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Date: Sun, 15 May 2016 03:04:43 -0400
From: Michael Chan <michael.chan@...adcom.com>
To: davem@...emloft.net
Cc: netdev@...r.kernel.org
Subject: [PATCH net-next v2 1/9] bnxt_en: Fix invalid max channel parameter in ethtool -l.
From: Satish Baddipadige <sbaddipa@...adcom.com>
When there is only 1 MSI-X vector or in INTA mode, tx and rx pre-set
max channel parameters are shown incorrectly in ethtool -l. With only 1
vector, bnxt_get_max_rings() will return -ENOMEM. bnxt_get_channels
should check this return value, and set max_rx/max_tx to 0 if it is
non-zero.
Signed-off-by: Satish Baddipadige <sbaddipa@...adcom.com>
Signed-off-by: Michael Chan <michael.chan@...adcom.com>
---
drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c
index d6e41f2..28171f9 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c
@@ -327,7 +327,11 @@ static void bnxt_get_channels(struct net_device *dev,
bnxt_get_max_rings(bp, &max_rx_rings, &max_tx_rings, true);
channel->max_combined = max_rx_rings;
- bnxt_get_max_rings(bp, &max_rx_rings, &max_tx_rings, false);
+ if (bnxt_get_max_rings(bp, &max_rx_rings, &max_tx_rings, false)) {
+ max_rx_rings = 0;
+ max_tx_rings = 0;
+ }
+
tcs = netdev_get_num_tc(dev);
if (tcs > 1)
max_tx_rings /= tcs;
--
1.8.3.1
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