tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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linux
1/****************************************************************************
2 * Driver for Solarflare Solarstorm network controllers and boards
3 * Copyright 2006 Solarflare Communications Inc.
4 *
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 as published
7 * by the Free Software Foundation, incorporated herein by reference.
8 */
9
10#ifndef EFX_XENPACK_H
11#define EFX_XENPACK_H
12
13/* Exported functions from Xenpack standard PHY control */
14
15#include "mdio_10g.h"
16
17/****************************************************************************/
18/* XENPACK MDIO register extensions */
19#define MDIO_XP_LASI_RX_CTRL (0x9000)
20#define MDIO_XP_LASI_TX_CTRL (0x9001)
21#define MDIO_XP_LASI_CTRL (0x9002)
22#define MDIO_XP_LASI_RX_STAT (0x9003)
23#define MDIO_XP_LASI_TX_STAT (0x9004)
24#define MDIO_XP_LASI_STAT (0x9005)
25
26/* Control/Status bits */
27#define XP_LASI_LS_ALARM (1 << 0)
28#define XP_LASI_TX_ALARM (1 << 1)
29#define XP_LASI_RX_ALARM (1 << 2)
30/* These two are Quake vendor extensions to the standard XENPACK defines */
31#define XP_LASI_LS_INTB (1 << 3)
32#define XP_LASI_TEST (1 << 7)
33
34/* Enable LASI interrupts for PHY */
35static inline void xenpack_enable_lasi_irqs(struct efx_nic *efx)
36{
37 int reg;
38 int phy_id = efx->mii.phy_id;
39 /* Read to clear LASI status register */
40 reg = mdio_clause45_read(efx, phy_id, MDIO_MMD_PMAPMD,
41 MDIO_XP_LASI_STAT);
42
43 mdio_clause45_write(efx, phy_id, MDIO_MMD_PMAPMD,
44 MDIO_XP_LASI_CTRL, XP_LASI_LS_ALARM);
45}
46
47/* Read the LASI interrupt status to clear the interrupt. */
48static inline int xenpack_clear_lasi_irqs(struct efx_nic *efx)
49{
50 /* Read to clear link status alarm */
51 return mdio_clause45_read(efx, efx->mii.phy_id,
52 MDIO_MMD_PMAPMD, MDIO_XP_LASI_STAT);
53}
54
55/* Turn off LASI interrupts */
56static inline void xenpack_disable_lasi_irqs(struct efx_nic *efx)
57{
58 mdio_clause45_write(efx, efx->mii.phy_id, MDIO_MMD_PMAPMD,
59 MDIO_XP_LASI_CTRL, 0);
60}
61
62#endif /* EFX_XENPACK_H */