/* SPDX-License-Identifier: BSD-3-Clause
- * Copyright(c) 2014-2018 Broadcom
+ * Copyright(c) 2014-2021 Broadcom
* All rights reserved.
*/
#include <rte_malloc.h>
#include "bnxt.h"
+#include "bnxt_hwrm.h"
#include "bnxt_ring.h"
#include "bnxt_txq.h"
#include "bnxt_txr.h"
rte_free(txq->cp_ring->cp_ring_struct);
rte_free(txq->cp_ring);
+ rte_memzone_free(txq->mz);
+ txq->mz = NULL;
+
rte_free(txq);
bp->tx_queues[i] = NULL;
}
ring->ring_mask = ring->ring_size - 1;
ring->bd = (void *)txr->tx_desc_ring;
ring->bd_dma = txr->tx_desc_mapping;
- ring->vmem_size = ring->ring_size * sizeof(struct bnxt_sw_tx_bd);
+ ring->vmem_size = ring->ring_size * sizeof(struct rte_mbuf *);
ring->vmem = (void **)&txr->tx_buf_ring;
ring->fw_ring_id = INVALID_HW_RING_ID;
return 0;
}
+static bool
+bnxt_xmit_need_long_bd(struct rte_mbuf *tx_pkt, struct bnxt_tx_queue *txq)
+{
+ if (tx_pkt->ol_flags & (PKT_TX_TCP_SEG | PKT_TX_TCP_CKSUM |
+ PKT_TX_UDP_CKSUM | PKT_TX_IP_CKSUM |
+ PKT_TX_VLAN | PKT_TX_OUTER_IP_CKSUM |
+ PKT_TX_TUNNEL_GRE | PKT_TX_TUNNEL_VXLAN |
+ PKT_TX_TUNNEL_GENEVE | PKT_TX_IEEE1588_TMST |
+ PKT_TX_QINQ) ||
+ (BNXT_TRUFLOW_EN(txq->bp) &&
+ (txq->bp->tx_cfa_action || txq->vfr_tx_cfa_action)))
+ return true;
+ return false;
+}
+
static uint16_t bnxt_start_xmit(struct rte_mbuf *tx_pkt,
struct bnxt_tx_queue *txq,
uint16_t *coal_pkts,
struct tx_bd_long **last_txbd)
{
struct bnxt_tx_ring_info *txr = txq->tx_ring;
+ struct bnxt_ring *ring = txr->tx_ring_struct;
uint32_t outer_tpid_bd = 0;
struct tx_bd_long *txbd;
struct tx_bd_long_hi *txbd1 = NULL;
uint32_t vlan_tag_flags;
bool long_bd = false;
- unsigned short nr_bds = 0;
+ unsigned short nr_bds;
+ uint16_t prod;
struct rte_mbuf *m_seg;
- struct bnxt_sw_tx_bd *tx_buf;
+ struct rte_mbuf **tx_buf;
static const uint32_t lhint_arr[4] = {
TX_BD_LONG_FLAGS_LHINT_LT512,
TX_BD_LONG_FLAGS_LHINT_LT1K,
if (unlikely(is_bnxt_in_error(txq->bp)))
return -EIO;
- if (tx_pkt->ol_flags & (PKT_TX_TCP_SEG | PKT_TX_TCP_CKSUM |
- PKT_TX_UDP_CKSUM | PKT_TX_IP_CKSUM |
- PKT_TX_VLAN_PKT | PKT_TX_OUTER_IP_CKSUM |
- PKT_TX_TUNNEL_GRE | PKT_TX_TUNNEL_VXLAN |
- PKT_TX_TUNNEL_GENEVE | PKT_TX_IEEE1588_TMST |
- PKT_TX_QINQ_PKT) ||
- (BNXT_TRUFLOW_EN(txq->bp) &&
- (txq->bp->tx_cfa_action || txq->vfr_tx_cfa_action)))
- long_bd = true;
-
+ long_bd = bnxt_xmit_need_long_bd(tx_pkt, txq);
nr_bds = long_bd + tx_pkt->nb_segs;
+
if (unlikely(bnxt_tx_avail(txq) < nr_bds))
return -ENOMEM;
/* Check non zero data_len */
RTE_VERIFY(tx_pkt->data_len);
- tx_buf = &txr->tx_buf_ring[txr->tx_prod];
- tx_buf->mbuf = tx_pkt;
- tx_buf->nr_bds = nr_bds;
+ prod = RING_IDX(ring, txr->tx_raw_prod);
+ tx_buf = &txr->tx_buf_ring[prod];
+ *tx_buf = tx_pkt;
- txbd = &txr->tx_desc_ring[txr->tx_prod];
+ txbd = &txr->tx_desc_ring[prod];
txbd->opaque = *coal_pkts;
txbd->flags_type = nr_bds << TX_BD_LONG_FLAGS_BD_CNT_SFT;
txbd->flags_type |= TX_BD_SHORT_FLAGS_COAL_NOW;
txbd->flags_type |= TX_BD_LONG_FLAGS_NO_CMPL;
txbd->len = tx_pkt->data_len;
- if (tx_pkt->pkt_len >= 2014)
+ if (tx_pkt->pkt_len >= 2048)
txbd->flags_type |= TX_BD_LONG_FLAGS_LHINT_GTE2K;
else
txbd->flags_type |= lhint_arr[tx_pkt->pkt_len >> 9];
- txbd->address = rte_cpu_to_le_64(rte_mbuf_data_iova(tx_buf->mbuf));
+ txbd->address = rte_cpu_to_le_64(rte_mbuf_data_iova(tx_pkt));
*last_txbd = txbd;
if (long_bd) {
vlan_tag_flags = 0;
/* HW can accelerate only outer vlan in QinQ mode */
- if (tx_buf->mbuf->ol_flags & PKT_TX_QINQ_PKT) {
+ if (tx_pkt->ol_flags & PKT_TX_QINQ) {
vlan_tag_flags = TX_BD_LONG_CFA_META_KEY_VLAN_TAG |
- tx_buf->mbuf->vlan_tci_outer;
+ tx_pkt->vlan_tci_outer;
outer_tpid_bd = txq->bp->outer_tpid_bd &
BNXT_OUTER_TPID_BD_MASK;
vlan_tag_flags |= outer_tpid_bd;
- } else if (tx_buf->mbuf->ol_flags & PKT_TX_VLAN_PKT) {
+ } else if (tx_pkt->ol_flags & PKT_TX_VLAN) {
/* shurd: Should this mask at
* TX_BD_LONG_CFA_META_VLAN_VID_MASK?
*/
vlan_tag_flags = TX_BD_LONG_CFA_META_KEY_VLAN_TAG |
- tx_buf->mbuf->vlan_tci;
+ tx_pkt->vlan_tci;
/* Currently supports 8021Q, 8021AD vlan offloads
* QINQ1, QINQ2, QINQ3 vlan headers are deprecated
*/
TX_BD_LONG_CFA_META_VLAN_TPID_TPID8100;
}
- txr->tx_prod = RING_NEXT(txr->tx_ring_struct, txr->tx_prod);
+ txr->tx_raw_prod = RING_NEXT(txr->tx_raw_prod);
- txbd1 = (struct tx_bd_long_hi *)
- &txr->tx_desc_ring[txr->tx_prod];
+ prod = RING_IDX(ring, txr->tx_raw_prod);
+ txbd1 = (struct tx_bd_long_hi *)&txr->tx_desc_ring[prod];
txbd1->lflags = 0;
txbd1->cfa_meta = vlan_tag_flags;
/* Legacy tx_bd_long_hi->mss =
while (m_seg) {
/* Check non zero data_len */
RTE_VERIFY(m_seg->data_len);
- txr->tx_prod = RING_NEXT(txr->tx_ring_struct, txr->tx_prod);
- tx_buf = &txr->tx_buf_ring[txr->tx_prod];
- tx_buf->mbuf = m_seg;
+ txr->tx_raw_prod = RING_NEXT(txr->tx_raw_prod);
+
+ prod = RING_IDX(ring, txr->tx_raw_prod);
+ tx_buf = &txr->tx_buf_ring[prod];
+ *tx_buf = m_seg;
- txbd = &txr->tx_desc_ring[txr->tx_prod];
+ txbd = &txr->tx_desc_ring[prod];
txbd->address = rte_cpu_to_le_64(rte_mbuf_data_iova(m_seg));
txbd->flags_type = TX_BD_SHORT_TYPE_TX_BD_SHORT;
txbd->len = m_seg->data_len;
txbd->flags_type |= TX_BD_LONG_FLAGS_PACKET_END;
- txr->tx_prod = RING_NEXT(txr->tx_ring_struct, txr->tx_prod);
+ txr->tx_raw_prod = RING_NEXT(txr->tx_raw_prod);
return 0;
}
/*
- * Transmit completion function for use when DEV_TX_OFFLOAD_MBUF_FAST_FREE
+ * Transmit completion function for use when RTE_ETH_TX_OFFLOAD_MBUF_FAST_FREE
* is enabled.
*/
static void bnxt_tx_cmp_fast(struct bnxt_tx_queue *txq, int nr_pkts)
{
struct bnxt_tx_ring_info *txr = txq->tx_ring;
+ struct bnxt_ring *ring = txr->tx_ring_struct;
struct rte_mbuf **free = txq->free;
- uint16_t cons = txr->tx_cons;
+ uint16_t raw_cons = txr->tx_raw_cons;
unsigned int blk = 0;
int i, j;
for (i = 0; i < nr_pkts; i++) {
- struct bnxt_sw_tx_bd *tx_buf;
+ struct rte_mbuf **tx_buf;
unsigned short nr_bds;
- tx_buf = &txr->tx_buf_ring[cons];
- nr_bds = tx_buf->nr_bds;
+ tx_buf = &txr->tx_buf_ring[RING_IDX(ring, raw_cons)];
+ nr_bds = (*tx_buf)->nb_segs +
+ bnxt_xmit_need_long_bd(*tx_buf, txq);
for (j = 0; j < nr_bds; j++) {
- if (tx_buf->mbuf) {
+ if (*tx_buf) {
/* Add mbuf to the bulk free array */
- free[blk++] = tx_buf->mbuf;
- tx_buf->mbuf = NULL;
+ free[blk++] = *tx_buf;
+ *tx_buf = NULL;
}
- cons = RING_NEXT(txr->tx_ring_struct, cons);
- tx_buf = &txr->tx_buf_ring[cons];
+ raw_cons = RING_NEXT(raw_cons);
+ tx_buf = &txr->tx_buf_ring[RING_IDX(ring, raw_cons)];
}
}
if (blk)
rte_mempool_put_bulk(free[0]->pool, (void *)free, blk);
- txr->tx_cons = cons;
+ txr->tx_raw_cons = raw_cons;
}
static void bnxt_tx_cmp(struct bnxt_tx_queue *txq, int nr_pkts)
{
struct bnxt_tx_ring_info *txr = txq->tx_ring;
+ struct bnxt_ring *ring = txr->tx_ring_struct;
struct rte_mempool *pool = NULL;
struct rte_mbuf **free = txq->free;
- uint16_t cons = txr->tx_cons;
+ uint16_t raw_cons = txr->tx_raw_cons;
unsigned int blk = 0;
int i, j;
for (i = 0; i < nr_pkts; i++) {
struct rte_mbuf *mbuf;
- struct bnxt_sw_tx_bd *tx_buf = &txr->tx_buf_ring[cons];
- unsigned short nr_bds = tx_buf->nr_bds;
+ struct rte_mbuf **tx_buf;
+ unsigned short nr_bds;
+ tx_buf = &txr->tx_buf_ring[RING_IDX(ring, raw_cons)];
+ nr_bds = (*tx_buf)->nb_segs +
+ bnxt_xmit_need_long_bd(*tx_buf, txq);
for (j = 0; j < nr_bds; j++) {
- mbuf = tx_buf->mbuf;
- tx_buf->mbuf = NULL;
- cons = RING_NEXT(txr->tx_ring_struct, cons);
- tx_buf = &txr->tx_buf_ring[cons];
+ mbuf = *tx_buf;
+ *tx_buf = NULL;
+ raw_cons = RING_NEXT(raw_cons);
+ tx_buf = &txr->tx_buf_ring[RING_IDX(ring, raw_cons)];
if (!mbuf) /* long_bd's tx_buf ? */
continue;
if (blk)
rte_mempool_put_bulk(pool, (void *)free, blk);
- txr->tx_cons = cons;
+ txr->tx_raw_cons = raw_cons;
}
static int bnxt_handle_tx_cp(struct bnxt_tx_queue *txq)
{
+ uint32_t nb_tx_pkts = 0, cons, ring_mask, opaque;
struct bnxt_cp_ring_info *cpr = txq->cp_ring;
uint32_t raw_cons = cpr->cp_raw_cons;
- uint32_t cons;
- uint32_t nb_tx_pkts = 0;
+ struct bnxt_ring *cp_ring_struct;
struct tx_cmpl *txcmp;
- struct cmpl_base *cp_desc_ring = cpr->cp_desc_ring;
- struct bnxt_ring *cp_ring_struct = cpr->cp_ring_struct;
- uint32_t ring_mask = cp_ring_struct->ring_mask;
- uint32_t opaque = 0;
if (bnxt_tx_bds_in_hw(txq) < txq->tx_free_thresh)
return 0;
+ cp_ring_struct = cpr->cp_ring_struct;
+ ring_mask = cp_ring_struct->ring_mask;
+
do {
cons = RING_CMPL(ring_mask, raw_cons);
txcmp = (struct tx_cmpl *)&cpr->cp_desc_ring[cons];
- rte_prefetch_non_temporal(&cp_desc_ring[(cons + 2) &
- ring_mask]);
- if (!CMPL_VALID(txcmp, cpr->valid))
+ if (!bnxt_cpr_cmp_valid(txcmp, raw_cons, ring_mask + 1))
break;
- opaque = rte_cpu_to_le_32(txcmp->opaque);
- NEXT_CMPL(cpr, cons, cpr->valid, 1);
- rte_prefetch0(&cp_desc_ring[cons]);
+
+ opaque = rte_le_to_cpu_32(txcmp->opaque);
if (CMP_TYPE(txcmp) == TX_CMPL_TYPE_TX_L2)
nb_tx_pkts += opaque;
RTE_LOG_DP(ERR, PMD,
"Unhandled CMP type %02x\n",
CMP_TYPE(txcmp));
- raw_cons = cons;
+ raw_cons = NEXT_RAW_CMP(raw_cons);
} while (nb_tx_pkts < ring_mask);
if (nb_tx_pkts) {
- if (txq->offloads & DEV_TX_OFFLOAD_MBUF_FAST_FREE)
+ if (txq->offloads & RTE_ETH_TX_OFFLOAD_MBUF_FAST_FREE)
bnxt_tx_cmp_fast(txq, nb_tx_pkts);
else
bnxt_tx_cmp(txq, nb_tx_pkts);
if (likely(nb_tx_pkts)) {
/* Request a completion on the last packet */
last_txbd->flags_type &= ~TX_BD_LONG_FLAGS_NO_CMPL;
- bnxt_db_write(&txq->tx_ring->tx_db, txq->tx_ring->tx_prod);
+ bnxt_db_write(&txq->tx_ring->tx_db, txq->tx_ring->tx_raw_prod);
}
return nb_tx_pkts;
if (rc)
return rc;
+ bnxt_free_hwrm_tx_ring(bp, tx_queue_id);
+ rc = bnxt_alloc_hwrm_tx_ring(bp, tx_queue_id);
+ if (rc)
+ return rc;
+
dev->data->tx_queue_state[tx_queue_id] = RTE_ETH_QUEUE_STATE_STARTED;
txq->tx_started = true;
PMD_DRV_LOG(DEBUG, "Tx queue started\n");
return 0;
}
+
+/* Sweep the Tx completion queue till HWRM_DONE for ring flush is received.
+ * The mbufs will not be freed in this call.
+ * They will be freed during ring free as a part of mem cleanup.
+ */
+int bnxt_flush_tx_cmp(struct bnxt_cp_ring_info *cpr)
+{
+ uint32_t raw_cons = cpr->cp_raw_cons;
+ uint32_t cons;
+ uint32_t nb_tx_pkts = 0;
+ struct tx_cmpl *txcmp;
+ struct cmpl_base *cp_desc_ring = cpr->cp_desc_ring;
+ struct bnxt_ring *cp_ring_struct = cpr->cp_ring_struct;
+ uint32_t ring_mask = cp_ring_struct->ring_mask;
+ uint32_t opaque = 0;
+
+ do {
+ cons = RING_CMPL(ring_mask, raw_cons);
+ txcmp = (struct tx_cmpl *)&cp_desc_ring[cons];
+
+ opaque = rte_cpu_to_le_32(txcmp->opaque);
+ raw_cons = NEXT_RAW_CMP(raw_cons);
+
+ if (CMP_TYPE(txcmp) == TX_CMPL_TYPE_TX_L2)
+ nb_tx_pkts += opaque;
+ else if (CMP_TYPE(txcmp) == HWRM_CMPL_TYPE_HWRM_DONE)
+ return 1;
+ } while (nb_tx_pkts < ring_mask);
+
+ if (nb_tx_pkts) {
+ cpr->cp_raw_cons = raw_cons;
+ bnxt_db_cq(cpr);
+ }
+
+ return 0;
+}
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