From b655212bbe002759e81985d2c93b7d7b6f4c96b9 Mon Sep 17 00:00:00 2001 From: Tomasz Duszynski Date: Thu, 17 Feb 2022 12:09:20 +0100 Subject: [PATCH] raw/cnxk_gpio: dequeue buffers Add support for dequeuing buffers. Signed-off-by: Tomasz Duszynski --- 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 6f3795df41..46f9e63dd7 100644 --- 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, -- 2.20.1