/*
Written 1998-2000 by Donald Becker.
- Current maintainer is Ion Badulescu <ionut@cs.columbia.edu>. Please
+ Current maintainer is Ion Badulescu <ionut ta badula tod org>. Please
send all bug reports to me, and not to Donald Becker, as this code
has been heavily modified from Donald's original version.
- put the chip to a D3 slumber on driver unload
- added config option to enable/disable NAPI
-TODO: bugfixes (no bugs known as of right now)
+ LK1.4.2 (Ion Badulescu)
+ - finally added firmware (GPL'ed by Adaptec)
+ - removed compatibility code for 2.2.x
+
+ LK1.4.2.1 (Ion Badulescu)
+ - fixed 32/64 bit issues on i386 + CONFIG_HIGHMEM
+ - added 32-bit padding to outgoing skb's, removed previous workaround
+
+TODO: - fix forced speed/duplexing code (broken a long time ago, when
+ somebody converted the driver to use the generic MII code)
+ - fix VLAN support
*/
#define DRV_NAME "starfire"
-#define DRV_VERSION "1.03+LK1.4.1"
-#define DRV_RELDATE "February 10, 2002"
+#define DRV_VERSION "1.03+LK1.4.2.1"
+#define DRV_RELDATE "October 3, 2005"
#include <linux/config.h>
-#include <linux/version.h>
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/pci.h>
#include <linux/etherdevice.h>
#include <linux/init.h>
#include <linux/delay.h>
+#include <linux/crc32.h>
+#include <linux/ethtool.h>
+#include <linux/mii.h>
+#include <linux/if_vlan.h>
#include <asm/processor.h> /* Processor type for cache alignment. */
#include <asm/uaccess.h>
#include <asm/io.h>
-/*
- * Adaptec's license for their 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, should a legal-to-distribute firmware become available,
- * the driver developer would need only to obtain the firmware in the
- * form of a C header file.
- * 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.
- *
- * WANTED: legal firmware to include with this GPL'd driver.
- */
-#undef HAS_FIRMWARE
+#include "starfire_firmware.h"
/*
* 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 using the broken firmware, data must be padded to the next 32-bit boundary.
*/
-#if defined(HAS_FIRMWARE) && defined(MAX_SKB_FRAGS)
-#define ZEROCOPY
+#ifdef HAS_BROKEN_FIRMWARE
+#define PADDING_MASK 3
#endif
-#ifdef HAS_FIRMWARE
-#include "starfire_firmware.h"
-#endif /* HAS_FIRMWARE */
+/*
+ * Define this if using the driver with the zero-copy patch
+ */
+#define ZEROCOPY
#if defined(CONFIG_VLAN_8021Q) || defined(CONFIG_VLAN_8021Q_MODULE)
#define VLAN_SUPPORT
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 = 512;
+static const int multicast_filter_limit = 512;
/* Whether to do TCP/UDP checksums in hardware */
-#ifdef HAS_FIRMWARE
static int enable_hw_cksum = 1;
-#else
-static int enable_hw_cksum = 0;
-#endif
#define PKT_BUF_SZ 1536 /* Size of each temporary Rx buffer.*/
/*
* This SUCKS.
* We need a much better method to determine if dma_addr_t is 64-bit.
*/
-#if (defined(__i386__) && defined(CONFIG_HIGHMEM) && (LINUX_VERSION_CODE > 0x20500 || defined(CONFIG_HIGHMEM64G))) || defined(__x86_64__) || defined (__ia64__) || defined(__mips64__) || (defined(__mips__) && defined(CONFIG_HIGHMEM) && defined(CONFIG_64BIT_PHYS_ADDR))
+#if (defined(__i386__) && defined(CONFIG_HIGHMEM64G)) || defined(__x86_64__) || defined (__ia64__) || defined(__mips64__) || (defined(__mips__) && defined(CONFIG_HIGHMEM) && defined(CONFIG_64BIT_PHYS_ADDR))
/* 64-bit dma_addr_t */
#define ADDR_64BITS /* This chip uses 64 bit addresses. */
+#define netdrv_addr_t u64
#define cpu_to_dma(x) cpu_to_le64(x)
#define dma_to_cpu(x) le64_to_cpu(x)
#define RX_DESC_Q_ADDR_SIZE RxDescQAddr64bit
#define TX_COMPL_Q_ADDR_SIZE TxComplQAddr64bit
#define RX_DESC_ADDR_SIZE RxDescAddr64bit
#else /* 32-bit dma_addr_t */
+#define netdrv_addr_t u32
#define cpu_to_dma(x) cpu_to_le32(x)
#define dma_to_cpu(x) le32_to_cpu(x)
#define RX_DESC_Q_ADDR_SIZE RxDescQAddr32bit
#define RX_DESC_ADDR_SIZE RxDescAddr32bit
#endif
-#ifdef MAX_SKB_FRAGS
#define skb_first_frag_len(skb) skb_headlen(skb)
#define skb_num_frags(skb) (skb_shinfo(skb)->nr_frags + 1)
-#else /* not MAX_SKB_FRAGS */
-#define skb_first_frag_len(skb) (skb->len)
-#define skb_num_frags(skb) 1
-#endif /* not MAX_SKB_FRAGS */
-
-/* 2.2.x compatibility code */
-#if LINUX_VERSION_CODE < 0x20300
-
-#include "starfire-kcomp22.h"
-
-#else /* LINUX_VERSION_CODE > 0x20300 */
-
-#include <linux/crc32.h>
-#include <linux/ethtool.h>
-#include <linux/mii.h>
-
-#include <linux/if_vlan.h>
-
-#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_name(pci_dev)
-
-#endif /* LINUX_VERSION_CODE > 0x20300 */
#ifdef HAVE_NETDEV_POLL
#define init_poll(dev) \
+do { \
dev->poll = &netdev_poll; \
- dev->weight = max_interrupt_work;
+ dev->weight = max_interrupt_work; \
+} while (0)
#define netdev_rx(dev, ioaddr) \
do { \
u32 intr_enable; \
/* Paranoia check */ \
intr_enable = readl(ioaddr + IntrEnable); \
if (intr_enable & (IntrRxDone | IntrRxEmpty)) { \
- printk("%s: interrupt while in polling mode!\n", dev->name); \
+ printk(KERN_INFO "%s: interrupt while in polling mode!\n", dev->name); \
intr_enable &= ~(IntrRxDone | IntrRxEmpty); \
writel(intr_enable, ioaddr + IntrEnable); \
} \
/* These identify the driver base version and may not be removed. */
-static char version[] __devinitdata =
+static const char version[] __devinitdata =
KERN_INFO "starfire.c:v1.03 7/26/2000 Written by Donald Becker <becker@scyld.com>\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");
MODULE_LICENSE("GPL");
+MODULE_VERSION(DRV_VERSION);
module_param(max_interrupt_work, int, 0);
module_param(mtu, int, 0);
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 0/1/2/3 receive descriptors. The driver
+For receive this driver uses type 2/3 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.
*/
-\f
+
enum chip_capability_flags {CanHaveMII=1, };
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 {
+static const struct chip_info {
const char *name;
int drv_flags;
} netdrv_tbl[] __devinitdata = {
u32 timestamp;
};
/* XXX: this is ugly and I'm not sure it's worth the trouble -Ion */
-#ifdef HAS_FIRMWARE
#ifdef VLAN_SUPPORT
typedef struct full_rx_done_desc rx_done_desc;
#define RxComplType RxComplType3
typedef struct csum_rx_done_desc rx_done_desc;
#define RxComplType RxComplType2
#endif /* not VLAN_SUPPORT */
-#else /* not HAS_FIRMWARE */
-#ifdef VLAN_SUPPORT
-typedef struct basic_rx_done_desc rx_done_desc;
-#define RxComplType RxComplType1
-#else /* not VLAN_SUPPORT */
-typedef struct short_rx_done_desc rx_done_desc;
-#define RxComplType RxComplType0
-#endif /* not VLAN_SUPPORT */
-#endif /* not HAS_FIRMWARE */
enum rx_done_bits {
RxOK=0x20000000, RxFIFOErr=0x10000000, RxBufQ2=0x08000000,
/* enable MWI -- it vastly improves Rx performance on sparc64 */
pci_set_mwi(pdev);
-#ifdef MAX_SKB_FRAGS
- dev->features |= NETIF_F_SG;
-#endif /* MAX_SKB_FRAGS */
#ifdef ZEROCOPY
/* Starfire can do TCP/UDP checksumming */
if (enable_hw_cksum)
- dev->features |= NETIF_F_IP_CSUM;
+ dev->features |= NETIF_F_IP_CSUM | NETIF_F_SG;
#endif /* ZEROCOPY */
#ifdef VLAN_SUPPORT
dev->features |= NETIF_F_HW_VLAN_RX | NETIF_F_HW_VLAN_FILTER;
/* The chip-specific entries in the device structure. */
dev->open = &netdev_open;
dev->hard_start_xmit = &start_tx;
- init_tx_timer(dev, tx_timeout, TX_TIMEOUT);
+ dev->tx_timeout = tx_timeout;
+ dev->watchdog_timeo = TX_TIMEOUT;
init_poll(dev);
dev->stop = &netdev_close;
dev->get_stats = &get_stats;
if ((mdio_read(dev, phy, MII_BMCR) & BMCR_RESET) == 0)
break;
if (boguscnt == 0) {
- printk("%s: PHY reset never completed!\n", dev->name);
+ printk("%s: PHY#%d reset never completed!\n", dev->name, phy);
continue;
}
mii_status = mdio_read(dev, phy, MII_BMSR);
size_t tx_done_q_size, rx_done_q_size, tx_ring_size, rx_ring_size;
/* Do we ever need to reset the chip??? */
+
retval = request_irq(dev->irq, &intr_handler, SA_SHIRQ, dev->name, dev);
if (retval)
return retval;
rx_ring_size = sizeof(struct starfire_rx_desc) * RX_RING_SIZE;
np->queue_mem_size = tx_done_q_size + rx_done_q_size + tx_ring_size + rx_ring_size;
np->queue_mem = pci_alloc_consistent(np->pci_dev, np->queue_mem_size, &np->queue_mem_dma);
- if (np->queue_mem == 0)
+ if (np->queue_mem == NULL) {
+ free_irq(dev->irq, dev);
return -ENOMEM;
+ }
np->tx_done_q = np->queue_mem;
np->tx_done_q_dma = np->queue_mem_dma;
writel(np->intr_timer_ctrl, ioaddr + IntrTimerCtrl);
- netif_start_if(dev);
netif_start_queue(dev);
if (debug > 1)
writel(ETH_P_8021Q, ioaddr + VlanType);
#endif /* VLAN_SUPPORT */
-#ifdef HAS_FIRMWARE
/* Load Rx/Tx firmware into the frame processors */
for (i = 0; i < FIRMWARE_RX_SIZE * 2; i++)
writel(firmware_rx[i], ioaddr + RxGfpMem + i * 4);
for (i = 0; i < FIRMWARE_TX_SIZE * 2; i++)
writel(firmware_tx[i], ioaddr + TxGfpMem + i * 4);
-#endif /* HAS_FIRMWARE */
if (enable_hw_cksum)
/* Enable the Rx and Tx units, and the Rx/Tx frame processors. */
writel(TxEnable|TxGFPEnable|RxEnable|RxGFPEnable, ioaddr + GenCtrl);
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);
+ np->rx_info[i].mapping = pci_map_single(np->pci_dev, skb->data, 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_dma(np->rx_info[i].mapping | RxDescValid);
u32 status;
int i;
- kick_tx_timer(dev, tx_timeout, TX_TIMEOUT);
-
/*
* be cautious here, wrapping the queue has weird semantics
* and we may not have enough slots even when it seems we do.
}
#if defined(ZEROCOPY) && 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);
+ if (skb->ip_summed == CHECKSUM_HW) {
+ skb = skb_padto(skb, (skb->len + PADDING_MASK) & ~PADDING_MASK);
+ if (skb == NULL)
+ return NETDEV_TX_OK;
}
#endif /* ZEROCOPY && HAS_BROKEN_FIRMWARE */
np->tx_info[entry].mapping =
pci_map_single(np->pci_dev, skb->data, skb_first_frag_len(skb), PCI_DMA_TODEVICE);
} else {
-#ifdef MAX_SKB_FRAGS
skb_frag_t *this_frag = &skb_shinfo(skb)->frags[i - 1];
status |= this_frag->size;
np->tx_info[entry].mapping =
pci_map_single(np->pci_dev, page_address(this_frag->page) + this_frag->page_offset, this_frag->size, PCI_DMA_TODEVICE);
-#endif /* MAX_SKB_FRAGS */
}
np->tx_ring[entry].addr = cpu_to_dma(np->tx_info[entry].mapping);
np->tx_info[entry].mapping = 0;
np->dirty_tx += np->tx_info[entry].used_slots;
entry = (entry + np->tx_info[entry].used_slots) % TX_RING_SIZE;
-#ifdef MAX_SKB_FRAGS
{
int i;
for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
entry++;
}
}
-#endif /* MAX_SKB_FRAGS */
+
dev_kfree_skb_irq(skb);
}
np->tx_done_q[np->tx_done].status = 0;
if (debug > 4)
printk(KERN_DEBUG " netdev_rx() status of %d was %#8.8x.\n", np->rx_done, desc_status);
if (!(desc_status & RxOK)) {
- /* There was a error. */
+ /* There was an error. */
if (debug > 2)
printk(KERN_DEBUG " netdev_rx() Rx error was %#8.8x.\n", desc_status);
np->stats.rx_errors++;
pci_dma_sync_single_for_cpu(np->pci_dev,
np->rx_info[entry].mapping,
pkt_len, PCI_DMA_FROMDEVICE);
- eth_copy_and_sum(skb, np->rx_info[entry].skb->tail, pkt_len, 0);
+ eth_copy_and_sum(skb, np->rx_info[entry].skb->data, pkt_len, 0);
pci_dma_sync_single_for_device(np->pci_dev,
np->rx_info[entry].mapping,
pkt_len, PCI_DMA_FROMDEVICE);
#endif
skb->protocol = eth_type_trans(skb, dev);
-#if defined(HAS_FIRMWARE) || defined(VLAN_SUPPORT)
+#ifdef VLAN_SUPPORT
if (debug > 4)
printk(KERN_DEBUG " netdev_rx() status2 of %d was %#4.4x.\n", np->rx_done, le16_to_cpu(desc->status2));
#endif
-#ifdef HAS_FIRMWARE
if (le16_to_cpu(desc->status2) & 0x0100) {
skb->ip_summed = CHECKSUM_UNNECESSARY;
np->stats.rx_compressed++;
skb->csum = le16_to_cpu(desc->csum);
printk(KERN_DEBUG "%s: checksum_hw, status2 = %#x\n", dev->name, le16_to_cpu(desc->status2));
}
-#endif /* HAS_FIRMWARE */
#ifdef VLAN_SUPPORT
if (np->vlgrp && le16_to_cpu(desc->status2) & 0x0200) {
if (debug > 4)
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);
+ pci_map_single(np->pci_dev, skb->data, np->rx_buf_sz, PCI_DMA_FROMDEVICE);
skb->dev = dev; /* Mark as being used by this device. */
np->rx_ring[entry].rxaddr =
cpu_to_dma(np->rx_info[entry].mapping | RxDescValid);
}
-/* 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 void set_rx_mode(struct net_device *dev)
{
struct netdev_private *np = netdev_priv(dev);
memset(mc_filter, 0, sizeof(mc_filter));
for (i = 0, mclist = dev->mc_list; mclist && i < dev->mc_count;
i++, mclist = mclist->next) {
+ /* The chip uses the upper 9 CRC bits
+ as index into the hash table */
int bit_nr = ether_crc_le(ETH_ALEN, mclist->dmi_addr) >> 23;
__u32 *fptr = (__u32 *) &mc_filter[(bit_nr >> 4) & ~1];
struct netdev_private *np = netdev_priv(dev);
strcpy(info->driver, DRV_NAME);
strcpy(info->version, DRV_VERSION);
- strcpy(info->bus_info, PCI_SLOT_NAME(np->pci_dev));
+ strcpy(info->bus_info, pci_name(np->pci_dev));
}
static int get_settings(struct net_device *dev, struct ethtool_cmd *ecmd)
int i;
netif_stop_queue(dev);
- netif_stop_if(dev);
if (debug > 1) {
printk(KERN_DEBUG "%s: Shutting down ethercard, Intr status %#8.8x.\n",
return 0;
}
+#ifdef CONFIG_PM
+static int starfire_suspend(struct pci_dev *pdev, pm_message_t state)
+{
+ struct net_device *dev = pci_get_drvdata(pdev);
+
+ if (netif_running(dev)) {
+ netif_device_detach(dev);
+ netdev_close(dev);
+ }
+
+ pci_save_state(pdev);
+ pci_set_power_state(pdev, pci_choose_state(pdev,state));
+
+ return 0;
+}
+
+static int starfire_resume(struct pci_dev *pdev)
+{
+ struct net_device *dev = pci_get_drvdata(pdev);
+
+ pci_set_power_state(pdev, PCI_D0);
+ pci_restore_state(pdev);
+
+ if (netif_running(dev)) {
+ netdev_open(dev);
+ netif_device_attach(dev);
+ }
+
+ return 0;
+}
+#endif /* CONFIG_PM */
+
static void __devexit starfire_remove_one (struct pci_dev *pdev)
{
struct net_device *dev = pci_get_drvdata(pdev);
struct netdev_private *np = netdev_priv(dev);
- if (!dev)
- BUG();
+ BUG_ON(!dev);
unregister_netdev(dev);
.name = DRV_NAME,
.probe = starfire_init_one,
.remove = __devexit_p(starfire_remove_one),
+#ifdef CONFIG_PM
+ .suspend = starfire_suspend,
+ .resume = starfire_resume,
+#endif /* CONFIG_PM */
.id_table = starfire_pci_tbl,
};
/* when a module, this is printed whether or not devices are found in probe */
#ifdef MODULE
printk(version);
+#ifdef HAVE_NETDEV_POLL
+ printk(KERN_INFO DRV_NAME ": polling (NAPI) enabled\n");
+#else
+ printk(KERN_INFO DRV_NAME ": polling (NAPI) disabled\n");
#endif
-#ifndef ADDR_64BITS
+#endif
+
/* we can do this test only at run-time... sigh */
- if (sizeof(dma_addr_t) == sizeof(u64)) {
- printk("This driver has not been ported to this 64-bit architecture yet\n");
+ if (sizeof(dma_addr_t) != sizeof(netdrv_addr_t)) {
+ printk("This driver has dma_addr_t issues, please send email to maintainer\n");
return -ENODEV;
}
-#endif /* not ADDR_64BITS */
-#ifndef HAS_FIRMWARE
- /* unconditionally disable hw cksums if firmware is not present */
- enable_hw_cksum = 0;
-#endif /* not HAS_FIRMWARE */
+
return pci_module_init (&starfire_driver);
}
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