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2020-06-26tc-testing: avoid action cookies with odd length.Briana Oursler3-7/+7
Update odd length cookie hexstrings in csum.json, tunnel_key.json and bpf.json to be even length to comply with check enforced in commit 0149dabf2a1b ("tc: m_actions: check cookie hexstring len") in iproute2. Signed-off-by: Briana Oursler <briana.oursler@gmail.com> Reviewed-by: Stefano Brivio <sbrivio@redhat.com> Reviewed-by: Davide Caratti <dcaratti@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-26Merge branch 'tcp_cubic-fix-spurious-HYSTART_DELAY-on-RTT-decrease'David S. Miller2-6/+4
Neal Cardwell says: ==================== tcp_cubic: fix spurious HYSTART_DELAY on RTT decrease This series fixes a long-standing bug in the TCP CUBIC HYSTART_DELAY mechanim recently reported by Mirja Kuehlewind. The code can cause a spurious exit of slow start in some particular cases: upon an RTT decrease that happens on the 9th or later ACK in a round trip. This series fixes the original Hystart code and also the recent BPF implementation. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-26bpf: tcp: bpf_cubic: fix spurious HYSTART_DELAY exit upon drop in min RTTNeal Cardwell1-3/+2
Apply the fix from: "tcp_cubic: fix spurious HYSTART_DELAY exit upon drop in min RTT" to the BPF implementation of TCP CUBIC congestion control. Repeating the commit description here for completeness: Mirja Kuehlewind reported a bug in Linux TCP CUBIC Hystart, where Hystart HYSTART_DELAY mechanism can exit Slow Start spuriously on an ACK when the minimum rtt of a connection goes down. From inspection it is clear from the existing code that this could happen in an example like the following: o The first 8 RTT samples in a round trip are 150ms, resulting in a curr_rtt of 150ms and a delay_min of 150ms. o The 9th RTT sample is 100ms. The curr_rtt does not change after the first 8 samples, so curr_rtt remains 150ms. But delay_min can be lowered at any time, so delay_min falls to 100ms. The code executes the HYSTART_DELAY comparison between curr_rtt of 150ms and delay_min of 100ms, and the curr_rtt is declared far enough above delay_min to force a (spurious) exit of Slow start. The fix here is simple: allow every RTT sample in a round trip to lower the curr_rtt. Fixes: 6de4a9c430b5 ("bpf: tcp: Add bpf_cubic example") Reported-by: Mirja Kuehlewind <mirja.kuehlewind@ericsson.com> Signed-off-by: Neal Cardwell <ncardwell@google.com> Signed-off-by: Eric Dumazet <edumazet@google.com> Acked-by: Soheil Hassas Yeganeh <soheil@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-26tcp_cubic: fix spurious HYSTART_DELAY exit upon drop in min RTTNeal Cardwell1-3/+2
Mirja Kuehlewind reported a bug in Linux TCP CUBIC Hystart, where Hystart HYSTART_DELAY mechanism can exit Slow Start spuriously on an ACK when the minimum rtt of a connection goes down. From inspection it is clear from the existing code that this could happen in an example like the following: o The first 8 RTT samples in a round trip are 150ms, resulting in a curr_rtt of 150ms and a delay_min of 150ms. o The 9th RTT sample is 100ms. The curr_rtt does not change after the first 8 samples, so curr_rtt remains 150ms. But delay_min can be lowered at any time, so delay_min falls to 100ms. The code executes the HYSTART_DELAY comparison between curr_rtt of 150ms and delay_min of 100ms, and the curr_rtt is declared far enough above delay_min to force a (spurious) exit of Slow start. The fix here is simple: allow every RTT sample in a round trip to lower the curr_rtt. Fixes: ae27e98a5152 ("[TCP] CUBIC v2.3") Reported-by: Mirja Kuehlewind <mirja.kuehlewind@ericsson.com> Signed-off-by: Neal Cardwell <ncardwell@google.com> Signed-off-by: Eric Dumazet <edumazet@google.com> Acked-by: Soheil Hassas Yeganeh <soheil@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-26Merge branch 'Fixes-for-SJA1105-DSA-tc-gate-action'David S. Miller1-160/+167
Vladimir Oltean says: ==================== Fixes for SJA1105 DSA tc-gate action This small series fixes 2 bugs in the tc-gate implementation: 1. The TAS state machine keeps getting rescheduled even after removing tc-gate actions on all ports. 2. tc-gate actions with only one gate control list entry are installed to hardware with an incorrect interval of zero, which makes the switch erroneously drop those packets (since the configuration is invalid). To keep the code palatable, a forward-declaration was avoided by moving some code around in patch 1/4. I hope that isn't too much of an issue. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-26net: dsa: sja1105: fix tc-gate schedule with single elementVladimir Oltean1-2/+1
The sja1105_gating_cfg_time_to_interval function does this, as per the comments: /* The gate entries contain absolute times in their e->interval field. Convert * that to proper intervals (i.e. "0, 5, 10, 15" to "5, 5, 5, 5"). */ To perform that task, it iterates over gating_cfg->entries, at each step updating the interval of the _previous_ entry. So one interval remains to be updated at the end of the loop: the last one (since it isn't "prev" for anyone else). But there was an erroneous check, that the last element's interval should not be updated if it's also the only element. I'm not quite sure why that check was there, but it's clearly incorrect, as a tc-gate schedule with a single element would get an e->interval of zero, regardless of the duration requested by the user. The switch wouldn't even consider this configuration as valid: it will just drop all traffic that matches the rule. Fixes: 834f8933d5dd ("net: dsa: sja1105: implement tc-gate using time-triggered virtual links") Reported-by: Xiaoliang Yang <xiaoliang.yang_1@nxp.com> Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-26net: dsa: sja1105: recalculate gating subschedule after deleting tc-gate rulesVladimir Oltean1-0/+8
Currently, tas_data->enabled would remain true even after deleting all tc-gate rules from the switch ports, which would cause the sja1105_tas_state_machine to get unnecessarily scheduled. Also, if there were any errors which would prevent the hardware from enabling the gating schedule, the sja1105_tas_state_machine would continuously detect and print that, spamming the kernel log, even if the rules were subsequently deleted. The rules themselves are _not_ active, because sja1105_init_scheduling does enough of a job to not install the gating schedule in the static config. But the virtual link rules themselves are still present. So call the functions that remove the tc-gate configuration from priv->tas_data.gating_cfg, so that tas_data->enabled can be set to false, and sja1105_tas_state_machine will stop from being scheduled. Fixes: 834f8933d5dd ("net: dsa: sja1105: implement tc-gate using time-triggered virtual links") Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-26net: dsa: sja1105: unconditionally free old gating configVladimir Oltean1-2/+2
Currently sja1105_compose_gating_subschedule is not prepared to be called for the case where we want to recompute the global tc-gate configuration after we've deleted those actions on a port. After deleting the tc-gate actions on the last port, max_cycle_time would become zero, and that would incorrectly prevent sja1105_free_gating_config from getting called. So move the freeing function above the check for the need to apply a new configuration. Fixes: 834f8933d5dd ("net: dsa: sja1105: implement tc-gate using time-triggered virtual links") Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-26net: dsa: sja1105: move sja1105_compose_gating_subschedule at the topVladimir Oltean1-160/+160
It turns out that sja1105_compose_gating_subschedule must also be called from sja1105_vl_delete, to recalculate the overall tc-gate configuration. Currently this is not possible without introducing a forward declaration. So move the function at the top of the file, along with its dependencies. Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-26Merge branch 'RGMII-Internal-delay-common-property'David S. Miller6-14/+249
Dan Murphy says: ==================== RGMII Internal delay common property The RGMII internal delay is a common setting found in most RGMII capable PHY devices. It was found that many vendor specific device tree properties exist to do the same function. This creates a common property to be used for PHY's that have internal delays for the Rx and Tx paths. If the internal delay is tunable then the caller needs to pass the internal delay array and the return will be the index in the array that was found in the firmware node. If the internal delay is fixed then the caller only needs to indicate which delay to return. There is no need for a fixed delay to add device properties since the value is not configurable. Per the ethernet-controller.yaml the interface type indicates that the PHY should provide the delay. This series contains examples of both a configurable delay and a fixed delay. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-26net: phy: DP83822: Add setting the fixed internal delayDan Murphy1-10/+69
The DP83822 can be configured to use the RGMII interface. There are independent fixed 3.5ns clock shift (aka internal delay) for the TX and RX paths. This allow either one to be set if the MII interface is RGMII and the value is set in the firmware node. Signed-off-by: Dan Murphy <dmurphy@ti.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-26net: dp83869: Add RGMII internal delay configurationDan Murphy1-3/+50
Add RGMII internal delay configuration for Rx and Tx. Signed-off-by: Dan Murphy <dmurphy@ti.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-26dt-bindings: net: Add RGMII internal delay for DP83869Dan Murphy1-1/+15
Add the internal delay values into the header and update the binding with the internal delay properties. Signed-off-by: Dan Murphy <dmurphy@ti.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-26net: phy: Add a helper to return the index for of the internal delayDan Murphy2-0/+103
Add a helper function that will return the index in the array for the passed in internal delay value. The helper requires the array, size and delay value. The helper will then return the index for the exact match or return the index for the index to the closest smaller value. Signed-off-by: Dan Murphy <dmurphy@ti.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-26dt-bindings: net: Add tx and rx internal delaysDan Murphy1-0/+12
tx-internal-delays and rx-internal-delays are a common setting for RGMII capable devices. These properties are used when the phy-mode or phy-controller is set to rgmii-id, rgmii-rxid or rgmii-txid. These modes indicate to the controller that the PHY will add the internal delay for the connection. Signed-off-by: Dan Murphy <dmurphy@ti.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-26Merge branch 'dpaa2-eth-small-updates'David S. Miller4-6/+13
Ioana Ciornei says: ==================== dpaa2-eth: small updates This patch set adds some updates to the dpaa2-eth driver: trimming of the frame queue debugfs counters, cleanup of the remaining sparse warnings and some other small fixes such as a recursive header include. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-26dpaa2-eth: fix misspelled function parameters in dpni_[set/get]_taildropIoana Ciornei1-4/+4
Two of the function parameters (qtype and index) were misspelled in the associated descriptions of dpni_[set/get]_taildrop which led to sparse warnings. Fix this by using the exact same names as present in the function definition. Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-26dpaa2-eth: fix recursive header includeIoana Ciornei1-1/+0
The dpaa2-eth.h header file includes dpaa2-eth-trace.h which includes back dpaa2-eth leading to a recursion in the include path. Fix this by removing the include of dpaa2-eth.h in the trace header. Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-26dpaa2-eth: fix condition for number of buffer acquire retriesIoana Ciornei1-1/+1
We should keep retrying to acquire buffers through the software portals as long as the function returns -EBUSY and the number of retries is __below__ DPAA2_ETH_SWP_BUSY_RETRIES. Fixes: ef17bd7cc0c8 ("dpaa2-eth: Avoid unbounded while loops") Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-26dpaa2-eth: check the result of skb_to_sgvec()Ioana Ciornei1-0/+4
Before passing the result of skb_to_sgvec() to dma_map_sg() check if any error was returned. Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-26dpaa2-eth: trim debugfs FQ statsIoana Radulescu1-0/+4
With the addition of multiple traffic classes support, the number of available frame queues grew significantly, overly inflating the debugfs FQ statistics entry. Update it to only show the queues which are actually in use (i.e. have a non-zero frame counter). Signed-off-by: Ioana Radulescu <ruxandra.radulescu@nxp.com> Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-26net: phylink: only restart AN if the link mode is using in-band ANRussell King1-1/+2
If we are not using in-band autonegotiation, there is no point passing the request to restart autonegotiation on to the driver. Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-26net: dsa/ar9331: convert to mac_link_up()Russell King1-29/+31
Convert the ar9331 DSA driver to use the finalised link parameters in mac_link_up() rather than the parameters in mac_config(). Tested-by: Oleksij Rempel <o.rempel@pengutronix.de> Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-26net: macb: free resources on failure path of at91ether_open()Claudiu Beznea1-43/+73
DMA buffers were not freed on failure path of at91ether_open(). Along with changes for freeing the DMA buffers the enable/disable interrupt instructions were moved to at91ether_start()/at91ether_stop() functions and the operations on at91ether_stop() were done in their reverse order (compared with how is done in at91ether_start()): before this patch the operation order on interface open path was as follows: 1/ alloc DMA buffers 2/ enable tx, rx 3/ enable interrupts and the order on interface close path was as follows: 1/ disable tx, rx 2/ disable interrupts 3/ free dma buffers. Fixes: 7897b071ac3b ("net: macb: convert to phylink") Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-26net: macb: call pm_runtime_put_sync on failure pathClaudiu Beznea1-2/+6
Call pm_runtime_put_sync() on failure path of at91ether_open. Fixes: e6a41c23df0d ("net: macb: ensure interface is not suspended on at91rm9200") Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-26Merge tag 'mlx5-updates-2020-06-23' of ↵David S. Miller12-77/+50
git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux Saeed Mahameed says: ==================== mlx5 updates 2020-06-23 This series adds misc cleanup and updates to mlx5 driver. 1) Misc updates and cleanup 2) Use RCU instead of spinlock for vxlan table v1->v2: - Removed unnecessary Fixes Tags v2->v3: - Drop "macro undefine" patch, it has no value v3->v4: - Drop the Relaxed ordering patch. ==================== Reviewed-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-25Merge tag 'fsnotify_for_v5.8-rc3' of ↵Linus Torvalds1-1/+1
git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs Pull fsnotify fixlet from Jan Kara: "A performance improvement to reduce impact of fsnotify for inodes where it isn't used" * tag 'fsnotify_for_v5.8-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs: fs: Do not check if there is a fsnotify watcher on pseudo inodes
2020-06-25net: phylink: add phylink_speed_(up|down) interfaceRussell King2-0/+50
Add an interface for the phy_speed_(up|down) functions when a driver makes use of phylink. These pass the call through to phylib when we have a normal PHY attached (i.o.w., not a PHY on a SFP module.) Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-25Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nfDavid S. Miller58-16/+344
Pablo Neira Ayuso says: ==================== Netfilter fixes for net The following patchset contains Netfilter fixes for net, they are: 1) Unaligned atomic access in ipset, from Russell King. 2) Missing module description, from Rob Gill. 3) Patches to fix a module unload causing NULL pointer dereference in xtables, from David Wilder. For the record, I posting here his cover letter explaining the problem: A crash happened on ppc64le when running ltp network tests triggered by "rmmod iptable_mangle". See previous discussion in this thread: https://lists.openwall.net/netdev/2020/06/03/161 . In the crash I found in iptable_mangle_hook() that state->net->ipv4.iptable_mangle=NULL causing a NULL pointer dereference. net->ipv4.iptable_mangle is set to NULL in +iptable_mangle_net_exit() and called when ip_mangle modules is unloaded. A rmmod task was found running in the crash dump. A 2nd crash showed the same problem when running "rmmod iptable_filter" (net->ipv4.iptable_filter=NULL). To fix this I added .pre_exit hook in all iptable_foo.c. The pre_exit will un-register the underlying hook and exit would do the table freeing. The netns core does an unconditional +synchronize_rcu after the pre_exit hooks insuring no packets are in flight that have picked up the pointer before completing the un-register. These patches include changes for both iptables and ip6tables. We tested this fix with ltp running iptables01.sh and iptables01.sh -6 a loop for 72 hours. 4) Add a selftest for conntrack helper assignment, from Florian Westphal. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-25net/mlx5e: vxlan: Return bool instead of opaque ptr in port_lookup()Saeed Mahameed2-7/+7
struct mlx5_vxlan_port is not exposed to the outside callers, it is redundant to return a pointer to it from mlx5_vxlan_port_lookup(), to be only used as a boolean, so just return a boolean. Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2020-06-25net/mlx5e: vxlan: Use RCU for vxlan table lookupSaeed Mahameed1-38/+27
Remove the spinlock protecting the vxlan table and use RCU instead. This will improve performance as it will eliminate contention on data path cores. Fixes: b3f63c3d5e2c ("net/mlx5e: Add netdev support for VXLAN tunneling") Signed-off-by: Saeed Mahameed <saeedm@mellanox.com> Reviewed-by: Maxim Mikityanskiy <maximmi@mellanox.com>
2020-06-25net/mlx5e: Move TC-specific function definitions into MLX5_CLS_ACTVlad Buslov1-8/+8
en_tc.h header file declares several TC-specific functions in CONFIG_MLX5_ESWITCH block even though those functions are only compiled when CONFIG_MLX5_CLS_ACT is set, which is a recent change. Move them to proper block. Signed-off-by: Vlad Buslov <vladbu@mellanox.com> Reviewed-by: Roi Dayan <roid@mellanox.com> Reviewed-by: Maor Dickman <maord@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2020-06-25net/mlx5e: Move including net/arp.h from en_rep.c to rep/neigh.cAlaa Hleihel2-1/+1
After the cited commit, the header net/arp.h is no longer used in en_rep.c. So, move it to the new file rep/neigh.c that uses it now. Signed-off-by: Alaa Hleihel <alaa@mellanox.com> Reviewed-by: Vlad Buslov <vladbu@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2020-06-25net/mlx5e: Remove unused mlx5e_xsk_first_unused_channelMaxim Mikityanskiy2-15/+0
mlx5e_xsk_first_unused_channel is a leftover from old versions of the first XSK commit, and it was never used. Remove it. Fixes: db05815b36cb ("net/mlx5e: Add XSK zero-copy support") Signed-off-by: Maxim Mikityanskiy <maximmi@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2020-06-25net/mlx5: Use kfree(ft->g) in arfs_create_groups()Denis Efremov1-1/+1
Use kfree() instead of kvfree() on ft->g in arfs_create_groups() because the memory is allocated with kcalloc(). Signed-off-by: Denis Efremov <efremov@linux.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2020-06-25net/mlx5: FWTrace: Add missing spaceHu Haowen1-1/+1
Missing space at the end of a comment line, add it. Signed-off-by: Hu Haowen <xianfengting221@163.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2020-06-25net/mlx5: Avoid eswitch header inclusion in fs core layerParav Pandit3-11/+10
Flow steering core layer is independent of the eswitch layer. Hence avoid fs_core dependency on eswitch. Signed-off-by: Parav Pandit <parav@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2020-06-25net: bridge: enfore alignment for ethernet addressThomas Martitz1-1/+1
The eth_addr member is passed to ether_addr functions that require 2-byte alignment, therefore the member must be properly aligned to avoid unaligned accesses. The problem is in place since the initial merge of multicast to unicast: commit 6db6f0eae6052b70885562e1733896647ec1d807 bridge: multicast to unicast Fixes: 6db6f0eae605 ("bridge: multicast to unicast") Cc: Roopa Prabhu <roopa@cumulusnetworks.com> Cc: Nikolay Aleksandrov <nikolay@cumulusnetworks.com> Cc: David S. Miller <davem@davemloft.net> Cc: Jakub Kicinski <kuba@kernel.org> Cc: Felix Fietkau <nbd@nbd.name> Signed-off-by: Thomas Martitz <t.martitz@avm.de> Acked-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-25Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdmaLinus Torvalds22-124/+197
Pull rdma fixes from Jason Gunthorpe: "Several regression fixes from work that landed in the merge window, particularly in the mlx5 driver: - Various static checker and warning fixes - General bug fixes in rvt, qedr, hns, mlx5 and hfi1 - Several regression fixes related to the ECE and QP changes in last cycle - Fixes for a few long standing crashers in CMA, uverbs ioctl, and xrc" * tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: (25 commits) IB/hfi1: Add atomic triggered sleep/wakeup IB/hfi1: Correct -EBUSY handling in tx code IB/hfi1: Fix module use count flaw due to leftover module put calls IB/hfi1: Restore kfree in dummy_netdev cleanup IB/mad: Fix use after free when destroying MAD agent RDMA/mlx5: Protect from kernel crash if XRC_TGT doesn't have udata RDMA/counter: Query a counter before release RDMA/mad: Fix possible memory leak in ib_mad_post_receive_mads() RDMA/mlx5: Fix integrity enabled QP creation RDMA/mlx5: Remove ECE limitation from the RAW_PACKET QPs RDMA/mlx5: Fix remote gid value in query QP RDMA/mlx5: Don't access ib_qp fields in internal destroy QP path RDMA/core: Check that type_attrs is not NULL prior access RDMA/hns: Fix an cmd queue issue when resetting RDMA/hns: Fix a calltrace when registering MR from userspace RDMA/mlx5: Add missed RST2INIT and INIT2INIT steps during ECE handshake RDMA/cma: Protect bind_list and listen_list while finding matching cm id RDMA/qedr: Fix KASAN: use-after-free in ucma_event_handler+0x532 RDMA/efa: Set maximum pkeys device attribute RDMA/rvt: Fix potential memory leak caused by rvt_alloc_rq ...
2020-06-25ptp_pch: use generic power managementVaibhav Gupta1-34/+3
With legacy PM, drivers themselves were responsible for managing the device's power states and takes care of register states. After upgrading to the generic structure, PCI core will take care of required tasks and drivers should do only device-specific operations. In the case of ptp_pch, after removing PCI helper functions, .suspend() and .resume() became empty-body functions. Hence, define them NULL and use dev_pm_ops. Compile-tested only. Signed-off-by: Vaibhav Gupta <vaibhavgupta40@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-25tcp: don't ignore ECN CWR on pure ACKDenis Kirjanov1-3/+11
there is a problem with the CWR flag set in an incoming ACK segment and it leads to the situation when the ECE flag is latched forever the following packetdrill script shows what happens: // Stack receives incoming segments with CE set +0.1 <[ect0] . 11001:12001(1000) ack 1001 win 65535 +0.0 <[ce] . 12001:13001(1000) ack 1001 win 65535 +0.0 <[ect0] P. 13001:14001(1000) ack 1001 win 65535 // Stack repsonds with ECN ECHO +0.0 >[noecn] . 1001:1001(0) ack 12001 +0.0 >[noecn] E. 1001:1001(0) ack 13001 +0.0 >[noecn] E. 1001:1001(0) ack 14001 // Write a packet +0.1 write(3, ..., 1000) = 1000 +0.0 >[ect0] PE. 1001:2001(1000) ack 14001 // Pure ACK received +0.01 <[noecn] W. 14001:14001(0) ack 2001 win 65535 // Since CWR was sent, this packet should NOT have ECE set +0.1 write(3, ..., 1000) = 1000 +0.0 >[ect0] P. 2001:3001(1000) ack 14001 // but Linux will still keep ECE latched here, with packetdrill // flagging a missing ECE flag, expecting // >[ect0] PE. 2001:3001(1000) ack 14001 // in the script In the situation above we will continue to send ECN ECHO packets and trigger the peer to reduce the congestion window. To avoid that we can check CWR on pure ACKs received. v3: - Add a sequence check to avoid sending an ACK to an ACK v2: - Adjusted the comment - move CWR check before checking for unacknowledged packets Signed-off-by: Denis Kirjanov <denis.kirjanov@suse.com> Acked-by: Neal Cardwell <ncardwell@google.com> Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-25net: phy: mscc: avoid skcipher API for single block AES encryptionArd Biesheuvel2-33/+10
The skcipher API dynamically instantiates the transformation object on request that implements the requested algorithm optimally on the given platform. This notion of optimality only matters for cases like bulk network or disk encryption, where performance can be a bottleneck, or in cases where the algorithm itself is not known at compile time. In the mscc case, we are dealing with AES encryption of a single block, and so neither concern applies, and we are better off using the AES library interface, which is lightweight and safe for this kind of use. Note that the scatterlist API does not permit references to buffers that are located on the stack, so the existing code is incorrect in any case, but avoiding the skcipher and scatterlist APIs entirely is the most straight-forward approach to fixing this. Cc: Antoine Tenart <antoine.tenart@bootlin.com> Cc: Andrew Lunn <andrew@lunn.ch> Cc: Florian Fainelli <f.fainelli@gmail.com> Cc: Heiner Kallweit <hkallweit1@gmail.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Jakub Kicinski <kuba@kernel.org> Fixes: 28c5107aa904e ("net: phy: mscc: macsec support") Reviewed-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Ard Biesheuvel <ardb@kernel.org> Tested-by: Antoine Tenart <antoine.tenart@bootlin.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-25Merge tag 's390-5.8-3' of ↵Linus Torvalds3-2/+5
git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux Pull s390 fixes from Heiko Carstens: - Fix kernel crash on system call single stepping. - Make sure early program check handler is executed with DAT on to avoid an endless program check loop. - Add __GFP_NOWARN flag to debug feature to avoid user triggerable allocation failure messages. * tag 's390-5.8-3' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: s390/debug: avoid kernel warning on too large number of pages s390/kasan: fix early pgm check handler execution s390: fix system call single stepping
2020-06-25Merge tag 'sound-5.8-rc3' of ↵Linus Torvalds35-160/+347
git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound Pull sound fixes from Takashi Iwai: "A collection of small fixes gathered in the last two weeks. The major changes here are fixes for the recent DPCM regressions found on i.MX and Qualcomm platforms and fixes for resource leaks in ASoC DAI registrations. Other than those are mostly device-specific fixes including the usual USB- and HD-audio quirks, and a fix for syzkaller case and ID updates for new Intel platforms" * tag 'sound-5.8-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (32 commits) ALSA: usb-audio: Fix OOB access of mixer element list ALSA: usb-audio: add quirk for Samsung USBC Headset (AKG) ALSA: usb-audio: Add registration quirk for Kingston HyperX Cloud Flight S ASoC: rockchip: Fix a reference count leak. ASoC: amd: closing specific instance. ALSA: hda: Intel: add missing PCI IDs for ICL-H, TGL-H and EKL ASoC: hdac_hda: fix memleak with regmap not freed on remove ASoC: SOF: Intel: add PCI IDs for ICL-H and TGL-H ASoC: SOF: Intel: add PCI ID for CometLake-S ASoC: Intel: SOF: merge COMETLAKE_LP and COMETLAKE_H ALSA: hda/realtek: Add mute LED and micmute LED support for HP systems ALSA: usb-audio: Fix potential use-after-free of streams ALSA: hda/realtek - Add quirk for MSI GE63 laptop ASoC: fsl_ssi: Fix bclk calculation for mono channel ASoC: SOF: Intel: hda: Clear RIRB status before reading WP ASoC: rt1015: Update rt1015 default register value according to spec modification. ASoC: qcom: common: set correct directions for dailinks ASoc: q6afe: add support to get port direction ASoC: soc-pcm: fix checks for multi-cpu FE dailinks ASoC: rt5682: Let dai clks be registered whether mclk exists or not ...
2020-06-25tools, bpftool: Define attach_type_name array only onceTobias Klauser2-35/+37
Define attach_type_name in common.c instead of main.h so it is only defined once. This leads to a slight decrease in the binary size of bpftool. Before: text data bss dec hex filename 399024 11168 1573160 1983352 1e4378 bpftool After: text data bss dec hex filename 398256 10880 1573160 1982296 1e3f58 bpftool Signed-off-by: Tobias Klauser <tklauser@distanz.ch> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Reviewed-by: Quentin Monnet <quentin@isovalent.com> Link: https://lore.kernel.org/bpf/20200624143154.13145-1-tklauser@distanz.ch
2020-06-25tools, bpftool: Define prog_type_name array only onceTobias Klauser5-37/+42
Define prog_type_name in prog.c instead of main.h so it is only defined once. This leads to a slight decrease in the binary size of bpftool. Before: text data bss dec hex filename 401032 11936 1573160 1986128 1e4e50 bpftool After: text data bss dec hex filename 399024 11168 1573160 1983352 1e4378 bpftool Signed-off-by: Tobias Klauser <tklauser@distanz.ch> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Reviewed-by: Quentin Monnet <quentin@isovalent.com> Link: https://lore.kernel.org/bpf/20200624143124.12914-1-tklauser@distanz.ch
2020-06-25net: enetc add tc flower offload flow metering policing actionPo Liu2-12/+172
Flow metering entries in IEEE 802.1Qci is an optional function for a flow filtering module. Flow metering is two rates two buckets and three color marker to policing the frames. This patch only enable one rate one bucket and in color blind mode. Flow metering instance are as specified in the algorithm in MEF 10.3 and in Bandwidth Profile Parameters. They are: a) Flow meter instance identifier. An integer value identifying the flow meter instance. The patch use the police 'index' as thin value. b) Committed Information Rate (CIR), in bits per second. This patch use the 'rate_bytes_ps' represent this value. c) Committed Burst Size (CBS), in octets. This patch use the 'burst' represent this value. d) Excess Information Rate (EIR), in bits per second. e) Excess Burst Size per Bandwidth Profile Flow (EBS), in octets. And plus some other parameters. This patch set EIR/EBS default disable and color blind mode. v1->v2 changes: - Use div_u64() as division replace the '/' report: All errors (new ones prefixed by >>): ld: drivers/net/ethernet/freescale/enetc/enetc_qos.o: in function `enetc_flowmeter_hw_set': >> enetc_qos.c:(.text+0x66): undefined reference to `__udivdi3' Reported-by: kernel test robot <lkp@intel.com> Signed-off-by: Po Liu <Po.Liu@nxp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-25net: qos: police action add index for tc flower offloadingPo Liu2-0/+2
Hardware device may include more than one police entry. Specifying the action's index make it possible for several tc filters to share the same police action when installing the filters. Propagate this index to device drivers through the flow offload intermediate representation, so that drivers could share a single hardware policer between multiple filters. v1->v2 changes: - Update the commit message suggest by Ido Schimmel <idosch@idosch.org> Signed-off-by: Po Liu <Po.Liu@nxp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-25net: enetc: add support max frame size for tc flower offloadPo Liu1-16/+36
Base on the tc flower offload police action add max frame size by the parameter 'mtu'. Tc flower device driver working by the IEEE 802.1Qci stream filter can implement the max frame size filtering. Add it to the current hardware tc flower stearm filter driver. Signed-off-by: Po Liu <Po.Liu@nxp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-25net: qos: add tc police offloading action with max frame size limitPo Liu3-0/+12
Current police offloading support the 'burst'' and 'rate_bytes_ps'. Some hardware own the capability to limit the frame size. If the frame size larger than the setting, the frame would be dropped. For the police action itself already accept the 'mtu' parameter in tc command. But not extend to tc flower offloading. So extend 'mtu' to tc flower offloading. Signed-off-by: Po Liu <Po.Liu@nxp.com> Signed-off-by: David S. Miller <davem@davemloft.net>