diff options
| author |   Jan Sokolowski <jan.sokolowski@intel.com> | 2017-10-09 13:08:28 -0700 |
|---|---|---|
| committer |   Doug Ledford <dledford@redhat.com> | 2017-10-18 10:12:59 -0400 |
| commit | 242b494bf22be4056df1493664b00b5d0b238e53 (patch) | |
| tree | 475adac47526e042c52b406c1de026f974b3fcb1 /drivers/infiniband/hw/hfi1/chip.h | |
| parent | Linux 4.14-rc2 (diff) | |
| download | linux-dev-242b494bf22be4056df1493664b00b5d0b238e53.tar.xz linux-dev-242b494bf22be4056df1493664b00b5d0b238e53.zip | |
IB/hfi1: Fix serdes loopback set-up
Change serdes mode setting to use MISC_CONFIG_BITS in
VERIFY_CAP_LOCAL_LINK_WIDTH register. This method of
setting up serdes loopback is universally compatible
across all firmware versions.
Reviewed-by: Jakub Byczkowski <jakub.byczkowski@intel.com>
Signed-off-by: Jan Sokolowski <jan.sokolowski@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/chip.h')
| -rw-r--r-- | drivers/infiniband/hw/hfi1/chip.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/hfi1/chip.h b/drivers/infiniband/hw/hfi1/chip.h index b8345a60a0fb..45b645e892c9 100644 --- a/drivers/infiniband/hw/hfi1/chip.h +++ b/drivers/infiniband/hw/hfi1/chip.h @@ -582,6 +582,9 @@ enum { #define LOOPBACK_LCB 2 #define LOOPBACK_CABLE 3 /* external cable */ +/* set up serdes bit in MISC_CONFIG_BITS */ +#define LOOPBACK_SERDES_CONFIG_BIT_MASK_SHIFT 0 + /* read and write hardware registers */ u64 read_csr(const struct hfi1_devdata *dd, u32 offset); void write_csr(const struct hfi1_devdata *dd, u32 offset, u64 value); |