diff options
| author | Claudiu Manoil <claudiu.manoil@freescale.com> | 2012-06-28 04:40:53 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2012-06-28 16:57:26 -0700 |
| commit | 9740e001932f59ee007d13ee3f39bb1b61086651 (patch) | |
| tree | b5102ccd59a77525cdb71343f19a83a6ccb2e51c /drivers | |
| parent | 7cecb523adedcaf8acba5e14d47559d8bc3f40d7 (diff) | |
| download | lwn-9740e001932f59ee007d13ee3f39bb1b61086651.tar.gz lwn-9740e001932f59ee007d13ee3f39bb1b61086651.zip | |
gianfar: Fix RXICr/TXICr programming for multi-queue mode
The correct behavior is to program the interrupt coalescing regs
(RXICr/TXICr) in accordance with the Rx/Tx Q's "rx/txcoalescing"
flag. That is, if the coalescing flag is 0 for a given Rx/Tx queue
then the corresponding coalescing register should be cleared.
This behavior is correctly implemented for the single-queue mode
(SQ_SG_MODE), but not for the multi-queue mode (MQ_MG_MODE).
This fixes the later case.
Signed-off-by: Claudiu Manoil <claudiu.manoil@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/ethernet/freescale/gianfar.c | 10 |
1 files changed, 4 insertions, 6 deletions
diff --git a/drivers/net/ethernet/freescale/gianfar.c b/drivers/net/ethernet/freescale/gianfar.c index 0741aded9eb0..f2db8fca46a1 100644 --- a/drivers/net/ethernet/freescale/gianfar.c +++ b/drivers/net/ethernet/freescale/gianfar.c @@ -1804,18 +1804,16 @@ void gfar_configure_coalescing(struct gfar_private *priv, if (priv->mode == MQ_MG_MODE) { baddr = ®s->txic0; for_each_set_bit(i, &tx_mask, priv->num_tx_queues) { - if (likely(priv->tx_queue[i]->txcoalescing)) { - gfar_write(baddr + i, 0); + gfar_write(baddr + i, 0); + if (likely(priv->tx_queue[i]->txcoalescing)) gfar_write(baddr + i, priv->tx_queue[i]->txic); - } } baddr = ®s->rxic0; for_each_set_bit(i, &rx_mask, priv->num_rx_queues) { - if (likely(priv->rx_queue[i]->rxcoalescing)) { - gfar_write(baddr + i, 0); + gfar_write(baddr + i, 0); + if (likely(priv->rx_queue[i]->rxcoalescing)) gfar_write(baddr + i, priv->rx_queue[i]->rxic); - } } } } |