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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>,
	Bruce Richardson <bruce.richardson@intel.com>,
	Konstantin Ananyev <konstantin.ananyev@intel.com>,
	Jerin Jacob <jerinj@marvell.com>,
	Ruifeng Wang <ruifeng.wang@arm.com>
Subject: [dpdk-dev] [PATCH 4/5] net/virtio: refactor Tx offload helper
Date: Thu,  1 Apr 2021 11:52:42 +0200
Message-ID: <20210401095243.18211-5-david.marchand@redhat.com> (raw)
In-Reply-To: <20210401095243.18211-1-david.marchand@redhat.com>

Purely cosmetic but it is rather odd to have an "offload" helper that
checks if it actually must do something.
We already have the same checks in most callers, so move this branch
in them.

Signed-off-by: David Marchand <david.marchand@redhat.com>
---
 drivers/net/virtio/virtio_rxtx.c             |  7 +-
 drivers/net/virtio/virtio_rxtx_packed_avx.h  |  2 +-
 drivers/net/virtio/virtio_rxtx_packed_neon.h |  2 +-
 drivers/net/virtio/virtqueue.h               | 83 +++++++++-----------
 4 files changed, 44 insertions(+), 50 deletions(-)

diff --git a/drivers/net/virtio/virtio_rxtx.c b/drivers/net/virtio/virtio_rxtx.c
index 40283001b0..a4e37ef379 100644
--- a/drivers/net/virtio/virtio_rxtx.c
+++ b/drivers/net/virtio/virtio_rxtx.c
@@ -448,7 +448,7 @@ virtqueue_enqueue_xmit_inorder(struct virtnet_tx *txvq,
 		if (!vq->hw->has_tx_offload)
 			virtqueue_clear_net_hdr(hdr);
 		else
-			virtqueue_xmit_offload(hdr, cookies[i], true);
+			virtqueue_xmit_offload(hdr, cookies[i]);
 
 		start_dp[idx].addr  = rte_mbuf_data_iova(cookies[i]) - head_size;
 		start_dp[idx].len   = cookies[i]->data_len + head_size;
@@ -495,7 +495,7 @@ virtqueue_enqueue_xmit_packed_fast(struct virtnet_tx *txvq,
 	if (!vq->hw->has_tx_offload)
 		virtqueue_clear_net_hdr(hdr);
 	else
-		virtqueue_xmit_offload(hdr, cookie, true);
+		virtqueue_xmit_offload(hdr, cookie);
 
 	dp->addr = rte_mbuf_data_iova(cookie) - head_size;
 	dp->len  = cookie->data_len + head_size;
@@ -581,7 +581,8 @@ virtqueue_enqueue_xmit(struct virtnet_tx *txvq, struct rte_mbuf *cookie,
 		idx = start_dp[idx].next;
 	}
 
-	virtqueue_xmit_offload(hdr, cookie, vq->hw->has_tx_offload);
+	if (vq->hw->has_tx_offload)
+		virtqueue_xmit_offload(hdr, cookie);
 
 	do {
 		start_dp[idx].addr  = rte_mbuf_data_iova(cookie);
diff --git a/drivers/net/virtio/virtio_rxtx_packed_avx.h b/drivers/net/virtio/virtio_rxtx_packed_avx.h
index 49e845d02a..33cac3244f 100644
--- a/drivers/net/virtio/virtio_rxtx_packed_avx.h
+++ b/drivers/net/virtio/virtio_rxtx_packed_avx.h
@@ -115,7 +115,7 @@ virtqueue_enqueue_batch_packed_vec(struct virtnet_tx *txvq,
 		virtio_for_each_try_unroll(i, 0, PACKED_BATCH_SIZE) {
 			hdr = rte_pktmbuf_mtod_offset(tx_pkts[i],
 					struct virtio_net_hdr *, -head_size);
-			virtqueue_xmit_offload(hdr, tx_pkts[i], true);
+			virtqueue_xmit_offload(hdr, tx_pkts[i]);
 		}
 	}
 
diff --git a/drivers/net/virtio/virtio_rxtx_packed_neon.h b/drivers/net/virtio/virtio_rxtx_packed_neon.h
index 851c81f312..1a49caf8af 100644
--- a/drivers/net/virtio/virtio_rxtx_packed_neon.h
+++ b/drivers/net/virtio/virtio_rxtx_packed_neon.h
@@ -134,7 +134,7 @@ virtqueue_enqueue_batch_packed_vec(struct virtnet_tx *txvq,
 		virtio_for_each_try_unroll(i, 0, PACKED_BATCH_SIZE) {
 			hdr = rte_pktmbuf_mtod_offset(tx_pkts[i],
 					struct virtio_net_hdr *, -head_size);
-			virtqueue_xmit_offload(hdr, tx_pkts[i], true);
+			virtqueue_xmit_offload(hdr, tx_pkts[i]);
 		}
 	}
 
diff --git a/drivers/net/virtio/virtqueue.h b/drivers/net/virtio/virtqueue.h
index 2e8826bc28..41a9b82a5f 100644
--- a/drivers/net/virtio/virtqueue.h
+++ b/drivers/net/virtio/virtqueue.h
@@ -613,52 +613,44 @@ virtqueue_notify(struct virtqueue *vq)
 } while (0)
 
 static inline void
-virtqueue_xmit_offload(struct virtio_net_hdr *hdr,
-			struct rte_mbuf *cookie,
-			uint8_t offload)
+virtqueue_xmit_offload(struct virtio_net_hdr *hdr, struct rte_mbuf *cookie)
 {
-	if (offload) {
-		uint64_t csum_l4 = cookie->ol_flags & PKT_TX_L4_MASK;
-
-		if (cookie->ol_flags & PKT_TX_TCP_SEG)
-			csum_l4 |= PKT_TX_TCP_CKSUM;
-
-		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,
-				dgram_cksum);
-			hdr->flags = VIRTIO_NET_HDR_F_NEEDS_CSUM;
-			break;
-
-		case PKT_TX_TCP_CKSUM:
-			hdr->csum_start = cookie->l2_len + cookie->l3_len;
-			hdr->csum_offset = offsetof(struct rte_tcp_hdr, cksum);
-			hdr->flags = VIRTIO_NET_HDR_F_NEEDS_CSUM;
-			break;
-
-		default:
-			ASSIGN_UNLESS_EQUAL(hdr->csum_start, 0);
-			ASSIGN_UNLESS_EQUAL(hdr->csum_offset, 0);
-			ASSIGN_UNLESS_EQUAL(hdr->flags, 0);
-			break;
-		}
+	uint64_t csum_l4 = cookie->ol_flags & PKT_TX_L4_MASK;
+
+	if (cookie->ol_flags & PKT_TX_TCP_SEG)
+		csum_l4 |= PKT_TX_TCP_CKSUM;
+
+	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, dgram_cksum);
+		hdr->flags = VIRTIO_NET_HDR_F_NEEDS_CSUM;
+		break;
+
+	case PKT_TX_TCP_CKSUM:
+		hdr->csum_start = cookie->l2_len + cookie->l3_len;
+		hdr->csum_offset = offsetof(struct rte_tcp_hdr, cksum);
+		hdr->flags = VIRTIO_NET_HDR_F_NEEDS_CSUM;
+		break;
+
+	default:
+		ASSIGN_UNLESS_EQUAL(hdr->csum_start, 0);
+		ASSIGN_UNLESS_EQUAL(hdr->csum_offset, 0);
+		ASSIGN_UNLESS_EQUAL(hdr->flags, 0);
+		break;
+	}
 
-		/* TCP Segmentation Offload */
-		if (cookie->ol_flags & PKT_TX_TCP_SEG) {
-			hdr->gso_type = (cookie->ol_flags & PKT_TX_IPV6) ?
-				VIRTIO_NET_HDR_GSO_TCPV6 :
-				VIRTIO_NET_HDR_GSO_TCPV4;
-			hdr->gso_size = cookie->tso_segsz;
-			hdr->hdr_len =
-				cookie->l2_len +
-				cookie->l3_len +
-				cookie->l4_len;
-		} else {
-			ASSIGN_UNLESS_EQUAL(hdr->gso_type, 0);
-			ASSIGN_UNLESS_EQUAL(hdr->gso_size, 0);
-			ASSIGN_UNLESS_EQUAL(hdr->hdr_len, 0);
-		}
+	/* TCP Segmentation Offload */
+	if (cookie->ol_flags & PKT_TX_TCP_SEG) {
+		hdr->gso_type = (cookie->ol_flags & PKT_TX_IPV6) ?
+			VIRTIO_NET_HDR_GSO_TCPV6 :
+			VIRTIO_NET_HDR_GSO_TCPV4;
+		hdr->gso_size = cookie->tso_segsz;
+		hdr->hdr_len = cookie->l2_len + cookie->l3_len + cookie->l4_len;
+	} else {
+		ASSIGN_UNLESS_EQUAL(hdr->gso_type, 0);
+		ASSIGN_UNLESS_EQUAL(hdr->gso_size, 0);
+		ASSIGN_UNLESS_EQUAL(hdr->hdr_len, 0);
 	}
 }
 
@@ -737,7 +729,8 @@ virtqueue_enqueue_xmit_packed(struct virtnet_tx *txvq, struct rte_mbuf *cookie,
 		}
 	}
 
-	virtqueue_xmit_offload(hdr, cookie, vq->hw->has_tx_offload);
+	if (vq->hw->has_tx_offload)
+		virtqueue_xmit_offload(hdr, cookie);
 
 	do {
 		uint16_t flags;
-- 
2.23.0


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

Thread overview: 60+ 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 ` [dpdk-dev] [PATCH 3/5] net/virtio: " David Marchand
2021-04-13 14:17   ` Maxime Coquelin
2021-04-01  9:52 ` David Marchand [this message]
2021-04-08 13:05   ` [dpdk-dev] [PATCH 4/5] net/virtio: refactor Tx offload helper 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
2021-05-04  8:29   ` [dpdk-dev] [PATCH v4 0/3] Offload flags fixes Maxime Coquelin

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