Lines Matching +full:msi +full:- +full:specifier
1 /* SPDX-License-Identifier: GPL-2.0 */
7 * Copyright 1997--1999 Martin Mares <mj@ucw.cz>
59 * The PCI interface treats multi-function devices as independent
67 * In the interest of not exposing interfaces to user-space unnecessarily,
68 * the following kernel-only defines are being added here.
79 unsigned char number; /* PCI_SLOT(pci_dev->devfn) */
85 return kobject_name(&slot->kobj); in pci_slot_name()
96 /* #0-5: standard PCI resources */
98 PCI_STD_RESOURCE_END = PCI_STD_RESOURCES + PCI_STD_NUM_BARS - 1,
103 /* Device-specific resources */
106 PCI_IOV_RESOURCE_END = PCI_IOV_RESOURCES + PCI_SRIOV_NUM_BARS - 1,
109 /* PCI-to-PCI (P2P) bridge windows */
126 PCI_BRIDGE_RESOURCE_NUM - 1,
136 * enum pci_interrupt_pin - PCI INTx interrupt values
178 #define PCI_POWER_ERROR ((pci_power_t __force) -1)
223 /* INTX_DISABLE in PCI_COMMAND register disables MSI too */
229 /* Flag for quirk use to store if quirk-specific ACS is enabled */
231 /* Use a PCIe-to-PCI bridge alias even if !pci_is_pcie */
235 /* Do not use PM reset even if device advertises NoSoftRst- */
239 /* A non-root bridge where translation occurs, stop alias search here */
245 /* Device does honor MSI masking despite saying otherwise */
322 struct list_head bus_list; /* Node in per-bus list */
326 void *sysdata; /* Hook for sys-specific extension */
335 unsigned int class; /* 3 bytes: (base,sub,prog-if) */
348 u8 msi_cap; /* MSI capability offset */
349 u8 msix_cap; /* MSI-X capability offset */
361 or supports 64-bit transfers. */
366 this is D0-D3, D0 being fully
382 unsigned int skip_bus_pm:1; /* Internal: Skip bus-level PM */
389 unsigned int d3hot_delay; /* D3hot->D0 transition time in ms */
390 unsigned int d3cold_delay; /* D3cold->D0 transition time in ms */
399 unsigned int eetlp_prefix_path:1; /* End-to-End TLP Prefix */
418 unsigned int pref_64_window:1; /* Pref mem window is 64-bit */
419 unsigned int multifunction:1; /* Multi-function device */
422 unsigned int no_msi:1; /* May not use MSI */
423 unsigned int no_64bit_msi:1; /* May only use 32-bit MSIs */
434 unsigned int is_msi_managed:1; /* MSI release via devres installed */
452 * device as "external-facing". An external-facing device is
495 struct pci_sriov *sriov; /* PF: SR-IOV info */
531 if (dev->is_virtfn) in pci_physfn()
532 dev = dev->physfn; in pci_physfn()
544 return (pdev->error_state != pci_channel_io_normal); in pci_channel_offline()
549 * Group number is limited to a 16-bit value, therefore (int)-1 is
551 * value indicating ->domain_nr is not set by the driver (and
555 #define PCI_DOMAIN_NR_NOT_SET (-1)
581 unsigned int msi_domain:1; /* Bridge wants MSI domain */
596 return (void *)bridge->private; in pci_host_bridge_priv()
626 * This does not apply to ACPI _CRS windows, even with the _DEC subtractive-
652 void *sysdata; /* Hook for sys-specific extension */
679 return PCI_DEVID(dev->bus->number, dev->devfn); in pci_dev_id()
683 * Returns true if the PCI bus is root (behind host-PCI bridge),
686 * Some code assumes that "bus->self == NULL" means that bus is a root bus.
687 * This is incorrect because "virtual" buses added for SR-IOV (via
688 * virtfn_add_bus()) have "bus->self == NULL" but are not root buses.
692 return !(pbus->parent); in pci_is_root_bus()
696 * pci_is_bridge - check if the PCI device is a bridge
704 return dev->hdr_type == PCI_HEADER_TYPE_BRIDGE || in pci_is_bridge()
705 dev->hdr_type == PCI_HEADER_TYPE_CARDBUS; in pci_is_bridge()
709 list_for_each_entry(dev, &bus->devices, bus_list) \
715 if (pci_is_root_bus(dev->bus)) in pci_upstream_bridge()
718 return dev->bus->self; in pci_upstream_bridge()
724 return pci_dev->msi_enabled || pci_dev->msix_enabled; in pci_dev_msi_enabled()
739 /* Translate above to generic errno for passing back through non-PCI code */
747 return -ENOENT; in pcibios_err_to_errno()
749 return -ENOTTY; in pcibios_err_to_errno()
751 return -ENODEV; in pcibios_err_to_errno()
753 return -EFAULT; in pcibios_err_to_errno()
755 return -EIO; in pcibios_err_to_errno()
757 return -ENOSPC; in pcibios_err_to_errno()
760 return -ERANGE; in pcibios_err_to_errno()
763 /* Low-level architecture-dependent routines */
800 * PCI Error Recovery System (PCI-ERS). If a PCI device driver provides
834 /* MMIO has been re-enabled, but not DMA */
852 * struct pci_driver - PCI driver structure
873 * pulled out of a hot-pluggable slot).
882 * Useful for enabling wake-on-lan (NIC) or changing
887 * @sriov_set_msix_vec_count: PF Driver callback to change number of MSI-X
889 * This will change MSI-X Table Size in the VF Message Control
892 * MSI-X vectors available for distribution to the VFs.
893 * @err_handler: See Documentation/PCI/pci-error-recovery.rst
910 const struct pci_device_id *id_table; /* Must be non-NULL for probe to be called */
912 void (*remove)(struct pci_dev *dev); /* Device removed (NULL if not a hot-plug capable driver) */
933 * PCI_DEVICE - macro used to describe a specific PCI device
946 * PCI_DEVICE_DRIVER_OVERRIDE - macro used to describe a PCI device with
961 * PCI_DRIVER_OVERRIDE_DEVICE_VFIO - macro used to describe a VFIO
975 * PCI_DEVICE_SUB - macro used to describe a specific PCI device with subsystem
989 * PCI_DEVICE_CLASS - macro used to describe a specific PCI device class
990 * @dev_class: the class, subclass, prog-if triple for this device
1003 * PCI_VDEVICE - macro used to describe a specific PCI device in short form
1017 * PCI_DEVICE_DATA - macro used to describe a specific PCI device in very short form
1042 #define PCI_IRQ_MSI (1 << 1) /* Allow MSI interrupts */
1043 #define PCI_IRQ_MSIX (1 << 2) /* Allow MSI-X interrupts */
1044 #define PCI_IRQ_AFFINITY (1 << 3) /* Auto-assign affinity */
1061 PCIE_BUS_SAFE, /* Use largest MPS boot-time devices support */
1070 /* Do NOT directly access these two variables, unless you are arch-specific PCI
1082 /* Architecture-specific versions may override this (weak) */
1146 #define dev_is_pci(d) ((d)->bus == &pci_bus_type)
1147 #define dev_is_pf(d) ((dev_is_pci(d) ? to_pci_dev(d)->is_physfn : false))
1239 /* User-space driven config access */
1260 return !pdev->broken_intx_masking; in pci_intx_mask_supported()
1265 return (atomic_read(&pdev->enable_cnt) > 0); in pci_is_enabled()
1270 return pdev->is_managed; in pci_is_managed()
1322 return max(ilog2(bytes), 20) - 20; in pci_rebar_bytes_to_size()
1384 /* Helper functions for low-level code (drivers/pci/setup-[bus,res].c) */
1459 pcibios_resource_to_bus(pdev->bus, ®ion, &pdev->resource[bar]); in pci_bus_address()
1463 /* Proper probing supporting hot-pluggable devices */
1474 * module_pci_driver() - Helper macro for registering a PCI driver
1485 * builtin_pci_driver() - Helper macro for registering a PCI driver
1523 * into the device's MSI-X table and must be handled by some
1565 static inline int pci_msi_vec_count(struct pci_dev *dev) { return -ENOSYS; } in pci_msi_vec_count()
1567 static inline int pci_msix_vec_count(struct pci_dev *dev) { return -ENOSYS; } in pci_msix_vec_count()
1572 { return -ENOSYS; } in pci_enable_msi()
1575 { return -ENOSYS; } in pci_enable_msix_range()
1578 { return -ENOSYS; } in pci_enable_msix_exact()
1585 if ((flags & PCI_IRQ_LEGACY) && min_vecs == 1 && dev->irq) in pci_alloc_irq_vectors_affinity()
1587 return -ENOSPC; in pci_alloc_irq_vectors_affinity()
1597 return -EINVAL; in pci_irq_vector()
1598 return dev->irq; in pci_irq_vector()
1608 * pci_irqd_intx_xlate() - Translate PCI INTx value to an IRQ domain hwirq
1611 * @intspec: the interrupt specifier data from the DT
1616 * Translate a PCI INTx interrupt number from device tree in the range 1-4, as
1618 * 0-3 suitable for use in a 4 entry IRQ domain. That is, subtract one from the
1621 * Returns 0 on success, or -EINVAL if the interrupt specifier is out of range.
1633 return -EINVAL; in pci_irqd_intx_xlate()
1635 *out_hwirq = intx - PCI_INTERRUPT_INTA; in pci_irqd_intx_xlate()
1685 { return -EINVAL; } in pci_enable_ptm()
1720 return bus->domain_nr; in pci_domain_nr()
1810 static inline int pci_enable_device(struct pci_dev *dev) { return -EIO; } in pci_enable_device()
1812 static inline int pcim_enable_device(struct pci_dev *pdev) { return -EIO; } in pcim_enable_device()
1814 { return -EBUSY; } in pci_assign_resource()
1851 { return -EIO; } in pci_request_regions()
1856 { return -EINVAL; } in pci_register_io_range()
1858 static inline unsigned long pci_address_to_pio(phys_addr_t addr) { return -1; } in pci_address_to_pio()
1882 { return -EINVAL; } in pci_irqd_intx_xlate()
1891 return -EINVAL; in pci_irq_vector()
1899 return -ENOSPC; in pci_alloc_irq_vectors_affinity()
1911 /* Include architecture-dependent settings and functions */
1916 * pci_mmap_resource_range() maps a specific BAR, and vm->vm_pgoff
1930 #define pci_iobar_pfn(pdev, bar, vma) (-EINVAL)
1943 #define pci_resource_start(dev, bar) ((dev)->resource[(bar)].start)
1944 #define pci_resource_end(dev, bar) ((dev)->resource[(bar)].end)
1945 #define pci_resource_flags(dev, bar) ((dev)->resource[(bar)].flags)
1949 (pci_resource_end((dev), (bar)) - \
1953 * Similar to the helpers above, these manipulate per-pci_dev
1954 * driver-specific data. They are really just a wrapper around
1959 return dev_get_drvdata(&pdev->dev); in pci_get_drvdata()
1964 dev_set_drvdata(&pdev->dev, data); in pci_set_drvdata()
1969 return dev_name(&pdev->dev); in pci_name()
1978 * For at least a part of these bugs we need a work-around, so both
1979 * generic (drivers/pci/quirks.c) and per-architecture code can define
2014 ".long " #hook " - . \n" \
2139 /* Architecture-specific versions may override these (weak) */
2194 return -ENOSYS; in pci_iov_virtfn_bus()
2198 return -ENOSYS; in pci_iov_virtfn_devfn()
2203 return -ENOSYS; in pci_iov_vf_id()
2209 return ERR_PTR(-EINVAL); in pci_iov_get_pf_drvdata()
2213 { return -ENODEV; } in pci_enable_sriov()
2218 return -ENODEV; in pci_iov_sysfs_link()
2222 return -ENOSYS; in pci_iov_add_virtfn()
2246 * pci_pcie_cap - get the saved PCIe capability offset
2258 return dev->pcie_cap; in pci_pcie_cap()
2262 * pci_is_pcie - check if the PCI device is PCI Express capable
2273 * pcie_caps_reg - get the PCIe Capabilities Register
2278 return dev->pcie_flags_reg; in pcie_caps_reg()
2282 * pci_pcie_type - get the PCIe device/port type
2291 * pcie_find_root_port - Get the PCIe root port device
2320 #define PCI_VPD_LTIN_RO_DATA 0x10 /* Read-Only Data */
2321 #define PCI_VPD_LTIN_RW_DATA 0x11 /* Read-Write Data */
2334 * pci_vpd_alloc - Allocate buffer and read VPD into it
2343 * pci_vpd_find_id_string - Locate id string in VPD
2348 * Returns the index of the id string or -ENOENT if not found.
2353 * pci_vpd_find_ro_info_keyword - Locate info field keyword in VPD RO section
2359 * Returns the index of the information field keyword data or -ENOENT if
2366 * pci_vpd_check_csum - Check VPD checksum
2374 /* PCI <-> OF binding helpers */
2393 return pdev ? pdev->dev.of_node : NULL; in pci_device_to_OF_node()
2398 return bus ? bus->dev.of_node : NULL; in pci_bus_to_OF_node()
2416 return pdev->dev.archdata.edev; in pci_dev_to_eeh_dev()
2429 pdev->dev_flags |= PCI_DEV_FLAGS_ASSIGNED; in pci_set_dev_assigned()
2433 pdev->dev_flags &= ~PCI_DEV_FLAGS_ASSIGNED; in pci_clear_dev_assigned()
2437 return (pdev->dev_flags & PCI_DEV_FLAGS_ASSIGNED) == PCI_DEV_FLAGS_ASSIGNED; in pci_is_dev_assigned()
2441 * pci_ari_enabled - query ARI forwarding status
2448 return bus->self && bus->self->ari_enabled; in pci_ari_enabled()
2452 * pci_is_thunderbolt_attached - whether device is on a Thunderbolt daisy chain
2457 * Thunderbolt-attached. (But rather soldered to the mainboard usually.)
2463 if (pdev->is_thunderbolt) in pci_is_thunderbolt_attached()
2467 if (parent->is_thunderbolt) in pci_is_thunderbolt_attached()
2477 #include <linux/dma-mapping.h>
2480 dev_printk(level, &(pdev)->dev, fmt, ##arg)
2482 #define pci_emerg(pdev, fmt, arg...) dev_emerg(&(pdev)->dev, fmt, ##arg)
2483 #define pci_alert(pdev, fmt, arg...) dev_alert(&(pdev)->dev, fmt, ##arg)
2484 #define pci_crit(pdev, fmt, arg...) dev_crit(&(pdev)->dev, fmt, ##arg)
2485 #define pci_err(pdev, fmt, arg...) dev_err(&(pdev)->dev, fmt, ##arg)
2486 #define pci_warn(pdev, fmt, arg...) dev_warn(&(pdev)->dev, fmt, ##arg)
2487 #define pci_notice(pdev, fmt, arg...) dev_notice(&(pdev)->dev, fmt, ##arg)
2488 #define pci_info(pdev, fmt, arg...) dev_info(&(pdev)->dev, fmt, ##arg)
2489 #define pci_dbg(pdev, fmt, arg...) dev_dbg(&(pdev)->dev, fmt, ##arg)
2492 dev_notice_ratelimited(&(pdev)->dev, fmt, ##arg)
2495 dev_info_ratelimited(&(pdev)->dev, fmt, ##arg)
2499 dev_driver_string(&(pdev)->dev), pci_name(pdev), ##arg)
2503 dev_driver_string(&(pdev)->dev), pci_name(pdev), ##arg)