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![Deepak Saxena](/assets/img/avatar_default.png)
Signed-off-by: Deepak Saxena <dsaxena@plexity.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
905 lines
25 KiB
C
905 lines
25 KiB
C
/* socal.c: Sparc SUNW,socal (SOC+) Fibre Channel Sbus adapter support.
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*
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* Copyright (C) 1998,1999 Jakub Jelinek (jj@ultra.linux.cz)
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*
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* Sources:
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* Fibre Channel Physical & Signaling Interface (FC-PH), dpANS, 1994
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* dpANS Fibre Channel Protocol for SCSI (X3.269-199X), Rev. 012, 1995
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* SOC+ Programming Guide 0.1
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* Fibre Channel Arbitrated Loop (FC-AL), dpANS rev. 4.5, 1995
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*
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* Supported hardware:
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* On-board SOC+ adapters of Ultra Enterprise servers and sun4d.
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*/
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static char *version =
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"socal.c: SOC+ driver v1.1 9/Feb/99 Jakub Jelinek (jj@ultra.linux.cz)\n";
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#include <linux/module.h>
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#include <linux/kernel.h>
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#include <linux/sched.h>
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#include <linux/types.h>
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#include <linux/fcntl.h>
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#include <linux/interrupt.h>
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#include <linux/ptrace.h>
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#include <linux/ioport.h>
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#include <linux/in.h>
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#include <linux/slab.h>
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#include <linux/string.h>
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#include <linux/init.h>
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#include <linux/bitops.h>
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#include <asm/system.h>
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#include <asm/io.h>
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#include <asm/dma.h>
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#include <linux/errno.h>
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#include <asm/byteorder.h>
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#include <asm/openprom.h>
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#include <asm/oplib.h>
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#include <asm/pgtable.h>
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#include <asm/irq.h>
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/* #define SOCALDEBUG */
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/* #define HAVE_SOCAL_UCODE */
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/* #define USE_64BIT_MODE */
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#include "fcp_impl.h"
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#include "socal.h"
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#ifdef HAVE_SOCAL_UCODE
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#include "socal_asm.h"
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#endif
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#define socal_printk printk ("socal%d: ", s->socal_no); printk
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#ifdef SOCALDEBUG
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#define SOD(x) socal_printk x;
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#else
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#define SOD(x)
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#endif
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#define for_each_socal(s) for (s = socals; s; s = s->next)
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struct socal *socals = NULL;
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static void socal_copy_from_xram(void *d, void __iomem *xram, long size)
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{
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u32 *dp = (u32 *) d;
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while (size) {
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*dp++ = sbus_readl(xram);
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xram += sizeof(u32);
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size -= sizeof(u32);
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}
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}
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static void socal_copy_to_xram(void __iomem *xram, void *s, long size)
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{
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u32 *sp = (u32 *) s;
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while (size) {
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u32 val = *sp++;
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sbus_writel(val, xram);
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xram += sizeof(u32);
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size -= sizeof(u32);
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}
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}
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#ifdef HAVE_SOCAL_UCODE
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static void socal_bzero(unsigned long xram, int size)
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{
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while (size) {
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sbus_writel(0, xram);
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xram += sizeof(u32);
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size -= sizeof(u32);
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}
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}
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#endif
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static inline void socal_disable(struct socal *s)
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{
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sbus_writel(0, s->regs + IMASK);
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sbus_writel(SOCAL_CMD_SOFT_RESET, s->regs + CMD);
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}
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static inline void socal_enable(struct socal *s)
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{
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SOD(("enable %08x\n", s->cfg))
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sbus_writel(0, s->regs + SAE);
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sbus_writel(s->cfg, s->regs + CFG);
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sbus_writel(SOCAL_CMD_RSP_QALL, s->regs + CMD);
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SOCAL_SETIMASK(s, SOCAL_IMASK_RSP_QALL | SOCAL_IMASK_SAE);
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SOD(("imask %08x %08x\n", s->imask, sbus_readl(s->regs + IMASK)));
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}
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static void socal_reset(fc_channel *fc)
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{
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socal_port *port = (socal_port *)fc;
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struct socal *s = port->s;
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/* FIXME */
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socal_disable(s);
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s->req[0].seqno = 1;
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s->req[1].seqno = 1;
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s->rsp[0].seqno = 1;
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s->rsp[1].seqno = 1;
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s->req[0].in = 0;
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s->req[1].in = 0;
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s->rsp[0].in = 0;
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s->rsp[1].in = 0;
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s->req[0].out = 0;
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s->req[1].out = 0;
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s->rsp[0].out = 0;
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s->rsp[1].out = 0;
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/* FIXME */
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socal_enable(s);
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}
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static inline void socal_solicited(struct socal *s, unsigned long qno)
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{
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socal_rsp *hwrsp;
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socal_cq *sw_cq;
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int token;
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int status;
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fc_channel *fc;
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sw_cq = &s->rsp[qno];
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/* Finally an improvement against old SOC :) */
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sw_cq->in = sbus_readb(s->regs + RESP + qno);
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SOD (("socal_solicited, %d packets arrived\n",
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(sw_cq->in - sw_cq->out) & sw_cq->last))
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for (;;) {
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hwrsp = (socal_rsp *)sw_cq->pool + sw_cq->out;
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SOD(("hwrsp %p out %d\n", hwrsp, sw_cq->out))
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#if defined(SOCALDEBUG) && 0
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{
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u32 *u = (u32 *)hwrsp;
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SOD(("%08x.%08x.%08x.%08x.%08x.%08x.%08x.%08x\n",
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u[0],u[1],u[2],u[3],u[4],u[5],u[6],u[7]))
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u += 8;
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SOD(("%08x.%08x.%08x.%08x.%08x.%08x.%08x.%08x\n",
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u[0],u[1],u[2],u[3],u[4],u[5],u[6],u[7]))
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u = (u32 *)s->xram;
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while (u < ((u32 *)s->regs)) {
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if (sbus_readl(&u[0]) == 0x00003000 ||
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sbus_readl(&u[0]) == 0x00003801) {
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SOD(("Found at %04lx\n",
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(unsigned long)u - (unsigned long)s->xram))
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SOD((" %08x.%08x.%08x.%08x.%08x.%08x.%08x.%08x\n",
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sbus_readl(&u[0]), sbus_readl(&u[1]),
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sbus_readl(&u[2]), sbus_readl(&u[3]),
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sbus_readl(&u[4]), sbus_readl(&u[5]),
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sbus_readl(&u[6]), sbus_readl(&u[7])))
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u += 8;
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SOD((" %08x.%08x.%08x.%08x.%08x.%08x.%08x.%08x\n",
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sbus_readl(&u[0]), sbus_readl(&u[1]),
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sbus_readl(&u[2]), sbus_readl(&u[3]),
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sbus_readl(&u[4]), sbus_readl(&u[5]),
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sbus_readl(&u[6]), sbus_readl(&u[7])))
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u -= 8;
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}
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u++;
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}
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}
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#endif
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token = hwrsp->shdr.token;
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status = hwrsp->status;
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fc = (fc_channel *)(&s->port[(token >> 11) & 1]);
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SOD(("Solicited token %08x status %08x\n", token, status))
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if (status == SOCAL_OK) {
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fcp_receive_solicited(fc, token >> 12,
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token & ((1 << 11) - 1),
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FC_STATUS_OK, NULL);
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} else {
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/* We have intentionally defined FC_STATUS_* constants
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* to match SOCAL_* constants, otherwise we'd have to
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* translate status.
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*/
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fcp_receive_solicited(fc, token >> 12,
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token & ((1 << 11) - 1), status, &hwrsp->fchdr);
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}
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if (++sw_cq->out > sw_cq->last) {
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sw_cq->seqno++;
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sw_cq->out = 0;
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}
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if (sw_cq->out == sw_cq->in) {
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sw_cq->in = sbus_readb(s->regs + RESP + qno);
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if (sw_cq->out == sw_cq->in) {
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/* Tell the hardware about it */
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sbus_writel((sw_cq->out << 24) |
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(SOCAL_CMD_RSP_QALL &
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~(SOCAL_CMD_RSP_Q0 << qno)),
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s->regs + CMD);
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/* Read it, so that we're sure it has been updated */
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sbus_readl(s->regs + CMD);
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sw_cq->in = sbus_readb(s->regs + RESP + qno);
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if (sw_cq->out == sw_cq->in)
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break;
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}
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}
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}
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}
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static inline void socal_request (struct socal *s, u32 cmd)
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{
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SOCAL_SETIMASK(s, s->imask & ~(cmd & SOCAL_CMD_REQ_QALL));
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SOD(("imask %08x %08x\n", s->imask, sbus_readl(s->regs + IMASK)));
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SOD(("Queues available %08x OUT %X\n", cmd, s->regs->reqpr[0]))
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if (s->port[s->curr_port].fc.state != FC_STATE_OFFLINE) {
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fcp_queue_empty ((fc_channel *)&(s->port[s->curr_port]));
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if (((s->req[1].in + 1) & s->req[1].last) != (s->req[1].out))
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fcp_queue_empty ((fc_channel *)&(s->port[1 - s->curr_port]));
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} else {
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fcp_queue_empty ((fc_channel *)&(s->port[1 - s->curr_port]));
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}
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if (s->port[1 - s->curr_port].fc.state != FC_STATE_OFFLINE)
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s->curr_port ^= 1;
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}
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static inline void socal_unsolicited (struct socal *s, unsigned long qno)
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{
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socal_rsp *hwrsp, *hwrspc;
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socal_cq *sw_cq;
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int count;
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int status;
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int flags;
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fc_channel *fc;
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sw_cq = &s->rsp[qno];
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sw_cq->in = sbus_readb(s->regs + RESP + qno);
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SOD (("socal_unsolicited, %d packets arrived, in %d\n",
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(sw_cq->in - sw_cq->out) & sw_cq->last, sw_cq->in))
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while (sw_cq->in != sw_cq->out) {
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/* ...real work per entry here... */
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hwrsp = (socal_rsp *)sw_cq->pool + sw_cq->out;
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SOD(("hwrsp %p out %d\n", hwrsp, sw_cq->out))
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#if defined(SOCALDEBUG) && 0
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{
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u32 *u = (u32 *)hwrsp;
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SOD(("%08x.%08x.%08x.%08x.%08x.%08x.%08x.%08x\n",
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u[0],u[1],u[2],u[3],u[4],u[5],u[6],u[7]))
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u += 8;
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SOD(("%08x.%08x.%08x.%08x.%08x.%08x.%08x.%08x\n",
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u[0],u[1],u[2],u[3],u[4],u[5],u[6],u[7]))
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}
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#endif
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hwrspc = NULL;
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flags = hwrsp->shdr.flags;
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count = hwrsp->count;
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fc = (fc_channel *)&s->port[flags & SOCAL_PORT_B];
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SOD(("FC %08lx\n", (long)fc))
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if (count != 1) {
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/* Ugh, continuation entries */
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u8 in;
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if (count != 2) {
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printk("%s: Too many continuations entries %d\n",
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fc->name, count);
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goto update_out;
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}
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in = sw_cq->in;
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if (in < sw_cq->out)
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in += sw_cq->last + 1;
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if (in < sw_cq->out + 2) {
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/* Ask the hardware if they haven't arrived yet. */
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sbus_writel((sw_cq->out << 24) |
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(SOCAL_CMD_RSP_QALL &
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~(SOCAL_CMD_RSP_Q0 << qno)),
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s->regs + CMD);
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/* Read it, so that we're sure it has been updated */
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sbus_readl(s->regs + CMD);
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sw_cq->in = sbus_readb(s->regs + RESP + qno);
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in = sw_cq->in;
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if (in < sw_cq->out)
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in += sw_cq->last + 1;
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if (in < sw_cq->out + 2) /* Nothing came, let us wait */
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return;
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}
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if (sw_cq->out == sw_cq->last)
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hwrspc = (socal_rsp *)sw_cq->pool;
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else
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hwrspc = hwrsp + 1;
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}
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switch (flags & ~SOCAL_PORT_B) {
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case SOCAL_STATUS:
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status = hwrsp->status;
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switch (status) {
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case SOCAL_ONLINE:
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SOD(("State change to ONLINE\n"));
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fcp_state_change(fc, FC_STATE_ONLINE);
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break;
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case SOCAL_ONLINE_LOOP:
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SOD(("State change to ONLINE_LOOP\n"));
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fcp_state_change(fc, FC_STATE_ONLINE);
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break;
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case SOCAL_OFFLINE:
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SOD(("State change to OFFLINE\n"));
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fcp_state_change(fc, FC_STATE_OFFLINE);
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break;
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default:
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printk ("%s: Unknown STATUS no %d\n",
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fc->name, status);
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break;
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};
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break;
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case (SOCAL_UNSOLICITED|SOCAL_FC_HDR):
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{
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int r_ctl = *((u8 *)&hwrsp->fchdr);
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unsigned len;
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if ((r_ctl & 0xf0) == R_CTL_EXTENDED_SVC) {
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len = hwrsp->shdr.bytecnt;
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if (len < 4 || !hwrspc) {
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printk ("%s: Invalid R_CTL %02x "
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"continuation entries\n",
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fc->name, r_ctl);
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} else {
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if (len > 60)
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len = 60;
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if (*(u32 *)hwrspc == LS_DISPLAY) {
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int i;
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for (i = 4; i < len; i++)
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if (((u8 *)hwrspc)[i] == '\n')
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((u8 *)hwrspc)[i] = ' ';
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((u8 *)hwrspc)[len] = 0;
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printk ("%s message: %s\n",
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fc->name, ((u8 *)hwrspc) + 4);
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} else {
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printk ("%s: Unknown LS_CMD "
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"%08x\n", fc->name,
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*(u32 *)hwrspc);
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}
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}
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} else {
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printk ("%s: Unsolicited R_CTL %02x "
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"not handled\n", fc->name, r_ctl);
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}
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}
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break;
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default:
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printk ("%s: Unexpected flags %08x\n", fc->name, flags);
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break;
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};
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update_out:
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if (++sw_cq->out > sw_cq->last) {
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sw_cq->seqno++;
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sw_cq->out = 0;
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}
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if (hwrspc) {
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if (++sw_cq->out > sw_cq->last) {
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sw_cq->seqno++;
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sw_cq->out = 0;
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}
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}
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if (sw_cq->out == sw_cq->in) {
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sw_cq->in = sbus_readb(s->regs + RESP + qno);
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if (sw_cq->out == sw_cq->in) {
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/* Tell the hardware about it */
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sbus_writel((sw_cq->out << 24) |
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(SOCAL_CMD_RSP_QALL &
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~(SOCAL_CMD_RSP_Q0 << qno)),
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s->regs + CMD);
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/* Read it, so that we're sure it has been updated */
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sbus_readl(s->regs + CMD);
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sw_cq->in = sbus_readb(s->regs + RESP + qno);
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}
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}
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}
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}
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static irqreturn_t socal_intr(int irq, void *dev_id, struct pt_regs *regs)
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{
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u32 cmd;
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unsigned long flags;
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register struct socal *s = (struct socal *)dev_id;
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spin_lock_irqsave(&s->lock, flags);
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cmd = sbus_readl(s->regs + CMD);
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for (; (cmd = SOCAL_INTR (s, cmd)); cmd = sbus_readl(s->regs + CMD)) {
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#ifdef SOCALDEBUG
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static int cnt = 0;
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if (cnt++ < 50)
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printk("soc_intr %08x\n", cmd);
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#endif
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if (cmd & SOCAL_CMD_RSP_Q2)
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socal_unsolicited (s, SOCAL_UNSOLICITED_RSP_Q);
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if (cmd & SOCAL_CMD_RSP_Q1)
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socal_unsolicited (s, SOCAL_SOLICITED_BAD_RSP_Q);
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if (cmd & SOCAL_CMD_RSP_Q0)
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socal_solicited (s, SOCAL_SOLICITED_RSP_Q);
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if (cmd & SOCAL_CMD_REQ_QALL)
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socal_request (s, cmd);
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}
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spin_unlock_irqrestore(&s->lock, flags);
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return IRQ_HANDLED;
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}
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#define TOKEN(proto, port, token) (((proto)<<12)|(token)|(port))
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static int socal_hw_enque (fc_channel *fc, fcp_cmnd *fcmd)
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{
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socal_port *port = (socal_port *)fc;
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struct socal *s = port->s;
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unsigned long qno;
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socal_cq *sw_cq;
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int cq_next_in;
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socal_req *request;
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fc_hdr *fch;
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int i;
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if (fcmd->proto == TYPE_SCSI_FCP)
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qno = 1;
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else
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qno = 0;
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SOD(("Putting a FCP packet type %d into hw queue %d\n", fcmd->proto, qno))
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if (s->imask & (SOCAL_IMASK_REQ_Q0 << qno)) {
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SOD(("EIO %08x\n", s->imask))
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|
return -EIO;
|
|
}
|
|
sw_cq = s->req + qno;
|
|
cq_next_in = (sw_cq->in + 1) & sw_cq->last;
|
|
|
|
if (cq_next_in == sw_cq->out &&
|
|
cq_next_in == (sw_cq->out = sbus_readb(s->regs + REQP + qno))) {
|
|
SOD(("%d IN %d OUT %d LAST %d\n",
|
|
qno, sw_cq->in,
|
|
sw_cq->out, sw_cq->last))
|
|
SOCAL_SETIMASK(s, s->imask | (SOCAL_IMASK_REQ_Q0 << qno));
|
|
SOD(("imask %08x %08x\n", s->imask, sbus_readl(s->regs + IMASK)));
|
|
|
|
/* If queue is full, just say NO. */
|
|
return -EBUSY;
|
|
}
|
|
|
|
request = sw_cq->pool + sw_cq->in;
|
|
fch = &request->fchdr;
|
|
|
|
switch (fcmd->proto) {
|
|
case TYPE_SCSI_FCP:
|
|
request->shdr.token = TOKEN(TYPE_SCSI_FCP, port->mask, fcmd->token);
|
|
request->data[0].base = fc->dma_scsi_cmd + fcmd->token * sizeof(fcp_cmd);
|
|
request->data[0].count = sizeof(fcp_cmd);
|
|
request->data[1].base = fc->dma_scsi_rsp + fcmd->token * fc->rsp_size;
|
|
request->data[1].count = fc->rsp_size;
|
|
if (fcmd->data) {
|
|
request->shdr.segcnt = 3;
|
|
i = fc->scsi_cmd_pool[fcmd->token].fcp_data_len;
|
|
request->shdr.bytecnt = i;
|
|
request->data[2].base = fcmd->data;
|
|
request->data[2].count = i;
|
|
request->type = (fc->scsi_cmd_pool[fcmd->token].fcp_cntl & FCP_CNTL_WRITE) ?
|
|
SOCAL_CQTYPE_IO_WRITE : SOCAL_CQTYPE_IO_READ;
|
|
} else {
|
|
request->shdr.segcnt = 2;
|
|
request->shdr.bytecnt = 0;
|
|
request->data[2].base = 0;
|
|
request->data[2].count = 0;
|
|
request->type = SOCAL_CQTYPE_SIMPLE;
|
|
}
|
|
FILL_FCHDR_RCTL_DID(fch, R_CTL_COMMAND, fcmd->did);
|
|
FILL_FCHDR_SID(fch, fc->sid);
|
|
FILL_FCHDR_TYPE_FCTL(fch, TYPE_SCSI_FCP, F_CTL_FIRST_SEQ | F_CTL_SEQ_INITIATIVE);
|
|
FILL_FCHDR_SEQ_DF_SEQ(fch, 0, 0, 0);
|
|
FILL_FCHDR_OXRX(fch, 0xffff, 0xffff);
|
|
fch->param = 0;
|
|
request->shdr.flags = port->flags;
|
|
request->shdr.class = fc->posmap ? 3 : 2;
|
|
break;
|
|
|
|
case PROTO_OFFLINE:
|
|
memset (request, 0, sizeof(*request));
|
|
request->shdr.token = TOKEN(PROTO_OFFLINE, port->mask, fcmd->token);
|
|
request->type = SOCAL_CQTYPE_OFFLINE;
|
|
FILL_FCHDR_RCTL_DID(fch, R_CTL_COMMAND, fcmd->did);
|
|
FILL_FCHDR_SID(fch, fc->sid);
|
|
FILL_FCHDR_TYPE_FCTL(fch, TYPE_SCSI_FCP, F_CTL_FIRST_SEQ | F_CTL_SEQ_INITIATIVE);
|
|
FILL_FCHDR_SEQ_DF_SEQ(fch, 0, 0, 0);
|
|
FILL_FCHDR_OXRX(fch, 0xffff, 0xffff);
|
|
request->shdr.flags = port->flags;
|
|
break;
|
|
|
|
case PROTO_REPORT_AL_MAP:
|
|
memset (request, 0, sizeof(*request));
|
|
request->shdr.token = TOKEN(PROTO_REPORT_AL_MAP, port->mask, fcmd->token);
|
|
request->type = SOCAL_CQTYPE_REPORT_MAP;
|
|
request->shdr.flags = port->flags;
|
|
request->shdr.segcnt = 1;
|
|
request->shdr.bytecnt = sizeof(fc_al_posmap);
|
|
request->data[0].base = fcmd->cmd;
|
|
request->data[0].count = sizeof(fc_al_posmap);
|
|
break;
|
|
|
|
default:
|
|
request->shdr.token = TOKEN(fcmd->proto, port->mask, fcmd->token);
|
|
request->shdr.class = fc->posmap ? 3 : 2;
|
|
request->shdr.flags = port->flags;
|
|
memcpy (fch, &fcmd->fch, sizeof(fc_hdr));
|
|
request->data[0].count = fcmd->cmdlen;
|
|
request->data[1].count = fcmd->rsplen;
|
|
request->type = fcmd->class;
|
|
switch (fcmd->class) {
|
|
case FC_CLASS_OUTBOUND:
|
|
request->data[0].base = fcmd->cmd;
|
|
request->data[0].count = fcmd->cmdlen;
|
|
request->type = SOCAL_CQTYPE_OUTBOUND;
|
|
request->shdr.bytecnt = fcmd->cmdlen;
|
|
request->shdr.segcnt = 1;
|
|
break;
|
|
case FC_CLASS_INBOUND:
|
|
request->data[0].base = fcmd->rsp;
|
|
request->data[0].count = fcmd->rsplen;
|
|
request->type = SOCAL_CQTYPE_INBOUND;
|
|
request->shdr.bytecnt = 0;
|
|
request->shdr.segcnt = 1;
|
|
break;
|
|
case FC_CLASS_SIMPLE:
|
|
request->data[0].base = fcmd->cmd;
|
|
request->data[1].base = fcmd->rsp;
|
|
request->data[0].count = fcmd->cmdlen;
|
|
request->data[1].count = fcmd->rsplen;
|
|
request->type = SOCAL_CQTYPE_SIMPLE;
|
|
request->shdr.bytecnt = fcmd->cmdlen;
|
|
request->shdr.segcnt = 2;
|
|
break;
|
|
case FC_CLASS_IO_READ:
|
|
case FC_CLASS_IO_WRITE:
|
|
request->data[0].base = fcmd->cmd;
|
|
request->data[1].base = fcmd->rsp;
|
|
request->data[0].count = fcmd->cmdlen;
|
|
request->data[1].count = fcmd->rsplen;
|
|
request->type = (fcmd->class == FC_CLASS_IO_READ) ? SOCAL_CQTYPE_IO_READ : SOCAL_CQTYPE_IO_WRITE;
|
|
if (fcmd->data) {
|
|
request->data[2].base = fcmd->data;
|
|
request->data[2].count = fcmd->datalen;
|
|
request->shdr.bytecnt = fcmd->datalen;
|
|
request->shdr.segcnt = 3;
|
|
} else {
|
|
request->shdr.bytecnt = 0;
|
|
request->shdr.segcnt = 2;
|
|
}
|
|
break;
|
|
}
|
|
break;
|
|
}
|
|
|
|
request->count = 1;
|
|
request->flags = 0;
|
|
request->seqno = sw_cq->seqno;
|
|
|
|
SOD(("queueing token %08x\n", request->shdr.token))
|
|
|
|
/* And now tell the SOCAL about it */
|
|
|
|
if (++sw_cq->in > sw_cq->last) {
|
|
sw_cq->in = 0;
|
|
sw_cq->seqno++;
|
|
}
|
|
|
|
SOD(("Putting %08x into cmd\n", SOCAL_CMD_RSP_QALL | (sw_cq->in << 24) | (SOCAL_CMD_REQ_Q0 << qno)))
|
|
|
|
sbus_writel(SOCAL_CMD_RSP_QALL | (sw_cq->in << 24) | (SOCAL_CMD_REQ_Q0 << qno),
|
|
s->regs + CMD);
|
|
|
|
/* Read so that command is completed */
|
|
sbus_readl(s->regs + CMD);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static inline void socal_download_fw(struct socal *s)
|
|
{
|
|
#ifdef HAVE_SOCAL_UCODE
|
|
SOD(("Loading %ld bytes from %p to %p\n", sizeof(socal_ucode), socal_ucode, s->xram))
|
|
socal_copy_to_xram(s->xram, socal_ucode, sizeof(socal_ucode));
|
|
SOD(("Clearing the rest of memory\n"))
|
|
socal_bzero (s->xram + sizeof(socal_ucode), 65536 - sizeof(socal_ucode));
|
|
SOD(("Done\n"))
|
|
#endif
|
|
}
|
|
|
|
/* Check for what the best SBUS burst we can use happens
|
|
* to be on this machine.
|
|
*/
|
|
static inline void socal_init_bursts(struct socal *s, struct sbus_dev *sdev)
|
|
{
|
|
int bsizes, bsizes_more;
|
|
u32 cfg;
|
|
|
|
bsizes = (prom_getintdefault(sdev->prom_node,"burst-sizes",0xff) & 0xff);
|
|
bsizes_more = (prom_getintdefault(sdev->bus->prom_node, "burst-sizes", 0xff) & 0xff);
|
|
bsizes &= bsizes_more;
|
|
#ifdef USE_64BIT_MODE
|
|
#ifdef __sparc_v9__
|
|
mmu_set_sbus64(sdev, bsizes >> 16);
|
|
#endif
|
|
#endif
|
|
if ((bsizes & 0x7f) == 0x7f)
|
|
cfg = SOCAL_CFG_BURST_64;
|
|
else if ((bsizes & 0x3f) == 0x3f)
|
|
cfg = SOCAL_CFG_BURST_32;
|
|
else if ((bsizes & 0x1f) == 0x1f)
|
|
cfg = SOCAL_CFG_BURST_16;
|
|
else
|
|
cfg = SOCAL_CFG_BURST_4;
|
|
#ifdef USE_64BIT_MODE
|
|
#ifdef __sparc_v9__
|
|
/* What is BURST_128? -jj */
|
|
if ((bsizes & 0x780000) == 0x780000)
|
|
cfg |= (SOCAL_CFG_BURST_64 << 8) | SOCAL_CFG_SBUS_ENHANCED;
|
|
else if ((bsizes & 0x380000) == 0x380000)
|
|
cfg |= (SOCAL_CFG_BURST_32 << 8) | SOCAL_CFG_SBUS_ENHANCED;
|
|
else if ((bsizes & 0x180000) == 0x180000)
|
|
cfg |= (SOCAL_CFG_BURST_16 << 8) | SOCAL_CFG_SBUS_ENHANCED;
|
|
else
|
|
cfg |= (SOCAL_CFG_BURST_8 << 8) | SOCAL_CFG_SBUS_ENHANCED;
|
|
#endif
|
|
#endif
|
|
s->cfg = cfg;
|
|
}
|
|
|
|
static inline void socal_init(struct sbus_dev *sdev, int no)
|
|
{
|
|
unsigned char tmp[60];
|
|
int propl;
|
|
struct socal *s;
|
|
static unsigned version_printed = 0;
|
|
socal_hw_cq cq[8];
|
|
int size, i;
|
|
int irq, node;
|
|
|
|
s = kzalloc (sizeof (struct socal), GFP_KERNEL);
|
|
if (!s) return;
|
|
spin_lock_init(&s->lock);
|
|
s->socal_no = no;
|
|
|
|
SOD(("socals %08lx socal_intr %08lx socal_hw_enque %08lx\n",
|
|
(long)socals, (long)socal_intr, (long)socal_hw_enque))
|
|
if (version_printed++ == 0)
|
|
printk (version);
|
|
|
|
s->port[0].fc.module = THIS_MODULE;
|
|
s->port[1].fc.module = THIS_MODULE;
|
|
|
|
s->next = socals;
|
|
socals = s;
|
|
s->port[0].fc.dev = sdev;
|
|
s->port[1].fc.dev = sdev;
|
|
s->port[0].s = s;
|
|
s->port[1].s = s;
|
|
|
|
s->port[0].fc.next = &s->port[1].fc;
|
|
|
|
/* World Wide Name of SOCAL */
|
|
propl = prom_getproperty (sdev->prom_node, "wwn", tmp, sizeof(tmp));
|
|
if (propl != sizeof (fc_wwn)) {
|
|
s->wwn.naaid = NAAID_IEEE_REG;
|
|
s->wwn.nportid = 0x123;
|
|
s->wwn.hi = 0x1234;
|
|
s->wwn.lo = 0x12345678;
|
|
} else
|
|
memcpy (&s->wwn, tmp, sizeof (fc_wwn));
|
|
|
|
memcpy (&s->port[0].fc.wwn_nport, &s->wwn, sizeof (fc_wwn));
|
|
s->port[0].fc.wwn_nport.lo++;
|
|
memcpy (&s->port[1].fc.wwn_nport, &s->wwn, sizeof (fc_wwn));
|
|
s->port[1].fc.wwn_nport.lo+=2;
|
|
|
|
node = prom_getchild (sdev->prom_node);
|
|
while (node && (node = prom_searchsiblings (node, "sf"))) {
|
|
int port;
|
|
|
|
port = prom_getintdefault(node, "port#", -1);
|
|
switch (port) {
|
|
case 0:
|
|
case 1:
|
|
if (prom_getproplen(node, "port-wwn") == sizeof (fc_wwn))
|
|
prom_getproperty (node, "port-wwn",
|
|
(char *)&s->port[port].fc.wwn_nport,
|
|
sizeof (fc_wwn));
|
|
break;
|
|
default:
|
|
break;
|
|
};
|
|
|
|
node = prom_getsibling(node);
|
|
}
|
|
|
|
memcpy (&s->port[0].fc.wwn_node, &s->wwn, sizeof (fc_wwn));
|
|
memcpy (&s->port[1].fc.wwn_node, &s->wwn, sizeof (fc_wwn));
|
|
SOD(("Got wwns %08x%08x ports %08x%08x and %08x%08x\n",
|
|
*(u32 *)&s->port[0].fc.wwn_node, s->port[0].fc.wwn_node.lo,
|
|
*(u32 *)&s->port[0].fc.wwn_nport, s->port[0].fc.wwn_nport.lo,
|
|
*(u32 *)&s->port[1].fc.wwn_nport, s->port[1].fc.wwn_nport.lo))
|
|
|
|
s->port[0].fc.sid = 1;
|
|
s->port[1].fc.sid = 17;
|
|
s->port[0].fc.did = 2;
|
|
s->port[1].fc.did = 18;
|
|
|
|
s->port[0].fc.reset = socal_reset;
|
|
s->port[1].fc.reset = socal_reset;
|
|
|
|
if (sdev->num_registers == 1) {
|
|
s->eeprom = sbus_ioremap(&sdev->resource[0], 0,
|
|
sdev->reg_addrs[0].reg_size, "socal xram");
|
|
if (sdev->reg_addrs[0].reg_size > 0x20000)
|
|
s->xram = s->eeprom + 0x10000UL;
|
|
else
|
|
s->xram = s->eeprom;
|
|
s->regs = (s->xram + 0x10000UL);
|
|
} else {
|
|
/* E.g. starfire presents 3 registers for SOCAL */
|
|
s->xram = sbus_ioremap(&sdev->resource[1], 0,
|
|
sdev->reg_addrs[1].reg_size, "socal xram");
|
|
s->regs = sbus_ioremap(&sdev->resource[2], 0,
|
|
sdev->reg_addrs[2].reg_size, "socal regs");
|
|
}
|
|
|
|
socal_init_bursts(s, sdev);
|
|
|
|
SOD(("Disabling SOCAL\n"))
|
|
|
|
socal_disable (s);
|
|
|
|
irq = sdev->irqs[0];
|
|
|
|
if (request_irq (irq, socal_intr, SA_SHIRQ, "SOCAL", (void *)s)) {
|
|
socal_printk ("Cannot order irq %d to go\n", irq);
|
|
socals = s->next;
|
|
return;
|
|
}
|
|
|
|
SOD(("SOCAL uses IRQ %s\n", __irq_itoa(irq)))
|
|
|
|
s->port[0].fc.irq = irq;
|
|
s->port[1].fc.irq = irq;
|
|
|
|
sprintf (s->port[0].fc.name, "socal%d port A", no);
|
|
sprintf (s->port[1].fc.name, "socal%d port B", no);
|
|
s->port[0].flags = SOCAL_FC_HDR | SOCAL_PORT_A;
|
|
s->port[1].flags = SOCAL_FC_HDR | SOCAL_PORT_B;
|
|
s->port[1].mask = (1 << 11);
|
|
|
|
s->port[0].fc.hw_enque = socal_hw_enque;
|
|
s->port[1].fc.hw_enque = socal_hw_enque;
|
|
|
|
socal_download_fw (s);
|
|
|
|
SOD(("Downloaded firmware\n"))
|
|
|
|
/* Now setup xram circular queues */
|
|
memset (cq, 0, sizeof(cq));
|
|
|
|
size = (SOCAL_CQ_REQ0_SIZE + SOCAL_CQ_REQ1_SIZE +
|
|
SOCAL_CQ_RSP0_SIZE + SOCAL_CQ_RSP1_SIZE +
|
|
SOCAL_CQ_RSP2_SIZE) * sizeof(socal_req);
|
|
s->req_cpu = sbus_alloc_consistent(sdev, size, &s->req_dvma);
|
|
s->req[0].pool = s->req_cpu;
|
|
cq[0].address = s->req_dvma;
|
|
s->req[1].pool = s->req[0].pool + SOCAL_CQ_REQ0_SIZE;
|
|
s->rsp[0].pool = s->req[1].pool + SOCAL_CQ_REQ1_SIZE;
|
|
s->rsp[1].pool = s->rsp[0].pool + SOCAL_CQ_RSP0_SIZE;
|
|
s->rsp[2].pool = s->rsp[1].pool + SOCAL_CQ_RSP1_SIZE;
|
|
|
|
s->req[0].hw_cq = (socal_hw_cq __iomem *)(s->xram + SOCAL_CQ_REQ_OFFSET);
|
|
s->req[1].hw_cq = (socal_hw_cq __iomem *)(s->xram + SOCAL_CQ_REQ_OFFSET + sizeof(socal_hw_cq));
|
|
s->rsp[0].hw_cq = (socal_hw_cq __iomem *)(s->xram + SOCAL_CQ_RSP_OFFSET);
|
|
s->rsp[1].hw_cq = (socal_hw_cq __iomem *)(s->xram + SOCAL_CQ_RSP_OFFSET + sizeof(socal_hw_cq));
|
|
s->rsp[2].hw_cq = (socal_hw_cq __iomem *)(s->xram + SOCAL_CQ_RSP_OFFSET + 2 * sizeof(socal_hw_cq));
|
|
|
|
cq[1].address = cq[0].address + (SOCAL_CQ_REQ0_SIZE * sizeof(socal_req));
|
|
cq[4].address = cq[1].address + (SOCAL_CQ_REQ1_SIZE * sizeof(socal_req));
|
|
cq[5].address = cq[4].address + (SOCAL_CQ_RSP0_SIZE * sizeof(socal_req));
|
|
cq[6].address = cq[5].address + (SOCAL_CQ_RSP1_SIZE * sizeof(socal_req));
|
|
|
|
cq[0].last = SOCAL_CQ_REQ0_SIZE - 1;
|
|
cq[1].last = SOCAL_CQ_REQ1_SIZE - 1;
|
|
cq[4].last = SOCAL_CQ_RSP0_SIZE - 1;
|
|
cq[5].last = SOCAL_CQ_RSP1_SIZE - 1;
|
|
cq[6].last = SOCAL_CQ_RSP2_SIZE - 1;
|
|
for (i = 0; i < 8; i++)
|
|
cq[i].seqno = 1;
|
|
|
|
s->req[0].last = SOCAL_CQ_REQ0_SIZE - 1;
|
|
s->req[1].last = SOCAL_CQ_REQ1_SIZE - 1;
|
|
s->rsp[0].last = SOCAL_CQ_RSP0_SIZE - 1;
|
|
s->rsp[1].last = SOCAL_CQ_RSP1_SIZE - 1;
|
|
s->rsp[2].last = SOCAL_CQ_RSP2_SIZE - 1;
|
|
|
|
s->req[0].seqno = 1;
|
|
s->req[1].seqno = 1;
|
|
s->rsp[0].seqno = 1;
|
|
s->rsp[1].seqno = 1;
|
|
s->rsp[2].seqno = 1;
|
|
|
|
socal_copy_to_xram(s->xram + SOCAL_CQ_REQ_OFFSET, cq, sizeof(cq));
|
|
|
|
SOD(("Setting up params\n"))
|
|
|
|
/* Make our sw copy of SOCAL service parameters */
|
|
socal_copy_from_xram(s->serv_params, s->xram + 0x280, sizeof (s->serv_params));
|
|
|
|
s->port[0].fc.common_svc = (common_svc_parm *)s->serv_params;
|
|
s->port[0].fc.class_svcs = (svc_parm *)(s->serv_params + 0x20);
|
|
s->port[1].fc.common_svc = (common_svc_parm *)&s->serv_params;
|
|
s->port[1].fc.class_svcs = (svc_parm *)(s->serv_params + 0x20);
|
|
|
|
socal_enable (s);
|
|
|
|
SOD(("Enabled SOCAL\n"))
|
|
}
|
|
|
|
static int __init socal_probe(void)
|
|
{
|
|
struct sbus_bus *sbus;
|
|
struct sbus_dev *sdev = NULL;
|
|
struct socal *s;
|
|
int cards = 0;
|
|
|
|
for_each_sbus(sbus) {
|
|
for_each_sbusdev(sdev, sbus) {
|
|
if(!strcmp(sdev->prom_name, "SUNW,socal")) {
|
|
socal_init(sdev, cards);
|
|
cards++;
|
|
}
|
|
}
|
|
}
|
|
if (!cards)
|
|
return -EIO;
|
|
|
|
for_each_socal(s)
|
|
if (s->next)
|
|
s->port[1].fc.next = &s->next->port[0].fc;
|
|
|
|
fcp_init (&socals->port[0].fc);
|
|
return 0;
|
|
}
|
|
|
|
static void __exit socal_cleanup(void)
|
|
{
|
|
struct socal *s;
|
|
int irq;
|
|
struct sbus_dev *sdev;
|
|
|
|
for_each_socal(s) {
|
|
irq = s->port[0].fc.irq;
|
|
free_irq (irq, s);
|
|
|
|
fcp_release(&(s->port[0].fc), 2);
|
|
|
|
sdev = s->port[0].fc.dev;
|
|
if (sdev->num_registers == 1) {
|
|
sbus_iounmap(s->eeprom, sdev->reg_addrs[0].reg_size);
|
|
} else {
|
|
sbus_iounmap(s->xram, sdev->reg_addrs[1].reg_size);
|
|
sbus_iounmap(s->regs, sdev->reg_addrs[2].reg_size);
|
|
}
|
|
sbus_free_consistent(sdev,
|
|
(SOCAL_CQ_REQ0_SIZE + SOCAL_CQ_REQ1_SIZE +
|
|
SOCAL_CQ_RSP0_SIZE + SOCAL_CQ_RSP1_SIZE +
|
|
SOCAL_CQ_RSP2_SIZE) * sizeof(socal_req),
|
|
s->req_cpu, s->req_dvma);
|
|
}
|
|
}
|
|
|
|
module_init(socal_probe);
|
|
module_exit(socal_cleanup);
|
|
MODULE_LICENSE("GPL");
|