Linux-2.6.12-rc2
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!
diff --git a/Documentation/scsi/ChangeLog.megaraid b/Documentation/scsi/ChangeLog.megaraid
new file mode 100644
index 0000000..a9356c6
--- /dev/null
+++ b/Documentation/scsi/ChangeLog.megaraid
@@ -0,0 +1,349 @@
+Release Date : Thu Feb 03 12:27:22 EST 2005 - Seokmann Ju <sju@lsil.com>
+Current Version : 2.20.4.5 (scsi module), 2.20.2.5 (cmm module)
+Older Version : 2.20.4.4 (scsi module), 2.20.2.4 (cmm module)
+
+1. Modified name of two attributes in scsi_host_template.
+ On Wed, 2005-02-02 at 10:56 -0500, Ju, Seokmann wrote:
+ > + .sdev_attrs = megaraid_device_attrs,
+ > + .shost_attrs = megaraid_class_device_attrs,
+
+ These are, perhaps, slightly confusing names.
+ The terms device and class_device have well defined meanings in the
+ generic device model, neither of which is what you mean here.
+ Why not simply megaraid_sdev_attrs and megaraid_shost_attrs?
+
+ Other than this, it looks fine to me too.
+
+Release Date : Thu Jan 27 00:01:03 EST 2005 - Atul Mukker <atulm@lsil.com>
+Current Version : 2.20.4.4 (scsi module), 2.20.2.5 (cmm module)
+Older Version : 2.20.4.3 (scsi module), 2.20.2.4 (cmm module)
+
+1. Bump up the version of scsi module due to its conflict.
+
+Release Date : Thu Jan 21 00:01:03 EST 2005 - Atul Mukker <atulm@lsil.com>
+Current Version : 2.20.4.3 (scsi module), 2.20.2.5 (cmm module)
+Older Version : 2.20.4.2 (scsi module), 2.20.2.4 (cmm module)
+
+1. Remove driver ioctl for logical drive to scsi address translation and
+ replace with the sysfs attribute. To remove drives and change
+ capacity, application shall now use the device attribute to get the
+ logical drive number for a scsi device. For adding newly created
+ logical drives, class device attribute would be required to uniquely
+ identify each controller.
+ - Atul Mukker <atulm@lsil.com>
+
+ "James, I've been thinking about this a little more, and you may be on
+ to something here. Let each driver add files as such:"
+
+ - Matt Domsch <Matt_Domsch@dell.com>, 12.15.2004
+ linux-scsi mailing list
+
+
+ "Then, if you simply publish your LD number as an extra parameter of
+ the device, you can look through /sys to find it."
+
+ - James Bottomley <James.Bottomley@SteelEye.com>, 01.03.2005
+ linux-scsi mailing list
+
+
+ "I don't see why not ... it's your driver, you can publish whatever
+ extra information you need as scsi_device attributes; that was one of
+ the designs of the extensible attribute system."
+
+ - James Bottomley <James.Bottomley@SteelEye.com>, 01.06.2005
+ linux-scsi mailing list
+
+2. Add AMI megaraid support - Brian King <brking@charter.net>
+ PCI_VENDOR_ID_AMI, PCI_DEVICE_ID_AMI_MEGARAID3,
+ PCI_VENDOR_ID_AMI, PCI_SUBSYS_ID_PERC3_DC,
+
+3. Make some code static - Adrian Bunk <bunk@stusta.de>
+ Date: Mon, 15 Nov 2004 03:14:57 +0100
+
+ The patch below makes some needlessly global code static.
+ -wait_queue_head_t wait_q;
+ +static wait_queue_head_t wait_q;
+
+ Signed-off-by: Adrian Bunk <bunk@stusta.de>
+
+4. Added NEC ROMB support - NEC MegaRAID PCI Express ROMB controller
+ PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_MEGARAID_NEC_ROMB_2E,
+ PCI_SUBSYS_ID_NEC, PCI_SUBSYS_ID_MEGARAID_NEC_ROMB_2E,
+
+5. Fixed Tape drive issue : For any Direct CDB command to physical device
+ including tape, timeout value set by driver was 10 minutes. With this
+ value, most of command will return within timeout. However, for those
+ command like ERASE or FORMAT, it takes more than an hour depends on
+ capacity of the device and the command could be terminated before it
+ completes.
+ To address this issue, the 'timeout' field in the DCDB command will
+ have NO TIMEOUT (i.e., 4) value as its timeout on DCDB command.
+
+
+
+Release Date : Thu Dec 9 19:10:23 EST 2004
+ - Sreenivas Bagalkote <sreenib@lsil.com>
+
+Current Version : 2.20.4.2 (scsi module), 2.20.2.4 (cmm module)
+Older Version : 2.20.4.1 (scsi module), 2.20.2.3 (cmm module)
+
+i. Introduced driver ioctl that returns scsi address for a given ld.
+
+ "Why can't the existing sysfs interfaces be used to do this?"
+ - Brian King (brking@us.ibm.com)
+
+ "I've looked into solving this another way, but I cannot see how
+ to get this driver-private mapping of logical drive number-> HCTL
+ without putting code something like this into the driver."
+
+ "...and by providing a mapping a function to userspace, the driver
+ is free to change its mapping algorithm in the future if necessary .."
+ - Matt Domsch (Matt_Domsch@dell.com)
+
+Release Date : Thu Dec 9 19:02:14 EST 2004 - Sreenivas Bagalkote <sreenib@lsil.com>
+
+Current Version : 2.20.4.1 (scsi module), 2.20.2.3 (cmm module)
+Older Version : 2.20.4.1 (scsi module), 2.20.2.2 (cmm module)
+
+i. Fix a bug in kioc's dma buffer deallocation
+
+Release Date : Thu Nov 4 18:24:56 EST 2004 - Sreenivas Bagalkote <sreenib@lsil.com>
+
+Current Version : 2.20.4.1 (scsi module), 2.20.2.2 (cmm module)
+Older Version : 2.20.4.0 (scsi module), 2.20.2.1 (cmm module)
+
+i. Handle IOCTL cmd timeouts more properly.
+
+ii. pci_dma_sync_{sg,single}_for_cpu was introduced into megaraid_mbox
+ incorrectly (instead of _for_device). Changed to appropriate
+ pci_dma_sync_{sg,single}_for_device.
+
+Release Date : Wed Oct 06 11:15:29 EDT 2004 - Sreenivas Bagalkote <sreenib@lsil.com>
+Current Version : 2.20.4.0 (scsi module), 2.20.2.1 (cmm module)
+Older Version : 2.20.4.0 (scsi module), 2.20.2.0 (cmm module)
+
+i. Remove CONFIG_COMPAT around register_ioctl32_conversion
+
+Release Date : Mon Sep 27 22:15:07 EDT 2004 - Atul Mukker <atulm@lsil.com>
+Current Version : 2.20.4.0 (scsi module), 2.20.2.0 (cmm module)
+Older Version : 2.20.3.1 (scsi module), 2.20.2.0 (cmm module)
+
+i. Fix data corruption. Because of a typo in the driver, the IO packets
+ were wrongly shared by the ioctl path. This causes a whole IO command
+ to be replaced by an incoming ioctl command.
+
+Release Date : Tue Aug 24 09:43:35 EDT 2004 - Atul Mukker <atulm@lsil.com>
+Current Version : 2.20.3.1 (scsi module), 2.20.2.0 (cmm module)
+Older Version : 2.20.3.0 (scsi module), 2.20.2.0 (cmm module)
+
+i. Function reordering so that inline functions are defined before they
+ are actually used. It is now mandatory for GCC 3.4.1 (current stable)
+
+ Declare some heavy-weight functions to be non-inlined,
+ megaraid_mbox_build_cmd, megaraid_mbox_runpendq,
+ megaraid_mbox_prepare_pthru, megaraid_mbox_prepare_epthru,
+ megaraid_busywait_mbox
+
+ - Andrew Morton <akpm@osdl.org>, 08.19.2004
+ linux-scsi mailing list
+
+ "Something else to clean up after inclusion: every instance of an
+ inline function is actually rendered as a full function call, because
+ the function is always used before it is defined. Atul, please
+ re-arrange the code to eliminate the need for most (all) of the
+ function prototypes at the top of each file, and define (not just
+ declare with a prototype) each inline function before its first use"
+
+ - Matt Domsch <Matt_Domsch@dell.com>, 07.27.2004
+ linux-scsi mailing list
+
+
+ii. Display elapsed time (countdown) while waiting for FW to boot.
+
+iii. Module compilation reorder in Makefile so that unresolved symbols do
+ not occur when driver is compiled non-modular.
+
+ Patrick J. LoPresti <patl@users.sourceforge.net>, 8.22.2004
+ linux-scsi mailing list
+
+
+Release Date : Thu Aug 19 09:58:33 EDT 2004 - Atul Mukker <atulm@lsil.com>
+Current Version : 2.20.3.0 (scsi module), 2.20.2.0 (cmm module)
+Older Version : 2.20.2.0 (scsi module), 2.20.1.0 (cmm module)
+
+i. When copying the mailbox packets, copy only first 14 bytes (for 32-bit
+ mailboxes) and only first 22 bytes (for 64-bit mailboxes). This is to
+ avoid getting the stale values for busy bit. We want to set the busy
+ bit just before issuing command to the FW.
+
+ii. In the reset handling, if the reseted command is not owned by the
+ driver, do not (wrongly) print information for the "attached" driver
+ packet.
+
+iii. Have extended wait when issuing command in synchronous mode. This is
+ required for the cases where the option ROM is disabled and there is
+ no BIOS to start the controller. The FW starts to boot after receiving
+ the first command from the driver. The current driver has 1 second
+ timeout for the synchronous commands, which is far less than what is
+ actually required. We now wait up to MBOX_RESET_TIME (180 seconds) for
+ FW boot process.
+
+iv. In megaraid_mbox_product_info, clear the mailbox contents completely
+ before preparing the command for inquiry3. This is to ensure that the
+ FW does not get junk values in the command.
+
+v. Do away with the redundant LSI_CONFIG_COMPAT redefinition for
+ CONFIG_COMPAT. Replace <asm/ioctl32.h> with <linux/ioctl32.h>
+
+ - James Bottomley <James.Bottomley@SteelEye.com>, 08.17.2004
+ linux-scsi mailing list
+
+vi. Add support for 64-bit applications. Current drivers assume only
+ 32-bit applications, even on 64-bit platforms. Use the "data" and
+ "buffer" fields of the mimd_t structure, instead of embedded 32-bit
+ addresses in application mailbox and passthru structures.
+
+vii. Move the function declarations for the management module from
+ megaraid_mm.h to megaraid_mm.c
+
+ - Andrew Morton <akpm@osdl.org>, 08.19.2004
+ linux-scsi mailing list
+
+viii. Change default values for MEGARAID_NEWGEN, MEGARAID_MM, and
+ MEGARAID_MAILBOX to 'n' in Kconfig.megaraid
+
+ - Andrew Morton <akpm@osdl.org>, 08.19.2004
+ linux-scsi mailing list
+
+ix. replace udelay with msleep
+
+x. Typos corrected in comments and whitespace adjustments, explicit
+ grouping of expressions.
+
+
+Release Date : Fri Jul 23 15:22:07 EDT 2004 - Atul Mukker <atulm@lsil.com>
+Current Version : 2.20.2.0 (scsi module), 2.20.1.0 (cmm module)
+Older Version : 2.20.1.0 (scsi module), 2.20.0.0 (cmm module)
+
+i. Add PCI ids for Acer ROMB 2E solution
+
+ii. Add PCI ids for I4
+
+iii. Typo corrected for subsys id for megaraid sata 300-4x
+
+iv. Remove yield() while mailbox handshake in synchronous commands
+
+
+ "My other main gripe is things like this:
+
+ + // wait for maximum 1 second for status to post
+ + for (i = 0; i < 40000; i++) {
+ + if (mbox->numstatus != 0xFF) break;
+ + udelay(25); yield();
+ + }
+
+ which litter the driver. Use of yield() in drivers is deprecated."
+
+ - James Bottomley <James.Bottomley@SteelEye.com>, 07.14.2004
+ linux-scsi mailing list
+
+v. Remove redundant __megaraid_busywait_mbox routine
+
+vi. Fix bug in the managment module, which causes a system lockup when the
+ IO module is loaded and then unloaded, followed by executing any
+ management utility. The current version of management module does not
+ handle the adapter unregister properly.
+
+ Specifically, it still keeps a reference to the unregistered
+ controllers. To avoid this, the static array adapters has been
+ replaced by a dynamic list, which gets updated every time an adapter
+ is added or removed.
+
+ Also, during unregistration of the IO module, the resources are
+ now released in the exact reverse order of the allocation time
+ sequence.
+
+
+Release Date : Fri Jun 25 18:58:43 EDT 2004 - Atul Mukker <atulm@lsil.com>
+Current Version : 2.20.1.0
+Older Version : megaraid 2.20.0.1
+
+i. Stale list pointer in adapter causes kernel panic when module
+ megaraid_mbox is unloaded
+
+
+Release Date : Thu Jun 24 20:37:11 EDT 2004 - Atul Mukker <atulm@lsil.com>
+Current Version : 2.20.0.1
+Older Version : megaraid 2.20.0.00
+
+i. Modules are not 'y' by default, but depend on current definition of
+ SCSI & PCI.
+
+ii. Redundant structure mraid_driver_t removed.
+
+iii. Miscellaneous indentation and goto/label fixes.
+ - Christoph Hellwig <hch@infradead.org>, 06.24.2004 linux-scsi
+
+iv. scsi_host_put(), do just before completing HBA shutdown.
+
+
+
+Release Date : Mon Jun 21 19:53:54 EDT 2004 - Atul Mukker <atulm@lsil.com>
+Current Version : 2.20.0.0
+Older Version : megaraid 2.20.0.rc2 and 2.00.3
+
+i. Independent module to interact with userland applications and
+ multiplex command to low level RAID module(s).
+
+ "Shared code in a third module, a "library module", is an acceptable
+ solution. modprobe automatically loads dependent modules, so users
+ running "modprobe driver1" or "modprobe driver2" would automatically
+ load the shared library module."
+
+ - Jeff Garzik <jgarzik@pobox.com> 02.25.2004 LKML
+
+ "As Jeff hinted, if your userspace<->driver API is consistent between
+ your new MPT-based RAID controllers and your existing megaraid driver,
+ then perhaps you need a single small helper module (lsiioctl or some
+ better name), loaded by both mptraid and megaraid automatically, which
+ handles registering the /dev/megaraid node dynamically. In this case,
+ both mptraid and megaraid would register with lsiioctl for each
+ adapter discovered, and lsiioctl would essentially be a switch,
+ redirecting userspace tool ioctls to the appropriate driver."
+
+ - Matt Domsch <Matt_Domsch@dell.com> 02.25.2004 LKML
+
+ii. Remove C99 initializations from pci_device id.
+
+ "pci_id_table_g would be much more readable when not using C99
+ initializers.
+ PCI table doesn't change, there's lots of users that prefer the more
+ readable variant. And it's really far less and much easier to grok
+ lines without C99 initializers."
+
+ - Christoph Hellwig <hch@infradead.org>, 05.28.2004 linux-scsi
+
+iii. Many fixes as suggested by Christoph Hellwig <hch@infradead.org> on
+ linux-scsi, 05.28.2004
+
+iv. We now support up to 32 parallel ioctl commands instead of current 1.
+ There is a conscious effort to let memory allocation not fail for ioctl
+ commands.
+
+v. Do away with internal memory management. Use pci_pool_(create|alloc)
+ instead.
+
+vi. Kill tasklet when unloading the driver.
+
+vii. Do not use "host_lock', driver has fine-grain locks now to protect all
+ data structures.
+
+viii. Optimize the build scatter-gather list routine. The callers already
+ know the data transfer address and length.
+
+ix. Better implementation of error handling and recovery. Driver now
+ performs extended errors recovery for instances like scsi cable pull.
+
+x. Disassociate the management commands with an overlaid scsi command.
+ Driver now treats the management packets as special packets and has a
+ dedicated callback routine.