diff options
Diffstat (limited to 'drivers/cxl/cxlmem.h')
| -rw-r--r-- | drivers/cxl/cxlmem.h | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/drivers/cxl/cxlmem.h b/drivers/cxl/cxlmem.h index a2845a7a69d8..78ff518012bf 100644 --- a/drivers/cxl/cxlmem.h +++ b/drivers/cxl/cxlmem.h @@ -5,6 +5,7 @@ #include <uapi/linux/cxl_mem.h> #include <linux/cdev.h> #include <linux/uuid.h> +#include <linux/rcuwait.h> #include "cxl.h" /* CXL 2.0 8.2.8.5.1.1 Memory Device Status Register */ @@ -108,6 +109,9 @@ static inline struct cxl_ep *cxl_ep_load(struct cxl_port *port, * variable sized output commands, it tells the exact number of bytes * written. * @min_out: (input) internal command output payload size validation + * @poll_count: (input) Number of timeouts to attempt. + * @poll_interval_ms: (input) Time between mailbox background command polling + * interval timeouts. * @return_code: (output) Error code returned from hardware. * * This is the primary mechanism used to send commands to the hardware. @@ -123,6 +127,8 @@ struct cxl_mbox_cmd { size_t size_in; size_t size_out; size_t min_out; + int poll_count; + int poll_interval_ms; u16 return_code; }; @@ -255,6 +261,23 @@ struct cxl_poison_state { }; /** + * struct cxl_security_state - Device security state + * + * @state: state of last security operation + * @poll: polling for sanitization is enabled, device has no mbox irq support + * @poll_tmo_secs: polling timeout + * @poll_dwork: polling work item + * @sanitize_node: sanitation sysfs file to notify + */ +struct cxl_security_state { + unsigned long state; + bool poll; + int poll_tmo_secs; + struct delayed_work poll_dwork; + struct kernfs_node *sanitize_node; +}; + +/** * struct cxl_dev_state - The driver device state * * cxl_dev_state represents the CXL driver/device state. It provides an @@ -330,7 +353,9 @@ struct cxl_dev_state { struct cxl_event_state event; struct cxl_poison_state poison; + struct cxl_security_state security; + struct rcuwait mbox_wait; int (*mbox_send)(struct cxl_dev_state *cxlds, struct cxl_mbox_cmd *cmd); }; @@ -362,6 +387,8 @@ enum cxl_opcode { CXL_MBOX_OP_GET_SCAN_MEDIA_CAPS = 0x4303, CXL_MBOX_OP_SCAN_MEDIA = 0x4304, CXL_MBOX_OP_GET_SCAN_MEDIA = 0x4305, + CXL_MBOX_OP_SANITIZE = 0x4400, + CXL_MBOX_OP_SECURE_ERASE = 0x4401, CXL_MBOX_OP_GET_SECURITY_STATE = 0x4500, CXL_MBOX_OP_SET_PASSPHRASE = 0x4501, CXL_MBOX_OP_DISABLE_PASSPHRASE = 0x4502, @@ -722,6 +749,8 @@ static inline void cxl_mem_active_dec(void) } #endif +int cxl_mem_sanitize(struct cxl_dev_state *cxlds, u16 cmd); + struct cxl_hdm { struct cxl_component_regs regs; unsigned int decoder_count; |