diff options
| author | mav <mav@FreeBSD.org> | 2016-08-18 11:00:48 +0000 |
|---|---|---|
| committer | mav <mav@FreeBSD.org> | 2016-08-18 11:00:48 +0000 |
| commit | 34021ec4cfdc1efab0b6d2172e4a675968811223 (patch) | |
| tree | 7c266d8510e91a36f2aebf3b3699e1ca49679ebe /share | |
| parent | ff85ec9e3290e5987486a2088a2dcbcd4d6024b5 (diff) | |
| download | FreeBSD-src-34021ec4cfdc1efab0b6d2172e4a675968811223.zip FreeBSD-src-34021ec4cfdc1efab0b6d2172e4a675968811223.tar.gz | |
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).
Diffstat (limited to 'share')
| -rw-r--r-- | share/man/man4/if_ntb.4 | 7 | ||||
| -rw-r--r-- | share/man/man4/ntb_transport.4 | 15 |
2 files changed, 15 insertions, 7 deletions
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 |
