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authorJack Morgenstein <jackm@dev.mellanox.co.il>2012-06-19 12:21:40 +0400
committerRoland Dreier <roland@purestorage.com>2012-07-10 20:47:10 +0400
commit00f5ce99dc6ee46c3113393cc8fa12173f9bbcd7 (patch)
treecbcd8e2afcd492b3677bf3eedec29b34f249129c /include/linux/mlx4/driver.h
parent3045f0920367e625bbec7d66fadb444e673515af (diff)
downloadlinux-00f5ce99dc6ee46c3113393cc8fa12173f9bbcd7.tar.xz
mlx4: Use port management change event instead of smp_snoop
The port management change event can replace smp_snoop. If the capability bit for this event is set in dev-caps, the event is used (by the driver setting the PORT_MNG_CHG_EVENT bit in the async event mask in the MAP_EQ fw command). In this case, when the driver passes incoming SMP PORT_INFO SET mads to the FW, the FW generates port management change events to signal any changes to the driver. If the FW generates these events, smp_snoop shouldn't be invoked in ib_process_mad(), or duplicate events will occur (once from the FW-generated event, and once from smp_snoop). In the case where the FW does not generate port management change events smp_snoop needs to be invoked to create these events. The flow in smp_snoop has been modified to make use of the same procedures as in the fw-generated-event event case to generate the port management events (LID change, Client-rereg, Pkey change, and/or GID change). Port management change event handling required changing the mlx4_ib_event and mlx4_dispatch_event prototypes; the "param" argument (last argument) had to be changed to unsigned long in order to accomodate passing the EQE pointer. We also needed to move the definition of struct mlx4_eqe from net/mlx4.h to file device.h -- to make it available to the IB driver, to handle port management change events. Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il> Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
Diffstat (limited to 'include/linux/mlx4/driver.h')
-rw-r--r--include/linux/mlx4/driver.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/include/linux/mlx4/driver.h b/include/linux/mlx4/driver.h
index 5f1298b1b5ef..0f509229fb3d 100644
--- a/include/linux/mlx4/driver.h
+++ b/include/linux/mlx4/driver.h
@@ -42,13 +42,14 @@ enum mlx4_dev_event {
MLX4_DEV_EVENT_PORT_UP,
MLX4_DEV_EVENT_PORT_DOWN,
MLX4_DEV_EVENT_PORT_REINIT,
+ MLX4_DEV_EVENT_PORT_MGMT_CHANGE,
};
struct mlx4_interface {
void * (*add) (struct mlx4_dev *dev);
void (*remove)(struct mlx4_dev *dev, void *context);
void (*event) (struct mlx4_dev *dev, void *context,
- enum mlx4_dev_event event, int port);
+ enum mlx4_dev_event event, unsigned long param);
void * (*get_dev)(struct mlx4_dev *dev, void *context, u8 port);
struct list_head list;
enum mlx4_protocol protocol;