1 files changed, 10 insertions, 0 deletions

diff --git a/drivers/scsi/qla4xxx/ql4_init.c b/drivers/scsi/qla4xxx/ql4_init.c
index 1aca1b4f70b8..2045fd79095f 100644
--- a/drivers/scsi/qla4xxx/ql4_init.c
+++ b/drivers/scsi/qla4xxx/ql4_init.c
@@ -935,6 +935,16 @@ int qla4xxx_initialize_adapter(struct scsi_qla_host *ha, int is_reset)
         if (ha->isp_ops->start_firmware(ha) == QLA_ERROR)
                 goto exit_init_hba;
 
+        /*
+         * For ISP83XX, mailbox and IOCB interrupts are enabled separately.
+         * Mailbox interrupts must be enabled prior to issuing any mailbox
+         * command in order to prevent the possibility of losing interrupts
+         * while switching from polling to interrupt mode. IOCB interrupts are
+         * enabled via isp_ops->enable_intrs.
+         */
+        if (is_qla8032(ha))
+                qla4_83xx_enable_mbox_intrs(ha);
+
         if (qla4xxx_about_firmware(ha) == QLA_ERROR)
                 goto exit_init_hba;