doc: add patch dependency syntax to contributing guide

[dpdk.git] / lib / librte_ipsec / ipsec_sqn.h

diff --git a/lib/librte_ipsec/ipsec_sqn.h b/lib/librte_ipsec/ipsec_sqn.h
index a3ae7e2..2636cb1 100644 (file)
--- a/lib/librte_ipsec/ipsec_sqn.h
+++ b/lib/librte_ipsec/ipsec_sqn.h
@@ -56,21 +56,6 @@ sqn_low16(rte_be64_t sqn)
 #endif
 }
 
-/*
- * for given size, calculate required number of buckets.
- */
-static uint32_t
-replay_num_bucket(uint32_t wsz)
-{
-       uint32_t nb;
-
-       nb = rte_align32pow2(RTE_ALIGN_MUL_CEIL(wsz, WINDOW_BUCKET_SIZE) /
-               WINDOW_BUCKET_SIZE);
-       nb = RTE_MAX(nb, (uint32_t)WINDOW_BUCKET_MIN);
-
-       return nb;
-}
-
 /*
  * According to RFC4303 A2.1, determine the high-order bit of sequence number.
  * use 32bit arithmetic inside, return uint64_t.
@@ -143,10 +128,10 @@ esn_outb_update_sqn(struct rte_ipsec_sa *sa, uint32_t *num)
 
        n = *num;
        if (SQN_ATOMIC(sa))
-               sqn = (uint64_t)rte_atomic64_add_return(&sa->sqn.outb.atom, n);
+               sqn = __atomic_add_fetch(&sa->sqn.outb, n, __ATOMIC_RELAXED);
        else {
-               sqn = sa->sqn.outb.raw + n;
-               sa->sqn.outb.raw = sqn;
+               sqn = sa->sqn.outb + n;
+               sa->sqn.outb = sqn;
        }
 
        /* overflow */
@@ -167,10 +152,6 @@ esn_inb_update_sqn(struct replay_sqn *rsn, const struct rte_ipsec_sa *sa,
 {
        uint32_t bit, bucket, last_bucket, new_bucket, diff, i;
 
-       /* replay not enabled */
-       if (sa->replay.win_sz == 0)
-               return 0;
-
        /* handle ESN */
        if (IS_ESN(sa))
                sqn = reconstruct_esn(rsn->sqn, sqn, sa->replay.win_sz);
@@ -222,21 +203,6 @@ esn_inb_update_sqn(struct replay_sqn *rsn, const struct rte_ipsec_sa *sa,
  * between writer and readers.
  */
 
-/**
- * Based on number of buckets calculated required size for the
- * structure that holds replay window and sequence number (RSN) information.
- */
-static size_t
-rsn_size(uint32_t nb_bucket)
-{
-       size_t sz;
-       struct replay_sqn *rsn;
-
-       sz = sizeof(*rsn) + nb_bucket * sizeof(rsn->window[0]);
-       sz = RTE_ALIGN_CEIL(sz, RTE_CACHE_LINE_SIZE);
-       return sz;
-}
-
 /**
  * Copy replay window and SQN.
  */