thunderbolt: Allow router NVM authenticate separately

It may be useful if the actual NVM authentication can be delayed to be
run later, for instance when the user logs out. For this reason add a
new NVM operation (AUHENTICATE_ONLY) that just triggers the authentication
procedure over whatever was written to the NVM storage.

This is not supported with Thunderbolt 1-3 devices, though.

Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 2 insertions, 0 deletions

diff --git a/drivers/thunderbolt/tb.h b/drivers/thunderbolt/tb.h
index 863d80ad44ab..53f6bb85b178 100644
--- a/drivers/thunderbolt/tb.h
+++ b/drivers/thunderbolt/tb.h
@@ -61,6 +61,7 @@ struct tb_nvm {
 enum tb_nvm_write_ops {
 	WRITE_AND_AUTHENTICATE = 1,
 	WRITE_ONLY = 2,
+	AUTHENTICATE_ONLY = 3,
 };
 
 #define TB_SWITCH_KEY_SIZE		32
@@ -1049,6 +1050,7 @@ int usb4_switch_set_sleep(struct tb_switch *sw);
 int usb4_switch_nvm_sector_size(struct tb_switch *sw);
 int usb4_switch_nvm_read(struct tb_switch *sw, unsigned int address, void *buf,
 			 size_t size);
+int usb4_switch_nvm_set_offset(struct tb_switch *sw, unsigned int address);
 int usb4_switch_nvm_write(struct tb_switch *sw, unsigned int address,
 			  const void *buf, size_t size);
 int usb4_switch_nvm_authenticate(struct tb_switch *sw);