[dpdk-dev] [PATCH v3] net/i40e: disable source pruning

[Jiang, YuX]

> -----Original Message-----
> From: dev <dev-bounces at dpdk.org> On Behalf Of Alvin Zhang
> Sent: Wednesday, October 20, 2021 9:29 AM
> To: Xing, Beilei <beilei.xing at intel.com>; Guo, Junfeng
> <junfeng.guo at intel.com>
> Cc: dev at dpdk.org; Zhang, AlvinX <alvinx.zhang at intel.com>
> Subject: [dpdk-dev] [PATCH v3] net/i40e: disable source pruning
> 
> VRRP advertisement packets are dropped on i40e PF devices because when
> a MAC address is added to a device, packets originating from that MAC
> address are dropped.
> 
> This patch adds a devarg to support disabling source pruning to work around
> above issue.
> 
> Bugzilla ID: 648
> 
> Signed-off-by: Alvin Zhang <alvinx.zhang at intel.com>
> ---
Tested-by:  Yu Jiang <YuX.Jiang at intel.com>

Verified patchset http://patches.dpdk.org/project/dpdk/patch/20211020012831.8480-1-alvinx.zhang@intel.com/ on baseline dpdk22.03-rc1:ecc0dd455e "raw/cnxk_gpio: add option to select subset of GPIOs"
Tested pass on Ethernet Controller XL710 for 40GbE QSFP+ 1583, OS: Fedora Linux 35/5.14.10-300.fc35.x86_64
Test step as below:
 ./dpdk-testpmd -l 1,2 -n 1 -a 18:00.0,disable_source_pruning=1 -- -i
 pkt = Ether(src="00:00:5E:00:01:0A")/IP()/Raw("x"*60)
 test steps:
1). testpmd>set verbose 1
    testpmd>start
2). Send the pkt, the pkt can be received by testpmd
3). testpmd>mac_addr add 0 00:00:5E:00:01:0A 
4). Re-send the pkt, the pkt still can be received by testpmd.