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| author | Easwar Hariharan <easwar.hariharan@intel.com> | 2017-02-08 14:26:14 +0100 |
|---|---|---|
| committer | Doug Ledford <dledford@redhat.com> | 2017-02-19 15:18:34 +0100 |
| commit | 39e2afa8d042a53d855137d4c5a689a6f5492b39 (patch) | |
| tree | bccf63e704c48cb76a506410d61e420d69f79b34 /drivers/infiniband/hw/hfi1/qp.c | |
| parent | IB/hfi1: Ensure read of producer s_head is correct (diff) | |
| download | linux-39e2afa8d042a53d855137d4c5a689a6f5492b39.tar.xz linux-39e2afa8d042a53d855137d4c5a689a6f5492b39.zip | |
IB/hfi1: Use static CTLE with Preset 6 for integrated HFIs
After extended testing, it was found that the previous PCIe Gen
3 recipe, which used adaptive CTLE with Preset 4, could cause an
NMI/Surprise Link Down in about 1 in 100 to 1 in 1000 power cycles on
some platforms. New EV data combined with extensive empirical data
indicates that the new recipe should use static CTLE with Preset 6 for
all integrated silicon SKUs.
Fixes: c3f8de0b334c ("IB/hfi1: Add static PCIe Gen3 CTLE tuning")
Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Easwar Hariharan <easwar.hariharan@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'drivers/infiniband/hw/hfi1/qp.c')
0 files changed, 0 insertions, 0 deletions