- Sep 17, 2023
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Arkadiusz Kubalewski authored
Add firmware admin command to access clock generation unit configuration, it is required to enable Extended PTP and SyncE features in the driver. Add definitions of possible hardware variations of input and output pins related to clock generation unit and functions to access the data. Signed-off-by:
Arkadiusz Kubalewski <arkadiusz.kubalewski@intel.com> Signed-off-by:
Vadim Fedorenko <vadim.fedorenko@linux.dev> Signed-off-by:
Jiri Pirko <jiri@nvidia.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Jiri Pirko authored
In case netdevice represents a SyncE port, the user needs to understand the connection between netdevice and associated DPLL pin. There might me multiple netdevices pointing to the same pin, in case of VF/SF implementation. Add a IFLA Netlink attribute to nest the DPLL pin handle, similar to how it is implemented for devlink port. Add a struct dpll_pin pointer to netdev and protect access to it by RTNL. Expose netdev_dpll_pin_set() and netdev_dpll_pin_clear() helpers to the drivers so they can set/clear the DPLL pin relationship to netdev. Note that during the lifetime of struct dpll_pin the pin handle does not change. Therefore it is save to access it lockless. It is drivers responsibility to call netdev_dpll_pin_clear() before dpll_pin_put(). Signed-off-by:
Jiri Pirko <jiri@nvidia.com> Signed-off-by:
Arkadiusz Kubalewski <arkadiusz.kubalewski@intel.com> Signed-off-by:
Vadim Fedorenko <vadim.fedorenko@linux.dev> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Vadim Fedorenko authored
DPLL framework is used to represent and configure DPLL devices in systems. Each device that has DPLL and can configure inputs and outputs can use this framework. Implement dpll netlink framework functions for enablement of dpll subsystem netlink family. Co-developed-by:
Milena Olech <milena.olech@intel.com> Signed-off-by:
Milena Olech <milena.olech@intel.com> Co-developed-by:
Michal Michalik <michal.michalik@intel.com> Signed-off-by:
Michal Michalik <michal.michalik@intel.com> Signed-off-by:
Vadim Fedorenko <vadim.fedorenko@linux.dev> Co-developed-by:
Arkadiusz Kubalewski <arkadiusz.kubalewski@intel.com> Signed-off-by:
Arkadiusz Kubalewski <arkadiusz.kubalewski@intel.com> Signed-off-by:
Jiri Pirko <jiri@nvidia.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Vadim Fedorenko authored
DPLL framework is used to represent and configure DPLL devices in systems. Each device that has DPLL and can configure inputs and outputs can use this framework. Implement core framework functions for further interactions with device drivers implementing dpll subsystem, as well as for interactions of DPLL netlink framework part with the subsystem itself. Co-developed-by:
Milena Olech <milena.olech@intel.com> Signed-off-by:
Milena Olech <milena.olech@intel.com> Co-developed-by:
Michal Michalik <michal.michalik@intel.com> Signed-off-by:
Michal Michalik <michal.michalik@intel.com> Signed-off-by:
Vadim Fedorenko <vadim.fedorenko@linux.dev> Co-developed-by:
Arkadiusz Kubalewski <arkadiusz.kubalewski@intel.com> Signed-off-by:
Arkadiusz Kubalewski <arkadiusz.kubalewski@intel.com> Signed-off-by:
Jiri Pirko <jiri@nvidia.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Vadim Fedorenko authored
Add a protocol spec for DPLL. Add code generated from the spec. Signed-off-by:
Jakub Kicinski <kuba@kernel.org> Signed-off-by:
Michal Michalik <michal.michalik@intel.com> Signed-off-by:
Vadim Fedorenko <vadim.fedorenko@linux.dev> Signed-off-by:
Arkadiusz Kubalewski <arkadiusz.kubalewski@intel.com> Signed-off-by:
Jiri Pirko <jiri@nvidia.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Vadim Fedorenko authored
Add documentation explaining common netlink interface to configure DPLL devices and monitoring events. Common way to implement DPLL device in a driver is also covered. Co-developed-by:
Bagas Sanjaya <bagasdotme@gmail.com> Signed-off-by:
Bagas Sanjaya <bagasdotme@gmail.com> Signed-off-by:
Vadim Fedorenko <vadim.fedorenko@linux.dev> Signed-off-by:
Arkadiusz Kubalewski <arkadiusz.kubalewski@intel.com> Signed-off-by:
Jiri Pirko <jiri@nvidia.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/nextDavid S. Miller authored
-queue Tony Nguyen says: ==================== Support rx-fcs on/off for VFs Ahmed Zaki says: Allow the user to turn on/off the CRC/FCS stripping through ethtool. We first add the CRC offload capability in the virtchannel, then the feature is enabled in ice and iavf drivers. We make sure that the netdev features are fixed such that CRC stripping cannot be disabled if VLAN rx offload (VLAN strip) is enabled. Also, VLAN stripping cannot be enabled unless CRC stripping is ON. Testing was done using tcpdump to make sure that the CRC is included in the frame after: # ethtool -K <interface> rx-fcs on and is not included when it is back "off". Also, ethtool should return an error for the above command if "rx-vlan-offload" is already on and at least one VLAN interface/filter exists on the VF. ==================== Signed-off-by:
David S. Miller <davem@davemloft.net>
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- Sep 16, 2023
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David S. Miller authored
Aananth V says: ==================== tcp: new TCP_INFO stats for RTO events The 2023 SIGCOMM paper "Improving Network Availability with Protective ReRoute" has indicated Linux TCP's RTO-triggered txhash rehashing can effectively reduce application disruption during outages. To better measure the efficacy of this feature, this patch set adds three more detailed stats during RTO recovery and exports via TCP_INFO. Applications and monitoring systems can leverage this data to measure the network path diversity and end-to-end repair latency during network outages to improve their network infrastructure. Patch 1 fixes a bug in TFO SYNACK that we encountered while testing these new metrics. Patch 2 adds the new metrics to tcp_sock and tcp_info. v2: Addressed feedback from a check bot in patch 2 by removing the inline keyword from the tcp_update_rto_time and tcp_update_rto_stats functions. Changed a comment in include/net/tcp.h to fit under 80 words. ==================== Signed-off-by:
David S. Miller <davem@davemloft.net>
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Aananth V authored
The 2023 SIGCOMM paper "Improving Network Availability with Protective ReRoute" has indicated Linux TCP's RTO-triggered txhash rehashing can effectively reduce application disruption during outages. To better measure the efficacy of this feature, this patch adds three more detailed stats during RTO recovery and exports via TCP_INFO. Applications and monitoring systems can leverage this data to measure the network path diversity and end-to-end repair latency during network outages to improve their network infrastructure. The following counters are added to tcp_sock in order to track RTO events over the lifetime of a TCP socket. 1. u16 total_rto - Counts the total number of RTO timeouts. 2. u16 total_rto_recoveries - Counts the total number of RTO recoveries. 3. u32 total_rto_time - Counts the total time spent (ms) in RTO recoveries. (time spent in CA_Loss and CA_Recovery states) To compute total_rto_time, we add a new u32 rto_stamp field to tcp_sock. rto_stamp records the start timestamp (ms) of the last RTO recovery (CA_Loss). Corresponding fields are also added to the tcp_info struct. Signed-off-by:
Aananth V <aananthv@google.com> Signed-off-by:
Neal Cardwell <ncardwell@google.com> Signed-off-by:
Yuchung Cheng <ycheng@google.com> Reviewed-by:
Eric Dumazet <edumazet@google.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Aananth V authored
For passive TCP Fast Open sockets that had SYN/ACK timeout and did not send more data in SYN_RECV, upon receiving the final ACK in 3WHS, the congestion state may awkwardly stay in CA_Loss mode unless the CA state was undone due to TCP timestamp checks. However, if tcp_rcv_synrecv_state_fastopen() decides not to undo, then we should enter CA_Open, because at that point we have received an ACK covering the retransmitted SYNACKs. Currently, the icsk_ca_state is only set to CA_Open after we receive an ACK for a data-packet. This is because tcp_ack does not call tcp_fastretrans_alert (and tcp_process_loss) if !prior_packets Note that tcp_process_loss() calls tcp_try_undo_recovery(), so having tcp_rcv_synrecv_state_fastopen() decide that if we're in CA_Loss we should call tcp_try_undo_recovery() is consistent with that, and low risk. Fixes: dad8cea7 ("tcp: fix TFO SYNACK undo to avoid double-timestamp-undo") Signed-off-by:
Aananth V <aananthv@google.com> Signed-off-by:
Neal Cardwell <ncardwell@google.com> Signed-off-by:
Yuchung Cheng <ycheng@google.com> Reviewed-by:
Eric Dumazet <edumazet@google.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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David S. Miller authored
Oleksij Rempel says: ==================== net: dsa: microchip: add drive strength support changes v5: - rename milliamp to microamp - do not expect negative error code on snprintf - set coma after last struct element - rename found to have_any_prop changes v4: - integrate microchip feedback to the ksz9477_drive_strengths comment. - add Reviewed-by:
Rob Herring <robh@kernel.org> changes v3: - yaml: use enum instead of min/max - do not use snprintf() on overlapping buffer. - unify ksz_drive_strength_to_reg() and ksz_drive_strength_error(). Make it usable for KSZ9477 and KSZ8830 variants. - use ksz_rmw8() in ksz9477_drive_strength_write() ==================== Signed-off-by:
David S. Miller <davem@davemloft.net>
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Oleksij Rempel authored
Add device tree based drive strength configuration support. It is needed to pass EMI validation on our hardware. Configuration values are based on the vendor's reference driver. Tested on KSZ9563R. Signed-off-by:
Oleksij Rempel <o.rempel@pengutronix.de> Reviewed-by:
Andrew Lunn <andrew@lunn.ch> Reviewed-by:
Vladimir Oltean <olteanv@gmail.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Oleksij Rempel authored
Extend device tree bindings to support drive strength configuration for the ksz* switches. Introduced properties: - microchip,hi-drive-strength-microamp: Controls the drive strength for high-speed interfaces like GMII/RGMII and more. - microchip,lo-drive-strength-microamp: Governs the drive strength for low-speed interfaces such as LEDs, PME_N, and others. - microchip,io-drive-strength-microamp: Controls the drive strength for for undocumented Pads on KSZ88xx variants. Signed-off-by:
Oleksij Rempel <o.rempel@pengutronix.de> Reviewed-by:
Rob Herring <robh@kernel.org> Reviewed-by:
Andrew Lunn <andrew@lunn.ch> Reviewed-by:
Vladimir Oltean <olteanv@gmail.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/next-queueDavid S. Miller authored
Tony Nguyen says: ==================== Introduce Intel IDPF driver Pavan Kumar Linga says: This patch series introduces the Intel Infrastructure Data Path Function (IDPF) driver. It is used for both physical and virtual functions. Except for some of the device operations the rest of the functionality is the same for both PF and VF. IDPF uses virtchnl version2 opcodes and structures defined in the virtchnl2 header file which helps the driver to learn the capabilities and register offsets from the device Control Plane (CP) instead of assuming the default values. The format of the series follows the driver init flow to interface open. To start with, probe gets called and kicks off the driver initialization by spawning the 'vc_event_task' work queue which in turn calls the 'hard reset' function. As part of that, the mailbox is initialized which is used to send/receive the virtchnl messages to/from the CP. Once that is done, 'core init' kicks in which requests all the required global resources from the CP and spawns the 'init_task' work queue to create the vports. Based on the capability information received, the driver creates the said number of vports (one or many) where each vport is associated to a netdev. Also, each vport has its own resources such as queues, vectors etc. From there, rest of the netdev_ops and data path are added. IDPF implements both single queue which is traditional queueing model as well as split queue model. In split queue model, it uses separate queue for both completion descriptors and buffers which helps to implement out-of-order completions. It also helps to implement asymmetric queues, for example multiple RX completion queues can be processed by a single RX buffer queue and multiple TX buffer queues can be processed by a single TX completion queue. In single queue model, same queue is used for both descriptor completions as well as buffer completions. It also supports features such as generic checksum offload, generic receive offload (hardware GRO) etc. --- v7: Patch 2: * removed pci_[disable|enable]_pcie_error_reporting as they are dropped from the core Patch 4, 9: * used 'kasprintf' instead of 'snprintf' to avoid providing explicit character string size which also fixes "-Wformat-truncation" warnings Patch 14: * used 'ethtool_sprintf' instead of 'snprintf' to avoid providing explicit character string size which also fixes "-Wformat-truncation" warning * add string format argument to the 'ethtool_sprintf' to avoid warning on "-Wformat-security" v6: https://lore.kernel.org/netdev/20230825235954.894050-1-pavan.kumar.linga@intel.com/ Note: 'Acked-by' was only added to patches 1, 2, 12 and not to the other patches because of the changes in v6 Patch 3, 4, 5, 6, 7, 8, 9, 11, 13, 14, 15: * renamed 'reset_lock' to 'vport_ctrl_lock' to reflect the lock usage * to avoid defensive programming, used 'vport_ctrl_lock' for the user callbacks that access the 'vport' to prevent the hardware reset thread from releasing the 'vport', when the user callback is in progress * added some variables to netdev private structure to avoid vport access if possible from ethtool and ndo callbacks * moved 'mac_filter_list_lock' and MAC related flags to vport_config structure and refactored mac filter flow to handle asynchronous ndo mac filter callbacks * stop the queues before starting the reset flow to avoid TX hangs * removed 'sw_mutex' and 'stop_mutex' as they are not needed anymore * added missing clear bit in 'init_task' error path * renamed labels appropriately Patch 8: * replaced page_pool_put_page with page_pool_put_full_page * for the page pool max_len, used PAGE_SIZE Patch 10, 11, 13: * made use of the 'netif_txq_maybe_stop', '__netif_txq_completed_wake' helper macros Patch 13: * removed IDPF_HR_RESET_IN_PROG flag check in idpf_tx_singleq_start as it is defensive Patch 14: * removed max descriptor check as the core does that * removed unnecessary error messages * removed the stats that are common between the ones reported by ethtool and ip link * replaced snprintf with ethtool_sprintf * added a comment to explain the reason for the max queue check * as the netdev queues are set on alloc, there is no need to set them again on reset unless there is a queue change, so move the 'idpf_set_real_num_queues' to 'idpf_initiate_soft_reset' Patch 15: * reworded the 'configure SRIOV' in the commit message v5: https://lore.kernel.org/netdev/20230816004305.216136-1-anthony.l.nguyen@intel.com/ Most Patches: * wrapped line limit to 80 chars to those which don't effect readability Patch 12: * in skb_add_rx_frag, offset 'headlen' w.r.t page_offset when adding a frag to avoid adding the header again Patch 14: * added NULL check for 'rxq' when dereferencing it in page_pool_get_stats v4: https://lore.kernel.org/netdev/20230808003416.3805142-1-anthony.l.nguyen@intel.com/ Patch 1: * s/virtcnl/virtchnl * removed the kernel doc for the error code definitions that don't exist * reworded the summary part in the virtchnl2 header Patch 3: * don't set local variable to NULL on error * renamed sq_send_command_out label with err_unlock * don't use __GFP_ZERO in dma_alloc_coherent Patch 4: * introduced mailbox workqueue to process mailbox interrupts Patch 3, 4, 5, 6, 7, 8, 9, 11, 15: * removed unnecessary variable 0-init Patch 3, 5, 7, 8, 9, 15: * removed defensive programming checks wherever applicable * removed IDPF_CAP_FIELD_LAST as it can be treated as defensive programming Patch 3, 4, 5, 6, 7: * replaced IDPF_DFLT_MBX_BUF_SIZE with IDPF_CTLQ_MAX_BUF_LEN Patch 2 to 15: * add kernel-doc for idpf.h and idpf_txrx.h enums and structures Patch 4, 5, 15: * adjusted the destroy sequence of the workqueues as per the alloc sequence Patch 4, 5, 9, 15: * scrub unnecessary flags in 'idpf_flags' - IDPF_REMOVE_IN_PROG flag can take care of the cases where IDPF_REL_RES_IN_PROG is used, removed the later one - IDPF_REQ_[TX|RX]_SPLITQ are replaced with struct variables - IDPF_CANCEL_[SERVICE|STATS]_TASK are redundant as the work queue doesn't get rescheduled again after 'cancel_delayed_work_sync' - IDPF_HR_CORE_RESET is removed as there is no set_bit for this flag - IDPF_MB_INTR_TRIGGER is removed as it is not needed anymore with the mailbox workqueue implementation Patch 7 to 15: * replaced the custom buffer recycling code with page pool API * switched the header split buffer allocations from using a bunch of pages to using one large chunk of DMA memory * reordered some of the flows in vport_open to support page pool Patch 8, 12: * don't suppress the alloc errors by using __GFP_NOWARN Patch 9: * removed dyn_ctl_clrpba_m as it is not being used Patch 14: * introduced enum idpf_vport_reset_cause instead of using vport flags * introduced page pool stats v3: https://lore.kernel.org/netdev/20230616231341.2885622-1-anthony.l.nguyen@intel.com/ Patch 5: * instead of void, used 'struct virtchnl2_create_vport' type for vport_params_recvd and vport_params_reqd and removed the typecasting * used u16/u32 as needed instead of int for variables which cannot be negative and updated in all the places whereever applicable Patch 6: * changed the commit message to "add ptypes and MAC filter support" * used the sender Signed-off-by as the last tag on all the patches * removed unnecessary variables 0-init * instead of fixing the code in this commit, fixed it in the commit where the change was introduced first * moved get_type_info struct on to the stack instead of memory alloc * moved mutex_lock and ptype_info memory alloc outside while loop and adjusted the return flow * used 'break' instead of 'continue' in ptype id switch case v2: https://lore.kernel.org/netdev/20230614171428.1504179-1-anthony.l.nguyen@intel.com/ Patch 2: * added "Intel(R)" to the DRV_SUMMARY and Makefile. Patch 4, 5, 6, 15: * replaced IDPF_VC_MSG_PENDING flag with mutex 'vc_buf_lock' for the adapter related virtchnl opcodes. * get the mutex lock in the virtchnl send thread itself instead of in receive thread. Patch 5, 6, 7, 8, 9, 11, 14, 15: * replaced IDPF_VPORT_VC_MSG_PENDING flag with mutex 'vc_buf_lock' for the vport related virtchnl opcodes. * get the mutex lock in the virtchnl send thread itself instead of in receive thread. Patch 6: * converted get_ptype_info logic from 1:N to 1:1 message exchange for better handling of mutex lock. Patch 15: * introduced 'stats_lock' spinlock to avoid concurrent stats update. v1: https://lore.kernel.org/netdev/20230530234501.2680230-1-anthony.l.nguyen@intel.com/ ==================== Signed-off-by:
David S. Miller <davem@davemloft.net>
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David S. Miller authored
Keguang Zhang says: ==================== Move Loongson1 MAC arch-code to the driver dir In order to convert Loongson1 MAC platform devices to the devicetree nodes, Loongson1 MAC arch-code should be moved to the driver dir. Add dt-binding document and update MAINTAINERS file accordingly. In other words, this patchset is a preparation for converting Loongson1 platform devices to devicetree. Changelog V4 -> V5: Replace stmmac_probe_config_dt() with devm_stmmac_probe_config_dt() Replace stmmac_pltfr_probe() with devm_stmmac_pltfr_probe() Squash patch 4 into patch 2 and 3 V3 -> V4: Add Acked-by tag from Krzysztof Kozlowski Add "|" to description part Amend "phy-mode" property Drop ls1x_dwmac_syscon definition and its instances Drop three redundant fields from the ls1x_dwmac structure Drop the ls1x_dwmac_init() method. Update the dt-binding document entry of Loongson1 Ethernet Some minor improvements V2 -> V3: Split the DT-schema file into loongson,ls1b-gmac.yaml and loongson,ls1c-emac.yaml (suggested by Serge Semin) Change the compatibles to loongson,ls1b-gmac and loongson,ls1c-emac Rename loongson,dwmac-syscon to loongson,ls1-syscon Amend the title Add description Add Reviewed-by tag from Krzysztof Kozlowski Change compatibles back to loongson,ls1b-syscon and loongson,ls1c-syscon Determine the device ID by physical base address(suggested by Serge Semin) Use regmap instead of regmap fields Use syscon_regmap_lookup_by_phandle() Some minor fixes Update the entries of MAINTAINERS V1 -> V2: Leave the Ethernet platform data for now Make the syscon compatibles more specific Fix "clock-names" and "interrupt-names" property Rename the syscon property to "loongson,dwmac-syscon" Drop "phy-handle" and "phy-mode" requirement Revert adding loongson,ls1b-dwmac/loongson,ls1c-dwmac to snps,dwmac.yaml Fix the build errors due to CONFIG_OF being unset Change struct reg_field definitions to const Rename the syscon property to "loongson,dwmac-syscon" Add MII PHY mode for LS1C Improve the commit message ==================== Signed-off-by:
David S. Miller <davem@davemloft.net>
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Keguang Zhang authored
This glue driver is created based on the arch-code implemented earlier with the platform-specific settings. Use syscon for SYSCON register access. And modify MAINTAINERS to add a new F: entry for this driver. Partially based on the previous work by Serge Semin. Signed-off-by:
Keguang Zhang <keguang.zhang@gmail.com> Reviewed-by:
Serge Semin <fancer.lancer@gmail.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Keguang Zhang authored
Add devicetree binding document for Loongson-1 Ethernet controller. And modify MAINTAINERS to add a new F: entry for Loongson1 dt-binding documents. Signed-off-by:
Keguang Zhang <keguang.zhang@gmail.com> Reviewed-by:
Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Reviewed-by:
Serge Semin <fancer.lancer@gmail.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Keguang Zhang authored
Add Loongson LS1B and LS1C compatibles for system controller. Signed-off-by:
Keguang Zhang <keguang.zhang@gmail.com> Acked-by:
Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Reviewed-by:
Serge Semin <fancer.lancer@gmail.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Alex Austin authored
Follow the style used in the core kernel (e.g. include/linux/etherdevice.h and include/linux/in6.h) for the PTP IPv6 and Ethernet addresses. No functional changes. Signed-off-by:
Alex Austin <alex.austin@amd.com> Reviewed-by:
Edward Cree <ecree.xilinx@gmail.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Lorenzo Bianconi authored
Check if wlan.offload_enable and wlan.offload_disable callbacks are set in mtk_wed_flow_add/mtk_wed_flow_remove since mt7996 will not rely on them. Signed-off-by:
Lorenzo Bianconi <lorenzo@kernel.org> Reviewed-by:
Simon Horman <horms@kernel.org> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Eric Dumazet authored
It can be time consuming to track driver bugs, that might be detected too late from this confusing warning in skb_try_coalesce() WARN_ON_ONCE(delta < len); Add sanity check in skb_add_rx_frag() and skb_coalesce_rx_frag() to better track bug origin for CONFIG_DEBUG_NET=y builds. Signed-off-by:
Eric Dumazet <edumazet@google.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Eric Dumazet authored
When adding sk->sk_prot->release_cb() call from __sk_flush_backlog() Paolo suggested using indirect call helpers to take care of CONFIG_RETPOLINE=y case. It turns out Google had such mitigation for years in release_sock(), it is time to make this public :) Suggested-by:
Paolo Abeni <pabeni@redhat.com> Signed-off-by:
Eric Dumazet <edumazet@google.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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- Sep 15, 2023
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Dan Carpenter authored
Indent this if statement one tab. Signed-off-by:
Dan Carpenter <dan.carpenter@linaro.org> Signed-off-by:
David S. Miller <davem@davemloft.net>
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David S. Miller authored
==================== net: Add Half Duplex support for ICSSG Driver This series adds support for half duplex operation for ICSSG driver. In order to support half-duplex operation at 10M and 100M link speeds, the PHY collision detection signal (COL) should be routed to ICSSG GPIO pin (PRGx_PRU0/1_GPI10) so that firmware can detect collision signal and apply the CSMA/CD algorithm applicable for half duplex operation. A DT property, "ti,half-duplex-capable" is introduced for this purpose in the first patch of the series. If board has PHY COL pin conencted to PRGx_PRU1_GPIO10, this DT property can be added to eth node of ICSSG, MII port to support half duplex operation at that port. Second patch of the series configures driver to support half-duplex operation if the DT property "ti,half-duplex-capable" is enabled. This series addresses comments on [v2]. This series is based on the latest net-next/main. This series has no dependency. Changes from v1 to v2: *) Changed the description of "ti,half-duplex-capable" property as asked by Rob and Andrew to avoid confusion between capable and enable. Changes from v1 to v2: *) Dropped the RFC tag. *) Added RB tags of Andrew and Roger. [v1] https://lore.kernel.org/all/20230830113134.1226970-1-danishanwar@ti.com/ [v2] https://lore.kernel.org/all/20230911060200.2164771-1-danishanwar@ti.com/ ==================== Signed-off-by:
David S. Miller <davem@davemloft.net>
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MD Danish Anwar authored
This patch adds support for half duplex operation at 10M and 100M link speeds for AM654x/AM64x devices. - Driver configures rand_seed, a random number, in DMEM HD_RAND_SEED_OFFSET field, which will be used by firmware for Back off time calculation. - Driver informs FW about half duplex link operation in DMEM PORT_LINK_SPEED_OFFSET field by setting bit 7 for 10/100M HD. Hence, the half duplex operation depends on board design the "ti,half-duplex-capable" property has to be enabled for ICSS-G ports if HW is capable to perform half duplex. Reviewed-by:
Andrew Lunn <andrew@lunn.ch> Reviewed-by:
Roger Quadros <rogerq@kernel.org> Signed-off-by:
MD Danish Anwar <danishanwar@ti.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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MD Danish Anwar authored
In order to support half-duplex operation at 10M and 100M link speeds, the PHY collision detection signal (COL) should be routed to ICSSG GPIO pin (PRGx_PRU0/1_GPI10) so that firmware can detect collision signal and apply the CSMA/CD algorithm applicable for half duplex operation. A DT property, "ti,half-duplex-capable" is introduced for this purpose. If board has PHY COL pin conencted to PRGx_PRU1_GPIO10, this DT property can be added to eth node of ICSSG, MII port to support half duplex operation at that port. Reviewed-by:
Roger Quadros <rogerq@kernel.org> Signed-off-by:
MD Danish Anwar <danishanwar@ti.com> Reviewed-by:
Andrew Lunn <andrew@lunn.ch> Acked-by:
Conor Dooley <conor.dooley@microchip.com> Reviewed-by:
Rob Herring <robh@kernel.org> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Linus Walleij authored
We auto-negotiate most ports in the RTL8366RB driver, but the CPU port is hard-coded to 1Gbit, full duplex, tx and rx pause. This isn't very nice. People may configure speed and duplex differently in the device tree. Actually respect the arguments passed to the function for the CPU port, which get passed properly after Russell's patch "net: dsa: realtek: add phylink_get_caps implementation" After this the link is still set up properly. Signed-off-by:
Linus Walleij <linus.walleij@linaro.org> Reviewed-by:
Alvin Šipraga <alsi@bang-olufsen.dk> Reviewed-by:
Vladimir Oltean <olteanv@gmail.com> Reviewed-by:
Florian Fainelli <florian.fainelli@broadcom.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Hariprasad Kelam authored
PTP block supports generating PPS output signal on GPIO pin. This patch adds the support in the PTP PHC driver using standard periodic output interface. User can enable/disable/configure PPS by writing to the below sysfs entry echo perout.index start.sec start.nsec period.sec period.nsec > /sys/class/ptp/ptp0/period Example to generate 50% duty cycle PPS signal: echo 0 0 0 0 500000000 > /sys/class/ptp/ptp0/period Signed-off-by:
Hariprasad Kelam <hkelam@marvell.com> Signed-off-by:
Sunil Kovvuri Goutham <sgoutham@marvell.com> Signed-off-by:
Sai Krishna <saikrishnag@marvell.com> Acked-by:
Richard Cochran <richardcochran@gmail.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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David S. Miller authored
Eric Dumazet says: ==================== ipv6: round of data-races fixes This series is inspired by one related syzbot report. Many inet6_sk(sk) fields reads or writes are racy. Move 1-bit fields to inet->inet_flags to provide atomic safety. inet6_{test|set|clear|assign}_bit() helpers could be changed later if we need to make room in inet_flags. Also add missing READ_ONCE()/WRITE_ONCE() when lockless readers need access to specific fields. np->srcprefs will be handled separately to avoid merge conflicts because a prior patch was posted for net tree. ==================== Signed-off-by:
David S. Miller <davem@davemloft.net>
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Eric Dumazet authored
np->sndflow reads are racy. Use one bit ftom atomic inet->inet_flags instead, IPV6_FLOWINFO_SEND setsockopt() can be lockless. Signed-off-by:
Eric Dumazet <edumazet@google.com> Reviewed-by:
David Ahern <dsahern@kernel.org> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Eric Dumazet authored
Most np->pmtudisc reads are racy. Move this 3bit field on a full byte, add annotations and make IPV6_MTU_DISCOVER setsockopt() lockless. Signed-off-by:
Eric Dumazet <edumazet@google.com> Reviewed-by:
David Ahern <dsahern@kernel.org> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Eric Dumazet authored
Reads from np->rtalert_isolate are racy. Move this flag to inet->inet_flags to fix data-races. Signed-off-by:
Eric Dumazet <edumazet@google.com> Reviewed-by:
David Ahern <dsahern@kernel.org> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Eric Dumazet authored
Move np->repflow to inet->inet_flags to fix data-races. Signed-off-by:
Eric Dumazet <edumazet@google.com> Reviewed-by:
David Ahern <dsahern@kernel.org> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Eric Dumazet authored
np->recverr is moved to inet->inet_flags to fix data-races. Signed-off-by:
Eric Dumazet <edumazet@google.com> Reviewed-by:
David Ahern <dsahern@kernel.org> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Eric Dumazet authored
Move np->dontfrag flag to inet->inet_flags to fix data-races. Signed-off-by:
Eric Dumazet <edumazet@google.com> Reviewed-by:
David Ahern <dsahern@kernel.org> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Eric Dumazet authored
Move np->autoflowlabel and np->autoflowlabel_set in inet->inet_flags, to fix data-races. Signed-off-by:
Eric Dumazet <edumazet@google.com> Reviewed-by:
David Ahern <dsahern@kernel.org> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Eric Dumazet authored
Move np->mc_all to an atomic flags to fix data-races. Signed-off-by:
Eric Dumazet <edumazet@google.com> Reviewed-by:
David Ahern <dsahern@kernel.org> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Eric Dumazet authored
Move np->recverr_rfc4884 to an atomic flag to fix data-races. Signed-off-by:
Eric Dumazet <edumazet@google.com> Reviewed-by:
David Ahern <dsahern@kernel.org> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Eric Dumazet authored
Add one missing READ_ONCE() annotation in do_ipv6_getsockopt() and make IPV6_MINHOPCOUNT setsockopt() lockless. Signed-off-by:
Eric Dumazet <edumazet@google.com> Reviewed-by:
David Ahern <dsahern@kernel.org> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Eric Dumazet authored
np->frag_size can be read/written without holding socket lock. Add missing annotations and make IPV6_MTU setsockopt() lockless. Signed-off-by:
Eric Dumazet <edumazet@google.com> Reviewed-by:
David Ahern <dsahern@kernel.org> Signed-off-by:
David S. Miller <davem@davemloft.net>
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