[dpdk-dev] librte_mbuf: modify the port initialization value
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Commit Message
In order to support more than 256 virtual ports, the field "port" in
rte_mbuf has been increased to 16 bits. The initialization/reset
value of the field "port" should be changed from 0xff to 0xffff
accordingly.
Signed-off-by: Zhiyong Yang <zhiyong.yang@intel.com>
---
lib/librte_mbuf/rte_mbuf.c | 2 +-
lib/librte_mbuf/rte_mbuf.h | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
Comments
On Mon, 4 Sep 2017 14:55:32 +0800
Zhiyong Yang <zhiyong.yang@intel.com> wrote:
> In order to support more than 256 virtual ports, the field "port" in
> rte_mbuf has been increased to 16 bits. The initialization/reset
> value of the field "port" should be changed from 0xff to 0xffff
> accordingly.
>
> Signed-off-by: Zhiyong Yang <zhiyong.yang@intel.com>
> ---
> lib/librte_mbuf/rte_mbuf.c | 2 +-
> lib/librte_mbuf/rte_mbuf.h | 2 +-
> 2 files changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/lib/librte_mbuf/rte_mbuf.c b/lib/librte_mbuf/rte_mbuf.c
> index 26a62b8e1..2e80ed9b1 100644
> --- a/lib/librte_mbuf/rte_mbuf.c
> +++ b/lib/librte_mbuf/rte_mbuf.c
> @@ -144,7 +144,7 @@ rte_pktmbuf_init(struct rte_mempool *mp,
> /* init some constant fields */
> m->pool = mp;
> m->nb_segs = 1;
> - m->port = 0xff;
> + m->port = 0xffff;
> rte_mbuf_refcnt_set(m, 1);
> m->next = NULL;
> }
> diff --git a/lib/librte_mbuf/rte_mbuf.h b/lib/librte_mbuf/rte_mbuf.h
> index eaed7eee0..cdc70aa83 100644
> --- a/lib/librte_mbuf/rte_mbuf.h
> +++ b/lib/librte_mbuf/rte_mbuf.h
> @@ -1095,7 +1095,7 @@ static inline void rte_pktmbuf_reset(struct rte_mbuf *m)
> m->vlan_tci = 0;
> m->vlan_tci_outer = 0;
> m->nb_segs = 1;
> - m->port = 0xff;
> + m->port = 0xffff;
>
> m->ol_flags = 0;
> m->packet_type = 0;
Maybe introduce MBUF_INVALID_PORT as a constant?
#define MBUF_INVALID_PORT 0xffff
Hi, Stephen:
> -----Original Message-----
> From: Stephen Hemminger [mailto:stephen@networkplumber.org]
> Sent: Tuesday, September 5, 2017 11:40 AM
> To: Yang, Zhiyong <zhiyong.yang@intel.com>
> Cc: dev@dpdk.org; thomas@monjalon.net; Yigit, Ferruh <ferruh.yigit@intel.com>
> Subject: Re: [dpdk-dev] [PATCH] librte_mbuf: modify the port initialization value
>
> > @@ -144,7 +144,7 @@ rte_pktmbuf_init(struct rte_mempool *mp,
> > /* init some constant fields */
> > m->pool = mp;
> > m->nb_segs = 1;
> > - m->port = 0xff;
> > + m->port = 0xffff;
> > rte_mbuf_refcnt_set(m, 1);
> > m->next = NULL;
> > }
> > diff --git a/lib/librte_mbuf/rte_mbuf.h b/lib/librte_mbuf/rte_mbuf.h
> > index eaed7eee0..cdc70aa83 100644
> > --- a/lib/librte_mbuf/rte_mbuf.h
> > +++ b/lib/librte_mbuf/rte_mbuf.h
> > @@ -1095,7 +1095,7 @@ static inline void rte_pktmbuf_reset(struct rte_mbuf
> *m)
> > m->vlan_tci = 0;
> > m->vlan_tci_outer = 0;
> > m->nb_segs = 1;
> > - m->port = 0xff;
> > + m->port = 0xffff;
> >
> > m->ol_flags = 0;
> > m->packet_type = 0;
>
> Maybe introduce MBUF_INVALID_PORT as a constant?
>
> #define MBUF_INVALID_PORT 0xffff
Make sense. Thanks for your suggestion.
Thanks
Zhiyong
@@ -144,7 +144,7 @@ rte_pktmbuf_init(struct rte_mempool *mp,
/* init some constant fields */
m->pool = mp;
m->nb_segs = 1;
- m->port = 0xff;
+ m->port = 0xffff;
rte_mbuf_refcnt_set(m, 1);
m->next = NULL;
}
@@ -1095,7 +1095,7 @@ static inline void rte_pktmbuf_reset(struct rte_mbuf *m)
m->vlan_tci = 0;
m->vlan_tci_outer = 0;
m->nb_segs = 1;
- m->port = 0xff;
+ m->port = 0xffff;
m->ol_flags = 0;
m->packet_type = 0;