- 14 May, 2024 28 commits
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Matthieu Baerts (NGI0) authored
Nothing from protocol.h depends on mptcp_pm_gen.h, only code from pm_netlink.c and pm_userspace.c depends on it. So this include can be moved where it is needed to avoid a "unused includes" warning. Reviewed-by:
Geliang Tang <geliang@kernel.org> Signed-off-by:
Matthieu Baerts (NGI0) <matttbe@kernel.org> Signed-off-by:
Mat Martineau <martineau@kernel.org> Link: https://lore.kernel.org/r/20240514011335.176158-8-martineau@kernel.orgSigned-off-by:
Jakub Kicinski <kuba@kernel.org>
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Matthieu Baerts (NGI0) authored
The 'else' statements are not needed here, because their previous 'if' block ends with a 'return'. This fixes CheckPatch warnings: WARNING: else is not generally useful after a break or return Reviewed-by:
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Matthieu Baerts (NGI0) authored
strcpy() performs no bounds checking on the destination buffer. This could result in linear overflows beyond the end of the buffer, leading to all kinds of misbehaviors. The safe replacement is strscpy() [1]. This is in preparation of a possible future step where all strcpy() uses will be removed in favour of strscpy() [2]. This fixes CheckPatch warnings: WARNING: Prefer strscpy over strcpy Link: https://www.kernel.org/doc/html/latest/process/deprecated.html#strcpy [1] Link: https://github.com/KSPP/linux/issues/88 [2] Reviewed-by:
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Gregory Detal authored
The sysctl lists the available schedulers that can be set using net.mptcp.scheduler similarly to net.ipv4.tcp_available_congestion_control. Signed-off-by:
Gregory Detal <gregory.detal@gmail.com> Reviewed-by:
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Matthieu Baerts (NGI0) authored
Up to recently, it has been recommended to use getsockopt(MPTCP_INFO) to check if a fallback to TCP happened, or if the client requested to use MPTCP. In this case, the userspace app is only interested by the returned value of the getsocktop() call, and can then give 0 for the option length, and NULL for the buffer address. An easy optimisation is then to stop early, and avoid filling a local buffer -- which now requires two different locks -- if it is not needed. Reviewed-by:
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Matthieu Baerts (NGI0) authored
SO_KEEPALIVE support has been added a while ago, as part of a series "adding SOL_SOCKET" support. To have a full control of this keep-alive feature, it is important to also support TCP_KEEP* socket options at the SOL_TCP level. Supporting them on the setsockopt() part is easy, it is just a matter of remembering each value in the MPTCP sock structure, and calling tcp_sock_set_keep*() helpers on each subflow. If the value is not modified (0), calling these helpers will not do anything. For the getsockopt() part, the corresponding value from the MPTCP sock structure or the default one is simply returned. All of this is very similar to other TCP_* socket options supported by MPTCP. It looks important for kernels supporting SO_KEEPALIVE, to also support TCP_KEEP* options as well: some apps seem to (wrongly) consider that if the former is supported, the latter ones will be supported as well. But also, not having this simple and isolated change is preventing MPTCP support in some apps, and libraries like GoLang [1]. This is why this patch is seen as a fix. Closes: https://github.com/multipath-tcp/mptcp_net-next/issues/383 Fixes: 1b3e7ede ("mptcp: setsockopt: handle SO_KEEPALIVE and SO_PRIORITY") Link: https://github.com/golang/go/issues/56539 [1] Acked-by:
Paolo Abeni <pabeni@redhat.com> Signed-off-by:
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Matthieu Baerts (NGI0) authored
SO_KEEPALIVE support has to be set on each subflow: on each TCP socket, where sk_prot->keepalive is defined. Technically, nothing has to be done on the MPTCP socket. That's why mptcp_sol_socket_sync_intval() was called instead of mptcp_sol_socket_intval(). Except that when nothing is done on the MPTCP socket, the getsockopt(SO_KEEPALIVE), handled in net/core/sock.c:sk_getsockopt(), will not know if SO_KEEPALIVE has been set on the different subflows or not. The fix is simple: simply call mptcp_sol_socket_intval() which will end up calling net/core/sock.c:sk_setsockopt() where the SOCK_KEEPOPEN flag will be set, the one used in sk_getsockopt(). So now, getsockopt(SO_KEEPALIVE) on an MPTCP socket will return the same value as the one previously set with setsockopt(SO_KEEPALIVE). Fixes: 1b3e7ede ("mptcp: setsockopt: handle SO_KEEPALIVE and SO_PRIORITY") Acked-by:
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Haiyang Zhang authored
Change the Kconfig dependency, so this driver can be built and run on ARM64 with 4K page size. 16/64K page sizes are not supported yet. Signed-off-by:
Haiyang Zhang <haiyangz@microsoft.com> Link: https://lore.kernel.org/r/1715632141-8089-1-git-send-email-haiyangz@microsoft.comSigned-off-by:
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Erick Archer authored
The "struct prestera_msg_vtcam_rule_add_req" uses a dynamically sized set of trailing elements. Specifically, it uses an array of structures of type "prestera_msg_acl_action actions_msg". The "struct prestera_msg_flood_domain_ports_set_req" also uses a dynamically sized set of trailing elements. Specifically, it uses an array of structures of type "prestera_msg_acl_action actions_msg". So, use the preferred way in the kernel declaring flexible arrays [1]. At the same time, prepare for the coming implementation by GCC and Clang of the __counted_by attribute. Flexible array members annotated with __counted_by can have their accesses bounds-checked at run-time via CONFIG_UBSAN_BOUNDS (for array indexing) and CONFIG_FORTIFY_SOURCE (for strcpy/memcpy-family functions). In this case, it is important to note that the attribute used is specifically __counted_by_le since the counters are of type __le32. The logic does not need to change since the counters for the flexible arrays are asigned before any access to the arrays. The order in which the structure prestera_msg_vtcam_rule_add_req and the structure prestera_msg_flood_domain_ports_set_req are defined must be changed to avoid incomplete type errors. Also, avoid the open-coded arithmetic in memory allocator functions [2] using the "struct_size" macro. Moreover, the new structure members also allow us to avoid the open- coded arithmetic on pointers. So, take advantage of this refactoring accordingly. This code was detected with the help of Coccinelle, and audited and modified manually. Link: https://www.kernel.org/doc/html/next/process/deprecated.html#zero-length-and-one-element-arrays [1] Link: https://www.kernel.org/doc/html/next/process/deprecated.html#open-coded-arithmetic-in-allocator-arguments [2] Signed-off-by:
Erick Archer <erick.archer@outlook.com> Reviewed-by:
Simon Horman <horms@kernel.org> Reviewed-by:
Kees Cook <keescook@chromium.org> Link: https://lore.kernel.org/r/AS8PR02MB7237E8469568A59795F1F0408BE12@AS8PR02MB7237.eurprd02.prod.outlook.comSigned-off-by:
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Jakub Kicinski authored
Jason Xing says: ==================== tcp: support rstreasons in the passive logic In this series, I split all kinds of reasons into five part which, I think, can be easily reviewed. I respectively implement corresponding rstreasons in those functions. After this, we can trace the whole tcp passive reset with clear reasons. ==================== Link: https://lore.kernel.org/r/20240510122502.27850-1-kerneljasonxing@gmail.comSigned-off-by:
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Jason Xing authored
We're going to send an RST due to invalid syn packet which is already checked whether 1) it is in sequence, 2) it is a retransmitted skb. As RFC 793 says, if the state of socket is not CLOSED/LISTEN/SYN-SENT, then we should send an RST when receiving bad syn packet: "fourth, check the SYN bit,...If the SYN is in the window it is an error, send a reset" Signed-off-by:
Jason Xing <kernelxing@tencent.com> Link: https://lore.kernel.org/r/20240510122502.27850-6-kerneljasonxing@gmail.comSigned-off-by:
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Jason Xing authored
There are two possible cases where TCP layer can send an RST. Since they happen in the same place, I think using one independent reason is enough to identify this special situation. Signed-off-by:
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Jason Xing authored
Like the previous patch does in this series, finish the conversion map is enough to let rstreason mechanism work in this function. Signed-off-by:
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Jason Xing authored
Based on the existing skb drop reason, updating the rstreason map can help us finish the rstreason job in this function. Signed-off-by:
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Jason Xing authored
In this function, only updating the map can finish the job for socket reset reason because the corresponding drop reasons are ready. Signed-off-by:
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Jakub Kicinski authored
Romain Gantois says: ==================== net: stmmac: Add support for RZN1 GMAC devices This is version seven of my series that adds support for a Gigabit Ethernet controller featured in the Renesas r9a06g032 SoC, of the RZ/N1 family. This GMAC device is based on a Synopsys IP and is compatible with the stmmac driver. My former colleague Clément Léger originally sent a series for this driver, but an issue in bringing up the PCS clock had blocked the upstreaming process. This issue has since been resolved by the following series: https://lore.kernel.org/all/20240326-rxc_bugfix-v6-0-24a74e5c761f@bootlin.com/ This series consists of a devicetree binding describing the RZN1 GMAC controller IP, a node for the GMAC1 device in the r9a06g032 SoC device tree, and the GMAC driver itself which is a glue layer in stmmac. There are also two patches by Russell that improve pcs initialization handling in stmmac. ==================== Link: https://lore.kernel.org/r/20240513-rzn1-gmac1-v7-0-6acf58b5440d@bootlin.comSigned-off-by:
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Clément Léger authored
Add support for the Renesas RZ/N1 GMAC. This support can make use of a custom RZ/N1 PCS which is fetched by parsing the pcs-handle device tree property. Signed-off-by:
Clément Léger <clement.leger@bootlin.com> Co-developed-by:
Romain Gantois <romain.gantois@bootlin.com> Signed-off-by:
Russell King (Oracle) <rmk+kernel@armlinux.org.uk> Reviewed-by:
Hariprasad Kelam <hkelam@marvell.com> Link: https://lore.kernel.org/r/20240513-rzn1-gmac1-v7-6-6acf58b5440d@bootlin.comSigned-off-by:
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Russell King (Oracle) authored
Use the newly introduced pcs_init() and pcs_exit() operations to create and destroy the PCS instance at a more appropriate moment during the driver lifecycle, thereby avoiding publishing a network device to userspace that has not yet finished its PCS initialisation. There are other similar issues with this driver which remain unaddressed, but these are out of scope for this patch. Signed-off-by:
Maxime Chevallier <maxime.chevallier@bootlin.com> [rgantois: removed second parameters of new callbacks] Signed-off-by:
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Russell King (Oracle) authored
Introduce a mechanism whereby platforms can create their PCS instances prior to the network device being published to userspace, but after some of the core stmmac initialisation has been completed. This means that the data structures that platforms need will be available. Signed-off-by:
Serge Semin <fancer.lancer@gmail.com> Co-developed-by:
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Serge Semin authored
A pcs_init() callback will be introduced to stmmac in a future patch. This new function will be called during the hardware initialization phase. Instead of separately initializing XPCS and PCS components, let's group all PCS-related hardware initialization logic in the current stmmac_xpcs_setup() function. Rename stmmac_xpcs_setup() to stmmac_pcs_setup() and move the conditional call to stmmac_xpcs_setup() inside the function itself. Signed-off-by:
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Serge Semin authored
Currently the XPCS handler destruction is performed in the stmmac_mdio_unregister() method. It doesn't look good because the handler isn't originally created in the corresponding protagonist stmmac_mdio_unregister(), but in the stmmac_xpcs_setup() function. In order to have more coherent MDIO and XPCS setup/cleanup procedures, let's move the DW XPCS destruction to the dedicated stmmac_pcs_clean() method. This method will also be used to cleanup PCS hardware using the pcs_exit() callback that will be introduced to stmmac in a subsequent patch. Signed-off-by:
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Clément Léger authored
The RZ/N1 series of MPUs feature up to two Gigabit Ethernet controllers. These controllers are based on Synopsys IPs. They can be connected to RZ/N1 RGMII/RMII converters. Add a binding that describes these GMAC devices. Signed-off-by:
Rob Herring <robh@kernel.org> Reviewed-by:
Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by:
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Asbjørn Sloth Tønnesen authored
This driver currently doesn't support any control flags. Use flow_rule_match_has_control_flags() to check for control flags, such as can be set through `tc flower ... ip_flags frag`. In case any control flags are masked, flow_rule_match_has_control_flags() sets a NL extended error message, and we return -EOPNOTSUPP. Only compile-tested. Signed-off-by:
Asbjørn Sloth Tønnesen <ast@fiberby.net> Reviewed-by:
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Jakub Kicinski authored
Xuan Zhuo says: ==================== virtio_net: rx enable premapped mode by default Actually, for the virtio drivers, we can enable premapped mode whatever the value of use_dma_api. Because we provide the virtio dma apis. So the driver can enable premapped mode unconditionally. This patch set makes the big mode of virtio-net to support premapped mode. And enable premapped mode for rx by default. Based on the following points, we do not use page pool to manage these pages: 1. virtio-net uses the DMA APIs wrapped by virtio core. Therefore, we can only prevent the page pool from performing DMA operations, and let the driver perform DMA operations on the allocated pages. 2. But when the page pool releases the page, we have no chance to execute dma unmap. 3. A solution to #2 is to execute dma unmap every time before putting the page back to the page pool. (This is actually a waste, we don't execute unmap so frequently.) 4. But there is another problem, we still need to use page.dma_addr to save the dma address. Using page.dma_addr while using page pool is unsafe behavior. 5. And we need space the chain the pages submitted once to virtio core. More: https://lore.kernel.org/all/CACGkMEu=Aok9z2imB_c5qVuujSh=vjj1kx12fy9N7hqyi+M5Ow@mail.gmail.com/ Why we do not use the page space to store the dma? http://lore.kernel.org/all/CACGkMEuyeJ9mMgYnnB42=hw6umNuo=agn7VBqBqYPd7GN=+39Q@mail.gmail.com ==================== Link: https://lore.kernel.org/r/20240511031404.30903-1-xuanzhuo@linux.alibaba.comSigned-off-by: -
Xuan Zhuo authored
We call the build_skb() actually without copying data. The comment is misleading. So remove it. Signed-off-by:
Xuan Zhuo <xuanzhuo@linux.alibaba.com> Acked-by:
Jason Wang <jasowang@redhat.com> Link: https://lore.kernel.org/r/20240511031404.30903-5-xuanzhuo@linux.alibaba.comSigned-off-by:
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Xuan Zhuo authored
Now, the premapped mode can be enabled unconditionally. So we can remove the failover code for merge and small mode. Signed-off-by:
Larysa Zaremba <larysa.zaremba@intel.com> Link: https://lore.kernel.org/r/20240511031404.30903-4-xuanzhuo@linux.alibaba.comSigned-off-by:
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Xuan Zhuo authored
The virtio-net big mode did not enable premapped mode, so we did not need to check the unmap. And the subsequent commit will remove the failover code for failing enable premapped for merge and small mode. So we need to remove the checking do_dma code in the big mode path. Signed-off-by:
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Xuan Zhuo authored
Now, we have virtio DMA APIs, the driver can be the premapped mode whatever the virtio core uses dma api or not. So remove the limit of checking use_dma_api from virtqueue_set_dma_premapped(). Signed-off-by:
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- 13 May, 2024 12 commits
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https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-nextJakub Kicinski authored
Daniel Borkmann says: ==================== pull-request: bpf-next 2024-05-13 We've added 119 non-merge commits during the last 14 day(s) which contain a total of 134 files changed, 9462 insertions(+), 4742 deletions(-). The main changes are: 1) Add BPF JIT support for 32-bit ARCv2 processors, from Shahab Vahedi. 2) Add BPF range computation improvements to the verifier in particular around XOR and OR operators, refactoring of checks for range computation and relaxing MUL range computation so that src_reg can also be an unknown scalar, from Cupertino Miranda. 3) Add support to attach kprobe BPF programs through kprobe_multi link in a session mode, meaning, a BPF program is attached to both function entry and return, the entry program can decide if the return program gets executed and the entry program can share u64 cookie value with return program. Session mode is a common use-case for tetragon and bpftrace, from Jiri Olsa. 4) Fix a potential overflow in libbpf's ring__consume_n() and improve libbpf as well as BPF selftest's struct_ops handling, from Andrii Nakryiko. 5) Improvements to BPF selftests in context of BPF gcc backend, from Jose E. Marchesi & David Faust. 6) Migrate remaining BPF selftest tests from test_sock_addr.c to prog_test- -style in order to retire the old test, run it in BPF CI and additionally expand test coverage, from Jordan Rife. 7) Big batch for BPF selftest refactoring in order to remove duplicate code around common network helpers, from Geliang Tang. 8) Another batch of improvements to BPF selftests to retire obsolete bpf_tcp_helpers.h as everything is available vmlinux.h, from Martin KaFai Lau. 9) Fix BPF map tear-down to not walk the map twice on free when both timer and wq is used, from Benjamin Tissoires. 10) Fix BPF verifier assumptions about socket->sk that it can be non-NULL, from Alexei Starovoitov. 11) Change BTF build scripts to using --btf_features for pahole v1.26+, from Alan Maguire. 12) Small improvements to BPF reusing struct_size() and krealloc_array(), from Andy Shevchenko. 13) Fix s390 JIT to emit a barrier for BPF_FETCH instructions, from Ilya Leoshkevich. 14) Extend TCP ->cong_control() callback in order to feed in ack and flag parameters and allow write-access to tp->snd_cwnd_stamp from BPF program, from Miao Xu. 15) Add support for internal-only per-CPU instructions to inline bpf_get_smp_processor_id() helper call for arm64 and riscv64 BPF JITs, from Puranjay Mohan. 16) Follow-up to remove the redundant ethtool.h from tooling infrastructure, from Tushar Vyavahare. 17) Extend libbpf to support "module:<function>" syntax for tracing programs, from Viktor Malik. * tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next: (119 commits) bpf: make list_for_each_entry portable bpf: ignore expected GCC warning in test_global_func10.c bpf: disable strict aliasing in test_global_func9.c selftests/bpf: Free strdup memory in xdp_hw_metadata selftests/bpf: Fix a few tests for GCC related warnings. bpf: avoid gcc overflow warning in test_xdp_vlan.c tools: remove redundant ethtool.h from tooling infra selftests/bpf: Expand ATTACH_REJECT tests selftests/bpf: Expand getsockname and getpeername tests sefltests/bpf: Expand sockaddr hook deny tests selftests/bpf: Expand sockaddr program return value tests selftests/bpf: Retire test_sock_addr.(c|sh) selftests/bpf: Remove redundant sendmsg test cases selftests/bpf: Migrate ATTACH_REJECT test cases selftests/bpf: Migrate expected_attach_type tests selftests/bpf: Migrate wildcard destination rewrite test selftests/bpf: Migrate sendmsg6 v4 mapped address tests selftests/bpf: Migrate sendmsg deny test cases selftests/bpf: Migrate WILDCARD_IP test selftests/bpf: Handle SYSCALL_EPERM and SYSCALL_ENOTSUPP test cases ... ==================== Link: https://lore.kernel.org/r/20240513134114.17575-1-daniel@iogearbox.netSigned-off-by: -
Vladimir Oltean authored
Nothing useful is done with the LPA variable in lynx_pcs_get_state_2500basex(), we can just remove the read. Signed-off-by:
Vladimir Oltean <vladimir.oltean@nxp.com> Reviewed-by:
Andrew Lunn <andrew@lunn.ch> Link: https://lore.kernel.org/r/20240513115345.2452799-1-vladimir.oltean@nxp.comSigned-off-by:
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Jakub Kicinski authored
Tariq Toukan says: ==================== mlx5 misc patches This series includes patches for the mlx5 driver. Patch 1 by Shay enables LAG with HCAs of 8 ports. Patch 2 by Carolina optimizes the safe switch channels operation for the TX-only changes. Patch 3 by Parav cleans up some unused code. ==================== Link: https://lore.kernel.org/r/20240512124306.740898-1-tariqt@nvidia.comSigned-off-by:
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Parav Pandit authored
MSIX irq allocation and free APIs are no longer in use. Hence, remove the dead code. Signed-off-by:
Parav Pandit <parav@nvidia.com> Reviewed-by:
Dragos Tatulea <dtatulea@nvidia.com> Signed-off-by:
Tariq Toukan <tariqt@nvidia.com> Reviewed-by:
Kalesh AP <kalesh-anakkur.purayil@broadcom.com> Link: https://lore.kernel.org/r/20240512124306.740898-4-tariqt@nvidia.comSigned-off-by:
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Carolina Jubran authored
It is not appropriate for the mlx5e_num_channels_changed function to be called solely for updating the TX queues, even if the channels number has not been changed. Move the code responsible for updating the TC and TX queues from mlx5e_num_channels_changed and produce a new function called mlx5e_update_tc_and_tx_queues. This new function should only be called when the channels number remains unchanged. Signed-off-by:
Carolina Jubran <cjubran@nvidia.com> Signed-off-by:
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Shay Drory authored
This patch adds to mlx5 drivers support for 8 ports HCAs. Starting with ConnectX-8 HCAs with 8 ports are possible. As most driver parts aren't affected by such configuration most driver code is unchanged. Specially the only affected areas are: - Lag - Multiport E-Switch - Single FDB E-Switch All of the above are already factored in generic way, and LAG and VF LAG are tested, so all that left is to change a #define and remove checks which are no longer needed. However, Multiport E-Switch is not tested yet, so it is left untouched. This patch will allow to create hardware LAG/VF LAG when all 8 ports are added to the same bond device. for example, In order to activate the hardware lag a user can execute the following: ip link add bond0 type bond ip link set bond0 type bond miimon 100 mode 2 ip link set eth2 master bond0 ip link set eth3 master bond0 ip link set eth4 master bond0 ip link set eth5 master bond0 ip link set eth6 master bond0 ip link set eth7 master bond0 ip link set eth8 master bond0 ip link set eth9 master bond0 Where eth2, eth3, eth4, eth5, eth6, eth7, eth8 and eth9 are the PFs of the same HCA. Signed-off-by:
Shay Drory <shayd@nvidia.com> Reviewed-by:
Mark Bloch <mbloch@nvidia.com> Signed-off-by:
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Lukasz Majewski authored
After this change the single SAN device (ns3eth1) is now replaced with two SAN devices - respectively ns4eth1 and ns5eth1. It is possible to extend this script to have more SAN devices connected by adding them to ns3br1 bridge. Signed-off-by:
Lukasz Majewski <lukma@denx.de> Link: https://lore.kernel.org/r/20240510143710.3916631-1-lukma@denx.deSigned-off-by:
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Jakub Kicinski authored
Oleksij Rempel says: ==================== net: dsa: microchip: DCB fixes This patch series address recommendation to rename IPV to IPM to avoid confusion with IPV name used in 802.1Qci PSFP. And restores default "PCP only" configuration as source of priorities to avoid possible regressions. ==================== Link: https://lore.kernel.org/r/20240510053828.2412516-1-o.rempel@pengutronix.deSigned-off-by:
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Oleksij Rempel authored
Before DCB support, the KSZ driver had only PCP as source of packet priority values. To avoid regressions, make PCP only as default value. User will need enable DSCP support manually. This patch do not affect other KSZ8 related quirks. User will still be warned by setting not support configurations for the port 2. Signed-off-by:
Oleksij Rempel <o.rempel@pengutronix.de> Acked-by:
Arun Ramadoss <arun.ramadoss@microchip.com> Reviewed-by:
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Oleksij Rempel authored
All other functions are commented. Add missing comments to following functions: ksz_set_global_dscp_entry() ksz_port_add_dscp_prio() ksz_port_del_dscp_prio() Signed-off-by:
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Oleksij Rempel authored
IPV is added and used term in 802.1Qci PSFP and merged into 802.1Q (from 802.1Q-2018) for another functions. Even it does similar operation holding temporal priority value internally (as it is named), because KSZ datasheet doesn't use the term of IPV (Internal Priority Value) and avoiding any confusion later when PSFP is in the Linux world, it is better to rename IPV to IPM (Internal Priority Mapping). In addition, LAN937x documentation already use IPV for 802.1Qci PSFP related functionality. Suggested-by:
Woojung Huh <Woojung.Huh@microchip.com> Signed-off-by:
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Samuel Thibault authored
628bc3e5 ("l2tp: Support several sockets with same IP/port quadruple") added support for several L2TPv2 tunnels using the same IP/port quadruple, but if an L2TPv3 socket exists it could eat all the trafic. We thus have to first use the version from the packet to get the proper tunnel, and only then check that the version matches. Signed-off-by:
Samuel Thibault <samuel.thibault@ens-lyon.org> Reviewed-by:
James Chapman <jchapman@katalix.com> Link: https://lore.kernel.org/r/20240509205812.4063198-1-samuel.thibault@ens-lyon.orgSigned-off-by:
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