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[3/3] linux-generic: pktio: don't return packet after failed enqueue

Message ID 1461773622-26062-4-git-send-email-zoltan.kiss@linaro.org
State New
Headers show

Commit Message

Zoltan Kiss April 27, 2016, 4:13 p.m. UTC
If queue_enq() fails, there is a serious internal error, the packet
should be released instead of passing it back to pktin_poll() for
enqueueing on an another one.
Also return the error if there is any, not just the queue_enq() ones.

Signed-off-by: Zoltan Kiss <zoltan.kiss@linaro.org>
---
 platform/linux-generic/include/odp_packet_io_internal.h |  2 +-
 platform/linux-generic/pktio/pktio_common.c             | 13 ++++++-------
 platform/linux-generic/pktio/socket.c                   |  5 ++---
 platform/linux-generic/pktio/socket_mmap.c              |  4 ++--
 4 files changed, 11 insertions(+), 13 deletions(-)
diff mbox

Patch

diff --git a/platform/linux-generic/include/odp_packet_io_internal.h b/platform/linux-generic/include/odp_packet_io_internal.h
index cca5c39..19b0551 100644
--- a/platform/linux-generic/include/odp_packet_io_internal.h
+++ b/platform/linux-generic/include/odp_packet_io_internal.h
@@ -169,7 +169,7 @@  typedef struct pktio_if_ops {
 } pktio_if_ops_t;
 
 int _odp_packet_cls_enq(pktio_entry_t *pktio_entry, const uint8_t *base,
-			uint16_t buf_len, odp_packet_t *pkt_ret);
+			uint16_t buf_len);
 
 extern void *pktio_entry_ptr[];
 
diff --git a/platform/linux-generic/pktio/pktio_common.c b/platform/linux-generic/pktio/pktio_common.c
index c568da3..394ee63 100644
--- a/platform/linux-generic/pktio/pktio_common.c
+++ b/platform/linux-generic/pktio/pktio_common.c
@@ -9,8 +9,7 @@ 
 #include <odp_classification_internal.h>
 
 int _odp_packet_cls_enq(pktio_entry_t *pktio_entry,
-			const uint8_t *base, uint16_t buf_len,
-			odp_packet_t *pkt_ret)
+			const uint8_t *base, uint16_t buf_len)
 {
 	cos_t *cos;
 	odp_packet_t pkt;
@@ -25,28 +24,28 @@  int _odp_packet_cls_enq(pktio_entry_t *pktio_entry,
 
 	/* if No CoS found then drop the packet */
 	if (cos == NULL || cos->s.queue == NULL || cos->s.pool == NULL)
-		return 0;
+		return -1;
 
 	pool = cos->s.pool->s.pool_hdl;
 
 	pkt = odp_packet_alloc(pool, buf_len);
 	if (odp_unlikely(pkt == ODP_PACKET_INVALID))
-		return 0;
+		return -1;
 
 	copy_packet_parser_metadata(&pkt_hdr, odp_packet_hdr(pkt));
 	odp_packet_hdr(pkt)->input = pktio_entry->s.handle;
 
 	if (odp_packet_copydata_in(pkt, 0, buf_len, base) != 0) {
 		odp_packet_free(pkt);
-		return 0;
+		return -1;
 	}
 
 	/* Parse and set packet header data */
 	odp_packet_pull_tail(pkt, odp_packet_len(pkt) - buf_len);
 	ret = queue_enq(cos->s.queue, odp_buf_to_hdr((odp_buffer_t)pkt), 0);
 	if (ret < 0) {
-		*pkt_ret = pkt;
-		return 1;
+		odp_packet_free(pkt);
+		return -1;
 	}
 
 	return 0;
diff --git a/platform/linux-generic/pktio/socket.c b/platform/linux-generic/pktio/socket.c
index edc36a1..6563565 100644
--- a/platform/linux-generic/pktio/socket.c
+++ b/platform/linux-generic/pktio/socket.c
@@ -649,10 +649,9 @@  static int sock_mmsg_recv(pktio_entry_t *pktio_entry,
 							eth_hdr->h_source)))
 				continue;
 
-			ret = _odp_packet_cls_enq(pktio_entry, base,
-						  pkt_len, &pkt_table[nb_rx]);
+			ret = _odp_packet_cls_enq(pktio_entry, base, pkt_len);
 			if (ret)
-				nb_rx++;
+				nb_rx = -1;
 		}
 	} else {
 		struct iovec iovecs[ODP_PACKET_SOCKET_MAX_BURST_RX]
diff --git a/platform/linux-generic/pktio/socket_mmap.c b/platform/linux-generic/pktio/socket_mmap.c
index caca708..d7ca865 100644
--- a/platform/linux-generic/pktio/socket_mmap.c
+++ b/platform/linux-generic/pktio/socket_mmap.c
@@ -149,9 +149,9 @@  static inline unsigned pkt_mmap_v2_rx(pktio_entry_t *pktio_entry,
 
 		if (pktio_cls_enabled(pktio_entry)) {
 			ret = _odp_packet_cls_enq(pktio_entry, pkt_buf,
-						  pkt_len, &pkt_table[nb_rx]);
+						  pkt_len);
 			if (ret)
-				nb_rx++;
+				nb_rx = -1;
 		} else {
 			odp_packet_hdr_t *hdr;