From: Andrew Rybchenko <arybchenko@solarflare.com>
To: David Marchand <david.marchand@redhat.com>, <dev@dpdk.org>
Cc: Ray Kinsella <mdr@ashroe.eu>, Neil Horman <nhorman@tuxdriver.com>,
"Olivier Matz" <olivier.matz@6wind.com>
Subject: Re: [dpdk-dev] [PATCH 8/8] mbuf: remove seqn field
Date: Wed, 28 Oct 2020 13:27:44 +0300 [thread overview]
Message-ID: <507d2ebc-a37d-3fd1-d55d-6133acfe3845@solarflare.com> (raw)
In-Reply-To: <20201027221343.28551-9-david.marchand@redhat.com>
On 10/28/20 1:13 AM, David Marchand wrote:
> As announced in the deprecation note, the field seqn is removed to give
> more space to the dynamic fields.
>
> This is how the mbuf layout looks like (pahole-style):
>
> word type name byte size
> 0 void * buf_addr; /* 0 + 8 */
> 1 rte_iova_t buf_iova /* 8 + 8 */
> /* --- RTE_MARKER64 rearm_data; */
> 2 uint16_t data_off; /* 16 + 2 */
> uint16_t refcnt; /* 18 + 2 */
> uint16_t nb_segs; /* 20 + 2 */
> uint16_t port; /* 22 + 2 */
> 3 uint64_t ol_flags; /* 24 + 8 */
> /* --- RTE_MARKER rx_descriptor_fields1; */
> 4 uint32_t union packet_type; /* 32 + 4 */
> uint32_t pkt_len; /* 36 + 4 */
> 5 uint16_t data_len; /* 40 + 2 */
> uint16_t vlan_tci; /* 42 + 2 */
> 5.5 uint64_t union hash; /* 44 + 8 */
> 6.5 uint16_t vlan_tci_outer; /* 52 + 2 */
> uint16_t buf_len; /* 54 + 2 */
> 7 uint64_t timestamp; /* 56 + 8 */
> /* --- RTE_MARKER cacheline1; */
> 8 struct rte_mempool * pool; /* 64 + 8 */
> 9 struct rte_mbuf * next; /* 72 + 8 */
> 10 uint64_t union tx_offload; /* 80 + 8 */
> 11 struct rte_mbuf_ext_shared_info * shinfo; /* 88 + 8 */
> 12 uint16_t priv_size; /* 96 + 2 */
> uint16_t timesync; /* 98 + 2 */
> 12.5 uint32_t dynfield1[7]; /* 100 + 28 */
> 16 /* --- END 128 */
>
> Signed-off-by: David Marchand <david.marchand@redhat.com>
Reviewed-by: Andrew Rybchenko <andrew.rybchenko@oktetlabs.ru>
next prev parent reply other threads:[~2020-10-28 10:32 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-10-27 22:13 [dpdk-dev] [PATCH 0/8] remove mbuf seqn David Marchand
2020-10-27 22:13 ` [dpdk-dev] [PATCH 1/8] event/dpaa2: remove dead code David Marchand
2020-10-27 22:13 ` [dpdk-dev] [PATCH 2/8] crypto/scheduler: remove unused internal seqn David Marchand
2020-10-27 22:13 ` [dpdk-dev] [PATCH 3/8] net/ark: remove use of seqn for debug David Marchand
2020-10-28 12:19 ` Ed Czeck
2020-10-27 22:13 ` [dpdk-dev] [PATCH 4/8] reorder: switch sequence number to dynamic mbuf field David Marchand
2020-10-27 22:13 ` [dpdk-dev] [PATCH 5/8] dpaa: switch sequence number to dynamic field David Marchand
2020-10-27 22:13 ` [dpdk-dev] [PATCH 6/8] fslmc: " David Marchand
2020-10-27 22:13 ` [dpdk-dev] [PATCH 7/8] event: " David Marchand
2020-10-27 22:18 ` David Marchand
2020-10-28 7:27 ` Jerin Jacob
2020-10-28 8:55 ` David Marchand
2020-10-28 9:09 ` Jerin Jacob
2020-10-27 22:13 ` [dpdk-dev] [PATCH 8/8] mbuf: remove seqn field David Marchand
2020-10-28 10:27 ` Andrew Rybchenko [this message]
2020-10-28 12:20 ` [dpdk-dev] [PATCH v2 0/9] remove mbuf seqn David Marchand
2020-10-28 12:20 ` [dpdk-dev] [PATCH v2 1/9] event/dpaa2: remove dead code David Marchand
2020-10-31 18:28 ` Nipun Gupta
2020-10-28 12:20 ` [dpdk-dev] [PATCH v2 2/9] crypto/scheduler: remove unused internal seqn David Marchand
2020-10-28 12:20 ` [dpdk-dev] [PATCH v2 3/9] net/ark: remove use of seqn for debug David Marchand
2020-10-28 12:20 ` [dpdk-dev] [PATCH v2 4/9] reorder: switch sequence number to dynamic mbuf field David Marchand
2020-10-28 12:54 ` Andrew Rybchenko
2020-10-28 12:20 ` [dpdk-dev] [PATCH v2 5/9] dpaa: " David Marchand
2020-10-28 12:20 ` [dpdk-dev] [PATCH v2 6/9] fslmc: " David Marchand
2020-10-28 12:20 ` [dpdk-dev] [PATCH v2 7/9] eventdev: " David Marchand
2020-10-28 12:20 ` [dpdk-dev] [PATCH v2 8/9] app/eventdev: " David Marchand
2020-10-28 12:20 ` [dpdk-dev] [PATCH v2 9/9] mbuf: remove seqn field David Marchand
2020-10-31 21:09 ` Thomas Monjalon
2020-10-31 21:11 ` [dpdk-dev] [PATCH v2 0/9] remove mbuf seqn Thomas Monjalon
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