From 1543e317f1da31b75942316931e8f491a8920811 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Thu, 04 Jan 2024 10:08:02 +0000
Subject: [PATCH] disable FB
---
kernel/drivers/s390/scsi/zfcp_def.h | 123 +++++++++++++++++++++++++---------------
1 files changed, 76 insertions(+), 47 deletions(-)
diff --git a/kernel/drivers/s390/scsi/zfcp_def.h b/kernel/drivers/s390/scsi/zfcp_def.h
index 3396a47..da8a5ce 100644
--- a/kernel/drivers/s390/scsi/zfcp_def.h
+++ b/kernel/drivers/s390/scsi/zfcp_def.h
@@ -4,7 +4,7 @@
*
* Global definitions for the zfcp device driver.
*
- * Copyright IBM Corp. 2002, 2010
+ * Copyright IBM Corp. 2002, 2020
*/
#ifndef ZFCP_DEF_H
@@ -41,24 +41,16 @@
#include "zfcp_fc.h"
#include "zfcp_qdio.h"
-struct zfcp_reqlist;
-
-/********************* SCSI SPECIFIC DEFINES *********************************/
-#define ZFCP_SCSI_ER_TIMEOUT (10*HZ)
-
/********************* FSF SPECIFIC DEFINES *********************************/
/* ATTENTION: value must not be used by hardware */
#define FSF_QTCB_UNSOLICITED_STATUS 0x6305
-/* timeout value for "default timer" for fsf requests */
-#define ZFCP_FSF_REQUEST_TIMEOUT (60*HZ)
-
/*************** ADAPTER/PORT/UNIT AND FSF_REQ STATUS FLAGS ******************/
/*
- * Note, the leftmost status byte is common among adapter, port
- * and unit
+ * Note, the leftmost 12 status bits (3 nibbles) are common among adapter, port
+ * and unit. This is a mask for bitwise 'and' with status values.
*/
#define ZFCP_COMMON_FLAGS 0xfff00000
@@ -94,10 +86,53 @@
#define ZFCP_STATUS_FSFREQ_ABORTNOTNEEDED 0x00000080
#define ZFCP_STATUS_FSFREQ_TMFUNCFAILED 0x00000200
#define ZFCP_STATUS_FSFREQ_DISMISSED 0x00001000
+#define ZFCP_STATUS_FSFREQ_XDATAINCOMPLETE 0x00020000
/************************* STRUCTURE DEFINITIONS *****************************/
-struct zfcp_fsf_req;
+/**
+ * enum zfcp_erp_act_type - Type of ERP action object.
+ * @ZFCP_ERP_ACTION_REOPEN_LUN: LUN recovery.
+ * @ZFCP_ERP_ACTION_REOPEN_PORT: Port recovery.
+ * @ZFCP_ERP_ACTION_REOPEN_PORT_FORCED: Forced port recovery.
+ * @ZFCP_ERP_ACTION_REOPEN_ADAPTER: Adapter recovery.
+ *
+ * Values must fit into u8 because of code dependencies:
+ * zfcp_dbf_rec_trig(), &zfcp_dbf_rec_trigger.want, &zfcp_dbf_rec_trigger.need;
+ * zfcp_dbf_rec_run_lvl(), zfcp_dbf_rec_run(), &zfcp_dbf_rec_running.rec_action.
+ */
+enum zfcp_erp_act_type {
+ ZFCP_ERP_ACTION_REOPEN_LUN = 1,
+ ZFCP_ERP_ACTION_REOPEN_PORT = 2,
+ ZFCP_ERP_ACTION_REOPEN_PORT_FORCED = 3,
+ ZFCP_ERP_ACTION_REOPEN_ADAPTER = 4,
+};
+
+/*
+ * Values must fit into u16 because of code dependencies:
+ * zfcp_dbf_rec_run_lvl(), zfcp_dbf_rec_run(), zfcp_dbf_rec_run_wka(),
+ * &zfcp_dbf_rec_running.rec_step.
+ */
+enum zfcp_erp_steps {
+ ZFCP_ERP_STEP_UNINITIALIZED = 0x0000,
+ ZFCP_ERP_STEP_PHYS_PORT_CLOSING = 0x0010,
+ ZFCP_ERP_STEP_PORT_CLOSING = 0x0100,
+ ZFCP_ERP_STEP_PORT_OPENING = 0x0800,
+ ZFCP_ERP_STEP_LUN_CLOSING = 0x1000,
+ ZFCP_ERP_STEP_LUN_OPENING = 0x2000,
+};
+
+struct zfcp_erp_action {
+ struct list_head list;
+ enum zfcp_erp_act_type type; /* requested action code */
+ struct zfcp_adapter *adapter; /* device which should be recovered */
+ struct zfcp_port *port;
+ struct scsi_device *sdev;
+ u32 status; /* recovery status */
+ enum zfcp_erp_steps step; /* active step of this erp action */
+ unsigned long fsf_req_id;
+ struct timer_list timer;
+};
/* holds various memory pools of an adapter */
struct zfcp_adapter_mempool {
@@ -109,37 +144,6 @@
mempool_t *sr_data;
mempool_t *gid_pn;
mempool_t *qtcb_pool;
-};
-
-struct zfcp_erp_action {
- struct list_head list;
- int action; /* requested action code */
- struct zfcp_adapter *adapter; /* device which should be recovered */
- struct zfcp_port *port;
- struct scsi_device *sdev;
- u32 status; /* recovery status */
- u32 step; /* active step of this erp action */
- unsigned long fsf_req_id;
- struct timer_list timer;
-};
-
-struct fsf_latency_record {
- u32 min;
- u32 max;
- u64 sum;
-};
-
-struct latency_cont {
- struct fsf_latency_record channel;
- struct fsf_latency_record fabric;
- u64 counter;
-};
-
-struct zfcp_latencies {
- struct latency_cont read;
- struct latency_cont write;
- struct latency_cont cmd;
- spinlock_t lock;
};
struct zfcp_adapter {
@@ -154,6 +158,8 @@
u32 adapter_features; /* FCP channel features */
u32 connection_features; /* host connection features */
u32 hardware_version; /* of FCP channel */
+ u32 fc_security_algorithms; /* of FCP channel */
+ u32 fc_security_algorithms_old; /* of FCP channel */
u16 timer_ticks; /* time int for a tick */
struct Scsi_Host *scsi_host; /* Pointer to mid-layer */
struct list_head port_list; /* remote port list */
@@ -194,6 +200,7 @@
struct device_dma_parameters dma_parms;
struct zfcp_fc_events events;
unsigned long next_port_scan;
+ struct zfcp_diag_adapter *diagnostics;
};
struct zfcp_port {
@@ -213,11 +220,32 @@
atomic_t erp_counter;
u32 maxframe_size;
u32 supported_classes;
+ u32 connection_info;
+ u32 connection_info_old;
struct work_struct gid_pn_work;
struct work_struct test_link_work;
struct work_struct rport_work;
enum { RPORT_NONE, RPORT_ADD, RPORT_DEL } rport_task;
unsigned int starget_id;
+};
+
+struct zfcp_latency_record {
+ u32 min;
+ u32 max;
+ u64 sum;
+};
+
+struct zfcp_latency_cont {
+ struct zfcp_latency_record channel;
+ struct zfcp_latency_record fabric;
+ u64 counter;
+};
+
+struct zfcp_latencies {
+ struct zfcp_latency_cont read;
+ struct zfcp_latency_cont write;
+ struct zfcp_latency_cont cmd;
+ spinlock_t lock;
};
/**
@@ -287,9 +315,7 @@
* @qdio_req: qdio queue related values
* @completion: used to signal the completion of the request
* @status: status of the request
- * @fsf_command: FSF command issued
* @qtcb: associated QTCB
- * @seq_no: sequence number of this request
* @data: private data
* @timer: timer data of this request
* @erp_action: reference to erp action if request issued on behalf of ERP
@@ -304,9 +330,7 @@
struct zfcp_qdio_req qdio_req;
struct completion completion;
u32 status;
- u32 fsf_command;
struct fsf_qtcb *qtcb;
- u32 seq_no;
void *data;
struct timer_list timer;
struct zfcp_erp_action *erp_action;
@@ -321,4 +345,9 @@
return atomic_read(&adapter->status) & ZFCP_STATUS_ADAPTER_MB_ACT;
}
+static inline bool zfcp_fsf_req_is_status_read_buffer(struct zfcp_fsf_req *req)
+{
+ return req->qtcb == NULL;
+}
+
#endif /* ZFCP_DEF_H */
--
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