217. Malicious driver event indication process in Intel® Ethernet 700 Series PF driver¶

Need modify the testpmd APP to generate invalid packets in tx only mode

diff --git a/app/test-pmd/txonly.c b/app/test-pmd/txonly.c
index 3caf281cb..448aab715 100644
--- a/app/test-pmd/txonly.c
+++ b/app/test-pmd/txonly.c
@@ -299,6 +299,11 @@ pkt_burst_transmit(struct fwd_stream *fs)
        if (nb_pkt == 0)
                return;

+        for (nb_pkt = 0; nb_pkt < nb_pkt_per_burst; nb_pkt++){
+                 pkts_burst[nb_pkt]->data_len = 15;
+         }
+
+
        nb_tx = rte_eth_tx_burst(fs->tx_port, fs->tx_queue, pkts_burst, nb_pkt);
        /*
         * Retry if necessary

217.1. Test Case1: Check log output when malicious driver events is detected¶

Generate i40e VF when PF is binded to igb_uio driver

echo 1 > /sys/bus/pci/devices/0000:18:00.1/max_vfs
Launch PF by testpmd

./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -c 0x03 -n 4 –file-prefix=test1 -a [pci of PF] – -i
Launch VF by testpmd

./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -c 0x03 -n 4 –file-prefix=lei1 -a [pci of VF] – -i > set fwd txonly > start
Check the PF can detect the VF’s unexpected behavior and output warning log

testpmd> i40e_dev_alarm_handler(): ICR0: malicious programming detected i40e_handle_mdd_event(): Malicious Driver Detection event 0x00 on TX queue 65 PF number 0x01 VF number 0x40 device 0000:18:00.1 i40e_handle_mdd_event(): TX driver issue detected on PF i40e_handle_mdd_event(): TX driver issue detected on VF 0 1times

Generate i40e VF when PF is binded to igb_uio driver

echo 1 > /sys/bus/pci/devices/0000:18:00.1/max_vfs
Launch PF by testpmd

./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -c 0x03 -n 4 –file-prefix=test1 -a [pci of PF] – -i
launch VF by testpmd and start txonly mode 3 times:

repeat following step 3 times ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -c 0x03 -n 4 –file-prefix=lei1 -a [pci of VF] – -i > set fwd txonly > start > quit
Check the PF can detect the malicious driver events number directly in the log: i40e_handle_mdd_event(): TX driver issue detected on VF 0 3times