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Commit 3806d08c authored by Jack Morgenstein's avatar Jack Morgenstein Committed by Roland Dreier
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IB/mlx4: Create paravirt contexts for VFs when master IB driver initializes 



When we have VFs and PFs on same host, the VFs are activated within
the mlx4_core module before the mlx4_ib kernel module is loaded.

When the mlx4_ib module initializes the PF (master), it now creates
MAD paravirtualization contexts for any VFs that already active.

Signed-off-by: default avatarJack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: default avatarRoland Dreier <roland@purestorage.com>
parent 47605df9

drivers/infiniband/hw/mlx4/mad.c

+3 −0
Original line number Diff line number Diff line
@@ -1652,6 +1652,9 @@ static int create_pv_resources(struct ib_device *ibdev, int slave, int port, 
{

	int ret, cq_size;



	if (ctx->state != DEMUX_PV_STATE_DOWN)

		return -EEXIST;



	ctx->state = DEMUX_PV_STATE_STARTING;

	/* have QP0 only on port owner, and only if link layer is IB */

	if (ctx->slave == mlx4_master_func_num(to_mdev(ctx->ib_dev)->dev) &&

drivers/infiniband/hw/mlx4/main.c

+11 −0
Original line number Diff line number Diff line
@@ -74,6 +74,8 @@ struct update_gid_work { 
	int			port;

};



static void do_slave_init(struct mlx4_ib_dev *ibdev, int slave, int do_init);



static struct workqueue_struct *wq;



static void init_query_mad(struct ib_smp *mad)
@@ -1470,6 +1472,15 @@ static void *mlx4_ib_add(struct mlx4_dev *dev) 
	if (mlx4_is_mfunc(ibdev->dev))

		init_pkeys(ibdev);



	/* create paravirt contexts for any VFs which are active */

	if (mlx4_is_master(ibdev->dev)) {

		for (j = 0; j < MLX4_MFUNC_MAX; j++) {

			if (j == mlx4_master_func_num(ibdev->dev))

				continue;

			if (mlx4_is_slave_active(ibdev->dev, j))

				do_slave_init(ibdev, j, 1);

		}

	}

	return ibdev;



err_notif: