Contributors: 8
| Author |
Tokens |
Token Proportion |
Commits |
Commit Proportion |
| Ben Hutchings |
393 |
78.29% |
6 |
31.58% |
| Alex Maftei (amaftei) |
61 |
12.15% |
2 |
10.53% |
| Edward Cree |
34 |
6.77% |
5 |
26.32% |
| Steve Hodgson |
7 |
1.39% |
2 |
10.53% |
| Linus Torvalds (pre-git) |
2 |
0.40% |
1 |
5.26% |
| Thomas Gleixner |
2 |
0.40% |
1 |
5.26% |
| Jonathan Cooper |
2 |
0.40% |
1 |
5.26% |
| Linus Torvalds |
1 |
0.20% |
1 |
5.26% |
| Total |
502 |
|
19 |
|
// SPDX-License-Identifier: GPL-2.0-only
/****************************************************************************
* Driver for Solarflare network controllers and boards
* Copyright 2009-2013 Solarflare Communications Inc.
*/
/*
* Driver for PHY related operations via MCDI.
*/
#include <linux/slab.h>
#include "efx.h"
#include "mcdi_port.h"
#include "mcdi.h"
#include "mcdi_pcol.h"
#include "nic.h"
#include "selftest.h"
#include "mcdi_port_common.h"
static int efx_mcdi_mdio_read(struct net_device *net_dev,
int prtad, int devad, u16 addr)
{
struct efx_nic *efx = efx_netdev_priv(net_dev);
MCDI_DECLARE_BUF(inbuf, MC_CMD_MDIO_READ_IN_LEN);
MCDI_DECLARE_BUF(outbuf, MC_CMD_MDIO_READ_OUT_LEN);
size_t outlen;
int rc;
MCDI_SET_DWORD(inbuf, MDIO_READ_IN_BUS, efx->mdio_bus);
MCDI_SET_DWORD(inbuf, MDIO_READ_IN_PRTAD, prtad);
MCDI_SET_DWORD(inbuf, MDIO_READ_IN_DEVAD, devad);
MCDI_SET_DWORD(inbuf, MDIO_READ_IN_ADDR, addr);
rc = efx_mcdi_rpc(efx, MC_CMD_MDIO_READ, inbuf, sizeof(inbuf),
outbuf, sizeof(outbuf), &outlen);
if (rc)
return rc;
if (MCDI_DWORD(outbuf, MDIO_READ_OUT_STATUS) !=
MC_CMD_MDIO_STATUS_GOOD)
return -EIO;
return (u16)MCDI_DWORD(outbuf, MDIO_READ_OUT_VALUE);
}
static int efx_mcdi_mdio_write(struct net_device *net_dev,
int prtad, int devad, u16 addr, u16 value)
{
struct efx_nic *efx = efx_netdev_priv(net_dev);
MCDI_DECLARE_BUF(inbuf, MC_CMD_MDIO_WRITE_IN_LEN);
MCDI_DECLARE_BUF(outbuf, MC_CMD_MDIO_WRITE_OUT_LEN);
size_t outlen;
int rc;
MCDI_SET_DWORD(inbuf, MDIO_WRITE_IN_BUS, efx->mdio_bus);
MCDI_SET_DWORD(inbuf, MDIO_WRITE_IN_PRTAD, prtad);
MCDI_SET_DWORD(inbuf, MDIO_WRITE_IN_DEVAD, devad);
MCDI_SET_DWORD(inbuf, MDIO_WRITE_IN_ADDR, addr);
MCDI_SET_DWORD(inbuf, MDIO_WRITE_IN_VALUE, value);
rc = efx_mcdi_rpc(efx, MC_CMD_MDIO_WRITE, inbuf, sizeof(inbuf),
outbuf, sizeof(outbuf), &outlen);
if (rc)
return rc;
if (MCDI_DWORD(outbuf, MDIO_WRITE_OUT_STATUS) !=
MC_CMD_MDIO_STATUS_GOOD)
return -EIO;
return 0;
}
u32 efx_mcdi_phy_get_caps(struct efx_nic *efx)
{
struct efx_mcdi_phy_data *phy_data = efx->phy_data;
return phy_data->supported_cap;
}
bool efx_mcdi_mac_check_fault(struct efx_nic *efx)
{
MCDI_DECLARE_BUF(outbuf, MC_CMD_GET_LINK_OUT_LEN);
size_t outlength;
int rc;
BUILD_BUG_ON(MC_CMD_GET_LINK_IN_LEN != 0);
rc = efx_mcdi_rpc(efx, MC_CMD_GET_LINK, NULL, 0,
outbuf, sizeof(outbuf), &outlength);
if (rc)
return true;
return MCDI_DWORD(outbuf, GET_LINK_OUT_MAC_FAULT) != 0;
}
int efx_mcdi_port_probe(struct efx_nic *efx)
{
int rc;
/* Set up MDIO structure for PHY */
efx->mdio.mode_support = MDIO_SUPPORTS_C45 | MDIO_EMULATE_C22;
efx->mdio.mdio_read = efx_mcdi_mdio_read;
efx->mdio.mdio_write = efx_mcdi_mdio_write;
/* Fill out MDIO structure, loopback modes, and initial link state */
rc = efx_mcdi_phy_probe(efx);
if (rc != 0)
return rc;
return efx_mcdi_mac_init_stats(efx);
}
void efx_mcdi_port_remove(struct efx_nic *efx)
{
efx_mcdi_phy_remove(efx);
efx_mcdi_mac_fini_stats(efx);
}