Messages in this thread | | | Date | Wed, 1 Aug 2012 15:38:35 +0200 | From | Lukas Hejtmanek <> | Subject | mellanox mlx4_core and SR-IOV |
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Hello,
I tried to use SR-IOV virtualizaton for Mellanox ConnectX2 card with mlx4_core driver with kernel 3.5.0. I built firware for the IB card with sriov_en = true, lspci shows: 02:00.0 InfiniBand: Mellanox Technologies MT26428 [ConnectX VPI PCIe 2.0 5GT/s - IB QDR / 10GigE] (rev b0) Subsystem: Super Micro Computer Inc Device 0048 Flags: bus master, fast devsel, latency 0, IRQ 24 Memory at fbd00000 (64-bit, non-prefetchable) [size=1M] Memory at f8800000 (64-bit, prefetchable) [size=8M] Capabilities: [40] Power Management version 3 Capabilities: [48] Vital Product Data Capabilities: [9c] MSI-X: Enable+ Count=128 Masked- Capabilities: [60] Express Endpoint, MSI 00 Capabilities: [100] Alternative Routing-ID Interpretation (ARI) Capabilities: [148] Device Serial Number 00-25-90-ff-ff-28-09-08 Capabilities: [108] Single Root I/O Virtualization (SR-IOV) Kernel driver in use: mlx4_core
however, the driver complains: [ 3.558221] mlx4_core 0000:02:00.0: Enabling sriov with:4 vfs [ 3.558296] mlx4_core 0000:02:00.0: not enough MMIO resources for SR-IOV (nres: 0, iov->nres: 1) [ 3.558299] mlx4_core 0000:02:00.0: Failed to enable sriov,continuing without sriov enabled (err = -12).
Is there any workaround for this? Or the bug is in BIOS and without a proper fix this is never gonna work?
Perhaps, are there any persons more suitable for these kind of questions?
-- Lukáš Hejtmánek -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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