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ixgbe: Remove unnecessary PHY reset, properly identify multispeed fiber modules

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This patch does two things:
1) On 82599, the PHY is emedded in the MAC.  On 82598, the SFP+ NIC has an external PHY.  The reset in the SFP+ setup patch for 82598 is unnecessary on 82599, and adds extra dead time to device initialization.  This removes that PHY reset for 82599 only.

2) On 82599, the SFP+ modules are multispeed fiber modules (10G/1G).  We need to make sure to identify them properly for the remaining init sections to properly set them up.

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>
This commit is contained in:
PJ Waskiewicz 2009-04-09 22:28:15 +00:00 committed by David S. Miller
parent 04f165ef4f
commit 553b449784
4 changed files with 29 additions and 8 deletions
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24
drivers/net/ixgbe/ixgbe_82599.c
View File

@ -102,6 +102,9 @@ s32 ixgbe_setup_sfp_modules_82599(struct ixgbe_hw *hw)
if (hw->phy.sfp_type != ixgbe_sfp_type_unknown) {
ixgbe_init_mac_link_ops_82599(hw);
hw->phy.ops.reset = NULL;
ret_val = ixgbe_get_sfp_init_sequence_offsets(hw, &list_offset,
&data_offset);
@ -716,19 +719,24 @@ s32 ixgbe_reset_hw_82599(struct ixgbe_hw *hw)
/* Call adapter stop to disable tx/rx and clear interrupts */
hw->mac.ops.stop_adapter(hw);
/* Reset PHY */
if (hw->phy.reset_disable == false) {
/* PHY ops must be identified and initialized prior to reset */
/* PHY ops must be identified and initialized prior to reset */
/* Init PHY and function pointers, perform SFP setup */
status = hw->phy.ops.init(hw);
/* 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;
if (status == IXGBE_ERR_SFP_NOT_SUPPORTED)
goto reset_hw_out;
hw->phy.ops.reset(hw);
/* Setup SFP module if there is one present. */
if (hw->phy.sfp_setup_needed) {
status = hw->mac.ops.setup_sfp(hw);
hw->phy.sfp_setup_needed = false;
}
/* Reset PHY */
if (hw->phy.reset_disable == false && hw->phy.ops.reset != NULL)
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

11
drivers/net/ixgbe/ixgbe_phy.c
View File

@ -552,6 +552,7 @@ s32 ixgbe_identify_sfp_module_generic(struct ixgbe_hw *hw)
{
s32 status = IXGBE_ERR_PHY_ADDR_INVALID;
u32 vendor_oui = 0;
enum ixgbe_sfp_type stored_sfp_type = hw->phy.sfp_type;
u8 identifier = 0;
u8 comp_codes_1g = 0;
u8 comp_codes_10g = 0;
@ -620,6 +621,16 @@ s32 ixgbe_identify_sfp_module_generic(struct ixgbe_hw *hw)
hw->phy.sfp_type = ixgbe_sfp_type_unknown;
}
if (hw->phy.sfp_type != stored_sfp_type)
hw->phy.sfp_setup_needed = true;
/* Determine if the SFP+ PHY is dual speed or not. */
if (((comp_codes_1g & IXGBE_SFF_1GBASESX_CAPABLE) &&
(comp_codes_10g & IXGBE_SFF_10GBASESR_CAPABLE)) ||
((comp_codes_1g & IXGBE_SFF_1GBASELX_CAPABLE) &&
(comp_codes_10g & IXGBE_SFF_10GBASELR_CAPABLE)))
hw->phy.multispeed_fiber = true;
/* Determine PHY vendor */
if (hw->phy.type == ixgbe_phy_unknown) {
hw->phy.id = identifier;

1
drivers/net/ixgbe/ixgbe_phy.h
View File

@ -44,6 +44,7 @@
/* Bitmasks */
#define IXGBE_SFF_TWIN_AX_CAPABLE 0x80
#define IXGBE_SFF_1GBASESX_CAPABLE 0x1
#define IXGBE_SFF_1GBASELX_CAPABLE 0x2
#define IXGBE_SFF_10GBASESR_CAPABLE 0x10
#define IXGBE_SFF_10GBASELR_CAPABLE 0x20
#define IXGBE_I2C_EEPROM_READ_MASK 0x100

1
drivers/net/ixgbe/ixgbe_type.h
View File

@ -2198,6 +2198,7 @@ struct ixgbe_phy_info {
u32 addr;
u32 id;
enum ixgbe_sfp_type sfp_type;
bool sfp_setup_needed;
u32 revision;
enum ixgbe_media_type media_type;
bool reset_disable;