net/ngbe: support jumbo frame

[dpdk.git] / drivers / net / cxgbe / smt.c

diff --git a/drivers/net/cxgbe/smt.c b/drivers/net/cxgbe/smt.c
index e8f3867..810c757 100644 (file)
--- a/drivers/net/cxgbe/smt.c
+++ b/drivers/net/cxgbe/smt.c
@@ -119,7 +119,7 @@ static struct smt_entry *find_or_alloc_smte(struct smt_data *s, u8 *smac)
        struct smt_entry *e, *end, *first_free = NULL;
 
        for (e = &s->smtab[0], end = &s->smtab[s->smt_size]; e != end; ++e) {
-               if (!rte_atomic32_read(&e->refcnt)) {
+               if (__atomic_load_n(&e->refcnt, __ATOMIC_RELAXED) == 0) {
                        if (!first_free)
                                first_free = e;
                } else {
@@ -156,7 +156,7 @@ static struct smt_entry *t4_smt_alloc_switching(struct rte_eth_dev *dev,
        e = find_or_alloc_smte(s, smac);
        if (e) {
                t4_os_lock(&e->lock);
-               if (!rte_atomic32_read(&e->refcnt)) {
+               if (__atomic_load_n(&e->refcnt, __ATOMIC_RELAXED) == 0) {
                        e->pfvf = pfvf;
                        rte_memcpy(e->src_mac, smac, RTE_ETHER_ADDR_LEN);
                        ret = write_smt_entry(dev, e);
@@ -168,9 +168,9 @@ static struct smt_entry *t4_smt_alloc_switching(struct rte_eth_dev *dev,
                                goto out_write_unlock;
                        }
                        e->state = SMT_STATE_SWITCHING;
-                       rte_atomic32_set(&e->refcnt, 1);
+                       __atomic_store_n(&e->refcnt, 1, __ATOMIC_RELAXED);
                } else {
-                       rte_atomic32_inc(&e->refcnt);
+                       __atomic_add_fetch(&e->refcnt, 1, __ATOMIC_RELAXED);
                }
                t4_os_unlock(&e->lock);
        }
@@ -193,6 +193,12 @@ struct smt_entry *cxgbe_smt_alloc_switching(struct rte_eth_dev *dev, u8 *smac)
        return t4_smt_alloc_switching(dev, 0x0, smac);
 }
 
+void cxgbe_smt_release(struct smt_entry *e)
+{
+       if (__atomic_load_n(&e->refcnt, __ATOMIC_RELAXED) != 0)
+               __atomic_sub_fetch(&e->refcnt, 1, __ATOMIC_RELAXED);
+}
+
 /**
  * Initialize Source MAC Table
  */
@@ -215,7 +221,7 @@ struct smt_data *t4_init_smt(u32 smt_start_idx, u32 smt_size)
                s->smtab[i].state = SMT_STATE_UNUSED;
                memset(&s->smtab[i].src_mac, 0, RTE_ETHER_ADDR_LEN);
                t4_os_lock_init(&s->smtab[i].lock);
-               rte_atomic32_set(&s->smtab[i].refcnt, 0);
+               s->smtab[i].refcnt = 0;
        }
        return s;
 }