static int
sdp_handle_send_comp(struct sdp_sock *ssk, struct ib_wc *wc)
{
struct mbuf *mb = NULL;
struct sdp_bsdh *h;
if (unlikely(wc->status)) {
if (wc->status != IB_WC_WR_FLUSH_ERR) {
sdp_prf(ssk->socket, mb, "Send completion with error. "
"Status %d", wc->status);
sdp_dbg_data(ssk->socket, "Send completion with error. "
"Status %d\n", wc->status);
sdp_notify(ssk, ECONNRESET);
}
}
mb = sdp_send_completion(ssk, wc->wr_id);
if (unlikely(!mb))
return -1;
h = mtod(mb, struct sdp_bsdh *);
sdp_prf1(ssk->socket, mb, "tx completion. mseq:%d", ntohl(h->mseq));
sdp_dbg(ssk->socket, "tx completion. %p %d mseq:%d",
mb, mb->m_pkthdr.len, ntohl(h->mseq));
m_freem(mb);
return 0;
}
static void sdp_tx_ring_purge(struct sdp_sock *ssk)
{
while (ring_posted(ssk->tx_ring)) {
struct sk_buff *skb;
skb = sdp_send_completion(ssk, ring_tail(ssk->tx_ring));
if (!skb)
break;
sk_wmem_free_skb(sk_ssk(ssk), skb);
}
}
static
void sdp_tx_ring_purge(struct sdp_sock *ssk)
{
while (tx_ring_posted(ssk)) {
struct mbuf *mb;
mb = sdp_send_completion(ssk, ring_tail(ssk->tx_ring));
if (!mb)
break;
m_freem(mb);
}
}
static inline void sdp_process_tx_wc(struct sdp_sock *ssk, struct ib_wc *wc)
{
struct sock *sk = sk_ssk(ssk);
if (likely(wc->wr_id & SDP_OP_SEND)) {
struct sk_buff *skb;
skb = sdp_send_completion(ssk, wc->wr_id);
if (likely(skb))
sk_wmem_free_skb(sk, skb);
} else if (wc->wr_id & SDP_OP_RDMA) {
if (ssk->tx_ring.rdma_inflight &&
ssk->tx_ring.rdma_inflight->busy) {
/* Only last RDMA read WR is signalled. Order is guaranteed -
* therefore if Last RDMA read WR is completed - all other
* have, too */
ssk->tx_ring.rdma_inflight->busy = 0;
} else {
sdp_warn(sk, "Unexpected RDMA read completion, "
"probably was canceled already\n");
}
wake_up(sdp_sk_sleep(sk));
} else {
/* Keepalive probe sent cleanup */
sdp_cnt(sdp_keepalive_probes_sent);
}
if (likely(!wc->status) || wc->status == IB_WC_WR_FLUSH_ERR)
return;
sdp_warn(sk, "Send completion with error. wr_id 0x%llx Status %d\n",
wc->wr_id, wc->status);
sdp_set_error(sk, -ECONNRESET);
}