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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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RDMA/netlink: Implement nldev port doit callback
Provide ability to get specific to device and port information. Signed-off-by: Leon Romanovsky <leonro@mellanox.com> Reviewed-by: Steve Wise <swise@opengridcomputing.com>
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@ -141,6 +141,49 @@ static int nldev_get_dumpit(struct sk_buff *skb, struct netlink_callback *cb)
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return ib_enum_all_devs(_nldev_get_dumpit, skb, cb);
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}
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static int nldev_port_get_doit(struct sk_buff *skb, struct nlmsghdr *nlh,
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struct netlink_ext_ack *extack)
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{
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struct nlattr *tb[RDMA_NLDEV_ATTR_MAX];
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struct ib_device *device;
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struct sk_buff *msg;
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u32 index;
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u32 port;
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int err;
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err = nlmsg_parse(nlh, 0, tb, RDMA_NLDEV_ATTR_MAX - 1,
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nldev_policy, extack);
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if (err || !tb[RDMA_NLDEV_ATTR_PORT_INDEX])
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return -EINVAL;
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index = nla_get_u32(tb[RDMA_NLDEV_ATTR_DEV_INDEX]);
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device = __ib_device_get_by_index(index);
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if (!device)
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return -EINVAL;
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port = nla_get_u32(tb[RDMA_NLDEV_ATTR_PORT_INDEX]);
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if (!rdma_is_port_valid(device, port))
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return -EINVAL;
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msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
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if (!msg)
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return -ENOMEM;
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nlh = nlmsg_put(msg, NETLINK_CB(skb).portid, nlh->nlmsg_seq,
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RDMA_NL_GET_TYPE(RDMA_NL_NLDEV, RDMA_NLDEV_CMD_GET),
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0, 0);
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err = fill_port_info(msg, device, port);
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if (err) {
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nlmsg_free(msg);
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return err;
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}
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nlmsg_end(msg, nlh);
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return rdma_nl_unicast(msg, NETLINK_CB(skb).portid);
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}
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static int nldev_port_get_dumpit(struct sk_buff *skb,
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struct netlink_callback *cb)
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{
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@ -203,6 +246,7 @@ static const struct rdma_nl_cbs nldev_cb_table[] = {
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.dump = nldev_get_dumpit,
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},
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[RDMA_NLDEV_CMD_PORT_GET] = {
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.doit = nldev_port_get_doit,
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.dump = nldev_port_get_dumpit,
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},
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};
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