of the GNU General Public License, incorporated herein by reference.
Please refer to Documentation/DocBook/tulip-user.{pdf,ps,html}
- for more information on this driver, or visit the project
- Web page at http://sourceforge.net/projects/tulip/
+ for more information on this driver.
+ Please submit bugs to http://bugzilla.kernel.org/ .
*/
#ifndef __NET_TULIP_H__
#include <linux/netdevice.h>
#include <linux/timer.h>
#include <linux/delay.h>
+#include <linux/pci.h>
#include <asm/io.h>
#include <asm/irq.h>
+#include <asm/unaligned.h>
/* undefine, or define to various debugging levels (>4 == obscene levels) */
#define TULIP_DEBUG 1
-/* undefine USE_IO_OPS for MMIO, define for PIO */
#ifdef CONFIG_TULIP_MMIO
-# undef USE_IO_OPS
+#define TULIP_BAR 1 /* CBMA */
#else
-# define USE_IO_OPS 1
+#define TULIP_BAR 0 /* CBIO */
#endif
int valid_intrs; /* CSR7 interrupt enable settings */
int flags;
void (*media_timer) (unsigned long);
- void (*media_task) (void *);
+ work_func_t media_task;
};
/* The bits in the CSR5 status registers, mostly interrupt sources. */
enum status_bits {
TimerInt = 0x800,
- SytemError = 0x2000,
+ SystemError = 0x2000,
TPLnkFail = 0x1000,
TPLnkPass = 0x10,
NormalIntr = 0x10000,
RxNoBuf = 0x80,
RxIntr = 0x40,
TxFIFOUnderflow = 0x20,
+ RxErrIntr = 0x10,
TxJabber = 0x08,
TxNoBuf = 0x04,
TxDied = 0x02,
/* The Tulip Rx and Tx buffer descriptors. */
struct tulip_rx_desc {
- s32 status;
- s32 length;
- u32 buffer1;
- u32 buffer2;
+ __le32 status;
+ __le32 length;
+ __le32 buffer1;
+ __le32 buffer2;
};
struct tulip_tx_desc {
- s32 status;
- s32 length;
- u32 buffer1;
- u32 buffer2; /* We use only buffer 1. */
+ __le32 status;
+ __le32 length;
+ __le32 buffer1;
+ __le32 buffer2; /* We use only buffer 1. */
};
enum desc_status_bits {
- DescOwned = 0x80000000,
- RxDescFatalErr = 0x8000,
- RxWholePkt = 0x0300,
+ DescOwned = 0x80000000,
+ DescWholePkt = 0x60000000,
+ DescEndPkt = 0x40000000,
+ DescStartPkt = 0x20000000,
+ DescEndRing = 0x02000000,
+ DescUseLink = 0x01000000,
+
+ /*
+ * Error summary flag is logical or of 'CRC Error', 'Collision Seen',
+ * 'Frame Too Long', 'Runt' and 'Descriptor Error' flags generated
+ * within tulip chip.
+ */
+ RxDescErrorSummary = 0x8000,
+ RxDescCRCError = 0x0002,
+ RxDescCollisionSeen = 0x0040,
+
+ /*
+ * 'Frame Too Long' flag is set if packet length including CRC exceeds
+ * 1518. However, a full sized VLAN tagged frame is 1522 bytes
+ * including CRC.
+ *
+ * The tulip chip does not block oversized frames, and if this flag is
+ * set on a receive descriptor it does not indicate the frame has been
+ * truncated. The receive descriptor also includes the actual length.
+ * Therefore we can safety ignore this flag and check the length
+ * ourselves.
+ */
+ RxDescFrameTooLong = 0x0080,
+ RxDescRunt = 0x0800,
+ RxDescDescErr = 0x4000,
+ RxWholePkt = 0x00000300,
+ /*
+ * Top three bits of 14 bit frame length (status bits 27-29) should
+ * never be set as that would make frame over 2047 bytes. The Receive
+ * Watchdog flag (bit 4) may indicate the length is over 2048 and the
+ * length field is invalid.
+ */
+ RxLengthOver2047 = 0x38000010
};
#define RX_RING_SIZE 128
#define MEDIA_MASK 31
-#define PKT_BUF_SZ 1536 /* Size of each temporary Rx buffer. */
+/* The receiver on the DC21143 rev 65 can fail to close the last
+ * receive descriptor in certain circumstances (see errata) when
+ * using MWI. This can only occur if the receive buffer ends on
+ * a cache line boundary, so the "+ 4" below ensures it doesn't.
+ */
+#define PKT_BUF_SZ (1536 + 4) /* Size of each temporary Rx buffer. */
#define TULIP_MIN_CACHE_LINE 8 /* in units of 32-bit words */
#define RUN_AT(x) (jiffies + (x))
-#if defined(__i386__) /* AKA get_unaligned() */
-#define get_u16(ptr) (*(u16 *)(ptr))
-#else
-#define get_u16(ptr) (((u8*)(ptr))[0] + (((u8*)(ptr))[1]<<8))
-#endif
+#define get_u16(ptr) get_unaligned_le16((ptr))
struct medialeaf {
u8 type;
int chip_id;
int revision;
int flags;
+ struct napi_struct napi;
struct net_device_stats stats;
struct timer_list timer; /* Media selection timer. */
struct timer_list oom_timer; /* Out of memory timer. */
int csr12_shadow;
int pad0; /* Used for 8-byte alignment */
struct work_struct media_work;
+ struct net_device *dev;
};
/* 21142.c */
extern u16 t21142_csr14[];
-void t21142_media_task(void *data);
+void t21142_media_task(struct work_struct *work);
void t21142_start_nway(struct net_device *dev);
void t21142_lnk_change(struct net_device *dev, int csr5);
/* interrupt.c */
extern unsigned int tulip_max_interrupt_work;
extern int tulip_rx_copybreak;
-irqreturn_t tulip_interrupt(int irq, void *dev_instance, struct pt_regs *regs);
+irqreturn_t tulip_interrupt(int irq, void *dev_instance);
int tulip_refill_rx(struct net_device *dev);
#ifdef CONFIG_TULIP_NAPI
-int tulip_poll(struct net_device *dev, int *budget);
+int tulip_poll(struct napi_struct *napi, int budget);
#endif
void pnic_timer(unsigned long data);
/* timer.c */
-void tulip_media_task(void *data);
+void tulip_media_task(struct work_struct *work);
void mxic_timer(unsigned long data);
void comet_timer(unsigned long data);
udelay(10);
if (!i)
- printk(KERN_DEBUG "%s: tulip_stop_rxtx() failed\n",
- pci_name(tp->pdev));
+ printk(KERN_DEBUG "%s: tulip_stop_rxtx() failed"
+ " (CSR5 0x%x CSR6 0x%x)\n",
+ pci_name(tp->pdev),
+ ioread32(ioaddr + CSR5),
+ ioread32(ioaddr + CSR6));
}
}