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Subject[PATCH v2 2/5] staging: fsl-dpaa2/eth: Split function
Date
From: Ioana Radulescu <ruxandra.radulescu@nxp.com>

Since setup_dpni() became a bit too long, move the buffer layout
configuration to a separate function.

Signed-off-by: Ioana Radulescu <ruxandra.radulescu@nxp.com>
Signed-off-by: Bogdan Purcareata <bogdan.purcareata@nxp.com>
---
v1 -> v2:
- no changes

drivers/staging/fsl-dpaa2/ethernet/dpaa2-eth.c | 79 +++++++++++++++-----------
1 file changed, 45 insertions(+), 34 deletions(-)

diff --git a/drivers/staging/fsl-dpaa2/ethernet/dpaa2-eth.c b/drivers/staging/fsl-dpaa2/ethernet/dpaa2-eth.c
index 5d2bd18..92faaaf 100644
--- a/drivers/staging/fsl-dpaa2/ethernet/dpaa2-eth.c
+++ b/drivers/staging/fsl-dpaa2/ethernet/dpaa2-eth.c
@@ -1776,42 +1776,12 @@ static void free_dpbp(struct dpaa2_eth_priv *priv)
fsl_mc_object_free(priv->dpbp_dev);
}

-/* Configure the DPNI object this interface is associated with */
-static int setup_dpni(struct fsl_mc_device *ls_dev)
+static int set_buffer_layout(struct dpaa2_eth_priv *priv)
{
- struct device *dev = &ls_dev->dev;
- struct dpaa2_eth_priv *priv;
- struct net_device *net_dev;
+ struct device *dev = priv->net_dev->dev.parent;
struct dpni_buffer_layout buf_layout = {0};
int err;

- net_dev = dev_get_drvdata(dev);
- priv = netdev_priv(net_dev);
-
- /* get a handle for the DPNI object */
- err = dpni_open(priv->mc_io, 0, ls_dev->obj_desc.id, &priv->mc_token);
- if (err) {
- dev_err(dev, "dpni_open() failed\n");
- return err;
- }
-
- ls_dev->mc_io = priv->mc_io;
- ls_dev->mc_handle = priv->mc_token;
-
- err = dpni_reset(priv->mc_io, 0, priv->mc_token);
- if (err) {
- dev_err(dev, "dpni_reset() failed\n");
- goto close;
- }
-
- err = dpni_get_attributes(priv->mc_io, 0, priv->mc_token,
- &priv->dpni_attrs);
- if (err) {
- dev_err(dev, "dpni_get_attributes() failed (err=%d)\n", err);
- goto close;
- }
-
- /* Configure buffer layouts */
/* rx buffer */
buf_layout.pass_parser_result = true;
buf_layout.pass_frame_status = true;
@@ -1825,7 +1795,7 @@ static int setup_dpni(struct fsl_mc_device *ls_dev)
DPNI_QUEUE_RX, &buf_layout);
if (err) {
dev_err(dev, "dpni_set_buffer_layout(RX) failed\n");
- goto close;
+ return err;
}

/* tx buffer */
@@ -1835,7 +1805,7 @@ static int setup_dpni(struct fsl_mc_device *ls_dev)
DPNI_QUEUE_TX, &buf_layout);
if (err) {
dev_err(dev, "dpni_set_buffer_layout(TX) failed\n");
- goto close;
+ return err;
}

/* tx-confirm buffer */
@@ -1844,9 +1814,50 @@ static int setup_dpni(struct fsl_mc_device *ls_dev)
DPNI_QUEUE_TX_CONFIRM, &buf_layout);
if (err) {
dev_err(dev, "dpni_set_buffer_layout(TX_CONF) failed\n");
+ return err;
+ }
+
+ return 0;
+}
+
+/* Configure the DPNI object this interface is associated with */
+static int setup_dpni(struct fsl_mc_device *ls_dev)
+{
+ struct device *dev = &ls_dev->dev;
+ struct dpaa2_eth_priv *priv;
+ struct net_device *net_dev;
+ int err;
+
+ net_dev = dev_get_drvdata(dev);
+ priv = netdev_priv(net_dev);
+
+ /* get a handle for the DPNI object */
+ err = dpni_open(priv->mc_io, 0, ls_dev->obj_desc.id, &priv->mc_token);
+ if (err) {
+ dev_err(dev, "dpni_open() failed\n");
+ return err;
+ }
+
+ ls_dev->mc_io = priv->mc_io;
+ ls_dev->mc_handle = priv->mc_token;
+
+ err = dpni_reset(priv->mc_io, 0, priv->mc_token);
+ if (err) {
+ dev_err(dev, "dpni_reset() failed\n");
goto close;
}

+ err = dpni_get_attributes(priv->mc_io, 0, priv->mc_token,
+ &priv->dpni_attrs);
+ if (err) {
+ dev_err(dev, "dpni_get_attributes() failed (err=%d)\n", err);
+ goto close;
+ }
+
+ err = set_buffer_layout(priv);
+ if (err)
+ goto close;
+
/* Now that we've set our tx buffer layout, retrieve the minimum
* required tx data offset.
*/
--
2.7.4
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