From: Andrew Rybchenko <arybchenko@solarflare.com>
To: Gaetan Rivet <gaetan.rivet@6wind.com>, <dev@dpdk.org>
Subject: Re: [dpdk-dev] [PATCH v1 05/13] ethdev: add private generic device iterator
Date: Fri, 31 Aug 2018 13:09:34 +0300 [thread overview]
Message-ID: <378e2116-4682-1ff8-8dba-1562bc1e2530@solarflare.com> (raw)
In-Reply-To: <e42237129b4191c629a711cf6081b1045bc83986.1535633784.git.gaetan.rivet@6wind.com>
On 08/30/2018 04:41 PM, Gaetan Rivet wrote:
> This iterator can be customized with a comparison function that will
> trigger a stopping condition.
>
> It can be leveraged to write several different iterators that have
> similar but non-identical purposes.
>
> It is private to librte_ethdev.
>
> Signed-off-by: Gaetan Rivet <gaetan.rivet@6wind.com>
> ---
> lib/librte_ethdev/Makefile | 1 +
> lib/librte_ethdev/eth_private.c | 31 +++++++++++++++++++++++++++++++
> lib/librte_ethdev/eth_private.h | 26 ++++++++++++++++++++++++++
> lib/librte_ethdev/meson.build | 3 ++-
> 4 files changed, 60 insertions(+), 1 deletion(-)
> create mode 100644 lib/librte_ethdev/eth_private.c
> create mode 100644 lib/librte_ethdev/eth_private.h
>
> diff --git a/lib/librte_ethdev/Makefile b/lib/librte_ethdev/Makefile
> index 0935a275e..3c1c92cb9 100644
> --- a/lib/librte_ethdev/Makefile
> +++ b/lib/librte_ethdev/Makefile
> @@ -18,6 +18,7 @@ EXPORT_MAP := rte_ethdev_version.map
>
> LIBABIVER := 10
>
> +SRCS-y += eth_private.c
> SRCS-y += rte_ethdev.c
> SRCS-y += rte_flow.c
> SRCS-y += rte_tm.c
> diff --git a/lib/librte_ethdev/eth_private.c b/lib/librte_ethdev/eth_private.c
> new file mode 100644
> index 000000000..d565568a0
> --- /dev/null
> +++ b/lib/librte_ethdev/eth_private.c
Just a nit
I think it is better to name it ethdev_private.c since we already
have ethdev_profile.[ch] and it is about ethdev, not Ethernet.
> @@ -0,0 +1,31 @@
> +/* SPDX-License-Identifier: BSD-3-Clause
> + * Copyright(c) 2018 Gaëtan Rivet
> + */
> +
> +#include "rte_ethdev.h"
> +#include "eth_private.h"
> +
> +struct rte_eth_dev *
> +eth_find_device(const struct rte_eth_dev *start, rte_eth_cmp_t cmp,
> + const void *data)
> +{
> + struct rte_eth_dev *edev;
> + ptrdiff_t idx;
> +
> + /* Avoid Undefined Behaviour */
> + if (start != NULL &&
> + (start < &rte_eth_devices[0] ||
> + start > &rte_eth_devices[RTE_MAX_ETHPORTS]))
> + return NULL;
> + if (start != NULL)
> + idx = start - &rte_eth_devices[0] + 1;
> + else
> + idx = 0;
> + for (; idx < RTE_MAX_ETHPORTS; idx++) {
> + edev = &rte_eth_devices[idx];
Shouldn't we limit it to valid ports only?
If no, I think it would be useful to highlight it in the function
description that it iterates over all devices including unused.
> + if (cmp(edev, data) == 0)
> + return edev;
> + }
> + return NULL;
> +}
> +
> diff --git a/lib/librte_ethdev/eth_private.h b/lib/librte_ethdev/eth_private.h
> new file mode 100644
> index 000000000..0f5c6d5c4
> --- /dev/null
> +++ b/lib/librte_ethdev/eth_private.h
ethdev_private.h
<...>
next prev parent reply other threads:[~2018-08-31 10:09 UTC|newest]
Thread overview: 47+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-08-30 13:41 [dpdk-dev] [PATCH v1 00/13] Implement new devargs framework Gaetan Rivet
2018-08-30 13:41 ` [dpdk-dev] [PATCH v1 01/13] bus/pci: implement device iteration and comparison Gaetan Rivet
2018-08-30 13:41 ` [dpdk-dev] [PATCH v1 02/13] bus/pci: add device matching field id Gaetan Rivet
2018-08-30 13:41 ` [dpdk-dev] [PATCH v1 03/13] bus/vdev: implement device iteration Gaetan Rivet
2018-08-30 13:41 ` [dpdk-dev] [PATCH v1 04/13] bus/vdev: add device matching field driver Gaetan Rivet
2018-08-30 13:41 ` [dpdk-dev] [PATCH v1 05/13] ethdev: add private generic device iterator Gaetan Rivet
2018-08-31 10:09 ` Andrew Rybchenko [this message]
2018-08-31 10:22 ` Gaëtan Rivet
2018-08-30 13:41 ` [dpdk-dev] [PATCH v1 06/13] ethdev: register ether layer as a class Gaetan Rivet
2018-08-31 10:09 ` Andrew Rybchenko
2018-08-30 13:41 ` [dpdk-dev] [PATCH v1 07/13] ethdev: add device matching field name Gaetan Rivet
2018-08-31 10:10 ` Andrew Rybchenko
2018-08-30 13:41 ` [dpdk-dev] [PATCH v1 08/13] app/testpmd: add show device command Gaetan Rivet
2018-08-30 13:42 ` [dpdk-dev] [PATCH v1 09/13] bus/pci: pre-process declarative PCI devargs Gaetan Rivet
2018-08-30 13:42 ` [dpdk-dev] [PATCH v1 10/13] bus/vdev: pre-process declarative vdev devargs Gaetan Rivet
2018-08-30 13:42 ` [dpdk-dev] [PATCH v1 11/13] bus/pci: process declarative PCI devargs Gaetan Rivet
2018-08-30 16:15 ` Stephen Hemminger
2018-08-30 16:37 ` Gaëtan Rivet
2018-08-30 13:42 ` [dpdk-dev] [PATCH v1 12/13] ethdev: process declarative eth devargs Gaetan Rivet
2018-08-31 10:10 ` Andrew Rybchenko
2018-08-31 12:16 ` Gaëtan Rivet
2018-08-30 13:42 ` [dpdk-dev] [PATCH v1 13/13] eal: add generic dev parameter Gaetan Rivet
2018-08-30 15:42 ` [dpdk-dev] [PATCH v1 00/13] Implement new devargs framework Stephen Hemminger
2018-09-19 16:03 ` [dpdk-dev] [PATCH v2 " Gaetan Rivet
2018-09-19 16:03 ` [dpdk-dev] [PATCH v2 01/13] bus/pci: implement device iteration and comparison Gaetan Rivet
2018-09-19 16:03 ` [dpdk-dev] [PATCH v2 02/13] bus/pci: add device matching field id Gaetan Rivet
2018-09-19 16:03 ` [dpdk-dev] [PATCH v2 03/13] bus/vdev: implement device iteration Gaetan Rivet
2018-09-19 16:03 ` [dpdk-dev] [PATCH v2 04/13] bus/vdev: add device matching field driver Gaetan Rivet
2018-09-20 16:11 ` Thomas Monjalon
2018-09-21 11:53 ` Gaëtan Rivet
2018-09-21 12:55 ` Thomas Monjalon
2018-09-19 16:03 ` [dpdk-dev] [PATCH v2 05/13] ethdev: add private generic device iterator Gaetan Rivet
2018-09-20 10:02 ` Andrew Rybchenko
2018-09-19 16:03 ` [dpdk-dev] [PATCH v2 06/13] ethdev: register ether layer as a class Gaetan Rivet
2018-09-19 16:03 ` [dpdk-dev] [PATCH v2 07/13] ethdev: add device matching field name Gaetan Rivet
2018-09-20 16:17 ` Thomas Monjalon
2018-09-21 12:16 ` Gaëtan Rivet
2018-09-21 13:06 ` Thomas Monjalon
2018-09-19 16:03 ` [dpdk-dev] [PATCH v2 08/13] app/testpmd: add show device command Gaetan Rivet
2018-09-19 16:03 ` [dpdk-dev] [PATCH v2 09/13] bus/pci: pre-process declarative PCI devargs Gaetan Rivet
2018-09-19 16:03 ` [dpdk-dev] [PATCH v2 10/13] bus/vdev: pre-process declarative vdev devargs Gaetan Rivet
2018-09-19 16:03 ` [dpdk-dev] [PATCH v2 11/13] bus/pci: process declarative PCI devargs Gaetan Rivet
2018-09-19 16:03 ` [dpdk-dev] [PATCH v2 12/13] ethdev: process declarative eth devargs Gaetan Rivet
2018-09-20 10:11 ` Andrew Rybchenko
2018-09-19 16:03 ` [dpdk-dev] [PATCH v2 13/13] eal: add generic dev parameter Gaetan Rivet
2018-10-03 12:31 ` [dpdk-dev] [PATCH v2 00/13] Implement new devargs framework Thomas Monjalon
2020-02-19 5:43 ` Pavan Nikhilesh Bhagavatula
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