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

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
...@@ -104,6 +104,7 @@ config QED_SRIOV ...@@ -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 ...
......
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
...@@ -137,6 +137,8 @@ struct qede_rdma_dev { ...@@ -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 { ...@@ -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)
......
...@@ -39,6 +39,7 @@ ...@@ -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, ...@@ -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 = { ...@@ -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,
......
...@@ -40,6 +40,7 @@ ...@@ -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, ...@@ -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) ...@@ -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);
......
...@@ -62,6 +62,7 @@ ...@@ -62,6 +62,7 @@
#include <linux/vmalloc.h> #include <linux/vmalloc.h>
#include <linux/qed/qede_roce.h> #include <linux/qed/qede_roce.h>
#include "qede.h" #include "qede.h"
#include "qede_ptp.h"
static char version[] = static char version[] =
"QLogic FastLinQ 4xxxx Ethernet Driver qede " DRV_MODULE_VERSION "\n"; "QLogic FastLinQ 4xxxx Ethernet Driver qede " DRV_MODULE_VERSION "\n";
...@@ -484,6 +485,25 @@ static int qede_set_vf_trust(struct net_device *dev, int vfidx, bool setting) ...@@ -484,6 +485,25 @@ static int qede_set_vf_trust(struct net_device *dev, int vfidx, bool setting)
} }
#endif #endif
static int qede_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
{
struct qede_dev *edev = netdev_priv(dev);
if (!netif_running(dev))
return -EAGAIN;
switch (cmd) {
case SIOCSHWTSTAMP:
return qede_ptp_hw_ts(edev, ifr);
default:
DP_VERBOSE(edev, QED_MSG_DEBUG,
"default IOCTL cmd 0x%x\n", cmd);
return -EOPNOTSUPP;
}
return 0;
}
static const struct net_device_ops qede_netdev_ops = { static const struct net_device_ops qede_netdev_ops = {
.ndo_open = qede_open, .ndo_open = qede_open,
.ndo_stop = qede_close, .ndo_stop = qede_close,
...@@ -492,6 +512,7 @@ static const struct net_device_ops qede_netdev_ops = { ...@@ -492,6 +512,7 @@ static const struct net_device_ops qede_netdev_ops = {
.ndo_set_mac_address = qede_set_mac_addr, .ndo_set_mac_address = qede_set_mac_addr,
.ndo_validate_addr = eth_validate_addr, .ndo_validate_addr = eth_validate_addr,
.ndo_change_mtu = qede_change_mtu, .ndo_change_mtu = qede_change_mtu,
.ndo_do_ioctl = qede_ioctl,
#ifdef CONFIG_QED_SRIOV #ifdef CONFIG_QED_SRIOV
.ndo_set_vf_mac = qede_set_vf_mac, .ndo_set_vf_mac = qede_set_vf_mac,
.ndo_set_vf_vlan = qede_set_vf_vlan, .ndo_set_vf_vlan = qede_set_vf_vlan,
...@@ -841,6 +862,15 @@ static int __qede_probe(struct pci_dev *pdev, u32 dp_module, u8 dp_level, ...@@ -841,6 +862,15 @@ static int __qede_probe(struct pci_dev *pdev, u32 dp_module, u8 dp_level,
edev->ops->common->set_id(cdev, edev->ndev->name, DRV_MODULE_VERSION); edev->ops->common->set_id(cdev, edev->ndev->name, DRV_MODULE_VERSION);
/* PTP not supported on VFs */
if (!is_vf) {
rc = qede_ptp_register_phc(edev);
if (rc) {
DP_NOTICE(edev, "Cannot register PHC\n");
goto err5;
}
}
edev->ops->register_ops(cdev, &qede_ll_ops, edev); edev->ops->register_ops(cdev, &qede_ll_ops, edev);
#ifdef CONFIG_DCB #ifdef CONFIG_DCB
...@@ -856,6 +886,8 @@ static int __qede_probe(struct pci_dev *pdev, u32 dp_module, u8 dp_level, ...@@ -856,6 +886,8 @@ static int __qede_probe(struct pci_dev *pdev, u32 dp_module, u8 dp_level,
return 0; return 0;
err5:
unregister_netdev(edev->ndev);
err4: err4:
qede_roce_dev_remove(edev); qede_roce_dev_remove(edev);
err3: err3:
...@@ -907,6 +939,8 @@ static void __qede_remove(struct pci_dev *pdev, enum qede_remove_mode mode) ...@@ -907,6 +939,8 @@ static void __qede_remove(struct pci_dev *pdev, enum qede_remove_mode mode)
unregister_netdev(ndev); unregister_netdev(ndev);
qede_ptp_remove(edev);
qede_roce_dev_remove(edev); qede_roce_dev_remove(edev);
edev->ops->common->set_power_state(cdev, PCI_D0); edev->ops->common->set_power_state(cdev, PCI_D0);
...@@ -1660,6 +1694,7 @@ static int qede_start_queues(struct qede_dev *edev, bool clear_stats) ...@@ -1660,6 +1694,7 @@ static int qede_start_queues(struct qede_dev *edev, bool clear_stats)
if (!vport_update_params) if (!vport_update_params)
return -ENOMEM; return -ENOMEM;
start.handle_ptp_pkts = !!(edev->ptp);
start.gro_enable = !edev->gro_disable; start.gro_enable = !edev->gro_disable;
start.mtu = edev->ndev->mtu; start.mtu = edev->ndev->mtu;
start.vport_id = 0; start.vport_id = 0;
...@@ -1781,6 +1816,8 @@ static void qede_unload(struct qede_dev *edev, enum qede_unload_mode mode, ...@@ -1781,6 +1816,8 @@ static void qede_unload(struct qede_dev *edev, enum qede_unload_mode mode,
qede_roce_dev_event_close(edev); qede_roce_dev_event_close(edev);
edev->state = QEDE_STATE_CLOSED; edev->state = QEDE_STATE_CLOSED;
qede_ptp_stop(edev);
/* Close OS Tx */ /* Close OS Tx */
netif_tx_disable(edev->ndev); netif_tx_disable(edev->ndev);
netif_carrier_off(edev->ndev); netif_carrier_off(edev->ndev);
...@@ -1882,6 +1919,8 @@ static int qede_load(struct qede_dev *edev, enum qede_load_mode mode, ...@@ -1882,6 +1919,8 @@ static int qede_load(struct qede_dev *edev, enum qede_load_mode mode,
qede_roce_dev_event_open(edev); qede_roce_dev_event_open(edev);
qede_link_update(edev, &link_output); qede_link_update(edev, &link_output);
qede_ptp_start(edev, (mode == QEDE_LOAD_NORMAL));
edev->state = QEDE_STATE_OPEN; edev->state = QEDE_STATE_OPEN;
DP_INFO(edev, "Ending successfully qede load\n"); DP_INFO(edev, "Ending successfully qede load\n");
......
This diff is collapsed.
/* QLogic qede NIC Driver
* Copyright (c) 2015-2017 QLogic Corporation
*
* This software is available to you under a choice of one of two
* licenses. You may choose to be licensed under the terms of the GNU
* General Public License (GPL) Version 2, available from the file
* COPYING in the main directory of this source tree, or the
* OpenIB.org BSD license below:
*
* Redistribution and use in source and binary forms, with or
* without modification, are permitted provided that the following
* conditions are met:
*
* - Redistributions of source code must retain the above
* copyright notice, this list of conditions and the following
* disclaimer.
*
* - Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and /or other materials
* provided with the distribution.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#ifndef _QEDE_PTP_H_
#define _QEDE_PTP_H_
#include <linux/ptp_clock_kernel.h>
#include <linux/net_tstamp.h>
#include <linux/timecounter.h>
#include "qede.h"
void qede_ptp_rx_ts(struct qede_dev *edev, struct sk_buff *skb);
void qede_ptp_tx_ts(struct qede_dev *edev, struct sk_buff *skb);
int qede_ptp_hw_ts(struct qede_dev *edev, struct ifreq *req);
void qede_ptp_start(struct qede_dev *edev, bool init_tc);
void qede_ptp_stop(struct qede_dev *edev);
void qede_ptp_remove(struct qede_dev *edev);
int qede_ptp_register_phc(struct qede_dev *edev);
int qede_ptp_get_ts_info(struct qede_dev *edev, struct ethtool_ts_info *ts);
static inline void qede_ptp_record_rx_ts(struct qede_dev *edev,
union eth_rx_cqe *cqe,
struct sk_buff *skb)
{
/* Check if this packet was timestamped */
if (unlikely(le16_to_cpu(cqe->fast_path_regular.pars_flags.flags) &
(1 << PARSING_AND_ERR_FLAGS_TIMESTAMPRECORDED_SHIFT))) {
if (likely(le16_to_cpu(cqe->fast_path_regular.pars_flags.flags)
& (1 << PARSING_AND_ERR_FLAGS_TIMESYNCPKT_SHIFT))) {
qede_ptp_rx_ts(edev, skb);
} else {
DP_INFO(edev,
"Timestamp recorded for non PTP packets\n");
}
}
}
#endif /* _QEDE_PTP_H_ */
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