From e7549b926dd3ceec048f5689df90d4ec970c9419 Mon Sep 17 00:00:00 2001
From: Wolfgang Wiedmeyer <wolfgit@wiedmeyer.de>
Date: Fri, 23 Oct 2015 13:30:20 +0200
Subject: more driver stuff from 3.2.72

---
 drivers/scsi/qla4xxx/ql4_iocb.c | 68 +++++++++++++++++++++++++++++++++++++++--
 1 file changed, 66 insertions(+), 2 deletions(-)

(limited to 'drivers/scsi/qla4xxx/ql4_iocb.c')

diff --git a/drivers/scsi/qla4xxx/ql4_iocb.c b/drivers/scsi/qla4xxx/ql4_iocb.c
index 75fcd82..4106693 100644
--- a/drivers/scsi/qla4xxx/ql4_iocb.c
+++ b/drivers/scsi/qla4xxx/ql4_iocb.c
@@ -313,10 +313,8 @@ int qla4xxx_send_command_to_isp(struct scsi_qla_host *ha, struct srb * srb)
 	cmd_entry->hdr.entryType = ET_COMMAND;
 	cmd_entry->handle = cpu_to_le32(index);
 	cmd_entry->target = cpu_to_le16(ddb_entry->fw_ddb_index);
-	cmd_entry->connection_id = cpu_to_le16(ddb_entry->connection_id);
 
 	int_to_scsilun(cmd->device->lun, &cmd_entry->lun);
-	cmd_entry->cmdSeqNum = cpu_to_le32(ddb_entry->CmdSn);
 	cmd_entry->ttlByteCnt = cpu_to_le32(scsi_bufflen(cmd));
 	memcpy(cmd_entry->cdb, cmd->cmnd, cmd->cmd_len);
 	cmd_entry->dataSegCnt = cpu_to_le16(tot_dsds);
@@ -381,3 +379,69 @@ queuing_error:
 	return QLA_ERROR;
 }
 
+int qla4xxx_send_passthru0(struct iscsi_task *task)
+{
+	struct passthru0 *passthru_iocb;
+	struct iscsi_session *sess = task->conn->session;
+	struct ddb_entry *ddb_entry = sess->dd_data;
+	struct scsi_qla_host *ha = ddb_entry->ha;
+	struct ql4_task_data *task_data = task->dd_data;
+	uint16_t ctrl_flags = 0;
+	unsigned long flags;
+	int ret = QLA_ERROR;
+
+	spin_lock_irqsave(&ha->hardware_lock, flags);
+	task_data->iocb_req_cnt = 1;
+	/* Put the IOCB on the request queue */
+	if (!qla4xxx_space_in_req_ring(ha, task_data->iocb_req_cnt))
+		goto queuing_error;
+
+	passthru_iocb = (struct passthru0 *) ha->request_ptr;
+
+	memset(passthru_iocb, 0, sizeof(struct passthru0));
+	passthru_iocb->hdr.entryType = ET_PASSTHRU0;
+	passthru_iocb->hdr.systemDefined = SD_ISCSI_PDU;
+	passthru_iocb->hdr.entryCount = task_data->iocb_req_cnt;
+	passthru_iocb->handle = task->itt;
+	passthru_iocb->target = cpu_to_le16(ddb_entry->fw_ddb_index);
+	passthru_iocb->timeout = cpu_to_le16(PT_DEFAULT_TIMEOUT);
+
+	/* Setup the out & in DSDs */
+	if (task_data->req_len) {
+		memcpy((uint8_t *)task_data->req_buffer +
+		       sizeof(struct iscsi_hdr), task->data, task->data_count);
+		ctrl_flags |= PT_FLAG_SEND_BUFFER;
+		passthru_iocb->out_dsd.base.addrLow =
+					cpu_to_le32(LSDW(task_data->req_dma));
+		passthru_iocb->out_dsd.base.addrHigh =
+					cpu_to_le32(MSDW(task_data->req_dma));
+		passthru_iocb->out_dsd.count =
+					cpu_to_le32(task->data_count +
+						    sizeof(struct iscsi_hdr));
+	}
+	if (task_data->resp_len) {
+		passthru_iocb->in_dsd.base.addrLow =
+					cpu_to_le32(LSDW(task_data->resp_dma));
+		passthru_iocb->in_dsd.base.addrHigh =
+					cpu_to_le32(MSDW(task_data->resp_dma));
+		passthru_iocb->in_dsd.count =
+			cpu_to_le32(task_data->resp_len);
+	}
+
+	ctrl_flags |= (PT_FLAG_ISCSI_PDU | PT_FLAG_WAIT_4_RESPONSE);
+	passthru_iocb->control_flags = cpu_to_le16(ctrl_flags);
+
+	/* Update the request pointer */
+	qla4xxx_advance_req_ring_ptr(ha);
+	wmb();
+
+	/* Track IOCB used */
+	ha->iocb_cnt += task_data->iocb_req_cnt;
+	ha->req_q_count -= task_data->iocb_req_cnt;
+	ha->isp_ops->queue_iocb(ha);
+	ret = QLA_SUCCESS;
+
+queuing_error:
+	spin_unlock_irqrestore(&ha->hardware_lock, flags);
+	return ret;
+}
-- 
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