Messages in this thread Patch in this message | | | Date | Tue, 29 Dec 2009 11:49:38 -0800 | From | Stephen Hemminger <> | Subject | Re: sky2 panic in 2.6.32.1 under load (new oops) |
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This patch will dump more info in case of hardware error.
--- a/drivers/net/sky2.c 2009-12-29 11:30:06.441137685 -0800 +++ b/drivers/net/sky2.c 2009-12-29 11:46:37.389262922 -0800 @@ -2629,12 +2625,71 @@ static void sky2_hw_error(struct sky2_hw } } +static void dump_txring(struct sky2_hw *hw, unsigned port) +{ + struct sky2_port *sky2 = netdev_priv(hw->dev[port]); + int sop = 1; + unsigned idx; + + printk(KERN_INFO PFX "Tx ring pending=%u...%u report=%d done=%d\n", + sky2->tx_cons, sky2->tx_prod, + sky2_read16(hw, port == 0 ? STAT_TXA1_RIDX : STAT_TXA2_RIDX), + sky2_read16(hw, Q_ADDR(txqaddr[port], Q_DONE))); + + /* Dump contents of tx ring */ + for (idx = sky2->tx_next; + idx != sky2->tx_prod && idx < sky2->tx_ring_size; + idx = RING_NEXT(idx, sky2->tx_ring_size)) { + const struct sky2_tx_le *le = sky2->tx_le + idx; + u32 a = le32_to_cpu(le->addr); + + if (sop) + printk(KERN_DEBUG "%u:", idx); + sop = 0; + + switch(le->opcode & ~HW_OWNER) { + case OP_ADDR64: + printk(" %#x:", a); + break; + case OP_LRGLEN: + printk(" mtu=%d", a); + break; + case OP_VLAN: + printk(" vlan=%d", be16_to_cpu(le->length)); + break; + case OP_TCPLISW: + printk(" csum=%#x", a); + break; + case OP_LARGESEND: + printk(" tso=%#x(%d)", a, le16_to_cpu(le->length)); + break; + case OP_PACKET: + printk(" %#x(%d)", a, le16_to_cpu(le->length)); + break; + case OP_BUFFER: + printk(" frag=%#x(%d)", a, le16_to_cpu(le->length)); + break; + default: + printk(" op=%#x,%#x(%d)", le->opcode, a, + le16_to_cpu(le->length)); + } + + if (le->ctrl & EOP) { + printk("\n"); + sop = 1; + } + } +} + static void sky2_hw_intr(struct sky2_hw *hw) { struct pci_dev *pdev = hw->pdev; u32 status = sky2_read32(hw, B0_HWE_ISRC); u32 hwmsk = sky2_read32(hw, B0_HWE_IMSK); + printk(KERN_DEBUG PFX "hardware interrupt status %#x\n", status); + dump_txring(hw, 0); + status &= hwmsk; if (status & Y2_IS_TIST_OV) --
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