Hi,
> -----Original Message-----
> From: Huang, Wei <wei.hu...@intel.com>
> Sent: Monday, March 27, 2023 5:42 AM
> To: dev@dpdk.org; tho...@monjalon.net; david.march...@redhat.com
> Cc: sta...@dpdk.org; Xu, Rosen <rosen...@intel.com>; Zhang, Tianfei
> <tianfei.zh...@intel.com>; Zhang, Qi Z <qi.z.zh...@intel.com>; Huang, Wei
> <wei.hu...@intel.com>
> Subject: [PATCH v1] raw/ifpga: check afu device before unplug
>
> AFU device may be already unplugged in IFPGA bus cleanup process, unplug
> AFU device only when it exists.
>
> Signed-off-by: Wei Huang <wei.hu...@intel.com>
> ---
> drivers/raw/ifpga/ifpga_rawdev.c | 16 +++++++++++++++-
> 1 file changed, 15 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/raw/ifpga/ifpga_rawdev.c
> b/drivers/raw/ifpga/ifpga_rawdev.c
> index 1020adc..0d43c87 100644
> --- a/drivers/raw/ifpga/ifpga_rawdev.c
> +++ b/drivers/raw/ifpga/ifpga_rawdev.c
> @@ -29,6 +29,7 @@
> #include <bus_vdev_driver.h>
> #include <rte_string_fns.h>
> #include <rte_pmd_i40e.h>
> +#include <bus_driver.h>
>
> #include "base/opae_hw_api.h"
> #include "base/opae_ifpga_hw_api.h"
> @@ -1832,12 +1833,19 @@ static int ifpga_rawdev_get_string_arg(const
> char *key __rte_unused,
> return ret;
> }
>
> +static int cmp_dev_name(const struct rte_device *dev, const void
> +*_name) {
> + const char *name = _name;
> + return strcmp(dev->name, name);
> +}
> +
> static int
> ifpga_cfg_remove(struct rte_vdev_device *vdev) {
> struct rte_rawdev *rawdev = NULL;
> struct ifpga_rawdev *ifpga_dev;
> struct ifpga_vdev_args args;
> + struct rte_bus *bus;
> char dev_name[RTE_RAWDEV_NAME_MAX_LEN];
> const char *vdev_name = NULL;
> char *tmp_vdev = NULL;
> @@ -1864,7 +1872,13 @@ static int ifpga_rawdev_get_string_arg(const char
> *key __rte_unused,
>
> snprintf(dev_name, RTE_RAWDEV_NAME_MAX_LEN, "%d|%s",
> args.port, args.bdf);
> - ret = rte_eal_hotplug_remove(RTE_STR(IFPGA_BUS_NAME),
> dev_name);
> + bus = rte_bus_find_by_name(RTE_STR(IFPGA_BUS_NAME));
> + if (bus) {
> + if (bus->find_device(NULL, cmp_dev_name, dev_name)) {
> + ret =
> rte_eal_hotplug_remove(RTE_STR(IFPGA_BUS_NAME),
> + dev_name);
> + }
> + }
>
> for (i = 0; i < IFPGA_MAX_VDEV; i++) {
> tmp_vdev = ifpga_dev->vdev_name[i];
> --
> 1.8.3.1
Reviewed-by: Rosen Xu <rosen...@intel.com>
