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authorDaniel Jurgens <danielj@mellanox.com>2016-04-20 16:01:16 +0300
committerDavid S. Miller <davem@davemloft.net>2016-04-21 22:02:40 +0300
commit4bfd2e6e53435a214888fd35e230157a38ffc6a0 (patch)
tree83290b8a28423b8f84d033d0749a7a58b773808c /include/linux/mlx4
parentc12833acff62cff83a8b728253e7ebbc1264d75e (diff)
downloadlinux-4bfd2e6e53435a214888fd35e230157a38ffc6a0.tar.xz
net/mlx4_core: Avoid repeated calls to pci enable/disable
Maintain the PCI status and provide wrappers for enabling and disabling the PCI device. Performing the actions more than once without doing its opposite results in warning logs. This occurred when EEH hotplugged the device causing a warning for disabling an already disabled device. Fixes: 2ba5fbd62b25 ('net/mlx4_core: Handle AER flow properly') Signed-off-by: Daniel Jurgens <danielj@mellanox.com> Signed-off-by: Yishai Hadas <yishaih@mellanox.com> Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/linux/mlx4')
-rw-r--r--include/linux/mlx4/device.h7
1 files changed, 7 insertions, 0 deletions
diff --git a/include/linux/mlx4/device.h b/include/linux/mlx4/device.h
index 8541a913f6a3..d1f904c8b2cb 100644
--- a/include/linux/mlx4/device.h
+++ b/include/linux/mlx4/device.h
@@ -828,6 +828,11 @@ struct mlx4_vf_dev {
u8 n_ports;
};
+enum mlx4_pci_status {
+ MLX4_PCI_STATUS_DISABLED,
+ MLX4_PCI_STATUS_ENABLED,
+};
+
struct mlx4_dev_persistent {
struct pci_dev *pdev;
struct mlx4_dev *dev;
@@ -841,6 +846,8 @@ struct mlx4_dev_persistent {
u8 state;
struct mutex interface_state_mutex; /* protect SW state */
u8 interface_state;
+ struct mutex pci_status_mutex; /* sync pci state */
+ enum mlx4_pci_status pci_status;
};
struct mlx4_dev {