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Merge branch 'fs_enet-opt' 

Christophe Leroy says:

====================
Optimisation of fs_enet ethernet driver

This set optimises the freescale fs_enet ethernet driver:
1/ Merge of RX and TX NAPI functions in order to limit the amount of
interrupts
2/ Do not unmap DMA when packets len is below copybreak, otherwise there
is no benefit in copying the skb instead of allocating a new one
3/ Make copybreak value configurable as the optimised value is not the
same on all targets
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2016-09-10 21:17:14 -07:00
parent d1ba24feb4 b0ba357bfb
commit 34c1b089d9
5 changed files with 223 additions and 314 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

350
drivers/net/ethernet/freescale/fs_enet/fs_enet-main.c
View File

@ -60,6 +60,9 @@ module_param(fs_enet_debug, int, 0);
MODULE_PARM_DESC(fs_enet_debug,
"Freescale bitmapped debugging message enable value");
#define RX_RING_SIZE 32
#define TX_RING_SIZE 64
#ifdef CONFIG_NET_POLL_CONTROLLER
static void fs_enet_netpoll(struct net_device *dev);
#endif
@ -79,8 +82,8 @@ static void skb_align(struct sk_buff *skb, int align)
skb_reserve(skb, align - off);
}
/* NAPI receive function */
static int fs_enet_rx_napi(struct napi_struct *napi, int budget)
/* NAPI function */
static int fs_enet_napi(struct napi_struct *napi, int budget)
{
struct fs_enet_private *fep = container_of(napi, struct fs_enet_private, napi);
struct net_device *dev = fep->ndev;
@ -90,147 +93,17 @@ static int fs_enet_rx_napi(struct napi_struct *napi, int budget)
int received = 0;
u16 pkt_len, sc;
int curidx;
if (budget <= 0)
return received;
/*
* First, grab all of the stats for the incoming packet.
* These get messed up if we get called due to a busy condition.
*/
bdp = fep->cur_rx;
/* clear RX status bits for napi*/
(*fep->ops->napi_clear_rx_event)(dev);
while (((sc = CBDR_SC(bdp)) & BD_ENET_RX_EMPTY) == 0) {
curidx = bdp - fep->rx_bd_base;
/*
* Since we have allocated space to hold a complete frame,
* the last indicator should be set.
*/
if ((sc & BD_ENET_RX_LAST) == 0)
dev_warn(fep->dev, "rcv is not +last\n");
/*
* Check for errors.
*/
if (sc & (BD_ENET_RX_LG | BD_ENET_RX_SH | BD_ENET_RX_CL |
BD_ENET_RX_NO | BD_ENET_RX_CR | BD_ENET_RX_OV)) {
fep->stats.rx_errors++;
/* Frame too long or too short. */
if (sc & (BD_ENET_RX_LG | BD_ENET_RX_SH))
fep->stats.rx_length_errors++;
/* Frame alignment */
if (sc & (BD_ENET_RX_NO | BD_ENET_RX_CL))
fep->stats.rx_frame_errors++;
/* CRC Error */
if (sc & BD_ENET_RX_CR)
fep->stats.rx_crc_errors++;
/* FIFO overrun */
if (sc & BD_ENET_RX_OV)
fep->stats.rx_crc_errors++;
skb = fep->rx_skbuff[curidx];
dma_unmap_single(fep->dev, CBDR_BUFADDR(bdp),
L1_CACHE_ALIGN(PKT_MAXBUF_SIZE),
DMA_FROM_DEVICE);
skbn = skb;
} else {
skb = fep->rx_skbuff[curidx];
dma_unmap_single(fep->dev, CBDR_BUFADDR(bdp),
L1_CACHE_ALIGN(PKT_MAXBUF_SIZE),
DMA_FROM_DEVICE);
/*
* Process the incoming frame.
*/
fep->stats.rx_packets++;
pkt_len = CBDR_DATLEN(bdp) - 4; /* remove CRC */
fep->stats.rx_bytes += pkt_len + 4;
if (pkt_len <= fpi->rx_copybreak) {
/* +2 to make IP header L1 cache aligned */
skbn = netdev_alloc_skb(dev, pkt_len + 2);
if (skbn != NULL) {
skb_reserve(skbn, 2); /* align IP header */
skb_copy_from_linear_data(skb,
skbn->data, pkt_len);
swap(skb, skbn);
}
} else {
skbn = netdev_alloc_skb(dev, ENET_RX_FRSIZE);
if (skbn)
skb_align(skbn, ENET_RX_ALIGN);
}
if (skbn != NULL) {
skb_put(skb, pkt_len); /* Make room */
skb->protocol = eth_type_trans(skb, dev);
received++;
netif_receive_skb(skb);
} else {
fep->stats.rx_dropped++;
skbn = skb;
}
}
fep->rx_skbuff[curidx] = skbn;
CBDW_BUFADDR(bdp, dma_map_single(fep->dev, skbn->data,
L1_CACHE_ALIGN(PKT_MAXBUF_SIZE),
DMA_FROM_DEVICE));
CBDW_DATLEN(bdp, 0);
CBDW_SC(bdp, (sc & ~BD_ENET_RX_STATS) | BD_ENET_RX_EMPTY);
/*
* Update BD pointer to next entry.
*/
if ((sc & BD_ENET_RX_WRAP) == 0)
bdp++;
else
bdp = fep->rx_bd_base;
(*fep->ops->rx_bd_done)(dev);
if (received >= budget)
break;
}
fep->cur_rx = bdp;
if (received < budget) {
/* done */
napi_complete(napi);
(*fep->ops->napi_enable_rx)(dev);
}
return received;
}
static int fs_enet_tx_napi(struct napi_struct *napi, int budget)
{
struct fs_enet_private *fep = container_of(napi, struct fs_enet_private,
napi_tx);
struct net_device *dev = fep->ndev;
cbd_t __iomem *bdp;
struct sk_buff *skb;
int dirtyidx, do_wake, do_restart;
u16 sc;
int has_tx_work = 0;
int tx_left = TX_RING_SIZE;
spin_lock(&fep->tx_lock);
bdp = fep->dirty_tx;
/* clear TX status bits for napi*/
(*fep->ops->napi_clear_tx_event)(dev);
/* clear status bits for napi*/
(*fep->ops->napi_clear_event)(dev);
do_wake = do_restart = 0;
while (((sc = CBDR_SC(bdp)) & BD_ENET_TX_READY) == 0) {
while (((sc = CBDR_SC(bdp)) & BD_ENET_TX_READY) == 0 && tx_left) {
dirtyidx = bdp - fep->tx_bd_base;
if (fep->tx_free == fep->tx_ring)
@ -302,9 +175,9 @@ static int fs_enet_tx_napi(struct napi_struct *napi, int budget)
* Since we have freed up a buffer, the ring is no longer
* full.
*/
if (++fep->tx_free >= MAX_SKB_FRAGS)
if (++fep->tx_free == MAX_SKB_FRAGS)
do_wake = 1;
has_tx_work = 1;
tx_left--;
}
fep->dirty_tx = bdp;
@ -312,19 +185,129 @@ static int fs_enet_tx_napi(struct napi_struct *napi, int budget)
if (do_restart)
(*fep->ops->tx_restart)(dev);
if (!has_tx_work) {
napi_complete(napi);
(*fep->ops->napi_enable_tx)(dev);
}
spin_unlock(&fep->tx_lock);
if (do_wake)
netif_wake_queue(dev);
if (has_tx_work)
return budget;
return 0;
/*
* First, grab all of the stats for the incoming packet.
* These get messed up if we get called due to a busy condition.
*/
bdp = fep->cur_rx;
while (((sc = CBDR_SC(bdp)) & BD_ENET_RX_EMPTY) == 0 &&
received < budget) {
curidx = bdp - fep->rx_bd_base;
/*
* Since we have allocated space to hold a complete frame,
* the last indicator should be set.
*/
if ((sc & BD_ENET_RX_LAST) == 0)
dev_warn(fep->dev, "rcv is not +last\n");
/*
* Check for errors.
*/
if (sc & (BD_ENET_RX_LG | BD_ENET_RX_SH | BD_ENET_RX_CL |
BD_ENET_RX_NO | BD_ENET_RX_CR | BD_ENET_RX_OV)) {
fep->stats.rx_errors++;
/* Frame too long or too short. */
if (sc & (BD_ENET_RX_LG | BD_ENET_RX_SH))
fep->stats.rx_length_errors++;
/* Frame alignment */
if (sc & (BD_ENET_RX_NO | BD_ENET_RX_CL))
fep->stats.rx_frame_errors++;
/* CRC Error */
if (sc & BD_ENET_RX_CR)
fep->stats.rx_crc_errors++;
/* FIFO overrun */
if (sc & BD_ENET_RX_OV)
fep->stats.rx_crc_errors++;
skbn = fep->rx_skbuff[curidx];
} else {
skb = fep->rx_skbuff[curidx];
/*
* Process the incoming frame.
*/
fep->stats.rx_packets++;
pkt_len = CBDR_DATLEN(bdp) - 4; /* remove CRC */
fep->stats.rx_bytes += pkt_len + 4;
if (pkt_len <= fpi->rx_copybreak) {
/* +2 to make IP header L1 cache aligned */
skbn = netdev_alloc_skb(dev, pkt_len + 2);
if (skbn != NULL) {
skb_reserve(skbn, 2); /* align IP header */
skb_copy_from_linear_data(skb,
skbn->data, pkt_len);
swap(skb, skbn);
dma_sync_single_for_cpu(fep->dev,
CBDR_BUFADDR(bdp),
L1_CACHE_ALIGN(pkt_len),
DMA_FROM_DEVICE);
}
} else {
skbn = netdev_alloc_skb(dev, ENET_RX_FRSIZE);
if (skbn) {
dma_addr_t dma;
skb_align(skbn, ENET_RX_ALIGN);
dma_unmap_single(fep->dev,
CBDR_BUFADDR(bdp),
L1_CACHE_ALIGN(PKT_MAXBUF_SIZE),
DMA_FROM_DEVICE);
dma = dma_map_single(fep->dev,
skbn->data,
L1_CACHE_ALIGN(PKT_MAXBUF_SIZE),
DMA_FROM_DEVICE);
CBDW_BUFADDR(bdp, dma);
}
}
if (skbn != NULL) {
skb_put(skb, pkt_len); /* Make room */
skb->protocol = eth_type_trans(skb, dev);
received++;
netif_receive_skb(skb);
} else {
fep->stats.rx_dropped++;
skbn = skb;
}
}
fep->rx_skbuff[curidx] = skbn;
CBDW_DATLEN(bdp, 0);
CBDW_SC(bdp, (sc & ~BD_ENET_RX_STATS) | BD_ENET_RX_EMPTY);
/*
* Update BD pointer to next entry.
*/
if ((sc & BD_ENET_RX_WRAP) == 0)
bdp++;
else
bdp = fep->rx_bd_base;
(*fep->ops->rx_bd_done)(dev);
}
fep->cur_rx = bdp;
if (received < budget && tx_left) {
/* done */
napi_complete(napi);
(*fep->ops->napi_enable)(dev);
return received;
}
return budget;
}
/*
@ -350,18 +333,18 @@ fs_enet_interrupt(int irq, void *dev_id)
nr++;
int_clr_events = int_events;
int_clr_events &= ~fep->ev_napi_rx;
int_clr_events &= ~fep->ev_napi;
(*fep->ops->clear_int_events)(dev, int_clr_events);
if (int_events & fep->ev_err)
(*fep->ops->ev_error)(dev, int_events);
if (int_events & fep->ev_rx) {
if (int_events & fep->ev) {
napi_ok = napi_schedule_prep(&fep->napi);
(*fep->ops->napi_disable_rx)(dev);
(*fep->ops->clear_int_events)(dev, fep->ev_napi_rx);
(*fep->ops->napi_disable)(dev);
(*fep->ops->clear_int_events)(dev, fep->ev_napi);
/* NOTE: it is possible for FCCs in NAPI mode */
/* to submit a spurious interrupt while in poll */
@ -369,17 +352,6 @@ fs_enet_interrupt(int irq, void *dev_id)
__napi_schedule(&fep->napi);
}
if (int_events & fep->ev_tx) {
napi_ok = napi_schedule_prep(&fep->napi_tx);
(*fep->ops->napi_disable_tx)(dev);
(*fep->ops->clear_int_events)(dev, fep->ev_napi_tx);
/* NOTE: it is possible for FCCs in NAPI mode */
/* to submit a spurious interrupt while in poll */
if (napi_ok)
__napi_schedule(&fep->napi_tx);
}
}
handled = nr > 0;
@ -659,7 +631,8 @@ static void fs_timeout(struct net_device *dev)
}
phy_start(dev->phydev);
wake = fep->tx_free && !(CBDR_SC(fep->cur_tx) & BD_ENET_TX_READY);
wake = fep->tx_free >= MAX_SKB_FRAGS &&
!(CBDR_SC(fep->cur_tx) & BD_ENET_TX_READY);
spin_unlock_irqrestore(&fep->lock, flags);
if (wake)
@ -751,11 +724,10 @@ static int fs_enet_open(struct net_device *dev)
int err;
/* to initialize the fep->cur_rx,... */
/* not doing this, will cause a crash in fs_enet_rx_napi */
/* not doing this, will cause a crash in fs_enet_napi */
fs_init_bds(fep->ndev);
napi_enable(&fep->napi);
napi_enable(&fep->napi_tx);
/* Install our interrupt handler. */
r = request_irq(fep->interrupt, fs_enet_interrupt, IRQF_SHARED,
@ -763,7 +735,6 @@ static int fs_enet_open(struct net_device *dev)
if (r != 0) {
dev_err(fep->dev, "Could not allocate FS_ENET IRQ!");
napi_disable(&fep->napi);
napi_disable(&fep->napi_tx);
return -EINVAL;
}
@ -771,7 +742,6 @@ static int fs_enet_open(struct net_device *dev)
if (err) {
free_irq(fep->interrupt, dev);
napi_disable(&fep->napi);
napi_disable(&fep->napi_tx);
return err;
}
phy_start(dev->phydev);
@ -789,7 +759,6 @@ static int fs_enet_close(struct net_device *dev)
netif_stop_queue(dev);
netif_carrier_off(dev);
napi_disable(&fep->napi);
napi_disable(&fep->napi_tx);
phy_stop(dev->phydev);
spin_lock_irqsave(&fep->lock, flags);
@ -861,6 +830,44 @@ static void fs_set_msglevel(struct net_device *dev, u32 value)
fep->msg_enable = value;
}
static int fs_get_tunable(struct net_device *dev,
const struct ethtool_tunable *tuna, void *data)
{
struct fs_enet_private *fep = netdev_priv(dev);
struct fs_platform_info *fpi = fep->fpi;
int ret = 0;
switch (tuna->id) {
case ETHTOOL_RX_COPYBREAK:
*(u32 *)data = fpi->rx_copybreak;
break;
default:
ret = -EINVAL;
break;
}
return ret;
}
static int fs_set_tunable(struct net_device *dev,
const struct ethtool_tunable *tuna, const void *data)
{
struct fs_enet_private *fep = netdev_priv(dev);
struct fs_platform_info *fpi = fep->fpi;
int ret = 0;
switch (tuna->id) {
case ETHTOOL_RX_COPYBREAK:
fpi->rx_copybreak = *(u32 *)data;
break;
default:
ret = -EINVAL;
break;
}
return ret;
}
static const struct ethtool_ops fs_ethtool_ops = {
.get_drvinfo = fs_get_drvinfo,
.get_regs_len = fs_get_regs_len,
@ -872,6 +879,8 @@ static const struct ethtool_ops fs_ethtool_ops = {
.get_ts_info = ethtool_op_get_ts_info,
.get_link_ksettings = phy_ethtool_get_link_ksettings,
.set_link_ksettings = phy_ethtool_set_link_ksettings,
.get_tunable = fs_get_tunable,
.set_tunable = fs_set_tunable,
};
static int fs_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
@ -939,8 +948,8 @@ static int fs_enet_probe(struct platform_device *ofdev)
fpi->cp_command = *data;
}
fpi->rx_ring = 32;
fpi->tx_ring = 64;
fpi->rx_ring = RX_RING_SIZE;
fpi->tx_ring = TX_RING_SIZE;
fpi->rx_copybreak = 240;
fpi->napi_weight = 17;
fpi->phy_node = of_parse_phandle(ofdev->dev.of_node, "phy-handle", 0);
@ -1024,8 +1033,7 @@ static int fs_enet_probe(struct platform_device *ofdev)
ndev->netdev_ops = &fs_enet_netdev_ops;
ndev->watchdog_timeo = 2 * HZ;
netif_napi_add(ndev, &fep->napi, fs_enet_rx_napi, fpi->napi_weight);
netif_tx_napi_add(ndev, &fep->napi_tx, fs_enet_tx_napi, 2);
netif_napi_add(ndev, &fep->napi, fs_enet_napi, fpi->napi_weight);
ndev->ethtool_ops = &fs_ethtool_ops;

16
drivers/net/ethernet/freescale/fs_enet/fs_enet.h
View File

@ -81,12 +81,9 @@ struct fs_ops {
void (*adjust_link)(struct net_device *dev);
void (*restart)(struct net_device *dev);
void (*stop)(struct net_device *dev);
void (*napi_clear_rx_event)(struct net_device *dev);
void (*napi_enable_rx)(struct net_device *dev);
void (*napi_disable_rx)(struct net_device *dev);
void (*napi_clear_tx_event)(struct net_device *dev);
void (*napi_enable_tx)(struct net_device *dev);
void (*napi_disable_tx)(struct net_device *dev);
void (*napi_clear_event)(struct net_device *dev);
void (*napi_enable)(struct net_device *dev);
void (*napi_disable)(struct net_device *dev);
void (*rx_bd_done)(struct net_device *dev);
void (*tx_kickstart)(struct net_device *dev);
u32 (*get_int_events)(struct net_device *dev);
@ -122,7 +119,6 @@ struct phy_info {
struct fs_enet_private {
struct napi_struct napi;
struct napi_struct napi_tx;
struct device *dev; /* pointer back to the device (must be initialized first) */
struct net_device *ndev;
spinlock_t lock; /* during all ops except TX pckt processing */
@ -152,10 +148,8 @@ struct fs_enet_private {
int oldduplex, oldspeed, oldlink; /* current settings */
/* event masks */
u32 ev_napi_rx; /* mask of NAPI rx events */
u32 ev_napi_tx; /* mask of NAPI rx events */
u32 ev_rx; /* rx event mask */
u32 ev_tx; /* tx event mask */
u32 ev_napi; /* mask of NAPI events */
u32 ev; /* event mask */
u32 ev_err; /* error event mask */
u16 bd_rx_empty; /* mask of BD rx empty */

57
drivers/net/ethernet/freescale/fs_enet/mac-fcc.c
View File

@ -124,10 +124,8 @@ out:
return ret;
}
#define FCC_NAPI_RX_EVENT_MSK (FCC_ENET_RXF | FCC_ENET_RXB)
#define FCC_NAPI_TX_EVENT_MSK (FCC_ENET_TXB)
#define FCC_RX_EVENT (FCC_ENET_RXF)
#define FCC_TX_EVENT (FCC_ENET_TXB)
#define FCC_NAPI_EVENT_MSK (FCC_ENET_RXF | FCC_ENET_RXB | FCC_ENET_TXB)
#define FCC_EVENT (FCC_ENET_RXF | FCC_ENET_TXB)
#define FCC_ERR_EVENT_MSK (FCC_ENET_TXE)
static int setup_data(struct net_device *dev)
@ -137,10 +135,8 @@ static int setup_data(struct net_device *dev)
if (do_pd_setup(fep) != 0)
return -EINVAL;
fep->ev_napi_rx = FCC_NAPI_RX_EVENT_MSK;
fep->ev_napi_tx = FCC_NAPI_TX_EVENT_MSK;
fep->ev_rx = FCC_RX_EVENT;
fep->ev_tx = FCC_TX_EVENT;
fep->ev_napi = FCC_NAPI_EVENT_MSK;
fep->ev = FCC_EVENT;
fep->ev_err = FCC_ERR_EVENT_MSK;
return 0;
@ -424,52 +420,28 @@ static void stop(struct net_device *dev)
fs_cleanup_bds(dev);
}
static void napi_clear_rx_event(struct net_device *dev)
static void napi_clear_event_fs(struct net_device *dev)
{
struct fs_enet_private *fep = netdev_priv(dev);
fcc_t __iomem *fccp = fep->fcc.fccp;
W16(fccp, fcc_fcce, FCC_NAPI_RX_EVENT_MSK);
W16(fccp, fcc_fcce, FCC_NAPI_EVENT_MSK);
}
static void napi_enable_rx(struct net_device *dev)
static void napi_enable_fs(struct net_device *dev)
{
struct fs_enet_private *fep = netdev_priv(dev);
fcc_t __iomem *fccp = fep->fcc.fccp;
S16(fccp, fcc_fccm, FCC_NAPI_RX_EVENT_MSK);
S16(fccp, fcc_fccm, FCC_NAPI_EVENT_MSK);
}
static void napi_disable_rx(struct net_device *dev)
static void napi_disable_fs(struct net_device *dev)
{
struct fs_enet_private *fep = netdev_priv(dev);
fcc_t __iomem *fccp = fep->fcc.fccp;
C16(fccp, fcc_fccm, FCC_NAPI_RX_EVENT_MSK);
}
static void napi_clear_tx_event(struct net_device *dev)
{
struct fs_enet_private *fep = netdev_priv(dev);
fcc_t __iomem *fccp = fep->fcc.fccp;
W16(fccp, fcc_fcce, FCC_NAPI_TX_EVENT_MSK);
}
static void napi_enable_tx(struct net_device *dev)
{
struct fs_enet_private *fep = netdev_priv(dev);
fcc_t __iomem *fccp = fep->fcc.fccp;
S16(fccp, fcc_fccm, FCC_NAPI_TX_EVENT_MSK);
}
static void napi_disable_tx(struct net_device *dev)
{
struct fs_enet_private *fep = netdev_priv(dev);
fcc_t __iomem *fccp = fep->fcc.fccp;
C16(fccp, fcc_fccm, FCC_NAPI_TX_EVENT_MSK);
C16(fccp, fcc_fccm, FCC_NAPI_EVENT_MSK);
}
static void rx_bd_done(struct net_device *dev)
@ -595,12 +567,9 @@ const struct fs_ops fs_fcc_ops = {
.set_multicast_list = set_multicast_list,
.restart = restart,
.stop = stop,
.napi_clear_rx_event = napi_clear_rx_event,
.napi_enable_rx = napi_enable_rx,
.napi_disable_rx = napi_disable_rx,
.napi_clear_tx_event = napi_clear_tx_event,
.napi_enable_tx = napi_enable_tx,
.napi_disable_tx = napi_disable_tx,
.napi_clear_event = napi_clear_event_fs,
.napi_enable = napi_enable_fs,
.napi_disable = napi_disable_fs,
.rx_bd_done = rx_bd_done,
.tx_kickstart = tx_kickstart,
.get_int_events = get_int_events,

57
drivers/net/ethernet/freescale/fs_enet/mac-fec.c
View File

@ -109,10 +109,8 @@ static int do_pd_setup(struct fs_enet_private *fep)
return 0;
}
#define FEC_NAPI_RX_EVENT_MSK (FEC_ENET_RXF | FEC_ENET_RXB)
#define FEC_NAPI_TX_EVENT_MSK (FEC_ENET_TXF)
#define FEC_RX_EVENT (FEC_ENET_RXF)
#define FEC_TX_EVENT (FEC_ENET_TXF)
#define FEC_NAPI_EVENT_MSK (FEC_ENET_RXF | FEC_ENET_RXB | FEC_ENET_TXF)
#define FEC_EVENT (FEC_ENET_RXF | FEC_ENET_TXF)
#define FEC_ERR_EVENT_MSK (FEC_ENET_HBERR | FEC_ENET_BABR | \
FEC_ENET_BABT | FEC_ENET_EBERR)
@ -126,10 +124,8 @@ static int setup_data(struct net_device *dev)
fep->fec.hthi = 0;
fep->fec.htlo = 0;
fep->ev_napi_rx = FEC_NAPI_RX_EVENT_MSK;
fep->ev_napi_tx = FEC_NAPI_TX_EVENT_MSK;
fep->ev_rx = FEC_RX_EVENT;
fep->ev_tx = FEC_TX_EVENT;
fep->ev_napi = FEC_NAPI_EVENT_MSK;
fep->ev = FEC_EVENT;
fep->ev_err = FEC_ERR_EVENT_MSK;
return 0;
@ -396,52 +392,28 @@ static void stop(struct net_device *dev)
}
}
static void napi_clear_rx_event(struct net_device *dev)
static void napi_clear_event_fs(struct net_device *dev)
{
struct fs_enet_private *fep = netdev_priv(dev);
struct fec __iomem *fecp = fep->fec.fecp;
FW(fecp, ievent, FEC_NAPI_RX_EVENT_MSK);
FW(fecp, ievent, FEC_NAPI_EVENT_MSK);
}
static void napi_enable_rx(struct net_device *dev)
static void napi_enable_fs(struct net_device *dev)
{
struct fs_enet_private *fep = netdev_priv(dev);
struct fec __iomem *fecp = fep->fec.fecp;
FS(fecp, imask, FEC_NAPI_RX_EVENT_MSK);
FS(fecp, imask, FEC_NAPI_EVENT_MSK);
}
static void napi_disable_rx(struct net_device *dev)
static void napi_disable_fs(struct net_device *dev)
{
struct fs_enet_private *fep = netdev_priv(dev);
struct fec __iomem *fecp = fep->fec.fecp;
FC(fecp, imask, FEC_NAPI_RX_EVENT_MSK);
}
static void napi_clear_tx_event(struct net_device *dev)
{
struct fs_enet_private *fep = netdev_priv(dev);
struct fec __iomem *fecp = fep->fec.fecp;
FW(fecp, ievent, FEC_NAPI_TX_EVENT_MSK);
}
static void napi_enable_tx(struct net_device *dev)
{
struct fs_enet_private *fep = netdev_priv(dev);
struct fec __iomem *fecp = fep->fec.fecp;
FS(fecp, imask, FEC_NAPI_TX_EVENT_MSK);
}
static void napi_disable_tx(struct net_device *dev)
{
struct fs_enet_private *fep = netdev_priv(dev);
struct fec __iomem *fecp = fep->fec.fecp;
FC(fecp, imask, FEC_NAPI_TX_EVENT_MSK);
FC(fecp, imask, FEC_NAPI_EVENT_MSK);
}
static void rx_bd_done(struct net_device *dev)
@ -513,12 +485,9 @@ const struct fs_ops fs_fec_ops = {
.set_multicast_list = set_multicast_list,
.restart = restart,
.stop = stop,
.napi_clear_rx_event = napi_clear_rx_event,
.napi_enable_rx = napi_enable_rx,
.napi_disable_rx = napi_disable_rx,
.napi_clear_tx_event = napi_clear_tx_event,
.napi_enable_tx = napi_enable_tx,
.napi_disable_tx = napi_disable_tx,
.napi_clear_event = napi_clear_event_fs,
.napi_enable = napi_enable_fs,
.napi_disable = napi_disable_fs,
.rx_bd_done = rx_bd_done,
.tx_kickstart = tx_kickstart,
.get_int_events = get_int_events,

57
drivers/net/ethernet/freescale/fs_enet/mac-scc.c
View File

@ -115,10 +115,8 @@ static int do_pd_setup(struct fs_enet_private *fep)
return 0;
}
#define SCC_NAPI_RX_EVENT_MSK (SCCE_ENET_RXF | SCCE_ENET_RXB)
#define SCC_NAPI_TX_EVENT_MSK (SCCE_ENET_TXB)
#define SCC_RX_EVENT (SCCE_ENET_RXF)
#define SCC_TX_EVENT (SCCE_ENET_TXB)
#define SCC_NAPI_EVENT_MSK (SCCE_ENET_RXF | SCCE_ENET_RXB | SCCE_ENET_TXB)
#define SCC_EVENT (SCCE_ENET_RXF | SCCE_ENET_TXB)
#define SCC_ERR_EVENT_MSK (SCCE_ENET_TXE | SCCE_ENET_BSY)
static int setup_data(struct net_device *dev)
@ -130,10 +128,8 @@ static int setup_data(struct net_device *dev)
fep->scc.hthi = 0;
fep->scc.htlo = 0;
fep->ev_napi_rx = SCC_NAPI_RX_EVENT_MSK;
fep->ev_napi_tx = SCC_NAPI_TX_EVENT_MSK;
fep->ev_rx = SCC_RX_EVENT;
fep->ev_tx = SCC_TX_EVENT | SCCE_ENET_TXE;
fep->ev_napi = SCC_NAPI_EVENT_MSK;
fep->ev = SCC_EVENT | SCCE_ENET_TXE;
fep->ev_err = SCC_ERR_EVENT_MSK;
return 0;
@ -379,52 +375,28 @@ static void stop(struct net_device *dev)
fs_cleanup_bds(dev);
}
static void napi_clear_rx_event(struct net_device *dev)
static void napi_clear_event_fs(struct net_device *dev)
{
struct fs_enet_private *fep = netdev_priv(dev);
scc_t __iomem *sccp = fep->scc.sccp;
W16(sccp, scc_scce, SCC_NAPI_RX_EVENT_MSK);
W16(sccp, scc_scce, SCC_NAPI_EVENT_MSK);
}
static void napi_enable_rx(struct net_device *dev)
static void napi_enable_fs(struct net_device *dev)
{
struct fs_enet_private *fep = netdev_priv(dev);
scc_t __iomem *sccp = fep->scc.sccp;
S16(sccp, scc_sccm, SCC_NAPI_RX_EVENT_MSK);
S16(sccp, scc_sccm, SCC_NAPI_EVENT_MSK);
}
static void napi_disable_rx(struct net_device *dev)
static void napi_disable_fs(struct net_device *dev)
{
struct fs_enet_private *fep = netdev_priv(dev);
scc_t __iomem *sccp = fep->scc.sccp;
C16(sccp, scc_sccm, SCC_NAPI_RX_EVENT_MSK);
}
static void napi_clear_tx_event(struct net_device *dev)
{
struct fs_enet_private *fep = netdev_priv(dev);
scc_t __iomem *sccp = fep->scc.sccp;
W16(sccp, scc_scce, SCC_NAPI_TX_EVENT_MSK);
}
static void napi_enable_tx(struct net_device *dev)
{
struct fs_enet_private *fep = netdev_priv(dev);
scc_t __iomem *sccp = fep->scc.sccp;
S16(sccp, scc_sccm, SCC_NAPI_TX_EVENT_MSK);
}
static void napi_disable_tx(struct net_device *dev)
{
struct fs_enet_private *fep = netdev_priv(dev);
scc_t __iomem *sccp = fep->scc.sccp;
C16(sccp, scc_sccm, SCC_NAPI_TX_EVENT_MSK);
C16(sccp, scc_sccm, SCC_NAPI_EVENT_MSK);
}
static void rx_bd_done(struct net_device *dev)
@ -497,12 +469,9 @@ const struct fs_ops fs_scc_ops = {
.set_multicast_list = set_multicast_list,
.restart = restart,
.stop = stop,
.napi_clear_rx_event = napi_clear_rx_event,
.napi_enable_rx = napi_enable_rx,
.napi_disable_rx = napi_disable_rx,
.napi_clear_tx_event = napi_clear_tx_event,
.napi_enable_tx = napi_enable_tx,
.napi_disable_tx = napi_disable_tx,
.napi_clear_event = napi_clear_event_fs,
.napi_enable = napi_enable_fs,
.napi_disable = napi_disable_fs,
.rx_bd_done = rx_bd_done,
.tx_kickstart = tx_kickstart,
.get_int_events = get_int_events,