From 547030c8e663520348557a5c7ed1eacf72e6bf86 Mon Sep 17 00:00:00 2001 From: Mika Westerberg Date: Mon, 22 Jun 2020 19:30:22 +0300 Subject: [PATCH] net: thunderbolt: Add comment clarifying prtcstns flags ThunderboltIP protocol currently has two flags from which we only support and set match frags ID. The first flag is reserved for full E2E flow control. Add a comment that clarifies them. Suggested-by: Yehezkel Bernat Signed-off-by: Mika Westerberg Reviewed-by: Yehezkel Bernat Signed-off-by: David S. Miller --- drivers/net/thunderbolt.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/net/thunderbolt.c b/drivers/net/thunderbolt.c index dacb4f680fd4..c2e44083032c 100644 --- a/drivers/net/thunderbolt.c +++ b/drivers/net/thunderbolt.c @@ -1335,6 +1335,10 @@ static int __init tbnet_init(void) tb_property_add_immediate(tbnet_dir, "prtcid", 1); tb_property_add_immediate(tbnet_dir, "prtcvers", 1); tb_property_add_immediate(tbnet_dir, "prtcrevs", 1); + /* Currently only announce support for match frags ID (bit 1). Bit 0 + * is reserved for full E2E flow control which we do not support at + * the moment. + */ tb_property_add_immediate(tbnet_dir, "prtcstns", TBNET_MATCH_FRAGS_ID);