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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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nfp: add basic SR-IOV ndo functions
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>
This commit is contained in:
Pablo Cascón
David S. Miller
parent
bd9dfc54e3
commit
25528d90f5
@ -23,6 +23,7 @@ nfp-objs := \
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nfp_net_ethtool.o \
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nfp_net_main.o \
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nfp_net_repr.o \
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nfp_net_sriov.o \
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nfp_netvf_main.o \
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nfp_port.o \
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bpf/main.o \
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@ -73,6 +73,8 @@ struct nfp_rtsym_table;
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* @mac_stats_mem: Pointer to mapped MAC stats area
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* @vf_cfg_bar: Pointer to the CPP area for the VF configuration BAR
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* @vf_cfg_mem: Pointer to mapped VF configuration area
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* @vfcfg_tbl2_area: Pointer to the CPP area for the VF config table
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* @vfcfg_tbl2: Pointer to mapped VF config table
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* @irq_entries: Array of MSI-X entries for all vNICs
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* @limit_vfs: Number of VFs supported by firmware (~0 for PCI limit)
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* @num_vfs: Number of SR-IOV VFs enabled
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@ -107,6 +109,8 @@ struct nfp_pf {
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u8 __iomem *mac_stats_mem;
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struct nfp_cpp_area *vf_cfg_bar;
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u8 __iomem *vf_cfg_mem;
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struct nfp_cpp_area *vfcfg_tbl2_area;
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u8 __iomem *vfcfg_tbl2;
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struct msix_entry *irq_entries;
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@ -71,6 +71,7 @@
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#include "nfp_app.h"
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#include "nfp_net_ctrl.h"
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#include "nfp_net.h"
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#include "nfp_net_sriov.h"
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#include "nfp_port.h"
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/**
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@ -3421,6 +3422,11 @@ const struct net_device_ops nfp_net_netdev_ops = {
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.ndo_get_stats64 = nfp_net_stat64,
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.ndo_vlan_rx_add_vid = nfp_net_vlan_rx_add_vid,
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.ndo_vlan_rx_kill_vid = nfp_net_vlan_rx_kill_vid,
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.ndo_set_vf_mac = nfp_app_set_vf_mac,
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.ndo_set_vf_vlan = nfp_app_set_vf_vlan,
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.ndo_set_vf_spoofchk = nfp_app_set_vf_spoofchk,
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.ndo_get_vf_config = nfp_app_get_vf_config,
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.ndo_set_vf_link_state = nfp_app_set_vf_link_state,
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.ndo_setup_tc = nfp_port_setup_tc,
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.ndo_tx_timeout = nfp_net_tx_timeout,
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.ndo_set_rx_mode = nfp_net_set_rx_mode,
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@ -164,6 +164,7 @@
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#define NFP_NET_CFG_UPDATE_BPF (0x1 << 10) /* BPF program load */
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#define NFP_NET_CFG_UPDATE_MACADDR (0x1 << 11) /* MAC address change */
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#define NFP_NET_CFG_UPDATE_MBOX (0x1 << 12) /* Mailbox update */
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#define NFP_NET_CFG_UPDATE_VF (0x1 << 13) /* VF settings change */
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#define NFP_NET_CFG_UPDATE_ERR (0x1 << 31) /* A error occurred */
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#define NFP_NET_CFG_TXRS_ENABLE 0x0008
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#define NFP_NET_CFG_RXRS_ENABLE 0x0010
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@ -57,6 +57,7 @@
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#include "nfpcore/nfp6000_pcie.h"
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#include "nfp_app.h"
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#include "nfp_net_ctrl.h"
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#include "nfp_net_sriov.h"
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#include "nfp_net.h"
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#include "nfp_main.h"
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#include "nfp_port.h"
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@ -489,6 +490,8 @@ static void nfp_net_pf_app_stop(struct nfp_pf *pf)
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static void nfp_net_pci_unmap_mem(struct nfp_pf *pf)
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{
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if (pf->vfcfg_tbl2_area)
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nfp_cpp_area_release_free(pf->vfcfg_tbl2_area);
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if (pf->vf_cfg_bar)
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nfp_cpp_area_release_free(pf->vf_cfg_bar);
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if (pf->mac_stats_bar)
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@ -535,17 +538,32 @@ static int nfp_net_pci_map_mem(struct nfp_pf *pf)
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pf->vf_cfg_mem = NULL;
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}
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min_size = NFP_NET_VF_CFG_SZ * pf->limit_vfs + NFP_NET_VF_CFG_MB_SZ;
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pf->vfcfg_tbl2 = nfp_net_pf_map_rtsym(pf, "net.vfcfg_tbl2",
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"_pf%d_net_vf_cfg2",
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min_size, &pf->vfcfg_tbl2_area);
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if (IS_ERR(pf->vfcfg_tbl2)) {
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if (PTR_ERR(pf->vfcfg_tbl2) != -ENOENT) {
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err = PTR_ERR(pf->vfcfg_tbl2);
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goto err_unmap_vf_cfg;
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}
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pf->vfcfg_tbl2 = NULL;
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}
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mem = nfp_cpp_map_area(pf->cpp, "net.qc", 0, 0,
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NFP_PCIE_QUEUE(0), NFP_QCP_QUEUE_AREA_SZ,
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&pf->qc_area);
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if (IS_ERR(mem)) {
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nfp_err(pf->cpp, "Failed to map Queue Controller area.\n");
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err = PTR_ERR(mem);
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goto err_unmap_vf_cfg;
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goto err_unmap_vfcfg_tbl2;
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}
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return 0;
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err_unmap_vfcfg_tbl2:
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if (pf->vfcfg_tbl2_area)
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nfp_cpp_area_release_free(pf->vfcfg_tbl2_area);
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err_unmap_vf_cfg:
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if (pf->vf_cfg_bar)
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nfp_cpp_area_release_free(pf->vf_cfg_bar);
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243
drivers/net/ethernet/netronome/nfp/nfp_net_sriov.c
Normal file
243
drivers/net/ethernet/netronome/nfp/nfp_net_sriov.c
Normal file
@ -0,0 +1,243 @@
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/*
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* Copyright (C) 2017 Netronome Systems, Inc.
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*
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* This software is dual licensed under the GNU General License Version 2,
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* June 1991 as shown in the file COPYING in the top-level directory of this
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* source tree or the BSD 2-Clause License provided below. You have the
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* option to license this software under the complete terms of either license.
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*
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* The BSD 2-Clause License:
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*
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* Redistribution and use in source and binary forms, with or
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* without modification, are permitted provided that the following
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* conditions are met:
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*
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* 1. Redistributions of source code must retain the above
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* copyright notice, this list of conditions and the following
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* disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials
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* provided with the distribution.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#include <linux/bitfield.h>
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#include <linux/errno.h>
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#include <linux/etherdevice.h>
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#include <linux/if_link.h>
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#include <linux/if_ether.h>
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#include "nfpcore/nfp_cpp.h"
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#include "nfp_app.h"
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#include "nfp_main.h"
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#include "nfp_net_ctrl.h"
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#include "nfp_net.h"
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#include "nfp_net_sriov.h"
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static int
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nfp_net_sriov_check(struct nfp_app *app, int vf, u16 cap, const char *msg)
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{
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u16 cap_vf;
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if (!app || !app->pf->vfcfg_tbl2)
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return -EOPNOTSUPP;
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cap_vf = readw(app->pf->vfcfg_tbl2 + NFP_NET_VF_CFG_MB_CAP);
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if ((cap_vf & cap) != cap) {
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nfp_warn(app->pf->cpp, "ndo_set_vf_%s not supported\n", msg);
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return -EOPNOTSUPP;
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}
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if (vf < 0 || vf >= app->pf->num_vfs) {
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nfp_warn(app->pf->cpp, "invalid VF id %d\n", vf);
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return -EINVAL;
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}
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return 0;
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}
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static int
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nfp_net_sriov_update(struct nfp_app *app, int vf, u16 update, const char *msg)
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{
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struct nfp_net *nn;
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int ret;
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/* Write update info to mailbox in VF config symbol */
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writeb(vf, app->pf->vfcfg_tbl2 + NFP_NET_VF_CFG_MB_VF_NUM);
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writew(update, app->pf->vfcfg_tbl2 + NFP_NET_VF_CFG_MB_UPD);
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nn = list_first_entry(&app->pf->vnics, struct nfp_net, vnic_list);
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/* Signal VF reconfiguration */
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ret = nfp_net_reconfig(nn, NFP_NET_CFG_UPDATE_VF);
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if (ret)
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return ret;
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ret = readw(app->pf->vfcfg_tbl2 + NFP_NET_VF_CFG_MB_RET);
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if (ret)
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nfp_warn(app->pf->cpp,
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"FW refused VF %s update with errno: %d\n", msg, ret);
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return -ret;
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}
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int nfp_app_set_vf_mac(struct net_device *netdev, int vf, u8 *mac)
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{
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struct nfp_app *app = nfp_app_from_netdev(netdev);
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unsigned int vf_offset;
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int err;
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err = nfp_net_sriov_check(app, vf, NFP_NET_VF_CFG_MB_CAP_MAC, "mac");
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if (err)
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return err;
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if (is_multicast_ether_addr(mac)) {
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nfp_warn(app->pf->cpp,
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"invalid Ethernet address %pM for VF id %d\n",
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mac, vf);
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return -EINVAL;
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}
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/* Write MAC to VF entry in VF config symbol */
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vf_offset = NFP_NET_VF_CFG_MB_SZ + vf * NFP_NET_VF_CFG_SZ;
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writel(get_unaligned_be32(mac), app->pf->vfcfg_tbl2 + vf_offset);
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writew(get_unaligned_be16(mac + 4),
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app->pf->vfcfg_tbl2 + vf_offset + NFP_NET_VF_CFG_MAC_LO);
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return nfp_net_sriov_update(app, vf, NFP_NET_VF_CFG_MB_UPD_MAC, "MAC");
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}
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int nfp_app_set_vf_vlan(struct net_device *netdev, int vf, u16 vlan, u8 qos,
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__be16 vlan_proto)
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{
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struct nfp_app *app = nfp_app_from_netdev(netdev);
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unsigned int vf_offset;
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u16 vlan_tci;
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int err;
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err = nfp_net_sriov_check(app, vf, NFP_NET_VF_CFG_MB_CAP_VLAN, "vlan");
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if (err)
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return err;
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if (vlan_proto != htons(ETH_P_8021Q))
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return -EOPNOTSUPP;
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if (vlan > 4095 || qos > 7) {
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nfp_warn(app->pf->cpp,
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"invalid vlan id or qos for VF id %d\n", vf);
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return -EINVAL;
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}
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/* Write VLAN tag to VF entry in VF config symbol */
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vlan_tci = FIELD_PREP(NFP_NET_VF_CFG_VLAN_VID, vlan) |
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FIELD_PREP(NFP_NET_VF_CFG_VLAN_QOS, qos);
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vf_offset = NFP_NET_VF_CFG_MB_SZ + vf * NFP_NET_VF_CFG_SZ;
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writew(vlan_tci, app->pf->vfcfg_tbl2 + vf_offset + NFP_NET_VF_CFG_VLAN);
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return nfp_net_sriov_update(app, vf, NFP_NET_VF_CFG_MB_UPD_VLAN,
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"vlan");
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}
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int nfp_app_set_vf_spoofchk(struct net_device *netdev, int vf, bool enable)
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{
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struct nfp_app *app = nfp_app_from_netdev(netdev);
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unsigned int vf_offset;
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u8 vf_ctrl;
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int err;
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err = nfp_net_sriov_check(app, vf, NFP_NET_VF_CFG_MB_CAP_SPOOF,
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"spoofchk");
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if (err)
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return err;
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/* Write spoof check control bit to VF entry in VF config symbol */
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vf_offset = NFP_NET_VF_CFG_MB_SZ + vf * NFP_NET_VF_CFG_SZ +
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NFP_NET_VF_CFG_CTRL;
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vf_ctrl = readb(app->pf->vfcfg_tbl2 + vf_offset);
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vf_ctrl &= ~NFP_NET_VF_CFG_CTRL_SPOOF;
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vf_ctrl |= FIELD_PREP(NFP_NET_VF_CFG_CTRL_SPOOF, enable);
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writeb(vf_ctrl, app->pf->vfcfg_tbl2 + vf_offset);
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return nfp_net_sriov_update(app, vf, NFP_NET_VF_CFG_MB_UPD_SPOOF,
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"spoofchk");
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}
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int nfp_app_set_vf_link_state(struct net_device *netdev, int vf,
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int link_state)
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{
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struct nfp_app *app = nfp_app_from_netdev(netdev);
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unsigned int vf_offset;
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u8 vf_ctrl;
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int err;
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err = nfp_net_sriov_check(app, vf, NFP_NET_VF_CFG_MB_CAP_LINK_STATE,
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"link_state");
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if (err)
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return err;
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switch (link_state) {
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case IFLA_VF_LINK_STATE_AUTO:
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case IFLA_VF_LINK_STATE_ENABLE:
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case IFLA_VF_LINK_STATE_DISABLE:
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break;
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default:
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return -EINVAL;
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}
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/* Write link state to VF entry in VF config symbol */
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vf_offset = NFP_NET_VF_CFG_MB_SZ + vf * NFP_NET_VF_CFG_SZ +
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NFP_NET_VF_CFG_CTRL;
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vf_ctrl = readb(app->pf->vfcfg_tbl2 + vf_offset);
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vf_ctrl &= ~NFP_NET_VF_CFG_CTRL_LINK_STATE;
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vf_ctrl |= FIELD_PREP(NFP_NET_VF_CFG_CTRL_LINK_STATE, link_state);
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writeb(vf_ctrl, app->pf->vfcfg_tbl2 + vf_offset);
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return nfp_net_sriov_update(app, vf, NFP_NET_VF_CFG_MB_UPD_LINK_STATE,
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"link state");
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}
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int nfp_app_get_vf_config(struct net_device *netdev, int vf,
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struct ifla_vf_info *ivi)
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{
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struct nfp_app *app = nfp_app_from_netdev(netdev);
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unsigned int vf_offset;
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u16 vlan_tci;
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u32 mac_hi;
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u16 mac_lo;
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u8 flags;
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int err;
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err = nfp_net_sriov_check(app, vf, 0, "");
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if (err)
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return err;
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vf_offset = NFP_NET_VF_CFG_MB_SZ + vf * NFP_NET_VF_CFG_SZ;
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mac_hi = readl(app->pf->vfcfg_tbl2 + vf_offset);
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mac_lo = readw(app->pf->vfcfg_tbl2 + vf_offset + NFP_NET_VF_CFG_MAC_LO);
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flags = readb(app->pf->vfcfg_tbl2 + vf_offset + NFP_NET_VF_CFG_CTRL);
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vlan_tci = readw(app->pf->vfcfg_tbl2 + vf_offset + NFP_NET_VF_CFG_VLAN);
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memset(ivi, 0, sizeof(*ivi));
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ivi->vf = vf;
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put_unaligned_be32(mac_hi, &ivi->mac[0]);
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put_unaligned_be16(mac_lo, &ivi->mac[4]);
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ivi->vlan = FIELD_GET(NFP_NET_VF_CFG_VLAN_VID, vlan_tci);
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ivi->qos = FIELD_GET(NFP_NET_VF_CFG_VLAN_QOS, vlan_tci);
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ivi->spoofchk = FIELD_GET(NFP_NET_VF_CFG_CTRL_SPOOF, flags);
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ivi->linkstate = FIELD_GET(NFP_NET_VF_CFG_CTRL_LINK_STATE, flags);
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return 0;
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}
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86
drivers/net/ethernet/netronome/nfp/nfp_net_sriov.h
Normal file
86
drivers/net/ethernet/netronome/nfp/nfp_net_sriov.h
Normal file
@ -0,0 +1,86 @@
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/*
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* Copyright (C) 2017 Netronome Systems, Inc.
|
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*
|
||||
* 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.
|
||||
*/
|
||||
|
||||
#ifndef _NFP_NET_SRIOV_H_
|
||||
#define _NFP_NET_SRIOV_H_
|
||||
|
||||
/**
|
||||
* SRIOV VF configuration.
|
||||
* The configuration memory begins with a mailbox region for communication with
|
||||
* the firmware followed by individual VF entries.
|
||||
*/
|
||||
#define NFP_NET_VF_CFG_SZ 16
|
||||
#define NFP_NET_VF_CFG_MB_SZ 16
|
||||
|
||||
/* VF config mailbox */
|
||||
#define NFP_NET_VF_CFG_MB 0x0
|
||||
#define NFP_NET_VF_CFG_MB_CAP 0x0
|
||||
#define NFP_NET_VF_CFG_MB_CAP_MAC (0x1 << 0)
|
||||
#define NFP_NET_VF_CFG_MB_CAP_VLAN (0x1 << 1)
|
||||
#define NFP_NET_VF_CFG_MB_CAP_SPOOF (0x1 << 2)
|
||||
#define NFP_NET_VF_CFG_MB_CAP_LINK_STATE (0x1 << 3)
|
||||
#define NFP_NET_VF_CFG_MB_RET 0x2
|
||||
#define NFP_NET_VF_CFG_MB_UPD 0x4
|
||||
#define NFP_NET_VF_CFG_MB_UPD_MAC (0x1 << 0)
|
||||
#define NFP_NET_VF_CFG_MB_UPD_VLAN (0x1 << 1)
|
||||
#define NFP_NET_VF_CFG_MB_UPD_SPOOF (0x1 << 2)
|
||||
#define NFP_NET_VF_CFG_MB_UPD_LINK_STATE (0x1 << 3)
|
||||
#define NFP_NET_VF_CFG_MB_VF_NUM 0x7
|
||||
|
||||
/* VF config entry
|
||||
* MAC_LO is set that the MAC address can be read in a single 6 byte read
|
||||
* by the NFP
|
||||
*/
|
||||
#define NFP_NET_VF_CFG_MAC 0x0
|
||||
#define NFP_NET_VF_CFG_MAC_HI 0x0
|
||||
#define NFP_NET_VF_CFG_MAC_LO 0x6
|
||||
#define NFP_NET_VF_CFG_CTRL 0x4
|
||||
#define NFP_NET_VF_CFG_CTRL_SPOOF 0x4
|
||||
#define NFP_NET_VF_CFG_CTRL_LINK_STATE 0x3
|
||||
#define NFP_NET_VF_CFG_LS_MODE_AUTO 0
|
||||
#define NFP_NET_VF_CFG_LS_MODE_ENABLE 1
|
||||
#define NFP_NET_VF_CFG_LS_MODE_DISABLE 2
|
||||
#define NFP_NET_VF_CFG_VLAN 0x8
|
||||
#define NFP_NET_VF_CFG_VLAN_QOS 0xe000
|
||||
#define NFP_NET_VF_CFG_VLAN_VID 0x0fff
|
||||
|
||||
int nfp_app_set_vf_mac(struct net_device *netdev, int vf, u8 *mac);
|
||||
int nfp_app_set_vf_vlan(struct net_device *netdev, int vf, u16 vlan, u8 qos,
|
||||
__be16 vlan_proto);
|
||||
int nfp_app_set_vf_spoofchk(struct net_device *netdev, int vf, bool setting);
|
||||
int nfp_app_set_vf_link_state(struct net_device *netdev, int vf,
|
||||
int link_state);
|
||||
int nfp_app_get_vf_config(struct net_device *netdev, int vf,
|
||||
struct ifla_vf_info *ivi);
|
||||
|
||||
#endif /* _NFP_NET_SRIOV_H_ */
|
||||
@ -49,10 +49,22 @@ static int nfp_nic_init(struct nfp_app *app)
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int nfp_nic_sriov_enable(struct nfp_app *app, int num_vfs)
|
||||
{
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void nfp_nic_sriov_disable(struct nfp_app *app)
|
||||
{
|
||||
}
|
||||
|
||||
const struct nfp_app_type app_nic = {
|
||||
.id = NFP_APP_CORE_NIC,
|
||||
.name = "nic",
|
||||
|
||||
.init = nfp_nic_init,
|
||||
.vnic_init = nfp_app_nic_vnic_init,
|
||||
|
||||
.sriov_enable = nfp_nic_sriov_enable,
|
||||
.sriov_disable = nfp_nic_sriov_disable,
|
||||
};
|
||||
|
||||
Loading…
Reference in New Issue
Block a user