--- /dev/null
+/*
+ * This file is part of the Chelsio FCoE driver for Linux.
+ *
+ * Copyright (c) 2008-2012 Chelsio Communications, Inc. All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses. You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ * Redistribution and use in source and binary forms, with or
+ * without modification, are permitted provided that the following
+ * conditions are met:
+ *
+ * - Redistributions of source code must retain the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer in the documentation and/or other materials
+ * provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#ifndef __CSIO_LNODE_H__
+#define __CSIO_LNODE_H__
+
+#include <linux/kref.h>
+#include <linux/timer.h>
+#include <linux/workqueue.h>
+#include <scsi/fc/fc_els.h>
+
+
+#include "csio_defs.h"
+#include "csio_hw.h"
+
+#define CSIO_FCOE_MAX_NPIV 128
+#define CSIO_FCOE_MAX_RNODES 2048
+
+/* FDMI port attribute unknown speed */
+#define CSIO_HBA_PORTSPEED_UNKNOWN 0x8000
+
+extern int csio_fcoe_rnodes;
+extern int csio_fdmi_enable;
+
+/* State machine evets */
+enum csio_ln_ev {
+ CSIO_LNE_NONE = (uint32_t)0,
+ CSIO_LNE_LINKUP,
+ CSIO_LNE_FAB_INIT_DONE,
+ CSIO_LNE_LINK_DOWN,
+ CSIO_LNE_DOWN_LINK,
+ CSIO_LNE_LOGO,
+ CSIO_LNE_CLOSE,
+ CSIO_LNE_MAX_EVENT,
+};
+
+
+struct csio_fcf_info {
+ struct list_head list;
+ uint8_t priority;
+ uint8_t mac[6];
+ uint8_t name_id[8];
+ uint8_t fabric[8];
+ uint16_t vf_id;
+ uint8_t vlan_id;
+ uint16_t max_fcoe_size;
+ uint8_t fc_map[3];
+ uint32_t fka_adv;
+ uint32_t fcfi;
+ uint8_t get_next:1;
+ uint8_t link_aff:1;
+ uint8_t fpma:1;
+ uint8_t spma:1;
+ uint8_t login:1;
+ uint8_t portid;
+ uint8_t spma_mac[6];
+ struct kref kref;
+};
+
+/* Defines for flags */
+#define CSIO_LNF_FIPSUPP 0x00000001 /* Fip Supported */
+#define CSIO_LNF_NPIVSUPP 0x00000002 /* NPIV supported */
+#define CSIO_LNF_LINK_ENABLE 0x00000004 /* Link enabled */
+#define CSIO_LNF_FDMI_ENABLE 0x00000008 /* FDMI support */
+
+/* Transport events */
+enum csio_ln_fc_evt {
+ CSIO_LN_FC_LINKUP = 1,
+ CSIO_LN_FC_LINKDOWN,
+ CSIO_LN_FC_RSCN,
+ CSIO_LN_FC_ATTRIB_UPDATE,
+};
+
+/* Lnode stats */
+struct csio_lnode_stats {
+ uint32_t n_link_up; /* Link down */
+ uint32_t n_link_down; /* Link up */
+ uint32_t n_err; /* error */
+ uint32_t n_err_nomem; /* memory not available */
+ uint32_t n_inval_parm; /* Invalid parameters */
+ uint32_t n_evt_unexp; /* unexpected event */
+ uint32_t n_evt_drop; /* dropped event */
+ uint32_t n_rnode_match; /* matched rnode */
+ uint32_t n_dev_loss_tmo; /* Device loss timeout */
+ uint32_t n_fdmi_err; /* fdmi err */
+ uint32_t n_evt_fw[PROTO_ERR_IMPL_LOGO + 1]; /* fw events */
+ enum csio_ln_ev n_evt_sm[CSIO_LNE_MAX_EVENT]; /* State m/c events */
+ uint32_t n_rnode_alloc; /* rnode allocated */
+ uint32_t n_rnode_free; /* rnode freed */
+ uint32_t n_rnode_nomem; /* rnode alloc failure */
+ uint32_t n_input_requests; /* Input Requests */
+ uint32_t n_output_requests; /* Output Requests */
+ uint32_t n_control_requests; /* Control Requests */
+ uint32_t n_input_bytes; /* Input Bytes */
+ uint32_t n_output_bytes; /* Output Bytes */
+ uint32_t rsvd1;
+};
+
+/* Common Lnode params */
+struct csio_lnode_params {
+ uint32_t ra_tov;
+ uint32_t fcfi;
+ uint32_t log_level; /* Module level for debugging */
+};
+
+struct csio_service_parms {
+ struct fc_els_csp csp; /* Common service parms */
+ uint8_t wwpn[8]; /* WWPN */
+ uint8_t wwnn[8]; /* WWNN */
+ struct fc_els_cssp clsp[4]; /* Class service params */
+ uint8_t vvl[16]; /* Vendor version level */
+};
+
+/* Lnode */
+struct csio_lnode {
+ struct csio_sm sm; /* State machine + sibling
+ * lnode list.
+ */
+ struct csio_hw *hwp; /* Pointer to the HW module */
+ uint8_t portid; /* Port ID */
+ uint8_t rsvd1;
+ uint16_t rsvd2;
+ uint32_t dev_num; /* Device number */
+ uint32_t flags; /* Flags */
+ struct list_head fcf_lsthead; /* FCF entries */
+ struct csio_fcf_info *fcfinfo; /* FCF in use */
+ struct csio_ioreq *mgmt_req; /* MGMT request */
+
+ /* FCoE identifiers */
+ uint8_t mac[6];
+ uint32_t nport_id;
+ struct csio_service_parms ln_sparm; /* Service parms */
+
+ /* Firmware identifiers */
+ uint32_t fcf_flowid; /*fcf flowid */
+ uint32_t vnp_flowid;
+ uint16_t ssn_cnt; /* Registered Session */
+ uint8_t cur_evt; /* Current event */
+ uint8_t prev_evt; /* Previous event */
+
+ /* Children */
+ struct list_head cln_head; /* Head of the children lnode
+ * list.
+ */
+ uint32_t num_vports; /* Total NPIV/children LNodes*/
+ struct csio_lnode *pln; /* Parent lnode of child
+ * lnodes.
+ */
+ struct list_head cmpl_q; /* Pending I/Os on this lnode */
+
+ /* Remote node information */
+ struct list_head rnhead; /* Head of rnode list */
+ uint32_t num_reg_rnodes; /* Number of rnodes registered
+ * with the host.
+ */
+ uint32_t n_scsi_tgts; /* Number of scsi targets
+ * found
+ */
+ uint32_t last_scan_ntgts;/* Number of scsi targets
+ * found per last scan.
+ */
+ uint32_t tgt_scan_tick; /* timer started after
+ * new tgt found
+ */
+ /* FC transport data */
+ struct fc_vport *fc_vport;
+ struct fc_host_statistics fch_stats;
+
+ struct csio_lnode_stats stats; /* Common lnode stats */
+ struct csio_lnode_params params; /* Common lnode params */
+};
+
+#define csio_lnode_to_hw(ln) ((ln)->hwp)
+#define csio_root_lnode(ln) (csio_lnode_to_hw((ln))->rln)
+#define csio_parent_lnode(ln) ((ln)->pln)
+#define csio_ln_flowid(ln) ((ln)->vnp_flowid)
+#define csio_ln_wwpn(ln) ((ln)->ln_sparm.wwpn)
+#define csio_ln_wwnn(ln) ((ln)->ln_sparm.wwnn)
+
+#define csio_is_root_ln(ln) (((ln) == csio_root_lnode((ln))) ? 1 : 0)
+#define csio_is_phys_ln(ln) (((ln)->pln == NULL) ? 1 : 0)
+#define csio_is_npiv_ln(ln) (((ln)->pln != NULL) ? 1 : 0)
+
+
+#define csio_ln_dbg(_ln, _fmt, ...) \
+ csio_dbg(_ln->hwp, "%x:%x "_fmt, CSIO_DEVID_HI(_ln), \
+ CSIO_DEVID_LO(_ln), ##__VA_ARGS__);
+
+#define csio_ln_err(_ln, _fmt, ...) \
+ csio_err(_ln->hwp, "%x:%x "_fmt, CSIO_DEVID_HI(_ln), \
+ CSIO_DEVID_LO(_ln), ##__VA_ARGS__);
+
+#define csio_ln_warn(_ln, _fmt, ...) \
+ csio_warn(_ln->hwp, "%x:%x "_fmt, CSIO_DEVID_HI(_ln), \
+ CSIO_DEVID_LO(_ln), ##__VA_ARGS__);
+
+/* HW->Lnode notifications */
+enum csio_ln_notify {
+ CSIO_LN_NOTIFY_HWREADY = 1,
+ CSIO_LN_NOTIFY_HWSTOP,
+ CSIO_LN_NOTIFY_HWREMOVE,
+ CSIO_LN_NOTIFY_HWRESET,
+};
+
+void csio_fcoe_fwevt_handler(struct csio_hw *, __u8 cpl_op, __be64 *);
+int csio_is_lnode_ready(struct csio_lnode *);
+void csio_lnode_state_to_str(struct csio_lnode *ln, int8_t *str);
+struct csio_lnode *csio_lnode_lookup_by_wwpn(struct csio_hw *, uint8_t *);
+int csio_get_phy_port_stats(struct csio_hw *, uint8_t ,
+ struct fw_fcoe_port_stats *);
+int csio_scan_done(struct csio_lnode *, unsigned long, unsigned long,
+ unsigned long, unsigned long);
+void csio_notify_lnodes(struct csio_hw *, enum csio_ln_notify);
+void csio_disable_lnodes(struct csio_hw *, uint8_t, bool);
+void csio_lnode_async_event(struct csio_lnode *, enum csio_ln_fc_evt);
+int csio_ln_fdmi_start(struct csio_lnode *, void *);
+int csio_lnode_start(struct csio_lnode *);
+void csio_lnode_stop(struct csio_lnode *);
+void csio_lnode_close(struct csio_lnode *);
+int csio_lnode_init(struct csio_lnode *, struct csio_hw *,
+ struct csio_lnode *);
+void csio_lnode_exit(struct csio_lnode *);
+
+#endif /* ifndef __CSIO_LNODE_H__ */
Code Review / kvmfornfv.git / blobdiff