From bbd98fe48a43464b4a044bc4cbeefad284d6aa80 Mon Sep 17 00:00:00 2001 From: Alexander Duyck Date: Sat, 31 Jan 2009 00:52:30 -0800 Subject: [PATCH] igb: Fix DCA errors and do not use context index for 82576 82576 was being incorrectly flagged as needing a context index. It does not as each ring has it's own table of 2 contexts. Driver was registering after registering the driver instead of the other way around. Signed-off-by: Alexander Duyck Signed-off-by: Jeff Kirsher Signed-off-by: David S. Miller --- drivers/net/igb/igb.h | 9 ++++----- drivers/net/igb/igb_main.c | 16 ++++++---------- 2 files changed, 10 insertions(+), 15 deletions(-) diff --git a/drivers/net/igb/igb.h b/drivers/net/igb/igb.h index 5a27825cc48..aebef8e48e7 100644 --- a/drivers/net/igb/igb.h +++ b/drivers/net/igb/igb.h @@ -300,11 +300,10 @@ struct igb_adapter { #define IGB_FLAG_HAS_MSI (1 << 0) #define IGB_FLAG_MSI_ENABLE (1 << 1) -#define IGB_FLAG_HAS_DCA (1 << 2) -#define IGB_FLAG_DCA_ENABLED (1 << 3) -#define IGB_FLAG_IN_NETPOLL (1 << 5) -#define IGB_FLAG_QUAD_PORT_A (1 << 6) -#define IGB_FLAG_NEED_CTX_IDX (1 << 7) +#define IGB_FLAG_DCA_ENABLED (1 << 2) +#define IGB_FLAG_IN_NETPOLL (1 << 3) +#define IGB_FLAG_QUAD_PORT_A (1 << 4) +#define IGB_FLAG_NEED_CTX_IDX (1 << 5) enum e1000_state_t { __IGB_TESTING, diff --git a/drivers/net/igb/igb_main.c b/drivers/net/igb/igb_main.c index b82b0fb2056..cc94412ddf8 100644 --- a/drivers/net/igb/igb_main.c +++ b/drivers/net/igb/igb_main.c @@ -206,10 +206,11 @@ static int __init igb_init_module(void) global_quad_port_a = 0; - ret = pci_register_driver(&igb_driver); #ifdef CONFIG_IGB_DCA dca_register_notify(&dca_notifier); #endif + + ret = pci_register_driver(&igb_driver); return ret; } @@ -1156,11 +1157,10 @@ static int __devinit igb_probe(struct pci_dev *pdev, /* set flags */ switch (hw->mac.type) { - case e1000_82576: case e1000_82575: - adapter->flags |= IGB_FLAG_HAS_DCA; adapter->flags |= IGB_FLAG_NEED_CTX_IDX; break; + case e1000_82576: default: break; } @@ -1310,8 +1310,7 @@ static int __devinit igb_probe(struct pci_dev *pdev, goto err_register; #ifdef CONFIG_IGB_DCA - if ((adapter->flags & IGB_FLAG_HAS_DCA) && - (dca_add_requester(&pdev->dev) == 0)) { + if (dca_add_requester(&pdev->dev) == 0) { adapter->flags |= IGB_FLAG_DCA_ENABLED; dev_info(&pdev->dev, "DCA enabled\n"); /* Always use CB2 mode, difference is masked @@ -3473,19 +3472,16 @@ static int __igb_notify_dca(struct device *dev, void *data) struct e1000_hw *hw = &adapter->hw; unsigned long event = *(unsigned long *)data; - if (!(adapter->flags & IGB_FLAG_HAS_DCA)) - goto out; - switch (event) { case DCA_PROVIDER_ADD: /* if already enabled, don't do it again */ if (adapter->flags & IGB_FLAG_DCA_ENABLED) break; - adapter->flags |= IGB_FLAG_DCA_ENABLED; /* Always use CB2 mode, difference is masked * in the CB driver. */ wr32(E1000_DCA_CTRL, 2); if (dca_add_requester(dev) == 0) { + adapter->flags |= IGB_FLAG_DCA_ENABLED; dev_info(&adapter->pdev->dev, "DCA enabled\n"); igb_setup_dca(adapter); break; @@ -3502,7 +3498,7 @@ static int __igb_notify_dca(struct device *dev, void *data) } break; } -out: + return 0; } -- 2.41.1