1Release Date	: Thu Nov 16 15:32:35 EST 2006 -
2				Sumant Patro <sumant.patro@lsi.com>
3Current Version : 2.20.5.1 (scsi module), 2.20.2.6 (cmm module)
4Older Version	: 2.20.4.9 (scsi module), 2.20.2.6 (cmm module)
5
61.	Changes in Initialization to fix kdump failure.
7	Send SYNC command on loading.
8	This command clears the pending commands in the adapter
9	and re-initialize its internal RAID structure.
10	Without this change, megaraid driver either panics or fails to
11	initialize the adapter during kdump's second kernel boot
12	if there are pending commands or interrupts from other devices
13	sharing the same IRQ.
142. 	Authors email-id domain name changed from lsil.com to lsi.com.
15	Also modified the MODULE_AUTHOR to megaraidlinux@lsi.com
16
17Release Date	: Fri May 19 09:31:45 EST 2006 - Seokmann Ju <sju@lsil.com>
18Current Version : 2.20.4.9 (scsi module), 2.20.2.6 (cmm module)
19Older Version	: 2.20.4.8 (scsi module), 2.20.2.6 (cmm module)
20
211.	Fixed a bug in megaraid_init_mbox().
22	Customer reported "garbage in file on x86_64 platform".
23	Root Cause: the driver registered controllers as 64-bit DMA capable
24	for those which are not support it.
25	Fix: Made change in the function inserting identification mechanism
26	identifying 64-bit DMA capable controllers.
27
28	> -----Original Message-----
29	> From: Vasily Averin [mailto:vvs@sw.ru]
30	> Sent: Thursday, May 04, 2006 2:49 PM
31	> To: linux-scsi@vger.kernel.org; Kolli, Neela; Mukker, Atul;
32	> Ju, Seokmann; Bagalkote, Sreenivas;
33	> James.Bottomley@SteelEye.com; devel@openvz.org
34	> Subject: megaraid_mbox: garbage in file
35	>
36	> Hello all,
37	>
38	> I've investigated customers claim on the unstable work of
39	> their node and found a
40	> strange effect: reading from some files leads to the
41	>  "attempt to access beyond end of device" messages.
42	>
43	> I've checked filesystem, memory on the node, motherboard BIOS
44	> version, but it
45	> does not help and issue still has been reproduced by simple
46	> file reading.
47	>
48	> Reproducer is simple:
49	>
50	> echo 0xffffffff >/proc/sys/dev/scsi/logging_level ;
51	> cat /vz/private/101/root/etc/ld.so.cache >/tmp/ttt  ;
52	> echo 0 >/proc/sys/dev/scsi/logging
53	>
54	> It leads to the following messages in dmesg
55	>
56	> sd_init_command: disk=sda, block=871769260, count=26
57	> sda : block=871769260
58	> sda : reading 26/26 512 byte blocks.
59	> scsi_add_timer: scmd: f79ed980, time: 7500, (c02b1420)
60	> sd 0:1:0:0: send 0xf79ed980                  sd 0:1:0:0:
61	>         command: Read (10): 28 00 33 f6 24 ac 00 00 1a 00
62	> buffer = 0xf7cfb540, bufflen = 13312, done = 0xc0366b40,
63	> queuecommand 0xc0344010
64	> leaving scsi_dispatch_cmnd()
65	> scsi_delete_timer: scmd: f79ed980, rtn: 1
66	> sd 0:1:0:0: done 0xf79ed980 SUCCESS        0 sd 0:1:0:0:
67	>         command: Read (10): 28 00 33 f6 24 ac 00 00 1a 00
68	> scsi host busy 1 failed 0
69	> sd 0:1:0:0: Notifying upper driver of completion (result 0)
70	> sd_rw_intr: sda: res=0x0
71	> 26 sectors total, 13312 bytes done.
72	> use_sg is 4
73	> attempt to access beyond end of device
74	> sda6: rw=0, want=1044134458, limit=951401367
75	> Buffer I/O error on device sda6, logical block 522067228
76	> attempt to access beyond end of device
77
782.	When INQUIRY with EVPD bit set issued to the MegaRAID controller,
79	system memory gets corrupted.
80	Root Cause: MegaRAID F/W handle the INQUIRY with EVPD bit set
81	incorrectly.
82	Fix: MegaRAID F/W has fixed the problem and being process of release,
83	soon. Meanwhile, driver will filter out the request.
84
853.	One member in the data structure of the driver leads to unaligned
86	issue on 64-bit platform.
87	Customer reported "kernel unaligned access address" issue when
88	application communicates with MegaRAID HBA driver.
89	Root Cause: in uioc_t structure, one of member had misaligned and it
90	led system to display the error message.
91	Fix: A patch submitted to community from following folk.
92
93	> -----Original Message-----
94	> From: linux-scsi-owner@vger.kernel.org
95	> [mailto:linux-scsi-owner@vger.kernel.org] On Behalf Of Sakurai Hiroomi
96	> Sent: Wednesday, July 12, 2006 4:20 AM
97	> To: linux-scsi@vger.kernel.org; linux-kernel@vger.kernel.org
98	> Subject: Re: Help: strange messages from kernel on IA64 platform
99	>
100	> Hi,
101	>
102	> I saw same message.
103	>
104	> When GAM(Global Array Manager) is started, The following
105	> message output.
106	> kernel: kernel unaligned access to 0xe0000001fe1080d4,
107	> ip=0xa000000200053371
108	>
109	> The uioc structure used by ioctl is defined by packed,
110	> the allignment of each member are disturbed.
111	> In a 64 bit structure, the allignment of member doesn't fit 64 bit
112	> boundary. this causes this messages.
113	> In a 32 bit structure, we don't see the message because the allinment
114	> of member fit 32 bit boundary even if packed is specified.
115	>
116	> patch
117	> I Add 32 bit dummy member to fit 64 bit boundary. I tested.
118	> We confirmed this patch fix the problem by IA64 server.
119	>
120	> **************************************************************
121	> ****************
122	> --- linux-2.6.9/drivers/scsi/megaraid/megaraid_ioctl.h.orig
123	> 2006-04-03 17:13:03.000000000 +0900
124	> +++ linux-2.6.9/drivers/scsi/megaraid/megaraid_ioctl.h
125	> 2006-04-03 17:14:09.000000000 +0900
126	> @@ -132,6 +132,10 @@
127	>  /* Driver Data: */
128	>          void __user *           user_data;
129	>          uint32_t                user_data_len;
130	> +
131	> +        /* 64bit alignment */
132	> +        uint32_t                pad_0xBC;
133	> +
134	>          mraid_passthru_t        __user *user_pthru;
135	>
136	>          mraid_passthru_t        *pthru32;
137	> **************************************************************
138	> ****************
139
140Release Date	: Mon Apr 11 12:27:22 EST 2006 - Seokmann Ju <sju@lsil.com>
141Current Version : 2.20.4.8 (scsi module), 2.20.2.6 (cmm module)
142Older Version	: 2.20.4.7 (scsi module), 2.20.2.6 (cmm module)
143
1441.	Fixed a bug in megaraid_reset_handler().
145	Customer reported "Unable to handle kernel NULL pointer dereference
146	at virtual address 00000000" when system goes to reset condition
147	for some reason. It happened randomly.
148	Root Cause: in the megaraid_reset_handler(), there is possibility not
149	returning pending packets in the pend_list if there are multiple
150	pending packets.
151	Fix: Made the change in the driver so that it will return all packets
152	in the pend_list.
153
1542.	Added change request.
155	As found in the following URL, rmb() only didn't help the
156	problem. I had to increase the loop counter to 0xFFFFFF. (6 F's)
157	http://marc.theaimsgroup.com/?l=linux-scsi&m=110971060502497&w=2
158
159	I attached a patch for your reference, too.
160	Could you check and get this fix in your driver?
161
162	Best Regards,
163	Jun'ichi Nomura
164
165Release Date	: Fri Nov 11 12:27:22 EST 2005 - Seokmann Ju <sju@lsil.com>
166Current Version : 2.20.4.7 (scsi module), 2.20.2.6 (cmm module)
167Older Version	: 2.20.4.6 (scsi module), 2.20.2.6 (cmm module)
168
1691.	Sorted out PCI IDs to remove megaraid support overlaps.
170	Based on the patch from Daniel, sorted out PCI IDs along with
171	character node name change from 'megadev' to 'megadev_legacy' to avoid
172	conflict.
173	---
174	Hopefully we'll be getting the build restriction zapped much sooner,
175	but we should also be thinking about totally removing the hardware
176	support overlap in the megaraid drivers.
177
178	This patch pencils in a date of Feb 06 for this, and performs some
179	printk abuse in hope that existing legacy users might pick up on what's
180	going on.
181
182	Signed-off-by: Daniel Drake <dsd@gentoo.org>
183	---
184
1852.	Fixed a issue: megaraid always fails to reset handler.
186	---
187	I found that the megaraid driver always fails to reset the
188	adapter with the following message:
189		megaraid: resetting the host...
190		megaraid mbox: reset sequence completed successfully
191		megaraid: fast sync command timed out
192		megaraid: reservation reset failed
193	when the "Cluster mode" of the adapter BIOS is enabled.
194	So, whenever the reset occurs, the adapter goes to
195	offline and just become unavailable.
196
197	Jun'ichi Nomura [mailto:jnomura@mtc.biglobe.ne.jp]
198	---
199
200Release Date	: Mon Mar 07 12:27:22 EST 2005 - Seokmann Ju <sju@lsil.com>
201Current Version : 2.20.4.6 (scsi module), 2.20.2.6 (cmm module)
202Older Version	: 2.20.4.5 (scsi module), 2.20.2.5 (cmm module)
203
2041.	Added IOCTL backward compatibility.
205	Convert megaraid_mm driver to new compat_ioctl entry points.
206	I don't have easy access to hardware, so only compile tested.
207		- Signed-off-by:Andi Kleen <ak@muc.de>
208
2092.	megaraid_mbox fix: wrong order of arguments in memset()
210	That, BTW, shows why cross-builds are useful-the only indication of
211	problem had been a new warning showing up in sparse output on alpha
212	build (number of exceeding 256 got truncated).
213		- Signed-off-by: Al Viro
214		<viro@parcelfarce.linux.theplanet.co.uk>
215
2163.	Convert pci_module_init to pci_register_driver
217	Convert from pci_module_init to pci_register_driver
218	(from:http://kernelnewbies.org/KernelJanitors/TODO)
219		- Signed-off-by: Domen Puncer <domen@coderock.org>
220
2214.	Use the pre defined DMA mask constants from dma-mapping.h
222	Use the DMA_{64,32}BIT_MASK constants from dma-mapping.h when calling
223	pci_set_dma_mask() or pci_set_consistent_dma_mask(). See
224	http://marc.theaimsgroup.com/?t=108001993000001&r=1&w=2 for more
225	details.
226		Signed-off-by: Tobias Klauser <tklauser@nuerscht.ch>
227		Signed-off-by: Domen Puncer <domen@coderock.org>
228
2295.	Remove SSID checking for Dobson, Lindsay, and Verde based products.
230	Checking the SSVID/SSID for controllers which have Dobson, Lindsay,
231	and Verde is unnecessary because device ID has been assigned by LSI
232	and it is unique value. So, all controllers with these IOPs have to be
233	supported by the driver regardless SSVID/SSID.
234
2356.	Date Thu, 27 Jan 2005 04:31:09 +0100
236	From Herbert Poetzl <>
237	Subject RFC: assert_spin_locked() for 2.6
238
239	Greetings!
240
241	overcautious programming will kill your kernel ;)
242	ever thought about checking a spin_lock or even
243	asserting that it must be held (maybe just for
244	spinlock debugging?) ...
245
246	there are several checks present in the kernel
247	where somebody does a variation on the following:
248
249	  BUG_ON(!spin_is_locked(&some_lock));
250
251	so what's wrong about that? nothing, unless you
252	compile the code with CONFIG_DEBUG_SPINLOCK but
253	without CONFIG_SMP ... in which case the BUG()
254	will kill your kernel ...
255
256	maybe it's not advised to make such assertions,
257	but here is a solution which works for me ...
258	(compile tested for sh, x86_64 and x86, boot/run
259	tested for x86 only)
260
261	best,
262	Herbert
263
264		- Herbert Poetzl <herbert@13thfloor.at>, Thu, 27 Jan 2005
265
266Release Date	: Thu Feb 03 12:27:22 EST 2005 - Seokmann Ju <sju@lsil.com>
267Current Version	: 2.20.4.5 (scsi module), 2.20.2.5 (cmm module)
268Older Version	: 2.20.4.4 (scsi module), 2.20.2.4 (cmm module)
269
2701.	Modified name of two attributes in scsi_host_template.
271	On Wed, 2005-02-02 at 10:56 -0500, Ju, Seokmann wrote:
272	> +	.sdev_attrs			= megaraid_device_attrs,
273	> +	.shost_attrs			= megaraid_class_device_attrs,
274
275	These are, perhaps, slightly confusing names.
276	The terms device and class_device have well defined meanings in the
277	generic device model, neither of which is what you mean here.
278	Why not simply megaraid_sdev_attrs and megaraid_shost_attrs?
279
280	Other than this, it looks fine to me too.
281
282Release Date	: Thu Jan 27 00:01:03 EST 2005 - Atul Mukker <atulm@lsil.com>
283Current Version	: 2.20.4.4 (scsi module), 2.20.2.5 (cmm module)
284Older Version	: 2.20.4.3 (scsi module), 2.20.2.4 (cmm module)
285
2861.	Bump up the version of scsi module due to its conflict.
287
288Release Date	: Thu Jan 21 00:01:03 EST 2005 - Atul Mukker <atulm@lsil.com>
289Current Version	: 2.20.4.3 (scsi module), 2.20.2.5 (cmm module)
290Older Version	: 2.20.4.2 (scsi module), 2.20.2.4 (cmm module)
291
2921.	Remove driver ioctl for logical drive to scsi address translation and
293	replace with the sysfs attribute. To remove drives and change
294	capacity, application shall now use the device attribute to get the
295	logical drive number for a scsi device. For adding newly created
296	logical drives, class device attribute would be required to uniquely
297	identify each controller.
298		- Atul Mukker <atulm@lsil.com>
299
300	"James, I've been thinking about this a little more, and you may be on
301	to something here. Let each driver add files as such:"
302
303		- Matt Domsch <Matt_Domsch@dell.com>, 12.15.2004
304		 linux-scsi mailing list
305
306
307	"Then, if you simply publish your LD number as an extra parameter of
308	the device, you can look through /sys to find it."
309
310		- James Bottomley <James.Bottomley@SteelEye.com>, 01.03.2005
311		 linux-scsi mailing list
312
313
314	"I don't see why not ... it's your driver, you can publish whatever
315	extra information you need as scsi_device attributes; that was one of
316	the designs of the extensible attribute system."
317
318		- James Bottomley <James.Bottomley@SteelEye.com>, 01.06.2005
319		 linux-scsi mailing list
320
3212.	Add AMI megaraid support - Brian King <brking@charter.net>
322		PCI_VENDOR_ID_AMI, PCI_DEVICE_ID_AMI_MEGARAID3,
323		PCI_VENDOR_ID_AMI, PCI_SUBSYS_ID_PERC3_DC,
324
3253.	Make some code static - Adrian Bunk <bunk@stusta.de>
326	Date:	Mon, 15 Nov 2004 03:14:57 +0100
327
328	The patch below makes some needlessly global code static.
329	-wait_queue_head_t wait_q;
330	+static wait_queue_head_t wait_q;
331
332	Signed-off-by: Adrian Bunk <bunk@stusta.de>
333
3344.	Added NEC ROMB support - NEC MegaRAID PCI Express ROMB controller
335		PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_MEGARAID_NEC_ROMB_2E,
336		PCI_SUBSYS_ID_NEC, PCI_SUBSYS_ID_MEGARAID_NEC_ROMB_2E,
337
3385.	Fixed Tape drive issue : For any Direct CDB command to physical device
339	including tape, timeout value set by driver was 10 minutes. With this
340	value, most of command will return within timeout. However, for those
341	command like ERASE or FORMAT, it takes more than an hour depends on
342	capacity of the device and the command could be terminated before it
343	completes.
344	To address this issue, the 'timeout' field in the DCDB command will
345	have NO TIMEOUT (i.e., 4) value as its timeout on DCDB command.
346
347
348
349Release Date	: Thu Dec  9 19:10:23 EST 2004
350	- Sreenivas Bagalkote <sreenib@lsil.com>
351
352Current Version	: 2.20.4.2 (scsi module), 2.20.2.4 (cmm module)
353Older Version	: 2.20.4.1 (scsi module), 2.20.2.3 (cmm module)
354
355i.	Introduced driver ioctl that returns scsi address for a given ld.
356
357	"Why can't the existing sysfs interfaces be used to do this?"
358		- Brian King (brking@us.ibm.com)
359
360	"I've looked into solving this another way, but I cannot see how
361	to get this driver-private mapping of logical drive number-> HCTL
362	without putting code something like this into the driver."
363
364	"...and by providing a mapping a function to userspace, the driver
365	is free to change its mapping algorithm in the future if necessary .."
366		- Matt Domsch (Matt_Domsch@dell.com)
367
368Release Date	: Thu Dec  9 19:02:14 EST 2004 - Sreenivas Bagalkote <sreenib@lsil.com>
369
370Current Version	: 2.20.4.1 (scsi module), 2.20.2.3 (cmm module)
371Older Version	: 2.20.4.1 (scsi module), 2.20.2.2 (cmm module)
372
373i.	Fix a bug in kioc's dma buffer deallocation
374
375Release Date	: Thu Nov  4 18:24:56 EST 2004 - Sreenivas Bagalkote <sreenib@lsil.com>
376
377Current Version	: 2.20.4.1 (scsi module), 2.20.2.2 (cmm module)
378Older Version	: 2.20.4.0 (scsi module), 2.20.2.1 (cmm module)
379
380i.	Handle IOCTL cmd timeouts more properly.
381
382ii.	pci_dma_sync_{sg,single}_for_cpu was introduced into megaraid_mbox
383	incorrectly (instead of _for_device). Changed to appropriate
384	pci_dma_sync_{sg,single}_for_device.
385
386Release Date	: Wed Oct 06 11:15:29 EDT 2004 - Sreenivas Bagalkote <sreenib@lsil.com>
387Current Version	: 2.20.4.0 (scsi module), 2.20.2.1 (cmm module)
388Older Version	: 2.20.4.0 (scsi module), 2.20.2.0 (cmm module)
389
390i.	Remove CONFIG_COMPAT around register_ioctl32_conversion
391
392Release Date	: Mon Sep 27 22:15:07 EDT 2004 - Atul Mukker <atulm@lsil.com>
393Current Version	: 2.20.4.0 (scsi module), 2.20.2.0 (cmm module)
394Older Version	: 2.20.3.1 (scsi module), 2.20.2.0 (cmm module)
395
396i.	Fix data corruption. Because of a typo in the driver, the IO packets
397	were wrongly shared by the ioctl path. This causes a whole IO command
398	to be replaced by an incoming ioctl command.
399
400Release Date	: Tue Aug 24 09:43:35 EDT 2004 - Atul Mukker <atulm@lsil.com>
401Current Version	: 2.20.3.1 (scsi module), 2.20.2.0 (cmm module)
402Older Version	: 2.20.3.0 (scsi module), 2.20.2.0 (cmm module)
403
404i.	Function reordering so that inline functions are defined before they
405	are actually used. It is now mandatory for GCC 3.4.1 (current stable)
406
407	Declare some heavy-weight functions to be non-inlined,
408	megaraid_mbox_build_cmd, megaraid_mbox_runpendq,
409	megaraid_mbox_prepare_pthru, megaraid_mbox_prepare_epthru,
410	megaraid_busywait_mbox
411
412		- Andrew Morton, 08.19.2004
413		linux-scsi mailing list
414
415	"Something else to clean up after inclusion: every instance of an
416	inline function is actually rendered as a full function call, because
417	the function is always used before it is defined.  Atul, please
418	re-arrange the code to eliminate the need for most (all) of the
419	function prototypes at the top of each file, and define (not just
420	declare with a prototype) each inline function before its first use"
421
422		- Matt Domsch <Matt_Domsch@dell.com>, 07.27.2004
423		linux-scsi mailing list
424
425
426ii.	Display elapsed time (countdown) while waiting for FW to boot.
427
428iii.	Module compilation reorder in Makefile so that unresolved symbols do
429	not occur when driver is compiled non-modular.
430
431		Patrick J. LoPresti <patl@users.sourceforge.net>, 8.22.2004
432		linux-scsi mailing list
433
434
435Release Date	: Thu Aug 19 09:58:33 EDT 2004 - Atul Mukker <atulm@lsil.com>
436Current Version	: 2.20.3.0 (scsi module), 2.20.2.0 (cmm module)
437Older Version	: 2.20.2.0 (scsi module), 2.20.1.0 (cmm module)
438
439i.	When copying the mailbox packets, copy only first 14 bytes (for 32-bit
440	mailboxes) and only first 22 bytes (for 64-bit mailboxes). This is to
441	avoid getting the stale values for busy bit. We want to set the busy
442	bit just before issuing command to the FW.
443
444ii.	In the reset handling, if the reset command is not owned by the
445	driver, do not (wrongly) print information for the "attached" driver
446	packet.
447
448iii.	Have extended wait when issuing command in synchronous mode. This is
449	required for the cases where the option ROM is disabled and there is
450	no BIOS to start the controller. The FW starts to boot after receiving
451	the first command from the driver. The current driver has 1 second
452	timeout for the synchronous commands, which is far less than what is
453	actually required. We now wait up to MBOX_RESET_TIME (180 seconds) for
454	FW boot process.
455
456iv.	In megaraid_mbox_product_info, clear the mailbox contents completely
457	before preparing the command for inquiry3. This is to ensure that the
458	FW does not get junk values in the command.
459
460v.	Do away with the redundant LSI_CONFIG_COMPAT redefinition for
461	CONFIG_COMPAT. Replace <asm/ioctl32.h> with <linux/ioctl32.h>
462
463		- James Bottomley <James.Bottomley@SteelEye.com>, 08.17.2004
464		 linux-scsi mailing list
465
466vi.	Add support for 64-bit applications. Current drivers assume only
467	32-bit applications, even on 64-bit platforms. Use the "data" and
468	"buffer" fields of the mimd_t structure, instead of embedded 32-bit
469	addresses in application mailbox and passthru structures.
470
471vii.	Move the function declarations for the management module from
472	megaraid_mm.h to megaraid_mm.c
473
474		- Andrew Morton, 08.19.2004
475		linux-scsi mailing list
476
477viii.	Change default values for MEGARAID_NEWGEN, MEGARAID_MM, and
478	MEGARAID_MAILBOX to 'n' in Kconfig.megaraid
479
480		- Andrew Morton, 08.19.2004
481		linux-scsi mailing list
482
483ix.	replace udelay with msleep
484
485x.	Typos corrected in comments and whitespace adjustments, explicit
486	grouping of expressions.
487
488
489Release Date	: Fri Jul 23 15:22:07 EDT 2004 - Atul Mukker <atulm@lsil.com>
490Current Version	: 2.20.2.0 (scsi module), 2.20.1.0 (cmm module)
491Older Version	: 2.20.1.0 (scsi module), 2.20.0.0 (cmm module)
492
493i.	Add PCI ids for Acer ROMB 2E solution
494
495ii.	Add PCI ids for I4
496
497iii.	Typo corrected for subsys id for megaraid sata 300-4x
498
499iv.	Remove yield() while mailbox handshake in synchronous commands
500
501
502	"My other main gripe is things like this:
503
504	+	// wait for maximum 1 second for status to post
505	+	for (i = 0; i < 40000; i++) {
506	+		if (mbox->numstatus != 0xFF) break;
507	+		udelay(25); yield();
508	+	}
509
510	which litter the driver.  Use of yield() in drivers is deprecated."
511
512		- James Bottomley <James.Bottomley@SteelEye.com>, 07.14.2004
513		 linux-scsi mailing list
514
515v.	Remove redundant __megaraid_busywait_mbox routine
516
517vi.	Fix bug in the management module, which causes a system lockup when the
518	IO module is loaded and then unloaded, followed by executing any
519	management utility. The current version of management module does not
520	handle the adapter unregister properly.
521
522	Specifically, it still keeps a reference to the unregistered
523	controllers. To avoid this, the static array adapters has been
524	replaced by a dynamic list, which gets updated every time an adapter
525	is added or removed.
526
527	Also, during unregistration of the IO module, the resources are
528	now released in the exact reverse order of the allocation time
529	sequence.
530
531
532Release Date	: Fri Jun 25 18:58:43 EDT 2004 - Atul Mukker <atulm@lsil.com>
533Current Version	: 2.20.1.0
534Older Version	: megaraid 2.20.0.1
535
536i.	Stale list pointer in adapter causes kernel panic when module
537	megaraid_mbox is unloaded
538
539
540Release Date	: Thu Jun 24 20:37:11 EDT 2004 - Atul Mukker <atulm@lsil.com>
541Current Version	: 2.20.0.1
542Older Version	: megaraid 2.20.0.00
543
544i.	Modules are not 'y' by default, but depend on current definition of
545	SCSI & PCI.
546
547ii.	Redundant structure mraid_driver_t removed.
548
549iii.	Miscellaneous indentation and goto/label fixes.
550		- Christoph Hellwig <hch@infradead.org>, 06.24.2004 linux-scsi
551
552iv.	scsi_host_put(), do just before completing HBA shutdown.
553
554
555
556Release Date	: Mon Jun 21 19:53:54 EDT 2004 - Atul Mukker <atulm@lsil.com>
557Current Version	: 2.20.0.0
558Older Version	: megaraid 2.20.0.rc2 and 2.00.3
559
560i.	Independent module to interact with userland applications and
561	multiplex command to low level RAID module(s).
562
563	"Shared code in a third module, a "library module", is an acceptable
564	solution. modprobe automatically loads dependent modules, so users
565	running "modprobe driver1" or "modprobe driver2" would automatically
566	load the shared library module."
567
568		- Jeff Garzik <jgarzik@pobox.com> 02.25.2004 LKML
569
570	"As Jeff hinted, if your userspace<->driver API is consistent between
571	your new MPT-based RAID controllers and your existing megaraid driver,
572	then perhaps you need a single small helper module (lsiioctl or some
573	better name), loaded by both mptraid and megaraid automatically, which
574	handles registering the /dev/megaraid node dynamically. In this case,
575	both mptraid and megaraid would register with lsiioctl for each
576	adapter discovered, and lsiioctl would essentially be a switch,
577	redirecting userspace tool ioctls to the appropriate driver."
578
579		- Matt Domsch <Matt_Domsch@dell.com> 02.25.2004 LKML
580
581ii.	Remove C99 initializations from pci_device id.
582
583	"pci_id_table_g would be much more readable when not using C99
584	initializers.
585	PCI table doesn't change, there's lots of users that prefer the more
586	readable variant.  And it's really far less and much easier to grok
587	lines without C99 initializers."
588
589		- Christoph Hellwig <hch@infradead.org>, 05.28.2004 linux-scsi
590
591iii.	Many fixes as suggested by Christoph Hellwig <hch@infradead.org> on
592	linux-scsi, 05.28.2004
593
594iv.	We now support up to 32 parallel ioctl commands instead of current 1.
595	There is a conscious effort to let memory allocation not fail for ioctl
596	commands.
597
598v.	Do away with internal memory management. Use pci_pool_(create|alloc)
599	instead.
600
601vi.	Kill tasklet when unloading the driver.
602
603vii.	Do not use "host_lock', driver has fine-grain locks now to protect all
604	data structures.
605
606viii.	Optimize the build scatter-gather list routine. The callers already
607	know the data transfer address and length.
608
609ix.	Better implementation of error handling and recovery. Driver now
610	performs extended errors recovery for instances like scsi cable pull.
611
612x.	Disassociate the management commands with an overlaid scsi command.
613	Driver now treats the management packets as special packets and has a
614	dedicated callback routine.
615