Merge tag 'for-5.5/drivers-20191121' of git://git.kernel.dk/linux-block

Pull block driver updates from Jens Axboe:
 "Here are the main block driver updates for 5.5. Nothing major in here,
  mostly just fixes. This contains:

   - a set of bcache changes via Coly

   - MD changes from Song

   - loop unmap write-zeroes fix (Darrick)

   - spelling fixes (Geert)

   - zoned additions cleanups to null_blk/dm (Ajay)

   - allow null_blk online submit queue changes (Bart)

   - NVMe changes via Keith, nothing major here either"

* tag 'for-5.5/drivers-20191121' of git://git.kernel.dk/linux-block: (56 commits)
  Revert "bcache: fix fifo index swapping condition in journal_pin_cmp()"
  drivers/md/raid5-ppl.c: use the new spelling of RWH_WRITE_LIFE_NOT_SET
  drivers/md/raid5.c: use the new spelling of RWH_WRITE_LIFE_NOT_SET
  bcache: don't export symbols
  bcache: remove the extra cflags for request.o
  bcache: at least try to shrink 1 node in bch_mca_scan()
  bcache: add idle_max_writeback_rate sysfs interface
  bcache: add code comments in bch_btree_leaf_dirty()
  bcache: fix deadlock in bcache_allocator
  bcache: add code comment bch_keylist_pop() and bch_keylist_pop_front()
  bcache: deleted code comments for dead code in bch_data_insert_keys()
  bcache: add more accurate error messages in read_super()
  bcache: fix static checker warning in bcache_device_free()
  bcache: fix a lost wake-up problem caused by mca_cannibalize_lock
  bcache: fix fifo index swapping condition in journal_pin_cmp()
  md/raid10: prevent access of uninitialized resync_pages offset
  md: avoid invalid memory access for array sb->dev_roles
  md/raid1: avoid soft lockup under high load
  null_blk: add zone open, close, and finish support
  dm: add zone open, close and finish support
  ...

2 files changed, 188 insertions, 48 deletions

diff --git a/include/linux/nvme-fc.h b/include/linux/nvme-fc.h
index 067c9fea64fe..e8c30b39bb27 100644
--- a/include/linux/nvme-fc.h
+++ b/include/linux/nvme-fc.h
@@ -4,33 +4,60 @@
  */
 
 /*
- * This file contains definitions relative to FC-NVME r1.14 (16-020vB).
- * The fcnvme_lsdesc_cr_assoc_cmd struct reflects expected r1.16 content.
+ * This file contains definitions relative to FC-NVME-2 r1.06
+ * (T11-2019-00210-v001).
  */
 
 #ifndef _NVME_FC_H
 #define _NVME_FC_H 1
 
+#include <uapi/scsi/fc/fc_fs.h>
 
-#define NVME_CMD_SCSI_ID		0xFD
+#define NVME_CMD_FORMAT_ID		0xFD
 #define NVME_CMD_FC_ID			FC_TYPE_NVME
 
 /* FC-NVME Cmd IU Flags */
-#define FCNVME_CMD_FLAGS_DIRMASK	0x03
-#define FCNVME_CMD_FLAGS_WRITE		0x01
-#define FCNVME_CMD_FLAGS_READ		0x02
+enum {
+	FCNVME_CMD_FLAGS_DIRMASK	= 0x03,
+	FCNVME_CMD_FLAGS_WRITE		= (1 << 0),
+	FCNVME_CMD_FLAGS_READ		= (1 << 1),
+
+	FCNVME_CMD_FLAGS_PICWP		= (1 << 2),
+};
+
+enum {
+	FCNVME_CMD_CAT_MASK		= 0x0F,
+	FCNVME_CMD_CAT_ADMINQ		= 0x01,
+	FCNVME_CMD_CAT_CSSMASK		= 0x07,
+	FCNVME_CMD_CAT_CSSFLAG		= 0x08,
+};
+
+static inline __u8 fccmnd_set_cat_admin(__u8 rsv_cat)
+{
+	return (rsv_cat & ~FCNVME_CMD_CAT_MASK) | FCNVME_CMD_CAT_ADMINQ;
+}
+
+static inline __u8 fccmnd_set_cat_css(__u8 rsv_cat, __u8 css)
+{
+	return (rsv_cat & ~FCNVME_CMD_CAT_MASK) | FCNVME_CMD_CAT_CSSFLAG |
+		(css & FCNVME_CMD_CAT_CSSMASK);
+}
 
 struct nvme_fc_cmd_iu {
-	__u8			scsi_id;
+	__u8			format_id;
 	__u8			fc_id;
 	__be16			iu_len;
-	__u8			rsvd4[3];
+	__u8			rsvd4[2];
+	__u8			rsv_cat;
 	__u8			flags;
 	__be64			connection_id;
 	__be32			csn;
 	__be32			data_len;
 	struct nvme_command	sqe;
-	__be32			rsvd88[2];
+	__u8			dps;
+	__u8			lbads;
+	__be16			ms;
+	__be32			rsvd92;
 };
 
 #define NVME_FC_SIZEOF_ZEROS_RSP	12
@@ -38,11 +65,12 @@ struct nvme_fc_cmd_iu {
 enum {
 	FCNVME_SC_SUCCESS		= 0,
 	FCNVME_SC_INVALID_FIELD		= 1,
-	FCNVME_SC_INVALID_CONNID	= 2,
+	/* reserved			  2 */
+	FCNVME_SC_ILL_CONN_PARAMS	= 3,
 };
 
 struct nvme_fc_ersp_iu {
-	__u8			status_code;
+	__u8			ersp_result;
 	__u8			rsvd1;
 	__be16			iu_len;
 	__be32			rsn;
@@ -53,14 +81,44 @@ struct nvme_fc_ersp_iu {
 };
 
 
-/* FC-NVME Link Services */
+#define FCNVME_NVME_SR_OPCODE	0x01
+
+struct nvme_fc_nvme_sr_iu {
+	__u8			fc_id;
+	__u8			opcode;
+	__u8			rsvd2;
+	__u8			retry_rctl;
+	__be32			rsvd4;
+};
+
+
+enum {
+	FCNVME_SRSTAT_ACC		= 0x0,
+	FCNVME_SRSTAT_INV_FCID		= 0x1,
+	/* reserved			  0x2 */
+	FCNVME_SRSTAT_LOGICAL_ERR	= 0x3,
+	FCNVME_SRSTAT_INV_QUALIF	= 0x4,
+	FCNVME_SRSTAT_UNABL2PERFORM	= 0x9,
+};
+
+struct nvme_fc_nvme_sr_rsp_iu {
+	__u8			fc_id;
+	__u8			opcode;
+	__u8			rsvd2;
+	__u8			status;
+	__be32			rsvd4;
+};
+
+
+/* FC-NVME Link Services - LS cmd values (w0 bits 31:24) */
 enum {
 	FCNVME_LS_RSVD			= 0,
 	FCNVME_LS_RJT			= 1,
 	FCNVME_LS_ACC			= 2,
-	FCNVME_LS_CREATE_ASSOCIATION	= 3,
-	FCNVME_LS_CREATE_CONNECTION	= 4,
-	FCNVME_LS_DISCONNECT		= 5,
+	FCNVME_LS_CREATE_ASSOCIATION	= 3,	/* Create Association */
+	FCNVME_LS_CREATE_CONNECTION	= 4,	/* Create I/O Connection */
+	FCNVME_LS_DISCONNECT_ASSOC	= 5,	/* Disconnect Association */
+	FCNVME_LS_DISCONNECT_CONN	= 6,	/* Disconnect Connection */
 };
 
 /* FC-NVME Link Service Descriptors */
@@ -117,14 +175,17 @@ enum fcnvme_ls_rjt_reason {
 	FCNVME_RJT_RC_UNSUP		= 0x0b,
 	/* command not supported */
 
-	FCNVME_RJT_RC_INPROG		= 0x0e,
-	/* command already in progress */
-
 	FCNVME_RJT_RC_INV_ASSOC		= 0x40,
-	/* Invalid Association ID*/
+	/* Invalid Association ID */
 
 	FCNVME_RJT_RC_INV_CONN		= 0x41,
-	/* Invalid Connection ID*/
+	/* Invalid Connection ID */
+
+	FCNVME_RJT_RC_INV_PARAM		= 0x42,
+	/* Invalid Parameters */
+
+	FCNVME_RJT_RC_INSUF_RES		= 0x43,
+	/* Insufficient Resources */
 
 	FCNVME_RJT_RC_VENDOR		= 0xff,
 	/* vendor specific error */
@@ -138,14 +199,32 @@ enum fcnvme_ls_rjt_explan {
 	FCNVME_RJT_EXP_OXID_RXID	= 0x17,
 	/* invalid OX_ID-RX_ID combination */
 
-	FCNVME_RJT_EXP_INSUF_RES	= 0x29,
-	/* insufficient resources */
-
 	FCNVME_RJT_EXP_UNAB_DATA	= 0x2a,
 	/* unable to supply requested data */
 
 	FCNVME_RJT_EXP_INV_LEN		= 0x2d,
 	/* Invalid payload length */
+
+	FCNVME_RJT_EXP_INV_ERSP_RAT	= 0x40,
+	/* Invalid NVMe_ERSP Ratio */
+
+	FCNVME_RJT_EXP_INV_CTLR_ID	= 0x41,
+	/* Invalid Controller ID */
+
+	FCNVME_RJT_EXP_INV_QUEUE_ID	= 0x42,
+	/* Invalid Queue ID */
+
+	FCNVME_RJT_EXP_INV_SQSIZE	= 0x43,
+	/* Invalid Submission Queue Size */
+
+	FCNVME_RJT_EXP_INV_HOSTID	= 0x44,
+	/* Invalid HOST ID */
+
+	FCNVME_RJT_EXP_INV_HOSTNQN	= 0x45,
+	/* Invalid HOSTNQN */
+
+	FCNVME_RJT_EXP_INV_SUBNQN	= 0x46,
+	/* Invalid SUBNQN */
 };
 
 /* FCNVME_LSDESC_RJT */
@@ -209,21 +288,11 @@ struct fcnvme_lsdesc_cr_conn_cmd {
 	__be32  rsvd52;
 };
 
-/* Disconnect Scope Values */
-enum {
-	FCNVME_DISCONN_ASSOCIATION	= 0,
-	FCNVME_DISCONN_CONNECTION	= 1,
-};
-
 /* FCNVME_LSDESC_DISCONN_CMD */
 struct fcnvme_lsdesc_disconn_cmd {
 	__be32	desc_tag;		/* FCNVME_LSDESC_xxx */
 	__be32	desc_len;
-	u8	rsvd8[3];
-	/* note: scope is really a 1 bit field */
-	u8	scope;			/* FCNVME_DISCONN_xxx */
-	__be32	rsvd12;
-	__be64	id;
+	__be32	rsvd8[4];
 };
 
 /* FCNVME_LSDESC_CONN_ID */
@@ -242,9 +311,14 @@ struct fcnvme_lsdesc_assoc_id {
 
 /* r_ctl values */
 enum {
-	FCNVME_RS_RCTL_DATA		= 1,
-	FCNVME_RS_RCTL_XFER_RDY		= 5,
-	FCNVME_RS_RCTL_RSP		= 8,
+	FCNVME_RS_RCTL_CMND		= 0x6,
+	FCNVME_RS_RCTL_DATA		= 0x1,
+	FCNVME_RS_RCTL_CONF		= 0x3,
+	FCNVME_RS_RCTL_SR		= 0x9,
+	FCNVME_RS_RCTL_XFER_RDY		= 0x5,
+	FCNVME_RS_RCTL_RSP		= 0x7,
+	FCNVME_RS_RCTL_ERSP		= 0x8,
+	FCNVME_RS_RCTL_SR_RSP		= 0xA,
 };
 
 
@@ -264,7 +338,10 @@ struct fcnvme_ls_acc_hdr {
 	struct fcnvme_ls_rqst_w0		w0;
 	__be32					desc_list_len;
 	struct fcnvme_lsdesc_rqst		rqst;
-	/* Followed by cmd-specific ACC descriptors, see next definitions */
+	/*
+	 * Followed by cmd-specific ACCEPT descriptors, see xxx_acc
+	 * definitions below
+	 */
 };
 
 /* FCNVME_LS_CREATE_ASSOCIATION */
@@ -302,25 +379,39 @@ struct fcnvme_ls_cr_conn_acc {
 	struct fcnvme_lsdesc_conn_id		connectid;
 };
 
-/* FCNVME_LS_DISCONNECT */
-struct fcnvme_ls_disconnect_rqst {
+/* FCNVME_LS_DISCONNECT_ASSOC */
+struct fcnvme_ls_disconnect_assoc_rqst {
 	struct fcnvme_ls_rqst_w0		w0;
 	__be32					desc_list_len;
 	struct fcnvme_lsdesc_assoc_id		associd;
 	struct fcnvme_lsdesc_disconn_cmd	discon_cmd;
 };
 
-struct fcnvme_ls_disconnect_acc {
+struct fcnvme_ls_disconnect_assoc_acc {
+	struct fcnvme_ls_acc_hdr		hdr;
+};
+
+
+/* FCNVME_LS_DISCONNECT_CONN */
+struct fcnvme_ls_disconnect_conn_rqst {
+	struct fcnvme_ls_rqst_w0		w0;
+	__be32					desc_list_len;
+	struct fcnvme_lsdesc_assoc_id		associd;
+	struct fcnvme_lsdesc_disconn_cmd	connectid;
+};
+
+struct fcnvme_ls_disconnect_conn_acc {
 	struct fcnvme_ls_acc_hdr		hdr;
 };
 
 
 /*
- * Yet to be defined in FC-NVME:
+ * Default R_A_TOV is pulled in from fc_fs.h but needs conversion
+ * from ms to seconds for our use.
  */
-#define NVME_FC_CONNECT_TIMEOUT_SEC	2		/* 2 seconds */
-#define NVME_FC_LS_TIMEOUT_SEC		2		/* 2 seconds */
-#define NVME_FC_TGTOP_TIMEOUT_SEC	2		/* 2 seconds */
+#define FC_TWO_TIMES_R_A_TOV		(2 * (FC_DEF_R_A_TOV / 1000))
+#define NVME_FC_LS_TIMEOUT_SEC		FC_TWO_TIMES_R_A_TOV
+#define NVME_FC_TGTOP_TIMEOUT_SEC	FC_TWO_TIMES_R_A_TOV
 
 /*
  * TRADDR string must be of form "nn-<16hexdigits>:pn-<16hexdigits>"
@@ -328,6 +419,7 @@ struct fcnvme_ls_disconnect_acc {
  * infront of the <16hexdigits>.  Without is considered the "min" string
  * and with is considered the "max" string. The hexdigits may be upper
  * or lower case.
+ * Note: FC-NVME-2 standard requires a "0x" prefix.
  */
 #define NVME_FC_TRADDR_NNLEN		3	/* "?n-" */
 #define NVME_FC_TRADDR_OXNNLEN		5	/* "?n-0x" */
diff --git a/include/linux/nvme.h b/include/linux/nvme.h
index f61d6906e59d..3eca4f7d8510 100644
--- a/include/linux/nvme.h
+++ b/include/linux/nvme.h
@@ -107,8 +107,22 @@ enum {
 	NVME_REG_AQA	= 0x0024,	/* Admin Queue Attributes */
 	NVME_REG_ASQ	= 0x0028,	/* Admin SQ Base Address */
 	NVME_REG_ACQ	= 0x0030,	/* Admin CQ Base Address */
-	NVME_REG_CMBLOC = 0x0038,	/* Controller Memory Buffer Location */
+	NVME_REG_CMBLOC	= 0x0038,	/* Controller Memory Buffer Location */
 	NVME_REG_CMBSZ	= 0x003c,	/* Controller Memory Buffer Size */
+	NVME_REG_BPINFO	= 0x0040,	/* Boot Partition Information */
+	NVME_REG_BPRSEL	= 0x0044,	/* Boot Partition Read Select */
+	NVME_REG_BPMBL	= 0x0048,	/* Boot Partition Memory Buffer
+					 * Location
+					 */
+	NVME_REG_PMRCAP	= 0x0e00,	/* Persistent Memory Capabilities */
+	NVME_REG_PMRCTL	= 0x0e04,	/* Persistent Memory Region Control */
+	NVME_REG_PMRSTS	= 0x0e08,	/* Persistent Memory Region Status */
+	NVME_REG_PMREBS	= 0x0e0c,	/* Persistent Memory Region Elasticity
+					 * Buffer Size
+					 */
+	NVME_REG_PMRSWTP = 0x0e10,	/* Persistent Memory Region Sustained
+					 * Write Throughput
+					 */
 	NVME_REG_DBS	= 0x1000,	/* SQ 0 Tail Doorbell */
 };
 
@@ -295,6 +309,14 @@ enum {
 	NVME_CTRL_OACS_DIRECTIVES		= 1 << 5,
 	NVME_CTRL_OACS_DBBUF_SUPP		= 1 << 8,
 	NVME_CTRL_LPA_CMD_EFFECTS_LOG		= 1 << 1,
+	NVME_CTRL_CTRATT_128_ID			= 1 << 0,
+	NVME_CTRL_CTRATT_NON_OP_PSP		= 1 << 1,
+	NVME_CTRL_CTRATT_NVM_SETS		= 1 << 2,
+	NVME_CTRL_CTRATT_READ_RECV_LVLS		= 1 << 3,
+	NVME_CTRL_CTRATT_ENDURANCE_GROUPS	= 1 << 4,
+	NVME_CTRL_CTRATT_PREDICTABLE_LAT	= 1 << 5,
+	NVME_CTRL_CTRATT_NAMESPACE_GRANULARITY	= 1 << 7,
+	NVME_CTRL_CTRATT_UUID_LIST		= 1 << 9,
 };
 
 struct nvme_lbaf {
@@ -352,6 +374,9 @@ enum {
 	NVME_ID_CNS_NS_PRESENT		= 0x11,
 	NVME_ID_CNS_CTRL_NS_LIST	= 0x12,
 	NVME_ID_CNS_CTRL_LIST		= 0x13,
+	NVME_ID_CNS_SCNDRY_CTRL_LIST	= 0x15,
+	NVME_ID_CNS_NS_GRANULARITY	= 0x16,
+	NVME_ID_CNS_UUID_LIST		= 0x17,
 };
 
 enum {
@@ -409,7 +434,8 @@ struct nvme_smart_log {
 	__u8			avail_spare;
 	__u8			spare_thresh;
 	__u8			percent_used;
-	__u8			rsvd6[26];
+	__u8			endu_grp_crit_warn_sumry;
+	__u8			rsvd7[25];
 	__u8			data_units_read[16];
 	__u8			data_units_written[16];
 	__u8			host_reads[16];
@@ -423,7 +449,11 @@ struct nvme_smart_log {
 	__le32			warning_temp_time;
 	__le32			critical_comp_time;
 	__le16			temp_sensor[8];
-	__u8			rsvd216[296];
+	__le32			thm_temp1_trans_count;
+	__le32			thm_temp2_trans_count;
+	__le32			thm_temp1_total_time;
+	__le32			thm_temp2_total_time;
+	__u8			rsvd232[280];
 };
 
 struct nvme_fw_slot_info_log {
@@ -440,6 +470,7 @@ enum {
 	NVME_CMD_EFFECTS_NIC		= 1 << 3,
 	NVME_CMD_EFFECTS_CCC		= 1 << 4,
 	NVME_CMD_EFFECTS_CSE_MASK	= 3 << 16,
+	NVME_CMD_EFFECTS_UUID_SEL	= 1 << 19,
 };
 
 struct nvme_effects_log {
@@ -563,6 +594,7 @@ enum nvme_opcode {
 	nvme_cmd_compare	= 0x05,
 	nvme_cmd_write_zeroes	= 0x08,
 	nvme_cmd_dsm		= 0x09,
+	nvme_cmd_verify		= 0x0c,
 	nvme_cmd_resv_register	= 0x0d,
 	nvme_cmd_resv_report	= 0x0e,
 	nvme_cmd_resv_acquire	= 0x11,
@@ -806,10 +838,14 @@ enum nvme_admin_opcode {
 	nvme_admin_ns_mgmt		= 0x0d,
 	nvme_admin_activate_fw		= 0x10,
 	nvme_admin_download_fw		= 0x11,
+	nvme_admin_dev_self_test	= 0x14,
 	nvme_admin_ns_attach		= 0x15,
 	nvme_admin_keep_alive		= 0x18,
 	nvme_admin_directive_send	= 0x19,
 	nvme_admin_directive_recv	= 0x1a,
+	nvme_admin_virtual_mgmt		= 0x1c,
+	nvme_admin_nvme_mi_send		= 0x1d,
+	nvme_admin_nvme_mi_recv		= 0x1e,
 	nvme_admin_dbbuf		= 0x7C,
 	nvme_admin_format_nvm		= 0x80,
 	nvme_admin_security_send	= 0x81,
@@ -873,6 +909,7 @@ enum {
 	NVME_FEAT_PLM_CONFIG	= 0x13,
 	NVME_FEAT_PLM_WINDOW	= 0x14,
 	NVME_FEAT_HOST_BEHAVIOR	= 0x16,
+	NVME_FEAT_SANITIZE	= 0x17,
 	NVME_FEAT_SW_PROGRESS	= 0x80,
 	NVME_FEAT_HOST_ID	= 0x81,
 	NVME_FEAT_RESV_MASK	= 0x82,
@@ -883,6 +920,10 @@ enum {
 	NVME_LOG_FW_SLOT	= 0x03,
 	NVME_LOG_CHANGED_NS	= 0x04,
 	NVME_LOG_CMD_EFFECTS	= 0x05,
+	NVME_LOG_DEVICE_SELF_TEST = 0x06,
+	NVME_LOG_TELEMETRY_HOST = 0x07,
+	NVME_LOG_TELEMETRY_CTRL = 0x08,
+	NVME_LOG_ENDURANCE_GROUP = 0x09,
 	NVME_LOG_ANA		= 0x0c,
 	NVME_LOG_DISC		= 0x70,
 	NVME_LOG_RESERVATION	= 0x80,
@@ -1290,7 +1331,11 @@ enum {
 	NVME_SC_SGL_INVALID_OFFSET	= 0x16,
 	NVME_SC_SGL_INVALID_SUBTYPE	= 0x17,
 
+	NVME_SC_SANITIZE_FAILED		= 0x1C,
+	NVME_SC_SANITIZE_IN_PROGRESS	= 0x1D,
+
 	NVME_SC_NS_WRITE_PROTECTED	= 0x20,
+	NVME_SC_CMD_INTERRUPTED		= 0x21,
 
 	NVME_SC_LBA_RANGE		= 0x80,
 	NVME_SC_CAP_EXCEEDED		= 0x81,
@@ -1328,6 +1373,8 @@ enum {
 	NVME_SC_NS_NOT_ATTACHED		= 0x11a,
 	NVME_SC_THIN_PROV_NOT_SUPP	= 0x11b,
 	NVME_SC_CTRL_LIST_INVALID	= 0x11c,
+	NVME_SC_BP_WRITE_PROHIBITED	= 0x11e,
+	NVME_SC_PMR_SAN_PROHIBITED	= 0x123,
 
 	/*
 	 * I/O Command Set Specific - NVM commands:
@@ -1368,6 +1415,7 @@ enum {
 	NVME_SC_ANA_INACCESSIBLE	= 0x302,
 	NVME_SC_ANA_TRANSITION		= 0x303,
 	NVME_SC_HOST_PATH_ERROR		= 0x370,
+	NVME_SC_HOST_ABORTED_CMD	= 0x371,
 
 	NVME_SC_CRD			= 0x1800,
 	NVME_SC_DNR			= 0x4000,