Lines Matching +full:pci +full:- +full:domain
29 .Nm pci
30 .Nd generic PCI/PCIe bus driver
32 To compile the PCI bus driver into the kernel,
35 .Bd -ragged -offset indent
36 .Cd device pci
40 .Pq SR-IOV :
41 .Bd -ragged -offset indent
45 To compile in support for native PCI-express HotPlug:
46 .Bd -ragged -offset indent
53 .Tn PCI
57 .Tn PCI
63 .Pa /dev/pci
65 .Tn PCI
68 .Tn PCI
70 .Tn PCI
76 .Tn PCI
84 .Pa /dev/pci
91 or a BAR read access could have function-specific side-effects.
96 .Tn PCI
99 .Tn PCI
101 .Tn PCI
106 .Tn PCI
108 .Tn PCI
113 driver also includes support for PCI-PCI bridges,
114 various platform-specific Host-PCI bridges,
116 .Tn PCI
126 .Bl -tag -width 012345678901234
134 .Tn PCI
136 .Tn PCI
147 .Bl -tag -width match_buf_len
149 The length, in bytes, of the buffer filled with user-supplied patterns.
151 The number of user-supplied patterns.
153 Pointer to a buffer filled with user-supplied patterns.
162 .Bl -tag -width pd_vendor
164 .Tn PCI
165 domain, bus, slot and function.
167 .Tn PCI
170 .Tn PCI
173 .Tn PCI
176 .Tn PCI
179 .Tn PCI
203 .Bl -tag -width pc_subvendor
205 .Tn PCI
206 domain, bus, slot and function.
208 .Tn PCI
211 .Tn PCI
214 .Tn PCI
217 .Tn PCI
220 .Tn PCI
223 .Tn PCI
226 .Tn PCI
229 .Tn PCI
232 .Tn PCI
250 .Tn PCI
264 .Bl -ohang
266 This means that there are no more devices in the PCI device list matching
273 .Tn PCI
301 .Tn PCI
302 configuration registers specified by the passed-in
308 .Bl -tag -width pi_width
312 structure which specifies the domain, bus, slot and function the user would
314 If the specific bus is not found, errno will be set to ENODEV and -1 returned
318 .Tn PCI
324 3-byte reads and reads larger than 4 bytes are
334 .Tn PCI
335 configuration registers specified in the passed-in
343 .Tn PCI
349 .Tn PCI
350 device specified in the passed-in
370 the memory-mapped PCI BAR into its address space.
374 .Bl -tag -width Vt struct pcise pbm_sel
406 Regular memory-like BAR should be mapped with
412 .Bl -tag -width PCIIO_BAR_MMAP_ACTIVATE
425 Without the flag, read-only mapping is established.
426 Note that it is common for the device registers to have side-effects
440 .Bl -tag
455 1-byte, 2-byte, 4-byte and 8-byte perations are supported.
478 tunable to a non-zero value.
479 .Bl -tag -width indent
480 .It Va hw.pci.clear_bars Pq Defaults to 0
481 Ignore any firmware-assigned memory and I/O port resources.
483 .Tn PCI
486 .It Va hw.pci.clear_buses Pq Defaults to 0
487 Ignore any firmware-assigned bus number registers in PCI-PCI bridges.
489 .Tn PCI
490 bus driver and PCI-PCI bridge driver to allocate bus numbers for secondary
491 buses behind PCI-PCI bridges.
492 .It Va hw.pci.clear_pcib Pq Defaults to 0
493 Ignore any firmware-assigned memory and I/O port resource windows in PCI-PCI
495 This forces the PCI-PCI bridge driver to allocate memory and I/O port resources
498 By default the PCI-PCI bridge driver will allocate windows that
499 contain the firmware-assigned resources devices behind the bridge.
500 In addition, the PCI-PCI bridge driver will suballocate from existing window
504 .Va hw.pci.clear_bars
506 .Va hw.pci.clear_pcib
507 must be enabled to fully ignore firmware-supplied resource assignments.
508 .It Va hw.pci.default_vgapci_unit Pq Defaults to -1
511 .Tn PCI
517 .It Va hw.pci.do_power_nodriver Pq Defaults to 0
522 .Bl -tag -width indent
525 .Tn PCI
539 .Tn PCI
542 .It Va hw.pci.do_power_resume Pq Defaults to 1
544 .Tn PCI
548 up non-powered PCI devices after a suspend.
549 .It Va hw.pci.do_power_suspend Pq Defaults to 1
551 .Tn PCI
556 .It Va hw.pci.enable_ari Pq Defaults to 1
557 Enable support for PCI-express Alternative RID Interpretation.
558 This is often used in conjunction with SR-IOV.
559 .It Va hw.pci.enable_io_modes Pq Defaults to 1
560 Enable memory or I/O port decoding in a PCI device's command register if it has
561 firmware-assigned memory or I/O port resources.
567 .It Va hw.pci.enable_msi Pq Defaults to 1
571 .It Va hw.pci.enable_msix Pq Defaults to 1
573 .Pq MSI-X .
574 MSI-X interrupts can be disabled by setting this tunable to 0.
575 .It Va hw.pci.enable_pcie_ei Pq Defaults to 0
576 Enable support for PCI-express Electromechanical Interlock.
577 .It Va hw.pci.enable_pcie_hp Pq Defaults to 1
578 Enable support for native PCI-express HotPlug.
579 .It Va hw.pci.honor_msi_blacklist Pq Defaults to 1
580 MSI and MSI-X interrupts are disabled for certain chipsets known to have
581 broken MSI and MSI-X implementations when this tunable is set.
582 It can be set to zero to permit use of MSI and MSI-X interrupts if the
584 .It Va hw.pci.iov_max_config Pq Defaults to 1MB
586 used when creating Virtual Functions via SR-IOV.
589 .It Va hw.pci.realloc_bars Pq Defaults to 0
591 for any memory or I/O port resources with firmware-assigned ranges that
593 .It Va hw.pci.usb_early_takeover Pq Defaults to 1 on Tn amd64 and Tn i386
598 .It Va hw.pci<D>.<B>.<S>.INT<P>.irq
603 The tunable name includes the address of the PCI device as well as the
605 .Bl -tag -width indent
607 The domain
609 of the PCI device in decimal.
611 The bus address of the PCI device in decimal.
613 The slot of the PCI device in decimal.
615 The interrupt pin of the PCI slot to override.
636 .Va hints.<name>.<unit>.at="pci<B>:<S>:<F>"
638 .Va hints.<name>.<unit>.at="pci<D>:<B>:<S>:<F>"
643 for any PCI device found to match the specification, where:
644 .Bl -tag -width -indent
646 The domain
648 of the PCI device in decimal.
651 The bus address of the PCI device in decimal.
653 The slot of the PCI device in decimal.
655 The function of the PCI device in decimal.
670 .Bd -literal
677 at PCI bus 14 slot 0 function 0,
681 device at PCI bus 6 slot 0 function 0,
695 of the address: The root complex (domain), the slot number and the function.
703 .Bd -literal
704 hint.nvme.3.at="PciRoot(0x2)/Pci(0x1,0x3)/Pci(0x0,0x0)/Pci(0x0,0x0)/Pci(0x0,0x0)"
705 hint.nvme.8.at="PciRoot(0x1)/Pci(0x2,0x2)/Pci(0x0,0x0)/Pci(0x0,0x0)"
717 .Bl -tag -width /dev/pci -compact
718 .It Pa /dev/pci
730 .Tn PCI
734 Support for device listing and matching was re-implemented by