lkml.org 
[lkml]   [2022]   [Jan]   [24]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    Patch in this message
    /
    From
    Subject[PATCH 5.16 0290/1039] net: dsa: hellcreek: Add STP forwarding rule
    Date
    From: Kurt Kanzenbach <kurt@linutronix.de>

    [ Upstream commit b7ade35eb53a2455f737a623c24e4b24455b2271 ]

    Treat STP as management traffic. STP traffic is designated for the CPU port
    only. In addition, STP traffic has to pass blocked ports.

    Fixes: e4b27ebc780f ("net: dsa: Add DSA driver for Hirschmann Hellcreek switches")
    Signed-off-by: Kurt Kanzenbach <kurt@linutronix.de>
    Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
    Acked-by: Richard Cochran <richardcochran@gmail.com>
    Signed-off-by: Jakub Kicinski <kuba@kernel.org>
    Signed-off-by: Sasha Levin <sashal@kernel.org>
    ---
    drivers/net/dsa/hirschmann/hellcreek.c | 14 ++++++++++++++
    1 file changed, 14 insertions(+)

    diff --git a/drivers/net/dsa/hirschmann/hellcreek.c b/drivers/net/dsa/hirschmann/hellcreek.c
    index bb1a24c8078be..b488990b5b06e 100644
    --- a/drivers/net/dsa/hirschmann/hellcreek.c
    +++ b/drivers/net/dsa/hirschmann/hellcreek.c
    @@ -1074,6 +1074,17 @@ static int hellcreek_setup_fdb(struct hellcreek *hellcreek)
    .reprio_tc = 6, /* TC: 6 as per IEEE 802.1AS */
    .reprio_en = 1,
    };
    + static struct hellcreek_fdb_entry stp = {
    + /* MAC: 01-80-C2-00-00-00 */
    + .mac = { 0x01, 0x80, 0xc2, 0x00, 0x00, 0x00 },
    + .portmask = 0x03, /* Management ports */
    + .age = 0,
    + .is_obt = 0,
    + .pass_blocked = 1,
    + .is_static = 1,
    + .reprio_tc = 6,
    + .reprio_en = 1,
    + };
    int ret;

    mutex_lock(&hellcreek->reg_lock);
    @@ -1081,6 +1092,9 @@ static int hellcreek_setup_fdb(struct hellcreek *hellcreek)
    if (ret)
    goto out;
    ret = __hellcreek_fdb_add(hellcreek, &p2p);
    + if (ret)
    + goto out;
    + ret = __hellcreek_fdb_add(hellcreek, &stp);
    out:
    mutex_unlock(&hellcreek->reg_lock);

    --
    2.34.1


    \
     
     \ /
      Last update: 2022-09-17 16:12    [W:4.032 / U:0.008 seconds]
    ©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site