mirror of https://gitee.com/openkylin/linux.git
aacraid: Tune response path if IsFastPath bit set
If 'IsFastPath' bit is set, then response path assumes no error and skips error check. Reviewed-by: Murthy Bhat <Murthy.Bhat@pmcs.com> Reviewed-by: Karthikeya Sunkesula <Karthikeya.Sunkesula@pmcs.com> Signed-off-by: Mahesh Rajashekhara <Mahesh.Rajashekhara@pmcs.com> Signed-off-by: James Bottomley <JBottomley@Odin.com>
This commit is contained in:
Mahesh Rajashekhara
James Bottomley
parent
c6992781d9
commit
55b8760847
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@ -2977,11 +2977,16 @@ static void aac_srb_callback(void *context, struct fib * fibptr)
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return;
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return;
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BUG_ON(fibptr == NULL);
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BUG_ON(fibptr == NULL);
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dev = fibptr->dev;
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dev = fibptr->dev;
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srbreply = (struct aac_srb_reply *) fib_data(fibptr);
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scsi_dma_unmap(scsicmd);
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/* expose physical device if expose_physicald flag is on */
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if (scsicmd->cmnd[0] == INQUIRY && !(scsicmd->cmnd[1] & 0x01)
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&& expose_physicals > 0)
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aac_expose_phy_device(scsicmd);
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srbreply = (struct aac_srb_reply *) fib_data(fibptr);
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scsicmd->sense_buffer[0] = '\0'; /* Initialize sense valid flag to false */
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scsicmd->sense_buffer[0] = '\0'; /* Initialize sense valid flag to false */
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if (fibptr->flags & FIB_CONTEXT_FLAG_FASTRESP) {
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if (fibptr->flags & FIB_CONTEXT_FLAG_FASTRESP) {
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@ -2994,147 +2999,157 @@ static void aac_srb_callback(void *context, struct fib * fibptr)
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*/
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*/
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scsi_set_resid(scsicmd, scsi_bufflen(scsicmd)
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scsi_set_resid(scsicmd, scsi_bufflen(scsicmd)
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- le32_to_cpu(srbreply->data_xfer_length));
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- le32_to_cpu(srbreply->data_xfer_length));
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}
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/*
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* First check the fib status
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*/
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scsi_dma_unmap(scsicmd);
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if (le32_to_cpu(srbreply->status) != ST_OK) {
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int len;
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/* expose physical device if expose_physicald flag is on */
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printk(KERN_WARNING "aac_srb_callback: srb failed, status = %d\n", le32_to_cpu(srbreply->status));
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if (scsicmd->cmnd[0] == INQUIRY && !(scsicmd->cmnd[1] & 0x01)
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len = min_t(u32, le32_to_cpu(srbreply->sense_data_size),
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&& expose_physicals > 0)
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SCSI_SENSE_BUFFERSIZE);
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aac_expose_phy_device(scsicmd);
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scsicmd->result = DID_ERROR << 16
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| COMMAND_COMPLETE << 8
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| SAM_STAT_CHECK_CONDITION;
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memcpy(scsicmd->sense_buffer,
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srbreply->sense_data, len);
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}
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/*
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/*
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* First check the fib status
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* Next check the srb status
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*/
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*/
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switch ((le32_to_cpu(srbreply->srb_status))&0x3f) {
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if (le32_to_cpu(srbreply->status) != ST_OK){
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case SRB_STATUS_ERROR_RECOVERY:
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int len;
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case SRB_STATUS_PENDING:
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printk(KERN_WARNING "aac_srb_callback: srb failed, status = %d\n", le32_to_cpu(srbreply->status));
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case SRB_STATUS_SUCCESS:
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len = min_t(u32, le32_to_cpu(srbreply->sense_data_size),
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SCSI_SENSE_BUFFERSIZE);
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scsicmd->result = DID_ERROR << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_CHECK_CONDITION;
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memcpy(scsicmd->sense_buffer, srbreply->sense_data, len);
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}
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/*
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* Next check the srb status
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*/
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switch( (le32_to_cpu(srbreply->srb_status))&0x3f){
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case SRB_STATUS_ERROR_RECOVERY:
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case SRB_STATUS_PENDING:
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case SRB_STATUS_SUCCESS:
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scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8;
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break;
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case SRB_STATUS_DATA_OVERRUN:
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switch(scsicmd->cmnd[0]){
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case READ_6:
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case WRITE_6:
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case READ_10:
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case WRITE_10:
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case READ_12:
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case WRITE_12:
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case READ_16:
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case WRITE_16:
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if (le32_to_cpu(srbreply->data_xfer_length) < scsicmd->underflow) {
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printk(KERN_WARNING"aacraid: SCSI CMD underflow\n");
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} else {
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printk(KERN_WARNING"aacraid: SCSI CMD Data Overrun\n");
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}
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scsicmd->result = DID_ERROR << 16 | COMMAND_COMPLETE << 8;
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break;
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case INQUIRY: {
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scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8;
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scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8;
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break;
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break;
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}
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case SRB_STATUS_DATA_OVERRUN:
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default:
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switch (scsicmd->cmnd[0]) {
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scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8;
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case READ_6:
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break;
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case WRITE_6:
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}
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case READ_10:
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break;
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case WRITE_10:
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case SRB_STATUS_ABORTED:
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case READ_12:
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scsicmd->result = DID_ABORT << 16 | ABORT << 8;
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case WRITE_12:
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break;
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case READ_16:
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case SRB_STATUS_ABORT_FAILED:
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case WRITE_16:
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// Not sure about this one - but assuming the hba was trying to abort for some reason
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if (le32_to_cpu(srbreply->data_xfer_length)
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scsicmd->result = DID_ERROR << 16 | ABORT << 8;
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< scsicmd->underflow)
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break;
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printk(KERN_WARNING"aacraid: SCSI CMD underflow\n");
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case SRB_STATUS_PARITY_ERROR:
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else
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scsicmd->result = DID_PARITY << 16 | MSG_PARITY_ERROR << 8;
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printk(KERN_WARNING"aacraid: SCSI CMD Data Overrun\n");
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break;
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scsicmd->result = DID_ERROR << 16
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case SRB_STATUS_NO_DEVICE:
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| COMMAND_COMPLETE << 8;
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case SRB_STATUS_INVALID_PATH_ID:
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case SRB_STATUS_INVALID_TARGET_ID:
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case SRB_STATUS_INVALID_LUN:
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case SRB_STATUS_SELECTION_TIMEOUT:
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scsicmd->result = DID_NO_CONNECT << 16 | COMMAND_COMPLETE << 8;
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break;
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case SRB_STATUS_COMMAND_TIMEOUT:
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case SRB_STATUS_TIMEOUT:
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scsicmd->result = DID_TIME_OUT << 16 | COMMAND_COMPLETE << 8;
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break;
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case SRB_STATUS_BUSY:
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scsicmd->result = DID_BUS_BUSY << 16 | COMMAND_COMPLETE << 8;
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break;
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case SRB_STATUS_BUS_RESET:
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scsicmd->result = DID_RESET << 16 | COMMAND_COMPLETE << 8;
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break;
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case SRB_STATUS_MESSAGE_REJECTED:
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scsicmd->result = DID_ERROR << 16 | MESSAGE_REJECT << 8;
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break;
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case SRB_STATUS_REQUEST_FLUSHED:
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case SRB_STATUS_ERROR:
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case SRB_STATUS_INVALID_REQUEST:
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case SRB_STATUS_REQUEST_SENSE_FAILED:
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case SRB_STATUS_NO_HBA:
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case SRB_STATUS_UNEXPECTED_BUS_FREE:
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case SRB_STATUS_PHASE_SEQUENCE_FAILURE:
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case SRB_STATUS_BAD_SRB_BLOCK_LENGTH:
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case SRB_STATUS_DELAYED_RETRY:
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case SRB_STATUS_BAD_FUNCTION:
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case SRB_STATUS_NOT_STARTED:
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case SRB_STATUS_NOT_IN_USE:
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case SRB_STATUS_FORCE_ABORT:
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case SRB_STATUS_DOMAIN_VALIDATION_FAIL:
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default:
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#ifdef AAC_DETAILED_STATUS_INFO
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printk("aacraid: SRB ERROR(%u) %s scsi cmd 0x%x - scsi status 0x%x\n",
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le32_to_cpu(srbreply->srb_status) & 0x3F,
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aac_get_status_string(
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le32_to_cpu(srbreply->srb_status) & 0x3F),
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scsicmd->cmnd[0],
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le32_to_cpu(srbreply->scsi_status));
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#endif
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if ((scsicmd->cmnd[0] == ATA_12)
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|| (scsicmd->cmnd[0] == ATA_16)) {
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if (scsicmd->cmnd[2] & (0x01 << 5)) {
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scsicmd->result = DID_OK << 16
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| COMMAND_COMPLETE << 8;
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break;
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break;
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case INQUIRY: {
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scsicmd->result = DID_OK << 16
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| COMMAND_COMPLETE << 8;
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break;
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}
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default:
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scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8;
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break;
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}
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break;
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case SRB_STATUS_ABORTED:
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scsicmd->result = DID_ABORT << 16 | ABORT << 8;
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break;
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case SRB_STATUS_ABORT_FAILED:
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/*
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* Not sure about this one - but assuming the
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* hba was trying to abort for some reason
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*/
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scsicmd->result = DID_ERROR << 16 | ABORT << 8;
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break;
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case SRB_STATUS_PARITY_ERROR:
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scsicmd->result = DID_PARITY << 16
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| MSG_PARITY_ERROR << 8;
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break;
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case SRB_STATUS_NO_DEVICE:
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case SRB_STATUS_INVALID_PATH_ID:
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case SRB_STATUS_INVALID_TARGET_ID:
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case SRB_STATUS_INVALID_LUN:
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case SRB_STATUS_SELECTION_TIMEOUT:
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scsicmd->result = DID_NO_CONNECT << 16
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| COMMAND_COMPLETE << 8;
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break;
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case SRB_STATUS_COMMAND_TIMEOUT:
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case SRB_STATUS_TIMEOUT:
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scsicmd->result = DID_TIME_OUT << 16
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| COMMAND_COMPLETE << 8;
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break;
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case SRB_STATUS_BUSY:
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scsicmd->result = DID_BUS_BUSY << 16
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| COMMAND_COMPLETE << 8;
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break;
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case SRB_STATUS_BUS_RESET:
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scsicmd->result = DID_RESET << 16
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| COMMAND_COMPLETE << 8;
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break;
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case SRB_STATUS_MESSAGE_REJECTED:
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scsicmd->result = DID_ERROR << 16
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| MESSAGE_REJECT << 8;
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break;
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case SRB_STATUS_REQUEST_FLUSHED:
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case SRB_STATUS_ERROR:
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case SRB_STATUS_INVALID_REQUEST:
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case SRB_STATUS_REQUEST_SENSE_FAILED:
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case SRB_STATUS_NO_HBA:
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case SRB_STATUS_UNEXPECTED_BUS_FREE:
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case SRB_STATUS_PHASE_SEQUENCE_FAILURE:
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case SRB_STATUS_BAD_SRB_BLOCK_LENGTH:
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case SRB_STATUS_DELAYED_RETRY:
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case SRB_STATUS_BAD_FUNCTION:
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case SRB_STATUS_NOT_STARTED:
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case SRB_STATUS_NOT_IN_USE:
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case SRB_STATUS_FORCE_ABORT:
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case SRB_STATUS_DOMAIN_VALIDATION_FAIL:
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default:
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#ifdef AAC_DETAILED_STATUS_INFO
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printk(KERN_INFO "aacraid: SRB ERROR(%u) %s scsi cmd 0x%x - scsi status 0x%x\n",
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le32_to_cpu(srbreply->srb_status) & 0x3F,
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aac_get_status_string(
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le32_to_cpu(srbreply->srb_status) & 0x3F),
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scsicmd->cmnd[0],
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le32_to_cpu(srbreply->scsi_status));
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#endif
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if ((scsicmd->cmnd[0] == ATA_12)
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|| (scsicmd->cmnd[0] == ATA_16)) {
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if (scsicmd->cmnd[2] & (0x01 << 5)) {
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scsicmd->result = DID_OK << 16
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| COMMAND_COMPLETE << 8;
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break;
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} else {
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scsicmd->result = DID_ERROR << 16
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| COMMAND_COMPLETE << 8;
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break;
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}
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} else {
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} else {
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scsicmd->result = DID_ERROR << 16
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scsicmd->result = DID_ERROR << 16
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| COMMAND_COMPLETE << 8;
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| COMMAND_COMPLETE << 8;
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break;
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break;
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}
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}
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} else {
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scsicmd->result = DID_ERROR << 16
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| COMMAND_COMPLETE << 8;
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break;
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}
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}
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}
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if (le32_to_cpu(srbreply->scsi_status)
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if (le32_to_cpu(srbreply->scsi_status) == SAM_STAT_CHECK_CONDITION) {
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== SAM_STAT_CHECK_CONDITION) {
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int len;
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int len;
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scsicmd->result |= SAM_STAT_CHECK_CONDITION;
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len = min_t(u32, le32_to_cpu(srbreply->sense_data_size),
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scsicmd->result |= SAM_STAT_CHECK_CONDITION;
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SCSI_SENSE_BUFFERSIZE);
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len = min_t(u32, le32_to_cpu(srbreply->sense_data_size),
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SCSI_SENSE_BUFFERSIZE);
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#ifdef AAC_DETAILED_STATUS_INFO
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#ifdef AAC_DETAILED_STATUS_INFO
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printk(KERN_WARNING "aac_srb_callback: check condition, status = %d len=%d\n",
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printk(KERN_WARNING "aac_srb_callback: check condition, status = %d len=%d\n",
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le32_to_cpu(srbreply->status), len);
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le32_to_cpu(srbreply->status), len);
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#endif
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#endif
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memcpy(scsicmd->sense_buffer, srbreply->sense_data, len);
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memcpy(scsicmd->sense_buffer,
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srbreply->sense_data, len);
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}
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}
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}
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/*
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/*
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* OR in the scsi status (already shifted up a bit)
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* OR in the scsi status (already shifted up a bit)
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