[dpdk-dev] [PATCH v2 3/7] net/ice: initiate to acquire the DCF capability

[Wang, Haiyue]

> -----Original Message-----
> From: Ye, Xiaolong <xiaolong.ye at intel.com>
> Sent: Friday, March 13, 2020 13:52
> To: Wang, Haiyue <haiyue.wang at intel.com>
> Cc: dev at dpdk.org; Zhang, Qi Z <qi.z.zhang at intel.com>; Yang, Qiming <qiming.yang at intel.com>; Xing,
> Beilei <beilei.xing at intel.com>; Zhao1, Wei <wei.zhao1 at intel.com>
> Subject: Re: [PATCH v2 3/7] net/ice: initiate to acquire the DCF capability
> 
> For the subject, since this patch is about acquire + disable, how about
> 
> net/ice: support DCF capability acquire/disable

Make sense, will improve the title.
> 
> On 03/10, Haiyue Wang wrote:
> >Since the DCF (Device Config Function) controls the flow setting of
> >other VFs by the mailbox with PF, for security, it needs to acquire
> >the DCF capability from PF when starts, and exits to disable it.
> 
> s/exits to disable it/disable it when exits
> 

OK.

> >
> >Signed-off-by: Haiyue Wang <haiyue.wang at intel.com>
> >---
> > drivers/net/ice/ice_dcf.c | 28 +++++++++++++++++++++++++++-
> > 1 file changed, 27 insertions(+), 1 deletion(-)
> >
> >diff --git a/drivers/net/ice/ice_dcf.c b/drivers/net/ice/ice_dcf.c
> >index efb258a5a..7a3626939 100644
> >--- a/drivers/net/ice/ice_dcf.c
> >+++ b/drivers/net/ice/ice_dcf.c
> >@@ -227,7 +227,7 @@ ice_dcf_get_vf_resource(struct ice_dcf_hw *hw)
> > 	int err, i;
> >
> > 	caps = VIRTCHNL_VF_OFFLOAD_WB_ON_ITR | VIRTCHNL_VF_OFFLOAD_RX_POLLING |
> >-	       VIRTCHNL_VF_CAP_ADV_LINK_SPEED |
> >+	       VIRTCHNL_VF_CAP_ADV_LINK_SPEED | VIRTCHNL_VF_CAP_DCF |
> > 	       VF_BASE_MODE_OFFLOADS;
> >
> > 	err = ice_dcf_send_cmd_req_no_irq(hw, VIRTCHNL_OP_GET_VF_RESOURCES,
> >@@ -264,6 +264,31 @@ ice_dcf_get_vf_resource(struct ice_dcf_hw *hw)
> > 	return 0;
> > }
> >
> >+static int
> >+ice_dcf_mode_disable(struct ice_dcf_hw *hw)
> >+{
> >+	int err;
> >+
> >+	err = ice_dcf_send_cmd_req_no_irq(hw, VIRTCHNL_OP_DCF_DISABLE,
> >+					  NULL, 0);
> >+	if (err) {
> >+		PMD_DRV_LOG(ERR, "Fail to send msg OP_DCF_DISABLE");
> >+		return err;
> >+	}
> >+
> >+	err = ice_dcf_recv_cmd_rsp_no_irq(hw, VIRTCHNL_OP_DCF_DISABLE,
> >+					  (uint8_t *)hw->arq_buf,
> >+					  ICE_DCF_AQ_BUF_SZ, NULL);
> >+	if (err) {
> >+		PMD_DRV_LOG(ERR,
> >+			    "Fail to get response of OP_DCF_DISABLE %d",
> >+			    err);
> >+		return -1;
> >+	}
> >+
> >+	return 0;
> >+}
> >+
> > static int
> > ice_dcf_check_reset_done(struct ice_dcf_hw *hw)
> > {
> >@@ -467,6 +492,7 @@ ice_dcf_uninit_hw(struct rte_eth_dev *eth_dev, struct ice_dcf_hw *hw)
> > 	rte_intr_callback_unregister(intr_handle,
> > 				     ice_dcf_dev_interrupt_handler, hw);
> >
> >+	ice_dcf_mode_disable(hw);
> > 	iavf_shutdown_adminq(&hw->avf);
> >
> > 	rte_free(hw->arq_buf);
> >--
> >2.25.1
> >
> 
> For the patch,
> 
> Reviewed-by: Xiaolong Ye <xiaolong.ye at intel.com>