diff options
| author |   Dai Haruki <dai.haruki@freescale.com> | 2008-12-16 15:29:52 -0800 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2008-12-16 15:29:52 -0800 |
| commit | b46a8454cd304b5376ba00d3457a612720e47269 (patch) | |
| tree | cf6a119d3903b519b9540585684ba1eb2ef130d6 /drivers/net/gianfar.c | |
| parent | gianfar: Convert gianfar to an of_platform_driver (diff) | |
| download | linux-dev-b46a8454cd304b5376ba00d3457a612720e47269.tar.xz linux-dev-b46a8454cd304b5376ba00d3457a612720e47269.zip | |
gianfar: Optimize interrupt coalescing configuration
Store the interrupt coalescing values in the form in which they will be
written to the interrupt coalescing registers. This puts a little overhead
into the ethtool configuration, and takes it out of the interrupt handler
Signed-off-by: Dai Haruki <dai.haruki@freescale.com>
Acked-by: Andy Fleming <afleming@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/gianfar.c')
| -rw-r--r-- | drivers/net/gianfar.c | 24 |
1 files changed, 8 insertions, 16 deletions
diff --git a/drivers/net/gianfar.c b/drivers/net/gianfar.c index 7398704c4b55..5100f75238af 100644 --- a/drivers/net/gianfar.c +++ b/drivers/net/gianfar.c @@ -428,11 +428,9 @@ static int gfar_probe(struct of_device *ofdev, priv->rx_ring_size = DEFAULT_RX_RING_SIZE; priv->txcoalescing = DEFAULT_TX_COALESCE; - priv->txcount = DEFAULT_TXCOUNT; - priv->txtime = DEFAULT_TXTIME; + priv->txic = DEFAULT_TXIC; priv->rxcoalescing = DEFAULT_RX_COALESCE; - priv->rxcount = DEFAULT_RXCOUNT; - priv->rxtime = DEFAULT_RXTIME; + priv->rxic = DEFAULT_RXIC; /* Enable most messages by default */ priv->msg_enable = (NETIF_MSG_IFUP << 1 ) - 1; @@ -1060,17 +1058,13 @@ int startup_gfar(struct net_device *dev) phy_start(priv->phydev); /* Configure the coalescing support */ + gfar_write(®s->txic, 0); if (priv->txcoalescing) - gfar_write(®s->txic, - mk_ic_value(priv->txcount, priv->txtime)); - else - gfar_write(®s->txic, 0); + gfar_write(®s->txic, priv->txic); + gfar_write(®s->rxic, 0); if (priv->rxcoalescing) - gfar_write(®s->rxic, - mk_ic_value(priv->rxcount, priv->rxtime)); - else - gfar_write(®s->rxic, 0); + gfar_write(®s->rxic, priv->rxic); if (priv->rx_csum_enable) rctrl |= RCTRL_CHECKSUMMING; @@ -1538,8 +1532,7 @@ static irqreturn_t gfar_transmit(int irq, void *dev_id) /* Otherwise, clear it */ if (likely(priv->txcoalescing)) { gfar_write(&priv->regs->txic, 0); - gfar_write(&priv->regs->txic, - mk_ic_value(priv->txcount, priv->txtime)); + gfar_write(&priv->regs->txic, priv->txic); } spin_unlock(&priv->txlock); @@ -1825,8 +1818,7 @@ static int gfar_poll(struct napi_struct *napi, int budget) /* Otherwise, clear it */ if (likely(priv->rxcoalescing)) { gfar_write(&priv->regs->rxic, 0); - gfar_write(&priv->regs->rxic, - mk_ic_value(priv->rxcount, priv->rxtime)); + gfar_write(&priv->regs->rxic, priv->rxic); } } |