[SRU][B:linux-azure-4.15][PULL v2] hv_netvsc: Add XDP support
William Breathitt Gray
william.gray at canonical.com
Thu Jan 28 11:35:15 UTC 2021
Changes in v2:
- Merge conflicts resolved involving 'hash_info' introduction in the
following patches:
* "hv_netvsc: pass netvsc_device to receive callback"
* "hv_netvsc: Add support for LRO/RSC in the vSwitch"
* "hv_netvsc: Add XDP support"
BugLink: https://bugs.launchpad.net/bugs/1877654
[Impact]
Microsoft would like to request the following three patches in all releases supported on Azure:
351e1581395fc (“hv_netvsc: Add XDP support”)
12fa74383ed4d (“hv_netvsc: Update document for XDP support”)
184367dce4f7 (“hv_netvsc: Fix XDP refcnt for synthetic and VF NICs”)
These patches add support of XDP in native mode to the hv_netvsc driver, and
transparently sets the XDP program on the associated VF NIC as well.
[Regression Potential]
The backport to Bionic:linux-azure-4.15 required a lot of context
adjustments. Regression potentials are spread across a number of files
and drivers. Most adjustments were trivial, but the changes in
netvsc_drv.c should be kept an eye on. In particular, if a regression
occurs it will likely happen in the netvsc_alloc_recv_skb(),
netvsc_recv_callback(), or netvsc_devinfo_get() functions due to the
context difference of these areas compared to the original patch.
In general, Linux 4.15 was missing key code for XDP. As such, many
prelimary commit backports were required to pull in that support before
it could be added to hv_netvsc driver in the primary backports.
[Miscellaneous]
The 5.4 version is already released so we do not need to worry about
that series.
Backports of the "xdp: new XDP rx-queue info concept" patchset and "XDP
redirect memory return API" patchset patches are included to add support
for the XDP API:
https://patchwork.ozlabs.org/project/netdev/cover/151497504273.18176.10177133999720101758.stgit@firesoul/
https://patchwork.ozlabs.org/project/netdev/cover/152397622657.20272.10121948713784224943.stgit@firesoul/
William Breathitt Gray
-----
The following changes since commit 822cd876f23c1e6809e563c5c396216bdb131880:
UBUNTU: [Config] azure: Disable ATARI_PARTITION (2021-01-25 22:29:25 -0700)
are available in the Git repository at:
git://git.launchpad.net/~vilhelm-gray/ubuntu/+source/linux/+git/sf277232 sf277232
for you to fetch changes up to c82437de8ba75d84a33e070b538e9e2f5ad0b3f4:
hv_netvsc: Fix XDP refcnt for synthetic and VF NICs (2021-01-27 08:05:28 -0500)
----------------------------------------------------------------
Björn Töpel (5):
i40e: add support for XDP_REDIRECT
xsk: add user memory registration support sockopt
xsk: add Rx queue setup and mmap support
xsk: add Rx receive functions and poll support
xdp: add MEM_TYPE_ZERO_COPY
Haiyang Zhang (5):
hv_netvsc: Add support for LRO/RSC in the vSwitch
hv_netvsc: Refactor assignments of struct netvsc_device_info
hv_netvsc: Add XDP support
hv_netvsc: Update document for XDP support
hv_netvsc: Fix XDP refcnt for synthetic and VF NICs
Jason Wang (3):
tun/tap: use ptr_ring instead of skb_array
tuntap: XDP transmission
tuntap: XDP_TX can use native XDP
Jesper Dangaard Brouer (24):
xdp: base API for new XDP rx-queue info concept
ixgbe: setup xdp_rxq_info
xdp/qede: setup xdp_rxq_info and intro xdp_rxq_info_is_reg
tun: setup xdp_rxq_info
virtio_net: setup xdp_rxq_info
xdp: generic XDP handling of xdp_rxq_info
net: avoid including xdp.h in filter.h
virtio_net: fix ndo_xdp_xmit crash towards dev not ready for XDP
xdp: introduce xdp_return_frame API and use in cpumap
ixgbe: use xdp_return_frame API
xdp: move struct xdp_buff from filter.h to xdp.h
xdp: introduce a new xdp_frame type
tun: convert to use generic xdp_frame and xdp_return_frame API
virtio_net: convert to use generic xdp_frame and xdp_return_frame API
bpf: cpumap convert to use generic xdp_frame
i40e: convert to use generic xdp_frame and xdp_return_frame API
xdp: rhashtable with allocator ID to pointer mapping
page_pool: refurbish version of page_pool code
xdp: allow page_pool as an allocator type in xdp_return_frame
xdp: transition into using xdp_frame for return API
xdp: transition into using xdp_frame for ndo_xdp_xmit
bpf: devmap introduce dev_map_enqueue
bpf: devmap prepare xdp frames for bulking
xdp: introduce xdp_return_frame_rx_napi
Magnus Karlsson (2):
xsk: add umem fill queue support and mmap
xsk: add support for bind for Rx
Stephen Hemminger (1):
hv_netvsc: pass netvsc_device to receive callback
Documentation/networking/netvsc.txt | 21 +
debian.azure-4.15/config/config.common.ubuntu | 1 +
drivers/net/ethernet/intel/i40e/i40e_main.c | 2 +
drivers/net/ethernet/intel/i40e/i40e_txrx.c | 103 ++++-
drivers/net/ethernet/intel/i40e/i40e_txrx.h | 3 +
drivers/net/ethernet/intel/ixgbe/ixgbe.h | 5 +-
drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c | 4 +
drivers/net/ethernet/intel/ixgbe/ixgbe_main.c | 48 ++-
drivers/net/ethernet/mellanox/mlx5/core/Kconfig | 1 +
drivers/net/ethernet/mellanox/mlx5/core/en_rx.c | 1 +
drivers/net/ethernet/qlogic/qede/qede.h | 2 +
drivers/net/ethernet/qlogic/qede/qede_fp.c | 1 +
drivers/net/ethernet/qlogic/qede/qede_main.c | 10 +
drivers/net/hyperv/Makefile | 2 +-
drivers/net/hyperv/hyperv_net.h | 71 +++-
drivers/net/hyperv/netvsc.c | 48 ++-
drivers/net/hyperv/netvsc_bpf.c | 218 ++++++++++
drivers/net/hyperv/netvsc_drv.c | 339 +++++++++++-----
drivers/net/hyperv/rndis_filter.c | 99 ++++-
drivers/net/tap.c | 42 +-
drivers/net/tun.c | 291 ++++++++++---
drivers/net/virtio_net.c | 89 ++--
drivers/vhost/net.c | 53 ++-
include/linux/bpf.h | 16 +-
include/linux/filter.h | 24 +-
include/linux/if_tap.h | 6 +-
include/linux/if_tun.h | 21 +-
include/linux/netdevice.h | 6 +-
include/net/page_pool.h | 144 +++++++
include/net/xdp.h | 143 +++++++
include/net/xdp_sock.h | 58 +++
include/trace/events/xdp.h | 9 +-
include/uapi/linux/if_xdp.h | 76 ++++
kernel/bpf/cpumap.c | 132 +++---
kernel/bpf/devmap.c | 103 ++++-
net/Kconfig | 3 +
net/Makefile | 1 +
net/core/Makefile | 3 +-
net/core/dev.c | 69 +++-
net/core/filter.c | 14 +-
net/core/page_pool.c | 317 +++++++++++++++
net/core/xdp.c | 372 +++++++++++++++++
net/xdp/Makefile | 2 +
net/xdp/xdp_umem.c | 255 ++++++++++++
net/xdp/xdp_umem.h | 66 +++
net/xdp/xdp_umem_props.h | 23 ++
net/xdp/xsk.c | 494 +++++++++++++++++++++++
net/xdp/xsk_queue.c | 73 ++++
net/xdp/xsk_queue.h | 151 +++++++
49 files changed, 3615 insertions(+), 420 deletions(-)
create mode 100644 drivers/net/hyperv/netvsc_bpf.c
create mode 100644 include/net/page_pool.h
create mode 100644 include/net/xdp.h
create mode 100644 include/net/xdp_sock.h
create mode 100644 include/uapi/linux/if_xdp.h
create mode 100644 net/core/page_pool.c
create mode 100644 net/core/xdp.c
create mode 100644 net/xdp/Makefile
create mode 100644 net/xdp/xdp_umem.c
create mode 100644 net/xdp/xdp_umem.h
create mode 100644 net/xdp/xdp_umem_props.h
create mode 100644 net/xdp/xsk.c
create mode 100644 net/xdp/xsk_queue.c
create mode 100644 net/xdp/xsk_queue.h
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