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2023-08-06tcp: set TCP_KEEPINTVL locklesslyEric Dumazet1-8/+2
tp->keepalive_intvl can be set locklessly, readers are already taking care of this field being potentially set by other threads. Signed-off-by: Eric Dumazet <edumazet@google.com> Acked-by: Soheil Hassas Yeganeh <soheil@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2023-08-06tcp: set TCP_USER_TIMEOUT locklesslyEric Dumazet3-29/+33
icsk->icsk_user_timeout can be set locklessly, if all read sides use READ_ONCE(). Signed-off-by: Eric Dumazet <edumazet@google.com> Acked-by: Soheil Hassas Yeganeh <soheil@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2023-08-06tcp: set TCP_SYNCNT locklesslyEric Dumazet2-12/+12
icsk->icsk_syn_retries can safely be set without locking the socket. We have to add READ_ONCE() annotations in tcp_fastopen_synack_timer() and tcp_write_timeout(). Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2023-08-05tcp: Update stale comment for MD5 in tcp_parse_options().Kuniyuki Iwashima1-3/+2
Since commit 9ea88a153001 ("tcp: md5: check md5 signature without socket lock"), the MD5 option is checked in tcp_v[46]_rcv(). Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com> Reviewed-by: Eric Dumazet <edumazet@google.com> Link: https://lore.kernel.org/r/20230803224552.69398-3-kuniyu@amazon.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-08-05tcp: Disable header prediction for MD5 flow.Kuniyuki Iwashima2-7/+0
TCP socket saves the minimum required header length in tcp_header_len of struct tcp_sock, and later the value is used in __tcp_fast_path_on() to generate a part of TCP header in tcp_sock(sk)->pred_flags. In tcp_rcv_established(), if the incoming packet has the same pattern with pred_flags, we enter the fast path and skip full option parsing. The MD5 option is parsed in tcp_v[46]_rcv(), so we need not parse it again later in tcp_rcv_established() unless other options exist. We add TCPOLEN_MD5SIG_ALIGNED to tcp_header_len in two paths to avoid the slow path. For passive open connections with MD5, we add TCPOLEN_MD5SIG_ALIGNED to tcp_header_len in tcp_create_openreq_child() after 3WHS. On the other hand, we do it in tcp_connect_init() for active open connections. However, the value is overwritten while processing SYN+ACK or crossed SYN in tcp_rcv_synsent_state_process(). These two cases will have the wrong value in pred_flags and never go into the fast path. We could update tcp_header_len in tcp_rcv_synsent_state_process(), but a test with slightly modified netperf which uses MD5 for each flow shows that the slow path is actually a bit faster than the fast path. On c5.4xlarge EC2 instance (16 vCPU, 32 GiB mem) $ for i in {1..10}; do ./super_netperf $(nproc) -H localhost -l 10 -- -m 256 -M 256; done Avg of 10 * 36e68eadd303 : 10.376 Gbps * all fast path : 10.374 Gbps (patch v2, See Link) * all slow path : 10.394 Gbps The header prediction is not worth adding complexity for MD5, so let's disable it for MD5. Link: https://lore.kernel.org/netdev/20230803042214.38309-1-kuniyu@amazon.com/ Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com> Reviewed-by: Eric Dumazet <edumazet@google.com> Link: https://lore.kernel.org/r/20230803224552.69398-2-kuniyu@amazon.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-08-05net: phy: move marking PHY on SFP module into SFP codeRussell King (Oracle)2-2/+3
Move marking the PHY as being on a SFP module into the SFP code between getting the PHY device (and thus initialising the phy_device structure) and registering the discovered device. This means that PHY drivers can use phy_on_sfp() in their match and get_features methods. Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk> Link: https://lore.kernel.org/r/E1qRaga-001vKt-8X@rmk-PC.armlinux.org.uk Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-08-05mlxsw: spectrum: Remove unused function declarationsYue Haibing2-9/+0
Commit c3d2ed93b14d ("mlxsw: Remove old parsing depth infrastructure") left behind mlxsw_sp_nve_inc_parsing_depth_get()/mlxsw_sp_nve_inc_parsing_depth_put(). And commit 532b49e41e64 ("mlxsw: spectrum_span: Derive SBIB from maximum port speed & MTU") remove mlxsw_sp_span_port_mtu_update()/mlxsw_sp_span_speed_update_work() but leave the declarations. Signed-off-by: Yue Haibing <yuehaibing@huawei.com> Reviewed-by: Ido Schimmel <idosch@nvidia.com> Link: https://lore.kernel.org/r/20230803142047.42660-1-yuehaibing@huawei.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-08-05ixgbevf: Remove unused function declarationsYue Haibing1-3/+0
ixgbe_napi_add_all()/ixgbe_napi_del_all() are declared but never implemented in commit 92915f71201b ("ixgbevf: Driver main and ethool interface module and main header") Signed-off-by: Yue Haibing <yuehaibing@huawei.com> Reviewed-by: Simon Horman <horms@kernel.org> Link: https://lore.kernel.org/r/20230803141904.15316-1-yuehaibing@huawei.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-08-05af_vsock: Remove unused declaration vsock_release_pending()/vsock_init_tap()Yue Haibing1-2/+0
Commit d021c344051a ("VSOCK: Introduce VM Sockets") declared but never implemented vsock_release_pending(). Also vsock_init_tap() never implemented since introduction in commit 531b374834c8 ("VSOCK: Add vsockmon tap functions"). Signed-off-by: Yue Haibing <yuehaibing@huawei.com> Reviewed-by: Simon Horman <horms@kernel.org> Reviewed-by: Stefano Garzarella <sgarzare@redhat.com> Link: https://lore.kernel.org/r/20230803134507.22660-1-yuehaibing@huawei.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-08-05net: 802: Remove unused function declarationsYue Haibing1-3/+0
Commit d8d9ba8dc9c7 ("net: 802: remove dead leftover after ipx driver removal") remove these implementations but leave the declarations. Signed-off-by: Yue Haibing <yuehaibing@huawei.com> Reviewed-by: Simon Horman <horms@kernel.org> Link: https://lore.kernel.org/r/20230803135424.41664-1-yuehaibing@huawei.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-08-05tcp_metrics: hash table allocation cleanupEric Dumazet1-12/+7
After commit 098a697b497e ("tcp_metrics: Use a single hash table for all network namespaces.") we can avoid calling tcp_net_metrics_init() for each new netns. Instead, rename tcp_net_metrics_init() to tcp_metrics_hash_alloc(), and move it to __init section. Also move tcpmhash_entries to __initdata section. Signed-off-by: Eric Dumazet <edumazet@google.com> Reviewed-by: Simon Horman <horms@kernel.org> Reviewed-by: Kuniyuki Iwashima <kuniyu@amazon.com> Link: https://lore.kernel.org/r/20230803135417.2716879-1-edumazet@google.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-08-05net: hns3: Remove unused function declarationsYue Haibing2-5/+0
Commit 1e6e76101fd9 ("net: hns3: configure promisc mode for VF asynchronously") left behind hclge_inform_vf_promisc_info() declaration. And commit 68c0a5c70614 ("net: hns3: Add HNS3 IMP(Integrated Mgmt Proc) Cmd Interface Support") declared but never implemented hclge_cmd_mdio_write() and hclge_cmd_mdio_read(). Signed-off-by: Yue Haibing <yuehaibing@huawei.com> Reviewed-by: Simon Horman <horms@kernel.org> Link: https://lore.kernel.org/r/20230803135138.37456-1-yuehaibing@huawei.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-08-05net: llc: Remove unused function declarationsYue Haibing2-2/+0
llc_conn_ac_send_i_rsp_as_ack() and llc_conn_ev_sendack_tmr_exp() are never implemented since beginning of git history. Signed-off-by: Yue Haibing <yuehaibing@huawei.com> Reviewed-by: Simon Horman <horms@kernel.org> Link: https://lore.kernel.org/r/20230803134747.41512-1-yuehaibing@huawei.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-08-04devlink: use generated split ops and remove duplicated commands from small opsJiri Pirko3-16/+4
Do the switch and use generated split ops for get and info_get commands. Remove those from small ops array. Signed-off-by: Jiri Pirko <jiri@nvidia.com> Reviewed-by: Jakub Kicinski <kuba@kernel.org> Link: https://lore.kernel.org/r/20230803111340.1074067-13-jiri@resnulli.us Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-08-04devlink: include the generated netlink headerJiri Pirko1-9/+2
Put the newly added generated header to the include list. Remove the duplicated temporary function prototypes. Signed-off-by: Jiri Pirko <jiri@nvidia.com> Reviewed-by: Jakub Kicinski <kuba@kernel.org> Link: https://lore.kernel.org/r/20230803111340.1074067-12-jiri@resnulli.us Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-08-04devlink: add split ops generated according to specJiri Pirko4-1/+99
Improve the existing devlink spec in order to serve as a source for generation of valid devlink split ops for the existing commands. Add the generated sources. Node that the policies are narrowed down only to the attributes that are actually parsed. The dont-validate-strict parsing policy makes sure that other possibly passed garbage attributes from userspace are ignored during validation. Signed-off-by: Jiri Pirko <jiri@nvidia.com> Reviewed-by: Jakub Kicinski <kuba@kernel.org> Link: https://lore.kernel.org/r/20230803111340.1074067-11-jiri@resnulli.us Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-08-04netlink: specs: devlink: add info-get dump opJiri Pirko3-1/+66
Add missing dump op for info-get command and re-generate related devlink-user.[ch] code. Signed-off-by: Jiri Pirko <jiri@nvidia.com> Reviewed-by: Jakub Kicinski <kuba@kernel.org> Link: https://lore.kernel.org/r/20230803111340.1074067-10-jiri@resnulli.us Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-08-04devlink: un-static devlink_nl_pre/post_doit()Jiri Pirko2-4/+8
To be prepared for the follow-up generated split ops addition, make the functions devlink_nl_pre_doit() and devlink_nl_post_doit() usable outside of netlink.c. Introduce temporary prototypes which are going to be removed once the generated header will be included. Signed-off-by: Jiri Pirko <jiri@nvidia.com> Reviewed-by: Jakub Kicinski <kuba@kernel.org> Link: https://lore.kernel.org/r/20230803111340.1074067-9-jiri@resnulli.us Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-08-04devlink: introduce couple of dumpit callbacks for split opsJiri Pirko4-27/+37
Introduce couple of dumpit callbacks for generated split ops. Have them as a thin wrapper around iteration function and allow to pass dump_one() function pointer directly without need to store in devlink_cmd structs. Signed-off-by: Jiri Pirko <jiri@nvidia.com> Reviewed-by: Jakub Kicinski <kuba@kernel.org> Link: https://lore.kernel.org/r/20230803111340.1074067-8-jiri@resnulli.us Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-08-04devlink: rename couple of doit netlink callbacks to match generated namesJiri Pirko3-6/+6
The generated names of the doit netlink callback are missing "cmd" in their names. Change names to be ready to switch to generated split ops header. Signed-off-by: Jiri Pirko <jiri@nvidia.com> Reviewed-by: Jakub Kicinski <kuba@kernel.org> Link: https://lore.kernel.org/r/20230803111340.1074067-7-jiri@resnulli.us Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-08-04devlink: rename devlink_nl_ops to devlink_nl_small_opsJiri Pirko3-4/+4
In order to avoid name collision with the generated split ops array which is going to be introduced as a follow-up patch, rename the existing ops array to devlink_nl_small_ops. Signed-off-by: Jiri Pirko <jiri@nvidia.com> Reviewed-by: Jakub Kicinski <kuba@kernel.org> Link: https://lore.kernel.org/r/20230803111340.1074067-6-jiri@resnulli.us Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-08-04ynl-gen-c.py: render netlink policies static for split opsJiri Pirko1-2/+6
When policies are rendered for split ops, they are consumed in the same file. No need to expose them for user outside, make them static. Signed-off-by: Jiri Pirko <jiri@nvidia.com> Reviewed-by: Jakub Kicinski <kuba@kernel.org> Link: https://lore.kernel.org/r/20230803111340.1074067-5-jiri@resnulli.us Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-08-04ynl-gen-c.py: allow directional model for kernel modeJiri Pirko1-1/+1
Directional model limitation is only applicable for uapi mode. For kernel mode, the code is generated correctly using right cmd values for do/dump requests. Lift the limitation. Signed-off-by: Jiri Pirko <jiri@nvidia.com> Reviewed-by: Jakub Kicinski <kuba@kernel.org> Link: https://lore.kernel.org/r/20230803111340.1074067-4-jiri@resnulli.us Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-08-04ynl-gen-c.py: filter rendering of validate field values for split opsJiri Pirko1-1/+9
For split ops, do and dump has different meaningful values in validate field. Fix the rendering to allow the values per op type as follows: do: strict dump: dump, strict-dump Signed-off-by: Jiri Pirko <jiri@nvidia.com> Reviewed-by: Jakub Kicinski <kuba@kernel.org> Link: https://lore.kernel.org/r/20230803111340.1074067-3-jiri@resnulli.us Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-08-04netlink: specs: add dump-strict flag for dont-validate propertyJiri Pirko3-3/+3
Allow user to specify GENL_DONT_VALIDATE_DUMP_STRICT flag for validation and add this flag to netlink spec schema. Signed-off-by: Jiri Pirko <jiri@nvidia.com> Reviewed-by: Jakub Kicinski <kuba@kernel.org> Link: https://lore.kernel.org/r/20230803111340.1074067-2-jiri@resnulli.us Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-08-04net: lan966x: Do not check 0 for platform_get_irq_byname()Zhu Wang1-2/+2
Since platform_get_irq_byname() never returned zero, so it need not to check whether it returned zero, it returned -EINVAL or -ENXIO when failed, so we replace the return error code with the result it returned. Signed-off-by: Zhu Wang <wangzhu9@huawei.com> Reviewed-by: Simon Horman <horms@kernel.org> Reviewed-by: Horatiu Vultur <horatiu.vultur@microchip.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2023-08-04net: vlan: update wrong commentsEric Dumazet1-3/+3
vlan_insert_tag() and friends do not allocate a new skb. However they might allocate a new skb->head. Update their comments to better describe their behavior. Signed-off-by: Eric Dumazet <edumazet@google.com> Reviewed-by: Simon Horman <horms@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2023-08-04tcp/dccp: cache line align inet_hashinfoEric Dumazet1-1/+1
I have seen tcp_hashinfo starting at a non optimal location, forcing input handlers to pull two cache lines instead of one, and sharing a cache line that was dirtied more than necessary: ffffffff83680600 b tcp_orphan_timer ffffffff83680628 b tcp_orphan_cache ffffffff8368062c b tcp_enable_tx_delay.__tcp_tx_delay_enabled ffffffff83680630 B tcp_hashinfo ffffffff83680680 b tcp_cong_list_lock After this patch, ehash, ehash_locks, ehash_mask and ehash_locks_mask are located in a read-only cache line. Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2023-08-04net: mana: Configure hwc timeout from hardwareSouradeep Chakrabarti4-3/+76
At present hwc timeout value is a fixed value. This patch sets the hwc timeout from the hardware. It now uses a new hardware capability GDMA_DRV_CAP_FLAG_1_HWC_TIMEOUT_RECONFIG to query and set the value in hwc_timeout. Signed-off-by: Souradeep Chakrabarti <schakrabarti@linux.microsoft.com> Reviewed-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2023-08-04net: microchip: vcap api: Use ERR_CAST() in vcap_decode_rule()Li Zetao1-1/+1
There is a warning reported by coccinelle: ./drivers/net/ethernet/microchip/vcap/vcap_api.c:2399:9-16: WARNING: ERR_CAST can be used with ri Use ERR_CAST instead of ERR_PTR + PTR_ERR to simplify the conversion process. Signed-off-by: Li Zetao <lizetao1@huawei.com> Reviewed-by: Simon Horman <horms@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2023-08-04net: Space.h: Remove unused function declarationsYue Haibing1-7/+0
Commit 5aa83a4c0a15 (" [PATCH] remove two obsolete net drivers") remove fmv18x_probe(). And commmit 01f4685797a5 ("eth: amd: remove NI6510 support (ni65)") leave ni65_probe(). Commit a10079c66290 ("staging: remove hp100 driver") remove hp100 driver and hp100_probe() declaration is not used anymore. sonic_probe() and iph5526_probe() are never implemented since the beginning of git history. Signed-off-by: Yue Haibing <yuehaibing@huawei.com> Link: https://lore.kernel.org/r/20230802130716.37308-1-yuehaibing@huawei.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-08-04eth: dpaa: add missing net/xdp.h includeJakub Kicinski1-0/+1
Add missing include for DPAA (fix aarch64 build). Reported-by: kernel test robot <lkp@intel.com> Closes: https://lore.kernel.org/oe-kbuild-all/202308040620.ty8oYNOP-lkp@intel.com/ Fixes: 680ee0456a57 ("net: invert the netdevice.h vs xdp.h dependency") Reviewed-by: Martin KaFai Lau <martin.lau@kernel.org> Link: https://lore.kernel.org/r/20230803230008.362214-1-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-08-03MAINTAINERS: update TUN/TAP maintainersJakub Kicinski1-1/+4
Willem and Jason have agreed to take over the maintainer duties for TUN/TAP, thank you! There's an existing entry for TUN/TAP which only covers the user mode Linux implementation. Since we haven't heard from Maxim on the list for almost a decade, extend that entry and take it over, rather than adding a new one. Acked-by: Willem de Bruijn <willemb@google.com> Acked-by: Jason Wang <jasowang@redhat.com> Link: https://lore.kernel.org/r/20230802182843.4193099-1-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-08-03test/vsock: remove vsock_perf executable on `make clean`Stefano Garzarella1-1/+1
We forgot to add vsock_perf to the rm command in the `clean` target, so now we have a left over after `make clean` in tools/testing/vsock. Fixes: 8abbffd27ced ("test/vsock: vsock_perf utility") Cc: AVKrasnov@sberdevices.ru Signed-off-by: Stefano Garzarella <sgarzare@redhat.com> Reviewed-by: Simon Horman <horms@kernel.org> Tested-by: Simon Horman <horms@kernel.org> # build-tested Link: https://lore.kernel.org/r/20230803085454.30897-1-sgarzare@redhat.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-08-03tcp_metrics: fix data-race in tcpm_suck_dst() vs fastopenEric Dumazet1-4/+5
Whenever tcpm_new() reclaims an old entry, tcpm_suck_dst() would overwrite data that could be read from tcp_fastopen_cache_get() or tcp_metrics_fill_info(). We need to acquire fastopen_seqlock to maintain consistency. For newly allocated objects, tcpm_new() can switch to kzalloc() to avoid an extra fastopen_seqlock acquisition. Fixes: 1fe4c481ba63 ("net-tcp: Fast Open client - cookie cache") Signed-off-by: Eric Dumazet <edumazet@google.com> Cc: Yuchung Cheng <ycheng@google.com> Reviewed-by: Kuniyuki Iwashima <kuniyu@amazon.com> Link: https://lore.kernel.org/r/20230802131500.1478140-7-edumazet@google.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-08-03tcp_metrics: annotate data-races around tm->tcpm_netEric Dumazet1-4/+7
tm->tcpm_net can be read or written locklessly. Instead of changing write_pnet() and read_pnet() and potentially hurt performance, add the needed READ_ONCE()/WRITE_ONCE() in tm_net() and tcpm_new(). Fixes: 849e8a0ca8d5 ("tcp_metrics: Add a field tcpm_net and verify it matches on lookup") Signed-off-by: Eric Dumazet <edumazet@google.com> Reviewed-by: David Ahern <dsahern@kernel.org> Reviewed-by: Kuniyuki Iwashima <kuniyu@amazon.com> Link: https://lore.kernel.org/r/20230802131500.1478140-6-edumazet@google.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-08-03tcp_metrics: annotate data-races around tm->tcpm_vals[]Eric Dumazet1-9/+14
tm->tcpm_vals[] values can be read or written locklessly. Add needed READ_ONCE()/WRITE_ONCE() to document this, and force use of tcp_metric_get() and tcp_metric_set() Fixes: 51c5d0c4b169 ("tcp: Maintain dynamic metrics in local cache.") Signed-off-by: Eric Dumazet <edumazet@google.com> Reviewed-by: David Ahern <dsahern@kernel.org> Reviewed-by: Kuniyuki Iwashima <kuniyu@amazon.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-08-03tcp_metrics: annotate data-races around tm->tcpm_lockEric Dumazet1-2/+4
tm->tcpm_lock can be read or written locklessly. Add needed READ_ONCE()/WRITE_ONCE() to document this. Fixes: 51c5d0c4b169 ("tcp: Maintain dynamic metrics in local cache.") Signed-off-by: Eric Dumazet <edumazet@google.com> Reviewed-by: David Ahern <dsahern@kernel.org> Reviewed-by: Kuniyuki Iwashima <kuniyu@amazon.com> Link: https://lore.kernel.org/r/20230802131500.1478140-4-edumazet@google.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-08-03tcp_metrics: annotate data-races around tm->tcpm_stampEric Dumazet1-6/+13
tm->tcpm_stamp can be read or written locklessly. Add needed READ_ONCE()/WRITE_ONCE() to document this. Also constify tcpm_check_stamp() dst argument. Fixes: 51c5d0c4b169 ("tcp: Maintain dynamic metrics in local cache.") Signed-off-by: Eric Dumazet <edumazet@google.com> Reviewed-by: David Ahern <dsahern@kernel.org> Reviewed-by: Kuniyuki Iwashima <kuniyu@amazon.com> Link: https://lore.kernel.org/r/20230802131500.1478140-3-edumazet@google.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-08-03tcp_metrics: fix addr_same() helperEric Dumazet1-1/+1
Because v4 and v6 families use separate inetpeer trees (respectively net->ipv4.peers and net->ipv6.peers), inetpeer_addr_cmp(a, b) assumes a & b share the same family. tcp_metrics use a common hash table, where entries can have different families. We must therefore make sure to not call inetpeer_addr_cmp() if the families do not match. Fixes: d39d14ffa24c ("net: Add helper function to compare inetpeer addresses") Signed-off-by: Eric Dumazet <edumazet@google.com> Reviewed-by: David Ahern <dsahern@kernel.org> Reviewed-by: Kuniyuki Iwashima <kuniyu@amazon.com> Link: https://lore.kernel.org/r/20230802131500.1478140-2-edumazet@google.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-08-03prestera: fix fallback to previous version on same major versionJonas Gorski1-1/+2
When both supported and previous version have the same major version, and the firmwares are missing, the driver ends in a loop requesting the same (previous) version over and over again: [ 76.327413] Prestera DX 0000:01:00.0: missing latest mrvl/prestera/mvsw_prestera_fw-v4.1.img firmware, fall-back to previous 4.0 version [ 76.339802] Prestera DX 0000:01:00.0: missing latest mrvl/prestera/mvsw_prestera_fw-v4.0.img firmware, fall-back to previous 4.0 version [ 76.352162] Prestera DX 0000:01:00.0: missing latest mrvl/prestera/mvsw_prestera_fw-v4.0.img firmware, fall-back to previous 4.0 version [ 76.364502] Prestera DX 0000:01:00.0: missing latest mrvl/prestera/mvsw_prestera_fw-v4.0.img firmware, fall-back to previous 4.0 version [ 76.376848] Prestera DX 0000:01:00.0: missing latest mrvl/prestera/mvsw_prestera_fw-v4.0.img firmware, fall-back to previous 4.0 version [ 76.389183] Prestera DX 0000:01:00.0: missing latest mrvl/prestera/mvsw_prestera_fw-v4.0.img firmware, fall-back to previous 4.0 version [ 76.401522] Prestera DX 0000:01:00.0: missing latest mrvl/prestera/mvsw_prestera_fw-v4.0.img firmware, fall-back to previous 4.0 version [ 76.413860] Prestera DX 0000:01:00.0: missing latest mrvl/prestera/mvsw_prestera_fw-v4.0.img firmware, fall-back to previous 4.0 version [ 76.426199] Prestera DX 0000:01:00.0: missing latest mrvl/prestera/mvsw_prestera_fw-v4.0.img firmware, fall-back to previous 4.0 version ... Fix this by inverting the check to that we aren't yet at the previous version, and also check the minor version. This also catches the case where both versions are the same, as it was after commit bb5dbf2cc64d ("net: marvell: prestera: add firmware v4.0 support"). With this fix applied: [ 88.499622] Prestera DX 0000:01:00.0: missing latest mrvl/prestera/mvsw_prestera_fw-v4.1.img firmware, fall-back to previous 4.0 version [ 88.511995] Prestera DX 0000:01:00.0: failed to request previous firmware: mrvl/prestera/mvsw_prestera_fw-v4.0.img [ 88.522403] Prestera DX: probe of 0000:01:00.0 failed with error -2 Fixes: 47f26018a414 ("net: marvell: prestera: try to load previous fw version") Signed-off-by: Jonas Gorski <jonas.gorski@bisdn.de> Acked-by: Elad Nachman <enachman@marvell.com> Reviewed-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Acked-by: Taras Chornyi <taras.chornyi@plvision.eu> Link: https://lore.kernel.org/r/20230802092357.163944-1-jonas.gorski@bisdn.de Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-08-03docs: net: page_pool: use kdoc to avoid duplicating the informationJakub Kicinski3-102/+155
All struct members of the driver-facing APIs are documented twice, in the code and under Documentation. This is a bit tedious. I also get the feeling that a lot of developers will read the header when coding, rather than the doc. Bring the two a little closer together by using kdoc for structs and functions. Using kdoc also gives us links (mentioning a function or struct in the text gets replaced by a link to its doc). Reviewed-by: Randy Dunlap <rdunlap@infradead.org> Tested-by: Randy Dunlap <rdunlap@infradead.org> Acked-by: Jesper Dangaard Brouer <hawk@kernel.org> Link: https://lore.kernel.org/r/20230802161821.3621985-3-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-08-03docs: net: page_pool: document PP_FLAG_DMA_SYNC_DEV parametersJakub Kicinski1-0/+34
Using PP_FLAG_DMA_SYNC_DEV is a bit confusing. It was perhaps more obvious when it was introduced but the page pool use has grown beyond XDP and beyond packet-per-page so now making the heads and tails out of this feature is not trivial. Obviously making the API more user friendly would be a better fix, but until someone steps up to do that let's at least document what the parameters are. Relevant discussion in the first Link. Link: https://lore.kernel.org/all/20230731114427.0da1f73b@kernel.org/ Reviewed-by: Randy Dunlap <rdunlap@infradead.org> Reviewed-by: Michael Chan <michael.chan@broadcom.com> Acked-by: Jesper Dangaard Brouer <hawk@kernel.org> Reviewed-by: Somnath Kotur <somnath.kotur@broadcom.com> Link: https://lore.kernel.org/r/20230802161821.3621985-2-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-08-03net: invert the netdevice.h vs xdp.h dependencyJakub Kicinski9-28/+35
xdp.h is far more specific and is included in only 67 other files vs netdevice.h's 1538 include sites. Make xdp.h include netdevice.h, instead of the other way around. This decreases the incremental allmodconfig builds size when xdp.h is touched from 5947 to 662 objects. Move bpf_prog_run_xdp() to xdp.h, seems appropriate and filter.h is a mega-header in its own right so it's nice to avoid xdp.h getting included there as well. The only unfortunate part is that the typedef for xdp_features_t has to move to netdevice.h, since its embedded in struct netdevice. Signed-off-by: Jakub Kicinski <kuba@kernel.org> Acked-by: Jesper Dangaard Brouer <hawk@kernel.org> Link: https://lore.kernel.org/r/20230803010230.1755386-4-kuba@kernel.org Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
2023-08-03net: move struct netdev_rx_queue out of netdevice.hJakub Kicinski7-44/+58
struct netdev_rx_queue is touched in only a few places and having it defined in netdevice.h brings in the dependency on xdp.h, because struct xdp_rxq_info gets embedded in struct netdev_rx_queue. In prep for removal of xdp.h from netdevice.h move all the netdev_rx_queue stuff to a new header. We could technically break the new header up to avoid the sysfs.h include but it's so rarely included it doesn't seem to be worth it at this point. Reviewed-by: Amritha Nambiar <amritha.nambiar@intel.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org> Acked-by: Jesper Dangaard Brouer <hawk@kernel.org> Link: https://lore.kernel.org/r/20230803010230.1755386-3-kuba@kernel.org Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
2023-08-03eth: add missing xdp.h includes in driversJakub Kicinski16-0/+17
Handful of drivers currently expect to get xdp.h by virtue of including netdevice.h. This will soon no longer be the case so add explicit includes. Reviewed-by: Wei Fang <wei.fang@nxp.com> Reviewed-by: Gerhard Engleder <gerhard@engleder-embedded.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org> Acked-by: Jesper Dangaard Brouer <hawk@kernel.org> Link: https://lore.kernel.org/r/20230803010230.1755386-2-kuba@kernel.org Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
2023-08-03net/mlx4: Remove many unnecessary NULL valuesRuan Jinjie3-11/+11
The NULL initialization of the pointers assigned by kzalloc() first is not necessary, because if the kzalloc() failed, the pointers will be assigned NULL, otherwise it works as usual. so remove it. Signed-off-by: Ruan Jinjie <ruanjinjie@huawei.com> Reviewed-by: Leon Romanovsky <leonro@nvidia.com> Link: https://lore.kernel.org/r/20230802040026.2588675-1-ruanjinjie@huawei.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2023-08-03selftests: openvswitch: add ct-nat test case with ipv4Aaron Conole2-0/+126
Building on the previous work, add a very simplistic NAT case using ipv4. This just tests dnat transformation Signed-off-by: Aaron Conole <aconole@redhat.com> Reviewed-by: Simon Horman <horms@kernel.org> Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2023-08-03selftests: openvswitch: add basic ct test case parsingAaron Conole2-0/+107
Forwarding via ct() action is an important use case for openvswitch, but generally would require using a full ovs-vswitchd to get working. Add a ct action parser for basic ct test case. Signed-off-by: Aaron Conole <aconole@redhat.com> Reviewed-by: Adrian Moreno <amorenoz@redhat.com> Reviewed-by: Simon Horman <horms@kernel.org> Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2023-08-03selftests: openvswitch: add a test for ipv4 forwardingAaron Conole1-0/+40
This is a simple ipv4 bidirectional connectivity test. Signed-off-by: Aaron Conole <aconole@redhat.com> Reviewed-by: Adrian Moreno <amorenoz@redhat.com> Reviewed-by: Simon Horman <horms@kernel.org> Signed-off-by: Paolo Abeni <pabeni@redhat.com>