dmadev: add device iterator

[dpdk.git] / drivers / crypto / octeontx2 / otx2_ipsec_anti_replay.h

diff --git a/drivers/crypto/octeontx2/otx2_ipsec_anti_replay.h b/drivers/crypto/octeontx2/otx2_ipsec_anti_replay.h
index 858ce5b..089a3d0 100644 (file)
--- a/drivers/crypto/octeontx2/otx2_ipsec_anti_replay.h
+++ b/drivers/crypto/octeontx2/otx2_ipsec_anti_replay.h
@@ -16,11 +16,10 @@
 #define IPSEC_ANTI_REPLAY_FAILED       (-1)
 
 static inline int
-anti_replay_check(uint64_t seq, struct otx2_ipsec_fp_in_sa *sa)
+anti_replay_check(struct otx2_ipsec_replay *replay, uint64_t seq,
+                       uint64_t winsz)
 {
-       struct otx2_ipsec_replay *replay = sa->replay;
        uint64_t *window = &replay->window[0];
-       uint64_t winsz = sa->replay_win_sz;
        uint64_t ex_winsz = winsz + WORD_SIZE;
        uint64_t winwords = ex_winsz >> WORD_SHIFT;
        uint64_t base = replay->base;
@@ -166,9 +165,10 @@ winupdate:
        return 0;
 }
 
-static int
-cpt_ipsec_antireplay_check(struct otx2_ipsec_fp_in_sa *sa, char *data)
+static inline int
+cpt_ipsec_ip_antireplay_check(struct otx2_ipsec_fp_in_sa *sa, void *l3_ptr)
 {
+       struct otx2_ipsec_fp_res_hdr *hdr = l3_ptr;
        uint64_t seq_in_sa;
        uint32_t seqh = 0;
        uint32_t seql;
@@ -177,14 +177,12 @@ cpt_ipsec_antireplay_check(struct otx2_ipsec_fp_in_sa *sa, char *data)
        int ret;
 
        esn = sa->ctl.esn_en;
-       seql = rte_be_to_cpu_32(*((uint32_t *)(data +
-                       OTX2_IPSEC_SEQNO_LO_INDEX)));
+       seql = rte_be_to_cpu_32(hdr->seq_no_lo);
 
        if (!esn)
                seq = (uint64_t)seql;
        else {
-               seqh = rte_be_to_cpu_32(*((uint32_t *)(data +
-                               OTX2_IPSEC_SEQNO_HI_INDEX)));
+               seqh = rte_be_to_cpu_32(hdr->seq_no_hi);
                seq = ((uint64_t)seqh << 32) | seql;
        }
 
@@ -192,7 +190,7 @@ cpt_ipsec_antireplay_check(struct otx2_ipsec_fp_in_sa *sa, char *data)
                return IPSEC_ANTI_REPLAY_FAILED;
 
        rte_spinlock_lock(&sa->replay->lock);
-       ret = anti_replay_check(seq, sa);
+       ret = anti_replay_check(sa->replay, seq, sa->replay_win_sz);
        if (esn && (ret == 0)) {
                seq_in_sa = ((uint64_t)rte_be_to_cpu_32(sa->esn_hi) << 32) |
                                rte_be_to_cpu_32(sa->esn_low);
@@ -205,4 +203,25 @@ cpt_ipsec_antireplay_check(struct otx2_ipsec_fp_in_sa *sa, char *data)
 
        return ret;
 }
+
+static inline uint32_t
+anti_replay_get_seqh(uint32_t winsz, uint32_t seql,
+                       uint32_t esn_hi, uint32_t esn_low)
+{
+       uint32_t win_low = esn_low - winsz + 1;
+
+       if (esn_low > winsz - 1) {
+               /* Window is in one sequence number subspace */
+               if (seql > win_low)
+                       return esn_hi;
+               else
+                       return esn_hi + 1;
+       } else {
+               /* Window is split across two sequence number subspaces */
+               if (seql > win_low)
+                       return esn_hi - 1;
+               else
+                       return esn_hi;
+       }
+}
 #endif /* __OTX2_IPSEC_ANTI_REPLAY_H__ */