New driver "sfc" for Solarstorm SFC4000 controller.

The driver supports the 10Xpress PHY and XFP modules on our reference
designs SFE4001 and SFE4002 and the SMC models SMC10GPCIe-XFP and
SMC10GPCIe-10BT.

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>

1 files changed, 62 insertions, 0 deletions

diff --git a/drivers/net/sfc/xenpack.h b/drivers/net/sfc/xenpack.h
new file mode 100644
index 000000000000..b0d1f225b70a
--- /dev/null
+++ b/drivers/net/sfc/xenpack.h
@@ -0,0 +1,62 @@
+/****************************************************************************
+ * Driver for Solarflare Solarstorm network controllers and boards
+ * Copyright 2006 Solarflare Communications Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation, incorporated herein by reference.
+ */
+
+#ifndef EFX_XENPACK_H
+#define EFX_XENPACK_H
+
+/* Exported functions from Xenpack standard PHY control */
+
+#include "mdio_10g.h"
+
+/****************************************************************************/
+/* XENPACK MDIO register extensions */
+#define MDIO_XP_LASI_RX_CTRL	(0x9000)
+#define MDIO_XP_LASI_TX_CTRL	(0x9001)
+#define MDIO_XP_LASI_CTRL	(0x9002)
+#define MDIO_XP_LASI_RX_STAT	(0x9003)
+#define MDIO_XP_LASI_TX_STAT	(0x9004)
+#define MDIO_XP_LASI_STAT	(0x9005)
+
+/* Control/Status bits */
+#define XP_LASI_LS_ALARM	(1 << 0)
+#define XP_LASI_TX_ALARM	(1 << 1)
+#define XP_LASI_RX_ALARM	(1 << 2)
+/* These two are Quake vendor extensions to the standard XENPACK defines */
+#define XP_LASI_LS_INTB		(1 << 3)
+#define XP_LASI_TEST		(1 << 7)
+
+/* Enable LASI interrupts for PHY */
+static inline void xenpack_enable_lasi_irqs(struct efx_nic *efx)
+{
+	int reg;
+	int phy_id = efx->mii.phy_id;
+	/* Read to clear LASI status register */
+	reg = mdio_clause45_read(efx, phy_id, MDIO_MMD_PMAPMD,
+				 MDIO_XP_LASI_STAT);
+
+	mdio_clause45_write(efx, phy_id, MDIO_MMD_PMAPMD,
+			    MDIO_XP_LASI_CTRL, XP_LASI_LS_ALARM);
+}
+
+/* Read the LASI interrupt status to clear the interrupt. */
+static inline int xenpack_clear_lasi_irqs(struct efx_nic *efx)
+{
+	/* Read to clear link status alarm */
+	return mdio_clause45_read(efx, efx->mii.phy_id,
+				  MDIO_MMD_PMAPMD, MDIO_XP_LASI_STAT);
+}
+
+/* Turn off LASI interrupts */
+static inline void xenpack_disable_lasi_irqs(struct efx_nic *efx)
+{
+	mdio_clause45_write(efx, efx->mii.phy_id, MDIO_MMD_PMAPMD,
+			    MDIO_XP_LASI_CTRL, 0);
+}
+
+#endif /* EFX_XENPACK_H */