lpfc: add Emulex FC driver version 8.0.28

From: 	[email protected]

Modified for kernel import and
Signed-off-by: James Bottomley <[email protected]>

Documentation/scsi/lpfc.txt

@@ -0,0 +1,83 @@
+
+LPFC Driver Release Notes:
+
+=============================================================================
+
+
+                               IMPORTANT:
+
+  Starting in the 8.0.17 release, the driver began to be targeted strictly
+  toward the upstream kernel. As such, we removed #ifdefs for older kernels
+  (pre 2.6.10). The 8.0.16 release should be used if the driver is to be
+  run on one of the older kernels.
+
+  The proposed modifications to the transport layer for FC remote ports
+  and extended attribute support is now part of the upstream kernel
+  as of 2.6.12. We no longer need to provide patches for this support,
+  nor a *full* version which has old an new kernel support.
+
+  The driver now requires a 2.6.12 (if pre-release, 2.6.12-rc1) or later
+  kernel.
+
+  Please heed these dependencies....
+
+
+   ********************************************************************
+
+
+The following information is provided for additional background on the
+history of the driver as we push for upstream acceptance.
+
+Cable pull and temporary device Loss:
+
+  In older revisions of the lpfc driver, the driver internally queued i/o 
+  received from the midlayer. In the cases where a cable was pulled, link
+  jitter, or a device temporarily loses connectivity (due to its cable
+  being removed, a switch rebooting, or a device reboot), the driver could
+  hide the disappearance of the device from the midlayer. I/O's issued to
+  the LLDD would simply be queued for a short duration, allowing the device
+  to reappear or link come back alive, with no inadvertant side effects
+  to the system. If the driver did not hide these conditions, i/o would be
+  errored by the driver, the mid-layer would exhaust its retries, and the
+  device would be taken offline. Manual intervention would be required to
+  re-enable the device.
+
+  The community supporting kernel.org has driven an effort to remove
+  internal queuing from all LLDDs. The philosophy is that internal
+  queuing is unnecessary as the block layer already performs the 
+  queuing. Removing the queues from the LLDD makes a more predictable
+  and more simple LLDD.
+
+  As a potential new addition to kernel.org, the 8.x driver was asked to
+  have all internal queuing removed. Emulex complied with this request.
+  In explaining the impacts of this change, Emulex has worked with the
+  community in modifying the behavior of the SCSI midlayer so that SCSI
+  devices can be temporarily suspended while transport events (such as
+  those described) can occur.  
+
+  The proposed patch was posted to the linux-scsi mailing list. The patch
+  is contained in the 2.6.10-rc2 (and later) patch kits. As such, this
+  patch is part of the standard 2.6.10 kernel.
+
+  By default, the driver expects the patches for block/unblock interfaces
+  to be present in the kernel. No #define needs to be set to enable support.
+
+
+Kernel Support
+
+  This source package is targeted for the upstream kernel only. (See notes
+  at the top of this file). It relies on interfaces that are slowing
+  migrating into the kernel.org kernel.
+
+  At this time, the driver requires the 2.6.12 (if pre-release, 2.6.12-rc1)
+  kernel.
+
+  If a driver is needed for older kernels please utilize the 8.0.16
+  driver sources.
+
+
+Patches
+
+  Thankfully, at this time, patches are not needed.
+
+

drivers/scsi/Kconfig

@@ -1314,6 +1314,14 @@ config SCSI_QLOGICPTI
 
 source "drivers/scsi/qla2xxx/Kconfig"
 
+config SCSI_LPFC
+	tristate "Emulex LightPulse Fibre Channel Support"
+	depends on PCI && SCSI
+	select SCSI_FC_ATTRS
+	help
+          This lpfc driver supports the Emulex LightPulse
+          Family of Fibre Channel PCI host adapters.
+
 config SCSI_SEAGATE
 	tristate "Seagate ST-02 and Future Domain TMC-8xx SCSI support"
 	depends on X86 && ISA && SCSI && BROKEN

drivers/scsi/Makefile

@@ -80,6 +80,7 @@ obj-$(CONFIG_SCSI_QLOGIC_ISP)	+= qlogicisp.o
 obj-$(CONFIG_SCSI_QLOGIC_FC)	+= qlogicfc.o 
 obj-$(CONFIG_SCSI_QLOGIC_1280)	+= qla1280.o 
 obj-$(CONFIG_SCSI_QLA2XXX)	+= qla2xxx/
+obj-$(CONFIG_SCSI_LPFC)		+= lpfc/
 obj-$(CONFIG_SCSI_PAS16)	+= pas16.o
 obj-$(CONFIG_SCSI_SEAGATE)	+= seagate.o
 obj-$(CONFIG_SCSI_FD_8xx)	+= seagate.o

drivers/scsi/lpfc/Makefile

@@ -0,0 +1,32 @@
+#/*******************************************************************
+# * This file is part of the Emulex Linux Device Driver for         *
+# * Enterprise Fibre Channel Host Bus Adapters.                     *
+# * Refer to the README file included with this package for         *
+# * driver version and adapter support.                             *
+# * Copyright (C) 2004 Emulex Corporation.                          *
+# * www.emulex.com                                                  *
+# *                                                                 *
+# * This program is free software; you can redistribute it and/or   *
+# * modify it under the terms of the GNU General Public License     *
+# * as published by the Free Software Foundation; either version 2  *
+# * of the License, or (at your option) any later version.          *
+# *                                                                 *
+# * This program is distributed in the hope that it will be useful, *
+# * but WITHOUT ANY WARRANTY; without even the implied warranty of  *
+# * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the   *
+# * GNU General Public License for more details, a copy of which    *
+# * can be found in the file COPYING included with this package.    *
+# *******************************************************************/
+######################################################################
+
+#$Id: Makefile 1.58 2005/01/23 19:00:32EST sf_support Exp  $
+
+ifneq ($(GCOV),)
+  EXTRA_CFLAGS += -fprofile-arcs -ftest-coverage
+  EXTRA_CFLAGS += -O0
+endif
+
+obj-$(CONFIG_SCSI_LPFC) := lpfc.o
+
+lpfc-objs := lpfc_mem.o lpfc_sli.o lpfc_ct.o lpfc_els.o lpfc_hbadisc.o	\
+	lpfc_init.o lpfc_mbox.o lpfc_nportdisc.o lpfc_scsi.o lpfc_attr.o