mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-28 11:49:32 +00:00
![Pablo Cascón](/assets/img/avatar_default.png)
Add basic ndo_set/get_vf to support SR-IOV. VF to egress phy static mapping by now. Use vfcfg ABI version 2 to write the info to the FW and collect the return value from the mailbox. Signed-off-by: Pablo Cascón <pablo.cascon@netronome.com> Signed-off-by: Jimmy Kizito <jimmy.kizito@netronome.com> Signed-off-by: Rami Tomer <rami.tomer@netronome.com> Signed-off-by: Simon Horman <simon.horman@netronome.com> Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
243 lines
7 KiB
C
243 lines
7 KiB
C
/*
|
|
* Copyright (C) 2017 Netronome Systems, Inc.
|
|
*
|
|
* This software is dual licensed under the GNU General License Version 2,
|
|
* June 1991 as shown in the file COPYING in the top-level directory of this
|
|
* source tree or the BSD 2-Clause License provided below. You have the
|
|
* option to license this software under the complete terms of either license.
|
|
*
|
|
* The BSD 2-Clause License:
|
|
*
|
|
* Redistribution and use in source and binary forms, with or
|
|
* without modification, are permitted provided that the following
|
|
* conditions are met:
|
|
*
|
|
* 1. Redistributions of source code must retain the above
|
|
* copyright notice, this list of conditions and the following
|
|
* disclaimer.
|
|
*
|
|
* 2. Redistributions in binary form must reproduce the above
|
|
* copyright notice, this list of conditions and the following
|
|
* disclaimer in the documentation and/or other materials
|
|
* provided with the distribution.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
|
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
|
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
|
|
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
|
|
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
|
|
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
|
|
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
|
|
* SOFTWARE.
|
|
*/
|
|
|
|
#include <linux/bitfield.h>
|
|
#include <linux/errno.h>
|
|
#include <linux/etherdevice.h>
|
|
#include <linux/if_link.h>
|
|
#include <linux/if_ether.h>
|
|
|
|
#include "nfpcore/nfp_cpp.h"
|
|
#include "nfp_app.h"
|
|
#include "nfp_main.h"
|
|
#include "nfp_net_ctrl.h"
|
|
#include "nfp_net.h"
|
|
#include "nfp_net_sriov.h"
|
|
|
|
static int
|
|
nfp_net_sriov_check(struct nfp_app *app, int vf, u16 cap, const char *msg)
|
|
{
|
|
u16 cap_vf;
|
|
|
|
if (!app || !app->pf->vfcfg_tbl2)
|
|
return -EOPNOTSUPP;
|
|
|
|
cap_vf = readw(app->pf->vfcfg_tbl2 + NFP_NET_VF_CFG_MB_CAP);
|
|
if ((cap_vf & cap) != cap) {
|
|
nfp_warn(app->pf->cpp, "ndo_set_vf_%s not supported\n", msg);
|
|
return -EOPNOTSUPP;
|
|
}
|
|
|
|
if (vf < 0 || vf >= app->pf->num_vfs) {
|
|
nfp_warn(app->pf->cpp, "invalid VF id %d\n", vf);
|
|
return -EINVAL;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
nfp_net_sriov_update(struct nfp_app *app, int vf, u16 update, const char *msg)
|
|
{
|
|
struct nfp_net *nn;
|
|
int ret;
|
|
|
|
/* Write update info to mailbox in VF config symbol */
|
|
writeb(vf, app->pf->vfcfg_tbl2 + NFP_NET_VF_CFG_MB_VF_NUM);
|
|
writew(update, app->pf->vfcfg_tbl2 + NFP_NET_VF_CFG_MB_UPD);
|
|
|
|
nn = list_first_entry(&app->pf->vnics, struct nfp_net, vnic_list);
|
|
/* Signal VF reconfiguration */
|
|
ret = nfp_net_reconfig(nn, NFP_NET_CFG_UPDATE_VF);
|
|
if (ret)
|
|
return ret;
|
|
|
|
ret = readw(app->pf->vfcfg_tbl2 + NFP_NET_VF_CFG_MB_RET);
|
|
if (ret)
|
|
nfp_warn(app->pf->cpp,
|
|
"FW refused VF %s update with errno: %d\n", msg, ret);
|
|
return -ret;
|
|
}
|
|
|
|
int nfp_app_set_vf_mac(struct net_device *netdev, int vf, u8 *mac)
|
|
{
|
|
struct nfp_app *app = nfp_app_from_netdev(netdev);
|
|
unsigned int vf_offset;
|
|
int err;
|
|
|
|
err = nfp_net_sriov_check(app, vf, NFP_NET_VF_CFG_MB_CAP_MAC, "mac");
|
|
if (err)
|
|
return err;
|
|
|
|
if (is_multicast_ether_addr(mac)) {
|
|
nfp_warn(app->pf->cpp,
|
|
"invalid Ethernet address %pM for VF id %d\n",
|
|
mac, vf);
|
|
return -EINVAL;
|
|
}
|
|
|
|
/* Write MAC to VF entry in VF config symbol */
|
|
vf_offset = NFP_NET_VF_CFG_MB_SZ + vf * NFP_NET_VF_CFG_SZ;
|
|
writel(get_unaligned_be32(mac), app->pf->vfcfg_tbl2 + vf_offset);
|
|
writew(get_unaligned_be16(mac + 4),
|
|
app->pf->vfcfg_tbl2 + vf_offset + NFP_NET_VF_CFG_MAC_LO);
|
|
|
|
return nfp_net_sriov_update(app, vf, NFP_NET_VF_CFG_MB_UPD_MAC, "MAC");
|
|
}
|
|
|
|
int nfp_app_set_vf_vlan(struct net_device *netdev, int vf, u16 vlan, u8 qos,
|
|
__be16 vlan_proto)
|
|
{
|
|
struct nfp_app *app = nfp_app_from_netdev(netdev);
|
|
unsigned int vf_offset;
|
|
u16 vlan_tci;
|
|
int err;
|
|
|
|
err = nfp_net_sriov_check(app, vf, NFP_NET_VF_CFG_MB_CAP_VLAN, "vlan");
|
|
if (err)
|
|
return err;
|
|
|
|
if (vlan_proto != htons(ETH_P_8021Q))
|
|
return -EOPNOTSUPP;
|
|
|
|
if (vlan > 4095 || qos > 7) {
|
|
nfp_warn(app->pf->cpp,
|
|
"invalid vlan id or qos for VF id %d\n", vf);
|
|
return -EINVAL;
|
|
}
|
|
|
|
/* Write VLAN tag to VF entry in VF config symbol */
|
|
vlan_tci = FIELD_PREP(NFP_NET_VF_CFG_VLAN_VID, vlan) |
|
|
FIELD_PREP(NFP_NET_VF_CFG_VLAN_QOS, qos);
|
|
vf_offset = NFP_NET_VF_CFG_MB_SZ + vf * NFP_NET_VF_CFG_SZ;
|
|
writew(vlan_tci, app->pf->vfcfg_tbl2 + vf_offset + NFP_NET_VF_CFG_VLAN);
|
|
|
|
return nfp_net_sriov_update(app, vf, NFP_NET_VF_CFG_MB_UPD_VLAN,
|
|
"vlan");
|
|
}
|
|
|
|
int nfp_app_set_vf_spoofchk(struct net_device *netdev, int vf, bool enable)
|
|
{
|
|
struct nfp_app *app = nfp_app_from_netdev(netdev);
|
|
unsigned int vf_offset;
|
|
u8 vf_ctrl;
|
|
int err;
|
|
|
|
err = nfp_net_sriov_check(app, vf, NFP_NET_VF_CFG_MB_CAP_SPOOF,
|
|
"spoofchk");
|
|
if (err)
|
|
return err;
|
|
|
|
/* Write spoof check control bit to VF entry in VF config symbol */
|
|
vf_offset = NFP_NET_VF_CFG_MB_SZ + vf * NFP_NET_VF_CFG_SZ +
|
|
NFP_NET_VF_CFG_CTRL;
|
|
vf_ctrl = readb(app->pf->vfcfg_tbl2 + vf_offset);
|
|
vf_ctrl &= ~NFP_NET_VF_CFG_CTRL_SPOOF;
|
|
vf_ctrl |= FIELD_PREP(NFP_NET_VF_CFG_CTRL_SPOOF, enable);
|
|
writeb(vf_ctrl, app->pf->vfcfg_tbl2 + vf_offset);
|
|
|
|
return nfp_net_sriov_update(app, vf, NFP_NET_VF_CFG_MB_UPD_SPOOF,
|
|
"spoofchk");
|
|
}
|
|
|
|
int nfp_app_set_vf_link_state(struct net_device *netdev, int vf,
|
|
int link_state)
|
|
{
|
|
struct nfp_app *app = nfp_app_from_netdev(netdev);
|
|
unsigned int vf_offset;
|
|
u8 vf_ctrl;
|
|
int err;
|
|
|
|
err = nfp_net_sriov_check(app, vf, NFP_NET_VF_CFG_MB_CAP_LINK_STATE,
|
|
"link_state");
|
|
if (err)
|
|
return err;
|
|
|
|
switch (link_state) {
|
|
case IFLA_VF_LINK_STATE_AUTO:
|
|
case IFLA_VF_LINK_STATE_ENABLE:
|
|
case IFLA_VF_LINK_STATE_DISABLE:
|
|
break;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
|
|
/* Write link state to VF entry in VF config symbol */
|
|
vf_offset = NFP_NET_VF_CFG_MB_SZ + vf * NFP_NET_VF_CFG_SZ +
|
|
NFP_NET_VF_CFG_CTRL;
|
|
vf_ctrl = readb(app->pf->vfcfg_tbl2 + vf_offset);
|
|
vf_ctrl &= ~NFP_NET_VF_CFG_CTRL_LINK_STATE;
|
|
vf_ctrl |= FIELD_PREP(NFP_NET_VF_CFG_CTRL_LINK_STATE, link_state);
|
|
writeb(vf_ctrl, app->pf->vfcfg_tbl2 + vf_offset);
|
|
|
|
return nfp_net_sriov_update(app, vf, NFP_NET_VF_CFG_MB_UPD_LINK_STATE,
|
|
"link state");
|
|
}
|
|
|
|
int nfp_app_get_vf_config(struct net_device *netdev, int vf,
|
|
struct ifla_vf_info *ivi)
|
|
{
|
|
struct nfp_app *app = nfp_app_from_netdev(netdev);
|
|
unsigned int vf_offset;
|
|
u16 vlan_tci;
|
|
u32 mac_hi;
|
|
u16 mac_lo;
|
|
u8 flags;
|
|
int err;
|
|
|
|
err = nfp_net_sriov_check(app, vf, 0, "");
|
|
if (err)
|
|
return err;
|
|
|
|
vf_offset = NFP_NET_VF_CFG_MB_SZ + vf * NFP_NET_VF_CFG_SZ;
|
|
|
|
mac_hi = readl(app->pf->vfcfg_tbl2 + vf_offset);
|
|
mac_lo = readw(app->pf->vfcfg_tbl2 + vf_offset + NFP_NET_VF_CFG_MAC_LO);
|
|
|
|
flags = readb(app->pf->vfcfg_tbl2 + vf_offset + NFP_NET_VF_CFG_CTRL);
|
|
vlan_tci = readw(app->pf->vfcfg_tbl2 + vf_offset + NFP_NET_VF_CFG_VLAN);
|
|
|
|
memset(ivi, 0, sizeof(*ivi));
|
|
ivi->vf = vf;
|
|
|
|
put_unaligned_be32(mac_hi, &ivi->mac[0]);
|
|
put_unaligned_be16(mac_lo, &ivi->mac[4]);
|
|
|
|
ivi->vlan = FIELD_GET(NFP_NET_VF_CFG_VLAN_VID, vlan_tci);
|
|
ivi->qos = FIELD_GET(NFP_NET_VF_CFG_VLAN_QOS, vlan_tci);
|
|
|
|
ivi->spoofchk = FIELD_GET(NFP_NET_VF_CFG_CTRL_SPOOF, flags);
|
|
ivi->linkstate = FIELD_GET(NFP_NET_VF_CFG_CTRL_LINK_STATE, flags);
|
|
|
|
return 0;
|
|
}
|