1Release Date : Tues. Dec 14, 2010 17:00:00 PST 2010 - 2 (emaild-id:megaraidlinux@lsi.com) 3 Adam Radford 4Current Version : 00.00.05.29-rc1 5Old Version : 00.00.04.31-rc1 6 1. Rename megaraid_sas.c to megaraid_sas_base.c. 7 2. Update GPL headers. 8 3. Add MSI-X support and 'msix_disable' module parameter. 9 4. Use lowest memory bar (for SR-IOV VF support). 10 5. Add struct megasas_instance_temlate changes, and change all code to use 11 new instance entries: 12 13 irqreturn_t (*service_isr )(int irq, void *devp); 14 void (*tasklet)(unsigned long); 15 u32 (*init_adapter)(struct megasas_instance *); 16 u32 (*build_and_issue_cmd) (struct megasas_instance *, 17 struct scsi_cmnd *); 18 void (*issue_dcmd) (struct megasas_instance *instance, 19 struct megasas_cmd *cmd); 20 21 6. Add code to support MegaRAID 9265/9285 controllers device id (0x5b). 22------------------------------------------------------------------------------- 231 Release Date : Thur. May 03, 2010 09:12:45 PST 2009 - 24 (emaild-id:megaraidlinux@lsi.com) 25 Bo Yang 26 272 Current Version : 00.00.04.31-rc1 283 Older Version : 00.00.04.17.1-rc1 29 301. Add the Online Controller Reset (OCR) to the Driver. 31 OCR is the new feature for megaraid_sas driver which 32 will allow the fw to do the chip reset which will not 33 affact the OS behavious. 34 35 To add the OCR support, driver need to do: 36 a). reset the controller chips -- Xscale and Gen2 which 37 will change the function calls and add the reset function 38 related to this two chips. 39 40 b). during the reset, driver will store the pending cmds 41 which not returned by FW to driver's pending queue. Driver 42 will re-issue those pending cmds again to FW after the OCR 43 finished. 44 45 c). In driver's timeout routine, driver will report to 46 OS as reset. Also driver's queue routine will block the 47 cmds until the OCR finished. 48 49 d). in Driver's ISR routine, if driver get the FW state as 50 state change, FW in Failure status and FW support online controller 51 reset (OCR), driver will start to do the controller reset. 52 53 e). In driver's IOCTL routine, the application cmds will wait for the 54 OCR to finish, then issue the cmds to FW. 55 56 f). Before driver kill adapter, driver will do last chance of 57 OCR to see if driver can bring back the FW. 58 592. Add the support update flag to the driver to tell LSI megaraid_sas 60 application which driver will support the device update. So application 61 will not need to do the device update after application add/del the device 62 from the system. 633. In driver's timeout routine, driver will do three time reset if fw is in 64 failed state. Driver will kill adapter if can't bring back FW after the 65 this three times reset. 664. Add the input parameter max_sectors to 1MB support to our GEN2 controller. 67 customer can use the input paramenter max_sectors to add 1MB support to GEN2 68 controller. 69 701 Release Date : Thur. Oct 29, 2009 09:12:45 PST 2009 - 71 (emaild-id:megaraidlinux@lsi.com) 72 Bo Yang 73 742 Current Version : 00.00.04.17.1-rc1 753 Older Version : 00.00.04.12 76 771. Add the pad_0 in mfi frame structure to 0 to fix the 78 context value larger than 32bit value issue. 79 802. Add the logic drive list to the driver. Driver will 81 keep the logic drive list internal after driver load. 82 833. driver fixed the device update issue after get the AEN 84 PD delete/ADD, LD add/delete from FW. 85 861 Release Date : Tues. July 28, 2009 10:12:45 PST 2009 - 87 (emaild-id:megaraidlinux@lsi.com) 88 Bo Yang 89 902 Current Version : 00.00.04.12 913 Older Version : 00.00.04.10 92 931. Change the AEN sys PD update from scsi_scan to 94 scsi_add_device and scsi_remove_device. 952. Takeoff the debug print-out in aen_polling routine. 96 971 Release Date : Thur. July 02, 2009 10:12:45 PST 2009 - 98 (emaild-id:megaraidlinux@lsi.com) 99 Bo Yang 100 1012 Current Version : 00.00.04.10 1023 Older Version : 00.00.04.08 103 1041. Add the 3 mins timeout during the controller initialize. 1052. Add the fix for 64bit sense date errors. 106 1071 Release Date : Tues. May 05, 2009 10:12:45 PST 2009 - 108 (emaild-id:megaraidlinux@lsi.com) 109 Bo Yang 110 1112 Current Version : 00.00.04.08 1123 Older Version : 00.00.04.06 113 1141. Add the fix of pending in FW after deleted the logic drives. 1152. Add the fix of deallocating memory after get pdlist. 116 1171 Release Date : Tues. March 26, 2009 10:12:45 PST 2009 - 118 (emaild-id:megaraidlinux@lsi.com) 119 Bo Yang 120 1212 Current Version : 00.00.04.06 1223 Older Version : 00.00.04.04 123 1241. Add the fix of the driver cmd empty fix of the driver cmd empty. 1252. Add the fix of the driver MSM AEN CMD cause the system slow. 126 1271 Release Date : Tues. March 03, 2009 10:12:45 PST 2009 - 128 (emaild-id:megaraidlinux@lsi.com) 129 Bo Yang 130 1312 Current Version : 00.00.04.04 1323 Older Version : 00.00.04.01 133 1341. Add the Tape drive fix to the driver: If the command is for 135 the tape device, set the pthru timeout to the os layer timeout value. 136 1372. Add Poll_wait mechanism to Gen-2 Linux driv. 138 In the aen handler, driver needs to wakeup poll handler similar to 139 the way it raises SIGIO. 140 1413. Add new controller new SAS2 support to the driver. 142 1434. Report the unconfigured PD (system PD) to OS. 144 1455. Add the IEEE SGL support to the driver 146 1476. Reasign the Application cmds to SAS2 controller 148 1491 Release Date : Thur.July. 24 11:41:51 PST 2008 - 150 (emaild-id:megaraidlinux@lsi.com) 151 Sumant Patro 152 Bo Yang 153 1542 Current Version : 00.00.04.01 1553 Older Version : 00.00.03.22 156 1571. Add the new controller (0078, 0079) support to the driver 158 Those controllers are LSI's next generatation(gen2) SAS controllers. 159 1601 Release Date : Mon.June. 23 10:12:45 PST 2008 - 161 (emaild-id:megaraidlinux@lsi.com) 162 Sumant Patro 163 Bo Yang 164 1652 Current Version : 00.00.03.22 1663 Older Version : 00.00.03.20 167 1681. Add shutdown DCMD cmd to the shutdown routine to make FW shutdown proper. 1692. Unexpected interrupt occurs in HWR Linux driver, add the dumy readl pci flush will fix this issue. 170 1711 Release Date : Mon. March 10 11:02:31 PDT 2008 - 172 (emaild-id:megaraidlinux@lsi.com) 173 Sumant Patro 174 Bo Yang 175 1762 Current Version : 00.00.03.20-RC1 1773 Older Version : 00.00.03.16 178 1791. Rollback the sense info implementation 180 Sense buffer ptr data type in the ioctl path is reverted back 181 to u32 * as in previous versions of driver. 182 1832. Fixed the driver frame count. 184 When Driver sent wrong frame count to firmware. As this 185 particular command is sent to drive, FW is seeing continuous 186 chip resets and so the command will timeout. 187 1883. Add the new controller(1078DE) support to the driver 189 and Increase the max_wait to 60 from 10 in the controller 190 operational status. With this max_wait increase, driver will 191 make sure the FW will finish the pending cmd for KDUMP case. 192 1931 Release Date : Thur. Nov. 07 16:30:43 PST 2007 - 194 (emaild-id:megaraidlinux@lsi.com) 195 Sumant Patro 196 Bo Yang 197 1982 Current Version : 00.00.03.16 1993 Older Version : 00.00.03.15 200 2011. Increased MFI_POLL_TIMEOUT_SECS to 60 seconds from 10. FW may take 202 a max of 60 seconds to respond to the INIT cmd. 203 2041 Release Date : Fri. Sep. 07 16:30:43 PST 2007 - 205 (emaild-id:megaraidlinux@lsi.com) 206 Sumant Patro 207 Bo Yang 208 2092 Current Version : 00.00.03.15 2103 Older Version : 00.00.03.14 211 2121. Added module parameter "poll_mode_io" to support for "polling" 213 (reduced interrupt operation). In this mode, IO completion 214 interrupts are delayed. At the end of initiating IOs, the 215 driver schedules for cmd completion if there are pending cmds 216 to be completed. A timer-based interrupt has also been added 217 to prevent IO completion processing from being delayed 218 indefinitely in the case that no new IOs are initiated. 219 2201 Release Date : Fri. Sep. 07 16:30:43 PST 2007 - 221 (emaild-id:megaraidlinux@lsi.com) 222 Sumant Patro 223 Bo Yang 224 2252 Current Version : 00.00.03.14 2263 Older Version : 00.00.03.13 227 2281. Setting the max_sectors_per_req based on max SGL supported by the 229 FW. Prior versions calculated this value from controller info 230 (max_sectors_1, max_sectors_2). For certain controllers/FW, 231 this was resulting in a value greater than max SGL supported 232 by the FW. Issue was first reported by users running LUKS+XFS 233 with megaraid_sas. Thanks to RB for providing the logs and 234 duplication steps that helped to get to the root cause of the 235 issue. 2. Increased MFI_POLL_TIMEOUT_SECS to 60 seconds from 236 10. FW may take a max of 60 seconds to respond to the INIT 237 cmd. 238 2391 Release Date : Fri. June. 15 16:30:43 PST 2007 - 240 (emaild-id:megaraidlinux@lsi.com) 241 Sumant Patro 242 Bo Yang 243 2442 Current Version : 00.00.03.13 2453 Older Version : 00.00.03.12 246 2471. Added the megasas_reset_timer routine to intercept cmd timeout and throttle io. 248 249On Fri, 2007-03-16 at 16:44 -0600, James Bottomley wrote: 250It looks like megaraid_sas at least needs this to throttle its commands 251> as they begin to time out. The code keeps the existing transport 252> template use of eh_timed_out (and allows the transport to override the 253> host if they both have this callback). 254> 255> James 256 2571 Release Date : Sat May. 12 16:30:43 PST 2007 - 258 (emaild-id:megaraidlinux@lsi.com) 259 Sumant Patro 260 Bo Yang 261 2622 Current Version : 00.00.03.12 2633 Older Version : 00.00.03.11 264 2651. When MegaSAS driver receives reset call from OS, driver waits in reset 266routine for max 3 minutes for all pending command completion. Now driver will 267call completion routine every 5 seconds from the reset routine instead of 268waiting for depending on cmd completion from isr path. 269 2701 Release Date : Mon Apr. 30 10:25:52 PST 2007 - 271 (emaild-id:megaraidlinux@lsi.com) 272 Sumant Patro 273 Bo Yang 274 2752 Current Version : 00.00.03.11 2763 Older Version : 00.00.03.09 277 278 1. Memory Manager for IOCTL removed for 2.6 kernels. 279 pci_alloc_consistent replaced by dma_alloc_coherent. With this 280 change there is no need of memory manager in the driver code 281 282 On Wed, 2007-02-07 at 13:30 -0800, Andrew Morton wrote: 283 > I suspect all this horror is due to stupidity in the DMA API. 284 > 285 > pci_alloc_consistent() just goes and assumes GFP_ATOMIC, whereas 286 > the caller (megasas_mgmt_fw_ioctl) would have been perfectly happy 287 > to use GFP_KERNEL. 288 > 289 > I bet this fixes it 290 291 It does, but the DMA API was expanded to cope with this exact case, so 292 use dma_alloc_coherent() directly in the megaraid code instead. The dev 293 is just &pci_dev->dev. 294 295 James <James.Bottomley@SteelEye.com> 296 297 3. SYNCHRONIZE_CACHE is not supported by FW and thus blocked by driver. 298 4. Hibernation support added 299 5. Performing diskdump while running IO in RHEL 4 was failing. Fixed. 300 3011 Release Date : Fri Feb. 09 14:36:28 PST 2007 - 302 (emaild-id:megaraidlinux@lsi.com) 303 Sumant Patro 304 Bo Yang 305 3062 Current Version : 00.00.03.09 3073 Older Version : 00.00.03.08 308 309i. Under heavy IO mid-layer prints "DRIVER_TIMEOUT" errors 310 311 The driver now waits for 10 seconds to elapse instead of 5 (as in 312 previous release) to resume IO. 313 3141 Release Date : Mon Feb. 05 11:35:24 PST 2007 - 315 (emaild-id:megaraidlinux@lsi.com) 316 Sumant Patro 317 Bo Yang 3182 Current Version : 00.00.03.08 3193 Older Version : 00.00.03.07 320 321i. Under heavy IO mid-layer prints "DRIVER_TIMEOUT" errors 322 323 Fix: The driver is now throttling IO. 324 Checks added in megasas_queue_command to know if FW is able to 325 process commands within timeout period. If number of retries 326 is 2 or greater,the driver stops sending cmd to FW temporarily. IO is 327 resumed if pending cmd count reduces to 16 or 5 seconds has elapsed 328 from the time cmds were last sent to FW. 329 330ii. FW enables WCE bit in Mode Sense cmd for drives that are configured 331 as WriteBack. The OS may send "SYNCHRONIZE_CACHE" cmd when Logical 332 Disks are exposed with WCE=1. User is advised to enable Write Back 333 mode only when the controller has battery backup. At this time 334 Synhronize cache is not supported by the FW. Driver will short-cycle 335 the cmd and return success without sending down to FW. 336 3371 Release Date : Sun Jan. 14 11:21:32 PDT 2007 - 338 Sumant Patro <Sumant.Patro@lsil.com>/Bo Yang 3392 Current Version : 00.00.03.07 3403 Older Version : 00.00.03.06 341 342i. bios_param entry added in scsi_host_template that returns disk geometry 343 information. 344 3451 Release Date : Fri Oct 20 11:21:32 PDT 2006 - Sumant Patro <Sumant.Patro@lsil.com>/Bo Yang 3462 Current Version : 00.00.03.06 3473 Older Version : 00.00.03.05 348 3491. 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. 3502. Added check in megasas_queue_command and dpc/isr routine to see if we have already declared adapter dead 351 (hw_crit_error=1). If hw_crit_error==1, now we donot accept any processing of pending cmds/accept any cmd from OS 352 3531 Release Date : Mon Oct 02 11:21:32 PDT 2006 - Sumant Patro <Sumant.Patro@lsil.com> 3542 Current Version : 00.00.03.05 3553 Older Version : 00.00.03.04 356 357i. PCI_DEVICE macro used 358 359 Convert the pci_device_id-table of the megaraid_sas-driver to the PCI_DEVICE-macro, to safe some lines. 360 361 - Henrik Kretzschmar <henne@nachtwindheim.de> 362ii. All compiler warnings removed 363iii. megasas_ctrl_info struct reverted to 3.02 release 364iv. Default value of megasas_dbg_lvl set to 0 365v. Removing in megasas_exit the sysfs entry created for megasas_dbg_lvl 366vi. In megasas_teardown_frame_pool(), cmd->frame was passed instead of 367 cmd->sense to pci_pool_free. Fixed. Bug was pointed out by 368 Eric Sesterhenn 369 3701 Release Date : Wed Sep 13 14:22:51 PDT 2006 - Sumant Patro <Sumant.Patro@lsil.com> 3712 Current Version : 00.00.03.04 3723 Older Version : 00.00.03.03 373 374i. Added Reboot notify 375ii. Reduced by 1 max cmds sent to FW from Driver to make the reply_q_sz same 376 as Max Cmds FW can support 377 3781 Release Date : Tue Aug 22 16:33:14 PDT 2006 - Sumant Patro <Sumant.Patro@lsil.com> 3792 Current Version : 00.00.03.03 3803 Older Version : 00.00.03.02 381 382i. Send stop adapter to FW & Dump pending FW cmds before declaring adapter dead. 383 New varible added to set dbg level. 384ii. Disable interrupt made as fn pointer as they are different for 1068 / 1078 385iii. Frame count optimization. Main frame can contain 2 SGE for 64 bit SGLs and 386 3 SGE for 32 bit SGL 387iv. Tasklet added for cmd completion 388v. 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. 389vi. megasas_ctrl_prop structure updated (based on FW struct) 390vii. Added print : FW now in Ready State during initialization 391 3921 Release Date : Sun Aug 06 22:49:52 PDT 2006 - Sumant Patro <Sumant.Patro@lsil.com> 3932 Current Version : 00.00.03.02 3943 Older Version : 00.00.03.01 395 396i. Added FW tranistion state for Hotplug scenario 397 3981 Release Date : Sun May 14 22:49:52 PDT 2006 - Sumant Patro <Sumant.Patro@lsil.com> 3992 Current Version : 00.00.03.01 4003 Older Version : 00.00.02.04 401 402i. Added support for ZCR controller. 403 404 New device id 0x413 added. 405 406ii. Bug fix : Disable controller interrupt before firing INIT cmd to FW. 407 408 Interrupt is enabled after required initialization is over. 409 This is done to ensure that driver is ready to handle interrupts when 410 it is generated by the controller. 411 412 -Sumant Patro <Sumant.Patro@lsil.com> 413 4141 Release Date : Wed Feb 03 14:31:44 PST 2006 - Sumant Patro <Sumant.Patro@lsil.com> 4152 Current Version : 00.00.02.04 4163 Older Version : 00.00.02.04 417 418i. Remove superflous instance_lock 419 420 gets rid of the otherwise superflous instance_lock and avoids an unsave 421 unsynchronized access in the error handler. 422 423 - Christoph Hellwig <hch@lst.de> 424 425 4261 Release Date : Wed Feb 03 14:31:44 PST 2006 - Sumant Patro <Sumant.Patro@lsil.com> 4272 Current Version : 00.00.02.04 4283 Older Version : 00.00.02.04 429 430i. Support for 1078 type (ppc IOP) controller, device id : 0x60 added. 431 During initialization, depending on the device id, the template members 432 are initialized with function pointers specific to the ppc or 433 xscale controllers. 434 435 -Sumant Patro <Sumant.Patro@lsil.com> 436 4371 Release Date : Fri Feb 03 14:16:25 PST 2006 - Sumant Patro 438 <Sumant.Patro@lsil.com> 4392 Current Version : 00.00.02.04 4403 Older Version : 00.00.02.02 441i. Register 16 byte CDB capability with scsi midlayer 442 443 "Ths patch properly registers the 16 byte command length capability of the 444 megaraid_sas controlled hardware with the scsi midlayer. All megaraid_sas 445 hardware supports 16 byte CDB's." 446 447 -Joshua Giles <joshua_giles@dell.com> 448 4491 Release Date : Mon Jan 23 14:09:01 PST 2006 - Sumant Patro <Sumant.Patro@lsil.com> 4502 Current Version : 00.00.02.02 4513 Older Version : 00.00.02.01 452 453i. New template defined to represent each family of controllers (identified by processor used). 454 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. 455 456 -Sumant Patro <Sumant.Patro@lsil.com> 457 4581 Release Date : Mon Dec 19 14:36:26 PST 2005 - Sumant Patro <Sumant.Patro@lsil.com> 4592 Current Version : 00.00.02.00-rc4 4603 Older Version : 00.00.02.01 461 462i. Code reorganized to remove code duplication in megasas_build_cmd. 463 464 "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" 465 466 - Christoph Hellwig <hch@lst.de> 467 468ii. Defined MEGASAS_IOC_FIRMWARE32 for code paths that handles 32 bit applications in 64 bit systems. 469 470 "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" 471 472 - Christoph Hellwig <hch@lst.de> 473