From: Michael Chan <michael.chan@broadcom.com>
Date: Mon, 24 Jul 2017 12:34:26 -0400
Subject: bnxt_en: Set ETS min_bw parameter for older firmware.
Patch-mainline: v4.14-rc1
Git-commit: 70098a47bbf131b65c64ca935c2480e64c9c7c51
References: bsc#1050242 FATE#322914
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>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
drivers/net/ethernet/broadcom/bnxt/bnxt_dcb.c | 6 ++++++
drivers/net/ethernet/broadcom/bnxt/bnxt_dcb.h | 1 +
2 files changed, 7 insertions(+)
--- 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(st
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) {
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt_dcb.h
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_dcb.h
@@ -26,6 +26,7 @@ struct bnxt_cos2bw_cfg {
u8 queue_id;
__le32 min_bw;
__le32 max_bw;
+#define BW_VALUE_UNIT_PERCENT1_100 (0x1UL << 29)
u8 tsa;
u8 pri_lvl;
u8 bw_weight;