ixgbe: add LRO support
Support for in-kernel LRO with the ability to enable/disable via ethtool
based on comments from Ben Hutchings.
Signed-off-by: Mallikarjuna R Chilakala <mallikarjuna.chilakala@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: PJ Waskiewicz <peter.p.waskiewicz.jr@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
diff --git a/drivers/net/ixgbe/ixgbe_ethtool.c b/drivers/net/ixgbe/ixgbe_ethtool.c
index 4e46377..12990b1 100644
--- a/drivers/net/ixgbe/ixgbe_ethtool.c
+++ b/drivers/net/ixgbe/ixgbe_ethtool.c
@@ -90,6 +90,8 @@
{"rx_header_split", IXGBE_STAT(rx_hdr_split)},
{"alloc_rx_page_failed", IXGBE_STAT(alloc_rx_page_failed)},
{"alloc_rx_buff_failed", IXGBE_STAT(alloc_rx_buff_failed)},
+ {"lro_aggregated", IXGBE_STAT(lro_aggregated)},
+ {"lro_flushed", IXGBE_STAT(lro_flushed)},
};
#define IXGBE_QUEUE_STATS_LEN \
@@ -787,6 +789,7 @@
int stat_count = sizeof(struct ixgbe_queue_stats) / sizeof(u64);
int j, k;
int i;
+ u64 aggregated = 0, flushed = 0, no_desc = 0;
ixgbe_update_stats(adapter);
for (i = 0; i < IXGBE_GLOBAL_STATS_LEN; i++) {
@@ -801,11 +804,17 @@
i += k;
}
for (j = 0; j < adapter->num_rx_queues; j++) {
+ aggregated += adapter->rx_ring[j].lro_mgr.stats.aggregated;
+ flushed += adapter->rx_ring[j].lro_mgr.stats.flushed;
+ no_desc += adapter->rx_ring[j].lro_mgr.stats.no_desc;
queue_stat = (u64 *)&adapter->rx_ring[j].stats;
for (k = 0; k < stat_count; k++)
data[i + k] = queue_stat[k];
i += k;
}
+ adapter->lro_aggregated = aggregated;
+ adapter->lro_flushed = flushed;
+ adapter->lro_no_desc = no_desc;
}
static void ixgbe_get_strings(struct net_device *netdev, u32 stringset,
@@ -973,6 +982,8 @@
.get_ethtool_stats = ixgbe_get_ethtool_stats,
.get_coalesce = ixgbe_get_coalesce,
.set_coalesce = ixgbe_set_coalesce,
+ .get_flags = ethtool_op_get_flags,
+ .set_flags = ethtool_op_set_flags,
};
void ixgbe_set_ethtool_ops(struct net_device *netdev)