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e1000e: add support for IEEE-1588 PTP

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Add PTP IEEE-1588 support and make accesible via the PHC subsystem.

v2: make e1000e_ptp_clock_info a static const struct per Stephen Hemminger

Cc: Stephen Hemminger <stephen@networkplumber.org>
Cc: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Reviewed-by: Jacob Keller <Jacob.e.keller@intel.com>
Acked-by: Richard Cochran <richardcochran@gmail.com>
Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This commit is contained in:
Bruce Allan
2013-01-19 01:09:58 +00:00
committed by Jeff Kirsher
parent 347b5201cb
commit d89777bf0e
8 changed files with 417 additions and 3 deletions
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9
drivers/net/ethernet/intel/e1000e/e1000.h
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@@ -43,7 +43,8 @@
#include <linux/if_vlan.h>
#include <linux/clocksource.h>
#include <linux/net_tstamp.h>
#include <linux/ptp_clock_kernel.h>
#include <linux/ptp_classify.h>
#include "hw.h"
struct e1000_info;
@@ -413,6 +414,8 @@ struct e1000_adapter {
spinlock_t systim_lock; /* protects SYSTIML/H regsters */
struct cyclecounter cc;
struct timecounter tc;
struct ptp_clock *ptp_clock;
struct ptp_clock_info ptp_clock_info;
};
struct e1000_info {
@@ -427,6 +430,8 @@ struct e1000_info {
const struct e1000_nvm_operations *nvm_ops;
};
s32 e1000e_get_base_timinca(struct e1000_adapter *adapter, u32 *timinca);
/* The system time is maintained by a 64-bit counter comprised of the 32-bit
* SYSTIMH and SYSTIML registers. How the counter increments (and therefore
* its resolution) is based on the contents of the TIMINCA register - it
@@ -704,6 +709,8 @@ extern s32 e1000_phy_force_speed_duplex_ife(struct e1000_hw *hw);
extern s32 e1000_check_polarity_igp(struct e1000_hw *hw);
extern bool e1000_check_phy_82574(struct e1000_hw *hw);
extern s32 e1000_read_emi_reg_locked(struct e1000_hw *hw, u16 addr, u16 *data);
extern void e1000e_ptp_init(struct e1000_adapter *adapter);
extern void e1000e_ptp_remove(struct e1000_adapter *adapter);
static inline s32 e1000_phy_hw_reset(struct e1000_hw *hw)
{