// SPDX-License-Identifier: GPL-2.0-only
|
/****************************************************************************
|
* Driver for Solarflare network controllers and boards
|
* Copyright 2015 Solarflare Communications Inc.
|
*/
|
#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++) {
|
eth_random_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)
|
{
|
u32 port_flags;
|
int rc;
|
|
rc = efx_ef10_vadaptor_alloc(efx, efx->vport_id);
|
if (rc)
|
goto fail_vadaptor_alloc;
|
|
rc = efx_ef10_vadaptor_query(efx, efx->vport_id,
|
&port_flags, NULL, NULL);
|
if (rc)
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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, &efx->vport_id);
|
if (rc)
|
goto fail2;
|
|
rc = efx_ef10_vport_add_mac(efx, efx->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, efx->vport_id, nic_data->vport_mac);
|
eth_zero_addr(nic_data->vport_mac);
|
fail3:
|
efx_ef10_vport_free(efx, efx->vport_id);
|
efx->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, efx->vport_id);
|
|
if (efx->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, efx->vport_id,
|
efx->net_dev->dev_addr);
|
eth_zero_addr(nic_data->vport_mac);
|
}
|
efx_ef10_vport_free(efx, efx->vport_id);
|
efx->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, efx->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;
|
}
|
|
/* Disable SRIOV and remove VFs
|
* If some VFs are attached to a guest (using Xen, only) nothing is
|
* done if force=false, and vports are freed if force=true (for the non
|
* attachedc ones, only) but SRIOV is not disabled and VFs are not
|
* removed in either case.
|
*/
|
static int efx_ef10_pci_sriov_disable(struct efx_nic *efx, bool force)
|
{
|
struct pci_dev *dev = efx->pci_dev;
|
struct efx_ef10_nic_data *nic_data = efx->nic_data;
|
unsigned int vfs_assigned = pci_vfs_assigned(dev);
|
int i, rc = 0;
|
|
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) {
|
for (i = 0; i < efx->vf_count; i++)
|
nic_data->vf[i].pci_dev = NULL;
|
pci_disable_sriov(dev);
|
} else {
|
rc = -EBUSY;
|
}
|
|
efx_ef10_sriov_free_vf_vswitching(efx);
|
efx->vf_count = 0;
|
return rc;
|
}
|
|
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;
|
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;
|
}
|
|
/* Disable SRIOV and remove any VFs in the host */
|
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)
|
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 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 */
|
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;
|
}
|
|
static int efx_ef10_sriov_set_privilege_mask(struct efx_nic *efx, int vf_i,
|
u32 mask, u32 value)
|
{
|
MCDI_DECLARE_BUF(pm_outbuf, MC_CMD_PRIVILEGE_MASK_OUT_LEN);
|
MCDI_DECLARE_BUF(pm_inbuf, MC_CMD_PRIVILEGE_MASK_IN_LEN);
|
struct efx_ef10_nic_data *nic_data = efx->nic_data;
|
u32 old_mask, new_mask;
|
size_t outlen;
|
int rc;
|
|
EFX_WARN_ON_PARANOID((value & ~mask) != 0);
|
|
/* Get privilege mask */
|
MCDI_POPULATE_DWORD_2(pm_inbuf, PRIVILEGE_MASK_IN_FUNCTION,
|
PRIVILEGE_MASK_IN_FUNCTION_PF, nic_data->pf_index,
|
PRIVILEGE_MASK_IN_FUNCTION_VF, vf_i);
|
|
rc = efx_mcdi_rpc(efx, MC_CMD_PRIVILEGE_MASK,
|
pm_inbuf, sizeof(pm_inbuf),
|
pm_outbuf, sizeof(pm_outbuf), &outlen);
|
|
if (rc != 0)
|
return rc;
|
if (outlen != MC_CMD_PRIVILEGE_MASK_OUT_LEN)
|
return -EIO;
|
|
old_mask = MCDI_DWORD(pm_outbuf, PRIVILEGE_MASK_OUT_OLD_MASK);
|
|
new_mask = old_mask & ~mask;
|
new_mask |= value;
|
|
if (new_mask == old_mask)
|
return 0;
|
|
new_mask |= MC_CMD_PRIVILEGE_MASK_IN_DO_CHANGE;
|
|
/* Set privilege mask */
|
MCDI_SET_DWORD(pm_inbuf, PRIVILEGE_MASK_IN_NEW_MASK, new_mask);
|
|
rc = efx_mcdi_rpc(efx, MC_CMD_PRIVILEGE_MASK,
|
pm_inbuf, sizeof(pm_inbuf),
|
pm_outbuf, sizeof(pm_outbuf), &outlen);
|
|
if (rc != 0)
|
return rc;
|
if (outlen != MC_CMD_PRIVILEGE_MASK_OUT_LEN)
|
return -EIO;
|
|
return 0;
|
}
|
|
int efx_ef10_sriov_set_vf_spoofchk(struct efx_nic *efx, int vf_i, bool spoofchk)
|
{
|
struct efx_ef10_nic_data *nic_data = efx->nic_data;
|
|
/* Can't enable spoofchk if firmware doesn't support it. */
|
if (!(nic_data->datapath_caps &
|
BIT(MC_CMD_GET_CAPABILITIES_OUT_TX_MAC_SECURITY_FILTERING_LBN)) &&
|
spoofchk)
|
return -EOPNOTSUPP;
|
|
return efx_ef10_sriov_set_privilege_mask(efx, vf_i,
|
MC_CMD_PRIVILEGE_MASK_IN_GRP_MAC_SPOOFING_TX,
|
spoofchk ? 0 : MC_CMD_PRIVILEGE_MASK_IN_GRP_MAC_SPOOFING_TX);
|
}
|
|
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;
|
}
|
