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* net: Add a WWAN subsystemLoic Poulain2021-04-171-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This change introduces initial support for a WWAN framework. Given the complexity and heterogeneity of existing WWAN hardwares and interfaces, there is no strict definition of what a WWAN device is and how it should be represented. It's often a collection of multiple devices that perform the global WWAN feature (netdev, tty, chardev, etc). One usual way to expose modem controls and configuration is via high level protocols such as the well known AT command protocol, MBIM or QMI. The USB modems started to expose them as character devices, and user daemons such as ModemManager learnt to use them. This initial version adds the concept of WWAN port, which is a logical pipe to a modem control protocol. The protocols are rawly exposed to user via character device, allowing straigthforward support in existing tools (ModemManager, ofono...). The WWAN core takes care of the generic part, including character device management, and relies on port driver operations to receive/submit protocol data. Since the different devices exposing protocols for a same WWAN hardware do not necessarily know about each others (e.g. two different USB interfaces, PCI/MHI channel devices...) and can be created/removed in different orders, the WWAN core ensures that all WAN ports contributing to the 'whole' WWAN feature are grouped under the same virtual WWAN device, relying on the provided parent device (e.g. mhi controller, USB device). It's a 'trick' I copied from Johannes's earlier WWAN subsystem proposal. This initial version is purposely minimalist, it's essentially moving the generic part of the previously proposed mhi_wwan_ctrl driver inside a common WWAN framework, but the implementation is open and flexible enough to allow extension for further drivers. Signed-off-by: Loic Poulain <loic.poulain@linaro.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* netdevsim: Add dummy psample implementationIdo Schimmel2021-03-141-0/+1
| | | | | | | | | | | | | | | Allow netdevsim to report "sampled" packets to the psample module by periodically generating packets from a work queue. The behavior can be enabled / disabled (default) and the various meta data attributes can be controlled via debugfs knobs. This implementation enables both testing of the psample module with all the optional attributes as well as development of user space applications on top of psample such as hsflowd and a Wireshark dissector for psample generic netlink packets. Signed-off-by: Ido Schimmel <idosch@nvidia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* crypto: mips/poly1305 - enable for all MIPS processorsMaciej W. Rozycki2021-03-081-1/+1
| | | | | | | | | | | | | | The MIPS Poly1305 implementation is generic MIPS code written such as to support down to the original MIPS I and MIPS III ISA for the 32-bit and 64-bit variant respectively. Lift the current limitation then to enable code for MIPSr1 ISA or newer processors only and have it available for all MIPS processors. Signed-off-by: Maciej W. Rozycki <macro@orcam.me.uk> Fixes: a11d055e7a64 ("crypto: mips/poly1305 - incorporate OpenSSL/CRYPTOGAMS optimized implementation") Cc: stable@vger.kernel.org # v5.5+ Acked-by: Jason A. Donenfeld <Jason@zx2c4.com> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
* Merge tag 'net-5.12-rc1' of ↵Linus Torvalds2021-02-251-1/+1
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net Pull networking fixes from Jakub Kicinski: "Rather small batch this time. Current release - regressions: - bcm63xx_enet: fix sporadic kernel panic due to queue length mis-accounting Current release - new code bugs: - bcm4908_enet: fix RX path possible mem leak - bcm4908_enet: fix NAPI poll returned value - stmmac: fix missing spin_lock_init in visconti_eth_dwmac_probe() - sched: cls_flower: validate ct_state for invalid and reply flags Previous releases - regressions: - net: introduce CAN specific pointer in the struct net_device to prevent mis-interpreting memory - phy: micrel: set soft_reset callback to genphy_soft_reset for KSZ8081 - psample: fix netlink skb length with tunnel info Previous releases - always broken: - icmp: pass zeroed opts from icmp{,v6}_ndo_send before sending - wireguard: device: do not generate ICMP for non-IP packets - mptcp: provide subflow aware release function to avoid a mem leak - hsr: add support for EntryForgetTime - r8169: fix jumbo packet handling on RTL8168e - octeontx2-af: fix an off by one in rvu_dbg_qsize_write() - i40e: fix flow for IPv6 next header (extension header) - phy: icplus: call phy_restore_page() when phy_select_page() fails - dpaa_eth: fix the access method for the dpaa_napi_portal" * tag 'net-5.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (55 commits) r8169: fix jumbo packet handling on RTL8168e net: phy: micrel: set soft_reset callback to genphy_soft_reset for KSZ8081 net: psample: Fix netlink skb length with tunnel info net: broadcom: bcm4908_enet: fix NAPI poll returned value net: broadcom: bcm4908_enet: fix RX path possible mem leak net: hsr: add support for EntryForgetTime net: dsa: sja1105: Remove unneeded cast in sja1105_crc32() ibmvnic: fix a race between open and reset net: stmmac: Fix missing spin_lock_init in visconti_eth_dwmac_probe() net: introduce CAN specific pointer in the struct net_device net: usb: qmi_wwan: support ZTE P685M modem wireguard: kconfig: use arm chacha even with no neon wireguard: queueing: get rid of per-peer ring buffers wireguard: device: do not generate ICMP for non-IP packets wireguard: peer: put frequently used members above cache lines wireguard: selftests: test multiple parallel streams wireguard: socket: remove bogus __be32 annotation wireguard: avoid double unlikely() notation when using IS_ERR() net: qrtr: Fix memory leak in qrtr_tun_open vxlan: move debug check after netdev unregister ...
| * wireguard: kconfig: use arm chacha even with no neonJason A. Donenfeld2021-02-241-1/+1
| | | | | | | | | | | | | | | | | | | | The condition here was incorrect: a non-neon fallback implementation is available on arm32 when NEON is not supported. Reported-by: Ilya Lipnitskiy <ilya.lipnitskiy@gmail.com> Fixes: e7096c131e51 ("net: WireGuard secure network tunnel") Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
* | Merge branch 'linus' of ↵Linus Torvalds2021-02-221-0/+1
|\ \ | |/ |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 Pull crypto update from Herbert Xu: "API: - Restrict crypto_cipher to internal API users only. Algorithms: - Add x86 aesni acceleration for cts. - Improve x86 aesni acceleration for xts. - Remove x86 acceleration of some uncommon algorithms. - Remove RIPE-MD, Tiger and Salsa20. - Remove tnepres. - Add ARM acceleration for BLAKE2s and BLAKE2b. Drivers: - Add Keem Bay OCS HCU driver. - Add Marvell OcteonTX2 CPT PF driver. - Remove PicoXcell driver. - Remove mediatek driver" * 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (154 commits) hwrng: timeriomem - Use device-managed registration API crypto: hisilicon/qm - fix printing format issue crypto: hisilicon/qm - do not reset hardware when CE happens crypto: hisilicon/qm - update irqflag crypto: hisilicon/qm - fix the value of 'QM_SQC_VFT_BASE_MASK_V2' crypto: hisilicon/qm - fix request missing error crypto: hisilicon/qm - removing driver after reset crypto: octeontx2 - fix -Wpointer-bool-conversion warning crypto: hisilicon/hpre - enable Elliptic curve cryptography crypto: hisilicon - PASID fixed on Kunpeng 930 crypto: hisilicon/qm - fix use of 'dma_map_single' crypto: hisilicon/hpre - tiny fix crypto: hisilicon/hpre - adapt the number of clusters crypto: cpt - remove casting dma_alloc_coherent crypto: keembay-ocs-aes - Fix 'q' assignment during CCM B0 generation crypto: xor - Fix typo of optimization hwrng: optee - Use device-managed registration API crypto: arm64/crc-t10dif - move NEON yield to C code crypto: arm64/aes-ce-mac - simplify NEON yield crypto: arm64/aes-neonbs - remove NEON yield calls ...
| * wireguard: Kconfig: select CRYPTO_BLAKE2S_ARMEric Biggers2021-01-021-0/+1
| | | | | | | | | | | | | | | | | | | | When available, select the new implementation of BLAKE2s for 32-bit ARM. This is faster than the generic C implementation. Reviewed-by: Jason A. Donenfeld <Jason@zx2c4.com> Acked-by: Ard Biesheuvel <ardb@kernel.org> Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* | bonding: add TLS dependencyArnd Bergmann2021-01-271-0/+1
|/ | | | | | | | | | | | | | When TLS is a module, the built-in bonding driver may cause a link error: x86_64-linux-ld: drivers/net/bonding/bond_main.o: in function `bond_start_xmit': bond_main.c:(.text+0xc451): undefined reference to `tls_validate_xmit_skb' Add a dependency to avoid the problem. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Link: https://lore.kernel.org/r/20210125113209.2248522-1-arnd@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
* net: fix spelling mistake "wil" -> "will" in KconfigColin Ian King2020-12-061-1/+1
| | | | | | | | There is a spelling mistake in the Kconfig help text. Fix it. Signed-off-by: Colin Ian King <colin.king@canonical.com> Link: https://lore.kernel.org/r/20201204194549.1153063-1-colin.king@canonical.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
* net: Add mhi-net driverLoic Poulain2020-11-061-0/+7
| | | | | | | | | | | | | | | This patch adds a new network driver implementing MHI transport for network packets. Packets can be in any format, though QMAP (rmnet) is the usual protocol (flow control + PDN mux). It support two MHI devices, IP_HW0 which is, the path to the IPA (IP accelerator) on qcom modem, And IP_SW0 which is the software driven IP path (to modem CPU). Signed-off-by: Loic Poulain <loic.poulain@linaro.org> Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Link: https://lore.kernel.org/r/1604424234-24446-2-git-send-email-loic.poulain@linaro.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
* wimax: move out to stagingArnd Bergmann2020-10-291-2/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There are no known users of this driver as of October 2020, and it will be removed unless someone turns out to still need it in future releases. According to https://en.wikipedia.org/wiki/List_of_WiMAX_networks, there have been many public wimax networks, but it appears that many of these have migrated to LTE or discontinued their service altogether. As most PCs and phones lack WiMAX hardware support, the remaining networks tend to use standalone routers. These almost certainly run Linux, but not a modern kernel or the mainline wimax driver stack. NetworkManager appears to have dropped userspace support in 2015 https://bugzilla.gnome.org/show_bug.cgi?id=747846, the www.linuxwimax.org site had already shut down earlier. WiMax is apparently still being deployed on airport campus networks ("AeroMACS"), but in a frequency band that was not supported by the old Intel 2400m (used in Sandy Bridge laptops and earlier), which is the only driver using the kernel's wimax stack. Move all files into drivers/staging/wimax, including the uapi header files and documentation, to make it easier to remove it when it gets to that. Only minimal changes are made to the source files, in order to make it possible to port patches across the move. Also remove the MAINTAINERS entry that refers to a broken mailing list and website. Acked-by: Jakub Kicinski <kuba@kernel.org> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Acked-By: Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com> Acked-by: Johannes Berg <johannes@sipsolutions.net> Suggested-by: Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
* net: mdio: Move MDIO drivers into a new subdirectoryAndrew Lunn2020-08-271-0/+2
| | | | | | | | | | | | | | | | | Move all the MDIO drivers and multiplexers into drivers/net/mdio. The mdio core is however left in the phy directory, due to mutual dependencies between the MDIO core and the PHY core. Take this opportunity to sort the Kconfig based on the menuconfig strings, and move the multiplexers to the end with a separating comment. v2: Fix typo in commit message Acked-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: pcs: Move XPCS into new PCS subdirectoryAndrew Lunn2020-08-271-0/+2
| | | | | | | | | | | | | | | | | | | | | Create drivers/net/pcs and move the Synopsys DesignWare XPCS into the new directory. Move the header file into a subdirectory include/linux/pcs Start a naming convention of all PCS files use the prefix pcs-, and rename the XPCS files to fit. v2: Add include/linux/pcs v4: Fix include path in stmmac. Remove PCS_DEVICES to avoid new prompts Cc: Jose Abreu <Jose.Abreu@synopsys.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
* xen networking: add basic XDP support for xen-netfrontDenis Kirjanov2020-07-021-0/+1
| | | | | | | | | | | | | | | | | | The patch adds a basic XDP processing to xen-netfront driver. We ran an XDP program for an RX response received from netback driver. Also we request xen-netback to adjust data offset for bpf_xdp_adjust_head() header space for custom headers. synchronization between frontend and backend parts is done by using xenbus state switching: Reconfiguring -> Reconfigured- > Connected UDP packets drop rate using xdp program is around 310 kpps using ./pktgen_sample04_many_flows.sh and 160 kpps without the patch. Signed-off-by: Denis Kirjanov <kda@linux-powerpc.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* docs: networking: reorganize driver documentation againJakub Kicinski2020-06-271-1/+1
| | | | | | | | | | | | | | | | Organize driver documentation by device type. Most documents have fairly verbose yet uninformative names, so let users first select a well defined device type, and then search for a particular driver. While at it rename the section from Vendor drivers to Hardware drivers. This seems more accurate, besides people sometimes refer to out-of-tree drivers as vendor drivers. Signed-off-by: Jakub Kicinski <kuba@kernel.org> Acked-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Acked-by: Shannon Nelson <snelson@pensando.io> Signed-off-by: David S. Miller <davem@davemloft.net>
* treewide: replace '---help---' in Kconfig files with 'help'Masahiro Yamada2020-06-131-23/+23
| | | | | | | | | | | | | | | | | | | | | | | | | | Since commit 84af7a6194e4 ("checkpatch: kconfig: prefer 'help' over '---help---'"), the number of '---help---' has been gradually decreasing, but there are still more than 2400 instances. This commit finishes the conversion. While I touched the lines, I also fixed the indentation. There are a variety of indentation styles found. a) 4 spaces + '---help---' b) 7 spaces + '---help---' c) 8 spaces + '---help---' d) 1 space + 1 tab + '---help---' e) 1 tab + '---help---' (correct indentation) f) 1 tab + 1 space + '---help---' g) 1 tab + 2 spaces + '---help---' In order to convert all of them to 1 tab + 'help', I ran the following commend: $ find . -name 'Kconfig*' | xargs sed -i 's/^[[:space:]]*---help---/\thelp/' Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
* docs: networking: device drivers: convert sb1000.txt to ReSTMauro Carvalho Chehab2020-05-011-1/+1
| | | | | | | | | | | | | - add SPDX header; - add a document title; - adjust titles and chapters, adding proper markups; - mark code blocks and literals as such; - mark lists as such; - adjust identation, whitespaces and blank lines where needed; - add to networking/index.rst. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* docs: networking: convert tuntap.txt to ReSTMauro Carvalho Chehab2020-05-011-1/+1
| | | | | | | | | | | | - add SPDX header; - use copyright symbol; - adjust titles and chapters, adding proper markups; - mark code blocks and literals as such; - adjust identation, whitespaces and blank lines where needed; - add to networking/index.rst. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* docs: networking: convert netconsole.txt to ReSTMauro Carvalho Chehab2020-04-301-2/+2
| | | | | | | | | | | | | - add SPDX header; - add a document title; - mark code blocks and literals as such; - mark tables as such; - add notes markups; - adjust identation, whitespaces and blank lines; - add to networking/index.rst. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* docs: networking: convert eql.txt to ReSTMauro Carvalho Chehab2020-04-281-1/+1
| | | | | | | | | | | | | - add SPDX header; - add a document title; - adjust titles and chapters, adding proper markups; - mark code blocks and literals as such; - mark tables as such; - adjust identation, whitespaces and blank lines; - add to networking/index.rst. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* docs: networking: convert bonding.txt to ReSTMauro Carvalho Chehab2020-04-281-1/+1
| | | | | | | | | | | | | | - add SPDX header; - adjust titles and chapters, adding proper markups; - comment out text-only TOC from html/pdf output; - mark code blocks and literals as such; - mark tables as such; - add notes markups; - adjust identation, whitespaces and blank lines; - add to networking/index.rst. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netDavid S. Miller2020-03-261-0/+1
|\ | | | | | | | | | | | | | | | | | | | | | | | | Overlapping header include additions in macsec.c A bug fix in 'net' overlapping with the removal of 'version' string in ena_netdev.c Overlapping test additions in selftests Makefile Overlapping PCI ID table adjustments in iwlwifi driver. Signed-off-by: David S. Miller <davem@davemloft.net>
| * net: Fix CONFIG_NET_CLS_ACT=n and CONFIG_NFT_FWD_NETDEV={y, m} buildPablo Neira Ayuso2020-03-251-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | net/netfilter/nft_fwd_netdev.c: In function ‘nft_fwd_netdev_eval’: net/netfilter/nft_fwd_netdev.c:32:10: error: ‘struct sk_buff’ has no member named ‘tc_redirected’ pkt->skb->tc_redirected = 1; ^~ net/netfilter/nft_fwd_netdev.c:33:10: error: ‘struct sk_buff’ has no member named ‘tc_from_ingress’ pkt->skb->tc_from_ingress = 1; ^~ To avoid a direct dependency with tc actions from netfilter, wrap the redirect bits around CONFIG_NET_REDIRECT and move helpers to include/linux/skbuff.h. Turn on this toggle from the ifb driver, the only existing client of these bits in the tree. This patch adds skb_set_redirected() that sets on the redirected bit on the skbuff, it specifies if the packet was redirect from ingress and resets the timestamp (timestamp reset was originally missing in the netfilter bugfix). Fixes: bcfabee1afd99484 ("netfilter: nft_fwd_netdev: allow to redirect to ifb via ingress") Reported-by: noreply@ellerman.id.au Reported-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* | soc: qcom: ipa: support build of IPA codeAlex Elder2020-03-091-0/+2
| | | | | | | | | | | | | | Add build and Kconfig support for the Qualcomm IPA driver. Signed-off-by: Alex Elder <elder@linaro.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: UDP tunnel encapsulation module for tunnelling different protocols like ↵Martin Varghese2020-02-241-0/+13
|/ | | | | | | | | | | | MPLS, IP, NSH etc. The Bareudp tunnel module provides a generic L3 encapsulation tunnelling module for tunnelling different protocols like MPLS, IP,NSH etc inside a UDP tunnel. Signed-off-by: Martin Varghese <martin.varghese@nokia.com> Acked-by: Willem de Bruijn <willemb@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* Merge tag 'usb-5.6-rc1' of ↵Linus Torvalds2020-01-291-5/+5
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb Pull USB/Thunderbolt/PHY driver updates from Greg KH: "Here is the big USB and Thunderbolt and PHY driver updates for 5.6-rc1. With the advent of USB4, "Thunderbolt" has really become USB4, so the renaming of the Kconfig option and starting to share subsystem code has begun, hence both subsystems coming in through the same tree here. PHY driver updates also touched USB drivers, so that is coming in through here as well. Major stuff included in here are: - USB 4 initial support added (i.e. Thunderbolt) - musb driver updates - USB gadget driver updates - PHY driver updates - USB PHY driver updates - lots of USB serial stuff fixed up - USB typec updates - USB-IP fixes - lots of other smaller USB driver updates All of these have been in linux-next for a while now (the usb-serial tree is already tested in linux-next on its own before merged into here), with no reported issues" [ Removed an incorrect compile test enablement for PHY_EXYNOS5250_SATA that causes configuration warnings - Linus ] * tag 'usb-5.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (207 commits) Doc: ABI: add usb charger uevent usb: phy: show USB charger type for user usb: cdns3: fix spelling mistake and rework grammar in text usb: phy: phy-gpio-vbus-usb: Convert to GPIO descriptors USB: serial: cyberjack: fix spelling mistake "To" -> "Too" USB: serial: ir-usb: simplify endpoint check USB: serial: ir-usb: make set_termios synchronous USB: serial: ir-usb: fix IrLAP framing USB: serial: ir-usb: fix link-speed handling USB: serial: ir-usb: add missing endpoint sanity check usb: typec: fusb302: fix "op-sink-microwatt" default that was in mW usb: typec: wcove: fix "op-sink-microwatt" default that was in mW usb: dwc3: pci: add ID for the Intel Comet Lake -V variant usb: typec: tcpci: mask event interrupts when remove driver usb: host: xhci-tegra: set MODULE_FIRMWARE for tegra186 usb: chipidea: add inline for ci_hdrc_host_driver_init if host is not defined usb: chipidea: handle single role for usb role class usb: musb: fix spelling mistake: "periperal" -> "peripheral" phy: ti: j721e-wiz: Fix build error without CONFIG_OF_ADDRESS USB: usbfs: Always unlink URBs in reverse order ...
| * thunderbolt: Update Kconfig entries to USB4Mika Westerberg2019-12-181-5/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Since the driver now supports USB4 which is the standard going forward, update the Kconfig entry to mention this and rename the entry from CONFIG_THUNDERBOLT to CONFIG_USB4 instead to help people to find the correct option if they want to enable USB4. Also do the same for Thunderbolt network driver. Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com> Cc: David S. Miller <davem@davemloft.net> Link: https://lore.kernel.org/r/20191217123345.31850-6-mika.westerberg@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | drivers/net: netdevsim depends on INETHongbo Yao2020-01-171-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If CONFIG_INET is not set and CONFIG_NETDEVSIM=y. Building drivers/net/netdevsim/fib.o will get the following error: drivers/net/netdevsim/fib.o: In function `nsim_fib4_rt_hw_flags_set': fib.c:(.text+0x12b): undefined reference to `fib_alias_hw_flags_set' drivers/net/netdevsim/fib.o: In function `nsim_fib4_rt_destroy': fib.c:(.text+0xb11): undefined reference to `free_fib_info' Correct the Kconfig for netdevsim. Reported-by: Hulk Robot <hulkci@huawei.com> Fixes: 48bb9eb47b270 ("netdevsim: fib: Add dummy implementation for FIB offload") Signed-off-by: Hongbo Yao <yaohongbo@huawei.com> Acked-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* | netdevsim: fib: Add dummy implementation for FIB offloadIdo Schimmel2020-01-151-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Implement dummy IPv4 and IPv6 FIB "offload" in the driver by storing currently "programmed" routes in a hash table. Each route in the hash table is marked with "trap" indication. The indication is cleared when the route is replaced or when the netdevsim instance is deleted. This will later allow us to test the route offload API on top of netdevsim. v2: * Convert to new fib_alias_hw_flags_set() interface Signed-off-by: Ido Schimmel <idosch@mellanox.com> Reviewed-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | wireguard: Kconfig: select parent dependency for cryptoJason A. Donenfeld2019-12-171-0/+2
| | | | | | | | | | | | | | | | | | | | This fixes the crypto selection submenu depenencies. Otherwise, we'd wind up issuing warnings in which certain dependencies we also select couldn't be satisfied. This condition was triggered by the addition of the test suite autobuilder in the previous commit. Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: WireGuard secure network tunnelJason A. Donenfeld2019-12-091-0/+41
|/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | WireGuard is a layer 3 secure networking tunnel made specifically for the kernel, that aims to be much simpler and easier to audit than IPsec. Extensive documentation and description of the protocol and considerations, along with formal proofs of the cryptography, are available at: * https://www.wireguard.com/ * https://www.wireguard.com/papers/wireguard.pdf This commit implements WireGuard as a simple network device driver, accessible in the usual RTNL way used by virtual network drivers. It makes use of the udp_tunnel APIs, GRO, GSO, NAPI, and the usual set of networking subsystem APIs. It has a somewhat novel multicore queueing system designed for maximum throughput and minimal latency of encryption operations, but it is implemented modestly using workqueues and NAPI. Configuration is done via generic Netlink, and following a review from the Netlink maintainer a year ago, several high profile userspace tools have already implemented the API. This commit also comes with several different tests, both in-kernel tests and out-of-kernel tests based on network namespaces, taking profit of the fact that sockets used by WireGuard intentionally stay in the namespace the WireGuard interface was originally created, exactly like the semantics of userspace tun devices. See wireguard.com/netns/ for pictures and examples. The source code is fairly short, but rather than combining everything into a single file, WireGuard is developed as cleanly separable files, making auditing and comprehension easier. Things are laid out as follows: * noise.[ch], cookie.[ch], messages.h: These implement the bulk of the cryptographic aspects of the protocol, and are mostly data-only in nature, taking in buffers of bytes and spitting out buffers of bytes. They also handle reference counting for their various shared pieces of data, like keys and key lists. * ratelimiter.[ch]: Used as an integral part of cookie.[ch] for ratelimiting certain types of cryptographic operations in accordance with particular WireGuard semantics. * allowedips.[ch], peerlookup.[ch]: The main lookup structures of WireGuard, the former being trie-like with particular semantics, an integral part of the design of the protocol, and the latter just being nice helper functions around the various hashtables we use. * device.[ch]: Implementation of functions for the netdevice and for rtnl, responsible for maintaining the life of a given interface and wiring it up to the rest of WireGuard. * peer.[ch]: Each interface has a list of peers, with helper functions available here for creation, destruction, and reference counting. * socket.[ch]: Implementation of functions related to udp_socket and the general set of kernel socket APIs, for sending and receiving ciphertext UDP packets, and taking care of WireGuard-specific sticky socket routing semantics for the automatic roaming. * netlink.[ch]: Userspace API entry point for configuring WireGuard peers and devices. The API has been implemented by several userspace tools and network management utility, and the WireGuard project distributes the basic wg(8) tool. * queueing.[ch]: Shared function on the rx and tx path for handling the various queues used in the multicore algorithms. * send.c: Handles encrypting outgoing packets in parallel on multiple cores, before sending them in order on a single core, via workqueues and ring buffers. Also handles sending handshake and cookie messages as part of the protocol, in parallel. * receive.c: Handles decrypting incoming packets in parallel on multiple cores, before passing them off in order to be ingested via the rest of the networking subsystem with GRO via the typical NAPI poll function. Also handles receiving handshake and cookie messages as part of the protocol, in parallel. * timers.[ch]: Uses the timer wheel to implement protocol particular event timeouts, and gives a set of very simple event-driven entry point functions for callers. * main.c, version.h: Initialization and deinitialization of the module. * selftest/*.h: Runtime unit tests for some of the most security sensitive functions. * tools/testing/selftests/wireguard/netns.sh: Aforementioned testing script using network namespaces. This commit aims to be as self-contained as possible, implementing WireGuard as a standalone module not needing much special handling or coordination from the network subsystem. I expect for future optimizations to the network stack to positively improve WireGuard, and vice-versa, but for the time being, this exists as intentionally standalone. We introduce a menu option for CONFIG_WIREGUARD, as well as providing a verbose debug log and self-tests via CONFIG_WIREGUARD_DEBUG. Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com> Cc: David Miller <davem@davemloft.net> Cc: Greg KH <gregkh@linuxfoundation.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Herbert Xu <herbert@gondor.apana.org.au> Cc: linux-crypto@vger.kernel.org Cc: linux-kernel@vger.kernel.org Cc: netdev@vger.kernel.org Signed-off-by: David S. Miller <davem@davemloft.net>
* drivers: net: Fix Kconfig indentation, continuedKrzysztof Kozlowski2019-11-211-32/+32
| | | | | | | | | Adjust indentation from spaces to tab (+optional two spaces) as in coding style. This fixes various indentation mixups (seven spaces, tab+one space, etc). Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* drivers: net: Fix Kconfig indentationKrzysztof Kozlowski2019-09-261-1/+1
| | | | | | | | | | | Adjust indentation from spaces to tab (+optional two spaces) as in coding style with command like: $ sed -e 's/^ /\t/' -i */Kconfig Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> Acked-by: Kalle Valo <kvalo@codeaurora.org> Reviewed-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* treewide: Add SPDX license identifier - Makefile/KconfigThomas Gleixner2019-05-211-0/+1
| | | | | | | | | | | | | | Add SPDX license identifiers to all Make/Kconfig files which: - Have no license information of any form These files fall under the project license, GPL v2 only. The resulting SPDX license identifier is: GPL-2.0-only Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* net: devlink: select NET_DEVLINK from driversJiri Pirko2019-03-241-0/+1
| | | | | | | | | | Some drivers are becoming more dependent on NET_DEVLINK being selected in configuration. With upcoming compat functions, the behavior would be wrong in case devlink was not compiled in. So make the drivers select NET_DEVLINK and rely on the functions being there, not just stubs. Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* gtp: change NET_UDP_TUNNEL dependency to selectMatteo Croce2019-03-191-2/+2
| | | | | | | | | | | | | Similarly to commit a7603ac1fc8c ("geneve: change NET_UDP_TUNNEL dependency to select"), GTP has a dependency on NET_UDP_TUNNEL which makes impossible to compile it if no other protocol depending on NET_UDP_TUNNEL is selected. Fix this by changing the depends to a select, and drop NET_IP_TUNNEL from the select list, as it already depends on NET_UDP_TUNNEL. Signed-off-by: Matteo Croce <mcroce@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: devlink: turn devlink into a built-inJakub Kicinski2019-02-261-1/+0
| | | | | | | | | | | | | | | Being able to build devlink as a module causes growing pains. First all drivers had to add a meta dependency to make sure they are not built in when devlink is built as a module. Now we are struggling to invoke ethtool compat code reliably. Make devlink code built-in, users can still not build it at all but the dynamically loadable module option is removed. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Acked-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller2019-02-151-2/+2
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The netfilter conflicts were rather simple overlapping changes. However, the cls_tcindex.c stuff was a bit more complex. On the 'net' side, Cong is fixing several races and memory leaks. Whilst on the 'net-next' side we have Vlad adding the rtnl-ness support. What I've decided to do, in order to resolve this, is revert the conversion over to using a workqueue that Cong did, bringing us back to pure RCU. I did it this way because I believe that either Cong's races don't apply with have Vlad did things, or Cong will have to implement the race fix slightly differently. Signed-off-by: David S. Miller <davem@davemloft.net>
| * geneve: change NET_UDP_TUNNEL dependency to selectMatteo Croce2019-02-121-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Due to the depends on NET_UDP_TUNNEL, at the moment it is impossible to compile GENEVE if no other protocol depending on NET_UDP_TUNNEL is selected. Fix this changing the depends to a select, and drop NET_IP_TUNNEL from the select list, as it already depends on NET_UDP_TUNNEL. Signed-off-by: Matteo Croce <mcroce@redhat.com> Reviewed-and-tested-by: Andrea Claudi <aclaudi@redhat.com> Tested-by: Davide Caratti <dcaratti@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: ipvlan_l3s: fix kconfig dependency warningRandy Dunlap2019-02-141-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix the kconfig warning in IPVLAN_L3S when neither INET nor IPV6 is enabled: WARNING: unmet direct dependencies detected for NET_L3_MASTER_DEV Depends on [n]: NET [=y] && (INET [=n] || IPV6 [=n]) Selected by [y]: - IPVLAN_L3S [=y] && NETDEVICES [=y] && NET_CORE [=y] && NETFILTER [=y] Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Cc: Mahesh Bandewar <maheshb@google.com> Cc: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Daniel Borkmann <daniel@iogearbox.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* | ipvlan: decouple l3s mode dependencies from other modesDaniel Borkmann2019-02-081-2/+4
|/ | | | | | | | | | | | | | | | | | | | | Right now ipvlan has a hard dependency on CONFIG_NETFILTER and otherwise it cannot be built. However, the only ipvlan operation mode that actually depends on netfilter is l3s, everything else is independent of it. Break this hard dependency such that users are able to use ipvlan l3 mode on systems where netfilter is not compiled in. Therefore, this adds a hidden CONFIG_IPVLAN_L3S bool which is defaulting to y when CONFIG_NETFILTER is set in order to retain existing behavior for l3s. All l3s related code is refactored into ipvlan_l3s.c that is compiled in when enabled. Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Cc: Mahesh Bandewar <maheshb@google.com> Cc: Florian Westphal <fw@strlen.de> Cc: Martynas Pumputis <m@lambda.lt> Acked-by: Florian Westphal <fw@strlen.de> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: Fix typo in NET_FAILOVER help textJonathan Neuschäfer2019-01-181-1/+1
| | | | | | | | "also enables" should not be spelled as one word. Fixes: cfc80d9a1163 ("net: Introduce net_failover driver") Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: documentation: build a directory structure for driversJakub Kicinski2018-12-051-4/+4
| | | | | | | | | | | | | | | | | Documentation/networking/ is full of cryptically named files with driver documentation. This makes finding interesting information at a glance really hard. Move all those files into a directory called device_drivers (since not all drivers are for device) and fix up references. RFC v0.1 -> RFC v1: - also add .txt suffix to the files which are missing it (Quentin) Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: Quentin Monnet <quentin.monnet@netronome.com> Acked-by: David Ahern <dsahern@gmail.com> Acked-by: Henrik Austad <henrik@austad.us> Signed-off-by: David S. Miller <davem@davemloft.net>
* virtio_net: Extend virtio to use VF datapath when availableSridhar Samudrala2018-05-291-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | This patch enables virtio_net to switch over to a VF datapath when STANDBY feature is enabled and a VF netdev is present with the same MAC address. It allows live migration of a VM with a direct attached VF without the need to setup a bond/team between a VF and virtio net device in the guest. It uses the API that is exported by the net_failover driver to create and and destroy a master failover netdev. When STANDBY feature is enabled, an additional netdev(failover netdev) is created that acts as a master device and tracks the state of the 2 lower netdevs. The original virtio_net netdev is marked as 'standby' netdev and a passthru device with the same MAC is registered as 'primary' netdev. The hypervisor needs to unplug the VF device from the guest on the source host and reset the MAC filter of the VF to initiate failover of datapath to virtio before starting the migration. After the migration is completed, the destination hypervisor sets the MAC filter on the VF and plugs it back to the guest to switch over to VF datapath. This patch is based on the discussion initiated by Jesse on this thread. https://marc.info/?l=linux-virtualization&m=151189725224231&w=2 Signed-off-by: Sridhar Samudrala <sridhar.samudrala@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: Introduce net_failover driverSridhar Samudrala2018-05-291-0/+12
| | | | | | | | | | | | | | | | | | | | | | | The net_failover driver provides an automated failover mechanism via APIs to create and destroy a failover master netdev and manages a primary and standby slave netdevs that get registered via the generic failover infrastructure. The failover netdev acts a master device and controls 2 slave devices. The original paravirtual interface gets registered as 'standby' slave netdev and a passthru/vf device with the same MAC gets registered as 'primary' slave netdev. Both 'standby' and 'failover' netdevs are associated with the same 'pci' device. The user accesses the network interface via 'failover' netdev. The 'failover' netdev chooses 'primary' netdev as default for transmits when it is available with link up and running. This can be used by paravirtual drivers to enable an alternate low latency datapath. It also enables hypervisor controlled live migration of a VM with direct attached VF by failing over to the paravirtual datapath when the VF is unplugged. Signed-off-by: Sridhar Samudrala <sridhar.samudrala@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* geneve: fix build with modular IPV6Tobias Regnery2018-04-271-0/+1
| | | | | | | | | | | | | | | | Commit c40e89fd358e ("geneve: configure MTU based on a lower device") added an IS_ENABLED(CONFIG_IPV6) to geneve, leading to the following link error with CONFIG_GENEVE=y and CONFIG_IPV6=m: drivers/net/geneve.o: In function `geneve_link_config': geneve.c:(.text+0x14c): undefined reference to `rt6_lookup' Fix this by adding a Kconfig dependency and forcing GENEVE to be a module when IPV6 is a module. Fixes: c40e89fd358e ("geneve: configure MTU based on a lower device") Signed-off-by: Tobias Regnery <tobias.regnery@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* netdevsim: Add simple FIB resource controller via devlinkDavid Ahern2018-03-291-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add devlink support to netdevsim and use it to implement a simple, profile based resource controller. Only one controller is needed per namespace, so the first netdevsim netdevice in a namespace registers with devlink. If that device is deleted, the resource settings are deleted. The resource controller allows a user to limit the number of IPv4 and IPv6 FIB entries and FIB rules. The resource paths are: /IPv4 /IPv4/fib /IPv4/fib-rules /IPv6 /IPv6/fib /IPv6/fib-rules The IPv4 and IPv6 top level resources are unlimited in size and can not be changed. From there, the number of FIB entries and FIB rule entries are unlimited by default. A user can specify a limit for the fib and fib-rules resources: $ devlink resource set netdevsim/netdevsim0 path /IPv4/fib size 96 $ devlink resource set netdevsim/netdevsim0 path /IPv4/fib-rules size 16 $ devlink resource set netdevsim/netdevsim0 path /IPv6/fib size 64 $ devlink resource set netdevsim/netdevsim0 path /IPv6/fib-rules size 16 $ devlink dev reload netdevsim/netdevsim0 such that the number of rules or routes is limited (96 ipv4 routes in the example above): $ for n in $(seq 1 32); do ip ro add 10.99.$n.0/24 dev eth1; done Error: netdevsim: Exceeded number of supported fib entries. $ devlink resource show netdevsim/netdevsim0 netdevsim/netdevsim0: name IPv4 size unlimited unit entry size_min 0 size_max unlimited size_gran 1 dpipe_tables non resources: name fib size 96 occ 96 unit entry size_min 0 size_max unlimited size_gran 1 dpipe_tables ... With this template in place for resource management, it is fairly trivial to extend and shows one way to implement a simple counter based resource controller typical of network profiles. Currently, devlink only supports initial namespace. Code is in place to adapt netdevsim to a per namespace controller once the network namespace issues are resolved. Signed-off-by: David Ahern <dsa@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* ipvlan: fix building with modular IPV6Arnd Bergmann2018-02-271-0/+1
| | | | | | | | | | | | | | | | | We no longer depend on IPV6, but that now causes a link error with CONFIG_IPV6=m and CONFIG_IPVLAN=y: drivers/net/ipvlan/ipvlan_core.o: In function `ipvlan_queue_xmit': ipvlan_core.c:(.text+0x1440): undefined reference to `ip6_route_output_flags' drivers/net/ipvlan/ipvlan_core.o: In function `ipvlan_l3_rcv': ipvlan_core.c:(.text+0x1818): undefined reference to `ip6_route_input_lookup' This adds back the dependency on IPV6, with the option of building without IPV6, but forcing IPVLAN to be a module when IPV6 is a module. Fixes: 94333fac44d1 ("ipvlan: drop ipv6 dependency") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: David S. Miller <davem@davemloft.net>
* ipvlan: selects master_l3 device instead of depending on itMatteo Croce2018-02-211-1/+1
| | | | | | | | | The L3 Master device is just a glue between the core networking code and device drivers, so it should be selected automatically rather than requiring to be enabled explicitly. Signed-off-by: Matteo Croce <mcroce@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* ipvlan: drop ipv6 dependencyMatteo Croce2018-02-211-1/+0
| | | | | | | | | IPVlan has an hard dependency on IPv6, refactor the ipvlan code to allow compiling it with IPv6 disabled, move duplicate code into addr_equal() and refactor series of if-else into a switch. Signed-off-by: Matteo Croce <mcroce@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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