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| author | Sanath S <Sanath.S@amd.com> | 2024-01-13 12:42:23 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-04-27 18:12:55 +0300 |
| commit | 1b0a2f4b670b533f2a6727e2feb3abb313cfe612 (patch) | |
| tree | 4c09d45be7f76bd5cc2d950bd934e70ac1fca102 /drivers | |
| parent | ddab682b1a52426ccc0de70d9061920454aa385a (diff) | |
| download | linux-1b0a2f4b670b533f2a6727e2feb3abb313cfe612.tar.xz | |
thunderbolt: Introduce tb_path_deactivate_hop()
commit b35c1d7b11da8c08b14147bbe87c2c92f7a83f8b upstream.
This function can be used to clear path config space of an adapter. Make
it available for other files in this driver.
Signed-off-by: Sanath S <Sanath.S@amd.com>
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Cc: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/thunderbolt/path.c | 13 | ||||
| -rw-r--r-- | drivers/thunderbolt/tb.h | 1 |
2 files changed, 14 insertions, 0 deletions
diff --git a/drivers/thunderbolt/path.c b/drivers/thunderbolt/path.c index 091a81bbdbdc..f760e54cd9bd 100644 --- a/drivers/thunderbolt/path.c +++ b/drivers/thunderbolt/path.c @@ -446,6 +446,19 @@ static int __tb_path_deactivate_hop(struct tb_port *port, int hop_index, return -ETIMEDOUT; } +/** + * tb_path_deactivate_hop() - Deactivate one path in path config space + * @port: Lane or protocol adapter + * @hop_index: HopID of the path to be cleared + * + * This deactivates or clears a single path config space entry at + * @hop_index. Returns %0 in success and negative errno otherwise. + */ +int tb_path_deactivate_hop(struct tb_port *port, int hop_index) +{ + return __tb_path_deactivate_hop(port, hop_index, true); +} + static void __tb_path_deactivate_hops(struct tb_path *path, int first_hop) { int i, res; diff --git a/drivers/thunderbolt/tb.h b/drivers/thunderbolt/tb.h index 551d2cf625cd..f41604c2c4dd 100644 --- a/drivers/thunderbolt/tb.h +++ b/drivers/thunderbolt/tb.h @@ -1154,6 +1154,7 @@ struct tb_path *tb_path_alloc(struct tb *tb, struct tb_port *src, int src_hopid, void tb_path_free(struct tb_path *path); int tb_path_activate(struct tb_path *path); void tb_path_deactivate(struct tb_path *path); +int tb_path_deactivate_hop(struct tb_port *port, int hop_index); bool tb_path_is_invalid(struct tb_path *path); bool tb_path_port_on_path(const struct tb_path *path, const struct tb_port *port); |