2 * Copyright (C) 2017 Netronome Systems, Inc.
4 * This software is dual licensed under the GNU General License Version 2,
5 * June 1991 as shown in the file COPYING in the top-level directory of this
6 * source tree or the BSD 2-Clause License provided below. You have the
7 * option to license this software under the complete terms of either license.
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11 * Redistribution and use in source and binary forms, with or
12 * without modification, are permitted provided that the following
15 * 1. Redistributions of source code must retain the above
16 * copyright notice, this list of conditions and the following
19 * 2. Redistributions in binary form must reproduce the above
20 * copyright notice, this list of conditions and the following
21 * disclaimer in the documentation and/or other materials
22 * provided with the distribution.
24 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
25 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
26 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
27 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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30 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
34 #include <linux/rtnetlink.h>
35 #include <net/devlink.h>
37 #include "nfpcore/nfp_nsp.h"
43 nfp_devlink_fill_eth_port(struct nfp_port *port,
44 struct nfp_eth_table_port *copy)
46 struct nfp_eth_table_port *eth_port;
48 eth_port = __nfp_port_get_eth_port(port);
52 memcpy(copy, eth_port, sizeof(*eth_port));
58 nfp_devlink_fill_eth_port_from_id(struct nfp_pf *pf, unsigned int port_index,
59 struct nfp_eth_table_port *copy)
61 struct nfp_port *port;
63 port = nfp_port_from_id(pf, NFP_PORT_PHYS_PORT, port_index);
65 return nfp_devlink_fill_eth_port(port, copy);
69 nfp_devlink_set_lanes(struct nfp_pf *pf, unsigned int idx, unsigned int lanes)
74 nsp = nfp_eth_config_start(pf->cpp, idx);
78 ret = __nfp_eth_set_split(nsp, lanes);
80 nfp_eth_config_cleanup_end(nsp);
84 ret = nfp_eth_config_commit_end(nsp);
87 if (ret) /* no change */
90 return nfp_net_refresh_port_table_sync(pf);
94 nfp_devlink_port_split(struct devlink *devlink, unsigned int port_index,
97 struct nfp_pf *pf = devlink_priv(devlink);
98 struct nfp_eth_table_port eth_port;
104 mutex_lock(&pf->lock);
107 ret = nfp_devlink_fill_eth_port_from_id(pf, port_index, ð_port);
112 if (eth_port.is_split || eth_port.port_lanes % count) {
117 ret = nfp_devlink_set_lanes(pf, eth_port.index,
118 eth_port.port_lanes / count);
120 mutex_unlock(&pf->lock);
126 nfp_devlink_port_unsplit(struct devlink *devlink, unsigned int port_index)
128 struct nfp_pf *pf = devlink_priv(devlink);
129 struct nfp_eth_table_port eth_port;
132 mutex_lock(&pf->lock);
135 ret = nfp_devlink_fill_eth_port_from_id(pf, port_index, ð_port);
140 if (!eth_port.is_split) {
145 ret = nfp_devlink_set_lanes(pf, eth_port.index, eth_port.port_lanes);
147 mutex_unlock(&pf->lock);
152 static int nfp_devlink_eswitch_mode_get(struct devlink *devlink, u16 *mode)
154 struct nfp_pf *pf = devlink_priv(devlink);
156 return nfp_app_eswitch_mode_get(pf->app, mode);
159 const struct devlink_ops nfp_devlink_ops = {
160 .port_split = nfp_devlink_port_split,
161 .port_unsplit = nfp_devlink_port_unsplit,
162 .eswitch_mode_get = nfp_devlink_eswitch_mode_get,
165 int nfp_devlink_port_register(struct nfp_app *app, struct nfp_port *port)
167 struct nfp_eth_table_port eth_port;
168 struct devlink *devlink;
172 ret = nfp_devlink_fill_eth_port(port, ð_port);
177 devlink_port_type_eth_set(&port->dl_port, port->netdev);
178 if (eth_port.is_split)
179 devlink_port_split_set(&port->dl_port, eth_port.label_port);
181 devlink = priv_to_devlink(app->pf);
183 return devlink_port_register(devlink, &port->dl_port, port->eth_id);
186 void nfp_devlink_port_unregister(struct nfp_port *port)
188 devlink_port_unregister(&port->dl_port);