1.\" Copyright (c) 2006, Myricom Inc
2.\" All rights reserved.
3.\"
4.\" Redistribution and use in source and binary forms, with or without
5.\" modification, are permitted provided that the following conditions are met:
6.\"
7.\" 1. Redistributions of source code must retain the above copyright notice,
8.\" this list of conditions and the following disclaimer.
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24.\" SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
25.\" INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
26.\" CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
27.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
28.\" POSSIBILITY OF SUCH DAMAGE.
29.\"
30.\" * Other names and brands may be claimed as the property of others.
31.\"
32.\" $FreeBSD: head/share/man/man4/mxge.4 162331 2006-09-15 19:33:15Z brueffer $
33.\"
34.Dd September 15, 2006
35.Dt MXGE 4
36.Os
37.Sh NAME
38.Nm mxge
39.Nd "Myricom Myri10GE 10 Gigabit Ethernet adapter driver"
40.Sh SYNOPSIS
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56.Ed
57.Sh DESCRIPTION
58The
59.Nm
60driver provides support for PCI Express 10 Gigabit Ethernet adapters based on
61the Myricom LANai Z8E chip.
62The driver supports Transmit/Receive checksum offload,
63Jumbo Frames as well as TCP segmentation offload (TSO).
64For further hardware information, see http://www.myri.com
65.Pp
66For questions related to hardware requirements,
67refer to the documentation supplied with your Myri10GE adapter.
68All hardware requirements listed apply to use with
69.Fx .
70.Pp
71Support for Jumbo Frames is provided via the interface MTU setting.
72Selecting an MTU larger than 1500 bytes with the
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102.It Va hw.mxge.intr_coal_delay
103This value delays the generation of all interrupts in units of
1041 microsecond.
105The default value is 30.
106.It Va hw.mxge.skip_pio_read
107This value determines whether or not the driver may omit doing a
108pio read in the interrupt handler which ensures that the interrupt
109line has been deasserted when using xPIC interrupts.
110A non-zero value
111may result in lower CPU overhead, however it may also result in
112spurious interrupts.
113The default value is 0.
114.El
115.Sh DIAGNOSTICS
116.Bl -diag
117.It "mxge%d: Unable to allocate bus resource: memory"
118A fatal initialization error has occurred.
119.It "mxge%d: Unable to allocate bus resource: interrupt"
120A fatal initialization error has occurred.
121.It "mxge%d: Could not find firmware image %s"
122The appropriate firmware kld module was not installed.
123This is a fatal initialization error.
124.El
125.Sh SUPPORT
126For general information and support,
127go to the Myricom support website at:
128.Pa http://www.myri.com/scs .
129.Pp
130If an issue is identified with the released source code on the supported kernel
131with a supported adapter, email the specific information related to the
132issue to
133.Aq help@myri.com .
134.Sh SEE ALSO
135.Xr arp 4 ,
136.Xr netintro 4 ,
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2.\" All rights reserved.
3.\"
4.\" Redistribution and use in source and binary forms, with or without
5.\" modification, are permitted provided that the following conditions are met:
6.\"
7.\" 1. Redistributions of source code must retain the above copyright notice,
8.\" this list of conditions and the following disclaimer.
--- 15 unchanged lines hidden (view full) ---
24.\" SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
25.\" INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
26.\" CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
27.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
28.\" POSSIBILITY OF SUCH DAMAGE.
29.\"
30.\" * Other names and brands may be claimed as the property of others.
31.\"
32.\" $FreeBSD: head/share/man/man4/mxge.4 162331 2006-09-15 19:33:15Z brueffer $
33.\"
34.Dd September 15, 2006
35.Dt MXGE 4
36.Os
37.Sh NAME
38.Nm mxge
39.Nd "Myricom Myri10GE 10 Gigabit Ethernet adapter driver"
40.Sh SYNOPSIS
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56.Ed
57.Sh DESCRIPTION
58The
59.Nm
60driver provides support for PCI Express 10 Gigabit Ethernet adapters based on
61the Myricom LANai Z8E chip.
62The driver supports Transmit/Receive checksum offload,
63Jumbo Frames as well as TCP segmentation offload (TSO).
64For further hardware information, see http://www.myri.com
65.Pp
66For questions related to hardware requirements,
67refer to the documentation supplied with your Myri10GE adapter.
68All hardware requirements listed apply to use with
69.Fx .
70.Pp
71Support for Jumbo Frames is provided via the interface MTU setting.
72Selecting an MTU larger than 1500 bytes with the
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102.It Va hw.mxge.intr_coal_delay
103This value delays the generation of all interrupts in units of
1041 microsecond.
105The default value is 30.
106.It Va hw.mxge.skip_pio_read
107This value determines whether or not the driver may omit doing a
108pio read in the interrupt handler which ensures that the interrupt
109line has been deasserted when using xPIC interrupts.
110A non-zero value
111may result in lower CPU overhead, however it may also result in
112spurious interrupts.
113The default value is 0.
114.El
115.Sh DIAGNOSTICS
116.Bl -diag
117.It "mxge%d: Unable to allocate bus resource: memory"
118A fatal initialization error has occurred.
119.It "mxge%d: Unable to allocate bus resource: interrupt"
120A fatal initialization error has occurred.
121.It "mxge%d: Could not find firmware image %s"
122The appropriate firmware kld module was not installed.
123This is a fatal initialization error.
124.El
125.Sh SUPPORT
126For general information and support,
127go to the Myricom support website at:
128.Pa http://www.myri.com/scs .
129.Pp
130If an issue is identified with the released source code on the supported kernel
131with a supported adapter, email the specific information related to the
132issue to
133.Aq help@myri.com .
134.Sh SEE ALSO
135.Xr arp 4 ,
136.Xr netintro 4 ,
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