[SCSI] bfa: Add BSG interface to support ELS, CT and vendor commands.

- Added BSG interface support to BFA driver
- Adds support to send ELS/CT FC passthru commands and
  few vendor specific BSG requests.

Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>

1 files changed, 135 insertions, 0 deletions

diff --git a/drivers/scsi/bfa/bfad_bsg.h b/drivers/scsi/bfa/bfad_bsg.h
new file mode 100644
index 000000000000..e0e90f031ff7
--- /dev/null
+++ b/drivers/scsi/bfa/bfad_bsg.h
@@ -0,0 +1,135 @@
+/*
+ * Copyright (c) 2005-2010 Brocade Communications Systems, Inc.
+ * All rights reserved
+ * www.brocade.com
+ *
+ * Linux driver for Brocade Fibre Channel Host Bus Adapter.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License (GPL) Version 2 as
+ * published by the Free Software Foundation
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ */
+#ifndef BFAD_BSG_H
+#define BFAD_BSG_H
+
+#include "bfa_defs.h"
+#include "bfa_defs_fcs.h"
+
+/* Definitions of vendor unique structures and command codes passed in
+ * using FC_BSG_HST_VENDOR message code.
+ */
+enum {
+        IOCMD_IOC_GET_ATTR = 0x1,
+        IOCMD_IOC_GET_INFO,
+        IOCMD_PORT_GET_ATTR,
+        IOCMD_LPORT_GET_ATTR,
+        IOCMD_RPORT_GET_ADDR,
+        IOCMD_FABRIC_GET_LPORTS,
+        IOCMD_ITNIM_GET_ATTR,
+};
+
+struct bfa_bsg_ioc_info_s {
+        bfa_status_t    status;
+        u16             bfad_num;
+        u16             rsvd;
+        char            serialnum[64];
+        char            hwpath[BFA_STRING_32];
+        char            adapter_hwpath[BFA_STRING_32];
+        char            guid[BFA_ADAPTER_SYM_NAME_LEN*2];
+        char            name[BFA_ADAPTER_SYM_NAME_LEN];
+        char            port_name[BFA_ADAPTER_SYM_NAME_LEN];
+        char            eth_name[BFA_ADAPTER_SYM_NAME_LEN];
+        wwn_t           pwwn;
+        wwn_t           nwwn;
+        wwn_t           factorypwwn;
+        wwn_t           factorynwwn;
+        mac_t           mac;
+        mac_t           factory_mac; /* Factory mac address */
+        mac_t           current_mac; /* Currently assigned mac address */
+        enum bfa_ioc_type_e     ioc_type;
+        u16             pvid; /* Port vlan id */
+        u16             rsvd1;
+        u32             host;
+        u32             bandwidth; /* For PF support */
+        u32             rsvd2;
+};
+
+struct bfa_bsg_ioc_attr_s {
+        bfa_status_t    status;
+        u16             bfad_num;
+        u16             rsvd;
+        struct bfa_ioc_attr_s  ioc_attr;
+};
+
+struct bfa_bsg_port_attr_s {
+        bfa_status_t    status;
+        u16             bfad_num;
+        u16             rsvd;
+        struct bfa_port_attr_s  attr;
+};
+
+struct bfa_bsg_lport_attr_s {
+        bfa_status_t    status;
+        u16             bfad_num;
+        u16             vf_id;
+        wwn_t           pwwn;
+        struct bfa_lport_attr_s port_attr;
+};
+
+struct bfa_bsg_rport_scsi_addr_s {
+        bfa_status_t    status;
+        u16             bfad_num;
+        u16             vf_id;
+        wwn_t           pwwn;
+        wwn_t           rpwwn;
+        u32             host;
+        u32             bus;
+        u32             target;
+        u32             lun;
+};
+
+struct bfa_bsg_fabric_get_lports_s {
+        bfa_status_t    status;
+        u16             bfad_num;
+        u16             vf_id;
+        u64             buf_ptr;
+        u32             nports;
+        u32             rsvd;
+};
+
+struct bfa_bsg_itnim_attr_s {
+        bfa_status_t    status;
+        u16             bfad_num;
+        u16             vf_id;
+        wwn_t           lpwwn;
+        wwn_t           rpwwn;
+        struct bfa_itnim_attr_s attr;
+};
+
+struct bfa_bsg_fcpt_s {
+        bfa_status_t    status;
+        u16             vf_id;
+        wwn_t           lpwwn;
+        wwn_t           dpwwn;
+        u32             tsecs;
+        int             cts;
+        enum fc_cos     cos;
+        struct fchs_s   fchs;
+};
+#define bfa_bsg_fcpt_t struct bfa_bsg_fcpt_s
+
+struct bfa_bsg_data {
+        int payload_len;
+        void *payload;
+};
+
+#define bfad_chk_iocmd_sz(__payload_len, __hdrsz, __bufsz)      \
+        (((__payload_len) != ((__hdrsz) + (__bufsz))) ?         \
+         BFA_STATUS_FAILED : BFA_STATUS_OK)
+
+#endif /* BFAD_BSG_H */