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-rw-r--r--drivers/infiniband/hw/hfi1/chip.h6
-rw-r--r--drivers/infiniband/hw/hfi1/platform.c6
2 files changed, 10 insertions, 2 deletions
diff --git a/drivers/infiniband/hw/hfi1/chip.h b/drivers/infiniband/hw/hfi1/chip.h
index 1948706fff1a..66a327978739 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 ae0e4985cc7e..03df9322f862 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)