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.
9 * The BSD 2-Clause License:
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
28 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
29 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
30 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
34 #include <linux/bitfield.h>
35 #include <linux/errno.h>
36 #include <linux/etherdevice.h>
37 #include <linux/if_link.h>
38 #include <linux/if_ether.h>
40 #include "nfpcore/nfp_cpp.h"
43 #include "nfp_net_ctrl.h"
45 #include "nfp_net_sriov.h"
48 nfp_net_sriov_check(struct nfp_app *app, int vf, u16 cap, const char *msg)
52 if (!app || !app->pf->vfcfg_tbl2)
55 cap_vf = readw(app->pf->vfcfg_tbl2 + NFP_NET_VF_CFG_MB_CAP);
56 if ((cap_vf & cap) != cap) {
57 nfp_warn(app->pf->cpp, "ndo_set_vf_%s not supported\n", msg);
61 if (vf < 0 || vf >= app->pf->num_vfs) {
62 nfp_warn(app->pf->cpp, "invalid VF id %d\n", vf);
70 nfp_net_sriov_update(struct nfp_app *app, int vf, u16 update, const char *msg)
75 /* Write update info to mailbox in VF config symbol */
76 writeb(vf, app->pf->vfcfg_tbl2 + NFP_NET_VF_CFG_MB_VF_NUM);
77 writew(update, app->pf->vfcfg_tbl2 + NFP_NET_VF_CFG_MB_UPD);
79 nn = list_first_entry(&app->pf->vnics, struct nfp_net, vnic_list);
80 /* Signal VF reconfiguration */
81 ret = nfp_net_reconfig(nn, NFP_NET_CFG_UPDATE_VF);
85 ret = readw(app->pf->vfcfg_tbl2 + NFP_NET_VF_CFG_MB_RET);
87 nfp_warn(app->pf->cpp,
88 "FW refused VF %s update with errno: %d\n", msg, ret);
92 int nfp_app_set_vf_mac(struct net_device *netdev, int vf, u8 *mac)
94 struct nfp_app *app = nfp_app_from_netdev(netdev);
95 unsigned int vf_offset;
98 err = nfp_net_sriov_check(app, vf, NFP_NET_VF_CFG_MB_CAP_MAC, "mac");
102 if (is_multicast_ether_addr(mac)) {
103 nfp_warn(app->pf->cpp,
104 "invalid Ethernet address %pM for VF id %d\n",
109 /* Write MAC to VF entry in VF config symbol */
110 vf_offset = NFP_NET_VF_CFG_MB_SZ + vf * NFP_NET_VF_CFG_SZ;
111 writel(get_unaligned_be32(mac), app->pf->vfcfg_tbl2 + vf_offset);
112 writew(get_unaligned_be16(mac + 4),
113 app->pf->vfcfg_tbl2 + vf_offset + NFP_NET_VF_CFG_MAC_LO);
115 return nfp_net_sriov_update(app, vf, NFP_NET_VF_CFG_MB_UPD_MAC, "MAC");
118 int nfp_app_set_vf_vlan(struct net_device *netdev, int vf, u16 vlan, u8 qos,
121 struct nfp_app *app = nfp_app_from_netdev(netdev);
122 unsigned int vf_offset;
126 err = nfp_net_sriov_check(app, vf, NFP_NET_VF_CFG_MB_CAP_VLAN, "vlan");
130 if (vlan_proto != htons(ETH_P_8021Q))
133 if (vlan > 4095 || qos > 7) {
134 nfp_warn(app->pf->cpp,
135 "invalid vlan id or qos for VF id %d\n", vf);
139 /* Write VLAN tag to VF entry in VF config symbol */
140 vlan_tci = FIELD_PREP(NFP_NET_VF_CFG_VLAN_VID, vlan) |
141 FIELD_PREP(NFP_NET_VF_CFG_VLAN_QOS, qos);
142 vf_offset = NFP_NET_VF_CFG_MB_SZ + vf * NFP_NET_VF_CFG_SZ;
143 writew(vlan_tci, app->pf->vfcfg_tbl2 + vf_offset + NFP_NET_VF_CFG_VLAN);
145 return nfp_net_sriov_update(app, vf, NFP_NET_VF_CFG_MB_UPD_VLAN,
149 int nfp_app_set_vf_spoofchk(struct net_device *netdev, int vf, bool enable)
151 struct nfp_app *app = nfp_app_from_netdev(netdev);
152 unsigned int vf_offset;
156 err = nfp_net_sriov_check(app, vf, NFP_NET_VF_CFG_MB_CAP_SPOOF,
161 /* Write spoof check control bit to VF entry in VF config symbol */
162 vf_offset = NFP_NET_VF_CFG_MB_SZ + vf * NFP_NET_VF_CFG_SZ +
164 vf_ctrl = readb(app->pf->vfcfg_tbl2 + vf_offset);
165 vf_ctrl &= ~NFP_NET_VF_CFG_CTRL_SPOOF;
166 vf_ctrl |= FIELD_PREP(NFP_NET_VF_CFG_CTRL_SPOOF, enable);
167 writeb(vf_ctrl, app->pf->vfcfg_tbl2 + vf_offset);
169 return nfp_net_sriov_update(app, vf, NFP_NET_VF_CFG_MB_UPD_SPOOF,
173 int nfp_app_set_vf_link_state(struct net_device *netdev, int vf,
176 struct nfp_app *app = nfp_app_from_netdev(netdev);
177 unsigned int vf_offset;
181 err = nfp_net_sriov_check(app, vf, NFP_NET_VF_CFG_MB_CAP_LINK_STATE,
186 switch (link_state) {
187 case IFLA_VF_LINK_STATE_AUTO:
188 case IFLA_VF_LINK_STATE_ENABLE:
189 case IFLA_VF_LINK_STATE_DISABLE:
195 /* Write link state to VF entry in VF config symbol */
196 vf_offset = NFP_NET_VF_CFG_MB_SZ + vf * NFP_NET_VF_CFG_SZ +
198 vf_ctrl = readb(app->pf->vfcfg_tbl2 + vf_offset);
199 vf_ctrl &= ~NFP_NET_VF_CFG_CTRL_LINK_STATE;
200 vf_ctrl |= FIELD_PREP(NFP_NET_VF_CFG_CTRL_LINK_STATE, link_state);
201 writeb(vf_ctrl, app->pf->vfcfg_tbl2 + vf_offset);
203 return nfp_net_sriov_update(app, vf, NFP_NET_VF_CFG_MB_UPD_LINK_STATE,
207 int nfp_app_get_vf_config(struct net_device *netdev, int vf,
208 struct ifla_vf_info *ivi)
210 struct nfp_app *app = nfp_app_from_netdev(netdev);
211 unsigned int vf_offset;
218 err = nfp_net_sriov_check(app, vf, 0, "");
222 vf_offset = NFP_NET_VF_CFG_MB_SZ + vf * NFP_NET_VF_CFG_SZ;
224 mac_hi = readl(app->pf->vfcfg_tbl2 + vf_offset);
225 mac_lo = readw(app->pf->vfcfg_tbl2 + vf_offset + NFP_NET_VF_CFG_MAC_LO);
227 flags = readb(app->pf->vfcfg_tbl2 + vf_offset + NFP_NET_VF_CFG_CTRL);
228 vlan_tci = readw(app->pf->vfcfg_tbl2 + vf_offset + NFP_NET_VF_CFG_VLAN);
230 memset(ivi, 0, sizeof(*ivi));
233 put_unaligned_be32(mac_hi, &ivi->mac[0]);
234 put_unaligned_be16(mac_lo, &ivi->mac[4]);
236 ivi->vlan = FIELD_GET(NFP_NET_VF_CFG_VLAN_VID, vlan_tci);
237 ivi->qos = FIELD_GET(NFP_NET_VF_CFG_VLAN_QOS, vlan_tci);
239 ivi->spoofchk = FIELD_GET(NFP_NET_VF_CFG_CTRL_SPOOF, flags);
240 ivi->linkstate = FIELD_GET(NFP_NET_VF_CFG_CTRL_LINK_STATE, flags);