Commit cc0251813277 ("net/netvsc: split send buffers from Tx
descriptors") changed the way that transmit descriptors are
allocated. They come from a single pool instead of being
individually attached to each mbuf. To find the IOVA, you need
to calculate the offset from the base of the pool.
Fixes: cc0251813277 ("net/netvsc: split send buffers from Tx descriptors")
Cc: sta...@dpdk.org
Signed-off-by: Chas Williams <3ch...@gmail.com>
---
drivers/net/netvsc/hn_rxtx.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/net/netvsc/hn_rxtx.c b/drivers/net/netvsc/hn_rxtx.c
index 86a4c0d74..0428c586a 100644
--- a/drivers/net/netvsc/hn_rxtx.c
+++ b/drivers/net/netvsc/hn_rxtx.c
@@ -1421,11 +1421,12 @@ static int hn_xmit_sg(struct hn_tx_queue *txq,
hn_rndis_dump(txd->rndis_pkt);
/* pass IOVA of rndis header in first segment */
- addr = rte_malloc_virt2iova(txd->rndis_pkt);
+ addr = rte_malloc_virt2iova(txq->tx_rndis);
if (unlikely(addr == RTE_BAD_IOVA)) {
PMD_DRV_LOG(ERR, "RNDIS transmit can not get iova");
return -EINVAL;
}
+ addr = addr + ((char *)txd->rndis_pkt - (char *)txq->tx_rndis);
sg[0].page = addr / PAGE_SIZE;
sg[0].ofs = addr & PAGE_MASK;
--
2.21.3
