[PATCH 07/10] raw/cnxk_gpio: support dequeuing buffers
From: Tomasz Duszynski <hidden>
Date: 2021-11-17 00:23:31
Subsystem:
the rest · Maintainer:
Linus Torvalds
Add support for dequeuing buffers. Signed-off-by: Tomasz Duszynski <redacted> --- drivers/raw/cnxk_gpio/cnxk_gpio.c | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+)
diff --git a/drivers/raw/cnxk_gpio/cnxk_gpio.c b/drivers/raw/cnxk_gpio/cnxk_gpio.c
index c08ccdfbb8..244a625822 100644
--- a/drivers/raw/cnxk_gpio/cnxk_gpio.c
+++ b/drivers/raw/cnxk_gpio/cnxk_gpio.c@@ -307,8 +307,34 @@ 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 = { .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,
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2.25.1