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-rw-r--r--include/scsi/libfcoe.h42
1 files changed, 41 insertions, 1 deletions
diff --git a/include/scsi/libfcoe.h b/include/scsi/libfcoe.h
index 1a84a3182da0..06f1b5a8ed19 100644
--- a/include/scsi/libfcoe.h
+++ b/include/scsi/libfcoe.h
@@ -26,6 +26,7 @@
#include <linux/netdevice.h>
#include <linux/skbuff.h>
#include <linux/workqueue.h>
+#include <linux/random.h>
#include <scsi/fc/fc_fcoe.h>
#include <scsi/libfc.h>
@@ -37,6 +38,7 @@
#define FCOE_CTLR_START_DELAY 2000 /* mS after first adv. to choose FCF */
#define FCOE_CTRL_SOL_TOV 2000 /* min. solicitation interval (mS) */
#define FCOE_CTLR_FCF_LIMIT 20 /* max. number of FCF entries */
+#define FCOE_CTLR_VN2VN_LOGIN_LIMIT 3 /* max. VN2VN rport login retries */
/**
* enum fip_state - internal state of FCoE controller.
@@ -45,6 +47,11 @@
* @FIP_ST_AUTO: determining whether to use FIP or non-FIP mode.
* @FIP_ST_NON_FIP: non-FIP mode selected.
* @FIP_ST_ENABLED: FIP mode selected.
+ * @FIP_ST_VNMP_START: VN2VN multipath mode start, wait
+ * @FIP_ST_VNMP_PROBE1: VN2VN sent first probe, listening
+ * @FIP_ST_VNMP_PROBE2: VN2VN sent second probe, listening
+ * @FIP_ST_VNMP_CLAIM: VN2VN sent claim, waiting for responses
+ * @FIP_ST_VNMP_UP: VN2VN multipath mode operation
*/
enum fip_state {
FIP_ST_DISABLED,
@@ -52,6 +59,11 @@ enum fip_state {
FIP_ST_AUTO,
FIP_ST_NON_FIP,
FIP_ST_ENABLED,
+ FIP_ST_VNMP_START,
+ FIP_ST_VNMP_PROBE1,
+ FIP_ST_VNMP_PROBE2,
+ FIP_ST_VNMP_CLAIM,
+ FIP_ST_VNMP_UP,
};
/*
@@ -62,6 +74,7 @@ enum fip_state {
#define FIP_MODE_AUTO FIP_ST_AUTO
#define FIP_MODE_NON_FIP FIP_ST_NON_FIP
#define FIP_MODE_FABRIC FIP_ST_ENABLED
+#define FIP_MODE_VN2VN FIP_ST_VNMP_START
/**
* struct fcoe_ctlr - FCoE Controller and FIP state
@@ -79,11 +92,14 @@ enum fip_state {
* @timer_work: &work_struct for doing keep-alives and resets.
* @recv_work: &work_struct for receiving FIP frames.
* @fip_recv_list: list of received FIP frames.
+ * @rnd_state: state for pseudo-random number generator.
+ * @port_id: proposed or selected local-port ID.
* @user_mfs: configured maximum FC frame size, including FC header.
* @flogi_oxid: exchange ID of most recent fabric login.
* @flogi_count: number of FLOGI attempts in AUTO mode.
* @map_dest: use the FC_MAP mode for destination MAC addresses.
* @spma: supports SPMA server-provided MACs mode
+ * @probe_tries: number of FC_IDs probed
* @dest_addr: MAC address of the selected FC forwarder.
* @ctl_src_addr: the native MAC address of our local port.
* @send: LLD-supplied function to handle sending FIP Ethernet frames
@@ -110,11 +126,16 @@ struct fcoe_ctlr {
struct work_struct timer_work;
struct work_struct recv_work;
struct sk_buff_head fip_recv_list;
+
+ struct rnd_state rnd_state;
+ u32 port_id;
+
u16 user_mfs;
u16 flogi_oxid;
u8 flogi_count;
u8 map_dest;
u8 spma;
+ u8 probe_tries;
u8 dest_addr[ETH_ALEN];
u8 ctl_src_addr[ETH_ALEN];
@@ -160,6 +181,24 @@ struct fcoe_fcf {
u8 fd_flags:1;
};
+/**
+ * struct fcoe_rport - VN2VN remote port
+ * @time: time of create or last beacon packet received from node
+ * @fcoe_len: max FCoE frame size, not including VLAN or Ethernet headers
+ * @flags: flags from probe or claim
+ * @login_count: number of unsuccessful rport logins to this port
+ * @enode_mac: E_Node control MAC address
+ * @vn_mac: VN_Node assigned MAC address for data
+ */
+struct fcoe_rport {
+ unsigned long time;
+ u16 fcoe_len;
+ u16 flags;
+ u8 login_count;
+ u8 enode_mac[ETH_ALEN];
+ u8 vn_mac[ETH_ALEN];
+};
+
/* FIP API functions */
void fcoe_ctlr_init(struct fcoe_ctlr *, enum fip_state);
void fcoe_ctlr_destroy(struct fcoe_ctlr *);
@@ -172,7 +211,8 @@ int fcoe_ctlr_recv_flogi(struct fcoe_ctlr *, struct fc_lport *,
/* libfcoe funcs */
u64 fcoe_wwn_from_mac(unsigned char mac[], unsigned int, unsigned int);
-int fcoe_libfc_config(struct fc_lport *, struct libfc_function_template *);
+int fcoe_libfc_config(struct fc_lport *, struct fcoe_ctlr *,
+ const struct libfc_function_template *, int init_fcp);
/**
* is_fip_mode() - returns true if FIP mode selected.