xref: /freebsd/share/man/man4/liquidio.4 (revision 7fdf597e96a02165cfe22ff357b857d5fa15ed8a)
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32.Dd August 17, 2017
33.Dt LIQUIDIO 4
34.Os
35.Sh NAME
36.Nm liquidio
37.Nd Cavium 10Gb/25Gb Ethernet driver
38.Sh SYNOPSIS
39To compile this driver into the kernel,
40place the following line in your
41kernel configuration file:
42.Bd -ragged -offset indent
43.Cd "device lio"
44.Ed
45.Pp
46Alternatively, to load the driver as a
47module at boot time, place the following line in
48.Xr loader.conf 5 :
49.Bd -literal -offset indent
50if_lio_load="YES"
51.Ed
52.Sh DESCRIPTION
53The
54.Nm
55driver provides support for 23XX 10Gb/25Gb Ethernet adapters.
56The driver supports Jumbo Frames, Transmit/Receive checksum
57offload, TCP segmentation offload (TSO), Large Receive Offload (LRO),
58VLAN tag insertion/extraction, VLAN checksum offload,
59VLAN TSO, and Receive Side Steering (RSS)
60.Pp
61Support for Jumbo Frames is provided via the interface MTU setting.
62Selecting an MTU larger than 1500 bytes with the
63.Xr ifconfig 8
64utility configures the adapter to receive and transmit Jumbo Frames.
65The maximum MTU size for Jumbo Frames is 16000.
66.Pp
67For more information on configuring this device, see ifconfig(8).
68.Sh HARDWARE
69The
70.Nm
71driver supports the following cards:
72.Pp
73.Bl -bullet -compact
74.It
75LiquidIO II CN2350 210SV/225SV
76.It
77LiquidIO II CN2360 210SV/225SV
78.El
79.Sh LOADER TUNABLES
80Tunables can be set at the
81.Xr loader 8
82prompt before booting the kernel or stored in
83.Xr loader.conf 5 .
84.Bl -tag -width indent
85.It Va hw.lio.fw_type
86.Pp
87String that specifies type of firmware to be loaded.
88Default is "nic". Use "none" to load firmware from flash.
89.It Va hw.lio.num_queues_per_pf0
90.Pp
91Unsigned integers that specify number of queues per PF0.
92Valid range is 0 to 64.
93Use 0 to derive autoconfigures based on the number of
94cpus with a max of 8
95.It Va hw.lio.num_queues_per_pf1
96.Pp
97Unsigned integers that specify number of queues per PF1.
98Valid range is 0 to 64.
99Use 0 to derive autoconfigures based on the number of
100cpus with a max of 8
101.It Va hw.lio.console_bitmask
102.Pp
103Bitmask indicating which consoles have debug output
104redirected to syslog.
105.It Va hw.lio.rss
106.Pp
107To enable/disable driver RSS support
108.It Va hw.lio.hwlro
109.Pp
110To enable/disable hardware LRO
111.El
112.Sh SUPPORT
113For general information and support,
114go to the Cavium support website at:
115.Pa http://support.cavium.com .
116.Sh SEE ALSO
117.Xr altq 4 ,
118.Xr arp 4 ,
119.Xr netintro 4 ,
120.Xr ng_ether 4 ,
121.Xr vlan 4 ,
122.Xr ifconfig 8
123.Sh HISTORY
124The
125.Nm
126device driver first appeared in
127.Fx 12.0 .
128.Sh AUTHORS
129The
130.Nm
131driver was written by
132.An Derek Chickles Aq Mt derek.chickles@cavium.com .
133