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qla_init.c
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qla_init.c
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/*
* QLogic Fibre Channel HBA Driver
* Copyright (c) 2003-2008 QLogic Corporation
*
* See LICENSE.qla2xxx for copyright and licensing details.
*/
#include "qla_def.h"
#include "qla_gbl.h"
#include <linux/delay.h>
#include <linux/slab.h>
#include <linux/vmalloc.h>
#include "qla_devtbl.h"
#ifdef CONFIG_SPARC
#include <asm/prom.h>
#endif
/*
* QLogic ISP2x00 Hardware Support Function Prototypes.
*/
static int qla2x00_isp_firmware(scsi_qla_host_t *);
static int qla2x00_setup_chip(scsi_qla_host_t *);
static int qla2x00_init_rings(scsi_qla_host_t *);
static int qla2x00_fw_ready(scsi_qla_host_t *);
static int qla2x00_configure_hba(scsi_qla_host_t *);
static int qla2x00_configure_loop(scsi_qla_host_t *);
static int qla2x00_configure_local_loop(scsi_qla_host_t *);
static int qla2x00_configure_fabric(scsi_qla_host_t *);
static int qla2x00_find_all_fabric_devs(scsi_qla_host_t *, struct list_head *);
static int qla2x00_device_resync(scsi_qla_host_t *);
static int qla2x00_fabric_dev_login(scsi_qla_host_t *, fc_port_t *,
uint16_t *);
static int qla2x00_restart_isp(scsi_qla_host_t *);
static int qla2x00_find_new_loop_id(scsi_qla_host_t *, fc_port_t *);
static struct qla_chip_state_84xx *qla84xx_get_chip(struct scsi_qla_host *);
static int qla84xx_init_chip(scsi_qla_host_t *);
static int qla25xx_init_queues(struct qla_hw_data *);
/* SRB Extensions ---------------------------------------------------------- */
static void
qla2x00_ctx_sp_timeout(unsigned long __data)
{
srb_t *sp = (srb_t *)__data;
struct srb_ctx *ctx;
struct srb_iocb *iocb;
fc_port_t *fcport = sp->fcport;
struct qla_hw_data *ha = fcport->vha->hw;
struct req_que *req;
unsigned long flags;
spin_lock_irqsave(&ha->hardware_lock, flags);
req = ha->req_q_map[0];
req->outstanding_cmds[sp->handle] = NULL;
ctx = sp->ctx;
iocb = ctx->u.iocb_cmd;
iocb->timeout(sp);
spin_unlock_irqrestore(&ha->hardware_lock, flags);
iocb->free(sp);
}
void
qla2x00_ctx_sp_free(srb_t *sp)
{
struct srb_ctx *ctx = sp->ctx;
struct srb_iocb *iocb = ctx->u.iocb_cmd;
del_timer_sync(&iocb->timer);
kfree(iocb);
kfree(ctx);
mempool_free(sp, sp->fcport->vha->hw->srb_mempool);
}
inline srb_t *
qla2x00_get_ctx_sp(scsi_qla_host_t *vha, fc_port_t *fcport, size_t size,
unsigned long tmo)
{
srb_t *sp;
struct qla_hw_data *ha = vha->hw;
struct srb_ctx *ctx;
struct srb_iocb *iocb;
sp = mempool_alloc(ha->srb_mempool, GFP_KERNEL);
if (!sp)
goto done;
ctx = kzalloc(size, GFP_KERNEL);
if (!ctx) {
mempool_free(sp, ha->srb_mempool);
sp = NULL;
goto done;
}
iocb = kzalloc(sizeof(struct srb_iocb), GFP_KERNEL);
if (!iocb) {
mempool_free(sp, ha->srb_mempool);
sp = NULL;
kfree(ctx);
goto done;
}
memset(sp, 0, sizeof(*sp));
sp->fcport = fcport;
sp->ctx = ctx;
ctx->u.iocb_cmd = iocb;
iocb->free = qla2x00_ctx_sp_free;
init_timer(&iocb->timer);
if (!tmo)
goto done;
iocb->timer.expires = jiffies + tmo * HZ;
iocb->timer.data = (unsigned long)sp;
iocb->timer.function = qla2x00_ctx_sp_timeout;
add_timer(&iocb->timer);
done:
return sp;
}
/* Asynchronous Login/Logout Routines -------------------------------------- */
#define ELS_TMO_2_RATOV(ha) ((ha)->r_a_tov / 10 * 2)
static void
qla2x00_async_iocb_timeout(srb_t *sp)
{
fc_port_t *fcport = sp->fcport;
struct srb_ctx *ctx = sp->ctx;
DEBUG2(printk(KERN_WARNING
"scsi(%ld:%x): Async-%s timeout.\n",
fcport->vha->host_no, sp->handle, ctx->name));
fcport->flags &= ~FCF_ASYNC_SENT;
if (ctx->type == SRB_LOGIN_CMD)
qla2x00_post_async_logout_work(fcport->vha, fcport, NULL);
}
static void
qla2x00_async_login_ctx_done(srb_t *sp)
{
struct srb_ctx *ctx = sp->ctx;
struct srb_iocb *lio = ctx->u.iocb_cmd;
qla2x00_post_async_login_done_work(sp->fcport->vha, sp->fcport,
lio->u.logio.data);
lio->free(sp);
}
int
qla2x00_async_login(struct scsi_qla_host *vha, fc_port_t *fcport,
uint16_t *data)
{
struct qla_hw_data *ha = vha->hw;
srb_t *sp;
struct srb_ctx *ctx;
struct srb_iocb *lio;
int rval;
rval = QLA_FUNCTION_FAILED;
sp = qla2x00_get_ctx_sp(vha, fcport, sizeof(struct srb_ctx),
ELS_TMO_2_RATOV(ha) + 2);
if (!sp)
goto done;
ctx = sp->ctx;
ctx->type = SRB_LOGIN_CMD;
ctx->name = "login";
lio = ctx->u.iocb_cmd;
lio->timeout = qla2x00_async_iocb_timeout;
lio->done = qla2x00_async_login_ctx_done;
lio->u.logio.flags |= SRB_LOGIN_COND_PLOGI;
if (data[1] & QLA_LOGIO_LOGIN_RETRIED)
lio->u.logio.flags |= SRB_LOGIN_RETRIED;
rval = qla2x00_start_sp(sp);
if (rval != QLA_SUCCESS)
goto done_free_sp;
DEBUG2(printk(KERN_DEBUG
"scsi(%ld:%x): Async-login - loop-id=%x portid=%02x%02x%02x "
"retries=%d.\n", fcport->vha->host_no, sp->handle, fcport->loop_id,
fcport->d_id.b.domain, fcport->d_id.b.area, fcport->d_id.b.al_pa,
fcport->login_retry));
return rval;
done_free_sp:
lio->free(sp);
done:
return rval;
}
static void
qla2x00_async_logout_ctx_done(srb_t *sp)
{
struct srb_ctx *ctx = sp->ctx;
struct srb_iocb *lio = ctx->u.iocb_cmd;
qla2x00_post_async_logout_done_work(sp->fcport->vha, sp->fcport,
lio->u.logio.data);
lio->free(sp);
}
int
qla2x00_async_logout(struct scsi_qla_host *vha, fc_port_t *fcport)
{
struct qla_hw_data *ha = vha->hw;
srb_t *sp;
struct srb_ctx *ctx;
struct srb_iocb *lio;
int rval;
rval = QLA_FUNCTION_FAILED;
sp = qla2x00_get_ctx_sp(vha, fcport, sizeof(struct srb_ctx),
ELS_TMO_2_RATOV(ha) + 2);
if (!sp)
goto done;
ctx = sp->ctx;
ctx->type = SRB_LOGOUT_CMD;
ctx->name = "logout";
lio = ctx->u.iocb_cmd;
lio->timeout = qla2x00_async_iocb_timeout;
lio->done = qla2x00_async_logout_ctx_done;
rval = qla2x00_start_sp(sp);
if (rval != QLA_SUCCESS)
goto done_free_sp;
DEBUG2(printk(KERN_DEBUG
"scsi(%ld:%x): Async-logout - loop-id=%x portid=%02x%02x%02x.\n",
fcport->vha->host_no, sp->handle, fcport->loop_id,
fcport->d_id.b.domain, fcport->d_id.b.area, fcport->d_id.b.al_pa));
return rval;
done_free_sp:
lio->free(sp);
done:
return rval;
}
static void
qla2x00_async_adisc_ctx_done(srb_t *sp)
{
struct srb_ctx *ctx = sp->ctx;
struct srb_iocb *lio = ctx->u.iocb_cmd;
qla2x00_post_async_adisc_done_work(sp->fcport->vha, sp->fcport,
lio->u.logio.data);
lio->free(sp);
}
int
qla2x00_async_adisc(struct scsi_qla_host *vha, fc_port_t *fcport,
uint16_t *data)
{
struct qla_hw_data *ha = vha->hw;
srb_t *sp;
struct srb_ctx *ctx;
struct srb_iocb *lio;
int rval;
rval = QLA_FUNCTION_FAILED;
sp = qla2x00_get_ctx_sp(vha, fcport, sizeof(struct srb_ctx),
ELS_TMO_2_RATOV(ha) + 2);
if (!sp)
goto done;
ctx = sp->ctx;
ctx->type = SRB_ADISC_CMD;
ctx->name = "adisc";
lio = ctx->u.iocb_cmd;
lio->timeout = qla2x00_async_iocb_timeout;
lio->done = qla2x00_async_adisc_ctx_done;
if (data[1] & QLA_LOGIO_LOGIN_RETRIED)
lio->u.logio.flags |= SRB_LOGIN_RETRIED;
rval = qla2x00_start_sp(sp);
if (rval != QLA_SUCCESS)
goto done_free_sp;
DEBUG2(printk(KERN_DEBUG
"scsi(%ld:%x): Async-adisc - loop-id=%x portid=%02x%02x%02x.\n",
fcport->vha->host_no, sp->handle, fcport->loop_id,
fcport->d_id.b.domain, fcport->d_id.b.area, fcport->d_id.b.al_pa));
return rval;
done_free_sp:
lio->free(sp);
done:
return rval;
}
static void
qla2x00_async_tm_cmd_ctx_done(srb_t *sp)
{
struct srb_ctx *ctx = sp->ctx;
struct srb_iocb *iocb = (struct srb_iocb *)ctx->u.iocb_cmd;
qla2x00_async_tm_cmd_done(sp->fcport->vha, sp->fcport, iocb);
iocb->free(sp);
}
int
qla2x00_async_tm_cmd(fc_port_t *fcport, uint32_t flags, uint32_t lun,
uint32_t tag)
{
struct scsi_qla_host *vha = fcport->vha;
struct qla_hw_data *ha = vha->hw;
srb_t *sp;
struct srb_ctx *ctx;
struct srb_iocb *tcf;
int rval;
rval = QLA_FUNCTION_FAILED;
sp = qla2x00_get_ctx_sp(vha, fcport, sizeof(struct srb_ctx),
ELS_TMO_2_RATOV(ha) + 2);
if (!sp)
goto done;
ctx = sp->ctx;
ctx->type = SRB_TM_CMD;
ctx->name = "tmf";
tcf = ctx->u.iocb_cmd;
tcf->u.tmf.flags = flags;
tcf->u.tmf.lun = lun;
tcf->u.tmf.data = tag;
tcf->timeout = qla2x00_async_iocb_timeout;
tcf->done = qla2x00_async_tm_cmd_ctx_done;
rval = qla2x00_start_sp(sp);
if (rval != QLA_SUCCESS)
goto done_free_sp;
DEBUG2(printk(KERN_DEBUG
"scsi(%ld:%x): Async-tmf - loop-id=%x portid=%02x%02x%02x.\n",
fcport->vha->host_no, sp->handle, fcport->loop_id,
fcport->d_id.b.domain, fcport->d_id.b.area, fcport->d_id.b.al_pa));
return rval;
done_free_sp:
tcf->free(sp);
done:
return rval;
}
static void
qla2x00_async_marker_ctx_done(srb_t *sp)
{
struct srb_ctx *ctx = sp->ctx;
struct srb_iocb *iocb = (struct srb_iocb *)ctx->u.iocb_cmd;
qla2x00_async_marker_done(sp->fcport->vha, sp->fcport, iocb);
iocb->free(sp);
}
int
qla2x00_async_marker(fc_port_t *fcport, uint16_t lun, uint8_t modif)
{
struct scsi_qla_host *vha = fcport->vha;
srb_t *sp;
struct srb_ctx *ctx;
struct srb_iocb *mrk;
int rval;
rval = QLA_FUNCTION_FAILED;
sp = qla2x00_get_ctx_sp(vha, fcport, sizeof(struct srb_ctx), 0);
if (!sp)
goto done;
ctx = sp->ctx;
ctx->type = SRB_MARKER_CMD;
ctx->name = "marker";
mrk = ctx->u.iocb_cmd;
mrk->u.marker.lun = lun;
mrk->u.marker.modif = modif;
mrk->timeout = qla2x00_async_iocb_timeout;
mrk->done = qla2x00_async_marker_ctx_done;
rval = qla2x00_start_sp(sp);
if (rval != QLA_SUCCESS)
goto done_free_sp;
DEBUG2(printk(KERN_DEBUG
"scsi(%ld:%x): Async-marker - loop-id=%x "
"portid=%02x%02x%02x.\n",
fcport->vha->host_no, sp->handle, fcport->loop_id,
fcport->d_id.b.domain, fcport->d_id.b.area,
fcport->d_id.b.al_pa));
return rval;
done_free_sp:
mrk->free(sp);
done:
return rval;
}
void
qla2x00_async_login_done(struct scsi_qla_host *vha, fc_port_t *fcport,
uint16_t *data)
{
int rval;
switch (data[0]) {
case MBS_COMMAND_COMPLETE:
if (fcport->flags & FCF_FCP2_DEVICE) {
fcport->flags |= FCF_ASYNC_SENT;
qla2x00_post_async_adisc_work(vha, fcport, data);
break;
}
qla2x00_update_fcport(vha, fcport);
break;
case MBS_COMMAND_ERROR:
fcport->flags &= ~FCF_ASYNC_SENT;
if (data[1] & QLA_LOGIO_LOGIN_RETRIED)
set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
else
qla2x00_mark_device_lost(vha, fcport, 1, 0);
break;
case MBS_PORT_ID_USED:
fcport->loop_id = data[1];
qla2x00_post_async_login_work(vha, fcport, NULL);
break;
case MBS_LOOP_ID_USED:
fcport->loop_id++;
rval = qla2x00_find_new_loop_id(vha, fcport);
if (rval != QLA_SUCCESS) {
fcport->flags &= ~FCF_ASYNC_SENT;
qla2x00_mark_device_lost(vha, fcport, 1, 0);
break;
}
qla2x00_post_async_login_work(vha, fcport, NULL);
break;
}
return;
}
void
qla2x00_async_logout_done(struct scsi_qla_host *vha, fc_port_t *fcport,
uint16_t *data)
{
qla2x00_mark_device_lost(vha, fcport, 1, 0);
return;
}
void
qla2x00_async_adisc_done(struct scsi_qla_host *vha, fc_port_t *fcport,
uint16_t *data)
{
if (data[0] == MBS_COMMAND_COMPLETE) {
qla2x00_update_fcport(vha, fcport);
return;
}
/* Retry login. */
fcport->flags &= ~FCF_ASYNC_SENT;
if (data[1] & QLA_LOGIO_LOGIN_RETRIED)
set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
else
qla2x00_mark_device_lost(vha, fcport, 1, 0);
return;
}
void
qla2x00_async_tm_cmd_done(struct scsi_qla_host *vha, fc_port_t *fcport,
struct srb_iocb *iocb)
{
int rval;
uint32_t flags;
uint16_t lun;
flags = iocb->u.tmf.flags;
lun = (uint16_t)iocb->u.tmf.lun;
/* Issue Marker IOCB */
rval = qla2x00_async_marker(fcport, lun,
flags == TCF_LUN_RESET ? MK_SYNC_ID_LUN : MK_SYNC_ID);
if ((rval != QLA_SUCCESS) || iocb->u.tmf.data) {
DEBUG2_3_11(printk(KERN_WARNING
"%s(%ld): TM IOCB failed (%x).\n",
__func__, vha->host_no, rval));
}
return;
}
void
qla2x00_async_marker_done(struct scsi_qla_host *vha, fc_port_t *fcport,
struct srb_iocb *iocb)
{
/*
* Currently we dont have any specific post response processing
* for this IOCB. We'll just return success or failed
* depending on whether the IOCB command succeeded or failed.
*/
if (iocb->u.tmf.data) {
DEBUG2_3_11(printk(KERN_WARNING
"%s(%ld): Marker IOCB failed (%x).\n",
__func__, vha->host_no, iocb->u.tmf.data));
}
return;
}
/****************************************************************************/
/* QLogic ISP2x00 Hardware Support Functions. */
/****************************************************************************/
/*
* qla2x00_initialize_adapter
* Initialize board.
*
* Input:
* ha = adapter block pointer.
*
* Returns:
* 0 = success
*/
int
qla2x00_initialize_adapter(scsi_qla_host_t *vha)
{
int rval;
struct qla_hw_data *ha = vha->hw;
struct req_que *req = ha->req_q_map[0];
/* Clear adapter flags. */
vha->flags.online = 0;
ha->flags.chip_reset_done = 0;
vha->flags.reset_active = 0;
ha->flags.pci_channel_io_perm_failure = 0;
ha->flags.eeh_busy = 0;
atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
atomic_set(&vha->loop_state, LOOP_DOWN);
vha->device_flags = DFLG_NO_CABLE;
vha->dpc_flags = 0;
vha->flags.management_server_logged_in = 0;
vha->marker_needed = 0;
ha->isp_abort_cnt = 0;
ha->beacon_blink_led = 0;
set_bit(0, ha->req_qid_map);
set_bit(0, ha->rsp_qid_map);
qla_printk(KERN_INFO, ha, "Configuring PCI space...\n");
rval = ha->isp_ops->pci_config(vha);
if (rval) {
DEBUG2(printk("scsi(%ld): Unable to configure PCI space.\n",
vha->host_no));
return (rval);
}
ha->isp_ops->reset_chip(vha);
rval = qla2xxx_get_flash_info(vha);
if (rval) {
DEBUG2(printk("scsi(%ld): Unable to validate FLASH data.\n",
vha->host_no));
return (rval);
}
ha->isp_ops->get_flash_version(vha, req->ring);
qla_printk(KERN_INFO, ha, "Configure NVRAM parameters...\n");
ha->isp_ops->nvram_config(vha);
if (ha->flags.disable_serdes) {
/* Mask HBA via NVRAM settings? */
qla_printk(KERN_INFO, ha, "Masking HBA WWPN "
"%02x%02x%02x%02x%02x%02x%02x%02x (via NVRAM).\n",
vha->port_name[0], vha->port_name[1],
vha->port_name[2], vha->port_name[3],
vha->port_name[4], vha->port_name[5],
vha->port_name[6], vha->port_name[7]);
return QLA_FUNCTION_FAILED;
}
qla_printk(KERN_INFO, ha, "Verifying loaded RISC code...\n");
if (qla2x00_isp_firmware(vha) != QLA_SUCCESS) {
rval = ha->isp_ops->chip_diag(vha);
if (rval)
return (rval);
rval = qla2x00_setup_chip(vha);
if (rval)
return (rval);
}
if (IS_QLA84XX(ha)) {
ha->cs84xx = qla84xx_get_chip(vha);
if (!ha->cs84xx) {
qla_printk(KERN_ERR, ha,
"Unable to configure ISP84XX.\n");
return QLA_FUNCTION_FAILED;
}
}
rval = qla2x00_init_rings(vha);
ha->flags.chip_reset_done = 1;
if (rval == QLA_SUCCESS && IS_QLA84XX(ha)) {
/* Issue verify 84xx FW IOCB to complete 84xx initialization */
rval = qla84xx_init_chip(vha);
if (rval != QLA_SUCCESS) {
qla_printk(KERN_ERR, ha,
"Unable to initialize ISP84XX.\n");
qla84xx_put_chip(vha);
}
}
if (IS_QLA24XX_TYPE(ha) || IS_QLA25XX(ha)) {
if (qla24xx_read_fcp_prio_cfg(vha))
qla_printk(KERN_ERR, ha,
"Unable to read FCP priority data.\n");
}
return (rval);
}
/**
* qla2100_pci_config() - Setup ISP21xx PCI configuration registers.
* @ha: HA context
*
* Returns 0 on success.
*/
int
qla2100_pci_config(scsi_qla_host_t *vha)
{
uint16_t w;
unsigned long flags;
struct qla_hw_data *ha = vha->hw;
struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
pci_set_master(ha->pdev);
pci_try_set_mwi(ha->pdev);
pci_read_config_word(ha->pdev, PCI_COMMAND, &w);
w |= (PCI_COMMAND_PARITY | PCI_COMMAND_SERR);
pci_write_config_word(ha->pdev, PCI_COMMAND, w);
pci_disable_rom(ha->pdev);
/* Get PCI bus information. */
spin_lock_irqsave(&ha->hardware_lock, flags);
ha->pci_attr = RD_REG_WORD(®->ctrl_status);
spin_unlock_irqrestore(&ha->hardware_lock, flags);
return QLA_SUCCESS;
}
/**
* qla2300_pci_config() - Setup ISP23xx PCI configuration registers.
* @ha: HA context
*
* Returns 0 on success.
*/
int
qla2300_pci_config(scsi_qla_host_t *vha)
{
uint16_t w;
unsigned long flags = 0;
uint32_t cnt;
struct qla_hw_data *ha = vha->hw;
struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
pci_set_master(ha->pdev);
pci_try_set_mwi(ha->pdev);
pci_read_config_word(ha->pdev, PCI_COMMAND, &w);
w |= (PCI_COMMAND_PARITY | PCI_COMMAND_SERR);
if (IS_QLA2322(ha) || IS_QLA6322(ha))
w &= ~PCI_COMMAND_INTX_DISABLE;
pci_write_config_word(ha->pdev, PCI_COMMAND, w);
/*
* If this is a 2300 card and not 2312, reset the
* COMMAND_INVALIDATE due to a bug in the 2300. Unfortunately,
* the 2310 also reports itself as a 2300 so we need to get the
* fb revision level -- a 6 indicates it really is a 2300 and
* not a 2310.
*/
if (IS_QLA2300(ha)) {
spin_lock_irqsave(&ha->hardware_lock, flags);
/* Pause RISC. */
WRT_REG_WORD(®->hccr, HCCR_PAUSE_RISC);
for (cnt = 0; cnt < 30000; cnt++) {
if ((RD_REG_WORD(®->hccr) & HCCR_RISC_PAUSE) != 0)
break;
udelay(10);
}
/* Select FPM registers. */
WRT_REG_WORD(®->ctrl_status, 0x20);
RD_REG_WORD(®->ctrl_status);
/* Get the fb rev level */
ha->fb_rev = RD_FB_CMD_REG(ha, reg);
if (ha->fb_rev == FPM_2300)
pci_clear_mwi(ha->pdev);
/* Deselect FPM registers. */
WRT_REG_WORD(®->ctrl_status, 0x0);
RD_REG_WORD(®->ctrl_status);
/* Release RISC module. */
WRT_REG_WORD(®->hccr, HCCR_RELEASE_RISC);
for (cnt = 0; cnt < 30000; cnt++) {
if ((RD_REG_WORD(®->hccr) & HCCR_RISC_PAUSE) == 0)
break;
udelay(10);
}
spin_unlock_irqrestore(&ha->hardware_lock, flags);
}
pci_write_config_byte(ha->pdev, PCI_LATENCY_TIMER, 0x80);
pci_disable_rom(ha->pdev);
/* Get PCI bus information. */
spin_lock_irqsave(&ha->hardware_lock, flags);
ha->pci_attr = RD_REG_WORD(®->ctrl_status);
spin_unlock_irqrestore(&ha->hardware_lock, flags);
return QLA_SUCCESS;
}
/**
* qla24xx_pci_config() - Setup ISP24xx PCI configuration registers.
* @ha: HA context
*
* Returns 0 on success.
*/
int
qla24xx_pci_config(scsi_qla_host_t *vha)
{
uint16_t w;
unsigned long flags = 0;
struct qla_hw_data *ha = vha->hw;
struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
pci_set_master(ha->pdev);
pci_try_set_mwi(ha->pdev);
pci_read_config_word(ha->pdev, PCI_COMMAND, &w);
w |= (PCI_COMMAND_PARITY | PCI_COMMAND_SERR);
w &= ~PCI_COMMAND_INTX_DISABLE;
pci_write_config_word(ha->pdev, PCI_COMMAND, w);
pci_write_config_byte(ha->pdev, PCI_LATENCY_TIMER, 0x80);
/* PCI-X -- adjust Maximum Memory Read Byte Count (2048). */
if (pci_find_capability(ha->pdev, PCI_CAP_ID_PCIX))
pcix_set_mmrbc(ha->pdev, 2048);
/* PCIe -- adjust Maximum Read Request Size (2048). */
if (pci_find_capability(ha->pdev, PCI_CAP_ID_EXP))
pcie_set_readrq(ha->pdev, 2048);
pci_disable_rom(ha->pdev);
ha->chip_revision = ha->pdev->revision;
/* Get PCI bus information. */
spin_lock_irqsave(&ha->hardware_lock, flags);
ha->pci_attr = RD_REG_DWORD(®->ctrl_status);
spin_unlock_irqrestore(&ha->hardware_lock, flags);
return QLA_SUCCESS;
}
/**
* qla25xx_pci_config() - Setup ISP25xx PCI configuration registers.
* @ha: HA context
*
* Returns 0 on success.
*/
int
qla25xx_pci_config(scsi_qla_host_t *vha)
{
uint16_t w;
struct qla_hw_data *ha = vha->hw;
pci_set_master(ha->pdev);
pci_try_set_mwi(ha->pdev);
pci_read_config_word(ha->pdev, PCI_COMMAND, &w);
w |= (PCI_COMMAND_PARITY | PCI_COMMAND_SERR);
w &= ~PCI_COMMAND_INTX_DISABLE;
pci_write_config_word(ha->pdev, PCI_COMMAND, w);
/* PCIe -- adjust Maximum Read Request Size (2048). */
if (pci_find_capability(ha->pdev, PCI_CAP_ID_EXP))
pcie_set_readrq(ha->pdev, 2048);
pci_disable_rom(ha->pdev);
ha->chip_revision = ha->pdev->revision;
return QLA_SUCCESS;
}
/**
* qla2x00_isp_firmware() - Choose firmware image.
* @ha: HA context
*
* Returns 0 on success.
*/
static int
qla2x00_isp_firmware(scsi_qla_host_t *vha)
{
int rval;
uint16_t loop_id, topo, sw_cap;
uint8_t domain, area, al_pa;
struct qla_hw_data *ha = vha->hw;
/* Assume loading risc code */
rval = QLA_FUNCTION_FAILED;
if (ha->flags.disable_risc_code_load) {
DEBUG2(printk("scsi(%ld): RISC CODE NOT loaded\n",
vha->host_no));
qla_printk(KERN_INFO, ha, "RISC CODE NOT loaded\n");
/* Verify checksum of loaded RISC code. */
rval = qla2x00_verify_checksum(vha, ha->fw_srisc_address);
if (rval == QLA_SUCCESS) {
/* And, verify we are not in ROM code. */
rval = qla2x00_get_adapter_id(vha, &loop_id, &al_pa,
&area, &domain, &topo, &sw_cap);
}
}
if (rval) {
DEBUG2_3(printk("scsi(%ld): **** Load RISC code ****\n",
vha->host_no));
}
return (rval);
}
/**
* qla2x00_reset_chip() - Reset ISP chip.
* @ha: HA context
*
* Returns 0 on success.
*/
void
qla2x00_reset_chip(scsi_qla_host_t *vha)
{
unsigned long flags = 0;
struct qla_hw_data *ha = vha->hw;
struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
uint32_t cnt;
uint16_t cmd;
if (unlikely(pci_channel_offline(ha->pdev)))
return;
ha->isp_ops->disable_intrs(ha);
spin_lock_irqsave(&ha->hardware_lock, flags);
/* Turn off master enable */
cmd = 0;
pci_read_config_word(ha->pdev, PCI_COMMAND, &cmd);
cmd &= ~PCI_COMMAND_MASTER;
pci_write_config_word(ha->pdev, PCI_COMMAND, cmd);
if (!IS_QLA2100(ha)) {
/* Pause RISC. */
WRT_REG_WORD(®->hccr, HCCR_PAUSE_RISC);
if (IS_QLA2200(ha) || IS_QLA2300(ha)) {
for (cnt = 0; cnt < 30000; cnt++) {
if ((RD_REG_WORD(®->hccr) &
HCCR_RISC_PAUSE) != 0)
break;
udelay(100);
}
} else {
RD_REG_WORD(®->hccr); /* PCI Posting. */
udelay(10);
}
/* Select FPM registers. */
WRT_REG_WORD(®->ctrl_status, 0x20);
RD_REG_WORD(®->ctrl_status); /* PCI Posting. */
/* FPM Soft Reset. */
WRT_REG_WORD(®->fpm_diag_config, 0x100);
RD_REG_WORD(®->fpm_diag_config); /* PCI Posting. */
/* Toggle Fpm Reset. */
if (!IS_QLA2200(ha)) {
WRT_REG_WORD(®->fpm_diag_config, 0x0);
RD_REG_WORD(®->fpm_diag_config); /* PCI Posting. */
}
/* Select frame buffer registers. */
WRT_REG_WORD(®->ctrl_status, 0x10);
RD_REG_WORD(®->ctrl_status); /* PCI Posting. */
/* Reset frame buffer FIFOs. */
if (IS_QLA2200(ha)) {
WRT_FB_CMD_REG(ha, reg, 0xa000);
RD_FB_CMD_REG(ha, reg); /* PCI Posting. */
} else {
WRT_FB_CMD_REG(ha, reg, 0x00fc);
/* Read back fb_cmd until zero or 3 seconds max */
for (cnt = 0; cnt < 3000; cnt++) {
if ((RD_FB_CMD_REG(ha, reg) & 0xff) == 0)
break;
udelay(100);
}
}
/* Select RISC module registers. */
WRT_REG_WORD(®->ctrl_status, 0);
RD_REG_WORD(®->ctrl_status); /* PCI Posting. */
/* Reset RISC processor. */
WRT_REG_WORD(®->hccr, HCCR_RESET_RISC);
RD_REG_WORD(®->hccr); /* PCI Posting. */
/* Release RISC processor. */
WRT_REG_WORD(®->hccr, HCCR_RELEASE_RISC);
RD_REG_WORD(®->hccr); /* PCI Posting. */
}
WRT_REG_WORD(®->hccr, HCCR_CLR_RISC_INT);
WRT_REG_WORD(®->hccr, HCCR_CLR_HOST_INT);
/* Reset ISP chip. */
WRT_REG_WORD(®->ctrl_status, CSR_ISP_SOFT_RESET);
/* Wait for RISC to recover from reset. */
if (IS_QLA2100(ha) || IS_QLA2200(ha) || IS_QLA2300(ha)) {
/*
* It is necessary to for a delay here since the card doesn't
* respond to PCI reads during a reset. On some architectures
* this will result in an MCA.
*/
udelay(20);
for (cnt = 30000; cnt; cnt--) {
if ((RD_REG_WORD(®->ctrl_status) &
CSR_ISP_SOFT_RESET) == 0)
break;
udelay(100);
}
} else
udelay(10);
/* Reset RISC processor. */
WRT_REG_WORD(®->hccr, HCCR_RESET_RISC);
WRT_REG_WORD(®->semaphore, 0);
/* Release RISC processor. */
WRT_REG_WORD(®->hccr, HCCR_RELEASE_RISC);
RD_REG_WORD(®->hccr); /* PCI Posting. */
if (IS_QLA2100(ha) || IS_QLA2200(ha) || IS_QLA2300(ha)) {
for (cnt = 0; cnt < 30000; cnt++) {
if (RD_MAILBOX_REG(ha, reg, 0) != MBS_BUSY)
break;
udelay(100);
}
} else
udelay(100);
/* Turn on master enable */
cmd |= PCI_COMMAND_MASTER;
pci_write_config_word(ha->pdev, PCI_COMMAND, cmd);
/* Disable RISC pause on FPM parity error. */
if (!IS_QLA2100(ha)) {
WRT_REG_WORD(®->hccr, HCCR_DISABLE_PARITY_PAUSE);
RD_REG_WORD(®->hccr); /* PCI Posting. */
}
spin_unlock_irqrestore(&ha->hardware_lock, flags);
}
/**
* qla24xx_reset_risc() - Perform full reset of ISP24xx RISC.
* @ha: HA context
*
* Returns 0 on success.