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2024-08-23netlink: specs: add phy-index as a header parameterMaxime Chevallier
Update the spec to take the newly introduced phy-index as a generic request parameter. Signed-off-by: Maxime Chevallier <maxime.chevallier@bootlin.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Reviewed-by: Christophe Leroy <christophe.leroy@csgroup.eu> Tested-by: Christophe Leroy <christophe.leroy@csgroup.eu> Signed-off-by: David S. Miller <davem@davemloft.net>
2024-08-23net: ethtool: Allow passing a phy index for some commandsMaxime Chevallier
Some netlink commands are target towards ethernet PHYs, to control some of their features. As there's several such commands, add the ability to pass a PHY index in the ethnl request, which will populate the generic ethnl_req_info with the passed phy_index. Add a helper that netlink command handlers need to use to grab the targeted PHY from the req_info. This helper needs to hold rtnl_lock() while interacting with the PHY, as it may be removed at any point. Signed-off-by: Maxime Chevallier <maxime.chevallier@bootlin.com> Reviewed-by: Christophe Leroy <christophe.leroy@csgroup.eu> Tested-by: Christophe Leroy <christophe.leroy@csgroup.eu> Signed-off-by: David S. Miller <davem@davemloft.net>
2024-08-23net: sfp: Add helper to return the SFP bus nameMaxime Chevallier
Knowing the bus name is helpful when we want to expose the link topology to userspace, add a helper to return the SFP bus name. This call will always be made while holding the RTNL which ensures that the SFP driver won't unbind from the device. The returned pointer to the bus name will only be used while RTNL is held. Signed-off-by: Maxime Chevallier <maxime.chevallier@bootlin.com> Suggested-by: "Russell King (Oracle)" <linux@armlinux.org.uk> Reviewed-by: Christophe Leroy <christophe.leroy@csgroup.eu> Tested-by: Christophe Leroy <christophe.leroy@csgroup.eu> Signed-off-by: David S. Miller <davem@davemloft.net>
2024-08-23net: phy: add helpers to handle sfp phy connect/disconnectMaxime Chevallier
There are a few PHY drivers that can handle SFP modules through their sfp_upstream_ops. Introduce Phylib helpers to keep track of connected SFP PHYs in a netdevice's namespace, by adding the SFP PHY to the upstream PHY's netdev's namespace. By doing so, these SFP PHYs can be enumerated and exposed to users, which will be able to use their capabilities. Signed-off-by: Maxime Chevallier <maxime.chevallier@bootlin.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Reviewed-by: Christophe Leroy <christophe.leroy@csgroup.eu> Tested-by: Christophe Leroy <christophe.leroy@csgroup.eu> Signed-off-by: David S. Miller <davem@davemloft.net>
2024-08-23net: sfp: pass the phy_device when disconnecting an sfp module's PHYMaxime Chevallier
Pass the phy_device as a parameter to the sfp upstream .disconnect_phy operation. This is preparatory work to help track phy devices across a net_device's link. Signed-off-by: Maxime Chevallier <maxime.chevallier@bootlin.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Reviewed-by: Christophe Leroy <christophe.leroy@csgroup.eu> Tested-by: Christophe Leroy <christophe.leroy@csgroup.eu> Signed-off-by: David S. Miller <davem@davemloft.net>
2024-08-23net: phy: Introduce ethernet link topology representationMaxime Chevallier
Link topologies containing multiple network PHYs attached to the same net_device can be found when using a PHY as a media converter for use with an SFP connector, on which an SFP transceiver containing a PHY can be used. With the current model, the transceiver's PHY can't be used for operations such as cable testing, timestamping, macsec offload, etc. The reason being that most of the logic for these configuration, coming from either ethtool netlink or ioctls tend to use netdev->phydev, which in multi-phy systems will reference the PHY closest to the MAC. Introduce a numbering scheme allowing to enumerate PHY devices that belong to any netdev, which can in turn allow userspace to take more precise decisions with regard to each PHY's configuration. The numbering is maintained per-netdev, in a phy_device_list. The numbering works similarly to a netdevice's ifindex, with identifiers that are only recycled once INT_MAX has been reached. This prevents races that could occur between PHY listing and SFP transceiver removal/insertion. The identifiers are assigned at phy_attach time, as the numbering depends on the netdevice the phy is attached to. The PHY index can be re-used for PHYs that are persistent. Signed-off-by: Maxime Chevallier <maxime.chevallier@bootlin.com> Reviewed-by: Christophe Leroy <christophe.leroy@csgroup.eu> Tested-by: Christophe Leroy <christophe.leroy@csgroup.eu> Signed-off-by: David S. Miller <davem@davemloft.net>
2024-08-22Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netJakub Kicinski
Cross-merge networking fixes after downstream PR. No conflicts. Adjacent changes: drivers/net/ethernet/broadcom/bnxt/bnxt.h c948c0973df5 ("bnxt_en: Don't clear ntuple filters and rss contexts during ethtool ops") f2878cdeb754 ("bnxt_en: Add support to call FW to update a VNIC") Link: https://patch.msgid.link/20240822210125.1542769-1-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-08-22Merge branch 'unmask-upper-dscp-bits-part-1'Jakub Kicinski
Ido Schimmel says: ==================== Unmask upper DSCP bits - part 1 tl;dr - This patchset starts to unmask the upper DSCP bits in the IPv4 flow key in preparation for allowing IPv4 FIB rules to match on DSCP. No functional changes are expected. The TOS field in the IPv4 flow key ('flowi4_tos') is used during FIB lookup to match against the TOS selector in FIB rules and routes. It is currently impossible for user space to configure FIB rules that match on the DSCP value as the upper DSCP bits are either masked in the various call sites that initialize the IPv4 flow key or along the path to the FIB core. In preparation for adding a DSCP selector to IPv4 and IPv6 FIB rules, we need to make sure the entire DSCP value is present in the IPv4 flow key. This patchset starts to unmask the upper DSCP bits in the various places that invoke the core FIB lookup functions directly (patches #1-#7) and in the input route path (patches #8-#12). Future patchsets will do the same in the output route path. No functional changes are expected as commit 1fa3314c14c6 ("ipv4: Centralize TOS matching") moved the masking of the upper DSCP bits to the core where 'flowi4_tos' is matched against the TOS selector. ==================== Link: https://patch.msgid.link/20240821125251.1571445-1-idosch@nvidia.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-08-22ipv4: Unmask upper DSCP bits when using hintsIdo Schimmel
Unmask the upper DSCP bits when performing source validation and routing a packet using the same route from a previously processed packet (hint). In the future, this will allow us to perform the FIB lookup that is performed as part of source validation according to the full DSCP value. No functional changes intended since the upper DSCP bits are masked when comparing against the TOS selectors in FIB rules and routes. Signed-off-by: Ido Schimmel <idosch@nvidia.com> Reviewed-by: Guillaume Nault <gnault@redhat.com> Acked-by: Florian Westphal <fw@strlen.de> Reviewed-by: David Ahern <dsahern@kernel.org> Link: https://patch.msgid.link/20240821125251.1571445-13-idosch@nvidia.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-08-22ipv4: udp: Unmask upper DSCP bits during early demuxIdo Schimmel
Unmask the upper DSCP bits when performing source validation for multicast packets during early demux. In the future, this will allow us to perform the FIB lookup which is performed as part of source validation according to the full DSCP value. No functional changes intended since the upper DSCP bits are masked when comparing against the TOS selectors in FIB rules and routes. Signed-off-by: Ido Schimmel <idosch@nvidia.com> Reviewed-by: Guillaume Nault <gnault@redhat.com> Acked-by: Florian Westphal <fw@strlen.de> Reviewed-by: David Ahern <dsahern@kernel.org> Link: https://patch.msgid.link/20240821125251.1571445-12-idosch@nvidia.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-08-22ipv4: icmp: Pass full DS field to ip_route_input()Ido Schimmel
Align the ICMP code to other callers of ip_route_input() and pass the full DS field. In the future this will allow us to perform a route lookup according to the full DSCP value. No functional changes intended since the upper DSCP bits are masked when comparing against the TOS selectors in FIB rules and routes. Signed-off-by: Ido Schimmel <idosch@nvidia.com> Reviewed-by: Guillaume Nault <gnault@redhat.com> Acked-by: Florian Westphal <fw@strlen.de> Reviewed-by: David Ahern <dsahern@kernel.org> Link: https://patch.msgid.link/20240821125251.1571445-11-idosch@nvidia.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-08-22ipv4: Unmask upper DSCP bits in RTM_GETROUTE input route lookupIdo Schimmel
Unmask the upper DSCP bits when looking up an input route via the RTM_GETROUTE netlink message so that in the future the lookup could be performed according to the full DSCP value. No functional changes intended since the upper DSCP bits are masked when comparing against the TOS selectors in FIB rules and routes. Signed-off-by: Ido Schimmel <idosch@nvidia.com> Reviewed-by: Guillaume Nault <gnault@redhat.com> Acked-by: Florian Westphal <fw@strlen.de> Reviewed-by: David Ahern <dsahern@kernel.org> Link: https://patch.msgid.link/20240821125251.1571445-10-idosch@nvidia.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-08-22ipv4: Unmask upper DSCP bits in input route lookupIdo Schimmel
Unmask the upper DSCP bits in input route lookup so that in the future the lookup could be performed according to the full DSCP value. No functional changes intended since the upper DSCP bits are masked when comparing against the TOS selectors in FIB rules and routes. Signed-off-by: Ido Schimmel <idosch@nvidia.com> Reviewed-by: Guillaume Nault <gnault@redhat.com> Acked-by: Florian Westphal <fw@strlen.de> Reviewed-by: David Ahern <dsahern@kernel.org> Link: https://patch.msgid.link/20240821125251.1571445-9-idosch@nvidia.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-08-22ipv4: Unmask upper DSCP bits in fib_compute_spec_dst()Ido Schimmel
As explained in commit 35ebf65e851c ("ipv4: Create and use fib_compute_spec_dst() helper."), the function is used - for example - to determine the source address for an ICMP reply. If we are responding to a multicast or broadcast packet, the source address is set to the source address that we would use if we were to send a packet to the unicast source of the original packet. This address is determined by performing a FIB lookup and using the preferred source address of the resulting route. Unmask the upper DSCP bits of the DS field of the packet that triggered the reply so that in the future the FIB lookup could be performed according to the full DSCP value. No functional changes intended since the upper DSCP bits are masked when comparing against the TOS selectors in FIB rules and routes. Signed-off-by: Ido Schimmel <idosch@nvidia.com> Reviewed-by: Guillaume Nault <gnault@redhat.com> Acked-by: Florian Westphal <fw@strlen.de> Reviewed-by: David Ahern <dsahern@kernel.org> Link: https://patch.msgid.link/20240821125251.1571445-8-idosch@nvidia.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-08-22ipv4: ipmr: Unmask upper DSCP bits in ipmr_rt_fib_lookup()Ido Schimmel
Unmask the upper DSCP bits when calling ipmr_fib_lookup() so that in the future it could perform the FIB lookup according to the full DSCP value. Note that ipmr_fib_lookup() performs a FIB rule lookup (returning the relevant routing table) and that IPv4 multicast FIB rules do not support matching on TOS / DSCP. However, it is still worth unmasking the upper DSCP bits in case support for DSCP matching is ever added. Signed-off-by: Ido Schimmel <idosch@nvidia.com> Reviewed-by: Guillaume Nault <gnault@redhat.com> Acked-by: Florian Westphal <fw@strlen.de> Reviewed-by: David Ahern <dsahern@kernel.org> Link: https://patch.msgid.link/20240821125251.1571445-7-idosch@nvidia.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-08-22netfilter: nft_fib: Unmask upper DSCP bitsIdo Schimmel
In a similar fashion to the iptables rpfilter match, unmask the upper DSCP bits of the DS field of the currently tested packet so that in the future the FIB lookup could be performed according to the full DSCP value. No functional changes intended since the upper DSCP bits are masked when comparing against the TOS selectors in FIB rules and routes. Signed-off-by: Ido Schimmel <idosch@nvidia.com> Reviewed-by: Guillaume Nault <gnault@redhat.com> Acked-by: Florian Westphal <fw@strlen.de> Reviewed-by: David Ahern <dsahern@kernel.org> Link: https://patch.msgid.link/20240821125251.1571445-6-idosch@nvidia.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-08-22netfilter: rpfilter: Unmask upper DSCP bitsIdo Schimmel
The rpfilter match performs a reverse path filter test on a packet by performing a FIB lookup with the source and destination addresses swapped. Unmask the upper DSCP bits of the DS field of the tested packet so that in the future the FIB lookup could be performed according to the full DSCP value. No functional changes intended since the upper DSCP bits are masked when comparing against the TOS selectors in FIB rules and routes. Signed-off-by: Ido Schimmel <idosch@nvidia.com> Reviewed-by: Guillaume Nault <gnault@redhat.com> Acked-by: Florian Westphal <fw@strlen.de> Reviewed-by: David Ahern <dsahern@kernel.org> Link: https://patch.msgid.link/20240821125251.1571445-5-idosch@nvidia.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-08-22ipv4: Unmask upper DSCP bits when constructing the Record Route optionIdo Schimmel
The Record Route IP option records the addresses of the routers that routed the packet. In the case of forwarded packets, the kernel performs a route lookup via fib_lookup() and fills in the preferred source address of the matched route. Unmask the upper DSCP bits when performing the lookup so that in the future the lookup could be performed according to the full DSCP value. No functional changes intended since the upper DSCP bits are masked when comparing against the TOS selectors in FIB rules and routes. Signed-off-by: Ido Schimmel <idosch@nvidia.com> Reviewed-by: Guillaume Nault <gnault@redhat.com> Acked-by: Florian Westphal <fw@strlen.de> Reviewed-by: David Ahern <dsahern@kernel.org> Link: https://patch.msgid.link/20240821125251.1571445-4-idosch@nvidia.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-08-22ipv4: Unmask upper DSCP bits in NETLINK_FIB_LOOKUP familyIdo Schimmel
The NETLINK_FIB_LOOKUP netlink family can be used to perform a FIB lookup according to user provided parameters and communicate the result back to user space. Unmask the upper DSCP bits of the user-provided DS field before invoking the IPv4 FIB lookup API so that in the future the lookup could be performed according to the full DSCP value. No functional changes intended since the upper DSCP bits are masked when comparing against the TOS selectors in FIB rules and routes. Signed-off-by: Ido Schimmel <idosch@nvidia.com> Reviewed-by: Guillaume Nault <gnault@redhat.com> Acked-by: Florian Westphal <fw@strlen.de> Reviewed-by: David Ahern <dsahern@kernel.org> Link: https://patch.msgid.link/20240821125251.1571445-3-idosch@nvidia.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-08-22bpf: Unmask upper DSCP bits in bpf_fib_lookup() helperIdo Schimmel
The helper performs a FIB lookup according to the parameters in the 'params' argument, one of which is 'tos'. According to the test in test_tc_neigh_fib.c, it seems that BPF programs are expected to initialize the 'tos' field to the full 8 bit DS field from the IPv4 header. Unmask the upper DSCP bits before invoking the IPv4 FIB lookup APIs so that in the future the lookup could be performed according to the full DSCP value. No functional changes intended since the upper DSCP bits are masked when comparing against the TOS selectors in FIB rules and routes. Signed-off-by: Ido Schimmel <idosch@nvidia.com> Reviewed-by: Guillaume Nault <gnault@redhat.com> Acked-by: Florian Westphal <fw@strlen.de> Reviewed-by: David Ahern <dsahern@kernel.org> Link: https://patch.msgid.link/20240821125251.1571445-2-idosch@nvidia.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-08-22Merge branch 'enhance-network-interface-feature-testing'Jakub Kicinski
Abhinav Jain says: ==================== Enhance network interface feature testing This small series includes fixes for creation of veth pairs for networkless kernels & adds tests for turning the different network interface features on and off in selftests/net/netdevice.sh script. Tested using vng and compiles for network as well as networkless kernel. # selftests: net: netdevice.sh # No valid network device found, creating veth pair # PASS: veth0: set interface up # PASS: veth0: set MAC address # XFAIL: veth0: set IP address unsupported for veth* # PASS: veth0: ethtool list features # PASS: veth0: Turned off feature: rx-checksumming # PASS: veth0: Turned on feature: rx-checksumming # PASS: veth0: Restore feature rx-checksumming to initial state on # Actual changes: # tx-checksum-ip-generic: off ... # PASS: veth0: Turned on feature: rx-udp-gro-forwarding # PASS: veth0: Restore feature rx-udp-gro-forwarding to initial state off # Cannot get register dump: Operation not supported # XFAIL: veth0: ethtool dump not supported # PASS: veth0: ethtool stats # PASS: veth0: stop interface ==================== Link: https://patch.msgid.link/20240821171903.118324-1-jain.abhinav177@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-08-22selftests: net: Use XFAIL for operations not supported by the driverAbhinav Jain
Check if veth pair was created and if yes, xfail on setting IP address logging an informational message. Use XFAIL instead of SKIP for unsupported ethtool APIs. Signed-off-by: Abhinav Jain <jain.abhinav177@gmail.com> Reviewed-by: Simon Horman <horms@kernel.org> Link: https://patch.msgid.link/20240821171903.118324-4-jain.abhinav177@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-08-22selftests: net: Add on/off checks for non-fixed features of interfaceAbhinav Jain
Implement on/off testing for all non-fixed features via while loop. Signed-off-by: Abhinav Jain <jain.abhinav177@gmail.com> Reviewed-by: Simon Horman <horms@kernel.org> Link: https://patch.msgid.link/20240821171903.118324-3-jain.abhinav177@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-08-22selftests: net: Create veth pair for testing in networkless kernelAbhinav Jain
Check if the netdev list is empty and create veth pair to be used for feature on/off testing. Remove the veth pair after testing is complete. Signed-off-by: Abhinav Jain <jain.abhinav177@gmail.com> Reviewed-by: Simon Horman <horms@kernel.org> Link: https://patch.msgid.link/20240821171903.118324-2-jain.abhinav177@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-08-22net: atlantic: Avoid warning about potential string truncationSimon Horman
W=1 builds with GCC 14.2.0 warn that: .../aq_ethtool.c:278:59: warning: ‘%d’ directive output may be truncated writing between 1 and 11 bytes into a region of size 6 [-Wformat-truncation=] 278 | snprintf(tc_string, 8, "TC%d ", tc); | ^~ .../aq_ethtool.c:278:56: note: directive argument in the range [-2147483641, 254] 278 | snprintf(tc_string, 8, "TC%d ", tc); | ^~~~~~~ .../aq_ethtool.c:278:33: note: ‘snprintf’ output between 5 and 15 bytes into a destination of size 8 278 | snprintf(tc_string, 8, "TC%d ", tc); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ tc is always in the range 0 - cfg->tcs. And as cfg->tcs is a u8, the range is 0 - 255. Further, on inspecting the code, it seems that cfg->tcs will never be more than AQ_CFG_TCS_MAX (8), so the range is actually 0 - 8. So, it seems that the condition that GCC flags will not occur. But, nonetheless, it would be nice if it didn't emit the warning. It seems that this can be achieved by changing the format specifier from %d to %u, in which case I believe GCC recognises an upper bound on the range of tc of 0 - 255. After some experimentation I think this is due to the combination of the use of %u and the type of cfg->tcs (u8). Empirically, updating the type of the tc variable to unsigned int has the same effect. As both of these changes seem to make sense in relation to what the code is actually doing - iterating over unsigned values - do both. Compile tested only. Signed-off-by: Simon Horman <horms@kernel.org> Link: https://patch.msgid.link/20240821-atlantic-str-v1-1-fa2cfe38ca00@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-08-23Merge tag 'net-6.11-rc5' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net Pull networking fixes from Jakub Kicinski: "Including fixes from bluetooth and netfilter. Current release - regressions: - virtio_net: avoid crash on resume - move netdev_tx_reset_queue() call before RX napi enable Current release - new code bugs: - net/mlx5e: fix page leak and incorrect header release w/ HW GRO Previous releases - regressions: - udp: fix receiving fraglist GSO packets - tcp: prevent refcount underflow due to concurrent execution of tcp_sk_exit_batch() Previous releases - always broken: - ipv6: fix possible UAF when incrementing error counters on output - ip6: tunnel: prevent merging of packets with different L2 - mptcp: pm: fix IDs not being reusable - bonding: fix potential crashes in IPsec offload handling - Bluetooth: HCI: - MGMT: add error handling to pair_device() to avoid a crash - invert LE State quirk to be opt-out rather then opt-in - fix LE quote calculation - drv: dsa: VLAN fixes for Ocelot driver - drv: igb: cope with large MAX_SKB_FRAGS Kconfig settings - drv: ice: fi Rx data path on architectures with PAGE_SIZE >= 8192 Misc: - netpoll: do not export netpoll_poll_[disable|enable]() - MAINTAINERS: update the list of networking headers" * tag 'net-6.11-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (82 commits) s390/iucv: Fix vargs handling in iucv_alloc_device() net: ovs: fix ovs_drop_reasons error net: xilinx: axienet: Fix dangling multicast addresses net: xilinx: axienet: Always disable promiscuous mode MAINTAINERS: Mark JME Network Driver as Odd Fixes MAINTAINERS: Add header files to NETWORKING sections MAINTAINERS: Add limited globs for Networking headers MAINTAINERS: Add net_tstamp.h to SOCKET TIMESTAMPING section MAINTAINERS: Add sonet.h to ATM section of MAINTAINERS octeontx2-af: Fix CPT AF register offset calculation net: phy: realtek: Fix setting of PHY LEDs Mode B bit on RTL8211F net: ngbe: Fix phy mode set to external phy netfilter: flowtable: validate vlan header bnxt_en: Fix double DMA unmapping for XDP_REDIRECT ipv6: prevent possible UAF in ip6_xmit() ipv6: fix possible UAF in ip6_finish_output2() ipv6: prevent UAF in ip6_send_skb() netpoll: do not export netpoll_poll_[disable|enable]() selftests: mlxsw: ethtool_lanes: Source ethtool lib from correct path udp: fix receiving fraglist GSO packets ...
2024-08-23Merge tag 'kbuild-fixes-v6.11-2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild Pull Kbuild fixes from Masahiro Yamada: - Eliminate the fdtoverlay command duplication in scripts/Makefile.lib - Fix 'make compile_commands.json' for external modules - Ensure scripts/kconfig/merge_config.sh handles missing newlines - Fix some build errors on macOS * tag 'kbuild-fixes-v6.11-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: kbuild: fix typos "prequisites" to "prerequisites" Documentation/llvm: turn make command for ccache into code block kbuild: avoid scripts/kallsyms parsing /dev/null treewide: remove unnecessary <linux/version.h> inclusion scripts: kconfig: merge_config: config files: add a trailing newline Makefile: add $(srctree) to dependency of compile_commands.json target kbuild: clean up code duplication in cmd_fdtoverlay
2024-08-22s390/iucv: Fix vargs handling in iucv_alloc_device()Alexandra Winter
iucv_alloc_device() gets a format string and a varying number of arguments. This is incorrectly forwarded by calling dev_set_name() with the format string and a va_list, while dev_set_name() expects also a varying number of arguments. Symptoms: Corrupted iucv device names, which can result in log messages like: sysfs: cannot create duplicate filename '/devices/iucv/hvc_iucv1827699952' Fixes: 4452e8ef8c36 ("s390/iucv: Provide iucv_alloc_device() / iucv_release_device()") Link: https://bugzilla.suse.com/show_bug.cgi?id=1228425 Signed-off-by: Alexandra Winter <wintera@linux.ibm.com> Reviewed-by: Thorsten Winkler <twinkler@linux.ibm.com> Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com> Link: https://patch.msgid.link/20240821091337.3627068-1-wintera@linux.ibm.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-08-22net: ovs: fix ovs_drop_reasons errorMenglong Dong
There is something wrong with ovs_drop_reasons. ovs_drop_reasons[0] is "OVS_DROP_LAST_ACTION", but OVS_DROP_LAST_ACTION == __OVS_DROP_REASON + 1, which means that ovs_drop_reasons[1] should be "OVS_DROP_LAST_ACTION". And as Adrian tested, without the patch, adding flow to drop packets results in: drop at: do_execute_actions+0x197/0xb20 [openvsw (0xffffffffc0db6f97) origin: software input port ifindex: 8 timestamp: Tue Aug 20 10:19:17 2024 859853461 nsec protocol: 0x800 length: 98 original length: 98 drop reason: OVS_DROP_ACTION_ERROR With the patch, the same results in: drop at: do_execute_actions+0x197/0xb20 [openvsw (0xffffffffc0db6f97) origin: software input port ifindex: 8 timestamp: Tue Aug 20 10:16:13 2024 475856608 nsec protocol: 0x800 length: 98 original length: 98 drop reason: OVS_DROP_LAST_ACTION Fix this by initializing ovs_drop_reasons with index. Fixes: 9d802da40b7c ("net: openvswitch: add last-action drop reason") Signed-off-by: Menglong Dong <dongml2@chinatelecom.cn> Tested-by: Adrian Moreno <amorenoz@redhat.com> Reviewed-by: Adrian Moreno <amorenoz@redhat.com> Link: https://patch.msgid.link/20240821123252.186305-1-dongml2@chinatelecom.cn Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-08-22Merge tag 'nf-24-08-22' of ↵Jakub Kicinski
git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf Pablo Neira Ayuso says: ==================== Netfilter fixes for net The following patchset contains Netfilter fixes for net: Patch #1 disable BH when collecting stats via hardware offload to ensure concurrent updates from packet path do not result in losing stats. From Sebastian Andrzej Siewior. Patch #2 uses write seqcount to reset counters serialize against reader. Also from Sebastian Andrzej Siewior. Patch #3 ensures vlan header is in place before accessing its fields, according to KMSAN splat triggered by syzbot. * tag 'nf-24-08-22' of git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf: netfilter: flowtable: validate vlan header netfilter: nft_counter: Synchronize nft_counter_reset() against reader. netfilter: nft_counter: Disable BH in nft_counter_offload_stats(). ==================== Link: https://patch.msgid.link/20240822101842.4234-1-pablo@netfilter.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-08-22Merge branch 'net-xilinx-axienet-multicast-fixes-and-improvements'Jakub Kicinski
Sean Anderson says: ==================== net: xilinx: axienet: Multicast fixes and improvements [part] ==================== First two patches of the series which are fixes. Link: https://patch.msgid.link/20240822154059.1066595-1-sean.anderson@linux.dev Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-08-22net: xilinx: axienet: Fix dangling multicast addressesSean Anderson
If a multicast address is removed but there are still some multicast addresses, that address would remain programmed into the frame filter. Fix this by explicitly setting the enable bit for each filter. Fixes: 8a3b7a252dca ("drivers/net/ethernet/xilinx: added Xilinx AXI Ethernet driver") Signed-off-by: Sean Anderson <sean.anderson@linux.dev> Reviewed-by: Simon Horman <horms@kernel.org> Link: https://patch.msgid.link/20240822154059.1066595-3-sean.anderson@linux.dev Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-08-22net: xilinx: axienet: Always disable promiscuous modeSean Anderson
If promiscuous mode is disabled when there are fewer than four multicast addresses, then it will not be reflected in the hardware. Fix this by always clearing the promiscuous mode flag even when we program multicast addresses. Fixes: 8a3b7a252dca ("drivers/net/ethernet/xilinx: added Xilinx AXI Ethernet driver") Signed-off-by: Sean Anderson <sean.anderson@linux.dev> Reviewed-by: Simon Horman <horms@kernel.org> Link: https://patch.msgid.link/20240822154059.1066595-2-sean.anderson@linux.dev Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-08-23kbuild: fix typos "prequisites" to "prerequisites"Masahiro Yamada
This typo in scripts/Makefile.build has been present for more than 20 years. It was accidentally copy-pasted to other scripts/Makefile.* files. Fix them all. Signed-off-by: Masahiro Yamada <masahiroy@kernel.org> Reviewed-by: Nathan Chancellor <nathan@kernel.org>
2024-08-22Merge branch 'maintainers-networking-updates'Paolo Abeni
Simon Horman says: ==================== MAINTAINERS: Networking updates This series includes Networking-related updates to MAINTAINERS. * Patches 1-4 aim to assign header files with "*net*' and '*skbuff*' in their name to Networking-related sections within Maintainers. There are a few such files left over after this patches. I have to sent separate patches to add them to SCSI SUBSYSTEM and NETWORKING DRIVERS (WIRELESS) sections [1][2]. [1] https://lore.kernel.org/linux-scsi/20240816-scsi-mnt-v1-1-439af8b1c28b@kernel.org/ [2] https://lore.kernel.org/linux-wireless/20240816-wifi-mnt-v1-1-3fb3bf5d44aa@kernel.org/ * Patch 5 updates the status of the JME driver to 'Odd Fixes' ==================== Link: https://patch.msgid.link/20240821-net-mnt-v2-0-59a5af38e69d@kernel.org Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2024-08-22MAINTAINERS: Mark JME Network Driver as Odd FixesSimon Horman
This driver only appears to have received sporadic clean-ups, typically part of some tree-wide activity, and fixes for quite some time. And according to the maintainer, Guo-Fu Tseng, the device has been EOLed for a long time (see Link). Accordingly, it seems appropriate to mark this driver as odd fixes. Cc: Moon Yeounsu <yyyynoom@gmail.com> Cc: Guo-Fu Tseng <cooldavid@cooldavid.org> Link: https://lore.kernel.org/netdev/20240805003139.M94125@cooldavid.org/ Signed-off-by: Simon Horman <horms@kernel.org> Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2024-08-22MAINTAINERS: Add header files to NETWORKING sectionsSimon Horman
This is part of an effort to assign a section in MAINTAINERS to header files that relate to Networking. In this case the files with "net" or "skbuff" in their name. This patch adds a number of such files to the NETWORKING DRIVERS and NETWORKING [GENERAL] sections. Signed-off-by: Simon Horman <horms@kernel.org> Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2024-08-22MAINTAINERS: Add limited globs for Networking headersSimon Horman
This aims to add limited globs to improve the coverage of header files in the NETWORKING DRIVERS and NETWORKING [GENERAL] sections. It is done so in a minimal way to exclude overlap with other sections. And so as not to require "X" entries to exclude files otherwise matched by these new globs. While imperfect, due to it's limited nature, this does extend coverage of header files by these sections. And aims to automatically cover new files that seem very likely belong to these sections. The include/linux/netdev* glob (both sections) + Subsumes the entries for: - include/linux/netdevice.h + Extends the sections to cover - include/linux/netdevice_xmit.h - include/linux/netdev_features.h The include/uapi/linux/netdev* globs: (both sections) + Subsumes the entries for: - include/linux/netdevice.h + Extends the sections to cover - include/linux/netdev.h The include/linux/skbuff* glob (NETWORKING [GENERAL] section only): + Subsumes the entry for: - include/linux/skbuff.h + Extends the section to cover - include/linux/skbuff_ref.h A include/uapi/linux/net_* glob was not added to the NETWORKING [GENERAL] section. Although it would subsume the entry for include/uapi/linux/net_namespace.h, which is fine, it would also extend coverage to: - include/uapi/linux/net_dropmon.h, which belongs to the NETWORK DROP MONITOR section - include/uapi/linux/net_tstamp.h which, as per an earlier patch in this series, belongs to the SOCKET TIMESTAMPING section Signed-off-by: Simon Horman <horms@kernel.org> Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2024-08-22MAINTAINERS: Add net_tstamp.h to SOCKET TIMESTAMPING sectionSimon Horman
This is part of an effort to assign a section in MAINTAINERS to header files that relate to Networking. In this case the files with "net" in their name. Cc: Richard Cochran <richardcochran@gmail.com> Cc: Willem de Bruijn <willemdebruijn.kernel@gmail.com> Signed-off-by: Simon Horman <horms@kernel.org> Acked-by: Willem de Bruijn <willemb@google.com> Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2024-08-22MAINTAINERS: Add sonet.h to ATM section of MAINTAINERSSimon Horman
This is part of an effort to assign a section in MAINTAINERS to header files that relate to Networking. In this case the files with "net" in their name. It seems that sonet.h is included in ATM related source files, and thus that ATM is the most relevant section for these files. Cc: Chas Williams <3chas3@gmail.com> Signed-off-by: Simon Horman <horms@kernel.org> Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2024-08-22nfp: bpf: Use kmemdup_array instead of kmemdup for multiple allocationYu Jiaoliang
Let the kememdup_array() take care about multiplication and possible overflows. Signed-off-by: Yu Jiaoliang <yujiaoliang@vivo.com> Signed-off-by: Louis Peens <louis.peens@corigine.com> Reviewed-by: Simon Horman <horms@kernel.org> Link: https://patch.msgid.link/20240821081447.12430-1-yujiaoliang@vivo.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2024-08-22net: airoha: configure hw mac address according to the port idLorenzo Bianconi
GDM1 port on EN7581 SoC is connected to the lan dsa switch. GDM{2,3,4} can be used as wan port connected to an external phy module. Configure hw mac address registers according to the port id. Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Link: https://patch.msgid.link/20240821-airoha-eth-wan-mac-addr-v2-1-8706d0cd6cd5@kernel.org Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2024-08-22octeontx2-af: Fix CPT AF register offset calculationBharat Bhushan
Some CPT AF registers are per LF and others are global. Translation of PF/VF local LF slot number to actual LF slot number is required only for accessing perf LF registers. CPT AF global registers access do not require any LF slot number. Also, there is no reason CPT PF/VF to know actual lf's register offset. Without this fix microcode loading will fail, VFs cannot be created and hardware is not usable. Fixes: bc35e28af789 ("octeontx2-af: replace cpt slot with lf id on reg write") Signed-off-by: Bharat Bhushan <bbhushan2@marvell.com> Reviewed-by: Simon Horman <horms@kernel.org> Link: https://patch.msgid.link/20240821070558.1020101-1-bbhushan2@marvell.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2024-08-22net: phy: realtek: Fix setting of PHY LEDs Mode B bit on RTL8211FSava Jakovljev
The current implementation incorrectly sets the mode bit of the PHY chip. Bit 15 (RTL8211F_LEDCR_MODE) should not be shifted together with the configuration nibble of a LED- it should be set independently of the index of the LED being configured. As a consequence, the RTL8211F LED control is actually operating in Mode A. Fix the error by or-ing final register value to write with a const-value of RTL8211F_LEDCR_MODE, thus setting Mode bit explicitly. Fixes: 17784801d888 ("net: phy: realtek: Add support for PHY LEDs on RTL8211F") Signed-off-by: Sava Jakovljev <savaj@meyersound.com> Reviewed-by: Marek Vasut <marex@denx.de> Link: https://patch.msgid.link/PAWP192MB21287372F30C4E55B6DF6158C38E2@PAWP192MB2128.EURP192.PROD.OUTLOOK.COM Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2024-08-22selftests: net: add helper for checking if nettest is availableJakub Kicinski
A few tests check if nettest exists in the $PATH before adding $PWD to $PATH and re-checking. They don't discard stderr on the first check (and nettest is built as part of selftests, so it's pretty normal for it to not be available in system $PATH). This leads to output noise: which: no nettest in (/home/virtme/tools/fs/bin:/home/virtme/tools/fs/sbin:/home/virtme/tools/fs/usr/bin:/home/virtme/tools/fs/usr/sbin:/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin) Add a common helper for the check which does silence stderr. There is another small functional change hiding here, because pmtu.sh and fib_rule_tests.sh used to return from the test case rather than completely exit. Building nettest is not hard, there should be no need to maintain the ability to selectively skip cases in its absence. Reviewed-by: Ido Schimmel <idosch@nvidia.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org> Reviewed-by: Hangbin Liu <liuhangbin@gmail.com> Link: https://patch.msgid.link/20240821012227.1398769-1-kuba@kernel.org Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2024-08-22net: ngbe: Fix phy mode set to external phyMengyuan Lou
The MAC only has add the TX delay and it can not be modified. MAC and PHY are both set the TX delay cause transmission problems. So just disable TX delay in PHY, when use rgmii to attach to external phy, set PHY_INTERFACE_MODE_RGMII_RXID to phy drivers. And it is does not matter to internal phy. Fixes: bc2426d74aa3 ("net: ngbe: convert phylib to phylink") Signed-off-by: Mengyuan Lou <mengyuanlou@net-swift.com> Cc: stable@vger.kernel.org # 6.3+ Reviewed-by: Jacob Keller <jacob.e.keller@intel.com> Link: https://patch.msgid.link/E6759CF1387CF84C+20240820030425.93003-1-mengyuanlou@net-swift.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2024-08-22netfilter: flowtable: validate vlan headerPablo Neira Ayuso
Ensure there is sufficient room to access the protocol field of the VLAN header, validate it once before the flowtable lookup. ===================================================== BUG: KMSAN: uninit-value in nf_flow_offload_inet_hook+0x45a/0x5f0 net/netfilter/nf_flow_table_inet.c:32 nf_flow_offload_inet_hook+0x45a/0x5f0 net/netfilter/nf_flow_table_inet.c:32 nf_hook_entry_hookfn include/linux/netfilter.h:154 [inline] nf_hook_slow+0xf4/0x400 net/netfilter/core.c:626 nf_hook_ingress include/linux/netfilter_netdev.h:34 [inline] nf_ingress net/core/dev.c:5440 [inline] Fixes: 4cd91f7c290f ("netfilter: flowtable: add vlan support") Reported-by: syzbot+8407d9bb88cd4c6bf61a@syzkaller.appspotmail.com Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2024-08-22Merge branch 'net-ipv6-ioam6-introduce-tunsrc'Paolo Abeni
Justin Iurman says: ==================== net: ipv6: ioam6: introduce tunsrc This series introduces a new feature called "tunsrc" (just like seg6 already does). v3: - address Jakub's comments v2: - add links to performance result figures (see patch#2 description) - move the ipv6_addr_any() check out of the datapath ==================== Link: https://patch.msgid.link/20240817131818.11834-1-justin.iurman@uliege.be Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2024-08-22net: ipv6: ioam6: new feature tunsrcJustin Iurman
This patch provides a new feature (i.e., "tunsrc") for the tunnel (i.e., "encap") mode of ioam6. Just like seg6 already does, except it is attached to a route. The "tunsrc" is optional: when not provided (by default), the automatic resolution is applied. Using "tunsrc" when possible has a benefit: performance. See the comparison: - before (= "encap" mode): https://ibb.co/bNCzvf7 - after (= "encap" mode with "tunsrc"): https://ibb.co/PT8L6yq Signed-off-by: Justin Iurman <justin.iurman@uliege.be> Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2024-08-22net: ipv6: ioam6: code alignmentJustin Iurman
This patch prepares the next one by correcting the alignment of some lines. Signed-off-by: Justin Iurman <justin.iurman@uliege.be> Signed-off-by: Paolo Abeni <pabeni@redhat.com>