Hi,
On 16/05/2025 10:10 AM, Gavin Li wrote:
In the mlx5_dev_spawn function, the Virtual Function (VF) synchronizes MAC
addresses from the kernel using netlink. It queries the netdev-configured
MACs and populates the list in the PMD device data, including multicast
MAC addresses. These addresses are later used for control flow creation,
allowing traffic for the listed MACs to be received. However, the Physical
Function (PF) does not synchronize with the kernel and thus does not add
any multicast MAC address rules when enabling traffic. This discrepancy
causes the IFF_ALLMULTI ioctl code to malfunction, as it fails to disable
all multicast traffic, leaving the VF still able to see it.
To align PF and VF behavior, only unicast MAC address flows should be
added.
Fixes: 272733b5ebfd ("net/mlx5: use flow to enable unicast traffic")
Cc: sta...@dpdk.org
Signed-off-by: Gavin Li <gav...@nvidia.com>
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Patch applied to next-net-mlx,
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Kindest regards
Raslan Darawsheh
