cxgb3 - Add LRO support

Add LRO support.

Signed-off-by: Divy Le Ray <divy@chelsio.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>

1 files changed, 19 insertions, 0 deletions

diff --git a/drivers/net/cxgb3/cxgb3_main.c b/drivers/net/cxgb3/cxgb3_main.c
index 3a3127216791..5447f3e60f07 100644
--- a/drivers/net/cxgb3/cxgb3_main.c
+++ b/drivers/net/cxgb3/cxgb3_main.c
@@ -1212,6 +1212,9 @@ static char stats_strings[][ETH_GSTRING_LEN] = {
         "VLANinsertions     ",
         "TxCsumOffload      ",
         "RxCsumGood         ",
+        "LroAggregated      ",
+        "LroFlushed         ",
+        "LroNoDesc          ",
         "RxDrops            ",
 
         "CheckTXEnToggled   ",
@@ -1340,6 +1343,9 @@ static void get_stats(struct net_device *dev, struct ethtool_stats *stats,
         *data++ = collect_sge_port_stats(adapter, pi, SGE_PSTAT_VLANINS);
         *data++ = collect_sge_port_stats(adapter, pi, SGE_PSTAT_TX_CSUM);
         *data++ = collect_sge_port_stats(adapter, pi, SGE_PSTAT_RX_CSUM_GOOD);
+        *data++ = collect_sge_port_stats(adapter, pi, SGE_PSTAT_LRO_AGGR);
+        *data++ = collect_sge_port_stats(adapter, pi, SGE_PSTAT_LRO_FLUSHED);
+        *data++ = collect_sge_port_stats(adapter, pi, SGE_PSTAT_LRO_NO_DESC);
         *data++ = s->rx_cong_drops;
 
         *data++ = s->num_toggled;
@@ -1558,6 +1564,13 @@ static int set_rx_csum(struct net_device *dev, u32 data)
         struct port_info *p = netdev_priv(dev);
 
         p->rx_csum_offload = data;
+        if (!data) {
+                struct adapter *adap = p->adapter;
+                int i;
+
+                for (i = p->first_qset; i < p->first_qset + p->nqsets; i++)
+                        adap->sge.qs[i].lro_enabled = 0;
+        }
         return 0;
 }
 
@@ -1830,6 +1843,11 @@ static int cxgb_extension_ioctl(struct net_device *dev, void __user *useraddr)
                                 }
                         }
                 }
+                if (t.lro >= 0) {
+                        struct sge_qset *qs = &adapter->sge.qs[t.qset_idx];
+                        q->lro = t.lro;
+                        qs->lro_enabled = t.lro;
+                }
                 break;
         }
         case CHELSIO_GET_QSET_PARAMS:{
@@ -1849,6 +1867,7 @@ static int cxgb_extension_ioctl(struct net_device *dev, void __user *useraddr)
                 t.fl_size[0] = q->fl_size;
                 t.fl_size[1] = q->jumbo_size;
                 t.polling = q->polling;
+                t.lro = q->lro;
                 t.intr_lat = q->coalesce_usecs;
                 t.cong_thres = q->cong_thres;