1 files changed, 127 insertions, 0 deletions
diff --git a/src/spdk/dpdk/drivers/net/bnxt/bnxt_irq.c b/src/spdk/dpdk/drivers/net/bnxt/bnxt_irq.c
new file mode 100644
index 00000000..7ef7023e
--- /dev/null
+++ b/src/spdk/dpdk/drivers/net/bnxt/bnxt_irq.c
@@ -0,0 +1,127 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2014-2018 Broadcom
+ * All rights reserved.
+ */
+
+#include <inttypes.h>
+
+#include <rte_malloc.h>
+
+#include "bnxt.h"
+#include "bnxt_cpr.h"
+#include "bnxt_irq.h"
+#include "bnxt_ring.h"
+#include "hsi_struct_def_dpdk.h"
+
+/*
+ * Interrupts
+ */
+
+static void bnxt_int_handler(void *param)
+{
+	struct rte_eth_dev *eth_dev = (struct rte_eth_dev *)param;
+	struct bnxt *bp = (struct bnxt *)eth_dev->data->dev_private;
+	struct bnxt_cp_ring_info *cpr = bp->def_cp_ring;
+	struct cmpl_base *cmp;
+	uint32_t raw_cons;
+	uint32_t cons;
+
+	if (cpr == NULL)
+		return;
+
+	raw_cons = cpr->cp_raw_cons;
+	while (1) {
+		if (!cpr || !cpr->cp_ring_struct)
+			return;
+
+		cons = RING_CMP(cpr->cp_ring_struct, raw_cons);
+		cmp = &cpr->cp_desc_ring[cons];
+
+		if (!CMP_VALID(cmp, raw_cons, cpr->cp_ring_struct))
+			break;
+
+		bnxt_event_hwrm_resp_handler(bp, cmp);
+		raw_cons = NEXT_RAW_CMP(raw_cons);
+	};
+
+	cpr->cp_raw_cons = raw_cons;
+	B_CP_DB_REARM(cpr, cpr->cp_raw_cons);
+}
+
+void bnxt_free_int(struct bnxt *bp)
+{
+	struct bnxt_irq *irq;
+
+	irq = bp->irq_tbl;
+	if (irq) {
+		if (irq->requested) {
+			rte_intr_disable(&bp->pdev->intr_handle);
+			rte_intr_callback_unregister(&bp->pdev->intr_handle,
+						     irq->handler,
+						     (void *)bp->eth_dev);
+			irq->requested = 0;
+		}
+		rte_free((void *)bp->irq_tbl);
+		bp->irq_tbl = NULL;
+	}
+}
+
+void bnxt_disable_int(struct bnxt *bp)
+{
+	struct bnxt_cp_ring_info *cpr = bp->def_cp_ring;
+
+	/* Only the default completion ring */
+	if (cpr != NULL && cpr->cp_doorbell != NULL)
+		B_CP_DB_DISARM(cpr);
+}
+
+void bnxt_enable_int(struct bnxt *bp)
+{
+	struct bnxt_cp_ring_info *cpr = bp->def_cp_ring;
+
+	/* Only the default completion ring */
+	if (cpr != NULL && cpr->cp_doorbell != NULL)
+		B_CP_DB_ARM(cpr);
+}
+
+int bnxt_setup_int(struct bnxt *bp)
+{
+	uint16_t total_vecs;
+	const int len = sizeof(bp->irq_tbl[0].name);
+	int i, rc = 0;
+
+	/* DPDK host only supports 1 MSI-X vector */
+	total_vecs = 1;
+	bp->irq_tbl = rte_calloc("bnxt_irq_tbl", total_vecs,
+				 sizeof(struct bnxt_irq), 0);
+	if (bp->irq_tbl) {
+		for (i = 0; i < total_vecs; i++) {
+			bp->irq_tbl[i].vector = i;
+			snprintf(bp->irq_tbl[i].name, len,
+				 "%s-%d", bp->eth_dev->device->name, i);
+			bp->irq_tbl[i].handler = bnxt_int_handler;
+		}
+	} else {
+		rc = -ENOMEM;
+		goto setup_exit;
+	}
+	return 0;
+
+setup_exit:
+	PMD_DRV_LOG(ERR, "bnxt_irq_tbl setup failed\n");
+	return rc;
+}
+
+int bnxt_request_int(struct bnxt *bp)
+{
+	int rc = 0;
+
+	struct bnxt_irq *irq = bp->irq_tbl;
+
+	rte_intr_callback_register(&bp->pdev->intr_handle, irq->handler,
+				   (void *)bp->eth_dev);
+	rte_intr_enable(&bp->pdev->intr_handle);
+
+	irq->requested = 1;
+	return rc;
+}