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Major rewrite of DMA mapping code to reduce code duplication

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and to allow some debug and enhancements that will be easier
soon.


git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@679 d57e44dd-8a1f-0410-8b47-8ef2f437770f
This commit is contained in:
Dotan Barak
2009-02-23 00:13:25 +00:00
parent 3f355da360
commit 6880b800ef
11 changed files with 1076 additions and 2015 deletions
Download Patch File Download Diff File Expand all files Collapse all files
qla_isp/linux/isp_linux.h
+22 -9
View File
@@ -1,4 +1,4 @@
/* $Id: isp_linux.h,v 1.168 2009/01/24 17:55:55 mjacob Exp $ */
/* $Id: isp_linux.h,v 1.169 2009/02/13 23:58:38 mjacob Exp $ */
/*
* Copyright (c) 1997-2008 by Matthew Jacob
* All rights reserved.
@@ -331,11 +331,10 @@ struct isposinfo {
wait_queue_head_t mboxwq;
struct semaphore mbox_c_sem;
spinlock_t slock;
unsigned volatile int
: 20,
uint32_t
dogcnt : 5,
isopen : 1,
: 1,
is_64bit_dma : 1,
dogactive : 1,
mboxcmd_done : 1,
mbintsok : 1,
@@ -413,10 +412,6 @@ struct isposinfo {
* Required Macros/Defines
*/
#if defined(CONFIG_HIGHMEM64G) || defined(CONFIG_X86_64) /* BOGUS */
#define ISP_DAC_SUPPORTED 1
#endif
#define ISP_FC_SCRLEN 0x1000
#define ISP_MEMZERO(b, a) memset(b, 0, a)
@@ -477,7 +472,8 @@ struct isposinfo {
#define XS_T Scsi_Cmnd
#define XS_DMA_ADDR_T dma_addr_t
#define XS_GET_DMA64_SEG isp_get_dma64_seg
#define XS_GET_DMA_SEG isp_get_dma_seg
#define XS_HOST(Cmnd) Cmnd->device->host
#define XS_CHANNEL(Cmnd) (Cmnd)->device->channel
#define XS_TGT(Cmnd) (Cmnd)->device->id
@@ -913,6 +909,23 @@ isp_kzalloc(size_t size, int flags)
#define COPYIN(uarg, karg, amt) copy_from_user(karg, uarg, amt)
#define COPYOUT(karg, uarg, amt) copy_to_user(uarg, karg, amt)
static __inline void
isp_get_dma64_seg(ispds64_t *dsp, struct scatterlist *sg, uint32_t sgidx)
{
sg += sgidx;
dsp->ds_base = DMA_LO32(sg_dma_address(sg));
dsp->ds_basehi = DMA_HI32(sg_dma_address(sg));
dsp->ds_count = sg_dma_len(sg);
}
static __inline void
isp_get_dma_seg(ispds_t *dsp, struct scatterlist *sg, uint32_t sgidx)
{
sg += sgidx;
dsp->ds_base = sg_dma_address(sg);
dsp->ds_count = sg_dma_len(sg);
}
/*
* Common inline functions
*/