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authorglebius <glebius@FreeBSD.org>2011-10-11 15:41:07 +0000
committerglebius <glebius@FreeBSD.org>2011-10-11 15:41:07 +0000
commit3047071308102e8980d5ab7f38326f69254ea384 (patch)
tree90a0ed65b0676215eeb29efddecfa7d4cc81a6db /share
parent0fb3102c12b669417c078f617889c3ddd5e59fe4 (diff)
downloadFreeBSD-src-3047071308102e8980d5ab7f38326f69254ea384.zip
FreeBSD-src-3047071308102e8980d5ab7f38326f69254ea384.tar.gz
Properly document default number of rx/tx descriptors for Intel cards.
Diffstat (limited to 'share')
-rw-r--r--share/man/man4/em.48
-rw-r--r--share/man/man4/igb.46
2 files changed, 8 insertions, 6 deletions
diff --git a/share/man/man4/em.4 b/share/man/man4/em.4
index 842f9ee..709463f 100644
--- a/share/man/man4/em.4
+++ b/share/man/man4/em.4
@@ -31,7 +31,7 @@
.\"
.\" $FreeBSD$
.\"
-.Dd May 14, 2010
+.Dd October 11, 2010
.Dt EM 4
.Os
.Sh NAME
@@ -199,12 +199,14 @@ prompt before booting the kernel or stored in
.Bl -tag -width indent
.It Va hw.em.rxd
Number of receive descriptors allocated by the driver.
-The default value is 256.
+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 256.
+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
diff --git a/share/man/man4/igb.4 b/share/man/man4/igb.4
index 70db340..dc72725 100644
--- a/share/man/man4/igb.4
+++ b/share/man/man4/igb.4
@@ -31,7 +31,7 @@
.\"
.\" $FreeBSD$
.\"
-.Dd May 14, 2010
+.Dd October 11, 2011
.Dt IGB 4
.Os
.Sh NAME
@@ -151,11 +151,11 @@ prompt before booting the kernel or stored in
.Bl -tag -width indent
.It Va hw.igb.rxd
Number of receive descriptors allocated by the driver.
-The default value is 256.
+The default value is 1024.
The minimum is 80, and the maximum is 4096.
.It Va hw.igb.txd
Number of transmit descriptors allocated by the driver.
-The default value is 256.
+The default value is 1024.
The minimum is 80, and the maximum is 4096.
.It Va hw.igb.enable_aim
If set to 1, enable Adaptive Interrupt Moderation.
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