lkml.org 
[lkml]   [2009]   [Jun]   [6]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
Date
From
Subject[PATCH 2/2]Intel Moorestown NAND driver - update to sync up with block layer APIs change in linux-next tree
Hi Greg,

This is an incremental patch for Intel Moorestown NAND flash driver to account for block layer API updates in
linux-next tree. It has passed compiling against linux-next tree, tag
next-20090605.

Thanks.

Rgds,
Yunpeng


From 2155b682e282f4fccac5c7cb71ef6da65d4baa1f Mon Sep 17 00:00:00 2001
From: Gao Yunpeng <yunpeng.gao@intel.com>
Date: Sat, 6 Jun 2009 21:37:58 +0800
Subject: [PATCH] Fix build errors causing by block layer APIs change

Signed-off-by: Gao Yunpeng <yunpeng.gao@intel.com>
---
drivers/staging/mrst_nand/ffsport.c | 61 ++++++++++++++++++----------------
1 files changed, 32 insertions(+), 29 deletions(-)

diff --git a/drivers/staging/mrst_nand/ffsport.c b/drivers/staging/mrst_nand/ffsport.c
index 5a919f4..347ff20 100644
--- a/drivers/staging/mrst_nand/ffsport.c
+++ b/drivers/staging/mrst_nand/ffsport.c
@@ -145,7 +145,7 @@ u32 *GLOB_MEMMAP_TOBUS(u32 *ptr)

#define GLOB_SBD_NAME "nd"
#define GLOB_SBD_IRQ_NUM (29)
-#define GLOB_VERSION "driver version 20090531"
+#define GLOB_VERSION "driver version 20090606"

#define GLOB_SBD_IOCTL_GC (0x7701)
#define GLOB_SBD_IOCTL_WL (0x7702)
@@ -358,7 +358,7 @@ static int do_transfer(struct spectra_nand_dev *tr, struct request *req)
char *buf;
u32 ratio = IdentifyDeviceData.PageDataSize >> 9;

- start_addr = (u64)(req->sector) << 9;
+ start_addr = (u64)(blk_rq_pos(req)) << 9;
/* Add a big enough offset to prevent the OS Image from
* being accessed or damaged by file system */
start_addr += (SBD_BLOCK_SIZE * res_blks_os);
@@ -366,22 +366,22 @@ static int do_transfer(struct spectra_nand_dev *tr, struct request *req)
if (req->cmd_type == REQ_TYPE_LINUX_BLOCK &&
req->cmd[0] == REQ_LB_OP_FLUSH) {
if (force_flush_cache()) /* Fail to flush cache */
- return 0;
+ return -EIO;
else
- return 1;
+ return 0;
}

if (!blk_fs_request(req))
- return 0;
+ return -EIO;

- if (req->sector + req->current_nr_sectors > get_capacity(tr->gd)) {
+ if (blk_rq_pos(req) + blk_rq_cur_sectors(req) > get_capacity(tr->gd)) {
printk(KERN_ERR "Spectra error: request over the NAND "
"capacity!sector %d, current_nr_sectors %d, "
"while capacity is %d\n",
- (int)req->sector,
- req->current_nr_sectors,
+ (int)blk_rq_pos(req),
+ blk_rq_cur_sectors(req),
(int)get_capacity(tr->gd));
- return 0;
+ return -EIO;
}

logical_start_sect = start_addr >> 9;
@@ -390,7 +390,7 @@ static int do_transfer(struct spectra_nand_dev *tr, struct request *req)

addr = (u64)hd_start_sect * ratio * 512;
buf = req->buffer;
- nsect = req->current_nr_sectors;
+ nsect = blk_rq_cur_sectors(req);

if (rsect)
tsect = (ratio - rsect) < nsect ? (ratio - rsect) : nsect;
@@ -402,7 +402,7 @@ static int do_transfer(struct spectra_nand_dev *tr, struct request *req)
if (GLOB_FTL_Page_Read(tr->tmp_buf, addr)) {
printk(KERN_ERR "Error in %s, Line %d\n",
__FILE__, __LINE__);
- return 0;
+ return -EIO;
}
memcpy(buf, tr->tmp_buf + (rsect << 9), tsect << 9);
addr += IdentifyDeviceData.PageDataSize;
@@ -415,7 +415,7 @@ static int do_transfer(struct spectra_nand_dev *tr, struct request *req)
if (GLOB_FTL_Page_Read(buf, addr)) {
printk(KERN_ERR "Error in %s, Line %d\n",
__FILE__, __LINE__);
- return 0;
+ return -EIO;
}
addr += IdentifyDeviceData.PageDataSize;
buf += IdentifyDeviceData.PageDataSize;
@@ -426,11 +426,11 @@ static int do_transfer(struct spectra_nand_dev *tr, struct request *req)
if (GLOB_FTL_Page_Read(tr->tmp_buf, addr)) {
printk(KERN_ERR "Error in %s, Line %d\n",
__FILE__, __LINE__);
- return 0;
+ return -EIO;
}
memcpy(buf, tr->tmp_buf, (nsect % ratio) << 9);
}
- return 1;
+ return 0;

case WRITE:
/* Write the first NAND page */
@@ -438,13 +438,13 @@ static int do_transfer(struct spectra_nand_dev *tr, struct request *req)
if (GLOB_FTL_Page_Read(tr->tmp_buf, addr)) {
printk(KERN_ERR "Error in %s, Line %d\n",
__FILE__, __LINE__);
- return 0;
+ return -EIO;
}
memcpy(tr->tmp_buf + (rsect << 9), buf, tsect << 9);
if (GLOB_FTL_Page_Write(tr->tmp_buf, addr)) {
printk(KERN_ERR "Error in %s, Line %d\n",
__FILE__, __LINE__);
- return 0;
+ return -EIO;
}
addr += IdentifyDeviceData.PageDataSize;
buf += tsect << 9;
@@ -456,7 +456,7 @@ static int do_transfer(struct spectra_nand_dev *tr, struct request *req)
if (GLOB_FTL_Page_Write(buf, addr)) {
printk(KERN_ERR "Error in %s, Line %d\n",
__FILE__, __LINE__);
- return 0;
+ return -EIO;
}
addr += IdentifyDeviceData.PageDataSize;
buf += IdentifyDeviceData.PageDataSize;
@@ -467,20 +467,20 @@ static int do_transfer(struct spectra_nand_dev *tr, struct request *req)
if (GLOB_FTL_Page_Read(tr->tmp_buf, addr)) {
printk(KERN_ERR "Error in %s, Line %d\n",
__FILE__, __LINE__);
- return 0;
+ return -EIO;
}
memcpy(tr->tmp_buf, buf, (nsect % ratio) << 9);
if (GLOB_FTL_Page_Write(tr->tmp_buf, addr)) {
printk(KERN_ERR "Error in %s, Line %d\n",
__FILE__, __LINE__);
- return 0;
+ return -EIO;
}
}
- return 1;
+ return 0;

default:
printk(KERN_NOTICE "Unknown request %u\n", rq_data_dir(req));
- return 0;
+ return -EIO;
}
}

@@ -489,18 +489,16 @@ static int spectra_trans_thread(void *arg)
{
struct spectra_nand_dev *tr = arg;
struct request_queue *rq = tr->queue;
+ struct request *req = NULL;

/* we might get involved when memory gets low, so use PF_MEMALLOC */
current->flags |= PF_MEMALLOC;

spin_lock_irq(rq->queue_lock);
while (!kthread_should_stop()) {
- struct request *req;
- int res = 0;
-
- req = elv_next_request(rq);
+ int res;

- if (!req) {
+ if (!req && !(req = blk_fetch_request(rq))) {
set_current_state(TASK_INTERRUPTIBLE);
spin_unlock_irq(rq->queue_lock);
schedule();
@@ -516,8 +514,13 @@ static int spectra_trans_thread(void *arg)

spin_lock_irq(rq->queue_lock);

- end_request(req, res);
+ if (!__blk_end_request_cur(req, res))
+ req = NULL;
}
+
+ if (req)
+ __blk_end_request_all(req, -EIO);
+
spin_unlock_irq(rq->queue_lock);

return 0;
@@ -736,8 +739,8 @@ static int SBD_setup_device(struct spectra_nand_dev *dev, int which)
}
dev->queue->queuedata = dev;

- /* blk_queue_hardsect_size(dev->queue, SBD_SECTOR_SIZE); */
- blk_queue_hardsect_size(dev->queue, 512);
+ /* blk_queue_logical_block_size(dev->queue, SBD_SECTOR_SIZE); */
+ blk_queue_logical_block_size(dev->queue, 512);
blk_queue_ordered(dev->queue, QUEUE_ORDERED_DRAIN_FLUSH,
SBD_prepare_flush);

--
1.5.4.5


\
 
 \ /
  Last update: 2009-06-06 11:25    [W:0.028 / U:4.972 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site