- 03 Aug, 2023 21 commits
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Maxim Georgiev authored
Current hardware timestamping API for NICs requires implementing .ndo_eth_ioctl() for SIOCGHWTSTAMP and SIOCSHWTSTAMP. That API has some boilerplate such as request parameter translation between user and kernel address spaces, handling possible translation failures correctly, etc. Since it is the same all across the board, it would be desirable to handle it through generic code. Here we introduce .ndo_hwtstamp_get() and .ndo_hwtstamp_set(), which implement that boilerplate and allow drivers to just act upon requests. Suggested-by:
Jakub Kicinski <kuba@kernel.org> Signed-off-by:
Maxim Georgiev <glipus@gmail.com> Signed-off-by:
Vladimir Oltean <vladimir.oltean@nxp.com> Reviewed-by:
Jacob Keller <jacob.e.keller@intel.com> Tested-by:
Horatiu Vultur <horatiu.vultur@microchip.com> Link: https://lore.kernel.org/r/20230801142824.1772134-2-vladimir.oltean@nxp.comSigned-off-by:
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Jakub Kicinski authored
Eric Dumazet says: ==================== net: extend alloc_skb_with_frags() max size alloc_skb_with_frags(), while being able to use high order allocations, limits the payload size to PAGE_SIZE * MAX_SKB_FRAGS Reviewing Tahsin Erdogan patch [1], it was clear to me we need to remove this limitation. [1] https://lore.kernel.org/netdev/20230731230736.109216-1-trdgn@amazon.com/ v2: Addressed Willem feedback on 1st patch. ==================== Link: https://lore.kernel.org/r/20230801205254.400094-1-edumazet@google.comSigned-off-by:
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Eric Dumazet authored
tap_alloc_skb() is currently calling sock_alloc_send_pskb() forcing order-0 page allocations. Switch to PAGE_ALLOC_COSTLY_ORDER, to increase max size by 8x. Also add logic to increase the linear part if needed. Signed-off-by:
Eric Dumazet <edumazet@google.com> Cc: Tahsin Erdogan <trdgn@amazon.com> Reviewed-by:
Willem de Bruijn <willemb@google.com> Link: https://lore.kernel.org/r/20230801205254.400094-5-edumazet@google.comSigned-off-by:
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Eric Dumazet authored
packet_alloc_skb() is currently calling sock_alloc_send_pskb() forcing order-0 page allocations. Switch to PAGE_ALLOC_COSTLY_ORDER, to increase max size by 8x. Also add logic to increase the linear part if needed. Signed-off-by:
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Eric Dumazet authored
tun_alloc_skb() is currently calling sock_alloc_send_pskb() forcing order-0 page allocations. Switch to PAGE_ALLOC_COSTLY_ORDER, to increase max allocation size by 8x. Also add logic to increase the linear part if needed. Signed-off-by:
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Eric Dumazet authored
Refactor alloc_skb_with_frags() to allow bigger packets allocations. Instead of assuming that only order-0 allocations will be attempted, use the caller supplied max order. v2: try harder to use high-order pages, per Willem feedback. Link: https://lore.kernel.org/netdev/CANn89iJQfmc_KeUr3TeXvsLQwo3ZymyoCr7Y6AnHrkWSuz0yAg@mail.gmail.com/Signed-off-by:
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Yue Haibing authored
These declarations are never implemented since beginning of git history. Signed-off-by:
Yue Haibing <yuehaibing@huawei.com> Reviewed-by:
Simon Horman <horms@kernel.org> Acked-by:
Xin Long <lucien.xin@gmail.com> Link: https://lore.kernel.org/r/20230731141030.32772-1-yuehaibing@huawei.comSigned-off-by:
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Jakub Kicinski authored
Leon Romanovsky says: ==================== mlx5 IPsec packet offload support in eswitch mode This series from Jianbo adds mlx5 IPsec packet offload support in eswitch offloaded mode. It works exactly like "regular" IPsec, nothing special, except now users can switch to switchdev before adding IPsec rules. devlink dev eswitch set pci/0000:06:00.0 mode switchdev Same configurations as here: https://lore.kernel.org/netdev/cover.1670005543.git.leonro@nvidia.com/ Packet offload mode: ip xfrm state offload packet dev <if-name> dir <in|out> ip xfrm policy .... offload packet dev <if-name> Crypto offload mode: ip xfrm state offload crypto dev <if-name> dir <in|out> or (backward compatibility) ip xfrm state offload dev <if-name> dir <in|out> v0: https://lore.kernel.org/all/cover.1689064922.git.leonro@nvidia.com ==================== Link: https://lore.kernel.org/r/cover.1690802064.git.leon@kernel.orgSigned-off-by:
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Jianbo Liu authored
For IPsec packet offload mode, the order of TC offload and IPsec offload on the same netdevice is not aligned with the order in the non-offload software. For example, for RX, the software performs TC first and then IPsec transformation, but the implementation for offload does that in the opposite way. To resolve the difference for now, either IPsec offload or TC offload, not both, is allowed for a specific interface. Signed-off-by:
Jianbo Liu <jianbol@nvidia.com> Signed-off-by:
Leon Romanovsky <leonro@nvidia.com> Link: https://lore.kernel.org/r/8e2e5e3b0984d785066e8663aaf97b3ba1bb873f.1690802064.git.leon@kernel.orgSigned-off-by:
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Jianbo Liu authored
As IPsec offload is supported in switchdev mode, HW stats can be can be obtained from uplink rep. Signed-off-by:
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Jianbo Liu authored
After IPsec policy/state TX rules are added, any TC flow rule, which forwards packets to uplink, is modified to forward to IPsec TX tables. As these tables are destroyed dynamically, whenever there is no reference to them, the destinations of this kind of rules must be restored to uplink. There is a special case for packet encapsulation, as the packet_reformat_id in the extended destination is used to reformat packets, but only for the VPORT destination. To forward packet to IPsec table and do encapsulation in one FTE, move the packet_reformat_id to flow context, instead of using the extended destination. As a limitation, multiple encapsulations with table forwarding, and one together with other VPORT destinations, are not allowed, so add a check when offloading TC rules. TC rules are not allowed before IPsec TX rule is added, so only need to restore TC rules after flush IPSec TX rules. As they are saved in the vport_rep rhashtables, we walk all the rules in the rhashtables, and find TC rules with destinations pointing to IPsec tables, and modify them one by one. To avoid concurrent issue, this handling is done under the protection of eswitch mode_lock. Signed-off-by:
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Jianbo Liu authored
The eswitch mode is not allowed to change if there are any IPsec rules. Besides, by using mlx5_esw_try_lock() to get eswitch mode lock, IPsec rules are not allowed to be offloaded if there are any TC rules. Signed-off-by:
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Jianbo Liu authored
The rule destination must be compared with the old_dest passed in. Signed-off-by:
Mark Bloch <mbloch@nvidia.com> Signed-off-by:
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Jianbo Liu authored
The IPsec encryption is done at the last, so add new prio for IPsec offload in FDB, and put it just lower than the slow path prio and higher than the per-vport prio. Three levels are added for TX. The first one is for ip xfrm policy. The sa table is created in the second level for ip xfrm state. The status table is created at the last to count the number of packets encrypted. The rules, which forward packets to uplink, are changed to forward them to IPsec TX tables first. These rules are restored after those tables are destroyed, which is done immediately when there is no reference to them, just as what does in legacy mode. The support for slow path is added here, by refreshing uplink's channels. But, the handling for TC fast path, which is more complicated, will be added later. Besides, reg c4 is used instead to match reqid. Signed-off-by:
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Jianbo Liu authored
Add attribute for IPsec TX creation, pass all needed parameters in it, so tx_create() can be used by eswitch. Signed-off-by:
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Jianbo Liu authored
Reuse tun opts bits in reg c1, to pass IPsec obj id to datapath. As this is only for RX SA and there are only 11 bits, xarray is used to map IPsec obj id to an index, which is between 1 and 0x7ff, and replace obj id to write to reg c1. Signed-off-by:
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Jianbo Liu authored
As decryption must be done first, add new prio for IPsec offload in FDB, and put it just lower than BYPASS prio and higher than TC prio. Three levels are added for RX. The first one is for ip xfrm policy. SA table is created in the second level for ip xfrm state. The status table is created in the last to check the decryption result. If success, packets continue with the next process, or dropped otherwise. For now, the set of reg c1 is removed for swtichdev mode, and the datapath process will be added in the next patch. Signed-off-by:
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Jianbo Liu authored
Add attribute for IPsec RX creation, so rx_create() can be used by eswitch in later patch. And move the code for TTC dest connect/disconnect, which are needed only in NIC mode, to individual functions. Signed-off-by:
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Jianbo Liu authored
As the uplink representor is created only in switchdev mode, add a local variable for IPsec to indicate the device is in this mode. In this mode, IPsec ROCE is disabled, and crypto offload is kept as it is. However, as the tables for packet offload are created in FDB, ipsec->rx_esw and ipsec->tx_esw are added. Signed-off-by:
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Jianbo Liu authored
Refactor the function to pass in reg B value only. Signed-off-by:
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Jianbo Liu authored
Add function to get namespace in different directions. It will be extended for switchdev mode in later patch, but no functionality change for now. Signed-off-by:
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- 02 Aug, 2023 19 commits
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Brett Creeley authored
The documentation above pds_client_register states that it returns 0 on success and negative on error. However, it actually returns a positive client ID on success and negative on error. Fix the documentation to state exactly that. Signed-off-by:
Brett Creeley <brett.creeley@amd.com> Signed-off-by:
Shannon Nelson <shannon.nelson@amd.com> Reviewed-by:
Jesse Brandeburg <jesse.brandeburg@intel.com> Link: https://lore.kernel.org/r/20230801165833.1622-1-brett.creeley@amd.comSigned-off-by:
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Yue Haibing authored
Commit 29ab586c ("net: switchdev: Remove bridge bypass support from switchdev") leave this unused. Signed-off-by:
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Yue Haibing authored
Since commit b1edeb10 ("netlabel: Replace protocol/NetLabel linking with refrerence counts") this declaration is unused and can be removed. Signed-off-by:
Paul Moore <paul@paul-moore.com> Link: https://lore.kernel.org/r/20230801143453.24452-1-yuehaibing@huawei.comSigned-off-by:
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Yue Haibing authored
Commit 642c2c95 ("ila: xlat changes") removed ila_xlat_outgoing() and ila_xlat_incoming() functions, then this file became unnecessary. Signed-off-by:
Larysa Zaremba <larysa.zaremba@intel.com> Reviewed-by:
David Ahern <dsahern@kernel.org> Link: https://lore.kernel.org/r/20230801143129.40652-1-yuehaibing@huawei.comSigned-off-by:
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Yue Haibing authored
commit 8a59f9d1 ("sock: Introduce sk->sk_prot->psock_update_sk_prot()") left behind this. Signed-off-by:
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Ruan Jinjie authored
There is no possible for platform_get_irq() to return 0 and the return value of platform_get_irq() is more sensible to show the error reason. And there is no need to call the dev_warn() function directly to print a custom message when handling an error from platform_get_irq() function as it is going to display an appropriate error message in case of a failure. Signed-off-by:
Ruan Jinjie <ruanjinjie@huawei.com> Reviewed-by:
Alex Elder <elder@linaro.org> Link: https://lore.kernel.org/r/20230801133121.416319-1-ruanjinjie@huawei.comSigned-off-by:
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Kurt Kanzenbach authored
Replace bogus comment about matching the latched timestamp to one of the received frames. That comment is probably copied from mv88e6xxx and true for these switches. However, the hellcreek switch is configured to insert the timestamp directly into the PTP packets. While here, remove the other comments regarding the list splicing and locking as well, because it doesn't add any value. Signed-off-by:
Kurt Kanzenbach <kurt@linutronix.de> Reviewed-by:
Vladimir Oltean <olteanv@gmail.com> Link: https://lore.kernel.org/r/20230801131647.84697-1-kurt@linutronix.deSigned-off-by:
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Ruan Jinjie authored
There are a little ternary operators, the true or false judgement of which is unnecessary in C language semantics. Signed-off-by:
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Ruan Jinjie authored
There are a little ternary operators, the true or false judgement of which is unnecessary in C language semantics. So remove it to clean Code. Signed-off-by:
Sunil Goutham <sgoutham@marvell.com> Link: https://lore.kernel.org/r/20230801112638.317149-1-ruanjinjie@huawei.comSigned-off-by:
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Ruan Jinjie authored
net: hisilicon: fix the return value handle and remove redundant netdev_err() for platform_get_irq() There is no possible for platform_get_irq() to return 0 and the return value of platform_get_irq() is more sensible to show the error reason. And there is no need to call the netdev_err() function directly to print a custom message when handling an error from platform_get_irq() function as it is going to display an appropriate error message in case of a failure. Signed-off-by:
Dan Carpenter <dan.carpenter@linaro.org> Link: https://lore.kernel.org/r/20230731073858.3633193-1-ruanjinjie@huawei.comSigned-off-by:
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Yang Li authored
./drivers/net/ethernet/freescale/fman/mac.c: linux/of_platform.h is included more than once. Reported-by:
Abaci Robot <abaci@linux.alibaba.com> Closes: https://bugzilla.openanolis.cn/show_bug.cgi?id=6039Signed-off-by:
Yang Li <yang.lee@linux.alibaba.com> Reviewed-by:
David S. Miller <davem@davemloft.net>
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Willem de Bruijn authored
tcp_mmap tests TCP_ZEROCOPY_RECEIVE. If 0% of data is received using mmap, this may be due to mss. Report rcv_mss to identify this cause. Output of a run failed due to too small mss: received 32768 MB (0 % mmap'ed) in 8.40458 s, 32.7057 Gbit cpu usage user:0.027922 sys:8.21126, 251.44 usec per MB, 3252 c-switches, rcv_mss 1428 Output on a successful run: received 32768 MB (99.9507 % mmap'ed) in 4.69023 s, 58.6064 Gbit cpu usage user:0.029172 sys:2.56105, 79.0473 usec per MB, 57591 c-switches, rcv_mss 4096 Suggested-by: -
David S. Miller authored
MD Danish Anwar says: ==================== Introduce ICSSG based ethernet Driver The Programmable Real-time Unit and Industrial Communication Subsystem Gigabit (PRU_ICSSG) is a low-latency microcontroller subsystem in the TI SoCs. This subsystem is provided for the use cases like the implementation of custom peripheral interfaces, offloading of tasks from the other processor cores of the SoC, etc. The subsystem includes many accelerators for data processing like multiplier and multiplier-accumulator. It also has peripherals like UART, MII/RGMII, MDIO, etc. Every ICSSG core includes two 32-bit load/store RISC CPU cores called PRUs. The above features allow it to be used for implementing custom firmware based peripherals like ethernet. This series adds the YAML documentation and the driver with basic EMAC support for TI AM654 Silicon Rev 2 SoC with the PRU_ICSSG Sub-system. running dual-EMAC firmware. This currently supports basic EMAC with 1Gbps and 100Mbps link. 10M and half-duplex modes are not yet supported because they require the support of an IEP, which will be added later. Advanced features like switch-dev and timestamping will be added later. This is the v13 of the patch series [v1]. This version of the patchset addresses comments made on v12. There series doesn't have any dependency. Changes from v12 to v13 : *) Rebased the series on latest net-next. *) Addressed Jakub's comments on ndo_xmit API. Now we will only stop queues based on occupancy not on dma errors. *) Removed limiting the number of serviced packets to budget for Tx NAPI. Now Tx NAPI will keep servicing packets. *) Removed netif_running() check when packet arrives. *) Introduced prototypes of APIs in the same patch where these APIs are added. Dropped __maybe_unused tags as compiler only cares about prototypes existing, not whether actual callers are in place. Now prototypes of these APIs are present in the same patch where they are introduced but thes APIs are called later (in patch 6). Changes from v11 to v12 : *) Rebased the series on latest net-next. *) Addressed Jakub's comments on ndo_xmit API. *) Added hooks to .get_rmon_stats for the driver. Now tx / rx bucket size and frame counts per bucket will be fetched by ethtool_rmon_stats instead of ethtool -S. *) Added __maybe_unused tags to unused config and classifier APIs in patch 2,3 and 4. These tags are later removed in patch 6. Changes from v10 to v11 : *) Rebased the series on latest net-next. *) Split the ICSSG driver introduction patch into 9 different patches as asked by Jakub. *) Introduced new patch(patch 8/10) to dump Standard network interface staticstics via ndo_get_stats64. Now certain stats that are reported by ICSSG hardware and are also part of struct rtnl_link_stats64, will be reported by ndo_get_stats64. While other stats that are not part of the struct rtnl_link_stats64 will be reported by ethtool -S. These stats are not duplicated. Changes from v9 to v10 : *) Rebased the series on latest net-next. *) Moved 'ndev prueth->emac[mac] == emac' assignment to the end of function prueth_netdev_init(). *) In unsupported phy_mode switch case instead of returning -EINVAL, store the error code in ret and 'goto free' Changes from v8 to v9 : *) Rebased the series on latest net-next. *) Fixed smatch and sparse warnings as pointed by Simon. *) Fixed leaky ndev in prueth_netdev_init() as asked by Simon. Changes from v7 to v8 : *) Rebased the series on 6.5-rc1. *) Fixed few formattings. Changes from v6 to v7 : *) Added RB tag of Rob in patch 1 of this series. *) Addressed Simon's comment on patch 2 of the series. *) Rebased patchset on next-20230428 linux-next. Changes from v5 to v6 : *) Added RB tag of Andrew Lunn in patch 2 of this series. *) Addressed Rob's comment on patch 1 of the series. *) Rebased patchset on next-20230421 linux-next. Changes from v4 to v5 : *) Re-arranged properties section in ti,icssg-prueth.yaml file. *) Added requirement for minimum one ethernet port. *) Fixed some minor formatting errors as asked by Krzysztof. *) Dropped SGMII mode from enum mii_mode as SGMII mode is not currently supported by the driver. *) Added switch-case block to handle different phy modes by ICSSG driver. Changes from v3 to v4 : *) Addressed Krzysztof's comments and fixed dt_binding_check errors in patch 1/2. *) Added interrupt-extended property in ethernet-ports properties section. *) Fixed comments in file icssg_switch_map.h according to the Linux coding style in patch 2/2. Added Documentation of structures in patch 2/2. Changes from v2 to v3 : *) Addressed Rob and Krzysztof's comments on patch 1 of this series. Fixed indentation. Removed description and pinctrl section from ti,icssg-prueth.yaml file. *) Addressed Krzysztof, Paolo, Randy, Andrew and Christophe's comments on patch 2 of this seires. *) Fixed blanklines in Kconfig and Makefile. Changed structures to const as suggested by Krzysztof. *) Fixed while loop logic in emac_tx_complete_packets() API as suggested by Paolo. Previously in the loop's last iteration 'budget' was 0 and napi_consume_skb would wrongly assume the caller is not in NAPI context Now, budget won't be zero in last iteration of loop. *) Removed inline functions addr_to_da1() and addr_to_da0() as asked by Andrew. *) Added dev_err_probe() instead of dev_err() as suggested by Christophe. *) In ti,icssg-prueth.yaml file, in the patternProperties section of ethernet-ports, kept the port name as "port" instead of "ethernet-port" as all other drivers were using "port". Will change it if is compulsory to use "ethernet-port". ==================== Signed-off-by: -
MD Danish Anwar authored
Add suspend / resume APIs to support power management in ICSSG ethernet driver. Reviewed-by:
Andrew Lunn <andrew@lunn.ch> Signed-off-by:
MD Danish Anwar <danishanwar@ti.com> Signed-off-by:
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MD Danish Anwar authored
Add icssg_ethtool.c file. This file will be used for dumping statistics via ethtool for ICSSG ethernet driver. Reviewed-by:
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MD Danish Anwar authored
Implement .ndo_get_stats64 to dump standard network interface statistics for ICSSG ethernet driver. Signed-off-by:
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MD Danish Anwar authored
Add icssg_stats.c to help dump, icssg related driver statistics. ICSSG has hardware registers for providing statistics like total rx bytes, total tx bytes, etc. These registers are of 32 bits and hence in case of 1G link, they overflows in around 32 seconds. The behaviour of these registers is such that they don't roll back to 0 after overflow but rather stay at UINT_MAX. These registers support a feature where the value written to them is subtracted from the register. This feature can be utilized to fix the overflowing of stats. This solution uses a Workqueues based solution where a function gets called before the registers overflow (every 25 seconds in 1G link, 25000 seconds in 100M link), this function saves the register values in local variables and writes the last read value to the register. So any update during the read will be taken care of. Signed-off-by:
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Roger Quadros authored
This is the Ethernet driver for TI AM654 Silicon rev. 2 with the ICSSG PRU Sub-system running dual-EMAC firmware. The Programmable Real-time Unit and Industrial Communication Subsystem Gigabit (PRU_ICSSG) is a low-latency microcontroller subsystem in the TI SoCs. This subsystem is provided for the use cases like implementation of custom peripheral interfaces, offloading of tasks from the other processor cores of the SoC, etc. Every ICSSG core has two Programmable Real-Time Unit(PRUs), two auxiliary Real-Time Transfer Unit (RT_PRUs), and two Transmit Real-Time Transfer Units (TX_PRUs). Each one of these runs its own firmware. Every ICSSG core has two MII ports connect to these PRUs and also a MDIO port. The cores can run different firmwares to support different protocols and features like switch-dev, timestamping, etc. It uses System DMA to transfer and receive packets and shared memory register emulation between the firmware and driver for control and configuration. This patch adds support for basic EMAC functionality with 1Gbps and 100Mbps link speed. 10M and half duplex mode are not supported currently as they require IEP, the support for which will be added later. Support for switch-dev, timestamp, etc. will be added later by subsequent patch series. Signed-off-by:
Roger Quadros <rogerq@ti.com> Signed-off-by:
Vignesh Raghavendra <vigneshr@ti.com> Signed-off-by:
Grygorii Strashko <grygorii.strashko@ti.com> Reviewed-by:
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MD Danish Anwar authored
Add a YAML binding document for the ICSSG Programmable real time unit based Ethernet hardware. The ICSSG driver uses the PRU and PRUSS consumer APIs to interface the PRUs and load/run the firmware for supporting ethernet functionality. Reviewed-by:
Rob Herring <robh@kernel.org> Signed-off-by:
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