From 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Sat, 16 Apr 2005 15:20:36 -0700 Subject: 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! --- drivers/fc4/soc.c | 766 ++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 766 insertions(+) create mode 100644 drivers/fc4/soc.c (limited to 'drivers/fc4/soc.c') diff --git a/drivers/fc4/soc.c b/drivers/fc4/soc.c new file mode 100644 index 00000000000..247b4630277 --- /dev/null +++ b/drivers/fc4/soc.c @@ -0,0 +1,766 @@ +/* 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 +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include +#include + +/* #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, struct pt_regs *regs) +{ + 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 = kmalloc (sizeof (struct soc), GFP_KERNEL); + if (s == NULL) + return; + memset (s, 0, sizeof(struct soc)); + 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, SA_SHIRQ, "SOC", (void *)s)) { + soc_printk ("Cannot order irq %d to go\n", irq); + socs = s->next; + return; + } + + SOD(("SOC 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, "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"); -- cgit v1.2.3