svn commit: r226263 - head/share/man/man4

[Gleb Smirnoff]

Author: glebius
Date: Tue Oct 11 15:41:07 2011
New Revision: 226263
URL: http://svn.freebsd.org/changeset/base/226263

Log:
  Properly document default number of rx/tx descriptors for Intel cards.

Modified:
  head/share/man/man4/em.4
  head/share/man/man4/igb.4

Modified: head/share/man/man4/em.4
==============================================================================
--- head/share/man/man4/em.4	Tue Oct 11 15:04:58 2011	(r226262)
+++ head/share/man/man4/em.4	Tue Oct 11 15:41:07 2011	(r226263)
@@ -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 stor
 .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

Modified: head/share/man/man4/igb.4
==============================================================================
--- head/share/man/man4/igb.4	Tue Oct 11 15:04:58 2011	(r226262)
+++ head/share/man/man4/igb.4	Tue Oct 11 15:41:07 2011	(r226263)
@@ -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 stor
 .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.