[dpdk-dev] [PATCH v3 02/13] net/mlx5: modify get ifindex routine for multiport IB

[Viacheslav Ovsiienko <viacheslavo@mellanox.com>]

There is the routine mlx5_nl_ifindex() returning the
network interface index associated with Infiniband device.
We are going to support multiport IB devices, now function
takes the IB port as argument and returns ifindex associated
with tuple <IB device, IB port>

Signed-off-by: Viacheslav Ovsiienko <viacheslavo@mellanox.com>
Acked-by: Shahaf Shuler <shahafs@mellanox.com>
---
 drivers/net/mlx5/mlx5.c        |  2 +-
 drivers/net/mlx5/mlx5.h        |  2 +-
 drivers/net/mlx5/mlx5_ethdev.c |  2 +-
 drivers/net/mlx5/mlx5_nl.c     | 20 +++++++++++++-------
 4 files changed, 16 insertions(+), 10 deletions(-)

diff --git a/drivers/net/mlx5/mlx5.c b/drivers/net/mlx5/mlx5.c
index aac1966..e8631a9 100644
--- a/drivers/net/mlx5/mlx5.c
+++ b/drivers/net/mlx5/mlx5.c
@@ -1455,7 +1455,7 @@ struct mlx5_dev_spawn_data {
 			list[i].ifindex = 0;
 		else
 			list[i].ifindex = mlx5_nl_ifindex
-				(nl_rdma, list[i].ibv_dev->name);
+				(nl_rdma, list[i].ibv_dev->name, 1);
 		if (nl_route < 0 ||
 		    !list[i].ifindex ||
 		    mlx5_nl_switch_info(nl_route, list[i].ifindex,
diff --git a/drivers/net/mlx5/mlx5.h b/drivers/net/mlx5/mlx5.h
index a34e5cc..f359ed6 100644
--- a/drivers/net/mlx5/mlx5.h
+++ b/drivers/net/mlx5/mlx5.h
@@ -445,7 +445,7 @@ int mlx5_nl_mac_addr_remove(struct rte_eth_dev *dev, struct ether_addr *mac,
 void mlx5_nl_mac_addr_flush(struct rte_eth_dev *dev);
 int mlx5_nl_promisc(struct rte_eth_dev *dev, int enable);
 int mlx5_nl_allmulti(struct rte_eth_dev *dev, int enable);
-unsigned int mlx5_nl_ifindex(int nl, const char *name);
+unsigned int mlx5_nl_ifindex(int nl, const char *name, uint32_t pindex);
 int mlx5_nl_switch_info(int nl, unsigned int ifindex,
 			struct mlx5_switch_info *info);
 
diff --git a/drivers/net/mlx5/mlx5_ethdev.c b/drivers/net/mlx5/mlx5_ethdev.c
index 933839c..2b83898 100644
--- a/drivers/net/mlx5/mlx5_ethdev.c
+++ b/drivers/net/mlx5/mlx5_ethdev.c
@@ -222,7 +222,7 @@ struct ethtool_link_settings {
 	struct mlx5_priv *priv = dev->data->dev_private;
 	unsigned int ifindex =
 		priv->nl_socket_rdma >= 0 ?
-		mlx5_nl_ifindex(priv->nl_socket_rdma, priv->ibdev_name) : 0;
+		mlx5_nl_ifindex(priv->nl_socket_rdma, priv->ibdev_name, 1) : 0;
 
 	if (!ifindex) {
 		if (!priv->representor)
diff --git a/drivers/net/mlx5/mlx5_nl.c b/drivers/net/mlx5/mlx5_nl.c
index d045b95..cdf6eb6 100644
--- a/drivers/net/mlx5/mlx5_nl.c
+++ b/drivers/net/mlx5/mlx5_nl.c
@@ -85,11 +85,12 @@ struct mlx5_nl_mac_addr {
 	int mac_n; /**< Number of addresses in the array. */
 };
 
-/** Data structure used by mlx5_nl_ifindex_cb(). */
+/** Data structure used by mlx5_nl_cmdget_cb(). */
 struct mlx5_nl_ifindex_data {
 	const char *name; /**< IB device name (in). */
 	uint32_t ibindex; /**< IB device index (out). */
 	uint32_t ifindex; /**< Network interface index (out). */
+	uint32_t portnum; /**< IB device max port number. */
 };
 
 /**
@@ -695,12 +696,13 @@ struct mlx5_nl_ifindex_data {
  *   0 on success, a negative errno value otherwise and rte_errno is set.
  */
 static int
-mlx5_nl_ifindex_cb(struct nlmsghdr *nh, void *arg)
+mlx5_nl_cmdget_cb(struct nlmsghdr *nh, void *arg)
 {
 	struct mlx5_nl_ifindex_data *data = arg;
 	size_t off = NLMSG_HDRLEN;
 	uint32_t ibindex = 0;
 	uint32_t ifindex = 0;
+	uint32_t portnum = 0;
 	int found = 0;
 
 	if (nh->nlmsg_type !=
@@ -725,6 +727,9 @@ struct mlx5_nl_ifindex_data {
 		case RDMA_NLDEV_ATTR_NDEV_INDEX:
 			ifindex = *(uint32_t *)payload;
 			break;
+		case RDMA_NLDEV_ATTR_PORT_INDEX:
+			portnum = *(uint32_t *)payload;
+			break;
 		default:
 			break;
 		}
@@ -733,6 +738,7 @@ struct mlx5_nl_ifindex_data {
 	if (found) {
 		data->ibindex = ibindex;
 		data->ifindex = ifindex;
+		data->portnum = portnum;
 	}
 	return 0;
 error:
@@ -751,15 +757,15 @@ struct mlx5_nl_ifindex_data {
  *   Netlink socket of the RDMA kind (NETLINK_RDMA).
  * @param[in] name
  *   IB device name.
- *
+ * @param[in] pindex
+ *   IB device port index, starting from 1
  * @return
  *   A valid (nonzero) interface index on success, 0 otherwise and rte_errno
  *   is set.
  */
 unsigned int
-mlx5_nl_ifindex(int nl, const char *name)
+mlx5_nl_ifindex(int nl, const char *name, uint32_t pindex)
 {
-	static const uint32_t pindex = 1;
 	uint32_t seq = random();
 	struct mlx5_nl_ifindex_data data = {
 		.name = name,
@@ -785,7 +791,7 @@ struct mlx5_nl_ifindex_data {
 	ret = mlx5_nl_send(nl, &req.nh, seq);
 	if (ret < 0)
 		return 0;
-	ret = mlx5_nl_recv(nl, seq, mlx5_nl_ifindex_cb, &data);
+	ret = mlx5_nl_recv(nl, seq, mlx5_nl_cmdget_cb, &data);
 	if (ret < 0)
 		return 0;
 	if (!data.ibindex)
@@ -808,7 +814,7 @@ struct mlx5_nl_ifindex_data {
 	ret = mlx5_nl_send(nl, &req.nh, seq);
 	if (ret < 0)
 		return 0;
-	ret = mlx5_nl_recv(nl, seq, mlx5_nl_ifindex_cb, &data);
+	ret = mlx5_nl_recv(nl, seq, mlx5_nl_cmdget_cb, &data);
 	if (ret < 0)
 		return 0;
 	if (!data.ifindex)
-- 
1.8.3.1