Function iavf_check_api_version

dpdk/drivers/net/iavf/iavf_vchnl.c:645–692

Check API version with sync wait until version read from admin queue */

/* Check API version with sync wait until version read from admin queue */
int
iavf_check_api_version(struct iavf_adapter *adapter)
{
	struct iavf_info *vf = IAVF_DEV_PRIVATE_TO_VF(adapter);
	struct virtchnl_version_info version, *pver;
	struct iavf_cmd_info args;
	int err;

	version.major = VIRTCHNL_VERSION_MAJOR;
	version.minor = VIRTCHNL_VERSION_MINOR;

	args.ops = VIRTCHNL_OP_VERSION;
	args.in_args = (uint8_t *)&version;
	args.in_args_size = sizeof(version);
	args.out_buffer = vf->aq_resp;
	args.out_size = IAVF_AQ_BUF_SZ;

	err = iavf_execute_vf_cmd_safe(adapter, &args, 0);
	if (err) {
		PMD_INIT_LOG(ERR, "Fail to execute command of OP_VERSION");
		return err;
	}

	pver = (struct virtchnl_version_info *)args.out_buffer;
	vf->virtchnl_version = *pver;

	if (vf->virtchnl_version.major < VIRTCHNL_VERSION_MAJOR_START ||
	    (vf->virtchnl_version.major == VIRTCHNL_VERSION_MAJOR_START &&
	     vf->virtchnl_version.minor < VIRTCHNL_VERSION_MINOR_START)) {
		PMD_INIT_LOG(ERR, "VIRTCHNL API version should not be lower"
			     " than (%u.%u) to support Adaptive VF",
			     VIRTCHNL_VERSION_MAJOR_START,
			     VIRTCHNL_VERSION_MAJOR_START);
		return -1;
	} else if (vf->virtchnl_version.major > VIRTCHNL_VERSION_MAJOR ||
		   (vf->virtchnl_version.major == VIRTCHNL_VERSION_MAJOR &&
		    vf->virtchnl_version.minor > VIRTCHNL_VERSION_MINOR)) {
		PMD_INIT_LOG(ERR, "PF/VF API version mismatch:(%u.%u)-(%u.%u)",
			     vf->virtchnl_version.major,
			     vf->virtchnl_version.minor,
			     VIRTCHNL_VERSION_MAJOR,
			     VIRTCHNL_VERSION_MINOR);
		return -1;
	}

	PMD_DRV_LOG(DEBUG, "Peer is supported PF host");
	return 0;
}

int
iavf_get_vf_resource(struct iavf_adapter *adapter)