atl1: add ethtool register dump

Add the ethtool register dump option to the atl1 driver.

Signed-off-by: Jay Cliburn <jacliburn@bellsouth.net>
Acked-by: Chris Snook <csnook@redhat.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>

2 files changed, 54 insertions, 0 deletions

diff --git a/drivers/net/atlx/atl1.c b/drivers/net/atlx/atl1.c
index 8a26dad96acb..1f564f03d9d6 100644
--- a/drivers/net/atlx/atl1.c
+++ b/drivers/net/atlx/atl1.c
@@ -2513,6 +2513,57 @@ static int atl1_set_wol(struct net_device *netdev,
         return 0;
 }
 
+static int atl1_get_regs_len(struct net_device *netdev)
+{
+        return ATL1_REG_COUNT * sizeof(u32);
+}
+
+static void atl1_get_regs(struct net_device *netdev, struct ethtool_regs *regs,
+        void *p)
+{
+        struct atl1_adapter *adapter = netdev_priv(netdev);
+        struct atl1_hw *hw = &adapter->hw;
+        unsigned int i;
+        u32 *regbuf = p;
+
+        for (i = 0; i < ATL1_REG_COUNT; i++) {
+                /*
+                 * This switch statement avoids reserved regions
+                 * of register space.
+                 */
+                switch (i) {
+                case 6 ... 9:
+                case 14:
+                case 29 ... 31:
+                case 34 ... 63:
+                case 75 ... 127:
+                case 136 ... 1023:
+                case 1027 ... 1087:
+                case 1091 ... 1151:
+                case 1194 ... 1195:
+                case 1200 ... 1201:
+                case 1206 ... 1213:
+                case 1216 ... 1279:
+                case 1290 ... 1311:
+                case 1323 ... 1343:
+                case 1358 ... 1359:
+                case 1368 ... 1375:
+                case 1378 ... 1383:
+                case 1388 ... 1391:
+                case 1393 ... 1395:
+                case 1402 ... 1403:
+                case 1410 ... 1471:
+                case 1522 ... 1535:
+                        /* reserved region; don't read it */
+                        regbuf[i] = 0;
+                        break;
+                default:
+                        /* unreserved region */
+                        regbuf[i] = ioread32(hw->hw_addr + (i * sizeof(u32)));
+                }
+        }
+}
+
 static void atl1_get_ringparam(struct net_device *netdev,
         struct ethtool_ringparam *ring)
 {
@@ -2703,6 +2754,8 @@ const struct ethtool_ops atl1_ethtool_ops = {
         .get_drvinfo            = atl1_get_drvinfo,
         .get_wol                = atl1_get_wol,
         .set_wol                = atl1_set_wol,
+        .get_regs_len           = atl1_get_regs_len,
+        .get_regs               = atl1_get_regs,
         .get_ringparam          = atl1_get_ringparam,
         .set_ringparam          = atl1_set_ringparam,
         .get_pauseparam         = atl1_get_pauseparam,
diff --git a/drivers/net/atlx/atl1.h b/drivers/net/atlx/atl1.h
index 538948d5a184..30c5a8d72f3a 100644
--- a/drivers/net/atlx/atl1.h
+++ b/drivers/net/atlx/atl1.h
@@ -584,6 +584,7 @@ enum atl1_dma_req_block {
 #define ATL1_DEFAULT_RFD        512
 #define ATL1_MIN_RFD            128
 #define ATL1_MAX_RFD            2048
+#define ATL1_REG_COUNT          1538
 
 #define ATL1_GET_DESC(R, i, type)       (&(((type *)((R)->desc))[i]))
 #define ATL1_RFD_DESC(R, i)     ATL1_GET_DESC(R, i, struct rx_free_desc)