qla2xxx: Reset reserved field in firmware options to 0

During NVRAM initialization in target mode, reset reserved
fields in firmware options to Zero (BIT 15)

Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com>
Signed-off-by: Giridhar Malavali <giridhar.malavali@cavium.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>

diff --git a/drivers/scsi/qla2xxx/qla_target.c b/drivers/scsi/qla2xxx/qla_target.c
index dd5b2e22bd5cb10904583f6708e4908f08c96615..6eb051783dc8e088708e6122bf705ddd05ab200d 100644 (file)
--- a/drivers/scsi/qla2xxx/qla_target.c
+++ b/drivers/scsi/qla2xxx/qla_target.c
@@ -6542,6 +6542,13 @@ qlt_24xx_config_nvram_stage1(struct scsi_qla_host *vha, struct nvram_24xx *nv)
 
                /* Disable Full Login after LIP */
                nv->host_p &= cpu_to_le32(~BIT_10);
+
+               /*
+                * clear BIT 15 explicitly as we have seen at least
+                * a couple of instances where this was set and this
+                * was causing the firmware to not be initialized.
+                */
+               nv->firmware_options_1 &= cpu_to_le32(~BIT_15);
                /* Enable target PRLI control */
                nv->firmware_options_2 |= cpu_to_le32(BIT_14);
        } else {
@@ -6626,11 +6633,17 @@ qlt_81xx_config_nvram_stage1(struct scsi_qla_host *vha, struct nvram_81xx *nv)
                /* Disable ini mode, if requested */
                if (!qla_ini_mode_enabled(vha))
                        nv->firmware_options_1 |= cpu_to_le32(BIT_5);
-
                /* Disable Full Login after LIP */
                nv->firmware_options_1 &= cpu_to_le32(~BIT_13);
                /* Enable initial LIP */
                nv->firmware_options_1 &= cpu_to_le32(~BIT_9);
+               /*
+                * clear BIT 15 explicitly as we have seen at
+                * least a couple of instances where this was set
+                * and this was causing the firmware to not be
+                * initialized.
+                */
+               nv->firmware_options_1 &= cpu_to_le32(~BIT_15);
                if (ql2xtgt_tape_enable)
                        /* Enable FC tape support */
                        nv->firmware_options_2 |= cpu_to_le32(BIT_12);