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IB/mlx4: Create paravirt contexts for VFs when master IB driver initializes

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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>
This commit is contained in:
Jack Morgenstein 2012-08-03 08:40:58 +00:00 committed by Roland Dreier
parent 47605df953
commit 3806d08cf6
2 changed files with 14 additions and 0 deletions
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3
drivers/infiniband/hw/mlx4/mad.c
View File

@ -1652,6 +1652,9 @@ static int create_pv_resources(struct ib_device *ibdev, int slave, int port,
{ {
int ret, cq_size; int ret, cq_size;
if (ctx->state != DEMUX_PV_STATE_DOWN)
return -EEXIST;
ctx->state = DEMUX_PV_STATE_STARTING; ctx->state = DEMUX_PV_STATE_STARTING;
/* have QP0 only on port owner, and only if link layer is IB */ /* 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) && if (ctx->slave == mlx4_master_func_num(to_mdev(ctx->ib_dev)->dev) &&

11
drivers/infiniband/hw/mlx4/main.c
View File

@ -74,6 +74,8 @@ struct update_gid_work {
int port; int port;
}; };
static void do_slave_init(struct mlx4_ib_dev *ibdev, int slave, int do_init);
static struct workqueue_struct *wq; static struct workqueue_struct *wq;
static void init_query_mad(struct ib_smp *mad) 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)) if (mlx4_is_mfunc(ibdev->dev))
init_pkeys(ibdev); 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; return ibdev;
err_notif: err_notif: