Commit 87815ee9 authored by Ben Widawsky's avatar Ben Widawsky Committed by Dan Williams
Browse files

cxl/pci: Add media provisioning required commands 



Some of the commands have already been defined for the support of RAW
commands (to be blocked). Unlike their usage in the RAW interface, when
used through the supported interface, they will be coordinated and
marshalled along with other commands being issued by userspace and the
driver itself. That coordination will be added later.

The list of commands was determined based on the learnings from
libnvdimm and this list is provided directly from Dan.

Recommended-by: default avatarDan Williams <dan.j.williams@intel.com>
Signed-off-by: default avatarBen Widawsky <ben.widawsky@intel.com>
Reviewed-by: default avatarJonathan Cameron <Jonathan.Cameron@huawei.com>
Link: https://lore.kernel.org/r/20210413140907.534404-1-ben.widawsky@intel.com


Signed-off-by: default avatarDan Williams <dan.j.williams@intel.com>
parent ba268647

drivers/cxl/pci.c

+19 −0
Original line number Diff line number Diff line
@@ -51,7 +51,14 @@ enum opcode { 
	CXL_MBOX_OP_GET_LSA		= 0x4102,

	CXL_MBOX_OP_SET_LSA		= 0x4103,

	CXL_MBOX_OP_GET_HEALTH_INFO	= 0x4200,

	CXL_MBOX_OP_GET_ALERT_CONFIG	= 0x4201,

	CXL_MBOX_OP_SET_ALERT_CONFIG	= 0x4202,

	CXL_MBOX_OP_GET_SHUTDOWN_STATE	= 0x4203,

	CXL_MBOX_OP_SET_SHUTDOWN_STATE	= 0x4204,

	CXL_MBOX_OP_GET_POISON		= 0x4300,

	CXL_MBOX_OP_INJECT_POISON	= 0x4301,

	CXL_MBOX_OP_CLEAR_POISON	= 0x4302,

	CXL_MBOX_OP_GET_SCAN_MEDIA_CAPS	= 0x4303,

	CXL_MBOX_OP_SCAN_MEDIA		= 0x4304,

	CXL_MBOX_OP_GET_SCAN_MEDIA	= 0x4305,

	CXL_MBOX_OP_MAX			= 0x10000
@@ -159,6 +166,18 @@ static struct cxl_mem_command mem_commands[CXL_MEM_COMMAND_ID_MAX] = { 
	CXL_CMD(GET_LSA, 0x8, ~0, 0),

	CXL_CMD(GET_HEALTH_INFO, 0, 0x12, 0),

	CXL_CMD(GET_LOG, 0x18, ~0, CXL_CMD_FLAG_FORCE_ENABLE),

	CXL_CMD(SET_PARTITION_INFO, 0x0a, 0, 0),

	CXL_CMD(SET_LSA, ~0, 0, 0),

	CXL_CMD(GET_ALERT_CONFIG, 0, 0x10, 0),

	CXL_CMD(SET_ALERT_CONFIG, 0xc, 0, 0),

	CXL_CMD(GET_SHUTDOWN_STATE, 0, 0x1, 0),

	CXL_CMD(SET_SHUTDOWN_STATE, 0x1, 0, 0),

	CXL_CMD(GET_POISON, 0x10, ~0, 0),

	CXL_CMD(INJECT_POISON, 0x8, 0, 0),

	CXL_CMD(CLEAR_POISON, 0x48, 0, 0),

	CXL_CMD(GET_SCAN_MEDIA_CAPS, 0x10, 0x4, 0),

	CXL_CMD(SCAN_MEDIA, 0x11, 0, 0),

	CXL_CMD(GET_SCAN_MEDIA, 0, ~0, 0),

};



/*

include/uapi/linux/cxl_mem.h

+12 −0
Original line number Diff line number Diff line
@@ -29,6 +29,18 @@ 
	___C(GET_LSA, "Get Label Storage Area"),                          \

	___C(GET_HEALTH_INFO, "Get Health Info"),                         \

	___C(GET_LOG, "Get Log"),                                         \

	___C(SET_PARTITION_INFO, "Set Partition Information"),            \

	___C(SET_LSA, "Set Label Storage Area"),                          \

	___C(GET_ALERT_CONFIG, "Get Alert Configuration"),                \

	___C(SET_ALERT_CONFIG, "Set Alert Configuration"),                \

	___C(GET_SHUTDOWN_STATE, "Get Shutdown State"),                   \

	___C(SET_SHUTDOWN_STATE, "Set Shutdown State"),                   \

	___C(GET_POISON, "Get Poison List"),                              \

	___C(INJECT_POISON, "Inject Poison"),                             \

	___C(CLEAR_POISON, "Clear Poison"),                               \

	___C(GET_SCAN_MEDIA_CAPS, "Get Scan Media Capabilities"),         \

	___C(SCAN_MEDIA, "Scan Media"),                                   \

	___C(GET_SCAN_MEDIA, "Get Scan Media Results"),                   \

	___C(MAX, "invalid / last command")



#define ___C(a, b) CXL_MEM_COMMAND_ID_##a