diff options
Diffstat (limited to 'drivers/infiniband/core/nldev.c')
| -rw-r--r-- | drivers/infiniband/core/nldev.c | 187 |
1 files changed, 159 insertions, 28 deletions
diff --git a/drivers/infiniband/core/nldev.c b/drivers/infiniband/core/nldev.c index a6b80cdc96f7..39f89a4b8649 100644 --- a/drivers/infiniband/core/nldev.c +++ b/drivers/infiniband/core/nldev.c @@ -170,6 +170,7 @@ static const struct nla_policy nldev_policy[RDMA_NLDEV_ATTR_MAX] = { [RDMA_NLDEV_ATTR_DEV_TYPE] = { .type = NLA_U8 }, [RDMA_NLDEV_ATTR_PARENT_NAME] = { .type = NLA_NUL_STRING }, [RDMA_NLDEV_ATTR_NAME_ASSIGN_TYPE] = { .type = NLA_U8 }, + [RDMA_NLDEV_ATTR_EVENT_TYPE] = { .type = NLA_U8 }, }; static int put_driver_name_print_type(struct sk_buff *msg, const char *name, @@ -1074,8 +1075,8 @@ static int nldev_get_doit(struct sk_buff *skb, struct nlmsghdr *nlh, u32 index; int err; - err = nlmsg_parse_deprecated(nlh, 0, tb, RDMA_NLDEV_ATTR_MAX - 1, - nldev_policy, extack); + err = __nlmsg_parse(nlh, 0, tb, RDMA_NLDEV_ATTR_MAX - 1, + nldev_policy, NL_VALIDATE_LIBERAL, extack); if (err || !tb[RDMA_NLDEV_ATTR_DEV_INDEX]) return -EINVAL; @@ -1123,8 +1124,8 @@ static int nldev_set_doit(struct sk_buff *skb, struct nlmsghdr *nlh, u32 index; int err; - err = nlmsg_parse_deprecated(nlh, 0, tb, RDMA_NLDEV_ATTR_MAX - 1, - nldev_policy, extack); + err = nlmsg_parse(nlh, 0, tb, RDMA_NLDEV_ATTR_MAX - 1, + nldev_policy, extack); if (err || !tb[RDMA_NLDEV_ATTR_DEV_INDEX]) return -EINVAL; @@ -1215,8 +1216,8 @@ static int nldev_port_get_doit(struct sk_buff *skb, struct nlmsghdr *nlh, u32 port; int err; - err = nlmsg_parse_deprecated(nlh, 0, tb, RDMA_NLDEV_ATTR_MAX - 1, - nldev_policy, extack); + err = __nlmsg_parse(nlh, 0, tb, RDMA_NLDEV_ATTR_MAX - 1, + nldev_policy, NL_VALIDATE_LIBERAL, extack); if (err || !tb[RDMA_NLDEV_ATTR_DEV_INDEX] || !tb[RDMA_NLDEV_ATTR_PORT_INDEX]) @@ -1275,8 +1276,8 @@ static int nldev_port_get_dumpit(struct sk_buff *skb, int err; unsigned int p; - err = nlmsg_parse_deprecated(cb->nlh, 0, tb, RDMA_NLDEV_ATTR_MAX - 1, - nldev_policy, NULL); + err = __nlmsg_parse(cb->nlh, 0, tb, RDMA_NLDEV_ATTR_MAX - 1, + nldev_policy, NL_VALIDATE_LIBERAL, NULL); if (err || !tb[RDMA_NLDEV_ATTR_DEV_INDEX]) return -EINVAL; @@ -1331,8 +1332,8 @@ static int nldev_res_get_doit(struct sk_buff *skb, struct nlmsghdr *nlh, u32 index; int ret; - ret = nlmsg_parse_deprecated(nlh, 0, tb, RDMA_NLDEV_ATTR_MAX - 1, - nldev_policy, extack); + ret = __nlmsg_parse(nlh, 0, tb, RDMA_NLDEV_ATTR_MAX - 1, + nldev_policy, NL_VALIDATE_LIBERAL, extack); if (ret || !tb[RDMA_NLDEV_ATTR_DEV_INDEX]) return -EINVAL; @@ -1481,8 +1482,8 @@ static int res_get_common_doit(struct sk_buff *skb, struct nlmsghdr *nlh, struct sk_buff *msg; int ret; - ret = nlmsg_parse_deprecated(nlh, 0, tb, RDMA_NLDEV_ATTR_MAX - 1, - nldev_policy, extack); + ret = __nlmsg_parse(nlh, 0, tb, RDMA_NLDEV_ATTR_MAX - 1, + nldev_policy, NL_VALIDATE_LIBERAL, extack); if (ret || !tb[RDMA_NLDEV_ATTR_DEV_INDEX] || !fe->id || !tb[fe->id]) return -EINVAL; @@ -1569,8 +1570,8 @@ static int res_get_common_dumpit(struct sk_buff *skb, u32 index, port = 0; bool filled = false; - err = nlmsg_parse_deprecated(cb->nlh, 0, tb, RDMA_NLDEV_ATTR_MAX - 1, - nldev_policy, NULL); + err = __nlmsg_parse(cb->nlh, 0, tb, RDMA_NLDEV_ATTR_MAX - 1, + nldev_policy, NL_VALIDATE_LIBERAL, NULL); /* * Right now, we are expecting the device index to get res information, * but it is possible to extend this code to return all devices in @@ -1762,8 +1763,8 @@ static int nldev_newlink(struct sk_buff *skb, struct nlmsghdr *nlh, char type[IFNAMSIZ]; int err; - err = nlmsg_parse_deprecated(nlh, 0, tb, RDMA_NLDEV_ATTR_MAX - 1, - nldev_policy, extack); + err = nlmsg_parse(nlh, 0, tb, RDMA_NLDEV_ATTR_MAX - 1, + nldev_policy, extack); if (err || !tb[RDMA_NLDEV_ATTR_DEV_NAME] || !tb[RDMA_NLDEV_ATTR_LINK_TYPE] || !tb[RDMA_NLDEV_ATTR_NDEV_NAME]) return -EINVAL; @@ -1806,8 +1807,8 @@ static int nldev_dellink(struct sk_buff *skb, struct nlmsghdr *nlh, u32 index; int err; - err = nlmsg_parse_deprecated(nlh, 0, tb, RDMA_NLDEV_ATTR_MAX - 1, - nldev_policy, extack); + err = nlmsg_parse(nlh, 0, tb, RDMA_NLDEV_ATTR_MAX - 1, + nldev_policy, extack); if (err || !tb[RDMA_NLDEV_ATTR_DEV_INDEX]) return -EINVAL; @@ -1836,8 +1837,8 @@ static int nldev_get_chardev(struct sk_buff *skb, struct nlmsghdr *nlh, u32 index; int err; - err = nlmsg_parse(nlh, 0, tb, RDMA_NLDEV_ATTR_MAX - 1, nldev_policy, - extack); + err = __nlmsg_parse(nlh, 0, tb, RDMA_NLDEV_ATTR_MAX - 1, nldev_policy, + NL_VALIDATE_LIBERAL, extack); if (err || !tb[RDMA_NLDEV_ATTR_CHARDEV_TYPE]) return -EINVAL; @@ -1920,8 +1921,8 @@ static int nldev_sys_get_doit(struct sk_buff *skb, struct nlmsghdr *nlh, struct sk_buff *msg; int err; - err = nlmsg_parse(nlh, 0, tb, RDMA_NLDEV_ATTR_MAX - 1, - nldev_policy, extack); + err = __nlmsg_parse(nlh, 0, tb, RDMA_NLDEV_ATTR_MAX - 1, + nldev_policy, NL_VALIDATE_LIBERAL, extack); if (err) return err; @@ -1951,6 +1952,12 @@ static int nldev_sys_get_doit(struct sk_buff *skb, struct nlmsghdr *nlh, nlmsg_free(msg); return err; } + + err = nla_put_u8(msg, RDMA_NLDEV_SYS_ATTR_MONITOR_MODE, 1); + if (err) { + nlmsg_free(msg); + return err; + } /* * Copy-on-fork is supported. * See commits: @@ -2420,8 +2427,8 @@ static int nldev_stat_get_doit(struct sk_buff *skb, struct nlmsghdr *nlh, struct nlattr *tb[RDMA_NLDEV_ATTR_MAX]; int ret; - ret = nlmsg_parse(nlh, 0, tb, RDMA_NLDEV_ATTR_MAX - 1, - nldev_policy, extack); + ret = __nlmsg_parse(nlh, 0, tb, RDMA_NLDEV_ATTR_MAX - 1, + nldev_policy, NL_VALIDATE_LIBERAL, extack); if (ret) return -EINVAL; @@ -2450,8 +2457,8 @@ static int nldev_stat_get_dumpit(struct sk_buff *skb, struct nlattr *tb[RDMA_NLDEV_ATTR_MAX]; int ret; - ret = nlmsg_parse(cb->nlh, 0, tb, RDMA_NLDEV_ATTR_MAX - 1, - nldev_policy, NULL); + ret = __nlmsg_parse(cb->nlh, 0, tb, RDMA_NLDEV_ATTR_MAX - 1, + nldev_policy, NL_VALIDATE_LIBERAL, NULL); if (ret || !tb[RDMA_NLDEV_ATTR_STAT_RES]) return -EINVAL; @@ -2482,8 +2489,8 @@ static int nldev_stat_get_counter_status_doit(struct sk_buff *skb, u32 devid, port; int ret, i; - ret = nlmsg_parse(nlh, 0, tb, RDMA_NLDEV_ATTR_MAX - 1, - nldev_policy, extack); + ret = __nlmsg_parse(nlh, 0, tb, RDMA_NLDEV_ATTR_MAX - 1, + nldev_policy, NL_VALIDATE_LIBERAL, extack); if (ret || !tb[RDMA_NLDEV_ATTR_DEV_INDEX] || !tb[RDMA_NLDEV_ATTR_PORT_INDEX]) return -EINVAL; @@ -2722,6 +2729,130 @@ static const struct rdma_nl_cbs nldev_cb_table[RDMA_NLDEV_NUM_OPS] = { }, }; +static int fill_mon_netdev_association(struct sk_buff *msg, + struct ib_device *device, u32 port, + const struct net *net) +{ + struct net_device *netdev = ib_device_get_netdev(device, port); + int ret = 0; + + if (netdev && !net_eq(dev_net(netdev), net)) + goto out; + + ret = nla_put_u32(msg, RDMA_NLDEV_ATTR_DEV_INDEX, device->index); + if (ret) + goto out; + + ret = nla_put_string(msg, RDMA_NLDEV_ATTR_DEV_NAME, + dev_name(&device->dev)); + if (ret) + goto out; + + ret = nla_put_u32(msg, RDMA_NLDEV_ATTR_PORT_INDEX, port); + if (ret) + goto out; + + if (netdev) { + ret = nla_put_u32(msg, + RDMA_NLDEV_ATTR_NDEV_INDEX, netdev->ifindex); + if (ret) + goto out; + + ret = nla_put_string(msg, + RDMA_NLDEV_ATTR_NDEV_NAME, netdev->name); + } + +out: + dev_put(netdev); + return ret; +} + +static void rdma_nl_notify_err_msg(struct ib_device *device, u32 port_num, + enum rdma_nl_notify_event_type type) +{ + struct net_device *netdev; + + switch (type) { + case RDMA_REGISTER_EVENT: + dev_warn_ratelimited(&device->dev, + "Failed to send RDMA monitor register device event\n"); + break; + case RDMA_UNREGISTER_EVENT: + dev_warn_ratelimited(&device->dev, + "Failed to send RDMA monitor unregister device event\n"); + break; + case RDMA_NETDEV_ATTACH_EVENT: + netdev = ib_device_get_netdev(device, port_num); + dev_warn_ratelimited(&device->dev, + "Failed to send RDMA monitor netdev attach event: port %d netdev %d\n", + port_num, netdev->ifindex); + dev_put(netdev); + break; + case RDMA_NETDEV_DETACH_EVENT: + dev_warn_ratelimited(&device->dev, + "Failed to send RDMA monitor netdev detach event: port %d\n", + port_num); + break; + default: + break; + } +} + +int rdma_nl_notify_event(struct ib_device *device, u32 port_num, + enum rdma_nl_notify_event_type type) +{ + struct sk_buff *skb; + struct net *net; + int ret = 0; + void *nlh; + + net = read_pnet(&device->coredev.rdma_net); + if (!net) + return -EINVAL; + + skb = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); + if (!skb) + return -ENOMEM; + nlh = nlmsg_put(skb, 0, 0, + RDMA_NL_GET_TYPE(RDMA_NL_NLDEV, RDMA_NLDEV_CMD_MONITOR), + 0, 0); + + switch (type) { + case RDMA_REGISTER_EVENT: + case RDMA_UNREGISTER_EVENT: + ret = fill_nldev_handle(skb, device); + if (ret) + goto err_free; + break; + case RDMA_NETDEV_ATTACH_EVENT: + case RDMA_NETDEV_DETACH_EVENT: + ret = fill_mon_netdev_association(skb, device, + port_num, net); + if (ret) + goto err_free; + break; + default: + break; + } + + ret = nla_put_u8(skb, RDMA_NLDEV_ATTR_EVENT_TYPE, type); + if (ret) + goto err_free; + + nlmsg_end(skb, nlh); + ret = rdma_nl_multicast(net, skb, RDMA_NL_GROUP_NOTIFY, GFP_KERNEL); + if (ret && ret != -ESRCH) { + skb = NULL; /* skb is freed in the netlink send-op handling */ + goto err_free; + } + return 0; + +err_free: + rdma_nl_notify_err_msg(device, port_num, type); + nlmsg_free(skb); + return ret; +} + void __init nldev_init(void) { rdma_nl_register(RDMA_NL_NLDEV, nldev_cb_table); |