From 34021ec4cfdc1efab0b6d2172e4a675968811223 Mon Sep 17 00:00:00 2001
From: mav <mav@FreeBSD.org>
Date: Thu, 18 Aug 2016 11:00:48 +0000
Subject: MFC r303494: Once more refactor KPI between ntb_transport(4) and
 if_ntb(4).

New design allows to attach multiple consumers to ntb_transport(4) instance.
Previous design obtained from Linux theoretically allowed that, but was not
practically usable (Linux also has only one consumer driver now).
---
 share/man/man4/if_ntb.4        |  7 +++++--
 share/man/man4/ntb_transport.4 | 15 ++++++++++-----
 2 files changed, 15 insertions(+), 7 deletions(-)

(limited to 'share')

diff --git a/share/man/man4/if_ntb.4 b/share/man/man4/if_ntb.4
index 2f363dc..6f52d77 100644
--- a/share/man/man4/if_ntb.4
+++ b/share/man/man4/if_ntb.4
@@ -25,7 +25,7 @@
 .\"
 .\" $FreeBSD$
 .\"
-.Dd July 10, 2016
+.Dd July 29, 2016
 .Dt IF_NTB 4
 .Os
 .Sh NAME
@@ -49,7 +49,7 @@ The following tunables are settable from the
 .Bl -ohang
 .It Va hw.if_ntb.num_queues
 Number of transport queues to use per interface.
-Default is 1.
+Default is unlimited.
 .El
 .Sh DESCRIPTION
 The
@@ -84,3 +84,6 @@ Later improvements were done by
 .An Conrad E. Meyer Aq Mt cem@FreeBSD.org
 and
 .An Alexander Motin Aq Mt mav@FreeBSD.org .
+.Sh BUGS
+Linux supports only one queue per interface, so manual configuration
+may be required for compatibility.
diff --git a/share/man/man4/ntb_transport.4 b/share/man/man4/ntb_transport.4
index 33800c4..43b412c 100644
--- a/share/man/man4/ntb_transport.4
+++ b/share/man/man4/ntb_transport.4
@@ -25,7 +25,7 @@
 .\"
 .\" $FreeBSD$
 .\"
-.Dd July 10, 2016
+.Dd July 29, 2016
 .Dt NTB_TRANSPORT 4
 .Os
 .Sh NAME
@@ -44,10 +44,15 @@ The following tunables are settable from the
 .It Va hw.ntb_transport.debug_level
 Driver debug level.
 The default value is 0, higher means more verbose.
-.It Va hw.ntb_transport.max_num_clients
-Number of bidirectional queues to setup.
-The default value is 0, that means one queue per available memory window.
-Maximal number is limited by number of doorbells.
+.It Va hint.ntb_transport. Ns Ar X Ns Va .config
+Configures queues allocation for consumer devices, separated by commas.
+Each device can be configured as: "<name>[:<queues>]", where:
+.Va name
+is a name of the driver which should attach the device (empty means any),
+.Va queues
+is a number of queues to allocate (empty means automatic),
+The default configuration is empty string, which means single device
+with one queue per memory window allowing any driver attachment.
 .El
 .Sh DESCRIPTION
 The
-- 
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