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vdpa/ifc: add interrupt relay for block device

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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.pei@intel.com>
Reviewed-by: Chenbo Xia <chenbo.xia@intel.com>
This commit is contained in:
Andy Pei 2022-05-24 10:48:09 +08:00 committed by Maxime Coquelin
parent 856d03bcdc
commit ff53e9770d
1 changed files with 8 additions and 1 deletions
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9
drivers/vdpa/ifc/ifcvf_vdpa.c
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@ -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",