diff mbox

[rdma-next] iw_cxgb4: Add ib_device->get_netdev support

Message ID 20180322201325.90A4B2BA7B@smtp.opengridcomputing.com (mailing list archive)
State Accepted
Headers show

Commit Message

Steve Wise March 22, 2018, 7:53 p.m. UTC 
This is useful to rdma ULPs.

Signed-off-by: Steve Wise <swise@opengridcomputing.com>
---
 drivers/infiniband/hw/cxgb4/provider.c | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

Comments

Jason Gunthorpe March 23, 2018, 5:14 p.m. UTC | #1 
On Thu, Mar 22, 2018 at 12:53:35PM -0700, Steve Wise wrote:
> This is useful to rdma ULPs.
> 
> Signed-off-by: Steve Wise <swise@opengridcomputing.com>
> ---
>  drivers/infiniband/hw/cxgb4/provider.c | 19 +++++++++++++++++++
>  1 file changed, 19 insertions(+)

Applied to for-next, thanks

Jason
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diff mbox

Patch

diff --git a/drivers/infiniband/hw/cxgb4/provider.c b/drivers/infiniband/hw/cxgb4/provider.c
index dc4eabd..0b9cc73 100644
--- a/drivers/infiniband/hw/cxgb4/provider.c
+++ b/drivers/infiniband/hw/cxgb4/provider.c
@@ -533,6 +533,24 @@  static void get_dev_fw_str(struct ib_device *dev, char *str)
 		 FW_HDR_FW_VER_BUILD_G(c4iw_dev->rdev.lldi.fw_vers));
 }
 
+static struct net_device *get_netdev(struct ib_device *dev, u8 port)
+{
+	struct c4iw_dev *c4iw_dev = container_of(dev, struct c4iw_dev, ibdev);
+	struct c4iw_rdev *rdev = &c4iw_dev->rdev;
+	struct net_device *ndev;
+
+	if (!port || port > rdev->lldi.nports)
+		return NULL;
+
+	rcu_read_lock();
+	ndev = rdev->lldi.ports[port - 1];
+	if (ndev)
+		dev_hold(ndev);
+	rcu_read_unlock();
+
+	return ndev;
+}
+
 void c4iw_register_device(struct work_struct *work)
 {
 	int ret;
@@ -611,6 +629,7 @@  void c4iw_register_device(struct work_struct *work)
 	dev->ibdev.uverbs_abi_ver = C4IW_UVERBS_ABI_VERSION;
 	dev->ibdev.get_port_immutable = c4iw_port_immutable;
 	dev->ibdev.get_dev_fw_str = get_dev_fw_str;
+	dev->ibdev.get_netdev = get_netdev;
 
 	dev->ibdev.iwcm = kmalloc(sizeof(struct iw_cm_verbs), GFP_KERNEL);
 	if (!dev->ibdev.iwcm) {