[SCSI] qla2xxx: set idc version if function is first one to come.

Signed-off-by: Saurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: Chad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>

diff --git a/drivers/scsi/qla2xxx/qla_dbg.c b/drivers/scsi/qla2xxx/qla_dbg.c
index 6de4d03..279f52c 100644 (file)
--- a/drivers/scsi/qla2xxx/qla_dbg.c
+++ b/drivers/scsi/qla2xxx/qla_dbg.c
@@ -34,7 +34,6 @@
  * | AER/EEH                      |       0x9011       |               |
  * | Virtual Port                 |       0xa007       |               |
  * | ISP82XX Specific             |       0xb084       | 0xb002,0xb024  |
- * |                              |                    | 0xb082,0xb083  |
  * | MultiQ                       |       0xc00c       |               |
  * | Misc                         |       0xd010       |               |
  * | Target Mode                 |       0xe06f       |                |

diff --git a/drivers/scsi/qla2xxx/qla_nx.c b/drivers/scsi/qla2xxx/qla_nx.c
index 9fc08b8..3a05444 100644 (file)
--- a/drivers/scsi/qla2xxx/qla_nx.c
+++ b/drivers/scsi/qla2xxx/qla_nx.c
@@ -2302,6 +2302,29 @@ void qla82xx_init_flags(struct qla_hw_data *ha)
        ha->nx_legacy_intr.pci_int_reg = nx_legacy_intr->pci_int_reg;
 }
 
+inline void
+qla82xx_set_idc_version(scsi_qla_host_t *vha)
+{
+       int idc_ver;
+       uint32_t drv_active;
+       struct qla_hw_data *ha = vha->hw;
+
+       drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
+       if (drv_active == (QLA82XX_DRV_ACTIVE << (ha->portnum * 4))) {
+               qla82xx_wr_32(ha, QLA82XX_CRB_DRV_IDC_VERSION,
+                   QLA82XX_IDC_VERSION);
+               ql_log(ql_log_info, vha, 0xb082,
+                   "IDC version updated to %d\n", QLA82XX_IDC_VERSION);
+       } else {
+               idc_ver = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_IDC_VERSION);
+               if (idc_ver != QLA82XX_IDC_VERSION)
+                       ql_log(ql_log_info, vha, 0xb083,
+                           "qla2xxx driver IDC version %d is not compatible "
+                           "with IDC version %d of the other drivers\n",
+                           QLA82XX_IDC_VERSION, idc_ver);
+       }
+}
+
 inline void
 qla82xx_set_drv_active(scsi_qla_host_t *vha)
 {
@@ -2878,9 +2901,6 @@ dev_initialize:
            "HW State: INITIALIZING.\n");
        qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE, QLA8XXX_DEV_INITIALIZING);
 
-       /* Driver that sets device state to initializating sets IDC version */
-       qla82xx_wr_32(ha, QLA82XX_CRB_DRV_IDC_VERSION, QLA82XX_IDC_VERSION);
-
        qla82xx_idc_unlock(ha);
        rval = qla82xx_start_firmware(vha);
        qla82xx_idc_lock(ha);
@@ -3210,8 +3230,10 @@ qla82xx_device_state_handler(scsi_qla_host_t *vha)
        int loopcount = 0;
 
        qla82xx_idc_lock(ha);
-       if (!vha->flags.init_done)
+       if (!vha->flags.init_done) {
                qla82xx_set_drv_active(vha);
+               qla82xx_set_idc_version(vha);
+       }
 
        dev_state = qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
        old_dev_state = dev_state;