On Tue, Feb 15, 2022 at 5:04 AM Jesper Dangaard Brouer <jbrouer@xxxxxxxxxx> wrote: > On 14/02/2022 19.10, Sophia Yoo wrote: > > I am relatively new to BPF/XDP [...] > I see you come for academia, so I will recommend reading our XDP paper > as a start: > https://github.com/xdp-project/xdp-paper > Title: “The eXpress Data Path: Fast Programmable Packet Processing in > the Operating System Kernel” which was presented at ACM CoNEXT 2018 on > December 5th, 2018. Cool! I had briefly read this paper before but didn't realize you and Toke were authors of this work. Great to chat with you. I'll also take a closer look at this paper again, it looks like a great resource. > [...] > > My NIC driver is Intel xgbe. I am using bcc to attach and load my xdp > > and tc programs. > This "xgbe" driver doesn't exist in the kernel tree under Intel. > Are you sure this is the correct driver? Whoops, I misspelled the driver name, the driver is actually "ixgbe" (confirmed with the output of "lspci -v"). 03:00.0 Ethernet controller: Intel Corporation Ethernet Connection X552 10 GbE SFP+ Subsystem: Intel Corporation Ethernet Connection X552 10 GbE SFP+ Physical Slot: 0-2 Flags: bus master, fast devsel, latency 0, IRQ 35, NUMA node 0 Memory at 383fffc00000 (64-bit, prefetchable) [size=2M] Memory at 383fffe04000 (64-bit, prefetchable) [size=16K] Expansion ROM at fb980000 [disabled] [size=512K] Capabilities: [40] Power Management version 3 Capabilities: [50] MSI: Enable- Count=1/1 Maskable+ 64bit+ Capabilities: [70] MSI-X: Enable+ Count=64 Masked- Capabilities: [a0] Express Endpoint, MSI 00 Capabilities: [100] Advanced Error Reporting Capabilities: [140] Device Serial Number 00-00-c9-ff-ff-00-00-00 Capabilities: [150] Alternative Routing-ID Interpretation (ARI) Capabilities: [160] Single Root I/O Virtualization (SR-IOV) Capabilities: [1b0] Access Control Services Capabilities: [1c0] Latency Tolerance Reporting Kernel driver in use: ixgbe Kernel modules: ixgbe --Sophia
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