- 12 Mar, 2022 18 commits
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Eric Dumazet authored
Before adding yet another possibly contended atomic_long_t, it is time to add per-cpu storage for existing ones: dev->tx_dropped, dev->rx_dropped, and dev->rx_nohandler Because many devices do not have to increment such counters, allocate the per-cpu storage on demand, so that dev_get_stats() does not have to spend considerable time folding zero counters. Note that some drivers have abused these counters which were supposed to be only used by core networking stack. v4: should use per_cpu_ptr() in dev_get_stats() (Jakub) v3: added a READ_ONCE() in netdev_core_stats_alloc() (Paolo) v2: add a missing include (reported by kernel test robot <lkp@intel.com>) Change in netdev_core_stats_alloc() (Jakub) Signed-off-by:Eric Dumazet <edumazet@google.com> Cc: jeffreyji <jeffreyji@google.com> Reviewed-by:
Brian Vazquez <brianvv@google.com> Reviewed-by:
Jakub Kicinski <kuba@kernel.org> Acked-by:
Paolo Abeni <pabeni@redhat.com> Link: https://lore.kernel.org/r/20220311051420.2608812-1-eric.dumazet@gmail.comSigned-off-by:
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Jakub Kicinski authored
Simon Horman says: ==================== nfp: preliminary support for NFP-3800 This series is the first step to add support to the NFP driver for the new NFP-3800 device. In this first series the goal is to clean up small issues found while adding support for the new device, prepare an abstraction of the differences between the already supported devices and the new Kestrel device and add the new PCI ID. * Patch 1/11 and 2/11 starts by removing some dead code and incorrect assumptions found while working Kestrel support. Patch 3/11, 4/11 and 5/11 cleans up and prepares for adding the new PCI ID for Kestrel. * Patches 6/11, 7/11, 8/11, 9/11, 10/11 adds, plumb and populates a device information structure to abstract the differences between the existed supported devices (NFP-4000, NFP-5000 and NFP-6000) and the new device (NFP3800). * Finally patch 11/11 adds the new PCI ID for Kestrel. More work is needed to drive the new NFP-3800 device after this first batch of patches the foundation is prepared for the follow up work. Thanks to the work of all those who contributed to this work. ==================== Link: https://lore.kernel.org/r/20220311104306.28357-1-simon.horman@corigine.comSigned-off-by:
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Dirk van der Merwe authored
Enable binding the nfp driver to NFP3800 and NFP3803 devices. The PCIE_SRAM offset is different for the NFP3800 device, which also only supports a single explicit group. Changes to Dirk's work: * 48-bit dma addressing is not ready yet. Keep 40-bit dma addressing for NFP3800. Signed-off-by:
Dirk van der Merwe <dirk.vandermerwe@netronome.com> Signed-off-by:
Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by:
Fei Qin <fei.qin@corigine.com> Signed-off-by:
Simon Horman <simon.horman@corigine.com> Signed-off-by:
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Jakub Kicinski authored
NFP3800 has slightly different queue controller range bounds. Use the static chip data instead of defines. This commit still assumes unchanged descriptor format. Later datapath changes will allow adjusting for descriptor accounting. Signed-off-by:
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Jakub Kicinski authored
The queue controller (QCP) is accessed based on a device specific offset. The NFP3800 device also supports more queues. Furthermore, the NFP3800 VFs also access the QCP differently to how the NFP6000 VFs accesses it, though still indirectly. Fortunately, we can remove the offset all together for both VF types. This is safe for NFP6000 VFs since the offset was effectively a wrap around and only used for convenience to have it set the same as the NFP6000 PF. Use nfp_dev_info to store queue controller parameters. Signed-off-by:
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Jakub Kicinski authored
In preparation for new chips instead of defines use dev_info constants to store DMA mask length. Signed-off-by:
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Jakub Kicinski authored
NFP3800 uses a different PCIe configuration to CPP expansion BAR offsets. We don't need to differentiate between the NFP4000, NFP5000 and NFP6000 since they all use the same offsets. Signed-off-by:
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Jakub Kicinski authored
In preparation for supporting new chip add a driver data structure which will hold per-chip-version information such as register offsets. Plumb it through to the relevant functions (nfpcore and nfp_net). For now only a very simple member holding chip names is added, following commits will add more. Signed-off-by:
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Jakub Kicinski authored
Make sure the device ID tables are in ascending order. Signed-off-by:
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Dirk van der Merwe authored
The model number for NFP3800 and newer devices can be completely derived from PluDevice register without subtracting 0x10. Signed-off-by:
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Dirk van der Merwe authored
The PCI_DEVICE_ID_NETRONOME_NFP6000_VF is available for use and should be used instead of the PCI_DEVICE_NFP6000VF. Meanwhile, PCI_DEVICE_NFP6000VF PCI ID is removed for not being used. Signed-off-by:
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Christo du Toit authored
Multiple writes cause intermediate pointer values that do not end on complete TX descriptors. The QCP peripheral on the NFP provides a number of access modes. In some access modes, the maximum amount to add must be restricted to a 6bit value. The particular access mode used by _nfp_qcp_ptr_add() has no such restrictions, so the "< NFP_QCP_MAX_ADD" test is unnecessary. Note that trying to add more that the configured ring size in a single add will cause a QCP overflow, caught and handled by the QCP peripheral. Signed-off-by:
Christo du Toit <christo.du.toit@netronome.com> Signed-off-by:
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Jakub Kicinski authored
NFP driver ABI contains a bit for ring prioritization which was never implemented in the initially envisioned form. Remove it, and open up the possibility of reclaiming for other uses. Signed-off-by:
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Yang Li authored
The print function dev_err() is redundant because platform_get_irq() already prints an error. Eliminate the follow coccicheck warning: ./drivers/net/ethernet/8390/mcf8390.c:414:2-9: line 414 is redundant because platform_get_irq() already prints an error Reported-by:
Abaci Robot <abaci@linux.alibaba.com> Signed-off-by:
Yang Li <yang.lee@linux.alibaba.com> Link: https://lore.kernel.org/r/20220311001756.12234-1-yang.lee@linux.alibaba.comSigned-off-by:
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Jakub Kicinski authored
netdev_name_node_alt_create() and netdev_name_node_alt_destroy() are only called by rtnetlink, so no need for exports. Reviewed-by:
David Ahern <dsahern@kernel.org> Link: https://lore.kernel.org/r/20220310223952.558779-1-kuba@kernel.orgSigned-off-by:
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Saurabh Sengar authored
In function netvsc_process_raw_pkt for VM_PKT_DATA_USING_XFER_PAGES case there is already a 'return' statement which results 'break' as dead code Signed-off-by:
Saurabh Sengar <ssengar@linux.microsoft.com> Reviewed-by:
Haiyang Zhang <haiyangz@microsoft.com> Link: https://lore.kernel.org/r/1646933534-29493-1-git-send-email-ssengar@linux.microsoft.comSigned-off-by:
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Christoph Hellwig authored
Both functions are only used by core networking code. Signed-off-by:
Christoph Hellwig <hch@lst.de> Link: https://lore.kernel.org/r/20220310143229.895319-1-hch@lst.deSigned-off-by:
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Alex Elder authored
In review for commit 8ee7ec48 ("net: ipa: embed interconnect array in the power structure"), Jakub Kicinski suggested that a follow-up patch use struct_size() when computing the size of the IPA power structure, which ends with a flexible array member. Do that. Suggested-by:
Alex Elder <elder@linaro.org> Link: https://lore.kernel.org/r/20220311162423.872645-1-elder@linaro.orgSigned-off-by:
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- 11 Mar, 2022 22 commits
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Jakub Kicinski authored
Merge tag 'wireless-next-2022-03-11' of git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next Johannes Berg says: ==================== brcmfmac * add BCM43454/6 support rtw89 * add support for 160 MHz channels and 6 GHz band * hardware scan support iwlwifi * support UHB TAS enablement via BIOS * remove a bunch of W=1 warnings * add support for channel switch offload * support 32 Rx AMPDU sessions in newer devices * add support for a couple of new devices * add support for band disablement via BIOS mt76 * mt7915 thermal management improvements * SAR support for more mt76 drivers * mt7986 wmac support on mt7915 ath11k * debugfs interface to configure firmware debug log level * debugfs interface to test Target Wake Time (TWT) * provide 802.11ax High Efficiency (HE) data via radiotap ath9k * use hw_random API instead of directly dumping into random.c wcn36xx * fix wcn3660 to work on 5 GHz band ath6kl * add device ID for WLU5150-D81 cfg80211/mac80211 * initial EHT (from 802.11be) support (EHT rates, 320 MHz, larger block-ack) * support disconnect on HW restart * tag 'wireless-next-2022-03-11' of git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next: (247 commits) mac80211: Add support to trigger sta disconnect on hardware restart mac80211: fix potential double free on mesh join mac80211: correct legacy rates check in ieee80211_calc_rx_airtime nl80211: fix typo of NL80211_IF_TYPE_OCB in documentation mac80211: Use GFP_KERNEL instead of GFP_ATOMIC when possible mac80211: replace DEFINE_SIMPLE_ATTRIBUTE with DEFINE_DEBUGFS_ATTRIBUTE rtw89: 8852c: process logic efuse map rtw89: 8852c: process efuse of phycap rtw89: support DAV efuse reading operation rtw89: 8852c: add chip::dle_mem rtw89: add page_regs to handle v1 chips rtw89: add chip_info::{h2c,c2h}_reg to support more chips rtw89: add hci_func_en_addr to support variant generation rtw89: add power_{on/off}_func rtw89: read chip version depends on chip ID rtw89: pci: use a struct to describe all registers address related to DMA channel rtw89: pci: add V1 of PCI channel address rtw89: pci: add struct rtw89_pci_info rtw89: 8852c: add 8852c empty files MAINTAINERS: add devicetree bindings entry for mt76 ... ==================== Link: https://lore.kernel.org/r/20220311124029.213470-1-johannes@sipsolutions.netSigned-off-by:
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David S. Miller authored
Jonathan Lemon says: ==================== ptp: ocp: support for new firmware This series contains support for new firmware features for the timecard. v1 -> v2: roundup() is not 32-bit safe, use DIV_ROUND_UP_ULL ==================== Signed-off-by:David S. Miller <davem@davemloft.net>
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Jonathan Lemon authored
Add sysfs nodes for the frequency generator and signal counters. Update SMA selector lists for these, and also add the new 'None', 'VCC' 'GND' selectors. Signed-off-by:
Jonathan Lemon <jonathan.lemon@gmail.com> Signed-off-by:
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Jonathan Lemon authored
The timecard now has 4 general purpose timestampers. Signed-off-by:
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Jonathan Lemon authored
Input signals can be steered to any of the frequency counters. The counter measures the frequency over a number of seconds: echo 0 > freq1/seconds = turns off measurement echo 1 > freq1/seconds = sets period & turns on measurment. Signed-off-by:
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Jonathan Lemon authored
The signal generators can be programmed either via the sysfs file or through a PTP_CLK_REQ_PEROUT ioctl request. Signed-off-by:
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Jonathan Lemon authored
Newer firmware provides 4 programmable signal generators, add support for those here. The signal generators provide the ability to set the period, duty cycle, phase offset, and polarity, with new values defaulting to prior values. The period and phase offset are specified in nanoseconds. E.g: period [duty [phase [polarity]]] echo 500000000 > signal # 1/2 second period echo 1000000 40 100 > signal # 1ms period, 40% on, offset 100ns echo 0 > signal # turn off generator Signed-off-by:
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Jonathan Lemon authored
Add the ability to group sysfs nodes behind a firmware feature check. This way non-present sysfs attributes are omitted on older firmware, which does not have newer features. This will be used in the upcoming patches which adds more features to the timecard. Signed-off-by:
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Jonathan Lemon authored
These will provide constant outputs. Signed-off-by:
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Jonathan Lemon authored
As there are may be 2 GNSS outputs, rename the first one for clarity. This also works around a parsing issue when specifying selectors. Signed-off-by:
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Jonathan Lemon authored
This adds support for the "IN: None" selector, which disables the input on a sma pin. This should be compatible with old firmware (the firmware will ignore it if not supported). Signed-off-by:
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Jonathan Lemon authored
Assuming the firmware allows it, the direction of each SMA connector is no longer fixed. Handle remapping directions for each pin. Signed-off-by:
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Horatiu Vultur authored
When doing manual injection of the frame, it is required to check if the TX FIFO is ready to accept the next word of the frame. For this we are using 'readx_poll_timeout_atomic', the only problem is that before it actually checks the status, is determining the time when to finish polling the status. Which seems to be an expensive operation. Therefore check the status of the TX FIFO before calling 'readx_poll_timeout_atomic'. Doing this will improve the TX bitrate by ~70%. Because 99% the FIFO is ready by that time. The measurements were done using iperf3. Before: [ ID] Interval Transfer Bitrate Retr [ 5] 0.00-10.03 sec 55.2 MBytes 46.2 Mbits/sec 0 sender [ 5] 0.00-10.04 sec 53.8 MBytes 45.0 Mbits/sec receiver After: [ ID] Interval Transfer Bitrate Retr [ 5] 0.00-10.10 sec 95.0 MBytes 78.9 Mbits/sec 0 sender [ 5] 0.00-10.11 sec 95.0 MBytes 78.8 Mbits/sec receiver Signed-off-by:
Horatiu Vultur <horatiu.vultur@microchip.com> Reviewed-by:
Andrew Lunn <andrew@lunn.ch> Signed-off-by:
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Yihao Han authored
Remove dev_err() messages after platform_get_irq*() failures. platform_get_irq() already prints an error. Generated by: scripts/coccinelle/api/platform_get_irq.cocci Signed-off-by:
Yihao Han <hanyihao@vivo.com> Signed-off-by:
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Kurt Kanzenbach authored
Commit bf08824a ("flow_dissector: Add support for HSR") added support for HSR within the flow dissector. However, it only works for HSR in version 1. Version 0 uses a different Ether Type. Add support for it. Reported-by:
Anthony Harivel <anthony.harivel@linutronix.de> Signed-off-by:
Kurt Kanzenbach <kurt@linutronix.de> Signed-off-by:
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Minghao Chi authored
It is not recommened to use platform_get_resource(pdev, IORESOURCE_IRQ) for requesting IRQ's resources any more, as they can be not ready yet in case of DT-booting. platform_get_irq() instead is a recommended way for getting IRQ even if it was not retrieved earlier. It also makes code simpler because we're getting "int" value right away and no conversion from resource to int is required. Reported-by:
Zeal Robot <zealci@zte.com.cn> Signed-off-by:
Minghao Chi <chi.minghao@zte.com.cn> Signed-off-by:
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Lad Prabhakar authored
platform_get_resource(pdev, IORESOURCE_IRQ, ..) relies on static allocation of IRQ resources in DT core code, this causes an issue when using hierarchical interrupt domains using "interrupts" property in the node as this bypasses the hierarchical setup and messes up the irq chaining. In preparation for removal of static setup of IRQ resource from DT core code use platform_get_irq() for DT users only. While at it propagate error code in emac_dev_stop() in case platform_get_irq_optional() fails. Signed-off-by:
Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> Signed-off-by:
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Siddharth Vadapalli authored
Convert am65-cpsw driver and am65-cpsw ethtool to use Phylink APIs as described at Documentation/networking/sfp-phylink.rst. All calls to Phy APIs are replaced with their equivalent Phylink APIs. No functional change intended. Use Phylink instead of conventional Phylib, in preparation to add support for SGMII/QSGMII modes. Signed-off-by:
Siddharth Vadapalli <s-vadapalli@ti.com> Signed-off-by:
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Youghandhar Chintala authored
Currently in case of target hardware restart, we just reconfig and re-enable the security keys and enable the network queues to start data traffic back from where it was interrupted. Many ath10k wifi chipsets have sequence numbers for the data packets assigned by firmware and the mac sequence number will restart from zero after target hardware restart leading to mismatch in the sequence number expected by the remote peer vs the sequence number of the frame sent by the target firmware. This mismatch in sequence number will cause out-of-order packets on the remote peer and all the frames sent by the device are dropped until we reach the sequence number which was sent before we restarted the target hardware In order to fix this, we trigger a sta disconnect, in case of target hw restart. After this there will be a fresh connection and thereby avoiding the dropping of frames by remote peer. The right fix would be to pull the entire data path into the host which is not feasible or would need lots of complex changes and will still be inefficient. Tested on ath10k using WCN3990, QCA6174 Signed-off-by:
Youghandhar Chintala <youghand@codeaurora.org> Link: https://lore.kernel.org/r/20220308115325.5246-2-youghand@codeaurora.orgSigned-off-by:
Johannes Berg <johannes.berg@intel.com>
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Christophe Leroy authored
Today's implementation of csum_shift() leads to branching based on parity of 'offset' 000002f8 <csum_block_add>: 2f8: 70 a5 00 01 andi. r5,r5,1 2fc: 41 a2 00 08 beq 304 <csum_block_add+0xc> 300: 54 84 c0 3e rotlwi r4,r4,24 304: 7c 63 20 14 addc r3,r3,r4 308: 7c 63 01 94 addze r3,r3 30c: 4e 80 00 20 blr Use first bit of 'offset' directly as input of the rotation instead of branching. 000002f8 <csum_block_add>: 2f8: 54 a5 1f 38 rlwinm r5,r5,3,28,28 2fc: 20 a5 00 20 subfic r5,r5,32 300: 5c 84 28 3e rotlw r4,r4,r5 304: 7c 63 20 14 addc r3,r3,r4 308: 7c 63 01 94 addze r3,r3 30c: 4e 80 00 20 blr And change to left shift instead of right shift to skip one more instruction. This has no impact on the final sum. 000002f8 <csum_block_add>: 2f8: 54 a5 1f 38 rlwinm r5,r5,3,28,28 2fc: 5c 84 28 3e rotlw r4,r4,r5 300: 7c 63 20 14 addc r3,r3,r4 304: 7c 63 01 94 addze r3,r3 308: 4e 80 00 20 blr Seems like only powerpc benefits from a branchless implementation. Other main architectures like ARM or X86 get better code with the generic implementation and its branch. Signed-off-by:
Christophe Leroy <christophe.leroy@csgroup.eu> Signed-off-by:
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git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linuxDavid S. Miller authored
Saeed Mahameed says: ==================== mlx5-updates-2022-03-10 1) Leon removes useless includes from both mlx5 and mlx4 2) Tariq adds node awareness to some object allocations 3) Gal Cleanups and improvements to EEPROM query 4) Paul adds Software steering to Connection Tracking, to speed up CT Rules insertion. Paul Blakey Says: ================= To improve insertion rate, this series allows for using software steering API directly instead of going through the fs_core layer. This can be done for CT because it doesn't need fs_core layer extra facilities, such as autogroups, FTE IDs and modifications (which require a copy of the flow key/mask). Skipping fs_core layer also allows to create the software steering objects (dr_* objects) ahead of time and re-use them for multiple rules, whereas software steering under fs_core creates them on the fly and discards them. This in turn increased insertion rate. The series first introduces a lightweight CT flow steering provider with the first implementations using fs_core layer, and moves CT to use it. The next patches implement a provider using software steering directly, bypassing fs_core, and uses it if software steering is available. ================= ==================== Signed-off-by: -
Linus Lüssing authored
While commit 6a01afcf ("mac80211: mesh: Free ie data when leaving mesh") fixed a memory leak on mesh leave / teardown it introduced a potential memory corruption caused by a double free when rejoining the mesh: ieee80211_leave_mesh() -> kfree(sdata->u.mesh.ie); ... ieee80211_join_mesh() -> copy_mesh_setup() -> old_ie = ifmsh->ie; -> kfree(old_ie); This double free / kernel panics can be reproduced by using wpa_supplicant with an encrypted mesh (if set up without encryption via "iw" then ifmsh->ie is always NULL, which avoids this issue). And then calling: $ iw dev mesh0 mesh leave $ iw dev mesh0 mesh join my-mesh Note that typically these commands are not used / working when using wpa_supplicant. And it seems that wpa_supplicant or wpa_cli are going through a NETDEV_DOWN/NETDEV_UP cycle between a mesh leave and mesh join where the NETDEV_UP resets the mesh.ie to NULL via a memcpy of default_mesh_setup in cfg80211_netdev_notifier_call, which then avoids the memory corruption, too. The issue was first observed in an application which was not using wpa_supplicant but "Senf" instead, which implements its own calls to nl80211. Fixing the issue by removing the kfree()'ing of the mesh IE in the mesh join function and leaving it solely up to the mesh leave to free the mesh IE. Cc: stable@vger.kernel.org Fixes: 6a01afcf ("mac80211: mesh: Free ie data when leaving mesh") Reported-by:
Matthias Kretschmer <mathias.kretschmer@fit.fraunhofer.de> Signed-off-by:
Linus Lüssing <ll@simonwunderlich.de> Tested-by:
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