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path: root/drivers/net/ethernet/sfc/efx.c
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2023-07-28sfc: Remove support for siena high priority queueMartin Habets1-1/+0
This also removes TC support code, since that was never supported for EF10. TC support for EF100 is not handled from efx.c. Signed-off-by: Martin Habets <habetsm.xilinx@gmail.com> Acked-by: Edward Cree <ecree.xilinx@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2023-06-12sfc: Add devlink dev info support for EF10Martin Habets1-0/+9
Reuse the work done for EF100 to add devlink support for EF10. There is no devlink port support for EF10. Signed-off-by: Martin Habets <habetsm.xilinx@gmail.com> Reviewed-by: Simon Horman <simon.horman@corigine.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2023-04-21Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netJakub Kicinski1-1/+0
Adjacent changes: net/mptcp/protocol.h 63740448a32e ("mptcp: fix accept vs worker race") 2a6a870e44dd ("mptcp: stops worker on unaccepted sockets at listener close") ddb1a072f858 ("mptcp: move first subflow allocation at mpc access time") Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-04-17sfc: Fix use-after-free due to selftest_workDing Hui1-1/+0
There is a use-after-free scenario that is: When the NIC is down, user set mac address or vlan tag to VF, the xxx_set_vf_mac() or xxx_set_vf_vlan() will invoke efx_net_stop() and efx_net_open(), since netif_running() is false, the port will not start and keep port_enabled false, but selftest_work is scheduled in efx_net_open(). If we remove the device before selftest_work run, the efx_stop_port() will not be called since the NIC is down, and then efx is freed, we will soon get a UAF in run_timer_softirq() like this: [ 1178.907941] ================================================================== [ 1178.907948] BUG: KASAN: use-after-free in run_timer_softirq+0xdea/0xe90 [ 1178.907950] Write of size 8 at addr ff11001f449cdc80 by task swapper/47/0 [ 1178.907950] [ 1178.907953] CPU: 47 PID: 0 Comm: swapper/47 Kdump: loaded Tainted: G O --------- -t - 4.18.0 #1 [ 1178.907954] Hardware name: SANGFOR X620G40/WI2HG-208T1061A, BIOS SPYH051032-U01 04/01/2022 [ 1178.907955] Call Trace: [ 1178.907956] <IRQ> [ 1178.907960] dump_stack+0x71/0xab [ 1178.907963] print_address_description+0x6b/0x290 [ 1178.907965] ? run_timer_softirq+0xdea/0xe90 [ 1178.907967] kasan_report+0x14a/0x2b0 [ 1178.907968] run_timer_softirq+0xdea/0xe90 [ 1178.907971] ? init_timer_key+0x170/0x170 [ 1178.907973] ? hrtimer_cancel+0x20/0x20 [ 1178.907976] ? sched_clock+0x5/0x10 [ 1178.907978] ? sched_clock_cpu+0x18/0x170 [ 1178.907981] __do_softirq+0x1c8/0x5fa [ 1178.907985] irq_exit+0x213/0x240 [ 1178.907987] smp_apic_timer_interrupt+0xd0/0x330 [ 1178.907989] apic_timer_interrupt+0xf/0x20 [ 1178.907990] </IRQ> [ 1178.907991] RIP: 0010:mwait_idle+0xae/0x370 If the NIC is not actually brought up, there is no need to schedule selftest_work, so let's move invoking efx_selftest_async_start() into efx_start_all(), and it will be canceled by broughting down. Fixes: dd40781e3a4e ("sfc: Run event/IRQ self-test asynchronously when interface is brought up") Fixes: e340be923012 ("sfc: add ndo_set_vf_mac() function for EF10") Debugged-by: Huang Cun <huangcun@sangfor.com.cn> Cc: Donglin Peng <pengdonglin@sangfor.com.cn> Suggested-by: Martin Habets <habetsm.xilinx@gmail.com> Signed-off-by: Ding Hui <dinghui@sangfor.com.cn> Signed-off-by: David S. Miller <davem@davemloft.net>
2023-03-31Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netJakub Kicinski1-10/+7
Conflicts: drivers/net/ethernet/mediatek/mtk_ppe.c 3fbe4d8c0e53 ("net: ethernet: mtk_eth_soc: ppe: add support for flow accounting") 924531326e2d ("net: ethernet: mtk_eth_soc: add missing ppe cache flush when deleting a flow") Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-03-25sfc: ef10: don't overwrite offload features at NIC resetÍñigo Huguet1-10/+7
At NIC reset, some offload features related to encapsulated traffic might have changed (this mainly happens if the firmware-variant is changed with the sfboot userspace tool). Because of this, features are checked and set again at reset time. However, this was not done right, and some features were improperly overwritten at NIC reset: - Tunneled IPv6 segmentation was always disabled - Features disabled with ethtool were reenabled - Features that becomes unsupported after the reset were not disabled Also, checking if the device supports IPV6_CSUM to enable TSO6 is no longer necessary because all currently supported devices support it. Additionally, move the assignment of some other features to the EF10_OFFLOAD_FEATURES macro, like it is done in ef100, leaving the selection of features in efx_pci_probe_post_io a bit cleaner. Fixes: ffffd2454a7a ("sfc: correctly advertise tunneled IPv6 segmentation") Fixes: 24b2c3751aa3 ("sfc: advertise encapsulated offloads on EF10") Reported-by: Tianhao Zhao <tizhao@redhat.com> Suggested-by: Jonathan Cooper <jonathan.s.cooper@amd.com> Tested-by: Jonathan Cooper <jonathan.s.cooper@amd.com> Signed-off-by: Íñigo Huguet <ihuguet@redhat.com> Acked-by: Edward Cree <ecree.xilinx@gmail.com> Link: https://lore.kernel.org/r/20230323083417.7345-1-ihuguet@redhat.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-03-09sfc: Drop redundant pci_enable_pcie_error_reporting()Bjorn Helgaas1-5/+0
pci_enable_pcie_error_reporting() enables the device to send ERR_* Messages. Since f26e58bf6f54 ("PCI/AER: Enable error reporting when AER is native"), the PCI core does this for all devices during enumeration, so the driver doesn't need to do it itself. Remove the redundant pci_enable_pcie_error_reporting() call from the driver. Also remove the corresponding pci_disable_pcie_error_reporting() from the driver .remove() path. Note that this only controls ERR_* Messages from the device. An ERR_* Message may cause the Root Port to generate an interrupt, depending on the AER Root Error Command register managed by the AER service driver. Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Cc: Martin Habets <habetsm.xilinx@gmail.com> Acked-by: Edward Cree <ecree.xilinx@gmail.com> Acked-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-02-11Daniel Borkmann says:Jakub Kicinski1-0/+4
==================== pull-request: bpf-next 2023-02-11 We've added 96 non-merge commits during the last 14 day(s) which contain a total of 152 files changed, 4884 insertions(+), 962 deletions(-). There is a minor conflict in drivers/net/ethernet/intel/ice/ice_main.c between commit 5b246e533d01 ("ice: split probe into smaller functions") from the net-next tree and commit 66c0e13ad236 ("drivers: net: turn on XDP features") from the bpf-next tree. Remove the hunk given ice_cfg_netdev() is otherwise there a 2nd time, and add XDP features to the existing ice_cfg_netdev() one: [...] ice_set_netdev_features(netdev); netdev->xdp_features = NETDEV_XDP_ACT_BASIC | NETDEV_XDP_ACT_REDIRECT | NETDEV_XDP_ACT_XSK_ZEROCOPY; ice_set_ops(netdev); [...] Stephen's merge conflict mail: https://lore.kernel.org/bpf/20230207101951.21a114fa@canb.auug.org.au/ The main changes are: 1) Add support for BPF trampoline on s390x which finally allows to remove many test cases from the BPF CI's DENYLIST.s390x, from Ilya Leoshkevich. 2) Add multi-buffer XDP support to ice driver, from Maciej Fijalkowski. 3) Add capability to export the XDP features supported by the NIC. Along with that, add a XDP compliance test tool, from Lorenzo Bianconi & Marek Majtyka. 4) Add __bpf_kfunc tag for marking kernel functions as kfuncs, from David Vernet. 5) Add a deep dive documentation about the verifier's register liveness tracking algorithm, from Eduard Zingerman. 6) Fix and follow-up cleanups for resolve_btfids to be compiled as a host program to avoid cross compile issues, from Jiri Olsa & Ian Rogers. 7) Batch of fixes to the BPF selftest for xdp_hw_metadata which resulted when testing on different NICs, from Jesper Dangaard Brouer. 8) Fix libbpf to better detect kernel version code on Debian, from Hao Xiang. 9) Extend libbpf to add an option for when the perf buffer should wake up, from Jon Doron. 10) Follow-up fix on xdp_metadata selftest to just consume on TX completion, from Stanislav Fomichev. 11) Extend the kfuncs.rst document with description on kfunc lifecycle & stability expectations, from David Vernet. 12) Fix bpftool prog profile to skip attaching to offline CPUs, from Tonghao Zhang. ==================== Link: https://lore.kernel.org/r/20230211002037.8489-1-daniel@iogearbox.net Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-02-08sfc: move xdp_features configuration in efx_pci_probe_post_io()Lorenzo Bianconi1-4/+4
Move xdp_features configuration from efx_pci_probe() to efx_pci_probe_post_io() since it is where all the other basic netdev features are initialised. Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Link: https://lore.kernel.org/r/9bd31c9a29bcf406ab90a249a28fc328e5578fd1.1675875404.git.lorenzo@kernel.org Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
2023-02-03drivers: net: turn on XDP featuresMarek Majtyka1-0/+4
A summary of the flags being set for various drivers is given below. Note that XDP_F_REDIRECT_TARGET and XDP_F_FRAG_TARGET are features that can be turned off and on at runtime. This means that these flags may be set and unset under RTNL lock protection by the driver. Hence, READ_ONCE must be used by code loading the flag value. Also, these flags are not used for synchronization against the availability of XDP resources on a device. It is merely a hint, and hence the read may race with the actual teardown of XDP resources on the device. This may change in the future, e.g. operations taking a reference on the XDP resources of the driver, and in turn inhibiting turning off this flag. However, for now, it can only be used as a hint to check whether device supports becoming a redirection target. Turn 'hw-offload' feature flag on for: - netronome (nfp) - netdevsim. Turn 'native' and 'zerocopy' features flags on for: - intel (i40e, ice, ixgbe, igc) - mellanox (mlx5). - stmmac - netronome (nfp) Turn 'native' features flags on for: - amazon (ena) - broadcom (bnxt) - freescale (dpaa, dpaa2, enetc) - funeth - intel (igb) - marvell (mvneta, mvpp2, octeontx2) - mellanox (mlx4) - mtk_eth_soc - qlogic (qede) - sfc - socionext (netsec) - ti (cpsw) - tap - tsnep - veth - xen - virtio_net. Turn 'basic' (tx, pass, aborted and drop) features flags on for: - netronome (nfp) - cavium (thunder) - hyperv. Turn 'redirect_target' feature flag on for: - amanzon (ena) - broadcom (bnxt) - freescale (dpaa, dpaa2) - intel (i40e, ice, igb, ixgbe) - ti (cpsw) - marvell (mvneta, mvpp2) - sfc - socionext (netsec) - qlogic (qede) - mellanox (mlx5) - tap - veth - virtio_net - xen Reviewed-by: Gerhard Engleder <gerhard@engleder-embedded.com> Reviewed-by: Simon Horman <simon.horman@corigine.com> Acked-by: Stanislav Fomichev <sdf@google.com> Acked-by: Jakub Kicinski <kuba@kernel.org> Co-developed-by: Kumar Kartikeya Dwivedi <memxor@gmail.com> Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com> Co-developed-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Marek Majtyka <alardam@gmail.com> Link: https://lore.kernel.org/r/3eca9fafb308462f7edb1f58e451d59209aa07eb.1675245258.git.lorenzo@kernel.org Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2023-01-28sfc: correctly advertise tunneled IPv6 segmentationÍñigo Huguet1-1/+4
Recent sfc NICs are TSO capable for some tunnel protocols. However, it was not working properly because the feature was not advertised in hw_enc_features, but in hw_features only. Setting up a GENEVE tunnel and using iperf3 to send IPv4 and IPv6 traffic to the tunnel show, with tcpdump, that the IPv4 packets still had ~64k size but the IPv6 ones had only ~1500 bytes (they had been segmented by software, not offloaded). With this patch segmentation is offloaded as expected and the traffic is correctly received at the other end. Fixes: 24b2c3751aa3 ("sfc: advertise encapsulated offloads on EF10") Reported-by: Tianhao Zhao <tizhao@redhat.com> Signed-off-by: Íñigo Huguet <ihuguet@redhat.com> Acked-by: Martin Habets <habetsm.xilinx@gmail.com> Link: https://lore.kernel.org/r/20230125143513.25841-1-ihuguet@redhat.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-11-01sfc: Fix an error handling path in efx_pci_probe()Christophe JAILLET1-2/+6
If an error occurs after the first kzalloc() the corresponding memory allocation is never freed. Add the missing kfree() in the error handling path, as already done in the remove() function. Fixes: 7e773594dada ("sfc: Separate efx_nic memory from net_device memory") Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Acked-by: Martin Habets <habetsm.xilinx@gmail.com> Link: https://lore.kernel.org/r/dc114193121c52c8fa3779e49bdd99d4b41344a9.1667077009.git.christophe.jaillet@wanadoo.fr Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-09-13sfc: introduce shutdown entry point in efx pci driverPieter Jansen van Vuuren1-0/+12
Make the device inactive when the system shutdown callback has been invoked. This is achieved by freezing the driver and disabling the PCI bus mastering. Co-developed-by: Martin Habets <habetsm.xilinx@gmail.com> Signed-off-by: Martin Habets <habetsm.xilinx@gmail.com> Signed-off-by: Pieter Jansen van Vuuren <pieter.jansen-van-vuuren@amd.com> Acked-by: Edward Cree <ecree.xilinx@gmail.com> Link: https://lore.kernel.org/r/20220906105620.26179-1-pieter.jansen-van-vuuren@amd.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2022-09-01net: ethernet: move from strlcpy with unused retval to strscpyWolfram Sang1-1/+1
Follow the advice of the below link and prefer 'strscpy' in this subsystem. Conversion is 1:1 because the return value is not used. Generated by a coccinelle script. Link: https://lore.kernel.org/r/CAHk-=wgfRnXz0W3D37d01q3JFkr_i_uTL=V6A6G1oUZcprmknw@mail.gmail.com/ Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Reviewed-by: Petr Machata <petrm@nvidia.com> # For drivers/net/ethernet/mellanox/mlxsw Acked-by: Geoff Levand <geoff@infradead.org> # For ps3_gelic_net and spider_net_ethtool Acked-by: Tom Lendacky <thomas.lendacky@amd.com> # For drivers/net/ethernet/amd/xgbe/xgbe-ethtool.c Acked-by: Marcin Wojtas <mw@semihalf.com> # For drivers/net/ethernet/marvell/mvpp2 Reviewed-by: Leon Romanovsky <leonro@nvidia.com> # For drivers/net/ethernet/mellanox/mlx{4|5} Reviewed-by: Shay Agroskin <shayagr@amazon.com> # For drivers/net/ethernet/amazon/ena Acked-by: Krzysztof Hałasa <khalasa@piap.pl> # For IXP4xx Ethernet Link: https://lore.kernel.org/r/20220830201457.7984-3-wsa+renesas@sang-engineering.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-06-29sfc: Separate netdev probe/remove from PCI probe/removeJonathan Cooper1-1/+1
The netdev probe will be used when moving from vDPA to EF100 BAR config. The netdev remove will be used when moving from EF100 to vDPA BAR config. In the process, change several log messages to pci_ instead of netif_ to remove the "(unregistered net_device)" text. Signed-off-by: Jonathan Cooper <jonathan.s.cooper@amd.com> Co-developed-by: Martin Habets <habetsm.xilinx@gmail.com> Signed-off-by: Martin Habets <habetsm.xilinx@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-06-29sfc: Separate efx_nic memory from net_device memoryJonathan Cooper1-4/+16
As we have a lot of common code this applies to all NIC architectures. Signed-off-by: Jonathan Cooper <jonathan.s.cooper@amd.com> Co-developed-by: Martin Habets <habetsm.xilinx@gmail.com> Signed-off-by: Martin Habets <habetsm.xilinx@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-06-29sfc: Encapsulate access to netdev_priv()Jonathan Cooper1-10/+10
Once we separate struct efx_nic memory from net_device memory the existing usage will have to change. Apart from the new function efx_netdev_priv() accesses have been changed using: sed -i 's/netdev_priv/efx_netdev_priv/' Signed-off-by: Jonathan Cooper <jonathan.s.cooper@amd.com> Co-developed-by: Martin Habets <habetsm.xilinx@gmail.com> Signed-off-by: Martin Habets <habetsm.xilinx@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-06-29sfc: Change BUG_ON to WARN_ON and recovery code.Jonathan Cooper1-1/+2
Pre-emptively fix a checkpatch warning in a subsequent patch. Signed-off-by: Jonathan Cooper <jonathan.s.cooper@amd.com> Co-developed-by: Martin Habets <habetsm.xilinx@gmail.com> Signed-off-by: Martin Habets <habetsm.xilinx@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-06-29sfc: Remove netdev init from efx_init_structJonathan Cooper1-1/+2
Move functionality involving the struct net_device out of efx_init_struct so that we can initialise without a net dev for VDPA operation. Signed-off-by: Jonathan Cooper <jonathan.s.cooper@amd.com> Co-developed-by: Martin Habets <habetsm.xilinx@gmail.com> Signed-off-by: Martin Habets <habetsm.xilinx@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-06-29sfc: Split STATE_READY in to STATE_NET_DOWN and STATE_NET_UP.Jonathan Cooper1-16/+13
This patch splits the READY state in to NET_UP and NET_DOWN. This is to prepare for future work to delay resource allocation until interface up so that we can use resources more efficiently in SRIOV environments, and also to lay the ground work for an extra PROBED state where we don't create a network interface, for VDPA operation. Signed-off-by: Jonathan Cooper <jonathan.s.cooper@amd.com> Acked-by: Martin Habets <habetsm.xilinx@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-05-06net: make drivers set the TSO limit not the GSO limitJakub Kicinski1-1/+1
Drivers should call the TSO setting helper, GSO is controllable by user space. Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-05-04sfc: Disable Siena supportMartin Habets1-17/+0
Disable the build of Siena code until later in this patch series. Prevent sfc.ko from binding to Siena NICs. efx_init_sriov/efx_fini_sriov is only used for Siena. Remove calls to those. Signed-off-by: Martin Habets <habetsm.xilinx@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-12-29net: Don't include filter.h from net/sock.hJakub Kicinski1-0/+1
sock.h is pretty heavily used (5k objects rebuilt on x86 after it's touched). We can drop the include of filter.h from it and add a forward declaration of struct sk_filter instead. This decreases the number of rebuilt objects when bpf.h is touched from ~5k to ~1k. There's a lot of missing includes this was masking. Primarily in networking tho, this time. Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Marc Kleine-Budde <mkl@pengutronix.de> Acked-by: Florian Fainelli <f.fainelli@gmail.com> Acked-by: Nikolay Aleksandrov <nikolay@nvidia.com> Acked-by: Stefano Garzarella <sgarzare@redhat.com> Link: https://lore.kernel.org/bpf/20211229004913.513372-1-kuba@kernel.org
2021-11-22net: annotate accesses to dev->gso_max_segsEric Dumazet1-1/+1
dev->gso_max_segs is written under RTNL protection, or when the device is not yet visible, but is read locklessly. Add netif_set_gso_max_segs() helper. Add the READ_ONCE()/WRITE_ONCE() pairs, and use netif_set_gso_max_segs() where we can to better document what is going on. Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-10-02ethernet: use eth_hw_addr_set() instead of ether_addr_copy()Jakub Kicinski1-1/+1
Convert Ethernet from ether_addr_copy() to eth_hw_addr_set(): @@ expression dev, np; @@ - ether_addr_copy(dev->dev_addr, np) + eth_hw_addr_set(dev, np) Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-09-08Merge tag 'pci-v5.15-changes' of ↵Linus Torvalds1-58/+20
git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci Pull PCI updates from Bjorn Helgaas: "Enumeration: - Convert controller drivers to generic_handle_domain_irq() (Marc Zyngier) - Simplify VPD (Vital Product Data) access and search (Heiner Kallweit) - Update bnx2, bnx2x, bnxt, cxgb4, cxlflash, sfc, tg3 drivers to use simplified VPD interfaces (Heiner Kallweit) - Run Max Payload Size quirks before configuring MPS; work around ASMedia ASM1062 SATA MPS issue (Marek Behún) Resource management: - Refactor pci_ioremap_bar() and pci_ioremap_wc_bar() (Krzysztof Wilczyński) - Optimize pci_resource_len() to reduce kernel size (Zhen Lei) PCI device hotplug: - Fix a double unmap in ibmphp (Vishal Aslot) PCIe port driver: - Enable Bandwidth Notification only if port supports it (Stuart Hayes) Sysfs/proc/syscalls: - Add schedule point in proc_bus_pci_read() (Krzysztof Wilczyński) - Return ~0 data on pciconfig_read() CAP_SYS_ADMIN failure (Krzysztof Wilczyński) - Return "int" from pciconfig_read() syscall (Krzysztof Wilczyński) Virtualization: - Extend "pci=noats" to also turn on Translation Blocking to protect against some DMA attacks (Alex Williamson) - Add sysfs mechanism to control the type of reset used between device assignments to VMs (Amey Narkhede) - Add support for ACPI _RST reset method (Shanker Donthineni) - Add ACS quirks for Cavium multi-function devices (George Cherian) - Add ACS quirks for NXP LX2xx0 and LX2xx2 platforms (Wasim Khan) - Allow HiSilicon AMBA devices that appear as fake PCI devices to use PASID and SVA (Zhangfei Gao) Endpoint framework: - Add support for SR-IOV Endpoint devices (Kishon Vijay Abraham I) - Zero-initialize endpoint test tool parameters so we don't use random parameters (Shunyong Yang) APM X-Gene PCIe controller driver: - Remove redundant dev_err() call in xgene_msi_probe() (ErKun Yang) Broadcom iProc PCIe controller driver: - Don't fail devm_pci_alloc_host_bridge() on missing 'ranges' because it's optional on BCMA devices (Rob Herring) - Fix BCMA probe resource handling (Rob Herring) Cadence PCIe driver: - Work around J7200 Link training electrical issue by increasing delays in LTSSM (Nadeem Athani) Intel IXP4xx PCI controller driver: - Depend on ARCH_IXP4XX to avoid useless config questions (Geert Uytterhoeven) Intel Keembay PCIe controller driver: - Add Intel Keem Bay PCIe controller (Srikanth Thokala) Marvell Aardvark PCIe controller driver: - Work around config space completion handling issues (Evan Wang) - Increase timeout for config access completions (Pali Rohár) - Emulate CRS Software Visibility bit (Pali Rohár) - Configure resources from DT 'ranges' property to fix I/O space access (Pali Rohár) - Serialize INTx mask/unmask (Pali Rohár) MediaTek PCIe controller driver: - Add MT7629 support in DT (Chuanjia Liu) - Fix an MSI issue (Chuanjia Liu) - Get syscon regmap ("mediatek,generic-pciecfg"), IRQ number ("pci_irq"), PCI domain ("linux,pci-domain") from DT properties if present (Chuanjia Liu) Microsoft Hyper-V host bridge driver: - Add ARM64 support (Boqun Feng) - Support "Create Interrupt v3" message (Sunil Muthuswamy) NVIDIA Tegra PCIe controller driver: - Use seq_puts(), move err_msg from stack to static, fix OF node leak (Christophe JAILLET) NVIDIA Tegra194 PCIe driver: - Disable suspend when in Endpoint mode (Om Prakash Singh) - Fix MSI-X address programming error (Om Prakash Singh) - Disable interrupts during suspend to avoid spurious AER link down (Om Prakash Singh) Renesas R-Car PCIe controller driver: - Work around hardware issue that prevents Link L1->L0 transition (Marek Vasut) - Fix runtime PM refcount leak (Dinghao Liu) Rockchip DesignWare PCIe controller driver: - Add Rockchip RK356X host controller driver (Simon Xue) TI J721E PCIe driver: - Add support for J7200 and AM64 (Kishon Vijay Abraham I) Toshiba Visconti PCIe controller driver: - Add Toshiba Visconti PCIe host controller driver (Nobuhiro Iwamatsu) Xilinx NWL PCIe controller driver: - Enable PCIe reference clock via CCF (Hyun Kwon) Miscellaneous: - Convert sta2x11 from 'pci_' to 'dma_' API (Christophe JAILLET) - Fix pci_dev_str_match_path() alloc while atomic bug (used for kernel parameters that specify devices) (Dan Carpenter) - Remove pointless Precision Time Management warning when PTM is present but not enabled (Jakub Kicinski) - Remove surplus "break" statements (Krzysztof Wilczyński)" * tag 'pci-v5.15-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (132 commits) PCI: ibmphp: Fix double unmap of io_mem x86/PCI: sta2x11: switch from 'pci_' to 'dma_' API PCI/VPD: Use unaligned access helpers PCI/VPD: Clean up public VPD defines and inline functions cxgb4: Use pci_vpd_find_id_string() to find VPD ID string PCI/VPD: Add pci_vpd_find_id_string() PCI/VPD: Include post-processing in pci_vpd_find_tag() PCI/VPD: Stop exporting pci_vpd_find_info_keyword() PCI/VPD: Stop exporting pci_vpd_find_tag() PCI: Set dma-can-stall for HiSilicon chips PCI: rockchip-dwc: Add Rockchip RK356X host controller driver PCI: dwc: Remove surplus break statement after return PCI: artpec6: Remove local code block from switch statement PCI: artpec6: Remove surplus break statement after return MAINTAINERS: Add entries for Toshiba Visconti PCIe controller PCI: visconti: Add Toshiba Visconti PCIe host controller driver PCI/portdrv: Enable Bandwidth Notification only if port supports it PCI: Allow PASID on fake PCIe devices without TLP prefixes PCI: mediatek: Use PCI domain to handle ports detection PCI: mediatek: Add new method to get irq number ...
2021-08-20sfc: Search VPD with pci_vpd_find_ro_info_keyword()Heiner Kallweit1-51/+14
Use pci_vpd_find_ro_info_keyword() to search for keywords in VPD to simplify the code. Replace netif_err() with pci_err() because the netdevice isn't registered yet, which results in very ugly messages. Use kmemdup_nul() instead of open-coding it. Link: https://lore.kernel.org/r/bf5d4ba9-61a9-2bfe-19ec-75472732d74d@gmail.com Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2021-08-20sfc: Read VPD with pci_vpd_alloc()Heiner Kallweit1-15/+14
Use pci_vpd_alloc() to dynamically allocate a properly sized buffer and read the full VPD data into it. This avoids having to allocate a buffer on the stack, and we don't have to make any assumptions on VPD size and location of information in VPD. Link: https://lore.kernel.org/r/e58f1e40-c043-0266-9a0f-e5a7f3f6883c@gmail.com Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2021-07-27dev_ioctl: split out ndo_eth_ioctlArnd Bergmann1-1/+1
Most users of ndo_do_ioctl are ethernet drivers that implement the MII commands SIOCGMIIPHY/SIOCGMIIREG/SIOCSMIIREG, or hardware timestamping with SIOCSHWTSTAMP/SIOCGHWTSTAMP. Separate these from the few drivers that use ndo_do_ioctl to implement SIOCBOND, SIOCBR and SIOCWANDEV commands. This is a purely cosmetic change intended to help readers find their way through the implementation. Cc: Doug Ledford <dledford@redhat.com> Cc: Jason Gunthorpe <jgg@ziepe.ca> Cc: Jay Vosburgh <j.vosburgh@gmail.com> Cc: Veaceslav Falico <vfalico@gmail.com> Cc: Andy Gospodarek <andy@greyhouse.net> Cc: Andrew Lunn <andrew@lunn.ch> Cc: Vivien Didelot <vivien.didelot@gmail.com> Cc: Florian Fainelli <f.fainelli@gmail.com> Cc: Vladimir Oltean <olteanv@gmail.com> Cc: Leon Romanovsky <leon@kernel.org> Cc: linux-rdma@vger.kernel.org Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Jason Gunthorpe <jgg@nvidia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-05-24sfc: use DEVICE_ATTR_*() macroYueHaibing1-3/+3
Use DEVICE_ATTR_*() helper instead of plain DEVICE_ATTR, which makes the code a bit shorter and easier to read. Signed-off-by: YueHaibing <yuehaibing@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-05-15sfc: don't use netif_info et al before net_device is registeredHeiner Kallweit1-8/+5
Using netif_info() before the net_device is registered results in ugly messages like the following: sfc 0000:01:00.1 (unnamed net_device) (uninitialized): Solarflare NIC detected Therefore use pci_info() et al until net_device is registered. Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-04-30PCI/VPD: Remove pci_vpd_find_tag() 'offset' argumentHeiner Kallweit1-1/+1
All callers pass 0 as offset. Therefore remove the parameter and use a fixed offset 0 in pci_vpd_find_tag(). Link: https://lore.kernel.org/r/f62e6e19-5423-2ead-b2bd-62844b23ef8f@gmail.com Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2021-01-07net: remove ndo_udp_tunnel_* callbacksJakub Kicinski1-2/+0
All UDP tunnel port management is now routed via udp_tunnel_nic infra directly. Remove the old callbacks. Reviewed-by: Alexander Duyck <alexanderduyck@fb.com> Reviewed-by: Jacob Keller <jacob.e.keller@intel.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-09-12sfc: advertise encapsulated offloads on EF10Edward Cree1-0/+1
Necessitates an .ndo_features_check, as the EF10 datapath has several limitations on what it can handle. Signed-off-by: Edward Cree <ecree@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-08sfc: remove EFX_DRIVER_VERSIONEdward Cree1-2/+1
Per-module versions for in-tree drivers are deprecated. Signed-off-by: Edward Cree <ecree@solarflare.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-09-08sfc: remove phy_op indirectionEdward Cree1-12/+5
Originally there were several implementations of PHY operations for the several different PHYs used on Falcon boards. But Falcon is now in a separate driver, and all sfc NICs since then have had MCDI-managed PHYs. Thus, there is no need to indirect through function pointers in efx->phy_op; we can simply call the efx_mcdi_phy_* functions directly. This also hooks up these functions for EF100, which was previously using the dummy_phy_ops. Signed-off-by: Edward Cree <ecree@solarflare.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-08-04Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-nextDavid S. Miller1-5/+0
Daniel Borkmann says: ==================== pull-request: bpf-next 2020-08-04 The following pull-request contains BPF updates for your *net-next* tree. We've added 73 non-merge commits during the last 9 day(s) which contain a total of 135 files changed, 4603 insertions(+), 1013 deletions(-). The main changes are: 1) Implement bpf_link support for XDP. Also add LINK_DETACH operation for the BPF syscall allowing processes with BPF link FD to force-detach, from Andrii Nakryiko. 2) Add BPF iterator for map elements and to iterate all BPF programs for efficient in-kernel inspection, from Yonghong Song and Alexei Starovoitov. 3) Separate bpf_get_{stack,stackid}() helpers for perf events in BPF to avoid unwinder errors, from Song Liu. 4) Allow cgroup local storage map to be shared between programs on the same cgroup. Also extend BPF selftests with coverage, from YiFei Zhu. 5) Add BPF exception tables to ARM64 JIT in order to be able to JIT BPF_PROBE_MEM load instructions, from Jean-Philippe Brucker. 6) Follow-up fixes on BPF socket lookup in combination with reuseport group handling. Also add related BPF selftests, from Jakub Sitnicki. 7) Allow to use socket storage in BPF_PROG_TYPE_CGROUP_SOCK-typed programs for socket create/release as well as bind functions, from Stanislav Fomichev. 8) Fix an info leak in xsk_getsockopt() when retrieving XDP stats via old struct xdp_statistics, from Peilin Ye. 9) Fix PT_REGS_RC{,_CORE}() macros in libbpf for MIPS arch, from Jerry Crunchtime. 10) Extend BPF kernel test infra with skb->family and skb->{local,remote}_ip{4,6} fields and allow user space to specify skb->dev via ifindex, from Dmitry Yakunin. 11) Fix a bpftool segfault due to missing program type name and make it more robust to prevent them in future gaps, from Quentin Monnet. 12) Consolidate cgroup helper functions across selftests and fix a v6 localhost resolver issue, from John Fastabend. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-27sfc: skeleton EF100 PF driverEdward Cree1-0/+8
No TX or RX path, no MCDI, not even an ifup/down handler. Besides stubs, the bulk of the patch deals with reading the Xilinx extended PCIe capability, which tells us where to find our BAR. Though in the same module, EF100 has its own struct pci_driver, which is named sfc_ef100. A small number of additional nic_type methods are added; those in the TX (tx_enqueue) and RX (rx_packet) paths are called through indirect call wrappers to minimise the performance impact. Signed-off-by: Edward Cree <ecree@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-26bpf, xdp: Remove XDP_QUERY_PROG and XDP_QUERY_PROG_HW XDP commandsAndrii Nakryiko1-5/+0
Now that BPF program/link management is centralized in generic net_device code, kernel code never queries program id from drivers, so XDP_QUERY_PROG/XDP_QUERY_PROG_HW commands are unnecessary. This patch removes all the implementations of those commands in kernel, along the xdp_attachment_query(). This patch was compile-tested on allyesconfig. Signed-off-by: Andrii Nakryiko <andriin@fb.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Link: https://lore.kernel.org/bpf/20200722064603.3350758-10-andriin@fb.com
2020-07-23sfc: convert to new udp_tunnel infrastructureJakub Kicinski1-70/+2
Check MC_CMD_DRV_ATTACH_EXT_OUT_FLAG_TRUSTED, before setting the info, which will hopefully protect us from -EPERM errors the previous code was gracefully ignoring. Ed reports this is not the 100% correct bit, but it's the best approximation we have. Shared code reports the port information back to user space, so we really want to know what was added and what failed. Ignoring -EPERM is not an option. The driver does not call udp_tunnel_get_rx_info(), so its own management of table state is not really all that problematic, we can leave it be. This allows the driver to continue with its copious table syncing, and matching the ports to TX frames, which it will reportedly do one day. Leave the feature checking in the callbacks, as the device may remove the capabilities on reset. Inline the loop from __efx_ef10_udp_tnl_lookup_port() into efx_ef10_udp_tnl_has_port(), since it's the only caller now. With new infra this driver gains port replace - when space frees up in a full table a new port will be selected for offload. Plus efx will no longer sleep in an atomic context. v2: - amend the commit message about TRUSTED not being 100% - add TUNNEL_ENCAP_UDP_PORT_ENTRY_INVALID to mark unsed entries Signed-off-by: Jakub Kicinski <kuba@kernel.org> Acked-By: Edward Cree <ecree@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-03sfc: commonise netif_set_real_num[tr]x_queues callsEdward Cree1-3/+0
While we're at it, also check them for failure. Signed-off-by: Edward Cree <ecree@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-03sfc: move modparam 'rss_cpus' out of common channel codeEdward Cree1-0/+3
Instead of exposing this old module parameter on the new driver (thus having to keep it forever after for compatibility), let's confine it to the old one; if we find later that we need the feature, we ought to support it properly, with ethtool set-channels. Signed-off-by: Edward Cree <ecree@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-03sfc: move modparam 'interrupt_mode' out of common channel codeEdward Cree1-0/+4
EF100 only supports MSI-X, so there's no need for the new driver to expose this old module parameter. Since it's now visible to the linker, we have to rename it internally to efx_interrupt_mode to avoid symbol collisions in non-modular builds. Signed-off-by: Edward Cree <ecree@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-03sfc: support setting MTU even if not privileged to configure MAC fullyEdward Cree1-4/+0
Unprivileged functions (such as VFs) may set their MTU by use of the 'control' field of MC_CMD_SET_MAC_EXT, as used in efx_mcdi_set_mtu(). If calling efx_ef10_mac_reconfigure() from efx_change_mtu(), and the NIC supports the above (SET_MAC_ENHANCED capability), use it rather than efx_mcdi_set_mac(). Signed-off-by: Edward Cree <ecree@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-30sfc: commonise efx->[rt]xq_entries initialisationEdward Cree1-1/+0
Signed-off-by: Edward Cree <ecree@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-30sfc: commonise miscellaneous efx functionsEdward Cree1-103/+0
Various left-over bits and pieces from efx.c that are needed by ef100. Signed-off-by: Edward Cree <ecree@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-30sfc: commonise PCI error handlersEdward Cree1-91/+0
EF100 will use the same mechanisms for PCI error recovery. Signed-off-by: Edward Cree <ecree@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-30sfc: track which BAR is mappedEdward Cree1-2/+2
EF100 needs to map multiple BARs (sequentially, not concurrently) in order to read the Function Control Window during probe. Signed-off-by: Edward Cree <ecree@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-30sfc: commonise FC advertisingEdward Cree1-24/+0
Signed-off-by: Edward Cree <ecree@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-02-20sfc: remove unused variable 'efx_default_channel_type'YueHaibing1-1/+0
drivers/net/ethernet/sfc/efx.c:116:38: warning: efx_default_channel_type defined but not used [-Wunused-const-variable=] commit 83975485077d ("sfc: move channel alloc/removal code") left behind this, remove it. Reported-by: Hulk Robot <hulkci@huawei.com> Fixes: 83975485077d ("sfc: move channel alloc/removal code") Signed-off-by: YueHaibing <yuehaibing@huawei.com> Acked-by: Martin Habets <mhabets@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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