From: Yevgeny Petrilin <yevgenyp@mellanox.co.il>
To: <davem@davemloft.net>
Cc: <netdev@vger.kernel.org>, <yevgenyp@mellanox.co.il>
Subject: [PATCH] mlx4: Performing SENSE_PORT command only when supported
Date: Wed, 4 May 2011 16:38:46 +0300 [thread overview]
Message-ID: <4DC156E6.7070704@mellanox.co.il> (raw)
Not all HW supports this functionality, and in this case FW would
report command error.
This patch checks this capability before trying to sense link partner.
Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il>
---
drivers/net/mlx4/main.c | 10 ++++++----
1 files changed, 6 insertions(+), 4 deletions(-)
diff --git a/drivers/net/mlx4/main.c b/drivers/net/mlx4/main.c
index 3814fc9..f47ac5a 100644
--- a/drivers/net/mlx4/main.c
+++ b/drivers/net/mlx4/main.c
@@ -944,10 +944,12 @@ static int mlx4_setup_hca(struct mlx4_dev *dev)
}
for (port = 1; port <= dev->caps.num_ports; port++) {
- enum mlx4_port_type port_type = 0;
- mlx4_SENSE_PORT(dev, port, &port_type);
- if (port_type)
- dev->caps.port_type[port] = port_type;
+ if (dev->caps.flags & MLX4_DEV_CAP_FLAG_DPDP) {
+ enum mlx4_port_type port_type = 0;
+ mlx4_SENSE_PORT(dev, port, &port_type);
+ if (port_type)
+ dev->caps.port_type[port] = port_type;
+ }
ib_port_default_caps = 0;
err = mlx4_get_port_ib_caps(dev, port, &ib_port_default_caps);
if (err)
--
1.6.0.2
reply other threads:[~2011-05-04 13:38 UTC|newest]
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