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From: Shreyansh Jain <shreyansh.jain@nxp.com>
To: Jan Blunck <jblunck@infradead.org>
Cc: "dev@dpdk.org" <dev@dpdk.org>,
	David Marchand <david.marchand@6wind.com>,
	 Thomas Monjalon <thomas.monjalon@6wind.com>,
	Ferruh Yigit <ferruh.yigit@intel.com>,
	"jianbo.liu@linaro.org" <jianbo.liu@linaro.org>
Subject: Re: [dpdk-dev] [PATCH v3 02/12] eal/bus: introduce bus abstraction
Date: Sun, 25 Dec 2016 17:39:35 +0000	[thread overview]
Message-ID: <DB5PR0401MB20541F134FAADCA45CEB5CA990970@DB5PR0401MB2054.eurprd04.prod.outlook.com> (raw)
In-Reply-To: <CALe+Z00LYrfzQE1916LoOqytcFjJ1xRXFL-wLvX03eham11Vvw@mail.gmail.com>

Hi Jan,

> -----Original Message-----
> From: jblunck@gmail.com [mailto:jblunck@gmail.com] On Behalf Of Jan Blunck
> Sent: Tuesday, December 20, 2016 6:47 PM
> To: Shreyansh Jain <shreyansh.jain@nxp.com>
> Cc: dev@dpdk.org; David Marchand <david.marchand@6wind.com>; Thomas Monjalon
> <thomas.monjalon@6wind.com>; Ferruh Yigit <ferruh.yigit@intel.com>;
> jianbo.liu@linaro.org
> Subject: Re: [dpdk-dev] [PATCH v3 02/12] eal/bus: introduce bus abstraction
> 

[...]

> > +#endif /* _RTE_BUS_H */
> > diff --git a/lib/librte_eal/common/include/rte_dev.h
> b/lib/librte_eal/common/include/rte_dev.h
> > index 8840380..4004f9a 100644
> > --- a/lib/librte_eal/common/include/rte_dev.h
> > +++ b/lib/librte_eal/common/include/rte_dev.h
> > @@ -122,6 +122,7 @@ struct rte_driver;
> >   */
> >  struct rte_device {
> >         TAILQ_ENTRY(rte_device) next; /**< Next device */
> > +       struct rte_bus *bus;          /**< Device connected to this bus */
> 
> Is there a reason why this isn't const?

Though initially I thought it should be fine, while creating v4 of Bus patches, I didn't change it.

There are cases where the rte_device is used to access the bus and modify the device list within (attaching/detaching the device). Same is the case for rte_driver. Making bus object read-only, prevents that change.

So, I will skip this in v4. If need be, I will revisit in v5 (if any).

> 
> 
> >         struct rte_driver *driver;    /**< Associated driver */
> >         int numa_node;                /**< NUMA node connection */
> >         struct rte_devargs *devargs;  /**< Device user arguments */
> > @@ -148,6 +149,7 @@ void rte_eal_device_remove(struct rte_device *dev);
> >   */
> >  struct rte_driver {
> >         TAILQ_ENTRY(rte_driver) next;  /**< Next in list. */
> > +       struct rte_bus *bus;           /**< Bus serviced by this driver */
> 
> Same thing here.
> 
> >         const char *name;                   /**< Driver name. */
> >         const char *alias;              /**< Driver alias. */
> >  };
> > diff --git a/lib/librte_eal/linuxapp/eal/Makefile
> b/lib/librte_eal/linuxapp/eal/Makefile
> > index 4e206f0..aa874a5 100644
> > --- a/lib/librte_eal/linuxapp/eal/Makefile
> > +++ b/lib/librte_eal/linuxapp/eal/Makefile
> > @@ -87,6 +87,7 @@ SRCS-$(CONFIG_RTE_EXEC_ENV_LINUXAPP) +=
> eal_common_cpuflags.c
> >  SRCS-$(CONFIG_RTE_EXEC_ENV_LINUXAPP) += eal_common_string_fns.c
> >  SRCS-$(CONFIG_RTE_EXEC_ENV_LINUXAPP) += eal_common_hexdump.c
> >  SRCS-$(CONFIG_RTE_EXEC_ENV_LINUXAPP) += eal_common_devargs.c
> > +SRCS-$(CONFIG_RTE_EXEC_ENV_LINUXAPP) += eal_common_bus.c
> >  SRCS-$(CONFIG_RTE_EXEC_ENV_LINUXAPP) += eal_common_dev.c
> >  SRCS-$(CONFIG_RTE_EXEC_ENV_LINUXAPP) += eal_common_options.c
> >  SRCS-$(CONFIG_RTE_EXEC_ENV_LINUXAPP) += eal_common_thread.c
> > diff --git a/lib/librte_eal/linuxapp/eal/rte_eal_version.map
> b/lib/librte_eal/linuxapp/eal/rte_eal_version.map
> > index 83721ba..c873a7f 100644
> > --- a/lib/librte_eal/linuxapp/eal/rte_eal_version.map
> > +++ b/lib/librte_eal/linuxapp/eal/rte_eal_version.map
> > @@ -178,3 +178,18 @@ DPDK_16.11 {
> >         rte_eal_vdrv_unregister;
> >
> >  } DPDK_16.07;
> > +
> > +DPDK_17.02 {
> > +       global:
> > +
> > +       rte_bus_list;
> > +       rte_eal_bus_add_device;
> > +       rte_eal_bus_add_driver;
> > +       rte_eal_get_bus;
> > +       rte_eal_bus_dump;
> > +       rte_eal_bus_register;
> > +       rte_eal_bus_remove_device;
> > +       rte_eal_bus_remove_driver;
> > +       rte_eal_bus_unregister;
> > +
> > +} DPDK_16.11;
> > --
> > 2.7.4
> >

-
Shreyansh

  parent reply	other threads:[~2016-12-25 17:39 UTC|newest]

Thread overview: 132+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-12-04 10:11 [dpdk-dev] [PATCH 00/13] Introducing EAL Bus-Device-Driver Model Shreyansh Jain
2016-12-04 10:11 ` [dpdk-dev] [PATCH 01/13] eal: define container_of macro Shreyansh Jain
2016-12-04 10:11 ` [dpdk-dev] [PATCH 02/13] eal/bus: introduce bus abstraction Shreyansh Jain
2016-12-04 10:11 ` [dpdk-dev] [PATCH 03/13] test: add basic bus infrastructure tests Shreyansh Jain
2016-12-04 10:11 ` [dpdk-dev] [PATCH 04/13] eal/bus: add scan and match support Shreyansh Jain
2016-12-04 10:11 ` [dpdk-dev] [PATCH 05/13] eal/bus: add support for inserting a device on a bus Shreyansh Jain
2016-12-04 10:11 ` [dpdk-dev] [PATCH 06/13] eal: integrate bus scan and probe with EAL Shreyansh Jain
2016-12-04 10:11 ` [dpdk-dev] [PATCH 07/13] pci: replace probe and remove handlers with rte_driver Shreyansh Jain
2016-12-08 17:50   ` Ferruh Yigit
2016-12-09  4:59     ` Shreyansh Jain
2016-12-04 10:11 ` [dpdk-dev] [PATCH 08/13] eal: enable probe and remove from bus infrastructure Shreyansh Jain
2016-12-06 10:45   ` Shreyansh Jain
2016-12-04 10:11 ` [dpdk-dev] [PATCH 09/13] pci: split match and probe function Shreyansh Jain
2016-12-04 10:11 ` [dpdk-dev] [PATCH 10/13] eal/pci: generalize args of PCI scan/match towards RTE device/driver Shreyansh Jain
2016-12-04 10:11 ` [dpdk-dev] [PATCH 11/13] pci: Pass rte_pci_addr to functions instead of separate args Shreyansh Jain
2016-12-04 10:11 ` [dpdk-dev] [PATCH 12/13] eal: enable PCI bus Shreyansh Jain
2016-12-04 10:11 ` [dpdk-dev] [PATCH 13/13] eal/pci: remove PCI probe and init calls Shreyansh Jain
2016-12-06 20:52 ` [dpdk-dev] [PATCH 00/13] Introducing EAL Bus-Device-Driver Model David Marchand
2016-12-07  9:55   ` Shreyansh Jain
2016-12-07 12:17     ` David Marchand
2016-12-07 13:10       ` Shreyansh Jain
2016-12-07 13:24         ` Thomas Monjalon
2016-12-08  5:04           ` Shreyansh Jain
2016-12-08  7:21             ` Thomas Monjalon
2016-12-08  7:53               ` Shreyansh Jain
2016-12-12 14:35         ` Jianbo Liu
2016-12-13  6:56           ` Shreyansh Jain
2016-12-13 13:37 ` [dpdk-dev] [PATCH v2 00/12] " Shreyansh Jain
2016-12-13 13:37   ` [dpdk-dev] [PATCH v2 01/12] eal: define container_of macro Shreyansh Jain
2016-12-13 22:24     ` Jan Blunck
2016-12-14  5:12       ` Shreyansh Jain
2016-12-16  8:14         ` Jan Blunck
2016-12-16  9:23           ` Adrien Mazarguil
2016-12-16 10:47             ` Jan Blunck
2016-12-16 11:21               ` Adrien Mazarguil
2016-12-16 11:54                 ` Shreyansh Jain
2016-12-13 13:37   ` [dpdk-dev] [PATCH v2 02/12] eal/bus: introduce bus abstraction Shreyansh Jain
2016-12-13 13:37   ` [dpdk-dev] [PATCH v2 03/12] test: add basic bus infrastructure tests Shreyansh Jain
2016-12-13 13:37   ` [dpdk-dev] [PATCH v2 04/12] eal/bus: add scan, match and insert support Shreyansh Jain
2016-12-13 13:37   ` [dpdk-dev] [PATCH v2 05/12] eal: integrate bus scan and probe with EAL Shreyansh Jain
2016-12-13 13:37   ` [dpdk-dev] [PATCH v2 06/12] eal: add probe and remove support for rte_driver Shreyansh Jain
2016-12-13 13:37   ` [dpdk-dev] [PATCH v2 07/12] eal: enable probe from bus infrastructure Shreyansh Jain
2016-12-13 13:37   ` [dpdk-dev] [PATCH v2 08/12] pci: split match and probe function Shreyansh Jain
2016-12-13 13:37   ` [dpdk-dev] [PATCH v2 09/12] eal/pci: generalize args of PCI scan/match towards RTE device/driver Shreyansh Jain
2016-12-13 13:37   ` [dpdk-dev] [PATCH v2 10/12] pci: Pass rte_pci_addr to functions instead of separate args Shreyansh Jain
2016-12-13 13:37   ` [dpdk-dev] [PATCH v2 11/12] eal: enable PCI bus Shreyansh Jain
2016-12-13 13:37   ` [dpdk-dev] [PATCH v2 12/12] drivers: update PMDs to use rte_driver probe and remove Shreyansh Jain
2016-12-13 13:52     ` Andrew Rybchenko
2016-12-13 15:07       ` Ferruh Yigit
2016-12-14  5:14         ` Shreyansh Jain
2016-12-14  5:11       ` Shreyansh Jain
2016-12-14  9:49     ` Shreyansh Jain
2016-12-15 21:36       ` Jan Blunck
2016-12-26  9:14         ` Shreyansh Jain
2016-12-16 13:10   ` [dpdk-dev] [PATCH v3 00/12] Introducing EAL Bus-Device-Driver Model Shreyansh Jain
2016-12-16 13:10     ` [dpdk-dev] [PATCH v3 01/12] eal: define container_of macro Shreyansh Jain
2016-12-16 13:10     ` [dpdk-dev] [PATCH v3 02/12] eal/bus: introduce bus abstraction Shreyansh Jain
2016-12-20 12:37       ` Hemant Agrawal
2016-12-20 13:17       ` Jan Blunck
2016-12-20 13:51         ` Shreyansh Jain
2016-12-20 17:11         ` Stephen Hemminger
2016-12-21  7:11           ` Shreyansh Jain
2016-12-21 15:38           ` Jan Blunck
2016-12-21 23:33             ` Stephen Hemminger
2016-12-22  5:12               ` Shreyansh Jain
2016-12-22  5:52                 ` Shreyansh Jain
2016-12-25 17:39         ` Shreyansh Jain [this message]
2016-12-16 13:10     ` [dpdk-dev] [PATCH v3 03/12] test: add basic bus infrastructure tests Shreyansh Jain
2016-12-16 13:10     ` [dpdk-dev] [PATCH v3 04/12] eal/bus: add scan, match and insert support Shreyansh Jain
2016-12-16 13:25       ` Shreyansh Jain
2016-12-16 13:10     ` [dpdk-dev] [PATCH v3 05/12] eal: integrate bus scan and probe with EAL Shreyansh Jain
2016-12-16 13:10     ` [dpdk-dev] [PATCH v3 06/12] eal: add probe and remove support for rte_driver Shreyansh Jain
2016-12-16 13:10     ` [dpdk-dev] [PATCH v3 07/12] eal: enable probe from bus infrastructure Shreyansh Jain
2016-12-16 13:10     ` [dpdk-dev] [PATCH v3 08/12] pci: split match and probe function Shreyansh Jain
2016-12-16 13:10     ` [dpdk-dev] [PATCH v3 09/12] eal/pci: generalize args of PCI scan/match towards RTE device/driver Shreyansh Jain
2016-12-16 13:10     ` [dpdk-dev] [PATCH v3 10/12] pci: Pass rte_pci_addr to functions instead of separate args Shreyansh Jain
2016-12-16 13:10     ` [dpdk-dev] [PATCH v3 11/12] eal: enable PCI bus and PCI test framework Shreyansh Jain
2016-12-16 13:20       ` Shreyansh Jain
2016-12-16 13:10     ` [dpdk-dev] [PATCH v3 12/12] drivers: update PMDs to use rte_driver probe and remove Shreyansh Jain
2016-12-26 12:50     ` [dpdk-dev] [PATCH v4 00/12] Introducing EAL Bus-Device-Driver Model Shreyansh Jain
2016-12-26 12:50       ` [dpdk-dev] [PATCH v4 01/12] eal/bus: introduce bus abstraction Shreyansh Jain
2016-12-26 12:50       ` [dpdk-dev] [PATCH v4 02/12] test: add basic bus infrastructure tests Shreyansh Jain
2016-12-26 12:50       ` [dpdk-dev] [PATCH v4 03/12] eal/bus: add scan, match and insert support Shreyansh Jain
2016-12-26 13:27         ` Shreyansh Jain
2016-12-26 12:50       ` [dpdk-dev] [PATCH v4 04/12] eal: integrate bus scan and probe with EAL Shreyansh Jain
2016-12-26 12:50       ` [dpdk-dev] [PATCH v4 05/12] eal: add probe and remove support for rte_driver Shreyansh Jain
2016-12-26 12:50       ` [dpdk-dev] [PATCH v4 06/12] eal: enable probe from bus infrastructure Shreyansh Jain
2016-12-26 12:50       ` [dpdk-dev] [PATCH v4 07/12] pci: split match and probe function Shreyansh Jain
2016-12-26 12:50       ` [dpdk-dev] [PATCH v4 08/12] eal/pci: generalize args of PCI scan/match towards RTE device/driver Shreyansh Jain
2016-12-26 12:50       ` [dpdk-dev] [PATCH v4 09/12] pci: Pass rte_pci_addr to functions instead of separate args Shreyansh Jain
2016-12-26 12:50       ` [dpdk-dev] [PATCH v4 10/12] eal: enable PCI bus and PCI test framework Shreyansh Jain
2016-12-26 12:50       ` [dpdk-dev] [PATCH v4 11/12] drivers: update PMDs to use rte_driver probe and remove Shreyansh Jain
2016-12-26 12:50       ` [dpdk-dev] [PATCH v4 12/12] eal/bus: add bus iteration macros Shreyansh Jain
2016-12-26 13:23       ` [dpdk-dev] [PATCH v5 00/12] Introducing EAL Bus-Device-Driver Model Shreyansh Jain
2016-12-26 13:23         ` [dpdk-dev] [PATCH v5 01/12] eal/bus: introduce bus abstraction Shreyansh Jain
2017-01-03 21:52           ` Thomas Monjalon
2017-01-06 10:31             ` Shreyansh Jain
2017-01-06 14:55               ` Thomas Monjalon
2017-01-09  6:24                 ` Shreyansh Jain
2017-01-09 15:22           ` Ferruh Yigit
2017-01-10  4:07             ` Shreyansh Jain
2016-12-26 13:23         ` [dpdk-dev] [PATCH v5 02/12] test: add basic bus infrastructure tests Shreyansh Jain
2016-12-26 13:23         ` [dpdk-dev] [PATCH v5 03/12] eal/bus: add scan, match and insert support Shreyansh Jain
2016-12-26 13:23         ` [dpdk-dev] [PATCH v5 04/12] eal: integrate bus scan and probe with EAL Shreyansh Jain
2017-01-03 21:46           ` Thomas Monjalon
2017-01-06 10:38             ` Shreyansh Jain
2017-01-06 12:00               ` Shreyansh Jain
2017-01-06 13:46                 ` Thomas Monjalon
2017-01-09  6:35                   ` Shreyansh Jain
2017-01-08 12:21           ` Rosen, Rami
2017-01-09  6:34             ` Shreyansh Jain
2016-12-26 13:23         ` [dpdk-dev] [PATCH v5 05/12] eal: add probe and remove support for rte_driver Shreyansh Jain
2017-01-03 22:05           ` Thomas Monjalon
2017-01-06 11:44             ` Shreyansh Jain
2017-01-06 15:26               ` Thomas Monjalon
2017-01-09  6:28                 ` Shreyansh Jain
2016-12-26 13:23         ` [dpdk-dev] [PATCH v5 06/12] eal: enable probe from bus infrastructure Shreyansh Jain
2016-12-26 13:24         ` [dpdk-dev] [PATCH v5 07/12] pci: split match and probe function Shreyansh Jain
2017-01-03 22:08           ` Thomas Monjalon
2016-12-26 13:24         ` [dpdk-dev] [PATCH v5 08/12] eal/pci: generalize args of PCI scan/match towards RTE device/driver Shreyansh Jain
2017-01-03 22:13           ` Thomas Monjalon
2017-01-06 12:03             ` Shreyansh Jain
2016-12-26 13:24         ` [dpdk-dev] [PATCH v5 09/12] pci: Pass rte_pci_addr to functions instead of separate args Shreyansh Jain
2016-12-26 13:24         ` [dpdk-dev] [PATCH v5 10/12] eal: enable PCI bus and PCI test framework Shreyansh Jain
2016-12-26 13:24         ` [dpdk-dev] [PATCH v5 11/12] drivers: update PMDs to use rte_driver probe and remove Shreyansh Jain
2017-01-09 15:19           ` Ferruh Yigit
2017-01-09 16:18             ` Ferruh Yigit
2017-01-10  4:09               ` Shreyansh Jain
2016-12-26 13:24         ` [dpdk-dev] [PATCH v5 12/12] eal/bus: add bus iteration macros Shreyansh Jain
2017-01-03 22:15           ` Thomas Monjalon
2017-01-03 22:22         ` [dpdk-dev] [PATCH v5 00/12] Introducing EAL Bus-Device-Driver Model Thomas Monjalon
2017-01-06  6:27           ` Shreyansh Jain

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