xref: /illumos-gate/usr/src/man/man9f/ddi_ufm_slot.9f (revision 2c181cc4d9d2e7a92c98a12cafffc6dadff80019)
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12.\" Copyright 2019 Joyent, Inc.
13.\" Copyright 2020 Oxide Computer Company
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15.Dd May 19, 2020
16.Dt DDI_UFM_SLOT 9F
17.Os
18.Sh NAME
19.Nm ddi_ufm_slot ,
20.Nm ddi_ufm_slot_set_version ,
21.Nm ddi_ufm_slot_set_attrs ,
22.Nm ddi_ufm_slot_set_misc ,
23.Nm ddi_ufm_slot_set_imgsize
24.Nd UFM slot property routines
25.Sh SYNOPSIS
26#include <sys/ddi_ufm.h>
27.sp
28.Ft void
29.Fo ddi_ufm_slot_set_version
30.Fa "ddi_ufm_slot_t *usp"
31.Fa "const char *version"
32.Fc
33.Ft void
34.Fo ddi_ufm_slot_set_attrs
35.Fa "ddi_ufm_slot_t *usp"
36.Fa "ddi_ufm_attr_t attrs"
37.Fc
38.Ft void
39.Fo ddi_ufm_slot_set_misc
40.Fa "ddi_ufm_slot_t *usp"
41.Fa "nvlist_t *nvl"
42.Fc
43.Ft void
44.Fo ddi_ufm_slot_set_imgsize
45.Fa "ddi_ufm_slot_t *usp"
46.Fa "uint64_t len"
47.Fc
48.Sh INTERFACE LEVEL
49.Sy Evolving -
50This interface is evolving still in illumos.
51API and ABI stability is not guaranteed.
52.Sh PARAMETERS
53.Bl -tag -width Fa
54.It Fa usp
55A pointer to a UFM slot structure that was passed to the driver in its
56.Xr ddi_ufm_op_fill_slot 9E
57entry point.
58.It Fa version
59A device-specific ASCII string that indicates the current version of the
60firmware image in the slot.
61.It Fa attrs
62The bitwise-inclusive-OR of one of several attributes of a firmware
63slot.
64See the discussion of the
65.Fn ddi_ufm_op_fill_slot
66function in
67.Xr ddi_ufm 9E .
68.It Fa nvl
69An nvlist_t with ancillary, device-specific data.
70.It Fa len
71The length in bytes of a firmware image in a slot.
72.El
73.Sh DESCRIPTION
74The
75.Fn ddi_ufm_slot_set_version ,
76.Fn ddi_ufm_slot_set_attrs ,
77.Fn ddi_ufm_slot_set_misc ,
78and
79.Fn ddi_ufm_slot_set_imgsize
80functions are used by device drivers to set information about a firmware
81slot on the slot structure
82.Fa usp
83as a part of implementing their
84.Xr ddi_ufm_op_fill_slot 9E
85entry point.
86For more information on slots and the use of these functions, see the
87description of the
88.Fn ddi_ufm_op_fill_slot
89function in
90.Xr ddi_ufm 9E .
91.Pp
92The
93.Fn ddi_ufm_slot_set_version
94function sets the version property of a firmware slot.
95The version should be a human-readable ASCII string that describes the current
96firmware revision in a way that makes sense to an administrator and someone
97who is referencing the documentation of a vendor.
98.Pp
99The
100.Fn ddi_ufm_slot_set_attrs
101function describes attributes of a UFM slot as defined by the
102ddi_ufm_attr_t enum.
103.Pp
104The
105.Fn ddi_ufm_slot_set_misc
106function is used by the driver to set ancillary key-value data that may
107be useful to a consumer.
108For example, a driver may use this method to encode specific information that
109the firmware provides about how or when it was produced or installed on the
110device.
111The driver should create an nvlist for this purpose with
112.Xr nvlist_alloc 9F .
113Once the driver passes the nvlist to the
114.Fn ddi_ufm_slot_set_misc
115function, then the driver must not manipulate or free the nvlist at all.
116It is the property of the UFM subsystem.
117.Pp
118the
119.Fn ddi_ufm_slot_set_imgsize
120function is used by the driver to indicate the size of a firmware image
121in a slot.
122Consumers use this to determine the amount of data that they should read
123for a firmware image itself.
124.Sh CONTEXT
125These functions should only be called in the context of the
126.Xr ddi_ufm_op_fill_slot 9E
127entry point.
128.Sh SEE ALSO
129