From: "Gaëtan Rivet" <gaetan.rivet@6wind.com>
To: Shreyansh Jain <shreyansh.jain@nxp.com>
Cc: dev@dpdk.org
Subject: Re: [dpdk-dev] [PATCH v2 12/18] eal: add generic device declaration parameter
Date: Wed, 13 Dec 2017 15:47:04 +0100 [thread overview]
Message-ID: <20171213144704.4d7675gw7iaasvtb@bidouze.vm.6wind.com> (raw)
In-Reply-To: <d051e00f-42db-a4ac-00ea-adeb07934d76@nxp.com>
On Wed, Dec 13, 2017 at 07:56:42PM +0530, Shreyansh Jain wrote:
> On Thursday 12 October 2017 01:51 PM, Gaetan Rivet wrote:
> > Add a new generic device declaration parameter:
> >
> > --dev=<device_declaration>
> >
>
> [...]
>
> >
> > diff --git a/lib/librte_eal/common/eal_common_options.c b/lib/librte_eal/common/eal_common_options.c
> > index 603df27..b7591fd 100644
> > --- a/lib/librte_eal/common/eal_common_options.c
> > +++ b/lib/librte_eal/common/eal_common_options.c
> > @@ -95,6 +95,7 @@ eal_long_options[] = {
> > {OPT_PROC_TYPE, 1, NULL, OPT_PROC_TYPE_NUM },
> > {OPT_SOCKET_MEM, 1, NULL, OPT_SOCKET_MEM_NUM },
> > {OPT_SYSLOG, 1, NULL, OPT_SYSLOG_NUM },
> > + {OPT_DEV, 1, NULL, OPT_DEV_NUM },
> > {OPT_VDEV, 1, NULL, OPT_VDEV_NUM },
> > {OPT_VFIO_INTR, 1, NULL, OPT_VFIO_INTR_NUM },
> > {OPT_VMWARE_TSC_MAP, 0, NULL, OPT_VMWARE_TSC_MAP_NUM },
> > @@ -1120,6 +1121,21 @@ eal_parse_common_option(int opt, const char *optarg,
> > }
> > break;
> > + case OPT_DEV_NUM: {
> > + struct rte_devargs da;
> > + int ret;
> > +
> > + if (rte_eal_devargs_parse(&da, optarg) < 0)
> > + return -1;
> > + ret = rte_bus_probe_mode_set(da.bus->name,
> > + RTE_BUS_PROBE_WHITELIST);
> > + if (ret < 0 && ret != -ENOTSUP)
> > + return -1;
> > + if (eal_option_device_add(NULL, optarg) < 0)
> > + return -1;
> > + }
>
> Might be a naive question: Any specific reason why we don't add the devices
> directly into devargs_list here (eal_parse_args -> eal_parse_common_option
> -> OPT_DEV ->) rather than wait for eal to call eal_option_device_parse
> again?
>
> Is it to allow eal_plugins_init() to finish?
>
Yes. And actually this makes me aware of an issue with this
implementation.
Calling rte_eal_devargs_parse here is premature, and
rte_bus_probe_mode_set as well.
eal_plugins_init() must be executed before calling rte_devargs to allow
for buses introduced as plugins to be able to recognize their devices.
I will reorder a few things in eal_options, thanks for catching this.
> > + break;
> > +
> > case OPT_VDEV_NUM:
> > if (eal_option_device_add("vdev", optarg) < 0)
> > return -1;
>
> [...]
>
--
Gaëtan Rivet
6WIND
next prev parent reply other threads:[~2017-12-13 14:47 UTC|newest]
Thread overview: 91+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-08-25 16:07 [dpdk-dev] [PATCH 0/6] devargs cleanup Gaetan Rivet
2017-08-25 16:07 ` [dpdk-dev] [PATCH 1/6] devargs: introduce iterator Gaetan Rivet
2017-08-25 16:07 ` [dpdk-dev] [PATCH 2/6] devargs: introduce foreach macro Gaetan Rivet
2017-08-25 16:07 ` [dpdk-dev] [PATCH 3/6] vdev: do not reference devargs_list Gaetan Rivet
2017-08-25 16:07 ` [dpdk-dev] [PATCH 4/6] bus/pci: " Gaetan Rivet
2017-08-25 16:07 ` [dpdk-dev] [PATCH 5/6] test: remove rte_devargs unit tests Gaetan Rivet
2017-08-25 16:07 ` [dpdk-dev] [PATCH 6/6] devargs: make devargs_list private Gaetan Rivet
2017-10-12 8:21 ` [dpdk-dev] [PATCH v2 00/18] devargs cleanup Gaetan Rivet
2017-10-12 8:21 ` [dpdk-dev] [PATCH v2 01/18] eal: prepend busname on legacy device declaration Gaetan Rivet
2017-12-11 13:57 ` Shreyansh Jain
2017-10-12 8:21 ` [dpdk-dev] [PATCH v2 02/18] eal: remove generic devtype Gaetan Rivet
2017-10-17 18:16 ` Aaron Conole
2017-10-18 8:20 ` Gaëtan Rivet
2017-10-12 8:21 ` [dpdk-dev] [PATCH v2 03/18] devargs: introduce iterator Gaetan Rivet
2017-10-12 8:21 ` [dpdk-dev] [PATCH v2 04/18] devargs: introduce foreach macro Gaetan Rivet
2017-10-12 8:21 ` [dpdk-dev] [PATCH v2 05/18] vdev: do not reference devargs list Gaetan Rivet
2017-10-12 8:21 ` [dpdk-dev] [PATCH v2 06/18] bus/pci: " Gaetan Rivet
2017-10-12 8:21 ` [dpdk-dev] [PATCH v2 07/18] test: remove devargs unit tests Gaetan Rivet
2017-10-12 8:21 ` [dpdk-dev] [PATCH v2 08/18] devargs: make devargs list private Gaetan Rivet
2017-10-12 8:21 ` [dpdk-dev] [PATCH v2 09/18] devargs: make parsing variadic Gaetan Rivet
2017-10-12 8:21 ` [dpdk-dev] [PATCH v2 10/18] devargs: require bus name prefix Gaetan Rivet
2017-10-12 8:21 ` [dpdk-dev] [PATCH v2 11/18] devargs: simplify implementation Gaetan Rivet
2017-10-16 11:39 ` Shreyansh Jain
2017-10-16 11:42 ` Shreyansh Jain
2017-10-16 13:42 ` Gaëtan Rivet
2017-10-17 5:58 ` Shreyansh Jain
2017-10-12 8:21 ` [dpdk-dev] [PATCH v2 12/18] eal: add generic device declaration parameter Gaetan Rivet
2017-12-13 14:26 ` Shreyansh Jain
2017-12-13 14:47 ` Gaëtan Rivet [this message]
2017-12-13 15:24 ` Shreyansh Jain
2017-10-12 8:21 ` [dpdk-dev] [PATCH v2 13/18] bus: make device recognition function public Gaetan Rivet
2017-10-12 8:21 ` [dpdk-dev] [PATCH v2 14/18] net/failsafe: keep legacy sub-device declaration Gaetan Rivet
2017-10-12 8:21 ` [dpdk-dev] [PATCH v2 15/18] ether: use new devargs parsing function Gaetan Rivet
2017-10-12 8:21 ` [dpdk-dev] [PATCH v2 16/18] devargs: remove old " Gaetan Rivet
2017-10-12 8:21 ` [dpdk-dev] [PATCH v2 17/18] devargs: use proper prefix Gaetan Rivet
2017-10-12 8:21 ` [dpdk-dev] [PATCH v2 18/18] doc: remove devargs deprecation notices Gaetan Rivet
2017-10-12 11:28 ` Mcnamara, John
2017-12-13 10:17 ` Shreyansh Jain
2017-12-13 10:25 ` Gaëtan Rivet
2017-12-13 10:54 ` Shreyansh Jain
2017-12-22 4:59 ` Shreyansh Jain
2017-12-22 8:33 ` Gaëtan Rivet
2017-10-17 18:18 ` [dpdk-dev] [PATCH v2 00/18] devargs cleanup Aaron Conole
2017-10-18 8:36 ` Gaëtan Rivet
2018-03-20 23:20 ` [dpdk-dev] [PATCH v3 00/10] " Gaetan Rivet
2018-03-20 23:20 ` [dpdk-dev] [PATCH v3 01/10] devargs: introduce iterator Gaetan Rivet
2018-03-21 5:43 ` Tan, Jianfeng
2018-03-21 8:50 ` Gaëtan Rivet
2018-03-20 23:20 ` [dpdk-dev] [PATCH v3 02/10] devargs: introduce foreach macro Gaetan Rivet
2018-04-22 21:42 ` Thomas Monjalon
2018-03-20 23:20 ` [dpdk-dev] [PATCH v3 03/10] bus/vdev: do not reference devargs list Gaetan Rivet
2018-03-21 5:41 ` Tan, Jianfeng
2018-03-20 23:20 ` [dpdk-dev] [PATCH v3 04/10] bus/pci: " Gaetan Rivet
2018-03-20 23:20 ` [dpdk-dev] [PATCH v3 05/10] net/vdev_netvsc: " Gaetan Rivet
2018-03-20 23:20 ` [dpdk-dev] [PATCH v3 06/10] test: remove devargs unit tests Gaetan Rivet
2018-03-20 23:20 ` [dpdk-dev] [PATCH v3 07/10] devargs: make devargs list private Gaetan Rivet
2018-04-22 21:46 ` Thomas Monjalon
2018-03-20 23:20 ` [dpdk-dev] [PATCH v3 08/10] devargs: make parsing variadic Gaetan Rivet
2018-04-22 21:52 ` Thomas Monjalon
2018-03-20 23:20 ` [dpdk-dev] [PATCH v3 09/10] devargs: use proper namespace prefix Gaetan Rivet
2018-03-20 23:20 ` [dpdk-dev] [PATCH v3 10/10] devargs: rename legacy API Gaetan Rivet
2018-04-22 22:00 ` [dpdk-dev] [PATCH v3 00/10] devargs cleanup Thomas Monjalon
2018-04-23 22:41 ` [dpdk-dev] [PATCH v4 " Gaetan Rivet
2018-04-23 22:41 ` [dpdk-dev] [PATCH v4 01/10] devargs: introduce iterator Gaetan Rivet
2018-04-23 23:54 ` Stephen Hemminger
2018-04-24 10:22 ` Gaëtan Rivet
2018-04-23 22:41 ` [dpdk-dev] [PATCH v4 02/10] devargs: introduce foreach macro Gaetan Rivet
2018-04-23 23:56 ` Stephen Hemminger
2018-04-24 10:26 ` Gaëtan Rivet
2018-04-23 22:41 ` [dpdk-dev] [PATCH v4 03/10] bus/vdev: do not reference devargs list Gaetan Rivet
2018-04-23 22:41 ` [dpdk-dev] [PATCH v4 04/10] bus/pci: " Gaetan Rivet
2018-04-23 22:41 ` [dpdk-dev] [PATCH v4 05/10] net/vdev_netvsc: " Gaetan Rivet
2018-04-23 22:41 ` [dpdk-dev] [PATCH v4 06/10] test: remove devargs unit tests Gaetan Rivet
2018-04-23 22:41 ` [dpdk-dev] [PATCH v4 07/10] devargs: make devargs list private Gaetan Rivet
2018-04-23 22:41 ` [dpdk-dev] [PATCH v4 08/10] devargs: make parsing variadic Gaetan Rivet
2018-04-23 22:41 ` [dpdk-dev] [PATCH v4 09/10] devargs: use proper namespace prefix Gaetan Rivet
2018-04-23 22:41 ` [dpdk-dev] [PATCH v4 10/10] devargs: rename legacy API Gaetan Rivet
2018-04-23 23:54 ` [dpdk-dev] [PATCH v5 00/10] devargs cleanup Gaetan Rivet
2018-04-23 23:54 ` [dpdk-dev] [PATCH v5 01/10] devargs: introduce iterator Gaetan Rivet
2018-04-23 23:54 ` [dpdk-dev] [PATCH v5 02/10] bus/vdev: do not reference devargs list Gaetan Rivet
2018-04-23 23:54 ` [dpdk-dev] [PATCH v5 03/10] bus/pci: " Gaetan Rivet
2018-04-23 23:54 ` [dpdk-dev] [PATCH v5 04/10] net/vdev_netvsc: " Gaetan Rivet
2018-04-23 23:54 ` [dpdk-dev] [PATCH v5 05/10] test: remove devargs unit tests Gaetan Rivet
2018-04-25 0:45 ` Thomas Monjalon
2018-04-23 23:54 ` [dpdk-dev] [PATCH v5 06/10] devargs: make devargs list private Gaetan Rivet
2018-04-23 23:54 ` [dpdk-dev] [PATCH v5 07/10] devargs: make parsing variadic Gaetan Rivet
2018-04-23 23:54 ` [dpdk-dev] [PATCH v5 08/10] devargs: update devargs add documentation Gaetan Rivet
2018-04-23 23:54 ` [dpdk-dev] [PATCH v5 09/10] devargs: use proper namespace prefix Gaetan Rivet
2018-04-23 23:54 ` [dpdk-dev] [PATCH v5 10/10] devargs: rename legacy API Gaetan Rivet
2018-04-25 1:51 ` Thomas Monjalon
2018-04-25 1:57 ` [dpdk-dev] [PATCH v5 00/10] devargs cleanup Thomas Monjalon
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