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path: root/drivers/pci/vpd.c
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2018-08-15PCI/VPD: Check for VPD access completion before checking for timeoutBert Kenward1-2/+5
Previously we checked the timeout before checking the VPD access completion bit. On a very heavily loaded system this can cause VPD access to timeout. Check the completion bit before checking the timeout. Signed-off-by: Bert Kenward <bkenward@solarflare.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2018-04-07Merge tag 'pci-v4.17-changes' of ↵Linus Torvalds1-2/+583
git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci Pull PCI updates from Bjorn Helgaas: - move pci_uevent_ers() out of pci.h (Michael Ellerman) - skip ASPM common clock warning if BIOS already configured it (Sinan Kaya) - fix ASPM Coverity warning about threshold_ns (Gustavo A. R. Silva) - remove last user of pci_get_bus_and_slot() and the function itself (Sinan Kaya) - add decoding for 16 GT/s link speed (Jay Fang) - add interfaces to get max link speed and width (Tal Gilboa) - add pcie_bandwidth_capable() to compute max supported link bandwidth (Tal Gilboa) - add pcie_bandwidth_available() to compute bandwidth available to device (Tal Gilboa) - add pcie_print_link_status() to log link speed and whether it's limited (Tal Gilboa) - use PCI core interfaces to report when device performance may be limited by its slot instead of doing it in each driver (Tal Gilboa) - fix possible cpqphp NULL pointer dereference (Shawn Lin) - rescan more of the hierarchy on ACPI hotplug to fix Thunderbolt/xHCI hotplug (Mika Westerberg) - add support for PCI I/O port space that's neither directly accessible via CPU in/out instructions nor directly mapped into CPU physical memory space. This is fairly intrusive and includes minor changes to interfaces used for I/O space on most platforms (Zhichang Yuan, John Garry) - add support for HiSilicon Hip06/Hip07 LPC I/O space (Zhichang Yuan, John Garry) - use PCI_EXP_DEVCTL2_COMP_TIMEOUT in rapidio/tsi721 (Bjorn Helgaas) - remove possible NULL pointer dereference in of_pci_bus_find_domain_nr() (Shawn Lin) - report quirk timings with dev_info (Bjorn Helgaas) - report quirks that take longer than 10ms (Bjorn Helgaas) - add and use Altera Vendor ID (Johannes Thumshirn) - tidy Makefiles and comments (Bjorn Helgaas) - don't set up INTx if MSI or MSI-X is enabled to align cris, frv, ia64, and mn10300 with x86 (Bjorn Helgaas) - move pcieport_if.h to drivers/pci/pcie/ to encapsulate it (Frederick Lawler) - merge pcieport_if.h into portdrv.h (Bjorn Helgaas) - move workaround for BIOS PME issue from portdrv to PCI core (Bjorn Helgaas) - completely disable portdrv with "pcie_ports=compat" (Bjorn Helgaas) - remove portdrv link order dependency (Bjorn Helgaas) - remove support for unused VC portdrv service (Bjorn Helgaas) - simplify portdrv feature permission checking (Bjorn Helgaas) - remove "pcie_hp=nomsi" parameter (use "pci=nomsi" instead) (Bjorn Helgaas) - remove unnecessary "pcie_ports=auto" parameter (Bjorn Helgaas) - use cached AER capability offset (Frederick Lawler) - don't enable DPC if BIOS hasn't granted AER control (Mika Westerberg) - rename pcie-dpc.c to dpc.c (Bjorn Helgaas) - use generic pci_mmap_resource_range() instead of powerpc and xtensa arch-specific versions (David Woodhouse) - support arbitrary PCI host bridge offsets on sparc (Yinghai Lu) - remove System and Video ROM reservations on sparc (Bjorn Helgaas) - probe for device reset support during enumeration instead of runtime (Bjorn Helgaas) - add ACS quirk for Ampere (née APM) root ports (Feng Kan) - add function 1 DMA alias quirk for Marvell 88SE9220 (Thomas Vincent-Cross) - protect device restore with device lock (Sinan Kaya) - handle failure of FLR gracefully (Sinan Kaya) - handle CRS (config retry status) after device resets (Sinan Kaya) - skip various config reads for SR-IOV VFs as an optimization (KarimAllah Ahmed) - consolidate VPD code in vpd.c (Bjorn Helgaas) - add Tegra dependency on PCI_MSI_IRQ_DOMAIN (Arnd Bergmann) - add DT support for R-Car r8a7743 (Biju Das) - fix a PCI_EJECT vs PCI_BUS_RELATIONS race condition in Hyper-V host bridge driver that causes a general protection fault (Dexuan Cui) - fix Hyper-V host bridge hang in MSI setup on 1-vCPU VMs with SR-IOV (Dexuan Cui) - fix Hyper-V host bridge hang when ejecting a VF before setting up MSI (Dexuan Cui) - make several structures static (Fengguang Wu) - increase number of MSI IRQs supported by Synopsys DesignWare bridges from 32 to 256 (Gustavo Pimentel) - implemented multiplexed IRQ domain API and remove obsolete MSI IRQ API from DesignWare drivers (Gustavo Pimentel) - add Tegra power management support (Manikanta Maddireddy) - add Tegra loadable module support (Manikanta Maddireddy) - handle 64-bit BARs correctly in endpoint support (Niklas Cassel) - support optional regulator for HiSilicon STB (Shawn Guo) - use regulator bulk API for Qualcomm apq8064 (Srinivas Kandagatla) - support power supplies for Qualcomm msm8996 (Srinivas Kandagatla) * tag 'pci-v4.17-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (123 commits) MAINTAINERS: Add John Garry as maintainer for HiSilicon LPC driver HISI LPC: Add ACPI support ACPI / scan: Do not enumerate Indirect IO host children ACPI / scan: Rename acpi_is_serial_bus_slave() for more general use HISI LPC: Support the LPC host on Hip06/Hip07 with DT bindings of: Add missing I/O range exception for indirect-IO devices PCI: Apply the new generic I/O management on PCI IO hosts PCI: Add fwnode handler as input param of pci_register_io_range() PCI: Remove __weak tag from pci_register_io_range() MAINTAINERS: Add missing /drivers/pci/cadence directory entry fm10k: Report PCIe link properties with pcie_print_link_status() net/mlx5e: Use pcie_bandwidth_available() to compute bandwidth net/mlx5: Report PCIe link properties with pcie_print_link_status() net/mlx4_core: Report PCIe link properties with pcie_print_link_status() PCI: Add pcie_print_link_status() to log link speed and whether it's limited PCI: Add pcie_bandwidth_available() to compute bandwidth available to device misc: pci_endpoint_test: Handle 64-bit BARs properly PCI: designware-ep: Make dw_pcie_ep_reset_bar() handle 64-bit BARs properly PCI: endpoint: Make sure that BAR_5 does not have 64-bit flag set when clearing PCI: endpoint: Make epc->ops->clear_bar()/pci_epc_clear_bar() take struct *epf_bar ...
2018-04-04Merge branch 'pci/vpd'Bjorn Helgaas1-0/+573
- consolidate VPD code in vpd.c (Bjorn Helgaas) * pci/vpd: PCI/VPD: Move VPD structures to vpd.c PCI/VPD: Move VPD quirks to vpd.c PCI/VPD: Move VPD sysfs code to vpd.c PCI/VPD: Move VPD access code to vpd.c
2018-03-19PCI: Tidy commentsBjorn Helgaas1-2/+1
Remove pointless comments that tell us the file name, remove blank line comments, follow multi-line comment conventions. No functional change intended. Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2018-03-19PCI/VPD: Move VPD structures to vpd.cBjorn Helgaas1-0/+17
The VPD-related structures are only used in vpd.c, so move them from drivers/pci/pci.h to vpd.c. No functional change intended. Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2018-03-19PCI/VPD: Move VPD quirks to vpd.cBjorn Helgaas1-0/+120
Move the VPD-related quirks from quirks.c to vpd.c, which removes the need for struct pci_vpd outside vpd.c. The goal is to encapsulate all the VPD code and structures in vpd.c. No functional change intended. Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2018-03-19PCI/VPD: Move VPD sysfs code to vpd.cBjorn Helgaas1-0/+67
Move the VPD-related sysfs code from pci-sysfs.c to vpd.c. This follows the pattern of pcie_aspm_create_sysfs_dev_files(). The goal is to encapsulate all the VPD code and structures in vpd.c. No functional change intended. Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2018-03-19PCI/VPD: Move VPD access code to vpd.cBjorn Helgaas1-0/+369
Move the VPD-related code from access.c to vpd.c. The goal is to encapsulate all the VPD code and structures in vpd.c. No functional change intended. Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2018-01-26PCI: Add SPDX GPL-2.0 when no license was specifiedBjorn Helgaas1-0/+1
b24413180f56 ("License cleanup: add SPDX GPL-2.0 license identifier to files with no license") added SPDX GPL-2.0 to several PCI files that previously contained no license information. Add SPDX GPL-2.0 to all other PCI files that did not contain any license information and hence were under the default GPL version 2 license of the kernel. Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2011-11-01pci: Fix files needing export.h for EXPORT_SYMBOL/THIS_MODULEPaul Gortmaker1-0/+1
They were implicitly getting it from device.h --> module.h but we want to clean that up. So add the minimal header for these macros. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2010-02-28pci: Add helper to search for VPD keywordsMatt Carlson1-0/+18
This patch adds the pci_vpd_find_info_keyword() helper function to find information field keywords within read-only and read-write large resource data type sections. Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Signed-off-by: Michael Chan <mchan@broadcom.com> Acked-by: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-28pci: Add helper to find a VPD resource data typeMatt Carlson1-0/+43
This patch adds the pci_vpd_find_tag() helper function to find VPD resource data types in a buffer. Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Signed-off-by: Michael Chan <mchan@broadcom.com> Acked-by: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: David S. Miller <davem@davemloft.net>
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