This patch removes unused functions, data strucutres, and definitions.  It
also includes misc comment and formatting cleanups.
Signed-off-by: NJing Huang <huangj@brocade.com>
Signed-off-by: NJames Bottomley <James.Bottomley@suse.de>

This patch removes some inactive functions and macros.
Signed-off-by: NJing Huang <huangj@brocade.com>
Signed-off-by: NJames Bottomley <James.Bottomley@suse.de>

Signed-off-by: NJing Huang <huangj@brocade.com>
Signed-off-by: NJames Bottomley <James.Bottomley@suse.de>

Signed-off-by: NKrishna Gudipati <kgudipat@brocade.com>
Signed-off-by: NJames Bottomley <James.Bottomley@suse.de>

Fix iotag handling:

1) Update and check io tag for retry case.
2) Clearing upper 3 bits in io tag when an IO completes.
   The 3 upper bits in io tags are used for counting FCP exchange retry.
   Un-cleared bits will cause firmware to access invalid memory when the
   same io tag is used for an IO to a target that doesn't support FCP
   exchange retry.
3) Only check the effective bits when validating an iotag.

Other minor fixes:

1) Added trace to get FC header type with assert of unhandled packet received.
   Ignore the type FC_TYPE_FC_FSS (FC_XS).
2) Fixed the adapter info display check - to check for fcmode flag even.
Signed-off-by: NKrishna Gudipati <kgudipat@brocade.com>
Signed-off-by: NJames Bottomley <James.Bottomley@suse.de>

- Direct attach is not working due to the check of PID in fcxp_send request.
- Added logic to set the lps->lp_pid with the PID assigned for n2n mode.
Signed-off-by: NKrishna Gudipati <kgudipat@brocade.com>
Signed-off-by: NJames Bottomley <James.Bottomley@suse.de>

- Made IOC auto_recovery synchronized and not timer based.
- Only one PCI function will attempt to recover and reinitialize
  the ASIC on a failure, after all the active PCI fns
  acknowledge the IOC failure.
Signed-off-by: NKrishna Gudipati <kgudipat@brocade.com>
Signed-off-by: NJames Bottomley <James.Bottomley@suse.de>

When the bfa driver is loaded a flogi is sent without the knowledge of
trunking configuration. This normal flogi causes the switch ports
which had trunking enabled to go to persistent offline.  Solution is
to store the port configuration (which has trunking info) in the flash
for persistency. The firmware will read this configuration when the
very first fcport enable is received.
Signed-off-by: NKrishna Gudipati <kgudipat@brocade.com>
Signed-off-by: NJames Bottomley <James.Bottomley@suse.de>

- Move fw trace save logic to bfa_ioc_sm_fail_entry(),
  so that fw trace is saved irrespective of the cause of the failure.
- Make bfa_ioc_sm_fail() a failure parking state.
- Rename bfa_ioc_sm_initfail() to a more appropriate bfa_ioc_sm_fail_retry()
  as it is no longer a parking state.
Signed-off-by: NKrishna Gudipati <kgudipat@brocade.com>
Signed-off-by: NJames Bottomley <James.Bottomley@suse.de>

Remove unused functions and fix checkpatch errors. Misc cleanups in
comment and formatting.
Signed-off-by: NMaggie Zhang <xmzhang@brocade.com>
Signed-off-by: NJing Huang <huangj@brocade.com>
Signed-off-by: NJames Bottomley <James.Bottomley@suse.de>

Remove OS wrapper functions/macros, and as a result remove bfa_os_inc.h.
Signed-off-by: NMaggie Zhang <xmzhang@brocade.com>
Signed-off-by: NJing Huang <huangj@brocade.com>
Signed-off-by: NJames Bottomley <James.Bottomley@suse.de>

Remove SCSI IO callbacks, and as a result remove bfa_cb_ioim.h.
Signed-off-by: NMaggie Zhang <xmzhang@brocade.com>
Signed-off-by: NJing Huang <huangj@brocade.com>
Signed-off-by: NJames Bottomley <James.Bottomley@suse.de>

Modified scatter gather processing to use the kernel provided
scsi_for_each_sg() macro.

1) Instead of allocating and setting up sgpg in bfa_ioim_sge_setup(),
   we only do allocation.  As a result, we remove
   bfa_ioim_sgpg_setup() and rename bfa_ioim_sge_setup() to
   bfa_ioim_sgpg_alloc().

2) bfa_ioim_send_ioreq() call scsi_for_each_sg() to handle both inline
   and sgpg setup.
Signed-off-by: NMaggie Zhang <xmzhang@brocade.com>
Signed-off-by: NJing Huang <huangj@brocade.com>
Signed-off-by: NJames Bottomley <James.Bottomley@suse.de>

Removed bfa_drv.c, merged it to bfa_core.c and modified Makefile.
Signed-off-by: NMaggie Zhang <xmzhang@brocade.com>
Signed-off-by: NJing Huang <huangj@brocade.com>
Signed-off-by: NJames Bottomley <James.Bottomley@suse.de>

Cleaned up one line functions.
Signed-off-by: NMaggie Zhang <xmzhang@brocade.com>
Signed-off-by: NJing Huang <huangj@brocade.com>
Signed-off-by: NJames Bottomley <James.Bottomley@suse.de>

Removed unused and empty functions.
Signed-off-by: NMaggie Zhang <xmzhang@brocade.com>
Signed-off-by: NJing Huang <xmzhang@brocade.com>
Signed-off-by: NJames Bottomley <James.Bottomley@suse.de>

First round of fix for the endianess check warnings from make C=2 CF="-D__CHECK_ENDIAN__".
Signed-off-by: NMaggie <xmzhang@brocade.com>
Signed-off-by: NJames Bottomley <James.Bottomley@suse.de>

Fix all sparse check warnings from make C=2.
Signed-off-by: NMaggie <xmzhang@brocade.com>
Signed-off-by: NJames Bottomley <James.Bottomley@suse.de>

Rename log_level to bfa_log_level to make the global variable more bfa
specific and avoid clashes with other drivers which was causing a
build failure.
Signed-off-by: NJing Huang <huangj@brocade.com>
Signed-off-by: NJames Bottomley <James.Bottomley@suse.de>

Move the mid-layer's ->queuecommand() invocation from being locked
with the host lock to being unlocked to facilitate speeding up the
critical path for drivers who don't need this lock taken anyway.

The patch below presents a simple SCSI host lock push-down as an
equivalent transformation.  No locking or other behavior should change
with this patch.  All existing bugs and locking orders are preserved.

Additionally, add one parameter to queuecommand,
	struct Scsi_Host *
and remove one parameter from queuecommand,
	void (*done)(struct scsi_cmnd *)

Scsi_Host* is a convenient pointer that most host drivers need anyway,
and 'done' is redundant to struct scsi_cmnd->scsi_done.

Minimal code disturbance was attempted with this change.  Most drivers
needed only two one-line modifications for their host lock push-down.
Signed-off-by: NJeff Garzik <jgarzik@redhat.com>
Acked-by: NJames Bottomley <James.Bottomley@suse.de>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

This patch addresses the comments from Randy Dunlap (Randy.Dunlap@oracle.com)
regarding comment blocks that begining with "/**". bfa driver comments
currently do not follow kernel-doc convention, we hence replace all
/** with /* and **/ with */.
Signed-off-by: NJing Huang <huangj@brocade.com>
Signed-off-by: NJames Bottomley <James.Bottomley@suse.de>

This patch addresses the comments from Randy Dunlap (Randy.Dunlap@oracle.com)
regarding comment blocks that begining with "/**". bfa driver comments
currently do not follow kernel-doc convention, we hence replace all
/** with /* and **/ with */.
Signed-off-by: NJing Huang <huangj@brocade.com>
Signed-off-by: NJames Bottomley <James.Bottomley@suse.de>

Fix compile warning for frame size over 1024 in gcc 4.4.
Signed-off-by: NJing Huang <huangj@brocade.com>
Signed-off-by: NJames Bottomley <James.Bottomley@suse.de>

This patch replaces register access functions and macros with the the ones
provided by linux.
Signed-off-by: NJing Huang <huangj@brocade.com>
Signed-off-by: NJames Bottomley <James.Bottomley@suse.de>

Signed-off-by: NJing Huang <huangj@brocade.com>
Signed-off-by: NJames Bottomley <James.Bottomley@suse.de>

This patch removes os wrapper and unused functions.
bfa_os_assign(), bfa_os_memset(), bfa_os_memcpy(), bfa_os_udelay()
bfa_os_vsprintf(), bfa_os_snprintf(), and bfa_os_get_clock() are replaced with
direct assignment or native linux functions. Some unused functions related to VF
(Vitual fabric) are also removed.
Signed-off-by: NJing Huang <huangj@brocade.com>
Signed-off-by: NJames Bottomley <James.Bottomley@suse.de>

We have flattened the BFA hierarchy and also reduced the number of
source and header files we used to have earlier.
Signed-off-by: NKrishna Gudipati <kgudipat@brocade.com>
Signed-off-by: NJames Bottomley <James.Bottomley@suse.de>

A couple of scsi drivers define a BIT() macro, duplicating the one in
bitops.h.

Cc: Jing Huang <huangj@brocade.com>
Cc: Robert Love <robert.w.love@intel.com>
Cc: James Bottomley <James.Bottomley@HansenPartnership.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

It appears that the wrong fcport H2I message was tested
Signed-off-by: NRoel Kluin <roel.kluin@gmail.com>
Acked-by: NJing Huang <huangj@Brocade.COM>
Cc: James Bottomley <James.Bottomley@HansenPartnership.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Use DECLARE_WAIT_QUEUE_HEAD_ONSTACK to make lockdep happy
Signed-off-by: NYong Zhang <yong.zhang0@gmail.com>
Cc: Jing Huang <huangj@brocade.com>
Cc: James E.J. Bottomley <James.Bottomley@suse.de>
Cc: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Since the writing to sysfs can free the old one, we need to block that
when we access the charp variables.
Signed-off-by: NRusty Russell <rusty@rustcorp.com.au>
Reviewed-by: NTakashi Iwai <tiwai@suse.de>
Tested-by: NPhil Carmody <ext-phil.2.carmody@nokia.com>
Cc: Jeff Dike <jdike@addtoit.com>
Cc: Dan Williams <dcbw@redhat.com>
Cc: John W. Linville <linville@tuxdriver.com>
Cc: Jing Huang <huangj@brocade.com>
Cc: James E.J. Bottomley <James.Bottomley@suse.de>
Cc: Greg Kroah-Hartman <gregkh@suse.de>
Cc: Johannes Berg <johannes@sipsolutions.net>
Cc: David S. Miller <davem@davemloft.net>
Cc: user-mode-linux-devel@lists.sourceforge.net
Cc: libertas-dev@lists.infradead.org
Cc: linux-wireless@vger.kernel.org
Cc: netdev@vger.kernel.org
Cc: linux-scsi@vger.kernel.org
Cc: linux-usb@vger.kernel.org

- Add debugfs support to obtain firmware trace, driver trace
  and read/write to registers.

- debugfs hierarchy:
  /sys/kernel/debug/bfa/host#
   where the host number corresponds to the one under /sys/class/scsi_host/host#

- Following are the new debugfs entries added:
  drvtrc: collect current driver trace
  fwtrc: collect current firmware trace.
  fwsave: collect last saved fw trace as a result of firmware crash.
  regwr: write one word to chip register
  regrd: read one or more words from chip register.
Signed-off-by: NJing Huang <huangj@brocade.com>
Signed-off-by: NJames Bottomley <James.Bottomley@suse.de>

Update driver version to 2.2.2.1
Signed-off-by: NJing Huang <huangj@brocade.com>
Signed-off-by: NJames Bottomley <James.Bottomley@suse.de>

This patch fixes 3 bugs in vport create/delete.
1) Replace scsi_add_host() with scsi_add_host_with_dma()
2) Fix rmmod hang when there are vports configured. This is due to a race
condition between the workqueue destroy in pci remove context and the vport
delete works being handled. The fix is to use a counter to track the
vport delete work, so that workqueue destroy will not be called until all
configured vports are deleted from workqueue.
3) Fix rmmmod crash when there are PBC vport configured. PBC is not allowed
to be deleted dynamically. However, if someone try to delete it, it leaves the
vport is wrong state. The fix is to restore the vport back to original state
when the attempt to delete pbc vport delete is failed.
Signed-off-by: NJing Huang <huangj@brocade.com>
Signed-off-by: NJames Bottomley <James.Bottomley@suse.de>

This patch fixes the issue of passing wrong argument to callback function.
Signed-off-by: NJing Huang <huangj@brocade.com>
Signed-off-by: NJames Bottomley <James.Bottomley@suse.de>

This patch adds ioc state checking while enabling a port.
Signed-off-by: NJing Huang <huangj@brocade.com>
Signed-off-by: NJames Bottomley <James.Bottomley@suse.de>

Add description for bfa driver module parameters.
Signed-off-by: NJing Huang <huangj@brocade.com>
Signed-off-by: NJames Bottomley <James.Bottomley@suse.de>

Update bfa driver API and data structure to support BOFM (IBM BladeCenter
Open Fabric Manager).
Signed-off-by: NJing Huang <huangj@brocade.com>
Signed-off-by: NJames Bottomley <James.Bottomley@suse.de>

While processing the ioim in callback functions, the ioim is still in io_q.
During this time, if the itnim goes offline, the ioim is requeued from
itnim->io_q into itnim->delay_comp_q although the request is already completed.
This results in requeing the ioim into the callback queue if the ioim is not
freed by the time the ioim is requeued. This results in double completion of
the ioim. To fix this, whenever a response is received from firmware for an
ioim, deque it from io_q and enque to fcpim->comp_q. This will eliminate any
possibility of itnim picking any ioim for which the response is already
received.
Signed-off-by: NJing Huang <huangj@brocade.com>
Signed-off-by: NJames Bottomley <James.Bottomley@suse.de>

When the FCoE Linkup event is sent to the host, the link_state
(struct bfa_pport_link_s) structure is copied to the RME buf to be sent to
the host. But the size of this structure(164 bytes) is larger than the
reserved RME buffer size(128 byes). The following changes reduce the size
of the structure to be less than RME buffer size(128 bytes):
- Remove the trunk and loop info from link_state structure, because both trunk
  and loop are not supported.
- Combine qos_vc_attr and fcf into an union.
Signed-off-by: NJing Huang <huangj@brocade.com>
Signed-off-by: NJames Bottomley <James.Bottomley@suse.de>