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2020-02-20selftests/bpf: Add bpf_read_branch_records() selftestDaniel Xu3-1/+244
Add a selftest to test: * default bpf_read_branch_records() behavior * BPF_F_GET_BRANCH_RECORDS_SIZE flag behavior * error path on non branch record perf events * using helper to write to stack * using helper to write to global On host with hardware counter support: # ./test_progs -t perf_branches #27/1 perf_branches_hw:OK #27/2 perf_branches_no_hw:OK #27 perf_branches:OK Summary: 1/2 PASSED, 0 SKIPPED, 0 FAILED On host without hardware counter support (VM): # ./test_progs -t perf_branches #27/1 perf_branches_hw:OK #27/2 perf_branches_no_hw:OK #27 perf_branches:OK Summary: 1/2 PASSED, 1 SKIPPED, 0 FAILED Also sync tools/include/uapi/linux/bpf.h. Signed-off-by: Daniel Xu <dxu@dxuuu.xyz> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Andrii Nakryiko <andriin@fb.com> Link: https://lore.kernel.org/bpf/20200218030432.4600-3-dxu@dxuuu.xyz
2020-02-20bpf: Add bpf_read_branch_records() helperDaniel Xu2-1/+65
Branch records are a CPU feature that can be configured to record certain branches that are taken during code execution. This data is particularly interesting for profile guided optimizations. perf has had branch record support for a while but the data collection can be a bit coarse grained. We (Facebook) have seen in experiments that associating metadata with branch records can improve results (after postprocessing). We generally use bpf_probe_read_*() to get metadata out of userspace. That's why bpf support for branch records is useful. Aside from this particular use case, having branch data available to bpf progs can be useful to get stack traces out of userspace applications that omit frame pointers. Signed-off-by: Daniel Xu <dxu@dxuuu.xyz> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Andrii Nakryiko <andriin@fb.com> Link: https://lore.kernel.org/bpf/20200218030432.4600-2-dxu@dxuuu.xyz
2020-02-20e1000e: fix missing cpu_to_le64 on buffer_addrBen Dooks (Codethink)1-1/+1
The following warning suggests there is a missing cpu_to_le64() in the e1000_flush_tx_ring() function (it is also the behaviour elsewhere in the driver to do cpu_to_le64() on the buffer_addr when setting it) drivers/net/ethernet/intel/e1000e/netdev.c:3813:30: warning: incorrect type in assignment (different base types) drivers/net/ethernet/intel/e1000e/netdev.c:3813:30: expected restricted __le64 [usertype] buffer_addr drivers/net/ethernet/intel/e1000e/netdev.c:3813:30: got unsigned long long [usertype] dma Signed-off-by: Ben Dooks (Codethink) <ben.dooks@codethink.co.uk> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2020-02-20ice: fix define for E822 backplane deviceBruce Allan3-4/+4
This product's name has changed; update the macro identifier accordingly. Signed-off-by: Bruce Allan <bruce.w.allan@intel.com> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2020-02-20ice: add support for E823 devicesBruce Allan3-9/+53
Add E823 device ids and convert conditional expressions to a more appropriate switch statement. Signed-off-by: Bruce Allan <bruce.w.allan@intel.com> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2020-02-20ice: add additional E810 device idBruce Allan2-0/+3
Add support for device id 0x159b. Signed-off-by: Bruce Allan <bruce.w.allan@intel.com> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2020-02-20ice: add backslash-n to stringsJesse Brandeburg5-18/+13
There were several strings found without line feeds, fix them by adding a line feed, as is typical. Without this lotsofmessagescanbejumbledtogether. This patch has known checkpatch warnings from long lines for the NL_* messages, because checkpatch doesn't know how to ignore them. Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2020-02-20ice: increase PF reset wait timeout to 300 millisecondsJacob Keller1-1/+1
Increase the maximum time that the driver will wait for a PF reset from 200 milliseconds to 300 milliseconds, to account for possibility of a slightly longer than expected PF reset. Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2020-02-20ice: Support XDP UMEM wake up mechanismKrzysztof Kazimierczak1-0/+18
Add support for a new AF_XDP feature that has already been introduced in upstreamed Intel NIC drivers. If a user space application signals that it might sleep using the new bind flag XDP_USE_NEED_WAKEUP, the driver will then set this flag if it has no more buffers on the NIC Rx ring and yield to the application. For Tx, it will set the flag if it has no outstanding Tx completion interrupts and return to the application. Signed-off-by: Krzysztof Kazimierczak <krzysztof.kazimierczak@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2020-02-20ice: SW DCB, report correct max TC valueDave Ertman1-8/+1
lldpad is using the value reported in the DCB config for max_tc as the max allowed number of TCs, not the current max. ICE driver was reporting it as current maximum TC. Change DCB_NL function to report maximum TC allowed by this device. Signed-off-by: Dave Ertman <david.m.ertman@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2020-02-20ice: Report correct DCB modeAvinash Dayanand1-3/+24
Add code to detect if DCB is in IEEE or CEE mode. Without this the code will always report as IEEE mode which is incorrect and confuses the user. Signed-off-by: Avinash Dayanand <avinash.dayanand@intel.com> Signed-off-by: Scott Register <scottx.register@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2020-02-20ice: Add DCBNL ops required to configure ETS in CEE for SW DCBAvinash JD1-0/+43
Couple of DCBNL ops are required for configuring ETS in SW DCB CEE mode. If these functions are not added, it'll break the CEE functionality. Signed-off-by: Avinash JD <avinash.dayanand@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2020-02-20ice: Always clear the QRXFLXP_CNTXT register for VF Rx queuesBrett Creeley2-2/+7
Currently when the PF reduces its number of channels via ethtool and then VFs are created there may be stale data for some of the Rx queues belonging to VFs. This happens when a VF reuses an Rx queue that was previously used by the PF. Specifically, the QRXFLXP_CNTXT register will have incorrect values. Fix this by always clearing the relevant values in the QRXFLXP_CNTXT register for VF queues. Signed-off-by: Brett Creeley <brett.creeley@intel.com> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2020-02-19ice: Fix for TCAM entry managementDan Nowlin1-14/+51
Order intermediate VSIG list correct in order to correctly match existing VSIG lists. When overriding pre-existing TCAM entries, properly delete the existing entry and remove it from the change/update list. Signed-off-by: Dan Nowlin <dan.nowlin@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2020-02-19ice: update malicious driver detection event handlingPaul Greenwalt6-59/+150
Update the PF VFs MDD event message to rate limit once per second and report the total number Rx|Tx event count. Add support to print pending MDD events that occur during the rate limit. The use of net_ratelimit did not allow for per VF Rx|Tx granularity. Additional PF MDD log messages are guarded by netif_msg_[rx|tx]_err(). Since VF RX MDD events disable the queue, add ethtool private flag mdd-auto-reset-vf to configure VF reset to re-enable the queue. Disable anti-spoof detection interrupt to prevent spurious events during a function reset. To avoid race condition do not make PF MDD register reads conditional on global MDD result. Signed-off-by: Paul Greenwalt <paul.greenwalt@intel.com> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2020-02-19ice: Validate config for SW DCB mapAvinash Dayanand3-0/+47
Validate the inputs for SW DCB config received either via lldptool or pcap file. And don't apply DCB for bad bandwidth inputs. Without this patch, any config having bad inputs will cause the loss of link making PF unusable even after driver reload. Recoverable only via system reboot. Signed-off-by: Avinash Dayanand <avinash.dayanand@intel.com> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2020-02-19ice: Wait for VF to be reset/ready before configurationBrett Creeley2-61/+76
The configuration/command below is failing when the VF in the xml file is already bound to the host iavf driver. pci_0000_af_0_0.xml: <interface type='hostdev' managed='yes'> <source> <address type='pci' domain='0x0000' bus='0xaf' slot='0x0' function='0x0'/> </source> <mac address='00:de:ad:00:11:01'/> </interface> > virsh attach-device domain_name pci_0000_af_0_0.xml error: Failed to attach device from pci_0000_af_0_0.xml error: Cannot set interface MAC/vlanid to 00:de:ad:00:11:01/0 for ifname ens1f1 vf 0: Device or resource busy This is failing because the VF has not been completely removed/reset after being unbound (via the virsh command above) from the host iavf driver and ice_set_vf_mac() checks if the VF is disabled before waiting for the reset to finish. Fix this by waiting for the VF remove/reset process to happen before checking if the VF is disabled. Also, since many functions for VF administration on the PF were more or less calling the same 3 functions (ice_wait_on_vf_reset(), ice_is_vf_disabled(), and ice_check_vf_init()) move these into the helper function ice_check_vf_ready_for_cfg(). Then call this function in any flow that attempts to configure/query a VF from the PF. Lastly, increase the maximum wait time in ice_wait_on_vf_reset() to 800ms, and modify/add the #define(s) that determine the wait time. This was done for robustness because in rare/stress cases VF removal can take a max of ~800ms and previously the wait was a max of ~300ms. Signed-off-by: Brett Creeley <brett.creeley@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2020-02-19ice: Don't tell the OS that link is going downMichal Swiatkowski1-7/+0
Remove code that tell the OS that link is going down when user change flow control via ethtool. When link is up it isn't certain that link goes down after 0x0605 aq command. If link doesn't go down, OS thinks that link is down, but physical link is up. To reset this state user have to take interface down and up. If link goes down after 0x0605 command, FW send information about that and after that driver tells the OS that the link goes down. So this code in ethtool is unnecessary. Signed-off-by: Michal Swiatkowski <michal.swiatkowski@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2020-02-19ice: Don't reject odd values of usecs set by userBrett Creeley2-12/+39
Currently if a user sets an odd [tx|rx]-usecs value through ethtool, the request is denied because the hardware is set to have an ITR granularity of 2us. This caused poor customer experience. Fix this by aligning to a register allowed value, which results in rounding down. Also, print a once per ring container type message to be clear about our intentions. Also, change the ITR_TO_REG define to be the bitwise and of the ITR setting and the ICE_ITR_MASK. This makes the purpose of ITR_TO_REG more obvious. Signed-off-by: Brett Creeley <brett.creeley@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2020-02-19Merge branch 'tcp_v6_gso_csum_prep'David S. Miller15-101/+27
Heiner Kallweit says: ==================== net: core: add helper tcp_v6_gso_csum_prep Several network drivers for chips that support TSO6 share the same code for preparing the TCP header, so let's factor it out to a helper. A difference is that some drivers reset the payload_len whilst others don't do this. This value is overwritten by TSO anyway, therefore the new helper resets it in general. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2020-02-19vmxnet3: use new helper tcp_v6_gso_csum_prepHeiner Kallweit1-4/+1
Use new helper tcp_v6_gso_csum_prep in additional network drivers. Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-02-19r8152: use new helper tcp_v6_gso_csum_prepHeiner Kallweit1-24/+2
Use new helper tcp_v6_gso_csum_prep in additional network drivers. Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Acked-by: Hayes Wang <hayeswang@realtek.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-02-19hv_netvsc: use new helper tcp_v6_gso_csum_prepHeiner Kallweit1-4/+1
Use new helper tcp_v6_gso_csum_prep in additional network drivers. Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-02-19net: socionext: use new helper tcp_v6_gso_csum_prepHeiner Kallweit1-5/+1
Use new helper tcp_v6_gso_csum_prep in additional network drivers. Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Acked-by: Ilias Apalodimas <ilias.apalodimas@linaro.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-02-19net: qcom/emac: use new helper tcp_v6_gso_csum_prepHeiner Kallweit1-5/+2
Use new helper tcp_v6_gso_csum_prep in additional network drivers. Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-02-19ionic: use new helper tcp_v6_gso_csum_prepHeiner Kallweit1-4/+1
Use new helper tcp_v6_gso_csum_prep in additional network drivers. Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Acked-by: Shannon Nelson <snelson@pensando.io> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-02-19jme: use new helper tcp_v6_gso_csum_prepHeiner Kallweit1-6/+1
Use new helper tcp_v6_gso_csum_prep in additional network drivers. Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-02-19e1000(e): use new helper tcp_v6_gso_csum_prepHeiner Kallweit2-9/+2
Use new helper tcp_v6_gso_csum_prep in additional network drivers. Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Reviewed-by: Alexander Duyck <alexander.h.duyck@linux.intel.com> Acked-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-02-19enic: use new helper tcp_v6_gso_csum_prepHeiner Kallweit1-2/+1
Use new helper tcp_v6_gso_csum_prep in additional network drivers. Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-02-19bna: use new helper tcp_v6_gso_csum_prepHeiner Kallweit1-6/+1
Use new helper tcp_v6_gso_csum_prep in additional network drivers. Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-02-19net: atheros: use new helper tcp_v6_gso_csum_prepHeiner Kallweit2-8/+3
Use new helper tcp_v6_gso_csum_prep in additional network drivers. Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-02-19r8169: use new helper tcp_v6_gso_csum_prepHeiner Kallweit1-24/+2
Simplify the code by using the new helper tcp_v6_gso_csum_prep. Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-02-19net: core: add helper tcp_v6_gso_csum_prepHeiner Kallweit1-0/+9
Several network drivers for chips that support TSO6 share the same code for preparing the TCP header, so let's factor it out to a helper. A difference is that some drivers reset the payload_len whilst others don't do this. This value is overwritten by TSO anyway, therefore the new helper resets it in general. Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Reviewed-by: Alexander Duyck <alexander.h.duyck@linux.intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-02-19bridge: br_stp: Use built-in RCU list checkingMadhuparna Bhowmik1-1/+2
list_for_each_entry_rcu() has built-in RCU and lock checking. Pass cond argument to list_for_each_entry_rcu() to silence false lockdep warning when CONFIG_PROVE_RCU_LIST is enabled by default. Signed-off-by: Madhuparna Bhowmik <madhuparnabhowmik10@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-02-19nfc: pn544: Fix occasional HW initialization failureDmitry Osipenko1-0/+1
The PN544 driver checks the "enable" polarity during of driver's probe and it's doing that by turning ON and OFF NFC with different polarities until enabling succeeds. It takes some time for the hardware to power-down, and thus, to deassert the IRQ that is raised by turning ON the hardware. Since the delay after last power-down of the polarity-checking process is missed in the code, the interrupt may trigger immediately after installing the IRQ handler (right after the checking is done), which results in IRQ handler trying to touch the disabled HW and ends with marking NFC as 'DEAD' during of the driver's probe: pn544_hci_i2c 1-002a: NFC: nfc_en polarity : active high pn544_hci_i2c 1-002a: NFC: invalid len byte shdlc: llc_shdlc_recv_frame: NULL Frame -> link is dead This patch fixes the occasional NFC initialization failure on Nexus 7 device. Signed-off-by: Dmitry Osipenko <digetx@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-02-19net/ipv4/sysctl: show tcp_{allowed, available}_congestion_control in ↵Christian Brauner1-12/+12
non-initial netns It is currenty possible to switch the TCP congestion control algorithm in non-initial network namespaces: unshare -U --map-root --net --fork --pid --mount-proc echo "reno" > /proc/sys/net/ipv4/tcp_congestion_control works just fine. But currently non-initial network namespaces have no way of kowing which congestion algorithms are available or allowed other than through trial and error by writing the names of the algorithms into the aforementioned file. Since we already allow changing the congestion algorithm in non-initial network namespaces by exposing the tcp_congestion_control file there is no reason to not also expose the tcp_{allowed,available}_congestion_control files to non-initial network namespaces. After this change a container with a separate network namespace will show: root@f1:~# ls -al /proc/sys/net/ipv4/tcp_* | grep congestion -rw-r--r-- 1 root root 0 Feb 19 11:54 /proc/sys/net/ipv4/tcp_allowed_congestion_control -r--r--r-- 1 root root 0 Feb 19 11:54 /proc/sys/net/ipv4/tcp_available_congestion_control -rw-r--r-- 1 root root 0 Feb 19 11:54 /proc/sys/net/ipv4/tcp_congestion_control Link: https://github.com/lxc/lxc/issues/3267 Reported-by: Haw Loeung <haw.loeung@canonical.com> Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-02-19net: hsr: Pass lockdep expression to RCU listsAmol Grover1-1/+2
node_db is traversed using list_for_each_entry_rcu outside an RCU read-side critical section but under the protection of hsr->list_lock. Hence, add corresponding lockdep expression to silence false-positive warnings, and harden RCU lists. Signed-off-by: Amol Grover <frextrite@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-02-19net: mvneta: align xdp stats naming scheme to mlx5 driverLorenzo Bianconi1-16/+36
Introduce "rx" prefix in the name scheme for xdp counters on rx path. Differentiate between XDP_TX and ndo_xdp_xmit counters Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Acked-by: Jesper Dangaard Brouer <brouer@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-02-19Merge branch 'octeontx2-af-Cleanup-changes'David S. Miller4-132/+74
Sunil Goutham says: ==================== octeontx2-af: Cleanup changes These patches cleanup AF driver by removing unnecessary function exports and cleanup repititive logic. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2020-02-19octeontx2-af: Cleanup nixlf and blkaddr retrieval logicSunil Goutham2-83/+50
Cleanedup repititive nixlf and blkaddr retrieving logic is various mailbox handlers throughout the rvu_nix.c file. Signed-off-by: Sunil Goutham <sgoutham@marvell.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-02-19octeontx2-af: Cleanup CGX config permission checksSunil Goutham1-31/+24
Most of the CGX register config is restricted to mapped RVU PFs, this patch cleans up these permission checks spread across the rvu_cgx.c file by moving the checks to a common fn(). Signed-off-by: Sunil Goutham <sgoutham@marvell.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-02-19octeontx2-af: Remove unnecessary export symbols in CGX driverSunil Goutham1-18/+0
Since CGX driver and AF driver are built into a single module the export symbols in CGX driver are not needed. This patch gets rid of them. Signed-off-by: Sunil Goutham <sgoutham@marvell.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-02-19Merge tag 'mlx5-updates-2020-01-24' of ↵David S. Miller19-225/+1136
git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux Saeed Mahameed says: ==================== This series adds two moderate updates and some misc small patches to mlx5 driver. 1) From Aya, Add the missing devlink health dump callbacks support for both rx and tx health reporters. First patch of the series is extending devlink API to set binary fmsg data. All others patches in the series are adding the mlx5 devlink health callbacks support and the needed FW commands. 2) Also from Aya, Support for FEC modes based on 50G per lane links. Part of this series, Aya adds one missing link mode define "FEC_LLRS" to include/uapi/linux/ethtool.h. 3) From Joe, Use proper logging and tracing line terminations 4) From Christophe, Remove a useless 'drain_workqueue()' ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2020-02-19Merge tag 'mlx5-fixes-2020-02-18' of ↵David S. Miller11-29/+70
git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux Saeed Mahameed says: ==================== Mellanox, mlx5 fixes 2020-02-18 This series introduces some fixes to mlx5 driver. Please pull and let me know if there is any problem. For -stable v5.3 ('net/mlx5: Fix sleep while atomic in mlx5_eswitch_get_vepa') For -stable v5.4 ('net/mlx5: DR, Fix matching on vport gvmi') ('net/mlx5e: Fix crash in recovery flow without devlink reporter') For -stable v5.5 ('net/mlx5e: Reset RQ doorbell counter before moving RQ state from RST to RDY') ('net/mlx5e: Don't clear the whole vf config when switching modes') ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2020-02-19Merge tag 'iommu-fixes-v5.6-rc2' of ↵Linus Torvalds5-37/+51
git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu Pull iommu fixes from Joerg Roedel: - Compile warning fix for the Intel IOMMU driver - Fix kdump boot with Intel IOMMU enabled and in passthrough mode - Disable AMD IOMMU on a Laptop/Embedded platform because the delay it introduces in DMA transactions causes screen flickering there with 4k monitors - Make domain_free function in QCOM IOMMU driver robust and not leak memory/dereference NULL pointers - Fix ARM-SMMU module parameter prefix names * tag 'iommu-fixes-v5.6-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: iommu/arm-smmu: Restore naming of driver parameter prefix iommu/qcom: Fix bogus detach logic iommu/amd: Disable IOMMU on Stoney Ridge systems iommu/vt-d: Simplify check in identity_mapping() iommu/vt-d: Remove deferred_attach_domain() iommu/vt-d: Do deferred attachment in iommu_need_mapping() iommu/vt-d: Move deferred device attachment into helper function iommu/vt-d: Add attach_deferred() helper iommu/vt-d: Fix compile warning from intel-svm.h
2020-02-19Merge tag 'sound-5.6-rc3' of ↵Linus Torvalds26-436/+265
git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound Pull sound fixes from Takashi Iwai: "The only largish change in this pull request is about the revert of the recent max98090 and its relevant patches due to regressions. Other than that, all small fixes for ALSA core (covering KCSAN fuzzer warnings in ALSA sequencer and rawmidi), Intel SOF HD-audio fixes, AMD ACP fixes, usual HD-audio quirks, and various ASoC fixes" * tag 'sound-5.6-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: ALSA: hda: Use scnprintf() for printing texts for sysfs/procfs ALSA: hda/realtek - Apply quirk for yet another MSI laptop ASoC: sun8i-codec: Fix setting DAI data format ALSA: hda/realtek - Apply quirk for MSI GP63, too ASoC: amd: ACP needs to be powered off in BIOS. ASoC: hdmi-codec: set plugged_cb to NULL when component removing ASoC: dapm: remove snd_soc_dapm_put_enum_double_locked ASoC: max98090: revert invalid fix for handling SHDN ALSA: rawmidi: Avoid bit fields for state flags ALSA: seq: Fix concurrent access to queue current tick/time ALSA: seq: Avoid concurrent access to queue flags ASoC: codec2codec: avoid invalid/double-free of pcm runtime ASoC: amd: Buffer Size instead of MAX Buffer ASoC: SOF: Intel: hda: move i915 init earlier ASoC: SOF: Intel: hda: fix ordering bug in resume flow ALSA: hda: do not override bus codec_mask in link_get() ASoC: atmel: fix atmel_ssc_set_audio link failure ASoC: fsl_sai: Fix exiting path on probing failure
2020-02-19drm/amdgpu/display: clean up hdcp workqueue handlingAlex Deucher1-4/+6
Use the existence of the workqueue itself to determine when to enable HDCP features rather than sprinkling asic checks all over the code. Also add a check for the existence of the hdcp workqueue in the irq handling on the off chance we get and HPD RX interrupt with the CP bit set. This avoids a crash if the driver doesn't support HDCP for a particular asic. Fixes: 96a3b32e67236f ("drm/amd/display: only enable HDCP for DCN+") Bug: https://bugzilla.kernel.org/show_bug.cgi?id=206519 Reviewed-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-02-19Merge branch 'bpf-skmsg-simplify-restore'Daniel Borkmann2-16/+124
Jakub Sitnicki says: ==================== This series has been split out from "Extend SOCKMAP to store listening sockets" [0]. I think it stands on its own, and makes the latter series smaller, which will make the review easier, hopefully. The essence is that we don't need to do a complicated dance in sk_psock_restore_proto, if we agree that the contract with tcp_update_ulp is to restore callbacks even when the socket doesn't use ULP. This is what tcp_update_ulp currently does, and we just make use of it. Series is accompanied by a test for a particularly tricky case of restoring callbacks when we have both sockmap and tls callbacks configured in sk->sk_prot. [0] https://lore.kernel.org/bpf/20200127131057.150941-1-jakub@cloudflare.com/ ==================== Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2020-02-19selftests/bpf: Test unhashing kTLS socket after removing from mapJakub Sitnicki1-0/+123
When a TCP socket gets inserted into a sockmap, its sk_prot callbacks get replaced with tcp_bpf callbacks built from regular tcp callbacks. If TLS gets enabled on the same socket, sk_prot callbacks get replaced once again, this time with kTLS callbacks built from tcp_bpf callbacks. Now, we allow removing a socket from a sockmap that has kTLS enabled. After removal, socket remains with kTLS configured. This is where things things get tricky. Since the socket has a set of sk_prot callbacks that are a mix of kTLS and tcp_bpf callbacks, we need to restore just the tcp_bpf callbacks to the original ones. At the moment, it comes down to the the unhash operation. We had a regression recently because tcp_bpf callbacks were not cleared in this particular scenario of removing a kTLS socket from a sockmap. It got fixed in commit 4da6a196f93b ("bpf: Sockmap/tls, during free we may call tcp_bpf_unhash() in loop"). Add a test that triggers the regression so that we don't reintroduce it in the future. Signed-off-by: Jakub Sitnicki <jakub@cloudflare.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: John Fastabend <john.fastabend@gmail.com> Link: https://lore.kernel.org/bpf/20200217121530.754315-4-jakub@cloudflare.com
2020-02-19bpf, sk_msg: Don't clear saved sock proto on restoreJakub Sitnicki1-7/+1
There is no need to clear psock->sk_proto when restoring socket protocol callbacks in sk->sk_prot. The psock is about to get detached from the sock and eventually destroyed. At worst we will restore the protocol callbacks and the write callback twice. This makes reasoning about psock state easier. Once psock is initialized, we can count on psock->sk_proto always being set. Signed-off-by: Jakub Sitnicki <jakub@cloudflare.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: John Fastabend <john.fastabend@gmail.com> Link: https://lore.kernel.org/bpf/20200217121530.754315-3-jakub@cloudflare.com
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