Re: [dpdk-dev] [PATCH v8 05/12] eal: Fix uio mapping differences between linuxapp and bsdapp

[Tetsuya Mukawa <mukawa@igel.co.jp>]

On 2015/07/07 17:04, David Marchand wrote:
> On Mon, Jul 6, 2015 at 8:24 AM, Tetsuya Mukawa <mukawa@igel.co.jp
> <mailto:mukawa@igel.co.jp>> wrote:
>
>     diff --git a/lib/librte_eal/bsdapp/eal/eal_pci.c
>     b/lib/librte_eal/bsdapp/eal/eal_pci.c
>     index 21d1e66..92d9886 100644
>     --- a/lib/librte_eal/bsdapp/eal/eal_pci.c
>     +++ b/lib/librte_eal/bsdapp/eal/eal_pci.c
>
>     @@ -170,19 +154,33 @@ pci_uio_map_secondary(struct rte_pci_device
>     *dev)
>             TAILQ_FOREACH(uio_res, uio_res_list, next) {
>
>                     /* skip this element if it doesn't match our PCI
>     address */
>     -               if (memcmp(&uio_res->pci_addr, &dev->addr,
>     sizeof(dev->addr)))
>     +               if (rte_eal_compare_pci_addr(&uio_res->pci_addr,
>     &dev->addr))
>                             continue;
>
>                     for (i = 0; i != uio_res->nb_maps; i++) {
>     -                       if (pci_map_resource(uio_res->maps[i].addr,
>     -                                            uio_res->path,
>     -                                           
>     (off_t)uio_res->maps[i].offset,
>     -                                           
>     (size_t)uio_res->maps[i].size)
>     -                           != uio_res->maps[i].addr) {
>     +                       /*
>     +                        * open devname, to mmap it
>     +                        */
>     +                       fd = open(uio_res->maps[i].path, O_RDWR);
>     +                       if (fd < 0) {
>     +                               RTE_LOG(ERR, EAL, "Cannot open %s:
>     %s\n",
>     +                                       uio_res->maps[i].path,
>     strerror(errno));
>     +                               return -1;
>     +                       }
>     +
>     +                       void *mapaddr =
>     pci_map_resource(uio_res->maps[i].addr,
>     +                                       fd,
>     (off_t)uio_res->maps[i].offset,
>     +                                     
>      (size_t)uio_res->maps[i].size, 0);
>
>
> I suppose you can close fd here

Yes, I will move close() here.

Tetsuya

>  
>
>     +                       if (mapaddr != uio_res->maps[i].addr) {
>                                     RTE_LOG(ERR, EAL,
>     -                                       "Cannot mmap device
>     resource\n");
>     +                                       "Cannot mmap device
>     resource file %s to address: %p\n",
>     +                                       uio_res->maps[i].path,
>     +                                       uio_res->maps[i].addr);
>     +                               close(fd);
>
>
> and remove it from here
>
>                                     return -1;
>                             }
>     +                       /* fd is not needed in slave process,
>     close it */
>     +                       close(fd);
>
>
> and here.
>
>
> The rest is ok for me.
> Acked-by: David Marchand <david.marchand@6wind.com
> <mailto:david.marchand@6wind.com>>
>
> -- 
> David Marchand