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cxgb4: set coalesce parameters on all queues

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The coalesce parameters was set only on the first queue, which caused
interrupt rates to be larger on all the other queues.

This patch allows interrupt rates to be reduced for certain workloads
and colaesce parameters by 41%.

Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@linux.vnet.ibm.com>
Cc: steved@us.ibm.com
Cc: toml@us.ibm.com
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Thadeu Lima de Souza Cascardo 2013-01-15 05:15:10 +00:00 committed by David S. Miller
parent adbbf69d1a
commit d4fc9dc200
1 changed files with 13 additions and 2 deletions
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15
drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
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@ -1994,9 +1994,20 @@ static int set_coalesce(struct net_device *dev, struct ethtool_coalesce *c)
{
const struct port_info *pi = netdev_priv(dev);
struct adapter *adap = pi->adapter;
struct sge_rspq *q;
int i;
int r = 0;
return set_rxq_intr_params(adap, &adap->sge.ethrxq[pi->first_qset].rspq,
c->rx_coalesce_usecs, c->rx_max_coalesced_frames);
for (i = pi->first_qset; i < pi->first_qset + pi->nqsets; i++) {
q = &adap->sge.ethrxq[i].rspq;
r = set_rxq_intr_params(adap, q, c->rx_coalesce_usecs,
c->rx_max_coalesced_frames);
if (r) {
dev_err(&dev->dev, "failed to set coalesce %d\n", r);
break;
}
}
return r;
}
static int get_coalesce(struct net_device *dev, struct ethtool_coalesce *c)