[PATCH] sky2: fix receive flush/pause issues
Fix issues with pause and flush. This code works on
all chip versions tested.
Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
diff --git a/drivers/net/sky2.c b/drivers/net/sky2.c
index 0b9b701..83361ae 100644
--- a/drivers/net/sky2.c
+++ b/drivers/net/sky2.c
@@ -485,8 +485,8 @@
int i;
const u8 *addr = hw->dev[port]->dev_addr;
- sky2_write8(hw, SK_REG(port, GPHY_CTRL), GPC_RST_SET);
- sky2_write8(hw, SK_REG(port, GPHY_CTRL), GPC_RST_CLR);
+ sky2_write32(hw, SK_REG(port, GPHY_CTRL), GPC_RST_SET);
+ sky2_write32(hw, SK_REG(port, GPHY_CTRL), GPC_RST_CLR|GPC_ENA_PAUSE);
sky2_write8(hw, SK_REG(port, GMAC_CTRL), GMC_RST_CLR);
@@ -589,11 +589,8 @@
GMF_RX_CTRL_DEF);
/* Flush Rx MAC FIFO on any flow control or error */
- reg = GMR_FS_ANY_ERR;
- if (hw->chip_id == CHIP_ID_YUKON_XL && hw->chip_rev <= 1)
- reg = 0; /* WA dev #4.115 */
+ sky2_write16(hw, SK_REG(port, RX_GMF_FL_MSK), GMR_FS_ANY_ERR);
- sky2_write16(hw, SK_REG(port, RX_GMF_FL_MSK), reg);
/* Set threshold to 0xa (64 bytes)
* ASF disabled so no need to do WA dev #4.30
*/
@@ -1363,9 +1360,6 @@
unsigned port = sky2->port;
u16 reg;
- /* disable Rx GMAC FIFO flush mode */
- sky2_write8(hw, SK_REG(port, RX_GMF_CTRL_T), GMF_RX_F_FL_OFF);
-
/* Enable Transmit FIFO Underrun */
sky2_write8(hw, SK_REG(port, GMAC_IRQ_MSK), GMAC_DEF_MSK);
@@ -1611,9 +1605,12 @@
sky2->rx_next = (sky2->rx_next + 1) % sky2->rx_pending;
- if (!(status & GMR_FS_RX_OK) || (status & GMR_FS_ANY_ERR))
+ if (status & GMR_FS_ANY_ERR)
goto error;
+ if (!(status & GMR_FS_RX_OK))
+ goto resubmit;
+
if (length < RX_COPY_THRESHOLD) {
skb = alloc_skb(length + 2, GFP_ATOMIC);
if (!skb)
@@ -1662,9 +1659,6 @@
return skb;
error:
- if (status & GMR_FS_GOOD_FC)
- goto resubmit;
-
if (netif_msg_rx_err(sky2))
printk(KERN_INFO PFX "%s: rx error, status 0x%x length %d\n",
sky2->netdev->name, status, length);