diff options
Diffstat (limited to 'target/linux/layerscape/patches-5.4/701-net-0393-drivers-net-dsa-felix-Handle-PAUSE-Rx-regardless-of-.patch')
| -rw-r--r-- | target/linux/layerscape/patches-5.4/701-net-0393-drivers-net-dsa-felix-Handle-PAUSE-Rx-regardless-of-.patch | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/target/linux/layerscape/patches-5.4/701-net-0393-drivers-net-dsa-felix-Handle-PAUSE-Rx-regardless-of-.patch b/target/linux/layerscape/patches-5.4/701-net-0393-drivers-net-dsa-felix-Handle-PAUSE-Rx-regardless-of-.patch new file mode 100644 index 0000000000..887ca36e04 --- /dev/null +++ b/target/linux/layerscape/patches-5.4/701-net-0393-drivers-net-dsa-felix-Handle-PAUSE-Rx-regardless-of-.patch @@ -0,0 +1,35 @@ +From 774408ea6a55b9d40b7bdc4ff4e33f1464c605c9 Mon Sep 17 00:00:00 2001 +From: Alex Marginean <alexandru.marginean@nxp.com> +Date: Wed, 8 Jan 2020 13:15:07 +0200 +Subject: [PATCH] drivers: net: dsa: felix: Handle PAUSE Rx regardless of AN + result + +Flow control is used with 2500Base-X and AQR PHYs to do rate adapation +between line side 100/1000 links and MAC running at 2.5G. This is +independent of the flow control configuration settled on line side though +AN. In general allowing MAC to handle flow control even though AN did +not enable it explicitly should not be a problem, so the patch enables +it in all cases. + +Signed-off-by: Alex Marginean <alexandru.marginean@nxp.com> +--- + drivers/net/dsa/ocelot/felix.c | 8 ++++++-- + 1 file changed, 6 insertions(+), 2 deletions(-) + +--- a/drivers/net/dsa/ocelot/felix.c ++++ b/drivers/net/dsa/ocelot/felix.c +@@ -267,8 +267,12 @@ static void felix_phylink_mac_config(str + * specification in incoming pause frames. + */ + mac_fc_cfg = SYS_MAC_FC_CFG_FC_LINK_SPEED(state->speed); +- if (state->pause & MLO_PAUSE_RX) +- mac_fc_cfg |= SYS_MAC_FC_CFG_RX_FC_ENA; ++ ++ /* handle Rx pause in all cases, with 2500base-X this is used for rate ++ * adaptation. ++ */ ++ mac_fc_cfg |= SYS_MAC_FC_CFG_RX_FC_ENA; ++ + if (state->pause & MLO_PAUSE_TX) + mac_fc_cfg |= SYS_MAC_FC_CFG_TX_FC_ENA | + SYS_MAC_FC_CFG_PAUSE_VAL_CFG(0xffff) | |