The paragraph describing the rl_burst_size devarg did not mention
that out-of-range values are rejected, which can otherwise look like
a silent no-op to a reader. Add a note that such values cause the
driver to fail to initialize, since ice_cfg_rl_burst_size() validates
the value and dev_probe() bails out with -EINVAL if it is rejected.
Fixes: b3f2afb3b7ea ("net/ice: add scheduler rate-limiter burst size devarg")
Signed-off-by: Dawid Wesierski <[email protected]>
---
doc/guides/nics/ice.rst | 1 +
1 file changed, 1 insertion(+)
diff --git a/doc/guides/nics/ice.rst b/doc/guides/nics/ice.rst
index 5589ce934f..2f7c9e6f7c 100644
--- a/doc/guides/nics/ice.rst
+++ b/doc/guides/nics/ice.rst
@@ -164,6 +164,7 @@ Runtime Configuration
Time-sensitive applications can lower this value to reduce Tx latency jitter
at the cost of throughput by setting the ``rl_burst_size`` devargs
parameter, in bytes.
A value of ``0`` (the default) keeps the hardware default.
+ Values outside the range supported by the hardware cause the driver to fail
to initialize.
For example::
--
2.47.3
---------------------------------------------------------------------
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