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+**************************************************************************
+** History
+**
+** REV# DATE NAME DESCRIPTION
+** 1.00.00.00 3/31/2004 Erich Chen First release
+** 1.10.00.04 7/28/2004 Erich Chen modify for ioctl
+** 1.10.00.06 8/28/2004 Erich Chen modify for 2.6.x
+** 1.10.00.08 9/28/2004 Erich Chen modify for x86_64
+** 1.10.00.10 10/10/2004 Erich Chen bug fix for SMP & ioctl
+** 1.20.00.00 11/29/2004 Erich Chen bug fix with arcmsr_bus_reset when PHY error
+** 1.20.00.02 12/09/2004 Erich Chen bug fix with over 2T bytes RAID Volume
+** 1.20.00.04 1/09/2005 Erich Chen fits for Debian linux kernel version 2.2.xx
+** 1.20.00.05 2/20/2005 Erich Chen cleanly as look like a Linux driver at 2.6.x
+** thanks for peoples kindness comment
+** Kornel Wieliczek
+** Christoph Hellwig
+** Adrian Bunk
+** Andrew Morton
+** Christoph Hellwig
+** James Bottomley
+** Arjan van de Ven
+** 1.20.00.06 3/12/2005 Erich Chen fix with arcmsr_pci_unmap_dma "unsigned long" cast,
+** modify PCCB POOL allocated by "dma_alloc_coherent"
+** (Kornel Wieliczek's comment)
+** 1.20.00.07 3/23/2005 Erich Chen bug fix with arcmsr_scsi_host_template_init
+** occur segmentation fault,
+** if RAID adapter does not on PCI slot
+** and modprobe/rmmod this driver twice.
+** bug fix enormous stack usage (Adrian Bunk's comment)
+** 1.20.00.08 6/23/2005 Erich Chen bug fix with abort command,
+** in case of heavy loading when sata cable
+** working on low quality connection
+** 1.20.00.09 9/12/2005 Erich Chen bug fix with abort command handling, firmware version check
+** and firmware update notify for hardware bug fix
+** 1.20.00.10 9/23/2005 Erich Chen enhance sysfs function for change driver's max tag Q number.
+** add DMA_64BIT_MASK for backward compatible with all 2.6.x
+** add some useful message for abort command
+** add ioctl code 'ARCMSR_IOCTL_FLUSH_ADAPTER_CACHE'
+** customer can send this command for sync raid volume data
+** 1.20.00.11 9/29/2005 Erich Chen by comment of Arjan van de Ven fix incorrect msleep redefine
+** cast off sizeof(dma_addr_t) condition for 64bit pci_set_dma_mask
+** 1.20.00.12 9/30/2005 Erich Chen bug fix with 64bit platform's ccbs using if over 4G system memory
+** change 64bit pci_set_consistent_dma_mask into 32bit
+** increcct adapter count if adapter initialize fail.
+** miss edit at arcmsr_build_ccb....
+** psge += sizeof(struct _SG64ENTRY *) =>
+** psge += sizeof(struct _SG64ENTRY)
+** 64 bits sg entry would be incorrectly calculated
+** thanks Kornel Wieliczek give me kindly notify
+** and detail description
+** 1.20.00.13 11/15/2005 Erich Chen scheduling pending ccb with FIFO
+** change the architecture of arcmsr command queue list
+** for linux standard list
+** enable usage of pci message signal interrupt
+** follow Randy.Danlup kindness suggestion cleanup this code
+** 1.20.00.14 05/02/2007 Erich Chen & Nick Cheng
+** 1.implement PCI-Express error recovery function and AER capability
+** 2.implement the selection of ARCMSR_MAX_XFER_SECTORS_B=4096
+** if firmware version is newer than 1.42
+** 3.modify arcmsr_iop_reset to improve the ability
+** 4.modify the ISR, arcmsr_interrupt routine,to prevent the
+** inconsistency with sg_mod driver if application directly calls
+** the arcmsr driver w/o passing through scsi mid layer
+** specially thanks to Yanmin Zhang's openhanded help about AER
+** 1.20.00.15 08/30/2007 Erich Chen & Nick Cheng
+** 1. support ARC1200/1201/1202 SATA RAID adapter, which is named
+** ACB_ADAPTER_TYPE_B
+** 2. modify the arcmsr_pci_slot_reset function
+** 3. modify the arcmsr_pci_ers_disconnect_forepart function
+** 4. modify the arcmsr_pci_ers_need_reset_forepart function
+** 1.20.00.15 09/27/2007 Erich Chen & Nick Cheng
+** 1. add arcmsr_enable_eoi_mode() on adapter Type B
+** 2. add readl(reg->iop2drv_doorbell_reg) in arcmsr_handle_hbb_isr()
+** in case of the doorbell interrupt clearance is cached
+** 1.20.00.15 10/01/2007 Erich Chen & Nick Cheng
+** 1. modify acb->devstate[i][j]
+** as ARECA_RAID_GOOD instead of
+** ARECA_RAID_GONE in arcmsr_alloc_ccb_pool
+** 1.20.00.15 11/06/2007 Erich Chen & Nick Cheng
+** 1. add conditional declaration for
+** arcmsr_pci_error_detected() and
+** arcmsr_pci_slot_reset
+** 1.20.00.15 11/23/2007 Erich Chen & Nick Cheng
+** 1.check if the sg list member number
+** exceeds arcmsr default limit in arcmsr_build_ccb()
+** 2.change the returned value type of arcmsr_build_ccb()
+** from "void" to "int"
+** 3.add the conditional check if arcmsr_build_ccb()
+** returns FAILED
+** 1.20.00.15 12/04/2007 Erich Chen & Nick Cheng
+** 1. modify arcmsr_drain_donequeue() to ignore unknown
+** command and let kernel process command timeout.
+** This could handle IO request violating max. segments
+** while Linux XFS over DM-CRYPT.
+** Thanks to Milan Broz's comments <mbroz@redhat.com>
+** 1.20.00.15 12/24/2007 Erich Chen & Nick Cheng
+** 1.fix the portability problems
+** 2.fix type B where we should _not_ iounmap() acb->pmu;
+** it's not ioremapped.
+** 3.add return -ENOMEM if ioremap() fails
+** 4.transfer IS_SG64_ADDR w/ cpu_to_le32()
+** in arcmsr_build_ccb
+** 5. modify acb->devstate[i][j] as ARECA_RAID_GONE instead of
+** ARECA_RAID_GOOD in arcmsr_alloc_ccb_pool()
+** 6.fix arcmsr_cdb->Context as (unsigned long)arcmsr_cdb
+** 7.add the checking state of
+** (outbound_intstatus & ARCMSR_MU_OUTBOUND_HANDLE_INT) == 0
+** in arcmsr_handle_hba_isr
+** 8.replace pci_alloc_consistent()/pci_free_consistent() with kmalloc()/kfree() in arcmsr_iop_message_xfer()
+** 9. fix the release of dma memory for type B in arcmsr_free_ccb_pool()
+** 10.fix the arcmsr_polling_hbb_ccbdone()
+** 1.20.00.15 02/27/2008 Erich Chen & Nick Cheng
+** 1.arcmsr_iop_message_xfer() is called from atomic context under the
+** queuecommand scsi_host_template handler. James Bottomley pointed out
+** that the current GFP_KERNEL|GFP_DMA flags are wrong: firstly we are in
+** atomic context, secondly this memory is not used for DMA.
+** Also removed some unneeded casts. Thanks to Daniel Drake <dsd@gentoo.org>
+**************************************************************************