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Commit 674d8bde authored by Dave Jiang's avatar Dave Jiang Committed by Dan Williams
Browse files

libnvdimm/nfit_test: adding support for unit testing enable LSS status 



Adding support code to simulate the enabling of LSS status in support of
the Intel DSM v1.6 Function Index 10: Enable Latch System Shutdown Status.
This is only for testing of libndctl support for LSS enable. The actual
functionality requires a reboot and therefore is not simulated. The enable
value is not recorded in nfit_test since there's no DSM to actually query
the current status of the LSS enable.

Signed-off-by: default avatarDave Jiang <dave.jiang@intel.com>
Reviewed-by: default avatarVishal Verma <vishal.l.verma@intel.com>
Signed-off-by: default avatarDan Williams <dan.j.williams@intel.com>
parent bfbaa952

tools/testing/nvdimm/test/nfit.c

+34 −0
Original line number Diff line number Diff line
@@ -821,6 +821,35 @@ static int nfit_test_cmd_ars_inject_status(struct nfit_test *t, 
	return 0;

}



static int nd_intel_test_cmd_set_lss_status(struct nfit_test *t,

		struct nd_intel_lss *nd_cmd, unsigned int buf_len)

{

	struct device *dev = &t->pdev.dev;



	if (buf_len < sizeof(*nd_cmd))

		return -EINVAL;



	switch (nd_cmd->enable) {

	case 0:

		nd_cmd->status = 0;

		dev_dbg(dev, "%s: Latch System Shutdown Status disabled\n",

				__func__);

		break;

	case 1:

		nd_cmd->status = 0;

		dev_dbg(dev, "%s: Latch System Shutdown Status enabled\n",

				__func__);

		break;

	default:

		dev_warn(dev, "Unknown enable value: %#x\n", nd_cmd->enable);

		nd_cmd->status = 0x3;

		break;

	}





	return 0;

}



static int get_dimm(struct nfit_mem *nfit_mem, unsigned int func)

{

	int i;
@@ -872,6 +901,9 @@ static int nfit_test_ctl(struct nvdimm_bus_descriptor *nd_desc, 
				return i;



			switch (func) {

			case ND_INTEL_ENABLE_LSS_STATUS:

				return nd_intel_test_cmd_set_lss_status(t,

						buf, buf_len);

			case ND_INTEL_FW_GET_INFO:

				return nd_intel_test_get_fw_info(t, buf,

						buf_len, i - t->dcr_idx);
@@ -1997,6 +2029,7 @@ static void nfit_test0_setup(struct nfit_test *t) 
	set_bit(ND_INTEL_FW_SEND_DATA, &acpi_desc->dimm_cmd_force_en);

	set_bit(ND_INTEL_FW_FINISH_UPDATE, &acpi_desc->dimm_cmd_force_en);

	set_bit(ND_INTEL_FW_FINISH_QUERY, &acpi_desc->dimm_cmd_force_en);

	set_bit(ND_INTEL_ENABLE_LSS_STATUS, &acpi_desc->dimm_cmd_force_en);

}



static void nfit_test1_setup(struct nfit_test *t)
@@ -2094,6 +2127,7 @@ static void nfit_test1_setup(struct nfit_test *t) 
	set_bit(ND_CMD_ARS_START, &acpi_desc->bus_cmd_force_en);

	set_bit(ND_CMD_ARS_STATUS, &acpi_desc->bus_cmd_force_en);

	set_bit(ND_CMD_CLEAR_ERROR, &acpi_desc->bus_cmd_force_en);

	set_bit(ND_INTEL_ENABLE_LSS_STATUS, &acpi_desc->dimm_cmd_force_en);

}



static int nfit_test_blk_do_io(struct nd_blk_region *ndbr, resource_size_t dpa,

tools/testing/nvdimm/test/nfit_test.h

+6 −0
Original line number Diff line number Diff line
@@ -86,6 +86,7 @@ struct nd_cmd_ars_err_inj_stat { 


#define ND_INTEL_SMART			 1

#define ND_INTEL_SMART_THRESHOLD	 2

#define ND_INTEL_ENABLE_LSS_STATUS	10

#define ND_INTEL_FW_GET_INFO		12

#define ND_INTEL_FW_START_UPDATE	13

#define ND_INTEL_FW_SEND_DATA		14
@@ -212,6 +213,11 @@ struct nd_intel_fw_finish_query { 
	__u64 updated_fw_rev;

} __packed;



struct nd_intel_lss {

	__u8 enable;

	__u32 status;

} __packed;



union acpi_object;

typedef void *acpi_handle;