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-rw-r--r--share/man/man4/cxgbe.44
1 files changed, 4 insertions, 0 deletions
diff --git a/share/man/man4/cxgbe.4 b/share/man/man4/cxgbe.4
index 2a01a65..9ee9f84 100644
--- a/share/man/man4/cxgbe.4
+++ b/share/man/man4/cxgbe.4
@@ -167,6 +167,10 @@ Tunables can be set at the
.Xr loader 8
prompt before booting the kernel or stored in
.Xr loader.conf 5 .
+There are multiple tunables that control the number of queues of various
+types.
+A negative value for such a tunable instructs the driver to create
+up to that many queues if there are enough CPU cores available.
.Bl -tag -width indent
.It Va hw.cxgbe.ntxq10g
Number of tx queues used for a 10Gb or higher-speed port.
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