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Commit a57d3929 authored by Igor Russkikh's avatar Igor Russkikh Committed by David S. Miller
Browse files

net: aquantia: Introduce support for new firmware on AQC cards



This defines fw2x operations table and corresponding methods.
Some of the functions are being shared with 1.x firmware

Signed-off-by: default avatarIgor Russkikh <igor.russkikh@aquantia.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 0c58c35f
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+1 −0
Original line number Diff line number Diff line
@@ -39,4 +39,5 @@ atlantic-objs := aq_main.o \
	hw_atl/hw_atl_a0.o \
	hw_atl/hw_atl_b0.o \
	hw_atl/hw_atl_utils.o \
	hw_atl/hw_atl_utils_fw2x.o \
	hw_atl/hw_atl_llh.o
+0 −1
Original line number Diff line number Diff line
@@ -42,7 +42,6 @@ struct aq_hw_caps_s {
	u8 rx_rings;
	bool flow_control;
	bool is_64_dma;
	u32 fw_ver_expected;
};

struct aq_hw_link_status_s {
+10 −2
Original line number Diff line number Diff line
@@ -32,6 +32,8 @@
#define HW_ATL_MPI_SPEED_SHIFT  16U

#define HW_ATL_FW_VER_1X 0x01050006U
#define HW_ATL_FW_VER_2X 0x02000000U
#define HW_ATL_FW_VER_3X 0x03000000U

static int hw_atl_utils_ver_match(u32 ver_expected, u32 ver_actual);

@@ -46,6 +48,12 @@ int hw_atl_utils_initfw(struct aq_hw_s *self, const struct aq_fw_ops **fw_ops)

	if (hw_atl_utils_ver_match(HW_ATL_FW_VER_1X, self->fw_ver_actual) == 0)
		*fw_ops = &aq_fw_1x_ops;
	else if (hw_atl_utils_ver_match(HW_ATL_FW_VER_2X,
					self->fw_ver_actual) == 0)
		*fw_ops = &aq_fw_2x_ops;
	else if (hw_atl_utils_ver_match(HW_ATL_FW_VER_3X,
					self->fw_ver_actual) == 0)
		*fw_ops = &aq_fw_2x_ops;
	else {
		aq_pr_err("Bad FW version detected: %x\n",
		       self->fw_ver_actual);
@@ -56,7 +64,7 @@ int hw_atl_utils_initfw(struct aq_hw_s *self, const struct aq_fw_ops **fw_ops)
	return err;
}

static int hw_atl_utils_fw_downld_dwords(struct aq_hw_s *self, u32 a,
int hw_atl_utils_fw_downld_dwords(struct aq_hw_s *self, u32 a,
				  u32 *p, u32 cnt)
{
	int err = 0;
+62 −1
Original line number Diff line number Diff line
@@ -180,6 +180,64 @@ enum hal_atl_utils_fw_state_e {
#define HAL_ATLANTIC_RATE_100M       BIT(5)
#define HAL_ATLANTIC_RATE_INVALID    BIT(6)

enum hw_atl_fw2x_rate {
	FW2X_RATE_100M    = 0x20,
	FW2X_RATE_1G      = 0x100,
	FW2X_RATE_2G5     = 0x200,
	FW2X_RATE_5G      = 0x400,
	FW2X_RATE_10G     = 0x800,
};

enum hw_atl_fw2x_caps_lo {
	CAPS_LO_10BASET_HD = 0x00,
	CAPS_LO_10BASET_FD,
	CAPS_LO_100BASETX_HD,
	CAPS_LO_100BASET4_HD,
	CAPS_LO_100BASET2_HD,
	CAPS_LO_100BASETX_FD,
	CAPS_LO_100BASET2_FD,
	CAPS_LO_1000BASET_HD,
	CAPS_LO_1000BASET_FD,
	CAPS_LO_2P5GBASET_FD,
	CAPS_LO_5GBASET_FD,
	CAPS_LO_10GBASET_FD,
};

enum hw_atl_fw2x_caps_hi {
	CAPS_HI_RESERVED1 = 0x00,
	CAPS_HI_10BASET_EEE,
	CAPS_HI_RESERVED2,
	CAPS_HI_PAUSE,
	CAPS_HI_ASYMMETRIC_PAUSE,
	CAPS_HI_100BASETX_EEE,
	CAPS_HI_RESERVED3,
	CAPS_HI_RESERVED4,
	CAPS_HI_1000BASET_FD_EEE,
	CAPS_HI_2P5GBASET_FD_EEE,
	CAPS_HI_5GBASET_FD_EEE,
	CAPS_HI_10GBASET_FD_EEE,
	CAPS_HI_RESERVED5,
	CAPS_HI_RESERVED6,
	CAPS_HI_RESERVED7,
	CAPS_HI_RESERVED8,
	CAPS_HI_RESERVED9,
	CAPS_HI_CABLE_DIAG,
	CAPS_HI_TEMPERATURE,
	CAPS_HI_DOWNSHIFT,
	CAPS_HI_PTP_AVB_EN,
	CAPS_HI_MEDIA_DETECT,
	CAPS_HI_LINK_DROP,
	CAPS_HI_SLEEP_PROXY,
	CAPS_HI_WOL,
	CAPS_HI_MAC_STOP,
	CAPS_HI_EXT_LOOPBACK,
	CAPS_HI_INT_LOOPBACK,
	CAPS_HI_EFUSE_AGENT,
	CAPS_HI_WOL_TIMER,
	CAPS_HI_STATISTICS,
	CAPS_HI_TRANSACTION_ID,
};

struct aq_hw_s;
struct aq_fw_ops;
struct aq_hw_caps_s;
@@ -222,7 +280,10 @@ int hw_atl_utils_get_fw_version(struct aq_hw_s *self, u32 *fw_version);
int hw_atl_utils_update_stats(struct aq_hw_s *self);

struct aq_stats_s *hw_atl_utils_get_hw_stats(struct aq_hw_s *self);
int hw_atl_utils_fw_downld_dwords(struct aq_hw_s *self, u32 a,
				  u32 *p, u32 cnt);

extern const struct aq_fw_ops aq_fw_1x_ops;
extern const struct aq_fw_ops aq_fw_2x_ops;

#endif /* HW_ATL_UTILS_H */
+184 −0
Original line number Diff line number Diff line
/*
 * 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;
}

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;
}

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;
}

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;
}

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;
}

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;
}

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);
}

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,
};