uint16_t switch_port_id;
};
+struct sfc_repr_rxq {
+ /* Datapath members */
+ struct rte_ring *ring;
+};
+
+struct sfc_repr_txq {
+ /* Datapath members */
+ struct rte_ring *ring;
+ efx_mport_id_t egress_mport;
+};
+
/** Primary process representor private data */
struct sfc_repr {
/**
SFC_GENERIC_LOG(ERR, __VA_ARGS__); \
} while (0)
+#define sfcr_warn(sr, ...) \
+ do { \
+ const struct sfc_repr *_sr = (sr); \
+ \
+ (void)_sr; \
+ SFC_GENERIC_LOG(WARNING, __VA_ARGS__); \
+ } while (0)
+
#define sfcr_info(sr, ...) \
do { \
const struct sfc_repr *_sr = (sr); \
return 0;
}
+static int
+sfc_repr_ring_create(uint16_t pf_port_id, uint16_t repr_id,
+ const char *type_name, uint16_t qid, uint16_t nb_desc,
+ unsigned int socket_id, struct rte_ring **ring)
+{
+ char ring_name[RTE_RING_NAMESIZE];
+ int ret;
+
+ ret = snprintf(ring_name, sizeof(ring_name), "sfc_%u_repr_%u_%sq%u",
+ pf_port_id, repr_id, type_name, qid);
+ if (ret >= (int)sizeof(ring_name))
+ return -ENAMETOOLONG;
+
+ /*
+ * Single producer/consumer rings are used since the API for Tx/Rx
+ * packet burst for representors are guaranteed to be called from
+ * a single thread, and the user of the other end (representor proxy)
+ * is also single-threaded.
+ */
+ *ring = rte_ring_create(ring_name, nb_desc, socket_id,
+ RING_F_SP_ENQ | RING_F_SC_DEQ);
+ if (*ring == NULL)
+ return -rte_errno;
+
+ return 0;
+}
+
+static int
+sfc_repr_rx_qcheck_conf(struct sfc_repr *sr,
+ const struct rte_eth_rxconf *rx_conf)
+{
+ int ret = 0;
+
+ sfcr_info(sr, "entry");
+
+ if (rx_conf->rx_thresh.pthresh != 0 ||
+ rx_conf->rx_thresh.hthresh != 0 ||
+ rx_conf->rx_thresh.wthresh != 0) {
+ sfcr_warn(sr,
+ "RxQ prefetch/host/writeback thresholds are not supported");
+ }
+
+ if (rx_conf->rx_free_thresh != 0)
+ sfcr_warn(sr, "RxQ free threshold is not supported");
+
+ if (rx_conf->rx_drop_en == 0)
+ sfcr_warn(sr, "RxQ drop disable is not supported");
+
+ if (rx_conf->rx_deferred_start) {
+ sfcr_err(sr, "Deferred start is not supported");
+ ret = -EINVAL;
+ }
+
+ sfcr_info(sr, "done: %s", rte_strerror(-ret));
+
+ return ret;
+}
+
+static int
+sfc_repr_rx_queue_setup(struct rte_eth_dev *dev, uint16_t rx_queue_id,
+ uint16_t nb_rx_desc, unsigned int socket_id,
+ __rte_unused const struct rte_eth_rxconf *rx_conf,
+ struct rte_mempool *mb_pool)
+{
+ struct sfc_repr_shared *srs = sfc_repr_shared_by_eth_dev(dev);
+ struct sfc_repr *sr = sfc_repr_by_eth_dev(dev);
+ struct sfc_repr_rxq *rxq;
+ int ret;
+
+ sfcr_info(sr, "entry");
+
+ ret = sfc_repr_rx_qcheck_conf(sr, rx_conf);
+ if (ret != 0)
+ goto fail_check_conf;
+
+ ret = -ENOMEM;
+ rxq = rte_zmalloc_socket("sfc-repr-rxq", sizeof(*rxq),
+ RTE_CACHE_LINE_SIZE, socket_id);
+ if (rxq == NULL) {
+ sfcr_err(sr, "%s() failed to alloc RxQ", __func__);
+ goto fail_rxq_alloc;
+ }
+
+ ret = sfc_repr_ring_create(srs->pf_port_id, srs->repr_id,
+ "rx", rx_queue_id, nb_rx_desc,
+ socket_id, &rxq->ring);
+ if (ret != 0) {
+ sfcr_err(sr, "%s() failed to create ring", __func__);
+ goto fail_ring_create;
+ }
+
+ ret = sfc_repr_proxy_add_rxq(srs->pf_port_id, srs->repr_id,
+ rx_queue_id, rxq->ring, mb_pool);
+ if (ret != 0) {
+ SFC_ASSERT(ret > 0);
+ ret = -ret;
+ sfcr_err(sr, "%s() failed to add proxy RxQ", __func__);
+ goto fail_proxy_add_rxq;
+ }
+
+ dev->data->rx_queues[rx_queue_id] = rxq;
+
+ sfcr_info(sr, "done");
+
+ return 0;
+
+fail_proxy_add_rxq:
+ rte_ring_free(rxq->ring);
+
+fail_ring_create:
+ rte_free(rxq);
+
+fail_rxq_alloc:
+fail_check_conf:
+ sfcr_err(sr, "%s() failed: %s", __func__, rte_strerror(-ret));
+ return ret;
+}
+
+static void
+sfc_repr_rx_queue_release(struct rte_eth_dev *dev, uint16_t rx_queue_id)
+{
+ struct sfc_repr_shared *srs = sfc_repr_shared_by_eth_dev(dev);
+ struct sfc_repr_rxq *rxq = dev->data->rx_queues[rx_queue_id];
+
+ sfc_repr_proxy_del_rxq(srs->pf_port_id, srs->repr_id, rx_queue_id);
+ rte_ring_free(rxq->ring);
+ rte_free(rxq);
+}
+
+static int
+sfc_repr_tx_qcheck_conf(struct sfc_repr *sr,
+ const struct rte_eth_txconf *tx_conf)
+{
+ int ret = 0;
+
+ sfcr_info(sr, "entry");
+
+ if (tx_conf->tx_rs_thresh != 0)
+ sfcr_warn(sr, "RS bit in transmit descriptor is not supported");
+
+ if (tx_conf->tx_free_thresh != 0)
+ sfcr_warn(sr, "TxQ free threshold is not supported");
+
+ if (tx_conf->tx_thresh.pthresh != 0 ||
+ tx_conf->tx_thresh.hthresh != 0 ||
+ tx_conf->tx_thresh.wthresh != 0) {
+ sfcr_warn(sr,
+ "prefetch/host/writeback thresholds are not supported");
+ }
+
+ if (tx_conf->tx_deferred_start) {
+ sfcr_err(sr, "Deferred start is not supported");
+ ret = -EINVAL;
+ }
+
+ sfcr_info(sr, "done: %s", rte_strerror(-ret));
+
+ return ret;
+}
+
+static int
+sfc_repr_tx_queue_setup(struct rte_eth_dev *dev, uint16_t tx_queue_id,
+ uint16_t nb_tx_desc, unsigned int socket_id,
+ const struct rte_eth_txconf *tx_conf)
+{
+ struct sfc_repr_shared *srs = sfc_repr_shared_by_eth_dev(dev);
+ struct sfc_repr *sr = sfc_repr_by_eth_dev(dev);
+ struct sfc_repr_txq *txq;
+ int ret;
+
+ sfcr_info(sr, "entry");
+
+ ret = sfc_repr_tx_qcheck_conf(sr, tx_conf);
+ if (ret != 0)
+ goto fail_check_conf;
+
+ ret = -ENOMEM;
+ txq = rte_zmalloc_socket("sfc-repr-txq", sizeof(*txq),
+ RTE_CACHE_LINE_SIZE, socket_id);
+ if (txq == NULL)
+ goto fail_txq_alloc;
+
+ ret = sfc_repr_ring_create(srs->pf_port_id, srs->repr_id,
+ "tx", tx_queue_id, nb_tx_desc,
+ socket_id, &txq->ring);
+ if (ret != 0)
+ goto fail_ring_create;
+
+ ret = sfc_repr_proxy_add_txq(srs->pf_port_id, srs->repr_id,
+ tx_queue_id, txq->ring,
+ &txq->egress_mport);
+ if (ret != 0)
+ goto fail_proxy_add_txq;
+
+ dev->data->tx_queues[tx_queue_id] = txq;
+
+ sfcr_info(sr, "done");
+
+ return 0;
+
+fail_proxy_add_txq:
+ rte_ring_free(txq->ring);
+
+fail_ring_create:
+ rte_free(txq);
+
+fail_txq_alloc:
+fail_check_conf:
+ sfcr_err(sr, "%s() failed: %s", __func__, rte_strerror(-ret));
+ return ret;
+}
+
+static void
+sfc_repr_tx_queue_release(struct rte_eth_dev *dev, uint16_t tx_queue_id)
+{
+ struct sfc_repr_shared *srs = sfc_repr_shared_by_eth_dev(dev);
+ struct sfc_repr_txq *txq = dev->data->tx_queues[tx_queue_id];
+
+ sfc_repr_proxy_del_txq(srs->pf_port_id, srs->repr_id, tx_queue_id);
+ rte_ring_free(txq->ring);
+ rte_free(txq);
+}
+
static void
sfc_repr_close(struct sfc_repr *sr)
{
{
struct sfc_repr *sr = sfc_repr_by_eth_dev(dev);
struct sfc_repr_shared *srs = sfc_repr_shared_by_eth_dev(dev);
+ unsigned int i;
sfcr_info(sr, "entry");
break;
}
+ for (i = 0; i < dev->data->nb_rx_queues; i++) {
+ sfc_repr_rx_queue_release(dev, i);
+ dev->data->rx_queues[i] = NULL;
+ }
+
+ for (i = 0; i < dev->data->nb_tx_queues; i++) {
+ sfc_repr_tx_queue_release(dev, i);
+ dev->data->tx_queues[i] = NULL;
+ }
+
/*
* Cleanup all resources.
* Rollback primary process sfc_repr_eth_dev_init() below.
.dev_configure = sfc_repr_dev_configure,
.dev_close = sfc_repr_dev_close,
.dev_infos_get = sfc_repr_dev_infos_get,
+ .rx_queue_setup = sfc_repr_rx_queue_setup,
+ .rx_queue_release = sfc_repr_rx_queue_release,
+ .tx_queue_setup = sfc_repr_tx_queue_setup,
+ .tx_queue_release = sfc_repr_tx_queue_release,
};
return rc;
}
+
+int
+sfc_repr_proxy_add_rxq(uint16_t pf_port_id, uint16_t repr_id,
+ uint16_t queue_id, struct rte_ring *rx_ring,
+ struct rte_mempool *mp)
+{
+ struct sfc_repr_proxy_port *port;
+ struct sfc_repr_proxy_rxq *rxq;
+ struct sfc_repr_proxy *rp;
+ struct sfc_adapter *sa;
+
+ sa = sfc_get_adapter_by_pf_port_id(pf_port_id);
+ rp = sfc_repr_proxy_by_adapter(sa);
+
+ sfc_log_init(sa, "entry");
+
+ port = sfc_repr_proxy_find_port(rp, repr_id);
+ if (port == NULL) {
+ sfc_err(sa, "%s() failed: no such port", __func__);
+ return ENOENT;
+ }
+
+ rxq = &port->rxq[queue_id];
+ if (rp->dp_rxq[queue_id].mp != NULL && rp->dp_rxq[queue_id].mp != mp) {
+ sfc_err(sa, "multiple mempools per queue are not supported");
+ sfc_put_adapter(sa);
+ return ENOTSUP;
+ }
+
+ rxq->ring = rx_ring;
+ rxq->mb_pool = mp;
+ rp->dp_rxq[queue_id].mp = mp;
+ rp->dp_rxq[queue_id].ref_count++;
+
+ sfc_log_init(sa, "done");
+ sfc_put_adapter(sa);
+
+ return 0;
+}
+
+void
+sfc_repr_proxy_del_rxq(uint16_t pf_port_id, uint16_t repr_id,
+ uint16_t queue_id)
+{
+ struct sfc_repr_proxy_port *port;
+ struct sfc_repr_proxy_rxq *rxq;
+ struct sfc_repr_proxy *rp;
+ struct sfc_adapter *sa;
+
+ sa = sfc_get_adapter_by_pf_port_id(pf_port_id);
+ rp = sfc_repr_proxy_by_adapter(sa);
+
+ sfc_log_init(sa, "entry");
+
+ port = sfc_repr_proxy_find_port(rp, repr_id);
+ if (port == NULL) {
+ sfc_err(sa, "%s() failed: no such port", __func__);
+ return;
+ }
+
+ rxq = &port->rxq[queue_id];
+
+ rxq->ring = NULL;
+ rxq->mb_pool = NULL;
+ rp->dp_rxq[queue_id].ref_count--;
+ if (rp->dp_rxq[queue_id].ref_count == 0)
+ rp->dp_rxq[queue_id].mp = NULL;
+
+ sfc_log_init(sa, "done");
+ sfc_put_adapter(sa);
+}
+
+int
+sfc_repr_proxy_add_txq(uint16_t pf_port_id, uint16_t repr_id,
+ uint16_t queue_id, struct rte_ring *tx_ring,
+ efx_mport_id_t *egress_mport)
+{
+ struct sfc_repr_proxy_port *port;
+ struct sfc_repr_proxy_txq *txq;
+ struct sfc_repr_proxy *rp;
+ struct sfc_adapter *sa;
+
+ sa = sfc_get_adapter_by_pf_port_id(pf_port_id);
+ rp = sfc_repr_proxy_by_adapter(sa);
+
+ sfc_log_init(sa, "entry");
+
+ port = sfc_repr_proxy_find_port(rp, repr_id);
+ if (port == NULL) {
+ sfc_err(sa, "%s() failed: no such port", __func__);
+ return ENOENT;
+ }
+
+ txq = &port->txq[queue_id];
+
+ txq->ring = tx_ring;
+
+ *egress_mport = port->egress_mport;
+
+ sfc_log_init(sa, "done");
+ sfc_put_adapter(sa);
+
+ return 0;
+}
+
+void
+sfc_repr_proxy_del_txq(uint16_t pf_port_id, uint16_t repr_id,
+ uint16_t queue_id)
+{
+ struct sfc_repr_proxy_port *port;
+ struct sfc_repr_proxy_txq *txq;
+ struct sfc_repr_proxy *rp;
+ struct sfc_adapter *sa;
+
+ sa = sfc_get_adapter_by_pf_port_id(pf_port_id);
+ rp = sfc_repr_proxy_by_adapter(sa);
+
+ sfc_log_init(sa, "entry");
+
+ port = sfc_repr_proxy_find_port(rp, repr_id);
+ if (port == NULL) {
+ sfc_err(sa, "%s() failed: no such port", __func__);
+ return;
+ }
+
+ txq = &port->txq[queue_id];
+
+ txq->ring = NULL;
+
+ sfc_log_init(sa, "done");
+ sfc_put_adapter(sa);
+}
git.droids-corp.org / dpdk.git / commitdiff