Adding upstream version 6.1.76.upstream/6.1.76

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 227 insertions, 0 deletions

diff --git a/drivers/scsi/bfa/bfad_im.h b/drivers/scsi/bfa/bfad_im.h
new file mode 100644
index 000000000..c03b225ea
--- /dev/null
+++ b/drivers/scsi/bfa/bfad_im.h
@@ -0,0 +1,227 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (c) 2005-2014 Brocade Communications Systems, Inc.
+ * Copyright (c) 2014- QLogic Corporation.
+ * All rights reserved
+ * www.qlogic.com
+ *
+ * Linux driver for QLogic BR-series Fibre Channel Host Bus Adapter.
+ */
+
+#ifndef __BFAD_IM_H__
+#define __BFAD_IM_H__
+
+#include "bfa_fcs.h"
+
+#define FCPI_NAME " fcpim"
+
+#ifndef KOBJ_NAME_LEN
+#define KOBJ_NAME_LEN           20
+#endif
+
+bfa_status_t bfad_im_module_init(void);
+void bfad_im_module_exit(void);
+bfa_status_t bfad_im_probe(struct bfad_s *bfad);
+void bfad_im_probe_undo(struct bfad_s *bfad);
+bfa_status_t bfad_im_port_new(struct bfad_s *bfad, struct bfad_port_s *port);
+void bfad_im_port_delete(struct bfad_s *bfad, struct bfad_port_s *port);
+void bfad_im_port_clean(struct bfad_im_port_s *im_port);
+int  bfad_im_scsi_host_alloc(struct bfad_s *bfad,
+		struct bfad_im_port_s *im_port, struct device *dev);
+void bfad_im_scsi_host_free(struct bfad_s *bfad,
+				struct bfad_im_port_s *im_port);
+u32 bfad_im_supported_speeds(struct bfa_s *bfa);
+
+#define MAX_FCP_TARGET 1024
+#define MAX_FCP_LUN 16384
+#define BFAD_TARGET_RESET_TMO 60
+#define BFAD_LUN_RESET_TMO 60
+#define BFA_QUEUE_FULL_RAMP_UP_TIME 120
+
+/*
+ * itnim flags
+ */
+#define IO_DONE_BIT			0
+
+/**
+ * struct bfad_cmd_priv - private data per SCSI command.
+ * @status: Lowest bit represents IO_DONE. The next seven bits hold a value of
+ * type enum bfi_tskim_status.
+ * @wq: Wait queue used to wait for completion of an operation.
+ */
+struct bfad_cmd_priv {
+	unsigned long status;
+	wait_queue_head_t *wq;
+};
+
+static inline struct bfad_cmd_priv *bfad_priv(struct scsi_cmnd *cmd)
+{
+	return scsi_cmd_priv(cmd);
+}
+
+struct bfad_itnim_data_s {
+	struct bfad_itnim_s *itnim;
+};
+
+struct bfad_im_port_s {
+	struct bfad_s         *bfad;
+	struct bfad_port_s    *port;
+	struct work_struct port_delete_work;
+	int             idr_id;
+	u16        cur_scsi_id;
+	u16	flags;
+	struct list_head binding_list;
+	struct Scsi_Host *shost;
+	struct list_head itnim_mapped_list;
+	struct fc_vport *fc_vport;
+};
+
+struct bfad_im_port_pointer {
+	struct bfad_im_port_s *p;
+};
+
+static inline struct bfad_im_port_s *bfad_get_im_port(struct Scsi_Host *host)
+{
+	struct bfad_im_port_pointer *im_portp = shost_priv(host);
+	return im_portp->p;
+}
+
+enum bfad_itnim_state {
+	ITNIM_STATE_NONE,
+	ITNIM_STATE_ONLINE,
+	ITNIM_STATE_OFFLINE_PENDING,
+	ITNIM_STATE_OFFLINE,
+	ITNIM_STATE_TIMEOUT,
+	ITNIM_STATE_FREE,
+};
+
+/*
+ * Per itnim data structure
+ */
+struct bfad_itnim_s {
+	struct list_head list_entry;
+	struct bfa_fcs_itnim_s fcs_itnim;
+	struct work_struct itnim_work;
+	u32        flags;
+	enum bfad_itnim_state state;
+	struct bfad_im_s *im;
+	struct bfad_im_port_s *im_port;
+	struct bfad_rport_s *drv_rport;
+	struct fc_rport *fc_rport;
+	struct bfa_itnim_s *bfa_itnim;
+	u16        scsi_tgt_id;
+	u16	   channel;
+	u16        queue_work;
+	unsigned long	last_ramp_up_time;
+	unsigned long	last_queue_full_time;
+};
+
+enum bfad_binding_type {
+	FCP_PWWN_BINDING = 0x1,
+	FCP_NWWN_BINDING = 0x2,
+	FCP_FCID_BINDING = 0x3,
+};
+
+struct bfad_fcp_binding {
+	struct list_head list_entry;
+	enum bfad_binding_type binding_type;
+	u16        scsi_target_id;
+	u32        fc_id;
+	wwn_t           nwwn;
+	wwn_t           pwwn;
+};
+
+struct bfad_im_s {
+	struct bfad_s         *bfad;
+	struct workqueue_struct *drv_workq;
+	char            drv_workq_name[KOBJ_NAME_LEN];
+	struct work_struct	aen_im_notify_work;
+};
+
+#define bfad_get_aen_entry(_drv, _entry) do {				\
+	unsigned long	_flags;						\
+	spin_lock_irqsave(&(_drv)->bfad_aen_spinlock, _flags);		\
+	bfa_q_deq(&(_drv)->free_aen_q, &(_entry));			\
+	if (_entry)							\
+		list_add_tail(&(_entry)->qe, &(_drv)->active_aen_q);	\
+	spin_unlock_irqrestore(&(_drv)->bfad_aen_spinlock, _flags);	\
+} while (0)
+
+/* post fc_host vendor event */
+static inline void bfad_im_post_vendor_event(struct bfa_aen_entry_s *entry,
+					     struct bfad_s *drv, int cnt,
+					     enum bfa_aen_category cat,
+					     int evt)
+{
+	struct timespec64 ts;
+
+	ktime_get_real_ts64(&ts);
+	/*
+	 * 'unsigned long aen_tv_sec' overflows in y2106 on 32-bit
+	 * architectures, or in 2038 if user space interprets it
+	 * as 'signed'.
+	 */
+	entry->aen_tv_sec = ts.tv_sec;
+	entry->aen_tv_usec = ts.tv_nsec / NSEC_PER_USEC;
+	entry->bfad_num = drv->inst_no;
+	entry->seq_num = cnt;
+	entry->aen_category = cat;
+	entry->aen_type = evt;
+	if (drv->bfad_flags & BFAD_FC4_PROBE_DONE)
+		queue_work(drv->im->drv_workq, &drv->im->aen_im_notify_work);
+}
+
+struct Scsi_Host *bfad_scsi_host_alloc(struct bfad_im_port_s *im_port,
+				struct bfad_s *);
+bfa_status_t bfad_thread_workq(struct bfad_s *bfad);
+void bfad_destroy_workq(struct bfad_im_s *im);
+void bfad_fc_host_init(struct bfad_im_port_s *im_port);
+void bfad_scsi_host_free(struct bfad_s *bfad,
+				 struct bfad_im_port_s *im_port);
+void bfad_ramp_up_qdepth(struct bfad_itnim_s *itnim,
+				 struct scsi_device *sdev);
+void bfad_handle_qfull(struct bfad_itnim_s *itnim, struct scsi_device *sdev);
+struct bfad_itnim_s *bfad_get_itnim(struct bfad_im_port_s *im_port, int id);
+
+extern struct scsi_host_template bfad_im_scsi_host_template;
+extern struct scsi_host_template bfad_im_vport_template;
+extern struct fc_function_template bfad_im_fc_function_template;
+extern struct fc_function_template bfad_im_vport_fc_function_template;
+extern struct scsi_transport_template *bfad_im_scsi_transport_template;
+extern struct scsi_transport_template *bfad_im_scsi_vport_transport_template;
+
+extern const struct attribute_group *bfad_im_host_groups[];
+extern const struct attribute_group *bfad_im_vport_groups[];
+
+irqreturn_t bfad_intx(int irq, void *dev_id);
+
+int bfad_im_bsg_request(struct bsg_job *job);
+int bfad_im_bsg_timeout(struct bsg_job *job);
+
+/*
+ * Macro to set the SCSI device sdev_bflags - sdev_bflags are used by the
+ * SCSI mid-layer to choose LUN Scanning mode REPORT_LUNS vs. Sequential Scan
+ *
+ * Internally iterate's over all the ITNIM's part of the im_port & set's the
+ * sdev_bflags for the scsi_device associated with LUN #0.
+ */
+#define bfad_reset_sdev_bflags(__im_port, __lunmask_cfg) do {		\
+	struct scsi_device *__sdev = NULL;				\
+	struct bfad_itnim_s *__itnim = NULL;				\
+	u32 scan_flags = BLIST_NOREPORTLUN | BLIST_SPARSELUN;		\
+	list_for_each_entry(__itnim, &((__im_port)->itnim_mapped_list),	\
+			    list_entry) {				\
+		__sdev = scsi_device_lookup((__im_port)->shost,		\
+					    __itnim->channel,		\
+					    __itnim->scsi_tgt_id, 0);	\
+		if (__sdev) {						\
+			if ((__lunmask_cfg) == BFA_TRUE)		\
+				__sdev->sdev_bflags |= scan_flags;	\
+			else						\
+				__sdev->sdev_bflags &= ~scan_flags;	\
+			scsi_device_put(__sdev);			\
+		}							\
+	}								\
+} while (0)
+
+#endif