From patchwork Tue Sep 29 06:42:36 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Jiang, Cheng1" X-Patchwork-Id: 79142 X-Patchwork-Delegate: maxime.coquelin@redhat.com Return-Path: X-Original-To: patchwork@inbox.dpdk.org Delivered-To: patchwork@inbox.dpdk.org Received: from dpdk.org (dpdk.org [92.243.14.124]) by inbox.dpdk.org (Postfix) with ESMTP id 527C7A04DB; Tue, 29 Sep 2020 08:54:05 +0200 (CEST) Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id 65F041D71E; Tue, 29 Sep 2020 08:53:52 +0200 (CEST) Received: from mga07.intel.com (mga07.intel.com [134.134.136.100]) by dpdk.org (Postfix) with ESMTP id 08DB61D704 for ; Tue, 29 Sep 2020 08:53:50 +0200 (CEST) IronPort-SDR: LzP0qSf3utvp7Nbfdg1mH4uRj5DSbbDLurRXfUT/DVWr6Nh+DilcBpuNFBlU3sSBtdt5z8GFr+ i0uLZ799nAtg== X-IronPort-AV: E=McAfee;i="6000,8403,9758"; a="226274534" X-IronPort-AV: E=Sophos;i="5.77,317,1596524400"; d="scan'208";a="226274534" X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga006.jf.intel.com ([10.7.209.51]) by orsmga105.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 28 Sep 2020 23:53:46 -0700 IronPort-SDR: WeJbCRK/Hn00WYUFzSJsNFjRZP/UBusiw4pYPLxJkd2EtT0bd1jl07Jxs+evn/IYv7QiOCiop5 ZadhQjWP6TXg== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.77,317,1596524400"; d="scan'208";a="312108992" Received: from dpdk_jiangcheng.sh.intel.com ([10.67.119.112]) by orsmga006.jf.intel.com with ESMTP; 28 Sep 2020 23:53:41 -0700 From: Cheng Jiang To: maxime.coquelin@redhat.com, chenbo.xia@intel.com, zhihong.wang@intel.com Cc: dev@dpdk.org, patrick.fu@intel.com, Cheng Jiang Date: Tue, 29 Sep 2020 06:42:36 +0000 Message-Id: <20200929064239.41931-2-Cheng1.jiang@intel.com> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20200929064239.41931-1-Cheng1.jiang@intel.com> References: <20200910064351.35513-1-Cheng1.jiang@intel.com> <20200929064239.41931-1-Cheng1.jiang@intel.com> MIME-Version: 1.0 Subject: [dpdk-dev] [PATCH v2 1/4] example/vhost: add async vhost args parsing function X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" This patch is to add async vhost driver arguments parsing function for CBDMA channel, DMA initiation function and args description. The meson build file is changed to fix dependency problem. With these arguments vhost device can be set to use CBDMA or CPU for enqueue operation and bind vhost device with specific CBDMA channel to accelerate data copy. Signed-off-by: Cheng Jiang --- examples/vhost/ioat.c | 116 +++++++++++++++++++++++++++++++++++++ examples/vhost/main.c | 37 +++++++++++- examples/vhost/main.h | 2 + examples/vhost/meson.build | 4 +- 4 files changed, 156 insertions(+), 3 deletions(-) create mode 100644 examples/vhost/ioat.c diff --git a/examples/vhost/ioat.c b/examples/vhost/ioat.c new file mode 100644 index 000000000..ab8130d06 --- /dev/null +++ b/examples/vhost/ioat.c @@ -0,0 +1,116 @@ +/* SPDX-License-Identifier: BSD-3-Clause + * Copyright(c) 2010-2017 Intel Corporation + */ + +#include +#include +#include +#include + +#include "main.h" + +#define MAX_VHOST_DEVICE 1024 +#define IOAT_RING_SIZE 4096 + +struct dma_info { + struct rte_pci_addr addr; + uint16_t dev_id; + bool is_valid; +}; + +struct dma_for_vhost { + struct dma_info dmas[RTE_MAX_QUEUES_PER_PORT * 2]; + uint16_t nr; +}; + +struct dma_for_vhost dma_bind[MAX_VHOST_DEVICE]; + +int +open_ioat(const char *value) +{ + struct dma_for_vhost *dma_info = dma_bind; + char *input = strndup(value, strlen(value) + 1); + char *addrs = input; + char *ptrs[2]; + char *start, *end, *substr; + int64_t vid, vring_id; + struct rte_ioat_rawdev_config config; + struct rte_rawdev_info info = { .dev_private = &config }; + char name[32]; + int dev_id; + int ret = 0; + uint16_t i = 0; + char *dma_arg[MAX_VHOST_DEVICE]; + uint8_t args_nr; + + while (isblank(*addrs)) + addrs++; + if (*addrs == '\0') { + ret = -1; + goto out; + } + + /* process DMA devices within bracket. */ + addrs++; + substr = strtok(addrs, ";]"); + if (!substr) { + ret = -1; + goto out; + } + args_nr = rte_strsplit(substr, strlen(substr), + dma_arg, MAX_VHOST_DEVICE, ','); + do { + char *arg_temp = dma_arg[i]; + rte_strsplit(arg_temp, strlen(arg_temp), ptrs, 2, '@'); + + start = strstr(ptrs[0], "txd"); + if (start == NULL) { + ret = -1; + goto out; + } + + start += 3; + vid = strtol(start, &end, 0); + if (end == start) { + ret = -1; + goto out; + } + + vring_id = 0 + VIRTIO_RXQ; + if (rte_pci_addr_parse(ptrs[1], + &(dma_info + vid)->dmas[vring_id].addr) < 0) { + ret = -1; + goto out; + } + + rte_pci_device_name(&(dma_info + vid)->dmas[vring_id].addr, + name, sizeof(name)); + dev_id = rte_rawdev_get_dev_id(name); + if (dev_id == (uint16_t)(-ENODEV) || + dev_id == (uint16_t)(-EINVAL)) { + ret = -1; + goto out; + } + + if (rte_rawdev_info_get(dev_id, &info, sizeof(config)) < 0 || + strstr(info.driver_name, "ioat") == NULL) { + ret = -1; + goto out; + } + + (dma_info + vid)->dmas[vring_id].dev_id = dev_id; + (dma_info + vid)->dmas[vring_id].is_valid = true; + config.ring_size = IOAT_RING_SIZE; + if (rte_rawdev_configure(dev_id, &info, sizeof(config)) < 0) { + ret = -1; + goto out; + } + rte_rawdev_start(dev_id); + + dma_info->nr++; + i++; + } while (i < args_nr); +out: + free(input); + return ret; +} diff --git a/examples/vhost/main.c b/examples/vhost/main.c index e1578e795..9b1165a78 100644 --- a/examples/vhost/main.c +++ b/examples/vhost/main.c @@ -96,6 +96,10 @@ static int dequeue_zero_copy; static int builtin_net_driver; +static int async_vhost_driver; + +static char dma_type[MAX_LONG_OPT_SZ]; + /* Specify timeout (in useconds) between retries on RX. */ static uint32_t burst_rx_delay_time = BURST_RX_WAIT_US; /* Specify the number of retries on RX. */ @@ -182,6 +186,15 @@ struct mbuf_table lcore_tx_queue[RTE_MAX_LCORE]; / US_PER_S * BURST_TX_DRAIN_US) #define VLAN_HLEN 4 +static inline int +open_dma(const char *value) +{ + if (strncmp(dma_type, "IOAT", 4) == 0) + return open_ioat(value); + else + return -1; +} + /* * Builds up the correct configuration for VMDQ VLAN pool map * according to the pool & queue limits. @@ -458,7 +471,9 @@ us_vhost_usage(const char *prgname) " --tx-csum [0|1] disable/enable TX checksum offload.\n" " --tso [0|1] disable/enable TCP segment offload.\n" " --client register a vhost-user socket as client mode.\n" - " --dequeue-zero-copy enables dequeue zero copy\n", + " --dequeue-zero-copy enables dequeue zero copy\n" + " --dma-type register dma type for your vhost async driver\n" + " --dmas register dma channel for specific vhost device\n", prgname); } @@ -485,6 +500,8 @@ us_vhost_parse_args(int argc, char **argv) {"client", no_argument, &client_mode, 1}, {"dequeue-zero-copy", no_argument, &dequeue_zero_copy, 1}, {"builtin-net-driver", no_argument, &builtin_net_driver, 1}, + {"dma-type", required_argument, NULL, 0}, + {"dmas", required_argument, NULL, 0}, {NULL, 0, 0, 0}, }; @@ -627,6 +644,24 @@ us_vhost_parse_args(int argc, char **argv) } } + if (!strncmp(long_option[option_index].name, + "dma-type", MAX_LONG_OPT_SZ)) { + strcpy(dma_type, optarg); + } + + if (!strncmp(long_option[option_index].name, + "dmas", MAX_LONG_OPT_SZ)) { + if (open_dma(optarg) == -1) { + if (*optarg == -1) { + RTE_LOG(INFO, VHOST_CONFIG, + "Wrong DMA args\n"); + us_vhost_usage(prgname); + } + return -1; + } + async_vhost_driver = 1; + } + break; /* Invalid option - print options. */ diff --git a/examples/vhost/main.h b/examples/vhost/main.h index 7cba0edbf..eac18824b 100644 --- a/examples/vhost/main.h +++ b/examples/vhost/main.h @@ -90,3 +90,5 @@ uint16_t vs_dequeue_pkts(struct vhost_dev *dev, uint16_t queue_id, struct rte_mempool *mbuf_pool, struct rte_mbuf **pkts, uint16_t count); #endif /* _MAIN_H_ */ + +int open_ioat(const char *value); diff --git a/examples/vhost/meson.build b/examples/vhost/meson.build index 872d51153..cb11edd78 100644 --- a/examples/vhost/meson.build +++ b/examples/vhost/meson.build @@ -9,8 +9,8 @@ if not is_linux build = false endif -deps += 'vhost' +deps += ['vhost', 'rawdev_ioat'] allow_experimental_apis = true sources = files( - 'main.c', 'virtio_net.c' + 'main.c', 'virtio_net.c', 'ioat.c' ) From patchwork Tue Sep 29 06:42:37 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Jiang, Cheng1" X-Patchwork-Id: 79143 X-Patchwork-Delegate: maxime.coquelin@redhat.com Return-Path: X-Original-To: patchwork@inbox.dpdk.org Delivered-To: patchwork@inbox.dpdk.org Received: from dpdk.org (dpdk.org [92.243.14.124]) by inbox.dpdk.org (Postfix) with ESMTP id A94D6A04C0; Tue, 29 Sep 2020 08:54:23 +0200 (CEST) Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id 68F5C1D8D7; Tue, 29 Sep 2020 08:53:58 +0200 (CEST) Received: from mga07.intel.com (mga07.intel.com [134.134.136.100]) by dpdk.org (Postfix) with ESMTP id 120091D8CB for ; Tue, 29 Sep 2020 08:53:51 +0200 (CEST) IronPort-SDR: x5lr1a6/jzHWpLAmDiYRxLBG6KjsuZy2C/SDRGOFPDt8n1UEOPK3/dedgOLIZk7lGAKi1WgS2M aElfMBuWTWtQ== X-IronPort-AV: E=McAfee;i="6000,8403,9758"; a="226274546" X-IronPort-AV: E=Sophos;i="5.77,317,1596524400"; d="scan'208";a="226274546" X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga006.jf.intel.com ([10.7.209.51]) by orsmga105.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 28 Sep 2020 23:53:51 -0700 IronPort-SDR: e3tYlhn3Et80v5ye/n/JuErwV1KUFhuletobw3UKaQvIeX6KEiBdA1NKTViLT7MTQtOd6g8bPr kc4rv8MQg2wA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.77,317,1596524400"; d="scan'208";a="312109018" Received: from dpdk_jiangcheng.sh.intel.com ([10.67.119.112]) by orsmga006.jf.intel.com with ESMTP; 28 Sep 2020 23:53:49 -0700 From: Cheng Jiang To: maxime.coquelin@redhat.com, chenbo.xia@intel.com, zhihong.wang@intel.com Cc: dev@dpdk.org, patrick.fu@intel.com, Cheng Jiang Date: Tue, 29 Sep 2020 06:42:37 +0000 Message-Id: <20200929064239.41931-3-Cheng1.jiang@intel.com> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20200929064239.41931-1-Cheng1.jiang@intel.com> References: <20200910064351.35513-1-Cheng1.jiang@intel.com> <20200929064239.41931-1-Cheng1.jiang@intel.com> MIME-Version: 1.0 Subject: [dpdk-dev] [PATCH v2 2/4] example/vhost: add support for vhost async data path X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" This patch is to implement vhost DMA operation callbacks for CBDMA PMD and add vhost async data-path in vhost sample. With providing callback implementation for CBDMA, vswitch can leverage IOAT to accelerate vhost async data-path. Signed-off-by: Cheng Jiang --- examples/vhost/ioat.c | 93 +++++++++++++++++++++++++++++++++++++++++++ examples/vhost/main.c | 61 +++++++++++++++++++++++++++- examples/vhost/main.h | 12 ++++++ 3 files changed, 165 insertions(+), 1 deletion(-) diff --git a/examples/vhost/ioat.c b/examples/vhost/ioat.c index ab8130d06..063666aa2 100644 --- a/examples/vhost/ioat.c +++ b/examples/vhost/ioat.c @@ -6,11 +6,13 @@ #include #include #include +#include #include "main.h" #define MAX_VHOST_DEVICE 1024 #define IOAT_RING_SIZE 4096 +#define MAX_ENQUEUED_SIZE 256 struct dma_info { struct rte_pci_addr addr; @@ -25,6 +27,15 @@ struct dma_for_vhost { struct dma_for_vhost dma_bind[MAX_VHOST_DEVICE]; +struct packet_tracker { + unsigned short size_track[MAX_ENQUEUED_SIZE]; + unsigned short next_read; + unsigned short next_write; + unsigned short last_remain; +}; + +struct packet_tracker cb_tracker[MAX_VHOST_DEVICE]; + int open_ioat(const char *value) { @@ -114,3 +125,85 @@ open_ioat(const char *value) free(input); return ret; } + +uint32_t +ioat_transfer_data_cb(int vid, uint16_t queue_id, + struct rte_vhost_async_desc *descs, + struct rte_vhost_async_status *opaque_data, uint16_t count) +{ + int ret; + uint32_t i_desc; + int dev_id = dma_bind[vid].dmas[queue_id * 2 + VIRTIO_RXQ].dev_id; + struct rte_vhost_iov_iter *src = NULL; + struct rte_vhost_iov_iter *dst = NULL; + unsigned long i_seg; + unsigned short mask = MAX_ENQUEUED_SIZE - 1; + unsigned short write = cb_tracker[dev_id].next_write; + + if (likely(!opaque_data)) { + for (i_desc = 0; i_desc < count; i_desc++) { + src = descs[i_desc].src; + dst = descs[i_desc].dst; + i_seg = 0; + while (i_seg < src->nr_segs) { + ret = rte_ioat_enqueue_copy(dev_id, + (uintptr_t)(src->iov[i_seg].iov_base) + + src->offset, + (uintptr_t)(dst->iov[i_seg].iov_base) + + dst->offset, + src->iov[i_seg].iov_len, + 0, + 0, + 0); + if (ret != 1) + break; + i_seg++; + } + write &= mask; + cb_tracker[dev_id].size_track[write] = i_seg; + write++; + } + } else { + /* Opaque data is not supported */ + return -1; + } + /* ring the doorbell */ + rte_ioat_do_copies(dev_id); + cb_tracker[dev_id].next_write = write; + return i_desc; +} + +uint32_t +ioat_check_completed_copies_cb(int vid, uint16_t queue_id, + struct rte_vhost_async_status *opaque_data, + uint16_t max_packets) +{ + if (!opaque_data) { + uintptr_t dump[255]; + unsigned short n_seg; + unsigned short read; + unsigned short nb_packet = 0; + unsigned short mask = MAX_ENQUEUED_SIZE - 1; + int dev_id = dma_bind[vid].dmas[queue_id * 2 + + VIRTIO_RXQ].dev_id; + n_seg = rte_ioat_completed_copies(dev_id, 255, dump, dump); + n_seg = n_seg + cb_tracker[dev_id].last_remain; + read = cb_tracker[dev_id].next_read; + for (unsigned short i = 0; i < max_packets; i++) { + read &= mask; + if (n_seg >= cb_tracker[dev_id].size_track[read]) { + n_seg -= cb_tracker[dev_id].size_track[read]; + read++; + nb_packet++; + } else { + break; + } + } + cb_tracker[dev_id].next_read = read; + cb_tracker[dev_id].last_remain = n_seg; + return nb_packet; + } else { + /* Opaque data is not supported */ + return -1; + } +} diff --git a/examples/vhost/main.c b/examples/vhost/main.c index 9b1165a78..893edbb78 100644 --- a/examples/vhost/main.c +++ b/examples/vhost/main.c @@ -817,9 +817,26 @@ virtio_xmit(struct vhost_dev *dst_vdev, struct vhost_dev *src_vdev, struct rte_mbuf *m) { uint16_t ret; + struct rte_mbuf *m_cpl[1]; if (builtin_net_driver) { ret = vs_enqueue_pkts(dst_vdev, VIRTIO_RXQ, &m, 1); + } else if (async_vhost_driver) { + ret = rte_vhost_submit_enqueue_burst(dst_vdev->vid, VIRTIO_RXQ, + &m, 1); + + if (likely(ret)) { + dst_vdev->nr_async_pkts++; + rte_mbuf_refcnt_update(m, 1); + } + + while (likely(dst_vdev->nr_async_pkts)) { + if (rte_vhost_poll_enqueue_completed(dst_vdev->vid, + VIRTIO_RXQ, m_cpl, 1)) { + dst_vdev->nr_async_pkts--; + rte_pktmbuf_free(*m_cpl); + } + } } else { ret = rte_vhost_enqueue_burst(dst_vdev->vid, VIRTIO_RXQ, &m, 1); } @@ -1068,6 +1085,19 @@ drain_mbuf_table(struct mbuf_table *tx_q) } } +static __rte_always_inline void +complete_async_pkts(struct vhost_dev *vdev, uint16_t qid) +{ + struct rte_mbuf *p_cpl[MAX_PKT_BURST]; + uint16_t complete_count; + + complete_count = rte_vhost_poll_enqueue_completed(vdev->vid, + qid, p_cpl, MAX_PKT_BURST); + vdev->nr_async_pkts -= complete_count; + if (complete_count) + free_pkts(p_cpl, complete_count); +} + static __rte_always_inline void drain_eth_rx(struct vhost_dev *vdev) { @@ -1076,6 +1106,10 @@ drain_eth_rx(struct vhost_dev *vdev) rx_count = rte_eth_rx_burst(ports[0], vdev->vmdq_rx_q, pkts, MAX_PKT_BURST); + + while (likely(vdev->nr_async_pkts)) + complete_async_pkts(vdev, VIRTIO_RXQ); + if (!rx_count) return; @@ -1100,16 +1134,22 @@ drain_eth_rx(struct vhost_dev *vdev) if (builtin_net_driver) { enqueue_count = vs_enqueue_pkts(vdev, VIRTIO_RXQ, pkts, rx_count); + } else if (async_vhost_driver) { + enqueue_count = rte_vhost_submit_enqueue_burst(vdev->vid, + VIRTIO_RXQ, pkts, rx_count); + vdev->nr_async_pkts += enqueue_count; } else { enqueue_count = rte_vhost_enqueue_burst(vdev->vid, VIRTIO_RXQ, pkts, rx_count); } + if (enable_stats) { rte_atomic64_add(&vdev->stats.rx_total_atomic, rx_count); rte_atomic64_add(&vdev->stats.rx_atomic, enqueue_count); } - free_pkts(pkts, rx_count); + if (!async_vhost_driver) + free_pkts(pkts, rx_count); } static __rte_always_inline void @@ -1256,6 +1296,9 @@ destroy_device(int vid) "(%d) device has been removed from data core\n", vdev->vid); + if (async_vhost_driver) + rte_vhost_async_channel_unregister(vid, VIRTIO_RXQ); + rte_free(vdev); } @@ -1270,6 +1313,12 @@ new_device(int vid) uint32_t device_num_min = num_devices; struct vhost_dev *vdev; + struct rte_vhost_async_channel_ops channel_ops = { + .transfer_data = ioat_transfer_data_cb, + .check_completed_copies = ioat_check_completed_copies_cb + }; + struct rte_vhost_async_features f; + vdev = rte_zmalloc("vhost device", sizeof(*vdev), RTE_CACHE_LINE_SIZE); if (vdev == NULL) { RTE_LOG(INFO, VHOST_DATA, @@ -1310,6 +1359,13 @@ new_device(int vid) "(%d) device has been added to data core %d\n", vid, vdev->coreid); + if (async_vhost_driver) { + f.async_inorder = 1; + f.async_threshold = 256; + return rte_vhost_async_channel_register(vid, VIRTIO_RXQ, + f.intval, &channel_ops); + } + return 0; } @@ -1551,6 +1607,9 @@ main(int argc, char *argv[]) /* Register vhost user driver to handle vhost messages. */ for (i = 0; i < nb_sockets; i++) { char *file = socket_files + i * PATH_MAX; + if (async_vhost_driver) + flags = flags | RTE_VHOST_USER_ASYNC_COPY; + ret = rte_vhost_driver_register(file, flags); if (ret != 0) { unregister_drivers(i); diff --git a/examples/vhost/main.h b/examples/vhost/main.h index eac18824b..e4cf13190 100644 --- a/examples/vhost/main.h +++ b/examples/vhost/main.h @@ -8,6 +8,7 @@ #include #include +#include /* Macros for printing using RTE_LOG */ #define RTE_LOGTYPE_VHOST_CONFIG RTE_LOGTYPE_USER1 @@ -51,6 +52,7 @@ struct vhost_dev { uint64_t features; size_t hdr_len; uint16_t nr_vrings; + uint16_t nr_async_pkts; struct rte_vhost_memory *mem; struct device_statistics stats; TAILQ_ENTRY(vhost_dev) global_vdev_entry; @@ -92,3 +94,13 @@ uint16_t vs_dequeue_pkts(struct vhost_dev *dev, uint16_t queue_id, #endif /* _MAIN_H_ */ int open_ioat(const char *value); + +uint32_t +ioat_transfer_data_cb(int vid, uint16_t queue_id, + struct rte_vhost_async_desc *descs, + struct rte_vhost_async_status *opaque_data, uint16_t count); + +uint32_t +ioat_check_completed_copies_cb(int vid, uint16_t queue_id, + struct rte_vhost_async_status *opaque_data, + uint16_t max_packets); From patchwork Tue Sep 29 06:42:38 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Jiang, Cheng1" X-Patchwork-Id: 79144 X-Patchwork-Delegate: maxime.coquelin@redhat.com Return-Path: X-Original-To: patchwork@inbox.dpdk.org Delivered-To: patchwork@inbox.dpdk.org Received: from dpdk.org (dpdk.org [92.243.14.124]) by inbox.dpdk.org (Postfix) with ESMTP id 7D39DA04C0; Tue, 29 Sep 2020 08:54:41 +0200 (CEST) Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id 10FFF1D8E7; Tue, 29 Sep 2020 08:54:00 +0200 (CEST) Received: from mga07.intel.com (mga07.intel.com [134.134.136.100]) by dpdk.org (Postfix) with ESMTP id 646731D6E9 for ; Tue, 29 Sep 2020 08:53:55 +0200 (CEST) IronPort-SDR: BBrMtNck1kmW+uV4zZgmbU6yzHZ59WhzomYiLsiq8bkmaWJvbGYkUbMXvCzY4hSz9kyGqi7nXE ZpBSic3RtojQ== X-IronPort-AV: E=McAfee;i="6000,8403,9758"; a="226274558" X-IronPort-AV: E=Sophos;i="5.77,317,1596524400"; d="scan'208";a="226274558" X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga006.jf.intel.com ([10.7.209.51]) by orsmga105.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 28 Sep 2020 23:53:55 -0700 IronPort-SDR: IR4+/v/t6fMnO3eHgzxpg8blKy+ZwwCJOh23RaqJdWRGZShWQDS2WyD08fpUOWUuqI+WXtxaGD goJ6UDCl+ehg== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.77,317,1596524400"; d="scan'208";a="312109032" Received: from dpdk_jiangcheng.sh.intel.com ([10.67.119.112]) by orsmga006.jf.intel.com with ESMTP; 28 Sep 2020 23:53:52 -0700 From: Cheng Jiang To: maxime.coquelin@redhat.com, chenbo.xia@intel.com, zhihong.wang@intel.com Cc: dev@dpdk.org, patrick.fu@intel.com, Cheng Jiang Date: Tue, 29 Sep 2020 06:42:38 +0000 Message-Id: <20200929064239.41931-4-Cheng1.jiang@intel.com> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20200929064239.41931-1-Cheng1.jiang@intel.com> References: <20200910064351.35513-1-Cheng1.jiang@intel.com> <20200929064239.41931-1-Cheng1.jiang@intel.com> MIME-Version: 1.0 Subject: [dpdk-dev] [PATCH v2 3/4] doc: update vhost sample doc for vhost async data path X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" Add vhost async driver arguments information for vhost async data path in vhost sample application. Signed-off-by: Cheng Jiang --- doc/guides/sample_app_ug/vhost.rst | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/doc/guides/sample_app_ug/vhost.rst b/doc/guides/sample_app_ug/vhost.rst index b7ed4f8bd..0f4f70945 100644 --- a/doc/guides/sample_app_ug/vhost.rst +++ b/doc/guides/sample_app_ug/vhost.rst @@ -162,6 +162,17 @@ enabled and cannot be disabled. A very simple vhost-user net driver which demonstrates how to use the generic vhost APIs will be used when this option is given. It is disabled by default. +**--dma-type** +This parameter is used to specify DMA type for async vhost-user net driver which +demonstrates how to use the async vhost APIs. It's used in combination with dmas. + +**--dmas** +This parameter is used to specify the assigned DMA device of a vhost device. +Async vhost-user net driver will be used if --dmas is set. For example +--dmas [txd0@00:04.0,txd1@00:04.1] means use DMA channel 00:04.0 for vhost +device 0 enqueue operation and use DMA channel 00:04.1 for vhost device 1 +enqueue operation. + Common Issues ------------- From patchwork Tue Sep 29 06:42:39 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Jiang, Cheng1" X-Patchwork-Id: 79145 X-Patchwork-Delegate: maxime.coquelin@redhat.com Return-Path: X-Original-To: patchwork@inbox.dpdk.org Delivered-To: patchwork@inbox.dpdk.org Received: from dpdk.org (dpdk.org [92.243.14.124]) by inbox.dpdk.org (Postfix) with ESMTP id D8A22A04C0; Tue, 29 Sep 2020 08:55:00 +0200 (CEST) Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id 32AC81D90B; Tue, 29 Sep 2020 08:54:10 +0200 (CEST) Received: from mga07.intel.com (mga07.intel.com [134.134.136.100]) by dpdk.org (Postfix) with ESMTP id 8A8301D909 for ; Tue, 29 Sep 2020 08:54:04 +0200 (CEST) IronPort-SDR: 8g09eMnOWY0LxkQCjrxrjufHkTrLQmO30m+/pS/c7pvxaxUNlfaaIh7Gzy1GZqicZFesHHoY5S CT9U4YQobMNA== X-IronPort-AV: E=McAfee;i="6000,8403,9758"; a="226274562" X-IronPort-AV: E=Sophos;i="5.77,317,1596524400"; d="scan'208";a="226274562" X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga006.jf.intel.com ([10.7.209.51]) by orsmga105.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 28 Sep 2020 23:54:01 -0700 IronPort-SDR: wy/GtwkkpyuQ1+8jVbXU1irwHKva5W0Myzg8rTmSWA+2blJvgCWtlIQ0Ge/xjWV47TlWpFW70f KdrZCgwpaaJA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.77,317,1596524400"; d="scan'208";a="312109041" Received: from dpdk_jiangcheng.sh.intel.com ([10.67.119.112]) by orsmga006.jf.intel.com with ESMTP; 28 Sep 2020 23:53:56 -0700 From: Cheng Jiang To: maxime.coquelin@redhat.com, chenbo.xia@intel.com, zhihong.wang@intel.com Cc: dev@dpdk.org, patrick.fu@intel.com, Cheng Jiang Date: Tue, 29 Sep 2020 06:42:39 +0000 Message-Id: <20200929064239.41931-5-Cheng1.jiang@intel.com> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20200929064239.41931-1-Cheng1.jiang@intel.com> References: <20200910064351.35513-1-Cheng1.jiang@intel.com> <20200929064239.41931-1-Cheng1.jiang@intel.com> MIME-Version: 1.0 Subject: [dpdk-dev] [PATCH v2 4/4] doc: update release notes for vhost sample X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" Add release notes for vhost async data path support in vhost sample. Signed-off-by: Cheng Jiang --- doc/guides/rel_notes/release_20_11.rst | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/doc/guides/rel_notes/release_20_11.rst b/doc/guides/rel_notes/release_20_11.rst index 92431cd52..6439146b2 100644 --- a/doc/guides/rel_notes/release_20_11.rst +++ b/doc/guides/rel_notes/release_20_11.rst @@ -55,6 +55,12 @@ New Features Also, make sure to start the actual text at the margin. ======================================================= +* **Updated vhost sample application.** + + Added vhost asynchronous APIs support, which demonstrated how the application + leverage IOAT DMA channel with vhost asynchronous APIs. + See the :doc:`../sample_app_ug/vhost` for more details. + Removed Items -------------