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thunderbolt: Introduce tb_port_is_nhi()

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This is useful if one needs to check if adapter (port) is the host
interface (NHI). Make tb_port_alloc_hopid() take advantage of this.

Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Mika Westerberg 2020-07-25 10:32:46 +03:00
parent 6de057ef91
commit a3cfebdc1b
2 changed files with 6 additions and 1 deletions
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2
drivers/thunderbolt/switch.c
View File

@ -789,7 +789,7 @@ static int tb_port_alloc_hopid(struct tb_port *port, bool in, int min_hopid,
* NHI can use HopIDs 1-max for other adapters HopIDs 0-7 are
* reserved.
*/
if (port->config.type != TB_TYPE_NHI && min_hopid < TB_PATH_MIN_HOPID)
if (!tb_port_is_nhi(port) && min_hopid < TB_PATH_MIN_HOPID)
min_hopid = TB_PATH_MIN_HOPID;
if (max_hopid < 0 || max_hopid > port_max_hopid)

5
drivers/thunderbolt/tb.h
View File

@ -464,6 +464,11 @@ static inline bool tb_port_is_null(const struct tb_port *port)
return port && port->port && port->config.type == TB_TYPE_PORT;
}
static inline bool tb_port_is_nhi(const struct tb_port *port)
{
return port && port->config.type == TB_TYPE_NHI;
}
static inline bool tb_port_is_pcie_down(const struct tb_port *port)
{
return port && port->config.type == TB_TYPE_PCIE_DOWN;