Release 4.7 drivers/net/ethernet/ti/cpsw.c

/*
 * Texas Instruments Ethernet Switch Driver
 *
 * Copyright (C) 2012 Texas Instruments
 *
 * 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 version 2.
 *
 * This program is distributed "as is" WITHOUT ANY WARRANTY of any
 * kind, whether express or implied; without even the implied warranty
 * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 */

#include <linux/kernel.h>
#include <linux/io.h>
#include <linux/clk.h>
#include <linux/timer.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/irqreturn.h>
#include <linux/interrupt.h>
#include <linux/if_ether.h>
#include <linux/etherdevice.h>
#include <linux/netdevice.h>
#include <linux/net_tstamp.h>
#include <linux/phy.h>
#include <linux/workqueue.h>
#include <linux/delay.h>
#include <linux/pm_runtime.h>
#include <linux/gpio.h>
#include <linux/of.h>
#include <linux/of_mdio.h>
#include <linux/of_net.h>
#include <linux/of_device.h>
#include <linux/if_vlan.h>

#include <linux/pinctrl/consumer.h>

#include "cpsw.h"
#include "cpsw_ale.h"
#include "cpts.h"
#include "davinci_cpdma.h"


#define CPSW_DEBUG	(NETIF_MSG_HW           | NETIF_MSG_WOL         | \
                         NETIF_MSG_DRV          | NETIF_MSG_LINK        | \
                         NETIF_MSG_IFUP         | NETIF_MSG_INTR        | \
                         NETIF_MSG_PROBE        | NETIF_MSG_TIMER       | \
                         NETIF_MSG_IFDOWN       | NETIF_MSG_RX_ERR      | \
                         NETIF_MSG_TX_ERR       | NETIF_MSG_TX_DONE     | \
                         NETIF_MSG_PKTDATA      | NETIF_MSG_TX_QUEUED   | \
                         NETIF_MSG_RX_STATUS)


#define cpsw_info(priv, type, format, ...)		\
do {                                                            \
        if (netif_msg_##type(priv) && net_ratelimit())          \
                dev_info(priv->dev, format, ## __VA_ARGS__);    \
} while (0)


#define cpsw_err(priv, type, format, ...)		\
do {                                                            \
        if (netif_msg_##type(priv) && net_ratelimit())          \
                dev_err(priv->dev, format, ## __VA_ARGS__);     \
} while (0)


#define cpsw_dbg(priv, type, format, ...)		\
do {                                                            \
        if (netif_msg_##type(priv) && net_ratelimit())          \
                dev_dbg(priv->dev, format, ## __VA_ARGS__);     \
} while (0)


#define cpsw_notice(priv, type, format, ...)		\
do {                                                            \
        if (netif_msg_##type(priv) && net_ratelimit())          \
                dev_notice(priv->dev, format, ## __VA_ARGS__);  \
} while (0)


#define ALE_ALL_PORTS		0x7


#define CPSW_MAJOR_VERSION(reg)		(reg >> 8 & 0x7)

#define CPSW_MINOR_VERSION(reg)		(reg & 0xff)

#define CPSW_RTL_VERSION(reg)		((reg >> 11) & 0x1f)


#define CPSW_VERSION_1		0x19010a

#define CPSW_VERSION_2		0x19010c

#define CPSW_VERSION_3		0x19010f

#define CPSW_VERSION_4		0x190112


#define HOST_PORT_NUM		0

#define SLIVER_SIZE		0x40


#define CPSW1_HOST_PORT_OFFSET	0x028

#define CPSW1_SLAVE_OFFSET	0x050

#define CPSW1_SLAVE_SIZE	0x040

#define CPSW1_CPDMA_OFFSET	0x100

#define CPSW1_STATERAM_OFFSET	0x200

#define CPSW1_HW_STATS		0x400

#define CPSW1_CPTS_OFFSET	0x500

#define CPSW1_ALE_OFFSET	0x600

#define CPSW1_SLIVER_OFFSET	0x700


#define CPSW2_HOST_PORT_OFFSET	0x108

#define CPSW2_SLAVE_OFFSET	0x200

#define CPSW2_SLAVE_SIZE	0x100

#define CPSW2_CPDMA_OFFSET	0x800

#define CPSW2_HW_STATS		0x900

#define CPSW2_STATERAM_OFFSET	0xa00

#define CPSW2_CPTS_OFFSET	0xc00

#define CPSW2_ALE_OFFSET	0xd00

#define CPSW2_SLIVER_OFFSET	0xd80

#define CPSW2_BD_OFFSET		0x2000


#define CPDMA_RXTHRESH		0x0c0

#define CPDMA_RXFREE		0x0e0

#define CPDMA_TXHDP		0x00

#define CPDMA_RXHDP		0x20

#define CPDMA_TXCP		0x40

#define CPDMA_RXCP		0x60


#define CPSW_POLL_WEIGHT	64

#define CPSW_MIN_PACKET_SIZE	60

#define CPSW_MAX_PACKET_SIZE	(1500 + 14 + 4 + 4)


#define RX_PRIORITY_MAPPING	0x76543210

#define TX_PRIORITY_MAPPING	0x33221100

#define CPDMA_TX_PRIORITY_MAP	0x76543210


#define CPSW_VLAN_AWARE		BIT(1)

#define CPSW_ALE_VLAN_AWARE	1


#define CPSW_FIFO_NORMAL_MODE		(0 << 16)

#define CPSW_FIFO_DUAL_MAC_MODE		(1 << 16)

#define CPSW_FIFO_RATE_LIMIT_MODE	(2 << 16)


#define CPSW_INTPACEEN		(0x3f << 16)

#define CPSW_INTPRESCALE_MASK	(0x7FF << 0)

#define CPSW_CMINTMAX_CNT	63

#define CPSW_CMINTMIN_CNT	2

#define CPSW_CMINTMAX_INTVL	(1000 / CPSW_CMINTMIN_CNT)

#define CPSW_CMINTMIN_INTVL	((1000 / CPSW_CMINTMAX_CNT) + 1)


#define cpsw_slave_index(priv)				\
		((priv->data.dual_emac) ? priv->emac_port :     \
                priv->data.active_slave)


static int debug_level;
module_param(debug_level, int, 0);
MODULE_PARM_DESC(debug_level, "cpsw debug level (NETIF_MSG bits)");


static int ale_ageout = 10;
module_param(ale_ageout, int, 0);
MODULE_PARM_DESC(ale_ageout, "cpsw ale ageout interval (seconds)");


static int rx_packet_max = CPSW_MAX_PACKET_SIZE;
module_param(rx_packet_max, int, 0);
MODULE_PARM_DESC(rx_packet_max, "maximum receive packet size (bytes)");


struct cpsw_wr_regs {
	
u32	id_ver;
	
u32	soft_reset;
	
u32	control;
	
u32	int_control;
	
u32	rx_thresh_en;
	
u32	rx_en;
	
u32	tx_en;
	
u32	misc_en;
	
u32	mem_allign1[8];
	
u32	rx_thresh_stat;
	
u32	rx_stat;
	
u32	tx_stat;
	
u32	misc_stat;
	
u32	mem_allign2[8];
	
u32	rx_imax;
	
u32	tx_imax;

};


struct cpsw_ss_regs {
	
u32	id_ver;
	
u32	control;
	
u32	soft_reset;
	
u32	stat_port_en;
	
u32	ptype;
	
u32	soft_idle;
	
u32	thru_rate;
	
u32	gap_thresh;
	
u32	tx_start_wds;
	
u32	flow_control;
	
u32	vlan_ltype;
	
u32	ts_ltype;
	
u32	dlr_ltype;
};

/* CPSW_PORT_V1 */

#define CPSW1_MAX_BLKS      0x00 
/* Maximum FIFO Blocks */

#define CPSW1_BLK_CNT       0x04 
/* FIFO Block Usage Count (Read Only) */

#define CPSW1_TX_IN_CTL     0x08 
/* Transmit FIFO Control */

#define CPSW1_PORT_VLAN     0x0c 
/* VLAN Register */

#define CPSW1_TX_PRI_MAP    0x10 
/* Tx Header Priority to Switch Pri Mapping */

#define CPSW1_TS_CTL        0x14 
/* Time Sync Control */

#define CPSW1_TS_SEQ_LTYPE  0x18 
/* Time Sync Sequence ID Offset and Msg Type */

#define CPSW1_TS_VLAN       0x1c 
/* Time Sync VLAN1 and VLAN2 */

/* CPSW_PORT_V2 */

#define CPSW2_CONTROL       0x00 
/* Control Register */

#define CPSW2_MAX_BLKS      0x08 
/* Maximum FIFO Blocks */

#define CPSW2_BLK_CNT       0x0c 
/* FIFO Block Usage Count (Read Only) */

#define CPSW2_TX_IN_CTL     0x10 
/* Transmit FIFO Control */

#define CPSW2_PORT_VLAN     0x14 
/* VLAN Register */

#define CPSW2_TX_PRI_MAP    0x18 
/* Tx Header Priority to Switch Pri Mapping */

#define CPSW2_TS_SEQ_MTYPE  0x1c 
/* Time Sync Sequence ID Offset and Msg Type */

/* CPSW_PORT_V1 and V2 */

#define SA_LO               0x20 
/* CPGMAC_SL Source Address Low */

#define SA_HI               0x24 
/* CPGMAC_SL Source Address High */

#define SEND_PERCENT        0x28 
/* Transmit Queue Send Percentages */

/* CPSW_PORT_V2 only */

#define RX_DSCP_PRI_MAP0    0x30 
/* Rx DSCP Priority to Rx Packet Mapping */

#define RX_DSCP_PRI_MAP1    0x34 
/* Rx DSCP Priority to Rx Packet Mapping */

#define RX_DSCP_PRI_MAP2    0x38 
/* Rx DSCP Priority to Rx Packet Mapping */

#define RX_DSCP_PRI_MAP3    0x3c 
/* Rx DSCP Priority to Rx Packet Mapping */

#define RX_DSCP_PRI_MAP4    0x40 
/* Rx DSCP Priority to Rx Packet Mapping */

#define RX_DSCP_PRI_MAP5    0x44 
/* Rx DSCP Priority to Rx Packet Mapping */

#define RX_DSCP_PRI_MAP6    0x48 
/* Rx DSCP Priority to Rx Packet Mapping */

#define RX_DSCP_PRI_MAP7    0x4c 
/* Rx DSCP Priority to Rx Packet Mapping */

/* Bit definitions for the CPSW2_CONTROL register */

#define PASS_PRI_TAGGED     (1<<24) 
/* Pass Priority Tagged */

#define VLAN_LTYPE2_EN      (1<<21) 
/* VLAN LTYPE 2 enable */

#define VLAN_LTYPE1_EN      (1<<20) 
/* VLAN LTYPE 1 enable */

#define DSCP_PRI_EN         (1<<16) 
/* DSCP Priority Enable */

#define TS_320              (1<<14) 
/* Time Sync Dest Port 320 enable */

#define TS_319              (1<<13) 
/* Time Sync Dest Port 319 enable */

#define TS_132              (1<<12) 
/* Time Sync Dest IP Addr 132 enable */

#define TS_131              (1<<11) 
/* Time Sync Dest IP Addr 131 enable */

#define TS_130              (1<<10) 
/* Time Sync Dest IP Addr 130 enable */

#define TS_129              (1<<9)  
/* Time Sync Dest IP Addr 129 enable */

#define TS_TTL_NONZERO      (1<<8)  
/* Time Sync Time To Live Non-zero enable */

#define TS_ANNEX_F_EN       (1<<6)  
/* Time Sync Annex F enable */

#define TS_ANNEX_D_EN       (1<<4)  
/* Time Sync Annex D enable */

#define TS_LTYPE2_EN        (1<<3)  
/* Time Sync LTYPE 2 enable */

#define TS_LTYPE1_EN        (1<<2)  
/* Time Sync LTYPE 1 enable */

#define TS_TX_EN            (1<<1)  
/* Time Sync Transmit Enable */

#define TS_RX_EN            (1<<0)  
/* Time Sync Receive Enable */


#define CTRL_V2_TS_BITS \
	(TS_320 | TS_319 | TS_132 | TS_131 | TS_130 | TS_129 |\
         TS_TTL_NONZERO  | TS_ANNEX_D_EN | TS_LTYPE1_EN)


#define CTRL_V2_ALL_TS_MASK (CTRL_V2_TS_BITS | TS_TX_EN | TS_RX_EN)

#define CTRL_V2_TX_TS_BITS  (CTRL_V2_TS_BITS | TS_TX_EN)

#define CTRL_V2_RX_TS_BITS  (CTRL_V2_TS_BITS | TS_RX_EN)



#define CTRL_V3_TS_BITS \
	(TS_320 | TS_319 | TS_132 | TS_131 | TS_130 | TS_129 |\
         TS_TTL_NONZERO | TS_ANNEX_F_EN | TS_ANNEX_D_EN |\
         TS_LTYPE1_EN)


#define CTRL_V3_ALL_TS_MASK (CTRL_V3_TS_BITS | TS_TX_EN | TS_RX_EN)

#define CTRL_V3_TX_TS_BITS  (CTRL_V3_TS_BITS | TS_TX_EN)

#define CTRL_V3_RX_TS_BITS  (CTRL_V3_TS_BITS | TS_RX_EN)

/* Bit definitions for the CPSW2_TS_SEQ_MTYPE register */

#define TS_SEQ_ID_OFFSET_SHIFT   (16)    
/* Time Sync Sequence ID Offset */

#define TS_SEQ_ID_OFFSET_MASK    (0x3f)

#define TS_MSG_TYPE_EN_SHIFT     (0)     
/* Time Sync Message Type Enable */

#define TS_MSG_TYPE_EN_MASK      (0xffff)

/* The PTP event messages - Sync, Delay_Req, Pdelay_Req, and Pdelay_Resp. */

#define EVENT_MSG_BITS ((1<<0) | (1<<1) | (1<<2) | (1<<3))

/* Bit definitions for the CPSW1_TS_CTL register */

#define CPSW_V1_TS_RX_EN		BIT(0)

#define CPSW_V1_TS_TX_EN		BIT(4)

#define CPSW_V1_MSG_TYPE_OFS		16

/* Bit definitions for the CPSW1_TS_SEQ_LTYPE register */

#define CPSW_V1_SEQ_ID_OFS_SHIFT	16


struct cpsw_host_regs {
	
u32	max_blks;
	
u32	blk_cnt;
	
u32	tx_in_ctl;
	
u32	port_vlan;
	
u32	tx_pri_map;
	
u32	cpdma_tx_pri_map;
	
u32	cpdma_rx_chan_map;
};


struct cpsw_sliver_regs {
	
u32	id_ver;
	
u32	mac_control;
	
u32	mac_status;
	
u32	soft_reset;
	
u32	rx_maxlen;
	
u32	__reserved_0;
	
u32	rx_pause;
	
u32	tx_pause;
	
u32	__reserved_1;
	
u32	rx_pri_map;
};


struct cpsw_hw_stats {
	
u32	rxgoodframes;
	
u32	rxbroadcastframes;
	
u32	rxmulticastframes;
	
u32	rxpauseframes;
	
u32	rxcrcerrors;
	
u32	rxaligncodeerrors;
	
u32	rxoversizedframes;
	
u32	rxjabberframes;
	
u32	rxundersizedframes;
	
u32	rxfragments;
	
u32	__pad_0[2];
	
u32	rxoctets;
	
u32	txgoodframes;
	
u32	txbroadcastframes;
	
u32	txmulticastframes;
	
u32	txpauseframes;
	
u32	txdeferredframes;
	
u32	txcollisionframes;
	
u32	txsinglecollframes;
	
u32	txmultcollframes;
	
u32	txexcessivecollisions;
	
u32	txlatecollisions;
	
u32	txunderrun;
	
u32	txcarriersenseerrors;
	
u32	txoctets;
	
u32	octetframes64;
	
u32	octetframes65t127;
	
u32	octetframes128t255;
	
u32	octetframes256t511;
	
u32	octetframes512t1023;
	
u32	octetframes1024tup;
	
u32	netoctets;
	
u32	rxsofoverruns;
	
u32	rxmofoverruns;
	
u32	rxdmaoverruns;
};


struct cpsw_slave {
	
void __iomem			*regs;
	
struct cpsw_sliver_regs __iomem	*sliver;
	
int				slave_num;
	
u32				mac_control;
	
struct cpsw_slave_data		*data;
	
struct phy_device		*phy;
	
struct net_device		*ndev;
	
u32				port_vlan;
	
u32				open_stat;
};



static inline u32 slave_read(struct cpsw_slave *slave, u32 offset)
{
	return __raw_readl(slave->regs + offset);
}

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static inline void slave_write(struct cpsw_slave *slave, u32 val, u32 offset)
{
	__raw_writel(val, slave->regs + offset);
}

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struct cpsw_priv {
	
spinlock_t			lock;
	
struct platform_device		*pdev;
	
struct net_device		*ndev;
	
struct napi_struct		napi_rx;
	
struct napi_struct		napi_tx;
	
struct device			*dev;
	
struct cpsw_platform_data	data;
	
struct cpsw_ss_regs __iomem	*regs;
	
struct cpsw_wr_regs __iomem	*wr_regs;
	
u8 __iomem			*hw_stats;
	
struct cpsw_host_regs __iomem	*host_port_regs;
	
u32				msg_enable;
	
u32				version;
	
u32				coal_intvl;
	
u32				bus_freq_mhz;
	
int				rx_packet_max;
	
struct clk			*clk;
	
u8				mac_addr[ETH_ALEN];
	
struct cpsw_slave		*slaves;
	
struct cpdma_ctlr		*dma;
	

struct cpdma_chan		*txch, *rxch;
	
struct cpsw_ale			*ale;
	
bool				rx_pause;
	
bool				tx_pause;
	
bool				quirk_irq;
	
bool				rx_irq_disabled;
	
bool				tx_irq_disabled;
	/* snapshot of IRQ numbers */
	
u32 irqs_table[4];
	
u32 num_irqs;
	
struct cpts *cpts;
	
u32 emac_port;
};


struct cpsw_stats {
	
char stat_string[ETH_GSTRING_LEN];
	
int type;
	
int sizeof_stat;
	
int stat_offset;
};

enum {
	
CPSW_STATS,
	
CPDMA_RX_STATS,
	
CPDMA_TX_STATS,
};


#define CPSW_STAT(m)		CPSW_STATS,                             \
                                sizeof(((struct cpsw_hw_stats *)0)->m), \
                                offsetof(struct cpsw_hw_stats, m)

#define CPDMA_RX_STAT(m)	CPDMA_RX_STATS,                            \
                                sizeof(((struct cpdma_chan_stats *)0)->m), \
                                offsetof(struct cpdma_chan_stats, m)

#define CPDMA_TX_STAT(m)	CPDMA_TX_STATS,                            \
                                sizeof(((struct cpdma_chan_stats *)0)->m), \
                                offsetof(struct cpdma_chan_stats, m)


static const struct cpsw_stats cpsw_gstrings_stats[] = {
	{ "Good Rx Frames", CPSW_STAT(rxgoodframes) },
	{ "Broadcast Rx Frames", CPSW_STAT(rxbroadcastframes) },
	{ "Multicast Rx Frames", CPSW_STAT(rxmulticastframes) },
	{ "Pause Rx Frames", CPSW_STAT(rxpauseframes) },
	{ "Rx CRC Errors", CPSW_STAT(rxcrcerrors) },
	{ "Rx Align/Code Errors", CPSW_STAT(rxaligncodeerrors) },
	{ "Oversize Rx Frames", CPSW_STAT(rxoversizedframes) },
	{ "Rx Jabbers", CPSW_STAT(rxjabberframes) },
	{ "Undersize (Short) Rx Frames", CPSW_STAT(rxundersizedframes) },
	{ "Rx Fragments", CPSW_STAT(rxfragments) },
	{ "Rx Octets", CPSW_STAT(rxoctets) },
	{ "Good Tx Frames", CPSW_STAT(txgoodframes) },
	{ "Broadcast Tx Frames", CPSW_STAT(txbroadcastframes) },
	{ "Multicast Tx Frames", CPSW_STAT(txmulticastframes) },
	{ "Pause Tx Frames", CPSW_STAT(txpauseframes) },
	{ "Deferred Tx Frames", CPSW_STAT(txdeferredframes) },
	{ "Collisions", CPSW_STAT(txcollisionframes) },
	{ "Single Collision Tx Frames", CPSW_STAT(txsinglecollframes) },
	{ "Multiple Collision Tx Frames", CPSW_STAT(txmultcollframes) },
	{ "Excessive Collisions", CPSW_STAT(txexcessivecollisions) },
	{ "Late Collisions", CPSW_STAT(txlatecollisions) },
	{ "Tx Underrun", CPSW_STAT(txunderrun) },
	{ "Carrier Sense Errors", CPSW_STAT(txcarriersenseerrors) },
	{ "Tx Octets", CPSW_STAT(txoctets) },
	{ "Rx + Tx 64 Octet Frames", CPSW_STAT(octetframes64) },
	{ "Rx + Tx 65-127 Octet Frames", CPSW_STAT(octetframes65t127) },
	{ "Rx + Tx 128-255 Octet Frames", CPSW_STAT(octetframes128t255) },
	{ "Rx + Tx 256-511 Octet Frames", CPSW_STAT(octetframes256t511) },
	{ "Rx + Tx 512-1023 Octet Frames", CPSW_STAT(octetframes512t1023) },
	{ "Rx + Tx 1024-Up Octet Frames", CPSW_STAT(octetframes1024tup) },
	{ "Net Octets", CPSW_STAT(netoctets) },
	{ "Rx Start of Frame Overruns", CPSW_STAT(rxsofoverruns) },
	{ "Rx Middle of Frame Overruns", CPSW_STAT(rxmofoverruns) },
	{ "Rx DMA Overruns", CPSW_STAT(rxdmaoverruns) },
	{ "Rx DMA chan: head_enqueue", CPDMA_RX_STAT(head_enqueue) },
	{ "Rx DMA chan: tail_enqueue", CPDMA_RX_STAT(tail_enqueue) },
	{ "Rx DMA chan: pad_enqueue", CPDMA_RX_STAT(pad_enqueue) },
	{ "Rx DMA chan: misqueued", CPDMA_RX_STAT(misqueued) },
	{ "Rx DMA chan: desc_alloc_fail", CPDMA_RX_STAT(desc_alloc_fail) },
	{ "Rx DMA chan: pad_alloc_fail", CPDMA_RX_STAT(pad_alloc_fail) },
	{ "Rx DMA chan: runt_receive_buf", CPDMA_RX_STAT(runt_receive_buff) },
	{ "Rx DMA chan: runt_transmit_buf", CPDMA_RX_STAT(runt_transmit_buff) },
	{ "Rx DMA chan: empty_dequeue", CPDMA_RX_STAT(empty_dequeue) },
	{ "Rx DMA chan: busy_dequeue", CPDMA_RX_STAT(busy_dequeue) },
	{ "Rx DMA chan: good_dequeue", CPDMA_RX_STAT(good_dequeue) },
	{ "Rx DMA chan: requeue", CPDMA_RX_STAT(requeue) },
	{ "Rx DMA chan: teardown_dequeue", CPDMA_RX_STAT(teardown_dequeue) },
	{ "Tx DMA chan: head_enqueue", CPDMA_TX_STAT(head_enqueue) },
	{ "Tx DMA chan: tail_enqueue", CPDMA_TX_STAT(tail_enqueue) },
	{ "Tx DMA chan: pad_enqueue", CPDMA_TX_STAT(pad_enqueue) },
	{ "Tx DMA chan: misqueued", CPDMA_TX_STAT(misqueued) },
	{ "Tx DMA chan: desc_alloc_fail", CPDMA_TX_STAT(desc_alloc_fail) },
	{ "Tx DMA chan: pad_alloc_fail", CPDMA_TX_STAT(pad_alloc_fail) },
	{ "Tx DMA chan: runt_receive_buf", CPDMA_TX_STAT(runt_receive_buff) },
	{ "Tx DMA chan: runt_transmit_buf", CPDMA_TX_STAT(runt_transmit_buff) },
	{ "Tx DMA chan: empty_dequeue", CPDMA_TX_STAT(empty_dequeue) },
	{ "Tx DMA chan: busy_dequeue", CPDMA_TX_STAT(busy_dequeue) },
	{ "Tx DMA chan: good_dequeue", CPDMA_TX_STAT(good_dequeue) },
	{ "Tx DMA chan: requeue", CPDMA_TX_STAT(requeue) },
	{ "Tx DMA chan: teardown_dequeue", CPDMA_TX_STAT(teardown_dequeue) },
};


#define CPSW_STATS_LEN	ARRAY_SIZE(cpsw_gstrings_stats)


#define napi_to_priv(napi)	container_of(napi, struct cpsw_priv, napi)

#define for_each_slave(priv, func, arg...)				\
	do {                                                            \
                struct cpsw_slave *slave;                               \
                int n;                                                  \
                if (priv->data.dual_emac)                               \
                        (func)((priv)->slaves + priv->emac_port, ##arg);\
                else                                                    \
                        for (n = (priv)->data.slaves,                   \
                                        slave = (priv)->slaves;         \
                                        n; n--)                         \
                                (func)(slave++, ##arg);                 \
        } while (0)

#define cpsw_get_slave_ndev(priv, __slave_no__)				\
	((__slave_no__ < priv->data.slaves) ?                           \
                priv->slaves[__slave_no__].ndev : NULL)

#define cpsw_get_slave_priv(priv, __slave_no__)				\
	(((__slave_no__ < priv->data.slaves) &&                         \
                (priv->slaves[__slave_no__].ndev)) ?                    \
                netdev_priv(priv->slaves[__slave_no__].ndev) : NULL)    \

#define cpsw_dual_emac_src_port_detect(status, priv, ndev, skb)         \
        do {                                                            \
                if (!priv->data.dual_emac)                              \
                        break;                                          \
                if (CPDMA_RX_SOURCE_PORT(status) == 1) {                \
                        ndev = cpsw_get_slave_ndev(priv, 0);            \
                        priv = netdev_priv(ndev);                       \
                        skb->dev = ndev;                                \
                } else if (CPDMA_RX_SOURCE_PORT(status) == 2) {         \
                        ndev = cpsw_get_slave_ndev(priv, 1);            \
                        priv = netdev_priv(ndev);                       \
                        skb->dev = ndev;                                \
                }                                                       \
        } while (0)

#define cpsw_add_mcast(priv, addr)					\
	do {                                                            \
                if (priv->data.dual_emac) {                             \
                        struct cpsw_slave *slave = priv->slaves +       \
                                                priv->emac_port;        \
                        int slave_port = cpsw_get_slave_port(priv,      \
                                                slave->slave_num);      \
                        cpsw_ale_add_mcast(priv->ale, addr,             \
                                1 << slave_port | ALE_PORT_HOST,        \
                                ALE_VLAN, slave->port_vlan, 0);         \
                } else {                                                \
                        cpsw_ale_add_mcast(priv->ale, addr,             \
                                ALE_ALL_PORTS,                          \
                                0, 0, 0);                               \
                }                                                       \
        } while (0)



static inline int cpsw_get_slave_port(struct cpsw_priv *priv, u32 slave_num)
{
	return slave_num + 1;
}

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20
100.00%
1
100.00%



static void cpsw_set_promiscious(struct net_device *ndev, bool enable)
{
	struct cpsw_priv *priv = netdev_priv(ndev);
	struct cpsw_ale *ale = priv->ale;
	int i;

	if (priv->data.dual_emac) {
		bool flag = false;

		/* Enabling promiscuous mode for one interface will be
                 * common for both the interface as the interface shares
                 * the same hardware resource.
                 */
		for (i = 0; i < priv->data.slaves; i++)
			if (priv->slaves[i].ndev->flags & IFF_PROMISC)
				flag = true;

		if (!enable && flag) {
			enable = true;
			dev_err(&ndev->dev, "promiscuity not disabled as the other interface is still in promiscuity mode\n");
		}

		if (enable) {
			/* Enable Bypass */
			cpsw_ale_control_set(ale, 0, ALE_BYPASS, 1);

			dev_dbg(&ndev->dev, "promiscuity enabled\n");
		} else {
			/* Disable Bypass */
			cpsw_ale_control_set(ale, 0, ALE_BYPASS, 0);
			dev_dbg(&ndev->dev, "promiscuity disabled\n");
		}
	} else {
		if (enable) {
			unsigned long timeout = jiffies + HZ;

			/* Disable Learn for all ports (host is port 0 and slaves are port 1 and up */
			for (i = 0; i <= priv->data.slaves; i++) {
				cpsw_ale_control_set(ale, i,
						     ALE_PORT_NOLEARN, 1);
				cpsw_ale_control_set(ale, i,
						     ALE_PORT_NO_SA_UPDATE, 1);
			}

			/* Clear All Untouched entries */
			cpsw_ale_control_set(ale, 0, ALE_AGEOUT, 1);
			do {
				cpu_relax();
				if (cpsw_ale_control_get(ale, 0, ALE_AGEOUT))
					break;
			} while (time_after(timeout, jiffies));
			cpsw_ale_control_set(ale, 0, ALE_AGEOUT, 1);

			/* Clear all mcast from ALE */
			cpsw_ale_flush_multicast(ale, ALE_ALL_PORTS, -1);

			/* Flood All Unicast Packets to Host port */
			cpsw_ale_control_set(ale, 0, ALE_P0_UNI_FLOOD, 1);
			dev_dbg(&ndev->dev, "promiscuity enabled\n");
		} else {
			/* Don't Flood All Unicast Packets to Host port */
			cpsw_ale_control_set(ale, 0, ALE_P0_UNI_FLOOD, 0);

			/* Enable Learn for all ports (host is port 0 and slaves are port 1 and up */
			for (i = 0; i <= priv->data.slaves; i++) {
				cpsw_ale_control_set(ale, i,
						     ALE_PORT_NOLEARN, 0);
				cpsw_ale_control_set(ale, i,
						     ALE_PORT_NO_SA_UPDATE, 0);
			}
			dev_dbg(&ndev->dev, "promiscuity disabled\n");
		}
	}
}

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mugunthan v n
mugunthan v n
368
98.40%
3
60.00%
lennart sorensen
lennart sorensen
5
1.34%
1
20.00%
heiko schocher
heiko schocher
1
0.27%
1
20.00%
Total
374
100.00%
5
100.00%



static void cpsw_ndo_set_rx_mode(struct net_device *ndev)
{
	struct cpsw_priv *priv = netdev_priv(ndev);
	int vid;

	if (priv->data.dual_emac)
		vid = priv->slaves[priv->emac_port].port_vlan;
	else
		vid = priv->data.default_vlan;

	if (ndev->flags & IFF_PROMISC) {
		/* Enable promiscuous mode */
		cpsw_set_promiscious(ndev, true);
		cpsw_ale_set_allmulti(priv->ale, IFF_ALLMULTI);
		return;
	} else {
		/* Disable promiscuous mode */
		cpsw_set_promiscious(ndev, false);
	}

	/* Restore allmulti on vlans if necessary */
	cpsw_ale_set_allmulti(priv->ale, priv->ndev->flags & IFF_ALLMULTI);

	/* Clear all mcast from ALE */
	cpsw_ale_flush_multicast(priv->ale, ALE_ALL_PORTS, vid);

	if (!netdev_mc_empty(ndev)) {
		struct netdev_hw_addr *ha;

		/* program multicast address list into ALE register */
		netdev_for_each_mc_addr(ha, ndev) {
			cpsw_add_mcast(priv, (u8 *)ha->addr);
		}
	}
}

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mugunthan v n
mugunthan v n
133
84.18%
4
80.00%
lennart sorensen
lennart sorensen
25
15.82%
1
20.00%
Total
158
100.00%
5
100.00%



static void cpsw_intr_enable(struct cpsw_priv *priv)
{
	__raw_writel(0xFF, &priv->wr_regs->tx_en);
	__raw_writel(0xFF, &priv->wr_regs->rx_en);

	cpdma_ctlr_int_ctrl(priv->dma, true);
	return;
}

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mugunthan v n
43
95.56%
1
50.00%
richard cochran
richard cochran
2
4.44%
1
50.00%
Total
45
100.00%
2
100.00%



static void cpsw_intr_disable(struct cpsw_priv *priv)
{
	__raw_writel(0, &priv->wr_regs->tx_en);
	__raw_writel(0, &priv->wr_regs->rx_en);

	cpdma_ctlr_int_ctrl(priv->dma, false);
	return;
}

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mugunthan v n
43
95.56%
1
50.00%
richard cochran
richard cochran
2
4.44%
1
50.00%
Total
45
100.00%
2
100.00%



static void cpsw_tx_handler(void *token, int len, int status)
{
	struct sk_buff		*skb = token;
	struct net_device	*ndev = skb->dev;
	struct cpsw_priv	*priv = netdev_priv(ndev);

	/* Check whether the queue is stopped due to stalled tx dma, if the
         * queue is stopped then start the queue as we have free desc for tx
         */
	if (unlikely(netif_queue_stopped(ndev)))
		netif_wake_queue(ndev);
	cpts_tx_timestamp(priv->cpts, skb);
	ndev->stats.tx_packets++;
	ndev->stats.tx_bytes += len;
	dev_kfree_skb_any(skb);
}

Contributors
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mugunthan v n
mugunthan v n
75
86.21%
3
50.00%
richard cochran
richard cochran
9
10.34%
1
16.67%
tobias klauser
tobias klauser
2
2.30%
1
16.67%
olof johansson
olof johansson
1
1.15%
1
16.67%
Total
87
100.00%
6
100.00%



static void cpsw_rx_handler(void *token, int len, int status)
{
	struct sk_buff		*skb = token;
	struct sk_buff		*new_skb;
	struct net_device	*ndev = skb->dev;
	struct cpsw_priv	*priv = netdev_priv(ndev);
	int			ret = 0;

	cpsw_dual_emac_src_port_detect(status, priv, ndev, skb);

	if (unlikely(status < 0) || unlikely(!netif_running(ndev))) {
		bool ndev_status = false;
		struct cpsw_slave *slave = priv->slaves;
		int n;

		if (priv->data.dual_emac) {
			/* In dual emac mode check for all interfaces */
			for (n = priv->data.slaves; n; n--, slave++)
				if (netif_running(slave->ndev))
					ndev_status = true;
		}

		if (ndev_status && (status >= 0)) {
			/* The packet received is for the interface which
                         * is already down and the other interface is up
                         * and running, instead of freeing which results
                         * in reducing of the number of rx descriptor in
                         * DMA engine, requeue skb back to cpdma.
                         */
			new_skb = skb;
			goto requeue;
		}

		/* the interface is going down, skbs are purged */
		dev_kfree_skb_any(skb);
		return;
	}

	new_skb = netdev_alloc_skb_ip_align(ndev, priv->rx_packet_max);
	if (new_skb) {
		skb_put(skb, len);
		cpts_rx_timestamp(priv->cpts, skb);
		skb->protocol = eth_type_trans(skb, ndev);
		netif_receive_skb(skb);
		ndev->stats.rx_bytes += len;
		ndev->stats.rx_packets++;
	} else {
		ndev->stats.rx_dropped++;
		new_skb = skb;
	}

requeue:
	ret = cpdma_chan_submit(priv->rxch, new_skb, new_skb->data,
			skb_tailroom(new_skb), 0);
	if (WARN_ON(ret < 0))
		dev_kfree_skb_any(new_skb);
}

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mugunthan v n
mugunthan v n
231
81.05%
5
50.00%
sebastian andrzej siewior
sebastian andrzej siewior
40
14.04%
1
10.00%
richard cochran
richard cochran
9
3.16%
1
10.00%
tobias klauser
tobias klauser
3
1.05%
1
10.00%
joe perches
joe perches
1
0.35%
1
10.00%
olof johansson
olof johansson
1
0.35%
1
10.00%
Total
285
100.00%
10
100.00%



static irqreturn_t cpsw_tx_interrupt(int irq, void *dev_id)
{
	struct cpsw_priv *priv = dev_id;

	writel(0, &priv->wr_regs->tx_en);
	cpdma_ctlr_eoi(priv->dma, CPDMA_EOI_TX);

	if (priv->quirk_irq) {
		disable_irq_nosync(priv->irqs_table[1]);
		priv->tx_irq_disabled = true;
	}

	napi_schedule(&priv->napi_tx);
	return IRQ_HANDLED;
}

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mugunthan v n
mugunthan v n
55
72.37%
3
75.00%
felipe balbi
felipe balbi
21
27.63%
1
25.00%
Total
76
100.00%
4
100.00%



static irqreturn_t cpsw_rx_interrupt(int irq, void *dev_id)
{
	struct cpsw_priv *priv = dev_id;

	cpdma_ctlr_eoi(priv->dma, CPDMA_EOI_RX);
	writel(0, &priv->wr_regs->rx_en);

	if (priv->quirk_irq) {
		disable_irq_nosync(priv->irqs_table[0]);
		priv->rx_irq_disabled = true;
	}

	napi_schedule(&priv->napi_rx);
	return IRQ_HANDLED;
}

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mugunthan v n
mugunthan v n
46
60.53%
6
66.67%
felipe balbi
felipe balbi
28
36.84%
2
22.22%
sebastian andrzej siewior
sebastian andrzej siewior
2
2.63%
1
11.11%
Total
76
100.00%
9
100.00%



static int cpsw_tx_poll(struct napi_struct *napi_tx, int budget)
{
	struct cpsw_priv	*priv = napi_to_priv(napi_tx);
	int			num_tx;

	num_tx = cpdma_chan_process(priv->txch, budget);
	if (num_tx < budget) {
		napi_complete(napi_tx);
		writel(0xff, &priv->wr_regs->tx_en);
		if (priv->quirk_irq && priv->tx_irq_disabled) {
			priv->tx_irq_disabled = false;
			enable_irq(priv->irqs_table[1]);
		}
	}

	if (num_tx)
		cpsw_dbg(priv, intr, "poll %d tx pkts\n", num_tx);

	return num_tx;
}

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109
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3
100.00%
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109
100.00%
3
100.00%



static int cpsw_rx_poll(struct napi_struct *napi_rx, int budget)
{
	struct cpsw_priv	*priv = napi_to_priv(napi_rx);
	int			num_rx;

	num_rx = cpdma_chan_process(priv->rxch, budget);
	if (num_rx < budget) {
		napi_complete(napi_rx);
		writel(0xff, &priv->wr_regs->rx_en);
		if (priv->quirk_irq && priv->rx_irq_disabled) {
			priv->rx_irq_disabled = false;
			enable_irq(priv->irqs_table[0]);
		}
	}

	if (num_rx)
		cpsw_dbg(priv, intr, "poll %d rx pkts\n", num_rx);

	return num_rx;
}

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mugunthan v n
106
97.25%
8
88.89%
sebastian andrzej siewior
sebastian andrzej siewior
3
2.75%
1
11.11%
Total
109
100.00%
9
100.00%



static inline void soft_reset(const char *module, void __iomem *reg)
{
	unsigned long timeout = jiffies + HZ;

	__raw_writel(1, reg);
	do {
		cpu_relax();
	} while ((__raw_readl(reg) & 1) && time_after(timeout, jiffies));

	WARN(__raw_readl(reg) & 1, "failed to soft-reset %s\n", module);
}

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1
100.00%
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71
100.00%
1
100.00%


#define mac_hi(mac)	(((mac)[0] << 0) | ((mac)[1] << 8) |    \
                         ((mac)[2] << 16) | ((mac)[3] << 24))

#define mac_lo(mac)	(((mac)[4] << 0) | ((mac)[5] << 8))



static void cpsw_set_slave_mac(struct cpsw_slave *slave,
			       struct cpsw_priv *priv)
{
	slave_write(slave, mac_hi(priv->mac_addr), SA_HI);
	slave_write(slave, mac_lo(priv->mac_addr), SA_LO);
}

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mugunthan v n
36
81.82%
1
50.00%
richard cochran
richard cochran
8
18.18%
1
50.00%
Total
44
100.00%
2
100.00%



static void _cpsw_adjust_link(struct cpsw_slave *slave,
			      struct cpsw_priv *priv, bool *link)
{
	struct phy_device	*phy = slave->phy;
	u32			mac_control = 0;
	u32			slave_port;

	if (!phy)
		return;

	slave_port = cpsw_get_slave_port(priv, slave->slave_num);

	if (phy->link) {
		mac_control = priv->data.mac_control;

		/* enable forwarding */
		cpsw_ale_control_set(priv->ale, slave_port,
				     ALE_PORT_STATE, ALE_PORT_STATE_FORWARD);

		if (phy->speed == 1000)
			mac_control |= BIT(7);	/* GIGABITEN    */
		if (phy->duplex)
			mac_control |= BIT(0);	/* FULLDUPLEXEN */

		/* set speed_in input in case RMII mode is used in 100Mbps */
		if (phy->speed == 100)
			mac_control |= BIT(15);
		else if (phy->speed == 10)
			mac_control |= BIT(18); /* In Band mode */

		if (priv->rx_pause)
			mac_control |= BIT(3);

		if (priv->tx_pause)
			mac_control |= BIT(4);

		*link = true;
	} else {
		mac_control = 0;
		/* disable forwarding */
		cpsw_ale_control_set(priv->ale, slave_port,
				     ALE_PORT_STATE, ALE_PORT_STATE_DISABLE);
	}

	if (mac_control != slave->mac_control) {
		phy_print_status(phy);
		__raw_writel(mac_control, &slave->sliver->mac_control);
	}

	slave->mac_control = mac_control;
}

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mugunthan v n
216
93.10%
3
75.00%
daniel mack
daniel mack
16
6.90%
1
25.00%
Total
232
100.00%
4
100.00%



static void cpsw_adjust_link(struct net_device *ndev)
{
	struct cpsw_priv	*priv = netdev_priv(ndev);
	bool			link = false;

	for_each_slave(priv, _cpsw_adjust_link, priv, &link);

	if (link) {
		netif_carrier_on(ndev);
		if (netif_running(ndev))
			netif_wake_queue(ndev);
	} else {
		netif_carrier_off(ndev);
		netif_stop_queue(ndev);
	}
}

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74
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1
100.00%
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74
100.00%
1
100.00%



static int cpsw_get_coalesce(struct net_device *ndev,
				struct ethtool_coalesce *coal)
{
	struct cpsw_priv *priv = netdev_priv(ndev);

	coal->rx_coalesce_usecs = priv->coal_intvl;
	return 0;
}

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37
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1
100.00%



static int cpsw_set_coalesce(struct net_device *ndev,
				struct ethtool_coalesce *coal)
{
	struct cpsw_priv *priv = netdev_priv(ndev);
	u32 int_ctrl;
	u32 num_interrupts = 0;
	u32 prescale = 0;
	u32 addnl_dvdr = 1;
	u32 coal_intvl = 0;

	coal_intvl = coal->rx_coalesce_usecs;

	int_ctrl =  readl(&priv->wr_regs->int_control);
	prescale = priv->bus_freq_mhz * 4;

	if (!coal->rx_coalesce_usecs) {
		int_ctrl &= ~(CPSW_INTPRESCALE_MASK | CPSW_INTPACEEN);
		goto update_return;
	}

	if (coal_intvl < CPSW_CMINTMIN_INTVL)
		coal_intvl = CPSW_CMINTMIN_INTVL;

	if (coal_intvl > CPSW_CMINTMAX_INTVL) {
		/* Interrupt pacer works with 4us Pulse, we can
                 * throttle further by dilating the 4us pulse.
                 */
		addnl_dvdr = CPSW_INTPRESCALE_MASK / prescale;

		if (addnl_dvdr > 1) {
			prescale *= addnl_dvdr;
			if (coal_intvl > (CPSW_CMINTMAX_INTVL * addnl_dvdr))
				coal_intvl = (CPSW_CMINTMAX_INTVL
						* addnl_dvdr);
		} else {
			addnl_dvdr = 1;
			coal_intvl = CPSW_CMINTMAX_INTVL;
		}
	}

	num_interrupts = (1000 * addnl_dvdr) / coal_intvl;
	writel(num_interrupts, &priv->wr_regs->rx_imax);
	writel(num_interrupts, &priv->wr_regs->tx_imax);

	int_ctrl |= CPSW_INTPACEEN;
	int_ctrl &= (~CPSW_INTPRESCALE_MASK);
	int_ctrl |= (prescale & CPSW_INTPRESCALE_MASK);

update_return:
	writel(int_ctrl, &priv->wr_regs->int_control);

	cpsw_notice(priv, timer, "Set coalesce to %d usecs.\n", coal_intvl);
	if (priv->data.dual_emac) {
		int i;

		for (i = 0; i < priv->data.slaves; i++) {
			priv = netdev_priv(priv->slaves[i].ndev);
			priv->coal_intvl = coal_intvl;
		}
	} else {
		priv->coal_intvl = coal_intvl;
	}

	return 0;
}

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304
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3
100.00%
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304
100.00%
3
100.00%



static int cpsw_get_sset_count(struct net_device *ndev, int sset)
{
	switch (sset) {
	case ETH_SS_STATS:
		return CPSW_STATS_LEN;
	default:
		return -EOPNOTSUPP;
	}
}

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31
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1
100.00%
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31
100.00%
1
100.00%



static void cpsw_get_strings(struct net_device *ndev, u32 stringset, u8 *data)
{
	u8 *p = data;
	int i;

	switch (stringset) {
	case ETH_SS_STATS:
		for (i = 0; i < CPSW_STATS_LEN; i++) {
			memcpy(p, cpsw_gstrings_stats[i].stat_string,
			       ETH_GSTRING_LEN);
			p += ETH_GSTRING_LEN;
		}
		break;
	}
}

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70
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2
100.00%
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70
100.00%
2
100.00%



static void cpsw_get_ethtool_stats(struct net_device *ndev,
				    struct ethtool_stats *stats, u64 *data)
{
	struct cpsw_priv *priv = netdev_priv(ndev);
	struct cpdma_chan_stats rx_stats;
	struct cpdma_chan_stats tx_stats;
	u32 val;
	u8 *p;
	int i;

	/* Collect Davinci CPDMA stats for Rx and Tx Channel */
	cpdma_chan_get_stats(priv->rxch, &rx_stats);
	cpdma_chan_get_stats(priv->txch, &tx_stats);

	for (i = 0; i < CPSW_STATS_LEN; i++) {
		switch (cpsw_gstrings_stats[i].type) {
		case CPSW_STATS:
			val = readl(priv->hw_stats +
				    cpsw_gstrings_stats[i].stat_offset);
			data[i] = val;
			break;

		case CPDMA_RX_STATS:
			p = (u8 *)&rx_stats +
				cpsw_gstrings_stats[i].stat_offset;
			data[i] = *(u32 *)p;
			break;

		case CPDMA_TX_STATS:
			p = (u8 *)&tx_stats +
				cpsw_gstrings_stats[i].stat_offset;
			data[i] = *(u32 *)p;
			break;
		}
	}
}

Contributors
Person
Tokens
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mugunthan v n
mugunthan v n
186
100.00%
2
100.00%
Total
186
100.00%
2
100.00%



static int cpsw_common_res_usage_state(struct cpsw_priv *priv)
{
	u32 i;
	u32 usage_count = 0;

	if (!priv->data.dual_emac)
		return 0;

	for (i = 0; i < priv->data.slaves; i++)
		if (priv->slaves[i].open_stat)
			usage_count++;

	return usage_count;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
mugunthan v n
mugunthan v n
61
93.85%
2
66.67%
richard cochran
richard cochran
4
6.15%
1
33.33%
Total
65
100.00%
3
100.00%



static inline int cpsw_tx_packet_submit(struct net_device *ndev,
			struct cpsw_priv *priv, struct sk_buff *skb)
{
	if (!priv->data.dual_emac)
		return cpdma_chan_submit(priv->txch, skb, skb->data,
				  skb->len, 0);

	if (ndev == cpsw_get_slave_ndev(priv, 0))
		return cpdma_chan_submit(priv->txch, skb, skb->data,
				  skb->len, 1);
	else
		return cpdma_chan_submit(priv->txch, skb, skb->data,
				  skb->len, 2);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
mugunthan v n
mugunthan v n
103
100.00%
2
100.00%
Total
103
100.00%
2
100.00%



static inline void cpsw_add_dual_emac_def_ale_entries(
		struct cpsw_priv *priv, struct cpsw_slave *slave,
		u32 slave_port)
{
	u32 port_mask = 1 << slave_port | ALE_PORT_HOST;

	if (priv->version == CPSW_VERSION_1)
		slave_write(slave, slave->port_vlan, CPSW1_PORT_VLAN);
	else
		slave_write(slave, slave->port_vlan, CPSW2_PORT_VLAN);
	cpsw_ale_add_vlan(priv->ale, slave->port_vlan, port_mask,
			  port_mask, port_mask, 0);
	cpsw_ale_add_mcast(priv->ale, priv->ndev->broadcast,
			   port_mask, ALE_VLAN, slave->port_vlan, 0);
	cpsw_ale_add_ucast(priv->ale, priv->mac_addr,
		HOST_PORT_NUM, ALE_VLAN | ALE_SECURE, slave->port_vlan);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
mugunthan v n
mugunthan v n
119
96.75%
2
50.00%
grygorii strashko
grygorii strashko
2
1.63%
1
25.00%
george mccollister
george mccollister
2
1.63%
1
25.00%
Total
123
100.00%
4
100.00%



static void soft_reset_slave(struct cpsw_slave *slave)
{
	char name[32];

	snprintf(name, sizeof(name), "slave-%d", slave->slave_num);
	soft_reset(name, &slave->sliver->soft_reset);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
mugunthan v n
mugunthan v n
37
82.22%
2
66.67%
daniel mack
daniel mack
8
17.78%
1
33.33%
Total
45
100.00%
3
100.00%



static void cpsw_slave_open(struct cpsw_slave *slave, struct cpsw_priv *priv)
{
	u32 slave_port;

	soft_reset_slave(slave);

	/* setup priority mapping */
	__raw_writel(RX_PRIORITY_MAPPING, &slave->sliver->rx_pri_map);

	switch (priv->version) {
	case CPSW_VERSION_1:
		slave_write(slave, TX_PRIORITY_MAPPING, CPSW1_TX_PRI_MAP);
		break;
	case CPSW_VERSION_2:
	case CPSW_VERSION_3:
	case CPSW_VERSION_4:
		slave_write(slave, TX_PRIORITY_MAPPING, CPSW2_TX_PRI_MAP);
		break;
	}

	/* setup max packet size, and mac address */
	__raw_writel(priv->rx_packet_max, &slave->sliver->rx_maxlen);
	cpsw_set_slave_mac(slave, priv);

	slave->mac_control = 0;	/* no link yet */

	slave_port = cpsw_get_slave_port(priv, slave->slave_num);

	if (priv->data.dual_emac)
		cpsw_add_dual_emac_def_ale_entries(priv, slave, slave_port);
	else
		cpsw_ale_add_mcast(priv->ale, priv->ndev->broadcast,
				   1 << slave_port, 0, 0, ALE_MCAST_FWD_2);

	if (slave->data->phy_node) {
		slave->phy = of_phy_connect(priv->ndev, slave->data->phy_node,
				 &cpsw_adjust_link, 0, slave->data->phy_if);
		if (!slave->phy) {
			dev_err(priv->dev, "phy \"%s\" not found on slave %d\n",
				slave->data->phy_node->full_name,
				slave->slave_num);
			return;
		}
	} else {
		slave->phy = phy_connect(priv->ndev, slave->data->phy_id,
				 &cpsw_adjust_link, slave->data->phy_if);
		if (IS_ERR(slave->phy)) {
			dev_err(priv->dev,
				"phy \"%s\" not found on slave %d, err %ld\n",
				slave->data->phy_id, slave->slave_num,
				PTR_ERR(slave->phy));
			slave->phy = NULL;
			return;
		}
	}

	phy_attached_info(slave->phy);

	phy_start(slave->phy);

	/* Configure GMII_SEL register */
	cpsw_phy_sel(&priv->pdev->dev, slave->phy->interface, slave->slave_num);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
mugunthan v n
mugunthan v n
228
68.06%
7
53.85%
david rivshin
david rivshin
50
14.93%
2
15.38%
heiko schocher
heiko schocher
31
9.25%
1
7.69%
daniel mack
daniel mack
23
6.87%
1
7.69%
richard cochran
richard cochran
2
0.60%
1
7.69%
andrew lunn
andrew lunn
1
0.30%
1
7.69%
Total
335
100.00%
13
100.00%



static inline void cpsw_add_default_vlan(struct cpsw_priv *priv)
{
	const int vlan = priv->data.default_vlan;
	u32 reg;
	int i;
	int unreg_mcast_mask;

	reg = (priv->version == CPSW_VERSION_1) ? CPSW1_PORT_VLAN :
	       CPSW2_PORT_VLAN;

	writel(vlan, &priv->host_port_regs->port_vlan);

	for (i = 0; i < priv->data.slaves; i++)
		slave_write(priv->slaves + i, vlan, reg);

	if (priv->ndev->flags & IFF_ALLMULTI)
		unreg_mcast_mask = ALE_ALL_PORTS;
	else
		unreg_mcast_mask = ALE_PORT_1 | ALE_PORT_2;

	cpsw_ale_add_vlan(priv->ale, vlan, ALE_ALL_PORTS,
			  ALE_ALL_PORTS, ALE_ALL_PORTS,
			  unreg_mcast_mask);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
mugunthan v n
mugunthan v n
95
76.00%
3
60.00%
lennart sorensen
lennart sorensen
25
20.00%
1
20.00%
daniel mack
daniel mack
5
4.00%
1
20.00%
Total
125
100.00%
5
100.00%



static void cpsw_init_host_port(struct cpsw_priv *priv)
{
	u32 control_reg;
	u32 fifo_mode;

	/* soft reset the controller and initialize ale */
	soft_reset("cpsw", &priv->regs->soft_reset);
	cpsw_ale_start(priv->ale);

	/* switch to vlan unaware mode */
	cpsw_ale_control_set(priv->ale, HOST_PORT_NUM, ALE_VLAN_AWARE,
			     CPSW_ALE_VLAN_AWARE);
	control_reg = readl(&priv->regs->control);
	control_reg |= CPSW_VLAN_AWARE;
	writel(control_reg, &priv->regs->control);
	fifo_mode = (priv->data.dual_emac) ? CPSW_FIFO_DUAL_MAC_MODE :
		     CPSW_FIFO_NORMAL_MODE;
	writel(fifo_mode, &priv->host_port_regs->tx_in_ctl);

	/* setup host port priority mapping */
	__raw_writel(CPDMA_TX_PRIORITY_MAP,
		     &priv->host_port_regs->cpdma_tx_pri_map);
	__raw_writel(0, &priv->host_port_regs->cpdma_rx_chan_map);

	cpsw_ale_control_set(priv->ale, HOST_PORT_NUM,
			     ALE_PORT_STATE, ALE_PORT_STATE_FORWARD);

	if (!priv->data.dual_emac) {
		cpsw_ale_add_ucast(priv->ale, priv->mac_addr, HOST_PORT_NUM,
				   0, 0);
		cpsw_ale_add_mcast(priv->ale, priv->ndev->broadcast,
				   ALE_PORT_HOST, 0, 0, ALE_MCAST_FWD_2);
	}
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
mugunthan v n
mugunthan v n
188
97.92%
3
75.00%
grygorii strashko
grygorii strashko
4
2.08%
1
25.00%
Total
192
100.00%
4
100.00%



static void cpsw_slave_stop(struct cpsw_slave *slave, struct cpsw_priv *priv)
{
	u32 slave_port;

	slave_port = cpsw_get_slave_port(priv, slave->slave_num);

	if (!slave->phy)
		return;
	phy_stop(slave->phy);
	phy_disconnect(slave->phy);
	slave->phy = NULL;
	cpsw_ale_control_set(priv->ale, slave_port,
			     ALE_PORT_STATE, ALE_PORT_STATE_DISABLE);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
sebastian andrzej siewior
sebastian andrzej siewior
44
61.97%
1
50.00%
schuyler patton
schuyler patton
27
38.03%
1
50.00%
Total
71
100.00%
2
100.00%



static int cpsw_ndo_open(struct net_device *ndev)
{
	struct cpsw_priv *priv = netdev_priv(ndev);
	int i, ret;
	u32 reg;

	pm_runtime_get_sync(&priv->pdev->dev);

	if (!cpsw_common_res_usage_state(priv))
		cpsw_intr_disable(priv);
	netif_carrier_off(ndev);

	reg = priv->version;

	dev_info(priv->dev, "initializing cpsw version %d.%d (%d)\n",
		 CPSW_MAJOR_VERSION(reg), CPSW_MINOR_VERSION(reg),
		 CPSW_RTL_VERSION(reg));

	/* initialize host and slave ports */
	if (!cpsw_common_res_usage_state(priv))
		cpsw_init_host_port(priv);
	for_each_slave(priv, cpsw_slave_open, priv);

	/* Add default VLAN */
	if (!priv->data.dual_emac)
		cpsw_add_default_vlan(priv);
	else
		cpsw_ale_add_vlan(priv->ale, priv->data.default_vlan,
				  ALE_ALL_PORTS, ALE_ALL_PORTS, 0, 0);

	if (!cpsw_common_res_usage_state(priv)) {
		struct cpsw_priv *priv_sl0 = cpsw_get_slave_priv(priv, 0);

		/* setup tx dma to fixed prio and zero offset */
		cpdma_control_set(priv->dma, CPDMA_TX_PRIO_FIXED, 1);
		cpdma_control_set(priv->dma, CPDMA_RX_BUFFER_OFFSET, 0);

		/* disable priority elevation */
		__raw_writel(0, &priv->regs->ptype);

		/* enable statistics collection only on all ports */
		__raw_writel(0x7, &priv->regs->stat_port_en);

		/* Enable internal fifo flow control */
		writel(0x7, &priv->regs->flow_control);

		napi_enable(&priv_sl0->napi_rx);
		napi_enable(&priv_sl0->napi_tx);

		if (priv_sl0->tx_irq_disabled) {
			priv_sl0->tx_irq_disabled = false;
			enable_irq(priv->irqs_table[1]);
		}

		if (priv_sl0->rx_irq_disabled) {
			priv_sl0->rx_irq_disabled = false;
			enable_irq(priv->irqs_table[0]);
		}

		if (WARN_ON(!priv->data.rx_descs))
			priv->data.rx_descs = 128;

		for (i = 0; i < priv->data.rx_descs; i++) {
			struct sk_buff *skb;

			ret = -ENOMEM;
			skb = __netdev_alloc_skb_ip_align(priv->ndev,
					priv->rx_packet_max, GFP_KERNEL);
			if (!skb)
				goto err_cleanup;
			ret = cpdma_chan_submit(priv->rxch, skb, skb->data,
					skb_tailroom(skb), 0);
			if (ret < 0) {
				kfree_skb(skb);
				goto err_cleanup;
			}
		}
		/* continue even if we didn't manage to submit all
                 * receive descs
                 */
		cpsw_info(priv, ifup, "submitted %d rx descriptors\n", i);

		if (cpts_register(&priv->pdev->dev, priv->cpts,
				  priv->data.cpts_clock_mult,
				  priv->data.cpts_clock_shift))
			dev_err(priv->dev, "error registering cpts device\n");

	}

	/* Enable Interrupt pacing if configured */
	if (priv->coal_intvl != 0) {
		struct ethtool_coalesce coal;

		coal.rx_coalesce_usecs = priv->coal_intvl;
		cpsw_set_coalesce(ndev, &coal);
	}

	cpdma_ctlr_start(priv->dma);
	cpsw_intr_enable(priv);

	if (priv->data.dual_emac)
		priv->slaves[priv->emac_port].open_stat = true;
	return 0;

err_cleanup:
	cpdma_ctlr_stop(priv->dma);
	for_each_slave(priv, cpsw_slave_stop, priv);
	pm_runtime_put_sync(&priv->pdev->dev);
	netif_carrier_off(priv->ndev);
	return ret;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
mugunthan v n
mugunthan v n
497
88.91%
13
81.25%
sebastian andrzej siewior
sebastian andrzej siewior
43
7.69%
1
6.25%
grygorii strashko
grygorii strashko
10
1.79%
1
6.25%
richard cochran
richard cochran
9
1.61%
1
6.25%
Total
559
100.00%
16
100.00%



static int cpsw_ndo_stop(struct net_device *ndev)
{
	struct cpsw_priv *priv = netdev_priv(ndev);

	cpsw_info(priv, ifdown, "shutting down cpsw device\n");
	netif_stop_queue(priv->ndev);
	netif_carrier_off(priv->ndev);

	if (cpsw_common_res_usage_state(priv) <= 1) {
		struct cpsw_priv *priv_sl0 = cpsw_get_slave_priv(priv, 0);

		napi_disable(&priv_sl0->napi_rx);
		napi_disable(&priv_sl0->napi_tx);
		cpts_unregister(priv->cpts);
		cpsw_intr_disable(priv);
		cpdma_ctlr_stop(priv->dma);
		cpsw_ale_stop(priv->ale);
	}
	for_each_slave(priv, cpsw_slave_stop, priv);
	pm_runtime_put_sync(&priv->pdev->dev);
	if (priv->data.dual_emac)
		priv->slaves[priv->emac_port].open_stat = false;
	return 0;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
mugunthan v n
mugunthan v n
128
84.21%
5
83.33%
richard cochran
richard cochran
24
15.79%
1
16.67%
Total
152
100.00%
6
100.00%



static netdev_tx_t cpsw_ndo_start_xmit(struct sk_buff *skb,
				       struct net_device *ndev)
{
	struct cpsw_priv *priv = netdev_priv(ndev);
	int ret;

	netif_trans_update(ndev);

	if (skb_padto(skb, CPSW_MIN_PACKET_SIZE)) {
		cpsw_err(priv, tx_err, "packet pad failed\n");
		ndev->stats.tx_dropped++;
		return NETDEV_TX_OK;
	}

	if (skb_shinfo(skb)->tx_flags & SKBTX_HW_TSTAMP &&
				priv->cpts->tx_enable)
		skb_shinfo(skb)->tx_flags |= SKBTX_IN_PROGRESS;

	skb_tx_timestamp(skb);

	ret = cpsw_tx_packet_submit(ndev, priv, skb);
	if (unlikely(ret != 0)) {
		cpsw_err(priv, tx_err, "desc submit failed\n");
		goto fail;
	}

	/* If there is no more tx desc left free then we need to
         * tell the kernel to stop sending us tx frames.
         */
	if (unlikely(!cpdma_check_free_tx_desc(priv->txch)))
		netif_stop_queue(ndev);

	return NETDEV_TX_OK;
fail:
	ndev->stats.tx_dropped++;
	netif_stop_queue(ndev);
	return NETDEV_TX_BUSY;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
mugunthan v n
mugunthan v n
113
67.26%
2
33.33%
richard cochran
richard cochran
49
29.17%
1
16.67%
florian westphal
florian westphal
3
1.79%
1
16.67%
tobias klauser
tobias klauser
2
1.19%
1
16.67%
daniel mack
daniel mack
1
0.60%
1
16.67%
Total
168
100.00%
6
100.00%

#ifdef CONFIG_TI_CPTS



static void cpsw_hwtstamp_v1(struct cpsw_priv *priv)
{
	struct cpsw_slave *slave = &priv->slaves[priv->data.active_slave];
	u32 ts_en, seq_id;

	if (!priv->cpts->tx_enable && !priv->cpts->rx_enable) {
		slave_write(slave, 0, CPSW1_TS_CTL);
		return;
	}

	seq_id = (30 << CPSW_V1_SEQ_ID_OFS_SHIFT) | ETH_P_1588;
	ts_en = EVENT_MSG_BITS << CPSW_V1_MSG_TYPE_OFS;

	if (priv->cpts->tx_enable)
		ts_en |= CPSW_V1_TS_TX_EN;

	if (priv->cpts->rx_enable)
		ts_en |= CPSW_V1_TS_RX_EN;

	slave_write(slave, ts_en, CPSW1_TS_CTL);
	slave_write(slave, seq_id, CPSW1_TS_SEQ_LTYPE);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
mugunthan v n
mugunthan v n
85
71.43%
2
66.67%
richard cochran
richard cochran
34
28.57%
1
33.33%
Total
119
100.00%
3
100.00%



static void cpsw_hwtstamp_v2(struct cpsw_priv *priv)
{
	struct cpsw_slave *slave;
	u32 ctrl, mtype;

	if (priv->data.dual_emac)
		slave = &priv->slaves[priv->emac_port];
	else
		slave = &priv->slaves[priv->data.active_slave];

	ctrl = slave_read(slave, CPSW2_CONTROL);
	switch (priv->version) {
	case CPSW_VERSION_2:
		ctrl &= ~CTRL_V2_ALL_TS_MASK;

		if (priv->cpts->tx_enable)
			ctrl |= CTRL_V2_TX_TS_BITS;

		if (priv->cpts->rx_enable)
			ctrl |= CTRL_V2_RX_TS_BITS;
		break;
	case CPSW_VERSION_3:
	default:
		ctrl &= ~CTRL_V3_ALL_TS_MASK;

		if (priv->cpts->tx_enable)
			ctrl |= CTRL_V3_TX_TS_BITS;

		if (priv->cpts->rx_enable)
			ctrl |= CTRL_V3_RX_TS_BITS;
		break;
	}

	mtype = (30 << TS_SEQ_ID_OFFSET_SHIFT) | EVENT_MSG_BITS;

	slave_write(slave, mtype, CPSW2_TS_SEQ_MTYPE);
	slave_write(slave, ctrl, CPSW2_CONTROL);
	__raw_writel(ETH_P_1588, &priv->regs->ts_ltype);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
mugunthan v n
mugunthan v n
115
63.89%
3
60.00%
george cherian
george cherian
49
27.22%
1
20.00%
richard cochran
richard cochran
16
8.89%
1
20.00%
Total
180
100.00%
5
100.00%



static int cpsw_hwtstamp_set(struct net_device *dev, struct ifreq *ifr)
{
	struct cpsw_priv *priv = netdev_priv(dev);
	struct cpts *cpts = priv->cpts;
	struct hwtstamp_config cfg;

	if (priv->version != CPSW_VERSION_1 &&
	    priv->version != CPSW_VERSION_2 &&
	    priv->version != CPSW_VERSION_3)
		return -EOPNOTSUPP;

	if (copy_from_user(&cfg, ifr->ifr_data, sizeof(cfg)))
		return -EFAULT;

	/* reserved for future extensions */
	if (cfg.flags)
		return -EINVAL;

	if (cfg.tx_type != HWTSTAMP_TX_OFF && cfg.tx_type != HWTSTAMP_TX_ON)
		return -ERANGE;

	switch (cfg.rx_filter) {
	case HWTSTAMP_FILTER_NONE:
		cpts->rx_enable = 0;
		break;
	case HWTSTAMP_FILTER_ALL:
	case HWTSTAMP_FILTER_PTP_V1_L4_EVENT:
	case HWTSTAMP_FILTER_PTP_V1_L4_SYNC:
	case HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ:
		return -ERANGE;
	case HWTSTAMP_FILTER_PTP_V2_L4_EVENT:
	case HWTSTAMP_FILTER_PTP_V2_L4_SYNC:
	case HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ:
	case HWTSTAMP_FILTER_PTP_V2_L2_EVENT:
	case HWTSTAMP_FILTER_PTP_V2_L2_SYNC:
	case HWTSTAMP_FILTER_PTP_V2_L2_DELAY_REQ:
	case HWTSTAMP_FILTER_PTP_V2_EVENT:
	case HWTSTAMP_FILTER_PTP_V2_SYNC:
	case HWTSTAMP_FILTER_PTP_V2_DELAY_REQ:
		cpts->rx_enable = 1;
		cfg.rx_filter = HWTSTAMP_FILTER_PTP_V2_EVENT;
		break;
	default:
		return -ERANGE;
	}

	cpts->tx_enable = cfg.tx_type == HWTSTAMP_TX_ON;

	switch (priv->version) {
	case CPSW_VERSION_1:
		cpsw_hwtstamp_v1(priv);
		break;
	case CPSW_VERSION_2:
	case CPSW_VERSION_3:
		cpsw_hwtstamp_v2(priv);
		break;
	default:
		WARN_ON(1);
	}

	return copy_to_user(ifr->ifr_data, &cfg, sizeof(cfg)) ? -EFAULT : 0;
}

Contributors
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mugunthan v n
mugunthan v n
207
80.23%
2
40.00%
ben hutchings
ben hutchings
42
16.28%
2
40.00%
george cherian
george cherian
9
3.49%
1
20.00%
Total
258
100.00%
5
100.00%



static int cpsw_hwtstamp_get(struct net_device *dev, struct ifreq *ifr)
{
	struct cpsw_priv *priv = netdev_priv(dev);
	struct cpts *cpts = priv->cpts;
	struct hwtstamp_config cfg;

	if (priv->version != CPSW_VERSION_1 &&
	    priv->version != CPSW_VERSION_2 &&
	    priv->version != CPSW_VERSION_3)
		return -EOPNOTSUPP;

	cfg.flags = 0;
	cfg.tx_type = cpts->tx_enable ? HWTSTAMP_TX_ON : HWTSTAMP_TX_OFF;
	cfg.rx_filter = (cpts->rx_enable ?
			 HWTSTAMP_FILTER_PTP_V2_EVENT : HWTSTAMP_FILTER_NONE);

	return copy_to_user(ifr->ifr_data, &cfg, sizeof(cfg)) ? -EFAULT : 0;
}

Contributors
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ben hutchings
ben hutchings
110
94.83%
1
50.00%
george cherian
george cherian
6
5.17%
1
50.00%
Total
116
100.00%
2
100.00%

#endif /*CONFIG_TI_CPTS*/



static int cpsw_ndo_ioctl(struct net_device *dev, struct ifreq *req, int cmd)
{
	struct cpsw_priv *priv = netdev_priv(dev);
	int slave_no = cpsw_slave_index(priv);

	if (!netif_running(dev))
		return -EINVAL;

	switch (cmd) {
#ifdef CONFIG_TI_CPTS
	case SIOCSHWTSTAMP:
		return cpsw_hwtstamp_set(dev, req);
	case SIOCGHWTSTAMP:
		return cpsw_hwtstamp_get(dev, req);
#endif
	}

	if (!priv->slaves[slave_no].phy)
		return -EOPNOTSUPP;
	return phy_mii_ioctl(priv->slaves[slave_no].phy, req, cmd);
}

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mugunthan v n
mugunthan v n
82
71.30%
3
60.00%
stefan sorensen
stefan sorensen
21
18.26%
1
20.00%
ben hutchings
ben hutchings
12
10.43%
1
20.00%
Total
115
100.00%
5
100.00%



static void cpsw_ndo_tx_timeout(struct net_device *ndev)
{
	struct cpsw_priv *priv = netdev_priv(ndev);

	cpsw_err(priv, tx_err, "transmit timeout, restarting dma\n");
	ndev->stats.tx_errors++;
	cpsw_intr_disable(priv);
	cpdma_chan_stop(priv->txch);
	cpdma_chan_start(priv->txch);
	cpsw_intr_enable(priv);
}

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mugunthan v n
mugunthan v n
60
98.36%
2
66.67%
tobias klauser
tobias klauser
1
1.64%
1
33.33%
Total
61
100.00%
3
100.00%



static int cpsw_ndo_set_mac_address(struct net_device *ndev, void *p)
{
	struct cpsw_priv *priv = netdev_priv(ndev);
	struct sockaddr *addr = (struct sockaddr *)p;
	int flags = 0;
	u16 vid = 0;

	if (!is_valid_ether_addr(addr->sa_data))
		return -EADDRNOTAVAIL;

	if (priv->data.dual_emac) {
		vid = priv->slaves[priv->emac_port].port_vlan;
		flags = ALE_VLAN;
	}

	cpsw_ale_del_ucast(priv->ale, priv->mac_addr, HOST_PORT_NUM,
			   flags, vid);
	cpsw_ale_add_ucast(priv->ale, addr->sa_data, HOST_PORT_NUM,
			   flags, vid);

	memcpy(priv->mac_addr, addr->sa_data, ETH_ALEN);
	memcpy(ndev->dev_addr, priv->mac_addr, ETH_ALEN);
	for_each_slave(priv, cpsw_set_slave_mac, priv);

	return 0;
}

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mugunthan v n
mugunthan v n
158
98.75%
1
50.00%
grygorii strashko
grygorii strashko
2
1.25%
1
50.00%
Total
160
100.00%
2
100.00%

#ifdef CONFIG_NET_POLL_CONTROLLER


static void cpsw_ndo_poll_controller(struct net_device *ndev)
{
	struct cpsw_priv *priv = netdev_priv(ndev);

	cpsw_intr_disable(priv);
	cpsw_rx_interrupt(priv->irqs_table[0], priv);
	cpsw_tx_interrupt(priv->irqs_table[1], priv);
	cpsw_intr_enable(priv);
}
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mugunthan v n
mugunthan v n
37
67.27%
2
50.00%
felipe balbi
felipe balbi
18
32.73%
2
50.00%
Total
55
100.00%
4
100.00%

#endif



static inline int cpsw_add_vlan_ale_entry(struct cpsw_priv *priv,
				unsigned short vid)
{
	int ret;
	int unreg_mcast_mask = 0;
	u32 port_mask;

	if (priv->data.dual_emac) {
		port_mask = (1 << (priv->emac_port + 1)) | ALE_PORT_HOST;

		if (priv->ndev->flags & IFF_ALLMULTI)
			unreg_mcast_mask = port_mask;
	} else {
		port_mask = ALE_ALL_PORTS;

		if (priv->ndev->flags & IFF_ALLMULTI)
			unreg_mcast_mask = ALE_ALL_PORTS;
		else
			unreg_mcast_mask = ALE_PORT_1 | ALE_PORT_2;
	}

	ret = cpsw_ale_add_vlan(priv->ale, vid, port_mask, 0, port_mask,
				unreg_mcast_mask);
	if (ret != 0)
		return ret;

	ret = cpsw_ale_add_ucast(priv->ale, priv->mac_addr,
				 HOST_PORT_NUM, ALE_VLAN, vid);
	if (ret != 0)
		goto clean_vid;

	ret = cpsw_ale_add_mcast(priv->ale, priv->ndev->broadcast,
				 port_mask, ALE_VLAN, vid, 0);
	if (ret != 0)
		goto clean_vlan_ucast;
	return 0;

clean_vlan_ucast:
	cpsw_ale_del_ucast(priv->ale, priv->mac_addr,
			   HOST_PORT_NUM, ALE_VLAN, vid);
clean_vid:
	cpsw_ale_del_vlan(priv->ale, vid, 0);
	return ret;
}

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mugunthan v n
172
77.83%
2
40.00%
lennart sorensen
lennart sorensen
25
11.31%
1
20.00%
richard cochran
richard cochran
22
9.95%
1
20.00%
grygorii strashko
grygorii strashko
2
0.90%
1
20.00%
Total
221
100.00%
5
100.00%



static int cpsw_ndo_vlan_rx_add_vid(struct net_device *ndev,
				    __be16 proto, u16 vid)
{
	struct cpsw_priv *priv = netdev_priv(ndev);

	if (vid == priv->data.default_vlan)
		return 0;

	if (priv->data.dual_emac) {
		/* In dual EMAC, reserved VLAN id should not be used for
                 * creating VLAN interfaces as this can break the dual
                 * EMAC port separation
                 */
		int i;

		for (i = 0; i < priv->data.slaves; i++) {
			if (vid == priv->slaves[i].port_vlan)
				return -EINVAL;
		}
	}

	dev_info(priv->dev, "Adding vlanid %d to vlan filter\n", vid);
	return cpsw_add_vlan_ale_entry(priv, vid);
}

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mugunthan v n
mugunthan v n
105
96.33%
3
75.00%
patrick mchardy
patrick mchardy
4
3.67%
1
25.00%
Total
109
100.00%
4
100.00%



static int cpsw_ndo_vlan_rx_kill_vid(struct net_device *ndev,
				     __be16 proto, u16 vid)
{
	struct cpsw_priv *priv = netdev_priv(ndev);
	int ret;

	if (vid == priv->data.default_vlan)
		return 0;

	if (priv->data.dual_emac) {
		int i;

		for (i = 0; i < priv->data.slaves; i++) {
			if (vid == priv->slaves[i].port_vlan)
				return -EINVAL;
		}
	}

	dev_info(priv->dev, "removing vlanid %d from vlan filter\n", vid);
	ret = cpsw_ale_del_vlan(priv->ale, vid, 0);
	if (ret != 0)
		return ret;

	ret = cpsw_ale_del_ucast(priv->ale, priv->mac_addr,
				 HOST_PORT_NUM, ALE_VLAN, vid);
	if (ret != 0)
		return ret;

	return cpsw_ale_del_mcast(priv->ale, priv->ndev->broadcast,
				  0, ALE_VLAN, vid);
}

Contributors
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mugunthan v n
mugunthan v n
167
96.53%
3
50.00%
patrick mchardy
patrick mchardy
4
2.31%
1
16.67%
richard cochran
richard cochran
1
0.58%
1
16.67%
grygorii strashko
grygorii strashko
1
0.58%
1
16.67%
Total
173
100.00%
6
100.00%


static const struct net_device_ops cpsw_netdev_ops = {
	.ndo_open		= cpsw_ndo_open,
	.ndo_stop		= cpsw_ndo_stop,
	.ndo_start_xmit		= cpsw_ndo_start_xmit,
	.ndo_set_mac_address	= cpsw_ndo_set_mac_address,
	.ndo_do_ioctl		= cpsw_ndo_ioctl,
	.ndo_validate_addr	= eth_validate_addr,
	.ndo_change_mtu		= eth_change_mtu,
	.ndo_tx_timeout		= cpsw_ndo_tx_timeout,
	.ndo_set_rx_mode	= cpsw_ndo_set_rx_mode,
#ifdef CONFIG_NET_POLL_CONTROLLER
	.ndo_poll_controller	= cpsw_ndo_poll_controller,
#endif
	.ndo_vlan_rx_add_vid	= cpsw_ndo_vlan_rx_add_vid,
	.ndo_vlan_rx_kill_vid	= cpsw_ndo_vlan_rx_kill_vid,
};



static int cpsw_get_regs_len(struct net_device *ndev)
{
	struct cpsw_priv *priv = netdev_priv(ndev);

	return priv->data.ale_entries * ALE_ENTRY_WORDS * sizeof(u32);
}

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mugunthan v n
35
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1
100.00%
Total
35
100.00%
1
100.00%



static void cpsw_get_regs(struct net_device *ndev,
			  struct ethtool_regs *regs, void *p)
{
	struct cpsw_priv *priv = netdev_priv(ndev);
	u32 *reg = p;

	/* update CPSW IP version */
	regs->version = priv->version;

	cpsw_ale_dump(priv->ale, reg);
}

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54
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1
100.00%
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54
100.00%
1
100.00%



static void cpsw_get_drvinfo(struct net_device *ndev,
			     struct ethtool_drvinfo *info)
{
	struct cpsw_priv *priv = netdev_priv(ndev);

	strlcpy(info->driver, "cpsw", sizeof(info->driver));
	strlcpy(info->version, "1.0", sizeof(info->version));
	strlcpy(info->bus_info, priv->pdev->name, sizeof(info->bus_info));
}

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78
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2
100.00%
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78
100.00%
2
100.00%



static u32 cpsw_get_msglevel(struct net_device *ndev)
{
	struct cpsw_priv *priv = netdev_priv(ndev);
	return priv->msg_enable;
}

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static void cpsw_set_msglevel(struct net_device *ndev, u32 value)
{
	struct cpsw_priv *priv = netdev_priv(ndev);
	priv->msg_enable = value;
}

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30
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static int cpsw_get_ts_info(struct net_device *ndev,
			    struct ethtool_ts_info *info)
{
#ifdef CONFIG_TI_CPTS
	struct cpsw_priv *priv = netdev_priv(ndev);

	info->so_timestamping =
		SOF_TIMESTAMPING_TX_HARDWARE |
		SOF_TIMESTAMPING_TX_SOFTWARE |
		SOF_TIMESTAMPING_RX_HARDWARE |
		SOF_TIMESTAMPING_RX_SOFTWARE |
		SOF_TIMESTAMPING_SOFTWARE |
		SOF_TIMESTAMPING_RAW_HARDWARE;
	info->phc_index = priv->cpts->phc_index;
	info->tx_types =
		(1 << HWTSTAMP_TX_OFF) |
		(1 << HWTSTAMP_TX_ON);
	info->rx_filters =
		(1 << HWTSTAMP_FILTER_NONE) |
		(1 << HWTSTAMP_FILTER_PTP_V2_EVENT);
#else
	info->so_timestamping =
		SOF_TIMESTAMPING_TX_SOFTWARE |
		SOF_TIMESTAMPING_RX_SOFTWARE |
		SOF_TIMESTAMPING_SOFTWARE;
	info->phc_index = -1;
	info->tx_types = 0;
	info->rx_filters = 0;
#endif
	return 0;
}

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123
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1
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static int cpsw_get_settings(struct net_device *ndev,
			     struct ethtool_cmd *ecmd)
{
	struct cpsw_priv *priv = netdev_priv(ndev);
	int slave_no = cpsw_slave_index(priv);

	if (priv->slaves[slave_no].phy)
		return phy_ethtool_gset(priv->slaves[slave_no].phy, ecmd);
	else
		return -EOPNOTSUPP;
}

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65
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static int cpsw_set_settings(struct net_device *ndev, struct ethtool_cmd *ecmd)
{
	struct cpsw_priv *priv = netdev_priv(ndev);
	int slave_no = cpsw_slave_index(priv);

	if (priv->slaves[slave_no].phy)
		return phy_ethtool_sset(priv->slaves[slave_no].phy, ecmd);
	else
		return -EOPNOTSUPP;
}

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65
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static void cpsw_get_wol(struct net_device *ndev, struct ethtool_wolinfo *wol)
{
	struct cpsw_priv *priv = netdev_priv(ndev);
	int slave_no = cpsw_slave_index(priv);

	wol->supported = 0;
	wol->wolopts = 0;

	if (priv->slaves[slave_no].phy)
		phy_ethtool_get_wol(priv->slaves[slave_no].phy, wol);
}

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static int cpsw_set_wol(struct net_device *ndev, struct ethtool_wolinfo *wol)
{
	struct cpsw_priv *priv = netdev_priv(ndev);
	int slave_no = cpsw_slave_index(priv);

	if (priv->slaves[slave_no].phy)
		return phy_ethtool_set_wol(priv->slaves[slave_no].phy, wol);
	else
		return -EOPNOTSUPP;
}

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65
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static void cpsw_get_pauseparam(struct net_device *ndev,
				struct ethtool_pauseparam *pause)
{
	struct cpsw_priv *priv = netdev_priv(ndev);

	pause->autoneg = AUTONEG_DISABLE;
	pause->rx_pause = priv->rx_pause ? true : false;
	pause->tx_pause = priv->tx_pause ? true : false;
}

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static int cpsw_set_pauseparam(struct net_device *ndev,
			       struct ethtool_pauseparam *pause)
{
	struct cpsw_priv *priv = netdev_priv(ndev);
	bool link;

	priv->rx_pause = pause->rx_pause ? true : false;
	priv->tx_pause = pause->tx_pause ? true : false;

	for_each_slave(priv, _cpsw_adjust_link, priv, &link);

	return 0;
}

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static const struct ethtool_ops cpsw_ethtool_ops = {
	.get_drvinfo	= cpsw_get_drvinfo,
	.get_msglevel	= cpsw_get_msglevel,
	.set_msglevel	= cpsw_set_msglevel,
	.get_link	= ethtool_op_get_link,
	.get_ts_info	= cpsw_get_ts_info,
	.get_settings	= cpsw_get_settings,
	.set_settings	= cpsw_set_settings,
	.get_coalesce	= cpsw_get_coalesce,
	.set_coalesce	= cpsw_set_coalesce,
	.get_sset_count		= cpsw_get_sset_count,
	.get_strings		= cpsw_get_strings,
	.get_ethtool_stats	= cpsw_get_ethtool_stats,
	.get_pauseparam		= cpsw_get_pauseparam,
	.set_pauseparam		= cpsw_set_pauseparam,
	.get_wol	= cpsw_get_wol,
	.set_wol	= cpsw_set_wol,
	.get_regs_len	= cpsw_get_regs_len,
	.get_regs	= cpsw_get_regs,
};



static void cpsw_slave_init(struct cpsw_slave *slave, struct cpsw_priv *priv,
			    u32 slave_reg_ofs, u32 sliver_reg_ofs)
{
	void __iomem		*regs = priv->regs;
	int			slave_num = slave->slave_num;
	struct cpsw_slave_data	*data = priv->data.slave_data + slave_num;

	slave->data	= data;
	slave->regs	= regs + slave_reg_ofs;
	slave->sliver	= regs + sliver_reg_ofs;
	slave->port_vlan = data->dual_emac_res_vlan;
}

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81
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2
100.00%



static int cpsw_probe_dt(struct cpsw_platform_data *data,
			 struct platform_device *pdev)
{
	struct device_node *node = pdev->dev.of_node;
	struct device_node *slave_node;
	int i = 0, ret;
	u32 prop;

	if (!node)
		return -EINVAL;

	if (of_property_read_u32(node, "slaves", &prop)) {
		dev_err(&pdev->dev, "Missing slaves property in the DT.\n");
		return -EINVAL;
	}
	data->slaves = prop;

	if (of_property_read_u32(node, "active_slave", &prop)) {
		dev_err(&pdev->dev, "Missing active_slave property in the DT.\n");
		return -EINVAL;
	}
	data->active_slave = prop;

	if (of_property_read_u32(node, "cpts_clock_mult", &prop)) {
		dev_err(&pdev->dev, "Missing cpts_clock_mult property in the DT.\n");
		return -EINVAL;
	}
	data->cpts_clock_mult = prop;

	if (of_property_read_u32(node, "cpts_clock_shift", &prop)) {
		dev_err(&pdev->dev, "Missing cpts_clock_shift property in the DT.\n");
		return -EINVAL;
	}
	data->cpts_clock_shift = prop;

	data->slave_data = devm_kzalloc(&pdev->dev, data->slaves
					* sizeof(struct cpsw_slave_data),
					GFP_KERNEL);
	if (!data->slave_data)
		return -ENOMEM;

	if (of_property_read_u32(node, "cpdma_channels", &prop)) {
		dev_err(&pdev->dev, "Missing cpdma_channels property in the DT.\n");
		return -EINVAL;
	}
	data->channels = prop;

	if (of_property_read_u32(node, "ale_entries", &prop)) {
		dev_err(&pdev->dev, "Missing ale_entries property in the DT.\n");
		return -EINVAL;
	}
	data->ale_entries = prop;

	if (of_property_read_u32(node, "bd_ram_size", &prop)) {
		dev_err(&pdev->dev, "Missing bd_ram_size property in the DT.\n");
		return -EINVAL;
	}
	data->bd_ram_size = prop;

	if (of_property_read_u32(node, "rx_descs", &prop)) {
		dev_err(&pdev->dev, "Missing rx_descs property in the DT.\n");
		return -EINVAL;
	}
	data->rx_descs = prop;

	if (of_property_read_u32(node, "mac_control", &prop)) {
		dev_err(&pdev->dev, "Missing mac_control property in the DT.\n");
		return -EINVAL;
	}
	data->mac_control = prop;

	if (of_property_read_bool(node, "dual_emac"))
		data->dual_emac = 1;

	/*
         * Populate all the child nodes here...
         */
	ret = of_platform_populate(node, NULL, NULL, &pdev->dev);
	/* We do not want to force this, as in some cases may not have child */
	if (ret)
		dev_warn(&pdev->dev, "Doesn't have any child node\n");

	for_each_child_of_node(node, slave_node) {
		struct cpsw_slave_data *slave_data = data->slave_data + i;
		const void *mac_addr = NULL;
		int lenp;
		const __be32 *parp;

		/* This is no slave child node, continue */
		if (strcmp(slave_node->name, "slave"))
			continue;

		slave_data->phy_node = of_parse_phandle(slave_node,
							"phy-handle", 0);
		parp = of_get_property(slave_node, "phy_id", &lenp);
		if (slave_data->phy_node) {
			dev_dbg(&pdev->dev,
				"slave[%d] using phy-handle=\"%s\"\n",
				i, slave_data->phy_node->full_name);
		} else if (of_phy_is_fixed_link(slave_node)) {
			/* In the case of a fixed PHY, the DT node associated
                         * to the PHY is the Ethernet MAC DT node.
                         */
			ret = of_phy_register_fixed_link(slave_node);
			if (ret)
				return ret;
			slave_data->phy_node = of_node_get(slave_node);
		} else if (parp) {
			u32 phyid;
			struct device_node *mdio_node;
			struct platform_device *mdio;

			if (lenp != (sizeof(__be32) * 2)) {
				dev_err(&pdev->dev, "Invalid slave[%d] phy_id property\n", i);
				goto no_phy_slave;
			}
			mdio_node = of_find_node_by_phandle(be32_to_cpup(parp));
			phyid = be32_to_cpup(parp+1);
			mdio = of_find_device_by_node(mdio_node);
			of_node_put(mdio_node);
			if (!mdio) {
				dev_err(&pdev->dev, "Missing mdio platform device\n");
				return -EINVAL;
			}
			snprintf(slave_data->phy_id, sizeof(slave_data->phy_id),
				 PHY_ID_FMT, mdio->name, phyid);
		} else {
			dev_err(&pdev->dev,
				"No slave[%d] phy_id, phy-handle, or fixed-link property\n",
				i);
			goto no_phy_slave;
		}
		slave_data->phy_if = of_get_phy_mode(slave_node);
		if (slave_data->phy_if < 0) {
			dev_err(&pdev->dev, "Missing or malformed slave[%d] phy-mode property\n",
				i);
			return slave_data->phy_if;
		}

no_phy_slave:
		mac_addr = of_get_mac_address(slave_node);
		if (mac_addr) {
			memcpy(slave_data->mac_addr, mac_addr, ETH_ALEN);
		} else {
			ret = ti_cm_get_macid(&pdev->dev, i,
					      slave_data->mac_addr);
			if (ret)
				return ret;
		}
		if (data->dual_emac) {
			if (of_property_read_u32(slave_node, "dual_emac_res_vlan",
						 &prop)) {
				dev_err(&pdev->dev, "Missing dual_emac_res_vlan in DT.\n");
				slave_data->dual_emac_res_vlan = i+1;
				dev_err(&pdev->dev, "Using %d as Reserved VLAN for %d slave\n",
					slave_data->dual_emac_res_vlan, i);
			} else {
				slave_data->dual_emac_res_vlan = prop;
			}
		}

		i++;
		if (i == data->slaves)
			break;
	}

	return 0;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
mugunthan v n
mugunthan v n
580
65.83%
7
29.17%
david rivshin
david rivshin
86
9.76%
5
20.83%
george cherian
george cherian
78
8.85%
1
4.17%
markus pargmann
markus pargmann
51
5.79%
4
16.67%
markus brunner
markus brunner
28
3.18%
1
4.17%
daniel mack
daniel mack
24
2.72%
1
4.17%
heiko schocher
heiko schocher
12
1.36%
1
4.17%
johan hovold
johan hovold
11
1.25%
2
8.33%
stefan roese
stefan roese
9
1.02%
1
4.17%
uwe kleine-koenig
uwe kleine-koenig
2
0.23%
1
4.17%
Total
881
100.00%
24
100.00%



static int cpsw_probe_dual_emac(struct platform_device *pdev,
				struct cpsw_priv *priv)
{
	struct cpsw_platform_data	*data = &priv->data;
	struct net_device		*ndev;
	struct cpsw_priv		*priv_sl2;
	int ret = 0, i;

	ndev = alloc_etherdev(sizeof(struct cpsw_priv));
	if (!ndev) {
		dev_err(&pdev->dev, "cpsw: error allocating net_device\n");
		return -ENOMEM;
	}

	priv_sl2 = netdev_priv(ndev);
	spin_lock_init(&priv_sl2->lock);
	priv_sl2->data = *data;
	priv_sl2->pdev = pdev;
	priv_sl2->ndev = ndev;
	priv_sl2->dev  = &ndev->dev;
	priv_sl2->msg_enable = netif_msg_init(debug_level, CPSW_DEBUG);
	priv_sl2->rx_packet_max = max(rx_packet_max, 128);

	if (is_valid_ether_addr(data->slave_data[1].mac_addr)) {
		memcpy(priv_sl2->mac_addr, data->slave_data[1].mac_addr,
			ETH_ALEN);
		dev_info(&pdev->dev, "cpsw: Detected MACID = %pM\n", priv_sl2->mac_addr);
	} else {
		random_ether_addr(priv_sl2->mac_addr);
		dev_info(&pdev->dev, "cpsw: Random MACID = %pM\n", priv_sl2->mac_addr);
	}
	memcpy(ndev->dev_addr, priv_sl2->mac_addr, ETH_ALEN);

	priv_sl2->slaves = priv->slaves;
	priv_sl2->clk = priv->clk;

	priv_sl2->coal_intvl = 0;
	priv_sl2->bus_freq_mhz = priv->bus_freq_mhz;

	priv_sl2->regs = priv->regs;
	priv_sl2->host_port_regs = priv->host_port_regs;
	priv_sl2->wr_regs = priv->wr_regs;
	priv_sl2->hw_stats = priv->hw_stats;
	priv_sl2->dma = priv->dma;
	priv_sl2->txch = priv->txch;
	priv_sl2->rxch = priv->rxch;
	priv_sl2->ale = priv->ale;
	priv_sl2->emac_port = 1;
	priv->slaves[1].ndev = ndev;
	priv_sl2->cpts = priv->cpts;
	priv_sl2->version = priv->version;

	for (i = 0; i < priv->num_irqs; i++) {
		priv_sl2->irqs_table[i] = priv->irqs_table[i];
		priv_sl2->num_irqs = priv->num_irqs;
	}
	ndev->features |= NETIF_F_HW_VLAN_CTAG_FILTER;

	ndev->netdev_ops = &cpsw_netdev_ops;
	ndev->ethtool_ops = &cpsw_ethtool_ops;

	/* register the network device */
	SET_NETDEV_DEV(ndev, &pdev->dev);
	ret = register_netdev(ndev);
	if (ret) {
		dev_err(&pdev->dev, "cpsw: error registering net device\n");
		free_netdev(ndev);
		ret = -ENODEV;
	}

	return ret;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
mugunthan v n
mugunthan v n
406
88.65%
5
41.67%
george cherian
george cherian
24
5.24%
1
8.33%
richard cochran
richard cochran
23
5.02%
3
25.00%
wilfried klaebe
wilfried klaebe
3
0.66%
1
8.33%
joe perches
joe perches
1
0.22%
1
8.33%
patrick mchardy
patrick mchardy
1
0.22%
1
8.33%
Total
458
100.00%
12
100.00%


#define CPSW_QUIRK_IRQ		BIT(0)


static struct platform_device_id cpsw_devtype[] = {
	{
		/* keep it for existing comaptibles */
		.name = "cpsw",
		.driver_data = CPSW_QUIRK_IRQ,
        }, {
		.name = "am335x-cpsw",
		.driver_data = CPSW_QUIRK_IRQ,
        }, {
		.name = "am4372-cpsw",
		.driver_data = 0,
        }, {
		.name = "dra7-cpsw",
		.driver_data = 0,
        }, {
		/* sentinel */
	}
};
MODULE_DEVICE_TABLE(platform, cpsw_devtype);


enum ti_cpsw_type {
	
CPSW = 0,
	
AM335X_CPSW,
	
AM4372_CPSW,
	
DRA7_CPSW,
};


static const struct of_device_id cpsw_of_mtable[] = {
	{ .compatible = "ti,cpsw", .data = &cpsw_devtype[CPSW], },
	{ .compatible = "ti,am335x-cpsw", .data = &cpsw_devtype[AM335X_CPSW], },
	{ .compatible = "ti,am4372-cpsw", .data = &cpsw_devtype[AM4372_CPSW], },
	{ .compatible = "ti,dra7-cpsw", .data = &cpsw_devtype[DRA7_CPSW], },
	{ /* sentinel */ },
};
MODULE_DEVICE_TABLE(of, cpsw_of_mtable);



static int cpsw_probe(struct platform_device *pdev)
{
	struct cpsw_platform_data	*data;
	struct net_device		*ndev;
	struct cpsw_priv		*priv;
	struct cpdma_params		dma_params;
	struct cpsw_ale_params		ale_params;
	void __iomem			*ss_regs;
	struct resource			*res, *ss_res;
	const struct of_device_id	*of_id;
	struct gpio_descs		*mode;
	u32 slave_offset, sliver_offset, slave_size;
	int ret = 0, i;
	int irq;

	ndev = alloc_etherdev(sizeof(struct cpsw_priv));
	if (!ndev) {
		dev_err(&pdev->dev, "error allocating net_device\n");
		return -ENOMEM;
	}

	platform_set_drvdata(pdev, ndev);
	priv = netdev_priv(ndev);
	spin_lock_init(&priv->lock);
	priv->pdev = pdev;
	priv->ndev = ndev;
	priv->dev  = &ndev->dev;
	priv->msg_enable = netif_msg_init(debug_level, CPSW_DEBUG);
	priv->rx_packet_max = max(rx_packet_max, 128);
	priv->cpts = devm_kzalloc(&pdev->dev, sizeof(struct cpts), GFP_KERNEL);
	if (!priv->cpts) {
		dev_err(&pdev->dev, "error allocating cpts\n");
		ret = -ENOMEM;
		goto clean_ndev_ret;
	}

	mode = devm_gpiod_get_array_optional(&pdev->dev, "mode", GPIOD_OUT_LOW);
	if (IS_ERR(mode)) {
		ret = PTR_ERR(mode);
		dev_err(&pdev->dev, "gpio request failed, ret %d\n", ret);
		goto clean_ndev_ret;
	}

	/*
         * This may be required here for child devices.
         */
	pm_runtime_enable(&pdev->dev);

	/* Select default pin state */
	pinctrl_pm_select_default_state(&pdev->dev);

	if (cpsw_probe_dt(&priv->data, pdev)) {
		dev_err(&pdev->dev, "cpsw: platform data missing\n");
		ret = -ENODEV;
		goto clean_runtime_disable_ret;
	}
	data = &priv->data;

	if (is_valid_ether_addr(data->slave_data[0].mac_addr)) {
		memcpy(priv->mac_addr, data->slave_data[0].mac_addr, ETH_ALEN);
		dev_info(&pdev->dev, "Detected MACID = %pM\n", priv->mac_addr);
	} else {
		eth_random_addr(priv->mac_addr);
		dev_info(&pdev->dev, "Random MACID = %pM\n", priv->mac_addr);
	}

	memcpy(ndev->dev_addr, priv->mac_addr, ETH_ALEN);

	priv->slaves = devm_kzalloc(&pdev->dev,
				    sizeof(struct cpsw_slave) * data->slaves,
				    GFP_KERNEL);
	if (!priv->slaves) {
		ret = -ENOMEM;
		goto clean_runtime_disable_ret;
	}
	for (i = 0; i < data->slaves; i++)
		priv->slaves[i].slave_num = i;

	priv->slaves[0].ndev = ndev;
	priv->emac_port = 0;

	priv->clk = devm_clk_get(&pdev->dev, "fck");
	if (IS_ERR(priv->clk)) {
		dev_err(priv->dev, "fck is not found\n");
		ret = -ENODEV;
		goto clean_runtime_disable_ret;
	}
	priv->coal_intvl = 0;
	priv->bus_freq_mhz = clk_get_rate(priv->clk) / 1000000;

	ss_res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
	ss_regs = devm_ioremap_resource(&pdev->dev, ss_res);
	if (IS_ERR(ss_regs)) {
		ret = PTR_ERR(ss_regs);
		goto clean_runtime_disable_ret;
	}
	priv->regs = ss_regs;

	/* Need to enable clocks with runtime PM api to access module
         * registers
         */
	pm_runtime_get_sync(&pdev->dev);
	priv->version = readl(&priv->regs->id_ver);
	pm_runtime_put_sync(&pdev->dev);

	res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
	priv->wr_regs = devm_ioremap_resource(&pdev->dev, res);
	if (IS_ERR(priv->wr_regs)) {
		ret = PTR_ERR(priv->wr_regs);
		goto clean_runtime_disable_ret;
	}

	memset(&dma_params, 0, sizeof(dma_params));
	memset(&ale_params, 0, sizeof(ale_params));

	switch (priv->version) {
	case CPSW_VERSION_1:
		priv->host_port_regs = ss_regs + CPSW1_HOST_PORT_OFFSET;
		priv->cpts->reg      = ss_regs + CPSW1_CPTS_OFFSET;
		priv->hw_stats	     = ss_regs + CPSW1_HW_STATS;
		dma_params.dmaregs   = ss_regs + CPSW1_CPDMA_OFFSET;
		dma_params.txhdp     = ss_regs + CPSW1_STATERAM_OFFSET;
		ale_params.ale_regs  = ss_regs + CPSW1_ALE_OFFSET;
		slave_offset         = CPSW1_SLAVE_OFFSET;
		slave_size           = CPSW1_SLAVE_SIZE;
		sliver_offset        = CPSW1_SLIVER_OFFSET;
		dma_params.desc_mem_phys = 0;
		break;
	case CPSW_VERSION_2:
	case CPSW_VERSION_3:
	case CPSW_VERSION_4:
		priv->host_port_regs = ss_regs + CPSW2_HOST_PORT_OFFSET;
		priv->cpts->reg      = ss_regs + CPSW2_CPTS_OFFSET;
		priv->hw_stats	     = ss_regs + CPSW2_HW_STATS;
		dma_params.dmaregs   = ss_regs + CPSW2_CPDMA_OFFSET;
		dma_params.txhdp     = ss_regs + CPSW2_STATERAM_OFFSET;
		ale_params.ale_regs  = ss_regs + CPSW2_ALE_OFFSET;
		slave_offset         = CPSW2_SLAVE_OFFSET;
		slave_size           = CPSW2_SLAVE_SIZE;
		sliver_offset        = CPSW2_SLIVER_OFFSET;
		dma_params.desc_mem_phys =
			(u32 __force) ss_res->start + CPSW2_BD_OFFSET;
		break;
	default:
		dev_err(priv->dev, "unknown version 0x%08x\n", priv->version);
		ret = -ENODEV;
		goto clean_runtime_disable_ret;
	}
	for (i = 0; i < priv->data.slaves; i++) {
		struct cpsw_slave *slave = &priv->slaves[i];
		cpsw_slave_init(slave, priv, slave_offset, sliver_offset);
		slave_offset  += slave_size;
		sliver_offset += SLIVER_SIZE;
	}

	dma_params.dev		= &pdev->dev;
	dma_params.rxthresh	= dma_params.dmaregs + CPDMA_RXTHRESH;
	dma_params.rxfree	= dma_params.dmaregs + CPDMA_RXFREE;
	dma_params.rxhdp	= dma_params.txhdp + CPDMA_RXHDP;
	dma_params.txcp		= dma_params.txhdp + CPDMA_TXCP;
	dma_params.rxcp		= dma_params.txhdp + CPDMA_RXCP;

	dma_params.num_chan		= data->channels;
	dma_params.has_soft_reset	= true;
	dma_params.min_packet_size	= CPSW_MIN_PACKET_SIZE;
	dma_params.desc_mem_size	= data->bd_ram_size;
	dma_params.desc_align		= 16;
	dma_params.has_ext_regs		= true;
	dma_params.desc_hw_addr         = dma_params.desc_mem_phys;

	priv->dma = cpdma_ctlr_create(&dma_params);
	if (!priv->dma) {
		dev_err(priv->dev, "error initializing dma\n");
		ret = -ENOMEM;
		goto clean_runtime_disable_ret;
	}

	priv->txch = cpdma_chan_create(priv->dma, tx_chan_num(0),
				       cpsw_tx_handler);
	priv->rxch = cpdma_chan_create(priv->dma, rx_chan_num(0),
				       cpsw_rx_handler);

	if (WARN_ON(!priv->txch || !priv->rxch)) {
		dev_err(priv->dev, "error initializing dma channels\n");
		ret = -ENOMEM;
		goto clean_dma_ret;
	}

	ale_params.dev			= &ndev->dev;
	ale_params.ale_ageout		= ale_ageout;
	ale_params.ale_entries		= data->ale_entries;
	ale_params.ale_ports		= data->slaves;

	priv->ale = cpsw_ale_create(&ale_params);
	if (!priv->ale) {
		dev_err(priv->dev, "error initializing ale engine\n");
		ret = -ENODEV;
		goto clean_dma_ret;
	}

	ndev->irq = platform_get_irq(pdev, 1);
	if (ndev->irq < 0) {
		dev_err(priv->dev, "error getting irq resource\n");
		ret = ndev->irq;
		goto clean_ale_ret;
	}

	of_id = of_match_device(cpsw_of_mtable, &pdev->dev);
	if (of_id) {
		pdev->id_entry = of_id->data;
		if (pdev->id_entry->driver_data)
			priv->quirk_irq = true;
	}

	/* Grab RX and TX IRQs. Note that we also have RX_THRESHOLD and
         * MISC IRQs which are always kept disabled with this driver so
         * we will not request them.
         *
         * If anyone wants to implement support for those, make sure to
         * first request and append them to irqs_table array.
         */

	/* RX IRQ */
	irq = platform_get_irq(pdev, 1);
	if (irq < 0) {
		ret = irq;
		goto clean_ale_ret;
	}

	priv->irqs_table[0] = irq;
	ret = devm_request_irq(&pdev->dev, irq, cpsw_rx_interrupt,
			       0, dev_name(&pdev->dev), priv);
	if (ret < 0) {
		dev_err(priv->dev, "error attaching irq (%d)\n", ret);
		goto clean_ale_ret;
	}

	/* TX IRQ */
	irq = platform_get_irq(pdev, 2);
	if (irq < 0) {
		ret = irq;
		goto clean_ale_ret;
	}

	priv->irqs_table[1] = irq;
	ret = devm_request_irq(&pdev->dev, irq, cpsw_tx_interrupt,
			       0, dev_name(&pdev->dev), priv);
	if (ret < 0) {
		dev_err(priv->dev, "error attaching irq (%d)\n", ret);
		goto clean_ale_ret;
	}
	priv->num_irqs = 2;

	ndev->features |= NETIF_F_HW_VLAN_CTAG_FILTER;

	ndev->netdev_ops = &cpsw_netdev_ops;
	ndev->ethtool_ops = &cpsw_ethtool_ops;
	netif_napi_add(ndev, &priv->napi_rx, cpsw_rx_poll, CPSW_POLL_WEIGHT);
	netif_tx_napi_add(ndev, &priv->napi_tx, cpsw_tx_poll, CPSW_POLL_WEIGHT);

	/* register the network device */
	SET_NETDEV_DEV(ndev, &pdev->dev);
	ret = register_netdev(ndev);
	if (ret) {
		dev_err(priv->dev, "error registering net device\n");
		ret = -ENODEV;
		goto clean_ale_ret;
	}

	cpsw_notice(priv, probe, "initialized device (regs %pa, irq %d)\n",
		    &ss_res->start, ndev->irq);

	if (priv->data.dual_emac) {
		ret = cpsw_probe_dual_emac(pdev, priv);
		if (ret) {
			cpsw_err(priv, probe, "error probe slave 2 emac interface\n");
			goto clean_ale_ret;
		}
	}

	return 0;

clean_ale_ret:
	cpsw_ale_destroy(priv->ale);
clean_dma_ret:
	cpdma_ctlr_destroy(priv->dma);
clean_runtime_disable_ret:
	pm_runtime_disable(&pdev->dev);
clean_ndev_ret:
	free_netdev(priv->ndev);
	return ret;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
mugunthan v n
mugunthan v n
1160
69.88%
16
45.71%
richard cochran
richard cochran
259
15.60%
2
5.71%
felipe balbi
felipe balbi
98
5.90%
3
8.57%
daniel mack
daniel mack
69
4.16%
3
8.57%
george cherian
george cherian
30
1.81%
1
2.86%
julia lawall
julia lawall
15
0.90%
1
2.86%
vaibhav hiremath
vaibhav hiremath
9
0.54%
1
2.86%
sebastian andrzej siewior
sebastian andrzej siewior
5
0.30%
2
5.71%
markus pargmann
markus pargmann
5
0.30%
1
2.86%
wilfried klaebe
wilfried klaebe
3
0.18%
1
2.86%
david rivshin
david rivshin
3
0.18%
1
2.86%
olof johansson
olof johansson
2
0.12%
1
2.86%
patrick mchardy
patrick mchardy
1
0.06%
1
2.86%
eric dumazet
eric dumazet
1
0.06%
1
2.86%
Total
1660
100.00%
35
100.00%



static int cpsw_remove_child_device(struct device *dev, void *c)
{
	struct platform_device *pdev = to_platform_device(dev);

	of_device_unregister(pdev);

	return 0;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
mugunthan v n
mugunthan v n
33
100.00%
1
100.00%
Total
33
100.00%
1
100.00%



static int cpsw_remove(struct platform_device *pdev)
{
	struct net_device *ndev = platform_get_drvdata(pdev);
	struct cpsw_priv *priv = netdev_priv(ndev);

	if (priv->data.dual_emac)
		unregister_netdev(cpsw_get_slave_ndev(priv, 1));
	unregister_netdev(ndev);

	cpsw_ale_destroy(priv->ale);
	cpdma_ctlr_destroy(priv->dma);
	pm_runtime_disable(&pdev->dev);
	device_for_each_child(&pdev->dev, NULL, cpsw_remove_child_device);
	if (priv->data.dual_emac)
		free_netdev(cpsw_get_slave_ndev(priv, 1));
	free_netdev(ndev);
	return 0;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
mugunthan v n
mugunthan v n
73
64.04%
3
75.00%
sebastian andrzej siewior
sebastian andrzej siewior
41
35.96%
1
25.00%
Total
114
100.00%
4
100.00%

#ifdef CONFIG_PM_SLEEP


static int cpsw_suspend(struct device *dev)
{
	struct platform_device	*pdev = to_platform_device(dev);
	struct net_device	*ndev = platform_get_drvdata(pdev);
	struct cpsw_priv	*priv = netdev_priv(ndev);

	if (priv->data.dual_emac) {
		int i;

		for (i = 0; i < priv->data.slaves; i++) {
			if (netif_running(priv->slaves[i].ndev))
				cpsw_ndo_stop(priv->slaves[i].ndev);
			soft_reset_slave(priv->slaves + i);
		}
	} else {
		if (netif_running(ndev))
			cpsw_ndo_stop(ndev);
		for_each_slave(priv, soft_reset_slave);
	}

	pm_runtime_put_sync(&pdev->dev);

	/* Select sleep pin state */
	pinctrl_pm_select_sleep_state(&pdev->dev);

	return 0;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
mugunthan v n
mugunthan v n
148
98.67%
6
85.71%
daniel mack
daniel mack
2
1.33%
1
14.29%
Total
150
100.00%
7
100.00%



static int cpsw_resume(struct device *dev)
{
	struct platform_device	*pdev = to_platform_device(dev);
	struct net_device	*ndev = platform_get_drvdata(pdev);
	struct cpsw_priv	*priv = netdev_priv(ndev);

	pm_runtime_get_sync(&pdev->dev);

	/* Select default pin state */
	pinctrl_pm_select_default_state(&pdev->dev);

	if (priv->data.dual_emac) {
		int i;

		for (i = 0; i < priv->data.slaves; i++) {
			if (netif_running(priv->slaves[i].ndev))
				cpsw_ndo_open(priv->slaves[i].ndev);
		}
	} else {
		if (netif_running(ndev))
			cpsw_ndo_open(ndev);
	}
	return 0;
}
Contributors
Person
Tokens
Prop
Commits
CommitProp
mugunthan v n
mugunthan v n
134
100.00%
4
100.00%
Total
134
100.00%
4
100.00%

#endif

static SIMPLE_DEV_PM_OPS(cpsw_pm_ops, cpsw_suspend, cpsw_resume);


static struct platform_driver cpsw_driver = {
	.driver = {
		.name	 = "cpsw",
		.pm	 = &cpsw_pm_ops,
		.of_match_table = cpsw_of_mtable,
        },
	.probe = cpsw_probe,
	.remove = cpsw_remove,
};


module_platform_driver(cpsw_driver);

MODULE_LICENSE("GPL");
MODULE_AUTHOR("Cyril Chemparathy <cyril@ti.com>");
MODULE_AUTHOR("Mugunthan V N <mugunthanvnm@ti.com>");
MODULE_DESCRIPTION("TI CPSW Ethernet driver");
Overall Contributors
Person
Tokens
Prop
Commits
CommitProp
mugunthan v n
mugunthan v n
10059
80.32%
56
43.41%
richard cochran
richard cochran
916
7.31%
8
6.20%
george cherian
george cherian
228
1.82%
3
2.33%
sebastian andrzej siewior
sebastian andrzej siewior
179
1.43%
6
4.65%
felipe balbi
felipe balbi
165
1.32%
5
3.88%
ben hutchings
ben hutchings
164
1.31%
2
1.55%
daniel mack
daniel mack
148
1.18%
7
5.43%
matus ujhelyi
matus ujhelyi
146
1.17%
1
0.78%
david rivshin
david rivshin
139
1.11%
6
4.65%
lennart sorensen
lennart sorensen
80
0.64%
2
1.55%
markus pargmann
markus pargmann
56
0.45%
5
3.88%
heiko schocher
heiko schocher
47
0.38%
2
1.55%
grygorii strashko
grygorii strashko
34
0.27%
5
3.88%
markus brunner
markus brunner
28
0.22%
1
0.78%
schuyler patton
schuyler patton
27
0.22%
1
0.78%
stefan sorensen
stefan sorensen
21
0.17%
1
0.78%
julia lawall
julia lawall
15
0.12%
1
0.78%
johan hovold
johan hovold
11
0.09%
2
1.55%
patrick mchardy
patrick mchardy
10
0.08%
2
1.55%
stefan roese
stefan roese
9
0.07%
1
0.78%
vaibhav hiremath
vaibhav hiremath
9
0.07%
1
0.78%
tobias klauser
tobias klauser
8
0.06%
1
0.78%
wilfried klaebe
wilfried klaebe
6
0.05%
1
0.78%
olof johansson
olof johansson
4
0.03%
1
0.78%
john ogness
john ogness
3
0.02%
1
0.78%
florian westphal
florian westphal
3
0.02%
1
0.78%
george mccollister
george mccollister
2
0.02%
1
0.78%
uwe kleine-koenig
uwe kleine-koenig
2
0.02%
1
0.78%
joe perches
joe perches
2
0.02%
2
1.55%
andrew lunn
andrew lunn
1
0.01%
1
0.78%
eric dumazet
eric dumazet
1
0.01%
1
0.78%
Total
12523
100.00%
129
100.00%
  
Directory: drivers/net/ethernet/ti

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