> -----Original Message----- > From: Limonciello, Mario <Mario_Limonciello@xxxxxxxx> > Sent: Monday, June 22, 2020 9:31 AM > To: Andreas Noever; Michael Jamet; Mika Westerberg; Yehezkel Bernat > Cc: linux-usb@xxxxxxxxxxxxxxx; linux-kernel@xxxxxxxxxxxxxxx; Limonciello, > Mario > Subject: [PATCH 0/2] Allow breaking up Thunderbolt/USB4 updates > > Currently updates to Thunderbolt and USB4 controllers are fully atomic > actions. When writing into the non-active NVM nothing gets flushed to > the hardware until authenticate is sent. > > There has been some desire to improve the perceived performance of these > updates, particularly for userland that may perform the update upon > a performance sensitive time like logging out. > > So allow userland to flush the image to hardware at runtime, and then > allow authenticating the image at another time. > > For the Dell WD19TB some specific hardware capability exists that allows > extending this to automatically complete the update when unplugged. > Export that functionality to userspace as well. > > This patch series is done relative thunderbolt.git/next. > > Mario Limonciello (2): > thunderbolt: Add support for separating the flush to SPI and > authenticate > thunderbolt: Add support for authenticate on disconnect > > .../ABI/testing/sysfs-bus-thunderbolt | 24 +++++- > drivers/thunderbolt/Makefile | 1 + > drivers/thunderbolt/eeprom.c | 2 + > drivers/thunderbolt/lc.c | 14 ++++ > drivers/thunderbolt/quirks.c | 38 +++++++++ > drivers/thunderbolt/switch.c | 81 +++++++++++++++---- > drivers/thunderbolt/tb-quirks.h | 16 ++++ > drivers/thunderbolt/tb.h | 4 + > drivers/thunderbolt/tb_regs.h | 1 + > 9 files changed, 162 insertions(+), 19 deletions(-) > create mode 100644 drivers/thunderbolt/quirks.c > create mode 100644 drivers/thunderbolt/tb-quirks.h > > -- > 2.25.1 Just to connect the dots, here is the matching userspace changes for this change: https://github.com/fwupd/fwupd/pull/2204
