Merge master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6

* master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6: (32 commits)
  [SCSI] aacraid: prevent panic on adapter resource failure
  [SCSI] aha152x: use data accessors and !use_sg cleanup
  [SCSI] aha152x: Fix check_condition code-path
  [SCSI] aha152x: Clean Reset path
  [SCSI] aha152x: preliminary fixes and some comments
  [SCSI] aha152x: use bounce buffer
  [SCSI] aha152x: fix debug mode symbol conflict
  [SCSI] sd: disentangle barriers in SCSI
  [SCSI] lpfc : scsi command accessor fix for 8.2.2
  [SCSI] qlogicpti: Some cosmetic changes
  [SCSI] lpfc 8.2.2 : Change version number to 8.2.2
  [SCSI] lpfc 8.2.2 : Style cleanups
  [SCSI] lpfc 8.2.2 : Miscellaneous Bug Fixes
  [SCSI] lpfc 8.2.2 : Miscellaneous management and logging mods
  [SCSI] lpfc 8.2.2 : Rework the lpfc_printf_log() macro
  [SCSI] lpfc 8.2.2 : Attribute and Parameter splits for vport and physical port
  [SCSI] lpfc 8.2.2 : Fix locking around HBA's port_list
  [SCSI] lpfc 8.2.2 : Error messages and debugfs updates
  [SCSI] initialize shost_data to zero
  [SCSI] mptsas: add SMP passthrough support via bsg
  ...

46 files changed, 2837 insertions, 2050 deletions

diff --git a/block/bsg.c b/block/bsg.c
index d60eee549405..ed2646827234 100644
--- a/block/bsg.c
+++ b/block/bsg.c
@@ -1,5 +1,5 @@
 /*
- * bsg.c - block layer implementation of the sg v3 interface
+ * bsg.c - block layer implementation of the sg v4 interface
  *
  * Copyright (C) 2004 Jens Axboe <axboe@suse.de> SUSE Labs
  * Copyright (C) 2004 Peter M. Jones <pjones@redhat.com>
@@ -421,7 +421,6 @@ static int blk_complete_sgv4_hdr_rq(struct request *rq, struct sg_io_v4 *hdr,
         hdr->info = 0;
         if (hdr->device_status || hdr->transport_status || hdr->driver_status)
                 hdr->info |= SG_INFO_CHECK;
-        hdr->din_resid = rq->data_len;
         hdr->response_len = 0;
 
         if (rq->sense_len && hdr->response) {
@@ -437,9 +436,14 @@ static int blk_complete_sgv4_hdr_rq(struct request *rq, struct sg_io_v4 *hdr,
         }
 
         if (rq->next_rq) {
+                hdr->dout_resid = rq->data_len;
+                hdr->din_resid = rq->next_rq->data_len;
                 blk_rq_unmap_user(bidi_bio);
                 blk_put_request(rq->next_rq);
-        }
+        } else if (rq_data_dir(rq) == READ)
+                hdr->din_resid = rq->data_len;
+        else
+                hdr->dout_resid = rq->data_len;
 
         blk_rq_unmap_user(bio);
         blk_put_request(rq);
diff --git a/drivers/message/fusion/mptbase.c b/drivers/message/fusion/mptbase.c
index e866dacde7e5..414c109f4cf5 100644
--- a/drivers/message/fusion/mptbase.c
+++ b/drivers/message/fusion/mptbase.c
@@ -88,7 +88,9 @@ module_param(mpt_channel_mapping, int, 0);
 MODULE_PARM_DESC(mpt_channel_mapping, " Mapping id's to channels (default=0)");
 
 static int mpt_debug_level;
-module_param(mpt_debug_level, int, 0);
+static int mpt_set_debug_level(const char *val, struct kernel_param *kp);
+module_param_call(mpt_debug_level, mpt_set_debug_level, param_get_int,
+                  &mpt_debug_level, 0600);
 MODULE_PARM_DESC(mpt_debug_level, " debug level - refer to mptdebug.h - (default=0)");
 
 #ifdef MFCNT
@@ -220,6 +222,19 @@ pci_enable_io_access(struct pci_dev *pdev)
         pci_write_config_word(pdev, PCI_COMMAND, command_reg);
 }
 
+static int mpt_set_debug_level(const char *val, struct kernel_param *kp)
+{
+        int ret = param_set_int(val, kp);
+        MPT_ADAPTER *ioc;
+
+        if (ret)
+                return ret;
+
+        list_for_each_entry(ioc, &ioc_list, list)
+                ioc->debug_level = mpt_debug_level;
+        return 0;
+}
+
 /*
  *  Process turbo (context) reply...
  */
diff --git a/drivers/message/fusion/mptsas.c b/drivers/message/fusion/mptsas.c
index 29add83da588..b9c69bff218c 100644
--- a/drivers/message/fusion/mptsas.c
+++ b/drivers/message/fusion/mptsas.c
@@ -1312,11 +1312,137 @@ mptsas_get_bay_identifier(struct sas_rphy *rphy)
         return rc;
 }
 
+static int mptsas_smp_handler(struct Scsi_Host *shost, struct sas_rphy *rphy,
+                              struct request *req)
+{
+        MPT_ADAPTER *ioc = ((MPT_SCSI_HOST *) shost->hostdata)->ioc;
+        MPT_FRAME_HDR *mf;
+        SmpPassthroughRequest_t *smpreq;
+        struct request *rsp = req->next_rq;
+        int ret;
+        int flagsLength;
+        unsigned long timeleft;
+        char *psge;
+        dma_addr_t dma_addr_in = 0;
+        dma_addr_t dma_addr_out = 0;
+        u64 sas_address = 0;
+
+        if (!rsp) {
+                printk(KERN_ERR "%s: the smp response space is missing\n",
+                       __FUNCTION__);
+                return -EINVAL;
+        }
+
+        /* do we need to support multiple segments? */
+        if (req->bio->bi_vcnt > 1 || rsp->bio->bi_vcnt > 1) {
+                printk(KERN_ERR "%s: multiple segments req %u %u, rsp %u %u\n",
+                       __FUNCTION__, req->bio->bi_vcnt, req->data_len,
+                       rsp->bio->bi_vcnt, rsp->data_len);
+                return -EINVAL;
+        }
+
+        ret = mutex_lock_interruptible(&ioc->sas_mgmt.mutex);
+        if (ret)
+                goto out;
+
+        mf = mpt_get_msg_frame(mptsasMgmtCtx, ioc);
+        if (!mf) {
+