[net-next-2.6.git] / Documentation / scsi / ChangeLog.megaraid_sas


1 Release Date    : Thur.July. 24 11:41:51 PST 2008 -
                       (emaild-id:megaraidlinux@lsi.com)
                       Sumant Patro
                       Bo Yang

2 Current Version : 00.00.04.01
3 Older Version   : 00.00.03.22

1. Add the new controller (0078, 0079) support to the driver
       Those controllers are LSI's next generatation(gen2) SAS controllers.

1 Release Date    : Mon.June. 23 10:12:45 PST 2008 -
                       (emaild-id:megaraidlinux@lsi.com)
                       Sumant Patro
                       Bo Yang

2 Current Version : 00.00.03.22
3 Older Version   : 00.00.03.20

1. Add shutdown DCMD cmd to the shutdown routine to make FW shutdown proper.
2. Unexpected interrupt occurs in HWR Linux driver, add the dumy readl pci flush will fix this issue.

1 Release Date    : Mon. March 10 11:02:31 PDT 2008 -
			(emaild-id:megaraidlinux@lsi.com)
			Sumant Patro
			Bo Yang

2 Current Version : 00.00.03.20-RC1
3 Older Version   : 00.00.03.16

1. Rollback the sense info implementation
	Sense buffer ptr data type in the ioctl path is reverted back
	to u32 * as in previous versions of driver.

2. Fixed the driver frame count.
	When Driver sent wrong frame count to firmware.  As this
	particular command is sent to drive, FW is seeing continuous
	chip resets and so the command will timeout.

3. Add the new controller(1078DE) support to the driver
	and Increase the max_wait to 60 from 10 in the controller
	operational status.  With this max_wait increase, driver will
	make sure the FW will 	finish the pending cmd for KDUMP case.

1 Release Date    : Thur. Nov. 07 16:30:43 PST 2007 -
			(emaild-id:megaraidlinux@lsi.com)
			Sumant Patro
			Bo Yang

2 Current Version : 00.00.03.16
3 Older Version   : 00.00.03.15

1. Increased MFI_POLL_TIMEOUT_SECS to 60 seconds from 10. FW may take
	a max of 60 seconds to respond to the INIT cmd.

1 Release Date    : Fri. Sep. 07 16:30:43 PST 2007 -
			(emaild-id:megaraidlinux@lsi.com)
			Sumant Patro
			Bo Yang

2 Current Version : 00.00.03.15
3 Older Version   : 00.00.03.14

1. Added module parameter "poll_mode_io" to support for "polling"
	(reduced interrupt operation).  In this mode, IO completion
	interrupts are delayed. At the end of initiating IOs, the
	driver schedules for cmd completion if there are pending cmds
	to be completed.  A timer-based interrupt has also been added
	to prevent IO completion processing from being delayed
	indefinitely in the case that no new IOs are initiated.

1 Release Date    : Fri. Sep. 07 16:30:43 PST 2007 -
			(emaild-id:megaraidlinux@lsi.com)
			Sumant Patro
			Bo Yang

2 Current Version : 00.00.03.14
3 Older Version   : 00.00.03.13

1. Setting the max_sectors_per_req based on max SGL supported by the
	FW. Prior versions calculated this value from controller info
	(max_sectors_1, max_sectors_2). For certain controllers/FW,
	this was resulting in a value greater than max SGL supported
	by the FW. Issue was first reported by users running LUKS+XFS
	with megaraid_sas.  Thanks to RB for providing the logs and
	duplication steps that helped to get to the root cause of the
	issue.  2. Increased MFI_POLL_TIMEOUT_SECS to 60 seconds from
	10. FW may take a max of 60 seconds to respond to the INIT
	cmd.

1 Release Date    : Fri. June. 15 16:30:43 PST 2007 -
			(emaild-id:megaraidlinux@lsi.com)
			Sumant Patro
			Bo Yang

2 Current Version : 00.00.03.13
3 Older Version   : 00.00.03.12

1. Added the megasas_reset_timer routine to intercept cmd timeout and throttle io.

On Fri, 2007-03-16 at 16:44 -0600, James Bottomley wrote:
It looks like megaraid_sas at least needs this to throttle its commands
> as they begin to time out.  The code keeps the existing transport
> template use of eh_timed_out (and allows the transport to override the
> host if they both have this callback).
>
> James

1 Release Date    : Sat May. 12 16:30:43 PST 2007 -
			(emaild-id:megaraidlinux@lsi.com)
			Sumant Patro
			Bo Yang

2 Current Version : 00.00.03.12
3 Older Version   : 00.00.03.11

1.  When MegaSAS driver receives reset call from OS, driver waits in reset
routine for max 3 minutes for all pending command completion. Now driver will
call completion routine every 5 seconds from the reset routine instead of
waiting for depending on cmd completion from isr path.

1 Release Date    : Mon Apr. 30 10:25:52 PST 2007 -
			(emaild-id:megaraidlinux@lsi.com)
			Sumant Patro
			Bo Yang

2 Current Version : 00.00.03.11
3 Older Version   : 00.00.03.09

	1. Memory Manager for IOCTL removed for 2.6 kernels.
	   pci_alloc_consistent replaced by dma_alloc_coherent. With this
	   change there is no need of memory manager in the driver code

	On Wed, 2007-02-07 at 13:30 -0800, Andrew Morton wrote:
	> I suspect all this horror is due to stupidity in the DMA API.
	>
	> pci_alloc_consistent() just goes and assumes GFP_ATOMIC, whereas
	> the caller (megasas_mgmt_fw_ioctl) would have been perfectly happy
	> to use GFP_KERNEL.
	>
	> I bet this fixes it

	It does, but the DMA API was expanded to cope with this exact case, so
	use dma_alloc_coherent() directly in the megaraid code instead.  The dev
	is just &pci_dev->dev.

	James <James.Bottomley@SteelEye.com>

	3. SYNCHRONIZE_CACHE is not supported by FW and thus blocked by driver.
	4. Hibernation support added
	5. Performing diskdump while running IO in RHEL 4 was failing. Fixed.

1 Release Date    : Fri Feb. 09 14:36:28 PST 2007 -
			(emaild-id:megaraidlinux@lsi.com)
			Sumant Patro
			Bo Yang

2 Current Version : 00.00.03.09
3 Older Version   : 00.00.03.08

i.	Under heavy IO mid-layer prints "DRIVER_TIMEOUT" errors

	The driver now waits for 10 seconds to elapse instead of 5 (as in
	previous release) to resume IO.

1 Release Date    : Mon Feb. 05 11:35:24 PST 2007 -
			(emaild-id:megaraidlinux@lsi.com)
			Sumant Patro
			Bo Yang
2 Current Version : 00.00.03.08
3 Older Version   : 00.00.03.07

i.	Under heavy IO mid-layer prints "DRIVER_TIMEOUT" errors

	Fix:	The driver is now throttling IO.
	Checks added in megasas_queue_command to know if FW is able to
	process commands within timeout period. If number of retries
	is 2 or greater,the driver stops sending cmd to FW temporarily. IO is
	resumed if pending cmd count reduces to 16 or 5 seconds has elapsed
	from the time cmds were last sent to FW.

ii.	FW enables WCE bit in Mode Sense cmd for drives that are configured
	as WriteBack. The OS may send "SYNCHRONIZE_CACHE" cmd when Logical
	Disks are exposed with WCE=1. User is advised to enable Write Back
	mode only when the controller has battery backup. At this time
	Synhronize cache is not supported by the FW. Driver will short-cycle
	the cmd and return success without sending down to FW.

1 Release Date    : Sun Jan. 14 11:21:32 PDT 2007 -
		 Sumant Patro <Sumant.Patro@lsil.com>/Bo Yang
2 Current Version : 00.00.03.07
3 Older Version   : 00.00.03.06

i.	bios_param entry added in scsi_host_template that returns disk geometry
	information.

1 Release Date    : Fri Oct 20 11:21:32 PDT 2006 - Sumant Patro <Sumant.Patro@lsil.com>/Bo Yang
2 Current Version : 00.00.03.06
3 Older Version   : 00.00.03.05

1. Added new memory management module to support the IOCTL memory allocation. For IOCTL we try to allocate from the memory pool created during driver initialization. If mem pool is empty then we allocate at run time.
2. Added check in megasas_queue_command and dpc/isr routine to see if we have already declared adapter dead
   (hw_crit_error=1). If hw_crit_error==1, now we donot accept any processing of pending cmds/accept any cmd from OS

1 Release Date    : Mon Oct 02 11:21:32 PDT 2006 - Sumant Patro <Sumant.Patro@lsil.com>
2 Current Version : 00.00.03.05
3 Older Version   : 00.00.03.04

i.	PCI_DEVICE macro used

	Convert the pci_device_id-table of the megaraid_sas-driver to the PCI_DEVICE-macro, to safe some lines.

		- Henrik Kretzschmar <henne@nachtwindheim.de>
ii.	All compiler warnings removed
iii.	megasas_ctrl_info struct reverted to 3.02 release
iv.	Default value of megasas_dbg_lvl set to 0
v.	Removing in megasas_exit the sysfs entry created for megasas_dbg_lvl
vi.	In megasas_teardown_frame_pool(), cmd->frame was passed instead of
	cmd->sense to pci_pool_free. Fixed. Bug was pointed out by
	Eric Sesterhenn

1 Release Date    : Wed Sep 13 14:22:51 PDT 2006 - Sumant Patro <Sumant.Patro@lsil.com>
2 Current Version : 00.00.03.04
3 Older Version   : 00.00.03.03

i.	Added Reboot notify
ii.	Reduced by 1 max cmds sent to FW from Driver to make the reply_q_sz same
	as Max Cmds FW can support

1 Release Date    : Tue Aug 22 16:33:14 PDT 2006 - Sumant Patro <Sumant.Patro@lsil.com>
2 Current Version : 00.00.03.03
3 Older Version   : 00.00.03.02

i.	Send stop adapter to FW & Dump pending FW cmds before declaring adapter dead.
	New varible added to set dbg level.
ii.	Disable interrupt made as fn pointer as they are different for 1068 / 1078
iii.	Frame count optimization. Main frame can contain 2 SGE for 64 bit SGLs and
	3 SGE for 32 bit SGL
iv.	Tasklet added for cmd completion
v.	If FW in operational state before firing INIT, now we send RESET Flag to FW instead of just READY. This is used to do soft reset.
vi.	megasas_ctrl_prop structure updated (based on FW struct)
vii.	Added print : FW now in Ready State during initialization

1 Release Date    : Sun Aug 06 22:49:52 PDT 2006 - Sumant Patro <Sumant.Patro@lsil.com>
2 Current Version : 00.00.03.02
3 Older Version   : 00.00.03.01

i.	Added FW tranistion state for Hotplug scenario

1 Release Date    : Sun May 14 22:49:52 PDT 2006 - Sumant Patro <Sumant.Patro@lsil.com>
2 Current Version : 00.00.03.01
3 Older Version   : 00.00.02.04

i.	Added support for ZCR controller.

		New device id 0x413 added.

ii.	Bug fix : Disable controller interrupt before firing INIT cmd to FW.

		Interrupt is enabled after required initialization is over.
		This is done to ensure that driver is ready to handle interrupts when
		it is generated by the controller.

		-Sumant Patro <Sumant.Patro@lsil.com>

1 Release Date    : Wed Feb 03 14:31:44 PST 2006 - Sumant Patro <Sumant.Patro@lsil.com>
2 Current Version : 00.00.02.04
3 Older Version   : 00.00.02.04 

i.	Remove superflous instance_lock

	gets rid of the otherwise superflous instance_lock and avoids an unsave 
	unsynchronized access in the error handler.

		- Christoph Hellwig <hch@lst.de>


1 Release Date    : Wed Feb 03 14:31:44 PST 2006 - Sumant Patro <Sumant.Patro@lsil.com>
2 Current Version : 00.00.02.04
3 Older Version   : 00.00.02.04 

i.	Support for 1078 type (ppc IOP) controller, device id : 0x60 added.
	During initialization, depending on the device id, the template members 
	are initialized with function pointers specific to the ppc or 
	xscale controllers.  

		-Sumant Patro <Sumant.Patro@lsil.com>
		
1 Release Date    : Fri Feb 03 14:16:25 PST 2006 - Sumant Patro 
							<Sumant.Patro@lsil.com>
2 Current Version : 00.00.02.04
3 Older Version   : 00.00.02.02 
i.	Register 16 byte CDB capability with scsi midlayer 

	"Ths patch properly registers the 16 byte command length capability of the 
	megaraid_sas controlled hardware with the scsi midlayer. All megaraid_sas 
	hardware supports 16 byte CDB's."

		-Joshua Giles <joshua_giles@dell.com> 

1 Release Date    : Mon Jan 23 14:09:01 PST 2006 - Sumant Patro <Sumant.Patro@lsil.com>
2 Current Version : 00.00.02.02
3 Older Version   : 00.00.02.01 

i.	New template defined to represent each family of controllers (identified by processor used). 
	The template will have defintions that will be initialised to appropritae values for a specific family of controllers. The template definition has four function pointers. During driver initialisation the function pointers will be set based on the controller family type. This change is done to support new controllers that has different processors and thus different register set.

		-Sumant Patro <Sumant.Patro@lsil.com>

1 Release Date    : Mon Dec 19 14:36:26 PST 2005 - Sumant Patro <Sumant.Patro@lsil.com>
2 Current Version : 00.00.02.00-rc4 
3 Older Version   : 00.00.02.01 

i.	Code reorganized to remove code duplication in megasas_build_cmd. 

	"There's a lot of duplicate code megasas_build_cmd.  Move that out of the different codepathes and merge the reminder of megasas_build_cmd into megasas_queue_command"

		- Christoph Hellwig <hch@lst.de>

ii.	Defined MEGASAS_IOC_FIRMWARE32 for code paths that handles 32 bit applications in 64 bit systems.

	"MEGASAS_IOC_FIRMWARE can't be redefined if CONFIG_COMPAT is set, we need to define a MEGASAS_IOC_FIRMWARE32 define so native binaries continue to work"

		- Christoph Hellwig <hch@lst.de>
Commit	Line	Data
24541f99 YB	1
	2	1 Release Date : Thur.July. 24 11:41:51 PST 2008 -
	3	(emaild-id:megaraidlinux@lsi.com)
	4	Sumant Patro
	5	Bo Yang
	6
	7	2 Current Version : 00.00.04.01
	8	3 Older Version : 00.00.03.22
	9
	10	1. Add the new controller (0078, 0079) support to the driver
	11	Those controllers are LSI's next generatation(gen2) SAS controllers.
	12
	13	1 Release Date : Mon.June. 23 10:12:45 PST 2008 -
	14	(emaild-id:megaraidlinux@lsi.com)
	15	Sumant Patro
	16	Bo Yang
	17
	18	2 Current Version : 00.00.03.22
	19	3 Older Version : 00.00.03.20
	20
	21	1. Add shutdown DCMD cmd to the shutdown routine to make FW shutdown proper.
	22	2. Unexpected interrupt occurs in HWR Linux driver, add the dumy readl pci flush will fix this issue.
	23
127ce971	24	1 Release Date : Mon. March 10 11:02:31 PDT 2008 -
	25	(emaild-id:megaraidlinux@lsi.com)
	26	Sumant Patro
	27	Bo Yang
	28
	29	2 Current Version : 00.00.03.20-RC1
	30	3 Older Version : 00.00.03.16
	31
	32	1. Rollback the sense info implementation
	33	Sense buffer ptr data type in the ioctl path is reverted back
	34	to u32 * as in previous versions of driver.
	35
	36	2. Fixed the driver frame count.
	37	When Driver sent wrong frame count to firmware. As this
	38	particular command is sent to drive, FW is seeing continuous
	39	chip resets and so the command will timeout.
	40
	41	3. Add the new controller(1078DE) support to the driver
	42	and Increase the max_wait to 60 from 10 in the controller
	43	operational status. With this max_wait increase, driver will
	44	make sure the FW will finish the pending cmd for KDUMP case.
	45
f28cd7cf	46	1 Release Date : Thur. Nov. 07 16:30:43 PST 2007 -
	47	(emaild-id:megaraidlinux@lsi.com)
	48	Sumant Patro
	49	Bo Yang
	50
	51	2 Current Version : 00.00.03.16
	52	3 Older Version : 00.00.03.15
	53
	54	1. Increased MFI_POLL_TIMEOUT_SECS to 60 seconds from 10. FW may take
	55	a max of 60 seconds to respond to the INIT cmd.
	56
	57	1 Release Date : Fri. Sep. 07 16:30:43 PST 2007 -
	58	(emaild-id:megaraidlinux@lsi.com)
	59	Sumant Patro
	60	Bo Yang
	61
	62	2 Current Version : 00.00.03.15
	63	3 Older Version : 00.00.03.14
	64
	65	1. Added module parameter "poll_mode_io" to support for "polling"
	66	(reduced interrupt operation). In this mode, IO completion
	67	interrupts are delayed. At the end of initiating IOs, the
	68	driver schedules for cmd completion if there are pending cmds
	69	to be completed. A timer-based interrupt has also been added
	70	to prevent IO completion processing from being delayed
	71	indefinitely in the case that no new IOs are initiated.
	72
	73	1 Release Date : Fri. Sep. 07 16:30:43 PST 2007 -
	74	(emaild-id:megaraidlinux@lsi.com)
	75	Sumant Patro
	76	Bo Yang
	77
	78	2 Current Version : 00.00.03.14
	79	3 Older Version : 00.00.03.13
	80
	81	1. Setting the max_sectors_per_req based on max SGL supported by the
	82	FW. Prior versions calculated this value from controller info
	83	(max_sectors_1, max_sectors_2). For certain controllers/FW,
	84	this was resulting in a value greater than max SGL supported
	85	by the FW. Issue was first reported by users running LUKS+XFS
	86	with megaraid_sas. Thanks to RB for providing the logs and
	87	duplication steps that helped to get to the root cause of the
	88	issue. 2. Increased MFI_POLL_TIMEOUT_SECS to 60 seconds from
	89	10. FW may take a max of 60 seconds to respond to the INIT
	90	cmd.
	91
	92	1 Release Date : Fri. June. 15 16:30:43 PST 2007 -
	93	(emaild-id:megaraidlinux@lsi.com)
	94	Sumant Patro
	95	Bo Yang
	96
	97	2 Current Version : 00.00.03.13
	98	3 Older Version : 00.00.03.12
	99
	100	1. Added the megasas_reset_timer routine to intercept cmd timeout and throttle io.
	101
	102	On Fri, 2007-03-16 at 16:44 -0600, James Bottomley wrote:
	103	It looks like megaraid_sas at least needs this to throttle its commands
	104	> as they begin to time out. The code keeps the existing transport
	105	> template use of eh_timed_out (and allows the transport to override the
	106	> host if they both have this callback).
	107	>
	108	> James
	109
110	1 Release Date : Sat May. 12 16:30:43 PST 2007 -
111	(emaild-id:megaraidlinux@lsi.com)
112	Sumant Patro
113	Bo Yang
114
115	2 Current Version : 00.00.03.12
116	3 Older Version : 00.00.03.11
117
118	1. When MegaSAS driver receives reset call from OS, driver waits in reset
119	routine for max 3 minutes for all pending command completion. Now driver will
120	call completion routine every 5 seconds from the reset routine instead of
121	waiting for depending on cmd completion from isr path.
122
123	1 Release Date : Mon Apr. 30 10:25:52 PST 2007 -
124	(emaild-id:megaraidlinux@lsi.com)
125	Sumant Patro
126	Bo Yang
127
128	2 Current Version : 00.00.03.11
129	3 Older Version : 00.00.03.09
130
131	1. Memory Manager for IOCTL removed for 2.6 kernels.
132	pci_alloc_consistent replaced by dma_alloc_coherent. With this
133	change there is no need of memory manager in the driver code
134
135	On Wed, 2007-02-07 at 13:30 -0800, Andrew Morton wrote:
136	> I suspect all this horror is due to stupidity in the DMA API.
137	>
138	> pci_alloc_consistent() just goes and assumes GFP_ATOMIC, whereas
139	> the caller (megasas_mgmt_fw_ioctl) would have been perfectly happy
140	> to use GFP_KERNEL.
141	>
142	> I bet this fixes it
143
144	It does, but the DMA API was expanded to cope with this exact case, so
145	use dma_alloc_coherent() directly in the megaraid code instead. The dev
146	is just &pci_dev->dev.
147
148	James <James.Bottomley@SteelEye.com>
149
150	3. SYNCHRONIZE_CACHE is not supported by FW and thus blocked by driver.
151	4. Hibernation support added
152	5. Performing diskdump while running IO in RHEL 4 was failing. Fixed.
153
154	1 Release Date : Fri Feb. 09 14:36:28 PST 2007 -
155	(emaild-id:megaraidlinux@lsi.com)
156	Sumant Patro
157	Bo Yang
158
159	2 Current Version : 00.00.03.09
160	3 Older Version : 00.00.03.08
161
162	i. Under heavy IO mid-layer prints "DRIVER_TIMEOUT" errors
163
164	The driver now waits for 10 seconds to elapse instead of 5 (as in
165	previous release) to resume IO.
166
167	1 Release Date : Mon Feb. 05 11:35:24 PST 2007 -
168	(emaild-id:megaraidlinux@lsi.com)
169	Sumant Patro
170	Bo Yang
171	2 Current Version : 00.00.03.08
172	3 Older Version : 00.00.03.07
173
174	i. Under heavy IO mid-layer prints "DRIVER_TIMEOUT" errors
175
176	Fix: The driver is now throttling IO.
177	Checks added in megasas_queue_command to know if FW is able to
178	process commands within timeout period. If number of retries
179	is 2 or greater,the driver stops sending cmd to FW temporarily. IO is
180	resumed if pending cmd count reduces to 16 or 5 seconds has elapsed
181	from the time cmds were last sent to FW.
182
183	ii. FW enables WCE bit in Mode Sense cmd for drives that are configured
184	as WriteBack. The OS may send "SYNCHRONIZE_CACHE" cmd when Logical
185	Disks are exposed with WCE=1. User is advised to enable Write Back
186	mode only when the controller has battery backup. At this time
187	Synhronize cache is not supported by the FW. Driver will short-cycle
af901ca1	188	the cmd and return success without sending down to FW.
f28cd7cf	189
	190	1 Release Date : Sun Jan. 14 11:21:32 PDT 2007 -
	191	Sumant Patro <Sumant.Patro@lsil.com>/Bo Yang
	192	2 Current Version : 00.00.03.07
	193	3 Older Version : 00.00.03.06
	194
	195	i. bios_param entry added in scsi_host_template that returns disk geometry
	196	information.
	197
	198	1 Release Date : Fri Oct 20 11:21:32 PDT 2006 - Sumant Patro <Sumant.Patro@lsil.com>/Bo Yang
	199	2 Current Version : 00.00.03.06
	200	3 Older Version : 00.00.03.05
	201
	202	1. Added new memory management module to support the IOCTL memory allocation. For IOCTL we try to allocate from the memory pool created during driver initialization. If mem pool is empty then we allocate at run time.
	203	2. Added check in megasas_queue_command and dpc/isr routine to see if we have already declared adapter dead
	204	(hw_crit_error=1). If hw_crit_error==1, now we donot accept any processing of pending cmds/accept any cmd from OS
e4a082c7	205
2a3681e5 SP	206	1 Release Date : Mon Oct 02 11:21:32 PDT 2006 - Sumant Patro <Sumant.Patro@lsil.com>
	207	2 Current Version : 00.00.03.05
	208	3 Older Version : 00.00.03.04
	209
	210	i. PCI_DEVICE macro used
	211
	212	Convert the pci_device_id-table of the megaraid_sas-driver to the PCI_DEVICE-macro, to safe some lines.
	213
	214	- Henrik Kretzschmar <henne@nachtwindheim.de>
	215	ii. All compiler warnings removed
	216	iii. megasas_ctrl_info struct reverted to 3.02 release
	217	iv. Default value of megasas_dbg_lvl set to 0
	218	v. Removing in megasas_exit the sysfs entry created for megasas_dbg_lvl
	219	vi. In megasas_teardown_frame_pool(), cmd->frame was passed instead of
	220	cmd->sense to pci_pool_free. Fixed. Bug was pointed out by
	221	Eric Sesterhenn
	222
	223	1 Release Date : Wed Sep 13 14:22:51 PDT 2006 - Sumant Patro <Sumant.Patro@lsil.com>
	224	2 Current Version : 00.00.03.04
	225	3 Older Version : 00.00.03.03
	226
	227	i. Added Reboot notify
	228	ii. Reduced by 1 max cmds sent to FW from Driver to make the reply_q_sz same
	229	as Max Cmds FW can support
	230
	231	1 Release Date : Tue Aug 22 16:33:14 PDT 2006 - Sumant Patro <Sumant.Patro@lsil.com>
	232	2 Current Version : 00.00.03.03
	233	3 Older Version : 00.00.03.02
	234
	235	i. Send stop adapter to FW & Dump pending FW cmds before declaring adapter dead.
	236	New varible added to set dbg level.
	237	ii. Disable interrupt made as fn pointer as they are different for 1068 / 1078
	238	iii. Frame count optimization. Main frame can contain 2 SGE for 64 bit SGLs and
	239	3 SGE for 32 bit SGL
	240	iv. Tasklet added for cmd completion
	241	v. If FW in operational state before firing INIT, now we send RESET Flag to FW instead of just READY. This is used to do soft reset.
	242	vi. megasas_ctrl_prop structure updated (based on FW struct)
	243	vii. Added print : FW now in Ready State during initialization
	244
	245	1 Release Date : Sun Aug 06 22:49:52 PDT 2006 - Sumant Patro <Sumant.Patro@lsil.com>
	246	2 Current Version : 00.00.03.02
	247	3 Older Version : 00.00.03.01
	248
	249	i. Added FW tranistion state for Hotplug scenario
	250
0e98936c SP	251	1 Release Date : Sun May 14 22:49:52 PDT 2006 - Sumant Patro <Sumant.Patro@lsil.com>
	252	2 Current Version : 00.00.03.01
	253	3 Older Version : 00.00.02.04
	254
	255	i. Added support for ZCR controller.
	256
	257	New device id 0x413 added.
	258
	259	ii. Bug fix : Disable controller interrupt before firing INIT cmd to FW.
	260
	261	Interrupt is enabled after required initialization is over.
	262	This is done to ensure that driver is ready to handle interrupts when
	263	it is generated by the controller.
	264
	265	-Sumant Patro <Sumant.Patro@lsil.com>
	266
e4a082c7 SP	267	1 Release Date : Wed Feb 03 14:31:44 PST 2006 - Sumant Patro <Sumant.Patro@lsil.com>
	268	2 Current Version : 00.00.02.04
	269	3 Older Version : 00.00.02.04
	270
	271	i. Remove superflous instance_lock
	272
	273	gets rid of the otherwise superflous instance_lock and avoids an unsave
	274	unsynchronized access in the error handler.
	275
	276	- Christoph Hellwig <hch@lst.de>
	277
	278
f9876f0b SP	279	1 Release Date : Wed Feb 03 14:31:44 PST 2006 - Sumant Patro <Sumant.Patro@lsil.com>
	280	2 Current Version : 00.00.02.04
	281	3 Older Version : 00.00.02.04
	282
	283	i. Support for 1078 type (ppc IOP) controller, device id : 0x60 added.
	284	During initialization, depending on the device id, the template members
	285	are initialized with function pointers specific to the ppc or
	286	xscale controllers.
	287
	288	-Sumant Patro <Sumant.Patro@lsil.com>
	289
122da302 JG	290	1 Release Date : Fri Feb 03 14:16:25 PST 2006 - Sumant Patro
	291	<Sumant.Patro@lsil.com>
	292	2 Current Version : 00.00.02.04
	293	3 Older Version : 00.00.02.02
	294	i. Register 16 byte CDB capability with scsi midlayer
	295
	296	"Ths patch properly registers the 16 byte command length capability of the
	297	megaraid_sas controlled hardware with the scsi midlayer. All megaraid_sas
	298	hardware supports 16 byte CDB's."
	299
	300	-Joshua Giles <joshua_giles@dell.com>
	301
1341c939 SP	302	1 Release Date : Mon Jan 23 14:09:01 PST 2006 - Sumant Patro <Sumant.Patro@lsil.com>
	303	2 Current Version : 00.00.02.02
	304	3 Older Version : 00.00.02.01
	305
	306	i. New template defined to represent each family of controllers (identified by processor used).
	307	The template will have defintions that will be initialised to appropritae values for a specific family of controllers. The template definition has four function pointers. During driver initialisation the function pointers will be set based on the controller family type. This change is done to support new controllers that has different processors and thus different register set.
	308
	309	-Sumant Patro <Sumant.Patro@lsil.com>
	310
cb59aa6a SP	311	1 Release Date : Mon Dec 19 14:36:26 PST 2005 - Sumant Patro <Sumant.Patro@lsil.com>
	312	2 Current Version : 00.00.02.00-rc4
	313	3 Older Version : 00.00.02.01
	314
	315	i. Code reorganized to remove code duplication in megasas_build_cmd.
	316
	317	"There's a lot of duplicate code megasas_build_cmd. Move that out of the different codepathes and merge the reminder of megasas_build_cmd into megasas_queue_command"
	318
	319	- Christoph Hellwig <hch@lst.de>
	320
	321	ii. Defined MEGASAS_IOC_FIRMWARE32 for code paths that handles 32 bit applications in 64 bit systems.
	322
	323	"MEGASAS_IOC_FIRMWARE can't be redefined if CONFIG_COMPAT is set, we need to define a MEGASAS_IOC_FIRMWARE32 define so native binaries continue to work"
	324
	325	- Christoph Hellwig <hch@lst.de>