lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening PHC | |
Open Source and information security mailing list archives
| ||
|
Date: Wed, 2 May 2007 23:48:58 +0100 From: Christoph Hellwig <hch@...radead.org> To: Michael Chan <mchan@...adcom.com> Cc: Jeff Garzik <jeff@...zik.org>, David Miller <davem@...emloft.net>, netdev <netdev@...r.kernel.org> Subject: Re: [PATCH 3/20][BNX2]: Add 40-bit DMA workaround for 5708. On Wed, May 02, 2007 at 01:02:41PM -0700, Michael Chan wrote: > Let's say I have a 32-bit card that cannot do dual address cycle on a > 64-bit dma_addr_t system without IOMMU. If CONFIG_HIGHMEM is not set, > wouldn't the device get > 32-bit DMA addresses that it cannot handle? It needs to set it's dma mask to 32bits and the upper layers (net, block) will do the bouncing for it. - 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
Powered by blists - more mailing lists