scsi: aacraid: Retrieve HBA host information ioctl

Added a new ioctl interface to retrieve the host device information.

Signed-off-by: Raghava Aditya Renukunta <RaghavaAditya.Renukunta@microsemi.com>
Signed-off-by: Dave Carroll <David.Carroll@microsemi.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

diff --git a/drivers/scsi/aacraid/aacraid.h b/drivers/scsi/aacraid/aacraid.h
index 4814fba41193a9e121d0ff396962b207cec14183..40733967464b003466805403176d7fef5430c437 100644 (file)
--- a/drivers/scsi/aacraid/aacraid.h
+++ b/drivers/scsi/aacraid/aacraid.h
@@ -2334,6 +2334,7 @@ struct revision
 #define FSACTL_GET_CONTAINERS                  2131
 #define FSACTL_SEND_LARGE_FIB                  CTL_CODE(2138, METHOD_BUFFERED)
 #define FSACTL_RESET_IOP                       CTL_CODE(2140, METHOD_BUFFERED)
+#define FSACTL_GET_HBA_INFO                    CTL_CODE(2150, METHOD_BUFFERED)
 /* flags defined for IOP & HW SOFT RESET */
 #define HW_IOP_RESET                           0x01
 #define HW_SOFT_RESET                          0x02
@@ -2372,6 +2373,57 @@ struct aac_common
 
 extern struct aac_common aac_config;
 
+/*
+ * This is for management ioctl purpose only.
+ */
+struct aac_hba_info {
+
+       u8      driver_name[50];
+       u8      adapter_number;
+       u8      system_io_bus_number;
+       u8      device_number;
+       u32     function_number;
+       u32     vendor_id;
+       u32     device_id;
+       u32     sub_vendor_id;
+       u32     sub_system_id;
+       u32     mapped_base_address_size;
+       u32     base_physical_address_high_part;
+       u32     base_physical_address_low_part;
+
+       u32     max_command_size;
+       u32     max_fib_size;
+       u32     max_scatter_gather_from_os;
+       u32     max_scatter_gather_to_fw;
+       u32     max_outstanding_fibs;
+
+       u32     queue_start_threshold;
+       u32     queue_dump_threshold;
+       u32     max_io_size_queued;
+       u32     outstanding_io;
+
+       u32     firmware_build_number;
+       u32     bios_build_number;
+       u32     driver_build_number;
+       u32     serial_number_high_part;
+       u32     serial_number_low_part;
+       u32     supported_options;
+       u32     feature_bits;
+       u32     currentnumber_ports;
+
+       u8      new_comm_interface:1;
+       u8      new_commands_supported:1;
+       u8      disable_passthrough:1;
+       u8      expose_non_dasd:1;
+       u8      queue_allowed:1;
+       u8      bled_check_enabled:1;
+       u8      reserved1:1;
+       u8      reserted2:1;
+
+       u32     reserved3[10];
+
+};
+
 /*
  *     The following macro is used when sending and receiving FIBs. It is
  *     only used for debugging.

diff --git a/drivers/scsi/aacraid/commctrl.c b/drivers/scsi/aacraid/commctrl.c
index d8fc6b8980baf2e5c34ade34992f210aae7468b7..033a054d6c6d821a3ee2eb9ca1f67aff4545e34a 100644 (file)
--- a/drivers/scsi/aacraid/commctrl.c
+++ b/drivers/scsi/aacraid/commctrl.c
@@ -1011,6 +1011,29 @@ static int aac_get_pci_info(struct aac_dev* dev, void __user *arg)
        }
        return 0;
 }
+
+static int aac_get_hba_info(struct aac_dev *dev, void __user *arg)
+{
+       struct aac_hba_info hbainfo;
+
+       hbainfo.adapter_number          = (u8) dev->id;
+       hbainfo.system_io_bus_number    = dev->pdev->bus->number;
+       hbainfo.device_number           = (dev->pdev->devfn >> 3);
+       hbainfo.function_number         = (dev->pdev->devfn & 0x0007);
+
+       hbainfo.vendor_id               = dev->pdev->vendor;
+       hbainfo.device_id               = dev->pdev->device;
+       hbainfo.sub_vendor_id           = dev->pdev->subsystem_vendor;
+       hbainfo.sub_system_id           = dev->pdev->subsystem_device;
+
+       if (copy_to_user(arg, &hbainfo, sizeof(struct aac_hba_info))) {
+               dprintk((KERN_DEBUG "aacraid: Could not copy hba info\n"));
+               return -EFAULT;
+       }
+
+       return 0;
+}
+
 struct aac_reset_iop {
        u8      reset_type;
 };
@@ -1070,6 +1093,9 @@ int aac_do_ioctl(struct aac_dev * dev, int cmd, void __user *arg)
        case FSACTL_GET_PCI_INFO:
                status = aac_get_pci_info(dev,arg);
                break;
+       case FSACTL_GET_HBA_INFO:
+               status = aac_get_hba_info(dev, arg);
+               break;
        case FSACTL_RESET_IOP:
                status = aac_send_reset_adapter(dev, arg);
                break;