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