March 2022 - Linuxarm - mailweb.openeuler.org

[RFCv5 PATCH net-next 00/20] net: extend the type of netdev_features_t to bitmap
by Jian Shen 16 Apr '22

16 Apr '22

For the prototype of netdev_features_t is u64, and the number of netdevice feature bits is 64 now. So there is no space to introduce new feature bit. This patchset try to solve it by change the prototype of netdev_features_t from u64 to structure below: typedef struct { DECLARE_BITMAP(bits, NETDEV_FEATURE_COUNT); } netdev_features_t; With this change, it's necessary to introduce a set of bitmap operation helpers for netdev features. As the nic drivers are not supposed to modify netdev_features directly, it also introduces wrappers helpers to this. [patch 20] There are a set of helpes named as "netdev_features_xxx", and I want to add similar helpers for netdev features members, named as netdev_XXX_features_xxx.(xxx: and/or/xor.., XXX: hw/vlan/mpls...) To make the helpers name differentiable, rename netdev->features to netdev->active_features. [patch 2] For example: #define netdev_active_features_set_bit(ndev, nr) \ netdev_features_set_bit(nr, &ndev->active_features) To avoid mistake using NETIF_F_XXX as NETIF_F_XXX_BIT as input macroes for above helpers, remove all the macroes of NETIF_F_XXX. [patch 20] The features group macroes in netdev_features.h are replaced by a set of const features defined in netdev_features.c. [patch 3-4] For example: macro NETIF_F_ALL_TSO is replaced by netdev_all_tso_features There are some drivers(e.g. sfc) use netdev_features in global structure initialization. Changed the its netdev_features_t memeber to netdev_features_t *, and make it prefer to a netdev_features_t global variables. [patch 5] As suggestion from Andrew Lunn, I wrote some semantic patches to do the work(replacing the netdev features operator by helpers). [patch 8-19] To make the semantic patches simple, I split the complex opreation of netdev_features to simple logical operation. [patch 6, 7] With the prototype is no longer u64, the implementation of print interface for netdev features(%pNF) is changed to bitmap. [patch 20] The whole work is not complete yet. I just use these changes on several files(hns3 driver, sfc drivers, net/ethtool, net/core/dev.c), in order to show how these helpers will be used. I want to get more suggestions for this scheme, any comments would be appreciated. The former discussion please see [1][2][3]. [1]:https://www.spinics.net/lists/netdev/msg769952.html [2]:https://www.spinics.net/lists/netdev/msg777764.html [3]:https://lore.kernel.org/netdev/20211107101519.29264-1-shenjian15@huawei.… ChangeLog: V4->V5: adjust the patch structure, use semantic patch with coccinelle V3->V4: rename netdev->features to netdev->active_features remove helpes for handle first 64 bits remove __NETIF_F(name) macroes replace features group macroes with const features V2->V3: use structure for bitmap, suggest by Edward Cree V1->V2: Extend the prototype from u64 to bitmap, suggest by Andrew Lunn Jian Shen (20): net: rename net_device->features to net_device->active_features net: introduce operation helpers for netdev features net: replace general features macroes with global netdev_features variables net: replace multiple feature bits with netdev features array net: sfc: replace const features initialization with netdev features array net: simplify the netdev features expression net: adjust variables definition for netdev_features_t net: use netdev_features_set_bit helpers net: use netdev_features_or helpers net: use netdev_features_xor helpers net: use netdev_features_clear_bit helpers net: use netdev_features_andnot helpers net: use netdev_features_test_bit helpers net: use netdev_features_intersects helpers net: use netdev_features_and helpers net: use netdev_features_subset helpers net: use netdev_features_equal helpers net: use netdev_set_xxx_features helpers net: use netdev_xxx_features helpers net: redefine the prototype of netdev_features_t .../net/ethernet/hisilicon/hns3/hns3_enet.c | 116 ++- .../ethernet/hisilicon/hns3/hns3_ethtool.c | 4 +- drivers/net/ethernet/sfc/ef10.c | 43 +- drivers/net/ethernet/sfc/ef100_nic.c | 57 +- drivers/net/ethernet/sfc/ef100_rx.c | 4 +- drivers/net/ethernet/sfc/ef100_tx.c | 8 +- drivers/net/ethernet/sfc/ef10_sriov.c | 6 +- drivers/net/ethernet/sfc/efx.c | 96 ++- drivers/net/ethernet/sfc/efx_common.c | 32 +- drivers/net/ethernet/sfc/falcon/efx.c | 75 +- drivers/net/ethernet/sfc/falcon/efx.h | 3 + drivers/net/ethernet/sfc/falcon/falcon.c | 4 +- drivers/net/ethernet/sfc/falcon/net_driver.h | 4 +- drivers/net/ethernet/sfc/falcon/rx.c | 4 +- drivers/net/ethernet/sfc/farch.c | 2 +- drivers/net/ethernet/sfc/mcdi_filters.c | 13 +- drivers/net/ethernet/sfc/mcdi_port_common.c | 2 +- drivers/net/ethernet/sfc/net_driver.h | 4 +- drivers/net/ethernet/sfc/rx.c | 2 +- drivers/net/ethernet/sfc/rx_common.c | 5 +- drivers/net/ethernet/sfc/rx_common.h | 4 + drivers/net/ethernet/sfc/siena.c | 3 +- include/linux/netdev_features.h | 189 ++--- include/linux/netdevice.h | 722 +++++++++++++++++- lib/vsprintf.c | 11 +- net/core/dev.c | 419 ++++++---- net/core/netdev_features.c | 276 +++++++ net/ethtool/features.c | 77 +- net/ethtool/ioctl.c | 140 ++-- 29 files changed, 1797 insertions(+), 528 deletions(-) create mode 100644 net/core/netdev_features.c -- 2.33.0

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[PATCH 0/4] rasdaemon: Some little fixes and add some modules support
by Xiaofei Tan 01 Apr '22

01 Apr '22

Some little fixes and add some modules support for kunpeng series. Xiaofei Tan (4): rasdaemon: Fix the issue of sprintf data type mismatch in uuid_le() rasdaemon: Fix the issue of command option -r for hip08 rasdaemon: Fix some print format issues for hisi common error section rasdaemon: Add some modules supported by hisi common error section non-standard-hisi_hip08.c | 6 +++--- non-standard-hisilicon.c | 32 +++++++++++++++++++++----------- ras-extlog-handler.c | 2 +- ras-non-standard-handler.c | 4 ++-- 4 files changed, 27 insertions(+), 17 deletions(-) -- 2.33.0

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information about Email Marketing - id= 202232875729
by ISA Email Marketing 28 Mar '22

28 Mar '22

Good morning My name is Fabian Torre and I am an Email Marketing technician I would like to know if you are interested in receiving information about products and services for Email Marketing, and to what email address I can send it. Thanks a lot Whatsapp: +55 719 9204-2292 Skype: chronskype

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Koszty instalacji fotowoltaicznej
by "Arkadiusz Sokołowski" 28 Mar '22

28 Mar '22

Dzień dobry, stworzyliśmy specjalną ofertę dla firm, na kompleksową obsługę inwestycji w fotowoltaikę. Specjalizujemy się w zakresie doboru, montażu i serwisie instalacji fotowoltaicznych, dysponujemy najnowocześniejszymi rozwiązania, które zapewnią Państwu oczekiwane rezultaty. Możemy przygotować dla Państwa wstępną kalkulację i przeanalizować efekty możliwe do osiągnięcia. Czy są Państwo otwarci na wstępną rozmowę w tym temacie? Pozdrawiam Arkadiusz Sokołowski

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[PATCH net-next v2 0/4] add frag page support in page pool
by Yunsheng Lin 25 Mar '22

25 Mar '22

This patchset adds frag page support in page pool and enable skb's page frag recycling based on page pool in hns3 drvier. V2: 1. resend based on the latest net-next. V1: 1. avoid atomic_long_read() in case of freeing or draining page frag, and drop RFC tag. RFC v6: 1. Disable frag page support in system 32-bit arch and 64-bit DMA. RFC v5: 1. Rename dma_addr[0] to pp_frag_count and adjust codes according to the rename. RFC v4: 1. Use the dma_addr[1] to store bias. 2. Default to a pagecnt_bias of PAGE_SIZE - 1. 3. other minor comment suggested by Alexander. RFC v3: 1. Implement the semantic of "page recycling only wait for the page pool user instead of all user of a page" 2. Support the frag allocation of different sizes 3. Merge patch 4 & 5 to one patch as it does not make sense to use page_pool_dev_alloc_pages() API directly with elevated refcnt. 4. other minor comment suggested by Alexander. RFC v2: 1. Split patch 1 to more reviewable one. 2. Repurpose the lower 12 bits of the dma address to store the pagecnt_bias as suggested by Alexander. 3. support recycling to pool->alloc for elevated refcnt case too. Yunsheng Lin (4): page_pool: keep pp info as long as page pool owns the page page_pool: add interface to manipulate frag count in page pool page_pool: add frag page recycling support in page pool net: hns3: support skb's frag page recycling based on page pool drivers/net/ethernet/hisilicon/Kconfig | 1 + drivers/net/ethernet/hisilicon/hns3/hns3_enet.c | 79 +++++++++++++++-- drivers/net/ethernet/hisilicon/hns3/hns3_enet.h | 3 + drivers/net/ethernet/marvell/mvneta.c | 6 +- drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c | 2 +- drivers/net/ethernet/ti/cpsw.c | 2 +- drivers/net/ethernet/ti/cpsw_new.c | 2 +- include/linux/mm_types.h | 18 ++-- include/linux/skbuff.h | 4 +- include/net/page_pool.h | 68 +++++++++++--- net/core/page_pool.c | 112 +++++++++++++++++++++++- 11 files changed, 258 insertions(+), 39 deletions(-) -- 2.7.4

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Wycena paneli fotowoltaicznych
by Norbert Karecki 18 Mar '22

18 Mar '22

Dzień dobry, dostrzegam możliwość współpracy z Państwa firmą. Świadczymy kompleksową obsługę inwestycji w fotowoltaikę, która obniża koszty energii elektrycznej nawet o 90%. Czy są Państwo zainteresowani weryfikacją wstępnych propozycji? Pozdrawiam Norbert Karecki

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Re: Mutual Investment Proposal
by Luis Fernandez 15 Mar '22

15 Mar '22

Good Day, My name is Luis Fernandez, I am contacting you because we have investors that have the capacity to invest in any massive project in your country or invest in your existing project that requires funding.Kindly get back to me for more details. Regards Luis Fernandez

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FROM MRS ROSE RAYA
by Mrs.Rose Raya 13 Mar '22

13 Mar '22

My name is Mrs.Rose Raya.from Indonesia, I know that this message might come to you as a surprise because we don't know each other nor have we ever met before but accept it with an open and positive mind. I have a Very important request that made me to contact you; I was diagnosed with ovarian cancer disease which doctors have confirmed and announced to me that i have just few days to leave, Now that I’m ending the race like this, without any family members and no child, I just came across your email contact from my personal search. I’m a business woman from Indonesia dealing with gold exportation here in the Republic of Burkina Faso. I have decided to hand over the sum of ($10.5 Million Dollar) in my account to you for the help of orphanage homes/the needy once in your location to fulfill my wish on earth. But before handing over my data’s to you, kindly assure me that you will take only 50% of the money and share the rest to orphanage homes/the needy once in your country, Return to enable me forward to you the bank contact details now that I have access to Internet in the hospital to enable you contact the bank, always check your email and reply in time for better communications. PLEASE REPLY ME WITH THE ANSWERS TO THOSE QUESTIONS BELOW FOR MY CONFIRMATION SO THAT I CAN GIVE YOU THE EMAIL ADDRESS OF THE BANK FOR YOU TO CONTACT THEM. 1. FULL NAME: 2. YOUR AGE: 3. SEX: 4. NATIONALITY: 5. COUNTRY OF RESIDENCE: 6. TELEPHONE NUMBER: 7. YOUR MARITAL STATUS: 8. YOUR OCCUPATION: 9. SEND TO ME YOUR PICTURE: 10. YOU HAVE TO ASSURE ME YOU WILL ACT AS I HAVE INSTRUCTED YOU IF THE MONEY GETS TO YOUR BANK ACCOUNT. Your early response will be appreciated. Yours Faithfully, Mrs.Rose Raya.

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[PATCH v2] dma-mapping: benchmark: Extract a common header file for map_benchmark definition
by Tian Tao 10 Mar '22

10 Mar '22

kernel/dma/map_benchmark.c and selftests/dma/dma_map_benchmark.c have duplicate map_benchmark definitions, which tends to lead to inconsistent changes to map_benchmark on both sides, extract a common header file to avoid this problem. Signed-off-by: Tian Tao <tiantao6(a)hisilicon.com> Acked-by: Barry Song <song.bao.hua(a)hisilicon.com> Reviewed-by: Shuah Khan <skhan(a)linuxfoundation.org> --- v2: move map_benchmark.h in a more appropriate directory --- include/linux/map_benchmark.h | 31 +++++++++++++++++++ kernel/dma/map_benchmark.c | 25 +-------------- .../testing/selftests/dma/dma_map_benchmark.c | 25 +-------------- 3 files changed, 33 insertions(+), 48 deletions(-) create mode 100644 include/linux/map_benchmark.h diff --git a/include/linux/map_benchmark.h b/include/linux/map_benchmark.h new file mode 100644 index 000000000000..62674c83bde4 --- /dev/null +++ b/include/linux/map_benchmark.h @@ -0,0 +1,31 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Copyright (C) 2022 HiSilicon Limited. + */ + +#ifndef _KERNEL_DMA_BENCHMARK_H +#define _KERNEL_DMA_BENCHMARK_H + +#define DMA_MAP_BENCHMARK _IOWR('d', 1, struct map_benchmark) +#define DMA_MAP_MAX_THREADS 1024 +#define DMA_MAP_MAX_SECONDS 300 +#define DMA_MAP_MAX_TRANS_DELAY (10 * NSEC_PER_MSEC) + +#define DMA_MAP_BIDIRECTIONAL 0 +#define DMA_MAP_TO_DEVICE 1 +#define DMA_MAP_FROM_DEVICE 2 + +struct map_benchmark { + __u64 avg_map_100ns; /* average map latency in 100ns */ + __u64 map_stddev; /* standard deviation of map latency */ + __u64 avg_unmap_100ns; /* as above */ + __u64 unmap_stddev; + __u32 threads; /* how many threads will do map/unmap in parallel */ + __u32 seconds; /* how long the test will last */ + __s32 node; /* which numa node this benchmark will run on */ + __u32 dma_bits; /* DMA addressing capability */ + __u32 dma_dir; /* DMA data direction */ + __u32 dma_trans_ns; /* time for DMA transmission in ns */ + __u32 granule; /* how many PAGE_SIZE will do map/unmap once a time */ +}; +#endif /* _KERNEL_DMA_BENCHMARK_H */ diff --git a/kernel/dma/map_benchmark.c b/kernel/dma/map_benchmark.c index 9b9af1bd6be3..0520a8f4fb1d 100644 --- a/kernel/dma/map_benchmark.c +++ b/kernel/dma/map_benchmark.c @@ -11,6 +11,7 @@ #include <linux/dma-mapping.h> #include <linux/kernel.h> #include <linux/kthread.h> +#include <linux/map_benchmark.h> #include <linux/math64.h> #include <linux/module.h> #include <linux/pci.h> @@ -18,30 +19,6 @@ #include <linux/slab.h> #include <linux/timekeeping.h> -#define DMA_MAP_BENCHMARK _IOWR('d', 1, struct map_benchmark) -#define DMA_MAP_MAX_THREADS 1024 -#define DMA_MAP_MAX_SECONDS 300 -#define DMA_MAP_MAX_TRANS_DELAY (10 * NSEC_PER_MSEC) - -#define DMA_MAP_BIDIRECTIONAL 0 -#define DMA_MAP_TO_DEVICE 1 -#define DMA_MAP_FROM_DEVICE 2 - -struct map_benchmark { - __u64 avg_map_100ns; /* average map latency in 100ns */ - __u64 map_stddev; /* standard deviation of map latency */ - __u64 avg_unmap_100ns; /* as above */ - __u64 unmap_stddev; - __u32 threads; /* how many threads will do map/unmap in parallel */ - __u32 seconds; /* how long the test will last */ - __s32 node; /* which numa node this benchmark will run on */ - __u32 dma_bits; /* DMA addressing capability */ - __u32 dma_dir; /* DMA data direction */ - __u32 dma_trans_ns; /* time for DMA transmission in ns */ - __u32 granule; /* how many PAGE_SIZE will do map/unmap once a time */ - __u8 expansion[76]; /* For future use */ -}; - struct map_benchmark_data { struct map_benchmark bparam; struct device *dev; diff --git a/tools/testing/selftests/dma/dma_map_benchmark.c b/tools/testing/selftests/dma/dma_map_benchmark.c index 485dff51bad2..c3b3c09e995e 100644 --- a/tools/testing/selftests/dma/dma_map_benchmark.c +++ b/tools/testing/selftests/dma/dma_map_benchmark.c @@ -10,40 +10,17 @@ #include <unistd.h> #include <sys/ioctl.h> #include <sys/mman.h> +#include <linux/map_benchmark.h> #include <linux/types.h> #define NSEC_PER_MSEC 1000000L -#define DMA_MAP_BENCHMARK _IOWR('d', 1, struct map_benchmark) -#define DMA_MAP_MAX_THREADS 1024 -#define DMA_MAP_MAX_SECONDS 300 -#define DMA_MAP_MAX_TRANS_DELAY (10 * NSEC_PER_MSEC) - -#define DMA_MAP_BIDIRECTIONAL 0 -#define DMA_MAP_TO_DEVICE 1 -#define DMA_MAP_FROM_DEVICE 2 - static char *directions[] = { "BIDIRECTIONAL", "TO_DEVICE", "FROM_DEVICE", }; -struct map_benchmark { - __u64 avg_map_100ns; /* average map latency in 100ns */ - __u64 map_stddev; /* standard deviation of map latency */ - __u64 avg_unmap_100ns; /* as above */ - __u64 unmap_stddev; - __u32 threads; /* how many threads will do map/unmap in parallel */ - __u32 seconds; /* how long the test will last */ - __s32 node; /* which numa node this benchmark will run on */ - __u32 dma_bits; /* DMA addressing capability */ - __u32 dma_dir; /* DMA data direction */ - __u32 dma_trans_ns; /* time for DMA transmission in ns */ - __u32 granule; /* how many PAGE_SIZE will do map/unmap once a time */ - __u8 expansion[76]; /* For future use */ -}; - int main(int argc, char **argv) { struct map_benchmark map; -- 2.33.0

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【重要】えきねっとアカウントの自動退会処理について
by Ekinet 10 Mar '22

10 Mar '22

日頃より「えきねっと」をご利用いただきありがとうございます。「えきねっと」のアカウントは制限されています。通常の使用に影響を与えないように、下のリンクをクリックして関連情報をできるだけ早く確認してください。12時間以内に申し込みが届かない場合、アカウントは常にご不便をおかけして申し訳ございません。２年以上ログインしていないお客さまで、今後も「えきねっと」をご利用いただける場合は、2022 年 3 月 10 日(木)よりも前に、一度ログイン操作をお願いいたします。 ⇒ログインはこちら ※えきねっとトップページ右上のログインボタンよりログインしてください。お問い合わせ先えきねっとサポートセンター TEL 050-2016-5000 受付時間 8時00分～22時00分サイト運営・管理 JR東日本ネットステーション -------------------- このメールは「えきねっと」より自動配信されています。返信いただきましても対応致しかねますので、あらかじめご了承ください。お心当たりのない方は、誠に恐れ入りますがこのメールの削除をお願いいたします。ご不明な点のある方は、えきねっとサポートセンターまでご連絡ください。 Copyright © JR East Net Station Co.,Ltd. All Rights Reserved.

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Napływ Klientów ze strony
by "Mikołaj Rudzik" 09 Mar '22

09 Mar '22

Dzień dobry, chciałbym poinformować Państwa o możliwości pozyskania nowych zleceń ze strony www. Widzimy zainteresowanie potencjalnych Klientów Państwa firmą, dlatego chętnie pomożemy Państwu dotrzeć z ofertą do większego grona odbiorców poprzez efektywne metody pozycjonowania strony w Google. Czy mógłbym liczyć na kontakt zwrotny? Pozdrawiam Mikołaj Rudzik

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[RESEND] dma-mapping: benchmark: Extract a common header file for map_benchmark definition
by Tian Tao 08 Mar '22

08 Mar '22

kernel/dma/map_benchmark.c and selftests/dma/dma_map_benchmark.c have duplicate map_benchmark definitions, which tends to lead to inconsistent changes to map_benchmark on both sides, extract a common header file to avoid this problem. Signed-off-by: Tian Tao <tiantao6(a)hisilicon.com> Acked-by: Barry Song <song.bao.hua(a)hisilicon.com> Reviewed-by: Shuah Khan <skhan(a)linuxfoundation.org> --- kernel/dma/map_benchmark.c | 24 +------------- kernel/dma/map_benchmark.h | 31 +++++++++++++++++++ .../testing/selftests/dma/dma_map_benchmark.c | 25 +-------------- 3 files changed, 33 insertions(+), 47 deletions(-) create mode 100644 kernel/dma/map_benchmark.h diff --git a/kernel/dma/map_benchmark.c b/kernel/dma/map_benchmark.c index 9b9af1bd6be3..c05f4e242991 100644 --- a/kernel/dma/map_benchmark.c +++ b/kernel/dma/map_benchmark.c @@ -18,29 +18,7 @@ #include <linux/slab.h> #include <linux/timekeeping.h> -#define DMA_MAP_BENCHMARK _IOWR('d', 1, struct map_benchmark) -#define DMA_MAP_MAX_THREADS 1024 -#define DMA_MAP_MAX_SECONDS 300 -#define DMA_MAP_MAX_TRANS_DELAY (10 * NSEC_PER_MSEC) - -#define DMA_MAP_BIDIRECTIONAL 0 -#define DMA_MAP_TO_DEVICE 1 -#define DMA_MAP_FROM_DEVICE 2 - -struct map_benchmark { - __u64 avg_map_100ns; /* average map latency in 100ns */ - __u64 map_stddev; /* standard deviation of map latency */ - __u64 avg_unmap_100ns; /* as above */ - __u64 unmap_stddev; - __u32 threads; /* how many threads will do map/unmap in parallel */ - __u32 seconds; /* how long the test will last */ - __s32 node; /* which numa node this benchmark will run on */ - __u32 dma_bits; /* DMA addressing capability */ - __u32 dma_dir; /* DMA data direction */ - __u32 dma_trans_ns; /* time for DMA transmission in ns */ - __u32 granule; /* how many PAGE_SIZE will do map/unmap once a time */ - __u8 expansion[76]; /* For future use */ -}; +#include "map_benchmark.h" struct map_benchmark_data { struct map_benchmark bparam; diff --git a/kernel/dma/map_benchmark.h b/kernel/dma/map_benchmark.h new file mode 100644 index 000000000000..62674c83bde4 --- /dev/null +++ b/kernel/dma/map_benchmark.h @@ -0,0 +1,31 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Copyright (C) 2022 HiSilicon Limited. + */ + +#ifndef _KERNEL_DMA_BENCHMARK_H +#define _KERNEL_DMA_BENCHMARK_H + +#define DMA_MAP_BENCHMARK _IOWR('d', 1, struct map_benchmark) +#define DMA_MAP_MAX_THREADS 1024 +#define DMA_MAP_MAX_SECONDS 300 +#define DMA_MAP_MAX_TRANS_DELAY (10 * NSEC_PER_MSEC) + +#define DMA_MAP_BIDIRECTIONAL 0 +#define DMA_MAP_TO_DEVICE 1 +#define DMA_MAP_FROM_DEVICE 2 + +struct map_benchmark { + __u64 avg_map_100ns; /* average map latency in 100ns */ + __u64 map_stddev; /* standard deviation of map latency */ + __u64 avg_unmap_100ns; /* as above */ + __u64 unmap_stddev; + __u32 threads; /* how many threads will do map/unmap in parallel */ + __u32 seconds; /* how long the test will last */ + __s32 node; /* which numa node this benchmark will run on */ + __u32 dma_bits; /* DMA addressing capability */ + __u32 dma_dir; /* DMA data direction */ + __u32 dma_trans_ns; /* time for DMA transmission in ns */ + __u32 granule; /* how many PAGE_SIZE will do map/unmap once a time */ +}; +#endif /* _KERNEL_DMA_BENCHMARK_H */ diff --git a/tools/testing/selftests/dma/dma_map_benchmark.c b/tools/testing/selftests/dma/dma_map_benchmark.c index 485dff51bad2..33bf073071aa 100644 --- a/tools/testing/selftests/dma/dma_map_benchmark.c +++ b/tools/testing/selftests/dma/dma_map_benchmark.c @@ -11,39 +11,16 @@ #include <sys/ioctl.h> #include <sys/mman.h> #include <linux/types.h> +#include "../../../../kernel/dma/map_benchmark.h" #define NSEC_PER_MSEC 1000000L -#define DMA_MAP_BENCHMARK _IOWR('d', 1, struct map_benchmark) -#define DMA_MAP_MAX_THREADS 1024 -#define DMA_MAP_MAX_SECONDS 300 -#define DMA_MAP_MAX_TRANS_DELAY (10 * NSEC_PER_MSEC) - -#define DMA_MAP_BIDIRECTIONAL 0 -#define DMA_MAP_TO_DEVICE 1 -#define DMA_MAP_FROM_DEVICE 2 - static char *directions[] = { "BIDIRECTIONAL", "TO_DEVICE", "FROM_DEVICE", }; -struct map_benchmark { - __u64 avg_map_100ns; /* average map latency in 100ns */ - __u64 map_stddev; /* standard deviation of map latency */ - __u64 avg_unmap_100ns; /* as above */ - __u64 unmap_stddev; - __u32 threads; /* how many threads will do map/unmap in parallel */ - __u32 seconds; /* how long the test will last */ - __s32 node; /* which numa node this benchmark will run on */ - __u32 dma_bits; /* DMA addressing capability */ - __u32 dma_dir; /* DMA data direction */ - __u32 dma_trans_ns; /* time for DMA transmission in ns */ - __u32 granule; /* how many PAGE_SIZE will do map/unmap once a time */ - __u8 expansion[76]; /* For future use */ -}; - int main(int argc, char **argv) { struct map_benchmark map; -- 2.33.0

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information about Email Marketing - id= 20223375917
by ISA Email Marketing 05 Mar '22

05 Mar '22

Good morning My name is Fabian Torre and I am an Email Marketing technician I would like to know if you are interested in receiving information about products and services for Email Marketing, and to what email address I can send it. Thanks a lot Whatsapp: +55 719 9204-2292 Skype: chronskype

1 0

Re: colored gaming keyboard from Shicheng factory
by Carol Zhong 04 Mar '22

04 Mar '22

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