On Wed, Nov 29, 2017 at 09:37:15PM +0530, Souptick Joarder wrote:

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+static int bgx_port_sgmii_set_link_speed(struct bgx_port_priv *priv, struct port_status status)
+{
+       u64     data;
+       u64     prtx;
+       u64     miscx;
+       int     timeout;
+

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+
+       switch (status.speed) {
+       case 10:

In my opinion, instead of hard coding the value, is it fine to use ENUM ?

   Similar comments applicable in other places where hard coded values are used.

10 means 10M right?  That's not really a magic number.  It's fine.

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+static int bgx_port_init_xaui_link(struct bgx_port_priv *priv)
+{

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+
+               if (use_ber) {
+                       timeout = 10000;
+                       do {
+                               data =
+                               oct_csr_read(BGX_SPU_BR_STATUS1(priv->node, priv->bgx, priv->index));
+                               if (data & BIT(0))
+                                       break;
+                               timeout--;
+                               udelay(1);
+                       } while (timeout);

In my opinion, it's better to implement similar kind of loops inside macros.

I don't understand what you mean here.  For what it's worth this code
seems clear enough to me (except for the bad indenting of oct_csr_read().

It should be something like:
				data = oct_csr_read(BGX_SPU_BR_STATUS1(priv->node,
						priv->bgx, priv->index));

That's over the 80 char limit but so is the original code.

regards,
dan carpenter