[SCSI] mpt2sas: Fix for little endian

1. Fixes for little endian issues.
2. Now Debug info for Discovery event is more readable.

Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>

5 files changed, 46 insertions, 26 deletions

diff --git a/drivers/scsi/mpt2sas/mpt2sas_base.c b/drivers/scsi/mpt2sas/mpt2sas_base.c
index b7b6285a3061..6f786349679f 100644
--- a/drivers/scsi/mpt2sas/mpt2sas_base.c
+++ b/drivers/scsi/mpt2sas/mpt2sas_base.c
@@ -285,6 +285,9 @@ _base_sas_ioc_info(struct MPT2SAS_ADAPTER *ioc, MPI2DefaultReply_t *mpi_reply,
             request_hdr->Function == MPI2_FUNCTION_EVENT_NOTIFICATION)
                 return;
 
+        if (ioc_status == MPI2_IOCSTATUS_CONFIG_INVALID_PAGE)
+                return;
+
         switch (ioc_status) {
 
 /****************************************************************************
@@ -517,8 +520,18 @@ _base_display_event_data(struct MPT2SAS_ADAPTER *ioc,
                 desc = "IR Operation Status";
                 break;
         case MPI2_EVENT_SAS_DISCOVERY:
-                desc =  "Discovery";
-                break;
+        {
+                Mpi2EventDataSasDiscovery_t *event_data =
+                    (Mpi2EventDataSasDiscovery_t *)mpi_reply->EventData;
+                printk(MPT2SAS_INFO_FMT "Discovery: (%s)", ioc->name,
+                    (event_data->ReasonCode == MPI2_EVENT_SAS_DISC_RC_STARTED) ?
+                    "start" : "stop");
+                if (event_data->DiscoveryStatus)
+                        printk("discovery_status(0x%08x)",
+                            le32_to_cpu(event_data->DiscoveryStatus));
+                        printk("\n");
+                return;
+        }
         case MPI2_EVENT_SAS_BROADCAST_PRIMITIVE:
                 desc = "SAS Broadcast Primitive";
                 break;
@@ -3184,7 +3197,7 @@ _base_event_notification(struct MPT2SAS_ADAPTER *ioc, int sleep_flag)
         mpi_request->VP_ID = 0;
         for (i = 0; i < MPI2_EVENT_NOTIFY_EVENTMASK_WORDS; i++)
                 mpi_request->EventMasks[i] =
-                    le32_to_cpu(ioc->event_masks[i]);
+                    cpu_to_le32(ioc->event_masks[i]);
         mpt2sas_base_put_smid_default(ioc, smid);
         init_completion(&ioc->base_cmds.done);
         timeleft = wait_for_completion_timeout(&ioc->base_cmds.done, 30*HZ);
@@ -3648,6 +3661,7 @@ mpt2sas_base_attach(struct MPT2SAS_ADAPTER *ioc)
         pci_set_drvdata(ioc->pdev, NULL);
         kfree(ioc->tm_cmds.reply);
         kfree(ioc->transport_cmds.reply);
+        kfree(ioc->scsih_cmds.reply);
         kfree(ioc->config_cmds.reply);
         kfree(ioc->base_cmds.reply);
         kfree(ioc->ctl_cmds.reply);
@@ -3655,6 +3669,7 @@ mpt2sas_base_attach(struct MPT2SAS_ADAPTER *ioc)
         ioc->ctl_cmds.reply = NULL;
         ioc->base_cmds.reply = NULL;
         ioc->tm_cmds.reply = NULL;
+        ioc->scsih_cmds.reply = NULL;
         ioc->transport_cmds.reply = NULL;
         ioc->config_cmds.reply = NULL;
         ioc->pfacts = NULL;
@@ -3684,6 +3699,7 @@ mpt2sas_base_detach(struct MPT2SAS_ADAPTER *ioc)
         kfree(ioc->base_cmds.reply);
         kfree(ioc->tm_cmds.reply);
         kfree(ioc->transport_cmds.reply);
+        kfree(ioc->scsih_cmds.reply);
         kfree(ioc->config_cmds.reply);
 }
 
diff --git a/drivers/scsi/mpt2sas/mpt2sas_config.c b/drivers/scsi/mpt2sas/mpt2sas_config.c
index cf44b355bc97..6f713fd57089 100644
--- a/drivers/scsi/mpt2sas/mpt2sas_config.c
+++ b/drivers/scsi/mpt2sas/mpt2sas_config.c
@@ -1390,12 +1390,12 @@ mpt2sas_config_get_volume_handle(struct MPT2SAS_ADAPTER *ioc, u16 pd_handle,
         if (ioc_status != MPI2_IOCSTATUS_SUCCESS)
                 goto out;
         for (i = 0; i < config_page->NumElements; i++) {
-                if ((config_page->ConfigElement[i].ElementFlags &
+                if ((le16_to_cpu(config_page->ConfigElement[i].ElementFlags) &
                     MPI2_RAIDCONFIG0_EFLAGS_MASK_ELEMENT_TYPE) !=
                     MPI2_RAIDCONFIG0_EFLAGS_VOL_PHYS_DISK_ELEMENT)
                         continue;
-                if (config_page->ConfigElement[i].PhysDiskDevHandle ==
-                    pd_handle) {
+                if (le16_to_cpu(config_page->ConfigElement[i].
+                    PhysDiskDevHandle) == pd_handle) {
                         *volume_handle = le16_to_cpu(config_page->
                             ConfigElement[i].VolDevHandle);
                         r = 0;
diff --git a/drivers/scsi/mpt2sas/mpt2sas_ctl.c b/drivers/scsi/mpt2sas/mpt2sas_ctl.c
index fa9bf83819d5..ae55a912baf4 100644
--- a/drivers/scsi/mpt2sas/mpt2sas_ctl.c
+++ b/drivers/scsi/mpt2sas/mpt2sas_ctl.c
@@ -533,7 +533,7 @@ _ctl_set_task_mid(struct MPT2SAS_ADAPTER *ioc, struct mpt2_ioctl_command *karg,
         if (!found) {
                 dctlprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: "
                     "handle(0x%04x), lun(%d), no active mid!!\n", ioc->name,
-                    desc, tm_request->DevHandle, lun));
+                    desc, le16_to_cpu(tm_request->DevHandle), lun));
                 tm_reply = ioc->ctl_cmds.reply;
                 tm_reply->DevHandle = tm_request->DevHandle;
                 tm_reply->Function = MPI2_FUNCTION_SCSI_TASK_MGMT;
@@ -551,7 +551,8 @@ _ctl_set_task_mid(struct MPT2SAS_ADAPTER *ioc, struct mpt2_ioctl_command *karg,
 
         dctlprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: "
             "handle(0x%04x), lun(%d), task_mid(%d)\n", ioc->name,
-            desc, tm_request->DevHandle, lun, tm_request->TaskMID));
+            desc, le16_to_cpu(tm_request->DevHandle), lun,
+             le16_to_cpu(tm_request->TaskMID)));
         return 0;
 }
 
@@ -647,9 +648,9 @@ _ctl_do_mpt_command(struct MPT2SAS_ADAPTER *ioc,
 
         if (mpi_request->Function == MPI2_FUNCTION_SCSI_IO_REQUEST ||
             mpi_request->Function == MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH) {
-                if (!mpi_request->FunctionDependent1 ||
-                    mpi_request->FunctionDependent1 >
-                    cpu_to_le16(ioc->facts.MaxDevHandle)) {
+                if (!le16_to_cpu(mpi_request->FunctionDependent1) ||
+                    le16_to_cpu(mpi_request->FunctionDependent1) >
+                    ioc->facts.MaxDevHandle) {
                         ret = -EINVAL;
                         mpt2sas_base_free_smid(ioc, smid);
                         goto out;
@@ -897,11 +898,11 @@ _ctl_do_mpt_command(struct MPT2SAS_ADAPTER *ioc,
                     MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH)) {
                         printk(MPT2SAS_INFO_FMT "issue target reset: handle "
                             "= (0x%04x)\n", ioc->name,
-                            mpi_request->FunctionDependent1);
+                            le16_to_cpu(mpi_request->FunctionDependent1));
                         mpt2sas_halt_firmware(ioc);
                         mutex_lock(&ioc->tm_cmds.mutex);
                         mpt2sas_scsih_issue_tm(ioc,
-                            mpi_request->FunctionDependent1, 0,
+                            le16_to_cpu(mpi_request->FunctionDependent1), 0,
                             MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET, 0, 10);
                         ioc->tm_cmds.status = MPT2_CMD_NOT_USED;
                         mutex_unlock(&ioc->tm_cmds.mutex);
@@ -1373,7 +1374,8 @@ _ctl_diag_register_2(struct MPT2SAS_ADAPTER *ioc,
 
         dctlprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: diag_buffer(0x%p), "
             "dma(0x%llx), sz(%d)\n", ioc->name, __func__, request_data,
-            (unsigned long long)request_data_dma, mpi_request->BufferLength));
+            (unsigned long long)request_data_dma,
+            le32_to_cpu(mpi_request->BufferLength)));
 
         for (i = 0; i < MPT2_PRODUCT_SPECIFIC_DWORDS; i++)
                 mpi_request->ProductSpecific[i] =
@@ -2334,8 +2336,8 @@ _ctl_version_nvdata_persistent_show(struct device *cdev,
         struct Scsi_Host *shost = class_to_shost(cdev);
         struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
 
-        return snprintf(buf, PAGE_SIZE, "%02xh\n",
-            le16_to_cpu(ioc->iounit_pg0.NvdataVersionPersistent.Word));
+        return snprintf(buf, PAGE_SIZE, "%08xh\n",
+            le32_to_cpu(ioc->iounit_pg0.NvdataVersionPersistent.Word));
 }
 static DEVICE_ATTR(version_nvdata_persistent, S_IRUGO,
     _ctl_version_nvdata_persistent_show, NULL);
@@ -2354,8 +2356,8 @@ _ctl_version_nvdata_default_show(struct device *cdev,
         struct Scsi_Host *shost = class_to_shost(cdev);
         struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
 
-        return snprintf(buf, PAGE_SIZE, "%02xh\n",
-            le16_to_cpu(ioc->iounit_pg0.NvdataVersionDefault.Word));
+        return snprintf(buf, PAGE_SIZE, "%08xh\n",
+            le32_to_cpu(ioc->iounit_pg0.NvdataVersionDefault.Word));
 }
 static DEVICE_ATTR(version_nvdata_default, S_IRUGO,
     _ctl_version_nvdata_default_show, NULL);
diff --git a/drivers/scsi/mpt2sas/mpt2sas_scsih.c b/drivers/scsi/mpt2sas/mpt2sas_scsih.c
index afd3b82f7cd6..3d1be440ed7b 100644
--- a/drivers/scsi/mpt2sas/mpt2sas_scsih.c
+++ b/drivers/scsi/mpt2sas/mpt2sas_scsih.c
@@ -1376,7 +1376,7 @@ _scsih_display_sata_capabilities(struct MPT2SAS_ADAPTER *ioc,
         }
 
         flags = le16_to_cpu(sas_device_pg0.Flags);
-        device_info = le16_to_cpu(sas_device_pg0.DeviceInfo);
+        device_info = le32_to_cpu(sas_device_pg0.DeviceInfo);
 
         sdev_printk(KERN_INFO, sdev,
             "atapi(%s), ncq(%s), asyn_notify(%s), smart(%s), fua(%s), "
@@ -3210,8 +3210,8 @@ _scsih_scsi_ioc_info(struct MPT2SAS_ADAPTER *ioc, struct scsi_cmnd *scmd,
                 struct sense_info data;
                 _scsih_normalize_sense(scmd->sense_buffer, &data);
                 printk(MPT2SAS_WARN_FMT "\t[sense_key,asc,ascq]: "
-                    "[0x%02x,0x%02x,0x%02x]\n", ioc->name, data.skey,
-                    data.asc, data.ascq);
+                    "[0x%02x,0x%02x,0x%02x], count(%d)\n", ioc->name, data.skey,
+                    data.asc, data.ascq, le32_to_cpu(mpi_reply->SenseCount));
         }
 
         if (scsi_state & MPI2_SCSI_STATE_RESPONSE_INFO_VALID) {
@@ -3265,7 +3265,7 @@ _scsih_smart_predicted_fault(struct MPT2SAS_ADAPTER *ioc, u16 handle)
                 mpi_request.Function = MPI2_FUNCTION_SCSI_ENCLOSURE_PROCESSOR;
                 mpi_request.Action = MPI2_SEP_REQ_ACTION_WRITE_STATUS;
                 mpi_request.SlotStatus =
-                    MPI2_SEP_REQ_SLOTSTATUS_PREDICTED_FAULT;
+                    cpu_to_le32(MPI2_SEP_REQ_SLOTSTATUS_PREDICTED_FAULT);
                 mpi_request.DevHandle = cpu_to_le16(handle);
                 mpi_request.Flags = MPI2_SEP_REQ_FLAGS_DEVHANDLE_ADDRESS;
                 if ((mpt2sas_base_scsi_enclosure_processor(ioc, &mpi_reply,
@@ -5934,6 +5934,7 @@ mpt2sas_scsih_event_callback(struct MPT2SAS_ADAPTER *ioc, u8 msix_index,
         struct fw_event_work *fw_event;
         Mpi2EventNotificationReply_t *mpi_reply;
         u16 event;
+        u16 sz;
 
         /* events turned off due to host reset or driver unloading */
         if (ioc->remove_host)
@@ -5984,8 +5985,8 @@ mpt2sas_scsih_event_callback(struct MPT2SAS_ADAPTER *ioc, u8 msix_index,
                     ioc->name, __FILE__, __LINE__, __func__);
                 return 1;
         }
-        fw_event->event_data =
-            kzalloc(mpi_reply->EventDataLength*4, GFP_ATOMIC);
+        sz = le16_to_cpu(mpi_reply->EventDataLength) * 4;
+        fw_event->event_data = kzalloc(sz, GFP_ATOMIC);
         if (!fw_event->event_data) {
                 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
                     ioc->name, __FILE__, __LINE__, __func__);
@@ -5994,7 +5995,7 @@ mpt2sas_scsih_event_callback(struct MPT2SAS_ADAPTER *ioc, u8 msix_index,
         }
 
         memcpy(fw_event->event_data, mpi_reply->EventData,
-            mpi_reply->EventDataLength*4);
+            sz);
         fw_event->ioc = ioc;
         fw_event->VF_ID = mpi_reply->VF_ID;
         fw_event->VP_ID = mpi_reply->VP_ID;
diff --git a/drivers/scsi/mpt2sas/mpt2sas_transport.c b/drivers/scsi/mpt2sas/mpt2sas_transport.c
index bd7ca2b49f81..9b585f02e804 100644
--- a/drivers/scsi/mpt2sas/mpt2sas_transport.c
+++ b/drivers/scsi/mpt2sas/mpt2sas_transport.c
@@ -1341,7 +1341,8 @@ _transport_smp_handler(struct Scsi_Host *shost, struct sas_rphy *rphy,
                 memcpy(req->sense, mpi_reply, sizeof(*mpi_reply));
                 req->sense_len = sizeof(*mpi_reply);
                 req->resid_len = 0;
-                rsp->resid_len -= mpi_reply->ResponseDataLength;
+                rsp->resid_len -=
+                    le16_to_cpu(mpi_reply->ResponseDataLength);
         } else {
                 dtransportprintk(ioc, printk(MPT2SAS_DEBUG_FMT
                     "%s - no reply\n", ioc->name, __func__));