From: Yuanhan Liu <yuanhan.liu@linux.intel.com>
To: dev@dpdk.org
Cc: "Michael S. Tsirkin" <mst@redhat.com>, marcel@redhat.com
Subject: [dpdk-dev] [PATCH v6 04/13] vhost: rxtx: prepare work for multiple queue support
Date: Fri, 9 Oct 2015 13:46:03 +0800 [thread overview]
Message-ID: <1444369572-1157-5-git-send-email-yuanhan.liu@linux.intel.com> (raw)
In-Reply-To: <1444369572-1157-1-git-send-email-yuanhan.liu@linux.intel.com>
From: Changchun Ouyang <changchun.ouyang@intel.com>
Do not use VIRTIO_RXQ or VIRTIO_TXQ anymore; use the queue_id,
instead, which will be set to a proper value for a specific queue
when we have multiple queue support enabled.
For now, queue_id is still set with VIRTIO_RXQ or VIRTIO_TXQ,
so it should not break anything.
Signed-off-by: Changchun Ouyang <changchun.ouyang@intel.com>
Signed-off-by: Yuanhan Liu <yuanhan.liu@linux.intel.com>
---
lib/librte_vhost/vhost_rxtx.c | 46 ++++++++++++++++++++++++++++++-------------
1 file changed, 32 insertions(+), 14 deletions(-)
diff --git a/lib/librte_vhost/vhost_rxtx.c b/lib/librte_vhost/vhost_rxtx.c
index 7026bfa..14e00ef 100644
--- a/lib/librte_vhost/vhost_rxtx.c
+++ b/lib/librte_vhost/vhost_rxtx.c
@@ -42,6 +42,16 @@
#define MAX_PKT_BURST 32
+static inline int __attribute__((always_inline))
+is_valid_virt_queue_idx(uint32_t virtq_idx, int is_tx, uint32_t max_qp_idx)
+{
+ if ((is_tx ^ (virtq_idx & 0x1)) ||
+ (virtq_idx >= max_qp_idx * VIRTIO_QNUM))
+ return 0;
+
+ return 1;
+}
+
/**
* This function adds buffers to the virtio devices RX virtqueue. Buffers can
* be received from the physical port or from another virtio device. A packet
@@ -68,12 +78,14 @@ virtio_dev_rx(struct virtio_net *dev, uint16_t queue_id,
uint8_t success = 0;
LOG_DEBUG(VHOST_DATA, "(%"PRIu64") virtio_dev_rx()\n", dev->device_fh);
- if (unlikely(queue_id != VIRTIO_RXQ)) {
- LOG_DEBUG(VHOST_DATA, "mq isn't supported in this version.\n");
+ if (unlikely(!is_valid_virt_queue_idx(queue_id, 0, dev->virt_qp_nb))) {
+ RTE_LOG(ERR, VHOST_DATA,
+ "%s (%"PRIu64"): virtqueue idx:%d invalid.\n",
+ __func__, dev->device_fh, queue_id);
return 0;
}
- vq = dev->virtqueue[VIRTIO_RXQ];
+ vq = dev->virtqueue[queue_id];
count = (count > MAX_PKT_BURST) ? MAX_PKT_BURST : count;
/*
@@ -235,8 +247,9 @@ virtio_dev_rx(struct virtio_net *dev, uint16_t queue_id,
}
static inline uint32_t __attribute__((always_inline))
-copy_from_mbuf_to_vring(struct virtio_net *dev, uint16_t res_base_idx,
- uint16_t res_end_idx, struct rte_mbuf *pkt)
+copy_from_mbuf_to_vring(struct virtio_net *dev, uint32_t queue_id,
+ uint16_t res_base_idx, uint16_t res_end_idx,
+ struct rte_mbuf *pkt)
{
uint32_t vec_idx = 0;
uint32_t entry_success = 0;
@@ -264,7 +277,7 @@ copy_from_mbuf_to_vring(struct virtio_net *dev, uint16_t res_base_idx,
* Convert from gpa to vva
* (guest physical addr -> vhost virtual addr)
*/
- vq = dev->virtqueue[VIRTIO_RXQ];
+ vq = dev->virtqueue[queue_id];
vb_addr = gpa_to_vva(dev, vq->buf_vec[vec_idx].buf_addr);
vb_hdr_addr = vb_addr;
@@ -464,11 +477,14 @@ virtio_dev_merge_rx(struct virtio_net *dev, uint16_t queue_id,
LOG_DEBUG(VHOST_DATA, "(%"PRIu64") virtio_dev_merge_rx()\n",
dev->device_fh);
- if (unlikely(queue_id != VIRTIO_RXQ)) {
- LOG_DEBUG(VHOST_DATA, "mq isn't supported in this version.\n");
+ if (unlikely(!is_valid_virt_queue_idx(queue_id, 0, dev->virt_qp_nb))) {
+ RTE_LOG(ERR, VHOST_DATA,
+ "%s (%"PRIu64"): virtqueue idx:%d invalid.\n",
+ __func__, dev->device_fh, queue_id);
+ return 0;
}
- vq = dev->virtqueue[VIRTIO_RXQ];
+ vq = dev->virtqueue[queue_id];
count = RTE_MIN((uint32_t)MAX_PKT_BURST, count);
if (count == 0)
@@ -509,8 +525,8 @@ virtio_dev_merge_rx(struct virtio_net *dev, uint16_t queue_id,
res_cur_idx);
} while (success == 0);
- entry_success = copy_from_mbuf_to_vring(dev, res_base_idx,
- res_cur_idx, pkts[pkt_idx]);
+ entry_success = copy_from_mbuf_to_vring(dev, queue_id,
+ res_base_idx, res_cur_idx, pkts[pkt_idx]);
rte_compiler_barrier();
@@ -562,12 +578,14 @@ rte_vhost_dequeue_burst(struct virtio_net *dev, uint16_t queue_id,
uint16_t free_entries, entry_success = 0;
uint16_t avail_idx;
- if (unlikely(queue_id != VIRTIO_TXQ)) {
- LOG_DEBUG(VHOST_DATA, "mq isn't supported in this version.\n");
+ if (unlikely(!is_valid_virt_queue_idx(queue_id, 1, dev->virt_qp_nb))) {
+ RTE_LOG(ERR, VHOST_DATA,
+ "%s (%"PRIu64"): virtqueue idx:%d invalid.\n",
+ __func__, dev->device_fh, queue_id);
return 0;
}
- vq = dev->virtqueue[VIRTIO_TXQ];
+ vq = dev->virtqueue[queue_id];
avail_idx = *((volatile uint16_t *)&vq->avail->idx);
/* If there are no available buffers then return. */
--
1.9.0
next prev parent reply other threads:[~2015-10-09 5:46 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-10-09 5:45 [dpdk-dev] [PATCH v6 00/13] vhost-user multiple queues enabling Yuanhan Liu
2015-10-09 5:46 ` [dpdk-dev] [PATCH v6 01/13] vhost-user: add protocol features support Yuanhan Liu
2015-10-09 5:46 ` [dpdk-dev] [PATCH v6 02/13] vhost-user: add VHOST_USER_GET_QUEUE_NUM message Yuanhan Liu
2015-10-09 5:46 ` [dpdk-dev] [PATCH v6 03/13] vhost: vring queue setup for multiple queue support Yuanhan Liu
2015-10-20 6:49 ` Thomas Monjalon
2015-10-20 6:56 ` Yuanhan Liu
2015-10-09 5:46 ` Yuanhan Liu [this message]
2015-10-20 6:57 ` [dpdk-dev] [PATCH v6 04/13] vhost: rxtx: prepare work " Thomas Monjalon
2015-10-20 7:10 ` Yuanhan Liu
2015-10-20 7:24 ` Thomas Monjalon
2015-10-09 5:46 ` [dpdk-dev] [PATCH v6 05/13] vhost-user: handle VHOST_USER_RESET_OWNER correctly Yuanhan Liu
2015-10-20 7:03 ` Thomas Monjalon
2015-10-20 7:14 ` Yuanhan Liu
2015-10-09 5:46 ` [dpdk-dev] [PATCH v6 06/13] virtio: read virtio_net_config correctly Yuanhan Liu
2015-10-20 7:07 ` Thomas Monjalon
2015-10-20 7:23 ` Yuanhan Liu
2015-10-20 7:27 ` Thomas Monjalon
2015-10-20 8:00 ` Yuanhan Liu
2015-10-09 5:46 ` [dpdk-dev] [PATCH v6 07/13] vhost-user: enable vhost-user multiple queue Yuanhan Liu
2015-10-09 5:46 ` [dpdk-dev] [PATCH v6 08/13] vhost: add VHOST_USER_SET_VRING_ENABLE message Yuanhan Liu
2015-10-09 5:46 ` [dpdk-dev] [PATCH v6 09/13] vhost: add API bind a virtq to a specific core Yuanhan Liu
[not found] ` <C37D651A908B024F974696C65296B57B4B12E8D3@SHSMSX101.ccr.corp.intel.com>
2015-10-20 6:25 ` Yuanhan Liu
2015-10-20 7:17 ` Thomas Monjalon
2015-10-09 5:46 ` [dpdk-dev] [PATCH v6 10/13] ixgbe: support VMDq RSS in non-SRIOV environment Yuanhan Liu
2015-10-20 7:46 ` Thomas Monjalon
[not found] ` <2601191342CEEE43887BDE71AB97725836AB3299@irsmsx105.ger.corp.intel.com>
2015-10-21 13:01 ` Yuanhan Liu
2015-10-21 13:03 ` Ananyev, Konstantin
2015-10-09 5:46 ` [dpdk-dev] [PATCH v6 11/13] examples/vhost: demonstrate the usage of vhost mq feature Yuanhan Liu
2015-10-09 5:46 ` [dpdk-dev] [PATCH v6 12/13] examples/vhost: add per queue stats Yuanhan Liu
2015-10-09 5:46 ` [dpdk-dev] [PATCH v6 13/13] doc: update release note for vhost-user mq support Yuanhan Liu
2015-10-09 13:45 ` [dpdk-dev] [PATCH v6 00/13] vhost-user multiple queues enabling Marcel Apfelbaum
2015-10-19 13:16 ` Flavio Leitner
2015-10-20 10:39 ` Marcel Apfelbaum
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