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ixgbe: Move PHY ops initialization to centralize bus accesses
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When PHY operations are determined, the PHY must be identified.  This
identification causes bus access, and should be contained within its own
routines.  This also helps the 82599 PHY init paths for both SFP+ and
KX/KX4 devices to be easier to maintain.

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>
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PJ Waskiewicz authored and David S. Miller committed Apr 11, 2009
1 parent d3e9c56 commit 04f165e
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Showing 4 changed files with 107 additions and 50 deletions.
77 changes: 52 additions & 25 deletions drivers/net/ixgbe/ixgbe_82598.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -73,20 +73,51 @@ static u16 ixgbe_get_pcie_msix_count_82598(struct ixgbe_hw *hw)
/**
*/
static s32 ixgbe_get_invariants_82598(struct ixgbe_hw *hw)
{
struct ixgbe_mac_info *mac = &hw->mac;

/* Call PHY identify routine to get the phy type */
ixgbe_identify_phy_generic(hw);

mac->mcft_size = IXGBE_82598_MC_TBL_SIZE;
mac->vft_size = IXGBE_82598_VFT_TBL_SIZE;
mac->num_rar_entries = IXGBE_82598_RAR_ENTRIES;
mac->max_rx_queues = IXGBE_82598_MAX_RX_QUEUES;
mac->max_tx_queues = IXGBE_82598_MAX_TX_QUEUES;
mac->max_msix_vectors = ixgbe_get_pcie_msix_count_82598(hw);

return 0;
}

/**
* ixgbe_init_phy_ops_82598 - PHY/SFP specific init
* @hw: pointer to hardware structure
*
* Initialize any function pointers that were not able to be
* set during get_invariants because the PHY/SFP type was
* not known. Perform the SFP init if necessary.
*
**/
s32 ixgbe_init_phy_ops_82598(struct ixgbe_hw *hw)
{
struct ixgbe_mac_info *mac = &hw->mac;
struct ixgbe_phy_info *phy = &hw->phy;
s32 ret_val = 0;
u16 list_offset, data_offset;

/* Set the bus information prior to PHY identification */
mac->ops.get_bus_info(hw);
/* Identify the PHY */
phy->ops.identify(hw);

/* Call PHY identify routine to get the phy type */
ixgbe_identify_phy_generic(hw);
/* Overwrite the link function pointers if copper PHY */
if (mac->ops.get_media_type(hw) == ixgbe_media_type_copper) {
mac->ops.setup_link = &ixgbe_setup_copper_link_82598;
mac->ops.setup_link_speed =
&ixgbe_setup_copper_link_speed_82598;
mac->ops.get_link_capabilities =
&ixgbe_get_copper_link_capabilities_82598;
}

/* PHY Init */
switch (phy->type) {
switch (hw->phy.type) {
case ixgbe_phy_tn:
phy->ops.check_link = &ixgbe_check_phy_link_tnx;
phy->ops.get_firmware_version =
Expand All @@ -106,8 +137,8 @@ static s32 ixgbe_get_invariants_82598(struct ixgbe_hw *hw)

/* Check to see if SFP+ module is supported */
ret_val = ixgbe_get_sfp_init_sequence_offsets(hw,
&list_offset,
&data_offset);
&list_offset,
&data_offset);
if (ret_val != 0) {
ret_val = IXGBE_ERR_SFP_NOT_SUPPORTED;
goto out;
Expand All @@ -117,21 +148,6 @@ static s32 ixgbe_get_invariants_82598(struct ixgbe_hw *hw)
break;
}

if (mac->ops.get_media_type(hw) == ixgbe_media_type_copper) {
mac->ops.setup_link = &ixgbe_setup_copper_link_82598;
mac->ops.setup_link_speed =
&ixgbe_setup_copper_link_speed_82598;
mac->ops.get_link_capabilities =
&ixgbe_get_copper_link_capabilities_82598;
}

mac->mcft_size = IXGBE_82598_MC_TBL_SIZE;
mac->vft_size = IXGBE_82598_VFT_TBL_SIZE;
mac->num_rar_entries = IXGBE_82598_RAR_ENTRIES;
mac->max_rx_queues = IXGBE_82598_MAX_RX_QUEUES;
mac->max_tx_queues = IXGBE_82598_MAX_TX_QUEUES;
mac->max_msix_vectors = ixgbe_get_pcie_msix_count_82598(hw);

out:
return ret_val;
}
Expand Down Expand Up @@ -719,14 +735,23 @@ static s32 ixgbe_reset_hw_82598(struct ixgbe_hw *hw)
}

/* Reset PHY */
if (hw->phy.reset_disable == false)
if (hw->phy.reset_disable == false) {
/* PHY ops must be identified and initialized prior to reset */

/* Init PHY and function pointers, perform SFP setup */
status = hw->phy.ops.init(hw);
if (status == IXGBE_ERR_SFP_NOT_SUPPORTED)
goto reset_hw_out;

hw->phy.ops.reset(hw);
}

/*
* Prevent the PCI-E bus from from hanging by disabling PCI-E master
* access and verify no pending requests before reset
*/
if (ixgbe_disable_pcie_master(hw) != 0) {
status = ixgbe_disable_pcie_master(hw);
if (status != 0) {
status = IXGBE_ERR_MASTER_REQUESTS_PENDING;
hw_dbg(hw, "PCI-E Master disable polling has failed.\n");
}
Expand Down Expand Up @@ -773,6 +798,7 @@ static s32 ixgbe_reset_hw_82598(struct ixgbe_hw *hw)
/* Store the permanent mac address */
hw->mac.ops.get_mac_addr(hw, hw->mac.perm_addr);

reset_hw_out:
return status;
}

Expand Down Expand Up @@ -1157,6 +1183,7 @@ static struct ixgbe_eeprom_operations eeprom_ops_82598 = {
static struct ixgbe_phy_operations phy_ops_82598 = {
.identify = &ixgbe_identify_phy_generic,
.identify_sfp = &ixgbe_identify_sfp_module_generic,
.init = &ixgbe_init_phy_ops_82598,
.reset = &ixgbe_reset_phy_generic,
.read_reg = &ixgbe_read_phy_reg_generic,
.write_reg = &ixgbe_write_phy_reg_generic,
Expand Down
70 changes: 46 additions & 24 deletions drivers/net/ixgbe/ixgbe_82599.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -148,51 +148,60 @@ u32 ixgbe_get_pcie_msix_count_82599(struct ixgbe_hw *hw)
static s32 ixgbe_get_invariants_82599(struct ixgbe_hw *hw)
{
struct ixgbe_mac_info *mac = &hw->mac;
struct ixgbe_phy_info *phy = &hw->phy;
s32 ret_val;

/* Set the bus information prior to PHY identification */
mac->ops.get_bus_info(hw);
ixgbe_init_mac_link_ops_82599(hw);

/* Call PHY identify routine to get the Cu or SFI phy type */
ret_val = phy->ops.identify(hw);
mac->mcft_size = IXGBE_82599_MC_TBL_SIZE;
mac->vft_size = IXGBE_82599_VFT_TBL_SIZE;
mac->num_rar_entries = IXGBE_82599_RAR_ENTRIES;
mac->max_rx_queues = IXGBE_82599_MAX_RX_QUEUES;
mac->max_tx_queues = IXGBE_82599_MAX_TX_QUEUES;
mac->max_msix_vectors = ixgbe_get_pcie_msix_count_82599(hw);

if (ret_val == IXGBE_ERR_SFP_NOT_SUPPORTED)
goto get_invariants_out;
return 0;
}

ixgbe_init_mac_link_ops_82599(hw);
/**
* ixgbe_init_phy_ops_82599 - PHY/SFP specific init
* @hw: pointer to hardware structure
*
* Initialize any function pointers that were not able to be
* set during get_invariants because the PHY/SFP type was
* not known. Perform the SFP init if necessary.
*
**/
s32 ixgbe_init_phy_ops_82599(struct ixgbe_hw *hw)
{
struct ixgbe_mac_info *mac = &hw->mac;
struct ixgbe_phy_info *phy = &hw->phy;
s32 ret_val = 0;

/* Setup SFP module if there is one present. */
ret_val = mac->ops.setup_sfp(hw);
/* Identify the PHY or SFP module */
ret_val = phy->ops.identify(hw);

/* Setup function pointers based on detected SFP module and speeds */
ixgbe_init_mac_link_ops_82599(hw);

/* If copper media, overwrite with copper function pointers */
if (mac->ops.get_media_type(hw) == ixgbe_media_type_copper) {
mac->ops.setup_link = &ixgbe_setup_copper_link_82599;
mac->ops.setup_link_speed =
&ixgbe_setup_copper_link_speed_82599;
&ixgbe_setup_copper_link_speed_82599;
mac->ops.get_link_capabilities =
&ixgbe_get_copper_link_capabilities_82599;
}

/* PHY Init */
/* Set necessary function pointers based on phy type */
switch (hw->phy.type) {
case ixgbe_phy_tn:
phy->ops.check_link = &ixgbe_check_phy_link_tnx;
phy->ops.get_firmware_version =
&ixgbe_get_phy_firmware_version_tnx;
&ixgbe_get_phy_firmware_version_tnx;
break;
default:
break;
}

mac->mcft_size = IXGBE_82599_MC_TBL_SIZE;
mac->vft_size = IXGBE_82599_VFT_TBL_SIZE;
mac->num_rar_entries = IXGBE_82599_RAR_ENTRIES;
mac->max_rx_queues = IXGBE_82599_MAX_RX_QUEUES;
mac->max_tx_queues = IXGBE_82599_MAX_TX_QUEUES;
mac->max_msix_vectors = ixgbe_get_pcie_msix_count_82599(hw);

get_invariants_out:
return ret_val;
}

Expand Down Expand Up @@ -708,13 +717,24 @@ s32 ixgbe_reset_hw_82599(struct ixgbe_hw *hw)
hw->mac.ops.stop_adapter(hw);

/* Reset PHY */
hw->phy.ops.reset(hw);
if (hw->phy.reset_disable == false) {
/* PHY ops must be identified and initialized prior to reset */

/* Init PHY and function pointers, perform SFP setup */
status = hw->phy.ops.init(hw);

if (status == IXGBE_ERR_SFP_NOT_SUPPORTED)
goto reset_hw_out;

hw->phy.ops.reset(hw);
}

/*
* Prevent the PCI-E bus from from hanging by disabling PCI-E master
* access and verify no pending requests before reset
*/
if (ixgbe_disable_pcie_master(hw) != 0) {
status = ixgbe_disable_pcie_master(hw);
if (status != 0) {
status = IXGBE_ERR_MASTER_REQUESTS_PENDING;
hw_dbg(hw, "PCI-E Master disable polling has failed.\n");
}
Expand Down Expand Up @@ -775,6 +795,7 @@ s32 ixgbe_reset_hw_82599(struct ixgbe_hw *hw)
/* Store the permanent mac address */
hw->mac.ops.get_mac_addr(hw, hw->mac.perm_addr);

reset_hw_out:
return status;
}

Expand Down Expand Up @@ -1272,6 +1293,7 @@ static struct ixgbe_eeprom_operations eeprom_ops_82599 = {
static struct ixgbe_phy_operations phy_ops_82599 = {
.identify = &ixgbe_identify_phy_82599,
.identify_sfp = &ixgbe_identify_sfp_module_generic,
.init = &ixgbe_init_phy_ops_82599,
.reset = &ixgbe_reset_phy_generic,
.read_reg = &ixgbe_read_phy_reg_generic,
.write_reg = &ixgbe_write_phy_reg_generic,
Expand Down
9 changes: 8 additions & 1 deletion drivers/net/ixgbe/ixgbe_main.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -4630,7 +4630,11 @@ static int __devinit ixgbe_probe(struct pci_dev *pdev,

/* reset_hw fills in the perm_addr as well */
err = hw->mac.ops.reset_hw(hw);
if (err) {
if (err == IXGBE_ERR_SFP_NOT_SUPPORTED) {
dev_err(&adapter->pdev->dev, "failed to load because an "
"unsupported SFP+ module type was detected.\n");
goto err_sw_init;
} else if (err) {
dev_err(&adapter->pdev->dev, "HW Init failed: %d\n", err);
goto err_sw_init;
}
Expand Down Expand Up @@ -4703,6 +4707,9 @@ static int __devinit ixgbe_probe(struct pci_dev *pdev,
device_init_wakeup(&adapter->pdev->dev, true);
device_set_wakeup_enable(&adapter->pdev->dev, adapter->wol);

/* pick up the PCI bus settings for reporting later */
hw->mac.ops.get_bus_info(hw);

/* print bus type/speed/width info */
dev_info(&pdev->dev, "(PCI Express:%s:%s) %pM\n",
((hw->bus.speed == ixgbe_bus_speed_5000) ? "5.0Gb/s":
Expand Down
1 change: 1 addition & 0 deletions drivers/net/ixgbe/ixgbe_type.h
View file
Original file line number Diff line number Diff line change
Expand Up @@ -2150,6 +2150,7 @@ struct ixgbe_mac_operations {
struct ixgbe_phy_operations {
s32 (*identify)(struct ixgbe_hw *);
s32 (*identify_sfp)(struct ixgbe_hw *);
s32 (*init)(struct ixgbe_hw *);
s32 (*reset)(struct ixgbe_hw *);
s32 (*read_reg)(struct ixgbe_hw *, u32, u32, u16 *);
s32 (*write_reg)(struct ixgbe_hw *, u32, u32, u16);
Expand Down

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