[SCSI] csiostor: Chelsio FCoE offload driver
Signed-off-by: Naresh Kumar Inna <naresh@chelsio.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
diff --git a/drivers/scsi/csiostor/csio_rnode.h b/drivers/scsi/csiostor/csio_rnode.h
new file mode 100644
index 0000000..a3b434c
--- /dev/null
+++ b/drivers/scsi/csiostor/csio_rnode.h
@@ -0,0 +1,141 @@
+/*
+ * 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_RNODE_H__
+#define __CSIO_RNODE_H__
+
+#include "csio_defs.h"
+
+/* State machine evets */
+enum csio_rn_ev {
+ CSIO_RNFE_NONE = (uint32_t)0, /* None */
+ CSIO_RNFE_LOGGED_IN, /* [N/F]Port login
+ * complete.
+ */
+ CSIO_RNFE_PRLI_DONE, /* PRLI completed */
+ CSIO_RNFE_PLOGI_RECV, /* Received PLOGI */
+ CSIO_RNFE_PRLI_RECV, /* Received PLOGI */
+ CSIO_RNFE_LOGO_RECV, /* Received LOGO */
+ CSIO_RNFE_PRLO_RECV, /* Received PRLO */
+ CSIO_RNFE_DOWN, /* Rnode is down */
+ CSIO_RNFE_CLOSE, /* Close rnode */
+ CSIO_RNFE_NAME_MISSING, /* Rnode name missing
+ * in name server.
+ */
+ CSIO_RNFE_MAX_EVENT,
+};
+
+/* rnode stats */
+struct csio_rnode_stats {
+ uint32_t n_err; /* error */
+ uint32_t n_err_inval; /* invalid parameter */
+ uint32_t n_err_nomem; /* error nomem */
+ uint32_t n_evt_unexp; /* unexpected event */
+ uint32_t n_evt_drop; /* unexpected event */
+ uint32_t n_evt_fw[RSCN_DEV_LOST]; /* fw events */
+ enum csio_rn_ev n_evt_sm[CSIO_RNFE_MAX_EVENT]; /* State m/c events */
+ uint32_t n_lun_rst; /* Number of resets of
+ * of LUNs under this
+ * target
+ */
+ uint32_t n_lun_rst_fail; /* Number of LUN reset
+ * failures.
+ */
+ uint32_t n_tgt_rst; /* Number of target resets */
+ uint32_t n_tgt_rst_fail; /* Number of target reset
+ * failures.
+ */
+};
+
+/* Defines for rnode role */
+#define CSIO_RNFR_INITIATOR 0x1
+#define CSIO_RNFR_TARGET 0x2
+#define CSIO_RNFR_FABRIC 0x4
+#define CSIO_RNFR_NS 0x8
+#define CSIO_RNFR_NPORT 0x10
+
+struct csio_rnode {
+ struct csio_sm sm; /* State machine -
+ * should be the
+ * 1st member
+ */
+ struct csio_lnode *lnp; /* Pointer to owning
+ * Lnode */
+ uint32_t flowid; /* Firmware ID */
+ struct list_head host_cmpl_q; /* SCSI IOs
+ * pending to completed
+ * to Mid-layer.
+ */
+ /* FC identifiers for remote node */
+ uint32_t nport_id;
+ uint16_t fcp_flags; /* FCP Flags */
+ uint8_t cur_evt; /* Current event */
+ uint8_t prev_evt; /* Previous event */
+ uint32_t role; /* Fabric/Target/
+ * Initiator/NS
+ */
+ struct fcoe_rdev_entry *rdev_entry; /* Rdev entry */
+ struct csio_service_parms rn_sparm;
+
+ /* FC transport attributes */
+ struct fc_rport *rport; /* FC transport rport */
+ uint32_t supp_classes; /* Supported FC classes */
+ uint32_t maxframe_size; /* Max Frame size */
+ uint32_t scsi_id; /* Transport given SCSI id */
+
+ struct csio_rnode_stats stats; /* Common rnode stats */
+};
+
+#define csio_rn_flowid(rn) ((rn)->flowid)
+#define csio_rn_wwpn(rn) ((rn)->rn_sparm.wwpn)
+#define csio_rn_wwnn(rn) ((rn)->rn_sparm.wwnn)
+#define csio_rnode_to_lnode(rn) ((rn)->lnp)
+
+int csio_is_rnode_ready(struct csio_rnode *rn);
+void csio_rnode_state_to_str(struct csio_rnode *rn, int8_t *str);
+
+struct csio_rnode *csio_rnode_lookup_portid(struct csio_lnode *, uint32_t);
+struct csio_rnode *csio_confirm_rnode(struct csio_lnode *,
+ uint32_t, struct fcoe_rdev_entry *);
+
+void csio_rnode_fwevt_handler(struct csio_rnode *rn, uint8_t fwevt);
+
+void csio_put_rnode(struct csio_lnode *ln, struct csio_rnode *rn);
+
+void csio_reg_rnode(struct csio_rnode *);
+void csio_unreg_rnode(struct csio_rnode *);
+
+void csio_rnode_devloss_handler(struct csio_rnode *);
+
+#endif /* ifndef __CSIO_RNODE_H__ */