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by Prasanth Nair

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2 years, 5 months

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Test email please ignore

by Prasanth S Nair

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2 years, 5 months

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acc@lists.linaro.org Password Expiry Notice!

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2 years, 5 months

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Fwd: S390 testing for IOMMUFD

by Zhangfei Gao

-------- Forwarded Message -------- Subject: S390 testing for IOMMUFD Date: Mon, 7 Nov 2022 21:09:02 -0400 From: Jason Gunthorpe <jgg(a)nvidia.com> To: Cornelia Huck <cohuck(a)redhat.com>, Eric Farman <farman(a)linux.ibm.com>, Matthew Rosato <mjrosato(a)linux.ibm.com>, Niklas Schnelle <schnelle(a)linux.ibm.com>, Tony Krowiak <akrowiak(a)linux.ibm.com>, Halil Pasic <pasic(a)linux.ibm.com>, Jason Herne <jjherne(a)linux.ibm.com>, linux-s390(a)vger.kernel.org CC: iommu(a)lists.linux.dev, Kevin Tian <kevin.tian(a)intel.com>, Alex Williamson <alex.williamson(a)redhat.com>, kvm(a)vger.kernel.org, Lu Baolu <baolu.lu(a)linux.intel.com>, Nicolin Chen <nicolinc(a)nvidia.com> On Mon, Nov 07, 2022 at 08:48:53PM -0400, Jason Gunthorpe wrote: > [ > This has been in linux-next for a little while now, and we've completed > the syzkaller run. 1300 hours of CPU time have been invested since the > last report with no improvement in coverage or new detections. syzkaller > coverage reached 69%(75%), and review of the misses show substantial > amounts are WARN_ON's and other debugging which are not expected to be > covered. > ] > > iommufd is the user API to control the IOMMU subsystem as it relates to > managing IO page tables that point at user space memory. [chop cc list] s390 mdev maintainers, Can I ask your help to test this with the two S390 mdev drivers? Now that gvt is passing and we've covered alot of the QA ground it is a good time to run it. Take the branch from here: https://git.kernel.org/pub/scm/linux/kernel/git/jgg/iommufd.git/log/?h=for-… And build the kernel with CONFIG_VFIO_CONTAINER=n CONFIG_IOMMUFD=y CONFIG_IOMMUFD_VFIO_CONTAINER=y And your existing stuff should work with iommufd providing the iommu support to vfio. There will be a dmesg confirming this. Let me know if there are any problems! If I recall there was some desire from the S390 platform team to start building on iommufd to create some vIOMMU acceleration for S390 guests, this is a necessary first step. Thanks, Jason

2 years, 5 months

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[PATCH] dh: cleanup redundant macro definition

by Zhiqi Song

Remove duplicated definition of CTX_MODE_NUM. Signed-off-by: Zhiqi Song <songzhiqi1(a)huawei.com> --- src/uadk_dh.c | 1 - 1 file changed, 1 deletion(-) diff --git a/src/uadk_dh.c b/src/uadk_dh.c index 6065160..a14d215 100644 --- a/src/uadk_dh.c +++ b/src/uadk_dh.c @@ -39,7 +39,6 @@ #define CHAR_BIT_SIZE 3 #define DH_PARAMS_CNT 3 #define CTX_MODE_NUM 2 -#define CTX_MODE_NUM 2 #define UN_SET 0 #define IS_SET 1 #define CTX_ASYNC 1 -- 2.30.0

2 years, 5 months

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[PATCH v7 0/6] add dynamic driver loading function

by Longfang Liu

Update the current driver adaptation and usage method, from fixed use of Hisilicon device driver to automatic registration of the driver according to the algorithm. When the algorithm API layer uses the driver, it is no longer bound to the fixed device driver, but dynamically obtained and stored according to the algorithm query to use. Update the driver and API layer of the zip and sec module, keep the function of the init interface unchanged, update the implementation of the init2 interface and match the dynamic loading function. Changes v6 -> v7: - Added dynamically loaded design documents. Changes v5 -> v6: - Rebase based on the patch of the zlib interface. Changes v4 -> v5: - Enhance the inclusiveness of the init2 interface. Changes v3 -> v4: - Remove the template instance code of cipher. - Split the scheduler code into a separate patch. Changes v2 -> v3: - Add dynamic library file search function - Fix some memory handling issues Changes v1 -> v2: - Fixed the compatibility method with the previous library file loading Longfang Liu (6): uadk: Add driver dynamic loading function uadk: update scheduler for dynamic loading uadk: improve the dynamic loading public framework uadk/doc: adding dynamically loaded design documents uadk: added ability to query supported algorithms uadk/zip: Adapt the zip module to the dynamic loading framework Makefile.am | 4 +- ...sion_and_modular_dynamic_loading_design.md | 432 ++++++++++++++ drv/hisi_comp.c | 59 +- include/drv/wd_comp_drv.h | 27 - include/wd.h | 12 + include/wd_alg.h | 95 +++ include/wd_alg_common.h | 11 + include/wd_sched.h | 6 +- include/wd_util.h | 63 +- libwd.map | 8 + wd.c | 56 +- wd_alg.c | 265 +++++++++ wd_comp.c | 243 ++++---- wd_sched.c | 105 +++- wd_util.c | 549 +++++++++++++++++- 15 files changed, 1769 insertions(+), 166 deletions(-) create mode 100644 docs/UADK_framework_expansion_and_modular_dynamic_loading_design.md create mode 100644 include/wd_alg.h create mode 100644 wd_alg.c -- 2.33.0

2 years, 6 months

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[PATCH v6 0/5] add dynamic driver loading function

by Longfang Liu

Update the current driver adaptation and usage method, from fixed use of Hisilicon device driver to automatic registration of the driver according to the algorithm. When the algorithm API layer uses the driver, it is no longer bound to the fixed device driver, but dynamically obtained and stored according to the algorithm query to use. Update the driver and API layer of the zip and sec module, keep the function of the init interface unchanged, update the implementation of the init2 interface and match the dynamic loading function. Changes v5 -> v6: - Rebase based on the patch of the zlib interface. Changes v4 -> v5: - Enhance the inclusiveness of the init2 interface. Changes v3 -> v4: - Remove the template instance code of cipher. - Split the scheduler code into a separate patch. Changes v2 -> v3: - Add dynamic library file search function - Fix some memory handling issues Changes v1 -> v2: - Fixed the compatibility method with the previous library file loading Longfang Liu (5): uadk: Add driver dynamic loading function uadk: update scheduler for dynamic loading uadk: improve the dynamic loading public framework uadk: added ability to query supported algorithms uadk/zip: Adapt the zip module to the dynamic loading framework Makefile.am | 4 +- drv/hisi_comp.c | 59 +++- include/drv/wd_comp_drv.h | 27 -- include/wd.h | 12 + include/wd_alg.h | 95 +++++++ include/wd_alg_common.h | 11 + include/wd_sched.h | 6 +- include/wd_util.h | 63 ++++- libwd.map | 8 + wd.c | 56 +++- wd_alg.c | 265 ++++++++++++++++++ wd_comp.c | 243 +++++++++-------- wd_sched.c | 105 +++++++- wd_util.c | 549 +++++++++++++++++++++++++++++++++++++- 14 files changed, 1337 insertions(+), 166 deletions(-) create mode 100644 include/wd_alg.h create mode 100644 wd_alg.c -- 2.33.0

2 years, 6 months

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[PATCH 0/2] uadk: update cipher function

by Longfang Liu

In order to simplify the calling logic of uadk, a new init2 interface is added to the cipher algorithm class, which includes hardware device resource initialization and scheduler initialization. Longfang Liu (2): uadk/cipher: add the init2 interface for cipher uadk/sec: adapt the sec module to the dynamic loading framework drv/hisi_sec.c | 102 ++++++++++-- include/drv/wd_aead_drv.h | 2 +- include/drv/wd_cipher_drv.h | 26 --- include/drv/wd_digest_drv.h | 2 +- include/wd_cipher.h | 29 ++++ libwd_crypto.map | 3 + wd_cipher.c | 305 +++++++++++++++++++++++++++--------- 7 files changed, 354 insertions(+), 115 deletions(-) -- 2.33.0

2 years, 7 months

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[PATCH v5 0/5] add dynamic driver loading function

by Longfang Liu

Update the current driver adaptation and usage method, from fixed use of Hisilicon device driver to automatic registration of the driver according to the algorithm. When the algorithm API layer uses the driver, it is no longer bound to the fixed device driver, but dynamically obtained and stored according to the algorithm query to use. Update the driver and API layer of the zip and sec module, keep the function of the init interface unchanged, update the implementation of the init2 interface and match the dynamic loading function. Changes v4 -> v5: - Enhance the inclusiveness of the init2 interface. Changes v3 -> v4: - Remove the template instance code of cipher. - Split the scheduler code into a separate patch. Changes v2 -> v3: - Add dynamic library file search function - Fix some memory handling issues Changes v1 -> v2: - Fixed the compatibility method with the previous library file loading Longfang Liu (5): uadk: Add driver dynamic loading function uadk: update scheduler for dynamic loading uadk: improve the dynamic loading public framework uadk: added ability to query supported algorithms uadk/zip: Adapt the zip module to the dynamic loading framework Makefile.am | 4 +- drv/hisi_comp.c | 59 +++- include/drv/wd_comp_drv.h | 27 -- include/wd.h | 12 + include/wd_alg.h | 95 +++++++ include/wd_alg_common.h | 11 + include/wd_sched.h | 6 +- include/wd_util.h | 63 ++++- libwd.map | 8 + wd.c | 56 +++- wd_alg.c | 265 ++++++++++++++++++ wd_comp.c | 293 +++++++++++--------- wd_sched.c | 105 +++++++- wd_util.c | 549 +++++++++++++++++++++++++++++++++++++- 14 files changed, 1374 insertions(+), 179 deletions(-) create mode 100644 include/wd_alg.h create mode 100644 wd_alg.c -- 2.33.0

2 years, 7 months

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Fw:Re: [Linaro-open-discussions] Re: Linaro-open-discussions Digest, Vol 25, Issue 3

by Zhangfei Gao

  ------------------ Original ------------------ From: "Lorenzo Pieralisi" <lorenzo.pieralisi(a)linaro.org>gt;; Date: Sat, Dec 17, 2022 00:14 AM To: "Zhangfei Gao"<zhangfei.gao(a)linaro.org>gt;; Cc: "Joyce Qi"<joyce.qi(a)linaro.org>gt;;"jean-philippe"<jean-philippe(a)linaro.org>gt;;"linaro-open-discussions"<linaro-open-discussions(a)op-lists.linaro.org>gt;;"linux"<linux(a)armlinux.org.uk>gt;; Subject: Re: [Linaro-open-discussions] Re: Linaro-open-discussions Digest, Vol 25, Issue 3 On Thu, Oct 27, 2022 at 12:06:59PM +0800, Zhangfei Gao wrote: > Hi, Lorenzo > > When we debug vsva, sva on guest with 2-stage translation, > we found tlb miss impact performance a lot, with Jean's help. > > Currently we are using huge page feature in glibc to overcome this issue. > With huge page, vsva in guest can achieve comparable performance as sva in > host. > > More details: https://docs.qq.com/doc/DRXlpQmpTSlBZTGZZ > Will do some > > Basically we are using two optimization methods/ > host sva: using memset fist to overcome io page fault, since cpu alloc > physical memory is much faster than smmu. > guest vsva: using huge page to overcome tlbmiss. > > The customer are asking whether (next version) silicon (smmu) can do some > help to concur tlb miss issue or io page fault issue. I can bring this up with the SMMU architect - thank you for taking time to describe the use cases and SW you are deploying. > If so, software can be simpler. > Any suggestions? Talking to SMMU architects - there is not much SW can do other than what you are doing already. Thanks, Lorenzo > Thanks > > > On 2022/10/20 下午8:47, Joyce Qi via Linaro-open-discussions wrote: > > Hi Jonathan,Lorenzo,all, > > > > Do we have any topic to sync on our LOD meeting next week? > > > > Thanks:) > > Joyce > > > > > > > 

2 years, 7 months

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