Current tc35815 driver is very obsolete and less maintained for a long
time. Replace it with a new driver based on one from CELF patch
archive.
Major advantages of CELF version (version 1.23, for kernel 2.6.10) are:
* Independent of JMR3927.
(Actually independent of MIPS, but AFAIK the chip is used only on
MIPS platforms)
* TX4938 support.
* 64-bit proof.
* Asynchronous and on-demand auto negotiation.
* High performance on non-coherent architecture.
* ethtool support.
* Many bugfixes and cleanups.
And improvoments since version 1.23 are:
* TX4939 support.
* NETPOLL support.
* NAPI support. (disabled by default)
* Reduce memcpy on receiving.
* PM support.
* Many cleanups and bugfixes.
Signed-off-by: Atsushi Nemoto <anemo@xxxxxxxxxxxxx>
drivers/net/Kconfig | 3
drivers/net/tc35815.c | 2587 ++++++++++++++++++++++++++++++++++------------
include/linux/pci_ids.h | 2
3 files changed, 1917 insertions(+), 675 deletions(-)
diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig
index 5ff0922..52d7239 100644
--- a/drivers/net/Kconfig
+++ b/drivers/net/Kconfig
@@ -1444,7 +1444,8 @@ config CS89x0
config TC35815
tristate "TOSHIBA TC35815 Ethernet support"
- depends on NET_PCI && PCI && TOSHIBA_JMR3927
+ depends on NET_PCI && PCI && MIPS
+ select MII
config DGRS
tristate "Digi Intl. RightSwitch SE-X support"
diff --git a/drivers/net/tc35815.c b/drivers/net/tc35815.c
index e3a7e3c..ec888db 100644
--- a/drivers/net/tc35815.c
+++ b/drivers/net/tc35815.c
@@ -1,35 +1,72 @@
-/* tc35815.c: A TOSHIBA TC35815CF PCI 10/100Mbps ethernet driver for linux.
- *
- * Copyright 2001 MontaVista Software Inc.
- * Author: MontaVista Software, Inc.
- * ahennessy@xxxxxxxxxx
+/*
+ * tc35815.c: A TOSHIBA TC35815CF PCI 10/100Mbps ethernet driver for linux.
*
* Based on skelton.c by Donald Becker.
- * Copyright (C) 2000-2001 Toshiba Corporation
*
- * 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 driver is a replacement of older and less maintained version.
+ * This is a header of the older version:
+ * -----<snip>-----
+ * Copyright 2001 MontaVista Software Inc.
+ * Author: MontaVista Software, Inc.
+ * ahennessy@xxxxxxxxxx
+ * Copyright (C) 2000-2001 Toshiba Corporation
+ * static const char *version =
+ * "tc35815.c:v0.00 26/07/2000 by Toshiba Corporation\n";
+ * -----<snip>-----
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
*
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
- * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
- * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
- * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ * (C) Copyright TOSHIBA CORPORATION 2004-2005
+ * All Rights Reserved.
*
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 675 Mass Ave, Cambridge, MA 02139, USA.
+ * Revision History:
+ * 1.13 64-bit proof.
+ * 1.14 Do not round-up transmit length.
+ * 1.15 Define TC35815_DMA_SYNC_ONDEMAND, cleanup.
+ * 1.16 Fix free_page bug introduced in 1.15
+ * 1.17 Add mii/ethtool ioctl support.
+ * Remove workaround for early TX4938. Cleanup.
+ * 1.20 Kernel 2.6.
+ * 1.21 Fix receive packet length (omit CRC).
+ * Call netif_carrier_on/netif_carrier_off.
+ * Add kernel/module options (speed, duplex, doforce).
+ * Do not try "force link mode" by default.
+ * Reconfigure CAM on restarting.
+ * Reset PHY on restarting.
+ * Add workaround for 100MHalf HUB.
+ * 1.22 Minor fix.
+ * 1.23 Minor cleanup.
+ * 1.24 Remove tc35815_setup since new stype option
+ * ("tc35815.speed=10", etc.) can be used for 2.6 kernel.
+ * 1.25 TX4939 support.
+ * 1.26 Minor cleanup.
+ * 1.27 Move TX4939 PCFG.SPEEDn control code out from this driver.
+ * Cleanup init_dev_addr. (NETDEV_REGISTER event notifier
+ * can overwrite dev_addr)
+ * support ETHTOOL_GPERMADDR.
+ * 1.28 Minor cleanup.
+ * 1.29 support netpoll.
+ * 1.30 Minor cleanup.
+ * 1.31 NAPI support. (disabled by default)
+ * Use DMA_RxAlign_2 if possible.
+ * Do not use PackedBuffer.
+ * Cleanup.
+ * 1.32 Fix free buffer management on non-PackedBuffer mode.
+ * 1.33 Fix netpoll build.
+ * 1.34 Fix netpoll locking. "BH rule" for NAPI is not enough with
+ * netpoll, hard_start_xmit might be called from irq context.
+ * PM support.
*/
-static const char *version =
- "tc35815.c:v0.00 26/07/2000 by Toshiba Corporation\n";
+#ifdef TC35815_NAPI
+#define DRV_VERSION "1.34-NAPI"
+#else
+#define DRV_VERSION "1.34"
+#endif
+static const char *version = "tc35815.c:v" DRV_VERSION "\n";
+#define MODNAME "tc35815"
#include <linux/module.h>
#include <linux/kernel.h>
@@ -40,6 +77,7 @@ static const char *version =
#include <linux/in.h>
#include <linux/slab.h>
#include <linux/string.h>
+#include <linux/spinlock.h>
#include <linux/errno.h>
#include <linux/init.h>
#include <linux/netdevice.h>
@@ -47,36 +85,47 @@ static const char *version =
#include <linux/skbuff.h>
#include <linux/delay.h>
#include <linux/pci.h>
-#include <linux/proc_fs.h>
-#include <linux/spinlock.h>
-#include <linux/bitops.h>
-
-#include <asm/system.h>
+#include <linux/mii.h>
+#include <linux/ethtool.h>
#include <asm/io.h>
-#include <asm/dma.h>
#include <asm/byteorder.h>
-/*
- * The name of the card. Is used for messages and in the requests for
- * io regions, irqs and dma channels
- */
-static const char* cardname = "TC35815CF";
-#define TC35815_PROC_ENTRY "net/tc35815"
-
-#define TC35815_MODULE_NAME "TC35815CF"
-#define TX_TIMEOUT (4*HZ)
-
/* First, a few definitions that the brave might change. */
-/* use 0 for production, 1 for verification, >2 for debug */
-#ifndef TC35815_DEBUG
-#define TC35815_DEBUG 1
-#endif
-static unsigned int tc35815_debug = TC35815_DEBUG;
-
#define GATHER_TXINT /* On-Demand Tx Interrupt */
+#define WORKAROUND_LOSTCAR
+#define WORKAROUND_100HALF_PROMISC
+/* #define TC35815_USE_PACKEDBUFFER */
+
+typedef enum {
+ TC35815CF = 0,
+ TC35815_NWU,
+ TC35815_TX4939,
+} board_t;
+
+/* indexed by board_t, above */
+static const struct {
+ const char *name;
+} board_info[] __devinitdata = {
+ { "TOSHIBA TC35815CF 10/100BaseTX" },
+ { "TOSHIBA TC35815 with Wake on LAN" },
+ { "TOSHIBA TC35815/TX4939" },
+};
+
+static const struct pci_device_id tc35815_pci_tbl[] = {
+ {PCI_DEVICE(PCI_VENDOR_ID_TOSHIBA_2, PCI_DEVICE_ID_TOSHIBA_TC35815CF), .driver_data = TC35815CF },
+ {PCI_DEVICE(PCI_VENDOR_ID_TOSHIBA_2, PCI_DEVICE_ID_TOSHIBA_TC35815_NWU), .driver_data = TC35815_NWU },
+ {PCI_DEVICE(PCI_VENDOR_ID_TOSHIBA_2, PCI_DEVICE_ID_TOSHIBA_TC35815_TX4939), .driver_data = TC35815_TX4939 },
+ {0,}
+};
+MODULE_DEVICE_TABLE (pci, tc35815_pci_tbl);
-#define vtonocache(p) KSEG1ADDR(virt_to_phys(p))
+/* see MODULE_PARM_DESC */
+static struct tc35815_options {
+ int speed;
+ int duplex;
+ int doforce;
+} options;
/*
* Registers
@@ -119,6 +168,11 @@ struct tc35815_regs {
* Bit assignments
*/
/* DMA_Ctl bit asign ------------------------------------------------------- */
+#define DMA_RxAlign 0x00c00000 /* 1:Reception Alignment */
+#define DMA_RxAlign_1 0x00400000
+#define DMA_RxAlign_2 0x00800000
+#define DMA_RxAlign_3 0x00c00000
+#define DMA_M66EnStat 0x00080000 /* 1:66MHz Enable State */
#define DMA_IntMask 0x00040000 /* 1:Interupt mask */
#define DMA_SWIntReq 0x00020000 /* 1:Software Interrupt request */
#define DMA_TxWakeUp 0x00010000 /* 1:Transmit Wake Up */
@@ -269,42 +323,6 @@ struct tc35815_regs {
#define MD_CA_Wr 0x00000400 /* 1:Write 0:Read */
-/* MII register offsets */
-#define MII_CONTROL 0x0000
-#define MII_STATUS 0x0001
-#define MII_PHY_ID0 0x0002
-#define MII_PHY_ID1 0x0003
-#define MII_ANAR 0x0004
-#define MII_ANLPAR 0x0005
-#define MII_ANER 0x0006
-/* MII Control register bit definitions. */
-#define MIICNTL_FDX 0x0100
-#define MIICNTL_RST_AUTO 0x0200
-#define MIICNTL_ISOLATE 0x0400
-#define MIICNTL_PWRDWN 0x0800
-#define MIICNTL_AUTO 0x1000
-#define MIICNTL_SPEED 0x2000
-#define MIICNTL_LPBK 0x4000
-#define MIICNTL_RESET 0x8000
-/* MII Status register bit significance. */
-#define MIISTAT_EXT 0x0001
-#define MIISTAT_JAB 0x0002
-#define MIISTAT_LINK 0x0004
-#define MIISTAT_CAN_AUTO 0x0008
-#define MIISTAT_FAULT 0x0010
-#define MIISTAT_AUTO_DONE 0x0020
-#define MIISTAT_CAN_T 0x0800
-#define MIISTAT_CAN_T_FDX 0x1000
-#define MIISTAT_CAN_TX 0x2000
-#define MIISTAT_CAN_TX_FDX 0x4000
-#define MIISTAT_CAN_T4 0x8000
-/* MII Auto-Negotiation Expansion/RemoteEnd Register Bits */
-#define MII_AN_TX_FDX 0x0100
-#define MII_AN_TX_HDX 0x0080
-#define MII_AN_10_FDX 0x0040
-#define MII_AN_10_HDX 0x0020
-
-
/*
* Descriptors
*/
@@ -352,32 +370,51 @@ struct BDesc {
#ifdef NO_CHECK_CARRIER
#define TX_CTL_CMD (Tx_EnComp | Tx_EnTxPar | Tx_EnLateColl | \
- Tx_EnExColl | Tx_EnLCarr | Tx_EnExDefer | Tx_EnUnder | \
- Tx_En) /* maybe 0x7d01 */
+ Tx_EnExColl | Tx_EnExDefer | Tx_EnUnder | \
+ Tx_En) /* maybe 0x7b01 */
#else
#define TX_CTL_CMD (Tx_EnComp | Tx_EnTxPar | Tx_EnLateColl | \
- Tx_EnExColl | Tx_EnExDefer | Tx_EnUnder | \
- Tx_En) /* maybe 0x7f01 */
+ Tx_EnExColl | Tx_EnLCarr | Tx_EnExDefer | Tx_EnUnder | \
+ Tx_En) /* maybe 0x7b01 */
#endif
#define RX_CTL_CMD (Rx_EnGood | Rx_EnRxPar | Rx_EnLongErr | Rx_EnOver \
| Rx_EnCRCErr | Rx_EnAlign | Rx_RxEn) /* maybe 0x6f01 */
-
#define INT_EN_CMD (Int_NRAbtEn | \
- Int_DParDEn | Int_DParErrEn | \
+ Int_DmParErrEn | Int_DParDEn | Int_DParErrEn | \
Int_SSysErrEn | Int_RMasAbtEn | Int_RTargAbtEn | \
Int_STargAbtEn | \
Int_BLExEn | Int_FDAExEn) /* maybe 0xb7f*/
+#define DMA_CTL_CMD DMA_BURST_SIZE
+#define HAVE_DMA_RXALIGN(lp) likely((lp)->boardtype != TC35815CF)
/* Tuning parameters */
#define DMA_BURST_SIZE 32
#define TX_THRESHOLD 1024
+#define TX_THRESHOLD_MAX 1536 /* used threshold with packet max byte for low pci transfer ability.*/
+#define TX_THRESHOLD_KEEP_LIMIT 10 /* setting threshold max value when overrun error occured this count. */
+/* 16 + RX_BUF_NUM * 8 + RX_FD_NUM * 16 + TX_FD_NUM * 32 <= PAGE_SIZE*FD_PAGE_NUM */
+#ifdef TC35815_USE_PACKEDBUFFER
#define FD_PAGE_NUM 2
-#define FD_PAGE_ORDER 1
-/* 16 + RX_BUF_PAGES * 8 + RX_FD_NUM * 16 + TX_FD_NUM * 32 <= PAGE_SIZE*2 */
-#define RX_BUF_PAGES 8 /* >= 2 */
+#define RX_BUF_NUM 8 /* >= 2 */
#define RX_FD_NUM 250 /* >= 32 */
#define TX_FD_NUM 128
+#define RX_BUF_SIZE PAGE_SIZE
+#else /* TC35815_USE_PACKEDBUFFER */
+#define FD_PAGE_NUM 4
+#define RX_BUF_NUM 128 /* < 256 */
+#define RX_FD_NUM 256 /* >= 32 */
+#define TX_FD_NUM 128
+#if RX_CTL_CMD & Rx_LongEn
+#define RX_BUF_SIZE PAGE_SIZE
+#elif RX_CTL_CMD & Rx_StripCRC
+#define RX_BUF_SIZE ALIGN(ETH_FRAME_LEN + 4 + 2, 32) /* +2: reserve */
+#else
+#define RX_BUF_SIZE ALIGN(ETH_FRAME_LEN + 2, 32) /* +2: reserve */
+#endif
+#endif /* TC35815_USE_PACKEDBUFFER */
+#define RX_FD_RESERVE (2 / 2) /* max 2 BD per RxFD */
+#define NAPI_WEIGHT 16
struct TxFD {
struct FDesc fd;
@@ -392,18 +429,27 @@ struct RxFD {
struct FrFD {
struct FDesc fd;
- struct BDesc bd[RX_BUF_PAGES];
+ struct BDesc bd[RX_BUF_NUM];
};
-extern unsigned long tc_readl(volatile __u32 *addr);
-extern void tc_writel(unsigned long data, volatile __u32 *addr);
+#define tc_readl(addr) readl(addr)
+#define tc_writel(d, addr) writel(d, addr)
-dma_addr_t priv_dma_handle;
+#define TC35815_TX_TIMEOUT msecs_to_jiffies(400)
+
+/* Timer state engine. */
+enum tc35815_timer_state {
+ arbwait = 0, /* Waiting for auto negotiation to complete. */
+ lupwait = 1, /* Auto-neg complete, awaiting link-up status. */
+ ltrywait = 2, /* Forcing try of all modes, from fastest to slowest. */
+ asleep = 3, /* Time inactive. */
+ lcheck = 4, /* Check link status. */
+};
/* Information that need to be kept for each board. */
struct tc35815_local {
- struct net_device *next_module;
+ struct pci_dev *pci_dev;
/* statistics */
struct net_device_stats stats;
@@ -411,216 +457,372 @@ struct tc35815_local {
int max_tx_qlen;
int tx_ints;
int rx_ints;
+ int tx_underrun;
} lstats;
- int tbusy;
- int option;
-#define TC35815_OPT_AUTO 0x00
-#define TC35815_OPT_10M 0x01
-#define TC35815_OPT_100M 0x02
-#define TC35815_OPT_FULLDUP 0x04
- int linkspeed; /* 10 or 100 */
+ /* Tx control lock. This protects the transmit buffer ring
+ * state along with the "tx full" state of the driver. This
+ * means all netif_queue flow control actions are protected
+ * by this lock as well.
+ */
+ spinlock_t lock;
+
+ int phy_addr;
int fullduplex;
+ unsigned short saved_lpa;
+ struct timer_list timer;
+ enum tc35815_timer_state timer_state; /* State of auto-neg timer. */
+ unsigned int timer_ticks; /* Number of clicks at each state */
/*
* Transmitting: Batch Mode.
* 1 BD in 1 TxFD.
- * Receiving: Packing Mode.
+ * Receiving: Packing Mode. (TC35815_USE_PACKEDBUFFER)
* 1 circular FD for Free Buffer List.
- * RX_BUG_PAGES BD in Free Buffer FD.
+ * RX_BUF_NUM BD in Free Buffer FD.
* One Free Buffer BD has PAGE_SIZE data buffer.
+ * Or Non-Packing Mode.
+ * 1 circular FD for Free Buffer List.
+ * RX_BUF_NUM BD in Free Buffer FD.
+ * One Free Buffer BD has ETH_FRAME_LEN data buffer.
*/
- struct pci_dev *pdev;
- dma_addr_t fd_buf_dma_handle;
- void * fd_buf; /* for TxFD, TxFD, FrFD */
+ void * fd_buf; /* for TxFD, RxFD, FrFD */
+ dma_addr_t fd_buf_dma;
struct TxFD *tfd_base;
- int tfd_start;
- int tfd_end;
+ unsigned int tfd_start;
+ unsigned int tfd_end;
struct RxFD *rfd_base;
struct RxFD *rfd_limit;
struct RxFD *rfd_cur;
struct FrFD *fbl_ptr;
+#ifdef TC35815_USE_PACKEDBUFFER
unsigned char fbl_curid;
- dma_addr_t data_buf_dma_handle[RX_BUF_PAGES];
- void * data_buf[RX_BUF_PAGES]; /* packing */
- spinlock_t lock;
+ void * data_buf[RX_BUF_NUM]; /* packing */
+ dma_addr_t data_buf_dma[RX_BUF_NUM];
+ struct {
+ struct sk_buff *skb;
+ dma_addr_t skb_dma;
+ } tx_skbs[TX_FD_NUM];
+#else
+ unsigned int fbl_count;
+ struct {
+ struct sk_buff *skb;
+ dma_addr_t skb_dma;
+ } tx_skbs[TX_FD_NUM], rx_skbs[RX_BUF_NUM];
+#endif
+ struct mii_if_info mii;
+ unsigned short mii_id[2];
+ u32 msg_enable;
+ board_t boardtype;
};
-/* Index to functions, as function prototypes. */
+static inline dma_addr_t fd_virt_to_bus(struct tc35815_local *lp, void *virt)
+{
+ return lp->fd_buf_dma + ((u8 *)virt - (u8 *)lp->fd_buf);
+}
+#ifdef DEBUG
+static inline void *fd_bus_to_virt(struct tc35815_local *lp, dma_addr_t bus)
+{
+ return (void *)((u8 *)lp->fd_buf + (bus - lp->fd_buf_dma));
+}
+#endif
+#ifdef TC35815_USE_PACKEDBUFFER
+static inline void *rxbuf_bus_to_virt(struct tc35815_local *lp, dma_addr_t bus)
+{
+ int i;
+ for (i = 0; i < RX_BUF_NUM; i++) {
+ if (bus >= lp->data_buf_dma[i] &&
+ bus < lp->data_buf_dma[i] + PAGE_SIZE)
+ return (void *)((u8 *)lp->data_buf[i] +
+ (bus - lp->data_buf_dma[i]));
+ }
+ return NULL;
+}
-static int __devinit tc35815_probe1(struct pci_dev *pdev, unsigned int base_addr, unsigned int irq);
+#define TC35815_DMA_SYNC_ONDEMAND
+static void* alloc_rxbuf_page(struct pci_dev *hwdev, dma_addr_t *dma_handle)
+{
+#ifdef TC35815_DMA_SYNC_ONDEMAND
+ void *buf;
+ /* pci_map + pci_dma_sync will be more effective than
+ * pci_alloc_consistent on some archs. */
+ if ((buf = (void *)__get_free_page(GFP_ATOMIC)) == NULL)
+ return NULL;
+ *dma_handle = pci_map_single(hwdev, buf, PAGE_SIZE,
+ PCI_DMA_FROMDEVICE);
+ if (pci_dma_mapping_error(*dma_handle)) {
+ free_page((unsigned long)buf);
+ return NULL;
+ }
+ return buf;
+#else
+ return pci_alloc_consistent(hwdev, PAGE_SIZE, dma_handle);
+#endif
+}
+
+static void free_rxbuf_page(struct pci_dev *hwdev, void *buf, dma_addr_t dma_handle)
+{
+#ifdef TC35815_DMA_SYNC_ONDEMAND
+ pci_unmap_single(hwdev, dma_handle, PAGE_SIZE, PCI_DMA_FROMDEVICE);
+ free_page((unsigned long)buf);
+#else
+ pci_free_consistent(hwdev, PAGE_SIZE, buf, dma_handle);
+#endif
+}
+#else /* TC35815_USE_PACKEDBUFFER */
+static struct sk_buff *alloc_rxbuf_skb(struct net_device *dev,
+ struct pci_dev *hwdev,
+ dma_addr_t *dma_handle)
+{
+ struct sk_buff *skb;
+ skb = dev_alloc_skb(RX_BUF_SIZE);
+ if (!skb)
+ return NULL;
+ skb->dev = dev;
+ *dma_handle = pci_map_single(hwdev, skb->data, RX_BUF_SIZE,
+ PCI_DMA_FROMDEVICE);
+ if (pci_dma_mapping_error(*dma_handle)) {
+ dev_kfree_skb_any(skb);
+ return NULL;
+ }
+ skb_reserve(skb, 2); /* make IP header 4byte aligned */
+ return skb;
+}
+
+static void free_rxbuf_skb(struct pci_dev *hwdev, struct sk_buff *skb, dma_addr_t dma_handle)
+{
+ pci_unmap_single(hwdev, dma_handle, RX_BUF_SIZE,
+ PCI_DMA_FROMDEVICE);
+ dev_kfree_skb_any(skb);
+}
+#endif /* TC35815_USE_PACKEDBUFFER */
+
+/* Index to functions, as function prototypes. */
static int tc35815_open(struct net_device *dev);
static int tc35815_send_packet(struct sk_buff *skb, struct net_device *dev);
-static void tc35815_tx_timeout(struct net_device *dev);
-static irqreturn_t tc35815_interrupt(int irq, void *dev_id);
+static irqreturn_t tc35815_interrupt(int irq, void *dev_id);
+#ifdef TC35815_NAPI
+static int tc35815_rx(struct net_device *dev, int limit);
+static int tc35815_poll(struct net_device *dev, int *budget);
+#else
static void tc35815_rx(struct net_device *dev);
+#endif
static void tc35815_txdone(struct net_device *dev);
static int tc35815_close(struct net_device *dev);
static struct net_device_stats *tc35815_get_stats(struct net_device *dev);
static void tc35815_set_multicast_list(struct net_device *dev);
+static void tc35815_tx_timeout(struct net_device *dev);
+static int tc35815_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
+#ifdef CONFIG_NET_POLL_CONTROLLER
+static void tc35815_poll_controller(struct net_device *dev);
+#endif
+static const struct ethtool_ops tc35815_ethtool_ops;
+/* Example routines you must write ;->. */
static void tc35815_chip_reset(struct net_device *dev);
static void tc35815_chip_init(struct net_device *dev);
+static void tc35815_find_phy(struct net_device *dev);
static void tc35815_phy_chip_init(struct net_device *dev);
-/* A list of all installed tc35815 devices. */
-static struct net_device *root_tc35815_dev = NULL;
+#ifdef DEBUG
+static void panic_queues(struct net_device *dev);
+#endif
-/*
- * PCI device identifiers for "new style" Linux PCI Device Drivers
- */
-static struct pci_device_id tc35815_pci_tbl[] = {
- { PCI_VENDOR_ID_TOSHIBA_2, PCI_DEVICE_ID_TOSHIBA_TC35815CF, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
- { 0, }
-};
+static void tc35815_timer(unsigned long data);
+static void tc35815_start_auto_negotiation(struct net_device *dev,
+ struct ethtool_cmd *ep);
+static int tc_mdio_read(struct net_device *dev, int phy_id, int location);
+static void tc_mdio_write(struct net_device *dev, int phy_id, int location,
+ int val);
-MODULE_DEVICE_TABLE (pci, tc35815_pci_tbl);
+static void __devinit tc35815_init_dev_addr (struct net_device *dev)
+{
+ struct tc35815_regs __iomem *tr =
+ (struct tc35815_regs __iomem *)dev->base_addr;
+ int i;
-int
-tc35815_probe(struct pci_dev *pdev,
- const struct pci_device_id *ent)
+ /* dev_addr will be overwritten on NETDEV_REGISTER event */
+ while (tc_readl(&tr->PROM_Ctl) & PROM_Busy)
+ ;
+ for (i = 0; i < 6; i += 2) {
+ unsigned short data;
+ tc_writel(PROM_Busy | PROM_Read | (i / 2 + 2), &tr->PROM_Ctl);
+ while (tc_readl(&tr->PROM_Ctl) & PROM_Busy)
+ ;
+ data = tc_readl(&tr->PROM_Data);
+ dev->dev_addr[i] = data & 0xff;
+ dev->dev_addr[i+1] = data >> 8;
+ }
+}
+
+static int __devinit tc35815_init_one (struct pci_dev *pdev,
+ const struct pci_device_id *ent)
{
- int err = 0;
- int ret;
- unsigned long pci_memaddr;
- unsigned int pci_irq_line;
+ void __iomem *ioaddr = NULL;
+ struct net_device *dev;
+ struct tc35815_local *lp;
+ int rc;
+ unsigned long mmio_start, mmio_end, mmio_flags, mmio_len;
+
+ static int printed_version;
+ if (!printed_version++) {
+ printk(version);
+ dev_printk(KERN_DEBUG, &pdev->dev,
+ "speed:%d duplex:%d doforce:%d\n",
+ options.speed, options.duplex, options.doforce);
+ }
- printk(KERN_INFO "tc35815_probe: found device %#08x.%#08x\n", ent->vendor, ent->device);
+ if (!pdev->irq) {
+ dev_warn(&pdev->dev, "no IRQ assigned.\n");
+ return -ENODEV;
+ }
- err = pci_enable_device(pdev);
- if (err)
- return err;
+ /* dev zeroed in alloc_etherdev */
+ dev = alloc_etherdev (sizeof (*lp));
+ if (dev == NULL) {
+ dev_err(&pdev->dev, "unable to alloc new ethernet\n");
+ return -ENOMEM;
+ }
+ SET_MODULE_OWNER(dev);
+ SET_NETDEV_DEV(dev, &pdev->dev);
+ lp = dev->priv;
- pci_memaddr = pci_resource_start (pdev, 1);
+ /* enable device (incl. PCI PM wakeup), and bus-mastering */
+ rc = pci_enable_device (pdev);
+ if (rc)
+ goto err_out;
- printk(KERN_INFO " pci_memaddr=%#08lx resource_flags=%#08lx\n", pci_memaddr, pci_resource_flags (pdev, 0));
+ mmio_start = pci_resource_start (pdev, 1);
+ mmio_end = pci_resource_end (pdev, 1);
+ mmio_flags = pci_resource_flags (pdev, 1);
+ mmio_len = pci_resource_len (pdev, 1);
- if (!pci_memaddr) {
- printk(KERN_WARNING "no PCI MEM resources, aborting\n");
- ret = -ENODEV;
+ /* set this immediately, we need to know before
+ * we talk to the chip directly */
+
+ /* make sure PCI base addr 1 is MMIO */
+ if (!(mmio_flags & IORESOURCE_MEM)) {
+ dev_err(&pdev->dev, "region #1 not an MMIO resource, aborting\n");
+ rc = -ENODEV;
goto err_out;
}
- pci_irq_line = pdev->irq;
- /* irq disabled. */
- if (pci_irq_line == 0) {
- printk(KERN_WARNING "no PCI irq, aborting\n");
- ret = -ENODEV;
+
+ /* check for weird/broken PCI region reporting */
+ if ((mmio_len < sizeof(struct tc35815_regs))) {
+ dev_err(&pdev->dev, "Invalid PCI region size(s), aborting\n");
+ rc = -ENODEV;
goto err_out;
}
- ret = tc35815_probe1(pdev, pci_memaddr, pci_irq_line);
- if (ret)
+ rc = pci_request_regions (pdev, MODNAME);
+ if (rc)
goto err_out;
- pci_set_master(pdev);
+ pci_set_master (pdev);
- return 0;
-
-err_out:
- pci_disable_device(pdev);
- return ret;
-}
+ /* ioremap MMIO region */
+ ioaddr = ioremap (mmio_start, mmio_len);
+ if (ioaddr == NULL) {
+ dev_err(&pdev->dev, "cannot remap MMIO, aborting\n");
+ rc = -EIO;
+ goto err_out_free_res;
+ }
-static int __devinit tc35815_probe1(struct pci_dev *pdev, unsigned int base_addr, unsigned int irq)
-{
- static unsigned version_printed = 0;
- int i, ret;
- struct tc35815_local *lp;
- struct tc35815_regs *tr;
- struct net_device *dev;
+ /* Initialize the device structure. */
+ dev->open = tc35815_open;
+ dev->hard_start_xmit = tc35815_send_packet;
+ dev->stop = tc35815_close;
+ dev->get_stats = tc35815_get_stats;
+ dev->set_multicast_list = tc35815_set_multicast_list;
+ dev->do_ioctl = tc35815_ioctl;
+ dev->ethtool_ops = &tc35815_ethtool_ops;
+ dev->tx_timeout = tc35815_tx_timeout;
+ dev->watchdog_timeo = TC35815_TX_TIMEOUT;
+#ifdef TC35815_NAPI
+ dev->poll = tc35815_poll;
+ dev->weight = NAPI_WEIGHT;
+#endif
+#ifdef CONFIG_NET_POLL_CONTROLLER
+ dev->poll_controller = tc35815_poll_controller;
+#endif
- /* Allocate a new 'dev' if needed. */
- dev = alloc_etherdev(sizeof(struct tc35815_local));
- if (dev == NULL)
- return -ENOMEM;
+ dev->irq = pdev->irq;
+ dev->base_addr = (unsigned long) ioaddr;
- /*
- * alloc_etherdev allocs and zeros dev->priv
- */
+ /* dev->priv/lp zeroed and aligned in alloc_etherdev */
lp = dev->priv;
+ spin_lock_init(&lp->lock);
+ lp->pci_dev = pdev;
+ lp->boardtype = ent->driver_data;
- if (tc35815_debug && version_printed++ == 0)
- printk(KERN_DEBUG "%s", version);
-
- /* Fill in the 'dev' fields. */
- dev->irq = irq;
- dev->base_addr = (unsigned long)ioremap(base_addr,
- sizeof(struct tc35815_regs));
- if (!dev->base_addr) {
- ret = -ENOMEM;
- goto err_out;
- }
- tr = (struct tc35815_regs*)dev->base_addr;
+ lp->msg_enable = NETIF_MSG_TX_ERR | NETIF_MSG_HW | NETIF_MSG_DRV | NETIF_MSG_LINK;
+ pci_set_drvdata(pdev, dev);
+ /* Soft reset the chip. */
tc35815_chip_reset(dev);
- /* Retrieve and print the ethernet address. */
- while (tc_readl(&tr->PROM_Ctl) & PROM_Busy)
- ;
- for (i = 0; i < 6; i += 2) {
- unsigned short data;
- tc_writel(PROM_Busy | PROM_Read | (i / 2 + 2), &tr->PROM_Ctl);
- while (tc_readl(&tr->PROM_Ctl) & PROM_Busy)
- ;
- data = tc_readl(&tr->PROM_Data);
- dev->dev_addr[i] = data & 0xff;
- dev->dev_addr[i+1] = data >> 8;
- }
+ /* Retrieve the ethernet address. */
+ tc35815_init_dev_addr(dev);
+
+ rc = register_netdev (dev);
+ if (rc)
+ goto err_out_unmap;
+
+ memcpy(dev->perm_addr, dev->dev_addr, dev->addr_len);
+ printk(KERN_INFO "%s: %s at 0x%lx, "
+ "%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x, "
+ "IRQ %d\n",
+ dev->name,
+ board_info[ent->driver_data].name,
+ dev->base_addr,
+ dev->dev_addr[0], dev->dev_addr[1],
+ dev->dev_addr[2], dev->dev_addr[3],
+ dev->dev_addr[4], dev->dev_addr[5],
+ dev->irq);
+
+ setup_timer(&lp->timer, tc35815_timer, (unsigned long) dev);
+ lp->mii.dev = dev;
+ lp->mii.mdio_read = tc_mdio_read;
+ lp->mii.mdio_write = tc_mdio_write;
+ lp->mii.phy_id_mask = 0x1f;
+ lp->mii.reg_num_mask = 0x1f;
+ tc35815_find_phy(dev);
+ lp->mii.phy_id = lp->phy_addr;
+ lp->mii.full_duplex = 0;
+ lp->mii.force_media = 0;
- /* Initialize the device structure. */
- lp->pdev = pdev;
- lp->next_module = root_tc35815_dev;
- root_tc35815_dev = dev;
+ return 0;
- spin_lock_init(&lp->lock);
+err_out_unmap:
+ iounmap(ioaddr);
+err_out_free_res:
+ pci_release_regions (pdev);
+err_out:
+ free_netdev (dev);
+ return rc;
+}
- if (dev->mem_start > 0) {
- lp->option = dev->mem_start;
- if ((lp->option & TC35815_OPT_10M) &&
- (lp->option & TC35815_OPT_100M)) {
- /* if both speed speficied, auto select. */
- lp->option &= ~(TC35815_OPT_10M | TC35815_OPT_100M);
- }
- }
- //XXX fixme
- lp->option |= TC35815_OPT_10M;
- /* do auto negotiation */
- tc35815_phy_chip_init(dev);
+static void __devexit tc35815_remove_one (struct pci_dev *pdev)
+{
+ struct net_device *dev = pci_get_drvdata (pdev);
+ unsigned long mmio_addr;
- dev->open = tc35815_open;
- dev->stop = tc35815_close;
- dev->tx_timeout = tc35815_tx_timeout;
- dev->watchdog_timeo = TX_TIMEOUT;
- dev->hard_start_xmit = tc35815_send_packet;
- dev->get_stats = tc35815_get_stats;
- dev->set_multicast_list = tc35815_set_multicast_list;
- SET_MODULE_OWNER(dev);
- SET_NETDEV_DEV(dev, &pdev->dev);
+ mmio_addr = dev->base_addr;
- ret = register_netdev(dev);
- if (ret)
- goto err_out_iounmap;
+ unregister_netdev (dev);
- printk(KERN_INFO "%s: %s found at %#x, irq %d, MAC",
- dev->name, cardname, base_addr, irq);
- for (i = 0; i < 6; i++)
- printk(" %2.2x", dev->dev_addr[i]);
- printk("\n");
- printk(KERN_INFO "%s: linkspeed %dMbps, %s Duplex\n",
- dev->name, lp->linkspeed, lp->fullduplex ? "Full" : "Half");
+ if (mmio_addr) {
+ iounmap ((void __iomem *)mmio_addr);
+ pci_release_regions (pdev);
+ }
- return 0;
+ free_netdev (dev);
-err_out_iounmap:
- iounmap((void *) dev->base_addr);
-err_out:
- free_netdev(dev);
- return ret;
+ pci_set_drvdata (pdev, NULL);
}
-
static int
tc35815_init_queues(struct net_device *dev)
{
@@ -629,44 +831,64 @@ tc35815_init_queues(struct net_device *d
unsigned long fd_addr;
if (!lp->fd_buf) {
- if (sizeof(struct FDesc) +
- sizeof(struct BDesc) * RX_BUF_PAGES +
- sizeof(struct FDesc) * RX_FD_NUM +
- sizeof(struct TxFD) * TX_FD_NUM > PAGE_SIZE * FD_PAGE_NUM) {
- printk(KERN_WARNING "%s: Invalid Queue Size.\n", dev->name);
- return -ENOMEM;
- }
+ BUG_ON(sizeof(struct FDesc) +
+ sizeof(struct BDesc) * RX_BUF_NUM +
+ sizeof(struct FDesc) * RX_FD_NUM +
+ sizeof(struct TxFD) * TX_FD_NUM >
+ PAGE_SIZE * FD_PAGE_NUM);
- if ((lp->fd_buf = (void *)__get_free_pages(GFP_KERNEL, FD_PAGE_ORDER)) == 0)
+ if ((lp->fd_buf = pci_alloc_consistent(lp->pci_dev, PAGE_SIZE * FD_PAGE_NUM, &lp->fd_buf_dma)) == 0)
return -ENOMEM;
- for (i = 0; i < RX_BUF_PAGES; i++) {
- if ((lp->data_buf[i] = (void *)get_zeroed_page(GFP_KERNEL)) == 0) {
+ for (i = 0; i < RX_BUF_NUM; i++) {
+#ifdef TC35815_USE_PACKEDBUFFER
+ if ((lp->data_buf[i] = alloc_rxbuf_page(lp->pci_dev, &lp->data_buf_dma[i])) == NULL) {
while (--i >= 0) {
- free_page((unsigned long)lp->data_buf[i]);
- lp->data_buf[i] = 0;
+ free_rxbuf_page(lp->pci_dev,
+ lp->data_buf[i],
+ lp->data_buf_dma[i]);
+ lp->data_buf[i] = NULL;
}
- free_page((unsigned long)lp->fd_buf);
- lp->fd_buf = 0;
+ pci_free_consistent(lp->pci_dev,
+ PAGE_SIZE * FD_PAGE_NUM,
+ lp->fd_buf,
+ lp->fd_buf_dma);
+ lp->fd_buf = NULL;
+ return -ENOMEM;
+ }
+#else
+ lp->rx_skbs[i].skb =
+ alloc_rxbuf_skb(dev, lp->pci_dev,
+ &lp->rx_skbs[i].skb_dma);
+ if (!lp->rx_skbs[i].skb) {
+ while (--i >= 0) {
+ free_rxbuf_skb(lp->pci_dev,
+ lp->rx_skbs[i].skb,
+ lp->rx_skbs[i].skb_dma);
+ lp->rx_skbs[i].skb = NULL;
+ }
+ pci_free_consistent(lp->pci_dev,
+ PAGE_SIZE * FD_PAGE_NUM,
+ lp->fd_buf,
+ lp->fd_buf_dma);
+ lp->fd_buf = NULL;
return -ENOMEM;
}
-#ifdef __mips__
- dma_cache_wback_inv((unsigned long)lp->data_buf[i], PAGE_SIZE * FD_PAGE_NUM);
#endif
}
-#ifdef __mips__
- dma_cache_wback_inv((unsigned long)lp->fd_buf, PAGE_SIZE * FD_PAGE_NUM);
+ printk(KERN_DEBUG "%s: FD buf %p DataBuf",
+ dev->name, lp->fd_buf);
+#ifdef TC35815_USE_PACKEDBUFFER
+ printk(" DataBuf");
+ for (i = 0; i < RX_BUF_NUM; i++)
+ printk(" %p", lp->data_buf[i]);
#endif
+ printk("\n");
} else {
- memset(lp->fd_buf, 0, PAGE_SIZE * FD_PAGE_NUM);
-#ifdef __mips__
- dma_cache_wback_inv((unsigned long)lp->fd_buf, PAGE_SIZE * FD_PAGE_NUM);
-#endif
+ for (i = 0; i < FD_PAGE_NUM; i++) {
+ clear_page((void *)((unsigned long)lp->fd_buf + i * PAGE_SIZE));
+ }
}
-#ifdef __mips__
- fd_addr = (unsigned long)vtonocache(lp->fd_buf);
-#else
fd_addr = (unsigned long)lp->fd_buf;
-#endif
/* Free Descriptors (for Receive) */
lp->rfd_base = (struct RxFD *)fd_addr;
@@ -675,34 +897,66 @@ tc35815_init_queues(struct net_device *d
lp->rfd_base[i].fd.FDCtl = cpu_to_le32(FD_CownsFD);
}
lp->rfd_cur = lp->rfd_base;
- lp->rfd_limit = (struct RxFD *)(fd_addr -
- sizeof(struct FDesc) -
- sizeof(struct BDesc) * 30);
+ lp->rfd_limit = (struct RxFD *)fd_addr - (RX_FD_RESERVE + 1);
/* Transmit Descriptors */
lp->tfd_base = (struct TxFD *)fd_addr;
fd_addr += sizeof(struct TxFD) * TX_FD_NUM;
for (i = 0; i < TX_FD_NUM; i++) {
- lp->tfd_base[i].fd.FDNext = cpu_to_le32(virt_to_bus(&lp->tfd_base[i+1]));
- lp->tfd_base[i].fd.FDSystem = cpu_to_le32(0);
+ lp->tfd_base[i].fd.FDNext = cpu_to_le32(fd_virt_to_bus(lp, &lp->tfd_base[i+1]));
+ lp->tfd_base[i].fd.FDSystem = cpu_to_le32(0xffffffff);
lp->tfd_base[i].fd.FDCtl = cpu_to_le32(0);
}
- lp->tfd_base[TX_FD_NUM-1].fd.FDNext = cpu_to_le32(virt_to_bus(&lp->tfd_base[0]));
+ lp->tfd_base[TX_FD_NUM-1].fd.FDNext = cpu_to_le32(fd_virt_to_bus(lp, &lp->tfd_base[0]));
lp->tfd_start = 0;
lp->tfd_end = 0;
/* Buffer List (for Receive) */
lp->fbl_ptr = (struct FrFD *)fd_addr;
- lp->fbl_ptr->fd.FDNext = cpu_to_le32(virt_to_bus(lp->fbl_ptr));
- lp->fbl_ptr->fd.FDCtl = cpu_to_le32(RX_BUF_PAGES | FD_CownsFD);
- for (i = 0; i < RX_BUF_PAGES; i++) {
- lp->fbl_ptr->bd[i].BuffData = cpu_to_le32(virt_to_bus(lp->data_buf[i]));
+ lp->fbl_ptr->fd.FDNext = cpu_to_le32(fd_virt_to_bus(lp, lp->fbl_ptr));
+ lp->fbl_ptr->fd.FDCtl = cpu_to_le32(RX_BUF_NUM | FD_CownsFD);
+#ifndef TC35815_USE_PACKEDBUFFER
+ /*
+ * move all allocated skbs to head of rx_skbs[] array.
+ * fbl_count mighe not be RX_BUF_NUM if alloc_rxbuf_skb() in
+ * tc35815_rx() had failed.
+ */
+ lp->fbl_count = 0;
+ for (i = 0; i < RX_BUF_NUM; i++) {
+ if (lp->rx_skbs[i].skb) {
+ if (i != lp->fbl_count) {
+ lp->rx_skbs[lp->fbl_count].skb =
+ lp->rx_skbs[i].skb;
+ lp->rx_skbs[lp->fbl_count].skb_dma =
+ lp->rx_skbs[i].skb_dma;
+ }
+ lp->fbl_count++;
+ }
+ }
+#endif
+ for (i = 0; i < RX_BUF_NUM; i++) {
+#ifdef TC35815_USE_PACKEDBUFFER
+ lp->fbl_ptr->bd[i].BuffData = cpu_to_le32(lp->data_buf_dma[i]);
+#else
+ if (i >= lp->fbl_count) {
+ lp->fbl_ptr->bd[i].BuffData = 0;
+ lp->fbl_ptr->bd[i].BDCtl = 0;
+ continue;
+ }
+ lp->fbl_ptr->bd[i].BuffData =
+ cpu_to_le32(lp->rx_skbs[i].skb_dma);
+#endif
/* BDID is index of FrFD.bd[] */
lp->fbl_ptr->bd[i].BDCtl =
- cpu_to_le32(BD_CownsBD | (i << BD_RxBDID_SHIFT) | PAGE_SIZE);
+ cpu_to_le32(BD_CownsBD | (i << BD_RxBDID_SHIFT) |
+ RX_BUF_SIZE);
}
+#ifdef TC35815_USE_PACKEDBUFFER
lp->fbl_curid = 0;
+#endif
+ printk(KERN_DEBUG "%s: TxFD %p RxFD %p FrFD %p\n",
+ dev->name, lp->tfd_base, lp->rfd_base, lp->fbl_ptr);
return 0;
}
@@ -713,11 +967,25 @@ tc35815_clear_queues(struct net_device *
int i;
for (i = 0; i < TX_FD_NUM; i++) {
- struct sk_buff *skb = (struct sk_buff *)
- le32_to_cpu(lp->tfd_base[i].fd.FDSystem);
- if (skb)
+ u32 fdsystem = le32_to_cpu(lp->tfd_base[i].fd.FDSystem);
+ struct sk_buff *skb =
+ fdsystem != 0xffffffff ?
+ lp->tx_skbs[fdsystem].skb : NULL;
+#ifdef DEBUG
+ if (lp->tx_skbs[i].skb != skb) {
+ printk("%s: tx_skbs mismatch(%d).\n", dev->name, i);
+ panic_queues(dev);
+ }
+#else
+ BUG_ON(lp->tx_skbs[i].skb != skb);
+#endif
+ if (skb) {
+ pci_unmap_single(lp->pci_dev, lp->tx_skbs[i].skb_dma, skb->len, PCI_DMA_TODEVICE);
+ lp->tx_skbs[i].skb = NULL;
+ lp->tx_skbs[i].skb_dma = 0;
dev_kfree_skb_any(skb);
- lp->tfd_base[i].fd.FDSystem = cpu_to_le32(0);
+ }
+ lp->tfd_base[i].fd.FDSystem = cpu_to_le32(0xffffffff);
}
tc35815_init_queues(dev);
@@ -731,28 +999,53 @@ tc35815_free_queues(struct net_device *d
if (lp->tfd_base) {
for (i = 0; i < TX_FD_NUM; i++) {
- struct sk_buff *skb = (struct sk_buff *)
- le32_to_cpu(lp->tfd_base[i].fd.FDSystem);
- if (skb)
- dev_kfree_skb_any(skb);
- lp->tfd_base[i].fd.FDSystem = cpu_to_le32(0);
+ u32 fdsystem = le32_to_cpu(lp->tfd_base[i].fd.FDSystem);
+ struct sk_buff *skb =
+ fdsystem != 0xffffffff ?
+ lp->tx_skbs[fdsystem].skb : NULL;
+#ifdef DEBUG
+ if (lp->tx_skbs[i].skb != skb) {
+ printk("%s: tx_skbs mismatch(%d).\n", dev->name, i);
+ panic_queues(dev);
+ }
+#else
+ BUG_ON(lp->tx_skbs[i].skb != skb);
+#endif
+ if (skb) {
+ dev_kfree_skb(skb);
+ pci_unmap_single(lp->pci_dev, lp->tx_skbs[i].skb_dma, skb->len, PCI_DMA_TODEVICE);
+ lp->tx_skbs[i].skb = NULL;
+ lp->tx_skbs[i].skb_dma = 0;
+ }
+ lp->tfd_base[i].fd.FDSystem = cpu_to_le32(0xffffffff);
}
}
lp->rfd_base = NULL;
- lp->rfd_base = NULL;
lp->rfd_limit = NULL;
lp->rfd_cur = NULL;
lp->fbl_ptr = NULL;
- for (i = 0; i < RX_BUF_PAGES; i++) {
- if (lp->data_buf[i])
- free_page((unsigned long)lp->data_buf[i]);
- lp->data_buf[i] = 0;
+ for (i = 0; i < RX_BUF_NUM; i++) {
+#ifdef TC35815_USE_PACKEDBUFFER
+ if (lp->data_buf[i]) {
+ free_rxbuf_page(lp->pci_dev,
+ lp->data_buf[i], lp->data_buf_dma[i]);
+ lp->data_buf[i] = NULL;
+ }
+#else
+ if (lp->rx_skbs[i].skb) {
+ free_rxbuf_skb(lp->pci_dev, lp->rx_skbs[i].skb,
+ lp->rx_skbs[i].skb_dma);
+ lp->rx_skbs[i].skb = NULL;
+ }
+#endif
+ }
+ if (lp->fd_buf) {
+ pci_free_consistent(lp->pci_dev, PAGE_SIZE * FD_PAGE_NUM,
+ lp->fd_buf, lp->fd_buf_dma);
+ lp->fd_buf = NULL;
}
- if (lp->fd_buf)
- __free_pages(lp->fd_buf, FD_PAGE_ORDER);
- lp->fd_buf = NULL;
}
static void
@@ -792,6 +1085,7 @@ dump_rxfd(struct RxFD *fd)
return bd_count;
}
+#if defined(DEBUG) || defined(TC35815_USE_PACKEDBUFFER)
static void
dump_frfd(struct FrFD *fd)
{
@@ -802,20 +1096,22 @@ dump_frfd(struct FrFD *fd)
le32_to_cpu(fd->fd.FDStat),
le32_to_cpu(fd->fd.FDCtl));
printk("BD: ");
- for (i = 0; i < RX_BUF_PAGES; i++)
+ for (i = 0; i < RX_BUF_NUM; i++)
printk(" %08x %08x",
le32_to_cpu(fd->bd[i].BuffData),
le32_to_cpu(fd->bd[i].BDCtl));
printk("\n");
}
+#endif
+#ifdef DEBUG
static void
panic_queues(struct net_device *dev)
{
struct tc35815_local *lp = dev->priv;
int i;
- printk("TxFD base %p, start %d, end %d\n",
+ printk("TxFD base %p, start %u, end %u\n",
lp->tfd_base, lp->tfd_start, lp->tfd_end);
printk("RxFD base %p limit %p cur %p\n",
lp->rfd_base, lp->rfd_limit, lp->rfd_cur);
@@ -829,31 +1125,13 @@ panic_queues(struct net_device *dev)
dump_frfd(lp->fbl_ptr);
panic("%s: Illegal queue state.", dev->name);
}
-
-#if 0
-static void print_buf(char *add, int length)
-{
- int i;
- int len = length;
-
- printk("print_buf(%08x)(%x)\n", (unsigned int) add,length);
-
- if (len > 100)
- len = 100;
- for (i = 0; i < len; i++) {
- printk(" %2.2X", (unsigned char) add[i]);
- if (!(i % 16))
- printk("\n");
- }
- printk("\n");
-}
#endif
static void print_eth(char *add)
{
int i;
- printk("print_eth(%08x)\n", (unsigned int) add);
+ printk("print_eth(%p)\n", add);
for (i = 0; i < 6; i++)
printk(" %2.2X", (unsigned char) add[i + 6]);
printk(" =>");
@@ -862,6 +1140,73 @@ static void print_eth(char *add)
printk(" : %2.2X%2.2X\n", (unsigned char) add[12], (unsigned char) add[13]);
}
+static int tc35815_tx_full(struct net_device *dev)
+{
+ struct tc35815_local *lp = dev->priv;
+ return ((lp->tfd_start + 1) % TX_FD_NUM == lp->tfd_end);
+}
+
+static void tc35815_restart(struct net_device *dev)
+{
+ struct tc35815_local *lp = dev->priv;
+ int pid = lp->phy_addr;
+ int do_phy_reset = 1;
+ del_timer(&lp->timer); /* Kill if running */
+
+ if (lp->mii_id[0] == 0x0016 && (lp->mii_id[1] & 0xfc00) == 0xf800) {
+ /* Resetting PHY cause problem on some chip... (SEEQ 80221) */
+ do_phy_reset = 0;
+ }
+ if (do_phy_reset) {
+ int timeout;
+ tc_mdio_write(dev, pid, MII_BMCR, BMCR_RESET);
+ timeout = 100;
+ while (--timeout) {
+ if (!(tc_mdio_read(dev, pid, MII_BMCR) & BMCR_RESET))
+ break;
+ udelay(1);
+ }
+ if (!timeout)
+ printk(KERN_ERR "%s: BMCR reset failed.\n", dev->name);
+ }
+
+ tc35815_chip_reset(dev);
+ tc35815_clear_queues(dev);
+ tc35815_chip_init(dev);
+ /* Reconfigure CAM again since tc35815_chip_init() initialize it. */
+ tc35815_set_multicast_list(dev);
+}
+
+static void tc35815_tx_timeout(struct net_device *dev)
+{
+ struct tc35815_local *lp = dev->priv;
+ struct tc35815_regs __iomem *tr =
+ (struct tc35815_regs __iomem *)dev->base_addr;
+
+ printk(KERN_WARNING "%s: transmit timed out, status %#x\n",
+ dev->name, tc_readl(&tr->Tx_Stat));
+
+ /* Try to restart the adaptor. */
+ spin_lock_irq(&lp->lock);
+ tc35815_restart(dev);
+ spin_unlock_irq(&lp->lock);
+
+ lp->stats.tx_errors++;
+
+ /* If we have space available to accept new transmit
+ * requests, wake up the queueing layer. This would
+ * be the case if the chipset_init() call above just
+ * flushes out the tx queue and empties it.
+ *
+ * If instead, the tx queue is retained then the
+ * netif_wake_queue() call should be placed in the
+ * TX completion interrupt handler of the driver instead
+ * of here.
+ */
+ if (!tc35815_tx_full(dev))
+ netif_wake_queue(dev);
+}
+
/*
* Open/initialize the board. This is called (in the current kernel)
* sometime after booting when the 'ifconfig' program is run.
@@ -874,16 +1219,16 @@ static int
tc35815_open(struct net_device *dev)
{
struct tc35815_local *lp = dev->priv;
+
/*
* This is used if the interrupt line can turned off (shared).
* See 3c503.c for an example of selecting the IRQ at config-time.
*/
-
- if (dev->irq == 0 ||
- request_irq(dev->irq, &tc35815_interrupt, IRQF_SHARED, cardname, dev)) {
+ if (request_irq(dev->irq, &tc35815_interrupt, IRQF_SHARED, dev->name, dev)) {
return -EAGAIN;
}
+ del_timer(&lp->timer); /* Kill if running */
tc35815_chip_reset(dev);
if (tc35815_init_queues(dev) != 0) {
@@ -892,138 +1237,119 @@ tc35815_open(struct net_device *dev)
}
/* Reset the hardware here. Don't forget to set the station address. */
+ spin_lock_irq(&lp->lock);
tc35815_chip_init(dev);
+ spin_unlock_irq(&lp->lock);
- lp->tbusy = 0;
+ /* We are now ready to accept transmit requeusts from
+ * the queueing layer of the networking.
+ */
netif_start_queue(dev);
return 0;
}
-static void tc35815_tx_timeout(struct net_device *dev)
-{
- struct tc35815_local *lp = dev->priv;
- struct tc35815_regs *tr = (struct tc35815_regs *)dev->base_addr;
- unsigned long flags;
-
- spin_lock_irqsave(&lp->lock, flags);
- printk(KERN_WARNING "%s: transmit timed out, status %#lx\n",
- dev->name, tc_readl(&tr->Tx_Stat));
- /* Try to restart the adaptor. */
- tc35815_chip_reset(dev);
- tc35815_clear_queues(dev);
- tc35815_chip_init(dev);
- lp->tbusy=0;
- spin_unlock_irqrestore(&lp->lock, flags);
- dev->trans_start = jiffies;
- netif_wake_queue(dev);
-}
-
+/* This will only be invoked if your driver is _not_ in XOFF state.
+ * What this means is that you need not check it, and that this
+ * invariant will hold if you make sure that the netif_*_queue()
+ * calls are done at the proper times.
+ */
static int tc35815_send_packet(struct sk_buff *skb, struct net_device *dev)
{
struct tc35815_local *lp = dev->priv;
- struct tc35815_regs *tr = (struct tc35815_regs *)dev->base_addr;
-
- if (netif_queue_stopped(dev)) {
- /*
- * If we get here, some higher level has decided we are broken.
- * There should really be a "kick me" function call instead.
- */
- int tickssofar = jiffies - dev->trans_start;
- if (tickssofar < 5)
- return 1;
- printk(KERN_WARNING "%s: transmit timed out, status %#lx\n",
- dev->name, tc_readl(&tr->Tx_Stat));
- /* Try to restart the adaptor. */
- tc35815_chip_reset(dev);
- tc35815_clear_queues(dev);
- tc35815_chip_init(dev);
- lp->tbusy=0;
- dev->trans_start = jiffies;
- netif_wake_queue(dev);
- }
+ struct TxFD *txfd;
+ unsigned long flags;
- /*
- * Block a timer-based transmit from overlapping. This could better be
- * done with atomic_swap(1, lp->tbusy), but set_bit() works as well.
+ /* If some error occurs while trying to transmit this
+ * packet, you should return '1' from this function.
+ * In such a case you _may not_ do anything to the
+ * SKB, it is still owned by the network queueing
+ * layer when an error is returned. This means you
+ * may not modify any SKB fields, you may not free
+ * the SKB, etc.
*/
- if (test_and_set_bit(0, (void*)&lp->tbusy) != 0) {
- printk(KERN_WARNING "%s: Transmitter access conflict.\n", dev->name);
- dev_kfree_skb_any(skb);
- } else {
- short length = ETH_ZLEN < skb->len ? skb->len : ETH_ZLEN;
- unsigned char *buf = skb->data;
- struct TxFD *txfd = &lp->tfd_base[lp->tfd_start];
- unsigned long flags;
- lp->stats.tx_bytes += skb->len;
+ /* This is the most common case for modern hardware.
+ * The spinlock protects this code from the TX complete
+ * hardware interrupt handler. Queue flow control is
+ * thus managed under this lock as well.
+ */
+ spin_lock_irqsave(&lp->lock, flags);
-#ifdef __mips__
- dma_cache_wback_inv((unsigned long)buf, length);
+ /* failsafe... (handle txdone now if half of FDs are used) */
+ if ((lp->tfd_start + TX_FD_NUM - lp->tfd_end) % TX_FD_NUM >
+ TX_FD_NUM / 2)
+ tc35815_txdone(dev);
+
+ if (netif_msg_pktdata(lp))
+ print_eth(skb->data);
+#ifdef DEBUG
+ if (lp->tx_skbs[lp->tfd_start].skb) {
+ printk("%s: tx_skbs conflict.\n", dev->name);
+ panic_queues(dev);
+ }
+#else
+ BUG_ON(lp->tx_skbs[lp->tfd_start].skb);
#endif
-
- spin_lock_irqsave(&lp->lock, flags);
-
- /* failsafe... */
- if (lp->tfd_start != lp->tfd_end)
- tc35815_txdone(dev);
-
-
- txfd->bd.BuffData = cpu_to_le32(virt_to_bus(buf));
-
- txfd->bd.BDCtl = cpu_to_le32(length);
- txfd->fd.FDSystem = cpu_to_le32((__u32)skb);
- txfd->fd.FDCtl = cpu_to_le32(FD_CownsFD | (1 << FD_BDCnt_SHIFT));
-
- if (lp->tfd_start == lp->tfd_end) {
- /* Start DMA Transmitter. */
- txfd->fd.FDNext |= cpu_to_le32(FD_Next_EOL);
+ lp->tx_skbs[lp->tfd_start].skb = skb;
+ lp->tx_skbs[lp->tfd_start].skb_dma = pci_map_single(lp->pci_dev, skb->data, skb->len, PCI_DMA_TODEVICE);
+
+ /*add to ring */
+ txfd = &lp->tfd_base[lp->tfd_start];
+ txfd->bd.BuffData = cpu_to_le32(lp->tx_skbs[lp->tfd_start].skb_dma);
+ txfd->bd.BDCtl = cpu_to_le32(skb->len);
+ txfd->fd.FDSystem = cpu_to_le32(lp->tfd_start);
+ txfd->fd.FDCtl = cpu_to_le32(FD_CownsFD | (1 << FD_BDCnt_SHIFT));
+
+ if (lp->tfd_start == lp->tfd_end) {
+ struct tc35815_regs __iomem *tr =
+ (struct tc35815_regs __iomem *)dev->base_addr;
+ /* Start DMA Transmitter. */
+ txfd->fd.FDNext |= cpu_to_le32(FD_Next_EOL);
#ifdef GATHER_TXINT
- txfd->fd.FDCtl |= cpu_to_le32(FD_FrmOpt_IntTx);
+ txfd->fd.FDCtl |= cpu_to_le32(FD_FrmOpt_IntTx);
#endif
- if (tc35815_debug > 2) {
- printk("%s: starting TxFD.\n", dev->name);
- dump_txfd(txfd);
- if (tc35815_debug > 3)
- print_eth(buf);
- }
- tc_writel(virt_to_bus(txfd), &tr->TxFrmPtr);
- } else {
- txfd->fd.FDNext &= cpu_to_le32(~FD_Next_EOL);
- if (tc35815_debug > 2) {
- printk("%s: queueing TxFD.\n", dev->name);
- dump_txfd(txfd);
- if (tc35815_debug > 3)
- print_eth(buf);
- }
+ if (netif_msg_tx_queued(lp)) {
+ printk("%s: starting TxFD.\n", dev->name);
+ dump_txfd(txfd);
+ }
+ tc_writel(fd_virt_to_bus(lp, txfd), &tr->TxFrmPtr);
+ } else {
+ txfd->fd.FDNext &= cpu_to_le32(~FD_Next_EOL);
+ if (netif_msg_tx_queued(lp)) {
+ printk("%s: queueing TxFD.\n", dev->name);
+ dump_txfd(txfd);
}
- lp->tfd_start = (lp->tfd_start + 1) % TX_FD_NUM;
+ }
+ lp->tfd_start = (lp->tfd_start + 1) % TX_FD_NUM;
- dev->trans_start = jiffies;
+ dev->trans_start = jiffies;
- if ((lp->tfd_start + 1) % TX_FD_NUM != lp->tfd_end) {
- /* we can send another packet */
- lp->tbusy = 0;
- netif_start_queue(dev);
- } else {
- netif_stop_queue(dev);
- if (tc35815_debug > 1)
- printk(KERN_WARNING "%s: TxFD Exhausted.\n", dev->name);
- }
- spin_unlock_irqrestore(&lp->lock, flags);
+ /* If we just used up the very last entry in the
+ * TX ring on this device, tell the queueing
+ * layer to send no more.
+ */
+ if (tc35815_tx_full(dev)) {
+ if (netif_msg_tx_queued(lp))
+ printk(KERN_WARNING "%s: TxFD Exhausted.\n", dev->name);
+ netif_stop_queue(dev);
}
+ /* When the TX completion hw interrupt arrives, this
+ * is when the transmit statistics are updated.
+ */
+
+ spin_unlock_irqrestore(&lp->lock, flags);
return 0;
}
#define FATAL_ERROR_INT \
(Int_IntPCI | Int_DmParErr | Int_IntNRAbt)
-static void tc35815_fatal_error_interrupt(struct net_device *dev, int status)
+static void tc35815_fatal_error_interrupt(struct net_device *dev, u32 status)
{
static int count;
printk(KERN_WARNING "%s: Fatal Error Intterrupt (%#x):",
dev->name, status);
-
if (status & Int_IntPCI)
printk(" IntPCI");
if (status & Int_DmParErr)
@@ -1033,110 +1359,170 @@ static void tc35815_fatal_error_interrup
printk("\n");
if (count++ > 100)
panic("%s: Too many fatal errors.", dev->name);
- printk(KERN_WARNING "%s: Resetting %s...\n", dev->name, cardname);
+ printk(KERN_WARNING "%s: Resetting ...\n", dev->name);
/* Try to restart the adaptor. */
- tc35815_chip_reset(dev);
- tc35815_clear_queues(dev);
- tc35815_chip_init(dev);
+ tc35815_restart(dev);
+}
+
+#ifdef TC35815_NAPI
+static int tc35815_do_interrupt(struct net_device *dev, u32 status, int limit)
+#else
+static int tc35815_do_interrupt(struct net_device *dev, u32 status)
+#endif
+{
+ struct tc35815_local *lp = dev->priv;
+ struct tc35815_regs __iomem *tr =
+ (struct tc35815_regs __iomem *)dev->base_addr;
+ int ret = -1;
+
+ /* Fatal errors... */
+ if (status & FATAL_ERROR_INT) {
+ tc35815_fatal_error_interrupt(dev, status);
+ return 0;
+ }
+ /* recoverable errors */
+ if (status & Int_IntFDAEx) {
+ /* disable FDAEx int. (until we make rooms...) */
+ tc_writel(tc_readl(&tr->Int_En) & ~Int_FDAExEn, &tr->Int_En);
+ printk(KERN_WARNING
+ "%s: Free Descriptor Area Exhausted (%#x).\n",
+ dev->name, status);
+ lp->stats.rx_dropped++;
+ ret = 0;
+ }
+ if (status & Int_IntBLEx) {
+ /* disable BLEx int. (until we make rooms...) */
+ tc_writel(tc_readl(&tr->Int_En) & ~Int_BLExEn, &tr->Int_En);
+ printk(KERN_WARNING
+ "%s: Buffer List Exhausted (%#x).\n",
+ dev->name, status);
+ lp->stats.rx_dropped++;
+ ret = 0;
+ }
+ if (status & Int_IntExBD) {
+ printk(KERN_WARNING
+ "%s: Excessive Buffer Descriptiors (%#x).\n",
+ dev->name, status);
+ lp->stats.rx_length_errors++;
+ ret = 0;
+ }
+
+ /* normal notification */
+ if (status & Int_IntMacRx) {
+ /* Got a packet(s). */
+#ifdef TC35815_NAPI
+ ret = tc35815_rx(dev, limit);
+#else
+ tc35815_rx(dev);
+ ret = 0;
+#endif
+ lp->lstats.rx_ints++;
+ }
+ if (status & Int_IntMacTx) {
+ /* Transmit complete. */
+ lp->lstats.tx_ints++;
+ tc35815_txdone(dev);
+ netif_wake_queue(dev);
+ ret = 0;
+ }
+ return ret;
}
/*
* The typical workload of the driver:
- * Handle the network interface interrupts.
+ * Handle the network interface interrupts.
*/
static irqreturn_t tc35815_interrupt(int irq, void *dev_id)
{
struct net_device *dev = dev_id;
- struct tc35815_regs *tr;
- struct tc35815_local *lp;
- int status, boguscount = 0;
- int handled = 0;
-
- if (dev == NULL) {
- printk(KERN_WARNING "%s: irq %d for unknown device.\n", cardname, irq);
- return IRQ_NONE;
- }
-
- tr = (struct tc35815_regs*)dev->base_addr;
- lp = dev->priv;
-
- do {
- status = tc_readl(&tr->Int_Src);
- if (status == 0)
- break;
- handled = 1;
- tc_writel(status, &tr->Int_Src); /* write to clear */
-
- /* Fatal errors... */
- if (status & FATAL_ERROR_INT) {
- tc35815_fatal_error_interrupt(dev, status);
- break;
- }
- /* recoverable errors */
- if (status & Int_IntFDAEx) {
- /* disable FDAEx int. (until we make rooms...) */
- tc_writel(tc_readl(&tr->Int_En) & ~Int_FDAExEn, &tr->Int_En);
- printk(KERN_WARNING
- "%s: Free Descriptor Area Exhausted (%#x).\n",
- dev->name, status);
- lp->stats.rx_dropped++;
- }
- if (status & Int_IntBLEx) {
- /* disable BLEx int. (until we make rooms...) */
- tc_writel(tc_readl(&tr->Int_En) & ~Int_BLExEn, &tr->Int_En);
- printk(KERN_WARNING
- "%s: Buffer List Exhausted (%#x).\n",
- dev->name, status);
- lp->stats.rx_dropped++;
- }
- if (status & Int_IntExBD) {
- printk(KERN_WARNING
- "%s: Excessive Buffer Descriptiors (%#x).\n",
- dev->name, status);
- lp->stats.rx_length_errors++;
- }
- /* normal notification */
- if (status & Int_IntMacRx) {
- /* Got a packet(s). */
- lp->lstats.rx_ints++;
- tc35815_rx(dev);
+ struct tc35815_regs __iomem *tr =
+ (struct tc35815_regs __iomem *)dev->base_addr;
+#ifdef TC35815_NAPI
+ u32 dmactl = tc_readl(&tr->DMA_Ctl);
+
+ if (!(dmactl & DMA_IntMask)) {
+ /* disable interrupts */
+ tc_writel(dmactl | DMA_IntMask, &tr->DMA_Ctl);
+ if (netif_rx_schedule_prep(dev))
+ __netif_rx_schedule(dev);
+ else {
+ printk(KERN_ERR "%s: interrupt taken in poll\n",
+ dev->name);
+ BUG();
}
- if (status & Int_IntMacTx) {
- lp->lstats.tx_ints++;
- tc35815_txdone(dev);
- }
- } while (++boguscount < 20) ;
+ (void)tc_readl(&tr->Int_Src); /* flush */
+ return IRQ_HANDLED;
+ }
+ return IRQ_NONE;
+#else
+ struct tc35815_local *lp = dev->priv;
+ int handled;
+ u32 status;
+
+ spin_lock(&lp->lock);
+ status = tc_readl(&tr->Int_Src);
+ tc_writel(status, &tr->Int_Src); /* write to clear */
+ handled = tc35815_do_interrupt(dev, status);
+ (void)tc_readl(&tr->Int_Src); /* flush */
+ spin_unlock(&lp->lock);
+ return IRQ_RETVAL(handled >= 0);
+#endif /* TC35815_NAPI */
+}
- return IRQ_RETVAL(handled);
+#ifdef CONFIG_NET_POLL_CONTROLLER
+static void tc35815_poll_controller(struct net_device *dev)
+{
+ disable_irq(dev->irq);
+ tc35815_interrupt(dev->irq, dev);
+ enable_irq(dev->irq);
}
+#endif
/* We have a good packet(s), get it/them out of the buffers. */
+#ifdef TC35815_NAPI
+static int
+tc35815_rx(struct net_device *dev, int limit)
+#else
static void
tc35815_rx(struct net_device *dev)
+#endif
{
struct tc35815_local *lp = dev->priv;
- struct tc35815_regs *tr = (struct tc35815_regs*)dev->base_addr;
unsigned int fdctl;
int i;
int buf_free_count = 0;
int fd_free_count = 0;
+#ifdef TC35815_NAPI
+ int received = 0;
+#endif
while (!((fdctl = le32_to_cpu(lp->rfd_cur->fd.FDCtl)) & FD_CownsFD)) {
int status = le32_to_cpu(lp->rfd_cur->fd.FDStat);
int pkt_len = fdctl & FD_FDLength_MASK;
- struct RxFD *next_rfd;
int bd_count = (fdctl & FD_BDCnt_MASK) >> FD_BDCnt_SHIFT;
+#ifdef DEBUG
+ struct RxFD *next_rfd;
+#endif
+#if (RX_CTL_CMD & Rx_StripCRC) == 0
+ pkt_len -= 4;
+#endif
- if (tc35815_debug > 2)
+ if (netif_msg_rx_status(lp))
dump_rxfd(lp->rfd_cur);
if (status & Rx_Good) {
- /* Malloc up new buffer. */
struct sk_buff *skb;
unsigned char *data;
- int cur_bd, offset;
-
- lp->stats.rx_bytes += pkt_len;
+ int cur_bd;
+#ifdef TC35815_USE_PACKEDBUFFER
+ int offset;
+#endif
+#ifdef TC35815_NAPI
+ if (--limit < 0)
+ break;
+#endif
+#ifdef TC35815_USE_PACKEDBUFFER
+ BUG_ON(bd_count > 2);
skb = dev_alloc_skb(pkt_len + 2); /* +2: for reserve */
if (skb == NULL) {
printk(KERN_NOTICE "%s: Memory squeeze, dropping packet.\n",
@@ -1155,25 +1541,64 @@ tc35815_rx(struct net_device *dev)
while (offset < pkt_len && cur_bd < bd_count) {
int len = le32_to_cpu(lp->rfd_cur->bd[cur_bd].BDCtl) &
BD_BuffLength_MASK;
- void *rxbuf =
- bus_to_virt(le32_to_cpu(lp->rfd_cur->bd[cur_bd].BuffData));
-#ifdef __mips__
- dma_cache_inv((unsigned long)rxbuf, len);
+ dma_addr_t dma = le32_to_cpu(lp->rfd_cur->bd[cur_bd].BuffData);
+ void *rxbuf = rxbuf_bus_to_virt(lp, dma);
+ if (offset + len > pkt_len)
+ len = pkt_len - offset;
+#ifdef TC35815_DMA_SYNC_ONDEMAND
+ pci_dma_sync_single_for_cpu(lp->pci_dev,
+ dma, len,
+ PCI_DMA_FROMDEVICE);
#endif
memcpy(data + offset, rxbuf, len);
offset += len;
cur_bd++;
}
-#if 0
- print_buf(data,pkt_len);
+#else /* TC35815_USE_PACKEDBUFFER */
+ BUG_ON(bd_count > 1);
+ cur_bd = (le32_to_cpu(lp->rfd_cur->bd[0].BDCtl)
+ & BD_RxBDID_MASK) >> BD_RxBDID_SHIFT;
+#ifdef DEBUG
+ if (cur_bd >= RX_BUF_NUM) {
+ printk("%s: invalid BDID.\n", dev->name);
+ panic_queues(dev);
+ }
+ BUG_ON(lp->rx_skbs[cur_bd].skb_dma !=
+ (le32_to_cpu(lp->rfd_cur->bd[0].BuffData) & ~3));
+ if (!lp->rx_skbs[cur_bd].skb) {
+ printk("%s: NULL skb.\n", dev->name);
+ panic_queues(dev);
+ }
+#else
+ BUG_ON(cur_bd >= RX_BUF_NUM);
#endif
- if (tc35815_debug > 3)
+ skb = lp->rx_skbs[cur_bd].skb;
+ prefetch(skb->data);
+ lp->rx_skbs[cur_bd].skb = NULL;
+ lp->fbl_count--;
+ pci_unmap_single(lp->pci_dev,
+ lp->rx_skbs[cur_bd].skb_dma,
+ RX_BUF_SIZE, PCI_DMA_FROMDEVICE);
+ if (!HAVE_DMA_RXALIGN(lp))
+ memmove(skb->data, skb->data - 2, pkt_len);
+ data = skb_put(skb, pkt_len);
+#endif /* TC35815_USE_PACKEDBUFFER */
+ if (netif_msg_pktdata(lp))
print_eth(data);
skb->protocol = eth_type_trans(skb, dev);
+#ifdef TC35815_NAPI
+ netif_receive_skb(skb);
+ received++;
+#else
netif_rx(skb);
+#endif
+ dev->last_rx = jiffies;
lp->stats.rx_packets++;
+ lp->stats.rx_bytes += pkt_len;
} else {
lp->stats.rx_errors++;
+ printk(KERN_DEBUG "%s: Rx error (status %x)\n",
+ dev->name, status & Rx_Stat_Mask);
/* WORKAROUND: LongErr and CRCErr means Overflow. */
if ((status & Rx_LongErr) && (status & Rx_CRCErr)) {
status &= ~(Rx_LongErr|Rx_CRCErr);
@@ -1190,63 +1615,150 @@ tc35815_rx(struct net_device *dev)
int bdctl = le32_to_cpu(lp->rfd_cur->bd[bd_count - 1].BDCtl);
unsigned char id =
(bdctl & BD_RxBDID_MASK) >> BD_RxBDID_SHIFT;
- if (id >= RX_BUF_PAGES) {
+#ifdef DEBUG
+ if (id >= RX_BUF_NUM) {
printk("%s: invalid BDID.\n", dev->name);
panic_queues(dev);
}
+#else
+ BUG_ON(id >= RX_BUF_NUM);
+#endif
/* free old buffers */
- while (lp->fbl_curid != id) {
- bdctl = le32_to_cpu(lp->fbl_ptr->bd[lp->fbl_curid].BDCtl);
+#ifdef TC35815_USE_PACKEDBUFFER
+ while (lp->fbl_curid != id)
+#else
+ while (lp->fbl_count < RX_BUF_NUM)
+#endif
+ {
+#ifdef TC35815_USE_PACKEDBUFFER
+ unsigned char curid = lp->fbl_curid;
+#else
+ unsigned char curid =
+ (id + 1 + lp->fbl_count) % RX_BUF_NUM;
+#endif
+ struct BDesc *bd = &lp->fbl_ptr->bd[curid];
+#ifdef DEBUG
+ bdctl = le32_to_cpu(bd->BDCtl);
if (bdctl & BD_CownsBD) {
printk("%s: Freeing invalid BD.\n",
dev->name);
panic_queues(dev);
}
+#endif
/* pass BD to controler */
+#ifndef TC35815_USE_PACKEDBUFFER
+ if (!lp->rx_skbs[curid].skb) {
+ lp->rx_skbs[curid].skb =
+ alloc_rxbuf_skb(dev,
+ lp->pci_dev,
+ &lp->rx_skbs[curid].skb_dma);
+ if (!lp->rx_skbs[curid].skb)
+ break; /* try on next reception */
+ bd->BuffData = cpu_to_le32(lp->rx_skbs[curid].skb_dma);
+ }
+#endif /* TC35815_USE_PACKEDBUFFER */
/* Note: BDLength was modified by chip. */
- lp->fbl_ptr->bd[lp->fbl_curid].BDCtl =
- cpu_to_le32(BD_CownsBD |
- (lp->fbl_curid << BD_RxBDID_SHIFT) |
- PAGE_SIZE);
- lp->fbl_curid =
- (lp->fbl_curid + 1) % RX_BUF_PAGES;
- if (tc35815_debug > 2) {
+ bd->BDCtl = cpu_to_le32(BD_CownsBD |
+ (curid << BD_RxBDID_SHIFT) |
+ RX_BUF_SIZE);
+#ifdef TC35815_USE_PACKEDBUFFER
+ lp->fbl_curid = (curid + 1) % RX_BUF_NUM;
+ if (netif_msg_rx_status(lp)) {
printk("%s: Entering new FBD %d\n",
dev->name, lp->fbl_curid);
dump_frfd(lp->fbl_ptr);
}
+#else
+ lp->fbl_count++;
+#endif
buf_free_count++;
}
}
/* put RxFD back to controller */
- next_rfd = bus_to_virt(le32_to_cpu(lp->rfd_cur->fd.FDNext));
-#ifdef __mips__
- next_rfd = (struct RxFD *)vtonocache(next_rfd);
-#endif
+#ifdef DEBUG
+ next_rfd = fd_bus_to_virt(lp,
+ le32_to_cpu(lp->rfd_cur->fd.FDNext));
if (next_rfd < lp->rfd_base || next_rfd > lp->rfd_limit) {
printk("%s: RxFD FDNext invalid.\n", dev->name);
panic_queues(dev);
}
+#endif
for (i = 0; i < (bd_count + 1) / 2 + 1; i++) {
/* pass FD to controler */
- lp->rfd_cur->fd.FDNext = cpu_to_le32(0xdeaddead); /* for debug */
+#ifdef DEBUG
+ lp->rfd_cur->fd.FDNext = cpu_to_le32(0xdeaddead);
+#else
+ lp->rfd_cur->fd.FDNext = cpu_to_le32(FD_Next_EOL);
+#endif
lp->rfd_cur->fd.FDCtl = cpu_to_le32(FD_CownsFD);
lp->rfd_cur++;
fd_free_count++;
}
-
- lp->rfd_cur = next_rfd;
+ if (lp->rfd_cur > lp->rfd_limit)
+ lp->rfd_cur = lp->rfd_base;
+#ifdef DEBUG
+ if (lp->rfd_cur != next_rfd)
+ printk("rfd_cur = %p, next_rfd %p\n",
+ lp->rfd_cur, next_rfd);
+#endif
}
/* re-enable BL/FDA Exhaust interrupts. */
if (fd_free_count) {
- tc_writel(tc_readl(&tr->Int_En) | Int_FDAExEn, &tr->Int_En);
+ struct tc35815_regs __iomem *tr =
+ (struct tc35815_regs __iomem *)dev->base_addr;
+ u32 en, en_old = tc_readl(&tr->Int_En);
+ en = en_old | Int_FDAExEn;
if (buf_free_count)
- tc_writel(tc_readl(&tr->Int_En) | Int_BLExEn, &tr->Int_En);
+ en |= Int_BLExEn;
+ if (en != en_old)
+ tc_writel(en, &tr->Int_En);
}
+#ifdef TC35815_NAPI
+ return received;
+#endif
}
+#ifdef TC35815_NAPI
+static int
+tc35815_poll(struct net_device *dev, int *budget)
+{
+ struct tc35815_local *lp = dev->priv;
+ struct tc35815_regs __iomem *tr =
+ (struct tc35815_regs __iomem *)dev->base_addr;
+ int limit = min(*budget, dev->quota);
+ int received = 0, handled;
+ u32 status;
+
+ spin_lock(&lp->lock);
+ status = tc_readl(&tr->Int_Src);
+ do {
+ tc_writel(status, &tr->Int_Src); /* write to clear */
+
+ handled = tc35815_do_interrupt(dev, status, limit);
+ if (handled >= 0) {
+ received += handled;
+ limit -= handled;
+ if (limit <= 0)
+ break;
+ }
+ status = tc_readl(&tr->Int_Src);
+ } while (status);
+ spin_unlock(&lp->lock);
+
+ dev->quota -= received;
+ *budget -= received;
+ if (limit <= 0)
+ return 1;
+
+ netif_rx_complete(dev);
+ /* enable interrupts */
+ tc_writel(tc_readl(&tr->DMA_Ctl) & ~DMA_IntMask, &tr->DMA_Ctl);
+ return 0;
+}
+#endif
+
#ifdef NO_CHECK_CARRIER
#define TX_STA_ERR (Tx_ExColl|Tx_Under|Tx_Defer|Tx_LateColl|Tx_TxPar|Tx_SQErr)
#else
@@ -1265,9 +1777,17 @@ tc35815_check_tx_stat(struct net_device
if (status & Tx_TxColl_MASK)
lp->stats.collisions += status & Tx_TxColl_MASK;
+#ifndef NO_CHECK_CARRIER
+ /* TX4939 does not have NCarr */
+ if (lp->boardtype == TC35815_TX4939)
+ status &= ~Tx_NCarr;
+#ifdef WORKAROUND_LOSTCAR
/* WORKAROUND: ignore LostCrS in full duplex operation */
- if (lp->fullduplex)
+ if ((lp->timer_state != asleep && lp->timer_state != lcheck)
+ || lp->fullduplex)
status &= ~Tx_NCarr;
+#endif
+#endif
if (!(status & TX_STA_ERR)) {
/* no error. */
@@ -1283,6 +1803,15 @@ tc35815_check_tx_stat(struct net_device
if (status & Tx_Under) {
lp->stats.tx_fifo_errors++;
msg = "Tx FIFO Underrun.";
+ if (lp->lstats.tx_underrun < TX_THRESHOLD_KEEP_LIMIT) {
+ lp->lstats.tx_underrun++;
+ if (lp->lstats.tx_underrun >= TX_THRESHOLD_KEEP_LIMIT) {
+ struct tc35815_regs __iomem *tr =
+ (struct tc35815_regs __iomem *)dev->base_addr;
+ tc_writel(TX_THRESHOLD_MAX, &tr->TxThrsh);
+ msg = "Tx FIFO Underrun.Change Tx threshold to max.";
+ }
+ }
}
if (status & Tx_Defer) {
lp->stats.tx_fifo_errors++;
@@ -1306,18 +1835,19 @@ tc35815_check_tx_stat(struct net_device
lp->stats.tx_heartbeat_errors++;
msg = "Signal Quality Error.";
}
- if (msg)
+ if (msg && netif_msg_tx_err(lp))
printk(KERN_WARNING "%s: %s (%#x)\n", dev->name, msg, status);
}
+/* This handles TX complete events posted by the device
+ * via interrupts.
+ */
static void
tc35815_txdone(struct net_device *dev)
{
struct tc35815_local *lp = dev->priv;
- struct tc35815_regs *tr = (struct tc35815_regs*)dev->base_addr;
struct TxFD *txfd;
unsigned int fdctl;
- int num_done = 0;
txfd = &lp->tfd_base[lp->tfd_end];
while (lp->tfd_start != lp->tfd_end &&
@@ -1325,38 +1855,61 @@ tc35815_txdone(struct net_device *dev)
int status = le32_to_cpu(txfd->fd.FDStat);
struct sk_buff *skb;
unsigned long fdnext = le32_to_cpu(txfd->fd.FDNext);
+ u32 fdsystem = le32_to_cpu(txfd->fd.FDSystem);
- if (tc35815_debug > 2) {
+ if (netif_msg_tx_done(lp)) {
printk("%s: complete TxFD.\n", dev->name);
dump_txfd(txfd);
}
tc35815_check_tx_stat(dev, status);
- skb = (struct sk_buff *)le32_to_cpu(txfd->fd.FDSystem);
+ skb = fdsystem != 0xffffffff ?
+ lp->tx_skbs[fdsystem].skb : NULL;
+#ifdef DEBUG
+ if (lp->tx_skbs[lp->tfd_end].skb != skb) {
+ printk("%s: tx_skbs mismatch.\n", dev->name);
+ panic_queues(dev);
+ }
+#else
+ BUG_ON(lp->tx_skbs[lp->tfd_end].skb != skb);
+#endif
if (skb) {
+ lp->stats.tx_bytes += skb->len;
+ pci_unmap_single(lp->pci_dev, lp->tx_skbs[lp->tfd_end].skb_dma, skb->len, PCI_DMA_TODEVICE);
+ lp->tx_skbs[lp->tfd_end].skb = NULL;
+ lp->tx_skbs[lp->tfd_end].skb_dma = 0;
+#ifdef TC35815_NAPI
dev_kfree_skb_any(skb);
+#else
+ dev_kfree_skb_irq(skb);
+#endif
}
- txfd->fd.FDSystem = cpu_to_le32(0);
+ txfd->fd.FDSystem = cpu_to_le32(0xffffffff);
- num_done++;
lp->tfd_end = (lp->tfd_end + 1) % TX_FD_NUM;
txfd = &lp->tfd_base[lp->tfd_end];
- if ((fdnext & ~FD_Next_EOL) != virt_to_bus(txfd)) {
+#ifdef DEBUG
+ if ((fdnext & ~FD_Next_EOL) != fd_virt_to_bus(lp, txfd)) {
printk("%s: TxFD FDNext invalid.\n", dev->name);
panic_queues(dev);
}
+#endif
if (fdnext & FD_Next_EOL) {
/* DMA Transmitter has been stopping... */
if (lp->tfd_end != lp->tfd_start) {
+ struct tc35815_regs __iomem *tr =
+ (struct tc35815_regs __iomem *)dev->base_addr;
int head = (lp->tfd_start + TX_FD_NUM - 1) % TX_FD_NUM;
struct TxFD* txhead = &lp->tfd_base[head];
int qlen = (lp->tfd_start + TX_FD_NUM
- lp->tfd_end) % TX_FD_NUM;
+#ifdef DEBUG
if (!(le32_to_cpu(txfd->fd.FDCtl) & FD_CownsFD)) {
printk("%s: TxFD FDCtl invalid.\n", dev->name);
panic_queues(dev);
}
+#endif
/* log max queue length */
if (lp->lstats.max_tx_qlen < qlen)
lp->lstats.max_tx_qlen = qlen;
@@ -1367,21 +1920,23 @@ tc35815_txdone(struct net_device *dev)
#ifdef GATHER_TXINT
txhead->fd.FDCtl |= cpu_to_le32(FD_FrmOpt_IntTx);
#endif
- if (tc35815_debug > 2) {
+ if (netif_msg_tx_queued(lp)) {
printk("%s: start TxFD on queue.\n",
dev->name);
dump_txfd(txfd);
}
- tc_writel(virt_to_bus(txfd), &tr->TxFrmPtr);
+ tc_writel(fd_virt_to_bus(lp, txfd), &tr->TxFrmPtr);
}
break;
}
}
- if (num_done > 0 && lp->tbusy) {
- lp->tbusy = 0;
- netif_start_queue(dev);
- }
+ /* If we had stopped the queue due to a "tx full"
+ * condition, and space has now been made available,
+ * wake up the queue.
+ */
+ if (netif_queue_stopped(dev) && ! tc35815_tx_full(dev))
+ netif_wake_queue(dev);
}
/* The inverse routine to tc35815_open(). */
@@ -1389,18 +1944,18 @@ static int
tc35815_close(struct net_device *dev)
{
struct tc35815_local *lp = dev->priv;
-
- lp->tbusy = 1;
netif_stop_queue(dev);
/* Flush the Tx and disable Rx here. */
+ del_timer(&lp->timer); /* Kill if running */
tc35815_chip_reset(dev);
free_irq(dev->irq, dev);
tc35815_free_queues(dev);
return 0;
+
}
/*
@@ -1410,29 +1965,29 @@ tc35815_close(struct net_device *dev)
static struct net_device_stats *tc35815_get_stats(struct net_device *dev)
{
struct tc35815_local *lp = dev->priv;
- struct tc35815_regs *tr = (struct tc35815_regs*)dev->base_addr;
- unsigned long flags;
-
+ struct tc35815_regs __iomem *tr =
+ (struct tc35815_regs __iomem *)dev->base_addr;
if (netif_running(dev)) {
- spin_lock_irqsave(&lp->lock, flags);
/* Update the statistics from the device registers. */
lp->stats.rx_missed_errors = tc_readl(&tr->Miss_Cnt);
- spin_unlock_irqrestore(&lp->lock, flags);
}
return &lp->stats;
}
-static void tc35815_set_cam_entry(struct tc35815_regs *tr, int index, unsigned char *addr)
+static void tc35815_set_cam_entry(struct net_device *dev, int index, unsigned char *addr)
{
+ struct tc35815_local *lp = dev->priv;
+ struct tc35815_regs __iomem *tr =
+ (struct tc35815_regs __iomem *)dev->base_addr;
int cam_index = index * 6;
- unsigned long cam_data;
- unsigned long saved_addr;
+ u32 cam_data;
+ u32 saved_addr;
saved_addr = tc_readl(&tr->CAM_Adr);
- if (tc35815_debug > 1) {
+ if (netif_msg_hw(lp)) {
int i;
- printk(KERN_DEBUG "%s: CAM %d:", cardname, index);
+ printk(KERN_DEBUG "%s: CAM %d:", dev->name, index);
for (i = 0; i < 6; i++)
printk(" %02x", addr[i]);
printk("\n");
@@ -1459,14 +2014,6 @@ static void tc35815_set_cam_entry(struct
tc_writel(cam_data, &tr->CAM_Data);
}
- if (tc35815_debug > 2) {
- int i;
- for (i = cam_index / 4; i < cam_index / 4 + 2; i++) {
- tc_writel(i * 4, &tr->CAM_Adr);
- printk("CAM 0x%x: %08lx",
- i * 4, tc_readl(&tr->CAM_Data));
- }
- }
tc_writel(saved_addr, &tr->CAM_Adr);
}
@@ -1481,10 +2028,19 @@ static void tc35815_set_cam_entry(struct
static void
tc35815_set_multicast_list(struct net_device *dev)
{
- struct tc35815_regs *tr = (struct tc35815_regs*)dev->base_addr;
+ struct tc35815_regs __iomem *tr =
+ (struct tc35815_regs __iomem *)dev->base_addr;
if (dev->flags&IFF_PROMISC)
{
+#ifdef WORKAROUND_100HALF_PROMISC
+ /* With some (all?) 100MHalf HUB, controller will hang
+ * if we enabled promiscuous mode before linkup... */
+ struct tc35815_local *lp = dev->priv;
+ int pid = lp->phy_addr;
+ if (!(tc_mdio_read(dev, pid, MII_BMSR) & BMSR_LSTATUS))
+ return;
+#endif
/* Enable promiscuous mode */
tc_writel(CAM_CompEn | CAM_BroadAcc | CAM_GroupAcc | CAM_StationAcc, &tr->CAM_Ctl);
}
@@ -1506,7 +2062,7 @@ tc35815_set_multicast_list(struct net_de
if (!cur_addr)
break;
/* entry 0,1 is reserved. */
- tc35815_set_cam_entry(tr, i + 2, cur_addr->dmi_addr);
+ tc35815_set_cam_entry(dev, i + 2, cur_addr->dmi_addr);
ena_bits |= CAM_Ena_Bit(i + 2);
}
tc_writel(ena_bits, &tr->CAM_Ena);
@@ -1518,122 +2074,753 @@ tc35815_set_multicast_list(struct net_de
}
}
-static unsigned long tc_phy_read(struct net_device *dev, struct tc35815_regs *tr, int phy, int phy_reg)
+static void tc35815_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
{
struct tc35815_local *lp = dev->priv;
- unsigned long data;
- unsigned long flags;
+ strcpy(info->driver, MODNAME);
+ strcpy(info->version, DRV_VERSION);
+ strcpy(info->bus_info, pci_name(lp->pci_dev));
+}
- spin_lock_irqsave(&lp->lock, flags);
+static int tc35815_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
+{
+ struct tc35815_local *lp = dev->priv;
+ spin_lock_irq(&lp->lock);
+ mii_ethtool_gset(&lp->mii, cmd);
+ spin_unlock_irq(&lp->lock);
+ return 0;
+}
- tc_writel(MD_CA_Busy | (phy << 5) | phy_reg, &tr->MD_CA);
+static int tc35815_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
+{
+ struct tc35815_local *lp = dev->priv;
+ int rc;
+#if 1 /* use our negotiation method... */
+ /* Verify the settings we care about. */
+ if (cmd->autoneg != AUTONEG_ENABLE &&
+ cmd->autoneg != AUTONEG_DISABLE)
+ return -EINVAL;
+ if (cmd->autoneg == AUTONEG_DISABLE &&
+ ((cmd->speed != SPEED_100 &&
+ cmd->speed != SPEED_10) ||
+ (cmd->duplex != DUPLEX_HALF &&
+ cmd->duplex != DUPLEX_FULL)))
+ return -EINVAL;
+
+ /* Ok, do it to it. */
+ spin_lock_irq(&lp->lock);
+ del_timer(&lp->timer);
+ tc35815_start_auto_negotiation(dev, cmd);
+ spin_unlock_irq(&lp->lock);
+ rc = 0;
+#else
+ spin_lock_irq(&lp->lock);
+ rc = mii_ethtool_sset(&lp->mii, cmd);
+ spin_unlock_irq(&lp->lock);
+#endif
+ return rc;
+}
+
+static int tc35815_nway_reset(struct net_device *dev)
+{
+ struct tc35815_local *lp = dev->priv;
+ int rc;
+ spin_lock_irq(&lp->lock);
+ rc = mii_nway_restart(&lp->mii);
+ spin_unlock_irq(&lp->lock);
+ return rc;
+}
+
+static u32 tc35815_get_link(struct net_device *dev)
+{
+ struct tc35815_local *lp = dev->priv;
+ int rc;
+ spin_lock_irq(&lp->lock);
+ rc = mii_link_ok(&lp->mii);
+ spin_unlock_irq(&lp->lock);
+ return rc;
+}
+
+static u32 tc35815_get_msglevel(struct net_device *dev)
+{
+ struct tc35815_local *lp = dev->priv;
+ return lp->msg_enable;
+}
+
+static void tc35815_set_msglevel(struct net_device *dev, u32 datum)
+{
+ struct tc35815_local *lp = dev->priv;
+ lp->msg_enable = datum;
+}
+
+static int tc35815_get_stats_count(struct net_device *dev)
+{
+ struct tc35815_local *lp = dev->priv;
+ return sizeof(lp->lstats) / sizeof(int);
+}
+
+static void tc35815_get_ethtool_stats(struct net_device *dev, struct ethtool_stats *stats, u64 *data)
+{
+ struct tc35815_local *lp = dev->priv;
+ data[0] = lp->lstats.max_tx_qlen;
+ data[1] = lp->lstats.tx_ints;
+ data[2] = lp->lstats.rx_ints;
+ data[3] = lp->lstats.tx_underrun;
+}
+
+static struct {
+ const char str[ETH_GSTRING_LEN];
+} ethtool_stats_keys[] = {
+ { "max_tx_qlen" },
+ { "tx_ints" },
+ { "rx_ints" },
+ { "tx_underrun" },
+};
+
+static void tc35815_get_strings(struct net_device *dev, u32 stringset, u8 *data)
+{
+ memcpy(data, ethtool_stats_keys, sizeof(ethtool_stats_keys));
+}
+
+static const struct ethtool_ops tc35815_ethtool_ops = {
+ .get_drvinfo = tc35815_get_drvinfo,
+ .get_settings = tc35815_get_settings,
+ .set_settings = tc35815_set_settings,
+ .nway_reset = tc35815_nway_reset,
+ .get_link = tc35815_get_link,
+ .get_msglevel = tc35815_get_msglevel,
+ .set_msglevel = tc35815_set_msglevel,
+ .get_strings = tc35815_get_strings,
+ .get_stats_count = tc35815_get_stats_count,
+ .get_ethtool_stats = tc35815_get_ethtool_stats,
+ .get_perm_addr = ethtool_op_get_perm_addr,
+};
+
+static int tc35815_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
+{
+ struct tc35815_local *lp = dev->priv;
+ int rc;
+
+ if (!netif_running(dev))
+ return -EINVAL;
+
+ spin_lock_irq(&lp->lock);
+ rc = generic_mii_ioctl(&lp->mii, if_mii(rq), cmd, NULL);
+ spin_unlock_irq(&lp->lock);
+
+ return rc;
+}
+
+static int tc_mdio_read(struct net_device *dev, int phy_id, int location)
+{
+ struct tc35815_regs __iomem *tr =
+ (struct tc35815_regs __iomem *)dev->base_addr;
+ u32 data;
+ tc_writel(MD_CA_Busy | (phy_id << 5) | location, &tr->MD_CA);
while (tc_readl(&tr->MD_CA) & MD_CA_Busy)
;
data = tc_readl(&tr->MD_Data);
- spin_unlock_irqrestore(&lp->lock, flags);
- return data;
+ return data & 0xffff;
+}
+
+static void tc_mdio_write(struct net_device *dev, int phy_id, int location,
+ int val)
+{
+ struct tc35815_regs __iomem *tr =
+ (struct tc35815_regs __iomem *)dev->base_addr;
+ tc_writel(val, &tr->MD_Data);
+ tc_writel(MD_CA_Busy | MD_CA_Wr | (phy_id << 5) | location, &tr->MD_CA);
+ while (tc_readl(&tr->MD_CA) & MD_CA_Busy)
+ ;
}
-static void tc_phy_write(struct net_device *dev, unsigned long d, struct tc35815_regs *tr, int phy, int phy_reg)
+/* Auto negotiation. The scheme is very simple. We have a timer routine
+ * that keeps watching the auto negotiation process as it progresses.
+ * The DP83840 is first told to start doing it's thing, we set up the time
+ * and place the timer state machine in it's initial state.
+ *
+ * Here the timer peeks at the DP83840 status registers at each click to see
+ * if the auto negotiation has completed, we assume here that the DP83840 PHY
+ * will time out at some point and just tell us what (didn't) happen. For
+ * complete coverage we only allow so many of the ticks at this level to run,
+ * when this has expired we print a warning message and try another strategy.
+ * This "other" strategy is to force the interface into various speed/duplex
+ * configurations and we stop when we see a link-up condition before the
+ * maximum number of "peek" ticks have occurred.
+ *
+ * Once a valid link status has been detected we configure the BigMAC and
+ * the rest of the Happy Meal to speak the most efficient protocol we could
+ * get a clean link for. The priority for link configurations, highest first
+ * is:
+ * 100 Base-T Full Duplex
+ * 100 Base-T Half Duplex
+ * 10 Base-T Full Duplex
+ * 10 Base-T Half Duplex
+ *
+ * We start a new timer now, after a successful auto negotiation status has
+ * been detected. This timer just waits for the link-up bit to get set in
+ * the BMCR of the DP83840. When this occurs we print a kernel log message
+ * describing the link type in use and the fact that it is up.
+ *
+ * If a fatal error of some sort is signalled and detected in the interrupt
+ * service routine, and the chip is reset, or the link is ifconfig'd down
+ * and then back up, this entire process repeats itself all over again.
+ */
+/* Note: Above comments are come from sunhme driver. */
+
+static int tc35815_try_next_permutation(struct net_device *dev)
{
struct tc35815_local *lp = dev->priv;
- unsigned long flags;
+ int pid = lp->phy_addr;
+ unsigned short bmcr;
- spin_lock_irqsave(&lp->lock, flags);
+ bmcr = tc_mdio_read(dev, pid, MII_BMCR);
- tc_writel(d, &tr->MD_Data);
- tc_writel(MD_CA_Busy | MD_CA_Wr | (phy << 5) | phy_reg, &tr->MD_CA);
- while (tc_readl(&tr->MD_CA) & MD_CA_Busy)
- ;
- spin_unlock_irqrestore(&lp->lock, flags);
+ /* Downgrade from full to half duplex. Only possible via ethtool. */
+ if (bmcr & BMCR_FULLDPLX) {
+ bmcr &= ~BMCR_FULLDPLX;
+ printk(KERN_DEBUG "%s: try next permutation (BMCR %x)\n", dev->name, bmcr);
+ tc_mdio_write(dev, pid, MII_BMCR, bmcr);
+ return 0;
+ }
+
+ /* Downgrade from 100 to 10. */
+ if (bmcr & BMCR_SPEED100) {
+ bmcr &= ~BMCR_SPEED100;
+ printk(KERN_DEBUG "%s: try next permutation (BMCR %x)\n", dev->name, bmcr);
+ tc_mdio_write(dev, pid, MII_BMCR, bmcr);
+ return 0;
+ }
+
+ /* We've tried everything. */
+ return -1;
}
-static void tc35815_phy_chip_init(struct net_device *dev)
+static void
+tc35815_display_link_mode(struct net_device *dev)
{
struct tc35815_local *lp = dev->priv;
- struct tc35815_regs *tr = (struct tc35815_regs*)dev->base_addr;
- static int first = 1;
- unsigned short ctl;
-
- if (first) {
- unsigned short id0, id1;
- int count;
- first = 0;
-
- /* first data written to the PHY will be an ID number */
- tc_phy_write(dev, 0, tr, 0, MII_CONTROL); /* ID:0 */
-#if 0
- tc_phy_write(dev, MIICNTL_RESET, tr, 0, MII_CONTROL);
- printk(KERN_INFO "%s: Resetting PHY...", dev->name);
- while (tc_phy_read(dev, tr, 0, MII_CONTROL) & MIICNTL_RESET)
- ;
- printk("\n");
- tc_phy_write(dev, MIICNTL_AUTO|MIICNTL_SPEED|MIICNTL_FDX, tr, 0,
- MII_CONTROL);
-#endif
- id0 = tc_phy_read(dev, tr, 0, MII_PHY_ID0);
- id1 = tc_phy_read(dev, tr, 0, MII_PHY_ID1);
- printk(KERN_DEBUG "%s: PHY ID %04x %04x\n", dev->name,
- id0, id1);
- if (lp->option & TC35815_OPT_10M) {
- lp->linkspeed = 10;
- lp->fullduplex = (lp->option & TC35815_OPT_FULLDUP) != 0;
- } else if (lp->option & TC35815_OPT_100M) {
- lp->linkspeed = 100;
- lp->fullduplex = (lp->option & TC35815_OPT_FULLDUP) != 0;
+ int pid = lp->phy_addr;
+ unsigned short lpa, bmcr;
+ char *speed = "", *duplex = "";
+
+ lpa = tc_mdio_read(dev, pid, MII_LPA);
+ bmcr = tc_mdio_read(dev, pid, MII_BMCR);
+ if (options.speed ? (bmcr & BMCR_SPEED100) : (lpa & (LPA_100HALF | LPA_100FULL)))
+ speed = "100Mb/s";
+ else
+ speed = "10Mb/s";
+ if (options.duplex ? (bmcr & BMCR_FULLDPLX) : (lpa & (LPA_100FULL | LPA_10FULL)))
+ duplex = "Full Duplex";
+ else
+ duplex = "Half Duplex";
+
+ if (netif_msg_link(lp))
+ printk(KERN_INFO "%s: Link is up at %s, %s.\n",
+ dev->name, speed, duplex);
+ printk(KERN_DEBUG "%s: MII BMCR %04x BMSR %04x LPA %04x\n",
+ dev->name,
+ bmcr, tc_mdio_read(dev, pid, MII_BMSR), lpa);
+}
+
+static void tc35815_display_forced_link_mode(struct net_device *dev)
+{
+ struct tc35815_local *lp = dev->priv;
+ int pid = lp->phy_addr;
+ unsigned short bmcr;
+ char *speed = "", *duplex = "";
+
+ bmcr = tc_mdio_read(dev, pid, MII_BMCR);
+ if (bmcr & BMCR_SPEED100)
+ speed = "100Mb/s";
+ else
+ speed = "10Mb/s";
+ if (bmcr & BMCR_FULLDPLX)
+ duplex = "Full Duplex.\n";
+ else
+ duplex = "Half Duplex.\n";
+
+ if (netif_msg_link(lp))
+ printk(KERN_INFO "%s: Link has been forced up at %s, %s",
+ dev->name, speed, duplex);
+}
+
+static void tc35815_set_link_modes(struct net_device *dev)
+{
+ struct tc35815_local *lp = dev->priv;
+ struct tc35815_regs __iomem *tr =
+ (struct tc35815_regs __iomem *)dev->base_addr;
+ int pid = lp->phy_addr;
+ unsigned short bmcr, lpa;
+ int speed;
+
+ if (lp->timer_state == arbwait) {
+ lpa = tc_mdio_read(dev, pid, MII_LPA);
+ bmcr = tc_mdio_read(dev, pid, MII_BMCR);
+ printk(KERN_DEBUG "%s: MII BMCR %04x BMSR %04x LPA %04x\n",
+ dev->name,
+ bmcr, tc_mdio_read(dev, pid, MII_BMSR), lpa);
+ if (!(lpa & (LPA_10HALF | LPA_10FULL |
+ LPA_100HALF | LPA_100FULL))) {
+ /* fall back to 10HALF */
+ printk(KERN_INFO "%s: bad ability %04x - falling back to 10HD.\n",
+ dev->name, lpa);
+ lpa = LPA_10HALF;
+ }
+ if (options.duplex ? (bmcr & BMCR_FULLDPLX) : (lpa & (LPA_100FULL | LPA_10FULL)))
+ lp->fullduplex = 1;
+ else
+ lp->fullduplex = 0;
+ if (options.speed ? (bmcr & BMCR_SPEED100) : (lpa & (LPA_100HALF | LPA_100FULL)))
+ speed = 100;
+ else
+ speed = 10;
+ } else {
+ /* Forcing a link mode. */
+ bmcr = tc_mdio_read(dev, pid, MII_BMCR);
+ if (bmcr & BMCR_FULLDPLX)
+ lp->fullduplex = 1;
+ else
+ lp->fullduplex = 0;
+ if (bmcr & BMCR_SPEED100)
+ speed = 100;
+ else
+ speed = 10;
+ }
+
+ tc_writel(tc_readl(&tr->MAC_Ctl) | MAC_HaltReq, &tr->MAC_Ctl);
+ if (lp->fullduplex) {
+ tc_writel(tc_readl(&tr->MAC_Ctl) | MAC_FullDup, &tr->MAC_Ctl);
+ } else {
+ tc_writel(tc_readl(&tr->MAC_Ctl) & ~MAC_FullDup, &tr->MAC_Ctl);
+ }
+ tc_writel(tc_readl(&tr->MAC_Ctl) & ~MAC_HaltReq, &tr->MAC_Ctl);
+
+ /* TX4939 PCFG.SPEEDn bit will be changed on NETDEV_CHANGE event. */
+
+#ifndef NO_CHECK_CARRIER
+ /* TX4939 does not have EnLCarr */
+ if (lp->boardtype != TC35815_TX4939) {
+#ifdef WORKAROUND_LOSTCAR
+ /* WORKAROUND: enable LostCrS only if half duplex operation */
+ if (!lp->fullduplex && lp->boardtype != TC35815_TX4939)
+ tc_writel(tc_readl(&tr->Tx_Ctl) | Tx_EnLCarr, &tr->Tx_Ctl);
+#endif
+ }
+#endif
+ lp->mii.full_duplex = lp->fullduplex;
+}
+
+static void tc35815_timer(unsigned long data)
+{
+ struct net_device *dev = (struct net_device *)data;
+ struct tc35815_local *lp = dev->priv;
+ int pid = lp->phy_addr;
+ unsigned short bmsr, bmcr, lpa;
+ int restart_timer = 0;
+
+ spin_lock_irq(&lp->lock);
+
+ lp->timer_ticks++;
+ switch (lp->timer_state) {
+ case arbwait:
+ /*
+ * Only allow for 5 ticks, thats 10 seconds and much too
+ * long to wait for arbitration to complete.
+ */
+ /* TC35815 need more times... */
+ if (lp->timer_ticks >= 10) {
+ /* Enter force mode. */
+ if (!options.doforce) {
+ printk(KERN_NOTICE "%s: Auto-Negotiation unsuccessful,"
+ " cable probblem?\n", dev->name);
+ /* Try to restart the adaptor. */
+ tc35815_restart(dev);
+ goto out;
+ }
+ printk(KERN_NOTICE "%s: Auto-Negotiation unsuccessful,"
+ " trying force link mode\n", dev->name);
+ printk(KERN_DEBUG "%s: BMCR %x BMSR %x\n", dev->name,
+ tc_mdio_read(dev, pid, MII_BMCR),
+ tc_mdio_read(dev, pid, MII_BMSR));
+ bmcr = BMCR_SPEED100;
+ tc_mdio_write(dev, pid, MII_BMCR, bmcr);
+
+ /*
+ * OK, seems we need do disable the transceiver
+ * for the first tick to make sure we get an
+ * accurate link state at the second tick.
+ */
+
+ lp->timer_state = ltrywait;
+ lp->timer_ticks = 0;
+ restart_timer = 1;
} else {
- /* auto negotiation */
- unsigned long neg_result;
- tc_phy_write(dev, MIICNTL_AUTO | MIICNTL_RST_AUTO, tr, 0, MII_CONTROL);
- printk(KERN_INFO "%s: Auto Negotiation...", dev->name);
- count = 0;
- while (!(tc_phy_read(dev, tr, 0, MII_STATUS) & MIISTAT_AUTO_DONE)) {
- if (count++ > 5000) {
- printk(" failed. Assume 10Mbps\n");
- lp->linkspeed = 10;
- lp->fullduplex = 0;
- goto done;
+ /* Anything interesting happen? */
+ bmsr = tc_mdio_read(dev, pid, MII_BMSR);
+ if (bmsr & BMSR_ANEGCOMPLETE) {
+ /* Just what we've been waiting for... */
+ tc35815_set_link_modes(dev);
+
+ /*
+ * Success, at least so far, advance our state
+ * engine.
+ */
+ lp->timer_state = lupwait;
+ restart_timer = 1;
+ } else {
+ restart_timer = 1;
+ }
+ }
+ break;
+
+ case lupwait:
+ /*
+ * Auto negotiation was successful and we are awaiting a
+ * link up status. I have decided to let this timer run
+ * forever until some sort of error is signalled, reporting
+ * a message to the user at 10 second intervals.
+ */
+ bmsr = tc_mdio_read(dev, pid, MII_BMSR);
+ if (bmsr & BMSR_LSTATUS) {
+ /*
+ * Wheee, it's up, display the link mode in use and put
+ * the timer to sleep.
+ */
+ tc35815_display_link_mode(dev);
+ netif_carrier_on(dev);
+#ifdef WORKAROUND_100HALF_PROMISC
+ /* delayed promiscuous enabling */
+ if (dev->flags & IFF_PROMISC)
+ tc35815_set_multicast_list(dev);
+#endif
+#if 1
+ lp->saved_lpa = tc_mdio_read(dev, pid, MII_LPA);
+ lp->timer_state = lcheck;
+ restart_timer = 1;
+#else
+ lp->timer_state = asleep;
+ restart_timer = 0;
+#endif
+ } else {
+ if (lp->timer_ticks >= 10) {
+ printk(KERN_NOTICE "%s: Auto negotiation successful, link still "
+ "not completely up.\n", dev->name);
+ lp->timer_ticks = 0;
+ restart_timer = 1;
+ } else {
+ restart_timer = 1;
+ }
+ }
+ break;
+
+ case ltrywait:
+ /*
+ * Making the timeout here too long can make it take
+ * annoyingly long to attempt all of the link mode
+ * permutations, but then again this is essentially
+ * error recovery code for the most part.
+ */
+ bmsr = tc_mdio_read(dev, pid, MII_BMSR);
+ bmcr = tc_mdio_read(dev, pid, MII_BMCR);
+ if (lp->timer_ticks == 1) {
+ /*
+ * Re-enable transceiver, we'll re-enable the
+ * transceiver next tick, then check link state
+ * on the following tick.
+ */
+ restart_timer = 1;
+ break;
+ }
+ if (lp->timer_ticks == 2) {
+ restart_timer = 1;
+ break;
+ }
+ if (bmsr & BMSR_LSTATUS) {
+ /* Force mode selection success. */
+ tc35815_display_forced_link_mode(dev);
+ netif_carrier_on(dev);
+ tc35815_set_link_modes(dev);
+#ifdef WORKAROUND_100HALF_PROMISC
+ /* delayed promiscuous enabling */
+ if (dev->flags & IFF_PROMISC)
+ tc35815_set_multicast_list(dev);
+#endif
+#if 1
+ lp->saved_lpa = tc_mdio_read(dev, pid, MII_LPA);
+ lp->timer_state = lcheck;
+ restart_timer = 1;
+#else
+ lp->timer_state = asleep;
+ restart_timer = 0;
+#endif
+ } else {
+ if (lp->timer_ticks >= 4) { /* 6 seconds or so... */
+ int ret;
+
+ ret = tc35815_try_next_permutation(dev);
+ if (ret == -1) {
+ /*
+ * Aieee, tried them all, reset the
+ * chip and try all over again.
+ */
+ printk(KERN_NOTICE "%s: Link down, "
+ "cable problem?\n",
+ dev->name);
+
+ /* Try to restart the adaptor. */
+ tc35815_restart(dev);
+ goto out;
}
- if (count % 512 == 0)
- printk(".");
- mdelay(1);
+ lp->timer_ticks = 0;
+ restart_timer = 1;
+ } else {
+ restart_timer = 1;
+ }
+ }
+ break;
+
+ case lcheck:
+ bmcr = tc_mdio_read(dev, pid, MII_BMCR);
+ lpa = tc_mdio_read(dev, pid, MII_LPA);
+ if (bmcr & (BMCR_PDOWN | BMCR_ISOLATE | BMCR_RESET)) {
+ printk(KERN_ERR "%s: PHY down? (BMCR %x)\n", dev->name,
+ bmcr);
+ } else if ((lp->saved_lpa ^ lpa) &
+ (LPA_100FULL|LPA_100HALF|LPA_10FULL|LPA_10HALF)) {
+ printk(KERN_NOTICE "%s: link status changed"
+ " (BMCR %x LPA %x->%x)\n", dev->name,
+ bmcr, lp->saved_lpa, lpa);
+ } else {
+ /* go on */
+ restart_timer = 1;
+ break;
+ }
+ /* Try to restart the adaptor. */
+ tc35815_restart(dev);
+ goto out;
+
+ case asleep:
+ default:
+ /* Can't happens.... */
+ printk(KERN_ERR "%s: Aieee, link timer is asleep but we got "
+ "one anyways!\n", dev->name);
+ restart_timer = 0;
+ lp->timer_ticks = 0;
+ lp->timer_state = asleep; /* foo on you */
+ break;
+ }
+
+ if (restart_timer) {
+ lp->timer.expires = jiffies + msecs_to_jiffies(1200);
+ add_timer(&lp->timer);
+ }
+out:
+ spin_unlock_irq(&lp->lock);
+}
+
+static void tc35815_start_auto_negotiation(struct net_device *dev,
+ struct ethtool_cmd *ep)
+{
+ struct tc35815_local *lp = dev->priv;
+ int pid = lp->phy_addr;
+ unsigned short bmsr, bmcr, advertize;
+ int timeout;
+
+ netif_carrier_off(dev);
+ bmsr = tc_mdio_read(dev, pid, MII_BMSR);
+ bmcr = tc_mdio_read(dev, pid, MII_BMCR);
+ advertize = tc_mdio_read(dev, pid, MII_ADVERTISE);
+
+ if (ep == NULL || ep->autoneg == AUTONEG_ENABLE) {
+ if (options.speed || options.duplex) {
+ /* Advertise only specified configuration. */
+ advertize &= ~(ADVERTISE_10HALF |
+ ADVERTISE_10FULL |
+ ADVERTISE_100HALF |
+ ADVERTISE_100FULL);
+ if (options.speed != 10) {
+ if (options.duplex != 1)
+ advertize |= ADVERTISE_100FULL;
+ if (options.duplex != 2)
+ advertize |= ADVERTISE_100HALF;
+ }
+ if (options.speed != 100) {
+ if (options.duplex != 1)
+ advertize |= ADVERTISE_10FULL;
+ if (options.duplex != 2)
+ advertize |= ADVERTISE_10HALF;
}
- printk(" done.\n");
- neg_result = tc_phy_read(dev, tr, 0, MII_ANLPAR);
- if (neg_result & (MII_AN_TX_FDX | MII_AN_TX_HDX))
- lp->linkspeed = 100;
+ if (options.speed == 100)
+ bmcr |= BMCR_SPEED100;
+ else if (options.speed == 10)
+ bmcr &= ~BMCR_SPEED100;
+ if (options.duplex == 2)
+ bmcr |= BMCR_FULLDPLX;
+ else if (options.duplex == 1)
+ bmcr &= ~BMCR_FULLDPLX;
+ } else {
+ /* Advertise everything we can support. */
+ if (bmsr & BMSR_10HALF)
+ advertize |= ADVERTISE_10HALF;
else
- lp->linkspeed = 10;
- if (neg_result & (MII_AN_TX_FDX | MII_AN_10_FDX))
- lp->fullduplex = 1;
+ advertize &= ~ADVERTISE_10HALF;
+ if (bmsr & BMSR_10FULL)
+ advertize |= ADVERTISE_10FULL;
else
- lp->fullduplex = 0;
- done:
- ;
+ advertize &= ~ADVERTISE_10FULL;
+ if (bmsr & BMSR_100HALF)
+ advertize |= ADVERTISE_100HALF;
+ else
+ advertize &= ~ADVERTISE_100HALF;
+ if (bmsr & BMSR_100FULL)
+ advertize |= ADVERTISE_100FULL;
+ else
+ advertize &= ~ADVERTISE_100FULL;
+ }
+
+ tc_mdio_write(dev, pid, MII_ADVERTISE, advertize);
+
+ /* Enable Auto-Negotiation, this is usually on already... */
+ bmcr |= BMCR_ANENABLE;
+ tc_mdio_write(dev, pid, MII_BMCR, bmcr);
+
+ /* Restart it to make sure it is going. */
+ bmcr |= BMCR_ANRESTART;
+ tc_mdio_write(dev, pid, MII_BMCR, bmcr);
+ printk(KERN_DEBUG "%s: ADVERTISE %x BMCR %x\n", dev->name, advertize, bmcr);
+
+ /* BMCR_ANRESTART self clears when the process has begun. */
+ timeout = 64; /* More than enough. */
+ while (--timeout) {
+ bmcr = tc_mdio_read(dev, pid, MII_BMCR);
+ if (!(bmcr & BMCR_ANRESTART))
+ break; /* got it. */
+ udelay(10);
}
+ if (!timeout) {
+ printk(KERN_ERR "%s: TC35815 would not start auto "
+ "negotiation BMCR=0x%04x\n",
+ dev->name, bmcr);
+ printk(KERN_NOTICE "%s: Performing force link "
+ "detection.\n", dev->name);
+ goto force_link;
+ } else {
+ printk(KERN_DEBUG "%s: auto negotiation started.\n", dev->name);
+ lp->timer_state = arbwait;
+ }
+ } else {
+force_link:
+ /* Force the link up, trying first a particular mode.
+ * Either we are here at the request of ethtool or
+ * because the Happy Meal would not start to autoneg.
+ */
+
+ /* Disable auto-negotiation in BMCR, enable the duplex and
+ * speed setting, init the timer state machine, and fire it off.
+ */
+ if (ep == NULL || ep->autoneg == AUTONEG_ENABLE) {
+ bmcr = BMCR_SPEED100;
+ } else {
+ if (ep->speed == SPEED_100)
+ bmcr = BMCR_SPEED100;
+ else
+ bmcr = 0;
+ if (ep->duplex == DUPLEX_FULL)
+ bmcr |= BMCR_FULLDPLX;
+ }
+ tc_mdio_write(dev, pid, MII_BMCR, bmcr);
+
+ /* OK, seems we need do disable the transceiver for the first
+ * tick to make sure we get an accurate link state at the
+ * second tick.
+ */
+ lp->timer_state = ltrywait;
}
- ctl = 0;
- if (lp->linkspeed == 100)
- ctl |= MIICNTL_SPEED;
- if (lp->fullduplex)
- ctl |= MIICNTL_FDX;
- tc_phy_write(dev, ctl, tr, 0, MII_CONTROL);
+ del_timer(&lp->timer);
+ lp->timer_ticks = 0;
+ lp->timer.expires = jiffies + msecs_to_jiffies(1200);
+ add_timer(&lp->timer);
+}
- if (lp->fullduplex) {
- tc_writel(tc_readl(&tr->MAC_Ctl) | MAC_FullDup, &tr->MAC_Ctl);
+static void tc35815_find_phy(struct net_device *dev)
+{
+ struct tc35815_local *lp = dev->priv;
+ int pid = lp->phy_addr;
+ unsigned short id0;
+
+ /* find MII phy */
+ for (pid = 31; pid >= 0; pid--) {
+ id0 = tc_mdio_read(dev, pid, MII_BMSR);
+ if (id0 != 0xffff && id0 != 0x0000 &&
+ (id0 & BMSR_RESV) != (0xffff & BMSR_RESV) /* paranoia? */
+ ) {
+ lp->phy_addr = pid;
+ break;
+ }
}
+ if (pid < 0) {
+ printk(KERN_ERR "%s: No MII Phy found.\n",
+ dev->name);
+ lp->phy_addr = pid = 0;
+ }
+
+ lp->mii_id[0] = tc_mdio_read(dev, pid, MII_PHYSID1);
+ lp->mii_id[1] = tc_mdio_read(dev, pid, MII_PHYSID2);
+ if (netif_msg_hw(lp))
+ printk(KERN_INFO "%s: PHY(%02x) ID %04x %04x\n", dev->name,
+ pid, lp->mii_id[0], lp->mii_id[1]);
}
-static void tc35815_chip_reset(struct net_device *dev)
+static void tc35815_phy_chip_init(struct net_device *dev)
{
- struct tc35815_regs *tr = (struct tc35815_regs*)dev->base_addr;
+ struct tc35815_local *lp = dev->priv;
+ int pid = lp->phy_addr;
+ unsigned short bmcr;
+ struct ethtool_cmd ecmd, *ep;
+
+ /* dis-isolate if needed. */
+ bmcr = tc_mdio_read(dev, pid, MII_BMCR);
+ if (bmcr & BMCR_ISOLATE) {
+ int count = 32;
+ printk(KERN_DEBUG "%s: unisolating...", dev->name);
+ tc_mdio_write(dev, pid, MII_BMCR, bmcr & ~BMCR_ISOLATE);
+ while (--count) {
+ if (!(tc_mdio_read(dev, pid, MII_BMCR) & BMCR_ISOLATE))
+ break;
+ udelay(20);
+ }
+ printk(" %s.\n", count ? "done" : "failed");
+ }
+
+ if (options.speed && options.duplex) {
+ ecmd.autoneg = AUTONEG_DISABLE;
+ ecmd.speed = options.speed == 10 ? SPEED_10 : SPEED_100;
+ ecmd.duplex = options.duplex == 1 ? DUPLEX_HALF : DUPLEX_FULL;
+ ep = &ecmd;
+ } else {
+ ep = NULL;
+ }
+ tc35815_start_auto_negotiation(dev, ep);
+}
+static void tc35815_chip_reset(struct net_device *dev)
+{
+ struct tc35815_regs __iomem *tr =
+ (struct tc35815_regs __iomem *)dev->base_addr;
+ int i;
/* reset the controller */
tc_writel(MAC_Reset, &tr->MAC_Ctl);
- while (tc_readl(&tr->MAC_Ctl) & MAC_Reset)
- ;
-
+ udelay(4); /* 3200ns */
+ i = 0;
+ while (tc_readl(&tr->MAC_Ctl) & MAC_Reset) {
+ if (i++ > 100) {
+ printk(KERN_ERR "%s: MAC reset failed.\n", dev->name);
+ break;
+ }
+ mdelay(1);
+ }
tc_writel(0, &tr->MAC_Ctl);
/* initialize registers to default value */
@@ -1651,90 +2838,142 @@ static void tc35815_chip_reset(struct ne
tc_writel(0, &tr->CAM_Ena);
(void)tc_readl(&tr->Miss_Cnt); /* Read to clear */
+ /* initialize internal SRAM */
+ tc_writel(DMA_TestMode, &tr->DMA_Ctl);
+ for (i = 0; i < 0x1000; i += 4) {
+ tc_writel(i, &tr->CAM_Adr);
+ tc_writel(0, &tr->CAM_Data);
+ }
+ tc_writel(0, &tr->DMA_Ctl);
}
static void tc35815_chip_init(struct net_device *dev)
{
struct tc35815_local *lp = dev->priv;
- struct tc35815_regs *tr = (struct tc35815_regs*)dev->base_addr;
- unsigned long flags;
+ struct tc35815_regs __iomem *tr =
+ (struct tc35815_regs __iomem *)dev->base_addr;
unsigned long txctl = TX_CTL_CMD;
tc35815_phy_chip_init(dev);
/* load station address to CAM */
- tc35815_set_cam_entry(tr, CAM_ENTRY_SOURCE, dev->dev_addr);
+ tc35815_set_cam_entry(dev, CAM_ENTRY_SOURCE, dev->dev_addr);
/* Enable CAM (broadcast and unicast) */
tc_writel(CAM_Ena_Bit(CAM_ENTRY_SOURCE), &tr->CAM_Ena);
tc_writel(CAM_CompEn | CAM_BroadAcc, &tr->CAM_Ctl);
- spin_lock_irqsave(&lp->lock, flags);
-
- tc_writel(DMA_BURST_SIZE, &tr->DMA_Ctl);
-
+ /* Use DMA_RxAlign_2 to make IP header 4-byte aligned. */
+ if (HAVE_DMA_RXALIGN(lp))
+ tc_writel(DMA_BURST_SIZE | DMA_RxAlign_2, &tr->DMA_Ctl);
+ else
+ tc_writel(DMA_BURST_SIZE, &tr->DMA_Ctl);
+#ifdef TC35815_USE_PACKEDBUFFER
tc_writel(RxFrag_EnPack | ETH_ZLEN, &tr->RxFragSize); /* Packing */
+#else
+ tc_writel(ETH_ZLEN, &tr->RxFragSize);
+#endif
tc_writel(0, &tr->TxPollCtr); /* Batch mode */
tc_writel(TX_THRESHOLD, &tr->TxThrsh);
tc_writel(INT_EN_CMD, &tr->Int_En);
/* set queues */
- tc_writel(virt_to_bus(lp->rfd_base), &tr->FDA_Bas);
+ tc_writel(fd_virt_to_bus(lp, lp->rfd_base), &tr->FDA_Bas);
tc_writel((unsigned long)lp->rfd_limit - (unsigned long)lp->rfd_base,
&tr->FDA_Lim);
/*
* Activation method:
- * First, enable eht MAC Transmitter and the DMA Receive circuits.
+ * First, enable the MAC Transmitter and the DMA Receive circuits.
* Then enable the DMA Transmitter and the MAC Receive circuits.
*/
- tc_writel(virt_to_bus(lp->fbl_ptr), &tr->BLFrmPtr); /* start DMA receiver */
+ tc_writel(fd_virt_to_bus(lp, lp->fbl_ptr), &tr->BLFrmPtr); /* start DMA receiver */
tc_writel(RX_CTL_CMD, &tr->Rx_Ctl); /* start MAC receiver */
+
/* start MAC transmitter */
+#ifndef NO_CHECK_CARRIER
+ /* TX4939 does not have EnLCarr */
+ if (lp->boardtype == TC35815_TX4939)
+ txctl &= ~Tx_EnLCarr;
+#ifdef WORKAROUND_LOSTCAR
/* WORKAROUND: ignore LostCrS in full duplex operation */
- if (lp->fullduplex)
- txctl = TX_CTL_CMD & ~Tx_EnLCarr;
+ if ((lp->timer_state != asleep && lp->timer_state != lcheck) ||
+ lp->fullduplex)
+ txctl &= ~Tx_EnLCarr;
+#endif
+#endif /* !NO_CHECK_CARRIER */
#ifdef GATHER_TXINT
txctl &= ~Tx_EnComp; /* disable global tx completion int. */
#endif
tc_writel(txctl, &tr->Tx_Ctl);
-#if 0 /* No need to polling */
- tc_writel(virt_to_bus(lp->tfd_base), &tr->TxFrmPtr); /* start DMA transmitter */
-#endif
+}
+
+#ifdef CONFIG_PM
+static int tc35815_suspend(struct pci_dev *pdev, pm_message_t state)
+{
+ struct net_device *dev = pci_get_drvdata(pdev);
+ struct tc35815_local *lp = dev->priv;
+ unsigned long flags;
+
+ pci_save_state(pdev);
+ if (!netif_running(dev))
+ return 0;
+ netif_device_detach(dev);
+ spin_lock_irqsave(&lp->lock, flags);
+ del_timer(&lp->timer); /* Kill if running */
+ tc35815_chip_reset(dev);
spin_unlock_irqrestore(&lp->lock, flags);
+ pci_set_power_state(pdev, PCI_D3hot);
+ return 0;
}
-static struct pci_driver tc35815_driver = {
- .name = TC35815_MODULE_NAME,
- .probe = tc35815_probe,
- .remove = NULL,
- .id_table = tc35815_pci_tbl,
+static int tc35815_resume(struct pci_dev *pdev)
+{
+ struct net_device *dev = pci_get_drvdata(pdev);
+ struct tc35815_local *lp = dev->priv;
+ unsigned long flags;
+
+ pci_restore_state(pdev);
+ if (!netif_running(dev))
+ return 0;
+ pci_set_power_state(pdev, PCI_D0);
+ spin_lock_irqsave(&lp->lock, flags);
+ tc35815_restart(dev);
+ spin_unlock_irqrestore(&lp->lock, flags);
+ netif_device_attach(dev);
+ return 0;
+}
+#endif /* CONFIG_PM */
+
+static struct pci_driver tc35815_pci_driver = {
+ .name = MODNAME,
+ .id_table = tc35815_pci_tbl,
+ .probe = tc35815_init_one,
+ .remove = __devexit_p(tc35815_remove_one),
+#ifdef CONFIG_PM
+ .suspend = tc35815_suspend,
+ .resume = tc35815_resume,
+#endif
};
+module_param_named(speed, options.speed, int, 0);
+MODULE_PARM_DESC(speed, "0:auto, 10:10Mbps, 100:100Mbps");
+module_param_named(duplex, options.duplex, int, 0);
+MODULE_PARM_DESC(duplex, "0:auto, 1:half, 2:full");
+module_param_named(doforce, options.doforce, int, 0);
+MODULE_PARM_DESC(doforce, "try force link mode if auto-negotiation failed");
+
static int __init tc35815_init_module(void)
{
- return pci_register_driver(&tc35815_driver);
+ return pci_register_driver(&tc35815_pci_driver);
}
static void __exit tc35815_cleanup_module(void)
{
- struct net_device *next_dev;
-
- /*
- * TODO: implement a tc35815_driver.remove hook, and
- * move this code into that function. Then, delete
- * all root_tc35815_dev list handling code.
- */
- while (root_tc35815_dev) {
- struct net_device *dev = root_tc35815_dev;
- next_dev = ((struct tc35815_local *)dev->priv)->next_module;
- iounmap((void *)(dev->base_addr));
- unregister_netdev(dev);
- free_netdev(dev);
- root_tc35815_dev = next_dev;
- }
-
- pci_unregister_driver(&tc35815_driver);
+ pci_unregister_driver(&tc35815_pci_driver);
}
module_init(tc35815_init_module);
module_exit(tc35815_cleanup_module);
+
+MODULE_DESCRIPTION("TOSHIBA TC35815 PCI 10M/100M Ethernet driver");
+MODULE_LICENSE("GPL");
diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h
index 600308f..247b5e6 100644
--- a/include/linux/pci_ids.h
+++ b/include/linux/pci_ids.h
@@ -1459,6 +1459,8 @@
#define PCI_VENDOR_ID_TOSHIBA_2 0x102f
#define PCI_DEVICE_ID_TOSHIBA_TC35815CF 0x0030
+#define PCI_DEVICE_ID_TOSHIBA_TC35815_NWU 0x0031
+#define PCI_DEVICE_ID_TOSHIBA_TC35815_TX4939 0x0032
#define PCI_DEVICE_ID_TOSHIBA_TC86C001_IDE 0x0105
#define PCI_DEVICE_ID_TOSHIBA_TC86C001_MISC 0x0108
#define PCI_DEVICE_ID_TOSHIBA_SPIDER_NET 0x01b3
