netdev - [PATCH net-next 4/5] ibmvnic: create send_query_ip

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Date:   Sun, 27 Sep 2020 20:13:29 -0500
From:   Lijun Pan <ljp@...ux.ibm.com>
To:     netdev@...r.kernel.org
Cc:     sukadev@...ux.ibm.com, drt@...ux.ibm.com,
        Lijun Pan <ljp@...ux.ibm.com>
Subject: [PATCH net-next 4/5] ibmvnic: create send_query_ip_offload

Factor send_query_ip_offload out of handle_request_cap_rsp to
pair with handle_query_ip_offload_rsp.

Signed-off-by: Lijun Pan <ljp@...ux.ibm.com>
---
 drivers/net/ethernet/ibm/ibmvnic.c | 52 +++++++++++++++++-------------
 1 file changed, 29 insertions(+), 23 deletions(-)

diff --git a/drivers/net/ethernet/ibm/ibmvnic.c b/drivers/net/ethernet/ibm/ibmvnic.c
index 1ab321e69075..c31b81cf43b6 100644
--- a/drivers/net/ethernet/ibm/ibmvnic.c
+++ b/drivers/net/ethernet/ibm/ibmvnic.c
@@ -3953,6 +3953,34 @@ static void send_query_cap(struct ibmvnic_adapter *adapter)
 	ibmvnic_send_crq(adapter, &crq);
 }
 
+static void send_query_ip_offload(struct ibmvnic_adapter *adapter)
+{
+	int buf_sz = sizeof(struct ibmvnic_query_ip_offload_buffer);
+	struct device *dev = &adapter->vdev->dev;
+	union ibmvnic_crq crq;
+
+	adapter->ip_offload_tok =
+		dma_map_single(dev,
+			       &adapter->ip_offload_buf,
+			       buf_sz,
+			       DMA_FROM_DEVICE);
+
+	if (dma_mapping_error(dev, adapter->ip_offload_tok)) {
+		if (!firmware_has_feature(FW_FEATURE_CMO))
+			dev_err(dev, "Couldn't map offload buffer\n");
+		return;
+	}
+
+	memset(&crq, 0, sizeof(crq));
+	crq.query_ip_offload.first = IBMVNIC_CRQ_CMD;
+	crq.query_ip_offload.cmd = QUERY_IP_OFFLOAD;
+	crq.query_ip_offload.len = cpu_to_be32(buf_sz);
+	crq.query_ip_offload.ioba =
+	    cpu_to_be32(adapter->ip_offload_tok);
+
+	ibmvnic_send_crq(adapter, &crq);
+}
+
 static void handle_vpd_size_rsp(union ibmvnic_crq *crq,
 				struct ibmvnic_adapter *adapter)
 {
@@ -4276,30 +4304,8 @@ static void handle_request_cap_rsp(union ibmvnic_crq *crq,
 
 	/* Done receiving requested capabilities, query IP offload support */
 	if (atomic_read(&adapter->running_cap_crqs) == 0) {
-		union ibmvnic_crq newcrq;
-		int buf_sz = sizeof(struct ibmvnic_query_ip_offload_buffer);
-		struct ibmvnic_query_ip_offload_buffer *ip_offload_buf =
-		    &adapter->ip_offload_buf;
-
 		adapter->wait_capability = false;
-		adapter->ip_offload_tok = dma_map_single(dev, ip_offload_buf,
-							 buf_sz,
-							 DMA_FROM_DEVICE);
-
-		if (dma_mapping_error(dev, adapter->ip_offload_tok)) {
-			if (!firmware_has_feature(FW_FEATURE_CMO))
-				dev_err(dev, "Couldn't map offload buffer\n");
-			return;
-		}
-
-		memset(&newcrq, 0, sizeof(newcrq));
-		newcrq.query_ip_offload.first = IBMVNIC_CRQ_CMD;
-		newcrq.query_ip_offload.cmd = QUERY_IP_OFFLOAD;
-		newcrq.query_ip_offload.len = cpu_to_be32(buf_sz);
-		newcrq.query_ip_offload.ioba =
-		    cpu_to_be32(adapter->ip_offload_tok);
-
-		ibmvnic_send_crq(adapter, &newcrq);
+		send_query_ip_offload(adapter);
 	}
 }
 
-- 
2.23.0