mpt3sas: Define 'hba_mpi_version_belonged' IOC variable

1. Use 'hba_mpi_version_belonged' IOC varable to uniquely identify each
individual generation driver functionality at runtime.

2. Declare global variable 'driver_name' and use this variable while
reserving PCI regions and while allocating the IRQs.

Signed-off-by: Sreekanth Reddy <Sreekanth.Reddy@avagotech.com>
Acked-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

6 files changed, 62 insertions, 8 deletions

diff --git a/drivers/scsi/mpt2sas/mpt2sas_module.c b/drivers/scsi/mpt2sas/mpt2sas_module.c
index 2b7069329612..d407ed04315d 100644
--- a/drivers/scsi/mpt2sas/mpt2sas_module.c
+++ b/drivers/scsi/mpt2sas/mpt2sas_module.c
@@ -196,6 +196,7 @@ _mpt2sas_probe(struct pci_dev *pdev, const struct pci_device_id *id)
         if (!shost)
                 return -ENODEV;
 
+        sprintf(driver_name, "%s", MPT2SAS_DRIVER_NAME);
         rv = scsih_probe(pdev, shost);
         return rv;
 }
diff --git a/drivers/scsi/mpt3sas/mpt3sas_base.c b/drivers/scsi/mpt3sas/mpt3sas_base.c
index 302f02afd2a1..8a7f93ed2927 100644
--- a/drivers/scsi/mpt3sas/mpt3sas_base.c
+++ b/drivers/scsi/mpt3sas/mpt3sas_base.c
@@ -1643,10 +1643,10 @@ _base_request_irq(struct MPT3SAS_ADAPTER *ioc, u8 index, u32 vector)
         atomic_set(&reply_q->busy, 0);
         if (ioc->msix_enable)
                 snprintf(reply_q->name, MPT_NAME_LENGTH, "%s%d-msix%d",
-                    MPT3SAS_DRIVER_NAME, ioc->id, index);
+                    driver_name, ioc->id, index);
         else
                 snprintf(reply_q->name, MPT_NAME_LENGTH, "%s%d",
-                    MPT3SAS_DRIVER_NAME, ioc->id);
+                    driver_name, ioc->id);
         r = request_irq(vector, _base_interrupt, IRQF_SHARED, reply_q->name,
             reply_q);
         if (r) {
@@ -1872,7 +1872,7 @@ mpt3sas_base_map_resources(struct MPT3SAS_ADAPTER *ioc)
 
 
         if (pci_request_selected_regions(pdev, ioc->bars,
-            MPT3SAS_DRIVER_NAME)) {
+            driver_name)) {
                 pr_warn(MPT3SAS_FMT "pci_request_selected_regions: failed\n",
                         ioc->name);
                 ioc->bars = 0;
@@ -4021,7 +4021,7 @@ _base_send_ioc_init(struct MPT3SAS_ADAPTER *ioc, int sleep_flag)
         mpi_request.WhoInit = MPI2_WHOINIT_HOST_DRIVER;
         mpi_request.VF_ID = 0; /* TODO */
         mpi_request.VP_ID = 0;
-        mpi_request.MsgVersion = cpu_to_le16(MPI25_VERSION);
+        mpi_request.MsgVersion = cpu_to_le16(ioc->hba_mpi_version_belonged);
         mpi_request.HeaderVersion = cpu_to_le16(MPI2_HEADER_VERSION);
 
         if (_base_is_controller_msix_enabled(ioc))
diff --git a/drivers/scsi/mpt3sas/mpt3sas_base.h b/drivers/scsi/mpt3sas/mpt3sas_base.h
index 0f86729fcf25..4c9a1546d50c 100644
--- a/drivers/scsi/mpt3sas/mpt3sas_base.h
+++ b/drivers/scsi/mpt3sas/mpt3sas_base.h
@@ -870,6 +870,7 @@ struct MPT3SAS_ADAPTER {
         MPT_BUILD_SG    build_sg;
         MPT_BUILD_ZERO_LEN_SGE build_zero_len_sge;
         u16             sge_size_ieee;
+        u16             hba_mpi_version_belonged;
 
         /* function ptr for MPI sg elements only */
         MPT_BUILD_SG    build_sg_mpi;
@@ -1023,6 +1024,8 @@ typedef u8 (*MPT_CALLBACK)(struct MPT3SAS_ADAPTER *ioc, u16 smid, u8 msix_index,
 
 /* base shared API */
 extern struct list_head mpt3sas_ioc_list;
+extern char    driver_name[MPT_NAME_LENGTH];
+
 void mpt3sas_base_start_watchdog(struct MPT3SAS_ADAPTER *ioc);
 void mpt3sas_base_stop_watchdog(struct MPT3SAS_ADAPTER *ioc);
 
diff --git a/drivers/scsi/mpt3sas/mpt3sas_ctl.c b/drivers/scsi/mpt3sas/mpt3sas_ctl.c
index ffe79829de30..8b46cbf9463f 100644
--- a/drivers/scsi/mpt3sas/mpt3sas_ctl.c
+++ b/drivers/scsi/mpt3sas/mpt3sas_ctl.c
@@ -1023,7 +1023,6 @@ _ctl_getiocinfo(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
             __func__));
 
         memset(&karg, 0 , sizeof(karg));
-        karg.adapter_type = MPT3_IOCTL_INTERFACE_SAS3;
         if (ioc->pfacts)
                 karg.port_number = ioc->pfacts[0].PortNumber;
         karg.hw_rev = ioc->pdev->revision;
@@ -1035,9 +1034,22 @@ _ctl_getiocinfo(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
         karg.pci_information.u.bits.function = PCI_FUNC(ioc->pdev->devfn);
         karg.pci_information.segment_id = pci_domain_nr(ioc->pdev->bus);
         karg.firmware_version = ioc->facts.FWVersion.Word;
-        strcpy(karg.driver_version, MPT3SAS_DRIVER_NAME);
+        strcpy(karg.driver_version, driver_name);
         strcat(karg.driver_version, "-");
-        strcat(karg.driver_version, MPT3SAS_DRIVER_VERSION);
+        switch  (ioc->hba_mpi_version_belonged) {
+        case MPI2_VERSION:
+                karg.adapter_type = MPT2_IOCTL_INTERFACE_SAS2;
+                strcat(karg.driver_version, MPT2SAS_DRIVER_VERSION);
+                break;
+        case MPI25_VERSION:
+                karg.adapter_type = MPT3_IOCTL_INTERFACE_SAS3;
+                strcat(karg.driver_version, MPT3SAS_DRIVER_VERSION);
+                break;
+        }
+        if (ioc->hba_mpi_version_belonged == MPI2_VERSION)
+                strcat(karg.driver_version, MPT2SAS_DRIVER_VERSION);
+        else
+                strcat(karg.driver_version, MPT3SAS_DRIVER_VERSION);
         karg.bios_version = le32_to_cpu(ioc->bios_pg3.BiosVersion);
 
         if (copy_to_user(arg, &karg, sizeof(karg))) {
diff --git a/drivers/scsi/mpt3sas/mpt3sas_module.c b/drivers/scsi/mpt3sas/mpt3sas_module.c
index e5f43ba04c4b..322dc8da3d7d 100644
--- a/drivers/scsi/mpt3sas/mpt3sas_module.c
+++ b/drivers/scsi/mpt3sas/mpt3sas_module.c
@@ -168,6 +168,7 @@ _mpt3sas_probe(struct pci_dev *pdev, const struct pci_device_id *id)
         if (!shost)
                 return -ENODEV;
 
+        sprintf(driver_name, "%s", MPT3SAS_DRIVER_NAME);
         rv = scsih_probe(pdev, shost);
         return rv;
 }
diff --git a/drivers/scsi/mpt3sas/mpt3sas_scsih.c b/drivers/scsi/mpt3sas/mpt3sas_scsih.c
index 56726a0b37fb..233627d23d0f 100644
--- a/drivers/scsi/mpt3sas/mpt3sas_scsih.c
+++ b/drivers/scsi/mpt3sas/mpt3sas_scsih.c
@@ -73,6 +73,7 @@ static u8 _scsih_check_for_pending_tm(struct MPT3SAS_ADAPTER *ioc, u16 smid);
 
 /* global parameters */
 LIST_HEAD(mpt3sas_ioc_list);
+char    driver_name[MPT_NAME_LENGTH];
 
 /* local parameters */
 static u8 scsi_io_cb_idx = -1;
@@ -7924,6 +7925,39 @@ scsih_scan_finished(struct Scsi_Host *shost, unsigned long time)
         return 1;
 }
 
+void
+_scsih_determine_hba_mpi_version(struct MPT3SAS_ADAPTER *ioc) {
+
+        switch (ioc->pdev->device) {
+        case MPI2_MFGPAGE_DEVID_SAS2004:
+        case MPI2_MFGPAGE_DEVID_SAS2008:
+        case MPI2_MFGPAGE_DEVID_SAS2108_1:
+        case MPI2_MFGPAGE_DEVID_SAS2108_2:
+        case MPI2_MFGPAGE_DEVID_SAS2108_3:
+        case MPI2_MFGPAGE_DEVID_SAS2116_1:
+        case MPI2_MFGPAGE_DEVID_SAS2116_2:
+        case MPI2_MFGPAGE_DEVID_SAS2208_1:
+        case MPI2_MFGPAGE_DEVID_SAS2208_2:
+        case MPI2_MFGPAGE_DEVID_SAS2208_3:
+        case MPI2_MFGPAGE_DEVID_SAS2208_4:
+        case MPI2_MFGPAGE_DEVID_SAS2208_5:
+        case MPI2_MFGPAGE_DEVID_SAS2208_6:
+        case MPI2_MFGPAGE_DEVID_SAS2308_1:
+        case MPI2_MFGPAGE_DEVID_SAS2308_2:
+        case MPI2_MFGPAGE_DEVID_SAS2308_3:
+                ioc->hba_mpi_version_belonged = MPI2_VERSION;
+                break;
+        case MPI25_MFGPAGE_DEVID_SAS3004:
+        case MPI25_MFGPAGE_DEVID_SAS3008:
+        case MPI25_MFGPAGE_DEVID_SAS3108_1:
+        case MPI25_MFGPAGE_DEVID_SAS3108_2:
+        case MPI25_MFGPAGE_DEVID_SAS3108_5:
+        case MPI25_MFGPAGE_DEVID_SAS3108_6:
+                ioc->hba_mpi_version_belonged = MPI25_VERSION;
+                break;
+        }
+}
+
 /**
  * scsih_probe - attach and add scsi host
  * @pdev: PCI device struct
@@ -7944,7 +7978,7 @@ scsih_probe(struct pci_dev *pdev, struct Scsi_Host *shost)
         list_add_tail(&ioc->list, &mpt3sas_ioc_list);
         ioc->shost = shost;
         ioc->id = mpt_ids++;
-        sprintf(ioc->name, "%s%d", MPT3SAS_DRIVER_NAME, ioc->id);
+
         ioc->pdev = pdev;
         ioc->scsi_io_cb_idx = scsi_io_cb_idx;
         ioc->tm_cb_idx = tm_cb_idx;
@@ -7979,6 +8013,9 @@ scsih_probe(struct pci_dev *pdev, struct Scsi_Host *shost)
         INIT_LIST_HEAD(&ioc->delayed_tr_volume_list);
         INIT_LIST_HEAD(&ioc->reply_queue_list);
 
+        _scsih_determine_hba_mpi_version(ioc);
+        sprintf(ioc->name, "%s_cm%d", driver_name, ioc->id);
+
         /* init shost parameters */
         shost->max_cmd_len = 32;
         shost->max_lun = max_lun;