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From: Bruce Richardson <bruce.richardson@intel.com>
To: Tetsuya Mukawa <mukawa@igel.co.jp>
Cc: dev@dpdk.org
Subject: Re: [dpdk-dev] [PATCH v7 06/12] eal: Add pci_uio_alloc_resource()
Date: Fri, 3 Jul 2015 10:45:47 +0100	[thread overview]
Message-ID: <20150703094547.GA7548@bricha3-MOBL3> (raw)
In-Reply-To: <55964D3B.6020507@igel.co.jp>

On Fri, Jul 03, 2015 at 05:52:11PM +0900, Tetsuya Mukawa wrote:
> On 2015/07/02 19:46, Bruce Richardson wrote:
> > On Tue, Jun 30, 2015 at 05:24:22PM +0900, Tetsuya Mukawa wrote:
> >> From: "Tetsuya.Mukawa" <mukawa@igel.co.jp>
> >>
> >> This patch adds a new function called pci_uio_alloc_resource().
> >> The function hides how to prepare uio resource in linuxapp and bsdapp.
> >> With the function, pci_uio_map_resource() will be more abstracted.
> >>
> >> Signed-off-by: Tetsuya Mukawa <mukawa@igel.co.jp>
> >> ---
> >>  lib/librte_eal/bsdapp/eal/eal_pci.c       | 70 +++++++++++++++++++---------
> >>  lib/librte_eal/linuxapp/eal/eal_pci_uio.c | 77 ++++++++++++++++++++++---------
> >>  2 files changed, 104 insertions(+), 43 deletions(-)
> >>
> >> diff --git a/lib/librte_eal/bsdapp/eal/eal_pci.c b/lib/librte_eal/bsdapp/eal/eal_pci.c
> >> index 06c564f..7d2f8b5 100644
> >> --- a/lib/librte_eal/bsdapp/eal/eal_pci.c
> >> +++ b/lib/librte_eal/bsdapp/eal/eal_pci.c
> >> @@ -189,28 +189,17 @@ pci_uio_map_secondary(struct rte_pci_device *dev)
> >>  	return 1;
> >>  }
> >>  
> >> -/* map the PCI resource of a PCI device in virtual memory */
> >>  static int
> >> -pci_uio_map_resource(struct rte_pci_device *dev)
> >> +pci_uio_alloc_resource(struct rte_pci_device *dev,
> >> +		struct mapped_pci_resource **uio_res)
> > Rather than having to pass in a pointer to a pointer, why not change the
> > return type to be "struct mapped_pci_resource *"? The only return values currently
> > are 0 and -1, so those could map to non-NULL and NULL respectively, for error
> > checking.
> >
> > /Bruce
> 
> It might be difficult to do like above, because pci_uio_alloc_resource()
> returns 0, -1 and 1 as return value so far.
> 
> Original pci_uio_map_resource() returns negative return value as error,
> and positive value as driver not found.
> So I follow this specification while implementing the function.
> 
> Tetsuya

Ok. Keep it as is, so.

/Bruce

  reply	other threads:[~2015-07-03  9:45 UTC|newest]

Thread overview: 120+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-05-19  5:54 [dpdk-dev] [PATCH v4 0/5] Clean up pci uio implementations Tetsuya Mukawa
2015-05-19  5:54 ` [dpdk-dev] [PATCH v4 1/5] eal: Fix coding style of eal_pci.c and eal_pci_uio.c Tetsuya Mukawa
2015-05-19 14:51   ` Stephen Hemminger
2015-06-25  3:19   ` [dpdk-dev] [PATCH v5 0/5] Clean up pci uio implementations Tetsuya Mukawa
2015-06-25  3:19     ` [dpdk-dev] [PATCH v5 1/5] eal: Fix coding style of eal_pci.c and eal_pci_uio.c Tetsuya Mukawa
2015-06-25  9:16       ` David Marchand
2015-06-25  3:19     ` [dpdk-dev] [PATCH v5 2/5] eal: Close file descriptor of uio configuration Tetsuya Mukawa
2015-06-25  3:19     ` [dpdk-dev] [PATCH v5 3/5] eal: Fix memory leaks and needless increment of pci_map_addr Tetsuya Mukawa
2015-06-25  9:16       ` David Marchand
2015-06-26  1:30         ` Tetsuya Mukawa
2015-06-25  9:18       ` David Marchand
2015-06-26  1:35         ` Tetsuya Mukawa
2015-06-26  8:18       ` [dpdk-dev] [PATCH v6 0/5] Clean up pci uio implementations Tetsuya Mukawa
2015-06-26  8:18         ` [dpdk-dev] [PATCH v6 1/5] eal: Fix coding style of eal_pci.c and eal_pci_uio.c Tetsuya Mukawa
2015-06-26 14:30           ` Iremonger, Bernard
2015-06-26  8:18         ` [dpdk-dev] [PATCH v6 2/5] eal: Close file descriptor of uio configuration Tetsuya Mukawa
2015-06-26 14:32           ` Iremonger, Bernard
2015-06-26  8:18         ` [dpdk-dev] [PATCH v6 3/5] eal: Fix memory leaks and needless increment of pci_map_addr Tetsuya Mukawa
2015-06-26 14:34           ` Iremonger, Bernard
2015-06-30  8:24           ` [dpdk-dev] [PATCH v7 00/12] Clean up pci uio implementations Tetsuya Mukawa
2015-06-30  8:24             ` [dpdk-dev] [PATCH v7 01/12] eal: Fix coding style of eal_pci.c and eal_pci_uio.c Tetsuya Mukawa
2015-06-30  8:24             ` [dpdk-dev] [PATCH v7 02/12] eal: Close file descriptor of uio configuration Tetsuya Mukawa
2015-06-30  8:24             ` [dpdk-dev] [PATCH v7 03/12] eal: Fix memory leaks and needless increment of pci_map_addr Tetsuya Mukawa
2015-06-30 12:33               ` Iremonger, Bernard
2015-07-02  9:57               ` Bruce Richardson
2015-07-03  8:51                 ` Tetsuya Mukawa
2015-06-30  8:24             ` [dpdk-dev] [PATCH v7 04/12] eal/bsdapp: Change names of pci related data structure Tetsuya Mukawa
2015-06-30 12:36               ` Iremonger, Bernard
2015-06-30  8:24             ` [dpdk-dev] [PATCH v7 05/12] eal: Fix uio mapping differences between linuxapp and bsdapp Tetsuya Mukawa
2015-06-30 12:51               ` Iremonger, Bernard
2015-07-02 10:20               ` Bruce Richardson
2015-07-03  8:51                 ` Tetsuya Mukawa
2015-06-30  8:24             ` [dpdk-dev] [PATCH v7 06/12] eal: Add pci_uio_alloc_resource() Tetsuya Mukawa
2015-07-02 10:46               ` Bruce Richardson
2015-07-03  8:52                 ` Tetsuya Mukawa
2015-07-03  9:45                   ` Bruce Richardson [this message]
2015-06-30  8:24             ` [dpdk-dev] [PATCH v7 07/12] eal: Add pci_uio_map_resource_by_index() Tetsuya Mukawa
2015-06-30  8:24             ` [dpdk-dev] [PATCH v7 08/12] eal: Consolidate pci_map and mapped_pci_resource of linuxapp and bsdapp Tetsuya Mukawa
2015-06-30 14:25               ` Iremonger, Bernard
2015-06-30  8:24             ` [dpdk-dev] [PATCH v7 09/12] eal: Consolidate pci_map/unmap_resource() " Tetsuya Mukawa
2015-06-30 14:28               ` Iremonger, Bernard
2015-07-02 11:11               ` Bruce Richardson
2015-07-03  8:52                 ` Tetsuya Mukawa
2015-06-30  8:24             ` [dpdk-dev] [PATCH v7 10/12] eal: Consolidate pci uio functions " Tetsuya Mukawa
2015-06-30  8:24             ` [dpdk-dev] [PATCH v7 11/12] eal: Consolidate pci_map/unmap_device() " Tetsuya Mukawa
2015-06-30 14:45               ` Iremonger, Bernard
2015-07-06  6:24               ` [dpdk-dev] [PATCH v8 00/12] Clean up pci uio implementations Tetsuya Mukawa
2015-07-06  6:24                 ` [dpdk-dev] [PATCH v8 01/12] eal: Fix coding style of eal_pci.c and eal_pci_uio.c Tetsuya Mukawa
2015-07-07  8:04                   ` David Marchand
2015-07-08  2:42                     ` Tetsuya Mukawa
2015-07-06  6:24                 ` [dpdk-dev] [PATCH v8 02/12] eal: Close file descriptor of uio configuration Tetsuya Mukawa
2015-07-07  8:04                   ` David Marchand
2015-07-06  6:24                 ` [dpdk-dev] [PATCH v8 03/12] eal: Fix memory leaks and needless increment of pci_map_addr Tetsuya Mukawa
2015-07-07  8:04                   ` David Marchand
2015-07-08  2:42                     ` Tetsuya Mukawa
2015-07-06  6:24                 ` [dpdk-dev] [PATCH v8 04/12] eal/bsdapp: Change names of pci related data structure Tetsuya Mukawa
2015-07-07  8:04                   ` David Marchand
2015-07-06  6:24                 ` [dpdk-dev] [PATCH v8 05/12] eal: Fix uio mapping differences between linuxapp and bsdapp Tetsuya Mukawa
2015-07-07  8:04                   ` David Marchand
2015-07-08  2:42                     ` Tetsuya Mukawa
2015-07-06  6:24                 ` [dpdk-dev] [PATCH v8 06/12] eal: Add pci_uio_alloc_resource() Tetsuya Mukawa
2015-07-07  8:04                   ` David Marchand
2015-07-08  2:42                     ` Tetsuya Mukawa
2015-07-06  6:24                 ` [dpdk-dev] [PATCH v8 07/12] eal: Add pci_uio_map_resource_by_index() Tetsuya Mukawa
2015-07-07  8:05                   ` David Marchand
2015-07-08  2:42                     ` Tetsuya Mukawa
2015-07-06  6:24                 ` [dpdk-dev] [PATCH v8 08/12] eal: Consolidate pci_map and mapped_pci_resource of linuxapp and bsdapp Tetsuya Mukawa
2015-07-07  8:05                   ` David Marchand
2015-07-06  6:24                 ` [dpdk-dev] [PATCH v8 09/12] eal: Consolidate pci_map/unmap_resource() " Tetsuya Mukawa
2015-07-07  8:05                   ` David Marchand
2015-07-06  6:24                 ` [dpdk-dev] [PATCH v8 10/12] eal: Consolidate pci uio functions " Tetsuya Mukawa
2015-07-07  8:07                   ` David Marchand
2015-07-06  6:24                 ` [dpdk-dev] [PATCH v8 11/12] eal: Consolidate pci_map/unmap_device() " Tetsuya Mukawa
2015-07-07  8:06                   ` David Marchand
2015-07-08  2:42                     ` Tetsuya Mukawa
2015-07-08  8:27                       ` Thomas Monjalon
2015-07-08  8:50                         ` Tetsuya Mukawa
2015-07-06  6:24                 ` [dpdk-dev] [PATCH v8 12/12] eal: Consolidate rte_eal_pci_probe/close_one_driver() " Tetsuya Mukawa
2015-07-07  8:07                   ` David Marchand
2015-07-08 10:34               ` [dpdk-dev] [PATCH v9 00/12] Clean up pci uio implementations Tetsuya Mukawa
2015-07-08 10:34                 ` [dpdk-dev] [PATCH v9 01/12] eal: Fix coding style of eal_pci.c and eal_pci_uio.c Tetsuya Mukawa
2015-07-08 16:09                   ` Stephen Hemminger
2015-07-08 20:30                     ` Thomas Monjalon
2015-07-09  1:09                       ` Tetsuya Mukawa
2015-07-08 10:34                 ` [dpdk-dev] [PATCH v9 02/12] eal: Close file descriptor of uio configuration Tetsuya Mukawa
2015-07-08 10:34                 ` [dpdk-dev] [PATCH v9 03/12] eal: Fix memory leaks and needless increment of pci_map_addr Tetsuya Mukawa
2015-07-08 10:34                 ` [dpdk-dev] [PATCH v9 04/12] eal/bsdapp: Change names of pci related data structure Tetsuya Mukawa
2015-07-08 10:34                 ` [dpdk-dev] [PATCH v9 05/12] eal: Fix uio mapping differences between linuxapp and bsdapp Tetsuya Mukawa
2015-07-08 10:34                 ` [dpdk-dev] [PATCH v9 06/12] eal: Add pci_uio_alloc/free_resource() Tetsuya Mukawa
2015-07-08 10:34                 ` [dpdk-dev] [PATCH v9 07/12] eal: Add pci_uio_map_resource_by_index() Tetsuya Mukawa
2015-07-08 10:34                 ` [dpdk-dev] [PATCH v9 08/12] eal: Consolidate pci_map and mapped_pci_resource of linuxapp and bsdapp Tetsuya Mukawa
2015-07-08 10:34                 ` [dpdk-dev] [PATCH v9 09/12] eal: Consolidate pci_map/unmap_resource() " Tetsuya Mukawa
2015-07-08 10:34                 ` [dpdk-dev] [PATCH v9 10/12] eal: Consolidate pci uio functions " Tetsuya Mukawa
2015-07-08 10:34                 ` [dpdk-dev] [PATCH v9 11/12] eal: Consolidate pci_map/unmap_device() " Tetsuya Mukawa
2015-07-08 10:34                 ` [dpdk-dev] [PATCH v9 12/12] eal: Consolidate rte_eal_pci_probe/close_one_driver() " Tetsuya Mukawa
2015-07-08 12:36                 ` [dpdk-dev] [PATCH v9 00/12] Clean up pci uio implementations David Marchand
2015-07-08 21:52                   ` Thomas Monjalon
2015-06-30  8:24             ` [dpdk-dev] [PATCH v7 12/12] eal: Consolidate rte_eal_pci_probe/close_one_driver() of linuxapp and bsdapp Tetsuya Mukawa
2015-06-30 14:56               ` Iremonger, Bernard
2015-07-01  6:39                 ` Tetsuya Mukawa
2015-07-02 11:32             ` [dpdk-dev] [PATCH v7 00/12] Clean up pci uio implementations Bruce Richardson
2015-07-03  8:52               ` Tetsuya Mukawa
2015-06-26  8:18         ` [dpdk-dev] [PATCH v6 4/5] eal/bsdapp: Change names of pci related data structure Tetsuya Mukawa
2015-06-26 14:36           ` Iremonger, Bernard
2015-06-26  8:18         ` [dpdk-dev] [PATCH v6 5/5] eal: Fix uio mapping differences between linuxapp and bsdapp Tetsuya Mukawa
2015-06-26 14:42           ` Iremonger, Bernard
2015-06-25  3:19     ` [dpdk-dev] [PATCH v5 4/5] eal/bsdapp: Change names of pci related data structure Tetsuya Mukawa
2015-06-25  9:19       ` David Marchand
2015-06-25  3:19     ` [dpdk-dev] [PATCH v5 5/5] eal: Fix uio mapping differences between linuxapp and bsdapp Tetsuya Mukawa
2015-05-19  5:54 ` [dpdk-dev] [PATCH v4 2/5] eal: Close file descriptor of uio configuration Tetsuya Mukawa
2015-05-19 16:02   ` Stephen Hemminger
2015-05-19  5:54 ` [dpdk-dev] [PATCH v4 3/5] eal: Fix memory leaks and needless increment of pci_map_addr Tetsuya Mukawa
2015-06-15 14:29   ` Iremonger, Bernard
2015-06-15 15:05     ` Iremonger, Bernard
2015-05-19  5:54 ` [dpdk-dev] [PATCH v4 4/5] eal/bsdapp: Change names of pci related data structure Tetsuya Mukawa
2015-05-19  5:54 ` [dpdk-dev] [PATCH v4 5/5] eal: Fix uio mapping differences between linuxapp and bsdapp Tetsuya Mukawa
2015-06-15 14:31   ` Iremonger, Bernard
2015-06-15 15:08     ` Iremonger, Bernard
2015-06-15 15:17       ` Thomas Monjalon
2015-05-19  5:57 ` [dpdk-dev] [PATCH v4 0/5] Clean up pci uio implementations Tetsuya Mukawa

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