From 10ebd8556b7990499c896a550e3d416b444211e6 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Fri, 10 May 2024 02:23:07 +0000
Subject: [PATCH] add led
---
kernel/include/scsi/scsi_cmnd.h | 52 +++++++++++++++-------------------------------------
1 files changed, 15 insertions(+), 37 deletions(-)
diff --git a/kernel/include/scsi/scsi_cmnd.h b/kernel/include/scsi/scsi_cmnd.h
index 1615661..4b7f140 100644
--- a/kernel/include/scsi/scsi_cmnd.h
+++ b/kernel/include/scsi/scsi_cmnd.h
@@ -36,7 +36,6 @@
struct scsi_data_buffer {
struct sg_table table;
unsigned length;
- int resid;
};
/* embedded in scsi_cmnd */
@@ -59,29 +58,23 @@
#define SCMD_TAGGED (1 << 0)
#define SCMD_UNCHECKED_ISA_DMA (1 << 1)
#define SCMD_INITIALIZED (1 << 2)
+#define SCMD_LAST (1 << 3)
/* flags preserved across unprep / reprep */
#define SCMD_PRESERVED_FLAGS (SCMD_UNCHECKED_ISA_DMA | SCMD_INITIALIZED)
+
+/* for scmd->state */
+#define SCMD_STATE_COMPLETE 0
+#define SCMD_STATE_INFLIGHT 1
struct scsi_cmnd {
struct scsi_request req;
struct scsi_device *device;
- struct list_head list; /* scsi_cmnd participates in queue lists */
struct list_head eh_entry; /* entry for the host eh_cmd_q */
struct delayed_work abort_work;
struct rcu_head rcu;
int eh_eflags; /* Used by error handlr */
-
- /*
- * A SCSI Command is assigned a nonzero serial_number before passed
- * to the driver's queue command function. The serial_number is
- * cleared when scsi_done is entered indicating that the command
- * has been completed. It is a bug for LLDDs to use this number
- * for purposes other than printk (and even that is only useful
- * for debugging).
- */
- unsigned long serial_number;
/*
* This is set to jiffies as it was when the command was first
@@ -146,8 +139,10 @@
int result; /* Status code from lower level driver */
int flags; /* Command flags */
+ unsigned long state; /* Command completion state */
unsigned char tag; /* SCSI-II queued command tag */
+ unsigned int extra_len; /* length of alignment and padding */
ANDROID_KABI_RESERVE(1);
ANDROID_KABI_RESERVE(2);
@@ -170,14 +165,14 @@
return *(struct scsi_driver **)cmd->request->rq_disk->private_data;
}
-extern void scsi_put_command(struct scsi_cmnd *);
extern void scsi_finish_command(struct scsi_cmnd *cmd);
extern void *scsi_kmap_atomic_sg(struct scatterlist *sg, int sg_count,
size_t *offset, size_t *len);
extern void scsi_kunmap_atomic_sg(void *virt);
-extern int scsi_init_io(struct scsi_cmnd *cmd);
+blk_status_t scsi_alloc_sgtables(struct scsi_cmnd *cmd);
+void scsi_free_sgtables(struct scsi_cmnd *cmd);
#ifdef CONFIG_SCSI_DMA
extern int scsi_dma_map(struct scsi_cmnd *cmd);
@@ -202,38 +197,21 @@
return cmd->sdb.length;
}
-static inline void scsi_set_resid(struct scsi_cmnd *cmd, int resid)
+static inline void scsi_set_resid(struct scsi_cmnd *cmd, unsigned int resid)
{
- cmd->sdb.resid = resid;
+ cmd->req.resid_len = resid;
}
-static inline int scsi_get_resid(struct scsi_cmnd *cmd)
+static inline unsigned int scsi_get_resid(struct scsi_cmnd *cmd)
{
- return cmd->sdb.resid;
+ return cmd->req.resid_len;
}
#define scsi_for_each_sg(cmd, sg, nseg, __i) \
for_each_sg(scsi_sglist(cmd), sg, nseg, __i)
-static inline int scsi_bidi_cmnd(struct scsi_cmnd *cmd)
-{
- return blk_bidi_rq(cmd->request) &&
- (cmd->request->next_rq->special != NULL);
-}
-
-static inline struct scsi_data_buffer *scsi_in(struct scsi_cmnd *cmd)
-{
- return scsi_bidi_cmnd(cmd) ?
- cmd->request->next_rq->special : &cmd->sdb;
-}
-
-static inline struct scsi_data_buffer *scsi_out(struct scsi_cmnd *cmd)
-{
- return &cmd->sdb;
-}
-
static inline int scsi_sg_copy_from_buffer(struct scsi_cmnd *cmd,
- void *buf, int buflen)
+ const void *buf, int buflen)
{
return sg_copy_from_buffer(scsi_sglist(cmd), scsi_sg_count(cmd),
buf, buflen);
@@ -353,7 +331,7 @@
static inline unsigned scsi_transfer_length(struct scsi_cmnd *scmd)
{
- unsigned int xfer_len = scsi_out(scmd)->length;
+ unsigned int xfer_len = scmd->sdb.length;
unsigned int prot_interval = scsi_prot_interval(scmd);
if (scmd->prot_flags & SCSI_PROT_TRANSFER_PI)
--
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