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linux-2.6/drivers/scsi/tmscsim.c

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Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
/************************************************************************
* FILE NAME : TMSCSIM.C *
* BY : C.L. Huang, ching@tekram.com.tw *
* Description: Device Driver for Tekram DC-390(T) PCI SCSI *
* Bus Master Host Adapter *
* (C)Copyright 1995-1996 Tekram Technology Co., Ltd. *
************************************************************************
* (C) Copyright: put under GNU GPL in 10/96 *
* (see Documentation/scsi/tmscsim.txt) *
************************************************************************
* $Id: tmscsim.c,v 2.60.2.30 2000/12/20 01:07:12 garloff Exp $ *
* Enhancements and bugfixes by *
* Kurt Garloff <kurt@garloff.de> <garloff@suse.de> *
************************************************************************
* HISTORY: *
* *
* REV# DATE NAME DESCRIPTION *
* 1.00 96/04/24 CLH First release *
* 1.01 96/06/12 CLH Fixed bug of Media Change for Removable *
* Device, scan all LUN. Support Pre2.0.10 *
* 1.02 96/06/18 CLH Fixed bug of Command timeout ... *
* 1.03 96/09/25 KG Added tmscsim_proc_info() *
* 1.04 96/10/11 CLH Updating for support KV 2.0.x *
* 1.05 96/10/18 KG Fixed bug in DC390_abort(null ptr deref)*
* 1.06 96/10/25 KG Fixed module support *
* 1.07 96/11/09 KG Fixed tmscsim_proc_info() *
* 1.08 96/11/18 KG Fixed null ptr in DC390_Disconnect() *
* 1.09 96/11/30 KG Added register the allocated IO space *
* 1.10 96/12/05 CLH Modified tmscsim_proc_info(), and reset *
* pending interrupt in DC390_detect() *
* 1.11 97/02/05 KG/CLH Fixeds problem with partitions greater *
* than 1GB *
* 1.12 98/02/15 MJ Rewritten PCI probing *
* 1.13 98/04/08 KG Support for non DC390, __initfunc decls,*
* changed max devs from 10 to 16 *
* 1.14a 98/05/05 KG Dynamic DCB allocation, add-single-dev *
* for LUNs if LUN_SCAN (BIOS) not set *
* runtime config using /proc interface *
* 1.14b 98/05/06 KG eliminated cli (); sti (); spinlocks *
* 1.14c 98/05/07 KG 2.0.x compatibility *
* 1.20a 98/05/07 KG changed names of funcs to be consistent *
* DC390_ (entry points), dc390_ (internal)*
* reworked locking *
* 1.20b 98/05/12 KG bugs: version, kfree, _ctmp *
* debug output *
* 1.20c 98/05/12 KG bugs: kfree, parsing, EEpromDefaults *
* 1.20d 98/05/14 KG bugs: list linkage, clear flag after *
* reset on startup, code cleanup *
* 1.20e 98/05/15 KG spinlock comments, name space cleanup *
* pLastDCB now part of ACB structure *
* added stats, timeout for 2.1, TagQ bug *
* RESET and INQUIRY interface commands *
* 1.20f 98/05/18 KG spinlocks fixes, max_lun fix, free DCBs *
* for missing LUNs, pending int *
* 1.20g 98/05/19 KG Clean up: Avoid short *
* 1.20h 98/05/21 KG Remove AdaptSCSIID, max_lun ... *
* 1.20i 98/05/21 KG Aiiie: Bug with TagQMask *
* 1.20j 98/05/24 KG Handle STAT_BUSY, handle pACB->pLinkDCB *
* == 0 in remove_dev and DoingSRB_Done *
* 1.20k 98/05/25 KG DMA_INT (experimental) *
* 1.20l 98/05/27 KG remove DMA_INT; DMA_IDLE cmds added; *
* 1.20m 98/06/10 KG glitch configurable; made some global *
* vars part of ACB; use DC390_readX *
* 1.20n 98/06/11 KG startup params *
* 1.20o 98/06/15 KG added TagMaxNum to boot/module params *
* Device Nr -> Idx, TagMaxNum power of 2 *
* 1.20p 98/06/17 KG Docu updates. Reset depends on settings *
* pci_set_master added; 2.0.xx: pcibios_* *
* used instead of MechNum things ... *
* 1.20q 98/06/23 KG Changed defaults. Added debug code for *
* removable media and fixed it. TagMaxNum *
* fixed for DC390. Locking: ACB, DRV for *
* better IRQ sharing. Spelling: Queueing *
* Parsing and glitch_cfg changes. Display *
* real SyncSpeed value. Made DisConn *
* functional (!) *
* 1.20r 98/06/30 KG Debug macros, allow disabling DsCn, set *
* BIT4 in CtrlR4, EN_PAGE_INT, 2.0 module *
* param -1 fixed. *
* 1.20s 98/08/20 KG Debug info on abort(), try to check PCI,*
* phys_to_bus instead of phys_to_virt, *
* fixed sel. process, fixed locking, *
* added MODULE_XXX infos, changed IRQ *
* request flags, disable DMA_INT *
* 1.20t 98/09/07 KG TagQ report fixed; Write Erase DMA Stat;*
* initfunc -> __init; better abort; *
* Timeout for XFER_DONE & BLAST_COMPLETE; *
* Allow up to 33 commands being processed *
* 2.0a 98/10/14 KG Max Cmnds back to 17. DMA_Stat clearing *
* all flags. Clear within while() loops *
* in DataIn_0/Out_0. Null ptr in dumpinfo *
* for pSRB==0. Better locking during init.*
* bios_param() now respects part. table. *
* 2.0b 98/10/24 KG Docu fixes. Timeout Msg in DMA Blast. *
* Disallow illegal idx in INQUIRY/REMOVE *
* 2.0c 98/11/19 KG Cleaned up detect/init for SMP boxes, *
* Write Erase DMA (1.20t) caused problems *
* 2.0d 98/12/25 KG Christmas release ;-) Message handling *
* completely reworked. Handle target ini- *
* tiated SDTR correctly. *
* 2.0d1 99/01/25 KG Try to handle RESTORE_PTR *
* 2.0d2 99/02/08 KG Check for failure of kmalloc, correct *
* inclusion of scsicam.h, DelayReset *
* 2.0d3 99/05/31 KG DRIVER_OK -> DID_OK, DID_NO_CONNECT, *
* detect Target mode and warn. *
* pcmd->result handling cleaned up. *
* 2.0d4 99/06/01 KG Cleaned selection process. Found bug *
* which prevented more than 16 tags. Now: *
* 24. SDTR cleanup. Cleaner multi-LUN *
* handling. Don't modify ControlRegs/FIFO *
* when connected. *
* 2.0d5 99/06/01 KG Clear DevID, Fix INQUIRY after cfg chg. *
* 2.0d6 99/06/02 KG Added ADD special command to allow cfg. *
* before detection. Reset SYNC_NEGO_DONE *
* after a bus reset. *
* 2.0d7 99/06/03 KG Fixed bugs wrt add,remove commands *
* 2.0d8 99/06/04 KG Removed copying of cmnd into CmdBlock. *
* Fixed Oops in _release(). *
* 2.0d9 99/06/06 KG Also tag queue INQUIRY, T_U_R, ... *
* Allow arb. no. of Tagged Cmnds. Max 32 *
* 2.0d1099/06/20 KG TagMaxNo changes now honoured! Queueing *
* clearified (renamed ..) TagMask handling*
* cleaned. *
* 2.0d1199/06/28 KG cmd->result now identical to 2.0d2 *
* 2.0d1299/07/04 KG Changed order of processing in IRQ *
* 2.0d1399/07/05 KG Don't update DCB fields if removed *
* 2.0d1499/07/05 KG remove_dev: Move kfree() to the end *
* 2.0d1599/07/12 KG use_new_eh_code: 0, ULONG -> UINT where *
* appropriate *
* 2.0d1699/07/13 KG Reenable StartSCSI interrupt, Retry msg *
* 2.0d1799/07/15 KG Remove debug msg. Disable recfg. when *
* there are queued cmnds *
* 2.0d1899/07/18 KG Selection timeout: Don't requeue *
* 2.0d1999/07/18 KG Abort: Only call scsi_done if dequeued *
* 2.0d2099/07/19 KG Rst_Detect: DoingSRB_Done *
* 2.0d2199/08/15 KG dev_id for request/free_irq, cmnd[0] for*
* RETRY, SRBdone does DID_ABORT for the *
* cmd passed by DC390_reset() *
* 2.0d2299/08/25 KG dev_id fixed. can_queue: 42 *
* 2.0d2399/08/25 KG Removed some debugging code. dev_id *
* now is set to pACB. Use u8,u16,u32. *
* 2.0d2499/11/14 KG Unreg. I/O if failed IRQ alloc. Call *
* done () w/ DID_BAD_TARGET in case of *
* missing DCB. We are old EH!! *
* 2.0d2500/01/15 KG 2.3.3x compat from Andreas Schultz *
* set unique_id. Disable RETRY message. *
* 2.0d2600/01/29 KG Go to new EH. *
* 2.0d2700/01/31 KG ... but maintain 2.0 compat. *
* and fix DCB freeing *
* 2.0d2800/02/14 KG Queue statistics fixed, dump special cmd*
* Waiting_Timer for failed StartSCSI *
* New EH: Don't return cmnds to ML on RST *
* Use old EH (don't have new EH fns yet) *
* Reset: Unlock, but refuse to queue *
* 2.3 __setup function *
* 2.0e 00/05/22 KG Return residual for 2.3 *
* 2.0e1 00/05/25 KG Compile fixes for 2.3.99 *
* 2.0e2 00/05/27 KG Jeff Garzik's pci_enable_device() *
* 2.0e3 00/09/29 KG Some 2.4 changes. Don't try Sync Nego *
* before INQUIRY has reported ability. *
* Recognise INQUIRY as scanning command. *
* 2.0e4 00/10/13 KG Allow compilation into 2.4 kernel *
* 2.0e5 00/11/17 KG Store Inq.flags in DCB *
* 2.0e6 00/11/22 KG 2.4 init function (Thx to O.Schumann) *
* 2.4 PCI device table (Thx to A.Richter) *
* 2.0e7 00/11/28 KG Allow overriding of BIOS settings *
* 2.0f 00/12/20 KG Handle failed INQUIRYs during scan *
* 2.1a 03/11/29 GL, KG Initial fixing for 2.6. Convert to *
* use the current PCI-mapping API, update *
* command-queuing. *
* 2.1b 04/04/13 GL Fix for 64-bit platforms *
* 2.1b1 04/01/31 GL (applied 05.04) Remove internal *
* command-queuing. *
* 2.1b2 04/02/01 CH (applied 05.04) Fix error-handling *
* 2.1c 04/05/23 GL Update to use the new pci_driver API, *
* some scsi EH updates, more cleanup. *
* 2.1d 04/05/27 GL Moved setting of scan_devices to *
* slave_alloc/_configure/_destroy, as *
* suggested by CH. *
***********************************************************************/
/* DEBUG options */
//#define DC390_DEBUG0
//#define DC390_DEBUG1
//#define DC390_DCBDEBUG
//#define DC390_PARSEDEBUG
//#define DC390_REMOVABLEDEBUG
//#define DC390_LOCKDEBUG
//#define NOP do{}while(0)
#define C_NOP
/* Debug definitions */
#ifdef DC390_DEBUG0
# define DEBUG0(x) x
#else
# define DEBUG0(x) C_NOP
#endif
#ifdef DC390_DEBUG1
# define DEBUG1(x) x
#else
# define DEBUG1(x) C_NOP
#endif
#ifdef DC390_DCBDEBUG
# define DCBDEBUG(x) x
#else
# define DCBDEBUG(x) C_NOP
#endif
#ifdef DC390_PARSEDEBUG
# define PARSEDEBUG(x) x
#else
# define PARSEDEBUG(x) C_NOP
#endif
#ifdef DC390_REMOVABLEDEBUG
# define REMOVABLEDEBUG(x) x
#else
# define REMOVABLEDEBUG(x) C_NOP
#endif
#define DCBDEBUG1(x) C_NOP
#include <linux/module.h>
#include <linux/delay.h>
#include <linux/signal.h>
#include <linux/errno.h>
#include <linux/kernel.h>
#include <linux/ioport.h>
#include <linux/pci.h>
#include <linux/proc_fs.h>
#include <linux/string.h>
#include <linux/mm.h>
#include <linux/blkdev.h>
#include <linux/timer.h>
#include <linux/interrupt.h>
#include <linux/init.h>
#include <linux/spinlock.h>
include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h percpu.h is included by sched.h and module.h and thus ends up being included when building most .c files. percpu.h includes slab.h which in turn includes gfp.h making everything defined by the two files universally available and complicating inclusion dependencies. percpu.h -> slab.h dependency is about to be removed. Prepare for this change by updating users of gfp and slab facilities include those headers directly instead of assuming availability. As this conversion needs to touch large number of source files, the following script is used as the basis of conversion. http://userweb.kernel.org/~tj/misc/slabh-sweep.py The script does the followings. * Scan files for gfp and slab usages and update includes such that only the necessary includes are there. ie. if only gfp is used, gfp.h, if slab is used, slab.h. * When the script inserts a new include, it looks at the include blocks and try to put the new include such that its order conforms to its surrounding. It's put in the include block which contains core kernel includes, in the same order that the rest are ordered - alphabetical, Christmas tree, rev-Xmas-tree or at the end if there doesn't seem to be any matching order. * If the script can't find a place to put a new include (mostly because the file doesn't have fitting include block), it prints out an error message indicating which .h file needs to be added to the file. The conversion was done in the following steps. 1. The initial automatic conversion of all .c files updated slightly over 4000 files, deleting around 700 includes and adding ~480 gfp.h and ~3000 slab.h inclusions. The script emitted errors for ~400 files. 2. Each error was manually checked. Some didn't need the inclusion, some needed manual addition while adding it to implementation .h or embedding .c file was more appropriate for others. This step added inclusions to around 150 files. 3. The script was run again and the output was compared to the edits from #2 to make sure no file was left behind. 4. Several build tests were done and a couple of problems were fixed. e.g. lib/decompress_*.c used malloc/free() wrappers around slab APIs requiring slab.h to be added manually. 5. The script was run on all .h files but without automatically editing them as sprinkling gfp.h and slab.h inclusions around .h files could easily lead to inclusion dependency hell. Most gfp.h inclusion directives were ignored as stuff from gfp.h was usually wildly available and often used in preprocessor macros. Each slab.h inclusion directive was examined and added manually as necessary. 6. percpu.h was updated not to include slab.h. 7. Build test were done on the following configurations and failures were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my distributed build env didn't work with gcov compiles) and a few more options had to be turned off depending on archs to make things build (like ipr on powerpc/64 which failed due to missing writeq). * x86 and x86_64 UP and SMP allmodconfig and a custom test config. * powerpc and powerpc64 SMP allmodconfig * sparc and sparc64 SMP allmodconfig * ia64 SMP allmodconfig * s390 SMP allmodconfig * alpha SMP allmodconfig * um on x86_64 SMP allmodconfig 8. percpu.h modifications were reverted so that it could be applied as a separate patch and serve as bisection point. Given the fact that I had only a couple of failures from tests on step 6, I'm fairly confident about the coverage of this conversion patch. If there is a breakage, it's likely to be something in one of the arch headers which should be easily discoverable easily on most builds of the specific arch. Signed-off-by: Tejun Heo <tj@kernel.org> Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
2010-03-24 08:04:11 +00:00
#include <linux/slab.h>
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
#include <asm/io.h>
#include <scsi/scsi.h>
#include <scsi/scsi_cmnd.h>
#include <scsi/scsi_device.h>
#include <scsi/scsi_host.h>
#include <scsi/scsicam.h>
#include <scsi/scsi_tcq.h>
#define DC390_BANNER "Tekram DC390/AM53C974"
#define DC390_VERSION "2.1d 2004-05-27"
#define PCI_DEVICE_ID_AMD53C974 PCI_DEVICE_ID_AMD_SCSI
#include "tmscsim.h"
static void dc390_DataOut_0( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus);
static void dc390_DataIn_0( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus);
static void dc390_Command_0( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus);
static void dc390_Status_0( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus);
static void dc390_MsgOut_0( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus);
static void dc390_MsgIn_0( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus);
static void dc390_DataOutPhase( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus);
static void dc390_DataInPhase( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus);
static void dc390_CommandPhase( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus);
static void dc390_StatusPhase( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus);
static void dc390_MsgOutPhase( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus);
static void dc390_MsgInPhase( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus);
static void dc390_Nop_0( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus);
static void dc390_Nop_1( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus);
static void dc390_SetXferRate( struct dc390_acb* pACB, struct dc390_dcb* pDCB );
static void dc390_Disconnect( struct dc390_acb* pACB );
static void dc390_Reselect( struct dc390_acb* pACB );
static void dc390_SRBdone( struct dc390_acb* pACB, struct dc390_dcb* pDCB, struct dc390_srb* pSRB );
static void dc390_ScsiRstDetect( struct dc390_acb* pACB );
static void dc390_EnableMsgOut_Abort(struct dc390_acb*, struct dc390_srb*);
static void dc390_dumpinfo(struct dc390_acb* pACB, struct dc390_dcb* pDCB, struct dc390_srb* pSRB);
static void dc390_ResetDevParam(struct dc390_acb* pACB);
static u32 dc390_laststatus = 0;
static u8 dc390_adapterCnt = 0;
[SCSI] enable clustering for tmscsim following an email from John Adams <johna@onevista.com> to me with a patch to enable tmscsim to use blocks up to 1MB and a discussion on linux-scsi, below is a patch to enable clustering for tmscsim. I made it switchable with a module parameter, with default "enable" - in case somebody gets problems with it. Unfortunately, I was not able to check if this alone lets you use any bigger blocks with a tape, as my tape seems to only support 1 block size - only "mt setblk 1" is successful, any other value fails. OTOH, testing on a P-133 showed that enabling clustering alone improves throughput by 10% and reduces CPU load by another 10%, so, seems a worthy thing to do. As for setting max_sectors, that might become a separate patch... Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2006-10-01 10:00:47 +00:00
static int disable_clustering;
module_param(disable_clustering, int, S_IRUGO);
MODULE_PARM_DESC(disable_clustering, "If you experience problems with your devices, try setting to 1");
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
/* Startup values, to be overriden on the commandline */
static int tmscsim[] = {-2, -2, -2, -2, -2, -2};
module_param_array(tmscsim, int, NULL, 0);
MODULE_PARM_DESC(tmscsim, "Host SCSI ID, Speed (0=10MHz), Device Flags, Adapter Flags, Max Tags (log2(tags)-1), DelayReset (s)");
MODULE_AUTHOR("C.L. Huang / Kurt Garloff");
MODULE_DESCRIPTION("SCSI host adapter driver for Tekram DC390 and other AMD53C974A based PCI SCSI adapters");
MODULE_LICENSE("GPL");
MODULE_SUPPORTED_DEVICE("sd,sr,sg,st");
static void *dc390_phase0[]={
dc390_DataOut_0,
dc390_DataIn_0,
dc390_Command_0,
dc390_Status_0,
dc390_Nop_0,
dc390_Nop_0,
dc390_MsgOut_0,
dc390_MsgIn_0,
dc390_Nop_1
};
static void *dc390_phase1[]={
dc390_DataOutPhase,
dc390_DataInPhase,
dc390_CommandPhase,
dc390_StatusPhase,
dc390_Nop_0,
dc390_Nop_0,
dc390_MsgOutPhase,
dc390_MsgInPhase,
dc390_Nop_1
};
#ifdef DC390_DEBUG1
static char* dc390_p0_str[] = {
"dc390_DataOut_0",
"dc390_DataIn_0",
"dc390_Command_0",
"dc390_Status_0",
"dc390_Nop_0",
"dc390_Nop_0",
"dc390_MsgOut_0",
"dc390_MsgIn_0",
"dc390_Nop_1"
};
static char* dc390_p1_str[] = {
"dc390_DataOutPhase",
"dc390_DataInPhase",
"dc390_CommandPhase",
"dc390_StatusPhase",
"dc390_Nop_0",
"dc390_Nop_0",
"dc390_MsgOutPhase",
"dc390_MsgInPhase",
"dc390_Nop_1"
};
#endif
static u8 dc390_eepromBuf[MAX_ADAPTER_NUM][EE_LEN];
static u8 dc390_clock_period1[] = {4, 5, 6, 7, 8, 10, 13, 20};
static u8 dc390_clock_speed[] = {100,80,67,57,50, 40, 31, 20};
/***********************************************************************
* Functions for the management of the internal structures
* (DCBs, SRBs, Queueing)
*
**********************************************************************/
[SCSI] tmscsim: Remove the last bus_to_virt() Dynamically map the buffer for PIO for the residue byte. Signed-off-by: G. Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-05-04 21:00:49 +00:00
static void inline dc390_start_segment(struct dc390_srb* pSRB)
{
struct scatterlist *psgl = pSRB->pSegmentList;
/* start new sg segment */
pSRB->SGBusAddr = sg_dma_address(psgl);
pSRB->SGToBeXferLen = sg_dma_len(psgl);
}
static unsigned long inline dc390_advance_segment(struct dc390_srb* pSRB, u32 residue)
{
unsigned long xfer = pSRB->SGToBeXferLen - residue;
/* xfer more bytes transferred */
pSRB->SGBusAddr += xfer;
pSRB->TotalXferredLen += xfer;
pSRB->SGToBeXferLen = residue;
return xfer;
}
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
static struct dc390_dcb __inline__ *dc390_findDCB ( struct dc390_acb* pACB, u8 id, u8 lun)
{
struct dc390_dcb* pDCB = pACB->pLinkDCB; if (!pDCB) return NULL;
while (pDCB->TargetID != id || pDCB->TargetLUN != lun)
{
pDCB = pDCB->pNextDCB;
if (pDCB == pACB->pLinkDCB)
return NULL;
}
DCBDEBUG1( printk (KERN_DEBUG "DCB %p (%02x,%02x) found.\n", \
pDCB, pDCB->TargetID, pDCB->TargetLUN));
return pDCB;
}
/* Insert SRB oin top of free list */
static __inline__ void dc390_Free_insert (struct dc390_acb* pACB, struct dc390_srb* pSRB)
{
DEBUG0(printk ("DC390: Free SRB %p\n", pSRB));
pSRB->pNextSRB = pACB->pFreeSRB;
pACB->pFreeSRB = pSRB;
}
static __inline__ void dc390_Going_append (struct dc390_dcb* pDCB, struct dc390_srb* pSRB)
{
pDCB->GoingSRBCnt++;
DEBUG0(printk("DC390: Append SRB %p to Going\n", pSRB));
/* Append to the list of Going commands */
if( pDCB->pGoingSRB )
pDCB->pGoingLast->pNextSRB = pSRB;
else
pDCB->pGoingSRB = pSRB;
pDCB->pGoingLast = pSRB;
/* No next one in sent list */
pSRB->pNextSRB = NULL;
}
static __inline__ void dc390_Going_remove (struct dc390_dcb* pDCB, struct dc390_srb* pSRB)
{
DEBUG0(printk("DC390: Remove SRB %p from Going\n", pSRB));
if (pSRB == pDCB->pGoingSRB)
pDCB->pGoingSRB = pSRB->pNextSRB;
else
{
struct dc390_srb* psrb = pDCB->pGoingSRB;
while (psrb && psrb->pNextSRB != pSRB)
psrb = psrb->pNextSRB;
if (!psrb)
{ printk (KERN_ERR "DC390: Remove non-ex. SRB %p from Going!\n", pSRB); return; }
psrb->pNextSRB = pSRB->pNextSRB;
if (pSRB == pDCB->pGoingLast)
pDCB->pGoingLast = psrb;
}
pDCB->GoingSRBCnt--;
}
static struct scatterlist* dc390_sg_build_single(struct scatterlist *sg, void *addr, unsigned int length)
{
[SG] Update drivers to use sg helpers Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-10-22 19:19:53 +00:00
sg_init_one(sg, addr, length);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
return sg;
}
/* Create pci mapping */
static int dc390_pci_map (struct dc390_srb* pSRB)
{
int error = 0;
struct scsi_cmnd *pcmd = pSRB->pcmd;
struct pci_dev *pdev = pSRB->pSRBDCB->pDCBACB->pdev;
dc390_cmd_scp_t* cmdp = ((dc390_cmd_scp_t*)(&pcmd->SCp));
/* Map sense buffer */
if (pSRB->SRBFlag & AUTO_REQSENSE) {
[SCSI] replace sizeof sense_buffer with SCSI_SENSE_BUFFERSIZE This replaces sizeof sense_buffer with SCSI_SENSE_BUFFERSIZE in several LLDs. It's a preparation for the future changes to remove sense_buffer array in scsi_cmnd structure. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-13 06:46:13 +00:00
pSRB->pSegmentList = dc390_sg_build_single(&pSRB->Segmentx, pcmd->sense_buffer, SCSI_SENSE_BUFFERSIZE);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
pSRB->SGcount = pci_map_sg(pdev, pSRB->pSegmentList, 1,
DMA_FROM_DEVICE);
cmdp->saved_dma_handle = sg_dma_address(pSRB->pSegmentList);
/* TODO: error handling */
if (pSRB->SGcount != 1)
error = 1;
[SCSI] replace __FUNCTION__ with __func__ [jejb: fixed up a ton of missed conversions. All of you are on notice this has happened, driver trees will now need to be rebased] Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Cc: SCSI List <linux-scsi@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-07-04 06:47:27 +00:00
DEBUG1(printk("%s(): Mapped sense buffer %p at %x\n", __func__, pcmd->sense_buffer, cmdp->saved_dma_handle));
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
/* Map SG list */
[SCSI] tmscsim: convert to use the data buffer accessors - remove the unnecessary map_single path. - convert to use the new accessors for the sg lists and the parameters. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-05-25 17:41:54 +00:00
} else if (scsi_sg_count(pcmd)) {
int nseg;
nseg = scsi_dma_map(pcmd);
pSRB->pSegmentList = scsi_sglist(pcmd);
pSRB->SGcount = nseg;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
/* TODO: error handling */
[SCSI] tmscsim: convert to use the data buffer accessors - remove the unnecessary map_single path. - convert to use the new accessors for the sg lists and the parameters. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-05-25 17:41:54 +00:00
if (nseg < 0)
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
error = 1;
DEBUG1(printk("%s(): Mapped SG %p with %d (%d) elements\n",\
[SCSI] replace __FUNCTION__ with __func__ [jejb: fixed up a ton of missed conversions. All of you are on notice this has happened, driver trees will now need to be rebased] Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Cc: SCSI List <linux-scsi@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-07-04 06:47:27 +00:00
__func__, scsi_sglist(pcmd), nseg, scsi_sg_count(pcmd)));
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
/* Map single segment */
[SCSI] tmscsim: convert to use the data buffer accessors - remove the unnecessary map_single path. - convert to use the new accessors for the sg lists and the parameters. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-05-25 17:41:54 +00:00
} else
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
pSRB->SGcount = 0;
return error;
}
/* Remove pci mapping */
static void dc390_pci_unmap (struct dc390_srb* pSRB)
{
struct scsi_cmnd *pcmd = pSRB->pcmd;
struct pci_dev *pdev = pSRB->pSRBDCB->pDCBACB->pdev;
DEBUG1(dc390_cmd_scp_t* cmdp = ((dc390_cmd_scp_t*)(&pcmd->SCp)));
if (pSRB->SRBFlag) {
pci_unmap_sg(pdev, &pSRB->Segmentx, 1, DMA_FROM_DEVICE);
[SCSI] replace __FUNCTION__ with __func__ [jejb: fixed up a ton of missed conversions. All of you are on notice this has happened, driver trees will now need to be rebased] Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Cc: SCSI List <linux-scsi@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-07-04 06:47:27 +00:00
DEBUG1(printk("%s(): Unmapped sense buffer at %x\n", __func__, cmdp->saved_dma_handle));
[SCSI] tmscsim: convert to use the data buffer accessors - remove the unnecessary map_single path. - convert to use the new accessors for the sg lists and the parameters. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-05-25 17:41:54 +00:00
} else {
scsi_dma_unmap(pcmd);
DEBUG1(printk("%s(): Unmapped SG at %p with %d elements\n",
[SCSI] replace __FUNCTION__ with __func__ [jejb: fixed up a ton of missed conversions. All of you are on notice this has happened, driver trees will now need to be rebased] Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Cc: SCSI List <linux-scsi@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-07-04 06:47:27 +00:00
__func__, scsi_sglist(pcmd), scsi_sg_count(pcmd)));
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
}
}
static void __inline__
dc390_freetag (struct dc390_dcb* pDCB, struct dc390_srb* pSRB)
{
if (pSRB->TagNumber != SCSI_NO_TAG) {
pDCB->TagMask &= ~(1 << pSRB->TagNumber); /* free tag mask */
pSRB->TagNumber = SCSI_NO_TAG;
}
}
static int
dc390_StartSCSI( struct dc390_acb* pACB, struct dc390_dcb* pDCB, struct dc390_srb* pSRB )
{
struct scsi_cmnd *scmd = pSRB->pcmd;
struct scsi_device *sdev = scmd->device;
u8 cmd, disc_allowed, try_sync_nego;
char tag[2];
pSRB->ScsiPhase = SCSI_NOP0;
if (pACB->Connected)
{
// Should not happen normally
printk (KERN_WARNING "DC390: Can't select when connected! (%08x,%02x)\n",
pSRB->SRBState, pSRB->SRBFlag);
pSRB->SRBState = SRB_READY;
pACB->SelConn++;
return 1;
}
if (time_before (jiffies, pACB->pScsiHost->last_reset))
{
DEBUG0(printk ("DC390: We were just reset and don't accept commands yet!\n"));
return 1;
}
/* KG: Moved pci mapping here */
dc390_pci_map(pSRB);
/* TODO: error handling */
DC390_write8 (Scsi_Dest_ID, pDCB->TargetID);
DC390_write8 (Sync_Period, pDCB->SyncPeriod);
DC390_write8 (Sync_Offset, pDCB->SyncOffset);
DC390_write8 (CtrlReg1, pDCB->CtrlR1);
DC390_write8 (CtrlReg3, pDCB->CtrlR3);
DC390_write8 (CtrlReg4, pDCB->CtrlR4);
DC390_write8 (ScsiCmd, CLEAR_FIFO_CMD); /* Flush FIFO */
DEBUG1(printk (KERN_INFO "DC390: Start SCSI command: %02x (Sync:%02x)\n",\
scmd->cmnd[0], pDCB->SyncMode));
/* Don't disconnect on AUTO_REQSENSE, cause it might be an
* Contingent Allegiance Condition (6.6), where no tags should be used.
* All other have to be allowed to disconnect to prevent Incorrect
* Initiator Connection (6.8.2/6.5.2) */
/* Changed KG, 99/06/06 */
if (! (pSRB->SRBFlag & AUTO_REQSENSE))
disc_allowed = pDCB->DevMode & EN_DISCONNECT_;
else
disc_allowed = 0;
if ((pDCB->SyncMode & SYNC_ENABLE) && pDCB->TargetLUN == 0 && sdev->sdtr &&
(((scmd->cmnd[0] == REQUEST_SENSE || (pSRB->SRBFlag & AUTO_REQSENSE)) &&
!(pDCB->SyncMode & SYNC_NEGO_DONE)) || scmd->cmnd[0] == INQUIRY))
try_sync_nego = 1;
else
try_sync_nego = 0;
pSRB->MsgCnt = 0;
cmd = SEL_W_ATN;
DC390_write8 (ScsiFifo, IDENTIFY(disc_allowed, pDCB->TargetLUN));
/* Change 99/05/31: Don't use tags when not disconnecting (BUSY) */
if ((pDCB->SyncMode & EN_TAG_QUEUEING) && disc_allowed && scsi_populate_tag_msg(scmd, tag)) {
DC390_write8(ScsiFifo, tag[0]);
pDCB->TagMask |= 1 << tag[1];
pSRB->TagNumber = tag[1];
DC390_write8(ScsiFifo, tag[1]);
[SCSI] remove cmd->serial_number litter Stop using cmd->serial_number in printks. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-04-04 13:42:14 +00:00
DEBUG1(printk(KERN_INFO "DC390: Select w/DisCn for SRB %p, block tag %02x\n", pSRB, tag[1]));
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
cmd = SEL_W_ATN3;
} else {
/* No TagQ */
//no_tag:
[SCSI] remove cmd->serial_number litter Stop using cmd->serial_number in printks. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-04-04 13:42:14 +00:00
DEBUG1(printk(KERN_INFO "DC390: Select w%s/DisCn for SRB %p, No TagQ\n", disc_allowed ? "" : "o", pSRB));
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
}
pSRB->SRBState = SRB_START_;
if (try_sync_nego)
{
u8 Sync_Off = pDCB->SyncOffset;
DEBUG0(printk (KERN_INFO "DC390: NEW Sync Nego code triggered (%i %i)\n", pDCB->TargetID, pDCB->TargetLUN));
pSRB->MsgOutBuf[0] = EXTENDED_MESSAGE;
pSRB->MsgOutBuf[1] = 3;
pSRB->MsgOutBuf[2] = EXTENDED_SDTR;
pSRB->MsgOutBuf[3] = pDCB->NegoPeriod;
if (!(Sync_Off & 0x0f)) Sync_Off = SYNC_NEGO_OFFSET;
pSRB->MsgOutBuf[4] = Sync_Off;
pSRB->MsgCnt = 5;
//pSRB->SRBState = SRB_MSGOUT_;
pSRB->SRBState |= DO_SYNC_NEGO;
cmd = SEL_W_ATN_STOP;
}
/* Command is written in CommandPhase, if SEL_W_ATN_STOP ... */
if (cmd != SEL_W_ATN_STOP)
{
if( pSRB->SRBFlag & AUTO_REQSENSE )
{
DC390_write8 (ScsiFifo, REQUEST_SENSE);
DC390_write8 (ScsiFifo, pDCB->TargetLUN << 5);
DC390_write8 (ScsiFifo, 0);
DC390_write8 (ScsiFifo, 0);
[SCSI] replace sizeof sense_buffer with SCSI_SENSE_BUFFERSIZE This replaces sizeof sense_buffer with SCSI_SENSE_BUFFERSIZE in several LLDs. It's a preparation for the future changes to remove sense_buffer array in scsi_cmnd structure. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-13 06:46:13 +00:00
DC390_write8 (ScsiFifo, SCSI_SENSE_BUFFERSIZE);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
DC390_write8 (ScsiFifo, 0);
DEBUG1(printk (KERN_DEBUG "DC390: AutoReqSense !\n"));
}
else /* write cmnd to bus */
{
u8 *ptr; u8 i;
ptr = (u8 *)scmd->cmnd;
for (i = 0; i < scmd->cmd_len; i++)
DC390_write8 (ScsiFifo, *(ptr++));
}
}
DEBUG0(if (pACB->pActiveDCB) \
printk (KERN_WARNING "DC390: ActiveDCB != 0\n"));
DEBUG0(if (pDCB->pActiveSRB) \
printk (KERN_WARNING "DC390: ActiveSRB != 0\n"));
//DC390_write8 (DMA_Cmd, DMA_IDLE_CMD);
if (DC390_read8 (Scsi_Status) & INTERRUPT)
{
dc390_freetag (pDCB, pSRB);
[SCSI] remove cmd->serial_number litter Stop using cmd->serial_number in printks. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-04-04 13:42:14 +00:00
DEBUG0(printk ("DC390: Interrupt during Start SCSI (target %02i-%02i)\n",
scmd->device->id, scmd->device->lun));
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
pSRB->SRBState = SRB_READY;
//DC390_write8 (ScsiCmd, CLEAR_FIFO_CMD);
pACB->SelLost++;
return 1;
}
DC390_write8 (ScsiCmd, cmd);
pACB->pActiveDCB = pDCB;
pDCB->pActiveSRB = pSRB;
pACB->Connected = 1;
pSRB->ScsiPhase = SCSI_NOP1;
return 0;
}
static void __inline__
dc390_InvalidCmd(struct dc390_acb* pACB)
{
if (pACB->pActiveDCB->pActiveSRB->SRBState & (SRB_START_ | SRB_MSGOUT))
DC390_write8(ScsiCmd, CLEAR_FIFO_CMD);
}
static irqreturn_t __inline__
Various drivers' irq handlers: kill dead code, needless casts - Eliminate casts to/from void* - Eliminate checks for conditions that never occur. These typically fall into two classes: 1) Checking for 'dev_id == NULL', then it is never called with NULL as an argument. 2) Checking for invalid irq number, when the only caller (the system) guarantees the irq handler is called with the proper 'irq' number argument. Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-10-06 19:00:58 +00:00
DC390_Interrupt(void *dev_id)
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
{
Various drivers' irq handlers: kill dead code, needless casts - Eliminate casts to/from void* - Eliminate checks for conditions that never occur. These typically fall into two classes: 1) Checking for 'dev_id == NULL', then it is never called with NULL as an argument. 2) Checking for invalid irq number, when the only caller (the system) guarantees the irq handler is called with the proper 'irq' number argument. Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-10-06 19:00:58 +00:00
struct dc390_acb *pACB = dev_id;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
struct dc390_dcb *pDCB;
struct dc390_srb *pSRB;
u8 sstatus=0;
u8 phase;
void (*stateV)( struct dc390_acb*, struct dc390_srb*, u8 *);
u8 istate, istatus;
sstatus = DC390_read8 (Scsi_Status);
if( !(sstatus & INTERRUPT) )
return IRQ_NONE;
DEBUG1(printk (KERN_DEBUG "sstatus=%02x,", sstatus));
//DC390_write32 (DMA_ScsiBusCtrl, WRT_ERASE_DMA_STAT | EN_INT_ON_PCI_ABORT);
//dstatus = DC390_read8 (DMA_Status);
//DC390_write32 (DMA_ScsiBusCtrl, EN_INT_ON_PCI_ABORT);
spin_lock_irq(pACB->pScsiHost->host_lock);
istate = DC390_read8 (Intern_State);
istatus = DC390_read8 (INT_Status); /* This clears Scsi_Status, Intern_State and INT_Status ! */
DEBUG1(printk (KERN_INFO "Istatus(Res,Inv,Dis,Serv,Succ,ReS,SelA,Sel)=%02x,",istatus));
dc390_laststatus &= ~0x00ffffff;
dc390_laststatus |= /* dstatus<<24 | */ sstatus<<16 | istate<<8 | istatus;
if (sstatus & ILLEGAL_OP_ERR)
{
printk ("DC390: Illegal Operation detected (%08x)!\n", dc390_laststatus);
dc390_dumpinfo (pACB, pACB->pActiveDCB, pACB->pActiveDCB->pActiveSRB);
}
else if (istatus & INVALID_CMD)
{
printk ("DC390: Invalid Command detected (%08x)!\n", dc390_laststatus);
dc390_InvalidCmd( pACB );
goto unlock;
}
if (istatus & SCSI_RESET)
{
dc390_ScsiRstDetect( pACB );
goto unlock;
}
if (istatus & DISCONNECTED)
{
dc390_Disconnect( pACB );
goto unlock;
}
if (istatus & RESELECTED)
{
dc390_Reselect( pACB );
goto unlock;
}
else if (istatus & (SELECTED | SEL_ATTENTION))
{
printk (KERN_ERR "DC390: Target mode not supported!\n");
goto unlock;
}
if (istatus & (SUCCESSFUL_OP|SERVICE_REQUEST) )
{
pDCB = pACB->pActiveDCB;
if (!pDCB)
{
printk (KERN_ERR "DC390: Suc. op/ Serv. req: pActiveDCB = 0!\n");
goto unlock;
}
pSRB = pDCB->pActiveSRB;
if( pDCB->DCBFlag & ABORT_DEV_ )
dc390_EnableMsgOut_Abort (pACB, pSRB);
phase = pSRB->ScsiPhase;
DEBUG1(printk (KERN_INFO "DC390: [%i]%s(0) (%02x)\n", phase, dc390_p0_str[phase], sstatus));
stateV = (void *) dc390_phase0[phase];
( *stateV )( pACB, pSRB, &sstatus );
pSRB->ScsiPhase = sstatus & 7;
phase = (u8) sstatus & 7;
DEBUG1(printk (KERN_INFO "DC390: [%i]%s(1) (%02x)\n", phase, dc390_p1_str[phase], sstatus));
stateV = (void *) dc390_phase1[phase];
( *stateV )( pACB, pSRB, &sstatus );
}
unlock:
spin_unlock_irq(pACB->pScsiHost->host_lock);
return IRQ_HANDLED;
}
Various drivers' irq handlers: kill dead code, needless casts - Eliminate casts to/from void* - Eliminate checks for conditions that never occur. These typically fall into two classes: 1) Checking for 'dev_id == NULL', then it is never called with NULL as an argument. 2) Checking for invalid irq number, when the only caller (the system) guarantees the irq handler is called with the proper 'irq' number argument. Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-10-06 19:00:58 +00:00
static irqreturn_t do_DC390_Interrupt(int irq, void *dev_id)
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
{
irqreturn_t ret;
DEBUG1(printk (KERN_INFO "DC390: Irq (%i) caught: ", irq));
/* Locking is done in DC390_Interrupt */
Various drivers' irq handlers: kill dead code, needless casts - Eliminate casts to/from void* - Eliminate checks for conditions that never occur. These typically fall into two classes: 1) Checking for 'dev_id == NULL', then it is never called with NULL as an argument. 2) Checking for invalid irq number, when the only caller (the system) guarantees the irq handler is called with the proper 'irq' number argument. Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-10-06 19:00:58 +00:00
ret = DC390_Interrupt(dev_id);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
DEBUG1(printk (".. IRQ returned\n"));
return ret;
}
static void
[SCSI] tmscsim: Remove the last bus_to_virt() Dynamically map the buffer for PIO for the residue byte. Signed-off-by: G. Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-05-04 21:00:49 +00:00
dc390_DataOut_0(struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus)
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
{
u8 sstatus;
[SCSI] tmscsim: Remove the last bus_to_virt() Dynamically map the buffer for PIO for the residue byte. Signed-off-by: G. Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-05-04 21:00:49 +00:00
u32 ResidCnt;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
u8 dstate = 0;
sstatus = *psstatus;
if( !(pSRB->SRBState & SRB_XFERPAD) )
{
if( sstatus & (PARITY_ERR | ILLEGAL_OP_ERR) )
pSRB->SRBStatus |= PARITY_ERROR;
if( sstatus & COUNT_2_ZERO )
{
unsigned long timeout = jiffies + HZ;
/* Function called from the ISR with the host_lock held and interrupts disabled */
if (pSRB->SGToBeXferLen)
while (time_before(jiffies, timeout) && !((dstate = DC390_read8 (DMA_Status)) & DMA_XFER_DONE)) {
spin_unlock_irq(pACB->pScsiHost->host_lock);
udelay(50);
spin_lock_irq(pACB->pScsiHost->host_lock);
}
if (!time_before(jiffies, timeout))
printk (KERN_CRIT "DC390: Deadlock in DataOut_0: DMA aborted unfinished: %06x bytes remain!!\n",
DC390_read32 (DMA_Wk_ByteCntr));
dc390_laststatus &= ~0xff000000;
dc390_laststatus |= dstate << 24;
pSRB->TotalXferredLen += pSRB->SGToBeXferLen;
pSRB->SGIndex++;
if( pSRB->SGIndex < pSRB->SGcount )
{
pSRB->pSegmentList++;
[SCSI] tmscsim: Remove the last bus_to_virt() Dynamically map the buffer for PIO for the residue byte. Signed-off-by: G. Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-05-04 21:00:49 +00:00
dc390_start_segment(pSRB);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
}
else
pSRB->SGToBeXferLen = 0;
}
else
{
[SCSI] tmscsim: Remove the last bus_to_virt() Dynamically map the buffer for PIO for the residue byte. Signed-off-by: G. Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-05-04 21:00:49 +00:00
ResidCnt = ((u32) DC390_read8 (Current_Fifo) & 0x1f) +
(((u32) DC390_read8 (CtcReg_High) << 16) |
((u32) DC390_read8 (CtcReg_Mid) << 8) |
(u32) DC390_read8 (CtcReg_Low));
dc390_advance_segment(pSRB, ResidCnt);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
}
}
if ((*psstatus & 7) != SCSI_DATA_OUT)
{
[SCSI] tmscsim: remove long dead DMA_INT DMA_INT code is disabled since 1998, remove it to prepare for further cleanup. Signed-off-by: G. Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-05-04 20:57:37 +00:00
DC390_write8 (DMA_Cmd, WRITE_DIRECTION+DMA_IDLE_CMD);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
DC390_write8 (ScsiCmd, CLEAR_FIFO_CMD);
}
}
static void
[SCSI] tmscsim: Remove the last bus_to_virt() Dynamically map the buffer for PIO for the residue byte. Signed-off-by: G. Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-05-04 21:00:49 +00:00
dc390_DataIn_0(struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus)
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
{
u8 sstatus, residual, bval;
[SCSI] tmscsim: Remove the last bus_to_virt() Dynamically map the buffer for PIO for the residue byte. Signed-off-by: G. Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-05-04 21:00:49 +00:00
u32 ResidCnt, i;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
unsigned long xferCnt;
sstatus = *psstatus;
if( !(pSRB->SRBState & SRB_XFERPAD) )
{
if( sstatus & (PARITY_ERR | ILLEGAL_OP_ERR))
pSRB->SRBStatus |= PARITY_ERROR;
if( sstatus & COUNT_2_ZERO )
{
int dstate = 0;
unsigned long timeout = jiffies + HZ;
/* Function called from the ISR with the host_lock held and interrupts disabled */
if (pSRB->SGToBeXferLen)
while (time_before(jiffies, timeout) && !((dstate = DC390_read8 (DMA_Status)) & DMA_XFER_DONE)) {
spin_unlock_irq(pACB->pScsiHost->host_lock);
udelay(50);
spin_lock_irq(pACB->pScsiHost->host_lock);
}
if (!time_before(jiffies, timeout)) {
printk (KERN_CRIT "DC390: Deadlock in DataIn_0: DMA aborted unfinished: %06x bytes remain!!\n",
DC390_read32 (DMA_Wk_ByteCntr));
printk (KERN_CRIT "DC390: DataIn_0: DMA State: %i\n", dstate);
}
dc390_laststatus &= ~0xff000000;
dc390_laststatus |= dstate << 24;
DEBUG1(ResidCnt = ((unsigned long) DC390_read8 (CtcReg_High) << 16) \
+ ((unsigned long) DC390_read8 (CtcReg_Mid) << 8) \
+ ((unsigned long) DC390_read8 (CtcReg_Low)));
[SCSI] tmscsim: remove bogus endianness conversions cpu_to_le32 endianness conversions in tmscsim.c, followed by arithmetic operations don't look correct. Besides, {in,out}[wl] already perform the necessary conversions. Further, bus addresses of request buffers are guaranteed to be (mapped) under 4G by current scsi- and block-layer defaults. This could be explicitly enforced by using blk_queue_bounce_limit(), which, however, doesn't seem to be the common practice among SCSI drivers. Signed-off-by: G. Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-05-04 20:59:40 +00:00
DEBUG1(printk (KERN_DEBUG "Count_2_Zero (ResidCnt=%u,ToBeXfer=%lu),", ResidCnt, pSRB->SGToBeXferLen));
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
[SCSI] tmscsim: remove long dead DMA_INT DMA_INT code is disabled since 1998, remove it to prepare for further cleanup. Signed-off-by: G. Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-05-04 20:57:37 +00:00
DC390_write8 (DMA_Cmd, READ_DIRECTION+DMA_IDLE_CMD);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
pSRB->TotalXferredLen += pSRB->SGToBeXferLen;
pSRB->SGIndex++;
if( pSRB->SGIndex < pSRB->SGcount )
{
pSRB->pSegmentList++;
[SCSI] tmscsim: Remove the last bus_to_virt() Dynamically map the buffer for PIO for the residue byte. Signed-off-by: G. Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-05-04 21:00:49 +00:00
dc390_start_segment(pSRB);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
}
else
pSRB->SGToBeXferLen = 0;
}
else /* phase changed */
{
residual = 0;
bval = DC390_read8 (Current_Fifo);
while( bval & 0x1f )
{
DEBUG1(printk (KERN_DEBUG "Check for residuals,"));
if( (bval & 0x1f) == 1 )
{
for(i=0; i < 0x100; i++)
{
bval = DC390_read8 (Current_Fifo);
if( !(bval & 0x1f) )
goto din_1;
else if( i == 0x0ff )
{
residual = 1; /* ;1 residual byte */
goto din_1;
}
}
}
else
bval = DC390_read8 (Current_Fifo);
}
din_1:
DC390_write8 (DMA_Cmd, READ_DIRECTION+DMA_BLAST_CMD);
for (i = 0xa000; i; i--)
{
bval = DC390_read8 (DMA_Status);
if (bval & BLAST_COMPLETE)
break;
}
/* It seems a DMA Blast abort isn't that bad ... */
if (!i) printk (KERN_ERR "DC390: DMA Blast aborted unfinished!\n");
[SCSI] tmscsim: remove long dead DMA_INT DMA_INT code is disabled since 1998, remove it to prepare for further cleanup. Signed-off-by: G. Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-05-04 20:57:37 +00:00
//DC390_write8 (DMA_Cmd, READ_DIRECTION+DMA_IDLE_CMD);
[SCSI] tmscsim: Remove the last bus_to_virt() Dynamically map the buffer for PIO for the residue byte. Signed-off-by: G. Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-05-04 21:00:49 +00:00
dc390_laststatus &= ~0xff000000;
dc390_laststatus |= bval << 24;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
DEBUG1(printk (KERN_DEBUG "Blast: Read %i times DMA_Status %02x", 0xa000-i, bval));
[SCSI] tmscsim: Remove the last bus_to_virt() Dynamically map the buffer for PIO for the residue byte. Signed-off-by: G. Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-05-04 21:00:49 +00:00
ResidCnt = (((u32) DC390_read8 (CtcReg_High) << 16) |
((u32) DC390_read8 (CtcReg_Mid) << 8)) |
(u32) DC390_read8 (CtcReg_Low);
xferCnt = dc390_advance_segment(pSRB, ResidCnt);
if (residual) {
size_t count = 1;
size_t offset = pSRB->SGBusAddr - sg_dma_address(pSRB->pSegmentList);
unsigned long flags;
u8 *ptr;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
bval = DC390_read8 (ScsiFifo); /* get one residual byte */
[SCSI] dc395x: atomic_kmap for PIO Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-09-16 17:28:01 +00:00
[SCSI] tmscsim: Remove the last bus_to_virt() Dynamically map the buffer for PIO for the residue byte. Signed-off-by: G. Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-05-04 21:00:49 +00:00
local_irq_save(flags);
ptr = scsi_kmap_atomic_sg(pSRB->pSegmentList, pSRB->SGcount, &offset, &count);
if (likely(ptr)) {
*(ptr + offset) = bval;
scsi_kunmap_atomic_sg(ptr);
[SCSI] dc395x: atomic_kmap for PIO Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-09-16 17:28:01 +00:00
}
[SCSI] tmscsim: Remove the last bus_to_virt() Dynamically map the buffer for PIO for the residue byte. Signed-off-by: G. Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-05-04 21:00:49 +00:00
local_irq_restore(flags);
WARN_ON(!ptr);
[SCSI] dc395x: atomic_kmap for PIO Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-09-16 17:28:01 +00:00
[SCSI] tmscsim: Remove the last bus_to_virt() Dynamically map the buffer for PIO for the residue byte. Signed-off-by: G. Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-05-04 21:00:49 +00:00
/* 1 more byte read */
xferCnt += dc390_advance_segment(pSRB, pSRB->SGToBeXferLen - 1);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
}
[SCSI] tmscsim: remove bogus endianness conversions cpu_to_le32 endianness conversions in tmscsim.c, followed by arithmetic operations don't look correct. Besides, {in,out}[wl] already perform the necessary conversions. Further, bus addresses of request buffers are guaranteed to be (mapped) under 4G by current scsi- and block-layer defaults. This could be explicitly enforced by using blk_queue_bounce_limit(), which, however, doesn't seem to be the common practice among SCSI drivers. Signed-off-by: G. Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-05-04 20:59:40 +00:00
DEBUG1(printk (KERN_DEBUG "Xfered: %lu, Total: %lu, Remaining: %lu\n", xferCnt,\
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
pSRB->TotalXferredLen, pSRB->SGToBeXferLen));
}
}
if ((*psstatus & 7) != SCSI_DATA_IN)
{
DC390_write8 (ScsiCmd, CLEAR_FIFO_CMD);
[SCSI] tmscsim: remove long dead DMA_INT DMA_INT code is disabled since 1998, remove it to prepare for further cleanup. Signed-off-by: G. Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-05-04 20:57:37 +00:00
DC390_write8 (DMA_Cmd, READ_DIRECTION+DMA_IDLE_CMD);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
}
}
static void
dc390_Command_0( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus)
{
}
static void
dc390_Status_0( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus)
{
pSRB->TargetStatus = DC390_read8 (ScsiFifo);
//udelay (1);
pSRB->EndMessage = DC390_read8 (ScsiFifo); /* get message */
*psstatus = SCSI_NOP0;
pSRB->SRBState = SRB_COMPLETED;
DC390_write8 (ScsiCmd, MSG_ACCEPTED_CMD);
}
static void
dc390_MsgOut_0( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus)
{
if( pSRB->SRBState & (SRB_UNEXPECT_RESEL+SRB_ABORT_SENT) )
*psstatus = SCSI_NOP0;
//DC390_write8 (DMA_Cmd, DMA_IDLE_CMD);
}
static void __inline__
dc390_reprog (struct dc390_acb* pACB, struct dc390_dcb* pDCB)
{
DC390_write8 (Sync_Period, pDCB->SyncPeriod);
DC390_write8 (Sync_Offset, pDCB->SyncOffset);
DC390_write8 (CtrlReg3, pDCB->CtrlR3);
DC390_write8 (CtrlReg4, pDCB->CtrlR4);
dc390_SetXferRate (pACB, pDCB);
}
#ifdef DC390_DEBUG0
static void
dc390_printMsg (u8 *MsgBuf, u8 len)
{
int i;
printk (" %02x", MsgBuf[0]);
for (i = 1; i < len; i++)
printk (" %02x", MsgBuf[i]);
printk ("\n");
}
#endif
#define DC390_ENABLE_MSGOUT DC390_write8 (ScsiCmd, SET_ATN_CMD)
/* reject_msg */
static void __inline__
dc390_MsgIn_reject (struct dc390_acb* pACB, struct dc390_srb* pSRB)
{
pSRB->MsgOutBuf[0] = MESSAGE_REJECT;
pSRB->MsgCnt = 1;
DC390_ENABLE_MSGOUT;
DEBUG0 (printk (KERN_INFO "DC390: Reject message\n"));
}
/* abort command */
static void
dc390_EnableMsgOut_Abort ( struct dc390_acb* pACB, struct dc390_srb* pSRB )
{
pSRB->MsgOutBuf[0] = ABORT;
pSRB->MsgCnt = 1; DC390_ENABLE_MSGOUT;
pSRB->pSRBDCB->DCBFlag &= ~ABORT_DEV_;
}
static struct dc390_srb*
dc390_MsgIn_QTag (struct dc390_acb* pACB, struct dc390_dcb* pDCB, s8 tag)
{
struct dc390_srb* pSRB = pDCB->pGoingSRB;
if (pSRB)
{
struct scsi_cmnd *scmd = scsi_find_tag(pSRB->pcmd->device, tag);
pSRB = (struct dc390_srb *)scmd->host_scribble;
if (pDCB->DCBFlag & ABORT_DEV_)
{
pSRB->SRBState = SRB_ABORT_SENT;
dc390_EnableMsgOut_Abort( pACB, pSRB );
}
if (!(pSRB->SRBState & SRB_DISCONNECT))
goto mingx0;
pDCB->pActiveSRB = pSRB;
pSRB->SRBState = SRB_DATA_XFER;
}
else
{
mingx0:
pSRB = pACB->pTmpSRB;
pSRB->SRBState = SRB_UNEXPECT_RESEL;
pDCB->pActiveSRB = pSRB;
pSRB->MsgOutBuf[0] = ABORT_TAG;
pSRB->MsgCnt = 1; DC390_ENABLE_MSGOUT;
}
return pSRB;
}
/* set async transfer mode */
static void
dc390_MsgIn_set_async (struct dc390_acb* pACB, struct dc390_srb* pSRB)
{
struct dc390_dcb* pDCB = pSRB->pSRBDCB;
if (!(pSRB->SRBState & DO_SYNC_NEGO))
printk (KERN_INFO "DC390: Target %i initiates Non-Sync?\n", pDCB->TargetID);
pSRB->SRBState &= ~DO_SYNC_NEGO;
pDCB->SyncMode &= ~(SYNC_ENABLE+SYNC_NEGO_DONE);
pDCB->SyncPeriod = 0;
pDCB->SyncOffset = 0;
//pDCB->NegoPeriod = 50; /* 200ns <=> 5 MHz */
pDCB->CtrlR3 = FAST_CLK; /* fast clock / normal scsi */
pDCB->CtrlR4 &= 0x3f;
pDCB->CtrlR4 |= pACB->glitch_cfg; /* glitch eater */
dc390_reprog (pACB, pDCB);
}
/* set sync transfer mode */
static void
dc390_MsgIn_set_sync (struct dc390_acb* pACB, struct dc390_srb* pSRB)
{
u8 bval;
u16 wval, wval1;
struct dc390_dcb* pDCB = pSRB->pSRBDCB;
u8 oldsyncperiod = pDCB->SyncPeriod;
u8 oldsyncoffset = pDCB->SyncOffset;
if (!(pSRB->SRBState & DO_SYNC_NEGO))
{
printk (KERN_INFO "DC390: Target %i initiates Sync: %ins %i ... answer ...\n",
pDCB->TargetID, pSRB->MsgInBuf[3]<<2, pSRB->MsgInBuf[4]);
/* reject */
//dc390_MsgIn_reject (pACB, pSRB);
//return dc390_MsgIn_set_async (pACB, pSRB);
/* Reply with corrected SDTR Message */
if (pSRB->MsgInBuf[4] > 15)
{
printk (KERN_INFO "DC390: Lower Sync Offset to 15\n");
pSRB->MsgInBuf[4] = 15;
}
if (pSRB->MsgInBuf[3] < pDCB->NegoPeriod)
{
printk (KERN_INFO "DC390: Set sync nego period to %ins\n", pDCB->NegoPeriod << 2);
pSRB->MsgInBuf[3] = pDCB->NegoPeriod;
}
memcpy (pSRB->MsgOutBuf, pSRB->MsgInBuf, 5);
pSRB->MsgCnt = 5;
DC390_ENABLE_MSGOUT;
}
pSRB->SRBState &= ~DO_SYNC_NEGO;
pDCB->SyncMode |= SYNC_ENABLE+SYNC_NEGO_DONE;
pDCB->SyncOffset &= 0x0f0;
pDCB->SyncOffset |= pSRB->MsgInBuf[4];
pDCB->NegoPeriod = pSRB->MsgInBuf[3];
wval = (u16) pSRB->MsgInBuf[3];
wval = wval << 2; wval -= 3; wval1 = wval / 25; /* compute speed */
if( (wval1 * 25) != wval) wval1++;
bval = FAST_CLK+FAST_SCSI; /* fast clock / fast scsi */
pDCB->CtrlR4 &= 0x3f; /* Glitch eater: 12ns less than normal */
if (pACB->glitch_cfg != NS_TO_GLITCH(0))
pDCB->CtrlR4 |= NS_TO_GLITCH(((GLITCH_TO_NS(pACB->glitch_cfg)) - 1));
else
pDCB->CtrlR4 |= NS_TO_GLITCH(0);
if (wval1 < 4) pDCB->CtrlR4 |= NS_TO_GLITCH(0); /* Ultra */
if (wval1 >= 8)
{
wval1--; /* Timing computation differs by 1 from FAST_SCSI */
bval = FAST_CLK; /* fast clock / normal scsi */
pDCB->CtrlR4 |= pACB->glitch_cfg; /* glitch eater */
}
pDCB->CtrlR3 = bval;
pDCB->SyncPeriod = (u8)wval1;
if ((oldsyncperiod != wval1 || oldsyncoffset != pDCB->SyncOffset) && pDCB->TargetLUN == 0)
{
if (! (bval & FAST_SCSI)) wval1++;
printk (KERN_INFO "DC390: Target %i: Sync transfer %i.%1i MHz, Offset %i\n", pDCB->TargetID,
40/wval1, ((40%wval1)*10+wval1/2)/wval1, pDCB->SyncOffset & 0x0f);
}
dc390_reprog (pACB, pDCB);
}
/* handle RESTORE_PTR */
[SCSI] tmscsim: Remove the last bus_to_virt() Dynamically map the buffer for PIO for the residue byte. Signed-off-by: G. Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-05-04 21:00:49 +00:00
/* This doesn't look very healthy... to-be-fixed */
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
static void
dc390_restore_ptr (struct dc390_acb* pACB, struct dc390_srb* pSRB)
{
struct scsi_cmnd *pcmd = pSRB->pcmd;
struct scatterlist *psgl;
pSRB->TotalXferredLen = 0;
pSRB->SGIndex = 0;
[SCSI] tmscsim: convert to use the data buffer accessors - remove the unnecessary map_single path. - convert to use the new accessors for the sg lists and the parameters. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-05-25 17:41:54 +00:00
if (scsi_sg_count(pcmd)) {
[SCSI] tmscsim: Remove the last bus_to_virt() Dynamically map the buffer for PIO for the residue byte. Signed-off-by: G. Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-05-04 21:00:49 +00:00
size_t saved;
[SCSI] tmscsim: convert to use the data buffer accessors - remove the unnecessary map_single path. - convert to use the new accessors for the sg lists and the parameters. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-05-25 17:41:54 +00:00
pSRB->pSegmentList = scsi_sglist(pcmd);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
psgl = pSRB->pSegmentList;
//dc390_pci_sync(pSRB);
while (pSRB->TotalXferredLen + (unsigned long) sg_dma_len(psgl) < pSRB->Saved_Ptr)
{
pSRB->TotalXferredLen += (unsigned long) sg_dma_len(psgl);
pSRB->SGIndex++;
if( pSRB->SGIndex < pSRB->SGcount )
{
pSRB->pSegmentList++;
[SCSI] tmscsim: Remove the last bus_to_virt() Dynamically map the buffer for PIO for the residue byte. Signed-off-by: G. Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-05-04 21:00:49 +00:00
dc390_start_segment(pSRB);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
}
else
pSRB->SGToBeXferLen = 0;
}
[SCSI] tmscsim: Remove the last bus_to_virt() Dynamically map the buffer for PIO for the residue byte. Signed-off-by: G. Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-05-04 21:00:49 +00:00
saved = pSRB->Saved_Ptr - pSRB->TotalXferredLen;
pSRB->SGToBeXferLen -= saved;
pSRB->SGBusAddr += saved;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
printk (KERN_INFO "DC390: Pointer restored. Segment %i, Total %li, Bus %08lx\n",
pSRB->SGIndex, pSRB->Saved_Ptr, pSRB->SGBusAddr);
} else {
pSRB->SGcount = 0;
printk (KERN_INFO "DC390: RESTORE_PTR message for Transfer without Scatter-Gather ??\n");
}
pSRB->TotalXferredLen = pSRB->Saved_Ptr;
}
/* According to the docs, the AM53C974 reads the message and
* generates a Successful Operation IRQ before asserting ACK for
* the last byte (how does it know whether it's the last ?) */
/* The old code handled it in another way, indicating, that on
* every message byte an IRQ is generated and every byte has to
* be manually ACKed. Hmmm ? (KG, 98/11/28) */
/* The old implementation was correct. Sigh! */
/* Check if the message is complete */
static u8 __inline__
dc390_MsgIn_complete (u8 *msgbuf, u32 len)
{
if (*msgbuf == EXTENDED_MESSAGE)
{
if (len < 2) return 0;
if (len < msgbuf[1] + 2) return 0;
}
else if (*msgbuf >= 0x20 && *msgbuf <= 0x2f) // two byte messages
if (len < 2) return 0;
return 1;
}
/* read and eval received messages */
static void
dc390_MsgIn_0( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus)
{
struct dc390_dcb* pDCB = pACB->pActiveDCB;
/* Read the msg */
pSRB->MsgInBuf[pACB->MsgLen++] = DC390_read8 (ScsiFifo);
//pSRB->SRBState = 0;
/* Msg complete ? */
if (dc390_MsgIn_complete (pSRB->MsgInBuf, pACB->MsgLen))
{
DEBUG0 (printk (KERN_INFO "DC390: MsgIn:"); dc390_printMsg (pSRB->MsgInBuf, pACB->MsgLen));
/* Now eval the msg */
switch (pSRB->MsgInBuf[0])
{
case DISCONNECT:
pSRB->SRBState = SRB_DISCONNECT; break;
case SIMPLE_QUEUE_TAG:
case HEAD_OF_QUEUE_TAG:
case ORDERED_QUEUE_TAG:
pSRB = dc390_MsgIn_QTag (pACB, pDCB, pSRB->MsgInBuf[1]);
break;
case MESSAGE_REJECT:
DC390_write8 (ScsiCmd, RESET_ATN_CMD);
pDCB->NegoPeriod = 50; /* 200ns <=> 5 MHz */
if( pSRB->SRBState & DO_SYNC_NEGO)
dc390_MsgIn_set_async (pACB, pSRB);
break;
case EXTENDED_MESSAGE:
/* reject every extended msg but SDTR */
if (pSRB->MsgInBuf[1] != 3 || pSRB->MsgInBuf[2] != EXTENDED_SDTR)
dc390_MsgIn_reject (pACB, pSRB);
else
{
if (pSRB->MsgInBuf[3] == 0 || pSRB->MsgInBuf[4] == 0)
dc390_MsgIn_set_async (pACB, pSRB);
else
dc390_MsgIn_set_sync (pACB, pSRB);
}
// nothing has to be done
case COMMAND_COMPLETE: break;
// SAVE POINTER may be ignored as we have the struct dc390_srb* associated with the
// scsi command. Thanks, Gerard, for pointing it out.
case SAVE_POINTERS:
pSRB->Saved_Ptr = pSRB->TotalXferredLen;
break;
// The device might want to restart transfer with a RESTORE
case RESTORE_POINTERS:
DEBUG0(printk ("DC390: RESTORE POINTER message received ... try to handle\n"));
dc390_restore_ptr (pACB, pSRB);
break;
// reject unknown messages
default: dc390_MsgIn_reject (pACB, pSRB);
}
/* Clear counter and MsgIn state */
pSRB->SRBState &= ~SRB_MSGIN;
pACB->MsgLen = 0;
}
*psstatus = SCSI_NOP0;
DC390_write8 (ScsiCmd, MSG_ACCEPTED_CMD);
//DC390_write8 (DMA_Cmd, DMA_IDLE_CMD);
}
static void
dc390_DataIO_Comm( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 ioDir)
{
unsigned long lval;
struct dc390_dcb* pDCB = pACB->pActiveDCB;
if (pSRB == pACB->pTmpSRB)
{
if (pDCB)
printk(KERN_ERR "DC390: pSRB == pTmpSRB! (TagQ Error?) (%02i-%i)\n", pDCB->TargetID, pDCB->TargetLUN);
else
printk(KERN_ERR "DC390: pSRB == pTmpSRB! (TagQ Error?) (DCB 0!)\n");
/* Try to recover - some broken disks react badly to tagged INQUIRY */
if (pDCB && pACB->scan_devices && pDCB->GoingSRBCnt == 1) {
pSRB = pDCB->pGoingSRB;
pDCB->pActiveSRB = pSRB;
} else {
pSRB->pSRBDCB = pDCB;
dc390_EnableMsgOut_Abort(pACB, pSRB);
if (pDCB)
pDCB->DCBFlag |= ABORT_DEV;
return;
}
}
if( pSRB->SGIndex < pSRB->SGcount )
{
[SCSI] tmscsim: remove long dead DMA_INT DMA_INT code is disabled since 1998, remove it to prepare for further cleanup. Signed-off-by: G. Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-05-04 20:57:37 +00:00
DC390_write8 (DMA_Cmd, DMA_IDLE_CMD | ioDir);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
if( !pSRB->SGToBeXferLen )
{
[SCSI] tmscsim: Remove the last bus_to_virt() Dynamically map the buffer for PIO for the residue byte. Signed-off-by: G. Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-05-04 21:00:49 +00:00
dc390_start_segment(pSRB);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
DEBUG1(printk (KERN_DEBUG " DC390: Next SG segment."));
}
lval = pSRB->SGToBeXferLen;
DEBUG1(printk (KERN_DEBUG " DC390: Start transfer: %li bytes (address %08lx)\n", lval, pSRB->SGBusAddr));
DC390_write8 (CtcReg_Low, (u8) lval);
lval >>= 8;
DC390_write8 (CtcReg_Mid, (u8) lval);
lval >>= 8;
DC390_write8 (CtcReg_High, (u8) lval);
DC390_write32 (DMA_XferCnt, pSRB->SGToBeXferLen);
DC390_write32 (DMA_XferAddr, pSRB->SGBusAddr);
[SCSI] tmscsim: remove long dead DMA_INT DMA_INT code is disabled since 1998, remove it to prepare for further cleanup. Signed-off-by: G. Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-05-04 20:57:37 +00:00
//DC390_write8 (DMA_Cmd, DMA_IDLE_CMD | ioDir);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
pSRB->SRBState = SRB_DATA_XFER;
DC390_write8 (ScsiCmd, DMA_COMMAND+INFO_XFER_CMD);
[SCSI] tmscsim: remove long dead DMA_INT DMA_INT code is disabled since 1998, remove it to prepare for further cleanup. Signed-off-by: G. Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-05-04 20:57:37 +00:00
DC390_write8 (DMA_Cmd, DMA_START_CMD | ioDir);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
//DEBUG1(DC390_write32 (DMA_ScsiBusCtrl, WRT_ERASE_DMA_STAT | EN_INT_ON_PCI_ABORT));
//DEBUG1(printk (KERN_DEBUG "DC390: DMA_Status: %02x\n", DC390_read8 (DMA_Status)));
//DEBUG1(DC390_write32 (DMA_ScsiBusCtrl, EN_INT_ON_PCI_ABORT));
}
else /* xfer pad */
{
if( pSRB->SGcount )
{
pSRB->AdaptStatus = H_OVER_UNDER_RUN;
pSRB->SRBStatus |= OVER_RUN;
DEBUG0(printk (KERN_WARNING " DC390: Overrun -"));
}
DEBUG0(printk (KERN_WARNING " Clear transfer pad \n"));
DC390_write8 (CtcReg_Low, 0);
DC390_write8 (CtcReg_Mid, 0);
DC390_write8 (CtcReg_High, 0);
pSRB->SRBState |= SRB_XFERPAD;
DC390_write8 (ScsiCmd, DMA_COMMAND+XFER_PAD_BYTE);
/*
[SCSI] tmscsim: remove long dead DMA_INT DMA_INT code is disabled since 1998, remove it to prepare for further cleanup. Signed-off-by: G. Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-05-04 20:57:37 +00:00
DC390_write8 (DMA_Cmd, DMA_IDLE_CMD | ioDir);
DC390_write8 (DMA_Cmd, DMA_START_CMD | ioDir);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
*/
}
}
static void
dc390_DataOutPhase( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus)
{
dc390_DataIO_Comm (pACB, pSRB, WRITE_DIRECTION);
}
static void
dc390_DataInPhase( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus)
{
dc390_DataIO_Comm (pACB, pSRB, READ_DIRECTION);
}
static void
dc390_CommandPhase( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus)
{
struct dc390_dcb* pDCB;
u8 i, cnt;
u8 *ptr;
DC390_write8 (ScsiCmd, RESET_ATN_CMD);
DC390_write8 (ScsiCmd, CLEAR_FIFO_CMD);
if( !(pSRB->SRBFlag & AUTO_REQSENSE) )
{
cnt = (u8) pSRB->pcmd->cmd_len;
ptr = (u8 *) pSRB->pcmd->cmnd;
for(i=0; i < cnt; i++)
DC390_write8 (ScsiFifo, *(ptr++));
}
else
{
DC390_write8 (ScsiFifo, REQUEST_SENSE);
pDCB = pACB->pActiveDCB;
DC390_write8 (ScsiFifo, pDCB->TargetLUN << 5);
DC390_write8 (ScsiFifo, 0);
DC390_write8 (ScsiFifo, 0);
[SCSI] replace sizeof sense_buffer with SCSI_SENSE_BUFFERSIZE This replaces sizeof sense_buffer with SCSI_SENSE_BUFFERSIZE in several LLDs. It's a preparation for the future changes to remove sense_buffer array in scsi_cmnd structure. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-13 06:46:13 +00:00
DC390_write8 (ScsiFifo, SCSI_SENSE_BUFFERSIZE);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
DC390_write8 (ScsiFifo, 0);
DEBUG0(printk(KERN_DEBUG "DC390: AutoReqSense (CmndPhase)!\n"));
}
pSRB->SRBState = SRB_COMMAND;
DC390_write8 (ScsiCmd, INFO_XFER_CMD);
}
static void
dc390_StatusPhase( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus)
{
DC390_write8 (ScsiCmd, CLEAR_FIFO_CMD);
pSRB->SRBState = SRB_STATUS;
DC390_write8 (ScsiCmd, INITIATOR_CMD_CMPLTE);
//DC390_write8 (DMA_Cmd, DMA_IDLE_CMD);
}
static void
dc390_MsgOutPhase( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus)
{
u8 bval, i, cnt;
u8 *ptr;
struct dc390_dcb* pDCB;
DC390_write8 (ScsiCmd, CLEAR_FIFO_CMD);
pDCB = pACB->pActiveDCB;
if( !(pSRB->SRBState & SRB_MSGOUT) )
{
cnt = pSRB->MsgCnt;
if( cnt )
{
ptr = (u8 *) pSRB->MsgOutBuf;
for(i=0; i < cnt; i++)
DC390_write8 (ScsiFifo, *(ptr++));
pSRB->MsgCnt = 0;
if( (pDCB->DCBFlag & ABORT_DEV_) &&
(pSRB->MsgOutBuf[0] == ABORT) )
pSRB->SRBState = SRB_ABORT_SENT;
}
else
{
bval = ABORT; /* ??? MSG_NOP */
if( (pSRB->pcmd->cmnd[0] == INQUIRY ) ||
(pSRB->pcmd->cmnd[0] == REQUEST_SENSE) ||
(pSRB->SRBFlag & AUTO_REQSENSE) )
{
if( pDCB->SyncMode & SYNC_ENABLE )
goto mop1;
}
DC390_write8 (ScsiFifo, bval);
}
DC390_write8 (ScsiCmd, INFO_XFER_CMD);
}
else
{
mop1:
printk (KERN_ERR "DC390: OLD Sync Nego code triggered! (%i %i)\n", pDCB->TargetID, pDCB->TargetLUN);
DC390_write8 (ScsiFifo, EXTENDED_MESSAGE);
DC390_write8 (ScsiFifo, 3); /* ;length of extended msg */
DC390_write8 (ScsiFifo, EXTENDED_SDTR); /* ; sync nego */
DC390_write8 (ScsiFifo, pDCB->NegoPeriod);
if (pDCB->SyncOffset & 0x0f)
DC390_write8 (ScsiFifo, pDCB->SyncOffset);
else
DC390_write8 (ScsiFifo, SYNC_NEGO_OFFSET);
pSRB->SRBState |= DO_SYNC_NEGO;
DC390_write8 (ScsiCmd, INFO_XFER_CMD);
}
}
static void
dc390_MsgInPhase( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus)
{
DC390_write8 (ScsiCmd, CLEAR_FIFO_CMD);
if( !(pSRB->SRBState & SRB_MSGIN) )
{
pSRB->SRBState &= ~SRB_DISCONNECT;
pSRB->SRBState |= SRB_MSGIN;
}
DC390_write8 (ScsiCmd, INFO_XFER_CMD);
//DC390_write8 (DMA_Cmd, DMA_IDLE_CMD);
}
static void
dc390_Nop_0( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus)
{
}
static void
dc390_Nop_1( struct dc390_acb* pACB, struct dc390_srb* pSRB, u8 *psstatus)
{
}
static void
dc390_SetXferRate( struct dc390_acb* pACB, struct dc390_dcb* pDCB )
{
u8 bval, i, cnt;
struct dc390_dcb* ptr;
if( !(pDCB->TargetLUN) )
{
if( !pACB->scan_devices )
{
ptr = pACB->pLinkDCB;
cnt = pACB->DCBCnt;
bval = pDCB->TargetID;
for(i=0; i<cnt; i++)
{
if( ptr->TargetID == bval )
{
ptr->SyncPeriod = pDCB->SyncPeriod;
ptr->SyncOffset = pDCB->SyncOffset;
ptr->CtrlR3 = pDCB->CtrlR3;
ptr->CtrlR4 = pDCB->CtrlR4;
ptr->SyncMode = pDCB->SyncMode;
}
ptr = ptr->pNextDCB;
}
}
}
return;
}
static void
dc390_Disconnect( struct dc390_acb* pACB )
{
struct dc390_dcb *pDCB;
struct dc390_srb *pSRB, *psrb;
u8 i, cnt;
DEBUG0(printk(KERN_INFO "DISC,"));
if (!pACB->Connected) printk(KERN_ERR "DC390: Disconnect not-connected bus?\n");
pACB->Connected = 0;
pDCB = pACB->pActiveDCB;
if (!pDCB)
{
DEBUG0(printk(KERN_ERR "ACB:%p->ActiveDCB:%p IOPort:%04x IRQ:%02x !\n",\
pACB, pDCB, pACB->IOPortBase, pACB->IRQLevel));
mdelay(400);
DC390_read8 (INT_Status); /* Reset Pending INT */
DC390_write8 (ScsiCmd, EN_SEL_RESEL);
return;
}
DC390_write8 (ScsiCmd, EN_SEL_RESEL);
pSRB = pDCB->pActiveSRB;
pACB->pActiveDCB = NULL;
pSRB->ScsiPhase = SCSI_NOP0;
if( pSRB->SRBState & SRB_UNEXPECT_RESEL )
pSRB->SRBState = 0;
else if( pSRB->SRBState & SRB_ABORT_SENT )
{
pDCB->TagMask = 0;
pDCB->DCBFlag = 0;
cnt = pDCB->GoingSRBCnt;
pDCB->GoingSRBCnt = 0;
pSRB = pDCB->pGoingSRB;
for( i=0; i < cnt; i++)
{
psrb = pSRB->pNextSRB;
dc390_Free_insert (pACB, pSRB);
pSRB = psrb;
}
pDCB->pGoingSRB = NULL;
}
else
{
if( (pSRB->SRBState & (SRB_START_+SRB_MSGOUT)) ||
!(pSRB->SRBState & (SRB_DISCONNECT+SRB_COMPLETED)) )
{ /* Selection time out */
[SCSI] tmscsim: clean-up status codes Remove redundant defines from the header, replace all occurances in the code with standard SAM_STAT_ macros. Also fix what seems to be a typo in testing for (status == H_OVER_UNDER_RUN)... Signed-off-by: G. Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-06-17 18:32:27 +00:00
pSRB->AdaptStatus = H_SEL_TIMEOUT;
pSRB->TargetStatus = 0;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
goto disc1;
}
else if (!(pSRB->SRBState & SRB_DISCONNECT) && (pSRB->SRBState & SRB_COMPLETED))
{
disc1:
dc390_freetag (pDCB, pSRB);
pDCB->pActiveSRB = NULL;
pSRB->SRBState = SRB_FREE;
dc390_SRBdone( pACB, pDCB, pSRB);
}
}
pACB->MsgLen = 0;
}
static void
dc390_Reselect( struct dc390_acb* pACB )
{
struct dc390_dcb* pDCB;
struct dc390_srb* pSRB;
u8 id, lun;
DEBUG0(printk(KERN_INFO "RSEL,"));
pACB->Connected = 1;
pDCB = pACB->pActiveDCB;
if( pDCB )
{ /* Arbitration lost but Reselection won */
DEBUG0(printk ("DC390: (ActiveDCB != 0: Arb. lost but resel. won)!\n"));
pSRB = pDCB->pActiveSRB;
if( !( pACB->scan_devices ) )
{
struct scsi_cmnd *pcmd = pSRB->pcmd;
[SCSI] tmscsim: convert to use the data buffer accessors - remove the unnecessary map_single path. - convert to use the new accessors for the sg lists and the parameters. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-05-25 17:41:54 +00:00
scsi_set_resid(pcmd, scsi_bufflen(pcmd));
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
SET_RES_DID(pcmd->result, DID_SOFT_ERROR);
dc390_Going_remove(pDCB, pSRB);
dc390_Free_insert(pACB, pSRB);
pcmd->scsi_done (pcmd);
DEBUG0(printk(KERN_DEBUG"DC390: Return SRB %p to free\n", pSRB));
}
}
/* Get ID */
lun = DC390_read8 (ScsiFifo);
DEBUG0(printk ("Dev %02x,", lun));
if (!(lun & (1 << pACB->pScsiHost->this_id)))
printk (KERN_ERR "DC390: Reselection must select host adapter: %02x!\n", lun);
else
lun ^= 1 << pACB->pScsiHost->this_id; /* Mask AdapterID */
id = 0; while (lun >>= 1) id++;
/* Get LUN */
lun = DC390_read8 (ScsiFifo);
if (!(lun & IDENTIFY_BASE)) printk (KERN_ERR "DC390: Resel: Expect identify message!\n");
lun &= 7;
DEBUG0(printk ("(%02i-%i),", id, lun));
pDCB = dc390_findDCB (pACB, id, lun);
if (!pDCB)
{
printk (KERN_ERR "DC390: Reselect from non existing device (%02i-%i)\n",
id, lun);
return;
}
pACB->pActiveDCB = pDCB;
/* TagQ: We expect a message soon, so never mind the exact SRB */
if( pDCB->SyncMode & EN_TAG_QUEUEING )
{
pSRB = pACB->pTmpSRB;
pDCB->pActiveSRB = pSRB;
}
else
{
pSRB = pDCB->pActiveSRB;
if( !pSRB || !(pSRB->SRBState & SRB_DISCONNECT) )
{
pSRB= pACB->pTmpSRB;
pSRB->SRBState = SRB_UNEXPECT_RESEL;
printk (KERN_ERR "DC390: Reselect without outstanding cmnd (%02i-%i)\n",
id, lun);
pDCB->pActiveSRB = pSRB;
dc390_EnableMsgOut_Abort ( pACB, pSRB );
}
else
{
if( pDCB->DCBFlag & ABORT_DEV_ )
{
pSRB->SRBState = SRB_ABORT_SENT;
printk (KERN_INFO "DC390: Reselect: Abort (%02i-%i)\n",
id, lun);
dc390_EnableMsgOut_Abort( pACB, pSRB );
}
else
pSRB->SRBState = SRB_DATA_XFER;
}
}
DEBUG1(printk (KERN_DEBUG "Resel SRB(%p): TagNum (%02x)\n", pSRB, pSRB->TagNumber));
pSRB->ScsiPhase = SCSI_NOP0;
DC390_write8 (Scsi_Dest_ID, pDCB->TargetID);
DC390_write8 (Sync_Period, pDCB->SyncPeriod);
DC390_write8 (Sync_Offset, pDCB->SyncOffset);
DC390_write8 (CtrlReg1, pDCB->CtrlR1);
DC390_write8 (CtrlReg3, pDCB->CtrlR3);
DC390_write8 (CtrlReg4, pDCB->CtrlR4); /* ; Glitch eater */
DC390_write8 (ScsiCmd, MSG_ACCEPTED_CMD); /* ;to release the /ACK signal */
}
static int __inline__
dc390_RequestSense(struct dc390_acb* pACB, struct dc390_dcb* pDCB, struct dc390_srb* pSRB)
{
struct scsi_cmnd *pcmd;
pcmd = pSRB->pcmd;
REMOVABLEDEBUG(printk(KERN_INFO "DC390: RequestSense(Cmd %02x, Id %02x, LUN %02x)\n",\
pcmd->cmnd[0], pDCB->TargetID, pDCB->TargetLUN));
pSRB->SRBFlag |= AUTO_REQSENSE;
pSRB->SavedTotXLen = pSRB->TotalXferredLen;
pSRB->AdaptStatus = 0;
pSRB->TargetStatus = 0; /* CHECK_CONDITION<<1; */
/* We are called from SRBdone, original PCI mapping has been removed
* already, new one is set up from StartSCSI */
pSRB->SGIndex = 0;
pSRB->TotalXferredLen = 0;
pSRB->SGToBeXferLen = 0;
return dc390_StartSCSI(pACB, pDCB, pSRB);
}
static void
dc390_SRBdone( struct dc390_acb* pACB, struct dc390_dcb* pDCB, struct dc390_srb* pSRB )
{
u8 status;
struct scsi_cmnd *pcmd;
pcmd = pSRB->pcmd;
/* KG: Moved pci_unmap here */
dc390_pci_unmap(pSRB);
status = pSRB->TargetStatus;
[SCSI] remove cmd->serial_number litter Stop using cmd->serial_number in printks. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-04-04 13:42:14 +00:00
DEBUG0(printk (" SRBdone (%02x,%08x), SRB %p\n", status, pcmd->result, pSRB));
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
if(pSRB->SRBFlag & AUTO_REQSENSE)
{ /* Last command was a Request Sense */
pSRB->SRBFlag &= ~AUTO_REQSENSE;
pSRB->AdaptStatus = 0;
[SCSI] tmscsim: clean-up status codes Remove redundant defines from the header, replace all occurances in the code with standard SAM_STAT_ macros. Also fix what seems to be a typo in testing for (status == H_OVER_UNDER_RUN)... Signed-off-by: G. Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-06-17 18:32:27 +00:00
pSRB->TargetStatus = SAM_STAT_CHECK_CONDITION;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
//pcmd->result = MK_RES(DRIVER_SENSE,DID_OK,0,status);
[SCSI] tmscsim: clean-up status codes Remove redundant defines from the header, replace all occurances in the code with standard SAM_STAT_ macros. Also fix what seems to be a typo in testing for (status == H_OVER_UNDER_RUN)... Signed-off-by: G. Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-06-17 18:32:27 +00:00
if (status == SAM_STAT_CHECK_CONDITION)
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
pcmd->result = MK_RES_LNX(0, DID_BAD_TARGET, 0, /*CHECK_CONDITION*/0);
else /* Retry */
{
if( pSRB->pcmd->cmnd[0] == TEST_UNIT_READY /* || pSRB->pcmd->cmnd[0] == START_STOP */)
{
/* Don't retry on TEST_UNIT_READY */
[SCSI] tmscsim: clean-up status codes Remove redundant defines from the header, replace all occurances in the code with standard SAM_STAT_ macros. Also fix what seems to be a typo in testing for (status == H_OVER_UNDER_RUN)... Signed-off-by: G. Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-06-17 18:32:27 +00:00
pcmd->result = MK_RES_LNX(DRIVER_SENSE, DID_OK, 0, SAM_STAT_CHECK_CONDITION);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
REMOVABLEDEBUG(printk(KERN_INFO "Cmd=%02x, Result=%08x, XferL=%08x\n",pSRB->pcmd->cmnd[0],\
(u32) pcmd->result, (u32) pSRB->TotalXferredLen));
} else {
SET_RES_DRV(pcmd->result, DRIVER_SENSE);
//pSRB->ScsiCmdLen = (u8) (pSRB->Segment1[0] >> 8);
[SCSI] remove cmd->serial_number litter Stop using cmd->serial_number in printks. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-04-04 13:42:14 +00:00
DEBUG0 (printk ("DC390: RETRY (%02x), target %02i-%02i\n", pcmd->cmnd[0], pcmd->device->id, pcmd->device->lun));
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
pSRB->TotalXferredLen = 0;
SET_RES_DID(pcmd->result, DID_SOFT_ERROR);
}
}
goto cmd_done;
}
if( status )
{
[SCSI] tmscsim: clean-up status codes Remove redundant defines from the header, replace all occurances in the code with standard SAM_STAT_ macros. Also fix what seems to be a typo in testing for (status == H_OVER_UNDER_RUN)... Signed-off-by: G. Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-06-17 18:32:27 +00:00
if (status == SAM_STAT_CHECK_CONDITION)
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
{
if (dc390_RequestSense(pACB, pDCB, pSRB)) {
SET_RES_DID(pcmd->result, DID_ERROR);
goto cmd_done;
}
return;
}
[SCSI] tmscsim: clean-up status codes Remove redundant defines from the header, replace all occurances in the code with standard SAM_STAT_ macros. Also fix what seems to be a typo in testing for (status == H_OVER_UNDER_RUN)... Signed-off-by: G. Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-06-17 18:32:27 +00:00
else if (status == SAM_STAT_TASK_SET_FULL)
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
{
scsi_track_queue_full(pcmd->device, pDCB->GoingSRBCnt - 1);
[SCSI] remove cmd->serial_number litter Stop using cmd->serial_number in printks. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-04-04 13:42:14 +00:00
DEBUG0 (printk ("DC390: RETRY (%02x), target %02i-%02i\n", pcmd->cmnd[0], pcmd->device->id, pcmd->device->lun));
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
pSRB->TotalXferredLen = 0;
SET_RES_DID(pcmd->result, DID_SOFT_ERROR);
}
[SCSI] tmscsim: clean-up status codes Remove redundant defines from the header, replace all occurances in the code with standard SAM_STAT_ macros. Also fix what seems to be a typo in testing for (status == H_OVER_UNDER_RUN)... Signed-off-by: G. Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-06-17 18:32:27 +00:00
else if (status == SAM_STAT_BUSY &&
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
(pcmd->cmnd[0] == TEST_UNIT_READY || pcmd->cmnd[0] == INQUIRY) &&
pACB->scan_devices)
{
pSRB->AdaptStatus = 0;
pSRB->TargetStatus = status;
pcmd->result = MK_RES(0,0,pSRB->EndMessage,/*status*/0);
}
else
{ /* Another error */
pSRB->TotalXferredLen = 0;
SET_RES_DID(pcmd->result, DID_SOFT_ERROR);
goto cmd_done;
}
}
else
{ /* Target status == 0 */
status = pSRB->AdaptStatus;
[SCSI] tmscsim: clean-up status codes Remove redundant defines from the header, replace all occurances in the code with standard SAM_STAT_ macros. Also fix what seems to be a typo in testing for (status == H_OVER_UNDER_RUN)... Signed-off-by: G. Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-06-17 18:32:27 +00:00
if (status == H_OVER_UNDER_RUN)
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
{
pSRB->TargetStatus = 0;
SET_RES_DID(pcmd->result,DID_OK);
SET_RES_MSG(pcmd->result,pSRB->EndMessage);
}
[SCSI] tmscsim: clean-up status codes Remove redundant defines from the header, replace all occurances in the code with standard SAM_STAT_ macros. Also fix what seems to be a typo in testing for (status == H_OVER_UNDER_RUN)... Signed-off-by: G. Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-06-17 18:32:27 +00:00
else if (status == H_SEL_TIMEOUT)
{
pcmd->result = MK_RES(0, DID_NO_CONNECT, 0, 0);
/* Devices are removed below ... */
}
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
else if( pSRB->SRBStatus & PARITY_ERROR)
{
//pcmd->result = MK_RES(0,DID_PARITY,pSRB->EndMessage,0);
SET_RES_DID(pcmd->result,DID_PARITY);
SET_RES_MSG(pcmd->result,pSRB->EndMessage);
}
else /* No error */
{
pSRB->AdaptStatus = 0;
pSRB->TargetStatus = 0;
SET_RES_DID(pcmd->result,DID_OK);
}
}
cmd_done:
[SCSI] tmscsim: convert to use the data buffer accessors - remove the unnecessary map_single path. - convert to use the new accessors for the sg lists and the parameters. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-05-25 17:41:54 +00:00
scsi_set_resid(pcmd, scsi_bufflen(pcmd) - pSRB->TotalXferredLen);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
dc390_Going_remove (pDCB, pSRB);
/* Add to free list */
dc390_Free_insert (pACB, pSRB);
[SCSI] remove cmd->serial_number litter Stop using cmd->serial_number in printks. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-04-04 13:42:14 +00:00
DEBUG0(printk (KERN_DEBUG "DC390: SRBdone: done\n"));
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
pcmd->scsi_done (pcmd);
return;
}
/* Remove all SRBs from Going list and inform midlevel */
static void
dc390_DoingSRB_Done(struct dc390_acb* pACB, struct scsi_cmnd *cmd)
{
struct dc390_dcb *pDCB, *pdcb;
struct dc390_srb *psrb, *psrb2;
int i;
struct scsi_cmnd *pcmd;
pDCB = pACB->pLinkDCB;
pdcb = pDCB;
if (! pdcb) return;
do
{
psrb = pdcb->pGoingSRB;
for (i = 0; i < pdcb->GoingSRBCnt; i++)
{
psrb2 = psrb->pNextSRB;
pcmd = psrb->pcmd;
dc390_Free_insert (pACB, psrb);
psrb = psrb2;
}
pdcb->GoingSRBCnt = 0;
pdcb->pGoingSRB = NULL;
pdcb->TagMask = 0;
pdcb = pdcb->pNextDCB;
} while( pdcb != pDCB );
}
static void
dc390_ResetSCSIBus( struct dc390_acb* pACB )
{
//DC390_write8 (ScsiCmd, RST_DEVICE_CMD);
//udelay (250);
//DC390_write8 (ScsiCmd, NOP_CMD);
DC390_write8 (ScsiCmd, CLEAR_FIFO_CMD);
DC390_write8 (DMA_Cmd, DMA_IDLE_CMD);
DC390_write8 (ScsiCmd, RST_SCSI_BUS_CMD);
pACB->Connected = 0;
return;
}
static void
dc390_ScsiRstDetect( struct dc390_acb* pACB )
{
printk ("DC390: Rst_Detect: laststat = %08x\n", dc390_laststatus);
//DEBUG0(printk(KERN_INFO "RST_DETECT,"));
DC390_write8 (DMA_Cmd, DMA_IDLE_CMD);
/* Unlock before ? */
/* delay half a second */
udelay (1000);
DC390_write8 (ScsiCmd, CLEAR_FIFO_CMD);
pACB->pScsiHost->last_reset = jiffies + 5*HZ/2
+ HZ * dc390_eepromBuf[pACB->AdapterIndex][EE_DELAY];
pACB->Connected = 0;
if( pACB->ACBFlag & RESET_DEV )
pACB->ACBFlag |= RESET_DONE;
else
{ /* Reset was issued by sb else */
pACB->ACBFlag |= RESET_DETECT;
dc390_ResetDevParam( pACB );
dc390_DoingSRB_Done( pACB, NULL);
//dc390_RecoverSRB( pACB );
pACB->pActiveDCB = NULL;
pACB->ACBFlag = 0;
}
return;
}
SCSI host lock push-down Move the mid-layer's ->queuecommand() invocation from being locked with the host lock to being unlocked to facilitate speeding up the critical path for drivers who don't need this lock taken anyway. The patch below presents a simple SCSI host lock push-down as an equivalent transformation. No locking or other behavior should change with this patch. All existing bugs and locking orders are preserved. Additionally, add one parameter to queuecommand, struct Scsi_Host * and remove one parameter from queuecommand, void (*done)(struct scsi_cmnd *) Scsi_Host* is a convenient pointer that most host drivers need anyway, and 'done' is redundant to struct scsi_cmnd->scsi_done. Minimal code disturbance was attempted with this change. Most drivers needed only two one-line modifications for their host lock push-down. Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Acked-by: James Bottomley <James.Bottomley@suse.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-11-16 07:10:29 +00:00
static int DC390_queuecommand_lck(struct scsi_cmnd *cmd,
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
void (*done)(struct scsi_cmnd *))
{
struct scsi_device *sdev = cmd->device;
struct dc390_acb *acb = (struct dc390_acb *)sdev->host->hostdata;
struct dc390_dcb *dcb = sdev->hostdata;
struct dc390_srb *srb;
if (sdev->queue_depth <= dcb->GoingSRBCnt)
goto device_busy;
if (acb->pActiveDCB)
goto host_busy;
if (acb->ACBFlag & (RESET_DETECT|RESET_DONE|RESET_DEV))
goto host_busy;
srb = acb->pFreeSRB;
if (unlikely(srb == NULL))
goto host_busy;
cmd->scsi_done = done;
cmd->result = 0;
acb->Cmds++;
acb->pFreeSRB = srb->pNextSRB;
srb->pNextSRB = NULL;
srb->pSRBDCB = dcb;
srb->pcmd = cmd;
cmd->host_scribble = (char *)srb;
srb->SGIndex = 0;
srb->AdaptStatus = 0;
srb->TargetStatus = 0;
srb->MsgCnt = 0;
srb->SRBStatus = 0;
srb->SRBFlag = 0;
srb->SRBState = 0;
srb->TotalXferredLen = 0;
srb->SGBusAddr = 0;
srb->SGToBeXferLen = 0;
srb->ScsiPhase = 0;
srb->EndMessage = 0;
srb->TagNumber = SCSI_NO_TAG;
if (dc390_StartSCSI(acb, dcb, srb)) {
dc390_Free_insert(acb, srb);
goto host_busy;
}
dc390_Going_append(dcb, srb);
return 0;
host_busy:
return SCSI_MLQUEUE_HOST_BUSY;
device_busy:
return SCSI_MLQUEUE_DEVICE_BUSY;
}
SCSI host lock push-down Move the mid-layer's ->queuecommand() invocation from being locked with the host lock to being unlocked to facilitate speeding up the critical path for drivers who don't need this lock taken anyway. The patch below presents a simple SCSI host lock push-down as an equivalent transformation. No locking or other behavior should change with this patch. All existing bugs and locking orders are preserved. Additionally, add one parameter to queuecommand, struct Scsi_Host * and remove one parameter from queuecommand, void (*done)(struct scsi_cmnd *) Scsi_Host* is a convenient pointer that most host drivers need anyway, and 'done' is redundant to struct scsi_cmnd->scsi_done. Minimal code disturbance was attempted with this change. Most drivers needed only two one-line modifications for their host lock push-down. Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Acked-by: James Bottomley <James.Bottomley@suse.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-11-16 07:10:29 +00:00
static DEF_SCSI_QCMD(DC390_queuecommand)
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
static void dc390_dumpinfo (struct dc390_acb* pACB, struct dc390_dcb* pDCB, struct dc390_srb* pSRB)
{
struct pci_dev *pdev;
u16 pstat;
if (!pDCB) pDCB = pACB->pActiveDCB;
if (!pSRB && pDCB) pSRB = pDCB->pActiveSRB;
if (pSRB)
{
printk ("DC390: SRB: Xferred %08lx, Remain %08lx, State %08x, Phase %02x\n",
pSRB->TotalXferredLen, pSRB->SGToBeXferLen, pSRB->SRBState,
pSRB->ScsiPhase);
printk ("DC390: AdpaterStatus: %02x, SRB Status %02x\n", pSRB->AdaptStatus, pSRB->SRBStatus);
}
printk ("DC390: Status of last IRQ (DMA/SC/Int/IRQ): %08x\n", dc390_laststatus);
printk ("DC390: Register dump: SCSI block:\n");
printk ("DC390: XferCnt Cmd Stat IntS IRQS FFIS Ctl1 Ctl2 Ctl3 Ctl4\n");
printk ("DC390: %06x %02x %02x %02x",
DC390_read8(CtcReg_Low) + (DC390_read8(CtcReg_Mid) << 8) + (DC390_read8(CtcReg_High) << 16),
DC390_read8(ScsiCmd), DC390_read8(Scsi_Status), DC390_read8(Intern_State));
printk (" %02x %02x %02x %02x %02x %02x\n",
DC390_read8(INT_Status), DC390_read8(Current_Fifo), DC390_read8(CtrlReg1),
DC390_read8(CtrlReg2), DC390_read8(CtrlReg3), DC390_read8(CtrlReg4));
DC390_write32 (DMA_ScsiBusCtrl, WRT_ERASE_DMA_STAT | EN_INT_ON_PCI_ABORT);
if (DC390_read8(Current_Fifo) & 0x1f)
{
printk ("DC390: FIFO:");
while (DC390_read8(Current_Fifo) & 0x1f) printk (" %02x", DC390_read8(ScsiFifo));
printk ("\n");
}
printk ("DC390: Register dump: DMA engine:\n");
printk ("DC390: Cmd STrCnt SBusA WrkBC WrkAC Stat SBusCtrl\n");
printk ("DC390: %02x %08x %08x %08x %08x %02x %08x\n",
DC390_read8(DMA_Cmd), DC390_read32(DMA_XferCnt), DC390_read32(DMA_XferAddr),
DC390_read32(DMA_Wk_ByteCntr), DC390_read32(DMA_Wk_AddrCntr),
DC390_read8(DMA_Status), DC390_read32(DMA_ScsiBusCtrl));
DC390_write32 (DMA_ScsiBusCtrl, EN_INT_ON_PCI_ABORT);
pdev = pACB->pdev;
pci_read_config_word(pdev, PCI_STATUS, &pstat);
printk ("DC390: Register dump: PCI Status: %04x\n", pstat);
printk ("DC390: In case of driver trouble read Documentation/scsi/tmscsim.txt\n");
}
static int DC390_abort(struct scsi_cmnd *cmd)
{
struct dc390_acb *pACB = (struct dc390_acb*) cmd->device->host->hostdata;
struct dc390_dcb *pDCB = (struct dc390_dcb*) cmd->device->hostdata;
[SCSI] remove cmd->serial_number litter Stop using cmd->serial_number in printks. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-04-04 13:42:14 +00:00
scmd_printk(KERN_WARNING, cmd, "DC390: Abort command\n");
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
/* abort() is too stupid for already sent commands at the moment.
* If it's called we are in trouble anyway, so let's dump some info
* into the syslog at least. (KG, 98/08/20,99/06/20) */
dc390_dumpinfo(pACB, pDCB, NULL);
pDCB->DCBFlag |= ABORT_DEV_;
[SCSI] remove cmd->serial_number litter Stop using cmd->serial_number in printks. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-04-04 13:42:14 +00:00
printk(KERN_INFO "DC390: Aborted.\n");
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
return FAILED;
}
static void dc390_ResetDevParam( struct dc390_acb* pACB )
{
struct dc390_dcb *pDCB, *pdcb;
pDCB = pACB->pLinkDCB;
if (! pDCB) return;
pdcb = pDCB;
do
{
pDCB->SyncMode &= ~SYNC_NEGO_DONE;
pDCB->SyncPeriod = 0;
pDCB->SyncOffset = 0;
pDCB->TagMask = 0;
pDCB->CtrlR3 = FAST_CLK;
pDCB->CtrlR4 &= NEGATE_REQACKDATA | CTRL4_RESERVED | NEGATE_REQACK;
pDCB->CtrlR4 |= pACB->glitch_cfg;
pDCB = pDCB->pNextDCB;
}
while( pdcb != pDCB );
pACB->ACBFlag &= ~(RESET_DEV | RESET_DONE | RESET_DETECT);
}
static int DC390_bus_reset (struct scsi_cmnd *cmd)
{
struct dc390_acb* pACB = (struct dc390_acb*) cmd->device->host->hostdata;
u8 bval;
[SCSI] allow sleeping in ->eh_bus_reset_handler() Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-05-28 11:56:31 +00:00
spin_lock_irq(cmd->device->host->host_lock);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
bval = DC390_read8(CtrlReg1) | DIS_INT_ON_SCSI_RST;
DC390_write8(CtrlReg1, bval); /* disable IRQ on bus reset */
pACB->ACBFlag |= RESET_DEV;
dc390_ResetSCSIBus(pACB);
dc390_ResetDevParam(pACB);
[SCSI] allow sleeping in ->eh_bus_reset_handler() Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-05-28 11:56:31 +00:00
mdelay(1);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
pACB->pScsiHost->last_reset = jiffies + 3*HZ/2
+ HZ * dc390_eepromBuf[pACB->AdapterIndex][EE_DELAY];
DC390_write8(ScsiCmd, CLEAR_FIFO_CMD);
DC390_read8(INT_Status); /* Reset Pending INT */
dc390_DoingSRB_Done(pACB, cmd);
pACB->pActiveDCB = NULL;
pACB->ACBFlag = 0;
bval = DC390_read8(CtrlReg1) & ~DIS_INT_ON_SCSI_RST;
DC390_write8(CtrlReg1, bval); /* re-enable interrupt */
[SCSI] allow sleeping in ->eh_bus_reset_handler() Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-05-28 11:56:31 +00:00
spin_unlock_irq(cmd->device->host->host_lock);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
return SUCCESS;
}
/**
* dc390_slave_alloc - Called by the scsi mid layer to tell us about a new
* scsi device that we need to deal with.
*
* @scsi_device: The new scsi device that we need to handle.
*/
static int dc390_slave_alloc(struct scsi_device *scsi_device)
{
struct dc390_acb *pACB = (struct dc390_acb*) scsi_device->host->hostdata;
struct dc390_dcb *pDCB, *pDCB2 = NULL;
uint id = scsi_device->id;
uint lun = scsi_device->lun;
some kmalloc/memset ->kzalloc (tree wide) Transform some calls to kmalloc/memset to a single kzalloc (or kcalloc). Here is a short excerpt of the semantic patch performing this transformation: @@ type T2; expression x; identifier f,fld; expression E; expression E1,E2; expression e1,e2,e3,y; statement S; @@ x = - kmalloc + kzalloc (E1,E2) ... when != \(x->fld=E;\|y=f(...,x,...);\|f(...,x,...);\|x=E;\|while(...) S\|for(e1;e2;e3) S\) - memset((T2)x,0,E1); @@ expression E1,E2,E3; @@ - kzalloc(E1 * E2,E3) + kcalloc(E1,E2,E3) [akpm@linux-foundation.org: get kcalloc args the right way around] Signed-off-by: Yoann Padioleau <padator@wanadoo.fr> Cc: Richard Henderson <rth@twiddle.net> Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Acked-by: Russell King <rmk@arm.linux.org.uk> Cc: Bryan Wu <bryan.wu@analog.com> Acked-by: Jiri Slaby <jirislaby@gmail.com> Cc: Dave Airlie <airlied@linux.ie> Acked-by: Roland Dreier <rolandd@cisco.com> Cc: Jiri Kosina <jkosina@suse.cz> Acked-by: Dmitry Torokhov <dtor@mail.ru> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Acked-by: Mauro Carvalho Chehab <mchehab@infradead.org> Acked-by: Pierre Ossman <drzeus-list@drzeus.cx> Cc: Jeff Garzik <jeff@garzik.org> Cc: "David S. Miller" <davem@davemloft.net> Acked-by: Greg KH <greg@kroah.com> Cc: James Bottomley <James.Bottomley@steeleye.com> Cc: "Antonino A. Daplas" <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-19 08:49:03 +00:00
pDCB = kzalloc(sizeof(struct dc390_dcb), GFP_KERNEL);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
if (!pDCB)
return -ENOMEM;
if (!pACB->DCBCnt++) {
pACB->pLinkDCB = pDCB;
pACB->pDCBRunRobin = pDCB;
} else {
pACB->pLastDCB->pNextDCB = pDCB;
}
pDCB->pNextDCB = pACB->pLinkDCB;
pACB->pLastDCB = pDCB;
pDCB->pDCBACB = pACB;
pDCB->TargetID = id;
pDCB->TargetLUN = lun;
/*
* Some values are for all LUNs: Copy them
* In a clean way: We would have an own structure for a SCSI-ID
*/
if (lun && (pDCB2 = dc390_findDCB(pACB, id, 0))) {
pDCB->DevMode = pDCB2->DevMode;
pDCB->SyncMode = pDCB2->SyncMode & SYNC_NEGO_DONE;
pDCB->SyncPeriod = pDCB2->SyncPeriod;
pDCB->SyncOffset = pDCB2->SyncOffset;
pDCB->NegoPeriod = pDCB2->NegoPeriod;
pDCB->CtrlR3 = pDCB2->CtrlR3;
pDCB->CtrlR4 = pDCB2->CtrlR4;
} else {
u8 index = pACB->AdapterIndex;
PEEprom prom = (PEEprom) &dc390_eepromBuf[index][id << 2];
pDCB->DevMode = prom->EE_MODE1;
pDCB->NegoPeriod =
(dc390_clock_period1[prom->EE_SPEED] * 25) >> 2;
pDCB->CtrlR3 = FAST_CLK;
pDCB->CtrlR4 = pACB->glitch_cfg | CTRL4_RESERVED;
if (dc390_eepromBuf[index][EE_MODE2] & ACTIVE_NEGATION)
pDCB->CtrlR4 |= NEGATE_REQACKDATA | NEGATE_REQACK;
}
if (pDCB->DevMode & SYNC_NEGO_)
pDCB->SyncMode |= SYNC_ENABLE;
else {
pDCB->SyncMode = 0;
pDCB->SyncOffset &= ~0x0f;
}
pDCB->CtrlR1 = pACB->pScsiHost->this_id;
if (pDCB->DevMode & PARITY_CHK_)
pDCB->CtrlR1 |= PARITY_ERR_REPO;
pACB->scan_devices = 1;
scsi_device->hostdata = pDCB;
return 0;
}
/**
* dc390_slave_destroy - Called by the scsi mid layer to tell us about a
* device that is going away.
*
* @scsi_device: The scsi device that we need to remove.
*/
static void dc390_slave_destroy(struct scsi_device *scsi_device)
{
struct dc390_acb* pACB = (struct dc390_acb*) scsi_device->host->hostdata;
struct dc390_dcb* pDCB = (struct dc390_dcb*) scsi_device->hostdata;
struct dc390_dcb* pPrevDCB = pACB->pLinkDCB;
pACB->scan_devices = 0;
BUG_ON(pDCB->GoingSRBCnt > 1);
if (pDCB == pACB->pLinkDCB) {
if (pACB->pLastDCB == pDCB) {
pDCB->pNextDCB = NULL;
pACB->pLastDCB = NULL;
}
pACB->pLinkDCB = pDCB->pNextDCB;
} else {
while (pPrevDCB->pNextDCB != pDCB)
pPrevDCB = pPrevDCB->pNextDCB;
pPrevDCB->pNextDCB = pDCB->pNextDCB;
if (pDCB == pACB->pLastDCB)
pACB->pLastDCB = pPrevDCB;
}
if (pDCB == pACB->pActiveDCB)
pACB->pActiveDCB = NULL;
if (pDCB == pACB->pLinkDCB)
pACB->pLinkDCB = pDCB->pNextDCB;
if (pDCB == pACB->pDCBRunRobin)
pACB->pDCBRunRobin = pDCB->pNextDCB;
kfree(pDCB);
pACB->DCBCnt--;
}
static int dc390_slave_configure(struct scsi_device *sdev)
{
struct dc390_acb *acb = (struct dc390_acb *)sdev->host->hostdata;
struct dc390_dcb *dcb = (struct dc390_dcb *)sdev->hostdata;
acb->scan_devices = 0;
if (sdev->tagged_supported && (dcb->DevMode & TAG_QUEUEING_)) {
dcb->SyncMode |= EN_TAG_QUEUEING;
scsi_activate_tcq(sdev, acb->TagMaxNum);
}
return 0;
}
static struct scsi_host_template driver_template = {
.module = THIS_MODULE,
.proc_name = "tmscsim",
.name = DC390_BANNER " V" DC390_VERSION,
.slave_alloc = dc390_slave_alloc,
.slave_configure = dc390_slave_configure,
.slave_destroy = dc390_slave_destroy,
.queuecommand = DC390_queuecommand,
.eh_abort_handler = DC390_abort,
.eh_bus_reset_handler = DC390_bus_reset,
.can_queue = 1,
.this_id = 7,
.sg_tablesize = SG_ALL,
.cmd_per_lun = 1,
[SCSI] enable clustering for tmscsim following an email from John Adams <johna@onevista.com> to me with a patch to enable tmscsim to use blocks up to 1MB and a discussion on linux-scsi, below is a patch to enable clustering for tmscsim. I made it switchable with a module parameter, with default "enable" - in case somebody gets problems with it. Unfortunately, I was not able to check if this alone lets you use any bigger blocks with a tape, as my tape seems to only support 1 block size - only "mt setblk 1" is successful, any other value fails. OTOH, testing on a P-133 showed that enabling clustering alone improves throughput by 10% and reduces CPU load by another 10%, so, seems a worthy thing to do. As for setting max_sectors, that might become a separate patch... Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2006-10-01 10:00:47 +00:00
.use_clustering = ENABLE_CLUSTERING,
[SCSI] tmscsim: set max_sectors AM53C974A's Start Transfer Counter register has 24 bits, thus maximum transfer length is 16MiB. But the maximum I can test is 8MiB, so use that until somebody tests 16MiB. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2006-10-05 22:11:17 +00:00
.max_sectors = 0x4000, /* 8MiB = 16 * 1024 * 512 */
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
};
/***********************************************************************
* Functions for access to DC390 EEPROM
* and some to emulate it
*
**********************************************************************/
static void __devinit dc390_eeprom_prepare_read(struct pci_dev *pdev, u8 cmd)
{
u8 carryFlag = 1, j = 0x80, bval;
int i;
for (i = 0; i < 9; i++) {
if (carryFlag) {
pci_write_config_byte(pdev, 0x80, 0x40);
bval = 0xc0;
} else
bval = 0x80;
udelay(160);
pci_write_config_byte(pdev, 0x80, bval);
udelay(160);
pci_write_config_byte(pdev, 0x80, 0);
udelay(160);
carryFlag = (cmd & j) ? 1 : 0;
j >>= 1;
}
}
static u16 __devinit dc390_eeprom_get_data(struct pci_dev *pdev)
{
int i;
u16 wval = 0;
u8 bval;
for (i = 0; i < 16; i++) {
wval <<= 1;
pci_write_config_byte(pdev, 0x80, 0x80);
udelay(160);
pci_write_config_byte(pdev, 0x80, 0x40);
udelay(160);
pci_read_config_byte(pdev, 0x00, &bval);
if (bval == 0x22)
wval |= 1;
}
return wval;
}
static void __devinit dc390_read_eeprom(struct pci_dev *pdev, u16 *ptr)
{
u8 cmd = EEPROM_READ, i;
for (i = 0; i < 0x40; i++) {
pci_write_config_byte(pdev, 0xc0, 0);
udelay(160);
dc390_eeprom_prepare_read(pdev, cmd++);
*ptr++ = dc390_eeprom_get_data(pdev);
pci_write_config_byte(pdev, 0x80, 0);
pci_write_config_byte(pdev, 0x80, 0);
udelay(160);
}
}
/* Override EEprom values with explicitly set values */
static void __devinit dc390_eeprom_override(u8 index)
{
u8 *ptr = (u8 *) dc390_eepromBuf[index], id;
/* Adapter Settings */
if (tmscsim[0] != -2)
ptr[EE_ADAPT_SCSI_ID] = (u8)tmscsim[0]; /* Adapter ID */
if (tmscsim[3] != -2)
ptr[EE_MODE2] = (u8)tmscsim[3];
if (tmscsim[5] != -2)
ptr[EE_DELAY] = tmscsim[5]; /* Reset delay */
if (tmscsim[4] != -2)
ptr[EE_TAG_CMD_NUM] = (u8)tmscsim[4]; /* Tagged Cmds */
/* Device Settings */
for (id = 0; id < MAX_SCSI_ID; id++) {
if (tmscsim[2] != -2)
ptr[id << 2] = (u8)tmscsim[2]; /* EE_MODE1 */
if (tmscsim[1] != -2)
ptr[(id << 2) + 1] = (u8)tmscsim[1]; /* EE_Speed */
}
}
static int __devinitdata tmscsim_def[] = {
7,
0 /* 10MHz */,
PARITY_CHK_ | SEND_START_ | EN_DISCONNECT_ | SYNC_NEGO_ | TAG_QUEUEING_,
MORE2_DRV | GREATER_1G | RST_SCSI_BUS | ACTIVE_NEGATION | LUN_CHECK,
3 /* 16 Tags per LUN */,
1 /* s delay after Reset */,
};
/* Copy defaults over set values where missing */
static void __devinit dc390_fill_with_defaults (void)
{
int i;
for (i = 0; i < 6; i++) {
if (tmscsim[i] < 0 || tmscsim[i] > 255)
tmscsim[i] = tmscsim_def[i];
}
/* Sanity checks */
if (tmscsim[0] > 7)
tmscsim[0] = 7;
if (tmscsim[1] > 7)
tmscsim[1] = 4;
if (tmscsim[4] > 5)
tmscsim[4] = 4;
if (tmscsim[5] > 180)
tmscsim[5] = 180;
}
static void __devinit dc390_check_eeprom(struct pci_dev *pdev, u8 index)
{
u8 interpd[] = {1, 3, 5, 10, 16, 30, 60, 120};
u8 EEbuf[128];
u16 *ptr = (u16 *)EEbuf, wval = 0;
int i;
dc390_read_eeprom(pdev, ptr);
memcpy(dc390_eepromBuf[index], EEbuf, EE_ADAPT_SCSI_ID);
memcpy(&dc390_eepromBuf[index][EE_ADAPT_SCSI_ID],
&EEbuf[REAL_EE_ADAPT_SCSI_ID], EE_LEN - EE_ADAPT_SCSI_ID);
dc390_eepromBuf[index][EE_DELAY] = interpd[dc390_eepromBuf[index][EE_DELAY]];
for (i = 0; i < 0x40; i++, ptr++)
wval += *ptr;
/* no Tekram EEprom found */
if (wval != 0x1234) {
int speed;
printk(KERN_INFO "DC390_init: No EEPROM found! Trying default settings ...\n");
/*
* XXX(hch): bogus, because we might have tekram and
* non-tekram hbas in a single machine.
*/
dc390_fill_with_defaults();
speed = dc390_clock_speed[tmscsim[1]];
printk(KERN_INFO "DC390: Used defaults: AdaptID=%i, SpeedIdx=%i (%i.%i MHz), "
"DevMode=0x%02x, AdaptMode=0x%02x, TaggedCmnds=%i (%i), DelayReset=%is\n",
tmscsim[0], tmscsim[1], speed / 10, speed % 10,
(u8)tmscsim[2], (u8)tmscsim[3], tmscsim[4], 2 << (tmscsim[4]), tmscsim[5]);
}
}
static void __devinit dc390_init_hw(struct dc390_acb *pACB, u8 index)
{
struct Scsi_Host *shost = pACB->pScsiHost;
u8 dstate;
/* Disable SCSI bus reset interrupt */
DC390_write8(CtrlReg1, DIS_INT_ON_SCSI_RST | shost->this_id);
if (pACB->Gmode2 & RST_SCSI_BUS) {
dc390_ResetSCSIBus(pACB);
udelay(1000);
shost->last_reset = jiffies + HZ/2 +
HZ * dc390_eepromBuf[pACB->AdapterIndex][EE_DELAY];
}
pACB->ACBFlag = 0;
/* Reset Pending INT */
DC390_read8(INT_Status);
/* 250ms selection timeout */
DC390_write8(Scsi_TimeOut, SEL_TIMEOUT);
/* Conversion factor = 0 , 40MHz clock */
DC390_write8(Clk_Factor, CLK_FREQ_40MHZ);
/* NOP cmd - clear command register */
DC390_write8(ScsiCmd, NOP_CMD);
/* Enable Feature and SCSI-2 */
DC390_write8(CtrlReg2, EN_FEATURE+EN_SCSI2_CMD);
/* Fast clock */
DC390_write8(CtrlReg3, FAST_CLK);
/* Negation */
DC390_write8(CtrlReg4, pACB->glitch_cfg | /* glitch eater */
(dc390_eepromBuf[index][EE_MODE2] & ACTIVE_NEGATION) ?
NEGATE_REQACKDATA : 0);
/* Clear Transfer Count High: ID */
DC390_write8(CtcReg_High, 0);
DC390_write8(DMA_Cmd, DMA_IDLE_CMD);
DC390_write8(ScsiCmd, CLEAR_FIFO_CMD);
DC390_write32(DMA_ScsiBusCtrl, EN_INT_ON_PCI_ABORT);
dstate = DC390_read8(DMA_Status);
DC390_write8(DMA_Status, dstate);
}
static int __devinit dc390_probe_one(struct pci_dev *pdev,
const struct pci_device_id *id)
{
struct dc390_acb *pACB;
struct Scsi_Host *shost;
unsigned long io_port;
int error = -ENODEV, i;
if (pci_enable_device(pdev))
goto out;
pci_set_master(pdev);
error = -ENOMEM;
[SCSI] enable clustering for tmscsim following an email from John Adams <johna@onevista.com> to me with a patch to enable tmscsim to use blocks up to 1MB and a discussion on linux-scsi, below is a patch to enable clustering for tmscsim. I made it switchable with a module parameter, with default "enable" - in case somebody gets problems with it. Unfortunately, I was not able to check if this alone lets you use any bigger blocks with a tape, as my tape seems to only support 1 block size - only "mt setblk 1" is successful, any other value fails. OTOH, testing on a P-133 showed that enabling clustering alone improves throughput by 10% and reduces CPU load by another 10%, so, seems a worthy thing to do. As for setting max_sectors, that might become a separate patch... Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2006-10-01 10:00:47 +00:00
if (disable_clustering)
driver_template.use_clustering = DISABLE_CLUSTERING;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
shost = scsi_host_alloc(&driver_template, sizeof(struct dc390_acb));
if (!shost)
goto out_disable_device;
pACB = (struct dc390_acb *)shost->hostdata;
memset(pACB, 0, sizeof(struct dc390_acb));
dc390_check_eeprom(pdev, dc390_adapterCnt);
dc390_eeprom_override(dc390_adapterCnt);
io_port = pci_resource_start(pdev, 0);
shost->this_id = dc390_eepromBuf[dc390_adapterCnt][EE_ADAPT_SCSI_ID];
shost->io_port = io_port;
shost->n_io_port = 0x80;
shost->irq = pdev->irq;
shost->base = io_port;
shost->unique_id = io_port;
shost->last_reset = jiffies;
pACB->pScsiHost = shost;
pACB->IOPortBase = (u16) io_port;
pACB->IRQLevel = pdev->irq;
shost->max_id = 8;
if (shost->max_id - 1 ==
dc390_eepromBuf[dc390_adapterCnt][EE_ADAPT_SCSI_ID])
shost->max_id--;
if (dc390_eepromBuf[dc390_adapterCnt][EE_MODE2] & LUN_CHECK)
shost->max_lun = 8;
else
shost->max_lun = 1;
pACB->pFreeSRB = pACB->SRB_array;
pACB->SRBCount = MAX_SRB_CNT;
pACB->AdapterIndex = dc390_adapterCnt;
pACB->TagMaxNum =
2 << dc390_eepromBuf[dc390_adapterCnt][EE_TAG_CMD_NUM];
pACB->Gmode2 = dc390_eepromBuf[dc390_adapterCnt][EE_MODE2];
for (i = 0; i < pACB->SRBCount-1; i++)
pACB->SRB_array[i].pNextSRB = &pACB->SRB_array[i+1];
pACB->SRB_array[pACB->SRBCount-1].pNextSRB = NULL;
pACB->pTmpSRB = &pACB->TmpSRB;
pACB->sel_timeout = SEL_TIMEOUT;
pACB->glitch_cfg = EATER_25NS;
pACB->pdev = pdev;
if (!request_region(io_port, shost->n_io_port, "tmscsim")) {
printk(KERN_ERR "DC390: register IO ports error!\n");
goto out_host_put;
}
/* Reset Pending INT */
DC390_read8_(INT_Status, io_port);
[PATCH] irq-flags: scsi: Use the new IRQF_ constants Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@elte.hu> Cc: "David S. Miller" <davem@davemloft.net> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: James Bottomley <James.Bottomley@steeleye.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-07-02 02:29:42 +00:00
if (request_irq(pdev->irq, do_DC390_Interrupt, IRQF_SHARED,
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
"tmscsim", pACB)) {
printk(KERN_ERR "DC390: register IRQ error!\n");
goto out_release_region;
}
dc390_init_hw(pACB, dc390_adapterCnt);
dc390_adapterCnt++;
pci_set_drvdata(pdev, shost);
error = scsi_add_host(shost, &pdev->dev);
if (error)
goto out_free_irq;
scsi_scan_host(shost);
return 0;
out_free_irq:
free_irq(pdev->irq, pACB);
out_release_region:
release_region(io_port, shost->n_io_port);
out_host_put:
scsi_host_put(shost);
out_disable_device:
pci_disable_device(pdev);
out:
return error;
}
/**
* dc390_remove_one - Called to remove a single instance of the adapter.
*
* @dev: The PCI device to remove.
*/
static void __devexit dc390_remove_one(struct pci_dev *dev)
{
struct Scsi_Host *scsi_host = pci_get_drvdata(dev);
unsigned long iflags;
struct dc390_acb* pACB = (struct dc390_acb*) scsi_host->hostdata;
u8 bval;
scsi_remove_host(scsi_host);
spin_lock_irqsave(scsi_host->host_lock, iflags);
pACB->ACBFlag = RESET_DEV;
bval = DC390_read8(CtrlReg1) | DIS_INT_ON_SCSI_RST;
DC390_write8 (CtrlReg1, bval); /* disable interrupt */
if (pACB->Gmode2 & RST_SCSI_BUS)
dc390_ResetSCSIBus(pACB);
spin_unlock_irqrestore(scsi_host->host_lock, iflags);
free_irq(scsi_host->irq, pACB);
release_region(scsi_host->io_port, scsi_host->n_io_port);
pci_disable_device(dev);
scsi_host_put(scsi_host);
pci_set_drvdata(dev, NULL);
}
static struct pci_device_id tmscsim_pci_tbl[] = {
{ PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD53C974,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
{ }
};
MODULE_DEVICE_TABLE(pci, tmscsim_pci_tbl);
static struct pci_driver dc390_driver = {
.name = "tmscsim",
.id_table = tmscsim_pci_tbl,
.probe = dc390_probe_one,
.remove = __devexit_p(dc390_remove_one),
};
static int __init dc390_module_init(void)
{
[SCSI] tmscsim: fix indentation and braces disagreement - add braces Lucky winner is 557cc476c04 ([SCSI] tmscsim: Fixup KERN_INFO in printk). Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> Acked-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-10-30 10:58:38 +00:00
if (!disable_clustering) {
[SCSI] tmscsim: Fixup KERN_INFO in printk Multiline kernel messages should contain a priority in every line, besides, some log daemons represent a tabulator as "^I", fix both these issues. Signed-off-by: Nick Warne <nick@ukfsn.org> Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-08-16 22:00:44 +00:00
printk(KERN_INFO "DC390: clustering now enabled by default. If you get problems load\n");
printk(KERN_INFO " with \"disable_clustering=1\" and report to maintainers\n");
[SCSI] tmscsim: fix indentation and braces disagreement - add braces Lucky winner is 557cc476c04 ([SCSI] tmscsim: Fixup KERN_INFO in printk). Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> Acked-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-10-30 10:58:38 +00:00
}
[SCSI] enable clustering for tmscsim following an email from John Adams <johna@onevista.com> to me with a patch to enable tmscsim to use blocks up to 1MB and a discussion on linux-scsi, below is a patch to enable clustering for tmscsim. I made it switchable with a module parameter, with default "enable" - in case somebody gets problems with it. Unfortunately, I was not able to check if this alone lets you use any bigger blocks with a tape, as my tape seems to only support 1 block size - only "mt setblk 1" is successful, any other value fails. OTOH, testing on a P-133 showed that enabling clustering alone improves throughput by 10% and reduces CPU load by another 10%, so, seems a worthy thing to do. As for setting max_sectors, that might become a separate patch... Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2006-10-01 10:00:47 +00:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
if (tmscsim[0] == -1 || tmscsim[0] > 15) {
tmscsim[0] = 7;
tmscsim[1] = 4;
tmscsim[2] = PARITY_CHK_ | TAG_QUEUEING_;
tmscsim[3] = MORE2_DRV | GREATER_1G | RST_SCSI_BUS | ACTIVE_NEGATION;
tmscsim[4] = 2;
tmscsim[5] = 10;
printk (KERN_INFO "DC390: Using safe settings.\n");
}
Fix compile of tmscsim SCSI driver It still used the long-deprecated "pci_module_init()" interface, rather than the proper "pci_register_driver()" one. [ I don't have the hardware, and I doubt many do, but the fix is trivial and obvious, and can't be worse than not compiling ] Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-05 21:23:40 +00:00
return pci_register_driver(&dc390_driver);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-16 22:20:36 +00:00
}
static void __exit dc390_module_exit(void)
{
pci_unregister_driver(&dc390_driver);
}
module_init(dc390_module_init);
module_exit(dc390_module_exit);
#ifndef MODULE
static int __init dc390_setup (char *str)
{
int ints[8],i, im;
get_options(str, ARRAY_SIZE(ints), ints);
im = ints[0];
if (im > 6) {
printk (KERN_NOTICE "DC390: ignore extra params!\n");
im = 6;
}
for (i = 0; i < im; i++)
tmscsim[i] = ints[i+1];
/* dc390_checkparams (); */
return 1;
}
__setup("tmscsim=", dc390_setup);
#endif