• Prasanna S Panchamukhi's avatar
    e1000e: MSI interrupt test failed, using legacy interrupt · 569a3aff
    Prasanna S Panchamukhi authored
    Following logs where seen on Systems with multiple NICs,
    while using MSI interrupts as shown below:
    
    Feb 16 15:09:32 (none) user.notice kernel: 0000:00:0d.0: lan0_0: NIC Link is Up
    1000 Mbps Full Duplex, Flow Control: RX/TX
    Feb 16 15:09:32 (none) user.notice kernel: 0000:40:0d.0: wan0_1: NIC Link is Up
    1000 Mbps Full Duplex, Flow Control: RX/TX
    Feb 16 15:09:32 (none) user.notice kernel: 0000:40:0d.0: lan0_1: NIC Link is Up
    1000 Mbps Full Duplex, Flow Control: RX/TX
    Feb 16 15:09:32 (none) user.warn kernel: 0000:40:0e.0: wan4_0: MSI interrupt
    test failed, using legacy interrupt.
    Feb 16 15:09:32 (none) user.notice kernel: 0000:00:0e.0: wan1_0: NIC Link is Up
    1000 Mbps Full Duplex, Flow Control: RX/TX
    Feb 16 15:09:33 (none) user.notice kernel: 0000:00:0e.0: lan1_0: NIC Link is Up
    1000 Mbps Full Duplex, Flow Control: RX/TX
    Feb 16 15:09:33 (none) user.notice kernel: 0000:00:0f.0: wan2_0: NIC Link is Up
    1000 Mbps Full Duplex, Flow Control: RX/TX
    Feb 16 15:09:33 (none) user.notice kernel: 0000:00:0f.0: lan2_0: NIC Link is Up
    1000 Mbps Full Duplex, Flow Control: RX/TX
    Feb 16 15:09:33 (none) user.notice kernel: 0000:40:0a.0: wan3_0: NIC Link is Up
    1000 Mbps Full Duplex, Flow Control: RX/TX
    Feb 16 15:09:33 (none) user.notice kernel: 0000:40:0a.0: lan3_0: NIC Link is Up
    1000 Mbps Full Duplex, Flow Control: RX/TX
    Feb 16 15:09:34 (none) user.notice kernel: 0000:40:0e.0: lan4_0: NIC Link is Up
    1000 Mbps Full Duplex, Flow Control: RX/TX
    Feb 16 15:09:34 (none) user.notice kernel: 0000:40:0f.0: wan5_0: NIC Link is Up
    1000 Mbps Full Duplex, Flow Control: RX/TX
    Feb 16 15:09:34 (none) user.notice kernel: 0000:40:0f.0: lan5_0: NIC Link is Up
    1000 Mbps Full Duplex, Flow Control: RX/TX
    
    This patch fixes this problem by increasing the msleep from 50 to 100.
    Signed-off-by: default avatarPrasanna S Panchamukhi <ppanchamukhi@riverbed.com>
    Tested-by: default avatarAaron Brown <aaron.f.brown@intel.com>
    Signed-off-by: default avatarJeff Kirsher <jeffrey.t.kirsher@intel.com>
    569a3aff
netdev.c 183 KB