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authorChien Tung <chien.tin.tung@intel.com>2010-03-09 21:50:40 +0000
committerRoland Dreier <rolandd@cisco.com>2010-04-21 15:46:40 -0700
commitce6e74f23d8018f50609f694b6177c139486ebe5 (patch)
tree5d7f07be071eae07a1c047f8f0ba322a44abd8db /drivers/infiniband/hw/nes
parent0eddb519b9127c73d53db4bf3ec1d45b13f844d1 (diff)
downloadblackbird-op-linux-ce6e74f23d8018f50609f694b6177c139486ebe5.tar.gz
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RDMA/nes: Make nesadapter->phy_lock usage consistent
nes_{read,write}_1G_phy_reg() are using phy_lock while nes_{read,write}_10G_phy_reg() leave that to the caller. Remove phy_lock from 1G routines and leave the locking to the caller. Add additional phy_lock calls around 1G read/write. Signed-off-by: Chien Tung <chien.tin.tung@intel.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
Diffstat (limited to 'drivers/infiniband/hw/nes')
-rw-r--r--drivers/infiniband/hw/nes/nes_hw.c8
-rw-r--r--drivers/infiniband/hw/nes/nes_nic.c16
-rw-r--r--drivers/infiniband/hw/nes/nes_utils.c10
3 files changed, 14 insertions, 20 deletions
diff --git a/drivers/infiniband/hw/nes/nes_hw.c b/drivers/infiniband/hw/nes/nes_hw.c
index c36a3f514929..8b67207c7076 100644
--- a/drivers/infiniband/hw/nes/nes_hw.c
+++ b/drivers/infiniband/hw/nes/nes_hw.c
@@ -2458,7 +2458,6 @@ static void nes_process_mac_intr(struct nes_device *nesdev, u32 mac_number)
return;
}
nesadapter->mac_sw_state[mac_number] = NES_MAC_SW_INTERRUPT;
- spin_unlock_irqrestore(&nesadapter->phy_lock, flags);
/* ack the MAC interrupt */
mac_status = nes_read_indexed(nesdev, NES_IDX_MAC_INT_STATUS + (mac_index * 0x200));
@@ -2469,11 +2468,9 @@ static void nes_process_mac_intr(struct nes_device *nesdev, u32 mac_number)
if (mac_status & (NES_MAC_INT_LINK_STAT_CHG | NES_MAC_INT_XGMII_EXT)) {
nesdev->link_status_interrupts++;
- if (0 == (++nesadapter->link_interrupt_count[mac_index] % ((u16)NES_MAX_LINK_INTERRUPTS))) {
- spin_lock_irqsave(&nesadapter->phy_lock, flags);
+ if (0 == (++nesadapter->link_interrupt_count[mac_index] % ((u16)NES_MAX_LINK_INTERRUPTS)))
nes_reset_link(nesdev, mac_index);
- spin_unlock_irqrestore(&nesadapter->phy_lock, flags);
- }
+
/* read the PHY interrupt status register */
if ((nesadapter->OneG_Mode) &&
(nesadapter->phy_type[mac_index] != NES_PHY_TYPE_PUMA_1G)) {
@@ -2587,6 +2584,7 @@ static void nes_process_mac_intr(struct nes_device *nesdev, u32 mac_number)
break;
}
}
+ spin_unlock_irqrestore(&nesadapter->phy_lock, flags);
if (phy_data & 0x0004) {
if (wide_ppm_offset &&
diff --git a/drivers/infiniband/hw/nes/nes_nic.c b/drivers/infiniband/hw/nes/nes_nic.c
index b7c813f4be43..9f4cadf9f851 100644
--- a/drivers/infiniband/hw/nes/nes_nic.c
+++ b/drivers/infiniband/hw/nes/nes_nic.c
@@ -1461,11 +1461,14 @@ static int nes_netdev_get_settings(struct net_device *netdev, struct ethtool_cmd
et_cmd->transceiver = XCVR_INTERNAL;
et_cmd->phy_address = mac_index;
} else {
+ unsigned long flags;
et_cmd->supported = SUPPORTED_1000baseT_Full
| SUPPORTED_Autoneg;
et_cmd->advertising = ADVERTISED_1000baseT_Full
| ADVERTISED_Autoneg;
+ spin_lock_irqsave(&nesadapter->phy_lock, flags);
nes_read_1G_phy_reg(nesdev, 0, phy_index, &phy_data);
+ spin_unlock_irqrestore(&nesadapter->phy_lock, flags);
if (phy_data & 0x1000)
et_cmd->autoneg = AUTONEG_ENABLE;
else
@@ -1503,12 +1506,15 @@ static int nes_netdev_set_settings(struct net_device *netdev, struct ethtool_cmd
struct nes_vnic *nesvnic = netdev_priv(netdev);
struct nes_device *nesdev = nesvnic->nesdev;
struct nes_adapter *nesadapter = nesdev->nesadapter;
- u16 phy_data;
if ((nesadapter->OneG_Mode) &&
(nesadapter->phy_type[nesdev->mac_index] != NES_PHY_TYPE_PUMA_1G)) {
- nes_read_1G_phy_reg(nesdev, 0, nesadapter->phy_index[nesdev->mac_index],
- &phy_data);
+ unsigned long flags;
+ u16 phy_data;
+ u8 phy_index = nesadapter->phy_index[nesdev->mac_index];
+
+ spin_lock_irqsave(&nesadapter->phy_lock, flags);
+ nes_read_1G_phy_reg(nesdev, 0, phy_index, &phy_data);
if (et_cmd->autoneg) {
/* Turn on Full duplex, Autoneg, and restart autonegotiation */
phy_data |= 0x1300;
@@ -1516,8 +1522,8 @@ static int nes_netdev_set_settings(struct net_device *netdev, struct ethtool_cmd
/* Turn off autoneg */
phy_data &= ~0x1000;
}
- nes_write_1G_phy_reg(nesdev, 0, nesadapter->phy_index[nesdev->mac_index],
- phy_data);
+ nes_write_1G_phy_reg(nesdev, 0, phy_index, phy_data);
+ spin_unlock_irqrestore(&nesadapter->phy_lock, flags);
}
return 0;
diff --git a/drivers/infiniband/hw/nes/nes_utils.c b/drivers/infiniband/hw/nes/nes_utils.c
index 186623d86959..a9f5dd272f1a 100644
--- a/drivers/infiniband/hw/nes/nes_utils.c
+++ b/drivers/infiniband/hw/nes/nes_utils.c
@@ -381,12 +381,8 @@ static u16 nes_read16_eeprom(void __iomem *addr, u16 offset)
*/
void nes_write_1G_phy_reg(struct nes_device *nesdev, u8 phy_reg, u8 phy_addr, u16 data)
{
- struct nes_adapter *nesadapter = nesdev->nesadapter;
u32 u32temp;
u32 counter;
- unsigned long flags;
-
- spin_lock_irqsave(&nesadapter->phy_lock, flags);
nes_write_indexed(nesdev, NES_IDX_MAC_MDIO_CONTROL,
0x50020000 | data | ((u32)phy_reg << 18) | ((u32)phy_addr << 23));
@@ -402,8 +398,6 @@ void nes_write_1G_phy_reg(struct nes_device *nesdev, u8 phy_reg, u8 phy_addr, u1
if (!(u32temp & 1))
nes_debug(NES_DBG_PHY, "Phy is not responding. interrupt status = 0x%X.\n",
u32temp);
-
- spin_unlock_irqrestore(&nesadapter->phy_lock, flags);
}
@@ -414,14 +408,11 @@ void nes_write_1G_phy_reg(struct nes_device *nesdev, u8 phy_reg, u8 phy_addr, u1
*/
void nes_read_1G_phy_reg(struct nes_device *nesdev, u8 phy_reg, u8 phy_addr, u16 *data)
{
- struct nes_adapter *nesadapter = nesdev->nesadapter;
u32 u32temp;
u32 counter;
- unsigned long flags;
/* nes_debug(NES_DBG_PHY, "phy addr = %d, mac_index = %d\n",
phy_addr, nesdev->mac_index); */
- spin_lock_irqsave(&nesadapter->phy_lock, flags);
nes_write_indexed(nesdev, NES_IDX_MAC_MDIO_CONTROL,
0x60020000 | ((u32)phy_reg << 18) | ((u32)phy_addr << 23));
@@ -441,7 +432,6 @@ void nes_read_1G_phy_reg(struct nes_device *nesdev, u8 phy_reg, u8 phy_addr, u16
} else {
*data = (u16)nes_read_indexed(nesdev, NES_IDX_MAC_MDIO_CONTROL);
}
- spin_unlock_irqrestore(&nesadapter->phy_lock, flags);
}
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