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 err = nfp_net_sriov_update(app, vf, NFP_NET_VF_CFG_MB_UPD_MAC, "MAC");
117 nfp_info(app->pf->cpp,
118 "MAC %pM set on VF %d, reload the VF driver to make this change effective.\n",
124 int nfp_app_set_vf_vlan(struct net_device *netdev, int vf, u16 vlan, u8 qos,
127 struct nfp_app *app = nfp_app_from_netdev(netdev);
128 unsigned int vf_offset;
132 err = nfp_net_sriov_check(app, vf, NFP_NET_VF_CFG_MB_CAP_VLAN, "vlan");
136 if (vlan_proto != htons(ETH_P_8021Q))
139 if (vlan > 4095 || qos > 7) {
140 nfp_warn(app->pf->cpp,
141 "invalid vlan id or qos for VF id %d\n", vf);
145 /* Write VLAN tag to VF entry in VF config symbol */
146 vlan_tci = FIELD_PREP(NFP_NET_VF_CFG_VLAN_VID, vlan) |
147 FIELD_PREP(NFP_NET_VF_CFG_VLAN_QOS, qos);
148 vf_offset = NFP_NET_VF_CFG_MB_SZ + vf * NFP_NET_VF_CFG_SZ;
149 writew(vlan_tci, app->pf->vfcfg_tbl2 + vf_offset + NFP_NET_VF_CFG_VLAN);
151 return nfp_net_sriov_update(app, vf, NFP_NET_VF_CFG_MB_UPD_VLAN,
155 int nfp_app_set_vf_spoofchk(struct net_device *netdev, int vf, bool enable)
157 struct nfp_app *app = nfp_app_from_netdev(netdev);
158 unsigned int vf_offset;
162 err = nfp_net_sriov_check(app, vf, NFP_NET_VF_CFG_MB_CAP_SPOOF,
167 /* Write spoof check control bit to VF entry in VF config symbol */
168 vf_offset = NFP_NET_VF_CFG_MB_SZ + vf * NFP_NET_VF_CFG_SZ +
170 vf_ctrl = readb(app->pf->vfcfg_tbl2 + vf_offset);
171 vf_ctrl &= ~NFP_NET_VF_CFG_CTRL_SPOOF;
172 vf_ctrl |= FIELD_PREP(NFP_NET_VF_CFG_CTRL_SPOOF, enable);
173 writeb(vf_ctrl, app->pf->vfcfg_tbl2 + vf_offset);
175 return nfp_net_sriov_update(app, vf, NFP_NET_VF_CFG_MB_UPD_SPOOF,
179 int nfp_app_set_vf_link_state(struct net_device *netdev, int vf,
182 struct nfp_app *app = nfp_app_from_netdev(netdev);
183 unsigned int vf_offset;
187 err = nfp_net_sriov_check(app, vf, NFP_NET_VF_CFG_MB_CAP_LINK_STATE,
192 switch (link_state) {
193 case IFLA_VF_LINK_STATE_AUTO:
194 case IFLA_VF_LINK_STATE_ENABLE:
195 case IFLA_VF_LINK_STATE_DISABLE:
201 /* Write link state to VF entry in VF config symbol */
202 vf_offset = NFP_NET_VF_CFG_MB_SZ + vf * NFP_NET_VF_CFG_SZ +
204 vf_ctrl = readb(app->pf->vfcfg_tbl2 + vf_offset);
205 vf_ctrl &= ~NFP_NET_VF_CFG_CTRL_LINK_STATE;
206 vf_ctrl |= FIELD_PREP(NFP_NET_VF_CFG_CTRL_LINK_STATE, link_state);
207 writeb(vf_ctrl, app->pf->vfcfg_tbl2 + vf_offset);
209 return nfp_net_sriov_update(app, vf, NFP_NET_VF_CFG_MB_UPD_LINK_STATE,
213 int nfp_app_get_vf_config(struct net_device *netdev, int vf,
214 struct ifla_vf_info *ivi)
216 struct nfp_app *app = nfp_app_from_netdev(netdev);
217 unsigned int vf_offset;
224 err = nfp_net_sriov_check(app, vf, 0, "");
228 vf_offset = NFP_NET_VF_CFG_MB_SZ + vf * NFP_NET_VF_CFG_SZ;
230 mac_hi = readl(app->pf->vfcfg_tbl2 + vf_offset);
231 mac_lo = readw(app->pf->vfcfg_tbl2 + vf_offset + NFP_NET_VF_CFG_MAC_LO);
233 flags = readb(app->pf->vfcfg_tbl2 + vf_offset + NFP_NET_VF_CFG_CTRL);
234 vlan_tci = readw(app->pf->vfcfg_tbl2 + vf_offset + NFP_NET_VF_CFG_VLAN);
236 memset(ivi, 0, sizeof(*ivi));
239 put_unaligned_be32(mac_hi, &ivi->mac[0]);
240 put_unaligned_be16(mac_lo, &ivi->mac[4]);
242 ivi->vlan = FIELD_GET(NFP_NET_VF_CFG_VLAN_VID, vlan_tci);
243 ivi->qos = FIELD_GET(NFP_NET_VF_CFG_VLAN_QOS, vlan_tci);
245 ivi->spoofchk = FIELD_GET(NFP_NET_VF_CFG_CTRL_SPOOF, flags);
246 ivi->linkstate = FIELD_GET(NFP_NET_VF_CFG_CTRL_LINK_STATE, flags);