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authorSiva Reddy Kallam <siva.kallam@broadcom.com>2017-12-22 16:05:29 +0530
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2018-03-03 10:23:24 +0100
commit78cc448e0882abffdc0c50309127d39bc2523146 (patch)
tree33c9e81a90dd33189b2a24f19b24cf07bd7d3204
parent3d6becbc8063bda30a84527039fac9cf449a1e56 (diff)
tg3: Enable PHY reset in MTU change path for 5720
[ Upstream commit e60ee41aaf898584205a6af5c996860d0fe6a836 ] A customer noticed RX path hang when MTU is changed on the fly while running heavy traffic with NCSI enabled for 5717 and 5719. Since 5720 belongs to same ASIC family, we observed same issue and same fix could solve this problem for 5720. Signed-off-by: Siva Reddy Kallam <siva.kallam@broadcom.com> Signed-off-by: Michael Chan <michael.chan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Sasha Levin <alexander.levin@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--drivers/net/ethernet/broadcom/tg3.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/net/ethernet/broadcom/tg3.c b/drivers/net/ethernet/broadcom/tg3.c
index 3943c5c1281c..795a133fb074 100644
--- a/drivers/net/ethernet/broadcom/tg3.c
+++ b/drivers/net/ethernet/broadcom/tg3.c
@@ -14238,7 +14238,8 @@ static int tg3_change_mtu(struct net_device *dev, int new_mtu)
*/
if (tg3_asic_rev(tp) == ASIC_REV_57766 ||
tg3_asic_rev(tp) == ASIC_REV_5717 ||
- tg3_asic_rev(tp) == ASIC_REV_5719)
+ tg3_asic_rev(tp) == ASIC_REV_5719 ||
+ tg3_asic_rev(tp) == ASIC_REV_5720)
reset_phy = true;
err = tg3_restart_hw(tp, reset_phy);