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Message-Id: <1166175286.3365.121.camel@laptopd505.fenrus.org> Date: Fri, 15 Dec 2006 10:34:46 +0100 From: Arjan van de Ven <arjan@...ux.intel.com> To: netdev@...r.kernel.org Subject: [patch 06/14] e1000: disable TSO on the 82544 with slab debugging Subject: e1000: disable TSO on the 82544 with slab debugging From: Jesse Brandeburg <jesse.brandeburg@...el.com> CONFIG_DEBUG_SLAB changes alignments of the data structures the slab allocators return. These break certain workarounds for TSO on the 82544. Since DEBUG_SLAB is relatively rare and not used for performance sensitive cases, the simplest fix is to disable TSO in this special situation. Signed-off-by: Jesse Brandeburg <jesse.brandeburg@...el.com> Signed-off-by: Auke Kok <auke-jan.h.kok@...el.com> Signed-off-by: Arjan van de Ven <arjan@...ux.intel.com> --- drivers/net/e1000/e1000_main.c | 6 ++++++ 1 file changed, 6 insertions(+) Index: linux-2.6/drivers/net/e1000/e1000_main.c =================================================================== --- linux-2.6.orig/drivers/net/e1000/e1000_main.c +++ linux-2.6/drivers/net/e1000/e1000_main.c @@ -911,6 +911,12 @@ e1000_probe(struct pci_dev *pdev, (adapter->hw.mac_type != e1000_82547)) netdev->features |= NETIF_F_TSO; +#ifdef CONFIG_DEBUG_SLAB + /* 82544's work arounds do not play nicely with DEBUG SLAB */ + if (adapter->hw.mac_type == e1000_82544) + netdev->features &= ~NETIF_F_TSO; +#endif + #ifdef NETIF_F_TSO6 if (adapter->hw.mac_type > e1000_82547_rev_2) netdev->features |= NETIF_F_TSO6; - To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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