[SCSI] mpt2sas v00.100.11.15

* This is new scsi lld device driver from LSI supporting the SAS 2.0
  standard. I have split patchs by filename.

* Here is list of new 6gb host controllers:

  LSI SAS2004
  LSI SAS2008
  LSI SAS2108
  LSI SAS2116

* Here are the changes in the 4th posting of this patch set:

(1) fix compile errors when SCSI_MPT2SAS_LOGGING is not enabled
(2) add mpt2sas to the SCSI Mid Layer Makefile
(3) append mpt2sas_ to the naming of all non-static functions
(4) fix oops for SMP_PASSTHRU
(5) doorbell algorithm imported changes from windows driver

* Here are the changes in the 3rd posting of this patch set:

(1) add readl following writel from the function that disables interrupts
(2) replace 0xFFFFFFFFFFFFFFFFULL with ~0ULL
(3) when calling pci_enable_msix, only pass one msix entry (instead of 15).
(4) remove the "current HW implementation uses..... " comment in the sources
(5) merged bug fix for SIGIO/POLLIN notifcation; reported by the storlib team.

* Here are the changes in the 2nd posting of this patch set:

(1) use little endian types in the mpi headers
(2) merged in bug fix's from inhouse drivers.

Signed-off-by: Eric Moore <eric.moore@lsi.com>
Tested-by: peter Bogdanovic <pbog@us.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

1 files changed, 181 insertions, 0 deletions

diff --git a/drivers/scsi/mpt2sas/mpt2sas_debug.h b/drivers/scsi/mpt2sas/mpt2sas_debug.h
new file mode 100644
index 000000000000..ad325096e842
--- /dev/null
+++ b/drivers/scsi/mpt2sas/mpt2sas_debug.h
@@ -0,0 +1,181 @@
+/*
+ * Logging Support for MPT (Message Passing Technology) based controllers
+ *
+ * This code is based on drivers/scsi/mpt2sas/mpt2_debug.c
+ * Copyright (C) 2007-2008  LSI Corporation
+ *  (mailto:DL-MPTFusionLinux@lsi.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.
+ *
+ * NO WARRANTY
+ * THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR
+ * CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT
+ * LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
+ * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is
+ * solely responsible for determining the appropriateness of using and
+ * distributing the Program and assumes all risks associated with its
+ * exercise of rights under this Agreement, including but not limited to
+ * the risks and costs of program errors, damage to or loss of data,
+ * programs or equipment, and unavailability or interruption of operations.
+
+ * DISCLAIMER OF LIABILITY
+ * NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
+ * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
+ * USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED
+ * HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES
+
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301,
+ * USA.
+ */
+
+#ifndef MPT2SAS_DEBUG_H_INCLUDED
+#define MPT2SAS_DEBUG_H_INCLUDED
+
+#define MPT_DEBUG                       0x00000001
+#define MPT_DEBUG_MSG_FRAME             0x00000002
+#define MPT_DEBUG_SG                    0x00000004
+#define MPT_DEBUG_EVENTS                0x00000008
+#define MPT_DEBUG_EVENT_WORK_TASK       0x00000010
+#define MPT_DEBUG_INIT                  0x00000020
+#define MPT_DEBUG_EXIT                  0x00000040
+#define MPT_DEBUG_FAIL                  0x00000080
+#define MPT_DEBUG_TM                    0x00000100
+#define MPT_DEBUG_REPLY                 0x00000200
+#define MPT_DEBUG_HANDSHAKE             0x00000400
+#define MPT_DEBUG_CONFIG                0x00000800
+#define MPT_DEBUG_DL                    0x00001000
+#define MPT_DEBUG_RESET                 0x00002000
+#define MPT_DEBUG_SCSI                  0x00004000
+#define MPT_DEBUG_IOCTL                 0x00008000
+#define MPT_DEBUG_CSMISAS               0x00010000
+#define MPT_DEBUG_SAS                   0x00020000
+#define MPT_DEBUG_TRANSPORT             0x00040000
+#define MPT_DEBUG_TASK_SET_FULL         0x00080000
+
+#define MPT_DEBUG_TARGET_MODE           0x00100000
+
+
+/*
+ * CONFIG_SCSI_MPT2SAS_LOGGING - enabled in Kconfig
+ */
+
+#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
+#define MPT_CHECK_LOGGING(IOC, CMD, BITS)                       \
+{                                                               \
+        if (IOC->logging_level & BITS)                          \
+                CMD;                                            \
+}
+#else
+#define MPT_CHECK_LOGGING(IOC, CMD, BITS)
+#endif /* CONFIG_SCSI_MPT2SAS_LOGGING */
+
+
+/*
+ * debug macros
+ */
+
+#define dprintk(IOC, CMD)                       \
+        MPT_CHECK_LOGGING(IOC, CMD, MPT_DEBUG)
+
+#define dsgprintk(IOC, CMD)                     \
+        MPT_CHECK_LOGGING(IOC, CMD, MPT_DEBUG_SG)
+
+#define devtprintk(IOC, CMD)                    \
+        MPT_CHECK_LOGGING(IOC, CMD, MPT_DEBUG_EVENTS)
+
+#define dewtprintk(IOC, CMD)            \
+        MPT_CHECK_LOGGING(IOC, CMD, MPT_DEBUG_EVENT_WORK_TASK)
+
+#define dinitprintk(IOC, CMD)                   \
+        MPT_CHECK_LOGGING(IOC, CMD, MPT_DEBUG_INIT)
+
+#define dexitprintk(IOC, CMD)                   \
+        MPT_CHECK_LOGGING(IOC, CMD, MPT_DEBUG_EXIT)
+
+#define dfailprintk(IOC, CMD)                   \
+        MPT_CHECK_LOGGING(IOC, CMD, MPT_DEBUG_FAIL)
+
+#define dtmprintk(IOC, CMD)                     \
+        MPT_CHECK_LOGGING(IOC, CMD, MPT_DEBUG_TM)
+
+#define dreplyprintk(IOC, CMD)                  \
+        MPT_CHECK_LOGGING(IOC, CMD, MPT_DEBUG_REPLY)
+
+#define dhsprintk(IOC, CMD)                     \
+        MPT_CHECK_LOGGING(IOC, CMD, MPT_DEBUG_HANDSHAKE)
+
+#define dcprintk(IOC, CMD)                      \
+        MPT_CHECK_LOGGING(IOC, CMD, MPT_DEBUG_CONFIG)
+
+#define ddlprintk(IOC, CMD)                     \
+        MPT_CHECK_LOGGING(IOC, CMD, MPT_DEBUG_DL)
+
+#define drsprintk(IOC, CMD)                     \
+        MPT_CHECK_LOGGING(IOC, CMD, MPT_DEBUG_RESET)
+
+#define dsprintk(IOC, CMD)                      \
+        MPT_CHECK_LOGGING(IOC, CMD, MPT_DEBUG_SCSI)
+
+#define dctlprintk(IOC, CMD)                    \
+        MPT_CHECK_LOGGING(IOC, CMD, MPT_DEBUG_IOCTL)
+
+#define dcsmisasprintk(IOC, CMD)                \
+        MPT_CHECK_LOGGING(IOC, CMD, MPT_DEBUG_CSMISAS)
+
+#define dsasprintk(IOC, CMD)                    \
+        MPT_CHECK_LOGGING(IOC, CMD, MPT_DEBUG_SAS)
+
+#define dsastransport(IOC, CMD)         \
+        MPT_CHECK_LOGGING(IOC, CMD, MPT_DEBUG_SAS_WIDE)
+
+#define dmfprintk(IOC, CMD)                     \
+        MPT_CHECK_LOGGING(IOC, CMD, MPT_DEBUG_MSG_FRAME)
+
+#define dtsfprintk(IOC, CMD)                    \
+        MPT_CHECK_LOGGING(IOC, CMD, MPT_DEBUG_TASK_SET_FULL)
+
+#define dtransportprintk(IOC, CMD)                      \
+        MPT_CHECK_LOGGING(IOC, CMD, MPT_DEBUG_TRANSPORT)
+
+#define dTMprintk(IOC, CMD)                     \
+        MPT_CHECK_LOGGING(IOC, CMD, MPT_DEBUG_TARGET_MODE)
+
+/* inline functions for dumping debug data*/
+#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
+/**
+ * _debug_dump_mf - print message frame contents
+ * @mpi_request: pointer to message frame
+ * @sz: number of dwords
+ */
+static inline void
+_debug_dump_mf(void *mpi_request, int sz)
+{
+        int i;
+        u32 *mfp = (u32 *)mpi_request;
+
+        printk(KERN_INFO "mf:\n\t");
+        for (i = 0; i < sz; i++) {
+                if (i && ((i % 8) == 0))
+                        printk("\n\t");
+                printk("%08x ", le32_to_cpu(mfp[i]));
+        }
+        printk("\n");
+}
+#else
+#define _debug_dump_mf(mpi_request, sz)
+#endif /* CONFIG_SCSI_MPT2SAS_LOGGING */
+
+#endif /* MPT2SAS_DEBUG_H_INCLUDED */