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| author | Xin Long <[email protected]> | 2021-07-25 17:42:51 +0000 |
|---|---|---|
| committer | David S. Miller <[email protected]> | 2021-07-25 22:06:02 +0000 |
| commit | eacf078cf4c7aa23e9591738511f142cc39b5186 (patch) | |
| tree | 0004a2401d2477cc7176caef1efa159af62df47f /drivers/gpu/drm/amd/amdgpu/amdgpu_ucode.c | |
| parent | sctp: improve the code for pmtu probe send and recv update (diff) | |
| download | kernel-eacf078cf4c7aa23e9591738511f142cc39b5186.tar.gz kernel-eacf078cf4c7aa23e9591738511f142cc39b5186.zip | |
sctp: send pmtu probe only if packet loss in Search Complete state
This patch is to introduce last_rtx_chunks into sctp_transport to detect
if there's any packet retransmission/loss happened by checking against
asoc's rtx_data_chunks in sctp_transport_pl_send().
If there is, namely, transport->last_rtx_chunks != asoc->rtx_data_chunks,
the pmtu probe will be sent out. Otherwise, increment the pl.raise_count
and return when it's in Search Complete state.
With this patch, if in Search Complete state, which is a long period, it
doesn't need to keep probing the current pmtu unless there's data packet
loss. This will save quite some traffic.
v1->v2:
- add the missing Fixes tag.
Fixes: 0dac127c0557 ("sctp: do black hole detection in search complete state")
Signed-off-by: Xin Long <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_ucode.c')
0 files changed, 0 insertions, 0 deletions