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From: Olivier MATZ <olivier.matz@6wind.com>
To: Helin Zhang <helin.zhang@intel.com>, dev@dpdk.org
Subject: Re: [dpdk-dev] [PATCH 2/5] mbuf: use the reserved 16 bits for double vlan
Date: Mon, 01 Jun 2015 10:50:29 +0200	[thread overview]
Message-ID: <556C1CD5.9020108@6wind.com> (raw)
In-Reply-To: <1432629400-25303-3-git-send-email-helin.zhang@intel.com>

Hi Helin,

On 05/26/2015 10:36 AM, Helin Zhang wrote:
> Use the reserved 16 bits in rte_mbuf structure for the outer vlan,
> also add QinQ offloading flags for both RX and TX sides.
> 
> Signed-off-by: Helin Zhang <helin.zhang@intel.com>
> ---
>  lib/librte_mbuf/rte_mbuf.h | 10 +++++++++-
>  1 file changed, 9 insertions(+), 1 deletion(-)
> 
> diff --git a/lib/librte_mbuf/rte_mbuf.h b/lib/librte_mbuf/rte_mbuf.h
> index ab6de67..4551df9 100644
> --- a/lib/librte_mbuf/rte_mbuf.h
> +++ b/lib/librte_mbuf/rte_mbuf.h
> @@ -101,11 +101,17 @@ extern "C" {
>  #define PKT_RX_TUNNEL_IPV6_HDR (1ULL << 12) /**< RX tunnel packet with IPv6 header. */
>  #define PKT_RX_FDIR_ID       (1ULL << 13) /**< FD id reported if FDIR match. */
>  #define PKT_RX_FDIR_FLX      (1ULL << 14) /**< Flexible bytes reported if FDIR match. */
> +#define PKT_RX_QINQ_PKT     (1ULL << 15)  /**< RX packet with double VLAN stripped. */
>  /* add new RX flags here */

There's a small indent typo here: (1ULL << 15) is not aligned
with the lines above


>  
>  /* add new TX flags here */
>  
>  /**
> + * Second VLAN insertion (QinQ) flag.
> + */
> +#define PKT_TX_QINQ_PKT    (1ULL << 49)   /**< TX packet with double VLAN inserted. */
> +
> +/**
>   * TCP segmentation offload. To enable this offload feature for a
>   * packet to be transmitted on hardware supporting TSO:
>   *  - set the PKT_TX_TCP_SEG flag in mbuf->ol_flags (this flag implies
> @@ -279,7 +285,7 @@ struct rte_mbuf {
>  	uint16_t data_len;        /**< Amount of data in segment buffer. */
>  	uint32_t pkt_len;         /**< Total pkt len: sum of all segments. */
>  	uint16_t vlan_tci;        /**< VLAN Tag Control Identifier (CPU order) */
> -	uint16_t reserved;
> +	uint16_t vlan_tci_outer;  /**< Outer VLAN Tag Control Identifier (CPU order) */
>  	union {
>  		uint32_t rss;     /**< RSS hash result if RSS enabled */
>  		struct {
> @@ -777,6 +783,7 @@ static inline void rte_pktmbuf_reset(struct rte_mbuf *m)
>  	m->pkt_len = 0;
>  	m->tx_offload = 0;
>  	m->vlan_tci = 0;
> +	m->vlan_tci_outer = 0;
>  	m->nb_segs = 1;
>  	m->port = 0xff;
>  
> @@ -849,6 +856,7 @@ static inline void rte_pktmbuf_attach(struct rte_mbuf *mi, struct rte_mbuf *m)
>  	mi->data_len = m->data_len;
>  	mi->port = m->port;
>  	mi->vlan_tci = m->vlan_tci;
> +	mi->vlan_tci_outer = m->vlan_tci_outer;
>  	mi->tx_offload = m->tx_offload;
>  	mi->hash = m->hash;
>  
> 

Maybe some more affectations are missing. For instance in
examples/ipv4_multicast/main.c or in examples/vhost/main.c.
You can grep "->vlan_tci =" to find them all.

Do we need to update rte_vlan_insert() and rte_vlan_strip() to
support QinQ?

Regards,
Olivier

  parent reply	other threads:[~2015-06-01  8:50 UTC|newest]

Thread overview: 55+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-05-05  2:32 [dpdk-dev] [PATCH RFC 0/6] support of QinQ stripping and insertion of i40e Helin Zhang
2015-05-05  2:32 ` [dpdk-dev] [PATCH RFC 1/6] mbuf: update mbuf structure for QinQ support Helin Zhang
2015-05-05 11:04   ` Ananyev, Konstantin
2015-05-05 15:42     ` Chilikin, Andrey
2015-05-05 22:37       ` Ananyev, Konstantin
2015-05-06  4:07         ` Zhang, Helin
2015-05-06  4:06     ` Zhang, Helin
2015-05-06  8:39       ` Bruce Richardson
2015-05-06  8:48         ` Zhang, Helin
2015-05-05  2:32 ` [dpdk-dev] [PATCH RFC 2/6] i40e: reconfigure the hardware to support QinQ stripping/insertion Helin Zhang
2015-05-05  2:32 ` [dpdk-dev] [PATCH RFC 3/6] i40e: support of QinQ stripping/insertion in RX/TX Helin Zhang
2015-05-05  2:32 ` [dpdk-dev] [PATCH RFC 4/6] ethdev: add QinQ offload capability flags Helin Zhang
2015-05-05  2:32 ` [dpdk-dev] [PATCH RFC 5/6] i40e: update of " Helin Zhang
2015-05-05  2:32 ` [dpdk-dev] [PATCH RFC 6/6] app/testpmd: support of QinQ stripping and insertion Helin Zhang
2015-05-26  8:36 ` [dpdk-dev] [PATCH 0/5] support i40e " Helin Zhang
2015-05-26  8:36   ` [dpdk-dev] [PATCH 1/5] ixgbe: remove a discarded source line Helin Zhang
2015-06-01  8:50     ` Olivier MATZ
2015-06-02  1:45       ` Zhang, Helin
2015-05-26  8:36   ` [dpdk-dev] [PATCH 2/5] mbuf: use the reserved 16 bits for double vlan Helin Zhang
2015-05-26 14:55     ` Stephen Hemminger
2015-05-26 15:00       ` Zhang, Helin
2015-05-26 15:02       ` Ananyev, Konstantin
2015-05-26 15:35         ` Stephen Hemminger
2015-05-26 15:46           ` Ananyev, Konstantin
2015-05-27  1:07             ` Zhang, Helin
2015-06-01  8:50     ` Olivier MATZ [this message]
2015-06-02  2:37       ` Zhang, Helin
2015-05-26  8:36   ` [dpdk-dev] [PATCH 3/5] i40e: support double vlan stripping and insertion Helin Zhang
2015-06-01  8:50     ` Olivier MATZ
2015-06-02  2:45       ` Zhang, Helin
2015-05-26  8:36   ` [dpdk-dev] [PATCH 4/5] i40evf: add supported offload capability flags Helin Zhang
2015-05-26  8:36   ` [dpdk-dev] [PATCH 5/5] app/testpmd: add test cases for qinq stripping and insertion Helin Zhang
2015-06-02  3:16   ` [dpdk-dev] [PATCH v2 0/6] support i40e QinQ " Helin Zhang
2015-06-02  3:16     ` [dpdk-dev] [PATCH v2 1/6] ixgbe: remove a discarded source line Helin Zhang
2015-06-02  3:16     ` [dpdk-dev] [PATCH v2 2/6] mbuf: use the reserved 16 bits for double vlan Helin Zhang
2015-06-02  3:16     ` [dpdk-dev] [PATCH v2 3/6] i40e: support double vlan stripping and insertion Helin Zhang
2015-06-02  3:16     ` [dpdk-dev] [PATCH v2 4/6] i40evf: add supported offload capability flags Helin Zhang
2015-06-02  3:16     ` [dpdk-dev] [PATCH v2 5/6] app/testpmd: add test cases for qinq stripping and insertion Helin Zhang
2015-06-02  3:16     ` [dpdk-dev] [PATCH v2 6/6] examples/ipv4_multicast: support double vlan " Helin Zhang
2015-06-02  7:37     ` [dpdk-dev] [PATCH v2 0/6] support i40e QinQ " Liu, Jijiang
2015-06-08  7:32       ` Cao, Min
2015-06-08  7:40     ` Olivier MATZ
2015-06-11  7:03     ` [dpdk-dev] [PATCH v3 0/7] " Helin Zhang
2015-06-11  7:03       ` [dpdk-dev] [PATCH v3 1/7] ixgbe: remove a discarded source line Helin Zhang
2015-06-11  7:03       ` [dpdk-dev] [PATCH v3 2/7] mbuf: use the reserved 16 bits for double vlan Helin Zhang
2015-06-25  8:31         ` Zhang, Helin
2015-06-28 20:36           ` Thomas Monjalon
2015-06-30  7:33             ` Olivier MATZ
2015-06-11  7:03       ` [dpdk-dev] [PATCH v3 3/7] i40e: support double vlan stripping and insertion Helin Zhang
2015-06-11  7:03       ` [dpdk-dev] [PATCH v3 4/7] i40evf: add supported offload capability flags Helin Zhang
2015-06-11  7:03       ` [dpdk-dev] [PATCH v3 5/7] app/testpmd: add test cases for qinq stripping and insertion Helin Zhang
2015-06-11  7:03       ` [dpdk-dev] [PATCH v3 6/7] examples/ipv4_multicast: support double vlan " Helin Zhang
2015-06-11  7:04       ` [dpdk-dev] [PATCH v3 7/7] doc: update testpmd command Helin Zhang
2015-06-11  7:25       ` [dpdk-dev] [PATCH v3 0/7] support i40e QinQ stripping and insertion Wu, Jingjing
2015-07-07 14:43         ` Thomas Monjalon

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