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-rw-r--r--include/scsi/fc/fc_ns.h11
-rw-r--r--include/scsi/fc_encode.h26
-rw-r--r--include/scsi/libfc.h74
-rw-r--r--include/scsi/libfcoe.h105
-rw-r--r--include/scsi/libiscsi.h8
-rw-r--r--include/scsi/scsi.h5
-rw-r--r--include/scsi/scsi_device.h1
-rw-r--r--include/scsi/scsi_transport_iscsi.h6
8 files changed, 218 insertions, 18 deletions
diff --git a/include/scsi/fc/fc_ns.h b/include/scsi/fc/fc_ns.h
index 185015dd116..f7751d53f1d 100644
--- a/include/scsi/fc/fc_ns.h
+++ b/include/scsi/fc/fc_ns.h
@@ -41,6 +41,7 @@ enum fc_ns_req {
FC_NS_GI_A = 0x0101, /* get identifiers - scope */
FC_NS_GPN_ID = 0x0112, /* get port name by ID */
FC_NS_GNN_ID = 0x0113, /* get node name by ID */
+ FC_NS_GSPN_ID = 0x0118, /* get symbolic port name */
FC_NS_GID_PN = 0x0121, /* get ID for port name */
FC_NS_GID_NN = 0x0131, /* get IDs for node name */
FC_NS_GID_FT = 0x0171, /* get IDs by FC4 type */
@@ -144,7 +145,7 @@ struct fc_ns_gid_pn {
};
/*
- * GID_PN response
+ * GID_PN response or GSPN_ID request
*/
struct fc_gid_pn_resp {
__u8 fp_resvd;
@@ -152,6 +153,14 @@ struct fc_gid_pn_resp {
};
/*
+ * GSPN_ID response
+ */
+struct fc_gspn_resp {
+ __u8 fp_name_len;
+ char fp_name[];
+};
+
+/*
* RFT_ID request - register FC-4 types for ID.
*/
struct fc_ns_rft_id {
diff --git a/include/scsi/fc_encode.h b/include/scsi/fc_encode.h
index 6d293c846a4..be418d8448a 100644
--- a/include/scsi/fc_encode.h
+++ b/include/scsi/fc_encode.h
@@ -46,16 +46,11 @@ struct fc_ct_req {
} payload;
};
-/**
- * fill FC header fields in specified fc_frame
- */
-static inline void fc_fill_fc_hdr(struct fc_frame *fp, enum fc_rctl r_ctl,
- u32 did, u32 sid, enum fc_fh_type type,
- u32 f_ctl, u32 parm_offset)
+static inline void __fc_fill_fc_hdr(struct fc_frame_header *fh,
+ enum fc_rctl r_ctl,
+ u32 did, u32 sid, enum fc_fh_type type,
+ u32 f_ctl, u32 parm_offset)
{
- struct fc_frame_header *fh;
-
- fh = fc_frame_header_get(fp);
WARN_ON(r_ctl == 0);
fh->fh_r_ctl = r_ctl;
hton24(fh->fh_d_id, did);
@@ -68,6 +63,19 @@ static inline void fc_fill_fc_hdr(struct fc_frame *fp, enum fc_rctl r_ctl,
}
/**
+ * fill FC header fields in specified fc_frame
+ */
+static inline void fc_fill_fc_hdr(struct fc_frame *fp, enum fc_rctl r_ctl,
+ u32 did, u32 sid, enum fc_fh_type type,
+ u32 f_ctl, u32 parm_offset)
+{
+ struct fc_frame_header *fh;
+
+ fh = fc_frame_header_get(fp);
+ __fc_fill_fc_hdr(fh, r_ctl, did, sid, type, f_ctl, parm_offset);
+}
+
+/**
* fc_adisc_fill() - Fill in adisc request frame
* @lport: local port.
* @fp: fc frame where payload will be placed.
diff --git a/include/scsi/libfc.h b/include/scsi/libfc.h
index f53c8e31d5f..24193c1b0da 100644
--- a/include/scsi/libfc.h
+++ b/include/scsi/libfc.h
@@ -35,6 +35,8 @@
#include <scsi/fc_frame.h>
+#define FC_FC4_PROV_SIZE (FC_TYPE_FCP + 1) /* size of tables */
+
/*
* libfc error codes
*/
@@ -156,6 +158,7 @@ struct fc_rport_libfc_priv {
#define FC_RP_FLAGS_REC_SUPPORTED (1 << 0)
#define FC_RP_FLAGS_RETRY (1 << 1)
#define FC_RP_STARTED (1 << 2)
+ #define FC_RP_FLAGS_CONF_REQ (1 << 3)
unsigned int e_d_tov;
unsigned int r_a_tov;
};
@@ -179,6 +182,7 @@ struct fc_rport_libfc_priv {
* @rp_mutex: The mutex that protects the remote port
* @retry_work: Handle for retries
* @event_callback: Callback when READY, FAILED or LOGO states complete
+ * @prli_count: Count of open PRLI sessions in providers
* @rcu: Structure used for freeing in an RCU-safe manner
*/
struct fc_rport_priv {
@@ -202,7 +206,13 @@ struct fc_rport_priv {
struct list_head peers;
struct work_struct event_work;
u32 supported_classes;
+ u16 prli_count;
struct rcu_head rcu;
+ u16 sp_features;
+ u8 spp_type;
+ void (*lld_event_callback)(struct fc_lport *,
+ struct fc_rport_priv *,
+ enum fc_rport_event);
};
/**
@@ -551,6 +561,16 @@ struct libfc_function_template {
struct fc_seq *(*seq_start_next)(struct fc_seq *);
/*
+ * Set a response handler for the exchange of the sequence.
+ *
+ * STATUS: OPTIONAL
+ */
+ void (*seq_set_resp)(struct fc_seq *sp,
+ void (*resp)(struct fc_seq *, struct fc_frame *,
+ void *),
+ void *arg);
+
+ /*
* Assign a sequence for an incoming request frame.
*
* STATUS: OPTIONAL
@@ -558,6 +578,13 @@ struct libfc_function_template {
struct fc_seq *(*seq_assign)(struct fc_lport *, struct fc_frame *);
/*
+ * Release the reference on the sequence returned by seq_assign().
+ *
+ * STATUS: OPTIONAL
+ */
+ void (*seq_release)(struct fc_seq *);
+
+ /*
* Reset an exchange manager, completing all sequences and exchanges.
* If s_id is non-zero, reset only exchanges originating from that FID.
* If d_id is non-zero, reset only exchanges sending to that FID.
@@ -656,6 +683,15 @@ struct libfc_function_template {
void (*rport_destroy)(struct kref *);
/*
+ * Callback routine after the remote port is logged in
+ *
+ * STATUS: OPTIONAL
+ */
+ void (*rport_event_callback)(struct fc_lport *,
+ struct fc_rport_priv *,
+ enum fc_rport_event);
+
+ /*
* Send a fcp cmd from fsp pkt.
* Called with the SCSI host lock unlocked and irqs disabled.
*
@@ -749,6 +785,15 @@ struct fc_disc {
enum fc_disc_event);
};
+/*
+ * Local port notifier and events.
+ */
+extern struct blocking_notifier_head fc_lport_notifier_head;
+enum fc_lport_event {
+ FC_LPORT_EV_ADD,
+ FC_LPORT_EV_DEL,
+};
+
/**
* struct fc_lport - Local port
* @host: The SCSI host associated with a local port
@@ -789,8 +834,10 @@ struct fc_disc {
* @lso_max: The maximum large offload send size
* @fcts: FC-4 type mask
* @lp_mutex: Mutex to protect the local port
- * @list: Handle for list of local ports
+ * @list: Linkage on list of vport peers
* @retry_work: Handle to local port for delayed retry context
+ * @prov: Pointers available for use by passive FC-4 providers
+ * @lport_list: Linkage on module-wide list of local ports
*/
struct fc_lport {
/* Associations */
@@ -846,8 +893,32 @@ struct fc_lport {
struct mutex lp_mutex;
struct list_head list;
struct delayed_work retry_work;
+ void *prov[FC_FC4_PROV_SIZE];
+ struct list_head lport_list;
};
+/**
+ * struct fc4_prov - FC-4 provider registration
+ * @prli: Handler for incoming PRLI
+ * @prlo: Handler for session reset
+ * @recv: Handler for incoming request
+ * @module: Pointer to module. May be NULL.
+ */
+struct fc4_prov {
+ int (*prli)(struct fc_rport_priv *, u32 spp_len,
+ const struct fc_els_spp *spp_in,
+ struct fc_els_spp *spp_out);
+ void (*prlo)(struct fc_rport_priv *);
+ void (*recv)(struct fc_lport *, struct fc_frame *);
+ struct module *module;
+};
+
+/*
+ * Register FC-4 provider with libfc.
+ */
+int fc_fc4_register_provider(enum fc_fh_type type, struct fc4_prov *);
+void fc_fc4_deregister_provider(enum fc_fh_type type, struct fc4_prov *);
+
/*
* FC_LPORT HELPER FUNCTIONS
*****************************/
@@ -978,6 +1049,7 @@ struct fc_lport *libfc_vport_create(struct fc_vport *, int privsize);
struct fc_lport *fc_vport_id_lookup(struct fc_lport *, u32 port_id);
int fc_lport_bsg_request(struct fc_bsg_job *);
void fc_lport_set_local_id(struct fc_lport *, u32 port_id);
+void fc_lport_iterate(void (*func)(struct fc_lport *, void *), void *);
/*
* REMOTE PORT LAYER
diff --git a/include/scsi/libfcoe.h b/include/scsi/libfcoe.h
index feb6a94c90e..8c1638b8c28 100644
--- a/include/scsi/libfcoe.h
+++ b/include/scsi/libfcoe.h
@@ -33,6 +33,12 @@
#define FCOE_MAX_CMD_LEN 16 /* Supported CDB length */
/*
+ * Max MTU for FCoE: 14 (FCoE header) + 24 (FC header) + 2112 (max FC payload)
+ * + 4 (FC CRC) + 4 (FCoE trailer) = 2158 bytes
+ */
+#define FCOE_MTU 2158
+
+/*
* FIP tunable parameters.
*/
#define FCOE_CTLR_START_DELAY 2000 /* mS after first adv. to choose FCF */
@@ -221,6 +227,8 @@ int fcoe_ctlr_recv_flogi(struct fcoe_ctlr *, struct fc_lport *,
u64 fcoe_wwn_from_mac(unsigned char mac[], unsigned int, unsigned int);
int fcoe_libfc_config(struct fc_lport *, struct fcoe_ctlr *,
const struct libfc_function_template *, int init_fcp);
+u32 fcoe_fc_crc(struct fc_frame *fp);
+int fcoe_start_io(struct sk_buff *skb);
/**
* is_fip_mode() - returns true if FIP mode selected.
@@ -231,5 +239,102 @@ static inline bool is_fip_mode(struct fcoe_ctlr *fip)
return fip->state == FIP_ST_ENABLED;
}
+/* helper for FCoE SW HBA drivers, can include subven and subdev if needed. The
+ * modpost would use pci_device_id table to auto-generate formatted module alias
+ * into the corresponding .mod.c file, but there may or may not be a pci device
+ * id table for FCoE drivers so we use the following helper for build the fcoe
+ * driver module alias.
+ */
+#define MODULE_ALIAS_FCOE_PCI(ven, dev) \
+ MODULE_ALIAS("fcoe-pci:" \
+ "v" __stringify(ven) \
+ "d" __stringify(dev) "sv*sd*bc*sc*i*")
+
+/* the name of the default FCoE transport driver fcoe.ko */
+#define FCOE_TRANSPORT_DEFAULT "fcoe"
+
+/* struct fcoe_transport - The FCoE transport interface
+ * @name: a vendor specific name for their FCoE transport driver
+ * @attached: whether this transport is already attached
+ * @list: list linkage to all attached transports
+ * @match: handler to allow the transport driver to match up a given netdev
+ * @create: handler to sysfs entry of create for FCoE instances
+ * @destroy: handler to sysfs entry of destroy for FCoE instances
+ * @enable: handler to sysfs entry of enable for FCoE instances
+ * @disable: handler to sysfs entry of disable for FCoE instances
+ */
+struct fcoe_transport {
+ char name[IFNAMSIZ];
+ bool attached;
+ struct list_head list;
+ bool (*match) (struct net_device *device);
+ int (*create) (struct net_device *device, enum fip_state fip_mode);
+ int (*destroy) (struct net_device *device);
+ int (*enable) (struct net_device *device);
+ int (*disable) (struct net_device *device);
+};
+
+/**
+ * struct fcoe_percpu_s - The context for FCoE receive thread(s)
+ * @thread: The thread context
+ * @fcoe_rx_list: The queue of pending packets to process
+ * @page: The memory page for calculating frame trailer CRCs
+ * @crc_eof_offset: The offset into the CRC page pointing to available
+ * memory for a new trailer
+ */
+struct fcoe_percpu_s {
+ struct task_struct *thread;
+ struct sk_buff_head fcoe_rx_list;
+ struct page *crc_eof_page;
+ int crc_eof_offset;
+};
+
+/**
+ * struct fcoe_port - The FCoE private structure
+ * @priv: The associated fcoe interface. The structure is
+ * defined by the low level driver
+ * @lport: The associated local port
+ * @fcoe_pending_queue: The pending Rx queue of skbs
+ * @fcoe_pending_queue_active: Indicates if the pending queue is active
+ * @max_queue_depth: Max queue depth of pending queue
+ * @min_queue_depth: Min queue depth of pending queue
+ * @timer: The queue timer
+ * @destroy_work: Handle for work context
+ * (to prevent RTNL deadlocks)
+ * @data_srt_addr: Source address for data
+ *
+ * An instance of this structure is to be allocated along with the
+ * Scsi_Host and libfc fc_lport structures.
+ */
+struct fcoe_port {
+ void *priv;
+ struct fc_lport *lport;
+ struct sk_buff_head fcoe_pending_queue;
+ u8 fcoe_pending_queue_active;
+ u32 max_queue_depth;
+ u32 min_queue_depth;
+ struct timer_list timer;
+ struct work_struct destroy_work;
+ u8 data_src_addr[ETH_ALEN];
+};
+void fcoe_clean_pending_queue(struct fc_lport *);
+void fcoe_check_wait_queue(struct fc_lport *lport, struct sk_buff *skb);
+void fcoe_queue_timer(ulong lport);
+int fcoe_get_paged_crc_eof(struct sk_buff *skb, int tlen,
+ struct fcoe_percpu_s *fps);
+
+/**
+ * struct netdev_list
+ * A mapping from netdevice to fcoe_transport
+ */
+struct fcoe_netdev_mapping {
+ struct list_head list;
+ struct net_device *netdev;
+ struct fcoe_transport *ft;
+};
+
+/* fcoe transports registration and deregistration */
+int fcoe_transport_attach(struct fcoe_transport *ft);
+int fcoe_transport_detach(struct fcoe_transport *ft);
#endif /* _LIBFCOE_H */
diff --git a/include/scsi/libiscsi.h b/include/scsi/libiscsi.h
index 748382b32b5..0f4367751b7 100644
--- a/include/scsi/libiscsi.h
+++ b/include/scsi/libiscsi.h
@@ -212,9 +212,6 @@ struct iscsi_conn {
/* values userspace uses to id a conn */
int persistent_port;
char *persistent_address;
- /* remote portal currently connected to */
- int portal_port;
- char portal_address[ISCSI_ADDRESS_BUF_LEN];
/* MIB-statistics */
uint64_t txdata_octets;
@@ -319,9 +316,6 @@ struct iscsi_host {
/* hw address or netdev iscsi connection is bound to */
char *hwaddress;
char *netdev;
- /* local address */
- int local_port;
- char local_address[ISCSI_ADDRESS_BUF_LEN];
wait_queue_head_t session_removal_wq;
/* protects sessions and state */
@@ -394,6 +388,8 @@ extern void iscsi_session_failure(struct iscsi_session *session,
enum iscsi_err err);
extern int iscsi_conn_get_param(struct iscsi_cls_conn *cls_conn,
enum iscsi_param param, char *buf);
+extern int iscsi_conn_get_addr_param(struct sockaddr_storage *addr,
+ enum iscsi_param param, char *buf);
extern void iscsi_suspend_tx(struct iscsi_conn *conn);
extern void iscsi_suspend_queue(struct iscsi_conn *conn);
extern void iscsi_conn_queue_work(struct iscsi_conn *conn);
diff --git a/include/scsi/scsi.h b/include/scsi/scsi.h
index b76d4006e36..3668903e397 100644
--- a/include/scsi/scsi.h
+++ b/include/scsi/scsi.h
@@ -435,6 +435,10 @@ static inline int scsi_is_wlun(unsigned int lun)
* recover the link. Transport class will
* retry or fail IO */
#define DID_TRANSPORT_FAILFAST 0x0f /* Transport class fastfailed the io */
+#define DID_TARGET_FAILURE 0x10 /* Permanent target failure, do not retry on
+ * other paths */
+#define DID_NEXUS_FAILURE 0x11 /* Permanent nexus failure, retry on other
+ * paths might yield different results */
#define DRIVER_OK 0x00 /* Driver status */
/*
@@ -464,6 +468,7 @@ static inline int scsi_is_wlun(unsigned int lun)
#define TIMEOUT_ERROR 0x2007
#define SCSI_RETURN_NOT_HANDLED 0x2008
#define FAST_IO_FAIL 0x2009
+#define TARGET_ERROR 0x200A
/*
* Midlevel queue return values.
diff --git a/include/scsi/scsi_device.h b/include/scsi/scsi_device.h
index 85867dcde33..f171c65dc5a 100644
--- a/include/scsi/scsi_device.h
+++ b/include/scsi/scsi_device.h
@@ -184,6 +184,7 @@ typedef void (*activate_complete)(void *, int);
struct scsi_device_handler {
/* Used by the infrastructure */
struct list_head list; /* list of scsi_device_handlers */
+ int idx;
/* Filled by the hardware handler */
struct module *module;
diff --git a/include/scsi/scsi_transport_iscsi.h b/include/scsi/scsi_transport_iscsi.h
index 7fff94b3b2a..bf8f5296567 100644
--- a/include/scsi/scsi_transport_iscsi.h
+++ b/include/scsi/scsi_transport_iscsi.h
@@ -101,6 +101,8 @@ struct iscsi_transport {
void (*destroy_conn) (struct iscsi_cls_conn *conn);
int (*set_param) (struct iscsi_cls_conn *conn, enum iscsi_param param,
char *buf, int buflen);
+ int (*get_ep_param) (struct iscsi_endpoint *ep, enum iscsi_param param,
+ char *buf);
int (*get_conn_param) (struct iscsi_cls_conn *conn,
enum iscsi_param param, char *buf);
int (*get_session_param) (struct iscsi_cls_session *session,
@@ -160,8 +162,9 @@ struct iscsi_cls_conn {
void *dd_data; /* LLD private data */
struct iscsi_transport *transport;
uint32_t cid; /* connection id */
+ struct mutex ep_mutex;
+ struct iscsi_endpoint *ep;
- int active; /* must be accessed with the connlock */
struct device dev; /* sysfs transport/container device */
};
@@ -222,6 +225,7 @@ struct iscsi_endpoint {
void *dd_data; /* LLD private data */
struct device dev;
uint64_t id;
+ struct iscsi_cls_conn *conn;
};
/*
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-11-21 11:32:11 +0000