[v2,12/15] net/enic: check maximum packet size in Tx prepare handler
diff mbox series

Message ID 20180629092944.15576-13-johndale@cisco.com
State Accepted, archived
Delegated to: Ferruh Yigit
Headers show
Series
  • enic PMD fixes and performance improvements
Related show

Checks

Context Check Description
ci/checkpatch success coding style OK
ci/Intel-compilation success Compilation OK

Commit Message

John Daley June 29, 2018, 9:29 a.m. UTC
From: Hyong Youb Kim <hyonkim@cisco.com>

The default tx handler checks the maximum packet size. Check it in the
prepare handler too. WQ stops working if the app/driver tries to send
oversized packets, so these checks are unavoidable.

Signed-off-by: Hyong Youb Kim <hyonkim@cisco.com>
Reviewed-by: John Daley <johndale@cisco.com>
---
 drivers/net/enic/enic_rxtx.c | 4 ++++
 1 file changed, 4 insertions(+)

Patch
diff mbox series

diff --git a/drivers/net/enic/enic_rxtx.c b/drivers/net/enic/enic_rxtx.c
index 7dec486fe..04a77fcb4 100644
--- a/drivers/net/enic/enic_rxtx.c
+++ b/drivers/net/enic/enic_rxtx.c
@@ -563,6 +563,10 @@  uint16_t enic_prep_pkts(void *tx_queue, struct rte_mbuf **tx_pkts,
 
 	for (i = 0; i != nb_pkts; i++) {
 		m = tx_pkts[i];
+		if (unlikely(m->pkt_len > ENIC_TX_MAX_PKT_SIZE)) {
+			rte_errno = EINVAL;
+			return i;
+		}
 		ol_flags = m->ol_flags;
 		if (ol_flags & wq->tx_offload_notsup_mask) {
 			rte_errno = ENOTSUP;