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path: root/drivers/net/sky2.c
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Diffstat (limited to 'drivers/net/sky2.c')
-rw-r--r--drivers/net/sky2.c170
1 files changed, 124 insertions, 46 deletions
diff --git a/drivers/net/sky2.c b/drivers/net/sky2.c
index e24b25c..3805b93 100644
--- a/drivers/net/sky2.c
+++ b/drivers/net/sky2.c
@@ -3732,27 +3732,63 @@ static int sky2_get_eeprom_len(struct net_device *dev)
return 1 << ( ((reg2 & PCI_VPD_ROM_SZ) >> 14) + 8);
}
-static u32 sky2_vpd_read(struct sky2_hw *hw, int cap, u16 offset)
+static int sky2_vpd_wait(const struct sky2_hw *hw, int cap, u16 busy)
{
- u32 val;
+ unsigned long start = jiffies;
- sky2_pci_write16(hw, cap + PCI_VPD_ADDR, offset);
+ while ( (sky2_pci_read16(hw, cap + PCI_VPD_ADDR) & PCI_VPD_ADDR_F) == busy) {
+ /* Can take up to 10.6 ms for write */
+ if (time_after(jiffies, start + HZ/4)) {
+ dev_err(&hw->pdev->dev, PFX "VPD cycle timed out");
+ return -ETIMEDOUT;
+ }
+ mdelay(1);
+ }
- do {
- offset = sky2_pci_read16(hw, cap + PCI_VPD_ADDR);
- } while (!(offset & PCI_VPD_ADDR_F));
+ return 0;
+}
+
+static int sky2_vpd_read(struct sky2_hw *hw, int cap, void *data,
+ u16 offset, size_t length)
+{
+ int rc = 0;
+
+ while (length > 0) {
+ u32 val;
+
+ sky2_pci_write16(hw, cap + PCI_VPD_ADDR, offset);
+ rc = sky2_vpd_wait(hw, cap, 0);
+ if (rc)
+ break;
- val = sky2_pci_read32(hw, cap + PCI_VPD_DATA);
- return val;
+ val = sky2_pci_read32(hw, cap + PCI_VPD_DATA);
+
+ memcpy(data, &val, min(sizeof(val), length));
+ offset += sizeof(u32);
+ data += sizeof(u32);
+ length -= sizeof(u32);
+ }
+
+ return rc;
}
-static void sky2_vpd_write(struct sky2_hw *hw, int cap, u16 offset, u32 val)
+static int sky2_vpd_write(struct sky2_hw *hw, int cap, const void *data,
+ u16 offset, unsigned int length)
{
- sky2_pci_write16(hw, cap + PCI_VPD_DATA, val);
- sky2_pci_write32(hw, cap + PCI_VPD_ADDR, offset | PCI_VPD_ADDR_F);
- do {
- offset = sky2_pci_read16(hw, cap + PCI_VPD_ADDR);
- } while (offset & PCI_VPD_ADDR_F);
+ unsigned int i;
+ int rc = 0;
+
+ for (i = 0; i < length; i += sizeof(u32)) {
+ u32 val = *(u32 *)(data + i);
+
+ sky2_pci_write32(hw, cap + PCI_VPD_DATA, val);
+ sky2_pci_write32(hw, cap + PCI_VPD_ADDR, offset | PCI_VPD_ADDR_F);
+
+ rc = sky2_vpd_wait(hw, cap, PCI_VPD_ADDR_F);
+ if (rc)
+ break;
+ }
+ return rc;
}
static int sky2_get_eeprom(struct net_device *dev, struct ethtool_eeprom *eeprom,
@@ -3760,24 +3796,13 @@ static int sky2_get_eeprom(struct net_device *dev, struct ethtool_eeprom *eeprom
{
struct sky2_port *sky2 = netdev_priv(dev);
int cap = pci_find_capability(sky2->hw->pdev, PCI_CAP_ID_VPD);
- int length = eeprom->len;
- u16 offset = eeprom->offset;
if (!cap)
return -EINVAL;
eeprom->magic = SKY2_EEPROM_MAGIC;
- while (length > 0) {
- u32 val = sky2_vpd_read(sky2->hw, cap, offset);
- int n = min_t(int, length, sizeof(val));
-
- memcpy(data, &val, n);
- length -= n;
- data += n;
- offset += n;
- }
- return 0;
+ return sky2_vpd_read(sky2->hw, cap, data, eeprom->offset, eeprom->len);
}
static int sky2_set_eeprom(struct net_device *dev, struct ethtool_eeprom *eeprom,
@@ -3785,8 +3810,6 @@ static int sky2_set_eeprom(struct net_device *dev, struct ethtool_eeprom *eeprom
{
struct sky2_port *sky2 = netdev_priv(dev);
int cap = pci_find_capability(sky2->hw->pdev, PCI_CAP_ID_VPD);
- int length = eeprom->len;
- u16 offset = eeprom->offset;
if (!cap)
return -EINVAL;
@@ -3794,21 +3817,11 @@ static int sky2_set_eeprom(struct net_device *dev, struct ethtool_eeprom *eeprom
if (eeprom->magic != SKY2_EEPROM_MAGIC)
return -EINVAL;
- while (length > 0) {
- u32 val;
- int n = min_t(int, length, sizeof(val));
-
- if (n < sizeof(val))
- val = sky2_vpd_read(sky2->hw, cap, offset);
- memcpy(&val, data, n);
-
- sky2_vpd_write(sky2->hw, cap, offset, val);
+ /* Partial writes not supported */
+ if ((eeprom->offset & 3) || (eeprom->len & 3))
+ return -EINVAL;
- length -= n;
- data += n;
- offset += n;
- }
- return 0;
+ return sky2_vpd_write(sky2->hw, cap, data, eeprom->offset, eeprom->len);
}
@@ -4178,6 +4191,69 @@ static int __devinit pci_wake_enabled(struct pci_dev *dev)
return value & PCI_PM_CTRL_PME_ENABLE;
}
+/*
+ * Read and parse the first part of Vital Product Data
+ */
+#define VPD_SIZE 128
+#define VPD_MAGIC 0x82
+
+static void __devinit sky2_vpd_info(struct sky2_hw *hw)
+{
+ int cap = pci_find_capability(hw->pdev, PCI_CAP_ID_VPD);
+ const u8 *p;
+ u8 *vpd_buf = NULL;
+ u16 len;
+ static struct vpd_tag {
+ char tag[2];
+ char *label;
+ } vpd_tags[] = {
+ { "PN", "Part Number" },
+ { "EC", "Engineering Level" },
+ { "MN", "Manufacturer" },
+ };
+
+ if (!cap)
+ goto out;
+
+ vpd_buf = kmalloc(VPD_SIZE, GFP_KERNEL);
+ if (!vpd_buf)
+ goto out;
+
+ if (sky2_vpd_read(hw, cap, vpd_buf, 0, VPD_SIZE))
+ goto out;
+
+ if (vpd_buf[0] != VPD_MAGIC)
+ goto out;
+ len = vpd_buf[1];
+ if (len == 0 || len > VPD_SIZE - 4)
+ goto out;
+ p = vpd_buf + 3;
+ dev_info(&hw->pdev->dev, "%.*s\n", len, p);
+ p += len;
+
+ while (p < vpd_buf + VPD_SIZE - 4) {
+ int i;
+
+ if (!memcmp("RW", p, 2)) /* end marker */
+ break;
+
+ len = p[2];
+ if (len > (p - vpd_buf) - 4)
+ break;
+
+ for (i = 0; i < ARRAY_SIZE(vpd_tags); i++) {
+ if (!memcmp(vpd_tags[i].tag, p, 2)) {
+ printk(KERN_DEBUG " %s: %.*s\n",
+ vpd_tags[i].label, len, p + 3);
+ break;
+ }
+ }
+ p += len + 3;
+ }
+out:
+ kfree(vpd_buf);
+}
+
/* This driver supports yukon2 chipset only */
static const char *sky2_name(u8 chipid, char *buf, int sz)
{
@@ -4276,13 +4352,13 @@ static int __devinit sky2_probe(struct pci_dev *pdev,
if (err)
goto err_out_iounmap;
- dev_info(&pdev->dev, "v%s addr 0x%llx irq %d Yukon-2 %s rev %d\n",
- DRV_VERSION, (unsigned long long)pci_resource_start(pdev, 0),
- pdev->irq, sky2_name(hw->chip_id, buf1, sizeof(buf1)),
- hw->chip_rev);
+ dev_info(&pdev->dev, "Yukon-2 %s chip revision %d\n",
+ sky2_name(hw->chip_id, buf1, sizeof(buf1)), hw->chip_rev);
sky2_reset(hw);
+ sky2_vpd_info(hw);
+
dev = sky2_init_netdev(hw, 0, using_dac, wol_default);
if (!dev) {
err = -ENOMEM;
@@ -4533,6 +4609,8 @@ static struct pci_driver sky2_driver = {
static int __init sky2_init_module(void)
{
+ pr_info(PFX "driver version " DRV_VERSION "\n");
+
sky2_debug_init();
return pci_register_driver(&sky2_driver);
}
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