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From: Nishanth Aravamudan <nacc@linux.vnet.ibm.com>
To: Christoph Hellwig <hch@infradead.org>
Cc: Keith Busch <keith.busch@intel.com>,
	aik@ozlabs.ru, linux-kernel@vger.kernel.org,
	linux-nvme@lists.infradead.org, paulus@samba.org,
	sparclinux@vger.kernel.org, willy@linux.intel.com,
	linuxppc-dev@lists.ozlabs.org, David Miller <davem@davemloft.net>,
	david@gibson.dropbear.id.au
Subject: Re: [PATCH 1/1 v4] drivers/nvme: default to 4k device page size
Date: Fri, 6 Nov 2015 08:13:45 -0800	[thread overview]
Message-ID: <20151106161345.GB18259@linux.vnet.ibm.com> (raw)
In-Reply-To: <20151105195839.GB3194@infradead.org>

On 05.11.2015 [11:58:39 -0800], Christoph Hellwig wrote:
> Looks fine,
> 
> Reviewed-by: Christoph Hellwig <hch@lst.de>
> 
> ... but I doubt we'll ever bother updating it.  Most architectures
> with arger page sizes also have iommus and would need different settings
> for different iommus vs direct mapping for very little gain.  There's a
> reason why we never bothered for RDMA either.

FWIW, whose tree should this go through? The bug only appears on Power,
afaik, but the patch is now just an NVMe change.

Thanks,
Nish

  parent reply	other threads:[~2015-11-06 16:14 UTC|newest]

Thread overview: 49+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-10-23 20:54 [PATCH 0/5 v3] Fix NVMe driver support on Power with 32-bit DMA Nishanth Aravamudan
2015-10-23 20:56 ` [PATCH 1/7 v3] dma-mapping: add generic dma_get_page_shift API Nishanth Aravamudan
2015-10-23 20:57 ` [PATCH 2/7 v2] powerpc/dma-mapping: override dma_get_page_shift Nishanth Aravamudan
2015-10-27  6:02   ` Alexey Kardashevskiy
2015-10-27 14:06     ` Busch, Keith
2015-10-27 22:27     ` Nishanth Aravamudan
2015-10-28  1:00       ` Alexey Kardashevskiy
2015-10-28  1:54         ` Nishanth Aravamudan
2015-10-28  2:20           ` Benjamin Herrenschmidt
2015-10-28  2:30             ` Nishanth Aravamudan
2015-10-28  3:20               ` Benjamin Herrenschmidt
2015-10-23 20:57 ` [PATCH 0/5 v3] Fix NVMe driver support on Power with 32-bit DMA Nishanth Aravamudan
2015-10-23 20:58 ` [PATCH 3/7 v2] powerpc/dma: implement per-platform dma_get_page_shift Nishanth Aravamudan
2015-10-23 20:59 ` [PATCH 4/7 v2] pseries/iommu: implement DDW-aware dma_get_page_shift Nishanth Aravamudan
2015-10-27  5:56   ` Alexey Kardashevskiy
2015-10-27 22:22     ` Nishanth Aravamudan
2015-10-23 21:00 ` [PATCH 5/7] [RFC PATCH 5/7] sparc: rename kernel/iommu_common.h -> include/asm/iommu_common.h Nishanth Aravamudan
2015-10-23 21:02   ` Nishanth Aravamudan
2015-10-23 21:01 ` [RFC PATCH 6/7] sparc/dma-mapping: override dma_get_page_shift Nishanth Aravamudan
2015-10-23 21:02 ` [PATCH 7/7 v2] drivers/nvme: default to the IOMMU page size Nishanth Aravamudan
2015-10-27  1:27 ` [PATCH 0/5 v3] Fix NVMe driver support on Power with 32-bit DMA David Miller
2015-10-27 22:20   ` Nishanth Aravamudan
2015-10-27 22:36     ` Busch, Keith
2015-10-28  0:54       ` David Miller
2015-10-28 13:59         ` Busch, Keith
2015-10-29 11:55           ` Christoph Hellwig
2015-10-29 15:57             ` Nishanth Aravamudan
2015-10-29 17:20               ` Busch, Keith
2015-10-30 21:35                 ` [PATCH 1/1 v3] drivers/nvme: default to 4k device page size Nishanth Aravamudan
2015-10-30 21:48                   ` Keith Busch
2015-10-30 22:13                     ` Nishanth Aravamudan
2015-11-03 13:18                   ` Christoph Hellwig
2015-11-03 13:46                     ` Keith Busch
2015-11-05 17:01                       ` [PATCH 1/1 v4] " Nishanth Aravamudan
2015-11-05 19:58                         ` Christoph Hellwig
2015-11-05 21:54                           ` Nishanth Aravamudan
2015-11-06 16:13                           ` Nishanth Aravamudan [this message]
2015-11-13  7:37                           ` Christoph Hellwig
2015-11-13 15:08                             ` Keith Busch
2015-11-18 14:42                               ` Christoph Hellwig
2015-10-30  1:49               ` [PATCH 0/5 v3] Fix NVMe driver support on Power with 32-bit DMA David Miller
2015-10-30 21:35                 ` Nishanth Aravamudan
2015-10-27 22:57     ` Julian Calaby
2015-10-27 23:40       ` Nishanth Aravamudan
2015-10-27 23:43         ` Julian Calaby
2015-10-28  0:29           ` Benjamin Herrenschmidt
2015-10-28  1:00           ` David Miller
2015-10-28  0:53     ` David Miller
2015-10-28  1:52       ` Nishanth Aravamudan

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