1 21 Release Date : Thur.July. 24 11:41:51 PST 2008 - 3 (emaild-id:megaraidlinux@lsi.com) 4 Sumant Patro 5 Bo Yang 6 72 Current Version : 00.00.04.01 83 Older Version : 00.00.03.22 9 101. Add the new controller (0078, 0079) support to the driver 11 Those controllers are LSI's next generatation(gen2) SAS controllers. 12 131 Release Date : Mon.June. 23 10:12:45 PST 2008 - 14 (emaild-id:megaraidlinux@lsi.com) 15 Sumant Patro 16 Bo Yang 17 182 Current Version : 00.00.03.22 193 Older Version : 00.00.03.20 20 211. Add shutdown DCMD cmd to the shutdown routine to make FW shutdown proper. 222. Unexpected interrupt occurs in HWR Linux driver, add the dumy readl pci flush will fix this issue. 23 241 Release Date : Mon. March 10 11:02:31 PDT 2008 - 25 (emaild-id:megaraidlinux@lsi.com) 26 Sumant Patro 27 Bo Yang 28 292 Current Version : 00.00.03.20-RC1 303 Older Version : 00.00.03.16 31 321. 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. 35 362. 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. 40 413. 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. 45 461 Release Date : Thur. Nov. 07 16:30:43 PST 2007 - 47 (emaild-id:megaraidlinux@lsi.com) 48 Sumant Patro 49 Bo Yang 50 512 Current Version : 00.00.03.16 523 Older Version : 00.00.03.15 53 541. 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. 56 571 Release Date : Fri. Sep. 07 16:30:43 PST 2007 - 58 (emaild-id:megaraidlinux@lsi.com) 59 Sumant Patro 60 Bo Yang 61 622 Current Version : 00.00.03.15 633 Older Version : 00.00.03.14 64 651. 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. 72 731 Release Date : Fri. Sep. 07 16:30:43 PST 2007 - 74 (emaild-id:megaraidlinux@lsi.com) 75 Sumant Patro 76 Bo Yang 77 782 Current Version : 00.00.03.14 793 Older Version : 00.00.03.13 80 811. 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. 91 921 Release Date : Fri. June. 15 16:30:43 PST 2007 - 93 (emaild-id:megaraidlinux@lsi.com) 94 Sumant Patro 95 Bo Yang 96 972 Current Version : 00.00.03.13 983 Older Version : 00.00.03.12 99 1001. Added the megasas_reset_timer routine to intercept cmd timeout and throttle io. 101 102On Fri, 2007-03-16 at 16:44 -0600, James Bottomley wrote: 103It 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 1101 Release Date : Sat May. 12 16:30:43 PST 2007 - 111 (emaild-id:megaraidlinux@lsi.com) 112 Sumant Patro 113 Bo Yang 114 1152 Current Version : 00.00.03.12 1163 Older Version : 00.00.03.11 117 1181. When MegaSAS driver receives reset call from OS, driver waits in reset 119routine for max 3 minutes for all pending command completion. Now driver will 120call completion routine every 5 seconds from the reset routine instead of 121waiting for depending on cmd completion from isr path. 122 1231 Release Date : Mon Apr. 30 10:25:52 PST 2007 - 124 (emaild-id:megaraidlinux@lsi.com) 125 Sumant Patro 126 Bo Yang 127 1282 Current Version : 00.00.03.11 1293 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 1541 Release Date : Fri Feb. 09 14:36:28 PST 2007 - 155 (emaild-id:megaraidlinux@lsi.com) 156 Sumant Patro 157 Bo Yang 158 1592 Current Version : 00.00.03.09 1603 Older Version : 00.00.03.08 161 162i. 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 1671 Release Date : Mon Feb. 05 11:35:24 PST 2007 - 168 (emaild-id:megaraidlinux@lsi.com) 169 Sumant Patro 170 Bo Yang 1712 Current Version : 00.00.03.08 1723 Older Version : 00.00.03.07 173 174i. 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 183ii. 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 188 the cmd and return sucess without sending down to FW. 189 1901 Release Date : Sun Jan. 14 11:21:32 PDT 2007 - 191 Sumant Patro <Sumant.Patro@lsil.com>/Bo Yang 1922 Current Version : 00.00.03.07 1933 Older Version : 00.00.03.06 194 195i. bios_param entry added in scsi_host_template that returns disk geometry 196 information. 197 1981 Release Date : Fri Oct 20 11:21:32 PDT 2006 - Sumant Patro <Sumant.Patro@lsil.com>/Bo Yang 1992 Current Version : 00.00.03.06 2003 Older Version : 00.00.03.05 201 2021. 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. 2032. 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 205 2061 Release Date : Mon Oct 02 11:21:32 PDT 2006 - Sumant Patro <Sumant.Patro@lsil.com> 2072 Current Version : 00.00.03.05 2083 Older Version : 00.00.03.04 209 210i. 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> 215ii. All compiler warnings removed 216iii. megasas_ctrl_info struct reverted to 3.02 release 217iv. Default value of megasas_dbg_lvl set to 0 218v. Removing in megasas_exit the sysfs entry created for megasas_dbg_lvl 219vi. 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 2231 Release Date : Wed Sep 13 14:22:51 PDT 2006 - Sumant Patro <Sumant.Patro@lsil.com> 2242 Current Version : 00.00.03.04 2253 Older Version : 00.00.03.03 226 227i. Added Reboot notify 228ii. 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 2311 Release Date : Tue Aug 22 16:33:14 PDT 2006 - Sumant Patro <Sumant.Patro@lsil.com> 2322 Current Version : 00.00.03.03 2333 Older Version : 00.00.03.02 234 235i. Send stop adapter to FW & Dump pending FW cmds before declaring adapter dead. 236 New varible added to set dbg level. 237ii. Disable interrupt made as fn pointer as they are different for 1068 / 1078 238iii. Frame count optimization. Main frame can contain 2 SGE for 64 bit SGLs and 239 3 SGE for 32 bit SGL 240iv. Tasklet added for cmd completion 241v. 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. 242vi. megasas_ctrl_prop structure updated (based on FW struct) 243vii. Added print : FW now in Ready State during initialization 244 2451 Release Date : Sun Aug 06 22:49:52 PDT 2006 - Sumant Patro <Sumant.Patro@lsil.com> 2462 Current Version : 00.00.03.02 2473 Older Version : 00.00.03.01 248 249i. Added FW tranistion state for Hotplug scenario 250 2511 Release Date : Sun May 14 22:49:52 PDT 2006 - Sumant Patro <Sumant.Patro@lsil.com> 2522 Current Version : 00.00.03.01 2533 Older Version : 00.00.02.04 254 255i. Added support for ZCR controller. 256 257 New device id 0x413 added. 258 259ii. 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 2671 Release Date : Wed Feb 03 14:31:44 PST 2006 - Sumant Patro <Sumant.Patro@lsil.com> 2682 Current Version : 00.00.02.04 2693 Older Version : 00.00.02.04 270 271i. 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 2791 Release Date : Wed Feb 03 14:31:44 PST 2006 - Sumant Patro <Sumant.Patro@lsil.com> 2802 Current Version : 00.00.02.04 2813 Older Version : 00.00.02.04 282 283i. 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 2901 Release Date : Fri Feb 03 14:16:25 PST 2006 - Sumant Patro 291 <Sumant.Patro@lsil.com> 2922 Current Version : 00.00.02.04 2933 Older Version : 00.00.02.02 294i. 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 3021 Release Date : Mon Jan 23 14:09:01 PST 2006 - Sumant Patro <Sumant.Patro@lsil.com> 3032 Current Version : 00.00.02.02 3043 Older Version : 00.00.02.01 305 306i. 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 3111 Release Date : Mon Dec 19 14:36:26 PST 2005 - Sumant Patro <Sumant.Patro@lsil.com> 3122 Current Version : 00.00.02.00-rc4 3133 Older Version : 00.00.02.01 314 315i. 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 321ii. 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> 326