From adf6271281a811dbcf2cb090b2a99a8520f7852b Mon Sep 17 00:00:00 2001 From: Ismael Luceno Date: Thu, 18 Apr 2013 08:16:08 -0300 Subject: [media] videodev2.h: Make V4L2_PIX_FMT_MPEG4 comment more specific about its usage Signed-off-by: Ismael Luceno Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- include/uapi/linux/videodev2.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include') diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h index f40b41c7e108..16c3cf71eb94 100644 --- a/include/uapi/linux/videodev2.h +++ b/include/uapi/linux/videodev2.h @@ -395,7 +395,7 @@ struct v4l2_pix_format { #define V4L2_PIX_FMT_H263 v4l2_fourcc('H', '2', '6', '3') /* H263 */ #define V4L2_PIX_FMT_MPEG1 v4l2_fourcc('M', 'P', 'G', '1') /* MPEG-1 ES */ #define V4L2_PIX_FMT_MPEG2 v4l2_fourcc('M', 'P', 'G', '2') /* MPEG-2 ES */ -#define V4L2_PIX_FMT_MPEG4 v4l2_fourcc('M', 'P', 'G', '4') /* MPEG-4 ES */ +#define V4L2_PIX_FMT_MPEG4 v4l2_fourcc('M', 'P', 'G', '4') /* MPEG-4 part 2 ES */ #define V4L2_PIX_FMT_XVID v4l2_fourcc('X', 'V', 'I', 'D') /* Xvid */ #define V4L2_PIX_FMT_VC1_ANNEX_G v4l2_fourcc('V', 'C', '1', 'G') /* SMPTE 421M Annex G compliant stream */ #define V4L2_PIX_FMT_VC1_ANNEX_L v4l2_fourcc('V', 'C', '1', 'L') /* SMPTE 421M Annex L compliant stream */ -- cgit v1.2.1 From 3020bea57fdb950bc6121a51d1e8e7b0a82c2827 Mon Sep 17 00:00:00 2001 From: Jakob Haufe Date: Sat, 13 Apr 2013 11:03:36 -0300 Subject: [media] rc: Add rc-delock-61959 This adds the keytable for the remote that comes with the Delock 61959. NEC protocol with address 0x866b. Signed-off-by: Jakob Haufe Reviewed-by: Antti Palosaari Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- include/media/rc-map.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include') diff --git a/include/media/rc-map.h b/include/media/rc-map.h index 5d5d3a30f04a..6628f5d01f52 100644 --- a/include/media/rc-map.h +++ b/include/media/rc-map.h @@ -111,6 +111,7 @@ void rc_map_init(void); #define RC_MAP_BUDGET_CI_OLD "rc-budget-ci-old" #define RC_MAP_CINERGY_1400 "rc-cinergy-1400" #define RC_MAP_CINERGY "rc-cinergy" +#define RC_MAP_DELOCK_61959 "rc-delock-61959" #define RC_MAP_DIB0700_NEC_TABLE "rc-dib0700-nec" #define RC_MAP_DIB0700_RC5_TABLE "rc-dib0700-rc5" #define RC_MAP_DIGITALNOW_TINYTWIN "rc-digitalnow-tinytwin" -- cgit v1.2.1 From 849325e331cd196914d1e1a9e19edeaa42e75037 Mon Sep 17 00:00:00 2001 From: "Lad, Prabhakar" Date: Fri, 3 May 2013 08:39:25 -0300 Subject: [media] media: davinci: vpbe: fix checkpatch warning for CamelCase This patch fixes checkpatch warning to avoid CamelCase. Signed-off-by: Lad, Prabhakar Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- include/media/davinci/vpbe_osd.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/include/media/davinci/vpbe_osd.h b/include/media/davinci/vpbe_osd.h index 42628fcfe1bd..de59364d7ed2 100644 --- a/include/media/davinci/vpbe_osd.h +++ b/include/media/davinci/vpbe_osd.h @@ -82,9 +82,9 @@ enum osd_pix_format { PIXFMT_4BPP, PIXFMT_8BPP, PIXFMT_RGB565, - PIXFMT_YCbCrI, + PIXFMT_YCBCRI, PIXFMT_RGB888, - PIXFMT_YCrCbI, + PIXFMT_YCRCBI, PIXFMT_NV12, PIXFMT_OSD_ATTR, }; -- cgit v1.2.1 From 63eb2ca171fc5e7c11b16dccd3dc087b050b788c Mon Sep 17 00:00:00 2001 From: "Lad, Prabhakar" Date: Fri, 3 May 2013 04:17:19 -0300 Subject: [media] media: i2c: tvp7002: enable TVP7002 decoder for media controller based usage This patch enables tvp7002 decoder driver for media controller based usage by adding v4l2_subdev_pad_ops operations support for enum_mbus_code, set_pad_format, get_pad_format and media_entity_init() on probe and media_entity_cleanup() on remove. Signed-off-by: Lad, Prabhakar Acked-by: Laurent Pinchart Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- include/media/tvp7002.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include') diff --git a/include/media/tvp7002.h b/include/media/tvp7002.h index ee4353459ef5..7123048408d6 100644 --- a/include/media/tvp7002.h +++ b/include/media/tvp7002.h @@ -26,6 +26,8 @@ #ifndef _TVP7002_H_ #define _TVP7002_H_ +#define TVP7002_MODULE_NAME "tvp7002" + /* Platform-dependent data * * clk_polarity: -- cgit v1.2.1 From b11460b0532dd22830a9f2fcdcad91b790c6b35b Mon Sep 17 00:00:00 2001 From: Mauro Carvalho Chehab Date: Fri, 26 Apr 2013 10:22:48 -0300 Subject: [media] saa7115: add detection code for gm7113c MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Adds a code that (auto)detects gm7113c clones. The auto-detection here is not perfect, as, on contrary to what it would be expected by looking into its datasheets some devices would return, instead: saa7115 0-0025: chip 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 @ 0x4a is unknown (found on a device labeled as GM7113C 1145 by Ezequiel Garcia) Signed-off-by: Mauro Carvalho Chehab Tested-by: Jon Arne Jørgensen Tested-by: Ezequiel Garcia Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- include/media/v4l2-chip-ident.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include') diff --git a/include/media/v4l2-chip-ident.h b/include/media/v4l2-chip-ident.h index c259b36bf1e9..543f89c18896 100644 --- a/include/media/v4l2-chip-ident.h +++ b/include/media/v4l2-chip-ident.h @@ -52,6 +52,8 @@ enum { V4L2_IDENT_SAA7115 = 105, V4L2_IDENT_SAA7118 = 108, + V4L2_IDENT_GM7113C = 140, + /* module saa7127: reserved range 150-199 */ V4L2_IDENT_SAA7127 = 157, V4L2_IDENT_SAA7129 = 159, -- cgit v1.2.1 From ff29feb9146d1c0020f2ccbb25369582c6a16681 Mon Sep 17 00:00:00 2001 From: "Lad, Prabhakar" Date: Mon, 20 May 2013 06:02:40 -0300 Subject: [media] videodev2.h: fix typos This patch fixes several typos in videodev2.h file Signed-off-by: Lad, Prabhakar Acked-by: Laurent Pinchart Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- include/uapi/linux/videodev2.h | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) (limited to 'include') diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h index 16c3cf71eb94..2c5e67a45436 100644 --- a/include/uapi/linux/videodev2.h +++ b/include/uapi/linux/videodev2.h @@ -555,7 +555,7 @@ struct v4l2_jpegcompression { __u32 jpeg_markers; /* Which markers should go into the JPEG * output. Unless you exactly know what * you do, leave them untouched. - * Inluding less markers will make the + * Including less markers will make the * resulting code smaller, but there will * be fewer applications which can read it. * The presence of the APP and COM marker @@ -567,7 +567,7 @@ struct v4l2_jpegcompression { #define V4L2_JPEG_MARKER_DRI (1<<5) /* Define Restart Interval */ #define V4L2_JPEG_MARKER_COM (1<<6) /* Comment segment */ #define V4L2_JPEG_MARKER_APP (1<<7) /* App segment, driver will - * allways use APP0 */ + * always use APP0 */ }; /* @@ -900,7 +900,7 @@ typedef __u64 v4l2_std_id; /* * "Common" PAL - This macro is there to be compatible with the old * V4L1 concept of "PAL": /BGDKHI. - * Several PAL standards are mising here: /M, /N and /Nc + * Several PAL standards are missing here: /M, /N and /Nc */ #define V4L2_STD_PAL (V4L2_STD_PAL_BG |\ V4L2_STD_PAL_DK |\ @@ -1790,7 +1790,7 @@ struct v4l2_event_subscription { #define V4L2_CHIP_MATCH_HOST V4L2_CHIP_MATCH_BRIDGE #define V4L2_CHIP_MATCH_I2C_DRIVER 1 /* Match against I2C driver name */ #define V4L2_CHIP_MATCH_I2C_ADDR 2 /* Match against I2C 7-bit address */ -#define V4L2_CHIP_MATCH_AC97 3 /* Match against anciliary AC97 chip */ +#define V4L2_CHIP_MATCH_AC97 3 /* Match against ancillary AC97 chip */ #define V4L2_CHIP_MATCH_SUBDEV 4 /* Match against subdev index */ struct v4l2_dbg_match { -- cgit v1.2.1 From 19ec93057439cffc3b89910cd356892fbe2172fa Mon Sep 17 00:00:00 2001 From: "Lad, Prabhakar" Date: Tue, 14 May 2013 06:45:31 -0300 Subject: [media] media: i2c: tvp7002: rearrange description of structure members This patch rearranges the description of field members of struct tvp7002_config. Also as the all the fields where accepting a value either 0/1, made the members as bool. Signed-off-by: Lad, Prabhakar Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- include/media/tvp7002.h | 44 ++++++++++++++++++++------------------------ 1 file changed, 20 insertions(+), 24 deletions(-) (limited to 'include') diff --git a/include/media/tvp7002.h b/include/media/tvp7002.h index 7123048408d6..fadb6afe9ef0 100644 --- a/include/media/tvp7002.h +++ b/include/media/tvp7002.h @@ -28,31 +28,27 @@ #define TVP7002_MODULE_NAME "tvp7002" -/* Platform-dependent data - * - * clk_polarity: - * 0 -> data clocked out on rising edge of DATACLK signal - * 1 -> data clocked out on falling edge of DATACLK signal - * hs_polarity: - * 0 -> active low HSYNC output - * 1 -> active high HSYNC output - * sog_polarity: - * 0 -> normal operation - * 1 -> operation with polarity inverted - * vs_polarity: - * 0 -> active low VSYNC output - * 1 -> active high VSYNC output - * fid_polarity: - * 0 -> the field ID output is set to logic 1 for an odd - * field (field 1) and set to logic 0 for an even - * field (field 0). - * 1 -> operation with polarity inverted. +/** + * struct tvp7002_config - Platform dependent data + *@clk_polarity: Clock polarity + * 0 - Data clocked out on rising edge of DATACLK signal + * 1 - Data clocked out on falling edge of DATACLK signal + *@hs_polarity: HSYNC polarity + * 0 - Active low HSYNC output, 1 - Active high HSYNC output + *@vs_polarity: VSYNC Polarity + * 0 - Active low VSYNC output, 1 - Active high VSYNC output + *@fid_polarity: Active-high Field ID polarity. + * 0 - The field ID output is set to logic 1 for an odd field + * (field 1) and set to logic 0 for an even field (field 0). + * 1 - Operation with polarity inverted. + *@sog_polarity: Active high Sync on Green output polarity. + * 0 - Normal operation, 1 - Operation with polarity inverted */ struct tvp7002_config { - u8 clk_polarity; - u8 hs_polarity; - u8 vs_polarity; - u8 fid_polarity; - u8 sog_polarity; + bool clk_polarity; + bool hs_polarity; + bool vs_polarity; + bool fid_polarity; + bool sog_polarity; }; #endif -- cgit v1.2.1 From 1bddf1b3ac021feb9dafcc2c6ef7018453e22589 Mon Sep 17 00:00:00 2001 From: Andrzej Hajda Date: Mon, 3 Jun 2013 05:16:13 -0300 Subject: [media] media: Rename media_entity_remote_source to media_entity_remote_pad Function media_entity_remote_source actually returns the remote pad to the given one, regardless if this is the source or the sink pad. Name media_entity_remote_pad is more adequate for this function. Signed-off-by: Andrzej Hajda Signed-off-by: Kyungmin Park Acked-by: Sakari Ailus Acked-by: Sylwester Nawrocki Signed-off-by: Laurent Pinchart Signed-off-by: Mauro Carvalho Chehab --- include/media/media-entity.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include') diff --git a/include/media/media-entity.h b/include/media/media-entity.h index 0c16f518ee09..4eefedcaa66d 100644 --- a/include/media/media-entity.h +++ b/include/media/media-entity.h @@ -132,7 +132,7 @@ int __media_entity_setup_link(struct media_link *link, u32 flags); int media_entity_setup_link(struct media_link *link, u32 flags); struct media_link *media_entity_find_link(struct media_pad *source, struct media_pad *sink); -struct media_pad *media_entity_remote_source(struct media_pad *pad); +struct media_pad *media_entity_remote_pad(struct media_pad *pad); struct media_entity *media_entity_get(struct media_entity *entity); void media_entity_put(struct media_entity *entity); -- cgit v1.2.1 From bc7584b0b7a99326d31195f81f7494efe9fe0c0f Mon Sep 17 00:00:00 2001 From: Sylwester Nawrocki Date: Fri, 31 May 2013 11:37:18 -0300 Subject: [media] exynos4-is: Add struct exynos_video_entity This patch introduces common structure for the video entities to handle all video nodes and media pipelines associated with them in more generic way. Signed-off-by: Sylwester Nawrocki Signed-off-by: Kyungmin Park Signed-off-by: Mauro Carvalho Chehab --- include/media/s5p_fimc.h | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'include') diff --git a/include/media/s5p_fimc.h b/include/media/s5p_fimc.h index f50969025ef3..f5313b402eb7 100644 --- a/include/media/s5p_fimc.h +++ b/include/media/s5p_fimc.h @@ -13,6 +13,7 @@ #define S5P_FIMC_H_ #include +#include #include /* @@ -157,6 +158,10 @@ struct fimc_pipeline { struct media_pipeline *m_pipeline; }; +struct exynos_video_entity { + struct video_device vdev; +}; + /* * Media pipeline operations to be called from within the fimc(-lite) * video node when it is the last entity of the pipeline. Implemented -- cgit v1.2.1 From 403dfbec45419c1838e0ea3be16625986ec17cfd Mon Sep 17 00:00:00 2001 From: Sylwester Nawrocki Date: Fri, 31 May 2013 11:37:22 -0300 Subject: [media] exynos4-is: Use common exynos_media_pipeline data structure This enumeration is now private to exynos4-is and the exynos5 camera subsystem driver may have the subdevs handling designed differently. Signed-off-by: Sylwester Nawrocki Signed-off-by: Kyungmin Park Signed-off-by: Mauro Carvalho Chehab --- include/media/s5p_fimc.h | 53 ++++++++++++++++++++++++------------------------ 1 file changed, 26 insertions(+), 27 deletions(-) (limited to 'include') diff --git a/include/media/s5p_fimc.h b/include/media/s5p_fimc.h index f5313b402eb7..0afadb663bbd 100644 --- a/include/media/s5p_fimc.h +++ b/include/media/s5p_fimc.h @@ -141,41 +141,40 @@ struct fimc_fmt { #define FMT_FLAGS_YUV (1 << 7) }; -enum fimc_subdev_index { - IDX_SENSOR, - IDX_CSIS, - IDX_FLITE, - IDX_IS_ISP, - IDX_FIMC, - IDX_MAX, -}; - -struct media_pipeline; -struct v4l2_subdev; +struct exynos_media_pipeline; -struct fimc_pipeline { - struct v4l2_subdev *subdevs[IDX_MAX]; - struct media_pipeline *m_pipeline; +/* + * Media pipeline operations to be called from within a video node, i.e. the + * last entity within the pipeline. Implemented by related media device driver. + */ +struct exynos_media_pipeline_ops { + int (*prepare)(struct exynos_media_pipeline *p, + struct media_entity *me); + int (*unprepare)(struct exynos_media_pipeline *p); + int (*open)(struct exynos_media_pipeline *p, struct media_entity *me, + bool resume); + int (*close)(struct exynos_media_pipeline *p); + int (*set_stream)(struct exynos_media_pipeline *p, bool state); }; struct exynos_video_entity { struct video_device vdev; + struct exynos_media_pipeline *pipe; }; -/* - * Media pipeline operations to be called from within the fimc(-lite) - * video node when it is the last entity of the pipeline. Implemented - * by corresponding media device driver. - */ -struct fimc_pipeline_ops { - int (*open)(struct fimc_pipeline *p, struct media_entity *me, - bool resume); - int (*close)(struct fimc_pipeline *p); - int (*set_stream)(struct fimc_pipeline *p, bool state); +struct exynos_media_pipeline { + struct media_pipeline mp; + const struct exynos_media_pipeline_ops *ops; }; -#define fimc_pipeline_call(f, op, p, args...) \ - (!(f) ? -ENODEV : (((f)->pipeline_ops && (f)->pipeline_ops->op) ? \ - (f)->pipeline_ops->op((p), ##args) : -ENOIOCTLCMD)) +static inline struct exynos_video_entity *vdev_to_exynos_video_entity( + struct video_device *vdev) +{ + return container_of(vdev, struct exynos_video_entity, vdev); +} + +#define fimc_pipeline_call(ent, op, args...) \ + (!(ent) ? -ENOENT : (((ent)->pipe->ops && (ent)->pipe->ops->op) ? \ + (ent)->pipe->ops->op(((ent)->pipe), ##args) : -ENOIOCTLCMD)) \ #endif /* S5P_FIMC_H_ */ -- cgit v1.2.1 From 813f5c0ac5ccf7dd9c216a8f7fbe827ca36cb83f Mon Sep 17 00:00:00 2001 From: Sylwester Nawrocki Date: Fri, 31 May 2013 10:37:26 -0300 Subject: [media] media: Change media device link_notify behaviour Currently the media device link_notify callback is invoked before the actual change of state of a link when the link is being enabled, and after the actual change of state when the link is being disabled. This doesn't allow a media device driver to perform any operations on a full graph before a link is disabled, as well as performing any tasks on a modified graph right after a link's state is changed. This patch modifies signature of the link_notify callback. This callback is now called always before and after a link's state change. To distinguish the notifications a 'notification' argument is added to the link_notify callback: MEDIA_DEV_NOTIFY_PRE_LINK_CH indicates notification before link's state change and MEDIA_DEV_NOTIFY_POST_LINK_CH corresponds to a notification after link flags change. [mchehab@redhat.com: whitespace cleanups] Signed-off-by: Sylwester Nawrocki Signed-off-by: Kyungmin Park Acked-by: Laurent Pinchart Acked-by: Sakari Ailus Signed-off-by: Mauro Carvalho Chehab --- include/media/media-device.h | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/include/media/media-device.h b/include/media/media-device.h index eaade9815bb6..12155a9596c4 100644 --- a/include/media/media-device.h +++ b/include/media/media-device.h @@ -45,6 +45,7 @@ struct device; * @entities: List of registered entities * @lock: Entities list lock * @graph_mutex: Entities graph operation lock + * @link_notify: Link state change notification callback * * This structure represents an abstract high-level media device. It allows easy * access to entities and provides basic media device-level support. The @@ -75,10 +76,14 @@ struct media_device { /* Serializes graph operations. */ struct mutex graph_mutex; - int (*link_notify)(struct media_pad *source, - struct media_pad *sink, u32 flags); + int (*link_notify)(struct media_link *link, u32 flags, + unsigned int notification); }; +/* Supported link_notify @notification values. */ +#define MEDIA_DEV_NOTIFY_PRE_LINK_CH 0 +#define MEDIA_DEV_NOTIFY_POST_LINK_CH 1 + /* media_devnode to media_device */ #define to_media_device(node) container_of(node, struct media_device, devnode) -- cgit v1.2.1 From d97ada97ae7b29a83bc04fc3a05ef7b75c88e335 Mon Sep 17 00:00:00 2001 From: "Lad, Prabhakar" Date: Sat, 25 May 2013 13:39:34 -0300 Subject: [media] media: i2c: ths7303: remove init_enable option from pdata This patch removes init_enable option from pdata, the init_enable was intended that the device should start streaming video immediately but ideally the bridge drivers should call s_stream explicitly for such devices to start video. Signed-off-by: Lad, Prabhakar Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- include/media/ths7303.h | 2 -- 1 file changed, 2 deletions(-) (limited to 'include') diff --git a/include/media/ths7303.h b/include/media/ths7303.h index 980ec51d574d..a7b49297da82 100644 --- a/include/media/ths7303.h +++ b/include/media/ths7303.h @@ -30,13 +30,11 @@ * @ch_1: Bias value for channel one. * @ch_2: Bias value for channel two. * @ch_3: Bias value for channel three. - * @init_enable: initalize on init. */ struct ths7303_platform_data { u8 ch_1; u8 ch_2; u8 ch_3; - u8 init_enable; }; #endif -- cgit v1.2.1 From 33001010013749886eca5b5645efd80006dd2e51 Mon Sep 17 00:00:00 2001 From: Hans Verkuil Date: Wed, 29 May 2013 06:59:45 -0300 Subject: [media] tveeprom: remove v4l2-chip-ident.h include Replace the V4L2_IDENT_* usage with tveeprom-specific defines. This header is deprecated, so those defines shouldn't be used anymore. The em28xx driver is the only one that uses the tveeprom audio_processor field, so that has been updated to use the new tveeprom AUDPROC define. Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- include/media/tveeprom.h | 11 +++++++++++ 1 file changed, 11 insertions(+) (limited to 'include') diff --git a/include/media/tveeprom.h b/include/media/tveeprom.h index a8ad75a9152a..4a1191abd936 100644 --- a/include/media/tveeprom.h +++ b/include/media/tveeprom.h @@ -1,6 +1,17 @@ /* */ +enum tveeprom_audio_processor { + /* No audio processor present */ + TVEEPROM_AUDPROC_NONE, + /* The audio processor is internal to the video processor */ + TVEEPROM_AUDPROC_INTERNAL, + /* The audio processor is a MSPXXXX device */ + TVEEPROM_AUDPROC_MSP, + /* The audio processor is another device */ + TVEEPROM_AUDPROC_OTHER, +}; + struct tveeprom { u32 has_radio; /* If has_ir == 0, then it is unknown what the IR capabilities are, -- cgit v1.2.1 From ca37157506ef53dcf41132aaedab70659509ccee Mon Sep 17 00:00:00 2001 From: Hans Verkuil Date: Mon, 3 Jun 2013 05:36:50 -0300 Subject: [media] v4l2: remove deprecated current_norm support completely The use of current_norm to keep track of the current standard has been deprecated for quite some time. Now that all drivers that were using it have been converted to use g_std we can drop it from the core. It was a bad idea to introduce this at the time: since it is a per-device node field it didn't work for drivers that create multiple nodes, all sharing the same tuner (e.g. video and vbi nodes, or a raw video node and a compressed video node). In addition it was very surprising behavior that g_std was implemented in the core. Often drivers implemented both g_std and current_norm, because they didn't understand how it should be used. Since the benefits were very limited (if they were there at all), it is better to just drop it and require that drivers just implement g_std. Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- include/media/v4l2-dev.h | 1 - 1 file changed, 1 deletion(-) (limited to 'include') diff --git a/include/media/v4l2-dev.h b/include/media/v4l2-dev.h index 95d1c91770f4..b2c3776a1cff 100644 --- a/include/media/v4l2-dev.h +++ b/include/media/v4l2-dev.h @@ -129,7 +129,6 @@ struct video_device /* Video standard vars */ v4l2_std_id tvnorms; /* Supported tv norms */ - v4l2_std_id current_norm; /* Current tvnorm */ /* callbacks */ void (*release)(struct video_device *vdev); -- cgit v1.2.1 From 069e2b351de67e7a837b15b3d26c65c19b790cc3 Mon Sep 17 00:00:00 2001 From: Christoph Lameter Date: Fri, 14 Jun 2013 19:55:13 +0000 Subject: slob: Rework #ifdeffery in slab.h Make the SLOB specific stuff harmonize more with the way the other allocators do it. Create the typical kmalloc constants for that purpose. SLOB does not support it but the constants help us avoid #ifdefs. Signed-off-by: Christoph Lameter Signed-off-by: Pekka Enberg --- include/linux/slab.h | 39 ++++++++++++++++++++++++++++----------- 1 file changed, 28 insertions(+), 11 deletions(-) (limited to 'include') diff --git a/include/linux/slab.h b/include/linux/slab.h index 0c621752caa6..9690c14eb7fb 100644 --- a/include/linux/slab.h +++ b/include/linux/slab.h @@ -169,11 +169,7 @@ struct kmem_cache { struct list_head list; /* List of all slab caches on the system */ }; -#define KMALLOC_MAX_SIZE (1UL << 30) - -#include - -#else /* CONFIG_SLOB */ +#endif /* CONFIG_SLOB */ /* * Kmalloc array related definitions @@ -195,7 +191,9 @@ struct kmem_cache { #ifndef KMALLOC_SHIFT_LOW #define KMALLOC_SHIFT_LOW 5 #endif -#else +#endif + +#ifdef CONFIG_SLUB /* * SLUB allocates up to order 2 pages directly and otherwise * passes the request to the page allocator. @@ -207,6 +205,19 @@ struct kmem_cache { #endif #endif +#ifdef CONFIG_SLOB +/* + * SLOB passes all page size and larger requests to the page allocator. + * No kmalloc array is necessary since objects of different sizes can + * be allocated from the same page. + */ +#define KMALLOC_SHIFT_MAX 30 +#define KMALLOC_SHIFT_HIGH PAGE_SHIFT +#ifndef KMALLOC_SHIFT_LOW +#define KMALLOC_SHIFT_LOW 3 +#endif +#endif + /* Maximum allocatable size */ #define KMALLOC_MAX_SIZE (1UL << KMALLOC_SHIFT_MAX) /* Maximum size for which we actually use a slab cache */ @@ -221,6 +232,7 @@ struct kmem_cache { #define KMALLOC_MIN_SIZE (1 << KMALLOC_SHIFT_LOW) #endif +#ifndef CONFIG_SLOB extern struct kmem_cache *kmalloc_caches[KMALLOC_SHIFT_HIGH + 1]; #ifdef CONFIG_ZONE_DMA extern struct kmem_cache *kmalloc_dma_caches[KMALLOC_SHIFT_HIGH + 1]; @@ -275,13 +287,18 @@ static __always_inline int kmalloc_index(size_t size) /* Will never be reached. Needed because the compiler may complain */ return -1; } +#endif /* !CONFIG_SLOB */ #ifdef CONFIG_SLAB #include -#elif defined(CONFIG_SLUB) +#endif + +#ifdef CONFIG_SLUB #include -#else -#error "Unknown slab allocator" +#endif + +#ifdef CONFIG_SLOB +#include #endif /* @@ -291,6 +308,7 @@ static __always_inline int kmalloc_index(size_t size) */ static __always_inline int kmalloc_size(int n) { +#ifndef CONFIG_SLOB if (n > 2) return 1 << n; @@ -299,10 +317,9 @@ static __always_inline int kmalloc_size(int n) if (n == 2 && KMALLOC_MIN_SIZE <= 64) return 192; - +#endif return 0; } -#endif /* !CONFIG_SLOB */ /* * Setting ARCH_SLAB_MINALIGN in arch headers allows a different alignment. -- cgit v1.2.1 From 7349cec14d63251d093a213f7d40ed3c732b3734 Mon Sep 17 00:00:00 2001 From: Sylwester Nawrocki Date: Thu, 9 May 2013 08:29:32 -0300 Subject: [media] media: Add a function removing all links of a media entity This function allows to remove all media entity's links to other entities, leaving no references to a media entity's links array at its remote entities. Currently, when a driver of some entity is removed it will free its media entities links[] array, leaving dangling pointers at other entities that are part of same media graph. This is troublesome when drivers of a media device entities are in separate kernel modules, removing only some modules will leave others in an incorrect state. This function is intended to be used when an entity is being unregistered from a media device. With an assumption that normally the media links should be created between media entities registered to a media device, with the graph mutex held. Signed-off-by: Sylwester Nawrocki Reviewed-by: Andrzej Hajda Signed-off-by: Kyungmin Park Acked-by: Laurent Pinchart Acked-by: Sakari Ailus Signed-off-by: Mauro Carvalho Chehab --- include/media/media-entity.h | 3 +++ 1 file changed, 3 insertions(+) (limited to 'include') diff --git a/include/media/media-entity.h b/include/media/media-entity.h index 4eefedcaa66d..06bacf937d61 100644 --- a/include/media/media-entity.h +++ b/include/media/media-entity.h @@ -128,6 +128,9 @@ void media_entity_cleanup(struct media_entity *entity); int media_entity_create_link(struct media_entity *source, u16 source_pad, struct media_entity *sink, u16 sink_pad, u32 flags); +void __media_entity_remove_links(struct media_entity *entity); +void media_entity_remove_links(struct media_entity *entity); + int __media_entity_setup_link(struct media_link *link, u32 flags); int media_entity_setup_link(struct media_link *link, u32 flags); struct media_link *media_entity_find_link(struct media_pad *source, -- cgit v1.2.1 From 3c00ea82c724fab0b98f15428a804cb45eb9ad38 Mon Sep 17 00:00:00 2001 From: Frederic Weisbecker Date: Sun, 19 May 2013 20:45:15 +0200 Subject: watchdog: Rename confusing state variable We have two very conflicting state variable names in the watchdog: * watchdog_enabled: This one reflects the user interface. It's set to 1 by default and can be overriden with boot options or sysctl/procfs interface. * watchdog_disabled: This is the internal toggle state that tells if watchdog threads, timers and NMI events are currently running or not. This state mostly depends on the user settings. It's a convenient state latch. Now we really need to find clearer names because those are just too confusing to encourage deep review. watchdog_enabled now becomes watchdog_user_enabled to reflect its purpose as an interface. watchdog_disabled becomes watchdog_running to suggest its role as a pure internal state. Signed-off-by: Frederic Weisbecker Cc: Srivatsa S. Bhat Cc: Anish Singh Cc: Steven Rostedt Cc: Paul E. McKenney Cc: Ingo Molnar Cc: Thomas Gleixner Cc: Peter Zijlstra Cc: Borislav Petkov Cc: Li Zhong Cc: Don Zickus --- include/linux/nmi.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include') diff --git a/include/linux/nmi.h b/include/linux/nmi.h index db50840e6355..6a45fb583ff1 100644 --- a/include/linux/nmi.h +++ b/include/linux/nmi.h @@ -46,7 +46,7 @@ static inline bool trigger_all_cpu_backtrace(void) #ifdef CONFIG_LOCKUP_DETECTOR int hw_nmi_is_cpu_stuck(struct pt_regs *); u64 hw_nmi_get_sample_period(int watchdog_thresh); -extern int watchdog_enabled; +extern int watchdog_user_enabled; extern int watchdog_thresh; struct ctl_table; extern int proc_dowatchdog(struct ctl_table *, int , -- cgit v1.2.1 From 8d36eb01da5d371feffa280e501377b5c450f5a5 Mon Sep 17 00:00:00 2001 From: Sean Hefty Date: Wed, 29 May 2013 10:09:07 -0700 Subject: RDMA/cma: Define native IB address Define AF_IB and sockaddr_ib to allow the rdma_cm to use native IB addressing. Signed-off-by: Sean Hefty Signed-off-by: Roland Dreier --- include/linux/socket.h | 2 ++ include/rdma/ib.h | 89 ++++++++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 91 insertions(+) create mode 100644 include/rdma/ib.h (limited to 'include') diff --git a/include/linux/socket.h b/include/linux/socket.h index b10ce4b341ea..230c04bda3e2 100644 --- a/include/linux/socket.h +++ b/include/linux/socket.h @@ -167,6 +167,7 @@ struct ucred { #define AF_PPPOX 24 /* PPPoX sockets */ #define AF_WANPIPE 25 /* Wanpipe API Sockets */ #define AF_LLC 26 /* Linux LLC */ +#define AF_IB 27 /* Native InfiniBand address */ #define AF_CAN 29 /* Controller Area Network */ #define AF_TIPC 30 /* TIPC sockets */ #define AF_BLUETOOTH 31 /* Bluetooth sockets */ @@ -211,6 +212,7 @@ struct ucred { #define PF_PPPOX AF_PPPOX #define PF_WANPIPE AF_WANPIPE #define PF_LLC AF_LLC +#define PF_IB AF_IB #define PF_CAN AF_CAN #define PF_TIPC AF_TIPC #define PF_BLUETOOTH AF_BLUETOOTH diff --git a/include/rdma/ib.h b/include/rdma/ib.h new file mode 100644 index 000000000000..cf8f9e700e48 --- /dev/null +++ b/include/rdma/ib.h @@ -0,0 +1,89 @@ +/* + * Copyright (c) 2010 Intel Corporation. All rights reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * OpenIB.org BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#if !defined(_RDMA_IB_H) +#define _RDMA_IB_H + +#include + +struct ib_addr { + union { + __u8 uib_addr8[16]; + __be16 uib_addr16[8]; + __be32 uib_addr32[4]; + __be64 uib_addr64[2]; + } ib_u; +#define sib_addr8 ib_u.uib_addr8 +#define sib_addr16 ib_u.uib_addr16 +#define sib_addr32 ib_u.uib_addr32 +#define sib_addr64 ib_u.uib_addr64 +#define sib_raw ib_u.uib_addr8 +#define sib_subnet_prefix ib_u.uib_addr64[0] +#define sib_interface_id ib_u.uib_addr64[1] +}; + +static inline int ib_addr_any(const struct ib_addr *a) +{ + return ((a->sib_addr64[0] | a->sib_addr64[1]) == 0); +} + +static inline int ib_addr_loopback(const struct ib_addr *a) +{ + return ((a->sib_addr32[0] | a->sib_addr32[1] | + a->sib_addr32[2] | (a->sib_addr32[3] ^ htonl(1))) == 0); +} + +static inline void ib_addr_set(struct ib_addr *addr, + __be32 w1, __be32 w2, __be32 w3, __be32 w4) +{ + addr->sib_addr32[0] = w1; + addr->sib_addr32[1] = w2; + addr->sib_addr32[2] = w3; + addr->sib_addr32[3] = w4; +} + +static inline int ib_addr_cmp(const struct ib_addr *a1, const struct ib_addr *a2) +{ + return memcmp(a1, a2, sizeof(struct ib_addr)); +} + +struct sockaddr_ib { + unsigned short int sib_family; /* AF_IB */ + __be16 sib_pkey; + __be32 sib_flowinfo; + struct ib_addr sib_addr; + __be64 sib_sid; + __be64 sib_sid_mask; + __u64 sib_scope_id; +}; + +#endif /* _RDMA_IB_H */ -- cgit v1.2.1 From ef560861c01c301cde3da154eb9c1c2619924c3a Mon Sep 17 00:00:00 2001 From: Sean Hefty Date: Wed, 29 May 2013 10:09:10 -0700 Subject: IB/addr: Add AF_IB support to ip_addr_size Add support for AF_IB to ip_addr_size, and rename the function to account for the change. Give the compiler more control over whether the call should be inline or not by moving the definition into the .c file, removing the static inline, and exporting it. Signed-off-by: Sean Hefty Signed-off-by: Roland Dreier --- include/rdma/ib_addr.h | 6 +----- 1 file changed, 1 insertion(+), 5 deletions(-) (limited to 'include') diff --git a/include/rdma/ib_addr.h b/include/rdma/ib_addr.h index 99965395c5f3..f3ac0f2c4c66 100644 --- a/include/rdma/ib_addr.h +++ b/include/rdma/ib_addr.h @@ -102,11 +102,7 @@ void rdma_addr_cancel(struct rdma_dev_addr *addr); int rdma_copy_addr(struct rdma_dev_addr *dev_addr, struct net_device *dev, const unsigned char *dst_dev_addr); -static inline int ip_addr_size(struct sockaddr *addr) -{ - return addr->sa_family == AF_INET6 ? - sizeof(struct sockaddr_in6) : sizeof(struct sockaddr_in); -} +int rdma_addr_size(struct sockaddr *addr); static inline u16 ib_addr_get_pkey(struct rdma_dev_addr *dev_addr) { -- cgit v1.2.1 From 58afdcb7382234ebd780e43b17edde92a5853cca Mon Sep 17 00:00:00 2001 From: Sean Hefty Date: Wed, 29 May 2013 10:09:11 -0700 Subject: RDMA/cma: Update port reservation to support AF_IB The AF_IB uses a 64-bit service id (SID), which the user can control through the use of a mask. The rdma_cm will assign values to the unmasked portions of the SID based on the selected port space and port number. Because the IB spec divides the SID range into several regions, a SID/mask combination may fall into one of the existing port space ranges as defined by the RDMA CM IP Annex. Map the AF_IB SID to the correct RDMA port space. Signed-off-by: Sean Hefty Signed-off-by: Roland Dreier --- include/rdma/rdma_cm.h | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'include') diff --git a/include/rdma/rdma_cm.h b/include/rdma/rdma_cm.h index ad3a3142383a..1e6c3c7af898 100644 --- a/include/rdma/rdma_cm.h +++ b/include/rdma/rdma_cm.h @@ -70,6 +70,11 @@ enum rdma_port_space { RDMA_PS_UDP = 0x0111, }; +#define RDMA_IB_IP_PS_MASK 0xFFFFFFFFFFFF0000ULL +#define RDMA_IB_IP_PS_TCP 0x0000000001060000ULL +#define RDMA_IB_IP_PS_UDP 0x0000000001110000ULL +#define RDMA_IB_IP_PS_IB 0x00000000013F0000ULL + struct rdma_addr { struct sockaddr_storage src_addr; struct sockaddr_storage dst_addr; -- cgit v1.2.1 From 5c438135adf90b33cb00e5351becf1e557bbdd9d Mon Sep 17 00:00:00 2001 From: Sean Hefty Date: Wed, 29 May 2013 10:09:23 -0700 Subject: RDMA/cma: Set qkey for AF_IB Allow the user to specify the qkey when using AF_IB. The qkey is added to struct rdma_ucm_conn_param in place of a reserved field, but for backwards compatability, is only accessed if the associated rdma_cm_id is using AF_IB. Signed-off-by: Sean Hefty Signed-off-by: Roland Dreier --- include/rdma/rdma_cm.h | 1 + include/uapi/rdma/rdma_user_cm.h | 2 +- 2 files changed, 2 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/include/rdma/rdma_cm.h b/include/rdma/rdma_cm.h index 1e6c3c7af898..966f90ba8d8a 100644 --- a/include/rdma/rdma_cm.h +++ b/include/rdma/rdma_cm.h @@ -98,6 +98,7 @@ struct rdma_conn_param { /* Fields below ignored if a QP is created on the rdma_cm_id. */ u8 srq; u32 qp_num; + u32 qkey; }; struct rdma_ud_param { diff --git a/include/uapi/rdma/rdma_user_cm.h b/include/uapi/rdma/rdma_user_cm.h index 1ee9239ff8c2..29de08f603ac 100644 --- a/include/uapi/rdma/rdma_user_cm.h +++ b/include/uapi/rdma/rdma_user_cm.h @@ -131,7 +131,7 @@ struct rdma_ucm_query_route_resp { struct rdma_ucm_conn_param { __u32 qp_num; - __u32 reserved; + __u32 qkey; __u8 private_data[RDMA_MAX_PRIVATE_DATA]; __u8 private_data_len; __u8 srq; -- cgit v1.2.1 From ee7aed4528fb3c44a36abd79eb23fd5401a5b697 Mon Sep 17 00:00:00 2001 From: Sean Hefty Date: Wed, 29 May 2013 10:09:25 -0700 Subject: RDMA/ucma: Support querying for AF_IB addresses The sockaddr structure for AF_IB is larger than sockaddr_in6. The rdma cm user space ABI uses the latter to exchange address information between user space and the kernel. To support querying for larger addresses, define a new query command that exchanges data using sockaddr_storage, rather than sockaddr_in6. Unlike the existing query_route command, the new command only returns address information. Route (i.e. path record) data is separated. Signed-off-by: Sean Hefty Signed-off-by: Roland Dreier --- include/uapi/rdma/rdma_user_cm.h | 22 +++++++++++++++++++--- 1 file changed, 19 insertions(+), 3 deletions(-) (limited to 'include') diff --git a/include/uapi/rdma/rdma_user_cm.h b/include/uapi/rdma/rdma_user_cm.h index 29de08f603ac..3ea7e7a4d54b 100644 --- a/include/uapi/rdma/rdma_user_cm.h +++ b/include/uapi/rdma/rdma_user_cm.h @@ -61,7 +61,8 @@ enum { RDMA_USER_CM_CMD_NOTIFY, RDMA_USER_CM_CMD_JOIN_MCAST, RDMA_USER_CM_CMD_LEAVE_MCAST, - RDMA_USER_CM_CMD_MIGRATE_ID + RDMA_USER_CM_CMD_MIGRATE_ID, + RDMA_USER_CM_CMD_QUERY }; /* @@ -113,10 +114,14 @@ struct rdma_ucm_resolve_route { __u32 timeout_ms; }; -struct rdma_ucm_query_route { +enum { + RDMA_USER_CM_QUERY_ADDR +}; + +struct rdma_ucm_query { __u64 response; __u32 id; - __u32 reserved; + __u32 option; }; struct rdma_ucm_query_route_resp { @@ -129,6 +134,17 @@ struct rdma_ucm_query_route_resp { __u8 reserved[3]; }; +struct rdma_ucm_query_addr_resp { + __u64 node_guid; + __u8 port_num; + __u8 reserved; + __u16 pkey; + __u16 src_size; + __u16 dst_size; + struct sockaddr_storage src_addr; + struct sockaddr_storage dst_addr; +}; + struct rdma_ucm_conn_param { __u32 qp_num; __u32 qkey; -- cgit v1.2.1 From 2e08b5879e9244fa893fe09f5b887f72f4e6c29b Mon Sep 17 00:00:00 2001 From: Sean Hefty Date: Wed, 29 May 2013 10:09:26 -0700 Subject: IB/sa: Export function to pack a path record into wire format Allow converting from struct ib_sa_path_rec to the IB defined SA path record wire format. This will be used to report path data from the rdma cm into user space. Signed-off-by: Sean Hefty Signed-off-by: Roland Dreier --- include/rdma/ib_sa.h | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'include') diff --git a/include/rdma/ib_sa.h b/include/rdma/ib_sa.h index 8275e539bace..125f8714301d 100644 --- a/include/rdma/ib_sa.h +++ b/include/rdma/ib_sa.h @@ -401,6 +401,12 @@ int ib_init_ah_from_path(struct ib_device *device, u8 port_num, struct ib_sa_path_rec *rec, struct ib_ah_attr *ah_attr); +/** + * ib_sa_pack_path - Conert a path record from struct ib_sa_path_rec + * to IB MAD wire format. + */ +void ib_sa_pack_path(struct ib_sa_path_rec *rec, void *attribute); + /** * ib_sa_unpack_path - Convert a path record from MAD format to struct * ib_sa_path_rec. @@ -418,4 +424,5 @@ int ib_sa_guid_info_rec_query(struct ib_sa_client *client, void *context), void *context, struct ib_sa_query **sa_query); + #endif /* IB_SA_H */ -- cgit v1.2.1 From ac53b264b2f39e89781e3b855008123dfdb44aea Mon Sep 17 00:00:00 2001 From: Sean Hefty Date: Wed, 29 May 2013 10:09:27 -0700 Subject: RDMA/ucma: Support querying when IB paths are not reversible The current query_route call can return up to two path records. The assumption being that one is the primary path, with optional support for an alternate path. In both cases, the paths are assumed to be reversible and are used to send CM MADs. With the ability to manually set IB path data, the rdma cm can eventually be capable of using up to 6 paths per connection: forward primary, reverse primary, forward alternate, reverse alternate, reversible primary path for CM MADs reversible alternate path for CM MADs. (It is unclear at this time if IB routing will complicate this) In order to handle more flexible routing topologies, add a new command to report any number of paths. Signed-off-by: Sean Hefty Signed-off-by: Roland Dreier --- include/uapi/rdma/rdma_user_cm.h | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/include/uapi/rdma/rdma_user_cm.h b/include/uapi/rdma/rdma_user_cm.h index 3ea7e7a4d54b..07eb6cfa926c 100644 --- a/include/uapi/rdma/rdma_user_cm.h +++ b/include/uapi/rdma/rdma_user_cm.h @@ -115,7 +115,8 @@ struct rdma_ucm_resolve_route { }; enum { - RDMA_USER_CM_QUERY_ADDR + RDMA_USER_CM_QUERY_ADDR, + RDMA_USER_CM_QUERY_PATH }; struct rdma_ucm_query { @@ -145,6 +146,12 @@ struct rdma_ucm_query_addr_resp { struct sockaddr_storage dst_addr; }; +struct rdma_ucm_query_path_resp { + __u32 num_paths; + __u32 reserved; + struct ib_path_rec_data path_data[0]; +}; + struct rdma_ucm_conn_param { __u32 qp_num; __u32 qkey; -- cgit v1.2.1 From cf53936f229d81131fef475919f163ce566a205f Mon Sep 17 00:00:00 2001 From: Sean Hefty Date: Wed, 29 May 2013 10:09:28 -0700 Subject: RDMA/cma: Export cma_get_service_id() Allow the rdma_ucm to query the IB service ID formed or allocated by the rdma_cm by exporting the cma_get_service_id() functionality. Signed-off-by: Sean Hefty Signed-off-by: Roland Dreier --- include/rdma/rdma_cm.h | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'include') diff --git a/include/rdma/rdma_cm.h b/include/rdma/rdma_cm.h index 966f90ba8d8a..1ed2088dc9f5 100644 --- a/include/rdma/rdma_cm.h +++ b/include/rdma/rdma_cm.h @@ -373,4 +373,11 @@ int rdma_set_reuseaddr(struct rdma_cm_id *id, int reuse); */ int rdma_set_afonly(struct rdma_cm_id *id, int afonly); + /** + * rdma_get_service_id - Return the IB service ID for a specified address. + * @id: Communication identifier associated with the address. + * @addr: Address for the service ID. + */ +__be64 rdma_get_service_id(struct rdma_cm_id *id, struct sockaddr *addr); + #endif /* RDMA_CM_H */ -- cgit v1.2.1 From edaa7a5578988bcf12f68f14fb002bc0c87e2801 Mon Sep 17 00:00:00 2001 From: Sean Hefty Date: Wed, 29 May 2013 10:09:29 -0700 Subject: RDMA/ucma: Add ability to query GID addresses Part of address resolution is mapping IP addresses to IB GIDs. With the changes to support querying larger addresses and more path records, also provide a way to query IB GIDs after resolution completes. Signed-off-by: Sean Hefty Signed-off-by: Roland Dreier --- include/uapi/rdma/rdma_user_cm.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/include/uapi/rdma/rdma_user_cm.h b/include/uapi/rdma/rdma_user_cm.h index 07eb6cfa926c..ea79253ceb13 100644 --- a/include/uapi/rdma/rdma_user_cm.h +++ b/include/uapi/rdma/rdma_user_cm.h @@ -116,7 +116,8 @@ struct rdma_ucm_resolve_route { enum { RDMA_USER_CM_QUERY_ADDR, - RDMA_USER_CM_QUERY_PATH + RDMA_USER_CM_QUERY_PATH, + RDMA_USER_CM_QUERY_GID }; struct rdma_ucm_query { -- cgit v1.2.1 From 05ad94577ecd5a101889d04aa099b738ec5ee34f Mon Sep 17 00:00:00 2001 From: Sean Hefty Date: Wed, 29 May 2013 10:09:30 -0700 Subject: RDMA/ucma: Name changes to indicate only IP addresses supported Several commands into the RDMA CM from user space are restricted to supporting addresses which fit into a sockaddr_in6 structure: bind address, resolve address, and join multicast. With the addition of AF_IB, we need to support addresses which are larger than sockaddr_in6. This will be done by adding new commands that exchange address information using sockaddr_storage. However, to support existing applications, we maintain the current commands and structures, but rename them to indicate that they only support IPv4 and v6 addresses. Signed-off-by: Sean Hefty Signed-off-by: Roland Dreier --- include/uapi/rdma/rdma_user_cm.h | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) (limited to 'include') diff --git a/include/uapi/rdma/rdma_user_cm.h b/include/uapi/rdma/rdma_user_cm.h index ea79253ceb13..79f68f7c9fd2 100644 --- a/include/uapi/rdma/rdma_user_cm.h +++ b/include/uapi/rdma/rdma_user_cm.h @@ -45,8 +45,8 @@ enum { RDMA_USER_CM_CMD_CREATE_ID, RDMA_USER_CM_CMD_DESTROY_ID, - RDMA_USER_CM_CMD_BIND_ADDR, - RDMA_USER_CM_CMD_RESOLVE_ADDR, + RDMA_USER_CM_CMD_BIND_IP, + RDMA_USER_CM_CMD_RESOLVE_IP, RDMA_USER_CM_CMD_RESOLVE_ROUTE, RDMA_USER_CM_CMD_QUERY_ROUTE, RDMA_USER_CM_CMD_CONNECT, @@ -59,7 +59,7 @@ enum { RDMA_USER_CM_CMD_GET_OPTION, RDMA_USER_CM_CMD_SET_OPTION, RDMA_USER_CM_CMD_NOTIFY, - RDMA_USER_CM_CMD_JOIN_MCAST, + RDMA_USER_CM_CMD_JOIN_IP_MCAST, RDMA_USER_CM_CMD_LEAVE_MCAST, RDMA_USER_CM_CMD_MIGRATE_ID, RDMA_USER_CM_CMD_QUERY @@ -96,13 +96,13 @@ struct rdma_ucm_destroy_id_resp { __u32 events_reported; }; -struct rdma_ucm_bind_addr { +struct rdma_ucm_bind_ip { __u64 response; struct sockaddr_in6 addr; __u32 id; }; -struct rdma_ucm_resolve_addr { +struct rdma_ucm_resolve_ip { struct sockaddr_in6 src_addr; struct sockaddr_in6 dst_addr; __u32 id; @@ -216,7 +216,7 @@ struct rdma_ucm_notify { __u32 event; }; -struct rdma_ucm_join_mcast { +struct rdma_ucm_join_ip_mcast { __u64 response; /* rdma_ucm_create_id_resp */ __u64 uid; struct sockaddr_in6 addr; -- cgit v1.2.1 From eebe4c3a62aadb64ba30bde97b96d656e369d934 Mon Sep 17 00:00:00 2001 From: Sean Hefty Date: Wed, 29 May 2013 10:09:31 -0700 Subject: RDMA/ucma: Allow user space to bind to AF_IB Support user space binding to addresses using AF_IB. Since sockaddr_ib is larger than sockaddr_in6, we need to define a larger structure when binding using AF_IB. This time we use sockaddr_storage to cover future cases. Signed-off-by: Sean Hefty Signed-off-by: Roland Dreier --- include/uapi/rdma/rdma_user_cm.h | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/include/uapi/rdma/rdma_user_cm.h b/include/uapi/rdma/rdma_user_cm.h index 79f68f7c9fd2..895a427bfc91 100644 --- a/include/uapi/rdma/rdma_user_cm.h +++ b/include/uapi/rdma/rdma_user_cm.h @@ -62,7 +62,8 @@ enum { RDMA_USER_CM_CMD_JOIN_IP_MCAST, RDMA_USER_CM_CMD_LEAVE_MCAST, RDMA_USER_CM_CMD_MIGRATE_ID, - RDMA_USER_CM_CMD_QUERY + RDMA_USER_CM_CMD_QUERY, + RDMA_USER_CM_CMD_BIND }; /* @@ -102,6 +103,13 @@ struct rdma_ucm_bind_ip { __u32 id; }; +struct rdma_ucm_bind { + __u32 id; + __u16 addr_size; + __u16 reserved; + struct sockaddr_storage addr; +}; + struct rdma_ucm_resolve_ip { struct sockaddr_in6 src_addr; struct sockaddr_in6 dst_addr; -- cgit v1.2.1 From 209cf2a751f9ff2a516102339e54fcac0176fa78 Mon Sep 17 00:00:00 2001 From: Sean Hefty Date: Wed, 29 May 2013 10:09:32 -0700 Subject: RDMA/ucma: Allow user space to pass AF_IB into resolve Allow user space applications to call resolve_addr using AF_IB. To support sockaddr_ib, we need to define a new structure capable of handling the larger address size. Signed-off-by: Sean Hefty Signed-off-by: Roland Dreier --- include/uapi/rdma/rdma_user_cm.h | 13 ++++++++++++- 1 file changed, 12 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/include/uapi/rdma/rdma_user_cm.h b/include/uapi/rdma/rdma_user_cm.h index 895a427bfc91..6d03f9c16f1e 100644 --- a/include/uapi/rdma/rdma_user_cm.h +++ b/include/uapi/rdma/rdma_user_cm.h @@ -63,7 +63,8 @@ enum { RDMA_USER_CM_CMD_LEAVE_MCAST, RDMA_USER_CM_CMD_MIGRATE_ID, RDMA_USER_CM_CMD_QUERY, - RDMA_USER_CM_CMD_BIND + RDMA_USER_CM_CMD_BIND, + RDMA_USER_CM_CMD_RESOLVE_ADDR }; /* @@ -117,6 +118,16 @@ struct rdma_ucm_resolve_ip { __u32 timeout_ms; }; +struct rdma_ucm_resolve_addr { + __u32 id; + __u32 timeout_ms; + __u16 src_size; + __u16 dst_size; + __u32 reserved; + struct sockaddr_storage src_addr; + struct sockaddr_storage dst_addr; +}; + struct rdma_ucm_resolve_route { __u32 id; __u32 timeout_ms; -- cgit v1.2.1 From 5bc2b7b397b02026a0596a7807443a18422733fa Mon Sep 17 00:00:00 2001 From: Sean Hefty Date: Wed, 29 May 2013 10:09:33 -0700 Subject: RDMA/ucma: Allow user space to specify AF_IB when joining multicast Allow user space applications to join multicast groups using MGIDs directly. MGIDs may be passed using AF_IB addresses. Since the current multicast join command only supports addresses as large as sockaddr_in6, define a new structure for joining addresses specified using sockaddr_ib. Since AF_IB allows the user to specify the qkey when resolving a remote UD QP address, when joining the multicast group use the qkey value, if one has been assigned. Signed-off-by: Sean Hefty Signed-off-by: Roland Dreier --- include/uapi/rdma/rdma_user_cm.h | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/include/uapi/rdma/rdma_user_cm.h b/include/uapi/rdma/rdma_user_cm.h index 6d03f9c16f1e..99b80abf360a 100644 --- a/include/uapi/rdma/rdma_user_cm.h +++ b/include/uapi/rdma/rdma_user_cm.h @@ -64,7 +64,8 @@ enum { RDMA_USER_CM_CMD_MIGRATE_ID, RDMA_USER_CM_CMD_QUERY, RDMA_USER_CM_CMD_BIND, - RDMA_USER_CM_CMD_RESOLVE_ADDR + RDMA_USER_CM_CMD_RESOLVE_ADDR, + RDMA_USER_CM_CMD_JOIN_MCAST }; /* @@ -242,6 +243,15 @@ struct rdma_ucm_join_ip_mcast { __u32 id; }; +struct rdma_ucm_join_mcast { + __u64 response; /* rdma_ucma_create_id_resp */ + __u64 uid; + __u32 id; + __u16 addr_size; + __u16 reserved; + struct sockaddr_storage addr; +}; + struct rdma_ucm_get_event { __u64 response; }; -- cgit v1.2.1 From 6ec19898ed6990baa285b8c96a8b1a0d0366bc46 Mon Sep 17 00:00:00 2001 From: Hans Verkuil Date: Sun, 26 May 2013 08:24:00 -0300 Subject: [media] v4l2: remove obsolete v4l2_chip_match_host() This function is no longer needed since it is now the responsibility of the v4l2 core to check if the DBG_G/S_REGISTER and DBG_G_CHIP_INFO ioctls are called for the bridge driver or not. Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- include/media/v4l2-common.h | 1 - 1 file changed, 1 deletion(-) (limited to 'include') diff --git a/include/media/v4l2-common.h b/include/media/v4l2-common.h index 1d93c48cb371..e7821fb3cd86 100644 --- a/include/media/v4l2-common.h +++ b/include/media/v4l2-common.h @@ -106,7 +106,6 @@ struct i2c_client; /* forward reference */ int v4l2_chip_match_i2c_client(struct i2c_client *c, const struct v4l2_dbg_match *match); int v4l2_chip_ident_i2c_client(struct i2c_client *c, struct v4l2_dbg_chip_ident *chip, u32 ident, u32 revision); -int v4l2_chip_match_host(const struct v4l2_dbg_match *match); /* ------------------------------------------------------------------------- */ -- cgit v1.2.1 From aee38734d2e2a908c4fd50918f28f19c088abfb9 Mon Sep 17 00:00:00 2001 From: Hans Verkuil Date: Sun, 26 May 2013 10:01:42 -0300 Subject: [media] v4l2-common: remove unused v4l2_chip_match/ident_i2c_client functions Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- include/media/v4l2-common.h | 9 --------- 1 file changed, 9 deletions(-) (limited to 'include') diff --git a/include/media/v4l2-common.h b/include/media/v4l2-common.h index e7821fb3cd86..015ff82da73c 100644 --- a/include/media/v4l2-common.h +++ b/include/media/v4l2-common.h @@ -100,15 +100,6 @@ u32 v4l2_ctrl_next(const u32 * const *ctrl_classes, u32 id); /* ------------------------------------------------------------------------- */ -/* Register/chip ident helper function */ - -struct i2c_client; /* forward reference */ -int v4l2_chip_match_i2c_client(struct i2c_client *c, const struct v4l2_dbg_match *match); -int v4l2_chip_ident_i2c_client(struct i2c_client *c, struct v4l2_dbg_chip_ident *chip, - u32 ident, u32 revision); - -/* ------------------------------------------------------------------------- */ - /* I2C Helper functions */ struct i2c_driver; -- cgit v1.2.1 From 12869145718571ffa4f6e650a6f759934eeca0d9 Mon Sep 17 00:00:00 2001 From: Hans Verkuil Date: Sun, 26 May 2013 09:33:00 -0300 Subject: [media] v4l2-int-device: remove unused chip_ident reference Signed-off-by: Hans Verkuil Cc: Mauro Carvalho Chehab Signed-off-by: Mauro Carvalho Chehab --- include/media/v4l2-int-device.h | 3 --- 1 file changed, 3 deletions(-) (limited to 'include') diff --git a/include/media/v4l2-int-device.h b/include/media/v4l2-int-device.h index e6aa2318367b..0286c95814ff 100644 --- a/include/media/v4l2-int-device.h +++ b/include/media/v4l2-int-device.h @@ -220,8 +220,6 @@ enum v4l2_int_ioctl_num { vidioc_int_reset_num, /* VIDIOC_INT_INIT */ vidioc_int_init_num, - /* VIDIOC_DBG_G_CHIP_IDENT */ - vidioc_int_g_chip_ident_num, /* * @@ -303,6 +301,5 @@ V4L2_INT_WRAPPER_1(enum_frameintervals, struct v4l2_frmivalenum, *); V4L2_INT_WRAPPER_0(reset); V4L2_INT_WRAPPER_0(init); -V4L2_INT_WRAPPER_1(g_chip_ident, int, *); #endif -- cgit v1.2.1 From b71c99801e18eb172ae34851daf25044a3bf644a Mon Sep 17 00:00:00 2001 From: Hans Verkuil Date: Sun, 26 May 2013 10:03:01 -0300 Subject: [media] v4l2-core: remove support for obsolete VIDIOC_DBG_G_CHIP_IDENT This has been replaced by the new and much better VIDIOC_DBG_G_CHIP_INFO. Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- include/media/v4l2-chip-ident.h | 354 ---------------------------------------- include/media/v4l2-ioctl.h | 2 - include/media/v4l2-subdev.h | 4 +- include/uapi/linux/videodev2.h | 17 +- 4 files changed, 4 insertions(+), 373 deletions(-) delete mode 100644 include/media/v4l2-chip-ident.h (limited to 'include') diff --git a/include/media/v4l2-chip-ident.h b/include/media/v4l2-chip-ident.h deleted file mode 100644 index 543f89c18896..000000000000 --- a/include/media/v4l2-chip-ident.h +++ /dev/null @@ -1,354 +0,0 @@ -/* - v4l2 chip identifiers header - - This header provides a list of chip identifiers that can be returned - through the VIDIOC_DBG_G_CHIP_IDENT ioctl. - - Copyright (C) 2007 Hans Verkuil - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - */ - -#ifndef V4L2_CHIP_IDENT_H_ -#define V4L2_CHIP_IDENT_H_ - -/* VIDIOC_DBG_G_CHIP_IDENT: identifies the actual chip installed on the board */ - -/* KEEP THIS LIST ORDERED BY ID! - Otherwise it will be hard to see which ranges are already in use when - adding support to a new chip family. */ -enum { - /* general idents: reserved range 0-49 */ - V4L2_IDENT_NONE = 0, /* No chip matched */ - V4L2_IDENT_AMBIGUOUS = 1, /* Match too general, multiple chips matched */ - V4L2_IDENT_UNKNOWN = 2, /* Chip found, but cannot identify */ - - /* module tvaudio: reserved range 50-99 */ - V4L2_IDENT_TVAUDIO = 50, /* A tvaudio chip, unknown which it is exactly */ - - /* Sony IMX074 */ - V4L2_IDENT_IMX074 = 74, - - /* module saa7110: just ident 100 */ - V4L2_IDENT_SAA7110 = 100, - - /* module saa7115: reserved range 101-149 */ - V4L2_IDENT_SAA7111 = 101, - V4L2_IDENT_SAA7111A = 102, - V4L2_IDENT_SAA7113 = 103, - V4L2_IDENT_SAA7114 = 104, - V4L2_IDENT_SAA7115 = 105, - V4L2_IDENT_SAA7118 = 108, - - V4L2_IDENT_GM7113C = 140, - - /* module saa7127: reserved range 150-199 */ - V4L2_IDENT_SAA7127 = 157, - V4L2_IDENT_SAA7129 = 159, - - /* module cx25840: reserved range 200-249 */ - V4L2_IDENT_CX25836 = 236, - V4L2_IDENT_CX25837 = 237, - V4L2_IDENT_CX25840 = 240, - V4L2_IDENT_CX25841 = 241, - V4L2_IDENT_CX25842 = 242, - V4L2_IDENT_CX25843 = 243, - - /* OmniVision sensors: reserved range 250-299 */ - V4L2_IDENT_OV7670 = 250, - V4L2_IDENT_OV7720 = 251, - V4L2_IDENT_OV7725 = 252, - V4L2_IDENT_OV7660 = 253, - V4L2_IDENT_OV9650 = 254, - V4L2_IDENT_OV9655 = 255, - V4L2_IDENT_SOI968 = 256, - V4L2_IDENT_OV9640 = 257, - V4L2_IDENT_OV6650 = 258, - V4L2_IDENT_OV2640 = 259, - V4L2_IDENT_OV9740 = 260, - V4L2_IDENT_OV5642 = 261, - - /* module saa7146: reserved range 300-309 */ - V4L2_IDENT_SAA7146 = 300, - - /* Conexant MPEG encoder/decoders: reserved range 400-420 */ - V4L2_IDENT_CX23418_843 = 403, /* Integrated A/V Decoder on the '418 */ - V4L2_IDENT_CX23415 = 415, - V4L2_IDENT_CX23416 = 416, - V4L2_IDENT_CX23417 = 417, - V4L2_IDENT_CX23418 = 418, - - /* module bt819: reserved range 810-819 */ - V4L2_IDENT_BT815A = 815, - V4L2_IDENT_BT817A = 817, - V4L2_IDENT_BT819A = 819, - - /* module au0828 */ - V4L2_IDENT_AU0828 = 828, - - /* module bttv: ident 848 + 849 */ - V4L2_IDENT_BT848 = 848, - V4L2_IDENT_BT849 = 849, - - /* module bt856: just ident 856 */ - V4L2_IDENT_BT856 = 856, - - /* module bt866: just ident 866 */ - V4L2_IDENT_BT866 = 866, - - /* module bttv: ident 878 + 879 */ - V4L2_IDENT_BT878 = 878, - V4L2_IDENT_BT879 = 879, - - /* module ks0127: reserved range 1120-1129 */ - V4L2_IDENT_KS0122S = 1122, - V4L2_IDENT_KS0127 = 1127, - V4L2_IDENT_KS0127B = 1128, - - /* module indycam: just ident 2000 */ - V4L2_IDENT_INDYCAM = 2000, - - /* module vp27smpx: just ident 2700 */ - V4L2_IDENT_VP27SMPX = 2700, - - /* module vpx3220: reserved range: 3210-3229 */ - V4L2_IDENT_VPX3214C = 3214, - V4L2_IDENT_VPX3216B = 3216, - V4L2_IDENT_VPX3220A = 3220, - - /* VX855 just ident 3409 */ - /* Other via devs could use 3314, 3324, 3327, 3336, 3364, 3353 */ - V4L2_IDENT_VIA_VX855 = 3409, - - /* module tvp5150 */ - V4L2_IDENT_TVP5150 = 5150, - - /* module saa5246a: just ident 5246 */ - V4L2_IDENT_SAA5246A = 5246, - - /* module saa5249: just ident 5249 */ - V4L2_IDENT_SAA5249 = 5249, - - /* module cs5345: just ident 5345 */ - V4L2_IDENT_CS5345 = 5345, - - /* module tea6415c: just ident 6415 */ - V4L2_IDENT_TEA6415C = 6415, - - /* module tea6420: just ident 6420 */ - V4L2_IDENT_TEA6420 = 6420, - - /* module saa6588: just ident 6588 */ - V4L2_IDENT_SAA6588 = 6588, - - /* module vs6624: just ident 6624 */ - V4L2_IDENT_VS6624 = 6624, - - /* module saa6752hs: reserved range 6750-6759 */ - V4L2_IDENT_SAA6752HS = 6752, - V4L2_IDENT_SAA6752HS_AC3 = 6753, - - /* modules tef6862: just ident 6862 */ - V4L2_IDENT_TEF6862 = 6862, - - /* module tvp7002: just ident 7002 */ - V4L2_IDENT_TVP7002 = 7002, - - /* module adv7170: just ident 7170 */ - V4L2_IDENT_ADV7170 = 7170, - - /* module adv7175: just ident 7175 */ - V4L2_IDENT_ADV7175 = 7175, - - /* module adv7180: just ident 7180 */ - V4L2_IDENT_ADV7180 = 7180, - - /* module adv7183: just ident 7183 */ - V4L2_IDENT_ADV7183 = 7183, - - /* module saa7185: just ident 7185 */ - V4L2_IDENT_SAA7185 = 7185, - - /* module saa7191: just ident 7191 */ - V4L2_IDENT_SAA7191 = 7191, - - /* module ths7303: just ident 7303 */ - V4L2_IDENT_THS7303 = 7303, - - /* module adv7343: just ident 7343 */ - V4L2_IDENT_ADV7343 = 7343, - - /* module ths7353: just ident 7353 */ - V4L2_IDENT_THS7353 = 7353, - - /* module adv7393: just ident 7393 */ - V4L2_IDENT_ADV7393 = 7393, - - /* module adv7604: just ident 7604 */ - V4L2_IDENT_ADV7604 = 7604, - - /* module saa7706h: just ident 7706 */ - V4L2_IDENT_SAA7706H = 7706, - - /* module mt9v011, just ident 8243 */ - V4L2_IDENT_MT9V011 = 8243, - - /* module wm8739: just ident 8739 */ - V4L2_IDENT_WM8739 = 8739, - - /* module wm8775: just ident 8775 */ - V4L2_IDENT_WM8775 = 8775, - - /* Marvell controllers starting at 8801 */ - V4L2_IDENT_CAFE = 8801, - V4L2_IDENT_ARMADA610 = 8802, - - /* AKM AK8813/AK8814 */ - V4L2_IDENT_AK8813 = 8813, - V4L2_IDENT_AK8814 = 8814, - - /* module cx23885 and cx25840 */ - V4L2_IDENT_CX23885 = 8850, - V4L2_IDENT_CX23885_AV = 8851, /* Integrated A/V decoder */ - V4L2_IDENT_CX23887 = 8870, - V4L2_IDENT_CX23887_AV = 8871, /* Integrated A/V decoder */ - V4L2_IDENT_CX23888 = 8880, - V4L2_IDENT_CX23888_AV = 8881, /* Integrated A/V decoder */ - V4L2_IDENT_CX23888_IR = 8882, /* Integrated infrared controller */ - - /* module ad9389b: just ident 9389 */ - V4L2_IDENT_AD9389B = 9389, - - /* module tda9840: just ident 9840 */ - V4L2_IDENT_TDA9840 = 9840, - - /* module tw9910: just ident 9910 */ - V4L2_IDENT_TW9910 = 9910, - - /* module sn9c20x: just ident 10000 */ - V4L2_IDENT_SN9C20X = 10000, - - /* module cx231xx and cx25840 */ - V4L2_IDENT_CX2310X_AV = 23099, /* Integrated A/V decoder; not in '100 */ - V4L2_IDENT_CX23100 = 23100, - V4L2_IDENT_CX23101 = 23101, - V4L2_IDENT_CX23102 = 23102, - - /* module msp3400: reserved range 34000-34999 for msp34xx */ - V4L2_IDENT_MSPX4XX = 34000, /* generic MSPX4XX identifier, only - use internally (tveeprom.c). */ - - V4L2_IDENT_MSP3400B = 34002, - V4L2_IDENT_MSP3400C = 34003, - V4L2_IDENT_MSP3400D = 34004, - V4L2_IDENT_MSP3400G = 34007, - V4L2_IDENT_MSP3401G = 34017, - V4L2_IDENT_MSP3402G = 34027, - V4L2_IDENT_MSP3405D = 34054, - V4L2_IDENT_MSP3405G = 34057, - V4L2_IDENT_MSP3407D = 34074, - V4L2_IDENT_MSP3407G = 34077, - - V4L2_IDENT_MSP3410B = 34102, - V4L2_IDENT_MSP3410C = 34103, - V4L2_IDENT_MSP3410D = 34104, - V4L2_IDENT_MSP3410G = 34107, - V4L2_IDENT_MSP3411G = 34117, - V4L2_IDENT_MSP3412G = 34127, - V4L2_IDENT_MSP3415D = 34154, - V4L2_IDENT_MSP3415G = 34157, - V4L2_IDENT_MSP3417D = 34174, - V4L2_IDENT_MSP3417G = 34177, - - V4L2_IDENT_MSP3420G = 34207, - V4L2_IDENT_MSP3421G = 34217, - V4L2_IDENT_MSP3422G = 34227, - V4L2_IDENT_MSP3425G = 34257, - V4L2_IDENT_MSP3427G = 34277, - - V4L2_IDENT_MSP3430G = 34307, - V4L2_IDENT_MSP3431G = 34317, - V4L2_IDENT_MSP3435G = 34357, - V4L2_IDENT_MSP3437G = 34377, - - V4L2_IDENT_MSP3440G = 34407, - V4L2_IDENT_MSP3441G = 34417, - V4L2_IDENT_MSP3442G = 34427, - V4L2_IDENT_MSP3445G = 34457, - V4L2_IDENT_MSP3447G = 34477, - - V4L2_IDENT_MSP3450G = 34507, - V4L2_IDENT_MSP3451G = 34517, - V4L2_IDENT_MSP3452G = 34527, - V4L2_IDENT_MSP3455G = 34557, - V4L2_IDENT_MSP3457G = 34577, - - V4L2_IDENT_MSP3460G = 34607, - V4L2_IDENT_MSP3461G = 34617, - V4L2_IDENT_MSP3465G = 34657, - V4L2_IDENT_MSP3467G = 34677, - - /* module msp3400: reserved range 44000-44999 for msp44xx */ - V4L2_IDENT_MSP4400G = 44007, - V4L2_IDENT_MSP4408G = 44087, - V4L2_IDENT_MSP4410G = 44107, - V4L2_IDENT_MSP4418G = 44187, - V4L2_IDENT_MSP4420G = 44207, - V4L2_IDENT_MSP4428G = 44287, - V4L2_IDENT_MSP4440G = 44407, - V4L2_IDENT_MSP4448G = 44487, - V4L2_IDENT_MSP4450G = 44507, - V4L2_IDENT_MSP4458G = 44587, - - /* Micron CMOS sensor chips: 45000-45099 */ - V4L2_IDENT_MT9M001C12ST = 45000, - V4L2_IDENT_MT9M001C12STM = 45005, - V4L2_IDENT_MT9M111 = 45007, - V4L2_IDENT_MT9M112 = 45008, - V4L2_IDENT_MT9V022IX7ATC = 45010, /* No way to detect "normal" I77ATx */ - V4L2_IDENT_MT9V022IX7ATM = 45015, /* and "lead free" IA7ATx chips */ - V4L2_IDENT_MT9T031 = 45020, - V4L2_IDENT_MT9T111 = 45021, - V4L2_IDENT_MT9T112 = 45022, - V4L2_IDENT_MT9V111 = 45031, - V4L2_IDENT_MT9V112 = 45032, - - /* HV7131R CMOS sensor: just ident 46000 */ - V4L2_IDENT_HV7131R = 46000, - - /* Sharp RJ54N1CB0C, 0xCB0C = 51980 */ - V4L2_IDENT_RJ54N1CB0C = 51980, - - /* module m52790: just ident 52790 */ - V4L2_IDENT_M52790 = 52790, - - /* module cs53132a: just ident 53132 */ - V4L2_IDENT_CS53l32A = 53132, - - /* modules upd61151 MPEG2 encoder: just ident 54000 */ - V4L2_IDENT_UPD61161 = 54000, - /* modules upd61152 MPEG2 encoder with AC3: just ident 54001 */ - V4L2_IDENT_UPD61162 = 54001, - - /* module upd64031a: just ident 64031 */ - V4L2_IDENT_UPD64031A = 64031, - - /* module upd64083: just ident 64083 */ - V4L2_IDENT_UPD64083 = 64083, - - /* Don't just add new IDs at the end: KEEP THIS LIST ORDERED BY ID! */ -}; - -#endif diff --git a/include/media/v4l2-ioctl.h b/include/media/v4l2-ioctl.h index 931652f0e2af..e0b74a430b3a 100644 --- a/include/media/v4l2-ioctl.h +++ b/include/media/v4l2-ioctl.h @@ -247,8 +247,6 @@ struct v4l2_ioctl_ops { int (*vidioc_g_chip_info) (struct file *file, void *fh, struct v4l2_dbg_chip_info *chip); #endif - int (*vidioc_g_chip_ident) (struct file *file, void *fh, - struct v4l2_dbg_chip_ident *chip); int (*vidioc_enum_framesizes) (struct file *file, void *fh, struct v4l2_frmsizeenum *fsize); diff --git a/include/media/v4l2-subdev.h b/include/media/v4l2-subdev.h index 5298d678d0f3..21fc9e16d7be 100644 --- a/include/media/v4l2-subdev.h +++ b/include/media/v4l2-subdev.h @@ -88,7 +88,6 @@ struct v4l2_decode_vbi_line { /* Core ops: it is highly recommended to implement at least these ops: - g_chip_ident log_status g_register s_register @@ -145,7 +144,6 @@ struct v4l2_subdev_io_pin_config { performed later. It must not sleep. *Called from an IRQ context*. */ struct v4l2_subdev_core_ops { - int (*g_chip_ident)(struct v4l2_subdev *sd, struct v4l2_dbg_chip_ident *chip); int (*log_status)(struct v4l2_subdev *sd); int (*s_io_pin_config)(struct v4l2_subdev *sd, size_t n, struct v4l2_subdev_io_pin_config *pincfg); @@ -660,7 +658,7 @@ void v4l2_subdev_init(struct v4l2_subdev *sd, /* Call an ops of a v4l2_subdev, doing the right checks against NULL pointers. - Example: err = v4l2_subdev_call(sd, core, g_chip_ident, &chip); + Example: err = v4l2_subdev_call(sd, core, s_std, norm); */ #define v4l2_subdev_call(sd, o, f, args...) \ (!(sd) ? -ENODEV : (((sd)->ops->o && (sd)->ops->o->f) ? \ diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h index 2c5e67a45436..95ef4551edc1 100644 --- a/include/uapi/linux/videodev2.h +++ b/include/uapi/linux/videodev2.h @@ -1787,11 +1787,13 @@ struct v4l2_event_subscription { /* VIDIOC_DBG_G_REGISTER and VIDIOC_DBG_S_REGISTER */ #define V4L2_CHIP_MATCH_BRIDGE 0 /* Match against chip ID on the bridge (0 for the bridge) */ +#define V4L2_CHIP_MATCH_SUBDEV 4 /* Match against subdev index */ + +/* The following four defines are no longer in use */ #define V4L2_CHIP_MATCH_HOST V4L2_CHIP_MATCH_BRIDGE #define V4L2_CHIP_MATCH_I2C_DRIVER 1 /* Match against I2C driver name */ #define V4L2_CHIP_MATCH_I2C_ADDR 2 /* Match against I2C 7-bit address */ #define V4L2_CHIP_MATCH_AC97 3 /* Match against ancillary AC97 chip */ -#define V4L2_CHIP_MATCH_SUBDEV 4 /* Match against subdev index */ struct v4l2_dbg_match { __u32 type; /* Match type */ @@ -1808,13 +1810,6 @@ struct v4l2_dbg_register { __u64 val; } __attribute__ ((packed)); -/* VIDIOC_DBG_G_CHIP_IDENT */ -struct v4l2_dbg_chip_ident { - struct v4l2_dbg_match match; - __u32 ident; /* chip identifier as specified in */ - __u32 revision; /* chip revision, chip specific */ -} __attribute__ ((packed)); - #define V4L2_CHIP_FL_READABLE (1 << 0) #define V4L2_CHIP_FL_WRITABLE (1 << 1) @@ -1915,12 +1910,6 @@ struct v4l2_create_buffers { #define VIDIOC_DBG_S_REGISTER _IOW('V', 79, struct v4l2_dbg_register) #define VIDIOC_DBG_G_REGISTER _IOWR('V', 80, struct v4l2_dbg_register) -/* Experimental, meant for debugging, testing and internal use. - Never use this ioctl in applications! - Note: this ioctl is deprecated in favor of VIDIOC_DBG_G_CHIP_INFO and - will go away in the future. */ -#define VIDIOC_DBG_G_CHIP_IDENT _IOWR('V', 81, struct v4l2_dbg_chip_ident) - #define VIDIOC_S_HW_FREQ_SEEK _IOW('V', 82, struct v4l2_hw_freq_seek) #define VIDIOC_S_DV_TIMINGS _IOWR('V', 87, struct v4l2_dv_timings) -- cgit v1.2.1 From 14381c26771f1a7d6acc57e4c944a9813596e6cf Mon Sep 17 00:00:00 2001 From: Hans Verkuil Date: Mon, 10 Jun 2013 09:27:41 -0300 Subject: [media] soc_camera: replace vdev->parent by vdev->v4l2_dev The parent field will eventually disappear to be replaced by v4l2_dev. soc_camera does provide a v4l2_device struct but did not point to it in struct video_device. This is now fixed. Now the video nodes can be found under the correct platform bus, and the advanced debug ioctls work correctly as well (the core implementation of those ioctls requires that v4l2_dev is set correctly). Signed-off-by: Hans Verkuil Acked-by: Guennadi Liakhovetski Signed-off-by: Mauro Carvalho Chehab --- include/media/soc_camera.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/include/media/soc_camera.h b/include/media/soc_camera.h index ff77d08c30fd..31a4bfe42194 100644 --- a/include/media/soc_camera.h +++ b/include/media/soc_camera.h @@ -346,9 +346,9 @@ static inline struct soc_camera_subdev_desc *soc_camera_i2c_to_desc(const struct return client->dev.platform_data; } -static inline struct v4l2_subdev *soc_camera_vdev_to_subdev(const struct video_device *vdev) +static inline struct v4l2_subdev *soc_camera_vdev_to_subdev(struct video_device *vdev) { - struct soc_camera_device *icd = dev_get_drvdata(vdev->parent); + struct soc_camera_device *icd = video_get_drvdata(vdev); return soc_camera_to_subdev(icd); } -- cgit v1.2.1 From 1c1d86a1ea07506c070cfb217a009d53990bdeb0 Mon Sep 17 00:00:00 2001 From: Hans Verkuil Date: Wed, 12 Jun 2013 11:15:12 -0300 Subject: [media] v4l2: always require v4l2_dev, rename parent to dev_parent The last set of drivers still using the parent field of video_device instead of the v4l2_dev field have been converted, so v4l2_dev is now always set. A proper pointer to v4l2_dev is necessary these days otherwise the advanced debugging ioctls will not work when addressing sub-devices. It also ensures that the core can always go from a video_device struct to the top-level v4l2_device struct. There is still one single use case for the parent pointer: if there are multiple busses, each being the parent of one or more video nodes, and if they all share the same v4l2_device struct. In that case one still needs a parent pointer since the v4l2_device struct can only refer to a single parent device. The cx88 driver is one such case. Unfortunately, the cx88 failed to set the parent pointer since 3.6. The next patch will correct this. In order to support this use-case the parent pointer is only renamed to dev_parent, not removed altogether. It has been renamed to ensure that the compiler will catch any (possibly out-of-tree) drivers that were missed during the conversion. Signed-off-by: Hans Verkuil Acked-by: Sakari Ailus Acked-by: Laurent Pinchart Signed-off-by: Mauro Carvalho Chehab --- include/media/v4l2-dev.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/include/media/v4l2-dev.h b/include/media/v4l2-dev.h index b2c3776a1cff..c768c9f8abc2 100644 --- a/include/media/v4l2-dev.h +++ b/include/media/v4l2-dev.h @@ -96,9 +96,9 @@ struct video_device struct device dev; /* v4l device */ struct cdev *cdev; /* character device */ - /* Set either parent or v4l2_dev if your driver uses v4l2_device */ - struct device *parent; /* device parent */ struct v4l2_device *v4l2_dev; /* v4l2_device parent */ + /* Only set parent if that can't be deduced from v4l2_dev */ + struct device *dev_parent; /* device parent */ /* Control handler associated with this device node. May be NULL. */ struct v4l2_ctrl_handler *ctrl_handler; -- cgit v1.2.1 From f7f6ce2d09c86bd80ee11bd654a1ac1e8f5dfe13 Mon Sep 17 00:00:00 2001 From: Guennadi Liakhovetski Date: Thu, 4 Apr 2013 08:21:12 -0300 Subject: [media] soc-camera: move common code to soc_camera.c All soc-camera host drivers include a pointer to an soc-camera device in their host private struct to check, that only one client is connected. Move this common code to soc_camera.c. Signed-off-by: Guennadi Liakhovetski Acked-by: Hans Verkuil Acked-by: Laurent Pinchart Signed-off-by: Mauro Carvalho Chehab --- include/media/soc_camera.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include') diff --git a/include/media/soc_camera.h b/include/media/soc_camera.h index 31a4bfe42194..db23a8f0c26b 100644 --- a/include/media/soc_camera.h +++ b/include/media/soc_camera.h @@ -64,6 +64,7 @@ struct soc_camera_host { struct mutex host_lock; /* Protect pipeline modifications */ unsigned char nr; /* Host number */ u32 capabilities; + struct soc_camera_device *icd; /* Currently attached client */ void *priv; const char *drv_name; struct soc_camera_host_ops *ops; -- cgit v1.2.1 From eb569cf9db804e6ba34b3a1812415e59d5e43d1a Mon Sep 17 00:00:00 2001 From: Guennadi Liakhovetski Date: Thu, 4 Apr 2013 08:51:36 -0300 Subject: [media] soc-camera: add host clock callbacks to start and stop the master clock Currently soc-camera uses a single camera host callback to activate the interface master clock and to configure the interface for a specific client. However, during probing we might not have the information about a client, we just need to activate the clock. Add new camera host driver callbacks to only start and stop the clock without and client-specific configuration. Signed-off-by: Guennadi Liakhovetski Acked-by: Hans Verkuil Acked-by: Laurent Pinchart Signed-off-by: Mauro Carvalho Chehab --- include/media/soc_camera.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include') diff --git a/include/media/soc_camera.h b/include/media/soc_camera.h index db23a8f0c26b..dfa24df960df 100644 --- a/include/media/soc_camera.h +++ b/include/media/soc_camera.h @@ -74,6 +74,8 @@ struct soc_camera_host_ops { struct module *owner; int (*add)(struct soc_camera_device *); void (*remove)(struct soc_camera_device *); + int (*clock_start)(struct soc_camera_host *); + void (*clock_stop)(struct soc_camera_host *); /* * .get_formats() is called for each client device format, but * .put_formats() is only called once. Further, if any of the calls to -- cgit v1.2.1 From ff5430de70e8137daccecfa1211509f95fcc8d25 Mon Sep 17 00:00:00 2001 From: Guennadi Liakhovetski Date: Tue, 4 Dec 2012 07:42:15 -0300 Subject: [media] V4L2: add temporary clock helpers Typical video devices like camera sensors require an external clock source. Many such devices cannot even access their hardware registers without a running clock. These clock sources should be controlled by their consumers. This should be performed, using the generic clock framework. Unfortunately so far only very few systems have been ported to that framework. This patch adds a set of temporary helpers, mimicking the generic clock API, to V4L2. Platforms, adopting the clock API, should switch to using it. Eventually this temporary API should be removed. Signed-off-by: Guennadi Liakhovetski Acked-by: Hans Verkuil Acked-by: Laurent Pinchart Signed-off-by: Mauro Carvalho Chehab --- include/media/v4l2-clk.h | 54 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 54 insertions(+) create mode 100644 include/media/v4l2-clk.h (limited to 'include') diff --git a/include/media/v4l2-clk.h b/include/media/v4l2-clk.h new file mode 100644 index 000000000000..0503a90b48bb --- /dev/null +++ b/include/media/v4l2-clk.h @@ -0,0 +1,54 @@ +/* + * V4L2 clock service + * + * Copyright (C) 2012-2013, Guennadi Liakhovetski + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * ATTENTION: This is a temporary API and it shall be replaced by the generic + * clock API, when the latter becomes widely available. + */ + +#ifndef MEDIA_V4L2_CLK_H +#define MEDIA_V4L2_CLK_H + +#include +#include +#include + +struct module; +struct device; + +struct v4l2_clk { + struct list_head list; + const struct v4l2_clk_ops *ops; + const char *dev_id; + const char *id; + int enable; + struct mutex lock; /* Protect the enable count */ + atomic_t use_count; + void *priv; +}; + +struct v4l2_clk_ops { + struct module *owner; + int (*enable)(struct v4l2_clk *clk); + void (*disable)(struct v4l2_clk *clk); + unsigned long (*get_rate)(struct v4l2_clk *clk); + int (*set_rate)(struct v4l2_clk *clk, unsigned long); +}; + +struct v4l2_clk *v4l2_clk_register(const struct v4l2_clk_ops *ops, + const char *dev_name, + const char *name, void *priv); +void v4l2_clk_unregister(struct v4l2_clk *clk); +struct v4l2_clk *v4l2_clk_get(struct device *dev, const char *id); +void v4l2_clk_put(struct v4l2_clk *clk); +int v4l2_clk_enable(struct v4l2_clk *clk); +void v4l2_clk_disable(struct v4l2_clk *clk); +unsigned long v4l2_clk_get_rate(struct v4l2_clk *clk); +int v4l2_clk_set_rate(struct v4l2_clk *clk, unsigned long rate); + +#endif -- cgit v1.2.1 From 668773b84604926519e2baf444f382f88d799d41 Mon Sep 17 00:00:00 2001 From: Guennadi Liakhovetski Date: Mon, 10 Jun 2013 15:07:35 -0300 Subject: [media] V4L2: add a device pointer to struct v4l2_subdev It is often useful to have simple means to get from a subdevice to the underlying physical device. This patch adds such a pointer to struct v4l2_subdev and sets it accordingly in the I2C and SPI cases. Signed-off-by: Guennadi Liakhovetski Acked-by: Hans Verkuil Acked-by: Laurent Pinchart Tested-by: Lad, Prabhakar Signed-off-by: Mauro Carvalho Chehab --- include/media/v4l2-subdev.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include') diff --git a/include/media/v4l2-subdev.h b/include/media/v4l2-subdev.h index 21fc9e16d7be..5fbb266405f9 100644 --- a/include/media/v4l2-subdev.h +++ b/include/media/v4l2-subdev.h @@ -583,6 +583,8 @@ struct v4l2_subdev { void *host_priv; /* subdev device node */ struct video_device *devnode; + /* pointer to the physical device, if any */ + struct device *dev; }; #define media_entity_to_v4l2_subdev(ent) \ -- cgit v1.2.1 From e9e310491bdbc8c0f33ea0e2ce65eff345a01f71 Mon Sep 17 00:00:00 2001 From: Guennadi Liakhovetski Date: Tue, 8 Jan 2013 07:06:31 -0300 Subject: [media] V4L2: support asynchronous subdevice registration Currently bridge device drivers register devices for all subdevices synchronously, typically, during their probing. E.g. if an I2C CMOS sensor is attached to a video bridge device, the bridge driver will create an I2C device and wait for the respective I2C driver to probe. This makes linking of devices straight forward, but this approach cannot be used with intrinsically asynchronous and unordered device registration systems like the Flattened Device Tree. To support such systems this patch adds an asynchronous subdevice registration framework to V4L2. To use it respective (e.g. I2C) subdevice drivers must register themselves with the framework. A bridge driver on the other hand must register notification callbacks, that will be called upon various related events. Signed-off-by: Guennadi Liakhovetski Acked-by: Hans Verkuil Acked-by: Laurent Pinchart Tested-by: Lad, Prabhakar Signed-off-by: Mauro Carvalho Chehab --- include/media/v4l2-async.h | 105 ++++++++++++++++++++++++++++++++++++++++++++ include/media/v4l2-subdev.h | 8 ++++ 2 files changed, 113 insertions(+) create mode 100644 include/media/v4l2-async.h (limited to 'include') diff --git a/include/media/v4l2-async.h b/include/media/v4l2-async.h new file mode 100644 index 000000000000..c3ec6ac75f7e --- /dev/null +++ b/include/media/v4l2-async.h @@ -0,0 +1,105 @@ +/* + * V4L2 asynchronous subdevice registration API + * + * Copyright (C) 2012-2013, Guennadi Liakhovetski + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#ifndef V4L2_ASYNC_H +#define V4L2_ASYNC_H + +#include +#include + +struct device; +struct v4l2_device; +struct v4l2_subdev; +struct v4l2_async_notifier; + +/* A random max subdevice number, used to allocate an array on stack */ +#define V4L2_MAX_SUBDEVS 128U + +enum v4l2_async_bus_type { + V4L2_ASYNC_BUS_CUSTOM, + V4L2_ASYNC_BUS_PLATFORM, + V4L2_ASYNC_BUS_I2C, +}; + +/** + * struct v4l2_async_subdev - sub-device descriptor, as known to a bridge + * @bus_type: subdevice bus type to select the appropriate matching method + * @match: union of per-bus type matching data sets + * @list: used to link struct v4l2_async_subdev objects, waiting to be + * probed, to a notifier->waiting list + */ +struct v4l2_async_subdev { + enum v4l2_async_bus_type bus_type; + union { + struct { + const char *name; + } platform; + struct { + int adapter_id; + unsigned short address; + } i2c; + struct { + bool (*match)(struct device *, + struct v4l2_async_subdev *); + void *priv; + } custom; + } match; + + /* v4l2-async core private: not to be used by drivers */ + struct list_head list; +}; + +/** + * v4l2_async_subdev_list - provided by subdevices + * @list: links struct v4l2_async_subdev_list objects to a global list + * before probing, and onto notifier->done after probing + * @asd: pointer to respective struct v4l2_async_subdev + * @notifier: pointer to managing notifier + */ +struct v4l2_async_subdev_list { + struct list_head list; + struct v4l2_async_subdev *asd; + struct v4l2_async_notifier *notifier; +}; + +/** + * v4l2_async_notifier - v4l2_device notifier data + * @num_subdevs:number of subdevices + * @subdev: array of pointers to subdevice descriptors + * @v4l2_dev: pointer to struct v4l2_device + * @waiting: list of struct v4l2_async_subdev, waiting for their drivers + * @done: list of struct v4l2_async_subdev_list, already probed + * @list: member in a global list of notifiers + * @bound: a subdevice driver has successfully probed one of subdevices + * @complete: all subdevices have been probed successfully + * @unbind: a subdevice is leaving + */ +struct v4l2_async_notifier { + unsigned int num_subdevs; + struct v4l2_async_subdev **subdev; + struct v4l2_device *v4l2_dev; + struct list_head waiting; + struct list_head done; + struct list_head list; + int (*bound)(struct v4l2_async_notifier *notifier, + struct v4l2_subdev *subdev, + struct v4l2_async_subdev *asd); + int (*complete)(struct v4l2_async_notifier *notifier); + void (*unbind)(struct v4l2_async_notifier *notifier, + struct v4l2_subdev *subdev, + struct v4l2_async_subdev *asd); +}; + +int v4l2_async_notifier_register(struct v4l2_device *v4l2_dev, + struct v4l2_async_notifier *notifier); +void v4l2_async_notifier_unregister(struct v4l2_async_notifier *notifier); +int v4l2_async_register_subdev(struct v4l2_subdev *sd); +void v4l2_async_unregister_subdev(struct v4l2_subdev *sd); +#endif diff --git a/include/media/v4l2-subdev.h b/include/media/v4l2-subdev.h index 5fbb266405f9..3250cc5e7925 100644 --- a/include/media/v4l2-subdev.h +++ b/include/media/v4l2-subdev.h @@ -24,6 +24,7 @@ #include #include #include +#include #include #include #include @@ -585,8 +586,15 @@ struct v4l2_subdev { struct video_device *devnode; /* pointer to the physical device, if any */ struct device *dev; + struct v4l2_async_subdev_list asdl; }; +static inline struct v4l2_subdev *v4l2_async_to_subdev( + struct v4l2_async_subdev_list *asdl) +{ + return container_of(asdl, struct v4l2_subdev, asdl); +} + #define media_entity_to_v4l2_subdev(ent) \ container_of(ent, struct v4l2_subdev, entity) #define vdev_to_v4l2_subdev(vdev) \ -- cgit v1.2.1 From 9aea470b399d797e88be08985c489855759c6c60 Mon Sep 17 00:00:00 2001 From: Guennadi Liakhovetski Date: Fri, 21 Dec 2012 13:01:55 -0300 Subject: [media] soc-camera: switch I2C subdevice drivers to use v4l2-clk Instead of centrally enabling and disabling subdevice master clocks in soc-camera core, let subdevice drivers do that themselves, using the V4L2 clock API and soc-camera convenience wrappers. Signed-off-by: Guennadi Liakhovetski Acked-by: Hans Verkuil Acked-by: Laurent Pinchart Signed-off-by: Mauro Carvalho Chehab --- include/media/soc_camera.h | 13 ++++++++----- 1 file changed, 8 insertions(+), 5 deletions(-) (limited to 'include') diff --git a/include/media/soc_camera.h b/include/media/soc_camera.h index dfa24df960df..f582323fafb7 100644 --- a/include/media/soc_camera.h +++ b/include/media/soc_camera.h @@ -49,6 +49,7 @@ struct soc_camera_device { /* soc_camera.c private count. Only accessed with .host_lock held */ int use_count; struct file *streamer; /* stream owner */ + struct v4l2_clk *clk; union { struct videobuf_queue vb_vidq; struct vb2_queue vb2_vidq; @@ -325,14 +326,16 @@ static inline void soc_camera_limit_side(int *start, int *length, unsigned long soc_camera_apply_board_flags(struct soc_camera_subdev_desc *ssdd, const struct v4l2_mbus_config *cfg); -int soc_camera_power_on(struct device *dev, struct soc_camera_subdev_desc *ssdd); -int soc_camera_power_off(struct device *dev, struct soc_camera_subdev_desc *ssdd); +int soc_camera_power_on(struct device *dev, struct soc_camera_subdev_desc *ssdd, + struct v4l2_clk *clk); +int soc_camera_power_off(struct device *dev, struct soc_camera_subdev_desc *ssdd, + struct v4l2_clk *clk); static inline int soc_camera_set_power(struct device *dev, - struct soc_camera_subdev_desc *ssdd, bool on) + struct soc_camera_subdev_desc *ssdd, struct v4l2_clk *clk, bool on) { - return on ? soc_camera_power_on(dev, ssdd) - : soc_camera_power_off(dev, ssdd); + return on ? soc_camera_power_on(dev, ssdd, clk) + : soc_camera_power_off(dev, ssdd, clk); } /* This is only temporary here - until v4l2-subdev begins to link to video_device */ -- cgit v1.2.1 From e09da11da49c6fd625be52d8b60bbbbe225a9db6 Mon Sep 17 00:00:00 2001 From: Guennadi Liakhovetski Date: Wed, 26 Dec 2012 12:44:11 -0300 Subject: [media] soc-camera: add V4L2-async support Add support for asynchronous subdevice probing, using the v4l2-async API. The legacy synchronous mode is still supported too, which allows to gradually update drivers and platforms. The selected approach adds a notifier for each struct soc_camera_device instance, i.e. for each video device node, even when there are multiple such instances registered with a single soc-camera host simultaneously. Signed-off-by: Guennadi Liakhovetski Acked-by: Hans Verkuil Acked-by: Laurent Pinchart Signed-off-by: Mauro Carvalho Chehab --- include/media/soc_camera.h | 23 ++++++++++++++++++++++- 1 file changed, 22 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/include/media/soc_camera.h b/include/media/soc_camera.h index f582323fafb7..906ed98c6e95 100644 --- a/include/media/soc_camera.h +++ b/include/media/soc_camera.h @@ -19,11 +19,13 @@ #include #include #include +#include #include #include struct file; struct soc_camera_desc; +struct soc_camera_async_client; struct soc_camera_device { struct list_head list; /* list of all registered devices */ @@ -50,6 +52,9 @@ struct soc_camera_device { int use_count; struct file *streamer; /* stream owner */ struct v4l2_clk *clk; + /* Asynchronous subdevice management */ + struct soc_camera_async_client *sasc; + /* video buffer queue */ union { struct videobuf_queue vb_vidq; struct vb2_queue vb2_vidq; @@ -59,16 +64,30 @@ struct soc_camera_device { /* Host supports programmable stride */ #define SOCAM_HOST_CAP_STRIDE (1 << 0) +enum soc_camera_subdev_role { + SOCAM_SUBDEV_DATA_SOURCE = 1, + SOCAM_SUBDEV_DATA_SINK, + SOCAM_SUBDEV_DATA_PROCESSOR, +}; + +struct soc_camera_async_subdev { + struct v4l2_async_subdev asd; + enum soc_camera_subdev_role role; +}; + struct soc_camera_host { struct v4l2_device v4l2_dev; struct list_head list; - struct mutex host_lock; /* Protect pipeline modifications */ + struct mutex host_lock; /* Main synchronisation lock */ + struct mutex clk_lock; /* Protect pipeline modifications */ unsigned char nr; /* Host number */ u32 capabilities; struct soc_camera_device *icd; /* Currently attached client */ void *priv; const char *drv_name; struct soc_camera_host_ops *ops; + struct v4l2_async_subdev **asd; /* Flat array, arranged in groups */ + int *asd_sizes; /* 0-terminated array of asd group sizes */ }; struct soc_camera_host_ops { @@ -161,6 +180,7 @@ struct soc_camera_host_desc { }; /* + * Platform data for "soc-camera-pdrv" * This MUST be kept binary-identical to struct soc_camera_link below, until * it is completely replaced by this one, after which we can split it into its * two components. @@ -326,6 +346,7 @@ static inline void soc_camera_limit_side(int *start, int *length, unsigned long soc_camera_apply_board_flags(struct soc_camera_subdev_desc *ssdd, const struct v4l2_mbus_config *cfg); +int soc_camera_power_init(struct device *dev, struct soc_camera_subdev_desc *ssdd); int soc_camera_power_on(struct device *dev, struct soc_camera_subdev_desc *ssdd, struct v4l2_clk *clk); int soc_camera_power_off(struct device *dev, struct soc_camera_subdev_desc *ssdd, -- cgit v1.2.1 From 676d2d4f08ccdfab45867aaf1edeeb923b45bdc1 Mon Sep 17 00:00:00 2001 From: Guennadi Liakhovetski Date: Thu, 3 Jan 2013 15:06:35 -0300 Subject: [media] sh_mobile_ceu_camera: add asynchronous subdevice probing support Use the v4l2-async API to support asynchronous subdevice probing, including the CSI2 subdevice. Synchronous probing is still supported too. Signed-off-by: Guennadi Liakhovetski Acked-by: Hans Verkuil Acked-by: Laurent Pinchart Signed-off-by: Mauro Carvalho Chehab --- include/media/sh_mobile_ceu.h | 2 ++ include/media/sh_mobile_csi2.h | 2 +- 2 files changed, 3 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/include/media/sh_mobile_ceu.h b/include/media/sh_mobile_ceu.h index 6fdb6adf6b2b..8937241e5f37 100644 --- a/include/media/sh_mobile_ceu.h +++ b/include/media/sh_mobile_ceu.h @@ -22,6 +22,8 @@ struct sh_mobile_ceu_info { int max_width; int max_height; struct sh_mobile_ceu_companion *csi2; + struct v4l2_async_subdev **asd; /* Flat array, arranged in groups */ + int *asd_sizes; /* 0-terminated array pf asd group sizes */ }; #endif /* __ASM_SH_MOBILE_CEU_H__ */ diff --git a/include/media/sh_mobile_csi2.h b/include/media/sh_mobile_csi2.h index c586c4f7f16b..14030db51f13 100644 --- a/include/media/sh_mobile_csi2.h +++ b/include/media/sh_mobile_csi2.h @@ -33,6 +33,7 @@ struct sh_csi2_client_config { unsigned char lanes; /* bitmask[3:0] */ unsigned char channel; /* 0..3 */ struct platform_device *pdev; /* client platform device */ + const char *name; /* async matching: client name */ }; struct v4l2_device; @@ -42,7 +43,6 @@ struct sh_csi2_pdata { unsigned int flags; struct sh_csi2_client_config *clients; int num_clients; - struct v4l2_device *v4l2_dev; }; #endif -- cgit v1.2.1 From f687f3263e99e34289e076352fad23974ee072ab Mon Sep 17 00:00:00 2001 From: Guennadi Liakhovetski Date: Mon, 24 Jun 2013 05:19:19 -0300 Subject: [media] V4L2: soc-camera: fix uninitialised use compiler warning In scan_async_group() if the size parameter is negative, the sasd pointer will be used uninitialised: drivers/media/platform/soc_camera/soc_camera.c: In function "soc_camera_host_register": drivers/media/platform/soc_camera/soc_camera.c:1514:55: warning: "sasd" may be used uninitialized in this function [-Wmaybe-uninitialized] sasd->asd.match.i2c.adapter_id, sasd->asd.match.i2c.address); ^ drivers/media/platform/soc_camera/soc_camera.c:1464:34: note: "sasd" was declared here struct soc_camera_async_subdev *sasd; Fix this by making "size" and the array, from which it is assigned unsigned. Signed-off-by: Guennadi Liakhovetski Acked-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- include/media/sh_mobile_ceu.h | 2 +- include/media/soc_camera.h | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/include/media/sh_mobile_ceu.h b/include/media/sh_mobile_ceu.h index 8937241e5f37..7f57056c22ba 100644 --- a/include/media/sh_mobile_ceu.h +++ b/include/media/sh_mobile_ceu.h @@ -23,7 +23,7 @@ struct sh_mobile_ceu_info { int max_height; struct sh_mobile_ceu_companion *csi2; struct v4l2_async_subdev **asd; /* Flat array, arranged in groups */ - int *asd_sizes; /* 0-terminated array pf asd group sizes */ + unsigned int *asd_sizes; /* 0-terminated array pf asd group sizes */ }; #endif /* __ASM_SH_MOBILE_CEU_H__ */ diff --git a/include/media/soc_camera.h b/include/media/soc_camera.h index 906ed98c6e95..34d2414f2b8c 100644 --- a/include/media/soc_camera.h +++ b/include/media/soc_camera.h @@ -87,7 +87,7 @@ struct soc_camera_host { const char *drv_name; struct soc_camera_host_ops *ops; struct v4l2_async_subdev **asd; /* Flat array, arranged in groups */ - int *asd_sizes; /* 0-terminated array of asd group sizes */ + unsigned int *asd_sizes; /* 0-terminated array of asd group sizes */ }; struct soc_camera_host_ops { -- cgit v1.2.1 From 5a1d3e9f18ceb8d791bdc9a78d8ee10ddc80a6e8 Mon Sep 17 00:00:00 2001 From: Hans Verkuil Date: Fri, 21 Jun 2013 02:05:34 -0300 Subject: [media] v4l2-controls.h: fix copy-and-paste error in comment The comment for the FM_RX class was copied from the DV class unchanged. Fixed. Also made the FM_TX comment consistent with the others. Signed-off-by: Hans Verkuil Acked-by: Laurent Pinchart Signed-off-by: Mauro Carvalho Chehab --- include/uapi/linux/v4l2-controls.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/include/uapi/linux/v4l2-controls.h b/include/uapi/linux/v4l2-controls.h index 69bd5bb0d5af..e90a88a8708f 100644 --- a/include/uapi/linux/v4l2-controls.h +++ b/include/uapi/linux/v4l2-controls.h @@ -53,13 +53,13 @@ #define V4L2_CTRL_CLASS_USER 0x00980000 /* Old-style 'user' controls */ #define V4L2_CTRL_CLASS_MPEG 0x00990000 /* MPEG-compression controls */ #define V4L2_CTRL_CLASS_CAMERA 0x009a0000 /* Camera class controls */ -#define V4L2_CTRL_CLASS_FM_TX 0x009b0000 /* FM Modulator control class */ +#define V4L2_CTRL_CLASS_FM_TX 0x009b0000 /* FM Modulator controls */ #define V4L2_CTRL_CLASS_FLASH 0x009c0000 /* Camera flash controls */ #define V4L2_CTRL_CLASS_JPEG 0x009d0000 /* JPEG-compression controls */ #define V4L2_CTRL_CLASS_IMAGE_SOURCE 0x009e0000 /* Image source controls */ #define V4L2_CTRL_CLASS_IMAGE_PROC 0x009f0000 /* Image processing controls */ #define V4L2_CTRL_CLASS_DV 0x00a00000 /* Digital Video controls */ -#define V4L2_CTRL_CLASS_FM_RX 0x00a10000 /* Digital Video controls */ +#define V4L2_CTRL_CLASS_FM_RX 0x00a10000 /* FM Receiver controls */ /* User-class control IDs */ -- cgit v1.2.1 From 1c26190a8d492adadac4711fe5762d46204b18b0 Mon Sep 17 00:00:00 2001 From: Sylwester Nawrocki Date: Thu, 20 Jun 2013 10:49:09 -0300 Subject: [media] exynos4-is: Correct colorspace handling at FIMC-LITE Ensure the colorspace is properly adjusted by the driver for YUV and Bayer image formats. The subdev try_fmt helper is simplified. Signed-off-by: Sylwester Nawrocki Signed-off-by: Kyungmin Park Signed-off-by: Mauro Carvalho Chehab --- include/media/s5p_fimc.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include') diff --git a/include/media/s5p_fimc.h b/include/media/s5p_fimc.h index 0afadb663bbd..b975c285c8a9 100644 --- a/include/media/s5p_fimc.h +++ b/include/media/s5p_fimc.h @@ -116,6 +116,7 @@ struct s5p_platform_fimc { * @color: the driver's private color format id * @memplanes: number of physically non-contiguous data planes * @colplanes: number of physically contiguous data planes + * @colorspace: v4l2 colorspace (V4L2_COLORSPACE_*) * @depth: per plane driver's private 'number of bits per pixel' * @mdataplanes: bitmask indicating meta data plane(s), (1 << plane_no) * @flags: flags indicating which operation mode format applies to @@ -127,6 +128,7 @@ struct fimc_fmt { u32 color; u16 memplanes; u16 colplanes; + u8 colorspace; u8 depth[FIMC_MAX_PLANES]; u16 mdataplanes; u16 flags; -- cgit v1.2.1 From d753601a2a5ff67bbc96ce6512a16305bfd293e7 Mon Sep 17 00:00:00 2001 From: Florian Fainelli Date: Tue, 18 Jun 2013 16:55:41 +0000 Subject: MIPS: BCM63XX: recognize Cable Modem firmware format Add the firmware header format which is used by Broadcom Cable Modem SoCs such as the BCM3368 SoC. We export the bcm_hcs firmware format structure because it is used by user-land tools to create firmware images for these SoCs and will later be used by a corresponding MTD parser. Signed-off-by: Florian Fainelli Cc: linux-mips@linux-mips.org Cc: cernekee@gmail.com Cc: jogo@openwrt.org Patchwork: https://patchwork.linux-mips.org/patch/5496/ Signed-off-by: Ralf Baechle --- include/uapi/linux/Kbuild | 1 + include/uapi/linux/bcm933xx_hcs.h | 24 ++++++++++++++++++++++++ 2 files changed, 25 insertions(+) create mode 100644 include/uapi/linux/bcm933xx_hcs.h (limited to 'include') diff --git a/include/uapi/linux/Kbuild b/include/uapi/linux/Kbuild index ab5d4992e568..ba1c11ab0d11 100644 --- a/include/uapi/linux/Kbuild +++ b/include/uapi/linux/Kbuild @@ -62,6 +62,7 @@ header-y += auxvec.h header-y += ax25.h header-y += b1lli.h header-y += baycom.h +header-y += bcm933xx_hcs.h header-y += bfs_fs.h header-y += binfmts.h header-y += blkpg.h diff --git a/include/uapi/linux/bcm933xx_hcs.h b/include/uapi/linux/bcm933xx_hcs.h new file mode 100644 index 000000000000..d22821831549 --- /dev/null +++ b/include/uapi/linux/bcm933xx_hcs.h @@ -0,0 +1,24 @@ +/* + * Broadcom Cable Modem firmware format + */ + +#ifndef __BCM933XX_HCS_H +#define __BCM933XX_HCS_H + +#include + +struct bcm_hcs { + __u16 magic; + __u16 control; + __u16 rev_maj; + __u16 rev_min; + __u32 build_date; + __u32 filelen; + __u32 ldaddress; + char filename[64]; + __u16 hcs; + __u16 her_znaet_chto; + __u32 crc; +}; + +#endif /* __BCM933XX_HCS */ -- cgit v1.2.1 From 1c297a66654a3295ae87e2b7f3724d214eb2b5ec Mon Sep 17 00:00:00 2001 From: Alexandre Belloni Date: Mon, 1 Jul 2013 15:20:00 +0100 Subject: iio: Fix iio_channel_has_info Since the info_mask split, iio_channel_has_info() is not working correctly. info_mask_separate and info_mask_shared_by_type, it is not possible to compare them directly with the iio_chan_info_enum enum. Correct that bit using the BIT() macro. Cc: # 3.10.x Signed-off-by: Alexandre Belloni Signed-off-by: Jonathan Cameron --- include/linux/iio/iio.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/include/linux/iio/iio.h b/include/linux/iio/iio.h index 8d171f427632..3d35b7023591 100644 --- a/include/linux/iio/iio.h +++ b/include/linux/iio/iio.h @@ -211,8 +211,8 @@ struct iio_chan_spec { static inline bool iio_channel_has_info(const struct iio_chan_spec *chan, enum iio_chan_info_enum type) { - return (chan->info_mask_separate & type) | - (chan->info_mask_shared_by_type & type); + return (chan->info_mask_separate & BIT(type)) | + (chan->info_mask_shared_by_type & BIT(type)); } #define IIO_ST(si, rb, sb, sh) \ -- cgit v1.2.1 From e7efa615ccf78394338144ff0187be331240748a Mon Sep 17 00:00:00 2001 From: Michael Opdenacker Date: Tue, 25 Jun 2013 18:16:55 +0200 Subject: slab: add kmalloc() to kernel API documentation At the moment, kmalloc() isn't even listed in the kernel API documentation (DocBook/kernel-api.html after running "make htmldocs"). Another issue is that the documentation for kmalloc_node() refers to kcalloc()'s documentation to describe its 'flags' parameter, while kcalloc() refered to kmalloc()'s documentation, which doesn't exist! This patch is a proposed fix for this. It also removes the documentation for kmalloc() in include/linux/slob_def.h which isn't included to generate the documentation anyway. This way, kmalloc() is described in only one place. Acked-by: Christoph Lameter Acked-by: Randy Dunlap Signed-off-by: Michael Opdenacker Signed-off-by: Pekka Enberg --- include/linux/slab.h | 18 ++++++++++++++---- include/linux/slob_def.h | 8 -------- 2 files changed, 14 insertions(+), 12 deletions(-) (limited to 'include') diff --git a/include/linux/slab.h b/include/linux/slab.h index 9690c14eb7fb..6c5cc0ea8713 100644 --- a/include/linux/slab.h +++ b/include/linux/slab.h @@ -373,9 +373,8 @@ int cache_show(struct kmem_cache *s, struct seq_file *m); void print_slabinfo_header(struct seq_file *m); /** - * kmalloc_array - allocate memory for an array. - * @n: number of elements. - * @size: element size. + * kmalloc - allocate memory + * @size: how many bytes of memory are required. * @flags: the type of memory to allocate. * * The @flags argument may be one of: @@ -422,6 +421,17 @@ void print_slabinfo_header(struct seq_file *m); * There are other flags available as well, but these are not intended * for general use, and so are not documented here. For a full list of * potential flags, always refer to linux/gfp.h. + * + * kmalloc is the normal method of allocating memory + * in the kernel. + */ +static __always_inline void *kmalloc(size_t size, gfp_t flags); + +/** + * kmalloc_array - allocate memory for an array. + * @n: number of elements. + * @size: element size. + * @flags: the type of memory to allocate (see kmalloc). */ static inline void *kmalloc_array(size_t n, size_t size, gfp_t flags) { @@ -445,7 +455,7 @@ static inline void *kcalloc(size_t n, size_t size, gfp_t flags) /** * kmalloc_node - allocate memory from a specific node * @size: how many bytes of memory are required. - * @flags: the type of memory to allocate (see kcalloc). + * @flags: the type of memory to allocate (see kmalloc). * @node: node to allocate from. * * kmalloc() for non-local nodes, used to allocate from a specific node diff --git a/include/linux/slob_def.h b/include/linux/slob_def.h index f28e14a12e3f..095a5a4a8516 100644 --- a/include/linux/slob_def.h +++ b/include/linux/slob_def.h @@ -18,14 +18,6 @@ static __always_inline void *kmalloc_node(size_t size, gfp_t flags, int node) return __kmalloc_node(size, flags, node); } -/** - * kmalloc - allocate memory - * @size: how many bytes of memory are required. - * @flags: the type of memory to allocate (see kcalloc). - * - * kmalloc is the normal method of allocating memory - * in the kernel. - */ static __always_inline void *kmalloc(size_t size, gfp_t flags) { return __kmalloc_node(size, flags, NUMA_NO_NODE); -- cgit v1.2.1 From 0134f16bc91cc15a38c867b81568b791c9b626aa Mon Sep 17 00:00:00 2001 From: Jack Morgenstein Date: Sun, 7 Jul 2013 17:25:52 +0300 Subject: IB/core: Add reserved values to enums for low-level driver use Continue the approach taken by commit d2b57063e4a ("IB/core: Reserve bits in enum ib_qp_create_flags for low-level driver use") and add reserved entries to the ib_qp_type and ib_wr_opcode enums. Low-level drivers can then define macros to use these reserved values, giving proper names to the macros for readability. Also add a range of reserved flags to enum ib_send_flags. The mlx5 IB driver uses the new additions. Signed-off-by: Jack Morgenstein Signed-off-by: Roland Dreier --- include/rdma/ib_verbs.h | 35 +++++++++++++++++++++++++++++++++-- 1 file changed, 33 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h index 98cc4b29fc5b..645c3cedce9c 100644 --- a/include/rdma/ib_verbs.h +++ b/include/rdma/ib_verbs.h @@ -610,7 +610,21 @@ enum ib_qp_type { IB_QPT_RAW_PACKET = 8, IB_QPT_XRC_INI = 9, IB_QPT_XRC_TGT, - IB_QPT_MAX + IB_QPT_MAX, + /* Reserve a range for qp types internal to the low level driver. + * These qp types will not be visible at the IB core layer, so the + * IB_QPT_MAX usages should not be affected in the core layer + */ + IB_QPT_RESERVED1 = 0x1000, + IB_QPT_RESERVED2, + IB_QPT_RESERVED3, + IB_QPT_RESERVED4, + IB_QPT_RESERVED5, + IB_QPT_RESERVED6, + IB_QPT_RESERVED7, + IB_QPT_RESERVED8, + IB_QPT_RESERVED9, + IB_QPT_RESERVED10, }; enum ib_qp_create_flags { @@ -766,6 +780,19 @@ enum ib_wr_opcode { IB_WR_MASKED_ATOMIC_CMP_AND_SWP, IB_WR_MASKED_ATOMIC_FETCH_AND_ADD, IB_WR_BIND_MW, + /* reserve values for low level drivers' internal use. + * These values will not be used at all in the ib core layer. + */ + IB_WR_RESERVED1 = 0xf0, + IB_WR_RESERVED2, + IB_WR_RESERVED3, + IB_WR_RESERVED4, + IB_WR_RESERVED5, + IB_WR_RESERVED6, + IB_WR_RESERVED7, + IB_WR_RESERVED8, + IB_WR_RESERVED9, + IB_WR_RESERVED10, }; enum ib_send_flags { @@ -773,7 +800,11 @@ enum ib_send_flags { IB_SEND_SIGNALED = (1<<1), IB_SEND_SOLICITED = (1<<2), IB_SEND_INLINE = (1<<3), - IB_SEND_IP_CSUM = (1<<4) + IB_SEND_IP_CSUM = (1<<4), + + /* reserve bits 26-31 for low level drivers' internal use */ + IB_SEND_RESERVED_START = (1 << 26), + IB_SEND_RESERVED_END = (1 << 31), }; struct ib_sge { -- cgit v1.2.1 From e126ba97dba9edeb6fafa3665b5f8497fc9cdf8c Mon Sep 17 00:00:00 2001 From: Eli Cohen Date: Sun, 7 Jul 2013 17:25:49 +0300 Subject: mlx5: Add driver for Mellanox Connect-IB adapters The driver is comprised of two kernel modules: mlx5_ib and mlx5_core. This partitioning resembles what we have for mlx4, except that mlx5_ib is the pci device driver and not mlx5_core. mlx5_core is essentially a library that provides general functionality that is intended to be used by other Mellanox devices that will be introduced in the future. mlx5_ib has a similar role as any hardware device under drivers/infiniband/hw. Signed-off-by: Eli Cohen Signed-off-by: Jack Morgenstein Signed-off-by: Or Gerlitz [ Merge in coccinelle fixes from Fengguang Wu . - Roland ] Signed-off-by: Roland Dreier --- include/linux/mlx5/cmd.h | 51 +++ include/linux/mlx5/cq.h | 165 ++++++++ include/linux/mlx5/device.h | 893 ++++++++++++++++++++++++++++++++++++++++++ include/linux/mlx5/doorbell.h | 79 ++++ include/linux/mlx5/driver.h | 769 ++++++++++++++++++++++++++++++++++++ include/linux/mlx5/qp.h | 467 ++++++++++++++++++++++ include/linux/mlx5/srq.h | 41 ++ 7 files changed, 2465 insertions(+) create mode 100644 include/linux/mlx5/cmd.h create mode 100644 include/linux/mlx5/cq.h create mode 100644 include/linux/mlx5/device.h create mode 100644 include/linux/mlx5/doorbell.h create mode 100644 include/linux/mlx5/driver.h create mode 100644 include/linux/mlx5/qp.h create mode 100644 include/linux/mlx5/srq.h (limited to 'include') diff --git a/include/linux/mlx5/cmd.h b/include/linux/mlx5/cmd.h new file mode 100644 index 000000000000..2826a4b6071e --- /dev/null +++ b/include/linux/mlx5/cmd.h @@ -0,0 +1,51 @@ +/* + * Copyright (c) 2013, Mellanox Technologies inc. All rights reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * OpenIB.org BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#ifndef MLX5_CMD_H +#define MLX5_CMD_H + +#include + +struct manage_pages_layout { + u64 ptr; + u32 reserved; + u16 num_entries; + u16 func_id; +}; + + +struct mlx5_cmd_alloc_uar_imm_out { + u32 rsvd[3]; + u32 uarn; +}; + +#endif /* MLX5_CMD_H */ diff --git a/include/linux/mlx5/cq.h b/include/linux/mlx5/cq.h new file mode 100644 index 000000000000..3db67f73d96d --- /dev/null +++ b/include/linux/mlx5/cq.h @@ -0,0 +1,165 @@ +/* + * Copyright (c) 2013, Mellanox Technologies inc. All rights reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * OpenIB.org BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#ifndef MLX5_CORE_CQ_H +#define MLX5_CORE_CQ_H + +#include +#include + + +struct mlx5_core_cq { + u32 cqn; + int cqe_sz; + __be32 *set_ci_db; + __be32 *arm_db; + atomic_t refcount; + struct completion free; + unsigned vector; + int irqn; + void (*comp) (struct mlx5_core_cq *); + void (*event) (struct mlx5_core_cq *, enum mlx5_event); + struct mlx5_uar *uar; + u32 cons_index; + unsigned arm_sn; + struct mlx5_rsc_debug *dbg; + int pid; +}; + + +enum { + MLX5_CQE_SYNDROME_LOCAL_LENGTH_ERR = 0x01, + MLX5_CQE_SYNDROME_LOCAL_QP_OP_ERR = 0x02, + MLX5_CQE_SYNDROME_LOCAL_PROT_ERR = 0x04, + MLX5_CQE_SYNDROME_WR_FLUSH_ERR = 0x05, + MLX5_CQE_SYNDROME_MW_BIND_ERR = 0x06, + MLX5_CQE_SYNDROME_BAD_RESP_ERR = 0x10, + MLX5_CQE_SYNDROME_LOCAL_ACCESS_ERR = 0x11, + MLX5_CQE_SYNDROME_REMOTE_INVAL_REQ_ERR = 0x12, + MLX5_CQE_SYNDROME_REMOTE_ACCESS_ERR = 0x13, + MLX5_CQE_SYNDROME_REMOTE_OP_ERR = 0x14, + MLX5_CQE_SYNDROME_TRANSPORT_RETRY_EXC_ERR = 0x15, + MLX5_CQE_SYNDROME_RNR_RETRY_EXC_ERR = 0x16, + MLX5_CQE_SYNDROME_REMOTE_ABORTED_ERR = 0x22, +}; + +enum { + MLX5_CQE_OWNER_MASK = 1, + MLX5_CQE_REQ = 0, + MLX5_CQE_RESP_WR_IMM = 1, + MLX5_CQE_RESP_SEND = 2, + MLX5_CQE_RESP_SEND_IMM = 3, + MLX5_CQE_RESP_SEND_INV = 4, + MLX5_CQE_RESIZE_CQ = 0xff, /* TBD */ + MLX5_CQE_REQ_ERR = 13, + MLX5_CQE_RESP_ERR = 14, +}; + +enum { + MLX5_CQ_MODIFY_RESEIZE = 0, + MLX5_CQ_MODIFY_MODER = 1, + MLX5_CQ_MODIFY_MAPPING = 2, +}; + +struct mlx5_cq_modify_params { + int type; + union { + struct { + u32 page_offset; + u8 log_cq_size; + } resize; + + struct { + } moder; + + struct { + } mapping; + } params; +}; + +enum { + CQE_SIZE_64 = 0, + CQE_SIZE_128 = 1, +}; + +static inline int cqe_sz_to_mlx_sz(u8 size) +{ + return size == 64 ? CQE_SIZE_64 : CQE_SIZE_128; +} + +static inline void mlx5_cq_set_ci(struct mlx5_core_cq *cq) +{ + *cq->set_ci_db = cpu_to_be32(cq->cons_index & 0xffffff); +} + +enum { + MLX5_CQ_DB_REQ_NOT_SOL = 1 << 24, + MLX5_CQ_DB_REQ_NOT = 0 << 24 +}; + +static inline void mlx5_cq_arm(struct mlx5_core_cq *cq, u32 cmd, + void __iomem *uar_page, + spinlock_t *doorbell_lock) +{ + __be32 doorbell[2]; + u32 sn; + u32 ci; + + sn = cq->arm_sn & 3; + ci = cq->cons_index & 0xffffff; + + *cq->arm_db = cpu_to_be32(sn << 28 | cmd | ci); + + /* Make sure that the doorbell record in host memory is + * written before ringing the doorbell via PCI MMIO. + */ + wmb(); + + doorbell[0] = cpu_to_be32(sn << 28 | cmd | ci); + doorbell[1] = cpu_to_be32(cq->cqn); + + mlx5_write64(doorbell, uar_page + MLX5_CQ_DOORBELL, doorbell_lock); +} + +int mlx5_init_cq_table(struct mlx5_core_dev *dev); +void mlx5_cleanup_cq_table(struct mlx5_core_dev *dev); +int mlx5_core_create_cq(struct mlx5_core_dev *dev, struct mlx5_core_cq *cq, + struct mlx5_create_cq_mbox_in *in, int inlen); +int mlx5_core_destroy_cq(struct mlx5_core_dev *dev, struct mlx5_core_cq *cq); +int mlx5_core_query_cq(struct mlx5_core_dev *dev, struct mlx5_core_cq *cq, + struct mlx5_query_cq_mbox_out *out); +int mlx5_core_modify_cq(struct mlx5_core_dev *dev, struct mlx5_core_cq *cq, + int type, struct mlx5_cq_modify_params *params); +int mlx5_debug_cq_add(struct mlx5_core_dev *dev, struct mlx5_core_cq *cq); +void mlx5_debug_cq_remove(struct mlx5_core_dev *dev, struct mlx5_core_cq *cq); + +#endif /* MLX5_CORE_CQ_H */ diff --git a/include/linux/mlx5/device.h b/include/linux/mlx5/device.h new file mode 100644 index 000000000000..51390915e538 --- /dev/null +++ b/include/linux/mlx5/device.h @@ -0,0 +1,893 @@ +/* + * Copyright (c) 2013, Mellanox Technologies inc. All rights reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * OpenIB.org BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#ifndef MLX5_DEVICE_H +#define MLX5_DEVICE_H + +#include +#include + +#if defined(__LITTLE_ENDIAN) +#define MLX5_SET_HOST_ENDIANNESS 0 +#elif defined(__BIG_ENDIAN) +#define MLX5_SET_HOST_ENDIANNESS 0x80 +#else +#error Host endianness not defined +#endif + +enum { + MLX5_MAX_COMMANDS = 32, + MLX5_CMD_DATA_BLOCK_SIZE = 512, + MLX5_PCI_CMD_XPORT = 7, +}; + +enum { + MLX5_EXTENDED_UD_AV = 0x80000000, +}; + +enum { + MLX5_CQ_STATE_ARMED = 9, + MLX5_CQ_STATE_ALWAYS_ARMED = 0xb, + MLX5_CQ_STATE_FIRED = 0xa, +}; + +enum { + MLX5_STAT_RATE_OFFSET = 5, +}; + +enum { + MLX5_INLINE_SEG = 0x80000000, +}; + +enum { + MLX5_PERM_LOCAL_READ = 1 << 2, + MLX5_PERM_LOCAL_WRITE = 1 << 3, + MLX5_PERM_REMOTE_READ = 1 << 4, + MLX5_PERM_REMOTE_WRITE = 1 << 5, + MLX5_PERM_ATOMIC = 1 << 6, + MLX5_PERM_UMR_EN = 1 << 7, +}; + +enum { + MLX5_PCIE_CTRL_SMALL_FENCE = 1 << 0, + MLX5_PCIE_CTRL_RELAXED_ORDERING = 1 << 2, + MLX5_PCIE_CTRL_NO_SNOOP = 1 << 3, + MLX5_PCIE_CTRL_TLP_PROCE_EN = 1 << 6, + MLX5_PCIE_CTRL_TPH_MASK = 3 << 4, +}; + +enum { + MLX5_ACCESS_MODE_PA = 0, + MLX5_ACCESS_MODE_MTT = 1, + MLX5_ACCESS_MODE_KLM = 2 +}; + +enum { + MLX5_MKEY_REMOTE_INVAL = 1 << 24, + MLX5_MKEY_FLAG_SYNC_UMR = 1 << 29, + MLX5_MKEY_BSF_EN = 1 << 30, + MLX5_MKEY_LEN64 = 1 << 31, +}; + +enum { + MLX5_EN_RD = (u64)1, + MLX5_EN_WR = (u64)2 +}; + +enum { + MLX5_BF_REGS_PER_PAGE = 4, + MLX5_MAX_UAR_PAGES = 1 << 8, + MLX5_MAX_UUARS = MLX5_MAX_UAR_PAGES * MLX5_BF_REGS_PER_PAGE, +}; + +enum { + MLX5_MKEY_MASK_LEN = 1ull << 0, + MLX5_MKEY_MASK_PAGE_SIZE = 1ull << 1, + MLX5_MKEY_MASK_START_ADDR = 1ull << 6, + MLX5_MKEY_MASK_PD = 1ull << 7, + MLX5_MKEY_MASK_EN_RINVAL = 1ull << 8, + MLX5_MKEY_MASK_BSF_EN = 1ull << 12, + MLX5_MKEY_MASK_KEY = 1ull << 13, + MLX5_MKEY_MASK_QPN = 1ull << 14, + MLX5_MKEY_MASK_LR = 1ull << 17, + MLX5_MKEY_MASK_LW = 1ull << 18, + MLX5_MKEY_MASK_RR = 1ull << 19, + MLX5_MKEY_MASK_RW = 1ull << 20, + MLX5_MKEY_MASK_A = 1ull << 21, + MLX5_MKEY_MASK_SMALL_FENCE = 1ull << 23, + MLX5_MKEY_MASK_FREE = 1ull << 29, +}; + +enum mlx5_event { + MLX5_EVENT_TYPE_COMP = 0x0, + + MLX5_EVENT_TYPE_PATH_MIG = 0x01, + MLX5_EVENT_TYPE_COMM_EST = 0x02, + MLX5_EVENT_TYPE_SQ_DRAINED = 0x03, + MLX5_EVENT_TYPE_SRQ_LAST_WQE = 0x13, + MLX5_EVENT_TYPE_SRQ_RQ_LIMIT = 0x14, + + MLX5_EVENT_TYPE_CQ_ERROR = 0x04, + MLX5_EVENT_TYPE_WQ_CATAS_ERROR = 0x05, + MLX5_EVENT_TYPE_PATH_MIG_FAILED = 0x07, + MLX5_EVENT_TYPE_WQ_INVAL_REQ_ERROR = 0x10, + MLX5_EVENT_TYPE_WQ_ACCESS_ERROR = 0x11, + MLX5_EVENT_TYPE_SRQ_CATAS_ERROR = 0x12, + + MLX5_EVENT_TYPE_INTERNAL_ERROR = 0x08, + MLX5_EVENT_TYPE_PORT_CHANGE = 0x09, + MLX5_EVENT_TYPE_GPIO_EVENT = 0x15, + MLX5_EVENT_TYPE_REMOTE_CONFIG = 0x19, + + MLX5_EVENT_TYPE_DB_BF_CONGESTION = 0x1a, + MLX5_EVENT_TYPE_STALL_EVENT = 0x1b, + + MLX5_EVENT_TYPE_CMD = 0x0a, + MLX5_EVENT_TYPE_PAGE_REQUEST = 0xb, +}; + +enum { + MLX5_PORT_CHANGE_SUBTYPE_DOWN = 1, + MLX5_PORT_CHANGE_SUBTYPE_ACTIVE = 4, + MLX5_PORT_CHANGE_SUBTYPE_INITIALIZED = 5, + MLX5_PORT_CHANGE_SUBTYPE_LID = 6, + MLX5_PORT_CHANGE_SUBTYPE_PKEY = 7, + MLX5_PORT_CHANGE_SUBTYPE_GUID = 8, + MLX5_PORT_CHANGE_SUBTYPE_CLIENT_REREG = 9, +}; + +enum { + MLX5_DEV_CAP_FLAG_RC = 1LL << 0, + MLX5_DEV_CAP_FLAG_UC = 1LL << 1, + MLX5_DEV_CAP_FLAG_UD = 1LL << 2, + MLX5_DEV_CAP_FLAG_XRC = 1LL << 3, + MLX5_DEV_CAP_FLAG_SRQ = 1LL << 6, + MLX5_DEV_CAP_FLAG_BAD_PKEY_CNTR = 1LL << 8, + MLX5_DEV_CAP_FLAG_BAD_QKEY_CNTR = 1LL << 9, + MLX5_DEV_CAP_FLAG_APM = 1LL << 17, + MLX5_DEV_CAP_FLAG_ATOMIC = 1LL << 18, + MLX5_DEV_CAP_FLAG_ON_DMND_PG = 1LL << 24, + MLX5_DEV_CAP_FLAG_RESIZE_SRQ = 1LL << 32, + MLX5_DEV_CAP_FLAG_REMOTE_FENCE = 1LL << 38, + MLX5_DEV_CAP_FLAG_TLP_HINTS = 1LL << 39, + MLX5_DEV_CAP_FLAG_SIG_HAND_OVER = 1LL << 40, + MLX5_DEV_CAP_FLAG_DCT = 1LL << 41, + MLX5_DEV_CAP_FLAG_CMDIF_CSUM = 1LL << 46, +}; + +enum { + MLX5_OPCODE_NOP = 0x00, + MLX5_OPCODE_SEND_INVAL = 0x01, + MLX5_OPCODE_RDMA_WRITE = 0x08, + MLX5_OPCODE_RDMA_WRITE_IMM = 0x09, + MLX5_OPCODE_SEND = 0x0a, + MLX5_OPCODE_SEND_IMM = 0x0b, + MLX5_OPCODE_RDMA_READ = 0x10, + MLX5_OPCODE_ATOMIC_CS = 0x11, + MLX5_OPCODE_ATOMIC_FA = 0x12, + MLX5_OPCODE_ATOMIC_MASKED_CS = 0x14, + MLX5_OPCODE_ATOMIC_MASKED_FA = 0x15, + MLX5_OPCODE_BIND_MW = 0x18, + MLX5_OPCODE_CONFIG_CMD = 0x1f, + + MLX5_RECV_OPCODE_RDMA_WRITE_IMM = 0x00, + MLX5_RECV_OPCODE_SEND = 0x01, + MLX5_RECV_OPCODE_SEND_IMM = 0x02, + MLX5_RECV_OPCODE_SEND_INVAL = 0x03, + + MLX5_CQE_OPCODE_ERROR = 0x1e, + MLX5_CQE_OPCODE_RESIZE = 0x16, + + MLX5_OPCODE_SET_PSV = 0x20, + MLX5_OPCODE_GET_PSV = 0x21, + MLX5_OPCODE_CHECK_PSV = 0x22, + MLX5_OPCODE_RGET_PSV = 0x26, + MLX5_OPCODE_RCHECK_PSV = 0x27, + + MLX5_OPCODE_UMR = 0x25, + +}; + +enum { + MLX5_SET_PORT_RESET_QKEY = 0, + MLX5_SET_PORT_GUID0 = 16, + MLX5_SET_PORT_NODE_GUID = 17, + MLX5_SET_PORT_SYS_GUID = 18, + MLX5_SET_PORT_GID_TABLE = 19, + MLX5_SET_PORT_PKEY_TABLE = 20, +}; + +enum { + MLX5_MAX_PAGE_SHIFT = 31 +}; + +struct mlx5_inbox_hdr { + __be16 opcode; + u8 rsvd[4]; + __be16 opmod; +}; + +struct mlx5_outbox_hdr { + u8 status; + u8 rsvd[3]; + __be32 syndrome; +}; + +struct mlx5_cmd_query_adapter_mbox_in { + struct mlx5_inbox_hdr hdr; + u8 rsvd[8]; +}; + +struct mlx5_cmd_query_adapter_mbox_out { + struct mlx5_outbox_hdr hdr; + u8 rsvd0[24]; + u8 intapin; + u8 rsvd1[13]; + __be16 vsd_vendor_id; + u8 vsd[208]; + u8 vsd_psid[16]; +}; + +struct mlx5_hca_cap { + u8 rsvd1[16]; + u8 log_max_srq_sz; + u8 log_max_qp_sz; + u8 rsvd2; + u8 log_max_qp; + u8 log_max_strq_sz; + u8 log_max_srqs; + u8 rsvd4[2]; + u8 rsvd5; + u8 log_max_cq_sz; + u8 rsvd6; + u8 log_max_cq; + u8 log_max_eq_sz; + u8 log_max_mkey; + u8 rsvd7; + u8 log_max_eq; + u8 max_indirection; + u8 log_max_mrw_sz; + u8 log_max_bsf_list_sz; + u8 log_max_klm_list_sz; + u8 rsvd_8_0; + u8 log_max_ra_req_dc; + u8 rsvd_8_1; + u8 log_max_ra_res_dc; + u8 rsvd9; + u8 log_max_ra_req_qp; + u8 rsvd10; + u8 log_max_ra_res_qp; + u8 rsvd11[4]; + __be16 max_qp_count; + __be16 rsvd12; + u8 rsvd13; + u8 local_ca_ack_delay; + u8 rsvd14; + u8 num_ports; + u8 log_max_msg; + u8 rsvd15[3]; + __be16 stat_rate_support; + u8 rsvd16[2]; + __be64 flags; + u8 rsvd17; + u8 uar_sz; + u8 rsvd18; + u8 log_pg_sz; + __be16 bf_log_bf_reg_size; + u8 rsvd19[4]; + __be16 max_desc_sz_sq; + u8 rsvd20[2]; + __be16 max_desc_sz_rq; + u8 rsvd21[2]; + __be16 max_desc_sz_sq_dc; + u8 rsvd22[4]; + __be16 max_qp_mcg; + u8 rsvd23; + u8 log_max_mcg; + u8 rsvd24; + u8 log_max_pd; + u8 rsvd25; + u8 log_max_xrcd; + u8 rsvd26[40]; + __be32 uar_page_sz; + u8 rsvd27[28]; + u8 log_msx_atomic_size_qp; + u8 rsvd28[2]; + u8 log_msx_atomic_size_dc; + u8 rsvd29[76]; +}; + + +struct mlx5_cmd_query_hca_cap_mbox_in { + struct mlx5_inbox_hdr hdr; + u8 rsvd[8]; +}; + + +struct mlx5_cmd_query_hca_cap_mbox_out { + struct mlx5_outbox_hdr hdr; + u8 rsvd0[8]; + struct mlx5_hca_cap hca_cap; +}; + + +struct mlx5_cmd_set_hca_cap_mbox_in { + struct mlx5_inbox_hdr hdr; + u8 rsvd[8]; + struct mlx5_hca_cap hca_cap; +}; + + +struct mlx5_cmd_set_hca_cap_mbox_out { + struct mlx5_outbox_hdr hdr; + u8 rsvd0[8]; +}; + + +struct mlx5_cmd_init_hca_mbox_in { + struct mlx5_inbox_hdr hdr; + u8 rsvd0[2]; + __be16 profile; + u8 rsvd1[4]; +}; + +struct mlx5_cmd_init_hca_mbox_out { + struct mlx5_outbox_hdr hdr; + u8 rsvd[8]; +}; + +struct mlx5_cmd_teardown_hca_mbox_in { + struct mlx5_inbox_hdr hdr; + u8 rsvd0[2]; + __be16 profile; + u8 rsvd1[4]; +}; + +struct mlx5_cmd_teardown_hca_mbox_out { + struct mlx5_outbox_hdr hdr; + u8 rsvd[8]; +}; + +struct mlx5_cmd_layout { + u8 type; + u8 rsvd0[3]; + __be32 inlen; + __be64 in_ptr; + __be32 in[4]; + __be32 out[4]; + __be64 out_ptr; + __be32 outlen; + u8 token; + u8 sig; + u8 rsvd1; + u8 status_own; +}; + + +struct health_buffer { + __be32 assert_var[5]; + __be32 rsvd0[3]; + __be32 assert_exit_ptr; + __be32 assert_callra; + __be32 rsvd1[2]; + __be32 fw_ver; + __be32 hw_id; + __be32 rsvd2; + u8 irisc_index; + u8 synd; + __be16 ext_sync; +}; + +struct mlx5_init_seg { + __be32 fw_rev; + __be32 cmdif_rev_fw_sub; + __be32 rsvd0[2]; + __be32 cmdq_addr_h; + __be32 cmdq_addr_l_sz; + __be32 cmd_dbell; + __be32 rsvd1[121]; + struct health_buffer health; + __be32 rsvd2[884]; + __be32 health_counter; + __be32 rsvd3[1023]; + __be64 ieee1588_clk; + __be32 ieee1588_clk_type; + __be32 clr_intx; +}; + +struct mlx5_eqe_comp { + __be32 reserved[6]; + __be32 cqn; +}; + +struct mlx5_eqe_qp_srq { + __be32 reserved[6]; + __be32 qp_srq_n; +}; + +struct mlx5_eqe_cq_err { + __be32 cqn; + u8 reserved1[7]; + u8 syndrome; +}; + +struct mlx5_eqe_dropped_packet { +}; + +struct mlx5_eqe_port_state { + u8 reserved0[8]; + u8 port; +}; + +struct mlx5_eqe_gpio { + __be32 reserved0[2]; + __be64 gpio_event; +}; + +struct mlx5_eqe_congestion { + u8 type; + u8 rsvd0; + u8 congestion_level; +}; + +struct mlx5_eqe_stall_vl { + u8 rsvd0[3]; + u8 port_vl; +}; + +struct mlx5_eqe_cmd { + __be32 vector; + __be32 rsvd[6]; +}; + +struct mlx5_eqe_page_req { + u8 rsvd0[2]; + __be16 func_id; + u8 rsvd1[2]; + __be16 num_pages; + __be32 rsvd2[5]; +}; + +union ev_data { + __be32 raw[7]; + struct mlx5_eqe_cmd cmd; + struct mlx5_eqe_comp comp; + struct mlx5_eqe_qp_srq qp_srq; + struct mlx5_eqe_cq_err cq_err; + struct mlx5_eqe_dropped_packet dp; + struct mlx5_eqe_port_state port; + struct mlx5_eqe_gpio gpio; + struct mlx5_eqe_congestion cong; + struct mlx5_eqe_stall_vl stall_vl; + struct mlx5_eqe_page_req req_pages; +} __packed; + +struct mlx5_eqe { + u8 rsvd0; + u8 type; + u8 rsvd1; + u8 sub_type; + __be32 rsvd2[7]; + union ev_data data; + __be16 rsvd3; + u8 signature; + u8 owner; +} __packed; + +struct mlx5_cmd_prot_block { + u8 data[MLX5_CMD_DATA_BLOCK_SIZE]; + u8 rsvd0[48]; + __be64 next; + __be32 block_num; + u8 rsvd1; + u8 token; + u8 ctrl_sig; + u8 sig; +}; + +struct mlx5_err_cqe { + u8 rsvd0[32]; + __be32 srqn; + u8 rsvd1[18]; + u8 vendor_err_synd; + u8 syndrome; + __be32 s_wqe_opcode_qpn; + __be16 wqe_counter; + u8 signature; + u8 op_own; +}; + +struct mlx5_cqe64 { + u8 rsvd0[17]; + u8 ml_path; + u8 rsvd20[4]; + __be16 slid; + __be32 flags_rqpn; + u8 rsvd28[4]; + __be32 srqn; + __be32 imm_inval_pkey; + u8 rsvd40[4]; + __be32 byte_cnt; + __be64 timestamp; + __be32 sop_drop_qpn; + __be16 wqe_counter; + u8 signature; + u8 op_own; +}; + +struct mlx5_wqe_srq_next_seg { + u8 rsvd0[2]; + __be16 next_wqe_index; + u8 signature; + u8 rsvd1[11]; +}; + +union mlx5_ext_cqe { + struct ib_grh grh; + u8 inl[64]; +}; + +struct mlx5_cqe128 { + union mlx5_ext_cqe inl_grh; + struct mlx5_cqe64 cqe64; +}; + +struct mlx5_srq_ctx { + u8 state_log_sz; + u8 rsvd0[3]; + __be32 flags_xrcd; + __be32 pgoff_cqn; + u8 rsvd1[4]; + u8 log_pg_sz; + u8 rsvd2[7]; + __be32 pd; + __be16 lwm; + __be16 wqe_cnt; + u8 rsvd3[8]; + __be64 db_record; +}; + +struct mlx5_create_srq_mbox_in { + struct mlx5_inbox_hdr hdr; + __be32 input_srqn; + u8 rsvd0[4]; + struct mlx5_srq_ctx ctx; + u8 rsvd1[208]; + __be64 pas[0]; +}; + +struct mlx5_create_srq_mbox_out { + struct mlx5_outbox_hdr hdr; + __be32 srqn; + u8 rsvd[4]; +}; + +struct mlx5_destroy_srq_mbox_in { + struct mlx5_inbox_hdr hdr; + __be32 srqn; + u8 rsvd[4]; +}; + +struct mlx5_destroy_srq_mbox_out { + struct mlx5_outbox_hdr hdr; + u8 rsvd[8]; +}; + +struct mlx5_query_srq_mbox_in { + struct mlx5_inbox_hdr hdr; + __be32 srqn; + u8 rsvd0[4]; +}; + +struct mlx5_query_srq_mbox_out { + struct mlx5_outbox_hdr hdr; + u8 rsvd0[8]; + struct mlx5_srq_ctx ctx; + u8 rsvd1[32]; + __be64 pas[0]; +}; + +struct mlx5_arm_srq_mbox_in { + struct mlx5_inbox_hdr hdr; + __be32 srqn; + __be16 rsvd; + __be16 lwm; +}; + +struct mlx5_arm_srq_mbox_out { + struct mlx5_outbox_hdr hdr; + u8 rsvd[8]; +}; + +struct mlx5_cq_context { + u8 status; + u8 cqe_sz_flags; + u8 st; + u8 rsvd3; + u8 rsvd4[6]; + __be16 page_offset; + __be32 log_sz_usr_page; + __be16 cq_period; + __be16 cq_max_count; + __be16 rsvd20; + __be16 c_eqn; + u8 log_pg_sz; + u8 rsvd25[7]; + __be32 last_notified_index; + __be32 solicit_producer_index; + __be32 consumer_counter; + __be32 producer_counter; + u8 rsvd48[8]; + __be64 db_record_addr; +}; + +struct mlx5_create_cq_mbox_in { + struct mlx5_inbox_hdr hdr; + __be32 input_cqn; + u8 rsvdx[4]; + struct mlx5_cq_context ctx; + u8 rsvd6[192]; + __be64 pas[0]; +}; + +struct mlx5_create_cq_mbox_out { + struct mlx5_outbox_hdr hdr; + __be32 cqn; + u8 rsvd0[4]; +}; + +struct mlx5_destroy_cq_mbox_in { + struct mlx5_inbox_hdr hdr; + __be32 cqn; + u8 rsvd0[4]; +}; + +struct mlx5_destroy_cq_mbox_out { + struct mlx5_outbox_hdr hdr; + u8 rsvd0[8]; +}; + +struct mlx5_query_cq_mbox_in { + struct mlx5_inbox_hdr hdr; + __be32 cqn; + u8 rsvd0[4]; +}; + +struct mlx5_query_cq_mbox_out { + struct mlx5_outbox_hdr hdr; + u8 rsvd0[8]; + struct mlx5_cq_context ctx; + u8 rsvd6[16]; + __be64 pas[0]; +}; + +struct mlx5_eq_context { + u8 status; + u8 ec_oi; + u8 st; + u8 rsvd2[7]; + __be16 page_pffset; + __be32 log_sz_usr_page; + u8 rsvd3[7]; + u8 intr; + u8 log_page_size; + u8 rsvd4[15]; + __be32 consumer_counter; + __be32 produser_counter; + u8 rsvd5[16]; +}; + +struct mlx5_create_eq_mbox_in { + struct mlx5_inbox_hdr hdr; + u8 rsvd0[3]; + u8 input_eqn; + u8 rsvd1[4]; + struct mlx5_eq_context ctx; + u8 rsvd2[8]; + __be64 events_mask; + u8 rsvd3[176]; + __be64 pas[0]; +}; + +struct mlx5_create_eq_mbox_out { + struct mlx5_outbox_hdr hdr; + u8 rsvd0[3]; + u8 eq_number; + u8 rsvd1[4]; +}; + +struct mlx5_destroy_eq_mbox_in { + struct mlx5_inbox_hdr hdr; + u8 rsvd0[3]; + u8 eqn; + u8 rsvd1[4]; +}; + +struct mlx5_destroy_eq_mbox_out { + struct mlx5_outbox_hdr hdr; + u8 rsvd[8]; +}; + +struct mlx5_map_eq_mbox_in { + struct mlx5_inbox_hdr hdr; + __be64 mask; + u8 mu; + u8 rsvd0[2]; + u8 eqn; + u8 rsvd1[24]; +}; + +struct mlx5_map_eq_mbox_out { + struct mlx5_outbox_hdr hdr; + u8 rsvd[8]; +}; + +struct mlx5_query_eq_mbox_in { + struct mlx5_inbox_hdr hdr; + u8 rsvd0[3]; + u8 eqn; + u8 rsvd1[4]; +}; + +struct mlx5_query_eq_mbox_out { + struct mlx5_outbox_hdr hdr; + u8 rsvd[8]; + struct mlx5_eq_context ctx; +}; + +struct mlx5_mkey_seg { + /* This is a two bit field occupying bits 31-30. + * bit 31 is always 0, + * bit 30 is zero for regular MRs and 1 (e.g free) for UMRs that do not have tanslation + */ + u8 status; + u8 pcie_control; + u8 flags; + u8 version; + __be32 qpn_mkey7_0; + u8 rsvd1[4]; + __be32 flags_pd; + __be64 start_addr; + __be64 len; + __be32 bsfs_octo_size; + u8 rsvd2[16]; + __be32 xlt_oct_size; + u8 rsvd3[3]; + u8 log2_page_size; + u8 rsvd4[4]; +}; + +struct mlx5_query_special_ctxs_mbox_in { + struct mlx5_inbox_hdr hdr; + u8 rsvd[8]; +}; + +struct mlx5_query_special_ctxs_mbox_out { + struct mlx5_outbox_hdr hdr; + __be32 dump_fill_mkey; + __be32 reserved_lkey; +}; + +struct mlx5_create_mkey_mbox_in { + struct mlx5_inbox_hdr hdr; + __be32 input_mkey_index; + u8 rsvd0[4]; + struct mlx5_mkey_seg seg; + u8 rsvd1[16]; + __be32 xlat_oct_act_size; + __be32 bsf_coto_act_size; + u8 rsvd2[168]; + __be64 pas[0]; +}; + +struct mlx5_create_mkey_mbox_out { + struct mlx5_outbox_hdr hdr; + __be32 mkey; + u8 rsvd[4]; +}; + +struct mlx5_destroy_mkey_mbox_in { + struct mlx5_inbox_hdr hdr; + __be32 mkey; + u8 rsvd[4]; +}; + +struct mlx5_destroy_mkey_mbox_out { + struct mlx5_outbox_hdr hdr; + u8 rsvd[8]; +}; + +struct mlx5_query_mkey_mbox_in { + struct mlx5_inbox_hdr hdr; + __be32 mkey; +}; + +struct mlx5_query_mkey_mbox_out { + struct mlx5_outbox_hdr hdr; + __be64 pas[0]; +}; + +struct mlx5_modify_mkey_mbox_in { + struct mlx5_inbox_hdr hdr; + __be32 mkey; + __be64 pas[0]; +}; + +struct mlx5_modify_mkey_mbox_out { + struct mlx5_outbox_hdr hdr; +}; + +struct mlx5_dump_mkey_mbox_in { + struct mlx5_inbox_hdr hdr; +}; + +struct mlx5_dump_mkey_mbox_out { + struct mlx5_outbox_hdr hdr; + __be32 mkey; +}; + +struct mlx5_mad_ifc_mbox_in { + struct mlx5_inbox_hdr hdr; + __be16 remote_lid; + u8 rsvd0; + u8 port; + u8 rsvd1[4]; + u8 data[256]; +}; + +struct mlx5_mad_ifc_mbox_out { + struct mlx5_outbox_hdr hdr; + u8 rsvd[8]; + u8 data[256]; +}; + +struct mlx5_access_reg_mbox_in { + struct mlx5_inbox_hdr hdr; + u8 rsvd0[2]; + __be16 register_id; + __be32 arg; + __be32 data[0]; +}; + +struct mlx5_access_reg_mbox_out { + struct mlx5_outbox_hdr hdr; + u8 rsvd[8]; + __be32 data[0]; +}; + +#define MLX5_ATTR_EXTENDED_PORT_INFO cpu_to_be16(0xff90) + +enum { + MLX_EXT_PORT_CAP_FLAG_EXTENDED_PORT_INFO = 1 << 0 +}; + +#endif /* MLX5_DEVICE_H */ diff --git a/include/linux/mlx5/doorbell.h b/include/linux/mlx5/doorbell.h new file mode 100644 index 000000000000..163a818411e7 --- /dev/null +++ b/include/linux/mlx5/doorbell.h @@ -0,0 +1,79 @@ +/* + * Copyright (c) 2013, Mellanox Technologies inc. All rights reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * OpenIB.org BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#ifndef MLX5_DOORBELL_H +#define MLX5_DOORBELL_H + +#define MLX5_BF_OFFSET 0x800 +#define MLX5_CQ_DOORBELL 0x20 + +#if BITS_PER_LONG == 64 +/* Assume that we can just write a 64-bit doorbell atomically. s390 + * actually doesn't have writeq() but S/390 systems don't even have + * PCI so we won't worry about it. + */ + +#define MLX5_DECLARE_DOORBELL_LOCK(name) +#define MLX5_INIT_DOORBELL_LOCK(ptr) do { } while (0) +#define MLX5_GET_DOORBELL_LOCK(ptr) (NULL) + +static inline void mlx5_write64(__be32 val[2], void __iomem *dest, + spinlock_t *doorbell_lock) +{ + __raw_writeq(*(u64 *)val, dest); +} + +#else + +/* Just fall back to a spinlock to protect the doorbell if + * BITS_PER_LONG is 32 -- there's no portable way to do atomic 64-bit + * MMIO writes. + */ + +#define MLX5_DECLARE_DOORBELL_LOCK(name) spinlock_t name; +#define MLX5_INIT_DOORBELL_LOCK(ptr) spin_lock_init(ptr) +#define MLX5_GET_DOORBELL_LOCK(ptr) (ptr) + +static inline void mlx5_write64(__be32 val[2], void __iomem *dest, + spinlock_t *doorbell_lock) +{ + unsigned long flags; + + spin_lock_irqsave(doorbell_lock, flags); + __raw_writel((__force u32) val[0], dest); + __raw_writel((__force u32) val[1], dest + 4); + spin_unlock_irqrestore(doorbell_lock, flags); +} + +#endif + +#endif /* MLX5_DOORBELL_H */ diff --git a/include/linux/mlx5/driver.h b/include/linux/mlx5/driver.h new file mode 100644 index 000000000000..e47f1e4c9b03 --- /dev/null +++ b/include/linux/mlx5/driver.h @@ -0,0 +1,769 @@ +/* + * Copyright (c) 2013, Mellanox Technologies inc. All rights reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * OpenIB.org BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#ifndef MLX5_DRIVER_H +#define MLX5_DRIVER_H + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +enum { + MLX5_BOARD_ID_LEN = 64, + MLX5_MAX_NAME_LEN = 16, +}; + +enum { + /* one minute for the sake of bringup. Generally, commands must always + * complete and we may need to increase this timeout value + */ + MLX5_CMD_TIMEOUT_MSEC = 7200 * 1000, + MLX5_CMD_WQ_MAX_NAME = 32, +}; + +enum { + CMD_OWNER_SW = 0x0, + CMD_OWNER_HW = 0x1, + CMD_STATUS_SUCCESS = 0, +}; + +enum mlx5_sqp_t { + MLX5_SQP_SMI = 0, + MLX5_SQP_GSI = 1, + MLX5_SQP_IEEE_1588 = 2, + MLX5_SQP_SNIFFER = 3, + MLX5_SQP_SYNC_UMR = 4, +}; + +enum { + MLX5_MAX_PORTS = 2, +}; + +enum { + MLX5_EQ_VEC_PAGES = 0, + MLX5_EQ_VEC_CMD = 1, + MLX5_EQ_VEC_ASYNC = 2, + MLX5_EQ_VEC_COMP_BASE, +}; + +enum { + MLX5_MAX_EQ_NAME = 20 +}; + +enum { + MLX5_ATOMIC_MODE_IB_COMP = 1 << 16, + MLX5_ATOMIC_MODE_CX = 2 << 16, + MLX5_ATOMIC_MODE_8B = 3 << 16, + MLX5_ATOMIC_MODE_16B = 4 << 16, + MLX5_ATOMIC_MODE_32B = 5 << 16, + MLX5_ATOMIC_MODE_64B = 6 << 16, + MLX5_ATOMIC_MODE_128B = 7 << 16, + MLX5_ATOMIC_MODE_256B = 8 << 16, +}; + +enum { + MLX5_CMD_OP_QUERY_HCA_CAP = 0x100, + MLX5_CMD_OP_QUERY_ADAPTER = 0x101, + MLX5_CMD_OP_INIT_HCA = 0x102, + MLX5_CMD_OP_TEARDOWN_HCA = 0x103, + MLX5_CMD_OP_QUERY_PAGES = 0x107, + MLX5_CMD_OP_MANAGE_PAGES = 0x108, + MLX5_CMD_OP_SET_HCA_CAP = 0x109, + + MLX5_CMD_OP_CREATE_MKEY = 0x200, + MLX5_CMD_OP_QUERY_MKEY = 0x201, + MLX5_CMD_OP_DESTROY_MKEY = 0x202, + MLX5_CMD_OP_QUERY_SPECIAL_CONTEXTS = 0x203, + + MLX5_CMD_OP_CREATE_EQ = 0x301, + MLX5_CMD_OP_DESTROY_EQ = 0x302, + MLX5_CMD_OP_QUERY_EQ = 0x303, + + MLX5_CMD_OP_CREATE_CQ = 0x400, + MLX5_CMD_OP_DESTROY_CQ = 0x401, + MLX5_CMD_OP_QUERY_CQ = 0x402, + MLX5_CMD_OP_MODIFY_CQ = 0x403, + + MLX5_CMD_OP_CREATE_QP = 0x500, + MLX5_CMD_OP_DESTROY_QP = 0x501, + MLX5_CMD_OP_RST2INIT_QP = 0x502, + MLX5_CMD_OP_INIT2RTR_QP = 0x503, + MLX5_CMD_OP_RTR2RTS_QP = 0x504, + MLX5_CMD_OP_RTS2RTS_QP = 0x505, + MLX5_CMD_OP_SQERR2RTS_QP = 0x506, + MLX5_CMD_OP_2ERR_QP = 0x507, + MLX5_CMD_OP_RTS2SQD_QP = 0x508, + MLX5_CMD_OP_SQD2RTS_QP = 0x509, + MLX5_CMD_OP_2RST_QP = 0x50a, + MLX5_CMD_OP_QUERY_QP = 0x50b, + MLX5_CMD_OP_CONF_SQP = 0x50c, + MLX5_CMD_OP_MAD_IFC = 0x50d, + MLX5_CMD_OP_INIT2INIT_QP = 0x50e, + MLX5_CMD_OP_SUSPEND_QP = 0x50f, + MLX5_CMD_OP_UNSUSPEND_QP = 0x510, + MLX5_CMD_OP_SQD2SQD_QP = 0x511, + MLX5_CMD_OP_ALLOC_QP_COUNTER_SET = 0x512, + MLX5_CMD_OP_DEALLOC_QP_COUNTER_SET = 0x513, + MLX5_CMD_OP_QUERY_QP_COUNTER_SET = 0x514, + + MLX5_CMD_OP_CREATE_PSV = 0x600, + MLX5_CMD_OP_DESTROY_PSV = 0x601, + MLX5_CMD_OP_QUERY_PSV = 0x602, + MLX5_CMD_OP_QUERY_SIG_RULE_TABLE = 0x603, + MLX5_CMD_OP_QUERY_BLOCK_SIZE_TABLE = 0x604, + + MLX5_CMD_OP_CREATE_SRQ = 0x700, + MLX5_CMD_OP_DESTROY_SRQ = 0x701, + MLX5_CMD_OP_QUERY_SRQ = 0x702, + MLX5_CMD_OP_ARM_RQ = 0x703, + MLX5_CMD_OP_RESIZE_SRQ = 0x704, + + MLX5_CMD_OP_ALLOC_PD = 0x800, + MLX5_CMD_OP_DEALLOC_PD = 0x801, + MLX5_CMD_OP_ALLOC_UAR = 0x802, + MLX5_CMD_OP_DEALLOC_UAR = 0x803, + + MLX5_CMD_OP_ATTACH_TO_MCG = 0x806, + MLX5_CMD_OP_DETACH_FROM_MCG = 0x807, + + + MLX5_CMD_OP_ALLOC_XRCD = 0x80e, + MLX5_CMD_OP_DEALLOC_XRCD = 0x80f, + + MLX5_CMD_OP_ACCESS_REG = 0x805, + MLX5_CMD_OP_MAX = 0x810, +}; + +enum { + MLX5_REG_PCAP = 0x5001, + MLX5_REG_PMTU = 0x5003, + MLX5_REG_PTYS = 0x5004, + MLX5_REG_PAOS = 0x5006, + MLX5_REG_PMAOS = 0x5012, + MLX5_REG_PUDE = 0x5009, + MLX5_REG_PMPE = 0x5010, + MLX5_REG_PELC = 0x500e, + MLX5_REG_PMLP = 0, /* TBD */ + MLX5_REG_NODE_DESC = 0x6001, + MLX5_REG_HOST_ENDIANNESS = 0x7004, +}; + +enum dbg_rsc_type { + MLX5_DBG_RSC_QP, + MLX5_DBG_RSC_EQ, + MLX5_DBG_RSC_CQ, +}; + +struct mlx5_field_desc { + struct dentry *dent; + int i; +}; + +struct mlx5_rsc_debug { + struct mlx5_core_dev *dev; + void *object; + enum dbg_rsc_type type; + struct dentry *root; + struct mlx5_field_desc fields[0]; +}; + +enum mlx5_dev_event { + MLX5_DEV_EVENT_SYS_ERROR, + MLX5_DEV_EVENT_PORT_UP, + MLX5_DEV_EVENT_PORT_DOWN, + MLX5_DEV_EVENT_PORT_INITIALIZED, + MLX5_DEV_EVENT_LID_CHANGE, + MLX5_DEV_EVENT_PKEY_CHANGE, + MLX5_DEV_EVENT_GUID_CHANGE, + MLX5_DEV_EVENT_CLIENT_REREG, +}; + +struct mlx5_uuar_info { + struct mlx5_uar *uars; + int num_uars; + int num_low_latency_uuars; + unsigned long *bitmap; + unsigned int *count; + struct mlx5_bf *bfs; + + /* + * protect uuar allocation data structs + */ + struct mutex lock; +}; + +struct mlx5_bf { + void __iomem *reg; + void __iomem *regreg; + int buf_size; + struct mlx5_uar *uar; + unsigned long offset; + int need_lock; + /* protect blue flame buffer selection when needed + */ + spinlock_t lock; + + /* serialize 64 bit writes when done as two 32 bit accesses + */ + spinlock_t lock32; + int uuarn; +}; + +struct mlx5_cmd_first { + __be32 data[4]; +}; + +struct mlx5_cmd_msg { + struct list_head list; + struct cache_ent *cache; + u32 len; + struct mlx5_cmd_first first; + struct mlx5_cmd_mailbox *next; +}; + +struct mlx5_cmd_debug { + struct dentry *dbg_root; + struct dentry *dbg_in; + struct dentry *dbg_out; + struct dentry *dbg_outlen; + struct dentry *dbg_status; + struct dentry *dbg_run; + void *in_msg; + void *out_msg; + u8 status; + u16 inlen; + u16 outlen; +}; + +struct cache_ent { + /* protect block chain allocations + */ + spinlock_t lock; + struct list_head head; +}; + +struct cmd_msg_cache { + struct cache_ent large; + struct cache_ent med; + +}; + +struct mlx5_cmd_stats { + u64 sum; + u64 n; + struct dentry *root; + struct dentry *avg; + struct dentry *count; + /* protect command average calculations */ + spinlock_t lock; +}; + +struct mlx5_cmd { + void *cmd_buf; + dma_addr_t dma; + u16 cmdif_rev; + u8 log_sz; + u8 log_stride; + int max_reg_cmds; + int events; + u32 __iomem *vector; + + /* protect command queue allocations + */ + spinlock_t alloc_lock; + + /* protect token allocations + */ + spinlock_t token_lock; + u8 token; + unsigned long bitmask; + char wq_name[MLX5_CMD_WQ_MAX_NAME]; + struct workqueue_struct *wq; + struct semaphore sem; + struct semaphore pages_sem; + int mode; + struct mlx5_cmd_work_ent *ent_arr[MLX5_MAX_COMMANDS]; + struct pci_pool *pool; + struct mlx5_cmd_debug dbg; + struct cmd_msg_cache cache; + int checksum_disabled; + struct mlx5_cmd_stats stats[MLX5_CMD_OP_MAX]; +}; + +struct mlx5_port_caps { + int gid_table_len; + int pkey_table_len; +}; + +struct mlx5_caps { + u8 log_max_eq; + u8 log_max_cq; + u8 log_max_qp; + u8 log_max_mkey; + u8 log_max_pd; + u8 log_max_srq; + u32 max_cqes; + int max_wqes; + int max_sq_desc_sz; + int max_rq_desc_sz; + u64 flags; + u16 stat_rate_support; + int log_max_msg; + int num_ports; + int max_ra_res_qp; + int max_ra_req_qp; + int max_srq_wqes; + int bf_reg_size; + int bf_regs_per_page; + struct mlx5_port_caps port[MLX5_MAX_PORTS]; + u8 ext_port_cap[MLX5_MAX_PORTS]; + int max_vf; + u32 reserved_lkey; + u8 local_ca_ack_delay; + u8 log_max_mcg; + u16 max_qp_mcg; + int min_page_sz; +}; + +struct mlx5_cmd_mailbox { + void *buf; + dma_addr_t dma; + struct mlx5_cmd_mailbox *next; +}; + +struct mlx5_buf_list { + void *buf; + dma_addr_t map; +}; + +struct mlx5_buf { + struct mlx5_buf_list direct; + struct mlx5_buf_list *page_list; + int nbufs; + int npages; + int page_shift; + int size; +}; + +struct mlx5_eq { + struct mlx5_core_dev *dev; + __be32 __iomem *doorbell; + u32 cons_index; + struct mlx5_buf buf; + int size; + u8 irqn; + u8 eqn; + int nent; + u64 mask; + char name[MLX5_MAX_EQ_NAME]; + struct list_head list; + int index; + struct mlx5_rsc_debug *dbg; +}; + + +struct mlx5_core_mr { + u64 iova; + u64 size; + u32 key; + u32 pd; + u32 access; +}; + +struct mlx5_core_srq { + u32 srqn; + int max; + int max_gs; + int max_avail_gather; + int wqe_shift; + void (*event) (struct mlx5_core_srq *, enum mlx5_event); + + atomic_t refcount; + struct completion free; +}; + +struct mlx5_eq_table { + void __iomem *update_ci; + void __iomem *update_arm_ci; + struct list_head *comp_eq_head; + struct mlx5_eq pages_eq; + struct mlx5_eq async_eq; + struct mlx5_eq cmd_eq; + struct msix_entry *msix_arr; + int num_comp_vectors; + /* protect EQs list + */ + spinlock_t lock; +}; + +struct mlx5_uar { + u32 index; + struct list_head bf_list; + unsigned free_bf_bmap; + void __iomem *wc_map; + void __iomem *map; +}; + + +struct mlx5_core_health { + struct health_buffer __iomem *health; + __be32 __iomem *health_counter; + struct timer_list timer; + struct list_head list; + u32 prev; + int miss_counter; +}; + +struct mlx5_cq_table { + /* protect radix tree + */ + spinlock_t lock; + struct radix_tree_root tree; +}; + +struct mlx5_qp_table { + /* protect radix tree + */ + spinlock_t lock; + struct radix_tree_root tree; +}; + +struct mlx5_srq_table { + /* protect radix tree + */ + spinlock_t lock; + struct radix_tree_root tree; +}; + +struct mlx5_priv { + char name[MLX5_MAX_NAME_LEN]; + struct mlx5_eq_table eq_table; + struct mlx5_uuar_info uuari; + MLX5_DECLARE_DOORBELL_LOCK(cq_uar_lock); + + /* pages stuff */ + struct workqueue_struct *pg_wq; + struct rb_root page_root; + int fw_pages; + int reg_pages; + + struct mlx5_core_health health; + + struct mlx5_srq_table srq_table; + + /* start: qp staff */ + struct mlx5_qp_table qp_table; + struct dentry *qp_debugfs; + struct dentry *eq_debugfs; + struct dentry *cq_debugfs; + struct dentry *cmdif_debugfs; + /* end: qp staff */ + + /* start: cq staff */ + struct mlx5_cq_table cq_table; + /* end: cq staff */ + + /* start: alloc staff */ + struct mutex pgdir_mutex; + struct list_head pgdir_list; + /* end: alloc staff */ + struct dentry *dbg_root; + + /* protect mkey key part */ + spinlock_t mkey_lock; + u8 mkey_key; +}; + +struct mlx5_core_dev { + struct pci_dev *pdev; + u8 rev_id; + char board_id[MLX5_BOARD_ID_LEN]; + struct mlx5_cmd cmd; + struct mlx5_caps caps; + phys_addr_t iseg_base; + struct mlx5_init_seg __iomem *iseg; + void (*event) (struct mlx5_core_dev *dev, + enum mlx5_dev_event event, + void *data); + struct mlx5_priv priv; + struct mlx5_profile *profile; + atomic_t num_qps; +}; + +struct mlx5_db { + __be32 *db; + union { + struct mlx5_db_pgdir *pgdir; + struct mlx5_ib_user_db_page *user_page; + } u; + dma_addr_t dma; + int index; +}; + +enum { + MLX5_DB_PER_PAGE = PAGE_SIZE / L1_CACHE_BYTES, +}; + +enum { + MLX5_COMP_EQ_SIZE = 1024, +}; + +struct mlx5_db_pgdir { + struct list_head list; + DECLARE_BITMAP(bitmap, MLX5_DB_PER_PAGE); + __be32 *db_page; + dma_addr_t db_dma; +}; + +typedef void (*mlx5_cmd_cbk_t)(int status, void *context); + +struct mlx5_cmd_work_ent { + struct mlx5_cmd_msg *in; + struct mlx5_cmd_msg *out; + mlx5_cmd_cbk_t callback; + void *context; + int idx; + struct completion done; + struct mlx5_cmd *cmd; + struct work_struct work; + struct mlx5_cmd_layout *lay; + int ret; + int page_queue; + u8 status; + u8 token; + struct timespec ts1; + struct timespec ts2; +}; + +struct mlx5_pas { + u64 pa; + u8 log_sz; +}; + +static inline void *mlx5_buf_offset(struct mlx5_buf *buf, int offset) +{ + if (likely(BITS_PER_LONG == 64 || buf->nbufs == 1)) + return buf->direct.buf + offset; + else + return buf->page_list[offset >> PAGE_SHIFT].buf + + (offset & (PAGE_SIZE - 1)); +} + +extern struct workqueue_struct *mlx5_core_wq; + +#define STRUCT_FIELD(header, field) \ + .struct_offset_bytes = offsetof(struct ib_unpacked_ ## header, field), \ + .struct_size_bytes = sizeof((struct ib_unpacked_ ## header *)0)->field + +struct ib_field { + size_t struct_offset_bytes; + size_t struct_size_bytes; + int offset_bits; + int size_bits; +}; + +static inline struct mlx5_core_dev *pci2mlx5_core_dev(struct pci_dev *pdev) +{ + return pci_get_drvdata(pdev); +} + +extern struct dentry *mlx5_debugfs_root; + +static inline u16 fw_rev_maj(struct mlx5_core_dev *dev) +{ + return ioread32be(&dev->iseg->fw_rev) & 0xffff; +} + +static inline u16 fw_rev_min(struct mlx5_core_dev *dev) +{ + return ioread32be(&dev->iseg->fw_rev) >> 16; +} + +static inline u16 fw_rev_sub(struct mlx5_core_dev *dev) +{ + return ioread32be(&dev->iseg->cmdif_rev_fw_sub) & 0xffff; +} + +static inline u16 cmdif_rev(struct mlx5_core_dev *dev) +{ + return ioread32be(&dev->iseg->cmdif_rev_fw_sub) >> 16; +} + +static inline void *mlx5_vzalloc(unsigned long size) +{ + void *rtn; + + rtn = kzalloc(size, GFP_KERNEL | __GFP_NOWARN); + if (!rtn) + rtn = vzalloc(size); + return rtn; +} + +static inline void mlx5_vfree(const void *addr) +{ + if (addr && is_vmalloc_addr(addr)) + vfree(addr); + else + kfree(addr); +} + +int mlx5_dev_init(struct mlx5_core_dev *dev, struct pci_dev *pdev); +void mlx5_dev_cleanup(struct mlx5_core_dev *dev); +int mlx5_cmd_init(struct mlx5_core_dev *dev); +void mlx5_cmd_cleanup(struct mlx5_core_dev *dev); +void mlx5_cmd_use_events(struct mlx5_core_dev *dev); +void mlx5_cmd_use_polling(struct mlx5_core_dev *dev); +int mlx5_cmd_status_to_err(struct mlx5_outbox_hdr *hdr); +int mlx5_cmd_exec(struct mlx5_core_dev *dev, void *in, int in_size, void *out, + int out_size); +int mlx5_cmd_alloc_uar(struct mlx5_core_dev *dev, u32 *uarn); +int mlx5_cmd_free_uar(struct mlx5_core_dev *dev, u32 uarn); +int mlx5_alloc_uuars(struct mlx5_core_dev *dev, struct mlx5_uuar_info *uuari); +int mlx5_free_uuars(struct mlx5_core_dev *dev, struct mlx5_uuar_info *uuari); +void mlx5_health_cleanup(void); +void __init mlx5_health_init(void); +void mlx5_start_health_poll(struct mlx5_core_dev *dev); +void mlx5_stop_health_poll(struct mlx5_core_dev *dev); +int mlx5_buf_alloc(struct mlx5_core_dev *dev, int size, int max_direct, + struct mlx5_buf *buf); +void mlx5_buf_free(struct mlx5_core_dev *dev, struct mlx5_buf *buf); +struct mlx5_cmd_mailbox *mlx5_alloc_cmd_mailbox_chain(struct mlx5_core_dev *dev, + gfp_t flags, int npages); +void mlx5_free_cmd_mailbox_chain(struct mlx5_core_dev *dev, + struct mlx5_cmd_mailbox *head); +int mlx5_core_create_srq(struct mlx5_core_dev *dev, struct mlx5_core_srq *srq, + struct mlx5_create_srq_mbox_in *in, int inlen); +int mlx5_core_destroy_srq(struct mlx5_core_dev *dev, struct mlx5_core_srq *srq); +int mlx5_core_query_srq(struct mlx5_core_dev *dev, struct mlx5_core_srq *srq, + struct mlx5_query_srq_mbox_out *out); +int mlx5_core_arm_srq(struct mlx5_core_dev *dev, struct mlx5_core_srq *srq, + u16 lwm, int is_srq); +int mlx5_core_create_mkey(struct mlx5_core_dev *dev, struct mlx5_core_mr *mr, + struct mlx5_create_mkey_mbox_in *in, int inlen); +int mlx5_core_destroy_mkey(struct mlx5_core_dev *dev, struct mlx5_core_mr *mr); +int mlx5_core_query_mkey(struct mlx5_core_dev *dev, struct mlx5_core_mr *mr, + struct mlx5_query_mkey_mbox_out *out, int outlen); +int mlx5_core_dump_fill_mkey(struct mlx5_core_dev *dev, struct mlx5_core_mr *mr, + u32 *mkey); +int mlx5_core_alloc_pd(struct mlx5_core_dev *dev, u32 *pdn); +int mlx5_core_dealloc_pd(struct mlx5_core_dev *dev, u32 pdn); +int mlx5_core_mad_ifc(struct mlx5_core_dev *dev, void *inb, void *outb, + u16 opmod, int port); +void mlx5_pagealloc_init(struct mlx5_core_dev *dev); +void mlx5_pagealloc_cleanup(struct mlx5_core_dev *dev); +int mlx5_pagealloc_start(struct mlx5_core_dev *dev); +void mlx5_pagealloc_stop(struct mlx5_core_dev *dev); +void mlx5_core_req_pages_handler(struct mlx5_core_dev *dev, u16 func_id, + s16 npages); +int mlx5_satisfy_startup_pages(struct mlx5_core_dev *dev); +int mlx5_reclaim_startup_pages(struct mlx5_core_dev *dev); +void mlx5_register_debugfs(void); +void mlx5_unregister_debugfs(void); +int mlx5_eq_init(struct mlx5_core_dev *dev); +void mlx5_eq_cleanup(struct mlx5_core_dev *dev); +void mlx5_fill_page_array(struct mlx5_buf *buf, __be64 *pas); +void mlx5_cq_completion(struct mlx5_core_dev *dev, u32 cqn); +void mlx5_qp_event(struct mlx5_core_dev *dev, u32 qpn, int event_type); +void mlx5_srq_event(struct mlx5_core_dev *dev, u32 srqn, int event_type); +struct mlx5_core_srq *mlx5_core_get_srq(struct mlx5_core_dev *dev, u32 srqn); +void mlx5_cmd_comp_handler(struct mlx5_core_dev *dev, unsigned long vector); +void mlx5_cq_event(struct mlx5_core_dev *dev, u32 cqn, int event_type); +int mlx5_create_map_eq(struct mlx5_core_dev *dev, struct mlx5_eq *eq, u8 vecidx, + int nent, u64 mask, const char *name, struct mlx5_uar *uar); +int mlx5_destroy_unmap_eq(struct mlx5_core_dev *dev, struct mlx5_eq *eq); +int mlx5_start_eqs(struct mlx5_core_dev *dev); +int mlx5_stop_eqs(struct mlx5_core_dev *dev); +int mlx5_core_attach_mcg(struct mlx5_core_dev *dev, union ib_gid *mgid, u32 qpn); +int mlx5_core_detach_mcg(struct mlx5_core_dev *dev, union ib_gid *mgid, u32 qpn); + +int mlx5_qp_debugfs_init(struct mlx5_core_dev *dev); +void mlx5_qp_debugfs_cleanup(struct mlx5_core_dev *dev); +int mlx5_core_access_reg(struct mlx5_core_dev *dev, void *data_in, + int size_in, void *data_out, int size_out, + u16 reg_num, int arg, int write); +int mlx5_set_port_caps(struct mlx5_core_dev *dev, int port_num, u32 caps); + +int mlx5_debug_eq_add(struct mlx5_core_dev *dev, struct mlx5_eq *eq); +void mlx5_debug_eq_remove(struct mlx5_core_dev *dev, struct mlx5_eq *eq); +int mlx5_core_eq_query(struct mlx5_core_dev *dev, struct mlx5_eq *eq, + struct mlx5_query_eq_mbox_out *out, int outlen); +int mlx5_eq_debugfs_init(struct mlx5_core_dev *dev); +void mlx5_eq_debugfs_cleanup(struct mlx5_core_dev *dev); +int mlx5_cq_debugfs_init(struct mlx5_core_dev *dev); +void mlx5_cq_debugfs_cleanup(struct mlx5_core_dev *dev); +int mlx5_db_alloc(struct mlx5_core_dev *dev, struct mlx5_db *db); +void mlx5_db_free(struct mlx5_core_dev *dev, struct mlx5_db *db); + +typedef void (*health_handler_t)(struct pci_dev *pdev, void *buf, int size); +int mlx5_register_health_report_handler(health_handler_t handler); +void mlx5_unregister_health_report_handler(void); +const char *mlx5_command_str(int command); +int mlx5_cmdif_debugfs_init(struct mlx5_core_dev *dev); +void mlx5_cmdif_debugfs_cleanup(struct mlx5_core_dev *dev); + +static inline u32 mlx5_mkey_to_idx(u32 mkey) +{ + return mkey >> 8; +} + +static inline u32 mlx5_idx_to_mkey(u32 mkey_idx) +{ + return mkey_idx << 8; +} + +enum { + MLX5_PROF_MASK_QP_SIZE = (u64)1 << 0, + MLX5_PROF_MASK_CMDIF_CSUM = (u64)1 << 1, + MLX5_PROF_MASK_MR_CACHE = (u64)1 << 2, +}; + +enum { + MAX_MR_CACHE_ENTRIES = 16, +}; + +struct mlx5_profile { + u64 mask; + u32 log_max_qp; + int cmdif_csum; + struct { + int size; + int limit; + } mr_cache[MAX_MR_CACHE_ENTRIES]; +}; + +#endif /* MLX5_DRIVER_H */ diff --git a/include/linux/mlx5/qp.h b/include/linux/mlx5/qp.h new file mode 100644 index 000000000000..d9e3eacb3a7f --- /dev/null +++ b/include/linux/mlx5/qp.h @@ -0,0 +1,467 @@ +/* + * Copyright (c) 2013, Mellanox Technologies inc. All rights reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * OpenIB.org BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#ifndef MLX5_QP_H +#define MLX5_QP_H + +#include +#include + +#define MLX5_INVALID_LKEY 0x100 + +enum mlx5_qp_optpar { + MLX5_QP_OPTPAR_ALT_ADDR_PATH = 1 << 0, + MLX5_QP_OPTPAR_RRE = 1 << 1, + MLX5_QP_OPTPAR_RAE = 1 << 2, + MLX5_QP_OPTPAR_RWE = 1 << 3, + MLX5_QP_OPTPAR_PKEY_INDEX = 1 << 4, + MLX5_QP_OPTPAR_Q_KEY = 1 << 5, + MLX5_QP_OPTPAR_RNR_TIMEOUT = 1 << 6, + MLX5_QP_OPTPAR_PRIMARY_ADDR_PATH = 1 << 7, + MLX5_QP_OPTPAR_SRA_MAX = 1 << 8, + MLX5_QP_OPTPAR_RRA_MAX = 1 << 9, + MLX5_QP_OPTPAR_PM_STATE = 1 << 10, + MLX5_QP_OPTPAR_RETRY_COUNT = 1 << 12, + MLX5_QP_OPTPAR_RNR_RETRY = 1 << 13, + MLX5_QP_OPTPAR_ACK_TIMEOUT = 1 << 14, + MLX5_QP_OPTPAR_PRI_PORT = 1 << 16, + MLX5_QP_OPTPAR_SRQN = 1 << 18, + MLX5_QP_OPTPAR_CQN_RCV = 1 << 19, + MLX5_QP_OPTPAR_DC_HS = 1 << 20, + MLX5_QP_OPTPAR_DC_KEY = 1 << 21, +}; + +enum mlx5_qp_state { + MLX5_QP_STATE_RST = 0, + MLX5_QP_STATE_INIT = 1, + MLX5_QP_STATE_RTR = 2, + MLX5_QP_STATE_RTS = 3, + MLX5_QP_STATE_SQER = 4, + MLX5_QP_STATE_SQD = 5, + MLX5_QP_STATE_ERR = 6, + MLX5_QP_STATE_SQ_DRAINING = 7, + MLX5_QP_STATE_SUSPENDED = 9, + MLX5_QP_NUM_STATE +}; + +enum { + MLX5_QP_ST_RC = 0x0, + MLX5_QP_ST_UC = 0x1, + MLX5_QP_ST_UD = 0x2, + MLX5_QP_ST_XRC = 0x3, + MLX5_QP_ST_MLX = 0x4, + MLX5_QP_ST_DCI = 0x5, + MLX5_QP_ST_DCT = 0x6, + MLX5_QP_ST_QP0 = 0x7, + MLX5_QP_ST_QP1 = 0x8, + MLX5_QP_ST_RAW_ETHERTYPE = 0x9, + MLX5_QP_ST_RAW_IPV6 = 0xa, + MLX5_QP_ST_SNIFFER = 0xb, + MLX5_QP_ST_SYNC_UMR = 0xe, + MLX5_QP_ST_PTP_1588 = 0xd, + MLX5_QP_ST_REG_UMR = 0xc, + MLX5_QP_ST_MAX +}; + +enum { + MLX5_QP_PM_MIGRATED = 0x3, + MLX5_QP_PM_ARMED = 0x0, + MLX5_QP_PM_REARM = 0x1 +}; + +enum { + MLX5_NON_ZERO_RQ = 0 << 24, + MLX5_SRQ_RQ = 1 << 24, + MLX5_CRQ_RQ = 2 << 24, + MLX5_ZERO_LEN_RQ = 3 << 24 +}; + +enum { + /* params1 */ + MLX5_QP_BIT_SRE = 1 << 15, + MLX5_QP_BIT_SWE = 1 << 14, + MLX5_QP_BIT_SAE = 1 << 13, + /* params2 */ + MLX5_QP_BIT_RRE = 1 << 15, + MLX5_QP_BIT_RWE = 1 << 14, + MLX5_QP_BIT_RAE = 1 << 13, + MLX5_QP_BIT_RIC = 1 << 4, +}; + +enum { + MLX5_WQE_CTRL_CQ_UPDATE = 2 << 2, + MLX5_WQE_CTRL_SOLICITED = 1 << 1, +}; + +enum { + MLX5_SEND_WQE_BB = 64, +}; + +enum { + MLX5_WQE_FMR_PERM_LOCAL_READ = 1 << 27, + MLX5_WQE_FMR_PERM_LOCAL_WRITE = 1 << 28, + MLX5_WQE_FMR_PERM_REMOTE_READ = 1 << 29, + MLX5_WQE_FMR_PERM_REMOTE_WRITE = 1 << 30, + MLX5_WQE_FMR_PERM_ATOMIC = 1 << 31 +}; + +enum { + MLX5_FENCE_MODE_NONE = 0 << 5, + MLX5_FENCE_MODE_INITIATOR_SMALL = 1 << 5, + MLX5_FENCE_MODE_STRONG_ORDERING = 3 << 5, + MLX5_FENCE_MODE_SMALL_AND_FENCE = 4 << 5, +}; + +enum { + MLX5_QP_LAT_SENSITIVE = 1 << 28, + MLX5_QP_ENABLE_SIG = 1 << 31, +}; + +enum { + MLX5_RCV_DBR = 0, + MLX5_SND_DBR = 1, +}; + +struct mlx5_wqe_fmr_seg { + __be32 flags; + __be32 mem_key; + __be64 buf_list; + __be64 start_addr; + __be64 reg_len; + __be32 offset; + __be32 page_size; + u32 reserved[2]; +}; + +struct mlx5_wqe_ctrl_seg { + __be32 opmod_idx_opcode; + __be32 qpn_ds; + u8 signature; + u8 rsvd[2]; + u8 fm_ce_se; + __be32 imm; +}; + +struct mlx5_wqe_xrc_seg { + __be32 xrc_srqn; + u8 rsvd[12]; +}; + +struct mlx5_wqe_masked_atomic_seg { + __be64 swap_add; + __be64 compare; + __be64 swap_add_mask; + __be64 compare_mask; +}; + +struct mlx5_av { + union { + struct { + __be32 qkey; + __be32 reserved; + } qkey; + __be64 dc_key; + } key; + __be32 dqp_dct; + u8 stat_rate_sl; + u8 fl_mlid; + __be16 rlid; + u8 reserved0[10]; + u8 tclass; + u8 hop_limit; + __be32 grh_gid_fl; + u8 rgid[16]; +}; + +struct mlx5_wqe_datagram_seg { + struct mlx5_av av; +}; + +struct mlx5_wqe_raddr_seg { + __be64 raddr; + __be32 rkey; + u32 reserved; +}; + +struct mlx5_wqe_atomic_seg { + __be64 swap_add; + __be64 compare; +}; + +struct mlx5_wqe_data_seg { + __be32 byte_count; + __be32 lkey; + __be64 addr; +}; + +struct mlx5_wqe_umr_ctrl_seg { + u8 flags; + u8 rsvd0[3]; + __be16 klm_octowords; + __be16 bsf_octowords; + __be64 mkey_mask; + u8 rsvd1[32]; +}; + +struct mlx5_seg_set_psv { + __be32 psv_num; + __be16 syndrome; + __be16 status; + __be32 transient_sig; + __be32 ref_tag; +}; + +struct mlx5_seg_get_psv { + u8 rsvd[19]; + u8 num_psv; + __be32 l_key; + __be64 va; + __be32 psv_index[4]; +}; + +struct mlx5_seg_check_psv { + u8 rsvd0[2]; + __be16 err_coalescing_op; + u8 rsvd1[2]; + __be16 xport_err_op; + u8 rsvd2[2]; + __be16 xport_err_mask; + u8 rsvd3[7]; + u8 num_psv; + __be32 l_key; + __be64 va; + __be32 psv_index[4]; +}; + +struct mlx5_rwqe_sig { + u8 rsvd0[4]; + u8 signature; + u8 rsvd1[11]; +}; + +struct mlx5_wqe_signature_seg { + u8 rsvd0[4]; + u8 signature; + u8 rsvd1[11]; +}; + +struct mlx5_wqe_inline_seg { + __be32 byte_count; +}; + +struct mlx5_core_qp { + void (*event) (struct mlx5_core_qp *, int); + int qpn; + atomic_t refcount; + struct completion free; + struct mlx5_rsc_debug *dbg; + int pid; +}; + +struct mlx5_qp_path { + u8 fl; + u8 rsvd3; + u8 free_ar; + u8 pkey_index; + u8 rsvd0; + u8 grh_mlid; + __be16 rlid; + u8 ackto_lt; + u8 mgid_index; + u8 static_rate; + u8 hop_limit; + __be32 tclass_flowlabel; + u8 rgid[16]; + u8 rsvd1[4]; + u8 sl; + u8 port; + u8 rsvd2[6]; +}; + +struct mlx5_qp_context { + __be32 flags; + __be32 flags_pd; + u8 mtu_msgmax; + u8 rq_size_stride; + __be16 sq_crq_size; + __be32 qp_counter_set_usr_page; + __be32 wire_qpn; + __be32 log_pg_sz_remote_qpn; + struct mlx5_qp_path pri_path; + struct mlx5_qp_path alt_path; + __be32 params1; + u8 reserved2[4]; + __be32 next_send_psn; + __be32 cqn_send; + u8 reserved3[8]; + __be32 last_acked_psn; + __be32 ssn; + __be32 params2; + __be32 rnr_nextrecvpsn; + __be32 xrcd; + __be32 cqn_recv; + __be64 db_rec_addr; + __be32 qkey; + __be32 rq_type_srqn; + __be32 rmsn; + __be16 hw_sq_wqe_counter; + __be16 sw_sq_wqe_counter; + __be16 hw_rcyclic_byte_counter; + __be16 hw_rq_counter; + __be16 sw_rcyclic_byte_counter; + __be16 sw_rq_counter; + u8 rsvd0[5]; + u8 cgs; + u8 cs_req; + u8 cs_res; + __be64 dc_access_key; + u8 rsvd1[24]; +}; + +struct mlx5_create_qp_mbox_in { + struct mlx5_inbox_hdr hdr; + __be32 input_qpn; + u8 rsvd0[4]; + __be32 opt_param_mask; + u8 rsvd1[4]; + struct mlx5_qp_context ctx; + u8 rsvd3[16]; + __be64 pas[0]; +}; + +struct mlx5_create_qp_mbox_out { + struct mlx5_outbox_hdr hdr; + __be32 qpn; + u8 rsvd0[4]; +}; + +struct mlx5_destroy_qp_mbox_in { + struct mlx5_inbox_hdr hdr; + __be32 qpn; + u8 rsvd0[4]; +}; + +struct mlx5_destroy_qp_mbox_out { + struct mlx5_outbox_hdr hdr; + u8 rsvd0[8]; +}; + +struct mlx5_modify_qp_mbox_in { + struct mlx5_inbox_hdr hdr; + __be32 qpn; + u8 rsvd1[4]; + __be32 optparam; + u8 rsvd0[4]; + struct mlx5_qp_context ctx; +}; + +struct mlx5_modify_qp_mbox_out { + struct mlx5_outbox_hdr hdr; + u8 rsvd0[8]; +}; + +struct mlx5_query_qp_mbox_in { + struct mlx5_inbox_hdr hdr; + __be32 qpn; + u8 rsvd[4]; +}; + +struct mlx5_query_qp_mbox_out { + struct mlx5_outbox_hdr hdr; + u8 rsvd1[8]; + __be32 optparam; + u8 rsvd0[4]; + struct mlx5_qp_context ctx; + u8 rsvd2[16]; + __be64 pas[0]; +}; + +struct mlx5_conf_sqp_mbox_in { + struct mlx5_inbox_hdr hdr; + __be32 qpn; + u8 rsvd[3]; + u8 type; +}; + +struct mlx5_conf_sqp_mbox_out { + struct mlx5_outbox_hdr hdr; + u8 rsvd[8]; +}; + +struct mlx5_alloc_xrcd_mbox_in { + struct mlx5_inbox_hdr hdr; + u8 rsvd[8]; +}; + +struct mlx5_alloc_xrcd_mbox_out { + struct mlx5_outbox_hdr hdr; + __be32 xrcdn; + u8 rsvd[4]; +}; + +struct mlx5_dealloc_xrcd_mbox_in { + struct mlx5_inbox_hdr hdr; + __be32 xrcdn; + u8 rsvd[4]; +}; + +struct mlx5_dealloc_xrcd_mbox_out { + struct mlx5_outbox_hdr hdr; + u8 rsvd[8]; +}; + +static inline struct mlx5_core_qp *__mlx5_qp_lookup(struct mlx5_core_dev *dev, u32 qpn) +{ + return radix_tree_lookup(&dev->priv.qp_table.tree, qpn); +} + +int mlx5_core_create_qp(struct mlx5_core_dev *dev, + struct mlx5_core_qp *qp, + struct mlx5_create_qp_mbox_in *in, + int inlen); +int mlx5_core_qp_modify(struct mlx5_core_dev *dev, enum mlx5_qp_state cur_state, + enum mlx5_qp_state new_state, + struct mlx5_modify_qp_mbox_in *in, int sqd_event, + struct mlx5_core_qp *qp); +int mlx5_core_destroy_qp(struct mlx5_core_dev *dev, + struct mlx5_core_qp *qp); +int mlx5_core_qp_query(struct mlx5_core_dev *dev, struct mlx5_core_qp *qp, + struct mlx5_query_qp_mbox_out *out, int outlen); + +int mlx5_core_xrcd_alloc(struct mlx5_core_dev *dev, u32 *xrcdn); +int mlx5_core_xrcd_dealloc(struct mlx5_core_dev *dev, u32 xrcdn); +void mlx5_init_qp_table(struct mlx5_core_dev *dev); +void mlx5_cleanup_qp_table(struct mlx5_core_dev *dev); +int mlx5_debug_qp_add(struct mlx5_core_dev *dev, struct mlx5_core_qp *qp); +void mlx5_debug_qp_remove(struct mlx5_core_dev *dev, struct mlx5_core_qp *qp); + +#endif /* MLX5_QP_H */ diff --git a/include/linux/mlx5/srq.h b/include/linux/mlx5/srq.h new file mode 100644 index 000000000000..e1a363a33663 --- /dev/null +++ b/include/linux/mlx5/srq.h @@ -0,0 +1,41 @@ +/* + * Copyright (c) 2013, Mellanox Technologies inc. All rights reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * OpenIB.org BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#ifndef MLX5_SRQ_H +#define MLX5_SRQ_H + +#include + +void mlx5_init_srq_table(struct mlx5_core_dev *dev); +void mlx5_cleanup_srq_table(struct mlx5_core_dev *dev); + +#endif /* MLX5_SRQ_H */ -- cgit v1.2.1 From 63884c90ffa3f73a81b81f169c51c34d2b9cf75e Mon Sep 17 00:00:00 2001 From: Roland Dreier Date: Mon, 1 Jul 2013 14:15:17 -0700 Subject: mlx5: Fix parameter type of health_handler_t This deals with the sparse warning: drivers/net/ethernet/mellanox/mlx5/core/health.c:94:54: warning: incorrect type in argument 2 (different address spaces) drivers/net/ethernet/mellanox/mlx5/core/health.c:94:54: expected void *buf drivers/net/ethernet/mellanox/mlx5/core/health.c:94:54: got struct health_buffer [noderef] *health Signed-off-by: Roland Dreier --- include/linux/mlx5/driver.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include') diff --git a/include/linux/mlx5/driver.h b/include/linux/mlx5/driver.h index e47f1e4c9b03..f22e4419839b 100644 --- a/include/linux/mlx5/driver.h +++ b/include/linux/mlx5/driver.h @@ -729,7 +729,7 @@ void mlx5_cq_debugfs_cleanup(struct mlx5_core_dev *dev); int mlx5_db_alloc(struct mlx5_core_dev *dev, struct mlx5_db *db); void mlx5_db_free(struct mlx5_core_dev *dev, struct mlx5_db *db); -typedef void (*health_handler_t)(struct pci_dev *pdev, void *buf, int size); +typedef void (*health_handler_t)(struct pci_dev *pdev, struct health_buffer __iomem *buf, int size); int mlx5_register_health_report_handler(health_handler_t handler); void mlx5_unregister_health_report_handler(void); const char *mlx5_command_str(int command); -- cgit v1.2.1 From 076bb0c82a44fbe46fe2c8527a5b5b64b69f679d Mon Sep 17 00:00:00 2001 From: Eliezer Tamir Date: Wed, 10 Jul 2013 17:13:17 +0300 Subject: net: rename include/net/ll_poll.h to include/net/busy_poll.h Rename the file and correct all the places where it is included. Signed-off-by: Eliezer Tamir Signed-off-by: David S. Miller --- include/net/busy_poll.h | 183 ++++++++++++++++++++++++++++++++++++++++++++++++ include/net/ll_poll.h | 183 ------------------------------------------------ 2 files changed, 183 insertions(+), 183 deletions(-) create mode 100644 include/net/busy_poll.h delete mode 100644 include/net/ll_poll.h (limited to 'include') diff --git a/include/net/busy_poll.h b/include/net/busy_poll.h new file mode 100644 index 000000000000..76f034087743 --- /dev/null +++ b/include/net/busy_poll.h @@ -0,0 +1,183 @@ +/* + * Low Latency Sockets + * Copyright(c) 2013 Intel Corporation. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. + * + * Author: Eliezer Tamir + * + * Contact Information: + * e1000-devel Mailing List + */ + +#ifndef _LINUX_NET_LL_POLL_H +#define _LINUX_NET_LL_POLL_H + +#include +#include + +#ifdef CONFIG_NET_LL_RX_POLL + +struct napi_struct; +extern unsigned int sysctl_net_ll_read __read_mostly; +extern unsigned int sysctl_net_ll_poll __read_mostly; + +/* return values from ndo_ll_poll */ +#define LL_FLUSH_FAILED -1 +#define LL_FLUSH_BUSY -2 + +static inline bool net_busy_loop_on(void) +{ + return sysctl_net_ll_poll; +} + +/* a wrapper to make debug_smp_processor_id() happy + * we can use sched_clock() because we don't care much about precision + * we only care that the average is bounded + */ +#ifdef CONFIG_DEBUG_PREEMPT +static inline u64 busy_loop_us_clock(void) +{ + u64 rc; + + preempt_disable_notrace(); + rc = sched_clock(); + preempt_enable_no_resched_notrace(); + + return rc >> 10; +} +#else /* CONFIG_DEBUG_PREEMPT */ +static inline u64 busy_loop_us_clock(void) +{ + return sched_clock() >> 10; +} +#endif /* CONFIG_DEBUG_PREEMPT */ + +static inline unsigned long sk_busy_loop_end_time(struct sock *sk) +{ + return busy_loop_us_clock() + ACCESS_ONCE(sk->sk_ll_usec); +} + +/* in poll/select we use the global sysctl_net_ll_poll value */ +static inline unsigned long busy_loop_end_time(void) +{ + return busy_loop_us_clock() + ACCESS_ONCE(sysctl_net_ll_poll); +} + +static inline bool sk_can_busy_loop(struct sock *sk) +{ + return sk->sk_ll_usec && sk->sk_napi_id && + !need_resched() && !signal_pending(current); +} + + +static inline bool busy_loop_timeout(unsigned long end_time) +{ + unsigned long now = busy_loop_us_clock(); + + return time_after(now, end_time); +} + +/* when used in sock_poll() nonblock is known at compile time to be true + * so the loop and end_time will be optimized out + */ +static inline bool sk_busy_loop(struct sock *sk, int nonblock) +{ + unsigned long end_time = !nonblock ? sk_busy_loop_end_time(sk) : 0; + const struct net_device_ops *ops; + struct napi_struct *napi; + int rc = false; + + /* + * rcu read lock for napi hash + * bh so we don't race with net_rx_action + */ + rcu_read_lock_bh(); + + napi = napi_by_id(sk->sk_napi_id); + if (!napi) + goto out; + + ops = napi->dev->netdev_ops; + if (!ops->ndo_ll_poll) + goto out; + + do { + rc = ops->ndo_ll_poll(napi); + + if (rc == LL_FLUSH_FAILED) + break; /* permanent failure */ + + if (rc > 0) + /* local bh are disabled so it is ok to use _BH */ + NET_ADD_STATS_BH(sock_net(sk), + LINUX_MIB_LOWLATENCYRXPACKETS, rc); + + } while (!nonblock && skb_queue_empty(&sk->sk_receive_queue) && + !need_resched() && !busy_loop_timeout(end_time)); + + rc = !skb_queue_empty(&sk->sk_receive_queue); +out: + rcu_read_unlock_bh(); + return rc; +} + +/* used in the NIC receive handler to mark the skb */ +static inline void skb_mark_ll(struct sk_buff *skb, struct napi_struct *napi) +{ + skb->napi_id = napi->napi_id; +} + +/* used in the protocol hanlder to propagate the napi_id to the socket */ +static inline void sk_mark_ll(struct sock *sk, struct sk_buff *skb) +{ + sk->sk_napi_id = skb->napi_id; +} + +#else /* CONFIG_NET_LL_RX_POLL */ +static inline unsigned long net_busy_loop_on(void) +{ + return 0; +} + +static inline unsigned long busy_loop_end_time(void) +{ + return 0; +} + +static inline bool sk_can_busy_loop(struct sock *sk) +{ + return false; +} + +static inline bool sk_busy_poll(struct sock *sk, int nonblock) +{ + return false; +} + +static inline void skb_mark_ll(struct sk_buff *skb, struct napi_struct *napi) +{ +} + +static inline void sk_mark_ll(struct sock *sk, struct sk_buff *skb) +{ +} + +static inline bool busy_loop_timeout(unsigned long end_time) +{ + return true; +} + +#endif /* CONFIG_NET_LL_RX_POLL */ +#endif /* _LINUX_NET_LL_POLL_H */ diff --git a/include/net/ll_poll.h b/include/net/ll_poll.h deleted file mode 100644 index 76f034087743..000000000000 --- a/include/net/ll_poll.h +++ /dev/null @@ -1,183 +0,0 @@ -/* - * Low Latency Sockets - * Copyright(c) 2013 Intel Corporation. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms and conditions of the GNU General Public License, - * version 2, as published by the Free Software Foundation. - * - * This program is distributed in the hope it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. - * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. - * - * Author: Eliezer Tamir - * - * Contact Information: - * e1000-devel Mailing List - */ - -#ifndef _LINUX_NET_LL_POLL_H -#define _LINUX_NET_LL_POLL_H - -#include -#include - -#ifdef CONFIG_NET_LL_RX_POLL - -struct napi_struct; -extern unsigned int sysctl_net_ll_read __read_mostly; -extern unsigned int sysctl_net_ll_poll __read_mostly; - -/* return values from ndo_ll_poll */ -#define LL_FLUSH_FAILED -1 -#define LL_FLUSH_BUSY -2 - -static inline bool net_busy_loop_on(void) -{ - return sysctl_net_ll_poll; -} - -/* a wrapper to make debug_smp_processor_id() happy - * we can use sched_clock() because we don't care much about precision - * we only care that the average is bounded - */ -#ifdef CONFIG_DEBUG_PREEMPT -static inline u64 busy_loop_us_clock(void) -{ - u64 rc; - - preempt_disable_notrace(); - rc = sched_clock(); - preempt_enable_no_resched_notrace(); - - return rc >> 10; -} -#else /* CONFIG_DEBUG_PREEMPT */ -static inline u64 busy_loop_us_clock(void) -{ - return sched_clock() >> 10; -} -#endif /* CONFIG_DEBUG_PREEMPT */ - -static inline unsigned long sk_busy_loop_end_time(struct sock *sk) -{ - return busy_loop_us_clock() + ACCESS_ONCE(sk->sk_ll_usec); -} - -/* in poll/select we use the global sysctl_net_ll_poll value */ -static inline unsigned long busy_loop_end_time(void) -{ - return busy_loop_us_clock() + ACCESS_ONCE(sysctl_net_ll_poll); -} - -static inline bool sk_can_busy_loop(struct sock *sk) -{ - return sk->sk_ll_usec && sk->sk_napi_id && - !need_resched() && !signal_pending(current); -} - - -static inline bool busy_loop_timeout(unsigned long end_time) -{ - unsigned long now = busy_loop_us_clock(); - - return time_after(now, end_time); -} - -/* when used in sock_poll() nonblock is known at compile time to be true - * so the loop and end_time will be optimized out - */ -static inline bool sk_busy_loop(struct sock *sk, int nonblock) -{ - unsigned long end_time = !nonblock ? sk_busy_loop_end_time(sk) : 0; - const struct net_device_ops *ops; - struct napi_struct *napi; - int rc = false; - - /* - * rcu read lock for napi hash - * bh so we don't race with net_rx_action - */ - rcu_read_lock_bh(); - - napi = napi_by_id(sk->sk_napi_id); - if (!napi) - goto out; - - ops = napi->dev->netdev_ops; - if (!ops->ndo_ll_poll) - goto out; - - do { - rc = ops->ndo_ll_poll(napi); - - if (rc == LL_FLUSH_FAILED) - break; /* permanent failure */ - - if (rc > 0) - /* local bh are disabled so it is ok to use _BH */ - NET_ADD_STATS_BH(sock_net(sk), - LINUX_MIB_LOWLATENCYRXPACKETS, rc); - - } while (!nonblock && skb_queue_empty(&sk->sk_receive_queue) && - !need_resched() && !busy_loop_timeout(end_time)); - - rc = !skb_queue_empty(&sk->sk_receive_queue); -out: - rcu_read_unlock_bh(); - return rc; -} - -/* used in the NIC receive handler to mark the skb */ -static inline void skb_mark_ll(struct sk_buff *skb, struct napi_struct *napi) -{ - skb->napi_id = napi->napi_id; -} - -/* used in the protocol hanlder to propagate the napi_id to the socket */ -static inline void sk_mark_ll(struct sock *sk, struct sk_buff *skb) -{ - sk->sk_napi_id = skb->napi_id; -} - -#else /* CONFIG_NET_LL_RX_POLL */ -static inline unsigned long net_busy_loop_on(void) -{ - return 0; -} - -static inline unsigned long busy_loop_end_time(void) -{ - return 0; -} - -static inline bool sk_can_busy_loop(struct sock *sk) -{ - return false; -} - -static inline bool sk_busy_poll(struct sock *sk, int nonblock) -{ - return false; -} - -static inline void skb_mark_ll(struct sk_buff *skb, struct napi_struct *napi) -{ -} - -static inline void sk_mark_ll(struct sock *sk, struct sk_buff *skb) -{ -} - -static inline bool busy_loop_timeout(unsigned long end_time) -{ - return true; -} - -#endif /* CONFIG_NET_LL_RX_POLL */ -#endif /* _LINUX_NET_LL_POLL_H */ -- cgit v1.2.1 From 8b80cda536ea9bceec0364e897868a30ee13b992 Mon Sep 17 00:00:00 2001 From: Eliezer Tamir Date: Wed, 10 Jul 2013 17:13:26 +0300 Subject: net: rename ll methods to busy-poll Rename ndo_ll_poll to ndo_busy_poll. Rename sk_mark_ll to sk_mark_napi_id. Rename skb_mark_ll to skb_mark_napi_id. Correct all useres of these functions. Update comments and defines in include/net/busy_poll.h Signed-off-by: Eliezer Tamir Signed-off-by: David S. Miller --- include/linux/netdevice.h | 2 +- include/net/busy_poll.h | 22 ++++++++++++---------- 2 files changed, 13 insertions(+), 11 deletions(-) (limited to 'include') diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index bb82871b8494..0741a1e919a5 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -974,7 +974,7 @@ struct net_device_ops { void (*ndo_netpoll_cleanup)(struct net_device *dev); #endif #ifdef CONFIG_NET_LL_RX_POLL - int (*ndo_ll_poll)(struct napi_struct *dev); + int (*ndo_busy_poll)(struct napi_struct *dev); #endif int (*ndo_set_vf_mac)(struct net_device *dev, int queue, u8 *mac); diff --git a/include/net/busy_poll.h b/include/net/busy_poll.h index 76f034087743..4ff71908fd42 100644 --- a/include/net/busy_poll.h +++ b/include/net/busy_poll.h @@ -1,5 +1,5 @@ /* - * Low Latency Sockets + * net busy poll support * Copyright(c) 2013 Intel Corporation. * * This program is free software; you can redistribute it and/or modify it @@ -21,8 +21,8 @@ * e1000-devel Mailing List */ -#ifndef _LINUX_NET_LL_POLL_H -#define _LINUX_NET_LL_POLL_H +#ifndef _LINUX_NET_BUSY_POLL_H +#define _LINUX_NET_BUSY_POLL_H #include #include @@ -110,11 +110,11 @@ static inline bool sk_busy_loop(struct sock *sk, int nonblock) goto out; ops = napi->dev->netdev_ops; - if (!ops->ndo_ll_poll) + if (!ops->ndo_busy_poll) goto out; do { - rc = ops->ndo_ll_poll(napi); + rc = ops->ndo_busy_poll(napi); if (rc == LL_FLUSH_FAILED) break; /* permanent failure */ @@ -134,13 +134,14 @@ out: } /* used in the NIC receive handler to mark the skb */ -static inline void skb_mark_ll(struct sk_buff *skb, struct napi_struct *napi) +static inline void skb_mark_napi_id(struct sk_buff *skb, + struct napi_struct *napi) { skb->napi_id = napi->napi_id; } /* used in the protocol hanlder to propagate the napi_id to the socket */ -static inline void sk_mark_ll(struct sock *sk, struct sk_buff *skb) +static inline void sk_mark_napi_id(struct sock *sk, struct sk_buff *skb) { sk->sk_napi_id = skb->napi_id; } @@ -166,11 +167,12 @@ static inline bool sk_busy_poll(struct sock *sk, int nonblock) return false; } -static inline void skb_mark_ll(struct sk_buff *skb, struct napi_struct *napi) +static inline void skb_mark_napi_id(struct sk_buff *skb, + struct napi_struct *napi) { } -static inline void sk_mark_ll(struct sock *sk, struct sk_buff *skb) +static inline void sk_mark_napi_id(struct sock *sk, struct sk_buff *skb) { } @@ -180,4 +182,4 @@ static inline bool busy_loop_timeout(unsigned long end_time) } #endif /* CONFIG_NET_LL_RX_POLL */ -#endif /* _LINUX_NET_LL_POLL_H */ +#endif /* _LINUX_NET_BUSY_POLL_H */ -- cgit v1.2.1 From 64b0dc517ea1b35d02565a779e6cb77ae9045685 Mon Sep 17 00:00:00 2001 From: Eliezer Tamir Date: Wed, 10 Jul 2013 17:13:36 +0300 Subject: net: rename busy poll socket op and globals Rename LL_SO to BUSY_POLL_SO Rename sysctl_net_ll_{read,poll} to sysctl_busy_{read,poll} Fix up users of these variables. Fix documentation for sysctl. a patch for the socket.7 man page will follow separately, because of limitations of my mail setup. Signed-off-by: Eliezer Tamir Signed-off-by: David S. Miller --- include/net/busy_poll.h | 8 ++++---- include/uapi/asm-generic/socket.h | 2 +- 2 files changed, 5 insertions(+), 5 deletions(-) (limited to 'include') diff --git a/include/net/busy_poll.h b/include/net/busy_poll.h index 4ff71908fd42..a14339c2985f 100644 --- a/include/net/busy_poll.h +++ b/include/net/busy_poll.h @@ -30,8 +30,8 @@ #ifdef CONFIG_NET_LL_RX_POLL struct napi_struct; -extern unsigned int sysctl_net_ll_read __read_mostly; -extern unsigned int sysctl_net_ll_poll __read_mostly; +extern unsigned int sysctl_net_busy_read __read_mostly; +extern unsigned int sysctl_net_busy_poll __read_mostly; /* return values from ndo_ll_poll */ #define LL_FLUSH_FAILED -1 @@ -39,7 +39,7 @@ extern unsigned int sysctl_net_ll_poll __read_mostly; static inline bool net_busy_loop_on(void) { - return sysctl_net_ll_poll; + return sysctl_net_busy_poll; } /* a wrapper to make debug_smp_processor_id() happy @@ -72,7 +72,7 @@ static inline unsigned long sk_busy_loop_end_time(struct sock *sk) /* in poll/select we use the global sysctl_net_ll_poll value */ static inline unsigned long busy_loop_end_time(void) { - return busy_loop_us_clock() + ACCESS_ONCE(sysctl_net_ll_poll); + return busy_loop_us_clock() + ACCESS_ONCE(sysctl_net_busy_poll); } static inline bool sk_can_busy_loop(struct sock *sk) diff --git a/include/uapi/asm-generic/socket.h b/include/uapi/asm-generic/socket.h index ca3a20d772ac..f04b69b6abf2 100644 --- a/include/uapi/asm-generic/socket.h +++ b/include/uapi/asm-generic/socket.h @@ -76,6 +76,6 @@ #define SO_SELECT_ERR_QUEUE 45 -#define SO_LL 46 +#define SO_BUSY_POLL 46 #endif /* __ASM_GENERIC_SOCKET_H */ -- cgit v1.2.1 From 288dde9f23b6726c1e8147bf635721372bf77b16 Mon Sep 17 00:00:00 2001 From: Moshe Lazer Date: Wed, 10 Jul 2013 14:31:03 +0300 Subject: mlx5_core: Adjust hca_cap.uar_page_sz to conform to Connect-IB spec Sparse reported an endianness bug in the assignment to hca_cap.uar_page_sz. Fix the declaration of this field to be __be16 (which is what is in the firmware spec), renaming the field to log_uar_pg_size to conform to the spec, which fixes the endianness bug reported by sparse. Reported-by: Fengguang Wu Signed-off-by: Moshe Lazer Signed-off-by: Or Gerlitz Signed-off-by: Roland Dreier --- include/linux/mlx5/device.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/include/linux/mlx5/device.h b/include/linux/mlx5/device.h index 51390915e538..8de8d8f22384 100644 --- a/include/linux/mlx5/device.h +++ b/include/linux/mlx5/device.h @@ -317,8 +317,8 @@ struct mlx5_hca_cap { u8 log_max_pd; u8 rsvd25; u8 log_max_xrcd; - u8 rsvd26[40]; - __be32 uar_page_sz; + u8 rsvd26[42]; + __be16 log_uar_page_sz; u8 rsvd27[28]; u8 log_msx_atomic_size_qp; u8 rsvd28[2]; -- cgit v1.2.1 From 1b375dc30710180c4b88cc59caba6e3481ec5c8b Mon Sep 17 00:00:00 2001 From: Maarten Lankhorst Date: Fri, 5 Jul 2013 09:29:32 +0200 Subject: mutex: Move ww_mutex definitions to ww_mutex.h Move the definitions for wound/wait mutexes out to a separate header, ww_mutex.h. This reduces clutter in mutex.h, and increases readability. Suggested-by: Linus Torvalds Signed-off-by: Maarten Lankhorst Acked-by: Peter Zijlstra Acked-by: Rik van Riel Acked-by: Maarten Lankhorst Cc: Dave Airlie Link: http://lkml.kernel.org/r/51D675DC.3000907@canonical.com [ Tidied up the code a bit. ] Signed-off-by: Ingo Molnar --- include/linux/mutex.h | 358 ----------------------------------------- include/linux/reservation.h | 2 +- include/linux/ww_mutex.h | 378 ++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 379 insertions(+), 359 deletions(-) create mode 100644 include/linux/ww_mutex.h (limited to 'include') diff --git a/include/linux/mutex.h b/include/linux/mutex.h index 3793ed7feeeb..ccd4260834c5 100644 --- a/include/linux/mutex.h +++ b/include/linux/mutex.h @@ -78,40 +78,6 @@ struct mutex_waiter { #endif }; -struct ww_class { - atomic_long_t stamp; - struct lock_class_key acquire_key; - struct lock_class_key mutex_key; - const char *acquire_name; - const char *mutex_name; -}; - -struct ww_acquire_ctx { - struct task_struct *task; - unsigned long stamp; - unsigned acquired; -#ifdef CONFIG_DEBUG_MUTEXES - unsigned done_acquire; - struct ww_class *ww_class; - struct ww_mutex *contending_lock; -#endif -#ifdef CONFIG_DEBUG_LOCK_ALLOC - struct lockdep_map dep_map; -#endif -#ifdef CONFIG_DEBUG_WW_MUTEX_SLOWPATH - unsigned deadlock_inject_interval; - unsigned deadlock_inject_countdown; -#endif -}; - -struct ww_mutex { - struct mutex base; - struct ww_acquire_ctx *ctx; -#ifdef CONFIG_DEBUG_MUTEXES - struct ww_class *ww_class; -#endif -}; - #ifdef CONFIG_DEBUG_MUTEXES # include #else @@ -136,11 +102,8 @@ static inline void mutex_destroy(struct mutex *lock) {} #ifdef CONFIG_DEBUG_LOCK_ALLOC # define __DEP_MAP_MUTEX_INITIALIZER(lockname) \ , .dep_map = { .name = #lockname } -# define __WW_CLASS_MUTEX_INITIALIZER(lockname, ww_class) \ - , .ww_class = &ww_class #else # define __DEP_MAP_MUTEX_INITIALIZER(lockname) -# define __WW_CLASS_MUTEX_INITIALIZER(lockname, ww_class) #endif #define __MUTEX_INITIALIZER(lockname) \ @@ -150,48 +113,12 @@ static inline void mutex_destroy(struct mutex *lock) {} __DEBUG_MUTEX_INITIALIZER(lockname) \ __DEP_MAP_MUTEX_INITIALIZER(lockname) } -#define __WW_CLASS_INITIALIZER(ww_class) \ - { .stamp = ATOMIC_LONG_INIT(0) \ - , .acquire_name = #ww_class "_acquire" \ - , .mutex_name = #ww_class "_mutex" } - -#define __WW_MUTEX_INITIALIZER(lockname, class) \ - { .base = { \__MUTEX_INITIALIZER(lockname) } \ - __WW_CLASS_MUTEX_INITIALIZER(lockname, class) } - #define DEFINE_MUTEX(mutexname) \ struct mutex mutexname = __MUTEX_INITIALIZER(mutexname) -#define DEFINE_WW_CLASS(classname) \ - struct ww_class classname = __WW_CLASS_INITIALIZER(classname) - -#define DEFINE_WW_MUTEX(mutexname, ww_class) \ - struct ww_mutex mutexname = __WW_MUTEX_INITIALIZER(mutexname, ww_class) - - extern void __mutex_init(struct mutex *lock, const char *name, struct lock_class_key *key); -/** - * ww_mutex_init - initialize the w/w mutex - * @lock: the mutex to be initialized - * @ww_class: the w/w class the mutex should belong to - * - * Initialize the w/w mutex to unlocked state and associate it with the given - * class. - * - * It is not allowed to initialize an already locked mutex. - */ -static inline void ww_mutex_init(struct ww_mutex *lock, - struct ww_class *ww_class) -{ - __mutex_init(&lock->base, ww_class->mutex_name, &ww_class->mutex_key); - lock->ctx = NULL; -#ifdef CONFIG_DEBUG_MUTEXES - lock->ww_class = ww_class; -#endif -} - /** * mutex_is_locked - is the mutex locked * @lock: the mutex to be queried @@ -246,291 +173,6 @@ extern int __must_check mutex_lock_killable(struct mutex *lock); extern int mutex_trylock(struct mutex *lock); extern void mutex_unlock(struct mutex *lock); -/** - * ww_acquire_init - initialize a w/w acquire context - * @ctx: w/w acquire context to initialize - * @ww_class: w/w class of the context - * - * Initializes an context to acquire multiple mutexes of the given w/w class. - * - * Context-based w/w mutex acquiring can be done in any order whatsoever within - * a given lock class. Deadlocks will be detected and handled with the - * wait/wound logic. - * - * Mixing of context-based w/w mutex acquiring and single w/w mutex locking can - * result in undetected deadlocks and is so forbidden. Mixing different contexts - * for the same w/w class when acquiring mutexes can also result in undetected - * deadlocks, and is hence also forbidden. Both types of abuse will be caught by - * enabling CONFIG_PROVE_LOCKING. - * - * Nesting of acquire contexts for _different_ w/w classes is possible, subject - * to the usual locking rules between different lock classes. - * - * An acquire context must be released with ww_acquire_fini by the same task - * before the memory is freed. It is recommended to allocate the context itself - * on the stack. - */ -static inline void ww_acquire_init(struct ww_acquire_ctx *ctx, - struct ww_class *ww_class) -{ - ctx->task = current; - ctx->stamp = atomic_long_inc_return(&ww_class->stamp); - ctx->acquired = 0; -#ifdef CONFIG_DEBUG_MUTEXES - ctx->ww_class = ww_class; - ctx->done_acquire = 0; - ctx->contending_lock = NULL; -#endif -#ifdef CONFIG_DEBUG_LOCK_ALLOC - debug_check_no_locks_freed((void *)ctx, sizeof(*ctx)); - lockdep_init_map(&ctx->dep_map, ww_class->acquire_name, - &ww_class->acquire_key, 0); - mutex_acquire(&ctx->dep_map, 0, 0, _RET_IP_); -#endif -#ifdef CONFIG_DEBUG_WW_MUTEX_SLOWPATH - ctx->deadlock_inject_interval = 1; - ctx->deadlock_inject_countdown = ctx->stamp & 0xf; -#endif -} - -/** - * ww_acquire_done - marks the end of the acquire phase - * @ctx: the acquire context - * - * Marks the end of the acquire phase, any further w/w mutex lock calls using - * this context are forbidden. - * - * Calling this function is optional, it is just useful to document w/w mutex - * code and clearly designated the acquire phase from actually using the locked - * data structures. - */ -static inline void ww_acquire_done(struct ww_acquire_ctx *ctx) -{ -#ifdef CONFIG_DEBUG_MUTEXES - lockdep_assert_held(ctx); - - DEBUG_LOCKS_WARN_ON(ctx->done_acquire); - ctx->done_acquire = 1; -#endif -} - -/** - * ww_acquire_fini - releases a w/w acquire context - * @ctx: the acquire context to free - * - * Releases a w/w acquire context. This must be called _after_ all acquired w/w - * mutexes have been released with ww_mutex_unlock. - */ -static inline void ww_acquire_fini(struct ww_acquire_ctx *ctx) -{ -#ifdef CONFIG_DEBUG_MUTEXES - mutex_release(&ctx->dep_map, 0, _THIS_IP_); - - DEBUG_LOCKS_WARN_ON(ctx->acquired); - if (!config_enabled(CONFIG_PROVE_LOCKING)) - /* - * lockdep will normally handle this, - * but fail without anyway - */ - ctx->done_acquire = 1; - - if (!config_enabled(CONFIG_DEBUG_LOCK_ALLOC)) - /* ensure ww_acquire_fini will still fail if called twice */ - ctx->acquired = ~0U; -#endif -} - -extern int __must_check __ww_mutex_lock(struct ww_mutex *lock, - struct ww_acquire_ctx *ctx); -extern int __must_check __ww_mutex_lock_interruptible(struct ww_mutex *lock, - struct ww_acquire_ctx *ctx); - -/** - * ww_mutex_lock - acquire the w/w mutex - * @lock: the mutex to be acquired - * @ctx: w/w acquire context, or NULL to acquire only a single lock. - * - * Lock the w/w mutex exclusively for this task. - * - * Deadlocks within a given w/w class of locks are detected and handled with the - * wait/wound algorithm. If the lock isn't immediately avaiable this function - * will either sleep until it is (wait case). Or it selects the current context - * for backing off by returning -EDEADLK (wound case). Trying to acquire the - * same lock with the same context twice is also detected and signalled by - * returning -EALREADY. Returns 0 if the mutex was successfully acquired. - * - * In the wound case the caller must release all currently held w/w mutexes for - * the given context and then wait for this contending lock to be available by - * calling ww_mutex_lock_slow. Alternatively callers can opt to not acquire this - * lock and proceed with trying to acquire further w/w mutexes (e.g. when - * scanning through lru lists trying to free resources). - * - * The mutex must later on be released by the same task that - * acquired it. The task may not exit without first unlocking the mutex. Also, - * kernel memory where the mutex resides must not be freed with the mutex still - * locked. The mutex must first be initialized (or statically defined) before it - * can be locked. memset()-ing the mutex to 0 is not allowed. The mutex must be - * of the same w/w lock class as was used to initialize the acquire context. - * - * A mutex acquired with this function must be released with ww_mutex_unlock. - */ -static inline int ww_mutex_lock(struct ww_mutex *lock, struct ww_acquire_ctx *ctx) -{ - if (ctx) - return __ww_mutex_lock(lock, ctx); - else { - mutex_lock(&lock->base); - return 0; - } -} - -/** - * ww_mutex_lock_interruptible - acquire the w/w mutex, interruptible - * @lock: the mutex to be acquired - * @ctx: w/w acquire context - * - * Lock the w/w mutex exclusively for this task. - * - * Deadlocks within a given w/w class of locks are detected and handled with the - * wait/wound algorithm. If the lock isn't immediately avaiable this function - * will either sleep until it is (wait case). Or it selects the current context - * for backing off by returning -EDEADLK (wound case). Trying to acquire the - * same lock with the same context twice is also detected and signalled by - * returning -EALREADY. Returns 0 if the mutex was successfully acquired. If a - * signal arrives while waiting for the lock then this function returns -EINTR. - * - * In the wound case the caller must release all currently held w/w mutexes for - * the given context and then wait for this contending lock to be available by - * calling ww_mutex_lock_slow_interruptible. Alternatively callers can opt to - * not acquire this lock and proceed with trying to acquire further w/w mutexes - * (e.g. when scanning through lru lists trying to free resources). - * - * The mutex must later on be released by the same task that - * acquired it. The task may not exit without first unlocking the mutex. Also, - * kernel memory where the mutex resides must not be freed with the mutex still - * locked. The mutex must first be initialized (or statically defined) before it - * can be locked. memset()-ing the mutex to 0 is not allowed. The mutex must be - * of the same w/w lock class as was used to initialize the acquire context. - * - * A mutex acquired with this function must be released with ww_mutex_unlock. - */ -static inline int __must_check ww_mutex_lock_interruptible(struct ww_mutex *lock, - struct ww_acquire_ctx *ctx) -{ - if (ctx) - return __ww_mutex_lock_interruptible(lock, ctx); - else - return mutex_lock_interruptible(&lock->base); -} - -/** - * ww_mutex_lock_slow - slowpath acquiring of the w/w mutex - * @lock: the mutex to be acquired - * @ctx: w/w acquire context - * - * Acquires a w/w mutex with the given context after a wound case. This function - * will sleep until the lock becomes available. - * - * The caller must have released all w/w mutexes already acquired with the - * context and then call this function on the contended lock. - * - * Afterwards the caller may continue to (re)acquire the other w/w mutexes it - * needs with ww_mutex_lock. Note that the -EALREADY return code from - * ww_mutex_lock can be used to avoid locking this contended mutex twice. - * - * It is forbidden to call this function with any other w/w mutexes associated - * with the context held. It is forbidden to call this on anything else than the - * contending mutex. - * - * Note that the slowpath lock acquiring can also be done by calling - * ww_mutex_lock directly. This function here is simply to help w/w mutex - * locking code readability by clearly denoting the slowpath. - */ -static inline void -ww_mutex_lock_slow(struct ww_mutex *lock, struct ww_acquire_ctx *ctx) -{ - int ret; -#ifdef CONFIG_DEBUG_MUTEXES - DEBUG_LOCKS_WARN_ON(!ctx->contending_lock); -#endif - ret = ww_mutex_lock(lock, ctx); - (void)ret; -} - -/** - * ww_mutex_lock_slow_interruptible - slowpath acquiring of the w/w mutex, - * interruptible - * @lock: the mutex to be acquired - * @ctx: w/w acquire context - * - * Acquires a w/w mutex with the given context after a wound case. This function - * will sleep until the lock becomes available and returns 0 when the lock has - * been acquired. If a signal arrives while waiting for the lock then this - * function returns -EINTR. - * - * The caller must have released all w/w mutexes already acquired with the - * context and then call this function on the contended lock. - * - * Afterwards the caller may continue to (re)acquire the other w/w mutexes it - * needs with ww_mutex_lock. Note that the -EALREADY return code from - * ww_mutex_lock can be used to avoid locking this contended mutex twice. - * - * It is forbidden to call this function with any other w/w mutexes associated - * with the given context held. It is forbidden to call this on anything else - * than the contending mutex. - * - * Note that the slowpath lock acquiring can also be done by calling - * ww_mutex_lock_interruptible directly. This function here is simply to help - * w/w mutex locking code readability by clearly denoting the slowpath. - */ -static inline int __must_check -ww_mutex_lock_slow_interruptible(struct ww_mutex *lock, - struct ww_acquire_ctx *ctx) -{ -#ifdef CONFIG_DEBUG_MUTEXES - DEBUG_LOCKS_WARN_ON(!ctx->contending_lock); -#endif - return ww_mutex_lock_interruptible(lock, ctx); -} - -extern void ww_mutex_unlock(struct ww_mutex *lock); - -/** - * ww_mutex_trylock - tries to acquire the w/w mutex without acquire context - * @lock: mutex to lock - * - * Trylocks a mutex without acquire context, so no deadlock detection is - * possible. Returns 1 if the mutex has been acquired successfully, 0 otherwise. - */ -static inline int __must_check ww_mutex_trylock(struct ww_mutex *lock) -{ - return mutex_trylock(&lock->base); -} - -/*** - * ww_mutex_destroy - mark a w/w mutex unusable - * @lock: the mutex to be destroyed - * - * This function marks the mutex uninitialized, and any subsequent - * use of the mutex is forbidden. The mutex must not be locked when - * this function is called. - */ -static inline void ww_mutex_destroy(struct ww_mutex *lock) -{ - mutex_destroy(&lock->base); -} - -/** - * ww_mutex_is_locked - is the w/w mutex locked - * @lock: the mutex to be queried - * - * Returns 1 if the mutex is locked, 0 if unlocked. - */ -static inline bool ww_mutex_is_locked(struct ww_mutex *lock) -{ - return mutex_is_locked(&lock->base); -} - extern int atomic_dec_and_mutex_lock(atomic_t *cnt, struct mutex *lock); #ifndef CONFIG_HAVE_ARCH_MUTEX_CPU_RELAX diff --git a/include/linux/reservation.h b/include/linux/reservation.h index e9ee806a9d72..813dae960ebd 100644 --- a/include/linux/reservation.h +++ b/include/linux/reservation.h @@ -39,7 +39,7 @@ #ifndef _LINUX_RESERVATION_H #define _LINUX_RESERVATION_H -#include +#include extern struct ww_class reservation_ww_class; diff --git a/include/linux/ww_mutex.h b/include/linux/ww_mutex.h new file mode 100644 index 000000000000..760399a470bd --- /dev/null +++ b/include/linux/ww_mutex.h @@ -0,0 +1,378 @@ +/* + * Wound/Wait Mutexes: blocking mutual exclusion locks with deadlock avoidance + * + * Original mutex implementation started by Ingo Molnar: + * + * Copyright (C) 2004, 2005, 2006 Red Hat, Inc., Ingo Molnar + * + * Wound/wait implementation: + * Copyright (C) 2013 Canonical Ltd. + * + * This file contains the main data structure and API definitions. + */ + +#ifndef __LINUX_WW_MUTEX_H +#define __LINUX_WW_MUTEX_H + +#include + +struct ww_class { + atomic_long_t stamp; + struct lock_class_key acquire_key; + struct lock_class_key mutex_key; + const char *acquire_name; + const char *mutex_name; +}; + +struct ww_acquire_ctx { + struct task_struct *task; + unsigned long stamp; + unsigned acquired; +#ifdef CONFIG_DEBUG_MUTEXES + unsigned done_acquire; + struct ww_class *ww_class; + struct ww_mutex *contending_lock; +#endif +#ifdef CONFIG_DEBUG_LOCK_ALLOC + struct lockdep_map dep_map; +#endif +#ifdef CONFIG_DEBUG_WW_MUTEX_SLOWPATH + unsigned deadlock_inject_interval; + unsigned deadlock_inject_countdown; +#endif +}; + +struct ww_mutex { + struct mutex base; + struct ww_acquire_ctx *ctx; +#ifdef CONFIG_DEBUG_MUTEXES + struct ww_class *ww_class; +#endif +}; + +#ifdef CONFIG_DEBUG_LOCK_ALLOC +# define __WW_CLASS_MUTEX_INITIALIZER(lockname, ww_class) \ + , .ww_class = &ww_class +#else +# define __WW_CLASS_MUTEX_INITIALIZER(lockname, ww_class) +#endif + +#define __WW_CLASS_INITIALIZER(ww_class) \ + { .stamp = ATOMIC_LONG_INIT(0) \ + , .acquire_name = #ww_class "_acquire" \ + , .mutex_name = #ww_class "_mutex" } + +#define __WW_MUTEX_INITIALIZER(lockname, class) \ + { .base = { \__MUTEX_INITIALIZER(lockname) } \ + __WW_CLASS_MUTEX_INITIALIZER(lockname, class) } + +#define DEFINE_WW_CLASS(classname) \ + struct ww_class classname = __WW_CLASS_INITIALIZER(classname) + +#define DEFINE_WW_MUTEX(mutexname, ww_class) \ + struct ww_mutex mutexname = __WW_MUTEX_INITIALIZER(mutexname, ww_class) + +/** + * ww_mutex_init - initialize the w/w mutex + * @lock: the mutex to be initialized + * @ww_class: the w/w class the mutex should belong to + * + * Initialize the w/w mutex to unlocked state and associate it with the given + * class. + * + * It is not allowed to initialize an already locked mutex. + */ +static inline void ww_mutex_init(struct ww_mutex *lock, + struct ww_class *ww_class) +{ + __mutex_init(&lock->base, ww_class->mutex_name, &ww_class->mutex_key); + lock->ctx = NULL; +#ifdef CONFIG_DEBUG_MUTEXES + lock->ww_class = ww_class; +#endif +} + +/** + * ww_acquire_init - initialize a w/w acquire context + * @ctx: w/w acquire context to initialize + * @ww_class: w/w class of the context + * + * Initializes an context to acquire multiple mutexes of the given w/w class. + * + * Context-based w/w mutex acquiring can be done in any order whatsoever within + * a given lock class. Deadlocks will be detected and handled with the + * wait/wound logic. + * + * Mixing of context-based w/w mutex acquiring and single w/w mutex locking can + * result in undetected deadlocks and is so forbidden. Mixing different contexts + * for the same w/w class when acquiring mutexes can also result in undetected + * deadlocks, and is hence also forbidden. Both types of abuse will be caught by + * enabling CONFIG_PROVE_LOCKING. + * + * Nesting of acquire contexts for _different_ w/w classes is possible, subject + * to the usual locking rules between different lock classes. + * + * An acquire context must be released with ww_acquire_fini by the same task + * before the memory is freed. It is recommended to allocate the context itself + * on the stack. + */ +static inline void ww_acquire_init(struct ww_acquire_ctx *ctx, + struct ww_class *ww_class) +{ + ctx->task = current; + ctx->stamp = atomic_long_inc_return(&ww_class->stamp); + ctx->acquired = 0; +#ifdef CONFIG_DEBUG_MUTEXES + ctx->ww_class = ww_class; + ctx->done_acquire = 0; + ctx->contending_lock = NULL; +#endif +#ifdef CONFIG_DEBUG_LOCK_ALLOC + debug_check_no_locks_freed((void *)ctx, sizeof(*ctx)); + lockdep_init_map(&ctx->dep_map, ww_class->acquire_name, + &ww_class->acquire_key, 0); + mutex_acquire(&ctx->dep_map, 0, 0, _RET_IP_); +#endif +#ifdef CONFIG_DEBUG_WW_MUTEX_SLOWPATH + ctx->deadlock_inject_interval = 1; + ctx->deadlock_inject_countdown = ctx->stamp & 0xf; +#endif +} + +/** + * ww_acquire_done - marks the end of the acquire phase + * @ctx: the acquire context + * + * Marks the end of the acquire phase, any further w/w mutex lock calls using + * this context are forbidden. + * + * Calling this function is optional, it is just useful to document w/w mutex + * code and clearly designated the acquire phase from actually using the locked + * data structures. + */ +static inline void ww_acquire_done(struct ww_acquire_ctx *ctx) +{ +#ifdef CONFIG_DEBUG_MUTEXES + lockdep_assert_held(ctx); + + DEBUG_LOCKS_WARN_ON(ctx->done_acquire); + ctx->done_acquire = 1; +#endif +} + +/** + * ww_acquire_fini - releases a w/w acquire context + * @ctx: the acquire context to free + * + * Releases a w/w acquire context. This must be called _after_ all acquired w/w + * mutexes have been released with ww_mutex_unlock. + */ +static inline void ww_acquire_fini(struct ww_acquire_ctx *ctx) +{ +#ifdef CONFIG_DEBUG_MUTEXES + mutex_release(&ctx->dep_map, 0, _THIS_IP_); + + DEBUG_LOCKS_WARN_ON(ctx->acquired); + if (!config_enabled(CONFIG_PROVE_LOCKING)) + /* + * lockdep will normally handle this, + * but fail without anyway + */ + ctx->done_acquire = 1; + + if (!config_enabled(CONFIG_DEBUG_LOCK_ALLOC)) + /* ensure ww_acquire_fini will still fail if called twice */ + ctx->acquired = ~0U; +#endif +} + +extern int __must_check __ww_mutex_lock(struct ww_mutex *lock, + struct ww_acquire_ctx *ctx); +extern int __must_check __ww_mutex_lock_interruptible(struct ww_mutex *lock, + struct ww_acquire_ctx *ctx); + +/** + * ww_mutex_lock - acquire the w/w mutex + * @lock: the mutex to be acquired + * @ctx: w/w acquire context, or NULL to acquire only a single lock. + * + * Lock the w/w mutex exclusively for this task. + * + * Deadlocks within a given w/w class of locks are detected and handled with the + * wait/wound algorithm. If the lock isn't immediately avaiable this function + * will either sleep until it is (wait case). Or it selects the current context + * for backing off by returning -EDEADLK (wound case). Trying to acquire the + * same lock with the same context twice is also detected and signalled by + * returning -EALREADY. Returns 0 if the mutex was successfully acquired. + * + * In the wound case the caller must release all currently held w/w mutexes for + * the given context and then wait for this contending lock to be available by + * calling ww_mutex_lock_slow. Alternatively callers can opt to not acquire this + * lock and proceed with trying to acquire further w/w mutexes (e.g. when + * scanning through lru lists trying to free resources). + * + * The mutex must later on be released by the same task that + * acquired it. The task may not exit without first unlocking the mutex. Also, + * kernel memory where the mutex resides must not be freed with the mutex still + * locked. The mutex must first be initialized (or statically defined) before it + * can be locked. memset()-ing the mutex to 0 is not allowed. The mutex must be + * of the same w/w lock class as was used to initialize the acquire context. + * + * A mutex acquired with this function must be released with ww_mutex_unlock. + */ +static inline int ww_mutex_lock(struct ww_mutex *lock, struct ww_acquire_ctx *ctx) +{ + if (ctx) + return __ww_mutex_lock(lock, ctx); + + mutex_lock(&lock->base); + return 0; +} + +/** + * ww_mutex_lock_interruptible - acquire the w/w mutex, interruptible + * @lock: the mutex to be acquired + * @ctx: w/w acquire context + * + * Lock the w/w mutex exclusively for this task. + * + * Deadlocks within a given w/w class of locks are detected and handled with the + * wait/wound algorithm. If the lock isn't immediately avaiable this function + * will either sleep until it is (wait case). Or it selects the current context + * for backing off by returning -EDEADLK (wound case). Trying to acquire the + * same lock with the same context twice is also detected and signalled by + * returning -EALREADY. Returns 0 if the mutex was successfully acquired. If a + * signal arrives while waiting for the lock then this function returns -EINTR. + * + * In the wound case the caller must release all currently held w/w mutexes for + * the given context and then wait for this contending lock to be available by + * calling ww_mutex_lock_slow_interruptible. Alternatively callers can opt to + * not acquire this lock and proceed with trying to acquire further w/w mutexes + * (e.g. when scanning through lru lists trying to free resources). + * + * The mutex must later on be released by the same task that + * acquired it. The task may not exit without first unlocking the mutex. Also, + * kernel memory where the mutex resides must not be freed with the mutex still + * locked. The mutex must first be initialized (or statically defined) before it + * can be locked. memset()-ing the mutex to 0 is not allowed. The mutex must be + * of the same w/w lock class as was used to initialize the acquire context. + * + * A mutex acquired with this function must be released with ww_mutex_unlock. + */ +static inline int __must_check ww_mutex_lock_interruptible(struct ww_mutex *lock, + struct ww_acquire_ctx *ctx) +{ + if (ctx) + return __ww_mutex_lock_interruptible(lock, ctx); + else + return mutex_lock_interruptible(&lock->base); +} + +/** + * ww_mutex_lock_slow - slowpath acquiring of the w/w mutex + * @lock: the mutex to be acquired + * @ctx: w/w acquire context + * + * Acquires a w/w mutex with the given context after a wound case. This function + * will sleep until the lock becomes available. + * + * The caller must have released all w/w mutexes already acquired with the + * context and then call this function on the contended lock. + * + * Afterwards the caller may continue to (re)acquire the other w/w mutexes it + * needs with ww_mutex_lock. Note that the -EALREADY return code from + * ww_mutex_lock can be used to avoid locking this contended mutex twice. + * + * It is forbidden to call this function with any other w/w mutexes associated + * with the context held. It is forbidden to call this on anything else than the + * contending mutex. + * + * Note that the slowpath lock acquiring can also be done by calling + * ww_mutex_lock directly. This function here is simply to help w/w mutex + * locking code readability by clearly denoting the slowpath. + */ +static inline void +ww_mutex_lock_slow(struct ww_mutex *lock, struct ww_acquire_ctx *ctx) +{ + int ret; +#ifdef CONFIG_DEBUG_MUTEXES + DEBUG_LOCKS_WARN_ON(!ctx->contending_lock); +#endif + ret = ww_mutex_lock(lock, ctx); + (void)ret; +} + +/** + * ww_mutex_lock_slow_interruptible - slowpath acquiring of the w/w mutex, interruptible + * @lock: the mutex to be acquired + * @ctx: w/w acquire context + * + * Acquires a w/w mutex with the given context after a wound case. This function + * will sleep until the lock becomes available and returns 0 when the lock has + * been acquired. If a signal arrives while waiting for the lock then this + * function returns -EINTR. + * + * The caller must have released all w/w mutexes already acquired with the + * context and then call this function on the contended lock. + * + * Afterwards the caller may continue to (re)acquire the other w/w mutexes it + * needs with ww_mutex_lock. Note that the -EALREADY return code from + * ww_mutex_lock can be used to avoid locking this contended mutex twice. + * + * It is forbidden to call this function with any other w/w mutexes associated + * with the given context held. It is forbidden to call this on anything else + * than the contending mutex. + * + * Note that the slowpath lock acquiring can also be done by calling + * ww_mutex_lock_interruptible directly. This function here is simply to help + * w/w mutex locking code readability by clearly denoting the slowpath. + */ +static inline int __must_check +ww_mutex_lock_slow_interruptible(struct ww_mutex *lock, + struct ww_acquire_ctx *ctx) +{ +#ifdef CONFIG_DEBUG_MUTEXES + DEBUG_LOCKS_WARN_ON(!ctx->contending_lock); +#endif + return ww_mutex_lock_interruptible(lock, ctx); +} + +extern void ww_mutex_unlock(struct ww_mutex *lock); + +/** + * ww_mutex_trylock - tries to acquire the w/w mutex without acquire context + * @lock: mutex to lock + * + * Trylocks a mutex without acquire context, so no deadlock detection is + * possible. Returns 1 if the mutex has been acquired successfully, 0 otherwise. + */ +static inline int __must_check ww_mutex_trylock(struct ww_mutex *lock) +{ + return mutex_trylock(&lock->base); +} + +/*** + * ww_mutex_destroy - mark a w/w mutex unusable + * @lock: the mutex to be destroyed + * + * This function marks the mutex uninitialized, and any subsequent + * use of the mutex is forbidden. The mutex must not be locked when + * this function is called. + */ +static inline void ww_mutex_destroy(struct ww_mutex *lock) +{ + mutex_destroy(&lock->base); +} + +/** + * ww_mutex_is_locked - is the w/w mutex locked + * @lock: the mutex to be queried + * + * Returns 1 if the mutex is locked, 0 if unlocked. + */ +static inline bool ww_mutex_is_locked(struct ww_mutex *lock) +{ + return mutex_is_locked(&lock->base); +} + +#endif -- cgit v1.2.1 From bb458c644a59dbba3a1fe59b27106c5e68e1c4bd Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sat, 13 Jul 2013 13:26:37 +0400 Subject: Safer ABI for O_TMPFILE [suggested by Rasmus Villemoes] make O_DIRECTORY | O_RDWR part of O_TMPFILE; that will fail on old kernels in a lot more cases than what I came up with. And make sure O_CREAT doesn't get there... Signed-off-by: Al Viro --- include/uapi/asm-generic/fcntl.h | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/include/uapi/asm-generic/fcntl.h b/include/uapi/asm-generic/fcntl.h index 06632beaa6d5..05ac354e124d 100644 --- a/include/uapi/asm-generic/fcntl.h +++ b/include/uapi/asm-generic/fcntl.h @@ -84,10 +84,14 @@ #define O_PATH 010000000 #endif -#ifndef O_TMPFILE -#define O_TMPFILE 020000000 +#ifndef __O_TMPFILE +#define __O_TMPFILE 020000000 #endif +/* a horrid kludge trying to make sure that this will fail on old kernels */ +#define O_TMPFILE (__O_TMPFILE | O_DIRECTORY | O_RDWR) +#define O_TMPFILE_MASK (__O_TMPFILE | O_DIRECTORY | O_CREAT | O_ACCMODE) + #ifndef O_NDELAY #define O_NDELAY O_NONBLOCK #endif -- cgit v1.2.1 From 4f5e65a1cc90bbb15b9f6cdc362922af1bcc155a Mon Sep 17 00:00:00 2001 From: Oleg Nesterov Date: Mon, 8 Jul 2013 14:24:16 -0700 Subject: fput: turn "list_head delayed_fput_list" into llist_head fput() and delayed_fput() can use llist and avoid the locking. This is unlikely path, it is not that this change can improve the performance, but this way the code looks simpler. Signed-off-by: Oleg Nesterov Suggested-by: Andrew Morton Cc: Al Viro Cc: Andrey Vagin Cc: "Eric W. Biederman" Cc: David Howells Cc: Huang Ying Cc: Peter Zijlstra Signed-off-by: Andrew Morton Signed-off-by: Al Viro --- include/linux/fs.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include') diff --git a/include/linux/fs.h b/include/linux/fs.h index 834c9e5113d9..d40e8e78bbd1 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -10,6 +10,7 @@ #include #include #include +#include #include #include #include @@ -768,6 +769,7 @@ struct file { */ union { struct list_head fu_list; + struct llist_node fu_llist; struct rcu_head fu_rcuhead; } f_u; struct path f_path; -- cgit v1.2.1 From fb4214db50b00558cc6e274c88b3f7325068e942 Mon Sep 17 00:00:00 2001 From: Oleg Nesterov Date: Mon, 8 Jul 2013 14:24:18 -0700 Subject: llist: fix/simplify llist_add() and llist_add_batch() 1. This is mostly theoretical, but llist_add*() need ACCESS_ONCE(). Otherwise it is not guaranteed that the first cmpxchg() uses the same value for old_entry and new_last->next. 2. These helpers cache the result of cmpxchg() and read the initial value of head->first before the main loop. I do not think this makes sense. In the likely case cmpxchg() succeeds, otherwise it doesn't hurt to reload head->first. I think it would be better to simplify the code and simply read ->first before cmpxchg(). Signed-off-by: Oleg Nesterov Cc: Al Viro Cc: Andrey Vagin Cc: "Eric W. Biederman" Cc: David Howells Cc: Huang Ying Cc: Peter Zijlstra Signed-off-by: Andrew Morton Signed-off-by: Al Viro --- include/linux/llist.h | 19 +++++++------------ 1 file changed, 7 insertions(+), 12 deletions(-) (limited to 'include') diff --git a/include/linux/llist.h b/include/linux/llist.h index a5199f6d0e82..3e2b969d68f6 100644 --- a/include/linux/llist.h +++ b/include/linux/llist.h @@ -151,18 +151,13 @@ static inline struct llist_node *llist_next(struct llist_node *node) */ static inline bool llist_add(struct llist_node *new, struct llist_head *head) { - struct llist_node *entry, *old_entry; - - entry = head->first; - for (;;) { - old_entry = entry; - new->next = entry; - entry = cmpxchg(&head->first, old_entry, new); - if (entry == old_entry) - break; - } - - return old_entry == NULL; + struct llist_node *first; + + do { + new->next = first = ACCESS_ONCE(head->first); + } while (cmpxchg(&head->first, first, new) != first); + + return !first; } /** -- cgit v1.2.1 From e9a17bd73a29e5323c37ec5ffe50fc0e825d3d03 Mon Sep 17 00:00:00 2001 From: Oleg Nesterov Date: Mon, 8 Jul 2013 14:24:19 -0700 Subject: llist: llist_add() can use llist_add_batch() llist_add(new, head) can simply use llist_add_batch(new, new, head), no need to duplicate the code. This obviously uninlines llist_add() and to me this is a win. But we can make llist_add_batch() inline if this is desirable, in this case gcc can notice that new_first == new_last if the caller is llist_add(). Signed-off-by: Oleg Nesterov Cc: Al Viro Cc: Andrey Vagin Cc: "Eric W. Biederman" Cc: David Howells Cc: Huang Ying Cc: Peter Zijlstra Signed-off-by: Andrew Morton Signed-off-by: Al Viro --- include/linux/llist.h | 14 ++++---------- 1 file changed, 4 insertions(+), 10 deletions(-) (limited to 'include') diff --git a/include/linux/llist.h b/include/linux/llist.h index 3e2b969d68f6..cdaa7f023899 100644 --- a/include/linux/llist.h +++ b/include/linux/llist.h @@ -142,6 +142,9 @@ static inline struct llist_node *llist_next(struct llist_node *node) return node->next; } +extern bool llist_add_batch(struct llist_node *new_first, + struct llist_node *new_last, + struct llist_head *head); /** * llist_add - add a new entry * @new: new entry to be added @@ -151,13 +154,7 @@ static inline struct llist_node *llist_next(struct llist_node *node) */ static inline bool llist_add(struct llist_node *new, struct llist_head *head) { - struct llist_node *first; - - do { - new->next = first = ACCESS_ONCE(head->first); - } while (cmpxchg(&head->first, first, new) != first); - - return !first; + return llist_add_batch(new, new, head); } /** @@ -173,9 +170,6 @@ static inline struct llist_node *llist_del_all(struct llist_head *head) return xchg(&head->first, NULL); } -extern bool llist_add_batch(struct llist_node *new_first, - struct llist_node *new_last, - struct llist_head *head); extern struct llist_node *llist_del_first(struct llist_head *head); #endif /* LLIST_H */ -- cgit v1.2.1 From a95e691f9c4a6e24fdeab6d7feae6d5411fe8a69 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sun, 14 Jul 2013 16:43:54 +0400 Subject: rpc_create_*_dir: don't bother with qstr just pass the name Signed-off-by: Al Viro --- include/linux/sunrpc/rpc_pipe_fs.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/include/linux/sunrpc/rpc_pipe_fs.h b/include/linux/sunrpc/rpc_pipe_fs.h index a7b422b33eda..aa5b582cc471 100644 --- a/include/linux/sunrpc/rpc_pipe_fs.h +++ b/include/linux/sunrpc/rpc_pipe_fs.h @@ -73,12 +73,12 @@ extern ssize_t rpc_pipe_generic_upcall(struct file *, struct rpc_pipe_msg *, extern int rpc_queue_upcall(struct rpc_pipe *, struct rpc_pipe_msg *); struct rpc_clnt; -extern struct dentry *rpc_create_client_dir(struct dentry *, struct qstr *, struct rpc_clnt *); +extern struct dentry *rpc_create_client_dir(struct dentry *, const char *, struct rpc_clnt *); extern int rpc_remove_client_dir(struct dentry *); struct cache_detail; extern struct dentry *rpc_create_cache_dir(struct dentry *, - struct qstr *, + const char *, umode_t umode, struct cache_detail *); extern void rpc_remove_cache_dir(struct dentry *); -- cgit v1.2.1 From 1258ca805f613025ec079d959d4a78acfb1f79d3 Mon Sep 17 00:00:00 2001 From: Chanwoo Choi Date: Thu, 11 Jul 2013 13:55:58 +0900 Subject: PM / Sleep: Fix comment typo in pm_wakeup.h Fix a comment typo (sorce -> source) in pm_wakeup.h. [rjw: Changelog] Signed-off-by: Chanwoo Choi Signed-off-by: Rafael J. Wysocki --- include/linux/pm_wakeup.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/include/linux/pm_wakeup.h b/include/linux/pm_wakeup.h index 569781faa504..a0f70808d7f4 100644 --- a/include/linux/pm_wakeup.h +++ b/include/linux/pm_wakeup.h @@ -36,8 +36,8 @@ * @last_time: Monotonic clock when the wakeup source's was touched last time. * @prevent_sleep_time: Total time this source has been preventing autosleep. * @event_count: Number of signaled wakeup events. - * @active_count: Number of times the wakeup sorce was activated. - * @relax_count: Number of times the wakeup sorce was deactivated. + * @active_count: Number of times the wakeup source was activated. + * @relax_count: Number of times the wakeup source was deactivated. * @expire_count: Number of times the wakeup source's timeout has expired. * @wakeup_count: Number of times the wakeup source might abort suspend. * @active: Status of the wakeup source. -- cgit v1.2.1 From 0db0628d90125193280eabb501c94feaf48fa9ab Mon Sep 17 00:00:00 2001 From: Paul Gortmaker Date: Wed, 19 Jun 2013 14:53:51 -0400 Subject: kernel: delete __cpuinit usage from all core kernel files The __cpuinit type of throwaway sections might have made sense some time ago when RAM was more constrained, but now the savings do not offset the cost and complications. For example, the fix in commit 5e427ec2d0 ("x86: Fix bit corruption at CPU resume time") is a good example of the nasty type of bugs that can be created with improper use of the various __init prefixes. After a discussion on LKML[1] it was decided that cpuinit should go the way of devinit and be phased out. Once all the users are gone, we can then finally remove the macros themselves from linux/init.h. This removes all the uses of the __cpuinit macros from C files in the core kernel directories (kernel, init, lib, mm, and include) that don't really have a specific maintainer. [1] https://lkml.org/lkml/2013/5/20/589 Signed-off-by: Paul Gortmaker --- include/linux/cpu.h | 2 +- include/linux/perf_event.h | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/include/linux/cpu.h b/include/linux/cpu.h index 944f283f01c4..ab0eade73039 100644 --- a/include/linux/cpu.h +++ b/include/linux/cpu.h @@ -114,7 +114,7 @@ enum { /* Need to know about CPUs going up/down? */ #if defined(CONFIG_HOTPLUG_CPU) || !defined(MODULE) #define cpu_notifier(fn, pri) { \ - static struct notifier_block fn##_nb __cpuinitdata = \ + static struct notifier_block fn##_nb = \ { .notifier_call = fn, .priority = pri }; \ register_cpu_notifier(&fn##_nb); \ } diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h index 8873f82c7baa..c43f6eabad5b 100644 --- a/include/linux/perf_event.h +++ b/include/linux/perf_event.h @@ -826,7 +826,7 @@ static inline void perf_restore_debug_store(void) { } */ #define perf_cpu_notifier(fn) \ do { \ - static struct notifier_block fn##_nb __cpuinitdata = \ + static struct notifier_block fn##_nb = \ { .notifier_call = fn, .priority = CPU_PRI_PERF }; \ unsigned long cpu = smp_processor_id(); \ unsigned long flags; \ -- cgit v1.2.1 From b9b3259746d77f4fcb786e2a43c25bcc40773755 Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman Date: Sun, 14 Jul 2013 16:05:51 -0700 Subject: sysfs.h: add __ATTR_RW() macro A number of parts of the kernel created their own version of this, might as well have the sysfs core provide it instead. Reviewed-by: Guenter Roeck Tested-by: Guenter Roeck Signed-off-by: Greg Kroah-Hartman --- include/linux/sysfs.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include') diff --git a/include/linux/sysfs.h b/include/linux/sysfs.h index e2cee22f578a..9cd20c8404e5 100644 --- a/include/linux/sysfs.h +++ b/include/linux/sysfs.h @@ -79,6 +79,8 @@ struct attribute_group { .show = _name##_show, \ } +#define __ATTR_RW(_name) __ATTR(_name, 0644, _name##_show, _name##_store) + #define __ATTR_NULL { .attr = { .name = NULL } } #ifdef CONFIG_DEBUG_LOCK_ALLOC -- cgit v1.2.1 From f2f37f58b1b933b06d6d84e80a31a1b500fb0db2 Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman Date: Sun, 14 Jul 2013 16:05:52 -0700 Subject: sysfs.h: add ATTRIBUTE_GROUPS() macro To make it easier for driver subsystems to work with attribute groups, create the ATTRIBUTE_GROUPS macro to remove some of the repetitive typing for the most common use for attribute groups. Reviewed-by: Guenter Roeck Tested-by: Guenter Roeck Signed-off-by: Greg Kroah-Hartman --- include/linux/sysfs.h | 9 +++++++++ 1 file changed, 9 insertions(+) (limited to 'include') diff --git a/include/linux/sysfs.h b/include/linux/sysfs.h index 9cd20c8404e5..f62ff01e5f59 100644 --- a/include/linux/sysfs.h +++ b/include/linux/sysfs.h @@ -94,6 +94,15 @@ struct attribute_group { #define __ATTR_IGNORE_LOCKDEP __ATTR #endif +#define ATTRIBUTE_GROUPS(name) \ +static const struct attribute_group name##_group = { \ + .attrs = name##_attrs, \ +}; \ +static const struct attribute_group *name##_groups[] = { \ + &name##_group, \ + NULL, \ +} + #define attr_name(_attr) (_attr).attr.name struct file; -- cgit v1.2.1 From e4b63603c2a1e2c4db3de11b0f2b17360a7695bb Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman Date: Sun, 14 Jul 2013 16:05:53 -0700 Subject: sysfs.h: add BIN_ATTR macro This makes it easier to create static binary attributes, which is needed in a number of drivers, instead of "open coding" them. Reviewed-by: Guenter Roeck Tested-by: Guenter Roeck Signed-off-by: Greg Kroah-Hartman --- include/linux/sysfs.h | 9 +++++++++ 1 file changed, 9 insertions(+) (limited to 'include') diff --git a/include/linux/sysfs.h b/include/linux/sysfs.h index f62ff01e5f59..d50a96b9bb6d 100644 --- a/include/linux/sysfs.h +++ b/include/linux/sysfs.h @@ -132,6 +132,15 @@ struct bin_attribute { */ #define sysfs_bin_attr_init(bin_attr) sysfs_attr_init(&(bin_attr)->attr) +/* macro to create static binary attributes easier */ +#define BIN_ATTR(_name, _mode, _read, _write, _size) \ +struct bin_attribute bin_attr_##_name = { \ + .attr = {.name = __stringify(_name), .mode = _mode }, \ + .read = _read, \ + .write = _write, \ + .size = _size, \ +} + struct sysfs_ops { ssize_t (*show)(struct kobject *, struct attribute *,char *); ssize_t (*store)(struct kobject *,struct attribute *,const char *, size_t); -- cgit v1.2.1 From ced321bf9151535f85779b0004c93529f860b2a4 Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman Date: Sun, 14 Jul 2013 16:05:54 -0700 Subject: driver core: device.h: add RW and RO attribute macros Make it easier to create attributes without having to always audit the mode settings. Reviewed-by: Guenter Roeck Tested-by: Guenter Roeck Signed-off-by: Greg Kroah-Hartman --- include/linux/device.h | 28 +++++++++++++++++++++------- 1 file changed, 21 insertions(+), 7 deletions(-) (limited to 'include') diff --git a/include/linux/device.h b/include/linux/device.h index bcf8c0d4cd98..f207a8f49f80 100644 --- a/include/linux/device.h +++ b/include/linux/device.h @@ -47,7 +47,11 @@ struct bus_attribute { }; #define BUS_ATTR(_name, _mode, _show, _store) \ -struct bus_attribute bus_attr_##_name = __ATTR(_name, _mode, _show, _store) + struct bus_attribute bus_attr_##_name = __ATTR(_name, _mode, _show, _store) +#define BUS_ATTR_RW(_name) \ + struct bus_attribute bus_attr_##_name = __ATTR_RW(_name) +#define BUS_ATTR_RO(_name) \ + struct bus_attribute bus_attr_##_name = __ATTR_RO(_name) extern int __must_check bus_create_file(struct bus_type *, struct bus_attribute *); @@ -261,9 +265,12 @@ struct driver_attribute { size_t count); }; -#define DRIVER_ATTR(_name, _mode, _show, _store) \ -struct driver_attribute driver_attr_##_name = \ - __ATTR(_name, _mode, _show, _store) +#define DRIVER_ATTR(_name, _mode, _show, _store) \ + struct driver_attribute driver_attr_##_name = __ATTR(_name, _mode, _show, _store) +#define DRIVER_ATTR_RW(_name) \ + struct driver_attribute driver_attr_##_name = __ATTR_RW(_name) +#define DRIVER_ATTR_RO(_name) \ + struct driver_attribute driver_attr_##_name = __ATTR_RO(_name) extern int __must_check driver_create_file(struct device_driver *driver, const struct driver_attribute *attr); @@ -414,8 +421,12 @@ struct class_attribute { const struct class_attribute *attr); }; -#define CLASS_ATTR(_name, _mode, _show, _store) \ -struct class_attribute class_attr_##_name = __ATTR(_name, _mode, _show, _store) +#define CLASS_ATTR(_name, _mode, _show, _store) \ + struct class_attribute class_attr_##_name = __ATTR(_name, _mode, _show, _store) +#define CLASS_ATTR_RW(_name) \ + struct class_attribute class_attr_##_name = __ATTR_RW(_name) +#define CLASS_ATTR_RO(_name) \ + struct class_attribute class_attr_##_name = __ATTR_RO(_name) extern int __must_check class_create_file(struct class *class, const struct class_attribute *attr); @@ -423,7 +434,6 @@ extern void class_remove_file(struct class *class, const struct class_attribute *attr); /* Simple class attribute that is just a static string */ - struct class_attribute_string { struct class_attribute attr; char *str; @@ -512,6 +522,10 @@ ssize_t device_store_bool(struct device *dev, struct device_attribute *attr, #define DEVICE_ATTR(_name, _mode, _show, _store) \ struct device_attribute dev_attr_##_name = __ATTR(_name, _mode, _show, _store) +#define DEVICE_ATTR_RW(_name) \ + struct device_attribute dev_attr_##_name = __ATTR_RW(_name) +#define DEVICE_ATTR_RO(_name) \ + struct device_attribute dev_attr_##_name = __ATTR_RO(_name) #define DEVICE_ULONG_ATTR(_name, _mode, _var) \ struct dev_ext_attribute dev_attr_##_name = \ { __ATTR(_name, _mode, device_show_ulong, device_store_ulong), &(_var) } -- cgit v1.2.1 From 6ab9cea16075ea707022753395f340b67f64304c Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman Date: Sun, 14 Jul 2013 16:05:55 -0700 Subject: sysfs: add support for binary attributes in groups groups should be able to support binary attributes, just like it supports "normal" attributes. This lets us only handle one type of structure, groups, throughout the driver core and subsystems, making binary attributes a "full fledged" part of the driver model, and not something just "tacked on". Reported-by: Oliver Schinagl Reviewed-by: Guenter Roeck Tested-by: Guenter Roeck Signed-off-by: Greg Kroah-Hartman --- include/linux/sysfs.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/include/linux/sysfs.h b/include/linux/sysfs.h index d50a96b9bb6d..2c3b6a30697d 100644 --- a/include/linux/sysfs.h +++ b/include/linux/sysfs.h @@ -21,6 +21,7 @@ struct kobject; struct module; +struct bin_attribute; enum kobj_ns_type; struct attribute { @@ -59,10 +60,9 @@ struct attribute_group { umode_t (*is_visible)(struct kobject *, struct attribute *, int); struct attribute **attrs; + struct bin_attribute **bin_attrs; }; - - /** * Use these macros to make defining attributes easier. See include/linux/device.h * for examples.. -- cgit v1.2.1 From 39ef311204941ddd01ea2950d6220c8ccc710d15 Mon Sep 17 00:00:00 2001 From: Guenter Roeck Date: Sun, 14 Jul 2013 16:05:57 -0700 Subject: driver core: Introduce device_create_groups device_create_groups lets callers create devices as well as associated sysfs attributes with a single call. This avoids race conditions seen if sysfs attributes on new devices are created later. [fixed up comment block placement and add checks for printk buffer formats - gregkh] Signed-off-by: Guenter Roeck Cc: Jean Delvare Signed-off-by: Greg Kroah-Hartman --- include/linux/device.h | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'include') diff --git a/include/linux/device.h b/include/linux/device.h index f207a8f49f80..bd5931e89f74 100644 --- a/include/linux/device.h +++ b/include/linux/device.h @@ -938,6 +938,11 @@ extern __printf(5, 6) struct device *device_create(struct class *cls, struct device *parent, dev_t devt, void *drvdata, const char *fmt, ...); +extern __printf(6, 7) +struct device *device_create_with_groups(struct class *cls, + struct device *parent, dev_t devt, void *drvdata, + const struct attribute_group **groups, + const char *fmt, ...); extern void device_destroy(struct class *cls, dev_t devt); /* -- cgit v1.2.1 From d05a6f96c76062b5f25858ac02cf677602076f7e Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman Date: Sun, 14 Jul 2013 16:05:58 -0700 Subject: driver core: add default groups to struct class We should be using groups, not attribute lists, for classes to allow subdirectories, and soon, binary files. Groups are just more flexible overall, so add them. The dev_attrs list will go away after all in-kernel users are converted to use dev_groups. Reviewed-by: Guenter Roeck Tested-by: Guenter Roeck Signed-off-by: Greg Kroah-Hartman --- include/linux/device.h | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/include/linux/device.h b/include/linux/device.h index bd5931e89f74..22b546a58591 100644 --- a/include/linux/device.h +++ b/include/linux/device.h @@ -320,6 +320,7 @@ int subsys_virtual_register(struct bus_type *subsys, * @name: Name of the class. * @owner: The module owner. * @class_attrs: Default attributes of this class. + * @dev_groups: Default attributes of the devices that belong to the class. * @dev_attrs: Default attributes of the devices belong to the class. * @dev_bin_attrs: Default binary attributes of the devices belong to the class. * @dev_kobj: The kobject that represents this class and links it into the hierarchy. @@ -349,7 +350,8 @@ struct class { struct module *owner; struct class_attribute *class_attrs; - struct device_attribute *dev_attrs; + struct device_attribute *dev_attrs; /* use dev_groups instead */ + const struct attribute_group **dev_groups; struct bin_attribute *dev_bin_attrs; struct kobject *dev_kobj; -- cgit v1.2.1 From 3493f69f4c4e8703961919a9a56c2d2e6a25b46f Mon Sep 17 00:00:00 2001 From: Oliver Schinagl Date: Sun, 14 Jul 2013 16:05:59 -0700 Subject: sysfs: add more helper macro's for (bin_)attribute(_groups) With the recent changes to sysfs there's various helper macro's. However there's no RW, RO BIN_ helper macro's. This patch adds them. Signed-off-by: Oliver Schinagl Signed-off-by: Greg Kroah-Hartman --- include/linux/sysfs.h | 51 ++++++++++++++++++++++++++++++++++++++------------- 1 file changed, 38 insertions(+), 13 deletions(-) (limited to 'include') diff --git a/include/linux/sysfs.h b/include/linux/sysfs.h index 2c3b6a30697d..d907a7328025 100644 --- a/include/linux/sysfs.h +++ b/include/linux/sysfs.h @@ -17,6 +17,7 @@ #include #include #include +#include #include struct kobject; @@ -94,15 +95,18 @@ struct attribute_group { #define __ATTR_IGNORE_LOCKDEP __ATTR #endif -#define ATTRIBUTE_GROUPS(name) \ -static const struct attribute_group name##_group = { \ - .attrs = name##_attrs, \ -}; \ -static const struct attribute_group *name##_groups[] = { \ - &name##_group, \ +#define __ATTRIBUTE_GROUPS(_name) \ +static const struct attribute_group *_name##_groups[] = { \ + &_name##_group, \ NULL, \ } +#define ATTRIBUTE_GROUPS(_name) \ +static const struct attribute_group _name##_group = { \ + .attrs = _name##_attrs, \ +}; \ +__ATTRIBUTE_GROUPS(_name) + #define attr_name(_attr) (_attr).attr.name struct file; @@ -132,15 +136,36 @@ struct bin_attribute { */ #define sysfs_bin_attr_init(bin_attr) sysfs_attr_init(&(bin_attr)->attr) -/* macro to create static binary attributes easier */ -#define BIN_ATTR(_name, _mode, _read, _write, _size) \ -struct bin_attribute bin_attr_##_name = { \ - .attr = {.name = __stringify(_name), .mode = _mode }, \ - .read = _read, \ - .write = _write, \ - .size = _size, \ +/* macros to create static binary attributes easier */ +#define __BIN_ATTR(_name, _mode, _read, _write, _size) { \ + .attr = { .name = __stringify(_name), .mode = _mode }, \ + .read = _read, \ + .write = _write, \ + .size = _size, \ +} + +#define __BIN_ATTR_RO(_name, _size) { \ + .attr = { .name = __stringify(_name), .mode = S_IRUGO }, \ + .read = _name##_read, \ + .size = _size, \ } +#define __BIN_ATTR_RW(_name, _size) __BIN_ATTR(_name, \ + (S_IWUSR | S_IRUGO), _name##_read, \ + _name##_write) + +#define __BIN_ATTR_NULL __ATTR_NULL + +#define BIN_ATTR(_name, _mode, _read, _write, _size) \ +struct bin_attribute bin_attr_##_name = __BIN_ATTR(_name, _mode, _read, \ + _write, _size) + +#define BIN_ATTR_RO(_name, _size) \ +struct bin_attribute bin_attr_##_name = __BIN_ATTR_RO(_name, _size) + +#define BIN_ATTR_RW(_name, _size) \ +struct bin_attribute bin_attr_##_name = __BIN_ATTR_RW(_name, _size) + struct sysfs_ops { ssize_t (*show)(struct kobject *, struct attribute *,char *); ssize_t (*store)(struct kobject *,struct attribute *,const char *, size_t); -- cgit v1.2.1 From aa01aa3ca205ea04f44423a58bae38aec886fb96 Mon Sep 17 00:00:00 2001 From: Oliver Schinagl Date: Sun, 14 Jul 2013 16:06:00 -0700 Subject: sysfs: use file mode defines from stat.h With the last patches stat.h was included to the header, and thus those permission defines should be used. Signed-off-by: Oliver Schinagl Signed-off-by: Greg Kroah-Hartman --- include/linux/sysfs.h | 17 +++++++++-------- 1 file changed, 9 insertions(+), 8 deletions(-) (limited to 'include') diff --git a/include/linux/sysfs.h b/include/linux/sysfs.h index d907a7328025..9e8a9b555ad6 100644 --- a/include/linux/sysfs.h +++ b/include/linux/sysfs.h @@ -69,18 +69,19 @@ struct attribute_group { * for examples.. */ -#define __ATTR(_name,_mode,_show,_store) { \ - .attr = {.name = __stringify(_name), .mode = _mode }, \ - .show = _show, \ - .store = _store, \ +#define __ATTR(_name,_mode,_show,_store) { \ + .attr = {.name = __stringify(_name), .mode = _mode }, \ + .show = _show, \ + .store = _store, \ } -#define __ATTR_RO(_name) { \ - .attr = { .name = __stringify(_name), .mode = 0444 }, \ - .show = _name##_show, \ +#define __ATTR_RO(_name) { \ + .attr = { .name = __stringify(_name), .mode = S_IRUGO }, \ + .show = _name##_show, \ } -#define __ATTR_RW(_name) __ATTR(_name, 0644, _name##_show, _name##_store) +#define __ATTR_RW(_name) __ATTR(_name, (S_IWUSR | S_IRUGO), \ + _name##_show, _name##_store) #define __ATTR_NULL { .attr = { .name = NULL } } -- cgit v1.2.1 From c0d15cc7ee8c0d1970197d9eb1727503bcdd2471 Mon Sep 17 00:00:00 2001 From: Dave Jones Date: Tue, 16 Jul 2013 22:44:08 -0400 Subject: linked-list: Remove __list_for_each __list_for_each used to be the non prefetch() aware list walking primitive. When we removed the prefetch macros from the list routines, it became redundant. Given it does exactly the same thing as list_for_each now, we might as well remove it and call list_for_each directly. All users of __list_for_each have been converted to list_for_each calls in the current merge window. Signed-off-by: Dave Jones Signed-off-by: Linus Torvalds --- include/linux/list.h | 11 ----------- 1 file changed, 11 deletions(-) (limited to 'include') diff --git a/include/linux/list.h b/include/linux/list.h index b83e5657365a..f4d8a2f12a33 100644 --- a/include/linux/list.h +++ b/include/linux/list.h @@ -380,17 +380,6 @@ static inline void list_splice_tail_init(struct list_head *list, #define list_for_each(pos, head) \ for (pos = (head)->next; pos != (head); pos = pos->next) -/** - * __list_for_each - iterate over a list - * @pos: the &struct list_head to use as a loop cursor. - * @head: the head for your list. - * - * This variant doesn't differ from list_for_each() any more. - * We don't do prefetching in either case. - */ -#define __list_for_each(pos, head) \ - for (pos = (head)->next; pos != (head); pos = pos->next) - /** * list_for_each_prev - iterate over a list backwards * @pos: the &struct list_head to use as a loop cursor. -- cgit v1.2.1 From 242b2287cd7f27521c8b54a4101d569e53e7a0ca Mon Sep 17 00:00:00 2001 From: Aaron Lu Date: Tue, 2 Jul 2013 21:59:10 +0800 Subject: ACPICA: expose OSI version Expose acpi_gbl_osi_data so that code outside of ACPICA can check the value of the last successfull _OSI call. The definitions for OSI versions are moved to actypes.h so that other components can access them too. Based on a patch from Matthew Garrett which in turn was based on an earlier patch from Seth Forshee. [rjw: Changelog] Signed-off-by: Aaron Lu Signed-off-by: Rafael J. Wysocki --- include/acpi/acpixf.h | 1 + include/acpi/actypes.h | 15 +++++++++++++++ 2 files changed, 16 insertions(+) (limited to 'include') diff --git a/include/acpi/acpixf.h b/include/acpi/acpixf.h index 1b09300810e6..22d497ee6ef9 100644 --- a/include/acpi/acpixf.h +++ b/include/acpi/acpixf.h @@ -62,6 +62,7 @@ extern u32 acpi_current_gpe_count; extern struct acpi_table_fadt acpi_gbl_FADT; extern u8 acpi_gbl_system_awake_and_running; extern u8 acpi_gbl_reduced_hardware; /* ACPI 5.0 */ +extern u8 acpi_gbl_osi_data; /* Runtime configuration of debug print levels */ diff --git a/include/acpi/actypes.h b/include/acpi/actypes.h index a64adcc29ae5..22b03c9286e9 100644 --- a/include/acpi/actypes.h +++ b/include/acpi/actypes.h @@ -1144,4 +1144,19 @@ struct acpi_memory_list { #endif }; +/* Definitions for _OSI support */ + +#define ACPI_OSI_WIN_2000 0x01 +#define ACPI_OSI_WIN_XP 0x02 +#define ACPI_OSI_WIN_XP_SP1 0x03 +#define ACPI_OSI_WINSRV_2003 0x04 +#define ACPI_OSI_WIN_XP_SP2 0x05 +#define ACPI_OSI_WINSRV_2003_SP1 0x06 +#define ACPI_OSI_WIN_VISTA 0x07 +#define ACPI_OSI_WINSRV_2008 0x08 +#define ACPI_OSI_WIN_VISTA_SP1 0x09 +#define ACPI_OSI_WIN_VISTA_SP2 0x0A +#define ACPI_OSI_WIN_7 0x0B +#define ACPI_OSI_WIN_8 0x0C + #endif /* __ACTYPES_H__ */ -- cgit v1.2.1 From 8c5bd7adb2ce47e6aa39d17b2375f69b0c0aa255 Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Thu, 18 Jul 2013 02:08:06 +0200 Subject: ACPI / video / i915: No ACPI backlight if firmware expects Windows 8 According to Matthew Garrett, "Windows 8 leaves backlight control up to individual graphics drivers rather than making ACPI calls itself. There's plenty of evidence to suggest that the Intel driver for Windows [8] doesn't use the ACPI interface, including the fact that it's broken on a bunch of machines when the OS claims to support Windows 8. The simplest thing to do appears to be to disable the ACPI backlight interface on these systems". There's a problem with that approach, however, because simply avoiding to register the ACPI backlight interface if the firmware calls _OSI for Windows 8 may not work in the following situations: (1) The ACPI backlight interface actually works on the given system and the i915 driver is not loaded (e.g. another graphics driver is used). (2) The ACPI backlight interface doesn't work on the given system, but there is a vendor platform driver that will register its own, equally broken, backlight interface if not prevented from doing so by the ACPI subsystem. Therefore we need to allow the ACPI backlight interface to be registered until the i915 driver is loaded which then will unregister it if the firmware has called _OSI for Windows 8 (or will register the ACPI video driver without backlight support if not already present). For this reason, introduce an alternative function for registering ACPI video, acpi_video_register_with_quirks(), that will check whether or not the ACPI video driver has already been registered and whether or not the backlight Windows 8 quirk has to be applied. If the quirk has to be applied, it will block the ACPI backlight support and either unregister the backlight interface if the ACPI video driver has already been registered, or register the ACPI video driver without the backlight interface otherwise. Make the i915 driver use acpi_video_register_with_quirks() instead of acpi_video_register() in i915_driver_load(). This change is based on earlier patches from Matthew Garrett, Chun-Yi Lee and Seth Forshee and includes a fix from Aaron Lu's. References: https://bugzilla.kernel.org/show_bug.cgi?id=51231 Tested-by: Aaron Lu Tested-by: Igor Gnatenko Tested-by: Yves-Alexis Perez Signed-off-by: Rafael J. Wysocki Reviewed-by: Aaron Lu Acked-by: Matthew Garrett --- include/acpi/video.h | 11 ++++++++++- include/linux/acpi.h | 1 + 2 files changed, 11 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/include/acpi/video.h b/include/acpi/video.h index 61109f2609fc..b26dc4fb7ba8 100644 --- a/include/acpi/video.h +++ b/include/acpi/video.h @@ -17,12 +17,21 @@ struct acpi_device; #define ACPI_VIDEO_DISPLAY_LEGACY_TV 0x0200 #if (defined CONFIG_ACPI_VIDEO || defined CONFIG_ACPI_VIDEO_MODULE) -extern int acpi_video_register(void); +extern int __acpi_video_register(bool backlight_quirks); +static inline int acpi_video_register(void) +{ + return __acpi_video_register(false); +} +static inline int acpi_video_register_with_quirks(void) +{ + return __acpi_video_register(true); +} extern void acpi_video_unregister(void); extern int acpi_video_get_edid(struct acpi_device *device, int type, int device_id, void **edid); #else static inline int acpi_video_register(void) { return 0; } +static inline int acpi_video_register_with_quirks(void) { return 0; } static inline void acpi_video_unregister(void) { return; } static inline int acpi_video_get_edid(struct acpi_device *device, int type, int device_id, void **edid) diff --git a/include/linux/acpi.h b/include/linux/acpi.h index 353ba256f368..6ad72f92469c 100644 --- a/include/linux/acpi.h +++ b/include/linux/acpi.h @@ -191,6 +191,7 @@ extern bool wmi_has_guid(const char *guid); #define ACPI_VIDEO_BACKLIGHT_DMI_VIDEO 0x0200 #define ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VENDOR 0x0400 #define ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VIDEO 0x0800 +#define ACPI_VIDEO_SKIP_BACKLIGHT 0x1000 #if defined(CONFIG_ACPI_VIDEO) || defined(CONFIG_ACPI_VIDEO_MODULE) -- cgit v1.2.1 From d4b812dea4a236f729526facf97df1a9d18e191c Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Thu, 18 Jul 2013 07:19:26 -0700 Subject: vlan: mask vlan prio bits In commit 48cc32d38a52d0b68f91a171a8d00531edc6a46e ("vlan: don't deliver frames for unknown vlans to protocols") Florian made sure we set pkt_type to PACKET_OTHERHOST if the vlan id is set and we could find a vlan device for this particular id. But we also have a problem if prio bits are set. Steinar reported an issue on a router receiving IPv6 frames with a vlan tag of 4000 (id 0, prio 2), and tunneled into a sit device, because skb->vlan_tci is set. Forwarded frame is completely corrupted : We can see (8100:4000) being inserted in the middle of IPv6 source address : 16:48:00.780413 IP6 2001:16d8:8100:4000:ee1c:0:9d9:bc87 > 9f94:4d95:2001:67c:29f4::: ICMP6, unknown icmp6 type (0), length 64 0x0000: 0000 0029 8000 c7c3 7103 0001 a0ae e651 0x0010: 0000 0000 ccce 0b00 0000 0000 1011 1213 0x0020: 1415 1617 1819 1a1b 1c1d 1e1f 2021 2223 0x0030: 2425 2627 2829 2a2b 2c2d 2e2f 3031 3233 It seems we are not really ready to properly cope with this right now. We can probably do better in future kernels : vlan_get_ingress_priority() should be a netdev property instead of a per vlan_dev one. For stable kernels, lets clear vlan_tci to fix the bugs. Reported-by: Steinar H. Gunderson Signed-off-by: Eric Dumazet Signed-off-by: David S. Miller --- include/linux/if_vlan.h | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) (limited to 'include') diff --git a/include/linux/if_vlan.h b/include/linux/if_vlan.h index cdcbafa9b39a..715c343f7c00 100644 --- a/include/linux/if_vlan.h +++ b/include/linux/if_vlan.h @@ -79,9 +79,8 @@ static inline int is_vlan_dev(struct net_device *dev) } #define vlan_tx_tag_present(__skb) ((__skb)->vlan_tci & VLAN_TAG_PRESENT) -#define vlan_tx_nonzero_tag_present(__skb) \ - (vlan_tx_tag_present(__skb) && ((__skb)->vlan_tci & VLAN_VID_MASK)) #define vlan_tx_tag_get(__skb) ((__skb)->vlan_tci & ~VLAN_TAG_PRESENT) +#define vlan_tx_tag_get_id(__skb) ((__skb)->vlan_tci & VLAN_VID_MASK) #if defined(CONFIG_VLAN_8021Q) || defined(CONFIG_VLAN_8021Q_MODULE) -- cgit v1.2.1 From ba57ea64cb1820deb37637de0fdb107f0dc90089 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sat, 20 Jul 2013 03:11:32 +0400 Subject: allow O_TMPFILE to work with O_WRONLY Signed-off-by: Al Viro --- include/uapi/asm-generic/fcntl.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/include/uapi/asm-generic/fcntl.h b/include/uapi/asm-generic/fcntl.h index 05ac354e124d..95e46c8e05f9 100644 --- a/include/uapi/asm-generic/fcntl.h +++ b/include/uapi/asm-generic/fcntl.h @@ -89,8 +89,8 @@ #endif /* a horrid kludge trying to make sure that this will fail on old kernels */ -#define O_TMPFILE (__O_TMPFILE | O_DIRECTORY | O_RDWR) -#define O_TMPFILE_MASK (__O_TMPFILE | O_DIRECTORY | O_CREAT | O_ACCMODE) +#define O_TMPFILE (__O_TMPFILE | O_DIRECTORY) +#define O_TMPFILE_MASK (__O_TMPFILE | O_DIRECTORY | O_CREAT) #ifndef O_NDELAY #define O_NDELAY O_NONBLOCK -- cgit v1.2.1 From 24924a20dab603089011f9d3eb7622f0f6ef93c0 Mon Sep 17 00:00:00 2001 From: Peng Tao Date: Thu, 18 Jul 2013 22:09:08 +0800 Subject: vfs: constify dentry parameter in d_count() so that it can be used in places like d_compare/d_hash without causing a compiler warning. Signed-off-by: Peng Tao Signed-off-by: Al Viro --- include/linux/dcache.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include') diff --git a/include/linux/dcache.h b/include/linux/dcache.h index 3092df3614ae..b90337c9d468 100644 --- a/include/linux/dcache.h +++ b/include/linux/dcache.h @@ -324,7 +324,7 @@ static inline int __d_rcu_to_refcount(struct dentry *dentry, unsigned seq) return ret; } -static inline unsigned d_count(struct dentry *dentry) +static inline unsigned d_count(const struct dentry *dentry) { return dentry->d_count; } -- cgit v1.2.1