- 01 Jun, 2020 40 commits
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David S. Miller authored
Ayush Sawal says: ==================== Fixing compilation warnings and errors Patch 1: Fixes the warnings seen when compiling using sparse tool. Patch 2: Fixes a cocci check error introduced after commit 567be3a5 ("crypto: chelsio - Use multiple txq/rxq per tfm to process the requests"). V1->V2 patch1: Avoid type casting by using get_unaligned_be32() and put_unaligned_be16/32() functions. patch2: Modified subject of the patch. ==================== Signed-off-by:
David S. Miller <davem@davemloft.net>
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Ayush Sawal authored
This fixes an error observed after running coccinile check. drivers/crypto/chelsio/chcr_algo.c:1462:5-8: Unneeded variable: "err". Return "0" on line 1480 This line is missed in the commit 567be3a5 ("crypto: chelsio - Use multiple txq/rxq per tfm to process the requests"). Fixes: 567be3a5 ("crypto: chelsio - Use multiple txq/rxq per tfm to process the requests"). V1->V2 -Modified subject. Signed-off-by:
Ayush Sawal <ayush.sawal@chelsio.com> Signed-off-by:
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Ayush Sawal authored
This patch fixes the compilation warnings displayed by sparse tool for chcr driver. V1->V2 Avoid type casting by using get_unaligned_be32() and put_unaligned_be16/32() functions. The key which comes from stack is an u8 byte stream so we store it in an unsigned char array(ablkctx->key). The function get_aes_decrypt_key() is a used to calculate the reverse round key for decryption, for this operation the key has to be divided into 4 bytes, so to extract 4 bytes from an u8 byte stream and store it in an u32 variable, get_aligned_be32() is used. Similarly for copying back the key from u32 variable to the original u8 key stream, put_aligned_be32() is used. Signed-off-by:
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Rohit Maheshwari authored
Error messages seen while building kernel with CONFIG_IPV6 disabled. Signed-off-by:
Rohit Maheshwari <rohitm@chelsio.com> Signed-off-by:
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Rohit Maheshwari authored
Current design enables ktls setting from start, which is not efficient. Now the feature will be enabled when user demands TLS offload on any interface. v1->v2: - taking ULD module refcount till any single connection exists. - taking rtnl_lock() before clearing tls_devops. v2->v3: - cxgb4 is now registering to tlsdev_ops. - module refcount inc/dec in chcr. - refcount is only for connections. - removed new code from cxgb_set_feature(). v3->v4: - fixed warning message. Signed-off-by:
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Hangbin Liu authored
Socket option IPV6_ADDRFORM supports UDP/UDPLITE and TCP at present. Previously the checking logic looks like: if (sk->sk_protocol == IPPROTO_UDP || sk->sk_protocol == IPPROTO_UDPLITE) do_some_check; else if (sk->sk_protocol != IPPROTO_TCP) break; After commit b6f61189 ("ipv6: restrict IPV6_ADDRFORM operation"), TCP was blocked as the logic changed to: if (sk->sk_protocol == IPPROTO_UDP || sk->sk_protocol == IPPROTO_UDPLITE) do_some_check; else if (sk->sk_protocol == IPPROTO_TCP) do_some_check; break; else break; Then after commit 82c9ae44 ("ipv6: fix restrict IPV6_ADDRFORM operation") UDP/UDPLITE were blocked as the logic changed to: if (sk->sk_protocol == IPPROTO_UDP || sk->sk_protocol == IPPROTO_UDPLITE) do_some_check; if (sk->sk_protocol == IPPROTO_TCP) do_some_check; if (sk->sk_protocol != IPPROTO_TCP) break; Fix it by using Eric's code and simply remove the break in TCP check, which looks like: if (sk->sk_protocol == IPPROTO_UDP || sk->sk_protocol == IPPROTO_UDPLITE) do_some_check; else if (sk->sk_protocol == IPPROTO_TCP) do_some_check; else break; Fixes: 82c9ae44 ("ipv6: fix restrict IPV6_ADDRFORM operation") Signed-off-by:
Hangbin Liu <liuhangbin@gmail.com> Signed-off-by:
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YueHaibing authored
tipc_sendstream() may send zero length packet, then tipc_msg_append() do not alloc skb, skb_peek_tail() will get NULL, msg_set_ack_required will trigger NULL pointer dereference. Reported-by: syzbot+8eac6d030e7807c21d32@syzkaller.appspotmail.com Fixes: 0a3e060f ("tipc: add test for Nagle algorithm effectiveness") Signed-off-by:
YueHaibing <yuehaibing@huawei.com> Signed-off-by:
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Vladimir Oltean authored
Newer C compilers are complaining about the fact that there are no function prototypes in sja1105_vl.c for the non-static functions. Give them what they want. Signed-off-by:
Vladimir Oltean <vladimir.oltean@nxp.com> Reviewed-by:
Florian Fainelli <f.fainelli@gmail.com> Signed-off-by:
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git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/next-queueDavid S. Miller authored
Jeff Kirsher says: ==================== 100GbE Intel Wired LAN Driver Updates 2020-05-31 This series contains updates to the ice driver only. Brett modifies the driver to allow users to clear a VF's administratively set MAC address on the PF. Fixes the driver to recognize an existing VLAN tag when DMAC/SMAC is enabled in a packet. Fixes an issue, so that VF's are reset after any VF port VLAN modifications are made on the PF. Made sure the register QRXFLXP_CNTXT is cleared before writing a new value to ensure the previous value is not passed forward. Updates the PF to allow the VF to request a reset as soon as it has been initialized. Fixes an issue to ensure when a VSI is created, it uses the current coalesce value, not the default value. Paul allows untrusted VF's to add 16 filters. Dan increases the timeout needed after a PFR to allow ample time for package download. Chinh adjust the define value for the number of PHY speeds we currently support. Changes the driver to ignore EMODE error when configuring the PHY. Jesse fixes an issue which was preventing a user from configuring the interface before bringing it up. Henry fixes the logic for adding back perfect flows after flow director filter does a deletion. Bruce fixes line wrappings to make it more consistent. ==================== Signed-off-by: -
Roopa Prabhu authored
fix dereference of nexthop group in fdb nexthop group update validation path. Fixes: 1274e1cc ("vxlan: ecmp support for mac fdb entries") Reported-by:
Ido Schimmel <idosch@idosch.org> Suggested-by:
Roopa Prabhu <roopa@cumulusnetworks.com> Signed-off-by:
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Al Viro authored
no point getting compat_cmsghdr field-by-field Signed-off-by:
Al Viro <viro@zeniv.linux.org.uk> Signed-off-by:
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David S. Miller authored
Ioana Ciornei says: ==================== dpaa2-eth: add PFC support This patch set adds support for Priority Flow Control in DPAA2 Ethernet devices. The first patch make the necessary changes so that multiple traffic classes are configured. The dequeue priority of the maximum 8 traffic classes is configured to be equal. The second patch adds a static distribution to said traffic classes based on the VLAN PCP field. In the future, this could be extended through the .setapp() DCB callback for dynamic configuration. Also, add support for the congestion group taildrop mechanism that allows us to control the number of frames that can accumulate on a group of Rx frame queues belonging to the same traffic class. The basic subset of the DCB ops is implemented so that the user can query the number of PFC capable traffic classes, their state and reconfigure them if necessary. Changes in v3: - add patches 6-7 which add the PFC functionality - patch 2/7: revert to explicitly cast mask to u16 * to not get into sparse warnings Changes in v4: - really fix the sparse warnings in 2/7 ==================== Signed-off-by: -
Ioana Ciornei authored
Leave congestion group taildrop enabled for all traffic classes when PFC is enabled. Notification threshold is low enough such that it will be hit first and this also ensures that FQs on traffic classes which are not PFC enabled won't drain the buffer pool. FQ taildrop threshold is kept disabled as long as any form of flow control is on. Since FQ taildrop works with bytes, not number of frames, we can't guarantee it will not interfere with the congestion notification mechanism for all frame sizes. Signed-off-by:
Ioana Ciornei <ioana.ciornei@nxp.com> Signed-off-by:
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Ioana Ciornei authored
Add support in dpaa2-eth for PFC (Priority Flow Control) through the DCB ops. Instruct the hardware to respond to received PFC frames. Current firmware doesn't allow us to selectively enable PFC on the Rx side for some priorities only, so we will react to all incoming PFC frames (and stop transmitting on the traffic classes specified in the frame). Also, configure the hardware to generate PFC frames based on Rx congestion notifications. When a certain number of frames accumulate in the ingress queues corresponding to a traffic class, priority flow control frames are generated for that TC. The number of PFC traffic classes available can be queried through lldptool. Also, which of those traffic classes have PFC enabled is also controlled through the same dcbnl_rtnl_ops callbacks. Signed-off-by:
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Ioana Radulescu authored
Now that we have congestion group taildrop configured at all times, we can afford to increase the frame queue taildrop threshold; this will ensure a better response when receiving bursts of large-sized frames. Also decouple the buffer pool count from the Rx FQ taildrop threshold, as above change would increase it too much. Instead, keep the old count as a hardcoded value. With the new limits, we try to ensure that: * we allow enough leeway for large frame bursts (by buffering enough of them in queues to avoid heavy dropping in case of bursty traffic, but when overall ingress bandwidth is manageable) * allow pending frames to be evenly spread between ingress FQs, regardless of frame size * avoid dropping frames due to the buffer pool being empty; this is not a bad behaviour per se, but system overall response is more linear and predictable when frames are dropped at frame queue/group level. Signed-off-by:
Ioana Radulescu <ruxandra.radulescu@nxp.com> Signed-off-by:
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Ioana Radulescu authored
The increase in number of ingress frame queues means we now risk depleting the buffer pool before the FQ taildrop kicks in. Congestion group taildrop allows us to control the number of frames that can accumulate on a group of Rx frame queues belonging to the same traffic class. This setting coexists with the frame queue based taildrop: whichever limit gets hit first triggers the frame drop. Signed-off-by:
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Ioana Radulescu authored
Add convenient helper functions that determines whether Rx/Tx pause frames are enabled based on link state flags received from firmware. Signed-off-by:
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Ioana Radulescu authored
Configure static ingress classification based on VLAN PCP field. If the DPNI doesn't have enough traffic classes to accommodate all priority levels, the lowest ones end up on TC 0 (default on miss). Signed-off-by:
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Ioana Radulescu authored
The firmware reserves for each DPNI a number of RX frame queues equal to the number of configured flows x number of configured traffic classes. Current driver configuration directs all incoming traffic to FQs corresponding to TC0, leaving all other priority levels unused. Start adding support for multiple ingress traffic classes, by configuring the FQs associated with all priority levels, not just TC0. All settings that are per-TC, such as those related to hashing and flow steering, are also updated. Signed-off-by:
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Michael Walle authored
Don't export __bcm_phy_enable_rdb_access() and __bcm_phy_enable_legacy_access() functions. They aren't used outside this module and it was forgotten to provide a prototype for these functions. Just make them static for now. Fixes: 11ecf8c5 ("net: phy: broadcom: add cable test support") Reported-by:
kbuild test robot <lkp@intel.com> Signed-off-by:
Michael Walle <michael@walle.cc> Reviewed-by:
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Willem de Bruijn authored
Tun in IFF_NAPI_FRAGS mode calls napi_gro_frags. Unlike netif_rx and netif_gro_receive, this expects skb->data to point to the mac layer. But skb_probe_transport_header, __skb_get_hash_symmetric, and xdp_do_generic in tun_get_user need skb->data to point to the network header. Flow dissection also needs skb->protocol set, so eth_type_trans has to be called. Ensure the link layer header lies in linear as eth_type_trans pulls ETH_HLEN. Then take the same code paths for frags as for not frags. Push the link layer header back just before calling napi_gro_frags. By pulling up to ETH_HLEN from frag0 into linear, this disables the frag0 optimization in the special case when IFF_NAPI_FRAGS is used with zero length iov[0] (and thus empty skb->linear). Fixes: 90e33d45 ("tun: enable napi_gro_frags() for TUN/TAP driver") Signed-off-by:
Willem de Bruijn <willemb@google.com> Acked-by:
Petar Penkov <ppenkov@google.com> Signed-off-by:
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Guillaume Nault authored
Compiling with W=1 gives the following warning: net/sched/cls_flower.c:731:1: warning: ‘mpls_opts_policy’ defined but not used [-Wunused-const-variable=] The TCA_FLOWER_KEY_MPLS_OPTS contains a list of TCA_FLOWER_KEY_MPLS_OPTS_LSE. Therefore, the attributes all have the same type and we can't parse the list with nla_parse*() and have the attributes validated automatically using an nla_policy. fl_set_key_mpls_opts() properly verifies that all attributes in the list are TCA_FLOWER_KEY_MPLS_OPTS_LSE. Then fl_set_key_mpls_lse() uses nla_parse_nested() on all these attributes, thus verifying that they have the NLA_F_NESTED flag. So we can safely drop the mpls_opts_policy. Reported-by:
Guillaume Nault <gnault@redhat.com> Signed-off-by:
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David S. Miller authored
Horatiu Vultur says: ==================== bridge: mrp: Add support for MRA role This patch series extends the MRP with the MRA role. A node that has the MRA role can behave as a MRM or as a MRC. In case there are multiple nodes in the topology that has the MRA role then only one node can behave as MRM and all the others need to be have as MRC. The node that has the higher priority(lower value) will behave as MRM. A node that has the MRA role and behaves as MRC, it just needs to forward the MRP_Test frames between the ring ports but also it needs to detect in case it stops receiving MRP_Test frames. In that case it would try to behave as MRM. v2: - add new patch that fixes sparse warnings - fix parsing of prio attribute ==================== Signed-off-by: -
Horatiu Vultur authored
A node that has the MRA role, it can behave as MRM or MRC. Initially it starts as MRM and sends MRP_Test frames on both ring ports. If it detects that there are MRP_Test send by another MRM, then it checks if these frames have a lower priority than itself. In this case it would send MRP_Nack frames to notify the other node that it needs to stop sending MRP_Test frames. If it receives a MRP_Nack frame then it stops sending MRP_Test frames and starts to behave as a MRC but it would continue to monitor the MRP_Test frames send by MRM. If at a point the MRM stops to send MRP_Test frames it would get the MRM role and start to send MRP_Test frames. Signed-off-by:
Horatiu Vultur <horatiu.vultur@microchip.com> Signed-off-by:
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Horatiu Vultur authored
Each MRP instance has a priority, a lower value means a higher priority. The priority of MRP instance is stored in MRP_Test frame in this way all the MRP nodes in the ring can see other nodes priority. Signed-off-by:
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Horatiu Vultur authored
Replace u16/u32 with be16/be32 in the MRP frame types. This fixes sparse warnings like: warning: cast to restricted __be16 Signed-off-by:
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Jia-Ju Bai authored
The value adapter->rss_conf is stored in DMA memory, and it is assigned to rssConf, so rssConf->indTableSize can be modified at anytime by malicious hardware. Because rssConf->indTableSize is assigned to n, buffer overflow may occur when the code "rssConf->indTable[n]" is executed. To fix this possible bug, n is checked after being used. Signed-off-by:
Jia-Ju Bai <baijiaju1990@gmail.com> Signed-off-by:
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Arnd Bergmann authored
The fl_flow_key structure is around 500 bytes, so having two of them on the stack in one function now exceeds the warning limit after an otherwise correct change: net/sched/cls_flower.c:298:12: error: stack frame size of 1056 bytes in function 'fl_classify' [-Werror,-Wframe-larger-than=] I suspect the fl_classify function could be reworked to only have one of them on the stack and modify it in place, but I could not work out how to do that. As a somewhat hacky workaround, move one of them into an out-of-line function to reduce its scope. This does not necessarily reduce the stack usage of the outer function, but at least the second copy is removed from the stack during most of it and does not add up to whatever is called from there. I now see 552 bytes of stack usage for fl_classify(), plus 528 bytes for fl_mask_lookup(). Fixes: 58cff782 ("flow_dissector: Parse multiple MPLS Label Stack Entries") Signed-off-by:
Arnd Bergmann <arnd@arndb.de> Acked-by:
Cong Wang <xiyou.wangcong@gmail.com> Acked-by:
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Roelof Berg authored
Microchip lan7431 is frequently connected to a phy. However, it can also be directly connected to a MII remote peer without any phy in between. For supporting such a phyless hardware setup in Linux we utilized phylib, which supports a fixed-link configuration via the device tree. And we added support for defining the connection type R/GMII in the device tree. New behavior: ------------- . The automatic speed and duplex detection of the lan743x silicon between mac and phy is disabled. Instead phylib is used like in other typical Linux drivers. The usage of phylib allows to specify fixed-link parameters in the device tree. . The device tree entry phy-connection-type is supported now with the modes RGMII or (G)MII (default). Development state: ------------------ . Tested with fixed-phy configurations. Not yet tested in normal configurations with phy. Microchip kindly offered testing as soon as the Corona measures allow this. . All review findings of Andrew Lunn are included Example: -------- &pcie { status = "okay"; host@0 { reg = <0 0 0 0 0>; #address-cells = <3>; #size-cells = <2>; ethernet@0 { compatible = "weyland-yutani,noscom1", "microchip,lan743x"; status = "okay"; reg = <0 0 0 0 0>; phy-connection-type = "rgmii"; fixed-link { speed = <100>; full-duplex; }; }; }; }; Signed-off-by:Roelof Berg <rberg@berg-solutions.de> Signed-off-by:
Andrew Lunn <andrew@lunn.ch> Signed-off-by:
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David S. Miller authored
Ido Schimmel says: ==================== devlink: Add support for control packet traps So far device drivers were only able to register drop and exception packet traps with devlink. These traps are used for packets that were either dropped by the underlying device or encountered an exception (e.g., missing neighbour entry) during forwarding. However, in the steady state, the majority of the packets being trapped to the CPU are packets that are required for the correct functioning of the control plane. For example, ARP request and IGMP query packets. This patch set allows device drivers to register such control traps with devlink and expose their default control plane policy to user space. User space can then tune the packet trap policer settings according to its needs, as with existing packet traps. In a similar fashion to exception traps, the action associated with such traps cannot be changed as it can easily break the control plane. Unlike drop and exception traps, packets trapped via control traps are not reported to the kernel's drop monitor as they are not indicative of any problem. Patch set overview: Patches #1-#3 break out layer 3 exceptions to a different group to provide better granularity. A future patch set will make this completely configurable. Patch #4 adds a new trap action ('mirror') that is used for packets that are forwarded by the device and sent to the CPU. Such packets are marked by device drivers with 'skb->offload_fwd_mark = 1' in order to prevent the kernel from forwarding them again. Patch #5 adds the new trap type, 'control'. Patches #6-#8 gradually add various control traps to devlink with proper documentation. Patch #9 adds a few control traps to netdevsim, which are automatically exercised by existing devlink-trap selftest. Patches #10 performs small refactoring in mlxsw. Patches #11-#13 change mlxsw to register its existing control traps with devlink. Patch #14 adds a selftest over mlxsw that exercises all the registered control traps. ==================== Signed-off-by: -
Ido Schimmel authored
Generate packets matching the various control traps and check that the traps' stats increase accordingly. Signed-off-by:
Ido Schimmel <idosch@mellanox.com> Signed-off-by:
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Ido Schimmel authored
In a similar fashion to other control traps, register ACL control traps with devlink. Signed-off-by:
Jiri Pirko <jiri@mellanox.com> Signed-off-by:
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Ido Schimmel authored
In a similar fashion to layer 2 control traps, register layer 3 control traps with devlink. Signed-off-by:
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Ido Schimmel authored
In a similar fashion to other traps, register layer 2 control traps with devlink. Signed-off-by:
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Ido Schimmel authored
We currently have an Rx listener function for exception traps that marks received skbs with 'offload_fwd_mark' and injects them to the kernel's Rx path. The marking is done because all these exceptions occur during L3 forwarding, after the packets were potentially flooded at L2. A subsequent patch will add support for control traps. Packets received via some of these control traps need different handling: 1. Packets might not need to be marked with 'offload_fwd_mark'. For example, if packet was trapped before L2 forwarding 2. Packets might not need to be injected to the kernel's Rx path. For example, sampled packets are reported to user space via the psample module Factor out a common Rx listener function that only reports trapped packets to devlink. Call it from mlxsw_sp_rx_no_mark_listener() and mlxsw_sp_rx_mark_listener() that will inject the packets to the kernel's Rx path, without and with the marking, respectively. Signed-off-by:
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Ido Schimmel authored
Register two control traps with devlink. The existing selftest at tools/testing/selftests/drivers/net/netdevsim/devlink_trap.sh iterates over all registered traps and checks that the action of non-drop traps cannot be changed. Up until now only exception traps were tested, now control traps will be tested as well. Signed-off-by:
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Ido Schimmel authored
Add packet traps for packets that are sampled / trapped by ACLs, so that capable drivers could register them with devlink. Add documentation for every added packet trap and packet trap group. Signed-off-by:
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Ido Schimmel authored
Add layer 3 control packet traps such as ARP and DHCP, so that capable device drivers could register them with devlink. Add documentation for every added packet trap and packet trap group. Signed-off-by:
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Ido Schimmel authored
Add layer 2 control packet traps such as STP and IGMP query, so that capable device drivers could register them with devlink. Add documentation for every added packet trap and packet trap group. Signed-off-by:
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Ido Schimmel authored
This type is used for traps that trap control packets such as ARP request and IGMP query to the CPU. Do not report such packets to the kernel's drop monitor as they were not dropped by the device no encountered an exception during forwarding. Signed-off-by:
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