[PATCH 2/5] nvme: Add ANA base definitions

[Schremmer, Steven]

> @@ -242,7 +242,11 @@ struct nvme_id_ctrl {
>  	__le32			sanicap;
>  	__le32			hmminds;
>  	__le16			hmmaxd;
> -	__u8			rsvd338[174];
reserved bytes 338 to 341

> +	__u8			anatt;
> +	__u8			anacap;
> +	__le32			anagrpmax;
> +	__le32			nanagrpid;
> +	__u8			rsvd338[164];
rsvd352[160]

>  	__u8			sqes;
>  	__u8			cqes;
>  	__le16			maxcmd;
> @@ -258,7 +262,8 @@ struct nvme_id_ctrl {
>  	__le16			acwu;
>  	__u8			rsvd534[2];
>  	__le32			sgls;
> -	__u8			rsvd540[228];
> +	__le32			mnn;
mnan

> +	__u8			rsvd540[224];
rsvd544[224]

>  	char			subnqn[256];
>  	__u8			rsvd1024[768];
>  	__le32			ioccsz;
> @@ -312,7 +317,8 @@ struct nvme_id_ns {
>  	__le16			nabspf;
>  	__le16			noiob;
>  	__u8			nvmcap[16];
> -	__u8			rsvd64[40];
> +	__u8			rsvd64[36];
rsvd64[28]

> +	__le32			anagrpid;
rsvd96[8]

>  	__u8			nguid[16];
>  	__u8			eui64[8];
>  	struct nvme_lbaf	lbaf[16];
> @@ -440,6 +446,7 @@ enum {
>  	NVME_AER_VS			= 7,
>  	NVME_AER_NOTICE_NS_CHANGED	= 0x0002,
>  	NVME_AER_NOTICE_FW_ACT_STARTING = 0x0102,
> +	NVME_AER_NOTICE_ANA_CHANGE	= 0x0302,
>  };
> 
>  struct nvme_lba_range_type {
> @@ -748,11 +755,17 @@ enum {
>  	NVME_LOG_SMART		= 0x02,
>  	NVME_LOG_FW_SLOT	= 0x03,
>  	NVME_LOG_CMD_EFFECTS	= 0x05,
> +	NVME_LOG_ANA		= 0x0c,
>  	NVME_LOG_DISC		= 0x70,
>  	NVME_LOG_RESERVATION	= 0x80,
>  	NVME_FWACT_REPL		= (0 << 3),
>  	NVME_FWACT_REPL_ACTV	= (1 << 3),
>  	NVME_FWACT_ACTV		= (2 << 3),
> +	NVME_ANA_STATE_OPTIMIZED = 0x01,
> +	NVME_ANA_STATE_NONOPTIMIZED = 0x02,
> +	NVME_ANA_STATE_INACCESSIBLE = 0x03,
> +	NVME_ANA_STATE_PERSISTENT_LOSS = 0x04,
> +	NVME_ANA_STATE_CHANGE_STATE = 0x05,
_CHANGE_STATE should have value of 0x0F

>  };
> 
>  struct nvme_identify {
> @@ -917,6 +930,23 @@ struct nvmf_common_command {
>  	__u8	ts[24];
>  };
> 
> +/* Asymmetric Namespace Access log page entry */
> +struct nvmf_ana_group_descriptor {
> +	__le32 groupid;
> +	__le32 nsid_num;
> +	__le64 chgcnt;
> +	__u8 ana_state;
> +	__u8 resv1[7];
> +	__le32 nsid[0];
> +};
> +
> +struct nvmf_ana_rsp_page_header {
> +	__le64 chgcnt;
> +	__le16 grpid_num;
grpdesc_num?

> +	__le16 resv[3];
> +	struct nvmf_ana_group_descriptor desc[0];
> +};
> +
>  /*
>   * The legal cntlid range a NVMe Target will provide.
>   * Note that cntlid of value 0 is considered illegal in the fabrics world.
> @@ -1135,6 +1165,8 @@ enum {
>  	NVME_SC_NS_NOT_ATTACHED		= 0x11a,
>  	NVME_SC_THIN_PROV_NOT_SUPP	= 0x11b,
>  	NVME_SC_CTRL_LIST_INVALID	= 0x11c,
> +	NVME_SC_GRP_ID_INVALID		= 0x123,
> +	NVME_SC_ANA_ATTACH_FAILED	= 0x124,
I think GRP_ID_INVALID should be 0x124 and _ANA_ATTACH_FAILED is 0x125.

> 
>  	/*
>  	 * I/O Command Set Specific - NVM commands:
> @@ -1168,6 +1200,15 @@ enum {
>  	NVME_SC_ACCESS_DENIED		= 0x286,
>  	NVME_SC_UNWRITTEN_BLOCK		= 0x287,
> 
> +	/* Path-related Errors */
> +	NVME_SC_INTERNAL_PATH_ERROR	= 0x300,
> +	NVME_SC_ANA_PERSISTENT_LOSS	= 0x301,
> +	NVME_SC_ANA_INACCESSIBLE	= 0x302,
> +	NVME_SC_ANA_TRANSITION		= 0x303,
> +	NVME_SC_CTRL_PATHING_ERROR	= 0x360,
> +	NVME_SC_HOST_PATHING_ERROR	= 0x370,
> +	NVME_SC_HOST_ABORTED		= 0x371,
> +
>  	NVME_SC_DNR			= 0x4000,
>  };
> 
> --
> 2.12.3