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| author | Yehezkel Bernat <yehezkel.bernat@intel.com> | 2018-01-22 12:50:09 +0200 |
|---|---|---|
| committer | Mika Westerberg <mika.westerberg@linux.intel.com> | 2018-03-09 12:54:11 +0300 |
| commit | 14862ee308bbcaae0ac9927b6cbccccb51386b6c (patch) | |
| tree | 5052d4e77b83a46557e61c5e2e6c7af66e72e804 /drivers/thunderbolt/icm.c | |
| parent | 3080e197e936ab7cdcf66cacec22abe5c6c1007a (diff) | |
| download | linux-stable-14862ee308bbcaae0ac9927b6cbccccb51386b6c.tar.gz linux-stable-14862ee308bbcaae0ac9927b6cbccccb51386b6c.tar.bz2 linux-stable-14862ee308bbcaae0ac9927b6cbccccb51386b6c.zip | |
thunderbolt: Add 'boot' attribute for devices
In various cases, Thunderbolt device can be connected by ICM on boot
without waiting for approval from user. Most cases are related to
OEM-specific BIOS configurations. This information is interesting for
user-space as if the device isn't in SW ACL, it may create a friction in
the user experience where the device is automatically authorized if it's
connected on boot but requires an explicit user action if connected
after OS is up. User-space can use this information to suggest adding
the device to SW ACL for auto-authorization on later connections.
Signed-off-by: Yehezkel Bernat <yehezkel.bernat@intel.com>
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Diffstat (limited to 'drivers/thunderbolt/icm.c')
| -rw-r--r-- | drivers/thunderbolt/icm.c | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/drivers/thunderbolt/icm.c b/drivers/thunderbolt/icm.c index 5d3cd740b71f..bece5540b06b 100644 --- a/drivers/thunderbolt/icm.c +++ b/drivers/thunderbolt/icm.c @@ -402,7 +402,7 @@ static int icm_fr_disconnect_xdomain_paths(struct tb *tb, struct tb_xdomain *xd) static void add_switch(struct tb_switch *parent_sw, u64 route, const uuid_t *uuid, u8 connection_id, u8 connection_key, u8 link, u8 depth, enum tb_security_level security_level, - bool authorized) + bool authorized, bool boot) { struct tb_switch *sw; @@ -417,6 +417,7 @@ static void add_switch(struct tb_switch *parent_sw, u64 route, sw->depth = depth; sw->authorized = authorized; sw->security_level = security_level; + sw->boot = boot; /* Link the two switches now */ tb_port_at(route, parent_sw)->remote = tb_upstream_port(sw); @@ -431,7 +432,7 @@ static void add_switch(struct tb_switch *parent_sw, u64 route, static void update_switch(struct tb_switch *parent_sw, struct tb_switch *sw, u64 route, u8 connection_id, u8 connection_key, - u8 link, u8 depth) + u8 link, u8 depth, bool boot) { /* Disconnect from parent */ tb_port_at(tb_route(sw), parent_sw)->remote = NULL; @@ -445,6 +446,7 @@ static void update_switch(struct tb_switch *parent_sw, struct tb_switch *sw, sw->connection_key = connection_key; sw->link = link; sw->depth = depth; + sw->boot = boot; /* This switch still exists */ sw->is_unplugged = false; @@ -504,6 +506,7 @@ icm_fr_device_connected(struct tb *tb, const struct icm_pkg_header *hdr) bool authorized = false; struct tb_xdomain *xd; u8 link, depth; + bool boot; u64 route; int ret; @@ -513,6 +516,7 @@ icm_fr_device_connected(struct tb *tb, const struct icm_pkg_header *hdr) authorized = pkg->link_info & ICM_LINK_INFO_APPROVED; security_level = (pkg->hdr.flags & ICM_FLAGS_SLEVEL_MASK) >> ICM_FLAGS_SLEVEL_SHIFT; + boot = pkg->link_info & ICM_LINK_INFO_BOOT; if (pkg->link_info & ICM_LINK_INFO_REJECTED) { tb_info(tb, "switch at %u.%u was rejected by ICM firmware because topology limit exceeded\n", @@ -546,7 +550,7 @@ icm_fr_device_connected(struct tb *tb, const struct icm_pkg_header *hdr) if (sw->depth == depth && sw_phy_port == phy_port && !!sw->authorized == authorized) { update_switch(parent_sw, sw, route, pkg->connection_id, - pkg->connection_key, link, depth); + pkg->connection_key, link, depth, boot); tb_switch_put(sw); return; } @@ -595,7 +599,7 @@ icm_fr_device_connected(struct tb *tb, const struct icm_pkg_header *hdr) add_switch(parent_sw, route, &pkg->ep_uuid, pkg->connection_id, pkg->connection_key, link, depth, security_level, - authorized); + authorized, boot); tb_switch_put(parent_sw); } |