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Commit 1f1c2881 authored by Linus Torvalds's avatar Linus Torvalds
Browse files

Merge branch 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/netdev-2.6 

* 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/netdev-2.6: (37 commits)
  forcedeth bug fix: realtek phy
  forcedeth bug fix: vitesse phy
  forcedeth bug fix: cicada phy
  atl1: reorder atl1_main functions
  atl1: fix excessively indented code
  atl1: cleanup atl1_main
  atl1: header file cleanup
  atl1: remove irq_sem
  cdc-subset to support new vendor/product ID
  8139cp: implement the missing dev->tx_timeout
  myri10ge: Remove nonsensical limit in the tx done routine
  gianfar: kill unused header
  EP93XX_ETH must select MII
  macb: Add multicast capability
  macb: Use generic PHY layer
  s390: add barriers to qeth driver
  s390: scatter-gather for inbound traffic in qeth driver
  eHEA: Introducing support vor DLPAR memory add
  Fix a potential NULL pointer dereference in free_shared_mem() in drivers/net/s2io.c
  [PATCH] softmac: Fix ESSID problem
  ...
parents 7608a864 c5e3ae88

drivers/net/8139cp.c

+24 −3
Original line number Diff line number Diff line
@@ -26,7 +26,6 @@ 


	TODO:

	* Test Tx checksumming thoroughly

	* Implement dev->tx_timeout



	Low priority TODO:

	* Complete reset on PciErr
@@ -1218,6 +1217,30 @@ static int cp_close (struct net_device *dev) 
	return 0;

}



static void cp_tx_timeout(struct net_device *dev)

{

	struct cp_private *cp = netdev_priv(dev);

	unsigned long flags;

	int rc;



	printk(KERN_WARNING "%s: Transmit timeout, status %2x %4x %4x %4x\n",

	       dev->name, cpr8(Cmd), cpr16(CpCmd),

	       cpr16(IntrStatus), cpr16(IntrMask));



	spin_lock_irqsave(&cp->lock, flags);



	cp_stop_hw(cp);

	cp_clean_rings(cp);

	rc = cp_init_rings(cp);

	cp_start_hw(cp);



	netif_wake_queue(dev);



	spin_unlock_irqrestore(&cp->lock, flags);



	return;

}



#ifdef BROKEN

static int cp_change_mtu(struct net_device *dev, int new_mtu)

{
@@ -1920,10 +1943,8 @@ static int cp_init_one (struct pci_dev *pdev, const struct pci_device_id *ent) 
	dev->change_mtu = cp_change_mtu;

#endif

	dev->ethtool_ops = &cp_ethtool_ops;

#if 0

	dev->tx_timeout = cp_tx_timeout;

	dev->watchdog_timeo = TX_TIMEOUT;

#endif



#if CP_VLAN_TAG_USED

	dev->features |= NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX;

drivers/net/Kconfig

+1 −1
Original line number Diff line number Diff line
@@ -205,7 +205,7 @@ config MII 
config MACB

	tristate "Atmel MACB support"

	depends on AVR32 || ARCH_AT91SAM9260 || ARCH_AT91SAM9263

	select MII

	select PHYLIB

	help

	  The Atmel MACB ethernet interface is found on many AT32 and AT91

	  parts. Say Y to include support for the MACB chip.

drivers/net/arm/Kconfig

+1 −0
Original line number Diff line number Diff line
@@ -43,6 +43,7 @@ config ARM_AT91_ETHER 
config EP93XX_ETH

	tristate "EP93xx Ethernet support"

	depends on ARM && ARCH_EP93XX

	select MII

	help

	  This is a driver for the ethernet hardware included in EP93xx CPUs.

	  Say Y if you are building a kernel for EP93xx based devices.

drivers/net/atl1/atl1.h

+80 −76
Original line number Diff line number Diff line
@@ -43,6 +43,7 @@ extern const struct ethtool_ops atl1_ethtool_ops; 
struct atl1_adapter;



#define ATL1_MAX_INTR		3

#define ATL1_MAX_TX_BUF_LEN	0x3000	/* 12288 bytes */



#define ATL1_DEFAULT_TPD	256

#define ATL1_MAX_TPD		1024
@@ -57,29 +58,45 @@ struct atl1_adapter; 
#define ATL1_RRD_DESC(R, i)	ATL1_GET_DESC(R, i, struct rx_return_desc)



/*

 * This detached comment is preserved for documentation purposes only.

 * It was originally attached to some code that got deleted, but seems

 * important enough to keep around...

 *

 * <begin detached comment>

 * Some workarounds require millisecond delays and are run during interrupt

 * context.  Most notably, when establishing link, the phy may need tweaking

 * but cannot process phy register reads/writes faster than millisecond

 * intervals...and we establish link due to a "link status change" interrupt.

 * <end detached comment>

 */



/*

 * atl1_ring_header represents a single, contiguous block of DMA space

 * mapped for the three descriptor rings (tpd, rfd, rrd) and the two

 * message blocks (cmb, smb) described below

 */

struct atl1_ring_header {

	void *desc;		/* virtual address */

	dma_addr_t dma;		/* physical address*/

	unsigned int size;	/* length in bytes */

};



/*

 * wrapper around a pointer to a socket buffer,

 * so a DMA handle can be stored along with the buffer

 * atl1_buffer is wrapper around a pointer to a socket buffer

 * so a DMA handle can be stored along with the skb

 */

struct atl1_buffer {

	struct sk_buff *skb;

	u16 length;

	u16 alloced;

	struct sk_buff *skb;	/* socket buffer */

	u16 length;		/* rx buffer length */

	u16 alloced;		/* 1 if skb allocated */

	dma_addr_t dma;

};



#define MAX_TX_BUF_LEN		0x3000	/* 12KB */



/* transmit packet descriptor (tpd) ring */

struct atl1_tpd_ring {

	void *desc;		/* pointer to the descriptor ring memory */

	dma_addr_t dma;		/* physical adress of the descriptor ring */

	u16 size;		/* length of descriptor ring in bytes */

	void *desc;		/* descriptor ring virtual address */

	dma_addr_t dma;		/* descriptor ring physical address */

	u16 size;		/* descriptor ring length in bytes */

	u16 count;		/* number of descriptors in the ring */

	u16 hw_idx;		/* hardware index */

	atomic_t next_to_clean;
@@ -87,36 +104,34 @@ struct atl1_tpd_ring { 
	struct atl1_buffer *buffer_info;

};



/* receive free descriptor (rfd) ring */

struct atl1_rfd_ring {

	void *desc;

	dma_addr_t dma;

	u16 size;

	u16 count;

	void *desc;		/* descriptor ring virtual address */

	dma_addr_t dma;		/* descriptor ring physical address */

	u16 size;		/* descriptor ring length in bytes */

	u16 count;		/* number of descriptors in the ring */

	atomic_t next_to_use;

	u16 next_to_clean;

	struct atl1_buffer *buffer_info;

};



/* receive return descriptor (rrd) ring */

struct atl1_rrd_ring {

	void *desc;

	dma_addr_t dma;

	unsigned int size;

	u16 count;

	void *desc;		/* descriptor ring virtual address */

	dma_addr_t dma;		/* descriptor ring physical address */

	unsigned int size;	/* descriptor ring length in bytes */

	u16 count;		/* number of descriptors in the ring */

	u16 next_to_use;

	atomic_t next_to_clean;

};



struct atl1_ring_header {

	void *desc;		/* pointer to the descriptor ring memory */

	dma_addr_t dma;		/* physical adress of the descriptor ring */

	unsigned int size;	/* length of descriptor ring in bytes */

};



/* coalescing message block (cmb) */

struct atl1_cmb {

	struct coals_msg_block *cmb;

	dma_addr_t dma;

};



/* statistics message block (smb) */

struct atl1_smb {

	struct stats_msg_block *smb;

	dma_addr_t dma;
@@ -141,24 +156,26 @@ struct atl1_sft_stats { 
	u64 tx_aborted_errors;

	u64 tx_window_errors;

	u64 tx_carrier_errors;



	u64 tx_pause;		/* num Pause packet transmitted. */

	u64 excecol;		/* num tx packets aborted due to excessive collisions. */

	u64 deffer;		/* num deferred tx packets */

	u64 scc;		/* num packets subsequently transmitted successfully w/ single prior collision. */

	u64 mcc;		/* num packets subsequently transmitted successfully w/ multiple prior collisions. */

	u64 tx_pause;		/* num pause packets transmitted. */

	u64 excecol;		/* num tx packets w/ excessive collisions. */

	u64 deffer;		/* num tx packets deferred */

	u64 scc;		/* num packets subsequently transmitted

				 * successfully w/ single prior collision. */

	u64 mcc;		/* num packets subsequently transmitted

				 * successfully w/ multiple prior collisions. */

	u64 latecol;		/* num tx packets  w/ late collisions. */

	u64 tx_underun;		/* num tx packets aborted due to transmit FIFO underrun, or TRD FIFO underrun */

	u64 tx_trunc;		/* num tx packets truncated due to size exceeding MTU, regardless whether truncated by Selene or not. (The name doesn't really reflect the meaning in this case.) */

	u64 tx_underun;		/* num tx packets aborted due to transmit

				 * FIFO underrun, or TRD FIFO underrun */

	u64 tx_trunc;		/* num tx packets truncated due to size

				 * exceeding MTU, regardless whether truncated

				 * by the chip or not. (The name doesn't really

				 * reflect the meaning in this case.) */

	u64 rx_pause;		/* num Pause packets received. */

	u64 rx_rrd_ov;

	u64 rx_trunc;

};



/* board specific private data structure */

#define ATL1_REGS_LEN	8



/* Structure containing variables used by the shared code */

/* hardware structure */

struct atl1_hw {

	u8 __iomem *hw_addr;

	struct atl1_adapter *back;
@@ -167,24 +184,35 @@ struct atl1_hw { 
	enum atl1_dma_req_block dmar_block;

	enum atl1_dma_req_block dmaw_block;

	u8 preamble_len;

	u8 max_retry;		/* Retransmission maximum, after which the packet will be discarded */

	u8 jam_ipg;		/* IPG to start JAM for collision based flow control in half-duplex mode. In units of 8-bit time */

	u8 ipgt;		/* Desired back to back inter-packet gap. The default is 96-bit time */

	u8 min_ifg;		/* Minimum number of IFG to enforce in between RX frames. Frame gap below such IFP is dropped */

	u8 max_retry;		/* Retransmission maximum, after which the

				 * packet will be discarded */

	u8 jam_ipg;		/* IPG to start JAM for collision based flow

				 * control in half-duplex mode. In units of

				 * 8-bit time */

	u8 ipgt;		/* Desired back to back inter-packet gap.

				 * The default is 96-bit time */

	u8 min_ifg;		/* Minimum number of IFG to enforce in between

				 * receive frames. Frame gap below such IFP

				 * is dropped */

	u8 ipgr1;		/* 64bit Carrier-Sense window */

	u8 ipgr2;		/* 96-bit IPG window */

	u8 tpd_burst;		/* Number of TPD to prefetch in cache-aligned burst. Each TPD is 16 bytes long */

	u8 rfd_burst;		/* Number of RFD to prefetch in cache-aligned burst. Each RFD is 12 bytes long */

	u8 tpd_burst;		/* Number of TPD to prefetch in cache-aligned

				 * burst. Each TPD is 16 bytes long */

	u8 rfd_burst;		/* Number of RFD to prefetch in cache-aligned

				 * burst. Each RFD is 12 bytes long */

	u8 rfd_fetch_gap;

	u8 rrd_burst;		/* Threshold number of RRDs that can be retired in a burst. Each RRD is 16 bytes long */

	u8 rrd_burst;		/* Threshold number of RRDs that can be retired

				 * in a burst. Each RRD is 16 bytes long */

	u8 tpd_fetch_th;

	u8 tpd_fetch_gap;

	u16 tx_jumbo_task_th;

	u16 txf_burst;		/* Number of data bytes to read in a cache-aligned burst. Each SRAM entry is

				   8 bytes long */

	u16 rx_jumbo_th;	/* Jumbo packet size for non-VLAN packet. VLAN packets should add 4 bytes */

	u16 txf_burst;		/* Number of data bytes to read in a cache-

				 * aligned burst. Each SRAM entry is 8 bytes */

	u16 rx_jumbo_th;	/* Jumbo packet size for non-VLAN packet. VLAN

				 * packets should add 4 bytes */

	u16 rx_jumbo_lkah;

	u16 rrd_ret_timer;	/* RRD retirement timer. Decrement by 1 after every 512ns passes. */

	u16 rrd_ret_timer;	/* RRD retirement timer. Decrement by 1 after

				 * every 512ns passes. */

	u16 lcol;		/* Collision Window */



	u16 cmb_tpd;
@@ -194,48 +222,35 @@ struct atl1_hw { 
	u32 smb_timer;

	u16 media_type;

	u16 autoneg_advertised;

	u16 pci_cmd_word;



	u16 mii_autoneg_adv_reg;

	u16 mii_1000t_ctrl_reg;



	u32 mem_rang;

	u32 txcw;

	u32 max_frame_size;

	u32 min_frame_size;

	u32 mc_filter_type;

	u32 num_mc_addrs;

	u32 collision_delta;

	u32 tx_packet_delta;

	u16 phy_spd_default;



	u16 dev_rev;



	/* spi flash */

	u8 flash_vendor;



	u8 dma_fairness;

	u8 mac_addr[ETH_ALEN];

	u8 perm_mac_addr[ETH_ALEN];



	/* bool phy_preamble_sup; */

	bool phy_configured;

};



struct atl1_adapter {

	/* OS defined structs */

	struct net_device *netdev;

	struct pci_dev *pdev;

	struct net_device_stats net_stats;

	struct atl1_sft_stats soft_stats;



	struct vlan_group *vlgrp;

	u32 rx_buffer_len;

	u32 wol;

	u16 link_speed;

	u16 link_duplex;

	spinlock_t lock;

	atomic_t irq_sem;

	struct work_struct tx_timeout_task;

	struct work_struct link_chg_task;

	struct work_struct pcie_dma_to_rst_task;
@@ -243,9 +258,7 @@ struct atl1_adapter { 
	struct timer_list phy_config_timer;

	bool phy_timer_pending;



	bool mac_disabled;



	/* All descriptor rings' memory */

	/* all descriptor rings' memory */

	struct atl1_ring_header ring_header;



	/* TX */
@@ -258,16 +271,9 @@ struct atl1_adapter { 
	u64 hw_csum_err;

	u64 hw_csum_good;



	u32 gorcl;

	u64 gorcl_old;



	/* Interrupt Moderator timer ( 2us resolution) */

	u16 imt;

	/* Interrupt Clear timer (2us resolution) */

	u16 ict;



	/* MII interface info */

	struct mii_if_info mii;

	u16 imt;	/* interrupt moderator timer (2us resolution */

	u16 ict;	/* interrupt clear timer (2us resolution */

	struct mii_if_info mii;		/* MII interface info */



	/* structs defined in atl1_hw.h */

	u32 bd_number;			/* board number */
@@ -275,8 +281,6 @@ struct atl1_adapter { 
	struct atl1_hw hw;

	struct atl1_smb smb;

	struct atl1_cmb cmb;



	u32 pci_state[16];

};



#endif	/* _ATL1_H_ */

drivers/net/atl1/atl1_main.c

+1331 −1323

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