summaryrefslogtreecommitdiff
path: root/drivers/net
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/net')
-rw-r--r--drivers/net/bonding/bond_main.c96
-rw-r--r--drivers/net/bonding/bonding.h13
-rw-r--r--drivers/net/ethernet/8390/apne.c1
-rw-r--r--drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c78
-rw-r--r--drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c4
-rw-r--r--drivers/net/ethernet/intel/i40e/i40e_main.c3
-rw-r--r--drivers/net/ethernet/marvell/sky2.c4
-rw-r--r--drivers/net/ethernet/qlogic/qlcnic/qlcnic_io.c19
-rw-r--r--drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c9
-rw-r--r--drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov_common.c11
-rw-r--r--drivers/net/ethernet/stmicro/stmmac/stmmac_main.c6
-rw-r--r--drivers/net/hyperv/hyperv_net.h2
-rw-r--r--drivers/net/hyperv/netvsc.c7
-rw-r--r--drivers/net/tun.c27
-rw-r--r--drivers/net/xen-netfront.c88
15 files changed, 190 insertions, 178 deletions
diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index a7db819bca92..4c08018d7333 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -2346,7 +2346,7 @@ static void bond_loadbalance_arp_mon(struct work_struct *work)
arp_work.work);
struct slave *slave, *oldcurrent;
struct list_head *iter;
- int do_failover = 0;
+ int do_failover = 0, slave_state_changed = 0;
if (!bond_has_slaves(bond))
goto re_arm;
@@ -2370,7 +2370,7 @@ static void bond_loadbalance_arp_mon(struct work_struct *work)
bond_time_in_interval(bond, slave->dev->last_rx, 1)) {
slave->link = BOND_LINK_UP;
- bond_set_active_slave(slave);
+ slave_state_changed = 1;
/* primary_slave has no meaning in round-robin
* mode. the window of a slave being up and
@@ -2399,7 +2399,7 @@ static void bond_loadbalance_arp_mon(struct work_struct *work)
!bond_time_in_interval(bond, slave->dev->last_rx, 2)) {
slave->link = BOND_LINK_DOWN;
- bond_set_backup_slave(slave);
+ slave_state_changed = 1;
if (slave->link_failure_count < UINT_MAX)
slave->link_failure_count++;
@@ -2426,19 +2426,24 @@ static void bond_loadbalance_arp_mon(struct work_struct *work)
rcu_read_unlock();
- if (do_failover) {
- /* the bond_select_active_slave must hold RTNL
- * and curr_slave_lock for write.
- */
+ if (do_failover || slave_state_changed) {
if (!rtnl_trylock())
goto re_arm;
- block_netpoll_tx();
- write_lock_bh(&bond->curr_slave_lock);
- bond_select_active_slave(bond);
+ if (slave_state_changed) {
+ bond_slave_state_change(bond);
+ } else if (do_failover) {
+ /* the bond_select_active_slave must hold RTNL
+ * and curr_slave_lock for write.
+ */
+ block_netpoll_tx();
+ write_lock_bh(&bond->curr_slave_lock);
- write_unlock_bh(&bond->curr_slave_lock);
- unblock_netpoll_tx();
+ bond_select_active_slave(bond);
+
+ write_unlock_bh(&bond->curr_slave_lock);
+ unblock_netpoll_tx();
+ }
rtnl_unlock();
}
@@ -2599,45 +2604,51 @@ do_failover:
/*
* Send ARP probes for active-backup mode ARP monitor.
- *
- * Called with rcu_read_lock hold.
*/
-static void bond_ab_arp_probe(struct bonding *bond)
+static bool bond_ab_arp_probe(struct bonding *bond)
{
struct slave *slave, *before = NULL, *new_slave = NULL,
- *curr_arp_slave = rcu_dereference(bond->current_arp_slave);
+ *curr_arp_slave, *curr_active_slave;
struct list_head *iter;
bool found = false;
- read_lock(&bond->curr_slave_lock);
+ rcu_read_lock();
+ curr_arp_slave = rcu_dereference(bond->current_arp_slave);
+ curr_active_slave = rcu_dereference(bond->curr_active_slave);
- if (curr_arp_slave && bond->curr_active_slave)
+ if (curr_arp_slave && curr_active_slave)
pr_info("PROBE: c_arp %s && cas %s BAD\n",
curr_arp_slave->dev->name,
- bond->curr_active_slave->dev->name);
+ curr_active_slave->dev->name);
- if (bond->curr_active_slave) {
- bond_arp_send_all(bond, bond->curr_active_slave);
- read_unlock(&bond->curr_slave_lock);
- return;
+ if (curr_active_slave) {
+ bond_arp_send_all(bond, curr_active_slave);
+ rcu_read_unlock();
+ return true;
}
-
- read_unlock(&bond->curr_slave_lock);
+ rcu_read_unlock();
/* if we don't have a curr_active_slave, search for the next available
* backup slave from the current_arp_slave and make it the candidate
* for becoming the curr_active_slave
*/
+ if (!rtnl_trylock())
+ return false;
+ /* curr_arp_slave might have gone away */
+ curr_arp_slave = ACCESS_ONCE(bond->current_arp_slave);
+
if (!curr_arp_slave) {
- curr_arp_slave = bond_first_slave_rcu(bond);
- if (!curr_arp_slave)
- return;
+ curr_arp_slave = bond_first_slave(bond);
+ if (!curr_arp_slave) {
+ rtnl_unlock();
+ return true;
+ }
}
bond_set_slave_inactive_flags(curr_arp_slave);
- bond_for_each_slave_rcu(bond, slave, iter) {
+ bond_for_each_slave(bond, slave, iter) {
if (!found && !before && IS_UP(slave->dev))
before = slave;
@@ -2667,21 +2678,26 @@ static void bond_ab_arp_probe(struct bonding *bond)
if (!new_slave && before)
new_slave = before;
- if (!new_slave)
- return;
+ if (!new_slave) {
+ rtnl_unlock();
+ return true;
+ }
new_slave->link = BOND_LINK_BACK;
bond_set_slave_active_flags(new_slave);
bond_arp_send_all(bond, new_slave);
new_slave->jiffies = jiffies;
rcu_assign_pointer(bond->current_arp_slave, new_slave);
+ rtnl_unlock();
+
+ return true;
}
static void bond_activebackup_arp_mon(struct work_struct *work)
{
struct bonding *bond = container_of(work, struct bonding,
arp_work.work);
- bool should_notify_peers = false;
+ bool should_notify_peers = false, should_commit = false;
int delta_in_ticks;
delta_in_ticks = msecs_to_jiffies(bond->params.arp_interval);
@@ -2690,12 +2706,11 @@ static void bond_activebackup_arp_mon(struct work_struct *work)
goto re_arm;
rcu_read_lock();
-
should_notify_peers = bond_should_notify_peers(bond);
+ should_commit = bond_ab_arp_inspect(bond);
+ rcu_read_unlock();
- if (bond_ab_arp_inspect(bond)) {
- rcu_read_unlock();
-
+ if (should_commit) {
/* Race avoidance with bond_close flush of workqueue */
if (!rtnl_trylock()) {
delta_in_ticks = 1;
@@ -2704,13 +2719,14 @@ static void bond_activebackup_arp_mon(struct work_struct *work)
}
bond_ab_arp_commit(bond);
-
rtnl_unlock();
- rcu_read_lock();
}
- bond_ab_arp_probe(bond);
- rcu_read_unlock();
+ if (!bond_ab_arp_probe(bond)) {
+ /* rtnl locking failed, re-arm */
+ delta_in_ticks = 1;
+ should_notify_peers = false;
+ }
re_arm:
if (bond->params.arp_interval)
diff --git a/drivers/net/bonding/bonding.h b/drivers/net/bonding/bonding.h
index 1a9062f4e0d6..86ccfb9f71cc 100644
--- a/drivers/net/bonding/bonding.h
+++ b/drivers/net/bonding/bonding.h
@@ -303,6 +303,19 @@ static inline void bond_set_backup_slave(struct slave *slave)
}
}
+static inline void bond_slave_state_change(struct bonding *bond)
+{
+ struct list_head *iter;
+ struct slave *tmp;
+
+ bond_for_each_slave(bond, tmp, iter) {
+ if (tmp->link == BOND_LINK_UP)
+ bond_set_active_slave(tmp);
+ else if (tmp->link == BOND_LINK_DOWN)
+ bond_set_backup_slave(tmp);
+ }
+}
+
static inline int bond_slave_state(struct slave *slave)
{
return slave->backup;
diff --git a/drivers/net/ethernet/8390/apne.c b/drivers/net/ethernet/8390/apne.c
index 811fa5d5c697..30104b60da85 100644
--- a/drivers/net/ethernet/8390/apne.c
+++ b/drivers/net/ethernet/8390/apne.c
@@ -212,7 +212,6 @@ static int __init apne_probe1(struct net_device *dev, int ioaddr)
int neX000, ctron;
#endif
static unsigned version_printed;
- struct ei_device *ei_local = netdev_priv(dev);
if ((apne_msg_enable & NETIF_MSG_DRV) && (version_printed++ == 0))
netdev_info(dev, version);
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c
index 92a467ff4104..38fc794c1655 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c
@@ -358,49 +358,47 @@ static int bnx2x_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
cfg_idx = bnx2x_get_link_cfg_idx(bp);
old_multi_phy_config = bp->link_params.multi_phy_config;
- switch (cmd->port) {
- case PORT_TP:
- if (bp->port.supported[cfg_idx] & SUPPORTED_TP)
- break; /* no port change */
-
- if (!(bp->port.supported[0] & SUPPORTED_TP ||
- bp->port.supported[1] & SUPPORTED_TP)) {
- DP(BNX2X_MSG_ETHTOOL, "Unsupported port type\n");
- return -EINVAL;
- }
- bp->link_params.multi_phy_config &=
- ~PORT_HW_CFG_PHY_SELECTION_MASK;
- if (bp->link_params.multi_phy_config &
- PORT_HW_CFG_PHY_SWAPPED_ENABLED)
- bp->link_params.multi_phy_config |=
- PORT_HW_CFG_PHY_SELECTION_SECOND_PHY;
- else
- bp->link_params.multi_phy_config |=
- PORT_HW_CFG_PHY_SELECTION_FIRST_PHY;
- break;
- case PORT_FIBRE:
- case PORT_DA:
- if (bp->port.supported[cfg_idx] & SUPPORTED_FIBRE)
- break; /* no port change */
-
- if (!(bp->port.supported[0] & SUPPORTED_FIBRE ||
- bp->port.supported[1] & SUPPORTED_FIBRE)) {
+ if (cmd->port != bnx2x_get_port_type(bp)) {
+ switch (cmd->port) {
+ case PORT_TP:
+ if (!(bp->port.supported[0] & SUPPORTED_TP ||
+ bp->port.supported[1] & SUPPORTED_TP)) {
+ DP(BNX2X_MSG_ETHTOOL,
+ "Unsupported port type\n");
+ return -EINVAL;
+ }
+ bp->link_params.multi_phy_config &=
+ ~PORT_HW_CFG_PHY_SELECTION_MASK;
+ if (bp->link_params.multi_phy_config &
+ PORT_HW_CFG_PHY_SWAPPED_ENABLED)
+ bp->link_params.multi_phy_config |=
+ PORT_HW_CFG_PHY_SELECTION_SECOND_PHY;
+ else
+ bp->link_params.multi_phy_config |=
+ PORT_HW_CFG_PHY_SELECTION_FIRST_PHY;
+ break;
+ case PORT_FIBRE:
+ case PORT_DA:
+ if (!(bp->port.supported[0] & SUPPORTED_FIBRE ||
+ bp->port.supported[1] & SUPPORTED_FIBRE)) {
+ DP(BNX2X_MSG_ETHTOOL,
+ "Unsupported port type\n");
+ return -EINVAL;
+ }
+ bp->link_params.multi_phy_config &=
+ ~PORT_HW_CFG_PHY_SELECTION_MASK;
+ if (bp->link_params.multi_phy_config &
+ PORT_HW_CFG_PHY_SWAPPED_ENABLED)
+ bp->link_params.multi_phy_config |=
+ PORT_HW_CFG_PHY_SELECTION_FIRST_PHY;
+ else
+ bp->link_params.multi_phy_config |=
+ PORT_HW_CFG_PHY_SELECTION_SECOND_PHY;
+ break;
+ default:
DP(BNX2X_MSG_ETHTOOL, "Unsupported port type\n");
return -EINVAL;
}
- bp->link_params.multi_phy_config &=
- ~PORT_HW_CFG_PHY_SELECTION_MASK;
- if (bp->link_params.multi_phy_config &
- PORT_HW_CFG_PHY_SWAPPED_ENABLED)
- bp->link_params.multi_phy_config |=
- PORT_HW_CFG_PHY_SELECTION_FIRST_PHY;
- else
- bp->link_params.multi_phy_config |=
- PORT_HW_CFG_PHY_SELECTION_SECOND_PHY;
- break;
- default:
- DP(BNX2X_MSG_ETHTOOL, "Unsupported port type\n");
- return -EINVAL;
}
/* Save new config in case command complete successfully */
new_multi_phy_config = bp->link_params.multi_phy_config;
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
index e118a3ec62bc..c9c445e7b4a5 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
@@ -13102,9 +13102,9 @@ static void __bnx2x_remove(struct pci_dev *pdev,
if (atomic_read(&pdev->enable_cnt) == 1)
pci_release_regions(pdev);
- }
- pci_disable_device(pdev);
+ pci_disable_device(pdev);
+ }
}
static void bnx2x_remove_one(struct pci_dev *pdev)
diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c
index a4b940862b83..b901371ca361 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -4440,9 +4440,10 @@ bool i40e_dcb_need_reconfig(struct i40e_pf *pf,
/* Check if APP Table has changed */
if (memcmp(&new_cfg->app,
&old_cfg->app,
- sizeof(new_cfg->app)))
+ sizeof(new_cfg->app))) {
need_reconfig = true;
dev_info(&pf->pdev->dev, "APP Table change detected.\n");
+ }
return need_reconfig;
}
diff --git a/drivers/net/ethernet/marvell/sky2.c b/drivers/net/ethernet/marvell/sky2.c
index 6509935d145e..55a37ae11440 100644
--- a/drivers/net/ethernet/marvell/sky2.c
+++ b/drivers/net/ethernet/marvell/sky2.c
@@ -5020,6 +5020,8 @@ static int sky2_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
}
}
+ netif_napi_add(dev, &hw->napi, sky2_poll, NAPI_WEIGHT);
+
err = register_netdev(dev);
if (err) {
dev_err(&pdev->dev, "cannot register net device\n");
@@ -5028,8 +5030,6 @@ static int sky2_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
netif_carrier_off(dev);
- netif_napi_add(dev, &hw->napi, sky2_poll, NAPI_WEIGHT);
-
sky2_show_addr(dev);
if (hw->ports > 1) {
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_io.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_io.c
index 30874cda8476..54ebf300332a 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_io.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_io.c
@@ -683,12 +683,17 @@ void qlcnic_advert_link_change(struct qlcnic_adapter *adapter, int linkup)
adapter->ahw->linkup = 0;
netif_carrier_off(netdev);
} else if (!adapter->ahw->linkup && linkup) {
- /* Do not advertise Link up if the port is in loopback mode */
- if (qlcnic_83xx_check(adapter) && adapter->ahw->lb_mode)
+ adapter->ahw->linkup = 1;
+
+ /* Do not advertise Link up to the stack if device
+ * is in loopback mode
+ */
+ if (qlcnic_83xx_check(adapter) && adapter->ahw->lb_mode) {
+ netdev_info(netdev, "NIC Link is up for loopback test\n");
return;
+ }
netdev_info(netdev, "NIC Link is up\n");
- adapter->ahw->linkup = 1;
netif_carrier_on(netdev);
}
}
@@ -1150,13 +1155,13 @@ qlcnic_process_lro(struct qlcnic_adapter *adapter,
u16 lro_length, length, data_offset, t_vid, vid = 0xffff;
u32 seq_number;
- if (unlikely(ring > adapter->max_rds_rings))
+ if (unlikely(ring >= adapter->max_rds_rings))
return NULL;
rds_ring = &recv_ctx->rds_rings[ring];
index = qlcnic_get_lro_sts_refhandle(sts_data0);
- if (unlikely(index > rds_ring->num_desc))
+ if (unlikely(index >= rds_ring->num_desc))
return NULL;
buffer = &rds_ring->rx_buf_arr[index];
@@ -1662,13 +1667,13 @@ qlcnic_83xx_process_lro(struct qlcnic_adapter *adapter,
u16 vid = 0xffff;
int err;
- if (unlikely(ring > adapter->max_rds_rings))
+ if (unlikely(ring >= adapter->max_rds_rings))
return NULL;
rds_ring = &recv_ctx->rds_rings[ring];
index = qlcnic_83xx_hndl(sts_data[0]);
- if (unlikely(index > rds_ring->num_desc))
+ if (unlikely(index >= rds_ring->num_desc))
return NULL;
buffer = &rds_ring->rx_buf_arr[index];
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
index 1f79d47c45fa..ba78c7481fa3 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
@@ -1837,6 +1837,7 @@ int __qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
qlcnic_linkevent_request(adapter, 1);
adapter->ahw->reset_context = 0;
+ netif_tx_start_all_queues(netdev);
return 0;
}
@@ -2704,14 +2705,8 @@ static int qlcnic_open(struct net_device *netdev)
err = __qlcnic_up(adapter, netdev);
if (err)
- goto err_out;
-
- netif_tx_start_all_queues(netdev);
-
- return 0;
+ qlcnic_detach(adapter);
-err_out:
- qlcnic_detach(adapter);
return err;
}
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov_common.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov_common.c
index 17a1ca2050f4..0638c1810d54 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov_common.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov_common.c
@@ -448,8 +448,7 @@ static int qlcnic_sriov_set_guest_vlan_mode(struct qlcnic_adapter *adapter,
return 0;
}
-static int qlcnic_sriov_get_vf_acl(struct qlcnic_adapter *adapter,
- struct qlcnic_info *info)
+static int qlcnic_sriov_get_vf_acl(struct qlcnic_adapter *adapter)
{
struct qlcnic_sriov *sriov = adapter->ahw->sriov;
struct qlcnic_cmd_args cmd;
@@ -495,10 +494,6 @@ static int qlcnic_sriov_vf_init_driver(struct qlcnic_adapter *adapter)
if (err)
return -EIO;
- err = qlcnic_sriov_get_vf_acl(adapter, &nic_info);
- if (err)
- return err;
-
if (qlcnic_83xx_get_port_info(adapter))
return -EIO;
@@ -555,6 +550,10 @@ static int qlcnic_sriov_setup_vf(struct qlcnic_adapter *adapter,
if (err)
goto err_out_send_channel_term;
+ err = qlcnic_sriov_get_vf_acl(adapter);
+ if (err)
+ goto err_out_send_channel_term;
+
err = qlcnic_setup_netdev(adapter, adapter->netdev, pci_using_dac);
if (err)
goto err_out_send_channel_term;
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
index d93aa87408c2..a2e7d2c96e36 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
@@ -1524,9 +1524,9 @@ static void stmmac_check_ether_addr(struct stmmac_priv *priv)
priv->dev->dev_addr, 0);
if (!is_valid_ether_addr(priv->dev->dev_addr))
eth_hw_addr_random(priv->dev);
+ pr_info("%s: device MAC address %pM\n", priv->dev->name,
+ priv->dev->dev_addr);
}
- pr_warn("%s: device MAC address %pM\n", priv->dev->name,
- priv->dev->dev_addr);
}
/**
@@ -1635,7 +1635,7 @@ static int stmmac_hw_setup(struct net_device *dev)
stmmac_mmc_setup(priv);
ret = stmmac_init_ptp(priv);
- if (ret)
+ if (ret && ret != -EOPNOTSUPP)
pr_warn("%s: failed PTP initialisation\n", __func__);
#ifdef CONFIG_STMMAC_DEBUG_FS
diff --git a/drivers/net/hyperv/hyperv_net.h b/drivers/net/hyperv/hyperv_net.h
index a26eecb1212c..7b594ce3f21d 100644
--- a/drivers/net/hyperv/hyperv_net.h
+++ b/drivers/net/hyperv/hyperv_net.h
@@ -462,7 +462,7 @@ struct nvsp_message {
#define NETVSC_MTU 65536
-#define NETVSC_RECEIVE_BUFFER_SIZE (1024*1024*2) /* 2MB */
+#define NETVSC_RECEIVE_BUFFER_SIZE (1024*1024*16) /* 16MB */
#define NETVSC_RECEIVE_BUFFER_ID 0xcafe
diff --git a/drivers/net/hyperv/netvsc.c b/drivers/net/hyperv/netvsc.c
index 93b485b96249..03a2c6e17158 100644
--- a/drivers/net/hyperv/netvsc.c
+++ b/drivers/net/hyperv/netvsc.c
@@ -136,8 +136,7 @@ static int netvsc_destroy_recv_buf(struct netvsc_device *net_device)
if (net_device->recv_buf) {
/* Free up the receive buffer */
- free_pages((unsigned long)net_device->recv_buf,
- get_order(net_device->recv_buf_size));
+ vfree(net_device->recv_buf);
net_device->recv_buf = NULL;
}
@@ -163,9 +162,7 @@ static int netvsc_init_recv_buf(struct hv_device *device)
return -ENODEV;
ndev = net_device->ndev;
- net_device->recv_buf =
- (void *)__get_free_pages(GFP_KERNEL|__GFP_ZERO,
- get_order(net_device->recv_buf_size));
+ net_device->recv_buf = vzalloc(net_device->recv_buf_size);
if (!net_device->recv_buf) {
netdev_err(ndev, "unable to allocate receive "
"buffer of size %d\n", net_device->recv_buf_size);
diff --git a/drivers/net/tun.c b/drivers/net/tun.c
index bcf01af4b879..44c4db8450f0 100644
--- a/drivers/net/tun.c
+++ b/drivers/net/tun.c
@@ -69,6 +69,7 @@
#include <net/netns/generic.h>
#include <net/rtnetlink.h>
#include <net/sock.h>
+#include <linux/seq_file.h>
#include <asm/uaccess.h>
@@ -2228,6 +2229,27 @@ static int tun_chr_close(struct inode *inode, struct file *file)
return 0;
}
+#ifdef CONFIG_PROC_FS
+static int tun_chr_show_fdinfo(struct seq_file *m, struct file *f)
+{
+ struct tun_struct *tun;
+ struct ifreq ifr;
+
+ memset(&ifr, 0, sizeof(ifr));
+
+ rtnl_lock();
+ tun = tun_get(f);
+ if (tun)
+ tun_get_iff(current->nsproxy->net_ns, tun, &ifr);
+ rtnl_unlock();
+
+ if (tun)
+ tun_put(tun);
+
+ return seq_printf(m, "iff:\t%s\n", ifr.ifr_name);
+}
+#endif
+
static const struct file_operations tun_fops = {
.owner = THIS_MODULE,
.llseek = no_llseek,
@@ -2242,7 +2264,10 @@ static const struct file_operations tun_fops = {
#endif
.open = tun_chr_open,
.release = tun_chr_close,
- .fasync = tun_chr_fasync
+ .fasync = tun_chr_fasync,
+#ifdef CONFIG_PROC_FS
+ .show_fdinfo = tun_chr_show_fdinfo,
+#endif
};
static struct miscdevice tun_miscdev = {
diff --git a/drivers/net/xen-netfront.c b/drivers/net/xen-netfront.c
index e955c5692986..ff04d4f95baa 100644
--- a/drivers/net/xen-netfront.c
+++ b/drivers/net/xen-netfront.c
@@ -117,6 +117,7 @@ struct netfront_info {
} tx_skbs[NET_TX_RING_SIZE];
grant_ref_t gref_tx_head;
grant_ref_t grant_tx_ref[NET_TX_RING_SIZE];
+ struct page *grant_tx_page[NET_TX_RING_SIZE];
unsigned tx_skb_freelist;
spinlock_t rx_lock ____cacheline_aligned_in_smp;
@@ -396,6 +397,7 @@ static void xennet_tx_buf_gc(struct net_device *dev)
gnttab_release_grant_reference(
&np->gref_tx_head, np->grant_tx_ref[id]);
np->grant_tx_ref[id] = GRANT_INVALID_REF;
+ np->grant_tx_page[id] = NULL;
add_id_to_freelist(&np->tx_skb_freelist, np->tx_skbs, id);
dev_kfree_skb_irq(skb);
}
@@ -452,6 +454,7 @@ static void xennet_make_frags(struct sk_buff *skb, struct net_device *dev,
gnttab_grant_foreign_access_ref(ref, np->xbdev->otherend_id,
mfn, GNTMAP_readonly);
+ np->grant_tx_page[id] = virt_to_page(data);
tx->gref = np->grant_tx_ref[id] = ref;
tx->offset = offset;
tx->size = len;
@@ -497,6 +500,7 @@ static void xennet_make_frags(struct sk_buff *skb, struct net_device *dev,
np->xbdev->otherend_id,
mfn, GNTMAP_readonly);
+ np->grant_tx_page[id] = page;
tx->gref = np->grant_tx_ref[id] = ref;
tx->offset = offset;
tx->size = bytes;
@@ -596,6 +600,7 @@ static int xennet_start_xmit(struct sk_buff *skb, struct net_device *dev)
mfn = virt_to_mfn(data);
gnttab_grant_foreign_access_ref(
ref, np->xbdev->otherend_id, mfn, GNTMAP_readonly);
+ np->grant_tx_page[id] = virt_to_page(data);
tx->gref = np->grant_tx_ref[id] = ref;
tx->offset = offset;
tx->size = len;
@@ -1085,10 +1090,11 @@ static void xennet_release_tx_bufs(struct netfront_info *np)
continue;
skb = np->tx_skbs[i].skb;
- gnttab_end_foreign_access_ref(np->grant_tx_ref[i],
- GNTMAP_readonly);
- gnttab_release_grant_reference(&np->gref_tx_head,
- np->grant_tx_ref[i]);
+ get_page(np->grant_tx_page[i]);
+ gnttab_end_foreign_access(np->grant_tx_ref[i],
+ GNTMAP_readonly,
+ (unsigned long)page_address(np->grant_tx_page[i]));
+ np->grant_tx_page[i] = NULL;
np->grant_tx_ref[i] = GRANT_INVALID_REF;
add_id_to_freelist(&np->tx_skb_freelist, np->tx_skbs, i);
dev_kfree_skb_irq(skb);
@@ -1097,78 +1103,35 @@ static void xennet_release_tx_bufs(struct netfront_info *np)
static void xennet_release_rx_bufs(struct netfront_info *np)
{
- struct mmu_update *mmu = np->rx_mmu;
- struct multicall_entry *mcl = np->rx_mcl;
- struct sk_buff_head free_list;
- struct sk_buff *skb;
- unsigned long mfn;
- int xfer = 0, noxfer = 0, unused = 0;
int id, ref;
- dev_warn(&np->netdev->dev, "%s: fix me for copying receiver.\n",
- __func__);
- return;
-
- skb_queue_head_init(&free_list);
-
spin_lock_bh(&np->rx_lock);
for (id = 0; id < NET_RX_RING_SIZE; id++) {
- ref = np->grant_rx_ref[id];
- if (ref == GRANT_INVALID_REF) {
- unused++;
- continue;
- }
+ struct sk_buff *skb;
+ struct page *page;
skb = np->rx_skbs[id];
- mfn = gnttab_end_foreign_transfer_ref(ref);
- gnttab_release_grant_reference(&np->gref_rx_head, ref);
- np->grant_rx_ref[id] = GRANT_INVALID_REF;
-
- if (0 == mfn) {
- skb_shinfo(skb)->nr_frags = 0;
- dev_kfree_skb(skb);
- noxfer++;
+ if (!skb)
continue;
- }
- if (!xen_feature(XENFEAT_auto_translated_physmap)) {
- /* Remap the page. */
- const struct page *page =
- skb_frag_page(&skb_shinfo(skb)->frags[0]);
- unsigned long pfn = page_to_pfn(page);
- void *vaddr = page_address(page);
+ ref = np->grant_rx_ref[id];
+ if (ref == GRANT_INVALID_REF)
+ continue;
- MULTI_update_va_mapping(mcl, (unsigned long)vaddr,
- mfn_pte(mfn, PAGE_KERNEL),
- 0);
- mcl++;
- mmu->ptr = ((u64)mfn << PAGE_SHIFT)
- | MMU_MACHPHYS_UPDATE;
- mmu->val = pfn;
- mmu++;
+ page = skb_frag_page(&skb_shinfo(skb)->frags[0]);
- set_phys_to_machine(pfn, mfn);
- }
- __skb_queue_tail(&free_list, skb);
- xfer++;
- }
-
- dev_info(&np->netdev->dev, "%s: %d xfer, %d noxfer, %d unused\n",
- __func__, xfer, noxfer, unused);
+ /* gnttab_end_foreign_access() needs a page ref until
+ * foreign access is ended (which may be deferred).
+ */
+ get_page(page);
+ gnttab_end_foreign_access(ref, 0,
+ (unsigned long)page_address(page));
+ np->grant_rx_ref[id] = GRANT_INVALID_REF;
- if (xfer) {
- if (!xen_feature(XENFEAT_auto_translated_physmap)) {
- /* Do all the remapping work and M2P updates. */
- MULTI_mmu_update(mcl, np->rx_mmu, mmu - np->rx_mmu,
- NULL, DOMID_SELF);
- mcl++;
- HYPERVISOR_multicall(np->rx_mcl, mcl - np->rx_mcl);
- }
+ kfree_skb(skb);
}
- __skb_queue_purge(&free_list);
-
spin_unlock_bh(&np->rx_lock);
}
@@ -1339,6 +1302,7 @@ static struct net_device *xennet_create_dev(struct xenbus_device *dev)
for (i = 0; i < NET_RX_RING_SIZE; i++) {
np->rx_skbs[i] = NULL;
np->grant_rx_ref[i] = GRANT_INVALID_REF;
+ np->grant_tx_page[i] = NULL;
}
/* A grant for every tx ring slot */
generated by cgit v1.2.3 (git 2.39.0) at 2024-12-11 14:18:18 +0300