@@ -102,7 +102,7 @@ qla2x00_mailbox_command(scsi_qla_host_t *vha, mbx_cmd_t *mcp)
int rval, i;
unsigned long flags = 0;
device_reg_t *reg;
- uint8_t abort_active;
+ uint8_t abort_active, eeh_delay;
uint8_t io_lock_on;
uint16_t command = 0;
uint16_t *iptr;
@@ -136,7 +136,7 @@ qla2x00_mailbox_command(scsi_qla_host_t *vha, mbx_cmd_t *mcp)
"PCI error, exiting.\n");
return QLA_FUNCTION_TIMEOUT;
}
-
+ eeh_delay = 0;
reg = ha->iobase;
io_lock_on = base_vha->flags.init_done;
@@ -159,11 +159,10 @@ qla2x00_mailbox_command(scsi_qla_host_t *vha, mbx_cmd_t *mcp)
}
/* check if ISP abort is active and return cmd with timeout */
- if ((test_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags) ||
- test_bit(ISP_ABORT_RETRY, &base_vha->dpc_flags) ||
- test_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags) ||
- ha->flags.eeh_busy) &&
- !is_rom_cmd(mcp->mb[0])) {
+ if (((test_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags) ||
+ test_bit(ISP_ABORT_RETRY, &base_vha->dpc_flags) ||
+ test_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags)) &&
+ !is_rom_cmd(mcp->mb[0])) || ha->flags.eeh_busy) {
ql_log(ql_log_info, vha, 0x1005,
"Cmd 0x%x aborted with timeout since ISP Abort is pending\n",
mcp->mb[0]);
@@ -186,7 +185,11 @@ qla2x00_mailbox_command(scsi_qla_host_t *vha, mbx_cmd_t *mcp)
return QLA_FUNCTION_TIMEOUT;
}
atomic_dec(&ha->num_pend_mbx_stage1);
- if (ha->flags.purge_mbox || chip_reset != ha->chip_reset) {
+ if (ha->flags.purge_mbox || chip_reset != ha->chip_reset ||
+ ha->flags.eeh_busy) {
+ ql_log(ql_log_warn, vha, 0xd035,
+ "Error detected: purge[%d] eeh[%d] cmd=0x%x, Exiting.\n",
+ ha->flags.purge_mbox, ha->flags.eeh_busy, mcp->mb[0]);
rval = QLA_ABORTED;
goto premature_exit;
}
@@ -266,6 +269,8 @@ qla2x00_mailbox_command(scsi_qla_host_t *vha, mbx_cmd_t *mcp)
if (!wait_for_completion_timeout(&ha->mbx_intr_comp,
mcp->tov * HZ)) {
if (chip_reset != ha->chip_reset) {
+ eeh_delay = ha->flags.eeh_busy ? 1 : 0;
+
spin_lock_irqsave(&ha->hardware_lock, flags);
ha->flags.mbox_busy = 0;
spin_unlock_irqrestore(&ha->hardware_lock,
@@ -283,6 +288,8 @@ qla2x00_mailbox_command(scsi_qla_host_t *vha, mbx_cmd_t *mcp)
} else if (ha->flags.purge_mbox ||
chip_reset != ha->chip_reset) {
+ eeh_delay = ha->flags.eeh_busy ? 1 : 0;
+
spin_lock_irqsave(&ha->hardware_lock, flags);
ha->flags.mbox_busy = 0;
spin_unlock_irqrestore(&ha->hardware_lock, flags);
@@ -324,6 +331,8 @@ qla2x00_mailbox_command(scsi_qla_host_t *vha, mbx_cmd_t *mcp)
while (!ha->flags.mbox_int) {
if (ha->flags.purge_mbox ||
chip_reset != ha->chip_reset) {
+ eeh_delay = ha->flags.eeh_busy ? 1 : 0;
+
spin_lock_irqsave(&ha->hardware_lock, flags);
ha->flags.mbox_busy = 0;
spin_unlock_irqrestore(&ha->hardware_lock,
@@ -532,7 +541,8 @@ qla2x00_mailbox_command(scsi_qla_host_t *vha, mbx_cmd_t *mcp)
clear_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
/* Allow next mbx cmd to come in. */
complete(&ha->mbx_cmd_comp);
- if (ha->isp_ops->abort_isp(vha)) {
+ if (ha->isp_ops->abort_isp(vha) &&
+ !ha->flags.eeh_busy) {
/* Failed. retry later. */
set_bit(ISP_ABORT_NEEDED,
&vha->dpc_flags);
@@ -585,6 +595,17 @@ qla2x00_mailbox_command(scsi_qla_host_t *vha, mbx_cmd_t *mcp)
ql_dbg(ql_dbg_mbx, base_vha, 0x1021, "Done %s.\n", __func__);
}
+ i = 500;
+ while (i && eeh_delay && (ha->pci_error_state < QLA_PCI_SLOT_RESET)) {
+ /*
+ * The caller of this mailbox encounter pci error.
+ * Hold the thread until PCIE link reset complete to make
+ * sure caller does not unmap dma while recovery is
+ * in progress.
+ */
+ msleep(1);
+ i--;
+ }
return rval;
}