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authorMika Westerberg <mika.westerberg@linux.intel.com>2020-06-22 19:30:22 +0300
committerDavid S. Miller <davem@davemloft.net>2020-06-24 06:36:02 +0300
commit547030c8e663520348557a5c7ed1eacf72e6bf86 (patch)
tree5149ae129bb43687672d281e752fe3f0d3b838b9 /drivers/net/thunderbolt.c
parentb5b2382238d1b926752a74b5ee2d418d57b823d4 (diff)
downloadlinux-547030c8e663520348557a5c7ed1eacf72e6bf86.tar.xz
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 <yehezkelshb@gmail.com> Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com> Reviewed-by: Yehezkel Bernat <YehezkelShB@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/thunderbolt.c')
-rw-r--r--drivers/net/thunderbolt.c4
1 files changed, 4 insertions, 0 deletions
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);