[SCSI] bfa: Brocade BFA FC SCSI driver
Add new driver for Brocade Hardware
Signed-off-by: Jing Huang <huangj@brocade.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
diff --git a/drivers/scsi/bfa/vfapi.c b/drivers/scsi/bfa/vfapi.c
new file mode 100644
index 0000000..31d81fe
--- /dev/null
+++ b/drivers/scsi/bfa/vfapi.c
@@ -0,0 +1,292 @@
+/*
+ * Copyright (c) 2005-2009 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.
+ */
+
+/**
+ * vfapi.c Fabric module implementation.
+ */
+
+#include "fcs_fabric.h"
+#include "fcs_trcmod.h"
+
+BFA_TRC_FILE(FCS, VFAPI);
+
+/**
+ * fcs_vf_api virtual fabrics API
+ */
+
+/**
+ * Enable VF mode.
+ *
+ * @param[in] fcs fcs module instance
+ * @param[in] vf_id default vf_id of port, FC_VF_ID_NULL
+ * to use standard default vf_id of 1.
+ *
+ * @retval BFA_STATUS_OK vf mode is enabled
+ * @retval BFA_STATUS_BUSY Port is active. Port must be disabled
+ * before VF mode can be enabled.
+ */
+bfa_status_t
+bfa_fcs_vf_mode_enable(struct bfa_fcs_s *fcs, u16 vf_id)
+{
+ return BFA_STATUS_OK;
+}
+
+/**
+ * Disable VF mode.
+ *
+ * @param[in] fcs fcs module instance
+ *
+ * @retval BFA_STATUS_OK vf mode is disabled
+ * @retval BFA_STATUS_BUSY VFs are present and being used. All
+ * VFs must be deleted before disabling
+ * VF mode.
+ */
+bfa_status_t
+bfa_fcs_vf_mode_disable(struct bfa_fcs_s *fcs)
+{
+ return BFA_STATUS_OK;
+}
+
+/**
+ * Create a new VF instance.
+ *
+ * A new VF is created using the given VF configuration. A VF is identified
+ * by VF id. No duplicate VF creation is allowed with the same VF id. Once
+ * a VF is created, VF is automatically started after link initialization
+ * and EVFP exchange is completed.
+ *
+ * param[in] vf - FCS vf data structure. Memory is
+ * allocated by caller (driver)
+ * param[in] fcs - FCS module
+ * param[in] vf_cfg - VF configuration
+ * param[in] vf_drv - Opaque handle back to the driver's
+ * virtual vf structure
+ *
+ * retval BFA_STATUS_OK VF creation is successful
+ * retval BFA_STATUS_FAILED VF creation failed
+ * retval BFA_STATUS_EEXIST A VF exists with the given vf_id
+ */
+bfa_status_t
+bfa_fcs_vf_create(bfa_fcs_vf_t *vf, struct bfa_fcs_s *fcs, u16 vf_id,
+ struct bfa_port_cfg_s *port_cfg, struct bfad_vf_s *vf_drv)
+{
+ bfa_trc(fcs, vf_id);
+ return BFA_STATUS_OK;
+}
+
+/**
+ * Use this function to delete a BFA VF object. VF object should
+ * be stopped before this function call.
+ *
+ * param[in] vf - pointer to bfa_vf_t.
+ *
+ * retval BFA_STATUS_OK On vf deletion success
+ * retval BFA_STATUS_BUSY VF is not in a stopped state
+ * retval BFA_STATUS_INPROGRESS VF deletion in in progress
+ */
+bfa_status_t
+bfa_fcs_vf_delete(bfa_fcs_vf_t *vf)
+{
+ bfa_trc(vf->fcs, vf->vf_id);
+ return BFA_STATUS_OK;
+}
+
+/**
+ * Start participation in VF. This triggers login to the virtual fabric.
+ *
+ * param[in] vf - pointer to bfa_vf_t.
+ *
+ * return None
+ */
+void
+bfa_fcs_vf_start(bfa_fcs_vf_t *vf)
+{
+ bfa_trc(vf->fcs, vf->vf_id);
+}
+
+/**
+ * Logout with the virtual fabric.
+ *
+ * param[in] vf - pointer to bfa_vf_t.
+ *
+ * retval BFA_STATUS_OK On success.
+ * retval BFA_STATUS_INPROGRESS VF is being stopped.
+ */
+bfa_status_t
+bfa_fcs_vf_stop(bfa_fcs_vf_t *vf)
+{
+ bfa_trc(vf->fcs, vf->vf_id);
+ return BFA_STATUS_OK;
+}
+
+/**
+ * Returns attributes of the given VF.
+ *
+ * param[in] vf pointer to bfa_vf_t.
+ * param[out] vf_attr vf attributes returned
+ *
+ * return None
+ */
+void
+bfa_fcs_vf_get_attr(bfa_fcs_vf_t *vf, struct bfa_vf_attr_s *vf_attr)
+{
+ bfa_trc(vf->fcs, vf->vf_id);
+}
+
+/**
+ * Return statistics associated with the given vf.
+ *
+ * param[in] vf pointer to bfa_vf_t.
+ * param[out] vf_stats vf statistics returned
+ *
+ * @return None
+ */
+void
+bfa_fcs_vf_get_stats(bfa_fcs_vf_t *vf, struct bfa_vf_stats_s *vf_stats)
+{
+ bfa_os_memcpy(vf_stats, &vf->stats, sizeof(struct bfa_vf_stats_s));
+ return;
+}
+
+void
+/**
+ * clear statistics associated with the given vf.
+ *
+ * param[in] vf pointer to bfa_vf_t.
+ *
+ * @return None
+ */
+bfa_fcs_vf_clear_stats(bfa_fcs_vf_t *vf)
+{
+ bfa_os_memset(&vf->stats, 0, sizeof(struct bfa_vf_stats_s));
+ return;
+}
+
+/**
+ * Returns FCS vf structure for a given vf_id.
+ *
+ * param[in] vf_id - VF_ID
+ *
+ * return
+ * If lookup succeeds, retuns fcs vf object, otherwise returns NULL
+ */
+bfa_fcs_vf_t *
+bfa_fcs_vf_lookup(struct bfa_fcs_s *fcs, u16 vf_id)
+{
+ bfa_trc(fcs, vf_id);
+ if (vf_id == FC_VF_ID_NULL)
+ return (&fcs->fabric);
+
+ /**
+ * @todo vf support
+ */
+
+ return NULL;
+}
+
+/**
+ * Returns driver VF structure for a given FCS vf.
+ *
+ * param[in] vf - pointer to bfa_vf_t
+ *
+ * return Driver VF structure
+ */
+struct bfad_vf_s *
+bfa_fcs_vf_get_drv_vf(bfa_fcs_vf_t *vf)
+{
+ bfa_assert(vf);
+ bfa_trc(vf->fcs, vf->vf_id);
+ return vf->vf_drv;
+}
+
+/**
+ * Return the list of VFs configured.
+ *
+ * param[in] fcs fcs module instance
+ * param[out] vf_ids returned list of vf_ids
+ * param[in,out] nvfs in:size of vf_ids array,
+ * out:total elements present,
+ * actual elements returned is limited by the size
+ *
+ * return Driver VF structure
+ */
+void
+bfa_fcs_vf_list(struct bfa_fcs_s *fcs, u16 *vf_ids, int *nvfs)
+{
+ bfa_trc(fcs, *nvfs);
+}
+
+/**
+ * Return the list of all VFs visible from fabric.
+ *
+ * param[in] fcs fcs module instance
+ * param[out] vf_ids returned list of vf_ids
+ * param[in,out] nvfs in:size of vf_ids array,
+ * out:total elements present,
+ * actual elements returned is limited by the size
+ *
+ * return Driver VF structure
+ */
+void
+bfa_fcs_vf_list_all(struct bfa_fcs_s *fcs, u16 *vf_ids, int *nvfs)
+{
+ bfa_trc(fcs, *nvfs);
+}
+
+/**
+ * Return the list of local logical ports present in the given VF.
+ *
+ * param[in] vf vf for which logical ports are returned
+ * param[out] lpwwn returned logical port wwn list
+ * param[in,out] nlports in:size of lpwwn list;
+ * out:total elements present,
+ * actual elements returned is limited by the size
+ *
+ */
+void
+bfa_fcs_vf_get_ports(bfa_fcs_vf_t *vf, wwn_t lpwwn[], int *nlports)
+{
+ struct list_head *qe;
+ struct bfa_fcs_vport_s *vport;
+ int i;
+ struct bfa_fcs_s *fcs;
+
+ if (vf == NULL || lpwwn == NULL || *nlports == 0)
+ return;
+
+ fcs = vf->fcs;
+
+ bfa_trc(fcs, vf->vf_id);
+ bfa_trc(fcs, (u32) *nlports);
+
+ i = 0;
+ lpwwn[i++] = vf->bport.port_cfg.pwwn;
+
+ list_for_each(qe, &vf->vport_q) {
+ if (i >= *nlports)
+ break;
+
+ vport = (struct bfa_fcs_vport_s *) qe;
+ lpwwn[i++] = vport->lport.port_cfg.pwwn;
+ }
+
+ bfa_trc(fcs, i);
+ *nlports = i;
+ return;
+}
+
+