/**
* qla2x00_process_response_queue() - Process response queue entries.
* @ha: SCSI driver HA context
*/
void
qla2x00_process_response_queue(struct scsi_qla_host *ha)
{
device_reg_t *reg = ha->iobase;
sts_entry_t *pkt;
uint16_t handle_cnt;
uint16_t cnt;
if (!ha->flags.online)
return;
while (ha->response_ring_ptr->signature != RESPONSE_PROCESSED) {
pkt = (sts_entry_t *)ha->response_ring_ptr;
ha->rsp_ring_index++;
if (ha->rsp_ring_index == ha->response_q_length) {
ha->rsp_ring_index = 0;
ha->response_ring_ptr = ha->response_ring;
} else {
ha->response_ring_ptr++;
}
if (pkt->entry_status != 0) {
DEBUG3(printk(KERN_INFO
"scsi(%ld): Process error entry.\n", ha->host_no));
qla2x00_error_entry(ha, pkt);
((response_t *)pkt)->signature = RESPONSE_PROCESSED;
wmb();
continue;
}
switch (pkt->entry_type) {
case STATUS_TYPE:
qla2x00_status_entry(ha, pkt);
break;
case STATUS_TYPE_21:
handle_cnt = ((sts21_entry_t *)pkt)->handle_count;
for (cnt = 0; cnt < handle_cnt; cnt++) {
qla2x00_process_completed_request(ha,
((sts21_entry_t *)pkt)->handle[cnt]);
}
break;
case STATUS_TYPE_22:
handle_cnt = ((sts22_entry_t *)pkt)->handle_count;
for (cnt = 0; cnt < handle_cnt; cnt++) {
qla2x00_process_completed_request(ha,
((sts22_entry_t *)pkt)->handle[cnt]);
}
break;
case STATUS_CONT_TYPE:
qla2x00_status_cont_entry(ha, (sts_cont_entry_t *)pkt);
break;
case MS_IOCB_TYPE:
qla2x00_ms_entry(ha, (ms_iocb_entry_t *)pkt);
break;
case MBX_IOCB_TYPE:
if (!IS_QLA2100(ha) && !IS_QLA2200(ha) &&
!IS_QLA6312(ha) && !IS_QLA6322(ha)) {
if (pkt->sys_define == SOURCE_ASYNC_IOCB) {
qla2x00_process_iodesc(ha,
(struct mbx_entry *)pkt);
} else {
/* MBX IOCB Type Not Supported. */
DEBUG4(printk(KERN_WARNING
"scsi(%ld): Received unknown MBX "
"IOCB response pkt type=%x "
"source=%x entry status=%x.\n",
ha->host_no, pkt->entry_type,
pkt->sys_define,
pkt->entry_status));
}
break;
}
/* Fallthrough. */
default:
/* Type Not Supported. */
DEBUG4(printk(KERN_WARNING
"scsi(%ld): Received unknown response pkt type %x "
"entry status=%x.\n",
ha->host_no, pkt->entry_type, pkt->entry_status));
break;
}
((response_t *)pkt)->signature = RESPONSE_PROCESSED;
wmb();
}
/* Adjust ring index */
WRT_REG_WORD(ISP_RSP_Q_OUT(ha, reg), ha->rsp_ring_index);
}
/**
* 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;
}
/**
* qla2x00_async_event() - Process aynchronous events.
* @ha: SCSI driver HA context
* @mb0: Mailbox0 register
*/
static void
qla2x00_async_event(scsi_qla_host_t *ha, uint32_t mbx)
{
static char *link_speeds[5] = { "1", "2", "4", "?", "10" };
char *link_speed;
uint16_t mb[4];
uint16_t handle_cnt;
uint16_t cnt;
uint32_t handles[5];
device_reg_t *reg = ha->iobase;
uint32_t rscn_entry, host_pid;
uint8_t rscn_queue_index;
/* Setup to process RIO completion. */
handle_cnt = 0;
mb[0] = LSW(mbx);
switch (mb[0]) {
case MBA_SCSI_COMPLETION:
if (IS_QLA2100(ha) || IS_QLA2200(ha))
handles[0] = le32_to_cpu(
((uint32_t)(RD_MAILBOX_REG(ha, reg, 2) << 16)) |
RD_MAILBOX_REG(ha, reg, 1));
else
handles[0] = le32_to_cpu(
((uint32_t)(RD_MAILBOX_REG(ha, reg, 2) << 16)) |
MSW(mbx));
handle_cnt = 1;
break;
case MBA_CMPLT_1_16BIT:
if (IS_QLA2100(ha) || IS_QLA2200(ha))
handles[0] = (uint32_t)RD_MAILBOX_REG(ha, reg, 1);
else
handles[0] = MSW(mbx);
handle_cnt = 1;
mb[0] = MBA_SCSI_COMPLETION;
break;
case MBA_CMPLT_2_16BIT:
handles[0] = (uint32_t)RD_MAILBOX_REG(ha, reg, 1);
handles[1] = (uint32_t)RD_MAILBOX_REG(ha, reg, 2);
handle_cnt = 2;
mb[0] = MBA_SCSI_COMPLETION;
break;
case MBA_CMPLT_3_16BIT:
handles[0] = (uint32_t)RD_MAILBOX_REG(ha, reg, 1);
handles[1] = (uint32_t)RD_MAILBOX_REG(ha, reg, 2);
handles[2] = (uint32_t)RD_MAILBOX_REG(ha, reg, 3);
handle_cnt = 3;
mb[0] = MBA_SCSI_COMPLETION;
break;
case MBA_CMPLT_4_16BIT:
handles[0] = (uint32_t)RD_MAILBOX_REG(ha, reg, 1);
handles[1] = (uint32_t)RD_MAILBOX_REG(ha, reg, 2);
handles[2] = (uint32_t)RD_MAILBOX_REG(ha, reg, 3);
handles[3] = (uint32_t)RD_MAILBOX_REG(ha, reg, 6);
handle_cnt = 4;
mb[0] = MBA_SCSI_COMPLETION;
break;
case MBA_CMPLT_5_16BIT:
handles[0] = (uint32_t)RD_MAILBOX_REG(ha, reg, 1);
handles[1] = (uint32_t)RD_MAILBOX_REG(ha, reg, 2);
handles[2] = (uint32_t)RD_MAILBOX_REG(ha, reg, 3);
handles[3] = (uint32_t)RD_MAILBOX_REG(ha, reg, 6);
handles[4] = (uint32_t)RD_MAILBOX_REG(ha, reg, 7);
handle_cnt = 5;
mb[0] = MBA_SCSI_COMPLETION;
break;
case MBA_CMPLT_2_32BIT:
handles[0] = le32_to_cpu(
((uint32_t)(RD_MAILBOX_REG(ha, reg, 2) << 16)) |
RD_MAILBOX_REG(ha, reg, 1));
handles[1] = le32_to_cpu(
((uint32_t)(RD_MAILBOX_REG(ha, reg, 7) << 16)) |
RD_MAILBOX_REG(ha, reg, 6));
handle_cnt = 2;
mb[0] = MBA_SCSI_COMPLETION;
break;
default:
break;
}
mb[0] = LSW(mbx);
switch (mb[0]) {
case MBA_SCSI_COMPLETION: /* Fast Post */
if (!ha->flags.online)
break;
for (cnt = 0; cnt < handle_cnt; cnt++)
qla2x00_process_completed_request(ha, handles[cnt]);
break;
case MBA_RESET: /* Reset */
DEBUG2(printk("scsi(%ld): Asynchronous RESET.\n", ha->host_no));
set_bit(RESET_MARKER_NEEDED, &ha->dpc_flags);
break;
case MBA_SYSTEM_ERR: /* System Error */
mb[1] = RD_MAILBOX_REG(ha, reg, 1);
mb[2] = RD_MAILBOX_REG(ha, reg, 2);
mb[3] = RD_MAILBOX_REG(ha, reg, 3);
qla_printk(KERN_INFO, ha,
"ISP System Error - mbx1=%xh mbx2=%xh mbx3=%xh.\n",
mb[1], mb[2], mb[3]);
if (IS_QLA2100(ha) || IS_QLA2200(ha))
qla2100_fw_dump(ha, 1);
else
qla2300_fw_dump(ha, 1);
set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
break;
case MBA_REQ_TRANSFER_ERR: /* Request Transfer Error */
DEBUG2(printk("scsi(%ld): ISP Request Transfer Error.\n",
ha->host_no));
qla_printk(KERN_WARNING, ha, "ISP Request Transfer Error.\n");
set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
break;
case MBA_RSP_TRANSFER_ERR: /* Response Transfer Error */
DEBUG2(printk("scsi(%ld): ISP Response Transfer Error.\n",
ha->host_no));
qla_printk(KERN_WARNING, ha, "ISP Response Transfer Error.\n");
set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
break;
case MBA_WAKEUP_THRES: /* Request Queue Wake-up */
DEBUG2(printk("scsi(%ld): Asynchronous WAKEUP_THRES.\n",
ha->host_no));
break;
case MBA_LIP_OCCURRED: /* Loop Initialization Procedure */
mb[1] = RD_MAILBOX_REG(ha, reg, 1);
DEBUG2(printk("scsi(%ld): LIP occured (%x).\n", ha->host_no,
mb[1]));
qla_printk(KERN_INFO, ha, "LIP occured (%x).\n", mb[1]);
if (atomic_read(&ha->loop_state) != LOOP_DOWN) {
atomic_set(&ha->loop_state, LOOP_DOWN);
atomic_set(&ha->loop_down_timer, LOOP_DOWN_TIME);
qla2x00_mark_all_devices_lost(ha);
}
set_bit(REGISTER_FC4_NEEDED, &ha->dpc_flags);
ha->flags.management_server_logged_in = 0;
/* Update AEN queue. */
qla2x00_enqueue_aen(ha, MBA_LIP_OCCURRED, NULL);
ha->total_lip_cnt++;
break;
case MBA_LOOP_UP: /* Loop Up Event */
mb[1] = RD_MAILBOX_REG(ha, reg, 1);
ha->link_data_rate = 0;
if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
link_speed = link_speeds[0];
} else {
link_speed = link_speeds[3];
if (mb[1] < 5)
link_speed = link_speeds[mb[1]];
ha->link_data_rate = mb[1];
}
DEBUG2(printk("scsi(%ld): Asynchronous LOOP UP (%s Gbps).\n",
ha->host_no, link_speed));
qla_printk(KERN_INFO, ha, "LOOP UP detected (%s Gbps).\n",
link_speed);
ha->flags.management_server_logged_in = 0;
/* Update AEN queue. */
qla2x00_enqueue_aen(ha, MBA_LOOP_UP, NULL);
break;
case MBA_LOOP_DOWN: /* Loop Down Event */
DEBUG2(printk("scsi(%ld): Asynchronous LOOP DOWN.\n",
ha->host_no));
qla_printk(KERN_INFO, ha, "LOOP DOWN detected.\n");
if (atomic_read(&ha->loop_state) != LOOP_DOWN) {
atomic_set(&ha->loop_state, LOOP_DOWN);
atomic_set(&ha->loop_down_timer, LOOP_DOWN_TIME);
ha->device_flags |= DFLG_NO_CABLE;
qla2x00_mark_all_devices_lost(ha);
}
ha->flags.management_server_logged_in = 0;
ha->link_data_rate = 0;
/* Update AEN queue. */
qla2x00_enqueue_aen(ha, MBA_LOOP_DOWN, NULL);
break;
case MBA_LIP_RESET: /* LIP reset occurred */
mb[1] = RD_MAILBOX_REG(ha, reg, 1);
DEBUG2(printk("scsi(%ld): Asynchronous LIP RESET (%x).\n",
ha->host_no, mb[1]));
qla_printk(KERN_INFO, ha,
"LIP reset occured (%x).\n", mb[1]);
if (atomic_read(&ha->loop_state) != LOOP_DOWN) {
atomic_set(&ha->loop_state, LOOP_DOWN);
atomic_set(&ha->loop_down_timer, LOOP_DOWN_TIME);
qla2x00_mark_all_devices_lost(ha);
}
set_bit(RESET_MARKER_NEEDED, &ha->dpc_flags);
ha->operating_mode = LOOP;
ha->flags.management_server_logged_in = 0;
/* Update AEN queue. */
qla2x00_enqueue_aen(ha, MBA_LIP_RESET, NULL);
ha->total_lip_cnt++;
break;
case MBA_POINT_TO_POINT: /* Point-to-Point */
if (IS_QLA2100(ha))
break;
DEBUG2(printk("scsi(%ld): Asynchronous P2P MODE received.\n",
ha->host_no));
/*
* Until there's a transition from loop down to loop up, treat
* this as loop down only.
*/
if (atomic_read(&ha->loop_state) != LOOP_DOWN) {
atomic_set(&ha->loop_state, LOOP_DOWN);
if (!atomic_read(&ha->loop_down_timer))
atomic_set(&ha->loop_down_timer,
LOOP_DOWN_TIME);
qla2x00_mark_all_devices_lost(ha);
}
if (!(test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags))) {
set_bit(RESET_MARKER_NEEDED, &ha->dpc_flags);
}
set_bit(REGISTER_FC4_NEEDED, &ha->dpc_flags);
break;
case MBA_CHG_IN_CONNECTION: /* Change in connection mode */
if (IS_QLA2100(ha))
break;
mb[1] = RD_MAILBOX_REG(ha, reg, 1);
DEBUG2(printk("scsi(%ld): Asynchronous Change In Connection "
"received.\n",
ha->host_no));
qla_printk(KERN_INFO, ha,
"Configuration change detected: value=%x.\n", mb[1]);
if (atomic_read(&ha->loop_state) != LOOP_DOWN) {
atomic_set(&ha->loop_state, LOOP_DOWN);
if (!atomic_read(&ha->loop_down_timer))
atomic_set(&ha->loop_down_timer,
LOOP_DOWN_TIME);
qla2x00_mark_all_devices_lost(ha);
}
set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
set_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags);
break;
case MBA_PORT_UPDATE: /* Port database update */
mb[1] = RD_MAILBOX_REG(ha, reg, 1);
mb[2] = RD_MAILBOX_REG(ha, reg, 2);
/*
* If a single remote port just logged into (or logged out of)
* us, create a new entry in our rscn fcports list and handle
* the event like an RSCN.
*/
if (!IS_QLA2100(ha) && !IS_QLA2200(ha) && !IS_QLA6312(ha) &&
!IS_QLA6322(ha) && ha->flags.init_done && mb[1] != 0xffff &&
((ha->operating_mode == P2P && mb[1] != 0) ||
(ha->operating_mode != P2P && mb[1] !=
SNS_FIRST_LOOP_ID)) && (mb[2] == 6 || mb[2] == 7)) {
int rval;
fc_port_t *rscn_fcport;
/* Create new fcport for login. */
rscn_fcport = qla2x00_alloc_rscn_fcport(ha, GFP_ATOMIC);
if (rscn_fcport) {
DEBUG14(printk("scsi(%ld): Port Update -- "
"creating RSCN fcport %p for login.\n",
ha->host_no, rscn_fcport));
rscn_fcport->loop_id = mb[1];
rscn_fcport->d_id.b24 = INVALID_PORT_ID;
atomic_set(&rscn_fcport->state,
FCS_DEVICE_LOST);
list_add_tail(&rscn_fcport->list,
&ha->rscn_fcports);
rval = qla2x00_handle_port_rscn(ha, 0,
rscn_fcport, 1);
if (rval == QLA_SUCCESS)
break;
} else {
DEBUG14(printk("scsi(%ld): Port Update -- "
"-- unable to allocate RSCN fcport "
"login.\n", ha->host_no));
}
}
/*
* If PORT UPDATE is global (recieved LIP_OCCURED/LIP_RESET
* event etc. earlier indicating loop is down) then process
* it. Otherwise ignore it and Wait for RSCN to come in.
*/
if (atomic_read(&ha->loop_state) != LOOP_DOWN) {
DEBUG2(printk("scsi(%ld): Asynchronous PORT UPDATE "
"ignored.\n", ha->host_no));
break;
}
DEBUG2(printk("scsi(%ld): Asynchronous PORT UPDATE.\n",
ha->host_no));
DEBUG(printk(KERN_INFO
"scsi(%ld): Port database changed %04x %04x.\n",
ha->host_no, mb[1], mb[2]));
/*
* Mark all devices as missing so we will login again.
*/
atomic_set(&ha->loop_state, LOOP_UP);
atomic_set(&ha->loop_down_timer, 0);
qla2x00_mark_all_devices_lost(ha);
ha->flags.rscn_queue_overflow = 1;
set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
set_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags);
/* Update AEN queue. */
qla2x00_enqueue_aen(ha, MBA_PORT_UPDATE, NULL);
break;
case MBA_RSCN_UPDATE: /* State Change Registration */
mb[1] = RD_MAILBOX_REG(ha, reg, 1);
mb[2] = RD_MAILBOX_REG(ha, reg, 2);
DEBUG2(printk("scsi(%ld): Asynchronous RSCR UPDATE.\n",
ha->host_no));
DEBUG(printk(KERN_INFO
"scsi(%ld): RSCN database changed -- %04x %04x.\n",
ha->host_no, mb[1], mb[2]));
rscn_entry = (mb[1] << 16) | mb[2];
host_pid = (ha->d_id.b.domain << 16) | (ha->d_id.b.area << 8) |
ha->d_id.b.al_pa;
if (rscn_entry == host_pid) {
DEBUG(printk(KERN_INFO
"scsi(%ld): Ignoring RSCN update to local host "
"port ID (%06x)\n",
ha->host_no, host_pid));
break;
}
rscn_queue_index = ha->rscn_in_ptr + 1;
if (rscn_queue_index == MAX_RSCN_COUNT)
rscn_queue_index = 0;
if (rscn_queue_index != ha->rscn_out_ptr) {
ha->rscn_queue[ha->rscn_in_ptr] = rscn_entry;
ha->rscn_in_ptr = rscn_queue_index;
} else {
ha->flags.rscn_queue_overflow = 1;
}
atomic_set(&ha->loop_state, LOOP_UPDATE);
atomic_set(&ha->loop_down_timer, 0);
ha->flags.management_server_logged_in = 0;
set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
set_bit(RSCN_UPDATE, &ha->dpc_flags);
/* Update AEN queue. */
qla2x00_enqueue_aen(ha, MBA_RSCN_UPDATE, &mb[0]);
break;
/* case MBA_RIO_RESPONSE: */
case MBA_ZIO_RESPONSE:
DEBUG2(printk("scsi(%ld): [R|Z]IO update completion.\n",
ha->host_no));
DEBUG(printk(KERN_INFO
"scsi(%ld): [R|Z]IO update completion.\n",
ha->host_no));
qla2x00_process_response_queue(ha);
break;
}
}