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authorBen Hutchings <bhutchings@solarflare.com>2009-02-27 13:07:15 +0000
committerDavid S. Miller <davem@davemloft.net>2009-03-02 03:15:04 -0800
commit3f39a5e9bff000025c2679101b4f83e4fc21dbba (patch)
treeb5a9632720383e3309e170da6c38f6468dbfd5ee /drivers/net/sfc/mdio_10g.c
parentf794fd440066ccd7d601f405f80aa514b95f15d1 (diff)
sfc: Fix reporting of PHY id
Shuffle bits of the OUI into the conventional written order. Replace PHY id component macros with functions. Zero-pad PHY id components in log messages. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/sfc/mdio_10g.c')
-rw-r--r--drivers/net/sfc/mdio_10g.c15
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/net/sfc/mdio_10g.c b/drivers/net/sfc/mdio_10g.c
index 4462fb58a3a..9f5ec3eb341 100644
--- a/drivers/net/sfc/mdio_10g.c
+++ b/drivers/net/sfc/mdio_10g.c
@@ -17,6 +17,21 @@
#include "boards.h"
#include "workarounds.h"
+unsigned mdio_id_oui(u32 id)
+{
+ unsigned oui = 0;
+ int i;
+
+ /* The bits of the OUI are designated a..x, with a=0 and b variable.
+ * In the id register c is the MSB but the OUI is conventionally
+ * written as bytes h..a, p..i, x..q. Reorder the bits accordingly. */
+ for (i = 0; i < 22; ++i)
+ if (id & (1 << (i + 10)))
+ oui |= 1 << (i ^ 7);
+
+ return oui;
+}
+
int mdio_clause45_reset_mmd(struct efx_nic *port, int mmd,
int spins, int spintime)
{