[v2,6/7] net/mlx5: add eCPRI flex parser capacity check
diff mbox series

Message ID 1594907399-63329-7-git-send-email-bingz@mellanox.com
State Superseded
Delegated to: Raslan Darawsheh
Headers show
Series
  • add eCPRI support in mlx5 driver
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Checks

Context Check Description
ci/Intel-compilation success Compilation OK
ci/checkpatch success coding style OK

Commit Message

Bing Zhao July 16, 2020, 1:49 p.m. UTC
If the NIC or the FW does not support the dynamic flex parser,
it will return error when trying to create the parser for eCRPI.
Then it is hard to know the detail error reason of the failure.
Before creating the parser node and the following usage of the
parser, the capacity bit saved in the HCA_CAP could be used to
confirm if the dynamic flex parser is supported.
If no, an error will be returned directly with ENOTSUP to prevent
the following steps to be executed.

Signed-off-by: Bing Zhao <bingz@mellanox.com>
---
 drivers/net/mlx5/mlx5.c | 5 +++++
 1 file changed, 5 insertions(+)

Patch
diff mbox series

diff --git a/drivers/net/mlx5/mlx5.c b/drivers/net/mlx5/mlx5.c
index aec0173..eaa2d3e 100644
--- a/drivers/net/mlx5/mlx5.c
+++ b/drivers/net/mlx5/mlx5.c
@@ -636,6 +636,11 @@  mlx5_flex_parser_ecpri_alloc(struct rte_eth_dev *dev)
 	uint32_t ids[8];
 	int ret;
 
+	if (!priv->caps.parse_graph_flex_node) {
+		DRV_LOG(ERR, "Dynamic flex parser is not supported "
+			"for device %s.", priv->dev_data->name);
+		return -ENOTSUP;
+	}
 	node.header_length_mode = MLX5_GRAPH_NODE_LEN_FIXED;
 	/* 8 bytes now: 4B common header + 4B message body header. */
 	node.header_length_base_value = 0x8;