- 19 Apr, 2022 7 commits
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Florent Fourcot authored
A request without interface name/interface index/interface group cannot work. We should return EINVAL Signed-off-by:
Florent Fourcot <florent.fourcot@wifirst.fr> Signed-off-by:
Brian Baboch <brian.baboch@wifirst.fr> Reviewed-by:
Jakub Kicinski <kuba@kernel.org> Signed-off-by:
Paolo Abeni <pabeni@redhat.com>
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Florent Fourcot authored
If IFLA_ALT_IFNAME is set and given interface is not found, we should return ENODEV and be consistent with IFLA_IFNAME behaviour This commit extends feature of commit 76c9ac0e, "net: rtnetlink: add possibility to use alternative names as message handle" CC: Jiri Pirko <jiri@mellanox.com> Signed-off-by:
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Florent Fourcot authored
buffer called "ifname" given in function rtnl_dev_get is always valid when called by setlink/newlink, but contains only empty string when IFLA_IFNAME is not given. So IFLA_ALT_IFNAME is always ignored This patch fixes rtnl_dev_get function with a remove of ifname argument, and move ifname copy in do_setlink when required. It extends feature of commit 76c9ac0e, "net: rtnetlink: add possibility to use alternative names as message handle"" CC: Jiri Pirko <jiri@mellanox.com> Signed-off-by:
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Florent Fourcot authored
When the interface does not exist, and a group is given, the given parameters are being set to all interfaces of the given group. The given IFNAME/ALT_IF_NAME are being ignored in that case. That can be dangerous since a typo (or a deleted interface) can produce weird side effects for caller: Case 1: IFLA_IFNAME=valid_interface IFLA_GROUP=1 MTU=1234 Case 1 will update MTU and group of the given interface "valid_interface". Case 2: IFLA_IFNAME=doesnotexist IFLA_GROUP=1 MTU=1234 Case 2 will update MTU of all interfaces in group 1. IFLA_IFNAME is ignored in this case This behaviour is not consistent and dangerous. In order to fix this issue, we now return ENODEV when the given IFNAME does not exist. Signed-off-by:
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Paolo Abeni authored
Tonghao Zhang says: ==================== net: sched: allow user to select txqueue From: Tonghao Zhang <xiangxia.m.yue@gmail.com> Patch 1 allow user to select txqueue in clsact hook. Patch 2 support skbhash to select txqueue. ==================== Link: https://lore.kernel.org/r/20220415164046.26636-1-xiangxia.m.yue@gmail.comSigned-off-by:
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Tonghao Zhang authored
This patch allows users to pick queue_mapping, range from A to B. Then we can load balance packets from A to B tx queue. The range is an unsigned 16bit value in decimal format. $ tc filter ... action skbedit queue_mapping skbhash A B "skbedit queue_mapping QUEUE_MAPPING" (from "man 8 tc-skbedit") is enhanced with flags: SKBEDIT_F_TXQ_SKBHASH +----+ +----+ +----+ | P1 | | P2 | | Pn | +----+ +----+ +----+ | | | +-----------+-----------+ | | clsact/skbedit | MQ v +-----------+-----------+ | q0 | qn | qm v v v HTB/FQ FIFO ... FIFO For example: If P1 sends out packets to different Pods on other host, and we want distribute flows from qn - qm. Then we can use skb->hash as hash. setup commands: $ NETDEV=eth0 $ ip netns add n1 $ ip link add ipv1 link $NETDEV type ipvlan mode l2 $ ip link set ipv1 netns n1 $ ip netns exec n1 ifconfig ipv1 2.2.2.100/24 up $ tc qdisc add dev $NETDEV clsact $ tc filter add dev $NETDEV egress protocol ip prio 1 \ flower skip_hw src_ip 2.2.2.100 action skbedit queue_mapping skbhash 2 6 $ tc qdisc add dev $NETDEV handle 1: root mq $ tc qdisc add dev $NETDEV parent 1:1 handle 2: htb $ tc class add dev $NETDEV parent 2: classid 2:1 htb rate 100kbit $ tc class add dev $NETDEV parent 2: classid 2:2 htb rate 200kbit $ tc qdisc add dev $NETDEV parent 1:2 tbf rate 100mbit burst 100mb latency 1 $ tc qdisc add dev $NETDEV parent 1:3 pfifo $ tc qdisc add dev $NETDEV parent 1:4 pfifo $ tc qdisc add dev $NETDEV parent 1:5 pfifo $ tc qdisc add dev $NETDEV parent 1:6 pfifo $ tc qdisc add dev $NETDEV parent 1:7 pfifo $ ip netns exec n1 iperf3 -c 2.2.2.1 -i 1 -t 10 -P 10 pick txqueue from 2 - 6: $ ethtool -S $NETDEV | grep -i tx_queue_[0-9]_bytes tx_queue_0_bytes: 42 tx_queue_1_bytes: 0 tx_queue_2_bytes: 11442586444 tx_queue_3_bytes: 7383615334 tx_queue_4_bytes: 3981365579 tx_queue_5_bytes: 3983235051 tx_queue_6_bytes: 6706236461 tx_queue_7_bytes: 42 tx_queue_8_bytes: 0 tx_queue_9_bytes: 0 txqueues 2 - 6 are mapped to classid 1:3 - 1:7 $ tc -s class show dev $NETDEV ... class mq 1:3 root leaf 8002: Sent 11949133672 bytes 7929798 pkt (dropped 0, overlimits 0 requeues 0) backlog 0b 0p requeues 0 class mq 1:4 root leaf 8003: Sent 7710449050 bytes 5117279 pkt (dropped 0, overlimits 0 requeues 0) backlog 0b 0p requeues 0 class mq 1:5 root leaf 8004: Sent 4157648675 bytes 2758990 pkt (dropped 0, overlimits 0 requeues 0) backlog 0b 0p requeues 0 class mq 1:6 root leaf 8005: Sent 4159632195 bytes 2759990 pkt (dropped 0, overlimits 0 requeues 0) backlog 0b 0p requeues 0 class mq 1:7 root leaf 8006: Sent 7003169603 bytes 4646912 pkt (dropped 0, overlimits 0 requeues 0) backlog 0b 0p requeues 0 ... Cc: Jamal Hadi Salim <jhs@mojatatu.com> Cc: Cong Wang <xiyou.wangcong@gmail.com> Cc: Jiri Pirko <jiri@resnulli.us> Cc: "David S. Miller" <davem@davemloft.net> Cc: Jakub Kicinski <kuba@kernel.org> Cc: Jonathan Lemon <jonathan.lemon@gmail.com> Cc: Eric Dumazet <edumazet@google.com> Cc: Alexander Lobakin <alobakin@pm.me> Cc: Paolo Abeni <pabeni@redhat.com> Cc: Talal Ahmad <talalahmad@google.com> Cc: Kevin Hao <haokexin@gmail.com> Cc: Ilias Apalodimas <ilias.apalodimas@linaro.org> Cc: Kees Cook <keescook@chromium.org> Cc: Kumar Kartikeya Dwivedi <memxor@gmail.com> Cc: Antoine Tenart <atenart@kernel.org> Cc: Wei Wang <weiwan@google.com> Cc: Arnd Bergmann <arnd@arndb.de> Signed-off-by:Tonghao Zhang <xiangxia.m.yue@gmail.com> Reviewed-by:
Jamal Hadi Salim <jhs@mojatatu.com> Signed-off-by:
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Tonghao Zhang authored
This patch fixes issue: * If we install tc filters with act_skbedit in clsact hook. It doesn't work, because netdev_core_pick_tx() overwrites queue_mapping. $ tc filter ... action skbedit queue_mapping 1 And this patch is useful: * We can use FQ + EDT to implement efficient policies. Tx queues are picked by xps, ndo_select_queue of netdev driver, or skb hash in netdev_core_pick_tx(). In fact, the netdev driver, and skb hash are _not_ under control. xps uses the CPUs map to select Tx queues, but we can't figure out which task_struct of pod/containter running on this cpu in most case. We can use clsact filters to classify one pod/container traffic to one Tx queue. Why ? In containter networking environment, there are two kinds of pod/ containter/net-namespace. One kind (e.g. P1, P2), the high throughput is key in these applications. But avoid running out of network resource, the outbound traffic of these pods is limited, using or sharing one dedicated Tx queues assigned HTB/TBF/FQ Qdisc. Other kind of pods (e.g. Pn), the low latency of data access is key. And the traffic is not limited. Pods use or share other dedicated Tx queues assigned FIFO Qdisc. This choice provides two benefits. First, contention on the HTB/FQ Qdisc lock is significantly reduced since fewer CPUs contend for the same queue. More importantly, Qdisc contention can be eliminated completely if each CPU has its own FIFO Qdisc for the second kind of pods. There must be a mechanism in place to support classifying traffic based on pods/container to different Tx queues. Note that clsact is outside of Qdisc while Qdisc can run a classifier to select a sub-queue under the lock. In general recording the decision in the skb seems a little heavy handed. This patch introduces a per-CPU variable, suggested by Eric. The xmit.skip_txqueue flag is firstly cleared in __dev_queue_xmit(). - Tx Qdisc may install that skbedit actions, then xmit.skip_txqueue flag is set in qdisc->enqueue() though tx queue has been selected in netdev_tx_queue_mapping() or netdev_core_pick_tx(). That flag is cleared firstly in __dev_queue_xmit(), is useful: - Avoid picking Tx queue with netdev_tx_queue_mapping() in next netdev in such case: eth0 macvlan - eth0.3 vlan - eth0 ixgbe-phy: For example, eth0, macvlan in pod, which root Qdisc install skbedit queue_mapping, send packets to eth0.3, vlan in host. In __dev_queue_xmit() of eth0.3, clear the flag, does not select tx queue according to skb->queue_mapping because there is no filters in clsact or tx Qdisc of this netdev. Same action taked in eth0, ixgbe in Host. - Avoid picking Tx queue for next packet. If we set xmit.skip_txqueue in tx Qdisc (qdisc->enqueue()), the proper way to clear it is clearing it in __dev_queue_xmit when processing next packets. For performance reasons, use the static key. If user does not config the NET_EGRESS, the patch will not be compiled. +----+ +----+ +----+ | P1 | | P2 | | Pn | +----+ +----+ +----+ | | | +-----------+-----------+ | | clsact/skbedit | MQ v +-----------+-----------+ | q0 | q1 | qn v v v HTB/FQ HTB/FQ ... FIFO Cc: Jamal Hadi Salim <jhs@mojatatu.com> Cc: Cong Wang <xiyou.wangcong@gmail.com> Cc: Jiri Pirko <jiri@resnulli.us> Cc: "David S. Miller" <davem@davemloft.net> Cc: Jakub Kicinski <kuba@kernel.org> Cc: Jonathan Lemon <jonathan.lemon@gmail.com> Cc: Eric Dumazet <edumazet@google.com> Cc: Alexander Lobakin <alobakin@pm.me> Cc: Paolo Abeni <pabeni@redhat.com> Cc: Talal Ahmad <talalahmad@google.com> Cc: Kevin Hao <haokexin@gmail.com> Cc: Ilias Apalodimas <ilias.apalodimas@linaro.org> Cc: Kees Cook <keescook@chromium.org> Cc: Kumar Kartikeya Dwivedi <memxor@gmail.com> Cc: Antoine Tenart <atenart@kernel.org> Cc: Wei Wang <weiwan@google.com> Cc: Arnd Bergmann <arnd@arndb.de> Suggested-by:Eric Dumazet <edumazet@google.com> Signed-off-by:
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- 18 Apr, 2022 20 commits
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Luiz Angelo Daros de Luca authored
DSA tags before IP header (categories 1 and 2) or after the payload (3) might introduce offload checksum issues. Signed-off-by:
Luiz Angelo Daros de Luca <luizluca@gmail.com> Reviewed-by:
Vladimir Oltean <vladimir.oltean@nxp.com> Reviewed-by:
Florian Fainelli <f.fainelli@gmail.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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David S. Miller authored
Ido Schimmel says: ==================== mlxsw: Introduce line card support for modular switch Jiri says: This patchset introduces support for modular switch systems and also introduces mlxsw support for NVIDIA Mellanox SN4800 modular switch. It contains 8 slots to accommodate line cards - replaceable PHY modules which may contain gearboxes. Currently supported line card: 16X 100GbE (QSFP28) Other line cards that are going to be supported: 8X 200GbE (QSFP56) 4X 400GbE (QSFP-DD) There may be other types of line cards added in the future. To be consistent with the port split configuration (splitter cabels), the line card entities are treated in the similar way. The nature of a line card is not "a pluggable device", but "a pluggable PHY module". A concept of "provisioning" is introduced. The user may "provision" certain slot with a line card type. Driver then creates all instances (devlink ports, netdevices, etc) related to this line card type. It does not matter if the line card is plugged-in at the time. User is able to configure netdevices, devlink ports, setup port splitters, etc. From the perspective of the switch ASIC, all is present and can be configured. The carrier of netdevices stays down if the line card is not plugged-in. Once the line card is inserted and activated, the carrier of the related netdevices is then reflecting the physical line state, same as for an ordinary fixed port. Once user does not want to use the line card related instances anymore, he can "unprovision" the slot. Driver then removes the instances. Patches 1-4 are extending devlink driver API and UAPI in order to register, show, dump, provision and activate the line card. Patches 5-17 are implementing the introduced API in mlxsw. The last patch adds a selftest for mlxsw line cards. Example: $ devlink port # No ports are listed $ devlink lc pci/0000:01:00.0: lc 1 state unprovisioned supported_types: 16x100G lc 2 state unprovisioned supported_types: 16x100G lc 3 state unprovisioned supported_types: 16x100G lc 4 state unprovisioned supported_types: 16x100G lc 5 state unprovisioned supported_types: 16x100G lc 6 state unprovisioned supported_types: 16x100G lc 7 state unprovisioned supported_types: 16x100G lc 8 state unprovisioned supported_types: 16x100G Note that driver exposes list supported line card types. Currently there is only one: "16x100G". To provision the slot #8: $ devlink lc set pci/0000:01:00.0 lc 8 type 16x100G $ devlink lc show pci/0000:01:00.0 lc 8 pci/0000:01:00.0: lc 8 state active type 16x100G supported_types: 16x100G $ devlink port pci/0000:01:00.0/0: type notset flavour cpu port 0 splittable false pci/0000:01:00.0/53: type eth netdev enp1s0nl8p1 flavour physical lc 8 port 1 splittable true lanes 4 pci/0000:01:00.0/54: type eth netdev enp1s0nl8p2 flavour physical lc 8 port 2 splittable true lanes 4 pci/0000:01:00.0/55: type eth netdev enp1s0nl8p3 flavour physical lc 8 port 3 splittable true lanes 4 pci/0000:01:00.0/56: type eth netdev enp1s0nl8p4 flavour physical lc 8 port 4 splittable true lanes 4 pci/0000:01:00.0/57: type eth netdev enp1s0nl8p5 flavour physical lc 8 port 5 splittable true lanes 4 pci/0000:01:00.0/58: type eth netdev enp1s0nl8p6 flavour physical lc 8 port 6 splittable true lanes 4 pci/0000:01:00.0/59: type eth netdev enp1s0nl8p7 flavour physical lc 8 port 7 splittable true lanes 4 pci/0000:01:00.0/60: type eth netdev enp1s0nl8p8 flavour physical lc 8 port 8 splittable true lanes 4 pci/0000:01:00.0/61: type eth netdev enp1s0nl8p9 flavour physical lc 8 port 9 splittable true lanes 4 pci/0000:01:00.0/62: type eth netdev enp1s0nl8p10 flavour physical lc 8 port 10 splittable true lanes 4 pci/0000:01:00.0/63: type eth netdev enp1s0nl8p11 flavour physical lc 8 port 11 splittable true lanes 4 pci/0000:01:00.0/64: type eth netdev enp1s0nl8p12 flavour physical lc 8 port 12 splittable true lanes 4 pci/0000:01:00.0/125: type eth netdev enp1s0nl8p13 flavour physical lc 8 port 13 splittable true lanes 4 pci/0000:01:00.0/126: type eth netdev enp1s0nl8p14 flavour physical lc 8 port 14 splittable true lanes 4 pci/0000:01:00.0/127: type eth netdev enp1s0nl8p15 flavour physical lc 8 port 15 splittable true lanes 4 pci/0000:01:00.0/128: type eth netdev enp1s0nl8p16 flavour physical lc 8 port 16 splittable true lanes 4 To uprovision the slot #8: $ devlink lc set pci/0000:01:00.0 lc 8 notype ==================== Signed-off-by: -
Jiri Pirko authored
Introduce basic line card manipulation which consists of provisioning, unprovisioning and activation of a line card. Signed-off-by:
Jiri Pirko <jiri@nvidia.com> Signed-off-by:
Ido Schimmel <idosch@nvidia.com> Signed-off-by:
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Jiri Pirko authored
For each port get slot_index using PMLP register. For ports residing on a linecard, identify it with the linecard by setting mapping using devlink_port_linecard_set() helper. Use linecard slot index for PMTDB register queries. Signed-off-by:
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Jiri Pirko authored
In case of line card implementation, the core has to have a way to remove relevant ports manually. Extend the Spectrum driver ops by an op that implements port removal of selected ports upon request. Signed-off-by:
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Jiri Pirko authored
Allow to process events generated upon line card getting "ready" and "active". When DSDSC event with "ready" bit set is delivered, that means the line card is powered up. Use MDDC register to push the line card to active state. Once FW is done with that, the DSDSC event with "active" bit set is delivered. Signed-off-by:
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Jiri Pirko authored
Introduce objects for line cards and an infrastructure around that. Use devlink_linecard_create/destroy() to register the line card with devlink core. Implement provisioning ops with a list of supported line cards. Signed-off-by:
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Jiri Pirko authored
The MBCT register allows to transfer binary INI codes from the host to the management FW by transferring it by chunks of maximum 1KB. Signed-off-by:
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Jiri Pirko authored
The MDDC register allows to control downstream devices and line cards. Signed-off-by:
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Jiri Pirko authored
The MDDQ register allows to query the DownStream device properties. Signed-off-by:
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Jiri Pirko authored
Register PMLPE trap and process the port mapping changes delivered by it by creating related ports. Note that this happens after provisioning. The INI of the linecard is processed and merged by FW. PMLPE is generated for each port. Process this mapping change. Layout of PMLPE is the same as layout of PMLP. Signed-off-by:
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Jiri Pirko authored
No need to hold the lock for alloc and freecpu. So narrow the critical section. Follow-up patch is going to benefit from this by adding more code to the functions which will be out of the critical as well. Signed-off-by:
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Jiri Pirko authored
The PMECR register is used to enable/disable event triggering in case of local port mapping change. Signed-off-by:
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Jiri Pirko authored
Instead of array of pointers to port mapping structures, allocate the array of structures directly. Signed-off-by:
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Jiri Pirko authored
So far, the lane index always started from zero. That is not true for modular systems with gearbox-equipped linecards. Loose the check so the lanes can start from non-zero index. Signed-off-by:
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Jiri Pirko authored
In order to properly inform user about relationship between port and line card, introduce a driver API to set line card for a port. Use this information to extend port devlink netlink message by line card index and also include the line card index into phys_port_name and by that into a netdevice name. Signed-off-by:
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Jiri Pirko authored
Allow driver to mark a line card as active. Expose this state to the userspace over devlink netlink interface with proper notifications. 'active' state means that line card was plugged in after being provisioned. Signed-off-by:
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Jiri Pirko authored
In order to be able to configure all needed stuff on a port/netdevice of a line card without the line card being present, introduce line card provisioning. Basically by setting a type, provisioning process will start and driver is supposed to create a placeholder for instances (ports/netdevices) for a line card type. Allow the user to query the supported line card types over line card get command. Then implement two netlink command SET to allow user to set/unset the card type. On the driver API side, add provision/unprovision ops and supported types array to be advertised. Upon provision op call, the driver should take care of creating the instances for the particular line card type. Introduce provision_set/clear() functions to be called by the driver once the provisioning/unprovisioning is done on its side. These helpers are not to be called directly due to the async nature of provisioning. Example: $ devlink port # No ports are listed $ devlink lc pci/0000:01:00.0: lc 1 state unprovisioned supported_types: 16x100G lc 2 state unprovisioned supported_types: 16x100G lc 3 state unprovisioned supported_types: 16x100G lc 4 state unprovisioned supported_types: 16x100G lc 5 state unprovisioned supported_types: 16x100G lc 6 state unprovisioned supported_types: 16x100G lc 7 state unprovisioned supported_types: 16x100G lc 8 state unprovisioned supported_types: 16x100G $ devlink lc set pci/0000:01:00.0 lc 8 type 16x100G $ devlink lc show pci/0000:01:00.0 lc 8 pci/0000:01:00.0: lc 8 state active type 16x100G supported_types: 16x100G $ devlink port pci/0000:01:00.0/0: type notset flavour cpu port 0 splittable false pci/0000:01:00.0/53: type eth netdev enp1s0nl8p1 flavour physical lc 8 port 1 splittable true lanes 4 pci/0000:01:00.0/54: type eth netdev enp1s0nl8p2 flavour physical lc 8 port 2 splittable true lanes 4 pci/0000:01:00.0/55: type eth netdev enp1s0nl8p3 flavour physical lc 8 port 3 splittable true lanes 4 pci/0000:01:00.0/56: type eth netdev enp1s0nl8p4 flavour physical lc 8 port 4 splittable true lanes 4 pci/0000:01:00.0/57: type eth netdev enp1s0nl8p5 flavour physical lc 8 port 5 splittable true lanes 4 pci/0000:01:00.0/58: type eth netdev enp1s0nl8p6 flavour physical lc 8 port 6 splittable true lanes 4 pci/0000:01:00.0/59: type eth netdev enp1s0nl8p7 flavour physical lc 8 port 7 splittable true lanes 4 pci/0000:01:00.0/60: type eth netdev enp1s0nl8p8 flavour physical lc 8 port 8 splittable true lanes 4 pci/0000:01:00.0/61: type eth netdev enp1s0nl8p9 flavour physical lc 8 port 9 splittable true lanes 4 pci/0000:01:00.0/62: type eth netdev enp1s0nl8p10 flavour physical lc 8 port 10 splittable true lanes 4 pci/0000:01:00.0/63: type eth netdev enp1s0nl8p11 flavour physical lc 8 port 11 splittable true lanes 4 pci/0000:01:00.0/64: type eth netdev enp1s0nl8p12 flavour physical lc 8 port 12 splittable true lanes 4 pci/0000:01:00.0/125: type eth netdev enp1s0nl8p13 flavour physical lc 8 port 13 splittable true lanes 4 pci/0000:01:00.0/126: type eth netdev enp1s0nl8p14 flavour physical lc 8 port 14 splittable true lanes 4 pci/0000:01:00.0/127: type eth netdev enp1s0nl8p15 flavour physical lc 8 port 15 splittable true lanes 4 pci/0000:01:00.0/128: type eth netdev enp1s0nl8p16 flavour physical lc 8 port 16 splittable true lanes 4 $ devlink lc set pci/0000:01:00.0 lc 8 notype Signed-off-by: -
Jiri Pirko authored
Extend the devlink API so the driver is going to be able to create and destroy linecard instances. There can be multiple line cards per devlink device. Expose this new type of object over devlink netlink API to the userspace, with notifications. Signed-off-by:
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Eric Dumazet authored
Kernel test robot reported: smatch warnings: net/ipv4/tcp_input.c:5966 tcp_rcv_established() warn: unsigned 'reason' is never less than zero. I actually had one packetdrill failing because of this bug, and was about to send the fix :) v2: Andreas Schwab also pointed out that @reason needs to be negated before we reach tcp_drop_reason() Fixes: 4b506af9 ("tcp: add two drop reasons for tcp_ack()") Signed-off-by:kernel test robot <lkp@intel.com> Reported-by:
Andreas Schwab <schwab@linux-m68k.org> Signed-off-by:
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- 17 Apr, 2022 13 commits
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David S. Miller authored
Eric Dumazet says: ==================== tcp: drop reason additions Currently, TCP is either missing drop reasons, or pretending that some useful packets are dropped. This patch series makes "perf record -a -e skb:kfree_skb" much more usable. ==================== Signed-off-by: -
Eric Dumazet authored
packets in OFO queue might be redundant, and dropped. tcp_drop() is no longer needed. Signed-off-by:
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Eric Dumazet authored
Re-use existing reasons. Signed-off-by:
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Eric Dumazet authored
1) A valid RST packet should be consumed, to not confuse drop monitor. 2) Same remark for packet validating cross syn setup, even if we might ignore part of it. 3) When third packet of 3WHS is delayed, do not pretend the SYNACK was dropped. Signed-off-by:
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Eric Dumazet authored
Add one reason for packets dropped from OFO queue because of memory pressure. Signed-off-by:
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Eric Dumazet authored
Add TCP_TOO_OLD_ACK and TCP_ACK_UNSENT_DATA drop reasons so that tcp_rcv_established() can report them. Signed-off-by:
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Eric Dumazet authored
Add basic support for drop reasons in tcp_rcv_state_process() Signed-off-by:
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Eric Dumazet authored
tcp_rcv_state_process() incorrectly drops packets instead of consuming it, making drop monitor very noisy, if not unusable. Calling tcp_time_wait() or tcp_done() is part of standard behavior, packets triggering these actions were not dropped. Signed-off-by:
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Eric Dumazet authored
Creates four new drop reasons for the following cases: 1) packet being rejected by RFC 7323 PAWS check 2) packet being rejected by SEQUENCE check 3) Invalid RST packet 4) Invalid SYN packet Signed-off-by:
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Eric Dumazet authored
Small cleanup in tcp_validate_incoming(), no need for rst_seq_match setting and testing. Signed-off-by:
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Eric Dumazet authored
Whenever tcp_validate_incoming() handles a valid RST packet, we should not pretend the packet was dropped. Create a special section at the end of tcp_validate_incoming() to handle this case. Signed-off-by:
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David S. Miller authored
Ansuel Smith says: ==================== net: Reduce qca8k_priv space usage These 6 patch is a first attempt at reducting qca8k_priv space. The code changed a lot during times and we have many old logic that can be replaced with new implementation The first patch drop the tracking of MTU. We mimic what was done for mtk and we change MTU only when CPU port is changed. The second patch finally drop a piece of story of this driver. The ar8xxx_port_status struct was used by the first implementation of this driver to put all sort of status data for the port... With the evolution of DSA all that stuff got dropped till only the enabled state was the only part of the that struct. Since it's overkill to keep an array of int, we convert the variable to a simple u8 where we store the status of each port. This is needed to don't reanable ports on system resume. The third patch is a preparation for patch 4. As Vladimir explained in another patch, we waste a tons of space by keeping a duplicate of the switch dsa ops in qca8k_priv. The only reason for this is to dynamically set the correct mdiobus configuration (a legacy dsa one, or a custom dedicated one) To solve this problem, we just drop the phy_read/phy_write and we declare a custom mdiobus in any case. This way we can use a static dsa switch ops struct and we can drop it from qca8k_priv Patch 4 drop the duplicated dsa_switch_ops. Patch 5 is a fixup for mdio read error. Patch 6 is an effort to standardize how bus name are done. This series is just a start of more cleanup. The idea is to move this driver to the qca dir and split common code from specific code. Also the mgmt eth code still requires some love and can totally be optimized by recycling the same skb over time. Also while working on the MTU it was notice some problem with the stmmac driver and with the reloading phase that cause all sort of problems with qca8k. I'm sending this here just to try to keep small series instead of proposing monster series hard to review. v2: - Rework MTU patch v3: - Drop unrealated changes from patch 3 - Add fixup patch for mdio read - Unify bus name for legacy and OF mdio bus ==================== Signed-off-by: -
Ansuel Smith authored
Add support for multiple switch with OF mdio bus declaration. Unify the bus id naming and use the same logic for both legacy and OF mdio bus. Signed-off-by:
Ansuel Smith <ansuelsmth@gmail.com> Signed-off-by:
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