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authorViacheslav Ovsiienko <viacheslavo@mellanox.com>2019-08-05 13:03:53 +0000
committerRaslan Darawsheh <rasland@mellanox.com>2019-08-06 17:42:12 +0200
commit3502b059251517785bd3232a97f56fb239606183 (patch)
tree55e17616114612c7095eb71f920d0fb8f0f43f4b
parentc6f0485646fd0ab49570df2cebd69379f62b349b (diff)
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net/mlx5: fix packet size inline settings
This patch fixes the default settings for packet size to inline with Enhanced Multi-Packet Write feature, allowing 256B packets to be inlined with Out-Of-the-Box settings. Fixes: 50724e1bba76 ("net/mlx5: update Tx definitions") Signed-off-by: Viacheslav Ovsiienko <viacheslavo@mellanox.com> Acked-by: Matan Azrad <matan@mellanox.com>
-rw-r--r--doc/guides/nics/mlx5.rst2
-rw-r--r--drivers/net/mlx5/mlx5_prm.h5
2 files changed, 3 insertions, 4 deletions
diff --git a/doc/guides/nics/mlx5.rst b/doc/guides/nics/mlx5.rst
index 46538b8..5102bcd 100644
--- a/doc/guides/nics/mlx5.rst
+++ b/doc/guides/nics/mlx5.rst
@@ -449,7 +449,7 @@ Run-time configuration
and CPU resources are scarce), data inline is not performed by the driver.
Assigning ``txqs_min_inline`` with zero always enables the data inline.
- The default ``txq_inline_mpw`` value is 188. The specified value may be adjusted
+ The default ``txq_inline_mpw`` value is 268. The specified value may be adjusted
by the driver in order not to exceed the limit (930 bytes) and to provide better
WQE space filling without gaps, the adjustment is reflected in the debug log.
Due to multiple packets may be included to the same WQE with Enhanced Multi
diff --git a/drivers/net/mlx5/mlx5_prm.h b/drivers/net/mlx5/mlx5_prm.h
index 4ee6d89..d62837e 100644
--- a/drivers/net/mlx5/mlx5_prm.h
+++ b/drivers/net/mlx5/mlx5_prm.h
@@ -72,9 +72,8 @@
* boundary with accounting the title Control and Ethernet
* segments.
*/
-#define MLX5_EMPW_DEF_INLINE_LEN (3u * MLX5_WQE_SIZE + \
- MLX5_DSEG_MIN_INLINE_SIZE - \
- MLX5_WQE_DSEG_SIZE)
+#define MLX5_EMPW_DEF_INLINE_LEN (4u * MLX5_WQE_SIZE + \
+ MLX5_DSEG_MIN_INLINE_SIZE)
/*
* Maximal inline data length sent with enhanced MPW.
* Is based on maximal WQE size.