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Based on kernel version 3.15.4. Page generated on 2014-07-07 09:04 EST.

1	**************************************************************************
2	** History
3	**
4	**   REV#         DATE             NAME         DESCRIPTION
5	** 1.00.00.00    3/31/2004       Erich Chen     First release
6	** 1.10.00.04    7/28/2004       Erich Chen     modify for ioctl
7	** 1.10.00.06    8/28/2004       Erich Chen     modify for 2.6.x
8	** 1.10.00.08    9/28/2004       Erich Chen     modify for x86_64
9	** 1.10.00.10   10/10/2004       Erich Chen     bug fix for SMP & ioctl
10	** 1.20.00.00   11/29/2004       Erich Chen     bug fix with arcmsr_bus_reset when PHY error
11	** 1.20.00.02   12/09/2004       Erich Chen     bug fix with over 2T bytes RAID Volume
12	** 1.20.00.04    1/09/2005       Erich Chen     fits for Debian linux kernel version 2.2.xx
13	** 1.20.00.05    2/20/2005       Erich Chen     cleanly as look like a Linux driver at 2.6.x
14	**                                              thanks for peoples kindness comment
15	**						Kornel Wieliczek
16	**						Christoph Hellwig
17	**						Adrian Bunk
18	**						Andrew Morton
19	**						Christoph Hellwig
20	**						James Bottomley
21	**						Arjan van de Ven
22	** 1.20.00.06    3/12/2005       Erich Chen     fix with arcmsr_pci_unmap_dma "unsigned long" cast,
23	**						modify PCCB POOL allocated by "dma_alloc_coherent"
24	**						(Kornel Wieliczek's comment)
25	** 1.20.00.07    3/23/2005       Erich Chen     bug fix with arcmsr_scsi_host_template_init
26	**						occur segmentation fault,
27	**						if RAID adapter does not on PCI slot
28	**						and modprobe/rmmod this driver twice.
29	**						bug fix enormous stack usage (Adrian Bunk's comment)
30	** 1.20.00.08    6/23/2005       Erich Chen     bug fix with abort command,
31	**						in case of heavy loading when sata cable
32	**						working on low quality connection
33	** 1.20.00.09    9/12/2005       Erich Chen     bug fix with abort command handling, firmware version check
34	**						and firmware update notify for hardware bug fix
35	** 1.20.00.10    9/23/2005       Erich Chen     enhance sysfs function for change driver's max tag Q number.
36	**						add DMA_64BIT_MASK for backward compatible with all 2.6.x
37	**						add some useful message for abort command
38	**						add ioctl code 'ARCMSR_IOCTL_FLUSH_ADAPTER_CACHE'
39	**						customer can send this command for sync raid volume data
40	** 1.20.00.11    9/29/2005       Erich Chen     by comment of Arjan van de Ven fix incorrect msleep redefine
41	**						cast off sizeof(dma_addr_t) condition for 64bit pci_set_dma_mask
42	** 1.20.00.12    9/30/2005       Erich Chen     bug fix with 64bit platform's ccbs using if over 4G system memory
43	**						change 64bit pci_set_consistent_dma_mask into 32bit
44	**						increcct adapter count if adapter initialize fail.
45	**						miss edit at arcmsr_build_ccb....
46	**						psge += sizeof(struct _SG64ENTRY *) =>
47	**						psge += sizeof(struct _SG64ENTRY)
48	**						64 bits sg entry would be incorrectly calculated
49	**						thanks Kornel Wieliczek give me kindly notify
50	**						and detail description
51	** 1.20.00.13   11/15/2005       Erich Chen     scheduling pending ccb with FIFO
52	**						change the architecture of arcmsr command queue list
53	**						for linux standard list
54	**						enable usage of pci message signal interrupt
55	**						follow Randy.Danlup kindness suggestion cleanup this code
56	** 1.20.00.14   05/02/2007	 Erich Chen & Nick Cheng
57	**						1.implement PCI-Express error recovery function and AER capability
58	**						2.implement the selection of ARCMSR_MAX_XFER_SECTORS_B=4096
59	**				 		if firmware version is newer than 1.42
60	**						3.modify arcmsr_iop_reset to improve the ability
61	**						4.modify the ISR, arcmsr_interrupt routine,to prevent the
62	**						inconsistency with sg_mod driver if application	directly calls
63	**						the arcmsr driver w/o passing through scsi mid layer
64	**						specially thanks to Yanmin Zhang's openhanded help about AER
65	** 1.20.00.15   08/30/2007	 Erich Chen & Nick Cheng
66	**						1. support ARC1200/1201/1202 SATA RAID adapter, which is named
67	**						ACB_ADAPTER_TYPE_B
68	**						2. modify the arcmsr_pci_slot_reset function
69	**						3. modify the arcmsr_pci_ers_disconnect_forepart function
70	**						4. modify the arcmsr_pci_ers_need_reset_forepart function
71	** 1.20.00.15   09/27/2007	 Erich Chen & Nick Cheng
72	**						1. add arcmsr_enable_eoi_mode() on adapter Type B
73	** 						2. add readl(reg->iop2drv_doorbell_reg) in arcmsr_handle_hbb_isr()
74	**						in case of the doorbell interrupt clearance is cached
75	** 1.20.00.15   10/01/2007	 Erich Chen & Nick Cheng
76	**						1. modify acb->devstate[i][j]
77	**						as ARECA_RAID_GOOD instead of
78	**						ARECA_RAID_GONE in arcmsr_alloc_ccb_pool
79	** 1.20.00.15   11/06/2007       Erich Chen & Nick Cheng
80	**						1. add conditional declaration for
81	** 						arcmsr_pci_error_detected() and
82	**						arcmsr_pci_slot_reset
83	** 1.20.00.15	11/23/2007       Erich Chen & Nick Cheng
84	**						1.check if the sg list member number
85	**						exceeds arcmsr default limit in arcmsr_build_ccb()
86	**						2.change the returned value type of arcmsr_build_ccb()
87	**						from "void" to "int"
88	**						3.add the conditional check if arcmsr_build_ccb()
89	**						returns FAILED
90	** 1.20.00.15	12/04/2007	 Erich Chen & Nick Cheng
91	**						1. modify arcmsr_drain_donequeue() to ignore unknown
92	**						command and let kernel process command timeout.
93	**						This could handle IO request violating max. segments
94	**						while Linux XFS over DM-CRYPT.
95	**						Thanks to Milan Broz's comments <mbroz@redhat.com>
96	** 1.20.00.15	12/24/2007	 Erich Chen & Nick Cheng
97	**						1.fix the portability problems
98	**						2.fix type B where we should _not_ iounmap() acb->pmu;
99	**						it's not ioremapped.
100	**						3.add return -ENOMEM if ioremap() fails
101	**						4.transfer IS_SG64_ADDR w/ cpu_to_le32()
102	**						in arcmsr_build_ccb
103	**						5. modify acb->devstate[i][j] as ARECA_RAID_GONE instead of
104	**						ARECA_RAID_GOOD in arcmsr_alloc_ccb_pool()
105	**						6.fix arcmsr_cdb->Context as (unsigned long)arcmsr_cdb
106	**						7.add the checking state of
107	**						(outbound_intstatus & ARCMSR_MU_OUTBOUND_HANDLE_INT) == 0
108	**						in arcmsr_handle_hba_isr
109	**						8.replace pci_alloc_consistent()/pci_free_consistent() with kmalloc()/kfree() in arcmsr_iop_message_xfer()
110	**						9. fix the release of dma memory for type B in arcmsr_free_ccb_pool()
111	**						10.fix the arcmsr_polling_hbb_ccbdone()
112	** 1.20.00.15	02/27/2008	Erich Chen & Nick Cheng
113	**						1.arcmsr_iop_message_xfer() is called from atomic context under the
114	**						queuecommand scsi_host_template handler. James Bottomley pointed out
115	**						that the current GFP_KERNEL|GFP_DMA flags are wrong: firstly we are in
116	**						atomic context, secondly this memory is not used for DMA.
117	**						Also removed some unneeded casts. Thanks to Daniel Drake <dsd@gentoo.org>
118	**************************************************************************
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