[PATCH] b44: expose counters through ethtool

Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>

1 files changed, 44 insertions, 1 deletions

diff --git a/drivers/net/b44.c b/drivers/net/b44.c
index 3b6428f004f6..ac223fcf9864 100644
--- a/drivers/net/b44.c
+++ b/drivers/net/b44.c
@@ -106,6 +106,12 @@ static void b44_init_hw(struct b44 *);
 static int dma_desc_align_mask;
 static int dma_desc_sync_size;
 
+static const char b44_gstrings[][ETH_GSTRING_LEN] = {
+#define _B44(x...)      # x,
+B44_STAT_REG_DECLARE
+#undef _B44
+};
+
 static inline void b44_sync_dma_desc_for_device(struct pci_dev *pdev,
                                                 dma_addr_t dma_base,
                                                 unsigned long offset,
@@ -498,7 +504,10 @@ static void b44_stats_update(struct b44 *bp)
         for (reg = B44_TX_GOOD_O; reg <= B44_TX_PAUSE; reg += 4UL) {
                 *val++ += br32(bp, reg);
         }
-        val = &bp->hw_stats.rx_good_octets;
+
+        /* Pad */
+        reg += 8*4UL;
+
         for (reg = B44_RX_GOOD_O; reg <= B44_RX_NPAUSE; reg += 4UL) {
                 *val++ += br32(bp, reg);
         }
@@ -1772,6 +1781,37 @@ static int b44_set_pauseparam(struct net_device *dev,
         return 0;
 }
 
+static void b44_get_strings(struct net_device *dev, u32 stringset, u8 *data)
+{
+        switch(stringset) {
+        case ETH_SS_STATS:
+                memcpy(data, *b44_gstrings, sizeof(b44_gstrings));
+                break;
+        }
+}
+
+static int b44_get_stats_count(struct net_device *dev)
+{
+        return ARRAY_SIZE(b44_gstrings);
+}
+
+static void b44_get_ethtool_stats(struct net_device *dev,
+                                  struct ethtool_stats *stats, u64 *data)
+{
+        struct b44 *bp = netdev_priv(dev);
+        u32 *val = &bp->hw_stats.tx_good_octets;
+        u32 i;
+
+        spin_lock_irq(&bp->lock);
+
+        b44_stats_update(bp);
+
+        for (i = 0; i < ARRAY_SIZE(b44_gstrings); i++)
+                *data++ = *val++;
+
+        spin_unlock_irq(&bp->lock);
+}
+
 static struct ethtool_ops b44_ethtool_ops = {
         .get_drvinfo            = b44_get_drvinfo,
         .get_settings           = b44_get_settings,
@@ -1784,6 +1824,9 @@ static struct ethtool_ops b44_ethtool_ops = {
         .set_pauseparam         = b44_set_pauseparam,
         .get_msglevel           = b44_get_msglevel,
         .set_msglevel           = b44_set_msglevel,
+        .get_strings            = b44_get_strings,
+        .get_stats_count        = b44_get_stats_count,
+        .get_ethtool_stats      = b44_get_ethtool_stats,
         .get_perm_addr          = ethtool_op_get_perm_addr,
 };