From: John McNamara <john.mcnamara@intel.com>
To: dev@dpdk.org
Subject: [dpdk-dev] [PATCH v4 3/7] e1000: add support for ieee1588 timestamping
Date: Thu, 9 Jul 2015 14:30:16 +0100 [thread overview]
Message-ID: <1436448620-13972-4-git-send-email-john.mcnamara@intel.com> (raw)
In-Reply-To: <1436448620-13972-1-git-send-email-john.mcnamara@intel.com>
Add e1000/igb support for new ethdev APIs to enable and read
IEEE1588 PTP timestamps.
Signed-off-by: John McNamara <john.mcnamara@intel.com>
---
drivers/net/e1000/igb_ethdev.c | 115 +++++++++++++++++++++++++++++++++++++++++
1 file changed, 115 insertions(+)
diff --git a/drivers/net/e1000/igb_ethdev.c b/drivers/net/e1000/igb_ethdev.c
index 11e8ab8..eb97218 100644
--- a/drivers/net/e1000/igb_ethdev.c
+++ b/drivers/net/e1000/igb_ethdev.c
@@ -76,6 +76,12 @@
#define IGB_8_BIT_WIDTH CHAR_BIT
#define IGB_8_BIT_MASK UINT8_MAX
+/* Additional timesync values. */
+#define E1000_ETQF_FILTER_1588 3
+#define E1000_TIMINCA_INCVALUE 16000000
+#define E1000_TIMINCA_INIT ((0x02 << E1000_TIMINCA_16NS_SHIFT) \
+ | E1000_TIMINCA_INCVALUE)
+
static int eth_igb_configure(struct rte_eth_dev *dev);
static int eth_igb_start(struct rte_eth_dev *dev);
static void eth_igb_stop(struct rte_eth_dev *dev);
@@ -199,6 +205,13 @@ static int eth_igb_filter_ctrl(struct rte_eth_dev *dev,
static int eth_igb_set_mc_addr_list(struct rte_eth_dev *dev,
struct ether_addr *mc_addr_set,
uint32_t nb_mc_addr);
+static int igb_timesync_enable(struct rte_eth_dev *dev);
+static int igb_timesync_disable(struct rte_eth_dev *dev);
+static int igb_timesync_read_rx_timestamp(struct rte_eth_dev *dev,
+ struct timespec *timestamp,
+ uint32_t flags);
+static int igb_timesync_read_tx_timestamp(struct rte_eth_dev *dev,
+ struct timespec *timestamp);
/*
* Define VF Stats MACRO for Non "cleared on read" register
@@ -276,6 +289,10 @@ static const struct eth_dev_ops eth_igb_ops = {
.rss_hash_conf_get = eth_igb_rss_hash_conf_get,
.filter_ctrl = eth_igb_filter_ctrl,
.set_mc_addr_list = eth_igb_set_mc_addr_list,
+ .timesync_enable = igb_timesync_enable,
+ .timesync_disable = igb_timesync_disable,
+ .timesync_read_rx_timestamp = igb_timesync_read_rx_timestamp,
+ .timesync_read_tx_timestamp = igb_timesync_read_tx_timestamp,
};
/*
@@ -3663,6 +3680,104 @@ eth_igb_set_mc_addr_list(struct rte_eth_dev *dev,
return 0;
}
+static int
+igb_timesync_enable(struct rte_eth_dev *dev)
+{
+ struct e1000_hw *hw = E1000_DEV_PRIVATE_TO_HW(dev->data->dev_private);
+ uint32_t tsync_ctl;
+
+ /* Start incrementing the register used to timestamp PTP packets. */
+ E1000_WRITE_REG(hw, E1000_TIMINCA, E1000_TIMINCA_INIT);
+
+ /* Enable L2 filtering of IEEE1588/802.1AS Ethernet frame types. */
+ E1000_WRITE_REG(hw, E1000_ETQF(E1000_ETQF_FILTER_1588),
+ (ETHER_TYPE_1588 |
+ E1000_ETQF_FILTER_ENABLE |
+ E1000_ETQF_1588));
+
+ /* Enable timestamping of received PTP packets. */
+ tsync_ctl = E1000_READ_REG(hw, E1000_TSYNCRXCTL);
+ tsync_ctl |= E1000_TSYNCRXCTL_ENABLED;
+ E1000_WRITE_REG(hw, E1000_TSYNCRXCTL, tsync_ctl);
+
+ /* Enable Timestamping of transmitted PTP packets. */
+ tsync_ctl = E1000_READ_REG(hw, E1000_TSYNCTXCTL);
+ tsync_ctl |= E1000_TSYNCTXCTL_ENABLED;
+ E1000_WRITE_REG(hw, E1000_TSYNCTXCTL, tsync_ctl);
+
+ return 0;
+}
+
+static int
+igb_timesync_disable(struct rte_eth_dev *dev)
+{
+ struct e1000_hw *hw = E1000_DEV_PRIVATE_TO_HW(dev->data->dev_private);
+ uint32_t tsync_ctl;
+
+ /* Disable timestamping of transmitted PTP packets. */
+ tsync_ctl = E1000_READ_REG(hw, E1000_TSYNCTXCTL);
+ tsync_ctl &= ~E1000_TSYNCTXCTL_ENABLED;
+ E1000_WRITE_REG(hw, E1000_TSYNCTXCTL, tsync_ctl);
+
+ /* Disable timestamping of received PTP packets. */
+ tsync_ctl = E1000_READ_REG(hw, E1000_TSYNCRXCTL);
+ tsync_ctl &= ~E1000_TSYNCRXCTL_ENABLED;
+ E1000_WRITE_REG(hw, E1000_TSYNCRXCTL, tsync_ctl);
+
+ /* Disable L2 filtering of IEEE1588/802.1AS Ethernet frame types. */
+ E1000_WRITE_REG(hw, E1000_ETQF(E1000_ETQF_FILTER_1588), 0);
+
+ /* Stop incrementating the System Time registers. */
+ E1000_WRITE_REG(hw, E1000_TIMINCA, 0);
+
+ return 0;
+}
+
+static int
+igb_timesync_read_rx_timestamp(struct rte_eth_dev *dev,
+ struct timespec *timestamp,
+ uint32_t flags __rte_unused)
+{
+ struct e1000_hw *hw = E1000_DEV_PRIVATE_TO_HW(dev->data->dev_private);
+ uint32_t tsync_rxctl;
+ uint32_t rx_stmpl;
+ uint32_t rx_stmph;
+
+ tsync_rxctl = E1000_READ_REG(hw, E1000_TSYNCRXCTL);
+ if ((tsync_rxctl & E1000_TSYNCRXCTL_VALID) == 0)
+ return -EINVAL;
+
+ rx_stmpl = E1000_READ_REG(hw, E1000_RXSTMPL);
+ rx_stmph = E1000_READ_REG(hw, E1000_RXSTMPH);
+
+ timestamp->tv_sec = (uint64_t)(((uint64_t)rx_stmph << 32) | rx_stmpl);
+ timestamp->tv_nsec = 0;
+
+ return 0;
+}
+
+static int
+igb_timesync_read_tx_timestamp(struct rte_eth_dev *dev,
+ struct timespec *timestamp)
+{
+ struct e1000_hw *hw = E1000_DEV_PRIVATE_TO_HW(dev->data->dev_private);
+ uint32_t tsync_txctl;
+ uint32_t tx_stmpl;
+ uint32_t tx_stmph;
+
+ tsync_txctl = E1000_READ_REG(hw, E1000_TSYNCTXCTL);
+ if ((tsync_txctl & E1000_TSYNCTXCTL_VALID) == 0)
+ return -EINVAL;
+
+ tx_stmpl = E1000_READ_REG(hw, E1000_TXSTMPL);
+ tx_stmph = E1000_READ_REG(hw, E1000_TXSTMPH);
+
+ timestamp->tv_sec = (uint64_t)(((uint64_t)tx_stmph << 32) | tx_stmpl);
+ timestamp->tv_nsec = 0;
+
+ return 0;
+}
+
static struct rte_driver pmd_igb_drv = {
.type = PMD_PDEV,
.init = rte_igb_pmd_init,
--
1.8.1.4
next prev parent reply other threads:[~2015-07-09 13:30 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-07-09 13:30 [dpdk-dev] [PATCH v4 0/7] ethdev: " John McNamara
2015-07-09 13:30 ` [dpdk-dev] [PATCH v4 1/7] " John McNamara
2015-07-09 13:30 ` [dpdk-dev] [PATCH v4 2/7] mbuf: add field for ieee1588 timesync index John McNamara
2015-07-09 13:30 ` John McNamara [this message]
2015-07-09 13:30 ` [dpdk-dev] [PATCH v4 4/7] ixgbe: add support for ieee1588 timestamping John McNamara
2015-07-09 13:30 ` [dpdk-dev] [PATCH v4 5/7] i40e: " John McNamara
2015-07-09 13:30 ` [dpdk-dev] [PATCH v4 6/7] app/testpmd: refactor ieee1588 forwarding John McNamara
2015-07-09 13:30 ` [dpdk-dev] [PATCH v4 7/7] doc: document ieee1588 forwarding mode John McNamara
2015-07-10 0:43 ` [dpdk-dev] [PATCH v4 0/7] ethdev: add support for ieee1588 timestamping Thomas Monjalon
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