diff options
Diffstat (limited to 'drivers/net/ethernet/broadcom/bnxt/bnxt_dcb.c')
| -rw-r--r-- | drivers/net/ethernet/broadcom/bnxt/bnxt_dcb.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_dcb.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_dcb.c index 8e90224c43a2..8a68df4d9e59 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt_dcb.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_dcb.c @@ -433,6 +433,7 @@ static int bnxt_hwrm_queue_dscp2pri_cfg(struct bnxt *bp, struct dcb_app *app, static int bnxt_ets_validate(struct bnxt *bp, struct ieee_ets *ets, u8 *tc) { int total_ets_bw = 0; + bool zero = false; u8 max_tc = 0; int i; @@ -453,13 +454,20 @@ static int bnxt_ets_validate(struct bnxt *bp, struct ieee_ets *ets, u8 *tc) break; case IEEE_8021QAZ_TSA_ETS: total_ets_bw += ets->tc_tx_bw[i]; + zero = zero || !ets->tc_tx_bw[i]; break; default: return -ENOTSUPP; } } - if (total_ets_bw > 100) + if (total_ets_bw > 100) { + netdev_warn(bp->dev, "rejecting ETS config exceeding available bandwidth\n"); return -EINVAL; + } + if (zero && total_ets_bw == 100) { + netdev_warn(bp->dev, "rejecting ETS config starving a TC\n"); + return -EINVAL; + } if (max_tc >= bp->max_tc) *tc = bp->max_tc; |