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Diffstat (limited to 'share/man/man4/em.4')
| -rw-r--r-- | share/man/man4/em.4 | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/share/man/man4/em.4 b/share/man/man4/em.4 index ab50ab1..aa0db1a 100644 --- a/share/man/man4/em.4 +++ b/share/man/man4/em.4 @@ -45,6 +45,14 @@ kernel configuration file: .Cd "device em" .Ed .Pp +Optional multiqueue support is available via the following kernel +compile options: +.Bd -ragged -offset indent +.Cd "options EM_MULTIQUEUE" +.Ed +.Pp +Note: Activating EM_MULTIQUEUE support is not supported by Intel. +.Pp Alternatively, to load the driver as a module at boot time, place the following line in .Xr loader.conf 5 : @@ -197,6 +205,18 @@ Tunables can be set at the prompt before booting the kernel or stored in .Xr loader.conf 5 . .Bl -tag -width indent +.It Va hw.em.eee_setting +Disable or enable Energy Efficient Ethernet. +Default 1 (disabled). +.It Va hw.em.msix +Enable or disable MSI-X style interrupts. +Default 1 (enabled). +.It Va hw.em.smart_pwr_down +Enable or disable smart power down features on newer adapters. +Default 0 (disabled). +.It Va hw.em.sbp +Show bad packets when in promiscuous mode. +Default 0 (off). .It Va hw.em.rxd Number of receive descriptors allocated by the driver. The default value is 1024 for adapters newer than 82547, @@ -228,6 +248,11 @@ If .Va hw.em.tx_int_delay is non-zero, this tunable limits the maximum delay in which a transmit interrupt is generated. +.It Va hw.em.num_queues +Number of hardware queues that will be configured on this adapter (maximum of 2) +Defaults to 1. +Only valid with kernel configuration +.Cd "options EM_MULTIQUEUE". .El .Sh FILES .Bl -tag -width /dev/led/em* @@ -287,3 +312,5 @@ You can enable it on an .Nm interface using .Xr ifconfig 8 . +.Pp +Activating EM_MULTIQUEUE support requires MSI-X features. |
