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RDMA/nldev: Allow counter auto mode configration through RDMA netlink
Provide an option to enable/disable per-port counter auto mode through RDMA netlink. Limit it to users with ADMIN capability only. 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>
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45842fc627
commit
b47ae6f803
2 changed files with 86 additions and 0 deletions
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@ -126,6 +126,9 @@ static const struct nla_policy nldev_policy[RDMA_NLDEV_ATTR_MAX] = {
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[RDMA_NLDEV_ATTR_RES_USECNT] = { .type = NLA_U64 },
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[RDMA_NLDEV_ATTR_SM_LID] = { .type = NLA_U32 },
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[RDMA_NLDEV_ATTR_SUBNET_PREFIX] = { .type = NLA_U64 },
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[RDMA_NLDEV_ATTR_STAT_AUTO_MODE_MASK] = { .type = NLA_U32 },
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[RDMA_NLDEV_ATTR_STAT_MODE] = { .type = NLA_U32 },
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[RDMA_NLDEV_ATTR_STAT_RES] = { .type = NLA_U32 },
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[RDMA_NLDEV_ATTR_SYS_IMAGE_GUID] = { .type = NLA_U64 },
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[RDMA_NLDEV_ATTR_UVERBS_DRIVER_ID] = { .type = NLA_U32 },
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[RDMA_NLDEV_NET_NS_FD] = { .type = NLA_U32 },
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@ -1482,6 +1485,78 @@ static int nldev_set_sys_set_doit(struct sk_buff *skb, struct nlmsghdr *nlh,
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return err;
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}
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static int nldev_stat_set_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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u32 index, port, mode, mask = 0;
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struct ib_device *device;
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struct sk_buff *msg;
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int ret;
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ret = nlmsg_parse(nlh, 0, tb, RDMA_NLDEV_ATTR_MAX - 1,
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nldev_policy, extack);
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/* Currently only counter for QP is supported */
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if (ret || !tb[RDMA_NLDEV_ATTR_STAT_RES] ||
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!tb[RDMA_NLDEV_ATTR_DEV_INDEX] ||
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!tb[RDMA_NLDEV_ATTR_PORT_INDEX] || !tb[RDMA_NLDEV_ATTR_STAT_MODE])
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return -EINVAL;
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if (nla_get_u32(tb[RDMA_NLDEV_ATTR_STAT_RES]) != RDMA_NLDEV_ATTR_RES_QP)
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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(sock_net(skb->sk), 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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ret = -EINVAL;
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goto err;
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}
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msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
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if (!msg) {
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ret = -ENOMEM;
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goto err;
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}
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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,
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RDMA_NLDEV_CMD_STAT_SET),
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0, 0);
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mode = nla_get_u32(tb[RDMA_NLDEV_ATTR_STAT_MODE]);
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if (mode != RDMA_COUNTER_MODE_AUTO) {
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ret = -EMSGSIZE;
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goto err_msg;
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}
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if (tb[RDMA_NLDEV_ATTR_STAT_AUTO_MODE_MASK])
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mask = nla_get_u32(tb[RDMA_NLDEV_ATTR_STAT_AUTO_MODE_MASK]);
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ret = rdma_counter_set_auto_mode(device, port,
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mask ? true : false, mask);
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if (ret)
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goto err_msg;
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if (nla_put_u32(msg, RDMA_NLDEV_ATTR_STAT_MODE, mode) ||
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nla_put_u32(msg, RDMA_NLDEV_ATTR_STAT_AUTO_MODE_MASK, mask)) {
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ret = -EMSGSIZE;
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goto err_msg;
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}
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nlmsg_end(msg, nlh);
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ib_device_put(device);
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return rdma_nl_unicast(msg, NETLINK_CB(skb).portid);
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err_msg:
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nlmsg_free(msg);
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err:
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ib_device_put(device);
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return ret;
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}
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static const struct rdma_nl_cbs nldev_cb_table[RDMA_NLDEV_NUM_OPS] = {
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[RDMA_NLDEV_CMD_GET] = {
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.doit = nldev_get_doit,
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@ -1535,6 +1610,9 @@ static const struct rdma_nl_cbs nldev_cb_table[RDMA_NLDEV_NUM_OPS] = {
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},
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[RDMA_NLDEV_CMD_SYS_SET] = {
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.doit = nldev_set_sys_set_doit,
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},
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[RDMA_NLDEV_CMD_STAT_SET] = {
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.doit = nldev_stat_set_doit,
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.flags = RDMA_NL_ADMIN_PERM,
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},
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};
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@ -281,6 +281,8 @@ enum rdma_nldev_command {
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RDMA_NLDEV_CMD_GET_CHARDEV,
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RDMA_NLDEV_CMD_STAT_SET,
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RDMA_NLDEV_NUM_OPS
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};
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@ -488,6 +490,12 @@ enum rdma_nldev_attr {
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* File descriptor handle of the net namespace object
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*/
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RDMA_NLDEV_NET_NS_FD, /* u32 */
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/*
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* Counter-specific attributes.
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*/
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RDMA_NLDEV_ATTR_STAT_MODE, /* u32 */
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RDMA_NLDEV_ATTR_STAT_RES, /* u32 */
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RDMA_NLDEV_ATTR_STAT_AUTO_MODE_MASK, /* u32 */
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/*
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* Information about a chardev.
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