redonkable/alistair23-linux
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gianfar: Fix a filer bug

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We need to enable filer whenever we need to use multiple RX
queues. Also, need to program RIR0 register with the required
distribution we require, if using RX filer hashing support for
packet distribution to multiple queues.

Signed-off-by: Sandeep Gopalpet <Sandeep.Kumar@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Sandeep Gopalpet 2009-12-16 01:14:58 +00:00 committed by David S. Miller
parent e6bf95ffa8
commit 1ccb8389f2
2 changed files with 11 additions and 1 deletions
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8
drivers/net/gianfar.c
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@ -357,8 +357,11 @@ static void gfar_init_mac(struct net_device *ndev)
/* Configure the coalescing support */
gfar_configure_coalescing(priv, 0xFF, 0xFF);
if (priv->rx_filer_enable)
if (priv->rx_filer_enable) {
rctrl |= RCTRL_FILREN;
/* Program the RIR0 reg with the required distribution */
gfar_write(&regs->rir0, DEFAULT_RIR0);
}
if (priv->rx_csum_enable)
rctrl |= RCTRL_CHECKSUMMING;
@ -1022,6 +1025,9 @@ static int gfar_probe(struct of_device *ofdev,
priv->rx_queue[i]->rxic = DEFAULT_RXIC;
}
/* enable filer if using multiple RX queues*/
if(priv->num_rx_queues > 1)
priv->rx_filer_enable = 1;
/* Enable most messages by default */
priv->msg_enable = (NETIF_MSG_IFUP << 1 ) - 1;

4
drivers/net/gianfar.h
View file

@ -401,6 +401,10 @@ extern const char gfar_driver_version[];
#define FPR_FILER_MASK 0xFFFFFFFF
#define MAX_FILER_IDX 0xFF
/* This default RIR value directly corresponds
* to the 3-bit hash value generated */
#define DEFAULT_RIR0 0x05397700
/* RQFCR register bits */
#define RQFCR_GPI 0x80000000
#define RQFCR_HASHTBL_Q 0x00000000