or Data In Register Ready bits is set in the Status Register.
|
|
*/
|
|
timeout = 10000;
|
|
while (--timeout >= 0) {
|
|
statusreg.all = blogic_rdstatus(adapter);
|
|
if (statusreg.sr.diag_failed || statusreg.sr.adapter_ready ||
|
|
statusreg.sr.datain_ready)
|
|
break;
|
|
udelay(100);
|
|
}
|
|
if (blogic_global_options.trace_hw_reset)
|
|
blogic_notice("BusLogic_HardwareReset(0x%lX): Host Adapter Ready, Status 0x%02X\n", adapter, adapter->io_addr, statusreg.all);
|
|
if (timeout < 0)
|
|
return false;
|
|
/*
|
|
If Diagnostic Failure is set or Host Adapter Ready is reset,
|
|
then an error occurred during the Host Adapter diagnostics.
|
|
If Data In Register Ready is set, then there is an Error Code
|
|
available.
|
|
*/
|
|
if (statusreg.sr.diag_failed || !statusreg.sr.adapter_ready) {
|
|
blogic_cmd_failure_reason = NULL;
|
|
blogic_failure(adapter, "HARD RESET DIAGNOSTICS");
|
|
blogic_err("HOST ADAPTER STATUS REGISTER = %02X\n", adapter,
|
|
statusreg.all);
|
|
if (statusreg.sr.datain_ready)
|
|
blogic_err("HOST ADAPTER ERROR CODE = %d\n", adapter,
|
|
blogic_rddatain(adapter));
|
|
return false;
|
|
}
|
|
/*
|
|
Indicate the Host Adapter Hard Reset completed successfully.
|
|
*/
|
|
return true;
|
|
}
|
|
|
|
|
|
/*
|
|
blogic_checkadapter checks to be sure this really is a BusLogic
|
|
Host Adapter.
|
|
*/
|
|
|
|
static bool __init blogic_checkadapter(struct blogic_adapter *adapter)
|
|
{
|
|
struct blogic_ext_setup ext_setupinfo;
|
|
unsigned char req_replylen;
|
|
bool result = true;
|
|
/*
|
|
FlashPoint Host Adapters do not require this protection.
|
|
*/
|
|
if (blogic_flashpoint_type(adapter))
|
|
return true;
|
|
/*
|
|
Issue the Inquire Extended Setup Information command. Only genuine
|
|
BusLogic Host Adapters and true clones support this command.
|
|
Adaptec 1542C series Host Adapters that respond to the Geometry
|
|
Register I/O port will fail this command.
|
|
*/
|
|
req_replylen = sizeof(ext_setupinfo);
|
|
if (blogic_cmd(adapter, BLOGIC_INQ_EXTSETUP, &req_replylen,
|
|
sizeof(req_replylen), &ext_setupinfo,
|
|
sizeof(ext_setupinfo)) != sizeof(ext_setupinfo))
|
|
result = false;
|
|
/*
|
|
Provide tracing information if requested and return.
|
|
*/
|
|
if (blogic_global_options.trace_probe)
|
|
blogic_notice("BusLogic_Check(0x%lX): MultiMaster %s\n", adapter,
|
|
adapter->io_addr,
|
|
(result ? "Found" : "Not Found"));
|
|
return result;
|
|
}
|
|
|
|
|
|
/*
|
|
blogic_rdconfig reads the Configuration Information
|
|
from Host Adapter and initializes the Host Adapter structure.
|
|
*/
|
|
|
|
static bool __init blogic_rdconfig(struct blogic_adapter *adapter)
|
|
{
|
|
struct blogic_board_id id;
|
|
struct blogic_config config;
|
|
struct blogic_setup_info setupinfo;
|
|
struct blogic_ext_setup ext_setupinfo;
|
|
unsigned char model[5];
|
|
unsigned char fw_ver_digit3;
|
|
unsigned char fw_ver_letter;
|
|
struct blogic_adapter_info adapter_info;
|
|
struct blogic_fetch_localram fetch_localram;
|
|
struct blogic_autoscsi autoscsi;
|
|
union blogic_geo_reg georeg;
|
|
unsigned char req_replylen;
|
|
unsigned char *tgt, ch;
|
|
int tgt_id, i;
|
|
/*
|
|
Configuration Information for FlashPoint Host Adapters is
|
|
provided in the fpoint_info structure by the FlashPoint
|
|
SCCB Manager's Probe Function. Initialize fields in the
|
|
Host Adapter structure from the fpoint_info structure.
|
|
*/
|
|
if (blogic_flashpoint_type(adapter)) {
|
|
struct fpoint_info *fpinfo = &adapter->fpinfo;
|
|
tgt = adapter->model;
|
|
*tgt++ = 'B';
|
|
*tgt++ = 'T';
|
|
*tgt++ = '-';
|
|
for (i = 0; i < sizeof(fpinfo->model); i++)
|
|
*tgt++ = fpinfo->model[i];
|
|
*tgt++ = '\0';
|
|
strcpy(adapter->fw_ver, FLASHPOINT_FW_VER);
|
|
adapter->scsi_id = fpinfo->scsi_id;
|
|
adapter->ext_trans_enable = fpinfo->ext_trans_enable;
|
|
adapter->parity = fpinfo->parity;
|
|
adapter->reset_enabled = !fpinfo->softreset;
|
|
adapter->level_int = true;
|
|
adapter->wide = fpinfo->wide;
|
|
adapter->differential = false;
|
|
adapter->scam = true;
|
|
adapter->ultra = true;
|
|
adapter->ext_lun = true;
|
|
adapter->terminfo_valid = true;
|
|
adapter->low_term = fpinfo->low_term;
|
|
adapter->high_term = fpinfo->high_term;
|
|
adapter->scam_enabled = fpinfo->scam_enabled;
|
|
adapter->scam_lev2 = fpinfo->scam_lev2;
|
|
adapter->drvr_sglimit = BLOGIC_SG_LIMIT;
|
|
adapter->maxdev = (adapter->wide ? 16 : 8);
|
|
adapter->maxlun = 32;
|
|
adapter->initccbs = 4 * BLOGIC_CCB_GRP_ALLOCSIZE;
|
|
adapter->inc_ccbs = BLOGIC_CCB_GRP_ALLOCSIZE;
|
|
adapter->drvr_qdepth = 255;
|
|
adapter->adapter_qdepth = adapter->drvr_qdepth;
|
|
adapter->sync_ok = fpinfo->sync_ok;
|
|
adapter->fast_ok = fpinfo->fast_ok;
|
|
adapter->ultra_ok = fpinfo->ultra_ok;
|
|
adapter->wide_ok = fpinfo->wide_ok;
|
|
adapter->discon_ok = fpinfo->discon_ok;
|
|
adapter->tagq_ok = 0xFFFF;
|
|
goto common;
|
|
}
|
|
/*
|
|
Issue the Inquire Board ID command.
|
|
*/
|
|
if (blogic_cmd(adapter, BLOGIC_GET_BOARD_ID, NULL, 0, &id,
|
|
sizeof(id)) != sizeof(id))
|
|
return blogic_failure(adapter, "INQUIRE BOARD ID");
|
|
/*
|
|
Issue the Inquire Configuration command.
|
|
*/
|
|
if (blogic_cmd(adapter, BLOGIC_INQ_CONFIG, NULL, 0, &config,
|
|
sizeof(config))
|
|
!= sizeof(config))
|
|
return blogic_failure(adapter, "INQUIRE CONFIGURATION");
|
|
/*
|
|
Issue the Inquire Setup Information command.
|
|
*/
|
|
req_replylen = sizeof(setupinfo);
|
|
if (blogic_cmd(adapter, BLOGIC_INQ_SETUPINFO, &req_replylen,
|
|
sizeof(req_replylen), &setupinfo,
|
|
sizeof(setupinfo)) != sizeof(setupinfo))
|
|
return blogic_failure(adapter, "INQUIRE SETUP INFORMATION");
|
|
/*
|
|
Issue the Inquire Extended Setup Information command.
|
|
*/
|
|
req_replylen = sizeof(ext_setupinfo);
|
|
if (blogic_cmd(adapter, BLOGIC_INQ_EXTSETUP, &req_replylen,
|
|
sizeof(req_replylen), &ext_setupinfo,
|
|
sizeof(ext_setupinfo)) != sizeof(ext_setupinfo))
|
|
return blogic_failure(adapter,
|
|
"INQUIRE EXTENDED SETUP INFORMATION");
|
|
/*
|
|
Issue the Inquire Firmware Version 3rd Digit command.
|
|
*/
|
|
fw_ver_digit3 = '\0';
|
|
if (id.fw_ver_digit1 > '0')
|
|
if (blogic_cmd(adapter, BLOGIC_INQ_FWVER_D3, NULL, 0,
|
|
&fw_ver_digit3,
|
|
sizeof(fw_ver_digit3)) != sizeof(fw_ver_digit3))
|
|
return blogic_failure(adapter,
|
|
"INQUIRE FIRMWARE 3RD DIGIT");
|
|
/*
|
|
Issue the Inquire Host Adapter Model Number command.
|
|
*/
|
|
if (ext_setupinfo.bus_type == 'A' && id.fw_ver_digit1 == '2')
|
|
/* BusLogic BT-542B ISA 2.xx */
|
|
strcpy(model, "542B");
|
|
else if (ext_setupinfo.bus_type == 'E' && id.fw_ver_digit1 == '2' &&
|
|
(id.fw_ver_digit2 <= '1' || (id.fw_ver_digit2 == '2' &&
|
|
fw_ver_digit3 == '0')))
|
|
/* BusLogic BT-742A EISA 2.1x or 2.20 */
|
|
strcpy(model, "742A");
|
|
else if (ext_setupinfo.bus_type == 'E' && id.fw_ver_digit1 == '0')
|
|
/* AMI FastDisk EISA Series 441 0.x */
|
|
strcpy(model, "747A");
|
|
else {
|
|
req_replylen = sizeof(model);
|
|
if (blogic_cmd(adapter, BLOGIC_INQ_MODELNO, &req_replylen,
|
|
sizeof(req_replylen), &model,
|
|
sizeof(model)) != sizeof(model))
|
|
return blogic_failure(adapter,
|
|
"INQUIRE HOST ADAPTER MODEL NUMBER");
|
|
}
|
|
/*
|
|
BusLogic MultiMaster Host Adapters can be identified by their
|
|
model number and the major version number of their firmware
|
|
as follows:
|
|
|
|
5.xx BusLogic "W" Series Host Adapters:
|
|
BT-948/958/958D
|
|
4.xx BusLogic "C" Series Host Adapters:
|
|
BT-946C/956C/956CD/747C/757C/757CD/445C/545C/540CF
|
|
3.xx BusLogic "S" Series Host Adapters:
|
|
BT-747S/747D/757S/757D/445S/545S/542D
|
|
BT-542B/742A (revision H)
|
|
2.xx BusLogic "A" Series Host Adapters:
|
|
BT-542B/742A (revision G and below)
|
|
0.xx AMI FastDisk VLB/EISA BusLogic Clone Host Adapter
|
|
*/
|
|
/*
|
|
Save the Model Name and Host Adapter Name in the Host Adapter
|
|
structure.
|
|
*/
|
|
tgt = adapter->model;
|
|
*tgt++ = 'B';
|
|
*tgt++ = 'T';
|
|
*tgt++ = '-';
|
|
for (i = 0; i < sizeof(model); i++) {
|
|
ch = model[i];
|
|
if (ch == ' ' || ch == '\0')
|
|
break;
|
|
*tgt++ = ch;
|
|
}
|
|
*tgt++ = '\0';
|
|
/*
|
|
Save the Firmware Version in the Host Adapter structure.
|
|
*/
|
|
tgt = adapter->fw_ver;
|
|
*tgt++ = id.fw_ver_digit1;
|
|
*tgt++ = '.';
|
|
*tgt++ = id.fw_ver_digit2;
|
|
if (fw_ver_digit3 != ' ' && fw_ver_digit3 != '\0')
|
|
*tgt++ = fw_ver_digit3;
|
|
*tgt = '\0';
|
|
/*
|
|
Issue the Inquire Firmware Version Letter command.
|
|
*/
|
|
if (strcmp(adapter->fw_ver, "3.3") >= 0) {
|
|
if (blogic_cmd(adapter, BLOGIC_INQ_FWVER_LETTER, NULL, 0,
|
|
&fw_ver_letter,
|
|
sizeof(fw_ver_letter)) != sizeof(fw_ver_letter))
|
|
return blogic_failure(adapter,
|
|
"INQUIRE FIRMWARE VERSION LETTER");
|
|
if (fw_ver_letter != ' ' && fw_ver_letter != '\0')
|
|
*tgt++ = fw_ver_letter;
|
|
*tgt = '\0';
|
|
}
|
|
/*
|
|
Save the Host Adapter SCSI ID in the Host Adapter structure.
|
|
*/
|
|
adapter->scsi_id = config.id;
|
|
/*
|
|
Determine the Bus Type and save it in the Host Adapter structure,
|
|
determine and save the IRQ Channel if necessary, and determine
|
|
and save the DMA Channel for ISA Host Adapters.
|
|
*/
|
|
adapter->adapter_bus_type =
|
|
blogic_adater_bus_types[adapter->model[3] - '4'];
|
|
if (adapter->irq_ch == 0) {
|
|
if (config.irq_ch9)
|
|
adapter->irq_ch = 9;
|
|
else if (config.irq_ch10)
|
|
adapter->irq_ch = 10;
|
|
else if (config.irq_ch11)
|
|
adapter->irq_ch = 11;
|
|
else if (config.irq_ch12)
|
|
adapter->irq_ch = 12;
|
|
else if (config.irq_ch14)
|
|
adapter->irq_ch = 14;
|
|
else if (config.irq_ch15)
|
|
adapter->irq_ch = 15;
|
|
}
|
|
if (adapter->adapter_bus_type == BLOGIC_ISA_BUS) {
|
|
if (config.dma_ch5)
|
|
adapter->dma_ch = 5;
|
|
else if (config.dma_ch6)
|
|
adapter->dma_ch = 6;
|
|
else if (config.dma_ch7)
|
|
adapter->dma_ch = 7;
|
|
}
|
|
/*
|
|
Determine whether Extended Translation is enabled and save it in
|
|
the Host Adapter structure.
|
|
*/
|
|
georeg.all = blogic_rdgeom(adapter);
|
|
adapter->ext_trans_enable = georeg.gr.ext_trans_enable;
|
|
/*
|
|
Save the Scatter Gather Limits, Level Sensitive Interrupt flag, Wide
|
|
SCSI flag, Differential SCSI flag, SCAM Supported flag, and
|
|
Ultra SCSI flag in the Host Adapter structure.
|
|
*/
|
|
adapter->adapter_sglimit = ext_setupinfo.sg_limit;
|
|
adapter->drvr_sglimit = adapter->adapter_sglimit;
|
|
if (adapter->adapter_sglimit > BLOGIC_SG_LIMIT)
|
|
adapter->drvr_sglimit = BLOGIC_SG_LIMIT;
|
|
if (ext_setupinfo.misc.level_int)
|
|
adapter->level_int = true;
|
|
adapter->wide = ext_setupinfo.wide;
|
|
adapter->differential = ext_setupinfo.differential;
|
|
adapter->scam = ext_setupinfo.scam;
|
|
adapter->ultra = ext_setupinfo.ultra;
|
|
/*
|
|
Determine whether Extended LUN Format CCBs are supported and save the
|
|
information in the Host Adapter structure.
|
|
*/
|
|
if (adapter->fw_ver[0] == '5' || (adapter->fw_ver[0] == '4' &&
|
|
adapter->wide))
|
|
adapter->ext_lun = true;
|
|
/*
|
|
Issue the Inquire PCI Host Adapter Information command to read the
|
|
Termination Information from "W" series MultiMaster Host Adapters.
|
|
*/
|
|
if (adapter->fw_ver[0] == '5') {
|
|
if (blogic_cmd(adapter, BLOGIC_INQ_PCI_INFO, NULL, 0,
|
|
&adapter_info,
|
|
sizeof(adapter_info)) != sizeof(adapter_info))
|
|
return blogic_failure(adapter,
|
|
"INQUIRE PCI HOST ADAPTER INFORMATION");
|
|
/*
|
|
Save the Termination Information in the Host Adapter
|
|
structure.
|
|
*/
|
|
if (adapter_info.genericinfo_valid) {
|
|
adapter->terminfo_valid = true;
|
|
adapter->low_term = adapter_info.low_term;
|
|
adapter->high_term = adapter_info.high_term;
|
|
}
|
|
}
|
|
/*
|
|
Issue the Fetch Host Adapter Local RAM command to read the
|
|
AutoSCSI data from "W" and "C" series MultiMaster Host Adapters.
|
|
*/
|
|
if (adapter->fw_ver[0] >= '4') {
|
|
fetch_localram.offset = BLOGIC_AUTOSCSI_BASE;
|
|
fetch_localram.count = sizeof(autoscsi);
|
|
if (blogic_cmd(adapter, BLOGIC_FETCH_LOCALRAM, &fetch_localram,
|
|
sizeof(fetch_localram), &autoscsi,
|
|
sizeof(autoscsi)) != sizeof(autoscsi))
|
|
return blogic_failure(adapter,
|
|
"FETCH HOST ADAPTER LOCAL RAM");
|
|
/*
|
|
Save the Parity Checking Enabled, Bus Reset Enabled,
|
|
and Termination Information in the Host Adapter structure.
|
|
*/
|
|
adapter->parity = autoscsi.parity;
|
|
adapter->reset_enabled = autoscsi.reset_enabled;
|
|
if (adapter->fw_ver[0] == '4') {
|
|
adapter->terminfo_valid = true;
|
|
adapter->low_term = autoscsi.low_term;
|
|
adapter->high_term = autoscsi.high_term;
|
|
}
|
|
/*
|
|
Save the Wide Permitted, Fast Permitted, Synchronous
|
|
Permitted, Disconnect Permitted, Ultra Permitted, and
|
|
SCAM Information in the Host Adapter structure.
|
|
*/
|
|
adapter->wide_ok = autoscsi.wide_ok;
|
|
adapter->fast_ok = autoscsi.fast_ok;
|
|
adapter->sync_ok = autoscsi.sync_ok;
|
|
adapter->discon_ok = autoscsi.discon_ok;
|
|
if (adapter->ultra)
|
|
adapter->ultra_ok = autoscsi.ultra_ok;
|
|
if (adapter->scam) {
|
|
adapter->scam_enabled = autoscsi.scam_enabled;
|
|
adapter->scam_lev2 = autoscsi.scam_lev2;
|
|
}
|
|
}
|
|
/*
|
|
Initialize fields in the Host Adapter structure for "S" and "A"
|
|
series MultiMaster Host Adapters.
|
|
*/
|
|
if (adapter->fw_ver[0] < '4') {
|
|
if (setupinfo.sync) {
|
|
adapter->sync_ok = 0xFF;
|
|
if (adapter->adapter_bus_type == BLOGIC_EISA_BUS) {
|
|
if (ext_setupinfo.misc.fast_on_eisa)
|
|
adapter->fast_ok = 0xFF;
|
|
if (strcmp(adapter->model, "BT-757") == 0)
|
|
adapter->wide_ok = 0xFF;
|
|
}
|
|
}
|
|
adapter->discon_ok = 0xFF;
|
|
adapter->parity = setupinfo.parity;
|
|
adapter->reset_enabled = true;
|
|
}
|
|
/*
|
|
Determine the maximum number of Target IDs and Logical Units
|
|
supported by this driver for Wide and Narrow Host Adapters.
|
|
*/
|
|
adapter->maxdev = (adapter->wide ? 16 : 8);
|
|
adapter->maxlun = (adapter->ext_lun ? 32 : 8);
|
|
/*
|
|
Select appropriate values for the Mailbox Count, Driver Queue Depth,
|
|
Initial CCBs, and Incremental CCBs variables based on whether
|
|
or not Strict Round Robin Mode is supported. If Strict Round
|
|
Robin Mode is supported, then there is no performance degradation
|
|
in using the maximum possible number of Outgoing and Incoming
|
|
Mailboxes and allowing the Tagged and Untagged Queue Depths to
|
|
determine the actual utilization. If Strict Round Robin Mode is
|
|
not supported, then the Host Adapter must scan all the Outgoing
|
|
Mailboxes whenever an Outgoing Mailbox entry is made, which can
|
|
cause a substantial performance penalty. The host adapters
|
|
actually have room to store the following number of CCBs
|
|
internally; that is, they can internally queue and manage this
|
|
many active commands on the SCSI bus simultaneously. Performance
|
|
measurements demonstrate that the Driver Queue Depth should be
|
|
set to the Mailbox Count, rather than the Host Adapter Queue
|
|
Depth (internal CCB capacity), as it is more efficient to have the
|
|
queued commands waiting in Outgoing Mailboxes if necessary than
|
|
to block the process in the higher levels of the SCSI Subsystem.
|
|
|
|
192 BT-948/958/958D
|
|
100 BT-946C/956C/956CD/747C/757C/757CD/445C
|
|
50 BT-545C/540CF
|
|
30 BT-747S/747D/757S/757D/445S/545S/542D/542B/742A
|
|
*/
|
|
if (adapter->fw_ver[0] == '5')
|
|
adapter->adapter_qdepth = 192;
|
|
else if (adapter->fw_ver[0] == '4')
|
|
adapter->adapter_qdepth = (adapter->adapter_bus_type !=
|
|
BLOGIC_ISA_BUS ? 100 : 50);
|
|
else
|
|
adapter->adapter_qdepth = 30;
|
|
if (strcmp(adapter->fw_ver, "3.31") >= 0) {
|
|
adapter->strict_rr = true;
|
|
adapter->mbox_count = BLOGIC_MAX_MAILBOX;
|
|
} else {
|
|
adapter->strict_rr = false;
|
|
adapter->mbox_count = 32;
|
|
}
|
|
adapter->drvr_qdepth = adapter->mbox_count;
|
|
adapter->initccbs = 4 * BLOGIC_CCB_GRP_ALLOCSIZE;
|
|
adapter->inc_ccbs = BLOGIC_CCB_GRP_ALLOCSIZE;
|
|
/*
|
|
Tagged Queuing support is available and operates properly on
|
|
all "W" series MultiMaster Host Adapters, on "C" series
|
|
MultiMaster Host Adapters with firmware version 4.22 and above,
|
|
and on "S" series MultiMaster Host Adapters with firmware version
|
|
3.35 and above.
|
|
*/
|
|
adapter->tagq_ok = 0;
|
|
switch (adapter->fw_ver[0]) {
|
|
case '5':
|
|
adapter->tagq_ok = 0xFFFF;
|
|
break;
|
|
case '4':
|
|
if (strcmp(adapter->fw_ver, "4.22") >= 0)
|
|
adapter->tagq_ok = 0xFFFF;
|
|
break;
|
|
case '3':
|
|
if (strcmp(adapter->fw_ver, "3.35") >= 0)
|
|
adapter->tagq_ok = 0xFFFF;
|
|
break;
|
|
}
|
|
/*
|
|
Determine the Host Adapter BIOS Address if the BIOS is enabled and
|
|
save it in the Host Adapter structure. The BIOS is disabled if the
|
|
bios_addr is 0.
|
|
*/
|
|
adapter->bios_addr = ext_setupinfo.bios_addr << 12;
|
|
/*
|
|
ISA Host Adapters require Bounce Buffers if there is more than
|
|
16MB memory.
|
|
*/
|
|
if (adapter->adapter_bus_type == BLOGIC_ISA_BUS &&
|
|
(void *) high_memory > (void *) MAX_DMA_ADDRESS)
|
|
adapter->need_bouncebuf = true;
|
|
/*
|
|
BusLogic BT-445S Host Adapters prior to board revision E have a
|
|
hardware bug whereby when the BIOS is enabled, transfers to/from
|
|
the same address range the BIOS occupies modulo 16MB are handled
|
|
incorrectly. Only properly functioning BT-445S Host Adapters
|
|
have firmware version 3.37, so require that ISA Bounce Buffers
|
|
be used for the buggy BT-445S models if there is more than 16MB
|
|
memory.
|
|
*/
|
|
if (adapter->bios_addr > 0 && strcmp(adapter->model, "BT-445S") == 0 &&
|
|
strcmp(adapter->fw_ver, "3.37") < 0 &&
|
|
(void *) high_memory > (void *) MAX_DMA_ADDRESS)
|
|
adapter->need_bouncebuf = true;
|
|
/*
|
|
Initialize parameters common to MultiMaster and FlashPoint
|
|
Host Adapters.
|
|
*/
|
|
common:
|
|
/*
|
|
Initialize the Host Adapter Full Model Name from the Model Name.
|
|
*/
|
|
strcpy(adapter->full_model, "BusLogic ");
|
|
strcat(adapter->full_model, adapter->model);
|
|
/*
|
|
Select an appropriate value for the Tagged Queue Depth either from a
|
|
BusLogic Driver Options specification, or based on whether this Host
|
|
Adapter requires that ISA Bounce Buffers be used. The Tagged Queue
|
|
Depth is left at 0 for automatic determination in
|
|
BusLogic_SelectQueueDepths. Initialize the Untagged Queue Depth.
|
|
*/
|
|
for (tgt_id = 0; tgt_id < BLOGIC_MAXDEV; tgt_id++) {
|
|
unsigned char qdepth = 0;
|
|
if (adapter->drvr_opts != NULL &&
|
|
adapter->drvr_opts->qdepth[tgt_id] > 0)
|
|
qdepth = adapter->drvr_opts->qdepth[tgt_id];
|
|
else if (adapter->need_bouncebuf)
|
|
qdepth = BLOGIC_TAG_DEPTH_BB;
|
|
adapter->qdepth[tgt_id] = qdepth;
|
|
}
|
|
if (adapter->need_bouncebuf)
|
|
adapter->untag_qdepth = BLOGIC_UNTAG_DEPTH_BB;
|
|
else
|
|
adapter->untag_qdepth = BLOGIC_UNTAG_DEPTH;
|
|
if (adapter->drvr_opts != NULL)
|
|
adapter->common_qdepth = adapter->drvr_opts->common_qdepth;
|
|
if (adapter->common_qdepth > 0 &&
|
|
adapter->common_qdepth < adapter->untag_qdepth)
|
|
adapter->untag_qdepth = adapter->common_qdepth;
|
|
/*
|
|
Tagged Queuing is only allowed if Disconnect/Reconnect is permitted.
|
|
Therefore, mask the Tagged Queuing Permitted Default bits with the
|
|
Disconnect/Reconnect Permitted bits.
|
|
*/
|
|
adapter->tagq_ok &= adapter->discon_ok;
|
|
/*
|
|
Combine the default Tagged Queuing Permitted bits with any
|
|
BusLogic Driver Options Tagged Queuing specification.
|
|
*/
|
|
if (adapter->drvr_opts != NULL)
|
|
adapter->tagq_ok = (adapter->drvr_opts->tagq_ok &
|
|
adapter->drvr_opts->tagq_ok_mask) |
|
|
(adapter->tagq_ok & ~adapter->drvr_opts->tagq_ok_mask);
|
|
|
|
/*
|
|
Select an appropriate value for Bus Settle Time either from a
|
|
BusLogic Driver Options specification, or from
|
|
BLOGIC_BUS_SETTLE_TIME.
|
|
*/
|
|
if (adapter->drvr_opts != NULL &&
|
|
adapter->drvr_opts->bus_settle_time > 0)
|
|
adapter->bus_settle_time = adapter->drvr_opts->bus_settle_time;
|
|
else
|
|
adapter->bus_settle_time = BLOGIC_BUS_SETTLE_TIME;
|
|
/*
|
|
Indicate reading the Host Adapter Configuration completed
|
|
successfully.
|
|
*/
|
|
return true;
|
|
}
|
|
|
|
|
|
/*
|
|
blogic_reportconfig reports the configuration of Host Adapter.
|
|
*/
|
|
|
|
static bool __init blogic_reportconfig(struct blogic_adapter *adapter)
|
|
{
|
|
unsigned short alltgt_mask = (1 << adapter->maxdev) - 1;
|
|
unsigned short sync_ok, fast_ok;
|
|
unsigned short ultra_ok, wide_ok;
|
|
unsigned short discon_ok, tagq_ok;
|
|
bool common_syncneg, common_tagq_depth;
|
|
char syncstr[BLOGIC_MAXDEV + 1];
|
|
char widestr[BLOGIC_MAXDEV + 1];
|
|
char discon_str[BLOGIC_MAXDEV + 1];
|
|
char tagq_str[BLOGIC_MAXDEV + 1];
|
|
char *syncmsg = syncstr;
|
|
char *widemsg = widestr;
|
|
char *discon_msg = discon_str;
|
|
char *tagq_msg = tagq_str;
|
|
int tgt_id;
|
|
|
|
blogic_info("Configuring BusLogic Model %s %s%s%s%s SCSI Host Adapter\n", adapter, adapter->model, blogic_adapter_busnames[adapter->adapter_bus_type], (adapter->wide ? " Wide" : ""), (adapter->differential ? " Differential" : ""), (adapter->ultra ? " Ultra" : ""));
|
|
blogic_info(" Firmware Version: %s, I/O Address: 0x%lX, IRQ Channel: %d/%s\n", adapter, adapter->fw_ver, adapter->io_addr, adapter->irq_ch, (adapter->level_int ? "Level" : "Edge"));
|
|
if (adapter->adapter_bus_type != BLOGIC_PCI_BUS) {
|
|
blogic_info(" DMA Channel: ", adapter);
|
|
if (adapter->dma_ch > 0)
|
|
blogic_info("%d, ", adapter, adapter->dma_ch);
|
|
else
|
|
blogic_info("None, ", adapter);
|
|
if (adapter->bios_addr > 0)
|
|
blogic_info("BIOS Address: 0x%lX, ", adapter,
|
|
adapter->bios_addr);
|
|
else
|
|
blogic_info("BIOS Address: None, ", adapter);
|
|
} else {
|
|
blogic_info(" PCI Bus: %d, Device: %d, Address: ", adapter,
|
|
adapter->bus, adapter->dev);
|
|
if (adapter->pci_addr > 0)
|
|
blogic_info("0x%lX, ", adapter, adapter->pci_addr);
|
|
else
|
|
blogic_info("Unassigned, ", adapter);
|
|
}
|
|
blogic_info("Host Adapter SCSI ID: %d\n", adapter, adapter->scsi_id);
|
|
blogic_info(" Parity Checking: %s, Extended Translation: %s\n",
|
|
adapter, (adapter->parity ? "Enabled" : "Disabled"),
|
|
(adapter->ext_trans_enable ? "Enabled" : "Disabled"));
|
|
alltgt_mask &= ~(1 << adapter->scsi_id);
|
|
sync_ok = adapter->sync_ok & alltgt_mask;
|
|
fast_ok = adapter->fast_ok & alltgt_mask;
|
|
ultra_ok = adapter->ultra_ok & alltgt_mask;
|
|
if ((blogic_multimaster_type(adapter) &&
|
|
(adapter->fw_ver[0] >= '4' ||
|
|
adapter->adapter_bus_type == BLOGIC_EISA_BUS)) ||
|
|
blogic_flashpoint_type(adapter)) {
|
|
common_syncneg = false;
|
|
if (sync_ok == 0) {
|
|
syncmsg = "Disabled";
|
|
common_syncneg = true;
|
|
} else if (sync_ok == alltgt_mask) {
|
|
if (fast_ok == 0) {
|
|
syncmsg = "Slow";
|
|
common_syncneg = true;
|
|
} else if (fast_ok == alltgt_mask) {
|
|
if (ultra_ok == 0) {
|
|
syncmsg = "Fast";
|
|
common_syncneg = true;
|
|
} else if (ultra_ok == alltgt_mask) {
|
|
syncmsg = "Ultra";
|
|
common_syncneg = true;
|
|
}
|
|
}
|
|
}
|
|
if (!common_syncneg) {
|
|
for (tgt_id = 0; tgt_id < adapter->maxdev; tgt_id++)
|
|
syncstr[tgt_id] = ((!(sync_ok & (1 << tgt_id))) ? 'N' : (!(fast_ok & (1 << tgt_id)) ? 'S' : (!(ultra_ok & (1 << tgt_id)) ? 'F' : 'U')));
|
|
syncstr[adapter->scsi_id] = '#';
|
|
syncstr[adapter->maxdev] = '\0';
|
|
}
|
|
} else
|
|
syncmsg = (sync_ok == 0 ? "Disabled" : "Enabled");
|
|
wide_ok = adapter->wide_ok & alltgt_mask;
|
|
if (wide_ok == 0)
|
|
widemsg = "Disabled";
|
|
else if (wide_ok == alltgt_mask)
|
|
widemsg = "Enabled";
|
|
else {
|
|
for (tgt_id = 0; tgt_id < adapter->maxdev; tgt_id++)
|
|
widestr[tgt_id] = ((wide_ok & (1 << tgt_id)) ? 'Y' : 'N');
|
|
widestr[adapter->scsi_id] = '#';
|
|
widestr[adapter->maxdev] = '\0';
|
|
}
|
|
discon_ok = adapter->discon_ok & alltgt_mask;
|
|
if (discon_ok == 0)
|
|
discon_msg = "Disabled";
|
|
else if (discon_ok == alltgt_mask)
|
|
discon_msg = "Enabled";
|
|
else {
|
|
for (tgt_id = 0; tgt_id < adapter->maxdev; tgt_id++)
|
|
discon_str[tgt_id] = ((discon_ok & (1 << tgt_id)) ? 'Y' : 'N');
|
|
discon_str[adapter->scsi_id] = '#';
|
|
discon_str[adapter->maxdev] = '\0';
|
|
}
|
|
tagq_ok = adapter->tagq_ok & alltgt_mask;
|
|
if (tagq_ok == 0)
|
|
tagq_msg = "Disabled";
|
|
else if (tagq_ok == alltgt_mask)
|
|
tagq_msg = "Enabled";
|
|
else {
|
|
for (tgt_id = 0; tgt_id < adapter->maxdev; tgt_id++)
|
|
tagq_str[tgt_id] = ((tagq_ok & (1 << tgt_id)) ? 'Y' : 'N');
|
|
tagq_str[adapter->scsi_id] = '#';
|
|
tagq_str[adapter->maxdev] = '\0';
|
|
}
|
|
blogic_info(" Synchronous Negotiation: %s, Wide Negotiation: %s\n",
|
|
adapter, syncmsg, widemsg);
|
|
blogic_info(" Disconnect/Reconnect: %s, Tagged Queuing: %s\n", adapter,
|
|
discon_msg, tagq_msg);
|
|
if (blogic_multimaster_type(adapter)) {
|
|
blogic_info(" Scatter/Gather Limit: %d of %d segments, Mailboxes: %d\n", adapter, adapter->drvr_sglimit, adapter->adapter_sglimit, adapter->mbox_count);
|
|
blogic_info(" Driver Queue Depth: %d, Host Adapter Queue Depth: %d\n", adapter, adapter->drvr_qdepth, adapter->adapter_qdepth);
|
|
} else
|
|
blogic_info(" Driver Queue Depth: %d, Scatter/Gather Limit: %d segments\n", adapter, adapter->drvr_qdepth, adapter->drvr_sglimit);
|
|
blogic_info(" Tagged Queue Depth: ", adapter);
|
|
common_tagq_depth = true;
|
|
for (tgt_id = 1; tgt_id < adapter->maxdev; tgt_id++)
|
|
if (adapter->qdepth[tgt_id] != adapter->qdepth[0]) {
|
|
common_tagq_depth = false;
|
|
break;
|
|
}
|
|
if (common_tagq_depth) {
|
|
if (adapter->qdepth[0] > 0)
|
|
blogic_info("%d", adapter, adapter->qdepth[0]);
|
|
else
|
|
blogic_info("Automatic", adapter);
|
|
} else
|
|
blogic_info("Individual", adapter);
|
|
blogic_info(", Untagged Queue Depth: %d\n", adapter,
|
|
adapter->untag_qdepth);
|
|
if (adapter->terminfo_valid) {
|
|
if (adapter->wide)
|
|
blogic_info(" SCSI Bus Termination: %s", adapter,
|
|
(adapter->low_term ? (adapter->high_term ? "Both Enabled" : "Low Enabled") : (adapter->high_term ? "High Enabled" : "Both Disabled")));
|
|
else
|
|
blogic_info(" SCSI Bus Termination: %s", adapter,
|
|
(adapter->low_term ? "Enabled" : "Disabled"));
|
|
if (adapter->scam)
|
|
blogic_info(", SCAM: %s", adapter,
|
|
(adapter->scam_enabled ? (adapter->scam_lev2 ? "Enabled, Level 2" : "Enabled, Level 1") : "Disabled"));
|
|
blogic_info("\n", adapter);
|
|
}
|
|
/*
|
|
Indicate reporting the Host Adapter configuration completed
|
|
successfully.
|
|
*/
|
|
return true;
|
|
}
|
|
|
|
|
|
/*
|
|
blogic_getres acquires the system resources necessary to use
|
|
Host Adapter.
|
|
*/
|
|
|
|
static bool __init blogic_getres(struct blogic_adapter *adapter)
|
|
{
|
|
if (adapter->irq_ch == 0) {
|
|
blogic_err("NO LEGAL INTERRUPT CHANNEL ASSIGNED - DETACHING\n",
|
|
adapter);
|
|
return false;
|
|
}
|
|
/*
|
|
Acquire shared access to the IRQ Channel.
|
|
*/
|
|
if (request_irq(adapter->irq_ch, blogic_inthandler, IRQF_SHARED,
|
|
adapter->full_model, adapter) < 0) {
|
|
blogic_err("UNABLE TO ACQUIRE IRQ CHANNEL %d - DETACHING\n",
|
|
adapter, adapter->irq_ch);
|
|
return false;
|
|
}
|
|
adapter->irq_acquired = true;
|
|
/*
|
|
Acquire exclusive access to the DMA Channel.
|
|
*/
|
|
if (adapter->dma_ch > 0) {
|
|
if (request_dma(adapter->dma_ch, adapter->full_model) < 0) {
|
|
blogic_err("UNABLE TO ACQUIRE DMA CHANNEL %d - DETACHING\n", adapter, adapter->dma_ch);
|
|
return false;
|
|
}
|
|
set_dma_mode(adapter->dma_ch, DMA_MODE_CASCADE);
|
|
enable_dma(adapter->dma_ch);
|
|
adapter->dma_chan_acquired = true;
|
|
}
|
|
/*
|
|
Indicate the System Resource Acquisition completed successfully,
|
|
*/
|
|
return true;
|
|
}
|
|
|
|
|
|
/*
|
|
blogic_relres releases any system resources previously acquired
|
|
by blogic_getres.
|
|
*/
|
|
|
|
static void blogic_relres(struct blogic_adapter *adapter)
|
|
{
|
|
/*
|
|
Release shared access to the IRQ Channel.
|
|
*/
|
|
if (adapter->irq_acquired)
|
|
free_irq(adapter->irq_ch, adapter);
|
|
/*
|
|
Release exclusive access to the DMA Channel.
|
|
*/
|
|
if (adapter->dma_chan_acquired)
|
|
free_dma(adapter->dma_ch);
|
|
/*
|
|
Release any allocated memory structs not released elsewhere
|
|
*/
|
|
if (adapter->mbox_space)
|
|
dma_free_coherent(&adapter->pci_device->dev, adapter->mbox_sz,
|
|
adapter->mbox_space, adapter->mbox_space_handle);
|
|
pci_dev_put(adapter->pci_device);
|
|
adapter->mbox_space = NULL;
|
|
adapter->mbox_space_handle = 0;
|
|
adapter->mbox_sz = 0;
|
|
}
|
|
|
|
|
|
/*
|
|
blogic_initadapter initializes Host Adapter. This is the only
|
|
function called during SCSI Host Adapter detection which modifies the state
|
|
of the Host Adapter from its initial power on or hard reset state.
|
|
*/
|
|
|
|
static bool blogic_initadapter(struct blogic_adapter *adapter)
|
|
{
|
|
struct blogic_extmbox_req extmbox_req;
|
|
enum blogic_rr_req rr_req;
|
|
enum blogic_setccb_fmt setccb_fmt;
|
|
int tgt_id;
|
|
|
|
/*
|
|
Initialize the pointers to the first and last CCBs that are
|
|
queued for completion processing.
|
|
*/
|
|
adapter->firstccb = NULL;
|
|
adapter->lastccb = NULL;
|
|
|
|
/*
|
|
Initialize the Bus Device Reset Pending CCB, Tagged Queuing Active,
|
|
Command Successful Flag, Active Commands, and Commands Since Reset
|
|
for each Target Device.
|
|
*/
|
|
for (tgt_id = 0; tgt_id < adapter->maxdev; tgt_id++) {
|
|
adapter->bdr_pend[tgt_id] = NULL;
|
|
adapter->tgt_flags[tgt_id].tagq_active = false;
|
|
adapter->tgt_flags[tgt_id].cmd_good = false;
|
|
adapter->active_cmds[tgt_id] = 0;
|
|
adapter->cmds_since_rst[tgt_id] = 0;
|
|
}
|
|
|
|
/*
|
|
FlashPoint Host Adapters do not use Outgoing and Incoming Mailboxes.
|
|
*/
|
|
if (blogic_flashpoint_type(adapter))
|
|
goto done;
|
|
|
|
/*
|
|
Initialize the Outgoing and Incoming Mailbox pointers.
|
|
*/
|
|
adapter->mbox_sz = adapter->mbox_count * (sizeof(struct blogic_outbox) + sizeof(struct blogic_inbox));
|
|
adapter->mbox_space = dma_alloc_coherent(&adapter->pci_device->dev,
|
|
adapter->mbox_sz, &adapter->mbox_space_handle,
|
|
GFP_KERNEL);
|
|
if (adapter->mbox_space == NULL)
|
|
return blogic_failure(adapter, "MAILBOX ALLOCATION");
|
|
adapter->first_outbox = (struct blogic_outbox *) adapter->mbox_space;
|
|
adapter->last_outbox = adapter->first_outbox + adapter->mbox_count - 1;
|
|
adapter->next_outbox = adapter->first_outbox;
|
|
adapter->first_inbox = (struct blogic_inbox *) (adapter->last_outbox + 1);
|
|
adapter->last_inbox = adapter->first_inbox + adapter->mbox_count - 1;
|
|
adapter->next_inbox = adapter->first_inbox;
|
|
|
|
/*
|
|
Initialize the Outgoing and Incoming Mailbox structures.
|
|
*/
|
|
memset(adapter->first_outbox, 0,
|
|
adapter->mbox_count * sizeof(struct blogic_outbox));
|
|
memset(adapter->first_inbox, 0,
|
|
adapter->mbox_count * sizeof(struct blogic_inbox));
|
|
|
|
/*
|
|
Initialize the Host Adapter's Pointer to the Outgoing/Incoming
|
|
Mailboxes.
|
|
*/
|
|
extmbox_req.mbox_count = adapter->mbox_count;
|
|
extmbox_req.base_mbox_addr = (u32) adapter->mbox_space_handle;
|
|
if (blogic_cmd(adapter, BLOGIC_INIT_EXT_MBOX, &extmbox_req,
|
|
sizeof(extmbox_req), NULL, 0) < 0)
|
|
return blogic_failure(adapter, "MAILBOX INITIALIZATION");
|
|
/*
|
|
Enable Strict Round Robin Mode if supported by the Host Adapter. In
|
|
Strict Round Robin Mode, the Host Adapter only looks at the next
|
|
Outgoing Mailbox for each new command, rather than scanning
|
|
through all the Outgoing Mailboxes to find any that have new
|
|
commands in them. Strict Round Robin Mode is significantly more
|
|
efficient.
|
|
*/
|
|
if (adapter->strict_rr) {
|
|
rr_req = BLOGIC_STRICT_RR_MODE;
|
|
if (blogic_cmd(adapter, BLOGIC_STRICT_RR, &rr_req,
|
|
sizeof(rr_req), NULL, 0) < 0)
|
|
return blogic_failure(adapter,
|
|
"ENABLE STRICT ROUND ROBIN MODE");
|
|
}
|
|
|
|
/*
|
|
For Host Adapters that support Extended LUN Format CCBs, issue the
|
|
Set CCB Format command to allow 32 Logical Units per Target Device.
|
|
*/
|
|
if (adapter->ext_lun) {
|
|
setccb_fmt = BLOGIC_EXT_LUN_CCB;
|
|
if (blogic_cmd(adapter, BLOGIC_SETCCB_FMT, &setccb_fmt,
|
|
sizeof(setccb_fmt), NULL, 0) < 0)
|
|
return blogic_failure(adapter, "SET CCB FORMAT");
|
|
}
|
|
|
|
/*
|
|
Announce Successful Initialization.
|
|
*/
|
|
done:
|
|
if (!adapter->adapter_initd) {
|
|
blogic_info("*** %s Initialized Successfully ***\n", adapter,
|
|
adapter->full_model);
|
|
blogic_info("\n", adapter);
|
|
} else
|
|
blogic_warn("*** %s Initialized Successfully ***\n", adapter,
|
|
adapter->full_model);
|
|
adapter->adapter_initd = true;
|
|
|
|
/*
|
|
Indicate the Host Adapter Initialization completed successfully.
|
|
*/
|
|
return true;
|
|
}
|
|
|
|
|
|
/*
|
|
blogic_inquiry inquires about the Target Devices accessible
|
|
through Host Adapter.
|
|
*/
|
|
|
|
static bool __init blogic_inquiry(struct blogic_adapter *adapter)
|
|
{
|
|
u16 installed_devs;
|
|
u8 installed_devs0to7[8];
|
|
struct blogic_setup_info setupinfo;
|
|
u8 sync_period[BLOGIC_MAXDEV];
|
|
unsigned char req_replylen;
|
|
int tgt_id;
|
|
|
|
/*
|
|
Wait a few seconds between the Host Adapter Hard Reset which
|
|
initiates a SCSI Bus Reset and issuing any SCSI Commands. Some
|
|
SCSI devices get confused if they receive SCSI Commands too soon
|
|
after a SCSI Bus Reset.
|
|
*/
|
|
blogic_delay(adapter->bus_settle_time);
|
|
/*
|
|
FlashPoint Host Adapters do not provide for Target Device Inquiry.
|
|
*/
|
|
if (blogic_flashpoint_type(adapter))
|
|
return true;
|
|
/*
|
|
Inhibit the Target Device Inquiry if requested.
|
|
*/
|
|
if (adapter->drvr_opts != NULL && adapter->drvr_opts->stop_tgt_inquiry)
|
|
return true;
|
|
/*
|
|
Issue the Inquire Target Devices command for host adapters with
|
|
firmware version 4.25 or later, or the Inquire Installed Devices
|
|
ID 0 to 7 command for older host adapters. This is necessary to
|
|
force Synchronous Transfer Negotiation so that the Inquire Setup
|
|
Information and Inquire Synchronous Period commands will return
|
|
valid data. The Inquire Target Devices command is preferable to
|
|
Inquire Installed Devices ID 0 to 7 since it only probes Logical
|
|
Unit 0 of each Target Device.
|
|
*/
|
|
if (strcmp(adapter->fw_ver, "4.25") >= 0) {
|
|
|
|
/*
|
|
Issue a Inquire Target Devices command. Inquire Target
|
|
Devices only tests Logical Unit 0 of each Target Device
|
|
unlike the Inquire Installed Devices commands which test
|
|
Logical Units 0 - 7. Two bytes are returned, where byte
|
|
0 bit 0 set indicates that Target Device 0 exists, and so on.
|
|
*/
|
|
|
|
if (blogic_cmd(adapter, BLOGIC_INQ_DEV, NULL, 0,
|
|
&installed_devs, sizeof(installed_devs))
|
|
!= sizeof(installed_devs))
|
|
return blogic_failure(adapter, "INQUIRE TARGET DEVICES");
|
|
for (tgt_id = 0; tgt_id < adapter->maxdev; tgt_id++)
|
|
adapter->tgt_flags[tgt_id].tgt_exists =
|
|
(installed_devs & (1 << tgt_id) ? true : false);
|
|
} else {
|
|
|
|
/*
|
|
Issue an Inquire Installed Devices command. For each
|
|
Target Device, a byte is returned where bit 0 set
|
|
indicates that Logical Unit 0 * exists, bit 1 set
|
|
indicates that Logical Unit 1 exists, and so on.
|
|
*/
|
|
|
|
if (blogic_cmd(adapter, BLOGIC_INQ_DEV0TO7, NULL, 0,
|
|
&installed_devs0to7, sizeof(installed_devs0to7))
|
|
!= sizeof(installed_devs0to7))
|
|
return blogic_failure(adapter,
|
|
"INQUIRE INSTALLED DEVICES ID 0 TO 7");
|
|
for (tgt_id = 0; tgt_id < 8; tgt_id++)
|
|
adapter->tgt_flags[tgt_id].tgt_exists =
|
|
installed_devs0to7[tgt_id] != 0;
|
|
}
|
|
/*
|
|
Issue the Inquire Setup Information command.
|
|
*/
|
|
req_replylen = sizeof(setupinfo);
|
|
if (blogic_cmd(adapter, BLOGIC_INQ_SETUPINFO, &req_replylen,
|
|
sizeof(req_replylen), &setupinfo, sizeof(setupinfo))
|
|
!= sizeof(setupinfo))
|
|
return blogic_failure(adapter, "INQUIRE SETUP INFORMATION");
|
|
for (tgt_id = 0; tgt_id < adapter->maxdev; tgt_id++)
|
|
adapter->sync_offset[tgt_id] = (tgt_id < 8 ? setupinfo.sync0to7[tgt_id].offset : setupinfo.sync8to15[tgt_id - 8].offset);
|
|
if (strcmp(adapter->fw_ver, "5.06L") >= 0)
|
|
for (tgt_id = 0; tgt_id < adapter->maxdev; tgt_id++)
|
|
adapter->tgt_flags[tgt_id].wide_active = (tgt_id < 8 ? (setupinfo.wide_tx_active0to7 & (1 << tgt_id) ? true : false) : (setupinfo.wide_tx_active8to15 & (1 << (tgt_id - 8)) ? true : false));
|
|
/*
|
|
Issue the Inquire Synchronous Period command.
|
|
*/
|
|
if (adapter->fw_ver[0] >= '3') {
|
|
|
|
/* Issue a Inquire Synchronous Period command. For each
|
|
Target Device, a byte is returned which represents the
|
|
Synchronous Transfer Period in units of 10 nanoseconds.
|
|
*/
|
|
|
|
req_replylen = sizeof(sync_period);
|
|
if (blogic_cmd(adapter, BLOGIC_INQ_SYNC_PERIOD, &req_replylen,
|
|
sizeof(req_replylen), &sync_period,
|
|
sizeof(sync_period)) != sizeof(sync_period))
|
|
return blogic_failure(adapter,
|
|
"INQUIRE SYNCHRONOUS PERIOD");
|
|
for (tgt_id = 0; tgt_id < adapter->maxdev; tgt_id++)
|
|
adapter->sync_period[tgt_id] = sync_period[tgt_id];
|
|
} else
|
|
for (tgt_id = 0; tgt_id < adapter->maxdev; tgt_id++)
|
|
if (setupinfo.sync0to7[tgt_id].offset > 0)
|
|
adapter->sync_period[tgt_id] = 20 + 5 * setupinfo.sync0to7[tgt_id].tx_period;
|
|
/*
|
|
Indicate the Target Device Inquiry completed successfully.
|
|
*/
|
|
return true;
|
|
}
|
|
|
|
/*
|
|
blogic_inithoststruct initializes the fields in the SCSI Host
|
|
structure. The base, io_port, n_io_ports, irq, and dma_channel fields in the
|
|
SCSI Host structure are intentionally left uninitialized, as this driver
|
|
handles acquisition and release of these resources explicitly, as well as
|
|
ensuring exclusive access to the Host Adapter hardware and data structures
|
|
through explicit acquisition and release of the Host Adapter's Lock.
|
|
*/
|
|
|
|
static void __init blogic_inithoststruct(struct blogic_adapter *adapter,
|
|
struct Scsi_Host *host)
|
|
{
|
|
host->max_id = adapter->maxdev;
|
|
host->max_lun = adapter->maxlun;
|
|
host->max_channel = 0;
|
|
host->unique_id = adapter->io_addr;
|
|
host->this_id = adapter->scsi_id;
|
|
host->can_queue = adapter->drvr_qdepth;
|
|
host->sg_tablesize = adapter->drvr_sglimit;
|
|
host->unchecked_isa_dma = adapter->need_bouncebuf;
|
|
host->cmd_per_lun = adapter->untag_qdepth;
|
|
}
|
|
|
|
/*
|
|
blogic_slaveconfig will actually set the queue depth on individual
|
|
scsi devices as they are permanently added to the device chain. We
|
|
shamelessly rip off the SelectQueueDepths code to make this work mostly
|
|
like it used to. Since we don't get called once at the end of the scan
|
|
but instead get called for each device, we have to do things a bit
|
|
differently.
|
|
*/
|
|
static int blogic_slaveconfig(struct scsi_device *dev)
|
|
{
|
|
struct blogic_adapter *adapter =
|
|
(struct blogic_adapter *) dev->host->hostdata;
|
|
int tgt_id = dev->id;
|
|
int qdepth = adapter->qdepth[tgt_id];
|
|
|
|
if (adapter->tgt_flags[tgt_id].tagq_ok &&
|
|
(adapter->tagq_ok & (1 << tgt_id))) {
|
|
if (qdepth == 0)
|
|
qdepth = BLOGIC_MAX_AUTO_TAG_DEPTH;
|
|
adapter->qdepth[tgt_id] = qdepth;
|
|
scsi_change_queue_depth(dev, qdepth);
|
|
} else {
|
|
adapter->tagq_ok &= ~(1 << tgt_id);
|
|
qdepth = adapter->untag_qdepth;
|
|
adapter->qdepth[tgt_id] = qdepth;
|
|
scsi_change_queue_depth(dev, qdepth);
|
|
}
|
|
qdepth = 0;
|
|
for (tgt_id = 0; tgt_id < adapter->maxdev; tgt_id++)
|
|
if (adapter->tgt_flags[tgt_id].tgt_exists)
|
|
qdepth += adapter->qdepth[tgt_id];
|
|
if (qdepth > adapter->alloc_ccbs)
|
|
blogic_create_addlccbs(adapter, qdepth - adapter->alloc_ccbs,
|
|
false);
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
blogic_init probes for BusLogic Host Adapters at the standard
|
|
I/O Addresses where they may be located, initializing, registering, and
|
|
reporting the configuration of each BusLogic Host Adapter it finds. It
|
|
returns the number of BusLogic Host Adapters successfully initialized and
|
|
registered.
|
|
*/
|
|
|
|
static int __init blogic_init(void)
|
|
{
|
|
int adapter_count = 0, drvr_optindex = 0, probeindex;
|
|
struct blogic_adapter *adapter;
|
|
int ret = 0;
|
|
|
|
#ifdef MODULE
|
|
if (BusLogic)
|
|
blogic_setup(BusLogic);
|
|
#endif
|
|
|
|
if (blogic_probe_options.noprobe)
|
|
return -ENODEV;
|
|
blogic_probeinfo_list =
|
|
kcalloc(BLOGIC_MAX_ADAPTERS, sizeof(struct blogic_probeinfo),
|
|
GFP_KERNEL);
|
|
if (blogic_probeinfo_list == NULL) {
|
|
blogic_err("BusLogic: Unable to allocate Probe Info List\n",
|
|
NULL);
|
|
return -ENOMEM;
|
|
}
|
|
|
|
adapter = kzalloc(sizeof(struct blogic_adapter), GFP_KERNEL);
|
|
if (adapter == NULL) {
|
|
kfree(blogic_probeinfo_list);
|
|
blogic_err("BusLogic: Unable to allocate Prototype Host Adapter\n", NULL);
|
|
return -ENOMEM;
|
|
}
|
|
|
|
#ifdef MODULE
|
|
if (BusLogic != NULL)
|
|
blogic_setup(BusLogic);
|
|
#endif
|
|
blogic_init_probeinfo_list(adapter);
|
|
for (probeindex = 0; probeindex < blogic_probeinfo_count; probeindex++) {
|
|
struct blogic_probeinfo *probeinfo =
|
|
&blogic_probeinfo_list[probeindex];
|
|
struct blogic_adapter *myadapter = adapter;
|
|
struct Scsi_Host *host;
|
|
|
|
if (probeinfo->io_addr == 0)
|
|
continue;
|
|
memset(myadapter, 0, sizeof(struct blogic_adapter));
|
|
myadapter->adapter_type = probeinfo->adapter_type;
|
|
myadapter->adapter_bus_type = probeinfo->adapter_bus_type;
|
|
myadapter->io_addr = probeinfo->io_addr;
|
|
myadapter->pci_addr = probeinfo->pci_addr;
|
|
myadapter->bus = probeinfo->bus;
|
|
myadapter->dev = probeinfo->dev;
|
|
myadapter->pci_device = probeinfo->pci_device;
|
|
myadapter->irq_ch = probeinfo->irq_ch;
|
|
myadapter->addr_count =
|
|
blogic_adapter_addr_count[myadapter->adapter_type];
|
|
|
|
/*
|
|
Make sure region is free prior to probing.
|
|
*/
|
|
if (!request_region(myadapter->io_addr, myadapter->addr_count,
|
|
"BusLogic"))
|
|
continue;
|
|
/*
|
|
Probe the Host Adapter. If unsuccessful, abort further
|
|
initialization.
|
|
*/
|
|
if (!blogic_probe(myadapter)) {
|
|
release_region(myadapter->io_addr,
|
|
myadapter->addr_count);
|
|
continue;
|
|
}
|
|
/*
|
|
Hard Reset the Host Adapter. If unsuccessful, abort further
|
|
initialization.
|
|
*/
|
|
if (!blogic_hwreset(myadapter, true)) {
|
|
release_region(myadapter->io_addr,
|
|
myadapter->addr_count);
|
|
continue;
|
|
}
|
|
/*
|
|
Check the Host Adapter. If unsuccessful, abort further
|
|
initialization.
|
|
*/
|
|
if (!blogic_checkadapter(myadapter)) {
|
|
release_region(myadapter->io_addr,
|
|
myadapter->addr_count);
|
|
continue;
|
|
}
|
|
/*
|
|
Initialize the Driver Options field if provided.
|
|
*/
|
|
if (drvr_optindex < blogic_drvr_options_count)
|
|
myadapter->drvr_opts =
|
|
&blogic_drvr_options[drvr_optindex++];
|
|
/*
|
|
Announce the Driver Version and Date, Author's Name,
|
|
Copyright Notice, and Electronic Mail Address.
|
|
*/
|
|
blogic_announce_drvr(myadapter);
|
|
/*
|
|
Register the SCSI Host structure.
|
|
*/
|
|
|
|
host = scsi_host_alloc(&blogic_template,
|
|
sizeof(struct blogic_adapter));
|
|
if (host == NULL) {
|
|
release_region(myadapter->io_addr,
|
|
myadapter->addr_count);
|
|
continue;
|
|
}
|
|
myadapter = (struct blogic_adapter *) host->hostdata;
|
|
memcpy(myadapter, adapter, sizeof(struct blogic_adapter));
|
|
myadapter->scsi_host = host;
|
|
myadapter->host_no = host->host_no;
|
|
/*
|
|
Add Host Adapter to the end of the list of registered
|
|
BusLogic Host Adapters.
|
|
*/
|
|
list_add_tail(&myadapter->host_list, &blogic_host_list);
|
|
|
|
/*
|
|
Read the Host Adapter Configuration, Configure the Host
|
|
Adapter, Acquire the System Resources necessary to use
|
|
the Host Adapter, then Create the Initial CCBs, Initialize
|
|
the Host Adapter, and finally perform Target Device
|
|
Inquiry. From this point onward, any failure will be
|
|
assumed to be due to a problem with the Host Adapter,
|
|
rather than due to having mistakenly identified this port
|
|
as belonging to a BusLogic Host Adapter. The I/O Address
|
|
range will not be released, thereby preventing it from
|
|
being incorrectly identified as any other type of Host
|
|
Adapter.
|
|
*/
|
|
if (blogic_rdconfig(myadapter) &&
|
|
blogic_reportconfig(myadapter) &&
|
|
blogic_getres(myadapter) &&
|
|
blogic_create_initccbs(myadapter) &&
|
|
blogic_initadapter(myadapter) &&
|
|
blogic_inquiry(myadapter)) {
|
|
/*
|
|
Initialization has been completed successfully.
|
|
Release and re-register usage of the I/O Address
|
|
range so that the Model Name of the Host Adapter
|
|
will appear, and initialize the SCSI Host structure.
|
|
*/
|
|
release_region(myadapter->io_addr,
|
|
myadapter->addr_count);
|
|
if (!request_region(myadapter->io_addr,
|
|
myadapter->addr_count,
|
|
myadapter->full_model)) {
|
|
printk(KERN_WARNING
|
|
"BusLogic: Release and re-register of "
|
|
"port 0x%04lx failed \n",
|
|
(unsigned long)myadapter->io_addr);
|
|
blogic_destroy_ccbs(myadapter);
|
|
blogic_relres(myadapter);
|
|
list_del(&myadapter->host_list);
|
|
scsi_host_put(host);
|
|
ret = -ENOMEM;
|
|
} else {
|
|
blogic_inithoststruct(myadapter,
|
|
host);
|
|
if (scsi_add_host(host, myadapter->pci_device
|
|
? &myadapter->pci_device->dev
|
|
: NULL)) {
|
|
printk(KERN_WARNING
|
|
"BusLogic: scsi_add_host()"
|
|
"failed!\n");
|
|
blogic_destroy_ccbs(myadapter);
|
|
blogic_relres(myadapter);
|
|
list_del(&myadapter->host_list);
|
|
scsi_host_put(host);
|
|
ret = -ENODEV;
|
|
} else {
|
|
scsi_scan_host(host);
|
|
adapter_count++;
|
|
}
|
|
}
|
|
} else {
|
|
/*
|
|
An error occurred during Host Adapter Configuration
|
|
Querying, Host Adapter Configuration, Resource
|
|
Acquisition, CCB Creation, Host Adapter
|
|
Initialization, or Target Device Inquiry, so
|
|
remove Host Adapter from the list of registered
|
|
BusLogic Host Adapters, destroy the CCBs, Release
|
|
the System Resources, and Unregister the SCSI
|
|
Host.
|
|
*/
|
|
blogic_destroy_ccbs(myadapter);
|
|
blogic_relres(myadapter);
|
|
list_del(&myadapter->host_list);
|
|
scsi_host_put(host);
|
|
ret = -ENODEV;
|
|
}
|
|
}
|
|
kfree(adapter);
|
|
kfree(blogic_probeinfo_list);
|
|
blogic_probeinfo_list = NULL;
|
|
return ret;
|
|
}
|
|
|
|
|
|
/*
|
|
blogic_deladapter releases all resources previously acquired to
|
|
support a specific Host Adapter, including the I/O Address range, and
|
|
unregisters the BusLogic Host Adapter.
|
|
*/
|
|
|
|
static int __exit blogic_deladapter(struct blogic_adapter *adapter)
|
|
{
|
|
struct Scsi_Host *host = adapter->scsi_host;
|
|
|
|
scsi_remove_host(host);
|
|
|
|
/*
|
|
FlashPoint Host Adapters must first be released by the FlashPoint
|
|
SCCB Manager.
|
|
*/
|
|
if (blogic_flashpoint_type(adapter))
|
|
FlashPoint_ReleaseHostAdapter(adapter->cardhandle);
|
|
/*
|
|
Destroy the CCBs and release any system resources acquired to
|
|
support Host Adapter.
|
|
*/
|
|
blogic_destroy_ccbs(adapter);
|
|
blogic_relres(adapter);
|
|
/*
|
|
Release usage of the I/O Address range.
|
|
*/
|
|
release_region(adapter->io_addr, adapter->addr_count);
|
|
/*
|
|
Remove Host Adapter from the list of registered BusLogic
|
|
Host Adapters.
|
|
*/
|
|
list_del(&adapter->host_list);
|
|
|
|
scsi_host_put(host);
|
|
return 0;
|
|
}
|
|
|
|
|
|
/*
|
|
blogic_qcompleted_ccb queues CCB for completion processing.
|
|
*/
|
|
|
|
static void blogic_qcompleted_ccb(struct blogic_ccb *ccb)
|
|
{
|
|
struct blogic_adapter *adapter = ccb->adapter;
|
|
|
|
ccb->status = BLOGIC_CCB_COMPLETE;
|
|
ccb->next = NULL;
|
|
if (adapter->firstccb == NULL) {
|
|
adapter->firstccb = ccb;
|
|
adapter->lastccb = ccb;
|
|
} else {
|
|
adapter->lastccb->next = ccb;
|
|
adapter->lastccb = ccb;
|
|
}
|
|
adapter->active_cmds[ccb->tgt_id]--;
|
|
}
|
|
|
|
|
|
/*
|
|
blogic_resultcode computes a SCSI Subsystem Result Code from
|
|
the Host Adapter Status and Target Device Status.
|
|
*/
|
|
|
|
static int blogic_resultcode(struct blogic_adapter *adapter,
|
|
enum blogic_adapter_status adapter_status,
|
|
enum blogic_tgt_status tgt_status)
|
|
{
|
|
int hoststatus;
|
|
|
|
switch (adapter_status) {
|
|
case BLOGIC_CMD_CMPLT_NORMAL:
|
|
case BLOGIC_LINK_CMD_CMPLT:
|
|
case BLOGIC_LINK_CMD_CMPLT_FLAG:
|
|
hoststatus = DID_OK;
|
|
break;
|
|
case BLOGIC_SELECT_TIMEOUT:
|
|
hoststatus = DID_TIME_OUT;
|
|
break;
|
|
case BLOGIC_INVALID_OUTBOX_CODE:
|
|
case BLOGIC_INVALID_CMD_CODE:
|
|
case BLOGIC_BAD_CMD_PARAM:
|
|
blogic_warn("BusLogic Driver Protocol Error 0x%02X\n",
|
|
adapter, adapter_status);
|
|
fallthrough;
|
|
case BLOGIC_DATA_UNDERRUN:
|
|
case BLOGIC_DATA_OVERRUN:
|
|
case BLOGIC_NOEXPECT_BUSFREE:
|
|
case BLOGIC_LINKCCB_BADLUN:
|
|
case BLOGIC_AUTOREQSENSE_FAIL:
|
|
case BLOGIC_TAGQUEUE_REJECT:
|
|
case BLOGIC_BAD_MSG_RCVD:
|
|
case BLOGIC_HW_FAIL:
|
|
case BLOGIC_BAD_RECONNECT:
|
|
case BLOGIC_ABRT_QUEUE:
|
|
case BLOGIC_ADAPTER_SW_ERROR:
|
|
case BLOGIC_HW_TIMEOUT:
|
|
case BLOGIC_PARITY_ERR:
|
|
hoststatus = DID_ERROR;
|
|
break;
|
|
case BLOGIC_INVALID_BUSPHASE:
|
|
case BLOGIC_NORESPONSE_TO_ATN:
|
|
case BLOGIC_HW_RESET:
|
|
case BLOGIC_RST_FROM_OTHERDEV:
|
|
case BLOGIC_HW_BDR:
|
|
hoststatus = DID_RESET;
|
|
break;
|
|
default:
|
|
blogic_warn("Unknown Host Adapter Status 0x%02X\n", adapter,
|
|
adapter_status);
|
|
hoststatus = DID_ERROR;
|
|
break;
|
|
}
|
|
return (hoststatus << 16) | tgt_status;
|
|
}
|
|
|
|
|
|
/*
|
|
blogic_scan_inbox scans the Incoming Mailboxes saving any
|
|
Incoming Mailbox entries for completion processing.
|
|
*/
|
|
|
|
static void blogic_scan_inbox(struct blogic_adapter *adapter)
|
|
{
|
|
/*
|
|
Scan through the Incoming Mailboxes in Strict Round Robin
|
|
fashion, saving any completed CCBs for further processing. It
|
|
is essential that for each CCB and SCSI Command issued, command
|
|
completion processing is performed exactly once. Therefore,
|
|
only Incoming Mailboxes with completion code Command Completed
|
|
Without Error, Command Completed With Error, or Command Aborted
|
|
At Host Request are saved for completion processing. When an
|
|
Incoming Mailbox has a completion code of Aborted Command Not
|
|
Found, the CCB had already completed or been aborted before the
|
|
current Abort request was processed, and so completion processing
|
|
has already occurred and no further action should be taken.
|
|
*/
|
|
struct blogic_inbox *next_inbox = adapter->next_inbox;
|
|
enum blogic_cmplt_code comp_code;
|
|
|
|
while ((comp_code = next_inbox->comp_code) != BLOGIC_INBOX_FREE) {
|
|
/*
|
|
We are only allowed to do this because we limit our
|
|
architectures we run on to machines where bus_to_virt(
|
|
actually works. There *needs* to be a dma_addr_to_virt()
|
|
in the new PCI DMA mapping interface to replace
|
|
bus_to_virt() or else this code is going to become very
|
|
innefficient.
|
|
*/
|
|
struct blogic_ccb *ccb =
|
|
(struct blogic_ccb *) bus_to_virt(next_inbox->ccb);
|
|
if (comp_code != BLOGIC_CMD_NOTFOUND) {
|
|
if (ccb->status == BLOGIC_CCB_ACTIVE ||
|
|
ccb->status == BLOGIC_CCB_RESET) {
|
|
/*
|
|
Save the Completion Code for this CCB and
|
|
queue the CCB for completion processing.
|
|
*/
|
|
ccb->comp_code = comp_code;
|
|
blogic_qcompleted_ccb(ccb);
|
|
} else {
|
|
/*
|
|
If a CCB ever appears in an Incoming Mailbox
|
|
and is not marked as status Active or Reset,
|
|
then there is most likely a bug in
|
|
the Host Adapter firmware.
|
|
*/
|
|
blogic_warn("Illegal CCB #%ld status %d in Incoming Mailbox\n", adapter, ccb->serial, ccb->status);
|
|
}
|
|
}
|
|
next_inbox->comp_code = BLOGIC_INBOX_FREE;
|
|
if (++next_inbox > adapter->last_inbox)
|
|
next_inbox = adapter->first_inbox;
|
|
}
|
|
adapter->next_inbox = next_inbox;
|
|
}
|
|
|
|
|
|
/*
|
|
blogic_process_ccbs iterates over the completed CCBs for Host
|
|
Adapter setting the SCSI Command Result Codes, deallocating the CCBs, and
|
|
calling the SCSI Subsystem Completion Routines. The Host Adapter's Lock
|
|
should already have been acquired by the caller.
|
|
*/
|
|
|
|
static void blogic_process_ccbs(struct blogic_adapter *adapter)
|
|
{
|
|
if (adapter->processing_ccbs)
|
|
return;
|
|
adapter->processing_ccbs = true;
|
|
while (adapter->firstccb != NULL) {
|
|
struct blogic_ccb *ccb = adapter->firstccb;
|
|
struct scsi_cmnd *command = ccb->command;
|
|
adapter->firstccb = ccb->next;
|
|
if (adapter->firstccb == NULL)
|
|
adapter->lastccb = NULL;
|
|
/*
|
|
Process the Completed CCB.
|
|
*/
|
|
if (ccb->opcode == BLOGIC_BDR) {
|
|
int tgt_id = ccb->tgt_id;
|
|
|
|
blogic_warn("Bus Device Reset CCB #%ld to Target %d Completed\n", adapter, ccb->serial, tgt_id);
|
|
blogic_inc_count(&adapter->tgt_stats[tgt_id].bdr_done);
|
|
adapter->tgt_flags[tgt_id].tagq_active = false;
|
|
adapter->cmds_since_rst[tgt_id] = 0;
|
|
adapter->last_resetdone[tgt_id] = jiffies;
|
|
/*
|
|
Place CCB back on the Host Adapter's free list.
|
|
*/
|
|
blogic_dealloc_ccb(ccb, 1);
|
|
#if 0 /* this needs to be redone different for new EH */
|
|
/*
|
|
Bus Device Reset CCBs have the command field
|
|
non-NULL only when a Bus Device Reset was requested
|
|
for a command that did not have a currently active
|
|
CCB in the Host Adapter (i.e., a Synchronous Bus
|
|
Device Reset), and hence would not have its
|
|
Completion Routine called otherwise.
|
|
*/
|
|
while (command != NULL) {
|
|
struct scsi_cmnd *nxt_cmd =
|
|
command->reset_chain;
|
|
command->reset_chain = NULL;
|
|
command->result = DID_RESET << 16;
|
|
command->scsi_done(command);
|
|
command = nxt_cmd;
|
|
}
|
|
#endif
|
|
/*
|
|
Iterate over the CCBs for this Host Adapter
|
|
performing completion processing for any CCBs
|
|
marked as Reset for this Target.
|
|
*/
|
|
for (ccb = adapter->all_ccbs; ccb != NULL;
|
|
ccb = ccb->next_all)
|
|
if (ccb->status == BLOGIC_CCB_RESET &&
|
|
ccb->tgt_id == tgt_id) {
|
|
command = ccb->command;
|
|
blogic_dealloc_ccb(ccb, 1);
|
|
adapter->active_cmds[tgt_id]--;
|
|
command->result = DID_RESET << 16;
|
|
command->scsi_done(command);
|
|
}
|
|
adapter->bdr_pend[tgt_id] = NULL;
|
|
} else {
|
|
/*
|
|
Translate the Completion Code, Host Adapter Status,
|
|
and Target Device Status into a SCSI Subsystem
|
|
Result Code.
|
|
*/
|
|
switch (ccb->comp_code) {
|
|
case BLOGIC_INBOX_FREE:
|
|
case BLOGIC_CMD_NOTFOUND:
|
|
case BLOGIC_INVALID_CCB:
|
|
blogic_warn("CCB #%ld to Target %d Impossible State\n", adapter, ccb->serial, ccb->tgt_id);
|
|
break;
|
|
case BLOGIC_CMD_COMPLETE_GOOD:
|
|
adapter->tgt_stats[ccb->tgt_id]
|
|
.cmds_complete++;
|
|
adapter->tgt_flags[ccb->tgt_id]
|
|
.cmd_good = true;
|
|
command->result = DID_OK << 16;
|
|
break;
|
|
case BLOGIC_CMD_ABORT_BY_HOST:
|
|
blogic_warn("CCB #%ld to Target %d Aborted\n",
|
|
adapter, ccb->serial, ccb->tgt_id);
|
|
blogic_inc_count(&adapter->tgt_stats[ccb->tgt_id].aborts_done);
|
|
command->result = DID_ABORT << 16;
|
|
break;
|
|
case BLOGIC_CMD_COMPLETE_ERROR:
|
|
command->result = blogic_resultcode(adapter,
|
|
ccb->adapter_status, ccb->tgt_status);
|
|
if (ccb->adapter_status != BLOGIC_SELECT_TIMEOUT) {
|
|
adapter->tgt_stats[ccb->tgt_id]
|
|
.cmds_complete++;
|
|
if (blogic_global_options.trace_err) {
|
|
int i;
|
|
blogic_notice("CCB #%ld Target %d: Result %X Host "
|
|
"Adapter Status %02X Target Status %02X\n", adapter, ccb->serial, ccb->tgt_id, command->result, ccb->adapter_status, ccb->tgt_status);
|
|
blogic_notice("CDB ", adapter);
|
|
for (i = 0; i < ccb->cdblen; i++)
|
|
blogic_notice(" %02X", adapter, ccb->cdb[i]);
|
|
blogic_notice("\n", adapter);
|
|
blogic_notice("Sense ", adapter);
|
|
for (i = 0; i < ccb->sense_datalen; i++)
|
|
blogic_notice(" %02X", adapter, command->sense_buffer[i]);
|
|
blogic_notice("\n", adapter);
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
/*
|
|
When an INQUIRY command completes normally, save the
|
|
CmdQue (Tagged Queuing Supported) and WBus16 (16 Bit
|
|
Wide Data Transfers Supported) bits.
|
|
*/
|
|
if (ccb->cdb[0] == INQUIRY && ccb->cdb[1] == 0 &&
|
|
ccb->adapter_status == BLOGIC_CMD_CMPLT_NORMAL) {
|
|
struct blogic_tgt_flags *tgt_flags =
|
|
&adapter->tgt_flags[ccb->tgt_id];
|
|
struct scsi_inquiry *inquiry =
|
|
(struct scsi_inquiry *) scsi_sglist(command);
|
|
tgt_flags->tgt_exists = true;
|
|
tgt_flags->tagq_ok = inquiry->CmdQue;
|
|
tgt_flags->wide_ok = inquiry->WBus16;
|
|
}
|
|
/*
|
|
Place CCB back on the Host Adapter's free list.
|
|
*/
|
|
blogic_dealloc_ccb(ccb, 1);
|
|
/*
|
|
Call the SCSI Command Completion Routine.
|
|
*/
|
|
command->scsi_done(command);
|
|
}
|
|
}
|
|
adapter->processing_ccbs = false;
|
|
}
|
|
|
|
|
|
/*
|
|
blogic_inthandler handles hardware interrupts from BusLogic Host
|
|
Adapters.
|
|
*/
|
|
|
|
static irqreturn_t blogic_inthandler(int irq_ch, void *devid)
|
|
{
|
|
struct blogic_adapter *adapter = (struct blogic_adapter *) devid;
|
|
unsigned long processor_flag;
|
|
/*
|
|
Acquire exclusive access to Host Adapter.
|
|
*/
|
|
spin_lock_irqsave(adapter->scsi_host->host_lock, processor_flag);
|
|
/*
|
|
Handle Interrupts appropriately for each Host Adapter type.
|
|
*/
|
|
if (blogic_multimaster_type(adapter)) {
|
|
union blogic_int_reg intreg;
|
|
/*
|
|
Read the Host Adapter Interrupt Register.
|
|
*/
|
|
intreg.all = blogic_rdint(adapter);
|
|
if (intreg.ir.int_valid) {
|
|
/*
|
|
Acknowledge the interrupt and reset the Host Adapter
|
|
Interrupt Register.
|
|
*/
|
|
blogic_intreset(adapter);
|
|
/*
|
|
Process valid External SCSI Bus Reset and Incoming
|
|
Mailbox Loaded Interrupts. Command Complete
|
|
Interrupts are noted, and Outgoing Mailbox Available
|
|
Interrupts are ignored, as they are never enabled.
|
|
*/
|
|
if (intreg.ir.ext_busreset)
|
|
adapter->adapter_extreset = true;
|
|
else if (intreg.ir.mailin_loaded)
|
|
blogic_scan_inbox(adapter);
|
|
else if (intreg.ir.cmd_complete)
|
|
adapter->adapter_cmd_complete = true;
|
|
}
|
|
} else {
|
|
/*
|
|
Check if there is a pending interrupt for this Host Adapter.
|
|
*/
|
|
if (FlashPoint_InterruptPending(adapter->cardhandle))
|
|
switch (FlashPoint_HandleInterrupt(adapter->cardhandle)) {
|
|
case FPOINT_NORMAL_INT:
|
|
break;
|
|
case FPOINT_EXT_RESET:
|
|
adapter->adapter_extreset = true;
|
|
break;
|
|
case FPOINT_INTERN_ERR:
|
|
blogic_warn("Internal FlashPoint Error detected - Resetting Host Adapter\n", adapter);
|
|
adapter->adapter_intern_err = true;
|
|
break;
|
|
}
|
|
}
|
|
/*
|
|
Process any completed CCBs.
|
|
*/
|
|
if (adapter->firstccb != NULL)
|
|
blogic_process_ccbs(adapter);
|
|
/*
|
|
Reset the Host Adapter if requested.
|
|
*/
|
|
if (adapter->adapter_extreset) {
|
|
blogic_warn("Resetting %s due to External SCSI Bus Reset\n", adapter, adapter->full_model);
|
|
blogic_inc_count(&adapter->ext_resets);
|
|
blogic_resetadapter(adapter, false);
|
|
adapter->adapter_extreset = false;
|
|
} else if (adapter->adapter_intern_err) {
|
|
blogic_warn("Resetting %s due to Host Adapter Internal Error\n", adapter, adapter->full_model);
|
|
blogic_inc_count(&adapter->adapter_intern_errors);
|
|
blogic_resetadapter(adapter, true);
|
|
adapter->adapter_intern_err = false;
|
|
}
|
|
/*
|
|
Release exclusive access to Host Adapter.
|
|
*/
|
|
spin_unlock_irqrestore(adapter->scsi_host->host_lock, processor_flag);
|
|
return IRQ_HANDLED;
|
|
}
|
|
|
|
|
|
/*
|
|
blogic_write_outbox places CCB and Action Code into an Outgoing
|
|
Mailbox for execution by Host Adapter. The Host Adapter's Lock should
|
|
already have been acquired by the caller.
|
|
*/
|
|
|
|
static bool blogic_write_outbox(struct blogic_adapter *adapter,
|
|
enum blogic_action action, struct blogic_ccb *ccb)
|
|
{
|
|
struct blogic_outbox *next_outbox;
|
|
|
|
next_outbox = adapter->next_outbox;
|
|
if (next_outbox->action == BLOGIC_OUTBOX_FREE) {
|
|
ccb->status = BLOGIC_CCB_ACTIVE;
|
|
/*
|
|
The CCB field must be written before the Action Code field
|
|
since the Host Adapter is operating asynchronously and the
|
|
locking code does not protect against simultaneous access
|
|
by the Host Adapter.
|
|
*/
|
|
next_outbox->ccb = ccb->dma_handle;
|
|
next_outbox->action = action;
|
|
blogic_execmbox(adapter);
|
|
if (++next_outbox > adapter->last_outbox)
|
|
next_outbox = adapter->first_outbox;
|
|
adapter->next_outbox = next_outbox;
|
|
if (action == BLOGIC_MBOX_START) {
|
|
adapter->active_cmds[ccb->tgt_id]++;
|
|
if (ccb->opcode != BLOGIC_BDR)
|
|
adapter->tgt_stats[ccb->tgt_id].cmds_tried++;
|
|
}
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
/* Error Handling (EH) support */
|
|
|
|
static int blogic_hostreset(struct scsi_cmnd *SCpnt)
|
|
{
|
|
struct blogic_adapter *adapter =
|
|
(struct blogic_adapter *) SCpnt->device->host->hostdata;
|
|
|
|
unsigned int id = SCpnt->device->id;
|
|
struct blogic_tgt_stats *stats = &adapter->tgt_stats[id];
|
|
int rc;
|
|
|
|
spin_lock_irq(SCpnt->device->host->host_lock);
|
|
|
|
blogic_inc_count(&stats->adapter_reset_req);
|
|
|
|
rc = blogic_resetadapter(adapter, false);
|
|
spin_unlock_irq(SCpnt->device->host->host_lock);
|
|
return rc;
|
|
}
|
|
|
|
/*
|
|
blogic_qcmd creates a CCB for Command and places it into an
|
|
Outgoing Mailbox for execution by the associated Host Adapter.
|
|
*/
|
|
|
|
static int blogic_qcmd_lck(struct scsi_cmnd *command,
|
|
void (*comp_cb) (struct scsi_cmnd *))
|
|
{
|
|
struct blogic_adapter *adapter =
|
|
(struct blogic_adapter *) command->device->host->hostdata;
|
|
struct blogic_tgt_flags *tgt_flags =
|
|
&adapter->tgt_flags[command->device->id];
|
|
struct blogic_tgt_stats *tgt_stats = adapter->tgt_stats;
|
|
unsigned char *cdb = command->cmnd;
|
|
int cdblen = command->cmd_len;
|
|
int tgt_id = command->device->id;
|
|
int lun = command->device->lun;
|
|
int buflen = scsi_bufflen(command);
|
|
int count;
|
|
struct blogic_ccb *ccb;
|
|
dma_addr_t sense_buf;
|
|
|
|
/*
|
|
SCSI REQUEST_SENSE commands will be executed automatically by the
|
|
Host Adapter for any errors, so they should not be executed
|
|
explicitly unless the Sense Data is zero indicating that no error
|
|
occurred.
|
|
*/
|
|
if (cdb[0] == REQUEST_SENSE && command->sense_buffer[0] != 0) {
|
|
command->result = DID_OK << 16;
|
|
comp_cb(command);
|
|
return 0;
|
|
}
|
|
/*
|
|
Allocate a CCB from the Host Adapter's free list. In the unlikely
|
|
event that there are none available and memory allocation fails,
|
|
wait 1 second and try again. If that fails, the Host Adapter is
|
|
probably hung so signal an error as a Host Adapter Hard Reset
|
|
should be initiated soon.
|
|
*/
|
|
ccb = blogic_alloc_ccb(adapter);
|
|
if (ccb == NULL) {
|
|
spin_unlock_irq(adapter->scsi_host->host_lock);
|
|
blogic_delay(1);
|
|
spin_lock_irq(adapter->scsi_host->host_lock);
|
|
ccb = blogic_alloc_ccb(adapter);
|
|
if (ccb == NULL) {
|
|
command->result = DID_ERROR << 16;
|
|
comp_cb(command);
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
/*
|
|
Initialize the fields in the BusLogic Command Control Block (CCB).
|
|
*/
|
|
count = scsi_dma_map(command);
|
|
BUG_ON(count < 0);
|
|
if (count) {
|
|
struct scatterlist *sg;
|
|
int i;
|
|
|
|
ccb->opcode = BLOGIC_INITIATOR_CCB_SG;
|
|
ccb->datalen = count * sizeof(struct blogic_sg_seg);
|
|
if (blogic_multimaster_type(adapter))
|
|
ccb->data = (void *)((unsigned int) ccb->dma_handle +
|
|
((unsigned long) &ccb->sglist -
|
|
(unsigned long) ccb));
|
|
else
|
|
ccb->data = ccb->sglist;
|
|
|
|
scsi_for_each_sg(command, sg, count, i) {
|
|
ccb->sglist[i].segbytes = sg_dma_len(sg);
|
|
ccb->sglist[i].segdata = sg_dma_address(sg);
|
|
}
|
|
} else if (!count) {
|
|
ccb->opcode = BLOGIC_INITIATOR_CCB;
|
|
ccb->datalen = buflen;
|
|
ccb->data = 0;
|
|
}
|
|
|
|
switch (cdb[0]) {
|
|
case READ_6:
|
|
case READ_10:
|
|
ccb->datadir = BLOGIC_DATAIN_CHECKED;
|
|
tgt_stats[tgt_id].read_cmds++;
|
|
blogic_addcount(&tgt_stats[tgt_id].bytesread, buflen);
|
|
blogic_incszbucket(tgt_stats[tgt_id].read_sz_buckets, buflen);
|
|
break;
|
|
case WRITE_6:
|
|
case WRITE_10:
|
|
ccb->datadir = BLOGIC_DATAOUT_CHECKED;
|
|
tgt_stats[tgt_id].write_cmds++;
|
|
blogic_addcount(&tgt_stats[tgt_id].byteswritten, buflen);
|
|
blogic_incszbucket(tgt_stats[tgt_id].write_sz_buckets, buflen);
|
|
break;
|
|
default:
|
|
ccb->datadir = BLOGIC_UNCHECKED_TX;
|
|
break;
|
|
}
|
|
ccb->cdblen = cdblen;
|
|
ccb->adapter_status = 0;
|
|
ccb->tgt_status = 0;
|
|
ccb->tgt_id = tgt_id;
|
|
ccb->lun = lun;
|
|
ccb->tag_enable = false;
|
|
ccb->legacytag_enable = false;
|
|
/*
|
|
BusLogic recommends that after a Reset the first couple of
|
|
commands that are sent to a Target Device be sent in a non
|
|
Tagged Queue fashion so that the Host Adapter and Target Device
|
|
can establish Synchronous and Wide Transfer before Queue Tag
|
|
messages can interfere with the Synchronous and Wide Negotiation
|
|
messages. By waiting to enable Tagged Queuing until after the
|
|
first BLOGIC_MAX_TAG_DEPTH commands have been queued, it is
|
|
assured that after a Reset any pending commands are requeued
|
|
before Tagged Queuing is enabled and that the Tagged Queuing
|
|
message will not occur while the partition table is being printed.
|
|
In addition, some devices do not properly handle the transition
|
|
from non-tagged to tagged commands, so it is necessary to wait
|
|
until there are no pending commands for a target device
|
|
before queuing tagged commands.
|
|
*/
|
|
if (adapter->cmds_since_rst[tgt_id]++ >= BLOGIC_MAX_TAG_DEPTH &&
|
|
!tgt_flags->tagq_active &&
|
|
adapter->active_cmds[tgt_id] == 0
|
|
&& tgt_flags->tagq_ok &&
|
|
(adapter->tagq_ok & (1 << tgt_id))) {
|
|
tgt_flags->tagq_active = true;
|
|
blogic_notice("Tagged Queuing now active for Target %d\n",
|
|
adapter, tgt_id);
|
|
}
|
|
if (tgt_flags->tagq_active) {
|
|
enum blogic_queuetag queuetag = BLOGIC_SIMPLETAG;
|
|
/*
|
|
When using Tagged Queuing with Simple Queue Tags, it
|
|
appears that disk drive controllers do not guarantee that
|
|
a queued command will not remain in a disconnected state
|
|
indefinitely if commands that read or write nearer the
|
|
head position continue to arrive without interruption.
|
|
Therefore, for each Target Device this driver keeps track
|
|
of the last time either the queue was empty or an Ordered
|
|
Queue Tag was issued. If more than 4 seconds (one fifth
|
|
of the 20 second disk timeout) have elapsed since this
|
|
last sequence point, this command will be issued with an
|
|
Ordered Queue Tag rather than a Simple Queue Tag, which
|
|
forces the Target Device to complete all previously
|
|
queued commands before this command may be executed.
|
|
*/
|
|
if (adapter->active_cmds[tgt_id] == 0)
|
|
adapter->last_seqpoint[tgt_id] = jiffies;
|
|
else if (time_after(jiffies,
|
|
adapter->last_seqpoint[tgt_id] + 4 * HZ)) {
|
|
adapter->last_seqpoint[tgt_id] = jiffies;
|
|
queuetag = BLOGIC_ORDEREDTAG;
|
|
}
|
|
if (adapter->ext_lun) {
|
|
ccb->tag_enable = true;
|
|
ccb->queuetag = queuetag;
|
|
} else {
|
|
ccb->legacytag_enable = true;
|
|
ccb->legacy_tag = queuetag;
|
|
}
|
|
}
|
|
memcpy(ccb->cdb, cdb, cdblen);
|
|
ccb->sense_datalen = SCSI_SENSE_BUFFERSIZE;
|
|
ccb->command = command;
|
|
sense_buf = dma_map_single(&adapter->pci_device->dev,
|
|
command->sense_buffer, ccb->sense_datalen,
|
|
DMA_FROM_DEVICE);
|
|
if (dma_mapping_error(&adapter->pci_device->dev, sense_buf)) {
|
|
blogic_err("DMA mapping for sense data buffer failed\n",
|
|
adapter);
|
|
blogic_dealloc_ccb(ccb, 0);
|
|
return SCSI_MLQUEUE_HOST_BUSY;
|
|
}
|
|
ccb->sensedata = sense_buf;
|
|
command->scsi_done = comp_cb;
|
|
if (blogic_multimaster_type(adapter)) {
|
|
/*
|
|
Place the CCB in an Outgoing Mailbox. The higher levels
|
|
of the SCSI Subsystem should not attempt to queue more
|
|
commands than can be placed in Outgoing Mailboxes, so
|
|
there should always be one free. In the unlikely event
|
|
that there are none available, wait 1 second and try
|
|
again. If that fails, the Host Adapter is probably hung
|
|
so signal an error as a Host Adapter Hard Reset should
|
|
be initiated soon.
|
|
*/
|
|
if (!blogic_write_outbox(adapter, BLOGIC_MBOX_START, ccb)) {
|
|
spin_unlock_irq(adapter->scsi_host->host_lock);
|
|
blogic_warn("Unable to write Outgoing Mailbox - Pausing for 1 second\n", adapter);
|
|
blogic_delay(1);
|
|
spin_lock_irq(adapter->scsi_host->host_lock);
|
|
if (!blogic_write_outbox(adapter, BLOGIC_MBOX_START,
|
|
ccb)) {
|
|
blogic_warn("Still unable to write Outgoing Mailbox - Host Adapter Dead?\n", adapter);
|
|
blogic_dealloc_ccb(ccb, 1);
|
|
command->result = DID_ERROR << 16;
|
|
command->scsi_done(command);
|
|
}
|
|
}
|
|
} else {
|
|
/*
|
|
Call the FlashPoint SCCB Manager to start execution of
|
|
the CCB.
|
|
*/
|
|
ccb->status = BLOGIC_CCB_ACTIVE;
|
|
adapter->active_cmds[tgt_id]++;
|
|
tgt_stats[tgt_id].cmds_tried++;
|
|
FlashPoint_StartCCB(adapter->cardhandle, ccb);
|
|
/*
|
|
The Command may have already completed and
|
|
blogic_qcompleted_ccb been called, or it may still be
|
|
pending.
|
|
*/
|
|
if (ccb->status == BLOGIC_CCB_COMPLETE)
|
|
blogic_process_ccbs(adapter);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static DEF_SCSI_QCMD(blogic_qcmd)
|
|
|
|
#if 0
|
|
/*
|
|
blogic_abort aborts Command if possible.
|
|
*/
|
|
|
|
static int blogic_abort(struct scsi_cmnd *command)
|
|
{
|
|
struct blogic_adapter *adapter =
|
|
(struct blogic_adapter *) command->device->host->hostdata;
|
|
|
|
int tgt_id = command->device->id;
|
|
struct blogic_ccb *ccb;
|
|
blogic_inc_count(&adapter->tgt_stats[tgt_id].aborts_request);
|
|
|
|
/*
|
|
Attempt to find an Active CCB for this Command. If no Active
|
|
CCB for this Command is found, then no Abort is necessary.
|
|
*/
|
|
for (ccb = adapter->all_ccbs; ccb != NULL; ccb = ccb->next_all)
|
|
if (ccb->command == command)
|
|
break;
|
|
if (ccb == NULL) {
|
|
blogic_warn("Unable to Abort Command to Target %d - No CCB Found\n", adapter, tgt_id);
|
|
return SUCCESS;
|
|
} else if (ccb->status == BLOGIC_CCB_COMPLETE) {
|
|
blogic_warn("Unable to Abort Command to Target %d - CCB Completed\n", adapter, tgt_id);
|
|
return SUCCESS;
|
|
} else if (ccb->status == BLOGIC_CCB_RESET) {
|
|
blogic_warn("Unable to Abort Command to Target %d - CCB Reset\n", adapter, tgt_id);
|
|
return SUCCESS;
|
|
}
|
|
if (blogic_multimaster_type(adapter)) {
|
|
/*
|
|
Attempt to Abort this CCB. MultiMaster Firmware versions
|
|
prior to 5.xx do not generate Abort Tag messages, but only
|
|
generate the non-tagged Abort message. Since non-tagged
|
|
commands are not sent by the Host Adapter until the queue
|
|
of outstanding tagged commands has completed, and the
|
|
Abort message is treated as a non-tagged command, it is
|
|
effectively impossible to abort commands when Tagged
|
|
Queuing is active. Firmware version 5.xx does generate
|
|
Abort Tag messages, so it is possible to abort commands
|
|
when Tagged Queuing is active.
|
|
*/
|
|
if (adapter->tgt_flags[tgt_id].tagq_active &&
|
|
adapter->fw_ver[0] < '5') {
|
|
blogic_warn("Unable to Abort CCB #%ld to Target %d - Abort Tag Not Supported\n", adapter, ccb->serial, tgt_id);
|
|
return FAILURE;
|
|
} else if (blogic_write_outbox(adapter, BLOGIC_MBOX_ABORT,
|
|
ccb)) {
|
|
blogic_warn("Aborting CCB #%ld to Target %d\n",
|
|
adapter, ccb->serial, tgt_id);
|
|
blogic_inc_count(&adapter->tgt_stats[tgt_id].aborts_tried);
|
|
return SUCCESS;
|
|
} else {
|
|
blogic_warn("Unable to Abort CCB #%ld to Target %d - No Outgoing Mailboxes\n", adapter, ccb->serial, tgt_id);
|
|
return FAILURE;
|
|
}
|
|
} else {
|
|
/*
|
|
Call the FlashPoint SCCB Manager to abort execution of
|
|
the CCB.
|
|
*/
|
|
blogic_warn("Aborting CCB #%ld to Target %d\n", adapter,
|
|
ccb->serial, tgt_id);
|
|
blogic_inc_count(&adapter->tgt_stats[tgt_id].aborts_tried);
|
|
FlashPoint_AbortCCB(adapter->cardhandle, ccb);
|
|
/*
|
|
The Abort may have already been completed and
|
|
blogic_qcompleted_ccb been called, or it
|
|
may still be pending.
|
|
*/
|
|
if (ccb->status == BLOGIC_CCB_COMPLETE)
|
|
blogic_process_ccbs(adapter);
|
|
return SUCCESS;
|
|
}
|
|
return SUCCESS;
|
|
}
|
|
|
|
#endif
|
|
/*
|
|
blogic_resetadapter resets Host Adapter if possible, marking all
|
|
currently executing SCSI Commands as having been Reset.
|
|
*/
|
|
|
|
static int blogic_resetadapter(struct blogic_adapter *adapter, bool hard_reset)
|
|
{
|
|
struct blogic_ccb *ccb;
|
|
int tgt_id;
|
|
|
|
/*
|
|
* Attempt to Reset and Reinitialize the Host Adapter.
|
|
*/
|
|
|
|
if (!(blogic_hwreset(adapter, hard_reset) &&
|
|
blogic_initadapter(adapter))) {
|
|
blogic_err("Resetting %s Failed\n", adapter,
|
|
adapter->full_model);
|
|
return FAILURE;
|
|
}
|
|
|
|
/*
|
|
* Deallocate all currently executing CCBs.
|
|
*/
|
|
|
|
for (ccb = adapter->all_ccbs; ccb != NULL; ccb = ccb->next_all)
|
|
if (ccb->status == BLOGIC_CCB_ACTIVE)
|
|
blogic_dealloc_ccb(ccb, 1);
|
|
/*
|
|
* Wait a few seconds between the Host Adapter Hard Reset which
|
|
* initiates a SCSI Bus Reset and issuing any SCSI Commands. Some
|
|
* SCSI devices get confused if they receive SCSI Commands too soon
|
|
* after a SCSI Bus Reset.
|
|
*/
|
|
|
|
if (hard_reset) {
|
|
spin_unlock_irq(adapter->scsi_host->host_lock);
|
|
blogic_delay(adapter->bus_settle_time);
|
|
spin_lock_irq(adapter->scsi_host->host_lock);
|
|
}
|
|
|
|
for (tgt_id = 0; tgt_id < adapter->maxdev; tgt_id++) {
|
|
adapter->last_resettried[tgt_id] = jiffies;
|
|
adapter->last_resetdone[tgt_id] = jiffies;
|
|
}
|
|
return SUCCESS;
|
|
}
|
|
|
|
/*
|
|
blogic_diskparam returns the Heads/Sectors/Cylinders BIOS Disk
|
|
Parameters for Disk. The default disk geometry is 64 heads, 32 sectors, and
|
|
the appropriate number of cylinders so as not to exceed drive capacity. In
|
|
order for disks equal to or larger than 1 GB to be addressable by the BIOS
|
|
without exceeding the BIOS limitation of 1024 cylinders, Extended Translation
|
|
may be enabled in AutoSCSI on FlashPoint Host Adapters and on "W" and "C"
|
|
series MultiMaster Host Adapters, or by a dip switch setting on "S" and "A"
|
|
series MultiMaster Host Adapters. With Extended Translation enabled, drives
|
|
between 1 GB inclusive and 2 GB exclusive are given a disk geometry of 128
|
|
heads and 32 sectors, and drives above 2 GB inclusive are given a disk
|
|
geometry of 255 heads and 63 sectors. However, if the BIOS detects that the
|
|
Extended Translation setting does not match the geometry in the partition
|
|
table, then the translation inferred from the partition table will be used by
|
|
the BIOS, and a warning may be displayed.
|
|
*/
|
|
|
|
static int blogic_diskparam(struct scsi_device *sdev, struct block_device *dev,
|
|
sector_t capacity, int *params)
|
|
{
|
|
struct blogic_adapter *adapter =
|
|
(struct blogic_adapter *) sdev->host->hostdata;
|
|
struct bios_diskparam *diskparam = (struct bios_diskparam *) params;
|
|
unsigned char *buf;
|
|
|
|
if (adapter->ext_trans_enable && capacity >= 2 * 1024 * 1024 /* 1 GB in 512 byte sectors */) {
|
|
if (capacity >= 4 * 1024 * 1024 /* 2 GB in 512 byte sectors */) {
|
|
diskparam->heads = 255;
|
|
diskparam->sectors = 63;
|
|
} else {
|
|
diskparam->heads = 128;
|
|
diskparam->sectors = 32;
|
|
}
|
|
} else {
|
|
diskparam->heads = 64;
|
|
diskparam->sectors = 32;
|
|
}
|
|
diskparam->cylinders = (unsigned long) capacity / (diskparam->heads * diskparam->sectors);
|
|
buf = scsi_bios_ptable(dev);
|
|
if (buf == NULL)
|
|
return 0;
|
|
/*
|
|
If the boot sector partition table flag is valid, search for
|
|
a partition table entry whose end_head matches one of the
|
|
standard BusLogic geometry translations (64/32, 128/32, or 255/63).
|
|
*/
|
|
if (*(unsigned short *) (buf + 64) == MSDOS_LABEL_MAGIC) {
|
|
struct msdos_partition *part1_entry =
|
|
(struct msdos_partition *)buf;
|
|
struct msdos_partition *part_entry = part1_entry;
|
|
int saved_cyl = diskparam->cylinders, part_no;
|
|
unsigned char part_end_head = 0, part_end_sector = 0;
|
|
|
|
for (part_no = 0; part_no < 4; part_no++) {
|
|
part_end_head = part_entry->end_head;
|
|
part_end_sector = part_entry->end_sector & 0x3F;
|
|
if (part_end_head == 64 - 1) {
|
|
diskparam->heads = 64;
|
|
diskparam->sectors = 32;
|
|
break;
|
|
} else if (part_end_head == 128 - 1) {
|
|
diskparam->heads = 128;
|
|
diskparam->sectors = 32;
|
|
break;
|
|
} else if (part_end_head == 255 - 1) {
|
|
diskparam->heads = 255;
|
|
diskparam->sectors = 63;
|
|
break;
|
|
}
|
|
part_entry++;
|
|
}
|
|
if (part_no == 4) {
|
|
part_end_head = part1_entry->end_head;
|
|
part_end_sector = part1_entry->end_sector & 0x3F;
|
|
}
|
|
diskparam->cylinders = (unsigned long) capacity / (diskparam->heads * diskparam->sectors);
|
|
if (part_no < 4 && part_end_sector == diskparam->sectors) {
|
|
if (diskparam->cylinders != saved_cyl)
|
|
blogic_warn("Adopting Geometry %d/%d from Partition Table\n", adapter, diskparam->heads, diskparam->sectors);
|
|
} else if (part_end_head > 0 || part_end_sector > 0) {
|
|
blogic_warn("Warning: Partition Table appears to have Geometry %d/%d which is\n", adapter, part_end_head + 1, part_end_sector);
|
|
blogic_warn("not compatible with current BusLogic Host Adapter Geometry %d/%d\n", adapter, diskparam->heads, diskparam->sectors);
|
|
}
|
|
}
|
|
kfree(buf);
|
|
return 0;
|
|
}
|
|
|
|
|
|
/*
|
|
BugLogic_ProcDirectoryInfo implements /proc/scsi/BusLogic/<N>.
|
|
*/
|
|
|
|
static int blogic_write_info(struct Scsi_Host *shost, char *procbuf,
|
|
int bytes_avail)
|
|
{
|
|
struct blogic_adapter *adapter =
|
|
(struct blogic_adapter *) shost->hostdata;
|
|
struct blogic_tgt_stats *tgt_stats;
|
|
|
|
tgt_stats = adapter->tgt_stats;
|
|
adapter->ext_resets = 0;
|
|
adapter->adapter_intern_errors = 0;
|
|
memset(tgt_stats, 0, BLOGIC_MAXDEV * sizeof(struct blogic_tgt_stats));
|
|
return 0;
|
|
}
|
|
|
|
static int blogic_show_info(struct seq_file *m, struct Scsi_Host *shost)
|
|
{
|
|
struct blogic_adapter *adapter = (struct blogic_adapter *) shost->hostdata;
|
|
struct blogic_tgt_stats *tgt_stats;
|
|
int tgt;
|
|
|
|
tgt_stats = adapter->tgt_stats;
|
|
seq_write(m, adapter->msgbuf, adapter->msgbuflen);
|
|
seq_printf(m, "\n\
|
|
Current Driver Queue Depth: %d\n\
|
|
Currently Allocated CCBs: %d\n", adapter->drvr_qdepth, adapter->alloc_ccbs);
|
|
seq_puts(m, "\n\n\
|
|
DATA TRANSFER STATISTICS\n\
|
|
\n\
|
|
Target Tagged Queuing Queue Depth Active Attempted Completed\n\
|
|
====== ============== =========== ====== ========= =========\n");
|
|
for (tgt = 0; tgt < adapter->maxdev; tgt++) {
|
|
struct blogic_tgt_flags *tgt_flags = &adapter->tgt_flags[tgt];
|
|
if (!tgt_flags->tgt_exists)
|
|
continue;
|
|
seq_printf(m, " %2d %s", tgt, (tgt_flags->tagq_ok ? (tgt_flags->tagq_active ? " Active" : (adapter->tagq_ok & (1 << tgt)
|
|
? " Permitted" : " Disabled"))
|
|
: "Not Supported"));
|
|
seq_printf(m,
|
|
" %3d %3u %9u %9u\n", adapter->qdepth[tgt], adapter->active_cmds[tgt], tgt_stats[tgt].cmds_tried, tgt_stats[tgt].cmds_complete);
|
|
}
|
|
seq_puts(m, "\n\
|
|
Target Read Commands Write Commands Total Bytes Read Total Bytes Written\n\
|
|
====== ============= ============== =================== ===================\n");
|
|
for (tgt = 0; tgt < adapter->maxdev; tgt++) {
|
|
struct blogic_tgt_flags *tgt_flags = &adapter->tgt_flags[tgt];
|
|
if (!tgt_flags->tgt_exists)
|
|
continue;
|
|
seq_printf(m, " %2d %9u %9u", tgt, tgt_stats[tgt].read_cmds, tgt_stats[tgt].write_cmds);
|
|
if (tgt_stats[tgt].bytesread.billions > 0)
|
|
seq_printf(m, " %9u%09u", tgt_stats[tgt].bytesread.billions, tgt_stats[tgt].bytesread.units);
|
|
else
|
|
seq_printf(m, " %9u", tgt_stats[tgt].bytesread.units);
|
|
if (tgt_stats[tgt].byteswritten.billions > 0)
|
|
seq_printf(m, " %9u%09u\n", tgt_stats[tgt].byteswritten.billions, tgt_stats[tgt].byteswritten.units);
|
|
else
|
|
seq_printf(m, " %9u\n", tgt_stats[tgt].byteswritten.units);
|
|
}
|
|
seq_puts(m, "\n\
|
|
Target Command 0-1KB 1-2KB 2-4KB 4-8KB 8-16KB\n\
|
|
====== ======= ========= ========= ========= ========= =========\n");
|
|
for (tgt = 0; tgt < adapter->maxdev; tgt++) {
|
|
struct blogic_tgt_flags *tgt_flags = &adapter->tgt_flags[tgt];
|
|
if (!tgt_flags->tgt_exists)
|
|
continue;
|
|
seq_printf(m,
|
|
" %2d Read %9u %9u %9u %9u %9u\n", tgt,
|
|
tgt_stats[tgt].read_sz_buckets[0],
|
|
tgt_stats[tgt].read_sz_buckets[1], tgt_stats[tgt].read_sz_buckets[2], tgt_stats[tgt].read_sz_buckets[3], tgt_stats[tgt].read_sz_buckets[4]);
|
|
seq_printf(m,
|
|
" %2d Write %9u %9u %9u %9u %9u\n", tgt,
|
|
tgt_stats[tgt].write_sz_buckets[0],
|
|
tgt_stats[tgt].write_sz_buckets[1], tgt_stats[tgt].write_sz_buckets[2], tgt_stats[tgt].write_sz_buckets[3], tgt_stats[tgt].write_sz_buckets[4]);
|
|
}
|
|
seq_puts(m, "\n\
|
|
Target Command 16-32KB 32-64KB 64-128KB 128-256KB 256KB+\n\
|
|
====== ======= ========= ========= ========= ========= =========\n");
|
|
for (tgt = 0; tgt < adapter->maxdev; tgt++) {
|
|
struct blogic_tgt_flags *tgt_flags = &adapter->tgt_flags[tgt];
|
|
if (!tgt_flags->tgt_exists)
|
|
continue;
|
|
seq_printf(m,
|
|
" %2d Read %9u %9u %9u %9u %9u\n", tgt,
|
|
tgt_stats[tgt].read_sz_buckets[5],
|
|
tgt_stats[tgt].read_sz_buckets[6], tgt_stats[tgt].read_sz_buckets[7], tgt_stats[tgt].read_sz_buckets[8], tgt_stats[tgt].read_sz_buckets[9]);
|
|
seq_printf(m,
|
|
" %2d Write %9u %9u %9u %9u %9u\n", tgt,
|
|
tgt_stats[tgt].write_sz_buckets[5],
|
|
tgt_stats[tgt].write_sz_buckets[6], tgt_stats[tgt].write_sz_buckets[7], tgt_stats[tgt].write_sz_buckets[8], tgt_stats[tgt].write_sz_buckets[9]);
|
|
}
|
|
seq_puts(m, "\n\n\
|
|
ERROR RECOVERY STATISTICS\n\
|
|
\n\
|
|
Command Aborts Bus Device Resets Host Adapter Resets\n\
|
|
Target Requested Completed Requested Completed Requested Completed\n\
|
|
ID \\\\\\\\ Attempted //// \\\\\\\\ Attempted //// \\\\\\\\ Attempted ////\n\
|
|
====== ===== ===== ===== ===== ===== ===== ===== ===== =====\n");
|
|
for (tgt = 0; tgt < adapter->maxdev; tgt++) {
|
|
struct blogic_tgt_flags *tgt_flags = &adapter->tgt_flags[tgt];
|
|
if (!tgt_flags->tgt_exists)
|
|
continue;
|
|
seq_printf(m, " %2d %5d %5d %5d %5d %5d %5d %5d %5d %5d\n",
|
|
tgt, tgt_stats[tgt].aborts_request,
|
|
tgt_stats[tgt].aborts_tried,
|
|
tgt_stats[tgt].aborts_done,
|
|
tgt_stats[tgt].bdr_request,
|
|
tgt_stats[tgt].bdr_tried,
|
|
tgt_stats[tgt].bdr_done,
|
|
tgt_stats[tgt].adapter_reset_req,
|
|
tgt_stats[tgt].adapter_reset_attempt,
|
|
tgt_stats[tgt].adapter_reset_done);
|
|
}
|
|
seq_printf(m, "\nExternal Host Adapter Resets: %d\n", adapter->ext_resets);
|
|
seq_printf(m, "Host Adapter Internal Errors: %d\n", adapter->adapter_intern_errors);
|
|
return 0;
|
|
}
|
|
|
|
|
|
/*
|
|
blogic_msg prints Driver Messages.
|
|
*/
|
|
|
|
static void blogic_msg(enum blogic_msglevel msglevel, char *fmt,
|
|
struct blogic_adapter *adapter, ...)
|
|
{
|
|
static char buf[BLOGIC_LINEBUF_SIZE];
|
|
static bool begin = true;
|
|
va_list args;
|
|
int len = 0;
|
|
|
|
va_start(args, adapter);
|
|
len = vsprintf(buf, fmt, args);
|
|
va_end(args);
|
|
if (msglevel == BLOGIC_ANNOUNCE_LEVEL) {
|
|
static int msglines = 0;
|
|
strcpy(&adapter->msgbuf[adapter->msgbuflen], buf);
|
|
adapter->msgbuflen += len;
|
|
if (++msglines <= 2)
|
|
printk("%sscsi: %s", blogic_msglevelmap[msglevel], buf);
|
|
} else if (msglevel == BLOGIC_INFO_LEVEL) {
|
|
strcpy(&adapter->msgbuf[adapter->msgbuflen], buf);
|
|
adapter->msgbuflen += len;
|
|
if (begin) {
|
|
if (buf[0] != '\n' || len > 1)
|
|
printk("%sscsi%d: %s", blogic_msglevelmap[msglevel], adapter->host_no, buf);
|
|
} else
|
|
printk("%s", buf);
|
|
} else {
|
|
if (begin) {
|
|
if (adapter != NULL && adapter->adapter_initd)
|
|
printk("%sscsi%d: %s", blogic_msglevelmap[msglevel], adapter->host_no, buf);
|
|
else
|
|
printk("%s%s", blogic_msglevelmap[msglevel], buf);
|
|
} else
|
|
printk("%s", buf);
|
|
}
|
|
begin = (buf[len - 1] == '\n');
|
|
}
|
|
|
|
|
|
/*
|
|
blogic_parse parses an individual option keyword. It returns true
|
|
and updates the pointer if the keyword is recognized and false otherwise.
|
|
*/
|
|
|
|
static bool __init blogic_parse(char **str, char *keyword)
|
|
{
|
|
char *pointer = *str;
|
|
while (*keyword != '\0') {
|
|
char strch = *pointer++;
|
|
char keywordch = *keyword++;
|
|
if (strch >= 'A' && strch <= 'Z')
|
|
strch += 'a' - 'Z';
|
|
if (keywordch >= 'A' && keywordch <= 'Z')
|
|
keywordch += 'a' - 'Z';
|
|
if (strch != keywordch)
|
|
return false;
|
|
}
|
|
*str = pointer;
|
|
return true;
|
|
}
|
|
|
|
|
|
/*
|
|
blogic_parseopts handles processing of BusLogic Driver Options
|
|
specifications.
|
|
|
|
BusLogic Driver Options may be specified either via the Linux Kernel Command
|
|
Line or via the Loadable Kernel Module Installation Facility. Driver Options
|
|
for multiple host adapters may be specified either by separating the option
|
|
strings by a semicolon, or by specifying multiple "BusLogic=" strings on the
|
|
command line. Individual option specifications for a single host adapter are
|
|
separated by commas. The Probing and Debugging Options apply to all host
|
|
adapters whereas the remaining options apply individually only to the
|
|
selected host adapter.
|
|
|
|
The BusLogic Driver Probing Options are described in
|
|
<file:Documentation/scsi/BusLogic.rst>.
|
|
*/
|
|
|
|
static int __init blogic_parseopts(char *options)
|
|
{
|
|
while (true) {
|
|
struct blogic_drvr_options *drvr_opts =
|
|
&blogic_drvr_options[blogic_drvr_options_count++];
|
|
int tgt_id;
|
|
|
|
memset(drvr_opts, 0, sizeof(struct blogic_drvr_options));
|
|
while (*options != '\0' && *options != ';') {
|
|
/* Probing Options. */
|
|
if (blogic_parse(&options, "IO:")) {
|
|
unsigned long io_addr = simple_strtoul(options,
|
|
&options, 0);
|
|
blogic_probe_options.limited_isa = true;
|
|
switch (io_addr) {
|
|
case 0x330:
|
|
blogic_probe_options.probe330 = true;
|
|
break;
|
|
case 0x334:
|
|
blogic_probe_options.probe334 = true;
|
|
break;
|
|
case 0x230:
|
|
blogic_probe_options.probe230 = true;
|
|
break;
|
|
case 0x234:
|
|
blogic_probe_options.probe234 = true;
|
|
break;
|
|
case 0x130:
|
|
blogic_probe_options.probe130 = true;
|
|
break;
|
|
case 0x134:
|
|
blogic_probe_options.probe134 = true;
|
|
break;
|
|
default:
|
|
blogic_err("BusLogic: Invalid Driver Options (invalid I/O Address 0x%lX)\n", NULL, io_addr);
|
|
return 0;
|
|
}
|
|
} else if (blogic_parse(&options, "NoProbeISA"))
|
|
blogic_probe_options.noprobe_isa = true;
|
|
else if (blogic_parse(&options, "NoProbePCI"))
|
|
blogic_probe_options.noprobe_pci = true;
|
|
else if (blogic_parse(&options, "NoProbe"))
|
|
blogic_probe_options.noprobe = true;
|
|
else if (blogic_parse(&options, "NoSortPCI"))
|
|
blogic_probe_options.nosort_pci = true;
|
|
else if (blogic_parse(&options, "MultiMasterFirst"))
|
|
blogic_probe_options.multimaster_first = true;
|
|
else if (blogic_parse(&options, "FlashPointFirst"))
|
|
blogic_probe_options.flashpoint_first = true;
|
|
/* Tagged Queuing Options. */
|
|
else if (blogic_parse(&options, "QueueDepth:[") ||
|
|
blogic_parse(&options, "QD:[")) {
|
|
for (tgt_id = 0; tgt_id < BLOGIC_MAXDEV; tgt_id++) {
|
|
unsigned short qdepth = simple_strtoul(options, &options, 0);
|
|
if (qdepth > BLOGIC_MAX_TAG_DEPTH) {
|
|
blogic_err("BusLogic: Invalid Driver Options (invalid Queue Depth %d)\n", NULL, qdepth);
|
|
return 0;
|
|
}
|
|
drvr_opts->qdepth[tgt_id] = qdepth;
|
|
if (*options == ',')
|
|
options++;
|
|
else if (*options == ']')
|
|
break;
|
|
else {
|
|
blogic_err("BusLogic: Invalid Driver Options (',' or ']' expected at '%s')\n", NULL, options);
|
|
return 0;
|
|
}
|
|
}
|
|
if (*options != ']') {
|
|
blogic_err("BusLogic: Invalid Driver Options (']' expected at '%s')\n", NULL, options);
|
|
return 0;
|
|
} else
|
|
options++;
|
|
} else if (blogic_parse(&options, "QueueDepth:") || blogic_parse(&options, "QD:")) {
|
|
unsigned short qdepth = simple_strtoul(options, &options, 0);
|
|
if (qdepth == 0 ||
|
|
qdepth > BLOGIC_MAX_TAG_DEPTH) {
|
|
blogic_err("BusLogic: Invalid Driver Options (invalid Queue Depth %d)\n", NULL, qdepth);
|
|
return 0;
|
|
}
|
|
drvr_opts->common_qdepth = qdepth;
|
|
for (tgt_id = 0; tgt_id < BLOGIC_MAXDEV; tgt_id++)
|
|
drvr_opts->qdepth[tgt_id] = qdepth;
|
|
} else if (blogic_parse(&options, "TaggedQueuing:") ||
|
|
blogic_parse(&options, "TQ:")) {
|
|
if (blogic_parse(&options, "Default")) {
|
|
drvr_opts->tagq_ok = 0x0000;
|
|
drvr_opts->tagq_ok_mask = 0x0000;
|
|
} else if (blogic_parse(&options, "Enable")) {
|
|
drvr_opts->tagq_ok = 0xFFFF;
|
|
drvr_opts->tagq_ok_mask = 0xFFFF;
|
|
} else if (blogic_parse(&options, "Disable")) {
|
|
drvr_opts->tagq_ok = 0x0000;
|
|
drvr_opts->tagq_ok_mask = 0xFFFF;
|
|
} else {
|
|
unsigned short tgt_bit;
|
|
for (tgt_id = 0, tgt_bit = 1;
|
|
tgt_id < BLOGIC_MAXDEV;
|
|
tgt_id++, tgt_bit <<= 1)
|
|
switch (*options++) {
|
|
case 'Y':
|
|
drvr_opts->tagq_ok |= tgt_bit;
|
|
drvr_opts->tagq_ok_mask |= tgt_bit;
|
|
break;
|
|
case 'N':
|
|
drvr_opts->tagq_ok &= ~tgt_bit;
|
|
drvr_opts->tagq_ok_mask |= tgt_bit;
|
|
break;
|
|
case 'X':
|
|
break;
|
|
default:
|
|
options--;
|
|
tgt_id = BLOGIC_MAXDEV;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
/* Miscellaneous Options. */
|
|
else if (blogic_parse(&options, "BusSettleTime:") ||
|
|
blogic_parse(&options, "BST:")) {
|
|
unsigned short bus_settle_time =
|
|
simple_strtoul(options, &options, 0);
|
|
if (bus_settle_time > 5 * 60) {
|
|
blogic_err("BusLogic: Invalid Driver Options (invalid Bus Settle Time %d)\n", NULL, bus_settle_time);
|
|
return 0;
|
|
}
|
|
drvr_opts->bus_settle_time = bus_settle_time;
|
|
} else if (blogic_parse(&options,
|
|
"InhibitTargetInquiry"))
|
|
drvr_opts->stop_tgt_inquiry = true;
|
|
/* Debugging Options. */
|
|
else if (blogic_parse(&options, "TraceProbe"))
|
|
blogic_global_options.trace_probe = true;
|
|
else if (blogic_parse(&options, "TraceHardwareReset"))
|
|
blogic_global_options.trace_hw_reset = true;
|
|
else if (blogic_parse(&options, "TraceConfiguration"))
|
|
blogic_global_options.trace_config = true;
|
|
else if (blogic_parse(&options, "TraceErrors"))
|
|
blogic_global_options.trace_err = true;
|
|
else if (blogic_parse(&options, "Debug")) {
|
|
blogic_global_options.trace_probe = true;
|
|
blogic_global_options.trace_hw_reset = true;
|
|
blogic_global_options.trace_config = true;
|
|
blogic_global_options.trace_err = true;
|
|
}
|
|
if (*options == ',')
|
|
options++;
|
|
else if (*options != ';' && *options != '\0') {
|
|
blogic_err("BusLogic: Unexpected Driver Option '%s' ignored\n", NULL, options);
|
|
*options = '\0';
|
|
}
|
|
}
|
|
if (!(blogic_drvr_options_count == 0 ||
|
|
blogic_probeinfo_count == 0 ||
|
|
blogic_drvr_options_count == blogic_probeinfo_count)) {
|
|
blogic_err("BusLogic: Invalid Driver Options (all or no I/O Addresses must be specified)\n", NULL);
|
|
return 0;
|
|
}
|
|
/*
|
|
Tagged Queuing is disabled when the Queue Depth is 1 since queuing
|
|
multiple commands is not possible.
|
|
*/
|
|
for (tgt_id = 0; tgt_id < BLOGIC_MAXDEV; tgt_id++)
|
|
if (drvr_opts->qdepth[tgt_id] == 1) {
|
|
unsigned short tgt_bit = 1 << tgt_id;
|
|
drvr_opts->tagq_ok &= ~tgt_bit;
|
|
drvr_opts->tagq_ok_mask |= tgt_bit;
|
|
}
|
|
if (*options == ';')
|
|
options++;
|
|
if (*options == '\0')
|
|
return 0;
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
/*
|
|
Get it all started
|
|
*/
|
|
|
|
static struct scsi_host_template blogic_template = {
|
|
.module = THIS_MODULE,
|
|
.proc_name = "BusLogic",
|
|
.write_info = blogic_write_info,
|
|
.show_info = blogic_show_info,
|
|
.name = "BusLogic",
|
|
.info = blogic_drvr_info,
|
|
.queuecommand = blogic_qcmd,
|
|
.slave_configure = blogic_slaveconfig,
|
|
.bios_param = blogic_diskparam,
|
|
.eh_host_reset_handler = blogic_hostreset,
|
|
#if 0
|
|
.eh_abort_handler = blogic_abort,
|
|
#endif
|
|
.unchecked_isa_dma = 1,
|
|
.max_sectors = 128,
|
|
};
|
|
|
|
/*
|
|
blogic_setup handles processing of Kernel Command Line Arguments.
|
|
*/
|
|
|
|
static int __init blogic_setup(char *str)
|
|
{
|
|
int ints[3];
|
|
|
|
(void) get_options(str, ARRAY_SIZE(ints), ints);
|
|
|
|
if (ints[0] != 0) {
|
|
blogic_err("BusLogic: Obsolete Command Line Entry Format Ignored\n", NULL);
|
|
return 0;
|
|
}
|
|
if (str == NULL || *str == '\0')
|
|
return 0;
|
|
return blogic_parseopts(str);
|
|
}
|
|
|
|
/*
|
|
* Exit function. Deletes all hosts associated with this driver.
|
|
*/
|
|
|
|
static void __exit blogic_exit(void)
|
|
{
|
|
struct blogic_adapter *ha, *next;
|
|
|
|
list_for_each_entry_safe(ha, next, &blogic_host_list, host_list)
|
|
blogic_deladapter(ha);
|
|
}
|
|
|
|
__setup("BusLogic=", blogic_setup);
|
|
|
|
#ifdef MODULE
|
|
/*static struct pci_device_id blogic_pci_tbl[] = {
|
|
{ PCI_VENDOR_ID_BUSLOGIC, PCI_DEVICE_ID_BUSLOGIC_MULTIMASTER,
|
|
PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
|
|
{ PCI_VENDOR_ID_BUSLOGIC, PCI_DEVICE_ID_BUSLOGIC_MULTIMASTER_NC,
|
|
PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
|
|
{ PCI_VENDOR_ID_BUSLOGIC, PCI_DEVICE_ID_BUSLOGIC_FLASHPOINT,
|
|
PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
|
|
{ }
|
|
};*/
|
|
static const struct pci_device_id blogic_pci_tbl[] = {
|
|
{PCI_DEVICE(PCI_VENDOR_ID_BUSLOGIC, PCI_DEVICE_ID_BUSLOGIC_MULTIMASTER)},
|
|
{PCI_DEVICE(PCI_VENDOR_ID_BUSLOGIC, PCI_DEVICE_ID_BUSLOGIC_MULTIMASTER_NC)},
|
|
{PCI_DEVICE(PCI_VENDOR_ID_BUSLOGIC, PCI_DEVICE_ID_BUSLOGIC_FLASHPOINT)},
|
|
{0, },
|
|
};
|
|
#endif
|
|
MODULE_DEVICE_TABLE(pci, blogic_pci_tbl);
|
|
|
|
module_init(blogic_init);
|
|
module_exit(blogic_exit);
|