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 162871 2006-09-30 15:14:49Z ru $
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
65.Pa http://www.myri.com/ .
66.Pp
67For questions related to hardware requirements,
68refer to the documentation supplied with your Myri10GE adapter.
69All hardware requirements listed apply to use with
70.Fx .
71.Pp
72Support for Jumbo Frames is provided via the interface MTU setting.
73Selecting an MTU larger than 1500 bytes with the
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103.It Va hw.mxge.intr_coal_delay
104This value delays the generation of all interrupts in units of
1051 microsecond.
106The default value is 30.
107.It Va hw.mxge.skip_pio_read
108This value determines whether or not the driver may omit doing a
109pio read in the interrupt handler which ensures that the interrupt
110line has been deasserted when using xPIC interrupts.
111A non-zero value
112may result in lower CPU overhead, however it may also result in
113spurious interrupts.
114The default value is 0.
115.El
116.Sh DIAGNOSTICS
117.Bl -diag
118.It "mxge%d: Unable to allocate bus resource: memory"
119A fatal initialization error has occurred.
120.It "mxge%d: Unable to allocate bus resource: interrupt"
121A fatal initialization error has occurred.
122.It "mxge%d: Could not find firmware image %s"
123The appropriate firmware kld module was not installed.
124This is a fatal initialization error.
125.El
126.Sh SUPPORT
127For general information and support,
128go to the Myricom support website at:
129.Pa http://www.myri.com/scs/ .
130.Pp
131If an issue is identified with the released source code on the supported kernel
132with a supported adapter, email the specific information related to the
133issue to
134.Aq help@myri.com .
135.Sh SEE ALSO
136.Xr arp 4 ,
137.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 162871 2006-09-30 15:14:49Z ru $
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
--- 15 unchanged lines hidden (view full) ---
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
65.Pa http://www.myri.com/ .
66.Pp
67For questions related to hardware requirements,
68refer to the documentation supplied with your Myri10GE adapter.
69All hardware requirements listed apply to use with
70.Fx .
71.Pp
72Support for Jumbo Frames is provided via the interface MTU setting.
73Selecting an MTU larger than 1500 bytes with the
--- 29 unchanged lines hidden (view full) ---
103.It Va hw.mxge.intr_coal_delay
104This value delays the generation of all interrupts in units of
1051 microsecond.
106The default value is 30.
107.It Va hw.mxge.skip_pio_read
108This value determines whether or not the driver may omit doing a
109pio read in the interrupt handler which ensures that the interrupt
110line has been deasserted when using xPIC interrupts.
111A non-zero value
112may result in lower CPU overhead, however it may also result in
113spurious interrupts.
114The default value is 0.
115.El
116.Sh DIAGNOSTICS
117.Bl -diag
118.It "mxge%d: Unable to allocate bus resource: memory"
119A fatal initialization error has occurred.
120.It "mxge%d: Unable to allocate bus resource: interrupt"
121A fatal initialization error has occurred.
122.It "mxge%d: Could not find firmware image %s"
123The appropriate firmware kld module was not installed.
124This is a fatal initialization error.
125.El
126.Sh SUPPORT
127For general information and support,
128go to the Myricom support website at:
129.Pa http://www.myri.com/scs/ .
130.Pp
131If an issue is identified with the released source code on the supported kernel
132with a supported adapter, email the specific information related to the
133issue to
134.Aq help@myri.com .
135.Sh SEE ALSO
136.Xr arp 4 ,
137.Xr netintro 4 ,
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