Commit Graph

3762 Commits

Author SHA1 Message Date
Dave Ertman
52a08caa0c i40e: Fix static analysis tool warning
This patch fixes a problem where a static analysis tool generates
a warning for "INVARIANT_CONDITION: Expression 'enabled_tc' used
in the condition always yields the same result."

Without this patch, the driver will not pass the static analysis
tool checks without generating warnings.

This patch fixes the problem by eliminating the irrelevant check
and redundant assignment for the value of enabled_tc.

Change-ID: Ia7d44cb050f507df7de333e96369d322e08bf408
Signed-off-by: Dave Ertman <david.m.ertman@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-08-18 11:43:11 -07:00
Jacob Keller
62fe2a865e i40evf: add missing rtnl_lock() around i40evf_set_interrupt_capability
The function calls netif_set_real_num_(tx|rx)_queues, both of which
should be done only under rntl lock. Unfortunately the
i40evf_init_task did not hold the rtnl_lock as necessary. This patch
adds the locking needed.

Change-ID: Ib72a21c3ce22b71a226b16f9bbe0f5f8cc3e849b
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>
2016-08-18 11:43:11 -07:00
Catherine Sullivan
42bce04ef3 i40e: reset RX csum error stat with other pf stats
When we are resetting the pf stats we should also reset the RX csum
error stat.

Change-ID: I7af5ee0ec81a10f6deee1a7b8c2082ea068ef620
Signed-off-by: Catherine Sullivan <catherine.sullivan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-08-18 11:43:11 -07:00
Catherine Sullivan
dc5b4e9fad i40e/i40evf: Reset VLAN filter count when resetting
When we do a reset, all the VLAN filters get added again. Therefore we also
want to reset the VLAN count to 0 or we quickly run out of filters.

Change-ID: I459f26851e22204dc8b8999928ad87cde8170119
Signed-off-by: Catherine Sullivan <catherine.sullivan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-08-18 11:43:10 -07:00
Anjali Singhai Jain
3a0f52928a i40e: Fix a bug where a client close can be called before an open is complete
The client->open call in this path was not protected with the
client instance mutex, and hence the client->close can get initiated
before the open completes.

Change-Id: I0ed60c38868dd3f44966b6ed49a063d0e5b7edf5
Signed-off-by: Anjali Singhai Jain <anjali.singhai@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-08-18 11:43:10 -07:00
Wei Yongjun
eb27163b2e i40e: Use list_move instead of list_del/list_add
Using list_move() instead of list_del() + list_add().

Signed-off-by: Wei Yongjun <weiyj.lk@gmail.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-08-18 11:43:09 -07:00
WANG Cong
22dc13c837 net_sched: convert tcf_exts from list to pointer array
As pointed out by Jamal, an action could be shared by
multiple filters, so we can't use list to chain them
any more after we get rid of the original tc_action.
Instead, we could just save pointers to these actions
in tcf_exts, since they are refcount'ed, so convert
the list to an array of pointers.

The "ugly" part is the action API still accepts list
as a parameter, I just introduce a helper function to
convert the array of pointers to a list, instead of
relying on the C99 feature to iterate the array.

Fixes: a85a970af2 ("net_sched: move tc_action into tcf_common")
Reported-by: Jamal Hadi Salim <jhs@mojatatu.com>
Cc: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-17 19:27:51 -04:00
Dave Ertman
fbfe12c64f i40e: check for and deal with non-contiguous TCs
The i40e driver was causing a kernel panic when
non-contiguous Traffic Classes, or Traffic Classes not
starting with TC0, were configured on a link partner switch.
i40e does not support non-contiguous TCs.

To fix this, the patch changes the logic when determining
the total number of TCs enabled.  Before, this would use the
highest TC number enabled and assume that all TCs below it were
also enabled.  Now, we create a bitmask of enabled TCs and scan
it to determine not only the number of TCs, but also if the set
of enabled TCs starts at zero and is contiguous.  If not, then
DCB is disabled by only returning one TC.

Signed-off-by: Dave Ertman <david.m.ertman@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-08-16 13:23:13 -07:00
Alexander Duyck
3d951822be ixgbe: Re-enable ability to toggle VLAN filtering
Back when I submitted the GSO code I messed up and dropped the support for
disabling the VLAN tag filtering via the feature bit.  This patch
re-enables the use of the NETIF_F_HW_VLAN_CTAG_FILTER to enable/disable the
VLAN filtering independent of toggling promiscuous mode.

Fixes: b83e30104b ("ixgbe/ixgbevf: Add support for GSO partial")
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>
2016-08-16 13:21:51 -07:00
Alexander Duyck
f60439bc21 ixgbe: Force VLNCTRL.VFE to be set in all VMDq paths
When I was adding the code for enabling VLAN promiscuous mode with SR-IOV
enabled I had inadvertently left the VLNCTRL.VFE bit unchanged as I has
assumed there was code in another path that was setting it when we enabled
SR-IOV.  This wasn't the case and as a result we were just disabling VLAN
filtering for all the VFs apparently.

Also the previous patches were always clearing CFIEN which was always set
to 0 by the hardware anyway so I am dropping the redundant bit clearing.

Fixes: 1636956491 ("ixgbe: Add support for VLAN promiscuous with SR-IOV")
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>
2016-08-16 13:20:46 -07:00
Jarod Wilson
8037dd60f4 e1000e: fix PTP on e1000_pch_lpt variants
I've got reports that the Intel I-218V NIC in Intel NUC5i5RYH systems used
as a PTP slave experiences random ~10 hour clock jumps, which are resolved
if the same workaround for the 82574 and 82583 is employed, so set the
appropriate flag2 in e1000_pch_lpt_info too.

Reported-by: Rupesh Patel <rupatel@redhat.com>
Signed-off-by: Jarod Wilson <jarod@redhat.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-08-16 10:47:20 -07:00
Jarod Wilson
0be5b96cd8 e1000e: factor out systim sanitization
This is prepatory work for an expanding list of adapter families that have
occasional ~10 hour clock jumps when being used for PTP. Factor out the
sanitization function and convert to using a feature (bug) flag, per
suggestion from Jesse Brandeburg.

Littering functional code with device-specific checks is much messier than
simply checking a flag, and having device-specific init set flags as needed.
There are probably a number of other cases in the e1000e code that
could/should be converted similarly.

Suggested-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Jarod Wilson <jarod@redhat.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-08-16 10:46:19 -07:00
Kshitiz Gupta
0066c8b6f4 igb: fix adjusting PTP timestamps for Tx/Rx latency
Fix PHY delay compensation math in igb_ptp_tx_hwtstamp() and
igb_ptp_rx_rgtstamp. Add PHY delay compensation in
igb_ptp_rx_pktstamp().

In the IGB driver, there are two functions that retrieve timestamps
received by the PHY - igb_ptp_rx_rgtstamp() and igb_ptp_rx_pktstamp().
The previous commit only changed igb_ptp_rx_rgtstamp(), and the change
was incorrect.

There are two instances in which PHY delay compensations should be
made:

- Before the packet transmission over the PHY, the latency between
  when the packet is timestamped and transmission of the packets,
  should be an add operation, but it is currently a subtract.

- After the packets are received from the PHY, the latency between
  the receiving and timestamping of the packets should be a subtract
  operation, but it is currently an add.

Signed-off-by: Kshitiz Gupta <kshitiz.gupta@ni.com>
Fixes: 3f544d2 (igb: adjust ptp timestamps for tx/rx latency)
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-08-16 10:32:59 -07:00
Linus Torvalds
c8d0267efd PCI changes for the v4.8 merge window:
Enumeration
     Move ecam.h to linux/include/pci-ecam.h (Jayachandran C)
     Add parent device field to ECAM struct pci_config_window (Jayachandran C)
     Add generic MCFG table handling (Tomasz Nowicki)
     Refactor pci_bus_assign_domain_nr() for CONFIG_PCI_DOMAINS_GENERIC (Tomasz Nowicki)
     Factor DT-specific pci_bus_find_domain_nr() code out (Tomasz Nowicki)
 
   Resource management
     Add devm_request_pci_bus_resources() (Bjorn Helgaas)
     Unify pci_resource_to_user() declarations (Bjorn Helgaas)
     Implement pci_resource_to_user() with pcibios_resource_to_bus() (microblaze, powerpc, sparc) (Bjorn Helgaas)
     Request host bridge window resources (designware, iproc, rcar, xgene, xilinx, xilinx-nwl) (Bjorn Helgaas)
     Make PCI I/O space optional on ARM32 (Bjorn Helgaas)
     Ignore write combining when mapping I/O port space (Bjorn Helgaas)
     Claim bus resources on MIPS PCI_PROBE_ONLY set-ups (Bjorn Helgaas)
     Remove unicore32 pci=firmware command line parameter handling (Bjorn Helgaas)
     Support I/O resources when parsing host bridge resources (Jayachandran C)
     Add helpers to request/release memory and I/O regions (Johannes Thumshirn)
     Use pci_(request|release)_mem_regions (NVMe, lpfc, GenWQE, ethernet/intel, alx) (Johannes Thumshirn)
     Extend pci=resource_alignment to specify device/vendor IDs (Koehrer Mathias (ETAS/ESW5))
     Add generic pci_bus_claim_resources() (Lorenzo Pieralisi)
     Claim bus resources on ARM32 PCI_PROBE_ONLY set-ups (Lorenzo Pieralisi)
     Remove ARM32 and ARM64 arch-specific pcibios_enable_device() (Lorenzo Pieralisi)
     Add pci_unmap_iospace() to unmap I/O resources (Sinan Kaya)
     Remove powerpc __pci_mmap_set_pgprot() (Yinghai Lu)
 
   PCI device hotplug
     Allow additional bus numbers for hotplug bridges (Keith Busch)
     Ignore interrupts during D3cold (Lukas Wunner)
 
   Power management
     Enforce type casting for pci_power_t (Andy Shevchenko)
     Don't clear d3cold_allowed for PCIe ports (Mika Westerberg)
     Put PCIe ports into D3 during suspend (Mika Westerberg)
     Power on bridges before scanning new devices (Mika Westerberg)
     Runtime resume bridge before rescan (Mika Westerberg)
     Add runtime PM support for PCIe ports (Mika Westerberg)
     Remove redundant check of pcie_set_clkpm (Shawn Lin)
 
   Virtualization
     Add function 1 DMA alias quirk for Marvell 88SE9182 (Aaron Sierra)
     Add DMA alias quirk for Adaptec 3805 (Alex Williamson)
     Mark Atheros AR9485 and QCA9882 to avoid bus reset (Chris Blake)
     Add ACS quirk for Solarflare SFC9220 (Edward Cree)
 
   MSI
     Fix PCI_MSI dependencies (Arnd Bergmann)
     Add pci_msix_desc_addr() helper (Christoph Hellwig)
     Switch msix_program_entries() to use pci_msix_desc_addr() (Christoph Hellwig)
     Make the "entries" argument to pci_enable_msix() optional (Christoph Hellwig)
     Provide sensible IRQ vector alloc/free routines (Christoph Hellwig)
     Spread interrupt vectors in pci_alloc_irq_vectors() (Christoph Hellwig)
 
   Error Handling
     Bind DPC to Root Ports as well as Downstream Ports (Keith Busch)
     Remove DPC tristate module option (Keith Busch)
     Convert Downstream Port Containment driver to use devm_* functions (Mika Westerberg)
 
   Generic host bridge driver
     Select IRQ_DOMAIN (Arnd Bergmann)
     Claim bus resources on PCI_PROBE_ONLY set-ups (Lorenzo Pieralisi)
 
   ACPI host bridge driver
     Add ARM64 acpi_pci_bus_find_domain_nr() (Tomasz Nowicki)
     Add ARM64 ACPI support for legacy IRQs parsing and consolidation with DT code (Tomasz Nowicki)
     Implement ARM64 AML accessors for PCI_Config region (Tomasz Nowicki)
     Support ARM64 ACPI-based PCI host controller (Tomasz Nowicki)
 
   Altera host bridge driver
     Check link status before retrain link (Ley Foon Tan)
     Poll for link up status after retraining the link (Ley Foon Tan)
 
   Axis ARTPEC-6 host bridge driver
     Add PCI_MSI_IRQ_DOMAIN dependency (Arnd Bergmann)
     Add DT binding for Axis ARTPEC-6 PCIe controller (Niklas Cassel)
     Add Axis ARTPEC-6 PCIe controller driver (Niklas Cassel)
 
   Intel VMD host bridge driver
     Use lock save/restore in interrupt enable path (Jon Derrick)
     Select device dma ops to override (Keith Busch)
     Initialize list item in IRQ disable (Keith Busch)
     Use x86_vector_domain as parent domain (Keith Busch)
     Separate MSI and MSI-X vector sharing (Keith Busch)
 
   Marvell Aardvark host bridge driver
     Add DT binding for the Aardvark PCIe controller (Thomas Petazzoni)
     Add Aardvark PCI host controller driver (Thomas Petazzoni)
     Add Aardvark PCIe support for Armada 3700 (Thomas Petazzoni)
 
   Microsoft Hyper-V host bridge driver
     Fix interrupt cleanup path (Cathy Avery)
     Don't leak buffer in hv_pci_onchannelcallback() (Vitaly Kuznetsov)
     Handle all pending messages in hv_pci_onchannelcallback() (Vitaly Kuznetsov)
 
   NVIDIA Tegra host bridge driver
     Program PADS_REFCLK_CFG* always, not just on legacy SoCs (Stephen Warren)
     Program PADS_REFCLK_CFG* registers with per-SoC values (Stephen Warren)
     Use lower-case hex consistently for register definitions (Thierry Reding)
     Use generic pci_remap_iospace() rather than ARM32-specific one (Thierry Reding)
     Stop setting pcibios_min_mem (Thierry Reding)
 
   Renesas R-Car host bridge driver
     Drop gen2 dummy I/O port region (Bjorn Helgaas)
 
   TI DRA7xx host bridge driver
     Fix return value in case of error (Christophe JAILLET)
 
   Xilinx AXI host bridge driver
     Fix return value in case of error (Christophe JAILLET)
 
   Miscellaneous
     Make bus_attr_resource_alignment static (Ben Dooks)
     Include <asm/dma.h> for isa_dma_bridge_buggy (Ben Dooks)
     MAINTAINERS: Add file patterns for PCI device tree bindings (Geert Uytterhoeven)
     Make host bridge drivers explicitly non-modular (Paul Gortmaker)
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Merge tag 'pci-v4.8-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci

Pull PCI updates from Bjorn Helgaas:
 "Highlights:

   - ARM64 support for ACPI host bridges

   - new drivers for Axis ARTPEC-6 and Marvell Aardvark

   - new pci_alloc_irq_vectors() interface for MSI-X, MSI, legacy INTx

   - pci_resource_to_user() cleanup (more to come)

  Detailed summary:

  Enumeration:
   - Move ecam.h to linux/include/pci-ecam.h (Jayachandran C)
   - Add parent device field to ECAM struct pci_config_window (Jayachandran C)
   - Add generic MCFG table handling (Tomasz Nowicki)
   - Refactor pci_bus_assign_domain_nr() for CONFIG_PCI_DOMAINS_GENERIC (Tomasz Nowicki)
   - Factor DT-specific pci_bus_find_domain_nr() code out (Tomasz Nowicki)

  Resource management:
   - Add devm_request_pci_bus_resources() (Bjorn Helgaas)
   - Unify pci_resource_to_user() declarations (Bjorn Helgaas)
   - Implement pci_resource_to_user() with pcibios_resource_to_bus() (microblaze, powerpc, sparc) (Bjorn Helgaas)
   - Request host bridge window resources (designware, iproc, rcar, xgene, xilinx, xilinx-nwl) (Bjorn Helgaas)
   - Make PCI I/O space optional on ARM32 (Bjorn Helgaas)
   - Ignore write combining when mapping I/O port space (Bjorn Helgaas)
   - Claim bus resources on MIPS PCI_PROBE_ONLY set-ups (Bjorn Helgaas)
   - Remove unicore32 pci=firmware command line parameter handling (Bjorn Helgaas)
   - Support I/O resources when parsing host bridge resources (Jayachandran C)
   - Add helpers to request/release memory and I/O regions (Johannes Thumshirn)
   - Use pci_(request|release)_mem_regions (NVMe, lpfc, GenWQE, ethernet/intel, alx) (Johannes Thumshirn)
   - Extend pci=resource_alignment to specify device/vendor IDs (Koehrer Mathias (ETAS/ESW5))
   - Add generic pci_bus_claim_resources() (Lorenzo Pieralisi)
   - Claim bus resources on ARM32 PCI_PROBE_ONLY set-ups (Lorenzo Pieralisi)
   - Remove ARM32 and ARM64 arch-specific pcibios_enable_device() (Lorenzo Pieralisi)
   - Add pci_unmap_iospace() to unmap I/O resources (Sinan Kaya)
   - Remove powerpc __pci_mmap_set_pgprot() (Yinghai Lu)

  PCI device hotplug:
   - Allow additional bus numbers for hotplug bridges (Keith Busch)
   - Ignore interrupts during D3cold (Lukas Wunner)

  Power management:
   - Enforce type casting for pci_power_t (Andy Shevchenko)
   - Don't clear d3cold_allowed for PCIe ports (Mika Westerberg)
   - Put PCIe ports into D3 during suspend (Mika Westerberg)
   - Power on bridges before scanning new devices (Mika Westerberg)
   - Runtime resume bridge before rescan (Mika Westerberg)
   - Add runtime PM support for PCIe ports (Mika Westerberg)
   - Remove redundant check of pcie_set_clkpm (Shawn Lin)

  Virtualization:
   - Add function 1 DMA alias quirk for Marvell 88SE9182 (Aaron Sierra)
   - Add DMA alias quirk for Adaptec 3805 (Alex Williamson)
   - Mark Atheros AR9485 and QCA9882 to avoid bus reset (Chris Blake)
   - Add ACS quirk for Solarflare SFC9220 (Edward Cree)

  MSI:
   - Fix PCI_MSI dependencies (Arnd Bergmann)
   - Add pci_msix_desc_addr() helper (Christoph Hellwig)
   - Switch msix_program_entries() to use pci_msix_desc_addr() (Christoph Hellwig)
   - Make the "entries" argument to pci_enable_msix() optional (Christoph Hellwig)
   - Provide sensible IRQ vector alloc/free routines (Christoph Hellwig)
   - Spread interrupt vectors in pci_alloc_irq_vectors() (Christoph Hellwig)

  Error Handling:
   - Bind DPC to Root Ports as well as Downstream Ports (Keith Busch)
   - Remove DPC tristate module option (Keith Busch)
   - Convert Downstream Port Containment driver to use devm_* functions (Mika Westerberg)

  Generic host bridge driver:
   - Select IRQ_DOMAIN (Arnd Bergmann)
   - Claim bus resources on PCI_PROBE_ONLY set-ups (Lorenzo Pieralisi)

  ACPI host bridge driver:
   - Add ARM64 acpi_pci_bus_find_domain_nr() (Tomasz Nowicki)
   - Add ARM64 ACPI support for legacy IRQs parsing and consolidation with DT code (Tomasz Nowicki)
   - Implement ARM64 AML accessors for PCI_Config region (Tomasz Nowicki)
   - Support ARM64 ACPI-based PCI host controller (Tomasz Nowicki)

  Altera host bridge driver:
   - Check link status before retrain link (Ley Foon Tan)
   - Poll for link up status after retraining the link (Ley Foon Tan)

  Axis ARTPEC-6 host bridge driver:
   - Add PCI_MSI_IRQ_DOMAIN dependency (Arnd Bergmann)
   - Add DT binding for Axis ARTPEC-6 PCIe controller (Niklas Cassel)
   - Add Axis ARTPEC-6 PCIe controller driver (Niklas Cassel)

  Intel VMD host bridge driver:
   - Use lock save/restore in interrupt enable path (Jon Derrick)
   - Select device dma ops to override (Keith Busch)
   - Initialize list item in IRQ disable (Keith Busch)
   - Use x86_vector_domain as parent domain (Keith Busch)
   - Separate MSI and MSI-X vector sharing (Keith Busch)

  Marvell Aardvark host bridge driver:
   - Add DT binding for the Aardvark PCIe controller (Thomas Petazzoni)
   - Add Aardvark PCI host controller driver (Thomas Petazzoni)
   - Add Aardvark PCIe support for Armada 3700 (Thomas Petazzoni)

  Microsoft Hyper-V host bridge driver:
   - Fix interrupt cleanup path (Cathy Avery)
   - Don't leak buffer in hv_pci_onchannelcallback() (Vitaly Kuznetsov)
   - Handle all pending messages in hv_pci_onchannelcallback() (Vitaly Kuznetsov)

  NVIDIA Tegra host bridge driver:
   - Program PADS_REFCLK_CFG* always, not just on legacy SoCs (Stephen Warren)
   - Program PADS_REFCLK_CFG* registers with per-SoC values (Stephen Warren)
   - Use lower-case hex consistently for register definitions (Thierry Reding)
   - Use generic pci_remap_iospace() rather than ARM32-specific one (Thierry Reding)
   - Stop setting pcibios_min_mem (Thierry Reding)

  Renesas R-Car host bridge driver:
   - Drop gen2 dummy I/O port region (Bjorn Helgaas)

  TI DRA7xx host bridge driver:
   - Fix return value in case of error (Christophe JAILLET)

  Xilinx AXI host bridge driver:
   - Fix return value in case of error (Christophe JAILLET)

  Miscellaneous:
   - Make bus_attr_resource_alignment static (Ben Dooks)
   - Include <asm/dma.h> for isa_dma_bridge_buggy (Ben Dooks)
   - MAINTAINERS: Add file patterns for PCI device tree bindings (Geert Uytterhoeven)
   - Make host bridge drivers explicitly non-modular (Paul Gortmaker)"

* tag 'pci-v4.8-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (125 commits)
  PCI: xgene: Make explicitly non-modular
  PCI: thunder-pem: Make explicitly non-modular
  PCI: thunder-ecam: Make explicitly non-modular
  PCI: tegra: Make explicitly non-modular
  PCI: rcar-gen2: Make explicitly non-modular
  PCI: rcar: Make explicitly non-modular
  PCI: mvebu: Make explicitly non-modular
  PCI: layerscape: Make explicitly non-modular
  PCI: keystone: Make explicitly non-modular
  PCI: hisi: Make explicitly non-modular
  PCI: generic: Make explicitly non-modular
  PCI: designware-plat: Make it explicitly non-modular
  PCI: artpec6: Make explicitly non-modular
  PCI: armada8k: Make explicitly non-modular
  PCI: artpec: Add PCI_MSI_IRQ_DOMAIN dependency
  PCI: Add ACS quirk for Solarflare SFC9220
  arm64: dts: marvell: Add Aardvark PCIe support for Armada 3700
  PCI: aardvark: Add Aardvark PCI host controller driver
  dt-bindings: add DT binding for the Aardvark PCIe controller
  PCI: tegra: Program PADS_REFCLK_CFG* registers with per-SoC values
  ...
2016-08-02 17:12:29 -04:00
Bjorn Helgaas
9454c23852 Merge branch 'pci/msi-affinity' into next
Conflicts:
	drivers/nvme/host/pci.c
2016-08-01 12:34:01 -05:00
David S. Miller
9bc4a1cca6 Merge branch '10GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/next-queue
Jeff Kirsher says:

====================
10GbE Intel Wired LAN Driver Updates 2016-07-22

This series contains updates to ixgbe and ixgbevf only.

Emil fixes the NACK check in ixgbevf_set_uc_addr_vf() for instances where
the index is not equal to zero.  Fixes an issue where mac->ops.setup_fc
can be NULL for backplanes which can cause the driver to crash on load.

Don fixes the second parameter of the LED functions, which is the index to
the LED we are interested in affecting.  Fixed variable to store register
reads to unsigned integer.  Adds support for the new x553 hardware into
ixgbevf.  Fixed a missing rtnl lock around ixgbevf_reinit_locked().
Fixed an issue where in ixgbevf_reset_subtask() was not verifying that
the port has been removed.  Cleans up the initial crosstalk fix, since
the SFP that indicates the presence of a SFP+ module changes between
hardware types.

Babu Moger fixes typo in freeing IRQ, since the array subscript increments
after the execution of the statement.

Wei Yongjun adds the missing destroy_workqueue() before returning from
ixgbe_init_module() in the error handling case.

Tony adds range checking for setting the MTU from the VF, where the PF can
return a NACK but this was not passed on to the VF, so propagate the
results from the PF to the VF so errors can be reported.  Consolidates
mailbox read and write functions, since the recent changes to
ixgbevf_write_msg_read_ack(), other functions are performing the same
operations done here.

Colin Ian King removes a redundant check on ret_val, since ret_val has
not changed since the previous check.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-25 11:26:48 -07:00
David S. Miller
da54bb13c0 Merge branch '40GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/next-queue
Conflicts:
	drivers/net/ethernet/intel/i40e/i40e_main.c

Jeff Kirsher says:

====================
40GbE Intel Wired LAN Driver Updates 2016-07-22

This series contains updates to i40e and i40evf.

Heinrich Schuchardt found a possible null pointer being dereferenced in
i40e_debug_aq(), fixed the issue by doing the variable assignment after
we are sure the pointer is not null.

Avinash fixed an issue when link was down, we were not showing the
correct advertised link modes.

Mitch cleans up a useless initializer since the variable is assigned
right away.  Refactors the receive filter handling to properly track
filter adds and deletes so the driver will not lose filters during a
reset and up/down cycles.  Also added a tracking mechanism so that the
driver knows when to enter and leave promiscuous mode.

Catherine removes a device id which is not needed (or used).  Moves
a mutex lock since we need to lock the client list around the
i40e_client_release() call to prevent the release from interrupting
the client instances while they are being added.

Joshua adds Hyper-V specific VF device ids.

Amitoj Kaur Chawla cleans up a redundant memset() call before a memcpy().

Stefan Assmann adds the missing link advertise for some x710 NICs.

Tushar Dave fixes and issue found on SPARC, where a PF reset clears MAC
filters and if a platform-specific MAC address is used, the driver has
to explicitly write default MAC address to MAC filters otherwise all
incoming traffic destined to the default MAC address will be dropped
after reset.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-25 10:43:07 -07:00
David S. Miller
de0ba9a0d8 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Just several instances of overlapping changes.

Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-24 00:53:32 -04:00
Don Skidmore
aac9e053f1 ixgbe: cleanup crosstalk fix
This patch address a few issues with the initial crosstalk fix.  Most
important of which is the SDP that indicates the presents of a SFP+
module changes between HW types.  With this change that is taken in
to consideration

It also moves the check closer to the base code that checks link.  This
makes it so we only need to do the check in one spot.

Signed-off-by: Don Skidmore <donald.c.skidmore@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-07-22 02:10:22 -07:00
Colin Ian King
fdb359ee44 ixgbe: remove redundant check on ret_val
The last check on ret_val is redundant since ret_val has not changed
since the previous check, so remove it as it is extraneous.

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-07-22 02:04:28 -07:00
Tony Nguyen
221c556acb ixgbevf: Commonize mailbox write/read
With changes to ixgbevf_write_msg_read_ack(), other functions are
performing the same operations done here; change those functions to
utilize ixgbevf_write_msg_read_ack().

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>
2016-07-22 01:56:54 -07:00
Tony Nguyen
6a11e52b69 ixgbevf: Add range checking for setting MTU
Currently when setting the VF's MTU, the PF can return a NACK but this
isn't passed on to the VF.  Propagate the results from the PF to the VF
so errors can be reported.

In ixgbevf_change_mtu, return an error and reject the change.

For ixgbevf_configure_rx, log the error for debugging purposes since
the function is buried in a series of Rx config routines that are void.

Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-07-22 01:52:08 -07:00
Don Skidmore
6e469ed03e ixgbevf: Protect ixgbevf_reset_subtask from remove event
In ixgbevf_reset_subtask We weren't verifying that the port haven't
been removed, we are with this patch.

Signed-off-by: Don Skidmore <donald.c.skidmore@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-07-22 01:43:27 -07:00
Wei Yongjun
6b83687987 ixgbe: Add missing destroy_workqueue() on error in ixgbe_init_module()
Add the missing destroy_workqueue() before return from
ixgbe_init_module() in the error handling case.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-07-22 01:38:57 -07:00
Don Skidmore
8e8247ab98 ixgbevf: Add lock around ixgbevf_reinit_locked call
The function ixgbevf_reinit_locked() assumes you have the rtnl lock
however we didn't when calling from the service task.  This patch
corrects that.

Signed-off-by: Don Skidmore <donald.c.skidmore@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-07-22 01:35:06 -07:00
Emil Tantilov
abf76d76c5 ixgbe: fix setup_fc for x550em
mac->ops.setup_fc can be null for backplanes which can cause the driver
to crash on load.

Reported-by: Patrick McLean <patrickm@gaikai.com>
Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-07-22 01:31:30 -07:00
Don Skidmore
1d94f987f5 ixgbevf: add VF support for new hardware
This patch add VF support for the new X553 hardware.

Signed-off-by: Don Skidmore <donald.c.skidmore@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-07-22 01:27:47 -07:00
Babu Moger
90c6f87786 ixgbe: Fix minor typo while freeing irq
The array subscript increments after the execution of the statement.
So there is no issue here. However it helps to read the code better.

Signed-off-by: Babu Moger <babu.moger@oracle.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-07-22 01:24:16 -07:00
Don Skidmore
310ea1236c ixgbe: Change register variable to unsigned
I noticed this variable used for register reads wasn't an unsigned
so this patch corrects that.  I don't believe this was causing any
issue as is but this is more consistent with the rest of the driver.

Signed-off-by: Don Skidmore <donald.c.skidmore@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-07-22 01:19:34 -07:00
Don Skidmore
9f8fe731b8 ixgbevf: bump version number
Bump the version number to more closely match the function included
in the driver.

Signed-off-by: Don Skidmore <donald.c.skidmore@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-07-22 01:16:13 -07:00
Don Skidmore
003287e0f0 ixgbevf: Correct parameter sent to LED function
The second parameter of these functions is the index to the led we
are interested in affecting.  However we were mistakenly passing
the offset in the register.  This patch corrects that and adds some
bonds checking which would hopefully make bugs like this more noticeable
in the future.

Signed-off-by: Don Skidmore <donald.c.skidmore@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-07-22 01:12:58 -07:00
Emil Tantilov
fc355e078a ixgbevf: fix NACK check in ixgbevf_set_uc_addr_vf()
Fix the NACK check in ixgbevf_set_uc_addr_vf() for instances where
index != 0.

Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-07-22 00:49:32 -07:00
Tushar Dave
b1b15df592 i40e: Explicitly write platform-specific mac address after PF reset
i40e PF reset clears mac filters. If platform-specific mac address
is used, driver has to explicitly write default mac address to mac
filters otherwise all incoming traffic destined to default mac
address will be dropped after reset.

This issue was found on SPARC while toggling i40e ntuple via ethtool.

Signed-off-by: Tushar Dave <tushar.n.dave@oracle.com>
Acked-by: Sowmini Varadhan <sowmini.varadhan@oracle.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-07-22 00:07:06 -07:00
Stefan Assmann
9169827b7a i40e: add missing link advertise setting
Adding the missing link advertise for some X710 NICs.
This can be observed by simply calling ethtool on the interface.
root@rhel7:~ # ethtool eth0
Settings for eth0:
        Supported ports: [ FIBRE ]
        Supported link modes:   10000baseT/Full
        Supported pause frame use: Symmetric
        Supports auto-negotiation: No
        Advertised link modes:  Not reported
[...]
With fix applied.
root@rhel7:~ # ethtool eth0
Settings for eth0:
        Supported ports: [ FIBRE ]
        Supported link modes:   10000baseT/Full
        Supported pause frame use: Symmetric
        Supports auto-negotiation: No
        Advertised link modes:  10000baseT/Full
[...]

Signed-off-by: Stefan Assmann <sassmann@kpanic.de>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-07-22 00:07:06 -07:00
Catherine Sullivan
cd3be169a5 i40e: Move the mutex lock in i40e_client_unregister
We need to lock the client list around the i40e_client_release call to
prevent the release from interrupting the client instances while they are
being added.

Change-Id: I99993f20179aaf8730207833e7d0869d2ccffa1d
Signed-off-by: Catherine Sullivan <catherine.sullivan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-07-22 00:07:06 -07:00
Amitoj Kaur Chawla
4dec7d045d i40e: Remove redundant memset
Remove redundant call to memset before a call to memcpy.

The Coccinelle semantic patch used to make this change is as follows:
@@
expression e1,e2,e3,e4;
@@

- memset(e1,e2,e3);
  memcpy(e1,e4,e3);

Signed-off-by: Amitoj Kaur Chawla <amitoj1606@gmail.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-07-22 00:07:05 -07:00
Bimmy Pujari
ae33256c55 i40e/i40evf-bump version to 1.6.11
Signed-off-by: Bimmy Pujari <bimmy.pujari@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-07-22 00:07:05 -07:00
Mitch Williams
c3c7ea27be i40e: refactor Rx filter handling
Properly track filter adds and deletes so the driver doesn't lose filters
during resets and up/down cycles. Add a tracking mechanism so that the
driver knows when to enter and leave promiscuous mode.

Implement a simple state machine so the driver can track the status of
each filter throughout its lifecycle. Properly manage the overflow promiscuous
state for the each VSI, and provide a way for the driver to detect when to exit
overflow promiscuous mode.

Remove all possible default MAC filters that the firmware may have set up so
that the driver can manage these correctly, particularly when VLANs come into
play. Remove the LAA flag for filters; instead just send whatever we get through
set_mac to the firmware as the LAA for wakeup purposes.

Finally, add the state of each filter to debugfs output so we can see what's
going on inside the driver's pointy little head.

Change-ID: I97c5e366fac2254fa01eaff4f65c0af61dcf2e1f
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-07-22 00:07:04 -07:00
Joshua Hay
9287141292 i40evf: add hyperv dev ids
This patch adds the Hyper-V specific VF device ids.

Change-ID: I9c4fe6d8dfd34f7f68ebc9fdae225c8768439c89
Signed-off-by: Joshua Hay <joshua.a.hay@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-07-22 00:07:04 -07:00
Catherine Sullivan
8b60151029 i40e: Remove device ID 0x37D4
This device ID is not needed, so take it out.

Change-ID: I148d29f68a1f58b03980ecd83047a1b440f4f74d
Signed-off-by: Catherine Sullivan <catherine.sullivan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-07-22 00:07:04 -07:00
Mitch Williams
88dc9e6fed i40e/i40evf: remove useless initializer
This initializer isn't needed because the variable is assigned right
away.

Change-ID: I6ce3edb3f4e0364db248a7a0bcc62ca95c01d941
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-07-22 00:07:03 -07:00
Avinash Dayanand
2853704f11 i40e: Fix to show correct Advertised Link Modes when link is down
When link is down, Advertised Link Modes was wrongly displaying full
supported link modes instead of Advertised link mode. Added conditional
checks in order to make sure correct Advertised link modes are
displayed when the link is down.

Change-ID: I8a61413f9ee174149c7a33157b5f0b0a8da9842d
Signed-off-by: Avinash Dayanand <avinash.dayanand@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-07-22 00:07:03 -07:00
Heinrich Schuchardt
cd95672216 i40e: avoid null pointer dereference
In function i40e_debug_aq parameter desc is assumed to be
possibly NULL. Do not dereference it before checking the
value.

Fixes: f905dd62be ("i40e/i40evf: add max buf len to aq debug print helper")
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-07-22 00:07:02 -07:00
Jacob Keller
5264cc63ba fm10k: bump version number
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Krishneil Singh <Krishneil.k.singh@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-07-20 15:22:17 -07:00
Jacob Keller
30e23b711c fm10k: return proper error code when pci_enable_msix_range fails
The pci_enable_msix_range() function returns a positive value of the
number of allocated vectors if it succeeds. On failure it returns
a negative error code. Return this code properly so that the error
message printed by the driver will show the actual error code instead of
being masked by -ENOMEM.

Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Krishneil Singh <Krishneil.k.singh@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-07-20 15:22:16 -07:00
Jacob Keller
0356b23bcc fm10k: force link to remain down for at least a second on resume events
When we resume from an AER recovery with many active VFs, the PF sees
many spurious link up and link down events. Prevent this by delaying
link down for at least one second after the resume event.

Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Krishneil Singh <Krishneil.k.singh@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-07-20 15:22:16 -07:00
Jacob Keller
0afd20e557 fm10k: implement request_lport_map pointer
If the fm10k interface is brought up, but the switch manager software is
not running, the driver will continuously request the lport map every
few seconds in the base driver watchdog routine. Eventually after
several minutes the switch mailbox Tx fifo will fill up and the mailbox
will timeout, resulting in a reset. This reset will appear as if for no
reason, and occurs regularly every few minutes until the switch manager
software is loaded.

Prevent this from happening by only requesting the lport map after we've
verified the switch mailbox is tx_ready. In order to simplify code logic
and reduce code duplication, implement this as a new function pointer
"mac.ops.request_lport_map" which the VF will not implement. Otherwise,
we have to duplicate the tx_ready check outside of
fm10k_get_host_state_generic, or re-implement most of
fm10k_get_host_state_generic in the pf version.

The resulting code is simpler and easier to understand, and prevents the
PF from continuously requesting lport map and filling the Tx fifo of
a switch mailbox that isn't ready.

Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Krishneil Singh <Krishneil.k.singh@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-07-20 15:22:15 -07:00
Jacob Keller
9d7dbf0604 fm10k: check if PCIe link is restored
Sometimes, a VF driver will lose PCIe address access, such as due to
a PF FLR event. In fm10k_detach_subtask, poll and check whether the
PCIe register space is active again and restore the device when it has.

Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Krishneil Singh <Krishneil.k.singh@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-07-20 15:22:15 -07:00
Jacob Keller
0d63a8f50e fm10k: enable bus master after every reset
If an FLR occurs, VF devices will be knocked out of bus master mode, and
the driver will be unable to recover from the reset properly, resulting
in malicious driver events and an infinite reset loop. In the normal
case, the bus master mode will already be enabled and this call will
essentially be a no-op. Since we're doing this every reset, it is
possible we could remove the other calls to pci_set_master() but it
seems not harmful to just leave them in place.

Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Krishneil Singh <Krishneil.k.singh@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-07-20 15:22:15 -07:00
Jacob Keller
7756c08b87 fm10k: use common flow for suspend and resume
Continuing the effort to commonize the similar suspend/resume flows,
finish up by using the new fm10k_handle_suspand and fm10k_handle_resume
functions for the standard suspend/resume flow.

Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Krishneil Singh <Krishneil.k.singh@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-07-20 15:22:14 -07:00