0d63785c6b
The mvneta controller provides a 8-bit register to update the pending
Tx descriptor counter. Then, a maximum of 255 Tx descriptors can be
added at once. In the current code the mvneta_txq_pend_desc_add function
assumes the caller takes care of this limit. But it is not the case. In
some situations (xmit_more flag), more than 255 descriptors are added.
When this happens, the Tx descriptor counter register is updated with a
wrong value, which breaks the whole Tx queue management.
This patch fixes the issue by allowing the mvneta_txq_pend_desc_add
function to process more than 255 Tx descriptors.
Fixes:
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|---|---|---|
| .. | ||
| Kconfig | ||
| Makefile | ||
| mv643xx_eth.c | ||
| mvmdio.c | ||
| mvneta.c | ||
| mvneta_bm.c | ||
| mvneta_bm.h | ||
| mvpp2.c | ||
| pxa168_eth.c | ||
| skge.c | ||
| skge.h | ||
| sky2.c | ||
| sky2.h | ||