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From: Srikanth Kaka <srikanth.k@oneconvergence.com>
To: sthemmin@microsoft.com,
longli@microsoft.com
Cc: dev@dpdk.org, vag.singh@oneconvergence.com, avelu@juniper.net,
Srikanth Kaka <srikanth.k@oneconvergence.com>
Subject: [PATCH v3 14/15] bus/vmbus: add APIs to mask/unmask IRQs
Date: Thu, 17 Feb 2022 21:36:12 +0530
Message-Id: <20220217160613.70161-15-srikanth.k@oneconvergence.com>
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the IRQ masking/unmasking APIs use the HV_UIO driver's
read and write CBs for their work.
Signed-off-by: Srikanth Kaka <srikanth.k@oneconvergence.com>
Signed-off-by: Vag Singh <vag.singh@oneconvergence.com>
Signed-off-by: Anand Thulasiram <avelu@juniper.net>
---
drivers/bus/vmbus/freebsd/vmbus_bus.c | 15 ++++++++++++++
drivers/bus/vmbus/freebsd/vmbus_uio.c | 28 +++++++++++++++++++++++++++
2 files changed, 43 insertions(+)
diff --git a/drivers/bus/vmbus/freebsd/vmbus_bus.c b/drivers/bus/vmbus/freebsd/vmbus_bus.c
index fa0f4883f7..b275723bd3 100644
--- a/drivers/bus/vmbus/freebsd/vmbus_bus.c
+++ b/drivers/bus/vmbus/freebsd/vmbus_bus.c
@@ -265,3 +265,18 @@ rte_vmbus_scan(void)
error:
return -1;
}
+
+void rte_vmbus_irq_mask(struct rte_vmbus_device *device)
+{
+ vmbus_uio_irq_control(device, 1);
+}
+
+void rte_vmbus_irq_unmask(struct rte_vmbus_device *device)
+{
+ vmbus_uio_irq_control(device, 0);
+}
+
+int rte_vmbus_irq_read(struct rte_vmbus_device *device)
+{
+ return vmbus_uio_irq_read(device);
+}
diff --git a/drivers/bus/vmbus/freebsd/vmbus_uio.c b/drivers/bus/vmbus/freebsd/vmbus_uio.c
index ca6f5fac59..7eb8b73e29 100644
--- a/drivers/bus/vmbus/freebsd/vmbus_uio.c
+++ b/drivers/bus/vmbus/freebsd/vmbus_uio.c
@@ -38,6 +38,34 @@ static const char *map_names[VMBUS_MAX_RESOURCE] = {
[HV_SEND_BUF_MAP] = "send_buf",
};
+/* Control interrupts */
+void vmbus_uio_irq_control(struct rte_vmbus_device *dev, int32_t onoff)
+{
+ if (write(dev->intr_handle.fd, &onoff, sizeof(onoff)) < 0) {
+ VMBUS_LOG(ERR, "cannot write to %d:%s",
+ dev->intr_handle.fd, strerror(errno));
+ }
+}
+
+int vmbus_uio_irq_read(struct rte_vmbus_device *dev)
+{
+ int32_t count;
+ int cc;
+
+ cc = read(dev->intr_handle.fd, &count, sizeof(count));
+ if (cc < (int)sizeof(count)) {
+ if (cc < 0) {
+ VMBUS_LOG(ERR, "IRQ read failed %s",
+ strerror(errno));
+ return -errno;
+ }
+ VMBUS_LOG(ERR, "can't read IRQ count");
+ return -EINVAL;
+ }
+
+ return count;
+}
+
void
vmbus_uio_free_resource(struct rte_vmbus_device *dev,
struct mapped_vmbus_resource *uio_res)
--
2.30.2