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From: Leon Romanovsky <leon@kernel.org>
To: Doug Ledford <dledford@redhat.com>, Jason Gunthorpe <jgg@mellanox.com>
Cc: Leon Romanovsky <leonro@mellanox.com>,
	RDMA mailing list <linux-rdma@vger.kernel.org>,
	Majd Dibbiny <majd@mellanox.com>, Mark Zhang <markz@mellanox.com>,
	Saeed Mahameed <saeedm@mellanox.com>,
	linux-netdev <netdev@vger.kernel.org>
Subject: [PATCH rdma-next v4 16/17] RDMA/nldev: Allow get counter mode through RDMA netlink
Date: Tue, 18 Jun 2019 20:26:24 +0300
Message-ID: <20190618172625.13432-17-leon@kernel.org> (raw)
In-Reply-To: <20190618172625.13432-1-leon@kernel.org>

From: Mark Zhang <markz@mellanox.com>

Provide an option to get current counter mode through RDMA netlink.

Signed-off-by: Mark Zhang <markz@mellanox.com>
Reviewed-by: Majd Dibbiny <majd@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
---
 drivers/infiniband/core/counters.c | 13 ++++++
 drivers/infiniband/core/nldev.c    | 66 +++++++++++++++++++++++++++++-
 2 files changed, 78 insertions(+), 1 deletion(-)

diff --git a/drivers/infiniband/core/counters.c b/drivers/infiniband/core/counters.c
index 15f94d96e23b..b4ba240599bc 100644
--- a/drivers/infiniband/core/counters.c
+++ b/drivers/infiniband/core/counters.c
@@ -605,6 +605,19 @@ int rdma_counter_unbind_qpn(struct ib_device *dev, u8 port,
 	return ret;
 }

+int rdma_counter_get_mode(struct ib_device *dev, u8 port,
+			  enum rdma_nl_counter_mode *mode,
+			  enum rdma_nl_counter_mask *mask)
+{
+	struct rdma_port_counter *port_counter;
+
+	port_counter = &dev->port_data[port].port_counter;
+	*mode = port_counter->mode.mode;
+	*mask = port_counter->mode.mask;
+
+	return 0;
+}
+
 void rdma_counter_init(struct ib_device *dev)
 {
 	struct rdma_port_counter *port_counter;
diff --git a/drivers/infiniband/core/nldev.c b/drivers/infiniband/core/nldev.c
index 9ee6c0c77f2f..ccbc85d692e1 100644
--- a/drivers/infiniband/core/nldev.c
+++ b/drivers/infiniband/core/nldev.c
@@ -1705,6 +1705,70 @@ static int nldev_stat_del_doit(struct sk_buff *skb, struct nlmsghdr *nlh,
 	return ret;
 }

+static int stat_get_doit_qp(struct sk_buff *skb, struct nlmsghdr *nlh,
+			    struct netlink_ext_ack *extack, struct nlattr *tb[])
+
+{
+	static enum rdma_nl_counter_mode mode;
+	static enum rdma_nl_counter_mask mask;
+	struct ib_device *device;
+	struct sk_buff *msg;
+	u32 index, port;
+	int ret;
+
+	if (tb[RDMA_NLDEV_ATTR_STAT_COUNTER_ID])
+		return nldev_res_get_counter_doit(skb, nlh, extack);
+
+	if (!tb[RDMA_NLDEV_ATTR_STAT_MODE] ||
+	    !tb[RDMA_NLDEV_ATTR_DEV_INDEX] || !tb[RDMA_NLDEV_ATTR_PORT_INDEX])
+		return -EINVAL;
+
+	index = nla_get_u32(tb[RDMA_NLDEV_ATTR_DEV_INDEX]);
+	device = ib_device_get_by_index(sock_net(skb->sk), index);
+	if (!device)
+		return -EINVAL;
+
+	port = nla_get_u32(tb[RDMA_NLDEV_ATTR_PORT_INDEX]);
+	if (!rdma_is_port_valid(device, port)) {
+		ret = -EINVAL;
+		goto err;
+	}
+
+	msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
+	if (!msg) {
+		ret = -ENOMEM;
+		goto err;
+	}
+
+	nlh = nlmsg_put(msg, NETLINK_CB(skb).portid, nlh->nlmsg_seq,
+			RDMA_NL_GET_TYPE(RDMA_NL_NLDEV,
+					 RDMA_NLDEV_CMD_STAT_GET),
+			0, 0);
+
+	ret = rdma_counter_get_mode(device, port, &mode, &mask);
+	if (ret)
+		goto err_msg;
+
+	if (fill_nldev_handle(msg, device) ||
+	    nla_put_u32(msg, RDMA_NLDEV_ATTR_PORT_INDEX, port) ||
+	    nla_put_u32(msg, RDMA_NLDEV_ATTR_STAT_MODE, mode))
+		goto err_msg;
+
+	if ((mode == RDMA_COUNTER_MODE_AUTO) &&
+	    nla_put_u32(msg, RDMA_NLDEV_ATTR_STAT_AUTO_MODE_MASK, mask))
+		goto err_msg;
+
+	nlmsg_end(msg, nlh);
+	ib_device_put(device);
+	return rdma_nl_unicast(msg, NETLINK_CB(skb).portid);
+
+err_msg:
+	nlmsg_free(msg);
+err:
+	ib_device_put(device);
+	return ret;
+}
+
 static int nldev_stat_get_doit(struct sk_buff *skb, struct nlmsghdr *nlh,
 			       struct netlink_ext_ack *extack)
 {
@@ -1718,7 +1782,7 @@ static int nldev_stat_get_doit(struct sk_buff *skb, struct nlmsghdr *nlh,

 	switch (nla_get_u32(tb[RDMA_NLDEV_ATTR_STAT_RES])) {
 	case RDMA_NLDEV_ATTR_RES_QP:
-		ret = nldev_res_get_counter_doit(skb, nlh, extack);
+		ret = stat_get_doit_qp(skb, nlh, extack, tb);
 		break;

 	default:
--
2.20.1


  parent reply index

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-06-18 17:26 [PATCH rdma-next v4 00/17] Statistics counter support Leon Romanovsky
2019-06-18 17:26 ` [PATCH mlx5-next v4 01/17] net/mlx5: Add rts2rts_qp_counters_set_id field in hca cap Leon Romanovsky
2019-06-18 18:47   ` Saeed Mahameed
2019-06-18 17:26 ` [PATCH rdma-next v4 02/17] RDMA/restrack: Introduce statistic counter Leon Romanovsky
2019-06-18 17:26 ` [PATCH rdma-next v4 03/17] RDMA/restrack: Add an API to attach a task to a resource Leon Romanovsky
2019-06-18 17:26 ` [PATCH rdma-next v4 04/17] RDMA/restrack: Make is_visible_in_pid_ns() as an API Leon Romanovsky
2019-06-18 17:26 ` [PATCH rdma-next v4 05/17] RDMA/counter: Add set/clear per-port auto mode support Leon Romanovsky
2019-06-18 17:26 ` [PATCH rdma-next v4 06/17] RDMA/counter: Add "auto" configuration " Leon Romanovsky
2019-06-30  0:32   ` Jason Gunthorpe
2019-06-30  0:40   ` Jason Gunthorpe
2019-07-01  8:42     ` Leon Romanovsky
2019-06-18 17:26 ` [PATCH mlx5-next v4 07/17] IB/mlx5: Support set qp counter Leon Romanovsky
2019-06-18 18:49   ` Saeed Mahameed
2019-06-18 17:26 ` [PATCH rdma-next v4 08/17] IB/mlx5: Add counter set id as a parameter for mlx5_ib_query_q_counters() Leon Romanovsky
2019-06-18 17:26 ` [PATCH rdma-next v4 09/17] IB/mlx5: Support statistic q counter configuration Leon Romanovsky
2019-06-18 17:26 ` [PATCH rdma-next v4 10/17] RDMA/nldev: Allow counter auto mode configration through RDMA netlink Leon Romanovsky
2019-06-18 17:26 ` [PATCH rdma-next v4 11/17] RDMA/netlink: Implement counter dumpit calback Leon Romanovsky
2019-06-18 17:26 ` [PATCH rdma-next v4 12/17] IB/mlx5: Add counter_alloc_stats() and counter_update_stats() support Leon Romanovsky
2019-06-18 17:26 ` [PATCH rdma-next v4 13/17] RDMA/core: Get sum value of all counters when perform a sysfs stat read Leon Romanovsky
2019-06-18 17:26 ` [PATCH rdma-next v4 14/17] RDMA/counter: Allow manual mode configuration support Leon Romanovsky
2019-06-18 17:26 ` [PATCH rdma-next v4 15/17] RDMA/nldev: Allow counter manual mode configration through RDMA netlink Leon Romanovsky
2019-06-18 17:26 ` Leon Romanovsky [this message]
2019-06-18 17:26 ` [PATCH rdma-next v4 17/17] RDMA/nldev: Allow get default counter statistics " Leon Romanovsky

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