11 Release Date : Mon. March 10 11:02:31 PDT 2008 - 2 (emaild-id:megaraidlinux@lsi.com) 3 Sumant Patro 4 Bo Yang 5 62 Current Version : 00.00.03.20-RC1 73 Older Version : 00.00.03.16 8 91. Rollback the sense info implementation 10 Sense buffer ptr data type in the ioctl path is reverted back 11 to u32 * as in previous versions of driver. 12 132. Fixed the driver frame count. 14 When Driver sent wrong frame count to firmware. As this 15 particular command is sent to drive, FW is seeing continuous 16 chip resets and so the command will timeout. 17 183. Add the new controller(1078DE) support to the driver 19 and Increase the max_wait to 60 from 10 in the controller 20 operational status. With this max_wait increase, driver will 21 make sure the FW will finish the pending cmd for KDUMP case. 22 231 Release Date : Thur. Nov. 07 16:30:43 PST 2007 - 24 (emaild-id:megaraidlinux@lsi.com) 25 Sumant Patro 26 Bo Yang 27 282 Current Version : 00.00.03.16 293 Older Version : 00.00.03.15 30 311. Increased MFI_POLL_TIMEOUT_SECS to 60 seconds from 10. FW may take 32 a max of 60 seconds to respond to the INIT cmd. 33 341 Release Date : Fri. Sep. 07 16:30:43 PST 2007 - 35 (emaild-id:megaraidlinux@lsi.com) 36 Sumant Patro 37 Bo Yang 38 392 Current Version : 00.00.03.15 403 Older Version : 00.00.03.14 41 421. Added module parameter "poll_mode_io" to support for "polling" 43 (reduced interrupt operation). In this mode, IO completion 44 interrupts are delayed. At the end of initiating IOs, the 45 driver schedules for cmd completion if there are pending cmds 46 to be completed. A timer-based interrupt has also been added 47 to prevent IO completion processing from being delayed 48 indefinitely in the case that no new IOs are initiated. 49 501 Release Date : Fri. Sep. 07 16:30:43 PST 2007 - 51 (emaild-id:megaraidlinux@lsi.com) 52 Sumant Patro 53 Bo Yang 54 552 Current Version : 00.00.03.14 563 Older Version : 00.00.03.13 57 581. Setting the max_sectors_per_req based on max SGL supported by the 59 FW. Prior versions calculated this value from controller info 60 (max_sectors_1, max_sectors_2). For certain controllers/FW, 61 this was resulting in a value greater than max SGL supported 62 by the FW. Issue was first reported by users running LUKS+XFS 63 with megaraid_sas. Thanks to RB for providing the logs and 64 duplication steps that helped to get to the root cause of the 65 issue. 2. Increased MFI_POLL_TIMEOUT_SECS to 60 seconds from 66 10. FW may take a max of 60 seconds to respond to the INIT 67 cmd. 68 691 Release Date : Fri. June. 15 16:30:43 PST 2007 - 70 (emaild-id:megaraidlinux@lsi.com) 71 Sumant Patro 72 Bo Yang 73 742 Current Version : 00.00.03.13 753 Older Version : 00.00.03.12 76 771. Added the megasas_reset_timer routine to intercept cmd timeout and throttle io. 78 79On Fri, 2007-03-16 at 16:44 -0600, James Bottomley wrote: 80It looks like megaraid_sas at least needs this to throttle its commands 81> as they begin to time out. The code keeps the existing transport 82> template use of eh_timed_out (and allows the transport to override the 83> host if they both have this callback). 84> 85> James 86 871 Release Date : Sat May. 12 16:30:43 PST 2007 - 88 (emaild-id:megaraidlinux@lsi.com) 89 Sumant Patro 90 Bo Yang 91 922 Current Version : 00.00.03.12 933 Older Version : 00.00.03.11 94 951. When MegaSAS driver receives reset call from OS, driver waits in reset 96routine for max 3 minutes for all pending command completion. Now driver will 97call completion routine every 5 seconds from the reset routine instead of 98waiting for depending on cmd completion from isr path. 99 1001 Release Date : Mon Apr. 30 10:25:52 PST 2007 - 101 (emaild-id:megaraidlinux@lsi.com) 102 Sumant Patro 103 Bo Yang 104 1052 Current Version : 00.00.03.11 1063 Older Version : 00.00.03.09 107 108 1. Memory Manager for IOCTL removed for 2.6 kernels. 109 pci_alloc_consistent replaced by dma_alloc_coherent. With this 110 change there is no need of memory manager in the driver code 111 112 On Wed, 2007-02-07 at 13:30 -0800, Andrew Morton wrote: 113 > I suspect all this horror is due to stupidity in the DMA API. 114 > 115 > pci_alloc_consistent() just goes and assumes GFP_ATOMIC, whereas 116 > the caller (megasas_mgmt_fw_ioctl) would have been perfectly happy 117 > to use GFP_KERNEL. 118 > 119 > I bet this fixes it 120 121 It does, but the DMA API was expanded to cope with this exact case, so 122 use dma_alloc_coherent() directly in the megaraid code instead. The dev 123 is just &pci_dev->dev. 124 125 James <James.Bottomley@SteelEye.com> 126 127 3. SYNCHRONIZE_CACHE is not supported by FW and thus blocked by driver. 128 4. Hibernation support added 129 5. Performing diskdump while running IO in RHEL 4 was failing. Fixed. 130 1311 Release Date : Fri Feb. 09 14:36:28 PST 2007 - 132 (emaild-id:megaraidlinux@lsi.com) 133 Sumant Patro 134 Bo Yang 135 1362 Current Version : 00.00.03.09 1373 Older Version : 00.00.03.08 138 139i. Under heavy IO mid-layer prints "DRIVER_TIMEOUT" errors 140 141 The driver now waits for 10 seconds to elapse instead of 5 (as in 142 previous release) to resume IO. 143 1441 Release Date : Mon Feb. 05 11:35:24 PST 2007 - 145 (emaild-id:megaraidlinux@lsi.com) 146 Sumant Patro 147 Bo Yang 1482 Current Version : 00.00.03.08 1493 Older Version : 00.00.03.07 150 151i. Under heavy IO mid-layer prints "DRIVER_TIMEOUT" errors 152 153 Fix: The driver is now throttling IO. 154 Checks added in megasas_queue_command to know if FW is able to 155 process commands within timeout period. If number of retries 156 is 2 or greater,the driver stops sending cmd to FW temporarily. IO is 157 resumed if pending cmd count reduces to 16 or 5 seconds has elapsed 158 from the time cmds were last sent to FW. 159 160ii. FW enables WCE bit in Mode Sense cmd for drives that are configured 161 as WriteBack. The OS may send "SYNCHRONIZE_CACHE" cmd when Logical 162 Disks are exposed with WCE=1. User is advised to enable Write Back 163 mode only when the controller has battery backup. At this time 164 Synhronize cache is not supported by the FW. Driver will short-cycle 165 the cmd and return sucess without sending down to FW. 166 1671 Release Date : Sun Jan. 14 11:21:32 PDT 2007 - 168 Sumant Patro <Sumant.Patro@lsil.com>/Bo Yang 1692 Current Version : 00.00.03.07 1703 Older Version : 00.00.03.06 171 172i. bios_param entry added in scsi_host_template that returns disk geometry 173 information. 174 1751 Release Date : Fri Oct 20 11:21:32 PDT 2006 - Sumant Patro <Sumant.Patro@lsil.com>/Bo Yang 1762 Current Version : 00.00.03.06 1773 Older Version : 00.00.03.05 178 1791. 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. 1802. Added check in megasas_queue_command and dpc/isr routine to see if we have already declared adapter dead 181 (hw_crit_error=1). If hw_crit_error==1, now we donot accept any processing of pending cmds/accept any cmd from OS 182 1831 Release Date : Mon Oct 02 11:21:32 PDT 2006 - Sumant Patro <Sumant.Patro@lsil.com> 1842 Current Version : 00.00.03.05 1853 Older Version : 00.00.03.04 186 187i. PCI_DEVICE macro used 188 189 Convert the pci_device_id-table of the megaraid_sas-driver to the PCI_DEVICE-macro, to safe some lines. 190 191 - Henrik Kretzschmar <henne@nachtwindheim.de> 192ii. All compiler warnings removed 193iii. megasas_ctrl_info struct reverted to 3.02 release 194iv. Default value of megasas_dbg_lvl set to 0 195v. Removing in megasas_exit the sysfs entry created for megasas_dbg_lvl 196vi. In megasas_teardown_frame_pool(), cmd->frame was passed instead of 197 cmd->sense to pci_pool_free. Fixed. Bug was pointed out by 198 Eric Sesterhenn 199 2001 Release Date : Wed Sep 13 14:22:51 PDT 2006 - Sumant Patro <Sumant.Patro@lsil.com> 2012 Current Version : 00.00.03.04 2023 Older Version : 00.00.03.03 203 204i. Added Reboot notify 205ii. Reduced by 1 max cmds sent to FW from Driver to make the reply_q_sz same 206 as Max Cmds FW can support 207 2081 Release Date : Tue Aug 22 16:33:14 PDT 2006 - Sumant Patro <Sumant.Patro@lsil.com> 2092 Current Version : 00.00.03.03 2103 Older Version : 00.00.03.02 211 212i. Send stop adapter to FW & Dump pending FW cmds before declaring adapter dead. 213 New varible added to set dbg level. 214ii. Disable interrupt made as fn pointer as they are different for 1068 / 1078 215iii. Frame count optimization. Main frame can contain 2 SGE for 64 bit SGLs and 216 3 SGE for 32 bit SGL 217iv. Tasklet added for cmd completion 218v. 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. 219vi. megasas_ctrl_prop structure updated (based on FW struct) 220vii. Added print : FW now in Ready State during initialization 221 2221 Release Date : Sun Aug 06 22:49:52 PDT 2006 - Sumant Patro <Sumant.Patro@lsil.com> 2232 Current Version : 00.00.03.02 2243 Older Version : 00.00.03.01 225 226i. Added FW tranistion state for Hotplug scenario 227 2281 Release Date : Sun May 14 22:49:52 PDT 2006 - Sumant Patro <Sumant.Patro@lsil.com> 2292 Current Version : 00.00.03.01 2303 Older Version : 00.00.02.04 231 232i. Added support for ZCR controller. 233 234 New device id 0x413 added. 235 236ii. Bug fix : Disable controller interrupt before firing INIT cmd to FW. 237 238 Interrupt is enabled after required initialization is over. 239 This is done to ensure that driver is ready to handle interrupts when 240 it is generated by the controller. 241 242 -Sumant Patro <Sumant.Patro@lsil.com> 243 2441 Release Date : Wed Feb 03 14:31:44 PST 2006 - Sumant Patro <Sumant.Patro@lsil.com> 2452 Current Version : 00.00.02.04 2463 Older Version : 00.00.02.04 247 248i. Remove superflous instance_lock 249 250 gets rid of the otherwise superflous instance_lock and avoids an unsave 251 unsynchronized access in the error handler. 252 253 - Christoph Hellwig <hch@lst.de> 254 255 2561 Release Date : Wed Feb 03 14:31:44 PST 2006 - Sumant Patro <Sumant.Patro@lsil.com> 2572 Current Version : 00.00.02.04 2583 Older Version : 00.00.02.04 259 260i. Support for 1078 type (ppc IOP) controller, device id : 0x60 added. 261 During initialization, depending on the device id, the template members 262 are initialized with function pointers specific to the ppc or 263 xscale controllers. 264 265 -Sumant Patro <Sumant.Patro@lsil.com> 266 2671 Release Date : Fri Feb 03 14:16:25 PST 2006 - Sumant Patro 268 <Sumant.Patro@lsil.com> 2692 Current Version : 00.00.02.04 2703 Older Version : 00.00.02.02 271i. Register 16 byte CDB capability with scsi midlayer 272 273 "Ths patch properly registers the 16 byte command length capability of the 274 megaraid_sas controlled hardware with the scsi midlayer. All megaraid_sas 275 hardware supports 16 byte CDB's." 276 277 -Joshua Giles <joshua_giles@dell.com> 278 2791 Release Date : Mon Jan 23 14:09:01 PST 2006 - Sumant Patro <Sumant.Patro@lsil.com> 2802 Current Version : 00.00.02.02 2813 Older Version : 00.00.02.01 282 283i. New template defined to represent each family of controllers (identified by processor used). 284 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. 285 286 -Sumant Patro <Sumant.Patro@lsil.com> 287 2881 Release Date : Mon Dec 19 14:36:26 PST 2005 - Sumant Patro <Sumant.Patro@lsil.com> 2892 Current Version : 00.00.02.00-rc4 2903 Older Version : 00.00.02.01 291 292i. Code reorganized to remove code duplication in megasas_build_cmd. 293 294 "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" 295 296 - Christoph Hellwig <hch@lst.de> 297 298ii. Defined MEGASAS_IOC_FIRMWARE32 for code paths that handles 32 bit applications in 64 bit systems. 299 300 "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" 301 302 - Christoph Hellwig <hch@lst.de> 303