For the net device type, only interrupt of rxq needed to be relayed.
But for block, since all the queues are used for both read and write
requests. Interrupt of all queues needed to be relayed.
Signed-off-by: Andy Pei <andy....@intel.com>
Reviewed-by: Chenbo Xia <chenbo....@intel.com>
---
drivers/vdpa/ifc/ifcvf_vdpa.c | 9 ++++++++-
1 file changed, 8 insertions(+), 1 deletion(-)
diff --git a/drivers/vdpa/ifc/ifcvf_vdpa.c b/drivers/vdpa/ifc/ifcvf_vdpa.c
index 10a4a25..61fb427 100644
--- a/drivers/vdpa/ifc/ifcvf_vdpa.c
+++ b/drivers/vdpa/ifc/ifcvf_vdpa.c
@@ -369,6 +369,7 @@ 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);
@@ -378,7 +379,13 @@ struct rte_vdpa_dev_info {
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) {
+ if (m_rx == true &&
+ ((i & 1) == 0 || internal->hw.device_type ==
IFCVF_BLK)) {
+ /* For the net we only need to relay rx queue,
+ * which will change the mem of VM.
+ * 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",
--
1.8.3.1
