xref: /illumos-gate/usr/src/man/man9e/mc_setpromisc.9e (revision cc6b30399e68fb9666466c57ed822f297b2c6ae4)
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12.\" Copyright 2016 Joyent, Inc.
13.\"
14.Dd May 31, 2016
15.Dt MC_SETPROMISC 9E
16.Os
17.Sh NAME
18.Nm mc_setpromisc
19.Nd modify device promiscuous mode entry point
20.Sh SYNOPSIS
21.In sys/mac_provider.h
22.Ft int
23.Fo prefix_m_setpromisc
24.Fa "void *driver"
25.Fa "boolean_t enable"
26.Fc
27.Sh INTERFACE LEVEL
28illumos DDI Specific
29.Sh PARAMETERS
30.Bl -tag -width Ds
31.It Fa driver
32A pointer to the driver's private data that was passed in via the
33.Sy m_pdata
34member of the
35.Xr mac_register 9S
36structure to the
37.Xr mac_register 9F
38function.
39.It Fa enable
40A boolean that indicates the desired state of the device's promiscuous
41mode. If set to
42.Sy B_TRUE ,
43promiscuous mode should be enabled on the device. If set to
44.Sy B_FALSE ,
45then promiscuous mode should be disabled on the device.
46.El
47.Sh DESCRIPTION
48The
49.Fn mc_setpromisc
50entry point is called when the GLDv3 wants to change the device's
51promiscuous mode. When this entry point is called, the device should
52manipulate both its unicast and multicast promiscuous mode.
53.Pp
54When
55.Fa enable
56is true, then it should make sure that both unicast and multicast
57promiscuous mode are enabled. When it's set to false, then they should
58be disabled. In general, devices should always start with promiscuous
59mode disabled until the framework indicates that it should be enabled.
60.Pp
61The device driver's private state is available by casting the
62.Fa driver
63argument to the function. Note, this entry point may be called in
64parallel with others and therefore the device driver should employ any
65necessary locking on that structure.
66.Sh RETURN VALUES
67Upon successful completion, the device driver's
68.Fn mc_setpromisc
69entry point should return
70.Sy 0
71after having set the device's state. Otherwise, it should return a
72non-zero positive error number to indicate the error that occurred.
73.Sh ERRORS
74The device driver may return one of the following errors. While this list
75is not intended to be exhaustive, it is recommended to use one of these
76if possible.
77.Bl -tag -width Er
78.It Er EIO
79The driver encountered a device or transport error while trying to
80update the device's state.
81.El
82.Sh SEE ALSO
83.Xr mac 9E ,
84.Xr mac_register 9F ,
85.Xr mac_register 9S
86