cxgb4: set coalesce parameters on all queues

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>

diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
index f0718e1a83696b0e2ec0b8fad9121288ecda81bc..c306df7d45684ce1fcd2f25012e8100da98abdd2 100644 (file)
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
@@ -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;
-
-       return set_rxq_intr_params(adap, &adap->sge.ethrxq[pi->first_qset].rspq,
-                       c->rx_coalesce_usecs, c->rx_max_coalesced_frames);
+       struct sge_rspq *q;
+       int i;
+       int r = 0;
+
+       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)