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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.c217
1 files changed, 117 insertions, 100 deletions
diff --git a/drivers/net/sky2.c b/drivers/net/sky2.c
index 27da9b75ded..ffd267fab21 100644
--- a/drivers/net/sky2.c
+++ b/drivers/net/sky2.c
@@ -51,7 +51,7 @@
#include "sky2.h"
#define DRV_NAME "sky2"
-#define DRV_VERSION "1.2"
+#define DRV_VERSION "1.3"
#define PFX DRV_NAME " "
/*
@@ -79,6 +79,8 @@
#define NAPI_WEIGHT 64
#define PHY_RETRIES 1000
+#define RING_NEXT(x,s) (((x)+1) & ((s)-1))
+
static const u32 default_msg =
NETIF_MSG_DRV | NETIF_MSG_PROBE | NETIF_MSG_LINK
| NETIF_MSG_TIMER | NETIF_MSG_TX_ERR | NETIF_MSG_RX_ERR
@@ -96,6 +98,10 @@ static int disable_msi = 0;
module_param(disable_msi, int, 0);
MODULE_PARM_DESC(disable_msi, "Disable Message Signaled Interrupt (MSI)");
+static int idle_timeout = 100;
+module_param(idle_timeout, int, 0);
+MODULE_PARM_DESC(idle_timeout, "Idle timeout workaround for lost interrupts (ms)");
+
static const struct pci_device_id sky2_id_table[] = {
{ PCI_DEVICE(PCI_VENDOR_ID_SYSKONNECT, 0x9000) },
{ PCI_DEVICE(PCI_VENDOR_ID_SYSKONNECT, 0x9E00) },
@@ -299,7 +305,8 @@ static void sky2_phy_init(struct sky2_hw *hw, unsigned port)
struct sky2_port *sky2 = netdev_priv(hw->dev[port]);
u16 ctrl, ct1000, adv, pg, ledctrl, ledover;
- if (sky2->autoneg == AUTONEG_ENABLE && hw->chip_id != CHIP_ID_YUKON_XL) {
+ if (sky2->autoneg == AUTONEG_ENABLE &&
+ (hw->chip_id != CHIP_ID_YUKON_XL || hw->chip_id == CHIP_ID_YUKON_EC_U)) {
u16 ectrl = gm_phy_read(hw, port, PHY_MARV_EXT_CTRL);
ectrl &= ~(PHY_M_EC_M_DSC_MSK | PHY_M_EC_S_DSC_MSK |
@@ -327,7 +334,7 @@ static void sky2_phy_init(struct sky2_hw *hw, unsigned port)
ctrl |= PHY_M_PC_MDI_XMODE(PHY_M_PC_ENA_AUTO);
if (sky2->autoneg == AUTONEG_ENABLE &&
- hw->chip_id == CHIP_ID_YUKON_XL) {
+ (hw->chip_id == CHIP_ID_YUKON_XL || hw->chip_id == CHIP_ID_YUKON_EC_U)) {
ctrl &= ~PHY_M_PC_DSC_MSK;
ctrl |= PHY_M_PC_DSC(2) | PHY_M_PC_DOWN_S_ENA;
}
@@ -443,10 +450,11 @@ static void sky2_phy_init(struct sky2_hw *hw, unsigned port)
gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 3);
/* set LED Function Control register */
- gm_phy_write(hw, port, PHY_MARV_PHY_CTRL, (PHY_M_LEDC_LOS_CTRL(1) | /* LINK/ACT */
- PHY_M_LEDC_INIT_CTRL(7) | /* 10 Mbps */
- PHY_M_LEDC_STA1_CTRL(7) | /* 100 Mbps */
- PHY_M_LEDC_STA0_CTRL(7))); /* 1000 Mbps */
+ gm_phy_write(hw, port, PHY_MARV_PHY_CTRL,
+ (PHY_M_LEDC_LOS_CTRL(1) | /* LINK/ACT */
+ PHY_M_LEDC_INIT_CTRL(7) | /* 10 Mbps */
+ PHY_M_LEDC_STA1_CTRL(7) | /* 100 Mbps */
+ PHY_M_LEDC_STA0_CTRL(7))); /* 1000 Mbps */
/* set Polarity Control register */
gm_phy_write(hw, port, PHY_MARV_PHY_STAT,
@@ -460,6 +468,25 @@ static void sky2_phy_init(struct sky2_hw *hw, unsigned port)
/* restore page register */
gm_phy_write(hw, port, PHY_MARV_EXT_ADR, pg);
break;
+ case CHIP_ID_YUKON_EC_U:
+ pg = gm_phy_read(hw, port, PHY_MARV_EXT_ADR);
+
+ /* select page 3 to access LED control register */
+ gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 3);
+
+ /* set LED Function Control register */
+ gm_phy_write(hw, port, PHY_MARV_PHY_CTRL,
+ (PHY_M_LEDC_LOS_CTRL(1) | /* LINK/ACT */
+ PHY_M_LEDC_INIT_CTRL(8) | /* 10 Mbps */
+ PHY_M_LEDC_STA1_CTRL(7) | /* 100 Mbps */
+ PHY_M_LEDC_STA0_CTRL(7)));/* 1000 Mbps */
+
+ /* set Blink Rate in LED Timer Control Register */
+ gm_phy_write(hw, port, PHY_MARV_INT_MASK,
+ ledctrl | PHY_M_LED_BLINK_RT(BLINK_84MS));
+ /* restore page register */
+ gm_phy_write(hw, port, PHY_MARV_EXT_ADR, pg);
+ break;
default:
/* set Tx LED (LED_TX) to blink mode on Rx OR Tx activity */
@@ -468,19 +495,21 @@ static void sky2_phy_init(struct sky2_hw *hw, unsigned port)
ledover |= PHY_M_LED_MO_RX(MO_LED_OFF);
}
- if (hw->chip_id == CHIP_ID_YUKON_EC_U && hw->chip_rev >= 2) {
+ if (hw->chip_id == CHIP_ID_YUKON_EC_U && hw->chip_rev == CHIP_REV_YU_EC_A1) {
/* apply fixes in PHY AFE */
- gm_phy_write(hw, port, 22, 255);
+ pg = gm_phy_read(hw, port, PHY_MARV_EXT_ADR);
+ gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 255);
+
/* increase differential signal amplitude in 10BASE-T */
- gm_phy_write(hw, port, 24, 0xaa99);
- gm_phy_write(hw, port, 23, 0x2011);
+ gm_phy_write(hw, port, 0x18, 0xaa99);
+ gm_phy_write(hw, port, 0x17, 0x2011);
/* fix for IEEE A/B Symmetry failure in 1000BASE-T */
- gm_phy_write(hw, port, 24, 0xa204);
- gm_phy_write(hw, port, 23, 0x2002);
+ gm_phy_write(hw, port, 0x18, 0xa204);
+ gm_phy_write(hw, port, 0x17, 0x2002);
/* set page register to 0 */
- gm_phy_write(hw, port, 22, 0);
+ gm_phy_write(hw, port, PHY_MARV_EXT_ADR, pg);
} else {
gm_phy_write(hw, port, PHY_MARV_LED_CTRL, ledctrl);
@@ -554,6 +583,11 @@ static void sky2_mac_init(struct sky2_hw *hw, unsigned port)
if (sky2->duplex == DUPLEX_FULL)
reg |= GM_GPCR_DUP_FULL;
+
+ /* turn off pause in 10/100mbps half duplex */
+ else if (sky2->speed != SPEED_1000 &&
+ hw->chip_id != CHIP_ID_YUKON_EC_U)
+ sky2->tx_pause = sky2->rx_pause = 0;
} else
reg = GM_GPCR_SPEED_1000 | GM_GPCR_SPEED_100 | GM_GPCR_DUP_FULL;
@@ -720,7 +754,7 @@ static inline struct sky2_tx_le *get_tx_le(struct sky2_port *sky2)
{
struct sky2_tx_le *le = sky2->tx_le + sky2->tx_prod;
- sky2->tx_prod = (sky2->tx_prod + 1) % TX_RING_SIZE;
+ sky2->tx_prod = RING_NEXT(sky2->tx_prod, TX_RING_SIZE);
return le;
}
@@ -736,7 +770,7 @@ static inline void sky2_put_idx(struct sky2_hw *hw, unsigned q, u16 idx)
static inline struct sky2_rx_le *sky2_next_rx(struct sky2_port *sky2)
{
struct sky2_rx_le *le = sky2->rx_le + sky2->rx_put;
- sky2->rx_put = (sky2->rx_put + 1) % RX_LE_SIZE;
+ sky2->rx_put = RING_NEXT(sky2->rx_put, RX_LE_SIZE);
return le;
}
@@ -1079,7 +1113,7 @@ err_out:
/* Modular subtraction in ring */
static inline int tx_dist(unsigned tail, unsigned head)
{
- return (head - tail) % TX_RING_SIZE;
+ return (head - tail) & (TX_RING_SIZE - 1);
}
/* Number of list elements available for next tx */
@@ -1256,7 +1290,7 @@ static int sky2_xmit_frame(struct sk_buff *skb, struct net_device *dev)
le->opcode = OP_BUFFER | HW_OWNER;
fre = sky2->tx_ring
- + ((re - sky2->tx_ring) + i + 1) % TX_RING_SIZE;
+ + RING_NEXT((re - sky2->tx_ring) + i, TX_RING_SIZE);
pci_unmap_addr_set(fre, mapaddr, mapping);
}
@@ -1316,7 +1350,7 @@ static void sky2_tx_complete(struct sky2_port *sky2, u16 done)
for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
struct tx_ring_info *fre;
- fre = sky2->tx_ring + (put + i + 1) % TX_RING_SIZE;
+ fre = sky2->tx_ring + RING_NEXT(put + i, TX_RING_SIZE);
pci_unmap_page(pdev, pci_unmap_addr(fre, mapaddr),
skb_shinfo(skb)->frags[i].size,
PCI_DMA_TODEVICE);
@@ -1499,17 +1533,26 @@ static void sky2_link_up(struct sky2_port *sky2)
sky2_write8(hw, SK_REG(port, LNK_LED_REG),
LINKLED_ON | LINKLED_BLINK_OFF | LINKLED_LINKSYNC_OFF);
- if (hw->chip_id == CHIP_ID_YUKON_XL) {
+ if (hw->chip_id == CHIP_ID_YUKON_XL || hw->chip_id == CHIP_ID_YUKON_EC_U) {
u16 pg = gm_phy_read(hw, port, PHY_MARV_EXT_ADR);
+ u16 led = PHY_M_LEDC_LOS_CTRL(1); /* link active */
+
+ switch(sky2->speed) {
+ case SPEED_10:
+ led |= PHY_M_LEDC_INIT_CTRL(7);
+ break;
+
+ case SPEED_100:
+ led |= PHY_M_LEDC_STA1_CTRL(7);
+ break;
+
+ case SPEED_1000:
+ led |= PHY_M_LEDC_STA0_CTRL(7);
+ break;
+ }
gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 3);
- gm_phy_write(hw, port, PHY_MARV_PHY_CTRL, PHY_M_LEDC_LOS_CTRL(1) | /* LINK/ACT */
- PHY_M_LEDC_INIT_CTRL(sky2->speed ==
- SPEED_10 ? 7 : 0) |
- PHY_M_LEDC_STA1_CTRL(sky2->speed ==
- SPEED_100 ? 7 : 0) |
- PHY_M_LEDC_STA0_CTRL(sky2->speed ==
- SPEED_1000 ? 7 : 0));
+ gm_phy_write(hw, port, PHY_MARV_PHY_CTRL, led);
gm_phy_write(hw, port, PHY_MARV_EXT_ADR, pg);
}
@@ -1584,7 +1627,7 @@ static int sky2_autoneg_done(struct sky2_port *sky2, u16 aux)
sky2->speed = sky2_phy_speed(hw, aux);
/* Pause bits are offset (9..8) */
- if (hw->chip_id == CHIP_ID_YUKON_XL)
+ if (hw->chip_id == CHIP_ID_YUKON_XL || hw->chip_id == CHIP_ID_YUKON_EC_U)
aux >>= 6;
sky2->rx_pause = (aux & PHY_M_PS_RX_P_EN) != 0;
@@ -1860,35 +1903,28 @@ static inline void sky2_tx_done(struct net_device *dev, u16 last)
static int sky2_status_intr(struct sky2_hw *hw, int to_do)
{
int work_done = 0;
+ u16 hwidx = sky2_read16(hw, STAT_PUT_IDX);
rmb();
- for(;;) {
+ while (hw->st_idx != hwidx) {
struct sky2_status_le *le = hw->st_le + hw->st_idx;
struct net_device *dev;
struct sky2_port *sky2;
struct sk_buff *skb;
u32 status;
u16 length;
- u8 link, opcode;
- opcode = le->opcode;
- if (!opcode)
- break;
- opcode &= ~HW_OWNER;
-
- hw->st_idx = (hw->st_idx + 1) % STATUS_RING_SIZE;
- le->opcode = 0;
+ hw->st_idx = RING_NEXT(hw->st_idx, STATUS_RING_SIZE);
- link = le->link;
- BUG_ON(link >= 2);
- dev = hw->dev[link];
+ BUG_ON(le->link >= 2);
+ dev = hw->dev[le->link];
sky2 = netdev_priv(dev);
length = le->length;
status = le->status;
- switch (opcode) {
+ switch (le->opcode & ~HW_OWNER) {
case OP_RXSTAT:
skb = sky2_receive(sky2, length, status);
if (!skb)
@@ -1928,7 +1964,8 @@ static int sky2_status_intr(struct sky2_hw *hw, int to_do)
case OP_TXINDEXLE:
/* TX index reports status for both ports */
- sky2_tx_done(hw->dev[0], status & 0xffff);
+ BUILD_BUG_ON(TX_RING_SIZE > 0x1000);
+ sky2_tx_done(hw->dev[0], status & 0xfff);
if (hw->dev[1])
sky2_tx_done(hw->dev[1],
((status >> 24) & 0xff)
@@ -1938,8 +1975,8 @@ static int sky2_status_intr(struct sky2_hw *hw, int to_do)
default:
if (net_ratelimit())
printk(KERN_WARNING PFX
- "unknown status opcode 0x%x\n", opcode);
- break;
+ "unknown status opcode 0x%x\n", le->opcode);
+ goto exit_loop;
}
}
@@ -2090,12 +2127,13 @@ static void sky2_descriptor_error(struct sky2_hw *hw, unsigned port,
*/
static void sky2_idle(unsigned long arg)
{
- struct net_device *dev = (struct net_device *) arg;
+ struct sky2_hw *hw = (struct sky2_hw *) arg;
+ struct net_device *dev = hw->dev[0];
- local_irq_disable();
if (__netif_rx_schedule_prep(dev))
__netif_rx_schedule(dev);
- local_irq_enable();
+
+ mod_timer(&hw->idle_timer, jiffies + msecs_to_jiffies(idle_timeout));
}
@@ -2106,65 +2144,46 @@ static int sky2_poll(struct net_device *dev0, int *budget)
int work_done = 0;
u32 status = sky2_read32(hw, B0_Y2_SP_EISR);
- restart_poll:
- if (unlikely(status & ~Y2_IS_STAT_BMU)) {
- if (status & Y2_IS_HW_ERR)
- sky2_hw_intr(hw);
-
- if (status & Y2_IS_IRQ_PHY1)
- sky2_phy_intr(hw, 0);
-
- if (status & Y2_IS_IRQ_PHY2)
- sky2_phy_intr(hw, 1);
+ if (status & Y2_IS_HW_ERR)
+ sky2_hw_intr(hw);
- if (status & Y2_IS_IRQ_MAC1)
- sky2_mac_intr(hw, 0);
+ if (status & Y2_IS_IRQ_PHY1)
+ sky2_phy_intr(hw, 0);
- if (status & Y2_IS_IRQ_MAC2)
- sky2_mac_intr(hw, 1);
+ if (status & Y2_IS_IRQ_PHY2)
+ sky2_phy_intr(hw, 1);
- if (status & Y2_IS_CHK_RX1)
- sky2_descriptor_error(hw, 0, "receive", Y2_IS_CHK_RX1);
+ if (status & Y2_IS_IRQ_MAC1)
+ sky2_mac_intr(hw, 0);
- if (status & Y2_IS_CHK_RX2)
- sky2_descriptor_error(hw, 1, "receive", Y2_IS_CHK_RX2);
+ if (status & Y2_IS_IRQ_MAC2)
+ sky2_mac_intr(hw, 1);
- if (status & Y2_IS_CHK_TXA1)
- sky2_descriptor_error(hw, 0, "transmit", Y2_IS_CHK_TXA1);
+ if (status & Y2_IS_CHK_RX1)
+ sky2_descriptor_error(hw, 0, "receive", Y2_IS_CHK_RX1);
- if (status & Y2_IS_CHK_TXA2)
- sky2_descriptor_error(hw, 1, "transmit", Y2_IS_CHK_TXA2);
- }
+ if (status & Y2_IS_CHK_RX2)
+ sky2_descriptor_error(hw, 1, "receive", Y2_IS_CHK_RX2);
- if (status & Y2_IS_STAT_BMU) {
- work_done += sky2_status_intr(hw, work_limit - work_done);
- *budget -= work_done;
- dev0->quota -= work_done;
+ if (status & Y2_IS_CHK_TXA1)
+ sky2_descriptor_error(hw, 0, "transmit", Y2_IS_CHK_TXA1);
- if (work_done >= work_limit)
- return 1;
+ if (status & Y2_IS_CHK_TXA2)
+ sky2_descriptor_error(hw, 1, "transmit", Y2_IS_CHK_TXA2);
+ if (status & Y2_IS_STAT_BMU)
sky2_write32(hw, STAT_CTRL, SC_STAT_CLR_IRQ);
- }
-
- mod_timer(&hw->idle_timer, jiffies + HZ);
- local_irq_disable();
- __netif_rx_complete(dev0);
+ work_done = sky2_status_intr(hw, work_limit);
+ *budget -= work_done;
+ dev0->quota -= work_done;
- status = sky2_read32(hw, B0_Y2_SP_LISR);
+ if (work_done >= work_limit)
+ return 1;
- if (unlikely(status)) {
- /* More work pending, try and keep going */
- if (__netif_rx_schedule_prep(dev0)) {
- __netif_rx_reschedule(dev0, work_done);
- status = sky2_read32(hw, B0_Y2_SP_EISR);
- local_irq_enable();
- goto restart_poll;
- }
- }
+ netif_rx_complete(dev0);
- local_irq_enable();
+ status = sky2_read32(hw, B0_Y2_SP_LISR);
return 0;
}
@@ -2245,13 +2264,6 @@ static int __devinit sky2_reset(struct sky2_hw *hw)
return -EOPNOTSUPP;
}
- /* This chip is new and not tested yet */
- if (hw->chip_id == CHIP_ID_YUKON_EC_U) {
- pr_info(PFX "%s: is a version of Yukon 2 chipset that has not been tested yet.\n",
- pci_name(hw->pdev));
- pr_info("Please report success/failure to maintainer <shemminger@osdl.org>\n");
- }
-
/* disable ASF */
if (hw->chip_id <= CHIP_ID_YUKON_EC) {
sky2_write8(hw, B28_Y2_ASF_STAT_CMD, Y2_ASF_RESET);
@@ -3303,7 +3315,10 @@ static int __devinit sky2_probe(struct pci_dev *pdev,
sky2_write32(hw, B0_IMSK, Y2_IS_BASE);
- setup_timer(&hw->idle_timer, sky2_idle, (unsigned long) dev);
+ setup_timer(&hw->idle_timer, sky2_idle, (unsigned long) hw);
+ if (idle_timeout > 0)
+ mod_timer(&hw->idle_timer,
+ jiffies + msecs_to_jiffies(idle_timeout));
pci_set_drvdata(pdev, hw);
@@ -3343,6 +3358,8 @@ static void __devexit sky2_remove(struct pci_dev *pdev)
del_timer_sync(&hw->idle_timer);
sky2_write32(hw, B0_IMSK, 0);
+ synchronize_irq(hw->pdev->irq);
+
dev0 = hw->dev[0];
dev1 = hw->dev[1];
if (dev1)
generated by cgit v1.2.3-18-g5258 (git 2.32.0) at 2024-12-23 15:00:22 +0000