net: dsa: bcm_sf2: force pause link settings

commit 7c97bc0128b2eecc703106112679a69d446d1a12 upstream.

The pause settings reported by the PHY should also be applied to the GMII port
status override otherwise the switch will not generate pause frames towards the
link partner despite the advertisement saying otherwise.

Fixes: 246d7f773c13 ("net: dsa: add Broadcom SF2 switch driver")
Signed-off-by: Doug Berger <opendmb@gmail.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Link: https://lore.kernel.org/r/20220623030204.1966851-1-f.fainelli@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/net/dsa/bcm_sf2.c b/drivers/net/dsa/bcm_sf2.c
index b3a43a3..d76b237 100644 (file)
--- a/drivers/net/dsa/bcm_sf2.c
+++ b/drivers/net/dsa/bcm_sf2.c
@@ -865,6 +865,11 @@ static void bcm_sf2_sw_mac_link_up(struct dsa_switch *ds, int port,
                if (duplex == DUPLEX_FULL)
                        reg |= DUPLX_MODE;
 
+               if (tx_pause)
+                       reg |= TXFLOW_CNTL;
+               if (rx_pause)
+                       reg |= RXFLOW_CNTL;
+
                core_writel(priv, reg, offset);
        }