[Hyper-V] netvsc support to set MTU reservation from guest
| Affects | Status | Importance | Assigned to | Milestone | |
|---|---|---|---|---|---|
| linux (Ubuntu) |
Fix Released
|
Medium
|
Tim Gardner | ||
| Precise |
Invalid
|
Medium
|
Unassigned | ||
| Trusty |
Won't Fix
|
Medium
|
Unassigned | ||
| Vivid |
Fix Released
|
Medium
|
Tim Gardner | ||
| Wily |
Fix Released
|
Medium
|
Tim Gardner | ||
| linux-lts-trusty (Ubuntu) |
Won't Fix
|
Undecided
|
Unassigned | ||
| Precise |
Won't Fix
|
Undecided
|
Unassigned | ||
| linux-lts-utopic (Ubuntu) |
Fix Released
|
Undecided
|
Unassigned | ||
| Precise |
Invalid
|
Wishlist
|
Unassigned | ||
Bug Description
Please incorporate the following upstream commits (and necessary pre-requisites )to the 4.2 kernel into 15.10, 15.04, 14.04 (including HWE), and 12.04 (including HWE). Network throughput is improved with proper setting of MTU in virtualized environments.
hv_netvsc: Add support to set MTU reservation from guest side
When packet encapsulation is in use, the MTU needs to be reduced for
headroom reservation.
The existing code takes the updated MTU value only from the host side.
But vSwitch extensions, such as Open vSwitch, require the flexibility
to change the MTU to different values from within a guest during the
lifecycle of a vNIC, when the encapsulation protocol is changed. The
patch supports this kind of MTU changes.
hv_netvsc: Add close of RNDIS filter into change mtu call
The current change mtu call only stops tx before removing RNDIS filter.
In case ringbufer is not empty, the rndis_filter_
hang on removing the buffers.
This patch adds close of RNDIS filter before removing it, also a
gradual waiting loop until the ring is empty. The change_mtu hang
issue under heavy traffic is solved by this patch.
Related branches
| Brad Figg (brad-figg) wrote Missing required logs. | #1 |
| Changed in linux (Ubuntu): | |
| status: | New → Incomplete |
| Joshua R. Poulson (jrp) wrote | #2 |
| Changed in linux (Ubuntu): | |
| status: | Incomplete → Confirmed |
| Changed in linux (Ubuntu Wily): | |
| status: | Confirmed → Triaged |
| Changed in linux (Ubuntu Vivid): | |
| status: | New → Triaged |
| Changed in linux (Ubuntu Trusty): | |
| status: | New → Triaged |
| Changed in linux (Ubuntu Precise): | |
| status: | New → Triaged |
| Changed in linux (Ubuntu Wily): | |
| importance: | Undecided → Medium |
| Changed in linux (Ubuntu Vivid): | |
| importance: | Undecided → Medium |
| Changed in linux (Ubuntu Trusty): | |
| importance: | Undecided → Medium |
| Changed in linux (Ubuntu Precise): | |
| importance: | Undecided → Medium |
| tags: | added: kernel-hyper-v precise trusty vivid |
| tags: | added: kernel-da-key |
| no longer affects: | linux-lts-trusty (Ubuntu Wily) |
| no longer affects: | linux-lts-trusty (Ubuntu Vivid) |
| no longer affects: | linux-lts-trusty (Ubuntu Trusty) |
| Changed in linux (Ubuntu Precise): | |
| status: | Triaged → Invalid |
| Joshua R. Poulson (jrp) wrote | #3 |
| Changed in linux (Ubuntu Wily): | |
| assignee: | nobody → Tim Gardner (timg-tpi) |
| status: | Triaged → Fix Committed |
| Changed in linux (Ubuntu Vivid): | |
| assignee: | nobody → Tim Gardner (timg-tpi) |
| status: | Triaged → In Progress |
| Changed in linux-lts-utopic (Ubuntu): | |
| status: | New → Invalid |
| Changed in linux-lts-utopic (Ubuntu Precise): | |
| assignee: | nobody → Tim Gardner (timg-tpi) |
| status: | New → In Progress |
| Tim Gardner (timg-tpi) wrote | #4 |
| Changed in linux (Ubuntu Trusty): | |
| status: | Triaged → Won't Fix |
| Changed in linux-lts-trusty (Ubuntu): | |
| status: | New → Won't Fix |
| Changed in linux-lts-trusty (Ubuntu Precise): | |
| status: | New → Won't Fix |
| Changed in linux-lts-utopic (Ubuntu Precise): | |
| importance: | Undecided → Wishlist |
| Launchpad Janitor (janitor) wrote | #5 |
| Changed in linux (Ubuntu Wily): | |
| status: | Fix Committed → Fix Released |
| Changed in linux (Ubuntu Vivid): | |
| status: | In Progress → Fix Committed |
| Brad Figg (brad-figg) wrote | #6 |
| tags: | added: verification-needed-vivid |
| Ovidiu Rusu (orusu) wrote | #7 |
| tags: |
added: verification-done-vivid removed: verification-needed-vivid |
| Launchpad Janitor (janitor) wrote | #8 |
| Changed in linux-lts-utopic (Ubuntu): | |
| status: | Invalid → Fix Released |
| Launchpad Janitor (janitor) wrote | #9 |
| Changed in linux (Ubuntu Vivid): | |
| status: | Fix Committed → Fix Released |
| Changed in linux-lts-utopic (Ubuntu Precise): | |
| assignee: | Tim Gardner (timg-tpi) → nobody |
| status: | In Progress → Invalid |
This bug is missing log files that will aid in diagnosing the problem. From a terminal window please run:
apport-collect 1494431
and then change the status of the bug to 'Confirmed'.
If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.
This change has been made by an automated script, maintained by the Ubuntu Kernel Team.