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| author | Mika Westerberg <mika.westerberg@linux.intel.com> | 2020-06-09 18:10:39 +0300 |
|---|---|---|
| committer | Mika Westerberg <mika.westerberg@linux.intel.com> | 2020-06-22 19:58:06 +0300 |
| commit | 53f13319d13197dd1f4c8ce5fc1ef4c32509b4e2 (patch) | |
| tree | acd975d0dfeec13293c2bea205b8378a40746d06 /include | |
| parent | 126764236e3557853c4208a70a08f5f69da8d897 (diff) | |
| download | linux-53f13319d13197dd1f4c8ce5fc1ef4c32509b4e2.tar.xz | |
thunderbolt: Get rid of E2E workaround
The end-to-end (E2E) workaround is needed for Falcon Ridge (TBT 2)
controller when E2E is enabled for both ends of the host-to-host
connection. However, we never supported full E2E in the first place so
this code is not necessary at the moment. Further this allows us to use
all available rings for data except ring 0 which is reserved for the
control path.
The complete E2E flow control is explained in the USB4 spec so we may
add it back later if needed but at least the networking driver seems to
work fine without, and the higher level stack, like TCP will retransmit
lost packets anyway.
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/thunderbolt.h | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/include/linux/thunderbolt.h b/include/linux/thunderbolt.h index ff397c0d5c07..5db2b11ab085 100644 --- a/include/linux/thunderbolt.h +++ b/include/linux/thunderbolt.h @@ -504,8 +504,6 @@ struct tb_ring { #define RING_FLAG_NO_SUSPEND BIT(0) /* Configure the ring to be in frame mode */ #define RING_FLAG_FRAME BIT(1) -/* Enable end-to-end flow control */ -#define RING_FLAG_E2E BIT(2) struct ring_frame; typedef void (*ring_cb)(struct tb_ring *, struct ring_frame *, bool canceled); |