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authorJack Morgenstein <jackm@dev.mellanox.co.il>2012-08-03 12:40:58 +0400
committerRoland Dreier <roland@purestorage.com>2012-10-01 07:33:44 +0400
commit3806d08cf6c42193c10c4963ca2d68f56a088668 (patch)
treee483b3f75cdad15363d932aef701ae3f17e81ffc /drivers/infiniband
parent47605df953985c2b792ac9f3ddf70d270b89adb8 (diff)
downloadlinux-3806d08cf6c42193c10c4963ca2d68f56a088668.tar.xz
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: Jack Morgenstein <jackm@dev.mellanox.co.il> Signed-off-by: Roland Dreier <roland@purestorage.com>
Diffstat (limited to 'drivers/infiniband')
-rw-r--r--drivers/infiniband/hw/mlx4/mad.c3
-rw-r--r--drivers/infiniband/hw/mlx4/main.c11
2 files changed, 14 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/mlx4/mad.c b/drivers/infiniband/hw/mlx4/mad.c
index 658a622791fb..21a794152d15 100644
--- a/drivers/infiniband/hw/mlx4/mad.c
+++ b/drivers/infiniband/hw/mlx4/mad.c
@@ -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) &&
diff --git a/drivers/infiniband/hw/mlx4/main.c b/drivers/infiniband/hw/mlx4/main.c
index e849347ef99a..718ec6b2bad2 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)
@@ -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: