OpenE2K
/
linux
6
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity
linux/drivers/fc4/soc.c

765 lines
21 KiB
C
Raw Blame History

/* soc.c: Sparc SUNW,soc (Serial Optical Channel) Fibre Channel Sbus adapter support.
*
* Copyright (C) 1996,1997,1999 Jakub Jelinek (jj@ultra.linux.cz)
* Copyright (C) 1997,1998 Jirka Hanika (geo@ff.cuni.cz)
*
* Sources:
* Fibre Channel Physical & Signaling Interface (FC-PH), dpANS, 1994
* dpANS Fibre Channel Protocol for SCSI (X3.269-199X), Rev. 012, 1995
*
* Supported hardware:
* Tested on SOC sbus card bought with SS1000 in Linux running on SS5 and Ultra1.
* For SOC sbus cards, you have to make sure your FCode is 1.52 or later.
* If you have older FCode, you should try to upgrade or get SOC microcode from Sun
* (the microcode is present in Solaris soc driver as well). In that case you need
* to #define HAVE_SOC_UCODE and format the microcode into soc_asm.c. For the exact
* format mail me and I will tell you. I cannot offer you the actual microcode though,
* unless Sun confirms they don't mind.
*/
static char *version =
"soc.c:v1.3 9/Feb/99 Jakub Jelinek (jj@ultra.linux.cz), Jirka Hanika (geo@ff.cuni.cz)\n";
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/types.h>
#include <linux/fcntl.h>
#include <linux/interrupt.h>
#include <linux/ptrace.h>
#include <linux/ioport.h>
#include <linux/in.h>
#include <linux/slab.h>
#include <linux/string.h>
#include <linux/init.h>
#include <linux/bitops.h>
#include <asm/io.h>
#include <asm/dma.h>
#include <linux/errno.h>
#include <asm/byteorder.h>
#include <asm/openprom.h>
#include <asm/oplib.h>
#include <asm/pgtable.h>
#include <asm/irq.h>
/* #define SOCDEBUG */
/* #define HAVE_SOC_UCODE */
#include "fcp_impl.h"
#include "soc.h"
#ifdef HAVE_SOC_UCODE
#include "soc_asm.h"
#endif
#define soc_printk printk ("soc%d: ", s->soc_no); printk
#ifdef SOCDEBUG
#define SOD(x) soc_printk x;
#else
#define SOD(x)
#endif
#define for_each_soc(s) for (s = socs; s; s = s->next)
struct soc *socs = NULL;
static inline void soc_disable(struct soc *s)
{
sbus_writel(0, s->regs + IMASK);
sbus_writel(SOC_CMD_SOFT_RESET, s->regs + CMD);
}
static inline void soc_enable(struct soc *s)
{
SOD(("enable %08x\n", s->cfg))
sbus_writel(0, s->regs + SAE);
sbus_writel(s->cfg, s->regs + CFG);
sbus_writel(SOC_CMD_RSP_QALL, s->regs + CMD);
SOC_SETIMASK(s, SOC_IMASK_RSP_QALL | SOC_IMASK_SAE);
SOD(("imask %08lx %08lx\n", s->imask, sbus_readl(s->regs + IMAK)));
}
static void soc_reset(fc_channel *fc)
{
soc_port *port = (soc_port *)fc;
struct soc *s = port->s;
/* FIXME */
soc_disable(s);
s->req[0].seqno = 1;
s->req[1].seqno = 1;
s->rsp[0].seqno = 1;
s->rsp[1].seqno = 1;
s->req[0].in = 0;
s->req[1].in = 0;
s->rsp[0].in = 0;
s->rsp[1].in = 0;
s->req[0].out = 0;
s->req[1].out = 0;
s->rsp[0].out = 0;
s->rsp[1].out = 0;
/* FIXME */
soc_enable(s);
}
static inline void soc_solicited (struct soc *s)
{
fc_hdr fchdr;
soc_rsp __iomem *hwrsp;
soc_cq_rsp *sw_cq;
int token;
int status;
fc_channel *fc;
sw_cq = &s->rsp[SOC_SOLICITED_RSP_Q];
if (sw_cq->pool == NULL)
sw_cq->pool = (soc_req __iomem *)
(s->xram + xram_get_32low ((xram_p)&sw_cq->hw_cq->address));
sw_cq->in = xram_get_8 ((xram_p)&sw_cq->hw_cq->in);
SOD (("soc_solicited, %d pkts arrived\n", (sw_cq->in-sw_cq->out) & sw_cq->last))
for (;;) {
hwrsp = (soc_rsp __iomem *)sw_cq->pool + sw_cq->out;
token = xram_get_32low ((xram_p)&hwrsp->shdr.token);
status = xram_get_32low ((xram_p)&hwrsp->status);
fc = (fc_channel *)(&s->port[(token >> 11) & 1]);
if (status == SOC_OK) {
fcp_receive_solicited(fc, token >> 12,
token & ((1 << 11) - 1),
FC_STATUS_OK, NULL);
} else {
xram_copy_from(&fchdr, (xram_p)&hwrsp->fchdr, sizeof(fchdr));
/* We have intentionally defined FC_STATUS_* constants
* to match SOC_* constants, otherwise we'd have to
* translate status.
*/
fcp_receive_solicited(fc, token >> 12,
token & ((1 << 11) - 1),
status, &fchdr);
}
if (++sw_cq->out > sw_cq->last) {
sw_cq->seqno++;
sw_cq->out = 0;
}
if (sw_cq->out == sw_cq->in) {
sw_cq->in = xram_get_8 ((xram_p)&sw_cq->hw_cq->in);
if (sw_cq->out == sw_cq->in) {
/* Tell the hardware about it */
sbus_writel((sw_cq->out << 24) |
(SOC_CMD_RSP_QALL &
~(SOC_CMD_RSP_Q0 << SOC_SOLICITED_RSP_Q)),
s->regs + CMD);
/* Read it, so that we're sure it has been updated */
sbus_readl(s->regs + CMD);
sw_cq->in = xram_get_8 ((xram_p)&sw_cq->hw_cq->in);
if (sw_cq->out == sw_cq->in)
break;
}
}
}
}
static inline void soc_request (struct soc *s, u32 cmd)
{
SOC_SETIMASK(s, s->imask & ~(cmd & SOC_CMD_REQ_QALL));
SOD(("imask %08lx %08lx\n", s->imask, sbus_readl(s->regs + IMASK)));
SOD(("Queues available %08x OUT %X %X\n", cmd,
xram_get_8((xram_p)&s->req[0].hw_cq->out),
xram_get_8((xram_p)&s->req[0].hw_cq->out)))
if (s->port[s->curr_port].fc.state != FC_STATE_OFFLINE) {
fcp_queue_empty ((fc_channel *)&(s->port[s->curr_port]));
if (((s->req[1].in + 1) & s->req[1].last) != (s->req[1].out))
fcp_queue_empty ((fc_channel *)&(s->port[1 - s->curr_port]));
} else {
fcp_queue_empty ((fc_channel *)&(s->port[1 - s->curr_port]));
}
if (s->port[1 - s->curr_port].fc.state != FC_STATE_OFFLINE)
s->curr_port ^= 1;
}
static inline void soc_unsolicited (struct soc *s)
{
soc_rsp __iomem *hwrsp, *hwrspc;
soc_cq_rsp *sw_cq;
int count;
int status;
int flags;
fc_channel *fc;
sw_cq = &s->rsp[SOC_UNSOLICITED_RSP_Q];
if (sw_cq->pool == NULL)
sw_cq->pool = (soc_req __iomem *)
(s->xram + (xram_get_32low ((xram_p)&sw_cq->hw_cq->address)));
sw_cq->in = xram_get_8 ((xram_p)&sw_cq->hw_cq->in);
SOD (("soc_unsolicited, %d packets arrived\n", (sw_cq->in - sw_cq->out) & sw_cq->last))
while (sw_cq->in != sw_cq->out) {
/* ...real work per entry here... */
hwrsp = (soc_rsp __iomem *)sw_cq->pool + sw_cq->out;
hwrspc = NULL;
flags = xram_get_16 ((xram_p)&hwrsp->shdr.flags);
count = xram_get_8 ((xram_p)&hwrsp->count);
fc = (fc_channel *)&s->port[flags & SOC_PORT_B];
SOD(("FC %08lx fcp_state_change %08lx\n",
(long)fc, (long)fc->fcp_state_change))
if (count != 1) {
/* Ugh, continuation entries */
u8 in;
if (count != 2) {
printk("%s: Too many continuations entries %d\n",
fc->name, count);
goto update_out;
}
in = sw_cq->in;
if (in < sw_cq->out) in += sw_cq->last + 1;
if (in < sw_cq->out + 2) {
/* Ask the hardware if they haven't arrived yet. */
sbus_writel((sw_cq->out << 24) |
(SOC_CMD_RSP_QALL &
~(SOC_CMD_RSP_Q0 << SOC_UNSOLICITED_RSP_Q)),
s->regs + CMD);
/* Read it, so that we're sure it has been updated */
sbus_readl(s->regs + CMD);
sw_cq->in = xram_get_8 ((xram_p)&sw_cq->hw_cq->in);
in = sw_cq->in;
if (in < sw_cq->out)
in += sw_cq->last + 1;
if (in < sw_cq->out + 2) /* Nothing came, let us wait */
return;
}
if (sw_cq->out == sw_cq->last)
hwrspc = (soc_rsp __iomem *)sw_cq->pool;
else
hwrspc = hwrsp + 1;
}
switch (flags & ~SOC_PORT_B) {
case SOC_STATUS:
status = xram_get_32low ((xram_p)&hwrsp->status);
switch (status) {
case SOC_ONLINE:
SOD(("State change to ONLINE\n"));
fcp_state_change(fc, FC_STATE_ONLINE);
break;
case SOC_OFFLINE:
SOD(("State change to OFFLINE\n"));
fcp_state_change(fc, FC_STATE_OFFLINE);
break;
default:
printk ("%s: Unknown STATUS no %d\n",
fc->name, status);
break;
}
break;
case (SOC_UNSOLICITED|SOC_FC_HDR):
{
int r_ctl = xram_get_8 ((xram_p)&hwrsp->fchdr);
unsigned len;
char buf[64];
if ((r_ctl & 0xf0) == R_CTL_EXTENDED_SVC) {
len = xram_get_32 ((xram_p)&hwrsp->shdr.bytecnt);
if (len < 4 || !hwrspc) {
printk ("%s: Invalid R_CTL %02x "
"continuation entries\n",
fc->name, r_ctl);
} else {
if (len > 60)
len = 60;
xram_copy_from (buf, (xram_p)hwrspc,
(len + 3) & ~3);
if (*(u32 *)buf == LS_DISPLAY) {
int i;
for (i = 4; i < len; i++)
if (buf[i] == '\n')
buf[i] = ' ';
buf[len] = 0;
printk ("%s message: %s\n",
fc->name, buf + 4);
} else {
printk ("%s: Unknown LS_CMD "
"%02x\n", fc->name,
buf[0]);
}
}
} else {
printk ("%s: Unsolicited R_CTL %02x "
"not handled\n", fc->name, r_ctl);
}
}
break;
default:
printk ("%s: Unexpected flags %08x\n", fc->name, flags);
break;
};
update_out:
if (++sw_cq->out > sw_cq->last) {
sw_cq->seqno++;
sw_cq->out = 0;
}
if (hwrspc) {
if (++sw_cq->out > sw_cq->last) {
sw_cq->seqno++;
sw_cq->out = 0;
}
}
if (sw_cq->out == sw_cq->in) {
sw_cq->in = xram_get_8 ((xram_p)&sw_cq->hw_cq->in);
if (sw_cq->out == sw_cq->in) {
/* Tell the hardware about it */
sbus_writel((sw_cq->out << 24) |
(SOC_CMD_RSP_QALL &
~(SOC_CMD_RSP_Q0 << SOC_UNSOLICITED_RSP_Q)),
s->regs + CMD);
/* Read it, so that we're sure it has been updated */
sbus_readl(s->regs + CMD);
sw_cq->in = xram_get_8 ((xram_p)&sw_cq->hw_cq->in);
}
}
}
}
static irqreturn_t soc_intr(int irq, void *dev_id)
{
u32 cmd;
unsigned long flags;
register struct soc *s = (struct soc *)dev_id;
spin_lock_irqsave(&s->lock, flags);
cmd = sbus_readl(s->regs + CMD);
for (; (cmd = SOC_INTR (s, cmd)); cmd = sbus_readl(s->regs + CMD)) {
if (cmd & SOC_CMD_RSP_Q1) soc_unsolicited (s);
if (cmd & SOC_CMD_RSP_Q0) soc_solicited (s);
if (cmd & SOC_CMD_REQ_QALL) soc_request (s, cmd);
}
spin_unlock_irqrestore(&s->lock, flags);
return IRQ_HANDLED;
}
#define TOKEN(proto, port, token) (((proto)<<12)|(token)|(port))
static int soc_hw_enque (fc_channel *fc, fcp_cmnd *fcmd)
{
soc_port *port = (soc_port *)fc;
struct soc *s = port->s;
int qno;
soc_cq_req *sw_cq;
int cq_next_in;
soc_req *request;
fc_hdr *fch;
int i;
if (fcmd->proto == TYPE_SCSI_FCP)
qno = 1;
else
qno = 0;
SOD(("Putting a FCP packet type %d into hw queue %d\n", fcmd->proto, qno))
if (s->imask & (SOC_IMASK_REQ_Q0 << qno)) {
SOD(("EIO %08x\n", s->imask))
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 = xram_get_8((xram_p)&sw_cq->hw_cq->out))) {
SOD(("%d IN %d OUT %d LAST %d\n", qno, sw_cq->in, sw_cq->out, sw_cq->last))
SOC_SETIMASK(s, s->imask | (SOC_IMASK_REQ_Q0 << qno));
SOD(("imask %08lx %08lx\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) ?
SOC_CQTYPE_IO_WRITE : SOC_CQTYPE_IO_READ;
} else {
request->shdr.segcnt = 2;
request->shdr.bytecnt = 0;
request->data[2].base = 0;
request->data[2].count = 0;
request->type = SOC_CQTYPE_SIMPLE;
}
FILL_FCHDR_RCTL_DID(fch, R_CTL_COMMAND, fc->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 = 2;
break;
case PROTO_OFFLINE:
memset (request, 0, sizeof(*request));
request->shdr.token = TOKEN(PROTO_OFFLINE, port->mask, fcmd->token);
request->type = SOC_CQTYPE_OFFLINE;
FILL_FCHDR_RCTL_DID(fch, R_CTL_COMMAND, fc->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:
/* SOC only supports Point-to-Point topology, no FC-AL, sorry... */
return -ENOSYS;
default:
request->shdr.token = TOKEN(fcmd->proto, port->mask, fcmd->token);
request->shdr.class = 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 = SOC_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 = SOC_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 = SOC_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) ?
SOC_CQTYPE_IO_READ : SOC_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;
/* And now tell the SOC about it */
if (++sw_cq->in > sw_cq->last) {
sw_cq->in = 0;
sw_cq->seqno++;
}
SOD(("Putting %08x into cmd\n",
SOC_CMD_RSP_QALL | (sw_cq->in << 24) | (SOC_CMD_REQ_Q0 << qno)))
sbus_writel(SOC_CMD_RSP_QALL | (sw_cq->in << 24) | (SOC_CMD_REQ_Q0 << qno),
s->regs + CMD);
/* Read so that command is completed. */
sbus_readl(s->regs + CMD);
return 0;
}
static inline void soc_download_fw(struct soc *s)
{
#ifdef HAVE_SOC_UCODE
xram_copy_to (s->xram, soc_ucode, sizeof(soc_ucode));
xram_bzero (s->xram + sizeof(soc_ucode), 32768 - sizeof(soc_ucode));
#endif
}
/* Check for what the best SBUS burst we can use happens
* to be on this machine.
*/
static inline void soc_init_bursts(struct soc *s, struct sbus_dev *sdev)
{
int bsizes, bsizes_more;
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;
if ((bsizes & 0x7f) == 0x7f)
s->cfg = SOC_CFG_BURST_64;
else if ((bsizes & 0x3f) == 0x3f)
s->cfg = SOC_CFG_BURST_32;
else if ((bsizes & 0x1f) == 0x1f)
s->cfg = SOC_CFG_BURST_16;
else
s->cfg = SOC_CFG_BURST_4;
}
static inline void soc_init(struct sbus_dev *sdev, int no)
{
unsigned char tmp[60];
int propl;
struct soc *s;
static int version_printed = 0;
soc_hw_cq cq[8];
int size, i;
int irq;
s = kzalloc (sizeof (struct soc), GFP_KERNEL);
if (s == NULL)
return;
spin_lock_init(&s->lock);
s->soc_no = no;
SOD(("socs %08lx soc_intr %08lx soc_hw_enque %08x\n",
(long)socs, (long)soc_intr, (long)soc_hw_enque))
if (version_printed++ == 0)
printk (version);
s->port[0].fc.module = THIS_MODULE;
s->port[1].fc.module = THIS_MODULE;
s->next = socs;
socs = 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 SOC */
propl = prom_getproperty (sdev->prom_node, "soc-wwn", tmp, sizeof(tmp));
if (propl != sizeof (fc_wwn)) {
s->wwn.naaid = NAAID_IEEE;
s->wwn.lo = 0x12345678;
} else
memcpy (&s->wwn, tmp, sizeof (fc_wwn));
propl = prom_getproperty (sdev->prom_node, "port-wwns", tmp, sizeof(tmp));
if (propl != 2 * sizeof (fc_wwn)) {
s->port[0].fc.wwn_nport.naaid = NAAID_IEEE_EXT;
s->port[0].fc.wwn_nport.hi = s->wwn.hi;
s->port[0].fc.wwn_nport.lo = s->wwn.lo;
s->port[1].fc.wwn_nport.naaid = NAAID_IEEE_EXT;
s->port[1].fc.wwn_nport.nportid = 1;
s->port[1].fc.wwn_nport.hi = s->wwn.hi;
s->port[1].fc.wwn_nport.lo = s->wwn.lo;
} else {
memcpy (&s->port[0].fc.wwn_nport, tmp, sizeof (fc_wwn));
memcpy (&s->port[1].fc.wwn_nport, tmp + sizeof (fc_wwn), sizeof (fc_wwn));
}
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_nport, s->port[0].fc.wwn_nport.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 = soc_reset;
s->port[1].fc.reset = soc_reset;
if (sdev->num_registers == 1) {
/* Probably SunFire onboard SOC */
s->xram = sbus_ioremap(&sdev->resource[0], 0,
0x10000UL, "soc xram");
s->regs = sbus_ioremap(&sdev->resource[0], 0x10000UL,
0x10UL, "soc regs");
} else {
/* Probably SOC sbus card */
s->xram = sbus_ioremap(&sdev->resource[1], 0,
sdev->reg_addrs[1].reg_size, "soc xram");
s->regs = sbus_ioremap(&sdev->resource[2], 0,
sdev->reg_addrs[2].reg_size, "soc regs");
}
soc_init_bursts(s, sdev);
SOD(("Disabling SOC\n"))
soc_disable (s);
irq = sdev->irqs[0];
if (request_irq (irq, soc_intr, IRQF_SHARED, "SOC", (void *)s)) {
soc_printk ("Cannot order irq %d to go\n", irq);
socs = s->next;
return;
}
SOD(("SOC uses IRQ %d\n", irq))
s->port[0].fc.irq = irq;
s->port[1].fc.irq = irq;
sprintf (s->port[0].fc.name, "soc%d port A", no);
sprintf (s->port[1].fc.name, "soc%d port B", no);
s->port[0].flags = SOC_FC_HDR | SOC_PORT_A;
s->port[1].flags = SOC_FC_HDR | SOC_PORT_B;
s->port[1].mask = (1 << 11);
s->port[0].fc.hw_enque = soc_hw_enque;
s->port[1].fc.hw_enque = soc_hw_enque;
soc_download_fw (s);
SOD(("Downloaded firmware\n"))
/* Now setup xram circular queues */
memset (cq, 0, sizeof(cq));
size = (SOC_CQ_REQ0_SIZE + SOC_CQ_REQ1_SIZE) * sizeof(soc_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 + SOC_CQ_REQ0_SIZE;
s->req[0].hw_cq = (soc_hw_cq __iomem *)(s->xram + SOC_CQ_REQ_OFFSET);
s->req[1].hw_cq = (soc_hw_cq __iomem *)(s->xram + SOC_CQ_REQ_OFFSET + sizeof(soc_hw_cq));
s->rsp[0].hw_cq = (soc_hw_cq __iomem *)(s->xram + SOC_CQ_RSP_OFFSET);
s->rsp[1].hw_cq = (soc_hw_cq __iomem *)(s->xram + SOC_CQ_RSP_OFFSET + sizeof(soc_hw_cq));
cq[1].address = cq[0].address + (SOC_CQ_REQ0_SIZE * sizeof(soc_req));
cq[4].address = 1;
cq[5].address = 1;
cq[0].last = SOC_CQ_REQ0_SIZE - 1;
cq[1].last = SOC_CQ_REQ1_SIZE - 1;
cq[4].last = SOC_CQ_RSP0_SIZE - 1;
cq[5].last = SOC_CQ_RSP1_SIZE - 1;
for (i = 0; i < 8; i++)
cq[i].seqno = 1;
s->req[0].last = SOC_CQ_REQ0_SIZE - 1;
s->req[1].last = SOC_CQ_REQ1_SIZE - 1;
s->rsp[0].last = SOC_CQ_RSP0_SIZE - 1;
s->rsp[1].last = SOC_CQ_RSP1_SIZE - 1;
s->req[0].seqno = 1;
s->req[1].seqno = 1;
s->rsp[0].seqno = 1;
s->rsp[1].seqno = 1;
xram_copy_to (s->xram + SOC_CQ_REQ_OFFSET, cq, sizeof(cq));
/* Make our sw copy of SOC service parameters */
xram_copy_from (s->serv_params, s->xram + 0x140, 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);
soc_enable (s);
SOD(("Enabled SOC\n"))
}
static int __init soc_probe(void)
{
struct sbus_bus *sbus;
struct sbus_dev *sdev = NULL;
struct soc *s;
int cards = 0;
for_each_sbus(sbus) {
for_each_sbusdev(sdev, sbus) {
if(!strcmp(sdev->prom_name, "SUNW,soc")) {
soc_init(sdev, cards);
cards++;
}
}
}
if (!cards) return -EIO;
for_each_soc(s)
if (s->next)
s->port[1].fc.next = &s->next->port[0].fc;
fcp_init (&socs->port[0].fc);
return 0;
}
static void __exit soc_cleanup(void)
{
struct soc *s;
int irq;
struct sbus_dev *sdev;
for_each_soc(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->xram, 0x10000UL);
sbus_iounmap(s->regs, 0x10UL);
} 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,
(SOC_CQ_REQ0_SIZE+SOC_CQ_REQ1_SIZE)*sizeof(soc_req),
s->req_cpu, s->req_dvma);
}
}
module_init(soc_probe);
module_exit(soc_cleanup);
MODULE_LICENSE("GPL");
Reference in New Issue View Git Blame Copy Permalink