bnxt_en: Set ETS min_bw parameter for older firmware.

In addition to the ETS weight, older firmware also requires the min_bw
parameter to be set for it to work properly.

Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_dcb.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_dcb.c
index c014589..aa1f3a2 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt_dcb.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_dcb.c
@@ -93,6 +93,12 @@ static int bnxt_hwrm_queue_cos2bw_cfg(struct bnxt *bp, struct ieee_ets *ets,
 			cos2bw.tsa =
 				QUEUE_COS2BW_QCFG_RESP_QUEUE_ID0_TSA_ASSIGN_ETS;
 			cos2bw.bw_weight = ets->tc_tx_bw[i];
+			/* older firmware requires min_bw to be set to the
+			 * same weight value in percent.
+			 */
+			cos2bw.min_bw =
+				cpu_to_le32((ets->tc_tx_bw[i] * 100) |
+					    BW_VALUE_UNIT_PERCENT1_100);
 		}
 		memcpy(data, &cos2bw.queue_id, sizeof(cos2bw) - 4);
 		if (i == 0) {