From: Rahul Bhansali <rbhans...@marvell.com>

Inline IPsec Rx support for cn20k

Signed-off-by: Rahul Bhansali <rbhans...@marvell.com>
---
 drivers/event/cnxk/cn20k_worker.h | 111 ++++++++++++++++++++++++++++--
 drivers/net/cnxk/cn20k_rx.h       |   5 +-
 2 files changed, 109 insertions(+), 7 deletions(-)

diff --git a/drivers/event/cnxk/cn20k_worker.h 
b/drivers/event/cnxk/cn20k_worker.h
index 2366196d9d..6ed1f78a86 100644
--- a/drivers/event/cnxk/cn20k_worker.h
+++ b/drivers/event/cnxk/cn20k_worker.h
@@ -22,9 +22,13 @@ cn20k_wqe_to_mbuf(uint64_t wqe, const uint64_t __mbuf, 
uint8_t port_id, const ui
        const uint64_t mbuf_init =
                0x100010000ULL | RTE_PKTMBUF_HEADROOM | (flags & 
NIX_RX_OFFLOAD_TSTAMP_F ? 8 : 0);
        struct rte_mbuf *mbuf = (struct rte_mbuf *)__mbuf;
+       uint64_t buf_sz = 0;
+
+       if (flags & NIX_RX_REAS_F)
+               buf_sz = cnxk_nix_inl_bufsize_get(port_id, lookup_mem);
 
        cn20k_nix_cqe_to_mbuf((struct nix_cqe_hdr_s *)wqe, tag, (struct 
rte_mbuf *)mbuf, lookup_mem,
-                             mbuf_init | ((uint64_t)port_id) << 48, cpth, 
sa_base, 0, flags);
+                             mbuf_init | ((uint64_t)port_id) << 48, cpth, 
sa_base, buf_sz, flags);
 }
 
 static void
@@ -47,14 +51,20 @@ cn20k_process_vwqe(uintptr_t vwqe, uint16_t port_id, const 
uint32_t flags, struc
 {
        uint64_t mbuf_init = 0x100010000ULL | RTE_PKTMBUF_HEADROOM;
        struct cnxk_timesync_info *tstamp = ws->tstamp[port_id];
+       uint8_t m_sz = sizeof(struct rte_mbuf);
        void *lookup_mem = ws->lookup_mem;
        uintptr_t lbase = ws->lmt_base;
+       uint64_t meta_aura = 0, laddr;
        struct rte_event_vector *vec;
        uint16_t nb_mbufs, non_vec;
+       struct rte_mempool *mp;
+       uint16_t lmt_id, d_off;
        struct rte_mbuf **wqe;
        struct rte_mbuf *mbuf;
        uint64_t sa_base = 0;
+       uint64_t buf_sz = 0;
        uintptr_t cpth = 0;
+       uint8_t loff = 0;
        int i;
 
        mbuf_init |= ((uint64_t)port_id) << 48;
@@ -69,12 +79,39 @@ cn20k_process_vwqe(uintptr_t vwqe, uint16_t port_id, const 
uint32_t flags, struc
        if (flags & NIX_RX_OFFLOAD_TSTAMP_F && tstamp)
                mbuf_init |= 8;
 
+       if (flags & NIX_RX_OFFLOAD_SECURITY_F) {
+               mp = (struct rte_mempool *)cnxk_nix_inl_metapool_get(port_id, 
lookup_mem);
+               if (mp)
+                       meta_aura = mp->pool_id;
+       }
+
        nb_mbufs = RTE_ALIGN_FLOOR(vec->nb_elem, NIX_DESCS_PER_LOOP);
        nb_mbufs = cn20k_nix_recv_pkts_vector(&mbuf_init, wqe, nb_mbufs, flags 
| NIX_RX_VWQE_F,
-                                             lookup_mem, tstamp, lbase, 0);
+                                             lookup_mem, tstamp, lbase, 
meta_aura);
        wqe += nb_mbufs;
        non_vec = vec->nb_elem - nb_mbufs;
 
+       if (flags & NIX_RX_OFFLOAD_SECURITY_F && non_vec) {
+               uint64_t sg_w1;
+
+               mbuf = (struct rte_mbuf *)((uintptr_t)wqe[0] - sizeof(struct 
rte_mbuf));
+               /* Pick first mbuf's aura handle assuming all
+                * mbufs are from a vec and are from same RQ.
+                */
+               if (!meta_aura)
+                       meta_aura = mbuf->pool->pool_id;
+               ROC_LMT_BASE_ID_GET(lbase, lmt_id);
+               laddr = lbase;
+               laddr += 8;
+               sg_w1 = *(uint64_t *)(((uintptr_t)wqe[0]) + 72);
+               d_off = sg_w1 - (uintptr_t)mbuf;
+               sa_base = cnxk_nix_sa_base_get(mbuf_init >> 48, lookup_mem);
+               sa_base &= ~(ROC_NIX_INL_SA_BASE_ALIGN - 1);
+
+               if (flags & NIX_RX_REAS_F)
+                       buf_sz = cnxk_nix_inl_bufsize_get(port_id, lookup_mem);
+       }
+
        while (non_vec) {
                struct nix_cqe_hdr_s *cqe = (struct nix_cqe_hdr_s *)wqe[0];
 
@@ -83,8 +120,29 @@ cn20k_process_vwqe(uintptr_t vwqe, uint16_t port_id, const 
uint32_t flags, struc
                /* Mark mempool obj as "get" as it is alloc'ed by NIX */
                RTE_MEMPOOL_CHECK_COOKIES(mbuf->pool, (void **)&mbuf, 1, 1);
 
-               cn20k_nix_cqe_to_mbuf(cqe, cqe->tag, mbuf, lookup_mem, 
mbuf_init, cpth, sa_base, 0,
-                                     flags);
+               /* Translate meta to mbuf */
+               if (flags & NIX_RX_OFFLOAD_SECURITY_F) {
+                       const uint64_t cq_w1 = *((const uint64_t *)cqe + 1);
+
+                       cpth = ((uintptr_t)mbuf + (uint16_t)d_off);
+
+                       if (cq_w1 & BIT(11)) {
+                               /* Mark meta mbuf as put */
+                               RTE_MEMPOOL_CHECK_COOKIES(mbuf->pool, (void 
**)&mbuf, 1, 0);
+
+                               /* Store meta in lmtline to free
+                                * Assume all meta's from same aura.
+                                */
+                               *(uint64_t *)(laddr + (loff << 3)) = 
(uint64_t)mbuf;
+                               loff = loff + 1;
+                               mbuf = (struct rte_mbuf *)(*(uint64_t *)(cpth + 
8) - m_sz);
+                               /* Mark inner mbuf as get */
+                               RTE_MEMPOOL_CHECK_COOKIES(mbuf->pool, (void 
**)&mbuf, 1, 1);
+                       }
+               }
+
+               cn20k_nix_cqe_to_mbuf(cqe, cqe->tag, mbuf, lookup_mem, 
mbuf_init, cpth, sa_base,
+                                     buf_sz, flags);
 
                if (flags & NIX_RX_OFFLOAD_TSTAMP_F)
                        cn20k_sso_process_tstamp((uint64_t)wqe[0], 
(uint64_t)mbuf, tstamp);
@@ -92,11 +150,18 @@ cn20k_process_vwqe(uintptr_t vwqe, uint16_t port_id, const 
uint32_t flags, struc
                non_vec--;
                wqe++;
        }
+
+       /* Free remaining meta buffers if any */
+       if (flags & NIX_RX_OFFLOAD_SECURITY_F && loff) {
+               nix_sec_flush_meta(laddr, lmt_id, loff, meta_aura);
+               plt_io_wmb();
+       }
 }
 
 static __rte_always_inline void
 cn20k_sso_hws_post_process(struct cn20k_sso_hws *ws, uint64_t *u64, const 
uint32_t flags)
 {
+       uint8_t m_sz = sizeof(struct rte_mbuf);
        uintptr_t sa_base = 0;
 
        u64[0] = (u64[0] & (0x3ull << 32)) << 6 | (u64[0] & (0x3FFull << 36)) 
<< 4 |
@@ -112,6 +177,44 @@ cn20k_sso_hws_post_process(struct cn20k_sso_hws *ws, 
uint64_t *u64, const uint32
                /* Mark mempool obj as "get" as it is alloc'ed by NIX */
                RTE_MEMPOOL_CHECK_COOKIES(((struct rte_mbuf *)mbuf)->pool, 
(void **)&mbuf, 1, 1);
 
+               if (flags & NIX_RX_OFFLOAD_SECURITY_F) {
+                       void *lookup_mem = ws->lookup_mem;
+                       struct rte_mempool *mp = NULL;
+                       uint64_t meta_aura;
+                       struct rte_mbuf *m;
+                       uint64_t iova = 0;
+                       uint8_t loff = 0;
+                       uint16_t d_off;
+                       uint64_t cq_w1;
+
+                       m = (struct rte_mbuf *)mbuf;
+                       d_off = (*(uint64_t *)(u64[1] + 72)) - (uintptr_t)m;
+                       cq_w1 = *(uint64_t *)(u64[1] + 8);
+
+                       sa_base = cnxk_nix_sa_base_get(port, ws->lookup_mem);
+                       sa_base &= ~(ROC_NIX_INL_SA_BASE_ALIGN - 1);
+
+                       cpth = ((uintptr_t)mbuf + (uint16_t)d_off);
+                       mp = (struct rte_mempool 
*)cnxk_nix_inl_metapool_get(port, lookup_mem);
+                       meta_aura = mp ? mp->pool_id : m->pool->pool_id;
+
+                       if (cq_w1 & BIT(11)) {
+                               /* Mark meta mbuf as put */
+                               RTE_MEMPOOL_CHECK_COOKIES(m->pool, (void **)&m, 
1, 0);
+
+                               /* Store meta in lmtline to free
+                                * Assume all meta's from same aura.
+                                */
+                               *(uint64_t *)((uintptr_t)&iova + (loff << 3)) = 
(uint64_t)m;
+                               loff = loff + 1;
+                               mbuf = (uint64_t)(*(uint64_t *)(cpth + 8) - 
m_sz);
+                               /* Mark inner mbuf as get */
+                               RTE_MEMPOOL_CHECK_COOKIES(((struct rte_mbuf 
*)mbuf)->pool,
+                                                         (void **)&mbuf, 1, 1);
+                               roc_npa_aura_op_free(meta_aura, 0, iova);
+                       }
+               }
+
                u64[0] = CNXK_CLR_SUB_EVENT(u64[0]);
                cn20k_wqe_to_mbuf(u64[1], mbuf, port, u64[0] & 0xFFFFF, flags, 
ws->lookup_mem, cpth,
                                  sa_base);
diff --git a/drivers/net/cnxk/cn20k_rx.h b/drivers/net/cnxk/cn20k_rx.h
index 6af63aaeb6..b54d9df662 100644
--- a/drivers/net/cnxk/cn20k_rx.h
+++ b/drivers/net/cnxk/cn20k_rx.h
@@ -616,7 +616,6 @@ cn20k_nix_flush_recv_pkts(void *rx_queue, struct rte_mbuf 
**rx_pkts, uint16_t pk
        if (flags & NIX_RX_OFFLOAD_SECURITY_F) {
                sa_base = rxq->sa_base;
                sa_base &= ~(ROC_NIX_INL_SA_BASE_ALIGN - 1);
-               ROC_LMT_BASE_ID_GET(lbase, lmt_id);
        }
 
        while (packets < nb_pkts) {
@@ -755,15 +754,14 @@ cn20k_nix_recv_pkts_vector(void *args, struct rte_mbuf 
**mbufs, uint16_t pkts, c
        uint64x2_t rearm3 = vdupq_n_u64(mbuf_initializer);
        struct rte_mbuf *mbuf0, *mbuf1, *mbuf2, *mbuf3;
        uint8_t loff = 0, lnum = 0, shft = 0;
+       uint64_t lbase, laddr, buf_sz;
        uint8x16_t f0, f1, f2, f3;
        uint16_t lmt_id, d_off;
-       uint64_t lbase, laddr;
        uintptr_t sa_base = 0;
        uint16_t packets = 0;
        uint16_t pkts_left;
        uint32_t head;
        uintptr_t cq0;
-       uint64_t buf_sz = rxq->mp_buf_sz;
 
        if (!(flags & NIX_RX_VWQE_F)) {
                lookup_mem = rxq->lookup_mem;
@@ -814,6 +812,7 @@ cn20k_nix_recv_pkts_vector(void *args, struct rte_mbuf 
**mbufs, uint16_t pkts, c
                        d_off = rxq->data_off;
                        sa_base = rxq->sa_base;
                        lbase = rxq->lmt_base;
+                       buf_sz = rxq->mp_buf_sz;
                }
 
                sa_base &= ~(ROC_NIX_INL_SA_BASE_ALIGN - 1);
-- 
2.34.1

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