[dpdk-dev] [PATCH v2 05/30] net/dpaa: support Rx interrupt handler

[Sachin Saxena <sachin.saxena@nxp.com>]

From: Nipun Gupta <nipun.gupta@nxp.com>

This patch adds interrupt handler support for
the ethernet devices which are configured with
a dedicated portal for packet Rx
(i.e. for FQ's in push mode).

Signed-off-by: Nipun Gupta <nipun.gupta@nxp.com>
---
 drivers/bus/dpaa/base/qbman/qman_driver.c |  3 ++-
 drivers/bus/dpaa/include/fsl_qman.h       | 18 +++++++++++++-
 drivers/bus/dpaa/include/fsl_usd.h        |  2 +-
 drivers/bus/dpaa/rte_dpaa_bus.h           |  1 +
 drivers/net/dpaa/dpaa_ethdev.c            | 29 +++++++++++++++++++++--
 5 files changed, 48 insertions(+), 5 deletions(-)

diff --git a/drivers/bus/dpaa/base/qbman/qman_driver.c b/drivers/bus/dpaa/base/qbman/qman_driver.c
index 06ed814e1..acd003143 100644
--- a/drivers/bus/dpaa/base/qbman/qman_driver.c
+++ b/drivers/bus/dpaa/base/qbman/qman_driver.c
@@ -121,7 +121,7 @@ void qman_thread_irq(void)
 	out_be32(qpcfg.addr_virt[DPAA_PORTAL_CI] + 0x36C0, 0);
 }
 
-struct qman_portal *fsl_qman_fq_portal_create(void)
+struct qman_portal *fsl_qman_fq_portal_create(int *fd)
 {
 	struct qman_portal *portal = NULL;
 	struct qm_portal_config *q_pcfg;
@@ -171,6 +171,7 @@ struct qman_portal *fsl_qman_fq_portal_create(void)
 	irq_map.portal_cinh = q_map.addr.cinh;
 	process_portal_irq_map(q_fd, &irq_map);
 
+	*fd = q_fd;
 	return portal;
 err:
 	if (portal)
diff --git a/drivers/bus/dpaa/include/fsl_qman.h b/drivers/bus/dpaa/include/fsl_qman.h
index 5f13a5544..064b65aed 100644
--- a/drivers/bus/dpaa/include/fsl_qman.h
+++ b/drivers/bus/dpaa/include/fsl_qman.h
@@ -1215,6 +1215,9 @@ struct qman_fq {
 	struct qman_fq_cb cb;
 
 	u32 fqid_le;
+	u32 fqid;
+
+	int q_fd;
 	u16 ch_id;
 	u8 cgr_groupid;
 	u8 is_static:4;
@@ -1231,7 +1234,6 @@ struct qman_fq {
 	volatile unsigned long flags;
 
 	enum qman_fq_state state;
-	u32 fqid;
 	spinlock_t fqlock;
 
 	struct rb_node node;
@@ -1333,6 +1335,13 @@ u32 qman_portal_dequeue(struct rte_event ev[], unsigned int poll_limit,
  */
 int qman_irqsource_add(u32 bits);
 
+/**
+ * qman_fq_portal_irqsource_add - samilar to qman_irqsource_add, but it
+ * takes portal (fq specific) as input rather than using the thread affined
+ * portal.
+ */
+int qman_fq_portal_irqsource_add(struct qman_portal *p, u32 bits);
+
 /**
  * qman_irqsource_remove - remove processing sources from being interrupt-driven
  * @bits: bitmask of QM_PIRQ_**I processing sources
@@ -1343,6 +1352,13 @@ int qman_irqsource_add(u32 bits);
  */
 int qman_irqsource_remove(u32 bits);
 
+/**
+ * qman_fq_portal_irqsource_remove - similar to qman_irqsource_remove, but it
+ * takes portal (fq specific) as input rather than using the thread affined
+ * portal.
+ */
+int qman_fq_portal_irqsource_remove(struct qman_portal *p, u32 bits);
+
 /**
  * qman_affine_channel - return the channel ID of an portal
  * @cpu: the cpu whose affine portal is the subject of the query
diff --git a/drivers/bus/dpaa/include/fsl_usd.h b/drivers/bus/dpaa/include/fsl_usd.h
index ea7be38af..a407e2b22 100644
--- a/drivers/bus/dpaa/include/fsl_usd.h
+++ b/drivers/bus/dpaa/include/fsl_usd.h
@@ -75,7 +75,7 @@ int qman_global_init(void);
 int bman_global_init(void);
 
 /* Direct portal create and destroy */
-struct qman_portal *fsl_qman_fq_portal_create(void);
+struct qman_portal *fsl_qman_fq_portal_create(int *fd);
 int fsl_qman_fq_portal_destroy(struct qman_portal *qp);
 int fsl_qman_fq_portal_init(struct qman_portal *qp);
 
diff --git a/drivers/bus/dpaa/rte_dpaa_bus.h b/drivers/bus/dpaa/rte_dpaa_bus.h
index 554a56f2e..9601aebdd 100644
--- a/drivers/bus/dpaa/rte_dpaa_bus.h
+++ b/drivers/bus/dpaa/rte_dpaa_bus.h
@@ -75,6 +75,7 @@ struct rte_dpaa_device {
 	};
 	struct rte_dpaa_driver *driver;
 	struct dpaa_device_id id;
+	struct rte_intr_handle intr_handle;
 	enum rte_dpaa_type device_type; /**< Ethernet or crypto type device */
 	char name[RTE_ETH_NAME_MAX_LEN];
 };
diff --git a/drivers/net/dpaa/dpaa_ethdev.c b/drivers/net/dpaa/dpaa_ethdev.c
index 4e2c9471e..1934f85ae 100644
--- a/drivers/net/dpaa/dpaa_ethdev.c
+++ b/drivers/net/dpaa/dpaa_ethdev.c
@@ -628,8 +628,10 @@ int dpaa_eth_rx_queue_setup(struct rte_eth_dev *dev, uint16_t queue_idx,
 		fman_if_get_sg_enable(dpaa_intf->fif),
 		dev->data->dev_conf.rxmode.max_rx_pkt_len);
 	/* checking if push mode only, no error check for now */
-	if (dpaa_push_mode_max_queue > dpaa_push_queue_idx) {
+	if (!rxq->is_static &&
+	    dpaa_push_mode_max_queue > dpaa_push_queue_idx) {
 		struct qman_portal *qp;
+		int q_fd;
 
 		dpaa_push_queue_idx++;
 		opts.we_mask = QM_INITFQ_WE_FQCTRL | QM_INITFQ_WE_CONTEXTA;
@@ -676,12 +678,35 @@ int dpaa_eth_rx_queue_setup(struct rte_eth_dev *dev, uint16_t queue_idx,
 		rxq->is_static = true;
 
 		/* Allocate qman specific portals */
-		qp = fsl_qman_fq_portal_create();
+		qp = fsl_qman_fq_portal_create(&q_fd);
 		if (!qp) {
 			DPAA_PMD_ERR("Unable to alloc fq portal");
 			return -1;
 		}
 		rxq->qp = qp;
+
+		/* Set up the device interrupt handler */
+		if (!dev->intr_handle) {
+			struct rte_dpaa_device *dpaa_dev;
+			struct rte_device *rdev = dev->device;
+
+			dpaa_dev = container_of(rdev, struct rte_dpaa_device,
+						device);
+			dev->intr_handle = &dpaa_dev->intr_handle;
+			dev->intr_handle->intr_vec = rte_zmalloc(NULL,
+					dpaa_push_mode_max_queue, 0);
+			if (!dev->intr_handle->intr_vec) {
+				DPAA_PMD_ERR("intr_vec alloc failed");
+				return -ENOMEM;
+			}
+			dev->intr_handle->nb_efd = dpaa_push_mode_max_queue;
+			dev->intr_handle->max_intr = dpaa_push_mode_max_queue;
+		}
+
+		dev->intr_handle->type = RTE_INTR_HANDLE_EXT;
+		dev->intr_handle->intr_vec[queue_idx] = queue_idx + 1;
+		dev->intr_handle->efds[queue_idx] = q_fd;
+		rxq->q_fd = q_fd;
 	}
 	rxq->bp_array = rte_dpaa_bpid_info;
 	dev->data->rx_queues[queue_idx] = rxq;
-- 
2.17.1