- 27 Apr, 2021 11 commits
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Yangbo Lu authored
Update timestamping doc for DSA switches to describe current implementation accurately. On TX, the skb cloning is no longer in DSA generic code. Signed-off-by:
Yangbo Lu <yangbo.lu@nxp.com> Acked-by:
Richard Cochran <richardcochran@gmail.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Yangbo Lu authored
Free skb->cb usage in core driver and let device drivers decide to use or not. The reason having a DSA_SKB_CB(skb)->clone was because dsa_skb_tx_timestamp() which may set the clone pointer was called before p->xmit() which would use the clone if any, and the device driver has no way to initialize the clone pointer. This patch just put memset(skb->cb, 0, sizeof(skb->cb)) at beginning of dsa_slave_xmit(). Some new features in the future, like one-step timestamp may need more bytes of skb->cb to use in dsa_skb_tx_timestamp(), and p->xmit(). Signed-off-by:
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Yangbo Lu authored
It was a waste to clone skb directly in dsa_skb_tx_timestamp(). For one-step timestamping, a clone was not needed. For any failure of port_txtstamp (this may usually happen), the skb clone had to be freed. So this patch moves skb cloning for tx timestamp out of dsa core, and let drivers clone skb in port_txtstamp if they really need. Signed-off-by:
Kurt Kanzenbach <kurt@linutronix.de> Acked-by:
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Yangbo Lu authored
Move ptp_classify_raw out of dsa core driver for handling tx timestamp request. Let device drivers do this if they want. Not all drivers want to limit tx timestamping for only PTP packet. Signed-off-by:
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Yangbo Lu authored
Check tx timestamp request in core driver at very beginning of dsa_skb_tx_timestamp(), so that most skbs not requiring tx timestamp just return. And drop such checking in device drivers. Signed-off-by:
Florian Fainelli <f.fainelli@gmail.com> Acked-by:
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qhjindev authored
change 'privae' to 'private' Signed-off-by:
qhjindev <qhjin_dev@163.com> Signed-off-by:
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Tobias Waldekranz authored
The .serdes_get_lane op used the magic value 0xff to indicate a valid SERDES lane and 0 signaled that a non-SERDES mode was set on the port. Unfortunately, "0" is also a valid lane ID, so even when these ports where configured to e.g. RGMII the driver would set them up as SERDES ports. - Replace 0xff with 0 to indicate a valid lane ID. The number is on the one hand just as arbitrary, but it is at least the first valid one and therefore less of a surprise. - Follow the other .serdes_get_lane implementations and return -ENODEV in the case where no SERDES is assigned to the port. Fixes: f5be107c ("net: dsa: mv88e6xxx: Support serdes ports on MV88E6097/6095/6185") Signed-off-by:
Tobias Waldekranz <tobias@waldekranz.com> Reviewed-by:
Andrew Lunn <andrew@lunn.ch> Signed-off-by:
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Ivan Bornyakov authored
There is no real need for disabling autonigotiation in config_init(). Leave it enabled by default. Signed-off-by:
Ivan Bornyakov <i.bornyakov@metrotek.ru> Signed-off-by:
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Jiapeng Chong authored
Variable offset is being assigned a value from a calculation however the variable is never read, so this redundant variable can be removed. Cleans up the following clang-analyzer warning: net/rxrpc/rxkad.c:579:2: warning: Value stored to 'offset' is never read [clang-analyzer-deadcode.DeadStores]. net/rxrpc/rxkad.c:485:2: warning: Value stored to 'offset' is never read [clang-analyzer-deadcode.DeadStores]. Reported-by:
Abaci Robot <abaci@linux.alibaba.com> Signed-off-by:
Jiapeng Chong <jiapeng.chong@linux.alibaba.com> Signed-off-by:
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Christophe JAILLET authored
Use 'hash_for_each_rcu' and 'hash_for_each_safe' instead of hand writing them. This saves some lines of code, reduce indentation and improve readability. Signed-off-by:
Christophe JAILLET <christophe.jaillet@wanadoo.fr> Signed-off-by:
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Linus Lüssing authored
The IPv6 Multicast Router Advertisements parsing has the following two issues: For one thing, ICMPv6 MRD Advertisements are smaller than ICMPv6 MLD messages (ICMPv6 MRD Adv.: 8 bytes vs. ICMPv6 MLDv1/2: >= 24 bytes, assuming MLDv2 Reports with at least one multicast address entry). When ipv6_mc_check_mld_msg() tries to parse an Multicast Router Advertisement its MLD length check will fail - and it will wrongly return -EINVAL, even if we have a valid MRD Advertisement. With the returned -EINVAL the bridge code will assume a broken packet and will wrongly discard it, potentially leading to multicast packet loss towards multicast routers. The second issue is the MRD header parsing in br_ip6_multicast_mrd_rcv(): It wrongly checks for an ICMPv6 header immediately after the IPv6 header (IPv6 next header type). However according to RFC4286, section 2 all MRD messages contain a Router Alert option (just like MLD). So instead there is an IPv6 Hop-by-Hop option for the Router Alert between the IPv6 and ICMPv6 header, again leading to the bridge wrongly discarding Multicast Router Advertisements. To fix these two issues, introduce a new return value -ENODATA to ipv6_mc_check_mld() to indicate a valid ICMPv6 packet with a hop-by-hop option which is not an MLD but potentially an MRD packet. This also simplifies further parsing in the bridge code, as ipv6_mc_check_mld() already fully checks the ICMPv6 header and hop-by-hop option. These issues were found and fixed with the help of the mrdisc tool (https://github.com/troglobit/mrdisc). Fixes: 4b3087c7 ("bridge: Snoop Multicast Router Advertisements") Signed-off-by:
Linus Lüssing <linus.luessing@c0d3.blue> Signed-off-by:
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- 26 Apr, 2021 29 commits
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Lv Yunlong authored
In emac_mac_tx_buf_send, it calls emac_tx_fill_tpd(..,skb,..). If some error happens in emac_tx_fill_tpd(), the skb will be freed via dev_kfree_skb(skb) in error branch of emac_tx_fill_tpd(). But the freed skb is still used via skb->len by netdev_sent_queue(,skb->len). As i observed that emac_tx_fill_tpd() haven't modified the value of skb->len, thus my patch assigns skb->len to 'len' before the possible free and use 'len' instead of skb->len later. Fixes: b9b17deb ("net: emac: emac gigabit ethernet controller driver") Signed-off-by:
Lv Yunlong <lyl2019@mail.ustc.edu.cn> Signed-off-by:
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Davide Caratti authored
while testing re-assembly/re-fragmentation using act_ct, it's possible to observe a crash like the following one: KASAN: maybe wild-memory-access in range [0x0001000000000448-0x000100000000044f] CPU: 50 PID: 0 Comm: swapper/50 Tainted: G S 5.12.0-rc7+ #424 Hardware name: Dell Inc. PowerEdge R730/072T6D, BIOS 2.4.3 01/17/2017 RIP: 0010:inet_frag_rbtree_purge+0x50/0xc0 Code: 00 fc ff df 48 89 c3 31 ed 48 89 df e8 a9 7a 38 ff 4c 89 fe 48 89 df 49 89 c6 e8 5b 3a 38 ff 48 8d 7b 40 48 89 f8 48 c1 e8 03 <42> 80 3c 20 00 75 59 48 8d bb d0 00 00 00 4c 8b 6b 40 48 89 f8 48 RSP: 0018:ffff888c31449db8 EFLAGS: 00010203 RAX: 0000200000000089 RBX: 000100000000040e RCX: ffffffff989eb960 RDX: 0000000000000140 RSI: ffffffff97cfb977 RDI: 000100000000044e RBP: 0000000000000900 R08: 0000000000000000 R09: ffffed1186289350 R10: 0000000000000003 R11: ffffed1186289350 R12: dffffc0000000000 R13: 000100000000040e R14: 0000000000000000 R15: ffff888155e02160 FS: 0000000000000000(0000) GS:ffff888c31440000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005600cb70a5b8 CR3: 0000000a2c014005 CR4: 00000000003706e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <IRQ> inet_frag_destroy+0xa9/0x150 call_timer_fn+0x2d/0x180 run_timer_softirq+0x4fe/0xe70 __do_softirq+0x197/0x5a0 irq_exit_rcu+0x1de/0x200 sysvec_apic_timer_interrupt+0x6b/0x80 </IRQ> when act_ct temporarily stores an IP fragment, restoring the skb qdisc cb results in putting random data in FRAG_CB(), and this causes those "wild" memory accesses later, when the rbtree is purged. Never overwrite the skb cb in case tcf_ct_handle_fragments() returns -EINPROGRESS. Fixes: ae372cb1 ("net/sched: act_ct: fix restore the qdisc_skb_cb after defrag") Fixes: 7baf2429 ("net/sched: cls_flower add CT_FLAGS_INVALID flag support") Reported-by:
Shuang Li <shuali@redhat.com> Signed-off-by:
Davide Caratti <dcaratti@redhat.com> Signed-off-by:
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Arnaldo Carvalho de Melo authored
Ingo sent typo fixes for tools/ and this resulted in a warning when building the perf/core branch that will be sent upstream in the next merge window: Warning: Kernel ABI header at 'tools/perf/trace/beauty/include/linux/socket.h' differs from latest version at 'include/linux/socket.h' diff -u tools/perf/trace/beauty/include/linux/socket.h include/linux/socket.h Fix the typo on the kernel file to address this. Signed-off-by:
Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by:
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Ezequiel Garcia authored
Convert Rockchip dwmac controller dt-bindings to YAML. Signed-off-by:
Ezequiel Garcia <ezequiel@collabora.com> Reviewed-by:
David Wu <david.wu@rock-chips.com> Signed-off-by:
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Ezequiel Garcia authored
Add Rockchip DWMAC controllers, which are based on snps,dwmac. Some of the SoCs require up to eight clocks, so maxItems for clocks and clock-names need to be increased. Signed-off-by:
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Ezequiel Garcia authored
Rockchip DWMAC glue driver uses the phy node (phy-handle) reset specifier, and not a "mac-phy" reset specifier. Remove it. Signed-off-by:
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Johan Hovold authored
Commit 8a12f883 ("net: hso: fix null-ptr-deref during tty device unregistration") fixed the racy minor allocation reported by syzbot, but introduced an unconditional NULL-pointer dereference on every disconnect instead. Specifically, the serial device table must no longer be accessed after the minor has been released by hso_serial_tty_unregister(). Fixes: 8a12f883 ("net: hso: fix null-ptr-deref during tty device unregistration") Cc: stable@vger.kernel.org Cc: Anirudh Rayabharam <mail@anirudhrb.com> Reported-by:
Leonardo Antoniazzi <leoanto@aruba.it> Signed-off-by:
Johan Hovold <johan@kernel.org> Reviewed-by:
Anirudh Rayabharam <mail@anirudhrb.com> Signed-off-by:
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David S. Miller authored
Merge tag 'linux-can-next-for-5.13-20210426' of git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can-next Marc Kleine-Budde says: ==================== pull-request: can-next 2021-04-26 this is a pull request of 4 patches for net-next/master. the first two patches are from Colin Ian King and target the etas_es58x driver, they add a missing NULL pointer check and fix some typos. The next two patches are by Erik Flodin. The first one updates the CAN documentation regarding filtering, the other one fixes the header alignment in CAN related proc output on 64 bit systems. ==================== Signed-off-by:
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Jiapeng Chong authored
Variable ret is set to zero but this value is never read as it is overwritten with a new value later on, hence it is a redundant assignment and can be removed. Cleans up the following clang-analyzer warning: drivers/net/ethernet/davicom/dm9000.c:1527:5: warning: Value stored to 'ret' is never read [clang-analyzer-deadcode.DeadStores]. Reported-by:
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Jiapeng Chong authored
Variable prev_link and curr_link is being assigned a value from a calculation however the variable is never read, so this redundant variable can be removed. Cleans up the following clang-analyzer warning: drivers/net/ethernet/amd/pcnet32.c:2857:4: warning: Value stored to 'prev_link' is never read [clang-analyzer-deadcode.DeadStores]. drivers/net/ethernet/amd/pcnet32.c:2856:4: warning: Value stored to 'curr_link' is never read [clang-analyzer-deadcode.DeadStores]. Reported-by:
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git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-nextDavid S. Miller authored
Pablo Neira Ayuso says: ==================== Netfilter updates for net-next The following patchset contains Netfilter updates for net-next: 1) The various ip(6)table_foo incarnations are updated to expect that the table is passed as 'void *priv' argument that netfilter core passes to the hook functions. This reduces the struct net size by 2 cachelines on x86_64. From Florian Westphal. 2) Add cgroupsv2 support for nftables. 3) Fix bridge log family merge into nf_log_syslog: Missing unregistration from netns exit path, from Phil Sutter. 4) Add nft_pernet() helper to access nftables pernet area. 5) Add struct nfnl_info to reduce nfnetlink callback footprint and to facilite future updates. Consolidate nfnetlink callbacks. 6) Add CONFIG_NETFILTER_XTABLES_COMPAT Kconfig knob, also from Florian. ==================== Signed-off-by: -
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Florian Westphal authored
The compat layer needs to parse untrusted input (the ruleset) to translate it to a 64bit compatible format. We had a number of bugs in this department in the past, so allow users to turn this feature off. Add CONFIG_NETFILTER_XTABLES_COMPAT kconfig knob and make it default to y to keep existing behaviour. Signed-off-by:
Florian Westphal <fw@strlen.de> Signed-off-by:
Pablo Neira Ayuso <pablo@netfilter.org>
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Pablo Neira Ayuso authored
Add enum nfnl_callback_type to identify the callback type to provide one single callback. Signed-off-by: -
Pablo Neira Ayuso authored
Update batch callbacks to use the nfnl_info structure. Rename one clashing info variable to expr_info. Signed-off-by: -
Pablo Neira Ayuso authored
Update rcu callbacks to use the nfnl_info structure. Signed-off-by: -
Pablo Neira Ayuso authored
Add a new structure to reduce callback footprint and to facilite extensions of the nfnetlink callback interface in the future. Signed-off-by: -
Pablo Neira Ayuso authored
Consolidate call to net_generic(net, nf_tables_net_id) in this wrapper function. Signed-off-by: -
David S. Miller authored
Michael Chan says: ==================== bnxt_en: Updates for net-next. This series includes these main enhancements: 1. Link related changes - add NRZ/PAM4 link signal mode to the link up message if known - rely on firmware to bring down the link during ifdown 2. SRIOV related changes - allow VF promiscuous mode if the VF is trusted - allow ndo operations to configure VF when the PF is ifdown - fix the scenario of the VF taking back control of it's MAC address - add Hyper-V VF device IDs 3. Support the option to transmit without FCS/CRC. 4. Implement .ndo_features_check() to disable offload when the UDP encap. packets are not supported. v2: Patch10: Reverse the check for supported UDP ports to be more straight forward. ==================== Signed-off-by: -
Michael Chan authored
For UDP encapsultions, we only support the offloaded Vxlan port and Geneve port. All other ports included FOU and GUE are not supported so we need to turn off TSO and checksum features. v2: Reverse the check for supported UDP ports to be more straight forward. Reviewed-by:
Sriharsha Basavapatna <sriharsha.basavapatna@broadcom.com> Reviewed-by:
Edwin Peer <edwin.peer@broadcom.com> Signed-off-by:
Michael Chan <michael.chan@broadcom.com> Signed-off-by:
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Michael Chan authored
If firmware is capable, set the IFF_SUPP_NOFCS flag to support the sockets option to transmit packets without FCS. This is mainly used for testing. Reviewed-by: Edwin Peer <edwin.peer@broadcom.com Signed-off-by:
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Michael Chan authored
Support VF device IDs used by the Hyper-V hypervisor. Reviewed-by:
Vasundhara Volam <vasundhara-v.volam@broadcom.com> Reviewed-by:
Andy Gospodarek <gospo@broadcom.com> Signed-off-by:
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Michael Chan authored
When the PF is no longer enforcing an assigned MAC address on a VF, the VF needs to call bnxt_approve_mac() to tell the PF what MAC address it is now using. Otherwise it gets out of sync and the PF won't know what MAC address the VF wants to use. Ultimately the VF will fail when it tries to setup the L2 MAC filter for the vnic. Reviewed-by:
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Michael Chan authored
Move it before bnxt_update_vf_mac(). In the next patch, we need to call bnxt_approve_mac() from bnxt_update_mac() under some conditions. This will avoid forward declaration. Reviewed-by:
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Edwin Peer authored
It is perfectly legal for the stack to query and configure VFs via PF NDOs while the NIC is administratively down. Remove the unnecessary check for the PF to be in open state. Signed-off-by:
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Edwin Peer authored
Firmware previously only allowed promiscuous mode for VFs associated with a default VLAN. It is now possible to enable promiscuous mode for a VF having no VLAN configured provided that it is trusted. In such cases the VF will see all packets received by the PF, irrespective of destination MAC or VLAN. Note, it is necessary to query firmware at the time of bnxt_promisc_ok() instead of in bnxt_hwrm_func_qcfg() because the trusted status might be altered by the PF after the VF has been configured. This check must now also be deferred because the firmware call sleeps. Signed-off-by:
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Michael Chan authored
In the current code, the driver will not shutdown the link during IFDOWN if there are still VFs sharing the port. Newer firmware will manage the link down decision when the port is shared by VFs, so we can just call firmware to shutdown the port unconditionally and let firmware make the final decision. Reviewed-by:
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Michael Chan authored
Copy the phy related feature flags from the firmware call HWRM_PORT_PHY_QCAPS to this new field. We can also remove the flags field in the bnxt_test_info structure. It's cleaner to have all PHY related flags in one location, directly copied from the firmware. To keep the BNXT_PHY_CFG_ABLE() macro logic the same, we need to make a slight adjustment to check that it is a PF. Reviewed-by:
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Edwin Peer authored
Firmware reports link signalling mode for certain speeds. In these cases, print the signalling modes in kernel log link up messages. Reviewed-by:
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