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Release 4.11 drivers/net/ethernet/marvell/mv643xx_eth.c

/*
 * Driver for Marvell Discovery (MV643XX) and Marvell Orion ethernet ports
 * Copyright (C) 2002 Matthew Dharm <mdharm@momenco.com>
 *
 * Based on the 64360 driver from:
 * Copyright (C) 2002 Rabeeh Khoury <rabeeh@galileo.co.il>
 *                    Rabeeh Khoury <rabeeh@marvell.com>
 *
 * Copyright (C) 2003 PMC-Sierra, Inc.,
 *      written by Manish Lachwani
 *
 * Copyright (C) 2003 Ralf Baechle <ralf@linux-mips.org>
 *
 * Copyright (C) 2004-2006 MontaVista Software, Inc.
 *                         Dale Farnsworth <dale@farnsworth.org>
 *
 * Copyright (C) 2004 Steven J. Hill <sjhill1@rockwellcollins.com>
 *                                   <sjhill@realitydiluted.com>
 *
 * Copyright (C) 2007-2008 Marvell Semiconductor
 *                         Lennert Buytenhek <buytenh@marvell.com>
 *
 * Copyright (C) 2013 Michael Stapelberg <michael@stapelberg.de>
 *
 * 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/>.
 */


#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt

#include <linux/init.h>
#include <linux/dma-mapping.h>
#include <linux/in.h>
#include <linux/ip.h>
#include <net/tso.h>
#include <linux/tcp.h>
#include <linux/udp.h>
#include <linux/etherdevice.h>
#include <linux/delay.h>
#include <linux/ethtool.h>
#include <linux/platform_device.h>
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/spinlock.h>
#include <linux/workqueue.h>
#include <linux/phy.h>
#include <linux/mv643xx_eth.h>
#include <linux/io.h>
#include <linux/interrupt.h>
#include <linux/types.h>
#include <linux/slab.h>
#include <linux/clk.h>
#include <linux/of.h>
#include <linux/of_irq.h>
#include <linux/of_net.h>
#include <linux/of_mdio.h>


static char mv643xx_eth_driver_name[] = "mv643xx_eth";

static char mv643xx_eth_driver_version[] = "1.4";


/*
 * Registers shared between all ports.
 */

#define PHY_ADDR			0x0000

#define WINDOW_BASE(w)			(0x0200 + ((w) << 3))

#define WINDOW_SIZE(w)			(0x0204 + ((w) << 3))

#define WINDOW_REMAP_HIGH(w)		(0x0280 + ((w) << 2))

#define WINDOW_BAR_ENABLE		0x0290

#define WINDOW_PROTECT(w)		(0x0294 + ((w) << 4))

/*
 * Main per-port registers.  These live at offset 0x0400 for
 * port #0, 0x0800 for port #1, and 0x0c00 for port #2.
 */

#define PORT_CONFIG			0x0000

#define  UNICAST_PROMISCUOUS_MODE	0x00000001

#define PORT_CONFIG_EXT			0x0004

#define MAC_ADDR_LOW			0x0014

#define MAC_ADDR_HIGH			0x0018

#define SDMA_CONFIG			0x001c

#define  TX_BURST_SIZE_16_64BIT		0x01000000

#define  TX_BURST_SIZE_4_64BIT		0x00800000

#define  BLM_TX_NO_SWAP			0x00000020

#define  BLM_RX_NO_SWAP			0x00000010

#define  RX_BURST_SIZE_16_64BIT		0x00000008

#define  RX_BURST_SIZE_4_64BIT		0x00000004

#define PORT_SERIAL_CONTROL		0x003c

#define  SET_MII_SPEED_TO_100		0x01000000

#define  SET_GMII_SPEED_TO_1000		0x00800000

#define  SET_FULL_DUPLEX_MODE		0x00200000

#define  MAX_RX_PACKET_9700BYTE		0x000a0000

#define  DISABLE_AUTO_NEG_SPEED_GMII	0x00002000

#define  DO_NOT_FORCE_LINK_FAIL		0x00000400

#define  SERIAL_PORT_CONTROL_RESERVED	0x00000200

#define  DISABLE_AUTO_NEG_FOR_FLOW_CTRL	0x00000008

#define  DISABLE_AUTO_NEG_FOR_DUPLEX	0x00000004

#define  FORCE_LINK_PASS		0x00000002

#define  SERIAL_PORT_ENABLE		0x00000001

#define PORT_STATUS			0x0044

#define  TX_FIFO_EMPTY			0x00000400

#define  TX_IN_PROGRESS			0x00000080

#define  PORT_SPEED_MASK		0x00000030

#define  PORT_SPEED_1000		0x00000010

#define  PORT_SPEED_100			0x00000020

#define  PORT_SPEED_10			0x00000000

#define  FLOW_CONTROL_ENABLED		0x00000008

#define  FULL_DUPLEX			0x00000004

#define  LINK_UP			0x00000002

#define TXQ_COMMAND			0x0048

#define TXQ_FIX_PRIO_CONF		0x004c

#define PORT_SERIAL_CONTROL1		0x004c

#define  CLK125_BYPASS_EN		0x00000010

#define TX_BW_RATE			0x0050

#define TX_BW_MTU			0x0058

#define TX_BW_BURST			0x005c

#define INT_CAUSE			0x0060

#define  INT_TX_END			0x07f80000

#define  INT_TX_END_0			0x00080000

#define  INT_RX				0x000003fc

#define  INT_RX_0			0x00000004

#define  INT_EXT			0x00000002

#define INT_CAUSE_EXT			0x0064

#define  INT_EXT_LINK_PHY		0x00110000

#define  INT_EXT_TX			0x000000ff

#define INT_MASK			0x0068

#define INT_MASK_EXT			0x006c

#define TX_FIFO_URGENT_THRESHOLD	0x0074

#define RX_DISCARD_FRAME_CNT		0x0084

#define RX_OVERRUN_FRAME_CNT		0x0088

#define TXQ_FIX_PRIO_CONF_MOVED		0x00dc

#define TX_BW_RATE_MOVED		0x00e0

#define TX_BW_MTU_MOVED			0x00e8

#define TX_BW_BURST_MOVED		0x00ec

#define RXQ_CURRENT_DESC_PTR(q)		(0x020c + ((q) << 4))

#define RXQ_COMMAND			0x0280

#define TXQ_CURRENT_DESC_PTR(q)		(0x02c0 + ((q) << 2))

#define TXQ_BW_TOKENS(q)		(0x0300 + ((q) << 4))

#define TXQ_BW_CONF(q)			(0x0304 + ((q) << 4))

#define TXQ_BW_WRR_CONF(q)		(0x0308 + ((q) << 4))

/*
 * Misc per-port registers.
 */

#define MIB_COUNTERS(p)			(0x1000 + ((p) << 7))

#define SPECIAL_MCAST_TABLE(p)		(0x1400 + ((p) << 10))

#define OTHER_MCAST_TABLE(p)		(0x1500 + ((p) << 10))

#define UNICAST_TABLE(p)		(0x1600 + ((p) << 10))


/*
 * SDMA configuration register default value.
 */
#if defined(__BIG_ENDIAN)

#define PORT_SDMA_CONFIG_DEFAULT_VALUE		\
		(RX_BURST_SIZE_4_64BIT  |       \
                 TX_BURST_SIZE_4_64BIT)
#elif defined(__LITTLE_ENDIAN)

#define PORT_SDMA_CONFIG_DEFAULT_VALUE		\
		(RX_BURST_SIZE_4_64BIT  |       \
                 BLM_RX_NO_SWAP         |       \
                 BLM_TX_NO_SWAP         |       \
                 TX_BURST_SIZE_4_64BIT)
#else
#error One of __BIG_ENDIAN or __LITTLE_ENDIAN must be defined
#endif


/*
 * Misc definitions.
 */

#define DEFAULT_RX_QUEUE_SIZE	128

#define DEFAULT_TX_QUEUE_SIZE	512

#define SKB_DMA_REALIGN		((PAGE_SIZE - NET_SKB_PAD) % SMP_CACHE_BYTES)


#define TSO_HEADER_SIZE		128

/* Max number of allowed TCP segments for software TSO */

#define MV643XX_MAX_TSO_SEGS 100

#define MV643XX_MAX_SKB_DESCS (MV643XX_MAX_TSO_SEGS * 2 + MAX_SKB_FRAGS)


#define IS_TSO_HEADER(txq, addr) \
	((addr >= txq->tso_hdrs_dma) && \
         (addr < txq->tso_hdrs_dma + txq->tx_ring_size * TSO_HEADER_SIZE))


#define DESC_DMA_MAP_SINGLE 0

#define DESC_DMA_MAP_PAGE 1

/*
 * RX/TX descriptors.
 */
#if defined(__BIG_ENDIAN)

struct rx_desc {
	
u16 byte_cnt;		/* Descriptor buffer byte count         */
	
u16 buf_size;		/* Buffer size                          */
	
u32 cmd_sts;		/* Descriptor command status            */
	
u32 next_desc_ptr;	/* Next descriptor pointer              */
	
u32 buf_ptr;		/* Descriptor buffer pointer            */
};


struct tx_desc {
	
u16 byte_cnt;		/* buffer byte count                    */
	
u16 l4i_chk;		/* CPU provided TCP checksum            */
	
u32 cmd_sts;		/* Command/status field                 */
	
u32 next_desc_ptr;	/* Pointer to next descriptor           */
	
u32 buf_ptr;		/* pointer to buffer for this descriptor*/
};
#elif defined(__LITTLE_ENDIAN)

struct rx_desc {
	
u32 cmd_sts;		/* Descriptor command status            */
	
u16 buf_size;		/* Buffer size                          */
	
u16 byte_cnt;		/* Descriptor buffer byte count         */
	
u32 buf_ptr;		/* Descriptor buffer pointer            */
	
u32 next_desc_ptr;	/* Next descriptor pointer              */
};


struct tx_desc {
	
u32 cmd_sts;		/* Command/status field                 */
	
u16 l4i_chk;		/* CPU provided TCP checksum            */
	
u16 byte_cnt;		/* buffer byte count                    */
	
u32 buf_ptr;		/* pointer to buffer for this descriptor*/
	
u32 next_desc_ptr;	/* Pointer to next descriptor           */
};
#else
#error One of __BIG_ENDIAN or __LITTLE_ENDIAN must be defined
#endif

/* RX & TX descriptor command */

#define BUFFER_OWNED_BY_DMA		0x80000000

/* RX & TX descriptor status */

#define ERROR_SUMMARY			0x00000001

/* RX descriptor status */

#define LAYER_4_CHECKSUM_OK		0x40000000

#define RX_ENABLE_INTERRUPT		0x20000000

#define RX_FIRST_DESC			0x08000000

#define RX_LAST_DESC			0x04000000

#define RX_IP_HDR_OK			0x02000000

#define RX_PKT_IS_IPV4			0x01000000

#define RX_PKT_IS_ETHERNETV2		0x00800000

#define RX_PKT_LAYER4_TYPE_MASK		0x00600000

#define RX_PKT_LAYER4_TYPE_TCP_IPV4	0x00000000

#define RX_PKT_IS_VLAN_TAGGED		0x00080000

/* TX descriptor command */

#define TX_ENABLE_INTERRUPT		0x00800000

#define GEN_CRC				0x00400000

#define TX_FIRST_DESC			0x00200000

#define TX_LAST_DESC			0x00100000

#define ZERO_PADDING			0x00080000

#define GEN_IP_V4_CHECKSUM		0x00040000

#define GEN_TCP_UDP_CHECKSUM		0x00020000

#define UDP_FRAME			0x00010000

#define MAC_HDR_EXTRA_4_BYTES		0x00008000

#define GEN_TCP_UDP_CHK_FULL		0x00000400

#define MAC_HDR_EXTRA_8_BYTES		0x00000200


#define TX_IHL_SHIFT			11


/* global *******************************************************************/

struct mv643xx_eth_shared_private {
	/*
         * Ethernet controller base address.
         */
	
void __iomem *base;

	/*
         * Per-port MBUS window access register value.
         */
	
u32 win_protect;

	/*
         * Hardware-specific parameters.
         */
	
int extended_rx_coal_limit;
	
int tx_bw_control;
	
int tx_csum_limit;
	
struct clk *clk;
};


#define TX_BW_CONTROL_ABSENT		0

#define TX_BW_CONTROL_OLD_LAYOUT	1

#define TX_BW_CONTROL_NEW_LAYOUT	2

static int mv643xx_eth_open(struct net_device *dev);
static int mv643xx_eth_stop(struct net_device *dev);


/* per-port *****************************************************************/

struct mib_counters {
	
u64 good_octets_received;
	
u32 bad_octets_received;
	
u32 internal_mac_transmit_err;
	
u32 good_frames_received;
	
u32 bad_frames_received;
	
u32 broadcast_frames_received;
	
u32 multicast_frames_received;
	
u32 frames_64_octets;
	
u32 frames_65_to_127_octets;
	
u32 frames_128_to_255_octets;
	
u32 frames_256_to_511_octets;
	
u32 frames_512_to_1023_octets;
	
u32 frames_1024_to_max_octets;
	
u64 good_octets_sent;
	
u32 good_frames_sent;
	
u32 excessive_collision;
	
u32 multicast_frames_sent;
	
u32 broadcast_frames_sent;
	
u32 unrec_mac_control_received;
	
u32 fc_sent;
	
u32 good_fc_received;
	
u32 bad_fc_received;
	
u32 undersize_received;
	
u32 fragments_received;
	
u32 oversize_received;
	
u32 jabber_received;
	
u32 mac_receive_error;
	
u32 bad_crc_event;
	
u32 collision;
	
u32 late_collision;
	/* Non MIB hardware counters */
	
u32 rx_discard;
	
u32 rx_overrun;
};


struct rx_queue {
	
int index;

	
int rx_ring_size;

	
int rx_desc_count;
	
int rx_curr_desc;
	
int rx_used_desc;

	
struct rx_desc *rx_desc_area;
	
dma_addr_t rx_desc_dma;
	
int rx_desc_area_size;
	
struct sk_buff **rx_skb;
};


struct tx_queue {
	
int index;

	
int tx_ring_size;

	
int tx_desc_count;
	
int tx_curr_desc;
	
int tx_used_desc;

	
int tx_stop_threshold;
	
int tx_wake_threshold;

	
char *tso_hdrs;
	
dma_addr_t tso_hdrs_dma;

	
struct tx_desc *tx_desc_area;
	
char *tx_desc_mapping; /* array to track the type of the dma mapping */
	
dma_addr_t tx_desc_dma;
	
int tx_desc_area_size;

	
struct sk_buff_head tx_skb;

	
unsigned long tx_packets;
	
unsigned long tx_bytes;
	
unsigned long tx_dropped;
};


struct mv643xx_eth_private {
	
struct mv643xx_eth_shared_private *shared;
	
void __iomem *base;
	
int port_num;

	
struct net_device *dev;

	
struct timer_list mib_counters_timer;
	
spinlock_t mib_counters_lock;
	
struct mib_counters mib_counters;

	
struct work_struct tx_timeout_task;

	
struct napi_struct napi;
	
u32 int_mask;
	
u8 oom;
	
u8 work_link;
	
u8 work_tx;
	
u8 work_tx_end;
	
u8 work_rx;
	
u8 work_rx_refill;

	
int skb_size;

	/*
         * RX state.
         */
	
int rx_ring_size;
	
unsigned long rx_desc_sram_addr;
	
int rx_desc_sram_size;
	
int rxq_count;
	
struct timer_list rx_oom;
	
struct rx_queue rxq[8];

	/*
         * TX state.
         */
	
int tx_ring_size;
	
unsigned long tx_desc_sram_addr;
	
int tx_desc_sram_size;
	
int txq_count;
	
struct tx_queue txq[8];

	/*
         * Hardware-specific parameters.
         */
	
struct clk *clk;
	
unsigned int t_clk;
};


/* port register accessors **************************************************/

static inline u32 rdl(struct mv643xx_eth_private *mp, int offset) { return readl(mp->shared->base + offset); }

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static inline u32 rdlp(struct mv643xx_eth_private *mp, int offset) { return readl(mp->base + offset); }

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static inline void wrl(struct mv643xx_eth_private *mp, int offset, u32 data) { writel(data, mp->shared->base + offset); }

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static inline void wrlp(struct mv643xx_eth_private *mp, int offset, u32 data) { writel(data, mp->base + offset); }

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/* rxq/txq helper functions *************************************************/
static struct mv643xx_eth_private *rxq_to_mp(struct rx_queue *rxq) { return container_of(rxq, struct mv643xx_eth_private, rxq[rxq->index]); }

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static struct mv643xx_eth_private *txq_to_mp(struct tx_queue *txq) { return container_of(txq, struct mv643xx_eth_private, txq[txq->index]); }

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static void rxq_enable(struct rx_queue *rxq) { struct mv643xx_eth_private *mp = rxq_to_mp(rxq); wrlp(mp, RXQ_COMMAND, 1 << rxq->index); }

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static void rxq_disable(struct rx_queue *rxq) { struct mv643xx_eth_private *mp = rxq_to_mp(rxq); u8 mask = 1 << rxq->index; wrlp(mp, RXQ_COMMAND, mask << 8); while (rdlp(mp, RXQ_COMMAND) & mask) udelay(10); }

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static void txq_reset_hw_ptr(struct tx_queue *txq) { struct mv643xx_eth_private *mp = txq_to_mp(txq); u32 addr; addr = (u32)txq->tx_desc_dma; addr += txq->tx_curr_desc * sizeof(struct tx_desc); wrlp(mp, TXQ_CURRENT_DESC_PTR(txq->index), addr); }

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static void txq_enable(struct tx_queue *txq) { struct mv643xx_eth_private *mp = txq_to_mp(txq); wrlp(mp, TXQ_COMMAND, 1 << txq->index); }

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static void txq_disable(struct tx_queue *txq) { struct mv643xx_eth_private *mp = txq_to_mp(txq); u8 mask = 1 << txq->index; wrlp(mp, TXQ_COMMAND, mask << 8); while (rdlp(mp, TXQ_COMMAND) & mask) udelay(10); }

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static void txq_maybe_wake(struct tx_queue *txq) { struct mv643xx_eth_private *mp = txq_to_mp(txq); struct netdev_queue *nq = netdev_get_tx_queue(mp->dev, txq->index); if (netif_tx_queue_stopped(nq)) { __netif_tx_lock(nq, smp_processor_id()); if (txq->tx_desc_count <= txq->tx_wake_threshold) netif_tx_wake_queue(nq); __netif_tx_unlock(nq); } }

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static int rxq_process(struct rx_queue *rxq, int budget) { struct mv643xx_eth_private *mp = rxq_to_mp(rxq); struct net_device_stats *stats = &mp->dev->stats; int rx; rx = 0; while (rx < budget && rxq->rx_desc_count) { struct rx_desc *rx_desc; unsigned int cmd_sts; struct sk_buff *skb; u16 byte_cnt; rx_desc = &rxq->rx_desc_area[rxq->rx_curr_desc]; cmd_sts = rx_desc->cmd_sts; if (cmd_sts & BUFFER_OWNED_BY_DMA) break; rmb(); skb = rxq->rx_skb[rxq->rx_curr_desc]; rxq->rx_skb[rxq->rx_curr_desc] = NULL; rxq->rx_curr_desc++; if (rxq->rx_curr_desc == rxq->rx_ring_size) rxq->rx_curr_desc = 0; dma_unmap_single(mp->dev->dev.parent, rx_desc->buf_ptr, rx_desc->buf_size, DMA_FROM_DEVICE); rxq->rx_desc_count--; rx++; mp->work_rx_refill |= 1 << rxq->index; byte_cnt = rx_desc->byte_cnt; /* * Update statistics. * * Note that the descriptor byte count includes 2 dummy * bytes automatically inserted by the hardware at the * start of the packet (which we don't count), and a 4 * byte CRC at the end of the packet (which we do count). */ stats->rx_packets++; stats->rx_bytes += byte_cnt - 2; /* * In case we received a packet without first / last bits * on, or the error summary bit is set, the packet needs * to be dropped. */ if ((cmd_sts & (RX_FIRST_DESC | RX_LAST_DESC | ERROR_SUMMARY)) != (RX_FIRST_DESC | RX_LAST_DESC)) goto err; /* * The -4 is for the CRC in the trailer of the * received packet */ skb_put(skb, byte_cnt - 2 - 4); if (cmd_sts & LAYER_4_CHECKSUM_OK) skb->ip_summed = CHECKSUM_UNNECESSARY; skb->protocol = eth_type_trans(skb, mp->dev); napi_gro_receive(&mp->napi, skb); continue; err: stats->rx_dropped++; if ((cmd_sts & (RX_FIRST_DESC | RX_LAST_DESC)) != (RX_FIRST_DESC | RX_LAST_DESC)) { if (net_ratelimit()) netdev_err(mp->dev, "received packet spanning multiple descriptors\n"); } if (cmd_sts & ERROR_SUMMARY) stats->rx_errors++; dev_kfree_skb(skb); } if (rx < budget) mp->work_rx &= ~(1 << rxq->index); return rx; }

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static int rxq_refill(struct rx_queue *rxq, int budget) { struct mv643xx_eth_private *mp = rxq_to_mp(rxq); int refilled; refilled = 0; while (refilled < budget && rxq->rx_desc_count < rxq->rx_ring_size) { struct sk_buff *skb; int rx; struct rx_desc *rx_desc; int size; skb = netdev_alloc_skb(mp->dev, mp->skb_size); if (skb == NULL) { mp->oom = 1; goto oom; } if (SKB_DMA_REALIGN) skb_reserve(skb, SKB_DMA_REALIGN); refilled++; rxq->rx_desc_count++; rx = rxq->rx_used_desc++; if (rxq->rx_used_desc == rxq->rx_ring_size) rxq->rx_used_desc = 0; rx_desc = rxq->rx_desc_area + rx; size = skb_end_pointer(skb) - skb->data; rx_desc->buf_ptr = dma_map_single(mp->dev->dev.parent, skb->data, size, DMA_FROM_DEVICE); rx_desc->buf_size = size; rxq->rx_skb[rx] = skb; wmb(); rx_desc->cmd_sts = BUFFER_OWNED_BY_DMA | RX_ENABLE_INTERRUPT; wmb(); /* * The hardware automatically prepends 2 bytes of * dummy data to each received packet, so that the * IP header ends up 16-byte aligned. */ skb_reserve(skb, 2); } if (refilled < budget) mp->work_rx_refill &= ~(1 << rxq->index); oom: return refilled; }

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/* tx ***********************************************************************/
static inline unsigned int has_tiny_unaligned_frags(struct sk_buff *skb) { int frag; for (frag = 0; frag < skb_shinfo(skb)->nr_frags; frag++) { const skb_frag_t *fragp = &skb_shinfo(skb)->frags[frag]; if (skb_frag_size(fragp) <= 8 && fragp->page_offset & 7) return 1; } return 0; }

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static inline __be16 sum16_as_be(__sum16 sum) { return (__force __be16)sum; }

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Ezequiel García17100.00%1100.00%
Total17100.00%1100.00%


static int skb_tx_csum(struct mv643xx_eth_private *mp, struct sk_buff *skb, u16 *l4i_chk, u32 *command, int length) { int ret; u32 cmd = 0; if (skb->ip_summed == CHECKSUM_PARTIAL) { int hdr_len; int tag_bytes; BUG_ON(skb->protocol != htons(ETH_P_IP) && skb->protocol != htons(ETH_P_8021Q)); hdr_len = (void *)ip_hdr(skb) - (void *)skb->data; tag_bytes = hdr_len - ETH_HLEN; if (length - hdr_len > mp->shared->tx_csum_limit || unlikely(tag_bytes & ~12)) { ret = skb_checksum_help(skb); if (!ret) goto no_csum; return ret; } if (tag_bytes & 4) cmd |= MAC_HDR_EXTRA_4_BYTES; if (tag_bytes & 8) cmd |= MAC_HDR_EXTRA_8_BYTES; cmd |= GEN_TCP_UDP_CHECKSUM | GEN_TCP_UDP_CHK_FULL | GEN_IP_V4_CHECKSUM | ip_hdr(skb)->ihl << TX_IHL_SHIFT; /* TODO: Revisit this. With the usage of GEN_TCP_UDP_CHK_FULL * it seems we don't need to pass the initial checksum. */ switch (ip_hdr(skb)->protocol) { case IPPROTO_UDP: cmd |= UDP_FRAME; *l4i_chk = 0; break; case IPPROTO_TCP: *l4i_chk = 0; break; default: WARN(1, "protocol not supported"); } } else { no_csum: /* Errata BTS #50, IHL must be 5 if no HW checksum */ cmd |= 5 << TX_IHL_SHIFT; } *command = cmd; return 0; }

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PersonTokensPropCommitsCommitProp
Ezequiel García236100.00%2100.00%
Total236100.00%2100.00%


static inline int txq_put_data_tso(struct net_device *dev, struct tx_queue *txq, struct sk_buff *skb, char *data, int length, bool last_tcp, bool is_last) { int tx_index; u32 cmd_sts; struct tx_desc *desc; tx_index = txq->tx_curr_desc++; if (txq->tx_curr_desc == txq->tx_ring_size) txq->tx_curr_desc = 0; desc = &txq->tx_desc_area[tx_index]; txq->tx_desc_mapping[tx_index] = DESC_DMA_MAP_SINGLE; desc->l4i_chk = 0; desc->byte_cnt = length; if (length <= 8 && (uintptr_t)data & 0x7) { /* Copy unaligned small data fragment to TSO header data area */ memcpy(txq->tso_hdrs + tx_index * TSO_HEADER_SIZE, data, length); desc->buf_ptr = txq->tso_hdrs_dma + tx_index * TSO_HEADER_SIZE; } else { /* Alignment is okay, map buffer and hand off to hardware */ txq->tx_desc_mapping[tx_index] = DESC_DMA_MAP_SINGLE; desc->buf_ptr = dma_map_single(dev->dev.parent, data, length, DMA_TO_DEVICE); if (unlikely(dma_mapping_error(dev->dev.parent, desc->buf_ptr))) { WARN(1, "dma_map_single failed!\n"); return -ENOMEM; } } cmd_sts = BUFFER_OWNED_BY_DMA; if (last_tcp) { /* last descriptor in the TCP packet */ cmd_sts |= ZERO_PADDING | TX_LAST_DESC; /* last descriptor in SKB */ if (is_last) cmd_sts |= TX_ENABLE_INTERRUPT; } desc->cmd_sts = cmd_sts; return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Ezequiel García18576.76%250.00%
Philipp Kirchhofer5422.41%125.00%
Nicolas Schichan20.83%125.00%
Total241100.00%4100.00%


static inline void txq_put_hdr_tso(struct sk_buff *skb, struct tx_queue *txq, int length, u32 *first_cmd_sts, bool first_desc) { struct mv643xx_eth_private *mp = txq_to_mp(txq); int hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb); int tx_index; struct tx_desc *desc; int ret; u32 cmd_csum = 0; u16 l4i_chk = 0; u32 cmd_sts; tx_index = txq->tx_curr_desc; desc = &txq->tx_desc_area[tx_index]; ret = skb_tx_csum(mp, skb, &l4i_chk, &cmd_csum, length); if (ret) WARN(1, "failed to prepare checksum!"); /* Should we set this? Can't use the value from skb_tx_csum() * as it's not the correct initial L4 checksum to use. */ desc->l4i_chk = 0; desc->byte_cnt = hdr_len; desc->buf_ptr = txq->tso_hdrs_dma + txq->tx_curr_desc * TSO_HEADER_SIZE; cmd_sts = cmd_csum | BUFFER_OWNED_BY_DMA | TX_FIRST_DESC | GEN_CRC; /* Defer updating the first command descriptor until all * following descriptors have been written. */ if (first_desc) *first_cmd_sts = cmd_sts; else desc->cmd_sts = cmd_sts; txq->tx_curr_desc++; if (txq->tx_curr_desc == txq->tx_ring_size) txq->tx_curr_desc = 0; }

Contributors

PersonTokensPropCommitsCommitProp
Ezequiel García16686.01%150.00%
Philipp Kirchhofer2713.99%150.00%
Total193100.00%2100.00%


static int txq_submit_tso(struct tx_queue *txq, struct sk_buff *skb, struct net_device *dev) { struct mv643xx_eth_private *mp = txq_to_mp(txq); int total_len, data_left, ret; int desc_count = 0; struct tso_t tso; int hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb); struct tx_desc *first_tx_desc; u32 first_cmd_sts = 0; /* Count needed descriptors */ if ((txq->tx_desc_count + tso_count_descs(skb)) >= txq->tx_ring_size) { netdev_dbg(dev, "not enough descriptors for TSO!\n"); return -EBUSY; } first_tx_desc = &txq->tx_desc_area[txq->tx_curr_desc]; /* Initialize the TSO handler, and prepare the first payload */ tso_start(skb, &tso); total_len = skb->len - hdr_len; while (total_len > 0) { bool first_desc = (desc_count == 0); char *hdr; data_left = min_t(int, skb_shinfo(skb)->gso_size, total_len); total_len -= data_left; desc_count++; /* prepare packet headers: MAC + IP + TCP */ hdr = txq->tso_hdrs + txq->tx_curr_desc * TSO_HEADER_SIZE; tso_build_hdr(skb, hdr, &tso, data_left, total_len == 0); txq_put_hdr_tso(skb, txq, data_left, &first_cmd_sts, first_desc); while (data_left > 0) { int size; desc_count++; size = min_t(int, tso.size, data_left); ret = txq_put_data_tso(dev, txq, skb, tso.data, size, size == data_left, total_len == 0); if (ret) goto err_release; data_left -= size; tso_build_data(skb, &tso, size); } } __skb_queue_tail(&txq->tx_skb, skb); skb_tx_timestamp(skb); /* ensure all other descriptors are written before first cmd_sts */ wmb(); first_tx_desc->cmd_sts = first_cmd_sts; /* clear TX_END status */ mp->work_tx_end &= ~(1 << txq->index); /* ensure all descriptors are written before poking hardware */ wmb(); txq_enable(txq); txq->tx_desc_count += desc_count; return 0; err_release: /* TODO: Release all used data descriptors; header descriptors must not * be DMA-unmapped. */ return ret; }

Contributors

PersonTokensPropCommitsCommitProp
Ezequiel García30786.97%266.67%
Philipp Kirchhofer4613.03%133.33%
Total353100.00%3100.00%


static void txq_submit_frag_skb(struct tx_queue *txq, struct sk_buff *skb) { struct mv643xx_eth_private *mp = txq_to_mp(txq); int nr_frags = skb_shinfo(skb)->nr_frags; int frag; for (frag = 0; frag < nr_frags; frag++) { skb_frag_t *this_frag; int tx_index; struct tx_desc *desc; this_frag = &skb_shinfo(skb)->frags[frag]; tx_index = txq->tx_curr_desc++; if (txq->tx_curr_desc == txq->tx_ring_size) txq->tx_curr_desc = 0; desc = &txq->tx_desc_area[tx_index]; txq->tx_desc_mapping[tx_index] = DESC_DMA_MAP_PAGE; /* * The last fragment will generate an interrupt * which will free the skb on TX completion. */ if (frag == nr_frags - 1) { desc->cmd_sts = BUFFER_OWNED_BY_DMA | ZERO_PADDING | TX_LAST_DESC | TX_ENABLE_INTERRUPT; } else { desc->cmd_sts = BUFFER_OWNED_BY_DMA; } desc->l4i_chk = 0; desc->byte_cnt = skb_frag_size(this_frag); desc->buf_ptr = skb_frag_dma_map(mp->dev->dev.parent, this_frag, 0, desc->byte_cnt, DMA_TO_DEVICE); } }

Contributors

PersonTokensPropCommitsCommitProp
Lennert Buytenhek11660.10%538.46%
Ralf Bächle3618.65%17.69%
Gabriel Paubert178.81%17.69%
Ezequiel García168.29%215.38%
Dale Farnsworth52.59%323.08%
Eric Dumazet31.55%17.69%
Total193100.00%13100.00%


static int txq_submit_skb(struct tx_queue *txq, struct sk_buff *skb, struct net_device *dev) { struct mv643xx_eth_private *mp = txq_to_mp(txq); int nr_frags = skb_shinfo(skb)->nr_frags; int tx_index; struct tx_desc *desc; u32 cmd_sts; u16 l4i_chk; int length, ret; cmd_sts = 0; l4i_chk = 0; if (txq->tx_ring_size - txq->tx_desc_count < MAX_SKB_FRAGS + 1) { if (net_ratelimit()) netdev_err(dev, "tx queue full?!\n"); return -EBUSY; } ret = skb_tx_csum(mp, skb, &l4i_chk, &cmd_sts, skb->len); if (ret) return ret; cmd_sts |= TX_FIRST_DESC | GEN_CRC | BUFFER_OWNED_BY_DMA; tx_index = txq->tx_curr_desc++; if (txq->tx_curr_desc == txq->tx_ring_size) txq->tx_curr_desc = 0; desc = &txq->tx_desc_area[tx_index]; txq->tx_desc_mapping[tx_index] = DESC_DMA_MAP_SINGLE; if (nr_frags) { txq_submit_frag_skb(txq, skb); length = skb_headlen(skb); } else { cmd_sts |= ZERO_PADDING | TX_LAST_DESC | TX_ENABLE_INTERRUPT; length = skb->len; } desc->l4i_chk = l4i_chk; desc->byte_cnt = length; desc->buf_ptr = dma_map_single(mp->dev->dev.parent, skb->data, length, DMA_TO_DEVICE); __skb_queue_tail(&txq->tx_skb, skb); skb_tx_timestamp(skb); /* ensure all other descriptors are written before first cmd_sts */ wmb(); desc->cmd_sts = cmd_sts; /* clear TX_END status */ mp->work_tx_end &= ~(1 << txq->index); /* ensure all descriptors are written before poking hardware */ wmb(); txq_enable(txq); txq->tx_desc_count += nr_frags + 1; return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Lennert Buytenhek20968.08%956.25%
Ezequiel García6621.50%318.75%
James Chapman175.54%16.25%
Gabriel Paubert72.28%16.25%
Richard Cochran51.63%16.25%
Saeed Bishara30.98%16.25%
Total307100.00%16100.00%


static netdev_tx_t mv643xx_eth_xmit(struct sk_buff *skb, struct net_device *dev) { struct mv643xx_eth_private *mp = netdev_priv(dev); int length, queue, ret; struct tx_queue *txq; struct netdev_queue *nq; queue = skb_get_queue_mapping(skb); txq = mp->txq + queue; nq = netdev_get_tx_queue(dev, queue); if (has_tiny_unaligned_frags(skb) && __skb_linearize(skb)) { netdev_printk(KERN_DEBUG, dev, "failed to linearize skb with tiny unaligned fragment\n"); return NETDEV_TX_BUSY; } length = skb->len; if (skb_is_gso(skb)) ret = txq_submit_tso(txq, skb, dev); else ret = txq_submit_skb(txq, skb, dev); if (!ret) { txq->tx_bytes += length; txq->tx_packets++; if (txq->tx_desc_count >= txq->tx_stop_threshold) netif_tx_stop_queue(nq); } else { txq->tx_dropped++; dev_kfree_skb_any(skb); } return NETDEV_TX_OK; }

Contributors

PersonTokensPropCommitsCommitProp
Lennert Buytenhek11765.73%436.36%
Ezequiel García4625.84%327.27%
Richard Cochran95.06%19.09%
James Chapman31.69%19.09%
Joe Perches21.12%19.09%
Denis Kirjanov10.56%19.09%
Total178100.00%11100.00%

/* tx napi ******************************************************************/
static void txq_kick(struct tx_queue *txq) { struct mv643xx_eth_private *mp = txq_to_mp(txq); struct netdev_queue *nq = netdev_get_tx_queue(mp->dev, txq->index); u32 hw_desc_ptr; u32 expected_ptr; __netif_tx_lock(nq, smp_processor_id()); if (rdlp(mp, TXQ_COMMAND) & (1 << txq->index)) goto out; hw_desc_ptr = rdlp(mp, TXQ_CURRENT_DESC_PTR(txq->index)); expected_ptr = (u32)txq->tx_desc_dma + txq->tx_curr_desc * sizeof(struct tx_desc); if (hw_desc_ptr != expected_ptr) txq_enable(txq); out: __netif_tx_unlock(nq); mp->work_tx_end &= ~(1 << txq->index); }

Contributors

PersonTokensPropCommitsCommitProp
Lennert Buytenhek13499.26%685.71%
Ralf Bächle10.74%114.29%
Total135100.00%7100.00%


static int txq_reclaim(struct tx_queue *txq, int budget, int force) { struct mv643xx_eth_private *mp = txq_to_mp(txq); struct netdev_queue *nq = netdev_get_tx_queue(mp->dev, txq->index); int reclaimed; __netif_tx_lock_bh(nq); reclaimed = 0; while (reclaimed < budget && txq->tx_desc_count > 0) { int tx_index; struct tx_desc *desc; u32 cmd_sts; char desc_dma_map; tx_index = txq->tx_used_desc; desc = &txq->tx_desc_area[tx_index]; desc_dma_map = txq->tx_desc_mapping[tx_index]; cmd_sts = desc->cmd_sts; if (cmd_sts & BUFFER_OWNED_BY_DMA) { if (!force) break; desc->cmd_sts = cmd_sts & ~BUFFER_OWNED_BY_DMA; } txq->tx_used_desc = tx_index + 1; if (txq->tx_used_desc == txq->tx_ring_size) txq->tx_used_desc = 0; reclaimed++; txq->tx_desc_count--; if (!IS_TSO_HEADER(txq, desc->buf_ptr)) { if (desc_dma_map == DESC_DMA_MAP_PAGE) dma_unmap_page(mp->dev->dev.parent, desc->buf_ptr, desc->byte_cnt, DMA_TO_DEVICE); else dma_unmap_single(mp->dev->dev.parent, desc->buf_ptr, desc->byte_cnt, DMA_TO_DEVICE); } if (cmd_sts & TX_ENABLE_INTERRUPT) { struct sk_buff *skb = __skb_dequeue(&txq->tx_skb); if (!WARN_ON(!skb)) dev_kfree_skb(skb); } if (cmd_sts & ERROR_SUMMARY) { netdev_info(mp->dev, "tx error\n"); mp->dev->stats.tx_errors++; } } __netif_tx_unlock_bh(nq); if (reclaimed < budget) mp->work_tx &= ~(1 << txq->index); return reclaimed; }

Contributors

PersonTokensPropCommitsCommitProp
Lennert Buytenhek20162.81%1055.56%
Karl Beldan5316.56%15.56%
Ezequiel García4213.12%15.56%
Ralf Bächle154.69%15.56%
Dale Farnsworth41.25%15.56%
James Chapman20.62%211.11%
Russell King20.62%15.56%
Joe Perches10.31%15.56%
Total320100.00%18100.00%

/* tx rate control **********************************************************/ /* * Set total maximum TX rate (shared by all TX queues for this port) * to 'rate' bits per second, with a maximum burst of 'burst' bytes. */
static void tx_set_rate(struct mv643xx_eth_private *mp, int rate, int burst) { int token_rate; int mtu; int bucket_size; token_rate = ((rate / 1000) * 64) / (mp->t_clk / 1000); if (token_rate > 1023) token_rate = 1023; mtu = (mp->dev->mtu + 255) >> 8; if (mtu > 63) mtu = 63; bucket_size = (burst + 255) >> 8; if (bucket_size > 65535) bucket_size = 65535; switch (mp->shared->tx_bw_control) { case TX_BW_CONTROL_OLD_LAYOUT: wrlp(mp, TX_BW_RATE, token_rate); wrlp(mp, TX_BW_MTU, mtu); wrlp(mp, TX_BW_BURST, bucket_size); break; case TX_BW_CONTROL_NEW_LAYOUT: wrlp(mp, TX_BW_RATE_MOVED, token_rate); wrlp(mp, TX_BW_MTU_MOVED, mtu); wrlp(mp, TX_BW_BURST_MOVED, bucket_size); break; } }

Contributors

PersonTokensPropCommitsCommitProp
Lennert Buytenhek172100.00%4100.00%
Total172100.00%4100.00%


static void txq_set_rate(struct tx_queue *txq, int rate, int burst) { struct mv643xx_eth_private *mp = txq_to_mp(txq); int token_rate; int bucket_size; token_rate = ((rate / 1000) * 64) / (mp->t_clk / 1000); if (token_rate > 1023) token_rate = 1023; bucket_size = (burst + 255) >> 8; if (bucket_size > 65535) bucket_size = 65535; wrlp(mp, TXQ_BW_TOKENS(txq->index), token_rate << 14); wrlp(mp, TXQ_BW_CONF(txq->index), (bucket_size << 10) | token_rate); }

Contributors

PersonTokensPropCommitsCommitProp
Lennert Buytenhek119100.00%3100.00%
Total119100.00%3100.00%


static void txq_set_fixed_prio_mode(struct tx_queue *txq) { struct mv643xx_eth_private *mp = txq_to_mp(txq); int off; u32 val; /* * Turn on fixed priority mode. */ off = 0; switch (mp->shared->tx_bw_control) { case TX_BW_CONTROL_OLD_LAYOUT: off = TXQ_FIX_PRIO_CONF; break; case TX_BW_CONTROL_NEW_LAYOUT: off = TXQ_FIX_PRIO_CONF_MOVED; break; } if (off) { val = rdlp(mp, off); val |= 1 << txq->index; wrlp(mp, off, val); } }

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Lennert Buytenhek90100.00%5100.00%
Total90100.00%5100.00%

/* mii management interface *************************************************/
static void mv643xx_eth_adjust_link(struct net_device *dev) { struct mv643xx_eth_private *mp = netdev_priv(dev); u32 pscr = rdlp(mp, PORT_SERIAL_CONTROL); u32 autoneg_disable = FORCE_LINK_PASS | DISABLE_AUTO_NEG_SPEED_GMII | DISABLE_AUTO_NEG_FOR_FLOW_CTRL | DISABLE_AUTO_NEG_FOR_DUPLEX; if (dev->phydev->autoneg == AUTONEG_ENABLE) { /* enable auto negotiation */ pscr &= ~autoneg_disable; goto out_write; } pscr |= autoneg_disable; if (dev->phydev->speed == SPEED_1000) { /* force gigabit, half duplex not supported */ pscr |= SET_GMII_SPEED_TO_1000; pscr |= SET_FULL_DUPLEX_MODE; goto out_write; } pscr &= ~SET_GMII_SPEED_TO_1000; if (dev->phydev->speed == SPEED_100) pscr |= SET_MII_SPEED_TO_100; else pscr &= ~SET_MII_SPEED_TO_100; if (dev->phydev->duplex == DUPLEX_FULL) pscr |= SET_FULL_DUPLEX_MODE; else pscr &= ~SET_FULL_DUPLEX_MODE; out_write: wrlp(mp, PORT_SERIAL_CONTROL, pscr); }

Contributors

PersonTokensPropCommitsCommitProp
Phil Sutter12685.71%133.33%
Ezequiel García138.84%133.33%
Philippe Reynes85.44%133.33%
Total147100.00%3100.00%

/* statistics ***************************************************************/
static struct net_device_stats *mv643xx_eth_get_stats(struct net_device *dev) { struct mv643xx_eth_private *mp = netdev_priv(dev); struct net_device_stats *stats = &dev->stats; unsigned long tx_packets = 0; unsigned long tx_bytes = 0; unsigned long tx_dropped = 0; int i; for (i = 0; i < mp->txq_count; i++) { struct tx_queue *txq = mp->txq + i; tx_packets += txq->tx_packets; tx_bytes += txq->tx_bytes; tx_dropped += txq->tx_dropped; } stats->tx_packets = tx_packets; stats->tx_bytes = tx_bytes; stats->tx_dropped = tx_dropped; return stats; }

Contributors

PersonTokensPropCommitsCommitProp
Florian Fainelli10082.64%150.00%
Lennert Buytenhek2117.36%150.00%
Total121100.00%2100.00%


static inline u32 mib_read(struct mv643xx_eth_private *mp, int offset) { return rdl(mp, MIB_COUNTERS(mp->port_num) + offset); }

Contributors

PersonTokensPropCommitsCommitProp
Lennert Buytenhek2583.33%375.00%
Ralf Bächle516.67%125.00%
Total30100.00%4100.00%


static void mib_counters_clear(struct mv643xx_eth_private *mp) { int i; for (i = 0; i < 0x80; i += 4) mib_read(mp, i); /* Clear non MIB hw counters also */ rdlp(mp, RX_DISCARD_FRAME_CNT); rdlp(mp, RX_OVERRUN_FRAME_CNT); }

Contributors

PersonTokensPropCommitsCommitProp
Lennert Buytenhek2958.00%350.00%
Paulius Zaleckas1530.00%116.67%
James Chapman48.00%116.67%
Dale Farnsworth24.00%116.67%
Total50100.00%6100.00%


static void mib_counters_update(struct mv643xx_eth_private *mp) { struct mib_counters *p = &mp->mib_counters; spin_lock_bh(&mp->mib_counters_lock); p->good_octets_received += mib_read(mp, 0x00); p->bad_octets_received += mib_read(mp, 0x08); p->internal_mac_transmit_err += mib_read(mp, 0x0c); p->good_frames_received += mib_read(mp, 0x10); p->bad_frames_received += mib_read(mp, 0x14); p->broadcast_frames_received += mib_read(mp, 0x18); p->multicast_frames_received += mib_read(mp, 0x1c); p->frames_64_octets += mib_read(mp, 0x20); p->frames_65_to_127_octets += mib_read(mp, 0x24); p->frames_128_to_255_octets += mib_read(mp, 0x28); p->frames_256_to_511_octets += mib_read(mp, 0x2c); p->frames_512_to_1023_octets += mib_read(mp, 0x30); p->frames_1024_to_max_octets += mib_read(mp, 0x34); p->good_octets_sent += mib_read(mp, 0x38); p->good_frames_sent += mib_read(mp, 0x40); p->excessive_collision += mib_read(mp, 0x44); p->multicast_frames_sent += mib_read(mp, 0x48); p->broadcast_frames_sent += mib_read(mp, 0x4c); p->unrec_mac_control_received += mib_read(mp, 0x50); p->fc_sent += mib_read(mp, 0x54); p->good_fc_received += mib_read(mp, 0x58); p->bad_fc_received += mib_read(mp, 0x5c); p->undersize_received += mib_read(mp, 0x60); p->fragments_received += mib_read(mp, 0x64); p->oversize_received += mib_read(mp, 0x68); p->jabber_received += mib_read(mp, 0x6c); p->mac_receive_error += mib_read(mp, 0x70); p->bad_crc_event += mib_read(mp, 0x74); p->collision += mib_read(mp, 0x78); p->late_collision += mib_read(mp, 0x7c); /* Non MIB hardware counters */ p->rx_discard += rdlp(mp, RX_DISCARD_FRAME_CNT); p->rx_overrun += rdlp(mp, RX_OVERRUN_FRAME_CNT); spin_unlock_bh(&mp->mib_counters_lock); }

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PersonTokensPropCommitsCommitProp
Lennert Buytenhek34387.95%562.50%
Paulius Zaleckas235.90%112.50%
James Chapman225.64%112.50%
Sebastian Andrzej Siewior20.51%112.50%
Total390100.00%8100.00%


static void mib_counters_timer_wrapper(unsigned long _mp) { struct mv643xx_eth_private *mp = (void *)_mp; mib_counters_update(mp); mod_timer(&mp->mib_counters_timer, jiffies + 30 * HZ); }

Contributors

PersonTokensPropCommitsCommitProp
Lennert Buytenhek2562.50%133.33%
Sebastian Hesselbarth1435.00%133.33%
James Chapman12.50%133.33%
Total40100.00%3100.00%

/* interrupt coalescing *****************************************************/ /* * Hardware coalescing parameters are set in units of 64 t_clk * cycles. I.e.: * * coal_delay_in_usec = 64000000 * register_value / t_clk_rate * * register_value = coal_delay_in_usec * t_clk_rate / 64000000 * * In the ->set*() methods, we round the computed register value * to the nearest integer. */
static unsigned int get_rx_coal(struct mv643xx_eth_private *mp) { u32 val = rdlp(mp, SDMA_CONFIG); u64 temp; if (mp->shared->extended_rx_coal_limit) temp = ((val & 0x02000000) >> 10) | ((val & 0x003fff80) >> 7); else temp = (val & 0x003fff00) >> 8; temp *= 64000000; temp += mp->t_clk / 2; do_div(temp, mp->t_clk); return (unsigned int)temp; }

Contributors

PersonTokensPropCommitsCommitProp
Lennert Buytenhek8691.49%150.00%
Russell King88.51%150.00%
Total94100.00%2100.00%


static void set_rx_coal(struct mv643xx_eth_private *mp, unsigned int usec) { u64 temp; u32 val; temp = (u64)usec * mp->t_clk; temp += 31999999; do_div(temp, 64000000); val = rdlp(mp, SDMA_CONFIG); if (mp->shared->extended_rx_coal_limit) { if (temp > 0xffff) temp = 0xffff; val &= ~0x023fff80; val |= (temp & 0x8000) << 10; val |= (temp & 0x7fff) << 7; } else { if (temp > 0x3fff) temp = 0x3fff; val &= ~0x003fff00; val |= (temp & 0x3fff) << 8; } wrlp(mp, SDMA_CONFIG, val); }

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PersonTokensPropCommitsCommitProp
Lennert Buytenhek134100.00%1100.00%
Total134100.00%1100.00%


static unsigned int get_tx_coal(struct mv643xx_eth_private *mp) { u64 temp; temp = (rdlp(mp, TX_FIFO_URGENT_THRESHOLD) & 0x3fff0) >> 4; temp *= 64000000; temp += mp->t_clk / 2; do_div(temp, mp->t_clk); return (unsigned int)temp; }

Contributors

PersonTokensPropCommitsCommitProp
Lennert Buytenhek5086.21%150.00%
Russell King813.79%150.00%
Total58100.00%2100.00%


static void set_tx_coal(struct mv643xx_eth_private *mp, unsigned int usec) { u64 temp; temp = (u64)usec * mp->t_clk; temp += 31999999; do_div(temp, 64000000); if (temp > 0x3fff) temp = 0x3fff; wrlp(mp, TX_FIFO_URGENT_THRESHOLD, temp << 4); }

Contributors

PersonTokensPropCommitsCommitProp
Lennert Buytenhek61100.00%1100.00%
Total61100.00%1100.00%

/* ethtool ******************************************************************/ struct mv643xx_eth_stats { char stat_string[ETH_GSTRING_LEN]; int sizeof_stat; int netdev_off; int mp_off; }; #define SSTAT(m) \ { #m, FIELD_SIZEOF(struct net_device_stats, m), \ offsetof(struct net_device, stats.m), -1 } #define MIBSTAT(m) \ { #m, FIELD_SIZEOF(struct mib_counters, m), \ -1, offsetof(struct mv643xx_eth_private, mib_counters.m) } static const struct mv643xx_eth_stats mv643xx_eth_stats[] = { SSTAT(rx_packets), SSTAT(tx_packets), SSTAT(rx_bytes), SSTAT(tx_bytes), SSTAT(rx_errors), SSTAT(tx_errors), SSTAT(rx_dropped), SSTAT(tx_dropped), MIBSTAT(good_octets_received), MIBSTAT(bad_octets_received), MIBSTAT(internal_mac_transmit_err), MIBSTAT(good_frames_received), MIBSTAT(bad_frames_received), MIBSTAT(broadcast_frames_received), MIBSTAT(multicast_frames_received), MIBSTAT(frames_64_octets), MIBSTAT(frames_65_to_127_octets), MIBSTAT(frames_128_to_255_octets), MIBSTAT(frames_256_to_511_octets), MIBSTAT(frames_512_to_1023_octets), MIBSTAT(frames_1024_to_max_octets), MIBSTAT(good_octets_sent), MIBSTAT(good_frames_sent), MIBSTAT(excessive_collision), MIBSTAT(multicast_frames_sent), MIBSTAT(broadcast_frames_sent), MIBSTAT(unrec_mac_control_received), MIBSTAT(fc_sent), MIBSTAT(good_fc_received), MIBSTAT(bad_fc_received), MIBSTAT(undersize_received), MIBSTAT(fragments_received), MIBSTAT(oversize_received), MIBSTAT(jabber_received), MIBSTAT(mac_receive_error), MIBSTAT(bad_crc_event), MIBSTAT(collision), MIBSTAT(late_collision), MIBSTAT(rx_discard), MIBSTAT(rx_overrun), };
static int mv643xx_eth_get_link_ksettings_phy(struct mv643xx_eth_private *mp, struct ethtool_link_ksettings *cmd) { struct net_device *dev = mp->dev; int err; u32 supported, advertising; err = phy_ethtool_ksettings_get(dev->phydev, cmd); /* * The MAC does not support 1000baseT_Half. */ ethtool_convert_link_mode_to_legacy_u32(&supported, cmd->link_modes.supported); ethtool_convert_link_mode_to_legacy_u32(&advertising, cmd->link_modes.advertising); supported &= ~SUPPORTED_1000baseT_Half; advertising &= ~ADVERTISED_1000baseT_Half; ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.supported, supported); ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.advertising, advertising); return err; }

Contributors

PersonTokensPropCommitsCommitProp
Philippe Reynes6360.58%233.33%
Lennert Buytenhek2826.92%350.00%
Ralf Bächle1312.50%116.67%
Total104100.00%6100.00%


static int mv643xx_eth_get_link_ksettings_phyless(struct mv643xx_eth_private *mp, struct ethtool_link_ksettings *cmd) { u32 port_status; u32 supported, advertising; port_status = rdlp(mp, PORT_STATUS); supported = SUPPORTED_MII; advertising = ADVERTISED_MII; switch (port_status & PORT_SPEED_MASK) { case PORT_SPEED_10: cmd->base.speed = SPEED_10; break; case PORT_SPEED_100: cmd->base.speed = SPEED_100; break; case PORT_SPEED_1000: cmd->base.speed = SPEED_1000; break; default: cmd->base.speed = -1; break; } cmd->base.duplex = (port_status & FULL_DUPLEX) ? DUPLEX_FULL : DUPLEX_HALF; cmd->base.port = PORT_MII; cmd->base.phy_address = 0; cmd->base.autoneg = AUTONEG_DISABLE; ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.supported, supported); ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.advertising, advertising); return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Lennert Buytenhek11370.19%480.00%
Philippe Reynes4829.81%120.00%
Total161100.00%5100.00%


static void mv643xx_eth_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol) { wol->supported = 0; wol->wolopts = 0; if (dev->phydev) phy_ethtool_get_wol(dev->phydev, wol); }

Contributors

PersonTokensPropCommitsCommitProp
Michael Stapelberg3888.37%133.33%
Philippe Reynes49.30%133.33%
Ralf Bächle12.33%133.33%
Total43100.00%3100.00%


static int mv643xx_eth_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol) { int err; if (!dev->phydev) return -EOPNOTSUPP; err = phy_ethtool_set_wol(dev->phydev, wol); /* Given that mv643xx_eth works without the marvell-specific PHY driver, * this debugging hint is useful to have. */ if (err == -EOPNOTSUPP) netdev_info(dev, "The PHY does not support set_wol, was CONFIG_MARVELL_PHY enabled?\n"); return err; }

Contributors

PersonTokensPropCommitsCommitProp
Michael Stapelberg5491.53%150.00%
Philippe Reynes58.47%150.00%
Total59100.00%2100.00%


static int mv643xx_eth_get_link_ksettings(struct net_device *dev, struct ethtool_link_ksettings *cmd) { struct mv643xx_eth_private *mp = netdev_priv(dev); if (dev->phydev) return mv643xx_eth_get_link_ksettings_phy(mp, cmd); else return mv643xx_eth_get_link_ksettings_phyless(mp, cmd); }

Contributors

PersonTokensPropCommitsCommitProp
Lennert Buytenhek2244.90%555.56%
Ralf Bächle2040.82%111.11%
Philippe Reynes612.24%222.22%
Michael Stapelberg12.04%111.11%
Total49100.00%9100.00%


static int mv643xx_eth_set_link_ksettings(struct net_device *dev, const struct ethtool_link_ksettings *cmd) { struct ethtool_link_ksettings c = *cmd; u32 advertising; int ret; if (!dev->phydev) return -EINVAL; /* * The MAC does not support 1000baseT_Half. */ ethtool_convert_link_mode_to_legacy_u32(&advertising, c.link_modes.advertising); advertising &= ~ADVERTISED_1000baseT_Half; ethtool_convert_legacy_u32_to_link_mode(c.link_modes.advertising, advertising); ret = phy_ethtool_ksettings_set(dev->phydev, &c); if (!ret) mv643xx_eth_adjust_link(dev); return ret; }

Contributors

PersonTokensPropCommitsCommitProp
Philippe Reynes4446.32%233.33%
Lennert Buytenhek3334.74%233.33%
Phil Sutter1616.84%116.67%
Ezequiel García22.11%116.67%
Total95100.00%6100.00%


static void mv643xx_eth_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *drvinfo) { strlcpy(drvinfo->driver, mv643xx_eth_driver_name, sizeof(drvinfo->driver)); strlcpy(drvinfo->version, mv643xx_eth_driver_version, sizeof(drvinfo->version)); strlcpy(drvinfo->fw_version, "N/A", sizeof(drvinfo->fw_version)); strlcpy(drvinfo->bus_info, "platform", sizeof(drvinfo->bus_info)); }

Contributors

PersonTokensPropCommitsCommitProp
Lennert Buytenhek3645.00%450.00%
Rick Jones2430.00%112.50%
Ralf Bächle1215.00%112.50%
Axel Lin45.00%112.50%
Dale Farnsworth45.00%112.50%
Total80100.00%8100.00%


static int mv643xx_eth_get_coalesce(struct net_device *dev, struct ethtool_coalesce *ec) { struct mv643xx_eth_private *mp = netdev_priv(dev); ec->rx_coalesce_usecs = get_rx_coal(mp); ec->tx_coalesce_usecs = get_tx_coal(mp); return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Lennert Buytenhek2757.45%583.33%
Ralf Bächle2042.55%116.67%
Total47100.00%6100.00%


static int mv643xx_eth_set_coalesce(struct net_device *dev, struct ethtool_coalesce *ec) { struct mv643xx_eth_private *mp = netdev_priv(dev); set_rx_coal(mp, ec->rx_coalesce_usecs); set_tx_coal(mp, ec->tx_coalesce_usecs); return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Lennert Buytenhek4595.74%466.67%
Ralf Bächle12.13%116.67%
Dale Farnsworth12.13%116.67%
Total47100.00%6100.00%


static void mv643xx_eth_get_ringparam(struct net_device *dev, struct ethtool_ringparam *er) { struct mv643xx_eth_private *mp = netdev_priv(dev); er->rx_max_pending = 4096; er->tx_max_pending = 4096; er->rx_pending = mp->rx_ring_size; er->tx_pending = mp->tx_ring_size; }

Contributors

PersonTokensPropCommitsCommitProp
Lennert Buytenhek54100.00%1100.00%
Total54100.00%1100.00%


static int mv643xx_eth_set_ringparam(struct net_device *dev, struct ethtool_ringparam *er) { struct mv643xx_eth_private *mp = netdev_priv(dev); if (er->rx_mini_pending || er->rx_jumbo_pending) return -EINVAL; mp->rx_ring_size = er->rx_pending < 4096 ? er->rx_pending : 4096; mp->tx_ring_size = clamp_t(unsigned int, er->tx_pending, MV643XX_MAX_SKB_DESCS * 2, 4096); if (mp->tx_ring_size != er->tx_pending) netdev_warn(dev, "TX queue size set to %u (requested %u)\n", mp->tx_ring_size, er->tx_pending); if (netif_running(dev)) { mv643xx_eth_stop(dev); if (mv643xx_eth_open(dev)) { netdev_err(dev, "fatal error on re-opening device after ring param change\n"); return -ENOMEM; } } return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Lennert Buytenhek10276.12%133.33%
Ezequiel García3022.39%133.33%
Joe Perches21.49%133.33%
Total134100.00%3100.00%


static int mv643xx_eth_set_features(struct net_device *dev, netdev_features_t features) { struct mv643xx_eth_private *mp = netdev_priv(dev); bool rx_csum = features & NETIF_F_RXCSUM; wrlp(mp, PORT_CONFIG, rx_csum ? 0x02000000 : 0x00000000); return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Lennert Buytenhek3880.85%125.00%
Michał Mirosław919.15%375.00%
Total47100.00%4100.00%


static void mv643xx_eth_get_strings(struct net_device *dev, uint32_t stringset, uint8_t *data) { int i; if (stringset == ETH_SS_STATS) { for (i = 0; i < ARRAY_SIZE(mv643xx_eth_stats); i++) { memcpy(data + i * ETH_GSTRING_LEN, mv643xx_eth_stats[i].stat_string, ETH_GSTRING_LEN); } } }

Contributors

PersonTokensPropCommitsCommitProp
Lennert Buytenhek5483.08%466.67%
Ralf Bächle913.85%116.67%
Stephen Hemminger23.08%116.67%
Total65100.00%6100.00%


static void mv643xx_eth_get_ethtool_stats(struct net_device *dev, struct ethtool_stats *stats, uint64_t *data) { struct mv643xx_eth_private *mp = netdev_priv(dev); int i; mv643xx_eth_get_stats(dev); mib_counters_update(mp); for (i = 0; i < ARRAY_SIZE(mv643xx_eth_stats); i++) { const struct mv643xx_eth_stats *stat; void *p; stat = mv643xx_eth_stats + i; if (stat->netdev_off >= 0) p = ((void *)mp->dev) + stat->netdev_off; else p = ((void *)mp) + stat->mp_off; data[i] = (stat->sizeof_stat == 8) ? *(uint64_t *)p : *(uint32_t *)p; } }

Contributors

PersonTokensPropCommitsCommitProp
Lennert Buytenhek12386.01%666.67%
Ralf Bächle117.69%111.11%
Stephen Hemminger85.59%111.11%
Dale Farnsworth10.70%111.11%
Total143100.00%9100.00%


static int mv643xx_eth_get_sset_count(struct net_device *dev, int sset) { if (sset == ETH_SS_STATS) return ARRAY_SIZE(mv643xx_eth_stats); return -EOPNOTSUPP; }

Contributors

PersonTokensPropCommitsCommitProp
Lennert Buytenhek1756.67%480.00%
Paul Janzen1343.33%120.00%
Total30100.00%5100.00%

static const struct ethtool_ops mv643xx_eth_ethtool_ops = { .get_drvinfo = mv643xx_eth_get_drvinfo, .nway_reset = phy_ethtool_nway_reset, .get_link = ethtool_op_get_link, .get_coalesce = mv643xx_eth_get_coalesce, .set_coalesce = mv643xx_eth_set_coalesce, .get_ringparam = mv643xx_eth_get_ringparam, .set_ringparam = mv643xx_eth_set_ringparam, .get_strings = mv643xx_eth_get_strings, .get_ethtool_stats = mv643xx_eth_get_ethtool_stats, .get_sset_count = mv643xx_eth_get_sset_count, .get_ts_info = ethtool_op_get_ts_info, .get_wol = mv643xx_eth_get_wol, .set_wol = mv643xx_eth_set_wol, .get_link_ksettings = mv643xx_eth_get_link_ksettings, .set_link_ksettings = mv643xx_eth_set_link_ksettings, }; /* address handling *********************************************************/
static void uc_addr_get(struct mv643xx_eth_private *mp, unsigned char *addr) { unsigned int mac_h = rdlp(mp, MAC_ADDR_HIGH); unsigned int mac_l = rdlp(mp, MAC_ADDR_LOW); addr[0] = (mac_h >> 24) & 0xff; addr[1] = (mac_h >> 16) & 0xff; addr[2] = (mac_h >> 8) & 0xff; addr[3] = mac_h & 0xff; addr[4] = (mac_l >> 8) & 0xff; addr[5] = mac_l & 0xff; }

Contributors

PersonTokensPropCommitsCommitProp
Lennert Buytenhek9386.11%675.00%
Dale Farnsworth1110.19%112.50%
Ralf Bächle43.70%112.50%
Total108100.00%8100.00%


static void uc_addr_set(struct mv643xx_eth_private *mp, unsigned char *addr) { wrlp(mp, MAC_ADDR_HIGH, (addr[0] << 24) | (addr[1] << 16) | (addr[2] << 8) | addr[3]); wrlp(mp, MAC_ADDR_LOW, (addr[4] << 8) | addr[5]); }

Contributors

PersonTokensPropCommitsCommitProp
Lennert Buytenhek6990.79%466.67%
Paul Janzen56.58%116.67%
Dale Farnsworth22.63%116.67%
Total76100.00%6100.00%


static u32 uc_addr_filter_mask(struct net_device *dev) { struct netdev_hw_addr *ha; u32 nibbles; if (dev->flags & IFF_PROMISC) return 0; nibbles = 1 << (dev->dev_addr[5] & 0x0f); netdev_for_each_uc_addr(ha, dev) { if (memcmp(dev->dev_addr, ha->addr, 5)) return 0; if ((dev->dev_addr[5] ^ ha->addr[5]) & 0xf0) return 0; nibbles |= 1 << (ha->addr[5] & 0x0f); } return nibbles; }

Contributors

PersonTokensPropCommitsCommitProp
Lennert Buytenhek8475.00%337.50%
Dale Farnsworth1412.50%337.50%
Jiri Pirko1412.50%225.00%
Total112100.00%8100.00%


static void mv643xx_eth_program_unicast_filter(struct net_device *dev) { struct mv643xx_eth_private *mp = netdev_priv(dev); u32 port_config; u32 nibbles; int i; uc_addr_set(mp, dev->dev_addr); port_config = rdlp(mp, PORT_CONFIG) & ~UNICAST_PROMISCUOUS_MODE; nibbles = uc_addr_filter_mask(dev); if (!nibbles) { port_config |= UNICAST_PROMISCUOUS_MODE; nibbles = 0xffff; } for (i = 0; i < 16; i += 4) { int off = UNICAST_TABLE(mp->port_num) + i; u32 v; v = 0; if (nibbles & 1) v |= 0x00000001; if (nibbles & 2) v |= 0x00000100; if (nibbles & 4) v |= 0x00010000; if (nibbles & 8) v |= 0x01000000; nibbles >>= 4; wrl(mp, off, v); } wrlp(mp, PORT_CONFIG, port_config); }

Contributors

PersonTokensPropCommitsCommitProp
Lennert Buytenhek14283.53%555.56%
Dale Farnsworth1810.59%222.22%
Prabhanjan Sarnaik63.53%111.11%
Ralf Bächle42.35%111.11%
Total170100.00%9100.00%


static int addr_crc(unsigned char *addr) { int crc = 0; int i; for (i = 0; i < 6; i++) { int j; crc = (crc ^ addr[i]) << 8; for (j = 7; j >= 0; j--) { if (crc & (0x100 << j)) crc ^= 0x107 << j; } } return crc; }

Contributors

PersonTokensPropCommitsCommitProp
Lennert Buytenhek84100.00%1100.00%
Total84100.00%1100.00%


static void mv643xx_eth_program_multicast_filter(struct net_device *dev) { struct mv643xx_eth_private *mp = netdev_priv(dev); u32 *mc_spec; u32 *mc_other; struct netdev_hw_addr *ha; int i; if (dev->flags & (IFF_PROMISC | IFF_ALLMULTI)) goto promiscuous; /* Allocate both mc_spec and mc_other tables */ mc_spec = kcalloc(128, sizeof(u32), GFP_ATOMIC); if (!mc_spec) goto promiscuous; mc_other = &mc_spec[64]; netdev_for_each_mc_addr(ha, dev) { u8 *a = ha->addr; u32 *table; u8 entry; if (memcmp(a, "\x01\x00\x5e\x00\x00", 5) == 0) { table = mc_spec; entry = a[5]; } else { table = mc_other; entry = addr_crc(a); } table[entry >> 2] |= 1 << (8 * (entry & 3)); } for (i = 0; i < 64; i++) { wrl(mp, SPECIAL_MCAST_TABLE(mp->port_num) + i * sizeof(u32), mc_spec[i]); wrl(mp, OTHER_MCAST_TABLE(mp->port_num) + i * sizeof(u32), mc_other[i]); } kfree(mc_spec); return; promiscuous: for (i = 0; i < 64; i++) { wrl(mp, SPECIAL_MCAST_TABLE(mp->port_num) + i * sizeof(u32), 0x01010101u); wrl(mp, OTHER_MCAST_TABLE(mp->port_num) + i * sizeof(u32), 0x01010101u); } }

Contributors

PersonTokensPropCommitsCommitProp
Lennert Buytenhek16857.34%428.57%
Joe Perches8830.03%17.14%
Dale Farnsworth113.75%321.43%
Ralf Bächle103.41%17.14%
Jiri Pirko103.41%214.29%
James Chapman31.02%17.14%
Nicolas DET20.68%17.14%
Sebastian Andrzej Siewior10.34%17.14%
Total293100.00%14100.00%


static void mv643xx_eth_set_rx_mode(struct net_device *dev) { mv643xx_eth_program_unicast_filter(dev); mv643xx_eth_program_multicast_filter(dev); }

Contributors

PersonTokensPropCommitsCommitProp
Lennert Buytenhek21100.00%2100.00%
Total21100.00%2100.00%


static int mv643xx_eth_set_mac_address(struct net_device *dev, void *addr) { struct sockaddr *sa = addr; if (!is_valid_ether_addr(sa->sa_data)) return -EADDRNOTAVAIL; memcpy(dev->dev_addr, sa->sa_data, ETH_ALEN); netif_addr_lock_bh(dev); mv643xx_eth_program_unicast_filter(dev); netif_addr_unlock_bh(dev); return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Lennert Buytenhek5379.10%250.00%
Denis Kirjanov1319.40%125.00%
Danny Kukawka11.49%125.00%
Total67100.00%4100.00%

/* rx/tx queue initialisation ***********************************************/
static int rxq_init(struct mv643xx_eth_private *mp, int index) { struct rx_queue *rxq = mp->rxq + index; struct rx_desc *rx_desc; int size; int i; rxq->index = index; rxq->rx_ring_size = mp->rx_ring_size; rxq->rx_desc_count = 0; rxq->rx_curr_desc = 0; rxq->rx_used_desc = 0; size = rxq->rx_ring_size * sizeof(struct rx_desc); if (index == 0 && size <= mp->rx_desc_sram_size) { rxq->rx_desc_area = ioremap(mp->rx_desc_sram_addr, mp->rx_desc_sram_size); rxq->rx_desc_dma = mp->rx_desc_sram_addr; } else { rxq->rx_desc_area = dma_alloc_coherent(mp->dev->dev.parent, size, &rxq->rx_desc_dma, GFP_KERNEL); } if (rxq->rx_desc_area == NULL) { netdev_err(mp->dev, "can't allocate rx ring (%d bytes)\n", size); goto out; } memset(rxq->rx_desc_area, 0, size); rxq->rx_desc_area_size = size; rxq->rx_skb = kcalloc(rxq->rx_ring_size, sizeof(*rxq->rx_skb), GFP_KERNEL); if (rxq->rx_skb == NULL) goto out_free; rx_desc = rxq->rx_desc_area; for (i = 0; i < rxq->rx_ring_size; i++) { int nexti; nexti = i + 1; if (nexti == rxq->rx_ring_size) nexti = 0; rx_desc[i].next_desc_ptr = rxq->rx_desc_dma + nexti * sizeof(struct rx_desc); } return 0; out_free: if (index == 0 && size <= mp->rx_desc_sram_size) iounmap(rxq->rx_desc_area); else dma_free_coherent(mp->dev->dev.parent, size, rxq->rx_desc_area, rxq->rx_desc_dma); out: return -ENOMEM; }

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PersonTokensPropCommitsCommitProp
Lennert Buytenhek30090.36%1062.50%
Gabriel Paubert144.22%16.25%
Christoph Hellwig82.41%16.25%
Dale Farnsworth72.11%16.25%
Joe Perches20.60%212.50%
Lubomir Rintel10.30%16.25%
Total332100.00%16100.00%


static void rxq_deinit(struct rx_queue *rxq) { struct mv643xx_eth_private *mp = rxq_to_mp(rxq); int i; rxq_disable(rxq); for (i = 0; i < rxq->rx_ring_size; i++) { if (rxq->rx_skb[i]) { dev_kfree_skb(rxq->rx_skb[i]); rxq->rx_desc_count--; } } if (rxq->rx_desc_count) { netdev_err(mp->dev, "error freeing rx ring -- %d skbs stuck\n", rxq->rx_desc_count); } if (rxq->index == 0 && rxq->rx_desc_area_size <= mp->rx_desc_sram_size) iounmap(rxq->rx_desc_area); else dma_free_coherent(mp->dev->dev.parent, rxq->rx_desc_area_size, rxq->rx_desc_area, rxq->rx_desc_dma); kfree(rxq->rx_skb); }

Contributors

PersonTokensPropCommitsCommitProp
Lennert Buytenhek13994.56%675.00%
Gabriel Paubert74.76%112.50%
Joe Perches10.68%112.50%
Total147100.00%8100.00%


static int txq_init(struct mv643xx_eth_private *mp, int index) { struct tx_queue *txq = mp->txq + index; struct tx_desc *tx_desc; int size; int ret; int i; txq->index = index; txq->tx_ring_size = mp->tx_ring_size; /* A queue must always have room for at least one skb. * Therefore, stop the queue when the free entries reaches * the maximum number of descriptors per skb. */ txq->tx_stop_threshold = txq->tx_ring_size - MV643XX_MAX_SKB_DESCS; txq->tx_wake_threshold = txq->tx_stop_threshold / 2; txq->tx_desc_count = 0; txq->tx_curr_desc = 0; txq->tx_used_desc = 0; size = txq->tx_ring_size * sizeof(struct tx_desc); if (index == 0 && size <= mp->tx_desc_sram_size) { txq->tx_desc_area = ioremap(mp->tx_desc_sram_addr, mp->tx_desc_sram_size); txq->tx_desc_dma = mp->tx_desc_sram_addr; } else { txq->tx_desc_area = dma_alloc_coherent(mp->dev->dev.parent, size, &txq->tx_desc_dma, GFP_KERNEL); } if (txq->tx_desc_area == NULL) { netdev_err(mp->dev, "can't allocate tx ring (%d bytes)\n", size); return -ENOMEM; } memset(txq->tx_desc_area, 0, size); txq->tx_desc_area_size = size; tx_desc = txq->tx_desc_area; for (i = 0; i < txq->tx_ring_size; i++) { struct tx_desc *txd = tx_desc + i; int nexti; nexti = i + 1; if (nexti == txq->tx_ring_size) nexti = 0; txd->cmd_sts = 0; txd->next_desc_ptr = txq->tx_desc_dma + nexti * sizeof(struct tx_desc); } txq->tx_desc_mapping = kcalloc(txq->tx_ring_size, sizeof(char), GFP_KERNEL); if (!txq->tx_desc_mapping) { ret = -ENOMEM; goto err_free_desc_area; } /* Allocate DMA buffers for TSO MAC/IP/TCP headers */ txq->tso_hdrs = dma_alloc_coherent(mp->dev->dev.parent, txq->tx_ring_size * TSO_HEADER_SIZE, &txq->tso_hdrs_dma, GFP_KERNEL); if (txq->tso_hdrs == NULL) { ret = -ENOMEM; goto err_free_desc_mapping; } skb_queue_head_init(&txq->tx_skb); return 0; err_free_desc_mapping: kfree(txq->tx_desc_mapping); err_free_desc_area: if (index == 0 && size <= mp->tx_desc_sram_size) iounmap(txq->tx_desc_area); else dma_free_coherent(mp->dev->dev.parent, txq->tx_desc_area_size, txq->tx_desc_area, txq->tx_desc_dma); return ret; }

Contributors

PersonTokensPropCommitsCommitProp
Lennert Buytenhek25057.47%1361.90%
Ezequiel García17339.77%314.29%
Gabriel Paubert71.61%14.76%
Ralf Bächle20.46%14.76%
Joe Perches10.23%14.76%
Christoph Hellwig10.23%14.76%
Dale Farnsworth10.23%14.76%
Total435100.00%21100.00%


static void txq_deinit(struct tx_queue *txq) { struct mv643xx_eth_private *mp = txq_to_mp(txq); txq_disable(txq); txq_reclaim(txq, txq->tx_ring_size, 1); BUG_ON(txq->tx_used_desc != txq->tx_curr_desc); if (txq->index == 0 && txq->tx_desc_area_size <= mp->tx_desc_sram_size) iounmap(txq->tx_desc_area); else dma_free_coherent(mp->dev->dev.parent, txq->tx_desc_area_size, txq->tx_desc_area, txq->tx_desc_dma); kfree(txq->tx_desc_mapping); if (txq->tso_hdrs) dma_free_coherent(mp->dev->dev.parent, txq->tx_ring_size * TSO_HEADER_SIZE, txq->tso_hdrs, txq->tso_hdrs_dma); }

Contributors

PersonTokensPropCommitsCommitProp
Lennert Buytenhek8765.41%660.00%
Ezequiel García3828.57%220.00%
Gabriel Paubert75.26%110.00%
Dale Farnsworth10.75%110.00%
Total133100.00%10100.00%

/* netdev ops and related ***************************************************/
static int mv643xx_eth_collect_events(struct mv643xx_eth_private *mp) { u32 int_cause; u32 int_cause_ext; int_cause = rdlp(mp, INT_CAUSE) & mp->int_mask; if (int_cause == 0) return 0; int_cause_ext = 0; if (int_cause & INT_EXT) { int_cause &= ~INT_EXT; int_cause_ext = rdlp(mp, INT_CAUSE_EXT); } if (int_cause) { wrlp(mp, INT_CAUSE, ~int_cause); mp->work_tx_end |= ((int_cause & INT_TX_END) >> 19) & ~(rdlp(mp, TXQ_COMMAND) & 0xff); mp->work_rx |= (int_cause & INT_RX) >> 2; } int_cause_ext &= INT_EXT_LINK_PHY | INT_EXT_TX; if (int_cause_ext) { wrlp(mp, INT_CAUSE_EXT, ~int_cause_ext); if (int_cause_ext & INT_EXT_LINK_PHY) mp->work_link = 1; mp->work_tx |= int_cause_ext & INT_EXT_TX; } return 1; }

Contributors

PersonTokensPropCommitsCommitProp
Lennert Buytenhek15192.07%660.00%
Saeed Bishara106.10%110.00%
Ralf Bächle10.61%110.00%
Dale Farnsworth10.61%110.00%
Christoph Hellwig10.61%110.00%
Total164100.00%10100.00%


static irqreturn_t mv643xx_eth_irq(int irq, void *dev_id) { struct net_device *dev = (struct net_device *)dev_id; struct mv643xx_eth_private *mp = netdev_priv(dev); if (unlikely(!mv643xx_eth_collect_events(mp))) return IRQ_NONE; wrlp(mp, INT_MASK, 0); napi_schedule(&mp->napi); return IRQ_HANDLED; }

Contributors

PersonTokensPropCommitsCommitProp
Lennert Buytenhek5579.71%583.33%
Dale Farnsworth1420.29%116.67%
Total69100.00%6100.00%


static void handle_link_event(struct mv643xx_eth_private *mp) { struct net_device *dev = mp->dev; u32 port_status; int speed; int duplex; int fc; port_status = rdlp(mp, PORT_STATUS); if (!(port_status & LINK_UP)) { if (netif_carrier_ok(dev)) { int i; netdev_info(dev, "link down\n"); netif_carrier_off(dev); for (i = 0; i < mp->txq_count; i++) { struct tx_queue *txq = mp->txq + i; txq_reclaim(txq, txq->tx_ring_size, 1); txq_reset_hw_ptr(txq); } } return; } switch (port_status & PORT_SPEED_MASK) { case PORT_SPEED_10: speed = 10; break; case PORT_SPEED_100: speed = 100; break; case PORT_SPEED_1000: speed = 1000; break; default: speed = -1; break; } duplex = (port_status & FULL_DUPLEX) ? 1 : 0; fc = (port_status & FLOW_CONTROL_ENABLED) ? 1 : 0; netdev_info(dev, "link up, %d Mb/s, %s duplex, flow control %sabled\n", speed, duplex ? "full" : "half", fc ? "en" : "dis"); if (!netif_carrier_ok(dev)) netif_carrier_on(dev); }

Contributors

PersonTokensPropCommitsCommitProp
Lennert Buytenhek21297.25%480.00%
Joe Perches62.75%120.00%
Total218100.00%5100.00%


static int mv643xx_eth_poll(struct napi_struct *napi, int budget) { struct mv643xx_eth_private *mp; int work_done; mp = container_of(napi, struct mv643xx_eth_private, napi); if (unlikely(mp->oom)) { mp->oom = 0; del_timer(&mp->rx_oom); } work_done = 0; while (work_done < budget) { u8 queue_mask; int queue; int work_tbd; if (mp->work_link) { mp->work_link = 0; handle_link_event(mp); work_done++; continue; } queue_mask = mp->work_tx | mp->work_tx_end | mp->work_rx; if (likely(!mp->oom)) queue_mask |= mp->work_rx_refill; if (!queue_mask) { if (mv643xx_eth_collect_events(mp)) continue; break; } queue = fls(queue_mask) - 1; queue_mask = 1 << queue; work_tbd = budget - work_done; if (work_tbd > 16) work_tbd = 16; if (mp->work_tx_end & queue_mask) { txq_kick(mp->txq + queue); } else if (mp->work_tx & queue_mask) { work_done += txq_reclaim(mp->txq + queue, work_tbd, 0); txq_maybe_wake(mp->txq + queue); } else if (mp->work_rx & queue_mask) { work_done += rxq_process(mp->rxq + queue, work_tbd); } else if (!mp->oom && (mp->work_rx_refill & queue_mask)) { work_done += rxq_refill(mp->rxq + queue, work_tbd); } else { BUG(); } } if (work_done < budget) { if (mp->oom) mod_timer(&mp->rx_oom, jiffies + (HZ / 10)); napi_complete_done(napi, work_done); wrlp(mp, INT_MASK, mp->int_mask); } return work_done; }

Contributors

PersonTokensPropCommitsCommitProp
Lennert Buytenhek32894.80%1365.00%
Ralf Bächle61.73%15.00%
Dale Farnsworth51.45%315.00%
Eric Dumazet30.87%15.00%
Saeed Bishara30.87%15.00%
Christoph Hellwig10.29%15.00%
Total346100.00%20100.00%


static inline void oom_timer_wrapper(unsigned long data) { struct mv643xx_eth_private *mp = (void *)data; napi_schedule(&mp->napi); }

Contributors

PersonTokensPropCommitsCommitProp
Lennert Buytenhek2893.33%480.00%
Ralf Bächle26.67%120.00%
Total30100.00%5100.00%


static void port_start(struct mv643xx_eth_private *mp) { struct net_device *dev = mp->dev; u32 pscr; int i; /* * Perform PHY reset, if there is a PHY. */ if (dev->phydev) { struct ethtool_link_ksettings cmd; mv643xx_eth_get_link_ksettings(dev, &cmd); phy_init_hw(dev->phydev); mv643xx_eth_set_link_ksettings( dev, (const struct ethtool_link_ksettings *)&cmd); phy_start(dev->phydev); } /* * Configure basic link parameters. */ pscr = rdlp(mp, PORT_SERIAL_CONTROL); pscr |= SERIAL_PORT_ENABLE; wrlp(mp, PORT_SERIAL_CONTROL, pscr); pscr |= DO_NOT_FORCE_LINK_FAIL; if (!dev->phydev) pscr |= FORCE_LINK_PASS; wrlp(mp, PORT_SERIAL_CONTROL, pscr); /* * Configure TX path and queues. */ tx_set_rate(mp, 1000000000, 16777216); for (i = 0; i < mp->txq_count; i++) { struct tx_queue *txq = mp->txq + i; txq_reset_hw_ptr(txq); txq_set_rate(txq, 1000000000, 16777216); txq_set_fixed_prio_mode(txq); } /* * Receive all unmatched unicast, TCP, UDP, BPDU and broadcast * frames to RX queue #0, and include the pseudo-header when * calculating receive checksums. */ mv643xx_eth_set_features(mp->dev, mp->dev->features); /* * Treat BPDUs as normal multicasts, and disable partition mode. */ wrlp(mp, PORT_CONFIG_EXT, 0x00000000); /* * Add configured unicast addresses to address filter table. */ mv643xx_eth_program_unicast_filter(mp->dev); /* * Enable the receive queues. */ for (i = 0; i < mp->rxq_count; i++) { struct rx_queue *rxq = mp->rxq + i; u32 addr; addr = (u32)rxq->rx_desc_dma; addr += rxq->rx_curr_desc * sizeof(struct rx_desc); wrlp(mp, RXQ_CURRENT_DESC_PTR(i), addr); rxq_enable(rxq); } }

Contributors

PersonTokensPropCommitsCommitProp
Lennert Buytenhek22580.07%1869.23%
Philippe Reynes279.61%27.69%
Ralf Bächle103.56%13.85%
Michał Mirosław51.78%13.85%
Sebastian Hesselbarth51.78%13.85%
David S. Miller41.42%13.85%
James Chapman31.07%13.85%
Florian Fainelli20.71%13.85%
Total281100.00%26100.00%


static void mv643xx_eth_recalc_skb_size(struct mv643xx_eth_private *mp) { int skb_size; /* * Reserve 2+14 bytes for an ethernet header (the hardware * automatically prepends 2 bytes of dummy data to each * received packet), 16 bytes for up to four VLAN tags, and * 4 bytes for the trailing FCS -- 36 bytes total. */ skb_size = mp->dev->mtu + 36; /* * Make sure that the skb size is a multiple of 8 bytes, as * the lower three bits of the receive descriptor's buffer * size field are ignored by the hardware. */ mp->skb_size = (skb_size + 7) & ~7; /* * If NET_SKB_PAD is smaller than a cache line, * netdev_alloc_skb() will cause skb->data to be misaligned * to a cache line boundary. If this is the case, include * some extra space to allow re-aligning the data area. */ mp->skb_size += SKB_DMA_REALIGN; }

Contributors

PersonTokensPropCommitsCommitProp
Lennert Buytenhek46100.00%2100.00%
Total46100.00%2100.00%


static int mv643xx_eth_open(struct net_device *dev) { struct mv643xx_eth_private *mp = netdev_priv(dev); int err; int i; wrlp(mp, INT_CAUSE, 0); wrlp(mp, INT_CAUSE_EXT, 0); rdlp(mp, INT_CAUSE_EXT); err = request_irq(dev->irq, mv643xx_eth_irq, IRQF_SHARED, dev->name, dev); if (err) { netdev_err(dev, "can't assign irq\n"); return -EAGAIN; } mv643xx_eth_recalc_skb_size(mp); napi_enable(&mp->napi); mp->int_mask = INT_EXT; for (i = 0; i < mp->rxq_count; i++) { err = rxq_init(mp, i); if (err) { while (--i >= 0) rxq_deinit(mp->rxq + i); goto out; } rxq_refill(mp->rxq + i, INT_MAX); mp->int_mask |= INT_RX_0 << i; } if (mp->oom) { mp->rx_oom.expires = jiffies + (HZ / 10); add_timer(&mp->rx_oom); } for (i = 0; i < mp->txq_count; i++) { err = txq_init(mp, i); if (err) { while (--i >= 0) txq_deinit(mp->txq + i); goto out_free; } mp->int_mask |= INT_TX_END_0 << i; } add_timer(&mp->mib_counters_timer); port_start(mp); wrlp(mp, INT_MASK_EXT, INT_EXT_LINK_PHY | INT_EXT_TX); wrlp(mp, INT_MASK, mp->int_mask); return 0; out_free: for (i = 0; i < mp->rxq_count; i++) rxq_deinit(mp->rxq + i); out: free_irq(dev->irq, dev); return err; }

Contributors

PersonTokensPropCommitsCommitProp
Lennert Buytenhek29485.47%1875.00%
Saeed Bishara257.27%14.17%
Dale Farnsworth133.78%28.33%
Sebastian Hesselbarth82.33%14.17%
Ralf Bächle30.87%14.17%
Joe Perches10.29%14.17%
Total344100.00%24100.00%


static void port_reset(struct mv643xx_eth_private *mp) { unsigned int data; int i; for (i = 0; i < mp->rxq_count; i++) rxq_disable(mp->rxq + i); for (i = 0; i < mp->txq_count; i++) txq_disable(mp->txq + i); while (1) { u32 ps = rdlp(mp, PORT_STATUS); if ((ps & (TX_IN_PROGRESS | TX_FIFO_EMPTY)) == TX_FIFO_EMPTY) break; udelay(10); } /* Reset the Enable bit in the Configuration Register */ data = rdlp(mp, PORT_SERIAL_CONTROL); data &= ~(SERIAL_PORT_ENABLE | DO_NOT_FORCE_LINK_FAIL | FORCE_LINK_PASS); wrlp(mp, PORT_SERIAL_CONTROL, data); }

Contributors

PersonTokensPropCommitsCommitProp
Lennert Buytenhek10176.52%1292.31%
Dale Farnsworth3123.48%17.69%
Total132100.00%13100.00%


static int mv643xx_eth_stop(struct net_device *dev) { struct mv643xx_eth_private *mp = netdev_priv(dev); int i; wrlp(mp, INT_MASK_EXT, 0x00000000); wrlp(mp, INT_MASK, 0x00000000); rdlp(mp, INT_MASK); napi_disable(&mp->napi); del_timer_sync(&mp->rx_oom); netif_carrier_off(dev); if (dev->phydev) phy_stop(dev->phydev); free_irq(dev->irq, dev); port_reset(mp); mv643xx_eth_get_stats(dev); mib_counters_update(mp); del_timer_sync(&mp->mib_counters_timer); for (i = 0; i < mp->rxq_count; i++) rxq_deinit(mp->rxq + i); for (i = 0; i < mp->txq_count; i++) txq_deinit(mp->txq + i); return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Lennert Buytenhek11267.47%1562.50%
Ralf Bächle106.02%14.17%
Sebastian Hesselbarth95.42%14.17%
Gabriel Paubert95.42%14.17%
Dale Farnsworth95.42%312.50%
Sebastian Andrzej Siewior84.82%14.17%
James Chapman53.01%14.17%
Philippe Reynes42.41%14.17%
Total166100.00%24100.00%


static int mv643xx_eth_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) { int ret; if (!dev->phydev) return -ENOTSUPP; ret = phy_mii_ioctl(dev->phydev, ifr, cmd); if (!ret) mv643xx_eth_adjust_link(dev); return ret; }

Contributors

PersonTokensPropCommitsCommitProp
Lennert Buytenhek2745.76%550.00%
Phil Sutter1830.51%110.00%
Dale Farnsworth711.86%220.00%
Philippe Reynes58.47%110.00%
Ezequiel García23.39%110.00%
Total59100.00%10100.00%


static int mv643xx_eth_change_mtu(struct net_device *dev, int new_mtu) { struct mv643xx_eth_private *mp = netdev_priv(dev); dev->mtu = new_mtu; mv643xx_eth_recalc_skb_size(mp); tx_set_rate(mp, 1000000000, 16777216); if (!netif_running(dev)) return 0; /* * Stop and then re-open the interface. This will allocate RX * skbs of the new MTU. * There is a possible danger that the open will not succeed, * due to memory being full. */ mv643xx_eth_stop(dev); if (mv643xx_eth_open(dev)) { netdev_err(dev, "fatal error on re-opening device after MTU change\n"); } return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Lennert Buytenhek5872.50%550.00%
Dale Farnsworth1518.75%330.00%
Ralf Bächle56.25%110.00%
Joe Perches22.50%110.00%
Total80100.00%10100.00%


static void tx_timeout_task(struct work_struct *ugly) { struct mv643xx_eth_private *mp; mp = container_of(ugly, struct mv643xx_eth_private, tx_timeout_task); if (netif_running(mp->dev)) { netif_tx_stop_all_queues(mp->dev); port_reset(mp); port_start(mp); netif_tx_wake_all_queues(mp->dev); } }

Contributors

PersonTokensPropCommitsCommitProp
Lennert Buytenhek5384.13%981.82%
Ralf Bächle57.94%19.09%
Dale Farnsworth57.94%19.09%
Total63100.00%11100.00%


static void mv643xx_eth_tx_timeout(struct net_device *dev) { struct mv643xx_eth_private *mp = netdev_priv(dev); netdev_info(dev, "tx timeout\n"); schedule_work(&mp->tx_timeout_task); }

Contributors

PersonTokensPropCommitsCommitProp
Lennert Buytenhek2672.22%555.56%
Ralf Bächle719.44%111.11%
Dale Farnsworth25.56%222.22%
Joe Perches12.78%111.11%
Total36100.00%9100.00%

#ifdef CONFIG_NET_POLL_CONTROLLER
static void mv643xx_eth_netpoll(struct net_device *dev) { struct mv643xx_eth_private *mp = netdev_priv(dev); wrlp(mp, INT_MASK, 0x00000000); rdlp(mp, INT_MASK); mv643xx_eth_irq(dev->irq, dev); wrlp(mp, INT_MASK, mp->int_mask); }

Contributors

PersonTokensPropCommitsCommitProp
Lennert Buytenhek4375.44%872.73%
Dale Farnsworth712.28%19.09%
Ralf Bächle47.02%19.09%
Saeed Bishara35.26%19.09%
Total57100.00%11100.00%

#endif /* platform glue ************************************************************/
static void mv643xx_eth_conf_mbus_windows(struct mv643xx_eth_shared_private *msp, const struct mbus_dram_target_info *dram) { void __iomem *base = msp->base; u32 win_enable; u32 win_protect; int i; for (i = 0; i < 6; i++) { writel(0, base + WINDOW_BASE(i)); writel(0, base + WINDOW_SIZE(i)); if (i < 4) writel(0, base + WINDOW_REMAP_HIGH(i)); } win_enable = 0x3f; win_protect = 0; for (i = 0; i < dram->num_cs; i++) { const struct mbus_dram_window *cs = dram->cs + i; writel((cs->base & 0xffff0000) | (cs->mbus_attr << 8) | dram->mbus_dram_target_id, base + WINDOW_BASE(i)); writel((cs->size - 1) & 0xffff0000, base + WINDOW_SIZE(i)); win_enable &= ~(1 << i); win_protect |= 3 << (2 * i); } writel(win_enable, base + WINDOW_BAR_ENABLE); msp->win_protect = win_protect; }

Contributors

PersonTokensPropCommitsCommitProp
Lennert Buytenhek17582.16%444.44%
Dale Farnsworth2310.80%222.22%
Ralf Bächle83.76%111.11%
James Chapman52.35%111.11%
Andrew Lunn20.94%111.11%
Total213100.00%9100.00%


static void infer_hw_params(struct mv643xx_eth_shared_private *msp) { /* * Check whether we have a 14-bit coal limit field in bits * [21:8], or a 16-bit coal limit in bits [25,21:7] of the * SDMA config register. */ writel(0x02000000, msp->base + 0x0400 + SDMA_CONFIG); if (readl(msp->base + 0x0400 + SDMA_CONFIG) & 0x02000000) msp->extended_rx_coal_limit = 1; else msp->extended_rx_coal_limit = 0; /* * Check whether the MAC supports TX rate control, and if * yes, whether its associated registers are in the old or * the new place. */ writel(1, msp->base + 0x0400 + TX_BW_MTU_MOVED); if (readl(msp->base + 0x0400 + TX_BW_MTU_MOVED) & 1) { msp->tx_bw_control = TX_BW_CONTROL_NEW_LAYOUT; } else { writel(7, msp->base + 0x0400 + TX_BW_RATE); if (readl(msp->base + 0x0400 + TX_BW_RATE) & 7) msp->tx_bw_control = TX_BW_CONTROL_OLD_LAYOUT; else msp->tx_bw_control = TX_BW_CONTROL_ABSENT; } }

Contributors

PersonTokensPropCommitsCommitProp
Lennert Buytenhek134100.00%4100.00%
Total134100.00%4100.00%

#if defined(CONFIG_OF) static const struct of_device_id mv643xx_eth_shared_ids[] = { { .compatible = "marvell,orion-eth", }, { .compatible = "marvell,kirkwood-eth", }, { } }; MODULE_DEVICE_TABLE(of, mv643xx_eth_shared_ids); #endif #if defined(CONFIG_OF_IRQ) && !defined(CONFIG_MV64X60) #define mv643xx_eth_property(_np, _name, _v) \ do { \ u32 tmp; \ if (!of_property_read_u32(_np, "marvell," _name, &tmp)) \ _v = tmp; \ } while (0) static struct platform_device *port_platdev[3];
static int mv643xx_eth_shared_of_add_port(struct platform_device *pdev, struct device_node *pnp) { struct platform_device *ppdev; struct mv643xx_eth_platform_data ppd; struct resource res; const char *mac_addr; int ret; int dev_num = 0; memset(&ppd, 0, sizeof(ppd)); ppd.shared = pdev; memset(&res, 0, sizeof(res)); if (!of_irq_to_resource(pnp, 0, &res)) { dev_err(&pdev->dev, "missing interrupt on %s\n", pnp->name); return -EINVAL; } if (of_property_read_u32(pnp, "reg", &ppd.port_number)) { dev_err(&pdev->dev, "missing reg property on %s\n", pnp->name); return -EINVAL; } if (ppd.port_number >= 3) { dev_err(&pdev->dev, "invalid reg property on %s\n", pnp->name); return -EINVAL; } while (dev_num < 3 && port_platdev[dev_num]) dev_num++; if (dev_num == 3) { dev_err(&pdev->dev, "too many ports registered\n"); return -EINVAL; } mac_addr = of_get_mac_address(pnp); if (mac_addr) memcpy(ppd.mac_addr, mac_addr, ETH_ALEN); mv643xx_eth_property(pnp, "tx-queue-size", ppd.tx_queue_size); mv643xx_eth_property(pnp, "tx-sram-addr", ppd.tx_sram_addr); mv643xx_eth_property(pnp, "tx-sram-size", ppd.tx_sram_size); mv643xx_eth_property(pnp, "rx-queue-size", ppd.rx_queue_size); mv643xx_eth_property(pnp, "rx-sram-addr", ppd.rx_sram_addr); mv643xx_eth_property(pnp, "rx-sram-size", ppd.rx_sram_size); ppd.phy_node = of_parse_phandle(pnp, "phy-handle", 0); if (!ppd.phy_node) { ppd.phy_addr = MV643XX_ETH_PHY_NONE; of_property_read_u32(pnp, "speed", &ppd.speed); of_property_read_u32(pnp, "duplex", &ppd.duplex); } ppdev = platform_device_alloc(MV643XX_ETH_NAME, dev_num); if (!ppdev) return -ENOMEM; ppdev->dev.coherent_dma_mask = DMA_BIT_MASK(32); ppdev->dev.of_node = pnp; ret = platform_device_add_resources(ppdev, &res, 1); if (ret) goto port_err; ret = platform_device_add_data(ppdev, &ppd, sizeof(ppd)); if (ret) goto port_err; ret = platform_device_add(ppdev); if (ret) goto port_err; port_platdev[dev_num] = ppdev; return 0; port_err: platform_device_put(ppdev); return ret; }

Contributors

PersonTokensPropCommitsCommitProp
Sebastian Hesselbarth37782.49%533.33%
Jonas Gorski439.41%16.67%
Lennert Buytenhek245.25%426.67%
Florian Fainelli61.31%16.67%
Andrew Lunn30.66%16.67%
Ralf Bächle20.44%16.67%
Joe Perches10.22%16.67%
Dale Farnsworth10.22%16.67%
Total457100.00%15100.00%


static int mv643xx_eth_shared_of_probe(struct platform_device *pdev) { struct mv643xx_eth_shared_platform_data *pd; struct device_node *pnp, *np = pdev->dev.of_node; int ret; /* bail out if not registered from DT */ if (!np) return 0; pd = devm_kzalloc(&pdev->dev, sizeof(*pd), GFP_KERNEL); if (!pd) return -ENOMEM; pdev->dev.platform_data = pd; mv643xx_eth_property(np, "tx-checksum-limit", pd->tx_csum_limit); for_each_available_child_of_node(np, pnp) { ret = mv643xx_eth_shared_of_add_port(pdev, pnp); if (ret) { of_node_put(pnp); return ret; } } return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Sebastian Hesselbarth11594.26%150.00%
Julia Lawall75.74%150.00%
Total122100.00%2100.00%


static void mv643xx_eth_shared_of_remove(void) { int n; for (n = 0; n < 3; n++) { platform_device_del(port_platdev[n]); port_platdev[n] = NULL; } }

Contributors

PersonTokensPropCommitsCommitProp
Sebastian Hesselbarth41100.00%1100.00%
Total41100.00%1100.00%

#else
static inline int mv643xx_eth_shared_of_probe(struct platform_device *pdev) { return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Sebastian Hesselbarth1386.67%150.00%
Arnd Bergmann213.33%150.00%
Total15100.00%2100.00%


static inline void mv643xx_eth_shared_of_remove(void) { }

Contributors

PersonTokensPropCommitsCommitProp
Arnd Bergmann787.50%150.00%
Sebastian Hesselbarth112.50%150.00%
Total8100.00%2100.00%

#endif
static int mv643xx_eth_shared_probe(struct platform_device *pdev) { static int mv643xx_eth_version_printed; struct mv643xx_eth_shared_platform_data *pd; struct mv643xx_eth_shared_private *msp; const struct mbus_dram_target_info *dram; struct resource *res; int ret; if (!mv643xx_eth_version_printed++) pr_notice("MV-643xx 10/100/1000 ethernet driver version %s\n", mv643xx_eth_driver_version); res = platform_get_resource(pdev, IORESOURCE_MEM, 0); if (res == NULL) return -EINVAL; msp = devm_kzalloc(&pdev->dev, sizeof(*msp), GFP_KERNEL); if (msp == NULL) return -ENOMEM; platform_set_drvdata(pdev, msp); msp->base = devm_ioremap(&pdev->dev, res->start, resource_size(res)); if (msp->base == NULL) return -ENOMEM; msp->clk = devm_clk_get(&pdev->dev, NULL); if (!IS_ERR(msp->clk)) clk_prepare_enable(msp->clk); /* * (Re-)program MBUS remapping windows if we are asked to. */ dram = mv_mbus_dram_info(); if (dram) mv643xx_eth_conf_mbus_windows(msp, dram); ret = mv643xx_eth_shared_of_probe(pdev); if (ret) return ret; pd = dev_get_platdata(&pdev->dev); msp->tx_csum_limit = (pd != NULL && pd->tx_csum_limit) ? pd->tx_csum_limit : 9 * 1024; infer_hw_params(msp); return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Sebastian Hesselbarth19178.60%220.00%
Lennert Buytenhek208.23%330.00%
Saeed Bishara166.58%110.00%
Dan Carpenter62.47%110.00%
Andrew Lunn52.06%110.00%
Jingoo Han41.65%110.00%
Ralf Bächle10.41%110.00%
Total243100.00%10100.00%


static int mv643xx_eth_shared_remove(struct platform_device *pdev) { struct mv643xx_eth_shared_private *msp = platform_get_drvdata(pdev); mv643xx_eth_shared_of_remove(); if (!IS_ERR(msp->clk)) clk_disable_unprepare(msp->clk); return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Sebastian Hesselbarth2045.45%233.33%
Dale Farnsworth1227.27%116.67%
Lennert Buytenhek818.18%233.33%
Ralf Bächle49.09%116.67%
Total44100.00%6100.00%

static struct platform_driver mv643xx_eth_shared_driver = { .probe = mv643xx_eth_shared_probe, .remove = mv643xx_eth_shared_remove, .driver = { .name = MV643XX_ETH_SHARED_NAME, .of_match_table = of_match_ptr(mv643xx_eth_shared_ids), }, };
static void phy_addr_set(struct mv643xx_eth_private *mp, int phy_addr) { int addr_shift = 5 * mp->port_num; u32 data; data = rdl(mp, PHY_ADDR); data &= ~(0x1f << addr_shift); data |= (phy_addr & 0x1f) << addr_shift; wrl(mp, PHY_ADDR, data); }

Contributors

PersonTokensPropCommitsCommitProp
Lennert Buytenhek4469.84%583.33%
Ralf Bächle1930.16%116.67%
Total63100.00%6100.00%


static int phy_addr_get(struct mv643xx_eth_private *mp) { unsigned int data; data = rdl(mp, PHY_ADDR); return (data >> (5 * mp->port_num)) & 0x1f; }

Contributors

PersonTokensPropCommitsCommitProp
Lennert Buytenhek2974.36%571.43%
Ralf Bächle512.82%114.29%
Dale Farnsworth512.82%114.29%
Total39100.00%7100.00%


static void set_params(struct mv643xx_eth_private *mp, struct mv643xx_eth_platform_data *pd) { struct net_device *dev = mp->dev; unsigned int tx_ring_size; if (is_valid_ether_addr(pd->mac_addr)) memcpy(dev->dev_addr, pd->mac_addr, ETH_ALEN); else uc_addr_get(mp, dev->dev_addr); mp->rx_ring_size = DEFAULT_RX_QUEUE_SIZE; if (pd->rx_queue_size) mp->rx_ring_size = pd->rx_queue_size; mp->rx_desc_sram_addr = pd->rx_sram_addr; mp->rx_desc_sram_size = pd->rx_sram_size; mp->rxq_count = pd->rx_queue_count ? : 1; tx_ring_size = DEFAULT_TX_QUEUE_SIZE; if (pd->tx_queue_size) tx_ring_size = pd->tx_queue_size; mp->tx_ring_size = clamp_t(unsigned int, tx_ring_size, MV643XX_MAX_SKB_DESCS * 2, 4096); if (mp->tx_ring_size != tx_ring_size) netdev_warn(dev, "TX queue size set to %u (requested %u)\n", mp->tx_ring_size, tx_ring_size); mp->tx_desc_sram_addr = pd->tx_sram_addr; mp->tx_desc_sram_size = pd->tx_sram_size; mp->txq_count = pd->tx_queue_count ? : 1; }

Contributors

PersonTokensPropCommitsCommitProp
Lennert Buytenhek13772.87%763.64%
Ezequiel García4121.81%19.09%
Ralf Bächle73.72%19.09%
Dale Farnsworth21.06%19.09%
Joe Perches10.53%19.09%
Total188100.00%11100.00%


static int get_phy_mode(struct mv643xx_eth_private *mp) { struct device *dev = mp->dev->dev.parent; int iface = -1; if (dev->of_node) iface = of_get_phy_mode(dev->of_node); /* Historical default if unspecified. We could also read/write * the interface state in the PSC1 */ if (iface < 0) iface = PHY_INTERFACE_MODE_GMII; return iface; }

Contributors

PersonTokensPropCommitsCommitProp
Jason Gunthorpe59100.00%1100.00%
Total59100.00%1100.00%


static struct phy_device *phy_scan(struct mv643xx_eth_private *mp, int phy_addr) { struct phy_device *phydev; int start; int num; int i; char phy_id[MII_BUS_ID_SIZE + 3]; if (phy_addr == MV643XX_ETH_PHY_ADDR_DEFAULT) { start = phy_addr_get(mp) & 0x1f; num = 32; } else { start = phy_addr & 0x1f; num = 1; } /* Attempt to connect to the PHY using orion-mdio */ phydev = ERR_PTR(-ENODEV); for (i = 0; i < num; i++) { int addr = (start + i) & 0x1f; snprintf(phy_id, sizeof(phy_id), PHY_ID_FMT, "orion-mdio-mii", addr); phydev = phy_connect(mp->dev, phy_id, mv643xx_eth_adjust_link, get_phy_mode(mp)); if (!IS_ERR(phydev)) { phy_addr_set(mp, addr); break; } } return phydev; }

Contributors

PersonTokensPropCommitsCommitProp
Lennert Buytenhek10866.67%444.44%
Florian Fainelli3622.22%111.11%
Simon Baatz53.09%111.11%
Dale Farnsworth53.09%111.11%
Jason Gunthorpe42.47%111.11%
Ralf Bächle42.47%111.11%
Total162100.00%9100.00%


static void phy_init(struct mv643xx_eth_private *mp, int speed, int duplex) { struct net_device *dev = mp->dev; struct phy_device *phy = dev->phydev; if (speed == 0) { phy->autoneg = AUTONEG_ENABLE; phy->speed = 0; phy->duplex = 0; phy->advertising = phy->supported | ADVERTISED_Autoneg; } else { phy->autoneg = AUTONEG_DISABLE; phy->advertising = 0; phy->speed = speed; phy->duplex = duplex; } phy_start_aneg(phy); }

Contributors

PersonTokensPropCommitsCommitProp
Lennert Buytenhek8784.47%466.67%
Philippe Reynes1110.68%116.67%
Dale Farnsworth54.85%116.67%
Total103100.00%6100.00%


static void init_pscr(struct mv643xx_eth_private *mp, int speed, int duplex) { struct net_device *dev = mp->dev; u32 pscr; pscr = rdlp(mp, PORT_SERIAL_CONTROL); if (pscr & SERIAL_PORT_ENABLE) { pscr &= ~SERIAL_PORT_ENABLE; wrlp(mp, PORT_SERIAL_CONTROL, pscr); } pscr = MAX_RX_PACKET_9700BYTE | SERIAL_PORT_CONTROL_RESERVED; if (!dev->phydev) { pscr |= DISABLE_AUTO_NEG_SPEED_GMII; if (speed == SPEED_1000) pscr |= SET_GMII_SPEED_TO_1000; else if (speed == SPEED_100) pscr |= SET_MII_SPEED_TO_100; pscr |= DISABLE_AUTO_NEG_FOR_FLOW_CTRL; pscr |= DISABLE_AUTO_NEG_FOR_DUPLEX; if (duplex == DUPLEX_FULL) pscr |= SET_FULL_DUPLEX_MODE; } wrlp(mp, PORT_SERIAL_CONTROL, pscr); }

Contributors

PersonTokensPropCommitsCommitProp
Lennert Buytenhek11489.76%360.00%
Philippe Reynes129.45%120.00%
Dale Farnsworth10.79%120.00%
Total127100.00%5100.00%

static const struct net_device_ops mv643xx_eth_netdev_ops = { .ndo_open = mv643xx_eth_open, .ndo_stop = mv643xx_eth_stop, .ndo_start_xmit = mv643xx_eth_xmit, .ndo_set_rx_mode = mv643xx_eth_set_rx_mode, .ndo_set_mac_address = mv643xx_eth_set_mac_address, .ndo_validate_addr = eth_validate_addr, .ndo_do_ioctl = mv643xx_eth_ioctl, .ndo_change_mtu = mv643xx_eth_change_mtu, .ndo_set_features = mv643xx_eth_set_features, .ndo_tx_timeout = mv643xx_eth_tx_timeout, .ndo_get_stats = mv643xx_eth_get_stats, #ifdef CONFIG_NET_POLL_CONTROLLER .ndo_poll_controller = mv643xx_eth_netpoll, #endif };
static int mv643xx_eth_probe(struct platform_device *pdev) { struct mv643xx_eth_platform_data *pd; struct mv643xx_eth_private *mp; struct net_device *dev; struct phy_device *phydev = NULL; struct resource *res; int err; pd = dev_get_platdata(&pdev->dev); if (pd == NULL) { dev_err(&pdev->dev, "no mv643xx_eth_platform_data\n"); return -ENODEV; } if (pd->shared == NULL) { dev_err(&pdev->dev, "no mv643xx_eth_platform_data->shared\n"); return -ENODEV; } dev = alloc_etherdev_mq(sizeof(struct mv643xx_eth_private), 8); if (!dev) return -ENOMEM; SET_NETDEV_DEV(dev, &pdev->dev); mp = netdev_priv(dev); platform_set_drvdata(pdev, mp); mp->shared = platform_get_drvdata(pd->shared); mp->base = mp->shared->base + 0x0400 + (pd->port_number << 10); mp->port_num = pd->port_number; mp->dev = dev; /* Kirkwood resets some registers on gated clocks. Especially * CLK125_BYPASS_EN must be cleared but is not available on * all other SoCs/System Controllers using this driver. */ if (of_device_is_compatible(pdev->dev.of_node, "marvell,kirkwood-eth-port")) wrlp(mp, PORT_SERIAL_CONTROL1, rdlp(mp, PORT_SERIAL_CONTROL1) & ~CLK125_BYPASS_EN); /* * Start with a default rate, and if there is a clock, allow * it to override the default. */ mp->t_clk = 133000000; mp->clk = devm_clk_get(&pdev->dev, NULL); if (!IS_ERR(mp->clk)) { clk_prepare_enable(mp->clk); mp->t_clk = clk_get_rate(mp->clk); } else if (!IS_ERR(mp->shared->clk)) { mp->t_clk = clk_get_rate(mp->shared->clk); } set_params(mp, pd); netif_set_real_num_tx_queues(dev, mp->txq_count); netif_set_real_num_rx_queues(dev, mp->rxq_count); err = 0; if (pd->phy_node) { phydev = of_phy_connect(mp->dev, pd->phy_node, mv643xx_eth_adjust_link, 0, get_phy_mode(mp)); if (!phydev) err = -ENODEV; else phy_addr_set(mp, phydev->mdio.addr); } else if (pd->phy_addr != MV643XX_ETH_PHY_NONE) { phydev = phy_scan(mp, pd->phy_addr); if (IS_ERR(phydev)) err = PTR_ERR(phydev); else phy_init(mp, pd->speed, pd->duplex); } if (err == -ENODEV) { err = -EPROBE_DEFER; goto out; } if (err) goto out; dev->ethtool_ops = &mv643xx_eth_ethtool_ops; init_pscr(mp, pd->speed, pd->duplex); mib_counters_clear(mp); setup_timer(&mp->mib_counters_timer, mib_counters_timer_wrapper, (unsigned long)mp); mp->mib_counters_timer.expires = jiffies + 30 * HZ; spin_lock_init(&mp->mib_counters_lock); INIT_WORK(&mp->tx_timeout_task, tx_timeout_task); netif_napi_add(dev, &mp->napi, mv643xx_eth_poll, NAPI_POLL_WEIGHT); setup_timer(&mp->rx_oom, oom_timer_wrapper, (unsigned long)mp); res = platform_get_resource(pdev, IORESOURCE_IRQ, 0); BUG_ON(!res); dev->irq = res->start; dev->netdev_ops = &mv643xx_eth_netdev_ops; dev->watchdog_timeo = 2 * HZ; dev->base_addr = 0; dev->features = NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO; dev->vlan_features = dev->features; dev->features |= NETIF_F_RXCSUM; dev->hw_features = dev->features; dev->priv_flags |= IFF_UNICAST_FLT; dev->gso_max_segs = MV643XX_MAX_TSO_SEGS; /* MTU range: 64 - 9500 */ dev->min_mtu = 64; dev->max_mtu = 9500; if (mp->shared->win_protect) wrl(mp, WINDOW_PROTECT(mp->port_num), mp->shared->win_protect); netif_carrier_off(dev); wrlp(mp, SDMA_CONFIG, PORT_SDMA_CONFIG_DEFAULT_VALUE); set_rx_coal(mp, 250); set_tx_coal(mp, 0); err = register_netdev(dev); if (err) goto out; netdev_notice(dev, "port %d with MAC address %pM\n", mp->port_num, dev->dev_addr); if (mp->tx_desc_sram_size > 0) netdev_notice(dev, "configured with sram\n"); return 0; out: if (!IS_ERR(mp->clk)) clk_disable_unprepare(mp->clk); free_netdev(dev); return err; }

Contributors

PersonTokensPropCommitsCommitProp
Lennert Buytenhek41552.87%1635.56%
Sebastian Hesselbarth12315.67%48.89%
Andrew Lunn526.62%48.89%
Simon Baatz435.48%24.44%
Jason Gunthorpe222.80%24.44%
Ezequiel García222.80%36.67%
Dale Farnsworth202.55%12.22%
Ben Hutchings131.66%12.22%
Jarod Wilson131.66%12.22%
Philippe Reynes131.66%12.22%
Vaishali Thakkar101.27%12.22%
James Chapman101.27%12.22%
Michał Mirosław81.02%12.22%
Jiri Pirko60.76%12.22%
Jingoo Han40.51%12.22%
Joe Perches40.51%12.22%
Wilfried Klaebe30.38%12.22%
Ralf Bächle20.25%12.22%
Johannes Berg10.13%12.22%
Dan Carpenter10.13%12.22%
Total785100.00%45100.00%


static int mv643xx_eth_remove(struct platform_device *pdev) { struct mv643xx_eth_private *mp = platform_get_drvdata(pdev); struct net_device *dev = mp->dev; unregister_netdev(mp->dev); if (dev->phydev) phy_disconnect(dev->phydev); cancel_work_sync(&mp->tx_timeout_task); if (!IS_ERR(mp->clk)) clk_disable_unprepare(mp->clk); free_netdev(mp->dev); return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Lennert Buytenhek3136.47%337.50%
Andrew Lunn1720.00%112.50%
James Chapman1618.82%112.50%
Philippe Reynes1315.29%112.50%
Tejun Heo78.24%112.50%
Sebastian Hesselbarth11.18%112.50%
Total85100.00%8100.00%


static void mv643xx_eth_shutdown(struct platform_device *pdev) { struct mv643xx_eth_private *mp = platform_get_drvdata(pdev); /* Mask all interrupts on ethernet port */ wrlp(mp, INT_MASK, 0); rdlp(mp, INT_MASK); if (netif_running(mp->dev)) port_reset(mp); }

Contributors

PersonTokensPropCommitsCommitProp
Lennert Buytenhek3567.31%685.71%
James Chapman1732.69%114.29%
Total52100.00%7100.00%

static struct platform_driver mv643xx_eth_driver = { .probe = mv643xx_eth_probe, .remove = mv643xx_eth_remove, .shutdown = mv643xx_eth_shutdown, .driver = { .name = MV643XX_ETH_NAME, }, }; static struct platform_driver * const drivers[] = { &mv643xx_eth_shared_driver, &mv643xx_eth_driver, };
static int __init mv643xx_eth_init_module(void) { return platform_register_drivers(drivers, ARRAY_SIZE(drivers)); }

Contributors

PersonTokensPropCommitsCommitProp
Lennert Buytenhek1470.00%266.67%
Thierry Reding630.00%133.33%
Total20100.00%3100.00%

module_init(mv643xx_eth_init_module);
static void __exit mv643xx_eth_cleanup_module(void) { platform_unregister_drivers(drivers, ARRAY_SIZE(drivers)); }

Contributors

PersonTokensPropCommitsCommitProp
Lennert Buytenhek1368.42%266.67%
Thierry Reding631.58%133.33%
Total19100.00%3100.00%

module_exit(mv643xx_eth_cleanup_module); MODULE_AUTHOR("Rabeeh Khoury, Assaf Hoffman, Matthew Dharm, " "Manish Lachwani, Dale Farnsworth and Lennert Buytenhek"); MODULE_DESCRIPTION("Ethernet driver for Marvell MV643XX"); MODULE_LICENSE("GPL"); MODULE_ALIAS("platform:" MV643XX_ETH_SHARED_NAME); MODULE_ALIAS("platform:" MV643XX_ETH_NAME);

Overall Contributors

PersonTokensPropCommitsCommitProp
Lennert Buytenhek961965.08%8839.46%
Ezequiel García14629.89%104.48%
Sebastian Hesselbarth10286.96%135.83%
Ralf Bächle3692.50%20.90%
Dale Farnsworth3572.42%2611.66%
Philippe Reynes2731.85%20.90%
Phil Sutter1601.08%10.45%
Florian Fainelli1460.99%31.35%
Philipp Kirchhofer1270.86%20.90%
Joe Perches1220.83%41.79%
James Chapman1200.81%20.90%
Michael Stapelberg1030.70%10.45%
Andrew Lunn920.62%52.24%
Saeed Bishara870.59%31.35%
Jason Gunthorpe850.58%20.90%
Gabriel Paubert820.55%20.90%
Paulius Zaleckas620.42%10.45%
Karl Beldan530.36%10.45%
Simon Baatz480.32%20.90%
Jonas Gorski430.29%10.45%
Jiri Pirko300.20%52.24%
Thierry Reding280.19%10.45%
Michał Mirosław270.18%31.35%
Rick Jones240.16%10.45%
Russell King210.14%31.35%
Richard Cochran190.13%31.35%
Denis Kirjanov190.13%31.35%
Paul Janzen180.12%10.45%
Ben Hutchings140.09%20.90%
Jarod Wilson130.09%10.45%
Sebastian Andrzej Siewior110.07%20.90%
Christoph Hellwig110.07%10.45%
Stephen Hemminger100.07%10.45%
Eric Dumazet100.07%20.90%
Vaishali Thakkar100.07%10.45%
Arnd Bergmann90.06%10.45%
Tejun Heo80.05%20.90%
Jingoo Han80.05%10.45%
Dan Carpenter70.05%20.90%
Julia Lawall70.05%10.45%
Prabhanjan Sarnaik60.04%10.45%
Pradeep A. Dalvi50.03%10.45%
David S. Miller40.03%10.45%
Axel Lin40.03%10.45%
Al Viro40.03%20.90%
Isaku Yamahata30.02%10.45%
Wilfried Klaebe30.02%10.45%
Nicolas DET20.01%10.45%
Nicolas Schichan20.01%10.45%
Sudip Mukherjee10.01%10.45%
Lubomir Rintel10.01%10.45%
Jeff Kirsher10.01%10.45%
Johannes Berg10.01%10.45%
Danny Kukawka10.01%10.45%
Total14780100.00%223100.00%
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