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sfc: Revert SRIOV changes.

Browse Source 
This reverts commits:

d92916f71a ("sfc: Own header for nic-specific sriov functions,")
25672dba95 ("sfc: Enable VF's via a write to the sysfs file
 sriov_numvfs")

As they break the build with SRIOV disabled and there is no
easy way to fix it the way things are arranged.

Reported-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2015-04-08 16:30:01 -04:00
parent c1f8667677
commit 51df60f5a4
16 changed files with 203 additions and 450 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/net/ethernet/sfc/Makefile
View File

@ -3,6 +3,6 @@ sfc-y += efx.o nic.o farch.o falcon.o siena.o ef10.o tx.o \
tenxpress.o txc43128_phy.o falcon_boards.o \
mcdi.o mcdi_port.o mcdi_mon.o ptp.o
sfc-$(CONFIG_SFC_MTD) += mtd.o
sfc-$(CONFIG_SFC_SRIOV) += sriov.o siena_sriov.o ef10_sriov.o
sfc-$(CONFIG_SFC_SRIOV) += siena_sriov.o
obj-$(CONFIG_SFC) += sfc.o

7
drivers/net/ethernet/sfc/ef10.c
View File

@ -15,7 +15,6 @@
#include "nic.h"
#include "workarounds.h"
#include "selftest.h"
#include "ef10_sriov.h"
#include <linux/in.h>
#include <linux/jhash.h>
#include <linux/wait.h>
@ -3690,17 +3689,11 @@ const struct efx_nic_type efx_hunt_a0_nic_type = {
.ptp_write_host_time = efx_ef10_ptp_write_host_time,
.ptp_set_ts_sync_events = efx_ef10_ptp_set_ts_sync_events,
.ptp_set_ts_config = efx_ef10_ptp_set_ts_config,
.sriov_configure = efx_ef10_sriov_configure,
.sriov_init = efx_ef10_sriov_init,
.sriov_fini = efx_ef10_sriov_fini,
.sriov_mac_address_changed = efx_ef10_sriov_mac_address_changed,
.sriov_wanted = efx_ef10_sriov_wanted,
.sriov_reset = efx_ef10_sriov_reset,
.sriov_flr = efx_ef10_sriov_flr,
.sriov_set_vf_mac = efx_ef10_sriov_set_vf_mac,
.sriov_set_vf_vlan = efx_ef10_sriov_set_vf_vlan,
.sriov_set_vf_spoofchk = efx_ef10_sriov_set_vf_spoofchk,
.sriov_get_vf_config = efx_ef10_sriov_get_vf_config,
.revision = EFX_REV_HUNT_A0,
.max_dma_mask = DMA_BIT_MASK(ESF_DZ_TX_KER_BUF_ADDR_WIDTH),

52
drivers/net/ethernet/sfc/ef10_sriov.c
View File

@ -1,52 +0,0 @@
/****************************************************************************
* 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/pci.h>
#include <linux/module.h>
#include "net_driver.h"
#include "efx.h"
#include "nic.h"
#include "mcdi_pcol.h"
#ifdef CONFIG_SFC_SRIOV
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 = pci_enable_sriov(dev, num_vfs);
if (rc) {
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)
{
struct pci_dev *dev = efx->pci_dev;
efx->vf_count = 0;
pci_disable_sriov(dev);
return 0;
}
#endif
int efx_ef10_sriov_configure(struct efx_nic *efx, int num_vfs)
{
#ifdef CONFIG_SFC_SRIOV
if (num_vfs == 0)
return efx_ef10_pci_sriov_disable(efx);
else
return efx_ef10_pci_sriov_enable(efx, num_vfs);
#else
return -EOPNOTSUPP;
#endif
}

58
drivers/net/ethernet/sfc/ef10_sriov.h
View File

@ -1,58 +0,0 @@
/****************************************************************************
* 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.
*/
#ifndef EF10_SRIOV_H
#define EF10_SRIOV_H
#include "net_driver.h"
static inline bool efx_ef10_sriov_wanted(struct efx_nic *efx)
{
return false;
}
int efx_ef10_sriov_configure(struct efx_nic *efx, int num_vfs);
static inline int efx_ef10_sriov_init(struct efx_nic *efx)
{
return -EOPNOTSUPP;
}
static inline void efx_ef10_sriov_mac_address_changed(struct efx_nic *efx) {}
static inline void efx_ef10_sriov_reset(struct efx_nic *efx) {}
static inline void efx_ef10_sriov_fini(struct efx_nic *efx) {}
static inline void efx_ef10_sriov_flr(struct efx_nic *efx, unsigned vf_i) {}
#ifdef CONFIG_SFC_SRIOV
static inline int efx_ef10_sriov_set_vf_mac(struct efx_nic *efx, int vf,
u8 *mac)
{
return -EOPNOTSUPP;
}
static inline int efx_ef10_sriov_set_vf_vlan(struct efx_nic *efx, int vf,
u16 vlan, u8 qos)
{
return -EOPNOTSUPP;
}
static inline int efx_ef10_sriov_set_vf_spoofchk(struct efx_nic *efx, int vf,
bool spoofchk)
{
return -EOPNOTSUPP;
}
static inline int efx_ef10_sriov_get_vf_config(struct efx_nic *efx, int vf,
struct ifla_vf_info *ivf)
{
return -EOPNOTSUPP;
}
#endif /* CONFIG_SFC_SRIOV */
#endif /* EF10_SRIOV_H */

118
drivers/net/ethernet/sfc/efx.c
View File

@ -26,7 +26,6 @@
#include "efx.h"
#include "nic.h"
#include "selftest.h"
#include "sriov.h"
#include "mcdi.h"
#include "workarounds.h"
@ -1315,19 +1314,15 @@ static unsigned int efx_wanted_parallelism(struct efx_nic *efx)
/* If RSS is requested for the PF *and* VFs then we can't write RSS
* table entries that are inaccessible to VFs
*/
#ifdef CONFIG_SFC_SRIOV
if (efx->type->sriov_wanted) {
if (efx->type->sriov_wanted(efx) && efx_vf_size(efx) > 1 &&
count > efx_vf_size(efx)) {
netif_warn(efx, probe, efx->net_dev,
"Reducing number of RSS channels from %u to %u for "
"VF support. Increase vf-msix-limit to use more "
"channels on the PF.\n",
count, efx_vf_size(efx));
count = efx_vf_size(efx);
}
if (efx->type->sriov_wanted(efx) && efx_vf_size(efx) > 1 &&
count > efx_vf_size(efx)) {
netif_warn(efx, probe, efx->net_dev,
"Reducing number of RSS channels from %u to %u for "
"VF support. Increase vf-msix-limit to use more "
"channels on the PF.\n",
count, efx_vf_size(efx));
count = efx_vf_size(efx);
}
#endif
return count;
}
@ -1431,13 +1426,10 @@ static int efx_probe_interrupts(struct efx_nic *efx)
}
/* RSS might be usable on VFs even if it is disabled on the PF */
#ifdef CONFIG_SFC_SRIOV
if (efx->type->sriov_wanted) {
efx->rss_spread = ((efx->n_rx_channels > 1 ||
!efx->type->sriov_wanted(efx)) ?
efx->n_rx_channels : efx_vf_size(efx));
}
#endif
efx->rss_spread = ((efx->n_rx_channels > 1 ||
!efx->type->sriov_wanted(efx)) ?
efx->n_rx_channels : efx_vf_size(efx));
return 0;
}
@ -2176,8 +2168,7 @@ static int efx_set_mac_address(struct net_device *net_dev, void *data)
}
ether_addr_copy(net_dev->dev_addr, new_addr);
if (efx->type->sriov_mac_address_changed)
efx->type->sriov_mac_address_changed(efx);
efx->type->sriov_mac_address_changed(efx);
/* Reconfigure the MAC */
mutex_lock(&efx->mac_lock);
@ -2208,7 +2199,7 @@ static int efx_set_features(struct net_device *net_dev, netdev_features_t data)
return 0;
}
static const struct net_device_ops efx_netdev_ops = {
static const struct net_device_ops efx_farch_netdev_ops = {
.ndo_open = efx_net_open,
.ndo_stop = efx_net_stop,
.ndo_get_stats64 = efx_net_stats,
@ -2221,10 +2212,10 @@ static const struct net_device_ops efx_netdev_ops = {
.ndo_set_rx_mode = efx_set_rx_mode,
.ndo_set_features = efx_set_features,
#ifdef CONFIG_SFC_SRIOV
.ndo_set_vf_mac = efx_sriov_set_vf_mac,
.ndo_set_vf_vlan = efx_sriov_set_vf_vlan,
.ndo_set_vf_spoofchk = efx_sriov_set_vf_spoofchk,
.ndo_get_vf_config = efx_sriov_get_vf_config,
.ndo_set_vf_mac = efx_siena_sriov_set_vf_mac,
.ndo_set_vf_vlan = efx_siena_sriov_set_vf_vlan,
.ndo_set_vf_spoofchk = efx_siena_sriov_set_vf_spoofchk,
.ndo_get_vf_config = efx_siena_sriov_get_vf_config,
#endif
#ifdef CONFIG_NET_POLL_CONTROLLER
.ndo_poll_controller = efx_netpoll,
@ -2238,6 +2229,29 @@ static const struct net_device_ops efx_netdev_ops = {
#endif
};
static const struct net_device_ops efx_ef10_netdev_ops = {
.ndo_open = efx_net_open,
.ndo_stop = efx_net_stop,
.ndo_get_stats64 = efx_net_stats,
.ndo_tx_timeout = efx_watchdog,
.ndo_start_xmit = efx_hard_start_xmit,
.ndo_validate_addr = eth_validate_addr,
.ndo_do_ioctl = efx_ioctl,
.ndo_change_mtu = efx_change_mtu,
.ndo_set_mac_address = efx_set_mac_address,
.ndo_set_rx_mode = efx_set_rx_mode,
.ndo_set_features = efx_set_features,
#ifdef CONFIG_NET_POLL_CONTROLLER
.ndo_poll_controller = efx_netpoll,
#endif
#ifdef CONFIG_NET_RX_BUSY_POLL
.ndo_busy_poll = efx_busy_poll,
#endif
#ifdef CONFIG_RFS_ACCEL
.ndo_rx_flow_steer = efx_filter_rfs,
#endif
};
static void efx_update_name(struct efx_nic *efx)
{
strcpy(efx->name, efx->net_dev->name);
@ -2250,7 +2264,8 @@ static int efx_netdev_event(struct notifier_block *this,
{
struct net_device *net_dev = netdev_notifier_info_to_dev(ptr);
if ((net_dev->netdev_ops == &efx_netdev_ops) &&
if ((net_dev->netdev_ops == &efx_farch_netdev_ops ||
net_dev->netdev_ops == &efx_ef10_netdev_ops) &&
event == NETDEV_CHANGENAME)
efx_update_name(netdev_priv(net_dev));
@ -2277,9 +2292,12 @@ static int efx_register_netdev(struct efx_nic *efx)
net_dev->watchdog_timeo = 5 * HZ;
net_dev->irq = efx->pci_dev->irq;
net_dev->netdev_ops = &efx_netdev_ops;
if (efx_nic_rev(efx) >= EFX_REV_HUNT_A0)
if (efx_nic_rev(efx) >= EFX_REV_HUNT_A0) {
net_dev->netdev_ops = &efx_ef10_netdev_ops;
net_dev->priv_flags |= IFF_UNICAST_FLT;
} else {
net_dev->netdev_ops = &efx_farch_netdev_ops;
}
net_dev->ethtool_ops = &efx_ethtool_ops;
net_dev->gso_max_segs = EFX_TSO_MAX_SEGS;
@ -2417,8 +2435,7 @@ int efx_reset_up(struct efx_nic *efx, enum reset_type method, bool ok)
if (rc)
goto fail;
efx_restore_filters(efx);
if (efx->type->sriov_reset)
efx->type->sriov_reset(efx);
efx->type->sriov_reset(efx);
mutex_unlock(&efx->mac_lock);
@ -2811,9 +2828,7 @@ static void efx_pci_remove(struct pci_dev *pci_dev)
efx_disable_interrupts(efx);
rtnl_unlock();
if (efx->type->sriov_fini)
efx->type->sriov_fini(efx);
efx->type->sriov_fini(efx);
efx_unregister_netdev(efx);
efx_mtd_remove(efx);
@ -3010,12 +3025,10 @@ static int efx_pci_probe(struct pci_dev *pci_dev,
if (rc)
goto fail4;
if (efx->type->sriov_init) {
rc = efx->type->sriov_init(efx);
if (rc)
netif_err(efx, probe, efx->net_dev,
"SR-IOV can't be enabled rc %d\n", rc);
}
rc = efx->type->sriov_init(efx);
if (rc)
netif_err(efx, probe, efx->net_dev,
"SR-IOV can't be enabled rc %d\n", rc);
netif_dbg(efx, probe, efx->net_dev, "initialisation successful\n");
@ -3047,26 +3060,6 @@ static int efx_pci_probe(struct pci_dev *pci_dev,
return rc;
}
/* efx_pci_sriov_configure returns the actual number of Virtual Functions
* enabled on success
*/
#ifdef CONFIG_SFC_SRIOV
static int efx_pci_sriov_configure(struct pci_dev *dev, int num_vfs)
{
int rc;
struct efx_nic *efx = pci_get_drvdata(dev);
if (efx->type->sriov_configure) {
rc = efx->type->sriov_configure(efx, num_vfs);
if (rc)
return rc;
else
return num_vfs;
} else
return -ENOSYS;
}
#endif
static int efx_pm_freeze(struct device *dev)
{
struct efx_nic *efx = pci_get_drvdata(to_pci_dev(dev));
@ -3289,9 +3282,6 @@ static struct pci_driver efx_pci_driver = {
.remove = efx_pci_remove,
.driver.pm = &efx_pm_ops,
.err_handler = &efx_err_handlers,
#ifdef CONFIG_SFC_SRIOV
.sriov_configure = efx_pci_sriov_configure,
#endif
};
/**************************************************************************

7
drivers/net/ethernet/sfc/efx.h
View File

@ -220,13 +220,6 @@ static inline void efx_mtd_rename(struct efx_nic *efx) {}
static inline void efx_mtd_remove(struct efx_nic *efx) {}
#endif
#ifdef CONFIG_SFC_SRIOV
static inline unsigned int efx_vf_size(struct efx_nic *efx)
{
return 1 << efx->vi_scale;
}
#endif
static inline void efx_schedule_channel(struct efx_channel *channel)
{
netif_vdbg(channel->efx, intr, channel->efx->net_dev,

10
drivers/net/ethernet/sfc/falcon.c
View File

@ -2766,6 +2766,11 @@ const struct efx_nic_type falcon_a1_nic_type = {
.mtd_write = falcon_mtd_write,
.mtd_sync = falcon_mtd_sync,
#endif
.sriov_init = efx_falcon_sriov_init,
.sriov_fini = efx_falcon_sriov_fini,
.sriov_mac_address_changed = efx_falcon_sriov_mac_address_changed,
.sriov_wanted = efx_falcon_sriov_wanted,
.sriov_reset = efx_falcon_sriov_reset,
.revision = EFX_REV_FALCON_A1,
.txd_ptr_tbl_base = FR_AA_TX_DESC_PTR_TBL_KER,
@ -2862,6 +2867,11 @@ const struct efx_nic_type falcon_b0_nic_type = {
.mtd_write = falcon_mtd_write,
.mtd_sync = falcon_mtd_sync,
#endif
.sriov_init = efx_falcon_sriov_init,
.sriov_fini = efx_falcon_sriov_fini,
.sriov_mac_address_changed = efx_falcon_sriov_mac_address_changed,
.sriov_wanted = efx_falcon_sriov_wanted,
.sriov_reset = efx_falcon_sriov_reset,
.revision = EFX_REV_FALCON_B0,
.txd_ptr_tbl_base = FR_BZ_TX_DESC_PTR_TBL,

40
drivers/net/ethernet/sfc/farch.c
View File

@ -20,8 +20,6 @@
#include "efx.h"
#include "nic.h"
#include "farch_regs.h"
#include "sriov.h"
#include "siena_sriov.h"
#include "io.h"
#include "workarounds.h"
@ -1687,32 +1685,28 @@ void efx_farch_dimension_resources(struct efx_nic *efx, unsigned sram_lim_qw)
vi_count = max(efx->n_channels, efx->n_tx_channels * EFX_TXQ_TYPES);
#ifdef CONFIG_SFC_SRIOV
if (efx->type->sriov_wanted) {
if (efx->type->sriov_wanted(efx)) {
unsigned vi_dc_entries, buftbl_free;
unsigned entries_per_vf, vf_limit;
if (efx->type->sriov_wanted(efx)) {
unsigned vi_dc_entries, buftbl_free, entries_per_vf, vf_limit;
nic_data->vf_buftbl_base = buftbl_min;
nic_data->vf_buftbl_base = buftbl_min;
vi_dc_entries = RX_DC_ENTRIES + TX_DC_ENTRIES;
vi_count = max(vi_count, EFX_VI_BASE);
buftbl_free = (sram_lim_qw - buftbl_min -
vi_count * vi_dc_entries);
vi_dc_entries = RX_DC_ENTRIES + TX_DC_ENTRIES;
vi_count = max(vi_count, EFX_VI_BASE);
buftbl_free = (sram_lim_qw - buftbl_min -
vi_count * vi_dc_entries);
entries_per_vf = ((vi_dc_entries +
EFX_VF_BUFTBL_PER_VI) *
efx_vf_size(efx));
vf_limit = min(buftbl_free / entries_per_vf,
(1024U - EFX_VI_BASE) >> efx->vi_scale);
entries_per_vf = ((vi_dc_entries + EFX_VF_BUFTBL_PER_VI) *
efx_vf_size(efx));
vf_limit = min(buftbl_free / entries_per_vf,
(1024U - EFX_VI_BASE) >> efx->vi_scale);
if (efx->vf_count > vf_limit) {
netif_err(efx, probe, efx->net_dev,
"Reducing VF count from from %d to %d\n",
efx->vf_count, vf_limit);
efx->vf_count = vf_limit;
}
vi_count += efx->vf_count * efx_vf_size(efx);
if (efx->vf_count > vf_limit) {
netif_err(efx, probe, efx->net_dev,
"Reducing VF count from from %d to %d\n",
efx->vf_count, vf_limit);
efx->vf_count = vf_limit;
}
vi_count += efx->vf_count * efx_vf_size(efx);
}
#endif

4
drivers/net/ethernet/sfc/mcdi.c
View File

@ -1035,9 +1035,7 @@ void efx_mcdi_process_event(struct efx_channel *channel,
/* MAC stats are gather lazily. We can ignore this. */
break;
case MCDI_EVENT_CODE_FLR:
if (efx->type->sriov_flr)
efx->type->sriov_flr(efx,
MCDI_EVENT_FIELD(*event, FLR_VF));
efx_siena_sriov_flr(efx, MCDI_EVENT_FIELD(*event, FLR_VF));
break;
case MCDI_EVENT_CODE_PTP_RX:
case MCDI_EVENT_CODE_PTP_FAULT:

9
drivers/net/ethernet/sfc/net_driver.h
View File

@ -1330,20 +1330,11 @@ struct efx_nic_type {
int (*ptp_set_ts_sync_events)(struct efx_nic *efx, bool en, bool temp);
int (*ptp_set_ts_config)(struct efx_nic *efx,
struct hwtstamp_config *init);
int (*sriov_configure)(struct efx_nic *efx, int num_vfs);
int (*sriov_init)(struct efx_nic *efx);
void (*sriov_fini)(struct efx_nic *efx);
void (*sriov_mac_address_changed)(struct efx_nic *efx);
bool (*sriov_wanted)(struct efx_nic *efx);
void (*sriov_reset)(struct efx_nic *efx);
void (*sriov_flr)(struct efx_nic *efx, unsigned vf_i);
int (*sriov_set_vf_mac)(struct efx_nic *efx, int vf_i, u8 *mac);
int (*sriov_set_vf_vlan)(struct efx_nic *efx, int vf_i, u16 vlan,
u8 qos);
int (*sriov_set_vf_spoofchk)(struct efx_nic *efx, int vf_i,
bool spoofchk);
int (*sriov_get_vf_config)(struct efx_nic *efx, int vf_i,
struct ifla_vf_info *ivi);
int revision;
unsigned int txd_ptr_tbl_base;

111
drivers/net/ethernet/sfc/nic.h
View File

@ -509,9 +509,120 @@ struct efx_ef10_nic_data {
u32 datapath_caps;
};
/*
* On the SFC9000 family each port is associated with 1 PCI physical
* function (PF) handled by sfc and a configurable number of virtual
* functions (VFs) that may be handled by some other driver, often in
* a VM guest. The queue pointer registers are mapped in both PF and
* VF BARs such that an 8K region provides access to a single RX, TX
* and event queue (collectively a Virtual Interface, VI or VNIC).
*
* The PF has access to all 1024 VIs while VFs are mapped to VIs
* according to VI_BASE and VI_SCALE: VF i has access to VIs numbered
* in range [VI_BASE + i << VI_SCALE, VI_BASE + i + 1 << VI_SCALE).
* The number of VIs and the VI_SCALE value are configurable but must
* be established at boot time by firmware.
*/
/* Maximum VI_SCALE parameter supported by Siena */
#define EFX_VI_SCALE_MAX 6
/* Base VI to use for SR-IOV. Must be aligned to (1 << EFX_VI_SCALE_MAX),
* so this is the smallest allowed value. */
#define EFX_VI_BASE 128U
/* Maximum number of VFs allowed */
#define EFX_VF_COUNT_MAX 127
/* Limit EVQs on VFs to be only 8k to reduce buffer table reservation */
#define EFX_MAX_VF_EVQ_SIZE 8192UL
/* The number of buffer table entries reserved for each VI on a VF */
#define EFX_VF_BUFTBL_PER_VI \
((EFX_MAX_VF_EVQ_SIZE + 2 * EFX_MAX_DMAQ_SIZE) * \
sizeof(efx_qword_t) / EFX_BUF_SIZE)
#ifdef CONFIG_SFC_SRIOV
/* SIENA */
static inline bool efx_siena_sriov_wanted(struct efx_nic *efx)
{
return efx->vf_count != 0;
}
static inline bool efx_siena_sriov_enabled(struct efx_nic *efx)
{
return efx->vf_init_count != 0;
}
static inline unsigned int efx_vf_size(struct efx_nic *efx)
{
return 1 << efx->vi_scale;
}
int efx_init_sriov(void);
void efx_siena_sriov_probe(struct efx_nic *efx);
int efx_siena_sriov_init(struct efx_nic *efx);
void efx_siena_sriov_mac_address_changed(struct efx_nic *efx);
void efx_siena_sriov_tx_flush_done(struct efx_nic *efx, efx_qword_t *event);
void efx_siena_sriov_rx_flush_done(struct efx_nic *efx, efx_qword_t *event);
void efx_siena_sriov_event(struct efx_channel *channel, efx_qword_t *event);
void efx_siena_sriov_desc_fetch_err(struct efx_nic *efx, unsigned dmaq);
void efx_siena_sriov_flr(struct efx_nic *efx, unsigned flr);
void efx_siena_sriov_reset(struct efx_nic *efx);
void efx_siena_sriov_fini(struct efx_nic *efx);
void efx_fini_sriov(void);
/* EF10 */
static inline bool efx_ef10_sriov_wanted(struct efx_nic *efx) { return false; }
static inline int efx_ef10_sriov_init(struct efx_nic *efx) { return -EOPNOTSUPP; }
static inline void efx_ef10_sriov_mac_address_changed(struct efx_nic *efx) {}
static inline void efx_ef10_sriov_reset(struct efx_nic *efx) {}
static inline void efx_ef10_sriov_fini(struct efx_nic *efx) {}
#else
/* SIENA */
static inline bool efx_siena_sriov_wanted(struct efx_nic *efx) { return false; }
static inline bool efx_siena_sriov_enabled(struct efx_nic *efx) { return false; }
static inline unsigned int efx_vf_size(struct efx_nic *efx) { return 0; }
static inline int efx_init_sriov(void) { return 0; }
static inline void efx_siena_sriov_probe(struct efx_nic *efx) {}
static inline int efx_siena_sriov_init(struct efx_nic *efx) { return -EOPNOTSUPP; }
static inline void efx_siena_sriov_mac_address_changed(struct efx_nic *efx) {}
static inline void efx_siena_sriov_tx_flush_done(struct efx_nic *efx,
efx_qword_t *event) {}
static inline void efx_siena_sriov_rx_flush_done(struct efx_nic *efx,
efx_qword_t *event) {}
static inline void efx_siena_sriov_event(struct efx_channel *channel,
efx_qword_t *event) {}
static inline void efx_siena_sriov_desc_fetch_err(struct efx_nic *efx,
unsigned dmaq) {}
static inline void efx_siena_sriov_flr(struct efx_nic *efx, unsigned flr) {}
static inline void efx_siena_sriov_reset(struct efx_nic *efx) {}
static inline void efx_siena_sriov_fini(struct efx_nic *efx) {}
static inline void efx_fini_sriov(void) {}
/* EF10 */
static inline bool efx_ef10_sriov_wanted(struct efx_nic *efx) { return false; }
static inline int efx_ef10_sriov_init(struct efx_nic *efx) { return -EOPNOTSUPP; }
static inline void efx_ef10_sriov_mac_address_changed(struct efx_nic *efx) {}
static inline void efx_ef10_sriov_reset(struct efx_nic *efx) {}
static inline void efx_ef10_sriov_fini(struct efx_nic *efx) {}
#endif
/* FALCON */
static inline bool efx_falcon_sriov_wanted(struct efx_nic *efx) { return false; }
static inline int efx_falcon_sriov_init(struct efx_nic *efx) { return -EOPNOTSUPP; }
static inline void efx_falcon_sriov_mac_address_changed(struct efx_nic *efx) {}
static inline void efx_falcon_sriov_reset(struct efx_nic *efx) {}
static inline void efx_falcon_sriov_fini(struct efx_nic *efx) {}
int efx_siena_sriov_set_vf_mac(struct net_device *dev, int vf, u8 *mac);
int efx_siena_sriov_set_vf_vlan(struct net_device *dev, int vf,
u16 vlan, u8 qos);
int efx_siena_sriov_get_vf_config(struct net_device *dev, int vf,
struct ifla_vf_info *ivf);
int efx_siena_sriov_set_vf_spoofchk(struct net_device *net_dev, int vf,
bool spoofchk);
struct ethtool_ts_info;
int efx_ptp_probe(struct efx_nic *efx, struct efx_channel *channel);
void efx_ptp_defer_probe_with_channel(struct efx_nic *efx);

7
drivers/net/ethernet/sfc/siena.c
View File

@ -25,7 +25,6 @@
#include "mcdi.h"
#include "mcdi_pcol.h"
#include "selftest.h"
#include "siena_sriov.h"
/* Hardware control for SFC9000 family including SFL9021 (aka Siena). */
@ -998,17 +997,11 @@ const struct efx_nic_type siena_a0_nic_type = {
#endif
.ptp_write_host_time = siena_ptp_write_host_time,
.ptp_set_ts_config = siena_ptp_set_ts_config,
.sriov_configure = efx_siena_sriov_configure,
.sriov_init = efx_siena_sriov_init,
.sriov_fini = efx_siena_sriov_fini,
.sriov_mac_address_changed = efx_siena_sriov_mac_address_changed,
.sriov_wanted = efx_siena_sriov_wanted,
.sriov_reset = efx_siena_sriov_reset,
.sriov_flr = efx_siena_sriov_flr,
.sriov_set_vf_mac = efx_siena_sriov_set_vf_mac,
.sriov_set_vf_vlan = efx_siena_sriov_set_vf_vlan,
.sriov_set_vf_spoofchk = efx_siena_sriov_set_vf_spoofchk,
.sriov_get_vf_config = efx_siena_sriov_get_vf_config,
.revision = EFX_REV_SIENA_A0,
.txd_ptr_tbl_base = FR_BZ_TX_DESC_PTR_TBL,

58
drivers/net/ethernet/sfc/siena_sriov.c
View File

@ -16,7 +16,6 @@
#include "filter.h"
#include "mcdi_pcol.h"
#include "farch_regs.h"
#include "siena_sriov.h"
#include "vfdi.h"
/* Number of longs required to track all the VIs in a VF */
@ -1051,7 +1050,6 @@ static const struct efx_channel_type efx_siena_sriov_channel_type = {
void efx_siena_sriov_probe(struct efx_nic *efx)
{
#ifdef CONFIG_SFC_SRIOV
unsigned count;
if (!max_vfs)
@ -1066,10 +1064,8 @@ void efx_siena_sriov_probe(struct efx_nic *efx)
efx->vf_count = count;
efx->extra_channel_type[EFX_EXTRA_CHANNEL_IOV] = &efx_siena_sriov_channel_type;
#endif
}
#ifdef CONFIG_SFC_SRIOV
/* Copy the list of individual addresses into the vfdi_status.peers
* array and auxiliary pages, protected by %local_lock. Drop that lock
* and then broadcast the address list to every VF.
@ -1280,11 +1276,9 @@ fail:
efx_siena_sriov_vfs_fini(efx);
return rc;
}
#endif
int efx_siena_sriov_init(struct efx_nic *efx)
{
#ifdef CONFIG_SFC_SRIOV
struct net_device *net_dev = efx->net_dev;
struct siena_nic_data *nic_data = efx->nic_data;
struct vfdi_status *vfdi_status;
@ -1363,14 +1357,10 @@ fail_status:
efx_siena_sriov_cmd(efx, false, NULL, NULL);
fail_cmd:
return rc;
#else /* CONFIG_SFC_SRIOV */
return -EOPNOTSUPP;
#endif
}
void efx_siena_sriov_fini(struct efx_nic *efx)
{
#ifdef CONFIG_SFC_SRIOV
struct efx_vf *vf;
unsigned int pos;
struct siena_nic_data *nic_data = efx->nic_data;
@ -1401,12 +1391,10 @@ void efx_siena_sriov_fini(struct efx_nic *efx)
kfree(efx->vf);
efx_nic_free_buffer(efx, &nic_data->vfdi_status);
efx_siena_sriov_cmd(efx, false, NULL, NULL);
#endif /* CONFIG_SFC_SRIOV*/
}
void efx_siena_sriov_event(struct efx_channel *channel, efx_qword_t *event)
{
#ifdef CONFIG_SFC_SRIOV
struct efx_nic *efx = channel->efx;
struct efx_vf *vf;
unsigned qid, seq, type, data;
@ -1460,12 +1448,10 @@ error:
/* Reset the request and sequence number */
vf->req_type = VFDI_EV_TYPE_REQ_WORD0;
vf->req_seqno = seq + 1;
#endif /* CONFIG_SFC_SRIOV */
}
void efx_siena_sriov_flr(struct efx_nic *efx, unsigned vf_i)
{
#ifdef CONFIG_SFC_SRIOV
struct efx_vf *vf;
if (vf_i > efx->vf_init_count)
@ -1479,12 +1465,10 @@ void efx_siena_sriov_flr(struct efx_nic *efx, unsigned vf_i)
efx_vfdi_flush_clear(vf);
vf->evq0_count = 0;
#endif /* CONFIG_SFC_SRIOV */
}
void efx_siena_sriov_mac_address_changed(struct efx_nic *efx)
{
#ifdef CONFIG_SFC_SRIOV
struct siena_nic_data *nic_data = efx->nic_data;
struct vfdi_status *vfdi_status = nic_data->vfdi_status.addr;
@ -1493,12 +1477,10 @@ void efx_siena_sriov_mac_address_changed(struct efx_nic *efx)
ether_addr_copy(vfdi_status->peers[0].mac_addr,
efx->net_dev->dev_addr);
queue_work(vfdi_workqueue, &nic_data->peer_work);
#endif /* CONFIG_SFC_SRIOV */
}
void efx_siena_sriov_tx_flush_done(struct efx_nic *efx, efx_qword_t *event)
{
#ifdef CONFIG_SFC_SRIOV
struct efx_vf *vf;
unsigned queue, qid;
@ -1514,12 +1496,10 @@ void efx_siena_sriov_tx_flush_done(struct efx_nic *efx, efx_qword_t *event)
if (efx_vfdi_flush_wake(vf))
wake_up(&vf->flush_waitq);
#endif /* CONFIG_SFC_SRIOV */
}
void efx_siena_sriov_rx_flush_done(struct efx_nic *efx, efx_qword_t *event)
{
#ifdef CONFIG_SFC_SRIOV
struct efx_vf *vf;
unsigned ev_failed, queue, qid;
@ -1540,13 +1520,11 @@ void efx_siena_sriov_rx_flush_done(struct efx_nic *efx, efx_qword_t *event)
}
if (efx_vfdi_flush_wake(vf))
wake_up(&vf->flush_waitq);
#endif /* CONFIG_SFC_SRIOV */
}
/* Called from napi. Schedule the reset work item */
void efx_siena_sriov_desc_fetch_err(struct efx_nic *efx, unsigned dmaq)
{
#ifdef CONFIG_SFC_SRIOV
struct efx_vf *vf;
unsigned int rel;
@ -1558,13 +1536,11 @@ void efx_siena_sriov_desc_fetch_err(struct efx_nic *efx, unsigned dmaq)
"VF %d DMA Q %d reports descriptor fetch error.\n",
vf->index, rel);
queue_work(vfdi_workqueue, &vf->reset_work);
#endif /* CONFIG_SFC_SRIOV */
}
/* Reset all VFs */
void efx_siena_sriov_reset(struct efx_nic *efx)
{
#ifdef CONFIG_SFC_SRIOV
unsigned int vf_i;
struct efx_buffer buf;
struct efx_vf *vf;
@ -1586,12 +1562,10 @@ void efx_siena_sriov_reset(struct efx_nic *efx)
}
efx_nic_free_buffer(efx, &buf);
#endif /* CONFIG_SFC_SRIOV */
}
int efx_init_sriov(void)
{
#ifdef CONFIG_SFC_SRIOV
/* A single threaded workqueue is sufficient. efx_siena_sriov_vfdi() and
* efx_siena_sriov_peer_work() spend almost all their time sleeping for
* MCDI to complete anyway
@ -1599,20 +1573,18 @@ int efx_init_sriov(void)
vfdi_workqueue = create_singlethread_workqueue("sfc_vfdi");
if (!vfdi_workqueue)
return -ENOMEM;
#endif
return 0;
}
void efx_fini_sriov(void)
{
#ifdef CONFIG_SFC_SRIOV
destroy_workqueue(vfdi_workqueue);
#endif
}
#ifdef CONFIG_SFC_SRIOV
int efx_siena_sriov_set_vf_mac(struct efx_nic *efx, int vf_i, u8 *mac)
int efx_siena_sriov_set_vf_mac(struct net_device *net_dev, int vf_i, u8 *mac)
{
struct efx_nic *efx = netdev_priv(net_dev);
struct efx_vf *vf;
if (vf_i >= efx->vf_init_count)
@ -1627,9 +1599,10 @@ int efx_siena_sriov_set_vf_mac(struct efx_nic *efx, int vf_i, u8 *mac)
return 0;
}
int efx_siena_sriov_set_vf_vlan(struct efx_nic *efx, int vf_i,
int efx_siena_sriov_set_vf_vlan(struct net_device *net_dev, int vf_i,
u16 vlan, u8 qos)
{
struct efx_nic *efx = netdev_priv(net_dev);
struct efx_vf *vf;
u16 tci;
@ -1646,9 +1619,10 @@ int efx_siena_sriov_set_vf_vlan(struct efx_nic *efx, int vf_i,
return 0;
}
int efx_siena_sriov_set_vf_spoofchk(struct efx_nic *efx, int vf_i,
int efx_siena_sriov_set_vf_spoofchk(struct net_device *net_dev, int vf_i,
bool spoofchk)
{
struct efx_nic *efx = netdev_priv(net_dev);
struct efx_vf *vf;
int rc;
@ -1669,9 +1643,10 @@ int efx_siena_sriov_set_vf_spoofchk(struct efx_nic *efx, int vf_i,
return rc;
}
int efx_siena_sriov_get_vf_config(struct efx_nic *efx, int vf_i,
int efx_siena_sriov_get_vf_config(struct net_device *net_dev, int vf_i,
struct ifla_vf_info *ivi)
{
struct efx_nic *efx = netdev_priv(net_dev);
struct efx_vf *vf;
u16 tci;
@ -1691,18 +1666,3 @@ int efx_siena_sriov_get_vf_config(struct efx_nic *efx, int vf_i,
return 0;
}
#endif /* CONFIG_SFC_SRIOV */
bool efx_siena_sriov_wanted(struct efx_nic *efx)
{
#ifdef CONFIG_SFC_SRIOV
return efx->vf_count != 0;
#else
return false;
#endif
}
int efx_siena_sriov_configure(struct efx_nic *efx, int num_vfs)
{
return 0;
}

79
drivers/net/ethernet/sfc/siena_sriov.h
View File

@ -1,79 +0,0 @@
/****************************************************************************
* 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.
*/
#ifndef SIENA_SRIOV_H
#define SIENA_SRIOV_H
#include "net_driver.h"
/* On the SFC9000 family each port is associated with 1 PCI physical
* function (PF) handled by sfc and a configurable number of virtual
* functions (VFs) that may be handled by some other driver, often in
* a VM guest. The queue pointer registers are mapped in both PF and
* VF BARs such that an 8K region provides access to a single RX, TX
* and event queue (collectively a Virtual Interface, VI or VNIC).
*
* The PF has access to all 1024 VIs while VFs are mapped to VIs
* according to VI_BASE and VI_SCALE: VF i has access to VIs numbered
* in range [VI_BASE + i << VI_SCALE, VI_BASE + i + 1 << VI_SCALE).
* The number of VIs and the VI_SCALE value are configurable but must
* be established at boot time by firmware.
*/
/* Maximum VI_SCALE parameter supported by Siena */
#define EFX_VI_SCALE_MAX 6
/* Base VI to use for SR-IOV. Must be aligned to (1 << EFX_VI_SCALE_MAX),
* so this is the smallest allowed value.
*/
#define EFX_VI_BASE 128U
/* Maximum number of VFs allowed */
#define EFX_VF_COUNT_MAX 127
/* Limit EVQs on VFs to be only 8k to reduce buffer table reservation */
#define EFX_MAX_VF_EVQ_SIZE 8192UL
/* The number of buffer table entries reserved for each VI on a VF */
#define EFX_VF_BUFTBL_PER_VI \
((EFX_MAX_VF_EVQ_SIZE + 2 * EFX_MAX_DMAQ_SIZE) * \
sizeof(efx_qword_t) / EFX_BUF_SIZE)
int efx_siena_sriov_configure(struct efx_nic *efx, int num_vfs);
int efx_siena_sriov_init(struct efx_nic *efx);
void efx_siena_sriov_fini(struct efx_nic *efx);
void efx_siena_sriov_mac_address_changed(struct efx_nic *efx);
bool efx_siena_sriov_wanted(struct efx_nic *efx);
void efx_siena_sriov_reset(struct efx_nic *efx);
void efx_siena_sriov_flr(struct efx_nic *efx, unsigned flr);
#ifdef CONFIG_SFC_SRIOV
int efx_siena_sriov_set_vf_mac(struct efx_nic *efx, int vf, u8 *mac);
int efx_siena_sriov_set_vf_vlan(struct efx_nic *efx, int vf,
u16 vlan, u8 qos);
int efx_siena_sriov_set_vf_spoofchk(struct efx_nic *efx, int vf,
bool spoofchk);
int efx_siena_sriov_get_vf_config(struct efx_nic *efx, int vf,
struct ifla_vf_info *ivf);
static inline bool efx_siena_sriov_enabled(struct efx_nic *efx)
{
return efx->vf_init_count != 0;
}
#else /* !CONFIG_SFC_SRIOV */
static inline bool efx_siena_sriov_enabled(struct efx_nic *efx)
{
return false;
}
#endif /* CONFIG_SFC_SRIOV */
void efx_siena_sriov_probe(struct efx_nic *efx);
void efx_siena_sriov_tx_flush_done(struct efx_nic *efx, efx_qword_t *event);
void efx_siena_sriov_rx_flush_done(struct efx_nic *efx, efx_qword_t *event);
void efx_siena_sriov_event(struct efx_channel *channel, efx_qword_t *event);
void efx_siena_sriov_desc_fetch_err(struct efx_nic *efx, unsigned dmaq);
#endif /* SIENA_SRIOV_H */

64
drivers/net/ethernet/sfc/sriov.c
View File

@ -1,64 +0,0 @@
/****************************************************************************
* Driver for Solarflare network controllers and boards
* Copyright 2014-2015 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/module.h>
#include "net_driver.h"
#include "nic.h"
#include "sriov.h"
#ifdef CONFIG_SFC_SRIOV
int efx_sriov_set_vf_mac(struct net_device *net_dev, int vf_i, u8 *mac)
{
struct efx_nic *efx = netdev_priv(net_dev);
if (efx->type->sriov_set_vf_mac)
return efx->type->sriov_set_vf_mac(efx, vf_i, mac);
else
return -EOPNOTSUPP;
}
int efx_sriov_set_vf_vlan(struct net_device *net_dev, int vf_i, u16 vlan,
u8 qos)
{
struct efx_nic *efx = netdev_priv(net_dev);
if (efx->type->sriov_set_vf_vlan) {
if ((vlan & ~VLAN_VID_MASK) ||
(qos & ~(VLAN_PRIO_MASK >> VLAN_PRIO_SHIFT)))
return -EINVAL;
return efx->type->sriov_set_vf_vlan(efx, vf_i, vlan, qos);
} else {
return -EOPNOTSUPP;
}
}
int efx_sriov_set_vf_spoofchk(struct net_device *net_dev, int vf_i,
bool spoofchk)
{
struct efx_nic *efx = netdev_priv(net_dev);
if (efx->type->sriov_set_vf_spoofchk)
return efx->type->sriov_set_vf_spoofchk(efx, vf_i, spoofchk);
else
return -EOPNOTSUPP;
}
int efx_sriov_get_vf_config(struct net_device *net_dev, int vf_i,
struct ifla_vf_info *ivi)
{
struct efx_nic *efx = netdev_priv(net_dev);
if (efx->type->sriov_get_vf_config)
return efx->type->sriov_get_vf_config(efx, vf_i, ivi);
else
return -EOPNOTSUPP;
}
#endif

27
drivers/net/ethernet/sfc/sriov.h
View File

@ -1,27 +0,0 @@
/****************************************************************************
* Driver for Solarflare network controllers and boards
* Copyright 2014-2015 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.
*/
#ifndef EFX_SRIOV_H
#define EFX_SRIOV_H
#include "net_driver.h"
#ifdef CONFIG_SFC_SRIOV
int efx_sriov_set_vf_mac(struct net_device *net_dev, int vf_i, u8 *mac);
int efx_sriov_set_vf_vlan(struct net_device *net_dev, int vf_i, u16 vlan,
u8 qos);
int efx_sriov_set_vf_spoofchk(struct net_device *net_dev, int vf_i,
bool spoofchk);
int efx_sriov_get_vf_config(struct net_device *net_dev, int vf_i,
struct ifla_vf_info *ivi);
#endif /* CONFIG_SFC_SRIOV */
#endif /* EFX_SRIOV_H */