v4.19.13 snapshot.
diff --git a/drivers/scsi/BusLogic.c b/drivers/scsi/BusLogic.c
new file mode 100644
index 0000000..0d4ffe0
--- /dev/null
+++ b/drivers/scsi/BusLogic.c
@@ -0,0 +1,3914 @@
+
+/*
+
+ Linux Driver for BusLogic MultiMaster and FlashPoint SCSI Host Adapters
+
+ Copyright 1995-1998 by Leonard N. Zubkoff <lnz@dandelion.com>
+
+ This program is free software; you may redistribute and/or modify it under
+ the terms of the GNU General Public License Version 2 as published by the
+ Free Software Foundation.
+
+ This program is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY, without even the implied warranty of MERCHANTABILITY
+ or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ for complete details.
+
+ The author respectfully requests that any modifications to this software be
+ sent directly to him for evaluation and testing.
+
+ Special thanks to Wayne Yen, Jin-Lon Hon, and Alex Win of BusLogic, whose
+ advice has been invaluable, to David Gentzel, for writing the original Linux
+ BusLogic driver, and to Paul Gortmaker, for being such a dedicated test site.
+
+ Finally, special thanks to Mylex/BusLogic for making the FlashPoint SCCB
+ Manager available as freely redistributable source code.
+
+*/
+
+#define blogic_drvr_version "2.1.17"
+#define blogic_drvr_date "12 September 2013"
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/types.h>
+#include <linux/blkdev.h>
+#include <linux/delay.h>
+#include <linux/ioport.h>
+#include <linux/mm.h>
+#include <linux/stat.h>
+#include <linux/pci.h>
+#include <linux/spinlock.h>
+#include <linux/jiffies.h>
+#include <linux/dma-mapping.h>
+#include <linux/slab.h>
+#include <scsi/scsicam.h>
+
+#include <asm/dma.h>
+#include <asm/io.h>
+
+#include <scsi/scsi.h>
+#include <scsi/scsi_cmnd.h>
+#include <scsi/scsi_device.h>
+#include <scsi/scsi_host.h>
+#include <scsi/scsi_tcq.h>
+#include "BusLogic.h"
+#include "FlashPoint.c"
+
+#ifndef FAILURE
+#define FAILURE (-1)
+#endif
+
+static struct scsi_host_template blogic_template;
+
+/*
+ blogic_drvr_options_count is a count of the number of BusLogic Driver
+ Options specifications provided via the Linux Kernel Command Line or via
+ the Loadable Kernel Module Installation Facility.
+*/
+
+static int blogic_drvr_options_count;
+
+
+/*
+ blogic_drvr_options is an array of Driver Options structures representing
+ BusLogic Driver Options specifications provided via the Linux Kernel Command
+ Line or via the Loadable Kernel Module Installation Facility.
+*/
+
+static struct blogic_drvr_options blogic_drvr_options[BLOGIC_MAX_ADAPTERS];
+
+
+/*
+ BusLogic can be assigned a string by insmod.
+*/
+
+MODULE_LICENSE("GPL");
+#ifdef MODULE
+static char *BusLogic;
+module_param(BusLogic, charp, 0);
+#endif
+
+
+/*
+ blogic_probe_options is a set of Probe Options to be applied across
+ all BusLogic Host Adapters.
+*/
+
+static struct blogic_probe_options blogic_probe_options;
+
+
+/*
+ blogic_global_options is a set of Global Options to be applied across
+ all BusLogic Host Adapters.
+*/
+
+static struct blogic_global_options blogic_global_options;
+
+static LIST_HEAD(blogic_host_list);
+
+/*
+ blogic_probeinfo_count is the number of entries in blogic_probeinfo_list.
+*/
+
+static int blogic_probeinfo_count;
+
+
+/*
+ blogic_probeinfo_list is the list of I/O Addresses and Bus Probe Information
+ to be checked for potential BusLogic Host Adapters. It is initialized by
+ interrogating the PCI Configuration Space on PCI machines as well as from the
+ list of standard BusLogic I/O Addresses.
+*/
+
+static struct blogic_probeinfo *blogic_probeinfo_list;
+
+
+/*
+ blogic_cmd_failure_reason holds a string identifying the reason why a
+ call to blogic_cmd failed. It is only non-NULL when blogic_cmd
+ returns a failure code.
+*/
+
+static char *blogic_cmd_failure_reason;
+
+/*
+ blogic_announce_drvr announces the Driver Version and Date, Author's
+ Name, Copyright Notice, and Electronic Mail Address.
+*/
+
+static void blogic_announce_drvr(struct blogic_adapter *adapter)
+{
+ blogic_announce("***** BusLogic SCSI Driver Version " blogic_drvr_version " of " blogic_drvr_date " *****\n", adapter);
+ blogic_announce("Copyright 1995-1998 by Leonard N. Zubkoff " "<lnz@dandelion.com>\n", adapter);
+}
+
+
+/*
+ blogic_drvr_info returns the Host Adapter Name to identify this SCSI
+ Driver and Host Adapter.
+*/
+
+static const char *blogic_drvr_info(struct Scsi_Host *host)
+{
+ struct blogic_adapter *adapter =
+ (struct blogic_adapter *) host->hostdata;
+ return adapter->full_model;
+}
+
+/*
+ blogic_init_ccbs initializes a group of Command Control Blocks (CCBs)
+ for Host Adapter from the blk_size bytes located at blk_pointer. The newly
+ created CCBs are added to Host Adapter's free list.
+*/
+
+static void blogic_init_ccbs(struct blogic_adapter *adapter, void *blk_pointer,
+ int blk_size, dma_addr_t blkp)
+{
+ struct blogic_ccb *ccb = (struct blogic_ccb *) blk_pointer;
+ unsigned int offset = 0;
+ memset(blk_pointer, 0, blk_size);
+ ccb->allocgrp_head = blkp;
+ ccb->allocgrp_size = blk_size;
+ while ((blk_size -= sizeof(struct blogic_ccb)) >= 0) {
+ ccb->status = BLOGIC_CCB_FREE;
+ ccb->adapter = adapter;
+ ccb->dma_handle = (u32) blkp + offset;
+ if (blogic_flashpoint_type(adapter)) {
+ ccb->callback = blogic_qcompleted_ccb;
+ ccb->base_addr = adapter->fpinfo.base_addr;
+ }
+ ccb->next = adapter->free_ccbs;
+ ccb->next_all = adapter->all_ccbs;
+ adapter->free_ccbs = ccb;
+ adapter->all_ccbs = ccb;
+ adapter->alloc_ccbs++;
+ ccb++;
+ offset += sizeof(struct blogic_ccb);
+ }
+}
+
+
+/*
+ blogic_create_initccbs allocates the initial CCBs for Host Adapter.
+*/
+
+static bool __init blogic_create_initccbs(struct blogic_adapter *adapter)
+{
+ int blk_size = BLOGIC_CCB_GRP_ALLOCSIZE * sizeof(struct blogic_ccb);
+ void *blk_pointer;
+ dma_addr_t blkp;
+
+ while (adapter->alloc_ccbs < adapter->initccbs) {
+ blk_pointer = pci_alloc_consistent(adapter->pci_device,
+ blk_size, &blkp);
+ if (blk_pointer == NULL) {
+ blogic_err("UNABLE TO ALLOCATE CCB GROUP - DETACHING\n",
+ adapter);
+ return false;
+ }
+ blogic_init_ccbs(adapter, blk_pointer, blk_size, blkp);
+ }
+ return true;
+}
+
+
+/*
+ blogic_destroy_ccbs deallocates the CCBs for Host Adapter.
+*/
+
+static void blogic_destroy_ccbs(struct blogic_adapter *adapter)
+{
+ struct blogic_ccb *next_ccb = adapter->all_ccbs, *ccb, *lastccb = NULL;
+ adapter->all_ccbs = NULL;
+ adapter->free_ccbs = NULL;
+ while ((ccb = next_ccb) != NULL) {
+ next_ccb = ccb->next_all;
+ if (ccb->allocgrp_head) {
+ if (lastccb)
+ pci_free_consistent(adapter->pci_device,
+ lastccb->allocgrp_size, lastccb,
+ lastccb->allocgrp_head);
+ lastccb = ccb;
+ }
+ }
+ if (lastccb)
+ pci_free_consistent(adapter->pci_device, lastccb->allocgrp_size,
+ lastccb, lastccb->allocgrp_head);
+}
+
+
+/*
+ blogic_create_addlccbs allocates Additional CCBs for Host Adapter. If
+ allocation fails and there are no remaining CCBs available, the Driver Queue
+ Depth is decreased to a known safe value to avoid potential deadlocks when
+ multiple host adapters share the same IRQ Channel.
+*/
+
+static void blogic_create_addlccbs(struct blogic_adapter *adapter,
+ int addl_ccbs, bool print_success)
+{
+ int blk_size = BLOGIC_CCB_GRP_ALLOCSIZE * sizeof(struct blogic_ccb);
+ int prev_alloc = adapter->alloc_ccbs;
+ void *blk_pointer;
+ dma_addr_t blkp;
+ if (addl_ccbs <= 0)
+ return;
+ while (adapter->alloc_ccbs - prev_alloc < addl_ccbs) {
+ blk_pointer = pci_alloc_consistent(adapter->pci_device,
+ blk_size, &blkp);
+ if (blk_pointer == NULL)
+ break;
+ blogic_init_ccbs(adapter, blk_pointer, blk_size, blkp);
+ }
+ if (adapter->alloc_ccbs > prev_alloc) {
+ if (print_success)
+ blogic_notice("Allocated %d additional CCBs (total now %d)\n", adapter, adapter->alloc_ccbs - prev_alloc, adapter->alloc_ccbs);
+ return;
+ }
+ blogic_notice("Failed to allocate additional CCBs\n", adapter);
+ if (adapter->drvr_qdepth > adapter->alloc_ccbs - adapter->tgt_count) {
+ adapter->drvr_qdepth = adapter->alloc_ccbs - adapter->tgt_count;
+ adapter->scsi_host->can_queue = adapter->drvr_qdepth;
+ }
+}
+
+/*
+ blogic_alloc_ccb allocates a CCB from Host Adapter's free list,
+ allocating more memory from the Kernel if necessary. The Host Adapter's
+ Lock should already have been acquired by the caller.
+*/
+
+static struct blogic_ccb *blogic_alloc_ccb(struct blogic_adapter *adapter)
+{
+ static unsigned long serial;
+ struct blogic_ccb *ccb;
+ ccb = adapter->free_ccbs;
+ if (ccb != NULL) {
+ ccb->serial = ++serial;
+ adapter->free_ccbs = ccb->next;
+ ccb->next = NULL;
+ if (adapter->free_ccbs == NULL)
+ blogic_create_addlccbs(adapter, adapter->inc_ccbs,
+ true);
+ return ccb;
+ }
+ blogic_create_addlccbs(adapter, adapter->inc_ccbs, true);
+ ccb = adapter->free_ccbs;
+ if (ccb == NULL)
+ return NULL;
+ ccb->serial = ++serial;
+ adapter->free_ccbs = ccb->next;
+ ccb->next = NULL;
+ return ccb;
+}
+
+
+/*
+ blogic_dealloc_ccb deallocates a CCB, returning it to the Host Adapter's
+ free list. The Host Adapter's Lock should already have been acquired by the
+ caller.
+*/
+
+static void blogic_dealloc_ccb(struct blogic_ccb *ccb, int dma_unmap)
+{
+ struct blogic_adapter *adapter = ccb->adapter;
+
+ if (ccb->command != NULL)
+ scsi_dma_unmap(ccb->command);
+ if (dma_unmap)
+ pci_unmap_single(adapter->pci_device, ccb->sensedata,
+ ccb->sense_datalen, PCI_DMA_FROMDEVICE);
+
+ ccb->command = NULL;
+ ccb->status = BLOGIC_CCB_FREE;
+ ccb->next = adapter->free_ccbs;
+ adapter->free_ccbs = ccb;
+}
+
+
+/*
+ blogic_cmd sends the command opcode to adapter, optionally
+ providing paramlen bytes of param and receiving at most
+ replylen bytes of reply; any excess reply data is received but
+ discarded.
+
+ On success, this function returns the number of reply bytes read from
+ the Host Adapter (including any discarded data); on failure, it returns
+ -1 if the command was invalid, or -2 if a timeout occurred.
+
+ blogic_cmd is called exclusively during host adapter detection and
+ initialization, so performance and latency are not critical, and exclusive
+ access to the Host Adapter hardware is assumed. Once the host adapter and
+ driver are initialized, the only Host Adapter command that is issued is the
+ single byte Execute Mailbox Command operation code, which does not require
+ waiting for the Host Adapter Ready bit to be set in the Status Register.
+*/
+
+static int blogic_cmd(struct blogic_adapter *adapter, enum blogic_opcode opcode,
+ void *param, int paramlen, void *reply, int replylen)
+{
+ unsigned char *param_p = (unsigned char *) param;
+ unsigned char *reply_p = (unsigned char *) reply;
+ union blogic_stat_reg statusreg;
+ union blogic_int_reg intreg;
+ unsigned long processor_flag = 0;
+ int reply_b = 0, result;
+ long timeout;
+ /*
+ Clear out the Reply Data if provided.
+ */
+ if (replylen > 0)
+ memset(reply, 0, replylen);
+ /*
+ If the IRQ Channel has not yet been acquired, then interrupts
+ must be disabled while issuing host adapter commands since a
+ Command Complete interrupt could occur if the IRQ Channel was
+ previously enabled by another BusLogic Host Adapter or another
+ driver sharing the same IRQ Channel.
+ */
+ if (!adapter->irq_acquired)
+ local_irq_save(processor_flag);
+ /*
+ Wait for the Host Adapter Ready bit to be set and the
+ Command/Parameter Register Busy bit to be reset in the Status
+ Register.
+ */
+ timeout = 10000;
+ while (--timeout >= 0) {
+ statusreg.all = blogic_rdstatus(adapter);
+ if (statusreg.sr.adapter_ready && !statusreg.sr.cmd_param_busy)
+ break;
+ udelay(100);
+ }
+ if (timeout < 0) {
+ blogic_cmd_failure_reason =
+ "Timeout waiting for Host Adapter Ready";
+ result = -2;
+ goto done;
+ }
+ /*
+ Write the opcode to the Command/Parameter Register.
+ */
+ adapter->adapter_cmd_complete = false;
+ blogic_setcmdparam(adapter, opcode);
+ /*
+ Write any additional Parameter Bytes.
+ */
+ timeout = 10000;
+ while (paramlen > 0 && --timeout >= 0) {
+ /*
+ Wait 100 microseconds to give the Host Adapter enough
+ time to determine whether the last value written to the
+ Command/Parameter Register was valid or not. If the
+ Command Complete bit is set in the Interrupt Register,
+ then the Command Invalid bit in the Status Register will
+ be reset if the Operation Code or Parameter was valid
+ and the command has completed, or set if the Operation
+ Code or Parameter was invalid. If the Data In Register
+ Ready bit is set in the Status Register, then the
+ Operation Code was valid, and data is waiting to be read
+ back from the Host Adapter. Otherwise, wait for the
+ Command/Parameter Register Busy bit in the Status
+ Register to be reset.
+ */
+ udelay(100);
+ intreg.all = blogic_rdint(adapter);
+ statusreg.all = blogic_rdstatus(adapter);
+ if (intreg.ir.cmd_complete)
+ break;
+ if (adapter->adapter_cmd_complete)
+ break;
+ if (statusreg.sr.datain_ready)
+ break;
+ if (statusreg.sr.cmd_param_busy)
+ continue;
+ blogic_setcmdparam(adapter, *param_p++);
+ paramlen--;
+ }
+ if (timeout < 0) {
+ blogic_cmd_failure_reason =
+ "Timeout waiting for Parameter Acceptance";
+ result = -2;
+ goto done;
+ }
+ /*
+ The Modify I/O Address command does not cause a Command Complete
+ Interrupt.
+ */
+ if (opcode == BLOGIC_MOD_IOADDR) {
+ statusreg.all = blogic_rdstatus(adapter);
+ if (statusreg.sr.cmd_invalid) {
+ blogic_cmd_failure_reason =
+ "Modify I/O Address Invalid";
+ result = -1;
+ goto done;
+ }
+ if (blogic_global_options.trace_config)
+ blogic_notice("blogic_cmd(%02X) Status = %02X: " "(Modify I/O Address)\n", adapter, opcode, statusreg.all);
+ result = 0;
+ goto done;
+ }
+ /*
+ Select an appropriate timeout value for awaiting command completion.
+ */
+ switch (opcode) {
+ case BLOGIC_INQ_DEV0TO7:
+ case BLOGIC_INQ_DEV8TO15:
+ case BLOGIC_INQ_DEV:
+ /* Approximately 60 seconds. */
+ timeout = 60 * 10000;
+ break;
+ default:
+ /* Approximately 1 second. */
+ timeout = 10000;
+ break;
+ }
+ /*
+ Receive any Reply Bytes, waiting for either the Command
+ Complete bit to be set in the Interrupt Register, or for the
+ Interrupt Handler to set the Host Adapter Command Completed
+ bit in the Host Adapter structure.
+ */
+ while (--timeout >= 0) {
+ intreg.all = blogic_rdint(adapter);
+ statusreg.all = blogic_rdstatus(adapter);
+ if (intreg.ir.cmd_complete)
+ break;
+ if (adapter->adapter_cmd_complete)
+ break;
+ if (statusreg.sr.datain_ready) {
+ if (++reply_b <= replylen)
+ *reply_p++ = blogic_rddatain(adapter);
+ else
+ blogic_rddatain(adapter);
+ }
+ if (opcode == BLOGIC_FETCH_LOCALRAM &&
+ statusreg.sr.adapter_ready)
+ break;
+ udelay(100);
+ }
+ if (timeout < 0) {
+ blogic_cmd_failure_reason =
+ "Timeout waiting for Command Complete";
+ result = -2;
+ goto done;
+ }
+ /*
+ Clear any pending Command Complete Interrupt.
+ */
+ blogic_intreset(adapter);
+ /*
+ Provide tracing information if requested.
+ */
+ if (blogic_global_options.trace_config) {
+ int i;
+ blogic_notice("blogic_cmd(%02X) Status = %02X: %2d ==> %2d:",
+ adapter, opcode, statusreg.all, replylen,
+ reply_b);
+ if (replylen > reply_b)
+ 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 (pci_set_dma_mask(pci_device, 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%X not I/O for " "MultiMaster Host Adapter\n", NULL, base_addr0);
+ blogic_err("at PCI Bus %d Device %d I/O Address 0x%X\n", NULL, bus, device, io_addr);
+ continue;
+ }
+ if (pci_resource_flags(pci_device, 1) & IORESOURCE_IO) {
+ blogic_err("BusLogic: Base Address1 0x%X not Memory for " "MultiMaster Host Adapter\n", NULL, base_addr1);
+ blogic_err("at PCI Bus %d Device %d PCI Address 0x%X\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%X\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%X PCI Address 0x%X\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 (pci_set_dma_mask(pci_device, 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 (pci_set_dma_mask(pci_device, 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%X not I/O for " "FlashPoint Host Adapter\n", NULL, base_addr0);
+ blogic_err("at PCI Bus %d Device %d I/O Address 0x%X\n", NULL, bus, device, io_addr);
+ continue;
+ }
+ if (pci_resource_flags(pci_device, 1) & IORESOURCE_IO) {
+ blogic_err("BusLogic: Base Address1 0x%X not Memory for " "FlashPoint Host Adapter\n", NULL, base_addr1);
+ blogic_err("at PCI Bus %d Device %d PCI Address 0x%X\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%X\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%X PCI Address 0x%X\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%X PCI Address 0x%X, 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%X PCI Address 0x%X:\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%X:\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%X PCI Address 0x%X, " "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%X): 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%X): 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%X): 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%X): 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%X): 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%X): 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%X, " "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%X, ", 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%X, ", 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)
+ pci_free_consistent(adapter->pci_device, 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 = pci_alloc_consistent(adapter->pci_device,
+ adapter->mbox_sz, &adapter->mbox_space_handle);
+ 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 ? true : false);
+ }
+ /*
+ 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);
+ 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 = pci_map_single(adapter->pci_device,
+ command->sense_buffer, ccb->sense_datalen,
+ PCI_DMA_FROMDEVICE);
+ 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) == 0xAA55) {
+ struct partition *part1_entry = (struct partition *) buf;
+ struct 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.txt>.
+*/
+
+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%X)\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,
+ .use_clustering = ENABLE_CLUSTERING,
+};
+
+/*
+ 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);