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path: root/drivers/net/ethernet/intel/igc/igc_ethtool.c
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2022-10-28net: Remove the obsolte u64_stats_fetch_*_irq() users (drivers).Thomas Gleixner1-6/+6
Now that the 32bit UP oddity is gone and 32bit uses always a sequence count, there is no need for the fetch_irq() variants anymore. Convert to the regular interface. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-11-22ethtool: extend ringparam setting/getting API with rx_buf_lenHao Chen1-4/+10
Add two new parameters kernel_ringparam and extack for .get_ringparam and .set_ringparam to extend more ring params through netlink. Signed-off-by: Hao Chen <chenhao288@hisilicon.com> Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-08-24ethtool: extend coalesce setting uAPI with CQE modeYufeng Mo1-2/+6
In order to support more coalesce parameters through netlink, add two new parameter kernel_coal and extack for .set_coalesce and .get_coalesce, then some extra info can return to user with the netlink API. Signed-off-by: Yufeng Mo <moyufeng@huawei.com> Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-07-16igc: Make flex filter more flexibleKurt Kanzenbach1-11/+16
Currently flex filters are only used for filters containing user data. However, it makes sense to utilize them also for filters having multiple conditions, because that's not supported by the driver at the moment. Add it. Signed-off-by: Kurt Kanzenbach <kurt@linutronix.de> Reviewed-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Vinicius Costa Gomes <vinicius.gomes@intel.com> Tested-by: Dvora Fuxbrumer <dvorax.fuxbrumer@linux.intel.com> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2021-07-16igc: Allow for Flex Filters to be installedVinicius Costa Gomes1-6/+0
Allows Flex Filters to be installed. The previous restriction to the types of filters that can be installed can now be lifted. Signed-off-by: Vinicius Costa Gomes <vinicius.gomes@intel.com> Tested-by: Dvora Fuxbrumer <dvorax.fuxbrumer@linux.intel.com> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2021-07-16igc: Integrate flex filter into ethtool opsKurt Kanzenbach1-0/+20
Use the flex filter mechanism to extend the current ethtool filter operations by intercoperating the user data. This allows to match eight more bytes within a Ethernet frame in addition to macs, ether types and vlan. The matching pattern looks like this: * dest_mac [6] * src_mac [6] * tpid [2] * vlan tci [2] * ether type [2] * user data [8] This can be used to match Profinet traffic classes by FrameID range. Signed-off-by: Kurt Kanzenbach <kurt@linutronix.de> Reviewed-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Tested-by: Dvora Fuxbrumer <dvorax.fuxbrumer@linux.intel.com> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2021-06-04igc: Update driver to use ethtool_sprintfSasha Neftin1-26/+13
Complete to commit c8d4725e985d ("intel: Update drivers to use ethtool_sprintf") Update the igc driver to make use of ethtool_sprintf. The general idea is to reduce code size and overhead by replacing the repeated pattern of string printf statements and ETH_STRING_LEN counter increments. Suggested-by: Alexander Duyck <alexanderduyck@fb.com> Signed-off-by: Sasha Neftin <sasha.neftin@intel.com> Tested-by: Dvora Fuxbrumer <dvorax.fuxbrumer@linux.intel.com> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2021-05-26intel: remove checker warningJesse Brandeburg1-1/+1
The sparse checker (C=2) found an assignment where we were mixing types when trying to convert from data read directly from the device NVM, to an array in CPU order in-memory, which unfortunately the driver tries to do in-place. This is easily solved by using the swap operation instead of an assignment, and is already proven in other Intel drivers to be functionally correct and the same code, just without a sparse warning. The change is the same in all three drivers. Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Tested-by: Dave Switzer <david.switzer@intel.com> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2021-04-16igc: Expose LPI countersSasha Neftin1-0/+2
Expose EEE Tx and Rx low power idle counters via ethtool A EEE TX or RX LPI event occurs when the transmitter or the receiver enters EEE (IEEE802.3az) LPI state. ethtool --statistics <iface> Signed-off-by: Sasha Neftin <sasha.neftin@intel.com> Tested-by: Dvora Fuxbrumer <dvorax.fuxbrumer@linux.intel.com> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2021-03-11igc: Fix Supported Pause Frame Link SettingMuhammad Husaini Zulkifli1-0/+3
The Supported Pause Frame always display "No" even though the Advertised pause frame showing the correct setting based on the pause parameters via ethtool. Set bit in link_ksettings to "Supported" for Pause Frame. Before output: Supported pause frame use: No Expected output: Supported pause frame use: Symmetric Fixes: 8c5ad0dae93c ("igc: Add ethtool support") Signed-off-by: Muhammad Husaini Zulkifli <muhammad.husaini.zulkifli@intel.com> Reviewed-by: Malli C <mallikarjuna.chilakala@intel.com> Tested-by: Dvora Fuxbrumer <dvorax.fuxbrumer@linux.intel.com> Acked-by: Sasha Neftin <sasha.neftin@intel.com> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2021-03-11igc: Fix Pause Frame AdvertisingMuhammad Husaini Zulkifli1-3/+1
Fix Pause Frame Advertising when getting the advertisement via ethtool. Remove setting the "advertising" bit in link_ksettings during default case when Tx and Rx are in off state with Auto Negotiate off. Below is the original output of advertisement link during Tx and Rx off: Advertised pause frame use: Symmetric Receive-only Expected output: Advertised pause frame use: No Fixes: 8c5ad0dae93c ("igc: Add ethtool support") Signed-off-by: Muhammad Husaini Zulkifli <muhammad.husaini.zulkifli@intel.com> Reviewed-by: Malli C <mallikarjuna.chilakala@intel.com> Acked-by: Sasha Neftin <sasha.neftin@intel.com> Tested-by: Dvora Fuxbrumer <dvorax.fuxbrumer@linux.intel.com> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2021-02-03igc: Prefer strscpy over strlcpySasha Neftin1-1/+1
Use the strscpy method instead of strlcpy method. See: https://lore.kernel.org/r/CAHk-=wgfRnXz0W3D37d01q3JFkr _i_uTL=V6A6G1oUZcprmknw@mail.gmail.com/ Signed-off-by: Sasha Neftin <sasha.neftin@intel.com> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2021-02-03igc: Expose the gPHY firmware versionSasha Neftin1-2/+7
Extend reporting of NVM image version to include the gPHY (i225 PHY) firmware version. Signed-off-by: Sasha Neftin <sasha.neftin@intel.com> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2021-02-03igc: Expose the NVM versionSasha Neftin1-2/+14
Expose the NVM map version via drvinfo in ethtool NVM image version is reported as firmware version for i225 device Minor typo fix - remove space Signed-off-by: Sasha Neftin <sasha.neftin@intel.com> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2021-02-03igc: Remove igc_set_fw_version commentSasha Neftin1-1/+0
i225 device not supported and do not plan to support configuration of fw version string for ethtool Signed-off-by: Sasha Neftin <sasha.neftin@intel.com> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2021-02-01igc: Report speed and duplex as unknown when device is runtime suspendedKai-Heng Feng1-1/+2
Similar to commit 165ae7a8feb5 ("igb: Report speed and duplex as unknown when device is runtime suspended"), if we try to read speed and duplex sysfs while the device is runtime suspended, igc will complain and stops working: [ 123.449883] igc 0000:03:00.0 enp3s0: PCIe link lost, device now detached [ 123.450052] BUG: kernel NULL pointer dereference, address: 0000000000000008 [ 123.450056] #PF: supervisor read access in kernel mode [ 123.450058] #PF: error_code(0x0000) - not-present page [ 123.450059] PGD 0 P4D 0 [ 123.450064] Oops: 0000 [#1] SMP NOPTI [ 123.450068] CPU: 0 PID: 2525 Comm: udevadm Tainted: G U W OE 5.10.0-1002-oem #2+rkl2-Ubuntu [ 123.450078] RIP: 0010:igc_rd32+0x1c/0x90 [igc] [ 123.450080] Code: c0 5d c3 b8 fd ff ff ff c3 0f 1f 44 00 00 0f 1f 44 00 00 55 89 f0 48 89 e5 41 56 41 55 41 54 49 89 c4 53 48 8b 57 08 48 01 d0 <44> 8b 28 41 83 fd ff 74 0c 5b 44 89 e8 41 5c 41 5d 4 [ 123.450083] RSP: 0018:ffffb0d100d6fcc0 EFLAGS: 00010202 [ 123.450085] RAX: 0000000000000008 RBX: ffffb0d100d6fd30 RCX: 0000000000000000 [ 123.450087] RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffff945a12716c10 [ 123.450089] RBP: ffffb0d100d6fce0 R08: ffff945a12716550 R09: ffff945a09874000 [ 123.450090] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000008 [ 123.450092] R13: ffff945a12716000 R14: ffff945a037da280 R15: ffff945a037da290 [ 123.450094] FS: 00007f3b34c868c0(0000) GS:ffff945b89200000(0000) knlGS:0000000000000000 [ 123.450096] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 123.450098] CR2: 0000000000000008 CR3: 00000001144de006 CR4: 0000000000770ef0 [ 123.450100] PKRU: 55555554 [ 123.450101] Call Trace: [ 123.450111] igc_ethtool_get_link_ksettings+0xd6/0x1b0 [igc] [ 123.450118] __ethtool_get_link_ksettings+0x71/0xb0 [ 123.450123] duplex_show+0x74/0xc0 [ 123.450129] dev_attr_show+0x1d/0x40 [ 123.450134] sysfs_kf_seq_show+0xa1/0x100 [ 123.450137] kernfs_seq_show+0x27/0x30 [ 123.450142] seq_read+0xb7/0x400 [ 123.450148] ? common_file_perm+0x72/0x170 [ 123.450151] kernfs_fop_read+0x35/0x1b0 [ 123.450155] vfs_read+0xb5/0x1b0 [ 123.450157] ksys_read+0x67/0xe0 [ 123.450160] __x64_sys_read+0x1a/0x20 [ 123.450164] do_syscall_64+0x38/0x90 [ 123.450168] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 123.450170] RIP: 0033:0x7f3b351fe142 [ 123.450173] Code: c0 e9 c2 fe ff ff 50 48 8d 3d 3a ca 0a 00 e8 f5 19 02 00 0f 1f 44 00 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 0f 05 <48> 3d 00 f0 ff ff 77 56 c3 0f 1f 44 00 00 48 83 ec 28 48 89 54 24 [ 123.450174] RSP: 002b:00007fffef2ec138 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 [ 123.450177] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f3b351fe142 [ 123.450179] RDX: 0000000000001001 RSI: 00005644c047f070 RDI: 0000000000000003 [ 123.450180] RBP: 00007fffef2ec340 R08: 00005644c047f070 R09: 00007f3b352d9320 [ 123.450182] R10: 00005644c047c010 R11: 0000000000000246 R12: 00005644c047cbf0 [ 123.450184] R13: 00005644c047e6d0 R14: 0000000000000003 R15: 00007fffef2ec140 [ 123.450189] Modules linked in: rfcomm ccm cmac algif_hash algif_skcipher af_alg bnep toshiba_acpi industrialio toshiba_haps hp_accel lis3lv02d btusb btrtl btbcm btintel bluetooth ecdh_generic ecc joydev input_leds nls_iso8859_1 snd_sof_pci snd_sof_intel_byt snd_sof_intel_ipc snd_sof_intel_hda_common snd_soc_hdac_hda snd_hda_codec_hdmi snd_sof_xtensa_dsp snd_sof_intel_hda snd_sof snd_hda_ext_core snd_soc_acpi_intel_match snd_soc_acpi snd_hda_codec_realtek snd_hda_codec_generic ledtrig_audio snd_hda_intel snd_intel_dspcfg soundwire_intel soundwire_generic_allocation soundwire_cadence snd_hda_codec snd_hda_core ath10k_pci snd_hwdep intel_rapl_msr intel_rapl_common ath10k_core soundwire_bus snd_soc_core x86_pkg_temp_thermal ath intel_powerclamp snd_compress ac97_bus snd_pcm_dmaengine mac80211 snd_pcm coretemp snd_seq_midi snd_seq_midi_event snd_rawmidi kvm_intel cfg80211 snd_seq snd_seq_device snd_timer mei_hdcp kvm libarc4 snd crct10dif_pclmul ghash_clmulni_intel aesni_intel mei_me dell_wmi [ 123.450266] dell_smbios soundcore sparse_keymap dcdbas crypto_simd cryptd mei dell_uart_backlight glue_helper ee1004 wmi_bmof intel_wmi_thunderbolt dell_wmi_descriptor mac_hid efi_pstore acpi_pad acpi_tad intel_cstate sch_fq_codel parport_pc ppdev lp parport ip_tables x_tables autofs4 btrfs blake2b_generic raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq libcrc32c raid1 raid0 multipath linear dm_mirror dm_region_hash dm_log hid_generic usbhid hid i915 i2c_algo_bit drm_kms_helper syscopyarea sysfillrect sysimgblt fb_sys_fops cec crc32_pclmul rc_core drm intel_lpss_pci i2c_i801 ahci igc intel_lpss i2c_smbus idma64 xhci_pci libahci virt_dma xhci_pci_renesas wmi video pinctrl_tigerlake [ 123.450335] CR2: 0000000000000008 [ 123.450338] ---[ end trace 9f731e38b53c35cc ]--- The more generic approach will be wrap get_link_ksettings() with begin() and complete() callbacks, and calls runtime resume and runtime suspend routine respectively. However, igc is like igb, runtime resume routine uses rtnl_lock() which upper ethtool layer also uses. So to prevent a deadlock on rtnl, take a different approach, use pm_runtime_suspended() to avoid reading register while device is runtime suspended. Fixes: 8c5ad0dae93c ("igc: Add ethtool support") Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com> Acked-by: Sasha Neftin <sasha.neftin@intel.com> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2021-01-26igc: fix link speed advertisingCorinna Vinschen1-6/+18
Link speed advertising in igc has two problems: - When setting the advertisement via ethtool, the link speed is converted to the legacy 32 bit representation for the intel PHY code. This inadvertently drops ETHTOOL_LINK_MODE_2500baseT_Full_BIT (being beyond bit 31). As a result, any call to `ethtool -s ...' drops the 2500Mbit/s link speed from the PHY settings. Only reloading the driver alleviates that problem. Fix this by converting the ETHTOOL_LINK_MODE_2500baseT_Full_BIT to the Intel PHY ADVERTISE_2500_FULL bit explicitly. - Rather than checking the actual PHY setting, the .get_link_ksettings function always fills link_modes.advertising with all link speeds the device is capable of. Fix this by checking the PHY autoneg_advertised settings and report only the actually advertised speeds up to ethtool. Fixes: 8c5ad0dae93c ("igc: Add ethtool support") Signed-off-by: Corinna Vinschen <vinschen@redhat.com> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2020-09-28igc: Expose LPI countersSasha Neftin1-0/+3
Completion to commit 900d1e8b346b ("igc: Add LPI counters") LPI counters exposed by statistics update method. A EEE TX LPI counter reflect the transmitter entries EEE (IEEE 802.3az) into the LPI state. A EEE RX LPI counter reflect the receiver link partner entries into EEE(IEEE 802.3az) LPI state. Signed-off-by: Sasha Neftin <sasha.neftin@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2020-07-01ethernet/intel: Convert fallthrough code commentsJeff Kirsher1-12/+4
Convert all the remaining 'fall through" code comments to the newer 'fallthrough;' keyword. Suggested-by: Joe Perches <joe@perches.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2020-06-29igc: Add initial EEE supportSasha Neftin1-0/+95
IEEE802.3az-2010 Energy Efficient Ethernet has been approved as standard (September 2010) and the driver can enable and disable it via ethtool. Disable the feature by default on parts which support it. Add enable/disable eee options. tx-lpi, tx-timer and advertise not supported yet. Signed-off-by: Sasha Neftin <sasha.neftin@intel.com> Reviewed-by: Andre Guedes <andre.guedes@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2020-06-25net/intel: remove driver versions from Intel driversJeff Kirsher1-1/+0
As with other networking drivers, remove the unnecessary driver version from the Intel drivers. The ethtool driver information and module version will then report the kernel version instead. For ixgbe, i40e and ice drivers, the driver passes the driver version to the firmware to confirm that we are up and running. So we now pass the value of UTS_RELEASE to the firmware. This adminq call is required per the HAS document. The Device then sends an indication to the BMC that the PF driver is present. This is done using Host NC Driver Status Indication in NC-SI Get Link command or via the Host Network Controller Driver Status Change AEN. What the BMC may do with this information is implementation-dependent, but this is a standard NC-SI 1.1 command we honor per the HAS. CC: Bruce Allan <bruce.w.allan@intel.com> CC: Jesse Brandeburg <jesse.brandeburg@intel.com> CC: Alek Loktionov <aleksandr.loktionov@intel.com> CC: Kevin Liedtke <kevin.d.liedtke@intel.com> CC: Aaron Rowden <aaron.f.rowden@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Co-developed-by: Jacob Keller <jacob.e.keller@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com>
2020-05-28igc: Reject NFC rules with multiple matchesAndre Guedes1-5/+4
The way Rx queue assignment based on mac address, Ethertype and VLAN priority filtering operates in I225 doesn't allow us to properly support NFC rules with multiple matches. Consider the following example which assigns to queue 2 frames matching the address MACADDR *and* Ethertype ETYPE. $ ethtool -N eth0 flow-type ether dst <MACADDR> proto <ETYPE> queue 2 When such rule is applied, we have 2 unwanted behaviors: 1) Any frame matching MACADDR will be assigned to queue 2. It doesn't matter the ETYPE value. 2) Any accepted frame that has Ethertype equals to ETYPE, no matter the mac address, will be assigned to queue 2 as well. In current code, multiple-match filters are accepted by the driver, even though it doesn't support them properly. This patch adds a check for multiple-match rules in igc_ethtool_is_nfc_rule_valid() so they are rejected. Signed-off-by: Andre Guedes <andre.guedes@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2020-05-22igc: Change adapter->nfc_rule_lock to mutexAndre Guedes1-12/+12
This patch changes adapter->nfc_rule_lock type from spin_lock to mutex so we avoid unnecessary busy waiting on lock contention. A closer look at the execution context of NFC rule API users shows that all of them run in process context. The API users are: ethtool ops, igc_configure(), called when interface is brought up by user or reset workequeue thread, igc_down(), called when interface is brought down, and igc_remove(), called when driver is unloaded. Signed-off-by: Andre Guedes <andre.guedes@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2020-05-22igc: Fix NFC rule validationAndre Guedes1-3/+4
If we try to overwrite an existing rule with the same filter but different action, we get EEXIST error as shown below. $ ethtool -N eth0 flow-type ether dst <MACADDR> action 1 loc 10 $ ethtool -N eth0 flow-type ether dst <MACADDR> action 2 loc 10 rmgr: Cannot insert RX class rule: File exists The second command is expected to overwrite the previous rule in location 10 and succeed. This patch fixes igc_ethtool_check_nfc_rule() so it also checks the rules location. In case they match, the rule under evaluation should not be considered invalid. Signed-off-by: Andre Guedes <andre.guedes@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2020-05-22igc: Refactor igc_ethtool_update_nfc_rule()Andre Guedes1-119/+19
Current implementation of igc_ethtool_update_nfc_rule() is a bit convoluted since it handles too many things: rule lookup, deletion and addition. This patch breaks it into three functions so we simplify the code and improve code reuse. Code related to rule lookup is refactored out to a new function called igc_get_nfc_rule(). Code related to rule addition is refactored out to a new function called igc_add_nfc_rule(). This function enables the rule in hardware and adds it to the adapter's list. Code related to rule deletion is refactored out to a new function called igc_del_nfc_rule(). This function disables the rule in hardware, removes it from adapter's list, and deletes it. As a byproduct of this refactoring, igc_enable_nfc_rule() and igc_disable_nfc_rule() are moved to igc_main.c since they are not used in igc_ethtool.c anymore, and igc_restore_nfc_rules() and igc_nfc_rule_ exit() are moved around to avoid forward declaration. Also, since this patch already touches igc_ethtool_get_nfc_rule(), it takes the opportunity to remove the 'match_flags' check. Empty flags are not allowed to be added so no need to check that. Signed-off-by: Andre Guedes <andre.guedes@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2020-05-22igc: Fix NFC rules restorationAndre Guedes1-11/+8
When network interface is brought up, the driver re-enables the NFC rules previously configured. However, this is done in reverse order the rules were added and hardware filters are configured differently. For example, consider the following rules: $ ethtool -N eth0 flow-type ether dst 00:00:00:00:00:AA queue 0 $ ethtool -N eth0 flow-type ether dst 00:00:00:00:00:BB queue 1 $ ethtool -N eth0 flow-type ether dst 00:00:00:00:00:CC queue 2 $ ethtool -N eth0 flow-type ether dst 00:00:00:00:00:DD queue 3 RAL/RAH registers are configure so filter index 1 has address ending with AA, filter index 2 has address ending in BB, and so on. If we bring the interface down and up again, RAL/RAH registers are configured so filter index 1 has address ending in DD, filter index 2 has CC, and so on. IOW, in reverse order we had before bringing the interface down. This issue can be fixed by traversing adapter->nfc_rule_list in backwards when restoring the rules. Since hlist doesn't support backwards traversal, this patch replaces it by list_head and fixes igc_restore_nfc_rules() accordingly. Signed-off-by: Andre Guedes <andre.guedes@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2020-05-22igc: Fix NFC rule overwrite casesAndre Guedes1-2/+1
When the 'loc' argument is passed in ethtool, the input rule overwrites any rule present in that location. In this situation we must disable the old rule otherwise it is left enabled in hardware. This patch fixes the issue by always calling igc_disable_nfc_rule() when deleting the old rule, no matter the value of 'input' argument. Signed-off-by: Andre Guedes <andre.guedes@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2020-05-22igc: Fix locking issue when retrieving NFC rulesAndre Guedes1-3/+16
Access to NFC rules stored in adapter->nfc_rule_list is protect by adapter->nfc_rule_lock. The functions igc_ethtool_get_nfc_rule() and igc_ethtool_get_nfc_rules() are missing to hold the lock while accessing rule objects. Signed-off-by: Andre Guedes <andre.guedes@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2020-05-22igc: Fix 'sw_idx' type in struct igc_nfc_ruleAndre Guedes1-8/+8
The 'sw_idx' field from 'struct igc_nfc_rule' is u16 type but it is assigned an u32 value in igc_ethtool_init_nfc_rule(). This patch changes 'sw_idx' type to u32 so they match. Also, it makes more sense to call this field 'location' since it holds the NFC rule location. Signed-off-by: Andre Guedes <andre.guedes@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2020-05-22igc: Refactor igc_ethtool_add_nfc_rule()Andre Guedes1-58/+92
Current implementation of igc_ethtool_add_nfc_rule() is quite long and a bit convoluted so this patch does a code refactoring to improve the code. Code related to NFC rule object initialization is refactored out to the local helper function igc_ethtool_init_nfc_rule(). Likewise, code related to NFC rule validation is refactored out to another local helper, igc_ethtool_is_nfc_rule_valid(). RX_CLS_FLOW_DISC check is removed since it is redundant. The macro is defined as the max value fsp->ring_cookie can have, so checking if fsp->ring_cookie >= adapter->num_rx_queues is already sufficient. Finally, some log messages are improved or added, and obvious comments are removed. Signed-off-by: Andre Guedes <andre.guedes@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2020-05-21igc: Change byte order in struct igc_nfc_filterAndre Guedes1-14/+11
Every time we access the 'etype' and 'vlan_tci' fields from struct igc_nfc_filter to enable or disable filters in hardware we have to convert them from big endian to host order so it makes more sense to simply have these fields in host order. The byte order conversion should take place in igc_ethtool_get_nfc_ rule() and igc_ethtool_add_nfc_rule(), which are called by .get_rxnfc and .set_rxnfc ethtool ops, since ethtool subsystem is the one who deals with them in big endian order. Signed-off-by: Andre Guedes <andre.guedes@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2020-05-21igc: Align terms used in NFC support codeAndre Guedes1-81/+79
The Network Flow Classification (NFC) support code from IGC driver uses terms such as 'rule', 'filter', 'entry', 'input' interchangeably when referring to NFC rules, making it harder to follow the code. This patch renames IGC's internal APIs, structs, and variables so we stick with the term 'rule' since this is the term used in ethtool APIs. It also removes some not applicable comments along the way. No functionality is changed by this patch. Signed-off-by: Andre Guedes <andre.guedes@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2020-05-21igc: Add 'igc_ethtool_' prefix to functions in igc_ethtool.cAndre Guedes1-105/+110
This patch adds the prefix 'igc_ethtool_' to all functions defined in igc_ethtool.c so they align with the name convention already followed by other parts of the driver (e.g. igc_tsn, igc_ptp). Also, this avoids some name clashing with functions added to igc_main.c by upcoming patches in this series. No functionality is changed by this patch, just function renaming. Signed-off-by: Andre Guedes <andre.guedes@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2020-05-21igc: Early return in igc_get_ethtool_nfc_entry()Andre Guedes1-30/+28
This patch re-writes the second half of igc_ethtool_get_nfc_entry() to follow the 'return early' pattern seen in other parts of the driver and removes some duplicate comments. Signed-off-by: Andre Guedes <andre.guedes@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2020-05-21igc: Cleanup _get|set_rxnfc ethtool opsAndre Guedes1-23/+10
This patch does a trivial change in igc_ethtool_get_rxnfc() and igc_ethtool_set_rxnfc() to simplify their logic. Signed-off-by: Andre Guedes <andre.guedes@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2020-05-21igc: Get rid of igc_max_channels()Andre Guedes1-7/+2
The local function igc_max_channels() is a pointless wrapper around igc_get_max_rss_queues(). This patch removes it and updates the callers accordingly. It also does some cleanup on igc_get_max_rss_queues(). Signed-off-by: Andre Guedes <andre.guedes@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2020-05-21igc: Enable NFC rules based source MAC addressAndre Guedes1-10/+22
This patch adds support for Network Flow Classification (NFC) rules based on source MAC address. Note that the controller doesn't support rules with both source and destination addresses set, so this special case is checked in igc_add_ethtool_nfc_entry(). Signed-off-by: Andre Guedes <andre.guedes@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2020-05-21igc: Add support for source address filters in coreAndre Guedes1-2/+4
This patch extends MAC address filter internal APIs igc_add_mac_filter() and igc_del_mac_filter(), as well as local helpers, to support filters based on source address. A new parameters 'type' is added to the APIs to indicate if the filter type is source or destination. In case it is source type, the RAH register is configured accordingly in igc_set_mac_filter_hw(). Signed-off-by: Andre Guedes <andre.guedes@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2020-05-20igc: Remove IGC_MAC_STATE_SRC_ADDR flagAndre Guedes1-14/+2
MAC address filters based on source address are not currently supported by the IGC driver. Despite of that, the driver have some dangling code to handle it, inherited from IGB driver. This patch removes that code to prepare for a follow up patch that adds proper source MAC address filter support. Signed-off-by: Andre Guedes <andre.guedes@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2020-05-19igc: Dump ETQF registersAndre Guedes1-0/+3
This patch adds the EType Queue Filter (ETQF) registers to the list of registers dumped by igc_get_regs(). Signed-off-by: Andre Guedes <andre.guedes@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2020-05-19igc: Refactor ethertype filtering codeAndre Guedes1-59/+8
The whole ethertype filtering code is implemented in igc_ethtool.c and mixes logic from ethtool and core parts. This patch refactors it so core logic is moved to igc_main.c, aligning the ethertype filtering code organization with the rest of the filtering code from the driver (MAC address and VLAN priority). Besides moving code to igc_main.c, this patch also does some minor improvements to the code. Below are some highlights. In case all filters are already in use and the user tries to add another filter, we return -ENOSPC instead of -EINVAL so a more meaningful error code is provided. This also aligns with the behavior implemented in MAC address filtering code. With this code refactoring, 'etype_bitmap' array in struct igc_adapter and 'etype_reg_index' in struct igc_nfc_filter are not needed anymore and are removed. Log messages are added to help debugging the ethertype filtering code. Signed-off-by: Andre Guedes <andre.guedes@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2020-05-19igc: Refactor VLAN priority filtering codeAndre Guedes1-51/+13
The whole VLAN priority filtering code is implemented in igc_ethtool.c and mixes logic from ethtool and core parts. This patch refactors it so core logic is moved to igc_main.c, aligning the VLAN priority filtering code organization with the MAC address filtering code. This patch also takes the opportunity to add some log messages to ease debugging. Signed-off-by: Andre Guedes <andre.guedes@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2020-05-19igc: Return -EOPNOTSUPP when VLAN mask doesn't matchAndre Guedes1-1/+2
The I225 controller supports Rx queue assignment based on VLAN priority only. Other Tag Control Information (TCI) are valid, but not supported by the driver. So this patch changes the returning code from igc_add_ ethtool_nfc_entry() to -EOPNOTSUPP in order to provide more meaningful information on why the function failed. It also adds a debug messages to give the user a hint about what went wrong with the NFC setup. Signed-off-by: Andre Guedes <andre.guedes@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2020-05-19igc: Dump VLANPQF registerAndre Guedes1-0/+2
This patch adds the VLAN Priority Queue Filter Register (VLANPQF) to the list of registers dumped by igc_get_regs(). Signed-off-by: Andre Guedes <andre.guedes@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2020-05-19igc: Rename IGC_VLAPQF macroAndre Guedes1-12/+11
This patch renames the IGC_VLAPQF macro to IGC_VLANPQF as well as related macros so they match the register name and fields described in the data sheet. Signed-off-by: Andre Guedes <andre.guedes@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2020-05-18igc: Use netdev log helpers in igc_ethtool.cAndre Guedes1-20/+21
In igc_ethtool.c we print log messages using dev_* helpers, generating inconsistent output with the rest of the driver. Since this is a network device driver, we should preferably use netdev_* helpers because they append the interface name to the message, helping making sense the of the logs. This patch converts all dev_* calls to netdev_*. Signed-off-by: Andre Guedes <andre.guedes@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2020-05-18igc: add support to eeprom, registers and link self-testsVitaly Lifshits1-0/+60
Introduced igc_diag.c and igc_diag.h, these files have the diagnostics functionality of igc driver. For the time being these files are being used by ethtool self-test callbacks. Which mean that eeprom, registers and link self-tests for ethtool were implemented. Signed-off-by: Vitaly Lifshits <vitaly.lifshits@intel.com> Reported-by: kbuild test robot <lkp@intel.com> Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2020-04-19igc: Remove igc_*_mac_steering_filter() wrappersAndre Guedes1-12/+8
With the previous two patches, igc_add_mac_steering_filter() and igc_del_mac_steering_filter() became a pointless wrapper of igc_add_mac_filter() and igc_del_mac_filter(). This patch removes these wrappers and update callers to call igc_add_mac_filter() and igc_del_mac_filter() directly. Signed-off-by: Andre Guedes <andre.guedes@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2020-04-19igc: Change igc_add_mac_filter() returning valueAndre Guedes1-2/+0
In case of success, igc_add_mac_filter() returns the index in adapter->mac_table where the requested filter was added. This information, however, is not used by any caller of that function. In fact, callers have extra code just to handle this returning index as 0 (success). So this patch changes the function to return 0 on success instead, and cleans up the extra code. Signed-off-by: Andre Guedes <andre.guedes@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2020-04-17igc: Fix overwrites when dumping registersAndre Guedes1-1/+10
This patch fixes some register overwriting when dumping registers via ethtool. We have a total of 16 RAL registers, starting at offset 139. So RAH offset should be 139 + 16 = 155, not 145. As result some RAL registers are overwritten. Likewise, RAH registers are also overwritten by TDBAL, TDBAH, TDLEN, and TDH registers. To fix this bug while preserving the ABI, this patch re-writes RAL and RAH registers at the end of 'regs_buff' and bumps regs->version. It also removes some pointless comments in the middle of igc_set_regs(). Signed-off-by: Andre Guedes <andre.guedes@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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