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Commit 4c55215c authored by Sudarsana Reddy Kalluru's avatar Sudarsana Reddy Kalluru Committed by David S. Miller
Browse files

qede: Add driver support for PTP 



This patch adds the driver support for,
  - Registering the ptp clock functionality with the OS.
  - Timestamping the Rx/Tx PTP packets.
  - Ethtool callbacks related to PTP.

Signed-off-by: default avatarSudarsana Reddy Kalluru <Sudarsana.Kalluru@cavium.com>
Signed-off-by: default avatarYuval Mintz <Yuval.Mintz@cavium.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent c78c70fa

drivers/net/ethernet/qlogic/Kconfig

+1 −0
Original line number Original line Diff line number Diff line
@@ -104,6 +104,7 @@ config QED_SRIOV 
config QEDE

config QEDE

	tristate "QLogic QED 25/40/100Gb Ethernet NIC"

	tristate "QLogic QED 25/40/100Gb Ethernet NIC"

	depends on QED

	depends on QED

	imply PTP_1588_CLOCK

	---help---

	---help---

	  This enables the support for ...

	  This enables the support for ...

drivers/net/ethernet/qlogic/qede/Makefile

+1 −1
Original line number Original line Diff line number Diff line 
obj-$(CONFIG_QEDE) := qede.o

obj-$(CONFIG_QEDE) := qede.o





qede-y := qede_main.o qede_fp.o qede_filter.o qede_ethtool.o

qede-y := qede_main.o qede_fp.o qede_filter.o qede_ethtool.o qede_ptp.o

qede-$(CONFIG_DCB) += qede_dcbnl.o

qede-$(CONFIG_DCB) += qede_dcbnl.o

qede-$(CONFIG_QED_RDMA) += qede_roce.o
 
qede-$(CONFIG_QED_RDMA) += qede_roce.o

drivers/net/ethernet/qlogic/qede/qede.h

+4 −0
Original line number Original line Diff line number Diff line
@@ -137,6 +137,8 @@ struct qede_rdma_dev { 
	struct workqueue_struct *roce_wq;

	struct workqueue_struct *roce_wq;

};

};





struct qede_ptp;



struct qede_dev {

struct qede_dev {

	struct qed_dev			*cdev;

	struct qed_dev			*cdev;

	struct net_device		*ndev;

	struct net_device		*ndev;
@@ -148,8 +150,10 @@ struct qede_dev { 
	u32 flags;

	u32 flags;

#define QEDE_FLAG_IS_VF	BIT(0)

#define QEDE_FLAG_IS_VF	BIT(0)

#define IS_VF(edev)	(!!((edev)->flags & QEDE_FLAG_IS_VF))

#define IS_VF(edev)	(!!((edev)->flags & QEDE_FLAG_IS_VF))

#define QEDE_TX_TIMESTAMPING_EN		BIT(1)





	const struct qed_eth_ops	*ops;

	const struct qed_eth_ops	*ops;

	struct qede_ptp			*ptp;





	struct qed_dev_eth_info dev_info;

	struct qed_dev_eth_info dev_info;

#define QEDE_MAX_RSS_CNT(edev)	((edev)->dev_info.num_queues)

#define QEDE_MAX_RSS_CNT(edev)	((edev)->dev_info.num_queues)

drivers/net/ethernet/qlogic/qede/qede_ethtool.c

+10 −0
Original line number Original line Diff line number Diff line
@@ -39,6 +39,7 @@ 
#include <linux/capability.h>

#include <linux/capability.h>

#include <linux/vmalloc.h>

#include <linux/vmalloc.h>

#include "qede.h"

#include "qede.h"

#include "qede_ptp.h"





#define QEDE_RQSTAT_OFFSET(stat_name) \

#define QEDE_RQSTAT_OFFSET(stat_name) \

	 (offsetof(struct qede_rx_queue, stat_name))

	 (offsetof(struct qede_rx_queue, stat_name))
@@ -940,6 +941,14 @@ static int qede_set_channels(struct net_device *dev, 
	return 0;

	return 0;

}

}





static int qede_get_ts_info(struct net_device *dev,

			    struct ethtool_ts_info *info)

{

	struct qede_dev *edev = netdev_priv(dev);



	return qede_ptp_get_ts_info(edev, info);

}



static int qede_set_phys_id(struct net_device *dev,

static int qede_set_phys_id(struct net_device *dev,

			    enum ethtool_phys_id_state state)

			    enum ethtool_phys_id_state state)

{

{
@@ -1586,6 +1595,7 @@ static const struct ethtool_ops qede_ethtool_ops = { 
	.get_rxfh_key_size = qede_get_rxfh_key_size,

	.get_rxfh_key_size = qede_get_rxfh_key_size,

	.get_rxfh = qede_get_rxfh,

	.get_rxfh = qede_get_rxfh,

	.set_rxfh = qede_set_rxfh,

	.set_rxfh = qede_set_rxfh,

	.get_ts_info = qede_get_ts_info,

	.get_channels = qede_get_channels,

	.get_channels = qede_get_channels,

	.set_channels = qede_set_channels,

	.set_channels = qede_set_channels,

	.self_test = qede_self_test,

	.self_test = qede_self_test,

drivers/net/ethernet/qlogic/qede/qede_fp.c

+5 −0
Original line number Original line Diff line number Diff line
@@ -40,6 +40,7 @@ 
#include <linux/if_ether.h>

#include <linux/if_ether.h>

#include <linux/if_vlan.h>

#include <linux/if_vlan.h>

#include <net/ip6_checksum.h>

#include <net/ip6_checksum.h>

#include "qede_ptp.h"





#include <linux/qed/qed_if.h>

#include <linux/qed/qed_if.h>

#include "qede.h"

#include "qede.h"
@@ -1277,6 +1278,7 @@ static int qede_rx_process_cqe(struct qede_dev *edev, 
	qede_get_rxhash(skb, fp_cqe->bitfields, fp_cqe->rss_hash);

	qede_get_rxhash(skb, fp_cqe->bitfields, fp_cqe->rss_hash);

	qede_set_skb_csum(skb, csum_flag);

	qede_set_skb_csum(skb, csum_flag);

	skb_record_rx_queue(skb, rxq->rxq_id);

	skb_record_rx_queue(skb, rxq->rxq_id);

	qede_ptp_record_rx_ts(edev, cqe, skb);





	/* SKB is prepared - pass it to stack */

	/* SKB is prepared - pass it to stack */

	qede_skb_receive(edev, fp, rxq, skb, le16_to_cpu(fp_cqe->vlan_tag));

	qede_skb_receive(edev, fp, rxq, skb, le16_to_cpu(fp_cqe->vlan_tag));
@@ -1451,6 +1453,9 @@ netdev_tx_t qede_start_xmit(struct sk_buff *skb, struct net_device *ndev) 
	first_bd->data.bd_flags.bitfields =

	first_bd->data.bd_flags.bitfields =

		1 << ETH_TX_1ST_BD_FLAGS_START_BD_SHIFT;

		1 << ETH_TX_1ST_BD_FLAGS_START_BD_SHIFT;





	if (unlikely(skb_shinfo(skb)->tx_flags & SKBTX_HW_TSTAMP))

		qede_ptp_tx_ts(edev, skb);



	/* Map skb linear data for DMA and set in the first BD */

	/* Map skb linear data for DMA and set in the first BD */

	mapping = dma_map_single(txq->dev, skb->data,

	mapping = dma_map_single(txq->dev, skb->data,

				 skb_headlen(skb), DMA_TO_DEVICE);

				 skb_headlen(skb), DMA_TO_DEVICE);