From: Jan Blunck <jblunck@infradead.org>
To: "Gaëtan Rivet" <gaetan.rivet@6wind.com>
Cc: dev <dev@dpdk.org>, Shreyansh Jain <shreyansh.jain@nxp.com>
Subject: Re: [dpdk-dev] [PATCH v8 09/14] bus: introduce device plug/unplug functionality
Date: Fri, 30 Jun 2017 20:52:12 +0200 [thread overview]
Message-ID: <CALe+Z00c4J5ir_Nx9T-rNvkd79tQXtGBhrPe9UJ7HnOX7pMt3g@mail.gmail.com> (raw)
In-Reply-To: <20170630183826.GP13355@bidouze.vm.6wind.com>
On Fri, Jun 30, 2017 at 8:38 PM, Gaëtan Rivet <gaetan.rivet@6wind.com> wrote:
> On Fri, Jun 30, 2017 at 08:19:38PM +0200, Jan Blunck wrote:
>> This allows the buses to plug and probe specific devices. This is meant to
>> be a building block for hotplug support.
>>
>> Signed-off-by: Jan Blunck <jblunck@infradead.org>
>> ---
>> lib/librte_eal/common/eal_common_bus.c | 2 ++
>> lib/librte_eal/common/include/rte_bus.h | 32 ++++++++++++++++++++++++++++++++
>> 2 files changed, 34 insertions(+)
>>
>> diff --git a/lib/librte_eal/common/eal_common_bus.c b/lib/librte_eal/common/eal_common_bus.c
>> index bf2b138..87b0c6e 100644
>> --- a/lib/librte_eal/common/eal_common_bus.c
>> +++ b/lib/librte_eal/common/eal_common_bus.c
>> @@ -51,6 +51,8 @@ rte_bus_register(struct rte_bus *bus)
>> RTE_VERIFY(bus->scan);
>> RTE_VERIFY(bus->probe);
>> RTE_VERIFY(bus->find_device);
>> + /* Buses supporting driver plug also require unplug. */
>> + RTE_VERIFY(!bus->plug || bus->unplug);
>>
>> TAILQ_INSERT_TAIL(&rte_bus_list, bus, next);
>> RTE_LOG(DEBUG, EAL, "Registered [%s] bus.\n", bus->name);
>> diff --git a/lib/librte_eal/common/include/rte_bus.h b/lib/librte_eal/common/include/rte_bus.h
>> index 509292d..34ea9d5 100644
>> --- a/lib/librte_eal/common/include/rte_bus.h
>> +++ b/lib/librte_eal/common/include/rte_bus.h
>> @@ -108,6 +108,36 @@ typedef struct rte_device *
>> const void *data);
>>
>> /**
>> + * Implementation specific probe function which is responsible for linking
>> + * devices on that bus with applicable drivers.
>> + *
>> + * @param dev
>> + * Device pointer that was returned by a previous call to find_device.
>> + *
>> + * @param devargs
>> + * Device declaration.
>> + *
>> + * @return
>> + * The pointer to a valid rte_device usable by the bus on success.
>> + * NULL on error. rte_errno is then set.
>> + */
>> +typedef int (*rte_bus_plug_t)(struct rte_device *dev,
>
> This typedef does not match its doc.
> If it is the doc that is right, the PCI and vdev implementation should
> be fixed as well.
>
No, its the doc that needs fixing.
diff --git a/lib/librte_eal/common/include/rte_bus.h b/lib/librte_eal/common/inc
lude/rte_bus.h
index 34ea9d5..2f1c911 100644
--- a/lib/librte_eal/common/include/rte_bus.h
+++ b/lib/librte_eal/common/include/rte_bus.h
@@ -118,8 +118,8 @@ typedef struct rte_device *
* Device declaration.
*
* @return
- * The pointer to a valid rte_device usable by the bus on success.
- * NULL on error. rte_errno is then set.
+ * 0 on success.
+ * !0 on error.
*/
typedef int (*rte_bus_plug_t)(struct rte_device *dev,
const char *devargs);
@@ -133,7 +133,7 @@ typedef int (*rte_bus_plug_t)(struct rte_device *dev,
*
* @return
* 0 on success.
- * !0 on error. rte_errno is then set.
+ * !0 on error.
*/
typedef int (*rte_bus_unplug_t)(struct rte_device *dev);
next prev parent reply other threads:[~2017-06-30 18:52 UTC|newest]
Thread overview: 117+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-06-26 0:21 [dpdk-dev] [PATCH v5 00/12] bus: attach / detach API Gaetan Rivet
2017-06-26 0:21 ` [dpdk-dev] [PATCH v5 01/12] bus: add bus iterator to find a bus Gaetan Rivet
2017-06-26 15:30 ` Bruce Richardson
2017-06-26 20:53 ` Gaëtan Rivet
2017-06-26 0:22 ` [dpdk-dev] [PATCH v5 02/12] bus: add device iterator method Gaetan Rivet
2017-06-26 16:20 ` Bruce Richardson
2017-06-26 21:13 ` Gaëtan Rivet
2017-06-26 0:22 ` [dpdk-dev] [PATCH v5 03/12] bus: add helper to find which bus holds a device Gaetan Rivet
2017-06-26 16:31 ` Bruce Richardson
2017-06-26 22:16 ` Gaëtan Rivet
2017-06-26 0:22 ` [dpdk-dev] [PATCH v5 04/12] bus: add bus iterator to find " Gaetan Rivet
2017-06-27 10:14 ` Bruce Richardson
2017-06-27 13:54 ` Bruce Richardson
2017-06-27 15:05 ` Gaëtan Rivet
2017-06-27 15:08 ` Bruce Richardson
2017-06-26 0:22 ` [dpdk-dev] [PATCH v5 05/12] bus: introduce hotplug functionality Gaetan Rivet
2017-06-27 12:23 ` Bruce Richardson
2017-06-26 0:22 ` [dpdk-dev] [PATCH v5 06/12] vdev: implement find_device bus operation Gaetan Rivet
2017-06-27 12:25 ` Bruce Richardson
2017-06-26 0:22 ` [dpdk-dev] [PATCH v5 07/12] vdev: implement hotplug functionality Gaetan Rivet
2017-06-27 12:41 ` Bruce Richardson
2017-06-26 0:22 ` [dpdk-dev] [PATCH v5 08/12] vdev: expose bus name Gaetan Rivet
2017-06-27 12:45 ` Bruce Richardson
2017-06-26 0:22 ` [dpdk-dev] [PATCH v5 09/12] vdev: use standard bus registration function Gaetan Rivet
2017-06-27 12:59 ` Bruce Richardson
2017-06-26 0:22 ` [dpdk-dev] [PATCH v5 10/12] pci: implement find_device bus operation Gaetan Rivet
2017-06-27 13:36 ` Bruce Richardson
2017-06-26 0:22 ` [dpdk-dev] [PATCH v5 11/12] pci: implement hotplug " Gaetan Rivet
2017-06-27 13:49 ` Bruce Richardson
2017-06-26 0:22 ` [dpdk-dev] [PATCH v5 12/12] eal: make virtual driver probe and remove take rte_vdev_device Gaetan Rivet
2017-06-27 13:58 ` Bruce Richardson
2017-06-27 14:47 ` Gaëtan Rivet
2017-06-27 15:06 ` Bruce Richardson
2017-06-27 14:00 ` Bruce Richardson
2017-06-27 14:08 ` [dpdk-dev] [PATCH v5 00/12] bus: attach / detach API Bruce Richardson
2017-06-27 14:48 ` Gaëtan Rivet
2017-06-27 16:11 ` [dpdk-dev] [PATCH v6 00/11] " Gaetan Rivet
2017-06-27 16:11 ` [dpdk-dev] [PATCH v6 01/11] bus: add bus iterator to find a bus Gaetan Rivet
2017-06-27 16:11 ` [dpdk-dev] [PATCH v6 02/11] bus: add device iterator method Gaetan Rivet
2017-06-27 16:11 ` [dpdk-dev] [PATCH v6 03/11] bus: add helper to find which bus holds a device Gaetan Rivet
2017-06-27 16:11 ` [dpdk-dev] [PATCH v6 04/11] bus: add bus iterator to find " Gaetan Rivet
2017-06-27 16:11 ` [dpdk-dev] [PATCH v6 05/11] bus: introduce hotplug functionality Gaetan Rivet
2017-06-27 19:03 ` Jan Blunck
2017-06-28 11:44 ` Thomas Monjalon
2017-06-28 11:58 ` Jan Blunck
2017-06-28 12:11 ` Thomas Monjalon
2017-06-28 13:09 ` Jan Blunck
2017-06-28 13:30 ` Thomas Monjalon
2017-06-28 15:11 ` Jan Blunck
2017-06-28 15:33 ` Bruce Richardson
2017-06-29 12:59 ` Gaëtan Rivet
2017-06-29 19:20 ` Jan Blunck
2017-06-30 11:32 ` Gaëtan Rivet
2017-06-27 16:11 ` [dpdk-dev] [PATCH v6 06/11] vdev: implement find_device bus operation Gaetan Rivet
2017-06-27 16:11 ` [dpdk-dev] [PATCH v6 07/11] vdev: implement hotplug " Gaetan Rivet
2017-06-27 16:11 ` [dpdk-dev] [PATCH v6 08/11] vdev: use standard bus registration function Gaetan Rivet
2017-07-03 22:15 ` Thomas Monjalon
2017-06-27 16:11 ` [dpdk-dev] [PATCH v6 09/11] pci: implement find_device bus operation Gaetan Rivet
2017-06-27 23:35 ` Stephen Hemminger
2017-06-28 9:17 ` Gaëtan Rivet
2017-06-28 9:52 ` Richardson, Bruce
2017-06-27 16:11 ` [dpdk-dev] [PATCH v6 10/11] pci: implement hotplug " Gaetan Rivet
2017-06-27 16:11 ` [dpdk-dev] [PATCH v6 11/11] dev: use new hotplug API in attach / detach Gaetan Rivet
2017-06-29 18:21 ` [dpdk-dev] [PATCH 00/15] bus attach/detach API and hotplug rework Jan Blunck
2017-06-29 18:21 ` [dpdk-dev] [PATCH v7 01/15] bus: add bus iterator to find a bus Jan Blunck
2017-06-29 18:21 ` [dpdk-dev] [PATCH v7 02/15] bus: add find_device bus operation Jan Blunck
2017-06-29 18:21 ` [dpdk-dev] [PATCH v7 03/15] vdev: implement " Jan Blunck
2017-06-29 18:21 ` [dpdk-dev] [PATCH v7 04/15] pci: " Jan Blunck
2017-06-29 18:21 ` [dpdk-dev] [PATCH v7 05/15] bus/fslmc: " Jan Blunck
2017-06-29 18:21 ` [dpdk-dev] [PATCH v7 06/15] bus: add helper to find which bus holds a device Jan Blunck
2017-06-30 9:16 ` Thomas Monjalon
2017-06-30 16:46 ` Jan Blunck
2017-06-30 18:29 ` Thomas Monjalon
2017-06-30 21:24 ` Bruce Richardson
2017-06-30 21:25 ` Bruce Richardson
2017-06-29 18:21 ` [dpdk-dev] [PATCH v7 07/15] bus: add bus iterator to find " Jan Blunck
2017-06-30 9:17 ` Thomas Monjalon
2017-06-29 18:21 ` [dpdk-dev] [PATCH v7 08/15] bus: require buses to implement find_device operation Jan Blunck
2017-06-29 18:22 ` [dpdk-dev] [PATCH v7 09/15] bus: add rte_bus_find_by_name Jan Blunck
2017-06-29 18:22 ` [dpdk-dev] [PATCH v7 10/15] bus: introduce device plug/unplug functionality Jan Blunck
2017-06-29 18:22 ` [dpdk-dev] [PATCH v7 11/15] vdev: implement unplug bus operation Jan Blunck
2017-06-29 18:22 ` [dpdk-dev] [PATCH v7 12/15] pci: implement hotplug " Jan Blunck
2017-06-29 18:22 ` [dpdk-dev] [PATCH v7 13/15] eal: add hotplug add/remove functions Jan Blunck
2017-06-30 9:06 ` Thomas Monjalon
2017-06-30 9:11 ` Gaëtan Rivet
2017-06-30 9:20 ` Bruce Richardson
2017-06-30 15:44 ` Jan Blunck
2017-06-30 16:03 ` Thomas Monjalon
2017-06-30 16:13 ` Gaëtan Rivet
2017-06-30 16:25 ` Bruce Richardson
2017-06-30 16:29 ` Thomas Monjalon
2017-06-30 12:54 ` Thomas Monjalon
2017-06-30 15:12 ` Jan Blunck
2017-06-29 18:22 ` [dpdk-dev] [PATCH v7 14/15] dev: use new hotplug API in attach / detach Jan Blunck
2017-06-29 21:05 ` Thomas Monjalon
2017-06-29 18:22 ` [dpdk-dev] [PATCH v7 15/15] ethdev: Use embedded rte_device to detach driver Jan Blunck
2017-06-29 20:58 ` Thomas Monjalon
2017-06-30 9:59 ` [dpdk-dev] [PATCH 00/15] bus attach/detach API and hotplug rework Thomas Monjalon
2017-06-30 18:19 ` [dpdk-dev] [PATCH v8 00/14] " Jan Blunck
2017-06-30 18:19 ` [dpdk-dev] [PATCH v8 01/14] bus: add bus iterator to find a bus Jan Blunck
2017-06-30 18:19 ` [dpdk-dev] [PATCH v8 02/14] bus: add find_device bus operation Jan Blunck
2017-06-30 18:19 ` [dpdk-dev] [PATCH v8 03/14] vdev: implement " Jan Blunck
2017-06-30 18:19 ` [dpdk-dev] [PATCH v8 04/14] pci: " Jan Blunck
2017-06-30 18:19 ` [dpdk-dev] [PATCH v8 05/14] bus/fslmc: " Jan Blunck
2017-06-30 18:19 ` [dpdk-dev] [PATCH v8 06/14] bus: add helper to find which bus holds a device Jan Blunck
2017-06-30 18:19 ` [dpdk-dev] [PATCH v8 07/14] bus: require buses to implement find_device operation Jan Blunck
2017-06-30 18:19 ` [dpdk-dev] [PATCH v8 08/14] bus: add rte_bus_find_by_name Jan Blunck
2017-06-30 18:19 ` [dpdk-dev] [PATCH v8 09/14] bus: introduce device plug/unplug functionality Jan Blunck
2017-06-30 18:38 ` Gaëtan Rivet
2017-06-30 18:52 ` Jan Blunck [this message]
2017-06-30 18:19 ` [dpdk-dev] [PATCH v8 10/14] vdev: implement unplug bus operation Jan Blunck
2017-06-30 18:19 ` [dpdk-dev] [PATCH v8 11/14] pci: implement hotplug " Jan Blunck
2017-06-30 18:19 ` [dpdk-dev] [PATCH v8 12/14] eal: add hotplug add/remove functions Jan Blunck
2017-06-30 18:19 ` [dpdk-dev] [PATCH v8 13/14] ethdev: Use embedded rte_device to detach driver Jan Blunck
2017-07-03 23:17 ` Thomas Monjalon
2017-06-30 18:19 ` [dpdk-dev] [PATCH v8 14/14] dev: use new hotplug API in attach Jan Blunck
2017-07-03 22:59 ` [dpdk-dev] [PATCH v8 00/14] bus attach/detach API and hotplug rework Thomas Monjalon
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