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e1000e: Serdes - attempt autoneg when link restored.

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This patch addresses an issue where we did not restart auto-negotiation on
serdes links when the link partner was disabled and re-enabled. It includes
reworking the serdes link detect mechanism to be a state machine for
82571 and 82572 parts only.

Signed-off-by: dave graham <david.graham@intel.com>
Acked-by: Bruce Allan <bruce.w.allan@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:
dave graham
2009-02-10 12:52:28 +00:00
committed by David S. Miller
parent 573cca8c6f
commit c9523379d6
2 changed files with 139 additions and 1 deletions
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8
drivers/net/e1000e/hw.h
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@@ -459,6 +459,13 @@ enum e1000_smart_speed {
e1000_smart_speed_off
};
enum e1000_serdes_link_state {
e1000_serdes_link_down = 0,
e1000_serdes_link_autoneg_progress,
e1000_serdes_link_autoneg_complete,
e1000_serdes_link_forced_up
};
/* Receive Descriptor */
struct e1000_rx_desc {
__le64 buffer_addr; /* Address of the descriptor's data buffer */
@@ -787,6 +794,7 @@ struct e1000_mac_info {
bool in_ifs_mode;
bool serdes_has_link;
bool tx_pkt_filtering;
enum e1000_serdes_link_state serdes_link_state;
};
struct e1000_phy_info {