patch-2.1.125 linux/drivers/scsi/aic7xxx.c
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- Lines: 8112
- Date:
Thu Oct 8 08:07:34 1998
- Orig file:
v2.1.124/linux/drivers/scsi/aic7xxx.c
- Orig date:
Mon Sep 28 10:51:34 1998
diff -u --recursive --new-file v2.1.124/linux/drivers/scsi/aic7xxx.c linux/drivers/scsi/aic7xxx.c
@@ -98,7 +98,7 @@
/*+M**************************************************************************
*
- * Further driver modifications made by Doug Ledford <dledford@dialnet.net>
+ * Further driver modifications made by Doug Ledford <dledford@redhat.com>
*
* Copyright (c) 1997-1998 Doug Ledford
*
@@ -163,6 +163,147 @@
*
*_M*************************************************************************/
+/*
+ * The next three defines are user configurable. These should be the only
+ * defines a user might need to get in here and change. There are other
+ * defines buried deeper in the code, but those really shouldn't need touched
+ * under normal conditions.
+ */
+
+/*
+ * AIC7XXX_FAKE_NEGOTIATION_CMDS
+ * We now have two distinctly different methods of device negotiation
+ * in this code. The two methods are selected by either defining or not
+ * defining this option. The difference is as follows:
+ *
+ * With AIC7XXX_FAKE_NEGOTIATION_CMDS not set (commented out)
+ * When the driver is in need of issuing a negotiation command for any
+ * given device, it will add the negotiation message on to part of a
+ * regular SCSI command for the device. In the process, if the device
+ * is configured for and using tagged queueing, then the code will
+ * also issue that single command as a non-tagged command, attach the
+ * negotiation message to that one command, and use a temporary
+ * queue depth of one to keep the untagged and tagged commands from
+ * overlapping.
+ * Pros: This doesn't use any extra SCB structures, it's simple, it
+ * works most of the time (if not all of the time now), and
+ * since we get the device capability info frmo the INQUIRY data
+ * now, shouldn't cause any problems.
+ * Cons: When we need to send a negotiation command to a device, we
+ * must use a command that is being sent to LUN 0 of the device.
+ * If we try sending one to high LUN numbers, then some devices
+ * get noticeably upset. Since we have to wait for a command with
+ * LUN == 0 to come along, we may not be able to renegotiate when
+ * we want if the user is actually using say LUN 1 of a CD Changer
+ * instead of using LUN 0 for an extended period of time.
+ *
+ * With AIC7XXX_FAKE_NEGOTIATION_CMDS defined
+ * When we need to negotiate with a device, instead of attaching our
+ * negotiation message to an existing command, we insert our own
+ * fictional Scsi_Cmnd into the chain that has the negotiation message
+ * attached to it. We send this one command as untagged regardless
+ * of the device type, and we fiddle with the queue depth the same as
+ * we would with the option unset to avoid overlapping commands. The
+ * primary difference between this and the unset option is that the
+ * negotiation message is no longer attached to a specific command,
+ * instead it is its own command and is merely triggered by a
+ * combination of both A) We need to negotiate and B) The mid level
+ * SCSI code has sent us a command. We still don't do any negotiation
+ * unless there is a valid SCSI command to be processed.
+ * Pros: This fixes the problem above in the Cons section. Since we
+ * issue our own fake command, we can set the LUN to 0 regardless
+ * of what the LUN is in the real command. It also means that if
+ * the device get's nasty over negotiation issues, it won't be
+ * showing up on a regular command, so we won't get any SENSE buffer
+ * data or STATUS_BYTE returns to the mid level code that are caused
+ * by snits in the negotiation code.
+ * Cons: We add more code, and more complexity. This means more ways
+ * in which things could break. It means a larger driver. It means
+ * more resource consumption for the fake commands. However, the
+ * biggest problem is this. Take a system where there is a CD-ROM
+ * on the SCSI bus. Someone has a CD in the CD-ROM and is using it.
+ * For some reason the SCSI bus gets reset. We don't touch the
+ * CD-ROM again for quite a period of time (so we don't renegotiate
+ * after the reset until we do touch the CD-ROM again). In the
+ * time while we aren't using the CD-ROM, the current disc is
+ * removed and a new one put in. When we go to check that disc, we
+ * will first have to renegotiate. In so doing, we issue our fake
+ * SCSI command, which happens to be TEST_UNIT_READY. The CD-ROM
+ * negotiates with us, then responds to our fake command with a
+ * CHECK_CONDITION status. We REQUEST_SENSE from the CD-ROM, it
+ * then sends the SENSE data to our fake command to tell it that
+ * it has been through a disc change. There, now we've cleared out
+ * the SENSE data along with our negotiation command, and when the
+ * real command executes, it won't pick up that the CD was changed.
+ * That's the biggest Con to this approach. In the future, I could
+ * probably code around this problem though, so this option is still
+ * viable.
+ *
+ * So, which command style should you use? I would appreciate it if people
+ * could try out both types. I want to know about any cases where one
+ * method works and the other doesn't. If one method works on significantly
+ * more systems than another, then it will become the default. If the second
+ * option turns out to work best, then I'll find a way to work around that
+ * big con I listed.
+ *
+ * -- July 7, 02:33
+ * OK...I just added some code that should make the Con listed for the
+ * fake commands a non issue now. However, it needs testing. For now,
+ * I'm going to make the default to use the fake commands, we'll see how
+ * it goes.
+ */
+
+#define AIC7XXX_FAKE_NEGOTIATION_CMDS
+
+/*
+ * AIC7XXX_STRICT_PCI_SETUP
+ * Should we assume the PCI config options on our controllers are set with
+ * sane and proper values, or should we be anal about our PCI config
+ * registers and force them to what we want? The main advantage to
+ * defining this option is on non-Intel hardware where the BIOS may not
+ * have been run to set things up, or if you have one of the BIOSless
+ * Adaptec controllers, such as a 2910, that don't get set up by the
+ * BIOS. However, keep in mind that we really do set the most important
+ * items in the driver regardless of this setting, this only controls some
+ * of the more esoteric PCI options on these cards. In that sense, I
+ * would default to leaving this off. However, if people wish to try
+ * things both ways, that would also help me to know if there are some
+ * machines where it works one way but not another.
+ *
+ * -- July 7, 17:09
+ * OK...I need this on my machine for testing, so the default is to
+ * leave it defined.
+ *
+ * -- July 7, 18:49
+ * I needed it for testing, but it didn't make any difference, so back
+ * off she goes.
+ *
+ * -- July 16, 23:04
+ * I turned it back on to try and compensate for the 2.1.x PCI code
+ * which no longer relies solely on the BIOS and now tries to set
+ * things itself.
+ */
+
+#define AIC7XXX_STRICT_PCI_SETUP
+
+/*
+ * AIC7XXX_VERBOSE_DEBUGGING
+ * This option enables a lot of extra printk();s in the code, surrounded
+ * by if (aic7xxx_verbose ...) statements. Executing all of those if
+ * statements and the extra checks can get to where it actually does have
+ * an impact on CPU usage and such, as well as code size. Disabling this
+ * define will keep some of those from becoming part of the code.
+ *
+ * NOTE: Currently, this option has no real effect, I will be adding the
+ * various #ifdef's in the code later when I've decided a section is
+ * complete and no longer needs debugging. OK...a lot of things are now
+ * surrounded by this define, so turning this off does have an impact.
+ */
+
+/*
+ * #define AIC7XXX_VERBOSE_DEBUGGING
+ */
+
#ifdef MODULE
#include <linux/module.h>
#endif
@@ -187,10 +328,10 @@
#include "hosts.h"
#include "aic7xxx.h"
+#include "aic7xxx/bsd_q.h"
#include "aic7xxx/sequencer.h"
#include "aic7xxx/scsi_message.h"
#include "aic7xxx_reg.h"
-#include "aic7xxx_seq.h"
#include <linux/stat.h>
#include <linux/malloc.h> /* for kmalloc() */
@@ -209,7 +350,7 @@
0, 0, 0, NULL, NULL, NULL, NULL, NULL, NULL, NULL
};
-#define AIC7XXX_C_VERSION "5.0.20"
+#define AIC7XXX_C_VERSION "5.1.0"
#define NUMBER(arr) (sizeof(arr) / sizeof(arr[0]))
#define MIN(a,b) (((a) < (b)) ? (a) : (b))
@@ -242,17 +383,15 @@
# include <linux/bios32.h>
#endif
-#if defined(__powerpc__) || defined(__i386__)
-# define MMAPIO
-#endif
-
#if defined(__powerpc__)
+# define MMAPIO
# ifdef mb
# undef mb
# endif
# define mb() \
__asm__ __volatile__("eieio" ::: "memory")
#elif defined(__i386__)
+# define MMAPIO
# ifdef mb
# undef mb
# endif
@@ -330,7 +469,7 @@
* tagged queue value array is always active now. I've added
* a setup option to set this particular array and I'm hoping
* insmod will be smart enough to set it properly as well. It's
- * by use of this array that a person can disable tagged queueing.
+ * by use of this array that a person can enable tagged queueing.
* The DEFAULT_TAG_COMMANDS define has been changed to disable
* tagged queueing by default, so if your devices can handle tagged
* queueing you will need to add a line to their lilo.conf file like:
@@ -396,6 +535,9 @@
*/
/*
+ * NOTE: The below structure is for reference only, the actual structure
+ * to modify in order to change things is located around line
+ * number 1305
adapter_tag_info_t aic7xxx_tag_info[] =
{
{DEFAULT_TAG_COMMANDS},
@@ -429,7 +571,11 @@
"Adaptec AHA-394X Ultra SCSI host adapter", /* AIC_7882 */
"Adaptec AHA-398X Ultra SCSI host adapter", /* AIC_7883 */
"Adaptec AHA-2944 Ultra SCSI host adapter", /* AIC_7884 */
- "Adaptec AIC-7895 Ultra SCSI host adapter" /* AIC_7895 */
+ "Adaptec AIC-7895 Ultra SCSI host adapter", /* AIC_7895 */
+ "Adaptec AIC-7890/1 Ultra2 SCSI host adapter", /* AIC_7890 */
+ "Adaptec AHA-294X Ultra2 SCSI host adapter", /* AIC_7890 */
+ "Adaptec AIC-7896/7 Ultra2 SCSI host adapter", /* AIC_7896 */
+ "Adaptec AHA-394X Ultra2 SCSI host adapter" /* AIC_7897 */
};
/*
@@ -467,10 +613,10 @@
/*
* Standard EISA Host ID regs (Offset from slot base)
*/
-#define HID0 0x80 /* 0,1: msb of ID2, 2-7: ID1 */
-#define HID1 0x81 /* 0-4: ID3, 5-7: LSB ID2 */
-#define HID2 0x82 /* product */
-#define HID3 0x83 /* firmware revision */
+#define AHC_HID0 0x80 /* 0,1: msb of ID2, 2-7: ID1 */
+#define AHC_HID1 0x81 /* 0-4: ID3, 5-7: LSB ID2 */
+#define AHC_HID2 0x82 /* product */
+#define AHC_HID3 0x83 /* firmware revision */
/*
* AIC-7770 I/O range to reserve for a card
@@ -494,11 +640,13 @@
#define LATTIME 0x0000FF00ul
#define DEVCONFIG 0x40
-#define SCBSIZE32 0x00010400ul /* aic789X only */
+#define SCBSIZE32 0x00010000ul /* aic789X only */
#define MPORTMODE 0x00000400ul /* aic7870 only */
#define RAMPSM 0x00000200ul /* aic7870 only */
+#define RAMPSM_ULTRA2 0x00000004
#define VOLSENSE 0x00000100ul
#define SCBRAMSEL 0x00000080ul
+#define SCBRAMSEL_ULTRA2 0x00000008
#define MRDCEN 0x00000040ul
#define EXTSCBTIME 0x00000020ul /* aic7870 only */
#define EXTSCBPEN 0x00000010ul /* aic7870 only */
@@ -507,6 +655,8 @@
#define STPWLEVEL 0x00000002ul
#define DIFACTNEGEN 0x00000001ul /* aic7870 only */
+#define SCAMCTL 0x1a /* Ultra2 only */
+#define CCSCBBADDR 0xf0 /* aic7895/6/7 */
/*
* Define the different types of SEEPROMs on aic7xxx adapters
@@ -569,7 +719,9 @@
#define CF284XSTERM 0x0020 /* SCSI low byte termination (284x cards) */
#define CFRESETB 0x0040 /* reset SCSI bus at boot */
#define CFBPRIMARY 0x0100 /* Channel B primary on 7895 chipsets */
-/* UNUSED 0xFE80 */
+#define CFSEAUTOTERM 0x0400 /* aic7890 Perform SE Auto Term */
+#define CFLVDSTERM 0x0800 /* aic7890 LVD Termination */
+/* UNUSED 0xF280 */
unsigned short adapter_control; /* word 17 */
/*
@@ -682,7 +834,6 @@
typedef enum {
SCB_FREE = 0x0000,
- SCB_WDTR_16BIT = 0x0001,
SCB_WAITINGQ = 0x0002,
SCB_ACTIVE = 0x0004,
SCB_SENSE = 0x0008,
@@ -691,11 +842,12 @@
SCB_RESET = 0x0040,
SCB_RECOVERY_SCB = 0x0080,
SCB_WAS_BUSY = 0x0100,
+ SCB_MSGOUT_SENT = 0x0200,
SCB_MSGOUT_SDTR = 0x0400,
SCB_MSGOUT_WDTR = 0x0800,
- SCB_MSGOUT_WDTR_8BIT = 0x0800,
- SCB_MSGOUT_WDTR_16BIT = 0x0801,
- SCB_MSGOUT_BITS = SCB_MSGOUT_SDTR | SCB_MSGOUT_WDTR_16BIT,
+ SCB_MSGOUT_BITS = SCB_MSGOUT_SENT |
+ SCB_MSGOUT_SDTR |
+ SCB_MSGOUT_WDTR,
SCB_QUEUED_ABORT = 0x1000,
SCB_QUEUED_FOR_DONE = 0x2000
} scb_flag_type;
@@ -711,7 +863,9 @@
AHC_EXTEND_TRANS_A = 0x00000100,
AHC_EXTEND_TRANS_B = 0x00000200,
AHC_TERM_ENB_A = 0x00000400,
+ AHC_TERM_ENB_SE_LOW = 0x00000400,
AHC_TERM_ENB_B = 0x00000800,
+ AHC_TERM_ENB_SE_HIGH = 0x00000800,
AHC_HANDLING_REQINITS = 0x00001000,
AHC_TARGETMODE = 0x00002000,
AHC_NEWEEPROM_FMT = 0x00004000,
@@ -726,45 +880,62 @@
AHC_B_SCANNED = 0x00200000,
AHC_MULTI_CHANNEL = 0x00400000,
AHC_BIOS_ENABLED = 0x00800000,
- AHC_ABORT_PENDING = 0x02000000,
- AHC_RESET_PENDING = 0x04000000,
+ AHC_SEEPROM_FOUND = 0x01000000,
+ AHC_TERM_ENB_LVD = 0x02000000,
+ AHC_ABORT_PENDING = 0x04000000,
+ AHC_RESET_PENDING = 0x08000000,
#define AHC_IN_ISR_BIT 28
AHC_IN_ISR = 0x10000000,
AHC_IN_ABORT = 0x20000000,
- AHC_IN_RESET = 0x40000000
+ AHC_IN_RESET = 0x40000000,
+ AHC_EXTERNAL_SRAM = 0x80000000
} ahc_flag_type;
typedef enum {
- AHC_NONE = 0x00000000,
- AHC_ULTRA = 0x00000001,
- AHC_WIDE = 0x00000002,
- AHC_TWIN = 0x00000008,
- AHC_AIC7770 = 0x00000010,
- AHC_AIC7850 = 0x00000020,
- AHC_AIC7860 = 0x00000021,
- AHC_AIC7870 = 0x00000040,
- AHC_AIC7880 = 0x00000041,
- AHC_AIC7895 = 0x00000081,
- AHC_AIC78x0 = 0x000000E0,
- AHC_274 = 0x00000110,
- AHC_284 = 0x00000210,
- AHC_294AU = 0x00000421,
- AHC_294 = 0x00000440,
- AHC_294U = 0x00000441,
- AHC_394 = 0x00000840,
- AHC_394U = 0x00000841,
- AHC_394AU = 0x00000881,
- AHC_398 = 0x00001040,
- AHC_398U = 0x00001041,
- AHC_39x = 0x00001880
-} ahc_type;
+ AHC_NONE = 0x0000,
+ AHC_CHIPID_MASK = 0x00ff,
+ AHC_AIC7770 = 0x0001,
+ AHC_AIC7850 = 0x0002,
+ AHC_AIC7860 = 0x0003,
+ AHC_AIC7870 = 0x0004,
+ AHC_AIC7880 = 0x0005,
+ AHC_AIC7890 = 0x0006,
+ AHC_AIC7895 = 0x0007,
+ AHC_AIC7896 = 0x0008,
+ AHC_VL = 0x0100,
+ AHC_EISA = 0x0200,
+ AHC_PCI = 0x0400,
+} ahc_chip;
+
+typedef enum {
+ AHC_FENONE = 0x0000,
+ AHC_ULTRA = 0x0001,
+ AHC_ULTRA2 = 0x0002,
+ AHC_WIDE = 0x0004,
+ AHC_TWIN = 0x0008,
+ AHC_MORE_SRAM = 0x0010,
+ AHC_CMD_CHAN = 0x0020,
+ AHC_QUEUE_REGS = 0x0040,
+ AHC_SG_PRELOAD = 0x0080,
+ AHC_SPIOCAP = 0x0100,
+ AHC_AIC7770_FE = AHC_FENONE,
+ AHC_AIC7850_FE = AHC_SPIOCAP,
+ AHC_AIC7860_FE = AHC_ULTRA|AHC_SPIOCAP,
+ AHC_AIC7870_FE = AHC_FENONE,
+ AHC_AIC7880_FE = AHC_ULTRA,
+ AHC_AIC7890_FE = AHC_MORE_SRAM|AHC_CMD_CHAN|AHC_ULTRA2|
+ AHC_QUEUE_REGS|AHC_SG_PRELOAD,
+ AHC_AIC7895_FE = AHC_MORE_SRAM|AHC_CMD_CHAN|AHC_ULTRA,
+ AHC_AIC7896_FE = AHC_AIC7890_FE,
+} ahc_feature;
struct aic7xxx_scb {
struct aic7xxx_hwscb *hscb; /* corresponding hardware scb */
Scsi_Cmnd *cmd; /* Scsi_Cmnd for this scb */
struct aic7xxx_scb *q_next; /* next scb in queue */
- scb_flag_type flags; /* current state of scb */
+ volatile scb_flag_type flags; /* current state of scb */
struct hw_scatterlist *sg_list; /* SG list in adapter format */
+ void *kmalloc_ptr;
unsigned char tag_action;
unsigned char sg_count;
unsigned char sense_cmd[6]; /*
@@ -792,28 +963,50 @@
{ ILLHADDR, "Illegal Host Access" },
{ ILLSADDR, "Illegal Sequencer Address referenced" },
{ ILLOPCODE, "Illegal Opcode in sequencer program" },
- { SQPARERR, "Sequencer Ram Parity Error" }
+ { SQPARERR, "Sequencer Ram Parity Error" },
+ { DPARERR, "Data-Path Ram Parity Error" },
+ { MPARERR, "Scratch Ram/SCB Array Ram Parity Error" },
+ { PCIERRSTAT,"PCI Error detected" },
+ { CIOPARERR, "CIOBUS Parity Error" }
};
static unsigned char
generic_sense[] = { REQUEST_SENSE, 0, 0, 0, 255, 0 };
typedef struct {
- struct aic7xxx_hwscb *hscbs;
scb_queue_type free_scbs; /*
* SCBs assigned to free slot on
* card (no paging required)
*/
+ struct aic7xxx_scb *scb_array[AIC7XXX_MAXSCB];
+ struct aic7xxx_hwscb *hscbs;
unsigned char numscbs; /* current number of scbs */
unsigned char maxhscbs; /* hardware scbs */
unsigned char maxscbs; /* max scbs including pageable scbs */
- struct aic7xxx_scb *scb_array[AIC7XXX_MAXSCB];
+ void *hscb_kmalloc_ptr;
} scb_data_type;
+struct target_cmd {
+ unsigned char mesg_bytes[4];
+ unsigned char command[28];
+};
+
+#define AHC_TRANS_CUR 0x0001
+#define AHC_TRANS_ACTIVE 0x0002
+#define AHC_TRANS_GOAL 0x0004
+#define AHC_TRANS_USER 0x0008
+#define AHC_TRANS_QUITE 0x0010
typedef struct {
- unsigned char period;
- unsigned char offset;
-} syncinfo_type;
+ unsigned char cur_width;
+ unsigned char goal_width;
+ unsigned char cur_period;
+ unsigned char goal_period;
+ unsigned char cur_offset;
+ unsigned char goal_offset;
+ unsigned char user_width;
+ unsigned char user_period;
+ unsigned char user_offset;
+} transinfo_type;
/*
* Define a structure used for each host adapter. Note, in order to avoid
@@ -841,15 +1034,18 @@
spinlock_t spin_lock;
#endif
volatile unsigned char cpu_lock_count[NR_CPUS];
- ahc_type type; /* card type */
+ ahc_chip chip; /* chip type */
+ ahc_feature features; /* chip features */
unsigned long last_reset;
unsigned long isr_count; /* Interrupt count */
unsigned long spurious_int;
+ struct target_cmd *targetcmds;
+ unsigned int num_targetcmds;
unsigned short discenable; /* Targets allowed to disconnect */
unsigned short tagenable; /* Targets using tagged I/O */
unsigned short orderedtag; /* Ordered Q tags allowed */
volatile unsigned char activescbs; /* active scbs */
- unsigned char max_activescbs;
+ volatile unsigned char max_activescbs;
unsigned char unpause; /* unpause value for HCNTRL */
unsigned char pause; /* pause value for HCNTRL */
volatile unsigned char qoutfifonext;
@@ -870,7 +1066,7 @@
#define DEVICE_SCANNED 0x80
volatile unsigned char dev_flags[MAX_TARGETS];
volatile unsigned char dev_active_cmds[MAX_TARGETS];
- unsigned char dev_temp_queue_depth[MAX_TARGETS];
+ volatile unsigned char dev_temp_queue_depth[MAX_TARGETS];
unsigned char dev_commands_sent[MAX_TARGETS];
/*
@@ -917,7 +1113,7 @@
#define MSG_TYPE_INITIATOR_MSGIN 0x02
unsigned char msg_len; /* Length of message */
unsigned char msg_index; /* Index into msg_buf array */
- syncinfo_type syncinfo[MAX_TARGETS];
+ transinfo_type transinfo[MAX_TARGETS];
volatile scb_queue_type waiting_scbs; /*
* SCBs waiting for space in
* the QINFIFO.
@@ -945,10 +1141,10 @@
volatile unsigned char qoutfifo[256];
volatile unsigned char qinfifo[256];
unsigned int irq; /* IRQ for this adapter */
- unsigned short needsdtr;
- unsigned short sdtr_pending;
- unsigned short needwdtr;
- unsigned short wdtr_pending;
+ volatile unsigned short needsdtr;
+ volatile unsigned short sdtr_pending;
+ volatile unsigned short needwdtr;
+ volatile unsigned short wdtr_pending;
int instance; /* aic7xxx instance number */
int scsi_id; /* host adapter SCSI ID */
int scsi_id_b; /* channel B for twin adapters */
@@ -965,8 +1161,10 @@
#endif
unsigned char pci_bus;
unsigned char pci_device_fn;
+ struct seeprom_config sc;
+ unsigned short sc_type;
+ unsigned short sc_size;
-#ifdef AIC7XXX_PROC_STATS
/*
* Statistics Kept:
*
@@ -980,18 +1178,21 @@
*
* NOTE: Enabling this feature is likely to cause a noticeable performance
* decrease as the accesses into the stats structures blows apart multiple
- * cache lines and is CPU time consuming.
+ * cache lines and is CPU time consuming. We keep the xfer count always
+ * for use by the aic7xxx_proc.c code, but only do the bins if the
+ * proc stats code is enabled.
*/
struct aic7xxx_xferstats {
long xfers; /* total xfer count */
long w_total; /* total writes */
long w_total512; /* 512 byte blocks written */
- long w_bins[10]; /* binned write */
long r_total; /* total reads */
long r_total512; /* 512 byte blocks read */
+#ifdef AIC7XXX_PROC_STATS
+ long w_bins[10]; /* binned write */
long r_bins[10]; /* binned reads */
- } stats[MAX_TARGETS][MAX_LUNS]; /* [(channel << 3)|target][lun] */
#endif /* AIC7XXX_PROC_STATS */
+ } stats[MAX_TARGETS][MAX_LUNS]; /* [(channel << 3)|target][lun] */
};
/*
@@ -999,29 +1200,33 @@
* Provides a mapping of transfer periods in ns/4 to the proper value to
* stick in the SCSIRATE reg to use that transfer rate.
*/
-static struct {
- short period;
+#define AHC_SYNCRATE_ULTRA2 0
+#define AHC_SYNCRATE_ULTRA 2
+#define AHC_SYNCRATE_FAST 5
+static struct aic7xxx_syncrate {
/* Rates in Ultra mode have bit 8 of sxfr set */
#define ULTRA_SXFR 0x100
- short rate;
- const char *english;
+ int sxfr_ultra2;
+ int sxfr;
+ unsigned char period;
+ const char *rate[2];
} aic7xxx_syncrates[] = {
- { 12, 0x100, "20.0" },
- { 15, 0x110, "16.0" },
- { 18, 0x120, "13.4" },
- { 25, 0x000, "10.0" },
- { 31, 0x010, "8.0" },
- { 37, 0x020, "6.67" },
- { 43, 0x030, "5.7" },
- { 50, 0x040, "5.0" },
- { 56, 0x050, "4.4" },
- { 62, 0x060, "4.0" },
- { 68, 0x070, "3.6" }
+ { 0x13, 0x000, 10, {"40.0", "80.0"} },
+ { 0x14, 0x000, 11, {"33.0", "66.6"} },
+ { 0x15, 0x100, 12, {"20.0", "40.0"} },
+ { 0x16, 0x110, 15, {"16.0", "32.0"} },
+ { 0x17, 0x120, 18, {"13.4", "26.8"} },
+ { 0x18, 0x000, 25, {"10.0", "20.0"} },
+ { 0x19, 0x010, 31, {"8.0", "16.0"} },
+ { 0x1a, 0x020, 37, {"6.67", "13.3"} },
+ { 0x1b, 0x030, 43, {"5.7", "11.4"} },
+ { 0x10, 0x040, 50, {"5.0", "10.0"} },
+ { 0x00, 0x050, 56, {"4.4", "8.8" } },
+ { 0x00, 0x060, 62, {"4.0", "8.0" } },
+ { 0x00, 0x070, 68, {"3.6", "7.2" } },
+ { 0x00, 0x000, 0, {NULL, NULL} },
};
-static int num_aic7xxx_syncrates =
- sizeof(aic7xxx_syncrates) / sizeof(aic7xxx_syncrates[0]);
-
#define CTL_OF_SCB(scb) (((scb->hscb)->target_channel_lun >> 3) & 0x1), \
(((scb->hscb)->target_channel_lun >> 4) & 0xf), \
((scb->hscb)->target_channel_lun & 0x07)
@@ -1041,58 +1246,170 @@
/*
* XXX - these options apply unilaterally to _all_ 274x/284x/294x
- * cards in the system. This should be fixed.
+ * cards in the system. This should be fixed. Exceptions to this
+ * rule are noted in the comments.
*/
-static int aic7xxx_7895_irq_hack = -1; /* This enables a hack to fix
- * IRQ settings on buggy 7895
- * MB controller setups
- * -1 == Disable this hack
- * 0 == Use the Channel A IRQ
- * 1 == Use the Channel B IRQ
- */
-static unsigned int aic7xxx_extended = 0; /* extended translation on? */
-static unsigned int aic7xxx_no_reset = 0; /* no resetting of SCSI bus */
-static int aic7xxx_irq_trigger = -1; /*
- * -1 use board setting
- * 0 use edge triggered
- * 1 use level triggered
- */
-static int aic7xxx_reverse_scan = 0; /*
- * Set this to anything but 0
- * to make the probe code
- * reverse the order of PCI
- * devices
- */
-static int aic7xxx_override_term = 0; /*
- * Set this to non-0 to make the
- * driver override any BIOS
- * configured termination
- * settings based upon the
- * results of the cable detect
- * logic. This only applies
- * to cards that have cable
- * detection logic and a SEEPROM
- */
-static int aic7xxx_panic_on_abort = 0; /*
- * Set this to non-0 in order
- * to force the driver to panic
- * the kernel and print out
- * debugging info on an abort
- * or reset call into the
- * driver.
- */
-static int aic7xxx_pci_parity = 0; /*
- * Set this to:
- * 0 - Shut off PCI parity check
- * -1 - Normal parity check
- * anything else - reverse pci
- * pci parity checking
- */
+
+
+/*
+ * Skip the scsi bus reset. Non 0 make us skip the reset at startup. This
+ * has no effect on any later resets that might occur due to things like
+ * SCSI bus timeouts.
+ */
+static unsigned int aic7xxx_no_reset = 0;
+/*
+ * Certain PCI motherboards will scan PCI devices from highest to lowest,
+ * others scan from lowest to highest, and they tend to do all kinds of
+ * strange things when they come into contact with PCI bridge chips. The
+ * net result of all this is that the PCI card that is actually used to boot
+ * the machine is very hard to detect. Most motherboards go from lowest
+ * PCI slot number to highest, and the first SCSI controller found is the
+ * one you boot from. The only exceptions to this are when a controller
+ * has its BIOS disabled. So, we by default sort all of our SCSI controllers
+ * from lowest PCI slot number to highest PCI slot number. We also force
+ * all controllers with their BIOS disabled to the end of the list. This
+ * works on *almost* all computers. Where it doesn't work, we have this
+ * option. Setting this option to non-0 will reverse the order of the sort
+ * to highest first, then lowest, but will still leave cards with their BIOS
+ * disabled at the very end. That should fix everyone up unless there are
+ * really strange cirumstances.
+ */
+static int aic7xxx_reverse_scan = 0;
+/*
+ * This setting enables a hack to fix the IRQ settings on buggy 7895
+ * MB controller setups:
+ * -1 == Disable this hack
+ * 0 == Use the Channel A IRQ for both channels
+ * 1 == Use the Channel B IRQ for both channels
+ */
+static unsigned int aic7xxx_extended = 0;
+/*
+ * The IRQ trigger method used on EISA controllers. Does not effect PCI cards.
+ * -1 = Use detected settings.
+ * 0 = Force Edge triggered mode.
+ * 1 = Force Level triggered mode.
+ */
+static int aic7xxx_irq_trigger = -1;
+/*
+ * This variable is used to override the termination settings on a controller.
+ * This should not be used under normal conditions. However, in the case
+ * that a controller does not have a readable SEEPROM (so that we can't
+ * read the SEEPROM settings directly) and that a controller has a buggered
+ * version of the cable detection logic, this can be used to force the
+ * correct termination. It is preferable to use the manual termination
+ * settings in the BIOS if possible, but some motherboard controllers store
+ * those settings in a format we can't read. In other cases, auto term
+ * should also work, but the chipset was put together with no auto term
+ * logic (common on motherboard controllers). In those cases, we have
+ * 32 bits here to work with. That's good for 8 controllers/channels. The
+ * bits are organized as 4 bits per channel, with scsi0 getting the lowest
+ * 4 bits in the int. A 1 in a bit position indicates the termination setting
+ * that corresponds to that bit should be enabled, a 0 is disabled.
+ * It looks something like this:
+ *
+ * 0x0f = 1111-Single Ended Low Byte Termination on/off
+ * ||\-Single Ended High Byte Termination on/off
+ * |\-LVD Low Byte Termination on/off
+ * \-LVD High Byte Termination on/off
+ *
+ * For non-Ultra2 controllers, the upper 2 bits are not important. So, to
+ * enable both high byte and low byte termination on scsi0, I would need to
+ * make sure that the override_term variable was set to 0x03 (bits 0011).
+ * To make sure that all termination is enabled on an Ultra2 controller at
+ * scsi2 and only high byte termination on scsi1 and high and low byte
+ * termination on scsi0, I would set override_term=0xf23 (bits 1111 0010 0011)
+ *
+ * For the most part, users should never have to use this, that's why I
+ * left it fairly cryptic instead of easy to understand. If you need it,
+ * most likely someone will be telling you what your's needs to be set to.
+ */
+static int aic7xxx_override_term = -1;
+/*
+ * Certain motherboard chipset controllers tend to screw
+ * up the polarity of the term enable output pin. Use this variable
+ * to force the correct polarity for your system. This is a bitfield variable
+ * similar to the previous one, but this one has one bit per channel instead
+ * of four.
+ * 0 = Force the setting to active low.
+ * 1 = Force setting to active high.
+ * Most Adaptec cards are active high, several motherboards are active low.
+ * To force a 2940 card at SCSI 0 to active high and a motherboard 7895
+ * controller at scsi1 and scsi2 to active low, and a 2910 card at scsi3
+ * to active high, you would need to set stpwlev=0x9 (bits 1001).
+ *
+ * People shouldn't need to use this, but if you are experiencing lots of
+ * SCSI timeout problems, this may help. There is one sure way to test what
+ * this option needs to be. Using a boot floppy to boot the system, configure
+ * your system to enable all SCSI termination (in the Adaptec SCSI BIOS) and
+ * if needed then also pass a value to override_term to make sure that the
+ * driver is enabling SCSI termination, then set this variable to either 0
+ * or 1. When the driver boots, make sure there are *NO* SCSI cables
+ * connected to your controller. If it finds and inits the controller
+ * without problem, then the setting you passed to stpwlev was correct. If
+ * the driver goes into a reset loop and hangs the system, then you need the
+ * other setting for this variable. If neither setting lets the machine
+ * boot then you have definite termination problems that may not be fixable.
+ */
+static int aic7xxx_stpwlev = -1;
+/*
+ * Set this to non-0 in order to force the driver to panic the kernel
+ * and print out debugging info on a SCSI abort or reset cycle.
+ */
+static int aic7xxx_panic_on_abort = 0;
+/*
+ * PCI bus parity checking of the Adaptec controllers. This is somewhat
+ * dubious at best. To my knowledge, this option has never actually
+ * solved a PCI parity problem, but on certain machines with broken PCI
+ * chipset configurations, it can generate tons of false error messages.
+ * It's included in the driver for completeness.
+ * 0 = Shut off PCI parity check
+ * -1 = Normal polarity pci parity checking
+ * 1 = reverse polarity pci parity checking
+ *
+ * NOTE: you can't actually pass -1 on the lilo prompt. So, to set this
+ * variable to -1 you would actually want to simply pass the variable
+ * name without a number. That will invert the 0 which will result in
+ * -1.
+ */
+static int aic7xxx_pci_parity = 0;
+/*
+ * Set this to any non-0 value to cause us to dump the contents of all
+ * the card's registers in a hex dump format tailored to each model of
+ * controller.
+ *
+ * NOTE: THE CONTROLLER IS LEFT IN AN UNUSEABLE STATE BY THIS OPTION.
+ * YOU CANNOT BOOT UP WITH THIS OPTION, IT IS FOR DEBUGGING PURPOSES
+ * ONLY
+ */
+static int aic7xxx_dump_card = 0;
+/*
+ * Set this to a non-0 value to make us dump out the 32 bit instruction
+ * registers on the card after completing the sequencer download. This
+ * allows the actual sequencer download to be verified. It is possible
+ * to use this option and still boot up and run your system. This is
+ * only intended for debugging purposes.
+ */
+static int aic7xxx_dump_sequencer = 0;
+/*
+ * Certain newer motherboards have put new PCI based devices into the
+ * IO spaces that used to typically be occupied by VLB or EISA cards.
+ * This overlap can cause these newer motherboards to lock up when scanned
+ * for older EISA and VLB devices. Setting this option to non-0 will
+ * cause the driver to skip scanning for any VLB or EISA controllers and
+ * only support the PCI controllers. NOTE: this means that if the kernel
+ * os compiled with PCI support disabled, then setting this to non-0
+ * would result in never finding any devices :)
+ */
+static int aic7xxx_no_probe = 0;
+
/*
* So that insmod can find the variable and make it point to something
*/
#ifdef MODULE
static char * aic7xxx = NULL;
+#if LINUX_VERSION_CODE > KERNEL_VERSION(2,1,18)
+MODULE_PARM(aic7xxx, "s");
+#endif
/*
* Just in case someone uses commas to separate items on the insmod
@@ -1138,9 +1455,9 @@
#define VERBOSE_SCSIINT 0x0004
#define VERBOSE_PROBE 0x0008
#define VERBOSE_PROBE2 0x0010
-#define VERBOSE_QUEUE 0x0020
+#define VERBOSE_NEGOTIATION2 0x0020
#define VERBOSE_MINOR_ERROR 0x0040
-#define VERBOSE_QUEUE_FULL 0x0080
+#define VERBOSE_TRACING 0x0080
#define VERBOSE_ABORT 0x0f00
#define VERBOSE_ABORT_MID 0x0100
#define VERBOSE_ABORT_FIND 0x0200
@@ -1157,49 +1474,95 @@
/****************************************************************************
*
- * These functions are not used yet, but when we do memory mapped
- * IO, we'll use them then.
+ * We're going to start putting in function declarations so that order of
+ * functions is no longer important. As needed, they are added here.
+ *
+ ***************************************************************************/
+
+static void aic7xxx_panic_abort(struct aic7xxx_host *p, Scsi_Cmnd *cmd);
+static void aic7xxx_print_card(struct aic7xxx_host *p);
+static void aic7xxx_print_scratch_ram(struct aic7xxx_host *p);
+#ifdef AIC7XXX_VERBOSE_DEBUGGING
+static void aic7xxx_print_sequencer(struct aic7xxx_host *p, int downloaded);
+static void aic7xxx_check_scbs(struct aic7xxx_host *p, char *buffer);
+#endif
+
+/****************************************************************************
+ *
+ * These functions are now used. They happen to be wrapped in useless
+ * inb/outb port read/writes around the real reads and writes because it
+ * seems that certain very fast CPUs have a problem dealing with us when
+ * going at full speed.
*
***************************************************************************/
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,1,0)
+static inline void
+mdelay(int milliseconds)
+{
+ int i;
+
+ for(i=0; i<milliseconds; i++)
+ udelay(1000);
+}
+#endif
static inline unsigned char
aic_inb(struct aic7xxx_host *p, long port)
{
+#ifdef MMAPIO
unsigned char x;
if(p->maddr)
+ {
x = p->maddr[port];
+ }
else
+ {
x = inb(p->base + port);
+ }
mb();
return(x);
+#else
+ return(inb(p->base + port));
+#endif
}
static inline void
aic_outb(struct aic7xxx_host *p, unsigned char val, long port)
{
+#ifdef MMAPIO
if(p->maddr)
+ {
p->maddr[port] = val;
+ }
else
+ {
outb(val, p->base + port);
+ }
mb();
+#else
+ outb(val, p->base + port);
+#endif
}
-static inline void
+static void
aic_outsb(struct aic7xxx_host *p, long port, unsigned char *valp, size_t size)
{
+#ifdef MMAPIO
if(p->maddr)
{
int i;
-
for (i=0; i < size; i++)
{
p->maddr[port] = valp[i];
}
+ mb();
}
else
outsb(p->base + port, valp, size);
- mb();
+#else
+ outsb(p->base + port, valp, size);
+#endif
}
/*+F*************************************************************************
@@ -1227,10 +1590,13 @@
{ "irq_trigger", &aic7xxx_irq_trigger },
{ "verbose", &aic7xxx_verbose },
{ "reverse_scan",&aic7xxx_reverse_scan },
- { "7895_irq_hack", &aic7xxx_7895_irq_hack },
{ "override_term", &aic7xxx_override_term },
+ { "stpwlev", &aic7xxx_stpwlev },
+ { "no_probe", &aic7xxx_no_probe },
{ "panic_on_abort", &aic7xxx_panic_on_abort },
{ "pci_parity", &aic7xxx_pci_parity },
+ { "dump_card", &aic7xxx_dump_card },
+ { "dump_sequencer", &aic7xxx_dump_sequencer },
{ "tag_info", NULL }
};
@@ -1327,7 +1693,7 @@
}
else if (!strncmp(p, "verbose", n))
{
- *(options[i].flag) = 0xff69;
+ *(options[i].flag) = 0xff09;
}
else
{
@@ -1387,54 +1753,64 @@
static inline void
restart_sequencer(struct aic7xxx_host *p)
{
- /* Set the sequencer address to 0. */
- aic_outb(p, 0, SEQADDR0);
- aic_outb(p, 0, SEQADDR1);
-
- /*
- * Reset and unpause the sequencer. The reset is suppose to
- * start the sequencer running, so we immediately do a pause_sequencer
- * since some of our code expects the sequencer paused after a restart
- */
- aic_outb(p, SEQRESET | FASTMODE, SEQCTL);
- pause_sequencer(p);
+ aic_outb(p, FASTMODE|SEQRESET, SEQCTL);
}
+/*
+ * We include the aic7xxx_seq.c file here so that the other defines have
+ * already been made, and so that it comes before the code that actually
+ * downloads the instructions (since we don't typically use function
+ * prototype, our code has to be ordered that way, it's a left-over from
+ * the original driver days.....I should fix it some time DL).
+ */
+#include "aic7xxx_seq.c"
/*+F*************************************************************************
* Function:
- * aic7xxx_next_patch
+ * aic7xxx_check_patch
*
* Description:
- * Find the next patch to download.
+ * See if the next patch to download should be downloaded.
*-F*************************************************************************/
-static struct sequencer_patch *
-aic7xxx_next_patch(struct sequencer_patch *cur_patch, int options, int instrptr)
+static int
+aic7xxx_check_patch(struct aic7xxx_host *p,
+ struct sequencer_patch **start_patch, int start_instr, int *skip_addr)
{
- while (cur_patch != NULL)
+ struct sequencer_patch *cur_patch;
+ struct sequencer_patch *last_patch;
+ int num_patches;
+
+ num_patches = sizeof(sequencer_patches)/sizeof(struct sequencer_patch);
+ last_patch = &sequencer_patches[num_patches];
+ cur_patch = *start_patch;
+
+ while ((cur_patch < last_patch) && (start_instr == cur_patch->begin))
{
- if ((((cur_patch->options & options) != 0) && (cur_patch->negative == FALSE))
- || (((cur_patch->options & options) == 0) && (cur_patch->negative == TRUE))
- || (instrptr >= cur_patch->end))
+ if (cur_patch->patch_func(p) == 0)
{
/*
- * Either we want to keep this section of code, or we have consumed
- * this patch. Skip to the next patch.
+ * Start rejecting code.
*/
- cur_patch++;
- if (cur_patch->options == 0)
- {
- /* Out of patches. */
- cur_patch = NULL;
- }
+ *skip_addr = start_instr + cur_patch->skip_instr;
+ cur_patch += cur_patch->skip_patch;
}
else
{
- /* Found an OK patch. */
- break;
+ /*
+ * Found an OK patch. Advance the patch pointer to the next patch
+ * and wait for our instruction pointer to get here.
+ */
+ cur_patch++;
}
}
- return (cur_patch);
+
+ *start_patch = cur_patch;
+ if (start_instr < *skip_addr)
+ /*
+ * Still skipping
+ */
+ return (0);
+ return(1);
}
@@ -1446,15 +1822,21 @@
* Find the next patch to download.
*-F*************************************************************************/
static void
-aic7xxx_download_instr(struct aic7xxx_host *p, int options, int instrptr)
+aic7xxx_download_instr(struct aic7xxx_host *p, int instrptr,
+ unsigned char *dconsts)
{
+ union ins_formats instr;
+ struct ins_format1 *fmt1_ins;
+ struct ins_format3 *fmt3_ins;
unsigned char opcode;
- struct ins_format3 instr;
- unsigned char dconsts[4] = { 0, 0, 0, 0 };
- instr = *(struct ins_format3 *) &seqprog[instrptr * 4];
+ instr = *(union ins_formats*) &seqprog[instrptr * 4];
+
+ fmt1_ins = &instr.format1;
+ fmt3_ins = NULL;
+
/* Pull the opcode */
- opcode = (instr.opcode_addr & ~DOWNLOAD_CONST_IMMEDIATE) >> 1;
+ opcode = instr.format1.opcode;
switch (opcode)
{
case AIC_OP_JMP:
@@ -1466,44 +1848,86 @@
case AIC_OP_JE:
case AIC_OP_JZ:
{
+ struct sequencer_patch *cur_patch;
int address_offset;
unsigned int address;
- struct sequencer_patch *patch;
+ int skip_addr;
int i;
+ fmt3_ins = &instr.format3;
address_offset = 0;
- address = instr.address;
- address |= (instr.opcode_addr & ADDR_HIGH_BIT) << 8;
- for (i = 0; i < NUMBER(sequencer_patches); i++)
+ address = fmt3_ins->address;
+ cur_patch = sequencer_patches;
+ skip_addr = 0;
+
+ for (i = 0; i < address;)
{
- patch = &sequencer_patches[i];
- if ((((patch->options & options) == 0) && (patch->negative == FALSE)) ||
- (((patch->options & options) != 0) && (patch->negative == TRUE)))
+ aic7xxx_check_patch(p, &cur_patch, i, &skip_addr);
+ if (skip_addr > i)
{
- if (address >= patch->end)
- {
- address_offset += patch->end - patch->begin;
- }
+ int end_addr;
+
+ end_addr = MIN(address, skip_addr);
+ address_offset += end_addr - i;
+ i = skip_addr;
+ }
+ else
+ {
+ i++;
}
}
address -= address_offset;
- instr.address = address & 0xFF;
- instr.opcode_addr &= ~ADDR_HIGH_BIT;
- instr.opcode_addr |= (address >> 8) & ADDR_HIGH_BIT;
+ fmt3_ins->address = address;
+ /* Fall Through to the next code section */
}
- /* Fall through */
case AIC_OP_OR:
case AIC_OP_AND:
case AIC_OP_XOR:
case AIC_OP_ADD:
case AIC_OP_ADC:
- if (instr.opcode_addr & DOWNLOAD_CONST_IMMEDIATE)
+ case AIC_OP_BMOV:
+ if (fmt1_ins->parity != 0)
{
- instr.immediate = dconsts[instr.immediate];
+ fmt1_ins->immediate = dconsts[fmt1_ins->immediate];
}
- instr.opcode_addr &= ~DOWNLOAD_CONST_IMMEDIATE;
+ fmt1_ins->parity = 0;
+ /* Fall Through to the next code section */
case AIC_OP_ROL:
- aic_outsb(p, SEQRAM, &instr.immediate, 4);
+ if ((p->features & AHC_ULTRA2) != 0)
+ {
+ int i, count;
+
+ /* Calculate odd parity for the instruction */
+ for ( i=0, count=0; i < 31; i++)
+ {
+ unsigned int mask;
+
+ mask = 0x01 << i;
+ if ((instr.integer & mask) != 0)
+ count++;
+ }
+ if (!(count & 0x01))
+ instr.format1.parity = 1;
+ }
+ else
+ {
+ if (fmt3_ins != NULL)
+ {
+ instr.integer = fmt3_ins->immediate |
+ (fmt3_ins->source << 8) |
+ (fmt3_ins->address << 16) |
+ (fmt3_ins->opcode << 25);
+ }
+ else
+ {
+ instr.integer = fmt1_ins->immediate |
+ (fmt1_ins->source << 8) |
+ (fmt1_ins->destination << 16) |
+ (fmt1_ins->ret << 24) |
+ (fmt1_ins->opcode << 25);
+ }
+ }
+ aic_outsb(p, SEQRAM, instr.bytes, 4);
break;
default:
@@ -1523,104 +1947,100 @@
static void
aic7xxx_loadseq(struct aic7xxx_host *p)
{
- int options;
struct sequencer_patch *cur_patch;
int i;
int downloaded;
+ int skip_addr;
+ unsigned char download_consts[4] = {0, 0, 0, 0};
if (aic7xxx_verbose & VERBOSE_PROBE)
{
printk(KERN_INFO "(scsi%d) Downloading sequencer code...", p->host_no);
}
- if (aic7xxx_verbose & VERBOSE_PROBE2)
- printk("\n");
- options = 1; /* Code for all options. */
+ download_consts[TMODE_NUMCMDS] = p->num_targetcmds;
+ cur_patch = &sequencer_patches[0];
downloaded = 0;
- if (p->type & AHC_ULTRA)
- {
- options |= ULTRA;
- if (aic7xxx_verbose & VERBOSE_PROBE2)
- printk(KERN_INFO "(scsi%d) Will download code for option ULTRA\n",
- p->host_no);
- }
- if (p->type & AHC_TWIN)
- {
- options |= TWIN_CHANNEL;
- if (aic7xxx_verbose & VERBOSE_PROBE2)
- printk(KERN_INFO "(scsi%d) Will download code for option "
- "TWIN_CHANNEL\n", p->host_no);
- }
- if (p->type & AHC_WIDE)
- {
- options |= WIDE;
- if (aic7xxx_verbose & VERBOSE_PROBE2)
- printk(KERN_INFO "(scsi%d) Will download code for option WIDE\n",
- p->host_no);
- }
- /* if (p->scb_data->maxscbs > p->scb_data->maxhscbs) this should always
- be true, don't test,
- just do. */
- {
- options |= SCB_PAGING;
- if (aic7xxx_verbose & VERBOSE_PROBE2)
- printk(KERN_INFO "(scsi%d) Will download code for option SCB_PAGING\n",
- p->host_no);
- }
- /* We don't actually support target mode yet, so leave this out
- if (p->flags & AHC_TARGETMODE)
- options |= TARGET_MODE; */
-
- if ( (options & ~(ULTRA|TWIN_CHANNEL|WIDE|SCB_PAGING|0x01)) )
- {
- printk(KERN_INFO "(scsi%d) Unknown bits set in the options field, "
- "correcting.\n", p->host_no);
- options &= ULTRA|TWIN_CHANNEL|WIDE|SCB_PAGING|0x01;
- }
-
+ skip_addr = 0;
- cur_patch = sequencer_patches;
- aic_outb(p, PERRORDIS | LOADRAM, SEQCTL);
+ aic_outb(p, PERRORDIS|LOADRAM|FAILDIS|FASTMODE, SEQCTL);
aic_outb(p, 0, SEQADDR0);
aic_outb(p, 0, SEQADDR1);
for (i = 0; i < sizeof(seqprog) / 4; i++)
{
- cur_patch = aic7xxx_next_patch(cur_patch, options, i);
- if (cur_patch && (cur_patch->begin <= i) && (cur_patch->end > i))
+ if (aic7xxx_check_patch(p, &cur_patch, i, &skip_addr) == 0)
{
/* Skip this instruction for this configuration. */
continue;
}
- aic7xxx_download_instr(p, options, i);
+ aic7xxx_download_instr(p, i, &download_consts[0]);
downloaded++;
}
- aic_outb(p, FASTMODE, SEQCTL);
+ aic_outb(p, FASTMODE|SEQRESET, SEQCTL);
+ if (aic7xxx_verbose & VERBOSE_PROBE)
+ {
+ printk(" %d instructions downloaded\n", downloaded);
+ }
+#ifdef AIC7XXX_VERBOSE_DEBUGGING
+ if (aic7xxx_dump_sequencer)
+ aic7xxx_print_sequencer(p, downloaded);
+#endif
+}
+
+#ifdef AIC7XXX_VERBOSE_DEBUGGING
+/*+F*************************************************************************
+ * Function:
+ * aic7xxx_print_sequencer
+ *
+ * Description:
+ * Print the contents of the sequencer memory to the screen.
+ *-F*************************************************************************/
+static void
+aic7xxx_print_sequencer(struct aic7xxx_host *p, int downloaded)
+{
+ int i, k, temp;
+
+ aic_outb(p, PERRORDIS|LOADRAM|FAILDIS|FASTMODE, SEQCTL);
aic_outb(p, 0, SEQADDR0);
aic_outb(p, 0, SEQADDR1);
- if (aic7xxx_verbose & VERBOSE_PROBE2)
- printk(KERN_INFO "(scsi%d) Download complete,", p->host_no);
-
- if (aic7xxx_verbose & VERBOSE_PROBE)
+ k = 0;
+ for (i=0; i < downloaded; i++)
{
- printk(" %d instructions downloaded\n", downloaded);
+ if ( k == 0 )
+ printk("%03x: ", i);
+ temp = aic_inb(p, SEQRAM);
+ temp |= (aic_inb(p, SEQRAM) << 8);
+ temp |= (aic_inb(p, SEQRAM) << 16);
+ temp |= (aic_inb(p, SEQRAM) << 24);
+ printk("%08x", temp);
+ if ( ++k == 8 )
+ {
+ printk("\n");
+ k = 0;
+ }
+ else
+ printk(" ");
}
+ aic_outb(p, FASTMODE|SEQRESET, SEQCTL);
+ printk("\n");
}
+#endif
/*+F*************************************************************************
* Function:
* aic7xxx_delay
*
* Description:
- * Delay for specified amount of time. We use udelay because the timer
+ * Delay for specified amount of time. We use mdelay because the timer
* interrupt is not guaranteed to be enabled. This will cause an
* infinite loop since jiffies (clock ticks) is not updated.
*-F*************************************************************************/
static void
aic7xxx_delay(int seconds)
{
- mdelay(seconds*1000);
+ mdelay(seconds * 1000);
}
/*+F*************************************************************************
@@ -1652,170 +2072,345 @@
return(bp);
}
-
/*+F*************************************************************************
* Function:
- * aic7xxx_scsirate
+ * aic7xxx_find_syncrate
*
* Description:
* Look up the valid period to SCSIRATE conversion in our table
*-F*************************************************************************/
-static unsigned char
-aic7xxx_scsirate(struct aic7xxx_host *p, unsigned char *scsirate,
- unsigned char *period, unsigned char *offset, int target, int channel,
- int set)
+static struct aic7xxx_syncrate *
+aic7xxx_find_syncrate(struct aic7xxx_host *p, unsigned int *period,
+ unsigned int maxsync)
{
- int i = num_aic7xxx_syncrates;
- unsigned char response_period;
- unsigned char tindex;
- unsigned short target_mask;
- unsigned char lun;
-
- tindex = target | (channel << 3);
- target_mask = 0x01 << tindex;
- lun = aic_inb(p, SCB_TCL) & 0x07;
-
- response_period = *period;
+ struct aic7xxx_syncrate *syncrate;
- /*
- * If the offset is 0, then the device is requesting asynchronous
- * transfers.
- */
- if ((*period != 0) && (*offset != 0))
+ syncrate = &aic7xxx_syncrates[maxsync];
+ while ( (syncrate->rate[0] != NULL) &&
+ (!(p->features & AHC_ULTRA2) || syncrate->sxfr_ultra2) )
{
- for (i = 0; i < num_aic7xxx_syncrates; i++)
+ if ( *period <= syncrate->period )
{
- if (*period <= aic7xxx_syncrates[i].period)
+ /*
+ * When responding to a target that requests sync, the requested rate
+ * may fall between two rates that we can output, but still be a rate
+ * that we can receive. Because of this, we want to respond with the
+ * same rate that it sent to us even if the persiod we use to send
+ * data to it is lower. Only lower the response period if we must.
+ */
+ if(syncrate == &aic7xxx_syncrates[maxsync])
{
- /*
- * Watch out for Ultra speeds when ultra is not enabled and
- * vice-versa.
- */
- if (!(p->type & AHC_ULTRA) &&
- (aic7xxx_syncrates[i].rate & ULTRA_SXFR))
- {
- /*
- * This should only happen if the drive is the first to negotiate
- * and chooses a high rate. We'll just move down the table until
- * we hit a non ultra speed.
- */
- continue;
- }
- *scsirate = (aic7xxx_syncrates[i].rate & 0xF0) | (*offset & 0x0F);
- *period = aic7xxx_syncrates[i].period;
-
- /*
- * When responding to a target that requests
- * sync, that rate may fall between two rates
- * that we can output, but still be a rate
- * that we can receive. Because of this,
- * we may want to respond to the target with
- * the same rate that it sent to us even
- * if the period we use to send data to it
- * is lower. Only lower the response period
- * if we must.
- */
- if ((i == 0) ||
- ((aic7xxx_syncrates[i-1].rate & ULTRA_SXFR) != 0
- && (p->type & AHC_ULTRA) == 0))
- {
- response_period = *period;
- }
-
- if ( (aic7xxx_verbose & VERBOSE_NEGOTIATION) &&
- (p->dev_flags[tindex] & DEVICE_PRINT_SDTR) )
- {
- printk(INFO_LEAD "Synchronous at %sMHz, "
- "offset %d.\n", p->host_no, channel, target, lun,
- aic7xxx_syncrates[i].english, *offset);
- p->dev_flags[tindex] &= ~ DEVICE_PRINT_SDTR;
- }
- break;
+ *period = syncrate->period;
}
+ break;
}
+ syncrate++;
}
-
- if (i >= num_aic7xxx_syncrates)
+ if ( (*period == 0) || (syncrate->rate[0] == NULL) ||
+ ((p->features & AHC_ULTRA2) && (syncrate->sxfr_ultra2 == 0)) )
{
/*
- * Use asynchronous transfers.
+ * Use async transfers for this target
*/
- *scsirate = 0;
*period = 0;
- *offset = 0;
- response_period = 0;
- if ( (aic7xxx_verbose & VERBOSE_NEGOTIATION) &&
- (p->dev_flags[tindex] & DEVICE_PRINT_SDTR) )
- {
- printk(INFO_LEAD "Using asynchronous transfers.\n",
- p->host_no, channel, target, lun);
- p->dev_flags[tindex] &= ~DEVICE_PRINT_SDTR;
- }
+ syncrate = NULL;
}
+ return (syncrate);
+}
- /*
- * Ensure Ultra mode is set properly for this target.
- */
- if ( (*scsirate != 0) &&
- (aic7xxx_syncrates[i].rate & ULTRA_SXFR) )
+
+/*+F*************************************************************************
+ * Function:
+ * aic7xxx_find_period
+ *
+ * Description:
+ * Look up the valid SCSIRATE to period conversion in our table
+ *-F*************************************************************************/
+static unsigned int
+aic7xxx_find_period(struct aic7xxx_host *p, unsigned int scsirate,
+ unsigned int maxsync)
+{
+ struct aic7xxx_syncrate *syncrate;
+
+ if ((p->features & AHC_ULTRA2) != 0)
{
- p->ultraenb |= target_mask;
+ scsirate &= SXFR_ULTRA2;
}
else
{
- p->ultraenb &= ~target_mask;
+ scsirate &= SXFR;
}
- if (set)
- {
- unsigned char sxfrctl0;
- sxfrctl0 = aic_inb(p, SXFRCTL0);
- sxfrctl0 &= ~FAST20;
- if (p->ultraenb & target_mask)
+ syncrate = &aic7xxx_syncrates[maxsync];
+ while (syncrate->rate[0] != NULL)
+ {
+ if ((p->features & AHC_ULTRA2) != 0)
{
- sxfrctl0 |= FAST20;
+ if (syncrate->sxfr_ultra2 == 0)
+ break;
+ else if (scsirate == syncrate->sxfr_ultra2)
+ return (syncrate->period);
+ }
+ else if (scsirate == (syncrate->sxfr & ~ULTRA_SXFR))
+ {
+ return (syncrate->period);
}
- aic_outb(p, p->ultraenb & 0xff, ULTRA_ENB);
- aic_outb(p, (p->ultraenb >> 8) & 0xff, ULTRA_ENB + 1);
- aic_outb(p, sxfrctl0, SXFRCTL0);
+ syncrate++;
}
- return(response_period);
+ return (0); /* async */
}
/*+F*************************************************************************
* Function:
- * scbq_init
+ * aic7xxx_validate_offset
*
* Description:
- * SCB queue initialization.
- *
+ * Set a valid offset value for a particular card in use and transfer
+ * settings in use.
*-F*************************************************************************/
-static inline void
-scbq_init(volatile scb_queue_type *queue)
+static void
+aic7xxx_validate_offset(struct aic7xxx_host *p,
+ struct aic7xxx_syncrate *syncrate, unsigned int *offset, int wide)
{
- queue->head = NULL;
- queue->tail = NULL;
+ unsigned int maxoffset;
+
+ /* Limit offset to what the card (and device) can do */
+ if (syncrate == NULL)
+ {
+ maxoffset = 0;
+ }
+ else if (p->features & AHC_ULTRA2)
+ {
+ maxoffset = MAX_OFFSET_ULTRA2;
+ }
+ else
+ {
+ if (wide)
+ maxoffset = MAX_OFFSET_16BIT;
+ else
+ maxoffset = MAX_OFFSET_8BIT;
+ }
+ *offset = MIN(*offset, maxoffset);
}
/*+F*************************************************************************
* Function:
- * scbq_insert_head
+ * aic7xxx_set_syncrate
*
* Description:
- * Add an SCB to the head of the list.
- *
+ * Set the actual syncrate down in the card and in our host structs
*-F*************************************************************************/
-static inline void
-scbq_insert_head(volatile scb_queue_type *queue, struct aic7xxx_scb *scb)
+static void
+aic7xxx_set_syncrate(struct aic7xxx_host *p, struct aic7xxx_syncrate *syncrate,
+ int target, int channel, unsigned int period, unsigned int offset,
+ unsigned int type)
{
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,1,95)
- unsigned long cpu_flags;
-#endif
+ unsigned char tindex;
+ unsigned short target_mask;
+ unsigned char lun;
+ unsigned int old_period, old_offset;
- DRIVER_LOCK
- scb->q_next = queue->head;
- queue->head = scb;
- if (queue->tail == NULL) /* If list was empty, update tail. */
+ tindex = target | (channel << 3);
+ target_mask = 0x01 << tindex;
+ lun = aic_inb(p, SCB_TCL) & 0x07;
+
+ if (syncrate == NULL)
+ {
+ period = 0;
+ offset = 0;
+ }
+
+ old_period = p->transinfo[tindex].cur_period;
+ old_offset = p->transinfo[tindex].cur_offset;
+
+
+ if (type & AHC_TRANS_CUR)
+ {
+ unsigned int scsirate;
+
+ scsirate = aic_inb(p, TARG_SCSIRATE + tindex);
+ if (p->features & AHC_ULTRA2)
+ {
+ scsirate &= ~SXFR_ULTRA2;
+ if (syncrate != NULL)
+ {
+ scsirate |= syncrate->sxfr_ultra2;
+ }
+ if (type & AHC_TRANS_ACTIVE)
+ {
+ aic_outb(p, offset, SCSIOFFSET);
+ }
+ aic_outb(p, offset, TARG_OFFSET + tindex);
+ }
+ else /* Not an Ultra2 controller */
+ {
+ scsirate &= ~(SXFR|SOFS);
+ p->ultraenb &= ~target_mask;
+ if (syncrate != NULL)
+ {
+ if (syncrate->sxfr & ULTRA_SXFR)
+ {
+ p->ultraenb |= target_mask;
+ }
+ scsirate |= (syncrate->sxfr & SXFR);
+ scsirate |= (offset & SOFS);
+ }
+ if (type & AHC_TRANS_ACTIVE)
+ {
+ unsigned char sxfrctl0;
+
+ sxfrctl0 = aic_inb(p, SXFRCTL0);
+ sxfrctl0 &= ~FAST20;
+ if (p->ultraenb & target_mask)
+ sxfrctl0 |= FAST20;
+ aic_outb(p, sxfrctl0, SXFRCTL0);
+ }
+ aic_outb(p, p->ultraenb & 0xff, ULTRA_ENB);
+ aic_outb(p, (p->ultraenb >> 8) & 0xff, ULTRA_ENB + 1 );
+ }
+ if (type & AHC_TRANS_ACTIVE)
+ {
+ aic_outb(p, scsirate, SCSIRATE);
+ }
+ aic_outb(p, scsirate, TARG_SCSIRATE + tindex);
+ p->transinfo[tindex].cur_period = period;
+ p->transinfo[tindex].cur_offset = offset;
+ if ( !(type & AHC_TRANS_QUITE) &&
+ (aic7xxx_verbose & VERBOSE_NEGOTIATION) &&
+ (p->dev_flags[tindex] & DEVICE_PRINT_SDTR) )
+ {
+ if (offset)
+ {
+ int rate_mod = (scsirate & WIDEXFER) ? 1 : 0;
+
+ printk(INFO_LEAD "Synchronous at %s Mbyte/sec, "
+ "offset %d.\n", p->host_no, channel, target, lun,
+ syncrate->rate[rate_mod], offset);
+ }
+ else
+ {
+ printk(INFO_LEAD "Using asynchronous transfers.\n",
+ p->host_no, channel, target, lun);
+ }
+ p->dev_flags[tindex] &= ~DEVICE_PRINT_SDTR;
+ }
+ }
+
+ if (type & AHC_TRANS_GOAL)
+ {
+ p->transinfo[tindex].goal_period = period;
+ p->transinfo[tindex].goal_offset = offset;
+ }
+
+ if (type & AHC_TRANS_USER)
+ {
+ p->transinfo[tindex].user_period = period;
+ p->transinfo[tindex].user_offset = offset;
+ }
+}
+
+/*+F*************************************************************************
+ * Function:
+ * aic7xxx_set_width
+ *
+ * Description:
+ * Set the actual width down in the card and in our host structs
+ *-F*************************************************************************/
+static void
+aic7xxx_set_width(struct aic7xxx_host *p, int target, int channel, int lun,
+ unsigned int width, unsigned int type)
+{
+ unsigned char tindex;
+ unsigned short target_mask;
+ unsigned int old_width, new_offset;
+
+ tindex = target | (channel << 3);
+ target_mask = 1 << tindex;
+
+ old_width = p->transinfo[tindex].cur_width;
+
+ if (p->features & AHC_ULTRA2)
+ new_offset = MAX_OFFSET_ULTRA2;
+ else if (width == MSG_EXT_WDTR_BUS_16_BIT)
+ new_offset = MAX_OFFSET_16BIT;
+ else
+ new_offset = MAX_OFFSET_8BIT;
+
+ if (type & AHC_TRANS_CUR)
+ {
+ unsigned char scsirate;
+
+ scsirate = aic_inb(p, TARG_SCSIRATE + tindex);
+
+ scsirate &= ~WIDEXFER;
+ if (width == MSG_EXT_WDTR_BUS_16_BIT)
+ scsirate |= WIDEXFER;
+
+ aic_outb(p, scsirate, TARG_SCSIRATE + tindex);
+
+ if (type & AHC_TRANS_ACTIVE)
+ aic_outb(p, scsirate, SCSIRATE);
+
+ p->transinfo[tindex].cur_width = width;
+
+ if ((aic7xxx_verbose & VERBOSE_NEGOTIATION2) &&
+ (p->dev_flags[tindex] & DEVICE_PRINT_WDTR))
+ {
+ printk(INFO_LEAD "Using %s transfers\n", p->host_no, channel, target,
+ lun, (scsirate & WIDEXFER) ? "Wide(16bit)" : "Narrow(8bit)" );
+ p->dev_flags[tindex] &= ~DEVICE_PRINT_WDTR;
+ }
+ }
+
+ if (type & AHC_TRANS_GOAL)
+ p->transinfo[tindex].goal_width = width;
+ if (type & AHC_TRANS_USER)
+ p->transinfo[tindex].user_width = width;
+
+ /*
+ * Having just set the width, the SDTR should come next, and we need a valid
+ * offset for the SDTR. So, we make sure we put a valid one in here now as
+ * the goal_offset.
+ */
+ if (p->transinfo[tindex].goal_offset)
+ p->transinfo[tindex].goal_offset = new_offset;
+
+}
+
+/*+F*************************************************************************
+ * Function:
+ * scbq_init
+ *
+ * Description:
+ * SCB queue initialization.
+ *
+ *-F*************************************************************************/
+static void
+scbq_init(volatile scb_queue_type *queue)
+{
+ queue->head = NULL;
+ queue->tail = NULL;
+}
+
+/*+F*************************************************************************
+ * Function:
+ * scbq_insert_head
+ *
+ * Description:
+ * Add an SCB to the head of the list.
+ *
+ *-F*************************************************************************/
+static inline void
+scbq_insert_head(volatile scb_queue_type *queue, struct aic7xxx_scb *scb)
+{
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,1,95)
+ unsigned long cpu_flags;
+#endif
+
+ DRIVER_LOCK
+ scb->q_next = queue->head;
+ queue->head = scb;
+ if (queue->tail == NULL) /* If list was empty, update tail. */
queue->tail = queue->head;
DRIVER_UNLOCK
}
@@ -1828,7 +2423,7 @@
* Remove an SCB from the head of the list.
*
*-F*************************************************************************/
-static __inline struct aic7xxx_scb *
+static inline struct aic7xxx_scb *
scbq_remove_head(volatile scb_queue_type *queue)
{
struct aic7xxx_scb * scbp;
@@ -2021,7 +2616,7 @@
* Description:
* Set the specified target busy.
*-F*************************************************************************/
-static __inline void
+static inline void
aic7xxx_busy_target(struct aic7xxx_host *p, struct aic7xxx_scb *scb)
{
p->untagged_scbs[scb->hscb->target_channel_lun] = scb->hscb->tag;
@@ -2035,7 +2630,7 @@
* Returns the index of the busy target, and optionally sets the
* target inactive.
*-F*************************************************************************/
-static __inline unsigned char
+static inline unsigned char
aic7xxx_index_busy_target(struct aic7xxx_host *p, unsigned char tcl,
int unbusy)
{
@@ -2091,47 +2686,47 @@
* Description:
* Get an SCB from the free list or by allocating a new one.
*-F*************************************************************************/
-static struct aic7xxx_scb *
-aic7xxx_allocate_scb(struct aic7xxx_host *p, int force_alloc)
+static int
+aic7xxx_allocate_scb(struct aic7xxx_host *p)
{
struct aic7xxx_scb *scbp = NULL;
int scb_size = sizeof(struct aic7xxx_scb) +
sizeof (struct hw_scatterlist) * AIC7XXX_MAX_SG;
int i;
+ int step = PAGE_SIZE / 1024;
unsigned long scb_count = 0;
struct hw_scatterlist *hsgp;
struct aic7xxx_scb *scb_ap;
+ unsigned long temp;
- if (force_alloc == FALSE)
- {
- scbp = scbq_remove_head(&p->scb_data->free_scbs);
- if (scbp != NULL)
- return(scbp);
- }
- /*
- * Either there wasn't an SCB or this is a strictly allocation call
- */
-
if (p->scb_data->numscbs < p->scb_data->maxscbs)
{
-
/*
- * Optimize for 30 scbs at a time, but allow a final allocation of
- * fewer than 30 scbs. Except on 64 bit platforms, we optimize for
- * 29 SCBs at a time because a pointer is 4 bytes larger and we don't
- * want to overrun this suppossedly 32K allocation to 64K and waste
- * tons of space.
+ * Calculate the optimal number of SCBs to allocate.
+ *
+ * NOTE: This formula works because the sizeof(sg_array) is always
+ * 1024. Therefore, scb_size * i would always be > PAGE_SIZE *
+ * (i/step). The (i-1) allows the left hand side of the equation
+ * to grow into the right hand side to a point of near perfect
+ * efficiency since scb_size * (i -1) is growing slightly faster
+ * than the right hand side. If the number of SG array elements
+ * is changed, this function may not be near so efficient any more.
*/
- if( sizeof(void *) == sizeof(int) )
- scb_count = MIN(30, p->scb_data->maxscbs - p->scb_data->numscbs);
- else
- scb_count = MIN(29, p->scb_data->maxscbs - p->scb_data->numscbs);
-
+ for ( i=step;; i *= 2 )
+ {
+ if ( (scb_size * (i-1)) >= ( (PAGE_SIZE * (i/step)) - 64 ) )
+ {
+ i /= 2;
+ break;
+ }
+ }
+ scb_count = MIN( (i-1), p->scb_data->maxscbs - p->scb_data->numscbs);
scb_ap = (struct aic7xxx_scb *)kmalloc(scb_size * scb_count, GFP_ATOMIC);
if (scb_ap != NULL)
{
- if (aic7xxx_verbose & VERBOSE_QUEUE)
+#ifdef AIC7XXX_VERBOSE_DEBUGGING
+ if (aic7xxx_verbose > 0xffff)
{
if (p->scb_data->numscbs == 0)
printk(INFO_LEAD "Allocating initial %ld SCB structures.\n",
@@ -2140,8 +2735,12 @@
printk(INFO_LEAD "Allocating %ld additional SCB structures.\n",
p->host_no, -1, -1, -1, scb_count);
}
+#endif
memset(scb_ap, 0, scb_count * scb_size);
- hsgp = (struct hw_scatterlist *) &scb_ap[scb_count];
+ temp = (unsigned long) &scb_ap[scb_count];
+ temp += 1023;
+ temp &= ~1023;
+ hsgp = (struct hw_scatterlist *)temp;
for (i=0; i < scb_count; i++)
{
scbp = &scb_ap[i];
@@ -2155,20 +2754,14 @@
p->scb_data->scb_array[p->scb_data->numscbs++] = scbp;
scbq_insert_head(&p->scb_data->free_scbs, scbp);
}
+ scbp->kmalloc_ptr = scb_ap;
}
else
{
- return(NULL);
+ return(0);
}
}
- if (force_alloc == TRUE)
- {
- return((struct aic7xxx_scb *)scb_count);
- }
- else
- {
- return(scbq_remove_head(&p->scb_data->free_scbs));
- }
+ return(scb_count);
}
/*+F*************************************************************************
@@ -2180,7 +2773,7 @@
* to queue completed commands, then call scsi_done() on them when
* we're finished. This function queues the completed commands.
*-F*************************************************************************/
-static inline void
+static void
aic7xxx_queue_cmd_complete(struct aic7xxx_host *p, Scsi_Cmnd *cmd)
{
cmd->host_scribble = (char *)p->completeq.head;
@@ -2194,7 +2787,7 @@
* Description:
* Process the completed command queue.
*-F*************************************************************************/
-static inline void
+static void
aic7xxx_done_cmds_complete(struct aic7xxx_host *p)
{
Scsi_Cmnd *cmd;
@@ -2267,17 +2860,15 @@
}
if (scb->flags & SCB_RESET)
{
- cmd->result = (DID_RESET << 16) | (SUGGEST_RETRY << 24) |
- (cmd->result & 0xffff);
+ cmd->result = (DID_RESET << 16) | (cmd->result & 0xffff);
}
else if (scb->flags & SCB_ABORT)
{
- cmd->result = (DID_RESET << 16) | (SUGGEST_RETRY << 24) |
- (cmd->result & 0xffff);
+ cmd->result = (DID_RESET << 16) | (cmd->result & 0xffff);
}
- if (!(p->dev_flags[tindex] & DEVICE_SCANNED))
+ else if (!(p->dev_flags[tindex] & DEVICE_SCANNED))
{
- if(cmd->cmnd[0] == INQUIRY)
+ if ( (cmd->cmnd[0] == INQUIRY) && (cmd->result == DID_OK) )
{
char *buffer;
@@ -2295,35 +2886,65 @@
#define WIDE_INQUIRY_BITS 0x60
#define SYNC_INQUIRY_BITS 0x10
if ( (buffer[7] & WIDE_INQUIRY_BITS) &&
- (p->needwdtr_copy & (1<<tindex)) &&
- (p->type & AHC_WIDE) )
+ (p->features & AHC_WIDE) )
{
p->needwdtr |= (1<<tindex);
p->needwdtr_copy |= (1<<tindex);
- p->syncinfo[tindex].offset = MAX_OFFSET_16BIT;
+ if ( (p->flags & AHC_SEEPROM_FOUND) &&
+ (p->transinfo[tindex].user_width != MSG_EXT_WDTR_BUS_16_BIT) )
+ p->transinfo[tindex].goal_width = MSG_EXT_WDTR_BUS_8_BIT;
+ else
+ p->transinfo[tindex].goal_width = MSG_EXT_WDTR_BUS_16_BIT;
}
else
{
p->needwdtr &= ~(1<<tindex);
p->needwdtr_copy &= ~(1<<tindex);
- p->syncinfo[tindex].offset = MAX_OFFSET_8BIT;
+ pause_sequencer(p);
+ aic7xxx_set_width(p, cmd->target, cmd->channel, cmd->lun,
+ MSG_EXT_WDTR_BUS_8_BIT, (AHC_TRANS_ACTIVE |
+ AHC_TRANS_GOAL |
+ AHC_TRANS_CUR) );
+ unpause_sequencer(p, FALSE);
}
if (buffer[7] & SYNC_INQUIRY_BITS)
{
p->needsdtr |= (1<<tindex);
p->needsdtr_copy |= (1<<tindex);
+
+ if (p->flags & AHC_SEEPROM_FOUND)
+ p->transinfo[tindex].goal_period = p->transinfo[tindex].user_period;
+ else if (p->features & AHC_ULTRA2)
+ p->transinfo[tindex].goal_period =
+ aic7xxx_syncrates[AHC_SYNCRATE_ULTRA2].period;
+ else if (p->features & AHC_ULTRA)
+ p->transinfo[tindex].goal_period =
+ aic7xxx_syncrates[AHC_SYNCRATE_ULTRA].period;
+ else
+ p->transinfo[tindex].goal_period =
+ aic7xxx_syncrates[AHC_SYNCRATE_FAST].period;
+
+ if (p->features & AHC_ULTRA2)
+ p->transinfo[tindex].goal_offset = MAX_OFFSET_ULTRA2;
+ else if (p->transinfo[tindex].goal_width == MSG_EXT_WDTR_BUS_16_BIT)
+ p->transinfo[tindex].goal_offset = MAX_OFFSET_16BIT;
+ else
+ p->transinfo[tindex].goal_offset = MAX_OFFSET_8BIT;
}
else
{
p->needsdtr &= ~(1<<tindex);
p->needsdtr_copy &= ~(1<<tindex);
+ p->transinfo[tindex].goal_period = 0;
+ p->transinfo[tindex].goal_offset = 0;
}
p->dev_flags[tindex] |= DEVICE_SCANNED;
+ p->dev_flags[tindex] |= DEVICE_PRINT_WDTR | DEVICE_PRINT_SDTR;
#undef WIDE_INQUIRY_BITS
#undef SYNC_INQUIRY_BITS
}
}
- if ((scb->flags & (SCB_MSGOUT_WDTR | SCB_MSGOUT_SDTR)) != 0)
+ else if ((scb->flags & (SCB_MSGOUT_WDTR | SCB_MSGOUT_SDTR)) != 0)
{
unsigned short mask;
int message_error = FALSE;
@@ -2346,7 +2967,7 @@
p->wdtr_pending &= ~mask;
if (message_error)
{
- if ( (aic7xxx_verbose & VERBOSE_NEGOTIATION) &&
+ if ( (aic7xxx_verbose & VERBOSE_NEGOTIATION2) &&
(p->dev_flags[tindex] & DEVICE_PRINT_WDTR) )
{
printk(INFO_LEAD "Device failed to complete Wide Negotiation "
@@ -2366,7 +2987,7 @@
p->sdtr_pending &= ~mask;
if (message_error)
{
- if ( (aic7xxx_verbose & VERBOSE_NEGOTIATION) &&
+ if ( (aic7xxx_verbose & VERBOSE_NEGOTIATION2) &&
(p->dev_flags[tindex] & DEVICE_PRINT_SDTR) )
{
printk(INFO_LEAD "Device failed to complete Sync Negotiation "
@@ -2402,12 +3023,17 @@
{
scbq_insert_tail(&p->waiting_scbs, scbp);
}
- }
- if ( (queue_depth > p->dev_active_cmds[tindex]) && scbp )
- {
- scbp = scbq_remove_head(&p->delayed_scbs[tindex]);
- if (scbp)
- scbq_insert_tail(&p->waiting_scbs, scbp);
+#ifdef AIC7XXX_VERBOSE_DEBUGGING
+ if (aic7xxx_verbose > 0xffff)
+ printk(INFO_LEAD "Moving SCB from delayed to waiting queue.\n",
+ p->host_no, CTL_OF_SCB(scbp));
+#endif
+ if (queue_depth > p->dev_active_cmds[tindex])
+ {
+ scbp = scbq_remove_head(&p->delayed_scbs[tindex]);
+ if (scbp)
+ scbq_insert_tail(&p->waiting_scbs, scbp);
+ }
}
}
if ( !(scb->tag_action) && (p->tagenable & (1<<tindex)) )
@@ -2427,7 +3053,6 @@
aic7xxx_index_busy_target(p, scb->hscb->target_channel_lun, TRUE);
}
-#ifdef AIC7XXX_PROC_STATS
{
int actual;
@@ -2445,11 +3070,17 @@
if ((actual >= 512) && (((cmd->result >> 16) & 0xf) == DID_OK))
{
struct aic7xxx_xferstats *sp;
+#ifdef AIC7XXX_PROC_STATS
long *ptr;
int x;
+#endif /* AIC7XXX_PROC_STATS */
sp = &p->stats[TARGET_INDEX(cmd)][cmd->lun & 0x7];
sp->xfers++;
+#ifdef AIC7XXX_VERBOSE_DEBUGGING
+ if ( (sp->xfers > 16) && (aic7xxx_verbose > 0xffff) )
+ aic7xxx_verbose &= 0xffff;
+#endif
/*
* For block devices, cmd->request.cmd is always == either READ or
@@ -2462,14 +3093,19 @@
{
sp->w_total++;
sp->w_total512 += (actual >> 9);
+#ifdef AIC7XXX_PROC_STATS
ptr = sp->w_bins;
+#endif /* AIC7XXX_PROC_STATS */
}
else
{
sp->r_total++;
sp->r_total512 += (actual >> 9);
+#ifdef AIC7XXX_PROC_STATS
ptr = sp->r_bins;
+#endif /* AIC7XXX_PROC_STATS */
}
+#ifdef AIC7XXX_PROC_STATS
for (x = 9; x <= 17; x++)
{
if (actual < (1 << x))
@@ -2482,10 +3118,9 @@
{
ptr[x - 9]++;
}
+#endif /* AIC7XXX_PROC_STATS */
}
}
-#endif /* AIC7XXX_PROC_STATS */
-
aic7xxx_free_scb(p, scb);
aic7xxx_queue_cmd_complete(p, cmd);
@@ -2667,7 +3302,10 @@
{
p->qinfifo[qinpos++] = SCB_LIST_NULL;
}
- aic_outb(p, p->qinfifonext, KERNEL_QINPOS);
+ if (p->features & AHC_QUEUE_REGS)
+ aic_outb(p, p->qinfifonext, HNSCB_QOFF);
+ else
+ aic_outb(p, p->qinfifonext, KERNEL_QINPOS);
return (found);
}
@@ -2740,7 +3378,7 @@
{
case 0:
min_target = 0;
- max_target = (p->type & AHC_WIDE) ? 15 : 7;
+ max_target = (p->features & AHC_WIDE) ? 15 : 7;
break;
case 1:
min_target = 8;
@@ -2749,7 +3387,7 @@
case ALL_CHANNELS:
default:
min_target = 0;
- max_target = (p->type & (AHC_TWIN|AHC_WIDE)) ? 15 : 7;
+ max_target = (p->features & (AHC_TWIN|AHC_WIDE)) ? 15 : 7;
break;
}
}
@@ -2812,7 +3450,7 @@
j = 0;
prev_scbp = NULL;
scbp = p->delayed_scbs[i].head;
- while ( (scbp != NULL) && (j++ <= p->scb_data->numscbs) )
+ while ( (scbp != NULL) && (j++ <= (p->scb_data->numscbs + 1)) )
{
prev_scbp = scbp;
scbp = scbp->q_next;
@@ -2837,7 +3475,7 @@
prev_scbp->flags |= SCB_RESET | SCB_QUEUED_FOR_DONE;
}
}
- if ( j > p->scb_data->numscbs )
+ if ( j > (p->scb_data->maxscbs + 1) )
{
if (aic7xxx_verbose & (VERBOSE_ABORT | VERBOSE_RESET))
printk(WARN_LEAD "Yikes!! There's a loop in the "
@@ -2871,7 +3509,7 @@
j = 0;
prev_scbp = NULL;
scbp = p->waiting_scbs.head;
- while ( (scbp != NULL) && (j++ <= p->scb_data->numscbs) )
+ while ( (scbp != NULL) && (j++ <= (p->scb_data->numscbs + 1)) )
{
prev_scbp = scbp;
scbp = scbp->q_next;
@@ -2896,7 +3534,7 @@
prev_scbp->flags |= SCB_RESET | SCB_QUEUED_FOR_DONE;
}
}
- if ( j > p->scb_data->numscbs )
+ if ( j > (p->scb_data->maxscbs + 1) )
{
if (aic7xxx_verbose & (VERBOSE_ABORT | VERBOSE_RESET))
printk(WARN_LEAD "Yikes!! There's a loop in the "
@@ -2918,7 +3556,7 @@
next = aic_inb(p, WAITING_SCBH); /* Start at head of list. */
prev = SCB_LIST_NULL;
j = 0;
- while ( (next != SCB_LIST_NULL) && (j++ <= p->scb_data->maxhscbs) )
+ while ( (next != SCB_LIST_NULL) && (j++ <= (p->scb_data->maxscbs + 1)) )
{
aic_outb(p, next, SCBPTR);
scb_index = aic_inb(p, SCB_TAG);
@@ -2966,7 +3604,7 @@
}
}
}
- if ( j > p->scb_data->maxhscbs )
+ if ( j > (p->scb_data->maxscbs + 1) )
{
printk(WARN_LEAD "Yikes!! There is a loop in the waiting for "
"selection list!\n", p->host_no, channel, target, lun);
@@ -2981,13 +3619,14 @@
if (aic7xxx_verbose & (VERBOSE_ABORT_PROCESS | VERBOSE_RESET_PROCESS))
printk(INFO_LEAD "Cleaning disconnected scbs "
"list.\n", p->host_no, channel, target, lun);
+ if (p->features & AHC_PAGESCBS)
{
unsigned char next, prev, scb_index;
next = aic_inb(p, DISCONNECTED_SCBH);
prev = SCB_LIST_NULL;
j = 0;
- while ( (next != SCB_LIST_NULL) && (j++ <= p->scb_data->maxhscbs) )
+ while ( (next != SCB_LIST_NULL) && (j++ <= (p->scb_data->maxscbs + 1)) )
{
aic_outb(p, next, SCBPTR);
scb_index = aic_inb(p, SCB_TAG);
@@ -3020,7 +3659,7 @@
}
}
}
- if ( j > p->scb_data->maxhscbs )
+ if ( j > (p->scb_data->maxscbs + 1) )
{
printk(WARN_LEAD "Yikes!! There is a loop in the disconnected list!\n",
p->host_no, channel, target, lun);
@@ -3032,15 +3671,23 @@
* Walk the free list making sure no entries on the free list have
* a valid SCB_TAG value or SCB_CONTROL byte.
*/
+ if (p->features & AHC_PAGESCBS)
{
unsigned char next;
j = 0;
next = aic_inb(p, FREE_SCBH);
- while ( (next != SCB_LIST_NULL) && (j++ < p->scb_data->maxhscbs) )
+ if ( (next >= p->scb_data->maxhscbs) && (next != SCB_LIST_NULL) )
+ {
+ printk(WARN_LEAD "Bogus FREE_SCBH!.\n", p->host_no, channel,
+ target, lun);
+ init_lists = TRUE;
+ next = SCB_LIST_NULL;
+ }
+ while ( (next != SCB_LIST_NULL) && (j++ <= (p->scb_data->maxscbs + 1)) )
{
aic_outb(p, next, SCBPTR);
- if ( aic_inb(p, SCB_TAG) < p->scb_data->numscbs )
+ if (aic_inb(p, SCB_TAG) < p->scb_data->numscbs)
{
printk(WARN_LEAD "Free list inconsistency!.\n", p->host_no, channel,
target, lun);
@@ -3054,7 +3701,7 @@
next = aic_inb(p, SCB_NEXT);
}
}
- if ( j > p->scb_data->maxhscbs )
+ if ( j > (p->scb_data->maxscbs + 1) )
{
printk(WARN_LEAD "Yikes!! There is a loop in the free list!\n",
p->host_no, channel, target, lun);
@@ -3072,7 +3719,7 @@
aic_outb(p, SCB_LIST_NULL, WAITING_SCBH);
aic_outb(p, SCB_LIST_NULL, DISCONNECTED_SCBH);
}
- for (i = p->scb_data->maxhscbs; i >= 0; --i)
+ for (i = p->scb_data->maxhscbs - 1; i >= 0; i--)
{
unsigned char scbid;
@@ -3148,7 +3795,7 @@
aic_outb(p, CLRSELDO | CLRSELDI | CLRSELINGO, CLRSINT0);
aic_outb(p, CLRSELTIMEO | CLRATNO | CLRSCSIRSTI | CLRBUSFREE | CLRSCSIPERR |
CLRPHASECHG | CLRREQINIT, CLRSINT1);
- aic_outb(p, CLRSCSIINT | CLRSEQINT | CLRBRKADRINT, CLRINT);
+ aic_outb(p, CLRSCSIINT | CLRSEQINT | CLRBRKADRINT | CLRPARERR, CLRINT);
}
/*+F*************************************************************************
@@ -3161,21 +3808,26 @@
static void
aic7xxx_reset_current_bus(struct aic7xxx_host *p)
{
- unsigned char scsiseq;
/* Disable reset interrupts. */
aic_outb(p, aic_inb(p, SIMODE1) & ~ENSCSIRST, SIMODE1);
+ /* Turn off the bus' current operations, after all, we shouldn't have any
+ * valid commands left to cause a RSELI and SELO once we've tossed the
+ * bus away with this reset, so we might as well shut down the sequencer
+ * until the bus is restarted as oppossed to saving the current settings
+ * and restoring them (which makes no sense to me). */
+
/* Turn on the bus reset. */
- scsiseq = aic_inb(p, SCSISEQ);
- aic_outb(p, scsiseq | SCSIRSTO, SCSISEQ);
+ aic_outb(p, aic_inb(p, SCSISEQ) | SCSIRSTO, SCSISEQ);
+ while ( (aic_inb(p, SCSISEQ) & SCSIRSTO) == 0)
+ mdelay(5);
- mdelay(5);
+ mdelay(10);
/* Turn off the bus reset. */
- aic_outb(p, scsiseq & ~SCSIRSTO, SCSISEQ);
-
- mdelay(2);
+ aic_outb(p, 0, SCSISEQ);
+ mdelay(5);
aic7xxx_clear_intstat(p);
/* Re-enable reset interrupts. */
@@ -3193,7 +3845,7 @@
static void
aic7xxx_reset_channel(struct aic7xxx_host *p, int channel, int initiate_reset)
{
- unsigned long offset, offset_max;
+ unsigned long offset_min, offset_max;
unsigned char sblkctl;
int cur_channel;
@@ -3206,48 +3858,52 @@
{
p->needsdtr |= (p->needsdtr_copy & 0xFF00);
p->sdtr_pending &= 0x00FF;
- offset = TARG_SCRATCH + 8;
- offset_max = TARG_SCRATCH + 16;
+ offset_min = 8;
+ offset_max = 16;
}
else
{
- if (p->type & AHC_WIDE)
+ if (p->features & AHC_WIDE)
{
p->needsdtr = p->needsdtr_copy;
p->needwdtr = p->needwdtr_copy;
p->sdtr_pending = 0x0;
p->wdtr_pending = 0x0;
- offset = TARG_SCRATCH;
- offset_max = TARG_SCRATCH + 16;
+ offset_min = 0;
+ offset_max = 16;
}
else
{
/* Channel A */
p->needsdtr |= (p->needsdtr_copy & 0x00FF);
p->sdtr_pending &= 0xFF00;
- offset = TARG_SCRATCH;
- offset_max = TARG_SCRATCH + 8;
+ offset_min = 0;
+ offset_max = 8;
}
}
- while (offset < offset_max)
+ while (offset_min < offset_max)
{
/*
* Revert to async/narrow transfers until we renegotiate.
*/
- u_char targ_scratch;
-
- targ_scratch = aic_inb(p, offset);
- targ_scratch &= SXFR;
- aic_outb(p, targ_scratch, offset++);
+ aic_outb(p, 0, TARG_SCSIRATE + offset_min);
+ if (p->features & AHC_ULTRA2)
+ {
+ aic_outb(p, 0, TARG_OFFSET + offset_min);
+ }
+ offset_min++;
}
/*
* Reset the bus and unpause/restart the controller
*/
sblkctl = aic_inb(p, SBLKCTL);
- cur_channel = (sblkctl & SELBUSB) >> 3;
- if (cur_channel != channel)
+ if ( (p->chip & AHC_CHIPID_MASK) == AHC_AIC7770 )
+ cur_channel = (sblkctl & SELBUSB) >> 3;
+ else
+ cur_channel = 0;
+ if ( (cur_channel != channel) && (p->features & AHC_TWIN) )
{
/*
* Case 1: Command for another bus is active
@@ -3264,7 +3920,7 @@
{
aic7xxx_reset_current_bus(p);
}
- aic_outb(p, 0, SCSISEQ);
+ aic_outb(p, aic_inb(p, SCSISEQ) & (ENSELI|ENRSELI|ENAUTOATNP), SCSISEQ);
aic7xxx_clear_intstat(p);
aic_outb(p, sblkctl, SBLKCTL);
}
@@ -3285,7 +3941,7 @@
{
aic7xxx_reset_current_bus(p);
}
- aic_outb(p, 0, SCSISEQ);
+ aic_outb(p, aic_inb(p, SCSISEQ) & (ENSELI|ENRSELI|ENAUTOATNP), SCSISEQ);
aic7xxx_clear_intstat(p);
}
if (aic7xxx_verbose & VERBOSE_RESET_RETURN)
@@ -3296,7 +3952,13 @@
*/
aic7xxx_reset_device(p, ALL_TARGETS, channel, ALL_LUNS, SCB_LIST_NULL);
- if ( !(p->type & AHC_TWIN) )
+ /*
+ * Convince Mid Level SCSI code to leave us be for a little bit...
+ */
+ p->last_reset = jiffies;
+ p->host->last_reset = (jiffies + (HZ * AIC7XXX_RESET_DELAY));
+
+ if ( !(p->features & AHC_TWIN) )
{
restart_sequencer(p);
}
@@ -3312,7 +3974,7 @@
* Scan the awaiting_scbs queue downloading and starting as many
* scbs as we can.
*-F*************************************************************************/
-static inline void
+static void
aic7xxx_run_waiting_queues(struct aic7xxx_host *p)
{
struct aic7xxx_scb *scb;
@@ -3337,23 +3999,38 @@
tindex = TARGET_INDEX(scb->cmd);
if ( !scb->tag_action && (p->tagenable & (1<<tindex)) )
{
+#ifdef AIC7XXX_VERBOSE_DEBUGGING
+ if (aic7xxx_verbose > 0xffff)
+ printk(INFO_LEAD "Reducing Queue depth for untagged command.\n",
+ p->host_no, CTL_OF_SCB(scb));
+#endif
p->dev_temp_queue_depth[tindex] = 1;
}
if ( (p->dev_active_cmds[tindex] >=
p->dev_temp_queue_depth[tindex]) ||
(p->dev_last_reset[tindex] >= (jiffies - (4 * HZ))) )
{
- scbq_insert_tail(&p->delayed_scbs[tindex], scb);
- if ( !(p->dev_timer[tindex].expires) &&
- !(p->dev_active_cmds[tindex]) )
- {
- p->dev_timer[tindex].expires = p->dev_last_reset[tindex] + (4 * HZ);
- add_timer(&p->dev_timer[tindex]);
- }
+#ifdef AIC7XXX_VERBOSE_DEBUGGING
+ if (aic7xxx_verbose > 0xffff)
+ printk(INFO_LEAD "Moving SCB to Delayed Queue.\n",
+ p->host_no, CTL_OF_SCB(scb));
+#endif
+ scbq_insert_tail(&p->delayed_scbs[tindex], scb);
+ if ( !(p->dev_timer[tindex].expires) &&
+ !(p->dev_active_cmds[tindex]) )
+ {
+ p->dev_timer[tindex].expires = p->dev_last_reset[tindex] + (4 * HZ);
+ add_timer(&p->dev_timer[tindex]);
+ }
}
else
{
scb->flags &= ~SCB_WAITINGQ;
+#ifdef AIC7XXX_VERBOSE_DEBUGGING
+ if (aic7xxx_verbose > 0xffff)
+ printk(INFO_LEAD "Sending command %d/0x%x to QINFIFO\n", p->host_no,
+ CTL_OF_SCB(scb), scb->hscb->tag, scb->flags);
+#endif
p->dev_active_cmds[tindex]++;
p->activescbs++;
if ( !(scb->tag_action) )
@@ -3366,62 +4043,142 @@
}
if (sent)
{
- pause_sequencer(p);
- aic_outb(p, p->qinfifonext, KERNEL_QINPOS);
- unpause_sequencer(p, FALSE);
+#ifdef AIC7XXX_VERBOSE_DEBUGGING
+ if (aic7xxx_verbose > 0xffff)
+ {
+ printk(INFO_LEAD "Sending commands to QINFIFO\n", p->host_no,
+ -1, -1, -1);
+ if ( (p->isr_count < 16) && (aic7xxx_panic_on_abort) &&
+ (p->flags & AHC_PAGESCBS) )
+ aic7xxx_check_scbs(p, "While sending commands to QINFIFO");
+ }
+#endif
+ if (p->features & AHC_QUEUE_REGS)
+ aic_outb(p, p->qinfifonext, HNSCB_QOFF);
+ else
+ {
+ pause_sequencer(p);
+ aic_outb(p, p->qinfifonext, KERNEL_QINPOS);
+ unpause_sequencer(p, FALSE);
+ }
if (p->activescbs > p->max_activescbs)
p->max_activescbs = p->activescbs;
}
DRIVER_UNLOCK
}
+#ifdef CONFIG_PCI
+
+#define DPE 0x80
+#define SSE 0x40
+#define RMA 0x20
+#define RTA 0x10
+#define STA 0x08
+#define DPR 0x01
/*+F*************************************************************************
* Function:
- * aic7xxx_timer
+ * aic7xxx_pci_intr
*
* Description:
- * Take expired extries off of delayed queues and place on waiting queue
- * then run waiting queue to start commands.
- ***************************************************************************/
+ * Check the scsi card for PCI errors and clear the interrupt
+ *
+ * NOTE: If you don't have this function and a 2940 card encounters
+ * a PCI error condition, the machine will end up locked as the
+ * interrupt handler gets slammed with non-stop PCI error interrupts
+ *-F*************************************************************************/
static void
-aic7xxx_timer(struct aic7xxx_host *p)
+aic7xxx_pci_intr(struct aic7xxx_host *p)
{
- int i, j;
- unsigned long cpu_flags = 0;
- struct aic7xxx_scb *scb;
+ unsigned char status1;
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,1,95)
- DRIVER_LOCK
+#if LINUX_VERSION_CODE > KERNEL_VERSION(2,1,92)
+ pci_read_config_byte(p->pdev, PCI_STATUS + 1, &status1);
#else
- spin_lock_irqsave(&io_request_lock, cpu_flags);
+ pcibios_read_config_byte(p->pci_bus, p->pci_device_fn,
+ PCI_STATUS + 1, &status1);
#endif
- for(i=0; i<MAX_TARGETS; i++)
- {
- if ( (p->dev_timer[i].expires) &&
- (p->dev_timer[i].expires <= jiffies) )
- {
- p->dev_timer[i].expires = 0;
- if ( (p->dev_timer[i].prev != NULL) ||
- (p->dev_timer[i].next != NULL) )
- {
- del_timer(&p->dev_timer[i]);
- }
- p->dev_temp_queue_depth[i] = p->dev_max_queue_depth[i];
- j = 0;
- while ( ((scb = scbq_remove_head(&p->delayed_scbs[i])) != NULL) &&
- (j++ < p->scb_data->numscbs) )
- {
- scbq_insert_tail(&p->waiting_scbs, scb);
- }
- if (j == p->scb_data->numscbs)
- {
- printk(INFO_LEAD "timer: Yikes, loop in delayed_scbs list.\n",
- p->host_no, 0, i, -1);
- scbq_init(&p->delayed_scbs[i]);
- scbq_init(&p->waiting_scbs);
- /*
- * Well, things are screwed now, wait for a reset to clean the junk
+
+ if ( (status1 & DPE) && (aic7xxx_verbose & VERBOSE_MINOR_ERROR) )
+ printk(WARN_LEAD "Data Parity Error during PCI address or PCI write"
+ "phase.\n", p->host_no, -1, -1, -1);
+ if ( (status1 & SSE) && (aic7xxx_verbose & VERBOSE_MINOR_ERROR) )
+ printk(WARN_LEAD "Signal System Error Detected\n", p->host_no,
+ -1, -1, -1);
+ if ( (status1 & RMA) && (aic7xxx_verbose & VERBOSE_MINOR_ERROR) )
+ printk(WARN_LEAD "Received a PCI Master Abort\n", p->host_no,
+ -1, -1, -1);
+ if ( (status1 & RTA) && (aic7xxx_verbose & VERBOSE_MINOR_ERROR) )
+ printk(WARN_LEAD "Received a PCI Target Abort\n", p->host_no,
+ -1, -1, -1);
+ if ( (status1 & STA) && (aic7xxx_verbose & VERBOSE_MINOR_ERROR) )
+ printk(WARN_LEAD "Signaled a PCI Target Abort\n", p->host_no,
+ -1, -1, -1);
+ if ( (status1 & DPR) && (aic7xxx_verbose & VERBOSE_MINOR_ERROR) )
+ printk(WARN_LEAD "Data Parity Error has been reported via PCI pin "
+ "PERR#\n", p->host_no, -1, -1, -1);
+
+#if LINUX_VERSION_CODE > KERNEL_VERSION(2,1,92)
+ pci_write_config_byte(p->pdev, PCI_STATUS + 1, status1);
+#else
+ pcibios_write_config_byte(p->pci_bus, p->pci_device_fn,
+ PCI_STATUS + 1, status1);
+#endif
+ if (status1 & (DPR|RMA|RTA))
+ aic_outb(p, CLRPARERR, CLRINT);
+
+ if ( (aic7xxx_panic_on_abort) && (p->spurious_int > 500) )
+ aic7xxx_panic_abort(p, NULL);
+
+}
+#endif /* CONFIG_PCI */
+
+/*+F*************************************************************************
+ * Function:
+ * aic7xxx_timer
+ *
+ * Description:
+ * Take expired extries off of delayed queues and place on waiting queue
+ * then run waiting queue to start commands.
+ ***************************************************************************/
+static void
+aic7xxx_timer(struct aic7xxx_host *p)
+{
+ int i, j;
+ unsigned long cpu_flags = 0;
+ struct aic7xxx_scb *scb;
+
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,1,95)
+ DRIVER_LOCK
+#else
+ spin_lock_irqsave(&io_request_lock, cpu_flags);
+#endif
+ for(i=0; i<MAX_TARGETS; i++)
+ {
+ if ( (p->dev_timer[i].expires) &&
+ (p->dev_timer[i].expires <= jiffies) )
+ {
+ p->dev_timer[i].expires = 0;
+ if ( (p->dev_timer[i].prev != NULL) ||
+ (p->dev_timer[i].next != NULL) )
+ {
+ del_timer(&p->dev_timer[i]);
+ }
+ p->dev_temp_queue_depth[i] = p->dev_max_queue_depth[i];
+ j = 0;
+ while ( ((scb = scbq_remove_head(&p->delayed_scbs[i])) != NULL) &&
+ (j++ < p->scb_data->numscbs) )
+ {
+ scbq_insert_tail(&p->waiting_scbs, scb);
+ }
+ if (j == p->scb_data->numscbs)
+ {
+ printk(INFO_LEAD "timer: Yikes, loop in delayed_scbs list.\n",
+ p->host_no, 0, i, -1);
+ scbq_init(&p->delayed_scbs[i]);
+ scbq_init(&p->waiting_scbs);
+ /*
+ * Well, things are screwed now, wait for a reset to clean the junk
* out.
*/
}
@@ -3545,12 +4302,11 @@
aic7xxx_handle_device_reset(struct aic7xxx_host *p, int target, int channel)
{
unsigned short targ_mask;
- unsigned char targ_scratch;
- int scratch_offset = target;
+ unsigned char tindex = target;
- scratch_offset += channel << 3;
+ tindex |= ((channel & 0x01) << 3);
- targ_mask = (0x01 << scratch_offset);
+ targ_mask = (0x01 << tindex);
/*
* Go back to async/narrow transfers and renegotiate.
*/
@@ -3558,9 +4314,9 @@
p->needwdtr |= (p->needwdtr_copy & targ_mask);
p->sdtr_pending &= ~targ_mask;
p->wdtr_pending &= ~targ_mask;
- targ_scratch = aic_inb(p, TARG_SCRATCH + scratch_offset);
- targ_scratch &= SXFR;
- aic_outb(p, targ_scratch, TARG_SCRATCH + scratch_offset);
+ aic_outb(p, 0, TARG_SCSIRATE + tindex);
+ if (p->features & AHC_ULTRA2)
+ aic_outb(p, 0, TARG_OFFSET + tindex);
aic7xxx_reset_device(p, target, channel, ALL_LUNS, SCB_LIST_NULL);
if (aic7xxx_verbose & VERBOSE_RESET_PROCESS)
printk(INFO_LEAD "Bus Device Reset delivered.\n", p->host_no, channel,
@@ -3580,20 +4336,30 @@
{
struct aic7xxx_scb *scb;
unsigned short target_mask;
- unsigned char target, scratch_offset, lun;
+ unsigned char target, lun, tindex;
unsigned char queue_flag = FALSE;
char channel;
target = ((aic_inb(p, SAVED_TCL) >> 4) & 0x0f);
- channel = (aic_inb(p, SBLKCTL) >> 3) & 0x01;
- scratch_offset = target + (channel << 3);
+ if ( (p->chip & AHC_CHIPID_MASK) == AHC_AIC7770 )
+ channel = (aic_inb(p, SBLKCTL) & SELBUSB) >> 3;
+ else
+ channel = 0;
+ tindex = target + (channel << 3);
lun = aic_inb(p, SAVED_TCL) & 0x07;
- target_mask = (0x01 << scratch_offset);
+ target_mask = (0x01 << tindex);
+ /*
+ * Go ahead and clear the SEQINT now, that avoids any interrupt race
+ * conditions later on in case we enable some other interrupt.
+ */
+ aic_outb(p, CLRSEQINT, CLRINT);
switch (intstat & SEQINT_MASK)
{
case NO_MATCH:
{
+ aic_outb(p, aic_inb(p, SCSISEQ) & (ENSELI|ENRSELI|ENAUTOATNP),
+ SCSISEQ);
printk(WARN_LEAD "No active SCB for reconnecting target - Issuing "
"BUS DEVICE RESET.\n", p->host_no, channel, target, lun);
printk(WARN_LEAD " SAVED_TCL=0x%x, ARG_1=0x%x, SEQADDR=0x%x\n",
@@ -3654,12 +4420,11 @@
p->msg_len = 0;
p->msg_index = 0;
- /*
- * We have to clear the SEQINT *BEFORE* we set the REQINIT handler
- * active or else VLB and edge triggered EISA cards could loose the
- * first REQINIT and cause a bus hang/reset cycle.
- */
- aic_outb(p, CLRSEQINT, CLRINT);
+#ifdef AIC7XXX_VERBOSE_DEBUGGING
+ if (aic7xxx_verbose > 0xffff)
+ printk(INFO_LEAD "Enabling REQINITs for MSG_IN\n", p->host_no,
+ channel, target, lun);
+#endif
/*
* To actually receive the message, simply turn on
@@ -3682,13 +4447,11 @@
* or WDTR message for this target. If we did, this is a
* signal that the target is refusing negotiation.
*/
- unsigned char targ_scratch;
unsigned char scb_index;
unsigned char last_msg;
scb_index = aic_inb(p, SCB_TAG);
scb = p->scb_data->scb_array[scb_index];
- targ_scratch = aic_inb(p, TARG_SCRATCH + scratch_offset);
last_msg = aic_inb(p, LAST_MSG);
if ( (last_msg == MSG_IDENTIFYFLAG) &&
@@ -3696,7 +4459,7 @@
!(scb->flags & SCB_MSGOUT_BITS) )
{
if ((scb->tag_action == MSG_ORDERED_Q_TAG) &&
- (p->dev_flags[scratch_offset] & DEVICE_TAGGED_SUCCESS))
+ (p->dev_flags[tindex] & DEVICE_TAGGED_SUCCESS))
{
/*
* OK...the device seems able to accept tagged commands, but
@@ -3718,7 +4481,7 @@
aic_outb(p, aic_inb(p, SCSISIGI) | ATNO, SCSISIGO);
}
else if ( (scb->tag_action == MSG_SIMPLE_Q_TAG) &&
- !(p->dev_flags[scratch_offset] & DEVICE_TAGGED_SUCCESS) )
+ !(p->dev_flags[tindex] & DEVICE_TAGGED_SUCCESS) )
{
unsigned char i, reset = 0;
struct aic7xxx_scb *scbp;
@@ -3733,8 +4496,8 @@
*/
p->tagenable &= ~target_mask;
p->orderedtag &= ~target_mask;
- p->dev_max_queue_depth[scratch_offset] =
- p->dev_temp_queue_depth[scratch_offset] = 1;
+ p->dev_max_queue_depth[tindex] =
+ p->dev_temp_queue_depth[tindex] = 1;
/*
* We set this command up as a bus device reset. However, we have
* to clear the tag type as it's causing us problems. We shouldnt
@@ -3783,40 +4546,34 @@
/*
* note 8bit xfers and clear flag
*/
- targ_scratch &= 0x7F;
p->needwdtr &= ~target_mask;
p->needwdtr_copy &= ~target_mask;
p->wdtr_pending &= ~target_mask;
- if ( (aic7xxx_verbose & VERBOSE_NEGOTIATION) &&
- (p->dev_flags[scratch_offset] & DEVICE_PRINT_WDTR) )
+ scb->flags &= ~SCB_MSGOUT_BITS;
+ aic7xxx_set_width(p, target, channel, lun, MSG_EXT_WDTR_BUS_8_BIT,
+ (AHC_TRANS_ACTIVE|AHC_TRANS_GOAL|AHC_TRANS_CUR));
+ aic7xxx_set_syncrate(p, NULL, target, channel, 0, 0,
+ AHC_TRANS_ACTIVE|AHC_TRANS_CUR|AHC_TRANS_QUITE);
+ if ( (p->needsdtr_copy & target_mask) &&
+ !(p->sdtr_pending & target_mask) )
{
- printk(INFO_LEAD "Refusing WIDE negotiation; using 8 bit "
- "transfers.\n", p->host_no, CTL_OF_SCB(scb));
- p->dev_flags[scratch_offset] &= ~DEVICE_PRINT_WDTR;
- }
- scb->flags &= ~SCB_MSGOUT_WDTR_16BIT;
- p->syncinfo[scratch_offset].offset = MAX_OFFSET_8BIT;
- if (p->needsdtr_copy & target_mask)
- p->needsdtr |= target_mask;
+ p->sdtr_pending |= target_mask;
+ scb->flags |= SCB_MSGOUT_SDTR;
+ aic_outb(p, HOST_MSG, MSG_OUT);
+ aic_outb(p, aic_inb(p, SCSISIGO) | ATNO, SCSISIGO);
+ }
}
else if (scb->flags & SCB_MSGOUT_SDTR)
{
/*
* note asynch xfers and clear flag
*/
- targ_scratch &= 0xF0;
p->needsdtr &= ~target_mask;
p->needsdtr_copy &= ~target_mask;
p->sdtr_pending &= ~target_mask;
- p->syncinfo[scratch_offset].period = 0;
- p->syncinfo[scratch_offset].offset = 0;
- if ( (aic7xxx_verbose & VERBOSE_NEGOTIATION) &&
- (p->dev_flags[scratch_offset] & DEVICE_PRINT_SDTR) )
- {
- printk(INFO_LEAD "Refusing synchronous negotiation; using "
- "asynchronous transfers.\n", p->host_no, CTL_OF_SCB(scb));
- p->dev_flags[scratch_offset] &= ~DEVICE_PRINT_SDTR;
- }
+ scb->flags &= ~SCB_MSGOUT_SDTR;
+ aic7xxx_set_syncrate(p, NULL, target, channel, 0, 0,
+ (AHC_TRANS_CUR|AHC_TRANS_ACTIVE|AHC_TRANS_GOAL));
}
else if (aic7xxx_verbose & VERBOSE_SEQINT)
{
@@ -3826,8 +4583,6 @@
printk(INFO_LEAD "Received MESSAGE_REJECT for unknown cause. "
"Ignoring.\n", p->host_no, channel, target, lun);
}
- aic_outb(p, targ_scratch, TARG_SCRATCH + scratch_offset);
- aic_outb(p, targ_scratch, SCSIRATE);
}
break;
@@ -3842,11 +4597,15 @@
* the sequencer running in the common case of command completes
* without error. The sequencer will have DMA'd the SCB back
* up to us, so we can reference the drivers SCB array.
+ *
+ * Set the default return value to 0 indicating not to send
+ * sense. The sense code will change this if needed and this
+ * reduces code duplication.
*/
+ aic_outb(p, 0, RETURN_1);
scb_index = aic_inb(p, SCB_TAG);
if (scb_index > p->scb_data->numscbs)
{
- aic_outb(p, 0, RETURN_1);
printk(WARN_LEAD "Invalid SCB during SEQINT 0x%02x, SCB_TAG %d.\n",
p->host_no, channel, target, lun, intstat, scb_index);
break;
@@ -3854,12 +4613,6 @@
scb = p->scb_data->scb_array[scb_index];
hscb = scb->hscb;
- /*
- * Set the default return value to 0 indicating not to send
- * sense. The sense code will change this if needed and this
- * reduces code duplication.
- */
- aic_outb(p, 0, RETURN_1);
if (!(scb->flags & SCB_ACTIVE) || (scb->cmd == NULL))
{
printk(WARN_LEAD "Invalid SCB during SEQINT 0x%x, scb %d, flags 0x%x,"
@@ -3928,7 +4681,6 @@
scb->sg_count = hscb->SG_segment_count = 1;
scb->sg_length = sizeof(cmd->sense_buffer);
- scb->flags &= ~SCB_MSGOUT_BITS;
scb->tag_action = 0;
/*
* This problem could be caused if the target has lost power
@@ -3936,12 +4688,67 @@
* so if needed, we'll re-negotiate while doing the sense cmd.
* However, if this SCB already was attempting to negotiate,
* then we assume this isn't the problem and skip this part.
- *
- * 1998/04/23 - We also don't want to set the flag if the
- * original command was a TEST_UNIT_READY since that
- * implies a SEND_SENSE anyway.
*/
- if (scb->cmd->cmnd[0] != TEST_UNIT_READY)
+#ifdef AIC7XXX_FAKE_NEGOTIATION_CMDS
+ if ( (scb->cmd->cmnd[0] != TEST_UNIT_READY) &&
+ (p->dev_flags[tindex] & DEVICE_SCANNED) &&
+ !(p->wdtr_pending & target_mask) &&
+ !(p->sdtr_pending & target_mask) )
+ {
+ p->needwdtr |= (p->needwdtr_copy & target_mask);
+ p->needsdtr |= (p->needsdtr_copy & target_mask);
+ }
+ else if ( (scb->cmd == p->dev_wdtr_cmnd[tindex]) ||
+ (scb->cmd == p->dev_sdtr_cmnd[tindex]) )
+ {
+ /*
+ * This is already a negotiation command, so we must have
+ * already done either WDTR or SDTR (or maybe both). So
+ * we simply check sdtr_pending and needsdtr to see if we
+ * should throw out SDTR on this command.
+ *
+ * Note: Don't check the needsdtr_copy here, instead just
+ * check to see if WDTR wiped out our SDTR and set needsdtr.
+ * Even if WDTR did wipe out SDTR and set needsdtr, if
+ * parse_msg() then turned around and started our SDTR
+ * in back to back fasion, then conclusion of that should
+ * have negated any needsdtr setting. That's why we only
+ * check needsdtr and sdtr_pending.
+ */
+ scb->flags &= ~SCB_MSGOUT_BITS;
+ if ( (scb->cmd == p->dev_wdtr_cmnd[tindex]) &&
+ !(p->sdtr_pending & target_mask) &&
+ (p->needsdtr & target_mask) )
+ {
+ p->sdtr_pending |= target_mask;
+ hscb->control |= MK_MESSAGE;
+ scb->flags |= SCB_MSGOUT_SDTR;
+ }
+
+ /*
+ * This is the important part though. We are getting sense
+ * info back from this device. It's going into a fake
+ * command. We need to put that into the real command
+ * instead so that the mid level SCSI code can act upon it.
+ * So, when we set up these fake commands, the next pointer
+ * is used to point to the real command. Use that to change
+ * the address of our sense_buffer[] to the real command.
+ * However, don't do this if the real command is also a
+ * TEST_UNIT_READY as it will most likely pull down its own
+ * SENSE information anyway.
+ */
+ if (cmd->next->cmnd[0] != TEST_UNIT_READY)
+ {
+ scb->sg_list[0].address =
+ cpu_to_le32(VIRT_TO_BUS(&cmd->next->sense_buffer[0]));
+ hscb->data_pointer = scb->sg_list[0].address;
+ }
+ }
+#else
+ if ( (scb->cmd->cmnd[0] != TEST_UNIT_READY) &&
+ !(scb->flags & SCB_MSGOUT_BITS) &&
+ (scb->cmd->lun == 0) &&
+ (p->dev_flags[TARGET_INDEX(scb->cmd)] & DEVICE_SCANNED) )
{
if ( (p->needwdtr_copy & target_mask) &&
!(p->wdtr_pending & target_mask) &&
@@ -3950,7 +4757,7 @@
p->needwdtr |= target_mask;
p->wdtr_pending |= target_mask;
hscb->control |= MK_MESSAGE;
- scb->flags |= SCB_MSGOUT_WDTR_16BIT;
+ scb->flags |= SCB_MSGOUT_WDTR;
}
if ( p->needsdtr_copy & target_mask )
{
@@ -3964,12 +4771,26 @@
}
}
}
-
+ else
+ scb->flags &= ~SCB_MSGOUT_BITS;
+#endif /* AIC7XXX_FAKE_NEGOTIATION_CMDS */
scb->flags |= SCB_SENSE;
/*
* Ensure the target is busy since this will be an
* an untagged request.
*/
+#ifdef AIC7XXX_VERBOSE_DEBUGGING
+ if (aic7xxx_verbose > 0xffff)
+ {
+ if (scb->flags & SCB_MSGOUT_BITS)
+ printk(INFO_LEAD "Requesting SENSE with %s\n", p->host_no,
+ CTL_OF_SCB(scb), (scb->flags & SCB_MSGOUT_SDTR) ?
+ "SDTR" : "WDTR");
+ else
+ printk(INFO_LEAD "Requesting SENSE, no MSG\n", p->host_no,
+ CTL_OF_SCB(scb));
+ }
+#endif
aic7xxx_busy_target(p, scb);
aic_outb(p, SEND_SENSE, RETURN_1);
aic7xxx_error(cmd) = DID_OK;
@@ -3994,7 +4815,7 @@
*/
aic7xxx_search_qinfifo(p, target, channel, lun,
SCB_LIST_NULL, 0, TRUE,
- &p->delayed_scbs[scratch_offset]);
+ &p->delayed_scbs[tindex]);
next_scbp = p->waiting_scbs.head;
while ( next_scbp != NULL )
{
@@ -4004,7 +4825,7 @@
SCB_LIST_NULL) )
{
scbq_remove(&p->waiting_scbs, prev_scbp);
- scbq_insert_tail(&p->delayed_scbs[scratch_offset],
+ scbq_insert_tail(&p->delayed_scbs[tindex],
prev_scbp);
}
}
@@ -4024,15 +4845,15 @@
{
if (next_scbp->flags & SCB_WAITINGQ)
{
- p->dev_active_cmds[scratch_offset]++;
+ p->dev_active_cmds[tindex]++;
p->activescbs--;
- scbq_remove(&p->delayed_scbs[scratch_offset], next_scbp);
+ scbq_remove(&p->delayed_scbs[tindex], next_scbp);
scbq_remove(&p->waiting_scbs, next_scbp);
}
- scbq_insert_head(&p->delayed_scbs[scratch_offset],
+ scbq_insert_head(&p->delayed_scbs[tindex],
next_scbp);
next_scbp->flags |= SCB_WAITINGQ;
- p->dev_active_cmds[scratch_offset]--;
+ p->dev_active_cmds[tindex]--;
p->activescbs--;
next_hscb = aic_inb(p, SCB_NEXT);
aic_outb(p, 0, SCB_CONTROL);
@@ -4065,65 +4886,67 @@
aic_outb(p, active_hscb, SCBPTR);
if (scb->flags & SCB_WAITINGQ)
{
- scbq_remove(&p->delayed_scbs[scratch_offset], scb);
+ scbq_remove(&p->delayed_scbs[tindex], scb);
scbq_remove(&p->waiting_scbs, scb);
- p->dev_active_cmds[scratch_offset]++;
+ p->dev_active_cmds[tindex]++;
p->activescbs++;
}
- scbq_insert_head(&p->delayed_scbs[scratch_offset], scb);
- p->dev_active_cmds[scratch_offset]--;
+ scbq_insert_head(&p->delayed_scbs[tindex], scb);
+ p->dev_active_cmds[tindex]--;
p->activescbs--;
scb->flags |= SCB_WAITINGQ | SCB_WAS_BUSY;
- if (p->dev_timer[scratch_offset].expires == 0)
+ if (p->dev_timer[tindex].expires == 0)
{
- if ( p->dev_active_cmds[scratch_offset] )
+ if ( p->dev_active_cmds[tindex] )
{
- p->dev_timer[scratch_offset].expires = jiffies + (HZ * 2);
- add_timer(&p->dev_timer[scratch_offset]);
+ p->dev_timer[tindex].expires = jiffies + (HZ * 2);
+ add_timer(&p->dev_timer[tindex]);
}
else
{
- p->dev_timer[scratch_offset].expires = jiffies + (HZ / 2);
- add_timer(&p->dev_timer[scratch_offset]);
+ p->dev_timer[tindex].expires = jiffies + (HZ / 2);
+ add_timer(&p->dev_timer[tindex]);
}
}
- if (aic7xxx_verbose & VERBOSE_QUEUE_FULL)
+#ifdef AIC7XXX_VERBOSE_DEBUGGING
+ if (aic7xxx_verbose & VERBOSE_MINOR_ERROR)
{
if (queue_flag)
printk(INFO_LEAD "Queue full received; queue depth %d, "
"active %d\n", p->host_no, CTL_OF_SCB(scb),
- p->dev_max_queue_depth[scratch_offset],
- p->dev_active_cmds[scratch_offset]);
+ p->dev_max_queue_depth[tindex],
+ p->dev_active_cmds[tindex]);
else
printk(INFO_LEAD "Target busy\n", p->host_no, CTL_OF_SCB(scb));
}
+#endif
if (queue_flag)
{
- p->dev_temp_queue_depth[scratch_offset] =
- p->dev_active_cmds[scratch_offset];
- if ( p->dev_last_queue_full[scratch_offset] !=
- p->dev_active_cmds[scratch_offset] )
+ p->dev_temp_queue_depth[tindex] =
+ p->dev_active_cmds[tindex];
+ if ( p->dev_last_queue_full[tindex] !=
+ p->dev_active_cmds[tindex] )
{
- p->dev_last_queue_full[scratch_offset] =
- p->dev_active_cmds[scratch_offset];
- p->dev_last_queue_full_count[scratch_offset] = 0;
+ p->dev_last_queue_full[tindex] =
+ p->dev_active_cmds[tindex];
+ p->dev_last_queue_full_count[tindex] = 0;
}
else
{
- p->dev_last_queue_full_count[scratch_offset]++;
+ p->dev_last_queue_full_count[tindex]++;
}
- if ( (p->dev_last_queue_full_count[scratch_offset] > 14) &&
- (p->dev_active_cmds[scratch_offset] > 4) )
+ if ( (p->dev_last_queue_full_count[tindex] > 14) &&
+ (p->dev_active_cmds[tindex] > 4) )
{
- if (aic7xxx_verbose & VERBOSE_NEGOTIATION)
+ if (aic7xxx_verbose & VERBOSE_NEGOTIATION2)
printk(INFO_LEAD "Queue depth reduced to %d\n", p->host_no,
- CTL_OF_SCB(scb), p->dev_active_cmds[scratch_offset]);
- p->dev_max_queue_depth[scratch_offset] =
- p->dev_active_cmds[scratch_offset];
- p->dev_last_queue_full[scratch_offset] = 0;
- p->dev_last_queue_full_count[scratch_offset] = 0;
+ CTL_OF_SCB(scb), p->dev_active_cmds[tindex]);
+ p->dev_max_queue_depth[tindex] =
+ p->dev_active_cmds[tindex];
+ p->dev_last_queue_full[tindex] = 0;
+ p->dev_last_queue_full_count[tindex] = 0;
}
}
break;
@@ -4157,6 +4980,15 @@
* this target.
*/
+ if ( !(scb->flags & SCB_DEVICE_RESET) &&
+ (aic_inb(p, MSG_OUT) == MSG_IDENTIFYFLAG) &&
+ (scb->hscb->control & TAG_ENB) )
+ {
+ p->msg_buf[p->msg_index++] = scb->tag_action;
+ p->msg_buf[p->msg_index++] = scb->hscb->tag;
+ p->msg_len += 2;
+ }
+
if (scb->flags & SCB_DEVICE_RESET)
{
p->msg_buf[p->msg_index++] = MSG_BUS_DEV_RESET;
@@ -4169,12 +5001,6 @@
{
if (scb->tag_action)
{
- if (msg_out == MSG_IDENTIFYFLAG)
- {
- p->msg_buf[p->msg_index++] = scb->tag_action;
- p->msg_buf[p->msg_index++] = scb->hscb->tag;
- p->msg_len += 2;
- }
p->msg_buf[p->msg_index++] = MSG_ABORT_TAG;
}
else
@@ -4188,23 +5014,67 @@
}
else if (scb->flags & SCB_MSGOUT_WDTR)
{
- aic7xxx_construct_wdtr(p, (scb->flags & SCB_WDTR_16BIT));
+#ifdef AIC7XXX_VERBOSE_DEBUGGING
+ if (aic7xxx_verbose > 0xffff)
+ printk(INFO_LEAD "Sending WDTR message.\n", p->host_no,
+ CTL_OF_SCB(scb));
+#endif
+ aic7xxx_construct_wdtr(p,
+ p->transinfo[TARGET_INDEX(scb->cmd)].goal_width);
}
else if (scb->flags & SCB_MSGOUT_SDTR)
{
- unsigned char period, offset;
-
+ unsigned int max_sync, period;
+ /*
+ * We need to set an accurate goal_offset instead of
+ * the ridiculously high one we default to. We should
+ * now know if we are wide. Plus, the WDTR code will
+ * set our goal_offset for us as well.
+ */
+ if (p->transinfo[tindex].goal_offset)
+ {
+ if (p->features & AHC_ULTRA2)
+ p->transinfo[tindex].goal_offset = MAX_OFFSET_ULTRA2;
+ else if (p->transinfo[tindex].cur_width == MSG_EXT_WDTR_BUS_16_BIT)
+ p->transinfo[tindex].goal_offset = MAX_OFFSET_16BIT;
+ else
+ p->transinfo[tindex].goal_offset = MAX_OFFSET_8BIT;
+ }
/*
- * Pull the user defined setting from scratch RAM.
+ * Now that the device is selected, use the bits in SBLKCTL and
+ * SSTAT2 to determine the max sync rate for this device.
*/
- period = p->syncinfo[scratch_offset].period;
- offset = p->syncinfo[scratch_offset].offset;
- if ( (p->needsdtr_copy & target_mask) == 0)
+ if (p->features & AHC_ULTRA2)
+ {
+ if ( (aic_inb(p, SBLKCTL) & ENAB40) &&
+ !(aic_inb(p, SSTAT2) & EXP_ACTIVE) )
+ {
+ max_sync = AHC_SYNCRATE_ULTRA2;
+ }
+ else
+ {
+ max_sync = AHC_SYNCRATE_ULTRA;
+ }
+ }
+ else if (p->features & AHC_ULTRA)
{
- period = 0;
- offset = 0;
+ max_sync = AHC_SYNCRATE_ULTRA;
}
- aic7xxx_construct_sdtr(p, period, offset);
+ else
+ {
+ max_sync = AHC_SYNCRATE_FAST;
+ }
+ period = p->transinfo[tindex].goal_period;
+ aic7xxx_find_syncrate(p, &period, max_sync);
+#ifdef AIC7XXX_VERBOSE_DEBUGGING
+ if (aic7xxx_verbose > 0xffff)
+ printk(INFO_LEAD "Sending SDTR %d/%d message.\n", p->host_no,
+ CTL_OF_SCB(scb),
+ p->transinfo[tindex].goal_period,
+ p->transinfo[tindex].goal_offset);
+#endif
+ aic7xxx_construct_sdtr(p, period,
+ p->transinfo[tindex].goal_offset);
}
else
{
@@ -4224,7 +5094,7 @@
* have this problem since they continually interrupt the kernel
* until we take care of the situation.
*/
- aic_outb(p, CLRSEQINT, CLRINT);
+ scb->flags |= SCB_MSGOUT_SENT;
p->msg_index = 0;
p->msg_type = MSG_TYPE_INITIATOR_MSGOUT;
p->flags |= AHC_HANDLING_REQINITS;
@@ -4273,6 +5143,7 @@
}
break;
+#if AIC7XXX_NOT_YET
case TRACEPOINT:
{
printk(INFO_LEAD "Tracepoint #1 reached.\n", p->host_no, channel,
@@ -4287,7 +5158,6 @@
}
break;
-#if AIC7XXX_NOT_YET
/* XXX Fill these in later */
case MSG_BUFFER_BUSY:
printk("aic7xxx: Message buffer busy.\n");
@@ -4307,7 +5177,6 @@
/*
* Clear the sequencer interrupt and unpause the sequencer.
*/
- aic_outb(p, CLRSEQINT, CLRINT);
unpause_sequencer(p, /* unpause always */ TRUE);
}
@@ -4322,14 +5191,18 @@
static int
aic7xxx_parse_msg(struct aic7xxx_host *p, struct aic7xxx_scb *scb)
{
- int reject, done;
- unsigned char target_scratch, scratch_offset;
+ int reject, reply, done;
+ unsigned char target_scsirate, tindex;
unsigned short target_mask;
+ unsigned char target, channel, lun;
- reject = done = FALSE;
- scratch_offset = TARGET_INDEX(scb->cmd);
- target_scratch = aic_inb(p, TARG_SCRATCH + scratch_offset);
- target_mask = (0x01 << scratch_offset);
+ target = scb->cmd->target;
+ channel = scb->cmd->channel;
+ lun = scb->cmd->lun;
+ reply = reject = done = FALSE;
+ tindex = TARGET_INDEX(scb->cmd);
+ target_scsirate = aic_inb(p, TARG_SCSIRATE + tindex);
+ target_mask = (0x01 << tindex);
/*
* Parse as much of the message as is availible,
@@ -4355,9 +5228,10 @@
{
case MSG_EXT_SDTR:
{
- unsigned char period, response_period, offset;
- unsigned char max_offset, saved_offset, rate;
-
+ unsigned int period, offset;
+ unsigned char maxsync, saved_offset;
+ struct aic7xxx_syncrate *syncrate;
+
if (p->msg_buf[1] != MSG_EXT_SDTR_LEN)
{
reject = TRUE;
@@ -4370,51 +5244,114 @@
}
period = p->msg_buf[3];
- saved_offset = p->msg_buf[4];
+ saved_offset = offset = p->msg_buf[4];
- if (target_scratch & WIDEXFER)
+ if (p->features & AHC_ULTRA2)
+ {
+ if ( (aic_inb(p, SBLKCTL) & ENAB40) &&
+ !(aic_inb(p, SSTAT2) & EXP_ACTIVE) )
+ {
+ maxsync = AHC_SYNCRATE_ULTRA2;
+ }
+ else
+ {
+ maxsync = AHC_SYNCRATE_ULTRA;
+ }
+ }
+ else if (p->features & AHC_ULTRA)
{
- max_offset = MAX_OFFSET_16BIT;
+ maxsync = AHC_SYNCRATE_ULTRA;
}
else
{
- max_offset = MAX_OFFSET_8BIT;
+ maxsync = AHC_SYNCRATE_FAST;
}
- offset = MIN(saved_offset, max_offset);
- response_period = aic7xxx_scsirate(p, &rate, &period,
- &offset, scb->cmd->target, scb->cmd->channel, /* set */ TRUE);
- /* Preserve the WideXfer flag */
- target_scratch = rate | (target_scratch & WIDEXFER);
-
- /*
- * Update the TARGET_SCRATCH, the SCSIRATE, and our syncinfo
- * areas.
- */
- aic_outb(p, target_scratch, TARG_SCRATCH + scratch_offset);
- aic_outb(p, target_scratch, SCSIRATE);
- p->syncinfo[scratch_offset].period = response_period;
- p->syncinfo[scratch_offset].offset = offset;
+
+#ifdef AIC7XXX_VERBOSE_DEBUGGING
+ if (aic7xxx_verbose > 0xffff)
+ {
+ printk(INFO_LEAD "Finished receipt of SDTR, parsing %d/%d\n",
+ p->host_no, CTL_OF_SCB(scb), period, offset);
+ syncrate = aic7xxx_find_syncrate(p, &period, maxsync);
+ printk(INFO_LEAD "After find_syncrate() %d/%d\n",
+ p->host_no, CTL_OF_SCB(scb), period, offset);
+ aic7xxx_validate_offset(p, syncrate, &offset,
+ target_scsirate & WIDEXFER);
+ printk(INFO_LEAD "After validate_offset() %d/%d\n",
+ p->host_no, CTL_OF_SCB(scb), period, offset);
+ aic7xxx_set_syncrate(p, syncrate, target, channel, period,
+ offset, AHC_TRANS_ACTIVE|AHC_TRANS_CUR);
+ printk(INFO_LEAD "Final values of Period/Offset as set: %d/%d\n",
+ p->host_no, CTL_OF_SCB(scb), period, offset);
+ }
+ else
+ {
+ syncrate = aic7xxx_find_syncrate(p, &period, maxsync);
+ aic7xxx_validate_offset(p, syncrate, &offset,
+ target_scsirate & WIDEXFER);
+ aic7xxx_set_syncrate(p, syncrate, target, channel, period,
+ offset, AHC_TRANS_ACTIVE|AHC_TRANS_CUR);
+ }
+#else
+ syncrate = aic7xxx_find_syncrate(p, &period, maxsync);
+ aic7xxx_validate_offset(p, syncrate, &offset,
+ target_scsirate & WIDEXFER);
+ aic7xxx_set_syncrate(p, syncrate, target, channel, period,
+ offset, AHC_TRANS_ACTIVE|AHC_TRANS_CUR);
+#endif
+ if (offset == 0)
+ {
+ /*
+ * Uhh ohh, things fell through to async....update the goal
+ * items and the needsdtr_copy to reflect this...
+ */
+ aic7xxx_set_syncrate(p, syncrate, target, channel, period,
+ offset, AHC_TRANS_GOAL|AHC_TRANS_QUITE);
+ p->needsdtr_copy &= ~target_mask;
+ }
/*
* Did we start this, if not, or if we went to low and had to
* go async, then send an SDTR back to the target
*/
p->needsdtr &= ~target_mask;
- if (scb->flags & SCB_MSGOUT_SDTR)
+ p->sdtr_pending &= ~target_mask;
+ if ( ((scb->flags & (SCB_MSGOUT_SENT|SCB_MSGOUT_SDTR)) ==
+ (SCB_MSGOUT_SENT|SCB_MSGOUT_SDTR)) &&
+ (offset == saved_offset) )
{
- if (saved_offset != offset)
- {
- p->needsdtr_copy &= ~target_mask;
- reject = TRUE;
- }
- scb->flags &= ~SCB_MSGOUT_SDTR;
- p->sdtr_pending &= ~target_mask;
+ scb->flags &= ~SCB_MSGOUT_BITS;
}
else
{
+ /*
+ * Send a reply SDTR back. Even if we sent the first one, it
+ * is valid to send another one out immediately to re-negotiate
+ * things, and a few devices don't like getting rejects after
+ * we already sent them one SDTR. Just send an SDTR for async
+ * this time if need be (or for the correct params if we didn't
+ * start all of this). If this is a Reject Reply type message,
+ * then we've put the async settings into the goal area for
+ * future reference (when we get the AWAITING_MSG interrupt).
+ * If this is a case where we are responding to the target's
+ * initiated SDTR, then leave our own goal and user values in
+ * place (unless the device hasn't been scanned yet, in which
+ * case, put the user values into the goal values so we don't
+ * send out an Async message).
+ */
+ if ( !(p->dev_flags[tindex] & DEVICE_SCANNED) )
+ {
+ p->transinfo[tindex].goal_width =
+ p->transinfo[tindex].user_width;
+ p->transinfo[tindex].goal_period =
+ p->transinfo[tindex].user_period;
+ p->transinfo[tindex].goal_offset =
+ p->transinfo[tindex].user_offset;
+ p->needwdtr_copy |= target_mask;
+ p->needsdtr_copy |= target_mask;
+ }
scb->flags &= ~SCB_MSGOUT_BITS;
scb->flags |= SCB_MSGOUT_SDTR;
- p->sdtr_pending |= target_mask;
aic_outb(p, HOST_MSG, MSG_OUT);
aic_outb(p, aic_inb(p, SCSISIGO) | ATNO, SCSISIGO);
}
@@ -4437,112 +5374,111 @@
}
bus_width = p->msg_buf[3];
- p->needwdtr &= ~target_mask;
- if (scb->flags & SCB_MSGOUT_WDTR)
+ if ( (scb->flags & (SCB_MSGOUT_SENT|SCB_MSGOUT_WDTR)) ==
+ (SCB_MSGOUT_SENT|SCB_MSGOUT_WDTR) )
{
switch(bus_width)
{
default:
{
reject = TRUE;
- if ( (aic7xxx_verbose & VERBOSE_NEGOTIATION) &&
- (p->dev_flags[scratch_offset] & DEVICE_PRINT_WDTR) )
+ if ( (aic7xxx_verbose & VERBOSE_NEGOTIATION2) &&
+ ((p->dev_flags[tindex] & DEVICE_PRINT_WDTR) ||
+ (aic7xxx_verbose > 0xffff)) )
{
printk(INFO_LEAD "Requesting %d bit transfers, rejecting.\n",
p->host_no, CTL_OF_SCB(scb), 8 * (0x01 << bus_width));
- p->dev_flags[scratch_offset] &= ~DEVICE_PRINT_WDTR;
+ p->dev_flags[tindex] &= ~DEVICE_PRINT_WDTR;
}
} /* We fall through on purpose */
case MSG_EXT_WDTR_BUS_8_BIT:
{
bus_width = MSG_EXT_WDTR_BUS_8_BIT;
p->needwdtr_copy &= ~target_mask;
- target_scratch &= 0x7f;
- if ( (aic7xxx_verbose & VERBOSE_NEGOTIATION) &&
- (p->dev_flags[scratch_offset] & DEVICE_PRINT_WDTR) )
- {
- printk(INFO_LEAD "Using narrow (8 bit) transfers.\n",
- p->host_no, CTL_OF_SCB(scb));
- p->dev_flags[scratch_offset] &= ~DEVICE_PRINT_WDTR;
- }
break;
}
case MSG_EXT_WDTR_BUS_16_BIT:
{
- if ( (aic7xxx_verbose & VERBOSE_NEGOTIATION) &&
- (p->dev_flags[scratch_offset] & DEVICE_PRINT_WDTR) )
- {
- printk(INFO_LEAD "Using wide (16 bit) transfers.\n",
- p->host_no, CTL_OF_SCB(scb));
- p->dev_flags[scratch_offset] &= ~DEVICE_PRINT_WDTR;
- }
- target_scratch |= WIDEXFER;
break;
}
}
- scb->flags &= ~SCB_MSGOUT_WDTR_16BIT;
+ scb->flags &= ~SCB_MSGOUT_BITS;
p->wdtr_pending &= ~target_mask;
- /*
- * By virtue of the SCSI spec, a WDTR message negates any existing
- * SDTR negotiations. So, even if needsdtr isn't marked for this
- * device, we still have to do a new SDTR message if the device
- * supports SDTR at all. Therefore, we check needsdtr_copy instead
- * of needstr.
- */
- if ( (p->needsdtr_copy & target_mask) &&
- !(p->sdtr_pending & target_mask))
- {
- p->needsdtr |= target_mask;
- }
+ p->needwdtr &= ~target_mask;
}
else
{
scb->flags &= ~SCB_MSGOUT_BITS;
+ scb->flags |= SCB_MSGOUT_WDTR;
+ reply = TRUE;
+ if ( !(p->dev_flags[tindex] & DEVICE_SCANNED) )
+ {
+ /*
+ * Well, we now know the WDTR and SYNC caps of this device since
+ * it contacted us first, mark it as such and copy the user stuff
+ * over to the goal stuff.
+ */
+ p->transinfo[tindex].goal_width =
+ p->transinfo[tindex].user_width;
+ p->transinfo[tindex].goal_period =
+ p->transinfo[tindex].user_period;
+ p->transinfo[tindex].goal_offset =
+ p->transinfo[tindex].user_offset;
+ p->needwdtr_copy |= target_mask;
+ p->needsdtr_copy |= target_mask;
+ }
switch(bus_width)
{
default:
{
- if (p->type & AHC_WIDE)
+ if ( (p->features & AHC_WIDE) &&
+ (p->transinfo[tindex].goal_width ==
+ MSG_EXT_WDTR_BUS_16_BIT) )
{
bus_width = MSG_EXT_WDTR_BUS_16_BIT;
- p->needwdtr_copy |= target_mask;
- scb->flags |= SCB_MSGOUT_WDTR_16BIT;
- target_scratch |= WIDEXFER;
- if ( (aic7xxx_verbose & VERBOSE_NEGOTIATION) &&
- (p->dev_flags[scratch_offset] & DEVICE_PRINT_WDTR) )
- {
- printk(INFO_LEAD "Using wide (16 bit) transfers.\n",
- p->host_no, CTL_OF_SCB(scb));
- p->dev_flags[scratch_offset] &= ~DEVICE_PRINT_WDTR;
- }
break;
}
} /* Fall through if we aren't a wide card */
case MSG_EXT_WDTR_BUS_8_BIT:
{
- bus_width = MSG_EXT_WDTR_BUS_8_BIT;
p->needwdtr_copy &= ~target_mask;
- scb->flags |= SCB_MSGOUT_WDTR_8BIT;
- target_scratch &= 0x7f;
- if ( (aic7xxx_verbose & VERBOSE_NEGOTIATION) &&
- (p->dev_flags[scratch_offset] & DEVICE_PRINT_WDTR) )
- {
- printk(INFO_LEAD "Using narrow (8 bit) transfers.\n",
- p->host_no, CTL_OF_SCB(scb));
- p->dev_flags[scratch_offset] &= ~DEVICE_PRINT_WDTR;
- }
+ bus_width = MSG_EXT_WDTR_BUS_8_BIT;
break;
}
}
+ p->needwdtr &= ~target_mask;
+ p->wdtr_pending &= ~target_mask;
aic_outb(p, HOST_MSG, MSG_OUT);
aic_outb(p, aic_inb(p, SCSISIGO) | ATNO, SCSISIGO);
- p->wdtr_pending |= target_mask;
}
- aic_outb(p, target_scratch, SCSIRATE);
- aic_outb(p, target_scratch, TARG_SCRATCH + scratch_offset);
- p->syncinfo[scratch_offset].offset =
- (bus_width == MSG_EXT_WDTR_BUS_8_BIT) ?
- MAX_OFFSET_8BIT : MAX_OFFSET_16BIT;
+ aic7xxx_set_width(p, target, channel, lun, bus_width,
+ AHC_TRANS_ACTIVE|AHC_TRANS_CUR);
+
+ /*
+ * By virtue of the SCSI spec, a WDTR message negates any existing
+ * SDTR negotiations. So, even if needsdtr isn't marked for this
+ * device, we still have to do a new SDTR message if the device
+ * supports SDTR at all. Therefore, we check needsdtr_copy instead
+ * of needstr.
+ */
+ aic7xxx_set_syncrate(p, NULL, target, channel, 0, 0,
+ AHC_TRANS_ACTIVE|AHC_TRANS_CUR|AHC_TRANS_QUITE);
+ if ( (p->needsdtr_copy & target_mask) &&
+ !(p->sdtr_pending & target_mask))
+ {
+ p->needsdtr |= target_mask;
+ if ( !reject && !reply )
+ {
+ scb->flags &= ~SCB_MSGOUT_WDTR;
+ if (p->transinfo[tindex].goal_period)
+ {
+ p->sdtr_pending |= target_mask;
+ scb->flags |= SCB_MSGOUT_SDTR;
+ aic_outb(p, HOST_MSG, MSG_OUT);
+ aic_outb(p, aic_inb(p, SCSISIGO) | ATNO, SCSISIGO);
+ }
+ }
+ }
done = TRUE;
break;
}
@@ -4558,10 +5494,12 @@
{
aic_outb(p, MSG_MESSAGE_REJECT, MSG_OUT);
aic_outb(p, aic_inb(p, SCSISIGO) | ATNO, SCSISIGO);
+ done = TRUE;
}
return(done);
}
+
/*+F*************************************************************************
* Function:
* aic7xxx_handle_reqinit
@@ -4605,10 +5543,20 @@
{
aic_outb(p, p->msg_buf[p->msg_index], SINDEX);
aic_outb(p, 0, RETURN_1);
+#ifdef AIC7XXX_VERBOSE_DEBUGGING
+ if (aic7xxx_verbose > 0xffff)
+ printk(INFO_LEAD "Completed sending of REQINIT message.\n",
+ p->host_no, CTL_OF_SCB(scb));
+#endif
}
else
{
aic_outb(p, MSGOUT_PHASEMIS, RETURN_1);
+#ifdef AIC7XXX_VERBOSE_DEBUGGING
+ if (aic7xxx_verbose > 0xffff)
+ printk(INFO_LEAD "PHASEMIS while sending REQINIT message.\n",
+ p->host_no, CTL_OF_SCB(scb));
+#endif
}
unpause_sequencer(p, TRUE);
}
@@ -4642,12 +5590,23 @@
}
if (phasemis || done)
{
+#ifdef AIC7XXX_VERBOSE_DEBUGGING
+ if (aic7xxx_verbose > 0xffff)
+ {
+ if (phasemis)
+ printk(INFO_LEAD "PHASEMIS while receiving REQINIT message.\n",
+ p->host_no, CTL_OF_SCB(scb));
+ else
+ printk(INFO_LEAD "Completed receipt of REQINIT message.\n",
+ p->host_no, CTL_OF_SCB(scb));
+ }
+#endif
/* Time to end our message session */
p->msg_len = 0;
p->msg_type = MSG_TYPE_NONE;
- p->flags &= ~AHC_HANDLING_REQINITS;
aic_outb(p, aic_inb(p, SIMODE1) & ~ENREQINIT, SIMODE1);
aic_outb(p, CLRSCSIINT, CLRINT);
+ p->flags &= ~AHC_HANDLING_REQINITS;
unpause_sequencer(p, TRUE);
}
break;
@@ -4691,30 +5650,14 @@
}
- if ( (p->flags & AHC_HANDLING_REQINITS) && (status & REQINIT) )
- {
- if (scb)
- {
- aic7xxx_handle_reqinit(p, scb);
- }
- else
- {
- p->flags &= ~AHC_HANDLING_REQINITS;
- aic_outb(p, aic_inb(p, SIMODE1) & ~ENREQINIT, SIMODE1);
- aic_outb(p, CLRREQINIT, CLRSINT1);
- aic_outb(p, CLRSCSIINT, CLRINT);
- p->msg_type = MSG_TYPE_NONE;
- p->msg_index = 0;
- p->msg_len = 0;
- }
- return;
- }
-
if ((status & SCSIRSTI) != 0)
{
int channel;
- channel = (aic_inb(p, SBLKCTL) & SELBUSB) >> 3;
+ if ( (p->chip & AHC_CHIPID_MASK) == AHC_AIC7770 )
+ channel = (aic_inb(p, SBLKCTL) & SELBUSB) >> 3;
+ else
+ channel = 0;
if (aic7xxx_verbose & VERBOSE_RESET)
printk(WARN_LEAD "Someone else reset the channel!!\n",
@@ -4737,10 +5680,16 @@
unsigned char lastphase = aic_inb(p, LASTPHASE);
unsigned char saved_tcl = aic_inb(p, SAVED_TCL);
unsigned char target = (saved_tcl >> 4) & 0x0F;
- int channel = (aic_inb(p, SBLKCTL) & SELBUSB) >> 3;
+ int channel;
int printerror = TRUE;
- aic_outb(p, 0, SCSISEQ);
+ if ( (p->chip & AHC_CHIPID_MASK) == AHC_AIC7770 )
+ channel = (aic_inb(p, SBLKCTL) & SELBUSB) >> 3;
+ else
+ channel = 0;
+
+ aic_outb(p, aic_inb(p, SCSISEQ) & (ENSELI|ENRSELI|ENAUTOATNP),
+ SCSISEQ);
if (lastphase == P_MESGOUT)
{
unsigned char message;
@@ -4782,20 +5731,16 @@
aic7xxx_reset_device(p, target, channel, ALL_LUNS, tag);
aic7xxx_run_done_queue(p, FALSE);
}
- else
- { /* Since we don't really know what happened here, we'll wait */
- /* for the commands to timeout and get aborted if need be */
- aic7xxx_add_curscb_to_free_list(p);
- }
printk(INFO_LEAD "Unexpected busfree, LASTPHASE = 0x%x, "
"SEQADDR = 0x%x\n", p->host_no, channel, target, -1, lastphase,
(aic_inb(p, SEQADDR1) << 8) | aic_inb(p, SEQADDR0));
scb = NULL;
}
+ aic_outb(p, MSG_NOOP, MSG_OUT);
aic_outb(p, aic_inb(p, SIMODE1) & ~(ENBUSFREE|ENREQINIT),
SIMODE1);
p->flags &= ~AHC_HANDLING_REQINITS;
- aic_outb(p, CLRBUSFREE | CLRREQINIT, CLRSINT1);
+ aic_outb(p, CLRBUSFREE, CLRSINT1);
aic_outb(p, CLRSCSIINT, CLRINT);
restart_sequencer(p);
unpause_sequencer(p, TRUE);
@@ -4807,6 +5752,24 @@
Scsi_Cmnd *cmd;
scbptr = aic_inb(p, WAITING_SCBH);
+ if (scbptr > p->scb_data->maxhscbs)
+ {
+ /*
+ * I'm still trying to track down exactly how this happens, but until
+ * I find it, this code will make sure we aren't passing bogus values
+ * into the SCBPTR register, even if that register will just wrap
+ * things around, we still don't like having out of range variables.
+ *
+ * NOTE: Don't check the aic7xxx_verbose variable, I want this message
+ * to always be displayed.
+ */
+ printk(INFO_LEAD "Invalid WAITING_SCBH value %d, improvising.\n",
+ p->host_no, -1, -1, -1, scbptr);
+ if (p->scb_data->maxhscbs > 4)
+ scbptr &= (p->scb_data->maxhscbs - 1);
+ else
+ scbptr &= 0x03;
+ }
aic_outb(p, scbptr, SCBPTR);
scb_index = aic_inb(p, SCB_TAG);
@@ -4827,6 +5790,8 @@
"SSTAT1 = 0x%x\n", aic_inb(p, SCSISEQ),
aic_inb(p, SEQADDR0) | (aic_inb(p, SEQADDR1) << 8),
aic_inb(p, SSTAT0), aic_inb(p, SSTAT1));
+ if (aic7xxx_panic_on_abort)
+ aic7xxx_panic_abort(p, NULL);
}
else
{
@@ -4863,6 +5828,10 @@
* What we need to do then is to let the command timeout again so
* we get a reset since this abort just failed.
*/
+#ifdef AIC7XXX_VERBOSE_DEBUGGING
+ if (aic7xxx_verbose > 0xffff)
+ printk(INFO_LEAD "Selection Timeout.\n", p->host_no, CTL_OF_SCB(scb));
+#endif
if (p->flags & SCB_QUEUED_ABORT)
{
cmd->result = 0;
@@ -4875,9 +5844,9 @@
* are allowed to reselect in.
*/
aic_outb(p, 0, SCSISEQ);
- aic_outb(p, aic_inb(p, SIMODE1) & ~ENREQINIT, SIMODE1);
+ aic_outb(p, aic_inb(p, SIMODE1) & ~(ENREQINIT|ENBUSFREE), SIMODE1);
p->flags &= ~AHC_HANDLING_REQINITS;
- aic_outb(p, CLRSELTIMEO | CLRBUSFREE | CLRREQINIT, CLRSINT1);
+ aic_outb(p, CLRSELTIMEO | CLRBUSFREE, CLRSINT1);
aic_outb(p, CLRSCSIINT, CLRINT);
restart_sequencer(p);
unpause_sequencer(p, TRUE);
@@ -4942,7 +5911,7 @@
* A parity error has occurred during a data
* transfer phase. Flag it and continue.
*/
- printk(WARN_LEAD "Parity error during phase %s.\n",
+ printk(WARN_LEAD "Parity error during %s phase.\n",
p->host_no, CTL_OF_SCB(scb), phase);
/*
@@ -4960,6 +5929,17 @@
aic_outb(p, CLRSCSIINT, CLRINT);
unpause_sequencer(p, /* unpause_always */ TRUE);
}
+ else if ( (status & REQINIT) &&
+ (p->flags & AHC_HANDLING_REQINITS) )
+ {
+#ifdef AIC7XXX_VERBOSE_DEBUGGING
+ if (aic7xxx_verbose > 0xffff)
+ printk(INFO_LEAD "Handling REQINIT, SSTAT1=0x%x.\n", p->host_no,
+ CTL_OF_SCB(scb), aic_inb(p, SSTAT1));
+#endif
+ aic7xxx_handle_reqinit(p, scb);
+ return;
+ }
else
{
/*
@@ -4980,66 +5960,151 @@
}
}
-#ifdef CONFIG_PCI
-
-#define DPE 0x80
-#define SSE 0x40
-#define RMA 0x20
-#define RTA 0x10
-#define STA 0x08
-#define DPR 0x01
-
-/*+F*************************************************************************
- * Function:
- * aic7xxx_pci_intr
- *
- * Description:
- * Check the scsi card for PCI errors and clear the interrupt
- *
- * NOTE: If you don't have this function and a 2940 card encounters
- * a PCI error condition, the machine will end up locked as the
- * interrupt handler gets slammed with non-stop PCI error interrupts
- *-F*************************************************************************/
+#ifdef AIC7XXX_VERBOSE_DEBUGGING
static void
-aic7xxx_pci_intr(struct aic7xxx_host *p)
+aic7xxx_check_scbs(struct aic7xxx_host *p, char *buffer)
{
- unsigned char status1;
-
-#if LINUX_VERSION_CODE > KERNEL_VERSION(2,1,92)
- pci_read_config_byte(p->pdev, PCI_STATUS, &status1);
-#else
- pcibios_read_config_byte(p->pci_bus, p->pci_device_fn,
- PCI_STATUS, &status1);
-#endif
+ unsigned char saved_scbptr, free_scbh, dis_scbh, wait_scbh, temp;
+ int i, bogus, lost;
+ static unsigned char scb_status[AIC7XXX_MAXSCB];
+
+#define SCB_NO_LIST 0
+#define SCB_FREE_LIST 1
+#define SCB_WAITING_LIST 2
+#define SCB_DISCONNECTED_LIST 4
+#define SCB_CURRENTLY_ACTIVE 8
+
+ /*
+ * Note, these checks will fail on a regular basis once the machine moves
+ * beyond the bus scan phase. The problem is race conditions concerning
+ * the scbs and where they are linked in. When you have 30 or so commands
+ * outstanding on the bus, and run this twice with every interrupt, the
+ * chances get pretty good that you'll catch the sequencer with an SCB
+ * only partially linked in. Therefore, once we pass the scan phase
+ * of the bus, we really should disable this function.
+ */
+ bogus = FALSE;
+ memset(&scb_status[0], 0, sizeof(scb_status));
+ pause_sequencer(p);
+ saved_scbptr = aic_inb(p, SCBPTR);
+ if (saved_scbptr >= p->scb_data->maxhscbs)
+ {
+ printk("Bogus SCBPTR %d\n", saved_scbptr);
+ bogus = TRUE;
+ }
+ scb_status[saved_scbptr] = SCB_CURRENTLY_ACTIVE;
+ free_scbh = aic_inb(p, FREE_SCBH);
+ if ( (free_scbh != SCB_LIST_NULL) &&
+ (free_scbh >= p->scb_data->maxhscbs) )
+ {
+ printk("Bogus FREE_SCBH %d\n", free_scbh);
+ bogus = TRUE;
+ }
+ else
+ {
+ temp = free_scbh;
+ while( (temp != SCB_LIST_NULL) && (temp < p->scb_data->maxhscbs) )
+ {
+ if(scb_status[temp] & 0x07)
+ {
+ printk("HSCB %d on multiple lists, status 0x%02x", temp,
+ scb_status[temp] | SCB_FREE_LIST);
+ bogus = TRUE;
+ }
+ scb_status[temp] |= SCB_FREE_LIST;
+ aic_outb(p, temp, SCBPTR);
+ temp = aic_inb(p, SCB_NEXT);
+ }
+ }
- if ( (status1 & DPE) && (aic7xxx_verbose & VERBOSE_MINOR_ERROR) )
- printk(WARN_LEAD "Data Parity Error during PCI address or PCI write"
- "phase.\n", p->host_no, -1, -1, -1);
- if ( (status1 & SSE) && (aic7xxx_verbose & VERBOSE_MINOR_ERROR) )
- printk(WARN_LEAD "Signal System Error Detected\n", p->host_no,
- -1, -1, -1);
- if ( (status1 & RMA) && (aic7xxx_verbose & VERBOSE_MINOR_ERROR) )
- printk(WARN_LEAD "Received a PCI Master Abort\n", p->host_no,
- -1, -1, -1);
- if ( (status1 & RTA) && (aic7xxx_verbose & VERBOSE_MINOR_ERROR) )
- printk(WARN_LEAD "Received a PCI Target Abort\n", p->host_no,
- -1, -1, -1);
- if ( (status1 & STA) && (aic7xxx_verbose & VERBOSE_MINOR_ERROR) )
- printk(WARN_LEAD "Signaled a PCI Target Abort\n", p->host_no,
- -1, -1, -1);
- if ( (status1 & DPR) && (aic7xxx_verbose & VERBOSE_MINOR_ERROR) )
- printk(WARN_LEAD "Data Parity Error has been reported via PCI pin "
- "PERR#\n", p->host_no, -1, -1, -1);
+ dis_scbh = aic_inb(p, DISCONNECTED_SCBH);
+ if ( (dis_scbh != SCB_LIST_NULL) &&
+ (dis_scbh >= p->scb_data->maxhscbs) )
+ {
+ printk("Bogus DISCONNECTED_SCBH %d\n", dis_scbh);
+ bogus = TRUE;
+ }
+ else
+ {
+ temp = dis_scbh;
+ while( (temp != SCB_LIST_NULL) && (temp < p->scb_data->maxhscbs) )
+ {
+ if(scb_status[temp] & 0x07)
+ {
+ printk("HSCB %d on multiple lists, status 0x%02x", temp,
+ scb_status[temp] | SCB_DISCONNECTED_LIST);
+ bogus = TRUE;
+ }
+ scb_status[temp] |= SCB_DISCONNECTED_LIST;
+ aic_outb(p, temp, SCBPTR);
+ temp = aic_inb(p, SCB_NEXT);
+ }
+ }
-#if LINUX_VERSION_CODE > KERNEL_VERSION(2,1,92)
- pci_write_config_byte(p->pdev, PCI_STATUS, status1);
-#else
- pcibios_write_config_byte(p->pci_bus, p->pci_device_fn,
- PCI_STATUS, status1);
-#endif
- if (status1 & (DPR|RMA|RTA))
- aic_outb(p, CLRPARERR, CLRINT);
+ wait_scbh = aic_inb(p, WAITING_SCBH);
+ if ( (wait_scbh != SCB_LIST_NULL) &&
+ (wait_scbh >= p->scb_data->maxhscbs) )
+ {
+ printk("Bogus WAITING_SCBH %d\n", wait_scbh);
+ bogus = TRUE;
+ }
+ else
+ {
+ temp = wait_scbh;
+ while( (temp != SCB_LIST_NULL) && (temp < p->scb_data->maxhscbs) )
+ {
+ if(scb_status[temp] & 0x07)
+ {
+ printk("HSCB %d on multiple lists, status 0x%02x", temp,
+ scb_status[temp] | SCB_WAITING_LIST);
+ bogus = TRUE;
+ }
+ scb_status[temp] |= SCB_WAITING_LIST;
+ aic_outb(p, temp, SCBPTR);
+ temp = aic_inb(p, SCB_NEXT);
+ }
+ }
+ lost=0;
+ for(i=0; i < p->scb_data->maxhscbs; i++)
+ {
+ aic_outb(p, i, SCBPTR);
+ temp = aic_inb(p, SCB_NEXT);
+ if ( ((temp != SCB_LIST_NULL) &&
+ (temp >= p->scb_data->maxhscbs)) )
+ {
+ printk("HSCB %d bad, SCB_NEXT invalid(%d).\n", i, temp);
+ bogus = TRUE;
+ }
+ if ( temp == i )
+ {
+ printk("HSCB %d bad, SCB_NEXT points to self.\n", i);
+ bogus = TRUE;
+ }
+ temp = aic_inb(p, SCB_PREV);
+ if ((temp != SCB_LIST_NULL) &&
+ (temp >= p->scb_data->maxhscbs))
+ {
+ printk("HSCB %d bad, SCB_PREV invalid(%d).\n", i, temp);
+ bogus = TRUE;
+ }
+ if (scb_status[i] == 0)
+ lost++;
+ if (lost > 1)
+ {
+ printk("Too many lost scbs.\n");
+ bogus=TRUE;
+ }
+ }
+ aic_outb(p, saved_scbptr, SCBPTR);
+ unpause_sequencer(p, FALSE);
+ if (bogus)
+ {
+ printk("Bogus parameters found in card SCB array structures.\n");
+ printk("%s\n", buffer);
+ aic7xxx_panic_abort(p, NULL);
+ }
+ return;
}
#endif
@@ -5066,7 +6131,8 @@
if (!((intstat = aic_inb(p, INTSTAT)) & INT_PEND))
{
#ifdef CONFIG_PCI
- if ((p->type & AHC_AIC78x0) && (p->spurious_int > 500))
+ if ( (p->chip & AHC_PCI) && (p->spurious_int > 500) &&
+ !(p->flags & AHC_HANDLING_REQINITS) )
{
if ( aic_inb(p, ERROR) & PCIERRSTAT )
{
@@ -5074,7 +6140,7 @@
}
p->spurious_int = 0;
}
- else
+ else if ( !(p->flags & AHC_HANDLING_REQINITS) )
{
p->spurious_int++;
}
@@ -5089,6 +6155,12 @@
*/
p->isr_count++;
+#ifdef AIC7XXX_VERBOSE_DEBUGGING
+ if ( (p->isr_count < 16) && (aic7xxx_verbose > 0xffff) &&
+ (aic7xxx_panic_on_abort) && (p->flags & AHC_PAGESCBS) )
+ aic7xxx_check_scbs(p, "Bogus settings at start of interrupt.");
+#endif
+
/*
* Handle all the interrupt sources - especially for SCSI
* interrupts, we won't get a second chance at them.
@@ -5099,6 +6171,11 @@
Scsi_Cmnd *cmd;
unsigned char scb_index;
+#ifdef AIC7XXX_VERBOSE_DEBUGGING
+ if(aic7xxx_verbose > 0xffff)
+ printk(INFO_LEAD "Command Complete Int.\n", p->host_no, -1, -1, -1);
+#endif
+
/*
* Clear interrupt status before running the completion loop.
* This eliminates a race condition whereby a command could
@@ -5152,6 +6229,14 @@
SCB_QUEUED_ABORT);
unpause_sequencer(p, FALSE);
}
+ else if (scb->flags & SCB_ABORT)
+ {
+ /*
+ * We started to abort this, but it completed on us, let it
+ * through as successful
+ */
+ scb->flags &= ~(SCB_ABORT|SCB_RESET);
+ }
switch (status_byte(scb->hscb->target_status))
{
case QUEUE_FULL:
@@ -5192,16 +6277,33 @@
printk(KERN_ERR " %s\n", hard_error[i].errmesg);
}
}
- printk(KERN_ERR "(scsi%d) LINE=%d\n", p->host_no,
+ printk(KERN_ERR "(scsi%d) SEQADDR=0x%x\n", p->host_no,
(((aic_inb(p, SEQADDR1) << 8) & 0x100) | aic_inb(p, SEQADDR0)));
- aic7xxx_reset_channel(p, 0, TRUE);
- if ( p->type & AHC_TWIN )
+ if (aic7xxx_panic_on_abort)
+ aic7xxx_panic_abort(p, NULL);
+ if (errno & PCIERRSTAT)
+ aic7xxx_pci_intr(p);
+ if (errno & (SQPARERR | ILLOPCODE | ILLSADDR))
+ {
+ sti();
+ panic("aic7xxx: unrecoverable BRKADRINT.\n");
+ }
+ if (errno & ILLHADDR)
{
- aic7xxx_reset_channel(p, 1, TRUE);
- restart_sequencer(p);
+ printk(KERN_ERR "(scsi%d) BUG! Driver accessed chip without first "
+ "pausing controller!\n", p->host_no);
}
- aic7xxx_run_done_queue(p, FALSE);
- aic_outb(p, CLRBRKADRINT, CLRINT);
+#ifdef AIC7XXX_VERBOSE_DEBUGGING
+ if (errno & DPARERR)
+ {
+ if (aic_inb(p, DMAPARAMS) & DIRECTION)
+ printk("(scsi%d) while DMAing SCB from host to card.\n", p->host_no);
+ else
+ printk("(scsi%d) while DMAing SCB from card to host.\n", p->host_no);
+ }
+#endif
+ aic_outb(p, CLRPARERR | CLRBRKADRINT, CLRINT);
+ unpause_sequencer(p, FALSE);
}
if (intstat & SEQINT)
@@ -5213,6 +6315,13 @@
{
aic7xxx_handle_scsiint(p, intstat);
}
+
+#ifdef AIC7XXX_VERBOSE_DEBUGGING
+ if ( (p->isr_count < 16) && (aic7xxx_verbose > 0xffff) &&
+ (aic7xxx_panic_on_abort) && (p->flags & AHC_PAGESCBS) )
+ aic7xxx_check_scbs(p, "Bogus settings at end of interrupt.");
+#endif
+
}
/*+F*************************************************************************
@@ -5229,49 +6338,34 @@
{
unsigned long cpu_flags;
struct aic7xxx_host *p;
- static unsigned int re_entry_counter = 0;
p = (struct aic7xxx_host *)dev_id;
if(!p)
return;
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,1,95)
+ spin_lock_irqsave(&io_request_lock, cpu_flags);
if(test_and_set_bit(AHC_IN_ISR_BIT, &p->flags))
{
- if(re_entry_counter++ > 100000UL)
- {
- /*
- * Hmmm...we seem to be looping here. This usually means that our
- * interrupt routine got killed by a NULL pointer deref. Panic.
- */
- sti();
- panic("aic7xxx: The interrupt routine appears to have seg faulted.\n");
- }
return;
}
- re_entry_counter = 0;
- spin_lock_irqsave(&io_request_lock, cpu_flags);
- aic7xxx_isr(irq, dev_id, regs);
+ do
+ {
+ aic7xxx_isr(irq, dev_id, regs);
+ } while ( (aic_inb(p, INTSTAT) & INT_PEND) );
aic7xxx_done_cmds_complete(p);
aic7xxx_run_waiting_queues(p);
- spin_unlock_irqrestore(&io_request_lock, cpu_flags);
clear_bit(AHC_IN_ISR_BIT, &p->flags);
+ spin_unlock_irqrestore(&io_request_lock, cpu_flags);
#else
if(set_bit(AHC_IN_ISR_BIT, (int *)&p->flags))
{
- if(re_entry_counter++ > 100000UL)
- {
- /*
- * Hmmm...we seem to be looping here. This usually means that our
- * interrupt routine got killed by a NULL pointer deref. Panic.
- */
- sti();
- panic("aic7xxx: The interrupt routine appears to have seg faulted.\n");
- }
return;
}
- re_entry_counter = 0;
DRIVER_LOCK
- aic7xxx_isr(irq, dev_id, regs);
+ do
+ {
+ aic7xxx_isr(irq, dev_id, regs);
+ } while ( (aic_inb(p, INTSTAT) & INT_PEND) );
DRIVER_UNLOCK
aic7xxx_done_cmds_complete(p);
aic7xxx_run_waiting_queues(p);
@@ -5324,7 +6418,7 @@
if (!(p->discenable & target_mask))
{
- if (aic7xxx_verbose & VERBOSE_QUEUE)
+ if (aic7xxx_verbose & VERBOSE_NEGOTIATION2)
printk(INFO_LEAD "Disconnection disabled, unable to "
"enable tagged queueing.\n",
p->host_no, device->channel, device->id, device->lun);
@@ -5364,7 +6458,7 @@
}
if ((device->tagged_queue == 0) && tag_enabled)
{
- if (aic7xxx_verbose & VERBOSE_QUEUE)
+ if (aic7xxx_verbose & VERBOSE_NEGOTIATION2)
{
printk(INFO_LEAD "Enabled tagged queuing, queue depth %d.\n",
p->host_no, device->channel, device->id,
@@ -5418,7 +6512,7 @@
* to allocate some when memory is more or less exhausted and we need
* the SCB in order to perform a swap operation (possible deadlock)
*/
- if ( aic7xxx_allocate_scb(p, TRUE) == NULL )
+ if ( aic7xxx_allocate_scb(p) == 0 )
return;
}
}
@@ -5451,7 +6545,7 @@
* an unused function.
*-F*************************************************************************/
#if defined(__i386__) || defined(__alpha__)
-static ahc_type
+static int
aic7xxx_probe(int slot, int base, ahc_flag_type *flags)
{
int i;
@@ -5460,13 +6554,17 @@
static struct {
int n;
unsigned char signature[sizeof(buf)];
- ahc_type type;
+ ahc_chip type;
int bios_disabled;
} AIC7xxx[] = {
- { 4, { 0x04, 0x90, 0x77, 0x71 }, AHC_274, FALSE }, /* host adapter 274x */
- { 4, { 0x04, 0x90, 0x77, 0x70 }, AHC_AIC7770, FALSE }, /* mb 7770 */
- { 4, { 0x04, 0x90, 0x77, 0x56 }, AHC_284, FALSE }, /* 284x BIOS enabled */
- { 4, { 0x04, 0x90, 0x77, 0x57 }, AHC_284, TRUE } /* 284x BIOS disabled */
+ { 4, { 0x04, 0x90, 0x77, 0x70 },
+ AHC_AIC7770|AHC_EISA, FALSE }, /* mb 7770 */
+ { 4, { 0x04, 0x90, 0x77, 0x71 },
+ AHC_AIC7770|AHC_EISA, FALSE }, /* host adapter 274x */
+ { 4, { 0x04, 0x90, 0x77, 0x56 },
+ AHC_AIC7770|AHC_VL, FALSE }, /* 284x BIOS enabled */
+ { 4, { 0x04, 0x90, 0x77, 0x57 },
+ AHC_AIC7770|AHC_VL, TRUE } /* 284x BIOS disabled */
};
/*
@@ -5496,7 +6594,7 @@
{
*flags |= AHC_BIOS_ENABLED;
}
- return (AIC7xxx[i].type);
+ return (i);
}
printk("aic7xxx: <Adaptec 7770 SCSI Host Adapter> "
@@ -5504,7 +6602,7 @@
}
}
- return (AHC_NONE);
+ return (-1);
}
#endif /* (__i386__) || (__alpha__) */
@@ -5661,7 +6759,7 @@
* Description:
* Acquires access to the memory port on PCI controllers.
*-F*************************************************************************/
-static inline int
+static int
acquire_seeprom(struct aic7xxx_host *p)
{
int wait;
@@ -5695,7 +6793,7 @@
* Description:
* Releases access to the memory port on PCI controllers.
*-F*************************************************************************/
-static inline void
+static void
release_seeprom(struct aic7xxx_host *p)
{
aic_outb(p, 0, SEECTL);
@@ -5895,19 +6993,38 @@
* Description:
* Writes a value to the BRDCTL register.
*-F*************************************************************************/
-static inline void
+static void
write_brdctl(struct aic7xxx_host *p, unsigned char value)
{
unsigned char brdctl;
- brdctl = BRDCS | BRDSTB;
+ if ((p->chip & AHC_CHIPID_MASK) == AHC_AIC7895)
+ {
+ brdctl = BRDSTB;
+ if (p->flags & AHC_CHNLB)
+ brdctl |= BRDCS;
+ }
+ else if (p->features & AHC_ULTRA2)
+ brdctl = 0;
+ else
+ brdctl = BRDSTB | BRDCS;
aic_outb(p, brdctl, BRDCTL);
+ udelay(1);
brdctl |= value;
aic_outb(p, brdctl, BRDCTL);
- brdctl &= ~BRDSTB;
+ udelay(1);
+ if (p->features & AHC_ULTRA2)
+ brdctl |= BRDSTB_ULTRA2;
+ else
+ brdctl &= ~BRDSTB;
aic_outb(p, brdctl, BRDCTL);
- brdctl &= ~BRDCS;
+ udelay(1);
+ if (p->features & AHC_ULTRA2)
+ brdctl = 0;
+ else
+ brdctl &= ~BRDCS;
aic_outb(p, brdctl, BRDCTL);
+ udelay(1);
}
/*+F*************************************************************************
@@ -5917,11 +7034,27 @@
* Description:
* Reads the BRDCTL register.
*-F*************************************************************************/
-static inline unsigned char
+static unsigned char
read_brdctl(struct aic7xxx_host *p)
{
- aic_outb(p, BRDRW | BRDCS, BRDCTL);
- return (aic_inb(p, BRDCTL));
+ unsigned char brdctl, value;
+
+ if ((p->chip & AHC_CHIPID_MASK) == AHC_AIC7895)
+ {
+ brdctl = BRDRW;
+ if (p->flags & AHC_CHNLB)
+ brdctl |= BRDCS;
+ }
+ else if (p->features & AHC_ULTRA2)
+ brdctl = BRDRW_ULTRA2;
+ else
+ brdctl = BRDRW | BRDCS;
+ aic_outb(p, brdctl, BRDCTL);
+ udelay(1);
+ value = aic_inb(p, BRDCTL);
+ aic_outb(p, 0, BRDCTL);
+ udelay(1);
+ return (value);
}
/*+F*************************************************************************
@@ -5938,11 +7071,14 @@
unsigned char brdctl;
aic_outb(p, BRDRW | BRDCS, BRDCTL);
+ udelay(1);
aic_outb(p, 0, BRDCTL);
+ udelay(1);
brdctl = aic_inb(p, BRDCTL);
+ udelay(1);
*int_50 = !(brdctl & BRDDAT5);
*ext_present = !(brdctl & BRDDAT6);
- *eeprom = ( aic_inb(p, SPIOCAP) & EEPROM ) != 0;
+ *eeprom = (aic_inb(p, SPIOCAP) & EEPROM);
}
/*+F*************************************************************************
@@ -5985,12 +7121,37 @@
brdctl = read_brdctl(p);
*ext_present = !(brdctl & BRDDAT6);
- *eeprom = (brdctl & BRDDAT7);
+ *eeprom = !(brdctl & BRDDAT7);
/*
* We're done, the calling function will release the SEEPROM for us
*/
-
+}
+
+/*+F*************************************************************************
+ * Function:
+ * aic787x_ultra2_term_detect
+ *
+ * Description:
+ * Detect the termination settings present on ultra2 class controllers
+ *
+ * NOTE: This functions assumes the SEEPROM will have already been aquired
+ * prior to invocation of this function.
+ *-F*************************************************************************/
+static void
+aic7xxx_ultra2_term_detect(struct aic7xxx_host *p, int *enableSE_low,
+ int *enableSE_high, int *enableLVD_low,
+ int *enableLVD_high, int *eprom_present)
+{
+ unsigned char brdctl;
+
+ brdctl = read_brdctl(p);
+
+ *eprom_present = (brdctl & BRDDAT7);
+ *enableSE_high = (brdctl & BRDDAT6);
+ *enableSE_low = (brdctl & BRDDAT5);
+ *enableLVD_high = (brdctl & BRDDAT4);
+ *enableLVD_low = (brdctl & BRDDAT3);
}
/*+F*************************************************************************
@@ -6002,146 +7163,192 @@
* SEEPROMs available.
*-F*************************************************************************/
static void
-configure_termination(struct aic7xxx_host *p, unsigned char *sxfrctl1,
- unsigned short adapter_control, unsigned char max_targ)
+configure_termination(struct aic7xxx_host *p)
{
- int internal50_present;
+ int internal50_present = 0;
int internal68_present = 0;
int external_present = 0;
- int eprom_present;
- int high_on;
- int low_on;
+ int eprom_present = 0;
+ int enableSE_low = 0;
+ int enableSE_high = 0;
+ int enableLVD_low = 0;
+ int enableLVD_high = 0;
+ unsigned char brddat = 0;
+ unsigned char max_target = 0;
+ unsigned char sxfrctl1 = aic_inb(p, SXFRCTL1);
if (acquire_seeprom(p))
{
- if (adapter_control & CFAUTOTERM)
- {
- printk(KERN_INFO "aic7xxx: Warning - detected auto-termination on "
- "controller:\n");
- printk(KERN_INFO "aic7xxx: <%s> at ", board_names[p->board_name_index]);
- switch(p->type & 0x1ff1)
- {
- case AHC_AIC7770:
- case AHC_274:
- printk("EISA slot %d\n", p->pci_device_fn);
- break;
- case AHC_284:
- printk("VLB slot %d\n", p->pci_device_fn);
- break;
- default:
- printk("PCI %d/%d\n", PCI_SLOT(p->pci_device_fn),
- PCI_FUNC(p->pci_device_fn));
- break;
+ if (p->features & (AHC_WIDE|AHC_TWIN))
+ max_target = 16;
+ else
+ max_target = 8;
+ aic_outb(p, SEEMS | SEECS, SEECTL);
+ sxfrctl1 &= ~STPWEN;
+ if ( (p->adapter_control & CFAUTOTERM) ||
+ (p->features & AHC_ULTRA2) )
+ {
+ if ( (p->adapter_control & CFAUTOTERM) && !(p->features & AHC_ULTRA2) )
+ {
+ printk(KERN_INFO "(scsi%d) Warning - detected auto-termination\n",
+ p->host_no);
+ printk(KERN_INFO "(scsi%d) Please verify driver detected settings are "
+ "correct.\n", p->host_no);
+ printk(KERN_INFO "(scsi%d) If not, then please properly set the device "
+ "termination\n", p->host_no);
+ printk(KERN_INFO "(scsi%d) in the Adaptec SCSI BIOS by hitting CTRL-A "
+ "when prompted\n", p->host_no);
+ printk(KERN_INFO "(scsi%d) during machine bootup.\n", p->host_no);
}
- printk(KERN_INFO "aic7xxx: Please verify driver detected settings are "
- "correct.\n");
- printk(KERN_INFO "aic7xxx: If not, then please properly set the device "
- "termination\n");
- printk(KERN_INFO "aic7xxx: in the Adaptec SCSI BIOS by hitting CTRL-A "
- "when prompted\n");
- printk(KERN_INFO "aic7xxx: during machine bootup.\n");
/* Configure auto termination. */
- aic_outb(p, SEECS | SEEMS, SEECTL);
- if ( (p->type & AHC_AIC7860) == AHC_AIC7860 )
+ if (p->features & AHC_ULTRA2)
{
- aic785x_cable_detect(p, &internal50_present, &external_present,
- &eprom_present);
+ if (aic7xxx_override_term == -1)
+ aic7xxx_ultra2_term_detect(p, &enableSE_low, &enableSE_high,
+ &enableLVD_low, &enableLVD_high,
+ &eprom_present);
+ if (!(p->adapter_control & CFSEAUTOTERM))
+ {
+ enableSE_low = (p->adapter_control & CFSTERM);
+ enableSE_high = (p->adapter_control & CFWSTERM);
+ }
+ if (!(p->adapter_control & CFAUTOTERM))
+ {
+ enableLVD_low = enableLVD_high = (p->adapter_control & CFLVDSTERM);
+ }
+ internal50_present = 0;
+ internal68_present = 1;
+ external_present = 1;
}
- else
+ else if ( (p->chip & AHC_CHIPID_MASK) >= AHC_AIC7870 )
{
aic787x_cable_detect(p, &internal50_present, &internal68_present,
&external_present, &eprom_present);
}
- if (max_targ > 8)
- {
- printk(KERN_INFO "aic7xxx: Cables present (Int-50 %s, Int-68 %s, "
- "Ext-68 %s)\n",
- internal50_present ? "YES" : "NO",
- internal68_present ? "YES" : "NO",
- external_present ? "YES" : "NO");
- }
else
{
- printk(KERN_INFO "aic7xxx: Cables present (Int-50 %s, Ext-50 %s)\n",
- internal50_present ? "YES" : "NO",
- external_present ? "YES" : "NO");
+ aic785x_cable_detect(p, &internal50_present, &external_present,
+ &eprom_present);
+ }
+
+ if (max_target <= 8)
internal68_present = 0;
+
+ if ( !(p->features & AHC_ULTRA2) )
+ {
+ if (max_target > 8)
+ {
+ printk(KERN_INFO "(scsi%d) Cables present (Int-50 %s, Int-68 %s, "
+ "Ext-68 %s)\n", p->host_no,
+ internal50_present ? "YES" : "NO",
+ internal68_present ? "YES" : "NO",
+ external_present ? "YES" : "NO");
+ }
+ else
+ {
+ printk(KERN_INFO "(scsi%d) Cables present (Int-50 %s, Ext-50 %s)\n",
+ p->host_no,
+ internal50_present ? "YES" : "NO",
+ external_present ? "YES" : "NO");
+ }
}
if (aic7xxx_verbose & VERBOSE_PROBE2)
- printk(KERN_INFO "aic7xxx: EEPROM %s present.\n",
+ printk(KERN_INFO "(scsi%d) EEPROM %s present.\n", p->host_no,
eprom_present ? "is" : "is not");
/*
* Now set the termination based on what we found. BRDDAT6
* controls wide termination enable.
+ * Flash Enable = BRDDAT7
+ * SE High Term Enable = BRDDAT6
+ * SE Low Term Enable = BRDDAT5 (7890)
+ * LVD High Term Enable = BRDDAT4 (7890)
*/
- high_on = FALSE;
- low_on = FALSE;
- if ((max_targ > 8) &&
- ((external_present == 0) || (internal68_present == 0)))
+ if ( !(p->features & AHC_ULTRA2) &&
+ (internal50_present && internal68_present && external_present) )
{
- high_on = TRUE;
+ printk(KERN_INFO "(scsi%d) Illegal cable configuration!! Only two\n",
+ p->host_no);
+ printk(KERN_INFO "(scsi%d) connectors on the SCSI controller may be "
+ "in use at a time!\n", p->host_no);
+ /*
+ * Force termination (low and high byte) on. This is safer than
+ * leaving it completely off, especially since this message comes
+ * most often from motherboard controllers that don't even have 3
+ * connectors, but instead are failing the cable detection.
+ */
+ internal50_present = external_present = 0;
+ enableSE_high = enableSE_low = 1;
}
- if ( ( (internal50_present ? 1 : 0) +
- (internal68_present ? 1 : 0) +
- (external_present ? 1 : 0) ) <= 1)
+ if ((max_target > 8) &&
+ ((external_present == 0) || (internal68_present == 0) ||
+ (enableSE_high != 0)))
{
- low_on = TRUE;
+ brddat |= BRDDAT6;
+ p->flags |= AHC_TERM_ENB_SE_HIGH;
+ if (aic7xxx_verbose & VERBOSE_PROBE2)
+ printk(KERN_INFO "(scsi%d) SE High byte termination Enabled\n",
+ p->host_no);
}
-
- if (internal50_present && internal68_present && external_present)
+
+ if ( (((internal50_present ? 1 : 0) +
+ (internal68_present ? 1 : 0) +
+ (external_present ? 1 : 0)) <= 1) ||
+ (enableSE_low != 0) )
{
- printk(KERN_INFO "aic7xxx: Illegal cable configuration!! Only two\n");
- printk(KERN_INFO "aic7xxx: connectors on the SCSI controller may be "
- "in use at a time!\n");
+ if (p->features & AHC_ULTRA2)
+ brddat |= BRDDAT5;
+ else
+ sxfrctl1 |= STPWEN;
+ p->flags |= AHC_TERM_ENB_SE_LOW;
+ if (aic7xxx_verbose & VERBOSE_PROBE2)
+ printk(KERN_INFO "(scsi%d) SE Low byte termination Enabled\n",
+ p->host_no);
}
- if (high_on == TRUE)
- write_brdctl(p, BRDDAT6);
- else
- write_brdctl(p, 0);
-
- if (low_on == TRUE)
- *sxfrctl1 |= STPWEN;
-
- if (max_targ > 8)
+ if (enableLVD_low != 0)
{
- printk(KERN_INFO "aic7xxx: Termination (Low %s, High %s)\n",
- low_on ? "ON" : "OFF", high_on ? "ON" : "OFF");
+ sxfrctl1 |= STPWEN;
+ p->flags |= AHC_TERM_ENB_LVD;
+ if (aic7xxx_verbose & VERBOSE_PROBE2)
+ printk(KERN_INFO "(scsi%d) LVD Low byte termination Enabled\n",
+ p->host_no);
}
- else
+
+ if (enableLVD_high != 0)
{
- printk(KERN_INFO "aic7xxx: Termination %s\n",
- low_on ? "Enabled" : "Disabled");
+ brddat |= BRDDAT4;
+ if (aic7xxx_verbose & VERBOSE_PROBE2)
+ printk(KERN_INFO "(scsi%d) LVD High byte termination Enabled\n",
+ p->host_no);
}
}
else
{
- if (adapter_control & CFSTERM)
- *sxfrctl1 |= STPWEN;
-
- aic_outb(p, SEEMS | SEECS, SEECTL);
- /*
- * Configure high byte termination.
- */
- if (adapter_control & CFWSTERM)
- {
- write_brdctl(p, BRDDAT6);
- }
- else
+ if (p->adapter_control & CFSTERM)
{
- write_brdctl(p, 0);
+ if (p->features & AHC_ULTRA2)
+ brddat |= BRDDAT5;
+ else
+ sxfrctl1 |= STPWEN;
+ if (aic7xxx_verbose & VERBOSE_PROBE2)
+ printk(KERN_INFO "(scsi%d) SE Low byte termination Enabled\n",
+ p->host_no);
}
- if (aic7xxx_verbose & VERBOSE_PROBE2)
+
+ if (p->adapter_control & CFWSTERM)
{
- printk(KERN_INFO "aic7xxx: Termination (Low %s, High %s)\n",
- (adapter_control & CFSTERM) ? "ON" : "OFF",
- (adapter_control & CFWSTERM) ? "ON" : "OFF");
+ brddat |= BRDDAT6;
+ if (aic7xxx_verbose & VERBOSE_PROBE2)
+ printk(KERN_INFO "(scsi%d) SE High byte termination Enabled\n",
+ p->host_no);
}
}
+ write_brdctl(p, brddat);
release_seeprom(p);
+ aic_outb(p, sxfrctl1, SXFRCTL1);
}
}
@@ -6183,7 +7390,12 @@
aic_outb(p, i, SCBPTR);
aic_outb(p, 0, SCB_CONTROL); /* Clear the control byte. */
aic_outb(p, i + 1, SCB_NEXT); /* Set the next pointer. */
+ aic_outb(p, i - 1, SCB_PREV); /* Set the prev pointer. */
aic_outb(p, SCB_LIST_NULL, SCB_TAG); /* Make the tag invalid. */
+ aic_outb(p, SCB_LIST_NULL, SCB_BUSYTARGETS); /* no busy untagged */
+ aic_outb(p, SCB_LIST_NULL, SCB_BUSYTARGETS+1);/* targets active yet */
+ aic_outb(p, SCB_LIST_NULL, SCB_BUSYTARGETS+2);
+ aic_outb(p, SCB_LIST_NULL, SCB_BUSYTARGETS+3);
}
/* Make sure the last SCB terminates the free list. */
@@ -6195,6 +7407,11 @@
aic_outb(p, 0, SCB_CONTROL);
p->scb_data->maxhscbs = i;
+ /*
+ * Use direct indexing instead for speed
+ */
+ if ( i == AIC7XXX_MAXSCB )
+ p->flags &= ~AHC_PAGESCBS;
}
}
@@ -6213,9 +7430,7 @@
int i, result;
int max_targets;
int found = 1;
- unsigned char target_settings;
- unsigned char term, scsi_conf, sxfrctl1;
- unsigned short ultraenable = 0;
+ unsigned char term, scsi_conf;
struct Scsi_Host *host;
/*
@@ -6236,11 +7451,11 @@
host->n_io_port = 0xFF;
host->base = (unsigned char *) p->mbase;
host->irq = p->irq;
- if (p->type & AHC_WIDE)
+ if (p->features & AHC_WIDE)
{
host->max_id = 16;
}
- if (p->type & AHC_TWIN)
+ if (p->features & AHC_TWIN)
{
host->max_channel = 1;
}
@@ -6248,6 +7463,7 @@
p->host = host;
p->last_reset = 0;
p->host_no = host->host_no;
+ host->unique_id = p->instance;
p->isr_count = 0;
p->next = NULL;
p->completeq.head = NULL;
@@ -6270,7 +7486,7 @@
for (i = 0; i < MAX_TARGETS; i++)
{
p->dev_commands_sent[i] = 0;
- p->dev_flags[i] = DEVICE_PRINT_WDTR | DEVICE_PRINT_SDTR;
+ p->dev_flags[i] = 0;
p->dev_active_cmds[i] = 0;
p->dev_last_reset[i] = 0;
p->dev_last_queue_full[i] = 0;
@@ -6283,19 +7499,16 @@
p->dev_timer[i].expires = 0;
p->dev_timer[i].data = (unsigned long)p;
p->dev_timer[i].function = (void *)aic7xxx_timer;
- p->syncinfo[i].period = 0;
- p->syncinfo[i].offset = 0;
}
printk(KERN_INFO "(scsi%d) <%s> found at ", p->host_no,
board_names[p->board_name_index]);
- switch(p->type & 0x1ff1)
+ switch(p->chip)
{
- case AHC_AIC7770:
- case AHC_274:
+ case (AHC_AIC7770|AHC_EISA):
printk("EISA slot %d\n", p->pci_device_fn);
break;
- case AHC_284:
+ case (AHC_AIC7770|AHC_VL):
printk("VLB slot %d\n", p->pci_device_fn);
break;
default:
@@ -6303,7 +7516,7 @@
PCI_FUNC(p->pci_device_fn));
break;
}
- if (p->type & AHC_TWIN)
+ if (p->features & AHC_TWIN)
{
printk(KERN_INFO "(scsi%d) Twin Channel, A SCSI ID %d, B SCSI ID %d, ",
p->host_no, p->scsi_id, p->scsi_id_b);
@@ -6314,7 +7527,7 @@
channel = "";
- if ((p->type & AHC_39x) != 0)
+ if ((p->flags & AHC_MULTI_CHANNEL) != 0)
{
channel = " A";
@@ -6323,7 +7536,7 @@
channel = (p->flags & AHC_CHNLB) ? " B" : " C";
}
}
- if (p->type & AHC_WIDE)
+ if (p->features & AHC_WIDE)
{
printk(KERN_INFO "(scsi%d) Wide ", p->host_no);
}
@@ -6340,129 +7553,159 @@
*/
detect_maxscb(p);
printk("%d/%d SCBs\n", p->scb_data->maxhscbs, p->scb_data->maxscbs);
- printk(KERN_INFO "(scsi%d) BIOS %sabled, IO Port 0x%lx, IRQ %d\n",
- p->host_no, (p->flags & AHC_BIOS_ENABLED) ? "en" : "dis",
- p->base, p->irq);
- printk(KERN_INFO "(scsi%d) IO Memory at 0x%lx, MMAP Memory at 0x%lx\n",
- p->host_no, p->mbase, (unsigned long)p->maddr);
-
-
+ if (aic7xxx_verbose & VERBOSE_PROBE2)
+ {
+ printk(KERN_INFO "(scsi%d) BIOS %sabled, IO Port 0x%lx, IRQ %d\n",
+ p->host_no, (p->flags & AHC_BIOS_ENABLED) ? "en" : "dis",
+ p->base, p->irq);
+ printk(KERN_INFO "(scsi%d) IO Memory at 0x%lx, MMAP Memory at 0x%lx\n",
+ p->host_no, p->mbase, (unsigned long)p->maddr);
+ }
/*
- * Register IRQ with the kernel. Only allow sharing IRQs with
- * PCI devices.
+ * Now that we know our instance number, we can set the flags we need to
+ * force termination if need be.
*/
- if ((p->type & AHC_AIC7770) == AHC_AIC7770)
- {
- result = (request_irq(p->irq, do_aic7xxx_isr, 0, "aic7xxx", p));
- }
- else
+ if (aic7xxx_stpwlev != -1)
{
- result = (request_irq(p->irq, do_aic7xxx_isr, SA_SHIRQ,
- "aic7xxx", p));
- if (result < 0)
+ /*
+ * This option only applies to PCI controllers.
+ */
+ if ( (p->chip & ~AHC_CHIPID_MASK) == AHC_PCI)
{
- result = (request_irq(p->irq, do_aic7xxx_isr, SA_INTERRUPT | SA_SHIRQ,
- "aic7xxx", p));
+ unsigned char devconfig;
+
+#if LINUX_KERNEL_VERSION > KERNEL_VERSION(2,1,92)
+ pci_read_config_byte(p->pdev, DEVCONFIG, &devconfig);
+#else
+ pcibios_read_config_byte(p->pci_bus, p->pci_device_fn,
+ DEVCONFIG, &devconfig);
+#endif
+ if ( (aic7xxx_stpwlev >> p->instance) & 0x01 )
+ {
+ devconfig |= 0x02;
+ if (aic7xxx_verbose & VERBOSE_PROBE2)
+ printk("(scsi%d) Force setting STPWLEV bit\n", p->host_no);
+ }
+ else
+ {
+ devconfig &= ~0x02;
+ if (aic7xxx_verbose & VERBOSE_PROBE2)
+ printk("(scsi%d) Force clearing STPWLEV bit\n", p->host_no);
+ }
+#if LINUX_KERNEL_VERSION > KERNEL_VERSION(2,1,92)
+ pci_write_config_byte(p->pdev, DEVCONFIG, devconfig);
+#else
+ pcibios_write_config_byte(p->pci_bus, p->pci_device_fn,
+ DEVCONFIG, devconfig);
+#endif
}
}
- if (result < 0)
- {
- printk(KERN_WARNING "(scsi%d) Couldn't register IRQ %d, ignoring.\n",
- p->host_no, p->irq);
- return (0);
- }
/*
- * Set the SCSI Id, SXFRCTL0, SXFRCTL1, and SIMODE1, for both channels
+ * That took care of devconfig and stpwlev, now for the actual termination
+ * settings.
*/
- if (p->type & AHC_TWIN)
+ if (aic7xxx_override_term != -1)
{
/*
- * The controller is gated to channel B after a chip reset; set
- * bus B values first.
+ * Again, this only applies to PCI controllers. We don't have problems
+ * with the termination on 274x controllers to the best of my knowledge.
*/
- term = ((p->flags & AHC_TERM_ENB_B) != 0) ? STPWEN : 0;
- aic_outb(p, p->scsi_id_b, SCSIID);
- scsi_conf = aic_inb(p, SCSICONF + 1);
- sxfrctl1 = aic_inb(p, SXFRCTL1);
- aic_outb(p, (scsi_conf & (ENSPCHK | STIMESEL)) | term |
- ENSTIMER | ACTNEGEN, SXFRCTL1);
- aic_outb(p, ENSELTIMO | ENSCSIRST | ENSCSIPERR, SIMODE1);
- if (p->type & AHC_ULTRA)
+ if ( (p->chip & ~AHC_CHIPID_MASK) == AHC_PCI)
{
- aic_outb(p, DFON | SPIOEN | FAST20, SXFRCTL0);
- }
- else
- {
- aic_outb(p, DFON | SPIOEN, SXFRCTL0);
+ unsigned char term_override;
+
+ term_override = ( (aic7xxx_override_term >> (p->instance * 4)) & 0x0f);
+ p->adapter_control &=
+ ~(CFSTERM|CFWSTERM|CFLVDSTERM|CFAUTOTERM|CFSEAUTOTERM);
+ if ( (p->features & AHC_ULTRA2) && (term_override & 0x0c) )
+ {
+ p->adapter_control |= CFLVDSTERM;
+ }
+ if (term_override & 0x02)
+ {
+ p->adapter_control |= CFWSTERM;
+ }
+ if (term_override & 0x01)
+ {
+ p->adapter_control |= CFSTERM;
+ }
}
- if ( (p->type & AHC_AIC7770) == AHC_AIC7770 )
+ }
+
+ if ( (p->flags & AHC_SEEPROM_FOUND) || (aic7xxx_override_term != -1) )
+ {
+ if (p->features & AHC_SPIOCAP)
{
- scsi_conf &= ~0x07;
- scsi_conf |= p->scsi_id_b;
- aic_outb(p, scsi_conf | (term) ? TERM_ENB : 0, SCSICONF + 1);
+ if ( aic_inb(p, SPIOCAP) & SSPIOCPS )
+ /*
+ * Update the settings in sxfrctl1 to match the termination
+ * settings.
+ */
+ configure_termination(p);
}
- if ( (scsi_conf & RESET_SCSI) && !(aic7xxx_no_reset) )
+ else if ((p->chip & AHC_CHIPID_MASK) >= AHC_AIC7870)
{
- /* Reset SCSI bus B. */
- if (aic7xxx_verbose & VERBOSE_PROBE)
- printk(KERN_INFO "(scsi%d) Resetting channel B\n", p->host_no);
-
- aic7xxx_reset_current_bus(p);
+ configure_termination(p);
}
-
- /* Select channel A */
- aic_outb(p, SELNARROW, SBLKCTL);
}
- term = ((p->flags & AHC_TERM_ENB_A) != 0) ? STPWEN : 0;
- aic_outb(p, p->scsi_id, SCSIID);
- scsi_conf = aic_inb(p, SCSICONF);
- sxfrctl1 = aic_inb(p, SXFRCTL1);
- aic_outb(p, (scsi_conf & (ENSPCHK | STIMESEL)) | term |
- ENSTIMER | ACTNEGEN, SXFRCTL1);
- aic_outb(p, ENSELTIMO | ENSCSIRST | ENSCSIPERR, SIMODE1);
- if (p->type & AHC_ULTRA)
- {
- aic_outb(p, DFON | SPIOEN | FAST20, SXFRCTL0);
- }
- else
- {
- aic_outb(p, DFON | SPIOEN, SXFRCTL0);
- }
- if ( (p->type & AHC_AIC7770) == AHC_AIC7770 )
+ /*
+ * Load the sequencer program, then re-enable the board -
+ * resetting the AIC-7770 disables it, leaving the lights
+ * on with nobody home.
+ */
+ aic7xxx_loadseq(p);
+
+ if ( (p->chip & AHC_CHIPID_MASK) == AHC_AIC7770 )
{
- scsi_conf &= ~0x07;
- scsi_conf |= p->scsi_id;
- aic_outb(p, scsi_conf | (term) ? TERM_ENB : 0, SCSICONF);
+ aic_outb(p, ENABLE, BCTL); /* Enable the boards BUS drivers. */
}
+ aic_outb(p, aic_inb(p, SBLKCTL) & ~AUTOFLUSHDIS, SBLKCTL);
+ /*
+ * Clear out any possible pending interrupts.
+ */
+ aic7xxx_clear_intstat(p);
- if ( (scsi_conf & RESET_SCSI) && !(aic7xxx_no_reset) )
+ /*
+ * Set the SCSI Id, SXFRCTL0, SXFRCTL1, and SIMODE1, for both channels
+ */
+ if (p->features & AHC_TWIN)
{
- /* Reset SCSI bus A. */
- if (aic7xxx_verbose & VERBOSE_PROBE)
- { /* In case we are a 3940, 3985, or 7895, print the right channel */
- char *channel = "";
- if (p->flags & AHC_MULTI_CHANNEL)
- {
- channel = " A";
- if (p->flags & (AHC_CHNLB|AHC_CHNLC))
- channel = (p->flags & AHC_CHNLB) ? " B" : " C";
- }
- printk(KERN_INFO "(scsi%d) Resetting channel%s\n", p->host_no, channel);
- }
+ /* Select channel B */
+ aic_outb(p, aic_inb(p, SBLKCTL) | SELBUSB, SBLKCTL);
- aic7xxx_reset_current_bus(p);
+ term = ((p->flags & AHC_TERM_ENB_B) != 0) ? STPWEN : 0;
+ aic_outb(p, p->scsi_id_b, SCSIID);
+ scsi_conf = aic_inb(p, SCSICONF + 1);
+ aic_outb(p, DFON | SPIOEN, SXFRCTL0);
+ aic_outb(p, (scsi_conf & ENSPCHK) | term |
+ ENSTIMER | ACTNEGEN, SXFRCTL1);
+ aic_outb(p, 0, SIMODE0);
+ aic_outb(p, ENSELTIMO | ENSCSIRST | ENSCSIPERR, SIMODE1);
+ aic_outb(p, 0, SCSIRATE);
- /*
- * Delay for the reset delay.
- */
- if (!reset_delay)
- aic7xxx_delay(AIC7XXX_RESET_DELAY);
+ /* Select channel A */
+ aic_outb(p, aic_inb(p, SBLKCTL) & ~SELBUSB, SBLKCTL);
}
+ term = ((p->flags & AHC_TERM_ENB_SE_LOW) != 0) ? STPWEN : 0;
+ if (p->features & AHC_ULTRA2)
+ aic_outb(p, p->scsi_id, SCSIID_ULTRA2);
+ else
+ aic_outb(p, p->scsi_id, SCSIID);
+ scsi_conf = aic_inb(p, SCSICONF);
+ aic_outb(p, DFON | SPIOEN, SXFRCTL0);
+ aic_outb(p, (scsi_conf & ENSPCHK) | term |
+ ENSTIMER | ACTNEGEN, SXFRCTL1);
+ aic_outb(p, 0, SIMODE0);
+ aic_outb(p, ENSELTIMO | ENSCSIRST | ENSCSIPERR, SIMODE1);
+ aic_outb(p, 0, SCSIRATE);
+ if ( p->features & AHC_ULTRA2)
+ aic_outb(p, 0, SCSIOFFSET);
+
/*
* Look at the information that board initialization or the board
* BIOS has left us. In the lower four bits of each target's
@@ -6471,14 +7714,7 @@
* BIOS has decided to disable synchronous negotiation to that
* target so we don't activate the needsdtr flag.
*/
- p->needsdtr_copy = 0x0;
- p->sdtr_pending = 0x0;
- p->needwdtr_copy = 0x0;
- p->wdtr_pending = 0x0;
- p->tagenable = 0x0;
- p->ultraenb = 0x0;
- p->discenable = 0xffff;
- if ((p->type & (AHC_TWIN|AHC_WIDE)) == 0)
+ if ((p->features & (AHC_TWIN|AHC_WIDE)) == 0)
{
max_targets = 8;
}
@@ -6487,110 +7723,31 @@
max_targets = 16;
}
- /*
- * Grab the disconnection disable table and invert it for our needs
- */
- if (p->flags & AHC_USEDEFAULTS)
- {
- printk(KERN_INFO "(scsi%d) Host adapter BIOS disabled. Using default SCSI "
- "device parameters.\n", p->host_no);
- if (p->type & AHC_ULTRA)
- p->ultraenb = 0xffff;
- p->flags |= AHC_EXTEND_TRANS_A | AHC_EXTEND_TRANS_B;
- }
- else
+ if (!(aic7xxx_no_reset))
{
- p->discenable = ~((aic_inb(p, DISC_DSB + 1) << 8) |
- aic_inb(p, DISC_DSB));
- if (p->type & AHC_ULTRA)
- p->ultraenb = (aic_inb(p, ULTRA_ENB + 1) << 8) |
- aic_inb(p, ULTRA_ENB);
- }
-
- for (i = 0; i < max_targets; i++)
- {
- if (p->flags & AHC_USEDEFAULTS)
- {
- target_settings = 0; /* 10 or 20 MHz depending on Ultra enable */
- p->needsdtr_copy |= (0x01 << i);
- p->needwdtr_copy |= (0x01 << i);
- if (p->type & AHC_ULTRA)
- ultraenable |= (0x01 << i);
- }
- else
- {
- target_settings = aic_inb(p, TARG_SCRATCH + i);
- if (target_settings & 0x0F)
- {
- p->needsdtr_copy |= (0x01 << i);
- /*
- * Default to asynchronous transfers (0 offset)
- */
- target_settings &= 0xF0;
- }
- if (target_settings & 0x80)
- {
- p->needwdtr_copy |= (0x01 << i);
- /*
- * Clear the wide flag. When wide negotiation is successful,
- * we'll enable it.
- */
- target_settings &= 0x7F;
- }
- }
-
/*
- * If we reset the bus, then clear the transfer ssettings, else leave
+ * If we reset the bus, then clear the transfer settings, else leave
* them be
*/
- if ( (scsi_conf & RESET_SCSI) && !(aic7xxx_no_reset) )
- aic_outb(p, target_settings, TARG_SCRATCH + i);
- if (p->needsdtr_copy & (0x01 << i))
+ for (i = 0; i < max_targets; i++)
{
- short sxfr, j;
-
- sxfr = target_settings & SXFR;
- if ((p->ultraenb & (1 << i)) != 0)
+ aic_outb(p, 0, TARG_SCSIRATE + i);
+ if (p->features & AHC_ULTRA2)
{
- /* Want an ultra speed in the table */
- sxfr |= 0x100;
+ aic_outb(p, 0, TARG_OFFSET + i);
}
- for (j = 0; j < NUMBER(aic7xxx_syncrates); j++)
- {
- if (sxfr == aic7xxx_syncrates[j].rate)
- break;
- }
- p->syncinfo[i].period = aic7xxx_syncrates[j].period;
- p->syncinfo[i].offset =
- (p->type & AHC_WIDE) ? MAX_OFFSET_16BIT : MAX_OFFSET_8BIT;
+ p->transinfo[i].cur_offset = 0;
+ p->transinfo[i].cur_period = 0;
+ p->transinfo[i].cur_width = MSG_EXT_WDTR_BUS_8_BIT;
}
- else
- {
- p->syncinfo[i].period = 0;
- p->syncinfo[i].offset = 0;
- }
- }
- /*
- * If we are not wide, forget WDTR. This makes the driver
- * work on some cards that don't leave these fields cleared
- * when BIOS is not installed.
- */
- if ( !(p->type & AHC_WIDE))
- {
- p->needwdtr_copy = 0;
- }
- p->needsdtr = p->needsdtr_copy;
- p->needwdtr = p->needwdtr_copy;
-
- /*
- * If we reset the bus, then clear the transfer ssettings, else leave
- * them be
- */
- if ( (scsi_conf & RESET_SCSI) && !(aic7xxx_no_reset) )
- {
+ /*
+ * If we reset the bus, then clear the transfer settings, else leave
+ * them be.
+ */
aic_outb(p, 0, ULTRA_ENB);
aic_outb(p, 0, ULTRA_ENB + 1);
+ p->ultraenb = 0;
}
/*
@@ -6600,21 +7757,35 @@
* routine should only allocate contiguous memory, but note that
* this could be a problem if kmalloc() is changed.
*/
- if (p->scb_data->hscbs == NULL)
{
size_t array_size;
unsigned int hscb_physaddr;
+ unsigned long temp;
array_size = p->scb_data->maxscbs * sizeof(struct aic7xxx_hwscb);
- p->scb_data->hscbs = kmalloc(array_size, GFP_ATOMIC);
+ if (p->scb_data->hscbs == NULL)
+ {
+ /*
+ * A little padding so we can align thing the way we want
+ */
+ p->scb_data->hscbs = kmalloc(array_size + 0x1f, GFP_ATOMIC);
+ }
if (p->scb_data->hscbs == NULL)
{
printk("(scsi%d) Unable to allocate hardware SCB array; "
"failing detection.\n", p->host_no);
- release_region(p->base, MAXREG - MINREG);
- free_irq(p->irq, p);
+ p->irq = 0;
return(0);
}
+ /*
+ * Save the actual kmalloc buffer pointer off, then align our
+ * buffer to a 32 byte boundary
+ */
+ p->scb_data->hscb_kmalloc_ptr = p->scb_data->hscbs;
+ temp = (unsigned long)p->scb_data->hscbs;
+ temp += 0x1f;
+ temp &= ~0x1f;
+ p->scb_data->hscbs = (struct aic7xxx_hwscb *)temp;
/* At least the control byte of each SCB needs to be 0. */
memset(p->scb_data->hscbs, 0, array_size);
@@ -6631,12 +7802,19 @@
aic_outb(p, (hscb_physaddr >> 8) & 0xFF, SCBID_ADDR + 1);
aic_outb(p, (hscb_physaddr >> 16) & 0xFF, SCBID_ADDR + 2);
aic_outb(p, (hscb_physaddr >> 24) & 0xFF, SCBID_ADDR + 3);
+ }
- /* The Q-FIFOs we just set up are all empty */
- aic_outb(p, 0, QINPOS);
- aic_outb(p, 0, KERNEL_QINPOS);
- aic_outb(p, 0, QOUTPOS);
-
+ /* The Q-FIFOs we just set up are all empty */
+ aic_outb(p, 0, QINPOS);
+ aic_outb(p, 0, KERNEL_QINPOS);
+ aic_outb(p, 0, QOUTPOS);
+
+ if(p->features & AHC_QUEUE_REGS)
+ {
+ aic_outb(p, SCB_QSIZE_256, QOFF_CTLSTA);
+ aic_outb(p, 0, SDSCB_QOFF);
+ aic_outb(p, 0, SNSCB_QOFF);
+ aic_outb(p, 0, HNSCB_QOFF);
}
/*
@@ -6649,20 +7827,19 @@
* Message out buffer starts empty
*/
aic_outb(p, MSG_NOOP, MSG_OUT);
+ aic_outb(p, MSG_NOOP, LAST_MSG);
/*
- * Load the sequencer program, then re-enable the board -
- * resetting the AIC-7770 disables it, leaving the lights
- * on with nobody home. On the PCI bus you *may* be home,
- * but then your mailing address is dynamically assigned
- * so no one can find you anyway :-)
- */
- aic7xxx_loadseq(p);
-
- if ( (p->type & AHC_AIC7770) == AHC_AIC7770 )
- {
- aic_outb(p, ENABLE, BCTL); /* Enable the boards BUS drivers. */
- }
+ * Set all the other asundry items that haven't been set yet.
+ * This includes just dumping init values to a lot of registers simply
+ * to make sure they've been touched and are ready for use parity wise
+ * speaking.
+ */
+ aic_outb(p, 0, TMODE_CMDADDR);
+ aic_outb(p, 0, TMODE_CMDADDR + 1);
+ aic_outb(p, 0, TMODE_CMDADDR + 2);
+ aic_outb(p, 0, TMODE_CMDADDR + 3);
+ aic_outb(p, 0, TMODE_CMDADDR_NEXT);
/*
* Link us into the list of valid hosts
@@ -6671,10 +7848,104 @@
first_aic7xxx = p;
/*
- * Unpause the sequencer before returning and enable
- * interrupts - we shouldn't get any until the first
- * command is sent to us by the high-level SCSI code.
+ * Clear out any possible pending interrupts, again.
+ */
+ aic7xxx_clear_intstat(p);
+
+ /*
+ * Allocate the first set of scbs for this controller. This is to stream-
+ * line code elsewhere in the driver. If we have to check for the existence
+ * of scbs in certain code sections, it slows things down. However, as
+ * soon as we register the IRQ for this card, we could get an interrupt that
+ * includes possibly the SCSI_RSTI interrupt. If we catch that interrupt
+ * then we are likely to segfault if we don't have at least one chunk of
+ * SCBs allocated or add checks all through the reset code to make sure
+ * that the SCBs have been allocated which is an invalid running condition
+ * and therefore I think it's preferable to simply pre-allocate the first
+ * chunk of SCBs.
*/
+ aic7xxx_allocate_scb(p);
+
+ if ( !(aic7xxx_no_reset) )
+ {
+ if (p->features & AHC_TWIN)
+ {
+ if (aic7xxx_verbose & VERBOSE_PROBE2)
+ printk(KERN_INFO "(scsi%d) Resetting channel B\n", p->host_no);
+ aic_outb(p, aic_inb(p, SBLKCTL) | SELBUSB, SBLKCTL);
+ aic7xxx_reset_current_bus(p);
+ aic_outb(p, aic_inb(p, SBLKCTL) & ~SELBUSB, SBLKCTL);
+ }
+ /* Reset SCSI bus A. */
+ if (aic7xxx_verbose & VERBOSE_PROBE2)
+ { /* In case we are a 3940, 3985, or 7895, print the right channel */
+ char *channel = "";
+ if (p->flags & AHC_MULTI_CHANNEL)
+ {
+ channel = " A";
+ if (p->flags & (AHC_CHNLB|AHC_CHNLC))
+ channel = (p->flags & AHC_CHNLB) ? " B" : " C";
+ }
+ printk(KERN_INFO "(scsi%d) Resetting channel%s\n", p->host_no, channel);
+ }
+
+ /*
+ * Some of the new Ultra2 chipsets need a longer delay after a chip
+ * reset than just the init setup creates, so we have to delay here
+ * before we go into a reset in order to make the chips happy.
+ */
+ if (p->features & AHC_ULTRA2)
+ mdelay(250);
+ aic7xxx_reset_current_bus(p);
+
+ /*
+ * Delay for the reset delay.
+ */
+ if (!reset_delay)
+ aic7xxx_delay(AIC7XXX_RESET_DELAY);
+ }
+ else
+ {
+ if (!reset_delay)
+ {
+ printk(KERN_INFO "(scsi%d) Not resetting SCSI bus. Note: Don't use "
+ "the no_reset\n", p->host_no);
+ printk(KERN_INFO "(scsi%d) option unless you have a verifiable need "
+ "for it.\n", p->host_no);
+ printk(KERN_INFO "(scsi%d) The no_reset option is known to break some "
+ "systems,\n", p->host_no);
+ printk(KERN_INFO "(scsi%d) and is not supported by the driver author\n",
+ p->host_no);
+ aic7xxx_delay(AIC7XXX_RESET_DELAY);
+ }
+ }
+
+ /*
+ * Register IRQ with the kernel. Only allow sharing IRQs with
+ * PCI devices.
+ */
+ if (!(p->chip & AHC_PCI))
+ {
+ result = (request_irq(p->irq, do_aic7xxx_isr, 0, "aic7xxx", p));
+ }
+ else
+ {
+ result = (request_irq(p->irq, do_aic7xxx_isr, SA_SHIRQ,
+ "aic7xxx", p));
+ if (result < 0)
+ {
+ result = (request_irq(p->irq, do_aic7xxx_isr, SA_INTERRUPT | SA_SHIRQ,
+ "aic7xxx", p));
+ }
+ }
+ if (result < 0)
+ {
+ printk(KERN_WARNING "(scsi%d) Couldn't register IRQ %d, ignoring "
+ "controller.\n", p->host_no, p->irq);
+ p->irq = 0;
+ return (0);
+ }
+
unpause_sequencer(p, /* unpause_always */ TRUE);
return (found);
@@ -6691,12 +7962,9 @@
int
aic7xxx_chip_reset(struct aic7xxx_host *p)
{
- unsigned char hcntrl;
+ unsigned char sblkctl;
int wait;
- /* Retain the IRQ type across the chip reset. */
- hcntrl = (aic_inb(p, HCNTRL) & IRQMS) | INTEN;
-
/*
* For some 274x boards, we must clear the CHIPRST bit and pause
* the sequencer. For some reason, this makes the driver work.
@@ -6707,29 +7975,26 @@
* In the future, we may call this function as a last resort for
* error handling. Let's be nice and not do any unecessary delays.
*/
- wait = 1000; /* 1 second (1000 * 1000 usec) */
- while ((wait > 0) && ((aic_inb(p, HCNTRL) & CHIPRSTACK) == 0))
+ wait = 1000; /* 1 second (1000 * 1 msec) */
+ while (--wait && !(aic_inb(p, HCNTRL) & CHIPRSTACK))
{
- mdelay(1); /* 1 msec = 1000 usec */
- wait = wait - 1;
- }
-
- if ((aic_inb(p, HCNTRL) & CHIPRSTACK) == 0)
- {
- printk(KERN_INFO "aic7xxx: Chip reset not cleared; clearing manually.\n");
+ mdelay(1); /* 1 msec */
}
- aic_outb(p, hcntrl | PAUSE, HCNTRL);
+ pause_sequencer(p);
- switch( aic_inb(p, SBLKCTL) & 0x0a )
+ sblkctl = aic_inb(p, SBLKCTL) & (SELBUSB|SELWIDE);
+ if (p->chip & AHC_PCI)
+ sblkctl &= ~SELBUSB;
+ switch( sblkctl )
{
case 0: /* normal narrow card */
break;
case 2: /* Wide card */
- p->type |= AHC_WIDE;
+ p->features |= AHC_WIDE;
break;
case 8: /* Twin card */
- p->type |= AHC_TWIN;
+ p->features |= AHC_TWIN;
p->flags |= AHC_MULTI_CHANNEL;
break;
default: /* hmmm...we don't know what this is */
@@ -6753,6 +8018,7 @@
{
struct aic7xxx_host *p = NULL;
struct Scsi_Host *host;
+ int i;
/*
* Allocate a storage area by registering us with the mid-level
@@ -6764,6 +8030,7 @@
{
p = (struct aic7xxx_host *) host->hostdata;
memset(p, 0, sizeof(struct aic7xxx_host));
+ *p = *temp;
p->host = host;
p->scb_data = kmalloc(sizeof(scb_data_type), GFP_ATOMIC);
@@ -6778,35 +8045,20 @@
* For some reason we don't have enough memory. Free the
* allocated memory for the aic7xxx_host struct, and return NULL.
*/
+ release_region(p->base, MAXREG - MINREG);
scsi_unregister(host);
- p = NULL;
+ return(NULL);
}
- if (p != NULL)
- {
- p->host_no = host->host_no;
- p->base = temp->base;
- p->mbase = temp->mbase;
- p->maddr = temp->maddr;
- p->flags = temp->flags;
- p->type = temp->type;
- p->unpause = temp->unpause;
- p->pause = temp->pause;
- p->pdev = temp->pdev;
- p->pci_bus = temp->pci_bus;
- p->pci_device_fn = temp->pci_device_fn;
- p->bios_address = temp->bios_address;
- p->irq = temp->irq;
- p->scsi_id = temp->scsi_id;
- p->scsi_id_b = temp->scsi_id_b;
- p->discenable = temp->discenable;
- p->ultraenb = temp->ultraenb;
- p->tagenable = 0;
- p->orderedtag = 0;
- p->board_name_index = temp->board_name_index;
- p->adapter_control = temp->adapter_control;
- p->bios_control = temp->bios_control;
- DRIVER_LOCK_INIT
+ p->host_no = host->host_no;
+ p->tagenable = 0;
+ p->orderedtag = 0;
+ for (i=0; i<MAX_TARGETS; i++)
+ {
+ p->transinfo[i].goal_period = 0;
+ p->transinfo[i].goal_offset = 0;
+ p->transinfo[i].goal_width = MSG_EXT_WDTR_BUS_8_BIT;
}
+ DRIVER_LOCK_INIT
}
return (p);
}
@@ -6822,28 +8074,35 @@
static void
aic7xxx_free(struct aic7xxx_host *p)
{
- int i, jump;
+ int i;
/*
* Free the allocated hardware SCB space.
*/
- if (p->scb_data->hscbs != NULL)
+ if (p->scb_data != NULL)
{
- kfree(p->scb_data->hscbs);
- }
- /*
- * Free the driver SCBs. These were allocated on an as-need
- * basis. However, we allocated them 30 at a time up until the
- * very last allocation (if there was one). So, we need to free
- * every 30th pointer to free the array (this also frees the
- * SG_array structs as well).
- *
- * Note, on 64 bit machines we allocate 29 at a time instead.
- */
- jump = (sizeof(int) == sizeof(void *)) ? 30 : 29;
- for (i = 0; i < p->scb_data->numscbs; i += jump)
- {
- kfree(p->scb_data->scb_array[i]);
+ if (p->scb_data->hscbs != NULL)
+ {
+ kfree(p->scb_data->hscb_kmalloc_ptr);
+ p->scb_data->hscbs = p->scb_data->hscb_kmalloc_ptr = NULL;
+ }
+ /*
+ * Free the driver SCBs. These were allocated on an as-need
+ * basis. We allocated these in groups depending on how many
+ * we could fit into a given amount of RAM. The tail SCB for
+ * these allocations has a pointer to the alloced area.
+ */
+ for (i = 0; i < p->scb_data->numscbs; i++)
+ {
+ if (p->scb_data->scb_array[i]->kmalloc_ptr != NULL)
+ kfree(p->scb_data->scb_array[i]->kmalloc_ptr);
+ p->scb_data->scb_array[i] = NULL;
+ }
+
+ /*
+ * Free the SCB data area.
+ */
+ kfree(p->scb_data);
}
/*
@@ -6858,10 +8117,6 @@
kfree(p->dev_sdtr_cmnd[i]);
}
- /*
- * Free the SCB data area.
- */
- kfree(p->scb_data);
}
/*+F*************************************************************************
@@ -6872,12 +8127,12 @@
* Load the seeprom and configure adapter and target settings.
* Returns 1 if the load was successful and 0 otherwise.
*-F*************************************************************************/
-static int
-load_seeprom (struct aic7xxx_host *p, unsigned char *sxfrctl1)
+static void
+aic7xxx_load_seeprom(struct aic7xxx_host *p, unsigned char *sxfrctl1)
{
int have_seeprom = 0;
- int i, max_targets;
- unsigned char target_settings, scsi_conf;
+ int i, max_targets, mask;
+ unsigned char scsirate, scsi_conf;
unsigned short scarray[128];
struct seeprom_config *sc = (struct seeprom_config *) scarray;
@@ -6885,42 +8140,31 @@
{
printk(KERN_INFO "aic7xxx: Loading serial EEPROM...");
}
- switch (p->type & 0x00001ff1)
+ switch (p->chip)
{
- case AHC_AIC7770: /* None of these adapters have seeproms. */
- case AHC_274:
+ case (AHC_AIC7770|AHC_EISA): /* None of these adapters have seeproms. */
+ if (aic_inb(p, SCSICONF) & TERM_ENB)
+ p->flags |= AHC_TERM_ENB_A;
+ if ( (p->features & AHC_TWIN) && (aic_inb(p, SCSICONF + 1) & TERM_ENB) )
+ p->flags |= AHC_TERM_ENB_B;
break;
- case AHC_284:
+ case (AHC_AIC7770|AHC_VL):
have_seeprom = read_284x_seeprom(p, (struct seeprom_config *) scarray);
break;
- case AHC_AIC7850: /* The 2910B is a 7850 with a seeprom. */
- case AHC_294AU:
- case AHC_AIC7870: /* For these controllers we try the three possible */
- case AHC_AIC7895: /* SEEPROM read types. If none works, then we are */
- case AHC_294: /* SOL. This should catch any SEEPROM variety */
- case AHC_394: /* Adaptec or some motherboard manufacturer might */
- case AHC_294U: /* throw at us, and since we perform a checksum */
- case AHC_394U: /* during the read, we should get bogus seeprom */
- case AHC_AIC7860: /* reads. */
- case AHC_AIC7880:
- case AHC_398:
- case AHC_398U:
+ default:
have_seeprom = read_seeprom(p, (p->flags & (AHC_CHNLB|AHC_CHNLC)),
- scarray, sizeof(*sc)/2, C46);
- if (!have_seeprom)
- have_seeprom = read_seeprom(p, (p->flags & (AHC_CHNLB|AHC_CHNLC)),
- scarray, sizeof(scarray)/2, C46);
- if (!have_seeprom)
- have_seeprom = read_seeprom(p, (p->flags & (AHC_CHNLB|AHC_CHNLC)),
- scarray, sizeof(*sc)/2, C56_66);
+ scarray, p->sc_size, p->sc_type);
if (!have_seeprom)
- have_seeprom = read_seeprom(p, (p->flags & (AHC_CHNLB|AHC_CHNLC)),
- scarray, sizeof(scarray)/2, C56_66);
- break;
-
- default:
+ {
+ if(p->sc_type == C46)
+ have_seeprom = read_seeprom(p, (p->flags & (AHC_CHNLB|AHC_CHNLC)),
+ scarray, p->sc_size, C56_66);
+ else
+ have_seeprom = read_seeprom(p, (p->flags & (AHC_CHNLB|AHC_CHNLC)),
+ scarray, p->sc_size, C46);
+ }
break;
}
@@ -6928,10 +8172,31 @@
{
if (aic7xxx_verbose & VERBOSE_PROBE2)
{
- printk("\naic7xxx: No SEEPROM available; using defaults.\n");
+ printk("\naic7xxx: No SEEPROM available.\n");
+ }
+ p->flags |= AHC_NEWEEPROM_FMT;
+ if (aic_inb(p, SCSISEQ) == 0)
+ {
+ p->flags |= AHC_USEDEFAULTS;
+ p->flags &= ~AHC_BIOS_ENABLED;
+ p->scsi_id = p->scsi_id_b = 7;
+ *sxfrctl1 |= STPWEN;
+ if (aic7xxx_verbose & VERBOSE_PROBE2)
+ {
+ printk("aic7xxx: Using default values.\n");
+ }
+ }
+ else if (aic7xxx_verbose & VERBOSE_PROBE2)
+ {
+ printk("aic7xxx: Using leftover BIOS values.\n");
}
- p->flags |= AHC_USEDEFAULTS;
- p->flags &= ~AHC_BIOS_ENABLED;
+ if ( *sxfrctl1 & STPWEN )
+ {
+ p->flags |= AHC_TERM_ENB_SE_LOW | AHC_TERM_ENB_SE_HIGH;
+ sc->adapter_control &= ~CFAUTOTERM;
+ sc->adapter_control |= CFSTERM | CFWSTERM | CFLVDSTERM;
+ }
+ p->flags |= AHC_EXTEND_TRANS_A | AHC_EXTEND_TRANS_B;
}
else
{
@@ -6941,15 +8206,25 @@
}
/*
+ * Note things in our flags
+ */
+ p->flags |= AHC_SEEPROM_FOUND;
+
+ /*
* Update the settings in sxfrctl1 to match the termination settings.
*/
*sxfrctl1 = 0;
/*
+ * Get our SCSI ID from the SEEPROM setting...
+ */
+ p->scsi_id = (sc->brtime_id & CFSCSIID);
+
+ /*
* First process the settings that are different between the VLB
* and PCI adapter seeproms.
*/
- if (p->type & AHC_284)
+ if ((p->chip & AHC_CHIPID_MASK) == AHC_AIC7770)
{
/* VLB adapter seeproms */
if (sc->bios_control & CF284XEXTEND)
@@ -6958,42 +8233,42 @@
if (sc->adapter_control & CF284XSTERM)
{
*sxfrctl1 |= STPWEN;
- p->flags |= AHC_TERM_ENB_A;
+ p->flags |= AHC_TERM_ENB_SE_LOW | AHC_TERM_ENB_SE_HIGH;
}
- /*
- * The 284x SEEPROM doesn't have a max targets field. We
- * set it to 16 to make sure we take care of the 284x-wide
- * adapters. For narrow adapters, going through the extra
- * 8 target entries will not cause any harm since they will
- * will not be used.
- *
- * XXX - We should probably break out the bus detection
- * from the register function so we can use it here
- * to tell us how many targets there really are.
- */
- max_targets = 16;
}
else
{
/* PCI adapter seeproms */
if (sc->bios_control & CFEXTEND)
p->flags |= AHC_EXTEND_TRANS_A;
+ if (sc->bios_control & CFBIOSEN)
+ p->flags |= AHC_BIOS_ENABLED;
+ else
+ p->flags &= ~AHC_BIOS_ENABLED;
if (sc->adapter_control & CFSTERM)
{
*sxfrctl1 |= STPWEN;
- p->flags |= AHC_TERM_ENB_A;
+ p->flags |= AHC_TERM_ENB_SE_LOW | AHC_TERM_ENB_SE_HIGH;
}
-
- /* Limit to 16 targets just in case. */
- max_targets = MIN(sc->max_targets & CFMAXTARG, 16);
}
+ p->sc = *sc;
+ }
- p->discenable = 0;
+ p->discenable = 0;
+
+ /*
+ * Limit to 16 targets just in case. The 2842 for one is known to
+ * blow the max_targets setting, future cards might also.
+ */
+ max_targets = MIN(sc->max_targets & CFMAXTARG,
+ ((p->features & (AHC_TWIN | AHC_WIDE)) ? 16 : 8));
+ if (have_seeprom)
+ {
for (i = 0; i < max_targets; i++)
{
- if( (p->type & AHC_ULTRA) &&
+ if( (p->features & AHC_ULTRA) &&
!(sc->adapter_control & CFULTRAEN) &&
(sc->device_flags[i] & CFSYNCHISULTRA) )
{
@@ -7001,114 +8276,203 @@
break;
}
}
+ }
- for (i = 0; i < max_targets; i++)
+ for (i = 0; i < max_targets; i++)
+ {
+ mask = (0x01 << i);
+ if (!have_seeprom)
+ {
+ if(aic_inb(p, SCSISEQ) != 0)
+ {
+ /*
+ * OK...the BIOS set things up and left behind the settings we need.
+ * Just make our sc->device_flags[i] entry match what the card has
+ * set for this device.
+ */
+ p->discenable =
+ ~(aic_inb(p, DISC_DSB) | (aic_inb(p, DISC_DSB + 1) << 8) );
+ p->ultraenb =
+ (aic_inb(p, ULTRA_ENB) | (aic_inb(p, ULTRA_ENB + 1) << 8) );
+ sc->device_flags[i] = (p->discenable & mask) ? CFDISC : 0;
+ if (aic_inb(p, TARG_SCSIRATE + i) & WIDEXFER)
+ sc->device_flags[i] |= CFWIDEB;
+ if (p->features & AHC_ULTRA2)
+ {
+ if (aic_inb(p, TARG_OFFSET + i))
+ {
+ sc->device_flags[i] |= CFSYNCH;
+ sc->device_flags[i] |= (aic_inb(p, TARG_SCSIRATE + i) & 0x07);
+ if ( (aic_inb(p, TARG_SCSIRATE + i) & 0x18) == 0x18 )
+ sc->device_flags[i] |= CFSYNCHISULTRA;
+ }
+ }
+ else
+ {
+ if (aic_inb(p, TARG_SCSIRATE + i) & ~WIDEXFER)
+ {
+ sc->device_flags[i] |= CFSYNCH;
+ if (p->features & AHC_ULTRA)
+ sc->device_flags[i] |= ((p->ultraenb & mask) ?
+ CFSYNCHISULTRA : 0);
+ }
+ }
+ }
+ else
+ {
+ /*
+ * Assume the BIOS has NOT been run on this card and nothing between
+ * the card and the devices is configured yet.
+ */
+ sc->device_flags[i] = CFDISC;
+ if (p->features & AHC_WIDE)
+ sc->device_flags[i] |= CFWIDEB;
+ if (p->features & AHC_ULTRA2)
+ sc->device_flags[i] |= 3;
+ else if (p->features & AHC_ULTRA)
+ sc->device_flags[i] |= CFSYNCHISULTRA;
+ sc->device_flags[i] |= CFSYNCH;
+ aic_outb(p, 0, TARG_SCSIRATE + i);
+ if (p->features & AHC_ULTRA2)
+ aic_outb(p, 0, TARG_OFFSET + i);
+ }
+ }
+ if (sc->device_flags[i] & CFDISC)
+ {
+ p->discenable |= mask;
+ }
+ if (p->flags & AHC_NEWEEPROM_FMT)
{
- target_settings = (sc->device_flags[i] & CFXFER) << 4;
- if (sc->device_flags[i] & CFSYNCH)
- {
- target_settings |= SOFS;
- }
- if (sc->device_flags[i] & CFWIDEB)
+ if (sc->device_flags[i] & CFSYNCHISULTRA)
{
- target_settings |= WIDEXFER;
+ p->ultraenb |= mask;
}
- if (sc->device_flags[i] & CFDISC)
+ }
+ else if (sc->adapter_control & CFULTRAEN)
+ {
+ p->ultraenb |= mask;
+ }
+ if ( (sc->device_flags[i] & CFSYNCH) == 0)
+ {
+ sc->device_flags[i] &= ~CFXFER;
+ p->ultraenb &= ~mask;
+ p->transinfo[i].user_offset = 0;
+ p->transinfo[i].user_period = 0;
+ p->transinfo[i].cur_offset = 0;
+ p->transinfo[i].cur_period = 0;
+ p->needsdtr_copy &= ~mask;
+ }
+ else
+ {
+ if (p->features & AHC_ULTRA2)
{
- p->discenable |= (0x01 << i);
+ p->transinfo[i].user_offset = MAX_OFFSET_ULTRA2;
+ p->transinfo[i].cur_offset = aic_inb(p, TARG_OFFSET + i);
+ scsirate = (sc->device_flags[i] & CFXFER) |
+ ((p->ultraenb & mask) ? 0x18 : 0x10);
+ p->transinfo[i].user_period = aic7xxx_find_period(p, scsirate,
+ AHC_SYNCRATE_ULTRA2);
+ p->transinfo[i].cur_period = aic7xxx_find_period(p,
+ aic_inb(p, TARG_SCSIRATE + i),
+ AHC_SYNCRATE_ULTRA2);
}
- if (p->flags & AHC_NEWEEPROM_FMT)
+ else
{
- if (sc->device_flags[i] & CFSYNCHISULTRA)
+ scsirate = (sc->device_flags[i] & CFXFER) << 4;
+ if (sc->device_flags[i] & CFWIDEB)
+ p->transinfo[i].user_offset = MAX_OFFSET_16BIT;
+ else
+ p->transinfo[i].user_offset = MAX_OFFSET_8BIT;
+ if (p->features & AHC_ULTRA)
{
- p->ultraenb |= (0x01 << i);
+ short ultraenb;
+ ultraenb = aic_inb(p, ULTRA_ENB) |
+ (aic_inb(p, ULTRA_ENB + 1) << 8);
+ p->transinfo[i].user_period = aic7xxx_find_period(p,
+ scsirate,
+ (p->ultraenb & mask) ?
+ AHC_SYNCRATE_ULTRA :
+ AHC_SYNCRATE_FAST);
+ p->transinfo[i].cur_period = aic7xxx_find_period(p,
+ aic_inb(p, TARG_SCSIRATE + i),
+ (ultraenb & mask) ?
+ AHC_SYNCRATE_ULTRA :
+ AHC_SYNCRATE_FAST);
}
+ else
+ p->transinfo[i].user_period = aic7xxx_find_period(p,
+ scsirate, AHC_SYNCRATE_FAST);
}
- else if (sc->adapter_control & CFULTRAEN)
- {
- p->ultraenb |= (0x01 << i);
- }
- if ( ((target_settings & 0x70) == 0x40) &&
- (p->ultraenb & (0x01 << i)) )
- {
- target_settings &= ~0x70;
- p->ultraenb &= ~(0x01 << i);
- }
- /*
- * Don't output these settings if we aren't resetting the bus, instead,
- * leave the devices current settings in place
- */
- if (!(aic7xxx_no_reset))
- aic_outb(p, target_settings, TARG_SCRATCH + i);
+ p->needsdtr_copy |= mask;
}
- aic_outb(p, ~(p->discenable & 0xFF), DISC_DSB);
- aic_outb(p, ~((p->discenable >> 8) & 0xFF), DISC_DSB + 1);
- aic_outb(p, (p->ultraenb & 0xFF), ULTRA_ENB);
- aic_outb(p, ((p->ultraenb >> 8) & 0xFF), ULTRA_ENB + 1);
-
- p->scsi_id = sc->brtime_id & CFSCSIID;
- p->adapter_control = sc->adapter_control;
- p->bios_control = sc->bios_control;
-
- if (p->bios_control & CFBIOSEN)
+ if ( (sc->device_flags[i] & CFWIDEB) && (p->features & AHC_WIDE) )
{
- p->flags &= ~AHC_USEDEFAULTS;
- p->flags |= AHC_BIOS_ENABLED;
+ p->transinfo[i].user_width = MSG_EXT_WDTR_BUS_16_BIT;
+ p->needwdtr_copy |= mask;
}
else
{
- p->flags &= ~AHC_BIOS_ENABLED;
- p->flags |= AHC_USEDEFAULTS;
+ p->transinfo[i].user_width = MSG_EXT_WDTR_BUS_8_BIT;
+ p->needwdtr_copy &= ~mask;
}
+ p->transinfo[i].cur_width =
+ (aic_inb(p, TARG_SCSIRATE + i) & WIDEXFER) ?
+ MSG_EXT_WDTR_BUS_16_BIT : MSG_EXT_WDTR_BUS_8_BIT;
+ }
+ aic_outb(p, ~(p->discenable & 0xFF), DISC_DSB);
+ aic_outb(p, ~((p->discenable >> 8) & 0xFF), DISC_DSB + 1);
+ p->needwdtr = p->needwdtr_copy;
+ p->needsdtr = p->needsdtr_copy;
+ p->wdtr_pending = p->sdtr_pending = 0;
+
+ /*
+ * We set the p->ultraenb from the SEEPROM to begin with, but now we make
+ * it match what is already down in the card. If we are doing a reset
+ * on the card then this will get put back to a default state anyway.
+ * This allows us to not have to pre-emptively negotiate when using the
+ * no_reset option.
+ */
+ if (p->features & AHC_ULTRA)
+ p->ultraenb = aic_inb(p, ULTRA_ENB) | (aic_inb(p, ULTRA_ENB + 1) << 8);
+
+
+ scsi_conf = (p->scsi_id & HSCSIID);
+
+ if(have_seeprom)
+ {
+ p->adapter_control = sc->adapter_control;
+ p->bios_control = sc->bios_control;
- if ((p->type & 0x1ff1) == AHC_AIC7895)
+ switch (p->chip & AHC_CHIPID_MASK)
{
- if (p->adapter_control & CFBPRIMARY)
- p->flags |= AHC_CHANNEL_B_PRIMARY;
+ case AHC_AIC7895:
+ case AHC_AIC7896:
+ if (p->adapter_control & CFBPRIMARY)
+ p->flags |= AHC_CHANNEL_B_PRIMARY;
+ default:
+ break;
}
- scsi_conf = (p->scsi_id & 0x7);
if (sc->adapter_control & CFSPARITY)
scsi_conf |= ENSPCHK;
- /*
- * The 7850 controllers with a seeprom, do not honor the CFRESETB
- * flag in the seeprom. Assume that we want to reset the SCSI bus.
- */
- if (sc->adapter_control & CFRESETB)
- scsi_conf |= RESET_SCSI;
- /*
- * We may be a 2842, if so, preserve the TERM_ENB bit in scsi conf
- */
- if ( (p->flags & AHC_TERM_ENB_A) &&
- ((p->type & AHC_AIC7770) == AHC_AIC7770) )
- scsi_conf |= TERM_ENB;
- /*
- * If this is an Ultra card, is Ultra mode enabled? If not, disable
- * it in the host struct as well
- */
- if ( (p->type & AHC_ULTRA) &&
- !(sc->adapter_control & CFULTRAEN) &&
- !(p->flags & AHC_NEWEEPROM_FMT) )
- p->type &= ~AHC_ULTRA;
+ }
+ else
+ {
+ scsi_conf |= ENSPCHK | RESET_SCSI;
+ }
+ /*
+ * Only set the SCSICONF and SCSICONF + 1 registers if we are a PCI card.
+ * The 2842 and 2742 cards already have these registers set and we don't
+ * want to muck with them since we don't set all the bits they do.
+ */
+ if ( (p->chip & ~AHC_CHIPID_MASK) == AHC_PCI )
+ {
/* Set the host ID */
aic_outb(p, scsi_conf, SCSICONF);
/* In case we are a wide card */
aic_outb(p, p->scsi_id, SCSICONF + 1);
-
- if ((p->type & AHC_AIC7860) == AHC_AIC7860)
- {
- if ( aic_inb(p, SPIOCAP) & SSPIOCPS )
- /*
- * Update the settings in sxfrctl1 to match the termination
- * settings.
- */
- configure_termination(p, sxfrctl1, sc->adapter_control, max_targets);
- }
- else if (have_seeprom && ((p->type & AHC_AIC7770) != AHC_AIC7770))
- configure_termination(p, sxfrctl1, sc->adapter_control, max_targets);
}
- return (have_seeprom);
}
/*+F*************************************************************************
@@ -7131,7 +8495,7 @@
struct aic7xxx_host *list_p = NULL;
int found = 0;
ahc_flag_type flags = 0;
- ahc_type type;
+ int type;
unsigned char sxfrctl1;
#if defined(__i386__) || defined(__alpha__)
unsigned char hcntrl, hostconf;
@@ -7165,7 +8529,7 @@
* EISA/VL-bus card signature probe.
*/
slot = MINSLOT;
- while (slot <= MAXSLOT)
+ while ( (slot <= MAXSLOT) && !(aic7xxx_no_probe) )
{
base = SLOTBASE(slot) + MINREG;
@@ -7179,27 +8543,11 @@
continue; /* back to the beginning of the for loop */
}
flags = 0;
- type = aic7xxx_probe(slot, base + HID0, &flags);
- switch (type)
+ type = aic7xxx_probe(slot, base + AHC_HID0, &flags);
+ if (type == -1)
{
- case AHC_AIC7770:
- if (aic7xxx_verbose & VERBOSE_PROBE2)
- printk("aic7xxx: <%s> at EISA %d\n",
- board_names[2], slot);
- break;
- case AHC_274:
- if (aic7xxx_verbose & VERBOSE_PROBE2)
- printk("aic7xxx: <%s> at EISA %d\n",
- board_names[3], slot);
- break;
- case AHC_284:
- if (aic7xxx_verbose & VERBOSE_PROBE2)
- printk("aic7xxx: <%s> at VLB %d\n",
- board_names[4], slot);
- break;
- default:
- slot++;
- continue; /* back to the beginning of the while loop */
+ slot++;
+ continue;
}
temp_p = kmalloc(sizeof(struct aic7xxx_host), GFP_ATOMIC);
if (temp_p == NULL)
@@ -7222,8 +8570,6 @@
temp_p->unpause = hcntrl | INTEN;
temp_p->pause = hcntrl | PAUSE | INTEN;
temp_p->base = base;
- temp_p->type = type;
- temp_p->flags = flags | AHC_PAGESCBS;
temp_p->mbase = 0;
temp_p->maddr = 0;
temp_p->pci_bus = 0;
@@ -7234,6 +8580,8 @@
temp_p->irq = 0;
else
temp_p->irq = aic_inb(temp_p, INTDEF) & 0x0F;
+ temp_p->flags |= AHC_PAGESCBS;
+
switch (temp_p->irq)
{
case 9:
@@ -7256,6 +8604,7 @@
* We are commited now, everything has been checked and this card
* has been found, now we just set it up
*/
+
/*
* Insert our new struct into the list at the end
*/
@@ -7277,12 +8626,18 @@
temp_p->flags |= AHC_EXTEND_TRANS_B;
}
- switch (temp_p->type & 0x1ff1)
+ switch (type)
{
- case AHC_AIC7770:
+ case 0:
temp_p->board_name_index = 2;
- case AHC_274:
+ if (aic7xxx_verbose & VERBOSE_PROBE2)
+ printk("aic7xxx: <%s> at EISA %d\n",
+ board_names[2], slot);
+ /* FALLTHROUGH */
+ case 1:
{
+ temp_p->chip = AHC_AIC7770 | AHC_EISA;
+ temp_p->features |= AHC_AIC7770_FE;
temp_p->bios_control = aic_inb(temp_p, HA_274_BIOSCTRL);
/*
@@ -7291,7 +8646,12 @@
* the mid-level SCSI code which channel is primary.
*/
if (temp_p->board_name_index == 0)
+ {
temp_p->board_name_index = 3;
+ if (aic7xxx_verbose & VERBOSE_PROBE2)
+ printk("aic7xxx: <%s> at EISA %d\n",
+ board_names[3], slot);
+ }
if (temp_p->bios_control & CHANNEL_B_PRIMARY)
{
temp_p->flags |= AHC_CHANNEL_B_PRIMARY;
@@ -7299,7 +8659,6 @@
if ((temp_p->bios_control & BIOSMODE) == BIOSDISABLED)
{
- temp_p->flags |= AHC_USEDEFAULTS;
temp_p->flags &= ~AHC_BIOS_ENABLED;
}
else
@@ -7308,79 +8667,46 @@
temp_p->flags |= AHC_BIOS_ENABLED;
if ( (temp_p->bios_control & 0x20) == 0 )
{
- switch(temp_p->bios_control & 0x07)
- {
- case 0x0:
- temp_p->bios_address = 0xcc000;
- break;
- case 0x1:
- temp_p->bios_address = 0xd0000;
- break;
- case 0x2:
- temp_p->bios_address = 0xd4000;
- break;
- case 0x3:
- temp_p->bios_address = 0xd8000;
- break;
- case 0x4:
- temp_p->bios_address = 0xdc000;
- break;
- case 0x5:
- temp_p->bios_address = 0xe0000;
- break;
- case 0x6:
- temp_p->bios_address = 0xe4000;
- break;
- case 0x7:
- temp_p->bios_address = 0xe8000;
- break;
- default:
- break; /* can't get here */
- }
+ temp_p->bios_address = 0xcc000;
+ temp_p->bios_address += (0x4000 * (temp_p->bios_control & 0x07));
}
else
{
- switch(temp_p->bios_control & 0x06)
- {
- case 0x0:
- temp_p->bios_address = 0xd0000;
- break;
- case 0x2:
- temp_p->bios_address = 0xd8000;
- break;
- case 0x4:
- temp_p->bios_address = 0xe0000;
- break;
- case 0x6:
- temp_p->bios_address = 0xe8000;
- break;
- default:
- break; /* can't get here */
- }
+ temp_p->bios_address = 0xd0000;
+ temp_p->bios_address += (0x8000 * (temp_p->bios_control & 0x06));
}
}
temp_p->adapter_control = aic_inb(temp_p, SCSICONF) << 8;
temp_p->adapter_control |= aic_inb(temp_p, SCSICONF + 1);
- if (temp_p->flags & AHC_USEDEFAULTS)
+ if (temp_p->features & AHC_WIDE)
{
- temp_p->scsi_id = temp_p->scsi_id_b = 7;
- temp_p->flags |= AHC_TERM_ENB_A | AHC_TERM_ENB_B;
+ temp_p->scsi_id = temp_p->adapter_control & HWSCSIID;
+ temp_p->scsi_id_b = temp_p->scsi_id;
}
else
{
- if ( ((temp_p->adapter_control >> 8) & TERM_ENB) != 0 )
- temp_p->flags |= AHC_TERM_ENB_A;
- if ( (temp_p->adapter_control & TERM_ENB) != 0 )
- temp_p->flags |= AHC_TERM_ENB_B;
temp_p->scsi_id = (temp_p->adapter_control >> 8) & HSCSIID;
temp_p->scsi_id_b = temp_p->adapter_control & HSCSIID;
}
+ aic7xxx_load_seeprom(temp_p, &sxfrctl1);
break;
}
- case AHC_284:
- load_seeprom(temp_p, &sxfrctl1);
+ case 2:
+ case 3:
+ temp_p->chip = AHC_AIC7770 | AHC_VL;
+ temp_p->features |= AHC_AIC7770_FE;
+ if (type == 2)
+ temp_p->flags |= AHC_BIOS_ENABLED;
+ else
+ temp_p->flags &= ~AHC_BIOS_ENABLED;
+ if (aic_inb(temp_p, SCSICONF) & TERM_ENB)
+ sxfrctl1 = STPWEN;
+ aic7xxx_load_seeprom(temp_p, &sxfrctl1);
temp_p->board_name_index = 4;
+ if (aic7xxx_verbose & VERBOSE_PROBE2)
+ printk("aic7xxx: <%s> at VLB %d\n",
+ board_names[2], slot);
switch( aic_inb(temp_p, STATUS_2840) & BIOS_SEL )
{
case 0x00:
@@ -7439,42 +8765,84 @@
{
unsigned short vendor_id;
unsigned short device_id;
- ahc_type type;
+ ahc_chip chip;
ahc_flag_type flags;
+ ahc_feature features;
int board_name_index;
- } const aic7xxx_pci_devices[] = {
+ unsigned short seeprom_size;
+ unsigned short seeprom_type;
+ } const aic_pdevs[] = {
{PCI_VENDOR_ID_ADAPTEC, PCI_DEVICE_ID_ADAPTEC_7810, AHC_NONE,
- AHC_FNONE, 1 },
+ AHC_FNONE, AHC_FENONE, 1,
+ 32, C46 },
{PCI_VENDOR_ID_ADAPTEC, PCI_DEVICE_ID_ADAPTEC_7850, AHC_AIC7850,
- AHC_PAGESCBS | AHC_USEDEFAULTS, 5 },
+ AHC_PAGESCBS, AHC_AIC7850_FE, 5,
+ 32, C46 },
{PCI_VENDOR_ID_ADAPTEC, PCI_DEVICE_ID_ADAPTEC_7855, AHC_AIC7850,
- AHC_PAGESCBS | AHC_USEDEFAULTS, 6 },
+ AHC_PAGESCBS, AHC_AIC7850_FE, 6,
+ 32, C46 },
{PCI_VENDOR_ID_ADAPTEC, PCI_DEVICE_ID_ADAPTEC_7860, AHC_AIC7860,
- AHC_PAGESCBS | AHC_NEWEEPROM_FMT | AHC_BIOS_ENABLED, 7 },
- {PCI_VENDOR_ID_ADAPTEC, PCI_DEVICE_ID_ADAPTEC_7861, AHC_294AU,
- AHC_PAGESCBS | AHC_NEWEEPROM_FMT | AHC_BIOS_ENABLED, 8 },
+ AHC_PAGESCBS | AHC_NEWEEPROM_FMT | AHC_BIOS_ENABLED,
+ AHC_AIC7860_FE, 7,
+ 32, C46 },
+ {PCI_VENDOR_ID_ADAPTEC, PCI_DEVICE_ID_ADAPTEC_7861, AHC_AIC7860,
+ AHC_PAGESCBS | AHC_NEWEEPROM_FMT | AHC_BIOS_ENABLED,
+ AHC_AIC7860_FE, 8,
+ 32, C46 },
{PCI_VENDOR_ID_ADAPTEC, PCI_DEVICE_ID_ADAPTEC_7870, AHC_AIC7870,
- AHC_PAGESCBS | AHC_BIOS_ENABLED, 9 },
- {PCI_VENDOR_ID_ADAPTEC, PCI_DEVICE_ID_ADAPTEC_7871, AHC_294,
- AHC_PAGESCBS | AHC_BIOS_ENABLED, 10 },
- {PCI_VENDOR_ID_ADAPTEC, PCI_DEVICE_ID_ADAPTEC_7872, AHC_394,
- AHC_PAGESCBS | AHC_BIOS_ENABLED, 11 },
- {PCI_VENDOR_ID_ADAPTEC, PCI_DEVICE_ID_ADAPTEC_7873, AHC_398,
- AHC_PAGESCBS | AHC_BIOS_ENABLED, 12 },
- {PCI_VENDOR_ID_ADAPTEC, PCI_DEVICE_ID_ADAPTEC_7874, AHC_294,
- AHC_PAGESCBS | AHC_BIOS_ENABLED, 13 },
+ AHC_PAGESCBS | AHC_BIOS_ENABLED, AHC_AIC7870_FE, 9,
+ 32, C46 },
+ {PCI_VENDOR_ID_ADAPTEC, PCI_DEVICE_ID_ADAPTEC_7871, AHC_AIC7870,
+ AHC_PAGESCBS | AHC_BIOS_ENABLED, AHC_AIC7870_FE, 10,
+ 32, C46 },
+ {PCI_VENDOR_ID_ADAPTEC, PCI_DEVICE_ID_ADAPTEC_7872, AHC_AIC7870,
+ AHC_PAGESCBS | AHC_BIOS_ENABLED | AHC_MULTI_CHANNEL,
+ AHC_AIC7870_FE, 11,
+ 32, C56_66 },
+ {PCI_VENDOR_ID_ADAPTEC, PCI_DEVICE_ID_ADAPTEC_7873, AHC_AIC7870,
+ AHC_PAGESCBS | AHC_BIOS_ENABLED | AHC_MULTI_CHANNEL,
+ AHC_AIC7870_FE, 12,
+ 32, C56_66 },
+ {PCI_VENDOR_ID_ADAPTEC, PCI_DEVICE_ID_ADAPTEC_7874, AHC_AIC7870,
+ AHC_PAGESCBS | AHC_BIOS_ENABLED, AHC_AIC7870_FE, 13,
+ 32, C46 },
{PCI_VENDOR_ID_ADAPTEC, PCI_DEVICE_ID_ADAPTEC_7880, AHC_AIC7880,
- AHC_PAGESCBS | AHC_BIOS_ENABLED, 14 },
- {PCI_VENDOR_ID_ADAPTEC, PCI_DEVICE_ID_ADAPTEC_7881, AHC_294U,
- AHC_PAGESCBS | AHC_BIOS_ENABLED, 15 },
- {PCI_VENDOR_ID_ADAPTEC, PCI_DEVICE_ID_ADAPTEC_7882, AHC_394U,
- AHC_PAGESCBS | AHC_BIOS_ENABLED, 16 },
- {PCI_VENDOR_ID_ADAPTEC, PCI_DEVICE_ID_ADAPTEC_7883, AHC_398U,
- AHC_PAGESCBS | AHC_BIOS_ENABLED, 17 },
- {PCI_VENDOR_ID_ADAPTEC, PCI_DEVICE_ID_ADAPTEC_7884, AHC_294U,
- AHC_PAGESCBS | AHC_BIOS_ENABLED, 18 },
+ AHC_PAGESCBS | AHC_BIOS_ENABLED, AHC_AIC7880_FE, 14,
+ 32, C46 },
+ {PCI_VENDOR_ID_ADAPTEC, PCI_DEVICE_ID_ADAPTEC_7881, AHC_AIC7880,
+ AHC_PAGESCBS | AHC_BIOS_ENABLED, AHC_AIC7880_FE, 15,
+ 32, C46 },
+ {PCI_VENDOR_ID_ADAPTEC, PCI_DEVICE_ID_ADAPTEC_7882, AHC_AIC7880,
+ AHC_PAGESCBS | AHC_BIOS_ENABLED | AHC_MULTI_CHANNEL,
+ AHC_AIC7880_FE, 16,
+ 32, C56_66 },
+ {PCI_VENDOR_ID_ADAPTEC, PCI_DEVICE_ID_ADAPTEC_7883, AHC_AIC7880,
+ AHC_PAGESCBS | AHC_BIOS_ENABLED | AHC_MULTI_CHANNEL,
+ AHC_AIC7880_FE, 17,
+ 32, C56_66 },
+ {PCI_VENDOR_ID_ADAPTEC, PCI_DEVICE_ID_ADAPTEC_7884, AHC_AIC7880,
+ AHC_PAGESCBS | AHC_BIOS_ENABLED, AHC_AIC7880_FE, 18,
+ 32, C46 },
{PCI_VENDOR_ID_ADAPTEC, PCI_DEVICE_ID_ADAPTEC_7895, AHC_AIC7895,
- AHC_PAGESCBS | AHC_NEWEEPROM_FMT | AHC_BIOS_ENABLED, 19 }
+ AHC_PAGESCBS | AHC_NEWEEPROM_FMT | AHC_BIOS_ENABLED | AHC_MULTI_CHANNEL,
+ AHC_AIC7895_FE, 19,
+ 32, C56_66 },
+ {PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_7890, AHC_AIC7890,
+ AHC_PAGESCBS | AHC_NEWEEPROM_FMT | AHC_BIOS_ENABLED,
+ AHC_AIC7890_FE, 20,
+ 32, C46 },
+ {PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_2940U2, AHC_AIC7890,
+ AHC_PAGESCBS | AHC_NEWEEPROM_FMT | AHC_BIOS_ENABLED,
+ AHC_AIC7890_FE, 21,
+ 32, C46 },
+ {PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_7896, AHC_AIC7896,
+ AHC_PAGESCBS | AHC_NEWEEPROM_FMT | AHC_BIOS_ENABLED | AHC_MULTI_CHANNEL,
+ AHC_AIC7896_FE, 22,
+ 32, C56_66 },
+ {PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_3940U2, AHC_AIC7896,
+ AHC_PAGESCBS | AHC_NEWEEPROM_FMT | AHC_BIOS_ENABLED | AHC_MULTI_CHANNEL,
+ AHC_AIC7896_FE, 23,
+ 32, C56_66 },
};
unsigned short command;
@@ -7482,7 +8850,6 @@
#ifdef MMAPIO
unsigned long page_offset, base;
#endif
- struct aic7xxx_host *first_7895 = NULL;
#if LINUX_VERSION_CODE > KERNEL_VERSION(2,1,92)
struct pci_dev *pdev = NULL;
#else
@@ -7491,17 +8858,17 @@
unsigned char pci_bus, pci_devfn, pci_irq;
#endif
- for (i = 0; i < NUMBER(aic7xxx_pci_devices); i++)
+ for (i = 0; i < NUMBER(aic_pdevs); i++)
{
#if LINUX_VERSION_CODE > KERNEL_VERSION(2,1,92)
pdev = NULL;
- while ((pdev = pci_find_device(aic7xxx_pci_devices[i].vendor_id,
- aic7xxx_pci_devices[i].device_id,
+ while ((pdev = pci_find_device(aic_pdevs[i].vendor_id,
+ aic_pdevs[i].device_id,
pdev)))
#else
index = 0;
- while (!(pcibios_find_device(aic7xxx_pci_devices[i].vendor_id,
- aic7xxx_pci_devices[i].device_id,
+ while (!(pcibios_find_device(aic_pdevs[i].vendor_id,
+ aic_pdevs[i].device_id,
index++, &pci_bus, &pci_devfn)) )
#endif
{
@@ -7518,9 +8885,12 @@
GFP_ATOMIC)) != NULL )
{
memset(temp_p, 0, sizeof(struct aic7xxx_host));
- temp_p->type = aic7xxx_pci_devices[i].type;
- temp_p->flags = aic7xxx_pci_devices[i].flags;
- temp_p->board_name_index = aic7xxx_pci_devices[i].board_name_index;
+ temp_p->chip = aic_pdevs[i].chip | AHC_PCI;
+ temp_p->flags = aic_pdevs[i].flags;
+ temp_p->features = aic_pdevs[i].features;
+ temp_p->board_name_index = aic_pdevs[i].board_name_index;
+ temp_p->sc_size = aic_pdevs[i].seeprom_size;
+ temp_p->sc_type = aic_pdevs[i].seeprom_type;
/*
* Read sundry information from PCI BIOS.
@@ -7532,19 +8902,29 @@
temp_p->pci_device_fn = pdev->devfn;
temp_p->base = pdev->base_address[0];
temp_p->mbase = pdev->base_address[1];
+ if (aic7xxx_verbose & VERBOSE_PROBE2)
+ printk("aic7xxx: <%s> at PCI %d/%d\n",
+ board_names[aic_pdevs[i].board_name_index],
+ PCI_SLOT(temp_p->pdev->devfn),
+ PCI_FUNC(temp_p->pdev->devfn));
pci_read_config_word(pdev, PCI_COMMAND, &command);
if (aic7xxx_verbose & VERBOSE_PROBE2)
{
printk("aic7xxx: Initial PCI_COMMAND value was 0x%x\n",
(int)command);
}
+#ifdef AIC7XXX_STRICT_PCI_SETUP
command |= PCI_COMMAND_SERR | PCI_COMMAND_PARITY |
PCI_COMMAND_INVALIDATE | PCI_COMMAND_MASTER |
PCI_COMMAND_MEMORY | PCI_COMMAND_IO;
+#else
+ command |= PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY | PCI_COMMAND_IO;
+#endif
if (aic7xxx_pci_parity == 0)
command &= ~(PCI_COMMAND_SERR | PCI_COMMAND_PARITY);
pci_write_config_word(pdev, PCI_COMMAND, command);
- pci_read_config_dword(pdev, PCI_COMMAND, &devconfig);
+#ifdef AIC7XXX_STRICT_PCI_SETUP
+ pci_read_config_dword(pdev, DEVCONFIG, &devconfig);
if (aic7xxx_verbose & VERBOSE_PROBE2)
{
printk("aic7xxx: Initial DEVCONFIG value was 0x%x\n", devconfig);
@@ -7558,15 +8938,16 @@
{
devconfig |= 0x00000008;
}
- pci_write_config_dword(pdev, PCI_COMMAND, devconfig);
- if (aic7xxx_verbose & VERBOSE_PROBE2)
- printk("aic7xxx: <%s> at PCI %d/%d\n",
- board_names[aic7xxx_pci_devices[i].board_name_index],
- PCI_SLOT(temp_p->pdev->devfn),
- PCI_FUNC(temp_p->pdev->devfn));
-#else
+ pci_write_config_dword(pdev, DEVCONFIG, devconfig);
+#endif /* AIC7XXX_STRICT_PCI_SETUP */
+#else /* LINUX_VERSION_CODE > KERNEL_VERSION(2,1,92) */
temp_p->pci_bus = pci_bus;
temp_p->pci_device_fn = pci_devfn;
+ if (aic7xxx_verbose & VERBOSE_PROBE2)
+ printk("aic7xxx: <%s> at PCI %d/%d\n",
+ board_names[aic_pdevs[i].board_name_index],
+ PCI_SLOT(temp_p->pci_device_fn),
+ PCI_FUNC(temp_p->pci_device_fn));
pcibios_read_config_byte(pci_bus, pci_devfn, PCI_INTERRUPT_LINE,
&pci_irq);
temp_p->irq = pci_irq;
@@ -7582,12 +8963,17 @@
printk("aic7xxx: Initial PCI_COMMAND value was 0x%x\n",
(int)command);
}
+#ifdef AIC7XXX_STRICT_PCI_SETUP
command |= PCI_COMMAND_SERR | PCI_COMMAND_PARITY |
PCI_COMMAND_INVALIDATE | PCI_COMMAND_MASTER |
PCI_COMMAND_MEMORY | PCI_COMMAND_IO;
+#else
+ command |= PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY | PCI_COMMAND_IO;
+#endif
if (aic7xxx_pci_parity == 0)
command &= ~(PCI_COMMAND_SERR | PCI_COMMAND_PARITY);
pcibios_write_config_word(pci_bus, pci_devfn, PCI_COMMAND, command);
+#ifdef AIC7XXX_STRICT_PCI_SETUP
pcibios_read_config_dword(pci_bus, pci_devfn, DEVCONFIG, &devconfig);
if (aic7xxx_verbose & VERBOSE_PROBE2)
{
@@ -7603,12 +8989,8 @@
devconfig |= 0x00000008;
}
pcibios_write_config_dword(pci_bus, pci_devfn, DEVCONFIG, devconfig);
- if (aic7xxx_verbose & VERBOSE_PROBE2)
- printk("aic7xxx: <%s> at PCI %d/%d\n",
- board_names[aic7xxx_pci_devices[i].board_name_index],
- PCI_SLOT(temp_p->pci_device_fn),
- PCI_FUNC(temp_p->pci_device_fn));
-#endif
+#endif /* AIC7XXX_STRICT_PCI_SETUP */
+#endif /* LINUIX_VERSION_CODE > KERNEL_VERSION(2,1,92) */
/*
* The first bit (LSB) of PCI_BASE_ADDRESS_0 is always set, so
@@ -7616,49 +8998,24 @@
*/
temp_p->base &= PCI_BASE_ADDRESS_IO_MASK;
temp_p->mbase &= PCI_BASE_ADDRESS_MEM_MASK;
- temp_p->unpause = (aic_inb(temp_p, HCNTRL) & IRQMS) | INTEN;
+ temp_p->unpause = INTEN;
temp_p->pause = temp_p->unpause | PAUSE;
#ifdef MMAPIO
- if((temp_p->type & AHC_AIC7850) != AHC_AIC7850)
- {
- base = temp_p->mbase & PAGE_MASK;
- page_offset = temp_p->mbase - base;
- /*
- * replace the next line with this one if you are using 2.1.x:
- * temp_p->maddr = ioremap(base, page_offset + 256);
- */
+ base = temp_p->mbase & PAGE_MASK;
+ page_offset = temp_p->mbase - base;
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,1,0)
- temp_p->maddr = ioremap(base, page_offset + 256);
+ temp_p->maddr = ioremap_nocache(base, page_offset + 256);
#else
- temp_p->maddr = vremap(base, page_offset + 256);
+ temp_p->maddr = vremap(base, page_offset + 256);
#endif
- if(temp_p->maddr)
- {
- temp_p->maddr += page_offset;
- }
- }
- else
+ if(temp_p->maddr)
{
-#ifdef __i386__
- /*
- * Resort to PIO mode on these controllers and Intel hardware.
- * For other hardware we need to either disable these controllers
- * or do without MMAPed IO. However, for PPC, we can't do
- * MMAPed IO (according to what I've heard) so we may be forced
- * to just fail detection on those cards.
- */
- temp_p->maddr = NULL;
-#else
- kfree(temp_p);
- temp_p = NULL;
- continue;
-#endif /* __i386__ */
+ temp_p->maddr += page_offset;
}
#endif
- aic_outb(temp_p, temp_p->pause, HCNTRL);
- while( (aic_inb(temp_p, HCNTRL) & PAUSE) == 0 ) ;
+ pause_sequencer(temp_p);
/*
* Clear out any pending PCI error status messages. Also set
@@ -7675,7 +9032,10 @@
/*
* Remember how the card was setup in case there is no seeprom.
*/
- temp_p->scsi_id = aic_inb(temp_p, SCSIID) & OID;
+ if (temp_p->features & AHC_ULTRA2)
+ temp_p->scsi_id = aic_inb(temp_p, SCSIID_ULTRA2) & OID;
+ else
+ temp_p->scsi_id = aic_inb(temp_p, SCSIID) & OID;
/*
* Get current termination setting
*/
@@ -7688,11 +9048,17 @@
continue;
}
- switch (temp_p->type & 0x1ff1)
+ /*
+ * Doing a switch based upon i is really gross, but since Justin
+ * changed around the chip ID stuff, we can't use that any more.
+ * Since we don't scan the devices the same way as FreeBSD, we end
+ * up doing this gross hack in order to avoid totally splitting
+ * away from Justin's init code in ahc_pci.c
+ */
+ switch (i)
{
- case AHC_394: /* 3940 */
- case AHC_394U: /* 3940-Ultra */
- temp_p->flags |= AHC_MULTI_CHANNEL;
+ case 7: /* 3940 */
+ case 12: /* 3940-Ultra */
switch(PCI_SLOT(temp_p->pci_device_fn))
{
case 5:
@@ -7703,9 +9069,8 @@
}
break;
- case AHC_398: /* 3985 */
- case AHC_398U: /* 3985-Ultra */
- temp_p->flags |= AHC_MULTI_CHANNEL;
+ case 8: /* 3985 */
+ case 13: /* 3985-Ultra */
switch(PCI_SLOT(temp_p->pci_device_fn))
{
case 8:
@@ -7719,54 +9084,44 @@
}
break;
- case AHC_AIC7895:
- temp_p->flags |= AHC_MULTI_CHANNEL;
+ case 15:
+ case 18:
+ case 19:
#if LINUX_VERSION_CODE > KERNEL_VERSION(2,1,92)
if (PCI_FUNC(temp_p->pdev->devfn) != 0)
{
temp_p->flags |= AHC_CHNLB;
}
- pci_read_config_dword(pdev, DEVCONFIG, &devconfig);
- devconfig = le32_to_cpu(devconfig);
- devconfig |= SCBSIZE32;
- devconfig = cpu_to_le32(devconfig);
- pci_write_config_dword(pdev, DEVCONFIG, devconfig);
+ /*
+ * The 7895 is the only chipset that sets the SCBSIZE32 param
+ * in the DEVCONFIG register. The Ultra2 chipsets use
+ * the DSCOMMAND0 register instead.
+ */
+ if ((temp_p->chip & AHC_CHIPID_MASK) == AHC_AIC7895)
+ {
+ pci_read_config_dword(pdev, DEVCONFIG, &devconfig);
+ devconfig |= SCBSIZE32;
+ pci_write_config_dword(pdev, DEVCONFIG, devconfig);
+ }
#else
if (PCI_FUNC(temp_p->pci_device_fn) != 0)
{
temp_p->flags |= AHC_CHNLB;
}
- pcibios_read_config_dword(pci_bus, pci_devfn, DEVCONFIG,
- &devconfig);
- devconfig |= SCBSIZE32;
- pcibios_write_config_dword(pci_bus, pci_devfn, DEVCONFIG,
- devconfig);
-#endif
- if (aic7xxx_7895_irq_hack != -1)
+ /*
+ * The 7895 is the only chipset that sets the SCBSIZE32 param
+ * in the DEVCONFIG register. The Ultra2 chipsets use
+ * the DSCOMMAND0 register instead.
+ */
+ if ((temp_p->chip & AHC_CHIPID_MASK) == AHC_AIC7895)
{
- if (first_7895 == NULL)
- {
- printk(KERN_INFO "aic7xxx: Using 7895_irq_hack. Please "
- "upgrade your motherboard BIOS\n");
- first_7895 = temp_p;
- }
- else if (aic7xxx_7895_irq_hack == 0)
- {
- if (temp_p->flags & AHC_CHNLB)
- temp_p->irq = first_7895->irq;
- else
- first_7895->irq = temp_p->irq;
- first_7895 = NULL;
- }
- else
- {
- if ( !(temp_p->flags & AHC_CHNLB) )
- temp_p->irq = first_7895->irq;
- else
- first_7895->irq = temp_p->irq;
- first_7895 = NULL;
- }
+ pcibios_read_config_dword(pci_bus, pci_devfn, DEVCONFIG,
+ &devconfig);
+ devconfig |= SCBSIZE32;
+ pcibios_write_config_dword(pci_bus, pci_devfn, DEVCONFIG,
+ devconfig);
}
+#endif
break;
default:
break;
@@ -7778,21 +9133,74 @@
* on 394x and 398x cards we'll end up reading the wrong settings
* for channels B and C
*/
- if ( !(load_seeprom(temp_p, &sxfrctl1)) )
+ switch (temp_p->chip & AHC_CHIPID_MASK)
{
- temp_p->flags |= AHC_USEDEFAULTS;
- if (sxfrctl1 & STPWEN)
- temp_p->flags |= AHC_TERM_ENB_A | AHC_TERM_ENB_B;
+ case AHC_AIC7890:
+ case AHC_AIC7896:
+ aic_outb(temp_p, 0, SCAMCTL);
+ /*
+ * We used to set DPARCKEN in this register, but after talking
+ * to a tech from Adaptec, I found out they don't use that
+ * particular bit in their own register settings, and when you
+ * combine that with the fact that I determined that we were
+ * seeing Data-Path Parity Errors on things we shouldn't see
+ * them on, I think there is a bug in the silicon and the way
+ * to work around it is to disable this particular check. Also
+ * This bug only showed up on certain commands, so it seems to
+ * be pattern related or some such. The commands we would
+ * typically send as a linux TEST_UNIT_READY or INQUIRY command
+ * could cause it to be triggered, while regular commands that
+ * actually made reasonable use of the SG array capabilities
+ * seemed not to cause the problem.
+ */
+ /*
+ aic_outb(temp_p, aic_inb(temp_p, DSCOMMAND0) |
+ CACHETHEN | DPARCKEN | MPARCKEN |
+ USCBSIZE32 | CIOPARCKEN,
+ DSCOMMAND0);
+ */
+ aic_outb(temp_p, (aic_inb(temp_p, DSCOMMAND0) |
+ CACHETHEN | MPARCKEN | USCBSIZE32 |
+ CIOPARCKEN) & ~DPARCKEN, DSCOMMAND0);
+ /* FALLTHROUGH */
+ default:
+ /*
+ * We attempt to read a SEEPROM on *everything*. If we fail,
+ * then we fail, but this covers things like 2910c cards that
+ * now have SEEPROMs with their 7856 chipset that we would
+ * otherwise ignore. They still don't have a BIOS, but they
+ * have a SEEPROM that the SCSISelect utility on the Adaptec
+ * diskettes can configure.
+ */
+ aic7xxx_load_seeprom(temp_p, &sxfrctl1);
+ break;
+ case AHC_AIC7850:
+ case AHC_AIC7860:
+ /*
+ * Set the DSCOMMAND0 register on these cards different from
+ * on the 789x cards. Also, read the SEEPROM as well.
+ */
+ aic_outb(temp_p, (aic_inb(temp_p, DSCOMMAND0) |
+ CACHETHEN | MPARCKEN) & ~DPARCKEN,
+ DSCOMMAND0);
+ aic7xxx_load_seeprom(temp_p, &sxfrctl1);
+ break;
}
+
/*
* and then we need another switch based on the type in order to
* make sure the channel B primary flag is set properly on 7895
- * controllers....Arrrgggghhh!!!
+ * controllers....Arrrgggghhh!!! We also have to catch the fact
+ * that when you disable the BIOS on the 7895 on the Intel DK440LX
+ * motherboard, and possibly others, it only sets the BIOS disabled
+ * bit on the A channel...I think I'm starting to lean towards
+ * going postal....
*/
- switch(temp_p->type & 0x1ff1)
+ switch(temp_p->chip & AHC_CHIPID_MASK)
{
case AHC_AIC7895:
+ case AHC_AIC7896:
current_p = list_p;
while(current_p != NULL)
{
@@ -7801,11 +9209,21 @@
PCI_SLOT(temp_p->pci_device_fn)) )
{
if ( PCI_FUNC(current_p->pci_device_fn) == 0 )
+ {
temp_p->flags |=
(current_p->flags & AHC_CHANNEL_B_PRIMARY);
+ temp_p->flags &= ~(AHC_BIOS_ENABLED|AHC_USEDEFAULTS);
+ temp_p->flags |=
+ (current_p->flags & (AHC_BIOS_ENABLED|AHC_USEDEFAULTS));
+ }
else
+ {
current_p->flags |=
(temp_p->flags & AHC_CHANNEL_B_PRIMARY);
+ current_p->flags &= ~(AHC_BIOS_ENABLED|AHC_USEDEFAULTS);
+ current_p->flags |=
+ (temp_p->flags & (AHC_BIOS_ENABLED|AHC_USEDEFAULTS));
+ }
}
current_p = current_p->next;
}
@@ -7815,6 +9233,56 @@
}
/*
+ * We do another switch based on i so that we can exclude all
+ * 3895 devices from the next option since the 3895 cards use
+ * shared external SCB RAM while all other cards have dedicated
+ * external SCB RAM per channel. Also exclude the 7850 and
+ * 7860 based stuff since they can have garbage in the bit
+ * that indicates external RAM and get some of this stuff
+ * wrong as a result.
+ */
+ switch(temp_p->chip & AHC_CHIPID_MASK)
+ {
+ default:
+ break;
+ case AHC_AIC7895:
+ case AHC_AIC7896:
+#if LINUX_VERSION_CODE > KERNEL_VERSION(2,1,92)
+ pci_read_config_dword(pdev, DEVCONFIG, &devconfig);
+#else
+ pcibios_read_config_dword(pci_bus, pci_devfn, DEVCONFIG,
+ &devconfig);
+#endif
+ if (temp_p->features & AHC_ULTRA2)
+ {
+ if (aic_inb(temp_p, DSCOMMAND0) & RAMPSM_ULTRA2)
+ {
+ aic_outb(temp_p,
+ aic_inb(temp_p, DSCOMMAND0) & ~SCBRAMSEL_ULTRA2,
+ DSCOMMAND0);
+ temp_p->flags |= AHC_EXTERNAL_SRAM;
+ devconfig |= EXTSCBPEN;
+ }
+ }
+ else if (devconfig & RAMPSM)
+ {
+ devconfig &= ~SCBRAMSEL;
+ devconfig |= EXTSCBPEN;
+ temp_p->flags |= AHC_EXTERNAL_SRAM;
+ }
+#if LINUX_VERSION_CODE > KERNEL_VERSION(2,1,92)
+ pci_write_config_dword(pdev, DEVCONFIG, devconfig);
+#else
+ pcibios_write_config_dword(pci_bus, pci_devfn, DEVCONFIG,
+ devconfig);
+#endif
+ if ( (temp_p->flags & AHC_EXTERNAL_SRAM) &&
+ (temp_p->flags & AHC_CHNLB) )
+ aic_outb(temp_p, 1, CCSCBBADDR);
+ break;
+ }
+
+ /*
* Take the LED out of diagnostic mode
*/
aic_outb(temp_p,
@@ -7823,75 +9291,21 @@
/*
* We don't know where this is set in the SEEPROM or by the
- * BIOS, so we default to 100%.
+ * BIOS, so we default to 100%. On Ultra2 controllers, use 75%
+ * instead.
*/
- aic_outb(temp_p, DFTHRSH_100, DSPCISTATUS);
-
- if (temp_p->flags & AHC_USEDEFAULTS)
+ if (temp_p->features & AHC_ULTRA2)
{
- int j;
- unsigned char k;
- /*
- * Default setup; should only be used if the adapter does
- * not have a SEEPROM.
- */
- /*
- * Check the target scratch area to see if someone set us
- * up already. We are previously set up if the scratch
- * area contains something other than all zeroes and ones.
- */
- for (j = TARG_SCRATCH; j < 0x60; j++)
- {
- k = aic_inb(temp_p, j);
- /* Check for all zeros and ones. Break out if we pass */
- if( (k != 0x00) && (k != 0xff) )
- break;
- }
- /* If j makes it to 0x60, then all entries are either 0x00 or
- * 0xff. We would then assume we have *not* been initialized
- * and drop through here. OTOH, if even one entry is inited,
- * then as long as we appear to have a valid SCSI ID, we'll use
- * the leftover BIOS values.
- */
- if ((j != 0x60) && (temp_p->scsi_id != 0))
- {
- temp_p->flags &= ~AHC_USEDEFAULTS;
- if (aic7xxx_verbose & VERBOSE_PROBE2)
- {
- printk(KERN_INFO "aic7xxx: Using leftover BIOS values.\n");
- }
- }
- else
- {
- /*
- * Assume only one connector and always turn on
- * termination.
- */
- temp_p->flags &= ~AHC_BIOS_ENABLED;
- temp_p->flags |= AHC_TERM_ENB_A | AHC_TERM_ENB_B;
- sxfrctl1 = STPWEN;
- temp_p->scsi_id = 7;
- }
- aic_outb(temp_p, (temp_p->scsi_id & HSCSIID) | ENSPCHK | RESET_SCSI,
- SCSICONF);
- /* In case we are a wide card. */
- aic_outb(temp_p, temp_p->scsi_id, SCSICONF + 1);
+ aic_outb(temp_p, RD_DFTHRSH_75 | WR_DFTHRSH_75, DFF_THRSH);
}
- else /* not using defaults */
+ else
{
- if (sxfrctl1 & STPWEN)
- temp_p->flags |= AHC_TERM_ENB_A;
+ aic_outb(temp_p, DFTHRSH_100, DSPCISTATUS);
}
if (aic7xxx_extended)
temp_p->flags |= AHC_EXTEND_TRANS_A;
- /*
- * Put our termination setting into sxfrctl1 now that the
- * generic initialization is complete.
- */
- sxfrctl1 |= aic_inb(temp_p, SXFRCTL1);
- aic_outb(temp_p, sxfrctl1, SXFRCTL1);
if ( list_p == NULL )
{
list_p = current_p = temp_p;
@@ -7909,7 +9323,7 @@
else /* Well, we found one, but we couldn't get any memory */
{
printk("aic7xxx: Found <%s>\n",
- board_names[aic7xxx_pci_devices[i].board_name_index]);
+ board_names[aic_pdevs[i].board_name_index]);
printk(KERN_INFO "aic7xxx: Unable to allocate device memory, "
"skipping.\n");
}
@@ -7930,87 +9344,74 @@
*/
{
- struct aic7xxx_host *vlb_enab, *vlb_disab, *pci;
+ struct aic7xxx_host *sort_list[4] = { NULL, NULL, NULL, NULL };
+ struct aic7xxx_host *vlb, *pci;
struct aic7xxx_host *prev_p;
struct aic7xxx_host *p;
unsigned char left;
- prev_p = vlb_enab = vlb_disab = pci = NULL;
+ prev_p = vlb = pci = NULL;
temp_p = list_p;
while (temp_p != NULL)
{
- switch(temp_p->type)
+ switch(temp_p->chip & ~AHC_CHIPID_MASK)
{
- case AHC_AIC7770:
- case AHC_274:
- case AHC_284:
- if (temp_p->flags & AHC_BIOS_ENABLED)
+ case AHC_EISA:
+ case AHC_VL:
+ {
+ p = temp_p;
+ if (p->flags & AHC_BIOS_ENABLED)
+ vlb = sort_list[0];
+ else
+ vlb = sort_list[2];
+
+ if (vlb == NULL)
{
- if (vlb_enab == NULL)
- {
- vlb_enab = temp_p;
- temp_p = temp_p->next;
- vlb_enab->next = NULL;
- }
- else
- {
- current_p = vlb_enab;
- prev_p = NULL;
- while ( (current_p != NULL) &&
- (current_p->bios_address < temp_p->bios_address))
- {
- prev_p = current_p;
- current_p = current_p->next;
- }
- if (prev_p != NULL)
- {
- prev_p->next = temp_p;
- temp_p = temp_p->next;
- prev_p->next->next = current_p;
- }
- else
- {
- vlb_enab = temp_p;
- temp_p = temp_p->next;
- vlb_enab->next = current_p;
- }
- }
+ vlb = temp_p;
+ temp_p = temp_p->next;
+ vlb->next = NULL;
}
else
{
- if (vlb_disab == NULL)
+ current_p = vlb;
+ prev_p = NULL;
+ while ( (current_p != NULL) &&
+ (current_p->bios_address < temp_p->bios_address))
+ {
+ prev_p = current_p;
+ current_p = current_p->next;
+ }
+ if (prev_p != NULL)
{
- vlb_disab = temp_p;
+ prev_p->next = temp_p;
temp_p = temp_p->next;
- vlb_disab->next = NULL;
+ prev_p->next->next = current_p;
}
else
{
- current_p = vlb_disab;
- prev_p = NULL;
- while ( (current_p != NULL) &&
- (current_p->base < temp_p->base))
- {
- prev_p = current_p;
- current_p = current_p->next;
- }
- if (prev_p != NULL)
- {
- prev_p->next = temp_p;
- temp_p = temp_p->next;
- prev_p->next->next = current_p;
- }
- else
- {
- vlb_disab = temp_p;
- temp_p = temp_p->next;
- vlb_disab->next = current_p;
- }
+ vlb = temp_p;
+ temp_p = temp_p->next;
+ vlb->next = current_p;
}
}
+
+ if (p->flags & AHC_BIOS_ENABLED)
+ sort_list[0] = vlb;
+ else
+ sort_list[2] = vlb;
+
break;
+ }
default: /* All PCI controllers fall through to default */
+ {
+
+ p = temp_p;
+ if (p->flags & AHC_BIOS_ENABLED)
+ pci = sort_list[1];
+ else
+ pci = sort_list[3];
+
if (pci == NULL)
{
pci = temp_p;
@@ -8085,75 +9486,60 @@
pci->next = current_p;
}
}
+
+ if (p->flags & AHC_BIOS_ENABLED)
+ sort_list[1] = pci;
+ else
+ sort_list[3] = pci;
+
break;
+ }
} /* End of switch(temp_p->type) */
} /* End of while (temp_p != NULL) */
/*
* At this point, the cards have been broken into 4 sorted lists, now
* we run through the lists in order and register each controller
*/
- left = found;
- temp_p = vlb_enab;
- while(temp_p != NULL)
- {
- template->name = board_names[temp_p->board_name_index];
- p = aic7xxx_alloc(template, temp_p);
- if (p != NULL)
- {
- p->instance = found - left;
- if (aic7xxx_register(template, p, (--left)) == 0)
- {
- found--;
- aic7xxx_free(p);
- scsi_unregister(p->host);
- }
- }
- current_p = temp_p;
- temp_p = (struct aic7xxx_host *)temp_p->next;
- kfree(current_p);
- }
- temp_p = pci;
- while(temp_p != NULL)
- {
- template->name = board_names[temp_p->board_name_index];
- p = aic7xxx_alloc(template, temp_p);
- if (p != NULL)
- {
- p->instance = found - left;
- if (aic7xxx_register(template, p, (--left)) == 0)
- {
- found--;
- aic7xxx_free(p);
- scsi_unregister(p->host);
- }
- }
- current_p = temp_p;
- temp_p = (struct aic7xxx_host *)temp_p->next;
- kfree(current_p);
- }
- temp_p = vlb_disab;
- while(temp_p != NULL)
{
- template->name = board_names[temp_p->board_name_index];
- p = aic7xxx_alloc(template, temp_p);
- if (p != NULL)
+ int i;
+
+ left = found;
+ for (i=0; i<NUMBER(sort_list); i++)
{
- p->instance = found - left;
- if (aic7xxx_register(template, p, (--left)) == 0)
+ temp_p = sort_list[i];
+ while(temp_p != NULL)
{
- found--;
- aic7xxx_free(p);
- scsi_unregister(p->host);
+ template->name = board_names[temp_p->board_name_index];
+ p = aic7xxx_alloc(template, temp_p);
+ if (p != NULL)
+ {
+ p->instance = found - left;
+ if (aic7xxx_register(template, p, (--left)) == 0)
+ {
+ found--;
+ aic7xxx_release(p->host);
+ scsi_unregister(p->host);
+ }
+ else if (aic7xxx_dump_card)
+ {
+ pause_sequencer(p);
+ aic7xxx_print_card(p);
+ aic7xxx_print_scratch_ram(p);
+ unpause_sequencer(p, TRUE);
+ }
+ }
+ current_p = temp_p;
+ temp_p = (struct aic7xxx_host *)temp_p->next;
+ kfree(current_p);
}
}
- current_p = temp_p;
- temp_p = (struct aic7xxx_host *)temp_p->next;
- kfree(current_p);
}
}
return (found);
}
+#ifdef AIC7XXX_FAKE_NEGOTIATION_CMDS
+
/*+F*************************************************************************
* Function:
* aic7xxx_negotiation_complete
@@ -8165,7 +9551,7 @@
static void
aic7xxx_negotiation_complete(Scsi_Cmnd *cmd)
{
- memset(&cmd->sense_buffer[0], 0, sizeof(cmd->sense_buffer));
+ return;
}
/*+F*************************************************************************
@@ -8205,10 +9591,19 @@
cmd->underflow = 0;
cmd->cmd_len = 6;
}
+ /*
+ * Before sending this thing out, we also amke the cmd->next pointer
+ * point to the real command so we can stuff any possible SENSE data
+ * intp the real command instead of this fake command. This has to be
+ * done each time the command is built, not just the first time, hence
+ * it's outside of the above if()...
+ */
+ p->dev_wdtr_cmnd[tindex]->next = old_cmd;
aic7xxx_queue(p->dev_wdtr_cmnd[tindex],
aic7xxx_negotiation_complete);
}
- else if ( (p->needsdtr & (1<<tindex)) && !(p->sdtr_pending & (1<<tindex)) )
+ else if ( (p->needsdtr & (1<<tindex)) && !(p->sdtr_pending & (1<<tindex)) &&
+ !(p->wdtr_pending & (1<<tindex)) )
{
if(p->dev_sdtr_cmnd[tindex] == NULL)
{
@@ -8232,11 +9627,45 @@
cmd->underflow = 0;
cmd->cmd_len = 6;
}
+ /*
+ * Before sending this thing out, we also amke the cmd->next pointer
+ * point to the real command so we can stuff any possible SENSE data
+ * intp the real command instead of this fake command. This has to be
+ * done each time the command is built, not just the first time, hence
+ * it's outside of the above if()...
+ */
+ p->dev_sdtr_cmnd[tindex]->next = old_cmd;
aic7xxx_queue(p->dev_sdtr_cmnd[tindex],
aic7xxx_negotiation_complete);
}
}
+#endif
+
+#ifdef AIC7XXX_VERBOSE_DEBUGGING
+/*+F*************************************************************************
+ * Function:
+ * aic7xxx_print_scb
+ *
+ * Description:
+ * Dump the byte codes for an about to be sent SCB.
+ *-F*************************************************************************/
+static void
+aic7xxx_print_scb(struct aic7xxx_host *p, struct aic7xxx_scb *scb)
+{
+ int i;
+ unsigned char *x;
+
+ x = (unsigned char *)&scb->hscb->control;
+
+ for(i=0; i<32; i++)
+ {
+ printk("%02x ", x[i]);
+ }
+ printk("\n");
+}
+#endif
+
/*+F*************************************************************************
* Function:
* aic7xxx_buildscb
@@ -8290,12 +9719,13 @@
}
if (p->dev_flags[TARGET_INDEX(cmd)] & DEVICE_SCANNED)
{
+#ifdef AIC7XXX_FAKE_NEGOTIATION_CMDS
if ( (p->needwdtr & mask) && !(p->wdtr_pending & mask) )
{
if (cmd == p->dev_wdtr_cmnd[TARGET_INDEX(cmd)])
{
p->wdtr_pending |= mask;
- scb->flags |= SCB_MSGOUT_WDTR_16BIT;
+ scb->flags |= SCB_MSGOUT_WDTR;
hscb->control &= DISCENB;
hscb->control |= MK_MESSAGE;
scb->tag_action = 0;
@@ -8305,7 +9735,8 @@
aic7xxx_build_negotiation_cmnd(p, cmd, TARGET_INDEX(cmd));
}
}
- if ( (p->needsdtr & mask) && !(p->sdtr_pending & mask) )
+ else if ( (p->needsdtr & mask) && !(p->sdtr_pending & mask) &&
+ !(p->wdtr_pending & mask) )
{
if (cmd == p->dev_sdtr_cmnd[TARGET_INDEX(cmd)])
{
@@ -8320,6 +9751,36 @@
aic7xxx_build_negotiation_cmnd(p, cmd, TARGET_INDEX(cmd));
}
}
+#else
+ if ( (p->needwdtr & mask) && !(p->wdtr_pending & mask) &&
+ !(p->sdtr_pending & mask) && (cmd->lun == 0) )
+ {
+ p->wdtr_pending |= mask;
+ scb->flags |= SCB_MSGOUT_WDTR;
+ hscb->control &= DISCENB;
+ hscb->control |= MK_MESSAGE;
+ scb->tag_action = 0;
+#ifdef AIC7XXX_VERBOSE_DEBUGGING
+ if (aic7xxx_verbose > 0xffff)
+ printk(INFO_LEAD "Building WDTR command.\n", p->host_no,
+ CTL_OF_CMD(cmd));
+#endif
+ }
+ else if ( (p->needsdtr & mask) && !(p->wdtr_pending & mask) &&
+ !(p->sdtr_pending & mask) && (cmd->lun == 0) )
+ {
+ p->sdtr_pending |= mask;
+ scb->flags |= SCB_MSGOUT_SDTR;
+ hscb->control &= DISCENB;
+ hscb->control |= MK_MESSAGE;
+ scb->tag_action = 0;
+#ifdef AIC7XXX_VERBOSE_DEBUGGING
+ if (aic7xxx_verbose > 0xffff)
+ printk(INFO_LEAD "Building SDTR command.\n", p->host_no,
+ CTL_OF_CMD(cmd));
+#endif
+ }
+#endif
}
hscb->target_channel_lun = ((cmd->target << 4) & 0xF0) |
((cmd->channel & 0x01) << 3) | (cmd->lun & 0x07);
@@ -8352,19 +9813,26 @@
sg = (struct scatterlist *)cmd->request_buffer;
scb->sg_length = 0;
+ /*
+ * Copy the segments into the SG array. NOTE!!! - We used to
+ * have the first entry both in the data_pointer area and the first
+ * SG element. That has changed somewhat. We still have the first
+ * entry in both places, but now we download the address of
+ * scb->sg_list[1] instead of 0 to the sg pointer in the hscb.
+ */
for (i = 0; i < cmd->use_sg; i++)
{
scb->sg_list[i].address = cpu_to_le32(VIRT_TO_BUS(sg[i].address));
scb->sg_list[i].length = cpu_to_le32(sg[i].length);
scb->sg_length += sg[i].length;
}
- hscb->SG_list_pointer = cpu_to_le32(VIRT_TO_BUS(scb->sg_list));
- hscb->SG_segment_count = cmd->use_sg;
- scb->sg_count = cmd->use_sg;
-
/* Copy the first SG into the data pointer area. */
hscb->data_pointer = scb->sg_list[0].address;
hscb->data_count = scb->sg_list[0].length;
+ scb->sg_count = cmd->use_sg;
+ hscb->SG_segment_count = cmd->use_sg;
+ hscb->SG_list_pointer = cpu_to_le32(VIRT_TO_BUS(&scb->sg_list[1]));
+
}
else
{
@@ -8389,6 +9857,12 @@
hscb->data_pointer = 0;
}
}
+#ifdef AIC7XXX_VERBOSE_DEBUGGING
+ if((cmd->cmnd[0] == TEST_UNIT_READY) && (aic7xxx_verbose & VERBOSE_PROBE2))
+ {
+ aic7xxx_print_scb(p, scb);
+ }
+#endif
}
/*+F*************************************************************************
@@ -8403,7 +9877,9 @@
{
struct aic7xxx_host *p;
struct aic7xxx_scb *scb;
+#ifdef AIC7XXX_VERBOSE_DEBUGGING
int tindex = TARGET_INDEX(cmd);
+#endif
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,1,95)
unsigned long cpu_flags = 0;
#endif
@@ -8412,18 +9888,22 @@
/*
* Check to see if channel was scanned.
*/
+
+#ifdef AIC7XXX_VERBOSE_DEBUGGING
if (!(p->flags & AHC_A_SCANNED) && (cmd->channel == 0))
{
- printk(INFO_LEAD "Scanning channel for devices.\n",
- p->host_no, 0, -1, -1);
+ if (aic7xxx_verbose & VERBOSE_PROBE2)
+ printk(INFO_LEAD "Scanning channel for devices.\n",
+ p->host_no, 0, -1, -1);
p->flags |= AHC_A_SCANNED;
}
else
{
if (!(p->flags & AHC_B_SCANNED) && (cmd->channel == 1))
{
- printk(INFO_LEAD "Scanning channel for devices.\n",
- p->host_no, 1, -1, -1);
+ if (aic7xxx_verbose & VERBOSE_PROBE2)
+ printk(INFO_LEAD "Scanning channel for devices.\n",
+ p->host_no, 1, -1, -1);
p->flags |= AHC_B_SCANNED;
}
}
@@ -8437,12 +9917,25 @@
if ( p->dev_active_cmds[tindex] > 220 )
p->dev_active_cmds[tindex] = 0;
}
- DRIVER_LOCK
- scb = aic7xxx_allocate_scb(p, FALSE);
- DRIVER_UNLOCK
+#endif
+
+ scb = scbq_remove_head(&p->scb_data->free_scbs);
+ if (scb == NULL)
+ {
+ DRIVER_LOCK
+ aic7xxx_allocate_scb(p);
+ DRIVER_UNLOCK
+ scb = scbq_remove_head(&p->scb_data->free_scbs);
+ }
if (scb == NULL)
{
- panic("(scsi%d) aic7xxx_queue:Couldn't get a free SCB.\n", p->host_no);
+ printk(WARN_LEAD "Couldn't get a free SCB.\n", p->host_no,
+ CTL_OF_CMD(cmd));
+ cmd->result = (DID_BUS_BUSY << 16);
+ DRIVER_LOCK
+ aic7xxx_queue_cmd_complete(p, cmd);
+ DRIVER_UNLOCK
+ return 0;
}
else
{
@@ -8461,23 +9954,16 @@
* the SCB to the sequencer and watch the fun begin.
*/
cmd->scsi_done = fn;
+ cmd->result = DID_OK;
+ memset(cmd->sense_buffer, 0, sizeof(cmd->sense_buffer));
aic7xxx_error(cmd) = DID_OK;
aic7xxx_status(cmd) = 0;
- cmd->result = 0;
cmd->host_scribble = NULL;
- memset(&cmd->sense_buffer[0], 0, sizeof(cmd->sense_buffer));
scb->flags |= SCB_ACTIVE | SCB_WAITINGQ;
DRIVER_LOCK
- if (p->delayed_scbs[tindex].head != NULL)
- {
- scbq_insert_tail(&p->delayed_scbs[tindex], scb);
- }
- else
- {
- scbq_insert_tail(&p->waiting_scbs, scb);
- }
+ scbq_insert_tail(&p->waiting_scbs, scb);
if ( (p->flags & (AHC_IN_ISR | AHC_IN_ABORT | AHC_IN_RESET)) == 0)
{
aic7xxx_run_waiting_queues(p);
@@ -8665,7 +10151,10 @@
printk(INFO_LEAD "Queueing device reset "
"command.\n", p->host_no, CTL_OF_SCB(scb));
p->qinfifo[p->qinfifonext++] = scb->hscb->tag;
- aic_outb(p, p->qinfifonext, KERNEL_QINPOS);
+ if (p->features & AHC_QUEUE_REGS)
+ aic_outb(p, p->qinfifonext, HNSCB_QOFF);
+ else
+ aic_outb(p, p->qinfifonext, KERNEL_QINPOS);
scb->flags |= SCB_QUEUED_ABORT;
result = SCSI_RESET_PENDING;
}
@@ -8686,30 +10175,142 @@
* Abort the current SCSI command(s).
*-F*************************************************************************/
void
-aic7xxx_panic_abort(struct aic7xxx_host *p)
+aic7xxx_panic_abort(struct aic7xxx_host *p, Scsi_Cmnd *cmd)
{
- int i;
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,1,0)
+ int i, mask, found, need_tag;
+ struct aic7xxx_scb *scb;
+ unsigned char qinpos, hscbp;
+
+ found = FALSE;
+#endif
- printk("aic7xxx driver version %s\n", AIC7XXX_C_VERSION);
+ printk("aic7xxx driver version %s/%s\n", AIC7XXX_C_VERSION,
+ UTS_RELEASE);
printk("Controller type:\n %s\n", board_names[p->board_name_index]);
+ printk("p->flags=0x%x, p->chip=0x%x, p->features=0x%x, "
+ "sequencer %s paused\n",
+ p->flags, p->chip, p->features,
+ (aic_inb(p, HCNTRL) & PAUSE) ? "is" : "isn't" );
+ pause_sequencer(p);
+ disable_irq(p->irq);
+ aic7xxx_print_card(p);
+ aic7xxx_print_scratch_ram(p);
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,1,0)
for(i=0; i<MAX_TARGETS; i++)
{
if(p->dev_flags[i] & DEVICE_PRESENT)
{
- printk(INFO_LEAD "dev_flags=0x%x, WDTR:%s, SDTR:%s, q_depth=%d:%d\n",
+ mask = (0x01 << i);
+ printk(INFO_LEAD "dev_flags=0x%x, WDTR:%c/%c/%c, SDTR:%c/%c/%c,"
+ " q_depth=%d:%d:%d\n",
p->host_no, 0, i, 0, p->dev_flags[i],
- (p->needwdtr_copy & (1 << i)) ? "Yes" : "No",
- (p->needsdtr_copy & (1 << i)) ? "Yes" : "No",
+ (p->wdtr_pending & mask) ? 'Y' : 'N',
+ (p->needwdtr & mask) ? 'Y' : 'N',
+ (p->needwdtr_copy & mask) ? 'Y' : 'N',
+ (p->sdtr_pending & mask) ? 'Y' : 'N',
+ (p->needsdtr & mask) ? 'Y' : 'N',
+ (p->needsdtr_copy & mask) ? 'Y' : 'N',
+ p->dev_active_cmds[i],
p->dev_max_queue_depth[i], p->dev_mid_level_queue_depth[i]);
+ printk(INFO_LEAD "targ_scsirate=0x%x", p->host_no, 0, i, 0,
+ aic_inb(p, TARG_SCSIRATE + i));
+ if (p->features & AHC_ULTRA2)
+ printk(", targ_offset=%d", aic_inb(p, TARG_OFFSET + i));
+ printk("\n");
}
}
- printk("SIMODE0=0x%x, SIMODE1=0x%x, SSTAT0=0x%x, SSTAT1=0x%x, INTSTAT=0x%x\n",
- aic_inb(p, SIMODE0), aic_inb(p, SIMODE1), aic_inb(p, SSTAT0),
- aic_inb(p, SSTAT1), aic_inb(p, INTSTAT) );
- printk("p->flags=0x%x, p->type=0x%x, sequencer %s paused\n",
- p->flags, p->type,
- (aic_inb(p, HCNTRL) & PAUSE) ? "is" : "isn't" );
- panic("Stopping to debug\n");
+ /*
+ * Search for this command and see if we can't track it down, it's the
+ * one causing the timeout. Print out this command first, then all other
+ * active commands afterwords.
+ */
+ need_tag = -1;
+ if ( cmd )
+ {
+ scb = p->scb_data->scb_array[aic7xxx_position(cmd)];
+ if ( (scb->flags & SCB_ACTIVE) && (scb->cmd == cmd) )
+ {
+ printk("Timed out command is scb #%d:\n", scb->hscb->tag);
+ printk("Tag%d: flags=0x%x, control=0x%x, TCL=0x%x, %s\n", scb->hscb->tag,
+ scb->flags, scb->hscb->control, scb->hscb->target_channel_lun,
+ (scb->flags & SCB_WAITINGQ) ? "WAITINGQ" : "Sent" );
+ need_tag = scb->hscb->tag;
+ if (scb->flags & SCB_WAITINGQ) found=TRUE;
+ }
+ }
+ printk("QINFIFO: (TAG) ");
+ qinpos = aic_inb(p, QINPOS);
+ while ( qinpos != p->qinfifonext )
+ {
+ if (p->qinfifo[qinpos] == need_tag)
+ found=TRUE;
+ printk("%d ", p->qinfifo[qinpos++]);
+ }
+ printk("\n");
+ printk("Current SCB: (SCBPTR/TAG/CONTROL) %d/%d/0x%x\n", aic_inb(p, SCBPTR),
+ aic_inb(p, SCB_TAG), aic_inb(p, SCB_CONTROL) );
+ if (aic_inb(p, SCB_TAG) == need_tag) found=TRUE;
+ printk("WAITING_SCBS: (SCBPTR/TAG/CONTROL) %d->",
+ hscbp = aic_inb(p, WAITING_SCBH));
+ while (hscbp != SCB_LIST_NULL)
+ {
+ aic_outb(p, hscbp, SCBPTR);
+ printk("%d/%d/0x%x ", hscbp, aic_inb(p, SCB_TAG), aic_inb(p, SCB_CONTROL));
+ hscbp = aic_inb(p, SCB_NEXT);
+ if (aic_inb(p, SCB_TAG) == need_tag) found=TRUE;
+ }
+ printk("\n");
+ printk("DISCONNECTED_SCBS: (SCBPTR/TAG/CONTROL) %d->",
+ hscbp = aic_inb(p, DISCONNECTED_SCBH));
+ while (hscbp != SCB_LIST_NULL)
+ {
+ aic_outb(p, hscbp, SCBPTR);
+ printk("%d/%d/0x%x ", hscbp, aic_inb(p, SCB_TAG), aic_inb(p, SCB_CONTROL));
+ hscbp = aic_inb(p, SCB_NEXT);
+ if (aic_inb(p, SCB_TAG) == need_tag) found=TRUE;
+ }
+ printk("\n");
+ printk("FREE_SCBS: (SCBPTR/TAG/CONTROL) %d->",
+ hscbp = aic_inb(p, FREE_SCBH));
+ while (hscbp != SCB_LIST_NULL)
+ {
+ aic_outb(p, hscbp, SCBPTR);
+ printk("%d/%d/0x%x ", hscbp, aic_inb(p, SCB_TAG), aic_inb(p, SCB_CONTROL));
+ hscbp = aic_inb(p, SCB_NEXT);
+ }
+ printk("\n");
+
+ if (found == FALSE)
+ {
+ /*
+ * We haven't found the offending SCB yet, and it should be around
+ * somewhere, so go look for it in the cards SCBs.
+ */
+ printk("SCBPTR CONTROL TAG PREV NEXT\n");
+ for(i=0; i<p->scb_data->maxhscbs; i++)
+ {
+ aic_outb(p, i, SCBPTR);
+ printk(" %3d %02x %02x %02x %02x\n", i,
+ aic_inb(p, SCB_CONTROL), aic_inb(p, SCB_TAG),
+ aic_inb(p, SCB_PREV), aic_inb(p, SCB_NEXT));
+ }
+ }
+
+
+ for (i=0; i < p->scb_data->numscbs; i++)
+ {
+ scb = p->scb_data->scb_array[i];
+ if ( (scb->flags & SCB_ACTIVE) && (scb->cmd != cmd) )
+ {
+ printk("Tag%d: flags=0x%x, control=0x%x, TCL=0x%x, %s\n", scb->hscb->tag,
+ scb->flags, scb->hscb->control, scb->hscb->target_channel_lun,
+ (scb->flags & SCB_WAITINGQ) ? "WAITINGQ" : "Sent" );
+ }
+ }
+#endif
+ sti();
+ for(;;) barrier();
}
/*+F*************************************************************************
@@ -8743,7 +10344,7 @@
* code.
*/
if (aic7xxx_panic_on_abort)
- aic7xxx_panic_abort(p);
+ aic7xxx_panic_abort(p, cmd);
DRIVER_LOCK
@@ -8798,7 +10399,7 @@
p->completeq.head = (Scsi_Cmnd *)cmd_next->host_scribble;
else
cmd_prev->host_scribble = cmd_next->host_scribble;
- cmd_next->done(cmd_next);
+ cmd_next->scsi_done(cmd_next);
unpause_sequencer(p, FALSE);
DRIVER_UNLOCK
return(SCSI_ABORT_NOT_RUNNING); /* It's already back as a successful
@@ -8822,7 +10423,12 @@
* command held by the scb pointer and is a valid abort request.
* Now, we just have to figure out what to do from here. Current plan is:
* if we have already been here on this command, escalate to a reset
- * if scb is on waiting list or QINFIFO, send it back as aborted
+ * if scb is on waiting list or QINFIFO, send it back as aborted, but
+ * we also need to be aware of the possibility that we could be using
+ * a faked negotiation command that is holding this command up, if
+ * so we need to take care of that command instead, which means we
+ * would then treat this one like it was sitting around disconnected
+ * instead.
* if scb is on WAITING_SCB list in sequencer, free scb and send back
* if scb is disconnected and not completed, abort with abort message
* if scb is currently running, then it may be causing the bus to hang
@@ -8902,18 +10508,55 @@
if ((found == 0) && (scb->flags & SCB_WAITINGQ))
{
- int tindex = TARGET_INDEX(cmd);
-
- if (aic7xxx_verbose & VERBOSE_ABORT_PROCESS)
- printk(INFO_LEAD "SCB found on waiting list and "
- "aborted.\n", p->host_no, CTL_OF_SCB(scb));
- scbq_remove(&p->waiting_scbs, scb);
- scbq_remove(&p->delayed_scbs[tindex], scb);
- p->dev_active_cmds[tindex]++;
- p->activescbs++;
- scb->flags &= ~(SCB_WAITINGQ | SCB_ACTIVE);
- scb->flags |= SCB_ABORT | SCB_QUEUED_FOR_DONE;
+ int tindex = TARGET_INDEX(cmd);
+#ifdef AIC7XXX_FAKE_NEGOTIATION_CMDS
+ unsigned short mask;
+
+ mask = (1 << tindex);
+
+ if (p->wdtr_pending & mask)
+ {
+ if (p->dev_wdtr_cmnd[tindex]->next != cmd)
+ found = 1;
+ else
+ found = 0;
+ }
+ else if (p->sdtr_pending & mask)
+ {
+ if (p->dev_sdtr_cmnd[tindex]->next != cmd)
+ found = 1;
+ else
+ found = 0;
+ }
+ else
+ {
found = 1;
+ }
+ if (found == 0)
+ {
+ /*
+ * OK..this means the command we are currently getting an abort
+ * for has an outstanding negotiation command in front of it.
+ * We don't really have a way to tie back into the negotiation
+ * commands, so we just send this back as pending, then it
+ * will get reset in 2 seconds.
+ */
+ unpause_sequencer(p, TRUE);
+ scb->flags |= SCB_ABORT;
+ DRIVER_UNLOCK
+ return(SCSI_ABORT_PENDING);
+ }
+#endif
+ if (aic7xxx_verbose & VERBOSE_ABORT_PROCESS)
+ printk(INFO_LEAD "SCB found on waiting list and "
+ "aborted.\n", p->host_no, CTL_OF_SCB(scb));
+ scbq_remove(&p->waiting_scbs, scb);
+ scbq_remove(&p->delayed_scbs[tindex], scb);
+ p->dev_active_cmds[tindex]++;
+ p->activescbs++;
+ scb->flags &= ~(SCB_WAITINGQ | SCB_ACTIVE);
+ scb->flags |= SCB_ABORT | SCB_QUEUED_FOR_DONE;
+ found = 1;
}
/*
@@ -9006,7 +10649,10 @@
printk(INFO_LEAD "SCB disconnected. Queueing Abort"
" SCB.\n", p->host_no, CTL_OF_SCB(scb));
p->qinfifo[p->qinfifonext++] = scb->hscb->tag;
- aic_outb(p, p->qinfifonext, KERNEL_QINPOS);
+ if (p->features & AHC_QUEUE_REGS)
+ aic_outb(p, p->qinfifonext, HNSCB_QOFF);
+ else
+ aic_outb(p, p->qinfifonext, KERNEL_QINPOS);
}
if (found)
{
@@ -9083,7 +10729,7 @@
* code.
*/
if (aic7xxx_panic_on_abort)
- aic7xxx_panic_abort(p);
+ aic7xxx_panic_abort(p, cmd);
DRIVER_LOCK
@@ -9203,7 +10849,7 @@
"other action has failed.\n", p->host_no, CTL_OF_CMD(cmd));
action = BUS_RESET;
}
- if ( (action & BUS_RESET) && !(p->type & AHC_TWIN) )
+ if ( (action & BUS_RESET) && !(p->features & AHC_TWIN) )
{
action = HOST_RESET;
}
@@ -9270,16 +10916,11 @@
p->reset_start = jiffies;
p->flags |= AHC_IN_RESET;
aic7xxx_reset_channel(p, cmd->channel, TRUE);
- if ( (p->type & AHC_TWIN) && (action & HOST_RESET) )
+ if ( (p->features & AHC_TWIN) && (action & HOST_RESET) )
{
aic7xxx_reset_channel(p, cmd->channel ^ 0x01, TRUE);
restart_sequencer(p);
}
- if (scb == NULL)
- {
- cmd->result = DID_RESET << 16;
- cmd->done(cmd);
- }
p->last_reset = jiffies;
if (action != HOST_RESET)
result = SCSI_RESET_SUCCESS | SCSI_RESET_BUS_RESET;
@@ -9391,6 +11032,207 @@
aic7xxx_free(p);
return(0);
}
+
+/*+F*************************************************************************
+ * Function:
+ * aic7xxx_print_card
+ *
+ * Description:
+ * Print out all of the control registers on the card
+ *
+ * NOTE: This function is not yet safe for use on the VLB and EISA
+ * controllers, so it isn't used on those controllers at all.
+ *-F*************************************************************************/
+static void
+aic7xxx_print_card(struct aic7xxx_host *p)
+{
+ int i, j, k, chip;
+ static struct register_ranges {
+ int num_ranges;
+ int range_val[32];
+ } cards_ds[] = {
+ { 0, {0,} }, /* none */
+ {10, {0x00, 0x05, 0x08, 0x11, 0x18, 0x19, 0x1f, 0x1f, 0x60, 0x60, /*7771*/
+ 0x62, 0x66, 0x80, 0x8e, 0x90, 0x95, 0x97, 0x97, 0x9b, 0x9f} },
+ { 9, {0x00, 0x05, 0x08, 0x11, 0x18, 0x1f, 0x60, 0x60, 0x62, 0x66, /*7850*/
+ 0x80, 0x8e, 0x90, 0x95, 0x97, 0x97, 0x9a, 0x9f} },
+ { 9, {0x00, 0x05, 0x08, 0x11, 0x18, 0x1f, 0x60, 0x60, 0x62, 0x66, /*7860*/
+ 0x80, 0x8e, 0x90, 0x95, 0x97, 0x97, 0x9a, 0x9f} },
+ {10, {0x00, 0x05, 0x08, 0x11, 0x18, 0x19, 0x1c, 0x1f, 0x60, 0x60, /*7870*/
+ 0x62, 0x66, 0x80, 0x8e, 0x90, 0x95, 0x97, 0x97, 0x9a, 0x9f} },
+ {10, {0x00, 0x05, 0x08, 0x11, 0x18, 0x1a, 0x1c, 0x1f, 0x60, 0x60, /*7880*/
+ 0x62, 0x66, 0x80, 0x8e, 0x90, 0x95, 0x97, 0x97, 0x9a, 0x9f} },
+ {16, {0x00, 0x05, 0x08, 0x11, 0x18, 0x1f, 0x60, 0x60, 0x62, 0x66, /*7890*/
+ 0x84, 0x8e, 0x90, 0x95, 0x97, 0x97, 0x9a, 0x9a, 0x9f, 0x9f,
+ 0xe0, 0xf1, 0xf4, 0xf4, 0xf6, 0xf6, 0xf8, 0xf8, 0xfa, 0xfc,
+ 0xfe, 0xff} },
+ {12, {0x00, 0x05, 0x08, 0x11, 0x18, 0x19, 0x1b, 0x1f, 0x60, 0x60, /*7895*/
+ 0x62, 0x66, 0x80, 0x8e, 0x90, 0x95, 0x97, 0x97, 0x9a, 0x9a,
+ 0x9f, 0x9f, 0xe0, 0xf1} },
+ {16, {0x00, 0x05, 0x08, 0x11, 0x18, 0x1f, 0x60, 0x60, 0x62, 0x66, /*7896*/
+ 0x84, 0x8e, 0x90, 0x95, 0x97, 0x97, 0x9a, 0x9a, 0x9f, 0x9f,
+ 0xe0, 0xf1, 0xf4, 0xf4, 0xf6, 0xf6, 0xf8, 0xf8, 0xfa, 0xfc,
+ 0xfe, 0xff} },
+ };
+#ifdef CONFIG_PCI
+ static struct register_ranges cards_ns[] = {
+ { 0, {0,} }, /* none */
+ { 0, {0,} }, /* 7771 */
+ { 7, {0x04, 0x08, 0x0c, 0x0e, 0x10, 0x17, 0x28, 0x2b, 0x30, 0x33,
+ 0x3c, 0x41, 0x43, 0x47} },
+ { 7, {0x04, 0x08, 0x0c, 0x0e, 0x10, 0x17, 0x28, 0x2b, 0x30, 0x33,
+ 0x3c, 0x41, 0x43, 0x47} },
+ { 5, {0x04, 0x08, 0x0c, 0x0e, 0x10, 0x17, 0x30, 0x33, 0x3c, 0x41} },
+ { 5, {0x04, 0x08, 0x0c, 0x0e, 0x10, 0x17, 0x30, 0x34, 0x3c, 0x47} },
+ { 5, {0x04, 0x08, 0x0c, 0x1b, 0x30, 0x34, 0x3c, 0x43, 0xdc, 0xe3} },
+ { 6, {0x04, 0x08, 0x0c, 0x0e, 0x10, 0x17, 0x30, 0x34, 0x3c, 0x47,
+ 0xdc, 0xe3} },
+ { 6, {0x04, 0x08, 0x0c, 0x1b, 0x30, 0x34, 0x3c, 0x43, 0xdc, 0xe3,
+ 0xff, 0xff} }
+ };
+#endif
+ chip = p->chip & AHC_CHIPID_MASK;
+ /*
+ * Let's run through the PCI space first....
+ */
+ printk("%s at ",
+ board_names[p->board_name_index]);
+ switch(p->chip & ~AHC_CHIPID_MASK)
+ {
+ case AHC_VL:
+ printk("VLB Slot %d.\n", p->pci_device_fn);
+ break;
+ case AHC_EISA:
+ printk("EISA Slot %d.\n", p->pci_device_fn);
+ break;
+ case AHC_PCI:
+ default:
+ printk("PCI %d/%d.\n", PCI_SLOT(p->pci_device_fn),
+ PCI_FUNC(p->pci_device_fn));
+ break;
+ }
+
+#ifdef CONFIG_PCI
+ {
+ unsigned char temp;
+
+ printk("PCI Dump:\n");
+ k=0;
+ for(i=0; i<cards_ns[chip].num_ranges; i++)
+ {
+ for(j = cards_ns[chip].range_val[ i * 2 ];
+ j <= cards_ns[chip].range_val[ i * 2 + 1 ] ;
+ j++)
+ {
+#if LINUX_VERSION_CODE > KERNEL_VERSION(2,1,92)
+ pci_read_config_byte(p->pdev, j, &temp);
+#else
+ pcibios_read_config_byte(p->pci_bus, p->pci_device_fn, j, &temp);
+#endif
+ printk("%02x:%02x ", j, temp);
+ if(++k == 13)
+ {
+ printk("\n");
+ k = 0;
+ }
+ }
+ }
+ }
+ if(k != 0)
+ printk("\n");
+#endif /* CONFIG_PCI */
+
+ /*
+ * Now the registers on the card....
+ */
+ printk("Card Dump:\n");
+ k = 0;
+ for(i=0; i<cards_ds[chip].num_ranges; i++)
+ {
+ for(j = cards_ds[chip].range_val[ i * 2 ];
+ j <= cards_ds[chip].range_val[ i * 2 + 1 ] ;
+ j++)
+ {
+ printk("%02x:%02x ", j, aic_inb(p, j));
+ if(++k == 13)
+ {
+ printk("\n");
+ k=0;
+ }
+ }
+ }
+ if(k != 0)
+ printk("\n");
+ if (p->flags & AHC_SEEPROM_FOUND)
+ {
+ unsigned short *sc1;
+ sc1 = (unsigned short *)&p->sc;
+
+ printk("SEEPROM dump.\n");
+ for(i=1; i<=32; i++)
+ {
+ printk("0x%04x", sc1[i-1]);
+ if ( (i % 8) == 0 )
+ printk("\n");
+ else
+ printk(" ");
+ }
+ }
+
+ /*
+ * If this was an Ultra2 controller, then we just hosed the card in terms
+ * of the QUEUE REGS. This function is only called at init time or by
+ * the panic_abort function, so it's safe to assume a generic init time
+ * setting here
+ */
+
+ if(p->features & AHC_QUEUE_REGS)
+ {
+ aic_outb(p, 0, SDSCB_QOFF);
+ aic_outb(p, 0, SNSCB_QOFF);
+ aic_outb(p, 0, HNSCB_QOFF);
+ }
+
+}
+
+/*+F*************************************************************************
+ * Function:
+ * aic7xxx_print_scratch_ram
+ *
+ * Description:
+ * Print out the scratch RAM values on the card.
+ *-F*************************************************************************/
+static void
+aic7xxx_print_scratch_ram(struct aic7xxx_host *p)
+{
+ int i, k;
+
+ k = 0;
+ printk("Scratch RAM:\n");
+ for(i = SRAM_BASE; i < SEQCTL; i++)
+ {
+ printk("%02x:%02x ", i, aic_inb(p, i));
+ if(++k == 13)
+ {
+ printk("\n");
+ k=0;
+ }
+ }
+ if (p->features & AHC_MORE_SRAM)
+ {
+ for(i = TARG_OFFSET; i < 0x80; i++)
+ {
+ printk("%02x:%02x ", i, aic_inb(p, i));
+ if(++k == 13)
+ {
+ printk("\n");
+ k=0;
+ }
+ }
+ }
+ printk("\n");
+}
+
#include "aic7xxx_proc.c"
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TCL-scripts by Sam Shen, slshen@lbl.gov