1da177e4c3
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
349 lines
13 KiB
Text
349 lines
13 KiB
Text
Release Date : Thu Feb 03 12:27:22 EST 2005 - Seokmann Ju <sju@lsil.com>
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Current Version : 2.20.4.5 (scsi module), 2.20.2.5 (cmm module)
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Older Version : 2.20.4.4 (scsi module), 2.20.2.4 (cmm module)
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1. Modified name of two attributes in scsi_host_template.
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On Wed, 2005-02-02 at 10:56 -0500, Ju, Seokmann wrote:
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> + .sdev_attrs = megaraid_device_attrs,
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> + .shost_attrs = megaraid_class_device_attrs,
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These are, perhaps, slightly confusing names.
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The terms device and class_device have well defined meanings in the
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generic device model, neither of which is what you mean here.
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Why not simply megaraid_sdev_attrs and megaraid_shost_attrs?
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Other than this, it looks fine to me too.
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Release Date : Thu Jan 27 00:01:03 EST 2005 - Atul Mukker <atulm@lsil.com>
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Current Version : 2.20.4.4 (scsi module), 2.20.2.5 (cmm module)
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Older Version : 2.20.4.3 (scsi module), 2.20.2.4 (cmm module)
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1. Bump up the version of scsi module due to its conflict.
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Release Date : Thu Jan 21 00:01:03 EST 2005 - Atul Mukker <atulm@lsil.com>
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Current Version : 2.20.4.3 (scsi module), 2.20.2.5 (cmm module)
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Older Version : 2.20.4.2 (scsi module), 2.20.2.4 (cmm module)
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1. Remove driver ioctl for logical drive to scsi address translation and
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replace with the sysfs attribute. To remove drives and change
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capacity, application shall now use the device attribute to get the
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logical drive number for a scsi device. For adding newly created
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logical drives, class device attribute would be required to uniquely
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identify each controller.
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- Atul Mukker <atulm@lsil.com>
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"James, I've been thinking about this a little more, and you may be on
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to something here. Let each driver add files as such:"
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- Matt Domsch <Matt_Domsch@dell.com>, 12.15.2004
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linux-scsi mailing list
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"Then, if you simply publish your LD number as an extra parameter of
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the device, you can look through /sys to find it."
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- James Bottomley <James.Bottomley@SteelEye.com>, 01.03.2005
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linux-scsi mailing list
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"I don't see why not ... it's your driver, you can publish whatever
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extra information you need as scsi_device attributes; that was one of
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the designs of the extensible attribute system."
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- James Bottomley <James.Bottomley@SteelEye.com>, 01.06.2005
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linux-scsi mailing list
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2. Add AMI megaraid support - Brian King <brking@charter.net>
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PCI_VENDOR_ID_AMI, PCI_DEVICE_ID_AMI_MEGARAID3,
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PCI_VENDOR_ID_AMI, PCI_SUBSYS_ID_PERC3_DC,
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3. Make some code static - Adrian Bunk <bunk@stusta.de>
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Date: Mon, 15 Nov 2004 03:14:57 +0100
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The patch below makes some needlessly global code static.
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-wait_queue_head_t wait_q;
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+static wait_queue_head_t wait_q;
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Signed-off-by: Adrian Bunk <bunk@stusta.de>
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4. Added NEC ROMB support - NEC MegaRAID PCI Express ROMB controller
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PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_MEGARAID_NEC_ROMB_2E,
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PCI_SUBSYS_ID_NEC, PCI_SUBSYS_ID_MEGARAID_NEC_ROMB_2E,
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5. Fixed Tape drive issue : For any Direct CDB command to physical device
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including tape, timeout value set by driver was 10 minutes. With this
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value, most of command will return within timeout. However, for those
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command like ERASE or FORMAT, it takes more than an hour depends on
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capacity of the device and the command could be terminated before it
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completes.
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To address this issue, the 'timeout' field in the DCDB command will
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have NO TIMEOUT (i.e., 4) value as its timeout on DCDB command.
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Release Date : Thu Dec 9 19:10:23 EST 2004
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- Sreenivas Bagalkote <sreenib@lsil.com>
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Current Version : 2.20.4.2 (scsi module), 2.20.2.4 (cmm module)
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Older Version : 2.20.4.1 (scsi module), 2.20.2.3 (cmm module)
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i. Introduced driver ioctl that returns scsi address for a given ld.
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"Why can't the existing sysfs interfaces be used to do this?"
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- Brian King (brking@us.ibm.com)
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"I've looked into solving this another way, but I cannot see how
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to get this driver-private mapping of logical drive number-> HCTL
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without putting code something like this into the driver."
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"...and by providing a mapping a function to userspace, the driver
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is free to change its mapping algorithm in the future if necessary .."
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- Matt Domsch (Matt_Domsch@dell.com)
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Release Date : Thu Dec 9 19:02:14 EST 2004 - Sreenivas Bagalkote <sreenib@lsil.com>
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Current Version : 2.20.4.1 (scsi module), 2.20.2.3 (cmm module)
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Older Version : 2.20.4.1 (scsi module), 2.20.2.2 (cmm module)
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i. Fix a bug in kioc's dma buffer deallocation
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Release Date : Thu Nov 4 18:24:56 EST 2004 - Sreenivas Bagalkote <sreenib@lsil.com>
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Current Version : 2.20.4.1 (scsi module), 2.20.2.2 (cmm module)
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Older Version : 2.20.4.0 (scsi module), 2.20.2.1 (cmm module)
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i. Handle IOCTL cmd timeouts more properly.
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ii. pci_dma_sync_{sg,single}_for_cpu was introduced into megaraid_mbox
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incorrectly (instead of _for_device). Changed to appropriate
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pci_dma_sync_{sg,single}_for_device.
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Release Date : Wed Oct 06 11:15:29 EDT 2004 - Sreenivas Bagalkote <sreenib@lsil.com>
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Current Version : 2.20.4.0 (scsi module), 2.20.2.1 (cmm module)
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Older Version : 2.20.4.0 (scsi module), 2.20.2.0 (cmm module)
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i. Remove CONFIG_COMPAT around register_ioctl32_conversion
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Release Date : Mon Sep 27 22:15:07 EDT 2004 - Atul Mukker <atulm@lsil.com>
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Current Version : 2.20.4.0 (scsi module), 2.20.2.0 (cmm module)
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Older Version : 2.20.3.1 (scsi module), 2.20.2.0 (cmm module)
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i. Fix data corruption. Because of a typo in the driver, the IO packets
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were wrongly shared by the ioctl path. This causes a whole IO command
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to be replaced by an incoming ioctl command.
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Release Date : Tue Aug 24 09:43:35 EDT 2004 - Atul Mukker <atulm@lsil.com>
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Current Version : 2.20.3.1 (scsi module), 2.20.2.0 (cmm module)
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Older Version : 2.20.3.0 (scsi module), 2.20.2.0 (cmm module)
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i. Function reordering so that inline functions are defined before they
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are actually used. It is now mandatory for GCC 3.4.1 (current stable)
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Declare some heavy-weight functions to be non-inlined,
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megaraid_mbox_build_cmd, megaraid_mbox_runpendq,
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megaraid_mbox_prepare_pthru, megaraid_mbox_prepare_epthru,
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megaraid_busywait_mbox
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- Andrew Morton <akpm@osdl.org>, 08.19.2004
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linux-scsi mailing list
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"Something else to clean up after inclusion: every instance of an
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inline function is actually rendered as a full function call, because
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the function is always used before it is defined. Atul, please
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re-arrange the code to eliminate the need for most (all) of the
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function prototypes at the top of each file, and define (not just
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declare with a prototype) each inline function before its first use"
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- Matt Domsch <Matt_Domsch@dell.com>, 07.27.2004
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linux-scsi mailing list
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ii. Display elapsed time (countdown) while waiting for FW to boot.
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iii. Module compilation reorder in Makefile so that unresolved symbols do
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not occur when driver is compiled non-modular.
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Patrick J. LoPresti <patl@users.sourceforge.net>, 8.22.2004
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linux-scsi mailing list
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Release Date : Thu Aug 19 09:58:33 EDT 2004 - Atul Mukker <atulm@lsil.com>
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Current Version : 2.20.3.0 (scsi module), 2.20.2.0 (cmm module)
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Older Version : 2.20.2.0 (scsi module), 2.20.1.0 (cmm module)
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i. When copying the mailbox packets, copy only first 14 bytes (for 32-bit
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mailboxes) and only first 22 bytes (for 64-bit mailboxes). This is to
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avoid getting the stale values for busy bit. We want to set the busy
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bit just before issuing command to the FW.
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ii. In the reset handling, if the reseted command is not owned by the
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driver, do not (wrongly) print information for the "attached" driver
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packet.
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iii. Have extended wait when issuing command in synchronous mode. This is
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required for the cases where the option ROM is disabled and there is
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no BIOS to start the controller. The FW starts to boot after receiving
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the first command from the driver. The current driver has 1 second
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timeout for the synchronous commands, which is far less than what is
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actually required. We now wait up to MBOX_RESET_TIME (180 seconds) for
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FW boot process.
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iv. In megaraid_mbox_product_info, clear the mailbox contents completely
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before preparing the command for inquiry3. This is to ensure that the
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FW does not get junk values in the command.
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v. Do away with the redundant LSI_CONFIG_COMPAT redefinition for
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CONFIG_COMPAT. Replace <asm/ioctl32.h> with <linux/ioctl32.h>
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- James Bottomley <James.Bottomley@SteelEye.com>, 08.17.2004
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linux-scsi mailing list
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vi. Add support for 64-bit applications. Current drivers assume only
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32-bit applications, even on 64-bit platforms. Use the "data" and
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"buffer" fields of the mimd_t structure, instead of embedded 32-bit
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addresses in application mailbox and passthru structures.
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vii. Move the function declarations for the management module from
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megaraid_mm.h to megaraid_mm.c
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- Andrew Morton <akpm@osdl.org>, 08.19.2004
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linux-scsi mailing list
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viii. Change default values for MEGARAID_NEWGEN, MEGARAID_MM, and
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MEGARAID_MAILBOX to 'n' in Kconfig.megaraid
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- Andrew Morton <akpm@osdl.org>, 08.19.2004
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linux-scsi mailing list
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ix. replace udelay with msleep
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x. Typos corrected in comments and whitespace adjustments, explicit
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grouping of expressions.
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Release Date : Fri Jul 23 15:22:07 EDT 2004 - Atul Mukker <atulm@lsil.com>
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Current Version : 2.20.2.0 (scsi module), 2.20.1.0 (cmm module)
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Older Version : 2.20.1.0 (scsi module), 2.20.0.0 (cmm module)
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i. Add PCI ids for Acer ROMB 2E solution
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ii. Add PCI ids for I4
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iii. Typo corrected for subsys id for megaraid sata 300-4x
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iv. Remove yield() while mailbox handshake in synchronous commands
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"My other main gripe is things like this:
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+ // wait for maximum 1 second for status to post
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+ for (i = 0; i < 40000; i++) {
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+ if (mbox->numstatus != 0xFF) break;
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+ udelay(25); yield();
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+ }
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which litter the driver. Use of yield() in drivers is deprecated."
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- James Bottomley <James.Bottomley@SteelEye.com>, 07.14.2004
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linux-scsi mailing list
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v. Remove redundant __megaraid_busywait_mbox routine
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vi. Fix bug in the managment module, which causes a system lockup when the
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IO module is loaded and then unloaded, followed by executing any
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management utility. The current version of management module does not
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handle the adapter unregister properly.
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Specifically, it still keeps a reference to the unregistered
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controllers. To avoid this, the static array adapters has been
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replaced by a dynamic list, which gets updated every time an adapter
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is added or removed.
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Also, during unregistration of the IO module, the resources are
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now released in the exact reverse order of the allocation time
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sequence.
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Release Date : Fri Jun 25 18:58:43 EDT 2004 - Atul Mukker <atulm@lsil.com>
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Current Version : 2.20.1.0
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Older Version : megaraid 2.20.0.1
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i. Stale list pointer in adapter causes kernel panic when module
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megaraid_mbox is unloaded
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Release Date : Thu Jun 24 20:37:11 EDT 2004 - Atul Mukker <atulm@lsil.com>
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Current Version : 2.20.0.1
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Older Version : megaraid 2.20.0.00
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i. Modules are not 'y' by default, but depend on current definition of
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SCSI & PCI.
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ii. Redundant structure mraid_driver_t removed.
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iii. Miscellaneous indentation and goto/label fixes.
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- Christoph Hellwig <hch@infradead.org>, 06.24.2004 linux-scsi
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iv. scsi_host_put(), do just before completing HBA shutdown.
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Release Date : Mon Jun 21 19:53:54 EDT 2004 - Atul Mukker <atulm@lsil.com>
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Current Version : 2.20.0.0
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Older Version : megaraid 2.20.0.rc2 and 2.00.3
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i. Independent module to interact with userland applications and
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multiplex command to low level RAID module(s).
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"Shared code in a third module, a "library module", is an acceptable
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solution. modprobe automatically loads dependent modules, so users
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running "modprobe driver1" or "modprobe driver2" would automatically
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load the shared library module."
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- Jeff Garzik <jgarzik@pobox.com> 02.25.2004 LKML
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"As Jeff hinted, if your userspace<->driver API is consistent between
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your new MPT-based RAID controllers and your existing megaraid driver,
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then perhaps you need a single small helper module (lsiioctl or some
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better name), loaded by both mptraid and megaraid automatically, which
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handles registering the /dev/megaraid node dynamically. In this case,
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both mptraid and megaraid would register with lsiioctl for each
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adapter discovered, and lsiioctl would essentially be a switch,
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redirecting userspace tool ioctls to the appropriate driver."
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- Matt Domsch <Matt_Domsch@dell.com> 02.25.2004 LKML
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ii. Remove C99 initializations from pci_device id.
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"pci_id_table_g would be much more readable when not using C99
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initializers.
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PCI table doesn't change, there's lots of users that prefer the more
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readable variant. And it's really far less and much easier to grok
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lines without C99 initializers."
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- Christoph Hellwig <hch@infradead.org>, 05.28.2004 linux-scsi
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iii. Many fixes as suggested by Christoph Hellwig <hch@infradead.org> on
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linux-scsi, 05.28.2004
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iv. We now support up to 32 parallel ioctl commands instead of current 1.
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There is a conscious effort to let memory allocation not fail for ioctl
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commands.
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v. Do away with internal memory management. Use pci_pool_(create|alloc)
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instead.
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vi. Kill tasklet when unloading the driver.
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vii. Do not use "host_lock', driver has fine-grain locks now to protect all
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data structures.
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viii. Optimize the build scatter-gather list routine. The callers already
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know the data transfer address and length.
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ix. Better implementation of error handling and recovery. Driver now
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performs extended errors recovery for instances like scsi cable pull.
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x. Disassociate the management commands with an overlaid scsi command.
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Driver now treats the management packets as special packets and has a
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dedicated callback routine.
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