0001 **************************************************************************
0002 ** History
0003 **
0004 ** REV# DATE NAME DESCRIPTION
0005 ** 1.00.00.00 3/31/2004 Erich Chen First release
0006 ** 1.10.00.04 7/28/2004 Erich Chen modify for ioctl
0007 ** 1.10.00.06 8/28/2004 Erich Chen modify for 2.6.x
0008 ** 1.10.00.08 9/28/2004 Erich Chen modify for x86_64
0009 ** 1.10.00.10 10/10/2004 Erich Chen bug fix for SMP & ioctl
0010 ** 1.20.00.00 11/29/2004 Erich Chen bug fix with arcmsr_bus_reset when PHY error
0011 ** 1.20.00.02 12/09/2004 Erich Chen bug fix with over 2T bytes RAID Volume
0012 ** 1.20.00.04 1/09/2005 Erich Chen fits for Debian linux kernel version 2.2.xx
0013 ** 1.20.00.05 2/20/2005 Erich Chen cleanly as look like a Linux driver at 2.6.x
0014 ** thanks for peoples kindness comment
0015 ** Kornel Wieliczek
0016 ** Christoph Hellwig
0017 ** Adrian Bunk
0018 ** Andrew Morton
0019 ** Christoph Hellwig
0020 ** James Bottomley
0021 ** Arjan van de Ven
0022 ** 1.20.00.06 3/12/2005 Erich Chen fix with arcmsr_pci_unmap_dma "unsigned long" cast,
0023 ** modify PCCB POOL allocated by "dma_alloc_coherent"
0024 ** (Kornel Wieliczek's comment)
0025 ** 1.20.00.07 3/23/2005 Erich Chen bug fix with arcmsr_scsi_host_template_init
0026 ** occur segmentation fault,
0027 ** if RAID adapter does not on PCI slot
0028 ** and modprobe/rmmod this driver twice.
0029 ** bug fix enormous stack usage (Adrian Bunk's comment)
0030 ** 1.20.00.08 6/23/2005 Erich Chen bug fix with abort command,
0031 ** in case of heavy loading when sata cable
0032 ** working on low quality connection
0033 ** 1.20.00.09 9/12/2005 Erich Chen bug fix with abort command handling, firmware version check
0034 ** and firmware update notify for hardware bug fix
0035 ** 1.20.00.10 9/23/2005 Erich Chen enhance sysfs function for change driver's max tag Q number.
0036 ** add DMA_64BIT_MASK for backward compatible with all 2.6.x
0037 ** add some useful message for abort command
0038 ** add ioctl code 'ARCMSR_IOCTL_FLUSH_ADAPTER_CACHE'
0039 ** customer can send this command for sync raid volume data
0040 ** 1.20.00.11 9/29/2005 Erich Chen by comment of Arjan van de Ven fix incorrect msleep redefine
0041 ** cast off sizeof(dma_addr_t) condition for 64bit pci_set_dma_mask
0042 ** 1.20.00.12 9/30/2005 Erich Chen bug fix with 64bit platform's ccbs using if over 4G system memory
0043 ** change 64bit pci_set_consistent_dma_mask into 32bit
0044 ** increcct adapter count if adapter initialize fail.
0045 ** miss edit at arcmsr_build_ccb....
0046 ** psge += sizeof(struct _SG64ENTRY *) =>
0047 ** psge += sizeof(struct _SG64ENTRY)
0048 ** 64 bits sg entry would be incorrectly calculated
0049 ** thanks Kornel Wieliczek give me kindly notify
0050 ** and detail description
0051 ** 1.20.00.13 11/15/2005 Erich Chen scheduling pending ccb with FIFO
0052 ** change the architecture of arcmsr command queue list
0053 ** for linux standard list
0054 ** enable usage of pci message signal interrupt
0055 ** follow Randy.Danlup kindness suggestion cleanup this code
0056 ** 1.20.00.14 05/02/2007 Erich Chen & Nick Cheng
0057 ** 1.implement PCI-Express error recovery function and AER capability
0058 ** 2.implement the selection of ARCMSR_MAX_XFER_SECTORS_B=4096
0059 ** if firmware version is newer than 1.42
0060 ** 3.modify arcmsr_iop_reset to improve the ability
0061 ** 4.modify the ISR, arcmsr_interrupt routine,to prevent the
0062 ** inconsistency with sg_mod driver if application directly calls
0063 ** the arcmsr driver w/o passing through scsi mid layer
0064 ** specially thanks to Yanmin Zhang's openhanded help about AER
0065 ** 1.20.00.15 08/30/2007 Erich Chen & Nick Cheng
0066 ** 1. support ARC1200/1201/1202 SATA RAID adapter, which is named
0067 ** ACB_ADAPTER_TYPE_B
0068 ** 2. modify the arcmsr_pci_slot_reset function
0069 ** 3. modify the arcmsr_pci_ers_disconnect_forepart function
0070 ** 4. modify the arcmsr_pci_ers_need_reset_forepart function
0071 ** 1.20.00.15 09/27/2007 Erich Chen & Nick Cheng
0072 ** 1. add arcmsr_enable_eoi_mode() on adapter Type B
0073 ** 2. add readl(reg->iop2drv_doorbell_reg) in arcmsr_handle_hbb_isr()
0074 ** in case of the doorbell interrupt clearance is cached
0075 ** 1.20.00.15 10/01/2007 Erich Chen & Nick Cheng
0076 ** 1. modify acb->devstate[i][j]
0077 ** as ARECA_RAID_GOOD instead of
0078 ** ARECA_RAID_GONE in arcmsr_alloc_ccb_pool
0079 ** 1.20.00.15 11/06/2007 Erich Chen & Nick Cheng
0080 ** 1. add conditional declaration for
0081 ** arcmsr_pci_error_detected() and
0082 ** arcmsr_pci_slot_reset
0083 ** 1.20.00.15 11/23/2007 Erich Chen & Nick Cheng
0084 ** 1.check if the sg list member number
0085 ** exceeds arcmsr default limit in arcmsr_build_ccb()
0086 ** 2.change the returned value type of arcmsr_build_ccb()
0087 ** from "void" to "int"
0088 ** 3.add the conditional check if arcmsr_build_ccb()
0089 ** returns FAILED
0090 ** 1.20.00.15 12/04/2007 Erich Chen & Nick Cheng
0091 ** 1. modify arcmsr_drain_donequeue() to ignore unknown
0092 ** command and let kernel process command timeout.
0093 ** This could handle IO request violating max. segments
0094 ** while Linux XFS over DM-CRYPT.
0095 ** Thanks to Milan Broz's comments <mbroz@redhat.com>
0096 ** 1.20.00.15 12/24/2007 Erich Chen & Nick Cheng
0097 ** 1.fix the portability problems
0098 ** 2.fix type B where we should _not_ iounmap() acb->pmu;
0099 ** it's not ioremapped.
0100 ** 3.add return -ENOMEM if ioremap() fails
0101 ** 4.transfer IS_SG64_ADDR w/ cpu_to_le32()
0102 ** in arcmsr_build_ccb
0103 ** 5. modify acb->devstate[i][j] as ARECA_RAID_GONE instead of
0104 ** ARECA_RAID_GOOD in arcmsr_alloc_ccb_pool()
0105 ** 6.fix arcmsr_cdb->Context as (unsigned long)arcmsr_cdb
0106 ** 7.add the checking state of
0107 ** (outbound_intstatus & ARCMSR_MU_OUTBOUND_HANDLE_INT) == 0
0108 ** in arcmsr_handle_hba_isr
0109 ** 8.replace pci_alloc_consistent()/pci_free_consistent() with kmalloc()/kfree() in arcmsr_iop_message_xfer()
0110 ** 9. fix the release of dma memory for type B in arcmsr_free_ccb_pool()
0111 ** 10.fix the arcmsr_polling_hbb_ccbdone()
0112 ** 1.20.00.15 02/27/2008 Erich Chen & Nick Cheng
0113 ** 1.arcmsr_iop_message_xfer() is called from atomic context under the
0114 ** queuecommand scsi_host_template handler. James Bottomley pointed out
0115 ** that the current GFP_KERNEL|GFP_DMA flags are wrong: firstly we are in
0116 ** atomic context, secondly this memory is not used for DMA.
0117 ** Also removed some unneeded casts. Thanks to Daniel Drake <dsd@gentoo.org>
0118 **************************************************************************
