On Wed, 2010-03-24 at 09:59 +0800, Johannes Berg wrote: > On Tue, 2010-03-23 at 21:51 +0100, Christian Lamparter wrote: > > While ar9170's USB transport packet size is currently set to 8KiB, > > the PHY is capable of receiving AMPDUs with up to 64KiB. > > Such a large frame will be split over several rx URBs and > > exceed the previously allocated space for rx stream reconstruction. > > > > This patch increases the buffer size to 64KiB which is > > in fact the phy & rx stream designed size limit. > > That's a pretty high order allocation, you may want to paged allocation > -- you'll end up doing a order 5 allocation here! Yup, order-5 given the struct skb_shared_info overhead in __alloc_skb(). If the URBs are split over, you probably don't need to allocate such a big chunk of memory in one go. You just need to connect them into a paged skb later before pushing to mac80211. BTW, I've moved the skb_linearize() from iwlwifi to mac80211. Will submit the patches today. Thanks, -yi -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
