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From: Andy Pei <andy.pei@intel.com>
To: dev@dpdk.org
Cc: chenbo.xia@intel.com, maxime.coquelin@redhat.com, gang.cao@intel.com,
changpeng.liu@intel.com
Subject: [PATCH v6 05/16] vdpa/ifc: add vDPA interrupt for blk device
Date: Thu, 21 Apr 2022 16:33:43 +0800
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For the block device type, we have to relay
the commands on all queues.
Signed-off-by: Andy Pei <andy.pei@intel.com>
---
drivers/vdpa/ifc/ifcvf_vdpa.c | 46 ++++++++++++++++++++++++++++++++-----------
1 file changed, 35 insertions(+), 11 deletions(-)
diff --git a/drivers/vdpa/ifc/ifcvf_vdpa.c b/drivers/vdpa/ifc/ifcvf_vdpa.c
index 8ee041f..8d104b7 100644
--- a/drivers/vdpa/ifc/ifcvf_vdpa.c
+++ b/drivers/vdpa/ifc/ifcvf_vdpa.c
@@ -370,24 +370,48 @@ struct rte_vdpa_dev_info {
irq_set->index = VFIO_PCI_MSIX_IRQ_INDEX;
irq_set->start = 0;
fd_ptr = (int *)&irq_set->data;
+ /* The first interrupt is for the configure space change notification */
fd_ptr[RTE_INTR_VEC_ZERO_OFFSET] =
rte_intr_fd_get(internal->pdev->intr_handle);
for (i = 0; i < nr_vring; i++)
internal->intr_fd[i] = -1;
- for (i = 0; i < nr_vring; i++) {
- rte_vhost_get_vhost_vring(internal->vid, i, &vring);
- fd_ptr[RTE_INTR_VEC_RXTX_OFFSET + i] = vring.callfd;
- if ((i & 1) == 0 && m_rx == true) {
- fd = eventfd(0, EFD_NONBLOCK | EFD_CLOEXEC);
- if (fd < 0) {
- DRV_LOG(ERR, "can't setup eventfd: %s",
- strerror(errno));
- return -1;
+ if (internal->device_type == IFCVF_NET) {
+ for (i = 0; i < nr_vring; i++) {
+ rte_vhost_get_vhost_vring(internal->vid, i, &vring);
+ fd_ptr[RTE_INTR_VEC_RXTX_OFFSET + i] = vring.callfd;
+ if ((i & 1) == 0 && m_rx == true) {
+ /* For the net we only need to relay rx queue,
+ * which will change the mem of VM.
+ */
+ fd = eventfd(0, EFD_NONBLOCK | EFD_CLOEXEC);
+ if (fd < 0) {
+ DRV_LOG(ERR, "can't setup eventfd: %s",
+ strerror(errno));
+ return -1;
+ }
+ internal->intr_fd[i] = fd;
+ fd_ptr[RTE_INTR_VEC_RXTX_OFFSET + i] = fd;
+ }
+ }
+ } else if (internal->device_type == IFCVF_BLK) {
+ for (i = 0; i < nr_vring; i++) {
+ rte_vhost_get_vhost_vring(internal->vid, i, &vring);
+ fd_ptr[RTE_INTR_VEC_RXTX_OFFSET + i] = vring.callfd;
+ if (m_rx == true) {
+ /* For the blk we need to relay all the read cmd
+ * of each queue
+ */
+ fd = eventfd(0, EFD_NONBLOCK | EFD_CLOEXEC);
+ if (fd < 0) {
+ DRV_LOG(ERR, "can't setup eventfd: %s",
+ strerror(errno));
+ return -1;
+ }
+ internal->intr_fd[i] = fd;
+ fd_ptr[RTE_INTR_VEC_RXTX_OFFSET + i] = fd;
}
- internal->intr_fd[i] = fd;
- fd_ptr[RTE_INTR_VEC_RXTX_OFFSET + i] = fd;
}
}
--
1.8.3.1