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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>
This commit is contained in:
Mika Westerberg 2020-06-22 19:30:22 +03:00 committed by David S. Miller
parent b5b2382238
commit 547030c8e6
1 changed files with 4 additions and 0 deletions
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4
drivers/net/thunderbolt.c
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@ -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);