[PATCH net-next 07/10] bnxt_en: Set ETS min_bw parameter for older firmware.
From: Michael Chan <michael.chan@broadcom.com>
Date: 2017-07-24 16:34:51
Subsystem:
broadcom bnxt_en 50 gigabit ethernet driver, networking drivers, the rest · Maintainers:
Michael Chan, Pavan Chebbi, Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
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> --- drivers/net/ethernet/broadcom/bnxt/bnxt_dcb.c | 6 ++++++ drivers/net/ethernet/broadcom/bnxt/bnxt_dcb.h | 1 + 2 files changed, 7 insertions(+)
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) {
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_dcb.h b/drivers/net/ethernet/broadcom/bnxt/bnxt_dcb.h
index ecd0a5e..d2e0af9 100644
--- 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;
--
1.8.3.1