diff options
| author | Dean Luick <dean.luick@intel.com> | 2016-05-24 12:51:00 -0700 |
|---|---|---|
| committer | Doug Ledford <dledford@redhat.com> | 2016-05-26 12:21:10 -0400 |
| commit | f6de3d39cfc30387ce7dadb8542e4a635c706670 (patch) | |
| tree | be83d0a615a9a7038ae833369f000bb9b4c72336 | |
| parent | ce8b2fd0950ccc14440b02f05d2c7023608cfa76 (diff) | |
| download | linux-stable-f6de3d39cfc30387ce7dadb8542e4a635c706670.tar.gz | |
IB/hfi1: Correct 8051 link parameter settings
Two 8051 link settings, external device config and tuning method,
were written in the wrong location and the previous settings were
not cleared. For both, clear the old value and write the new
value.
Fixes: 8ebd4cf1852a ("staging/rdma/hfi1: Add active and optical cable support")
Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Dean Luick <dean.luick@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
| -rw-r--r-- | drivers/infiniband/hw/hfi1/chip.h | 6 | ||||
| -rw-r--r-- | drivers/infiniband/hw/hfi1/platform.c | 6 |
2 files changed, 10 insertions, 2 deletions
diff --git a/drivers/infiniband/hw/hfi1/chip.h b/drivers/infiniband/hw/hfi1/chip.h index 1948706fff1a95..66a327978739dd 100644 --- a/drivers/infiniband/hw/hfi1/chip.h +++ b/drivers/infiniband/hw/hfi1/chip.h @@ -398,6 +398,12 @@ /* Lane ID for general configuration registers */ #define GENERAL_CONFIG 4 +/* LINK_TUNING_PARAMETERS fields */ +#define TUNING_METHOD_SHIFT 24 + +/* LINK_OPTIMIZATION_SETTINGS fields */ +#define ENABLE_EXT_DEV_CONFIG_SHIFT 24 + /* LOAD_DATA 8051 command shifts and fields */ #define LOAD_DATA_FIELD_ID_SHIFT 40 #define LOAD_DATA_FIELD_ID_MASK 0xfull diff --git a/drivers/infiniband/hw/hfi1/platform.c b/drivers/infiniband/hw/hfi1/platform.c index ae0e4985cc7e94..03df9322f86298 100644 --- a/drivers/infiniband/hw/hfi1/platform.c +++ b/drivers/infiniband/hw/hfi1/platform.c @@ -540,7 +540,8 @@ static void apply_tunings( /* Enable external device config if channel is limiting active */ read_8051_config(ppd->dd, LINK_OPTIMIZATION_SETTINGS, GENERAL_CONFIG, &config_data); - config_data |= limiting_active; + config_data &= ~(0xff << ENABLE_EXT_DEV_CONFIG_SHIFT); + config_data |= ((u32)limiting_active << ENABLE_EXT_DEV_CONFIG_SHIFT); ret = load_8051_config(ppd->dd, LINK_OPTIMIZATION_SETTINGS, GENERAL_CONFIG, config_data); if (ret != HCMD_SUCCESS) @@ -553,7 +554,8 @@ static void apply_tunings( /* Pass tuning method to 8051 */ read_8051_config(ppd->dd, LINK_TUNING_PARAMETERS, GENERAL_CONFIG, &config_data); - config_data |= tuning_method; + config_data &= ~(0xff << TUNING_METHOD_SHIFT); + config_data |= ((u32)tuning_method << TUNING_METHOD_SHIFT); ret = load_8051_config(ppd->dd, LINK_TUNING_PARAMETERS, GENERAL_CONFIG, config_data); if (ret != HCMD_SUCCESS) |