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/*
* Copyright 2015-2016 Freescale Semiconductor, Inc.
* Copyright 2017 NXP
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef _PFE_ETH_H_
#define _PFE_ETH_H_
#include <linux/kernel.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/ethtool.h>
#include <linux/mii.h>
#include <linux/phy.h>
#include <linux/clk.h>
#include <linux/interrupt.h>
#include <linux/time.h>
#define PFE_ETH_NAPI_STATS
#define PFE_ETH_TX_STATS
#define PFE_ETH_FRAGS_MAX (65536 / HIF_RX_PKT_MIN_SIZE)
#define LRO_LEN_COUNT_MAX 32
#define LRO_NB_COUNT_MAX 32
#define PFE_PAUSE_FLAG_ENABLE 1
#define PFE_PAUSE_FLAG_AUTONEG 2
/* GEMAC configured by SW */
/* GEMAC configured by phy lines (not for MII/GMII) */
#define GEMAC_SW_FULL_DUPLEX BIT(9)
#define GEMAC_SW_SPEED_10M (0 << 12)
#define GEMAC_SW_SPEED_100M BIT(12)
#define GEMAC_SW_SPEED_1G (2 << 12)
#define GEMAC_NO_PHY BIT(0)
struct ls1012a_eth_platform_data {
/* device specific information */
u32 device_flags;
char name[16];
/* board specific information */
u32 mii_config;
u32 phy_flags;
u32 gem_id;
u32 bus_id;
u32 phy_id;
u32 mdio_muxval;
u8 mac_addr[ETH_ALEN];
};
struct ls1012a_mdio_platform_data {
int enabled;
int irq[32];
u32 phy_mask;
int mdc_div;
};
struct ls1012a_pfe_platform_data {
struct ls1012a_eth_platform_data ls1012a_eth_pdata[3];
struct ls1012a_mdio_platform_data ls1012a_mdio_pdata[3];
};
#define NUM_GEMAC_SUPPORT 2
#define DRV_NAME "pfe-eth"
#define DRV_VERSION "1.0"
#define LS1012A_TX_FAST_RECOVERY_TIMEOUT_MS 3
#define TX_POLL_TIMEOUT_MS 1000
#define EMAC_TXQ_CNT 16
#define EMAC_TXQ_DEPTH (HIF_TX_DESC_NT)
#define JUMBO_FRAME_SIZE 10258
/*
* Client Tx queue threshold, for txQ flush condition.
* It must be smaller than the queue size (in case we ever change it in the
* future).
*/
#define HIF_CL_TX_FLUSH_MARK 32
/*
* Max number of TX resources (HIF descriptors or skbs) that will be released
* in a single go during batch recycling.
* Should be lower than the flush mark so the SW can provide the HW with a
* continuous stream of packets instead of bursts.
*/
#define TX_FREE_MAX_COUNT 16
#define EMAC_RXQ_CNT 3
#define EMAC_RXQ_DEPTH HIF_RX_DESC_NT
/* make sure clients can receive a full burst of packets */
#define EMAC_RMON_TXBYTES_POS 0x00
#define EMAC_RMON_RXBYTES_POS 0x14
#define EMAC_QUEUENUM_MASK (emac_txq_cnt - 1)
#define EMAC_MDIO_TIMEOUT 1000
#define MAX_UC_SPEC_ADDR_REG 31
struct pfe_eth_fast_timer {
int queuenum;
struct hrtimer timer;
void *base;
};
struct pfe_eth_priv_s {
struct pfe *pfe;
struct hif_client_s client;
struct napi_struct lro_napi;
struct napi_struct low_napi;
struct napi_struct high_napi;
int low_tmu_q;
int high_tmu_q;
struct net_device_stats stats;
struct net_device *ndev;
int id;
int promisc;
unsigned int msg_enable;
unsigned int usr_features;
spinlock_t lock; /* protect member variables */
unsigned int event_status;
int irq;
void *EMAC_baseaddr;
/* This points to the EMAC base from where we access PHY */
void *PHY_baseaddr;
void *GPI_baseaddr;
/* PHY stuff */
struct phy_device *phydev;
int oldspeed;
int oldduplex;
int oldlink;
/* mdio info */
int mdc_div;
struct mii_bus *mii_bus;
struct clk *gemtx_clk;
int wol;
int pause_flag;
int default_priority;
struct pfe_eth_fast_timer fast_tx_timeout[EMAC_TXQ_CNT];
struct ls1012a_eth_platform_data *einfo;
struct sk_buff *skb_inflight[EMAC_RXQ_CNT + 6];
#ifdef PFE_ETH_TX_STATS
unsigned int stop_queue_total[EMAC_TXQ_CNT];
unsigned int stop_queue_hif[EMAC_TXQ_CNT];
unsigned int stop_queue_hif_client[EMAC_TXQ_CNT];
unsigned int stop_queue_credit[EMAC_TXQ_CNT];
unsigned int clean_fail[EMAC_TXQ_CNT];
unsigned int was_stopped[EMAC_TXQ_CNT];
#endif
#ifdef PFE_ETH_NAPI_STATS
unsigned int napi_counters[NAPI_MAX_COUNT];
#endif
unsigned int frags_inflight[EMAC_RXQ_CNT + 6];
};
struct pfe_eth {
struct pfe_eth_priv_s *eth_priv[3];
};
int pfe_eth_init(struct pfe *pfe);
void pfe_eth_exit(struct pfe *pfe);
int pfe_eth_suspend(struct net_device *dev);
int pfe_eth_resume(struct net_device *dev);
int pfe_eth_mdio_reset(struct mii_bus *bus);
#endif /* _PFE_ETH_H_ */
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