Hi Alan,
As promised, here is the same driver ported to 2.2.x. I used the
definitions in kcomp.h, as well as the excellent stuff from emu10k1's
wrapper.
The patch was generated agains 2.2.18, but I checked that it applies
cleanly to 2.2.19pre8.
BTW, would you consider a patch adding more stuff to kcomp.h?
Thanks,
Ion
--
It is better to keep your mouth shut and be thought a fool,
than to open it and remove all doubt.
-----------------------------
diff -urNX diff_kernel_excludes
/usr/src/local/linux-2.2.18-vanilla/Documentation/Configure.help
linux-2.2.18/Documentation/Configure.help
--- /usr/src/local/linux-2.2.18-vanilla/Documentation/Configure.help Sun Dec 10
16:49:41 2000
+++ linux-2.2.18/Documentation/Configure.help Wed Feb 7 19:40:42 2001
@@ -6238,6 +6238,18 @@
If you don't have this card, of course say N.
+Adaptec Starfire support (EXPERIMENTAL)
+CONFIG_ADAPTEC_STARFIRE
+ Say Y here if you have an Adaptec Starfire (or DuraLAN) PCI network
+ adapter. The DuraLAN chip is used on the 64 bit PCI boards from
+ Adaptec e.g. the ANA-6922A. The older 32 bit boards use the tulip
+ driver.
+
+ If you want to compile this driver as a module ( = code which can be
+ inserted in and removed from the running kernel whenever you want),
+ say M here and read Documentation/modules.txt. This is recommended.
+ The module will be called starfire.o.
+
Alteon AceNIC/3Com 3C985/NetGear GA620 Gigabit support
CONFIG_ACENIC
Say Y here if you have an Alteon AceNIC or 3Com 3C985 PCI Gigabit
diff -urNX diff_kernel_excludes /usr/src/local/linux-2.2.18-vanilla/MAINTAINERS
linux-2.2.18/MAINTAINERS
--- /usr/src/local/linux-2.2.18-vanilla/MAINTAINERS Sun Dec 10 16:49:41 2000
+++ linux-2.2.18/MAINTAINERS Wed Feb 7 19:34:25 2001
@@ -916,6 +916,11 @@
W: http://www.stallion.com
S: Supported
+STARFIRE/DURALAN NETWORK DRIVER
+P: Ion Badulescu
+M: [EMAIL PROTECTED]
+S: Maintained
+
STARMODE RADIO IP (STRIP) PROTOCOL DRIVER
W: http://mosquitonet.Stanford.EDU/strip.html
S: Unsupported ?
diff -urNX diff_kernel_excludes
/usr/src/local/linux-2.2.18-vanilla/drivers/net/Config.in
linux-2.2.18/drivers/net/Config.in
--- /usr/src/local/linux-2.2.18-vanilla/drivers/net/Config.in Sun Dec 10 16:49:42
2000
+++ linux-2.2.18/drivers/net/Config.in Wed Feb 7 17:56:02 2001
@@ -132,6 +132,7 @@
if [ "$CONFIG_NET_EISA" = "y" ]; then
tristate 'AMD PCnet32 (VLB and PCI) support' CONFIG_PCNET32
if [ "$CONFIG_EXPERIMENTAL" = "y" ]; then
+ tristate 'Adaptec Starfire support (EXPERIMENTAL)' CONFIG_ADAPTEC_STARFIRE
tristate 'Ansel Communications EISA 3200 support (EXPERIMENTAL)' CONFIG_AC3200
fi
tristate 'Apricot Xen-II on board Ethernet' CONFIG_APRICOT
diff -urNX diff_kernel_excludes
/usr/src/local/linux-2.2.18-vanilla/drivers/net/Makefile
linux-2.2.18/drivers/net/Makefile
--- /usr/src/local/linux-2.2.18-vanilla/drivers/net/Makefile Sun Dec 10 16:49:42
2000
+++ linux-2.2.18/drivers/net/Makefile Wed Feb 7 17:57:21 2001
@@ -742,6 +742,14 @@
endif
endif
+ifeq ($(CONFIG_ADAPTEC_STARFIRE),y)
+L_OBJS += starfire.o
+else
+ ifeq ($(CONFIG_ADAPTEC_STARFIRE),m)
+ M_OBJS += starfire.o
+ endif
+endif
+
ifeq ($(CONFIG_AC3200),y)
L_OBJS += ac3200.o
CONFIG_8390_BUILTIN = y
diff -urNX diff_kernel_excludes
/usr/src/local/linux-2.2.18-vanilla/drivers/net/starfire.c
linux-2.2.18/drivers/net/starfire.c
--- /usr/src/local/linux-2.2.18-vanilla/drivers/net/starfire.c Wed Dec 31 16:00:00
1969
+++ linux-2.2.18/drivers/net/starfire.c Wed Feb 7 19:33:56 2001
@@ -0,0 +1,1903 @@
+/* starfire.c: Linux device driver for the Adaptec Starfire network adapter. */
+/*
+ Written 1998-2000 by Donald Becker.
+
+ 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
+ retain the authorship, copyright and license notice. This file is not
+ a complete program and may only be used when the entire operating
+ system is licensed under the GPL.
+
+ The author may be reached as [EMAIL PROTECTED], or C/O
+ Scyld Computing Corporation
+ 410 Severn Ave., Suite 210
+ Annapolis MD 21403
+
+ Support and updates available at
+ http://www.scyld.com/network/starfire.html
+
+ -----------------------------------------------------------
+
+ Linux kernel-specific changes:
+
+ LK1.1.1 (jgarzik):
+ - Use PCI driver interface
+ - Fix MOD_xxx races
+ - softnet fixups
+
+ LK1.1.2 (jgarzik):
+ - Merge Becker version 0.15
+
+ LK1.1.3 (Andrew Morton)
+ - Timer cleanups
+
+ LK1.1.4 (jgarzik):
+ - Merge Becker version 1.03
+
+ LK1.2.1 (Ion Badulescu <[EMAIL PROTECTED]>)
+ - 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
+*/
+
+/* These identify the driver base version and may not be removed. */
+static const char version1[] =
+"starfire.c:v1.03 7/26/2000 Written by Donald Becker <[EMAIL PROTECTED]>\n";
+static const char version2[] =
+" Updates and info at http://www.scyld.com/network/starfire.html\n";
+
+static const char version3[] =
+" (unofficial 2.2.x kernel port, version 1.2.2, February 07, 2001)\n";
+
+/* The user-configurable values.
+ These may be modified when a driver module is loaded.*/
+
+/*
+ * Adaptec's license for their Novell drivers (which is where I got the
+ * firmware files) does not allow to redistribute them. Thus, we can't
+ * include them with this driver.
+ *
+ * However, an end-user is allowed to download and use them, after
+ * converting them to C header files using starfire_firmware.pl.
+ * Once that's done, the #undef 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 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
+ */
+#undef ZEROCOPY
+
+/* Used for tuning interrupt latency vs. overhead. */
+static int interrupt_mitigation = 0x0;
+
+static int debug = 1; /* 1 normal messages, 0 quiet .. 7 verbose. */
+static int max_interrupt_work = 20;
+static int mtu = 0;
+/* 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;
+
+/* Set the copy breakpoint for the copy-only-tiny-frames scheme.
+ Setting to > 1518 effectively disables this feature. */
+static int rx_copybreak = 0;
+
+/* 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};
+
+/* Operational parameters that are set at compile time. */
+
+/* The "native" ring sizes are either 256 or 2048.
+ However in some modes a descriptor may be marked to wrap the ring earlier.
+ The driver allocates a single page for each descriptor ring, constraining
+ the maximum size in an architecture-dependent way.
+*/
+#define RX_RING_SIZE 256
+#define TX_RING_SIZE 32
+/* The completion queues are fixed at 1024 entries i.e. 4K or 8KB. */
+#define DONE_Q_SIZE 1024
+
+/* Operational parameters that usually are not changed. */
+/* Time in jiffies before concluding the transmitter is hung. */
+#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
+ *
+ * Neither does the Alpha. -Ion
+ */
+#if defined(__ia64__) || defined(__alpha__)
+#define PKT_SHOULD_COPY(pkt_len) 1
+#else
+#define PKT_SHOULD_COPY(pkt_len) (pkt_len < rx_copybreak)
+#endif
+
+#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!
+#warning See the last lines of the source file.
+#error You must compile this driver with "-O".
+#endif
+
+#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 <asm/processor.h> /* Processor type for cache alignment. */
+#include <asm/bitops.h>
+#include <asm/io.h>
+
+#include <linux/version.h>
+#if LINUX_VERSION_CODE < 0x20300
+#include <linux/kcomp.h>
+
+static LIST_HEAD(pci_drivers);
+
+struct pci_driver_mapping {
+ struct pci_dev *dev;
+ struct pci_driver *drv;
+ void *driver_data;
+};
+
+struct pci_device_id {
+ unsigned int vendor, device;
+ unsigned int subvendor, subdevice;
+ unsigned int class, class_mask;
+ unsigned long driver_data;
+};
+
+struct pci_driver {
+ struct list_head node;
+ struct pci_dev *dev;
+ char *name;
+ const struct pci_device_id *id_table; /* NULL if wants all devices */
+ int (*probe)(struct pci_dev *dev, const struct pci_device_id *id); /*
+New device inserted */
+ void (*remove)(struct pci_dev *dev); /* Device removed (NULL if not a
+hot-plug capable driver) */
+ void (*suspend)(struct pci_dev *dev); /* Device suspended */
+ void (*resume)(struct pci_dev *dev); /* Device woken up */
+};
+
+#define PCI_MAX_MAPPINGS 16
+static struct pci_driver_mapping drvmap [PCI_MAX_MAPPINGS] = { { NULL, } , };
+
+#define __devinit
+#define __devinitdata
+#define __devexit
+#define MODULE_DEVICE_TABLE(foo,bar)
+#define PCI_ANY_ID (~0)
+#define IORESOURCE_MEM 2
+#define PCI_DMA_FROMDEVICE 0
+#define PCI_DMA_TODEVICE 0
+
+#define request_mem_region(addr, size, name) ((void *)1)
+#define release_mem_region(addr, size)
+#define del_timer_sync(timer) del_timer(timer)
+
+static inline void *pci_alloc_consistent(struct pci_dev *hwdev, size_t size,
+
+dma_addr_t *dma_handle)
+{
+ void *virt_ptr;
+
+ virt_ptr = kmalloc(size, GFP_KERNEL);
+ *dma_handle = virt_to_bus(virt_ptr);
+ return virt_ptr;
+}
+#define pci_free_consistent(cookie, size, ptr, dma_ptr) kfree(ptr)
+#define pci_map_single(cookie, address, size, dir) virt_to_bus(address)
+#define pci_unmap_single(cookie, address, size, dir)
+#define pci_dma_sync_single(cookie, address, size, dir)
+#undef pci_resource_flags
+#define pci_resource_flags(dev, i) \
+ ((dev->base_address[i] & IORESOURCE_IO) ? IORESOURCE_IO : IORESOURCE_MEM)
+
+void * pci_get_drvdata (struct pci_dev *dev)
+{
+ int i;
+
+ for (i = 0; i < PCI_MAX_MAPPINGS; i++)
+ if (drvmap[i].dev == dev)
+ return drvmap[i].driver_data;
+
+ return NULL;
+}
+
+void pci_set_drvdata (struct pci_dev *dev, void *driver_data)
+{
+ int i;
+
+ for (i = 0; i < PCI_MAX_MAPPINGS; i++)
+ if (drvmap[i].dev == dev) {
+ drvmap[i].driver_data = driver_data;
+ return;
+ }
+}
+
+const struct pci_device_id *
+pci_compat_match_device(const struct pci_device_id *ids, struct pci_dev *dev)
+{
+ u16 subsystem_vendor, subsystem_device;
+
+ pci_read_config_word(dev, PCI_SUBSYSTEM_VENDOR_ID, &subsystem_vendor);
+ pci_read_config_word(dev, PCI_SUBSYSTEM_ID, &subsystem_device);
+
+ while (ids->vendor || ids->subvendor || ids->class_mask) {
+ if ((ids->vendor == PCI_ANY_ID || ids->vendor == dev->vendor) &&
+ (ids->device == PCI_ANY_ID || ids->device == dev->device) &&
+ (ids->subvendor == PCI_ANY_ID || ids->subvendor ==
+subsystem_vendor) &&
+ (ids->subdevice == PCI_ANY_ID || ids->subdevice ==
+subsystem_device) &&
+ !((ids->class ^ dev->class) & ids->class_mask))
+ return ids;
+ ids++;
+ }
+ return NULL;
+}
+
+static int
+pci_announce_device(struct pci_driver *drv, struct pci_dev *dev)
+{
+ const struct pci_device_id *id;
+ int found, i;
+
+ if (drv->id_table) {
+ id = pci_compat_match_device(drv->id_table, dev);
+ if (!id)
+ return 0;
+ } else
+ id = NULL;
+
+ found = 0;
+ for (i = 0; i < PCI_MAX_MAPPINGS && !found; i++)
+ if (!drvmap[i].dev) {
+ drvmap[i].dev = dev;
+ drvmap[i].drv = drv;
+ found = 1;
+ }
+
+ if (drv->probe(dev, id) >= 0) {
+ if(found)
+ return 1;
+ } else {
+ drvmap[i - 1].dev = NULL;
+ }
+ return 0;
+}
+
+int
+pci_register_driver(struct pci_driver *drv)
+{
+ struct pci_dev *dev;
+ int count = 0, found, i;
+#ifdef CONFIG_PCI
+ list_add_tail(&drv->node, &pci_drivers);
+ for (dev = pci_devices; dev; dev = dev->next) {
+ found = 0;
+ for (i = 0; i < PCI_MAX_MAPPINGS && !found; i++)
+ if (drvmap[i].dev == dev)
+ found = 1;
+ if (!found)
+ count += pci_announce_device(drv, dev);
+ }
+#endif
+ return count;
+}
+
+void
+pci_unregister_driver(struct pci_driver *drv)
+{
+ struct pci_dev *dev;
+ int i, found;
+#ifdef CONFIG_PCI
+ list_del(&drv->node);
+ for (dev = pci_devices; dev; dev = dev->next) {
+ found = 0;
+ for (i = 0; i < PCI_MAX_MAPPINGS && !found; i++)
+ if (drvmap[i].dev == dev)
+ found = 1;
+ if (found) {
+ if (drv->remove)
+ drv->remove(dev);
+ drvmap[i - 1].dev = NULL;
+ }
+ }
+#endif
+}
+
+void *compat_request_region (unsigned long start, unsigned long n, const char *name)
+{
+ if (check_region (start, n) != 0)
+ return NULL;
+ request_region (start, n, name);
+ return (void *) 1;
+}
+
+static inline int pci_module_init(struct pci_driver *drv)
+{
+ int rc = pci_register_driver (drv);
+
+ if (rc > 0)
+ return 0;
+
+ /* if we get here, we need to clean up pci driver instance
+ * and return some sort of error */
+ pci_unregister_driver (drv);
+
+ return -ENODEV;
+}
+
+#endif /* LINUX_VERSION_CODE < 0x20300 */
+
+#ifdef HAS_FIRMWARE
+#include "starfire_firmware.h"
+#endif /* HAS_FIRMWARE */
+
+MODULE_AUTHOR("Donald Becker <[EMAIL PROTECTED]>");
+MODULE_DESCRIPTION("Adaptec Starfire Ethernet driver");
+MODULE_PARM(max_interrupt_work, "i");
+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");
+
+/*
+ Theory of Operation
+
+I. Board Compatibility
+
+This driver is for the Adaptec 6915 "Starfire" 64 bit PCI Ethernet adapter.
+
+II. Board-specific settings
+
+III. Driver operation
+
+IIIa. Ring buffers
+
+The Starfire hardware uses multiple fixed-size descriptor queues/rings. The
+ring sizes are set fixed by the hardware, but may optionally be wrapped
+earlier by the END bit in the descriptor.
+This driver uses that hardware queue size for the Rx ring, where a large
+number of entries has no ill effect beyond increases the potential backlog.
+The Tx ring is wrapped with the END bit, since a large hardware Tx queue
+disables the queue layer priority ordering and we have no mechanism to
+utilize the hardware two-level priority queue. When modifying the
+RX/TX_RING_SIZE pay close attention to page sizes and the ring-empty warning
+levels.
+
+IIIb/c. Transmit/Receive Structure
+
+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 0/1 transmit descriptors (depending
+on the presence of the zerocopy patches), 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
+allocates full frame size skbuffs for the Rx ring buffers, so all frames
+should fit in a single descriptor. The driver does not use the completion
+queue consumer index, but instead checks for non-zero status entries.
+
+When an incoming frame is less than RX_COPYBREAK bytes long, a fresh skbuff
+is allocated and the frame is copied to the new skbuff. When the incoming
+frame is larger, the skbuff is passed directly up the protocol stack.
+Buffers consumed this way are replaced by newly allocated skbuffs in a
+later 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
+isn't longword aligned, which may cause problems on some machine
+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
+
+The driver runs as two independent, single-threaded flows of control. One
+is the send-packet routine, which enforces single-threaded use by the
+dev->tbusy flag. The other thread is the interrupt handler, which is single
+threaded by the hardware and interrupt handling software.
+
+The send packet thread has partial control over the Tx ring and 'dev->tbusy'
+flag. It sets the tbusy flag whenever it's queuing a Tx packet. If the next
+queue slot is empty, it clears the tbusy flag when finished otherwise it sets
+the 'lp->tx_full' flag.
+
+The interrupt handler has exclusive control over the Rx ring and records stats
+from the Tx ring. After reaping the stats, it marks the Tx queue entry as
+empty by incrementing the dirty_tx mark. Iff the 'lp->tx_full' flag is set, it
+clears both the tx_full and tbusy flags.
+
+IV. Notes
+
+IVb. References
+
+The Adaptec Starfire manuals, available only from Adaptec.
+http://www.scyld.com/expert/100mbps.html
+http://www.scyld.com/expert/NWay.html
+
+IVc. Errata
+
+*/
+
+
+
+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. */
+#endif
+
+#define HAS_IP_COPYSUM 1
+
+enum chipset {
+ CH_6915 = 0,
+};
+
+static struct pci_device_id starfire_pci_tbl[] __devinitdata = {
+ { 0x9004, 0x6915, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_6915 },
+ { 0, }
+};
+MODULE_DEVICE_TABLE(pci, starfire_pci_tbl);
+
+/* 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 },
+};
+
+
+/* Offsets to the device registers.
+ Unlike software-only systems, device drivers interact with complex hardware.
+ It's not useful to define symbolic names for every register bit in the
+ device. The name can only partially document the semantics and make
+ the driver longer and more difficult to read.
+ In general, only the important configuration values or bits changed
+ multiple times should be defined symbolically.
+*/
+enum register_offsets {
+ PCIDeviceConfig=0x50040, GenCtrl=0x50070, IntrTimerCtrl=0x50074,
+ IntrClear=0x50080, IntrStatus=0x50084, IntrEnable=0x50088,
+ MIICtrl=0x52000, StationAddr=0x50120, EEPROMCtrl=0x51000,
+ 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, RxDMACtrl=0x500D0,
+ RxDescQCtrl=0x500D4, RxDescQHiAddr=0x500DC, RxDescQAddr=0x500E0,
+ RxDescQIdx=0x500E8, RxDMAStatus=0x500F0, RxFilterMode=0x500F4,
+ TxMode=0x55000, TxGfpMem=0x58000, RxGfpMem=0x5a000,
+};
+
+/* Bits in the interrupt status/mask registers. */
+enum intr_status_bits {
+ 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,
+};
+
+/* Bits in the RxFilterMode register. */
+enum rx_mode_bits {
+ AcceptBroadcast=0x04, AcceptAllMulticast=0x02, AcceptAll=0x01,
+ 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. */
+};
+enum rx_desc_bits {
+ RxDescValid=1, RxDescEndRing=2,
+};
+
+/* 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. */
+#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 */
+ u32 timestamp;
+#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[6];
+};
+#else /* not ZEROCOPY */
+/* Type 1 Tx descriptor. */
+struct starfire_tx_desc {
+ u32 status; /* Upper bits are status,
+lower 16 length. */
+ u32 first_addr;
+};
+#endif /* not ZEROCOPY */
+enum tx_desc_bits {
+ TxDescID=0xB0000000,
+ TxCRCEn=0x01000000, TxDescIntr=0x08000000,
+ TxRingWrap=0x04000000, TxCalTCP=0x02000000,
+};
+struct tx_done_report {
+ u32 status; /* timestamp, index. */
+#if 0
+ u32 intrstatus; /* interrupt status */
+#endif
+};
+
+#define PRIV_ALIGN 15 /* Required alignment mask */
+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[6];
+#endif /* ZEROCOPY */
+};
+
+struct netdev_private {
+ /* Descriptor rings first for alignment. */
+ struct starfire_rx_desc *rx_ring;
+ struct starfire_tx_desc *tx_ring;
+ dma_addr_t rx_ring_dma;
+ dma_addr_t tx_ring_dma;
+ /* The addresses of rx/tx-in-place skbuffs. */
+ struct rx_ring_info rx_info[RX_RING_SIZE];
+ struct tx_ring_info tx_info[TX_RING_SIZE];
+ /* Pointers to completion queues (full pages). I should cache line pad..*/
+ u8 pad0[100];
+ 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;
+ 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_tx, dirty_tx;
+ 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. */
+ u32 tx_mode;
+ u8 tx_threshold;
+ /* MII transceiver section. */
+ int mii_cnt; /* MII device
+addresses. */
+ u16 advertising; /* NWay media
+advertisement */
+ unsigned char phys[2]; /* 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, 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);
+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 __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;
+ static int printed_version = 0;
+ long ioaddr;
+ int drv_flags, io_size;
+
+ card_idx++;
+ option = card_idx < MAX_UNITS ? options[card_idx] : 0;
+
+ if (!printed_version++)
+ printk(KERN_INFO "%s" KERN_INFO "%s" KERN_INFO "%s",
+ version1, version2, version3);
+
+ 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);
+ return -ENODEV;
+ }
+
+ dev = init_etherdev(NULL, sizeof(*np));
+ if (!dev) {
+ printk (KERN_ERR "starfire %d: cannot alloc etherdev, aborting\n",
+card_idx);
+ return -ENOMEM;
+ }
+
+ irq = pdev->irq;
+
+ if (request_mem_region (ioaddr, io_size, dev->name) == NULL) {
+ printk (KERN_ERR "starfire %d: resource 0x%x @ 0x%lx busy, aborting\n",
+ card_idx, io_size, ioaddr);
+ 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",
+ card_idx, io_size, ioaddr);
+ goto err_out_free_res;
+ }
+
+ pci_set_master (pdev);
+
+ printk(KERN_INFO "%s: %s at 0x%lx, ",
+ dev->name, netdrv_tbl[chip_idx].name, ioaddr);
+
+#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);
+ for (i = 0; i < 5; i++)
+ printk("%2.2x:", dev->dev_addr[i]);
+ printk("%2.2x, IRQ %d.\n", dev->dev_addr[i], irq);
+
+#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");
+#endif
+
+ /* Reset the chip to erase previous misconfiguration. */
+ writel(1, ioaddr + PCIDeviceConfig);
+
+ dev->base_addr = ioaddr;
+ dev->irq = irq;
+
+ np = dev->priv;
+ pci_set_drvdata(pdev, dev);
+
+ np->pci_dev = pdev;
+ drv_flags = netdrv_tbl[chip_idx].drv_flags;
+
+ 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)
+ np->full_duplex = 1;
+
+ if (np->full_duplex)
+ np->medialock = 1;
+
+ /* The chip-specific entries in the device structure. */
+ dev->open = &netdev_open;
+ dev->hard_start_xmit = &start_tx;
+ dev->stop = &netdev_close;
+ dev->get_stats = &get_stats;
+ dev->set_multicast_list = &set_rx_mode;
+ dev->do_ioctl = &mii_ioctl;
+
+ if (mtu)
+ dev->mtu = mtu;
+
+ if (drv_flags & CanHaveMII) {
+ int phy, phy_idx = 0;
+ for (phy = 0; phy < 32 && phy_idx < 4; phy++) {
+ int mii_status = mdio_read(dev, phy, 1);
+ if (mii_status != 0xffff && mii_status != 0x0000) {
+ np->phys[phy_idx++] = phy;
+ np->advertising = mdio_read(dev, phy, 4);
+ 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);
+ }
+ }
+ np->mii_cnt = phy_idx;
+ }
+
+ return 0;
+
+err_out_free_res:
+ release_mem_region (ioaddr, io_size);
+err_out_free_netdev:
+ unregister_netdev (dev);
+ kfree (dev);
+ return -ENODEV;
+}
+
+
+/* Read the MII Management Data I/O (MDIO) interfaces. */
+
+static int mdio_read(struct net_device *dev, int phy_id, int location)
+{
+ long mdio_addr = dev->base_addr + MIICtrl + (phy_id<<7) + (location<<2);
+ int result, boguscnt=1000;
+ /* ??? Should we add a busy-wait here? */
+ do
+ result = readl(mdio_addr);
+ while ((result & 0xC0000000) != 0x80000000 && --boguscnt >= 0);
+ return result & 0xffff;
+}
+
+static void mdio_write(struct net_device *dev, int phy_id, int location, int value)
+{
+ long mdio_addr = dev->base_addr + MIICtrl + (phy_id<<7) + (location<<2);
+ writel(value, mdio_addr);
+ /* The busy-wait will occur before a read. */
+ return;
+}
+
+
+static int netdev_open(struct net_device *dev)
+{
+ struct netdev_private *np = dev->priv;
+ long ioaddr = dev->base_addr;
+ int i, retval;
+
+ /* Do we ever need to reset the chip??? */
+
+ MOD_INC_USE_COUNT;
+
+ retval = request_irq(dev->irq, &intr_handler, SA_SHIRQ, dev->name, dev);
+ if (retval) {
+ 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);
+ /* 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, 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)
+ pci_free_consistent(np->pci_dev, PAGE_SIZE,
+ np->tx_done_q,
+np->tx_done_q_dma);
+ if (np->rx_done_q)
+ 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);
+ if (np->rx_ring)
+ pci_free_consistent(np->pci_dev, PAGE_SIZE,
+ np->rx_ring,
+np->rx_ring_dma);
+ MOD_DEC_USE_COUNT;
+ return -ENOMEM;
+ }
+
+ init_ring(dev);
+ /* Set the size of the Rx buffers. */
+ 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((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 */
+ writel(np->rx_ring_dma >> 32, ioaddr + RxDescQHiAddr);
+ writel(np->tx_ring_dma >> 32, ioaddr + TxRingHiAddr);
+#else
+ writel(0, ioaddr + RxDescQHiAddr);
+ writel(0, ioaddr + TxRingHiAddr);
+ writel(0, ioaddr + CompletionHiAddr);
+#endif
+ writel(np->rx_ring_dma, ioaddr + RxDescQAddr);
+ writel(np->tx_ring_dma, ioaddr + TxRingPtr);
+
+ writel(np->tx_done_q_dma, ioaddr + TxCompletionAddr);
+#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);
+
+ /* 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;
+ 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;
+ }
+
+ /* Initialize other registers. */
+ /* Configure the PCI bus bursts and FIFO thresholds. */
+ np->tx_mode = 0; /* Initialized when TxMode set. */
+ 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;
+
+ netif_start_queue(dev);
+
+ if (debug > 1)
+ 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);
+
+ /* Set the interrupt mask and enable PCI interrupts. */
+ writel(IntrRxDone | IntrRxEmpty | IntrDMAErr |
+ IntrTxDone | IntrStatsMax | IntrLinkChange |
+ IntrNormalSummary | IntrAbnormalSummary |
+ IntrRxGFPDead | IntrNoTxCsum | IntrTxBadID,
+ ioaddr + IntrEnable);
+ writel(0x00800000 | readl(ioaddr + PCIDeviceConfig),
+ ioaddr + PCIDeviceConfig);
+
+#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);
+
+ return 0;
+}
+
+static void check_duplex(struct net_device *dev, int startup)
+{
+ struct netdev_private *np = dev->priv;
+ long ioaddr = dev->base_addr;
+ int new_tx_mode ;
+
+ 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);
+ }
+}
+
+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. */
+
+ 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);
+ }
+ }
+#endif
+
+ np->timer.expires = jiffies + next_tick;
+ add_timer(&np->timer);
+}
+
+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));
+
+#ifndef __alpha__
+ {
+ int i;
+ printk(KERN_DEBUG " Rx ring %p: ", np->rx_ring);
+ for (i = 0; i < RX_RING_SIZE; i++)
+ printk(" %8.8x", (unsigned
+int)le32_to_cpu(np->rx_ring[i].rxaddr));
+ printk("\n"KERN_DEBUG" Tx ring %p: ", np->tx_ring);
+ for (i = 0; i < TX_RING_SIZE; i++)
+ printk(" %4.4x", le32_to_cpu(np->tx_ring[i].status));
+ printk("\n");
+ }
+#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++;
+ 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 = dev->priv;
+ int i;
+
+ np->tx_full = 0;
+ np->cur_rx = np->cur_tx = 0;
+ np->dirty_rx = np->rx_done = np->dirty_tx = np->tx_done = 0;
+
+ np->rx_buf_sz = (dev->mtu <= 1500 ? PKT_BUF_SZ : dev->mtu + 32);
+
+ /* Fill in the Rx buffers. Handle allocation failure gracefully. */
+ for (i = 0; i < RX_RING_SIZE; i++) {
+ struct sk_buff *skb = dev_alloc_skb(np->rx_buf_sz);
+ np->rx_info[i].skb = skb;
+ if (skb == NULL)
+ break;
+ np->rx_info[i].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.
+*/
+ /* Grrr, we cannot offset to correctly align the IP header. */
+ np->rx_ring[i].rxaddr = cpu_to_le32(np->rx_info[i].mapping |
+RxDescValid);
+ }
+ writew(i - 1, dev->base_addr + RxDescQIdx);
+ np->dirty_rx = (unsigned int)(i - RX_RING_SIZE);
+
+ /* Clear the remainder of the Rx buffer ring. */
+ for ( ; i < RX_RING_SIZE; i++) {
+ np->rx_ring[i].rxaddr = 0;
+ np->rx_info[i].skb = NULL;
+ np->rx_info[i].mapping = 0;
+ }
+ /* Mark the last entry as wrapping the ring. */
+ np->rx_ring[i-1].rxaddr |= cpu_to_le32(RxDescEndRing);
+
+ /* Clear the completion rings. */
+ for (i = 0; i < DONE_Q_SIZE; i++) {
+ np->rx_done_q[i].status = 0;
+ np->tx_done_q[i].status = 0;
+ }
+
+ for (i = 0; i < TX_RING_SIZE; i++) {
+ np->tx_info[i].skb = NULL;
+ np->tx_info[i].first_mapping = 0;
+#ifdef ZEROCOPY
+ {
+ int j;
+ for (j = 0; j < 6; j++)
+ np->tx_info[i].frag_mapping[j] = 0;
+ }
+#endif /* ZEROCOPY */
+ np->tx_ring[i].status = 0;
+ }
+ return;
+}
+
+static int start_tx(struct sk_buff *skb, struct net_device *dev)
+{
+ struct netdev_private *np = dev->priv;
+ unsigned int entry;
+#ifdef ZEROCOPY
+ int i;
+#endif
+
+ if (netif_queue_stopped(dev)) {
+ /* If this happens network layer tells us we're broken. */
+ if (jiffies - dev->trans_start > TX_TIMEOUT)
+ tx_timeout(dev);
+ }
+
+ /* Caution: the write order is important here, set the field
+ with the "ownership" bits last. */
+
+ /* 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].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);
+
+ /* not ifdef'ed, but shouldn't happen without ZEROCOPY */
+ if (skb->ip_summed == CHECKSUM_HW)
+ np->tx_ring[entry].status |= cpu_to_le32(TxCalTCP);
+
+ if (debug > 5) {
+#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 (entry >= TX_RING_SIZE-1) /* Wrap ring */
+ entry = -1;
+ entry++;
+
+ /* Non-x86: explicitly flush descriptor cache lines here. */
+ /* Ensure everything is written back above before the transmit is
+ initiated. - Jes */
+ wmb();
+
+ /* Update the producer index. */
+ 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;
+
+ return 0;
+}
+
+/* The interrupt handler does all of the Rx thread work and cleans up
+ after the Tx thread. */
+static void intr_handler(int irq, void *dev_instance, struct pt_regs *rgs)
+{
+ struct net_device *dev = (struct net_device *)dev_instance;
+ struct netdev_private *np;
+ long ioaddr;
+ int boguscnt = max_interrupt_work;
+
+#ifndef final_version /* Can never occur. */
+ if (dev == NULL) {
+ printk (KERN_ERR "Netdev interrupt handler(): IRQ %d for unknown "
+ "device.\n", irq);
+ return;
+ }
+#endif
+
+ ioaddr = dev->base_addr;
+ 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);
+
+ if (intr_status == 0)
+ break;
+
+ if (intr_status & IntrRxDone)
+ netdev_rx(dev);
+
+ /* 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);
+#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));
+#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;
+#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;
+
+#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;
+ }
+#endif /* ZEROCOPY */
+
+ /* Scavenge the descriptor. */
+ dev_kfree_skb_irq(skb);
+
+ np->dirty_tx++;
+ }
+ 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);
+ }
+
+ /* 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);
+ break;
+ }
+ } while (1);
+
+ if (debug > 4)
+ printk(KERN_DEBUG "%s: exiting interrupt, status=%#4.4x.\n",
+ 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) {
+ printk(KERN_ERR "%s: Emergency stop, looping startup
+interrupt.\n",
+ dev->name);
+ free_irq(irq, dev);
+ }
+ }
+#endif
+}
+
+/* This routine is logically part of the interrupt handler, but separated
+ for clarity and better register allocation. */
+static int netdev_rx(struct net_device *dev)
+{
+ struct netdev_private *np = dev->priv;
+ int boguscnt = np->dirty_rx + RX_RING_SIZE - np->cur_rx;
+ u32 desc_status;
+
+ 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);
+ 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) {
+ if (debug > 4)
+ 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);
+ 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;
+
+#ifndef final_version
+ 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);
+#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);
+#else
+ memcpy(skb_put(skb, pkt_len),
+np->rx_info[entry].skb->tail,
+ pkt_len);
+#endif
+ } 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);
+#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++;
+ }
+ np->cur_rx++;
+ np->rx_done_q[np->rx_done].status = 0;
+ np->rx_done = (np->rx_done + 1) & (DONE_Q_SIZE-1);
+ }
+ writew(np->rx_done, dev->base_addr + CompletionQConsumerIdx);
+
+ /* Refill the Rx ring buffers. */
+ for (; np->cur_rx - np->dirty_rx > 0; np->dirty_rx++) {
+ struct sk_buff *skb;
+ int entry = np->dirty_rx % RX_RING_SIZE;
+ if (np->rx_info[entry].skb == NULL) {
+ skb = dev_alloc_skb(np->rx_buf_sz);
+ np->rx_info[entry].skb = skb;
+ if (skb == NULL)
+ 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. */
+ np->rx_ring[entry].rxaddr =
+ cpu_to_le32(np->rx_info[entry].mapping | RxDescValid);
+ }
+ if (entry == RX_RING_SIZE - 1)
+ np->rx_ring[entry].rxaddr |= cpu_to_le32(RxDescEndRing);
+ /* We could defer this until later... */
+ 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));
+
+ /* Restart Rx engine if stopped. */
+ return 0;
+}
+
+static void netdev_error(struct net_device *dev, int intr_status)
+{
+ struct netdev_private *np = dev->priv;
+
+ if (intr_status & IntrLinkChange) {
+ 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 & IntrStatsMax) {
+ get_stats(dev);
+ }
+ /* Came close to underrunning the Tx FIFO, increase threshold. */
+ if (intr_status & IntrTxDataLow)
+ writel(++np->tx_threshold, dev->base_addr + TxThreshold);
+ if ((intr_status &
+ ~(IntrAbnormalSummary|IntrLinkChange|IntrStatsMax|IntrTxDataLow|1))
+&& debug)
+ printk(KERN_ERR "%s: Something Wicked happened! %4.4x.\n",
+ dev->name, intr_status);
+ /* Hmmmmm, it's not clear how to recover from DMA faults. */
+ if (intr_status & IntrDMAErr)
+ np->stats.tx_fifo_errors++;
+}
+
+static struct net_device_stats *get_stats(struct net_device *dev)
+{
+ long ioaddr = dev->base_addr;
+ struct netdev_private *np = dev->priv;
+
+ /* This adapter architecture needs no SMP locks. */
+ np->stats.tx_bytes = readl(ioaddr + 0x57010);
+ np->stats.rx_bytes = readl(ioaddr + 0x57044);
+ np->stats.tx_packets = readl(ioaddr + 0x57000);
+ 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);
+
+ /* The chip only need report frame silently dropped. */
+ np->stats.rx_dropped += readw(ioaddr + RxDMAStatus);
+ writew(0, ioaddr + RxDMAStatus);
+ 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);
+
+ return &np->stats;
+}
+
+/* The little-endian AUTODIN II ethernet CRC calculations.
+ A big-endian version is also available.
+ This is slow but compact code. Do not use this routine for bulk data,
+ use a table-based routine instead.
+ This is common code and should be moved to net/core/crc.c.
+ Chips may use the upper or lower CRC bits, and may reverse and/or invert
+ them. Select the endian-ness that results in minimal calculations.
+*/
+static unsigned const ethernet_polynomial_le = 0xedb88320U;
+static inline unsigned ether_crc_le(int length, unsigned char *data)
+{
+ unsigned int crc = 0xffffffff; /* Initial value. */
+ while(--length >= 0) {
+ unsigned char current_octet = *data++;
+ int bit;
+ for (bit = 8; --bit >= 0; current_octet >>= 1) {
+ if ((crc ^ current_octet) & 1) {
+ crc >>= 1;
+ crc ^= ethernet_polynomial_le;
+ } else
+ crc >>= 1;
+ }
+ }
+ return crc;
+}
+
+static void set_rx_mode(struct net_device *dev)
+{
+ long ioaddr = dev->base_addr;
+ u32 rx_mode;
+ 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);
+ rx_mode = AcceptBroadcast|AcceptAllMulticast|AcceptAll|AcceptMyPhys;
+ } else if ((dev->mc_count > multicast_filter_limit)
+ || (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) {
+ 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;
+ writew(cpu_to_be16(eaddrs[0]), filter_addr); filter_addr += 8;
+ }
+ while (i++ < 16) {
+ writew(0xffff, filter_addr); filter_addr += 4;
+ writew(0xffff, filter_addr); filter_addr += 4;
+ writew(0xffff, filter_addr); filter_addr += 8;
+ }
+ rx_mode = AcceptBroadcast | AcceptMyPhys;
+ } else {
+ /* Must use a multicast hash table. */
+ long filter_addr;
+ u16 mc_filter[32] __attribute__ ((aligned(sizeof(long)))); /*
+Multicast hash filter */
+
+ 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);
+ }
+ /* Clear the perfect filter list. */
+ filter_addr = ioaddr + 0x56000 + 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++)
+ 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)
+{
+ struct netdev_private *np = dev->priv;
+ u16 *data = (u16 *)&rq->ifr_data;
+
+ switch(cmd) {
+ case SIOCDEVPRIVATE: /* Get the address of the PHY in use. */
+ data[0] = 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);
+ return 0;
+ case SIOCDEVPRIVATE+2: /* Write the specified MII register */
+ if (!capable(CAP_NET_ADMIN))
+ return -EPERM;
+ if (data[0] == np->phys[0]) {
+ u16 value = data[2];
+ switch (data[1]) {
+ case 0:
+ if (value & 0x9000) /* Autonegotiation. */
+ np->medialock = 0;
+ else {
+ np->full_duplex = (value & 0x0100) ? 1 : 0;
+ np->medialock = 1;
+ }
+ break;
+ case 4: np->advertising = value; break;
+ }
+ check_duplex(dev, 0);
+ }
+ mdio_write(dev, data[0] & 0x1f, data[1] & 0x1f, data[2]);
+ return 0;
+ default:
+ return -EOPNOTSUPP;
+ }
+}
+
+static int netdev_close(struct net_device *dev)
+{
+ long ioaddr = dev->base_addr;
+ struct netdev_private *np = dev->priv;
+ int i;
+
+ netif_device_detach(dev);
+
+ del_timer_sync(&np->timer);
+
+ if (debug > 1) {
+ printk(KERN_DEBUG "%s: Shutting down ethercard, Intr status %4.4x.\n",
+ dev->name, (int)readl(ioaddr + IntrStatus));
+ printk(KERN_DEBUG "%s: Queue pointers were Tx %d / %d, Rx %d / %d.\n",
+ dev->name, np->cur_tx, np->dirty_tx, np->cur_rx,
+np->dirty_rx);
+ }
+
+ /* Disable interrupts by clearing the interrupt mask. */
+ writel(0, ioaddr + IntrEnable);
+
+ /* Stop the chip's Tx and Rx processes. */
+
+#ifdef __i386__
+ if (debug > 2) {
+ printk("\n"KERN_DEBUG" Tx ring at %8.8x:\n",
+ 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].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);
+ 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));
+ }
+ }
+#endif /* __i386__ debugging only */
+
+ free_irq(dev->irq, dev);
+
+ /* Free all the skbuffs in the Rx queue. */
+ for (i = 0; i < RX_RING_SIZE; i++) {
+ np->rx_ring[i].rxaddr = cpu_to_le32(0xBADF00D0); /* An invalid
+address. */
+ if (np->rx_info[i].skb != NULL) {
+ pci_unmap_single(np->pci_dev, np->rx_info[i].mapping,
+np->rx_buf_sz, PCI_DMA_FROMDEVICE);
+ dev_kfree_skb(np->rx_info[i].skb);
+ }
+ np->rx_info[i].skb = NULL;
+ np->rx_info[i].mapping = 0;
+ }
+ for (i = 0; i < TX_RING_SIZE; i++) {
+ struct sk_buff *skb = np->tx_info[i].skb;
+#ifdef ZEROCOPY
+ int j;
+#endif /* ZEROCOPY */
+ if (skb != NULL) {
+ 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;
+#ifdef ZEROCOPY
+ for (j = 0; j < 6; 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 */
+ }
+ }
+
+ MOD_DEC_USE_COUNT;
+
+ return 0;
+}
+
+
+static void __devexit starfire_remove_one (struct pci_dev *pdev)
+{
+ struct net_device *dev = pci_get_drvdata(pdev);
+ struct netdev_private *np;
+
+ if (!dev)
+ BUG();
+
+ np = dev->priv;
+
+ unregister_netdev(dev);
+ iounmap((char *)dev->base_addr);
+
+ release_mem_region(pci_resource_start (pdev, 0),
+ pci_resource_len (pdev, 0));
+
+ if (np->tx_done_q)
+ pci_free_consistent(np->pci_dev, PAGE_SIZE,
+ 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);
+ if (np->tx_ring)
+ pci_free_consistent(np->pci_dev, PAGE_SIZE,
+ 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);
+
+ kfree(dev);
+}
+
+
+static struct pci_driver starfire_driver = {
+ name: "starfire",
+ probe: starfire_init_one,
+ remove: starfire_remove_one,
+ id_table: starfire_pci_tbl,
+};
+
+
+static int __init starfire_init (void)
+{
+ return pci_module_init (&starfire_driver);
+}
+
+
+static void __exit starfire_cleanup (void)
+{
+ pci_unregister_driver (&starfire_driver);
+}
+
+
+module_init(starfire_init);
+module_exit(starfire_cleanup);
+
+
+/*
+ * 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
+ * End:
+ */
diff -urNX diff_kernel_excludes
/usr/src/local/linux-2.2.18-vanilla/drivers/net/starfire_firmware.pl
linux-2.2.18/drivers/net/starfire_firmware.pl
--- /usr/src/local/linux-2.2.18-vanilla/drivers/net/starfire_firmware.pl Wed
Dec 31 16:00:00 1969
+++ linux-2.2.18/drivers/net/starfire_firmware.pl Wed Feb 7 17:59:17 2001
@@ -0,0 +1,31 @@
+#!/usr/bin/perl
+
+# This script can be used to generate a new starfire_firmware.h
+# from GFP_RX.DAT and GFP_TX.DAT, files included with the DDK
+# and also with the Novell drivers.
+
+open FW, "GFP_RX.DAT" || die;
+open FWH, ">starfire_firmware.h" || die;
+
+printf(FWH "static u32 firmware_rx[] = {\n");
+$counter = 0;
+while ($foo = <FW>) {
+ chomp;
+ printf(FWH " 0x%s, 0x0000%s,\n", substr($foo, 4, 8), substr($foo, 0, 4));
+ $counter++;
+}
+
+close FW;
+open FW, "GFP_TX.DAT" || die;
+
+printf(FWH "};\t/* %d Rx instructions */\n#define FIRMWARE_RX_SIZE %d\n\nstatic u32
+firmware_tx[] = {\n", $counter, $counter);
+$counter = 0;
+while ($foo = <FW>) {
+ chomp;
+ printf(FWH " 0x%s, 0x0000%s,\n", substr($foo, 4, 8), substr($foo, 0, 4));
+ $counter++;
+}
+
+close FW;
+printf(FWH "};\t/* %d Tx instructions */\n#define FIRMWARE_TX_SIZE %d\n", $counter,
+$counter);
+close(FWH);
-
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