scsi: megaraid_sas: Print BAR information from driver

Add prints for BAR address information during driver load.  This helps in
debugging issues with BAR address changing during OS boot.

Signed-off-by: Sumit Saxena <sumit.saxena@broadcom.com>
Signed-off-by: Shivasharan S <shivasharan.srikanteshwara@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

diff --git a/drivers/scsi/megaraid/megaraid_sas_base.c b/drivers/scsi/megaraid/megaraid_sas_base.c
index fb0ccba..202d5ce 100644 (file)
--- a/drivers/scsi/megaraid/megaraid_sas_base.c
+++ b/drivers/scsi/megaraid/megaraid_sas_base.c
@@ -5624,6 +5624,7 @@ static int megasas_init_fw(struct megasas_instance *instance)
        u32 max_sectors_2, tmp_sectors, msix_enable;
        u32 scratch_pad_1, scratch_pad_2, scratch_pad_3, status_reg;
        resource_size_t base_addr;
+       void *base_addr_phys;
        struct megasas_ctrl_info *ctrl_info = NULL;
        unsigned long bar_list;
        int i, j, loop, fw_msix_count = 0;
@@ -5649,6 +5650,11 @@ static int megasas_init_fw(struct megasas_instance *instance)
                goto fail_ioremap;
        }
 
+       base_addr_phys = &base_addr;
+       dev_printk(KERN_DEBUG, &instance->pdev->dev,
+                  "BAR:0x%lx  BAR's base_addr(phys):%pa  mapped virt_addr:0x%p\n",
+                  instance->bar, base_addr_phys, instance->reg_set);
+
        if (instance->adapter_type != MFI_SERIES)
                instance->instancet = &megasas_instance_template_fusion;
        else {