raw/cnxk_bphy: support CGX dequeue operation

Add support for dequeueing responses to previously
enqueued messages.

Signed-off-by: Tomasz Duszynski <tduszynski@marvell.com>
Signed-off-by: Jakub Palider <jpalider@marvell.com>
Reviewed-by: Jerin Jacob <jerinj@marvell.com>

diff --git a/drivers/raw/cnxk_bphy/cnxk_bphy_cgx.c b/drivers/raw/cnxk_bphy/cnxk_bphy_cgx.c
index 6375144..a8eafae 100644 (file)
--- a/drivers/raw/cnxk_bphy/cnxk_bphy_cgx.c
+++ b/drivers/raw/cnxk_bphy/cnxk_bphy_cgx.c
@@ -157,6 +157,32 @@ cnxk_bphy_cgx_enqueue_bufs(struct rte_rawdev *dev,
        return 1;
 }
 
+static int
+cnxk_bphy_cgx_dequeue_bufs(struct rte_rawdev *dev,
+                          struct rte_rawdev_buf **buffers, unsigned int count,
+                          rte_rawdev_obj_t context)
+{
+       struct cnxk_bphy_cgx *cgx = dev->dev_private;
+       unsigned int queue = (size_t)context;
+       struct cnxk_bphy_cgx_queue *qp;
+
+       if (queue >= cgx->num_queues)
+               return -EINVAL;
+
+       if (count == 0)
+               return 0;
+
+       qp = &cgx->queues[queue];
+       if (qp->rsp) {
+               buffers[0]->buf_addr = qp->rsp;
+               qp->rsp = NULL;
+
+               return 1;
+       }
+
+       return 0;
+}
+
 static uint16_t
 cnxk_bphy_cgx_queue_count(struct rte_rawdev *dev)
 {
@@ -168,6 +194,7 @@ cnxk_bphy_cgx_queue_count(struct rte_rawdev *dev)
 static const struct rte_rawdev_ops cnxk_bphy_cgx_rawdev_ops = {
        .queue_def_conf = cnxk_bphy_cgx_queue_def_conf,
        .enqueue_bufs = cnxk_bphy_cgx_enqueue_bufs,
+       .dequeue_bufs = cnxk_bphy_cgx_dequeue_bufs,
        .queue_count = cnxk_bphy_cgx_queue_count,
 };