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[Qemu-devel] [PATCH net v1 2/4] net: cadence_gem: Add Tx descriptor fetc
From: |
Peter Crosthwaite |
Subject: |
[Qemu-devel] [PATCH net v1 2/4] net: cadence_gem: Add Tx descriptor fetch printf |
Date: |
Wed, 7 May 2014 02:16:58 -0700 |
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>
---
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 1c36e48..f999886 100644
--- a/hw/net/cadence_gem.c
+++ b/hw/net/cadence_gem.c
@@ -886,6 +886,8 @@ static void gem_transmit(GemState *s)
/* read current descriptor */
packet_desc_addr = s->tx_desc_addr;
+
+ DB_PRINT("read descriptor 0x%x\n", (unsigned)packet_desc_addr);
cpu_physical_memory_read(packet_desc_addr,
(uint8_t *)&desc[0], sizeof(desc));
/* Handle all descriptors owned by hardware */
@@ -968,6 +970,7 @@ static void gem_transmit(GemState *s)
} else {
packet_desc_addr += 8;
}
+ DB_PRINT("read descriptor 0x%x\n", (unsigned)packet_desc_addr);
cpu_physical_memory_read(packet_desc_addr,
(uint8_t *)&desc[0], sizeof(desc));
}
--
1.9.2.1.g06c4abd