[dpdk-dev] [PATCH 02/18] ixgbe: Clean up IXGBE base codes

[Ouyang Changchun <changchun.ouyang@intel.com>]

This patch cleans up some IXGBE base codes, such as remove unnecessary return statement,
and reduce goto statement etc.

Signed-off-by: Changchun Ouyang <changchun.ouyang@intel.com>
---
 lib/librte_pmd_ixgbe/ixgbe/ixgbe_82598.c     | 2 --
 lib/librte_pmd_ixgbe/ixgbe/ixgbe_82599.c     | 7 +++----
 lib/librte_pmd_ixgbe/ixgbe/ixgbe_common.c    | 2 +-
 lib/librte_pmd_ixgbe/ixgbe/ixgbe_common.h    | 2 --
 lib/librte_pmd_ixgbe/ixgbe/ixgbe_dcb_82598.c | 2 ++
 lib/librte_pmd_ixgbe/ixgbe/ixgbe_dcb_82599.c | 1 +
 lib/librte_pmd_ixgbe/ixgbe/ixgbe_phy.c       | 3 ++-
 7 files changed, 9 insertions(+), 10 deletions(-)

diff --git a/lib/librte_pmd_ixgbe/ixgbe/ixgbe_82598.c b/lib/librte_pmd_ixgbe/ixgbe/ixgbe_82598.c
index ee2217d..c8ce893 100644
--- a/lib/librte_pmd_ixgbe/ixgbe/ixgbe_82598.c
+++ b/lib/librte_pmd_ixgbe/ixgbe/ixgbe_82598.c
@@ -1417,8 +1417,6 @@ STATIC void ixgbe_set_rxpba_82598(struct ixgbe_hw *hw, int num_pb,
 	/* Setup Tx packet buffer sizes */
 	for (i = 0; i < IXGBE_MAX_PACKET_BUFFERS; i++)
 		IXGBE_WRITE_REG(hw, IXGBE_TXPBSIZE(i), IXGBE_TXPBSIZE_40KB);
-
-	return;
 }
 
 /**
diff --git a/lib/librte_pmd_ixgbe/ixgbe/ixgbe_82599.c b/lib/librte_pmd_ixgbe/ixgbe/ixgbe_82599.c
index 835331b..046a35e 100644
--- a/lib/librte_pmd_ixgbe/ixgbe/ixgbe_82599.c
+++ b/lib/librte_pmd_ixgbe/ixgbe/ixgbe_82599.c
@@ -2103,7 +2103,7 @@ s32 ixgbe_identify_phy_82599(struct ixgbe_hw *hw)
 	if (status != IXGBE_SUCCESS) {
 		/* 82599 10GBASE-T requires an external PHY */
 		if (hw->mac.ops.get_media_type(hw) == ixgbe_media_type_copper)
-			goto out;
+			return status;
 		else
 			status = ixgbe_identify_module_generic(hw);
 	}
@@ -2111,14 +2111,13 @@ s32 ixgbe_identify_phy_82599(struct ixgbe_hw *hw)
 	/* Set PHY type none if no PHY detected */
 	if (hw->phy.type == ixgbe_phy_unknown) {
 		hw->phy.type = ixgbe_phy_none;
-		status = IXGBE_SUCCESS;
+		return IXGBE_SUCCESS;
 	}
 
 	/* Return error if SFP module has been detected but is not supported */
 	if (hw->phy.type == ixgbe_phy_sfp_unsupported)
-		status = IXGBE_ERR_SFP_NOT_SUPPORTED;
+		return IXGBE_ERR_SFP_NOT_SUPPORTED;
 
-out:
 	return status;
 }
 
diff --git a/lib/librte_pmd_ixgbe/ixgbe/ixgbe_common.c b/lib/librte_pmd_ixgbe/ixgbe/ixgbe_common.c
index 8084659..e36b3a8 100644
--- a/lib/librte_pmd_ixgbe/ixgbe/ixgbe_common.c
+++ b/lib/librte_pmd_ixgbe/ixgbe/ixgbe_common.c
@@ -1060,7 +1060,7 @@ s32 ixgbe_stop_adapter_generic(struct ixgbe_hw *hw)
 	hw->adapter_stopped = true;
 
 	/* Disable the receive unit */
-	IXGBE_WRITE_REG(hw, IXGBE_RXCTRL, 0);
+	ixgbe_disable_rx(hw);
 
 	/* Clear interrupt mask to stop interrupts from being generated */
 	IXGBE_WRITE_REG(hw, IXGBE_EIMC, IXGBE_IRQ_CLEAR_MASK);
diff --git a/lib/librte_pmd_ixgbe/ixgbe/ixgbe_common.h b/lib/librte_pmd_ixgbe/ixgbe/ixgbe_common.h
index 80e47c1..8ee1dba 100644
--- a/lib/librte_pmd_ixgbe/ixgbe/ixgbe_common.h
+++ b/lib/librte_pmd_ixgbe/ixgbe/ixgbe_common.h
@@ -41,9 +41,7 @@ POSSIBILITY OF SUCH DAMAGE.
 		IXGBE_WRITE_REG(hw, reg, (u32) value); \
 		IXGBE_WRITE_REG(hw, reg + 4, (u32) (value >> 32)); \
 	} while (0)
-#ifndef IXGBE_REMOVED
 #define IXGBE_REMOVED(a) (0)
-#endif /* IXGBE_REMOVED */
 struct ixgbe_pba {
 	u16 word[2];
 	u16 *pba_block;
diff --git a/lib/librte_pmd_ixgbe/ixgbe/ixgbe_dcb_82598.c b/lib/librte_pmd_ixgbe/ixgbe/ixgbe_dcb_82598.c
index 52c7e72..a6161cd 100644
--- a/lib/librte_pmd_ixgbe/ixgbe/ixgbe_dcb_82598.c
+++ b/lib/librte_pmd_ixgbe/ixgbe/ixgbe_dcb_82598.c
@@ -347,6 +347,8 @@ s32 ixgbe_dcb_hw_config_82598(struct ixgbe_hw *hw, int link_speed,
 			      u16 *refill, u16 *max, u8 *bwg_id,
 			      u8 *tsa)
 {
+	UNREFERENCED_1PARAMETER(link_speed);
+
 	ixgbe_dcb_config_rx_arbiter_82598(hw, refill, max, tsa);
 	ixgbe_dcb_config_tx_desc_arbiter_82598(hw, refill, max, bwg_id,
 					       tsa);
diff --git a/lib/librte_pmd_ixgbe/ixgbe/ixgbe_dcb_82599.c b/lib/librte_pmd_ixgbe/ixgbe/ixgbe_dcb_82599.c
index 2bcf1c7..e754d1a 100644
--- a/lib/librte_pmd_ixgbe/ixgbe/ixgbe_dcb_82599.c
+++ b/lib/librte_pmd_ixgbe/ixgbe/ixgbe_dcb_82599.c
@@ -580,6 +580,7 @@ s32 ixgbe_dcb_hw_config_82599(struct ixgbe_hw *hw, int link_speed,
 			      u16 *refill, u16 *max, u8 *bwg_id, u8 *tsa,
 			      u8 *map)
 {
+	UNREFERENCED_1PARAMETER(link_speed);
 
 	ixgbe_dcb_config_rx_arbiter_82599(hw, refill, max, bwg_id, tsa,
 					  map);
diff --git a/lib/librte_pmd_ixgbe/ixgbe/ixgbe_phy.c b/lib/librte_pmd_ixgbe/ixgbe/ixgbe_phy.c
index 7d2ed2a..4271f70 100644
--- a/lib/librte_pmd_ixgbe/ixgbe/ixgbe_phy.c
+++ b/lib/librte_pmd_ixgbe/ixgbe/ixgbe_phy.c
@@ -1804,7 +1804,7 @@ STATIC s32 ixgbe_get_i2c_ack(struct ixgbe_hw *hw)
 		ack = ixgbe_get_i2c_data(&i2cctl);
 
 		usec_delay(1);
-		if (ack == 0)
+		if (!ack)
 			break;
 	}
 
@@ -1886,6 +1886,7 @@ STATIC s32 ixgbe_clock_out_i2c_bit(struct ixgbe_hw *hw, bool data)
 
 	return status;
 }
+
 /**
  *  ixgbe_raise_i2c_clk - Raises the I2C SCL clock
  *  @hw: pointer to hardware structure
-- 
1.8.4.2