mirror of
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Add support for 16 targets on WIDE SCSI bus.
This seems to work fine on my 53c810, but really should be tested on a 53c825 with at least one target set to an ID >= 8. The script is now copied to memory mapped using vm_page_alloc_contig(), since it has to be physically contigous. This must be changed, if the driver is converted into a loadable module ! Two of the probe messages are suppressed, unless "bootverbose" is set.
This commit is contained in:
Stefan Eßer
parent
defdcfcfb3
commit
3a5a6263e3
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=10605
209
sys/pci/ncr.c
209
sys/pci/ncr.c
@ -1,6 +1,6 @@
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/**************************************************************************
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**
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** $Id: ncr.c,v 1.42 1995/08/23 23:03:25 gibbs Exp $
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** $Id: ncr.c,v 1.43 1995/09/05 22:37:59 se Exp $
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**
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** Device driver for the NCR 53C810 PCI-SCSI-Controller.
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**
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@ -44,7 +44,7 @@
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***************************************************************************
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*/
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#define __NCR_C__ "pl22 95/07/07"
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#define NCR_DATE "pl23 95/09/07"
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#define NCR_VERSION (2)
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#define MAX_UNITS (16)
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@ -111,7 +111,7 @@
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** #7 .. is myself.
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*/
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#define MAX_TARGET (7)
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#define MAX_TARGET (16)
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/*
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** Number of logic units supported by the driver.
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@ -125,10 +125,11 @@
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/*
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** The maximum number of jobs scheduled for starting.
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** There should be one slot per target, and one slot
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** for each tag of each target.
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** for each tag of each target in use.
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** The calculation below is actually quite silly ...
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*/
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#define MAX_START (7 * SCSI_NCR_MAX_TAGS)
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#define MAX_START (MAX_TARGET + 7 * SCSI_NCR_MAX_TAGS)
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/*
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** The maximum number of segments a transfer is split into.
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@ -170,8 +171,12 @@
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#include <sys/kernel.h>
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#ifndef __NetBSD__
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#include <machine/clock.h>
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#include <machine/cpu.h> /* bootverbose */
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#else
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#define bootverbose 1
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#endif
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#include <vm/vm.h>
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#include <vm/vm_extern.h>
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#endif /* KERNEL */
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@ -1188,7 +1193,7 @@ static void ncr_negotiate (struct ncb* np, struct tcb* tp);
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static void ncr_opennings (ncb_p np, lcb_p lp, struct scsi_xfer * xp);
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static void ncb_profile (ncb_p np, ccb_p cp);
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static void ncr_script_copy_and_bind
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(ncb_p np);
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(struct script * script, ncb_p np);
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static void ncr_script_fill (struct script * scr);
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static int ncr_scatter (struct dsb* phys,u_long vaddr,u_long datalen);
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static void ncr_setmaxtags (tcb_p tp, u_long usrtags);
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@ -1223,13 +1228,13 @@ static void ncr_attach (pcici_t tag, int unit);
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static char ident[] =
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"\n$Id: ncr.c,v 1.42 1995/08/23 23:03:25 gibbs Exp $\n";
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"\n$Id: ncr.c,v 1.43 1995/09/05 22:37:59 se Exp $\n";
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u_long ncr_version = NCR_VERSION
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+ (u_long) sizeof (struct ncb)
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* (u_long) sizeof (struct ccb)
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* (u_long) sizeof (struct lcb)
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* (u_long) sizeof (struct tcb);
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u_long ncr_version = NCR_VERSION * 11
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+ (u_long) sizeof (struct ncb) * 7
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+ (u_long) sizeof (struct ccb) * 5
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+ (u_long) sizeof (struct lcb) * 3
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+ (u_long) sizeof (struct tcb) * 2;
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#ifdef KERNEL
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@ -2937,57 +2942,26 @@ void ncr_script_fill (struct script * scr)
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**==========================================================
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*/
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static ncrcmd *src = (ncrcmd *)&script0;
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static void ncr_script_copy_and_bind (ncb_p np)
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static void ncr_script_copy_and_bind (struct script *script, ncb_p np)
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{
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ncrcmd opcode, new, old;
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ncrcmd *dst, *start, *end;
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int relocs;
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u_long p_script;
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ncrcmd *src, *dst, *start, *end;
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int relocs;
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/*
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* Test whether last byte of script is at the right
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* PHYSICAL address, since the NCR uses phys. addresses only.
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* Assumes that the script fits into two 4KB pages ...
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*/
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assert (sizeof(struct script) <= 8192);
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np->script = (struct script*) vm_page_alloc_contig
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(round_page(sizeof (struct script)), 0x100000, 0xffffffff, PAGE_SIZE);
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while ((p_script = vtophys (src)) + sizeof (struct script) !=
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vtophys ((char *)src + sizeof (struct script))) {
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np->p_script = vtophys(np->script);
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struct script *newsrc = (struct script *)
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malloc (sizeof (struct script), M_DEVBUF, M_WAITOK);
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memcpy (newsrc, src, sizeof(struct script));
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src = (ncrcmd *) newsrc;
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printf ("%s: NCR script not physically contigous, retrying\n",
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ncr_name(np));
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}
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np->script = (struct script*) src;
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np->p_script = p_script;
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dst = (ncrcmd *) malloc (sizeof (struct script), M_DEVBUF, M_WAITOK);
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/*
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* Copy the script to keep an unmodified version
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* to bind for another NCR chip, if present.
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*/
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memcpy (dst, src, sizeof(struct script));
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/*
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* Patch the "src" of the memcpy to become the script to execute.
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* The copy in the malloc()ed memory at "dst" will be the src of
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* the script for the next NCR, if there are multiple chips.
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*/
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src = script->start;
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dst = np->script->start;
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start = src;
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end = src + (sizeof(struct script) / 4);
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end = src + (sizeof (struct script) / 4);
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while (src < end) {
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opcode = *src++;
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*dst++ = opcode = *src++;
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/*
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** If we forget to change the length
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@ -3055,7 +3029,7 @@ static void ncr_script_copy_and_bind (ncb_p np)
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if (relocs) {
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while (relocs--) {
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old = *src;
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old = *src++;
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switch (old & RELOC_MASK) {
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case RELOC_REGISTER:
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@ -3079,17 +3053,12 @@ static void ncr_script_copy_and_bind (ncb_p np)
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break;
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}
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*src++ = new;
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*dst++ = new;
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}
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} else
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src++;
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*dst++ = *src++;
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};
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/*
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* next time use the (unmodified) copy of the script as "src"
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*/
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src = dst;
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}
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/*==========================================================
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@ -3305,7 +3274,7 @@ static void ncr_attach (pcici_t config_id, int unit)
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*/
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ncr_script_fill (&script0);
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ncr_script_copy_and_bind (np);
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ncr_script_copy_and_bind (&script0, np);
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/*
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** init data structure
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@ -3341,6 +3310,7 @@ static void ncr_attach (pcici_t config_id, int unit)
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*/
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OUTB (nc_istat, SRST);
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DELAY (1000);
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OUTB (nc_istat, 0 );
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#ifdef NCR_DUMP_REG
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@ -3364,6 +3334,7 @@ static void ncr_attach (pcici_t config_id, int unit)
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*/
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OUTB (nc_istat, SRST);
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DELAY (1000);
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OUTB (nc_istat, 0 );
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#endif /* NCR_DUMP_REG */
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@ -3396,16 +3367,13 @@ static void ncr_attach (pcici_t config_id, int unit)
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DELAY (1000);
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/*
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** process the reset exception,
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** Process the reset exception,
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** if interrupts are not enabled yet.
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** than enable disconnects.
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** Then enable disconnects.
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*/
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ncr_exception (np);
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np->disc = 1;
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printf ("%s scanning for targets 0..%d (V%d " __NCR_C__ ")\n",
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ncr_name (np), MAX_TARGET-1, NCR_VERSION);
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/*
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** Now let the generic SCSI driver
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** look for the SCSI devices on the bus ..
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@ -3419,6 +3387,8 @@ static void ncr_attach (pcici_t config_id, int unit)
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np->sc_link.adapter_targ = np->myaddr;
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np->sc_link.adapter = &ncr_switch;
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np->sc_link.device = &ncr_dev;
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np->sc_link.flags = 0;
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np->sc_link.fordriver = 0;
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#ifdef __NetBSD__
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config_found(self, &np->sc_link, ncr_print);
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@ -3427,8 +3397,27 @@ static void ncr_attach (pcici_t config_id, int unit)
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scbus = scsi_alloc_bus();
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if(!scbus)
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return;
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/* XXX scbus->maxtarg should be adjusted based on bus width */
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scbus->adapter_link = &np->sc_link;
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if(np->maxwide)
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scbus->maxtarg = 15;
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if (bootverbose) {
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unsigned t_from = 0;
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unsigned t_to = scbus->maxtarg;
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unsigned myaddr = np->myaddr;
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char *txt_and = "";
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printf ("%s scanning for targets ", ncr_name (np));
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if (t_from < myaddr) {
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printf ("%d..%d ", t_from, myaddr -1);
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txt_and = "and ";
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}
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if (myaddr < t_to)
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printf ("%s%d..%d ", txt_and, myaddr +1, t_to);
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printf ("(V%d " NCR_DATE ")\n", NCR_VERSION);
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}
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scsi_attachdevs (scbus);
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scbus = NULL; /* Upper-level SCSI code owns this now */
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#else
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@ -4316,7 +4305,8 @@ void ncr_init (ncb_p np, char * msg, u_long code)
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** Reset chip.
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*/
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OUTB (nc_istat, SRST );
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OUTB (nc_istat, SRST);
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DELAY (1000);
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/*
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** Message.
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@ -4354,18 +4344,18 @@ void ncr_init (ncb_p np, char * msg, u_long code)
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burstlen = tbl[pci_max_burst_len];
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} else burstlen = 0xc0;
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OUTB (nc_istat, 0 ); /* Remove Reset, abort ... */
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OUTB (nc_istat, 0 ); /* Remove Reset, abort ... */
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OUTB (nc_scntl0, 0xca ); /* full arb., ena parity, par->ATN */
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OUTB (nc_scntl1, 0x00 ); /* odd parity, and remove CRST!! */
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OUTB (nc_scntl3, np->rv_scntl3);/* timing prescaler */
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OUTB (nc_scntl3, np->rv_scntl3);/* timing prescaler */
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OUTB (nc_scid , RRE|np->myaddr);/* host adapter SCSI address */
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OUTW (nc_respid, 1ul<<np->myaddr);/* id to respond to */
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OUTB (nc_istat , SIGP ); /* Signal Process */
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OUTW (nc_respid, 1ul<<np->myaddr);/* id to respond to */
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OUTB (nc_istat , SIGP ); /* Signal Process */
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OUTB (nc_dmode , burstlen); /* Burst length = 2 .. 16 transfers */
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OUTB (nc_dcntl , NOCOM ); /* no single step mode, protect SFBR*/
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OUTB (nc_ctest4, 0x08 ); /* enable master parity checking */
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OUTB (nc_stest2, EXT ); /* Extended Sreq/Sack filtering */
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OUTB (nc_stest3, TE ); /* TolerANT enable */
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OUTB (nc_stest3, TE ); /* TolerANT enable */
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OUTB (nc_stime0, 0xfb ); /* HTH = 1.6sec STO = 0.1 sec. */
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/*
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@ -4775,23 +4765,21 @@ static void ncr_timeout (ncb_p np)
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OUTB (nc_istat, SIGP);
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};
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if (np->latetime>10) {
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if (np->latetime>4) {
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/*
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** Although we tried to wakeup it,
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** the script processor didn't answer.
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** Although we tried to wake it up,
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** the script processor didn't respond.
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**
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** May be a target is hanging,
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** or another initator lets a tape device
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** rewind with disabled disconnect :-(
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** rewind with disconnect disabled :-(
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**
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** We won't accept that.
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*/
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printf ("%s: reset by timeout.\n", ncr_name (np));
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OUTB (nc_istat, SRST);
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OUTB (nc_istat, 0);
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if (INB (nc_sbcl) & CBSY)
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OUTB (nc_scntl1, CRST);
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ncr_init (np, NULL, HS_TIMEOUT);
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DELAY (1000);
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ncr_init (np, "ncr dead ?", HS_TIMEOUT);
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np->heartbeat = thistime;
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};
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@ -4921,7 +4909,7 @@ void ncr_exception (ncb_p np)
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*/
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if (sist & RST) {
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ncr_init (np, "scsi reset", HS_RESET);
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ncr_init (np, bootverbose ? "scsi reset" : NULL, HS_RESET);
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return;
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};
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@ -5029,32 +5017,25 @@ void ncr_exception (ncb_p np)
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dsp = (unsigned) INL (nc_dsp);
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dsa = (unsigned) INL (nc_dsa);
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script_ofs = dsp - (unsigned) np->p_script,
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script_ofs = dsp - vtophys(np->script);
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printf ("%s targ %d?: ERROR (%x:%x) (%x-%x-%x) (%x/%x) @ (%x:%08x).\n",
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ncr_name (np), INB (nc_ctest0)&7, dstat, sist,
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printf ("%s:%d: ERROR (%x:%x) (%x-%x-%x) (%x/%x) @ (%x:%08x).\n",
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ncr_name (np), INB (nc_ctest0)&0x0f, dstat, sist,
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INB (nc_socl), INB (nc_sbcl), INB (nc_sbdl),
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INB (nc_sxfer),INB (nc_scntl3), script_ofs,
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(unsigned) INL (nc_dbc));
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if (((script_ofs & 3) == 0) &&
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(unsigned)script_ofs < sizeof(struct script)) {
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printf ("\tscript cmd = %08x\n",
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*(ncrcmd *)((char*)np->script +script_ofs));
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}
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printf ("\treg:\t");
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for (i=0; i<16;i++)
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printf (" %x", ((u_char*)np->reg)[i]);
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printf (" %02x", ((u_char*)np->reg)[i]);
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printf (".\n");
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if (script_ofs < sizeof(*np->script))
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{
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u_long vpci;
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u_long vpc = ((u_long) np->script) + script_ofs;
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for (vpci = vpc; vpci >= 4; vpci -= 4);
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while (vpci <= vpc) {
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printf ("\tvirt.addr: 0x%08lx instr: 0x%08lx\n",
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vpci, *(ncrcmd *)(vpci));
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vpci += 4;
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}
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}
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/*----------------------------------------
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** clean up the dma fifo
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**----------------------------------------
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@ -5069,6 +5050,21 @@ void ncr_exception (ncb_p np)
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OUTB (nc_ctest3, CLF); /* clear dma fifo */
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}
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/*----------------------------------------
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** handshake timeout
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**----------------------------------------
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*/
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if (sist & HTH) {
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printf ("%s: handshake timeout\n", ncr_name(np));
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OUTB (nc_scntl1, CRST);
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DELAY (1000);
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OUTB (nc_scntl1, 0x00);
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OUTB (nc_scr0, HS_FAIL);
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OUTL (nc_dsp, vtophys(&np->script->cleanup));
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return;
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}
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/*----------------------------------------
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** unexpected disconnect
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**----------------------------------------
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@ -5107,8 +5103,8 @@ void ncr_exception (ncb_p np)
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ncr_name (np));
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return;
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};
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printf ("%s: target %d? doesn't release the bus.\n",
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ncr_name (np), INB (nc_ctest0)&7);
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printf ("%s: target %d doesn't release the bus.\n",
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ncr_name (np), INB (nc_ctest0)&0x0f);
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/*
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** return without restarting the NCR.
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** timeout will do the real work.
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@ -5338,7 +5334,7 @@ static void ncr_int_ma (ncb_p np)
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** log the information
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*/
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if (DEBUG_FLAGS & (DEBUG_TINY|DEBUG_PHASE)) {
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printf ("P%d%d ",cmd&7, sbcl&7);
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printf ("P%x%x ",cmd&7, sbcl&7);
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printf ("RL=%d D=%d SS0=%x ",
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(unsigned) rest, (unsigned) delta, ss0);
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};
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@ -5379,13 +5375,13 @@ static void ncr_int_ma (ncb_p np)
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if (cmd != (vdsp[0] >> 24)) {
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PRINT_ADDR(cp->xfer);
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printf ("internal error: cmd=%02x != %02x=(vdsp[0] >> 24)\n",
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cmd, vdsp[0] >> 24);
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(unsigned)cmd, (unsigned)vdsp[0] >> 24);
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return;
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}
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if (cmd & 0x06) {
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PRINT_ADDR(cp->xfer);
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printf ("phase change %d-%d %d@%x resid=%d.\n",
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printf ("phase change %x-%x %d@%08x resid=%d.\n",
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cmd&7, sbcl&7, (unsigned)olen,
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(unsigned)oadr, (unsigned)rest);
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|
||||
@ -5543,7 +5539,7 @@ void ncr_int_sir (ncb_p np)
|
||||
if (DEBUG_FLAGS & DEBUG_RESTART) {
|
||||
PRINT_ADDR(cp->xfer);
|
||||
printf ("in getcc reselect by t%d.\n",
|
||||
INB(nc_ssid)&7);
|
||||
INB(nc_ssid) & 0x0f);
|
||||
}
|
||||
|
||||
/*
|
||||
@ -6492,6 +6488,7 @@ static int ncr_snooptest (struct ncb* np)
|
||||
** Reset ncr chip
|
||||
*/
|
||||
OUTB (nc_istat, SRST);
|
||||
DELAY (1000);
|
||||
OUTB (nc_istat, 0 );
|
||||
/*
|
||||
** check for timeout
|
||||
|
||||
Loading…
Reference in New Issue
Block a user