2 .\" Copyright (c) 2014 Sandvine Inc.
3 .\" All rights reserved.
5 .\" Redistribution and use in source and binary forms, with or without
6 .\" modification, are permitted provided that the following conditions
8 .\" 1. Redistributions of source code must retain the above copyright
9 .\" notice, this list of conditions and the following disclaimer.
10 .\" 2. Redistributions in binary form must reproduce the above copyright
11 .\" notice, this list of conditions and the following disclaimer in the
12 .\" documentation and/or other materials provided with the distribution.
14 .\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 .\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 .\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 .\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 .\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 .\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 .\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 .\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 .\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 .Nd inform a PF driver that a VF is being created
40 .Fn PCI_IOV_ADD_VF "device_t dev" "uint16_t vfnum" "const nvlist_t *vf_config"
44 method is called by the PCI Single-Root I/O Virtualization
46 infrastructure when it is initializating a new Virtual Function (VF) as a child
47 of the given Physical Function (PF) device.
48 This method will not be called until a successful call to
51 It is not guaranteed that this method will be called following a successful call
54 If the infrastructure encounters a failure to allocate resources following the
57 the VF creation will be aborted and
59 will be called immediately without any preceding calls to
62 The index of the VF being initialized is passed in the
65 VFs are always numbered sequentially starting at 0.
67 If the driver requested device-specific configuration parameters via a VF schema
69 .Xr pci_iov_attach 9 ,
70 those parameters will be contained in the
73 All configuration parameters that were either set as required parameters or that
74 had a default value set in the VF schema are guaranteed to be present in
76 Configuration parameters that were neither set as required nor were given a
77 default value are optional and may or may not be present in
80 will not contain any configuration parameters that were not specified in the VF
82 All configuration parameters will have the correct type and will be in the range
83 of valid values specified in the schema.
85 Note that it is possible for the user to set different configuration values on
86 different VF devices that are children of the same PF.
87 The PF driver must not cache configuration parameters passed in previous calls
90 for other VFs and apply those parameters to the current VF.
92 This function will not be called twice for the same
94 on the same PF device without
98 first being called, in that order.
100 This method returns 0 on success, otherwise an appropriate error is returned.
101 If this method returns an error then the current VF device will be destroyed
102 but the rest of the VF devices will be created and SR-IOV will be enabled on
108 .Xr pci_iov_schema 9 ,
111 This manual page was written by
112 .An Ryan Stone Aq Mt rstone@FreeBSD.org .