net: thunderx: Add support for xdp redirect
This patch adds support for XDP_REDIRECT. Flush is not
yet supported.
Signed-off-by: Sunil Goutham <sgoutham@cavium.com>
Signed-off-by: cjacob <cjacob@caviumnetworks.com>
Signed-off-by: Aleksey Makarov <aleksey.makarov@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/ethernet/cavium/thunder/nicvf_queues.c b/drivers/net/ethernet/cavium/thunder/nicvf_queues.c
index 8b2c31e..095c18a 100644
--- a/drivers/net/ethernet/cavium/thunder/nicvf_queues.c
+++ b/drivers/net/ethernet/cavium/thunder/nicvf_queues.c
@@ -204,7 +204,7 @@ static inline int nicvf_alloc_rcv_buffer(struct nicvf *nic, struct rbdr *rbdr,
/* Reserve space for header modifications by BPF program */
if (rbdr->is_xdp)
- buf_len += XDP_PACKET_HEADROOM;
+ buf_len += XDP_HEADROOM;
/* Check if it's recycled */
if (pgcache)
@@ -224,8 +224,9 @@ static inline int nicvf_alloc_rcv_buffer(struct nicvf *nic, struct rbdr *rbdr,
nic->rb_page = NULL;
return -ENOMEM;
}
+
if (pgcache)
- pgcache->dma_addr = *rbuf + XDP_PACKET_HEADROOM;
+ pgcache->dma_addr = *rbuf + XDP_HEADROOM;
nic->rb_page_offset += buf_len;
}
@@ -1236,7 +1237,7 @@ int nicvf_xdp_sq_append_pkt(struct nicvf *nic, struct snd_queue *sq,
int qentry;
if (subdesc_cnt > sq->xdp_free_cnt)
- return 0;
+ return -1;
qentry = nicvf_get_sq_desc(sq, subdesc_cnt);
@@ -1247,7 +1248,7 @@ int nicvf_xdp_sq_append_pkt(struct nicvf *nic, struct snd_queue *sq,
sq->xdp_desc_cnt += subdesc_cnt;
- return 1;
+ return 0;
}
/* Calculate no of SQ subdescriptors needed to transmit all
@@ -1623,7 +1624,7 @@ static void nicvf_unmap_rcv_buffer(struct nicvf *nic, u64 dma_addr,
if (page_ref_count(page) != 1)
return;
- len += XDP_PACKET_HEADROOM;
+ len += XDP_HEADROOM;
/* Receive buffers in XDP mode are mapped from page start */
dma_addr &= PAGE_MASK;
}