projects / linux-2.6-block.git / blame
| Commit | Line | Data |
|---|---|---|
| a9282d01 IM |
1 | Slave contexts (eg. /sys/class/cxl/afu0.0s): |
| 2 | ||
| 3 | What: /sys/class/cxl/<afu>/irqs_max | |
| 4 | Date: September 2014 | |
| 5 | Contact: linuxppc-dev@lists.ozlabs.org | |
| 6 | Description: read/write | |
| 7 | Decimal value of maximum number of interrupts that can be | |
| 8 | requested by userspace. The default on probe is the maximum | |
| 9 | that hardware can support (eg. 2037). Write values will limit | |
| 10 | userspace applications to that many userspace interrupts. Must | |
| 11 | be >= irqs_min. | |
| 12 | ||
| 13 | What: /sys/class/cxl/<afu>/irqs_min | |
| 14 | Date: September 2014 | |
| 15 | Contact: linuxppc-dev@lists.ozlabs.org | |
| 16 | Description: read only | |
| 17 | Decimal value of the minimum number of interrupts that | |
| 18 | userspace must request on a CXL_START_WORK ioctl. Userspace may | |
| 19 | omit the num_interrupts field in the START_WORK IOCTL to get | |
| 20 | this minimum automatically. | |
| 21 | ||
| 22 | What: /sys/class/cxl/<afu>/mmio_size | |
| 23 | Date: September 2014 | |
| 24 | Contact: linuxppc-dev@lists.ozlabs.org | |
| 25 | Description: read only | |
| 26 | Decimal value of the size of the MMIO space that may be mmaped | |
| 27 | by userspace. | |
| 28 | ||
| 29 | What: /sys/class/cxl/<afu>/modes_supported | |
| 30 | Date: September 2014 | |
| 31 | Contact: linuxppc-dev@lists.ozlabs.org | |
| 32 | Description: read only | |
| 33 | List of the modes this AFU supports. One per line. | |
| 34 | Valid entries are: "dedicated_process" and "afu_directed" | |
| 35 | ||
| 36 | What: /sys/class/cxl/<afu>/mode | |
| 37 | Date: September 2014 | |
| 38 | Contact: linuxppc-dev@lists.ozlabs.org | |
| 39 | Description: read/write | |
| 40 | The current mode the AFU is using. Will be one of the modes | |
| 41 | given in modes_supported. Writing will change the mode | |
| 42 | provided that no user contexts are attached. | |
| 43 | ||
| 44 | ||
| 45 | What: /sys/class/cxl/<afu>/prefault_mode | |
| 46 | Date: September 2014 | |
| 47 | Contact: linuxppc-dev@lists.ozlabs.org | |
| 48 | Description: read/write | |
| 49 | Set the mode for prefaulting in segments into the segment table | |
| 50 | when performing the START_WORK ioctl. Possible values: | |
| 51 | none: No prefaulting (default) | |
| 52 | work_element_descriptor: Treat the work element | |
| 53 | descriptor as an effective address and | |
| 54 | prefault what it points to. | |
| 55 | all: all segments process calling START_WORK maps. | |
| 56 | ||
| 57 | What: /sys/class/cxl/<afu>/reset | |
| 58 | Date: September 2014 | |
| 59 | Contact: linuxppc-dev@lists.ozlabs.org | |
| 60 | Description: write only | |
| 61 | Writing 1 here will reset the AFU provided there are not | |
| 62 | contexts active on the AFU. | |
| 63 | ||
| 64 | What: /sys/class/cxl/<afu>/api_version | |
| 65 | Date: September 2014 | |
| 66 | Contact: linuxppc-dev@lists.ozlabs.org | |
| 67 | Description: read only | |
| 68 | Decimal value of the current version of the kernel/user API. | |
| 69 | ||
| 70 | What: /sys/class/cxl/<afu>/api_version_com | |
| 71 | Date: September 2014 | |
| 72 | Contact: linuxppc-dev@lists.ozlabs.org | |
| 73 | Description: read only | |
| 74 | Decimal value of the the lowest version of the userspace API | |
| 75 | this this kernel supports. | |
| 76 | ||
| 77 | ||
| 78 | ||
| 79 | Master contexts (eg. /sys/class/cxl/afu0.0m) | |
| 80 | ||
| 81 | What: /sys/class/cxl/<afu>m/mmio_size | |
| 82 | Date: September 2014 | |
| 83 | Contact: linuxppc-dev@lists.ozlabs.org | |
| 84 | Description: read only | |
| 85 | Decimal value of the size of the MMIO space that may be mmaped | |
| 86 | by userspace. This includes all slave contexts space also. | |
| 87 | ||
| 88 | What: /sys/class/cxl/<afu>m/pp_mmio_len | |
| 89 | Date: September 2014 | |
| 90 | Contact: linuxppc-dev@lists.ozlabs.org | |
| 91 | Description: read only | |
| 92 | Decimal value of the Per Process MMIO space length. | |
| 93 | ||
| 94 | What: /sys/class/cxl/<afu>m/pp_mmio_off | |
| 95 | Date: September 2014 | |
| 96 | Contact: linuxppc-dev@lists.ozlabs.org | |
| 97 | Description: read only | |
| 98 | Decimal value of the Per Process MMIO space offset. | |
| 99 | ||
| 100 | ||
| 101 | Card info (eg. /sys/class/cxl/card0) | |
| 102 | ||
| 103 | What: /sys/class/cxl/<card>/caia_version | |
| 104 | Date: September 2014 | |
| 105 | Contact: linuxppc-dev@lists.ozlabs.org | |
| 106 | Description: read only | |
| 107 | Identifies the CAIA Version the card implements. | |
| 108 | ||
| 109 | What: /sys/class/cxl/<card>/psl_version | |
| 110 | Date: September 2014 | |
| 111 | Contact: linuxppc-dev@lists.ozlabs.org | |
| 112 | Description: read only | |
| 113 | Identifies the revision level of the PSL. | |
| 114 | ||
| 115 | What: /sys/class/cxl/<card>/base_image | |
| 116 | Date: September 2014 | |
| 117 | Contact: linuxppc-dev@lists.ozlabs.org | |
| 118 | Description: read only | |
| 119 | Identifies the revision level of the base image for devices | |
| 120 | that support loadable PSLs. For FPGAs this field identifies | |
| 121 | the image contained in the on-adapter flash which is loaded | |
| 122 | during the initial program load. | |
| 123 | ||
| 124 | What: /sys/class/cxl/<card>/image_loaded | |
| 125 | Date: September 2014 | |
| 126 | Contact: linuxppc-dev@lists.ozlabs.org | |
| 127 | Description: read only | |
| 128 | Will return "user" or "factory" depending on the image loaded | |
| 129 | onto the card. |