/* SPDX-License-Identifier: BSD-3-Clause
* Copyright(C) 2019 Marvell International Ltd.
*/
+
+#include <inttypes.h>
+#include <math.h>
+
+#include <rte_ethdev_pci.h>
+#include <rte_io.h>
+#include <rte_malloc.h>
+#include <rte_mbuf.h>
+#include <rte_mbuf_pool_ops.h>
+#include <rte_mempool.h>
+
+#include "otx2_ethdev.h"
+
+static inline void
+otx2_eth_set_rx_function(struct rte_eth_dev *eth_dev)
+{
+ RTE_SET_USED(eth_dev);
+}
+
+static inline void
+otx2_eth_set_tx_function(struct rte_eth_dev *eth_dev)
+{
+ RTE_SET_USED(eth_dev);
+}
+
+static inline uint64_t
+nix_get_rx_offload_capa(struct otx2_eth_dev *dev)
+{
+ uint64_t capa = NIX_RX_OFFLOAD_CAPA;
+
+ if (otx2_dev_is_vf(dev))
+ capa &= ~DEV_RX_OFFLOAD_TIMESTAMP;
+
+ return capa;
+}
+
+static inline uint64_t
+nix_get_tx_offload_capa(struct otx2_eth_dev *dev)
+{
+ RTE_SET_USED(dev);
+
+ return NIX_TX_OFFLOAD_CAPA;
+}
+
+static const struct otx2_dev_ops otx2_dev_ops = {
+ .link_status_update = otx2_eth_dev_link_status_update,
+};
+
+static int
+nix_lf_alloc(struct otx2_eth_dev *dev, uint32_t nb_rxq, uint32_t nb_txq)
+{
+ struct otx2_mbox *mbox = dev->mbox;
+ struct nix_lf_alloc_req *req;
+ struct nix_lf_alloc_rsp *rsp;
+ int rc;
+
+ req = otx2_mbox_alloc_msg_nix_lf_alloc(mbox);
+ req->rq_cnt = nb_rxq;
+ req->sq_cnt = nb_txq;
+ req->cq_cnt = nb_rxq;
+ /* XQE_SZ should be in Sync with NIX_CQ_ENTRY_SZ */
+ RTE_BUILD_BUG_ON(NIX_CQ_ENTRY_SZ != 128);
+ req->xqe_sz = NIX_XQESZ_W16;
+ req->rss_sz = dev->rss_info.rss_size;
+ req->rss_grps = NIX_RSS_GRPS;
+ req->npa_func = otx2_npa_pf_func_get();
+ req->sso_func = otx2_sso_pf_func_get();
+ req->rx_cfg = BIT_ULL(35 /* DIS_APAD */);
+ if (dev->rx_offloads & (DEV_RX_OFFLOAD_TCP_CKSUM |
+ DEV_RX_OFFLOAD_UDP_CKSUM)) {
+ req->rx_cfg |= BIT_ULL(37 /* CSUM_OL4 */);
+ req->rx_cfg |= BIT_ULL(36 /* CSUM_IL4 */);
+ }
+
+ rc = otx2_mbox_process_msg(mbox, (void *)&rsp);
+ if (rc)
+ return rc;
+
+ dev->sqb_size = rsp->sqb_size;
+ dev->tx_chan_base = rsp->tx_chan_base;
+ dev->rx_chan_base = rsp->rx_chan_base;
+ dev->rx_chan_cnt = rsp->rx_chan_cnt;
+ dev->tx_chan_cnt = rsp->tx_chan_cnt;
+ dev->lso_tsov4_idx = rsp->lso_tsov4_idx;
+ dev->lso_tsov6_idx = rsp->lso_tsov6_idx;
+ dev->lf_tx_stats = rsp->lf_tx_stats;
+ dev->lf_rx_stats = rsp->lf_rx_stats;
+ dev->cints = rsp->cints;
+ dev->qints = rsp->qints;
+ dev->npc_flow.channel = dev->rx_chan_base;
+
+ return 0;
+}
+
+static int
+nix_lf_free(struct otx2_eth_dev *dev)
+{
+ struct otx2_mbox *mbox = dev->mbox;
+ struct nix_lf_free_req *req;
+ struct ndc_sync_op *ndc_req;
+ int rc;
+
+ /* Sync NDC-NIX for LF */
+ ndc_req = otx2_mbox_alloc_msg_ndc_sync_op(mbox);
+ ndc_req->nix_lf_tx_sync = 1;
+ ndc_req->nix_lf_rx_sync = 1;
+ rc = otx2_mbox_process(mbox);
+ if (rc)
+ otx2_err("Error on NDC-NIX-[TX, RX] LF sync, rc %d", rc);
+
+ req = otx2_mbox_alloc_msg_nix_lf_free(mbox);
+ /* Let AF driver free all this nix lf's
+ * NPC entries allocated using NPC MBOX.
+ */
+ req->flags = 0;
+
+ return otx2_mbox_process(mbox);
+}
+
+int
+otx2_cgx_rxtx_start(struct otx2_eth_dev *dev)
+{
+ struct otx2_mbox *mbox = dev->mbox;
+
+ if (otx2_dev_is_vf(dev))
+ return 0;
+
+ otx2_mbox_alloc_msg_cgx_start_rxtx(mbox);
+
+ return otx2_mbox_process(mbox);
+}
+
+int
+otx2_cgx_rxtx_stop(struct otx2_eth_dev *dev)
+{
+ struct otx2_mbox *mbox = dev->mbox;
+
+ if (otx2_dev_is_vf(dev))
+ return 0;
+
+ otx2_mbox_alloc_msg_cgx_stop_rxtx(mbox);
+
+ return otx2_mbox_process(mbox);
+}
+
+static inline void
+nix_rx_queue_reset(struct otx2_eth_rxq *rxq)
+{
+ rxq->head = 0;
+ rxq->available = 0;
+}
+
+static inline uint32_t
+nix_qsize_to_val(enum nix_q_size_e qsize)
+{
+ return (16UL << (qsize * 2));
+}
+
+static inline enum nix_q_size_e
+nix_qsize_clampup_get(struct otx2_eth_dev *dev, uint32_t val)
+{
+ int i;
+
+ if (otx2_ethdev_fixup_is_min_4k_q(dev))
+ i = nix_q_size_4K;
+ else
+ i = nix_q_size_16;
+
+ for (; i < nix_q_size_max; i++)
+ if (val <= nix_qsize_to_val(i))
+ break;
+
+ if (i >= nix_q_size_max)
+ i = nix_q_size_max - 1;
+
+ return i;
+}
+
+static int
+nix_cq_rq_init(struct rte_eth_dev *eth_dev, struct otx2_eth_dev *dev,
+ uint16_t qid, struct otx2_eth_rxq *rxq, struct rte_mempool *mp)
+{
+ struct otx2_mbox *mbox = dev->mbox;
+ const struct rte_memzone *rz;
+ uint32_t ring_size, cq_size;
+ struct nix_aq_enq_req *aq;
+ uint16_t first_skip;
+ int rc;
+
+ cq_size = rxq->qlen;
+ ring_size = cq_size * NIX_CQ_ENTRY_SZ;
+ rz = rte_eth_dma_zone_reserve(eth_dev, "cq", qid, ring_size,
+ NIX_CQ_ALIGN, dev->node);
+ if (rz == NULL) {
+ otx2_err("Failed to allocate mem for cq hw ring");
+ rc = -ENOMEM;
+ goto fail;
+ }
+ memset(rz->addr, 0, rz->len);
+ rxq->desc = (uintptr_t)rz->addr;
+ rxq->qmask = cq_size - 1;
+
+ aq = otx2_mbox_alloc_msg_nix_aq_enq(mbox);
+ aq->qidx = qid;
+ aq->ctype = NIX_AQ_CTYPE_CQ;
+ aq->op = NIX_AQ_INSTOP_INIT;
+
+ aq->cq.ena = 1;
+ aq->cq.caching = 1;
+ aq->cq.qsize = rxq->qsize;
+ aq->cq.base = rz->iova;
+ aq->cq.avg_level = 0xff;
+ aq->cq.cq_err_int_ena = BIT(NIX_CQERRINT_CQE_FAULT);
+ aq->cq.cq_err_int_ena |= BIT(NIX_CQERRINT_DOOR_ERR);
+
+ /* TX pause frames enable flowctrl on RX side */
+ if (dev->fc_info.tx_pause) {
+ /* Single bpid is allocated for all rx channels for now */
+ aq->cq.bpid = dev->fc_info.bpid[0];
+ aq->cq.bp = NIX_CQ_BP_LEVEL;
+ aq->cq.bp_ena = 1;
+ }
+
+ /* Many to one reduction */
+ aq->cq.qint_idx = qid % dev->qints;
+
+ if (otx2_ethdev_fixup_is_limit_cq_full(dev)) {
+ uint16_t min_rx_drop;
+ const float rx_cq_skid = 1024 * 256;
+
+ min_rx_drop = ceil(rx_cq_skid / (float)cq_size);
+ aq->cq.drop = min_rx_drop;
+ aq->cq.drop_ena = 1;
+ }
+
+ rc = otx2_mbox_process(mbox);
+ if (rc) {
+ otx2_err("Failed to init cq context");
+ goto fail;
+ }
+
+ aq = otx2_mbox_alloc_msg_nix_aq_enq(mbox);
+ aq->qidx = qid;
+ aq->ctype = NIX_AQ_CTYPE_RQ;
+ aq->op = NIX_AQ_INSTOP_INIT;
+
+ aq->rq.sso_ena = 0;
+ aq->rq.cq = qid; /* RQ to CQ 1:1 mapped */
+ aq->rq.spb_ena = 0;
+ aq->rq.lpb_aura = npa_lf_aura_handle_to_aura(mp->pool_id);
+ first_skip = (sizeof(struct rte_mbuf));
+ first_skip += RTE_PKTMBUF_HEADROOM;
+ first_skip += rte_pktmbuf_priv_size(mp);
+ rxq->data_off = first_skip;
+
+ first_skip /= 8; /* Expressed in number of dwords */
+ aq->rq.first_skip = first_skip;
+ aq->rq.later_skip = (sizeof(struct rte_mbuf) / 8);
+ aq->rq.flow_tagw = 32; /* 32-bits */
+ aq->rq.lpb_sizem1 = rte_pktmbuf_data_room_size(mp);
+ aq->rq.lpb_sizem1 += rte_pktmbuf_priv_size(mp);
+ aq->rq.lpb_sizem1 += sizeof(struct rte_mbuf);
+ aq->rq.lpb_sizem1 /= 8;
+ aq->rq.lpb_sizem1 -= 1; /* Expressed in size minus one */
+ aq->rq.ena = 1;
+ aq->rq.pb_caching = 0x2; /* First cache aligned block to LLC */
+ aq->rq.xqe_imm_size = 0; /* No pkt data copy to CQE */
+ aq->rq.rq_int_ena = 0;
+ /* Many to one reduction */
+ aq->rq.qint_idx = qid % dev->qints;
+
+ if (otx2_ethdev_fixup_is_limit_cq_full(dev))
+ aq->rq.xqe_drop_ena = 1;
+
+ rc = otx2_mbox_process(mbox);
+ if (rc) {
+ otx2_err("Failed to init rq context");
+ goto fail;
+ }
+
+ return 0;
+fail:
+ return rc;
+}
+
+static int
+nix_rq_enb_dis(struct rte_eth_dev *eth_dev,
+ struct otx2_eth_rxq *rxq, const bool enb)
+{
+ struct otx2_eth_dev *dev = otx2_eth_pmd_priv(eth_dev);
+ struct otx2_mbox *mbox = dev->mbox;
+ struct nix_aq_enq_req *aq;
+
+ /* Pkts will be dropped silently if RQ is disabled */
+ aq = otx2_mbox_alloc_msg_nix_aq_enq(mbox);
+ aq->qidx = rxq->rq;
+ aq->ctype = NIX_AQ_CTYPE_RQ;
+ aq->op = NIX_AQ_INSTOP_WRITE;
+
+ aq->rq.ena = enb;
+ aq->rq_mask.ena = ~(aq->rq_mask.ena);
+
+ return otx2_mbox_process(mbox);
+}
+
+static int
+nix_cq_rq_uninit(struct rte_eth_dev *eth_dev, struct otx2_eth_rxq *rxq)
+{
+ struct otx2_eth_dev *dev = otx2_eth_pmd_priv(eth_dev);
+ struct otx2_mbox *mbox = dev->mbox;
+ struct nix_aq_enq_req *aq;
+ int rc;
+
+ /* RQ is already disabled */
+ /* Disable CQ */
+ aq = otx2_mbox_alloc_msg_nix_aq_enq(mbox);
+ aq->qidx = rxq->rq;
+ aq->ctype = NIX_AQ_CTYPE_CQ;
+ aq->op = NIX_AQ_INSTOP_WRITE;
+
+ aq->cq.ena = 0;
+ aq->cq_mask.ena = ~(aq->cq_mask.ena);
+
+ rc = otx2_mbox_process(mbox);
+ if (rc < 0) {
+ otx2_err("Failed to disable cq context");
+ return rc;
+ }
+
+ return 0;
+}
+
+static inline int
+nix_get_data_off(struct otx2_eth_dev *dev)
+{
+ return otx2_ethdev_is_ptp_en(dev) ? NIX_TIMESYNC_RX_OFFSET : 0;
+}
+
+uint64_t
+otx2_nix_rxq_mbuf_setup(struct otx2_eth_dev *dev, uint16_t port_id)
+{
+ struct rte_mbuf mb_def;
+ uint64_t *tmp;
+
+ RTE_BUILD_BUG_ON(offsetof(struct rte_mbuf, data_off) % 8 != 0);
+ RTE_BUILD_BUG_ON(offsetof(struct rte_mbuf, refcnt) -
+ offsetof(struct rte_mbuf, data_off) != 2);
+ RTE_BUILD_BUG_ON(offsetof(struct rte_mbuf, nb_segs) -
+ offsetof(struct rte_mbuf, data_off) != 4);
+ RTE_BUILD_BUG_ON(offsetof(struct rte_mbuf, port) -
+ offsetof(struct rte_mbuf, data_off) != 6);
+ mb_def.nb_segs = 1;
+ mb_def.data_off = RTE_PKTMBUF_HEADROOM + nix_get_data_off(dev);
+ mb_def.port = port_id;
+ rte_mbuf_refcnt_set(&mb_def, 1);
+
+ /* Prevent compiler reordering: rearm_data covers previous fields */
+ rte_compiler_barrier();
+ tmp = (uint64_t *)&mb_def.rearm_data;
+
+ return *tmp;
+}
+
+static void
+otx2_nix_rx_queue_release(void *rx_queue)
+{
+ struct otx2_eth_rxq *rxq = rx_queue;
+
+ if (!rxq)
+ return;
+
+ otx2_nix_dbg("Releasing rxq %u", rxq->rq);
+ nix_cq_rq_uninit(rxq->eth_dev, rxq);
+ rte_free(rx_queue);
+}
+
+static int
+otx2_nix_rx_queue_setup(struct rte_eth_dev *eth_dev, uint16_t rq,
+ uint16_t nb_desc, unsigned int socket,
+ const struct rte_eth_rxconf *rx_conf,
+ struct rte_mempool *mp)
+{
+ struct otx2_eth_dev *dev = otx2_eth_pmd_priv(eth_dev);
+ struct rte_mempool_ops *ops;
+ struct otx2_eth_rxq *rxq;
+ const char *platform_ops;
+ enum nix_q_size_e qsize;
+ uint64_t offloads;
+ int rc;
+
+ rc = -EINVAL;
+
+ /* Compile time check to make sure all fast path elements in a CL */
+ RTE_BUILD_BUG_ON(offsetof(struct otx2_eth_rxq, slow_path_start) >= 128);
+
+ /* Sanity checks */
+ if (rx_conf->rx_deferred_start == 1) {
+ otx2_err("Deferred Rx start is not supported");
+ goto fail;
+ }
+
+ platform_ops = rte_mbuf_platform_mempool_ops();
+ /* This driver needs octeontx2_npa mempool ops to work */
+ ops = rte_mempool_get_ops(mp->ops_index);
+ if (strncmp(ops->name, platform_ops, RTE_MEMPOOL_OPS_NAMESIZE)) {
+ otx2_err("mempool ops should be of octeontx2_npa type");
+ goto fail;
+ }
+
+ if (mp->pool_id == 0) {
+ otx2_err("Invalid pool_id");
+ goto fail;
+ }
+
+ /* Free memory prior to re-allocation if needed */
+ if (eth_dev->data->rx_queues[rq] != NULL) {
+ otx2_nix_dbg("Freeing memory prior to re-allocation %d", rq);
+ otx2_nix_rx_queue_release(eth_dev->data->rx_queues[rq]);
+ eth_dev->data->rx_queues[rq] = NULL;
+ }
+
+ offloads = rx_conf->offloads | eth_dev->data->dev_conf.rxmode.offloads;
+ dev->rx_offloads |= offloads;
+
+ /* Find the CQ queue size */
+ qsize = nix_qsize_clampup_get(dev, nb_desc);
+ /* Allocate rxq memory */
+ rxq = rte_zmalloc_socket("otx2 rxq", sizeof(*rxq), OTX2_ALIGN, socket);
+ if (rxq == NULL) {
+ otx2_err("Failed to allocate rq=%d", rq);
+ rc = -ENOMEM;
+ goto fail;
+ }
+
+ rxq->eth_dev = eth_dev;
+ rxq->rq = rq;
+ rxq->cq_door = dev->base + NIX_LF_CQ_OP_DOOR;
+ rxq->cq_status = (int64_t *)(dev->base + NIX_LF_CQ_OP_STATUS);
+ rxq->wdata = (uint64_t)rq << 32;
+ rxq->aura = npa_lf_aura_handle_to_aura(mp->pool_id);
+ rxq->mbuf_initializer = otx2_nix_rxq_mbuf_setup(dev,
+ eth_dev->data->port_id);
+ rxq->offloads = offloads;
+ rxq->pool = mp;
+ rxq->qlen = nix_qsize_to_val(qsize);
+ rxq->qsize = qsize;
+ rxq->lookup_mem = otx2_nix_fastpath_lookup_mem_get();
+ rxq->tstamp = &dev->tstamp;
+
+ /* Alloc completion queue */
+ rc = nix_cq_rq_init(eth_dev, dev, rq, rxq, mp);
+ if (rc) {
+ otx2_err("Failed to allocate rxq=%u", rq);
+ goto free_rxq;
+ }
+
+ rxq->qconf.socket_id = socket;
+ rxq->qconf.nb_desc = nb_desc;
+ rxq->qconf.mempool = mp;
+ memcpy(&rxq->qconf.conf.rx, rx_conf, sizeof(struct rte_eth_rxconf));
+
+ nix_rx_queue_reset(rxq);
+ otx2_nix_dbg("rq=%d pool=%s qsize=%d nb_desc=%d->%d",
+ rq, mp->name, qsize, nb_desc, rxq->qlen);
+
+ eth_dev->data->rx_queues[rq] = rxq;
+ eth_dev->data->rx_queue_state[rq] = RTE_ETH_QUEUE_STATE_STOPPED;
+ return 0;
+
+free_rxq:
+ otx2_nix_rx_queue_release(rxq);
+fail:
+ return rc;
+}
+
+static inline uint8_t
+nix_sq_max_sqe_sz(struct otx2_eth_txq *txq)
+{
+ /*
+ * Maximum three segments can be supported with W8, Choose
+ * NIX_MAXSQESZ_W16 for multi segment offload.
+ */
+ if (txq->offloads & DEV_TX_OFFLOAD_MULTI_SEGS)
+ return NIX_MAXSQESZ_W16;
+ else
+ return NIX_MAXSQESZ_W8;
+}
+
+static int
+nix_sq_init(struct otx2_eth_txq *txq)
+{
+ struct otx2_eth_dev *dev = txq->dev;
+ struct otx2_mbox *mbox = dev->mbox;
+ struct nix_aq_enq_req *sq;
+ uint32_t rr_quantum;
+ uint16_t smq;
+ int rc;
+
+ if (txq->sqb_pool->pool_id == 0)
+ return -EINVAL;
+
+ rc = otx2_nix_tm_get_leaf_data(dev, txq->sq, &rr_quantum, &smq);
+ if (rc) {
+ otx2_err("Failed to get sq->smq(leaf node), rc=%d", rc);
+ return rc;
+ }
+
+ sq = otx2_mbox_alloc_msg_nix_aq_enq(mbox);
+ sq->qidx = txq->sq;
+ sq->ctype = NIX_AQ_CTYPE_SQ;
+ sq->op = NIX_AQ_INSTOP_INIT;
+ sq->sq.max_sqe_size = nix_sq_max_sqe_sz(txq);
+
+ sq->sq.smq = smq;
+ sq->sq.smq_rr_quantum = rr_quantum;
+ sq->sq.default_chan = dev->tx_chan_base;
+ sq->sq.sqe_stype = NIX_STYPE_STF;
+ sq->sq.ena = 1;
+ if (sq->sq.max_sqe_size == NIX_MAXSQESZ_W8)
+ sq->sq.sqe_stype = NIX_STYPE_STP;
+ sq->sq.sqb_aura =
+ npa_lf_aura_handle_to_aura(txq->sqb_pool->pool_id);
+ sq->sq.sq_int_ena = BIT(NIX_SQINT_LMT_ERR);
+ sq->sq.sq_int_ena |= BIT(NIX_SQINT_SQB_ALLOC_FAIL);
+ sq->sq.sq_int_ena |= BIT(NIX_SQINT_SEND_ERR);
+ sq->sq.sq_int_ena |= BIT(NIX_SQINT_MNQ_ERR);
+
+ /* Many to one reduction */
+ sq->sq.qint_idx = txq->sq % dev->qints;
+
+ return otx2_mbox_process(mbox);
+}
+
+static int
+nix_sq_uninit(struct otx2_eth_txq *txq)
+{
+ struct otx2_eth_dev *dev = txq->dev;
+ struct otx2_mbox *mbox = dev->mbox;
+ struct ndc_sync_op *ndc_req;
+ struct nix_aq_enq_rsp *rsp;
+ struct nix_aq_enq_req *aq;
+ uint16_t sqes_per_sqb;
+ void *sqb_buf;
+ int rc, count;
+
+ otx2_nix_dbg("Cleaning up sq %u", txq->sq);
+
+ aq = otx2_mbox_alloc_msg_nix_aq_enq(mbox);
+ aq->qidx = txq->sq;
+ aq->ctype = NIX_AQ_CTYPE_SQ;
+ aq->op = NIX_AQ_INSTOP_READ;
+
+ rc = otx2_mbox_process_msg(mbox, (void *)&rsp);
+ if (rc)
+ return rc;
+
+ /* Check if sq is already cleaned up */
+ if (!rsp->sq.ena)
+ return 0;
+
+ /* Disable sq */
+ aq = otx2_mbox_alloc_msg_nix_aq_enq(mbox);
+ aq->qidx = txq->sq;
+ aq->ctype = NIX_AQ_CTYPE_SQ;
+ aq->op = NIX_AQ_INSTOP_WRITE;
+
+ aq->sq_mask.ena = ~aq->sq_mask.ena;
+ aq->sq.ena = 0;
+
+ rc = otx2_mbox_process(mbox);
+ if (rc)
+ return rc;
+
+ /* Read SQ and free sqb's */
+ aq = otx2_mbox_alloc_msg_nix_aq_enq(mbox);
+ aq->qidx = txq->sq;
+ aq->ctype = NIX_AQ_CTYPE_SQ;
+ aq->op = NIX_AQ_INSTOP_READ;
+
+ rc = otx2_mbox_process_msg(mbox, (void *)&rsp);
+ if (rc)
+ return rc;
+
+ if (aq->sq.smq_pend)
+ otx2_err("SQ has pending sqe's");
+
+ count = aq->sq.sqb_count;
+ sqes_per_sqb = 1 << txq->sqes_per_sqb_log2;
+ /* Free SQB's that are used */
+ sqb_buf = (void *)rsp->sq.head_sqb;
+ while (count) {
+ void *next_sqb;
+
+ next_sqb = *(void **)((uintptr_t)sqb_buf + ((sqes_per_sqb - 1) *
+ nix_sq_max_sqe_sz(txq)));
+ npa_lf_aura_op_free(txq->sqb_pool->pool_id, 1,
+ (uint64_t)sqb_buf);
+ sqb_buf = next_sqb;
+ count--;
+ }
+
+ /* Free next to use sqb */
+ if (rsp->sq.next_sqb)
+ npa_lf_aura_op_free(txq->sqb_pool->pool_id, 1,
+ rsp->sq.next_sqb);
+
+ /* Sync NDC-NIX-TX for LF */
+ ndc_req = otx2_mbox_alloc_msg_ndc_sync_op(mbox);
+ ndc_req->nix_lf_tx_sync = 1;
+ rc = otx2_mbox_process(mbox);
+ if (rc)
+ otx2_err("Error on NDC-NIX-TX LF sync, rc %d", rc);
+
+ return rc;
+}
+
+static int
+nix_sqb_aura_limit_cfg(struct rte_mempool *mp, uint16_t nb_sqb_bufs)
+{
+ struct otx2_npa_lf *npa_lf = otx2_intra_dev_get_cfg()->npa_lf;
+ struct npa_aq_enq_req *aura_req;
+
+ aura_req = otx2_mbox_alloc_msg_npa_aq_enq(npa_lf->mbox);
+ aura_req->aura_id = npa_lf_aura_handle_to_aura(mp->pool_id);
+ aura_req->ctype = NPA_AQ_CTYPE_AURA;
+ aura_req->op = NPA_AQ_INSTOP_WRITE;
+
+ aura_req->aura.limit = nb_sqb_bufs;
+ aura_req->aura_mask.limit = ~(aura_req->aura_mask.limit);
+
+ return otx2_mbox_process(npa_lf->mbox);
+}
+
+static int
+nix_alloc_sqb_pool(int port, struct otx2_eth_txq *txq, uint16_t nb_desc)
+{
+ struct otx2_eth_dev *dev = txq->dev;
+ uint16_t sqes_per_sqb, nb_sqb_bufs;
+ char name[RTE_MEMPOOL_NAMESIZE];
+ struct rte_mempool_objsz sz;
+ struct npa_aura_s *aura;
+ uint32_t tmp, blk_sz;
+
+ aura = (struct npa_aura_s *)((uintptr_t)txq->fc_mem + OTX2_ALIGN);
+ snprintf(name, sizeof(name), "otx2_sqb_pool_%d_%d", port, txq->sq);
+ blk_sz = dev->sqb_size;
+
+ if (nix_sq_max_sqe_sz(txq) == NIX_MAXSQESZ_W16)
+ sqes_per_sqb = (dev->sqb_size / 8) / 16;
+ else
+ sqes_per_sqb = (dev->sqb_size / 8) / 8;
+
+ nb_sqb_bufs = nb_desc / sqes_per_sqb;
+ /* Clamp up to devarg passed SQB count */
+ nb_sqb_bufs = RTE_MIN(dev->max_sqb_count, RTE_MAX(NIX_MIN_SQB,
+ nb_sqb_bufs + NIX_SQB_LIST_SPACE));
+
+ txq->sqb_pool = rte_mempool_create_empty(name, NIX_MAX_SQB, blk_sz,
+ 0, 0, dev->node,
+ MEMPOOL_F_NO_SPREAD);
+ txq->nb_sqb_bufs = nb_sqb_bufs;
+ txq->sqes_per_sqb_log2 = (uint16_t)rte_log2_u32(sqes_per_sqb);
+ txq->nb_sqb_bufs_adj = nb_sqb_bufs -
+ RTE_ALIGN_MUL_CEIL(nb_sqb_bufs, sqes_per_sqb) / sqes_per_sqb;
+ txq->nb_sqb_bufs_adj =
+ (NIX_SQB_LOWER_THRESH * txq->nb_sqb_bufs_adj) / 100;
+
+ if (txq->sqb_pool == NULL) {
+ otx2_err("Failed to allocate sqe mempool");
+ goto fail;
+ }
+
+ memset(aura, 0, sizeof(*aura));
+ aura->fc_ena = 1;
+ aura->fc_addr = txq->fc_iova;
+ aura->fc_hyst_bits = 0; /* Store count on all updates */
+ if (rte_mempool_set_ops_byname(txq->sqb_pool, "octeontx2_npa", aura)) {
+ otx2_err("Failed to set ops for sqe mempool");
+ goto fail;
+ }
+ if (rte_mempool_populate_default(txq->sqb_pool) < 0) {
+ otx2_err("Failed to populate sqe mempool");
+ goto fail;
+ }
+
+ tmp = rte_mempool_calc_obj_size(blk_sz, MEMPOOL_F_NO_SPREAD, &sz);
+ if (dev->sqb_size != sz.elt_size) {
+ otx2_err("sqe pool block size is not expected %d != %d",
+ dev->sqb_size, tmp);
+ goto fail;
+ }
+
+ nix_sqb_aura_limit_cfg(txq->sqb_pool, txq->nb_sqb_bufs);
+
+ return 0;
+fail:
+ return -ENOMEM;
+}
+
+void
+otx2_nix_form_default_desc(struct otx2_eth_txq *txq)
+{
+ struct nix_send_ext_s *send_hdr_ext;
+ struct nix_send_hdr_s *send_hdr;
+ struct nix_send_mem_s *send_mem;
+ union nix_send_sg_s *sg;
+
+ /* Initialize the fields based on basic single segment packet */
+ memset(&txq->cmd, 0, sizeof(txq->cmd));
+
+ if (txq->dev->tx_offload_flags & NIX_TX_NEED_EXT_HDR) {
+ send_hdr = (struct nix_send_hdr_s *)&txq->cmd[0];
+ /* 2(HDR) + 2(EXT_HDR) + 1(SG) + 1(IOVA) = 6/2 - 1 = 2 */
+ send_hdr->w0.sizem1 = 2;
+
+ send_hdr_ext = (struct nix_send_ext_s *)&txq->cmd[2];
+ send_hdr_ext->w0.subdc = NIX_SUBDC_EXT;
+ if (txq->dev->tx_offload_flags & NIX_TX_OFFLOAD_TSTAMP_F) {
+ /* Default: one seg packet would have:
+ * 2(HDR) + 2(EXT) + 1(SG) + 1(IOVA) + 2(MEM)
+ * => 8/2 - 1 = 3
+ */
+ send_hdr->w0.sizem1 = 3;
+ send_hdr_ext->w0.tstmp = 1;
+
+ /* To calculate the offset for send_mem,
+ * send_hdr->w0.sizem1 * 2
+ */
+ send_mem = (struct nix_send_mem_s *)(txq->cmd +
+ (send_hdr->w0.sizem1 << 1));
+ send_mem->subdc = NIX_SUBDC_MEM;
+ send_mem->dsz = 0x0;
+ send_mem->wmem = 0x1;
+ send_mem->alg = NIX_SENDMEMALG_SETTSTMP;
+ send_mem->addr = txq->dev->tstamp.tx_tstamp_iova;
+ }
+ sg = (union nix_send_sg_s *)&txq->cmd[4];
+ } else {
+ send_hdr = (struct nix_send_hdr_s *)&txq->cmd[0];
+ /* 2(HDR) + 1(SG) + 1(IOVA) = 4/2 - 1 = 1 */
+ send_hdr->w0.sizem1 = 1;
+ sg = (union nix_send_sg_s *)&txq->cmd[2];
+ }
+
+ send_hdr->w0.sq = txq->sq;
+ sg->subdc = NIX_SUBDC_SG;
+ sg->segs = 1;
+ sg->ld_type = NIX_SENDLDTYPE_LDD;
+
+ rte_smp_wmb();
+}
+
+static void
+otx2_nix_tx_queue_release(void *_txq)
+{
+ struct otx2_eth_txq *txq = _txq;
+ struct rte_eth_dev *eth_dev;
+
+ if (!txq)
+ return;
+
+ eth_dev = txq->dev->eth_dev;
+
+ otx2_nix_dbg("Releasing txq %u", txq->sq);
+
+ /* Flush and disable tm */
+ otx2_nix_tm_sw_xoff(txq, eth_dev->data->dev_started);
+
+ /* Free sqb's and disable sq */
+ nix_sq_uninit(txq);
+
+ if (txq->sqb_pool) {
+ rte_mempool_free(txq->sqb_pool);
+ txq->sqb_pool = NULL;
+ }
+ rte_free(txq);
+}
+
+
+static int
+otx2_nix_tx_queue_setup(struct rte_eth_dev *eth_dev, uint16_t sq,
+ uint16_t nb_desc, unsigned int socket_id,
+ const struct rte_eth_txconf *tx_conf)
+{
+ struct otx2_eth_dev *dev = otx2_eth_pmd_priv(eth_dev);
+ const struct rte_memzone *fc;
+ struct otx2_eth_txq *txq;
+ uint64_t offloads;
+ int rc;
+
+ rc = -EINVAL;
+
+ /* Compile time check to make sure all fast path elements in a CL */
+ RTE_BUILD_BUG_ON(offsetof(struct otx2_eth_txq, slow_path_start) >= 128);
+
+ if (tx_conf->tx_deferred_start) {
+ otx2_err("Tx deferred start is not supported");
+ goto fail;
+ }
+
+ /* Free memory prior to re-allocation if needed. */
+ if (eth_dev->data->tx_queues[sq] != NULL) {
+ otx2_nix_dbg("Freeing memory prior to re-allocation %d", sq);
+ otx2_nix_tx_queue_release(eth_dev->data->tx_queues[sq]);
+ eth_dev->data->tx_queues[sq] = NULL;
+ }
+
+ /* Find the expected offloads for this queue */
+ offloads = tx_conf->offloads | eth_dev->data->dev_conf.txmode.offloads;
+
+ /* Allocating tx queue data structure */
+ txq = rte_zmalloc_socket("otx2_ethdev TX queue", sizeof(*txq),
+ OTX2_ALIGN, socket_id);
+ if (txq == NULL) {
+ otx2_err("Failed to alloc txq=%d", sq);
+ rc = -ENOMEM;
+ goto fail;
+ }
+ txq->sq = sq;
+ txq->dev = dev;
+ txq->sqb_pool = NULL;
+ txq->offloads = offloads;
+ dev->tx_offloads |= offloads;
+
+ /*
+ * Allocate memory for flow control updates from HW.
+ * Alloc one cache line, so that fits all FC_STYPE modes.
+ */
+ fc = rte_eth_dma_zone_reserve(eth_dev, "fcmem", sq,
+ OTX2_ALIGN + sizeof(struct npa_aura_s),
+ OTX2_ALIGN, dev->node);
+ if (fc == NULL) {
+ otx2_err("Failed to allocate mem for fcmem");
+ rc = -ENOMEM;
+ goto free_txq;
+ }
+ txq->fc_iova = fc->iova;
+ txq->fc_mem = fc->addr;
+
+ /* Initialize the aura sqb pool */
+ rc = nix_alloc_sqb_pool(eth_dev->data->port_id, txq, nb_desc);
+ if (rc) {
+ otx2_err("Failed to alloc sqe pool rc=%d", rc);
+ goto free_txq;
+ }
+
+ /* Initialize the SQ */
+ rc = nix_sq_init(txq);
+ if (rc) {
+ otx2_err("Failed to init sq=%d context", sq);
+ goto free_txq;
+ }
+
+ txq->fc_cache_pkts = 0;
+ txq->io_addr = dev->base + NIX_LF_OP_SENDX(0);
+ /* Evenly distribute LMT slot for each sq */
+ txq->lmt_addr = (void *)(dev->lmt_addr + ((sq & LMT_SLOT_MASK) << 12));
+
+ txq->qconf.socket_id = socket_id;
+ txq->qconf.nb_desc = nb_desc;
+ memcpy(&txq->qconf.conf.tx, tx_conf, sizeof(struct rte_eth_txconf));
+
+ otx2_nix_form_default_desc(txq);
+
+ otx2_nix_dbg("sq=%d fc=%p offload=0x%" PRIx64 " sqb=0x%" PRIx64 ""
+ " lmt_addr=%p nb_sqb_bufs=%d sqes_per_sqb_log2=%d", sq,
+ fc->addr, offloads, txq->sqb_pool->pool_id, txq->lmt_addr,
+ txq->nb_sqb_bufs, txq->sqes_per_sqb_log2);
+ eth_dev->data->tx_queues[sq] = txq;
+ eth_dev->data->tx_queue_state[sq] = RTE_ETH_QUEUE_STATE_STOPPED;
+ return 0;
+
+free_txq:
+ otx2_nix_tx_queue_release(txq);
+fail:
+ return rc;
+}
+
+static int
+nix_store_queue_cfg_and_then_release(struct rte_eth_dev *eth_dev)
+{
+ struct otx2_eth_dev *dev = otx2_eth_pmd_priv(eth_dev);
+ struct otx2_eth_qconf *tx_qconf = NULL;
+ struct otx2_eth_qconf *rx_qconf = NULL;
+ struct otx2_eth_txq **txq;
+ struct otx2_eth_rxq **rxq;
+ int i, nb_rxq, nb_txq;
+
+ nb_rxq = RTE_MIN(dev->configured_nb_rx_qs, eth_dev->data->nb_rx_queues);
+ nb_txq = RTE_MIN(dev->configured_nb_tx_qs, eth_dev->data->nb_tx_queues);
+
+ tx_qconf = malloc(nb_txq * sizeof(*tx_qconf));
+ if (tx_qconf == NULL) {
+ otx2_err("Failed to allocate memory for tx_qconf");
+ goto fail;
+ }
+
+ rx_qconf = malloc(nb_rxq * sizeof(*rx_qconf));
+ if (rx_qconf == NULL) {
+ otx2_err("Failed to allocate memory for rx_qconf");
+ goto fail;
+ }
+
+ txq = (struct otx2_eth_txq **)eth_dev->data->tx_queues;
+ for (i = 0; i < nb_txq; i++) {
+ if (txq[i] == NULL) {
+ otx2_err("txq[%d] is already released", i);
+ goto fail;
+ }
+ memcpy(&tx_qconf[i], &txq[i]->qconf, sizeof(*tx_qconf));
+ otx2_nix_tx_queue_release(txq[i]);
+ eth_dev->data->tx_queues[i] = NULL;
+ }
+
+ rxq = (struct otx2_eth_rxq **)eth_dev->data->rx_queues;
+ for (i = 0; i < nb_rxq; i++) {
+ if (rxq[i] == NULL) {
+ otx2_err("rxq[%d] is already released", i);
+ goto fail;
+ }
+ memcpy(&rx_qconf[i], &rxq[i]->qconf, sizeof(*rx_qconf));
+ otx2_nix_rx_queue_release(rxq[i]);
+ eth_dev->data->rx_queues[i] = NULL;
+ }
+
+ dev->tx_qconf = tx_qconf;
+ dev->rx_qconf = rx_qconf;
+ return 0;
+
+fail:
+ if (tx_qconf)
+ free(tx_qconf);
+ if (rx_qconf)
+ free(rx_qconf);
+
+ return -ENOMEM;
+}
+
+static int
+nix_restore_queue_cfg(struct rte_eth_dev *eth_dev)
+{
+ struct otx2_eth_dev *dev = otx2_eth_pmd_priv(eth_dev);
+ struct otx2_eth_qconf *tx_qconf = dev->tx_qconf;
+ struct otx2_eth_qconf *rx_qconf = dev->rx_qconf;
+ struct otx2_eth_txq **txq;
+ struct otx2_eth_rxq **rxq;
+ int rc, i, nb_rxq, nb_txq;
+
+ nb_rxq = RTE_MIN(dev->configured_nb_rx_qs, eth_dev->data->nb_rx_queues);
+ nb_txq = RTE_MIN(dev->configured_nb_tx_qs, eth_dev->data->nb_tx_queues);
+
+ rc = -ENOMEM;
+ /* Setup tx & rx queues with previous configuration so
+ * that the queues can be functional in cases like ports
+ * are started without re configuring queues.
+ *
+ * Usual re config sequence is like below:
+ * port_configure() {
+ * if(reconfigure) {
+ * queue_release()
+ * queue_setup()
+ * }
+ * queue_configure() {
+ * queue_release()
+ * queue_setup()
+ * }
+ * }
+ * port_start()
+ *
+ * In some application's control path, queue_configure() would
+ * NOT be invoked for TXQs/RXQs in port_configure().
+ * In such cases, queues can be functional after start as the
+ * queues are already setup in port_configure().
+ */
+ for (i = 0; i < nb_txq; i++) {
+ rc = otx2_nix_tx_queue_setup(eth_dev, i, tx_qconf[i].nb_desc,
+ tx_qconf[i].socket_id,
+ &tx_qconf[i].conf.tx);
+ if (rc) {
+ otx2_err("Failed to setup tx queue rc=%d", rc);
+ txq = (struct otx2_eth_txq **)eth_dev->data->tx_queues;
+ for (i -= 1; i >= 0; i--)
+ otx2_nix_tx_queue_release(txq[i]);
+ goto fail;
+ }
+ }
+
+ free(tx_qconf); tx_qconf = NULL;
+
+ for (i = 0; i < nb_rxq; i++) {
+ rc = otx2_nix_rx_queue_setup(eth_dev, i, rx_qconf[i].nb_desc,
+ rx_qconf[i].socket_id,
+ &rx_qconf[i].conf.rx,
+ rx_qconf[i].mempool);
+ if (rc) {
+ otx2_err("Failed to setup rx queue rc=%d", rc);
+ rxq = (struct otx2_eth_rxq **)eth_dev->data->rx_queues;
+ for (i -= 1; i >= 0; i--)
+ otx2_nix_rx_queue_release(rxq[i]);
+ goto release_tx_queues;
+ }
+ }
+
+ free(rx_qconf); rx_qconf = NULL;
+
+ return 0;
+
+release_tx_queues:
+ txq = (struct otx2_eth_txq **)eth_dev->data->tx_queues;
+ for (i = 0; i < eth_dev->data->nb_tx_queues; i++)
+ otx2_nix_tx_queue_release(txq[i]);
+fail:
+ if (tx_qconf)
+ free(tx_qconf);
+ if (rx_qconf)
+ free(rx_qconf);
+
+ return rc;
+}
+
+static uint16_t
+nix_eth_nop_burst(void *queue, struct rte_mbuf **mbufs, uint16_t pkts)
+{
+ RTE_SET_USED(queue);
+ RTE_SET_USED(mbufs);
+ RTE_SET_USED(pkts);
+
+ return 0;
+}
+
+static void
+nix_set_nop_rxtx_function(struct rte_eth_dev *eth_dev)
+{
+ /* These dummy functions are required for supporting
+ * some applications which reconfigure queues without
+ * stopping tx burst and rx burst threads(eg kni app)
+ * When the queues context is saved, txq/rxqs are released
+ * which caused app crash since rx/tx burst is still
+ * on different lcores
+ */
+ eth_dev->tx_pkt_burst = nix_eth_nop_burst;
+ eth_dev->rx_pkt_burst = nix_eth_nop_burst;
+ rte_mb();
+}
+
+static int
+otx2_nix_configure(struct rte_eth_dev *eth_dev)
+{
+ struct otx2_eth_dev *dev = otx2_eth_pmd_priv(eth_dev);
+ struct rte_eth_dev_data *data = eth_dev->data;
+ struct rte_eth_conf *conf = &data->dev_conf;
+ struct rte_eth_rxmode *rxmode = &conf->rxmode;
+ struct rte_eth_txmode *txmode = &conf->txmode;
+ char ea_fmt[RTE_ETHER_ADDR_FMT_SIZE];
+ struct rte_ether_addr *ea;
+ uint8_t nb_rxq, nb_txq;
+ int rc;
+
+ rc = -EINVAL;
+
+ /* Sanity checks */
+ if (rte_eal_has_hugepages() == 0) {
+ otx2_err("Huge page is not configured");
+ goto fail;
+ }
+
+ if (rte_eal_iova_mode() != RTE_IOVA_VA) {
+ otx2_err("iova mode should be va");
+ goto fail;
+ }
+
+ if (conf->link_speeds & ETH_LINK_SPEED_FIXED) {
+ otx2_err("Setting link speed/duplex not supported");
+ goto fail;
+ }
+
+ if (conf->dcb_capability_en == 1) {
+ otx2_err("dcb enable is not supported");
+ goto fail;
+ }
+
+ if (conf->fdir_conf.mode != RTE_FDIR_MODE_NONE) {
+ otx2_err("Flow director is not supported");
+ goto fail;
+ }
+
+ if (rxmode->mq_mode != ETH_MQ_RX_NONE &&
+ rxmode->mq_mode != ETH_MQ_RX_RSS) {
+ otx2_err("Unsupported mq rx mode %d", rxmode->mq_mode);
+ goto fail;
+ }
+
+ if (txmode->mq_mode != ETH_MQ_TX_NONE) {
+ otx2_err("Unsupported mq tx mode %d", txmode->mq_mode);
+ goto fail;
+ }
+
+ /* Free the resources allocated from the previous configure */
+ if (dev->configured == 1) {
+ otx2_nix_rxchan_bpid_cfg(eth_dev, false);
+ oxt2_nix_unregister_queue_irqs(eth_dev);
+ nix_set_nop_rxtx_function(eth_dev);
+ rc = nix_store_queue_cfg_and_then_release(eth_dev);
+ if (rc)
+ goto fail;
+ otx2_nix_tm_fini(eth_dev);
+ nix_lf_free(dev);
+ }
+
+ if (otx2_dev_is_A0(dev) &&
+ (txmode->offloads & DEV_TX_OFFLOAD_SCTP_CKSUM) &&
+ ((txmode->offloads & DEV_TX_OFFLOAD_OUTER_IPV4_CKSUM) ||
+ (txmode->offloads & DEV_TX_OFFLOAD_OUTER_UDP_CKSUM))) {
+ otx2_err("Outer IP and SCTP checksum unsupported");
+ rc = -EINVAL;
+ goto fail;
+ }
+
+ dev->rx_offloads = rxmode->offloads;
+ dev->tx_offloads = txmode->offloads;
+ dev->rss_info.rss_grps = NIX_RSS_GRPS;
+
+ nb_rxq = RTE_MAX(data->nb_rx_queues, 1);
+ nb_txq = RTE_MAX(data->nb_tx_queues, 1);
+
+ /* Alloc a nix lf */
+ rc = nix_lf_alloc(dev, nb_rxq, nb_txq);
+ if (rc) {
+ otx2_err("Failed to init nix_lf rc=%d", rc);
+ goto fail;
+ }
+
+ /* Configure RSS */
+ rc = otx2_nix_rss_config(eth_dev);
+ if (rc) {
+ otx2_err("Failed to configure rss rc=%d", rc);
+ goto free_nix_lf;
+ }
+
+ /* Init the default TM scheduler hierarchy */
+ rc = otx2_nix_tm_init_default(eth_dev);
+ if (rc) {
+ otx2_err("Failed to init traffic manager rc=%d", rc);
+ goto free_nix_lf;
+ }
+
+ /* Register queue IRQs */
+ rc = oxt2_nix_register_queue_irqs(eth_dev);
+ if (rc) {
+ otx2_err("Failed to register queue interrupts rc=%d", rc);
+ goto free_nix_lf;
+ }
+
+ rc = otx2_nix_rxchan_bpid_cfg(eth_dev, true);
+ if (rc) {
+ otx2_err("Failed to configure nix rx chan bpid cfg rc=%d", rc);
+ goto free_nix_lf;
+ }
+
+ /* Enable PTP if it was requested by the app or if it is already
+ * enabled in PF owning this VF
+ */
+ memset(&dev->tstamp, 0, sizeof(struct otx2_timesync_info));
+ if ((dev->rx_offloads & DEV_RX_OFFLOAD_TIMESTAMP) ||
+ otx2_ethdev_is_ptp_en(dev))
+ otx2_nix_timesync_enable(eth_dev);
+ else
+ otx2_nix_timesync_disable(eth_dev);
+
+ /*
+ * Restore queue config when reconfigure followed by
+ * reconfigure and no queue configure invoked from application case.
+ */
+ if (dev->configured == 1) {
+ rc = nix_restore_queue_cfg(eth_dev);
+ if (rc)
+ goto free_nix_lf;
+ }
+
+ /* Update the mac address */
+ ea = eth_dev->data->mac_addrs;
+ memcpy(ea, dev->mac_addr, RTE_ETHER_ADDR_LEN);
+ if (rte_is_zero_ether_addr(ea))
+ rte_eth_random_addr((uint8_t *)ea);
+
+ rte_ether_format_addr(ea_fmt, RTE_ETHER_ADDR_FMT_SIZE, ea);
+
+ otx2_nix_dbg("Configured port%d mac=%s nb_rxq=%d nb_txq=%d"
+ " rx_offloads=0x%" PRIx64 " tx_offloads=0x%" PRIx64 ""
+ " rx_flags=0x%x tx_flags=0x%x",
+ eth_dev->data->port_id, ea_fmt, nb_rxq,
+ nb_txq, dev->rx_offloads, dev->tx_offloads,
+ dev->rx_offload_flags, dev->tx_offload_flags);
+
+ /* All good */
+ dev->configured = 1;
+ dev->configured_nb_rx_qs = data->nb_rx_queues;
+ dev->configured_nb_tx_qs = data->nb_tx_queues;
+ return 0;
+
+free_nix_lf:
+ rc = nix_lf_free(dev);
+fail:
+ return rc;
+}
+
+int
+otx2_nix_tx_queue_start(struct rte_eth_dev *eth_dev, uint16_t qidx)
+{
+ struct rte_eth_dev_data *data = eth_dev->data;
+ struct otx2_eth_txq *txq;
+ int rc = -EINVAL;
+
+ txq = eth_dev->data->tx_queues[qidx];
+
+ if (data->tx_queue_state[qidx] == RTE_ETH_QUEUE_STATE_STARTED)
+ return 0;
+
+ rc = otx2_nix_sq_sqb_aura_fc(txq, true);
+ if (rc) {
+ otx2_err("Failed to enable sqb aura fc, txq=%u, rc=%d",
+ qidx, rc);
+ goto done;
+ }
+
+ data->tx_queue_state[qidx] = RTE_ETH_QUEUE_STATE_STARTED;
+
+done:
+ return rc;
+}
+
+int
+otx2_nix_tx_queue_stop(struct rte_eth_dev *eth_dev, uint16_t qidx)
+{
+ struct rte_eth_dev_data *data = eth_dev->data;
+ struct otx2_eth_txq *txq;
+ int rc;
+
+ txq = eth_dev->data->tx_queues[qidx];
+
+ if (data->tx_queue_state[qidx] == RTE_ETH_QUEUE_STATE_STOPPED)
+ return 0;
+
+ txq->fc_cache_pkts = 0;
+
+ rc = otx2_nix_sq_sqb_aura_fc(txq, false);
+ if (rc) {
+ otx2_err("Failed to disable sqb aura fc, txq=%u, rc=%d",
+ qidx, rc);
+ goto done;
+ }
+
+ data->tx_queue_state[qidx] = RTE_ETH_QUEUE_STATE_STOPPED;
+
+done:
+ return rc;
+}
+
+static int
+otx2_nix_rx_queue_start(struct rte_eth_dev *eth_dev, uint16_t qidx)
+{
+ struct otx2_eth_rxq *rxq = eth_dev->data->rx_queues[qidx];
+ struct rte_eth_dev_data *data = eth_dev->data;
+ int rc;
+
+ if (data->rx_queue_state[qidx] == RTE_ETH_QUEUE_STATE_STARTED)
+ return 0;
+
+ rc = nix_rq_enb_dis(rxq->eth_dev, rxq, true);
+ if (rc) {
+ otx2_err("Failed to enable rxq=%u, rc=%d", qidx, rc);
+ goto done;
+ }
+
+ data->rx_queue_state[qidx] = RTE_ETH_QUEUE_STATE_STARTED;
+
+done:
+ return rc;
+}
+
+static int
+otx2_nix_rx_queue_stop(struct rte_eth_dev *eth_dev, uint16_t qidx)
+{
+ struct otx2_eth_rxq *rxq = eth_dev->data->rx_queues[qidx];
+ struct rte_eth_dev_data *data = eth_dev->data;
+ int rc;
+
+ if (data->rx_queue_state[qidx] == RTE_ETH_QUEUE_STATE_STOPPED)
+ return 0;
+
+ rc = nix_rq_enb_dis(rxq->eth_dev, rxq, false);
+ if (rc) {
+ otx2_err("Failed to disable rxq=%u, rc=%d", qidx, rc);
+ goto done;
+ }
+
+ data->rx_queue_state[qidx] = RTE_ETH_QUEUE_STATE_STOPPED;
+
+done:
+ return rc;
+}
+
+/* Initialize and register driver with DPDK Application */
+static const struct eth_dev_ops otx2_eth_dev_ops = {
+ .dev_infos_get = otx2_nix_info_get,
+ .dev_configure = otx2_nix_configure,
+ .link_update = otx2_nix_link_update,
+ .tx_queue_setup = otx2_nix_tx_queue_setup,
+ .tx_queue_release = otx2_nix_tx_queue_release,
+ .rx_queue_setup = otx2_nix_rx_queue_setup,
+ .rx_queue_release = otx2_nix_rx_queue_release,
+ .tx_queue_start = otx2_nix_tx_queue_start,
+ .tx_queue_stop = otx2_nix_tx_queue_stop,
+ .rx_queue_start = otx2_nix_rx_queue_start,
+ .rx_queue_stop = otx2_nix_rx_queue_stop,
+ .dev_supported_ptypes_get = otx2_nix_supported_ptypes_get,
+ .stats_get = otx2_nix_dev_stats_get,
+ .stats_reset = otx2_nix_dev_stats_reset,
+ .get_reg = otx2_nix_dev_get_reg,
+ .mac_addr_add = otx2_nix_mac_addr_add,
+ .mac_addr_remove = otx2_nix_mac_addr_del,
+ .mac_addr_set = otx2_nix_mac_addr_set,
+ .promiscuous_enable = otx2_nix_promisc_enable,
+ .promiscuous_disable = otx2_nix_promisc_disable,
+ .allmulticast_enable = otx2_nix_allmulticast_enable,
+ .allmulticast_disable = otx2_nix_allmulticast_disable,
+ .queue_stats_mapping_set = otx2_nix_queue_stats_mapping,
+ .reta_update = otx2_nix_dev_reta_update,
+ .reta_query = otx2_nix_dev_reta_query,
+ .rss_hash_update = otx2_nix_rss_hash_update,
+ .rss_hash_conf_get = otx2_nix_rss_hash_conf_get,
+ .xstats_get = otx2_nix_xstats_get,
+ .xstats_get_names = otx2_nix_xstats_get_names,
+ .xstats_reset = otx2_nix_xstats_reset,
+ .xstats_get_by_id = otx2_nix_xstats_get_by_id,
+ .xstats_get_names_by_id = otx2_nix_xstats_get_names_by_id,
+ .rxq_info_get = otx2_nix_rxq_info_get,
+ .txq_info_get = otx2_nix_txq_info_get,
+ .rx_queue_count = otx2_nix_rx_queue_count,
+ .rx_descriptor_done = otx2_nix_rx_descriptor_done,
+ .rx_descriptor_status = otx2_nix_rx_descriptor_status,
+ .tx_done_cleanup = otx2_nix_tx_done_cleanup,
+ .pool_ops_supported = otx2_nix_pool_ops_supported,
+ .get_module_info = otx2_nix_get_module_info,
+ .get_module_eeprom = otx2_nix_get_module_eeprom,
+ .flow_ctrl_get = otx2_nix_flow_ctrl_get,
+ .flow_ctrl_set = otx2_nix_flow_ctrl_set,
+ .timesync_enable = otx2_nix_timesync_enable,
+ .timesync_disable = otx2_nix_timesync_disable,
+};
+
+static inline int
+nix_lf_attach(struct otx2_eth_dev *dev)
+{
+ struct otx2_mbox *mbox = dev->mbox;
+ struct rsrc_attach_req *req;
+
+ /* Attach NIX(lf) */
+ req = otx2_mbox_alloc_msg_attach_resources(mbox);
+ req->modify = true;
+ req->nixlf = true;
+
+ return otx2_mbox_process(mbox);
+}
+
+static inline int
+nix_lf_get_msix_offset(struct otx2_eth_dev *dev)
+{
+ struct otx2_mbox *mbox = dev->mbox;
+ struct msix_offset_rsp *msix_rsp;
+ int rc;
+
+ /* Get NPA and NIX MSIX vector offsets */
+ otx2_mbox_alloc_msg_msix_offset(mbox);
+
+ rc = otx2_mbox_process_msg(mbox, (void *)&msix_rsp);
+
+ dev->nix_msixoff = msix_rsp->nix_msixoff;
+
+ return rc;
+}
+
+static inline int
+otx2_eth_dev_lf_detach(struct otx2_mbox *mbox)
+{
+ struct rsrc_detach_req *req;
+
+ req = otx2_mbox_alloc_msg_detach_resources(mbox);
+
+ /* Detach all except npa lf */
+ req->partial = true;
+ req->nixlf = true;
+ req->sso = true;
+ req->ssow = true;
+ req->timlfs = true;
+ req->cptlfs = true;
+
+ return otx2_mbox_process(mbox);
+}
+
+static int
+otx2_eth_dev_init(struct rte_eth_dev *eth_dev)
+{
+ struct otx2_eth_dev *dev = otx2_eth_pmd_priv(eth_dev);
+ struct rte_pci_device *pci_dev;
+ int rc, max_entries;
+
+ eth_dev->dev_ops = &otx2_eth_dev_ops;
+
+ /* For secondary processes, the primary has done all the work */
+ if (rte_eal_process_type() != RTE_PROC_PRIMARY) {
+ /* Setup callbacks for secondary process */
+ otx2_eth_set_tx_function(eth_dev);
+ otx2_eth_set_rx_function(eth_dev);
+ return 0;
+ }
+
+ pci_dev = RTE_ETH_DEV_TO_PCI(eth_dev);
+
+ rte_eth_copy_pci_info(eth_dev, pci_dev);
+ eth_dev->data->dev_flags |= RTE_ETH_DEV_CLOSE_REMOVE;
+
+ /* Zero out everything after OTX2_DEV to allow proper dev_reset() */
+ memset(&dev->otx2_eth_dev_data_start, 0, sizeof(*dev) -
+ offsetof(struct otx2_eth_dev, otx2_eth_dev_data_start));
+
+ /* Parse devargs string */
+ rc = otx2_ethdev_parse_devargs(eth_dev->device->devargs, dev);
+ if (rc) {
+ otx2_err("Failed to parse devargs rc=%d", rc);
+ goto error;
+ }
+
+ if (!dev->mbox_active) {
+ /* Initialize the base otx2_dev object
+ * only if already present
+ */
+ rc = otx2_dev_init(pci_dev, dev);
+ if (rc) {
+ otx2_err("Failed to initialize otx2_dev rc=%d", rc);
+ goto error;
+ }
+ }
+ /* Device generic callbacks */
+ dev->ops = &otx2_dev_ops;
+ dev->eth_dev = eth_dev;
+
+ /* Grab the NPA LF if required */
+ rc = otx2_npa_lf_init(pci_dev, dev);
+ if (rc)
+ goto otx2_dev_uninit;
+
+ dev->configured = 0;
+ dev->drv_inited = true;
+ dev->base = dev->bar2 + (RVU_BLOCK_ADDR_NIX0 << 20);
+ dev->lmt_addr = dev->bar2 + (RVU_BLOCK_ADDR_LMT << 20);
+
+ /* Attach NIX LF */
+ rc = nix_lf_attach(dev);
+ if (rc)
+ goto otx2_npa_uninit;
+
+ /* Get NIX MSIX offset */
+ rc = nix_lf_get_msix_offset(dev);
+ if (rc)
+ goto otx2_npa_uninit;
+
+ /* Register LF irq handlers */
+ rc = otx2_nix_register_irqs(eth_dev);
+ if (rc)
+ goto mbox_detach;
+
+ /* Get maximum number of supported MAC entries */
+ max_entries = otx2_cgx_mac_max_entries_get(dev);
+ if (max_entries < 0) {
+ otx2_err("Failed to get max entries for mac addr");
+ rc = -ENOTSUP;
+ goto unregister_irq;
+ }
+
+ /* For VFs, returned max_entries will be 0. But to keep default MAC
+ * address, one entry must be allocated. So setting up to 1.
+ */
+ if (max_entries == 0)
+ max_entries = 1;
+
+ eth_dev->data->mac_addrs = rte_zmalloc("mac_addr", max_entries *
+ RTE_ETHER_ADDR_LEN, 0);
+ if (eth_dev->data->mac_addrs == NULL) {
+ otx2_err("Failed to allocate memory for mac addr");
+ rc = -ENOMEM;
+ goto unregister_irq;
+ }
+
+ dev->max_mac_entries = max_entries;
+
+ rc = otx2_nix_mac_addr_get(eth_dev, dev->mac_addr);
+ if (rc)
+ goto free_mac_addrs;
+
+ /* Update the mac address */
+ memcpy(eth_dev->data->mac_addrs, dev->mac_addr, RTE_ETHER_ADDR_LEN);
+
+ /* Also sync same MAC address to CGX table */
+ otx2_cgx_mac_addr_set(eth_dev, ð_dev->data->mac_addrs[0]);
+
+ /* Initialize the tm data structures */
+ otx2_nix_tm_conf_init(eth_dev);
+
+ dev->tx_offload_capa = nix_get_tx_offload_capa(dev);
+ dev->rx_offload_capa = nix_get_rx_offload_capa(dev);
+
+ if (otx2_dev_is_A0(dev)) {
+ dev->hwcap |= OTX2_FIXUP_F_MIN_4K_Q;
+ dev->hwcap |= OTX2_FIXUP_F_LIMIT_CQ_FULL;
+ }
+
+ otx2_nix_dbg("Port=%d pf=%d vf=%d ver=%s msix_off=%d hwcap=0x%" PRIx64
+ " rxoffload_capa=0x%" PRIx64 " txoffload_capa=0x%" PRIx64,
+ eth_dev->data->port_id, dev->pf, dev->vf,
+ OTX2_ETH_DEV_PMD_VERSION, dev->nix_msixoff, dev->hwcap,
+ dev->rx_offload_capa, dev->tx_offload_capa);
+ return 0;
+
+free_mac_addrs:
+ rte_free(eth_dev->data->mac_addrs);
+unregister_irq:
+ otx2_nix_unregister_irqs(eth_dev);
+mbox_detach:
+ otx2_eth_dev_lf_detach(dev->mbox);
+otx2_npa_uninit:
+ otx2_npa_lf_fini();
+otx2_dev_uninit:
+ otx2_dev_fini(pci_dev, dev);
+error:
+ otx2_err("Failed to init nix eth_dev rc=%d", rc);
+ return rc;
+}
+
+static int
+otx2_eth_dev_uninit(struct rte_eth_dev *eth_dev, bool mbox_close)
+{
+ struct otx2_eth_dev *dev = otx2_eth_pmd_priv(eth_dev);
+ struct rte_pci_device *pci_dev;
+ int rc, i;
+
+ /* Nothing to be done for secondary processes */
+ if (rte_eal_process_type() != RTE_PROC_PRIMARY)
+ return 0;
+
+ /* Disable nix bpid config */
+ otx2_nix_rxchan_bpid_cfg(eth_dev, false);
+
+ /* Disable PTP if already enabled */
+ if (otx2_ethdev_is_ptp_en(dev))
+ otx2_nix_timesync_disable(eth_dev);
+
+ /* Free up SQs */
+ for (i = 0; i < eth_dev->data->nb_tx_queues; i++) {
+ otx2_nix_tx_queue_release(eth_dev->data->tx_queues[i]);
+ eth_dev->data->tx_queues[i] = NULL;
+ }
+ eth_dev->data->nb_tx_queues = 0;
+
+ /* Free up RQ's and CQ's */
+ for (i = 0; i < eth_dev->data->nb_rx_queues; i++) {
+ otx2_nix_rx_queue_release(eth_dev->data->rx_queues[i]);
+ eth_dev->data->rx_queues[i] = NULL;
+ }
+ eth_dev->data->nb_rx_queues = 0;
+
+ /* Free tm resources */
+ rc = otx2_nix_tm_fini(eth_dev);
+ if (rc)
+ otx2_err("Failed to cleanup tm, rc=%d", rc);
+
+ /* Unregister queue irqs */
+ oxt2_nix_unregister_queue_irqs(eth_dev);
+
+ rc = nix_lf_free(dev);
+ if (rc)
+ otx2_err("Failed to free nix lf, rc=%d", rc);
+
+ rc = otx2_npa_lf_fini();
+ if (rc)
+ otx2_err("Failed to cleanup npa lf, rc=%d", rc);
+
+ rte_free(eth_dev->data->mac_addrs);
+ eth_dev->data->mac_addrs = NULL;
+ dev->drv_inited = false;
+
+ pci_dev = RTE_ETH_DEV_TO_PCI(eth_dev);
+ otx2_nix_unregister_irqs(eth_dev);
+
+ rc = otx2_eth_dev_lf_detach(dev->mbox);
+ if (rc)
+ otx2_err("Failed to detach resources, rc=%d", rc);
+
+ /* Check if mbox close is needed */
+ if (!mbox_close)
+ return 0;
+
+ if (otx2_npa_lf_active(dev) || otx2_dev_active_vfs(dev)) {
+ /* Will be freed later by PMD */
+ eth_dev->data->dev_private = NULL;
+ return 0;
+ }
+
+ otx2_dev_fini(pci_dev, dev);
+ return 0;
+}
+
+static int
+nix_remove(struct rte_pci_device *pci_dev)
+{
+ struct rte_eth_dev *eth_dev;
+ struct otx2_idev_cfg *idev;
+ struct otx2_dev *otx2_dev;
+ int rc;
+
+ eth_dev = rte_eth_dev_allocated(pci_dev->device.name);
+ if (eth_dev) {
+ /* Cleanup eth dev */
+ rc = otx2_eth_dev_uninit(eth_dev, true);
+ if (rc)
+ return rc;
+
+ rte_eth_dev_pci_release(eth_dev);
+ }
+
+ /* Nothing to be done for secondary processes */
+ if (rte_eal_process_type() != RTE_PROC_PRIMARY)
+ return 0;
+
+ /* Check for common resources */
+ idev = otx2_intra_dev_get_cfg();
+ if (!idev || !idev->npa_lf || idev->npa_lf->pci_dev != pci_dev)
+ return 0;
+
+ otx2_dev = container_of(idev->npa_lf, struct otx2_dev, npalf);
+
+ if (otx2_npa_lf_active(otx2_dev) || otx2_dev_active_vfs(otx2_dev))
+ goto exit;
+
+ /* Safe to cleanup mbox as no more users */
+ otx2_dev_fini(pci_dev, otx2_dev);
+ rte_free(otx2_dev);
+ return 0;
+
+exit:
+ otx2_info("%s: common resource in use by other devices", pci_dev->name);
+ return -EAGAIN;
+}
+
+static int
+nix_probe(struct rte_pci_driver *pci_drv, struct rte_pci_device *pci_dev)
+{
+ int rc;
+
+ RTE_SET_USED(pci_drv);
+
+ rc = rte_eth_dev_pci_generic_probe(pci_dev, sizeof(struct otx2_eth_dev),
+ otx2_eth_dev_init);
+
+ /* On error on secondary, recheck if port exists in primary or
+ * in mid of detach state.
+ */
+ if (rte_eal_process_type() != RTE_PROC_PRIMARY && rc)
+ if (!rte_eth_dev_allocated(pci_dev->device.name))
+ return 0;
+ return rc;
+}
+
+static const struct rte_pci_id pci_nix_map[] = {
+ {
+ RTE_PCI_DEVICE(PCI_VENDOR_ID_CAVIUM, PCI_DEVID_OCTEONTX2_RVU_PF)
+ },
+ {
+ RTE_PCI_DEVICE(PCI_VENDOR_ID_CAVIUM, PCI_DEVID_OCTEONTX2_RVU_VF)
+ },
+ {
+ RTE_PCI_DEVICE(PCI_VENDOR_ID_CAVIUM,
+ PCI_DEVID_OCTEONTX2_RVU_AF_VF)
+ },
+ {
+ .vendor_id = 0,
+ },
+};
+
+static struct rte_pci_driver pci_nix = {
+ .id_table = pci_nix_map,
+ .drv_flags = RTE_PCI_DRV_NEED_MAPPING | RTE_PCI_DRV_IOVA_AS_VA |
+ RTE_PCI_DRV_INTR_LSC,
+ .probe = nix_probe,
+ .remove = nix_remove,
+};
+
+RTE_PMD_REGISTER_PCI(net_octeontx2, pci_nix);
+RTE_PMD_REGISTER_PCI_TABLE(net_octeontx2, pci_nix_map);
+RTE_PMD_REGISTER_KMOD_DEP(net_octeontx2, "vfio-pci");
git.droids-corp.org / dpdk.git / blobdiff