[dpdk-dev] [virtio-net-pmd PATCH v2 14/17] pmd: adapt to new rte_mbuf structure

[Olivier Matz <olivier.matz@6wind.com>]

The rte_mbuf structure is modified by the following commits in dpdk:
 mbuf: rename vlan_macip_len in hw_offload and increase its size
 mbuf: change ol_flags to 32 bits
 mbuf: replace data pointer by an offset
 mbuf: merge physaddr and buf_len in a bitfield
 mbuf: remove the rte_pktmbuf structure
 mbuf: remove rte_ctrlmbuf

We need to modify to conform to this new struct.

Signed-off-by: Olivier Matz <olivier.matz@6wind.com>
---
 virtio_user.c | 44 +++++++++++++++++++++-----------------------
 1 file changed, 21 insertions(+), 23 deletions(-)

diff --git a/virtio_user.c b/virtio_user.c
index 4e73aa3..5df7dde 100644
--- a/virtio_user.c
+++ b/virtio_user.c
@@ -192,11 +192,11 @@ struct virtio_pmd_ctrl {
 typedef struct igb_tx_queue rte_txq_t;
 typedef struct igb_rx_queue rte_rxq_t;
 /* until dpdk-1.3, bit-fields vlan_macip are flat in rte_pktmbuf */
-#define RTE_MBUF_VLAN_MAC_IP(m) (m)->pkt.vlan_tci
+#define RTE_MBUF_VLAN_MAC_IP(m) (m)->vlan_tci
 #else /* since dpdk-1.3 */
 typedef void rte_txq_t;
 typedef void rte_rxq_t;
-#define RTE_MBUF_VLAN_MAC_IP(m) (m)->pkt.vlan_macip.f.vlan_tci
+#define RTE_MBUF_VLAN_MAC_IP(m) (m)->hw_offload.vlan_tci
 #endif
 
 /* This part is taken from ixgbe and igb pmd drivers. */
@@ -205,14 +205,12 @@ rte_rxmbuf_alloc(struct rte_mempool* mp)
 {
 	struct rte_mbuf *m;
 	m = __rte_mbuf_raw_alloc(mp);
-	__rte_mbuf_sanity_check(m, RTE_MBUF_PKT, 0);
+	__rte_mbuf_sanity_check(m, 0);
 	return m;
 }
 
 #define RTE_MBUF_DATA_DMA_ADDR(mb) \
-	((uint64_t)(mb)->pkt.data - \
-	 (uint64_t)(mb)->buf_addr) + \
-	(mb)->buf_physaddr
+	(uint64_t) ((mb)->buf_physaddr + (mb)->data_off)
 
 static inline int
 virtio_has_feature(const struct virtio_net_adapter* adapter,
@@ -442,7 +440,7 @@ virtio_recv_buf(rte_rxq_t *rxq, struct rte_mbuf **rx_pkts, uint16_t nb_pkts)
 		i = idx;
 
 		buf = (struct rte_mbuf*)rq->user[i];
-		buf->pkt.data = ((char *)buf->buf_addr + RTE_PKTMBUF_HEADROOM);
+		buf->data_off = RTE_PKTMBUF_HEADROOM;
 		ptr = (struct virtio_pmd_net_hdr*)
 			((char*)buf->buf_addr + hdr_offt);
 
@@ -460,11 +458,11 @@ virtio_recv_buf(rte_rxq_t *rxq, struct rte_mbuf **rx_pkts, uint16_t nb_pkts)
 		rq->last_used++;
 		rq->freeslots++;
 
-		buf->pkt.nb_segs = n_frag;
-		buf->pkt.next = NULL;
-		buf->pkt.pkt_len = len;
-		buf->pkt.data_len = len;
-		buf->pkt.in_port = rq->port_id;
+		buf->nb_segs = n_frag;
+		buf->next = NULL;
+		buf->pkt_len = len;
+		buf->data_len = len;
+		buf->in_port = rq->port_id;
 		buf->ol_flags = 0; /* RSS - FDIR // Error */
 		RTE_MBUF_VLAN_MAC_IP(buf) = 0;
 
@@ -485,17 +483,17 @@ virtio_recv_buf(rte_rxq_t *rxq, struct rte_mbuf **rx_pkts, uint16_t nb_pkts)
 
 			i = idx;
 			buf = (struct rte_mbuf*)rq->user[i];
-			buf->pkt.data = ((char *)buf->buf_addr + hdr_offt);
+			buf->data_off = hdr_offt;
 
-			buf->pkt.next = NULL;
-			buf->pkt.data_len = len;
+			buf->next = NULL;
+			buf->data_len = len;
 
 			/* New tail */
-			cur_seg->pkt.next = buf;
+			cur_seg->next = buf;
 			cur_seg = buf;
 
 			/* Update head pkt_len */
-			rx_pkts[completed]->pkt.pkt_len += len;
+			rx_pkts[completed]->pkt_len += len;
 
 			rq->vr.desc[i].next = rq->head;
 			rq->head = idx;
@@ -505,7 +503,7 @@ virtio_recv_buf(rte_rxq_t *rxq, struct rte_mbuf **rx_pkts, uint16_t nb_pkts)
 
 			n_frag--;
 		}
-		rq->stats.ibytes += rx_pkts[completed]->pkt.pkt_len;
+		rq->stats.ibytes += rx_pkts[completed]->pkt_len;
 		rq->stats.ipackets++;
 		completed++;
 	}
@@ -613,11 +611,11 @@ static inline int
 virtio_send_packet(struct virtio_net_vring* tq, struct rte_mbuf* mbuf)
 {
 	unsigned int head, prev, i, avail;
-	unsigned int nseg = mbuf->pkt.nb_segs;
+	unsigned int nseg = mbuf->nb_segs;
 	struct rte_mbuf* cur = mbuf;
 	unsigned int hdr_len;
 	unsigned long hdr_phys;
-	uint32_t len = mbuf->pkt.pkt_len;
+	uint32_t len = mbuf->pkt_len;
 
 	/* No need to send empty packets. */
 	if (len == 0) {
@@ -642,13 +640,13 @@ virtio_send_packet(struct virtio_net_vring* tq, struct rte_mbuf* mbuf)
 	tq->vr.desc[head].len = hdr_len;
 	tq->user[head] = NULL;
 
-	for (i = tq->vr.desc[head].next; nseg > 0; nseg--, cur = cur->pkt.next) {
-		if (!cur->pkt.data_len) {
+	for (i = tq->vr.desc[head].next; nseg > 0; nseg--, cur = cur->next) {
+		if (!cur->data_len) {
 			continue;
 		}
 		tq->vr.desc[i].flags = VRING_DESC_F_NEXT;
 		tq->vr.desc[i].addr = RTE_MBUF_DATA_DMA_ADDR(cur);
-		tq->vr.desc[i].len = cur->pkt.data_len;
+		tq->vr.desc[i].len = cur->data_len;
 		tq->user[i] = cur;
 		prev = i;
 		i = tq->vr.desc[i].next;
-- 
1.9.2