[dpdk-dev] [PATCH v4 2/2] app/testpmd: conserve offload flags of mbuf

[Yongseok Koh <yskoh@mellanox.com>]

If PMD delivers Rx packets with non-direct mbuf, ol_flags should not be
overwritten. For mlx5 PMD, if Multi-Packet RQ is enabled, Rx packets could
be externally attached mbufs.

Signed-off-by: Yongseok Koh <yskoh@mellanox.com>
---
 app/test-pmd/csumonly.c | 3 +++
 app/test-pmd/macfwd.c   | 3 +++
 app/test-pmd/macswap.c  | 3 +++
 3 files changed, 9 insertions(+)

diff --git a/app/test-pmd/csumonly.c b/app/test-pmd/csumonly.c
index 5f5ab64aa..bb0b675a8 100644
--- a/app/test-pmd/csumonly.c
+++ b/app/test-pmd/csumonly.c
@@ -770,6 +770,9 @@ pkt_burst_checksum_forward(struct fwd_stream *fs)
 			m->l4_len = info.l4_len;
 			m->tso_segsz = info.tso_segsz;
 		}
+		if (!RTE_MBUF_DIRECT(m))
+			tx_ol_flags |= m->ol_flags &
+				(IND_ATTACHED_MBUF | EXT_ATTACHED_MBUF);
 		m->ol_flags = tx_ol_flags;
 
 		/* Do split & copy for the packet. */
diff --git a/app/test-pmd/macfwd.c b/app/test-pmd/macfwd.c
index 2adce7019..ba0021194 100644
--- a/app/test-pmd/macfwd.c
+++ b/app/test-pmd/macfwd.c
@@ -96,6 +96,9 @@ pkt_burst_mac_forward(struct fwd_stream *fs)
 				&eth_hdr->d_addr);
 		ether_addr_copy(&ports[fs->tx_port].eth_addr,
 				&eth_hdr->s_addr);
+		if (!RTE_MBUF_DIRECT(mb))
+			ol_flags |= mb->ol_flags &
+				(IND_ATTACHED_MBUF | EXT_ATTACHED_MBUF);
 		mb->ol_flags = ol_flags;
 		mb->l2_len = sizeof(struct ether_hdr);
 		mb->l3_len = sizeof(struct ipv4_hdr);
diff --git a/app/test-pmd/macswap.c b/app/test-pmd/macswap.c
index e2cc4812c..b8d15f6ba 100644
--- a/app/test-pmd/macswap.c
+++ b/app/test-pmd/macswap.c
@@ -127,6 +127,9 @@ pkt_burst_mac_swap(struct fwd_stream *fs)
 		ether_addr_copy(&eth_hdr->s_addr, &eth_hdr->d_addr);
 		ether_addr_copy(&addr, &eth_hdr->s_addr);
 
+		if (!RTE_MBUF_DIRECT(mb))
+			ol_flags |= mb->ol_flags &
+				(IND_ATTACHED_MBUF | EXT_ATTACHED_MBUF);
 		mb->ol_flags = ol_flags;
 		mb->l2_len = sizeof(struct ether_hdr);
 		mb->l3_len = sizeof(struct ipv4_hdr);
-- 
2.11.0