[PATCH] net/mana: fix wrong indexing on CQE error when coalescing is used

[longli at linuxonhyperv.com]

From: Long Li <longli at microsoft.com>

On a fatal CQE error when coalescing is used, update the correct index
and allow proceeding to the next CQE.

Fixes: 3409e0f172f6 ("net/mana: implement Rx CQE coalescing")
Signed-off-by: Long Li <longli at microsoft.com>
---
 drivers/net/mana/rx.c | 18 ++++++++----------
 1 file changed, 8 insertions(+), 10 deletions(-)

diff --git a/drivers/net/mana/rx.c b/drivers/net/mana/rx.c
index cacfd9ae1b..220b372b15 100644
--- a/drivers/net/mana/rx.c
+++ b/drivers/net/mana/rx.c
@@ -416,23 +416,21 @@ mana_rx_burst(void *dpdk_rxq, struct rte_mbuf **pkts, uint16_t pkts_n)
 
 		switch (oob->cqe_hdr.cqe_type) {
 		case CQE_RX_OKAY:
+		case CQE_RX_COALESCED_4:
 			/* Proceed to process mbuf */
 			break;
 
 		case CQE_RX_TRUNCATED:
-			DP_LOG(DEBUG, "Drop a truncated packet");
+		default:
+			DP_LOG(ERR, "RX CQE type %d client %d vendor %d",
+			       oob->cqe_hdr.cqe_type, oob->cqe_hdr.client_type,
+			       oob->cqe_hdr.vendor_err);
+
 			rxq->stats.errors++;
 			rte_pktmbuf_free(mbuf);
-			goto drop;
-
-		case CQE_RX_COALESCED_4:
-			/* Proceed to process mbuf */
-			break;
 
-		default:
-			DP_LOG(ERR, "Unknown RX CQE type %d",
-			       oob->cqe_hdr.cqe_type);
-			continue;
+			i++;
+			goto drop;
 		}
 
 		DP_LOG(DEBUG, "mana_rx_comp_oob type %d rxq %p",
-- 
2.34.1