[PATCH 3/7] net/txgbe: fix register polling

[Jiawen Wu]

Fix to poll some specific registers, which expect bit 0.

Fixes: 24a4c76aff4d ("net/txgbe: add error types and registers")
Cc: sta...@dpdk.org

Signed-off-by: Jiawen Wu <jiawe...@trustnetic.com>
---
 drivers/net/txgbe/base/txgbe_regs.h | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/drivers/net/txgbe/base/txgbe_regs.h 
b/drivers/net/txgbe/base/txgbe_regs.h
index 3139796911..911bb6e04e 100644
--- a/drivers/net/txgbe/base/txgbe_regs.h
+++ b/drivers/net/txgbe/base/txgbe_regs.h
@@ -1864,8 +1864,13 @@ po32m(struct txgbe_hw *hw, u32 reg, u32 mask, u32 
expect, u32 *actual,
        }
 
        do {
-               all |= rd32(hw, reg);
-               value |= mask & all;
+               if (expect != 0) {
+                       all |= rd32(hw, reg);
+                       value |= mask & all;
+               } else {
+                       all = rd32(hw, reg);
+                       value = mask & all;
+               }
                if (value == expect)
                        break;
 
@@ -1898,7 +1903,7 @@ po32m(struct txgbe_hw *hw, u32 reg, u32 mask, u32 expect, 
u32 *actual,
 
 #define wr32w(hw, reg, val, mask, slice) do { \
        wr32((hw), reg, val); \
-       po32m((hw), reg, mask, mask, NULL, 5, slice); \
+       po32m((hw), reg, mask, 0, NULL, 5, slice); \
 } while (0)
 
 #define TXGBE_XPCS_IDAADDR    0x13000
-- 
2.27.0