From: John McNamara Date: Thu, 9 Jul 2015 13:30:19 +0000 (+0100) Subject: app/testpmd: refactor ieee1588 forwarding X-Git-Tag: spdx-start~8801 X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=c4bcc342c8ee;p=dpdk.git app/testpmd: refactor ieee1588 forwarding Refactor the ieee1588_fwd mode in testpmd to use the new ethdev APIs to enable and read IEEE1588 PTP timestamps. Signed-off-by: John McNamara Acked-by: Wenzhuo Lu --- diff --git a/app/test-pmd/ieee1588fwd.c b/app/test-pmd/ieee1588fwd.c index dfbb185b59..069ee2e03f 100644 --- a/app/test-pmd/ieee1588fwd.c +++ b/app/test-pmd/ieee1588fwd.c @@ -1,7 +1,7 @@ /*- * BSD LICENSE * - * Copyright(c) 2010-2014 Intel Corporation. All rights reserved. + * Copyright(c) 2010-2015 Intel Corporation. All rights reserved. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -31,39 +31,9 @@ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include -#include -#include -#include #include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include #include -#include #include "testpmd.h" @@ -77,6 +47,7 @@ struct ptpv2_msg { uint8_t version; /**< must be 0x02 */ uint8_t unused[34]; }; + #define PTP_SYNC_MESSAGE 0x0 #define PTP_DELAY_REQ_MESSAGE 0x1 #define PTP_PATH_DELAY_REQ_MESSAGE 0x2 @@ -108,393 +79,18 @@ struct ptpv2_msg { * is greater than the previous one. */ -/* - * 1GbE 82576 Kawela registers used for IEEE1588 hardware support - */ -#define IGBE_82576_ETQF(n) (0x05CB0 + (4 * (n))) -#define IGBE_82576_ETQF_FILTER_ENABLE (1 << 26) -#define IGBE_82576_ETQF_1588_TIMESTAMP (1 << 30) - -#define IGBE_82576_TSYNCRXCTL 0x0B620 -#define IGBE_82576_TSYNCRXCTL_RXTS_ENABLE (1 << 4) - -#define IGBE_82576_RXSTMPL 0x0B624 -#define IGBE_82576_RXSTMPH 0x0B628 -#define IGBE_82576_RXSATRL 0x0B62C -#define IGBE_82576_RXSATRH 0x0B630 -#define IGBE_82576_TSYNCTXCTL 0x0B614 -#define IGBE_82576_TSYNCTXCTL_TXTS_ENABLE (1 << 4) - -#define IGBE_82576_TXSTMPL 0x0B618 -#define IGBE_82576_TXSTMPH 0x0B61C -#define IGBE_82576_SYSTIML 0x0B600 -#define IGBE_82576_SYSTIMH 0x0B604 -#define IGBE_82576_TIMINCA 0x0B608 -#define IGBE_82576_TIMADJL 0x0B60C -#define IGBE_82576_TIMADJH 0x0B610 -#define IGBE_82576_TSAUXC 0x0B640 -#define IGBE_82576_TRGTTIML0 0x0B644 -#define IGBE_82576_TRGTTIMH0 0x0B648 -#define IGBE_82576_TRGTTIML1 0x0B64C -#define IGBE_82576_TRGTTIMH1 0x0B650 -#define IGBE_82576_AUXSTMPL0 0x0B65C -#define IGBE_82576_AUXSTMPH0 0x0B660 -#define IGBE_82576_AUXSTMPL1 0x0B664 -#define IGBE_82576_AUXSTMPH1 0x0B668 -#define IGBE_82576_TSYNCRXCFG 0x05F50 -#define IGBE_82576_TSSDP 0x0003C - -/* - * 10GbE 82599 Niantic registers used for IEEE1588 hardware support - */ -#define IXGBE_82599_ETQF(n) (0x05128 + (4 * (n))) -#define IXGBE_82599_ETQF_FILTER_ENABLE (1 << 31) -#define IXGBE_82599_ETQF_1588_TIMESTAMP (1 << 30) - -#define IXGBE_82599_TSYNCRXCTL 0x05188 -#define IXGBE_82599_TSYNCRXCTL_RXTS_ENABLE (1 << 4) - -#define IXGBE_82599_RXSTMPL 0x051E8 -#define IXGBE_82599_RXSTMPH 0x051A4 -#define IXGBE_82599_RXSATRL 0x051A0 -#define IXGBE_82599_RXSATRH 0x051A8 -#define IXGBE_82599_RXMTRL 0x05120 -#define IXGBE_82599_TSYNCTXCTL 0x08C00 -#define IXGBE_82599_TSYNCTXCTL_TXTS_ENABLE (1 << 4) - -#define IXGBE_82599_TXSTMPL 0x08C04 -#define IXGBE_82599_TXSTMPH 0x08C08 -#define IXGBE_82599_SYSTIML 0x08C0C -#define IXGBE_82599_SYSTIMH 0x08C10 -#define IXGBE_82599_TIMINCA 0x08C14 -#define IXGBE_82599_TIMADJL 0x08C18 -#define IXGBE_82599_TIMADJH 0x08C1C -#define IXGBE_82599_TSAUXC 0x08C20 -#define IXGBE_82599_TRGTTIML0 0x08C24 -#define IXGBE_82599_TRGTTIMH0 0x08C28 -#define IXGBE_82599_TRGTTIML1 0x08C2C -#define IXGBE_82599_TRGTTIMH1 0x08C30 -#define IXGBE_82599_AUXSTMPL0 0x08C3C -#define IXGBE_82599_AUXSTMPH0 0x08C40 -#define IXGBE_82599_AUXSTMPL1 0x08C44 -#define IXGBE_82599_AUXSTMPH1 0x08C48 - -/** - * Mandatory ETQF register for IEEE1588 packets filter. - */ -#define ETQF_FILTER_1588_REG 3 - -/** - * Recommended value for increment and period of - * the Increment Attribute Register. - */ -#define IEEE1588_TIMINCA_INIT ((0x02 << 24) | 0x00F42400) - -/** - * Data structure with pointers to port-specific functions. - */ -typedef void (*ieee1588_start_t)(portid_t pi); /**< Start IEEE1588 feature. */ -typedef void (*ieee1588_stop_t)(portid_t pi); /**< Stop IEEE1588 feature. */ -typedef int (*tmst_read_t)(portid_t pi, uint64_t *tmst); /**< Read TMST regs */ - -struct port_ieee1588_ops { - ieee1588_start_t ieee1588_start; - ieee1588_stop_t ieee1588_stop; - tmst_read_t rx_tmst_read; - tmst_read_t tx_tmst_read; -}; - -/** - * 1GbE 82576 IEEE1588 operations. - */ -static void -igbe_82576_ieee1588_start(portid_t pi) -{ - uint32_t tsync_ctl; - - /* - * Start incrementation of the System Time registers used to - * timestamp PTP packets. - */ - port_id_pci_reg_write(pi, IGBE_82576_TIMINCA, IEEE1588_TIMINCA_INIT); - port_id_pci_reg_write(pi, IGBE_82576_TSAUXC, 0); - - /* - * Enable L2 filtering of IEEE1588 Ethernet frame types. - */ - port_id_pci_reg_write(pi, IGBE_82576_ETQF(ETQF_FILTER_1588_REG), - (ETHER_TYPE_1588 | - IGBE_82576_ETQF_FILTER_ENABLE | - IGBE_82576_ETQF_1588_TIMESTAMP)); - - /* - * Enable timestamping of received PTP packets. - */ - tsync_ctl = port_id_pci_reg_read(pi, IGBE_82576_TSYNCRXCTL); - tsync_ctl |= IGBE_82576_TSYNCRXCTL_RXTS_ENABLE; - port_id_pci_reg_write(pi, IGBE_82576_TSYNCRXCTL, tsync_ctl); - - /* - * Enable Timestamping of transmitted PTP packets. - */ - tsync_ctl = port_id_pci_reg_read(pi, IGBE_82576_TSYNCTXCTL); - tsync_ctl |= IGBE_82576_TSYNCTXCTL_TXTS_ENABLE; - port_id_pci_reg_write(pi, IGBE_82576_TSYNCTXCTL, tsync_ctl); -} - -static void -igbe_82576_ieee1588_stop(portid_t pi) -{ - uint32_t tsync_ctl; - - /* - * Disable Timestamping of transmitted PTP packets. - */ - tsync_ctl = port_id_pci_reg_read(pi, IGBE_82576_TSYNCTXCTL); - tsync_ctl &= ~IGBE_82576_TSYNCTXCTL_TXTS_ENABLE; - port_id_pci_reg_write(pi, IGBE_82576_TSYNCTXCTL, tsync_ctl); - - /* - * Disable timestamping of received PTP packets. - */ - tsync_ctl = port_id_pci_reg_read(pi, IGBE_82576_TSYNCRXCTL); - tsync_ctl &= ~IGBE_82576_TSYNCRXCTL_RXTS_ENABLE; - port_id_pci_reg_write(pi, IGBE_82576_TSYNCRXCTL, tsync_ctl); - - /* - * Disable L2 filtering of IEEE1588 Ethernet types. - */ - port_id_pci_reg_write(pi, IGBE_82576_ETQF(ETQF_FILTER_1588_REG), 0); - - /* - * Stop incrementation of the System Time registers. - */ - port_id_pci_reg_write(pi, IGBE_82576_TIMINCA, 0); -} - -/** - * Return the 64-bit value contained in the RX IEEE1588 timestamp registers - * of a 1GbE 82576 port. - * - * @param pi - * The port identifier. - * - * @param tmst - * The address of a 64-bit variable to return the value of the RX timestamp. - * - * @return - * -1: the RXSTMPL and RXSTMPH registers of the port are not valid. - * 0: the variable pointed to by the "tmst" parameter contains the value - * of the RXSTMPL and RXSTMPH registers of the port. - */ -static int -igbe_82576_rx_timestamp_read(portid_t pi, uint64_t *tmst) -{ - uint32_t tsync_rxctl; - uint32_t rx_stmpl; - uint32_t rx_stmph; - - tsync_rxctl = port_id_pci_reg_read(pi, IGBE_82576_TSYNCRXCTL); - if ((tsync_rxctl & 0x01) == 0) - return (-1); - - rx_stmpl = port_id_pci_reg_read(pi, IGBE_82576_RXSTMPL); - rx_stmph = port_id_pci_reg_read(pi, IGBE_82576_RXSTMPH); - *tmst = (uint64_t)(((uint64_t) rx_stmph << 32) | rx_stmpl); - return (0); -} - -/** - * Return the 64-bit value contained in the TX IEEE1588 timestamp registers - * of a 1GbE 82576 port. - * - * @param pi - * The port identifier. - * - * @param tmst - * The address of a 64-bit variable to return the value of the TX timestamp. - * - * @return - * -1: the TXSTMPL and TXSTMPH registers of the port are not valid. - * 0: the variable pointed to by the "tmst" parameter contains the value - * of the TXSTMPL and TXSTMPH registers of the port. - */ -static int -igbe_82576_tx_timestamp_read(portid_t pi, uint64_t *tmst) -{ - uint32_t tsync_txctl; - uint32_t tx_stmpl; - uint32_t tx_stmph; - - tsync_txctl = port_id_pci_reg_read(pi, IGBE_82576_TSYNCTXCTL); - if ((tsync_txctl & 0x01) == 0) - return (-1); - - tx_stmpl = port_id_pci_reg_read(pi, IGBE_82576_TXSTMPL); - tx_stmph = port_id_pci_reg_read(pi, IGBE_82576_TXSTMPH); - *tmst = (uint64_t)(((uint64_t) tx_stmph << 32) | tx_stmpl); - return (0); -} - -static struct port_ieee1588_ops igbe_82576_ieee1588_ops = { - .ieee1588_start = igbe_82576_ieee1588_start, - .ieee1588_stop = igbe_82576_ieee1588_stop, - .rx_tmst_read = igbe_82576_rx_timestamp_read, - .tx_tmst_read = igbe_82576_tx_timestamp_read, -}; - -/** - * 10GbE 82599 IEEE1588 operations. - */ -static void -ixgbe_82599_ieee1588_start(portid_t pi) -{ - uint32_t tsync_ctl; - - /* - * Start incrementation of the System Time registers used to - * timestamp PTP packets. - */ - port_id_pci_reg_write(pi, IXGBE_82599_TIMINCA, IEEE1588_TIMINCA_INIT); - - /* - * Enable L2 filtering of IEEE1588 Ethernet frame types. - */ - port_id_pci_reg_write(pi, IXGBE_82599_ETQF(ETQF_FILTER_1588_REG), - (ETHER_TYPE_1588 | - IXGBE_82599_ETQF_FILTER_ENABLE | - IXGBE_82599_ETQF_1588_TIMESTAMP)); - - /* - * Enable timestamping of received PTP packets. - */ - tsync_ctl = port_id_pci_reg_read(pi, IXGBE_82599_TSYNCRXCTL); - tsync_ctl |= IXGBE_82599_TSYNCRXCTL_RXTS_ENABLE; - port_id_pci_reg_write(pi, IXGBE_82599_TSYNCRXCTL, tsync_ctl); - - /* - * Enable Timestamping of transmitted PTP packets. - */ - tsync_ctl = port_id_pci_reg_read(pi, IXGBE_82599_TSYNCTXCTL); - tsync_ctl |= IXGBE_82599_TSYNCTXCTL_TXTS_ENABLE; - port_id_pci_reg_write(pi, IXGBE_82599_TSYNCTXCTL, tsync_ctl); -} - -static void -ixgbe_82599_ieee1588_stop(portid_t pi) -{ - uint32_t tsync_ctl; - - /* - * Disable Timestamping of transmitted PTP packets. - */ - tsync_ctl = port_id_pci_reg_read(pi, IXGBE_82599_TSYNCTXCTL); - tsync_ctl &= ~IXGBE_82599_TSYNCTXCTL_TXTS_ENABLE; - port_id_pci_reg_write(pi, IXGBE_82599_TSYNCTXCTL, tsync_ctl); - - /* - * Disable timestamping of received PTP packets. - */ - tsync_ctl = port_id_pci_reg_read(pi, IXGBE_82599_TSYNCRXCTL); - tsync_ctl &= ~IXGBE_82599_TSYNCRXCTL_RXTS_ENABLE; - port_id_pci_reg_write(pi, IXGBE_82599_TSYNCRXCTL, tsync_ctl); - - /* - * Disable L2 filtering of IEEE1588 Ethernet frame types. - */ - port_id_pci_reg_write(pi, IXGBE_82599_ETQF(ETQF_FILTER_1588_REG), 0); - - /* - * Stop incrementation of the System Time registers. - */ - port_id_pci_reg_write(pi, IXGBE_82599_TIMINCA, 0); -} - -/** - * Return the 64-bit value contained in the RX IEEE1588 timestamp registers - * of a 10GbE 82599 port. - * - * @param pi - * The port identifier. - * - * @param tmst - * The address of a 64-bit variable to return the value of the TX timestamp. - * - * @return - * -1: the RX timestamp registers of the port are not valid. - * 0: the variable pointed to by the "tmst" parameter contains the value - * of the RXSTMPL and RXSTMPH registers of the port. - */ -static int -ixgbe_82599_rx_timestamp_read(portid_t pi, uint64_t *tmst) -{ - uint32_t tsync_rxctl; - uint32_t rx_stmpl; - uint32_t rx_stmph; - - tsync_rxctl = port_id_pci_reg_read(pi, IXGBE_82599_TSYNCRXCTL); - if ((tsync_rxctl & 0x01) == 0) - return (-1); - - rx_stmpl = port_id_pci_reg_read(pi, IXGBE_82599_RXSTMPL); - rx_stmph = port_id_pci_reg_read(pi, IXGBE_82599_RXSTMPH); - *tmst = (uint64_t)(((uint64_t) rx_stmph << 32) | rx_stmpl); - return (0); -} - -/** - * Return the 64-bit value contained in the TX IEEE1588 timestamp registers - * of a 10GbE 82599 port. - * - * @param pi - * The port identifier. - * - * @param tmst - * The address of a 64-bit variable to return the value of the TX timestamp. - * - * @return - * -1: the TXSTMPL and TXSTMPH registers of the port are not valid. - * 0: the variable pointed to by the "tmst" parameter contains the value - * of the TXSTMPL and TXSTMPH registers of the port. - */ -static int -ixgbe_82599_tx_timestamp_read(portid_t pi, uint64_t *tmst) -{ - uint32_t tsync_txctl; - uint32_t tx_stmpl; - uint32_t tx_stmph; - - tsync_txctl = port_id_pci_reg_read(pi, IXGBE_82599_TSYNCTXCTL); - if ((tsync_txctl & 0x01) == 0) - return (-1); - - tx_stmpl = port_id_pci_reg_read(pi, IXGBE_82599_TXSTMPL); - tx_stmph = port_id_pci_reg_read(pi, IXGBE_82599_TXSTMPH); - *tmst = (uint64_t)(((uint64_t) tx_stmph << 32) | tx_stmpl); - return (0); -} - -static struct port_ieee1588_ops ixgbe_82599_ieee1588_ops = { - .ieee1588_start = ixgbe_82599_ieee1588_start, - .ieee1588_stop = ixgbe_82599_ieee1588_stop, - .rx_tmst_read = ixgbe_82599_rx_timestamp_read, - .tx_tmst_read = ixgbe_82599_tx_timestamp_read, -}; - static void -port_ieee1588_rx_timestamp_check(portid_t pi) +port_ieee1588_rx_timestamp_check(portid_t pi, uint32_t index) { - struct port_ieee1588_ops *ieee_ops; - uint64_t rx_tmst; + struct timespec timestamp = {0, 0}; - ieee_ops = (struct port_ieee1588_ops *)ports[pi].fwd_ctx; - if (ieee_ops->rx_tmst_read(pi, &rx_tmst) < 0) { - printf("Port %u: RX timestamp registers not valid\n", + if (rte_eth_timesync_read_rx_timestamp(pi, ×tamp, index) < 0) { + printf("Port %u RX timestamp registers not valid\n", (unsigned) pi); return; } - printf("Port %u RX timestamp value 0x%"PRIu64"\n", - (unsigned) pi, rx_tmst); + printf("Port %u RX timestamp value %"PRIu64"\n", + (unsigned) pi, timestamp.tv_sec); } #define MAX_TX_TMST_WAIT_MICROSECS 1000 /**< 1 milli-second */ @@ -502,26 +98,23 @@ port_ieee1588_rx_timestamp_check(portid_t pi) static void port_ieee1588_tx_timestamp_check(portid_t pi) { - struct port_ieee1588_ops *ieee_ops; - uint64_t tx_tmst; - unsigned wait_us; + struct timespec timestamp = {0, 0}; + unsigned wait_us = 0; - ieee_ops = (struct port_ieee1588_ops *)ports[pi].fwd_ctx; - wait_us = 0; - while ((ieee_ops->tx_tmst_read(pi, &tx_tmst) < 0) && + while ((rte_eth_timesync_read_tx_timestamp(pi, ×tamp) < 0) && (wait_us < MAX_TX_TMST_WAIT_MICROSECS)) { rte_delay_us(1); wait_us++; } if (wait_us >= MAX_TX_TMST_WAIT_MICROSECS) { - printf("Port %u: TX timestamp registers not valid after" + printf("Port %u TX timestamp registers not valid after " "%u micro-seconds\n", (unsigned) pi, (unsigned) MAX_TX_TMST_WAIT_MICROSECS); return; } - printf("Port %u TX timestamp value 0x%"PRIu64" validated after " + printf("Port %u TX timestamp value %"PRIu64" validated after " "%u micro-second%s\n", - (unsigned) pi, tx_tmst, wait_us, + (unsigned) pi, timestamp.tv_sec, wait_us, (wait_us == 1) ? "" : "s"); } @@ -532,6 +125,7 @@ ieee1588_packet_fwd(struct fwd_stream *fs) struct ether_hdr *eth_hdr; struct ptpv2_msg *ptp_hdr; uint16_t eth_type; + uint32_t timesync_index; /* * Receive 1 packet at a time. @@ -547,6 +141,7 @@ ieee1588_packet_fwd(struct fwd_stream *fs) */ eth_hdr = rte_pktmbuf_mtod(mb, struct ether_hdr *); eth_type = rte_be_to_cpu_16(eth_hdr->ether_type); + if (! (mb->ol_flags & PKT_RX_IEEE1588_PTP)) { if (eth_type == ETHER_TYPE_1588) { printf("Port %u Received PTP packet not filtered" @@ -562,7 +157,7 @@ ieee1588_packet_fwd(struct fwd_stream *fs) return; } if (eth_type != ETHER_TYPE_1588) { - printf("Port %u Received NON PTP packet wrongly" + printf("Port %u Received NON PTP packet incorrectly" " detected by hardware\n", (unsigned) fs->rx_port); rte_pktmbuf_free(mb); @@ -573,8 +168,8 @@ ieee1588_packet_fwd(struct fwd_stream *fs) * Check that the received PTP packet is a PTP V2 packet of type * PTP_SYNC_MESSAGE. */ - ptp_hdr = rte_pktmbuf_mtod_offset(mb, struct ptpv2_msg *, - sizeof(struct ether_hdr)); + ptp_hdr = (struct ptpv2_msg *) (rte_pktmbuf_mtod(mb, char *) + + sizeof(struct ether_hdr)); if (ptp_hdr->version != 0x02) { printf("Port %u Received PTP V2 Ethernet frame with wrong PTP" " protocol version 0x%x (should be 0x02)\n", @@ -584,7 +179,7 @@ ieee1588_packet_fwd(struct fwd_stream *fs) } if (ptp_hdr->msg_id != PTP_SYNC_MESSAGE) { printf("Port %u Received PTP V2 Ethernet frame with unexpected" - " messageID 0x%x (expected 0x0 - PTP_SYNC_MESSAGE)\n", + " message ID 0x%x (expected 0x0 - PTP_SYNC_MESSAGE)\n", (unsigned) fs->rx_port, ptp_hdr->msg_id); rte_pktmbuf_free(mb); return; @@ -604,8 +199,11 @@ ieee1588_packet_fwd(struct fwd_stream *fs) return; } - /* Check the RX timestamp */ - port_ieee1588_rx_timestamp_check(fs->rx_port); + /* For i40e we need the timesync register index. It is ignored for the + * other PMDs. */ + timesync_index = mb->timesync & 0x3; + /* Read and check the RX timestamp. */ + port_ieee1588_rx_timestamp_check(fs->rx_port, timesync_index); /* Forward PTP packet with hardware TX timestamp */ mb->ol_flags |= PKT_TX_IEEE1588_TMST; @@ -627,23 +225,13 @@ ieee1588_packet_fwd(struct fwd_stream *fs) static void port_ieee1588_fwd_begin(portid_t pi) { - struct port_ieee1588_ops *ieee_ops; - - if (strcmp(ports[pi].dev_info.driver_name, "rte_igb_pmd") == 0) - ieee_ops = &igbe_82576_ieee1588_ops; - else - ieee_ops = &ixgbe_82599_ieee1588_ops; - ports[pi].fwd_ctx = ieee_ops; - (ieee_ops->ieee1588_start)(pi); + rte_eth_timesync_enable(pi); } static void port_ieee1588_fwd_end(portid_t pi) { - struct port_ieee1588_ops *ieee_ops; - - ieee_ops = (struct port_ieee1588_ops *)ports[pi].fwd_ctx; - (ieee_ops->ieee1588_stop)(pi); + rte_eth_timesync_disable(pi); } struct fwd_engine ieee1588_fwd_engine = { diff --git a/doc/guides/testpmd_app_ug/run_app.rst b/doc/guides/testpmd_app_ug/run_app.rst index b29c176222..54ae2b2338 100644 --- a/doc/guides/testpmd_app_ug/run_app.rst +++ b/doc/guides/testpmd_app_ug/run_app.rst @@ -315,7 +315,7 @@ They must be separated from the EAL options, shown in the previous section, with * --forward-mode=N - Set forwarding mode. (N: io|mac|mac_retry|mac_swap|flowgen|rxonly|txonly|csum|icmpecho) + Set forwarding mode. (N: io|mac|mac_retry|mac_swap|flowgen|rxonly|txonly|csum|icmpecho|ieee1588) * --rss-ip diff --git a/doc/guides/testpmd_app_ug/testpmd_funcs.rst b/doc/guides/testpmd_app_ug/testpmd_funcs.rst index 1d040cbb22..4652962d68 100644 --- a/doc/guides/testpmd_app_ug/testpmd_funcs.rst +++ b/doc/guides/testpmd_app_ug/testpmd_funcs.rst @@ -635,6 +635,8 @@ The available information categories are: * icmpecho: receives a burst of packets, lookup for IMCP echo requests and, if any, send back ICMP echo replies. +* ieee1588: demonstrate L2 IEEE1588 V2 PTP timestamping for RX and TX. Requires ``CONFIG_RTE_LIBRTE_IEEE1588=y``. + Note: TX timestamping is only available in the "Full Featured" TX path. To force ``testpmd`` into this mode set ``--txqflags=0``. Example: