From ff53e9770de6ad1d0e5fb8cc2688e39f264305b4 Mon Sep 17 00:00:00 2001 From: Andy Pei Date: Tue, 24 May 2022 10:48:09 +0800 Subject: [PATCH] vdpa/ifc: add interrupt relay for block device 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 Reviewed-by: Chenbo Xia --- 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 10a4a25ceb..61fb427a59 100644 --- a/drivers/vdpa/ifc/ifcvf_vdpa.c +++ b/drivers/vdpa/ifc/ifcvf_vdpa.c @@ -369,6 +369,7 @@ vdpa_enable_vfio_intr(struct ifcvf_internal *internal, bool m_rx) 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 @@ vdpa_enable_vfio_intr(struct ifcvf_internal *internal, bool m_rx) 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", -- 2.39.5