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bnx2x: Add timestamping and PTP hardware clock support

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This adds a PHC to the bnx2x driver. Driver supports timestamping send/receive
PTP packets, as well as adjusting the on-chip clock.

The driver has been tested with linuxptp project.

Signed-off-by: Michal Kalderon <Michal.Kalderon@qlogic.com>
Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: Ariel Elior <Ariel.Elior@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Michal Kalderon 2014-08-17 16:47:44 +03:00 • committed by David S. Miller
commit eeed018cbf
8 changed files with 984 additions and 13 deletions
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29
drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.h
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@ -770,7 +770,9 @@ enum {
BNX2X_Q_UPDATE_SILENT_VLAN_REM_CHNG,
BNX2X_Q_UPDATE_SILENT_VLAN_REM,
BNX2X_Q_UPDATE_TX_SWITCHING_CHNG,
BNX2X_Q_UPDATE_TX_SWITCHING
BNX2X_Q_UPDATE_TX_SWITCHING,
BNX2X_Q_UPDATE_PTP_PKTS_CHNG,
BNX2X_Q_UPDATE_PTP_PKTS,
};
/* Allowed Queue states */
@ -853,6 +855,10 @@ enum bnx2x_q_type {
#define BNX2X_MULTI_TX_COS 3 /* Maximum possible */
#define MAC_PAD (ALIGN(ETH_ALEN, sizeof(u32)) - ETH_ALEN)
/* DMAE channel to be used by FW for timesync workaroun. A driver that sends
* timesync-related ramrods must not use this DMAE command ID.
*/
#define FW_DMAE_CMD_ID 6
struct bnx2x_queue_init_params {
struct {
@ -1117,6 +1123,7 @@ enum bnx2x_func_cmd {
BNX2X_F_CMD_TX_STOP,
BNX2X_F_CMD_TX_START,
BNX2X_F_CMD_SWITCH_UPDATE,
BNX2X_F_CMD_SET_TIMESYNC,
BNX2X_F_CMD_MAX,
};
@ -1191,6 +1198,7 @@ struct bnx2x_func_afex_viflists_params {
u8 afex_vif_list_command;
u8 func_to_clear;
};
struct bnx2x_func_tx_start_params {
struct priority_cos traffic_type_to_priority_cos[MAX_TRAFFIC_TYPES];
u8 dcb_enabled;
@ -1198,6 +1206,24 @@ struct bnx2x_func_tx_start_params {
u8 dont_add_pri_0_en;
};
struct bnx2x_func_set_timesync_params {
/* Reset, set or keep the current drift value */
u8 drift_adjust_cmd;
/* Dec, inc or keep the current offset */
u8 offset_cmd;
/* Drift value direction */
u8 add_sub_drift_adjust_value;
/* Drift, period and offset values to be used according to the commands
* above.
*/
u8 drift_adjust_value;
u32 drift_adjust_period;
u64 offset_delta;
};
struct bnx2x_func_state_params {
struct bnx2x_func_sp_obj *f_obj;
@ -1216,6 +1242,7 @@ struct bnx2x_func_state_params {
struct bnx2x_func_afex_update_params afex_update;
struct bnx2x_func_afex_viflists_params afex_viflists;
struct bnx2x_func_tx_start_params tx_start;
struct bnx2x_func_set_timesync_params set_timesync;
} params;
};