DPDK patches and discussions
 help / color / mirror / Atom feed
From: Marvin Liu <yong.liu@intel.com>
To: maxime.coquelin@redhat.com, chenbo.xia@intel.com, zhihong.wang@intel.com
Cc: dev@dpdk.org, Marvin Liu <yong.liu@intel.com>
Subject: [dpdk-dev] [PATCH v2 3/5] vhost: prepare memory regions addresses
Date: Mon, 21 Sep 2020 14:48:35 +0800
Message-ID: <20200921064837.15957-4-yong.liu@intel.com> (raw)
In-Reply-To: <20200921064837.15957-1-yong.liu@intel.com>

Prepare memory regions guest physical addresses for vectorized data
path. These information will be utilized by SIMD instructions to find
matched region index.

Signed-off-by: Marvin Liu <yong.liu@intel.com>

diff --git a/lib/librte_vhost/vhost.h b/lib/librte_vhost/vhost.h
index 5a5c945551..4a81f18f01 100644
--- a/lib/librte_vhost/vhost.h
+++ b/lib/librte_vhost/vhost.h
@@ -52,6 +52,8 @@
 
 #define ASYNC_MAX_POLL_SEG 255
 
+#define MAX_NREGIONS 8
+
 #define VHOST_MAX_ASYNC_IT (MAX_PKT_BURST * 2)
 #define VHOST_MAX_ASYNC_VEC (BUF_VECTOR_MAX * 2)
 
@@ -375,6 +377,8 @@ struct inflight_mem_info {
 struct virtio_net {
 	/* Frontend (QEMU) memory and memory region information */
 	struct rte_vhost_memory	*mem;
+	uint64_t		regions_low_addrs[MAX_NREGIONS];
+	uint64_t		regions_high_addrs[MAX_NREGIONS];
 	uint64_t		features;
 	uint64_t		protocol_features;
 	int			vid;
diff --git a/lib/librte_vhost/vhost_user.c b/lib/librte_vhost/vhost_user.c
index c3c924faec..89e75e9e71 100644
--- a/lib/librte_vhost/vhost_user.c
+++ b/lib/librte_vhost/vhost_user.c
@@ -1291,6 +1291,17 @@ vhost_user_set_mem_table(struct virtio_net **pdev, struct VhostUserMsg *msg,
 		}
 	}
 
+	RTE_BUILD_BUG_ON(VHOST_MEMORY_MAX_NREGIONS != 8);
+	if (dev->vectorized) {
+		for (i = 0; i < memory->nregions; i++) {
+			dev->regions_low_addrs[i] =
+				memory->regions[i].guest_phys_addr;
+			dev->regions_high_addrs[i] =
+				memory->regions[i].guest_phys_addr +
+				memory->regions[i].memory_size;
+		}
+	}
+
 	for (i = 0; i < dev->nr_vring; i++) {
 		struct vhost_virtqueue *vq = dev->virtqueue[i];
 
-- 
2.17.1


  parent reply	other threads:[~2020-09-21  6:53 UTC|newest]

Thread overview: 36+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-08-19  3:24 [dpdk-dev] [PATCH v1 0/5] vhost add vectorized data path Marvin Liu
2020-08-19  3:24 ` [dpdk-dev] [PATCH v1 1/5] vhost: " Marvin Liu
2020-09-21  6:48   ` [dpdk-dev] [PATCH v2 0/5] vhost " Marvin Liu
2020-09-21  6:48     ` [dpdk-dev] [PATCH v2 1/5] vhost: " Marvin Liu
2020-09-21  6:48     ` [dpdk-dev] [PATCH v2 2/5] vhost: reuse packed ring functions Marvin Liu
2020-09-21  6:48     ` Marvin Liu [this message]
2020-10-06 15:06       ` [dpdk-dev] [PATCH v2 3/5] vhost: prepare memory regions addresses Maxime Coquelin
2020-09-21  6:48     ` [dpdk-dev] [PATCH v2 4/5] vhost: add packed ring vectorized dequeue Marvin Liu
2020-10-06 14:59       ` Maxime Coquelin
2020-10-08  7:05         ` Liu, Yong
2020-10-06 15:18       ` Maxime Coquelin
2020-10-09  7:59         ` Liu, Yong
2020-09-21  6:48     ` [dpdk-dev] [PATCH v2 5/5] vhost: add packed ring vectorized enqueue Marvin Liu
2020-10-06 15:00       ` Maxime Coquelin
2020-10-08  7:09         ` Liu, Yong
2020-10-06 13:34     ` [dpdk-dev] [PATCH v2 0/5] vhost add vectorized data path Maxime Coquelin
2020-10-08  6:20       ` Liu, Yong
2020-10-09  8:14   ` [dpdk-dev] [PATCH v3 " Marvin Liu
2020-10-09  8:14     ` [dpdk-dev] [PATCH v3 1/5] vhost: " Marvin Liu
2020-10-09  8:14     ` [dpdk-dev] [PATCH v3 2/5] vhost: reuse packed ring functions Marvin Liu
2020-10-09  8:14     ` [dpdk-dev] [PATCH v3 3/5] vhost: prepare memory regions addresses Marvin Liu
2020-10-09  8:14     ` [dpdk-dev] [PATCH v3 4/5] vhost: add packed ring vectorized dequeue Marvin Liu
2020-10-09  8:14     ` [dpdk-dev] [PATCH v3 5/5] vhost: add packed ring vectorized enqueue Marvin Liu
2020-10-12  8:21     ` [dpdk-dev] [PATCH v3 0/5] vhost add vectorized data path Maxime Coquelin
2020-10-12  9:10       ` Liu, Yong
2020-10-12  9:57         ` Maxime Coquelin
2020-10-12 13:24           ` Liu, Yong
2020-10-15 15:28       ` Liu, Yong
2020-10-15 15:35         ` Maxime Coquelin
2020-08-19  3:24 ` [dpdk-dev] [PATCH v1 2/5] vhost: reuse packed ring functions Marvin Liu
2020-08-19  3:24 ` [dpdk-dev] [PATCH v1 3/5] vhost: prepare memory regions addresses Marvin Liu
2020-08-19  3:24 ` [dpdk-dev] [PATCH v1 4/5] vhost: add packed ring vectorized dequeue Marvin Liu
2020-09-18 13:44   ` Maxime Coquelin
2020-09-21  6:26     ` Liu, Yong
2020-09-21  7:47       ` Liu, Yong
2020-08-19  3:24 ` [dpdk-dev] [PATCH v1 5/5] vhost: add packed ring vectorized enqueue Marvin Liu

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20200921064837.15957-4-yong.liu@intel.com \
    --to=yong.liu@intel.com \
    --cc=chenbo.xia@intel.com \
    --cc=dev@dpdk.org \
    --cc=maxime.coquelin@redhat.com \
    --cc=zhihong.wang@intel.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

DPDK patches and discussions

This inbox may be cloned and mirrored by anyone:

	git clone --mirror https://inbox.dpdk.org/dev/0 dev/git/0.git

	# If you have public-inbox 1.1+ installed, you may
	# initialize and index your mirror using the following commands:
	public-inbox-init -V2 dev dev/ https://inbox.dpdk.org/dev \
		dev@dpdk.org
	public-inbox-index dev

Example config snippet for mirrors.
Newsgroup available over NNTP:
	nntp://inbox.dpdk.org/inbox.dpdk.dev


AGPL code for this site: git clone https://public-inbox.org/public-inbox.git