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author | Jaroslav Kysela <perex@perex.cz> | 2010-01-08 11:26:34 +0300 |
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committer | Jaroslav Kysela <perex@perex.cz> | 2010-01-08 11:26:34 +0300 |
commit | 1cb4f624ea38361b6397966470f0a1bed5532483 (patch) | |
tree | 418b05ddc854b09d64f7d5ee0c78875e42b5f151 /drivers/net/ucc_geth.c | |
parent | 444c1953d496d272208902ff7010dc70d1f887f0 (diff) | |
parent | 2c1f1895ef2aa8f0e5497893eff71304aef332e1 (diff) | |
download | linux-1cb4f624ea38361b6397966470f0a1bed5532483.tar.xz |
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 into fixes
Diffstat (limited to 'drivers/net/ucc_geth.c')
-rw-r--r-- | drivers/net/ucc_geth.c | 42 |
1 files changed, 24 insertions, 18 deletions
diff --git a/drivers/net/ucc_geth.c b/drivers/net/ucc_geth.c index afaf088b72ea..41ad2f3697c7 100644 --- a/drivers/net/ucc_geth.c +++ b/drivers/net/ucc_geth.c @@ -1563,7 +1563,10 @@ static int ugeth_disable(struct ucc_geth_private *ugeth, enum comm_dir mode) static void ugeth_quiesce(struct ucc_geth_private *ugeth) { - /* Wait for and prevent any further xmits. */ + /* Prevent any further xmits, plus detach the device. */ + netif_device_detach(ugeth->ndev); + + /* Wait for any current xmits to finish. */ netif_tx_disable(ugeth->ndev); /* Disable the interrupt to avoid NAPI rescheduling. */ @@ -1577,7 +1580,7 @@ static void ugeth_activate(struct ucc_geth_private *ugeth) { napi_enable(&ugeth->napi); enable_irq(ugeth->ug_info->uf_info.irq); - netif_tx_wake_all_queues(ugeth->ndev); + netif_device_attach(ugeth->ndev); } /* Called every time the controller might need to be made @@ -1648,25 +1651,28 @@ static void adjust_link(struct net_device *dev) ugeth->oldspeed = phydev->speed; } - /* - * To change the MAC configuration we need to disable the - * controller. To do so, we have to either grab ugeth->lock, - * which is a bad idea since 'graceful stop' commands might - * take quite a while, or we can quiesce driver's activity. - */ - ugeth_quiesce(ugeth); - ugeth_disable(ugeth, COMM_DIR_RX_AND_TX); - - out_be32(&ug_regs->maccfg2, tempval); - out_be32(&uf_regs->upsmr, upsmr); - - ugeth_enable(ugeth, COMM_DIR_RX_AND_TX); - ugeth_activate(ugeth); - if (!ugeth->oldlink) { new_state = 1; ugeth->oldlink = 1; } + + if (new_state) { + /* + * To change the MAC configuration we need to disable + * the controller. To do so, we have to either grab + * ugeth->lock, which is a bad idea since 'graceful + * stop' commands might take quite a while, or we can + * quiesce driver's activity. + */ + ugeth_quiesce(ugeth); + ugeth_disable(ugeth, COMM_DIR_RX_AND_TX); + + out_be32(&ug_regs->maccfg2, tempval); + out_be32(&uf_regs->upsmr, upsmr); + + ugeth_enable(ugeth, COMM_DIR_RX_AND_TX); + ugeth_activate(ugeth); + } } else if (ugeth->oldlink) { new_state = 1; ugeth->oldlink = 0; @@ -3273,7 +3279,7 @@ static int ucc_geth_tx(struct net_device *dev, u8 txQ) /* Handle the transmitted buffer and release */ /* the BD to be used with the current frame */ - if ((bd == ugeth->txBd[txQ]) && (netif_queue_stopped(dev) == 0)) + if (bd == ugeth->txBd[txQ]) /* queue empty? */ break; dev->stats.tx_packets++; |