netxen: fix firmware type check

Unified firmware image may not contain MN type of firmware.
Driver should fall back to NOMN firmware type instead
of going to flash.

Signed-off-by: Dhananjay Phadke <dhananjay@netxen.com>
Signed-off-by: Amit Kumar Salecha <amit.salecha@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 13 insertions, 1 deletions

diff --git a/drivers/net/netxen/netxen_nic_init.c b/drivers/net/netxen/netxen_nic_init.c
index 80a667460514..02f8d4b4db63 100644
--- a/drivers/net/netxen/netxen_nic_init.c
+++ b/drivers/net/netxen/netxen_nic_init.c
@@ -619,17 +619,20 @@ nx_set_product_offs(struct netxen_adapter *adapter)
         uint32_t i;
         __le32 entries;
 
+        int mn_present = (NX_IS_REVISION_P2(adapter->ahw.revision_id)) ?
+                        1 : netxen_p3_has_mn(adapter);
+
         ptab_descr = nx_get_table_desc(unirom, NX_UNI_DIR_SECT_PRODUCT_TBL);
         if (ptab_descr == NULL)
                 return -1;
 
         entries = cpu_to_le32(ptab_descr->num_entries);
 
+nomn:
         for (i = 0; i < entries; i++) {
 
                 __le32 flags, file_chiprev, offs;
                 u8 chiprev = adapter->ahw.revision_id;
-                int mn_present = netxen_p3_has_mn(adapter);
                 uint32_t flagbit;
 
                 offs = cpu_to_le32(ptab_descr->findex) +
@@ -647,6 +650,11 @@ nx_set_product_offs(struct netxen_adapter *adapter)
                 }
         }
 
+        if (mn_present && NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
+                mn_present = 0;
+                goto nomn;
+        }
+
         return -1;
 }
 
@@ -1021,6 +1029,10 @@ netxen_p3_has_mn(struct netxen_adapter *adapter)
         u32 capability, flashed_ver;
         capability = 0;
 
+        /* NX2031 always had MN */
+        if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
+                return 1;
+
         netxen_rom_fast_read(adapter,
                         NX_FW_VERSION_OFFSET, (int *)&flashed_ver);
         flashed_ver = NETXEN_DECODE_VERSION(flashed_ver);