diff mbox

[dpdk-dev,13/28] fm10k: 1558 DIR_NEGATIVE bit is actually DIR_POSITIVE

Message ID 1441859917-26475-14-git-send-email-xiao.w.wang@intel.com (mailing list archive)
State Accepted, archived
Headers

Commit Message

Xiao Wang Sept. 10, 2015, 4:38 a.m. UTC 
  The SYSTIME_CFG.Adjust field has a Direction bit to indicate whether the
adjustment is positive or negative. However, we incorrectly read the
documentation and the direction bit should be set 1 when positive, not
when negative.

Signed-off-by: Wang Xiao W <xiao.w.wang@intel.com>
---
 drivers/net/fm10k/base/fm10k_pf.c   | 4 ++--
 drivers/net/fm10k/base/fm10k_type.h | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)
diff mbox

Patch

diff --git a/drivers/net/fm10k/base/fm10k_pf.c b/drivers/net/fm10k/base/fm10k_pf.c
index eb1adc9..86283fa 100644
--- a/drivers/net/fm10k/base/fm10k_pf.c
+++ b/drivers/net/fm10k/base/fm10k_pf.c
@@ -1927,8 +1927,8 @@  STATIC s32 fm10k_adjust_systime_pf(struct fm10k_hw *hw, s32 ppb)
 	if (systime_adjust > FM10K_SW_SYSTIME_ADJUST_MASK)
 		return FM10K_ERR_PARAM;
 
-	if (ppb < 0)
-		systime_adjust |= FM10K_SW_SYSTIME_ADJUST_DIR_NEGATIVE;
+	if (ppb > 0)
+		systime_adjust |= FM10K_SW_SYSTIME_ADJUST_DIR_POSITIVE;
 
 	FM10K_WRITE_SW_REG(hw, FM10K_SW_SYSTIME_ADJUST, (u32)systime_adjust);
 
diff --git a/drivers/net/fm10k/base/fm10k_type.h b/drivers/net/fm10k/base/fm10k_type.h
index a0e5f79..7966a03 100644
--- a/drivers/net/fm10k/base/fm10k_type.h
+++ b/drivers/net/fm10k/base/fm10k_type.h
@@ -486,7 +486,7 @@  struct fm10k_hw;
 #define FM10K_SW_SYSTIME_CFG_ADJUST_MASK	0xFF000000
 #define FM10K_SW_SYSTIME_ADJUST	0x0224D
 #define FM10K_SW_SYSTIME_ADJUST_MASK		0x3FFFFFFF
-#define FM10K_SW_SYSTIME_ADJUST_DIR_NEGATIVE	0x80000000
+#define FM10K_SW_SYSTIME_ADJUST_DIR_POSITIVE	0x80000000
 #define FM10K_SW_SYSTIME_PULSE(_n)	((_n) + 0x02252)
 
 #ifndef ETH_ALEN