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2017-12-27ath10k: Add paddrs_ring_64 support for 64bit targetGovind Singh
paddrs_ring_64 holds the physical device address of the rx buffers that host SW provides for the MAC HW to fill. Since this field is used in rx ring setup and rx ring replenish in rx data path. Define separate methods for handling 64 bit ring paddr and attach them dynamically based on target_64bit hw param flag. Use u64 type while popping paddr from the rx hash table for 64bit target. Signed-off-by: Govind Singh <govinds@qti.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-12-27ath10k: Add hw param for rx ring size supportGovind Singh
WCN3990 uses larger ring size in comparison to existing ring size value. Add rx ring size hw param for supporting different rx ring size across multiple target. Signed-off-by: Govind Singh <govinds@qti.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-12-27ath10k: Add support for htt_data_tx_desc_64 descriptorGovind Singh
WCN3990 target uses 64 bit frags_paddr in htt tx descriptor, which holds the physical address of SKB fragments in tx data path. In order to support 64 bit bit frags_paddr in htt tx descriptor, define htt_data_tx_desc_64 descriptor and ath10k_htt_tx_64 method for handling tx data path with new descriptor fields. Signed-off-by: Govind Singh <govinds@qti.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-12-27ath10k: Add support for 64 bit HTT frag descriptorGovind Singh
WCN3990 target uses 64 bit frag descriptor and more fields in TSO flag. Add support for 64 bit HTT frag descriptor. Signed-off-by: Govind Singh <govinds@qti.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-12-27ath10k: Add support for 64 bit htt rx ring cfgGovind Singh
WCN3900 target uses 64bit rx_ring_base_paddr and fw_idx_shadow_reg_paddr fields in HTT rx ring cfg message. These address points to the memory region where remote ring empty buffers are allocated. In order to add 64 bit htt rx ring cfg, define separate 64 bit htt rx ring cfg message and attach it in runtime based on target_64bit hw param flag. Signed-off-by: Govind Singh <govinds@qti.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-12-27ath10k: Add support for 64 bit HTT in-order indication msgGovind Singh
WCN3990 target use 64bit msdu address in htt in-order indication message. Add support for 64 bit msdu address in HTT_T2H_MSG_TYPE_RX_IN_ORD_PADDR_IND message. Signed-off-by: Govind Singh <govinds@qti.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-12-27ath10k: Update rx descriptor for WCN3990 targetGovind Singh
WCN3990 rx descriptor uses different offset of msdu start, msdu end, ppdu end, rx pkt end and rx frag info. To accommodate different offsets, define respective fields in rx descriptor of WCN3990 target. Signed-off-by: Govind Singh <govinds@qti.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-12-27ath10k: Add hw param for 64-bit address supportRakesh Pillai
WCN3990 target supports 37-bit addressing mode. In order to accommodate extended address support, add hw param to indicate if the target supports addressing above 32-bits. Signed-off-by: Rakesh Pillai <pillair@qti.qualcomm.com> Signed-off-by: Govind Singh <govinds@qti.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-12-27wil6210: fix build warnings without CONFIG_PMArnd Bergmann
The #ifdef checks are hard to get right, in this case some functions should have been left inside a CONFIG_PM_SLEEP check as seen by this message: drivers/net/wireless/ath/wil6210/pcie_bus.c:489:12: error: 'wil6210_pm_resume' defined but not used [-Werror=unused-function] drivers/net/wireless/ath/wil6210/pcie_bus.c:484:12: error: 'wil6210_pm_suspend' defined but not used [-Werror=unused-function] Using an __maybe_unused is easier here, so I'm replacing all the other #ifdef in this file as well for consistency. Fixes: 94162666cd51 ("wil6210: run-time PM when interface down") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-12-27ath10k: wmi: remove redundant integer fcColin Ian King
Variable fc is being assigned but never used, so remove it. Cleans up the clang warning: warning: Value stored to 'fc' is never read Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2017-12-19nfp: flower: compile Geneve encap actionsJohn Hurley
Generate rules for the NFP to encapsulate packets in Geneve tunnels. Move the vxlan action code to generic udp tunnel actions and use core code for both vxlan and Geneve. Only support outputting to well known port 6081. Setting tunnel options is not supported yet. Only attempt to offload if the fw supports Geneve. Signed-off-by: John Hurley <john.hurley@netronome.com> Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: Simon Horman <simon.horman@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-12-19nfp: flower: compile Geneve match fieldsJohn Hurley
Compile Geneve match fields for offloading to the NFP. The addition of Geneve overflows the 8 bit key_layer field, so apply extended metadata to the match cmsg allowing up to 32 more key_layer fields. Rather than adding new Geneve blocks, move the vxlan code to generic ipv4 udp tunnel structs and use these for both vxlan and Geneve. Matches are only supported when specifically mentioning well known port 6081. Geneve tunnel options are not yet included in the match. Only offload Geneve if the fw supports it - include check for this. Signed-off-by: John Hurley <john.hurley@netronome.com> Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: Simon Horman <simon.horman@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-12-19nfp: flower: read extra feature support from fwJohn Hurley
Extract the _abi_flower_extra_features symbol from the fw which gives a 64 bit bitmap of new features (on top of the flower base support) that the fw can offload. Store this bitmap in the priv data associated with each app. If the symbol does not exist, set the bitmap to 0. Signed-off-by: John Hurley <john.hurley@netronome.com> Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: Simon Horman <simon.horman@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-12-19nfp: flower: remove unused tun_mask variableJohn Hurley
The tunnel dest IP is required for separate offload to the NFP. It is already verified that a dest IP must be present and must be an exact match in the flower rule. Therefore, we can just extract the IP from the generated offload rule and remove the unused mask variable. The function is then no longer required to return the IP separately. Because tun_dst is localised to tunnel matches, move the declaration to the tunnel if branch. Signed-off-by: John Hurley <john.hurley@netronome.com> Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: Simon Horman <simon.horman@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-12-19cxgb4: RSS table is 4k for T6Ganesh Goudar
RSS table is 4k for T6 and later cards, add check for the same. Signed-off-by: Ganesh Goudar <ganeshgr@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-12-19ibmvnic: Include header descriptor support for ARP packetsThomas Falcon
In recent tests with new adapters, it was discovered that ARP packets were not being properly processed. This patch adds support for ARP packet headers to be passed to backing adapters, if necessary. Signed-off-by: Thomas Falcon <tlfalcon@linux.vnet.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-12-19ibmvnic: Increase maximum number of RX/TX queuesThomas Falcon
Increase the number of queues allocated to accommodate recent network adapter inclusions on the IBM vNIC platform. Signed-off-by: Thomas Falcon <tlfalcon@linux.vnet.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-12-19ibmvnic: Rename IBMVNIC_MAX_TX_QUEUES to IBMVNIC_MAX_QUEUESThomas Falcon
This value denotes the maximum number of TX queues but is used to allocate both RX and TX queues. Signed-off-by: Thomas Falcon <tlfalcon@linux.vnet.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-12-19Merge tag 'wireless-drivers-next-for-davem-2017-12-18' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers-next The drivers/net/wireless/intel/iwlwifi/pcie/drv.c conflict was resolved using a diff provided by Kalle in his pull request. Kalle Valo says: ==================== wireless-drivers-next patches for 4.16 A bigger pull request this time, the most visible change being the new driver mt76. But there's also Kconfig refactoring in ath9k and ath10k, work beginning in iwlwifi to have rate scaling in firmware/hardware, wcn3990 support getting closer in ath10k and lots of smaller changes. mt76 * a new driver for MT76x2e, a 2x2 PCIe 802.11ac chipset by MediaTek ath10k * enable multiqueue support for all hw using mac80211 wake_tx_queue op * new Kconfig option ATH10K_SPECTRAL to save RAM * show tx stats on QCA9880 * new qcom,ath10k-calibration-variant DT entry * WMI layer support for wcn3990 ath9k * new Kconfig option ATH9K_COMMON_SPECTRAL to save RAM wcn36xx * hardware scan offload support wil6210 * run-time PM support when interface is down iwlwifi * initial work for rate-scaling offload * Support for new FW API version 36 * Rename the temporary hw name A000 to 22000 ssb * make SSB a menuconfig to ease disabling it all mwl8k * enable non-DFS 5G channels 149-165 ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2017-12-19cxgb4: Report tid start range correctly for T6Ganesh Goudar
For T6, tid start range should be read from LE_DB_ACTIVE_TABLE_START_INDEX_A register. Signed-off-by: Arjun Vynipadath <arjun@chelsio.com> Signed-off-by: Ganesh Goudar <ganeshgr@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-12-19Merge branch 'for-upstream' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next Johan Hedberg says: ==================== pull request: bluetooth-next 2017-12-18 Here's the first bluetooth-next pull request for the 4.16 kernel. - hci_ll: multiple cleanups & fixes - Remove Gustavo Padovan from the MAINTAINERS file - Support BLE Adversing while connected (if the controller can do it) - DT updates for TI chips - Various other smaller cleanups & fixes Please let me know if there are any issues pulling. Thanks. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2017-12-19net: ks8851: Support DT-provided MAC addressLukas Wunner
Allow the boot loader to specify the MAC address in the device tree to override the EEPROM, or in case no EEPROM is present. Cc: Ben Dooks <ben@simtec.co.uk> Cc: Tristram Ha <tristram.ha@micrel.com> Cc: David J. Choi <david.choi@micrel.com> Signed-off-by: Lukas Wunner <lukas@wunner.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-12-19bcm63xx_enet: use platform device id directly for miibus nameJonas Gorski
Directly use the platform device for generating the miibus name. This removes the last user of bcm_enet_priv::mac_id and we can remove the field. Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-12-19bcm63xx_enet: remove pointless mac_id checkJonas Gorski
Enabling the ephy clock for mac 1 is harmless, and the actual usage of the ephy is not restricted to mac 0, so we might as well remove the check. Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-12-19bcm63xx_enet: use platform data for dma channel numbersJonas Gorski
To reduce the reliance on device ids, pass the dma channel numbers to the enet devices as platform data. Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-12-19bcm63xx_enet: just use "enet" as the clock nameJonas Gorski
Now that we have the individual clocks available as "enet" we don't need to rely on the device id for them anymore. Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-12-19geneve: speedup geneve tunnels dismantleHaishuang Yan
Since we now hold RTNL lock in geneve_exit_net, it's better batch them to speedup geneve tunnel dismantle. Signed-off-by: Haishuang Yan <yanhaishuang@cmss.chinamobile.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-12-19vxlan: speedup vxlan tunnels dismantleHaishuang Yan
Since we now hold RTNL lock in vxlan_exit_net, it's better to batch them to speedup vxlan tunnels dismantle. Signed-off-by: Haishuang Yan <yanhaishuang@cmss.chinamobile.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-12-19forcedeth: remove duplicate structure member in xmitZhu Yanjun
Since both first_tx_ctx and tx_skb are the head of tx ctx, it not necessary to use two structure members to statically indicate the head of tx ctx. So first_tx_ctx is removed. CC: Srinivas Eeda <srinivas.eeda@oracle.com> CC: Joe Jin <joe.jin@oracle.com> CC: Junxiao Bi <junxiao.bi@oracle.com> Signed-off-by: Zhu Yanjun <yanjun.zhu@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-12-19qede: Use NETIF_F_GRO_HW.Michael Chan
Advertise NETIF_F_GRO_HW and set edev->gro_disable according to the feature flag. Add qede_fix_features() to drop NETIF_F_GRO_HW if XDP is running or MTU does not support GRO_HW or GRO is not set. qede_change_mtu() also checks and disables GRO_HW if MTU is not supported. Cc: Ariel Elior <Ariel.Elior@cavium.com> Cc: everest-linux-l2@cavium.com Acked-by: Manish Chopra <manish.chopra@cavium.com> Signed-off-by: Michael Chan <michael.chan@broadcom.com> Acked-by: Manish Chopra <manish.chopra@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-12-19bnx2x: Use NETIF_F_GRO_HW.Michael Chan
Advertise NETIF_F_GRO_HW and turn on TPA_MODE_GRO when NETIF_F_GRO_HW is set. Disable NETIF_F_GRO_HW in bnx2x_fix_features() if the MTU does not support TPA_MODE_GRO or GRO is not set. bnx2x_change_mtu() also needs to disable NETIF_F_GRO_HW if the MTU does not support it. Original parameter disable_tpa will continue to disable LRO and GRO_HW. Preserve the original behavior of enabling LRO by default. User has to run ethtool -K to explicitly enable GRO_HW. Cc: Ariel Elior <Ariel.Elior@cavium.com> Cc: everest-linux-l2@cavium.com Signed-off-by: Michael Chan <michael.chan@broadcom.com> Acked-by: Manish Chopra <manish.chopra@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-12-19bnxt_en: Use NETIF_F_GRO_HW.Michael Chan
Advertise NETIF_F_GRO_HW in hw_features if hardware GRO is supported. In bnxt_fix_features(), disable GRO_HW and LRO if current hardware configuration does not allow it. GRO_HW depends on GRO. GRO_HW is also mutually exclusive with LRO. XDP setup will now rely on bnxt_fix_features() to turn off aggregation. During chip init, turn on or off hardware GRO based on NETIF_F_GRO_HW in features flag. Signed-off-by: Michael Chan <michael.chan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-12-18cxgb4: Simplify PCIe Completion Timeout settingBjorn Helgaas
Simplify PCIe Completion Timeout setting by using the pcie_capability_clear_and_set_word() interface. No functional change intended. Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-12-18phylink: fix locking assertsRussell King
Use ASSERT_RTNL() rather than WARN_ON(!lockdep_rtnl_is_held()) which stops working when lockdep fires, and we end up with lots of warnings. Fixes: 9525ae83959b ("phylink: add phylink infrastructure") Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-12-18sfp: fix EEPROM reading in the case of non-SFF8472 SFPsRussell King
The EEPROM reading was trying to read from the second EEPROM address if we requested the last byte from the SFF8079 EEPROM, which caused a failure when the second EEPROM is not present. Discovered with a S-RJ01 SFP module. Fix this. Fixes: 73970055450e ("sfp: add SFP module support") Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-12-18sfp: fix non-detection of PHYRussell King
The detection of a PHY changed in commit e98a3aabf85f ("mdio_bus: don't return NULL from mdiobus_scan()") which now causes sfp to print an error message. Update for this change. Fixes: 73970055450e ("sfp: add SFP module support") Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-12-18net: phy: meson-gxl: join the authorsJerome Brunet
Following previous changes, join the other authors of this driver and take the blame with them Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Jerome Brunet <jbrunet@baylibre.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-12-18net: phy: meson-gxl: add interrupt supportJerome Brunet
Enable interrupt support in meson-gxl PHY driver Signed-off-by: Jerome Brunet <jbrunet@baylibre.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-12-18net: phy: meson-gxl: leave CONFIG_A6 untouchedJerome Brunet
The PHY performs just as well when left in its default configuration and it makes senses because this poke gets reset just after init. According to the documentation, all registers in the Analog/DSP bank are reset when there is a mode switch from 10BT to 100BT. The bank is also reset on power down and soft reset, so we will never see the value which may have been set by the bootloader. In the end, we have used the default configuration so far and there is no reason to change now. Remove CONFIG_A6 poke to make this clear. Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Jerome Brunet <jbrunet@baylibre.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-12-18net: phy: meson-gxl: use genphy_config_initJerome Brunet
Use the generic init function to populate some of the phydev structure fields Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Jerome Brunet <jbrunet@baylibre.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-12-18net: phy: meson-gxl: add read and write helpers for banked registersJerome Brunet
Add read and write helpers to manipulate banked registers on this PHY This helps clarify the settings applied to these registers and what the driver actually does Signed-off-by: Neil Armstrong <narmstrong@baylibre.com> Signed-off-by: Jerome Brunet <jbrunet@baylibre.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-12-18net: phy: meson-gxl: define control registersJerome Brunet
Define registers and bits in meson-gxl PHY driver to make a bit more human friendly. No functional change. Signed-off-by: Neil Armstrong <narmstrong@baylibre.com> Signed-off-by: Jerome Brunet <jbrunet@baylibre.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-12-18net: phy: meson-gxl: check phy_write return valueJerome Brunet
Always check phy_write return values. Better to be safe than sorry Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Jerome Brunet <jbrunet@baylibre.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-12-18sfc: populate the timer reload fieldBert Kenward
The timer mode register now has a separate field for the reload value. Since we always use this timer with the reload (for interrupt moderation) we set this to the same as the initial value. Previous hardware ignores this field, so we can safely set these bits on all hardware that uses this register. Signed-off-by: Edward Cree <ecree@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-12-18sfc: update EF10 register definitionsBert Kenward
The RX_L4_CLASS field has shrunk from 3 bits to 2 bits. The upper bit was never used in previous hardware, so we can use the new definition throughout. The TSO OUTER_IPID field was previously spelt differently from the external definitions. Signed-off-by: Edward Cree <ecree@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-12-18sfc: improve PTP error reportingEdward Cree
Log a message if PTP probing fails; if we then, unexpectedly, get PTP events, only log a message for the first one on each device. Signed-off-by: Edward Cree <ecree@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-12-18sfc: add Medford2 (SFC9250) PCI Device IDsEdward Cree
Signed-off-by: Edward Cree <ecree@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-12-18sfc: support VI strides other than 8kEdward Cree
Medford2 can also have 16k or 64k VI stride. This is reported by MCDI in GET_CAPABILITIES, which fortunately is called before the driver does anything sensitive to the VI stride (such as accessing or even allocating VIs past the zeroth). Signed-off-by: Edward Cree <ecree@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-12-18sfc: make mem_bar a function rather than a constantEdward Cree
Support using BAR 0 on SFC9250, even though the driver doesn't bind to such devices yet. Signed-off-by: Edward Cree <ecree@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-12-18Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-nextDavid S. Miller
Daniel Borkmann says: ==================== pull-request: bpf-next 2017-12-18 The following pull-request contains BPF updates for your *net-next* tree. The main changes are: 1) Allow arbitrary function calls from one BPF function to another BPF function. As of today when writing BPF programs, __always_inline had to be used in the BPF C programs for all functions, unnecessarily causing LLVM to inflate code size. Handle this more naturally with support for BPF to BPF calls such that this __always_inline restriction can be overcome. As a result, it allows for better optimized code and finally enables to introduce core BPF libraries in the future that can be reused out of different projects. x86 and arm64 JIT support was added as well, from Alexei. 2) Add infrastructure for tagging functions as error injectable and allow for BPF to return arbitrary error values when BPF is attached via kprobes on those. This way of injecting errors generically eases testing and debugging without having to recompile or restart the kernel. Tags for opting-in for this facility are added with BPF_ALLOW_ERROR_INJECTION(), from Josef. 3) For BPF offload via nfp JIT, add support for bpf_xdp_adjust_head() helper call for XDP programs. First part of this work adds handling of BPF capabilities included in the firmware, and the later patches add support to the nfp verifier part and JIT as well as some small optimizations, from Jakub. 4) The bpftool now also gets support for basic cgroup BPF operations such as attaching, detaching and listing current BPF programs. As a requirement for the attach part, bpftool can now also load object files through 'bpftool prog load'. This reuses libbpf which we have in the kernel tree as well. bpftool-cgroup man page is added along with it, from Roman. 5) Back then commit e87c6bc3852b ("bpf: permit multiple bpf attachments for a single perf event") added support for attaching multiple BPF programs to a single perf event. Given they are configured through perf's ioctl() interface, the interface has been extended with a PERF_EVENT_IOC_QUERY_BPF command in this work in order to return an array of one or multiple BPF prog ids that are currently attached, from Yonghong. 6) Various minor fixes and cleanups to the bpftool's Makefile as well as a new 'uninstall' and 'doc-uninstall' target for removing bpftool itself or prior installed documentation related to it, from Quentin. 7) Add CONFIG_CGROUP_BPF=y to the BPF kernel selftest config file which is required for the test_dev_cgroup test case to run, from Naresh. 8) Fix reporting of XDP prog_flags for nfp driver, from Jakub. 9) Fix libbpf's exit code from the Makefile when libelf was not found in the system, also from Jakub. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>