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New smatch warnings:
net/netfilter/nf_tables_offload.c:316 nft_flow_offload_chain() warn: always true condition '(policy != -1) => (0-255 != (-1))'
Reported-by: kbuild test robot <lkp@intel.com>
Fixes: c9626a2cbdb2 ("netfilter: nf_tables: add hardware offload support")
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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If the net_device unregisters, clean up the offload rules before the
chain is destroy.
Signed-off-by: wenxu <wenxu@ucloud.cn>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Pass rule, chain and flow_rule object parameters to nft_flow_offload_rule
to reuse it.
Signed-off-by: wenxu <wenxu@ucloud.cn>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Pass chain and policy parameters to nft_flow_offload_chain to reuse it.
Signed-off-by: wenxu <wenxu@ucloud.cn>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Add __nft_offload_get_chain function to get basechain from device. This
function requires that caller holds the per-netns nftables mutex. This
patch implicitly fixes missing offload flags check and proper mutex from
nft_indr_block_cb().
Fixes: 9a32669fecfb ("netfilter: nf_tables_offload: support indr block call")
Signed-off-by: wenxu <wenxu@ucloud.cn>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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This patch adds support for packet mirroring and redirection. The
nft_fwd_dup_netdev_offload() function configures the flow_action object
for the fwd and the dup actions.
Extend nft_flow_rule_destroy() to release the net_device object when the
flow_rule object is released, since nft_fwd_dup_netdev_offload() bumps
the net_device reference counter.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Acked-by: wenxu <wenxu@ucloud.cn>
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Add nft_offload_init() and nft_offload_exit() function to deal with the
init and the exit path of the offload infrastructure.
Rename nft_indr_block_get_and_ing_cmd() to nft_indr_block_cb().
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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The nft_offload_ctx structure is much too large to put on the
stack:
net/netfilter/nf_tables_offload.c:31:23: error: stack frame size of 1200 bytes in function 'nft_flow_rule_create' [-Werror,-Wframe-larger-than=]
Use dynamic allocation here, as we do elsewhere in the same
function.
Fixes: c9626a2cbdb2 ("netfilter: nf_tables: add hardware offload support")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Merge conflict of mlx5 resolved using instructions in merge
commit 9566e650bf7fdf58384bb06df634f7531ca3a97e.
Signed-off-by: David S. Miller <davem@davemloft.net>
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This patch adds initial support for offloading basechains using the
priority range from 1 to 65535. This is restricting the netfilter
priority range to 16-bit integer since this is what most drivers assume
so far from tc. It should be possible to extend this range of supported
priorities later on once drivers are updated to support for 32-bit
integer priorities.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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nftable support indr-block call. It makes nftable an offload vlan
and tunnel device.
nft add table netdev firewall
nft add chain netdev firewall aclout { type filter hook ingress offload device mlx_pf0vf0 priority - 300 \; }
nft add rule netdev firewall aclout ip daddr 10.0.0.1 fwd to vlan0
nft add chain netdev firewall aclin { type filter hook ingress device vlan0 priority - 300 \; }
nft add rule netdev firewall aclin ip daddr 10.0.0.7 fwd to mlx_pf0vf0
Signed-off-by: wenxu <wenxu@ucloud.cn>
Acked-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This object stores the flow block callbacks that are attached to this
block. Update flow_block_cb_lookup() to take this new object.
This patch restores the block sharing feature.
Fixes: da3eeb904ff4 ("net: flow_offload: add list handling functions")
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This patch adds hardware offload support for nftables through the
existing netdev_ops->ndo_setup_tc() interface, the TC_SETUP_CLSFLOWER
classifier and the flow rule API. This hardware offload support is
available for the NFPROTO_NETDEV family and the ingress hook.
Each nftables expression has a new ->offload interface, that is used to
populate the flow rule object that is attached to the transaction
object.
There is a new per-table NFT_TABLE_F_HW flag, that is set on to offload
an entire table, including all of its chains.
This patch supports for basic metadata (layer 3 and 4 protocol numbers),
5-tuple payload matching and the accept/drop actions; this also includes
basechain hardware offload only.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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