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From: David Marchand <david.marchand@redhat.com>
To: Nicolas Chautru <nicolas.chautru@intel.com>
Cc: dev <dev@dpdk.org>, Akhil Goyal <akhil.goyal@nxp.com>,
	 Thomas Monjalon <thomas@monjalon.net>
Subject: Re: [dpdk-dev] [PATCH v1] baseband/fpga_5gnr_fec: add companion PF config App
Date: Thu, 16 Jul 2020 11:40:10 +0200
Message-ID: <CAJFAV8z89Qh61tKG1Lgg8OHrY9hp5sbs-SHggnrJ_4o4o61Ceg@mail.gmail.com> (raw)
In-Reply-To: <1594419966-230753-2-git-send-email-nicolas.chautru@intel.com>

On Sat, Jul 11, 2020 at 12:28 AM Nicolas Chautru
<nicolas.chautru@intel.com> wrote:

[snip]

> +#define SYS_DIR "/sys/bus/pci/devices"
> +#define CUR_DIR "."
> +#define PREV_DIR ".."
> +
> +#define DRIVER_LINK  "driver"
> +#define DEVICE_FILE  "device"
> +#define VENDOR_FILE  "vendor"
> +#define BAR0_FILE    "resource0"
> +#define MAX_VFS_FILE "max_vfs"
> +
> +#define PCI_STR_SIZE 15
> +#define DEV_STR_SIZE 10
> +#define NULL_PAD     2
> +
> +/* Function Pointer for device specific configuration file */
> +typedef int (*configuration)(void *bar0addr, const char *arg_cfg_filename);
> +
> +typedef struct hw_device {
> +       const char *device_name;
> +       char *config_file;
> +       int vendor_id;
> +       int device_id;
> +       char pci_address[PCI_STR_SIZE];
> +       bool driver_found;
> +       configuration conf;
> +       char *num_vfs;
> +       int config_all;
> +} hw_device;
> +
> +static int
> +enable_vfs(const char *pci_addr, char *num_vfs)
> +{
> +       char maxvfspath[PATH_MAX];
> +       char fs_num_vfs[4] = {0, 0, 0, 0};
> +       int maxvfsfd;
> +
> +       snprintf(maxvfspath, sizeof(maxvfspath),
> +                       "%s/%s/%s", SYS_DIR, pci_addr, MAX_VFS_FILE);
> +       maxvfsfd = open(maxvfspath, O_RDWR | O_SYNC);

You should stop relying on igb_uio (reminder: it is going to move out
of the dpdk tree in 20.11) and use vfio vf token that got merged in
20.08.


-- 
David Marchand


  parent reply	other threads:[~2020-07-16  9:40 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-07-10 22:26 [dpdk-dev] [PATCH v1] BBDEV FPGA PF Config app Nicolas Chautru
2020-07-10 22:26 ` [dpdk-dev] [PATCH v1] baseband/fpga_5gnr_fec: add companion PF config App Nicolas Chautru
2020-07-16  8:56   ` Akhil Goyal
2020-07-16 18:14     ` Chautru, Nicolas
2020-07-16  9:40   ` David Marchand [this message]
2020-07-16 19:59     ` Chautru, Nicolas

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