[PATCH v2 net-next 03/12] net: enetc: relocate SR-IOV configuration helper for common PF support

[Wei Fang <wei.fang@nxp.com>]

Move enetc_sriov_configure() from enetc_pf.c to enetc_msg.c to prepare
for integrating enetc_msg.c into the enetc-pf-common driver, where it
will be shared between ENETC v1 and v4 PF drivers.

Since enetc_msg_psi_init() and enetc_msg_psi_free() are now only called
from enetc_sriov_configure() within the same file, make them static.

Signed-off-by: Wei Fang <wei.fang@nxp.com>
---
 .../net/ethernet/freescale/enetc/enetc_msg.c  | 40 ++++++++++++++++++-
 .../net/ethernet/freescale/enetc/enetc_pf.c   | 40 -------------------
 .../net/ethernet/freescale/enetc/enetc_pf.h   |  3 --
 .../freescale/enetc/enetc_pf_common.h         |  9 +++++
 4 files changed, 47 insertions(+), 45 deletions(-)

diff --git a/drivers/net/ethernet/freescale/enetc/enetc_msg.c b/drivers/net/ethernet/freescale/enetc/enetc_msg.c
index 73da2018034e..fd1a42bbdcb1 100644
--- a/drivers/net/ethernet/freescale/enetc/enetc_msg.c
+++ b/drivers/net/ethernet/freescale/enetc/enetc_msg.c
@@ -189,7 +189,7 @@ static void enetc_msg_free_mbx(struct enetc_si *si, int idx)
 	memset(msg, 0, sizeof(*msg));
 }
 
-int enetc_msg_psi_init(struct enetc_pf *pf)
+static int enetc_msg_psi_init(struct enetc_pf *pf)
 {
 	struct enetc_si *si = pf->si;
 	int vector, i, err;
@@ -229,7 +229,7 @@ int enetc_msg_psi_init(struct enetc_pf *pf)
 	return err;
 }
 
-void enetc_msg_psi_free(struct enetc_pf *pf)
+static void enetc_msg_psi_free(struct enetc_pf *pf)
 {
 	struct enetc_si *si = pf->si;
 	int i;
@@ -248,3 +248,39 @@ void enetc_msg_psi_free(struct enetc_pf *pf)
 	for (i = 0; i < pf->num_vfs; i++)
 		enetc_msg_free_mbx(si, i);
 }
+
+int enetc_sriov_configure(struct pci_dev *pdev, int num_vfs)
+{
+	struct enetc_si *si = pci_get_drvdata(pdev);
+	struct enetc_pf *pf = enetc_si_priv(si);
+	int err;
+
+	if (!num_vfs) {
+		pci_disable_sriov(pdev);
+		enetc_msg_psi_free(pf);
+		pf->num_vfs = 0;
+	} else {
+		pf->num_vfs = num_vfs;
+
+		err = enetc_msg_psi_init(pf);
+		if (err) {
+			dev_err(&pdev->dev, "enetc_msg_psi_init (%d)\n", err);
+			goto err_msg_psi;
+		}
+
+		err = pci_enable_sriov(pdev, num_vfs);
+		if (err) {
+			dev_err(&pdev->dev, "pci_enable_sriov err %d\n", err);
+			goto err_en_sriov;
+		}
+	}
+
+	return num_vfs;
+
+err_en_sriov:
+	enetc_msg_psi_free(pf);
+err_msg_psi:
+	pf->num_vfs = 0;
+
+	return err;
+}
diff --git a/drivers/net/ethernet/freescale/enetc/enetc_pf.c b/drivers/net/ethernet/freescale/enetc/enetc_pf.c
index 67cc80adec72..fbe2c126082e 100644
--- a/drivers/net/ethernet/freescale/enetc/enetc_pf.c
+++ b/drivers/net/ethernet/freescale/enetc/enetc_pf.c
@@ -480,46 +480,6 @@ static void enetc_configure_port(struct enetc_pf *pf)
 	enetc_port_wr(hw, ENETC_PMR, ENETC_PMR_EN);
 }
 
-#ifdef CONFIG_PCI_IOV
-static int enetc_sriov_configure(struct pci_dev *pdev, int num_vfs)
-{
-	struct enetc_si *si = pci_get_drvdata(pdev);
-	struct enetc_pf *pf = enetc_si_priv(si);
-	int err;
-
-	if (!num_vfs) {
-		pci_disable_sriov(pdev);
-		enetc_msg_psi_free(pf);
-		pf->num_vfs = 0;
-	} else {
-		pf->num_vfs = num_vfs;
-
-		err = enetc_msg_psi_init(pf);
-		if (err) {
-			dev_err(&pdev->dev, "enetc_msg_psi_init (%d)\n", err);
-			goto err_msg_psi;
-		}
-
-		err = pci_enable_sriov(pdev, num_vfs);
-		if (err) {
-			dev_err(&pdev->dev, "pci_enable_sriov err %d\n", err);
-			goto err_en_sriov;
-		}
-	}
-
-	return num_vfs;
-
-err_en_sriov:
-	enetc_msg_psi_free(pf);
-err_msg_psi:
-	pf->num_vfs = 0;
-
-	return err;
-}
-#else
-#define enetc_sriov_configure(pdev, num_vfs)	(void)0
-#endif
-
 static int enetc_pf_set_features(struct net_device *ndev,
 				 netdev_features_t features)
 {
diff --git a/drivers/net/ethernet/freescale/enetc/enetc_pf.h b/drivers/net/ethernet/freescale/enetc/enetc_pf.h
index 3b265ad8d845..5b4094f8d5d4 100644
--- a/drivers/net/ethernet/freescale/enetc/enetc_pf.h
+++ b/drivers/net/ethernet/freescale/enetc/enetc_pf.h
@@ -68,6 +68,3 @@ struct enetc_pf {
 
 #define phylink_to_enetc_pf(config) \
 	container_of((config), struct enetc_pf, phylink_config)
-
-int enetc_msg_psi_init(struct enetc_pf *pf);
-void enetc_msg_psi_free(struct enetc_pf *pf);
diff --git a/drivers/net/ethernet/freescale/enetc/enetc_pf_common.h b/drivers/net/ethernet/freescale/enetc/enetc_pf_common.h
index cef9fcc58e2f..c9b3512d4e2f 100644
--- a/drivers/net/ethernet/freescale/enetc/enetc_pf_common.h
+++ b/drivers/net/ethernet/freescale/enetc/enetc_pf_common.h
@@ -21,3 +21,12 @@ static inline u16 enetc_get_ip_revision(struct enetc_hw *hw)
 {
 	return enetc_global_rd(hw, ENETC_G_EIPBRR0) & EIPBRR0_REVISION;
 }
+
+#if IS_ENABLED(CONFIG_PCI_IOV)
+int enetc_sriov_configure(struct pci_dev *pdev, int num_vfs);
+#else
+static inline int enetc_sriov_configure(struct pci_dev *pdev, int num_vfs)
+{
+	return 0;
+}
+#endif
-- 
2.34.1