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diff --git a/share/man/man4/em.4 b/share/man/man4/em.4
--- a/share/man/man4/em.4
+++ b/share/man/man4/em.4
@@ -31,7 +31,7 @@
.\"
.\" $FreeBSD$
.\"
-.Dd January 30, 2019
+.Dd May 8, 2023
.Dt EM 4
.Os
.Sh NAME
@@ -215,6 +215,9 @@
.Xr loader 8
prompt before booting the kernel or stored in
.Xr loader.conf 5 .
+See
+.Xr iflib 4
+for per-instance variables.
.Bl -tag -width indent
.It Va hw.em.disable_crc_stripping
Disable or enable hardware stripping of CRC field.
@@ -224,27 +227,12 @@
.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,
-and 256 for older ones.
-The 82542 and 82543-based adapters can handle up to 256 descriptors,
-while others can have up to 4096.
-.It Va hw.em.txd
-Number of transmit descriptors allocated by the driver.
-The default value is 1024 for adapters newer than 82547,
-and 256 for older ones.
-The 82542 and 82543-based adapters can handle up to 256 descriptors,
-while others can have up to 4096.
.It Va hw.em.rx_int_delay
This value delays the generation of receive interrupts in units of
1.024 microseconds.
@@ -264,6 +252,12 @@
.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.max_interrupt_rate
+Maximum interrupts per second.
+The default value is 8000.
+.It Va hw.em.rx_process_limit
+Maximum number of received packets to process at a time, -1 means unlimited.
+The default value is 100.
.El
.Sh FILES
.Bl -tag -width /dev/led/em*

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