From: Qiming Yang <qiming.yang@intel.com>
Date: Wed, 10 Jan 2018 16:04:36 +0000 (+0800)
Subject: net/ixgbe/base: clear sync register during init
X-Git-Tag: spdx-start~437
X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=20410e43944045a5f5b37d318b73dc7d2e0b7150;p=dpdk.git

net/ixgbe/base: clear sync register during init

This patch clears software resource bits in synchronization
register and updates host interface resource bit error case for
X540. It also fixes compile warnings of using GCC 7.

Signed-off-by: Qiming Yang <qiming.yang@intel.com>
Acked-by: Wenzhuo Lu <wenzhuo.lu@intel.com>
---

diff --git a/drivers/net/ixgbe/base/ixgbe_82599.c b/drivers/net/ixgbe/base/ixgbe_82599.c
index d9d11a8ec1..d382a60dfe 100644
--- a/drivers/net/ixgbe/base/ixgbe_82599.c
+++ b/drivers/net/ixgbe/base/ixgbe_82599.c
@@ -1739,15 +1739,17 @@ s32 ixgbe_fdir_set_input_mask_82599(struct ixgbe_hw *hw,
 
 	switch (IXGBE_NTOHS(input_mask->formatted.vlan_id) & 0xEFFF) {
 	case 0x0000:
-		/* mask VLAN ID, fall through to mask VLAN priority */
+		/* mask VLAN ID */
 		fdirm |= IXGBE_FDIRM_VLANID;
+		/* fall through */
 	case 0x0FFF:
 		/* mask VLAN priority */
 		fdirm |= IXGBE_FDIRM_VLANP;
 		break;
 	case 0xE000:
-		/* mask VLAN ID only, fall through */
+		/* mask VLAN ID only */
 		fdirm |= IXGBE_FDIRM_VLANID;
+		/* fall through */
 	case 0xEFFF:
 		/* no VLAN fields masked */
 		break;
@@ -1758,8 +1760,9 @@ s32 ixgbe_fdir_set_input_mask_82599(struct ixgbe_hw *hw,
 
 	switch (input_mask->formatted.flex_bytes & 0xFFFF) {
 	case 0x0000:
-		/* Mask Flex Bytes, fall through */
+		/* Mask Flex Bytes */
 		fdirm |= IXGBE_FDIRM_FLEX;
+		/* fall through */
 	case 0xFFFF:
 		break;
 	default:
@@ -2024,6 +2027,7 @@ s32 ixgbe_fdir_add_perfect_filter_82599(struct ixgbe_hw *hw,
 			DEBUGOUT(" Error on src/dst port\n");
 			return IXGBE_ERR_CONFIG;
 		}
+		/* fall through */
 	case IXGBE_ATR_FLOW_TYPE_TCPV4:
 	case IXGBE_ATR_FLOW_TYPE_TUNNELED_TCPV4:
 	case IXGBE_ATR_FLOW_TYPE_UDPV4:
diff --git a/drivers/net/ixgbe/base/ixgbe_common.c b/drivers/net/ixgbe/base/ixgbe_common.c
index 8831b347d1..34f2f5d9bb 100644
--- a/drivers/net/ixgbe/base/ixgbe_common.c
+++ b/drivers/net/ixgbe/base/ixgbe_common.c
@@ -264,7 +264,7 @@ s32 ixgbe_setup_fc_generic(struct ixgbe_hw *hw)
 		if (ret_val != IXGBE_SUCCESS)
 			goto out;
 
-		/* only backplane uses autoc so fall though */
+		/* fall through - only backplane uses autoc */
 	case ixgbe_media_type_fiber_qsfp:
 	case ixgbe_media_type_fiber:
 		reg = IXGBE_READ_REG(hw, IXGBE_PCS1GANA);
@@ -4750,7 +4750,7 @@ void ixgbe_set_rxpba_generic(struct ixgbe_hw *hw, int num_pb, u32 headroom,
 		rxpktsize <<= IXGBE_RXPBSIZE_SHIFT;
 		for (; i < (num_pb / 2); i++)
 			IXGBE_WRITE_REG(hw, IXGBE_RXPBSIZE(i), rxpktsize);
-		/* Fall through to configure remaining packet buffers */
+		/* fall through - configure remaining packet buffers */
 	case PBA_STRATEGY_EQUAL:
 		rxpktsize = (pbsize / (num_pb - i)) << IXGBE_RXPBSIZE_SHIFT;
 		for (; i < num_pb; i++)
diff --git a/drivers/net/ixgbe/base/ixgbe_x540.c b/drivers/net/ixgbe/base/ixgbe_x540.c
index ef29a9b41b..716664bbb6 100644
--- a/drivers/net/ixgbe/base/ixgbe_x540.c
+++ b/drivers/net/ixgbe/base/ixgbe_x540.c
@@ -807,14 +807,6 @@ s32 ixgbe_acquire_swfw_sync_X540(struct ixgbe_hw *hw, u32 mask)
 		msec_delay(5);
 	}
 
-	/* Failed to get SW only semaphore */
-	if (swmask == IXGBE_GSSR_SW_MNG_SM) {
-		ERROR_REPORT1(IXGBE_ERROR_POLLING,
-			     "Failed to get SW only semaphore");
-		DEBUGOUT("Failed to get SW only semaphore, returning IXGBE_ERR_SWFW_SYNC\n");
-		return IXGBE_ERR_SWFW_SYNC;
-	}
-
 	/* If the resource is not released by the FW/HW the SW can assume that
 	 * the FW/HW malfunctions. In that case the SW should set the SW bit(s)
 	 * of the requested resource(s) while ignoring the corresponding FW/HW
@@ -839,7 +831,8 @@ s32 ixgbe_acquire_swfw_sync_X540(struct ixgbe_hw *hw, u32 mask)
 	 */
 	if (swfw_sync & swmask) {
 		u32 rmask = IXGBE_GSSR_EEP_SM | IXGBE_GSSR_PHY0_SM |
-			    IXGBE_GSSR_PHY1_SM | IXGBE_GSSR_MAC_CSR_SM;
+			    IXGBE_GSSR_PHY1_SM | IXGBE_GSSR_MAC_CSR_SM |
+			    IXGBE_GSSR_SW_MNG_SM;
 
 		if (swi2c_mask)
 			rmask |= IXGBE_GSSR_I2C_MASK;
@@ -973,14 +966,25 @@ STATIC void ixgbe_release_swfw_sync_semaphore(struct ixgbe_hw *hw)
  **/
 void ixgbe_init_swfw_sync_X540(struct ixgbe_hw *hw)
 {
+	u32 rmask;
+
 	/* First try to grab the semaphore but we don't need to bother
-	 * looking to see whether we got the lock or  not since we do
+	 * looking to see whether we got the lock or not since we do
 	 * the same thing regardless of whether we got the lock or not.
 	 * We got the lock - we release it.
 	 * We timeout trying to get the lock - we force its release.
 	 */
 	ixgbe_get_swfw_sync_semaphore(hw);
 	ixgbe_release_swfw_sync_semaphore(hw);
+
+	/* Acquire and release all software resources. */
+	rmask = IXGBE_GSSR_EEP_SM | IXGBE_GSSR_PHY0_SM |
+		IXGBE_GSSR_PHY1_SM | IXGBE_GSSR_MAC_CSR_SM |
+		IXGBE_GSSR_SW_MNG_SM;
+
+	rmask |= IXGBE_GSSR_I2C_MASK;
+	ixgbe_acquire_swfw_sync_X540(hw, rmask);
+	ixgbe_release_swfw_sync_X540(hw, rmask);
 }
 
 /**