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Date: Wed, 16 May 2007 23:36:56 -0700 From: "Williams, Dan J" <dan.j.williams@...el.com> To: "Williams, Dan J" <dan.j.williams@...el.com>, "Cornelia Huck" <cornelia.huck@...ibm.com>, "Andrew Morton" <akpm@...ux-foundation.org> Cc: <linux-kernel@...r.kernel.org>, "NeilBrown" <neilb@...e.de>, "Martin Schwidefsky" <schwidefsky@...ibm.com>, "linux-s390" <linux-s390@...r.kernel.org> Subject: RE: 2.6.22-rc1-mm1 - s390 vs. md > From: Williams, Dan J > On a closer look, it seems async_tx should be its own directory like crypto... > I'll post the incremental changes to the md-accel git tree for review. > Here is a copy of the patch added to the md-accel series (git://lost.foo-projects.org/~dwillia2/git/iop md-accel-linus). This along with some other code re-factoring makes async_tx mimic the organization of crypto, and should resolve the S390 clash. --- async_tx: add the Kconfig infrastructure for async_tx From: Dan Williams <dan.j.williams@...el.com> async_tx is similar to crypto in that there is an api component and a drivers component. * Add 'source "async_tx/Kconfig"' to the per architecture Kconfig files, for each architecture that sources drivers/md/Kconfig (which appears to be all of them). * Add 'select' statements for the subsystems that use async_tx (md-raid4,5) Signed-off-by: Dan Williams <dan.j.williams@...el.com> --- arch/alpha/Kconfig | 1 + arch/arm/Kconfig | 2 ++ arch/arm26/Kconfig | 2 ++ arch/avr32/Kconfig | 2 ++ arch/blackfin/Kconfig | 2 ++ arch/cris/Kconfig | 2 ++ arch/frv/Kconfig | 2 ++ arch/h8300/Kconfig | 2 ++ arch/i386/Kconfig | 2 ++ arch/ia64/Kconfig | 2 ++ arch/m32r/Kconfig | 2 ++ arch/m68k/Kconfig | 2 ++ arch/m68knommu/Kconfig | 2 ++ arch/mips/Kconfig | 2 ++ arch/parisc/Kconfig | 2 ++ arch/powerpc/Kconfig | 2 ++ arch/ppc/Kconfig | 2 ++ arch/s390/Kconfig | 2 ++ arch/sh/Kconfig | 2 ++ arch/sh64/Kconfig | 2 ++ arch/sparc/Kconfig | 2 ++ arch/sparc64/Kconfig | 2 ++ arch/um/Kconfig | 2 ++ arch/v850/Kconfig | 2 ++ arch/x86_64/Kconfig | 2 ++ arch/xtensa/Kconfig | 2 ++ async_tx/Kconfig | 27 +++++++++++++++++++++++++++ drivers/md/Kconfig | 3 +++ 28 files changed, 81 insertions(+), 0 deletions(-) diff --git a/arch/alpha/Kconfig b/arch/alpha/Kconfig index 770f717..1fb0075 100644 --- a/arch/alpha/Kconfig +++ b/arch/alpha/Kconfig @@ -650,3 +650,4 @@ source "crypto/Kconfig" source "lib/Kconfig" +source "async_tx/Kconfig" diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 1f2809c..dd49b2a 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -1048,3 +1048,5 @@ source "security/Kconfig" source "crypto/Kconfig" source "lib/Kconfig" + +source "async_tx/Kconfig" diff --git a/arch/arm26/Kconfig b/arch/arm26/Kconfig index 20688bc..bc8b99d 100644 --- a/arch/arm26/Kconfig +++ b/arch/arm26/Kconfig @@ -248,3 +248,5 @@ source "security/Kconfig" source "crypto/Kconfig" source "lib/Kconfig" + +source "async_tx/Kconfig" diff --git a/arch/avr32/Kconfig b/arch/avr32/Kconfig index 3ec7658..5f16cc6 100644 --- a/arch/avr32/Kconfig +++ b/arch/avr32/Kconfig @@ -213,3 +213,5 @@ source "security/Kconfig" source "crypto/Kconfig" source "lib/Kconfig" + +source "async_tx/Kconfig" diff --git a/arch/blackfin/Kconfig b/arch/blackfin/Kconfig index 1a49305..648043a 100644 --- a/arch/blackfin/Kconfig +++ b/arch/blackfin/Kconfig @@ -987,3 +987,5 @@ source "security/Kconfig" source "crypto/Kconfig" source "lib/Kconfig" + +source "async_tx/Kconfig" diff --git a/arch/cris/Kconfig b/arch/cris/Kconfig index 4b41248..f902242 100644 --- a/arch/cris/Kconfig +++ b/arch/cris/Kconfig @@ -205,3 +205,5 @@ source "security/Kconfig" source "crypto/Kconfig" source "lib/Kconfig" + +source "async_tx/Kconfig" diff --git a/arch/frv/Kconfig b/arch/frv/Kconfig index 114738a..6aa888b 100644 --- a/arch/frv/Kconfig +++ b/arch/frv/Kconfig @@ -390,3 +390,5 @@ source "security/Kconfig" source "crypto/Kconfig" source "lib/Kconfig" + +source "async_tx/Kconfig" diff --git a/arch/h8300/Kconfig b/arch/h8300/Kconfig index 618dbad..95e33df 100644 --- a/arch/h8300/Kconfig +++ b/arch/h8300/Kconfig @@ -227,3 +227,5 @@ source "security/Kconfig" source "crypto/Kconfig" source "lib/Kconfig" + +source "async_tx/Kconfig" diff --git a/arch/i386/Kconfig b/arch/i386/Kconfig index c2d54b8..2776164 100644 --- a/arch/i386/Kconfig +++ b/arch/i386/Kconfig @@ -1236,6 +1236,8 @@ source "crypto/Kconfig" source "lib/Kconfig" +source "async_tx/Kconfig" + # # Use the generic interrupt handling code in kernel/irq/: # diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig index de1bff6..929e59b 100644 --- a/arch/ia64/Kconfig +++ b/arch/ia64/Kconfig @@ -552,6 +552,8 @@ source "fs/Kconfig" source "lib/Kconfig" +source "async_tx/Kconfig" + # # Use the generic interrupt handling code in kernel/irq/: # diff --git a/arch/m32r/Kconfig b/arch/m32r/Kconfig index c3bb8a7..35c6c08 100644 --- a/arch/m32r/Kconfig +++ b/arch/m32r/Kconfig @@ -412,3 +412,5 @@ source "security/Kconfig" source "crypto/Kconfig" source "lib/Kconfig" + +source "async_tx/Kconfig" diff --git a/arch/m68k/Kconfig b/arch/m68k/Kconfig index b8536c7..1421427 100644 --- a/arch/m68k/Kconfig +++ b/arch/m68k/Kconfig @@ -677,3 +677,5 @@ source "security/Kconfig" source "crypto/Kconfig" source "lib/Kconfig" + +source "async_tx/Kconfig" diff --git a/arch/m68knommu/Kconfig b/arch/m68knommu/Kconfig index 823f737..9cf83cf 100644 --- a/arch/m68knommu/Kconfig +++ b/arch/m68knommu/Kconfig @@ -683,3 +683,5 @@ source "security/Kconfig" source "crypto/Kconfig" source "lib/Kconfig" + +source "async_tx/Kconfig" diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig index 0f09412..581040c 100644 --- a/arch/mips/Kconfig +++ b/arch/mips/Kconfig @@ -1963,3 +1963,5 @@ source "security/Kconfig" source "crypto/Kconfig" source "lib/Kconfig" + +source "async_tx/Kconfig" diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig index 3d73545..afc4bad 100644 --- a/arch/parisc/Kconfig +++ b/arch/parisc/Kconfig @@ -276,3 +276,5 @@ source "security/Kconfig" source "crypto/Kconfig" source "lib/Kconfig" + +source "async_tx/Kconfig" diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig index 56d3c0d..65f6c55 100644 --- a/arch/powerpc/Kconfig +++ b/arch/powerpc/Kconfig @@ -887,6 +887,8 @@ source "arch/powerpc/sysdev/qe_lib/Kconfig" source "lib/Kconfig" +source "async_tx/Kconfig" + menu "Instrumentation Support" depends on EXPERIMENTAL diff --git a/arch/ppc/Kconfig b/arch/ppc/Kconfig index ccce2a4..e249d9a 100644 --- a/arch/ppc/Kconfig +++ b/arch/ppc/Kconfig @@ -1458,3 +1458,5 @@ source "arch/ppc/Kconfig.debug" source "security/Kconfig" source "crypto/Kconfig" + +source "async_tx/Kconfig" diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig index 098c62c..25d86af 100644 --- a/arch/s390/Kconfig +++ b/arch/s390/Kconfig @@ -556,3 +556,5 @@ source "security/Kconfig" source "crypto/Kconfig" source "lib/Kconfig" + +source "async_tx/Kconfig" diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig index 038179e..6f99b0e 100644 --- a/arch/sh/Kconfig +++ b/arch/sh/Kconfig @@ -728,3 +728,5 @@ source "security/Kconfig" source "crypto/Kconfig" source "lib/Kconfig" + +source "async_tx/Kconfig" diff --git a/arch/sh64/Kconfig b/arch/sh64/Kconfig index ff65420..32f032a 100644 --- a/arch/sh64/Kconfig +++ b/arch/sh64/Kconfig @@ -292,6 +292,8 @@ source "crypto/Kconfig" source "lib/Kconfig" +source "async_tx/Kconfig" + # # Use the generic interrupt handling code in kernel/irq/: # diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig index bd992c0..a782692 100644 --- a/arch/sparc/Kconfig +++ b/arch/sparc/Kconfig @@ -315,3 +315,5 @@ source "security/Kconfig" source "crypto/Kconfig" source "lib/Kconfig" + +source "async_tx/Kconfig" diff --git a/arch/sparc64/Kconfig b/arch/sparc64/Kconfig index 831781c..16a9175 100644 --- a/arch/sparc64/Kconfig +++ b/arch/sparc64/Kconfig @@ -447,3 +447,5 @@ source "security/Kconfig" source "crypto/Kconfig" source "lib/Kconfig" + +source "async_tx/Kconfig" diff --git a/arch/um/Kconfig b/arch/um/Kconfig index c504312..220d7de 100644 --- a/arch/um/Kconfig +++ b/arch/um/Kconfig @@ -325,6 +325,8 @@ source "drivers/scsi/Kconfig" source "drivers/md/Kconfig" +source "async_tx/Kconfig" + if BROKEN source "drivers/mtd/Kconfig" endif diff --git a/arch/v850/Kconfig b/arch/v850/Kconfig index 5f54c12..bdee041 100644 --- a/arch/v850/Kconfig +++ b/arch/v850/Kconfig @@ -347,4 +347,6 @@ source "crypto/Kconfig" source "lib/Kconfig" +source "async_tx/Kconfig" + ######################################################################## ##### diff --git a/arch/x86_64/Kconfig b/arch/x86_64/Kconfig index 145bb82..2b8b637 100644 --- a/arch/x86_64/Kconfig +++ b/arch/x86_64/Kconfig @@ -784,3 +784,5 @@ source "security/Kconfig" source "crypto/Kconfig" source "lib/Kconfig" + +source "async_tx/Kconfig" diff --git a/arch/xtensa/Kconfig b/arch/xtensa/Kconfig index 7fbb44b..b18d15f 100644 --- a/arch/xtensa/Kconfig +++ b/arch/xtensa/Kconfig @@ -259,4 +259,6 @@ source "crypto/Kconfig" source "lib/Kconfig" +source "async_tx/Kconfig" + diff --git a/async_tx/Kconfig b/async_tx/Kconfig new file mode 100644 index 0000000..4a6801e --- /dev/null +++ b/async_tx/Kconfig @@ -0,0 +1,27 @@ +menuconfig ASYNC_CORE + tristate "Asynchronous Bulk Memory Transfers/Transforms" + default n + ---help--- + This enables the async_tx interface layer for dma (offload) engines. + Subsystems coded to this api will use offload engines for bulk memory + operations (e.g. memcpy, memset, xor...). When an offload engine is not + available the interface will implicitly fall back to a software + implementation of the operation. + + If unsure, say N + +if ASYNC_CORE + +config ASYNC_MEMCPY + default m + tristate "async_memcpy support" + +config ASYNC_XOR + default m + tristate "async_xor support" + +config ASYNC_MEMSET + default m + tristate "async_memset support" + +endif diff --git a/drivers/md/Kconfig b/drivers/md/Kconfig index 7df934d..9fa1555 100644 --- a/drivers/md/Kconfig +++ b/drivers/md/Kconfig @@ -109,6 +109,9 @@ config MD_RAID10 config MD_RAID456 tristate "RAID-4/RAID-5/RAID-6 mode" depends on BLK_DEV_MD + select ASYNC_CORE + select ASYNC_MEMCPY + select ASYNC_XOR ---help--- A RAID-5 set of N drives with a capacity of C MB per drive provides the capacity of C * (N - 1) MB, and protects against a failure - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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