Release 4.16 drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_utils_fw2x.c
/*
* aQuantia Corporation Network Driver
* Copyright (C) 2014-2017 aQuantia Corporation. All rights reserved
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*/
/* File hw_atl_utils_fw2x.c: Definition of firmware 2.x functions for
* Atlantic hardware abstraction layer.
*/
#include "../aq_hw.h"
#include "../aq_hw_utils.h"
#include "../aq_pci_func.h"
#include "../aq_ring.h"
#include "../aq_vec.h"
#include "hw_atl_utils.h"
#include "hw_atl_llh.h"
#define HW_ATL_FW2X_MPI_EFUSE_ADDR 0x364
#define HW_ATL_FW2X_MPI_MBOX_ADDR 0x360
#define HW_ATL_FW2X_MPI_CONTROL_ADDR 0x368
#define HW_ATL_FW2X_MPI_CONTROL2_ADDR 0x36C
#define HW_ATL_FW2X_MPI_STATE_ADDR 0x370
#define HW_ATL_FW2X_MPI_STATE2_ADDR 0x374
static int aq_fw2x_init(struct aq_hw_s *self)
{
int err = 0;
/* check 10 times by 1ms */
AQ_HW_WAIT_FOR(0U != (self->mbox_addr =
aq_hw_read_reg(self, HW_ATL_FW2X_MPI_MBOX_ADDR)),
1000U, 10U);
return err;
}
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static enum hw_atl_fw2x_rate link_speed_mask_2fw2x_ratemask(u32 speed)
{
enum hw_atl_fw2x_rate rate = 0;
if (speed & AQ_NIC_RATE_10G)
rate |= FW2X_RATE_10G;
if (speed & AQ_NIC_RATE_5G)
rate |= FW2X_RATE_5G;
if (speed & AQ_NIC_RATE_5GSR)
rate |= FW2X_RATE_5G;
if (speed & AQ_NIC_RATE_2GS)
rate |= FW2X_RATE_2G5;
if (speed & AQ_NIC_RATE_1G)
rate |= FW2X_RATE_1G;
if (speed & AQ_NIC_RATE_100M)
rate |= FW2X_RATE_100M;
return rate;
}
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static int aq_fw2x_set_link_speed(struct aq_hw_s *self, u32 speed)
{
u32 val = link_speed_mask_2fw2x_ratemask(speed);
aq_hw_write_reg(self, HW_ATL_FW2X_MPI_CONTROL_ADDR, val);
return 0;
}
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static int aq_fw2x_set_state(struct aq_hw_s *self,
enum hal_atl_utils_fw_state_e state)
{
/* No explicit state in 2x fw */
return 0;
}
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static int aq_fw2x_update_link_status(struct aq_hw_s *self)
{
u32 mpi_state = aq_hw_read_reg(self, HW_ATL_FW2X_MPI_STATE_ADDR);
u32 speed = mpi_state & (FW2X_RATE_100M | FW2X_RATE_1G |
FW2X_RATE_2G5 | FW2X_RATE_5G | FW2X_RATE_10G);
struct aq_hw_link_status_s *link_status = &self->aq_link_status;
if (speed) {
if (speed & FW2X_RATE_10G)
link_status->mbps = 10000;
else if (speed & FW2X_RATE_5G)
link_status->mbps = 5000;
else if (speed & FW2X_RATE_2G5)
link_status->mbps = 2500;
else if (speed & FW2X_RATE_1G)
link_status->mbps = 1000;
else if (speed & FW2X_RATE_100M)
link_status->mbps = 100;
else
link_status->mbps = 10000;
} else {
link_status->mbps = 0;
}
return 0;
}
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int aq_fw2x_get_mac_permanent(struct aq_hw_s *self, u8 *mac)
{
int err = 0;
u32 h = 0U;
u32 l = 0U;
u32 mac_addr[2] = { 0 };
u32 efuse_addr = aq_hw_read_reg(self, HW_ATL_FW2X_MPI_EFUSE_ADDR);
if (efuse_addr != 0) {
err = hw_atl_utils_fw_downld_dwords(self,
efuse_addr + (40U * 4U),
mac_addr,
ARRAY_SIZE(mac_addr));
if (err)
return err;
mac_addr[0] = __swab32(mac_addr[0]);
mac_addr[1] = __swab32(mac_addr[1]);
}
ether_addr_copy(mac, (u8 *)mac_addr);
if ((mac[0] & 0x01U) || ((mac[0] | mac[1] | mac[2]) == 0x00U)) {
unsigned int rnd = 0;
get_random_bytes(&rnd, sizeof(unsigned int));
l = 0xE3000000U
| (0xFFFFU & rnd)
| (0x00 << 16);
h = 0x8001300EU;
mac[5] = (u8)(0xFFU & l);
l >>= 8;
mac[4] = (u8)(0xFFU & l);
l >>= 8;
mac[3] = (u8)(0xFFU & l);
l >>= 8;
mac[2] = (u8)(0xFFU & l);
mac[1] = (u8)(0xFFU & h);
h >>= 8;
mac[0] = (u8)(0xFFU & h);
}
return err;
}
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static int aq_fw2x_update_stats(struct aq_hw_s *self)
{
int err = 0;
u32 mpi_opts = aq_hw_read_reg(self, HW_ATL_FW2X_MPI_CONTROL2_ADDR);
u32 orig_stats_val = mpi_opts & BIT(CAPS_HI_STATISTICS);
/* Toggle statistics bit for FW to update */
mpi_opts = mpi_opts ^ BIT(CAPS_HI_STATISTICS);
aq_hw_write_reg(self, HW_ATL_FW2X_MPI_CONTROL2_ADDR, mpi_opts);
/* Wait FW to report back */
AQ_HW_WAIT_FOR(orig_stats_val !=
(aq_hw_read_reg(self, HW_ATL_FW2X_MPI_STATE2_ADDR) &
BIT(CAPS_HI_STATISTICS)),
1U, 10000U);
if (err)
return err;
return hw_atl_utils_update_stats(self);
}
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const struct aq_fw_ops aq_fw_2x_ops = {
.init = aq_fw2x_init,
.reset = NULL,
.get_mac_permanent = aq_fw2x_get_mac_permanent,
.set_link_speed = aq_fw2x_set_link_speed,
.set_state = aq_fw2x_set_state,
.update_link_status = aq_fw2x_update_link_status,
.update_stats = aq_fw2x_update_stats,
};
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| Total | 790 | 100.00% | 1 | 100.00% |
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