From 4d2b226726f4af475fb240e31dcbd453ab3d3dcc Mon Sep 17 00:00:00 2001 From: Tomasz Duszynski Date: Mon, 21 Jun 2021 17:04:31 +0200 Subject: [PATCH] raw/cnxk_bphy: support CGX self test Add support for performing selftest operation. Signed-off-by: Tomasz Duszynski Signed-off-by: Jakub Palider Reviewed-by: Jerin Jacob --- doc/guides/rawdevs/cnxk_bphy.rst | 19 +- drivers/raw/cnxk_bphy/cnxk_bphy_cgx.c | 2 + drivers/raw/cnxk_bphy/cnxk_bphy_cgx.h | 10 + drivers/raw/cnxk_bphy/cnxk_bphy_cgx_test.c | 206 +++++++++++++++++++++ drivers/raw/cnxk_bphy/meson.build | 1 + 5 files changed, 237 insertions(+), 1 deletion(-) create mode 100644 drivers/raw/cnxk_bphy/cnxk_bphy_cgx.h create mode 100644 drivers/raw/cnxk_bphy/cnxk_bphy_cgx_test.c diff --git a/doc/guides/rawdevs/cnxk_bphy.rst b/doc/guides/rawdevs/cnxk_bphy.rst index 0d842a8311..120f953fb5 100644 --- a/doc/guides/rawdevs/cnxk_bphy.rst +++ b/doc/guides/rawdevs/cnxk_bphy.rst @@ -38,7 +38,8 @@ To perform data transfer use standard ``rte_rawdev_enqueue_buffers()`` and responses hence dequeueing is not always necessary. BPHY CGX/RPM PMD accepts ``struct cnxk_bphy_cgx_msg`` messages which differ by type and payload. -Message types along with description are listed below. +Message types along with description are listed below. As for the usage examples please refer to +``cnxk_bphy_cgx_dev_selftest()``. Get link information ~~~~~~~~~~~~~~~~~~~~ @@ -93,3 +94,19 @@ Message is used to start or stop accepting traffic. Message must have type set to ``CNXK_BPHY_CGX_MSG_TYPE_START_RXTX`` or ``CNXK_BPHY_CGX_MSG_TYPE_STOP_RXTX``. Former will enable traffic while the latter will do the opposite. + +Self test +--------- + +On EAL initialization, BPHY CGX/RPM devices will be probed and populated into +the raw devices. The rawdev ID of the device can be obtained using invocation +of ``rte_rawdev_get_dev_id("NAME:x")`` from the test application, where: + +- NAME is the desired subsystem: use "BPHY_CGX" for + RFOE module, +- x is the device's bus id specified in "bus:device.func" (BDF) format. + +Use this identifier for further rawdev function calls. + +The driver's selftest rawdev API can be used to verify the BPHY CGX/RPM +functionality. diff --git a/drivers/raw/cnxk_bphy/cnxk_bphy_cgx.c b/drivers/raw/cnxk_bphy/cnxk_bphy_cgx.c index a8eafae1bb..3da2244146 100644 --- a/drivers/raw/cnxk_bphy/cnxk_bphy_cgx.c +++ b/drivers/raw/cnxk_bphy/cnxk_bphy_cgx.c @@ -9,6 +9,7 @@ #include +#include "cnxk_bphy_cgx.h" #include "rte_pmd_bphy.h" struct cnxk_bphy_cgx_queue { @@ -196,6 +197,7 @@ static const struct rte_rawdev_ops cnxk_bphy_cgx_rawdev_ops = { .enqueue_bufs = cnxk_bphy_cgx_enqueue_bufs, .dequeue_bufs = cnxk_bphy_cgx_dequeue_bufs, .queue_count = cnxk_bphy_cgx_queue_count, + .dev_selftest = cnxk_bphy_cgx_dev_selftest, }; static void diff --git a/drivers/raw/cnxk_bphy/cnxk_bphy_cgx.h b/drivers/raw/cnxk_bphy/cnxk_bphy_cgx.h new file mode 100644 index 0000000000..fb6b31bf4d --- /dev/null +++ b/drivers/raw/cnxk_bphy/cnxk_bphy_cgx.h @@ -0,0 +1,10 @@ +/* SPDX-License-Identifier: BSD-3-Clause + * Copyright(C) 2021 Marvell. + */ + +#ifndef _CNXK_BPHY_CGX_H_ +#define _CNXK_BPHY_CGX_H_ + +int cnxk_bphy_cgx_dev_selftest(uint16_t dev_id); + +#endif /* _CNXK_BPHY_CGX_H_ */ diff --git a/drivers/raw/cnxk_bphy/cnxk_bphy_cgx_test.c b/drivers/raw/cnxk_bphy/cnxk_bphy_cgx_test.c new file mode 100644 index 0000000000..cb4dd4b221 --- /dev/null +++ b/drivers/raw/cnxk_bphy/cnxk_bphy_cgx_test.c @@ -0,0 +1,206 @@ +/* SPDX-License-Identifier: BSD-3-Clause + * Copyright(C) 2021 Marvell. + */ +#include + +#include +#include +#include +#include + +#include "cnxk_bphy_cgx.h" +#include "rte_pmd_bphy.h" + +static int +cnxk_bphy_cgx_enq_msg(uint16_t dev_id, unsigned int queue, void *msg) +{ + struct rte_rawdev_buf *bufs[1]; + struct rte_rawdev_buf buf; + void *q; + int ret; + + q = (void *)(size_t)queue; + buf.buf_addr = msg; + bufs[0] = &buf; + + ret = rte_rawdev_enqueue_buffers(dev_id, bufs, 1, q); + if (ret < 0) + return ret; + if (ret != 1) + return -EIO; + + return 0; +} + +static int +cnxk_bphy_cgx_deq_msg(uint16_t dev_id, unsigned int queue, void **msg) +{ + struct rte_rawdev_buf *bufs[1]; + struct rte_rawdev_buf buf; + void *q; + int ret; + + q = (void *)(size_t)queue; + bufs[0] = &buf; + + ret = rte_rawdev_dequeue_buffers(dev_id, bufs, 1, q); + if (ret < 0) + return ret; + if (ret != 1) + return -EIO; + + *msg = buf.buf_addr; + + return 0; +} + +static int +cnxk_bphy_cgx_link_cond(uint16_t dev_id, unsigned int queue, int cond) +{ + int tries = 10, ret; + + do { + struct cnxk_bphy_cgx_msg_link_info *link_info = NULL; + struct cnxk_bphy_cgx_msg msg; + + msg.type = CNXK_BPHY_CGX_MSG_TYPE_GET_LINKINFO; + ret = cnxk_bphy_cgx_enq_msg(dev_id, queue, &msg); + if (ret) + return ret; + + ret = cnxk_bphy_cgx_deq_msg(dev_id, queue, (void **)&link_info); + if (ret) + return ret; + + if (link_info->link_up == cond) { + rte_free(link_info); + break; + } + + rte_free(link_info); + rte_delay_ms(500); + } while (--tries); + + if (tries) + return !!cond; + + return -ETIMEDOUT; +} + +int +cnxk_bphy_cgx_dev_selftest(uint16_t dev_id) +{ + unsigned int queues, i; + int ret; + + queues = rte_rawdev_queue_count(dev_id); + if (queues == 0) + return -ENODEV; + + ret = rte_rawdev_start(dev_id); + if (ret) + return ret; + + for (i = 0; i < queues; i++) { + struct cnxk_bphy_cgx_msg_set_link_state link_state; + struct cnxk_bphy_cgx_msg msg; + unsigned int descs; + + ret = rte_rawdev_queue_conf_get(dev_id, i, &descs, + sizeof(descs)); + if (ret) + break; + if (descs != 1) { + RTE_LOG(ERR, PMD, "Wrong number of descs reported\n"); + ret = -ENODEV; + break; + } + + RTE_LOG(INFO, PMD, "Testing queue %d\n", i); + + /* stop rx/tx */ + msg.type = CNXK_BPHY_CGX_MSG_TYPE_STOP_RXTX; + ret = cnxk_bphy_cgx_enq_msg(dev_id, i, &msg); + if (ret) { + RTE_LOG(ERR, PMD, "Failed to stop rx/tx\n"); + break; + } + + /* start rx/tx */ + msg.type = CNXK_BPHY_CGX_MSG_TYPE_START_RXTX; + ret = cnxk_bphy_cgx_enq_msg(dev_id, i, &msg); + if (ret) { + RTE_LOG(ERR, PMD, "Failed to start rx/tx\n"); + break; + } + + /* set link down */ + link_state.state = false; + msg.type = CNXK_BPHY_CGX_MSG_TYPE_SET_LINK_STATE; + msg.data = &link_state; + ret = cnxk_bphy_cgx_enq_msg(dev_id, i, &msg); + if (ret) { + RTE_LOG(ERR, PMD, "Failed to set link down\n"); + break; + } + + ret = cnxk_bphy_cgx_link_cond(dev_id, i, 0); + if (ret != 0) + RTE_LOG(ERR, PMD, + "Timed out waiting for a link down\n"); + + /* set link up */ + link_state.state = true; + msg.type = CNXK_BPHY_CGX_MSG_TYPE_SET_LINK_STATE; + msg.data = &link_state; + ret = cnxk_bphy_cgx_enq_msg(dev_id, i, &msg); + if (ret) { + RTE_LOG(ERR, PMD, "Failed to set link up\n"); + break; + } + + ret = cnxk_bphy_cgx_link_cond(dev_id, i, 1); + if (ret != 1) + RTE_LOG(ERR, PMD, "Timed out waiting for a link up\n"); + + /* enable internal loopback */ + msg.type = CNXK_BPHY_CGX_MSG_TYPE_INTLBK_ENABLE; + ret = cnxk_bphy_cgx_enq_msg(dev_id, i, &msg); + if (ret) { + RTE_LOG(ERR, PMD, "Failed to enable internal lbk\n"); + break; + } + + /* disable internal loopback */ + msg.type = CNXK_BPHY_CGX_MSG_TYPE_INTLBK_DISABLE; + ret = cnxk_bphy_cgx_enq_msg(dev_id, i, &msg); + if (ret) { + RTE_LOG(ERR, PMD, "Failed to disable internal lbk\n"); + break; + } + + /* enable ptp */ + msg.type = CNXK_BPHY_CGX_MSG_TYPE_PTP_RX_ENABLE; + ret = cnxk_bphy_cgx_enq_msg(dev_id, i, &msg); + /* ptp not available on RPM */ + if (ret < 0 && ret != -ENOTSUP) { + RTE_LOG(ERR, PMD, "Failed to enable ptp\n"); + break; + } + ret = 0; + + /* disable ptp */ + msg.type = CNXK_BPHY_CGX_MSG_TYPE_PTP_RX_DISABLE; + ret = cnxk_bphy_cgx_enq_msg(dev_id, i, &msg); + /* ptp not available on RPM */ + if (ret < 0 && ret != -ENOTSUP) { + RTE_LOG(ERR, PMD, "Failed to disable ptp\n"); + break; + } + ret = 0; + } + + rte_rawdev_stop(dev_id); + + return ret; +} diff --git a/drivers/raw/cnxk_bphy/meson.build b/drivers/raw/cnxk_bphy/meson.build index 0d65fc5c8a..dc5558ee87 100644 --- a/drivers/raw/cnxk_bphy/meson.build +++ b/drivers/raw/cnxk_bphy/meson.build @@ -5,5 +5,6 @@ deps += ['bus_pci', 'common_cnxk', 'rawdev'] sources = files( 'cnxk_bphy_cgx.c', + 'cnxk_bphy_cgx_test.c', ) headers = files('rte_pmd_bphy.h') -- 2.20.1