From: Pablo de Lara Date: Fri, 13 Nov 2015 16:09:11 +0000 (+0000) Subject: i40e: support ieee1588 functions for device time X-Git-Tag: spdx-start~8058 X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=f3a4e40eca0c;p=dpdk.git i40e: support ieee1588 functions for device time Add additional functions to support the existing IEEE1588 functionality and to enable getting, setting and adjusting the device time. Signed-off-by: Pablo de Lara Signed-off-by: Daniel Mrzyglod Reviewed-by: John McNamara --- diff --git a/drivers/net/i40e/i40e_ethdev.c b/drivers/net/i40e/i40e_ethdev.c index 6fc4f88055..2c51a0b8f1 100644 --- a/drivers/net/i40e/i40e_ethdev.c +++ b/drivers/net/i40e/i40e_ethdev.c @@ -125,11 +125,13 @@ (1UL << RTE_ETH_FLOW_NONFRAG_IPV6_OTHER) | \ (1UL << RTE_ETH_FLOW_L2_PAYLOAD)) -#define I40E_PTP_40GB_INCVAL 0x0199999999ULL -#define I40E_PTP_10GB_INCVAL 0x0333333333ULL -#define I40E_PTP_1GB_INCVAL 0x2000000000ULL -#define I40E_PRTTSYN_TSYNENA 0x80000000 -#define I40E_PRTTSYN_TSYNTYPE 0x0e000000 +/* Additional timesync values. */ +#define I40E_PTP_40GB_INCVAL 0x0199999999ULL +#define I40E_PTP_10GB_INCVAL 0x0333333333ULL +#define I40E_PTP_1GB_INCVAL 0x2000000000ULL +#define I40E_PRTTSYN_TSYNENA 0x80000000 +#define I40E_PRTTSYN_TSYNTYPE 0x0e000000 +#define I40E_CYCLECOUNTER_MASK 0xffffffffffffffff #define I40E_MAX_PERCENT 100 #define I40E_DEFAULT_DCB_APP_NUM 1 @@ -399,11 +401,20 @@ static int i40e_timesync_read_rx_timestamp(struct rte_eth_dev *dev, static int i40e_timesync_read_tx_timestamp(struct rte_eth_dev *dev, struct timespec *timestamp); static void i40e_read_stats_registers(struct i40e_pf *pf, struct i40e_hw *hw); + +static int i40e_timesync_adjust_time(struct rte_eth_dev *dev, int64_t delta); + +static int i40e_timesync_read_time(struct rte_eth_dev *dev, + struct timespec *timestamp); +static int i40e_timesync_write_time(struct rte_eth_dev *dev, + const struct timespec *timestamp); + static int i40e_dev_rx_queue_intr_enable(struct rte_eth_dev *dev, uint16_t queue_id); static int i40e_dev_rx_queue_intr_disable(struct rte_eth_dev *dev, uint16_t queue_id); + static const struct rte_pci_id pci_id_i40e_map[] = { #define RTE_PCI_DEV_ID_DECL_I40E(vend, dev) {RTE_PCI_DEVICE(vend, dev)}, #include "rte_pci_dev_ids.h" @@ -468,6 +479,9 @@ static const struct eth_dev_ops i40e_eth_dev_ops = { .timesync_read_rx_timestamp = i40e_timesync_read_rx_timestamp, .timesync_read_tx_timestamp = i40e_timesync_read_tx_timestamp, .get_dcb_info = i40e_dev_get_dcb_info, + .timesync_adjust_time = i40e_timesync_adjust_time, + .timesync_read_time = i40e_timesync_read_time, + .timesync_write_time = i40e_timesync_write_time, }; /* store statistics names and its offset in stats structure */ @@ -7761,17 +7775,61 @@ i40e_mirror_rule_reset(struct rte_eth_dev *dev, uint8_t sw_id) return 0; } -static int -i40e_timesync_enable(struct rte_eth_dev *dev) +static uint64_t +i40e_read_systime_cyclecounter(struct rte_eth_dev *dev) { struct i40e_hw *hw = I40E_DEV_PRIVATE_TO_HW(dev->data->dev_private); - struct rte_eth_link *link = &dev->data->dev_link; - uint32_t tsync_ctl_l; - uint32_t tsync_ctl_h; + uint64_t systim_cycles; + + systim_cycles = (uint64_t)I40E_READ_REG(hw, I40E_PRTTSYN_TIME_L); + systim_cycles |= (uint64_t)I40E_READ_REG(hw, I40E_PRTTSYN_TIME_H) + << 32; + + return systim_cycles; +} + +static uint64_t +i40e_read_rx_tstamp_cyclecounter(struct rte_eth_dev *dev, uint8_t index) +{ + struct i40e_hw *hw = I40E_DEV_PRIVATE_TO_HW(dev->data->dev_private); + uint64_t rx_tstamp; + + rx_tstamp = (uint64_t)I40E_READ_REG(hw, I40E_PRTTSYN_RXTIME_L(index)); + rx_tstamp |= (uint64_t)I40E_READ_REG(hw, I40E_PRTTSYN_RXTIME_H(index)) + << 32; + + return rx_tstamp; +} + +static uint64_t +i40e_read_tx_tstamp_cyclecounter(struct rte_eth_dev *dev) +{ + struct i40e_hw *hw = I40E_DEV_PRIVATE_TO_HW(dev->data->dev_private); + uint64_t tx_tstamp; + + tx_tstamp = (uint64_t)I40E_READ_REG(hw, I40E_PRTTSYN_TXTIME_L); + tx_tstamp |= (uint64_t)I40E_READ_REG(hw, I40E_PRTTSYN_TXTIME_H) + << 32; + + return tx_tstamp; +} + +static void +i40e_start_timecounters(struct rte_eth_dev *dev) +{ + struct i40e_hw *hw = I40E_DEV_PRIVATE_TO_HW(dev->data->dev_private); + struct i40e_adapter *adapter = + (struct i40e_adapter *)dev->data->dev_private; + struct rte_eth_link link; uint32_t tsync_inc_l; uint32_t tsync_inc_h; - switch (link->link_speed) { + /* Get current link speed. */ + memset(&link, 0, sizeof(link)); + i40e_dev_link_update(dev, 1); + rte_i40e_dev_atomic_read_link_status(dev, &link); + + switch (link.link_speed) { case ETH_LINK_SPEED_40G: tsync_inc_l = I40E_PTP_40GB_INCVAL & 0xFFFFFFFF; tsync_inc_h = I40E_PTP_40GB_INCVAL >> 32; @@ -7789,19 +7847,95 @@ i40e_timesync_enable(struct rte_eth_dev *dev) tsync_inc_h = 0x0; } - /* Clear timesync registers. */ - I40E_READ_REG(hw, I40E_PRTTSYN_STAT_0); - I40E_READ_REG(hw, I40E_PRTTSYN_TXTIME_H); - I40E_READ_REG(hw, I40E_PRTTSYN_RXTIME_L(0)); - I40E_READ_REG(hw, I40E_PRTTSYN_RXTIME_L(1)); - I40E_READ_REG(hw, I40E_PRTTSYN_RXTIME_L(2)); - I40E_READ_REG(hw, I40E_PRTTSYN_RXTIME_L(3)); - I40E_READ_REG(hw, I40E_PRTTSYN_TXTIME_H); - /* Set the timesync increment value. */ I40E_WRITE_REG(hw, I40E_PRTTSYN_INC_L, tsync_inc_l); I40E_WRITE_REG(hw, I40E_PRTTSYN_INC_H, tsync_inc_h); + memset(&adapter->systime_tc, 0, sizeof(struct rte_timecounter)); + memset(&adapter->rx_tstamp_tc, 0, sizeof(struct rte_timecounter)); + memset(&adapter->tx_tstamp_tc, 0, sizeof(struct rte_timecounter)); + + adapter->systime_tc.cc_mask = I40E_CYCLECOUNTER_MASK; + adapter->systime_tc.cc_shift = 0; + adapter->systime_tc.nsec_mask = 0; + + adapter->rx_tstamp_tc.cc_mask = I40E_CYCLECOUNTER_MASK; + adapter->rx_tstamp_tc.cc_shift = 0; + adapter->rx_tstamp_tc.nsec_mask = 0; + + adapter->tx_tstamp_tc.cc_mask = I40E_CYCLECOUNTER_MASK; + adapter->tx_tstamp_tc.cc_shift = 0; + adapter->tx_tstamp_tc.nsec_mask = 0; +} + +static int +i40e_timesync_adjust_time(struct rte_eth_dev *dev, int64_t delta) +{ + struct i40e_adapter *adapter = + (struct i40e_adapter *)dev->data->dev_private; + + adapter->systime_tc.nsec += delta; + adapter->rx_tstamp_tc.nsec += delta; + adapter->tx_tstamp_tc.nsec += delta; + + return 0; +} + +static int +i40e_timesync_write_time(struct rte_eth_dev *dev, const struct timespec *ts) +{ + uint64_t ns; + struct i40e_adapter *adapter = + (struct i40e_adapter *)dev->data->dev_private; + + ns = rte_timespec_to_ns(ts); + + /* Set the timecounters to a new value. */ + adapter->systime_tc.nsec = ns; + adapter->rx_tstamp_tc.nsec = ns; + adapter->tx_tstamp_tc.nsec = ns; + + return 0; +} + +static int +i40e_timesync_read_time(struct rte_eth_dev *dev, struct timespec *ts) +{ + uint64_t ns, systime_cycles; + struct i40e_adapter *adapter = + (struct i40e_adapter *)dev->data->dev_private; + + systime_cycles = i40e_read_systime_cyclecounter(dev); + ns = rte_timecounter_update(&adapter->systime_tc, systime_cycles); + *ts = rte_ns_to_timespec(ns); + + return 0; +} + +static int +i40e_timesync_enable(struct rte_eth_dev *dev) +{ + struct i40e_hw *hw = I40E_DEV_PRIVATE_TO_HW(dev->data->dev_private); + uint32_t tsync_ctl_l; + uint32_t tsync_ctl_h; + + /* Stop the timesync system time. */ + I40E_WRITE_REG(hw, I40E_PRTTSYN_INC_L, 0x0); + I40E_WRITE_REG(hw, I40E_PRTTSYN_INC_H, 0x0); + /* Reset the timesync system time value. */ + I40E_WRITE_REG(hw, I40E_PRTTSYN_TIME_L, 0x0); + I40E_WRITE_REG(hw, I40E_PRTTSYN_TIME_H, 0x0); + + i40e_start_timecounters(dev); + + /* Clear timesync registers. */ + I40E_READ_REG(hw, I40E_PRTTSYN_STAT_0); + I40E_READ_REG(hw, I40E_PRTTSYN_TXTIME_H); + I40E_READ_REG(hw, I40E_PRTTSYN_RXTIME_H(0)); + I40E_READ_REG(hw, I40E_PRTTSYN_RXTIME_H(1)); + I40E_READ_REG(hw, I40E_PRTTSYN_RXTIME_H(2)); + I40E_READ_REG(hw, I40E_PRTTSYN_RXTIME_H(3)); + /* Enable timestamping of PTP packets. */ tsync_ctl_l = I40E_READ_REG(hw, I40E_PRTTSYN_CTL0); tsync_ctl_l |= I40E_PRTTSYN_TSYNENA; @@ -7833,7 +7967,7 @@ i40e_timesync_disable(struct rte_eth_dev *dev) I40E_WRITE_REG(hw, I40E_PRTTSYN_CTL0, tsync_ctl_l); I40E_WRITE_REG(hw, I40E_PRTTSYN_CTL1, tsync_ctl_h); - /* Set the timesync increment value. */ + /* Reset the timesync increment value. */ I40E_WRITE_REG(hw, I40E_PRTTSYN_INC_L, 0x0); I40E_WRITE_REG(hw, I40E_PRTTSYN_INC_H, 0x0); @@ -7845,22 +7979,23 @@ i40e_timesync_read_rx_timestamp(struct rte_eth_dev *dev, struct timespec *timestamp, uint32_t flags) { struct i40e_hw *hw = I40E_DEV_PRIVATE_TO_HW(dev->data->dev_private); + struct i40e_adapter *adapter = + (struct i40e_adapter *)dev->data->dev_private; + uint32_t sync_status; - uint32_t rx_stmpl; - uint32_t rx_stmph; uint32_t index = flags & 0x03; + uint64_t rx_tstamp_cycles; + uint64_t ns; sync_status = I40E_READ_REG(hw, I40E_PRTTSYN_STAT_1); if ((sync_status & (1 << index)) == 0) return -EINVAL; - rx_stmpl = I40E_READ_REG(hw, I40E_PRTTSYN_RXTIME_L(index)); - rx_stmph = I40E_READ_REG(hw, I40E_PRTTSYN_RXTIME_H(index)); + rx_tstamp_cycles = i40e_read_rx_tstamp_cyclecounter(dev, index); + ns = rte_timecounter_update(&adapter->rx_tstamp_tc, rx_tstamp_cycles); + *timestamp = rte_ns_to_timespec(ns); - timestamp->tv_sec = (uint64_t)(((uint64_t)rx_stmph << 32) | rx_stmpl); - timestamp->tv_nsec = 0; - - return 0; + return 0; } static int @@ -7868,21 +8003,22 @@ i40e_timesync_read_tx_timestamp(struct rte_eth_dev *dev, struct timespec *timestamp) { struct i40e_hw *hw = I40E_DEV_PRIVATE_TO_HW(dev->data->dev_private); + struct i40e_adapter *adapter = + (struct i40e_adapter *)dev->data->dev_private; + uint32_t sync_status; - uint32_t tx_stmpl; - uint32_t tx_stmph; + uint64_t tx_tstamp_cycles; + uint64_t ns; sync_status = I40E_READ_REG(hw, I40E_PRTTSYN_STAT_0); if ((sync_status & I40E_PRTTSYN_STAT_0_TXTIME_MASK) == 0) return -EINVAL; - tx_stmpl = I40E_READ_REG(hw, I40E_PRTTSYN_TXTIME_L); - tx_stmph = I40E_READ_REG(hw, I40E_PRTTSYN_TXTIME_H); + tx_tstamp_cycles = i40e_read_tx_tstamp_cyclecounter(dev); + ns = rte_timecounter_update(&adapter->tx_tstamp_tc, tx_tstamp_cycles); + *timestamp = rte_ns_to_timespec(ns); - timestamp->tv_sec = (uint64_t)(((uint64_t)tx_stmph << 32) | tx_stmpl); - timestamp->tv_nsec = 0; - - return 0; + return 0; } /* diff --git a/drivers/net/i40e/i40e_ethdev.h b/drivers/net/i40e/i40e_ethdev.h index d28193548c..be705f7790 100644 --- a/drivers/net/i40e/i40e_ethdev.h +++ b/drivers/net/i40e/i40e_ethdev.h @@ -35,6 +35,7 @@ #define _I40E_ETHDEV_H_ #include +#include #define I40E_VLAN_TAG_SIZE 4 @@ -516,11 +517,16 @@ struct i40e_adapter { struct i40e_vf vf; }; - /* for vector PMD */ + /* For vector PMD */ bool rx_bulk_alloc_allowed; bool rx_vec_allowed; bool tx_simple_allowed; bool tx_vec_allowed; + + /* For PTP */ + struct rte_timecounter systime_tc; + struct rte_timecounter rx_tstamp_tc; + struct rte_timecounter tx_tstamp_tc; }; int i40e_dev_switch_queues(struct i40e_pf *pf, bool on);