[PATCH net 4/4] bnxt_en: Ignore 0 value in autoneg supported speed from firmware.
From: Michael Chan <michael.chan@broadcom.com>
Date: 2017-03-08 23:46:03
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 some situations, the firmware will return 0 for autoneg supported speed. This may happen if the firmware detects no SFP module, for example. The driver should ignore this so that we don't end up with an invalid autoneg setting with nothing advertised. When SFP module is inserted, we'll get the updated settings from firmware at that time. Signed-off-by: Michael Chan <michael.chan@broadcom.com> --- drivers/net/ethernet/broadcom/bnxt/bnxt.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
index 869d4c9..32de458 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c@@ -5511,8 +5511,9 @@ static int bnxt_hwrm_phy_qcaps(struct bnxt *bp) bp->lpi_tmr_hi = le32_to_cpu(resp->valid_tx_lpi_timer_high) & PORT_PHY_QCAPS_RESP_TX_LPI_TIMER_HIGH_MASK; } - link_info->support_auto_speeds = - le16_to_cpu(resp->supported_speeds_auto_mode); + if (resp->supported_speeds_auto_mode) + link_info->support_auto_speeds = + le16_to_cpu(resp->supported_speeds_auto_mode); hwrm_phy_qcaps_exit: mutex_unlock(&bp->hwrm_cmd_lock);
--
1.8.3.1