be2net: support deleting FW dump via ethtool (only for Lancer)

This patch adds support to delete an existing FW-dump in Lancer via ethtool.
Initiating a new dump is not allowed if a FW dump is already present in the
adapter. The existing dump has to be first explicitly deleted.

Signed-off-by: Kalesh AP <kalesh.purayil@emulex.com>
Signed-off-by: Sathya Perla <sathya.perla@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 8 insertions, 9 deletions

diff --git a/drivers/net/ethernet/emulex/benet/be_ethtool.c b/drivers/net/ethernet/emulex/benet/be_ethtool.c
index 25f516d6eb9e..0cd3311409a8 100644
--- a/drivers/net/ethernet/emulex/benet/be_ethtool.c
+++ b/drivers/net/ethernet/emulex/benet/be_ethtool.c
@@ -681,22 +681,21 @@ static int be_set_dump(struct net_device *netdev, struct ethtool_dump *dump)
         struct device *dev = &adapter->pdev->dev;
         int status;
 
-        if (!lancer_chip(adapter)) {
-                dev_err(dev, "FW dump not supported\n");
+        if (!lancer_chip(adapter) ||
+            !check_privilege(adapter, MAX_PRIVILEGES))
                 return -EOPNOTSUPP;
-        }
-
-        if (dump_present(adapter)) {
-                dev_err(dev, "Previous dump not cleared, not forcing dump\n");
-                return 0;
-        }
 
         switch (dump->flag) {
         case LANCER_INITIATE_FW_DUMP:
                 status = lancer_initiate_dump(adapter);
                 if (!status)
-                        dev_info(dev, "F/w dump initiated successfully\n");
+                        dev_info(dev, "FW dump initiated successfully\n");
                 break;
+        case LANCER_DELETE_FW_DUMP:
+                status = lancer_delete_dump(adapter);
+                if (!status)
+                        dev_info(dev, "FW dump deleted successfully\n");
+        break;
         default:
                 dev_err(dev, "Invalid dump level: 0x%x\n", dump->flag);
                 return -EINVAL;