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isci: Explicitly decode remote node ready and suspended states 

The remote node context should only signal a device reset condition
in a suspended state.

Signed-off-by: Jeff Skirvin <jeffrey.d.skirvin@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
This commit is contained in:
Jeff Skirvin 2011-06-20 14:09:22 -07:00 committed by Dan Williams
parent 980d3aeb38
commit fd53660120
1 changed files with 13 additions and 2 deletions
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15
drivers/scsi/isci/remote_node_context.c
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@ -603,12 +603,23 @@ enum sci_status scic_sds_remote_node_context_start_io(struct scic_sds_remote_nod
enum scis_sds_remote_node_context_states state;
state = sci_rnc->sm.current_state_id;
if (state != SCI_RNC_READY) {
switch (state) {
case SCI_RNC_READY:
return SCI_SUCCESS;
case SCI_RNC_TX_SUSPENDED:
case SCI_RNC_TX_RX_SUSPENDED:
case SCI_RNC_AWAIT_SUSPENSION:
dev_warn(scirdev_to_dev(rnc_to_dev(sci_rnc)),
"%s: invalid state %d\n", __func__, state);
return SCI_FAILURE_REMOTE_DEVICE_RESET_REQUIRED;
default:
break;
}
return SCI_SUCCESS;
dev_dbg(scirdev_to_dev(rnc_to_dev(sci_rnc)),
"%s: requested to start IO while still resuming, %d\n",
__func__, state);
return SCI_FAILURE_INVALID_STATE;
}
enum sci_status scic_sds_remote_node_context_start_task(struct scic_sds_remote_node_context *sci_rnc,