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path: root/drivers/net/ethernet/intel/i40e
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2024-12-02module: Convert symbol namespace to string literalPeter Zijlstra
Clean up the existing export namespace code along the same lines of commit 33def8498fdd ("treewide: Convert macro and uses of __section(foo) to __section("foo")") and for the same reason, it is not desired for the namespace argument to be a macro expansion itself. Scripted using git grep -l -e MODULE_IMPORT_NS -e EXPORT_SYMBOL_NS | while read file; do awk -i inplace ' /^#define EXPORT_SYMBOL_NS/ { gsub(/__stringify\(ns\)/, "ns"); print; next; } /^#define MODULE_IMPORT_NS/ { gsub(/__stringify\(ns\)/, "ns"); print; next; } /MODULE_IMPORT_NS/ { $0 = gensub(/MODULE_IMPORT_NS\(([^)]*)\)/, "MODULE_IMPORT_NS(\"\\1\")", "g"); } /EXPORT_SYMBOL_NS/ { if ($0 ~ /(EXPORT_SYMBOL_NS[^(]*)\(([^,]+),/) { if ($0 !~ /(EXPORT_SYMBOL_NS[^(]*)\(([^,]+), ([^)]+)\)/ && $0 !~ /(EXPORT_SYMBOL_NS[^(]*)\(\)/ && $0 !~ /^my/) { getline line; gsub(/[[:space:]]*\\$/, ""); gsub(/[[:space:]]/, "", line); $0 = $0 " " line; } $0 = gensub(/(EXPORT_SYMBOL_NS[^(]*)\(([^,]+), ([^)]+)\)/, "\\1(\\2, \"\\3\")", "g"); } } { print }' $file; done Requested-by: Masahiro Yamada <masahiroy@kernel.org> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://mail.google.com/mail/u/2/#inbox/FMfcgzQXKWgMmjdFwwdsfgxzKpVHWPlc Acked-by: Greg KH <gregkh@linuxfoundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2024-11-19Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netPaolo Abeni
Merge in late fixes to prepare for the 6.13 net-next PR. Conflicts: include/linux/phy.h 41ffcd95015f net: phy: fix phylib's dual eee_enabled 721aa69e708b net: phy: convert eee_broken_modes to a linkmode bitmap https://lore.kernel.org/all/20241118135512.1039208b@canb.auug.org.au/ drivers/net/ethernet/wangxun/txgbe/txgbe_phy.c 2160428bcb20 net: txgbe: fix null pointer to pcs 2160428bcb20 net: txgbe: remove GPIO interrupt controller Adjacent commits: include/linux/phy.h 41ffcd95015f net: phy: fix phylib's dual eee_enabled 516a5f11eb97 net: phy: respect cached advertising when re-enabling EEE Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2024-11-15ndo_fdb_add: Add a parameter to report whether notification was sentPetr Machata
Currently when FDB entries are added to or deleted from a VXLAN netdevice, the VXLAN driver emits one notification, including the VXLAN-specific attributes. The core however always sends a notification as well, a generic one. Thus two notifications are unnecessarily sent for these operations. A similar situation comes up with bridge driver, which also emits notifications on its own: # ip link add name vx type vxlan id 1000 dstport 4789 # bridge monitor fdb & [1] 1981693 # bridge fdb add de:ad:be:ef:13:37 dev vx self dst 192.0.2.1 de:ad:be:ef:13:37 dev vx dst 192.0.2.1 self permanent de:ad:be:ef:13:37 dev vx self permanent In order to prevent this duplicity, add a paremeter to ndo_fdb_add, bool *notified. The flag is primed to false, and if the callee sends a notification on its own, it sets it to true, thus informing the core that it should not generate another notification. Signed-off-by: Petr Machata <petrm@nvidia.com> Reviewed-by: Amit Cohen <amcohen@nvidia.com> Reviewed-by: Nikolay Aleksandrov <razor@blackwall.org> Link: https://patch.msgid.link/cbf6ae8195e85cbf922f8058ce4eba770f3b71ed.1731589511.git.petrm@nvidia.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-11-14i40e: Fix handling changed priv flagsPeter Große
After assembling the new private flags on a PF, the operation to determine the changed flags uses the wrong bitmaps. Instead of xor-ing orig_flags with new_flags, it uses the still unchanged pf->flags, thus changed_flags is always 0. Fix it by using the correct bitmaps. The issue was discovered while debugging why disabling source pruning stopped working with release 6.7. Although the new flags will be copied to pf->flags later on in that function, disabling source pruning requires a reset of the PF, which was skipped due to this bug. Disabling source pruning: $ sudo ethtool --set-priv-flags eno1 disable-source-pruning on $ sudo ethtool --show-priv-flags eno1 Private flags for eno1: MFP : off total-port-shutdown : off LinkPolling : off flow-director-atr : on veb-stats : off hw-atr-eviction : off link-down-on-close : off legacy-rx : off disable-source-pruning: on disable-fw-lldp : off rs-fec : off base-r-fec : off vf-vlan-pruning : off Regarding reproducing: I observed the issue with a rather complicated lab setup, where * two VLAN interfaces are created on eno1 * each with a different MAC address assigned * each moved into a separate namespace * both VLANs are bridged externally, so they form a single layer 2 network The external bridge is done via a channel emulator adding packet loss and delay and the application in the namespaces tries to send/receive traffic and measure the performance. Sender and receiver are separated by namespaces, yet the network card "sees its own traffic" send back to it. To make that work, source pruning has to be disabled. Cc: stable@vger.kernel.org Fixes: 70756d0a4727 ("i40e: Use DECLARE_BITMAP for flags and hw_features fields in i40e_pf") Signed-off-by: Peter Große <pegro@friiks.de> Reviewed-by: Paul Menzel <pmenzel@molgen.mpg.de> Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com> Tested-by: Pucha Himasekhar Reddy <himasekharx.reddy.pucha@intel.com> (A Contingent worker at Intel) Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com> Link: https://patch.msgid.link/20241113210705.1296408-1-anthony.l.nguyen@intel.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-11-04i40e: fix race condition by adding filter's intermediate sync stateAleksandr Loktionov
Fix a race condition in the i40e driver that leads to MAC/VLAN filters becoming corrupted and leaking. Address the issue that occurs under heavy load when multiple threads are concurrently modifying MAC/VLAN filters by setting mac and port VLAN. 1. Thread T0 allocates a filter in i40e_add_filter() within i40e_ndo_set_vf_port_vlan(). 2. Thread T1 concurrently frees the filter in __i40e_del_filter() within i40e_ndo_set_vf_mac(). 3. Subsequently, i40e_service_task() calls i40e_sync_vsi_filters(), which refers to the already freed filter memory, causing corruption. Reproduction steps: 1. Spawn multiple VFs. 2. Apply a concurrent heavy load by running parallel operations to change MAC addresses on the VFs and change port VLANs on the host. 3. Observe errors in dmesg: "Error I40E_AQ_RC_ENOSPC adding RX filters on VF XX, please set promiscuous on manually for VF XX". Exact code for stable reproduction Intel can't open-source now. The fix involves implementing a new intermediate filter state, I40E_FILTER_NEW_SYNC, for the time when a filter is on a tmp_add_list. These filters cannot be deleted from the hash list directly but must be removed using the full process. Fixes: 278e7d0b9d68 ("i40e: store MAC/VLAN filters in a hash with the MAC Address as key") Signed-off-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com> Tested-by: Pucha Himasekhar Reddy <himasekharx.reddy.pucha@intel.com> (A Contingent worker at Intel) Reviewed-by: Michal Schmidt <mschmidt@redhat.com> Tested-by: Michal Schmidt <mschmidt@redhat.com> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2024-10-08i40e: Fix macvlan leak by synchronizing access to mac_filter_hashAleksandr Loktionov
This patch addresses a macvlan leak issue in the i40e driver caused by concurrent access to vsi->mac_filter_hash. The leak occurs when multiple threads attempt to modify the mac_filter_hash simultaneously, leading to inconsistent state and potential memory leaks. To fix this, we now wrap the calls to i40e_del_mac_filter() and zeroing vf->default_lan_addr.addr with spin_lock/unlock_bh(&vsi->mac_filter_hash_lock), ensuring atomic operations and preventing concurrent access. Additionally, we add lockdep_assert_held(&vsi->mac_filter_hash_lock) in i40e_add_mac_filter() to help catch similar issues in the future. Reproduction steps: 1. Spawn VFs and configure port vlan on them. 2. Trigger concurrent macvlan operations (e.g., adding and deleting portvlan and/or mac filters). 3. Observe the potential memory leak and inconsistent state in the mac_filter_hash. This synchronization ensures the integrity of the mac_filter_hash and prevents the described leak. Fixes: fed0d9f13266 ("i40e: Fix VF's MAC Address change on VM") Reviewed-by: Arkadiusz Kubalewski <arkadiusz.kubalewski@intel.com> Signed-off-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com> Reviewed-by: Simon Horman <horms@kernel.org> Tested-by: Rafal Romanowski <rafal.romanowski@intel.com> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2024-09-06i40e: Remove setting of RX software timestampGal Pressman
The responsibility for reporting of RX software timestamp has moved to the core layer (see __ethtool_get_ts_info()), remove usage from the device drivers. Reviewed-by: Carolina Jubran <cjubran@nvidia.com> Reviewed-by: Rahul Rameshbabu <rrameshbabu@nvidia.com> Signed-off-by: Gal Pressman <gal@nvidia.com> Reviewed-by: Tony Nguyen <anthony.l.nguyen@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2024-08-30i40e: Add Energy Efficient Ethernet ability for X710 Base-T/KR/KX cardsAleksandr Loktionov
Add "EEE: Enabled/Disabled" to dmesg for supported X710 Base-T/KR/KX cards. According to the IEEE standard report the EEE ability and the EEE Link Partner ability. Use the kernel's 'ethtool_keee' structure and report EEE link modes. Example: dmesg | grep 'NIC Link is' ethtool --show-eee <device> Before: NIC Link is Up, 10 Gbps Full Duplex, Flow Control: None Supported EEE link modes: Not reported Advertised EEE link modes: Not reported Link partner advertised EEE link modes: Not reported After: NIC Link is Up, 10 Gbps Full Duplex, Flow Control: None, EEE: Enabled Supported EEE link modes: 100baseT/Full 1000baseT/Full 10000baseT/Full Advertised EEE link modes: 100baseT/Full 1000baseT/Full 10000baseT/Full Link partner advertised EEE link modes: 100baseT/Full 1000baseT/Full 10000baseT/Full Reviewed-by: Arkadiusz Kubalewski <arkadiusz.kubalewski@intel.com> Signed-off-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com> Reviewed-by: Jacob Keller <jacob.e.keller@intel.com> Reviewed-by: Simon Horman <horms@kernel.org> Tested-by: Pucha Himasekhar Reddy <himasekharx.reddy.pucha@intel.com> (A Contingent worker at Intel) Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2024-07-15Merge branch 'net-make-timestamping-selectable'Jakub Kicinski
First part of "net: Make timestamping selectable" from Kory Maincent. Change the driver-facing type already to lower rebasing pain. Link: https://lore.kernel.org/20240709-feature_ptp_netnext-v17-0-b5317f50df2a@bootlin.com/ Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-07-15net: Add struct kernel_ethtool_ts_infoKory Maincent
In prevision to add new UAPI for hwtstamp we will be limited to the struct ethtool_ts_info that is currently passed in fixed binary format through the ETHTOOL_GET_TS_INFO ethtool ioctl. It would be good if new kernel code already started operating on an extensible kernel variant of that structure, similar in concept to struct kernel_hwtstamp_config vs struct hwtstamp_config. Since struct ethtool_ts_info is in include/uapi/linux/ethtool.h, here we introduce the kernel-only structure in include/linux/ethtool.h. The manual copy is then made in the function called by ETHTOOL_GET_TS_INFO. Acked-by: Shannon Nelson <shannon.nelson@amd.com> Acked-by: Alexandra Winter <wintera@linux.ibm.com> Signed-off-by: Kory Maincent <kory.maincent@bootlin.com> Link: https://patch.msgid.link/20240709-feature_ptp_netnext-v17-6-b5317f50df2a@bootlin.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-07-13Merge branch '40GbE' of ↵Jakub Kicinski
git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/next-queue Tony Nguyen says: ==================== Intel Wired LAN Driver Updates 2024-07-11 (net/intel) This series contains updates to most Intel network drivers. Tony removes MODULE_AUTHOR from drivers containing the entry. Simon Horman corrects a kdoc entry for i40e. Pawel adds implementation for devlink param "local_forwarding" on ice. Michal removes unneeded call, and code, for eswitch rebuild for ice. Sasha removed a no longer used field from igc. * '40GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/next-queue: igc: Remove the internal 'eee_advert' field ice: remove eswitch rebuild ice: Add support for devlink local_forwarding param i40e: correct i40e_addr_to_hkey() name in kdoc net: intel: Remove MODULE_AUTHORs ==================== Link: https://patch.msgid.link/20240711201932.2019925-1-anthony.l.nguyen@intel.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-07-12Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netJakub Kicinski
Cross-merge networking fixes after downstream PR. Conflicts: drivers/net/ethernet/broadcom/bnxt/bnxt.c f7ce5eb2cb79 ("bnxt_en: Fix crash in bnxt_get_max_rss_ctx_ring()") 20c8ad72eb7f ("eth: bnxt: use the RSS context XArray instead of the local list") Adjacent changes: net/ethtool/ioctl.c 503757c80928 ("net: ethtool: Fix RSS setting") eac9122f0c41 ("net: ethtool: record custom RSS contexts in the XArray") Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-07-11i40e: fix: remove needless retries of NVM updateAleksandr Loktionov
Remove wrong EIO to EGAIN conversion and pass all errors as is. After commit 230f3d53a547 ("i40e: remove i40e_status"), which should only replace F/W specific error codes with Linux kernel generic, all EIO errors suddenly started to be converted into EAGAIN which leads nvmupdate to retry until it timeouts and sometimes fails after more than 20 minutes in the middle of NVM update, so NVM becomes corrupted. The bug affects users only at the time when they try to update NVM, and only F/W versions that generate errors while nvmupdate. For example, X710DA2 with 0x8000ECB7 F/W is affected, but there are probably more... Command for reproduction is just NVM update: ./nvmupdate64 In the log instead of: i40e_nvmupd_exec_aq err I40E_ERR_ADMIN_QUEUE_ERROR aq_err I40E_AQ_RC_ENOMEM) appears: i40e_nvmupd_exec_aq err -EIO aq_err I40E_AQ_RC_ENOMEM i40e: eeprom check failed (-5), Tx/Rx traffic disabled The problematic code did silently convert EIO into EAGAIN which forced nvmupdate to ignore EAGAIN error and retry the same operation until timeout. That's why NVM update takes 20+ minutes to finish with the fail in the end. Fixes: 230f3d53a547 ("i40e: remove i40e_status") Co-developed-by: Kelvin Kang <kelvin.kang@intel.com> Signed-off-by: Kelvin Kang <kelvin.kang@intel.com> Reviewed-by: Arkadiusz Kubalewski <arkadiusz.kubalewski@intel.com> Signed-off-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com> Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com> Tested-by: Tony Brelinski <tony.brelinski@intel.com> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com> Reviewed-by: Jacob Keller <jacob.e.keller@intel.com> Link: https://patch.msgid.link/20240710224455.188502-1-anthony.l.nguyen@intel.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-07-11Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netJakub Kicinski
Cross-merge networking fixes after downstream PR. Conflicts: net/sched/act_ct.c 26488172b029 ("net/sched: Fix UAF when resolving a clash") 3abbd7ed8b76 ("act_ct: prepare for stolen verdict coming from conntrack and nat engine") No adjacent changes. Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-07-11i40e: correct i40e_addr_to_hkey() name in kdocSimon Horman
Correct name of i40e_addr_to_hkey() in it's kdoc. kernel-doc -none reports: drivers/net/ethernet/intel/i40e/i40e.h:739: warning: expecting prototype for i40e_mac_to_hkey(). Prototype was for i40e_addr_to_hkey() instead Signed-off-by: Simon Horman <horms@kernel.org> Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2024-07-11net: intel: Remove MODULE_AUTHORsTony Nguyen
We are moving away from the Sourceforge email address. Rather than removing or updating the email for the affected entries, remove the MODULE_AUTHOR altogether as its usage is incorrect [1]. Link: https://lore.kernel.org/netdev/20200626115236.7f36d379@kicinski-fedora-pc1c0hjn.dhcp.thefacebook.com/ [1] Reviewed-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Acked-by: Alexander Lobakin <aleksander.lobakin@intel.com> # libeth, libie Reviewed-by: Simon Horman <horms@kernel.org> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2024-07-09i40e: Fix XDP program unloading while removing the driverMichal Kubiak
The commit 6533e558c650 ("i40e: Fix reset path while removing the driver") introduced a new PF state "__I40E_IN_REMOVE" to block modifying the XDP program while the driver is being removed. Unfortunately, such a change is useful only if the ".ndo_bpf()" callback was called out of the rmmod context because unloading the existing XDP program is also a part of driver removing procedure. In other words, from the rmmod context the driver is expected to unload the XDP program without reporting any errors. Otherwise, the kernel warning with callstack is printed out to dmesg. Example failing scenario: 1. Load the i40e driver. 2. Load the XDP program. 3. Unload the i40e driver (using "rmmod" command). The example kernel warning log: [ +0.004646] WARNING: CPU: 94 PID: 10395 at net/core/dev.c:9290 unregister_netdevice_many_notify+0x7a9/0x870 [...] [ +0.010959] RIP: 0010:unregister_netdevice_many_notify+0x7a9/0x870 [...] [ +0.002726] Call Trace: [ +0.002457] <TASK> [ +0.002119] ? __warn+0x80/0x120 [ +0.003245] ? unregister_netdevice_many_notify+0x7a9/0x870 [ +0.005586] ? report_bug+0x164/0x190 [ +0.003678] ? handle_bug+0x3c/0x80 [ +0.003503] ? exc_invalid_op+0x17/0x70 [ +0.003846] ? asm_exc_invalid_op+0x1a/0x20 [ +0.004200] ? unregister_netdevice_many_notify+0x7a9/0x870 [ +0.005579] ? unregister_netdevice_many_notify+0x3cc/0x870 [ +0.005586] unregister_netdevice_queue+0xf7/0x140 [ +0.004806] unregister_netdev+0x1c/0x30 [ +0.003933] i40e_vsi_release+0x87/0x2f0 [i40e] [ +0.004604] i40e_remove+0x1a1/0x420 [i40e] [ +0.004220] pci_device_remove+0x3f/0xb0 [ +0.003943] device_release_driver_internal+0x19f/0x200 [ +0.005243] driver_detach+0x48/0x90 [ +0.003586] bus_remove_driver+0x6d/0xf0 [ +0.003939] pci_unregister_driver+0x2e/0xb0 [ +0.004278] i40e_exit_module+0x10/0x5f0 [i40e] [ +0.004570] __do_sys_delete_module.isra.0+0x197/0x310 [ +0.005153] do_syscall_64+0x85/0x170 [ +0.003684] ? syscall_exit_to_user_mode+0x69/0x220 [ +0.004886] ? do_syscall_64+0x95/0x170 [ +0.003851] ? exc_page_fault+0x7e/0x180 [ +0.003932] entry_SYSCALL_64_after_hwframe+0x71/0x79 [ +0.005064] RIP: 0033:0x7f59dc9347cb [ +0.003648] Code: 73 01 c3 48 8b 0d 65 16 0c 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 b0 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 35 16 0c 00 f7 d8 64 89 01 48 [ +0.018753] RSP: 002b:00007ffffac99048 EFLAGS: 00000206 ORIG_RAX: 00000000000000b0 [ +0.007577] RAX: ffffffffffffffda RBX: 0000559b9bb2f6e0 RCX: 00007f59dc9347cb [ +0.007140] RDX: 0000000000000000 RSI: 0000000000000800 RDI: 0000559b9bb2f748 [ +0.007146] RBP: 00007ffffac99070 R08: 1999999999999999 R09: 0000000000000000 [ +0.007133] R10: 00007f59dc9a5ac0 R11: 0000000000000206 R12: 0000000000000000 [ +0.007141] R13: 00007ffffac992d8 R14: 0000559b9bb2f6e0 R15: 0000000000000000 [ +0.007151] </TASK> [ +0.002204] ---[ end trace 0000000000000000 ]--- Fix this by checking if the XDP program is being loaded or unloaded. Then, block only loading a new program while "__I40E_IN_REMOVE" is set. Also, move testing "__I40E_IN_REMOVE" flag to the beginning of XDP_SETUP callback to avoid unnecessary operations and checks. Fixes: 6533e558c650 ("i40e: Fix reset path while removing the driver") Signed-off-by: Michal Kubiak <michal.kubiak@intel.com> Reviewed-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com> Tested-by: Chandan Kumar Rout <chandanx.rout@intel.com> (A Contingent Worker at Intel) Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com> Link: https://patch.msgid.link/20240708230750.625986-1-anthony.l.nguyen@intel.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-06-10net: intel: Use *-y instead of *-objs in MakefileAndy Shevchenko
*-objs suffix is reserved rather for (user-space) host programs while usually *-y suffix is used for kernel drivers (although *-objs works for that purpose for now). Let's correct the old usages of *-objs in Makefiles. Reviewed-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com> Reviewed-by: Alexander Lobakin <aleksander.lobakin@intel.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Jacob Keller <jacob.e.keller@intel.com> Tested-by: Pucha Himasekhar Reddy <himasekharx.reddy.pucha@intel.com> Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Link: https://lore.kernel.org/r/20240607-next-2024-06-03-intel-next-batch-v3-1-d1470cee3347@intel.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-05-29i40e: Fully suspend and resume IO operations in EEH caseThinh Tran
When EEH events occurs, the callback functions in the i40e, which are managed by the EEH driver, will completely suspend and resume all IO operations. - In the PCI error detected callback, replaced i40e_prep_for_reset() with i40e_io_suspend(). The change is to fully suspend all I/O operations - In the PCI error slot reset callback, replaced pci_enable_device_mem() with pci_enable_device(). This change enables both I/O and memory of the device. - In the PCI error resume callback, replaced i40e_handle_reset_warning() with i40e_io_resume(). This change allows the system to resume I/O operations Fixes: a5f3d2c17b07 ("powerpc/pseries/pci: Add MSI domains") Reviewed-by: Jacob Keller <jacob.e.keller@intel.com> Tested-by: Robert Thomas <rob.thomas@ibm.com> Signed-off-by: Thinh Tran <thinhtr@linux.ibm.com> Reviewed-by: Simon Horman <horms@kernel.org> Tested-by: Pucha Himasekhar Reddy <himasekharx.reddy.pucha@intel.com> Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Link: https://lore.kernel.org/r/20240528-net-2024-05-28-intel-net-fixes-v1-3-dc8593d2bbc6@intel.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-05-29i40e: factoring out i40e_suspend/i40e_resumeThinh Tran
Two new functions, i40e_io_suspend() and i40e_io_resume(), have been introduced. These functions were factored out from the existing i40e_suspend() and i40e_resume() respectively. This factoring was done due to concerns about the logic of the I40E_SUSPENSED state, which caused the device to be unable to recover. The functions are now used in the EEH handling for device suspend/resume callbacks. The function i40e_enable_mc_magic_wake() has been moved ahead of i40e_io_suspend() to ensure it is declared before being used. Tested-by: Robert Thomas <rob.thomas@ibm.com> Signed-off-by: Thinh Tran <thinhtr@linux.ibm.com> Reviewed-by: Simon Horman <horms@kernel.org> Tested-by: Pucha Himasekhar Reddy <himasekharx.reddy.pucha@intel.com> Reviewed-by: Jacob Keller <jacob.e.keller@intel.com> Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Link: https://lore.kernel.org/r/20240528-net-2024-05-28-intel-net-fixes-v1-2-dc8593d2bbc6@intel.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-05-22tracing/treewide: Remove second parameter of __assign_str()Steven Rostedt (Google)
With the rework of how the __string() handles dynamic strings where it saves off the source string in field in the helper structure[1], the assignment of that value to the trace event field is stored in the helper value and does not need to be passed in again. This means that with: __string(field, mystring) Which use to be assigned with __assign_str(field, mystring), no longer needs the second parameter and it is unused. With this, __assign_str() will now only get a single parameter. There's over 700 users of __assign_str() and because coccinelle does not handle the TRACE_EVENT() macro I ended up using the following sed script: git grep -l __assign_str | while read a ; do sed -e 's/\(__assign_str([^,]*[^ ,]\) *,[^;]*/\1)/' $a > /tmp/test-file; mv /tmp/test-file $a; done I then searched for __assign_str() that did not end with ';' as those were multi line assignments that the sed script above would fail to catch. Note, the same updates will need to be done for: __assign_str_len() __assign_rel_str() __assign_rel_str_len() I tested this with both an allmodconfig and an allyesconfig (build only for both). [1] https://lore.kernel.org/linux-trace-kernel/20240222211442.634192653@goodmis.org/ Link: https://lore.kernel.org/linux-trace-kernel/20240516133454.681ba6a0@rorschach.local.home Cc: Masami Hiramatsu <mhiramat@kernel.org> Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Julia Lawall <Julia.Lawall@inria.fr> Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org> Acked-by: Jani Nikula <jani.nikula@intel.com> Acked-by: Christian König <christian.koenig@amd.com> for the amdgpu parts. Acked-by: Thomas Hellström <thomas.hellstrom@linux.intel.com> #for Acked-by: Rafael J. Wysocki <rafael@kernel.org> # for thermal Acked-by: Takashi Iwai <tiwai@suse.de> Acked-by: Darrick J. Wong <djwong@kernel.org> # xfs Tested-by: Guenter Roeck <linux@roeck-us.net>
2024-05-20Merge tag 'dma-mapping-6.10-2024-05-20' of ↵Linus Torvalds
git://git.infradead.org/users/hch/dma-mapping Pull dma-mapping updates from Christoph Hellwig: - optimize DMA sync calls when they are no-ops (Alexander Lobakin) - fix swiotlb padding for untrusted devices (Michael Kelley) - add documentation for swiotb (Michael Kelley) * tag 'dma-mapping-6.10-2024-05-20' of git://git.infradead.org/users/hch/dma-mapping: dma: fix DMA sync for drivers not calling dma_set_mask*() xsk: use generic DMA sync shortcut instead of a custom one page_pool: check for DMA sync shortcut earlier page_pool: don't use driver-set flags field directly page_pool: make sure frag API fields don't span between cachelines iommu/dma: avoid expensive indirect calls for sync operations dma: avoid redundant calls for sync operations dma: compile-out DMA sync op calls when not used iommu/dma: fix zeroing of bounce buffer padding used by untrusted devices swiotlb: remove alloc_size argument to swiotlb_tbl_map_single() Documentation/core-api: add swiotlb documentation
2024-05-08i40e: flower: validate control flagsAsbjørn Sloth Tønnesen
This driver currently doesn't support any control flags. Use flow_rule_has_control_flags() to check for control flags, such as can be set through `tc flower ... ip_flags frag`. In case any control flags are masked, flow_rule_has_control_flags() sets a NL extended error message, and we return -EOPNOTSUPP. Only compile-tested. Signed-off-by: Asbjørn Sloth Tønnesen <ast@fiberby.net> Reviewed-by: Simon Horman <horms@kernel.org> Tested-by: Sujai Buvaneswaran <sujai.buvaneswaran@intel.com> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2024-05-08xsk: use generic DMA sync shortcut instead of a custom oneAlexander Lobakin
XSk infra's been using its own DMA sync shortcut to try avoiding redundant function calls. Now that there is a generic one, remove the custom implementation and rely on the generic helpers. xsk_buff_dma_sync_for_cpu() doesn't need the second argument anymore, remove it. Signed-off-by: Alexander Lobakin <aleksander.lobakin@intel.com> Signed-off-by: Christoph Hellwig <hch@lst.de>
2024-05-07net: annotate writes on dev->mtu from ndo_change_mtu()Eric Dumazet
Simon reported that ndo_change_mtu() methods were never updated to use WRITE_ONCE(dev->mtu, new_mtu) as hinted in commit 501a90c94510 ("inet: protect against too small mtu values.") We read dev->mtu without holding RTNL in many places, with READ_ONCE() annotations. It is time to take care of ndo_change_mtu() methods to use corresponding WRITE_ONCE() Signed-off-by: Eric Dumazet <edumazet@google.com> Reported-by: Simon Horman <horms@kernel.org> Closes: https://lore.kernel.org/netdev/20240505144608.GB67882@kernel.org/ Reviewed-by: Jacob Keller <jacob.e.keller@intel.com> Reviewed-by: Sabrina Dubroca <sd@queasysnail.net> Reviewed-by: Simon Horman <horms@kernel.org> Acked-by: Shannon Nelson <shannon.nelson@amd.com> Link: https://lore.kernel.org/r/20240506102812.3025432-1-edumazet@google.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-04-30i40e: Add and use helper to reconfigure TC for given VSIIvan Vecera
Add helper i40e_vsi_reconfig_tc(vsi) that configures TC for given VSI using previously stored TC bitmap. Effectively replaces open-coded patterns: enabled_tc = vsi->tc_config.enabled_tc; vsi->tc_config.enabled_tc = 0; i40e_vsi_config_tc(vsi, enabled_tc); Reviewed-by: Michal Schmidt <mschmidt@redhat.com> Tested-by: Pucha Himasekhar Reddy <himasekharx.reddy.pucha@intel.com> Signed-off-by: Ivan Vecera <ivecera@redhat.com> Reviewed-by: Simon Horman <horms@kernel.org> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2024-04-30i40e: Add helper to access main VEBIvan Vecera
Add a helper to access main VEB: i40e_pf_get_main_veb(pf) replaces 'pf->veb[pf->lan_veb]' Reviewed-by: Michal Schmidt <mschmidt@redhat.com> Reviewed-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com> Tested-by: Pucha Himasekhar Reddy <himasekharx.reddy.pucha@intel.com> Signed-off-by: Ivan Vecera <ivecera@redhat.com> Reviewed-by: Simon Horman <horms@kernel.org> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2024-04-30i40e: Consolidate checks whether given VSI is mainIvan Vecera
In the driver code there are 3 types of checks whether given VSI is main or not: 1. vsi->type ==/!= I40E_VSI_MAIN 2. vsi ==/!= pf->vsi[pf->lan_vsi] 3. vsi->seid ==/!= pf->vsi[pf->lan_vsi]->seid All of them are equivalent and can be consolidated. Convert cases 2 and 3 to case 1. Reviewed-by: Michal Schmidt <mschmidt@redhat.com> Tested-by: Pucha Himasekhar Reddy <himasekharx.reddy.pucha@intel.com> Signed-off-by: Ivan Vecera <ivecera@redhat.com> Reviewed-by: Simon Horman <horms@kernel.org> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2024-04-30i40e: Add helper to access main VSIIvan Vecera
Add simple helper i40e_pf_get_main_vsi(pf) to access main VSI that replaces pattern 'pf->vsi[pf->lan_vsi]' Reviewed-by: Michal Schmidt <mschmidt@redhat.com> Tested-by: Pucha Himasekhar Reddy <himasekharx.reddy.pucha@intel.com> Signed-off-by: Ivan Vecera <ivecera@redhat.com> Reviewed-by: Simon Horman <horms@kernel.org> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2024-04-30i40e: Refactor argument of i40e_detect_recover_hung()Ivan Vecera
Commit 07d44190a389 ("i40e/i40evf: Detect and recover hung queue scenario") changes i40e_detect_recover_hung() argument type from i40e_pf* to i40e_vsi* to be shareable by both i40e and i40evf. Because the i40evf does not exist anymore and the function is exclusively used by i40e we can revert this change. Reviewed-by: Michal Schmidt <mschmidt@redhat.com> Tested-by: Pucha Himasekhar Reddy <himasekharx.reddy.pucha@intel.com> Signed-off-by: Ivan Vecera <ivecera@redhat.com> Reviewed-by: Simon Horman <horms@kernel.org> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2024-04-30i40e: Refactor argument of several client notification functionsIvan Vecera
Commit 0ef2d5afb12d ("i40e: KISS the client interface") simplified the client interface so in practice it supports only one client per i40e netdev. But we have still 2 notification functions that uses as parameter a pointer to VSI of netdevice associated with the client. After the mentioned commit only possible and used VSI is the main (LAN) VSI. So refactor these functions so they are called with PF pointer argument and the associated VSI (LAN) is taken inside them. Reviewed-by: Michal Schmidt <mschmidt@redhat.com> Tested-by: Pucha Himasekhar Reddy <himasekharx.reddy.pucha@intel.com> Signed-off-by: Ivan Vecera <ivecera@redhat.com> Reviewed-by: Simon Horman <horms@kernel.org> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2024-04-30i40e: Remove flags field from i40e_vebIvan Vecera
The field is initialized always to zero and it is never read. Remove it. Reviewed-by: Michal Schmidt <mschmidt@redhat.com> Reviewed-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com> Reviewed-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com> Tested-by: Pucha Himasekhar Reddy <himasekharx.reddy.pucha@intel.com> Signed-off-by: Ivan Vecera <ivecera@redhat.com> Reviewed-by: Simon Horman <horms@kernel.org> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2024-04-25Merge branch '40GbE' of ↵Jakub Kicinski
git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/next-queue Tony Nguyen says: ==================== net: intel: start The Great Code Dedup + Page Pool for iavf Alexander Lobakin says: Here's a two-shot: introduce {,Intel} Ethernet common library (libeth and libie) and switch iavf to Page Pool. Details are in the commit messages; here's a summary: Not a secret there's a ton of code duplication between two and more Intel ethernet modules. Before introducing new changes, which would need to be copied over again, start decoupling the already existing duplicate functionality into a new module, which will be shared between several Intel Ethernet drivers. The first name that came to my mind was "libie" -- "Intel Ethernet common library". Also this sounds like "lovelie" (-> one word, no "lib I E" pls) and can be expanded as "lib Internet Explorer" :P The "generic", pure-software part is placed separately, so that it can be easily reused in any driver by any vendor without linking to the Intel pre-200G guts. In a few words, it's something any modern driver does the same way, but nobody moved it level up (yet). The series is only the beginning. From now on, adding every new feature or doing any good driver refactoring will remove much more lines than add for quite some time. There's a basic roadmap with some deduplications planned already, not speaking of that touching every line now asks: "can I share this?". The final destination is very ambitious: have only one unified driver for at least i40e, ice, iavf, and idpf with a struct ops for each generation. That's never gonna happen, right? But you still can at least try. PP conversion for iavf lands within the same series as these two are tied closely. libie will support Page Pool model only, so that a driver can't use much of the lib until it's converted. iavf is only the example, the rest will eventually be converted soon on a per-driver basis. That is when it gets really interesting. Stay tech. * '40GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/next-queue: MAINTAINERS: add entry for libeth and libie iavf: switch to Page Pool iavf: pack iavf_ring more efficiently libeth: add Rx buffer management page_pool: add DMA-sync-for-CPU inline helper page_pool: constify some read-only function arguments slab: introduce kvmalloc_array_node() and kvcalloc_node() iavf: drop page splitting and recycling iavf: kill "legacy-rx" for good net: intel: introduce {, Intel} Ethernet common library ==================== Link: https://lore.kernel.org/r/20240424203559.3420468-1-anthony.l.nguyen@intel.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-04-25Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netJakub Kicinski
Cross-merge networking fixes after downstream PR. Conflicts: drivers/net/ethernet/ti/icssg/icssg_prueth.c net/mac80211/chan.c 89884459a0b9 ("wifi: mac80211: fix idle calculation with multi-link") 87f5500285fb ("wifi: mac80211: simplify ieee80211_assign_link_chanctx()") https://lore.kernel.org/all/20240422105623.7b1fbda2@canb.auug.org.au/ net/unix/garbage.c 1971d13ffa84 ("af_unix: Suppress false-positive lockdep splat for spin_lock() in __unix_gc().") 4090fa373f0e ("af_unix: Replace garbage collection algorithm.") drivers/net/ethernet/ti/icssg/icssg_prueth.c drivers/net/ethernet/ti/icssg/icssg_common.c 4dcd0e83ea1d ("net: ti: icssg-prueth: Fix signedness bug in prueth_init_rx_chns()") e2dc7bfd677f ("net: ti: icssg-prueth: Move common functions into a separate file") No adjacent changes. Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-04-25i40e: Report MFS in decimal base instead of hexErwan Velu
If the MFS is set below the default (0x2600), a warning message is reported like the following : MFS for port 1 has been set below the default: 600 This message is a bit confusing as the number shown here (600) is in fact an hexa number: 0x600 = 1536 Without any explicit "0x" prefix, this message is read like the MFS is set to 600 bytes. MFS, as per MTUs, are usually expressed in decimal base. This commit reports both current and default MFS values in decimal so it's less confusing for end-users. A typical warning message looks like the following : MFS for port 1 (1536) has been set below the default (9728) Signed-off-by: Erwan Velu <e.velu@criteo.com> Reviewed-by: Simon Horman <horms@kernel.org> Tested-by: Tony Brelinski <tony.brelinski@intel.com> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com> Fixes: 3a2c6ced90e1 ("i40e: Add a check to see if MFS is set") Link: https://lore.kernel.org/r/20240423182723.740401-3-anthony.l.nguyen@intel.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-04-25i40e: Do not use WQ_MEM_RECLAIM flag for workqueueSindhu Devale
Issue reported by customer during SRIOV testing, call trace: When both i40e and the i40iw driver are loaded, a warning in check_flush_dependency is being triggered. This seems to be because of the i40e driver workqueue is allocated with the WQ_MEM_RECLAIM flag, and the i40iw one is not. Similar error was encountered on ice too and it was fixed by removing the flag. Do the same for i40e too. [Feb 9 09:08] ------------[ cut here ]------------ [ +0.000004] workqueue: WQ_MEM_RECLAIM i40e:i40e_service_task [i40e] is flushing !WQ_MEM_RECLAIM infiniband:0x0 [ +0.000060] WARNING: CPU: 0 PID: 937 at kernel/workqueue.c:2966 check_flush_dependency+0x10b/0x120 [ +0.000007] Modules linked in: snd_seq_dummy snd_hrtimer snd_seq snd_timer snd_seq_device snd soundcore nls_utf8 cifs cifs_arc4 nls_ucs2_utils rdma_cm iw_cm ib_cm cifs_md4 dns_resolver netfs qrtr rfkill sunrpc vfat fat intel_rapl_msr intel_rapl_common irdma intel_uncore_frequency intel_uncore_frequency_common ice ipmi_ssif isst_if_common skx_edac nfit libnvdimm x86_pkg_temp_thermal intel_powerclamp gnss coretemp ib_uverbs rapl intel_cstate ib_core iTCO_wdt iTCO_vendor_support acpi_ipmi mei_me ipmi_si intel_uncore ioatdma i2c_i801 joydev pcspkr mei ipmi_devintf lpc_ich intel_pch_thermal i2c_smbus ipmi_msghandler acpi_power_meter acpi_pad xfs libcrc32c ast sd_mod drm_shmem_helper t10_pi drm_kms_helper sg ixgbe drm i40e ahci crct10dif_pclmul libahci crc32_pclmul igb crc32c_intel libata ghash_clmulni_intel i2c_algo_bit mdio dca wmi dm_mirror dm_region_hash dm_log dm_mod fuse [ +0.000050] CPU: 0 PID: 937 Comm: kworker/0:3 Kdump: loaded Not tainted 6.8.0-rc2-Feb-net_dev-Qiueue-00279-gbd43c5687e05 #1 [ +0.000003] Hardware name: Intel Corporation S2600BPB/S2600BPB, BIOS SE5C620.86B.02.01.0013.121520200651 12/15/2020 [ +0.000001] Workqueue: i40e i40e_service_task [i40e] [ +0.000024] RIP: 0010:check_flush_dependency+0x10b/0x120 [ +0.000003] Code: ff 49 8b 54 24 18 48 8d 8b b0 00 00 00 49 89 e8 48 81 c6 b0 00 00 00 48 c7 c7 b0 97 fa 9f c6 05 8a cc 1f 02 01 e8 35 b3 fd ff <0f> 0b e9 10 ff ff ff 80 3d 78 cc 1f 02 00 75 94 e9 46 ff ff ff 90 [ +0.000002] RSP: 0018:ffffbd294976bcf8 EFLAGS: 00010282 [ +0.000002] RAX: 0000000000000000 RBX: ffff94d4c483c000 RCX: 0000000000000027 [ +0.000001] RDX: ffff94d47f620bc8 RSI: 0000000000000001 RDI: ffff94d47f620bc0 [ +0.000001] RBP: 0000000000000000 R08: 0000000000000000 R09: 00000000ffff7fff [ +0.000001] R10: ffffbd294976bb98 R11: ffffffffa0be65e8 R12: ffff94c5451ea180 [ +0.000001] R13: ffff94c5ab5e8000 R14: ffff94c5c20b6e05 R15: ffff94c5f1330ab0 [ +0.000001] FS: 0000000000000000(0000) GS:ffff94d47f600000(0000) knlGS:0000000000000000 [ +0.000002] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ +0.000001] CR2: 00007f9e6f1fca70 CR3: 0000000038e20004 CR4: 00000000007706f0 [ +0.000000] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ +0.000001] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ +0.000001] PKRU: 55555554 [ +0.000001] Call Trace: [ +0.000001] <TASK> [ +0.000002] ? __warn+0x80/0x130 [ +0.000003] ? check_flush_dependency+0x10b/0x120 [ +0.000002] ? report_bug+0x195/0x1a0 [ +0.000005] ? handle_bug+0x3c/0x70 [ +0.000003] ? exc_invalid_op+0x14/0x70 [ +0.000002] ? asm_exc_invalid_op+0x16/0x20 [ +0.000006] ? check_flush_dependency+0x10b/0x120 [ +0.000002] ? check_flush_dependency+0x10b/0x120 [ +0.000002] __flush_workqueue+0x126/0x3f0 [ +0.000015] ib_cache_cleanup_one+0x1c/0xe0 [ib_core] [ +0.000056] __ib_unregister_device+0x6a/0xb0 [ib_core] [ +0.000023] ib_unregister_device_and_put+0x34/0x50 [ib_core] [ +0.000020] i40iw_close+0x4b/0x90 [irdma] [ +0.000022] i40e_notify_client_of_netdev_close+0x54/0xc0 [i40e] [ +0.000035] i40e_service_task+0x126/0x190 [i40e] [ +0.000024] process_one_work+0x174/0x340 [ +0.000003] worker_thread+0x27e/0x390 [ +0.000001] ? __pfx_worker_thread+0x10/0x10 [ +0.000002] kthread+0xdf/0x110 [ +0.000002] ? __pfx_kthread+0x10/0x10 [ +0.000002] ret_from_fork+0x2d/0x50 [ +0.000003] ? __pfx_kthread+0x10/0x10 [ +0.000001] ret_from_fork_asm+0x1b/0x30 [ +0.000004] </TASK> [ +0.000001] ---[ end trace 0000000000000000 ]--- Fixes: 4d5957cbdecd ("i40e: remove WQ_UNBOUND and the task limit of our workqueue") Signed-off-by: Sindhu Devale <sindhu.devale@intel.com> Reviewed-by: Arkadiusz Kubalewski <arkadiusz.kubalewski@intel.com> Reviewed-by: Mateusz Polchlopek <mateusz.polchlopek@intel.com> Signed-off-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com> Tested-by: Robert Ganzynkowicz <robert.ganzynkowicz@intel.com> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com> Link: https://lore.kernel.org/r/20240423182723.740401-2-anthony.l.nguyen@intel.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-04-24net: intel: introduce {, Intel} Ethernet common libraryAlexander Lobakin
Not a secret there's a ton of code duplication between two and more Intel ethernet modules. Before introducing new changes, which would need to be copied over again, start decoupling the already existing duplicate functionality into a new module, which will be shared between several Intel Ethernet drivers. Add the lookup table which converts 8/10-bit hardware packet type into a parsed bitfield structure for easy checking packet format parameters, such as payload level, IP version, etc. This is currently used by i40e, ice and iavf and it's all the same in all three drivers. The only difference introduced in this implementation is that instead of defining a 256 (or 1024 in case of ice) element array, add unlikely() condition to limit the input to 154 (current maximum non-reserved packet type). There's no reason to waste 600 (or even 3600) bytes only to not hurt very unlikely exception packets. The hash computation function now takes payload level directly as a pkt_hash_type. There's a couple cases when non-IP ptypes are marked as L3 payload and in the previous versions their hash level would be 2, not 3. But skb_set_hash() only sees difference between L4 and non-L4, thus this won't change anything at all. The module is behind the hidden Kconfig symbol, which the drivers will select when needed. The exports are behind 'LIBIE' namespace to limit the scope of the functions. Not that non-HW-specific symbols will live in yet another module, libeth. This is done to easily distinguish pretty generic code ready for reusing by any other vendor and/or for moving the layer up from the code useful in Intel's 1-100G drivers only. Signed-off-by: Alexander Lobakin <aleksander.lobakin@intel.com> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2024-04-04Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netJakub Kicinski
Cross-merge networking fixes after downstream PR. Conflicts: net/ipv4/ip_gre.c 17af420545a7 ("erspan: make sure erspan_base_hdr is present in skb->head") 5832c4a77d69 ("ip_tunnel: convert __be16 tunnel flags to bitmaps") https://lore.kernel.org/all/20240402103253.3b54a1cf@canb.auug.org.au/ Adjacent changes: net/ipv6/ip6_fib.c d21d40605bca ("ipv6: Fix infinite recursion in fib6_dump_done().") 5fc68320c1fb ("ipv6: remove RTNL protection from inet6_dump_fib()") Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-04-01Merge branch '1GbE' of ↵Jakub Kicinski
git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/next-queue Tony Nguyen says: ==================== Intel Wired LAN Driver Updates 2024-03-29 (net: intel) This series contains updates to most Intel drivers. Jesse moves declaration of pci_driver struct to remove need for forward declarations in igb and converts Intel drivers to user newer power management ops. Sasha reworks power management flow on igc to avoid using rtnl_lock() during those flows. Maciej reorganizes i40e_nvm file to avoid forward declarations. * '1GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/next-queue: i40e: avoid forward declarations in i40e_nvm.c igc: Refactor runtime power management flow net: intel: implement modern PM ops declarations igb: simplify pci ops declaration ==================== Link: https://lore.kernel.org/r/20240329175632.211340-1-anthony.l.nguyen@intel.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-04-01i40e: Fix VF MAC filter removalIvan Vecera
Commit 73d9629e1c8c ("i40e: Do not allow untrusted VF to remove administratively set MAC") fixed an issue where untrusted VF was allowed to remove its own MAC address although this was assigned administratively from PF. Unfortunately the introduced check is wrong because it causes that MAC filters for other MAC addresses including multi-cast ones are not removed. <snip> if (ether_addr_equal(addr, vf->default_lan_addr.addr) && i40e_can_vf_change_mac(vf)) was_unimac_deleted = true; else continue; if (i40e_del_mac_filter(vsi, al->list[i].addr)) { ... </snip> The else path with `continue` effectively skips any MAC filter removal except one for primary MAC addr when VF is allowed to do so. Fix the check condition so the `continue` is only done for primary MAC address. Fixes: 73d9629e1c8c ("i40e: Do not allow untrusted VF to remove administratively set MAC") Signed-off-by: Ivan Vecera <ivecera@redhat.com> Reviewed-by: Michal Schmidt <mschmidt@redhat.com> Reviewed-by: Brett Creeley <brett.creeley@amd.com> Tested-by: Rafal Romanowski <rafal.romanowski@intel.com> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com> Link: https://lore.kernel.org/r/20240329180638.211412-1-anthony.l.nguyen@intel.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-03-29netlink: introduce type-checking attribute iterationJohannes Berg
There are, especially with multi-attr arrays, many cases of needing to iterate all attributes of a specific type in a netlink message or a nested attribute. Add specific macros to support that case. Also convert many instances using this spatch: @@ iterator nla_for_each_attr; iterator name nla_for_each_attr_type; identifier nla; expression head, len, rem; expression ATTR; type T; identifier x; @@ -nla_for_each_attr(nla, head, len, rem) +nla_for_each_attr_type(nla, ATTR, head, len, rem) { <... T x; ...> -if (nla_type(nla) == ATTR) { ... -} } @@ identifier nla; iterator nla_for_each_nested; iterator name nla_for_each_nested_type; expression attr, rem; expression ATTR; type T; identifier x; @@ -nla_for_each_nested(nla, attr, rem) +nla_for_each_nested_type(nla, ATTR, attr, rem) { <... T x; ...> -if (nla_type(nla) == ATTR) { ... -} } @@ iterator nla_for_each_attr; iterator name nla_for_each_attr_type; identifier nla; expression head, len, rem; expression ATTR; type T; identifier x; @@ -nla_for_each_attr(nla, head, len, rem) +nla_for_each_attr_type(nla, ATTR, head, len, rem) { <... T x; ...> -if (nla_type(nla) != ATTR) continue; ... } @@ identifier nla; iterator nla_for_each_nested; iterator name nla_for_each_nested_type; expression attr, rem; expression ATTR; type T; identifier x; @@ -nla_for_each_nested(nla, attr, rem) +nla_for_each_nested_type(nla, ATTR, attr, rem) { <... T x; ...> -if (nla_type(nla) != ATTR) continue; ... } Although I had to undo one bad change this made, and I also adjusted some other code for whitespace and to use direct variable initialization now. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Link: https://lore.kernel.org/r/20240328203144.b5a6c895fb80.I1869b44767379f204998ff44dd239803f39c23e0@changeid Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-03-29i40e: avoid forward declarations in i40e_nvm.cMaciej Fijalkowski
Move code around to get rid of forward declarations. No functional changes. After a plain code juggling, checkpatch reported: total: 0 errors, 7 warnings, 12 checks, 1581 lines checked so while at it let's address old issues as well. Should we ever address the remaining unnecessary forward declarations within drivers/net/ethernet/intel/, consider this change as a starting point/reference. As reported in [0], there would be a lot more of work to do...if we care. [0]: https://lore.kernel.org/intel-wired-lan/Zeh8qadiTGf413YU@boxer/T/#u Signed-off-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com> Tested-by: Pucha Himasekhar Reddy <himasekharx.reddy.pucha@intel.com> (A Contingent worker at Intel) Reviewed-by: Simon Horman <horms@kernel.org> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2024-03-29net: intel: implement modern PM ops declarationsJesse Brandeburg
Switch the Intel networking drivers to use the new power management ops declaration formats and macros, which allows us to drop __maybe_unused, as well as a bunch of ifdef checking CONFIG_PM. This is safe to do because the compiler drops the unused functions, verified by checking for any of the power management function symbols being present in System.map for a build without CONFIG_PM. If a driver has runtime PM, define the ops with pm_ptr(), and if the driver has Simple PM, use pm_sleep_ptr(), as well as the new versions of the macros for declaring the members of the pm_ops structs. Checked with network-enabled allnoconfig, allyesconfig, allmodconfig on x64_64. Reviewed-by: Alan Brady <alan.brady@intel.com> Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Reviewed-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com> Tested-by: Pucha Himasekhar Reddy <himasekharx.reddy.pucha@intel.com> (A Contingent worker at Intel) Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2024-03-28net: remove gfp_mask from napi_alloc_skb()Jakub Kicinski
__napi_alloc_skb() is napi_alloc_skb() with the added flexibility of choosing gfp_mask. This is a NAPI function, so GFP_ATOMIC is implied. The only practical choice the caller has is whether to set __GFP_NOWARN. But that's a false choice, too, allocation failures in atomic context will happen, and printing warnings in logs, effectively for a packet drop, is both too much and very likely non-actionable. This leads me to a conclusion that most uses of napi_alloc_skb() are simply misguided, and should use __GFP_NOWARN in the first place. We also have a "standard" way of reporting allocation failures via the queue stat API (qstats::rx-alloc-fail). The direct motivation for this patch is that one of the drivers used at Meta calls napi_alloc_skb() (so prior to this patch without __GFP_NOWARN), and the resulting OOM warning is the top networking warning in our fleet. Reviewed-by: Alexander Lobakin <aleksander.lobakin@intel.com> Reviewed-by: Simon Horman <horms@kernel.org> Reviewed-by: Eric Dumazet <edumazet@google.com> Link: https://lore.kernel.org/r/20240327040213.3153864-1-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-03-26i40e: fix vf may be used uninitialized in this function warningAleksandr Loktionov
To fix the regression introduced by commit 52424f974bc5, which causes servers hang in very hard to reproduce conditions with resets races. Using two sources for the information is the root cause. In this function before the fix bumping v didn't mean bumping vf pointer. But the code used this variables interchangeably, so stale vf could point to different/not intended vf. Remove redundant "v" variable and iterate via single VF pointer across whole function instead to guarantee VF pointer validity. Fixes: 52424f974bc5 ("i40e: Fix VF hang when reset is triggered on another VF") Signed-off-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com> Reviewed-by: Arkadiusz Kubalewski <arkadiusz.kubalewski@intel.com> Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com> Reviewed-by: Paul Menzel <pmenzel@molgen.mpg.de> Tested-by: Rafal Romanowski <rafal.romanowski@intel.com> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2024-03-26i40e: fix i40e_count_filters() to count only active/new filtersAleksandr Loktionov
The bug usually affects untrusted VFs, because they are limited to 18 MACs, it affects them badly, not letting to create MAC all filters. Not stable to reproduce, it happens when VF user creates MAC filters when other MACVLAN operations are happened in parallel. But consequence is that VF can't receive desired traffic. Fix counter to be bumped only for new or active filters. Fixes: 621650cabee5 ("i40e: Refactoring VF MAC filters counting to make more reliable") Signed-off-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com> Reviewed-by: Arkadiusz Kubalewski <arkadiusz.kubalewski@intel.com> Reviewed-by: Paul Menzel <pmenzel@molgen.mpg.de> Tested-by: Rafal Romanowski <rafal.romanowski@intel.com> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2024-03-26i40e: Enforce software interrupt during busy-poll exitIvan Vecera
As for ice bug fixed by commit b7306b42beaf ("ice: manage interrupts during poll exit") followed by commit 23be7075b318 ("ice: fix software generating extra interrupts") I'm seeing the similar issue also with i40e driver. In certain situation when busy-loop is enabled together with adaptive coalescing, the driver occasionally misses that there are outstanding descriptors to clean when exiting busy poll. Try to catch the remaining work by triggering a software interrupt when exiting busy poll. No extra interrupts will be generated when busy polling is not used. The issue was found when running sockperf ping-pong tcp test with adaptive coalescing and busy poll enabled (50 as value busy_pool and busy_read sysctl knobs) and results in huge latency spikes with more than 100000us. The fix is inspired from the ice driver and do the following: 1) During napi poll exit in case of busy-poll (napo_complete_done() returns false) this is recorded to q_vector that we were in busy loop. 2) Extends i40e_buildreg_itr() to be able to add an enforced software interrupt into built value 2) In i40e_update_enable_itr() enforces a software interrupt trigger if we are exiting busy poll to catch any pending clean-ups 3) Reuses unused 3rd ITR (interrupt throttle) index and set it to 20K interrupts per second to limit the number of these sw interrupts. Test results ============ Prior: [root@dell-per640-07 net]# sockperf ping-pong -i 10.9.9.1 --tcp -m 1000 --mps=max -t 120 sockperf: == version #3.10-no.git == sockperf[CLIENT] send on:sockperf: using recvfrom() to block on socket(s) [ 0] IP = 10.9.9.1 PORT = 11111 # TCP sockperf: Warmup stage (sending a few dummy messages)... sockperf: Starting test... sockperf: Test end (interrupted by timer) sockperf: Test ended sockperf: [Total Run] RunTime=119.999 sec; Warm up time=400 msec; SentMessages=2438563; ReceivedMessages=2438562 sockperf: ========= Printing statistics for Server No: 0 sockperf: [Valid Duration] RunTime=119.549 sec; SentMessages=2429473; ReceivedMessages=2429473 sockperf: ====> avg-latency=24.571 (std-dev=93.297, mean-ad=4.904, median-ad=1.510, siqr=1.063, cv=3.797, std-error=0.060, 99.0% ci=[24.417, 24.725]) sockperf: # dropped messages = 0; # duplicated messages = 0; # out-of-order messages = 0 sockperf: Summary: Latency is 24.571 usec sockperf: Total 2429473 observations; each percentile contains 24294.73 observations sockperf: ---> <MAX> observation = 103294.331 sockperf: ---> percentile 99.999 = 45.633 sockperf: ---> percentile 99.990 = 37.013 sockperf: ---> percentile 99.900 = 35.910 sockperf: ---> percentile 99.000 = 33.390 sockperf: ---> percentile 90.000 = 28.626 sockperf: ---> percentile 75.000 = 27.741 sockperf: ---> percentile 50.000 = 26.743 sockperf: ---> percentile 25.000 = 25.614 sockperf: ---> <MIN> observation = 12.220 After: [root@dell-per640-07 net]# sockperf ping-pong -i 10.9.9.1 --tcp -m 1000 --mps=max -t 120 sockperf: == version #3.10-no.git == sockperf[CLIENT] send on:sockperf: using recvfrom() to block on socket(s) [ 0] IP = 10.9.9.1 PORT = 11111 # TCP sockperf: Warmup stage (sending a few dummy messages)... sockperf: Starting test... sockperf: Test end (interrupted by timer) sockperf: Test ended sockperf: [Total Run] RunTime=119.999 sec; Warm up time=400 msec; SentMessages=2400055; ReceivedMessages=2400054 sockperf: ========= Printing statistics for Server No: 0 sockperf: [Valid Duration] RunTime=119.549 sec; SentMessages=2391186; ReceivedMessages=2391186 sockperf: ====> avg-latency=24.965 (std-dev=5.934, mean-ad=4.642, median-ad=1.485, siqr=1.067, cv=0.238, std-error=0.004, 99.0% ci=[24.955, 24.975]) sockperf: # dropped messages = 0; # duplicated messages = 0; # out-of-order messages = 0 sockperf: Summary: Latency is 24.965 usec sockperf: Total 2391186 observations; each percentile contains 23911.86 observations sockperf: ---> <MAX> observation = 195.841 sockperf: ---> percentile 99.999 = 45.026 sockperf: ---> percentile 99.990 = 39.009 sockperf: ---> percentile 99.900 = 35.922 sockperf: ---> percentile 99.000 = 33.482 sockperf: ---> percentile 90.000 = 28.902 sockperf: ---> percentile 75.000 = 27.821 sockperf: ---> percentile 50.000 = 26.860 sockperf: ---> percentile 25.000 = 25.685 sockperf: ---> <MIN> observation = 12.277 Fixes: 0bcd952feec7 ("ethernet/intel: consolidate NAPI and NAPI exit") Reported-by: Hugo Ferreira <hferreir@redhat.com> Reviewed-by: Michal Schmidt <mschmidt@redhat.com> Signed-off-by: Ivan Vecera <ivecera@redhat.com> Reviewed-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Tested-by: Pucha Himasekhar Reddy <himasekharx.reddy.pucha@intel.com> (A Contingent worker at Intel) Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2024-03-08Merge branch '40GbE' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/next-queue Tony Nguyen says: ==================== Intel Wired LAN Driver Updates 2024-03-06 (iavf, i40e, ixgbe) This series contains updates to iavf, i40e, and ixgbe drivers. Alexey Kodanev removes duplicate calls related to cloud filters on iavf and unnecessary null checks on i40e. Maciej adds helper functions for common code relating to updating statistics for ixgbe. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2024-03-07Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netJakub Kicinski
Cross-merge networking fixes after downstream PR. No conflicts. Adjacent changes: net/core/page_pool_user.c 0b11b1c5c320 ("netdev: let netlink core handle -EMSGSIZE errors") 429679dcf7d9 ("page_pool: fix netlink dump stop/resume") Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-03-06i40e: remove unnecessary qv_info ptr NULL checksAlexey Kodanev
The "qv_info" ptr cannot be NULL when it gets the address of an element of the flexible array "qvlist_info->qv_info". Detected using the static analysis tool - Svace. Signed-off-by: Alexey Kodanev <aleksei.kodanev@bell-sw.com> Tested-by: Pucha Himasekhar Reddy <himasekharx.reddy.pucha@intel.com> (A Contingent worker at Intel) Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>