diff options
Diffstat (limited to 'sys/include/dev')
| -rw-r--r-- | sys/include/dev/ic/nvmevar.h | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/sys/include/dev/ic/nvmevar.h b/sys/include/dev/ic/nvmevar.h index 52fa5ad..4a40071 100644 --- a/sys/include/dev/ic/nvmevar.h +++ b/sys/include/dev/ic/nvmevar.h @@ -41,6 +41,23 @@ #define NVME_OP_WRITE 0x01 #define NVME_OP_READ 0x02 +/* Controller Capabilities */ +#define CAP_MPSMIN(caps) ((caps >> 48) & 0xF) +#define CAP_MPSMAX(caps) ((caps >> 52) & 0xF) +#define CAP_TIMEOUT(caps) ((caps >> 24) & 0xFF) +#define CAP_STRIDE(caps) ((caps >> 32) & 0xF) +#define CAP_MQES(caps) (caps & 0xFFFF) +#define CAP_CSS(caps) (caps & 0xFF) + +/* Controller Configuration */ +#define CONFIG_EN __BIT(0) +#define CONFIG_CSS_SHIFT 4 +#define CONFIG_IOSQES_SHIFT 16 +#define CONFIG_IOCQES_SHIFT 20 + +#define COMMAND_SIZE 64 /* In bytes (defined by spec) */ +#define STATUS_READY(status) (status & 1) + struct nvme_common_cmd { uint8_t opcode; uint8_t flags; |