hollalinux
/
linux-sg2042
mirror of https://github.com/sophgo/linux-riscv.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity
linux-sg2042/drivers/fc4/soc.c

765 lines
21 KiB
C
Raw Normal View History

Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
/* 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);
}
}
}
}
IRQ: Maintain regs pointer globally rather than passing to IRQ handlers Maintain a per-CPU global "struct pt_regs *" variable which can be used instead of passing regs around manually through all ~1800 interrupt handlers in the Linux kernel. The regs pointer is used in few places, but it potentially costs both stack space and code to pass it around. On the FRV arch, removing the regs parameter from all the genirq function results in a 20% speed up of the IRQ exit path (ie: from leaving timer_interrupt() to leaving do_IRQ()). Where appropriate, an arch may override the generic storage facility and do something different with the variable. On FRV, for instance, the address is maintained in GR28 at all times inside the kernel as part of general exception handling. Having looked over the code, it appears that the parameter may be handed down through up to twenty or so layers of functions. Consider a USB character device attached to a USB hub, attached to a USB controller that posts its interrupts through a cascaded auxiliary interrupt controller. A character device driver may want to pass regs to the sysrq handler through the input layer which adds another few layers of parameter passing. I've build this code with allyesconfig for x86_64 and i386. I've runtested the main part of the code on FRV and i386, though I can't test most of the drivers. I've also done partial conversion for powerpc and MIPS - these at least compile with minimal configurations. This will affect all archs. Mostly the changes should be relatively easy. Take do_IRQ(), store the regs pointer at the beginning, saving the old one: struct pt_regs *old_regs = set_irq_regs(regs); And put the old one back at the end: set_irq_regs(old_regs); Don't pass regs through to generic_handle_irq() or __do_IRQ(). In timer_interrupt(), this sort of change will be necessary: - update_process_times(user_mode(regs)); - profile_tick(CPU_PROFILING, regs); + update_process_times(user_mode(get_irq_regs())); + profile_tick(CPU_PROFILING); I'd like to move update_process_times()'s use of get_irq_regs() into itself, except that i386, alone of the archs, uses something other than user_mode(). Some notes on the interrupt handling in the drivers: (*) input_dev() is now gone entirely. The regs pointer is no longer stored in the input_dev struct. (*) finish_unlinks() in drivers/usb/host/ohci-q.c needs checking. It does something different depending on whether it's been supplied with a regs pointer or not. (*) Various IRQ handler function pointers have been moved to type irq_handler_t. Signed-Off-By: David Howells <dhowells@redhat.com> (cherry picked from 1b16e7ac850969f38b375e511e3fa2f474a33867 commit)
2006-10-05 21:55:46 +08:00
static irqreturn_t soc_intr(int irq, void *dev_id)
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
{
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;
[PATCH] drivers/fc4: kmalloc + memset -> kzalloc conversion Signed-off-by: Deepak Saxena <dsaxena@plexity.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-11-07 17:01:24 +08:00
s = kzalloc (sizeof (struct soc), GFP_KERNEL);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
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];
[PATCH] irq-flags: misc drivers: Use the new IRQF_ constants Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@elte.hu> Cc: "David S. Miller" <davem@davemloft.net> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-07-02 10:29:38 +08:00
if (request_irq (irq, soc_intr, IRQF_SHARED, "SOC", (void *)s)) {
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
soc_printk ("Cannot order irq %d to go\n", irq);
socs = s->next;
return;
}
[SPARC]: Kill __irq_itoa(). This ugly hack was long overdue to die. It was a way to print out Sparc interrupts in a more freindly format, since IRQ numbers were arbitrary opaque 32-bit integers which vectored into PIL levels. These 32-bit integers were not necessarily in the 0-->NR_IRQS range, but the PILs they vectored to were. The idea now is that we will increase NR_IRQS a little bit and use a virtual<-->real IRQ number mapping scheme similar to PowerPC. That makes this IRQ printing hack irrelevant, and furthermore only a handful of drivers actually used __irq_itoa() making it even less useful. Signed-off-by: David S. Miller <davem@davemloft.net>
2006-06-20 16:21:29 +08:00
SOD(("SOC uses IRQ %d\n", irq))
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
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");