#include "ql4_inline.h"
/**
- * qla2x00_process_completed_request() - Process a Fast Post response.
- * @ha: SCSI driver HA context
- * @index: SRB index
+ * 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.
**/
-static void qla4xxx_process_completed_request(struct scsi_qla_host *ha,
- uint32_t index)
+static void qla4xxx_copy_sense(struct scsi_qla_host *ha,
+ struct status_entry *sts_entry,
+ struct srb *srb)
{
- struct srb *srb;
+ struct scsi_cmnd *cmd = srb->cmd;
+ uint16_t sense_len;
- srb = qla4xxx_del_from_active_array(ha, index);
- if (srb) {
- /* Save ISP completion status */
- srb->cmd->result = DID_OK << 16;
- qla4xxx_srb_compl(ha, srb);
- } else {
- DEBUG2(printk("scsi%ld: Invalid ISP SCSI completion handle = "
- "%d\n", ha->host_no, index));
- set_bit(DPC_RESET_HA, &ha->dpc_flags);
+ memset(cmd->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
+ sense_len = le16_to_cpu(sts_entry->senseDataByteCnt);
+ if (sense_len == 0)
+ 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;
+
+ /* Copy sense from sts_entry pkt */
+ sense_len = min_t(uint16_t, sense_len, IOCB_MAX_SENSEDATA_LEN);
+ memcpy(cmd->sense_buffer, sts_entry->senseData, sense_len);
+
+ DEBUG2(printk(KERN_INFO "scsi%ld:%d:%d:%d: %s: sense key = %x, "
+ "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]));
+
+ DEBUG5(qla4xxx_dump_buffer(cmd->sense_buffer, sense_len));
+ srb->flags |= SRB_GOT_SENSE;
+
+ /* Update srb, in case a sts_cont pkt follows */
+ srb->req_sense_ptr += sense_len;
+ srb->req_sense_len -= sense_len;
+ if (srb->req_sense_len != 0)
+ ha->status_srb = srb;
+ else
+ ha->status_srb = NULL;
+}
+
+/**
+ * qla4xxx_status_cont_entry - Process a Status Continuations entry.
+ * @ha: SCSI driver HA context
+ * @sts_cont: Entry pointer
+ *
+ * Extended sense data.
+ */
+static void
+qla4xxx_status_cont_entry(struct scsi_qla_host *ha,
+ struct status_cont_entry *sts_cont)
+{
+ struct srb *srb = ha->status_srb;
+ struct scsi_cmnd *cmd;
+ uint8_t sense_len;
+
+ if (srb == NULL)
+ return;
+
+ 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));
+ ha->status_srb = NULL;
+ return;
+ }
+
+ /* Copy sense data. */
+ sense_len = min_t(uint16_t, srb->req_sense_len,
+ IOCB_MAX_EXT_SENSEDATA_LEN);
+ memcpy(srb->req_sense_ptr, sts_cont->ext_sense_data, sense_len);
+ DEBUG5(qla4xxx_dump_buffer(srb->req_sense_ptr, sense_len));
+
+ srb->req_sense_ptr += sense_len;
+ srb->req_sense_len -= sense_len;
+
+ /* Place command on done queue. */
+ if (srb->req_sense_len == 0) {
+ kref_put(&srb->srb_ref, qla4xxx_srb_compl);
+ ha->status_srb = NULL;
}
}
struct srb *srb;
struct ddb_entry *ddb_entry;
uint32_t residual;
- uint16_t sensebytecnt;
-
- if (sts_entry->completionStatus == SCS_COMPLETE &&
- sts_entry->scsiStatus == 0) {
- qla4xxx_process_completed_request(ha,
- le32_to_cpu(sts_entry->
- handle));
- return;
- }
srb = qla4xxx_del_from_active_array(ha, le32_to_cpu(sts_entry->handle));
if (!srb) {
"handle 0x%x, sp=%p. This cmd may have already "
"been completed.\n", ha->host_no, __func__,
le32_to_cpu(sts_entry->handle), srb));
+ dev_warn(&ha->pdev->dev, "%s invalid status entry:"
+ " handle=0x%0x\n", __func__, sts_entry->handle);
+ set_bit(DPC_RESET_HA, &ha->dpc_flags);
return;
}
scsi_status = sts_entry->scsiStatus;
switch (sts_entry->completionStatus) {
case SCS_COMPLETE:
- if (scsi_status == 0) {
- cmd->result = DID_OK << 16;
+
+ if (sts_entry->iscsiFlags & ISCSI_FLAG_RESIDUAL_OVER) {
+ cmd->result = DID_ERROR << 16;
break;
}
- if (sts_entry->iscsiFlags &
- (ISCSI_FLAG_RESIDUAL_OVER|ISCSI_FLAG_RESIDUAL_UNDER))
+ if (sts_entry->iscsiFlags &ISCSI_FLAG_RESIDUAL_UNDER) {
scsi_set_resid(cmd, residual);
+ if (!scsi_status && ((scsi_bufflen(cmd) - residual) <
+ cmd->underflow)) {
+
+ cmd->result = DID_ERROR << 16;
+
+ DEBUG2(printk("scsi%ld:%d:%d:%d: %s: "
+ "Mid-layer Data underrun0, "
+ "xferlen = 0x%x, "
+ "residual = 0x%x\n", ha->host_no,
+ cmd->device->channel,
+ cmd->device->id,
+ cmd->device->lun, __func__,
+ scsi_bufflen(cmd), residual));
+ break;
+ }
+ }
cmd->result = DID_OK << 16 | scsi_status;
break;
/* Copy Sense Data into sense buffer. */
- memset(cmd->sense_buffer, 0, sizeof(cmd->sense_buffer));
-
- sensebytecnt = le16_to_cpu(sts_entry->senseDataByteCnt);
- if (sensebytecnt == 0)
- break;
-
- memcpy(cmd->sense_buffer, sts_entry->senseData,
- min(sensebytecnt,
- (uint16_t) sizeof(cmd->sense_buffer)));
-
- DEBUG2(printk("scsi%ld:%d:%d:%d: %s: sense key = %x, "
- "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[12],
- sts_entry->senseData[13]));
-
- srb->flags |= SRB_GOT_SENSE;
+ qla4xxx_copy_sense(ha, sts_entry, srb);
break;
case SCS_INCOMPLETE:
ha->host_no, cmd->device->channel,
cmd->device->id, cmd->device->lun));
- cmd->result = DID_BUS_BUSY << 16;
+ cmd->result = DID_TRANSPORT_DISRUPTED << 16;
/*
* Mark device missing so that we won't continue to send
case SCS_DATA_UNDERRUN:
case SCS_DATA_OVERRUN:
- if (sts_entry->iscsiFlags & ISCSI_FLAG_RESIDUAL_OVER) {
- DEBUG2(printk("scsi%ld:%d:%d:%d: %s: " "Data overrun, "
- "residual = 0x%x\n", ha->host_no,
+ if ((sts_entry->iscsiFlags & ISCSI_FLAG_RESIDUAL_OVER) ||
+ (sts_entry->completionStatus == SCS_DATA_OVERRUN)) {
+ DEBUG2(printk("scsi%ld:%d:%d:%d: %s: " "Data overrun\n",
+ ha->host_no,
cmd->device->channel, cmd->device->id,
- cmd->device->lun, __func__, residual));
+ cmd->device->lun, __func__));
cmd->result = DID_ERROR << 16;
break;
}
- if ((sts_entry->iscsiFlags & ISCSI_FLAG_RESIDUAL_UNDER) == 0) {
- /*
- * Firmware detected a SCSI transport underrun
- * condition
- */
- scsi_set_resid(cmd, residual);
- DEBUG2(printk("scsi%ld:%d:%d:%d: %s: UNDERRUN status "
- "detected, xferlen = 0x%x, residual = "
- "0x%x\n",
- ha->host_no, cmd->device->channel,
- cmd->device->id,
- cmd->device->lun, __func__,
- scsi_bufflen(cmd),
- residual));
- }
+ scsi_set_resid(cmd, residual);
/*
* If there is scsi_status, it takes precedense over
break;
/* Copy Sense Data into sense buffer. */
- memset(cmd->sense_buffer, 0,
- sizeof(cmd->sense_buffer));
-
- sensebytecnt =
- le16_to_cpu(sts_entry->senseDataByteCnt);
- if (sensebytecnt == 0)
- break;
-
- memcpy(cmd->sense_buffer, sts_entry->senseData,
- min(sensebytecnt,
- (uint16_t) sizeof(cmd->sense_buffer)));
-
- DEBUG2(printk("scsi%ld:%d:%d:%d: %s: sense key = %x, "
- "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[12],
- sts_entry->senseData[13]));
+ qla4xxx_copy_sense(ha, sts_entry, srb);
} else {
/*
* If RISC reports underrun and target does not
* will return DID_ERROR.
*/
DEBUG2(printk("scsi%ld:%d:%d:%d: %s: "
- "Mid-layer Data underrun, "
- "xferlen = 0x%x, "
- "residual = 0x%x\n", ha->host_no,
- cmd->device->channel,
- cmd->device->id,
- cmd->device->lun, __func__,
- scsi_bufflen(cmd), residual));
+ "Mid-layer Data underrun1, "
+ "xferlen = 0x%x, "
+ "residual = 0x%x\n", ha->host_no,
+ cmd->device->channel,
+ cmd->device->id,
+ cmd->device->lun, __func__,
+ scsi_bufflen(cmd), residual));
cmd->result = DID_ERROR << 16;
} else {
if (atomic_read(&ddb_entry->state) == DDB_STATE_ONLINE)
qla4xxx_mark_device_missing(ha, ddb_entry);
- cmd->result = DID_BUS_BUSY << 16;
+ cmd->result = DID_TRANSPORT_DISRUPTED << 16;
break;
case SCS_QUEUE_FULL:
status_entry_exit:
- /* complete the request */
+ /* complete the request, if not waiting for status_continuation pkt */
srb->cc_stat = sts_entry->completionStatus;
- qla4xxx_srb_compl(ha, srb);
+ if (ha->status_srb == NULL)
+ kref_put(&srb->srb_ref, qla4xxx_srb_compl);
}
/**
/* process entry */
switch (sts_entry->hdr.entryType) {
case ET_STATUS:
- /*
- * Common status - Single completion posted in single
- * IOSB.
- */
+ /* Common status */
qla4xxx_status_entry(ha, sts_entry);
break;
break;
case ET_STATUS_CONTINUATION:
- /* Just throw away the status continuation entries */
- DEBUG2(printk("scsi%ld: %s: Status Continuation entry "
- "- ignoring\n", ha->host_no, __func__));
+ qla4xxx_status_cont_entry(ha,
+ (struct status_cont_entry *) sts_entry);
break;
case ET_COMMAND:
/* ETRY normally by sending it back with
* DID_BUS_BUSY */
srb->cmd->result = DID_BUS_BUSY << 16;
- qla4xxx_srb_compl(ha, srb);
+ kref_put(&srb->srb_ref, qla4xxx_srb_compl);
break;
case ET_CONTINUE:
break;
case MBOX_ASTS_LINK_UP:
- DEBUG2(printk("scsi%ld: AEN %04x Adapter LINK UP\n",
- ha->host_no, mbox_status));
set_bit(AF_LINK_UP, &ha->flags);
+ if (test_bit(AF_INIT_DONE, &ha->flags))
+ set_bit(DPC_LINK_CHANGED, &ha->dpc_flags);
+
+ DEBUG2(printk(KERN_INFO "scsi%ld: AEN %04x Adapter"
+ " LINK UP\n", ha->host_no,
+ mbox_status));
break;
case MBOX_ASTS_LINK_DOWN:
- DEBUG2(printk("scsi%ld: AEN %04x Adapter LINK DOWN\n",
- ha->host_no, mbox_status));
clear_bit(AF_LINK_UP, &ha->flags);
+ set_bit(DPC_LINK_CHANGED, &ha->dpc_flags);
+
+ DEBUG2(printk(KERN_INFO "scsi%ld: AEN %04x Adapter"
+ " LINK DOWN\n", ha->host_no,
+ mbox_status));
break;
case MBOX_ASTS_HEARTBEAT:
qla4xxx_reinitialize_ddb_list(ha);
} else if (mbox_sts[1] == 1) { /* Specific device. */
qla4xxx_process_ddb_changed(ha, mbox_sts[2],
- mbox_sts[3]);
+ mbox_sts[3], mbox_sts[4]);
}
break;
}
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff