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net: bnx2x: convert to hw_features

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Since ndo_fix_features callback is postponing features change when
bp->recovery_state != BNX2X_RECOVERY_DONE, netdev_update_features()
has to be called again when this condition changes. Previously,
ethtool_ops->set_flags callback returned -EBUSY in that case
(it's not possible in the new model).

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>

v5: - don't delay set_features, as it's rtnl_locked - same as recovery process
v4: - complete bp->rx_csum -> NETIF_F_RXCSUM conversion
    - add check for failed ndo_set_features in ndo_open callback
v3: - include NETIF_F_LRO in hw_features
    - don't call netdev_update_features() if bnx2x_nic_load() failed
v2: - comment in ndo_fix_features callback
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Michał Mirosław 2011-04-12 09:38:23 +00:00 committed by David S. Miller
parent e5ee20e70f
commit 66371c4413
5 changed files with 57 additions and 118 deletions
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1
drivers/net/bnx2x/bnx2x.h
View File

@ -918,7 +918,6 @@ struct bnx2x {
int tx_ring_size;
u32 rx_csum;
/* L2 header size + 2*VLANs (8 bytes) + LLC SNAP (8 bytes) */
#define ETH_OVREHEAD (ETH_HLEN + 8 + 8)
#define ETH_MIN_PACKET_SIZE 60

49
drivers/net/bnx2x/bnx2x_cmn.c
View File

@ -640,7 +640,7 @@ int bnx2x_rx_int(struct bnx2x_fastpath *fp, int budget)
skb_checksum_none_assert(skb);
if (bp->rx_csum) {
if (bp->dev->features & NETIF_F_RXCSUM) {
if (likely(BNX2X_RX_CSUM_OK(cqe)))
skb->ip_summed = CHECKSUM_UNNECESSARY;
else
@ -2443,11 +2443,21 @@ int __devinit bnx2x_alloc_mem_bp(struct bnx2x *bp)
}
static int bnx2x_reload_if_running(struct net_device *dev)
{
struct bnx2x *bp = netdev_priv(dev);
if (unlikely(!netif_running(dev)))
return 0;
bnx2x_nic_unload(bp, UNLOAD_NORMAL);
return bnx2x_nic_load(bp, LOAD_NORMAL);
}
/* called with rtnl_lock */
int bnx2x_change_mtu(struct net_device *dev, int new_mtu)
{
struct bnx2x *bp = netdev_priv(dev);
int rc = 0;
if (bp->recovery_state != BNX2X_RECOVERY_DONE) {
printk(KERN_ERR "Handling parity error recovery. Try again later\n");
@ -2464,12 +2474,39 @@ int bnx2x_change_mtu(struct net_device *dev, int new_mtu)
*/
dev->mtu = new_mtu;
if (netif_running(dev)) {
bnx2x_nic_unload(bp, UNLOAD_NORMAL);
rc = bnx2x_nic_load(bp, LOAD_NORMAL);
return bnx2x_reload_if_running(dev);
}
u32 bnx2x_fix_features(struct net_device *dev, u32 features)
{
struct bnx2x *bp = netdev_priv(dev);
/* TPA requires Rx CSUM offloading */
if (!(features & NETIF_F_RXCSUM) || bp->disable_tpa)
features &= ~NETIF_F_LRO;
return features;
}
int bnx2x_set_features(struct net_device *dev, u32 features)
{
struct bnx2x *bp = netdev_priv(dev);
u32 flags = bp->flags;
if (features & NETIF_F_LRO)
flags |= TPA_ENABLE_FLAG;
else
flags &= ~TPA_ENABLE_FLAG;
if (flags ^ bp->flags) {
bp->flags = flags;
if (bp->recovery_state == BNX2X_RECOVERY_DONE)
return bnx2x_reload_if_running(dev);
/* else: bnx2x_nic_load() will be called at end of recovery */
}
return rc;
return 0;
}
void bnx2x_tx_timeout(struct net_device *dev)

3
drivers/net/bnx2x/bnx2x_cmn.h
View File

@ -431,6 +431,9 @@ void bnx2x_free_mem_bp(struct bnx2x *bp);
*/
int bnx2x_change_mtu(struct net_device *dev, int new_mtu);
u32 bnx2x_fix_features(struct net_device *dev, u32 features);
int bnx2x_set_features(struct net_device *dev, u32 features);
/**
* tx timeout netdev callback
*

95
drivers/net/bnx2x/bnx2x_ethtool.c
View File

@ -1299,91 +1299,6 @@ static int bnx2x_set_pauseparam(struct net_device *dev,
return 0;
}
static int bnx2x_set_flags(struct net_device *dev, u32 data)
{
struct bnx2x *bp = netdev_priv(dev);
int changed = 0;
int rc = 0;
if (bp->recovery_state != BNX2X_RECOVERY_DONE) {
printk(KERN_ERR "Handling parity error recovery. Try again later\n");
return -EAGAIN;
}
if (!(data & ETH_FLAG_RXVLAN))
return -EINVAL;
if ((data & ETH_FLAG_LRO) && bp->rx_csum && bp->disable_tpa)
return -EINVAL;
rc = ethtool_op_set_flags(dev, data, ETH_FLAG_LRO | ETH_FLAG_RXVLAN |
ETH_FLAG_TXVLAN | ETH_FLAG_RXHASH);
if (rc)
return rc;
/* TPA requires Rx CSUM offloading */
if ((data & ETH_FLAG_LRO) && bp->rx_csum) {
if (!(bp->flags & TPA_ENABLE_FLAG)) {
bp->flags |= TPA_ENABLE_FLAG;
changed = 1;
}
} else if (bp->flags & TPA_ENABLE_FLAG) {
dev->features &= ~NETIF_F_LRO;
bp->flags &= ~TPA_ENABLE_FLAG;
changed = 1;
}
if (changed && netif_running(dev)) {
bnx2x_nic_unload(bp, UNLOAD_NORMAL);
rc = bnx2x_nic_load(bp, LOAD_NORMAL);
}
return rc;
}
static u32 bnx2x_get_rx_csum(struct net_device *dev)
{
struct bnx2x *bp = netdev_priv(dev);
return bp->rx_csum;
}
static int bnx2x_set_rx_csum(struct net_device *dev, u32 data)
{
struct bnx2x *bp = netdev_priv(dev);
int rc = 0;
if (bp->recovery_state != BNX2X_RECOVERY_DONE) {
printk(KERN_ERR "Handling parity error recovery. Try again later\n");
return -EAGAIN;
}
bp->rx_csum = data;
/* Disable TPA, when Rx CSUM is disabled. Otherwise all
TPA'ed packets will be discarded due to wrong TCP CSUM */
if (!data) {
u32 flags = ethtool_op_get_flags(dev);
rc = bnx2x_set_flags(dev, (flags & ~ETH_FLAG_LRO));
}
return rc;
}
static int bnx2x_set_tso(struct net_device *dev, u32 data)
{
if (data) {
dev->features |= (NETIF_F_TSO | NETIF_F_TSO_ECN);
dev->features |= NETIF_F_TSO6;
} else {
dev->features &= ~(NETIF_F_TSO | NETIF_F_TSO_ECN);
dev->features &= ~NETIF_F_TSO6;
}
return 0;
}
static const struct {
char string[ETH_GSTRING_LEN];
} bnx2x_tests_str_arr[BNX2X_NUM_TESTS] = {
@ -2207,16 +2122,6 @@ static const struct ethtool_ops bnx2x_ethtool_ops = {
.set_ringparam = bnx2x_set_ringparam,
.get_pauseparam = bnx2x_get_pauseparam,
.set_pauseparam = bnx2x_set_pauseparam,
.get_rx_csum = bnx2x_get_rx_csum,
.set_rx_csum = bnx2x_set_rx_csum,
.get_tx_csum = ethtool_op_get_tx_csum,
.set_tx_csum = ethtool_op_set_tx_hw_csum,
.set_flags = bnx2x_set_flags,
.get_flags = ethtool_op_get_flags,
.get_sg = ethtool_op_get_sg,
.set_sg = ethtool_op_set_sg,
.get_tso = ethtool_op_get_tso,
.set_tso = bnx2x_set_tso,
.self_test = bnx2x_self_test,
.get_sset_count = bnx2x_get_sset_count,
.get_strings = bnx2x_get_strings,

27
drivers/net/bnx2x/bnx2x_main.c
View File

@ -8904,8 +8904,6 @@ static int __devinit bnx2x_init_bp(struct bnx2x *bp)
bp->multi_mode = multi_mode;
bp->int_mode = int_mode;
bp->dev->features |= NETIF_F_GRO;
/* Set TPA flags */
if (disable_tpa) {
bp->flags &= ~TPA_ENABLE_FLAG;
@ -8925,8 +8923,6 @@ static int __devinit bnx2x_init_bp(struct bnx2x *bp)
bp->tx_ring_size = MAX_TX_AVAIL;
bp->rx_csum = 1;
/* make sure that the numbers are in the right granularity */
bp->tx_ticks = (50 / BNX2X_BTR) * BNX2X_BTR;
bp->rx_ticks = (25 / BNX2X_BTR) * BNX2X_BTR;
@ -9304,6 +9300,8 @@ static const struct net_device_ops bnx2x_netdev_ops = {
.ndo_validate_addr = eth_validate_addr,
.ndo_do_ioctl = bnx2x_ioctl,
.ndo_change_mtu = bnx2x_change_mtu,
.ndo_fix_features = bnx2x_fix_features,
.ndo_set_features = bnx2x_set_features,
.ndo_tx_timeout = bnx2x_tx_timeout,
#ifdef CONFIG_NET_POLL_CONTROLLER
.ndo_poll_controller = poll_bnx2x,
@ -9430,20 +9428,17 @@ static int __devinit bnx2x_init_dev(struct pci_dev *pdev,
dev->netdev_ops = &bnx2x_netdev_ops;
bnx2x_set_ethtool_ops(dev);
dev->features |= NETIF_F_SG;
dev->features |= NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM;
dev->hw_features = NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM |
NETIF_F_TSO | NETIF_F_TSO_ECN | NETIF_F_TSO6 |
NETIF_F_RXCSUM | NETIF_F_LRO | NETIF_F_HW_VLAN_TX;
dev->vlan_features = NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM |
NETIF_F_TSO | NETIF_F_TSO_ECN | NETIF_F_TSO6 | NETIF_F_HIGHDMA;
dev->features |= dev->hw_features | NETIF_F_HW_VLAN_RX;
if (bp->flags & USING_DAC_FLAG)
dev->features |= NETIF_F_HIGHDMA;
dev->features |= (NETIF_F_TSO | NETIF_F_TSO_ECN);
dev->features |= NETIF_F_TSO6;
dev->features |= (NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX);
dev->vlan_features |= NETIF_F_SG;
dev->vlan_features |= NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM;
if (bp->flags & USING_DAC_FLAG)
dev->vlan_features |= NETIF_F_HIGHDMA;
dev->vlan_features |= (NETIF_F_TSO | NETIF_F_TSO_ECN);
dev->vlan_features |= NETIF_F_TSO6;
#ifdef BCM_DCBNL
dev->dcbnl_ops = &bnx2x_dcbnl_ops;