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From: David Marchand <david.marchand@redhat.com>
To: dev@dpdk.org
Cc: maxime.coquelin@redhat.com, olivier.matz@6wind.com,
	fbl@sysclose.org, i.maximets@ovn.org,
	Chenbo Xia <chenbo.xia@intel.com>
Subject: [dpdk-dev] [PATCH 3/5] net/virtio: do not touch Tx offload flags
Date: Thu,  1 Apr 2021 11:52:41 +0200	[thread overview]
Message-ID: <20210401095243.18211-4-david.marchand@redhat.com> (raw)
In-Reply-To: <20210401095243.18211-1-david.marchand@redhat.com>

Tx offload flags are of the application responsibility.
Leave the mbuf alone and use a local storage for implicit tcp checksum
offloading in case of TSO.

Signed-off-by: David Marchand <david.marchand@redhat.com>
---
 drivers/net/virtio/virtqueue.h | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/net/virtio/virtqueue.h b/drivers/net/virtio/virtqueue.h
index 71b66f3208..2e8826bc28 100644
--- a/drivers/net/virtio/virtqueue.h
+++ b/drivers/net/virtio/virtqueue.h
@@ -618,10 +618,12 @@ virtqueue_xmit_offload(struct virtio_net_hdr *hdr,
 			uint8_t offload)
 {
 	if (offload) {
+		uint64_t csum_l4 = cookie->ol_flags & PKT_TX_L4_MASK;
+
 		if (cookie->ol_flags & PKT_TX_TCP_SEG)
-			cookie->ol_flags |= PKT_TX_TCP_CKSUM;
+			csum_l4 |= PKT_TX_TCP_CKSUM;
 
-		switch (cookie->ol_flags & PKT_TX_L4_MASK) {
+		switch (csum_l4) {
 		case PKT_TX_UDP_CKSUM:
 			hdr->csum_start = cookie->l2_len + cookie->l3_len;
 			hdr->csum_offset = offsetof(struct rte_udp_hdr,
-- 
2.23.0


  parent reply	other threads:[~2021-04-01  9:55 UTC|newest]

Thread overview: 63+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-04-01  9:52 [dpdk-dev] [PATCH 0/5] Offload flags fixes David Marchand
2021-04-01  9:52 ` [dpdk-dev] [PATCH 1/5] mbuf: mark old offload flag as deprecated David Marchand
2021-04-07 20:14   ` Flavio Leitner
2021-04-08  7:23   ` Olivier Matz
2021-04-08  8:41     ` David Marchand
2021-04-01  9:52 ` [dpdk-dev] [PATCH 2/5] net/tap: do not touch Tx offload flags David Marchand
2021-04-07 20:15   ` Flavio Leitner
2021-04-08  7:41     ` Olivier Matz
2021-04-08 11:21       ` Flavio Leitner
2021-04-08 12:05         ` Olivier Matz
2021-04-08 12:58           ` Flavio Leitner
2021-04-09 13:30             ` Olivier Matz
2021-04-09 16:55               ` Flavio Leitner
2021-04-28 12:17               ` David Marchand
2021-04-08 12:16         ` Ananyev, Konstantin
2021-04-08  7:53   ` Olivier Matz
2021-04-28 12:12     ` David Marchand
2021-04-01  9:52 ` David Marchand [this message]
2021-04-13 14:17   ` [dpdk-dev] [PATCH 3/5] net/virtio: " Maxime Coquelin
2021-04-01  9:52 ` [dpdk-dev] [PATCH 4/5] net/virtio: refactor Tx offload helper David Marchand
2021-04-08 13:05   ` Flavio Leitner
2021-04-09  2:31   ` Ruifeng Wang
2021-04-01  9:52 ` [dpdk-dev] [PATCH 5/5] vhost: fix offload flags in Rx path David Marchand
2021-04-08  8:28   ` Olivier Matz
2021-04-08 18:38   ` Flavio Leitner
2021-04-13 15:27     ` Maxime Coquelin
2021-04-27 17:09       ` David Marchand
2021-04-27 17:19         ` David Marchand
2021-04-29  8:04 ` [dpdk-dev] [PATCH v2 0/4] Offload flags fixes David Marchand
2021-04-29  8:04   ` [dpdk-dev] [PATCH v2 1/4] mbuf: mark old offload flag as deprecated David Marchand
2021-04-29 12:14     ` Lance Richardson
2021-04-29 16:45     ` Ajit Khaparde
2021-04-29  8:04   ` [dpdk-dev] [PATCH v2 2/4] net/virtio: do not touch Tx offload flags David Marchand
2021-04-29 13:51     ` Flavio Leitner
2021-04-29  8:04   ` [dpdk-dev] [PATCH v2 3/4] net/virtio: refactor Tx offload helper David Marchand
2021-04-29 12:59     ` Maxime Coquelin
2021-04-29  8:04   ` [dpdk-dev] [PATCH v2 4/4] vhost: fix offload flags in Rx path David Marchand
2021-04-29 13:30     ` Maxime Coquelin
2021-04-29 13:31       ` Maxime Coquelin
2021-04-29 20:21         ` David Marchand
2021-04-30  8:38           ` Maxime Coquelin
2021-04-29 20:09       ` David Marchand
2021-04-29 18:39     ` Flavio Leitner
2021-04-29 19:18       ` David Marchand
2021-05-03 13:26 ` [dpdk-dev] [PATCH v3 0/4] Offload flags fixes David Marchand
2021-05-03 13:26   ` [dpdk-dev] [PATCH v3 1/4] mbuf: mark old offload flag as deprecated David Marchand
2021-05-03 14:02     ` Maxime Coquelin
2021-05-03 14:12     ` David Marchand
2021-05-03 13:26   ` [dpdk-dev] [PATCH v3 2/4] net/virtio: do not touch Tx offload flags David Marchand
2021-05-03 13:26   ` [dpdk-dev] [PATCH v3 3/4] net/virtio: refactor Tx offload helper David Marchand
2021-05-03 13:26   ` [dpdk-dev] [PATCH v3 4/4] vhost: fix offload flags in Rx path David Marchand
2021-05-03 15:24   ` [dpdk-dev] [PATCH v3 0/4] Offload flags fixes Maxime Coquelin
2021-05-03 16:21     ` David Marchand
2021-05-03 16:43 ` [dpdk-dev] [PATCH v4 0/3] " David Marchand
2021-05-03 16:43   ` [dpdk-dev] [PATCH v4 1/3] net/virtio: do not touch Tx offload flags David Marchand
2021-05-03 16:43   ` [dpdk-dev] [PATCH v4 2/3] net/virtio: refactor Tx offload helper David Marchand
2021-05-03 16:43   ` [dpdk-dev] [PATCH v4 3/3] vhost: fix offload flags in Rx path David Marchand
2021-05-04 11:07     ` Flavio Leitner
2021-05-08  6:24     ` Wang, Yinan
2021-05-12  3:29       ` Wang, Yinan
2021-05-12 15:20         ` David Marchand
2021-05-13  6:34           ` Wang, Yinan
2021-05-04  8:29   ` [dpdk-dev] [PATCH v4 0/3] Offload flags fixes Maxime Coquelin

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