svn commit: r330506 - head/sys/ofed/drivers/infiniband/core

[Hans Petter Selasky]

Author: hselasky
Date: Mon Mar  5 14:22:36 2018
New Revision: 330506
URL: https://svnweb.freebsd.org/changeset/base/330506

Log:
  Pass valid if_index to rdma_addr_find_l2_eth_by_grh() in ibcore when possible.
  
  MFC after:	1 week
  Sponsored by:	Mellanox Technologies

Modified:
  head/sys/ofed/drivers/infiniband/core/ib_verbs.c

Modified: head/sys/ofed/drivers/infiniband/core/ib_verbs.c
==============================================================================
--- head/sys/ofed/drivers/infiniband/core/ib_verbs.c	Mon Mar  5 13:58:03 2018	(r330505)
+++ head/sys/ofed/drivers/infiniband/core/ib_verbs.c	Mon Mar  5 14:22:36 2018	(r330506)
@@ -483,7 +483,7 @@ int ib_init_ah_from_wc(struct ib_device *device, u8 po
 		return ret;
 
 	if (rdma_protocol_roce(device, port_num)) {
-		int if_index = 0;
+		int if_index;
 		u16 vlan_id = wc->wc_flags & IB_WC_WITH_VLAN ?
 				wc->vlan_id : 0xffff;
 		struct net_device *idev;
@@ -498,6 +498,12 @@ int ib_init_ah_from_wc(struct ib_device *device, u8 po
 		idev = device->get_netdev(device, port_num);
 		if (!idev)
 			return -ENODEV;
+
+		/*
+		 * Get network interface index early on. This is
+		 * useful for IPv6 link local addresses:
+		 */
+		if_index = idev->if_index;
 
 		ret = rdma_addr_find_l2_eth_by_grh(&dgid, &sgid,
 						   ah_attr->dmac,