raw/cnxk_gpio: dequeue buffers

Add support for dequeuing buffers.

Signed-off-by: Tomasz Duszynski <tduszynski@marvell.com>

diff --git a/drivers/raw/cnxk_gpio/cnxk_gpio.c b/drivers/raw/cnxk_gpio/cnxk_gpio.c
index 6f3795d..46f9e63 100644 (file)
--- a/drivers/raw/cnxk_gpio/cnxk_gpio.c
+++ b/drivers/raw/cnxk_gpio/cnxk_gpio.c
@@ -320,9 +320,35 @@ cnxk_gpio_enqueue_bufs(struct rte_rawdev *dev, struct rte_rawdev_buf **buffers,
        return 1;
 }
 
+static int
+cnxk_gpio_dequeue_bufs(struct rte_rawdev *dev, struct rte_rawdev_buf **buffers,
+                      unsigned int count, rte_rawdev_obj_t context)
+{
+       struct cnxk_gpiochip *gpiochip = dev->dev_private;
+       unsigned int queue = (size_t)context;
+       struct cnxk_gpio *gpio;
+
+       if (count == 0)
+               return 0;
+
+       gpio = cnxk_gpio_lookup(gpiochip, queue);
+       if (!gpio)
+               return -ENODEV;
+
+       if (gpio->rsp) {
+               buffers[0]->buf_addr = gpio->rsp;
+               gpio->rsp = NULL;
+
+               return 1;
+       }
+
+       return 0;
+}
+
 static const struct rte_rawdev_ops cnxk_gpio_rawdev_ops = {
        .dev_close = cnxk_gpio_dev_close,
        .enqueue_bufs = cnxk_gpio_enqueue_bufs,
+       .dequeue_bufs = cnxk_gpio_dequeue_bufs,
        .queue_def_conf = cnxk_gpio_queue_def_conf,
        .queue_count = cnxk_gpio_queue_count,
        .queue_setup = cnxk_gpio_queue_setup,