target/linux/generic/backport-5.10/743-v5.16-0003-net-dsa-b53-Improve-flow-control-setup-on-BCM5301x.patch

   1 From 3ff26b29230c54fea2353b63124c589b61953e14 Mon Sep 17 00:00:00 2001
   2 From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl>
   3 Date: Thu, 16 Sep 2021 14:03:53 +0200
   4 Subject: [PATCH] net: dsa: b53: Improve flow control setup on BCM5301x
   5 MIME-Version: 1.0
   6 Content-Type: text/plain; charset=UTF-8
   7 Content-Transfer-Encoding: 8bit
   8
   9 According to the Broadcom's reference driver flow control needs to be
  10 enabled for any CPU switch port (5, 7 or 8 - depending on which one is
  11 used). Current code makes it work only for the port 5. Use
  12 dsa_is_cpu_port() which solved that problem.
  13
  14 Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
  15 Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
  16 Tested-by: Florian Fainelli <f.fainelli@gmail.com>
  17 Signed-off-by: Jakub Kicinski <kuba@kernel.org>
  18 ---
  19  drivers/net/dsa/b53/b53_common.c | 2 +-
  20  1 file changed, 1 insertion(+), 1 deletion(-)
  21
  22 --- a/drivers/net/dsa/b53/b53_common.c
  23 +++ b/drivers/net/dsa/b53/b53_common.c
  24 @@ -1187,7 +1187,7 @@ static void b53_adjust_link(struct dsa_s
  25                 return;
  26
  27         /* Enable flow control on BCM5301x's CPU port */
  28 -       if (is5301x(dev) && port == dev->cpu_port)
  29 +       if (is5301x(dev) && dsa_is_cpu_port(ds, port))
  30                 tx_pause = rx_pause = true;
  31
  32         if (phydev->pause) {