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Currently we *always* wait 2 seconds before starting controller initialization during attach. This works around an issue where some older Intel NVMe SSDs could not handle MMIO writes too soon after a PCIe FLR (which would be triggered when VFIO was enabled). After further discussion with Intel experts, we know the SSD models that exhibit this issue. So we can quirk this so that only the older SSDs incur the extra delay. Signed-off-by: Jim Harris <james.r.harris@intel.com> Change-Id: Ieb408c24f6afd5bd5147d1c87239aa20f2d13511 Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/466064 Tested-by: SPDK CI Jenkins <sys_sgci@intel.com> Reviewed-by: Ben Walker <benjamin.walker@intel.com> Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com> Reviewed-by: Broadcom SPDK FC-NVMe CI <spdk-ci.pdl@broadcom.com> |
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