diff options
| author | Vladimir Sokolovsky <vlad@mellanox.co.il> | 2008-07-14 23:48:48 -0700 |
|---|---|---|
| committer | Roland Dreier <rolandd@cisco.com> | 2008-07-14 23:48:48 -0700 |
| commit | af40da894e96d5c826d38be3ea53ee00d9de0367 (patch) | |
| tree | 15b8e850d4227ec04289e5bc67d1838f231c8d9f /drivers/infiniband/ulp/ipoib/ipoib_ethtool.c | |
| parent | 12406734051a26e9fe4c8568e931dfddbb72d431 (diff) | |
IPoIB: add LRO support
Add "ipoib_use_lro" module parameter to enable LRO and an
"ipoib_lro_max_aggr" module parameter to set the max number of packets
to be aggregated. Make LRO controllable and LRO statistics accessible
through ethtool.
Signed-off-by: Vladimir Sokolovsky <vlad@mellanox.co.il>
Signed-off-by: Eli Cohen <eli@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Diffstat (limited to 'drivers/infiniband/ulp/ipoib/ipoib_ethtool.c')
| -rw-r--r-- | drivers/infiniband/ulp/ipoib/ipoib_ethtool.c | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/drivers/infiniband/ulp/ipoib/ipoib_ethtool.c b/drivers/infiniband/ulp/ipoib/ipoib_ethtool.c index 10279b79c44..66af5c1a76e 100644 --- a/drivers/infiniband/ulp/ipoib/ipoib_ethtool.c +++ b/drivers/infiniband/ulp/ipoib/ipoib_ethtool.c @@ -86,11 +86,57 @@ static int ipoib_set_coalesce(struct net_device *dev, return 0; } +static const char ipoib_stats_keys[][ETH_GSTRING_LEN] = { + "LRO aggregated", "LRO flushed", + "LRO avg aggr", "LRO no desc" +}; + +static void ipoib_get_strings(struct net_device *netdev, u32 stringset, u8 *data) +{ + switch (stringset) { + case ETH_SS_STATS: + memcpy(data, *ipoib_stats_keys, sizeof(ipoib_stats_keys)); + break; + } +} + +static int ipoib_get_sset_count(struct net_device *dev, int sset) +{ + switch (sset) { + case ETH_SS_STATS: + return ARRAY_SIZE(ipoib_stats_keys); + default: + return -EOPNOTSUPP; + } +} + +static void ipoib_get_ethtool_stats(struct net_device *dev, + struct ethtool_stats *stats, uint64_t *data) +{ + struct ipoib_dev_priv *priv = netdev_priv(dev); + int index = 0; + + /* Get LRO statistics */ + data[index++] = priv->lro.lro_mgr.stats.aggregated; + data[index++] = priv->lro.lro_mgr.stats.flushed; + if (priv->lro.lro_mgr.stats.flushed) + data[index++] = priv->lro.lro_mgr.stats.aggregated / + priv->lro.lro_mgr.stats.flushed; + else + data[index++] = 0; + data[index++] = priv->lro.lro_mgr.stats.no_desc; +} + static const struct ethtool_ops ipoib_ethtool_ops = { .get_drvinfo = ipoib_get_drvinfo, .get_tso = ethtool_op_get_tso, .get_coalesce = ipoib_get_coalesce, .set_coalesce = ipoib_set_coalesce, + .get_flags = ethtool_op_get_flags, + .set_flags = ethtool_op_set_flags, + .get_strings = ipoib_get_strings, + .get_sset_count = ipoib_get_sset_count, + .get_ethtool_stats = ipoib_get_ethtool_stats, }; void ipoib_set_ethtool_ops(struct net_device *dev) |