netdev - after adding > 200vlans to mlx nic no traffic

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Message-ID: <134b21d0-b299-674b-1e4d-c927f93e59c1@itcare.pl>
Date:   Tue, 30 Jan 2018 01:29:06 +0100
From:   Paweł Staszewski <pstaszewski@...are.pl>
To:     Linux Kernel Network Developers <netdev@...r.kernel.org>
Subject: after adding > 200vlans to mlx nic no traffic

Weird thing with mellanox mlx5 (connectx-4) kernel 4.15-rc9 - from 
net-next davem tree



after:

ip link add link enp175s0f1 name vlan1538 type vlan id 1538

ip link set up dev vlan1538


traffic on vlan is working


But after

VID="1160 1450 1451 1452 1453 1454 1455 1456 1457 1458 1459 1460 1461 
1462 1463 1464 1465 1466 1467 1468 1469 1470 1471 1472 1473 1474 1475 
1476 1477 1478 1479 1480 1481 1482 1483 1484 1485 1486 1487 1488 1489 
1490 1491 1492 1493 1494 1495 1496 1497 1498 1499 150
0 1501 1502 1503 1504 1505 1506 1507 1508 1509 1510 1511 1512 1513 1514 
1515 1516 1517 1518 1519 1520 1521 1522 1523 1524 1525 1526 1527 1528 
1529 1530 1531 1532 1534 1535 1394 1393 1550 1500 1526 1536 1537 1538 
1539 1540 1542 1541 1543 1544 1801 1546 1547 1548 1
549 1735 3132 3143 3104 3125 3103 3115 3134 3105 3113 3141 4009 3144 
3130 1803 3146 3148 3109 1551 1552 1553 1554 1555 1556 1558 1559 1560 
1561 1562 1563 1564 1565 1567 1568 1569 1570 1571 1572 1573 1574 1575 
1576 1577 1578 1579 1580 1581 1582 1583 1584 1585 1586
  1587 1588 1589 1591 1592 1593 1594 1595 1596 1597 1598 1599 1557 1545 
2001 250 4043 1806 1600 1602 1603 1604 1605 1606 1607 1608 1609 1610 
1611 1612 1613 1614 1615 1616 1617 1618 1619 1620 1621 1625 1626 1627 
1628 1629 1630 1631 1632 1634 1635 1636 1640 1641 164
2 1643 1644 1645 1646 1647 1648 1649 1650 1651 1652 1653 1654 1655 1656 
1657 1658 1659 1660 1661 1662 1663 1664 1665 1601 1666 1667 1668 1669 
1670 1671 1672 1673 1674 1676 1677 1678 1680 1681 1682 1683 1684 1685 
1686 1687 1688 1689 1690 1691 1692 1693 1694 1696 1
697 1698 1712 1817 1869 1810 1814 1818 1855 1856 1857 1858 1859 1860 
1861 1862 1863 1864 1865 1866 1867 1868 1870 1871 1872 1873 1874 1875 
1876 1877 1878 1879 1880 1885 1890 1891 1892 1893 1894 1895 1898 1881 
2190 2191 2192 2193 2194 2195 2196 2197 2198 2199 2541
  2542 2543 2544 2545 2546 2547 2548 2549 2550 2290"
for i in $VID
do
         ip link add link enp175s0f1 name vlan$i type vlan id $i
done


And setting vlan 1538 up - there is no received traffic on this vlan.



So searching for broken things (last time same problem was with ixgbe)

ethtool -K enp175s0f1 rx-vlan-filter off


And all vlans attached to this device start working