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ibmveth: Add ethtool driver stats hooks 

Add ethtool hooks to ibmveth to retrieve driver statistics.

Signed-off-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
This commit is contained in:
Brian King 2007-08-17 09:16:43 -05:00 committed by David S. Miller
parent 80e536770c
commit ddbb4de967
1 changed files with 51 additions and 0 deletions
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51
drivers/net/ibmveth.c
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@ -113,6 +113,28 @@ MODULE_DESCRIPTION("IBM i/pSeries Virtual Ethernet Driver");
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)
{
@ -769,6 +791,32 @@ static u32 ibmveth_get_rx_csum(struct net_device *dev)
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,
@ -780,6 +828,9 @@ static const struct ethtool_ops netdev_ethtool_ops = {
.set_rx_csum = ibmveth_set_rx_csum,
.get_tso = ethtool_op_get_tso,
.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)