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  1. 08 8月, 2011 1 次提交
  3. 09 7月, 2011 1 次提交
  5. 06 5月, 2011 3 次提交
  7. 24 3月, 2011 1 次提交
    • B
      cciss: fix lost command issue · 1ddd5049
      由 Bud Brown 提交于 
      Under certain workloads a command may seem to get lost. IOW, the Smart Array
thinks all commands have been completed but we still have commands in our
completion queue. This may lead to system instability, filesystems going
read-only, or even panics depending on the affected filesystem. We add an
extra read to force the write to complete.

Testing shows this extra read avoids the problem.
Signed-off-by: NMike Miller <mike.miller@hp.com>
Cc: stable@kernel.org
Signed-off-by: NJens Axboe <jaxboe@fusionio.com>
      1ddd5049
  9. 11 1月, 2011 1 次提交
  11. 24 10月, 2010 1 次提交
  13. 08 8月, 2010 5 次提交
  15. 01 3月, 2010 2 次提交
  17. 22 2月, 2010 1 次提交
  19. 23 11月, 2009 1 次提交
    • A
      cciss: change Cmd_sg_list.sg_chain_dma type to dma_addr_t · 32a87c01
      由 Alex Chiang 提交于 
      A recent commit broke the ia64 build:

	Author: Don Brace <brace@beardog.cce.hp.com>
	Date:   Thu Nov 12 12:50:01 2009 -0600

	cciss: Add enhanced scatter-gather support.

because of this hunk:

	--- a/drivers/block/cciss.h
	+++ b/drivers/block/cciss.h
	+struct Cmd_sg_list {
	+       SGDescriptor_struct     *sgchain;
	+       dma64_addr_t            sg_chain_dma;
	+       int                     chain_block_size;
	+};

The issue is that dma64_addr_t isn't #define'd on ia64.

The way that we're using Cmd_sg_list.sg_chain_dma is to hold an
address returned from pci_map_single().

	+               temp64.val = pci_map_single(h->pdev,
	+                                 h->cmd_sg_list[c->cmdindex]->sgchain,
	+                                 len, dir);
	+
	+               h->cmd_sg_list[c->cmdindex]->sg_chain_dma = temp64.val;

pci_map_single() returns a dma_addr_t too.

This code will still work even on a 32-bit x86 build, where
dma_addr_t is defined to be a u32 because it will simply be
promoted to the __u64 that temp64.val is defined as.

Thus, declaring Cmd_sg_list.sg_chain_dma as dma_addr_t is safe.

Cc: Don Brace <brace@beardog.cce.hp.com>
Cc: Stephen M. Cameron <scameron@beardog.cce.hp.com>
Signed-off-by: NAlex Chiang <achiang@hp.com>
Signed-off-by: NJens Axboe <jens.axboe@oracle.com>
      32a87c01
  21. 13 11月, 2009 1 次提交
  23. 02 10月, 2009 4 次提交
  25. 09 6月, 2009 2 次提交
  27. 02 6月, 2009 1 次提交
    • A
      cciss: add cciss driver sysfs entries · 7fe06326
      由 Andrew Patterson 提交于 
      Add sysfs entries to the cciss driver needed for the dm/multipath tools.

A file for vendor, model, rev, and unique_id is added for each logical
drive under directory /sys/bus/pci/devices/<dev>/ccissX/cXdY.  Where X =
the controller (or host) number and Y is the logical drive number.

A link from /sys/bus/pci/devices/<dev>/ccissX/cXdY/block:cciss!cXdY to
/sys/block/cciss!cXdY/device is also created.  A bus is created in
/sys/bus/cciss.  A link is created from the pci ccissX entry to
/sys/bus/cciss/devices/ccissX.  Please consider this for inclusion.
Signed-off-by: NMike Miller <mike.miller@hp.com>
Cc: Stephen M. Cameron <scameron@beardog.cca.cpqcorp.net>
Signed-off-by: NJens Axboe <jens.axboe@oracle.com>
      7fe06326
  29. 07 4月, 2009 1 次提交
    • M
      cciss: kernel scan thread for MSA2012 · 0a9279cc
      由 Mike Miller 提交于 
      The MSA2012 cannot inform the driver of configuration changes since all
management is out of band.  This is a departure from any storage we have
supported in the past.  We need some way to detect changes on the topology
so we implement this kernel thread.  In some instances there's nothing we
can do from the driver (like LUN failure) so just print out a message.  In
the case where logical volumes are added or deleted we call
rebuild_lun_table to refresh the driver's view of the world.
Signed-off-by: NMike Miller <mike.miller@hp.com>
Cc: James Bottomley <James.Bottomley@HansenPartnership.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NJens Axboe <jens.axboe@oracle.com>
      0a9279cc
  31. 29 12月, 2008 1 次提交
  33. 06 8月, 2008 1 次提交
  35. 08 12月, 2006 3 次提交
  37. 01 10月, 2006 1 次提交
  39. 26 6月, 2006 1 次提交
  41. 09 1月, 2006 2 次提交
    • C
      [PATCH] cciss: avoid defining useless MAJOR_NR macro · 564de74a
      由 Christoph Hellwig 提交于 
      This sneaked in with one of the updates.
Signed-off-by: NAdrian Bunk <bunk@stusta.de>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
      564de74a
    • M
      [PATCH] cciss: adds MSI and MSI-X support · fb86a35b
      由 Mike Miller 提交于 
      This creates a new function, cciss_interrupt_mode called from
cciss_pci_init.  This function determines what type of interrupt vector to
use, i.e., MSI, MSI-X, or IO-APIC.

One noticeable difference is changing the interrupt field of the controller
struct to an array of 4 unsigned ints.  The Smart Array HW is capable of
generating 4 distinct interrupts depending on the transport method in use
during operation.  These are:

#define DOORBELL_INT 0
Used to notify the contoller of configuration updates. We only use
this feature when in polling mode.

#define PERF_MODE_INT 0
Used when the controller is in Performant Mode.

#define SIMPLE_MODE_INT 2
Used when the controller is in Simple Mode (current Linux implementation).

#define MEMQ_INT_MODE 3
Not used.

When using IO-APIC interrupts these 4 lines are OR'ed together so when any
one fires an interrupt an is generated.  In MSI or MSI-X mode this hardware
OR'ing is ignored.  We must register for our interrupt depending on what
mode the controller is running.  For Linux we use SIMPLE_MODE_INT
exclusively at this time.  Please consider this for inclusion.
Signed-off-by: NMike Miller <mike.miller@hp.com>
Cc: Jens Axboe <axboe@suse.de>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
      fb86a35b
  43. 07 11月, 2005 1 次提交
  45. 13 9月, 2005 3 次提交
  47. 28 7月, 2005 1 次提交
    • M
      [PATCH] cciss per disk queue · ad2b9312
      由 Mike Miller 提交于 
      This patch adds per disk queue functionality to cciss.  Sometime back I
submitted a patch but it looks like only part of what I needed.  In the 2.6
kernel if we have more than one logical volume the driver will Oops during
rmmod.  It seems all of the queues actually point back to the same queue.
So after deleting the first volume you hit a null pointer on the second
one.

This has been tested in our labs.  There is no difference in performance,
it just fixes the Oops.
Signed-off-by: NMike Miller <mike.miller@hp.com>
Cc: Jens Axboe <axboe@suse.de>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
      ad2b9312