** Description changed:
- The bellow upstream commit fixes a bug in Ktls feature.
- It is applied cleanly above the ubuntu-focal tree and passed basic sanity
testing.
- We would like it to be backported ubuntu-focal
- Thanks,
- Amir
+ [IMPACT]
- commit 41b14fb8724d5a4b382a63cb4a1a61880347ccb8
- Author: Tariq Toukan <tar...@mellanox.com>
- Date: Mon Jun 22 23:26:04 2020 +0300
+ Clearing the sock TX queue in sk_set_socket() might cause unexpected
+ out-of-order transmit when called from sock_orphan(), as outstanding
+ packets can pick a different TX queue and bypass the ones already queued.
- net: Do not clear the sock TX queue in sk_set_socket()
-
- Clearing the sock TX queue in sk_set_socket() might cause unexpected
- out-of-order transmit when called from sock_orphan(), as outstanding
- packets can pick a different TX queue and bypass the ones already queued.
-
- This is undesired in general. More specifically, it breaks the in-order
- scheduling property guarantee for device-offloaded TLS sockets.
-
- Remove the call to sk_tx_queue_clear() in sk_set_socket(), and add it
- explicitly only where needed.
-
- Fixes: e022f0b4a03f ("net: Introduce sk_tx_queue_mapping")
- Signed-off-by: Tariq Toukan <tar...@mellanox.com>
- Reviewed-by: Boris Pismenny <bor...@mellanox.com>
- Signed-off-by: David S. Miller <da...@davemloft.net>
+ This is undesired in general. More specifically, it breaks the in-order
+ scheduling property guarantee for device-offloaded TLS sockets.
+
+ Remove the call to sk_tx_queue_clear() in sk_set_socket(), and add it
+ explicitly only where needed.
+
+
+ [FIXES]
+
+ e022f0b4a03f "net: Introduce sk_tx_queue_mapping"
+
+ This cleanly cherry picks into 5.4 from 5.8.
+
+ It can be checked out in my branch here:
+
+ https://git.launchpad.net/~bladernr/ubuntu/+source/linux/+git/focal
+ 1889625-mxl-ktls-bugfix
+
+ [REGRESSION RISK]
+
+
+ [TEST]
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https://bugs.launchpad.net/bugs/1889625
Title:
Bug fix for ktls feature
Status in linux package in Ubuntu:
In Progress
Status in linux source package in Focal:
In Progress
Bug description:
[IMPACT]
Clearing the sock TX queue in sk_set_socket() might cause unexpected
out-of-order transmit when called from sock_orphan(), as outstanding
packets can pick a different TX queue and bypass the ones already queued.
This is undesired in general. More specifically, it breaks the in-order
scheduling property guarantee for device-offloaded TLS sockets.
Remove the call to sk_tx_queue_clear() in sk_set_socket(), and add it
explicitly only where needed.
[FIXES]
e022f0b4a03f "net: Introduce sk_tx_queue_mapping"
This cleanly cherry picks into 5.4 from 5.8.
It can be checked out in my branch here:
https://git.launchpad.net/~bladernr/ubuntu/+source/linux/+git/focal
1889625-mxl-ktls-bugfix
[REGRESSION RISK]
[TEST]
To manage notifications about this bug go to:
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