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 v3 3/5] vhost: prepare memory regions addresses
Date: Fri, 9 Oct 2020 16:14:08 +0800 [thread overview]
Message-ID: <20201009081410.63944-4-yong.liu@intel.com> (raw)
In-Reply-To: <20201009081410.63944-1-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 12b7699cf..a19fe9423 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)
@@ -349,6 +351,11 @@ struct inflight_mem_info {
uint64_t size;
};
+struct mem_regions_range {
+ uint64_t regions_low_addrs[MAX_NREGIONS];
+ uint64_t regions_high_addrs[MAX_NREGIONS];
+};
+
/**
* Device structure contains all configuration information relating
* to the device.
@@ -356,6 +363,7 @@ struct inflight_mem_info {
struct virtio_net {
/* Frontend (QEMU) memory and memory region information */
struct rte_vhost_memory *mem;
+ struct mem_regions_range *regions_range;
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 4deceb3e0..2d2a2a1a3 100644
--- a/lib/librte_vhost/vhost_user.c
+++ b/lib/librte_vhost/vhost_user.c
@@ -185,6 +185,11 @@ vhost_backend_cleanup(struct virtio_net *dev)
dev->inflight_info = NULL;
}
+ if (dev->regions_range) {
+ free(dev->regions_range);
+ dev->regions_range = NULL;
+ }
+
if (dev->slave_req_fd >= 0) {
close(dev->slave_req_fd);
dev->slave_req_fd = -1;
@@ -1230,6 +1235,27 @@ vhost_user_set_mem_table(struct virtio_net **pdev, struct VhostUserMsg *msg,
}
}
+ RTE_BUILD_BUG_ON(VHOST_MEMORY_MAX_NREGIONS != 8);
+ if (dev->vectorized) {
+ if (dev->regions_range == NULL) {
+ dev->regions_range = calloc(1,
+ sizeof(struct mem_regions_range));
+ if (!dev->regions_range) {
+ VHOST_LOG_CONFIG(ERR,
+ "failed to alloc dev vectorized area\n");
+ return RTE_VHOST_MSG_RESULT_ERR;
+ }
+ }
+
+ for (i = 0; i < memory->nregions; i++) {
+ dev->regions_range->regions_low_addrs[i] =
+ memory->regions[i].guest_phys_addr;
+ dev->regions_range->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
next prev parent reply other threads:[~2020-10-09 8:21 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 ` [dpdk-dev] [PATCH v2 3/5] vhost: prepare memory regions addresses Marvin Liu
2020-10-06 15:06 ` 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 ` Marvin Liu [this message]
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
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