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Date: Mon, 06 Aug 2007 14:42:34 -0500
From: Brian King <brking@...ux.vnet.ibm.com>
To: santil@...ux.vnet.ibm.com
Cc: rcjenn@...ux.vnet.ibm.com, netdev@...r.kernel.org,
linuxppc-dev@...abs.org, brking@...ux.vnet.ibm.com
Subject: [PATCH 4/6] ibmveth: Add ethtool driver stats hooks
Add ethtool hooks to ibmveth to retrieve driver statistics.
Signed-off-by: Brian King <brking@...ux.vnet.ibm.com>
---
drivers/net/ibmveth.c | 53 +++++++++++++++++++++++++++++++++++++++++++++++++-
1 file changed, 52 insertions(+), 1 deletion(-)
diff -puN drivers/net/ibmveth.c~ibmveth_ethtool_driver_stats drivers/net/ibmveth.c
--- linux-2.6/drivers/net/ibmveth.c~ibmveth_ethtool_driver_stats 2007-07-19 11:18:41.000000000 -0500
+++ linux-2.6-bjking1/drivers/net/ibmveth.c 2007-07-19 11:18:41.000000000 -0500
@@ -112,6 +112,28 @@ MODULE_DESCRIPTION("IBM i/pSeries Virtua
MODULE_LICENSE("GPL");
MODULE_VERSION(ibmveth_driver_version);
+struct ibmveth_stat {
+ char name[ETH_GSTRING_LEN];
+ int offset;
+};
+
+#define IBMVETH_STAT_OFF(stat) offsetof(struct ibmveth_adapter, stat)
+#define IBMVETH_GET_STAT(a, off) *((u64 *)(((unsigned long)(a)) + off))
+
+struct ibmveth_stat ibmveth_stats[] = {
+ { "replenish_task_cycles", IBMVETH_STAT_OFF(replenish_task_cycles) },
+ { "replenish_no_mem", IBMVETH_STAT_OFF(replenish_no_mem) },
+ { "replenish_add_buff_failure", IBMVETH_STAT_OFF(replenish_add_buff_failure) },
+ { "replenish_add_buff_success", IBMVETH_STAT_OFF(replenish_add_buff_success) },
+ { "rx_invalid_buffer", IBMVETH_STAT_OFF(rx_invalid_buffer) },
+ { "rx_no_buffer", IBMVETH_STAT_OFF(rx_no_buffer) },
+ { "tx_multidesc_send", IBMVETH_STAT_OFF(tx_multidesc_send) },
+ { "tx_linearized", IBMVETH_STAT_OFF(tx_linearized) },
+ { "tx_linearize_failed", IBMVETH_STAT_OFF(tx_linearize_failed) },
+ { "tx_map_failed", IBMVETH_STAT_OFF(tx_map_failed) },
+ { "tx_send_failed", IBMVETH_STAT_OFF(tx_send_failed) }
+};
+
/* simple methods of getting data from the current rxq entry */
static inline int ibmveth_rxq_pending_buffer(struct ibmveth_adapter *adapter)
{
@@ -751,6 +773,32 @@ static u32 ibmveth_get_rx_csum(struct ne
return adapter->rx_csum;
}
+static void ibmveth_get_strings(struct net_device *dev, u32 stringset, u8 *data)
+{
+ int i;
+
+ if (stringset != ETH_SS_STATS)
+ return;
+
+ for (i = 0; i < ARRAY_SIZE(ibmveth_stats); i++, data += ETH_GSTRING_LEN)
+ memcpy(data, ibmveth_stats[i].name, ETH_GSTRING_LEN);
+}
+
+static int ibmveth_get_stats_count(struct net_device *dev)
+{
+ return ARRAY_SIZE(ibmveth_stats);
+}
+
+static void ibmveth_get_ethtool_stats(struct net_device *dev,
+ struct ethtool_stats *stats, u64 *data)
+{
+ int i;
+ struct ibmveth_adapter *adapter = dev->priv;
+
+ for (i = 0; i < ARRAY_SIZE(ibmveth_stats); i++)
+ data[i] = IBMVETH_GET_STAT(adapter, ibmveth_stats[i].offset);
+}
+
static const struct ethtool_ops netdev_ethtool_ops = {
.get_drvinfo = netdev_get_drvinfo,
.get_settings = netdev_get_settings,
@@ -761,7 +809,10 @@ static const struct ethtool_ops netdev_e
.get_rx_csum = ibmveth_get_rx_csum,
.set_rx_csum = ibmveth_set_rx_csum,
.get_tso = ethtool_op_get_tso,
- .get_ufo = ethtool_op_get_ufo
+ .get_ufo = ethtool_op_get_ufo,
+ .get_strings = ibmveth_get_strings,
+ .get_stats_count = ibmveth_get_stats_count,
+ .get_ethtool_stats = ibmveth_get_ethtool_stats
};
static int ibmveth_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
diff -puN drivers/net/ibmveth.h~ibmveth_ethtool_driver_stats drivers/net/ibmveth.h
_
-
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