diff options
Diffstat (limited to 'drivers/net/sky2.c')
| -rw-r--r-- | drivers/net/sky2.c | 96 |
1 files changed, 50 insertions, 46 deletions
diff --git a/drivers/net/sky2.c b/drivers/net/sky2.c index 67249c3c9f50..a6ddfc1a9cb2 100644 --- a/drivers/net/sky2.c +++ b/drivers/net/sky2.c @@ -3188,7 +3188,9 @@ static void sky2_reset(struct sky2_hw *hw) static void sky2_detach(struct net_device *dev) { if (netif_running(dev)) { + netif_tx_lock(dev); netif_device_detach(dev); /* stop txq */ + netif_tx_unlock(dev); sky2_down(dev); } } @@ -3864,6 +3866,50 @@ static int sky2_get_regs_len(struct net_device *dev) return 0x4000; } +static int sky2_reg_access_ok(struct sky2_hw *hw, unsigned int b) +{ + /* This complicated switch statement is to make sure and + * only access regions that are unreserved. + * Some blocks are only valid on dual port cards. + */ + switch (b) { + /* second port */ + case 5: /* Tx Arbiter 2 */ + case 9: /* RX2 */ + case 14 ... 15: /* TX2 */ + case 17: case 19: /* Ram Buffer 2 */ + case 22 ... 23: /* Tx Ram Buffer 2 */ + case 25: /* Rx MAC Fifo 1 */ + case 27: /* Tx MAC Fifo 2 */ + case 31: /* GPHY 2 */ + case 40 ... 47: /* Pattern Ram 2 */ + case 52: case 54: /* TCP Segmentation 2 */ + case 112 ... 116: /* GMAC 2 */ + return hw->ports > 1; + + case 0: /* Control */ + case 2: /* Mac address */ + case 4: /* Tx Arbiter 1 */ + case 7: /* PCI express reg */ + case 8: /* RX1 */ + case 12 ... 13: /* TX1 */ + case 16: case 18:/* Rx Ram Buffer 1 */ + case 20 ... 21: /* Tx Ram Buffer 1 */ + case 24: /* Rx MAC Fifo 1 */ + case 26: /* Tx MAC Fifo 1 */ + case 28 ... 29: /* Descriptor and status unit */ + case 30: /* GPHY 1*/ + case 32 ... 39: /* Pattern Ram 1 */ + case 48: case 50: /* TCP Segmentation 1 */ + case 56 ... 60: /* PCI space */ + case 80 ... 84: /* GMAC 1 */ + return 1; + + default: + return 0; + } +} + /* * Returns copy of control register region * Note: ethtool_get_regs always provides full size (16k) buffer @@ -3878,55 +3924,13 @@ static void sky2_get_regs(struct net_device *dev, struct ethtool_regs *regs, regs->version = 1; for (b = 0; b < 128; b++) { - /* This complicated switch statement is to make sure and - * only access regions that are unreserved. - * Some blocks are only valid on dual port cards. - * and block 3 has some special diagnostic registers that - * are poison. - */ - switch (b) { - case 3: - /* skip diagnostic ram region */ + /* skip poisonous diagnostic ram region in block 3 */ + if (b == 3) memcpy_fromio(p + 0x10, io + 0x10, 128 - 0x10); - break; - - /* dual port cards only */ - case 5: /* Tx Arbiter 2 */ - case 9: /* RX2 */ - case 14 ... 15: /* TX2 */ - case 17: case 19: /* Ram Buffer 2 */ - case 22 ... 23: /* Tx Ram Buffer 2 */ - case 25: /* Rx MAC Fifo 1 */ - case 27: /* Tx MAC Fifo 2 */ - case 31: /* GPHY 2 */ - case 40 ... 47: /* Pattern Ram 2 */ - case 52: case 54: /* TCP Segmentation 2 */ - case 112 ... 116: /* GMAC 2 */ - if (sky2->hw->ports == 1) - goto reserved; - /* fall through */ - case 0: /* Control */ - case 2: /* Mac address */ - case 4: /* Tx Arbiter 1 */ - case 7: /* PCI express reg */ - case 8: /* RX1 */ - case 12 ... 13: /* TX1 */ - case 16: case 18:/* Rx Ram Buffer 1 */ - case 20 ... 21: /* Tx Ram Buffer 1 */ - case 24: /* Rx MAC Fifo 1 */ - case 26: /* Tx MAC Fifo 1 */ - case 28 ... 29: /* Descriptor and status unit */ - case 30: /* GPHY 1*/ - case 32 ... 39: /* Pattern Ram 1 */ - case 48: case 50: /* TCP Segmentation 1 */ - case 56 ... 60: /* PCI space */ - case 80 ... 84: /* GMAC 1 */ + else if (sky2_reg_access_ok(sky2->hw, b)) memcpy_fromio(p, io, 128); - break; - default: -reserved: + else memset(p, 0, 128); - } p += 128; io += 128; |