From: Declan Doherty Date: Wed, 25 Nov 2015 13:25:11 +0000 (+0000) Subject: mbuf: get physical address of data X-Git-Tag: spdx-start~7955 X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=0781e8a7ac52863e970ec84abd3e1f95720a5105;p=dpdk.git mbuf: get physical address of data Signed-off-by: Declan Doherty Acked-by: Sergio Gonzalez Monroy --- diff --git a/lib/librte_mbuf/rte_mbuf.h b/lib/librte_mbuf/rte_mbuf.h index 08717a26be..def2e33571 100644 --- a/lib/librte_mbuf/rte_mbuf.h +++ b/lib/librte_mbuf/rte_mbuf.h @@ -1624,6 +1624,27 @@ static inline struct rte_mbuf *rte_pktmbuf_lastseg(struct rte_mbuf *m) */ #define rte_pktmbuf_mtod(m, t) rte_pktmbuf_mtod_offset(m, t, 0) +/** + * A macro that returns the physical address that points to an offset of the + * start of the data in the mbuf + * + * @param m + * The packet mbuf. + * @param o + * The offset into the data to calculate address from. + */ +#define rte_pktmbuf_mtophys_offset(m, o) \ + (phys_addr_t)((m)->buf_physaddr + (m)->data_off + (o)) + +/** + * A macro that returns the physical address that points to the start of the + * data in the mbuf + * + * @param m + * The packet mbuf. + */ +#define rte_pktmbuf_mtophys(m) rte_pktmbuf_mtophys_offset(m, 0) + /** * A macro that returns the length of the packet. *