Commit | Line | Data |
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fbf60802 JS |
1 | Release Date : Fri May 19 09:31:45 EST 2006 - Seokmann Ju <sju@lsil.com> |
2 | Current Version : 2.20.4.9 (scsi module), 2.20.2.6 (cmm module) | |
3 | Older Version : 2.20.4.8 (scsi module), 2.20.2.6 (cmm module) | |
4 | ||
5 | 1. Fixed a bug in megaraid_init_mbox(). | |
6 | Customer reported "garbage in file on x86_64 platform". | |
7 | Root Cause: the driver registered controllers as 64-bit DMA capable | |
8 | for those which are not support it. | |
9 | Fix: Made change in the function inserting identification machanism | |
10 | identifying 64-bit DMA capable controllers. | |
11 | ||
12 | > -----Original Message----- | |
13 | > From: Vasily Averin [mailto:vvs@sw.ru] | |
14 | > Sent: Thursday, May 04, 2006 2:49 PM | |
15 | > To: linux-scsi@vger.kernel.org; Kolli, Neela; Mukker, Atul; | |
16 | > Ju, Seokmann; Bagalkote, Sreenivas; | |
17 | > James.Bottomley@SteelEye.com; devel@openvz.org | |
18 | > Subject: megaraid_mbox: garbage in file | |
19 | > | |
20 | > Hello all, | |
21 | > | |
22 | > I've investigated customers claim on the unstable work of | |
23 | > their node and found a | |
24 | > strange effect: reading from some files leads to the | |
25 | > "attempt to access beyond end of device" messages. | |
26 | > | |
27 | > I've checked filesystem, memory on the node, motherboard BIOS | |
28 | > version, but it | |
29 | > does not help and issue still has been reproduced by simple | |
30 | > file reading. | |
31 | > | |
32 | > Reproducer is simple: | |
33 | > | |
34 | > echo 0xffffffff >/proc/sys/dev/scsi/logging_level ; | |
35 | > cat /vz/private/101/root/etc/ld.so.cache >/tmp/ttt ; | |
36 | > echo 0 >/proc/sys/dev/scsi/logging | |
37 | > | |
38 | > It leads to the following messages in dmesg | |
39 | > | |
40 | > sd_init_command: disk=sda, block=871769260, count=26 | |
41 | > sda : block=871769260 | |
42 | > sda : reading 26/26 512 byte blocks. | |
43 | > scsi_add_timer: scmd: f79ed980, time: 7500, (c02b1420) | |
44 | > sd 0:1:0:0: send 0xf79ed980 sd 0:1:0:0: | |
45 | > command: Read (10): 28 00 33 f6 24 ac 00 00 1a 00 | |
46 | > buffer = 0xf7cfb540, bufflen = 13312, done = 0xc0366b40, | |
47 | > queuecommand 0xc0344010 | |
48 | > leaving scsi_dispatch_cmnd() | |
49 | > scsi_delete_timer: scmd: f79ed980, rtn: 1 | |
50 | > sd 0:1:0:0: done 0xf79ed980 SUCCESS 0 sd 0:1:0:0: | |
51 | > command: Read (10): 28 00 33 f6 24 ac 00 00 1a 00 | |
52 | > scsi host busy 1 failed 0 | |
53 | > sd 0:1:0:0: Notifying upper driver of completion (result 0) | |
54 | > sd_rw_intr: sda: res=0x0 | |
55 | > 26 sectors total, 13312 bytes done. | |
56 | > use_sg is 4 | |
57 | > attempt to access beyond end of device | |
58 | > sda6: rw=0, want=1044134458, limit=951401367 | |
59 | > Buffer I/O error on device sda6, logical block 522067228 | |
60 | > attempt to access beyond end of device | |
61 | ||
c005fb4f JS |
62 | Release Date : Mon Apr 11 12:27:22 EST 2006 - Seokmann Ju <sju@lsil.com> |
63 | Current Version : 2.20.4.8 (scsi module), 2.20.2.6 (cmm module) | |
64 | Older Version : 2.20.4.7 (scsi module), 2.20.2.6 (cmm module) | |
65 | ||
66 | 1. Fixed a bug in megaraid_reset_handler(). | |
67 | Customer reported "Unable to handle kernel NULL pointer dereference | |
68 | at virtual address 00000000" when system goes to reset condition | |
69 | for some reason. It happened randomly. | |
70 | Root Cause: in the megaraid_reset_handler(), there is possibility not | |
71 | returning pending packets in the pend_list if there are multiple | |
72 | pending packets. | |
73 | Fix: Made the change in the driver so that it will return all packets | |
74 | in the pend_list. | |
75 | ||
76 | 2. Added change request. | |
77 | As found in the following URL, rmb() only didn't help the | |
78 | problem. I had to increase the loop counter to 0xFFFFFF. (6 F's) | |
79 | http://marc.theaimsgroup.com/?l=linux-scsi&m=110971060502497&w=2 | |
80 | ||
81 | I attached a patch for your reference, too. | |
82 | Could you check and get this fix in your driver? | |
83 | ||
84 | Best Regards, | |
85 | Jun'ichi Nomura | |
86 | ||
ed7e8ef7 JS |
87 | Release Date : Fri Nov 11 12:27:22 EST 2005 - Seokmann Ju <sju@lsil.com> |
88 | Current Version : 2.20.4.7 (scsi module), 2.20.2.6 (cmm module) | |
89 | Older Version : 2.20.4.6 (scsi module), 2.20.2.6 (cmm module) | |
90 | ||
91 | 1. Sorted out PCI IDs to remove megaraid support overlaps. | |
92 | Based on the patch from Daniel, sorted out PCI IDs along with | |
93 | charactor node name change from 'megadev' to 'megadev_legacy' to avoid | |
94 | conflict. | |
95 | --- | |
96 | Hopefully we'll be getting the build restriction zapped much sooner, | |
97 | but we should also be thinking about totally removing the hardware | |
98 | support overlap in the megaraid drivers. | |
99 | ||
100 | This patch pencils in a date of Feb 06 for this, and performs some | |
101 | printk abuse in hope that existing legacy users might pick up on what's | |
102 | going on. | |
103 | ||
104 | Signed-off-by: Daniel Drake <dsd@gentoo.org> | |
105 | --- | |
106 | ||
107 | 2. Fixed a issue: megaraid always fails to reset handler. | |
108 | --- | |
109 | I found that the megaraid driver always fails to reset the | |
110 | adapter with the following message: | |
111 | megaraid: resetting the host... | |
112 | megaraid mbox: reset sequence completed successfully | |
113 | megaraid: fast sync command timed out | |
114 | megaraid: reservation reset failed | |
115 | when the "Cluster mode" of the adapter BIOS is enabled. | |
116 | So, whenever the reset occurs, the adapter goes to | |
117 | offline and just become unavailable. | |
118 | ||
119 | Jun'ichi Nomura [mailto:jnomura@mtc.biglobe.ne.jp] | |
120 | --- | |
121 | ||
672b2d38 JS |
122 | Release Date : Mon Mar 07 12:27:22 EST 2005 - Seokmann Ju <sju@lsil.com> |
123 | Current Version : 2.20.4.6 (scsi module), 2.20.2.6 (cmm module) | |
124 | Older Version : 2.20.4.5 (scsi module), 2.20.2.5 (cmm module) | |
125 | ||
126 | 1. Added IOCTL backward compatibility. | |
127 | Convert megaraid_mm driver to new compat_ioctl entry points. | |
128 | I don't have easy access to hardware, so only compile tested. | |
129 | - Signed-off-by:Andi Kleen <ak@muc.de> | |
130 | ||
131 | 2. megaraid_mbox fix: wrong order of arguments in memset() | |
132 | That, BTW, shows why cross-builds are useful-the only indication of | |
133 | problem had been a new warning showing up in sparse output on alpha | |
134 | build (number of exceeding 256 got truncated). | |
135 | - Signed-off-by: Al Viro | |
136 | <viro@parcelfarce.linux.theplanet.co.uk> | |
137 | ||
138 | 3. Convert pci_module_init to pci_register_driver | |
139 | Convert from pci_module_init to pci_register_driver | |
140 | (from:http://kerneljanitors.org/TODO) | |
141 | - Signed-off-by: Domen Puncer <domen@coderock.org> | |
142 | ||
143 | 4. Use the pre defined DMA mask constants from dma-mapping.h | |
144 | Use the DMA_{64,32}BIT_MASK constants from dma-mapping.h when calling | |
145 | pci_set_dma_mask() or pci_set_consistend_dma_mask(). See | |
146 | http://marc.theaimsgroup.com/?t=108001993000001&r=1&w=2 for more | |
147 | details. | |
148 | Signed-off-by: Tobias Klauser <tklauser@nuerscht.ch> | |
149 | Signed-off-by: Domen Puncer <domen@coderock.org> | |
150 | ||
151 | 5. Remove SSID checking for Dobson, Lindsay, and Verde based products. | |
152 | Checking the SSVID/SSID for controllers which have Dobson, Lindsay, | |
153 | and Verde is unnecessary because device ID has been assigned by LSI | |
154 | and it is unique value. So, all controllers with these IOPs have to be | |
155 | supported by the driver regardless SSVID/SSID. | |
156 | ||
157 | 6. Date Thu, 27 Jan 2005 04:31:09 +0100 | |
158 | From Herbert Poetzl <> | |
159 | Subject RFC: assert_spin_locked() for 2.6 | |
160 | ||
161 | Greetings! | |
162 | ||
163 | overcautious programming will kill your kernel ;) | |
164 | ever thought about checking a spin_lock or even | |
165 | asserting that it must be held (maybe just for | |
166 | spinlock debugging?) ... | |
167 | ||
168 | there are several checks present in the kernel | |
169 | where somebody does a variation on the following: | |
170 | ||
171 | BUG_ON(!spin_is_locked(&some_lock)); | |
172 | ||
173 | so what's wrong about that? nothing, unless you | |
174 | compile the code with CONFIG_DEBUG_SPINLOCK but | |
175 | without CONFIG_SMP ... in which case the BUG() | |
176 | will kill your kernel ... | |
177 | ||
178 | maybe it's not advised to make such assertions, | |
179 | but here is a solution which works for me ... | |
180 | (compile tested for sh, x86_64 and x86, boot/run | |
181 | tested for x86 only) | |
182 | ||
183 | best, | |
184 | Herbert | |
185 | ||
186 | - Herbert Poetzl <herbert@13thfloor.at>, Thu, 27 Jan 2005 | |
187 | ||
1da177e4 LT |
188 | Release Date : Thu Feb 03 12:27:22 EST 2005 - Seokmann Ju <sju@lsil.com> |
189 | Current Version : 2.20.4.5 (scsi module), 2.20.2.5 (cmm module) | |
190 | Older Version : 2.20.4.4 (scsi module), 2.20.2.4 (cmm module) | |
191 | ||
192 | 1. Modified name of two attributes in scsi_host_template. | |
193 | On Wed, 2005-02-02 at 10:56 -0500, Ju, Seokmann wrote: | |
194 | > + .sdev_attrs = megaraid_device_attrs, | |
195 | > + .shost_attrs = megaraid_class_device_attrs, | |
196 | ||
197 | These are, perhaps, slightly confusing names. | |
198 | The terms device and class_device have well defined meanings in the | |
199 | generic device model, neither of which is what you mean here. | |
200 | Why not simply megaraid_sdev_attrs and megaraid_shost_attrs? | |
201 | ||
202 | Other than this, it looks fine to me too. | |
203 | ||
204 | Release Date : Thu Jan 27 00:01:03 EST 2005 - Atul Mukker <atulm@lsil.com> | |
205 | Current Version : 2.20.4.4 (scsi module), 2.20.2.5 (cmm module) | |
206 | Older Version : 2.20.4.3 (scsi module), 2.20.2.4 (cmm module) | |
207 | ||
208 | 1. Bump up the version of scsi module due to its conflict. | |
209 | ||
210 | Release Date : Thu Jan 21 00:01:03 EST 2005 - Atul Mukker <atulm@lsil.com> | |
211 | Current Version : 2.20.4.3 (scsi module), 2.20.2.5 (cmm module) | |
212 | Older Version : 2.20.4.2 (scsi module), 2.20.2.4 (cmm module) | |
213 | ||
214 | 1. Remove driver ioctl for logical drive to scsi address translation and | |
215 | replace with the sysfs attribute. To remove drives and change | |
216 | capacity, application shall now use the device attribute to get the | |
217 | logical drive number for a scsi device. For adding newly created | |
218 | logical drives, class device attribute would be required to uniquely | |
219 | identify each controller. | |
220 | - Atul Mukker <atulm@lsil.com> | |
221 | ||
222 | "James, I've been thinking about this a little more, and you may be on | |
223 | to something here. Let each driver add files as such:" | |
224 | ||
225 | - Matt Domsch <Matt_Domsch@dell.com>, 12.15.2004 | |
226 | linux-scsi mailing list | |
227 | ||
228 | ||
229 | "Then, if you simply publish your LD number as an extra parameter of | |
230 | the device, you can look through /sys to find it." | |
231 | ||
232 | - James Bottomley <James.Bottomley@SteelEye.com>, 01.03.2005 | |
233 | linux-scsi mailing list | |
234 | ||
235 | ||
236 | "I don't see why not ... it's your driver, you can publish whatever | |
237 | extra information you need as scsi_device attributes; that was one of | |
238 | the designs of the extensible attribute system." | |
239 | ||
240 | - James Bottomley <James.Bottomley@SteelEye.com>, 01.06.2005 | |
241 | linux-scsi mailing list | |
242 | ||
243 | 2. Add AMI megaraid support - Brian King <brking@charter.net> | |
244 | PCI_VENDOR_ID_AMI, PCI_DEVICE_ID_AMI_MEGARAID3, | |
245 | PCI_VENDOR_ID_AMI, PCI_SUBSYS_ID_PERC3_DC, | |
246 | ||
247 | 3. Make some code static - Adrian Bunk <bunk@stusta.de> | |
248 | Date: Mon, 15 Nov 2004 03:14:57 +0100 | |
249 | ||
250 | The patch below makes some needlessly global code static. | |
251 | -wait_queue_head_t wait_q; | |
252 | +static wait_queue_head_t wait_q; | |
253 | ||
254 | Signed-off-by: Adrian Bunk <bunk@stusta.de> | |
255 | ||
256 | 4. Added NEC ROMB support - NEC MegaRAID PCI Express ROMB controller | |
257 | PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_MEGARAID_NEC_ROMB_2E, | |
258 | PCI_SUBSYS_ID_NEC, PCI_SUBSYS_ID_MEGARAID_NEC_ROMB_2E, | |
259 | ||
260 | 5. Fixed Tape drive issue : For any Direct CDB command to physical device | |
261 | including tape, timeout value set by driver was 10 minutes. With this | |
262 | value, most of command will return within timeout. However, for those | |
263 | command like ERASE or FORMAT, it takes more than an hour depends on | |
264 | capacity of the device and the command could be terminated before it | |
265 | completes. | |
266 | To address this issue, the 'timeout' field in the DCDB command will | |
267 | have NO TIMEOUT (i.e., 4) value as its timeout on DCDB command. | |
268 | ||
269 | ||
270 | ||
271 | Release Date : Thu Dec 9 19:10:23 EST 2004 | |
272 | - Sreenivas Bagalkote <sreenib@lsil.com> | |
273 | ||
274 | Current Version : 2.20.4.2 (scsi module), 2.20.2.4 (cmm module) | |
275 | Older Version : 2.20.4.1 (scsi module), 2.20.2.3 (cmm module) | |
276 | ||
277 | i. Introduced driver ioctl that returns scsi address for a given ld. | |
278 | ||
279 | "Why can't the existing sysfs interfaces be used to do this?" | |
280 | - Brian King (brking@us.ibm.com) | |
281 | ||
282 | "I've looked into solving this another way, but I cannot see how | |
283 | to get this driver-private mapping of logical drive number-> HCTL | |
284 | without putting code something like this into the driver." | |
285 | ||
286 | "...and by providing a mapping a function to userspace, the driver | |
287 | is free to change its mapping algorithm in the future if necessary .." | |
288 | - Matt Domsch (Matt_Domsch@dell.com) | |
289 | ||
290 | Release Date : Thu Dec 9 19:02:14 EST 2004 - Sreenivas Bagalkote <sreenib@lsil.com> | |
291 | ||
292 | Current Version : 2.20.4.1 (scsi module), 2.20.2.3 (cmm module) | |
293 | Older Version : 2.20.4.1 (scsi module), 2.20.2.2 (cmm module) | |
294 | ||
295 | i. Fix a bug in kioc's dma buffer deallocation | |
296 | ||
297 | Release Date : Thu Nov 4 18:24:56 EST 2004 - Sreenivas Bagalkote <sreenib@lsil.com> | |
298 | ||
299 | Current Version : 2.20.4.1 (scsi module), 2.20.2.2 (cmm module) | |
300 | Older Version : 2.20.4.0 (scsi module), 2.20.2.1 (cmm module) | |
301 | ||
302 | i. Handle IOCTL cmd timeouts more properly. | |
303 | ||
304 | ii. pci_dma_sync_{sg,single}_for_cpu was introduced into megaraid_mbox | |
305 | incorrectly (instead of _for_device). Changed to appropriate | |
306 | pci_dma_sync_{sg,single}_for_device. | |
307 | ||
308 | Release Date : Wed Oct 06 11:15:29 EDT 2004 - Sreenivas Bagalkote <sreenib@lsil.com> | |
309 | Current Version : 2.20.4.0 (scsi module), 2.20.2.1 (cmm module) | |
310 | Older Version : 2.20.4.0 (scsi module), 2.20.2.0 (cmm module) | |
311 | ||
312 | i. Remove CONFIG_COMPAT around register_ioctl32_conversion | |
313 | ||
314 | Release Date : Mon Sep 27 22:15:07 EDT 2004 - Atul Mukker <atulm@lsil.com> | |
315 | Current Version : 2.20.4.0 (scsi module), 2.20.2.0 (cmm module) | |
316 | Older Version : 2.20.3.1 (scsi module), 2.20.2.0 (cmm module) | |
317 | ||
318 | i. Fix data corruption. Because of a typo in the driver, the IO packets | |
319 | were wrongly shared by the ioctl path. This causes a whole IO command | |
320 | to be replaced by an incoming ioctl command. | |
321 | ||
322 | Release Date : Tue Aug 24 09:43:35 EDT 2004 - Atul Mukker <atulm@lsil.com> | |
323 | Current Version : 2.20.3.1 (scsi module), 2.20.2.0 (cmm module) | |
324 | Older Version : 2.20.3.0 (scsi module), 2.20.2.0 (cmm module) | |
325 | ||
326 | i. Function reordering so that inline functions are defined before they | |
327 | are actually used. It is now mandatory for GCC 3.4.1 (current stable) | |
328 | ||
329 | Declare some heavy-weight functions to be non-inlined, | |
330 | megaraid_mbox_build_cmd, megaraid_mbox_runpendq, | |
331 | megaraid_mbox_prepare_pthru, megaraid_mbox_prepare_epthru, | |
332 | megaraid_busywait_mbox | |
333 | ||
334 | - Andrew Morton <akpm@osdl.org>, 08.19.2004 | |
335 | linux-scsi mailing list | |
336 | ||
337 | "Something else to clean up after inclusion: every instance of an | |
338 | inline function is actually rendered as a full function call, because | |
339 | the function is always used before it is defined. Atul, please | |
340 | re-arrange the code to eliminate the need for most (all) of the | |
341 | function prototypes at the top of each file, and define (not just | |
342 | declare with a prototype) each inline function before its first use" | |
343 | ||
344 | - Matt Domsch <Matt_Domsch@dell.com>, 07.27.2004 | |
345 | linux-scsi mailing list | |
346 | ||
347 | ||
348 | ii. Display elapsed time (countdown) while waiting for FW to boot. | |
349 | ||
350 | iii. Module compilation reorder in Makefile so that unresolved symbols do | |
351 | not occur when driver is compiled non-modular. | |
352 | ||
353 | Patrick J. LoPresti <patl@users.sourceforge.net>, 8.22.2004 | |
354 | linux-scsi mailing list | |
355 | ||
356 | ||
357 | Release Date : Thu Aug 19 09:58:33 EDT 2004 - Atul Mukker <atulm@lsil.com> | |
358 | Current Version : 2.20.3.0 (scsi module), 2.20.2.0 (cmm module) | |
359 | Older Version : 2.20.2.0 (scsi module), 2.20.1.0 (cmm module) | |
360 | ||
361 | i. When copying the mailbox packets, copy only first 14 bytes (for 32-bit | |
362 | mailboxes) and only first 22 bytes (for 64-bit mailboxes). This is to | |
363 | avoid getting the stale values for busy bit. We want to set the busy | |
364 | bit just before issuing command to the FW. | |
365 | ||
366 | ii. In the reset handling, if the reseted command is not owned by the | |
367 | driver, do not (wrongly) print information for the "attached" driver | |
368 | packet. | |
369 | ||
370 | iii. Have extended wait when issuing command in synchronous mode. This is | |
371 | required for the cases where the option ROM is disabled and there is | |
372 | no BIOS to start the controller. The FW starts to boot after receiving | |
373 | the first command from the driver. The current driver has 1 second | |
374 | timeout for the synchronous commands, which is far less than what is | |
375 | actually required. We now wait up to MBOX_RESET_TIME (180 seconds) for | |
376 | FW boot process. | |
377 | ||
378 | iv. In megaraid_mbox_product_info, clear the mailbox contents completely | |
379 | before preparing the command for inquiry3. This is to ensure that the | |
380 | FW does not get junk values in the command. | |
381 | ||
382 | v. Do away with the redundant LSI_CONFIG_COMPAT redefinition for | |
383 | CONFIG_COMPAT. Replace <asm/ioctl32.h> with <linux/ioctl32.h> | |
384 | ||
385 | - James Bottomley <James.Bottomley@SteelEye.com>, 08.17.2004 | |
386 | linux-scsi mailing list | |
387 | ||
388 | vi. Add support for 64-bit applications. Current drivers assume only | |
389 | 32-bit applications, even on 64-bit platforms. Use the "data" and | |
390 | "buffer" fields of the mimd_t structure, instead of embedded 32-bit | |
391 | addresses in application mailbox and passthru structures. | |
392 | ||
393 | vii. Move the function declarations for the management module from | |
394 | megaraid_mm.h to megaraid_mm.c | |
395 | ||
396 | - Andrew Morton <akpm@osdl.org>, 08.19.2004 | |
397 | linux-scsi mailing list | |
398 | ||
399 | viii. Change default values for MEGARAID_NEWGEN, MEGARAID_MM, and | |
400 | MEGARAID_MAILBOX to 'n' in Kconfig.megaraid | |
401 | ||
402 | - Andrew Morton <akpm@osdl.org>, 08.19.2004 | |
403 | linux-scsi mailing list | |
404 | ||
405 | ix. replace udelay with msleep | |
406 | ||
407 | x. Typos corrected in comments and whitespace adjustments, explicit | |
408 | grouping of expressions. | |
409 | ||
410 | ||
411 | Release Date : Fri Jul 23 15:22:07 EDT 2004 - Atul Mukker <atulm@lsil.com> | |
412 | Current Version : 2.20.2.0 (scsi module), 2.20.1.0 (cmm module) | |
413 | Older Version : 2.20.1.0 (scsi module), 2.20.0.0 (cmm module) | |
414 | ||
415 | i. Add PCI ids for Acer ROMB 2E solution | |
416 | ||
417 | ii. Add PCI ids for I4 | |
418 | ||
419 | iii. Typo corrected for subsys id for megaraid sata 300-4x | |
420 | ||
421 | iv. Remove yield() while mailbox handshake in synchronous commands | |
422 | ||
423 | ||
424 | "My other main gripe is things like this: | |
425 | ||
426 | + // wait for maximum 1 second for status to post | |
427 | + for (i = 0; i < 40000; i++) { | |
428 | + if (mbox->numstatus != 0xFF) break; | |
429 | + udelay(25); yield(); | |
430 | + } | |
431 | ||
432 | which litter the driver. Use of yield() in drivers is deprecated." | |
433 | ||
434 | - James Bottomley <James.Bottomley@SteelEye.com>, 07.14.2004 | |
435 | linux-scsi mailing list | |
436 | ||
437 | v. Remove redundant __megaraid_busywait_mbox routine | |
438 | ||
439 | vi. Fix bug in the managment module, which causes a system lockup when the | |
440 | IO module is loaded and then unloaded, followed by executing any | |
441 | management utility. The current version of management module does not | |
442 | handle the adapter unregister properly. | |
443 | ||
444 | Specifically, it still keeps a reference to the unregistered | |
445 | controllers. To avoid this, the static array adapters has been | |
446 | replaced by a dynamic list, which gets updated every time an adapter | |
447 | is added or removed. | |
448 | ||
449 | Also, during unregistration of the IO module, the resources are | |
450 | now released in the exact reverse order of the allocation time | |
451 | sequence. | |
452 | ||
453 | ||
454 | Release Date : Fri Jun 25 18:58:43 EDT 2004 - Atul Mukker <atulm@lsil.com> | |
455 | Current Version : 2.20.1.0 | |
456 | Older Version : megaraid 2.20.0.1 | |
457 | ||
458 | i. Stale list pointer in adapter causes kernel panic when module | |
459 | megaraid_mbox is unloaded | |
460 | ||
461 | ||
462 | Release Date : Thu Jun 24 20:37:11 EDT 2004 - Atul Mukker <atulm@lsil.com> | |
463 | Current Version : 2.20.0.1 | |
464 | Older Version : megaraid 2.20.0.00 | |
465 | ||
466 | i. Modules are not 'y' by default, but depend on current definition of | |
467 | SCSI & PCI. | |
468 | ||
469 | ii. Redundant structure mraid_driver_t removed. | |
470 | ||
471 | iii. Miscellaneous indentation and goto/label fixes. | |
472 | - Christoph Hellwig <hch@infradead.org>, 06.24.2004 linux-scsi | |
473 | ||
474 | iv. scsi_host_put(), do just before completing HBA shutdown. | |
475 | ||
476 | ||
477 | ||
478 | Release Date : Mon Jun 21 19:53:54 EDT 2004 - Atul Mukker <atulm@lsil.com> | |
479 | Current Version : 2.20.0.0 | |
480 | Older Version : megaraid 2.20.0.rc2 and 2.00.3 | |
481 | ||
482 | i. Independent module to interact with userland applications and | |
483 | multiplex command to low level RAID module(s). | |
484 | ||
485 | "Shared code in a third module, a "library module", is an acceptable | |
486 | solution. modprobe automatically loads dependent modules, so users | |
487 | running "modprobe driver1" or "modprobe driver2" would automatically | |
488 | load the shared library module." | |
489 | ||
490 | - Jeff Garzik <jgarzik@pobox.com> 02.25.2004 LKML | |
491 | ||
492 | "As Jeff hinted, if your userspace<->driver API is consistent between | |
493 | your new MPT-based RAID controllers and your existing megaraid driver, | |
494 | then perhaps you need a single small helper module (lsiioctl or some | |
495 | better name), loaded by both mptraid and megaraid automatically, which | |
496 | handles registering the /dev/megaraid node dynamically. In this case, | |
497 | both mptraid and megaraid would register with lsiioctl for each | |
498 | adapter discovered, and lsiioctl would essentially be a switch, | |
499 | redirecting userspace tool ioctls to the appropriate driver." | |
500 | ||
501 | - Matt Domsch <Matt_Domsch@dell.com> 02.25.2004 LKML | |
502 | ||
503 | ii. Remove C99 initializations from pci_device id. | |
504 | ||
505 | "pci_id_table_g would be much more readable when not using C99 | |
506 | initializers. | |
507 | PCI table doesn't change, there's lots of users that prefer the more | |
508 | readable variant. And it's really far less and much easier to grok | |
509 | lines without C99 initializers." | |
510 | ||
511 | - Christoph Hellwig <hch@infradead.org>, 05.28.2004 linux-scsi | |
512 | ||
513 | iii. Many fixes as suggested by Christoph Hellwig <hch@infradead.org> on | |
514 | linux-scsi, 05.28.2004 | |
515 | ||
516 | iv. We now support up to 32 parallel ioctl commands instead of current 1. | |
517 | There is a conscious effort to let memory allocation not fail for ioctl | |
518 | commands. | |
519 | ||
520 | v. Do away with internal memory management. Use pci_pool_(create|alloc) | |
521 | instead. | |
522 | ||
523 | vi. Kill tasklet when unloading the driver. | |
524 | ||
525 | vii. Do not use "host_lock', driver has fine-grain locks now to protect all | |
526 | data structures. | |
527 | ||
528 | viii. Optimize the build scatter-gather list routine. The callers already | |
529 | know the data transfer address and length. | |
530 | ||
531 | ix. Better implementation of error handling and recovery. Driver now | |
532 | performs extended errors recovery for instances like scsi cable pull. | |
533 | ||
534 | x. Disassociate the management commands with an overlaid scsi command. | |
535 | Driver now treats the management packets as special packets and has a | |
536 | dedicated callback routine. |