Re: [dpdk-dev] [PATCH 1/3] i40evf: support I40E_VIRTCHNL_OP_CONFIG_VSI_QUEUES_EX in DPDK PF host

["Zhang, Helin" <helin.zhang@intel.com>]

Hi Thomas

> -----Original Message-----
> From: Thomas Monjalon [mailto:thomas.monjalon@6wind.com]
> Sent: Saturday, August 30, 2014 10:43 PM
> To: Zhang, Helin
> Cc: dev@dpdk.org
> Subject: Re: [dpdk-dev] [PATCH 1/3] i40evf: support
> I40E_VIRTCHNL_OP_CONFIG_VSI_QUEUES_EX in DPDK PF host
> 
> Hi Helin,
> 
> The title mention i40evf but the patch is related to PF (for VF communication).
> So I wonder wether it would be clearer to prefix it with i40e? Not sure.
> 
> 2014-08-20 11:33, Helin Zhang:
> > To configure VSI queues for VF, Linux PF host supports operation of
> > I40E_VIRTCHNL_OP_CONFIG_VSI_QUEUES with limited configurations. To
> > support more configurations (e.g configurable CRC stripping in VF), a
> > new operation of I40E_VIRTCHNL_OP_CONFIG_VSI_QUEUES_EX has been
> > supported in DPDK PF host.
> 
> This patch would be easier to read if you could split it in 3 patches:
> 1) renamings and line wrapping rework
> 2) introduction of new extended message/operation
> 3) crc config
> 
> > -	int ret = I40E_SUCCESS;
> > -	struct i40e_virtchnl_vsi_queue_config_info *qconfig =
> > -	    (struct i40e_virtchnl_vsi_queue_config_info *)msg;
> > -	int i;
> > -	struct i40e_virtchnl_queue_pair_info *qpair;
> > -
> > -	if (msg == NULL || msglen <= sizeof(*qconfig) ||
> > -		qconfig->num_queue_pairs > vsi->nb_qps) {
> > +	struct i40e_virtchnl_vsi_queue_config_info *vc_vqci =
> > +		(struct i40e_virtchnl_vsi_queue_config_info *)msg;
> > +	struct i40e_virtchnl_queue_pair_info *vc_qpi;
> > +	struct i40e_virtchnl_queue_pair_extra_info *vc_qpei = NULL;
> > +	int i, ret = I40E_SUCCESS;
> > +
> > +	if (msg == NULL || msglen <= sizeof(*vc_vqci) ||
> > +		vc_vqci->num_queue_pairs > vsi->nb_qps) {
> >  		PMD_DRV_LOG(ERR, "vsi_queue_config_info argument wrong\n");
> >  		ret = I40E_ERR_PARAM;
> >  		goto send_msg;
> >  	}
> >
> > -	qpair = qconfig->qpair;
> > -	for (i = 0; i < qconfig->num_queue_pairs; i++) {
> > -		if (qpair[i].rxq.queue_id > vsi->nb_qps - 1 ||
> > -			qpair[i].txq.queue_id > vsi->nb_qps - 1) {
> > +	vc_qpi = vc_vqci->qpair;
> > +	if (opcode == I40E_VIRTCHNL_OP_CONFIG_VSI_QUEUES_EX)
> > +		vc_qpei = (struct i40e_virtchnl_queue_pair_extra_info *)
> > +						(((uint8_t *)vc_qpi) +
> > +			(sizeof(struct i40e_virtchnl_queue_pair_info) *
> > +					vc_vqci->num_queue_pairs));
> > +
> > +	for (i = 0; i < vc_vqci->num_queue_pairs; i++) {
> > +		if (vc_qpi[i].rxq.queue_id > vsi->nb_qps - 1 ||
> > +			vc_qpi[i].txq.queue_id > vsi->nb_qps - 1) {
> >  			ret = I40E_ERR_PARAM;
> >  			goto send_msg;
> >  		}
> 
> Mixing renaming and new feature makes it difficult to read.
> 
> >  	case I40E_VIRTCHNL_OP_ENABLE_QUEUES:
> >  		PMD_DRV_LOG(INFO, "OP_ENABLE_QUEUES received\n");
> > -		i40e_pf_host_process_cmd_enable_queues(vf,
> > -						msg, msglen);
> > +		i40e_pf_host_process_cmd_enable_queues(vf, msg, msglen);
> >  		break;
> >  	case I40E_VIRTCHNL_OP_DISABLE_QUEUES:
> >  		PMD_DRV_LOG(INFO, "OP_DISABLE_QUEUE received\n");
> > -		i40e_pf_host_process_cmd_disable_queues(vf,
> > -						msg, msglen);
> > +		i40e_pf_host_process_cmd_disable_queues(vf, msg, msglen);
> >  		break;
> >  	case I40E_VIRTCHNL_OP_ADD_ETHER_ADDRESS:
> >  		PMD_DRV_LOG(INFO, "OP_ADD_ETHER_ADDRESS received\n");
> > -		i40e_pf_host_process_cmd_add_ether_address(vf,
> > -						msg, msglen);
> > +		i40e_pf_host_process_cmd_add_ether_address(vf, msg, msglen);
> >  		break;
> >  	case I40E_VIRTCHNL_OP_DEL_ETHER_ADDRESS:
> >  		PMD_DRV_LOG(INFO, "OP_DEL_ETHER_ADDRESS received\n");
> > -		i40e_pf_host_process_cmd_del_ether_address(vf,
> > -						msg, msglen);
> > +		i40e_pf_host_process_cmd_del_ether_address(vf, msg, msglen);
> >  		break;
> >  	case I40E_VIRTCHNL_OP_ADD_VLAN:
> >  		PMD_DRV_LOG(INFO, "OP_ADD_VLAN received\n"); @@ -932,10
> +951,9 @@
> > i40e_pf_host_handle_vf_msg(struct rte_eth_dev *dev,
> >  	case I40E_VIRTCHNL_OP_FCOE:
> >  		PMD_DRV_LOG(ERR, "OP_FCOE received, not supported\n");
> >  	default:
> > -		PMD_DRV_LOG(ERR, "%u received, not supported\n",
> > -							opcode);
> > -		i40e_pf_host_send_msg_to_vf(vf, opcode,
> > -				I40E_ERR_PARAM, NULL, 0);
> > +		PMD_DRV_LOG(ERR, "%u received, not supported\n", opcode);
> > +		i40e_pf_host_send_msg_to_vf(vf, opcode, I40E_ERR_PARAM,
> > +								NULL, 0);
> >  		break;
> >  	}
> 
> Line wrapping should go in a cleanup patch (like renaming).
> 
> Thanks
> --
> Thomas

Thank you very much! I have reworked the patches and sent out again.

Regards,
Helin