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Date: Thu, 31 Mar 2011 13:01:35 +0200 (CEST)
From: Michał Mirosław <mirq-linux@...e.qmqm.pl>
To: netdev@...r.kernel.org
Cc: Guo-Fu Tseng <cooldavid@...ldavid.org>
Subject: [PATCH] jme: convert offload constraints to ndo_fix_features
Signed-off-by: Michał Mirosław <mirq-linux@...e.qmqm.pl>
---
drivers/net/jme.c | 77 +++++++++++++----------------------------------------
drivers/net/jme.h | 2 -
2 files changed, 19 insertions(+), 60 deletions(-)
This is an example conversion to hw_features and friends for MTU-based
offload disabling.
If there are some changes needed, I'll leave that to you as I don't have
the hardware to test this on.
diff --git a/drivers/net/jme.c b/drivers/net/jme.c
index 994c809..be4773f 100644
--- a/drivers/net/jme.c
+++ b/drivers/net/jme.c
@@ -2230,17 +2230,9 @@ jme_change_mtu(struct net_device *netdev, int new_mtu)
jme_restart_rx_engine(jme);
}
- if (new_mtu > 1900) {
- netdev->features &= ~(NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM |
- NETIF_F_TSO | NETIF_F_TSO6);
- } else {
- if (test_bit(JME_FLAG_TXCSUM, &jme->flags))
- netdev->features |= NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM;
- if (test_bit(JME_FLAG_TSO, &jme->flags))
- netdev->features |= NETIF_F_TSO | NETIF_F_TSO6;
- }
-
netdev->mtu = new_mtu;
+ netdev_update_features(netdev);
+
jme_reset_link(jme);
return 0;
@@ -2640,19 +2632,20 @@ jme_set_msglevel(struct net_device *netdev, u32 value)
}
static u32
-jme_get_rx_csum(struct net_device *netdev)
+jme_fix_features(struct net_device *netdev, u32 features)
{
- struct jme_adapter *jme = netdev_priv(netdev);
- return jme->reg_rxmcs & RXMCS_CHECKSUM;
+ if (netdev->mtu > 1900)
+ features &= ~(NETIF_F_ALL_TSO | NETIF_F_ALL_CSUM);
+ return features;
}
static int
-jme_set_rx_csum(struct net_device *netdev, u32 on)
+jme_set_features(struct net_device *netdev, u32 features)
{
struct jme_adapter *jme = netdev_priv(netdev);
spin_lock_bh(&jme->rxmcs_lock);
- if (on)
+ if (features & NETIF_F_RXCSUM)
jme->reg_rxmcs |= RXMCS_CHECKSUM;
else
jme->reg_rxmcs &= ~RXMCS_CHECKSUM;
@@ -2663,42 +2656,6 @@ jme_set_rx_csum(struct net_device *netdev, u32 on)
}
static int
-jme_set_tx_csum(struct net_device *netdev, u32 on)
-{
- struct jme_adapter *jme = netdev_priv(netdev);
-
- if (on) {
- set_bit(JME_FLAG_TXCSUM, &jme->flags);
- if (netdev->mtu <= 1900)
- netdev->features |=
- NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM;
- } else {
- clear_bit(JME_FLAG_TXCSUM, &jme->flags);
- netdev->features &=
- ~(NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM);
- }
-
- return 0;
-}
-
-static int
-jme_set_tso(struct net_device *netdev, u32 on)
-{
- struct jme_adapter *jme = netdev_priv(netdev);
-
- if (on) {
- set_bit(JME_FLAG_TSO, &jme->flags);
- if (netdev->mtu <= 1900)
- netdev->features |= NETIF_F_TSO | NETIF_F_TSO6;
- } else {
- clear_bit(JME_FLAG_TSO, &jme->flags);
- netdev->features &= ~(NETIF_F_TSO | NETIF_F_TSO6);
- }
-
- return 0;
-}
-
-static int
jme_nway_reset(struct net_device *netdev)
{
struct jme_adapter *jme = netdev_priv(netdev);
@@ -2839,11 +2796,6 @@ static const struct ethtool_ops jme_ethtool_ops = {
.get_link = jme_get_link,
.get_msglevel = jme_get_msglevel,
.set_msglevel = jme_set_msglevel,
- .get_rx_csum = jme_get_rx_csum,
- .set_rx_csum = jme_set_rx_csum,
- .set_tx_csum = jme_set_tx_csum,
- .set_tso = jme_set_tso,
- .set_sg = ethtool_op_set_sg,
.nway_reset = jme_nway_reset,
.get_eeprom_len = jme_get_eeprom_len,
.get_eeprom = jme_get_eeprom,
@@ -2903,6 +2855,8 @@ static const struct net_device_ops jme_netdev_ops = {
.ndo_change_mtu = jme_change_mtu,
.ndo_tx_timeout = jme_tx_timeout,
.ndo_vlan_rx_register = jme_vlan_rx_register,
+ .ndo_fix_features = jme_fix_features,
+ .ndo_set_features = jme_set_features,
};
static int __devinit
@@ -2957,6 +2911,12 @@ jme_init_one(struct pci_dev *pdev,
netdev->netdev_ops = &jme_netdev_ops;
netdev->ethtool_ops = &jme_ethtool_ops;
netdev->watchdog_timeo = TX_TIMEOUT;
+ netdev->hw_features = NETIF_F_IP_CSUM |
+ NETIF_F_IPV6_CSUM |
+ NETIF_F_SG |
+ NETIF_F_TSO |
+ NETIF_F_TSO6 |
+ NETIF_F_RXCSUM;
netdev->features = NETIF_F_IP_CSUM |
NETIF_F_IPV6_CSUM |
NETIF_F_SG |
@@ -3040,8 +3000,9 @@ jme_init_one(struct pci_dev *pdev,
jme->reg_txpfc = 0;
jme->reg_pmcs = PMCS_MFEN;
jme->reg_gpreg1 = GPREG1_DEFAULT;
- set_bit(JME_FLAG_TXCSUM, &jme->flags);
- set_bit(JME_FLAG_TSO, &jme->flags);
+
+ if (jme->reg_rxmcs & RXMCS_CHECKSUM)
+ netdev->features |= NETIF_F_RXCSUM;
/*
* Get Max Read Req Size from PCI Config Space
diff --git a/drivers/net/jme.h b/drivers/net/jme.h
index 8bf3045..e9aaeca 100644
--- a/drivers/net/jme.h
+++ b/drivers/net/jme.h
@@ -468,8 +468,6 @@ struct jme_adapter {
enum jme_flags_bits {
JME_FLAG_MSI = 1,
JME_FLAG_SSET = 2,
- JME_FLAG_TXCSUM = 3,
- JME_FLAG_TSO = 4,
JME_FLAG_POLL = 5,
JME_FLAG_SHUTDOWN = 6,
};
--
1.7.2.5
--
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