[PATCH for-next V2 22/22] IB/mlx4: Create pv contexts for active VFs when PF (master) ib driver initializes
From: Jack Morgenstein <hidden>
Date: 2012-08-03 08:40:58
Subsystem:
infiniband subsystem, mellanox mlx4 ib driver, the rest · Maintainers:
Jason Gunthorpe, Leon Romanovsky, Yishai Hadas, Linus Torvalds
When 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 already active. Signed-off-by: Jack Morgenstein <redacted> --- drivers/infiniband/hw/mlx4/mad.c | 3 +++ drivers/infiniband/hw/mlx4/main.c | 11 +++++++++++ 2 files changed, 14 insertions(+), 0 deletions(-)
diff --git a/drivers/infiniband/hw/mlx4/mad.c b/drivers/infiniband/hw/mlx4/mad.c
index 31b0559..090a2ad 100644
--- a/drivers/infiniband/hw/mlx4/mad.c
+++ b/drivers/infiniband/hw/mlx4/mad.c@@ -1648,6 +1648,9 @@ 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) &&
diff --git a/drivers/infiniband/hw/mlx4/main.c b/drivers/infiniband/hw/mlx4/main.c
index 00384b3..82b7231 100644
--- a/drivers/infiniband/hw/mlx4/main.c
+++ b/drivers/infiniband/hw/mlx4/main.c@@ -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)
@@ -1469,6 +1471,15 @@ 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:
--
1.7.1
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