From 3047071308102e8980d5ab7f38326f69254ea384 Mon Sep 17 00:00:00 2001 From: glebius Date: Tue, 11 Oct 2011 15:41:07 +0000 Subject: Properly document default number of rx/tx descriptors for Intel cards. --- share/man/man4/em.4 | 8 +++++--- share/man/man4/igb.4 | 6 +++--- 2 files changed, 8 insertions(+), 6 deletions(-) (limited to 'share') 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. -- cgit v1.1