[Qemu-trivial] [PATCH trivial v2 2/4] net: cadence_gem: Add Tx descriptor fetch printf

[Peter Crosthwaite]

Add a debug printf for TX descriptor fetching. This helpful to anyone
needing to debug TX ring buffer traversal. Its also now consistent with
the RX code which has a similar printf.

Signed-off-by: Peter Crosthwaite <address@hidden>
---
changed since v1:
don't cast to unsigned (mjt review).

 hw/net/cadence_gem.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/hw/net/cadence_gem.c b/hw/net/cadence_gem.c
index 1721fb7..f0e9f5b 100644
--- a/hw/net/cadence_gem.c
+++ b/hw/net/cadence_gem.c
@@ -880,6 +880,8 @@ static void gem_transmit(GemState *s)
 
     /* read current descriptor */
     packet_desc_addr = s->tx_desc_addr;
+
+    DB_PRINT("read descriptor 0x%" HWADDR_PRIx "\n", packet_desc_addr);
     cpu_physical_memory_read(packet_desc_addr,
                              (uint8_t *)&desc[0], sizeof(desc));
     /* Handle all descriptors owned by hardware */
@@ -962,6 +964,7 @@ static void gem_transmit(GemState *s)
         } else {
             packet_desc_addr += 8;
         }
+        DB_PRINT("read descriptor 0x%" HWADDR_PRIx "\n", packet_desc_addr);
         cpu_physical_memory_read(packet_desc_addr,
                                  (uint8_t *)&desc[0], sizeof(desc));
     }
-- 
1.9.3.1.ga73a6ad