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From d9c44cf1a757823fb069dea0c15a830513175bf3 Mon Sep 17 00:00:00 2001
From: Calvin Johnson <calvin.johnson@nxp.com>
Date: Wed, 20 Jun 2018 10:23:01 +0530
Subject: [PATCH] staging: fsl_ppfe/eth: define pfe ndo_change_mtu function
Define ndo_change_mtu function for pfe. This sets the max Rx frame
length to the new mtu.
Signed-off-by: Calvin Johnson <calvin.johnson@nxp.com>
---
drivers/staging/fsl_ppfe/include/pfe/pfe.h | 1 +
drivers/staging/fsl_ppfe/pfe_eth.c | 12 ++++++++++++
drivers/staging/fsl_ppfe/pfe_hal.c | 11 +++++++++++
3 files changed, 24 insertions(+)
--- a/drivers/staging/fsl_ppfe/include/pfe/pfe.h
+++ b/drivers/staging/fsl_ppfe/include/pfe/pfe.h
@@ -303,6 +303,7 @@ void gemac_allow_broadcast(void *base);
void gemac_no_broadcast(void *base);
void gemac_enable_1536_rx(void *base);
void gemac_disable_1536_rx(void *base);
+void gemac_set_rx_max_fl(void *base, int mtu);
void gemac_enable_rx_jmb(void *base);
void gemac_disable_rx_jmb(void *base);
void gemac_enable_stacked_vlan(void *base);
--- a/drivers/staging/fsl_ppfe/pfe_eth.c
+++ b/drivers/staging/fsl_ppfe/pfe_eth.c
@@ -1345,6 +1345,17 @@ static int pfe_eth_event_handler(void *d
return 0;
}
+static int pfe_eth_change_mtu(struct net_device *ndev, int new_mtu)
+{
+ struct pfe_eth_priv_s *priv = netdev_priv(ndev);
+
+ ndev->mtu = new_mtu;
+ new_mtu += ETH_HLEN + ETH_FCS_LEN;
+ gemac_set_rx_max_fl(priv->EMAC_baseaddr, new_mtu);
+
+ return 0;
+}
+
/* pfe_eth_open
*/
static int pfe_eth_open(struct net_device *ndev)
@@ -2246,6 +2257,7 @@ static const struct net_device_ops pfe_n
.ndo_set_rx_mode = pfe_eth_set_multi,
.ndo_set_mac_address = pfe_eth_set_mac_address,
.ndo_validate_addr = eth_validate_addr,
+ .ndo_change_mtu = pfe_eth_change_mtu,
.ndo_get_stats = pfe_eth_get_stats,
.ndo_set_features = pfe_eth_set_features,
};
--- a/drivers/staging/fsl_ppfe/pfe_hal.c
+++ b/drivers/staging/fsl_ppfe/pfe_hal.c
@@ -1017,6 +1017,17 @@ void gemac_enable_1536_rx(void *base)
| (1536 << 16), base + EMAC_RCNTRL_REG);
}
+/* GEMAC set rx Max frame length.
+ * @param[in] base GEMAC base address
+ * @param[in] mtu new mtu
+ */
+void gemac_set_rx_max_fl(void *base, int mtu)
+{
+ /* Set mtu as Maximum frame length */
+ writel((readl(base + EMAC_RCNTRL_REG) & PFE_RCR_MAX_FL_MASK)
+ | (mtu << 16), base + EMAC_RCNTRL_REG);
+}
+
/* GEMAC enable jumbo function.
* @param[in] base GEMAC base address
*/
|
