if_epair: build fix

66acf7685b failed to build on riscv (and mips). This is because the
atomic_testandset_int() (and friends) functions do not exist there.
Happily those platforms do have the long variant, so switch to that.

PR:		262571
MFC after:	3 days
Approved by:    re (gjb)

(cherry picked from commit 0bf7acd6b7047537a38e2de391a461e4e8956630)

diff --git a/sys/net/if_epair.c b/sys/net/if_epair.c
index 16e7f602edeeee998839652b71636823f9662f57..23f7f6da6846e7e0c5939133aa710d625e3f06e9 100644 (file)
--- a/sys/net/if_epair.c
+++ b/sys/net/if_epair.c
@@ -106,7 +106,7 @@ struct epair_queue {
        int                      id;
        struct buf_ring         *rxring[2];
        volatile int             ridx;          /* 0 || 1 */
-       volatile int             state;         /* taskqueue coordination */
+       volatile long            state;         /* taskqueue coordination */
        struct task              tx_task;
        struct epair_softc      *sc;
 };
@@ -175,8 +175,8 @@ epair_tx_start_deferred(void *arg, int pending)
        } while (!atomic_fcmpset_int(&q->ridx, &ridx, nidx));
        epair_if_input(sc, q, ridx);
 
-       atomic_clear_int(&q->state, (1 << BIT_QUEUE_TASK));
-       if (atomic_testandclear_int(&q->state, BIT_MBUF_QUEUED))
+       atomic_clear_long(&q->state, (1 << BIT_QUEUE_TASK));
+       if (atomic_testandclear_long(&q->state, BIT_MBUF_QUEUED))
                taskqueue_enqueue(epair_tasks.tq[q->id], &q->tx_task);
 
        if_rele(sc->ifp);
@@ -238,7 +238,7 @@ epair_menq(struct mbuf *m, struct epair_softc *osc)
 #endif
        q = &osc->queues[bucket];
 
-       atomic_set_int(&q->state, (1 << BIT_MBUF_QUEUED));
+       atomic_set_long(&q->state, (1 << BIT_MBUF_QUEUED));
        ridx = atomic_load_int(&q->ridx);
        ret = buf_ring_enqueue(q->rxring[ridx], m);
        if (ret != 0) {
@@ -260,7 +260,7 @@ epair_menq(struct mbuf *m, struct epair_softc *osc)
        /* Someone else received the packet. */
        if_inc_counter(oifp, IFCOUNTER_IPACKETS, 1);
 
-       if (!atomic_testandset_int(&q->state, BIT_QUEUE_TASK))
+       if (!atomic_testandset_long(&q->state, BIT_QUEUE_TASK))
                taskqueue_enqueue(epair_tasks.tq[bucket], &q->tx_task);
 
        return (0);