#ifndef __CN9K_TX_H__
#define __CN9K_TX_H__
+#include <rte_vect.h>
+
#define NIX_TX_OFFLOAD_NONE (0)
#define NIX_TX_OFFLOAD_L3_L4_CSUM_F BIT(0)
#define NIX_TX_OFFLOAD_OL3_OL4_CSUM_F BIT(1)
return roc_lmt_submit_ldeorl(io_addr);
}
+static __rte_always_inline uint16_t
+cn9k_nix_prepare_mseg(struct rte_mbuf *m, uint64_t *cmd, const uint16_t flags)
+{
+ struct nix_send_hdr_s *send_hdr;
+ union nix_send_sg_s *sg;
+ struct rte_mbuf *m_next;
+ uint64_t *slist, sg_u;
+ uint64_t nb_segs;
+ uint64_t segdw;
+ uint8_t off, i;
+
+ send_hdr = (struct nix_send_hdr_s *)cmd;
+ send_hdr->w0.total = m->pkt_len;
+ send_hdr->w0.aura = roc_npa_aura_handle_to_aura(m->pool->pool_id);
+
+ if (flags & NIX_TX_NEED_EXT_HDR)
+ off = 2;
+ else
+ off = 0;
+
+ sg = (union nix_send_sg_s *)&cmd[2 + off];
+ /* Clear sg->u header before use */
+ sg->u &= 0xFC00000000000000;
+ sg_u = sg->u;
+ slist = &cmd[3 + off];
+
+ i = 0;
+ nb_segs = m->nb_segs;
+
+ /* Fill mbuf segments */
+ do {
+ m_next = m->next;
+ sg_u = sg_u | ((uint64_t)m->data_len << (i << 4));
+ *slist = rte_mbuf_data_iova(m);
+ /* Set invert df if buffer is not to be freed by H/W */
+ if (flags & NIX_TX_OFFLOAD_MBUF_NOFF_F) {
+ sg_u |= (cnxk_nix_prefree_seg(m) << (i + 55));
+ /* Commit changes to mbuf */
+ rte_io_wmb();
+ }
+ /* Mark mempool object as "put" since it is freed by NIX */
+#ifdef RTE_LIBRTE_MEMPOOL_DEBUG
+ if (!(sg_u & (1ULL << (i + 55))))
+ __mempool_check_cookies(m->pool, (void **)&m, 1, 0);
+ rte_io_wmb();
+#endif
+ slist++;
+ i++;
+ nb_segs--;
+ if (i > 2 && nb_segs) {
+ i = 0;
+ /* Next SG subdesc */
+ *(uint64_t *)slist = sg_u & 0xFC00000000000000;
+ sg->u = sg_u;
+ sg->segs = 3;
+ sg = (union nix_send_sg_s *)slist;
+ sg_u = sg->u;
+ slist++;
+ }
+ m = m_next;
+ } while (nb_segs);
+
+ sg->u = sg_u;
+ sg->segs = i;
+ segdw = (uint64_t *)slist - (uint64_t *)&cmd[2 + off];
+ /* Roundup extra dwords to multiple of 2 */
+ segdw = (segdw >> 1) + (segdw & 0x1);
+ /* Default dwords */
+ segdw += (off >> 1) + 1;
+ send_hdr->w0.sizem1 = segdw - 1;
+
+ return segdw;
+}
+
+static __rte_always_inline void
+cn9k_nix_xmit_mseg_prep_lmt(uint64_t *cmd, void *lmt_addr, uint16_t segdw)
+{
+ roc_lmt_mov_seg(lmt_addr, (const void *)cmd, segdw);
+}
+
+static __rte_always_inline void
+cn9k_nix_xmit_mseg_one(uint64_t *cmd, void *lmt_addr, rte_iova_t io_addr,
+ uint16_t segdw)
+{
+ uint64_t lmt_status;
+
+ do {
+ roc_lmt_mov_seg(lmt_addr, (const void *)cmd, segdw);
+ lmt_status = roc_lmt_submit_ldeor(io_addr);
+ } while (lmt_status == 0);
+}
+
+static __rte_always_inline void
+cn9k_nix_xmit_mseg_one_release(uint64_t *cmd, void *lmt_addr,
+ rte_iova_t io_addr, uint16_t segdw)
+{
+ uint64_t lmt_status;
+
+ rte_io_wmb();
+ do {
+ roc_lmt_mov_seg(lmt_addr, (const void *)cmd, segdw);
+ lmt_status = roc_lmt_submit_ldeor(io_addr);
+ } while (lmt_status == 0);
+}
+
static __rte_always_inline uint16_t
cn9k_nix_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts, uint16_t pkts,
uint64_t *cmd, const uint16_t flags)
return pkts;
}
+static __rte_always_inline uint16_t
+cn9k_nix_xmit_pkts_mseg(void *tx_queue, struct rte_mbuf **tx_pkts,
+ uint16_t pkts, uint64_t *cmd, const uint16_t flags)
+{
+ struct cn9k_eth_txq *txq = tx_queue;
+ const rte_iova_t io_addr = txq->io_addr;
+ void *lmt_addr = txq->lmt_addr;
+ uint64_t lso_tun_fmt;
+ uint16_t segdw;
+ uint64_t i;
+
+ NIX_XMIT_FC_OR_RETURN(txq, pkts);
+
+ roc_lmt_mov(cmd, &txq->cmd[0], cn9k_nix_tx_ext_subs(flags));
+
+ /* Perform header writes before barrier for TSO */
+ if (flags & NIX_TX_OFFLOAD_TSO_F) {
+ lso_tun_fmt = txq->lso_tun_fmt;
+
+ for (i = 0; i < pkts; i++)
+ cn9k_nix_xmit_prepare_tso(tx_pkts[i], flags);
+ }
+
+ /* Lets commit any changes in the packet here as no further changes
+ * to the packet will be done unless no fast free is enabled.
+ */
+ if (!(flags & NIX_TX_OFFLOAD_MBUF_NOFF_F))
+ rte_io_wmb();
+
+ for (i = 0; i < pkts; i++) {
+ cn9k_nix_xmit_prepare(tx_pkts[i], cmd, flags, lso_tun_fmt);
+ segdw = cn9k_nix_prepare_mseg(tx_pkts[i], cmd, flags);
+ cn9k_nix_xmit_mseg_one(cmd, lmt_addr, io_addr, segdw);
+ }
+
+ /* Reduce the cached count */
+ txq->fc_cache_pkts -= pkts;
+
+ return pkts;
+}
+
+#if defined(RTE_ARCH_ARM64)
+
+#define NIX_DESCS_PER_LOOP 4
+static __rte_always_inline uint16_t
+cn9k_nix_xmit_pkts_vector(void *tx_queue, struct rte_mbuf **tx_pkts,
+ uint16_t pkts, uint64_t *cmd, const uint16_t flags)
+{
+ uint64x2_t dataoff_iova0, dataoff_iova1, dataoff_iova2, dataoff_iova3;
+ uint64x2_t len_olflags0, len_olflags1, len_olflags2, len_olflags3;
+ uint64x2_t cmd0[NIX_DESCS_PER_LOOP], cmd1[NIX_DESCS_PER_LOOP];
+ uint64_t *mbuf0, *mbuf1, *mbuf2, *mbuf3;
+ uint64x2_t senddesc01_w0, senddesc23_w0;
+ uint64x2_t senddesc01_w1, senddesc23_w1;
+ uint64x2_t sgdesc01_w0, sgdesc23_w0;
+ uint64x2_t sgdesc01_w1, sgdesc23_w1;
+ struct cn9k_eth_txq *txq = tx_queue;
+ uint64_t *lmt_addr = txq->lmt_addr;
+ rte_iova_t io_addr = txq->io_addr;
+ uint64x2_t ltypes01, ltypes23;
+ uint64x2_t xtmp128, ytmp128;
+ uint64x2_t xmask01, xmask23;
+ uint64_t lmt_status, i;
+ uint16_t pkts_left;
+
+ NIX_XMIT_FC_OR_RETURN(txq, pkts);
+
+ pkts_left = pkts & (NIX_DESCS_PER_LOOP - 1);
+ pkts = RTE_ALIGN_FLOOR(pkts, NIX_DESCS_PER_LOOP);
+
+ /* Reduce the cached count */
+ txq->fc_cache_pkts -= pkts;
+
+ /* Lets commit any changes in the packet here as no further changes
+ * to the packet will be done unless no fast free is enabled.
+ */
+ if (!(flags & NIX_TX_OFFLOAD_MBUF_NOFF_F))
+ rte_io_wmb();
+
+ senddesc01_w0 = vld1q_dup_u64(&txq->cmd[0]);
+ senddesc23_w0 = senddesc01_w0;
+ senddesc01_w1 = vdupq_n_u64(0);
+ senddesc23_w1 = senddesc01_w1;
+ sgdesc01_w0 = vld1q_dup_u64(&txq->cmd[2]);
+ sgdesc23_w0 = sgdesc01_w0;
+
+ for (i = 0; i < pkts; i += NIX_DESCS_PER_LOOP) {
+ /* Clear lower 32bit of SEND_HDR_W0 and SEND_SG_W0 */
+ senddesc01_w0 =
+ vbicq_u64(senddesc01_w0, vdupq_n_u64(0xFFFFFFFF));
+ sgdesc01_w0 = vbicq_u64(sgdesc01_w0, vdupq_n_u64(0xFFFFFFFF));
+
+ senddesc23_w0 = senddesc01_w0;
+ sgdesc23_w0 = sgdesc01_w0;
+
+ /* Move mbufs to iova */
+ mbuf0 = (uint64_t *)tx_pkts[0];
+ mbuf1 = (uint64_t *)tx_pkts[1];
+ mbuf2 = (uint64_t *)tx_pkts[2];
+ mbuf3 = (uint64_t *)tx_pkts[3];
+
+ mbuf0 = (uint64_t *)((uintptr_t)mbuf0 +
+ offsetof(struct rte_mbuf, buf_iova));
+ mbuf1 = (uint64_t *)((uintptr_t)mbuf1 +
+ offsetof(struct rte_mbuf, buf_iova));
+ mbuf2 = (uint64_t *)((uintptr_t)mbuf2 +
+ offsetof(struct rte_mbuf, buf_iova));
+ mbuf3 = (uint64_t *)((uintptr_t)mbuf3 +
+ offsetof(struct rte_mbuf, buf_iova));
+ /*
+ * Get mbuf's, olflags, iova, pktlen, dataoff
+ * dataoff_iovaX.D[0] = iova,
+ * dataoff_iovaX.D[1](15:0) = mbuf->dataoff
+ * len_olflagsX.D[0] = ol_flags,
+ * len_olflagsX.D[1](63:32) = mbuf->pkt_len
+ */
+ dataoff_iova0 = vld1q_u64(mbuf0);
+ len_olflags0 = vld1q_u64(mbuf0 + 2);
+ dataoff_iova1 = vld1q_u64(mbuf1);
+ len_olflags1 = vld1q_u64(mbuf1 + 2);
+ dataoff_iova2 = vld1q_u64(mbuf2);
+ len_olflags2 = vld1q_u64(mbuf2 + 2);
+ dataoff_iova3 = vld1q_u64(mbuf3);
+ len_olflags3 = vld1q_u64(mbuf3 + 2);
+
+ /* Move mbufs to point pool */
+ mbuf0 = (uint64_t *)((uintptr_t)mbuf0 +
+ offsetof(struct rte_mbuf, pool) -
+ offsetof(struct rte_mbuf, buf_iova));
+ mbuf1 = (uint64_t *)((uintptr_t)mbuf1 +
+ offsetof(struct rte_mbuf, pool) -
+ offsetof(struct rte_mbuf, buf_iova));
+ mbuf2 = (uint64_t *)((uintptr_t)mbuf2 +
+ offsetof(struct rte_mbuf, pool) -
+ offsetof(struct rte_mbuf, buf_iova));
+ mbuf3 = (uint64_t *)((uintptr_t)mbuf3 +
+ offsetof(struct rte_mbuf, pool) -
+ offsetof(struct rte_mbuf, buf_iova));
+
+ if (flags & (NIX_TX_OFFLOAD_OL3_OL4_CSUM_F |
+ NIX_TX_OFFLOAD_L3_L4_CSUM_F)) {
+ /* Get tx_offload for ol2, ol3, l2, l3 lengths */
+ /*
+ * E(8):OL2_LEN(7):OL3_LEN(9):E(24):L3_LEN(9):L2_LEN(7)
+ * E(8):OL2_LEN(7):OL3_LEN(9):E(24):L3_LEN(9):L2_LEN(7)
+ */
+
+ asm volatile("LD1 {%[a].D}[0],[%[in]]\n\t"
+ : [a] "+w"(senddesc01_w1)
+ : [in] "r"(mbuf0 + 2)
+ : "memory");
+
+ asm volatile("LD1 {%[a].D}[1],[%[in]]\n\t"
+ : [a] "+w"(senddesc01_w1)
+ : [in] "r"(mbuf1 + 2)
+ : "memory");
+
+ asm volatile("LD1 {%[b].D}[0],[%[in]]\n\t"
+ : [b] "+w"(senddesc23_w1)
+ : [in] "r"(mbuf2 + 2)
+ : "memory");
+
+ asm volatile("LD1 {%[b].D}[1],[%[in]]\n\t"
+ : [b] "+w"(senddesc23_w1)
+ : [in] "r"(mbuf3 + 2)
+ : "memory");
+
+ /* Get pool pointer alone */
+ mbuf0 = (uint64_t *)*mbuf0;
+ mbuf1 = (uint64_t *)*mbuf1;
+ mbuf2 = (uint64_t *)*mbuf2;
+ mbuf3 = (uint64_t *)*mbuf3;
+ } else {
+ /* Get pool pointer alone */
+ mbuf0 = (uint64_t *)*mbuf0;
+ mbuf1 = (uint64_t *)*mbuf1;
+ mbuf2 = (uint64_t *)*mbuf2;
+ mbuf3 = (uint64_t *)*mbuf3;
+ }
+
+ const uint8x16_t shuf_mask2 = {
+ 0x4, 0x5, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
+ 0xc, 0xd, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
+ };
+ xtmp128 = vzip2q_u64(len_olflags0, len_olflags1);
+ ytmp128 = vzip2q_u64(len_olflags2, len_olflags3);
+
+ /* Clear dataoff_iovaX.D[1] bits other than dataoff(15:0) */
+ const uint64x2_t and_mask0 = {
+ 0xFFFFFFFFFFFFFFFF,
+ 0x000000000000FFFF,
+ };
+
+ dataoff_iova0 = vandq_u64(dataoff_iova0, and_mask0);
+ dataoff_iova1 = vandq_u64(dataoff_iova1, and_mask0);
+ dataoff_iova2 = vandq_u64(dataoff_iova2, and_mask0);
+ dataoff_iova3 = vandq_u64(dataoff_iova3, and_mask0);
+
+ /*
+ * Pick only 16 bits of pktlen preset at bits 63:32
+ * and place them at bits 15:0.
+ */
+ xtmp128 = vqtbl1q_u8(xtmp128, shuf_mask2);
+ ytmp128 = vqtbl1q_u8(ytmp128, shuf_mask2);
+
+ /* Add pairwise to get dataoff + iova in sgdesc_w1 */
+ sgdesc01_w1 = vpaddq_u64(dataoff_iova0, dataoff_iova1);
+ sgdesc23_w1 = vpaddq_u64(dataoff_iova2, dataoff_iova3);
+
+ /* Orr both sgdesc_w0 and senddesc_w0 with 16 bits of
+ * pktlen at 15:0 position.
+ */
+ sgdesc01_w0 = vorrq_u64(sgdesc01_w0, xtmp128);
+ sgdesc23_w0 = vorrq_u64(sgdesc23_w0, ytmp128);
+ senddesc01_w0 = vorrq_u64(senddesc01_w0, xtmp128);
+ senddesc23_w0 = vorrq_u64(senddesc23_w0, ytmp128);
+
+ /* Move mbuf to point to pool_id. */
+ mbuf0 = (uint64_t *)((uintptr_t)mbuf0 +
+ offsetof(struct rte_mempool, pool_id));
+ mbuf1 = (uint64_t *)((uintptr_t)mbuf1 +
+ offsetof(struct rte_mempool, pool_id));
+ mbuf2 = (uint64_t *)((uintptr_t)mbuf2 +
+ offsetof(struct rte_mempool, pool_id));
+ mbuf3 = (uint64_t *)((uintptr_t)mbuf3 +
+ offsetof(struct rte_mempool, pool_id));
+
+ if ((flags & NIX_TX_OFFLOAD_L3_L4_CSUM_F) &&
+ !(flags & NIX_TX_OFFLOAD_OL3_OL4_CSUM_F)) {
+ /*
+ * Lookup table to translate ol_flags to
+ * il3/il4 types. But we still use ol3/ol4 types in
+ * senddesc_w1 as only one header processing is enabled.
+ */
+ const uint8x16_t tbl = {
+ /* [0-15] = il4type:il3type */
+ 0x04, /* none (IPv6 assumed) */
+ 0x14, /* PKT_TX_TCP_CKSUM (IPv6 assumed) */
+ 0x24, /* PKT_TX_SCTP_CKSUM (IPv6 assumed) */
+ 0x34, /* PKT_TX_UDP_CKSUM (IPv6 assumed) */
+ 0x03, /* PKT_TX_IP_CKSUM */
+ 0x13, /* PKT_TX_IP_CKSUM | PKT_TX_TCP_CKSUM */
+ 0x23, /* PKT_TX_IP_CKSUM | PKT_TX_SCTP_CKSUM */
+ 0x33, /* PKT_TX_IP_CKSUM | PKT_TX_UDP_CKSUM */
+ 0x02, /* PKT_TX_IPV4 */
+ 0x12, /* PKT_TX_IPV4 | PKT_TX_TCP_CKSUM */
+ 0x22, /* PKT_TX_IPV4 | PKT_TX_SCTP_CKSUM */
+ 0x32, /* PKT_TX_IPV4 | PKT_TX_UDP_CKSUM */
+ 0x03, /* PKT_TX_IPV4 | PKT_TX_IP_CKSUM */
+ 0x13, /* PKT_TX_IPV4 | PKT_TX_IP_CKSUM |
+ * PKT_TX_TCP_CKSUM
+ */
+ 0x23, /* PKT_TX_IPV4 | PKT_TX_IP_CKSUM |
+ * PKT_TX_SCTP_CKSUM
+ */
+ 0x33, /* PKT_TX_IPV4 | PKT_TX_IP_CKSUM |
+ * PKT_TX_UDP_CKSUM
+ */
+ };
+
+ /* Extract olflags to translate to iltypes */
+ xtmp128 = vzip1q_u64(len_olflags0, len_olflags1);
+ ytmp128 = vzip1q_u64(len_olflags2, len_olflags3);
+
+ /*
+ * E(47):L3_LEN(9):L2_LEN(7+z)
+ * E(47):L3_LEN(9):L2_LEN(7+z)
+ */
+ senddesc01_w1 = vshlq_n_u64(senddesc01_w1, 1);
+ senddesc23_w1 = vshlq_n_u64(senddesc23_w1, 1);
+
+ /* Move OLFLAGS bits 55:52 to 51:48
+ * with zeros preprended on the byte and rest
+ * don't care
+ */
+ xtmp128 = vshrq_n_u8(xtmp128, 4);
+ ytmp128 = vshrq_n_u8(ytmp128, 4);
+ /*
+ * E(48):L3_LEN(8):L2_LEN(z+7)
+ * E(48):L3_LEN(8):L2_LEN(z+7)
+ */
+ const int8x16_t tshft3 = {
+ -1, 0, 8, 8, 8, 8, 8, 8,
+ -1, 0, 8, 8, 8, 8, 8, 8,
+ };
+
+ senddesc01_w1 = vshlq_u8(senddesc01_w1, tshft3);
+ senddesc23_w1 = vshlq_u8(senddesc23_w1, tshft3);
+
+ /* Do the lookup */
+ ltypes01 = vqtbl1q_u8(tbl, xtmp128);
+ ltypes23 = vqtbl1q_u8(tbl, ytmp128);
+
+ /* Pick only relevant fields i.e Bit 48:55 of iltype
+ * and place it in ol3/ol4type of senddesc_w1
+ */
+ const uint8x16_t shuf_mask0 = {
+ 0xFF, 0xFF, 0xFF, 0xFF, 0x6, 0xFF, 0xFF, 0xFF,
+ 0xFF, 0xFF, 0xFF, 0xFF, 0xE, 0xFF, 0xFF, 0xFF,
+ };
+
+ ltypes01 = vqtbl1q_u8(ltypes01, shuf_mask0);
+ ltypes23 = vqtbl1q_u8(ltypes23, shuf_mask0);
+
+ /* Prepare ol4ptr, ol3ptr from ol3len, ol2len.
+ * a [E(32):E(16):OL3(8):OL2(8)]
+ * a = a + (a << 8)
+ * a [E(32):E(16):(OL3+OL2):OL2]
+ * => E(32):E(16)::OL4PTR(8):OL3PTR(8)
+ */
+ senddesc01_w1 = vaddq_u8(senddesc01_w1,
+ vshlq_n_u16(senddesc01_w1, 8));
+ senddesc23_w1 = vaddq_u8(senddesc23_w1,
+ vshlq_n_u16(senddesc23_w1, 8));
+
+ /* Move ltypes to senddesc*_w1 */
+ senddesc01_w1 = vorrq_u64(senddesc01_w1, ltypes01);
+ senddesc23_w1 = vorrq_u64(senddesc23_w1, ltypes23);
+ } else if (!(flags & NIX_TX_OFFLOAD_L3_L4_CSUM_F) &&
+ (flags & NIX_TX_OFFLOAD_OL3_OL4_CSUM_F)) {
+ /*
+ * Lookup table to translate ol_flags to
+ * ol3/ol4 types.
+ */
+
+ const uint8x16_t tbl = {
+ /* [0-15] = ol4type:ol3type */
+ 0x00, /* none */
+ 0x03, /* OUTER_IP_CKSUM */
+ 0x02, /* OUTER_IPV4 */
+ 0x03, /* OUTER_IPV4 | OUTER_IP_CKSUM */
+ 0x04, /* OUTER_IPV6 */
+ 0x00, /* OUTER_IPV6 | OUTER_IP_CKSUM */
+ 0x00, /* OUTER_IPV6 | OUTER_IPV4 */
+ 0x00, /* OUTER_IPV6 | OUTER_IPV4 |
+ * OUTER_IP_CKSUM
+ */
+ 0x00, /* OUTER_UDP_CKSUM */
+ 0x33, /* OUTER_UDP_CKSUM | OUTER_IP_CKSUM */
+ 0x32, /* OUTER_UDP_CKSUM | OUTER_IPV4 */
+ 0x33, /* OUTER_UDP_CKSUM | OUTER_IPV4 |
+ * OUTER_IP_CKSUM
+ */
+ 0x34, /* OUTER_UDP_CKSUM | OUTER_IPV6 */
+ 0x00, /* OUTER_UDP_CKSUM | OUTER_IPV6 |
+ * OUTER_IP_CKSUM
+ */
+ 0x00, /* OUTER_UDP_CKSUM | OUTER_IPV6 |
+ * OUTER_IPV4
+ */
+ 0x00, /* OUTER_UDP_CKSUM | OUTER_IPV6 |
+ * OUTER_IPV4 | OUTER_IP_CKSUM
+ */
+ };
+
+ /* Extract olflags to translate to iltypes */
+ xtmp128 = vzip1q_u64(len_olflags0, len_olflags1);
+ ytmp128 = vzip1q_u64(len_olflags2, len_olflags3);
+
+ /*
+ * E(47):OL3_LEN(9):OL2_LEN(7+z)
+ * E(47):OL3_LEN(9):OL2_LEN(7+z)
+ */
+ const uint8x16_t shuf_mask5 = {
+ 0x6, 0x5, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
+ 0xE, 0xD, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
+ };
+ senddesc01_w1 = vqtbl1q_u8(senddesc01_w1, shuf_mask5);
+ senddesc23_w1 = vqtbl1q_u8(senddesc23_w1, shuf_mask5);
+
+ /* Extract outer ol flags only */
+ const uint64x2_t o_cksum_mask = {
+ 0x1C00020000000000,
+ 0x1C00020000000000,
+ };
+
+ xtmp128 = vandq_u64(xtmp128, o_cksum_mask);
+ ytmp128 = vandq_u64(ytmp128, o_cksum_mask);
+
+ /* Extract OUTER_UDP_CKSUM bit 41 and
+ * move it to bit 61
+ */
+
+ xtmp128 = xtmp128 | vshlq_n_u64(xtmp128, 20);
+ ytmp128 = ytmp128 | vshlq_n_u64(ytmp128, 20);
+
+ /* Shift oltype by 2 to start nibble from BIT(56)
+ * instead of BIT(58)
+ */
+ xtmp128 = vshrq_n_u8(xtmp128, 2);
+ ytmp128 = vshrq_n_u8(ytmp128, 2);
+ /*
+ * E(48):L3_LEN(8):L2_LEN(z+7)
+ * E(48):L3_LEN(8):L2_LEN(z+7)
+ */
+ const int8x16_t tshft3 = {
+ -1, 0, 8, 8, 8, 8, 8, 8,
+ -1, 0, 8, 8, 8, 8, 8, 8,
+ };
+
+ senddesc01_w1 = vshlq_u8(senddesc01_w1, tshft3);
+ senddesc23_w1 = vshlq_u8(senddesc23_w1, tshft3);
+
+ /* Do the lookup */
+ ltypes01 = vqtbl1q_u8(tbl, xtmp128);
+ ltypes23 = vqtbl1q_u8(tbl, ytmp128);
+
+ /* Pick only relevant fields i.e Bit 56:63 of oltype
+ * and place it in ol3/ol4type of senddesc_w1
+ */
+ const uint8x16_t shuf_mask0 = {
+ 0xFF, 0xFF, 0xFF, 0xFF, 0x7, 0xFF, 0xFF, 0xFF,
+ 0xFF, 0xFF, 0xFF, 0xFF, 0xF, 0xFF, 0xFF, 0xFF,
+ };
+
+ ltypes01 = vqtbl1q_u8(ltypes01, shuf_mask0);
+ ltypes23 = vqtbl1q_u8(ltypes23, shuf_mask0);
+
+ /* Prepare ol4ptr, ol3ptr from ol3len, ol2len.
+ * a [E(32):E(16):OL3(8):OL2(8)]
+ * a = a + (a << 8)
+ * a [E(32):E(16):(OL3+OL2):OL2]
+ * => E(32):E(16)::OL4PTR(8):OL3PTR(8)
+ */
+ senddesc01_w1 = vaddq_u8(senddesc01_w1,
+ vshlq_n_u16(senddesc01_w1, 8));
+ senddesc23_w1 = vaddq_u8(senddesc23_w1,
+ vshlq_n_u16(senddesc23_w1, 8));
+
+ /* Move ltypes to senddesc*_w1 */
+ senddesc01_w1 = vorrq_u64(senddesc01_w1, ltypes01);
+ senddesc23_w1 = vorrq_u64(senddesc23_w1, ltypes23);
+ } else if ((flags & NIX_TX_OFFLOAD_L3_L4_CSUM_F) &&
+ (flags & NIX_TX_OFFLOAD_OL3_OL4_CSUM_F)) {
+ /* Lookup table to translate ol_flags to
+ * ol4type, ol3type, il4type, il3type of senddesc_w1
+ */
+ const uint8x16x2_t tbl = {{
+ {
+ /* [0-15] = il4type:il3type */
+ 0x04, /* none (IPv6) */
+ 0x14, /* PKT_TX_TCP_CKSUM (IPv6) */
+ 0x24, /* PKT_TX_SCTP_CKSUM (IPv6) */
+ 0x34, /* PKT_TX_UDP_CKSUM (IPv6) */
+ 0x03, /* PKT_TX_IP_CKSUM */
+ 0x13, /* PKT_TX_IP_CKSUM |
+ * PKT_TX_TCP_CKSUM
+ */
+ 0x23, /* PKT_TX_IP_CKSUM |
+ * PKT_TX_SCTP_CKSUM
+ */
+ 0x33, /* PKT_TX_IP_CKSUM |
+ * PKT_TX_UDP_CKSUM
+ */
+ 0x02, /* PKT_TX_IPV4 */
+ 0x12, /* PKT_TX_IPV4 |
+ * PKT_TX_TCP_CKSUM
+ */
+ 0x22, /* PKT_TX_IPV4 |
+ * PKT_TX_SCTP_CKSUM
+ */
+ 0x32, /* PKT_TX_IPV4 |
+ * PKT_TX_UDP_CKSUM
+ */
+ 0x03, /* PKT_TX_IPV4 |
+ * PKT_TX_IP_CKSUM
+ */
+ 0x13, /* PKT_TX_IPV4 | PKT_TX_IP_CKSUM |
+ * PKT_TX_TCP_CKSUM
+ */
+ 0x23, /* PKT_TX_IPV4 | PKT_TX_IP_CKSUM |
+ * PKT_TX_SCTP_CKSUM
+ */
+ 0x33, /* PKT_TX_IPV4 | PKT_TX_IP_CKSUM |
+ * PKT_TX_UDP_CKSUM
+ */
+ },
+
+ {
+ /* [16-31] = ol4type:ol3type */
+ 0x00, /* none */
+ 0x03, /* OUTER_IP_CKSUM */
+ 0x02, /* OUTER_IPV4 */
+ 0x03, /* OUTER_IPV4 | OUTER_IP_CKSUM */
+ 0x04, /* OUTER_IPV6 */
+ 0x00, /* OUTER_IPV6 | OUTER_IP_CKSUM */
+ 0x00, /* OUTER_IPV6 | OUTER_IPV4 */
+ 0x00, /* OUTER_IPV6 | OUTER_IPV4 |
+ * OUTER_IP_CKSUM
+ */
+ 0x00, /* OUTER_UDP_CKSUM */
+ 0x33, /* OUTER_UDP_CKSUM |
+ * OUTER_IP_CKSUM
+ */
+ 0x32, /* OUTER_UDP_CKSUM |
+ * OUTER_IPV4
+ */
+ 0x33, /* OUTER_UDP_CKSUM |
+ * OUTER_IPV4 | OUTER_IP_CKSUM
+ */
+ 0x34, /* OUTER_UDP_CKSUM |
+ * OUTER_IPV6
+ */
+ 0x00, /* OUTER_UDP_CKSUM | OUTER_IPV6 |
+ * OUTER_IP_CKSUM
+ */
+ 0x00, /* OUTER_UDP_CKSUM | OUTER_IPV6 |
+ * OUTER_IPV4
+ */
+ 0x00, /* OUTER_UDP_CKSUM | OUTER_IPV6 |
+ * OUTER_IPV4 | OUTER_IP_CKSUM
+ */
+ },
+ }};
+
+ /* Extract olflags to translate to oltype & iltype */
+ xtmp128 = vzip1q_u64(len_olflags0, len_olflags1);
+ ytmp128 = vzip1q_u64(len_olflags2, len_olflags3);
+
+ /*
+ * E(8):OL2_LN(7):OL3_LN(9):E(23):L3_LN(9):L2_LN(7+z)
+ * E(8):OL2_LN(7):OL3_LN(9):E(23):L3_LN(9):L2_LN(7+z)
+ */
+ const uint32x4_t tshft_4 = {
+ 1,
+ 0,
+ 1,
+ 0,
+ };
+ senddesc01_w1 = vshlq_u32(senddesc01_w1, tshft_4);
+ senddesc23_w1 = vshlq_u32(senddesc23_w1, tshft_4);
+
+ /*
+ * E(32):L3_LEN(8):L2_LEN(7+Z):OL3_LEN(8):OL2_LEN(7+Z)
+ * E(32):L3_LEN(8):L2_LEN(7+Z):OL3_LEN(8):OL2_LEN(7+Z)
+ */
+ const uint8x16_t shuf_mask5 = {
+ 0x6, 0x5, 0x0, 0x1, 0xFF, 0xFF, 0xFF, 0xFF,
+ 0xE, 0xD, 0x8, 0x9, 0xFF, 0xFF, 0xFF, 0xFF,
+ };
+ senddesc01_w1 = vqtbl1q_u8(senddesc01_w1, shuf_mask5);
+ senddesc23_w1 = vqtbl1q_u8(senddesc23_w1, shuf_mask5);
+
+ /* Extract outer and inner header ol_flags */
+ const uint64x2_t oi_cksum_mask = {
+ 0x1CF0020000000000,
+ 0x1CF0020000000000,
+ };
+
+ xtmp128 = vandq_u64(xtmp128, oi_cksum_mask);
+ ytmp128 = vandq_u64(ytmp128, oi_cksum_mask);
+
+ /* Extract OUTER_UDP_CKSUM bit 41 and
+ * move it to bit 61
+ */
+
+ xtmp128 = xtmp128 | vshlq_n_u64(xtmp128, 20);
+ ytmp128 = ytmp128 | vshlq_n_u64(ytmp128, 20);
+
+ /* Shift right oltype by 2 and iltype by 4
+ * to start oltype nibble from BIT(58)
+ * instead of BIT(56) and iltype nibble from BIT(48)
+ * instead of BIT(52).
+ */
+ const int8x16_t tshft5 = {
+ 8, 8, 8, 8, 8, 8, -4, -2,
+ 8, 8, 8, 8, 8, 8, -4, -2,
+ };
+
+ xtmp128 = vshlq_u8(xtmp128, tshft5);
+ ytmp128 = vshlq_u8(ytmp128, tshft5);
+ /*
+ * E(32):L3_LEN(8):L2_LEN(8):OL3_LEN(8):OL2_LEN(8)
+ * E(32):L3_LEN(8):L2_LEN(8):OL3_LEN(8):OL2_LEN(8)
+ */
+ const int8x16_t tshft3 = {
+ -1, 0, -1, 0, 0, 0, 0, 0,
+ -1, 0, -1, 0, 0, 0, 0, 0,
+ };
+
+ senddesc01_w1 = vshlq_u8(senddesc01_w1, tshft3);
+ senddesc23_w1 = vshlq_u8(senddesc23_w1, tshft3);
+
+ /* Mark Bit(4) of oltype */
+ const uint64x2_t oi_cksum_mask2 = {
+ 0x1000000000000000,
+ 0x1000000000000000,
+ };
+
+ xtmp128 = vorrq_u64(xtmp128, oi_cksum_mask2);
+ ytmp128 = vorrq_u64(ytmp128, oi_cksum_mask2);
+
+ /* Do the lookup */
+ ltypes01 = vqtbl2q_u8(tbl, xtmp128);
+ ltypes23 = vqtbl2q_u8(tbl, ytmp128);
+
+ /* Pick only relevant fields i.e Bit 48:55 of iltype and
+ * Bit 56:63 of oltype and place it in corresponding
+ * place in senddesc_w1.
+ */
+ const uint8x16_t shuf_mask0 = {
+ 0xFF, 0xFF, 0xFF, 0xFF, 0x7, 0x6, 0xFF, 0xFF,
+ 0xFF, 0xFF, 0xFF, 0xFF, 0xF, 0xE, 0xFF, 0xFF,
+ };
+
+ ltypes01 = vqtbl1q_u8(ltypes01, shuf_mask0);
+ ltypes23 = vqtbl1q_u8(ltypes23, shuf_mask0);
+
+ /* Prepare l4ptr, l3ptr, ol4ptr, ol3ptr from
+ * l3len, l2len, ol3len, ol2len.
+ * a [E(32):L3(8):L2(8):OL3(8):OL2(8)]
+ * a = a + (a << 8)
+ * a [E:(L3+L2):(L2+OL3):(OL3+OL2):OL2]
+ * a = a + (a << 16)
+ * a [E:(L3+L2+OL3+OL2):(L2+OL3+OL2):(OL3+OL2):OL2]
+ * => E(32):IL4PTR(8):IL3PTR(8):OL4PTR(8):OL3PTR(8)
+ */
+ senddesc01_w1 = vaddq_u8(senddesc01_w1,
+ vshlq_n_u32(senddesc01_w1, 8));
+ senddesc23_w1 = vaddq_u8(senddesc23_w1,
+ vshlq_n_u32(senddesc23_w1, 8));
+
+ /* Continue preparing l4ptr, l3ptr, ol4ptr, ol3ptr */
+ senddesc01_w1 = vaddq_u8(
+ senddesc01_w1, vshlq_n_u32(senddesc01_w1, 16));
+ senddesc23_w1 = vaddq_u8(
+ senddesc23_w1, vshlq_n_u32(senddesc23_w1, 16));
+
+ /* Move ltypes to senddesc*_w1 */
+ senddesc01_w1 = vorrq_u64(senddesc01_w1, ltypes01);
+ senddesc23_w1 = vorrq_u64(senddesc23_w1, ltypes23);
+ }
+
+ xmask01 = vdupq_n_u64(0);
+ xmask23 = xmask01;
+ asm volatile("LD1 {%[a].H}[0],[%[in]]\n\t"
+ : [a] "+w"(xmask01)
+ : [in] "r"(mbuf0)
+ : "memory");
+
+ asm volatile("LD1 {%[a].H}[4],[%[in]]\n\t"
+ : [a] "+w"(xmask01)
+ : [in] "r"(mbuf1)
+ : "memory");
+
+ asm volatile("LD1 {%[b].H}[0],[%[in]]\n\t"
+ : [b] "+w"(xmask23)
+ : [in] "r"(mbuf2)
+ : "memory");
+
+ asm volatile("LD1 {%[b].H}[4],[%[in]]\n\t"
+ : [b] "+w"(xmask23)
+ : [in] "r"(mbuf3)
+ : "memory");
+ xmask01 = vshlq_n_u64(xmask01, 20);
+ xmask23 = vshlq_n_u64(xmask23, 20);
+
+ senddesc01_w0 = vorrq_u64(senddesc01_w0, xmask01);
+ senddesc23_w0 = vorrq_u64(senddesc23_w0, xmask23);
+
+ if (flags & NIX_TX_OFFLOAD_MBUF_NOFF_F) {
+ /* Set don't free bit if reference count > 1 */
+ xmask01 = vdupq_n_u64(0);
+ xmask23 = xmask01;
+
+ /* Move mbufs to iova */
+ mbuf0 = (uint64_t *)tx_pkts[0];
+ mbuf1 = (uint64_t *)tx_pkts[1];
+ mbuf2 = (uint64_t *)tx_pkts[2];
+ mbuf3 = (uint64_t *)tx_pkts[3];
+
+ if (cnxk_nix_prefree_seg((struct rte_mbuf *)mbuf0))
+ vsetq_lane_u64(0x80000, xmask01, 0);
+ else
+ __mempool_check_cookies(
+ ((struct rte_mbuf *)mbuf0)->pool,
+ (void **)&mbuf0, 1, 0);
+
+ if (cnxk_nix_prefree_seg((struct rte_mbuf *)mbuf1))
+ vsetq_lane_u64(0x80000, xmask01, 1);
+ else
+ __mempool_check_cookies(
+ ((struct rte_mbuf *)mbuf1)->pool,
+ (void **)&mbuf1, 1, 0);
+
+ if (cnxk_nix_prefree_seg((struct rte_mbuf *)mbuf2))
+ vsetq_lane_u64(0x80000, xmask23, 0);
+ else
+ __mempool_check_cookies(
+ ((struct rte_mbuf *)mbuf2)->pool,
+ (void **)&mbuf2, 1, 0);
+
+ if (cnxk_nix_prefree_seg((struct rte_mbuf *)mbuf3))
+ vsetq_lane_u64(0x80000, xmask23, 1);
+ else
+ __mempool_check_cookies(
+ ((struct rte_mbuf *)mbuf3)->pool,
+ (void **)&mbuf3, 1, 0);
+ senddesc01_w0 = vorrq_u64(senddesc01_w0, xmask01);
+ senddesc23_w0 = vorrq_u64(senddesc23_w0, xmask23);
+ /* Ensuring mbuf fields which got updated in
+ * cnxk_nix_prefree_seg are written before LMTST.
+ */
+ rte_io_wmb();
+ } else {
+ /* Move mbufs to iova */
+ mbuf0 = (uint64_t *)tx_pkts[0];
+ mbuf1 = (uint64_t *)tx_pkts[1];
+ mbuf2 = (uint64_t *)tx_pkts[2];
+ mbuf3 = (uint64_t *)tx_pkts[3];
+
+ /* Mark mempool object as "put" since
+ * it is freed by NIX
+ */
+ __mempool_check_cookies(
+ ((struct rte_mbuf *)mbuf0)->pool,
+ (void **)&mbuf0, 1, 0);
+
+ __mempool_check_cookies(
+ ((struct rte_mbuf *)mbuf1)->pool,
+ (void **)&mbuf1, 1, 0);
+
+ __mempool_check_cookies(
+ ((struct rte_mbuf *)mbuf2)->pool,
+ (void **)&mbuf2, 1, 0);
+
+ __mempool_check_cookies(
+ ((struct rte_mbuf *)mbuf3)->pool,
+ (void **)&mbuf3, 1, 0);
+#ifdef RTE_LIBRTE_MEMPOOL_DEBUG
+ rte_io_wmb();
+#endif
+ }
+
+ /* Create 4W cmd for 4 mbufs (sendhdr, sgdesc) */
+ cmd0[0] = vzip1q_u64(senddesc01_w0, senddesc01_w1);
+ cmd0[1] = vzip2q_u64(senddesc01_w0, senddesc01_w1);
+ cmd0[2] = vzip1q_u64(senddesc23_w0, senddesc23_w1);
+ cmd0[3] = vzip2q_u64(senddesc23_w0, senddesc23_w1);
+
+ cmd1[0] = vzip1q_u64(sgdesc01_w0, sgdesc01_w1);
+ cmd1[1] = vzip2q_u64(sgdesc01_w0, sgdesc01_w1);
+ cmd1[2] = vzip1q_u64(sgdesc23_w0, sgdesc23_w1);
+ cmd1[3] = vzip2q_u64(sgdesc23_w0, sgdesc23_w1);
+
+ do {
+ vst1q_u64(lmt_addr, cmd0[0]);
+ vst1q_u64(lmt_addr + 2, cmd1[0]);
+ vst1q_u64(lmt_addr + 4, cmd0[1]);
+ vst1q_u64(lmt_addr + 6, cmd1[1]);
+ vst1q_u64(lmt_addr + 8, cmd0[2]);
+ vst1q_u64(lmt_addr + 10, cmd1[2]);
+ vst1q_u64(lmt_addr + 12, cmd0[3]);
+ vst1q_u64(lmt_addr + 14, cmd1[3]);
+ lmt_status = roc_lmt_submit_ldeor(io_addr);
+ } while (lmt_status == 0);
+ tx_pkts = tx_pkts + NIX_DESCS_PER_LOOP;
+ }
+
+ if (unlikely(pkts_left))
+ pkts += cn9k_nix_xmit_pkts(tx_queue, tx_pkts, pkts_left, cmd,
+ flags);
+
+ return pkts;
+}
+
+#else
+static __rte_always_inline uint16_t
+cn9k_nix_xmit_pkts_vector(void *tx_queue, struct rte_mbuf **tx_pkts,
+ uint16_t pkts, uint64_t *cmd, const uint16_t flags)
+{
+ RTE_SET_USED(tx_queue);
+ RTE_SET_USED(tx_pkts);
+ RTE_SET_USED(pkts);
+ RTE_SET_USED(cmd);
+ RTE_SET_USED(flags);
+ return 0;
+}
+#endif
+
#define L3L4CSUM_F NIX_TX_OFFLOAD_L3_L4_CSUM_F
#define OL3OL4CSUM_F NIX_TX_OFFLOAD_OL3_OL4_CSUM_F
#define VLAN_F NIX_TX_OFFLOAD_VLAN_QINQ_F
#define T(name, f4, f3, f2, f1, f0, sz, flags) \
uint16_t __rte_noinline __rte_hot cn9k_nix_xmit_pkts_##name( \
+ void *tx_queue, struct rte_mbuf **tx_pkts, uint16_t pkts); \
+ \
+ uint16_t __rte_noinline __rte_hot cn9k_nix_xmit_pkts_mseg_##name( \
+ void *tx_queue, struct rte_mbuf **tx_pkts, uint16_t pkts); \
+ \
+ uint16_t __rte_noinline __rte_hot cn9k_nix_xmit_pkts_vec_##name( \
void *tx_queue, struct rte_mbuf **tx_pkts, uint16_t pkts);
NIX_TX_FASTPATH_MODES
git.droids-corp.org / dpdk.git / blobdiff