- 13 Jan, 2023 31 commits
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Yunhui Cui authored
Add 2 tracepoints to monitor the tcp/udp traffic of per process and per cgroup. Regarding monitoring the tcp/udp traffic of each process, there are two existing solutions, the first one is https://www.atoptool.nl/netatop.php. The second is via kprobe/kretprobe. Netatop solution is implemented by registering the hook function at the hook point provided by the netfilter framework. These hook functions may be in the soft interrupt context and cannot directly obtain the pid. Some data structures are added to bind packets and processes. For example, struct taskinfobucket, struct taskinfo ... Every time the process sends and receives packets it needs multiple hashmaps,resulting in low performance and it has the problem fo inaccurate tcp/udp traffic statistics(for example: multiple threads share sockets). We can obtain the information with kretprobe, but as we know, kprobe gets the result by trappig in an exception, which loses performance compared to tracepoint. We compared the performance of tracepoints with the above two methods, and the results are as follows: ab -n 1000000 -c 1000 -r http://127.0.0.1/index.html without trace: Time per request: 39.660 [ms] (mean) Time per request: 0.040 [ms] (mean, across all concurrent requests) netatop: Time per request: 50.717 [ms] (mean) Time per request: 0.051 [ms] (mean, across all concurrent requests) kr: Time per request: 43.168 [ms] (mean) Time per request: 0.043 [ms] (mean, across all concurrent requests) tracepoint: Time per request: 41.004 [ms] (mean) Time per request: 0.041 [ms] (mean, across all concurrent requests It can be seen that tracepoint has better performance. Signed-off-by:
Yunhui Cui <cuiyunhui@bytedance.com> Signed-off-by:
Xiongchun Duan <duanxiongchun@bytedance.com> Reviewed-by:
Steven Rostedt (Google) <rostedt@goodmis.org> Signed-off-by:
David S. Miller <davem@davemloft.net>
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David S. Miller authored
Daniele Palmas says: ==================== net: add tx packets aggregation to ethtool and rmnet Hello maintainers and all, this patchset implements tx qmap packets aggregation in rmnet and generic ethtool support for that. Some low-cat Thread-x based modems are not capable of properly reaching the maximum allowed throughput both in tx and rx during a bidirectional test if tx packets aggregation is not enabled. I verified this problem with rmnet + qmi_wwan by using a MDM9207 Cat. 4 based modem (50Mbps/150Mbps max throughput). What is actually happening is pictured at https://drive.google.com/file/d/1gSbozrtd9h0X63i6vdkNpN68d-9sg8f9/view Testing with iperf TCP, when rx and tx flows are tested singularly there's no issue in tx and minor issues in rx (not able to reach max throughput). When there are concurrent tx and rx flows, tx throughput has an huge drop. rx a minor one, but still present. The same scenario with tx aggregation enabled is pictured at https://drive.google.com/file/d/1jcVIKNZD7K3lHtwKE5W02mpaloudYYih/view showing a regular graph. This issue does not happen with high-cat modems (e.g. SDX20), or at least it does not happen at the throughputs I'm able to test currently: maybe the same could happen when moving close to the maximum rates supported by those modems. Anyway, having the tx aggregation enabled should not hurt. The first attempt to solve this issue was in qmi_wwan qmap implementation, see the discussion at https://lore.kernel.org/netdev/20221019132503.6783-1-dnlplm@gmail.com/ However, it turned out that rmnet was a better candidate for the implementation. Moreover, Greg and Jakub suggested also to use ethtool for the configuration: not sure if I got their advice right, but this patchset add also generic ethtool support for tx aggregation. The patches have been tested mainly against an MDM9207 based modem through USB and SDX55 through PCI (MHI). v2 should address the comments highlighted in the review: the implementation is still in rmnet, due to Subash's request of keeping tx aggregation there. v3 fixes ethtool-netlink.rst content out of table bounds and a W=1 build warning for patch 2. v4 solves a race related to egress_agg_params. ==================== Signed-off-by:
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Daniele Palmas authored
Add support for ETHTOOL_COALESCE_TX_AGGR for configuring the tx aggregation settings. Signed-off-by:
Daniele Palmas <dnlplm@gmail.com> Signed-off-by:
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Daniele Palmas authored
Add tx packets aggregation. Bidirectional TCP throughput tests through iperf with low-cat Thread-x based modems revelead performance issues both in tx and rx. The Windows driver does not show this issue: inspecting USB packets revealed that the only notable change is the driver enabling tx packets aggregation. Tx packets aggregation is by default disabled and can be enabled by increasing the value of ETHTOOL_A_COALESCE_TX_MAX_AGGR_FRAMES. The maximum aggregated size is by default set to a reasonably low value in order to support the majority of modems. This implementation is based on patches available in Code Aurora repositories (msm kernel) whose main authors are Subash Abhinov Kasiviswanathan <subashab@codeaurora.org> Sean Tranchetti <stranche@codeaurora.org> Signed-off-by:
Subash Abhinov Kasiviswanathan <quic_subashab@quicinc.com> Signed-off-by:
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Daniele Palmas authored
Add the following ethtool tx aggregation parameters: ETHTOOL_A_COALESCE_TX_AGGR_MAX_BYTES Maximum size in bytes of a tx aggregated block of frames. ETHTOOL_A_COALESCE_TX_AGGR_MAX_FRAMES Maximum number of frames that can be aggregated into a block. ETHTOOL_A_COALESCE_TX_AGGR_TIME_USECS Time in usecs after the first packet arrival in an aggregated block for the block to be sent. Signed-off-by:
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David S. Miller authored
Arun Ramadoss says: ==================== net: dsa: microchip: add PTP support for KSZ9563/KSZ8563 and LAN937x KSZ9563/KSZ8563 and LAN937x switch are capable for supporting IEEE 1588 PTP protocol. LAN937x has the same PTP register set similar to KSZ9563, hence the implementation has been made common for the KSZ switches. KSZ9563 does not support two step timestamping but LAN937x supports both. Tested the 1step & 2step p2p timestamping in LAN937x and p2p1step timestamping in KSZ9563. This patch series is based on the Christian Eggers PTP support for KSZ9563. Applied the Christian patch and updated as per the latest refactoring of KSZ series code. The features added on top are PTP packet Interrupt implementation based on nested handler, LAN937x two step timestamping and programmable per_out pins. Link: https://www.spinics.net/lists/netdev/msg705531.html Patch v7 -> v8 - set skb->ip_summed = CHECKSUM_NONE after updating the checksum Patch v6 -> v7 - Corrected the misplaced spaces and tabs - Added mutex lock in do_aux_work - Replaced 0/1 with false/true for ts_en - SKB_TX_INPROGRESS flag is set before dsa_enqueue_skb - Removed the fallthrough keyword - pdelay_resp header correction is performed based on KSZ_SKB_CB(skb)->update_correction instead of clone Patch v5 -> v6 - Rebased to latest net-next and renamed from RFC to patch net-next. Patch v4 -> v5 - Replaced irq_domain_add_simple with irq_doamin_add_linear - Used the helper diff_by_scaled_ppm() for adjfine. Patch v3 -> v4 - removed IRQF_TRIGGER_FALLING from the request_threaded_irq of ptp msg - addressed review comments on patch 10 periodic output - added sign off in patch 6 & 9 - reverted to set PTP_1STEP bit for lan937x which is missed during v3 regression Patch v2-> v3 - used port_rxtstamp for reconstructing the absolute timestamp instead of tagger function pointer. - Reverted to setting of 802.1As bit. Patch v1 -> v2 - GPIO perout enable bit is different for LAN937x and KSZ9x. Added new patch for configuring LAN937x programmable pins. - PTP enabled in hardware based on both tx and rx timestamping of all the user ports. - Replaced setting of 802.1AS bit with P2P bit in PTP_MSG_CONF1 register. RFC v2 -> Patch v1 - Changed the patch author based on past patch submission - Changed the commit message prefix as net: dsa: microchip: ptp Individual patch changes are listed in correspondig commits. RFC v1 -> v2 - Added the p2p1step timestamping and conditional execution of 2 step for LAN937x only. - Added the periodic output support ==================== Signed-off-by:
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Arun Ramadoss authored
There is difference in implementation of per_out pins between KSZ9563 and LAN937x. In KSZ9563, Timestamping control register (0x052C) bit 6, if 1 - timestamp input and 0 - trigger output. But it is opposite for LAN937x 1 - trigger output and 0 - timestamp input. As per per_out gpio pins, KSZ9563 has four Led pins and two dedicated gpio pins. But in LAN937x dedicated gpio pins are removed instead there are up to 10 LED pins out of which LED_0 and LED_1 can be mapped to PTP tou 0, 1 or 2. This patch sets the bit 6 in 0x052C register and configure the LED override and source register for LAN937x series of switches alone. Signed-off-by:
Arun Ramadoss <arun.ramadoss@microchip.com> Signed-off-by:
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Arun Ramadoss authored
LAN937x series of switches support 2 step timestamping mechanism. There are timestamp correction calculation performed in ksz_rcv_timestamp and ksz_xmit_timestamp which are applicable only for p2p1step. To check whether the 2 step is enabled or not in tag_ksz.c introduced the helper function in taggger_data to query it from ksz_ptp.c. Based on whether 2 step is enabled or not, timestamp calculation are performed. Signed-off-by:
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Arun Ramadoss authored
There are two programmable pins available for Trigger output unit to generate periodic pulses. This patch add verify_pin for the available 2 pins and configure it with respect to GPIO index for the TOU unit. Tested using testptp ./testptp -i 0 -L 0,2 ./testptp -i 0 -d /dev/ptp0 -p 1000000000 ./testptp -i 1 -L 1,2 ./testptp -i 1 -d /dev/ptp0 -p 100000000 Signed-off-by:
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Christian Eggers authored
LAN937x and KSZ PTP supported switches has Three Trigger output unit. This TOU can used to generate the periodic signal for PTP. TOU has the cycle width register of 32 bit in size and period width register of 24 bit, each value is of 8ns so the pulse width can be maximum 125ms. Tested using ./testptp -d /dev/ptp0 -p 1000000000 -w 100000000 for generating the 10ms pulse width Signed-off-by:
Christian Eggers <ceggers@arri.de> Co-developed-by:
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Christian Eggers authored
For PDelay_Resp messages we will likely have a negative value in the correction field. The switch hardware cannot correctly update such values (produces an off by one error in the UDP checksum), so it must be moved to the time stamp field in the tail tag. Format of the correction field is 48 bit ns + 16 bit fractional ns. After updating the correction field, clone is no longer required hence it is freed. Signed-off-by:
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Christian Eggers authored
This patch adds the routines for transmission of ptp packets. When the ptp pdelay_req packet to be transmitted, it uses the deferred xmit worker to schedule the packets. During irq_setup, interrupt for Sync, Pdelay_req and Pdelay_rsp are enabled. So interrupt is triggered for all three packets. But for p2p1step, we require only time stamp of Pdelay_req packet. Hence to avoid posting of the completion from ISR routine for Sync and Pdelay_resp packets, ts_en flag is introduced. This controls which packets need to processed for timestamp. After the packet is transmitted, ISR is triggered. The time at which packet transmitted is recorded to separate register. This value is reconstructed to absolute time and posted to the user application through socket error queue. Signed-off-by:
Vladimir Oltean <olteanv@gmail.com> Signed-off-by:
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Christian Eggers authored
Rx Timestamping is done through 4 additional bytes in tail tag. Whenever the ptp packet is received, the 4 byte hardware time stamped value is added before 1 byte tail tag. Also, bit 7 in tail tag indicates it as PTP frame. This 4 byte value is extracted from the tail tag and reconstructed to absolute time and assigned to skb hwtstamp. If the packet received in PDelay_Resp, then partial ingress timestamp is subtracted from the correction field. Since user space tools expects to be done in hardware. Signed-off-by:
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Christian Eggers authored
For P2P delay measurement, the ingress time stamp of the PDelay_Req is required for the correction field of the PDelay_Resp. The application echoes back the correction field of the PDelay_Req when sending the PDelay_Resp. Some hardware (like the ZHAW InES PTP time stamping IP core) subtracts the ingress timestamp autonomously from the correction field, so that the hardware only needs to add the egress timestamp on tx. Other hardware (like the Microchip KSZ9563) reports the ingress time stamp via an interrupt and requires that the software provides this time stamp via tail-tag on tx. In order to avoid introducing a further application interface for this, the driver can simply emulate the behavior of the InES device and subtract the ingress time stamp in software from the correction field. On egress, the correction field can either be kept as it is (and the time stamp field in the tail-tag is set to zero) or move the value from the correction field back to the tail-tag. Changing the correction field requires updating the UDP checksum (if UDP is used as transport). Signed-off-by:
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Arun Ramadoss authored
PTP Interrupt mask and status register differ from the global and port interrupt mechanism by two methods. One is that for global/port interrupt enabling we have to clear the bit but for ptp interrupt we have to set the bit. And other is bit12:0 is reserved in ptp interrupt registers. This forced to not use the generic implementation of global/port interrupt method routine. This patch implement the ptp interrupt mechanism to read the timestamp register for sync, pdelay_req and pdelay_resp. Signed-off-by:
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Christian Eggers authored
This patch is used for reconstructing the absolute time from the 32bit hardware time stamping value. The do_aux ioctl is used for reading the ptp hardware clock and store it to global variable. The timestamped value in tail tag during rx and register during tx are 32 bit value (2 bit seconds and 30 bit nanoseconds). The time taken to read entire ptp clock will be time consuming. In order to speed up, the software clock is maintained. This clock time will be added to 32 bit timestamp to get the absolute time stamp. Signed-off-by:
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Arun Ramadoss authored
When the PTP is enabled in hardware bit 6 of PTP_MSG_CONF1 register, the transmit frame needs additional 4 bytes before the tail tag. It is needed for all the transmission packets irrespective of PTP packets or not. The 4-byte timestamp field is 0 for frames other than Pdelay_Resp. For the one-step Pdelay_Resp, the switch needs the receive timestamp of the Pdelay_Req message so that it can put the turnaround time in the correction field. Since PTP has to be enabled for both Transmission and reception timestamping, driver needs to track of the tx and rx setting of the all the user ports in the switch. Two flags hw_tx_en and hw_rx_en are added in ksz_port to track the timestampping setting of each port. When any one of ports has tx or rx timestampping enabled, bit 6 of PTP_MSG_CONF1 is set and it is indicated to tag_ksz.c through tagger bytes. This flag adds 4 additional bytes to the tail tag. When tx and rx timestamping of all the ports are disabled, then 4 bytes are not added. Tested using hwstamp -i <interface> Signed-off-by:
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Christian Eggers authored
This patch adds the routine for get_ts_info, hwstamp_get, set. This enables the PTP support towards userspace applications such as linuxptp. Signed-off-by:
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Christian Eggers authored
This patch implement routines (adjfine, adjtime, gettime and settime) for manipulating the chip's PTP clock. It registers the ptp caps to posix clock register. Signed-off-by:
Florian Fainelli <f.fainelli@gmail.com> Reviewed-by:
Jacob Keller <jacob.e.keller@intel.com> Signed-off-by:
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Jakub Kicinski authored
Emeel Hakim says: ==================== Add support to offload macsec using netlink update This series adds support for offloading macsec as part of the netlink update routine, command example: $ ip link set link eth2 macsec0 type macsec offload mac The above is done using the IFLA_MACSEC_OFFLOAD attribute hence the second patch of dumping this attribute as part of the macsec dump. ==================== Link: https://lore.kernel.org/r/20230111150210.8246-1-ehakim@nvidia.comSigned-off-by:
Jakub Kicinski <kuba@kernel.org>
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Emeel Hakim authored
Support dumping offload netlink attribute in macsec's device attributes dump. Change macsec_get_size to consider the offload attribute in the calculations of the required room for dumping the device netlink attributes. Signed-off-by:
Emeel Hakim <ehakim@nvidia.com> Reviewed-by:
Sabrina Dubroca <sd@queasysnail.net> Signed-off-by:
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Emeel Hakim authored
Add support for changing Macsec offload selection through the netlink layer by implementing the relevant changes in macsec_changelink. Since the handling in macsec_changelink is similar to macsec_upd_offload, update macsec_upd_offload to use a common helper function to avoid duplication. Example for setting offload for a macsec device: ip link set macsec0 type macsec offload mac Signed-off-by: -
Lukas Bulwahn authored
While reviewing dependencies in some Kconfig files, I noticed the redundant dependency "depends on PCI && PCI_MSI". The config PCI_MSI has always, since its introduction, been dependent on the config PCI. So, it is sufficient to just depend on PCI_MSI, and know that the dependency on PCI is implicitly implied. Reduce the dependencies of some network driver configs. No functional change and effective change of Kconfig dependendencies. Signed-off-by:
Lukas Bulwahn <lukas.bulwahn@gmail.com> Acked-by:
Simon Horman <simon.horman@corigine.com> Acked-by:
Dimitris Michailidis <dmichail@fungible.com> Link: https://lore.kernel.org/r/20230111125855.19020-1-lukas.bulwahn@gmail.comSigned-off-by:
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Mengyuan Lou authored
Add mdio bus register for ngbe. The internal phy and external phy need to be handled separately. Add phy changed event detection. Signed-off-by:
Mengyuan Lou <mengyuanlou@net-swift.com> Reviewed-by:
Andrew Lunn <andrew@lunn.ch> Link: https://lore.kernel.org/r/20230111111718.40745-1-mengyuanlou@net-swift.comSigned-off-by:
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Jakub Kicinski authored
Mika Westerberg says: ==================== net: thunderbolt: Add tracepoints This series adds tracepoints and additional logging to the Thunderbolt/USB4 networking driver. These are useful when debugging possible issues. Before that we move the driver into its own directory under drivers/net so that we can add additional files without trashing the network drivers main directory, and update the MAINTAINERS accordingly. v1: https://lore.kernel.org/netdev/20230104081731.45928-1-mika.westerberg@linux.intel.com/ ==================== Link: https://lore.kernel.org/r/20230111062633.1385-1-mika.westerberg@linux.intel.comSigned-off-by:
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Mika Westerberg authored
These are useful when debugging various performance issues. Signed-off-by:
Mika Westerberg <mika.westerberg@linux.intel.com> Acked-by:
Yehezkel Bernat <YehezkelShB@gmail.com> Signed-off-by:
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Mika Westerberg authored
These can be useful when debugging possible issues around USB4NET control packet exchange. Signed-off-by:
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Mika Westerberg authored
We will be adding tracepoints to the driver so instead of littering the main network driver directory, move the driver into its own directory. While there, rename the module to thunderbolt_net (with underscore) to match with the thunderbolt_dma_test convention. Signed-off-by:
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Thomas Gleixner authored
There are no more users of the obsolete interface u64_stats_fetch_begin_irq() and u64_stats_fetch_retry_irq(). Remove the obsolete API. [bigeasy: Split out the bits from a larger patch]. Signed-off-by:
Thomas Gleixner <tglx@linutronix.de> Signed-off-by:
Sebastian Andrzej Siewior <bigeasy@linutronix.de> Link: https://lore.kernel.org/r/20230110160738.974085-1-bigeasy@linutronix.deSigned-off-by:
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git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netJakub Kicinski authored
drivers/net/usb/r8152.c be53771c ("r8152: add vendor/device ID pair for Microsoft Devkit") ec51fbd1 ("r8152: add USB device driver for config selection") https://lore.kernel.org/all/20230113113339.658c4723@canb.auug.org.au/Signed-off-by:
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git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netLinus Torvalds authored
Pull networking fixes from Paolo Abeni: "Including fixes from rxrpc. The rxrpc changes are noticeable large: to address a recent regression has been necessary completing the threaded refactor. Current release - regressions: - rxrpc: - only disconnect calls in the I/O thread - move client call connection to the I/O thread - fix incoming call setup race - eth: mlx5: - restore pkt rate policing support - fix memory leak on updating vport counters Previous releases - regressions: - gro: take care of DODGY packets - ipv6: deduct extension header length in rawv6_push_pending_frames - tipc: fix unexpected link reset due to discovery messages Previous releases - always broken: - sched: disallow noqueue for qdisc classes - eth: ice: fix potential memory leak in ice_gnss_tty_write() - eth: ixgbe: fix pci device refcount leak - eth: mlx5: - fix command stats access after free - fix macsec possible null dereference when updating MAC security entity (SecY)" * tag 'net-6.2-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (64 commits) r8152: add vendor/device ID pair for Microsoft Devkit net: stmmac: add aux timestamps fifo clearance wait bnxt: make sure we return pages to the pool net: hns3: fix wrong use of rss size during VF rss config ipv6: raw: Deduct extension header length in rawv6_push_pending_frames net: lan966x: check for ptp to be enabled in lan966x_ptp_deinit() net: sched: disallow noqueue for qdisc classes iavf/iavf_main: actually log ->src mask when talking about it igc: Fix PPS delta between two synchronized end-points ixgbe: fix pci device refcount leak octeontx2-pf: Fix resource leakage in VF driver unbind selftests/net: l2_tos_ttl_inherit.sh: Ensure environment cleanup on failure. selftests/net: l2_tos_ttl_inherit.sh: Run tests in their own netns. selftests/net: l2_tos_ttl_inherit.sh: Set IPv6 addresses with "nodad". net/mlx5e: Fix macsec possible null dereference when updating MAC security entity (SecY) net/mlx5e: Fix macsec ssci attribute handling in offload path net/mlx5: E-switch, Coverity: overlapping copy net/mlx5e: Don't support encap rules with gbp option net/mlx5: Fix ptp max frequency adjustment range net/mlx5e: Fix memory leak on updating vport counters ...
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- 12 Jan, 2023 9 commits
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git://git.kernel.org/pub/scm/linux/kernel/git/s390/linuxLinus Torvalds authored
Pull s390 fixes from Heiko Carstens: - Add various missing READ_ONCE() to cmpxchg() loops prevent the compiler from potentially generating incorrect code. This includes a rather large change to the s390 specific hardware sampling code and its current use of cmpxchg_double(). Do the fix now to get it out of the way of Peter Zijlstra's cmpxchg128() work, and have something that can be backported. The added new code includes a private 128 bit cmpxchg variant which will be removed again after Peter's rework is available. Also note that this 128 bit cmpxchg variant is used to implement 128 bit READ_ONCE(), while strictly speaking it wouldn't be necessary, and _READ_ONCE() should also be sufficient; even though it isn't obvious for all converted locations that this is the case. Therefore use this implementation for for the sake of clarity and consistency for now. - Fix ipl report address handling to avoid kdump failures/hangs. - Fix misuse of #(el)if in kernel decompressor. - Define RUNTIME_DISCARD_EXIT to fix link error with GNU ld < 2.36, caused by the recently changed discard behaviour. - Make sure _edata and _end symbols are always page aligned. - The current header guard DEBUG_H in one of the s390 specific header files is too generic and conflicts with the ath9k wireless driver. Add an _ASM_S390_ prefix to the guard to make it unique. - Update defconfigs. * tag 's390-6.2-2' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: s390: update defconfigs KVM: s390: interrupt: use READ_ONCE() before cmpxchg() s390/percpu: add READ_ONCE() to arch_this_cpu_to_op_simple() s390/cpum_sf: add READ_ONCE() semantics to compare and swap loops s390/kexec: fix ipl report address for kdump s390: fix -Wundef warning for CONFIG_KERNEL_ZSTD s390: define RUNTIME_DISCARD_EXIT to fix link error with GNU ld < 2.36 s390: expicitly align _edata and _end symbols on page boundary s390/debug: add _ASM_S390_ prefix to header guard
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git://git.kernel.org/pub/scm/linux/kernel/git/xen/tipLinus Torvalds authored
Pull xen fixes from Juergen Gross: - two cleanup patches - a fix of a memory leak in the Xen pvfront driver - a fix of a locking issue in the Xen hypervisor console driver * tag 'for-linus-6.2-rc4-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip: xen/pvcalls: free active map buffer on pvcalls_front_free_map hvc/xen: lock console list traversal x86/xen: Remove the unused function p2m_index() xen: make remove callback of xen driver void returned
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull timer doc fixes from Ingo Molnar: - Fix various DocBook formatting errors in kernel/time/ that generated (justified) warnings during a kernel-doc build. * tag 'timers-urgent-2023-01-12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: time: Fix various kernel-doc problems
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull perf events hw enablement from Ingo Molnar: - More hardware-enablement for Intel Meteor Lake & Emerald Rapid systems: pure model ID enumeration additions that do not affect other systems. * tag 'perf-urgent-2023-01-12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: perf/x86/intel/uncore: Add Emerald Rapids perf/x86/msr: Add Emerald Rapids perf/x86/msr: Add Meteor Lake support perf/x86/cstate: Add Meteor Lake support
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull scheduler fixes from Ingo Molnar: - Fix scheduler frequency invariance bug related to overly long tickless periods triggering an integer overflow and disabling the feature. - Fix use-after-free bug in dup_user_cpus_ptr(). - Fix do_set_cpus_allowed() deadlock scenarios related to calling kfree() with the pi_lock held. NOTE: the rcu_free() is the 'lazy' solution here - we looked at patches to free the structure after the pi_lock got dropped, but that looked quite a bit messier - and none of this is truly performance critical. We can revisit this if it's too lazy of a solution ... * tag 'sched-urgent-2023-01-12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: sched/core: Use kfree_rcu() in do_set_cpus_allowed() sched/core: Fix use-after-free bug in dup_user_cpus_ptr() sched/core: Fix arch_scale_freq_tick() on tickless systems
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull objtool fix from Ingo Molnar: - Fix objtool to be more permissive with hand-written assembly that uses non-function symbols in executable sections. * tag 'core-urgent-2023-01-12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: objtool: Tolerate STT_NOTYPE symbols at end of section
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Linus Torvalds authored
Merge tag 'urgent-nolibc.2023.01.09a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu Pull nolibc fixes from Paul McKenney: - The fd_set structure was incorrectly defined as arrays of u32 instead of long, which breaks BE64. Fix courtesy of Sven Schnelle. - S_ISxxx macros were incorrectly testing the bits after applying them instead of bitwise ANDing S_FMT with the value. Fix from Warner Losh. - The mips code was randomly broken due to an unprotected "noreorder" directive in the _start code that could prevent the assembler from filling delayed slots. This in turn resulted in random other instructions being placed into those slots. Fix courtesy of Willy Tarreau. - The current nolibc header layout refrains from including files that are not explicitly included by the code using nolibc. Unfortunately, this causes build failures when such files contain definitions that are used (for example) by libgcc. Example definitions include raise() and memset(), which are called by some architectures, but only at certain optimization levels. Fix courtesy of Willy Tarreau. - gcc 11.3 in ARM thumb2 mode at -O2 recognized a memset() construction inside the memset() definition. The compiler replaced this construction with a call to... memset(). Userland cannot be forced to build with -ffreestanding, so an empty asm() statement was introduced into the loop the loop in order to prevent the compiler from making this unproductive transformation. Fix courtesy of Willy Tarreau. - Most of the O_* macros were wrong on RISCV because their octal values were coded as hexadecimal. This resulted in the getdents64() selftest failing. Fix courtesy of Willy Tarreau. This was tested on x86_64, i386, armv5, armv7, thumb1, thumb2, mips and riscv, all at -O0, -Os and -O3. * tag 'urgent-nolibc.2023.01.09a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu: tools/nolibc: fix the O_* fcntl/open macro definitions for riscv tools/nolibc: prevent gcc from making memset() loop over itself tools/nolibc: fix missing includes causing build issues at -O0 tools/nolibc: restore mips branch ordering in the _start block tools/nolibc: Fix S_ISxxx macros nolibc: fix fd_set type
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Andre Przywara authored
The Microsoft Devkit 2023 is a an ARM64 based machine featuring a Realtek 8153 USB3.0-to-GBit Ethernet adapter. As in their other machines, Microsoft uses a custom USB device ID. Add the respective ID values to the driver. This makes Ethernet work on the MS Devkit device. The chip has been visually confirmed to be a RTL8153. Signed-off-by:
Andre Przywara <andre.przywara@arm.com> Link: https://lore.kernel.org/r/20230111133228.190801-1-andre.przywara@arm.comSigned-off-by:
Paolo Abeni <pabeni@redhat.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spiLinus Torvalds authored
Pull spi fixes from Mark Brown: - Fixes for long standing issues with accesses to spidev->spi during teardown in the spidev userspace driver. - Rename the newly added spi-cs-setup-ns DT property to be more in line with our other delay properties before it becomes ABI. - A few driver specific fixes. * tag 'spi-fix-v6.2-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: spi: spidev: remove debug messages that access spidev->spi without locking spi: spidev: fix a race condition when accessing spidev->spi spi: Rename spi-cs-setup-ns property to spi-cs-setup-delay-ns spi: dt-bindings: Rename spi-cs-setup-ns to spi-cs-setup-delay-ns spi: cadence: Fix busy cycles calculation spi: mediatek: Enable irq before the spi registration
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