diff options
| author | Malli Chilakala <mallikarjuna.chilakala@intel.com> | 2005-06-18 02:40:19 +0200 |
|---|---|---|
| committer | Jeff Garzik <jgarzik@pobox.com> | 2005-06-27 06:34:24 +0200 |
| commit | 97876fc66fc2405f1a2ec09eb6a0206e5168d2d9 (patch) | |
| tree | 1bc708650061fb5a3df2234b81c1b9cf9b39b355 /drivers/net/e1000 | |
| parent | [PATCH] e100: NAPI performance enhancements (diff) | |
| download | linux-97876fc66fc2405f1a2ec09eb6a0206e5168d2d9.tar.xz linux-97876fc66fc2405f1a2ec09eb6a0206e5168d2d9.zip | |
[PATCH] e1000: Synchronize phy access between stats update and MII_IOCTL
Synchronize phy access between stats update and MII_IOCTL
Signed-off-by: Mallikarjuna R Chilakala <mallikarjuna.chilakala@intel.com>
Signed-off-by: Ganesh Venkatesan <ganesh.venkatesan@intel.com>
Signed-off-by: John Ronciak <john.ronciak@intel.com>
Diffstat (limited to 'drivers/net/e1000')
| -rw-r--r-- | drivers/net/e1000/e1000_main.c | 36 |
1 files changed, 26 insertions, 10 deletions
diff --git a/drivers/net/e1000/e1000_main.c b/drivers/net/e1000/e1000_main.c index 137226d98d47..d21e29d09ddc 100644 --- a/drivers/net/e1000/e1000_main.c +++ b/drivers/net/e1000/e1000_main.c @@ -3376,6 +3376,7 @@ e1000_mii_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd) int retval; uint16_t mii_reg; uint16_t spddplx; + unsigned long flags; if(adapter->hw.media_type != e1000_media_type_copper) return -EOPNOTSUPP; @@ -3385,22 +3386,29 @@ e1000_mii_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd) data->phy_id = adapter->hw.phy_addr; break; case SIOCGMIIREG: - if (!capable(CAP_NET_ADMIN)) + if(!capable(CAP_NET_ADMIN)) return -EPERM; - if (e1000_read_phy_reg(&adapter->hw, data->reg_num & 0x1F, - &data->val_out)) + spin_lock_irqsave(&adapter->stats_lock, flags); + if(e1000_read_phy_reg(&adapter->hw, data->reg_num & 0x1F, + &data->val_out)) { + spin_unlock_irqrestore(&adapter->stats_lock, flags); return -EIO; + } + spin_unlock_irqrestore(&adapter->stats_lock, flags); break; case SIOCSMIIREG: - if (!capable(CAP_NET_ADMIN)) + if(!capable(CAP_NET_ADMIN)) return -EPERM; - if (data->reg_num & ~(0x1F)) + if(data->reg_num & ~(0x1F)) return -EFAULT; mii_reg = data->val_in; - if (e1000_write_phy_reg(&adapter->hw, data->reg_num, - mii_reg)) + spin_lock_irqsave(&adapter->stats_lock, flags); + if(e1000_write_phy_reg(&adapter->hw, data->reg_num, + mii_reg)) { + spin_unlock_irqrestore(&adapter->stats_lock, flags); return -EIO; - if (adapter->hw.phy_type == e1000_phy_m88) { + } + if(adapter->hw.phy_type == e1000_phy_m88) { switch (data->reg_num) { case PHY_CTRL: if(mii_reg & MII_CR_POWER_DOWN) @@ -3420,8 +3428,12 @@ e1000_mii_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd) HALF_DUPLEX; retval = e1000_set_spd_dplx(adapter, spddplx); - if(retval) + if(retval) { + spin_unlock_irqrestore( + &adapter->stats_lock, + flags); return retval; + } } if(netif_running(adapter->netdev)) { e1000_down(adapter); @@ -3431,8 +3443,11 @@ e1000_mii_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd) break; case M88E1000_PHY_SPEC_CTRL: case M88E1000_EXT_PHY_SPEC_CTRL: - if (e1000_phy_reset(&adapter->hw)) + if(e1000_phy_reset(&adapter->hw)) { + spin_unlock_irqrestore( + &adapter->stats_lock, flags); return -EIO; + } break; } } else { @@ -3448,6 +3463,7 @@ e1000_mii_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd) break; } } + spin_unlock_irqrestore(&adapter->stats_lock, flags); break; default: return -EOPNOTSUPP; |