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* ice: Remove unnecessary node owner checkBruce Allan2018-08-231-2/+1
| | | | | | | | | | | | There is already a check for owner == ICE_SCHED_NODE_OWNER_LAN at the beginning of ice_sched_update_vsi_child_nodes. Remove the additional check to address the static analysis tool smatch issue "warn: we tested 'owner' before and it was 'false'". Signed-off-by: Bruce Allan <bruce.w.allan@intel.com> Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com> Tested-by: Tony Brelinski <tonyx.brelinski@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
* ice: Fix multiple static analyser warningsAnirudh Venkataramanan2018-08-234-24/+25
| | | | | | | | | | | | | | | | | | | | | | | | This patch fixes the following smatch errors: 1) Fix "odd binop '0x0 & 0xc'" when performing the bitwise-and with a constant value of zero (ICE_AQC_GSET_RSS_LUT_TABLE_SIZE_128_FLAG). Remove a similar bitwise-and with 0 in ice_add_marker_act() and use the right mask ICE_LG_ACT_GENERIC_OFFSET_M in the expression. 2) Fix a similar issue "odd binop '0x0 & 0x1800' in ice_req_irq_msix_misc. 3) Fix "odd binop '0x380000 & 0x7fff8'" in ice_add_marker_act(). Also, use a new define ICE_LG_ACT_GENERIC_OFF_RX_DESC_PROF_IDX instead of magic number '7'. 4) Fix warn: odd binop '0x0 & 0x18' in ice_set_dflt_vsi_ctx() by removing unnecessary logic to explicitly unset bits 3 and 4 in port_vlan_bits. These bits are unset already by the memset on ctxt->info. Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com> Tested-by: Tony Brelinski <tonyx.brelinski@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
* net_sched: remove list_head from tc_actionCong Wang2018-08-211-4/+2
| | | | | | | | | | | | After commit 90b73b77d08e, list_head is no longer needed. Now we just need to convert the list iteration to array iteration for drivers. Fixes: 90b73b77d08e ("net: sched: change action API to use array of pointers to actions") Cc: Jiri Pirko <jiri@mellanox.com> Cc: Vlad Buslov <vladbu@mellanox.com> Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* Merge tag 'pci-v4.19-changes' of ↵Linus Torvalds2018-08-161-1/+0
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci Pull pci updates from Bjorn Helgaas: - Decode AER errors with names similar to "lspci" (Tyler Baicar) - Expose AER statistics in sysfs (Rajat Jain) - Clear AER status bits selectively based on the type of recovery (Oza Pawandeep) - Honor "pcie_ports=native" even if HEST sets FIRMWARE_FIRST (Alexandru Gagniuc) - Don't clear AER status bits if we're using the "Firmware-First" strategy where firmware owns the registers (Alexandru Gagniuc) - Use sysfs_match_string() to simplify ASPM sysfs parsing (Andy Shevchenko) - Remove unnecessary includes of <linux/pci-aspm.h> (Bjorn Helgaas) - Defer DPC event handling to work queue (Keith Busch) - Use threaded IRQ for DPC bottom half (Keith Busch) - Print AER status while handling DPC events (Keith Busch) - Work around IDT switch ACS Source Validation erratum (James Puthukattukaran) - Emit diagnostics for all cases of PCIe Link downtraining (Links operating slower than they're capable of) (Alexandru Gagniuc) - Skip VFs when configuring Max Payload Size (Myron Stowe) - Reduce Root Port Max Payload Size if necessary when hot-adding a device below it (Myron Stowe) - Simplify SHPC existence/permission checks (Bjorn Helgaas) - Remove hotplug sample skeleton driver (Lukas Wunner) - Convert pciehp to threaded IRQ handling (Lukas Wunner) - Improve pciehp tolerance of missed events and initially unstable links (Lukas Wunner) - Clear spurious pciehp events on resume (Lukas Wunner) - Add pciehp runtime PM support, including for Thunderbolt controllers (Lukas Wunner) - Support interrupts from pciehp bridges in D3hot (Lukas Wunner) - Mark fall-through switch cases before enabling -Wimplicit-fallthrough (Gustavo A. R. Silva) - Move DMA-debug PCI init from arch code to PCI core (Christoph Hellwig) - Fix pci_request_irq() usage of IRQF_ONESHOT when no handler is supplied (Heiner Kallweit) - Unify PCI and DMA direction #defines (Shunyong Yang) - Add PCI_DEVICE_DATA() macro (Andy Shevchenko) - Check for VPD completion before checking for timeout (Bert Kenward) - Limit Netronome NFP5000 config space size to work around erratum (Jakub Kicinski) - Set IRQCHIP_ONESHOT_SAFE for PCI MSI irqchips (Heiner Kallweit) - Document ACPI description of PCI host bridges (Bjorn Helgaas) - Add "pci=disable_acs_redir=" parameter to disable ACS redirection for peer-to-peer DMA support (we don't have the peer-to-peer support yet; this is just one piece) (Logan Gunthorpe) - Clean up devm_of_pci_get_host_bridge_resources() resource allocation (Jan Kiszka) - Fixup resizable BARs after suspend/resume (Christian König) - Make "pci=earlydump" generic (Sinan Kaya) - Fix ROM BAR access routines to stay in bounds and check for signature correctly (Rex Zhu) - Add DMA alias quirk for Microsemi Switchtec NTB (Doug Meyer) - Expand documentation for pci_add_dma_alias() (Logan Gunthorpe) - To avoid bus errors, enable PASID only if entire path supports End-End TLP prefixes (Sinan Kaya) - Unify slot and bus reset functions and remove hotplug knowledge from callers (Sinan Kaya) - Add Function-Level Reset quirks for Intel and Samsung NVMe devices to fix guest reboot issues (Alex Williamson) - Add function 1 DMA alias quirk for Marvell 88SS9183 PCIe SSD Controller (Bjorn Helgaas) - Remove Xilinx AXI-PCIe host bridge arch dependency (Palmer Dabbelt) - Remove Aardvark outbound window configuration (Evan Wang) - Fix Aardvark bridge window sizing issue (Zachary Zhang) - Convert Aardvark to use pci_host_probe() to reduce code duplication (Thomas Petazzoni) - Correct the Cadence cdns_pcie_writel() signature (Alan Douglas) - Add Cadence support for optional generic PHYs (Alan Douglas) - Add Cadence power management ops (Alan Douglas) - Remove redundant variable from Cadence driver (Colin Ian King) - Add Kirin MSI support (Xiaowei Song) - Drop unnecessary root_bus_nr setting from exynos, imx6, keystone, armada8k, artpec6, designware-plat, histb, qcom, spear13xx (Shawn Guo) - Move link notification settings from DesignWare core to individual drivers (Gustavo Pimentel) - Add endpoint library MSI-X interfaces (Gustavo Pimentel) - Correct signature of endpoint library IRQ interfaces (Gustavo Pimentel) - Add DesignWare endpoint library MSI-X callbacks (Gustavo Pimentel) - Add endpoint library MSI-X test support (Gustavo Pimentel) - Remove unnecessary GFP_ATOMIC from Hyper-V "new child" allocation (Jia-Ju Bai) - Add more devices to Broadcom PAXC quirk (Ray Jui) - Work around corrupted Broadcom PAXC config space to enable SMMU and GICv3 ITS (Ray Jui) - Disable MSI parsing to work around broken Broadcom PAXC logic in some devices (Ray Jui) - Hide unconfigured functions to work around a Broadcom PAXC defect (Ray Jui) - Lower iproc log level to reduce console output during boot (Ray Jui) - Fix mobiveil iomem/phys_addr_t type usage (Lorenzo Pieralisi) - Fix mobiveil missing include file (Lorenzo Pieralisi) - Add mobiveil Kconfig/Makefile support (Lorenzo Pieralisi) - Fix mvebu I/O space remapping issues (Thomas Petazzoni) - Use generic pci_host_bridge in mvebu instead of ARM-specific API (Thomas Petazzoni) - Whitelist VMD devices with fast interrupt handlers to avoid sharing vectors with slow handlers (Keith Busch) * tag 'pci-v4.19-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (153 commits) PCI/AER: Don't clear AER bits if error handling is Firmware-First PCI: Limit config space size for Netronome NFP5000 PCI/MSI: Set IRQCHIP_ONESHOT_SAFE for PCI-MSI irqchips PCI/VPD: Check for VPD access completion before checking for timeout PCI: Add PCI_DEVICE_DATA() macro to fully describe device ID entry PCI: Match Root Port's MPS to endpoint's MPSS as necessary PCI: Skip MPS logic for Virtual Functions (VFs) PCI: Add function 1 DMA alias quirk for Marvell 88SS9183 PCI: Check for PCIe Link downtraining PCI: Add ACS Redirect disable quirk for Intel Sunrise Point PCI: Add device-specific ACS Redirect disable infrastructure PCI: Convert device-specific ACS quirks from NULL termination to ARRAY_SIZE PCI: Add "pci=disable_acs_redir=" parameter for peer-to-peer support PCI: Allow specifying devices using a base bus and path of devfns PCI: Make specifying PCI devices in kernel parameters reusable PCI: Hide ACS quirk declarations inside PCI core PCI: Delay after FLR of Intel DC P3700 NVMe PCI: Disable Samsung SM961/PM961 NVMe before FLR PCI: Export pcie_has_flr() PCI: mvebu: Drop bogus comment above mvebu_pcie_map_registers() ...
| * igb: Remove unnecessary include of <linux/pci-aspm.h>Bjorn Helgaas2018-08-061-1/+0
| | | | | | | | | | | | | | | | | | The igb driver doesn't need anything provided by pci-aspm.h, so remove the unnecessary include of it. Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: Sinan Kaya <okaya@kernel.org> Acked-by: Alexander Duyck <alexander.h.duyck@intel.com> Acked-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
* | igbvf: netdev: Mark expected switch fall-throughGustavo A. R. Silva2018-08-071-0/+1
| | | | | | | | | | | | | | | | | | In preparation to enabling -Wimplicit-fallthrough, mark switch cases where we are expecting to fall through. Addresses-Coverity-ID: 114801 ("Missing break in switch") Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | igb: e1000_phy: Mark expected switch fall-throughGustavo A. R. Silva2018-08-071-0/+1
| | | | | | | | | | | | | | | | | | In preparation to enabling -Wimplicit-fallthrough, mark switch cases where we are expecting to fall through. Addresses-Coverity-ID: 114800 ("Missing break in switch") Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | igb: e1000_82575: Mark expected switch fall-throughGustavo A. R. Silva2018-08-071-0/+1
| | | | | | | | | | | | | | | | | | In preparation to enabling -Wimplicit-fallthrough, mark switch cases where we are expecting to fall through. Addresses-Coverity-ID: 114799 ("Missing break in switch") Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | igb_main: Mark expected switch fall-throughsGustavo A. R. Silva2018-08-071-0/+2
| | | | | | | | | | | | | | | | | | | | In preparation to enabling -Wimplicit-fallthrough, mark switch cases where we are expecting to fall through. Addresses-Coverity-ID: 200521 ("Missing break in switch") Addresses-Coverity-ID: 114797 ("Missing break in switch") Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | i40e_txrx: mark expected switch fall-throughGustavo A. R. Silva2018-08-071-1/+2
| | | | | | | | | | | | | | | | | | In preparation to enabling -Wimplicit-fallthrough, mark switch cases where we are expecting to fall through. Addresses-Coverity-ID: 114791 ("Missing break in switch") Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | i40e_main: mark expected switch fall-throughGustavo A. R. Silva2018-08-071-0/+1
| | | | | | | | | | | | | | | | | | In preparation to enabling -Wimplicit-fallthrough, mark switch cases where we are expecting to fall through. Addresses-Coverity-ID: 114790 ("Missing break in switch") Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | i40e: fix i40e_add_queue_stats data pointer updateJacob Keller2018-08-071-1/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This function accidentally failed to update the data pointer, which caused the reported stats to be incorrect. Additionally, statistics which follow queue stats in the output would potentially read non-zeroed garbage data from the ethtool buffer. This occurred because the data double pointer was not dereferenced before incrementing the size. Additionally, make sure this issue is more visible by adding a WARN_ONCE to the i40e_get_ethtool_stats function. This warning will trigger whenever the data pointer is not at the expected address, similar to the check that we make in the i40e_get_stat_strings() function. Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
* | i40e: Add AQ command for rearrange NVM structurePiotr Azarewicz2018-08-074-0/+42
| | | | | | | | | | | | | | | | | | | | | | | | During switching between old NVM structure approach (called structured NVM) to new one (called flat NVM) or backward flash needs to be rearranged to required NVM structure. This is a part of transition from one NVM structure to another. The function is introduced to command firmware to start rearrangement process. Signed-off-by: Piotr Azarewicz <piotr.azarewicz@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
* | i40e: Add additional return code to i40e_asq_send_commandPiotr Azarewicz2018-08-072-0/+4
| | | | | | | | | | | | | | | | | | Firmware can return a busy state, so the function return I40E_ERR_NOT_READY. Signed-off-by: Piotr Azarewicz <piotr.azarewicz@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
* | i40e: fix warning about shadowed ring parameterJacob Keller2018-08-071-4/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In commit 147e81ec7568 ("i40e: Test memory before ethtool alloc succeeds") code was added to handle ring allocation on systems with low memory. It shadowed the ring parameter pointer by introducing a local ring pointer inside the for loop. Most of the code in the loop already just accessed the ring via &rx_rings[i]. Since most of the code already does this, just remove the local variable. If someone considers it worth keeping a local around, they should use it for the whole section instead of just a couple of accesses. This fixes a warning when -Wshadow is enabled Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
* | i40e: remove unnecessary i variable causing -Wshadow warningJacob Keller2018-08-071-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit c61c8fe1d592 ("i40e: Implement an ethtool private flag to stop LLDP in FW") added an extra for-loop which added a shadowing 'i' variable as the index. However, the local variable i already exists, and we already use it as a loop index. Additionally, at this point, there is no further use of the variable, so it's safe to simply overwrite the variable contents. This fixes a -Wshadow warning which has started being enabled on some distributions Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Reviewed-by: Patryk Malek <patryk.malek@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
* | i40e: convert priority flow control stats to use helpersJacob Keller2018-08-071-36/+51
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The priority flow control statistics are laid out in the stats structure using arrays. This made it unwieldy to use as part of an i40e_stats array. Add a new structure type, i40e_pfc_stats, and a helper function i40e_get_pfc_stats which can return the stats for a given priority value as an i40e_pfc_stats structure. Use this to create an i40e_stats array, which we'll use to format and copy the strings and stats into the supplied buffers. This reduces even more boiler plate code in i40e_get_ethtool_stats and i40e_get_stat_strings. An alternative would be to modify the structure definition for the pfc stats, but this is more invasive to the rest of the code base. Note that a macro was used to setup the copy of stats from the pf->stats, as this reduces the chance of typos in the code names. It will produce a checkpatch.pl warning due to re-use of a macro argument. In this case, it should be safe, as the macro will fail to compile in cases where the argument is not a simple structure member name, and thus arguments with side effects should not be an issue. Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
* | i40e: convert VEB TC stats to use an i40e_stats arrayJacob Keller2018-08-071-40/+43
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The VEB TC stats are currently implemented with separate parsing, instead of using the i40e_stats array and associated helper functions. This is likely because the stats rely on embedding the TC number into the stat name. Update i40e_add_stat_strings to take variadic arguments, and use these to vsnprintf the i40e_stats string as a string containing format specifiers. Create a stats array for the VEB TC related stats, i40e_gstrings_veb_tc_stats, and use this along with the helper functions to remove the specialized boiler plate code. Always call i40e_add_ethtool_stats for both this array and the general VEB stats array. This ensures that we zero out any memory in case it was not zero-allocated for us. This ultimately results in less boiler plate code for the i40e_get_stat_strings and i40e_get_ethtool_stats. Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
* | i40e: Set fec_config when forcing link stateMariusz Stachura2018-08-071-0/+2
| | | | | | | | | | | | | | | | | | | | This patch configures FEC setting in i40e_force_link_state(). For some reason setting this field was overlooked thus causing 25G link to be configured incorrectly. Signed-off-by: Mariusz Stachura <mariusz.stachura@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
* | i40e: add helper to copy statistic values into ethtool bufferJacob Keller2018-08-071-23/+93
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Similar to the helper function to copy the ethtool stats strings, add and use a helper function for copying the ethtool stats into the supplied buffer. Just like before, we use a macro to avoid having to pass ARRAY_SIZE manually, so as to reduce chance of bugs. Some of the stats, especially queue stats, are a bit trickier, and will be handled in future patches. Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
* | i40e: add helper function for copying strings from stat arraysJacob Keller2018-08-071-20/+39
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Many of the ethtool statistics use the same basic logic for copying strings into the supplied buffer. A set of stats are stored in a const array of i40e_stats structures, and we apply these all together. Simplify the stats code by introducing a helper function which can take a stats array and copy the strings into the buffer, updating the buffer pointer as we go. We use a macro to implement i40e_add_stat_strings so that ARRAY_SIZE can be used on the array passed in. This ensures that we always use the matching size in __i40e_add_stat_strings. More complex stats currently do not use i40e_stats arrays, usually due to custom formatted strings, or because the stats are not laid out in the expected way. These stats will be updated to use the helper function in separate future patches. Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
* | i40e/i40evf: remove redundant functions i40evf_aq_{set/get}_phy_registerYueHaibing2018-08-071-69/+0
| | | | | | | | | | | | | | | | There are no in-tree callers. Signed-off-by: YueHaibing <yuehaibing@huawei.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
* | i40e: Remove duplicated prepare call in i40e_shutdownSergey Nemov2018-08-071-6/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Function call to i40e_prep_for_reset() is duplicated in i40e_shutdown routine and gets called before i40e_enable_mc_magic_wake() which blocks it from being executed correctly on system reboot or shutdown because adminq is already disabled by first i40e_prep_for_reset() call. Two register write calls are also duplicated. Signed-off-by: Sergey Nemov <sergey.nemov@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
* | ixgbe: Refactor queue disable logic to take completion time into accountAlexander Duyck2018-07-263-91/+224
| | | | | | | | | | | | | | | | | | | | | | | | | | | | This change is meant to allow us to take completion time into account when disabling queues. Previously we were just working with hard coded values for how long we should wait. This worked fine for the standard case where completion timeout was operating in the 50us to 50ms range, however on platforms that have higher completion timeout times this was resulting in Rx queues disable messages being displayed as we weren't waiting long enough for outstanding Rx DMA completions. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Don Buchholz <donald.buchholz@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
* | ixgbe: Reorder Tx/Rx shutdown to reduce time needed to stop deviceAlexander Duyck2018-07-261-7/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This change is meant to help reduce the time needed to shutdown the transmit and receive paths for the device. Specifically what we now do after this patch is disable the transmit path first at the netdev level, and then work on disabling the Rx. This way while we are waiting on the Rx queues to be disabled the Tx queues have an opportunity to drain out. In addition I have dropped the 10ms timeout that was left in the ixgbe_down function that seems to have been carried through from back in e1000 as far as I can tell. We shouldn't need it since we don't actually disable the Tx until much later and we have additional logic in place for verifying the Tx queues have been disabled. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Don Buchholz <donald.buchholz@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
* | igb: Use dma_wmb() instead of wmb() before doorbell writesVenkatesh Srinivas2018-07-261-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | igb writes to doorbells to post transmit and receive descriptors; after writing descriptors to memory but before writing to doorbells, use dma_wmb() rather than wmb(). wmb() is more heavyweight than necessary before doorbell writes. On x86, this avoids SFENCEs before doorbell writes in both the tx and rx refill paths. Signed-off-by: Venkatesh Srinivas <venkateshs@google.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
* | igb: Remove superfluous reset to PHY and page 0 selectionChristian Grönke2018-07-261-12/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch reverts two previous applied patches to fix an issue that appeared when using SGMII based SFP modules. In the current state the driver will try to reset the PHY before obtaining the phy_addr of the SGMII attached PHY. That leads to an error in e1000_write_phy_reg_sgmii_82575. Causing the initialization to fail: igb: Intel(R) Gigabit Ethernet Network Driver - version 5.4.0-k igb: Copyright (c) 2007-2014 Intel Corporation. igb: probe of ????:??:??.? failed with error -3 The patches being reverted are: commit 182785335447957409282ca745aa5bc3968facee Author: Aaron Sierra <asierra@xes-inc.com> Date: Tue Nov 29 10:03:56 2016 -0600 igb: reset the PHY before reading the PHY ID commit 440aeca4b9858248d8f16d724d9fa87a4f65fa33 Author: Matwey V Kornilov <matwey@sai.msu.ru> Date: Thu Nov 24 13:32:48 2016 +0300 igb: Explicitly select page 0 at initialization The first reverted patch directly causes the problem mentioned above. In case of SGMII the phy_addr is not known at this point and will only be obtained by 'igb_get_phy_id_82575' further down in the code. The second removed patch selects forces selection of page 0 in the PHY. Something that the reset tries to address as well. As pointed out by Alexander Duzck, the patch below fixes the same issue but in the proper location: commit 4e684f59d760a2c7c716bb60190783546e2d08a1 Author: Chris J Arges <christopherarges@gmail.com> Date: Wed Nov 2 09:13:42 2016 -0500 igb: Workaround for igb i210 firmware issue Reverts: 440aeca4b9858248d8f16d724d9fa87a4f65fa33. Reverts: 182785335447957409282ca745aa5bc3968facee. Signed-off-by: Christian Grönke <c.groenke@infodas.de> Reviewed-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
* | ixgbe: add ipsec security registers into ethtool register dumpShannon Nelson2018-07-261-1/+9
| | | | | | | | | | | | | | | | | | Add the ixgbe's security configuration registers into the register dump. Signed-off-by: Shannon Nelson <shannon.nelson@oracle.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
* | ixgbe: Do not allow LRO or MTU change with XDPTony Nguyen2018-07-261-0/+10
| | | | | | | | | | | | | | | | | | | | | | | | XDP does not support jumbo frames or LRO. These checks are being made outside the driver when an XDP program is loaded, however, there is nothing preventing these from changing after an XDP program is loaded. Add the checks so that while an XDP program is loaded, do not allow MTU to be changed or LRO to be enabled. Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
* | Merge ra.kernel.org:/pub/scm/linux/kernel/git/torvalds/linuxDavid S. Miller2018-07-202-2/+12
|\ \ | | | | | | | | | | | | | | | | | | All conflicts were trivial overlapping changes, so reasonably easy to resolve. Signed-off-by: David S. Miller <davem@davemloft.net>
| * | ixgbe: Off by one in ixgbe_ipsec_tx()Dan Carpenter2018-07-121-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The ipsec->tx_tbl[] has IXGBE_IPSEC_MAX_SA_COUNT elements so the > needs to be changed to >= so we don't read one element beyond the end of the array. Fixes: 592594704761 ("ixgbe: process the Tx ipsec offload") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Acked-by: Shannon Nelson <shannon.nelson@oracle.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
| * | ixgbe: Be more careful when modifying MAC filtersAlexander Duyck2018-07-121-1/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This change makes it so that we are much more explicit about the ordering of updates to the receive address register (RAR) table. Prior to this patch I believe we may have been updating the table while entries were still active, or possibly allowing for reordering of things since we weren't explicitly flushing writes to either the lower or upper portion of the register prior to accessing the other half. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Reviewed-by: Shannon Nelson <shannon.nelson@oracle.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
* | | Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-nextDavid S. Miller2018-07-143-3/+0
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Daniel Borkmann says: ==================== pull-request: bpf-next 2018-07-15 The following pull-request contains BPF updates for your *net-next* tree. The main changes are: 1) Various different arm32 JIT improvements in order to optimize code emission and make the JIT code itself more robust, from Russell. 2) Support simultaneous driver and offloaded XDP in order to allow for advanced use-cases where some work is offloaded to the NIC and some to the host. Also add ability for bpftool to load programs and maps beyond just the cgroup case, from Jakub. 3) Add BPF JIT support in nfp for multiplication as well as division. For the latter in particular, it uses the reciprocal algorithm to emulate it, from Jiong. 4) Add BTF pretty print functionality to bpftool in plain and JSON output format, from Okash. 5) Add build and installation to the BPF helper man page into bpftool, from Quentin. 6) Add a TCP BPF callback for listening sockets which is triggered right after the socket transitions to TCP_LISTEN state, from Andrey. 7) Add a new cgroup tree command to bpftool which iterates over the whole cgroup tree and prints all attached programs, from Roman. 8) Improve xdp_redirect_cpu sample to support parsing of double VLAN tagged packets, from Jesper. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | xdp: don't make drivers report attachment modeJakub Kicinski2018-07-133-3/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | prog_attached of struct netdev_bpf should have been superseded by simply setting prog_id long time ago, but we kept it around to allow offloading drivers to communicate attachment mode (drv vs hw). Subsequently drivers were also allowed to report back attachment flags (prog_flags), and since nowadays only programs attached will XDP_FLAGS_HW_MODE can get offloaded, we can tell the attachment mode from the flags driver reports. Remove prog_attached member. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: Quentin Monnet <quentin.monnet@netronome.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
* | | | net: allow fallback function to pass netdevAlexander Duyck2018-07-091-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | For most of these calls we can just pass NULL through to the fallback function as the sb_dev. The only cases where we cannot are the cases where we might be dealing with either an upper device or a driver that would have configured things to support an sb_dev itself. The only driver that has any significant change in this patch set should be ixgbe as we can drop the redundant functionality that existed in both the ndo_select_queue function and the fallback function that was passed through to us. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
* | | | net: allow ndo_select_queue to pass netdevAlexander Duyck2018-07-091-3/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch makes it so that instead of passing a void pointer as the accel_priv we instead pass a net_device pointer as sb_dev. Making this change allows us to pass the subordinate device through to the fallback function eventually so that we can keep the actual code in the ndo_select_queue call as focused on possible on the exception cases. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
* | | | net: Add support for subordinate traffic classes to netdev_pick_txAlexander Duyck2018-07-091-13/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This change makes it so that we can support the concept of subordinate device traffic classes to the core networking code. In doing this we can start pulling out the driver specific bits needed to support selecting a queue based on an upper device. The solution at is currently stands is only partially implemented. I have the start of some XPS bits in here, but I would still need to allow for configuration of the XPS maps on the queues reserved for the subordinate devices. For now I am using the reference to the sb_dev XPS map as just a way to skip the lookup of the lower device XPS map for now as that would result in the wrong queue being picked. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
* | | | ixgbe: Add code to populate and use macvlan TC to Tx queue mapAlexander Duyck2018-07-091-6/+38
|/ / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch makes it so that we use the tc_to_txq mapping in the macvlan device in order to select the Tx queue for outgoing packets. The idea here is to try and move away from using ixgbe_select_queue and to come up with a generic way to make this work for devices going forward. By encoding this information in the netdev this can become something that can be used generically as a solution for similar setups going forward. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
* | | igb: Add support for ETF offloadJesus Sanchez-Palencia2018-07-043-17/+138
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Implement HW offload support for SO_TXTIME through igb's Launchtime feature. This is done by extending igb_setup_tc() so it supports TC_SETUP_QDISC_ETF and configuring i210 so time based transmit arbitration is enabled. The FQTSS transmission mode added before is extended so strict priority (SP) queues wait for stream reservation (SR) ones. igb_config_tx_modes() is extended so it can support enabling/disabling Launchtime following the previous approach used for the credit-based shaper (CBS). As the previous flow, FQTSS transmission mode is enabled automatically by the driver once Launchtime (or CBS, as before) is enabled. Similarly, it's automatically disabled when the feature is disabled for the last queue that had it setup on. The driver just consumes the transmit times from the skbuffs directly, so no special handling is done in case an 'invalid' time is provided. We assume this has been handled by the ETF qdisc already. Signed-off-by: Jesus Sanchez-Palencia <jesus.sanchez-palencia@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | | igb: Only call skb_tx_timestamp after descriptors are readyJesus Sanchez-Palencia2018-07-041-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently, skb_tx_timestamp() is being called before the Tx descriptors are prepared in igb_xmit_frame_ring(), which happens during either the igb_tso() or igb_tx_csum() calls. Given that now the skb->tstamp might be used to carry the timestamp for SO_TXTIME, we must only call skb_tx_timestamp() after the information has been copied into the Tx descriptors. Signed-off-by: Jesus Sanchez-Palencia <jesus.sanchez-palencia@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | | igb: Refactor igb_offload_cbs()Jesus Sanchez-Palencia2018-07-041-9/+14
| | | | | | | | | | | | | | | | | | | | | | | | Split code into a separate function (igb_offload_apply()) that will be used by ETF offload implementation. Signed-off-by: Jesus Sanchez-Palencia <jesus.sanchez-palencia@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | | igb: Only change Tx arbitration when CBS is onJesus Sanchez-Palencia2018-07-041-16/+33
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently the data transmission arbitration algorithm - DataTranARB field on TQAVCTRL reg - is always set to CBS when the Tx mode is changed from legacy to 'Qav' mode. Make that configuration a bit more granular in preparation for the upcoming Launchtime enabling patches, since CBS and Launchtime can be enabled separately. That is achieved by moving the DataTranARB setup to igb_config_tx_modes() instead. Similarly, when disabling CBS we must check if it has been disabled for all queues, and clear the DataTranARB accordingly. Signed-off-by: Jesus Sanchez-Palencia <jesus.sanchez-palencia@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | | igb: Refactor igb_configure_cbs()Jesus Sanchez-Palencia2018-07-041-32/+28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Make this function retrieve what it needs from the Tx ring being addressed since it already relies on what had been saved on it before. Also, since this function will be used by the upcoming Launchtime patches rename it to better reflect its intention. Note that Launchtime is not part of what 802.1Qav specifies, but the i210 datasheet refers to this set of functionality as "Qav Transmission Mode". Here we also perform a tiny refactor at is_any_cbs_enabled(), and add further documentation to igb_setup_tx_mode(). Signed-off-by: Jesus Sanchez-Palencia <jesus.sanchez-palencia@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | | Merge ra.kernel.org:/pub/scm/linux/kernel/git/davem/netDavid S. Miller2018-07-032-19/+29
|\| | | | | | | | | | | | | | | | | | | | | | | | | | | | | Simple overlapping changes in stmmac driver. Adjust skb_gro_flush_final_remcsum function signature to make GRO list changes in net-next, as per Stephen Rothwell's example merge resolution. Signed-off-by: David S. Miller <davem@davemloft.net>
| * | i40e: split XDP_TX tail and XDP_REDIRECT map flushingJesper Dangaard Brouer2018-06-281-9/+15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The driver was combining the XDP_TX tail flush and XDP_REDIRECT map flushing (xdp_do_flush_map). This is suboptimal, these two flush operations should be kept separate. It looks like the mistake was copy-pasted from ixgbe. Fixes: d9314c474d4f ("i40e: add support for XDP_REDIRECT") Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com> Acked-by: Björn Töpel <bjorn.topel@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | ixgbe: split XDP_TX tail and XDP_REDIRECT map flushingJesper Dangaard Brouer2018-06-281-10/+14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The driver was combining the XDP_TX tail flush and XDP_REDIRECT map flushing (xdp_do_flush_map). This is suboptimal, these two flush operations should be kept separate. Fixes: 11393cc9b9be ("xdp: Add batching support to redirect map") Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | | net: sched: pass extack pointer to block binds and cb registrationJohn Hurley2018-06-264-4/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pass the extact struct from a tc qdisc add to the block bind function and, in turn, to the setup_tc ndo of binding device via the tc_block_offload struct. Pass this back to any block callback registrations to allow netlink logging of fails in the bind process. Signed-off-by: John Hurley <john.hurley@netronome.com> Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Acked-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | | cls_flower: fix error values for commands not supported by driversJiri Pirko2018-06-253-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | -EOPNOTSUPP is the error value that should be reported if a flower command is not supported by a driver. Fix it in couple of Intel drivers. Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | | net: drivers/net: Convert random_ether_addr to eth_random_addrJoe Perches2018-06-231-1/+1
|/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | random_ether_addr is a #define for eth_random_addr which is generally preferred in kernel code by ~3:1 Convert the uses of random_ether_addr to enable removing the #define Miscellanea: o Convert &vfmac[0] to equivalent vfmac and avoid unnecessary line wrap Signed-off-by: Joe Perches <joe@perches.com> Acked-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds2018-06-211-4/+3
|\ \ | |/ |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull networking fixes from David Miller: 1) Fix crash on bpf_prog_load() errors, from Daniel Borkmann. 2) Fix ATM VCC memory accounting, from David Woodhouse. 3) fib6_info objects need RCU freeing, from Eric Dumazet. 4) Fix SO_BINDTODEVICE handling for TCP sockets, from David Ahern. 5) Fix clobbered error code in enic_open() failure path, from Govindarajulu Varadarajan. 6) Propagate dev_get_valid_name() error returns properly, from Li RongQing. 7) Fix suspend/resume in davinci_emac driver, from Bartosz Golaszewski. 8) Various act_ife fixes (recursive locking, IDR leaks, etc.) from Davide Caratti. 9) Fix buggy checksum handling in sungem driver, from Eric Dumazet. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (40 commits) ip: limit use of gso_size to udp stmmac: fix DMA channel hang in half-duplex mode net: stmmac: socfpga: add additional ocp reset line for Stratix10 net: sungem: fix rx checksum support bpfilter: ignore binary files bpfilter: fix build error net/usb/drivers: Remove useless hrtimer_active check net/sched: act_ife: preserve the action control in case of error net/sched: act_ife: fix recursive lock and idr leak net: ethernet: fix suspend/resume in davinci_emac net: propagate dev_get_valid_name return code enic: do not overwrite error code net/tcp: Fix socket lookups with SO_BINDTODEVICE ptp: replace getnstimeofday64() with ktime_get_real_ts64() net/ipv6: respect rcu grace period before freeing fib6_info net: net_failover: fix typo in net_failover_slave_register() ipvlan: use ETH_MAX_MTU as max mtu net: hamradio: use eth_broadcast_addr enic: initialize enic->rfs_h.lock in enic_probe MAINTAINERS: Add Sam as the maintainer for NCSI ...
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