Merge tag 'v3.10.64' into update

[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / scsi / megaraid / megaraid_sas_base.c

diff --git a/drivers/scsi/megaraid/megaraid_sas_base.c b/drivers/scsi/megaraid/megaraid_sas_base.c
index 3a9ddae86f1f8e2d5e33474a7f0f3510ec413c65..78b4fe84524587fca74d5bc38c06c58816de8ecf 100644 (file)
--- a/drivers/scsi/megaraid/megaraid_sas_base.c
+++ b/drivers/scsi/megaraid/megaraid_sas_base.c
@@ -933,7 +933,7 @@ megasas_issue_blocked_abort_cmd(struct megasas_instance *instance,
        abort_fr->abort_mfi_phys_addr_hi = 0;
 
        cmd->sync_cmd = 1;
-       cmd->cmd_status = 0xFF;
+       cmd->cmd_status = ENODATA;
 
        instance->instancet->issue_dcmd(instance, cmd);
 
@@ -2099,6 +2099,7 @@ static struct scsi_host_template megasas_template = {
        .bios_param = megasas_bios_param,
        .use_clustering = ENABLE_CLUSTERING,
        .change_queue_depth = megasas_change_queue_depth,
+       .no_write_same = 1,
 };
 
 /**
@@ -3460,6 +3461,7 @@ static int megasas_init_fw(struct megasas_instance *instance)
        u32 max_sectors_1;
        u32 max_sectors_2;
        u32 tmp_sectors, msix_enable;
+       resource_size_t base_addr;
        struct megasas_register_set __iomem *reg_set;
        struct megasas_ctrl_info *ctrl_info;
        unsigned long bar_list;
@@ -3468,14 +3470,14 @@ static int megasas_init_fw(struct megasas_instance *instance)
        /* Find first memory bar */
        bar_list = pci_select_bars(instance->pdev, IORESOURCE_MEM);
        instance->bar = find_first_bit(&bar_list, sizeof(unsigned long));
-       instance->base_addr = pci_resource_start(instance->pdev, instance->bar);
        if (pci_request_selected_regions(instance->pdev, instance->bar,
                                         "megasas: LSI")) {
                printk(KERN_DEBUG "megasas: IO memory region busy!\n");
                return -EBUSY;
        }
 
-       instance->reg_set = ioremap_nocache(instance->base_addr, 8192);
+       base_addr = pci_resource_start(instance->pdev, instance->bar);
+       instance->reg_set = ioremap_nocache(base_addr, 8192);
 
        if (!instance->reg_set) {
                printk(KERN_DEBUG "megasas: Failed to map IO mem\n");
@@ -3508,11 +3510,21 @@ static int megasas_init_fw(struct megasas_instance *instance)
                break;
        }
 
-       /*
-        * We expect the FW state to be READY
-        */
-       if (megasas_transition_to_ready(instance, 0))
-               goto fail_ready_state;
+       if (megasas_transition_to_ready(instance, 0)) {
+               atomic_set(&instance->fw_reset_no_pci_access, 1);
+               instance->instancet->adp_reset
+                       (instance, instance->reg_set);
+               atomic_set(&instance->fw_reset_no_pci_access, 0);
+               dev_info(&instance->pdev->dev,
+                       "megasas: FW restarted successfully from %s!\n",
+                       __func__);
+
+               /*waitting for about 30 second before retry*/
+               ssleep(30);
+
+               if (megasas_transition_to_ready(instance, 0))
+                       goto fail_ready_state;
+       }
 
        /* Check if MSI-X is supported while in ready state */
        msix_enable = (instance->instancet->read_fw_status_reg(reg_set) &
@@ -4852,10 +4864,12 @@ megasas_mgmt_fw_ioctl(struct megasas_instance *instance,
                                    sense, sense_handle);
        }
 
-       for (i = 0; i < ioc->sge_count && kbuff_arr[i]; i++) {
-               dma_free_coherent(&instance->pdev->dev,
-                                   kern_sge32[i].length,
-                                   kbuff_arr[i], kern_sge32[i].phys_addr);
+       for (i = 0; i < ioc->sge_count; i++) {
+               if (kbuff_arr[i])
+                       dma_free_coherent(&instance->pdev->dev,
+                                         kern_sge32[i].length,
+                                         kbuff_arr[i],
+                                         kern_sge32[i].phys_addr);
        }
 
        megasas_return_cmd(instance, cmd);