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libcxgb,iw_cxgb4,cxgbit: add cxgb_mk_rx_data_ack()

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Add cxgb_mk_rx_data_ack() to remove duplicate
code to form CPL_RX_DATA_ACK hardware command.

Signed-off-by: Varun Prakash <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
This commit is contained in:
Varun Prakash 2016-09-13 21:24:06 +05:30 • committed by David S. Miller
commit 6e3b6fc201
3 changed files with 29 additions and 21 deletions
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16
drivers/target/iscsi/cxgbit/cxgbit_cm.c
View file

@ -994,22 +994,18 @@ static void cxgbit_send_rx_credits(struct cxgbit_sock *csk, struct sk_buff *skb)
int cxgbit_rx_data_ack(struct cxgbit_sock *csk)
{
struct sk_buff *skb;
struct cpl_rx_data_ack *req;
unsigned int len = roundup(sizeof(*req), 16);
u32 len = roundup(sizeof(struct cpl_rx_data_ack), 16);
u32 credit_dack;
skb = alloc_skb(len, GFP_KERNEL);
if (!skb)
return -1;
req = (struct cpl_rx_data_ack *)__skb_put(skb, len);
memset(req, 0, len);
credit_dack = RX_DACK_CHANGE_F | RX_DACK_MODE_V(1) |
RX_CREDITS_V(csk->rx_credits);
set_wr_txq(skb, CPL_PRIORITY_ACK, csk->ctrlq_idx);
INIT_TP_WR(req, csk->tid);
OPCODE_TID(req) = cpu_to_be32(MK_OPCODE_TID(CPL_RX_DATA_ACK,
csk->tid));
req->credit_dack = cpu_to_be32(RX_DACK_CHANGE_F | RX_DACK_MODE_V(1) |
RX_CREDITS_V(csk->rx_credits));
cxgb_mk_rx_data_ack(skb, len, csk->tid, csk->ctrlq_idx,
credit_dack);
csk->rx_credits = 0;