################################################################################
#
# Intel Ethernet Switch Host Interface Driver
-# Copyright(c) 2013 - 2015 Intel Corporation.
+# Copyright(c) 2013 - 2016 Intel Corporation.
#
# This program is free software; you can redistribute it and/or modify it
# under the terms and conditions of the GNU General Public License,
fm10k-y := fm10k_main.o \
fm10k_common.o \
fm10k_pci.o \
- fm10k_ptp.o \
fm10k_netdev.o \
fm10k_ethtool.o \
fm10k_pf.o \
/* Intel Ethernet Switch Host Interface Driver
- * Copyright(c) 2013 - 2015 Intel Corporation.
+ * Copyright(c) 2013 - 2016 Intel Corporation.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
#include <linux/rtnetlink.h>
#include <linux/if_vlan.h>
#include <linux/pci.h>
-#include <linux/net_tstamp.h>
-#include <linux/clocksource.h>
-#include <linux/ptp_clock_kernel.h>
#include "fm10k_pf.h"
#include "fm10k_vf.h"
#ifdef CONFIG_DEBUG_FS
struct dentry *dbg_intfc;
-
#endif /* CONFIG_DEBUG_FS */
- struct ptp_clock_info ptp_caps;
- struct ptp_clock *ptp_clock;
-
- struct sk_buff_head ts_tx_skb_queue;
- u32 tx_hwtstamp_timeouts;
- struct hwtstamp_config ts_config;
- /* We are unable to actually adjust the clock beyond the frequency
- * value. Once the clock is started there is no resetting it. As
- * such we maintain a separate offset from the actual hardware clock
- * to allow for offset adjustment.
- */
- s64 ptp_adjust;
- rwlock_t systime_lock;
#ifdef CONFIG_DCB
u8 pfc_en;
#endif
static inline void fm10k_dbg_exit(void) {}
#endif /* CONFIG_DEBUG_FS */
-/* Time Stamping */
-void fm10k_systime_to_hwtstamp(struct fm10k_intfc *interface,
- struct skb_shared_hwtstamps *hwtstamp,
- u64 systime);
-void fm10k_ts_tx_enqueue(struct fm10k_intfc *interface, struct sk_buff *skb);
-void fm10k_ts_tx_hwtstamp(struct fm10k_intfc *interface, __le16 dglort,
- u64 systime);
-void fm10k_ts_reset(struct fm10k_intfc *interface);
-void fm10k_ts_init(struct fm10k_intfc *interface);
-void fm10k_ts_tx_subtask(struct fm10k_intfc *interface);
-void fm10k_ptp_register(struct fm10k_intfc *interface);
-void fm10k_ptp_unregister(struct fm10k_intfc *interface);
-int fm10k_get_ts_config(struct net_device *netdev, struct ifreq *ifr);
-int fm10k_set_ts_config(struct net_device *netdev, struct ifreq *ifr);
-
/* DCB */
#ifdef CONFIG_DCB
void fm10k_dcbnl_set_ops(struct net_device *dev);
/* Intel Ethernet Switch Host Interface Driver
- * Copyright(c) 2013 - 2015 Intel Corporation.
+ * Copyright(c) 2013 - 2016 Intel Corporation.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
FM10K_STAT("mac_rules_avail", hw.swapi.mac.avail),
FM10K_STAT("tx_hang_count", tx_timeout_count),
-
- FM10K_STAT("tx_hwtstamp_timeouts", tx_hwtstamp_timeouts),
};
static const struct fm10k_stats fm10k_gstrings_pf_stats[] = {
return fm10k_setup_tc(dev, netdev_get_num_tc(dev));
}
-static int fm10k_get_ts_info(struct net_device *dev,
- struct ethtool_ts_info *info)
-{
- struct fm10k_intfc *interface = netdev_priv(dev);
-
- info->so_timestamping =
- SOF_TIMESTAMPING_TX_SOFTWARE |
- SOF_TIMESTAMPING_RX_SOFTWARE |
- SOF_TIMESTAMPING_SOFTWARE |
- SOF_TIMESTAMPING_TX_HARDWARE |
- SOF_TIMESTAMPING_RX_HARDWARE |
- SOF_TIMESTAMPING_RAW_HARDWARE;
-
- if (interface->ptp_clock)
- info->phc_index = ptp_clock_index(interface->ptp_clock);
- else
- info->phc_index = -1;
-
- info->tx_types = BIT(HWTSTAMP_TX_OFF) | BIT(HWTSTAMP_TX_ON);
-
- info->rx_filters = BIT(HWTSTAMP_FILTER_NONE) | BIT(HWTSTAMP_FILTER_ALL);
-
- return 0;
-}
-
static const struct ethtool_ops fm10k_ethtool_ops = {
.get_strings = fm10k_get_strings,
.get_sset_count = fm10k_get_sset_count,
.set_rxfh = fm10k_set_rssh,
.get_channels = fm10k_get_channels,
.set_channels = fm10k_set_channels,
- .get_ts_info = fm10k_get_ts_info,
};
void fm10k_set_ethtool_ops(struct net_device *dev)
/* Intel Ethernet Switch Host Interface Driver
- * Copyright(c) 2013 - 2014 Intel Corporation.
+ * Copyright(c) 2013 - 2016 Intel Corporation.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
PKT_HASH_TYPE_L4 : PKT_HASH_TYPE_L3);
}
-static void fm10k_rx_hwtstamp(struct fm10k_ring *rx_ring,
- union fm10k_rx_desc *rx_desc,
- struct sk_buff *skb)
-{
- struct fm10k_intfc *interface = rx_ring->q_vector->interface;
-
- FM10K_CB(skb)->tstamp = rx_desc->q.timestamp;
-
- if (unlikely(interface->flags & FM10K_FLAG_RX_TS_ENABLED))
- fm10k_systime_to_hwtstamp(interface, skb_hwtstamps(skb),
- le64_to_cpu(rx_desc->q.timestamp));
-}
-
static void fm10k_type_trans(struct fm10k_ring *rx_ring,
union fm10k_rx_desc __maybe_unused *rx_desc,
struct sk_buff *skb)
fm10k_rx_checksum(rx_ring, rx_desc, skb);
- fm10k_rx_hwtstamp(rx_ring, rx_desc, skb);
-
FM10K_CB(skb)->fi.w.vlan = rx_desc->w.vlan;
skb_record_rx_queue(skb, rx_ring->queue_index);
/* set type for advanced descriptor with frame checksum insertion */
u32 desc_flags = 0;
- /* set timestamping bits */
- if (unlikely(skb_shinfo(skb)->tx_flags & SKBTX_HW_TSTAMP) &&
- likely(skb_shinfo(skb)->tx_flags & SKBTX_IN_PROGRESS))
- desc_flags |= FM10K_TXD_FLAG_TIME;
-
/* set checksum offload bits */
desc_flags |= FM10K_SET_FLAG(tx_flags, FM10K_TX_FLAGS_CSUM,
FM10K_TXD_FLAG_CSUM);
/* Intel Ethernet Switch Host Interface Driver
- * Copyright(c) 2013 - 2015 Intel Corporation.
+ * Copyright(c) 2013 - 2016 Intel Corporation.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
for (i = 0; i < interface->num_tx_queues; i++)
fm10k_clean_tx_ring(interface->tx_ring[i]);
-
- /* remove any stale timestamp buffers and free them */
- skb_queue_purge(&interface->ts_tx_skb_queue);
}
/**
__skb_put(skb, pad_len);
}
- /* prepare packet for hardware time stamping */
- if (unlikely(skb_shinfo(skb)->tx_flags & SKBTX_HW_TSTAMP))
- fm10k_ts_tx_enqueue(interface, skb);
-
if (r_idx >= interface->num_tx_queues)
r_idx %= interface->num_tx_queues;
return fm10k_setup_tc(dev, tc->tc);
}
-static int fm10k_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd)
-{
- switch (cmd) {
- case SIOCGHWTSTAMP:
- return fm10k_get_ts_config(netdev, ifr);
- case SIOCSHWTSTAMP:
- return fm10k_set_ts_config(netdev, ifr);
- default:
- return -EOPNOTSUPP;
- }
-}
-
static void fm10k_assign_l2_accel(struct fm10k_intfc *interface,
struct fm10k_l2_accel *l2_accel)
{
.ndo_get_vf_config = fm10k_ndo_get_vf_config,
.ndo_add_vxlan_port = fm10k_add_vxlan_port,
.ndo_del_vxlan_port = fm10k_del_vxlan_port,
- .ndo_do_ioctl = fm10k_ioctl,
.ndo_dfwd_add_station = fm10k_dfwd_add_station,
.ndo_dfwd_del_station = fm10k_dfwd_del_station,
#ifdef CONFIG_NET_POLL_CONTROLLER
/* Intel Ethernet Switch Host Interface Driver
- * Copyright(c) 2013 - 2015 Intel Corporation.
+ * Copyright(c) 2013 - 2016 Intel Corporation.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
netdev->features |= NETIF_F_HW_VLAN_CTAG_RX;
}
- /* reset clock */
- fm10k_ts_reset(interface);
-
err = netif_running(netdev) ? fm10k_open(netdev) : 0;
if (err)
goto err_open;
/* tasks only run when interface is up */
fm10k_watchdog_subtask(interface);
fm10k_check_hang_subtask(interface);
- fm10k_ts_tx_subtask(interface);
/* release lock on service events to allow scheduling next event */
fm10k_service_event_complete(interface);
return 0;
}
-static s32 fm10k_1588_msg_vf(struct fm10k_hw *hw, u32 **results,
- struct fm10k_mbx_info __always_unused *mbx)
-{
- struct fm10k_intfc *interface;
- u64 timestamp;
- s32 err;
-
- err = fm10k_tlv_attr_get_u64(results[FM10K_1588_MSG_TIMESTAMP],
- ×tamp);
- if (err)
- return err;
-
- interface = container_of(hw, struct fm10k_intfc, hw);
-
- fm10k_ts_tx_hwtstamp(interface, 0, timestamp);
-
- return 0;
-}
-
/* generic error handler for mailbox issues */
static s32 fm10k_mbx_error(struct fm10k_hw *hw, u32 **results,
struct fm10k_mbx_info __always_unused *mbx)
FM10K_TLV_MSG_TEST_HANDLER(fm10k_tlv_msg_test),
FM10K_VF_MSG_MAC_VLAN_HANDLER(fm10k_mbx_mac_addr),
FM10K_VF_MSG_LPORT_STATE_HANDLER(fm10k_msg_lport_state_vf),
- FM10K_VF_MSG_1588_HANDLER(fm10k_1588_msg_vf),
FM10K_TLV_MSG_ERROR_HANDLER(fm10k_mbx_error),
};
return 0;
}
-static s32 fm10k_1588_msg_pf(struct fm10k_hw *hw, u32 **results,
- struct fm10k_mbx_info __always_unused *mbx)
-{
- struct fm10k_swapi_1588_timestamp timestamp;
- struct fm10k_iov_data *iov_data;
- struct fm10k_intfc *interface;
- u16 sglort, vf_idx;
- s32 err;
-
- err = fm10k_tlv_attr_get_le_struct(
- results[FM10K_PF_ATTR_ID_1588_TIMESTAMP],
- ×tamp, sizeof(timestamp));
- if (err)
- return err;
-
- interface = container_of(hw, struct fm10k_intfc, hw);
-
- if (timestamp.dglort) {
- fm10k_ts_tx_hwtstamp(interface, timestamp.dglort,
- le64_to_cpu(timestamp.egress));
- return 0;
- }
-
- /* either dglort or sglort must be set */
- if (!timestamp.sglort)
- return FM10K_ERR_PARAM;
-
- /* verify GLORT is at least one of the ones we own */
- sglort = le16_to_cpu(timestamp.sglort);
- if (!fm10k_glort_valid_pf(hw, sglort))
- return FM10K_ERR_PARAM;
-
- if (sglort == interface->glort) {
- fm10k_ts_tx_hwtstamp(interface, 0,
- le64_to_cpu(timestamp.ingress));
- return 0;
- }
-
- /* if there is no iov_data then there is no mailbox to process */
- if (!ACCESS_ONCE(interface->iov_data))
- return FM10K_ERR_PARAM;
-
- rcu_read_lock();
-
- /* notify VF if this timestamp belongs to it */
- iov_data = interface->iov_data;
- vf_idx = (hw->mac.dglort_map & FM10K_DGLORTMAP_NONE) - sglort;
-
- if (!iov_data || vf_idx >= iov_data->num_vfs) {
- err = FM10K_ERR_PARAM;
- goto err_unlock;
- }
-
- err = hw->iov.ops.report_timestamp(hw, &iov_data->vf_info[vf_idx],
- le64_to_cpu(timestamp.ingress));
-
-err_unlock:
- rcu_read_unlock();
-
- return err;
-}
-
static const struct fm10k_msg_data pf_mbx_data[] = {
FM10K_PF_MSG_ERR_HANDLER(XCAST_MODES, fm10k_msg_err_pf),
FM10K_PF_MSG_ERR_HANDLER(UPDATE_MAC_FWD_RULE, fm10k_msg_err_pf),
FM10K_PF_MSG_ERR_HANDLER(LPORT_CREATE, fm10k_msg_err_pf),
FM10K_PF_MSG_ERR_HANDLER(LPORT_DELETE, fm10k_msg_err_pf),
FM10K_PF_MSG_UPDATE_PVID_HANDLER(fm10k_update_pvid),
- FM10K_PF_MSG_1588_TIMESTAMP_HANDLER(fm10k_1588_msg_pf),
FM10K_TLV_MSG_ERROR_HANDLER(fm10k_mbx_error),
};
return -EIO;
}
- /* assign BAR 4 resources for use with PTP */
- if (fm10k_read_reg(hw, FM10K_CTRL) & FM10K_CTRL_BAR4_ALLOWED)
- interface->sw_addr = ioremap(pci_resource_start(pdev, 4),
- pci_resource_len(pdev, 4));
- hw->sw_addr = interface->sw_addr;
-
/* initialize DCBNL interface */
fm10k_dcbnl_set_ops(netdev);
- /* Intitialize timestamp data */
- fm10k_ts_init(interface);
-
/* set default ring sizes */
interface->tx_ring_count = FM10K_DEFAULT_TXD;
interface->rx_ring_count = FM10K_DEFAULT_RXD;
/* kick off service timer now, even when interface is down */
mod_timer(&interface->service_timer, (HZ * 2) + jiffies);
- /* Register PTP interface */
- fm10k_ptp_register(interface);
-
/* print warning for non-optimal configurations */
fm10k_slot_warn(interface);
if (netdev->reg_state == NETREG_REGISTERED)
unregister_netdev(netdev);
- /* cleanup timestamp handling */
- fm10k_ptp_unregister(interface);
-
/* release VFs */
fm10k_iov_disable(pdev);
/* reset statistics starting values */
hw->mac.ops.rebind_hw_stats(hw, &interface->stats);
- /* reset clock */
- fm10k_ts_reset(interface);
-
rtnl_lock();
err = fm10k_init_queueing_scheme(interface);
/* reassociate interrupts */
fm10k_mbx_request_irq(interface);
- /* reset clock */
- fm10k_ts_reset(interface);
-
if (netif_running(netdev))
err = fm10k_open(netdev);
/* Intel Ethernet Switch Host Interface Driver
- * Copyright(c) 2013 - 2015 Intel Corporation.
+ * Copyright(c) 2013 - 2016 Intel Corporation.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
fm10k_update_hw_stats_q(hw, q, idx, qpp);
}
-static s32 fm10k_iov_report_timestamp_pf(struct fm10k_hw *hw,
- struct fm10k_vf_info *vf_info,
- u64 timestamp)
-{
- u32 msg[4];
-
- /* generate port state response to notify VF it is not ready */
- fm10k_tlv_msg_init(msg, FM10K_VF_MSG_ID_1588);
- fm10k_tlv_attr_put_u64(msg, FM10K_1588_MSG_TIMESTAMP, timestamp);
-
- return vf_info->mbx.ops.enqueue_tx(hw, &vf_info->mbx, msg);
-}
-
/**
* fm10k_iov_msg_msix_pf - Message handler for MSI-X request from VF
* @hw: Pointer to hardware structure
return 0;
}
-const struct fm10k_tlv_attr fm10k_1588_timestamp_msg_attr[] = {
- FM10K_TLV_ATTR_LE_STRUCT(FM10K_PF_ATTR_ID_1588_TIMESTAMP,
- sizeof(struct fm10k_swapi_1588_timestamp)),
- FM10K_TLV_ATTR_LAST
-};
-
-/* currently there is no shared 1588 timestamp handler */
-
-/**
- * fm10k_adjust_systime_pf - Adjust systime frequency
- * @hw: pointer to hardware structure
- * @ppb: adjustment rate in parts per billion
- *
- * This function will adjust the SYSTIME_CFG register contained in BAR 4
- * if this function is supported for BAR 4 access. The adjustment amount
- * is based on the parts per billion value provided and adjusted to a
- * value based on parts per 2^48 clock cycles.
- *
- * If adjustment is not supported or the requested value is too large
- * we will return an error.
- **/
-static s32 fm10k_adjust_systime_pf(struct fm10k_hw *hw, s32 ppb)
-{
- u64 systime_adjust;
-
- /* if sw_addr is not set we don't have switch register access */
- if (!hw->sw_addr)
- return ppb ? FM10K_ERR_PARAM : 0;
-
- /* we must convert the value from parts per billion to parts per
- * 2^48 cycles. In addition I have opted to only use the 30 most
- * significant bits of the adjustment value as the 8 least
- * significant bits are located in another register and represent
- * a value significantly less than a part per billion, the result
- * of dropping the 8 least significant bits is that the adjustment
- * value is effectively multiplied by 2^8 when we write it.
- *
- * As a result of all this the math for this breaks down as follows:
- * ppb / 10^9 == adjust * 2^8 / 2^48
- * If we solve this for adjust, and simplify it comes out as:
- * ppb * 2^31 / 5^9 == adjust
- */
- systime_adjust = (ppb < 0) ? -ppb : ppb;
- systime_adjust <<= 31;
- do_div(systime_adjust, 1953125);
-
- /* verify the requested adjustment value is in range */
- if (systime_adjust > FM10K_SW_SYSTIME_ADJUST_MASK)
- return FM10K_ERR_PARAM;
-
- if (ppb > 0)
- systime_adjust |= FM10K_SW_SYSTIME_ADJUST_DIR_POSITIVE;
-
- fm10k_write_sw_reg(hw, FM10K_SW_SYSTIME_ADJUST, (u32)systime_adjust);
-
- return 0;
-}
-
-/**
- * fm10k_read_systime_pf - Reads value of systime registers
- * @hw: pointer to the hardware structure
- *
- * Function reads the content of 2 registers, combined to represent a 64 bit
- * value measured in nanosecods. In order to guarantee the value is accurate
- * we check the 32 most significant bits both before and after reading the
- * 32 least significant bits to verify they didn't change as we were reading
- * the registers.
- **/
-static u64 fm10k_read_systime_pf(struct fm10k_hw *hw)
-{
- u32 systime_l, systime_h, systime_tmp;
-
- systime_h = fm10k_read_reg(hw, FM10K_SYSTIME + 1);
-
- do {
- systime_tmp = systime_h;
- systime_l = fm10k_read_reg(hw, FM10K_SYSTIME);
- systime_h = fm10k_read_reg(hw, FM10K_SYSTIME + 1);
- } while (systime_tmp != systime_h);
-
- return ((u64)systime_h << 32) | systime_l;
-}
-
static const struct fm10k_msg_data fm10k_msg_data_pf[] = {
FM10K_PF_MSG_ERR_HANDLER(XCAST_MODES, fm10k_msg_err_pf),
FM10K_PF_MSG_ERR_HANDLER(UPDATE_MAC_FWD_RULE, fm10k_msg_err_pf),
.set_dma_mask = fm10k_set_dma_mask_pf,
.get_fault = fm10k_get_fault_pf,
.get_host_state = fm10k_get_host_state_pf,
- .adjust_systime = fm10k_adjust_systime_pf,
- .read_systime = fm10k_read_systime_pf,
};
static const struct fm10k_iov_ops iov_ops_pf = {
.set_lport = fm10k_iov_set_lport_pf,
.reset_lport = fm10k_iov_reset_lport_pf,
.update_stats = fm10k_iov_update_stats_pf,
- .report_timestamp = fm10k_iov_report_timestamp_pf,
};
static s32 fm10k_get_invariants_pf(struct fm10k_hw *hw)
/* Intel Ethernet Switch Host Interface Driver
- * Copyright(c) 2013 - 2015 Intel Corporation.
+ * Copyright(c) 2013 - 2016 Intel Corporation.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
FM10K_PF_MSG_ID_UPDATE_FLOW = 0x503,
FM10K_PF_MSG_ID_DELETE_FLOW = 0x504,
FM10K_PF_MSG_ID_SET_FLOW_STATE = 0x505,
- FM10K_PF_MSG_ID_GET_1588_INFO = 0x506,
- FM10K_PF_MSG_ID_1588_TIMESTAMP = 0x701,
};
enum fm10k_pf_tlv_attr_id_v1 {
FM10K_PF_ATTR_ID_DELETE_FLOW = 0x0B,
FM10K_PF_ATTR_ID_PORT = 0x0C,
FM10K_PF_ATTR_ID_UPDATE_PVID = 0x0D,
- FM10K_PF_ATTR_ID_1588_TIMESTAMP = 0x10,
};
#define FM10K_MSG_LPORT_MAP_GLORT_SHIFT 0
struct fm10k_global_table_data ffu;
} __aligned(4) __packed;
-struct fm10k_swapi_1588_timestamp {
- __le64 egress;
- __le64 ingress;
- __le16 dglort;
- __le16 sglort;
-} __aligned(4) __packed;
-
s32 fm10k_msg_lport_map_pf(struct fm10k_hw *, u32 **, struct fm10k_mbx_info *);
extern const struct fm10k_tlv_attr fm10k_lport_map_msg_attr[];
#define FM10K_PF_MSG_LPORT_MAP_HANDLER(func) \
#define FM10K_PF_MSG_ERR_HANDLER(msg, func) \
FM10K_MSG_HANDLER(FM10K_PF_MSG_ID_##msg, fm10k_err_msg_attr, func)
-extern const struct fm10k_tlv_attr fm10k_1588_timestamp_msg_attr[];
-#define FM10K_PF_MSG_1588_TIMESTAMP_HANDLER(func) \
- FM10K_MSG_HANDLER(FM10K_PF_MSG_ID_1588_TIMESTAMP, \
- fm10k_1588_timestamp_msg_attr, func)
-
s32 fm10k_iov_msg_msix_pf(struct fm10k_hw *, u32 **, struct fm10k_mbx_info *);
s32 fm10k_iov_msg_mac_vlan_pf(struct fm10k_hw *, u32 **,
struct fm10k_mbx_info *);
+++ /dev/null
-/* Intel Ethernet Switch Host Interface Driver
- * Copyright(c) 2013 - 2015 Intel Corporation.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * This program is distributed in the hope it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
- * more details.
- *
- * The full GNU General Public License is included in this distribution in
- * the file called "COPYING".
- *
- * Contact Information:
- * e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
- * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
- */
-
-#include <linux/ptp_classify.h>
-#include <linux/ptp_clock_kernel.h>
-
-#include "fm10k.h"
-
-#define FM10K_TS_TX_TIMEOUT (HZ * 15)
-
-void fm10k_systime_to_hwtstamp(struct fm10k_intfc *interface,
- struct skb_shared_hwtstamps *hwtstamp,
- u64 systime)
-{
- unsigned long flags;
-
- read_lock_irqsave(&interface->systime_lock, flags);
- systime += interface->ptp_adjust;
- read_unlock_irqrestore(&interface->systime_lock, flags);
-
- hwtstamp->hwtstamp = ns_to_ktime(systime);
-}
-
-static struct sk_buff *fm10k_ts_tx_skb(struct fm10k_intfc *interface,
- __le16 dglort)
-{
- struct sk_buff_head *list = &interface->ts_tx_skb_queue;
- struct sk_buff *skb;
-
- skb_queue_walk(list, skb) {
- if (FM10K_CB(skb)->fi.w.dglort == dglort)
- return skb;
- }
-
- return NULL;
-}
-
-void fm10k_ts_tx_enqueue(struct fm10k_intfc *interface, struct sk_buff *skb)
-{
- struct sk_buff_head *list = &interface->ts_tx_skb_queue;
- struct sk_buff *clone;
- unsigned long flags;
-
- /* create clone for us to return on the Tx path */
- clone = skb_clone_sk(skb);
- if (!clone)
- return;
-
- FM10K_CB(clone)->ts_tx_timeout = jiffies + FM10K_TS_TX_TIMEOUT;
- spin_lock_irqsave(&list->lock, flags);
-
- /* attempt to locate any buffers with the same dglort,
- * if none are present then insert skb in tail of list
- */
- skb = fm10k_ts_tx_skb(interface, FM10K_CB(clone)->fi.w.dglort);
- if (!skb) {
- skb_shinfo(clone)->tx_flags |= SKBTX_IN_PROGRESS;
- __skb_queue_tail(list, clone);
- }
-
- spin_unlock_irqrestore(&list->lock, flags);
-
- /* if list is already has one then we just free the clone */
- if (skb)
- dev_kfree_skb(clone);
-}
-
-void fm10k_ts_tx_hwtstamp(struct fm10k_intfc *interface, __le16 dglort,
- u64 systime)
-{
- struct skb_shared_hwtstamps shhwtstamps;
- struct sk_buff_head *list = &interface->ts_tx_skb_queue;
- struct sk_buff *skb;
- unsigned long flags;
-
- spin_lock_irqsave(&list->lock, flags);
-
- /* attempt to locate and pull the sk_buff out of the list */
- skb = fm10k_ts_tx_skb(interface, dglort);
- if (skb)
- __skb_unlink(skb, list);
-
- spin_unlock_irqrestore(&list->lock, flags);
-
- /* if not found do nothing */
- if (!skb)
- return;
-
- /* timestamp the sk_buff and free out copy */
- fm10k_systime_to_hwtstamp(interface, &shhwtstamps, systime);
- skb_tstamp_tx(skb, &shhwtstamps);
- dev_kfree_skb_any(skb);
-}
-
-void fm10k_ts_tx_subtask(struct fm10k_intfc *interface)
-{
- struct sk_buff_head *list = &interface->ts_tx_skb_queue;
- struct sk_buff *skb, *tmp;
- unsigned long flags;
-
- /* If we're down or resetting, just bail */
- if (test_bit(__FM10K_DOWN, &interface->state) ||
- test_bit(__FM10K_RESETTING, &interface->state))
- return;
-
- spin_lock_irqsave(&list->lock, flags);
-
- /* walk though the list and flush any expired timestamp packets */
- skb_queue_walk_safe(list, skb, tmp) {
- if (!time_is_after_jiffies(FM10K_CB(skb)->ts_tx_timeout))
- continue;
- __skb_unlink(skb, list);
- kfree_skb(skb);
- interface->tx_hwtstamp_timeouts++;
- }
-
- spin_unlock_irqrestore(&list->lock, flags);
-}
-
-static u64 fm10k_systime_read(struct fm10k_intfc *interface)
-{
- struct fm10k_hw *hw = &interface->hw;
-
- return hw->mac.ops.read_systime(hw);
-}
-
-void fm10k_ts_reset(struct fm10k_intfc *interface)
-{
- s64 ns = ktime_to_ns(ktime_get_real());
- unsigned long flags;
-
- /* reinitialize the clock */
- write_lock_irqsave(&interface->systime_lock, flags);
- interface->ptp_adjust = fm10k_systime_read(interface) - ns;
- write_unlock_irqrestore(&interface->systime_lock, flags);
-}
-
-void fm10k_ts_init(struct fm10k_intfc *interface)
-{
- /* Initialize lock protecting systime access */
- rwlock_init(&interface->systime_lock);
-
- /* Initialize skb queue for pending timestamp requests */
- skb_queue_head_init(&interface->ts_tx_skb_queue);
-
- /* reset the clock to current kernel time */
- fm10k_ts_reset(interface);
-}
-
-/**
- * fm10k_get_ts_config - get current hardware timestamping configuration
- * @netdev: network interface device structure
- * @ifreq: ioctl data
- *
- * This function returns the current timestamping settings. Rather than
- * attempt to deconstruct registers to fill in the values, simply keep a copy
- * of the old settings around, and return a copy when requested.
- */
-int fm10k_get_ts_config(struct net_device *netdev, struct ifreq *ifr)
-{
- struct fm10k_intfc *interface = netdev_priv(netdev);
- struct hwtstamp_config *config = &interface->ts_config;
-
- return copy_to_user(ifr->ifr_data, config, sizeof(*config)) ?
- -EFAULT : 0;
-}
-
-/**
- * fm10k_set_ts_config - control hardware time stamping
- * @netdev: network interface device structure
- * @ifreq: ioctl data
- *
- * Outgoing time stamping can be enabled and disabled. Play nice and
- * disable it when requested, although it shouldn't cause any overhead
- * when no packet needs it. At most one packet in the queue may be
- * marked for time stamping, otherwise it would be impossible to tell
- * for sure to which packet the hardware time stamp belongs.
- *
- * Incoming time stamping has to be configured via the hardware
- * filters. Not all combinations are supported, in particular event
- * type has to be specified. Matching the kind of event packet is
- * not supported, with the exception of "all V2 events regardless of
- * level 2 or 4".
- *
- * Since hardware always timestamps Path delay packets when timestamping V2
- * packets, regardless of the type specified in the register, only use V2
- * Event mode. This more accurately tells the user what the hardware is going
- * to do anyways.
- */
-int fm10k_set_ts_config(struct net_device *netdev, struct ifreq *ifr)
-{
- struct fm10k_intfc *interface = netdev_priv(netdev);
- struct hwtstamp_config ts_config;
-
- if (copy_from_user(&ts_config, ifr->ifr_data, sizeof(ts_config)))
- return -EFAULT;
-
- /* reserved for future extensions */
- if (ts_config.flags)
- return -EINVAL;
-
- switch (ts_config.tx_type) {
- case HWTSTAMP_TX_OFF:
- break;
- case HWTSTAMP_TX_ON:
- /* we likely need some check here to see if this is supported */
- break;
- default:
- return -ERANGE;
- }
-
- switch (ts_config.rx_filter) {
- case HWTSTAMP_FILTER_NONE:
- interface->flags &= ~FM10K_FLAG_RX_TS_ENABLED;
- break;
- case HWTSTAMP_FILTER_PTP_V1_L4_EVENT:
- case HWTSTAMP_FILTER_PTP_V1_L4_SYNC:
- case HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ:
- case HWTSTAMP_FILTER_PTP_V2_L4_EVENT:
- case HWTSTAMP_FILTER_PTP_V2_L4_SYNC:
- case HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ:
- case HWTSTAMP_FILTER_PTP_V2_L2_EVENT:
- case HWTSTAMP_FILTER_PTP_V2_L2_SYNC:
- case HWTSTAMP_FILTER_PTP_V2_L2_DELAY_REQ:
- case HWTSTAMP_FILTER_PTP_V2_EVENT:
- case HWTSTAMP_FILTER_PTP_V2_SYNC:
- case HWTSTAMP_FILTER_PTP_V2_DELAY_REQ:
- case HWTSTAMP_FILTER_ALL:
- interface->flags |= FM10K_FLAG_RX_TS_ENABLED;
- ts_config.rx_filter = HWTSTAMP_FILTER_ALL;
- break;
- default:
- return -ERANGE;
- }
-
- /* save these settings for future reference */
- interface->ts_config = ts_config;
-
- return copy_to_user(ifr->ifr_data, &ts_config, sizeof(ts_config)) ?
- -EFAULT : 0;
-}
-
-static int fm10k_ptp_adjfreq(struct ptp_clock_info *ptp, s32 ppb)
-{
- struct fm10k_intfc *interface;
- struct fm10k_hw *hw;
- int err;
-
- interface = container_of(ptp, struct fm10k_intfc, ptp_caps);
- hw = &interface->hw;
-
- err = hw->mac.ops.adjust_systime(hw, ppb);
-
- /* the only error we should see is if the value is out of range */
- return (err == FM10K_ERR_PARAM) ? -ERANGE : err;
-}
-
-static int fm10k_ptp_adjtime(struct ptp_clock_info *ptp, s64 delta)
-{
- struct fm10k_intfc *interface;
- unsigned long flags;
-
- interface = container_of(ptp, struct fm10k_intfc, ptp_caps);
-
- write_lock_irqsave(&interface->systime_lock, flags);
- interface->ptp_adjust += delta;
- write_unlock_irqrestore(&interface->systime_lock, flags);
-
- return 0;
-}
-
-static int fm10k_ptp_gettime(struct ptp_clock_info *ptp, struct timespec64 *ts)
-{
- struct fm10k_intfc *interface;
- unsigned long flags;
- u64 now;
-
- interface = container_of(ptp, struct fm10k_intfc, ptp_caps);
-
- read_lock_irqsave(&interface->systime_lock, flags);
- now = fm10k_systime_read(interface) + interface->ptp_adjust;
- read_unlock_irqrestore(&interface->systime_lock, flags);
-
- *ts = ns_to_timespec64(now);
-
- return 0;
-}
-
-static int fm10k_ptp_settime(struct ptp_clock_info *ptp,
- const struct timespec64 *ts)
-{
- struct fm10k_intfc *interface;
- unsigned long flags;
- u64 ns = timespec64_to_ns(ts);
-
- interface = container_of(ptp, struct fm10k_intfc, ptp_caps);
-
- write_lock_irqsave(&interface->systime_lock, flags);
- interface->ptp_adjust = fm10k_systime_read(interface) - ns;
- write_unlock_irqrestore(&interface->systime_lock, flags);
-
- return 0;
-}
-
-static int fm10k_ptp_enable(struct ptp_clock_info *ptp,
- struct ptp_clock_request *rq,
- int __always_unused on)
-{
- struct ptp_clock_time *t = &rq->perout.period;
- struct fm10k_intfc *interface;
- struct fm10k_hw *hw;
- u64 period;
- u32 step;
-
- /* we can only support periodic output */
- if (rq->type != PTP_CLK_REQ_PEROUT)
- return -EINVAL;
-
- /* verify the requested channel is there */
- if (rq->perout.index >= ptp->n_per_out)
- return -EINVAL;
-
- /* we cannot enforce start time as there is no
- * mechanism for that in the hardware, we can only control
- * the period.
- */
-
- /* we cannot support periods greater than 4 seconds due to reg limit */
- if (t->sec > 4 || t->sec < 0)
- return -ERANGE;
-
- interface = container_of(ptp, struct fm10k_intfc, ptp_caps);
- hw = &interface->hw;
-
- /* we simply cannot support the operation if we don't have BAR4 */
- if (!hw->sw_addr)
- return -ENOTSUPP;
-
- /* convert to unsigned 64b ns, verify we can put it in a 32b register */
- period = t->sec * 1000000000LL + t->nsec;
-
- /* determine the minimum size for period */
- step = 2 * (fm10k_read_reg(hw, FM10K_SYSTIME_CFG) &
- FM10K_SYSTIME_CFG_STEP_MASK);
-
- /* verify the value is in range supported by hardware */
- if ((period && (period < step)) || (period > U32_MAX))
- return -ERANGE;
-
- /* notify hardware of request to being sending pulses */
- fm10k_write_sw_reg(hw, FM10K_SW_SYSTIME_PULSE(rq->perout.index),
- (u32)period);
-
- return 0;
-}
-
-static struct ptp_pin_desc fm10k_ptp_pd[2] = {
- {
- .name = "IEEE1588_PULSE0",
- .index = 0,
- .func = PTP_PF_PEROUT,
- .chan = 0
- },
- {
- .name = "IEEE1588_PULSE1",
- .index = 1,
- .func = PTP_PF_PEROUT,
- .chan = 1
- }
-};
-
-static int fm10k_ptp_verify(struct ptp_clock_info *ptp, unsigned int pin,
- enum ptp_pin_function func, unsigned int chan)
-{
- /* verify the requested pin is there */
- if (pin >= ptp->n_pins || !ptp->pin_config)
- return -EINVAL;
-
- /* enforce locked channels, no changing them */
- if (chan != ptp->pin_config[pin].chan)
- return -EINVAL;
-
- /* we want to keep the functions locked as well */
- if (func != ptp->pin_config[pin].func)
- return -EINVAL;
-
- return 0;
-}
-
-void fm10k_ptp_register(struct fm10k_intfc *interface)
-{
- struct ptp_clock_info *ptp_caps = &interface->ptp_caps;
- struct device *dev = &interface->pdev->dev;
- struct ptp_clock *ptp_clock;
-
- snprintf(ptp_caps->name, sizeof(ptp_caps->name),
- "%s", interface->netdev->name);
- ptp_caps->owner = THIS_MODULE;
- /* This math is simply the inverse of the math in
- * fm10k_adjust_systime_pf applied to an adjustment value
- * of 2^30 - 1 which is the maximum value of the register:
- * max_ppb == ((2^30 - 1) * 5^9) / 2^31
- */
- ptp_caps->max_adj = 976562;
- ptp_caps->adjfreq = fm10k_ptp_adjfreq;
- ptp_caps->adjtime = fm10k_ptp_adjtime;
- ptp_caps->gettime64 = fm10k_ptp_gettime;
- ptp_caps->settime64 = fm10k_ptp_settime;
-
- /* provide pins if BAR4 is accessible */
- if (interface->sw_addr) {
- /* enable periodic outputs */
- ptp_caps->n_per_out = 2;
- ptp_caps->enable = fm10k_ptp_enable;
-
- /* enable clock pins */
- ptp_caps->verify = fm10k_ptp_verify;
- ptp_caps->n_pins = 2;
- ptp_caps->pin_config = fm10k_ptp_pd;
- }
-
- ptp_clock = ptp_clock_register(ptp_caps, dev);
- if (IS_ERR(ptp_clock)) {
- ptp_clock = NULL;
- dev_err(dev, "ptp_clock_register failed\n");
- } else {
- dev_info(dev, "registered PHC device %s\n", ptp_caps->name);
- }
-
- interface->ptp_clock = ptp_clock;
-}
-
-void fm10k_ptp_unregister(struct fm10k_intfc *interface)
-{
- struct ptp_clock *ptp_clock = interface->ptp_clock;
- struct device *dev = &interface->pdev->dev;
-
- if (!ptp_clock)
- return;
-
- interface->ptp_clock = NULL;
-
- ptp_clock_unregister(ptp_clock);
- dev_info(dev, "removed PHC %s\n", interface->ptp_caps.name);
-}
/* Intel Ethernet Switch Host Interface Driver
- * Copyright(c) 2013 - 2015 Intel Corporation.
+ * Copyright(c) 2013 - 2016 Intel Corporation.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
#define FM10K_STATS_LOOPBACK_DROP 0x3806
#define FM10K_STATS_NODESC_DROP 0x3807
-/* Timesync registers */
-#define FM10K_SYSTIME 0x3814
-#define FM10K_SYSTIME_CFG 0x3818
-#define FM10K_SYSTIME_CFG_STEP_MASK 0x0000000F
-
/* PCIe state registers */
#define FM10K_PHYADDR 0x381C
#define FM10K_VFSYSTIME 0x00040
#define FM10K_VFITR(_n) ((_n) + 0x00060)
-/* Registers contained in BAR 4 for Switch management */
-#define FM10K_SW_SYSTIME_ADJUST 0x0224D
-#define FM10K_SW_SYSTIME_ADJUST_MASK 0x3FFFFFFF
-#define FM10K_SW_SYSTIME_ADJUST_DIR_POSITIVE 0x80000000
-#define FM10K_SW_SYSTIME_PULSE(_n) ((_n) + 0x02252)
-
enum fm10k_int_source {
fm10k_int_mailbox = 0,
fm10k_int_pcie_fault = 1,
struct fm10k_dglort_cfg *);
void (*set_dma_mask)(struct fm10k_hw *, u64);
s32 (*get_fault)(struct fm10k_hw *, int, struct fm10k_fault *);
- s32 (*adjust_systime)(struct fm10k_hw *, s32 ppb);
- u64 (*read_systime)(struct fm10k_hw *);
};
enum fm10k_mac_type {
s32 (*set_lport)(struct fm10k_hw *, struct fm10k_vf_info *, u16, u8);
void (*reset_lport)(struct fm10k_hw *, struct fm10k_vf_info *);
void (*update_stats)(struct fm10k_hw *, struct fm10k_hw_stats_q *, u16);
- s32 (*report_timestamp)(struct fm10k_hw *, struct fm10k_vf_info *, u64);
};
struct fm10k_iov_info {
struct fm10k_hw {
u32 __iomem *hw_addr;
- u32 __iomem *sw_addr;
void *back;
struct fm10k_mac_info mac;
struct fm10k_bus_info bus;
/* Intel Ethernet Switch Host Interface Driver
- * Copyright(c) 2013 - 2015 Intel Corporation.
+ * Copyright(c) 2013 - 2016 Intel Corporation.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
return mbx->ops.enqueue_tx(hw, mbx, msg);
}
-const struct fm10k_tlv_attr fm10k_1588_msg_attr[] = {
- FM10K_TLV_ATTR_U64(FM10K_1588_MSG_TIMESTAMP),
- FM10K_TLV_ATTR_LAST
-};
-
-/* currently there is no shared 1588 timestamp handler */
-
/**
* fm10k_update_hw_stats_vf - Updates hardware related statistics of VF
* @hw: pointer to hardware structure
return 0;
}
-/**
- * fm10k_adjust_systime_vf - Adjust systime frequency
- * @hw: pointer to hardware structure
- * @ppb: adjustment rate in parts per billion
- *
- * This function takes an adjustment rate in parts per billion and will
- * verify that this value is 0 as the VF cannot support adjusting the
- * systime clock.
- *
- * If the ppb value is non-zero the return is ERR_PARAM else success
- **/
-static s32 fm10k_adjust_systime_vf(struct fm10k_hw *hw, s32 ppb)
-{
- /* The VF cannot adjust the clock frequency, however it should
- * already have a syntonic clock with whichever host interface is
- * running as the master for the host interface clock domain so
- * there should be not frequency adjustment necessary.
- */
- return ppb ? FM10K_ERR_PARAM : 0;
-}
-
-/**
- * fm10k_read_systime_vf - Reads value of systime registers
- * @hw: pointer to the hardware structure
- *
- * Function reads the content of 2 registers, combined to represent a 64 bit
- * value measured in nanoseconds. In order to guarantee the value is accurate
- * we check the 32 most significant bits both before and after reading the
- * 32 least significant bits to verify they didn't change as we were reading
- * the registers.
- **/
-static u64 fm10k_read_systime_vf(struct fm10k_hw *hw)
-{
- u32 systime_l, systime_h, systime_tmp;
-
- systime_h = fm10k_read_reg(hw, FM10K_VFSYSTIME + 1);
-
- do {
- systime_tmp = systime_h;
- systime_l = fm10k_read_reg(hw, FM10K_VFSYSTIME);
- systime_h = fm10k_read_reg(hw, FM10K_VFSYSTIME + 1);
- } while (systime_tmp != systime_h);
-
- return ((u64)systime_h << 32) | systime_l;
-}
-
static const struct fm10k_msg_data fm10k_msg_data_vf[] = {
FM10K_TLV_MSG_TEST_HANDLER(fm10k_tlv_msg_test),
FM10K_VF_MSG_MAC_VLAN_HANDLER(fm10k_msg_mac_vlan_vf),
.rebind_hw_stats = fm10k_rebind_hw_stats_vf,
.configure_dglort_map = fm10k_configure_dglort_map_vf,
.get_host_state = fm10k_get_host_state_generic,
- .adjust_systime = fm10k_adjust_systime_vf,
- .read_systime = fm10k_read_systime_vf,
};
static s32 fm10k_get_invariants_vf(struct fm10k_hw *hw)
/* Intel Ethernet Switch Host Interface Driver
- * Copyright(c) 2013 - 2014 Intel Corporation.
+ * Copyright(c) 2013 - 2016 Intel Corporation.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
FM10K_VF_MSG_ID_MSIX,
FM10K_VF_MSG_ID_MAC_VLAN,
FM10K_VF_MSG_ID_LPORT_STATE,
- FM10K_VF_MSG_ID_1588,
FM10K_VF_MSG_ID_MAX,
};
FM10K_LPORT_STATE_MSG_MAX
};
-enum fm10k_tlv_1588_attr_id {
- FM10K_1588_MSG_TIMESTAMP,
- FM10K_1588_MSG_MAX
-};
-
#define FM10K_VF_MSG_MSIX_HANDLER(func) \
FM10K_MSG_HANDLER(FM10K_VF_MSG_ID_MSIX, NULL, func)
FM10K_MSG_HANDLER(FM10K_VF_MSG_ID_LPORT_STATE, \
fm10k_lport_state_msg_attr, func)
-extern const struct fm10k_tlv_attr fm10k_1588_msg_attr[];
-#define FM10K_VF_MSG_1588_HANDLER(func) \
- FM10K_MSG_HANDLER(FM10K_VF_MSG_ID_1588, fm10k_1588_msg_attr, func)
-
extern const struct fm10k_info fm10k_vf_info;
#endif /* _FM10K_VF_H */
projects / platform / kernel / linux-rpi.git / commitdiff