gianfar: Introduce logical group support.

This patch introduces the group structure. The elements of this
structure are the interrupt lines, their corresponding names,
the register memory map.
The elements for this group are factored out from the gfar_private
structure. The introduction of group structure will help in
providing support for newer versions of etsec.

Currently, the support is present only for single group and
single tx/rx queues.

Signed-off-by: Sandeep Gopalpet <Sandeep.Kumar@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 8 insertions, 6 deletions

diff --git a/drivers/net/gianfar_ethtool.c b/drivers/net/gianfar_ethtool.c
index 6d0d1714c2f..c681b414767 100644
--- a/drivers/net/gianfar_ethtool.c
+++ b/drivers/net/gianfar_ethtool.c
@@ -137,10 +137,11 @@ static void gfar_fill_stats(struct net_device *dev, struct ethtool_stats *dummy,
 {
         int i;
         struct gfar_private *priv = netdev_priv(dev);
+        struct gfar __iomem *regs = priv->gfargrp.regs;
         u64 *extra = (u64 *) & priv->extra_stats;
 
         if (priv->device_flags & FSL_GIANFAR_DEV_HAS_RMON) {
-                u32 __iomem *rmon = (u32 __iomem *) & priv->regs->rmon;
+                u32 __iomem *rmon = (u32 __iomem *) &regs->rmon;
                 struct gfar_stats *stats = (struct gfar_stats *) buf;
 
                 for (i = 0; i < GFAR_RMON_LEN; i++)
@@ -223,7 +224,7 @@ static void gfar_get_regs(struct net_device *dev, struct ethtool_regs *regs, voi
 {
         int i;
         struct gfar_private *priv = netdev_priv(dev);
-        u32 __iomem *theregs = (u32 __iomem *) priv->regs;
+        u32 __iomem *theregs = (u32 __iomem *) priv->gfargrp.regs;
         u32 *buf = (u32 *) regbuf;
 
         for (i = 0; i < sizeof (struct gfar) / sizeof (u32); i++)
@@ -349,6 +350,7 @@ static int gfar_gcoalesce(struct net_device *dev, struct ethtool_coalesce *cvals
 static int gfar_scoalesce(struct net_device *dev, struct ethtool_coalesce *cvals)
 {
         struct gfar_private *priv = netdev_priv(dev);
+        struct gfar __iomem *regs = priv->gfargrp.regs;
         struct gfar_priv_tx_q *tx_queue = NULL;
         struct gfar_priv_rx_q *rx_queue = NULL;
 
@@ -407,13 +409,13 @@ static int gfar_scoalesce(struct net_device *dev, struct ethtool_coalesce *cvals
         tx_queue->txic = mk_ic_value(cvals->tx_max_coalesced_frames,
                 gfar_usecs2ticks(priv, cvals->tx_coalesce_usecs));
 
-        gfar_write(&priv->regs->rxic, 0);
+        gfar_write(&regs->rxic, 0);
         if (rx_queue->rxcoalescing)
-                gfar_write(&priv->regs->rxic, rx_queue->rxic);
+                gfar_write(&regs->rxic, rx_queue->rxic);
 
-        gfar_write(&priv->regs->txic, 0);
+        gfar_write(&regs->txic, 0);
         if (tx_queue->txcoalescing)
-                gfar_write(&priv->regs->txic, tx_queue->txic);
+                gfar_write(&regs->txic, tx_queue->txic);
 
         return 0;
 }