Skip to content

Commit

Permalink
ixgbe: Fix WoL functionality for 82599 KX4 devices
Browse files Browse the repository at this point in the history 
The current code writes the PME enabled bit in PCI config space which is
wrong.  This was needed for pre-release hardware, and was not removed from
the driver.  Also, we need to clear the WUS (wake up status) after we
resume.  Otherwise we can't wake for the same event again since it's still
asserted in the hardware.  Plus, the multicast lists were being written
improperly, causing multicast WoL to fail.

Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
  • Loading branch information
Waskiewicz Jr, Peter P authored and David S. Miller committed Apr 27, 2009
1 parent ae0e8e8 commit 495dce1
Show file tree
Hide file tree
Showing 2 changed files with 6 additions and 55 deletions.
51 changes: 2 additions & 49 deletions drivers/net/ixgbe/ixgbe_common.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -50,7 +50,6 @@ static u16 ixgbe_calc_eeprom_checksum(struct ixgbe_hw *hw);
static void ixgbe_enable_rar(struct ixgbe_hw *hw, u32 index);
static void ixgbe_disable_rar(struct ixgbe_hw *hw, u32 index);
static s32 ixgbe_mta_vector(struct ixgbe_hw *hw, u8 *mc_addr);
static void ixgbe_add_mc_addr(struct ixgbe_hw *hw, u8 *mc_addr);
static void ixgbe_add_uc_addr(struct ixgbe_hw *hw, u8 *addr, u32 vmdq);

/**
Expand Down Expand Up @@ -1377,8 +1376,7 @@ s32 ixgbe_update_uc_addr_list_generic(struct ixgbe_hw *hw, u8 *addr_list,
* Clear accounting of old secondary address list,
* don't count RAR[0]
*/
uc_addr_in_use = hw->addr_ctrl.rar_used_count -
hw->addr_ctrl.mc_addr_in_rar_count - 1;
uc_addr_in_use = hw->addr_ctrl.rar_used_count - 1;
hw->addr_ctrl.rar_used_count -= uc_addr_in_use;
hw->addr_ctrl.overflow_promisc = 0;

Expand Down Expand Up @@ -1492,40 +1490,6 @@ static void ixgbe_set_mta(struct ixgbe_hw *hw, u8 *mc_addr)
IXGBE_WRITE_REG(hw, IXGBE_MTA(vector_reg), mta_reg);
}

/**
* ixgbe_add_mc_addr - Adds a multicast address.
* @hw: pointer to hardware structure
* @mc_addr: new multicast address
*
* Adds it to unused receive address register or to the multicast table.
**/
static void ixgbe_add_mc_addr(struct ixgbe_hw *hw, u8 *mc_addr)
{
u32 rar_entries = hw->mac.num_rar_entries;
u32 rar;

hw_dbg(hw, " MC Addr =%.2X %.2X %.2X %.2X %.2X %.2X\n",
mc_addr[0], mc_addr[1], mc_addr[2],
mc_addr[3], mc_addr[4], mc_addr[5]);

/*
* Place this multicast address in the RAR if there is room,
* else put it in the MTA
*/
if (hw->addr_ctrl.rar_used_count < rar_entries) {
/* use RAR from the end up for multicast */
rar = rar_entries - hw->addr_ctrl.mc_addr_in_rar_count - 1;
hw->mac.ops.set_rar(hw, rar, mc_addr, 0, IXGBE_RAH_AV);
hw_dbg(hw, "Added a multicast address to RAR[%d]\n", rar);
hw->addr_ctrl.rar_used_count++;
hw->addr_ctrl.mc_addr_in_rar_count++;
} else {
ixgbe_set_mta(hw, mc_addr);
}

hw_dbg(hw, "ixgbe_add_mc_addr Complete\n");
}

/**
* ixgbe_update_mc_addr_list_generic - Updates MAC list of multicast addresses
* @hw: pointer to hardware structure
Expand All @@ -1542,26 +1506,15 @@ s32 ixgbe_update_mc_addr_list_generic(struct ixgbe_hw *hw, u8 *mc_addr_list,
u32 mc_addr_count, ixgbe_mc_addr_itr next)
{
u32 i;
u32 rar_entries = hw->mac.num_rar_entries;
u32 vmdq;

/*
* Set the new number of MC addresses that we are being requested to
* use.
*/
hw->addr_ctrl.num_mc_addrs = mc_addr_count;
hw->addr_ctrl.rar_used_count -= hw->addr_ctrl.mc_addr_in_rar_count;
hw->addr_ctrl.mc_addr_in_rar_count = 0;
hw->addr_ctrl.mta_in_use = 0;

/* Zero out the other receive addresses. */
hw_dbg(hw, "Clearing RAR[%d-%d]\n", hw->addr_ctrl.rar_used_count,
rar_entries - 1);
for (i = hw->addr_ctrl.rar_used_count; i < rar_entries; i++) {
IXGBE_WRITE_REG(hw, IXGBE_RAL(i), 0);
IXGBE_WRITE_REG(hw, IXGBE_RAH(i), 0);
}

/* Clear the MTA */
hw_dbg(hw, " Clearing MTA\n");
for (i = 0; i < hw->mac.mcft_size; i++)
Expand All @@ -1570,7 +1523,7 @@ s32 ixgbe_update_mc_addr_list_generic(struct ixgbe_hw *hw, u8 *mc_addr_list,
/* Add the new addresses */
for (i = 0; i < mc_addr_count; i++) {
hw_dbg(hw, " Adding the multicast addresses:\n");
ixgbe_add_mc_addr(hw, next(hw, &mc_addr_list, &vmdq));
ixgbe_set_mta(hw, next(hw, &mc_addr_list, &vmdq));
}

/* Enable mta */
Expand Down
10 changes: 4 additions & 6 deletions drivers/net/ixgbe/ixgbe_main.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -3646,6 +3646,8 @@ static int ixgbe_resume(struct pci_dev *pdev)

ixgbe_reset(adapter);

IXGBE_WRITE_REG(&adapter->hw, IXGBE_WUS, ~0);

if (netif_running(netdev)) {
err = ixgbe_open(adapter->netdev);
if (err)
Expand Down Expand Up @@ -4575,7 +4577,6 @@ static int __devinit ixgbe_probe(struct pci_dev *pdev,
const struct ixgbe_info *ii = ixgbe_info_tbl[ent->driver_data];
static int cards_found;
int i, err, pci_using_dac;
u16 pm_value = 0;
u32 part_num, eec;

err = pci_enable_device(pdev);
Expand Down Expand Up @@ -4763,11 +4764,8 @@ static int __devinit ixgbe_probe(struct pci_dev *pdev,

switch (pdev->device) {
case IXGBE_DEV_ID_82599_KX4:
#define IXGBE_PCIE_PMCSR 0x44
adapter->wol = IXGBE_WUFC_MAG;
pci_read_config_word(pdev, IXGBE_PCIE_PMCSR, &pm_value);
pci_write_config_word(pdev, IXGBE_PCIE_PMCSR,
(pm_value | (1 << 8)));
adapter->wol = (IXGBE_WUFC_MAG | IXGBE_WUFC_EX |
IXGBE_WUFC_MC | IXGBE_WUFC_BC);
break;
default:
adapter->wol = 0;
Expand Down

0 comments on commit 495dce1

Please sign in to comment.