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[PATCH for-5.2 12/19] ftgmac100: Change interrupt status when a DMA erro

From: Cédric Le Goater
Subject: [PATCH for-5.2 12/19] ftgmac100: Change interrupt status when a DMA error occurs
Date: Thu, 6 Aug 2020 15:20:59 +0200

The model uses today the "No transmit buffer unavailable" interrupt
status which it is not appropriate. According to the Aspeed specs, no
interrupts are raised in that case. An "AHB error" status seems like a
better modeling choice for all implementations since it is covered by
the Linux kernel.

Cc: Frederic Konrad <konrad.frederic@yahoo.fr>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
 hw/net/ftgmac100.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/hw/net/ftgmac100.c b/hw/net/ftgmac100.c
index 5c0fe2d8cb75..014980d30aca 100644
--- a/hw/net/ftgmac100.c
+++ b/hw/net/ftgmac100.c
@@ -517,7 +517,7 @@ static void ftgmac100_do_tx(FTGMAC100State *s, uint32_t 
         if (dma_memory_read(&address_space_memory, bd.des3, ptr, len)) {
             qemu_log_mask(LOG_GUEST_ERROR, "%s: failed to read packet @ 
                           __func__, bd.des3);
-            s->isr |= FTGMAC100_INT_NO_NPTXBUF;
+            s->isr |= FTGMAC100_INT_AHB_ERR;

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