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Message-ID: <545F3F1A.5030902@gmail.com>
Date: Sun, 09 Nov 2014 18:16:58 +0800
From: Chen Gang <gang.chen.5i5j@...il.com>
To: megaraidlinux@....com,
"JBottomley@...allels.com" <JBottomley@...allels.com>
CC: linux-scsi@...r.kernel.org,
"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: [PATCH] drivers: scsi: megaraid: Add "megaraid_sas_internal.h" for
internal shared functions using
For shared inline functions acrossed source files, better to let it as
"static inline" in a header file. For extern functions, better to
declare them in header file.
For the latest upstream gcc/binutiles (gcc 5 with ld 2.25.51), it will
cause building break (although it might be the gcc's or ld's issue), the
related error (with allmodconfig under tile):
MODPOST 4002 modules
ERROR: "megasas_return_cmd" [drivers/scsi/megaraid/megaraid_sas.ko] undefined!
ERROR: "megasas_is_ldio" [drivers/scsi/megaraid/megaraid_sas.ko] undefined!
Signed-off-by: Chen Gang <gang.chen.5i5j@...il.com>
---
drivers/scsi/megaraid/megaraid_sas_base.c | 65 +----------------
drivers/scsi/megaraid/megaraid_sas_fusion.c | 38 +---------
drivers/scsi/megaraid/megaraid_sas_internal.h | 100 ++++++++++++++++++++++++++
3 files changed, 102 insertions(+), 101 deletions(-)
create mode 100644 drivers/scsi/megaraid/megaraid_sas_internal.h
diff --git a/drivers/scsi/megaraid/megaraid_sas_base.c b/drivers/scsi/megaraid/megaraid_sas_base.c
index f6a69a3..4a71c04 100644
--- a/drivers/scsi/megaraid/megaraid_sas_base.c
+++ b/drivers/scsi/megaraid/megaraid_sas_base.c
@@ -57,6 +57,7 @@
#include <scsi/scsi_tcq.h>
#include "megaraid_sas_fusion.h"
#include "megaraid_sas.h"
+#include "megaraid_sas_internal.h"
/*
* Number of sectors per IO command
@@ -98,7 +99,6 @@ MODULE_VERSION(MEGASAS_VERSION);
MODULE_AUTHOR("megaraidlinux@....com");
MODULE_DESCRIPTION("LSI MegaRAID SAS Driver");
-int megasas_transition_to_ready(struct megasas_instance *instance, int ocr);
static int megasas_get_pd_list(struct megasas_instance *instance);
static int megasas_ld_list_query(struct megasas_instance *instance,
u8 query_type);
@@ -155,9 +155,6 @@ static u32 support_device_change;
/* define lock for aen poll */
spinlock_t poll_aen_lock;
-void
-megasas_complete_cmd(struct megasas_instance *instance, struct megasas_cmd *cmd,
- u8 alt_status);
static u32
megasas_read_fw_status_reg_gen2(struct megasas_register_set __iomem *regs);
static int
@@ -170,26 +167,8 @@ u32
megasas_build_and_issue_cmd(struct megasas_instance *instance,
struct scsi_cmnd *scmd);
static void megasas_complete_cmd_dpc(unsigned long instance_addr);
-void
-megasas_release_fusion(struct megasas_instance *instance);
-int
-megasas_ioc_init_fusion(struct megasas_instance *instance);
-void
-megasas_free_cmds_fusion(struct megasas_instance *instance);
-u8
-megasas_get_map_info(struct megasas_instance *instance);
-int
-megasas_sync_map_info(struct megasas_instance *instance);
-int
-wait_and_poll(struct megasas_instance *instance, struct megasas_cmd *cmd,
- int seconds);
-void megasas_reset_reply_desc(struct megasas_instance *instance);
-int megasas_reset_fusion(struct Scsi_Host *shost, int iotimeout);
-void megasas_fusion_ocr_wq(struct work_struct *work);
static int megasas_get_ld_vf_affiliation(struct megasas_instance *instance,
int initial);
-int megasas_check_mpio_paths(struct megasas_instance *instance,
- struct scsi_cmnd *scmd);
void
megasas_issue_dcmd(struct megasas_instance *instance, struct megasas_cmd *cmd)
@@ -258,22 +237,6 @@ __megasas_return_cmd(struct megasas_instance *instance, struct megasas_cmd *cmd)
}
/**
- * megasas_return_cmd - Return a cmd to free command pool
- * @instance: Adapter soft state
- * @cmd: Command packet to be returned to free command pool
- */
-inline void
-megasas_return_cmd(struct megasas_instance *instance, struct megasas_cmd *cmd)
-{
- unsigned long flags;
-
- spin_lock_irqsave(&instance->mfi_pool_lock, flags);
- __megasas_return_cmd(instance, cmd);
- spin_unlock_irqrestore(&instance->mfi_pool_lock, flags);
-}
-
-
-/**
* The following functions are defined for xscale
* (deviceid : 1064R, PERC5) controllers
*/
@@ -1417,32 +1380,6 @@ megasas_build_ldio(struct megasas_instance *instance, struct scsi_cmnd *scp,
return cmd->frame_count;
}
-/**
- * megasas_is_ldio - Checks if the cmd is for logical drive
- * @scmd: SCSI command
- *
- * Called by megasas_queue_command to find out if the command to be queued
- * is a logical drive command
- */
-inline int megasas_is_ldio(struct scsi_cmnd *cmd)
-{
- if (!MEGASAS_IS_LOGICAL(cmd))
- return 0;
- switch (cmd->cmnd[0]) {
- case READ_10:
- case WRITE_10:
- case READ_12:
- case WRITE_12:
- case READ_6:
- case WRITE_6:
- case READ_16:
- case WRITE_16:
- return 1;
- default:
- return 0;
- }
-}
-
/**
* megasas_dump_pending_frames - Dumps the frame address of all pending cmds
* in FW
diff --git a/drivers/scsi/megaraid/megaraid_sas_fusion.c b/drivers/scsi/megaraid/megaraid_sas_fusion.c
index f37eed6..c2b8782 100644
--- a/drivers/scsi/megaraid/megaraid_sas_fusion.c
+++ b/drivers/scsi/megaraid/megaraid_sas_fusion.c
@@ -54,43 +54,7 @@
#include "megaraid_sas_fusion.h"
#include "megaraid_sas.h"
-
-extern void megasas_free_cmds(struct megasas_instance *instance);
-extern struct megasas_cmd *megasas_get_cmd(struct megasas_instance
- *instance);
-extern void
-megasas_complete_cmd(struct megasas_instance *instance,
- struct megasas_cmd *cmd, u8 alt_status);
-int megasas_is_ldio(struct scsi_cmnd *cmd);
-int
-wait_and_poll(struct megasas_instance *instance, struct megasas_cmd *cmd,
- int seconds);
-
-void
-megasas_return_cmd(struct megasas_instance *instance, struct megasas_cmd *cmd);
-int megasas_alloc_cmds(struct megasas_instance *instance);
-int
-megasas_clear_intr_fusion(struct megasas_register_set __iomem *regs);
-int
-megasas_issue_polled(struct megasas_instance *instance,
- struct megasas_cmd *cmd);
-void
-megasas_check_and_restore_queue_depth(struct megasas_instance *instance);
-
-int megasas_transition_to_ready(struct megasas_instance *instance, int ocr);
-void megaraid_sas_kill_hba(struct megasas_instance *instance);
-
-extern u32 megasas_dbg_lvl;
-void megasas_sriov_heartbeat_handler(unsigned long instance_addr);
-int megasas_sriov_start_heartbeat(struct megasas_instance *instance,
- int initial);
-void megasas_start_timer(struct megasas_instance *instance,
- struct timer_list *timer,
- void *fn, unsigned long interval);
-extern struct megasas_mgmt_info megasas_mgmt_info;
-extern int resetwaittime;
-
-
+#include "megaraid_sas_internal.h"
/**
* megasas_enable_intr_fusion - Enables interrupts
diff --git a/drivers/scsi/megaraid/megaraid_sas_internal.h b/drivers/scsi/megaraid/megaraid_sas_internal.h
new file mode 100644
index 0000000..b2b0a55
--- /dev/null
+++ b/drivers/scsi/megaraid/megaraid_sas_internal.h
@@ -0,0 +1,100 @@
+#ifndef LSI_MEGARAID_SAS_INTERNAL_H
+#define LSI_MEGARAID_SAS_INTERNAL_H
+
+/*
+ * From base.
+ */
+
+extern void megasas_free_cmds(struct megasas_instance *instance);
+extern struct megasas_cmd *megasas_get_cmd(struct megasas_instance
+ *instance);
+
+extern void
+megasas_complete_cmd(struct megasas_instance *instance,
+ struct megasas_cmd *cmd, u8 alt_status);
+/**
+ * megasas_is_ldio - Checks if the cmd is for logical drive
+ * @scmd: SCSI command
+ *
+ * Called by megasas_queue_command to find out if the command to be queued
+ * is a logical drive command
+ */
+static inline int megasas_is_ldio(struct scsi_cmnd *cmd)
+{
+ if (!MEGASAS_IS_LOGICAL(cmd))
+ return 0;
+ switch (cmd->cmnd[0]) {
+ case READ_10:
+ case WRITE_10:
+ case READ_12:
+ case WRITE_12:
+ case READ_6:
+ case WRITE_6:
+ case READ_16:
+ case WRITE_16:
+ return 1;
+ default:
+ return 0;
+ }
+}
+
+/**
+ * megasas_return_cmd - Return a cmd to free command pool
+ * @instance: Adapter soft state
+ * @cmd: Command packet to be returned to free command pool
+ */
+static inline void
+megasas_return_cmd(struct megasas_instance *instance, struct megasas_cmd *cmd)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&instance->mfi_pool_lock, flags);
+ __megasas_return_cmd(instance, cmd);
+ spin_unlock_irqrestore(&instance->mfi_pool_lock, flags);
+}
+
+int megasas_alloc_cmds(struct megasas_instance *instance);
+
+int
+megasas_issue_polled(struct megasas_instance *instance,
+ struct megasas_cmd *cmd);
+void
+megasas_check_and_restore_queue_depth(struct megasas_instance *instance);
+
+int megasas_transition_to_ready(struct megasas_instance *instance, int ocr);
+void megaraid_sas_kill_hba(struct megasas_instance *instance);
+
+extern u32 megasas_dbg_lvl;
+void megasas_sriov_heartbeat_handler(unsigned long instance_addr);
+int megasas_sriov_start_heartbeat(struct megasas_instance *instance,
+ int initial);
+void megasas_start_timer(struct megasas_instance *instance,
+ struct timer_list *timer,
+ void *fn, unsigned long interval);
+extern struct megasas_mgmt_info megasas_mgmt_info;
+extern int resetwaittime;
+
+/*
+ * From fusion.
+ */
+
+int megasas_check_mpio_paths(struct megasas_instance *instance,
+ struct scsi_cmnd *scmd);
+int
+wait_and_poll(struct megasas_instance *instance, struct megasas_cmd *cmd,
+ int seconds);
+void
+megasas_release_fusion(struct megasas_instance *instance);
+int
+megasas_ioc_init_fusion(struct megasas_instance *instance);
+void
+megasas_free_cmds_fusion(struct megasas_instance *instance);
+u8
+megasas_get_map_info(struct megasas_instance *instance);
+int
+megasas_sync_map_info(struct megasas_instance *instance);
+void megasas_reset_reply_desc(struct megasas_instance *instance);
+int megasas_reset_fusion(struct Scsi_Host *shost, int iotimeout);
+void megasas_fusion_ocr_wq(struct work_struct *work);
+
+#endif /* LSI_MEGARAID_SAS_INTERNAL_H */
--
1.9.3
--
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