[IB] mthca: Report correct atomic capability

Return correct atomic capability flag from mthca query function.
Signed-off-by: Jack Morgenstein <jackm@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>

drivers/infiniband/hw/mthca/mthca_dev.h

@@ -148,6 +148,7 @@ struct mthca_limits {
 	int      reserved_mcgs;
 	int      num_pds;
 	int      reserved_pds;
+	u32      flags;
 	u8       port_width_cap;
 };
 

drivers/infiniband/hw/mthca/mthca_main.c

@@ -172,6 +172,7 @@ static int __devinit mthca_dev_lim(struct mthca_dev *mdev, struct mthca_dev_lim
 	mdev->limits.reserved_uars      = dev_lim->reserved_uars;
 	mdev->limits.reserved_pds       = dev_lim->reserved_pds;
 	mdev->limits.port_width_cap     = dev_lim->max_port_width;
+	mdev->limits.flags              = dev_lim->flags;
 
 	/* IB_DEVICE_RESIZE_MAX_WR not supported by driver.
 	   May be doable since hardware supports it for SRQ.

drivers/infiniband/hw/mthca/mthca_provider.c

@@ -99,6 +99,8 @@ static int mthca_query_device(struct ib_device *ibdev,
 	props->max_qp_rd_atom      = 1 << mdev->qp_table.rdb_shift;
 	props->max_qp_init_rd_atom = 1 << mdev->qp_table.rdb_shift;
 	props->local_ca_ack_delay  = mdev->limits.local_ca_ack_delay;
+	props->atomic_cap          = mdev->limits.flags & DEV_LIM_FLAG_ATOMIC ? 
+					IB_ATOMIC_HCA : IB_ATOMIC_NONE;
 
 	err = 0;
  out: