[dpdk-stable] [v2] net/fm10k: fix segment fault at calling fm10k_stats_get() from secondary process.

[dpdk-stable] [v2] net/fm10k: fix segment fault at calling fm10k_stats_get() from secondary process.

[Lu Qiuwen]

From 5658ee7d69023cc4b22315cd9f8e10a832aafdb0 Mon Sep 17 00:00:00 2001
From: Lu Qiuwen <luqiuwen@iie.ac.cn>
Date: Sat, 15 Jun 2019 14:28:01 +0800
Subject: [PATCH] net/fm10k: fix segment fault at calling fm10k_stats_get()
 from secondary process.

The function pointers in fm10k_stats_get() which setup from primary process, when secondary process call these function pointers, a segment fault will happend.

Signed-off-by: Lu Qiuwen <luqiuwen@iie.ac.cn>
---
 drivers/net/fm10k/base/fm10k_api.c | 20 ++++++++++++++++----
 drivers/net/fm10k/base/fm10k_pf.c  |  4 ++--
 drivers/net/fm10k/base/fm10k_pf.h  |  6 ++++++
 drivers/net/fm10k/base/fm10k_vf.c  |  4 ++--
 drivers/net/fm10k/base/fm10k_vf.h  |  5 +++++
 5 files changed, 31 insertions(+), 8 deletions(-)

diff --git a/drivers/net/fm10k/base/fm10k_api.c b/drivers/net/fm10k/base/fm10k_api.c
index c49d20dfb..e7b2fe710 100644
--- a/drivers/net/fm10k/base/fm10k_api.c
+++ b/drivers/net/fm10k/base/fm10k_api.c
@@ -234,8 +234,14 @@ s32 fm10k_read_mac_addr(struct fm10k_hw *hw)
  * */
 void fm10k_update_hw_stats(struct fm10k_hw *hw, struct fm10k_hw_stats *stats)
 {
-	if (hw->mac.ops.update_hw_stats)
-		hw->mac.ops.update_hw_stats(hw, stats);
+	switch (hw->mac.type) {
+	case fm10k_mac_pf:
+		return fm10k_update_hw_stats_pf(hw, stats);
+	case fm10k_mac_vf:
+		return fm10k_update_hw_stats_vf(hw, stats);
+	default:
+		break;
+	}
 }
 
 /**
@@ -246,8 +252,14 @@ void fm10k_update_hw_stats(struct fm10k_hw *hw, struct fm10k_hw_stats *stats)
  * */
 void fm10k_rebind_hw_stats(struct fm10k_hw *hw, struct fm10k_hw_stats *stats)
 {
-	if (hw->mac.ops.rebind_hw_stats)
-		hw->mac.ops.rebind_hw_stats(hw, stats);
+	switch (hw->mac.type) {
+	case fm10k_mac_pf:
+		return fm10k_rebind_hw_stats_pf(hw, stats);
+	case fm10k_mac_vf:
+		return fm10k_rebind_hw_stats_vf(hw, stats);
+	default:
+		break;
+	}
 }
 
 /**
diff --git a/drivers/net/fm10k/base/fm10k_pf.c b/drivers/net/fm10k/base/fm10k_pf.c
index db5f4912f..f5b6a9e2e 100644
--- a/drivers/net/fm10k/base/fm10k_pf.c
+++ b/drivers/net/fm10k/base/fm10k_pf.c
@@ -1511,7 +1511,7 @@ const struct fm10k_msg_data fm10k_iov_msg_data_pf[] = {
  *  This function collects and aggregates global and per queue hardware
  *  statistics.
  **/
-STATIC void fm10k_update_hw_stats_pf(struct fm10k_hw *hw,
+void fm10k_update_hw_stats_pf(struct fm10k_hw *hw,
 				     struct fm10k_hw_stats *stats)
 {
 	u32 timeout, ur, ca, um, xec, vlan_drop, loopback_drop, nodesc_drop;
@@ -1584,7 +1584,7 @@ STATIC void fm10k_update_hw_stats_pf(struct fm10k_hw *hw,
  *  This function resets the base for global and per queue hardware
  *  statistics.
  **/
-STATIC void fm10k_rebind_hw_stats_pf(struct fm10k_hw *hw,
+void fm10k_rebind_hw_stats_pf(struct fm10k_hw *hw,
 				     struct fm10k_hw_stats *stats)
 {
 	DEBUGFUNC("fm10k_rebind_hw_stats_pf");
diff --git a/drivers/net/fm10k/base/fm10k_pf.h b/drivers/net/fm10k/base/fm10k_pf.h
index ca125c273..2c22bdd02 100644
--- a/drivers/net/fm10k/base/fm10k_pf.h
+++ b/drivers/net/fm10k/base/fm10k_pf.h
@@ -184,4 +184,10 @@ extern const struct fm10k_msg_data fm10k_iov_msg_data_pf[];
 #endif
 
 s32 fm10k_init_ops_pf(struct fm10k_hw *hw);
+
+void fm10k_update_hw_stats_pf(struct fm10k_hw *hw,
+				     struct fm10k_hw_stats *stats);
+
+void fm10k_rebind_hw_stats_pf(struct fm10k_hw *hw,
+				     struct fm10k_hw_stats *stats);
 #endif /* _FM10K_PF_H */
diff --git a/drivers/net/fm10k/base/fm10k_vf.c b/drivers/net/fm10k/base/fm10k_vf.c
index bd449773a..2f4b5f5d2 100644
--- a/drivers/net/fm10k/base/fm10k_vf.c
+++ b/drivers/net/fm10k/base/fm10k_vf.c
@@ -526,7 +526,7 @@ const struct fm10k_tlv_attr fm10k_1588_msg_attr[] = {
  *
  *  This function collects and aggregates per queue hardware statistics.
  **/
-STATIC void fm10k_update_hw_stats_vf(struct fm10k_hw *hw,
+void fm10k_update_hw_stats_vf(struct fm10k_hw *hw,
 				     struct fm10k_hw_stats *stats)
 {
 	DEBUGFUNC("fm10k_update_hw_stats_vf");
@@ -541,7 +541,7 @@ STATIC void fm10k_update_hw_stats_vf(struct fm10k_hw *hw,
  *
  *  This function resets the base for queue hardware statistics.
  **/
-STATIC void fm10k_rebind_hw_stats_vf(struct fm10k_hw *hw,
+void fm10k_rebind_hw_stats_vf(struct fm10k_hw *hw,
 				     struct fm10k_hw_stats *stats)
 {
 	DEBUGFUNC("fm10k_rebind_hw_stats_vf");
diff --git a/drivers/net/fm10k/base/fm10k_vf.h b/drivers/net/fm10k/base/fm10k_vf.h
index 116c56fcc..d4edd330e 100644
--- a/drivers/net/fm10k/base/fm10k_vf.h
+++ b/drivers/net/fm10k/base/fm10k_vf.h
@@ -89,4 +89,9 @@ extern const struct fm10k_tlv_attr fm10k_1588_msg_attr[];
 	FM10K_MSG_HANDLER(FM10K_VF_MSG_ID_1588, fm10k_1588_msg_attr, func)
 
 s32 fm10k_init_ops_vf(struct fm10k_hw *hw);
+
+void fm10k_update_hw_stats_vf(struct fm10k_hw *hw,
+				     struct fm10k_hw_stats *stats);
+void fm10k_rebind_hw_stats_vf(struct fm10k_hw *hw,
+				     struct fm10k_hw_stats *stats);
 #endif /* _FM10K_VF_H */
-- 
2.20.1.windows.1