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| author | Mark Zhang <markz@mellanox.com> | 2019-07-02 13:02:45 +0300 |
|---|---|---|
| committer | Jason Gunthorpe <jgg@mellanox.com> | 2019-07-05 10:22:55 -0300 |
| commit | 83c2c1fcbd08ec3eb69a7f381c4e453d1a45ade3 (patch) | |
| tree | 08bdc708aef1cb9578e4d2fbebd4b72491206fc4 /drivers/infiniband/core/nldev.c | |
| parent | b389327df90530d47931d0f5616b5cd6abb96c96 (diff) | |
| download | linux-83c2c1fcbd08ec3eb69a7f381c4e453d1a45ade3.tar.bz2 | |
RDMA/nldev: Allow get counter mode through RDMA netlink
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>
Diffstat (limited to 'drivers/infiniband/core/nldev.c')
| -rw-r--r-- | drivers/infiniband/core/nldev.c | 66 |
1 files changed, 65 insertions, 1 deletions
diff --git a/drivers/infiniband/core/nldev.c b/drivers/infiniband/core/nldev.c index 3d750eca53d5..4993f47b0731 100644 --- a/drivers/infiniband/core/nldev.c +++ b/drivers/infiniband/core/nldev.c @@ -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: |