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OpenCloudOS-Kernel/drivers/net/ethernet/sfc/ef10_sriov.c

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/****************************************************************************
* Driver for Solarflare network controllers and boards
* Copyright 2015 Solarflare Communications Inc.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published
* by the Free Software Foundation, incorporated herein by reference.
*/
#include <linux/etherdevice.h>
#include <linux/pci.h>
#include <linux/module.h>
#include "net_driver.h"
#include "ef10_sriov.h"
#include "efx.h"
#include "nic.h"
#include "mcdi_pcol.h"
static int efx_ef10_evb_port_assign(struct efx_nic *efx, unsigned int port_id,
unsigned int vf_fn)
{
MCDI_DECLARE_BUF(inbuf, MC_CMD_EVB_PORT_ASSIGN_IN_LEN);
struct efx_ef10_nic_data *nic_data = efx->nic_data;
MCDI_SET_DWORD(inbuf, EVB_PORT_ASSIGN_IN_PORT_ID, port_id);
MCDI_POPULATE_DWORD_2(inbuf, EVB_PORT_ASSIGN_IN_FUNCTION,
EVB_PORT_ASSIGN_IN_PF, nic_data->pf_index,
EVB_PORT_ASSIGN_IN_VF, vf_fn);
return efx_mcdi_rpc(efx, MC_CMD_EVB_PORT_ASSIGN, inbuf, sizeof(inbuf),
NULL, 0, NULL);
}
static int efx_ef10_vswitch_alloc(struct efx_nic *efx, unsigned int port_id,
unsigned int vswitch_type)
{
MCDI_DECLARE_BUF(inbuf, MC_CMD_VSWITCH_ALLOC_IN_LEN);
int rc;
MCDI_SET_DWORD(inbuf, VSWITCH_ALLOC_IN_UPSTREAM_PORT_ID, port_id);
MCDI_SET_DWORD(inbuf, VSWITCH_ALLOC_IN_TYPE, vswitch_type);
MCDI_SET_DWORD(inbuf, VSWITCH_ALLOC_IN_NUM_VLAN_TAGS, 2);
MCDI_POPULATE_DWORD_1(inbuf, VSWITCH_ALLOC_IN_FLAGS,
VSWITCH_ALLOC_IN_FLAG_AUTO_PORT, 0);
/* Quietly try to allocate 2 VLAN tags */
rc = efx_mcdi_rpc_quiet(efx, MC_CMD_VSWITCH_ALLOC, inbuf, sizeof(inbuf),
NULL, 0, NULL);
/* If 2 VLAN tags is too many, revert to trying with 1 VLAN tags */
if (rc == -EPROTO) {
MCDI_SET_DWORD(inbuf, VSWITCH_ALLOC_IN_NUM_VLAN_TAGS, 1);
rc = efx_mcdi_rpc(efx, MC_CMD_VSWITCH_ALLOC, inbuf,
sizeof(inbuf), NULL, 0, NULL);
} else if (rc) {
efx_mcdi_display_error(efx, MC_CMD_VSWITCH_ALLOC,
MC_CMD_VSWITCH_ALLOC_IN_LEN,
NULL, 0, rc);
}
return rc;
}
static int efx_ef10_vswitch_free(struct efx_nic *efx, unsigned int port_id)
{
MCDI_DECLARE_BUF(inbuf, MC_CMD_VSWITCH_FREE_IN_LEN);
MCDI_SET_DWORD(inbuf, VSWITCH_FREE_IN_UPSTREAM_PORT_ID, port_id);
return efx_mcdi_rpc(efx, MC_CMD_VSWITCH_FREE, inbuf, sizeof(inbuf),
NULL, 0, NULL);
}
static int efx_ef10_vport_alloc(struct efx_nic *efx,
unsigned int port_id_in,
unsigned int vport_type,
u16 vlan,
unsigned int *port_id_out)
{
MCDI_DECLARE_BUF(inbuf, MC_CMD_VPORT_ALLOC_IN_LEN);
MCDI_DECLARE_BUF(outbuf, MC_CMD_VPORT_ALLOC_OUT_LEN);
size_t outlen;
int rc;
EFX_WARN_ON_PARANOID(!port_id_out);
MCDI_SET_DWORD(inbuf, VPORT_ALLOC_IN_UPSTREAM_PORT_ID, port_id_in);
MCDI_SET_DWORD(inbuf, VPORT_ALLOC_IN_TYPE, vport_type);
MCDI_SET_DWORD(inbuf, VPORT_ALLOC_IN_NUM_VLAN_TAGS,
(vlan != EFX_EF10_NO_VLAN));
MCDI_POPULATE_DWORD_1(inbuf, VPORT_ALLOC_IN_FLAGS,
VPORT_ALLOC_IN_FLAG_AUTO_PORT, 0);
if (vlan != EFX_EF10_NO_VLAN)
MCDI_POPULATE_DWORD_1(inbuf, VPORT_ALLOC_IN_VLAN_TAGS,
VPORT_ALLOC_IN_VLAN_TAG_0, vlan);
rc = efx_mcdi_rpc(efx, MC_CMD_VPORT_ALLOC, inbuf, sizeof(inbuf),
outbuf, sizeof(outbuf), &outlen);
if (rc)
return rc;
if (outlen < MC_CMD_VPORT_ALLOC_OUT_LEN)
return -EIO;
*port_id_out = MCDI_DWORD(outbuf, VPORT_ALLOC_OUT_VPORT_ID);
return 0;
}
static int efx_ef10_vport_free(struct efx_nic *efx, unsigned int port_id)
{
MCDI_DECLARE_BUF(inbuf, MC_CMD_VPORT_FREE_IN_LEN);
MCDI_SET_DWORD(inbuf, VPORT_FREE_IN_VPORT_ID, port_id);
return efx_mcdi_rpc(efx, MC_CMD_VPORT_FREE, inbuf, sizeof(inbuf),
NULL, 0, NULL);
}
static void efx_ef10_sriov_free_vf_vports(struct efx_nic *efx)
{
struct efx_ef10_nic_data *nic_data = efx->nic_data;
int i;
if (!nic_data->vf)
return;
for (i = 0; i < efx->vf_count; i++) {
struct ef10_vf *vf = nic_data->vf + i;
/* If VF is assigned, do not free the vport */
if (vf->pci_dev &&
vf->pci_dev->dev_flags & PCI_DEV_FLAGS_ASSIGNED)
continue;
if (vf->vport_assigned) {
efx_ef10_evb_port_assign(efx, EVB_PORT_ID_NULL, i);
vf->vport_assigned = 0;
}
if (!is_zero_ether_addr(vf->mac)) {
efx_ef10_vport_del_mac(efx, vf->vport_id, vf->mac);
eth_zero_addr(vf->mac);
}
if (vf->vport_id) {
efx_ef10_vport_free(efx, vf->vport_id);
vf->vport_id = 0;
}
vf->efx = NULL;
}
}
static void efx_ef10_sriov_free_vf_vswitching(struct efx_nic *efx)
{
struct efx_ef10_nic_data *nic_data = efx->nic_data;
efx_ef10_sriov_free_vf_vports(efx);
kfree(nic_data->vf);
nic_data->vf = NULL;
}
static int efx_ef10_sriov_assign_vf_vport(struct efx_nic *efx,
unsigned int vf_i)
{
struct efx_ef10_nic_data *nic_data = efx->nic_data;
struct ef10_vf *vf = nic_data->vf + vf_i;
int rc;
if (WARN_ON_ONCE(!nic_data->vf))
return -EOPNOTSUPP;
rc = efx_ef10_vport_alloc(efx, EVB_PORT_ID_ASSIGNED,
MC_CMD_VPORT_ALLOC_IN_VPORT_TYPE_NORMAL,
vf->vlan, &vf->vport_id);
if (rc)
return rc;
rc = efx_ef10_vport_add_mac(efx, vf->vport_id, vf->mac);
if (rc) {
eth_zero_addr(vf->mac);
return rc;
}
rc = efx_ef10_evb_port_assign(efx, vf->vport_id, vf_i);
if (rc)
return rc;
vf->vport_assigned = 1;
return 0;
}
static int efx_ef10_sriov_alloc_vf_vswitching(struct efx_nic *efx)
{
struct efx_ef10_nic_data *nic_data = efx->nic_data;
unsigned int i;
int rc;
nic_data->vf = kcalloc(efx->vf_count, sizeof(struct ef10_vf),
GFP_KERNEL);
if (!nic_data->vf)
return -ENOMEM;
for (i = 0; i < efx->vf_count; i++) {
random_ether_addr(nic_data->vf[i].mac);
nic_data->vf[i].efx = NULL;
nic_data->vf[i].vlan = EFX_EF10_NO_VLAN;
rc = efx_ef10_sriov_assign_vf_vport(efx, i);
if (rc)
goto fail;
}
return 0;
fail:
efx_ef10_sriov_free_vf_vports(efx);
kfree(nic_data->vf);
nic_data->vf = NULL;
return rc;
}
static int efx_ef10_sriov_restore_vf_vswitching(struct efx_nic *efx)
{
unsigned int i;
int rc;
for (i = 0; i < efx->vf_count; i++) {
rc = efx_ef10_sriov_assign_vf_vport(efx, i);
if (rc)
goto fail;
}
return 0;
fail:
efx_ef10_sriov_free_vf_vswitching(efx);
return rc;
}
static int efx_ef10_vadaptor_alloc_set_features(struct efx_nic *efx)
{
struct efx_ef10_nic_data *nic_data = efx->nic_data;
u32 port_flags;
int rc;
rc = efx_ef10_vadaptor_alloc(efx, nic_data->vport_id);
if (rc)
goto fail_vadaptor_alloc;
rc = efx_ef10_vadaptor_query(efx, nic_data->vport_id,
&port_flags, NULL, NULL);
if (rc)
goto fail_vadaptor_query;
if (port_flags &
(1 << MC_CMD_VPORT_ALLOC_IN_FLAG_VLAN_RESTRICT_LBN))
efx->fixed_features |= NETIF_F_HW_VLAN_CTAG_FILTER;
else
efx->fixed_features &= ~NETIF_F_HW_VLAN_CTAG_FILTER;
return 0;
fail_vadaptor_query:
efx_ef10_vadaptor_free(efx, EVB_PORT_ID_ASSIGNED);
fail_vadaptor_alloc:
return rc;
}
/* On top of the default firmware vswitch setup, create a VEB vswitch and
* expansion vport for use by this function.
*/
int efx_ef10_vswitching_probe_pf(struct efx_nic *efx)
{
struct efx_ef10_nic_data *nic_data = efx->nic_data;
struct net_device *net_dev = efx->net_dev;
int rc;
if (pci_sriov_get_totalvfs(efx->pci_dev) <= 0) {
/* vswitch not needed as we have no VFs */
efx_ef10_vadaptor_alloc_set_features(efx);
return 0;
}
rc = efx_ef10_vswitch_alloc(efx, EVB_PORT_ID_ASSIGNED,
MC_CMD_VSWITCH_ALLOC_IN_VSWITCH_TYPE_VEB);
if (rc)
goto fail1;
rc = efx_ef10_vport_alloc(efx, EVB_PORT_ID_ASSIGNED,
MC_CMD_VPORT_ALLOC_IN_VPORT_TYPE_NORMAL,
EFX_EF10_NO_VLAN, &nic_data->vport_id);
if (rc)
goto fail2;
rc = efx_ef10_vport_add_mac(efx, nic_data->vport_id, net_dev->dev_addr);
if (rc)
goto fail3;
ether_addr_copy(nic_data->vport_mac, net_dev->dev_addr);
rc = efx_ef10_vadaptor_alloc_set_features(efx);
if (rc)
goto fail4;
return 0;
fail4:
efx_ef10_vport_del_mac(efx, nic_data->vport_id, nic_data->vport_mac);
eth_zero_addr(nic_data->vport_mac);
fail3:
efx_ef10_vport_free(efx, nic_data->vport_id);
nic_data->vport_id = EVB_PORT_ID_ASSIGNED;
fail2:
efx_ef10_vswitch_free(efx, EVB_PORT_ID_ASSIGNED);
fail1:
return rc;
}
int efx_ef10_vswitching_probe_vf(struct efx_nic *efx)
{
return efx_ef10_vadaptor_alloc_set_features(efx);
}
int efx_ef10_vswitching_restore_pf(struct efx_nic *efx)
{
struct efx_ef10_nic_data *nic_data = efx->nic_data;
int rc;
if (!nic_data->must_probe_vswitching)
return 0;
rc = efx_ef10_vswitching_probe_pf(efx);
if (rc)
goto fail;
rc = efx_ef10_sriov_restore_vf_vswitching(efx);
if (rc)
goto fail;
nic_data->must_probe_vswitching = false;
fail:
return rc;
}
int efx_ef10_vswitching_restore_vf(struct efx_nic *efx)
{
struct efx_ef10_nic_data *nic_data = efx->nic_data;
int rc;
if (!nic_data->must_probe_vswitching)
return 0;
rc = efx_ef10_vadaptor_free(efx, EVB_PORT_ID_ASSIGNED);
if (rc)
return rc;
nic_data->must_probe_vswitching = false;
return 0;
}
void efx_ef10_vswitching_remove_pf(struct efx_nic *efx)
{
struct efx_ef10_nic_data *nic_data = efx->nic_data;
efx_ef10_sriov_free_vf_vswitching(efx);
efx_ef10_vadaptor_free(efx, nic_data->vport_id);
if (nic_data->vport_id == EVB_PORT_ID_ASSIGNED)
return; /* No vswitch was ever created */
if (!is_zero_ether_addr(nic_data->vport_mac)) {
efx_ef10_vport_del_mac(efx, nic_data->vport_id,
efx->net_dev->dev_addr);
eth_zero_addr(nic_data->vport_mac);
}
efx_ef10_vport_free(efx, nic_data->vport_id);
nic_data->vport_id = EVB_PORT_ID_ASSIGNED;
/* Only free the vswitch if no VFs are assigned */
if (!pci_vfs_assigned(efx->pci_dev))
efx_ef10_vswitch_free(efx, nic_data->vport_id);
}
void efx_ef10_vswitching_remove_vf(struct efx_nic *efx)
{
efx_ef10_vadaptor_free(efx, EVB_PORT_ID_ASSIGNED);
}
static int efx_ef10_pci_sriov_enable(struct efx_nic *efx, int num_vfs)
{
int rc = 0;
struct pci_dev *dev = efx->pci_dev;
efx->vf_count = num_vfs;
rc = efx_ef10_sriov_alloc_vf_vswitching(efx);
if (rc)
goto fail1;
rc = pci_enable_sriov(dev, num_vfs);
if (rc)
goto fail2;
return 0;
fail2:
efx_ef10_sriov_free_vf_vswitching(efx);
fail1:
efx->vf_count = 0;
netif_err(efx, probe, efx->net_dev,
"Failed to enable SRIOV VFs\n");
return rc;
}
static int efx_ef10_pci_sriov_disable(struct efx_nic *efx, bool force)
{
struct pci_dev *dev = efx->pci_dev;
unsigned int vfs_assigned = 0;
vfs_assigned = pci_vfs_assigned(dev);
if (vfs_assigned && !force) {
netif_info(efx, drv, efx->net_dev, "VFs are assigned to guests; "
"please detach them before disabling SR-IOV\n");
return -EBUSY;
}
if (!vfs_assigned)
pci_disable_sriov(dev);
efx_ef10_sriov_free_vf_vswitching(efx);
efx->vf_count = 0;
return 0;
}
int efx_ef10_sriov_configure(struct efx_nic *efx, int num_vfs)
{
if (num_vfs == 0)
return efx_ef10_pci_sriov_disable(efx, false);
else
return efx_ef10_pci_sriov_enable(efx, num_vfs);
}
int efx_ef10_sriov_init(struct efx_nic *efx)
{
return 0;
}
void efx_ef10_sriov_fini(struct efx_nic *efx)
{
struct efx_ef10_nic_data *nic_data = efx->nic_data;
unsigned int i;
int rc;
if (!nic_data->vf) {
/* Remove any un-assigned orphaned VFs */
if (pci_num_vf(efx->pci_dev) && !pci_vfs_assigned(efx->pci_dev))
pci_disable_sriov(efx->pci_dev);
return;
}
/* Remove any VFs in the host */
for (i = 0; i < efx->vf_count; ++i) {
struct efx_nic *vf_efx = nic_data->vf[i].efx;
if (vf_efx)
vf_efx->pci_dev->driver->remove(vf_efx->pci_dev);
}
rc = efx_ef10_pci_sriov_disable(efx, true);
if (rc)
netif_dbg(efx, drv, efx->net_dev,
"Disabling SRIOV was not successful rc=%d\n", rc);
else
netif_dbg(efx, drv, efx->net_dev, "SRIOV disabled\n");
}
static int efx_ef10_vport_del_vf_mac(struct efx_nic *efx, unsigned int port_id,
u8 *mac)
{
MCDI_DECLARE_BUF(inbuf, MC_CMD_VPORT_DEL_MAC_ADDRESS_IN_LEN);
MCDI_DECLARE_BUF_ERR(outbuf);
size_t outlen;
int rc;
MCDI_SET_DWORD(inbuf, VPORT_DEL_MAC_ADDRESS_IN_VPORT_ID, port_id);
ether_addr_copy(MCDI_PTR(inbuf, VPORT_DEL_MAC_ADDRESS_IN_MACADDR), mac);
rc = efx_mcdi_rpc(efx, MC_CMD_VPORT_DEL_MAC_ADDRESS, inbuf,
sizeof(inbuf), outbuf, sizeof(outbuf), &outlen);
return rc;
}
int efx_ef10_sriov_set_vf_mac(struct efx_nic *efx, int vf_i, u8 *mac)
{
struct efx_ef10_nic_data *nic_data = efx->nic_data;
struct ef10_vf *vf;
int rc;
if (!nic_data->vf)
return -EOPNOTSUPP;
if (vf_i >= efx->vf_count)
return -EINVAL;
vf = nic_data->vf + vf_i;
if (vf->efx) {
efx_device_detach_sync(vf->efx);
efx_net_stop(vf->efx->net_dev);
down_write(&vf->efx->filter_sem);
vf->efx->type->filter_table_remove(vf->efx);
rc = efx_ef10_vadaptor_free(vf->efx, EVB_PORT_ID_ASSIGNED);
if (rc) {
up_write(&vf->efx->filter_sem);
return rc;
}
}
rc = efx_ef10_evb_port_assign(efx, EVB_PORT_ID_NULL, vf_i);
if (rc)
return rc;
if (!is_zero_ether_addr(vf->mac)) {
rc = efx_ef10_vport_del_vf_mac(efx, vf->vport_id, vf->mac);
if (rc)
return rc;
}
if (!is_zero_ether_addr(mac)) {
rc = efx_ef10_vport_add_mac(efx, vf->vport_id, mac);
if (rc) {
eth_zero_addr(vf->mac);
goto fail;
}
if (vf->efx)
ether_addr_copy(vf->efx->net_dev->dev_addr, mac);
}
ether_addr_copy(vf->mac, mac);
rc = efx_ef10_evb_port_assign(efx, vf->vport_id, vf_i);
if (rc)
goto fail;
if (vf->efx) {
/* VF cannot use the vport_id that the PF created */
rc = efx_ef10_vadaptor_alloc(vf->efx, EVB_PORT_ID_ASSIGNED);
if (rc) {
up_write(&vf->efx->filter_sem);
return rc;
}
vf->efx->type->filter_table_probe(vf->efx);
up_write(&vf->efx->filter_sem);
efx_net_open(vf->efx->net_dev);
efx_device_attach_if_not_resetting(vf->efx);
}
return 0;
fail:
eth_zero_addr(vf->mac);
return rc;
}
int efx_ef10_sriov_set_vf_vlan(struct efx_nic *efx, int vf_i, u16 vlan,
u8 qos)
{
struct efx_ef10_nic_data *nic_data = efx->nic_data;
struct ef10_vf *vf;
u16 old_vlan, new_vlan;
int rc = 0, rc2 = 0;
if (vf_i >= efx->vf_count)
return -EINVAL;
if (qos != 0)
return -EINVAL;
vf = nic_data->vf + vf_i;
new_vlan = (vlan == 0) ? EFX_EF10_NO_VLAN : vlan;
if (new_vlan == vf->vlan)
return 0;
if (vf->efx) {
efx_device_detach_sync(vf->efx);
efx_net_stop(vf->efx->net_dev);
mutex_lock(&vf->efx->mac_lock);
down_write(&vf->efx->filter_sem);
vf->efx->type->filter_table_remove(vf->efx);
rc = efx_ef10_vadaptor_free(vf->efx, EVB_PORT_ID_ASSIGNED);
if (rc)
goto restore_filters;
}
if (vf->vport_assigned) {
rc = efx_ef10_evb_port_assign(efx, EVB_PORT_ID_NULL, vf_i);
if (rc) {
netif_warn(efx, drv, efx->net_dev,
"Failed to change vlan on VF %d.\n", vf_i);
netif_warn(efx, drv, efx->net_dev,
"This is likely because the VF is bound to a driver in a VM.\n");
netif_warn(efx, drv, efx->net_dev,
"Please unload the driver in the VM.\n");
goto restore_vadaptor;
}
vf->vport_assigned = 0;
}
if (!is_zero_ether_addr(vf->mac)) {
rc = efx_ef10_vport_del_mac(efx, vf->vport_id, vf->mac);
if (rc)
goto restore_evb_port;
}
if (vf->vport_id) {
rc = efx_ef10_vport_free(efx, vf->vport_id);
if (rc)
goto restore_mac;
vf->vport_id = 0;
}
/* Do the actual vlan change */
old_vlan = vf->vlan;
vf->vlan = new_vlan;
/* Restore everything in reverse order */
rc = efx_ef10_vport_alloc(efx, EVB_PORT_ID_ASSIGNED,
MC_CMD_VPORT_ALLOC_IN_VPORT_TYPE_NORMAL,
vf->vlan, &vf->vport_id);
if (rc)
goto reset_nic_up_write;
restore_mac:
if (!is_zero_ether_addr(vf->mac)) {
rc2 = efx_ef10_vport_add_mac(efx, vf->vport_id, vf->mac);
if (rc2) {
eth_zero_addr(vf->mac);
goto reset_nic_up_write;
}
}
restore_evb_port:
rc2 = efx_ef10_evb_port_assign(efx, vf->vport_id, vf_i);
if (rc2)
goto reset_nic_up_write;
else
vf->vport_assigned = 1;
restore_vadaptor:
if (vf->efx) {
rc2 = efx_ef10_vadaptor_alloc(vf->efx, EVB_PORT_ID_ASSIGNED);
if (rc2)
goto reset_nic_up_write;
}
restore_filters:
if (vf->efx) {
rc2 = vf->efx->type->filter_table_probe(vf->efx);
if (rc2)
goto reset_nic_up_write;
up_write(&vf->efx->filter_sem);
mutex_unlock(&vf->efx->mac_lock);
rc2 = efx_net_open(vf->efx->net_dev);
if (rc2)
goto reset_nic;
efx_device_attach_if_not_resetting(vf->efx);
}
return rc;
reset_nic_up_write:
if (vf->efx) {
up_write(&vf->efx->filter_sem);
mutex_unlock(&vf->efx->mac_lock);
}
reset_nic:
if (vf->efx) {
netif_err(efx, drv, efx->net_dev,
"Failed to restore VF - scheduling reset.\n");
efx_schedule_reset(vf->efx, RESET_TYPE_DATAPATH);
} else {
netif_err(efx, drv, efx->net_dev,
"Failed to restore the VF and cannot reset the VF "
"- VF is not functional.\n");
netif_err(efx, drv, efx->net_dev,
"Please reload the driver attached to the VF.\n");
}
return rc ? rc : rc2;
}
int efx_ef10_sriov_set_vf_spoofchk(struct efx_nic *efx, int vf_i,
bool spoofchk)
{
return spoofchk ? -EOPNOTSUPP : 0;
}
int efx_ef10_sriov_set_vf_link_state(struct efx_nic *efx, int vf_i,
int link_state)
{
MCDI_DECLARE_BUF(inbuf, MC_CMD_LINK_STATE_MODE_IN_LEN);
struct efx_ef10_nic_data *nic_data = efx->nic_data;
BUILD_BUG_ON(IFLA_VF_LINK_STATE_AUTO !=
MC_CMD_LINK_STATE_MODE_IN_LINK_STATE_AUTO);
BUILD_BUG_ON(IFLA_VF_LINK_STATE_ENABLE !=
MC_CMD_LINK_STATE_MODE_IN_LINK_STATE_UP);
BUILD_BUG_ON(IFLA_VF_LINK_STATE_DISABLE !=
MC_CMD_LINK_STATE_MODE_IN_LINK_STATE_DOWN);
MCDI_POPULATE_DWORD_2(inbuf, LINK_STATE_MODE_IN_FUNCTION,
LINK_STATE_MODE_IN_FUNCTION_PF,
nic_data->pf_index,
LINK_STATE_MODE_IN_FUNCTION_VF, vf_i);
MCDI_SET_DWORD(inbuf, LINK_STATE_MODE_IN_NEW_MODE, link_state);
return efx_mcdi_rpc(efx, MC_CMD_LINK_STATE_MODE, inbuf, sizeof(inbuf),
NULL, 0, NULL); /* don't care what old mode was */
}
int efx_ef10_sriov_get_vf_config(struct efx_nic *efx, int vf_i,
struct ifla_vf_info *ivf)
{
MCDI_DECLARE_BUF(inbuf, MC_CMD_LINK_STATE_MODE_IN_LEN);
MCDI_DECLARE_BUF(outbuf, MC_CMD_LINK_STATE_MODE_OUT_LEN);
struct efx_ef10_nic_data *nic_data = efx->nic_data;
struct ef10_vf *vf;
size_t outlen;
int rc;
if (vf_i >= efx->vf_count)
return -EINVAL;
if (!nic_data->vf)
return -EOPNOTSUPP;
vf = nic_data->vf + vf_i;
ivf->vf = vf_i;
ivf->min_tx_rate = 0;
ivf->max_tx_rate = 0;
ether_addr_copy(ivf->mac, vf->mac);
ivf->vlan = (vf->vlan == EFX_EF10_NO_VLAN) ? 0 : vf->vlan;
ivf->qos = 0;
MCDI_POPULATE_DWORD_2(inbuf, LINK_STATE_MODE_IN_FUNCTION,
LINK_STATE_MODE_IN_FUNCTION_PF,
nic_data->pf_index,
LINK_STATE_MODE_IN_FUNCTION_VF, vf_i);
MCDI_SET_DWORD(inbuf, LINK_STATE_MODE_IN_NEW_MODE,
MC_CMD_LINK_STATE_MODE_IN_DO_NOT_CHANGE);
rc = efx_mcdi_rpc(efx, MC_CMD_LINK_STATE_MODE, inbuf, sizeof(inbuf),
outbuf, sizeof(outbuf), &outlen);
if (rc)
return rc;
if (outlen < MC_CMD_LINK_STATE_MODE_OUT_LEN)
return -EIO;
ivf->linkstate = MCDI_DWORD(outbuf, LINK_STATE_MODE_OUT_OLD_MODE);
return 0;
}
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