Public bug reported:
[Impact]
* Include patches to enable TCPDirect. This is considered a v1 implementation
while Google works to
upsteam a v2 implementation, hence the "UBUNTU: SAUCE: (no-up)"
classification.
[Fix]
d1016eee0b1a ("UBUNTU: SAUCE: (no-up) UPSTREAM: tcp: derive delack_max from
rto_min")
10364f0d83ee ("UBUNTU: SAUCE: (no-up) gve: Add retry logic for recoverable
adminq errors")
403fb6f43a7c ("UBUNTU: SAUCE: (no-up) tcp: defer regular ACK while processing
socket backlog")
be97d51d24da ("UBUNTU: SAUCE: (no-up) gve: Enable header-split without
gve_close/gve_open")
499a0ec31c74 ("UBUNTU: SAUCE: (no-up) gve: fix rx issues for skb free and
append frags")
89b4d1e69fac ("UBUNTU: SAUCE: (no-up) net: fix silent put_cmsg() failures")
d025ece61dab ("UBUNTU: SAUCE: (no-up) tcp: get rid of sysctl_tcp_adv_win_scale")
d1380ff2f4e3 ("UBUNTU: SAUCE: (no-up) gve: Add tx watchdog to avoid race
condition on miss path")
a4bc2e0cd1a3 ("UBUNTU: SAUCE: (no-up) net-tcp_5k_mtu: force wscale >= 12 for
active flows")
bbe85e8e856c ("UBUNTU: SAUCE: (no-up) net-tcp_5k_mtu: force wscale >= 12 for 4K
MTU TCP flows")
7d5f15f733e8 ("UBUNTU: SAUCE: (no-up) dma-buf: fix int overflow")
22668842a913 ("UBUNTU: SAUCE: (no-up) gve: add flow steering and rss reset when
teardown device resources")
18e66e5d9ac4 ("UBUNTU: SAUCE: (no-up) net: create skb_frags_not_readable()
helper")
5d81162de488 ("UBUNTU: SAUCE: (no-up) net: add missing skb->devmem checks")
cf0bcfdf9f87 ("UBUNTU: SAUCE: (no-up) net: remove devmem check from
__pskb_copy_fclone()")
9ca03b5c36c7 ("UBUNTU: SAUCE: (no-up) net: allow tcp coallapsing and
coallescing for devmem skbs")
030aef8b0fd2 ("UBUNTU: SAUCE: (no-up) net: skb_store_bits() should succeed on
devmem header")
6aaf939fb49e ("UBUNTU: SAUCE: (no-up) net: fix skb_split unnecessarily setting
skb->devmem")
51e12a8201a1 ("UBUNTU: SAUCE: (no-up) net: skb_copy_bits() should be able to
copy devmem header")
ea8a78e040f5 ("UBUNTU: SAUCE: (no-up) net: fix memory leaks due to skb->devmem
checks")
1fcd891606c0 ("UBUNTU: SAUCE: (no-up) net: fix snaplen for devmem packets")
e4a4e05f4831 ("UBUNTU: SAUCE: (no-up) net: keep track and avoid access of skb
containing dma-buf pages.")
424871c3c564 ("UBUNTU: SAUCE: (no-up) gve: implement device memory socket data
path")
4f8668ee4cdb ("UBUNTU: SAUCE: (no-up) gve: implement devmem socket stats")
abe1772b0e39 ("UBUNTU: SAUCE: (no-up) gve: add rss support")
c08a1adb6130 ("UBUNTU: SAUCE: (no-up) gve: add flow steering support")
ffa842923ad6 ("UBUNTU: SAUCE: (no-up) gve: Add header split support")
940527385c4c ("UBUNTU: SAUCE: (no-up) lakitu config: enable TCP Direct configs")
ebfa162318f8 ("UBUNTU: SAUCE: (no-up) tcp, cos-only: revert changes to
skb_zerocopy_iter_stream")
b87d0b0e659a ("UBUNTU: SAUCE: (no-up) tcp: let sendmsg() take file descriptors
via cmsg to enable devmem Tx")
1d523c425a8c ("UBUNTU: SAUCE: (no-up) net: add SO_DEVMEM_DONTNEED setsockopt to
release pages")
3e34b0936884 ("UBUNTU: SAUCE: (no-up) net: backport fixes to devmem TCP rx")
446d7a742177 ("UBUNTU: SAUCE: (no-up) tcp: implement RX path for devmem
sockets")
109f2e3feb98 ("UBUNTU: SAUCE: (no-up) net: use get_file_rcu() instead of
get_file for __netdev_rxq_alloc_page_from_dmabuf_pool")
0d5117d4ea53 ("UBUNTU: SAUCE: (no-up) net: add netdev_rxq_alloc_page and
skb->devmem")
d0d273544148 ("UBUNTU: SAUCE: (no-up) dmabuf: add ioctl that binds dmabuf
pagepool to a netdevice")
05c81288f77b ("UBUNTU: SAUCE: (no-up) dma-buf: fix int overflow in addr
calculation")
46366a3326d9 ("UBUNTU: SAUCE: (no-up) dma-buf: create struct pages backing a
dma-bu")
[Test Case]
* Compile tested
* Boot tested
* Ran ubuntu_kernel_selftests and ubuntu_performance_stress_ng test suites
* Tested by Google
[Other Info]
* Bulk of patchset came from
https://cos.googlesource.com/third_party/kernel/+log/refs/heads/tcpd/R105,
but some backports were given in SalesForce case below.
* SF: #00359122
[Where things could go wrong]
* Most changes target Google gve driver specifically.
* Some required updates to dma and network implementation to enable new API.
* Could lead to DMA or network instabilities
** Affects: linux-gcp-5.15 (Ubuntu)
Importance: Undecided
Status: New
** Affects: linux-gcp-5.15 (Ubuntu Focal)
Importance: Undecided
Status: New
** Also affects: linux-gcp-5.15 (Ubuntu Focal)
Importance: Undecided
Status: New
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux-gcp-5.15 in Ubuntu.
https://bugs.launchpad.net/bugs/2037087
Title:
TCPDirect patches
Status in linux-gcp-5.15 package in Ubuntu:
New
Status in linux-gcp-5.15 source package in Focal:
New
Bug description:
[Impact]
* Include patches to enable TCPDirect. This is considered a v1 implementation
while Google works to
upsteam a v2 implementation, hence the "UBUNTU: SAUCE: (no-up)"
classification.
[Fix]
d1016eee0b1a ("UBUNTU: SAUCE: (no-up) UPSTREAM: tcp: derive delack_max from
rto_min")
10364f0d83ee ("UBUNTU: SAUCE: (no-up) gve: Add retry logic for recoverable
adminq errors")
403fb6f43a7c ("UBUNTU: SAUCE: (no-up) tcp: defer regular ACK while processing
socket backlog")
be97d51d24da ("UBUNTU: SAUCE: (no-up) gve: Enable header-split without
gve_close/gve_open")
499a0ec31c74 ("UBUNTU: SAUCE: (no-up) gve: fix rx issues for skb free and
append frags")
89b4d1e69fac ("UBUNTU: SAUCE: (no-up) net: fix silent put_cmsg() failures")
d025ece61dab ("UBUNTU: SAUCE: (no-up) tcp: get rid of
sysctl_tcp_adv_win_scale")
d1380ff2f4e3 ("UBUNTU: SAUCE: (no-up) gve: Add tx watchdog to avoid race
condition on miss path")
a4bc2e0cd1a3 ("UBUNTU: SAUCE: (no-up) net-tcp_5k_mtu: force wscale >= 12 for
active flows")
bbe85e8e856c ("UBUNTU: SAUCE: (no-up) net-tcp_5k_mtu: force wscale >= 12 for
4K MTU TCP flows")
7d5f15f733e8 ("UBUNTU: SAUCE: (no-up) dma-buf: fix int overflow")
22668842a913 ("UBUNTU: SAUCE: (no-up) gve: add flow steering and rss reset
when teardown device resources")
18e66e5d9ac4 ("UBUNTU: SAUCE: (no-up) net: create skb_frags_not_readable()
helper")
5d81162de488 ("UBUNTU: SAUCE: (no-up) net: add missing skb->devmem checks")
cf0bcfdf9f87 ("UBUNTU: SAUCE: (no-up) net: remove devmem check from
__pskb_copy_fclone()")
9ca03b5c36c7 ("UBUNTU: SAUCE: (no-up) net: allow tcp coallapsing and
coallescing for devmem skbs")
030aef8b0fd2 ("UBUNTU: SAUCE: (no-up) net: skb_store_bits() should succeed on
devmem header")
6aaf939fb49e ("UBUNTU: SAUCE: (no-up) net: fix skb_split unnecessarily
setting skb->devmem")
51e12a8201a1 ("UBUNTU: SAUCE: (no-up) net: skb_copy_bits() should be able to
copy devmem header")
ea8a78e040f5 ("UBUNTU: SAUCE: (no-up) net: fix memory leaks due to
skb->devmem checks")
1fcd891606c0 ("UBUNTU: SAUCE: (no-up) net: fix snaplen for devmem packets")
e4a4e05f4831 ("UBUNTU: SAUCE: (no-up) net: keep track and avoid access of skb
containing dma-buf pages.")
424871c3c564 ("UBUNTU: SAUCE: (no-up) gve: implement device memory socket
data path")
4f8668ee4cdb ("UBUNTU: SAUCE: (no-up) gve: implement devmem socket stats")
abe1772b0e39 ("UBUNTU: SAUCE: (no-up) gve: add rss support")
c08a1adb6130 ("UBUNTU: SAUCE: (no-up) gve: add flow steering support")
ffa842923ad6 ("UBUNTU: SAUCE: (no-up) gve: Add header split support")
940527385c4c ("UBUNTU: SAUCE: (no-up) lakitu config: enable TCP Direct
configs")
ebfa162318f8 ("UBUNTU: SAUCE: (no-up) tcp, cos-only: revert changes to
skb_zerocopy_iter_stream")
b87d0b0e659a ("UBUNTU: SAUCE: (no-up) tcp: let sendmsg() take file
descriptors via cmsg to enable devmem Tx")
1d523c425a8c ("UBUNTU: SAUCE: (no-up) net: add SO_DEVMEM_DONTNEED setsockopt
to release pages")
3e34b0936884 ("UBUNTU: SAUCE: (no-up) net: backport fixes to devmem TCP rx")
446d7a742177 ("UBUNTU: SAUCE: (no-up) tcp: implement RX path for devmem
sockets")
109f2e3feb98 ("UBUNTU: SAUCE: (no-up) net: use get_file_rcu() instead of
get_file for __netdev_rxq_alloc_page_from_dmabuf_pool")
0d5117d4ea53 ("UBUNTU: SAUCE: (no-up) net: add netdev_rxq_alloc_page and
skb->devmem")
d0d273544148 ("UBUNTU: SAUCE: (no-up) dmabuf: add ioctl that binds dmabuf
pagepool to a netdevice")
05c81288f77b ("UBUNTU: SAUCE: (no-up) dma-buf: fix int overflow in addr
calculation")
46366a3326d9 ("UBUNTU: SAUCE: (no-up) dma-buf: create struct pages backing a
dma-bu")
[Test Case]
* Compile tested
* Boot tested
* Ran ubuntu_kernel_selftests and ubuntu_performance_stress_ng test suites
* Tested by Google
[Other Info]
* Bulk of patchset came from
https://cos.googlesource.com/third_party/kernel/+log/refs/heads/tcpd/R105,
but some backports were given in SalesForce case below.
* SF: #00359122
[Where things could go wrong]
* Most changes target Google gve driver specifically.
* Some required updates to dma and network implementation to enable new API.
* Could lead to DMA or network instabilities
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