From: Stephen Hemminger <stephen@networkplumber.org>
To: Thomas Monjalon <thomas@monjalon.net>
Cc: gaetan.rivet@6wind.com, Ferruh Yigit <ferruh.yigit@intel.com>,
Andrew Rybchenko <arybchenko@solarflare.com>,
dev@dpdk.org
Subject: Re: [dpdk-dev] [PATCH v3 1/4] ethdev: simplify port state comparisons
Date: Mon, 1 Apr 2019 07:58:51 -0700 [thread overview]
Message-ID: <20190401075851.4908488a@shemminger-XPS-13-9360> (raw)
Message-ID: <20190401145851.E6NH1P6jMhXmsE7L3hK1y1k3yph-LaPHBTvddEF1Zm0@z> (raw)
In-Reply-To: <20190401022700.1570-2-thomas@monjalon.net>
On Mon, 1 Apr 2019 04:26:57 +0200
Thomas Monjalon <thomas@monjalon.net> wrote:
> diff --git a/lib/librte_ethdev/rte_ethdev.c b/lib/librte_ethdev/rte_ethdev.c
> index 10bdfb37e..33cffc498 100644
> --- a/lib/librte_ethdev/rte_ethdev.c
> +++ b/lib/librte_ethdev/rte_ethdev.c
> @@ -330,8 +330,7 @@ uint16_t
> rte_eth_find_next(uint16_t port_id)
> {
> while (port_id < RTE_MAX_ETHPORTS &&
> - rte_eth_devices[port_id].state != RTE_ETH_DEV_ATTACHED &&
> - rte_eth_devices[port_id].state != RTE_ETH_DEV_REMOVED)
> + rte_eth_devices[port_id].state == RTE_ETH_DEV_UNUSED)
For some applications that iterate over ports this is a hot path.
What about keeping an unused port bit mask and using ffs (in the future)?
next prev parent reply other threads:[~2019-04-01 14:58 UTC|newest]
Thread overview: 70+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-11-30 0:27 [dpdk-dev] [PATCH] ethdev: add siblings iterator Thomas Monjalon
2018-12-11 16:31 ` Ferruh Yigit
2018-12-11 18:19 ` Thomas Monjalon
2019-02-20 22:10 ` [dpdk-dev] [PATCH v2 0/4] ethdev iterators for multi-ports device Thomas Monjalon
2019-02-20 22:10 ` [dpdk-dev] [PATCH v2 1/4] ethdev: simplify port state comparisons Thomas Monjalon
2019-02-24 17:18 ` Andrew Rybchenko
2019-02-20 22:10 ` [dpdk-dev] [PATCH v2 2/4] ethdev: add siblings iterators Thomas Monjalon
2019-02-24 17:22 ` Andrew Rybchenko
2019-02-27 10:07 ` Gaëtan Rivet
2019-02-27 10:51 ` Thomas Monjalon
2019-04-01 1:59 ` Thomas Monjalon
2019-04-01 1:59 ` Thomas Monjalon
2019-03-19 15:47 ` Ferruh Yigit
2019-03-19 15:47 ` Ferruh Yigit
2019-03-19 17:34 ` Thomas Monjalon
2019-03-19 17:34 ` Thomas Monjalon
2019-03-19 18:04 ` Ferruh Yigit
2019-03-19 18:04 ` Ferruh Yigit
2019-04-01 2:16 ` Thomas Monjalon
2019-04-01 2:16 ` Thomas Monjalon
2019-04-01 6:46 ` David Marchand
2019-04-01 6:46 ` David Marchand
2019-04-01 8:09 ` Thomas Monjalon
2019-04-01 8:09 ` Thomas Monjalon
2019-04-02 23:35 ` Ferruh Yigit
2019-04-02 23:35 ` Ferruh Yigit
2019-04-02 23:37 ` Thomas Monjalon
2019-04-02 23:37 ` Thomas Monjalon
2019-02-20 22:10 ` [dpdk-dev] [PATCH v2 3/4] net/mlx5: use port sibling iterators Thomas Monjalon
2019-02-20 22:10 ` [dpdk-dev] [PATCH v2 4/4] app/testpmd: use port sibling iterator in device cleanup Thomas Monjalon
2019-04-01 2:26 ` [dpdk-dev] [PATCH v3 0/4] ethdev iterators for multi-ports device Thomas Monjalon
2019-04-01 2:26 ` Thomas Monjalon
2019-04-01 2:26 ` [dpdk-dev] [PATCH v3 1/4] ethdev: simplify port state comparisons Thomas Monjalon
2019-04-01 2:26 ` Thomas Monjalon
2019-04-01 14:58 ` Stephen Hemminger [this message]
2019-04-01 14:58 ` Stephen Hemminger
2019-04-01 15:17 ` Thomas Monjalon
2019-04-01 15:17 ` Thomas Monjalon
2019-04-01 16:07 ` Stephen Hemminger
2019-04-01 16:07 ` Stephen Hemminger
2019-04-03 15:03 ` Slava Ovsiienko
2019-04-03 15:03 ` Slava Ovsiienko
2019-04-01 2:26 ` [dpdk-dev] [PATCH v3 2/4] ethdev: add siblings iterators Thomas Monjalon
2019-04-01 2:26 ` Thomas Monjalon
2019-04-01 7:23 ` Andrew Rybchenko
2019-04-01 7:23 ` Andrew Rybchenko
2019-04-02 23:42 ` Ferruh Yigit
2019-04-02 23:42 ` Ferruh Yigit
2019-04-02 23:48 ` Thomas Monjalon
2019-04-02 23:48 ` Thomas Monjalon
2019-04-03 15:03 ` Slava Ovsiienko
2019-04-03 15:03 ` Slava Ovsiienko
2019-04-01 2:26 ` [dpdk-dev] [PATCH v3 3/4] net/mlx5: use port sibling iterators Thomas Monjalon
2019-04-01 2:26 ` Thomas Monjalon
2019-04-03 14:19 ` Ferruh Yigit
2019-04-03 14:19 ` Ferruh Yigit
2019-04-03 18:07 ` Yongseok Koh
2019-04-03 18:07 ` Yongseok Koh
2019-04-04 11:33 ` Ferruh Yigit
2019-04-04 11:33 ` Ferruh Yigit
2019-04-03 15:04 ` Slava Ovsiienko
2019-04-03 15:04 ` Slava Ovsiienko
2019-04-01 2:27 ` [dpdk-dev] [PATCH v3 4/4] app/testpmd: use port sibling iterator in device cleanup Thomas Monjalon
2019-04-01 2:27 ` Thomas Monjalon
2019-04-02 23:43 ` Ferruh Yigit
2019-04-02 23:43 ` Ferruh Yigit
2019-04-03 15:04 ` Slava Ovsiienko
2019-04-03 15:04 ` Slava Ovsiienko
2019-04-03 16:42 ` [dpdk-dev] [PATCH v3 0/4] ethdev iterators for multi-ports device Ferruh Yigit
2019-04-03 16:42 ` Ferruh Yigit
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