Re: [dpdk-dev] [PATCH v3] net/ixgbe: add support for VF MAC address add and remove

["Sun, GuinanX" <guinanx.sun@intel.com>]

Hi zhaowei

> -----Original Message-----
> From: Zhao1, Wei
> Sent: Friday, May 8, 2020 2:58 PM
> To: Sun, GuinanX <guinanx.sun@intel.com>; dev@dpdk.org
> Cc: Lu, Wenzhuo <wenzhuo.lu@intel.com>; Yang, Qiming
> <qiming.yang@intel.com>; Sun, GuinanX <guinanx.sun@intel.com>; Guo, Jia
> <jia.guo@intel.com>
> Subject: RE: [dpdk-dev] [PATCH v3] net/ixgbe: add support for VF MAC address
> add and remove
> 
> Hi, Guinan
> 
> There is a bug for this patch:
> The second input parameter of function hw->mac.ops.set_rar() should be index
> of MAC address register IXGBE_RAL/H.
> This index should be management by pf host for all the vf, not only index for one
> vf, or vf1 maybe overwrite this MAC address of vf0.
> Although this patch has been merged, please commit fix patch for it.
> 

I will double check for this function.
Thank you very much.

> 
> > -----Original Message-----
> > From: dev <dev-bounces@dpdk.org> On Behalf Of Guinan Sun
> > Sent: Tuesday, December 24, 2019 11:24 AM
> > To: dev@dpdk.org
> > Cc: Lu, Wenzhuo <wenzhuo.lu@intel.com>; Yang, Qiming
> > <qiming.yang@intel.com>; Sun, GuinanX <guinanx.sun@intel.com>
> > Subject: [dpdk-dev] [PATCH v3] net/ixgbe: add support for VF MAC
> > address add and remove
> >
> > Ixgbe PMD pf host code needs to support ixgbevf mac address add and remove.
> > For this purpose, a response was added between pf and vf to update the
> > mac address.
> >
> > Signed-off-by: Guinan Sun <guinanx.sun@intel.com>
> > ---
> > v3:
> > * Changed from `RTE_LOG` to `PMD_DRV_LOG`.
> > v2:
> > * Changed the title of commit message.
> > * Checked null in front of valid ether addr check.
> > ---
> >  drivers/net/ixgbe/ixgbe_ethdev.h |  1 +
> >  drivers/net/ixgbe/ixgbe_pf.c     | 35
> > ++++++++++++++++++++++++++++++++
> >  2 files changed, 36 insertions(+)
> >
> > diff --git a/drivers/net/ixgbe/ixgbe_ethdev.h
> > b/drivers/net/ixgbe/ixgbe_ethdev.h
> > index 76a1b9d18..e1cd8fd16 100644
> > --- a/drivers/net/ixgbe/ixgbe_ethdev.h
> > +++ b/drivers/net/ixgbe/ixgbe_ethdev.h
> > @@ -270,6 +270,7 @@ struct ixgbe_vf_info {  uint8_t api_version;
> > uint16_t switch_domain_id;  uint16_t xcast_mode;
> > +uint16_t mac_count;
> >  };
> >
> >  /*
> > diff --git a/drivers/net/ixgbe/ixgbe_pf.c
> > b/drivers/net/ixgbe/ixgbe_pf.c index
> > d0d85e138..c93c0fdc2 100644
> > --- a/drivers/net/ixgbe/ixgbe_pf.c
> > +++ b/drivers/net/ixgbe/ixgbe_pf.c
> > @@ -748,6 +748,37 @@ ixgbe_set_vf_mc_promisc(struct rte_eth_dev *dev,
> > uint32_t vf, uint32_t *msgbuf)  return 0;  }
> >
> > +static int
> > +ixgbe_set_vf_macvlan_msg(struct rte_eth_dev *dev, uint32_t vf,
> > +uint32_t
> > +*msgbuf) {
> > +struct ixgbe_hw *hw =
> > IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
> > +struct ixgbe_vf_info *vf_info =
> > +*(IXGBE_DEV_PRIVATE_TO_P_VFDATA(dev->data->dev_private));
> > +uint8_t *new_mac = (uint8_t *)(&msgbuf[1]); int index = (msgbuf[0] &
> > +IXGBE_VT_MSGINFO_MASK) >>
> > +    IXGBE_VT_MSGINFO_SHIFT;
> > +
> > +if (index) {
> > +if (new_mac == NULL)
> > +return -1;
> > +
> > +if (!rte_is_valid_assigned_ether_addr(
> > +(struct rte_ether_addr *)new_mac)) {
> > +PMD_DRV_LOG(ERR, "set invalid mac vf:%d\n", vf); return -1; }
> > +
> > +vf_info[vf].mac_count++;
> > +
> > +hw->mac.ops.set_rar(hw, vf_info[vf].mac_count,
> > +new_mac, vf, IXGBE_RAH_AV);
> > +} else {
> > +hw->mac.ops.clear_rar(hw, vf_info[vf].mac_count);
> > +vf_info[vf].mac_count = 0;
> > +}
> > +return 0;
> > +}
> > +
> >  static int
> >  ixgbe_rcv_msg_from_vf(struct rte_eth_dev *dev, uint16_t vf)  { @@
> > -835,6
> > +866,10 @@ ixgbe_rcv_msg_from_vf(struct rte_eth_dev *dev, uint16_t vf)
> >  if (retval == RTE_PMD_IXGBE_MB_EVENT_PROCEED)  retval =
> > ixgbe_set_vf_mc_promisc(dev, vf, msgbuf);  break;
> > +case IXGBE_VF_SET_MACVLAN:
> > +if (retval == RTE_PMD_IXGBE_MB_EVENT_PROCEED) retval =
> > +ixgbe_set_vf_macvlan_msg(dev, vf, msgbuf); break;
> >  default:
> >  PMD_DRV_LOG(DEBUG, "Unhandled Msg %8.8x", (unsigned)msgbuf[0]);
> > retval = IXGBE_ERR_MBX;
> > --
> > 2.17.1
>