From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from dpdk.org (dpdk.org [92.243.14.124]) by inbox.dpdk.org (Postfix) with ESMTP id 0A2A9A0350; Wed, 24 Jun 2020 14:28:38 +0200 (CEST) Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id 6AB7F1D942; Wed, 24 Jun 2020 14:28:05 +0200 (CEST) Received: from us-smtp-delivery-1.mimecast.com (us-smtp-2.mimecast.com [207.211.31.81]) by dpdk.org (Postfix) with ESMTP id 6CEA61D712 for ; Wed, 24 Jun 2020 14:28:04 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1593001684; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=WPTCxijJA6uyr2kShMZ5EGiv8erXqVZpbEASU0Lq6Ls=; b=Xm9A1B09m1TJYW2Bw+BtS1ky7/2uTvH2yztFS6nlHMU0F7ImDkdVh8wZ7Rc/6jyKleNm/0 2Jm2rUz20CVb8o+luoj5lXdN7zJxe8O26CNkLjRfjRU7o6QgqzkqifzWA1cKdMMDWBND7r jK+40h7+euy37vUvxogwztygOk0WRWY= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-345-WYbiEEoMOFG_fopVeHlA3g-1; Wed, 24 Jun 2020 08:28:02 -0400 X-MC-Unique: WYbiEEoMOFG_fopVeHlA3g-1 Received: from smtp.corp.redhat.com (int-mx03.intmail.prod.int.phx2.redhat.com [10.5.11.13]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id ADC90107B7C5; Wed, 24 Jun 2020 12:28:00 +0000 (UTC) Received: from localhost.localdomain (unknown [10.36.110.7]) by smtp.corp.redhat.com (Postfix) with ESMTP id 8610B1C4; Wed, 24 Jun 2020 12:27:52 +0000 (UTC) From: Maxime Coquelin To: matan@mellanox.com, xiao.w.wang@intel.com, zhihong.wang@intel.com, chenbo.xia@intel.com, david.marchand@redhat.com, amorenoz@redhat.com, viacheslavo@mellanox.com, hemant.agrawal@nxp.com, sachin.saxena@nxp.com, grive@u256.net, dev@dpdk.org Cc: Maxime Coquelin Date: Wed, 24 Jun 2020 14:26:51 +0200 Message-Id: <20200624122701.1369327-8-maxime.coquelin@redhat.com> In-Reply-To: <20200624122701.1369327-1-maxime.coquelin@redhat.com> References: <20200624122701.1369327-1-maxime.coquelin@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.13 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 8bit Subject: [dpdk-dev] [PATCH v2 07/14] vhost: replace device ID in applications 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 replaces the use of vDPA device ID with vDPA device pointer. The goals is to remove the vDPA device ID to avoid condusion with the Vhost ID. Signed-off-by: Maxime Coquelin --- examples/vdpa/main.c | 118 +++++++++++++------------ lib/librte_vhost/rte_vdpa.h | 44 ++++++--- lib/librte_vhost/rte_vhost_version.map | 3 +- lib/librte_vhost/vdpa.c | 64 +++++++------- 4 files changed, 123 insertions(+), 106 deletions(-) diff --git a/examples/vdpa/main.c b/examples/vdpa/main.c index 6a719e32d8..54f4940b31 100644 --- a/examples/vdpa/main.c +++ b/examples/vdpa/main.c @@ -27,7 +27,7 @@ struct vdpa_port { char ifname[MAX_PATH_LEN]; - int did; + struct rte_vdpa_device *dev; int vid; uint64_t flags; int stats_n; @@ -105,16 +105,23 @@ static int new_device(int vid) { char ifname[MAX_PATH_LEN]; + struct rte_device *dev; int i; rte_vhost_get_ifname(vid, ifname, sizeof(ifname)); for (i = 0; i < MAX_VDPA_SAMPLE_PORTS; i++) { - if (strncmp(ifname, vports[i].ifname, MAX_PATH_LEN) == 0) { - printf("\nnew port %s, did: %d\n", - ifname, vports[i].did); - vports[i].vid = vid; - break; + if (strncmp(ifname, vports[i].ifname, MAX_PATH_LEN)) + continue; + + dev = rte_vdpa_get_rte_device(vports[i].dev); + if (!dev) { + RTE_LOG(ERR, VDPA, + "Failed to get generic device for port %d\n", i); + continue; } + printf("\nnew port %s, device : %s\n", ifname, dev->name); + vports[i].vid = vid; + break; } if (i >= MAX_VDPA_SAMPLE_PORTS) @@ -126,16 +133,24 @@ new_device(int vid) static void destroy_device(int vid) { + struct rte_device *dev; char ifname[MAX_PATH_LEN]; int i; rte_vhost_get_ifname(vid, ifname, sizeof(ifname)); for (i = 0; i < MAX_VDPA_SAMPLE_PORTS; i++) { - if (strcmp(ifname, vports[i].ifname) == 0) { - printf("\ndestroy port %s, did: %d\n", - ifname, vports[i].did); - break; + if (strncmp(ifname, vports[i].ifname, MAX_PATH_LEN)) + continue; + + dev = rte_vdpa_get_rte_device(vports[i].dev); + if (!dev) { + RTE_LOG(ERR, VDPA, + "Failed to get generic device for port %d\n", i); + continue; } + + printf("\ndestroy port %s, device: %s\n", ifname, dev->name); + break; } } @@ -149,8 +164,6 @@ start_vdpa(struct vdpa_port *vport) { int ret; char *socket_path = vport->ifname; - struct rte_vdpa_device *vdev; - int did = vport->did; if (client_mode) vport->flags |= RTE_VHOST_USER_CLIENT; @@ -174,13 +187,7 @@ start_vdpa(struct vdpa_port *vport) "register driver ops failed: %s\n", socket_path); - vdev = rte_vdpa_get_device(did); - if (!vdev) - rte_exit(EXIT_FAILURE, - "vDPA device retrieval failed: %p\n", - vdev); - - ret = rte_vhost_driver_attach_vdpa_device(socket_path, vdev); + ret = rte_vhost_driver_attach_vdpa_device(socket_path, vport->dev); if (ret != 0) rte_exit(EXIT_FAILURE, "attach vdpa device failed: %s\n", @@ -283,35 +290,31 @@ static void cmd_list_vdpa_devices_parsed( struct cmdline *cl, __rte_unused void *data) { - int did; uint32_t queue_num; uint64_t features; struct rte_vdpa_device *vdev; struct rte_device *dev; struct rte_dev_iterator dev_iter; - cmdline_printf(cl, "device id\tdevice name\tqueue num\tsupported features\n"); + cmdline_printf(cl, "device name\tqueue num\tsupported features\n"); RTE_DEV_FOREACH(dev, "class=vdpa", &dev_iter) { - did = rte_vdpa_find_device_id_by_name(dev->name); - if (did < 0) - continue; - vdev = rte_vdpa_get_device(did); + vdev = rte_vdpa_find_device_by_name(dev->name); if (!vdev) continue; if (vdev->ops->get_queue_num(vdev, &queue_num) < 0) { RTE_LOG(ERR, VDPA, "failed to get vdpa queue number " - "for device id %d.\n", did); + "for device %s.\n", dev->name); continue; } if (vdev->ops->get_features(vdev, &features) < 0) { RTE_LOG(ERR, VDPA, "failed to get vdpa features " - "for device id %d.\n", did); + "for device %s.\n", dev->name); continue; } - cmdline_printf(cl, "%d\t\t%s\t\t%" PRIu32 "\t\t0x%" PRIx64 "\n", - did, dev->name, queue_num, features); + cmdline_printf(cl, "%s\t\t%" PRIu32 "\t\t0x%" PRIx64 "\n", + dev->name, queue_num, features); } } @@ -339,18 +342,18 @@ static void cmd_create_vdpa_port_parsed(void *parsed_result, struct cmdline *cl, __rte_unused void *data) { - int did; + struct rte_vdpa_device *dev; struct cmd_create_result *res = parsed_result; rte_strscpy(vports[devcnt].ifname, res->socket_path, MAX_PATH_LEN); - did = rte_vdpa_find_device_id_by_name(res->bdf); - if (did < 0) { + dev = rte_vdpa_find_device_by_name(res->bdf); + if (dev == NULL) { cmdline_printf(cl, "Unable to find vdpa device id for %s.\n", res->bdf); return; } - vports[devcnt].did = did; + vports[devcnt].dev = dev; if (start_vdpa(&vports[devcnt]) == 0) devcnt++; @@ -378,7 +381,7 @@ cmdline_parse_inst_t cmd_create_vdpa_port = { /* *** STATS *** */ struct cmd_stats_result { cmdline_fixed_string_t stats; - uint16_t did; + cmdline_fixed_string_t bdf; uint16_t qid; }; @@ -386,25 +389,24 @@ static void cmd_device_stats_parsed(void *parsed_result, struct cmdline *cl, __rte_unused void *data) { struct cmd_stats_result *res = parsed_result; - struct rte_vdpa_device *vdev = rte_vdpa_get_device(res->did); + struct rte_vdpa_device *vdev = rte_vdpa_find_device_by_name(res->bdf); struct vdpa_port *vport = NULL; uint32_t first, last; int i; if (!vdev) { - RTE_LOG(ERR, VDPA, "Invalid device id %" PRIu16 ".\n", - res->did); + RTE_LOG(ERR, VDPA, "Invalid device: %s.\n", + res->bdf); return; } for (i = 0; i < RTE_MIN(MAX_VDPA_SAMPLE_PORTS, dev_total); i++) { - if (vports[i].did == res->did) { + if (vports[i].dev == vdev) { vport = &vports[i]; break; } } if (!vport) { - RTE_LOG(ERR, VDPA, "Device id %" PRIu16 " was not created.\n", - res->did); + RTE_LOG(ERR, VDPA, "Device %s was not created.\n", res->bdf); return; } if (res->qid == 0xFFFF) { @@ -412,7 +414,7 @@ static void cmd_device_stats_parsed(void *parsed_result, struct cmdline *cl, last = rte_vhost_get_vring_num(vport->vid); if (last == 0) { RTE_LOG(ERR, VDPA, "Failed to get num of actual virtqs" - " for device id %d.\n", (int)res->did); + " for device %s.\n", res->bdf); return; } last--; @@ -421,10 +423,10 @@ static void cmd_device_stats_parsed(void *parsed_result, struct cmdline *cl, last = res->qid; } if (!vport->stats_names) { - vport->stats_n = rte_vdpa_get_stats_names(vport->did, NULL, 0); + vport->stats_n = rte_vdpa_get_stats_names(vport->dev, NULL, 0); if (vport->stats_n <= 0) { RTE_LOG(ERR, VDPA, "Failed to get names number of " - "device %d stats.\n", (int)res->did); + "device %s stats.\n", res->bdf); return; } vport->stats_names = rte_zmalloc(NULL, @@ -432,26 +434,26 @@ static void cmd_device_stats_parsed(void *parsed_result, struct cmdline *cl, vport->stats_n, 0); if (!vport->stats_names) { RTE_LOG(ERR, VDPA, "Failed to allocate memory for stat" - " names of device %d.\n", (int)res->did); + " names of device %s.\n", res->bdf); return; } - i = rte_vdpa_get_stats_names(vport->did, vport->stats_names, + i = rte_vdpa_get_stats_names(vport->dev, vport->stats_names, vport->stats_n); if (vport->stats_n != i) { - RTE_LOG(ERR, VDPA, "Failed to get names of device %d " - "stats.\n", (int)res->did); + RTE_LOG(ERR, VDPA, "Failed to get names of device %s " + "stats.\n", res->bdf); return; } vport->stats = (struct rte_vdpa_stat *) (vport->stats_names + vport->stats_n); } - cmdline_printf(cl, "\nDevice %d:\n", (int)res->did); + cmdline_printf(cl, "\nDevice %s:\n", res->bdf); for (; first <= last; first++) { memset(vport->stats, 0, sizeof(*vport->stats) * vport->stats_n); - if (rte_vdpa_get_stats(vport->did, (int)first, vport->stats, + if (rte_vdpa_get_stats(vport->dev, (int)first, vport->stats, vport->stats_n) <= 0) { RTE_LOG(ERR, VDPA, "Failed to get vdpa queue statistics" - " for device id %d qid %d.\n", (int)res->did, + " for device %s qid %d.\n", res->bdf, (int)first); return; } @@ -467,8 +469,8 @@ static void cmd_device_stats_parsed(void *parsed_result, struct cmdline *cl, cmdline_parse_token_string_t cmd_device_stats_ = TOKEN_STRING_INITIALIZER(struct cmd_stats_result, stats, "stats"); -cmdline_parse_token_num_t cmd_device_id = - TOKEN_NUM_INITIALIZER(struct cmd_stats_result, did, UINT32); +cmdline_parse_token_string_t cmd_device_bdf = + TOKEN_STRING_INITIALIZER(struct cmd_stats_result, bdf, NULL); cmdline_parse_token_num_t cmd_queue_id = TOKEN_NUM_INITIALIZER(struct cmd_stats_result, qid, UINT32); @@ -478,7 +480,7 @@ cmdline_parse_inst_t cmd_device_stats = { .help_str = "stats: show device statistics", .tokens = { (void *)&cmd_device_stats_, - (void *)&cmd_device_id, + (void *)&cmd_device_bdf, (void *)&cmd_queue_id, NULL, }, @@ -522,9 +524,9 @@ int main(int argc, char *argv[]) { char ch; - int did; int ret; struct cmdline *cl; + struct rte_vdpa_device *vdev; struct rte_device *dev; struct rte_dev_iterator dev_iter; @@ -553,12 +555,12 @@ main(int argc, char *argv[]) cmdline_stdin_exit(cl); } else { RTE_DEV_FOREACH(dev, "class=vdpa", &dev_iter) { - did = rte_vdpa_find_device_id_by_name(dev->name); - if (did < 0) { - rte_panic("Failed to find device id for %s\n", + vdev = rte_vdpa_find_device_by_name(dev->name); + if (vdev == NULL) { + rte_panic("Failed to find vDPA dev for %s\n", dev->name); } - vports[devcnt].did = did; + vports[devcnt].dev = vdev; snprintf(vports[devcnt].ifname, MAX_PATH_LEN, "%s%d", iface, devcnt); diff --git a/lib/librte_vhost/rte_vdpa.h b/lib/librte_vhost/rte_vdpa.h index 109cf83b8f..549b0a2cb0 100644 --- a/lib/librte_vhost/rte_vdpa.h +++ b/lib/librte_vhost/rte_vdpa.h @@ -153,11 +153,26 @@ rte_vdpa_unregister_device(struct rte_vdpa_device *); * @param name * the vdpa device name * @return - * device id on success, -1 on failure + * vDPA device pointer on success, NULL on failure */ __rte_experimental -int -rte_vdpa_find_device_id_by_name(const char *name); +struct rte_vdpa_device * +rte_vdpa_find_device_by_name(const char *name); + +/** + * @warning + * @b EXPERIMENTAL: this API may change without prior notice + * + * Get the generic device from the vdpa device + * + * @param vdpa_dev + * the vdpa device pointer + * @return + * generic device pointer on success, NULL on failure + */ +__rte_experimental +struct rte_device * +rte_vdpa_get_rte_device(struct rte_vdpa_device *vdpa_dev); /** * @warning @@ -252,8 +267,8 @@ rte_vdpa_relay_vring_used(int vid, uint16_t qid, void *vring_m); * And the array index is same with id field of 'struct rte_vdpa_stat': * stats[i].id == i * - * @param did - * device id + * @param dev + * vDPA device pointer * @param stats_names * array of at least size elements to be filled. * If set to NULL, the function returns the required number of elements. @@ -265,8 +280,9 @@ rte_vdpa_relay_vring_used(int vid, uint16_t qid, void *vring_m); */ __rte_experimental int -rte_vdpa_get_stats_names(int did, struct rte_vdpa_stat_name *stats_names, - unsigned int size); +rte_vdpa_get_stats_names(struct rte_vdpa_device *dev, + struct rte_vdpa_stat_name *stats_names, + unsigned int size); /** * @warning @@ -280,8 +296,8 @@ rte_vdpa_get_stats_names(int did, struct rte_vdpa_stat_name *stats_names, * And the array index is same with id field of 'struct rte_vdpa_stat': * stats[i].id == i * - * @param did - * device id + * @param dev + * vDPA device pointer * @param qid * queue id * @param stats @@ -295,16 +311,16 @@ rte_vdpa_get_stats_names(int did, struct rte_vdpa_stat_name *stats_names, */ __rte_experimental int -rte_vdpa_get_stats(int did, uint16_t qid, struct rte_vdpa_stat *stats, - unsigned int n); +rte_vdpa_get_stats(struct rte_vdpa_device *dev, uint16_t qid, + struct rte_vdpa_stat *stats, unsigned int n); /** * @warning * @b EXPERIMENTAL: this API may change without prior notice * * Reset statistics of a vDPA device. * - * @param did - * device id + * @param dev + * vDPA device pointer * @param qid * queue id * @return @@ -312,5 +328,5 @@ rte_vdpa_get_stats(int did, uint16_t qid, struct rte_vdpa_stat *stats, */ __rte_experimental int -rte_vdpa_reset_stats(int did, uint16_t qid); +rte_vdpa_reset_stats(struct rte_vdpa_device *dev, uint16_t qid); #endif /* _RTE_VDPA_H_ */ diff --git a/lib/librte_vhost/rte_vhost_version.map b/lib/librte_vhost/rte_vhost_version.map index 60d67445d7..ba55f6f421 100644 --- a/lib/librte_vhost/rte_vhost_version.map +++ b/lib/librte_vhost/rte_vhost_version.map @@ -69,5 +69,6 @@ EXPERIMENTAL { rte_vhost_get_vhost_ring_inflight; rte_vhost_get_vring_base_from_inflight; rte_vhost_slave_config_change; - rte_vdpa_find_device_id_by_name; + rte_vdpa_find_device_by_name; + rte_vdpa_get_rte_device; }; diff --git a/lib/librte_vhost/vdpa.c b/lib/librte_vhost/vdpa.c index ed20082f0f..91bc483774 100644 --- a/lib/librte_vhost/vdpa.c +++ b/lib/librte_vhost/vdpa.c @@ -40,14 +40,14 @@ rte_vdpa_find_device_id(struct rte_vdpa_device *dev) return -1; } -int -rte_vdpa_find_device_id_by_name(const char *name) +struct rte_vdpa_device * +rte_vdpa_find_device_by_name(const char *name) { struct rte_vdpa_device *dev; int i; if (name == NULL) - return -1; + return NULL; for (i = 0; i < MAX_VHOST_DEVICE; ++i) { dev = &vdpa_devices[i]; @@ -55,10 +55,19 @@ rte_vdpa_find_device_id_by_name(const char *name) continue; if (strcmp(dev->device->name, name) == 0) - return i; + return dev; } - return -1; + return NULL; +} + +struct rte_device * +rte_vdpa_get_rte_device(struct rte_vdpa_device *vdpa_dev) +{ + if (vdpa_dev == NULL) + return NULL; + + return vdpa_dev->device; } struct rte_vdpa_device * @@ -228,50 +237,39 @@ rte_vdpa_relay_vring_used(int vid, uint16_t qid, void *vring_m) } int -rte_vdpa_get_stats_names(int did, struct rte_vdpa_stat_name *stats_names, - unsigned int size) +rte_vdpa_get_stats_names(struct rte_vdpa_device *dev, + struct rte_vdpa_stat_name *stats_names, + unsigned int size) { - struct rte_vdpa_device *vdpa_dev; - - vdpa_dev = rte_vdpa_get_device(did); - if (!vdpa_dev) - return -ENODEV; + if (!dev) + return -EINVAL; - RTE_FUNC_PTR_OR_ERR_RET(vdpa_dev->ops->get_stats_names, -ENOTSUP); + RTE_FUNC_PTR_OR_ERR_RET(dev->ops->get_stats_names, -ENOTSUP); - return vdpa_dev->ops->get_stats_names(vdpa_dev, stats_names, size); + return dev->ops->get_stats_names(dev, stats_names, size); } int -rte_vdpa_get_stats(int did, uint16_t qid, struct rte_vdpa_stat *stats, - unsigned int n) +rte_vdpa_get_stats(struct rte_vdpa_device *dev, uint16_t qid, + struct rte_vdpa_stat *stats, unsigned int n) { - struct rte_vdpa_device *vdpa_dev; - - vdpa_dev = rte_vdpa_get_device(did); - if (!vdpa_dev) - return -ENODEV; - - if (!stats || !n) + if (!dev || !stats || !n) return -EINVAL; - RTE_FUNC_PTR_OR_ERR_RET(vdpa_dev->ops->get_stats, -ENOTSUP); + RTE_FUNC_PTR_OR_ERR_RET(dev->ops->get_stats, -ENOTSUP); - return vdpa_dev->ops->get_stats(vdpa_dev, qid, stats, n); + return dev->ops->get_stats(dev, qid, stats, n); } int -rte_vdpa_reset_stats(int did, uint16_t qid) +rte_vdpa_reset_stats(struct rte_vdpa_device *dev, uint16_t qid) { - struct rte_vdpa_device *vdpa_dev; - - vdpa_dev = rte_vdpa_get_device(did); - if (!vdpa_dev) - return -ENODEV; + if (!dev) + return -EINVAL; - RTE_FUNC_PTR_OR_ERR_RET(vdpa_dev->ops->reset_stats, -ENOTSUP); + RTE_FUNC_PTR_OR_ERR_RET(dev->ops->reset_stats, -ENOTSUP); - return vdpa_dev->ops->reset_stats(vdpa_dev, qid); + return dev->ops->reset_stats(dev, qid); } static uint16_t -- 2.26.2