Commit e462b271 authored by Horatiu Vultur's avatar Horatiu Vultur Committed by David S. Miller
Browse files

net: lan966x: Add offload support for taprio 



Lan966x switch supports time-based egress shaping in hardware
according to IEEE 802.1Qbv. Add support for TAS configuration on
egress port of lan966x switch.

Signed-off-by: default avatarHoratiu Vultur <horatiu.vultur@microchip.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 2a252a0b

drivers/net/ethernet/microchip/lan966x/Makefile

+1 −1
Original line number Diff line number Diff line
@@ -9,4 +9,4 @@ lan966x-switch-objs := lan966x_main.o lan966x_phylink.o lan966x_port.o \ 
			lan966x_mac.o lan966x_ethtool.o lan966x_switchdev.o \

			lan966x_vlan.o lan966x_fdb.o lan966x_mdb.o \

			lan966x_ptp.o lan966x_fdma.o lan966x_lag.o \

			lan966x_tc.o lan966x_mqprio.o
 
			lan966x_tc.o lan966x_mqprio.o lan966x_taprio.o

drivers/net/ethernet/microchip/lan966x/lan966x_main.c

+3 −0
Original line number Diff line number Diff line
@@ -963,6 +963,8 @@ static void lan966x_init(struct lan966x *lan966x) 
		lan966x, ANA_ANAINTR);



	spin_lock_init(&lan966x->tx_lock);



	lan966x_taprio_init(lan966x);

}



static int lan966x_ram_init(struct lan966x *lan966x)
@@ -1172,6 +1174,7 @@ static int lan966x_remove(struct platform_device *pdev) 
{

	struct lan966x *lan966x = platform_get_drvdata(pdev);



	lan966x_taprio_deinit(lan966x);

	lan966x_fdma_deinit(lan966x);

	lan966x_cleanup_ports(lan966x);

drivers/net/ethernet/microchip/lan966x/lan966x_main.h

+10 −0
Original line number Diff line number Diff line
@@ -9,6 +9,7 @@ 
#include <linux/phy.h>

#include <linux/phylink.h>

#include <linux/ptp_clock_kernel.h>

#include <net/pkt_sched.h>

#include <net/switchdev.h>



#include "lan966x_regs.h"
@@ -410,6 +411,8 @@ void lan966x_ptp_txtstamp_release(struct lan966x_port *port, 
				  struct sk_buff *skb);

irqreturn_t lan966x_ptp_irq_handler(int irq, void *args);

irqreturn_t lan966x_ptp_ext_irq_handler(int irq, void *args);

u32 lan966x_ptp_get_period_ps(void);

int lan966x_ptp_gettime64(struct ptp_clock_info *ptp, struct timespec64 *ts);



int lan966x_fdma_xmit(struct sk_buff *skb, __be32 *ifh, struct net_device *dev);

int lan966x_fdma_change_mtu(struct lan966x *lan966x);
@@ -452,6 +455,13 @@ int lan966x_tc_setup(struct net_device *dev, enum tc_setup_type type, 
int lan966x_mqprio_add(struct lan966x_port *port, u8 num_tc);

int lan966x_mqprio_del(struct lan966x_port *port);



void lan966x_taprio_init(struct lan966x *lan966x);

void lan966x_taprio_deinit(struct lan966x *lan966x);

int lan966x_taprio_add(struct lan966x_port *port,

		       struct tc_taprio_qopt_offload *qopt);

int lan966x_taprio_del(struct lan966x_port *port);

int lan966x_taprio_speed_set(struct lan966x_port *port, int speed);



static inline void __iomem *lan_addr(void __iomem *base[],

				     int id, int tinst, int tcnt,

				     int gbase, int ginst,

drivers/net/ethernet/microchip/lan966x/lan966x_port.c

+2 −0
Original line number Diff line number Diff line
@@ -165,6 +165,8 @@ static void lan966x_port_link_up(struct lan966x_port *port) 
		break;

	}



	lan966x_taprio_speed_set(port, config->speed);



	/* Also the GIGA_MODE_ENA(1) needs to be set regardless of the

	 * port speed for QSGMII ports.

	 */

drivers/net/ethernet/microchip/lan966x/lan966x_ptp.c

+7 −2
Original line number Diff line number Diff line
@@ -464,8 +464,7 @@ static int lan966x_ptp_settime64(struct ptp_clock_info *ptp, 
	return 0;

}



static int lan966x_ptp_gettime64(struct ptp_clock_info *ptp,

				 struct timespec64 *ts)

int lan966x_ptp_gettime64(struct ptp_clock_info *ptp, struct timespec64 *ts)

{

	struct lan966x_phc *phc = container_of(ptp, struct lan966x_phc, info);

	struct lan966x *lan966x = phc->lan966x;
@@ -890,3 +889,9 @@ void lan966x_ptp_rxtstamp(struct lan966x *lan966x, struct sk_buff *skb, 
	shhwtstamps = skb_hwtstamps(skb);

	shhwtstamps->hwtstamp = full_ts_in_ns;

}



u32 lan966x_ptp_get_period_ps(void)

{

	/* This represents the system clock period in picoseconds */

	return 15125;

}