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RDMA/nldev: Allow get counter mode through RDMA netlink

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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>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
This commit is contained in:
Mark Zhang 2019-07-02 13:02:45 +03:00 committed by Jason Gunthorpe
parent b389327df9
commit 83c2c1fcbd
2 changed files with 78 additions and 1 deletions
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13
drivers/infiniband/core/counters.c
View File

@ -576,6 +576,19 @@ out:
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;

66
drivers/infiniband/core/nldev.c
View File

@ -1799,6 +1799,70 @@ err:
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)
{
@ -1812,7 +1876,7 @@ 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: