static int
nfp_flower_remove_rate_limiter(struct nfp_app *app, struct net_device *netdev,
struct tc_cls_matchall_offload *flow,
struct netlink_ext_ack *extack)
{
struct nfp_flower_priv *fl_priv = app->priv;
struct nfp_flower_repr_priv *repr_priv;
struct nfp_police_config *config;
struct nfp_repr *repr;
struct sk_buff *skb;
u32 netdev_port_id;
if (!nfp_netdev_is_nfp_repr(netdev)) {
NL_SET_ERR_MSG_MOD(extack, "unsupported offload: qos rate limit offload not supported on higher level port");
return -EOPNOTSUPP;
}
repr = netdev_priv(netdev);
netdev_port_id = nfp_repr_get_port_id(netdev);
repr_priv = repr->app_priv;
if (!repr_priv->qos_table.netdev_port_id) {
NL_SET_ERR_MSG_MOD(extack, "unsupported offload: cannot remove qos entry that does not exist");
return -EOPNOTSUPP;
}
skb = nfp_flower_cmsg_alloc(repr->app, sizeof(struct nfp_police_config),
NFP_FLOWER_CMSG_TYPE_QOS_DEL, GFP_KERNEL);
if (!skb)
return -ENOMEM;
/* Clear all qos associate data for this interface */
memset(&repr_priv->qos_table, 0, sizeof(struct nfp_fl_qos));
fl_priv->qos_rate_limiters--;
if (!fl_priv->qos_rate_limiters)
cancel_delayed_work_sync(&fl_priv->qos_stats_work);
config = nfp_flower_cmsg_get_data(skb);
memset(config, 0, sizeof(struct nfp_police_config));
config->head.port = cpu_to_be32(netdev_port_id);
nfp_ctrl_tx(repr->app->ctrl, skb);
return 0;
}
static void
nfp_flower_stats_rlim_request(struct nfp_flower_priv *fl_priv,
u32 netdev_port_id)
{
struct nfp_police_cfg_head *head;
struct sk_buff *skb;
skb = nfp_flower_cmsg_alloc(fl_priv->app,
sizeof(struct nfp_police_cfg_head),
NFP_FLOWER_CMSG_TYPE_QOS_STATS,
GFP_ATOMIC);
if (!skb)
return;
head = nfp_flower_cmsg_get_data(skb);
memset(head, 0, sizeof(struct nfp_police_cfg_head));
head->port = cpu_to_be32(netdev_port_id);
nfp_ctrl_tx(fl_priv->app->ctrl, skb);
}
int nfp_flower_cmsg_portreify(struct nfp_repr *repr, bool exists)
{
struct nfp_flower_cmsg_portreify *msg;
struct sk_buff *skb;
skb = nfp_flower_cmsg_alloc(repr->app, sizeof(*msg),
NFP_FLOWER_CMSG_TYPE_PORT_REIFY,
GFP_KERNEL);
if (!skb)
return -ENOMEM;
msg = nfp_flower_cmsg_get_data(skb);
msg->portnum = cpu_to_be32(repr->dst->u.port_info.port_id);
msg->reserved = 0;
msg->info = cpu_to_be16(exists);
nfp_ctrl_tx(repr->app->ctrl, skb);
return 0;
}
int nfp_flower_cmsg_portmod(struct nfp_repr *repr, bool carrier_ok)
{
struct nfp_flower_cmsg_portmod *msg;
struct sk_buff *skb;
skb = nfp_flower_cmsg_alloc(repr->app, sizeof(*msg),
NFP_FLOWER_CMSG_TYPE_PORT_MOD, GFP_KERNEL);
if (!skb)
return -ENOMEM;
msg = nfp_flower_cmsg_get_data(skb);
msg->portnum = cpu_to_be32(repr->dst->u.port_info.port_id);
msg->reserved = 0;
msg->info = carrier_ok;
msg->mtu = cpu_to_be16(repr->netdev->mtu);
nfp_ctrl_tx(repr->app->ctrl, skb);
return 0;
}
static int
nfp_flower_install_rate_limiter(struct nfp_app *app, struct net_device *netdev,
struct tc_cls_matchall_offload *flow,
struct netlink_ext_ack *extack)
{
struct flow_action_entry *action = &flow->rule->action.entries[0];
struct nfp_flower_priv *fl_priv = app->priv;
struct nfp_flower_repr_priv *repr_priv;
struct nfp_police_config *config;
struct nfp_repr *repr;
struct sk_buff *skb;
u32 netdev_port_id;
u64 burst, rate;
if (!nfp_netdev_is_nfp_repr(netdev)) {
NL_SET_ERR_MSG_MOD(extack, "unsupported offload: qos rate limit offload not supported on higher level port");
return -EOPNOTSUPP;
}
repr = netdev_priv(netdev);
repr_priv = repr->app_priv;
if (repr_priv->block_shared) {
NL_SET_ERR_MSG_MOD(extack, "unsupported offload: qos rate limit offload not supported on shared blocks");
return -EOPNOTSUPP;
}
if (repr->port->type != NFP_PORT_VF_PORT) {
NL_SET_ERR_MSG_MOD(extack, "unsupported offload: qos rate limit offload not supported on non-VF ports");
return -EOPNOTSUPP;
}
if (!flow_offload_has_one_action(&flow->rule->action)) {
NL_SET_ERR_MSG_MOD(extack, "unsupported offload: qos rate limit offload requires a single action");
return -EOPNOTSUPP;
}
if (flow->common.prio != (1 << 16)) {
NL_SET_ERR_MSG_MOD(extack, "unsupported offload: qos rate limit offload requires highest priority");
return -EOPNOTSUPP;
}
if (action->id != FLOW_ACTION_POLICE) {
NL_SET_ERR_MSG_MOD(extack, "unsupported offload: qos rate limit offload requires police action");
return -EOPNOTSUPP;
}
rate = action->police.rate_bytes_ps;
burst = div_u64(rate * PSCHED_NS2TICKS(action->police.burst),
PSCHED_TICKS_PER_SEC);
netdev_port_id = nfp_repr_get_port_id(netdev);
skb = nfp_flower_cmsg_alloc(repr->app, sizeof(struct nfp_police_config),
NFP_FLOWER_CMSG_TYPE_QOS_MOD, GFP_KERNEL);
if (!skb)
return -ENOMEM;
config = nfp_flower_cmsg_get_data(skb);
memset(config, 0, sizeof(struct nfp_police_config));
config->head.port = cpu_to_be32(netdev_port_id);
config->bkt_tkn_p = cpu_to_be32(burst);
config->bkt_tkn_c = cpu_to_be32(burst);
config->pbs = cpu_to_be32(burst);
config->cbs = cpu_to_be32(burst);
config->pir = cpu_to_be32(rate);
config->cir = cpu_to_be32(rate);
nfp_ctrl_tx(repr->app->ctrl, skb);
repr_priv->qos_table.netdev_port_id = netdev_port_id;
fl_priv->qos_rate_limiters++;
if (fl_priv->qos_rate_limiters == 1)
schedule_delayed_work(&fl_priv->qos_stats_work,
NFP_FL_QOS_UPDATE);
return 0;
}
static int
nfp_flower_spawn_phy_reprs(struct nfp_app *app, struct nfp_flower_priv *priv)
{
struct nfp_eth_table *eth_tbl = app->pf->eth_tbl;
atomic_t *replies = &priv->reify_replies;
struct nfp_flower_repr_priv *repr_priv;
struct nfp_repr *nfp_repr;
struct sk_buff *ctrl_skb;
struct nfp_reprs *reprs;
int err, reify_cnt;
unsigned int i;
ctrl_skb = nfp_flower_cmsg_mac_repr_start(app, eth_tbl->count);
if (!ctrl_skb)
return -ENOMEM;
reprs = nfp_reprs_alloc(eth_tbl->max_index + 1);
if (!reprs) {
err = -ENOMEM;
goto err_free_ctrl_skb;
}
for (i = 0; i < eth_tbl->count; i++) {
unsigned int phys_port = eth_tbl->ports[i].index;
struct net_device *repr;
struct nfp_port *port;
u32 cmsg_port_id;
repr = nfp_repr_alloc(app);
if (!repr) {
err = -ENOMEM;
goto err_reprs_clean;
}
repr_priv = kzalloc(sizeof(*repr_priv), GFP_KERNEL);
if (!repr_priv) {
err = -ENOMEM;
goto err_reprs_clean;
}
nfp_repr = netdev_priv(repr);
nfp_repr->app_priv = repr_priv;
port = nfp_port_alloc(app, NFP_PORT_PHYS_PORT, repr);
if (IS_ERR(port)) {
err = PTR_ERR(port);
nfp_repr_free(repr);
goto err_reprs_clean;
}
err = nfp_port_init_phy_port(app->pf, app, port, i);
if (err) {
nfp_port_free(port);
nfp_repr_free(repr);
goto err_reprs_clean;
}
SET_NETDEV_DEV(repr, &priv->nn->pdev->dev);
nfp_net_get_mac_addr(app->pf, repr, port);
cmsg_port_id = nfp_flower_cmsg_phys_port(phys_port);
err = nfp_repr_init(app, repr,
cmsg_port_id, port, priv->nn->dp.netdev);
if (err) {
nfp_port_free(port);
nfp_repr_free(repr);
goto err_reprs_clean;
}
nfp_flower_cmsg_mac_repr_add(ctrl_skb, i,
eth_tbl->ports[i].nbi,
eth_tbl->ports[i].base,
phys_port);
RCU_INIT_POINTER(reprs->reprs[phys_port], repr);
nfp_info(app->cpp, "Phys Port %d Representor(%s) created\n",
phys_port, repr->name);
}
nfp_app_reprs_set(app, NFP_REPR_TYPE_PHYS_PORT, reprs);
/* The REIFY/MAC_REPR control messages should be sent after the MAC
* representors are registered using nfp_app_reprs_set(). This is
* because the firmware may respond with control messages for the
* MAC representors, f.e. to provide the driver with information
* about their state, and without registration the driver will drop
* any such messages.
*/
atomic_set(replies, 0);
reify_cnt = nfp_flower_reprs_reify(app, NFP_REPR_TYPE_PHYS_PORT, true);
if (reify_cnt < 0) {
err = reify_cnt;
nfp_warn(app->cpp, "Failed to notify firmware about repr creation\n");
goto err_reprs_remove;
}
err = nfp_flower_wait_repr_reify(app, replies, reify_cnt);
if (err)
goto err_reprs_remove;
nfp_ctrl_tx(app->ctrl, ctrl_skb);
return 0;
err_reprs_remove:
reprs = nfp_app_reprs_set(app, NFP_REPR_TYPE_PHYS_PORT, NULL);
err_reprs_clean:
nfp_reprs_clean_and_free(app, reprs);
err_free_ctrl_skb:
kfree_skb(ctrl_skb);
return err;
}
