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ixgbe: add ieee1588 timestamping

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Add ixgbe support for new ethdev APIs to enable and read IEEE1588
PTP timestamps.

Signed-off-by: John McNamara <john.mcnamara@intel.com>
Acked-by: Wenzhuo Lu <wenzhuo.lu@intel.com>
This commit is contained in:
John McNamara 2015-07-02 16:16:30 +01:00 committed by Thomas Monjalon
parent b8a1a1e7b7
commit 97b6680ca3
1 changed files with 122 additions and 0 deletions
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122
drivers/net/ixgbe/ixgbe_ethdev.c
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@ -118,6 +118,12 @@
#define IXGBE_HKEY_MAX_INDEX 10
/* Additional timesync values. */
#define IXGBE_TIMINCA_16NS_SHIFT 24
#define IXGBE_TIMINCA_INCVALUE 16000000
#define IXGBE_TIMINCA_INIT ((0x02 << IXGBE_TIMINCA_16NS_SHIFT) \
| IXGBE_TIMINCA_INCVALUE)
static int eth_ixgbe_dev_init(struct rte_eth_dev *eth_dev);
static int ixgbe_dev_configure(struct rte_eth_dev *dev);
static int ixgbe_dev_start(struct rte_eth_dev *dev);
@ -263,6 +269,14 @@ static int ixgbe_dev_set_mc_addr_list(struct rte_eth_dev *dev,
struct ether_addr *mc_addr_set,
uint32_t nb_mc_addr);
static int ixgbe_timesync_enable(struct rte_eth_dev *dev);
static int ixgbe_timesync_disable(struct rte_eth_dev *dev);
static int ixgbe_timesync_read_rx_timestamp(struct rte_eth_dev *dev,
struct timespec *timestamp,
uint32_t flags);
static int ixgbe_timesync_read_tx_timestamp(struct rte_eth_dev *dev,
struct timespec *timestamp);
/*
* Define VF Stats MACRO for Non "cleared on read" register
*/
@ -388,6 +402,10 @@ static const struct eth_dev_ops ixgbe_eth_dev_ops = {
.rss_hash_conf_get = ixgbe_dev_rss_hash_conf_get,
.filter_ctrl = ixgbe_dev_filter_ctrl,
.set_mc_addr_list = ixgbe_dev_set_mc_addr_list,
.timesync_enable = ixgbe_timesync_enable,
.timesync_disable = ixgbe_timesync_disable,
.timesync_read_rx_timestamp = ixgbe_timesync_read_rx_timestamp,
.timesync_read_tx_timestamp = ixgbe_timesync_read_tx_timestamp,
};
/*
@ -4514,6 +4532,110 @@ ixgbe_dev_set_mc_addr_list(struct rte_eth_dev *dev,
ixgbe_dev_addr_list_itr, TRUE);
}
static int
ixgbe_timesync_enable(struct rte_eth_dev *dev)
{
struct ixgbe_hw *hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
uint32_t tsync_ctl;
uint32_t tsauxc;
/* Enable system time for platforms where it isn't on by default. */
tsauxc = IXGBE_READ_REG(hw, IXGBE_TSAUXC);
tsauxc &= ~IXGBE_TSAUXC_DISABLE_SYSTIME;
IXGBE_WRITE_REG(hw, IXGBE_TSAUXC, tsauxc);
/* Start incrementing the register used to timestamp PTP packets. */
IXGBE_WRITE_REG(hw, IXGBE_TIMINCA, IXGBE_TIMINCA_INIT);
/* Enable L2 filtering of IEEE1588/802.1AS Ethernet frame types. */
IXGBE_WRITE_REG(hw, IXGBE_ETQF(IXGBE_ETQF_FILTER_1588),
(ETHER_TYPE_1588 |
IXGBE_ETQF_FILTER_EN |
IXGBE_ETQF_1588));
/* Enable timestamping of received PTP packets. */
tsync_ctl = IXGBE_READ_REG(hw, IXGBE_TSYNCRXCTL);
tsync_ctl |= IXGBE_TSYNCRXCTL_ENABLED;
IXGBE_WRITE_REG(hw, IXGBE_TSYNCRXCTL, tsync_ctl);
/* Enable timestamping of transmitted PTP packets. */
tsync_ctl = IXGBE_READ_REG(hw, IXGBE_TSYNCTXCTL);
tsync_ctl |= IXGBE_TSYNCTXCTL_ENABLED;
IXGBE_WRITE_REG(hw, IXGBE_TSYNCTXCTL, tsync_ctl);
return 0;
}
static int
ixgbe_timesync_disable(struct rte_eth_dev *dev)
{
struct ixgbe_hw *hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
uint32_t tsync_ctl;
/* Disable timestamping of transmitted PTP packets. */
tsync_ctl = IXGBE_READ_REG(hw, IXGBE_TSYNCTXCTL);
tsync_ctl &= ~IXGBE_TSYNCTXCTL_ENABLED;
IXGBE_WRITE_REG(hw, IXGBE_TSYNCTXCTL, tsync_ctl);
/* Disable timestamping of received PTP packets. */
tsync_ctl = IXGBE_READ_REG(hw, IXGBE_TSYNCRXCTL);
tsync_ctl &= ~IXGBE_TSYNCRXCTL_ENABLED;
IXGBE_WRITE_REG(hw, IXGBE_TSYNCRXCTL, tsync_ctl);
/* Disable L2 filtering of IEEE1588/802.1AS Ethernet frame types. */
IXGBE_WRITE_REG(hw, IXGBE_ETQF(IXGBE_ETQF_FILTER_1588), 0);
/* Stop incrementating the System Time registers. */
IXGBE_WRITE_REG(hw, IXGBE_TIMINCA, 0);
return 0;
}
static int
ixgbe_timesync_read_rx_timestamp(struct rte_eth_dev *dev,
struct timespec *timestamp,
uint32_t flags __rte_unused)
{
struct ixgbe_hw *hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
uint32_t tsync_rxctl;
uint32_t rx_stmpl;
uint32_t rx_stmph;
tsync_rxctl = IXGBE_READ_REG(hw, IXGBE_TSYNCRXCTL);
if ((tsync_rxctl & IXGBE_TSYNCRXCTL_VALID) == 0)
return -EINVAL;
rx_stmpl = IXGBE_READ_REG(hw, IXGBE_RXSTMPL);
rx_stmph = IXGBE_READ_REG(hw, IXGBE_RXSTMPH);
timestamp->tv_sec = (uint64_t)(((uint64_t)rx_stmph << 32) | rx_stmpl);
timestamp->tv_nsec = 0;
return 0;
}
static int
ixgbe_timesync_read_tx_timestamp(struct rte_eth_dev *dev,
struct timespec *timestamp)
{
struct ixgbe_hw *hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
uint32_t tsync_txctl;
uint32_t tx_stmpl;
uint32_t tx_stmph;
tsync_txctl = IXGBE_READ_REG(hw, IXGBE_TSYNCTXCTL);
if ((tsync_txctl & IXGBE_TSYNCTXCTL_VALID) == 0)
return -EINVAL;
tx_stmpl = IXGBE_READ_REG(hw, IXGBE_TXSTMPL);
tx_stmph = IXGBE_READ_REG(hw, IXGBE_TXSTMPH);
timestamp->tv_sec = (uint64_t)(((uint64_t)tx_stmph << 32) | tx_stmpl);
timestamp->tv_nsec = 0;
return 0;
}
static struct rte_driver rte_ixgbe_driver = {
.type = PMD_PDEV,
.init = rte_ixgbe_pmd_init,