[PATCH v2 14/36] net/ionic: only request notifyq interrupt if supported

[Andrew Boyer]

Enable the interrupt if the platform & device support it.
This prevents spurious interrupts on virtual platforms.

Signed-off-by: Andrew Boyer <andrew.bo...@amd.com>
---
 drivers/net/ionic/ionic_lif.c | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/drivers/net/ionic/ionic_lif.c b/drivers/net/ionic/ionic_lif.c
index 637473cca5..ccd7ea68bb 100644
--- a/drivers/net/ionic/ionic_lif.c
+++ b/drivers/net/ionic/ionic_lif.c
@@ -1350,6 +1350,7 @@ ionic_lif_notifyq_init(struct ionic_lif *lif)
        struct ionic_dev *idev = &lif->adapter->idev;
        struct ionic_notify_qcq *nqcq = lif->notifyqcq;
        struct ionic_queue *q = &nqcq->qcq.q;
+       uint16_t flags = IONIC_QINIT_F_ENA;
        int err;
 
        struct ionic_admin_ctx ctx = {
@@ -1359,14 +1360,19 @@ ionic_lif_notifyq_init(struct ionic_lif *lif)
                        .type = q->type,
                        .ver = lif->qtype_info[q->type].version,
                        .index = rte_cpu_to_le_32(q->index),
-                       .intr_index = rte_cpu_to_le_16(nqcq->intr.index),
-                       .flags = rte_cpu_to_le_16(IONIC_QINIT_F_IRQ |
-                                               IONIC_QINIT_F_ENA),
+                       .intr_index = rte_cpu_to_le_16(IONIC_INTR_NONE),
                        .ring_size = rte_log2_u32(q->num_descs),
                        .ring_base = rte_cpu_to_le_64(q->base_pa),
                }
        };
 
+       /* Only enable an interrupt if the device supports them */
+       if (lif->adapter->intf->configure_intr != NULL) {
+               flags |= IONIC_QINIT_F_IRQ;
+               ctx.cmd.q_init.intr_index = rte_cpu_to_le_16(nqcq->intr.index);
+       }
+       ctx.cmd.q_init.flags = rte_cpu_to_le_16(flags);
+
        IONIC_PRINT(DEBUG, "notifyq_init.index %d", q->index);
        IONIC_PRINT(DEBUG, "notifyq_init.ring_base 0x%" PRIx64 "", q->base_pa);
        IONIC_PRINT(DEBUG, "notifyq_init.ring_size %d",
-- 
2.17.1