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1623 lines
45 KiB
1623 lines
45 KiB
// SPDX-License-Identifier: GPL-2.0-only |
|
/* |
|
* QLogic iSCSI HBA Driver |
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* Copyright (c) 2003-2013 QLogic Corporation |
|
*/ |
|
|
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#include "ql4_def.h" |
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#include "ql4_glbl.h" |
|
#include "ql4_dbg.h" |
|
#include "ql4_inline.h" |
|
|
|
/** |
|
* qla4xxx_copy_sense - copy sense data into cmd sense buffer |
|
* @ha: Pointer to host adapter structure. |
|
* @sts_entry: Pointer to status entry structure. |
|
* @srb: Pointer to srb structure. |
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**/ |
|
static void qla4xxx_copy_sense(struct scsi_qla_host *ha, |
|
struct status_entry *sts_entry, |
|
struct srb *srb) |
|
{ |
|
struct scsi_cmnd *cmd = srb->cmd; |
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uint16_t sense_len; |
|
|
|
memset(cmd->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE); |
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sense_len = le16_to_cpu(sts_entry->senseDataByteCnt); |
|
if (sense_len == 0) { |
|
DEBUG2(ql4_printk(KERN_INFO, ha, "scsi%ld:%d:%d:%llu: %s:" |
|
" sense len 0\n", ha->host_no, |
|
cmd->device->channel, cmd->device->id, |
|
cmd->device->lun, __func__)); |
|
ha->status_srb = NULL; |
|
return; |
|
} |
|
/* Save total available sense length, |
|
* not to exceed cmd's sense buffer size */ |
|
sense_len = min_t(uint16_t, sense_len, SCSI_SENSE_BUFFERSIZE); |
|
srb->req_sense_ptr = cmd->sense_buffer; |
|
srb->req_sense_len = sense_len; |
|
|
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/* Copy sense from sts_entry pkt */ |
|
sense_len = min_t(uint16_t, sense_len, IOCB_MAX_SENSEDATA_LEN); |
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memcpy(cmd->sense_buffer, sts_entry->senseData, sense_len); |
|
|
|
DEBUG2(printk(KERN_INFO "scsi%ld:%d:%d:%llu: %s: sense key = %x, " |
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"ASL= %02x, ASC/ASCQ = %02x/%02x\n", ha->host_no, |
|
cmd->device->channel, cmd->device->id, |
|
cmd->device->lun, __func__, |
|
sts_entry->senseData[2] & 0x0f, |
|
sts_entry->senseData[7], |
|
sts_entry->senseData[12], |
|
sts_entry->senseData[13])); |
|
|
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DEBUG5(qla4xxx_dump_buffer(cmd->sense_buffer, sense_len)); |
|
srb->flags |= SRB_GOT_SENSE; |
|
|
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/* Update srb, in case a sts_cont pkt follows */ |
|
srb->req_sense_ptr += sense_len; |
|
srb->req_sense_len -= sense_len; |
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if (srb->req_sense_len != 0) |
|
ha->status_srb = srb; |
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else |
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ha->status_srb = NULL; |
|
} |
|
|
|
/** |
|
* qla4xxx_status_cont_entry - Process a Status Continuations entry. |
|
* @ha: SCSI driver HA context |
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* @sts_cont: Entry pointer |
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* |
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* Extended sense data. |
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*/ |
|
static void |
|
qla4xxx_status_cont_entry(struct scsi_qla_host *ha, |
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struct status_cont_entry *sts_cont) |
|
{ |
|
struct srb *srb = ha->status_srb; |
|
struct scsi_cmnd *cmd; |
|
uint16_t sense_len; |
|
|
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if (srb == NULL) |
|
return; |
|
|
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cmd = srb->cmd; |
|
if (cmd == NULL) { |
|
DEBUG2(printk(KERN_INFO "scsi%ld: %s: Cmd already returned " |
|
"back to OS srb=%p srb->state:%d\n", ha->host_no, |
|
__func__, srb, srb->state)); |
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ha->status_srb = NULL; |
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return; |
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} |
|
|
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/* Copy sense data. */ |
|
sense_len = min_t(uint16_t, srb->req_sense_len, |
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IOCB_MAX_EXT_SENSEDATA_LEN); |
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memcpy(srb->req_sense_ptr, sts_cont->ext_sense_data, sense_len); |
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DEBUG5(qla4xxx_dump_buffer(srb->req_sense_ptr, sense_len)); |
|
|
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srb->req_sense_ptr += sense_len; |
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srb->req_sense_len -= sense_len; |
|
|
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/* Place command on done queue. */ |
|
if (srb->req_sense_len == 0) { |
|
kref_put(&srb->srb_ref, qla4xxx_srb_compl); |
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ha->status_srb = NULL; |
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} |
|
} |
|
|
|
/** |
|
* qla4xxx_status_entry - processes status IOCBs |
|
* @ha: Pointer to host adapter structure. |
|
* @sts_entry: Pointer to status entry structure. |
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**/ |
|
static void qla4xxx_status_entry(struct scsi_qla_host *ha, |
|
struct status_entry *sts_entry) |
|
{ |
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uint8_t scsi_status; |
|
struct scsi_cmnd *cmd; |
|
struct srb *srb; |
|
struct ddb_entry *ddb_entry; |
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uint32_t residual; |
|
|
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srb = qla4xxx_del_from_active_array(ha, le32_to_cpu(sts_entry->handle)); |
|
if (!srb) { |
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ql4_printk(KERN_WARNING, ha, "%s invalid status entry: " |
|
"handle=0x%0x, srb=%p\n", __func__, |
|
sts_entry->handle, srb); |
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if (is_qla80XX(ha)) |
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set_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags); |
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else |
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set_bit(DPC_RESET_HA, &ha->dpc_flags); |
|
return; |
|
} |
|
|
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cmd = srb->cmd; |
|
if (cmd == NULL) { |
|
DEBUG2(printk("scsi%ld: %s: Command already returned back to " |
|
"OS pkt->handle=%d srb=%p srb->state:%d\n", |
|
ha->host_no, __func__, sts_entry->handle, |
|
srb, srb->state)); |
|
ql4_printk(KERN_WARNING, ha, "Command is NULL:" |
|
" already returned to OS (srb=%p)\n", srb); |
|
return; |
|
} |
|
|
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ddb_entry = srb->ddb; |
|
if (ddb_entry == NULL) { |
|
cmd->result = DID_NO_CONNECT << 16; |
|
goto status_entry_exit; |
|
} |
|
|
|
residual = le32_to_cpu(sts_entry->residualByteCnt); |
|
|
|
/* Translate ISP error to a Linux SCSI error. */ |
|
scsi_status = sts_entry->scsiStatus; |
|
switch (sts_entry->completionStatus) { |
|
case SCS_COMPLETE: |
|
|
|
if (sts_entry->iscsiFlags & ISCSI_FLAG_RESIDUAL_OVER) { |
|
cmd->result = DID_ERROR << 16; |
|
break; |
|
} |
|
|
|
if (sts_entry->iscsiFlags &ISCSI_FLAG_RESIDUAL_UNDER) { |
|
scsi_set_resid(cmd, residual); |
|
if (!scsi_status && ((scsi_bufflen(cmd) - residual) < |
|
cmd->underflow)) { |
|
|
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cmd->result = DID_ERROR << 16; |
|
|
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DEBUG2(printk("scsi%ld:%d:%d:%llu: %s: " |
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"Mid-layer Data underrun0, " |
|
"xferlen = 0x%x, " |
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"residual = 0x%x\n", ha->host_no, |
|
cmd->device->channel, |
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cmd->device->id, |
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cmd->device->lun, __func__, |
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scsi_bufflen(cmd), residual)); |
|
break; |
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} |
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} |
|
|
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cmd->result = DID_OK << 16 | scsi_status; |
|
|
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if (scsi_status != SAM_STAT_CHECK_CONDITION) |
|
break; |
|
|
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/* Copy Sense Data into sense buffer. */ |
|
qla4xxx_copy_sense(ha, sts_entry, srb); |
|
break; |
|
|
|
case SCS_INCOMPLETE: |
|
/* Always set the status to DID_ERROR, since |
|
* all conditions result in that status anyway */ |
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cmd->result = DID_ERROR << 16; |
|
break; |
|
|
|
case SCS_RESET_OCCURRED: |
|
DEBUG2(printk("scsi%ld:%d:%d:%llu: %s: Device RESET occurred\n", |
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ha->host_no, cmd->device->channel, |
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cmd->device->id, cmd->device->lun, __func__)); |
|
|
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cmd->result = DID_RESET << 16; |
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break; |
|
|
|
case SCS_ABORTED: |
|
DEBUG2(printk("scsi%ld:%d:%d:%llu: %s: Abort occurred\n", |
|
ha->host_no, cmd->device->channel, |
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cmd->device->id, cmd->device->lun, __func__)); |
|
|
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cmd->result = DID_RESET << 16; |
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break; |
|
|
|
case SCS_TIMEOUT: |
|
DEBUG2(printk(KERN_INFO "scsi%ld:%d:%d:%llu: Timeout\n", |
|
ha->host_no, cmd->device->channel, |
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cmd->device->id, cmd->device->lun)); |
|
|
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cmd->result = DID_TRANSPORT_DISRUPTED << 16; |
|
|
|
/* |
|
* Mark device missing so that we won't continue to send |
|
* I/O to this device. We should get a ddb state change |
|
* AEN soon. |
|
*/ |
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if (iscsi_is_session_online(ddb_entry->sess)) |
|
qla4xxx_mark_device_missing(ddb_entry->sess); |
|
break; |
|
|
|
case SCS_DATA_UNDERRUN: |
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case SCS_DATA_OVERRUN: |
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if ((sts_entry->iscsiFlags & ISCSI_FLAG_RESIDUAL_OVER) || |
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(sts_entry->completionStatus == SCS_DATA_OVERRUN)) { |
|
DEBUG2(printk("scsi%ld:%d:%d:%llu: %s: " "Data overrun\n", |
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ha->host_no, |
|
cmd->device->channel, cmd->device->id, |
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cmd->device->lun, __func__)); |
|
|
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cmd->result = DID_ERROR << 16; |
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break; |
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} |
|
|
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scsi_set_resid(cmd, residual); |
|
|
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if (sts_entry->iscsiFlags & ISCSI_FLAG_RESIDUAL_UNDER) { |
|
|
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/* Both the firmware and target reported UNDERRUN: |
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* |
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* MID-LAYER UNDERFLOW case: |
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* Some kernels do not properly detect midlayer |
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* underflow, so we manually check it and return |
|
* ERROR if the minimum required data was not |
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* received. |
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* |
|
* ALL OTHER cases: |
|
* Fall thru to check scsi_status |
|
*/ |
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if (!scsi_status && (scsi_bufflen(cmd) - residual) < |
|
cmd->underflow) { |
|
DEBUG2(ql4_printk(KERN_INFO, ha, |
|
"scsi%ld:%d:%d:%llu: %s: Mid-layer Data underrun, xferlen = 0x%x,residual = 0x%x\n", |
|
ha->host_no, |
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cmd->device->channel, |
|
cmd->device->id, |
|
cmd->device->lun, __func__, |
|
scsi_bufflen(cmd), |
|
residual)); |
|
|
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cmd->result = DID_ERROR << 16; |
|
break; |
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} |
|
|
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} else if (scsi_status != SAM_STAT_TASK_SET_FULL && |
|
scsi_status != SAM_STAT_BUSY) { |
|
|
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/* |
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* The firmware reports UNDERRUN, but the target does |
|
* not report it: |
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* |
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* scsi_status | host_byte device_byte |
|
* | (19:16) (7:0) |
|
* ============= | ========= =========== |
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* TASK_SET_FULL | DID_OK scsi_status |
|
* BUSY | DID_OK scsi_status |
|
* ALL OTHERS | DID_ERROR scsi_status |
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* |
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* Note: If scsi_status is task set full or busy, |
|
* then this else if would fall thru to check the |
|
* scsi_status and return DID_OK. |
|
*/ |
|
|
|
DEBUG2(ql4_printk(KERN_INFO, ha, |
|
"scsi%ld:%d:%d:%llu: %s: Dropped frame(s) detected (0x%x of 0x%x bytes).\n", |
|
ha->host_no, |
|
cmd->device->channel, |
|
cmd->device->id, |
|
cmd->device->lun, __func__, |
|
residual, |
|
scsi_bufflen(cmd))); |
|
|
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cmd->result = DID_ERROR << 16 | scsi_status; |
|
goto check_scsi_status; |
|
} |
|
|
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cmd->result = DID_OK << 16 | scsi_status; |
|
|
|
check_scsi_status: |
|
if (scsi_status == SAM_STAT_CHECK_CONDITION) |
|
qla4xxx_copy_sense(ha, sts_entry, srb); |
|
|
|
break; |
|
|
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case SCS_DEVICE_LOGGED_OUT: |
|
case SCS_DEVICE_UNAVAILABLE: |
|
DEBUG2(printk(KERN_INFO "scsi%ld:%d:%d:%llu: SCS_DEVICE " |
|
"state: 0x%x\n", ha->host_no, |
|
cmd->device->channel, cmd->device->id, |
|
cmd->device->lun, sts_entry->completionStatus)); |
|
/* |
|
* Mark device missing so that we won't continue to |
|
* send I/O to this device. We should get a ddb |
|
* state change AEN soon. |
|
*/ |
|
if (iscsi_is_session_online(ddb_entry->sess)) |
|
qla4xxx_mark_device_missing(ddb_entry->sess); |
|
|
|
cmd->result = DID_TRANSPORT_DISRUPTED << 16; |
|
break; |
|
|
|
case SCS_QUEUE_FULL: |
|
/* |
|
* SCSI Mid-Layer handles device queue full |
|
*/ |
|
cmd->result = DID_OK << 16 | sts_entry->scsiStatus; |
|
DEBUG2(printk("scsi%ld:%d:%llu: %s: QUEUE FULL detected " |
|
"compl=%02x, scsi=%02x, state=%02x, iFlags=%02x," |
|
" iResp=%02x\n", ha->host_no, cmd->device->id, |
|
cmd->device->lun, __func__, |
|
sts_entry->completionStatus, |
|
sts_entry->scsiStatus, sts_entry->state_flags, |
|
sts_entry->iscsiFlags, |
|
sts_entry->iscsiResponse)); |
|
break; |
|
|
|
default: |
|
cmd->result = DID_ERROR << 16; |
|
break; |
|
} |
|
|
|
status_entry_exit: |
|
|
|
/* complete the request, if not waiting for status_continuation pkt */ |
|
srb->cc_stat = sts_entry->completionStatus; |
|
if (ha->status_srb == NULL) |
|
kref_put(&srb->srb_ref, qla4xxx_srb_compl); |
|
} |
|
|
|
/** |
|
* qla4xxx_passthru_status_entry - processes passthru status IOCBs (0x3C) |
|
* @ha: Pointer to host adapter structure. |
|
* @sts_entry: Pointer to status entry structure. |
|
**/ |
|
static void qla4xxx_passthru_status_entry(struct scsi_qla_host *ha, |
|
struct passthru_status *sts_entry) |
|
{ |
|
struct iscsi_task *task; |
|
struct ddb_entry *ddb_entry; |
|
struct ql4_task_data *task_data; |
|
struct iscsi_cls_conn *cls_conn; |
|
struct iscsi_conn *conn; |
|
itt_t itt; |
|
uint32_t fw_ddb_index; |
|
|
|
itt = sts_entry->handle; |
|
fw_ddb_index = le32_to_cpu(sts_entry->target); |
|
|
|
ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, fw_ddb_index); |
|
|
|
if (ddb_entry == NULL) { |
|
ql4_printk(KERN_ERR, ha, "%s: Invalid target index = 0x%x\n", |
|
__func__, sts_entry->target); |
|
return; |
|
} |
|
|
|
cls_conn = ddb_entry->conn; |
|
conn = cls_conn->dd_data; |
|
spin_lock(&conn->session->back_lock); |
|
task = iscsi_itt_to_task(conn, itt); |
|
spin_unlock(&conn->session->back_lock); |
|
|
|
if (task == NULL) { |
|
ql4_printk(KERN_ERR, ha, "%s: Task is NULL\n", __func__); |
|
return; |
|
} |
|
|
|
task_data = task->dd_data; |
|
memcpy(&task_data->sts, sts_entry, sizeof(struct passthru_status)); |
|
ha->iocb_cnt -= task_data->iocb_req_cnt; |
|
queue_work(ha->task_wq, &task_data->task_work); |
|
} |
|
|
|
static struct mrb *qla4xxx_del_mrb_from_active_array(struct scsi_qla_host *ha, |
|
uint32_t index) |
|
{ |
|
struct mrb *mrb = NULL; |
|
|
|
/* validate handle and remove from active array */ |
|
if (index >= MAX_MRB) |
|
return mrb; |
|
|
|
mrb = ha->active_mrb_array[index]; |
|
ha->active_mrb_array[index] = NULL; |
|
if (!mrb) |
|
return mrb; |
|
|
|
/* update counters */ |
|
ha->iocb_cnt -= mrb->iocb_cnt; |
|
|
|
return mrb; |
|
} |
|
|
|
static void qla4xxx_mbox_status_entry(struct scsi_qla_host *ha, |
|
struct mbox_status_iocb *mbox_sts_entry) |
|
{ |
|
struct mrb *mrb; |
|
uint32_t status; |
|
uint32_t data_size; |
|
|
|
mrb = qla4xxx_del_mrb_from_active_array(ha, |
|
le32_to_cpu(mbox_sts_entry->handle)); |
|
|
|
if (mrb == NULL) { |
|
ql4_printk(KERN_WARNING, ha, "%s: mrb[%d] is null\n", __func__, |
|
mbox_sts_entry->handle); |
|
return; |
|
} |
|
|
|
switch (mrb->mbox_cmd) { |
|
case MBOX_CMD_PING: |
|
DEBUG2(ql4_printk(KERN_INFO, ha, "%s: mbox_cmd = 0x%x, " |
|
"mbox_sts[0] = 0x%x, mbox_sts[6] = 0x%x\n", |
|
__func__, mrb->mbox_cmd, |
|
mbox_sts_entry->out_mbox[0], |
|
mbox_sts_entry->out_mbox[6])); |
|
|
|
if (mbox_sts_entry->out_mbox[0] == MBOX_STS_COMMAND_COMPLETE) |
|
status = ISCSI_PING_SUCCESS; |
|
else |
|
status = mbox_sts_entry->out_mbox[6]; |
|
|
|
data_size = sizeof(mbox_sts_entry->out_mbox); |
|
|
|
qla4xxx_post_ping_evt_work(ha, status, mrb->pid, data_size, |
|
(uint8_t *) mbox_sts_entry->out_mbox); |
|
break; |
|
|
|
default: |
|
DEBUG2(ql4_printk(KERN_WARNING, ha, "%s: invalid mbox_cmd = " |
|
"0x%x\n", __func__, mrb->mbox_cmd)); |
|
} |
|
|
|
kfree(mrb); |
|
return; |
|
} |
|
|
|
/** |
|
* qla4xxx_process_response_queue - process response queue completions |
|
* @ha: Pointer to host adapter structure. |
|
* |
|
* This routine process response queue completions in interrupt context. |
|
* Hardware_lock locked upon entry |
|
**/ |
|
void qla4xxx_process_response_queue(struct scsi_qla_host *ha) |
|
{ |
|
uint32_t count = 0; |
|
struct srb *srb = NULL; |
|
struct status_entry *sts_entry; |
|
|
|
/* Process all responses from response queue */ |
|
while ((ha->response_ptr->signature != RESPONSE_PROCESSED)) { |
|
sts_entry = (struct status_entry *) ha->response_ptr; |
|
count++; |
|
|
|
/* Advance pointers for next entry */ |
|
if (ha->response_out == (RESPONSE_QUEUE_DEPTH - 1)) { |
|
ha->response_out = 0; |
|
ha->response_ptr = ha->response_ring; |
|
} else { |
|
ha->response_out++; |
|
ha->response_ptr++; |
|
} |
|
|
|
/* process entry */ |
|
switch (sts_entry->hdr.entryType) { |
|
case ET_STATUS: |
|
/* Common status */ |
|
qla4xxx_status_entry(ha, sts_entry); |
|
break; |
|
|
|
case ET_PASSTHRU_STATUS: |
|
if (sts_entry->hdr.systemDefined == SD_ISCSI_PDU) |
|
qla4xxx_passthru_status_entry(ha, |
|
(struct passthru_status *)sts_entry); |
|
else |
|
ql4_printk(KERN_ERR, ha, |
|
"%s: Invalid status received\n", |
|
__func__); |
|
|
|
break; |
|
|
|
case ET_STATUS_CONTINUATION: |
|
qla4xxx_status_cont_entry(ha, |
|
(struct status_cont_entry *) sts_entry); |
|
break; |
|
|
|
case ET_COMMAND: |
|
/* ISP device queue is full. Command not |
|
* accepted by ISP. Queue command for |
|
* later */ |
|
|
|
srb = qla4xxx_del_from_active_array(ha, |
|
le32_to_cpu(sts_entry-> |
|
handle)); |
|
if (srb == NULL) |
|
goto exit_prq_invalid_handle; |
|
|
|
DEBUG2(printk("scsi%ld: %s: FW device queue full, " |
|
"srb %p\n", ha->host_no, __func__, srb)); |
|
|
|
/* ETRY normally by sending it back with |
|
* DID_BUS_BUSY */ |
|
srb->cmd->result = DID_BUS_BUSY << 16; |
|
kref_put(&srb->srb_ref, qla4xxx_srb_compl); |
|
break; |
|
|
|
case ET_CONTINUE: |
|
/* Just throw away the continuation entries */ |
|
DEBUG2(printk("scsi%ld: %s: Continuation entry - " |
|
"ignoring\n", ha->host_no, __func__)); |
|
break; |
|
|
|
case ET_MBOX_STATUS: |
|
DEBUG2(ql4_printk(KERN_INFO, ha, |
|
"%s: mbox status IOCB\n", __func__)); |
|
qla4xxx_mbox_status_entry(ha, |
|
(struct mbox_status_iocb *)sts_entry); |
|
break; |
|
|
|
default: |
|
/* |
|
* Invalid entry in response queue, reset RISC |
|
* firmware. |
|
*/ |
|
DEBUG2(printk("scsi%ld: %s: Invalid entry %x in " |
|
"response queue \n", ha->host_no, |
|
__func__, |
|
sts_entry->hdr.entryType)); |
|
goto exit_prq_error; |
|
} |
|
((struct response *)sts_entry)->signature = RESPONSE_PROCESSED; |
|
wmb(); |
|
} |
|
|
|
/* |
|
* Tell ISP we're done with response(s). This also clears the interrupt. |
|
*/ |
|
ha->isp_ops->complete_iocb(ha); |
|
|
|
return; |
|
|
|
exit_prq_invalid_handle: |
|
DEBUG2(printk("scsi%ld: %s: Invalid handle(srb)=%p type=%x IOCS=%x\n", |
|
ha->host_no, __func__, srb, sts_entry->hdr.entryType, |
|
sts_entry->completionStatus)); |
|
|
|
exit_prq_error: |
|
ha->isp_ops->complete_iocb(ha); |
|
set_bit(DPC_RESET_HA, &ha->dpc_flags); |
|
} |
|
|
|
/** |
|
* qla4_83xx_loopback_in_progress: Is loopback in progress? |
|
* @ha: Pointer to host adapter structure. |
|
* returns: 1 = loopback in progress, 0 = loopback not in progress |
|
**/ |
|
static int qla4_83xx_loopback_in_progress(struct scsi_qla_host *ha) |
|
{ |
|
int rval = 1; |
|
|
|
if (is_qla8032(ha) || is_qla8042(ha)) { |
|
if ((ha->idc_info.info2 & ENABLE_INTERNAL_LOOPBACK) || |
|
(ha->idc_info.info2 & ENABLE_EXTERNAL_LOOPBACK)) { |
|
DEBUG2(ql4_printk(KERN_INFO, ha, |
|
"%s: Loopback diagnostics in progress\n", |
|
__func__)); |
|
rval = 1; |
|
} else { |
|
DEBUG2(ql4_printk(KERN_INFO, ha, |
|
"%s: Loopback diagnostics not in progress\n", |
|
__func__)); |
|
rval = 0; |
|
} |
|
} |
|
|
|
return rval; |
|
} |
|
|
|
static void qla4xxx_update_ipaddr_state(struct scsi_qla_host *ha, |
|
uint32_t ipaddr_idx, |
|
uint32_t ipaddr_fw_state) |
|
{ |
|
uint8_t ipaddr_state; |
|
uint8_t ip_idx; |
|
|
|
ip_idx = ipaddr_idx & 0xF; |
|
ipaddr_state = qla4xxx_set_ipaddr_state((uint8_t)ipaddr_fw_state); |
|
|
|
switch (ip_idx) { |
|
case 0: |
|
ha->ip_config.ipv4_addr_state = ipaddr_state; |
|
break; |
|
case 1: |
|
ha->ip_config.ipv6_link_local_state = ipaddr_state; |
|
break; |
|
case 2: |
|
ha->ip_config.ipv6_addr0_state = ipaddr_state; |
|
break; |
|
case 3: |
|
ha->ip_config.ipv6_addr1_state = ipaddr_state; |
|
break; |
|
default: |
|
ql4_printk(KERN_INFO, ha, "%s: Invalid IPADDR index %d\n", |
|
__func__, ip_idx); |
|
} |
|
} |
|
|
|
static void qla4xxx_default_router_changed(struct scsi_qla_host *ha, |
|
uint32_t *mbox_sts) |
|
{ |
|
memcpy(&ha->ip_config.ipv6_default_router_addr.s6_addr32[0], |
|
&mbox_sts[2], sizeof(uint32_t)); |
|
memcpy(&ha->ip_config.ipv6_default_router_addr.s6_addr32[1], |
|
&mbox_sts[3], sizeof(uint32_t)); |
|
memcpy(&ha->ip_config.ipv6_default_router_addr.s6_addr32[2], |
|
&mbox_sts[4], sizeof(uint32_t)); |
|
memcpy(&ha->ip_config.ipv6_default_router_addr.s6_addr32[3], |
|
&mbox_sts[5], sizeof(uint32_t)); |
|
} |
|
|
|
/** |
|
* qla4xxx_isr_decode_mailbox - decodes mailbox status |
|
* @ha: Pointer to host adapter structure. |
|
* @mbox_status: Mailbox status. |
|
* |
|
* This routine decodes the mailbox status during the ISR. |
|
* Hardware_lock locked upon entry. runs in interrupt context. |
|
**/ |
|
static void qla4xxx_isr_decode_mailbox(struct scsi_qla_host * ha, |
|
uint32_t mbox_status) |
|
{ |
|
int i; |
|
uint32_t mbox_sts[MBOX_AEN_REG_COUNT]; |
|
__le32 __iomem *mailbox_out; |
|
uint32_t opcode = 0; |
|
|
|
if (is_qla8032(ha) || is_qla8042(ha)) |
|
mailbox_out = &ha->qla4_83xx_reg->mailbox_out[0]; |
|
else if (is_qla8022(ha)) |
|
mailbox_out = &ha->qla4_82xx_reg->mailbox_out[0]; |
|
else |
|
mailbox_out = &ha->reg->mailbox[0]; |
|
|
|
if ((mbox_status == MBOX_STS_BUSY) || |
|
(mbox_status == MBOX_STS_INTERMEDIATE_COMPLETION) || |
|
(mbox_status >> 12 == MBOX_COMPLETION_STATUS)) { |
|
ha->mbox_status[0] = mbox_status; |
|
|
|
if (test_bit(AF_MBOX_COMMAND, &ha->flags)) { |
|
/* |
|
* Copy all mailbox registers to a temporary |
|
* location and set mailbox command done flag |
|
*/ |
|
for (i = 0; i < ha->mbox_status_count; i++) |
|
ha->mbox_status[i] = readl(&mailbox_out[i]); |
|
|
|
set_bit(AF_MBOX_COMMAND_DONE, &ha->flags); |
|
|
|
if (test_bit(AF_MBOX_COMMAND_NOPOLL, &ha->flags)) |
|
complete(&ha->mbx_intr_comp); |
|
} |
|
} else if (mbox_status >> 12 == MBOX_ASYNC_EVENT_STATUS) { |
|
for (i = 0; i < MBOX_AEN_REG_COUNT; i++) |
|
mbox_sts[i] = readl(&mailbox_out[i]); |
|
|
|
/* Immediately process the AENs that don't require much work. |
|
* Only queue the database_changed AENs */ |
|
if (ha->aen_log.count < MAX_AEN_ENTRIES) { |
|
for (i = 0; i < MBOX_AEN_REG_COUNT; i++) |
|
ha->aen_log.entry[ha->aen_log.count].mbox_sts[i] = |
|
mbox_sts[i]; |
|
ha->aen_log.count++; |
|
} |
|
switch (mbox_status) { |
|
case MBOX_ASTS_SYSTEM_ERROR: |
|
/* Log Mailbox registers */ |
|
ql4_printk(KERN_INFO, ha, "%s: System Err\n", __func__); |
|
qla4xxx_dump_registers(ha); |
|
|
|
if ((is_qla8022(ha) && ql4xdontresethba) || |
|
((is_qla8032(ha) || is_qla8042(ha)) && |
|
qla4_83xx_idc_dontreset(ha))) { |
|
DEBUG2(printk("scsi%ld: %s:Don't Reset HBA\n", |
|
ha->host_no, __func__)); |
|
} else { |
|
set_bit(AF_GET_CRASH_RECORD, &ha->flags); |
|
set_bit(DPC_RESET_HA, &ha->dpc_flags); |
|
} |
|
break; |
|
|
|
case MBOX_ASTS_REQUEST_TRANSFER_ERROR: |
|
case MBOX_ASTS_RESPONSE_TRANSFER_ERROR: |
|
case MBOX_ASTS_NVRAM_INVALID: |
|
case MBOX_ASTS_IP_ADDRESS_CHANGED: |
|
case MBOX_ASTS_DHCP_LEASE_EXPIRED: |
|
DEBUG2(printk("scsi%ld: AEN %04x, ERROR Status, " |
|
"Reset HA\n", ha->host_no, mbox_status)); |
|
if (is_qla80XX(ha)) |
|
set_bit(DPC_RESET_HA_FW_CONTEXT, |
|
&ha->dpc_flags); |
|
else |
|
set_bit(DPC_RESET_HA, &ha->dpc_flags); |
|
break; |
|
|
|
case MBOX_ASTS_LINK_UP: |
|
set_bit(AF_LINK_UP, &ha->flags); |
|
if (test_bit(AF_INIT_DONE, &ha->flags)) |
|
set_bit(DPC_LINK_CHANGED, &ha->dpc_flags); |
|
|
|
ql4_printk(KERN_INFO, ha, "%s: LINK UP\n", __func__); |
|
qla4xxx_post_aen_work(ha, ISCSI_EVENT_LINKUP, |
|
sizeof(mbox_sts), |
|
(uint8_t *) mbox_sts); |
|
|
|
if ((is_qla8032(ha) || is_qla8042(ha)) && |
|
ha->notify_link_up_comp) |
|
complete(&ha->link_up_comp); |
|
|
|
break; |
|
|
|
case MBOX_ASTS_LINK_DOWN: |
|
clear_bit(AF_LINK_UP, &ha->flags); |
|
if (test_bit(AF_INIT_DONE, &ha->flags)) { |
|
set_bit(DPC_LINK_CHANGED, &ha->dpc_flags); |
|
qla4xxx_wake_dpc(ha); |
|
} |
|
|
|
ql4_printk(KERN_INFO, ha, "%s: LINK DOWN\n", __func__); |
|
qla4xxx_post_aen_work(ha, ISCSI_EVENT_LINKDOWN, |
|
sizeof(mbox_sts), |
|
(uint8_t *) mbox_sts); |
|
break; |
|
|
|
case MBOX_ASTS_HEARTBEAT: |
|
ha->seconds_since_last_heartbeat = 0; |
|
break; |
|
|
|
case MBOX_ASTS_DHCP_LEASE_ACQUIRED: |
|
DEBUG2(printk("scsi%ld: AEN %04x DHCP LEASE " |
|
"ACQUIRED\n", ha->host_no, mbox_status)); |
|
set_bit(DPC_GET_DHCP_IP_ADDR, &ha->dpc_flags); |
|
break; |
|
|
|
case MBOX_ASTS_PROTOCOL_STATISTIC_ALARM: |
|
case MBOX_ASTS_SCSI_COMMAND_PDU_REJECTED: /* Target |
|
* mode |
|
* only */ |
|
case MBOX_ASTS_UNSOLICITED_PDU_RECEIVED: /* Connection mode */ |
|
case MBOX_ASTS_IPSEC_SYSTEM_FATAL_ERROR: |
|
case MBOX_ASTS_SUBNET_STATE_CHANGE: |
|
case MBOX_ASTS_DUPLICATE_IP: |
|
/* No action */ |
|
DEBUG2(printk("scsi%ld: AEN %04x\n", ha->host_no, |
|
mbox_status)); |
|
break; |
|
|
|
case MBOX_ASTS_IP_ADDR_STATE_CHANGED: |
|
printk("scsi%ld: AEN %04x, mbox_sts[2]=%04x, " |
|
"mbox_sts[3]=%04x\n", ha->host_no, mbox_sts[0], |
|
mbox_sts[2], mbox_sts[3]); |
|
|
|
qla4xxx_update_ipaddr_state(ha, mbox_sts[5], |
|
mbox_sts[3]); |
|
/* mbox_sts[2] = Old ACB state |
|
* mbox_sts[3] = new ACB state */ |
|
if ((mbox_sts[3] == IP_ADDRSTATE_PREFERRED) && |
|
((mbox_sts[2] == IP_ADDRSTATE_TENTATIVE) || |
|
(mbox_sts[2] == IP_ADDRSTATE_ACQUIRING))) { |
|
set_bit(DPC_GET_DHCP_IP_ADDR, &ha->dpc_flags); |
|
} else if ((mbox_sts[3] == IP_ADDRSTATE_ACQUIRING) && |
|
(mbox_sts[2] == IP_ADDRSTATE_PREFERRED)) { |
|
if (is_qla80XX(ha)) |
|
set_bit(DPC_RESET_HA_FW_CONTEXT, |
|
&ha->dpc_flags); |
|
else |
|
set_bit(DPC_RESET_HA, &ha->dpc_flags); |
|
} else if (mbox_sts[3] == IP_ADDRSTATE_DISABLING) { |
|
ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ACB in disabling state\n", |
|
ha->host_no, __func__); |
|
} else if (mbox_sts[3] == IP_ADDRSTATE_UNCONFIGURED) { |
|
complete(&ha->disable_acb_comp); |
|
ql4_printk(KERN_INFO, ha, "scsi%ld: %s: ACB state unconfigured\n", |
|
ha->host_no, __func__); |
|
} |
|
break; |
|
|
|
case MBOX_ASTS_IPV6_LINK_MTU_CHANGE: |
|
case MBOX_ASTS_IPV6_AUTO_PREFIX_IGNORED: |
|
case MBOX_ASTS_IPV6_ND_LOCAL_PREFIX_IGNORED: |
|
/* No action */ |
|
DEBUG2(ql4_printk(KERN_INFO, ha, "scsi%ld: AEN %04x\n", |
|
ha->host_no, mbox_status)); |
|
break; |
|
|
|
case MBOX_ASTS_ICMPV6_ERROR_MSG_RCVD: |
|
DEBUG2(ql4_printk(KERN_INFO, ha, |
|
"scsi%ld: AEN %04x, IPv6 ERROR, " |
|
"mbox_sts[1]=%08x, mbox_sts[2]=%08x, mbox_sts[3}=%08x, mbox_sts[4]=%08x mbox_sts[5]=%08x\n", |
|
ha->host_no, mbox_sts[0], mbox_sts[1], |
|
mbox_sts[2], mbox_sts[3], mbox_sts[4], |
|
mbox_sts[5])); |
|
break; |
|
|
|
case MBOX_ASTS_MAC_ADDRESS_CHANGED: |
|
case MBOX_ASTS_DNS: |
|
/* No action */ |
|
DEBUG2(printk(KERN_INFO "scsi%ld: AEN %04x, " |
|
"mbox_sts[1]=%04x, mbox_sts[2]=%04x\n", |
|
ha->host_no, mbox_sts[0], |
|
mbox_sts[1], mbox_sts[2])); |
|
break; |
|
|
|
case MBOX_ASTS_SELF_TEST_FAILED: |
|
case MBOX_ASTS_LOGIN_FAILED: |
|
/* No action */ |
|
DEBUG2(printk("scsi%ld: AEN %04x, mbox_sts[1]=%04x, " |
|
"mbox_sts[2]=%04x, mbox_sts[3]=%04x\n", |
|
ha->host_no, mbox_sts[0], mbox_sts[1], |
|
mbox_sts[2], mbox_sts[3])); |
|
break; |
|
|
|
case MBOX_ASTS_DATABASE_CHANGED: |
|
/* Queue AEN information and process it in the DPC |
|
* routine */ |
|
if (ha->aen_q_count > 0) { |
|
|
|
/* decrement available counter */ |
|
ha->aen_q_count--; |
|
|
|
for (i = 0; i < MBOX_AEN_REG_COUNT; i++) |
|
ha->aen_q[ha->aen_in].mbox_sts[i] = |
|
mbox_sts[i]; |
|
|
|
/* print debug message */ |
|
DEBUG2(printk("scsi%ld: AEN[%d] %04x queued " |
|
"mb1:0x%x mb2:0x%x mb3:0x%x " |
|
"mb4:0x%x mb5:0x%x\n", |
|
ha->host_no, ha->aen_in, |
|
mbox_sts[0], mbox_sts[1], |
|
mbox_sts[2], mbox_sts[3], |
|
mbox_sts[4], mbox_sts[5])); |
|
|
|
/* advance pointer */ |
|
ha->aen_in++; |
|
if (ha->aen_in == MAX_AEN_ENTRIES) |
|
ha->aen_in = 0; |
|
|
|
/* The DPC routine will process the aen */ |
|
set_bit(DPC_AEN, &ha->dpc_flags); |
|
} else { |
|
DEBUG2(printk("scsi%ld: %s: aen %04x, queue " |
|
"overflowed! AEN LOST!!\n", |
|
ha->host_no, __func__, |
|
mbox_sts[0])); |
|
|
|
DEBUG2(printk("scsi%ld: DUMP AEN QUEUE\n", |
|
ha->host_no)); |
|
|
|
for (i = 0; i < MAX_AEN_ENTRIES; i++) { |
|
DEBUG2(printk("AEN[%d] %04x %04x %04x " |
|
"%04x\n", i, mbox_sts[0], |
|
mbox_sts[1], mbox_sts[2], |
|
mbox_sts[3])); |
|
} |
|
} |
|
break; |
|
|
|
case MBOX_ASTS_TXSCVR_INSERTED: |
|
DEBUG2(printk(KERN_WARNING |
|
"scsi%ld: AEN %04x Transceiver" |
|
" inserted\n", ha->host_no, mbox_sts[0])); |
|
break; |
|
|
|
case MBOX_ASTS_TXSCVR_REMOVED: |
|
DEBUG2(printk(KERN_WARNING |
|
"scsi%ld: AEN %04x Transceiver" |
|
" removed\n", ha->host_no, mbox_sts[0])); |
|
break; |
|
|
|
case MBOX_ASTS_IDC_REQUEST_NOTIFICATION: |
|
if (is_qla8032(ha) || is_qla8042(ha)) { |
|
DEBUG2(ql4_printk(KERN_INFO, ha, |
|
"scsi%ld: AEN %04x, mbox_sts[1]=%08x, mbox_sts[2]=%08x, mbox_sts[3]=%08x, mbox_sts[4]=%08x\n", |
|
ha->host_no, mbox_sts[0], |
|
mbox_sts[1], mbox_sts[2], |
|
mbox_sts[3], mbox_sts[4])); |
|
opcode = mbox_sts[1] >> 16; |
|
if ((opcode == MBOX_CMD_SET_PORT_CONFIG) || |
|
(opcode == MBOX_CMD_PORT_RESET)) { |
|
set_bit(DPC_POST_IDC_ACK, |
|
&ha->dpc_flags); |
|
ha->idc_info.request_desc = mbox_sts[1]; |
|
ha->idc_info.info1 = mbox_sts[2]; |
|
ha->idc_info.info2 = mbox_sts[3]; |
|
ha->idc_info.info3 = mbox_sts[4]; |
|
qla4xxx_wake_dpc(ha); |
|
} |
|
} |
|
break; |
|
|
|
case MBOX_ASTS_IDC_COMPLETE: |
|
if (is_qla8032(ha) || is_qla8042(ha)) { |
|
DEBUG2(ql4_printk(KERN_INFO, ha, |
|
"scsi%ld: AEN %04x, mbox_sts[1]=%08x, mbox_sts[2]=%08x, mbox_sts[3]=%08x, mbox_sts[4]=%08x\n", |
|
ha->host_no, mbox_sts[0], |
|
mbox_sts[1], mbox_sts[2], |
|
mbox_sts[3], mbox_sts[4])); |
|
DEBUG2(ql4_printk(KERN_INFO, ha, |
|
"scsi:%ld: AEN %04x IDC Complete notification\n", |
|
ha->host_no, mbox_sts[0])); |
|
|
|
opcode = mbox_sts[1] >> 16; |
|
if (ha->notify_idc_comp) |
|
complete(&ha->idc_comp); |
|
|
|
if ((opcode == MBOX_CMD_SET_PORT_CONFIG) || |
|
(opcode == MBOX_CMD_PORT_RESET)) |
|
ha->idc_info.info2 = mbox_sts[3]; |
|
|
|
if (qla4_83xx_loopback_in_progress(ha)) { |
|
set_bit(AF_LOOPBACK, &ha->flags); |
|
} else { |
|
clear_bit(AF_LOOPBACK, &ha->flags); |
|
if (ha->saved_acb) |
|
set_bit(DPC_RESTORE_ACB, |
|
&ha->dpc_flags); |
|
} |
|
qla4xxx_wake_dpc(ha); |
|
} |
|
break; |
|
|
|
case MBOX_ASTS_IPV6_DEFAULT_ROUTER_CHANGED: |
|
DEBUG2(ql4_printk(KERN_INFO, ha, |
|
"scsi%ld: AEN %04x, mbox_sts[1]=%08x, mbox_sts[2]=%08x, mbox_sts[3]=%08x, mbox_sts[4]=%08x mbox_sts[5]=%08x\n", |
|
ha->host_no, mbox_sts[0], mbox_sts[1], |
|
mbox_sts[2], mbox_sts[3], mbox_sts[4], |
|
mbox_sts[5])); |
|
DEBUG2(ql4_printk(KERN_INFO, ha, |
|
"scsi%ld: AEN %04x Received IPv6 default router changed notification\n", |
|
ha->host_no, mbox_sts[0])); |
|
qla4xxx_default_router_changed(ha, mbox_sts); |
|
break; |
|
|
|
case MBOX_ASTS_IDC_TIME_EXTEND_NOTIFICATION: |
|
DEBUG2(ql4_printk(KERN_INFO, ha, |
|
"scsi%ld: AEN %04x, mbox_sts[1]=%08x, mbox_sts[2]=%08x, mbox_sts[3]=%08x, mbox_sts[4]=%08x mbox_sts[5]=%08x\n", |
|
ha->host_no, mbox_sts[0], mbox_sts[1], |
|
mbox_sts[2], mbox_sts[3], mbox_sts[4], |
|
mbox_sts[5])); |
|
DEBUG2(ql4_printk(KERN_INFO, ha, |
|
"scsi%ld: AEN %04x Received IDC Extend Timeout notification\n", |
|
ha->host_no, mbox_sts[0])); |
|
/* new IDC timeout */ |
|
ha->idc_extend_tmo = mbox_sts[1]; |
|
break; |
|
|
|
case MBOX_ASTS_INITIALIZATION_FAILED: |
|
DEBUG2(ql4_printk(KERN_INFO, ha, |
|
"scsi%ld: AEN %04x, mbox_sts[3]=%08x\n", |
|
ha->host_no, mbox_sts[0], |
|
mbox_sts[3])); |
|
break; |
|
|
|
case MBOX_ASTS_SYSTEM_WARNING_EVENT: |
|
DEBUG2(ql4_printk(KERN_WARNING, ha, |
|
"scsi%ld: AEN %04x, mbox_sts[1]=%08x, mbox_sts[2]=%08x, mbox_sts[3]=%08x, mbox_sts[4]=%08x mbox_sts[5]=%08x\n", |
|
ha->host_no, mbox_sts[0], mbox_sts[1], |
|
mbox_sts[2], mbox_sts[3], mbox_sts[4], |
|
mbox_sts[5])); |
|
break; |
|
|
|
case MBOX_ASTS_DCBX_CONF_CHANGE: |
|
DEBUG2(ql4_printk(KERN_INFO, ha, |
|
"scsi%ld: AEN %04x, mbox_sts[1]=%08x, mbox_sts[2]=%08x, mbox_sts[3]=%08x, mbox_sts[4]=%08x mbox_sts[5]=%08x\n", |
|
ha->host_no, mbox_sts[0], mbox_sts[1], |
|
mbox_sts[2], mbox_sts[3], mbox_sts[4], |
|
mbox_sts[5])); |
|
DEBUG2(ql4_printk(KERN_INFO, ha, |
|
"scsi%ld: AEN %04x Received DCBX configuration changed notification\n", |
|
ha->host_no, mbox_sts[0])); |
|
break; |
|
|
|
default: |
|
DEBUG2(printk(KERN_WARNING |
|
"scsi%ld: AEN %04x UNKNOWN\n", |
|
ha->host_no, mbox_sts[0])); |
|
break; |
|
} |
|
} else { |
|
DEBUG2(printk("scsi%ld: Unknown mailbox status %08X\n", |
|
ha->host_no, mbox_status)); |
|
|
|
ha->mbox_status[0] = mbox_status; |
|
} |
|
} |
|
|
|
void qla4_83xx_interrupt_service_routine(struct scsi_qla_host *ha, |
|
uint32_t intr_status) |
|
{ |
|
/* Process mailbox/asynch event interrupt.*/ |
|
if (intr_status) { |
|
qla4xxx_isr_decode_mailbox(ha, |
|
readl(&ha->qla4_83xx_reg->mailbox_out[0])); |
|
/* clear the interrupt */ |
|
writel(0, &ha->qla4_83xx_reg->risc_intr); |
|
} else { |
|
qla4xxx_process_response_queue(ha); |
|
} |
|
|
|
/* clear the interrupt */ |
|
writel(0, &ha->qla4_83xx_reg->mb_int_mask); |
|
} |
|
|
|
/** |
|
* qla4_82xx_interrupt_service_routine - isr |
|
* @ha: pointer to host adapter structure. |
|
* @intr_status: Local interrupt status/type. |
|
* |
|
* This is the main interrupt service routine. |
|
* hardware_lock locked upon entry. runs in interrupt context. |
|
**/ |
|
void qla4_82xx_interrupt_service_routine(struct scsi_qla_host *ha, |
|
uint32_t intr_status) |
|
{ |
|
/* Process response queue interrupt. */ |
|
if ((intr_status & HSRX_RISC_IOCB_INT) && |
|
test_bit(AF_INIT_DONE, &ha->flags)) |
|
qla4xxx_process_response_queue(ha); |
|
|
|
/* Process mailbox/asynch event interrupt.*/ |
|
if (intr_status & HSRX_RISC_MB_INT) |
|
qla4xxx_isr_decode_mailbox(ha, |
|
readl(&ha->qla4_82xx_reg->mailbox_out[0])); |
|
|
|
/* clear the interrupt */ |
|
writel(0, &ha->qla4_82xx_reg->host_int); |
|
readl(&ha->qla4_82xx_reg->host_int); |
|
} |
|
|
|
/** |
|
* qla4xxx_interrupt_service_routine - isr |
|
* @ha: pointer to host adapter structure. |
|
* @intr_status: Local interrupt status/type. |
|
* |
|
* This is the main interrupt service routine. |
|
* hardware_lock locked upon entry. runs in interrupt context. |
|
**/ |
|
void qla4xxx_interrupt_service_routine(struct scsi_qla_host * ha, |
|
uint32_t intr_status) |
|
{ |
|
/* Process response queue interrupt. */ |
|
if (intr_status & CSR_SCSI_COMPLETION_INTR) |
|
qla4xxx_process_response_queue(ha); |
|
|
|
/* Process mailbox/asynch event interrupt.*/ |
|
if (intr_status & CSR_SCSI_PROCESSOR_INTR) { |
|
qla4xxx_isr_decode_mailbox(ha, |
|
readl(&ha->reg->mailbox[0])); |
|
|
|
/* Clear Mailbox Interrupt */ |
|
writel(set_rmask(CSR_SCSI_PROCESSOR_INTR), |
|
&ha->reg->ctrl_status); |
|
readl(&ha->reg->ctrl_status); |
|
} |
|
} |
|
|
|
/** |
|
* qla4_82xx_spurious_interrupt - processes spurious interrupt |
|
* @ha: pointer to host adapter structure. |
|
* @reqs_count: . |
|
* |
|
**/ |
|
static void qla4_82xx_spurious_interrupt(struct scsi_qla_host *ha, |
|
uint8_t reqs_count) |
|
{ |
|
if (reqs_count) |
|
return; |
|
|
|
DEBUG2(ql4_printk(KERN_INFO, ha, "Spurious Interrupt\n")); |
|
if (is_qla8022(ha)) { |
|
writel(0, &ha->qla4_82xx_reg->host_int); |
|
if (!ha->pdev->msi_enabled && !ha->pdev->msix_enabled) |
|
qla4_82xx_wr_32(ha, ha->nx_legacy_intr.tgt_mask_reg, |
|
0xfbff); |
|
} |
|
ha->spurious_int_count++; |
|
} |
|
|
|
/** |
|
* qla4xxx_intr_handler - hardware interrupt handler. |
|
* @irq: Unused |
|
* @dev_id: Pointer to host adapter structure |
|
**/ |
|
irqreturn_t qla4xxx_intr_handler(int irq, void *dev_id) |
|
{ |
|
struct scsi_qla_host *ha; |
|
uint32_t intr_status; |
|
unsigned long flags = 0; |
|
uint8_t reqs_count = 0; |
|
|
|
ha = (struct scsi_qla_host *) dev_id; |
|
if (!ha) { |
|
DEBUG2(printk(KERN_INFO |
|
"qla4xxx: Interrupt with NULL host ptr\n")); |
|
return IRQ_NONE; |
|
} |
|
|
|
spin_lock_irqsave(&ha->hardware_lock, flags); |
|
|
|
ha->isr_count++; |
|
/* |
|
* Repeatedly service interrupts up to a maximum of |
|
* MAX_REQS_SERVICED_PER_INTR |
|
*/ |
|
while (1) { |
|
/* |
|
* Read interrupt status |
|
*/ |
|
if (ha->isp_ops->rd_shdw_rsp_q_in(ha) != |
|
ha->response_out) |
|
intr_status = CSR_SCSI_COMPLETION_INTR; |
|
else |
|
intr_status = readl(&ha->reg->ctrl_status); |
|
|
|
if ((intr_status & |
|
(CSR_SCSI_RESET_INTR|CSR_FATAL_ERROR|INTR_PENDING)) == 0) { |
|
if (reqs_count == 0) |
|
ha->spurious_int_count++; |
|
break; |
|
} |
|
|
|
if (intr_status & CSR_FATAL_ERROR) { |
|
DEBUG2(printk(KERN_INFO "scsi%ld: Fatal Error, " |
|
"Status 0x%04x\n", ha->host_no, |
|
readl(isp_port_error_status (ha)))); |
|
|
|
/* Issue Soft Reset to clear this error condition. |
|
* This will prevent the RISC from repeatedly |
|
* interrupting the driver; thus, allowing the DPC to |
|
* get scheduled to continue error recovery. |
|
* NOTE: Disabling RISC interrupts does not work in |
|
* this case, as CSR_FATAL_ERROR overrides |
|
* CSR_SCSI_INTR_ENABLE */ |
|
if ((readl(&ha->reg->ctrl_status) & |
|
CSR_SCSI_RESET_INTR) == 0) { |
|
writel(set_rmask(CSR_SOFT_RESET), |
|
&ha->reg->ctrl_status); |
|
readl(&ha->reg->ctrl_status); |
|
} |
|
|
|
writel(set_rmask(CSR_FATAL_ERROR), |
|
&ha->reg->ctrl_status); |
|
readl(&ha->reg->ctrl_status); |
|
|
|
__qla4xxx_disable_intrs(ha); |
|
|
|
set_bit(DPC_RESET_HA, &ha->dpc_flags); |
|
|
|
break; |
|
} else if (intr_status & CSR_SCSI_RESET_INTR) { |
|
clear_bit(AF_ONLINE, &ha->flags); |
|
__qla4xxx_disable_intrs(ha); |
|
|
|
writel(set_rmask(CSR_SCSI_RESET_INTR), |
|
&ha->reg->ctrl_status); |
|
readl(&ha->reg->ctrl_status); |
|
|
|
if (!test_bit(AF_HA_REMOVAL, &ha->flags)) |
|
set_bit(DPC_RESET_HA_INTR, &ha->dpc_flags); |
|
|
|
break; |
|
} else if (intr_status & INTR_PENDING) { |
|
ha->isp_ops->interrupt_service_routine(ha, intr_status); |
|
ha->total_io_count++; |
|
if (++reqs_count == MAX_REQS_SERVICED_PER_INTR) |
|
break; |
|
} |
|
} |
|
|
|
spin_unlock_irqrestore(&ha->hardware_lock, flags); |
|
|
|
return IRQ_HANDLED; |
|
} |
|
|
|
/** |
|
* qla4_82xx_intr_handler - hardware interrupt handler. |
|
* @irq: Unused |
|
* @dev_id: Pointer to host adapter structure |
|
**/ |
|
irqreturn_t qla4_82xx_intr_handler(int irq, void *dev_id) |
|
{ |
|
struct scsi_qla_host *ha = dev_id; |
|
uint32_t intr_status; |
|
uint32_t status; |
|
unsigned long flags = 0; |
|
uint8_t reqs_count = 0; |
|
|
|
if (unlikely(pci_channel_offline(ha->pdev))) |
|
return IRQ_HANDLED; |
|
|
|
ha->isr_count++; |
|
status = qla4_82xx_rd_32(ha, ISR_INT_VECTOR); |
|
if (!(status & ha->nx_legacy_intr.int_vec_bit)) |
|
return IRQ_NONE; |
|
|
|
status = qla4_82xx_rd_32(ha, ISR_INT_STATE_REG); |
|
if (!ISR_IS_LEGACY_INTR_TRIGGERED(status)) { |
|
DEBUG7(ql4_printk(KERN_INFO, ha, |
|
"%s legacy Int not triggered\n", __func__)); |
|
return IRQ_NONE; |
|
} |
|
|
|
/* clear the interrupt */ |
|
qla4_82xx_wr_32(ha, ha->nx_legacy_intr.tgt_status_reg, 0xffffffff); |
|
|
|
/* read twice to ensure write is flushed */ |
|
qla4_82xx_rd_32(ha, ISR_INT_VECTOR); |
|
qla4_82xx_rd_32(ha, ISR_INT_VECTOR); |
|
|
|
spin_lock_irqsave(&ha->hardware_lock, flags); |
|
while (1) { |
|
if (!(readl(&ha->qla4_82xx_reg->host_int) & |
|
ISRX_82XX_RISC_INT)) { |
|
qla4_82xx_spurious_interrupt(ha, reqs_count); |
|
break; |
|
} |
|
intr_status = readl(&ha->qla4_82xx_reg->host_status); |
|
if ((intr_status & |
|
(HSRX_RISC_MB_INT | HSRX_RISC_IOCB_INT)) == 0) { |
|
qla4_82xx_spurious_interrupt(ha, reqs_count); |
|
break; |
|
} |
|
|
|
ha->isp_ops->interrupt_service_routine(ha, intr_status); |
|
|
|
/* Enable Interrupt */ |
|
qla4_82xx_wr_32(ha, ha->nx_legacy_intr.tgt_mask_reg, 0xfbff); |
|
|
|
if (++reqs_count == MAX_REQS_SERVICED_PER_INTR) |
|
break; |
|
} |
|
|
|
spin_unlock_irqrestore(&ha->hardware_lock, flags); |
|
return IRQ_HANDLED; |
|
} |
|
|
|
#define LEG_INT_PTR_B31 (1 << 31) |
|
#define LEG_INT_PTR_B30 (1 << 30) |
|
#define PF_BITS_MASK (0xF << 16) |
|
|
|
/** |
|
* qla4_83xx_intr_handler - hardware interrupt handler. |
|
* @irq: Unused |
|
* @dev_id: Pointer to host adapter structure |
|
**/ |
|
irqreturn_t qla4_83xx_intr_handler(int irq, void *dev_id) |
|
{ |
|
struct scsi_qla_host *ha = dev_id; |
|
uint32_t leg_int_ptr = 0; |
|
unsigned long flags = 0; |
|
|
|
ha->isr_count++; |
|
leg_int_ptr = readl(&ha->qla4_83xx_reg->leg_int_ptr); |
|
|
|
/* Legacy interrupt is valid if bit31 of leg_int_ptr is set */ |
|
if (!(leg_int_ptr & LEG_INT_PTR_B31)) { |
|
DEBUG7(ql4_printk(KERN_ERR, ha, |
|
"%s: Legacy Interrupt Bit 31 not set, spurious interrupt!\n", |
|
__func__)); |
|
return IRQ_NONE; |
|
} |
|
|
|
/* Validate the PCIE function ID set in leg_int_ptr bits [19..16] */ |
|
if ((leg_int_ptr & PF_BITS_MASK) != ha->pf_bit) { |
|
DEBUG7(ql4_printk(KERN_ERR, ha, |
|
"%s: Incorrect function ID 0x%x in legacy interrupt register, ha->pf_bit = 0x%x\n", |
|
__func__, (leg_int_ptr & PF_BITS_MASK), |
|
ha->pf_bit)); |
|
return IRQ_NONE; |
|
} |
|
|
|
/* To de-assert legacy interrupt, write 0 to Legacy Interrupt Trigger |
|
* Control register and poll till Legacy Interrupt Pointer register |
|
* bit30 is 0. |
|
*/ |
|
writel(0, &ha->qla4_83xx_reg->leg_int_trig); |
|
do { |
|
leg_int_ptr = readl(&ha->qla4_83xx_reg->leg_int_ptr); |
|
if ((leg_int_ptr & PF_BITS_MASK) != ha->pf_bit) |
|
break; |
|
} while (leg_int_ptr & LEG_INT_PTR_B30); |
|
|
|
spin_lock_irqsave(&ha->hardware_lock, flags); |
|
leg_int_ptr = readl(&ha->qla4_83xx_reg->risc_intr); |
|
ha->isp_ops->interrupt_service_routine(ha, leg_int_ptr); |
|
spin_unlock_irqrestore(&ha->hardware_lock, flags); |
|
|
|
return IRQ_HANDLED; |
|
} |
|
|
|
irqreturn_t |
|
qla4_8xxx_msi_handler(int irq, void *dev_id) |
|
{ |
|
struct scsi_qla_host *ha; |
|
|
|
ha = (struct scsi_qla_host *) dev_id; |
|
if (!ha) { |
|
DEBUG2(printk(KERN_INFO |
|
"qla4xxx: MSIX: Interrupt with NULL host ptr\n")); |
|
return IRQ_NONE; |
|
} |
|
|
|
ha->isr_count++; |
|
/* clear the interrupt */ |
|
qla4_82xx_wr_32(ha, ha->nx_legacy_intr.tgt_status_reg, 0xffffffff); |
|
|
|
/* read twice to ensure write is flushed */ |
|
qla4_82xx_rd_32(ha, ISR_INT_VECTOR); |
|
qla4_82xx_rd_32(ha, ISR_INT_VECTOR); |
|
|
|
return qla4_8xxx_default_intr_handler(irq, dev_id); |
|
} |
|
|
|
static irqreturn_t qla4_83xx_mailbox_intr_handler(int irq, void *dev_id) |
|
{ |
|
struct scsi_qla_host *ha = dev_id; |
|
unsigned long flags; |
|
uint32_t ival = 0; |
|
|
|
spin_lock_irqsave(&ha->hardware_lock, flags); |
|
|
|
ival = readl(&ha->qla4_83xx_reg->risc_intr); |
|
if (ival == 0) { |
|
ql4_printk(KERN_INFO, ha, |
|
"%s: It is a spurious mailbox interrupt!\n", |
|
__func__); |
|
ival = readl(&ha->qla4_83xx_reg->mb_int_mask); |
|
ival &= ~INT_MASK_FW_MB; |
|
writel(ival, &ha->qla4_83xx_reg->mb_int_mask); |
|
goto exit; |
|
} |
|
|
|
qla4xxx_isr_decode_mailbox(ha, |
|
readl(&ha->qla4_83xx_reg->mailbox_out[0])); |
|
writel(0, &ha->qla4_83xx_reg->risc_intr); |
|
ival = readl(&ha->qla4_83xx_reg->mb_int_mask); |
|
ival &= ~INT_MASK_FW_MB; |
|
writel(ival, &ha->qla4_83xx_reg->mb_int_mask); |
|
ha->isr_count++; |
|
exit: |
|
spin_unlock_irqrestore(&ha->hardware_lock, flags); |
|
return IRQ_HANDLED; |
|
} |
|
|
|
/** |
|
* qla4_8xxx_default_intr_handler - hardware interrupt handler. |
|
* @irq: Unused |
|
* @dev_id: Pointer to host adapter structure |
|
* |
|
* This interrupt handler is called directly for MSI-X, and |
|
* called indirectly for MSI. |
|
**/ |
|
irqreturn_t |
|
qla4_8xxx_default_intr_handler(int irq, void *dev_id) |
|
{ |
|
struct scsi_qla_host *ha = dev_id; |
|
unsigned long flags; |
|
uint32_t intr_status; |
|
uint8_t reqs_count = 0; |
|
|
|
if (is_qla8032(ha) || is_qla8042(ha)) { |
|
qla4_83xx_mailbox_intr_handler(irq, dev_id); |
|
} else { |
|
spin_lock_irqsave(&ha->hardware_lock, flags); |
|
while (1) { |
|
if (!(readl(&ha->qla4_82xx_reg->host_int) & |
|
ISRX_82XX_RISC_INT)) { |
|
qla4_82xx_spurious_interrupt(ha, reqs_count); |
|
break; |
|
} |
|
|
|
intr_status = readl(&ha->qla4_82xx_reg->host_status); |
|
if ((intr_status & |
|
(HSRX_RISC_MB_INT | HSRX_RISC_IOCB_INT)) == 0) { |
|
qla4_82xx_spurious_interrupt(ha, reqs_count); |
|
break; |
|
} |
|
|
|
ha->isp_ops->interrupt_service_routine(ha, intr_status); |
|
|
|
if (++reqs_count == MAX_REQS_SERVICED_PER_INTR) |
|
break; |
|
} |
|
ha->isr_count++; |
|
spin_unlock_irqrestore(&ha->hardware_lock, flags); |
|
} |
|
return IRQ_HANDLED; |
|
} |
|
|
|
irqreturn_t |
|
qla4_8xxx_msix_rsp_q(int irq, void *dev_id) |
|
{ |
|
struct scsi_qla_host *ha = dev_id; |
|
unsigned long flags; |
|
int intr_status; |
|
uint32_t ival = 0; |
|
|
|
spin_lock_irqsave(&ha->hardware_lock, flags); |
|
if (is_qla8032(ha) || is_qla8042(ha)) { |
|
ival = readl(&ha->qla4_83xx_reg->iocb_int_mask); |
|
if (ival == 0) { |
|
ql4_printk(KERN_INFO, ha, "%s: It is a spurious iocb interrupt!\n", |
|
__func__); |
|
goto exit_msix_rsp_q; |
|
} |
|
qla4xxx_process_response_queue(ha); |
|
writel(0, &ha->qla4_83xx_reg->iocb_int_mask); |
|
} else { |
|
intr_status = readl(&ha->qla4_82xx_reg->host_status); |
|
if (intr_status & HSRX_RISC_IOCB_INT) { |
|
qla4xxx_process_response_queue(ha); |
|
writel(0, &ha->qla4_82xx_reg->host_int); |
|
} else { |
|
ql4_printk(KERN_INFO, ha, "%s: spurious iocb interrupt...\n", |
|
__func__); |
|
goto exit_msix_rsp_q; |
|
} |
|
} |
|
ha->isr_count++; |
|
exit_msix_rsp_q: |
|
spin_unlock_irqrestore(&ha->hardware_lock, flags); |
|
return IRQ_HANDLED; |
|
} |
|
|
|
/** |
|
* qla4xxx_process_aen - processes AENs generated by firmware |
|
* @ha: pointer to host adapter structure. |
|
* @process_aen: type of AENs to process |
|
* |
|
* Processes specific types of Asynchronous Events generated by firmware. |
|
* The type of AENs to process is specified by process_aen and can be |
|
* PROCESS_ALL_AENS 0 |
|
* FLUSH_DDB_CHANGED_AENS 1 |
|
* RELOGIN_DDB_CHANGED_AENS 2 |
|
**/ |
|
void qla4xxx_process_aen(struct scsi_qla_host * ha, uint8_t process_aen) |
|
{ |
|
uint32_t mbox_sts[MBOX_AEN_REG_COUNT]; |
|
struct aen *aen; |
|
int i; |
|
unsigned long flags; |
|
|
|
spin_lock_irqsave(&ha->hardware_lock, flags); |
|
while (ha->aen_out != ha->aen_in) { |
|
aen = &ha->aen_q[ha->aen_out]; |
|
/* copy aen information to local structure */ |
|
for (i = 0; i < MBOX_AEN_REG_COUNT; i++) |
|
mbox_sts[i] = aen->mbox_sts[i]; |
|
|
|
ha->aen_q_count++; |
|
ha->aen_out++; |
|
|
|
if (ha->aen_out == MAX_AEN_ENTRIES) |
|
ha->aen_out = 0; |
|
|
|
spin_unlock_irqrestore(&ha->hardware_lock, flags); |
|
|
|
DEBUG2(printk("qla4xxx(%ld): AEN[%d]=0x%08x, mbx1=0x%08x mbx2=0x%08x" |
|
" mbx3=0x%08x mbx4=0x%08x\n", ha->host_no, |
|
(ha->aen_out ? (ha->aen_out-1): (MAX_AEN_ENTRIES-1)), |
|
mbox_sts[0], mbox_sts[1], mbox_sts[2], |
|
mbox_sts[3], mbox_sts[4])); |
|
|
|
switch (mbox_sts[0]) { |
|
case MBOX_ASTS_DATABASE_CHANGED: |
|
switch (process_aen) { |
|
case FLUSH_DDB_CHANGED_AENS: |
|
DEBUG2(printk("scsi%ld: AEN[%d] %04x, index " |
|
"[%d] state=%04x FLUSHED!\n", |
|
ha->host_no, ha->aen_out, |
|
mbox_sts[0], mbox_sts[2], |
|
mbox_sts[3])); |
|
break; |
|
case PROCESS_ALL_AENS: |
|
default: |
|
/* Specific device. */ |
|
if (mbox_sts[1] == 1) |
|
qla4xxx_process_ddb_changed(ha, |
|
mbox_sts[2], mbox_sts[3], |
|
mbox_sts[4]); |
|
break; |
|
} |
|
} |
|
spin_lock_irqsave(&ha->hardware_lock, flags); |
|
} |
|
spin_unlock_irqrestore(&ha->hardware_lock, flags); |
|
} |
|
|
|
int qla4xxx_request_irqs(struct scsi_qla_host *ha) |
|
{ |
|
int ret = 0; |
|
int rval = QLA_ERROR; |
|
|
|
if (is_qla40XX(ha)) |
|
goto try_intx; |
|
|
|
if (ql4xenablemsix == 2) { |
|
/* Note: MSI Interrupts not supported for ISP8324 and ISP8042 */ |
|
if (is_qla8032(ha) || is_qla8042(ha)) { |
|
ql4_printk(KERN_INFO, ha, "%s: MSI Interrupts not supported for ISP%04x, Falling back-to INTx mode\n", |
|
__func__, ha->pdev->device); |
|
goto try_intx; |
|
} |
|
goto try_msi; |
|
} |
|
|
|
if (ql4xenablemsix == 0 || ql4xenablemsix != 1) |
|
goto try_intx; |
|
|
|
/* Trying MSI-X */ |
|
ret = qla4_8xxx_enable_msix(ha); |
|
if (!ret) { |
|
DEBUG2(ql4_printk(KERN_INFO, ha, |
|
"MSI-X: Enabled (0x%X).\n", ha->revision_id)); |
|
goto irq_attached; |
|
} else { |
|
if (is_qla8032(ha) || is_qla8042(ha)) { |
|
ql4_printk(KERN_INFO, ha, "%s: ISP%04x: MSI-X: Falling back-to INTx mode. ret = %d\n", |
|
__func__, ha->pdev->device, ret); |
|
goto try_intx; |
|
} |
|
} |
|
|
|
ql4_printk(KERN_WARNING, ha, |
|
"MSI-X: Falling back-to MSI mode -- %d.\n", ret); |
|
|
|
try_msi: |
|
/* Trying MSI */ |
|
ret = pci_alloc_irq_vectors(ha->pdev, 1, 1, PCI_IRQ_MSI); |
|
if (ret > 0) { |
|
ret = request_irq(ha->pdev->irq, qla4_8xxx_msi_handler, |
|
0, DRIVER_NAME, ha); |
|
if (!ret) { |
|
DEBUG2(ql4_printk(KERN_INFO, ha, "MSI: Enabled.\n")); |
|
goto irq_attached; |
|
} else { |
|
ql4_printk(KERN_WARNING, ha, |
|
"MSI: Failed to reserve interrupt %d " |
|
"already in use.\n", ha->pdev->irq); |
|
pci_free_irq_vectors(ha->pdev); |
|
} |
|
} |
|
|
|
try_intx: |
|
if (is_qla8022(ha)) { |
|
ql4_printk(KERN_WARNING, ha, "%s: ISP82xx Legacy interrupt not supported\n", |
|
__func__); |
|
goto irq_not_attached; |
|
} |
|
|
|
/* Trying INTx */ |
|
ret = request_irq(ha->pdev->irq, ha->isp_ops->intr_handler, |
|
IRQF_SHARED, DRIVER_NAME, ha); |
|
if (!ret) { |
|
DEBUG2(ql4_printk(KERN_INFO, ha, "INTx: Enabled.\n")); |
|
goto irq_attached; |
|
|
|
} else { |
|
ql4_printk(KERN_WARNING, ha, |
|
"INTx: Failed to reserve interrupt %d already in" |
|
" use.\n", ha->pdev->irq); |
|
goto irq_not_attached; |
|
} |
|
|
|
irq_attached: |
|
set_bit(AF_IRQ_ATTACHED, &ha->flags); |
|
ha->host->irq = ha->pdev->irq; |
|
ql4_printk(KERN_INFO, ha, "%s: irq %d attached\n", |
|
__func__, ha->pdev->irq); |
|
rval = QLA_SUCCESS; |
|
irq_not_attached: |
|
return rval; |
|
} |
|
|
|
void qla4xxx_free_irqs(struct scsi_qla_host *ha) |
|
{ |
|
if (!test_and_clear_bit(AF_IRQ_ATTACHED, &ha->flags)) |
|
return; |
|
|
|
if (ha->pdev->msix_enabled) |
|
free_irq(pci_irq_vector(ha->pdev, 1), ha); |
|
free_irq(pci_irq_vector(ha->pdev, 0), ha); |
|
pci_free_irq_vectors(ha->pdev); |
|
}
|
|
|