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.
--- 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 159573 2006-06-13 14:23:13Z brueffer $
33.\"
34.Dd February 9, 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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74utility configures the adapter to receive and transmit Jumbo Frames.
75The maximum MTU size for Jumbo Frames is 9000.
76.Pp
77For more information on configuring this device, see
78.Xr ifconfig 8 .
79.Sh HARDWARE
80The
81.Nm
82driver supports 10 Gigabit Ethernet adapters based on the
83Myricom LANai Z8E chips:
84.Pp
85.Bl -bullet -compact
86.It
87Myricom 10GBase-CX4 (10G-PCIE-8A-C, 10G-PCIE-8AL-C)
88.It
89Myricom 10GBase-R (10G-PCIE-8A-R, 10G-PCIE-8AL-R)
90.It
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96prompt before booting the kernel or stored in
97.Xr loader.conf 5 .
98.Bl -tag -width indent
99.It Va hw.mxge.flow_control_enabled
100Whether or not hardware flow control is enabled on the adapter.
101The default value is 1.
102.It Va hw.mxge.intr_coal_delay
103This value delays the generation of all interrupts in units of
1041 microsecond. The default value is 30.
105.It Va hw.mxge.skip_pio_read
106This value determines whether or not the driver may omit doing a
107pio read in the interrupt handler which ensures that the interrupt
108line has been deasserted when using xPIC interrupts. A non-zero value
109may result in lower CPU overhead, however it may also result in
110spurious interrupts. The default value is 0.
111.El
112.Sh DIAGNOSTICS
113.Bl -diag
114.It "mxge%d: Unable to allocate bus resource: memory"
115A fatal initialization error has occurred.
116.It "mxge%d: Unable to allocate bus resource: interrupt"
117A fatal initialization error has occurred.
118.It "mxge%d: Could not find firmware image %s"
119The appropriate firmware kld module was not installed. This is a
120fatal initialization error.
121.El
122.Sh SUPPORT
123For general information and support,
124go to the Myricom support website at:
125.Pa http://www.myri.com/scs .
126.Pp
127If an issue is identified with the released source code on the supported kernel
128with a supported adapter, email the specific information related to the
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137The
138.Nm
139device driver first appeared in
140.Fx 7.0 .
141.Sh AUTHORS
142The
143.Nm
144driver was written by
145.An Andrew Gallatin Aq gallatin@freebsd.org .
146
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 159573 2006-06-13 14:23:13Z brueffer $
33.\"
34.Dd February 9, 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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74utility configures the adapter to receive and transmit Jumbo Frames.
75The maximum MTU size for Jumbo Frames is 9000.
76.Pp
77For more information on configuring this device, see
78.Xr ifconfig 8 .
79.Sh HARDWARE
80The
81.Nm
82driver supports 10 Gigabit Ethernet adapters based on the
83Myricom LANai Z8E chips:
84.Pp
85.Bl -bullet -compact
86.It
87Myricom 10GBase-CX4 (10G-PCIE-8A-C, 10G-PCIE-8AL-C)
88.It
89Myricom 10GBase-R (10G-PCIE-8A-R, 10G-PCIE-8AL-R)
90.It
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96prompt before booting the kernel or stored in
97.Xr loader.conf 5 .
98.Bl -tag -width indent
99.It Va hw.mxge.flow_control_enabled
100Whether or not hardware flow control is enabled on the adapter.
101The default value is 1.
102.It Va hw.mxge.intr_coal_delay
103This value delays the generation of all interrupts in units of
1041 microsecond. The default value is 30.
105.It Va hw.mxge.skip_pio_read
106This value determines whether or not the driver may omit doing a
107pio read in the interrupt handler which ensures that the interrupt
108line has been deasserted when using xPIC interrupts. A non-zero value
109may result in lower CPU overhead, however it may also result in
110spurious interrupts. The default value is 0.
111.El
112.Sh DIAGNOSTICS
113.Bl -diag
114.It "mxge%d: Unable to allocate bus resource: memory"
115A fatal initialization error has occurred.
116.It "mxge%d: Unable to allocate bus resource: interrupt"
117A fatal initialization error has occurred.
118.It "mxge%d: Could not find firmware image %s"
119The appropriate firmware kld module was not installed. This is a
120fatal initialization error.
121.El
122.Sh SUPPORT
123For general information and support,
124go to the Myricom support website at:
125.Pa http://www.myri.com/scs .
126.Pp
127If an issue is identified with the released source code on the supported kernel
128with a supported adapter, email the specific information related to the
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137The
138.Nm
139device driver first appeared in
140.Fx 7.0 .
141.Sh AUTHORS
142The
143.Nm
144driver was written by
145.An Andrew Gallatin Aq gallatin@freebsd.org .
146