rxq_ctrl = container_of((*priv->rxqs)[(*priv->reta_idx)[i]],
struct mlx5_rxq_ctrl, rxq);
- wqs[i] = rxq_ctrl->wq;
+ wqs[i] = rxq_ctrl->ibv->wq;
}
/* Get number of hash RX queues to configure. */
for (i = 0, hash_rxqs_n = 0; (i != ind_tables_n); ++i)
/* Iterate on segments. */
for (i = 0; (i != elts_n); ++i) {
struct rte_mbuf *buf;
- volatile struct mlx5_wqe_data_seg *scat =
- &(*rxq_ctrl->rxq.wqes)[i];
buf = rte_pktmbuf_alloc(rxq_ctrl->rxq.mp);
if (buf == NULL) {
DATA_LEN(buf) = rte_pktmbuf_tailroom(buf);
PKT_LEN(buf) = DATA_LEN(buf);
NB_SEGS(buf) = 1;
- /* scat->addr must be able to store a pointer. */
- assert(sizeof(scat->addr) >= sizeof(uintptr_t));
- *scat = (struct mlx5_wqe_data_seg){
- .addr =
- rte_cpu_to_be_64(rte_pktmbuf_mtod(buf, uintptr_t)),
- .byte_count = rte_cpu_to_be_32(DATA_LEN(buf)),
- .lkey = rxq_ctrl->mr->lkey,
- };
(*rxq_ctrl->rxq.elts)[i] = buf;
}
if (rxq_check_vec_support(&rxq_ctrl->rxq) > 0) {
struct mlx5_rxq_data *rxq = &rxq_ctrl->rxq;
struct rte_mbuf *mbuf_init = &rxq->fake_mbuf;
- assert(rxq->elts_n == rxq->cqe_n);
/* Initialize default rearm_data for vPMD. */
mbuf_init->data_off = RTE_PKTMBUF_HEADROOM;
rte_mbuf_refcnt_set(mbuf_init, 1);
mlx5_rxq_cleanup(struct mlx5_rxq_ctrl *rxq_ctrl)
{
DEBUG("cleaning up %p", (void *)rxq_ctrl);
- rxq_free_elts(rxq_ctrl);
- if (rxq_ctrl->wq != NULL)
- claim_zero(ibv_destroy_wq(rxq_ctrl->wq));
- if (rxq_ctrl->cq != NULL)
- claim_zero(ibv_destroy_cq(rxq_ctrl->cq));
- if (rxq_ctrl->channel != NULL)
- claim_zero(ibv_destroy_comp_channel(rxq_ctrl->channel));
- if (rxq_ctrl->mr != NULL)
- priv_mr_release(rxq_ctrl->priv, rxq_ctrl->mr);
+ if (rxq_ctrl->ibv)
+ mlx5_priv_rxq_ibv_release(rxq_ctrl->priv, rxq_ctrl->ibv);
memset(rxq_ctrl, 0, sizeof(*rxq_ctrl));
}
-/**
- * Initialize RX queue.
- *
- * @param tmpl
- * Pointer to RX queue control template.
- *
- * @return
- * 0 on success, errno value on failure.
- */
-static inline int
-rxq_setup(struct mlx5_rxq_ctrl *tmpl)
-{
- struct ibv_cq *ibcq = tmpl->cq;
- struct mlx5dv_cq cq_info;
- struct mlx5dv_rwq rwq;
- const uint16_t desc_n =
- (1 << tmpl->rxq.elts_n) + tmpl->priv->rx_vec_en *
- MLX5_VPMD_DESCS_PER_LOOP;
- struct rte_mbuf *(*elts)[desc_n] =
- rte_calloc_socket("RXQ", 1, sizeof(*elts), 0, tmpl->socket);
- struct mlx5dv_obj obj;
- int ret = 0;
-
- obj.cq.in = ibcq;
- obj.cq.out = &cq_info;
- obj.rwq.in = tmpl->wq;
- obj.rwq.out = &rwq;
- ret = mlx5dv_init_obj(&obj, MLX5DV_OBJ_CQ | MLX5DV_OBJ_RWQ);
- if (ret != 0) {
- return -EINVAL;
- }
- if (cq_info.cqe_size != RTE_CACHE_LINE_SIZE) {
- ERROR("Wrong MLX5_CQE_SIZE environment variable value: "
- "it should be set to %u", RTE_CACHE_LINE_SIZE);
- return EINVAL;
- }
- if (elts == NULL)
- return ENOMEM;
- tmpl->rxq.rq_db = rwq.dbrec;
- tmpl->rxq.cqe_n = log2above(cq_info.cqe_cnt);
- tmpl->rxq.cq_ci = 0;
- tmpl->rxq.rq_ci = 0;
- tmpl->rxq.rq_pi = 0;
- tmpl->rxq.cq_db = cq_info.dbrec;
- tmpl->rxq.wqes =
- (volatile struct mlx5_wqe_data_seg (*)[])
- (uintptr_t)rwq.buf;
- tmpl->rxq.cqes =
- (volatile struct mlx5_cqe (*)[])
- (uintptr_t)cq_info.buf;
- tmpl->rxq.elts = elts;
- tmpl->rxq.cq_uar = cq_info.cq_uar;
- tmpl->rxq.cqn = cq_info.cqn;
- tmpl->rxq.cq_arm_sn = 0;
- return 0;
-}
-
/**
* Configure a RX queue.
*
const struct rte_eth_rxconf *conf, struct rte_mempool *mp)
{
struct priv *priv = dev->data->dev_private;
+ const uint16_t desc_n =
+ desc + priv->rx_vec_en * MLX5_VPMD_DESCS_PER_LOOP;
struct mlx5_rxq_ctrl tmpl = {
.priv = priv,
.socket = socket,
.rxq = {
+ .elts = rte_calloc_socket("RXQ", 1,
+ desc_n *
+ sizeof(struct rte_mbuf *), 0,
+ socket),
.elts_n = log2above(desc),
.mp = mp,
.rss_hash = priv->rxqs_n > 1,
},
};
- struct ibv_wq_attr mod;
- union {
- struct ibv_cq_init_attr_ex cq;
- struct ibv_wq_init_attr wq;
- struct ibv_cq_ex cq_attr;
- } attr;
unsigned int mb_len = rte_pktmbuf_data_room_size(mp);
- unsigned int cqe_n = desc - 1;
- const uint16_t desc_n =
- desc + priv->rx_vec_en * MLX5_VPMD_DESCS_PER_LOOP;
struct rte_mbuf *(*elts)[desc_n] = NULL;
int ret = 0;
(void)conf; /* Thresholds configuration (ignored). */
+ if (dev->data->dev_conf.intr_conf.rxq)
+ tmpl.irq = 1;
/* Enable scattered packets support for this queue if necessary. */
assert(mb_len >= RTE_PKTMBUF_HEADROOM);
if (dev->data->dev_conf.rxmode.max_rx_pkt_len <=
if (priv->hw_csum_l2tun)
tmpl.rxq.csum_l2tun =
!!dev->data->dev_conf.rxmode.hw_ip_checksum;
- /* Use the entire RX mempool as the memory region. */
- tmpl.mr = priv_mr_get(priv, mp);
- if (tmpl.mr == NULL) {
- tmpl.mr = priv_mr_new(priv, mp);
- if (tmpl.mr == NULL) {
- ret = EINVAL;
- ERROR("%p: MR creation failure: %s",
- (void *)dev, strerror(ret));
- goto error;
- }
- }
- if (dev->data->dev_conf.intr_conf.rxq) {
- tmpl.channel = ibv_create_comp_channel(priv->ctx);
- if (tmpl.channel == NULL) {
- ret = ENOMEM;
- ERROR("%p: Rx interrupt completion channel creation"
- " failure: %s",
- (void *)dev, strerror(ret));
- goto error;
- }
- }
- attr.cq = (struct ibv_cq_init_attr_ex){
- .comp_mask = 0,
- };
- if (priv->cqe_comp) {
- attr.cq.comp_mask |= IBV_CQ_INIT_ATTR_MASK_FLAGS;
- attr.cq.flags |= MLX5DV_CQ_INIT_ATTR_MASK_COMPRESSED_CQE;
- /*
- * For vectorized Rx, it must not be doubled in order to
- * make cq_ci and rq_ci aligned.
- */
- if (rxq_check_vec_support(&tmpl.rxq) < 0)
- cqe_n = (desc * 2) - 1; /* Double the number of CQEs. */
- }
- tmpl.cq = ibv_create_cq(priv->ctx, cqe_n, NULL, tmpl.channel, 0);
- if (tmpl.cq == NULL) {
- ret = ENOMEM;
- ERROR("%p: CQ creation failure: %s",
- (void *)dev, strerror(ret));
- goto error;
- }
- DEBUG("priv->device_attr.max_qp_wr is %d",
- priv->device_attr.orig_attr.max_qp_wr);
- DEBUG("priv->device_attr.max_sge is %d",
- priv->device_attr.orig_attr.max_sge);
/* Configure VLAN stripping. */
tmpl.rxq.vlan_strip = (priv->hw_vlan_strip &&
!!dev->data->dev_conf.rxmode.hw_vlan_strip);
- attr.wq = (struct ibv_wq_init_attr){
- .wq_context = NULL, /* Could be useful in the future. */
- .wq_type = IBV_WQT_RQ,
- /* Max number of outstanding WRs. */
- .max_wr = desc >> tmpl.rxq.sges_n,
- /* Max number of scatter/gather elements in a WR. */
- .max_sge = 1 << tmpl.rxq.sges_n,
- .pd = priv->pd,
- .cq = tmpl.cq,
- .comp_mask =
- IBV_WQ_FLAGS_CVLAN_STRIPPING |
- 0,
- .create_flags = (tmpl.rxq.vlan_strip ?
- IBV_WQ_FLAGS_CVLAN_STRIPPING :
- 0),
- };
/* By default, FCS (CRC) is stripped by hardware. */
if (dev->data->dev_conf.rxmode.hw_strip_crc) {
tmpl.rxq.crc_present = 0;
} else if (priv->hw_fcs_strip) {
- /* Ask HW/Verbs to leave CRC in place when supported. */
- attr.wq.create_flags |= IBV_WQ_FLAGS_SCATTER_FCS;
- attr.wq.comp_mask |= IBV_WQ_INIT_ATTR_FLAGS;
tmpl.rxq.crc_present = 1;
} else {
WARN("%p: CRC stripping has been disabled but will still"
tmpl.rxq.crc_present ? "disabled" : "enabled",
tmpl.rxq.crc_present << 2);
#ifdef HAVE_IBV_WQ_FLAG_RX_END_PADDING
- if (!mlx5_getenv_int("MLX5_PMD_ENABLE_PADDING"))
+ if (!mlx5_getenv_int("MLX5_PMD_ENABLE_PADDING")) {
; /* Nothing else to do. */
- else if (priv->hw_padding) {
+ } else if (priv->hw_padding) {
INFO("%p: enabling packet padding on queue %p",
(void *)dev, (void *)rxq_ctrl);
- attr.wq.create_flags |= IBV_WQ_FLAG_RX_END_PADDING;
- attr.wq.comp_mask |= IBV_WQ_INIT_ATTR_FLAGS;
- } else
+ } else {
WARN("%p: packet padding has been requested but is not"
" supported, make sure MLNX_OFED and firmware are"
" up to date",
(void *)dev);
-#endif
-
- tmpl.wq = ibv_create_wq(priv->ctx, &attr.wq);
- if (tmpl.wq == NULL) {
- ret = (errno ? errno : EINVAL);
- ERROR("%p: WQ creation failure: %s",
- (void *)dev, strerror(ret));
- goto error;
- }
- /*
- * Make sure number of WRs*SGEs match expectations since a queue
- * cannot allocate more than "desc" buffers.
- */
- if (((int)attr.wq.max_wr != (desc >> tmpl.rxq.sges_n)) ||
- ((int)attr.wq.max_sge != (1 << tmpl.rxq.sges_n))) {
- ERROR("%p: requested %u*%u but got %u*%u WRs*SGEs",
- (void *)dev,
- (desc >> tmpl.rxq.sges_n), (1 << tmpl.rxq.sges_n),
- attr.wq.max_wr, attr.wq.max_sge);
- ret = EINVAL;
- goto error;
}
+#endif
/* Save port ID. */
tmpl.rxq.port_id = dev->data->port_id;
DEBUG("%p: RTE port ID: %u", (void *)rxq_ctrl, tmpl.rxq.port_id);
- /* Change queue state to ready. */
- mod = (struct ibv_wq_attr){
- .attr_mask = IBV_WQ_ATTR_STATE,
- .wq_state = IBV_WQS_RDY,
- };
- ret = ibv_modify_wq(tmpl.wq, &mod);
- if (ret) {
- ERROR("%p: WQ state to IBV_WQS_RDY failed: %s",
- (void *)dev, strerror(ret));
- goto error;
- }
- ret = rxq_setup(&tmpl);
- if (ret) {
- ERROR("%p: cannot initialize RX queue structure: %s",
- (void *)dev, strerror(ret));
- goto error;
- }
ret = rxq_alloc_elts(&tmpl, desc);
if (ret) {
ERROR("%p: RXQ allocation failed: %s",
rte_free(tmpl.rxq.elts);
tmpl.rxq.elts = elts;
*rxq_ctrl = tmpl;
- /* Update doorbell counter. */
- rxq_ctrl->rxq.rq_ci = desc >> rxq_ctrl->rxq.sges_n;
- rte_wmb();
- *rxq_ctrl->rxq.rq_db = rte_cpu_to_be_32(rxq_ctrl->rxq.rq_ci);
DEBUG("%p: rxq updated with %p", (void *)rxq_ctrl, (void *)&tmpl);
assert(ret == 0);
return 0;
error:
- elts = tmpl.rxq.elts;
+ rte_free(tmpl.rxq.elts);
mlx5_rxq_cleanup(&tmpl);
- rte_free(elts);
assert(ret > 0);
return ret;
}
}
}
ret = rxq_ctrl_setup(dev, rxq_ctrl, desc, socket, conf, mp);
- if (ret)
+ if (ret) {
rte_free(rxq_ctrl);
- else {
- rxq_ctrl->rxq.stats.idx = idx;
- DEBUG("%p: adding RX queue %p to list",
- (void *)dev, (void *)rxq_ctrl);
- (*priv->rxqs)[idx] = &rxq_ctrl->rxq;
+ goto out;
+ }
+ rxq_ctrl->rxq.stats.idx = idx;
+ DEBUG("%p: adding RX queue %p to list",
+ (void *)dev, (void *)rxq_ctrl);
+ (*priv->rxqs)[idx] = &rxq_ctrl->rxq;
+ rxq_ctrl->ibv = mlx5_priv_rxq_ibv_new(priv, idx);
+ if (!rxq_ctrl->ibv) {
+ ret = EAGAIN;
+ goto out;
}
+out:
priv_unlock(priv);
return -ret;
}
rxq_ctrl = container_of(rxq, struct mlx5_rxq_ctrl, rxq);
priv = rxq_ctrl->priv;
priv_lock(priv);
- if (priv_flow_rxq_in_use(priv, rxq))
+ if (!mlx5_priv_rxq_ibv_releasable(priv, rxq_ctrl->ibv))
rte_panic("Rx queue %p is still used by a flow and cannot be"
" removed\n", (void *)rxq_ctrl);
for (i = 0; (i != priv->rxqs_n); ++i)
}
intr_handle->type = RTE_INTR_HANDLE_EXT;
for (i = 0; i != n; ++i) {
- struct mlx5_rxq_data *rxq = (*priv->rxqs)[i];
- struct mlx5_rxq_ctrl *rxq_ctrl =
- container_of(rxq, struct mlx5_rxq_ctrl, rxq);
+ /* This rxq ibv must not be released in this function. */
+ struct mlx5_rxq_ibv *rxq_ibv = mlx5_priv_rxq_ibv_get(priv, i);
int fd;
int flags;
int rc;
/* Skip queues that cannot request interrupts. */
- if (!rxq || !rxq_ctrl->channel) {
+ if (!rxq_ibv || !rxq_ibv->channel) {
/* Use invalid intr_vec[] index to disable entry. */
intr_handle->intr_vec[i] =
RTE_INTR_VEC_RXTX_OFFSET +
priv_rx_intr_vec_disable(priv);
return -1;
}
- fd = rxq_ctrl->channel->fd;
+ fd = rxq_ibv->channel->fd;
flags = fcntl(fd, F_GETFL);
rc = fcntl(fd, F_SETFL, flags | O_NONBLOCK);
if (rc < 0) {
priv_rx_intr_vec_disable(struct priv *priv)
{
struct rte_intr_handle *intr_handle = priv->dev->intr_handle;
+ unsigned int i;
+ unsigned int rxqs_n = priv->rxqs_n;
+ unsigned int n = RTE_MIN(rxqs_n, (uint32_t)RTE_MAX_RXTX_INTR_VEC_ID);
+
+ if (!priv->dev->data->dev_conf.intr_conf.rxq)
+ return;
+ for (i = 0; i != n; ++i) {
+ struct mlx5_rxq_ctrl *rxq_ctrl;
+ struct mlx5_rxq_data *rxq_data;
+ if (intr_handle->intr_vec[i] == RTE_INTR_VEC_RXTX_OFFSET +
+ RTE_MAX_RXTX_INTR_VEC_ID)
+ continue;
+ /**
+ * Need to access directly the queue to release the reference
+ * kept in priv_rx_intr_vec_enable().
+ */
+ rxq_data = (*priv->rxqs)[i];
+ rxq_ctrl = container_of(rxq_data, struct mlx5_rxq_ctrl, rxq);
+ mlx5_priv_rxq_ibv_release(priv, rxq_ctrl->ibv);
+ }
rte_intr_free_epoll_fd(intr_handle);
free(intr_handle->intr_vec);
intr_handle->nb_efd = 0;
mlx5_rx_intr_enable(struct rte_eth_dev *dev, uint16_t rx_queue_id)
{
struct priv *priv = mlx5_get_priv(dev);
- struct mlx5_rxq_data *rxq = (*priv->rxqs)[rx_queue_id];
- struct mlx5_rxq_ctrl *rxq_ctrl =
- container_of(rxq, struct mlx5_rxq_ctrl, rxq);
+ struct mlx5_rxq_data *rxq_data;
+ struct mlx5_rxq_ctrl *rxq_ctrl;
int ret = 0;
- if (!rxq || !rxq_ctrl->channel) {
+ priv_lock(priv);
+ rxq_data = (*priv->rxqs)[rx_queue_id];
+ if (!rxq_data) {
ret = EINVAL;
- } else {
- mlx5_arm_cq(rxq, rxq->cq_arm_sn);
+ goto exit;
+ }
+ rxq_ctrl = container_of(rxq_data, struct mlx5_rxq_ctrl, rxq);
+ if (rxq_ctrl->irq) {
+ struct mlx5_rxq_ibv *rxq_ibv;
+
+ rxq_ibv = mlx5_priv_rxq_ibv_get(priv, rx_queue_id);
+ if (!rxq_ibv) {
+ ret = EINVAL;
+ goto exit;
+ }
+ mlx5_arm_cq(rxq_data, rxq_data->cq_arm_sn);
+ mlx5_priv_rxq_ibv_release(priv, rxq_ibv);
}
+exit:
+ priv_unlock(priv);
if (ret)
WARN("unable to arm interrupt on rx queue %d", rx_queue_id);
return -ret;
mlx5_rx_intr_disable(struct rte_eth_dev *dev, uint16_t rx_queue_id)
{
struct priv *priv = mlx5_get_priv(dev);
- struct mlx5_rxq_data *rxq = (*priv->rxqs)[rx_queue_id];
- struct mlx5_rxq_ctrl *rxq_ctrl =
- container_of(rxq, struct mlx5_rxq_ctrl, rxq);
+ struct mlx5_rxq_data *rxq_data;
+ struct mlx5_rxq_ctrl *rxq_ctrl;
+ struct mlx5_rxq_ibv *rxq_ibv = NULL;
struct ibv_cq *ev_cq;
void *ev_ctx;
- int ret;
+ int ret = 0;
- if (!rxq || !rxq_ctrl->channel) {
+ priv_lock(priv);
+ rxq_data = (*priv->rxqs)[rx_queue_id];
+ if (!rxq_data) {
ret = EINVAL;
- } else {
- ret = ibv_get_cq_event(rxq_ctrl->cq->channel, &ev_cq, &ev_ctx);
- rxq->cq_arm_sn++;
- if (ret || ev_cq != rxq_ctrl->cq)
- ret = EINVAL;
+ goto exit;
+ }
+ rxq_ctrl = container_of(rxq_data, struct mlx5_rxq_ctrl, rxq);
+ if (!rxq_ctrl->irq)
+ goto exit;
+ rxq_ibv = mlx5_priv_rxq_ibv_get(priv, rx_queue_id);
+ if (!rxq_ibv) {
+ ret = EINVAL;
+ goto exit;
+ }
+ ret = ibv_get_cq_event(rxq_ibv->channel, &ev_cq, &ev_ctx);
+ if (ret || ev_cq != rxq_ibv->cq) {
+ ret = EINVAL;
+ goto exit;
}
+ rxq_data->cq_arm_sn++;
+ ibv_ack_cq_events(rxq_ibv->cq, 1);
+exit:
+ if (rxq_ibv)
+ mlx5_priv_rxq_ibv_release(priv, rxq_ibv);
+ priv_unlock(priv);
if (ret)
WARN("unable to disable interrupt on rx queue %d",
rx_queue_id);
- else
- ibv_ack_cq_events(rxq_ctrl->cq, 1);
return -ret;
}
+
+/**
+ * Create the Rx queue Verbs object.
+ *
+ * @param priv
+ * Pointer to private structure.
+ * @param idx
+ * Queue index in DPDK Rx queue array
+ *
+ * @return
+ * The Verbs object initialised if it can be created.
+ */
+struct mlx5_rxq_ibv*
+mlx5_priv_rxq_ibv_new(struct priv *priv, uint16_t idx)
+{
+ struct mlx5_rxq_data *rxq_data = (*priv->rxqs)[idx];
+ struct mlx5_rxq_ctrl *rxq_ctrl =
+ container_of(rxq_data, struct mlx5_rxq_ctrl, rxq);
+ struct ibv_wq_attr mod;
+ union {
+ struct ibv_cq_init_attr_ex cq;
+ struct ibv_wq_init_attr wq;
+ struct ibv_cq_ex cq_attr;
+ } attr;
+ unsigned int cqe_n = (1 << rxq_data->elts_n) - 1;
+ struct mlx5_rxq_ibv *tmpl;
+ struct mlx5dv_cq cq_info;
+ struct mlx5dv_rwq rwq;
+ unsigned int i;
+ int ret = 0;
+ struct mlx5dv_obj obj;
+
+ assert(rxq_data);
+ assert(!rxq_ctrl->ibv);
+ tmpl = rte_calloc_socket(__func__, 1, sizeof(*tmpl), 0,
+ rxq_ctrl->socket);
+ if (!tmpl) {
+ ERROR("%p: cannot allocate verbs resources",
+ (void *)rxq_ctrl);
+ goto error;
+ }
+ tmpl->rxq_ctrl = rxq_ctrl;
+ /* Use the entire RX mempool as the memory region. */
+ tmpl->mr = priv_mr_get(priv, rxq_data->mp);
+ if (!tmpl->mr) {
+ tmpl->mr = priv_mr_new(priv, rxq_data->mp);
+ if (!tmpl->mr) {
+ ERROR("%p: MR creation failure", (void *)rxq_ctrl);
+ goto error;
+ }
+ }
+ if (rxq_ctrl->irq) {
+ tmpl->channel = ibv_create_comp_channel(priv->ctx);
+ if (!tmpl->channel) {
+ ERROR("%p: Comp Channel creation failure",
+ (void *)rxq_ctrl);
+ goto error;
+ }
+ }
+ attr.cq = (struct ibv_cq_init_attr_ex){
+ .comp_mask = 0,
+ };
+ if (priv->cqe_comp) {
+ attr.cq.comp_mask |= IBV_CQ_INIT_ATTR_MASK_FLAGS;
+ attr.cq.flags |= MLX5DV_CQ_INIT_ATTR_MASK_COMPRESSED_CQE;
+ /*
+ * For vectorized Rx, it must not be doubled in order to
+ * make cq_ci and rq_ci aligned.
+ */
+ if (rxq_check_vec_support(rxq_data) < 0)
+ cqe_n *= 2;
+ }
+ tmpl->cq = ibv_create_cq(priv->ctx, cqe_n, NULL, tmpl->channel, 0);
+ if (tmpl->cq == NULL) {
+ ERROR("%p: CQ creation failure", (void *)rxq_ctrl);
+ goto error;
+ }
+ DEBUG("priv->device_attr.max_qp_wr is %d",
+ priv->device_attr.orig_attr.max_qp_wr);
+ DEBUG("priv->device_attr.max_sge is %d",
+ priv->device_attr.orig_attr.max_sge);
+ attr.wq = (struct ibv_wq_init_attr){
+ .wq_context = NULL, /* Could be useful in the future. */
+ .wq_type = IBV_WQT_RQ,
+ /* Max number of outstanding WRs. */
+ .max_wr = (1 << rxq_data->elts_n) >> rxq_data->sges_n,
+ /* Max number of scatter/gather elements in a WR. */
+ .max_sge = 1 << rxq_data->sges_n,
+ .pd = priv->pd,
+ .cq = tmpl->cq,
+ .comp_mask =
+ IBV_WQ_FLAGS_CVLAN_STRIPPING |
+ 0,
+ .create_flags = (rxq_data->vlan_strip ?
+ IBV_WQ_FLAGS_CVLAN_STRIPPING :
+ 0),
+ };
+ /* By default, FCS (CRC) is stripped by hardware. */
+ if (rxq_data->crc_present) {
+ attr.wq.create_flags |= IBV_WQ_FLAGS_SCATTER_FCS;
+ attr.wq.comp_mask |= IBV_WQ_INIT_ATTR_FLAGS;
+ }
+#ifdef HAVE_IBV_WQ_FLAG_RX_END_PADDING
+ if (priv->hw_padding) {
+ attr.wq.create_flags |= IBV_WQ_FLAG_RX_END_PADDING;
+ attr.wq.comp_mask |= IBV_WQ_INIT_ATTR_FLAGS;
+ }
+#endif
+ tmpl->wq = ibv_create_wq(priv->ctx, &attr.wq);
+ if (tmpl->wq == NULL) {
+ ERROR("%p: WQ creation failure", (void *)rxq_ctrl);
+ goto error;
+ }
+ /*
+ * Make sure number of WRs*SGEs match expectations since a queue
+ * cannot allocate more than "desc" buffers.
+ */
+ if (((int)attr.wq.max_wr !=
+ ((1 << rxq_data->elts_n) >> rxq_data->sges_n)) ||
+ ((int)attr.wq.max_sge != (1 << rxq_data->sges_n))) {
+ ERROR("%p: requested %u*%u but got %u*%u WRs*SGEs",
+ (void *)rxq_ctrl,
+ ((1 << rxq_data->elts_n) >> rxq_data->sges_n),
+ (1 << rxq_data->sges_n),
+ attr.wq.max_wr, attr.wq.max_sge);
+ goto error;
+ }
+ /* Change queue state to ready. */
+ mod = (struct ibv_wq_attr){
+ .attr_mask = IBV_WQ_ATTR_STATE,
+ .wq_state = IBV_WQS_RDY,
+ };
+ ret = ibv_modify_wq(tmpl->wq, &mod);
+ if (ret) {
+ ERROR("%p: WQ state to IBV_WQS_RDY failed",
+ (void *)rxq_ctrl);
+ goto error;
+ }
+ obj.cq.in = tmpl->cq;
+ obj.cq.out = &cq_info;
+ obj.rwq.in = tmpl->wq;
+ obj.rwq.out = &rwq;
+ ret = mlx5dv_init_obj(&obj, MLX5DV_OBJ_CQ | MLX5DV_OBJ_RWQ);
+ if (ret != 0)
+ goto error;
+ if (cq_info.cqe_size != RTE_CACHE_LINE_SIZE) {
+ ERROR("Wrong MLX5_CQE_SIZE environment variable value: "
+ "it should be set to %u", RTE_CACHE_LINE_SIZE);
+ goto error;
+ }
+ /* Fill the rings. */
+ rxq_data->wqes = (volatile struct mlx5_wqe_data_seg (*)[])
+ (uintptr_t)rwq.buf;
+ for (i = 0; (i != (unsigned int)(1 << rxq_data->elts_n)); ++i) {
+ struct rte_mbuf *buf = (*rxq_data->elts)[i];
+ volatile struct mlx5_wqe_data_seg *scat = &(*rxq_data->wqes)[i];
+
+ /* scat->addr must be able to store a pointer. */
+ assert(sizeof(scat->addr) >= sizeof(uintptr_t));
+ *scat = (struct mlx5_wqe_data_seg){
+ .addr = rte_cpu_to_be_64(rte_pktmbuf_mtod(buf,
+ uintptr_t)),
+ .byte_count = rte_cpu_to_be_32(DATA_LEN(buf)),
+ .lkey = tmpl->mr->lkey,
+ };
+ }
+ rxq_data->rq_db = rwq.dbrec;
+ rxq_data->cqe_n = log2above(cq_info.cqe_cnt);
+ rxq_data->cq_ci = 0;
+ rxq_data->rq_ci = 0;
+ rxq_data->rq_pi = 0;
+ rxq_data->zip = (struct rxq_zip){
+ .ai = 0,
+ };
+ rxq_data->cq_db = cq_info.dbrec;
+ rxq_data->cqes = (volatile struct mlx5_cqe (*)[])(uintptr_t)cq_info.buf;
+ /* Update doorbell counter. */
+ rxq_data->rq_ci = (1 << rxq_data->elts_n) >> rxq_data->sges_n;
+ rte_wmb();
+ *rxq_data->rq_db = rte_cpu_to_be_32(rxq_data->rq_ci);
+ DEBUG("%p: rxq updated with %p", (void *)rxq_ctrl, (void *)&tmpl);
+ rte_atomic32_inc(&tmpl->refcnt);
+ DEBUG("%p: Verbs Rx queue %p: refcnt %d", (void *)priv,
+ (void *)tmpl, rte_atomic32_read(&tmpl->refcnt));
+ LIST_INSERT_HEAD(&priv->rxqsibv, tmpl, next);
+ return tmpl;
+error:
+ if (tmpl->wq)
+ claim_zero(ibv_destroy_wq(tmpl->wq));
+ if (tmpl->cq)
+ claim_zero(ibv_destroy_cq(tmpl->cq));
+ if (tmpl->channel)
+ claim_zero(ibv_destroy_comp_channel(tmpl->channel));
+ if (tmpl->mr)
+ priv_mr_release(priv, tmpl->mr);
+ return NULL;
+}
+
+/**
+ * Get an Rx queue Verbs object.
+ *
+ * @param priv
+ * Pointer to private structure.
+ * @param idx
+ * Queue index in DPDK Rx queue array
+ *
+ * @return
+ * The Verbs object if it exists.
+ */
+struct mlx5_rxq_ibv*
+mlx5_priv_rxq_ibv_get(struct priv *priv, uint16_t idx)
+{
+ struct mlx5_rxq_data *rxq_data = (*priv->rxqs)[idx];
+ struct mlx5_rxq_ctrl *rxq_ctrl;
+
+ if (idx >= priv->rxqs_n)
+ return NULL;
+ if (!rxq_data)
+ return NULL;
+ rxq_ctrl = container_of(rxq_data, struct mlx5_rxq_ctrl, rxq);
+ if (rxq_ctrl->ibv) {
+ priv_mr_get(priv, rxq_data->mp);
+ rte_atomic32_inc(&rxq_ctrl->ibv->refcnt);
+ DEBUG("%p: Verbs Rx queue %p: refcnt %d", (void *)priv,
+ (void *)rxq_ctrl->ibv,
+ rte_atomic32_read(&rxq_ctrl->ibv->refcnt));
+ }
+ return rxq_ctrl->ibv;
+}
+
+/**
+ * Release an Rx verbs queue object.
+ *
+ * @param priv
+ * Pointer to private structure.
+ * @param rxq_ibv
+ * Verbs Rx queue object.
+ *
+ * @return
+ * 0 on success, errno value on failure.
+ */
+int
+mlx5_priv_rxq_ibv_release(struct priv *priv, struct mlx5_rxq_ibv *rxq_ibv)
+{
+ int ret;
+
+ assert(rxq_ibv);
+ assert(rxq_ibv->wq);
+ assert(rxq_ibv->cq);
+ assert(rxq_ibv->mr);
+ ret = priv_mr_release(priv, rxq_ibv->mr);
+ if (!ret)
+ rxq_ibv->mr = NULL;
+ DEBUG("%p: Verbs Rx queue %p: refcnt %d", (void *)priv,
+ (void *)rxq_ibv, rte_atomic32_read(&rxq_ibv->refcnt));
+ if (rte_atomic32_dec_and_test(&rxq_ibv->refcnt)) {
+ rxq_free_elts(rxq_ibv->rxq_ctrl);
+ claim_zero(ibv_destroy_wq(rxq_ibv->wq));
+ claim_zero(ibv_destroy_cq(rxq_ibv->cq));
+ if (rxq_ibv->channel)
+ claim_zero(ibv_destroy_comp_channel(rxq_ibv->channel));
+ LIST_REMOVE(rxq_ibv, next);
+ rte_free(rxq_ibv);
+ return 0;
+ }
+ return EBUSY;
+}
+
+/**
+ * Verify the Verbs Rx queue list is empty
+ *
+ * @param priv
+ * Pointer to private structure.
+ *
+ * @return the number of object not released.
+ */
+int
+mlx5_priv_rxq_ibv_verify(struct priv *priv)
+{
+ int ret = 0;
+ struct mlx5_rxq_ibv *rxq_ibv;
+
+ LIST_FOREACH(rxq_ibv, &priv->rxqsibv, next) {
+ DEBUG("%p: Verbs Rx queue %p still referenced", (void *)priv,
+ (void *)rxq_ibv);
+ ++ret;
+ }
+ return ret;
+}
+
+/**
+ * Return true if a single reference exists on the object.
+ *
+ * @param priv
+ * Pointer to private structure.
+ * @param rxq_ibv
+ * Verbs Rx queue object.
+ */
+int
+mlx5_priv_rxq_ibv_releasable(struct priv *priv, struct mlx5_rxq_ibv *rxq_ibv)
+{
+ (void)priv;
+ assert(rxq_ibv);
+ return (rte_atomic32_read(&rxq_ibv->refcnt) == 1);
+}
git.droids-corp.org / dpdk.git / blobdiff