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authorRoland Dreier <roland@purestorage.com>2012-09-27 10:01:19 -0700
committerRoland Dreier <roland@purestorage.com>2012-10-01 02:10:45 -0700
commitaadf4f3f66a7b710b05b31ac0839fbbf59e41f7c (patch)
treed33fab82c180e7919ede40f02c1eea363a4e40c6 /drivers
parentca3e57a599e1f3624a6164a5c3a655859368f7aa (diff)
mlx4_core: Disable SENSE_PORT for multifunction devices
In the current driver, the SENSE_PORT firmware command is issued as a "wrapped" command, but the command handling code doesn't have a wrapper, so it will never do anything other than log an error message. The latest ConnectX-3 2.11.500 firmware reports the SENSE_PORT capability even in multi-function (SR-IOV) mode, so the driver will try to issue the command. At least until the driver has a proper wrapper for SENSE_PORT, make sure we disable the command for multi-function devices. Signed-off-by: Roland Dreier <roland@purestorage.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/net/ethernet/mellanox/mlx4/main.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx4/main.c b/drivers/net/ethernet/mellanox/mlx4/main.c
index 877d1122f78..bc1e5d41c29 100644
--- a/drivers/net/ethernet/mellanox/mlx4/main.c
+++ b/drivers/net/ethernet/mellanox/mlx4/main.c
@@ -300,6 +300,9 @@ static int mlx4_dev_cap(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap)
/* Sense port always allowed on supported devices for ConnectX-1 and -2 */
if (mlx4_priv(dev)->pci_dev_data & MLX4_PCI_DEV_FORCE_SENSE_PORT)
dev->caps.flags |= MLX4_DEV_CAP_FLAG_SENSE_SUPPORT;
+ /* Don't do sense port on multifunction devices (for now at least) */
+ if (mlx4_is_mfunc(dev))
+ dev->caps.flags &= ~MLX4_DEV_CAP_FLAG_SENSE_SUPPORT;
dev->caps.log_num_macs = log_num_mac;
dev->caps.log_num_vlans = MLX4_LOG_NUM_VLANS;