libcxgb,iw_cxgb4,cxgbit: add cxgb_mk_abort_req()

Add cxgb_mk_abort_req() to remove duplicate code
to form CPL_ABORT_REQ hardware command.
Signed-off-by: Varun Prakash <varun@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/infiniband/hw/cxgb4/cm.c

@@ -652,21 +652,16 @@ static int send_halfclose(struct c4iw_ep *ep)
 
 static int send_abort(struct c4iw_ep *ep)
 {
-	struct cpl_abort_req *req;
-	int wrlen = roundup(sizeof *req, 16);
+	u32 wrlen = roundup(sizeof(struct cpl_abort_req), 16);
 	struct sk_buff *req_skb = skb_dequeue(&ep->com.ep_skb_list);
 
 	PDBG("%s ep %p tid %u\n", __func__, ep, ep->hwtid);
 	if (WARN_ON(!req_skb))
 		return -ENOMEM;
 
-	set_wr_txq(req_skb, CPL_PRIORITY_DATA, ep->txq_idx);
-	t4_set_arp_err_handler(req_skb, ep, abort_arp_failure);
-	req = (struct cpl_abort_req *)skb_put(req_skb, wrlen);
-	memset(req, 0, wrlen);
-	INIT_TP_WR(req, ep->hwtid);
-	OPCODE_TID(req) = cpu_to_be32(MK_OPCODE_TID(CPL_ABORT_REQ, ep->hwtid));
-	req->cmd = CPL_ABORT_SEND_RST;
+	cxgb_mk_abort_req(req_skb, wrlen, ep->hwtid, ep->txq_idx,
+			  ep, abort_arp_failure);
+
 	return c4iw_l2t_send(&ep->com.dev->rdev, req_skb, ep->l2t);
 }
 

drivers/net/ethernet/chelsio/libcxgb/libcxgb_cm.h

@@ -112,4 +112,20 @@ cxgb_mk_close_con_req(struct sk_buff *skb, u32 len, u32 tid, u16 chan,
 	set_wr_txq(skb, CPL_PRIORITY_DATA, chan);
 	t4_set_arp_err_handler(skb, handle, handler);
 }
+
+static inline void
+cxgb_mk_abort_req(struct sk_buff *skb, u32 len, u32 tid, u16 chan,
+		  void *handle, arp_err_handler_t handler)
+{
+	struct cpl_abort_req *req;
+
+	req = (struct cpl_abort_req *)__skb_put(skb, len);
+	memset(req, 0, len);
+
+	INIT_TP_WR(req, tid);
+	OPCODE_TID(req) = cpu_to_be32(MK_OPCODE_TID(CPL_ABORT_REQ, tid));
+	req->cmd = CPL_ABORT_SEND_RST;
+	set_wr_txq(skb, CPL_PRIORITY_DATA, chan);
+	t4_set_arp_err_handler(skb, handle, handler);
+}
 #endif

drivers/target/iscsi/cxgbit/cxgbit_cm.c

@@ -647,9 +647,8 @@ static void cxgbit_abort_arp_failure(void *handle, struct sk_buff *skb)
 
 static int cxgbit_send_abort_req(struct cxgbit_sock *csk)
 {
-	struct cpl_abort_req *req;
-	unsigned int len = roundup(sizeof(*req), 16);
 	struct sk_buff *skb;
+	u32 len = roundup(sizeof(struct cpl_abort_req), 16);
 
 	pr_debug("%s: csk %p tid %u; state %d\n",
 		 __func__, csk, csk->tid, csk->com.state);
@@ -660,15 +659,9 @@ static int cxgbit_send_abort_req(struct cxgbit_sock *csk)
 		cxgbit_send_tx_flowc_wr(csk);
 
 	skb = __skb_dequeue(&csk->skbq);
-	req = (struct cpl_abort_req *)__skb_put(skb, len);
-	memset(req, 0, len);
+	cxgb_mk_abort_req(skb, len, csk->tid, csk->txq_idx,
+			  csk->com.cdev, cxgbit_abort_arp_failure);
 
-	set_wr_txq(skb, CPL_PRIORITY_DATA, csk->txq_idx);
-	t4_set_arp_err_handler(skb, csk->com.cdev, cxgbit_abort_arp_failure);
-	INIT_TP_WR(req, csk->tid);
-	OPCODE_TID(req) = cpu_to_be32(MK_OPCODE_TID(CPL_ABORT_REQ,
-						    csk->tid));
-	req->cmd = CPL_ABORT_SEND_RST;
 	return cxgbit_l2t_send(csk->com.cdev, skb, csk->l2t);
 }