patch-2.4.6 linux/drivers/net/starfire.c
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- Lines: 2068
- Date:
Mon Jul 2 14:03:04 2001
- Orig file:
v2.4.5/linux/drivers/net/starfire.c
- Orig date:
Fri Apr 20 11:54:23 2001
diff -u --recursive --new-file v2.4.5/linux/drivers/net/starfire.c linux/drivers/net/starfire.c
@@ -2,6 +2,10 @@
/*
Written 1998-2000 by Donald Becker.
+ Current maintainer is Ion Badulescu <ionut@cs.columbia.edu>. Please
+ send all bug reports to me, and not to Donald Becker, as this code
+ has been modified quite a bit from Donald's original version.
+
This software may be used and distributed according to the terms of
the GNU General Public License (GPL), incorporated herein by reference.
Drivers based on or derived from this code fall under the GPL and must
@@ -20,7 +24,7 @@
-----------------------------------------------------------
Linux kernel-specific changes:
-
+
LK1.1.1 (jgarzik):
- Use PCI driver interface
- Fix MOD_xxx races
@@ -31,35 +35,130 @@
LK1.1.3 (Andrew Morton)
- Timer cleanups
-
+
LK1.1.4 (jgarzik):
- Merge Becker version 1.03
+
+ LK1.2.1 (Ion Badulescu <ionut@cs.columbia.edu>)
+ - Support hardware Rx/Tx checksumming
+ - Use the GFP firmware taken from Adaptec's Netware driver
+
+ LK1.2.2 (Ion Badulescu)
+ - Backported to 2.2.x
+
+ LK1.2.3 (Ion Badulescu)
+ - Fix the flaky mdio interface
+ - More compat clean-ups
+
+ LK1.2.4 (Ion Badulescu)
+ - More 2.2.x initialization fixes
+
+ LK1.2.5 (Ion Badulescu)
+ - Several fixes from Manfred Spraul
+
+ LK1.2.6 (Ion Badulescu)
+ - Fixed ifup/ifdown/ifup problem in 2.4.x
+
+ LK1.2.7 (Ion Badulescu)
+ - Removed unused code
+ - Made more functions static and __init
+
+ LK1.2.8 (Ion Badulescu)
+ - Quell bogus error messages, inform about the Tx threshold
+ - Removed #ifdef CONFIG_PCI, this driver is PCI only
+
+ LK1.2.9 (Ion Badulescu)
+ - Merged Jeff Garzik's changes from 2.4.4-pre5
+ - Added 2.2.x compatibility stuff required by the above changes
+
+ LK1.2.9a (Ion Badulescu)
+ - More updates from Jeff Garzik
+
+ LK1.3.0 (Ion Badulescu)
+ - Merged zerocopy support
+
+ LK1.3.1 (Ion Badulescu)
+ - Added ethtool support
+ - Added GPIO (media change) interrupt support
+
+ LK1.3.2 (Ion Badulescu)
+ - Fixed 2.2.x compatibility issues introduced in 1.3.1
+ - Fixed ethtool ioctl returning uninitialized memory
+
+TODO:
+ - implement tx_timeout() properly
*/
+#define DRV_NAME "starfire"
+#define DRV_VERSION "1.03+LK1.3.2"
+#define DRV_RELDATE "June 04, 2001"
+
+/*
+ * Adaptec's license for their Novell drivers (which is where I got the
+ * firmware files) does not allow one to redistribute them. Thus, we can't
+ * include the firmware with this driver.
+ *
+ * However, an end-user is allowed to download and use it, after
+ * converting it to C header files using starfire_firmware.pl.
+ * Once that's done, the #undef below must be changed into a #define
+ * for this driver to really use the firmware. Note that Rx/Tx
+ * hardware TCP checksumming is not possible without the firmware.
+ *
+ * I'm currently [Feb 2001] talking to Adaptec about this redistribution
+ * issue. Stay tuned...
+ */
+#undef HAS_FIRMWARE
+/*
+ * The current frame processor firmware fails to checksum a fragment
+ * of length 1. If and when this is fixed, the #define below can be removed.
+ */
+#define HAS_BROKEN_FIRMWARE
+/*
+ * Define this if using the driver with the zero-copy patch
+ */
+#if defined(HAS_FIRMWARE) && defined(MAX_SKB_FRAGS)
+#define ZEROCOPY
+#endif
+
/* The user-configurable values.
These may be modified when a driver module is loaded.*/
/* Used for tuning interrupt latency vs. overhead. */
-static int interrupt_mitigation = 0x0;
+static int interrupt_mitigation;
static int debug = 1; /* 1 normal messages, 0 quiet .. 7 verbose. */
static int max_interrupt_work = 20;
static int mtu;
/* Maximum number of multicast addresses to filter (vs. rx-all-multicast).
- The Starfire has a 512 element hash table based on the Ethernet CRC. */
-static int multicast_filter_limit = 32;
+ The Starfire has a 512 element hash table based on the Ethernet CRC. */
+static int multicast_filter_limit = 512;
-/* Set the copy breakpoint for the copy-only-tiny-frames scheme.
- Setting to > 1518 effectively disables this feature. */
-static int rx_copybreak = 0;
+#define PKT_BUF_SZ 1536 /* Size of each temporary Rx buffer.*/
+/*
+ * Set the copy breakpoint for the copy-only-tiny-frames scheme.
+ * Setting to > 1518 effectively disables this feature.
+ *
+ * NOTE:
+ * The ia64 doesn't allow for unaligned loads even of integers being
+ * misaligned on a 2 byte boundary. Thus always force copying of
+ * packets as the starfire doesn't allow for misaligned DMAs ;-(
+ * 23/10/2000 - Jes
+ *
+ * The Alpha and the Sparc don't allow unaligned loads, either. -Ion
+ */
+#if defined(__ia64__) || defined(__alpha__) || defined(__sparc__)
+static int rx_copybreak = PKT_BUF_SZ;
+#else
+static int rx_copybreak /* = 0 */;
+#endif
/* Used to pass the media type, etc.
Both 'options[]' and 'full_duplex[]' exist for driver interoperability.
The media type is usually passed in 'options[]'.
*/
#define MAX_UNITS 8 /* More are supported, limit only on options */
-static int options[MAX_UNITS] = {-1, -1, -1, -1, -1, -1, -1, -1};
-static int full_duplex[MAX_UNITS] = {-1, -1, -1, -1, -1, -1, -1, -1};
+static int options[MAX_UNITS] = {0, };
+static int full_duplex[MAX_UNITS] = {0, };
/* Operational parameters that are set at compile time. */
@@ -75,21 +174,23 @@
/* Operational parameters that usually are not changed. */
/* Time in jiffies before concluding the transmitter is hung. */
-#define TX_TIMEOUT (2*HZ)
+#define TX_TIMEOUT (2 * HZ)
-#define PKT_BUF_SZ 1536 /* Size of each temporary Rx buffer.*/
-
-/*
- * The ia64 doesn't allow for unaligned loads even of integers being
- * misaligned on a 2 byte boundary. Thus always force copying of
- * packets as the starfire doesn't allow for misaligned DMAs ;-(
- * 23/10/2000 - Jes
- */
-#ifdef __ia64__
-#define PKT_SHOULD_COPY(pkt_len) 1
-#else
-#define PKT_SHOULD_COPY(pkt_len) (pkt_len < rx_copybreak)
-#endif
+#ifdef ZEROCOPY
+#if MAX_SKB_FRAGS <= 6
+#define MAX_STARFIRE_FRAGS 6
+#else /* MAX_STARFIRE_FRAGS > 6 */
+#warning This driver will not work with more than 6 skb fragments.
+#warning Turning off zerocopy support.
+#undef ZEROCOPY
+#endif /* MAX_STARFIRE_FRAGS > 6 */
+#endif /* ZEROCOPY */
+
+#ifdef ZEROCOPY
+#define skb_first_frag_len(skb) skb_headlen(skb)
+#else /* not ZEROCOPY */
+#define skb_first_frag_len(skb) (skb->len)
+#endif /* not ZEROCOPY */
#if !defined(__OPTIMIZE__)
#warning You must compile this file with the correct options!
@@ -97,28 +198,54 @@
#error You must compile this driver with "-O".
#endif
+#include <linux/version.h>
#include <linux/module.h>
#include <linux/kernel.h>
-#include <linux/string.h>
-#include <linux/timer.h>
-#include <linux/errno.h>
-#include <linux/ioport.h>
-#include <linux/slab.h>
-#include <linux/interrupt.h>
#include <linux/pci.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
-#include <linux/skbuff.h>
#include <linux/init.h>
+#include <linux/delay.h>
#include <asm/processor.h> /* Processor type for cache alignment. */
-#include <asm/bitops.h>
+#include <asm/uaccess.h>
#include <asm/io.h>
+#ifdef HAS_FIRMWARE
+#include "starfire_firmware.h"
+#endif /* HAS_FIRMWARE */
+
+/* 2.2.x compatibility code */
+#if LINUX_VERSION_CODE < 0x20300
+
+#include "starfire-kcomp22.h"
+
+#else /* LINUX_VERSION_CODE > 0x20300 */
+
+#include <linux/ethtool.h>
+#include <linux/mii.h>
+
+#define COMPAT_MOD_INC_USE_COUNT
+#define COMPAT_MOD_DEC_USE_COUNT
+
+#define init_tx_timer(dev, func, timeout) \
+ dev->tx_timeout = func; \
+ dev->watchdog_timeo = timeout;
+#define kick_tx_timer(dev, func, timeout)
+
+#define netif_start_if(dev)
+#define netif_stop_if(dev)
+
+#define PCI_SLOT_NAME(pci_dev) (pci_dev)->slot_name
+
+#endif /* LINUX_VERSION_CODE > 0x20300 */
+/* end of compatibility code */
+
+
/* These identify the driver base version and may not be removed. */
static char version[] __devinitdata =
KERN_INFO "starfire.c:v1.03 7/26/2000 Written by Donald Becker <becker@scyld.com>\n"
KERN_INFO " Updates and info at http://www.scyld.com/network/starfire.html\n"
-KERN_INFO " (unofficial 2.4.x kernel port, version 1.1.4a, April 17, 2001)\n";
+KERN_INFO " (unofficial 2.2/2.4 kernel port, version " DRV_VERSION ", " DRV_RELDATE ")\n";
MODULE_AUTHOR("Donald Becker <becker@scyld.com>");
MODULE_DESCRIPTION("Adaptec Starfire Ethernet driver");
@@ -126,8 +253,15 @@
MODULE_PARM(mtu, "i");
MODULE_PARM(debug, "i");
MODULE_PARM(rx_copybreak, "i");
+MODULE_PARM(interrupt_mitigation, "i");
MODULE_PARM(options, "1-" __MODULE_STRING(MAX_UNITS) "i");
MODULE_PARM(full_duplex, "1-" __MODULE_STRING(MAX_UNITS) "i");
+MODULE_PARM_DESC(max_interrupt_work, "Starfire maximum events handled per interrupt");
+MODULE_PARM_DESC(mtu, "Starfire MTU (all boards)");
+MODULE_PARM_DESC(debug, "Starfire debug level (0-6)");
+MODULE_PARM_DESC(rx_copybreak, "Starfire copy breakpoint for copy-only-tiny-frames");
+MODULE_PARM_DESC(options, "Starfire: Bits 0-3: media type, bit 17: full duplex");
+MODULE_PARM_DESC(full_duplex, "Starfire full duplex setting(s) (1)");
/*
Theory of Operation
@@ -158,8 +292,9 @@
See the Adaptec manual for the many possible structures, and options for
each structure. There are far too many to document here.
-For transmit this driver uses type 1 transmit descriptors, and relies on
-automatic minimum-length padding. It does not use the completion queue
+For transmit this driver uses type 0/1 transmit descriptors (depending
+on the presence of the zerocopy infrastructure), and relies on automatic
+minimum-length padding. It does not use the completion queue
consumer index, but instead checks for non-zero status entries.
For receive this driver uses type 0 receive descriptors. The driver
@@ -174,10 +309,11 @@
phase of receive.
A notable aspect of operation is that unaligned buffers are not permitted by
-the Starfire hardware. The IP header at offset 14 in an ethernet frame thus
+the Starfire hardware. Thus the IP header at offset 14 in an ethernet frame
isn't longword aligned, which may cause problems on some machine
-e.g. Alphas. Copied frames are put into the skbuff at an offset of "+2",
-16-byte aligning the IP header.
+e.g. Alphas and IA64. For these architectures, the driver is forced to copy
+the frame into a new skbuff unconditionally. Copied frames are put into the
+skbuff at an offset of "+2", thus 16-byte aligning the IP header.
IIId. Synchronization
@@ -212,7 +348,6 @@
enum chip_capability_flags {CanHaveMII=1, };
#define PCI_IOTYPE (PCI_USES_MASTER | PCI_USES_MEM | PCI_ADDR0)
-#define MEM_ADDR_SZ 0x80000 /* And maps in 0.5MB(!). */
#if 0
#define ADDR_64BITS 1 /* This chip uses 64 bit addresses. */
@@ -233,10 +368,9 @@
/* A chip capabilities table, matching the CH_xxx entries in xxx_pci_tbl[] above. */
static struct chip_info {
const char *name;
- int io_size;
int drv_flags;
} netdrv_tbl[] __devinitdata = {
- { "Adaptec Starfire 6915", MEM_ADDR_SZ, CanHaveMII },
+ { "Adaptec Starfire 6915", CanHaveMII },
};
@@ -252,26 +386,40 @@
PCIDeviceConfig=0x50040, GenCtrl=0x50070, IntrTimerCtrl=0x50074,
IntrClear=0x50080, IntrStatus=0x50084, IntrEnable=0x50088,
MIICtrl=0x52000, StationAddr=0x50120, EEPROMCtrl=0x51000,
- TxDescCtrl=0x50090,
+ GPIOCtrl=0x5008C, TxDescCtrl=0x50090,
TxRingPtr=0x50098, HiPriTxRingPtr=0x50094, /* Low and High priority. */
TxRingHiAddr=0x5009C, /* 64 bit address extension. */
TxProducerIdx=0x500A0, TxConsumerIdx=0x500A4,
TxThreshold=0x500B0,
CompletionHiAddr=0x500B4, TxCompletionAddr=0x500B8,
RxCompletionAddr=0x500BC, RxCompletionQ2Addr=0x500C0,
- CompletionQConsumerIdx=0x500C4,
+ CompletionQConsumerIdx=0x500C4, RxDMACtrl=0x500D0,
RxDescQCtrl=0x500D4, RxDescQHiAddr=0x500DC, RxDescQAddr=0x500E0,
RxDescQIdx=0x500E8, RxDMAStatus=0x500F0, RxFilterMode=0x500F4,
- TxMode=0x55000,
+ TxMode=0x55000, PerfFilterTable=0x56000, HashTable=0x56100,
+ TxGfpMem=0x58000, RxGfpMem=0x5a000,
};
/* Bits in the interrupt status/mask registers. */
enum intr_status_bits {
- IntrNormalSummary=0x8000, IntrAbnormalSummary=0x02000000,
- IntrRxDone=0x0300, IntrRxEmpty=0x10040, IntrRxPCIErr=0x80000,
- IntrTxDone=0x4000, IntrTxEmpty=0x1000, IntrTxPCIErr=0x80000,
- StatsMax=0x08000000, LinkChange=0xf0000000,
- IntrTxDataLow=0x00040000,
+ IntrLinkChange=0xf0000000, IntrStatsMax=0x08000000,
+ IntrAbnormalSummary=0x02000000, IntrGeneralTimer=0x01000000,
+ IntrSoftware=0x800000, IntrRxComplQ1Low=0x400000,
+ IntrTxComplQLow=0x200000, IntrPCI=0x100000,
+ IntrDMAErr=0x080000, IntrTxDataLow=0x040000,
+ IntrRxComplQ2Low=0x020000, IntrRxDescQ1Low=0x010000,
+ IntrNormalSummary=0x8000, IntrTxDone=0x4000,
+ IntrTxDMADone=0x2000, IntrTxEmpty=0x1000,
+ IntrEarlyRxQ2=0x0800, IntrEarlyRxQ1=0x0400,
+ IntrRxQ2Done=0x0200, IntrRxQ1Done=0x0100,
+ IntrRxGFPDead=0x80, IntrRxDescQ2Low=0x40,
+ IntrNoTxCsum=0x20, IntrTxBadID=0x10,
+ IntrHiPriTxBadID=0x08, IntrRxGfp=0x04,
+ IntrTxGfp=0x02, IntrPCIPad=0x01,
+ /* not quite bits */
+ IntrRxDone=IntrRxQ2Done | IntrRxQ1Done,
+ IntrRxEmpty=IntrRxDescQ1Low | IntrRxDescQ2Low,
+ IntrNormalMask=0xf0, IntrAbnormalMask=0x3f0e,
};
/* Bits in the RxFilterMode register. */
@@ -280,9 +428,40 @@
AcceptMulticast=0x10, AcceptMyPhys=0xE040,
};
+/* Bits in the TxDescCtrl register. */
+enum tx_ctrl_bits {
+ TxDescSpaceUnlim=0x00, TxDescSpace32=0x10, TxDescSpace64=0x20,
+ TxDescSpace128=0x30, TxDescSpace256=0x40,
+ TxDescType0=0x00, TxDescType1=0x01, TxDescType2=0x02,
+ TxDescType3=0x03, TxDescType4=0x04,
+ TxNoDMACompletion=0x08, TxDescQ64bit=0x80,
+ TxHiPriFIFOThreshShift=24, TxPadLenShift=16,
+ TxDMABurstSizeShift=8,
+};
+
+/* Bits in the RxDescQCtrl register. */
+enum rx_ctrl_bits {
+ RxBufferLenShift=16, RxMinDescrThreshShift=0,
+ RxPrefetchMode=0x8000, Rx2048QEntries=0x4000,
+ RxVariableQ=0x2000, RxDesc64bit=0x1000,
+ RxDescQAddr64bit=0x0100,
+ RxDescSpace4=0x000, RxDescSpace8=0x100,
+ RxDescSpace16=0x200, RxDescSpace32=0x300,
+ RxDescSpace64=0x400, RxDescSpace128=0x500,
+ RxConsumerWrEn=0x80,
+};
+
+/* Bits in the RxCompletionAddr register */
+enum rx_compl_bits {
+ RxComplQAddr64bit=0x80, TxComplProducerWrEn=0x40,
+ RxComplType0=0x00, RxComplType1=0x10,
+ RxComplType2=0x20, RxComplType3=0x30,
+ RxComplThreshShift=0,
+};
+
/* The Rx and Tx buffer descriptors. */
struct starfire_rx_desc {
- u32 rxaddr; /* Optionally 64 bits. */
+ u32 rxaddr; /* Optionally 64 bits. */
};
enum rx_desc_bits {
RxDescValid=1, RxDescEndRing=2,
@@ -291,42 +470,72 @@
/* Completion queue entry.
You must update the page allocation, init_ring and the shift count in rx()
if using a larger format. */
+#ifdef HAS_FIRMWARE
+#define csum_rx_status
+#endif /* HAS_FIRMWARE */
struct rx_done_desc {
- u32 status; /* Low 16 bits is length. */
+ u32 status; /* Low 16 bits is length. */
+#ifdef csum_rx_status
+ u32 status2; /* Low 16 bits is csum */
+#endif /* csum_rx_status */
#ifdef full_rx_status
u32 status2;
u16 vlanid;
- u16 csum; /* partial checksum */
+ u16 csum; /* partial checksum */
u32 timestamp;
-#endif
+#endif /* full_rx_status */
};
enum rx_done_bits {
RxOK=0x20000000, RxFIFOErr=0x10000000, RxBufQ2=0x08000000,
};
+#ifdef ZEROCOPY
+/* Type 0 Tx descriptor. */
+/* If more fragments are needed, don't forget to change the
+ descriptor spacing as well! */
+struct starfire_tx_desc {
+ u32 status;
+ u32 nbufs;
+ u32 first_addr;
+ u16 first_len;
+ u16 total_len;
+ struct {
+ u32 addr;
+ u32 len;
+ } frag[MAX_STARFIRE_FRAGS];
+};
+#else /* not ZEROCOPY */
/* Type 1 Tx descriptor. */
struct starfire_tx_desc {
- u32 status; /* Upper bits are status, lower 16 length. */
- u32 addr;
+ u32 status; /* Upper bits are status, lower 16 length. */
+ u32 first_addr;
};
+#endif /* not ZEROCOPY */
enum tx_desc_bits {
- TxDescID=0xB1010000, /* Also marks single fragment, add CRC. */
- TxDescIntr=0x08000000, TxRingWrap=0x04000000,
+ TxDescID=0xB0000000,
+ TxCRCEn=0x01000000, TxDescIntr=0x08000000,
+ TxRingWrap=0x04000000, TxCalTCP=0x02000000,
};
struct tx_done_report {
- u32 status; /* timestamp, index. */
+ u32 status; /* timestamp, index. */
#if 0
- u32 intrstatus; /* interrupt status */
+ u32 intrstatus; /* interrupt status */
#endif
};
-#define PRIV_ALIGN 15 /* Required alignment mask */
-struct ring_info {
+struct rx_ring_info {
struct sk_buff *skb;
dma_addr_t mapping;
};
+struct tx_ring_info {
+ struct sk_buff *skb;
+ dma_addr_t first_mapping;
+#ifdef ZEROCOPY
+ dma_addr_t frag_mapping[MAX_STARFIRE_FRAGS];
+#endif /* ZEROCOPY */
+};
-#define MII_CNT 4
+#define PHY_CNT 2
struct netdev_private {
/* Descriptor rings first for alignment. */
struct starfire_rx_desc *rx_ring;
@@ -334,66 +543,65 @@
dma_addr_t rx_ring_dma;
dma_addr_t tx_ring_dma;
/* The addresses of rx/tx-in-place skbuffs. */
- struct ring_info rx_info[RX_RING_SIZE];
- struct ring_info tx_info[TX_RING_SIZE];
- /* Pointers to completion queues (full pages). I should cache line pad..*/
- u8 pad0[100];
+ struct rx_ring_info rx_info[RX_RING_SIZE];
+ struct tx_ring_info tx_info[TX_RING_SIZE];
+ /* Pointers to completion queues (full pages). */
struct rx_done_desc *rx_done_q;
dma_addr_t rx_done_q_dma;
unsigned int rx_done;
struct tx_done_report *tx_done_q;
- unsigned int tx_done;
dma_addr_t tx_done_q_dma;
+ unsigned int tx_done;
struct net_device_stats stats;
- struct timer_list timer; /* Media monitoring timer. */
struct pci_dev *pci_dev;
/* Frequently used values: keep some adjacent for cache effect. */
- unsigned int cur_rx, dirty_rx; /* Producer/consumer ring indices */
+ unsigned int cur_rx, dirty_rx; /* Producer/consumer ring indices */
unsigned int cur_tx, dirty_tx;
- unsigned int rx_buf_sz; /* Based on MTU+slack. */
- unsigned int tx_full:1; /* The Tx queue is full. */
+ unsigned int rx_buf_sz; /* Based on MTU+slack. */
+ unsigned int tx_full:1, /* The Tx queue is full. */
/* These values are keep track of the transceiver/media in use. */
- unsigned int full_duplex:1, /* Full-duplex operation requested. */
- medialock:1, /* Xcvr set to fixed speed/duplex. */
- rx_flowctrl:1,
- tx_flowctrl:1; /* Use 802.3x flow control. */
- unsigned int default_port:4; /* Last dev->if_port value. */
+ autoneg:1, /* Autonegotiation allowed. */
+ full_duplex:1, /* Full-duplex operation. */
+ speed100:1; /* Set if speed == 100MBit. */
+ unsigned int intr_mitigation;
u32 tx_mode;
u8 tx_threshold;
/* MII transceiver section. */
- int mii_cnt; /* MII device addresses. */
- u16 advertising; /* NWay media advertisement */
- unsigned char phys[MII_CNT]; /* MII device addresses, only first one used. */
-};
-
-static int mdio_read(struct net_device *dev, int phy_id, int location);
-static void mdio_write(struct net_device *dev, int phy_id, int location, int value);
-static int netdev_open(struct net_device *dev);
-static void check_duplex(struct net_device *dev, int startup);
-static void netdev_timer(unsigned long data);
-static void tx_timeout(struct net_device *dev);
-static void init_ring(struct net_device *dev);
-static int start_tx(struct sk_buff *skb, struct net_device *dev);
-static void intr_handler(int irq, void *dev_instance, struct pt_regs *regs);
-static void netdev_error(struct net_device *dev, int intr_status);
-static int netdev_rx(struct net_device *dev);
-static void netdev_error(struct net_device *dev, int intr_status);
-static void set_rx_mode(struct net_device *dev);
+ u16 advertising; /* NWay media advertisement */
+ int phy_cnt; /* MII device addresses. */
+ unsigned char phys[PHY_CNT]; /* MII device addresses. */
+};
+
+static int mdio_read(struct net_device *dev, int phy_id, int location);
+static void mdio_write(struct net_device *dev, int phy_id, int location, int value);
+static int netdev_open(struct net_device *dev);
+static void check_duplex(struct net_device *dev);
+static void tx_timeout(struct net_device *dev);
+static void init_ring(struct net_device *dev);
+static int start_tx(struct sk_buff *skb, struct net_device *dev);
+static void intr_handler(int irq, void *dev_instance, struct pt_regs *regs);
+static void netdev_error(struct net_device *dev, int intr_status);
+static int netdev_rx(struct net_device *dev);
+static void netdev_error(struct net_device *dev, int intr_status);
+static void set_rx_mode(struct net_device *dev);
static struct net_device_stats *get_stats(struct net_device *dev);
-static int mii_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
-static int netdev_close(struct net_device *dev);
+static int netdev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
+static int netdev_close(struct net_device *dev);
+static void netdev_media_change(struct net_device *dev);
-static int __devinit starfire_init_one (struct pci_dev *pdev,
- const struct pci_device_id *ent)
+static int __devinit starfire_init_one(struct pci_dev *pdev,
+ const struct pci_device_id *ent)
{
struct netdev_private *np;
int i, irq, option, chip_idx = ent->driver_data;
struct net_device *dev;
static int card_idx = -1;
long ioaddr;
- int drv_flags, io_size = netdrv_tbl[chip_idx].io_size;
+ int drv_flags, io_size;
+ int boguscnt;
+ u8 cache;
/* when built into the kernel, we only print version if device is found */
#ifndef MODULE
@@ -403,38 +611,58 @@
#endif
card_idx++;
- option = card_idx < MAX_UNITS ? options[card_idx] : 0;
if (pci_enable_device (pdev))
return -EIO;
ioaddr = pci_resource_start (pdev, 0);
+ io_size = pci_resource_len (pdev, 0);
if (!ioaddr || ((pci_resource_flags (pdev, 0) & IORESOURCE_MEM) == 0)) {
- printk (KERN_ERR "starfire %d: no PCI MEM resources, aborting\n", card_idx);
+ printk (KERN_ERR DRV_NAME " %d: no PCI MEM resources, aborting\n", card_idx);
return -ENODEV;
}
-
+
dev = alloc_etherdev(sizeof(*np));
if (!dev) {
- printk (KERN_ERR "starfire %d: cannot alloc etherdev, aborting\n", card_idx);
+ printk (KERN_ERR DRV_NAME " %d: cannot alloc etherdev, aborting\n", card_idx);
return -ENOMEM;
}
SET_MODULE_OWNER(dev);
-
- irq = pdev->irq;
- if (pci_request_regions (pdev, "starfire"))
+ irq = pdev->irq;
+
+ if (pci_request_regions (pdev, dev->name)) {
+ printk (KERN_ERR DRV_NAME " %d: cannot reserve PCI resources, aborting\n", card_idx);
goto err_out_free_netdev;
+ }
ioaddr = (long) ioremap (ioaddr, io_size);
if (!ioaddr) {
- printk (KERN_ERR "starfire %d: cannot remap 0x%x @ 0x%lx, aborting\n",
+ printk (KERN_ERR DRV_NAME " %d: cannot remap 0x%x @ 0x%lx, aborting\n",
card_idx, io_size, ioaddr);
goto err_out_free_res;
}
pci_set_master (pdev);
-
+
+ /* set PCI cache size */
+ pci_read_config_byte(pdev, PCI_CACHE_LINE_SIZE, &cache);
+ if ((cache << 2) != SMP_CACHE_BYTES) {
+ printk(KERN_INFO " PCI cache line size set incorrectly "
+ "(%i bytes) by BIOS/FW, correcting to %i\n",
+ (cache << 2), SMP_CACHE_BYTES);
+ pci_write_config_byte(pdev, PCI_CACHE_LINE_SIZE,
+ SMP_CACHE_BYTES >> 2);
+ }
+
+#ifdef ZEROCOPY
+ /* Starfire can do SG and TCP/UDP checksumming */
+ dev->features |= NETIF_F_SG;
+#ifdef HAS_FIRMWARE
+ dev->features |= NETIF_F_IP_CSUM;
+#endif /* HAS_FIRMWARE */
+#endif /* ZEROCOPY */
+
/* Serial EEPROM reads are hidden by the hardware. */
for (i = 0; i < 6; i++)
dev->dev_addr[i] = readb(ioaddr + EEPROMCtrl + 20-i);
@@ -442,12 +670,28 @@
#if ! defined(final_version) /* Dump the EEPROM contents during development. */
if (debug > 4)
for (i = 0; i < 0x20; i++)
- printk("%2.2x%s", (unsigned int)readb(ioaddr + EEPROMCtrl + i),
- i % 16 != 15 ? " " : "\n");
+ printk("%2.2x%s",
+ (unsigned int)readb(ioaddr + EEPROMCtrl + i),
+ i % 16 != 15 ? " " : "\n");
#endif
+ /* Issue soft reset */
+ writel(0x8000, ioaddr + TxMode);
+ udelay(1000);
+ writel(0, ioaddr + TxMode);
+
/* Reset the chip to erase previous misconfiguration. */
writel(1, ioaddr + PCIDeviceConfig);
+ boguscnt = 1000;
+ while (--boguscnt > 0) {
+ udelay(10);
+ if ((readl(ioaddr + PCIDeviceConfig) & 1) == 0)
+ break;
+ }
+ if (boguscnt == 0)
+ printk("%s: chipset reset never completed!\n", dev->name);
+ /* wait a little longer */
+ udelay(1000);
dev->base_addr = ioaddr;
dev->irq = irq;
@@ -458,32 +702,31 @@
np->pci_dev = pdev;
drv_flags = netdrv_tbl[chip_idx].drv_flags;
+ option = card_idx < MAX_UNITS ? options[card_idx] : 0;
if (dev->mem_start)
option = dev->mem_start;
/* The lower four bits are the media type. */
- if (option > 0) {
- if (option & 0x200)
- np->full_duplex = 1;
- np->default_port = option & 15;
- if (np->default_port)
- np->medialock = 1;
- }
- if (card_idx < MAX_UNITS && full_duplex[card_idx] > 0)
+ if (option & 0x200)
+ np->full_duplex = 1;
+
+ if (card_idx < MAX_UNITS && full_duplex[card_idx] > 0)
np->full_duplex = 1;
if (np->full_duplex)
- np->medialock = 1;
+ np->autoneg = 0;
+ else
+ np->autoneg = 1;
+ np->speed100 = 1;
/* The chip-specific entries in the device structure. */
dev->open = &netdev_open;
dev->hard_start_xmit = &start_tx;
- dev->tx_timeout = &tx_timeout;
- dev->watchdog_timeo = TX_TIMEOUT;
+ init_tx_timer(dev, tx_timeout, TX_TIMEOUT);
dev->stop = &netdev_close;
dev->get_stats = &get_stats;
dev->set_multicast_list = &set_rx_mode;
- dev->do_ioctl = &mii_ioctl;
+ dev->do_ioctl = &netdev_ioctl;
if (mtu)
dev->mtu = mtu;
@@ -495,22 +738,35 @@
printk(KERN_INFO "%s: %s at 0x%lx, ",
dev->name, netdrv_tbl[chip_idx].name, ioaddr);
for (i = 0; i < 5; i++)
- printk("%2.2x:", dev->dev_addr[i]);
+ printk("%2.2x:", dev->dev_addr[i]);
printk("%2.2x, IRQ %d.\n", dev->dev_addr[i], irq);
if (drv_flags & CanHaveMII) {
int phy, phy_idx = 0;
- for (phy = 0; phy < 32 && phy_idx < MII_CNT; phy++) {
- int mii_status = mdio_read(dev, phy, 1);
- if (mii_status != 0xffff && mii_status != 0x0000) {
+ int mii_status;
+ for (phy = 0; phy < 32 && phy_idx < PHY_CNT; phy++) {
+ mdio_write(dev, phy, MII_BMCR, BMCR_RESET);
+ udelay(500);
+ boguscnt = 1000;
+ while (--boguscnt > 0)
+ if ((mdio_read(dev, phy, MII_BMCR) & BMCR_RESET) == 0)
+ break;
+ if (boguscnt == 0) {
+ printk("%s: PHY reset never completed!\n", dev->name);
+ continue;
+ }
+ mii_status = mdio_read(dev, phy, MII_BMSR);
+ if (mii_status != 0) {
np->phys[phy_idx++] = phy;
- np->advertising = mdio_read(dev, phy, 4);
+ np->advertising = mdio_read(dev, phy, MII_ADVERTISE);
printk(KERN_INFO "%s: MII PHY found at address %d, status "
"0x%4.4x advertising %4.4x.\n",
dev->name, phy, mii_status, np->advertising);
+ /* there can be only one PHY on-board */
+ break;
}
}
- np->mii_cnt = phy_idx;
+ np->phy_cnt = phy_idx;
}
return 0;
@@ -536,7 +792,11 @@
/* ??? Should we add a busy-wait here? */
do
result = readl(mdio_addr);
- while ((result & 0xC0000000) != 0x80000000 && --boguscnt >= 0);
+ while ((result & 0xC0000000) != 0x80000000 && --boguscnt > 0);
+ if (boguscnt == 0)
+ return 0;
+ if ((result & 0xffff) == 0xffff)
+ return 0;
return result & 0xffff;
}
@@ -557,48 +817,70 @@
/* Do we ever need to reset the chip??? */
+ COMPAT_MOD_INC_USE_COUNT;
+
retval = request_irq(dev->irq, &intr_handler, SA_SHIRQ, dev->name, dev);
- if (retval)
+ if (retval) {
+ COMPAT_MOD_DEC_USE_COUNT;
return retval;
+ }
/* Disable the Rx and Tx, and reset the chip. */
writel(0, ioaddr + GenCtrl);
writel(1, ioaddr + PCIDeviceConfig);
if (debug > 1)
printk(KERN_DEBUG "%s: netdev_open() irq %d.\n",
- dev->name, dev->irq);
+ dev->name, dev->irq);
/* Allocate the various queues, failing gracefully. */
if (np->tx_done_q == 0)
np->tx_done_q = pci_alloc_consistent(np->pci_dev, PAGE_SIZE, &np->tx_done_q_dma);
if (np->rx_done_q == 0)
- np->rx_done_q = pci_alloc_consistent(np->pci_dev, PAGE_SIZE, &np->rx_done_q_dma);
+ np->rx_done_q = pci_alloc_consistent(np->pci_dev, sizeof(struct rx_done_desc) * DONE_Q_SIZE, &np->rx_done_q_dma);
if (np->tx_ring == 0)
np->tx_ring = pci_alloc_consistent(np->pci_dev, PAGE_SIZE, &np->tx_ring_dma);
if (np->rx_ring == 0)
np->rx_ring = pci_alloc_consistent(np->pci_dev, PAGE_SIZE, &np->rx_ring_dma);
- if (np->tx_done_q == 0 || np->rx_done_q == 0
- || np->rx_ring == 0 || np->tx_ring == 0) {
+ if (np->tx_done_q == 0 || np->rx_done_q == 0
+ || np->rx_ring == 0 || np->tx_ring == 0) {
if (np->tx_done_q)
pci_free_consistent(np->pci_dev, PAGE_SIZE,
- np->tx_done_q, np->tx_done_q_dma);
+ np->tx_done_q, np->tx_done_q_dma);
if (np->rx_done_q)
- pci_free_consistent(np->pci_dev, PAGE_SIZE,
- np->rx_done_q, np->rx_done_q_dma);
+ pci_free_consistent(np->pci_dev, sizeof(struct rx_done_desc) * DONE_Q_SIZE,
+ np->rx_done_q, np->rx_done_q_dma);
if (np->tx_ring)
pci_free_consistent(np->pci_dev, PAGE_SIZE,
- np->tx_ring, np->tx_ring_dma);
+ np->tx_ring, np->tx_ring_dma);
if (np->rx_ring)
pci_free_consistent(np->pci_dev, PAGE_SIZE,
- np->rx_ring, np->rx_ring_dma);
+ np->rx_ring, np->rx_ring_dma);
+ COMPAT_MOD_DEC_USE_COUNT;
return -ENOMEM;
}
init_ring(dev);
/* Set the size of the Rx buffers. */
- writel((np->rx_buf_sz<<16) | 0xA000, ioaddr + RxDescQCtrl);
-
+ writel((np->rx_buf_sz << RxBufferLenShift) |
+ (0 << RxMinDescrThreshShift) |
+ RxPrefetchMode | RxVariableQ |
+ RxDescSpace4,
+ ioaddr + RxDescQCtrl);
+
+#ifdef ZEROCOPY
+ /* Set Tx descriptor to type 0 and spacing to 64 bytes. */
+ writel((2 << TxHiPriFIFOThreshShift) |
+ (0 << TxPadLenShift) |
+ (4 << TxDMABurstSizeShift) |
+ TxDescSpace64 | TxDescType0,
+ ioaddr + TxDescCtrl);
+#else /* not ZEROCOPY */
/* Set Tx descriptor to type 1 and padding to 0 bytes. */
- writel(0x02000401, ioaddr + TxDescCtrl);
+ writel((2 << TxHiPriFIFOThreshShift) |
+ (0 << TxPadLenShift) |
+ (4 << TxDMABurstSizeShift) |
+ TxDescSpaceUnlim | TxDescType1,
+ ioaddr + TxDescCtrl);
+#endif /* not ZEROCOPY */
#if defined(ADDR_64BITS) && defined(__alpha__)
/* XXX We really need a 64-bit PCI dma interfaces too... -DaveM */
@@ -613,17 +895,34 @@
writel(np->tx_ring_dma, ioaddr + TxRingPtr);
writel(np->tx_done_q_dma, ioaddr + TxCompletionAddr);
- writel(np->rx_done_q_dma, ioaddr + RxCompletionAddr);
+#ifdef full_rx_status
+ writel(np->rx_done_q_dma |
+ RxComplType3 |
+ (0 << RxComplThreshShift),
+ ioaddr + RxCompletionAddr);
+#else /* not full_rx_status */
+#ifdef csum_rx_status
+ writel(np->rx_done_q_dma |
+ RxComplType2 |
+ (0 << RxComplThreshShift),
+ ioaddr + RxCompletionAddr);
+#else /* not csum_rx_status */
+ writel(np->rx_done_q_dma |
+ RxComplType0 |
+ (0 << RxComplThreshShift),
+ ioaddr + RxCompletionAddr);
+#endif /* not csum_rx_status */
+#endif /* not full_rx_status */
if (debug > 1)
- printk(KERN_DEBUG "%s: Filling in the station address.\n", dev->name);
+ printk(KERN_DEBUG "%s: Filling in the station address.\n", dev->name);
/* Fill both the unused Tx SA register and the Rx perfect filter. */
for (i = 0; i < 6; i++)
writeb(dev->dev_addr[i], ioaddr + StationAddr + 5-i);
for (i = 0; i < 16; i++) {
u16 *eaddrs = (u16 *)dev->dev_addr;
- long setup_frm = ioaddr + 0x56000 + i*16;
+ long setup_frm = ioaddr + PerfFilterTable + i * 16;
writew(cpu_to_be16(eaddrs[2]), setup_frm); setup_frm += 4;
writew(cpu_to_be16(eaddrs[1]), setup_frm); setup_frm += 4;
writew(cpu_to_be16(eaddrs[0]), setup_frm); setup_frm += 8;
@@ -631,116 +930,93 @@
/* Initialize other registers. */
/* Configure the PCI bus bursts and FIFO thresholds. */
- np->tx_mode = 0; /* Initialized when TxMode set. */
+ np->tx_mode = 0x0C04; /* modified when link is up. */
np->tx_threshold = 4;
writel(np->tx_threshold, ioaddr + TxThreshold);
- writel(interrupt_mitigation, ioaddr + IntrTimerCtrl);
- if (dev->if_port == 0)
- dev->if_port = np->default_port;
+ interrupt_mitigation &= 0x1f;
+ np->intr_mitigation = interrupt_mitigation;
+ writel(np->intr_mitigation, ioaddr + IntrTimerCtrl);
+ netif_start_if(dev);
netif_start_queue(dev);
if (debug > 1)
- printk(KERN_DEBUG "%s: Setting the Rx and Tx modes.\n", dev->name);
+ printk(KERN_DEBUG "%s: Setting the Rx and Tx modes.\n", dev->name);
set_rx_mode(dev);
- np->advertising = mdio_read(dev, np->phys[0], 4);
- check_duplex(dev, 1);
+ np->advertising = mdio_read(dev, np->phys[0], MII_ADVERTISE);
+ check_duplex(dev);
+
+ /* Enable GPIO interrupts on link change */
+ writel(0x0f00ff00, ioaddr + GPIOCtrl);
/* Set the interrupt mask and enable PCI interrupts. */
- writel(IntrRxDone | IntrRxEmpty | IntrRxPCIErr |
- IntrTxDone | IntrTxEmpty | IntrTxPCIErr |
- StatsMax | LinkChange | IntrNormalSummary | IntrAbnormalSummary
- | 0x0010 , ioaddr + IntrEnable);
+ writel(IntrRxDone | IntrRxEmpty | IntrDMAErr |
+ IntrTxDone | IntrStatsMax | IntrLinkChange |
+ IntrNormalSummary | IntrAbnormalSummary |
+ IntrRxGFPDead | IntrNoTxCsum | IntrTxBadID,
+ ioaddr + IntrEnable);
writel(0x00800000 | readl(ioaddr + PCIDeviceConfig),
- ioaddr + PCIDeviceConfig);
+ ioaddr + PCIDeviceConfig);
- /* Enable the Rx and Tx units. */
+#ifdef HAS_FIRMWARE
+ /* Load Rx/Tx firmware into the frame processors */
+ for (i = 0; i < FIRMWARE_RX_SIZE * 2; i++)
+ writel(cpu_to_le32(firmware_rx[i]), ioaddr + RxGfpMem + i * 4);
+ for (i = 0; i < FIRMWARE_TX_SIZE * 2; i++)
+ writel(cpu_to_le32(firmware_tx[i]), ioaddr + TxGfpMem + i * 4);
+ /* Enable the Rx and Tx units, and the Rx/Tx frame processors. */
+ writel(0x003F, ioaddr + GenCtrl);
+#else /* not HAS_FIRMWARE */
+ /* Enable the Rx and Tx units only. */
writel(0x000F, ioaddr + GenCtrl);
+#endif /* not HAS_FIRMWARE */
if (debug > 2)
printk(KERN_DEBUG "%s: Done netdev_open().\n",
- dev->name);
-
- /* Set the timer to check for link beat. */
- init_timer(&np->timer);
- np->timer.expires = jiffies + 3*HZ;
- np->timer.data = (unsigned long)dev;
- np->timer.function = &netdev_timer; /* timer handler */
- add_timer(&np->timer);
+ dev->name);
return 0;
}
-static void check_duplex(struct net_device *dev, int startup)
+
+static void check_duplex(struct net_device *dev)
{
struct netdev_private *np = dev->priv;
- long ioaddr = dev->base_addr;
- int new_tx_mode ;
+ u16 reg0;
- new_tx_mode = 0x0C04 | (np->tx_flowctrl ? 0x0800:0)
- | (np->rx_flowctrl ? 0x0400:0);
- if (np->medialock) {
- if (np->full_duplex)
- new_tx_mode |= 2;
- } else {
- int mii_reg5 = mdio_read(dev, np->phys[0], 5);
- int negotiated = mii_reg5 & np->advertising;
- int duplex = (negotiated & 0x0100) || (negotiated & 0x01C0) == 0x0040;
- if (duplex)
- new_tx_mode |= 2;
- if (np->full_duplex != duplex) {
- np->full_duplex = duplex;
- if (debug > 1)
- printk(KERN_INFO "%s: Setting %s-duplex based on MII #%d"
- " negotiated capability %4.4x.\n", dev->name,
- duplex ? "full" : "half", np->phys[0], negotiated);
- }
- }
- if (new_tx_mode != np->tx_mode) {
- np->tx_mode = new_tx_mode;
- writel(np->tx_mode | 0x8000, ioaddr + TxMode);
- writel(np->tx_mode, ioaddr + TxMode);
- }
-}
+ mdio_write(dev, np->phys[0], MII_ADVERTISE, np->advertising);
+ mdio_write(dev, np->phys[0], MII_BMCR, BMCR_RESET);
+ udelay(500);
+ while (mdio_read(dev, np->phys[0], MII_BMCR) & BMCR_RESET);
-static void netdev_timer(unsigned long data)
-{
- struct net_device *dev = (struct net_device *)data;
- struct netdev_private *np = dev->priv;
- long ioaddr = dev->base_addr;
- int next_tick = 60*HZ; /* Check before driver release. */
+ reg0 = mdio_read(dev, np->phys[0], MII_BMCR);
- if (debug > 3) {
- printk(KERN_DEBUG "%s: Media selection timer tick, status %8.8x.\n",
- dev->name, (int)readl(ioaddr + IntrStatus));
- }
- check_duplex(dev, 0);
-#if ! defined(final_version)
- /* This is often falsely triggered. */
- if (readl(ioaddr + IntrStatus) & 1) {
- int new_status = readl(ioaddr + IntrStatus);
- /* Bogus hardware IRQ: Fake an interrupt handler call. */
- if (new_status & 1) {
- printk(KERN_ERR "%s: Interrupt blocked, status %8.8x/%8.8x.\n",
- dev->name, new_status, (int)readl(ioaddr + IntrStatus));
- intr_handler(dev->irq, dev, 0);
- }
+ if (np->autoneg) {
+ reg0 |= BMCR_ANENABLE | BMCR_ANRESTART;
+ } else {
+ reg0 &= ~(BMCR_ANENABLE | BMCR_ANRESTART);
+ if (np->speed100)
+ reg0 |= BMCR_SPEED100;
+ if (np->full_duplex)
+ reg0 |= BMCR_FULLDPLX;
+ printk(KERN_DEBUG "%s: Link forced to %sMbit %s-duplex\n",
+ dev->name,
+ np->speed100 ? "100" : "10",
+ np->full_duplex ? "full" : "half");
}
-#endif
-
- np->timer.expires = jiffies + next_tick;
- add_timer(&np->timer);
+ mdio_write(dev, np->phys[0], MII_BMCR, reg0);
}
+
static void tx_timeout(struct net_device *dev)
{
struct netdev_private *np = dev->priv;
long ioaddr = dev->base_addr;
printk(KERN_WARNING "%s: Transmit timed out, status %8.8x,"
- " resetting...\n", dev->name, (int)readl(ioaddr + IntrStatus));
+ " resetting...\n", dev->name, (int)readl(ioaddr + IntrStatus));
#ifndef __alpha__
{
@@ -756,21 +1032,20 @@
#endif
/* Perhaps we should reinitialize the hardware here. */
- dev->if_port = 0;
/* Stop and restart the chip's Tx processes . */
/* Trigger an immediate transmit demand. */
dev->trans_start = jiffies;
np->stats.tx_errors++;
- return;
+ netif_wake_queue(dev);
}
/* Initialize the Rx and Tx rings, along with various 'dev' bits. */
static void init_ring(struct net_device *dev)
{
- struct netdev_private *np = (struct netdev_private *)dev->priv;
+ struct netdev_private *np = dev->priv;
int i;
np->tx_full = 0;
@@ -810,7 +1085,14 @@
for (i = 0; i < TX_RING_SIZE; i++) {
np->tx_info[i].skb = NULL;
- np->tx_info[i].mapping = 0;
+ np->tx_info[i].first_mapping = 0;
+#ifdef ZEROCOPY
+ {
+ int j;
+ for (j = 0; j < MAX_STARFIRE_FRAGS; j++)
+ np->tx_info[i].frag_mapping[j] = 0;
+ }
+#endif /* ZEROCOPY */
np->tx_ring[i].status = 0;
}
return;
@@ -820,6 +1102,11 @@
{
struct netdev_private *np = dev->priv;
unsigned int entry;
+#ifdef ZEROCOPY
+ int i;
+#endif
+
+ kick_tx_timer(dev, tx_timeout, TX_TIMEOUT);
/* Caution: the write order is important here, set the field
with the "ownership" bits last. */
@@ -827,26 +1114,87 @@
/* Calculate the next Tx descriptor entry. */
entry = np->cur_tx % TX_RING_SIZE;
+#if defined(ZEROCOPY) && defined(HAS_FIRMWARE) && defined(HAS_BROKEN_FIRMWARE)
+ {
+ int has_bad_length = 0;
+
+ if (skb_first_frag_len(skb) == 1)
+ has_bad_length = 1;
+ else {
+ for (i = 0; i < skb_shinfo(skb)->nr_frags; i++)
+ if (skb_shinfo(skb)->frags[i].size == 1) {
+ has_bad_length = 1;
+ break;
+ }
+ }
+
+ if (has_bad_length)
+ skb_checksum_help(skb);
+ }
+#endif /* ZEROCOPY && HAS_FIRMWARE && HAS_BROKEN_FIRMWARE */
+
np->tx_info[entry].skb = skb;
- np->tx_info[entry].mapping =
- pci_map_single(np->pci_dev, skb->data, skb->len, PCI_DMA_TODEVICE);
+ np->tx_info[entry].first_mapping =
+ pci_map_single(np->pci_dev, skb->data, skb_first_frag_len(skb), PCI_DMA_TODEVICE);
+
+ np->tx_ring[entry].first_addr = cpu_to_le32(np->tx_info[entry].first_mapping);
+#ifdef ZEROCOPY
+ np->tx_ring[entry].first_len = cpu_to_le32(skb_first_frag_len(skb));
+ np->tx_ring[entry].total_len = cpu_to_le32(skb->len);
+ /* Add "| TxDescIntr" to generate Tx-done interrupts. */
+ np->tx_ring[entry].status = cpu_to_le32(TxDescID | TxCRCEn);
+ np->tx_ring[entry].nbufs = cpu_to_le32(skb_shinfo(skb)->nr_frags + 1);
+#else /* not ZEROCOPY */
+ /* Add "| TxDescIntr" to generate Tx-done interrupts. */
+ np->tx_ring[entry].status = cpu_to_le32(skb->len | TxDescID | TxCRCEn | 1 << 16);
+#endif /* not ZEROCOPY */
+
+ if (entry >= TX_RING_SIZE-1) /* Wrap ring */
+ np->tx_ring[entry].status |= cpu_to_le32(TxRingWrap | TxDescIntr);
+
+#ifdef ZEROCOPY
+ if (skb->ip_summed == CHECKSUM_HW)
+ np->tx_ring[entry].status |= cpu_to_le32(TxCalTCP);
+#endif /* ZEROCOPY */
- np->tx_ring[entry].addr = cpu_to_le32(np->tx_info[entry].mapping);
- /* Add "| TxDescIntr" to generate Tx-done interrupts. */
- np->tx_ring[entry].status = cpu_to_le32(skb->len | TxDescID);
if (debug > 5) {
- printk(KERN_DEBUG "%s: Tx #%d slot %d %8.8x %8.8x.\n",
- dev->name, np->cur_tx, entry,
- le32_to_cpu(np->tx_ring[entry].status),
- le32_to_cpu(np->tx_ring[entry].addr));
+#ifdef ZEROCOPY
+ printk(KERN_DEBUG "%s: Tx #%d slot %d status %8.8x nbufs %d len %4.4x/%4.4x.\n",
+ dev->name, np->cur_tx, entry,
+ le32_to_cpu(np->tx_ring[entry].status),
+ le32_to_cpu(np->tx_ring[entry].nbufs),
+ le32_to_cpu(np->tx_ring[entry].first_len),
+ le32_to_cpu(np->tx_ring[entry].total_len));
+#else /* not ZEROCOPY */
+ printk(KERN_DEBUG "%s: Tx #%d slot %d status %8.8x.\n",
+ dev->name, np->cur_tx, entry,
+ le32_to_cpu(np->tx_ring[entry].status));
+#endif /* not ZEROCOPY */
+ }
+
+#ifdef ZEROCOPY
+ for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
+ skb_frag_t *this_frag = &skb_shinfo(skb)->frags[i];
+
+ /* we already have the proper value in entry */
+ np->tx_info[entry].frag_mapping[i] =
+ pci_map_single(np->pci_dev, page_address(this_frag->page) + this_frag->page_offset, this_frag->size, PCI_DMA_TODEVICE);
+
+ np->tx_ring[entry].frag[i].addr = cpu_to_le32(np->tx_info[entry].frag_mapping[i]);
+ np->tx_ring[entry].frag[i].len = cpu_to_le32(this_frag->size);
+ if (debug > 5) {
+ printk(KERN_DEBUG "%s: Tx #%d frag %d len %4.4x.\n",
+ dev->name, np->cur_tx, i,
+ le32_to_cpu(np->tx_ring[entry].frag[i].len));
+ }
}
+#endif /* ZEROCOPY */
+
np->cur_tx++;
-#if 1
- if (entry >= TX_RING_SIZE-1) { /* Wrap ring */
- np->tx_ring[entry].status |= cpu_to_le32(TxRingWrap | TxDescIntr);
+
+ if (entry >= TX_RING_SIZE-1) /* Wrap ring */
entry = -1;
- }
-#endif
+ entry++;
/* Non-x86: explicitly flush descriptor cache lines here. */
/* Ensure everything is written back above before the transmit is
@@ -854,18 +1202,15 @@
wmb();
/* Update the producer index. */
- writel(++entry, dev->base_addr + TxProducerIdx);
+ writel(entry * (sizeof(struct starfire_tx_desc) / 8), dev->base_addr + TxProducerIdx);
if (np->cur_tx - np->dirty_tx >= TX_RING_SIZE - 1) {
np->tx_full = 1;
netif_stop_queue(dev);
}
+
dev->trans_start = jiffies;
- if (debug > 4) {
- printk(KERN_DEBUG "%s: Transmit frame #%d queued in slot %d.\n",
- dev->name, np->cur_tx, entry);
- }
return 0;
}
@@ -877,24 +1222,25 @@
struct netdev_private *np;
long ioaddr;
int boguscnt = max_interrupt_work;
+ int consumer;
+ int tx_status;
#ifndef final_version /* Can never occur. */
if (dev == NULL) {
- printk (KERN_ERR "Netdev interrupt handler(): IRQ %d for unknown "
- "device.\n", irq);
+ printk (KERN_ERR "Netdev interrupt handler(): IRQ %d for unknown device.\n", irq);
return;
}
#endif
ioaddr = dev->base_addr;
- np = (struct netdev_private *)dev->priv;
+ np = dev->priv;
do {
u32 intr_status = readl(ioaddr + IntrClear);
if (debug > 4)
printk(KERN_DEBUG "%s: Interrupt status %4.4x.\n",
- dev->name, intr_status);
+ dev->name, intr_status);
if (intr_status == 0)
break;
@@ -905,77 +1251,99 @@
/* Scavenge the skbuff list based on the Tx-done queue.
There are redundant checks here that may be cleaned up
after the driver has proven to be reliable. */
- {
- int consumer = readl(ioaddr + TxConsumerIdx);
- int tx_status;
- if (debug > 4)
- printk(KERN_DEBUG "%s: Tx Consumer index is %d.\n",
- dev->name, consumer);
+ consumer = readl(ioaddr + TxConsumerIdx);
+ if (debug > 4)
+ printk(KERN_DEBUG "%s: Tx Consumer index is %d.\n",
+ dev->name, consumer);
#if 0
- if (np->tx_done >= 250 || np->tx_done == 0)
- printk(KERN_DEBUG "%s: Tx completion entry %d is %8.8x, "
- "%d is %8.8x.\n", dev->name,
- np->tx_done, le32_to_cpu(np->tx_done_q[np->tx_done].status),
- (np->tx_done+1) & (DONE_Q_SIZE-1),
- le32_to_cpu(np->tx_done_q[(np->tx_done+1)&(DONE_Q_SIZE-1)].status));
+ if (np->tx_done >= 250 || np->tx_done == 0)
+ printk(KERN_DEBUG "%s: Tx completion entry %d is %8.8x, %d is %8.8x.\n",
+ dev->name, np->tx_done,
+ le32_to_cpu(np->tx_done_q[np->tx_done].status),
+ (np->tx_done+1) & (DONE_Q_SIZE-1),
+ le32_to_cpu(np->tx_done_q[(np->tx_done+1)&(DONE_Q_SIZE-1)].status));
#endif
- while ((tx_status = le32_to_cpu(np->tx_done_q[np->tx_done].status))
- != 0) {
- if (debug > 4)
- printk(KERN_DEBUG "%s: Tx completion entry %d is %8.8x.\n",
- dev->name, np->tx_done, tx_status);
- if ((tx_status & 0xe0000000) == 0xa0000000) {
- np->stats.tx_packets++;
- } else if ((tx_status & 0xe0000000) == 0x80000000) {
- struct sk_buff *skb;
- u16 entry = tx_status; /* Implicit truncate */
- entry >>= 3;
- skb = np->tx_info[entry].skb;
- pci_unmap_single(np->pci_dev,
- np->tx_info[entry].mapping,
- skb->len, PCI_DMA_TODEVICE);
+ while ((tx_status = le32_to_cpu(np->tx_done_q[np->tx_done].status)) != 0) {
+ if (debug > 4)
+ printk(KERN_DEBUG "%s: Tx completion entry %d is %8.8x.\n",
+ dev->name, np->tx_done, tx_status);
+ if ((tx_status & 0xe0000000) == 0xa0000000) {
+ np->stats.tx_packets++;
+ } else if ((tx_status & 0xe0000000) == 0x80000000) {
+ struct sk_buff *skb;
+#ifdef ZEROCOPY
+ int i;
+#endif /* ZEROCOPY */
+ u16 entry = tx_status; /* Implicit truncate */
+ entry /= sizeof(struct starfire_tx_desc);
+
+ skb = np->tx_info[entry].skb;
+ np->tx_info[entry].skb = NULL;
+ pci_unmap_single(np->pci_dev,
+ np->tx_info[entry].first_mapping,
+ skb_first_frag_len(skb),
+ PCI_DMA_TODEVICE);
+ np->tx_info[entry].first_mapping = 0;
- /* Scavenge the descriptor. */
- dev_kfree_skb_irq(skb);
- np->tx_info[entry].skb = NULL;
- np->tx_info[entry].mapping = 0;
- np->dirty_tx++;
+#ifdef ZEROCOPY
+ for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
+ pci_unmap_single(np->pci_dev,
+ np->tx_info[entry].frag_mapping[i],
+ skb_shinfo(skb)->frags[i].size,
+ PCI_DMA_TODEVICE);
+ np->tx_info[entry].frag_mapping[i] = 0;
}
- np->tx_done_q[np->tx_done].status = 0;
- np->tx_done = (np->tx_done+1) & (DONE_Q_SIZE-1);
+#endif /* ZEROCOPY */
+
+ /* Scavenge the descriptor. */
+ dev_kfree_skb_irq(skb);
+
+ np->dirty_tx++;
}
- writew(np->tx_done, ioaddr + CompletionQConsumerIdx + 2);
+ np->tx_done_q[np->tx_done].status = 0;
+ np->tx_done = (np->tx_done+1) & (DONE_Q_SIZE-1);
}
+ writew(np->tx_done, ioaddr + CompletionQConsumerIdx + 2);
+
if (np->tx_full && np->cur_tx - np->dirty_tx < TX_RING_SIZE - 4) {
/* The ring is no longer full, wake the queue. */
np->tx_full = 0;
netif_wake_queue(dev);
}
+ /* Stats overflow */
+ if (intr_status & IntrStatsMax) {
+ get_stats(dev);
+ }
+
+ /* Media change interrupt. */
+ if (intr_status & IntrLinkChange)
+ netdev_media_change(dev);
+
/* Abnormal error summary/uncommon events handlers. */
if (intr_status & IntrAbnormalSummary)
netdev_error(dev, intr_status);
if (--boguscnt < 0) {
printk(KERN_WARNING "%s: Too much work at interrupt, "
- "status=0x%4.4x.\n",
- dev->name, intr_status);
+ "status=0x%4.4x.\n",
+ dev->name, intr_status);
break;
}
} while (1);
if (debug > 4)
printk(KERN_DEBUG "%s: exiting interrupt, status=%#4.4x.\n",
- dev->name, (int)readl(ioaddr + IntrStatus));
+ dev->name, (int)readl(ioaddr + IntrStatus));
#ifndef final_version
/* Code that should never be run! Remove after testing.. */
{
static int stopit = 10;
- if (!netif_running(dev) && --stopit < 0) {
+ if (!netif_running(dev) && --stopit < 0) {
printk(KERN_ERR "%s: Emergency stop, looping startup interrupt.\n",
- dev->name);
+ dev->name);
free_irq(irq, dev);
}
}
@@ -992,83 +1360,99 @@
if (np->rx_done_q == 0) {
printk(KERN_ERR "%s: rx_done_q is NULL! rx_done is %d. %p.\n",
- dev->name, np->rx_done, np->tx_done_q);
+ dev->name, np->rx_done, np->tx_done_q);
return 0;
}
/* If EOP is set on the next entry, it's a new packet. Send it up. */
while ((desc_status = le32_to_cpu(np->rx_done_q[np->rx_done].status)) != 0) {
+ struct sk_buff *skb;
+ u16 pkt_len;
+ int entry;
+
if (debug > 4)
- printk(KERN_DEBUG " netdev_rx() status of %d was %8.8x.\n",
- np->rx_done, desc_status);
+ printk(KERN_DEBUG " netdev_rx() status of %d was %8.8x.\n", np->rx_done, desc_status);
if (--boguscnt < 0)
break;
if ( ! (desc_status & RxOK)) {
/* There was a error. */
if (debug > 2)
- printk(KERN_DEBUG " netdev_rx() Rx error was %8.8x.\n",
- desc_status);
+ printk(KERN_DEBUG " netdev_rx() Rx error was %8.8x.\n", desc_status);
np->stats.rx_errors++;
if (desc_status & RxFIFOErr)
np->stats.rx_fifo_errors++;
- } else {
- struct sk_buff *skb;
- u16 pkt_len = desc_status; /* Implicitly Truncate */
- int entry = (desc_status >> 16) & 0x7ff;
+ goto next_rx;
+ }
+
+ pkt_len = desc_status; /* Implicitly Truncate */
+ entry = (desc_status >> 16) & 0x7ff;
#ifndef final_version
- if (debug > 4)
- printk(KERN_DEBUG " netdev_rx() normal Rx pkt length %d"
- ", bogus_cnt %d.\n",
- pkt_len, boguscnt);
+ if (debug > 4)
+ printk(KERN_DEBUG " netdev_rx() normal Rx pkt length %d, bogus_cnt %d.\n", pkt_len, boguscnt);
#endif
- /* Check if the packet is long enough to accept without copying
- to a minimally-sized skbuff. */
- if (PKT_SHOULD_COPY(pkt_len)
- && (skb = dev_alloc_skb(pkt_len + 2)) != NULL) {
- skb->dev = dev;
- skb_reserve(skb, 2); /* 16 byte align the IP header */
- pci_dma_sync_single(np->pci_dev,
- np->rx_info[entry].mapping,
- pkt_len, PCI_DMA_FROMDEVICE);
+ /* Check if the packet is long enough to accept without copying
+ to a minimally-sized skbuff. */
+ if (pkt_len < rx_copybreak
+ && (skb = dev_alloc_skb(pkt_len + 2)) != NULL) {
+ skb->dev = dev;
+ skb_reserve(skb, 2); /* 16 byte align the IP header */
+ pci_dma_sync_single(np->pci_dev,
+ np->rx_info[entry].mapping,
+ pkt_len, PCI_DMA_FROMDEVICE);
#if HAS_IP_COPYSUM /* Call copy + cksum if available. */
- eth_copy_and_sum(skb, np->rx_info[entry].skb->tail, pkt_len, 0);
- skb_put(skb, pkt_len);
+ eth_copy_and_sum(skb, np->rx_info[entry].skb->tail, pkt_len, 0);
+ skb_put(skb, pkt_len);
#else
- memcpy(skb_put(skb, pkt_len), np->rx_info[entry].skb->tail,
- pkt_len);
+ memcpy(skb_put(skb, pkt_len), np->rx_info[entry].skb->tail, pkt_len);
#endif
- } else {
- char *temp;
+ } else {
+ char *temp;
- pci_unmap_single(np->pci_dev, np->rx_info[entry].mapping, np->rx_buf_sz, PCI_DMA_FROMDEVICE);
- skb = np->rx_info[entry].skb;
- temp = skb_put(skb, pkt_len);
- np->rx_info[entry].skb = NULL;
- np->rx_info[entry].mapping = 0;
- }
-#ifndef final_version /* Remove after testing. */
- /* You will want this info for the initial debug. */
- if (debug > 5)
- printk(KERN_DEBUG " Rx data %2.2x:%2.2x:%2.2x:%2.2x:%2.2x:"
- "%2.2x %2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x %2.2x%2.2x "
- "%d.%d.%d.%d.\n",
- skb->data[0], skb->data[1], skb->data[2], skb->data[3],
- skb->data[4], skb->data[5], skb->data[6], skb->data[7],
- skb->data[8], skb->data[9], skb->data[10],
- skb->data[11], skb->data[12], skb->data[13],
- skb->data[14], skb->data[15], skb->data[16],
- skb->data[17]);
-#endif
- skb->protocol = eth_type_trans(skb, dev);
-#ifdef full_rx_status
- if (le32_to_cpu(np->rx_done_q[np->rx_done].status2) & 0x01000000)
- skb->ip_summed = CHECKSUM_UNNECESSARY;
+ pci_unmap_single(np->pci_dev, np->rx_info[entry].mapping, np->rx_buf_sz, PCI_DMA_FROMDEVICE);
+ skb = np->rx_info[entry].skb;
+ temp = skb_put(skb, pkt_len);
+ np->rx_info[entry].skb = NULL;
+ np->rx_info[entry].mapping = 0;
+ }
+#ifndef final_version /* Remove after testing. */
+ /* You will want this info for the initial debug. */
+ if (debug > 5)
+ printk(KERN_DEBUG " Rx data %2.2x:%2.2x:%2.2x:%2.2x:%2.2x:"
+ "%2.2x %2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x %2.2x%2.2x "
+ "%d.%d.%d.%d.\n",
+ skb->data[0], skb->data[1], skb->data[2], skb->data[3],
+ skb->data[4], skb->data[5], skb->data[6], skb->data[7],
+ skb->data[8], skb->data[9], skb->data[10],
+ skb->data[11], skb->data[12], skb->data[13],
+ skb->data[14], skb->data[15], skb->data[16],
+ skb->data[17]);
#endif
- netif_rx(skb);
- dev->last_rx = jiffies;
- np->stats.rx_packets++;
+ skb->protocol = eth_type_trans(skb, dev);
+#if defined(full_rx_status) || defined(csum_rx_status)
+ if (le32_to_cpu(np->rx_done_q[np->rx_done].status2) & 0x01000000) {
+ skb->ip_summed = CHECKSUM_UNNECESSARY;
}
+ /*
+ * This feature doesn't seem to be working, at least
+ * with the two firmware versions I have. If the GFP sees
+ * a fragment, it either ignores it completely, or reports
+ * "bad checksum" on it.
+ *
+ * Maybe I missed something -- corrections are welcome.
+ * Until then, the printk stays. :-) -Ion
+ */
+ else if (le32_to_cpu(np->rx_done_q[np->rx_done].status2) & 0x00400000) {
+ skb->ip_summed = CHECKSUM_HW;
+ skb->csum = le32_to_cpu(np->rx_done_q[np->rx_done].status2) & 0xffff;
+ printk(KERN_DEBUG "%s: checksum_hw, status2 = %x\n", dev->name, np->rx_done_q[np->rx_done].status2);
+ }
+#endif
+ netif_rx(skb);
+ dev->last_rx = jiffies;
+ np->stats.rx_packets++;
+
+next_rx:
np->cur_rx++;
np->rx_done_q[np->rx_done].status = 0;
np->rx_done = (np->rx_done + 1) & (DONE_Q_SIZE-1);
@@ -1083,10 +1467,10 @@
skb = dev_alloc_skb(np->rx_buf_sz);
np->rx_info[entry].skb = skb;
if (skb == NULL)
- break; /* Better luck next round. */
+ break; /* Better luck next round. */
np->rx_info[entry].mapping =
pci_map_single(np->pci_dev, skb->tail, np->rx_buf_sz, PCI_DMA_FROMDEVICE);
- skb->dev = dev; /* Mark as being used by this device. */
+ skb->dev = dev; /* Mark as being used by this device. */
np->rx_ring[entry].rxaddr =
cpu_to_le32(np->rx_info[entry].mapping | RxDescValid);
}
@@ -1096,42 +1480,94 @@
writew(entry, dev->base_addr + RxDescQIdx);
}
- if (debug > 5
- || memcmp(np->pad0, np->pad0 + 1, sizeof(np->pad0) -1))
- printk(KERN_DEBUG " exiting netdev_rx() status of %d was %8.8x %d.\n",
- np->rx_done, desc_status,
- memcmp(np->pad0, np->pad0 + 1, sizeof(np->pad0) -1));
+ if (debug > 5)
+ printk(KERN_DEBUG " exiting netdev_rx() status of %d was %8.8x.\n",
+ np->rx_done, desc_status);
/* Restart Rx engine if stopped. */
return 0;
}
-static void netdev_error(struct net_device *dev, int intr_status)
+
+static void netdev_media_change(struct net_device *dev)
{
struct netdev_private *np = dev->priv;
+ long ioaddr = dev->base_addr;
+ u16 reg0, reg1, reg4, reg5;
+ u32 new_tx_mode;
- if (intr_status & LinkChange) {
- printk(KERN_NOTICE "%s: Link changed: Autonegotiation advertising"
- " %4.4x partner %4.4x.\n", dev->name,
- mdio_read(dev, np->phys[0], 4),
- mdio_read(dev, np->phys[0], 5));
- check_duplex(dev, 0);
- }
- if (intr_status & StatsMax) {
- get_stats(dev);
+ /* reset status first */
+ mdio_read(dev, np->phys[0], MII_BMCR);
+ mdio_read(dev, np->phys[0], MII_BMSR);
+
+ reg0 = mdio_read(dev, np->phys[0], MII_BMCR);
+ reg1 = mdio_read(dev, np->phys[0], MII_BMSR);
+
+ if (reg1 & BMSR_LSTATUS) {
+ /* link is up */
+ if (reg0 & BMCR_ANENABLE) {
+ /* autonegotiation is enabled */
+ reg4 = mdio_read(dev, np->phys[0], MII_ADVERTISE);
+ reg5 = mdio_read(dev, np->phys[0], MII_LPA);
+ if (reg4 & ADVERTISE_100FULL && reg5 & LPA_100FULL) {
+ np->speed100 = 1;
+ np->full_duplex = 1;
+ } else if (reg4 & ADVERTISE_100HALF && reg5 & LPA_100HALF) {
+ np->speed100 = 1;
+ np->full_duplex = 0;
+ } else if (reg4 & ADVERTISE_10FULL && reg5 & LPA_10FULL) {
+ np->speed100 = 0;
+ np->full_duplex = 1;
+ } else {
+ np->speed100 = 0;
+ np->full_duplex = 0;
+ }
+ } else {
+ /* autonegotiation is disabled */
+ if (reg0 & BMCR_SPEED100)
+ np->speed100 = 1;
+ else
+ np->speed100 = 0;
+ if (reg0 & BMCR_FULLDPLX)
+ np->full_duplex = 1;
+ else
+ np->full_duplex = 0;
+ }
+ printk(KERN_DEBUG "%s: Link is up, running at %sMbit %s-duplex\n",
+ dev->name,
+ np->speed100 ? "100" : "10",
+ np->full_duplex ? "full" : "half");
+
+ new_tx_mode = np->tx_mode & ~0x2; /* duplex setting */
+ if (np->full_duplex)
+ new_tx_mode |= 2;
+ if (np->tx_mode != new_tx_mode) {
+ np->tx_mode = new_tx_mode;
+ writel(np->tx_mode | 0x8000, ioaddr + TxMode);
+ writel(np->tx_mode, ioaddr + TxMode);
+ }
+ } else {
+ printk(KERN_DEBUG "%s: Link is down\n", dev->name);
}
+}
+
+
+static void netdev_error(struct net_device *dev, int intr_status)
+{
+ struct netdev_private *np = dev->priv;
+
/* Came close to underrunning the Tx FIFO, increase threshold. */
- if (intr_status & IntrTxDataLow)
+ if (intr_status & IntrTxDataLow) {
writel(++np->tx_threshold, dev->base_addr + TxThreshold);
- if ((intr_status &
- ~(IntrAbnormalSummary|LinkChange|StatsMax|IntrTxDataLow|1)) && debug)
+ printk(KERN_NOTICE "%s: Increasing Tx FIFO threshold to %d bytes\n",
+ dev->name, np->tx_threshold * 16);
+ }
+ if ((intr_status & ~(IntrNormalMask | IntrAbnormalSummary | IntrLinkChange | IntrStatsMax | IntrTxDataLow | IntrPCIPad)) && debug)
printk(KERN_ERR "%s: Something Wicked happened! %4.4x.\n",
- dev->name, intr_status);
- /* Hmmmmm, it's not clear how to recover from PCI faults. */
- if (intr_status & IntrTxPCIErr)
+ dev->name, intr_status);
+ /* Hmmmmm, it's not clear how to recover from DMA faults. */
+ if (intr_status & IntrDMAErr)
np->stats.tx_fifo_errors++;
- if (intr_status & IntrRxPCIErr)
- np->stats.rx_fifo_errors++;
}
static struct net_device_stats *get_stats(struct net_device *dev)
@@ -1146,12 +1582,13 @@
np->stats.tx_aborted_errors =
readl(ioaddr + 0x57024) + readl(ioaddr + 0x57028);
np->stats.tx_window_errors = readl(ioaddr + 0x57018);
- np->stats.collisions = readl(ioaddr + 0x57004) + readl(ioaddr + 0x57008);
+ np->stats.collisions =
+ readl(ioaddr + 0x57004) + readl(ioaddr + 0x57008);
/* The chip only need report frame silently dropped. */
- np->stats.rx_dropped += readw(ioaddr + RxDMAStatus);
+ np->stats.rx_dropped += readw(ioaddr + RxDMAStatus);
writew(0, ioaddr + RxDMAStatus);
- np->stats.rx_crc_errors = readl(ioaddr + 0x5703C);
+ np->stats.rx_crc_errors = readl(ioaddr + 0x5703C);
np->stats.rx_frame_errors = readl(ioaddr + 0x57040);
np->stats.rx_length_errors = readl(ioaddr + 0x57058);
np->stats.rx_missed_errors = readl(ioaddr + 0x5707C);
@@ -1192,19 +1629,17 @@
struct dev_mc_list *mclist;
int i;
- if (dev->flags & IFF_PROMISC) { /* Set promiscuous. */
- /* Unconditionally log net taps. */
- printk(KERN_NOTICE "%s: Promiscuous mode enabled.\n", dev->name);
+ if (dev->flags & IFF_PROMISC) { /* Set promiscuous. */
rx_mode = AcceptBroadcast|AcceptAllMulticast|AcceptAll|AcceptMyPhys;
} else if ((dev->mc_count > multicast_filter_limit)
- || (dev->flags & IFF_ALLMULTI)) {
+ || (dev->flags & IFF_ALLMULTI)) {
/* Too many to match, or accept all multicasts. */
rx_mode = AcceptBroadcast|AcceptAllMulticast|AcceptMyPhys;
} else if (dev->mc_count <= 15) {
- /* Use the 16 element perfect filter. */
- long filter_addr = ioaddr + 0x56000 + 1*16;
- for (i = 1, mclist = dev->mc_list; mclist && i <= dev->mc_count;
- i++, mclist = mclist->next) {
+ /* Use the 16 element perfect filter, skip first entry. */
+ long filter_addr = ioaddr + PerfFilterTable + 1 * 16;
+ for (i = 1, mclist = dev->mc_list; mclist && i <= dev->mc_count;
+ i++, mclist = mclist->next) {
u16 *eaddrs = (u16 *)mclist->dmi_addr;
writew(cpu_to_be16(eaddrs[2]), filter_addr); filter_addr += 4;
writew(cpu_to_be16(eaddrs[1]), filter_addr); filter_addr += 4;
@@ -1224,53 +1659,169 @@
memset(mc_filter, 0, sizeof(mc_filter));
for (i = 0, mclist = dev->mc_list; mclist && i < dev->mc_count;
i++, mclist = mclist->next) {
- set_bit(ether_crc_le(ETH_ALEN, mclist->dmi_addr) >> 23, mc_filter);
+ int bit_nr = ether_crc_le(ETH_ALEN, mclist->dmi_addr) >> 23;
+ __u32 *fptr = (__u32 *) &mc_filter[(bit_nr >> 4) & ~1];
+
+ *fptr |= cpu_to_le32(1 << (bit_nr & 31));
}
- /* Clear the perfect filter list. */
- filter_addr = ioaddr + 0x56000 + 1*16;
+ /* Clear the perfect filter list, skip first entry. */
+ filter_addr = ioaddr + PerfFilterTable + 1 * 16;
for (i = 1; i < 16; i++) {
writew(0xffff, filter_addr); filter_addr += 4;
writew(0xffff, filter_addr); filter_addr += 4;
writew(0xffff, filter_addr); filter_addr += 8;
}
- for (filter_addr=ioaddr + 0x56100, i=0; i < 32; filter_addr+= 16, i++)
+ for (filter_addr = ioaddr + HashTable, i=0; i < 32; filter_addr+= 16, i++)
writew(mc_filter[i], filter_addr);
rx_mode = AcceptBroadcast | AcceptMulticast | AcceptMyPhys;
}
writel(rx_mode, ioaddr + RxFilterMode);
}
-static int mii_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
+
+
+static int netdev_ethtool_ioctl(struct net_device *dev, void *useraddr)
+{
+ struct ethtool_cmd ecmd;
+ struct netdev_private *np = dev->priv;
+
+ if (copy_from_user(&ecmd, useraddr, sizeof(ecmd)))
+ return -EFAULT;
+
+ switch (ecmd.cmd) {
+ case ETHTOOL_GSET:
+ ecmd.supported =
+ SUPPORTED_10baseT_Half |
+ SUPPORTED_10baseT_Full |
+ SUPPORTED_100baseT_Half |
+ SUPPORTED_100baseT_Full |
+ SUPPORTED_Autoneg |
+ SUPPORTED_MII;
+
+ ecmd.advertising = ADVERTISED_MII;
+ if (np->advertising & ADVERTISE_10HALF)
+ ecmd.advertising |= ADVERTISED_10baseT_Half;
+ if (np->advertising & ADVERTISE_10FULL)
+ ecmd.advertising |= ADVERTISED_10baseT_Full;
+ if (np->advertising & ADVERTISE_100HALF)
+ ecmd.advertising |= ADVERTISED_100baseT_Half;
+ if (np->advertising & ADVERTISE_100FULL)
+ ecmd.advertising |= ADVERTISED_100baseT_Full;
+ if (np->autoneg) {
+ ecmd.advertising |= ADVERTISED_Autoneg;
+ ecmd.autoneg = AUTONEG_ENABLE;
+ } else
+ ecmd.autoneg = AUTONEG_DISABLE;
+
+ ecmd.port = PORT_MII;
+ ecmd.transceiver = XCVR_INTERNAL;
+ ecmd.phy_address = np->phys[0];
+ ecmd.speed = np->speed100 ? SPEED_100 : SPEED_10;
+ ecmd.duplex = np->full_duplex ? DUPLEX_FULL : DUPLEX_HALF;
+ ecmd.maxtxpkt = TX_RING_SIZE;
+ ecmd.maxrxpkt = np->intr_mitigation; /* not 100% accurate */
+
+
+ if (copy_to_user(useraddr, &ecmd, sizeof(ecmd)))
+ return -EFAULT;
+ return 0;
+
+ case ETHTOOL_SSET: {
+ u16 autoneg, speed100, full_duplex;
+
+ autoneg = (ecmd.autoneg == AUTONEG_ENABLE);
+ speed100 = (ecmd.speed == SPEED_100);
+ full_duplex = (ecmd.duplex == DUPLEX_FULL);
+
+ np->autoneg = autoneg;
+ if (speed100 != np->speed100 ||
+ full_duplex != np->full_duplex) {
+ np->speed100 = speed100;
+ np->full_duplex = full_duplex;
+ /* change advertising bits */
+ np->advertising &= ~(ADVERTISE_10HALF |
+ ADVERTISE_10FULL |
+ ADVERTISE_100HALF |
+ ADVERTISE_100FULL |
+ ADVERTISE_100BASE4);
+ if (speed100) {
+ if (full_duplex)
+ np->advertising |= ADVERTISE_100FULL;
+ else
+ np->advertising |= ADVERTISE_100HALF;
+ } else {
+ if (full_duplex)
+ np->advertising |= ADVERTISE_10FULL;
+ else
+ np->advertising |= ADVERTISE_10HALF;
+ }
+ }
+ check_duplex(dev);
+ return 0;
+ }
+
+ case ETHTOOL_GDRVINFO: {
+ struct ethtool_drvinfo info;
+ memset(&info, 0, sizeof(info));
+ info.cmd = ecmd.cmd;
+ strcpy(info.driver, DRV_NAME);
+ strcpy(info.version, DRV_VERSION);
+ *info.fw_version = 0;
+ strcpy(info.bus_info, PCI_SLOT_NAME(np->pci_dev));
+ if (copy_to_user(useraddr, &info, sizeof(info)))
+ return -EFAULT;
+ return 0;
+ }
+
+ default:
+ return -EOPNOTSUPP;
+ }
+}
+
+
+
+static int netdev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
{
struct netdev_private *np = dev->priv;
- u16 *data = (u16 *)&rq->ifr_data;
+ struct mii_ioctl_data *data = (struct mii_ioctl_data *)&rq->ifr_data;
switch(cmd) {
- case SIOCDEVPRIVATE: /* Get the address of the PHY in use. */
- data[0] = np->phys[0] & 0x1f;
+ case SIOCETHTOOL:
+ return netdev_ethtool_ioctl(dev, (void *) rq->ifr_data);
+
+ /* Legacy mii-diag interface */
+ case SIOCGMIIPHY: /* Get address of MII PHY in use. */
+ case SIOCDEVPRIVATE: /* for binary compat, remove in 2.5 */
+ data->phy_id = np->phys[0] & 0x1f;
/* Fall Through */
- case SIOCDEVPRIVATE+1: /* Read the specified MII register. */
- data[3] = mdio_read(dev, data[0] & 0x1f, data[1] & 0x1f);
+
+ case SIOCGMIIREG: /* Read MII PHY register. */
+ case SIOCDEVPRIVATE+1: /* for binary compat, remove in 2.5 */
+ data->val_out = mdio_read(dev, data->phy_id & 0x1f, data->reg_num & 0x1f);
return 0;
- case SIOCDEVPRIVATE+2: /* Write the specified MII register */
+
+ case SIOCSMIIREG: /* Write MII PHY register. */
+ case SIOCDEVPRIVATE+2: /* for binary compat, remove in 2.5 */
if (!capable(CAP_NET_ADMIN))
return -EPERM;
- if (data[0] == np->phys[0]) {
- u16 value = data[2];
- switch (data[1]) {
+ if (data->phy_id == np->phys[0]) {
+ u16 value = data->val_in;
+ switch (data->reg_num) {
case 0:
if (value & 0x9000) /* Autonegotiation. */
- np->medialock = 0;
+ np->autoneg = 1;
else {
np->full_duplex = (value & 0x0100) ? 1 : 0;
- np->medialock = 1;
+ np->autoneg = 0;
}
break;
- case 4: np->advertising = value; break;
+ case 4:
+ np->advertising = value;
+ break;
}
- check_duplex(dev, 0);
+ check_duplex(dev);
}
- mdio_write(dev, data[0] & 0x1f, data[1] & 0x1f, data[2]);
+ mdio_write(dev, data->phy_id & 0x1f, data->reg_num & 0x1f, data->val_in);
return 0;
default:
return -EOPNOTSUPP;
@@ -1284,8 +1835,7 @@
int i;
netif_stop_queue(dev);
-
- del_timer_sync(&np->timer);
+ netif_stop_if(dev);
if (debug > 1) {
printk(KERN_DEBUG "%s: Shutting down ethercard, Intr status %4.4x.\n",
@@ -1305,15 +1855,15 @@
np->tx_ring_dma);
for (i = 0; i < 8 /* TX_RING_SIZE is huge! */; i++)
printk(KERN_DEBUG " #%d desc. %8.8x %8.8x -> %8.8x.\n",
- i, le32_to_cpu(np->tx_ring[i].status),
- le32_to_cpu(np->tx_ring[i].addr),
- le32_to_cpu(np->tx_done_q[i].status));
+ i, le32_to_cpu(np->tx_ring[i].status),
+ le32_to_cpu(np->tx_ring[i].first_addr),
+ le32_to_cpu(np->tx_done_q[i].status));
printk(KERN_DEBUG " Rx ring at %8.8x -> %p:\n",
- np->rx_ring_dma, np->rx_done_q);
+ np->rx_ring_dma, np->rx_done_q);
if (np->rx_done_q)
for (i = 0; i < 8 /* RX_RING_SIZE */; i++) {
printk(KERN_DEBUG " #%d desc. %8.8x -> %8.8x\n",
- i, le32_to_cpu(np->rx_ring[i].rxaddr), le32_to_cpu(np->rx_done_q[i].status));
+ i, le32_to_cpu(np->rx_ring[i].rxaddr), le32_to_cpu(np->rx_done_q[i].status));
}
}
#endif /* __i386__ debugging only */
@@ -1332,16 +1882,32 @@
}
for (i = 0; i < TX_RING_SIZE; i++) {
struct sk_buff *skb = np->tx_info[i].skb;
- if (skb != NULL) {
- pci_unmap_single(np->pci_dev,
- np->tx_info[i].mapping,
- skb->len, PCI_DMA_TODEVICE);
- dev_kfree_skb(skb);
- }
+#ifdef ZEROCOPY
+ int j;
+#endif /* ZEROCOPY */
+ if (skb == NULL)
+ continue;
+ pci_unmap_single(np->pci_dev,
+ np->tx_info[i].first_mapping,
+ skb_first_frag_len(skb), PCI_DMA_TODEVICE);
+ np->tx_info[i].first_mapping = 0;
+ dev_kfree_skb(skb);
np->tx_info[i].skb = NULL;
- np->tx_info[i].mapping = 0;
+#ifdef ZEROCOPY
+ for (j = 0; j < MAX_STARFIRE_FRAGS; j++)
+ if (np->tx_info[i].frag_mapping[j]) {
+ pci_unmap_single(np->pci_dev,
+ np->tx_info[i].frag_mapping[j],
+ skb_shinfo(skb)->frags[j].size,
+ PCI_DMA_TODEVICE);
+ np->tx_info[i].frag_mapping[j] = 0;
+ } else
+ break;
+#endif /* ZEROCOPY */
}
+ COMPAT_MOD_DEC_USE_COUNT;
+
return 0;
}
@@ -1350,7 +1916,7 @@
{
struct net_device *dev = pci_get_drvdata(pdev);
struct netdev_private *np;
-
+
if (!dev)
BUG();
@@ -1358,7 +1924,7 @@
unregister_netdev(dev);
iounmap((char *)dev->base_addr);
- pci_release_regions (pdev);
+ pci_release_regions(pdev);
if (np->tx_done_q)
pci_free_consistent(np->pci_dev, PAGE_SIZE,
@@ -1380,7 +1946,7 @@
static struct pci_driver starfire_driver = {
- name: "starfire",
+ name: DRV_NAME,
probe: starfire_init_one,
remove: starfire_remove_one,
id_table: starfire_pci_tbl,
@@ -1409,10 +1975,9 @@
/*
* Local variables:
- * compile-command: "gcc -DMODULE -Wall -Wstrict-prototypes -O6 -c starfire.c"
- * simple-compile-command: "gcc -DMODULE -O6 -c starfire.c"
- * c-indent-level: 4
- * c-basic-offset: 4
- * tab-width: 4
+ * compile-command: "gcc -DMODULE -Wall -Wstrict-prototypes -O2 -c starfire.c"
+ * simple-compile-command: "gcc -DMODULE -O2 -c starfire.c"
+ * c-basic-offset: 8
+ * tab-width: 8
* End:
*/
FUNET's LINUX-ADM group, linux-adm@nic.funet.fi
TCL-scripts by Sam Shen (who was at: slshen@lbl.gov)