Jerry and I have been working towards a way to support the ACPI DSM command set needed by HPE DIMMs. The HPE command sets differ from the original Intel-defined command set already upstream. Ideally the kernel would only implement a single standard command format, however the standard is not yet available and devices implementing an alternate command set are already shipping. This rework of Jerry's initial patches [1] aims to support shipping devices while encouraging future / follow-on command definitions to wait for the standardization process to complete by: 1/ Requiring public documentation of commands 2/ Providing a mechanism to disable vendor-specific functionality See patch 2 for more details. This patch passes the existing nvdimm unit tests, but I have yet to extend the tests to target this new mechanism. Changes since v10: [1] 1/ Rewrote the commit message for the patch that introduces ND_CMD_CALL 2/ Replace 'nfit_cmd_family_tbl' with nfit_mem->family to clean up some lookup code. 3/ Squash and reorganize the 7 patches into a smaller set. Commit 8467ba4fc94a from my for-4.7/dsm branch [2] was also squashed. 4/ Add sysfs attributes for the dimm family and DSM function-supported mask. 5/ Add a module parameter to disable vendor specific commands [1]: https://lists.01.org/pipermail/linux-nvdimm/2016-April/005484.html [2]: https://git.kernel.org/cgit/linux/kernel/git/djbw/nvdimm.git/commit/?h=for-4.7/dsm&id=8467ba4fc94a --- Dan Williams (5): nfit, libnvdimm: clarify "commands" vs "_DSMs" nfit, libnvdimm: limited/whitelisted dimm command marshaling mechanism nfit: disable vendor specific commands tools/testing/nvdimm: ND_CMD_CALL support nfit: add sysfs dimm 'family' and 'dsm_mask' attributes drivers/acpi/nfit.c | 145 +++++++++++++++++++++++++++++++++----- drivers/acpi/nfit.h | 18 ++++- drivers/nvdimm/bus.c | 47 +++++++++++- drivers/nvdimm/core.c | 2 - drivers/nvdimm/dimm_devs.c | 18 +++-- drivers/nvdimm/nd-core.h | 2 - include/linux/libnvdimm.h | 5 + include/uapi/linux/ndctl.h | 42 +++++++++++ tools/testing/nvdimm/test/nfit.c | 46 ++++++++---- 9 files changed, 275 insertions(+), 50 deletions(-) -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
