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e1000: convert hardware management from timers to threads

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Thomas Gleixner (tglx) reported that e1000 was delaying for many milliseconds
(using mdelay) from inside timer/interrupt context.  None of these paths are
performance critical and can be moved into threads/work items.  This patch
implements the work items and the next patch changes the mdelays to msleeps.

Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
CC: Thomas Gleixner <tglx@linutronix.de>
CC: Tushar Dave <tushar.n.dave@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This commit is contained in:
Jesse Brandeburg
2011-10-05 07:24:41 +00:00
committed by Jeff Kirsher
parent 19d478bbe6
commit a4010afef5
2 changed files with 55 additions and 84 deletions
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10
drivers/net/ethernet/intel/e1000/e1000.h
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@@ -214,9 +214,6 @@ struct e1000_rx_ring {
/* board specific private data structure */
struct e1000_adapter {
struct timer_list tx_fifo_stall_timer;
struct timer_list watchdog_timer;
struct timer_list phy_info_timer;
unsigned long active_vlans[BITS_TO_LONGS(VLAN_N_VID)];
u16 mng_vlan_id;
u32 bd_number;
@@ -237,7 +234,6 @@ struct e1000_adapter {
u16 tx_itr;
u16 rx_itr;
struct work_struct reset_task;
u8 fc_autoneg;
/* TX */
@@ -310,8 +306,10 @@ struct e1000_adapter {
bool discarding;
struct work_struct fifo_stall_task;
struct work_struct phy_info_task;
struct work_struct reset_task;
struct delayed_work watchdog_task;
struct delayed_work fifo_stall_task;
struct delayed_work phy_info_task;
};
enum e1000_state_t {