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From: Olivier Matz <olivier.matz@6wind.com>
To: Viacheslav Ovsiienko <viacheslavo@mellanox.com>
Cc: dev@dpdk.org, matan@mellanox.com, rasland@mellanox.com,
	orika@mellanox.com, shahafs@mellanox.com,
	stephen@networkplumber.org, thomas@mellanox.net
Subject: Re: [dpdk-dev] [PATCH v5 2/5] mbuf: detach mbuf with pinned external buffer
Date: Mon, 20 Jan 2020 18:40:37 +0100	[thread overview]
Message-ID: <20200120174037.GD22738@platinum> (raw)
In-Reply-To: <1579541003-2399-3-git-send-email-viacheslavo@mellanox.com>

On Mon, Jan 20, 2020 at 05:23:20PM +0000, Viacheslav Ovsiienko wrote:
> Update detach routine to check the mbuf pool type.
> Introduce the special internal version of detach routine to handle
> the special case of pinned external bufferon mbuf freeing.
> 
> Signed-off-by: Shahaf Shuler <shahafs@mellanox.com>
> Signed-off-by: Viacheslav Ovsiienko <viacheslavo@mellanox.com>

[...]

In case there is a new version, can you please add some newlines:

> +static inline int __rte_pktmbuf_pinned_extbuf_decref(struct rte_mbuf *m)
> +{
> +	struct rte_mbuf_ext_shared_info *shinfo;
> +
> +	/* Clear flags, mbuf is being freed. */
> +	m->ol_flags = EXT_ATTACHED_MBUF;
> +	shinfo = m->shinfo;

here

> +	/* Optimize for performance - do not dec/reinit */
> +	if (likely(rte_mbuf_ext_refcnt_read(shinfo) == 1))
> +		return 0;

here

> +	/*
> +	 * Direct usage of add primitive to avoid
> +	 * duplication of comparing with one.
> +	 */
> +	if (likely(rte_atomic16_add_return
> +			(&shinfo->refcnt_atomic, -1)))
> +		return 1;

here

> +	/* Reinitialize counter before mbuf freeing. */
> +	rte_mbuf_ext_refcnt_set(shinfo, 1);
> +	return 0;
> +}
> +
> +/**
>   * Decrease reference counter and unlink a mbuf segment
>   *
>   * This function does the same than a free, except that it does not

Apart from this,
Acked-by: Olivier Matz <olivier.matz@6wind.com>

  reply	other threads:[~2020-01-20 17:40 UTC|newest]

Thread overview: 77+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-11-18  9:50 [dpdk-dev] [RFC v20.20] mbuf: introduce pktmbuf pool with pinned external buffers Shahaf Shuler
2019-11-18 16:09 ` Stephen Hemminger
2020-01-10 17:56 ` [dpdk-dev] [PATCH 0/4] " Viacheslav Ovsiienko
2020-01-10 17:56   ` [dpdk-dev] [PATCH 1/4] mbuf: detach mbuf with pinned external buffer Viacheslav Ovsiienko
2020-01-10 18:23     ` Stephen Hemminger
2020-01-13 17:07       ` Slava Ovsiienko
2020-01-14  7:19       ` Slava Ovsiienko
2020-01-10 17:57   ` [dpdk-dev] [PATCH 2/4] mbuf: create packet pool with external memory buffers Viacheslav Ovsiienko
2020-01-10 17:57   ` [dpdk-dev] [PATCH 3/4] app/testpmd: add mempool with external data buffers Viacheslav Ovsiienko
2020-01-10 17:57   ` [dpdk-dev] [PATCH 4/4] net/mlx5: allow use allocated mbuf with external buffer Viacheslav Ovsiienko
2020-01-14  7:49 ` [dpdk-dev] [PATCH v2 0/4] mbuf: introduce pktmbuf pool with pinned external buffers Viacheslav Ovsiienko
2020-01-14  7:49   ` [dpdk-dev] [PATCH v2 1/4] mbuf: detach mbuf with pinned external buffer Viacheslav Ovsiienko
2020-01-14  7:49   ` [dpdk-dev] [PATCH v2 2/4] mbuf: create packet pool with external memory buffers Viacheslav Ovsiienko
2020-01-14  7:49   ` [dpdk-dev] [PATCH v2 3/4] app/testpmd: add mempool with external data buffers Viacheslav Ovsiienko
2020-01-14  7:49   ` [dpdk-dev] [PATCH v2 4/4] net/mlx5: allow use allocated mbuf with external buffer Viacheslav Ovsiienko
2020-01-14  9:15 ` [dpdk-dev] [PATCH v3 0/4] mbuf: detach mbuf with pinned " Viacheslav Ovsiienko
2020-01-14  9:15   ` [dpdk-dev] [PATCH v3 1/4] " Viacheslav Ovsiienko
2020-01-14 15:27     ` Olivier Matz
2020-01-15 12:52       ` Slava Ovsiienko
2020-01-14 15:50     ` Stephen Hemminger
2020-01-14  9:15   ` [dpdk-dev] [PATCH v3 2/4] mbuf: create packet pool with external memory buffers Viacheslav Ovsiienko
2020-01-14 16:04     ` Olivier Matz
2020-01-15 18:13       ` Slava Ovsiienko
2020-01-14  9:15   ` [dpdk-dev] [PATCH v3 3/4] app/testpmd: add mempool with external data buffers Viacheslav Ovsiienko
2020-01-14  9:15   ` [dpdk-dev] [PATCH v3 4/4] net/mlx5: allow use allocated mbuf with external buffer Viacheslav Ovsiienko
2020-01-16 13:04 ` [dpdk-dev] [PATCH v4 0/5] mbuf: detach mbuf with pinned " Viacheslav Ovsiienko
2020-01-16 13:04   ` [dpdk-dev] [PATCH v4 1/5] mbuf: introduce routine to get private mbuf pool flags Viacheslav Ovsiienko
2020-01-20 12:16     ` Olivier Matz
2020-01-16 13:04   ` [dpdk-dev] [PATCH v4 2/5] mbuf: detach mbuf with pinned external buffer Viacheslav Ovsiienko
2020-01-20 13:56     ` Olivier Matz
2020-01-20 15:41       ` Slava Ovsiienko
2020-01-20 16:17         ` Olivier Matz
2020-01-16 13:04   ` [dpdk-dev] [PATCH v4 3/5] mbuf: create packet pool with external memory buffers Viacheslav Ovsiienko
2020-01-20 13:59     ` Olivier Matz
2020-01-20 17:33       ` Slava Ovsiienko
2020-01-16 13:04   ` [dpdk-dev] [PATCH v4 4/5] app/testpmd: add mempool with external data buffers Viacheslav Ovsiienko
2020-01-20 14:11     ` Olivier Matz
2020-01-16 13:04   ` [dpdk-dev] [PATCH v4 5/5] net/mlx5: allow use allocated mbuf with external buffer Viacheslav Ovsiienko
2020-01-20 17:23 ` [dpdk-dev] [PATCH v5 0/5] mbuf: detach mbuf with pinned " Viacheslav Ovsiienko
2020-01-20 17:23   ` [dpdk-dev] [PATCH v5 1/5] mbuf: introduce routine to get private mbuf pool flags Viacheslav Ovsiienko
2020-01-20 20:43     ` Stephen Hemminger
2020-01-20 22:52       ` Thomas Monjalon
2020-01-21  6:48       ` Slava Ovsiienko
2020-01-21  8:00       ` Slava Ovsiienko
2020-01-21  8:14         ` Olivier Matz
2020-01-21  8:23           ` Slava Ovsiienko
2020-01-21  9:13             ` Slava Ovsiienko
2020-01-21 14:01               ` Olivier Matz
2020-01-21 16:21                 ` Stephen Hemminger
2020-01-20 17:23   ` [dpdk-dev] [PATCH v5 2/5] mbuf: detach mbuf with pinned external buffer Viacheslav Ovsiienko
2020-01-20 17:40     ` Olivier Matz [this message]
2020-01-20 17:23   ` [dpdk-dev] [PATCH v5 3/5] mbuf: create packet pool with external memory buffers Viacheslav Ovsiienko
2020-01-20 17:46     ` Olivier Matz
2020-01-20 17:23   ` [dpdk-dev] [PATCH v5 4/5] app/testpmd: add mempool with external data buffers Viacheslav Ovsiienko
2020-01-20 17:23   ` [dpdk-dev] [PATCH v5 5/5] net/mlx5: allow use allocated mbuf with external buffer Viacheslav Ovsiienko
2020-01-20 17:30   ` [dpdk-dev] [PATCH v5 0/5] mbuf: detach mbuf with pinned " Slava Ovsiienko
2020-01-20 17:41     ` Olivier Matz
2020-01-20 19:16 ` [dpdk-dev] [PATCH v6 " Viacheslav Ovsiienko
2020-01-20 19:16   ` [dpdk-dev] [PATCH v6 1/5] mbuf: introduce routine to get private mbuf pool flags Viacheslav Ovsiienko
2020-01-20 19:16   ` [dpdk-dev] [PATCH v6 2/5] mbuf: detach mbuf with pinned external buffer Viacheslav Ovsiienko
2023-12-06 10:55     ` [dpdk-dev] [PATCH v6 2/5] mbuf: detach mbuf with pinned externalbuffer Morten Brørup
2020-01-20 19:16   ` [dpdk-dev] [PATCH v6 3/5] mbuf: create packet pool with external memory buffers Viacheslav Ovsiienko
2020-01-20 20:48     ` Stephen Hemminger
2020-01-21  7:04       ` Slava Ovsiienko
2020-01-20 19:16   ` [dpdk-dev] [PATCH v6 4/5] app/testpmd: add mempool with external data buffers Viacheslav Ovsiienko
2020-01-20 19:16   ` [dpdk-dev] [PATCH v6 5/5] net/mlx5: allow use allocated mbuf with external buffer Viacheslav Ovsiienko
2020-01-20 22:55   ` [dpdk-dev] [PATCH v6 0/5] mbuf: detach mbuf with pinned " Thomas Monjalon
2020-01-22  8:50 ` [dpdk-dev] [PATCH] mbuf: fix pinned memory free routine style issue Viacheslav Ovsiienko
2020-02-06  9:46   ` Olivier Matz
2020-02-06 14:26     ` Thomas Monjalon
2020-01-24 20:25 ` [dpdk-dev] [PATCH] app/test: add test for mbuf with pinned external buffer Viacheslav Ovsiienko
2020-01-26 10:53   ` Slava Ovsiienko
2020-02-06  8:17   ` Olivier Matz
2020-02-06  8:24     ` Slava Ovsiienko
2020-02-06  9:51       ` Slava Ovsiienko
2020-02-06  9:49   ` [dpdk-dev] [PATCH v2] " Viacheslav Ovsiienko
2020-02-06 14:43     ` Thomas Monjalon

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