Commit Graph

76 Commits

Author SHA1 Message Date
James Smart 7054a606e6 [SCSI] lpfc 8.1.12 : Round 2 of Miscellaneous fixes
Round 2 of Miscellaneous fixes:
 - Ensure we don't prematurely re-enable IRQs in lpfc_sli_abort_fcp_cmpl().
 - Prevent freeing of iocb after IOCB_TIMEDOUT error.
 - Added code to cleanup REG_LOGIN mailbox command when a LOGO is received.
 - Fix offline window where more work can sneak in after clearing work_ha
 - Use target reset instead of LU reset in bus_device_reset_handler
 - Fixed system hangs due to leaked host_lock.
 - Fixed NULL pointer dereference during I/O with LIP.
 - Fixed false iocb timeout.
 - Fixed name server query response handling.
 - Change rport dev_loss_tmo value when user change lpfc HBA's dev_loss_tmo.
 - Fixed a memory leak in lpfc_sli_wake_mbox_wait.
 - Fixed check for dropped frames.
 - Removed hba queue depth calculation based on device PCI IDs
 - Change min cr_count value specified in comment to agree with setting

Signed-off-by: James Smart <James.Smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-05-06 09:33:14 -05:00
James Smart 46fa311e69 [SCSI] lpfc 8.1.12 : Rework offline path to solve HBA reset issues
Rework offline path to solve HBA reset issues

Signed-off-by: James Smart <James.Smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-05-06 09:33:13 -05:00
James Smart 1dcb58e568 [SCSI] lpfc 8.1.12 : Misc bug fixes and code cleanup
Misc bug fixes and code cleanup:
 - Fix system hang while running on systems with IOMMU
 - Fix use after free issues with rports
 - Don't free mailbox structure if it's still on the mboxq list
 - Decrement txq_cnt rather than txcmplq_cnt when parsing the txq list
 - Use msleep for long delays to prevent soft lockup bug check
 - Don't remove node during dev_loss_tmo if discovery is active
 - Fix memory leaks in get/reset statistics and link attention paths
 - Fixed lpfc_ns_rsp to handle entire GID_FT response.
 - mbox interface should use MAILBOX_CMD_SIZE rather than sizeof(MAILBOX_t)
 - Fixed bug check in add_timer.
 - Fixup messages 0116, 0117, and 0128 to report ELS I/O tag.
 - Remove unused parameter to lpfc_cleanup.
 - Change mailbox timeout handling.
 - Remove unused buflist. Code cleanup.

Signed-off-by: James Smart <James.Smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-05-06 09:33:12 -05:00
James Smart a12e07bc62 [SCSI] lpfc 8.1.11 : Add soft_wwnn sysfs attribute, rename soft_wwn_enable
The driver now allows both wwpn and wwnn to be set.

Signed-off-by: James Smart <James.Smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2006-12-03 09:34:43 -06:00
James Smart 4ff43246e4 [SCSI] lpfc 8.1.11 : Add MSI (Message Signalled Interrupts) support
Add MSI (Message Signalled Interrupts) support
  Actual use must be enabled via the new module parameter "lpfc_use_msi"
  Defaults to no use

Many thanks to Frederic Temporelli who implemented the initial patch.

Signed-off-by: Frederic Temporelli <frederic.temporelli@ext.bull.net>
Signed-off-by: James Smart <James.Smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2006-12-03 09:31:04 -06:00
James Smart a4bc3379fb [SCSI] lpfc 8.1.11 : Fix lpfc_multi_ring_support
It was not accounted for in the fast/slow rings.
Genericize the implementation and control it via sysfs

Signed-off-by: James Smart <James.Smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2006-12-03 09:29:18 -06:00
James Smart c3f28afa61 [SCSI] lpfc 8.1.10 : Add support for new lpfc soft_wwpn attribute
Add support for a new lpfc soft_wwpn sysfs attribute

Signed-off-by: James Smart <James.Smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2006-09-04 21:25:41 -05:00
James Smart c01f320879 [SCSI] lpfc 8.1.10 : Add support for dev_loss_tmo_callbk and fast_io_fail_tmo_callbk
Add support for new dev_loss_tmo callback
  Goodness is that it removes code for a parallel nodev timer that
  existed in the driver
Add support for the new fast_io_fail callback

Signed-off-by: James Smart <James.Smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2006-09-04 21:25:21 -05:00
James Smart d2873e4c1e [SCSI] lpfc 8.1.10 : Add support to post events via new FC event interfaces
Add support to post events via new FC event interfaces

Signed-off-by: James Smart <James.Smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2006-09-02 15:35:48 -05:00
James Smart e17da18e2f [SCSI] lpfc 8.1.7: Standardize the driver on a single define for the maximum supported targets
Standardize the driver on a single define for the maximum supported targets.

Signed-off-by: James Smart <James.Smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2006-07-09 10:19:03 -05:00
James Smart 79ac6745e4 [SCSI] Block I/O while SG reset operation in progress - lpfc portion
This removes the duplicate functionality which had been added to
the lpfc driver.

Signed-off-by: James Smart <James.Smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2006-06-27 10:51:12 -05:00
James Smart 9290831f00 [SCSI] lpfc 8.1.4 : Introduce lpfc_reset_barrier() function for resets on dual channel adapters
Introduce lpfc_reset_barrier() function for resets on dual channel adapters

Workaround for a hardware errata on dual channel asics. There is a
potential for the chip to lock up on a reset if a shared dma engine is in
use. The (ugly) work around requires a reset process which uses a mailbox
command to synchronize the independent channels prior to the reset to
avoid the issue. Unfortunately, the timing windows required to ensure this
workaround succeeds are very specific, meaning we can't release the cpu
during the barrier.

Signed-off-by: James Smart <James.Smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2006-03-12 08:56:58 -06:00
Jamie Wellnitz cf5bf97e1d [PATCH] lpfc 8.1.3: Fix performance when using multiple SLI rings
Fix performance when using multiple SLI rings

Currently the driver allocates all of its SLI command and response ring
entries to one primary ring. Other rings get little, or no, resources.

Allow more resources to be given to ring 1

Signed-off-by: Jamie Wellnitz <Jamie.Wellnitz@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2006-03-06 09:46:57 -06:00
Jamie Wellnitz 41415862a2 [SCSI] lpfc 8.1.2: Add ERROR and WARM_START modes for diagnostic purposes.
Add ERROR and WARM_START modes for diagnostic purposes.

Signed-off-by: Jamie Wellnitz <Jamie.Wellnitz@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2006-02-28 19:00:36 -06:00
Jamie Wellnitz d9d959c41f [SCSI] lpfc 8.1.2: Remove hba_list from struct lpfc_hba
Remove hba_list from struct lpfc_hba

Signed-off-by: Jamie Wellnitz <Jamie.Wellnitz@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2006-02-28 19:00:11 -06:00
Jamie Wellnitz c9f8735bea [SCSI] lpfc 8.1.2: Misc FC Discovery changes :
Misc FC Discovery changes :
   - Added FC_BYPASSED_MODE statistic
   - Corrected some log message data
   - Fix up Discovery infrastructure to support FAN:
       Allow Fabric entities to flow thru DSM
       Fix up linkup/linkdown unregister login processing for Fabric entities
       Clean up Discovery code
       Utilize nodev_tmo for Fabric entities
   - Use of 3 * ratov for CT handling timeouts
   - Fix up DSM to make more appropriate decisions and clean up code.

Signed-off-by: Jamie Wellnitz <Jamie.Wellnitz@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2006-02-28 18:57:23 -06:00
Jamie Wellnitz 7bb3b137ab [SCSI] lpfc 8.1.2: Handling of ELS commands RRQ, RPS, RPL and LIRR correctly
Handling of ELS commands RRQ, RPS, RPL and LIRR correctly

Signed-off-by: Jamie Wellnitz <Jamie.Wellnitz@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2006-02-28 18:52:50 -06:00
Jamie Wellnitz 0c71fd9e43 [SCSI] lpfc 8.1.2: Remove unreferenced cfg_fcp_bind_method from struct lpfc_hba
Remove unreferenced cfg_fcp_bind_method from struct lpfc_hba

Signed-off-by: Jamie Wellnitz <Jamie.Wellnitz@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2006-02-28 18:51:19 -06:00
James.Smart@Emulex.Com 445cf4f4d2 [SCSI] lpfc 8.1.1 : Added code to adjust lun queue depth to avoid target overloading
Signed-off-by: James Smart <James.Smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-12-13 18:35:09 -07:00
James.Smart@Emulex.Com 875fbdfe9b [SCSI] lpfc 8.1.1 : Add polled-mode support
- Add functionality to run in polled mode only. Includes run time
  attribute to enable mode.
- Enable runtime writable hba settings for coallescing and delay parameters

Customers have requested a mode in the driver to run strictly polled.
This is generally to support an environment where the server is extremely
loaded and is looking to reclaim some cpu cycles from adapter interrupt
handling.

This patch adds a new "poll" attribute, and the following behavior:

if value is 0 (default):
  The driver uses the normal method for i/o completion. It uses the
  firmware feature of interrupt coalesing. The firmware allows a
  minimum number of i/o completions before an interrupt, or a maximum
  time delay between interrupts.  By default, the driver sets these
  to no delay (disabled) or 1 i/o - meaning coalescing is disabled.

  Attributes were provided to change the coalescing values, but it was
  a module-load time only and global across all adapters.
  This patch allows them to be writable on a per-adapter basis.

if value is 1 :
  Interrupts are left enabled, expecting that the user has tuned the
  interrupt coalescing values. When this setting is enabled, the driver
  will attempt to service completed i/o whenever new i/o is submitted
  to the adapter. If the coalescing values are large, and the i/o
  generation rate steady, an interrupt will be avoided by servicing
  completed i/o prior to the coalescing thresholds kicking in. However,
  if the i/o completion load is high enough or i/o generation slow, the
  coalescion values will ensure that completed i/o is serviced in a timely
  fashion.

if value is 3 :
  Turns off FCP i/o interrupts altogether. The coalescing values now have
  no effect. A new attribute "poll_tmo" (default 10ms) exists to set
  the polling interval for i/o completion. When this setting is enabled,
  the driver will attempt to service completed i/o and restart the
  interval timer whenever new i/o is submitted. This behavior allows for
  servicing of completed i/o sooner than the interval timer, but ensures
  that if no i/o is being issued, then the interval timer will kick in
  to service the outstanding i/o.

Signed-off-by: James Smart <James.Smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-12-13 18:34:14 -07:00
James.Smart@Emulex.Com 6175c02a0b [SCSI] lpfc 8.1.1 : Fixes to error handlers
- Release task management command before counting outstanding commands.
  TMF was being erroneously counted as an active outstanding command.
- Serialize EH calls and block requests when EH function is running.

Signed-off-by: James Smart <James.Smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-12-13 18:26:47 -07:00
James.Smart@Emulex.Com 21568f5387 [SCSI] lpfc: Remove RPI hash from the driver
Table was not providing a lot of value and injected a couple of
errors. Removed it and made functionality inline.

Signed-off-by: James Smart <James.Smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-10-29 10:22:50 -05:00
James.Smart@Emulex.Com f888ba3ce7 [SCSI] lpfc driver 8.0.30 : fix get_stats panic
Fix panic in lpfc_get_stats()

Symptoms: Panic on sysfs stats access

Cause: In lpfc_get_stats() we are writing to memory that we do not
own.

Fix: Fix our stats structure allocation. Embed phba->link_stats in
struct lpfc_hba and stop treating it like rogue structure.

Note: Embedding midlayer/transport structure in our structure caused
need for more files to include midlayer/transport headers.

Signed-off-by: James Smart <James.Smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-08-12 12:08:48 -05:00
James.Smart@Emulex.Com c44ce17374 [SCSI] lpfc: Update copyright notices
Update copyright notice text and include year 2005.

Add Copyright notice for Christoph Hellwig to several files: lpfc.h
lpfc_attr.c lpfc_els.c lpfc_hbadisc.c lpfc_init.c lpfc_mbox.c
lpfc_mem.c lpfc_nportdisc.c lpfc_scsi.c lpfc_sli.c

Signed-off-by: James Smart <James.Smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-07-02 19:08:29 -05:00
James.Smart@Emulex.Com 5542134f61 [SCSI] lpfc: Remove $Id$ keyword strings.
Signed-off-by: James Smart <James.Smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-07-02 19:06:16 -05:00
dea3101e0a lpfc: add Emulex FC driver version 8.0.28
From: 	James.Smart@Emulex.Com

Modified for kernel import and
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-04-18 13:50:53 -05:00