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net/sfc: support Rx descriptor status in secondary process

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If Rx datapath supports multi-process, secondary process should be
able to use Rx descriptor status and related API.

Signed-off-by: Andrew Rybchenko <arybchenko@solarflare.com>
This commit is contained in:
Andrew Rybchenko 2019-02-07 12:17:35 +00:00 committed by Ferruh Yigit
parent bfea01bc1e
commit b76e1b2c91
4 changed files with 49 additions and 4 deletions
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7
doc/guides/rel_notes/release_19_05.rst
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@ -54,6 +54,13 @@ New Features
Also, make sure to start the actual text at the margin.
=========================================================
* **Updated Solarflare network PMD.**
Updated the sfc_efx driver including the following changes:
* Added support for Rx descriptor status and related API in a secondary
process.
Removed Items
-------------

3
drivers/net/sfc/sfc_dp_rx.h
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@ -228,6 +228,9 @@ sfc_dp_find_rx_by_caps(struct sfc_dp_list *head, unsigned int avail_caps)
return (p == NULL) ? NULL : container_of(p, struct sfc_dp_rx, dp);
}
/** Get Rx datapath ops by the datapath RxQ handle */
const struct sfc_dp_rx *sfc_dp_rx_by_dp_rxq(const struct sfc_dp_rxq *dp_rxq);
extern struct sfc_dp_rx sfc_efx_rx;
extern struct sfc_dp_rx sfc_ef10_rx;
extern struct sfc_dp_rx sfc_ef10_essb_rx;

27
drivers/net/sfc/sfc_ethdev.c
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@ -1117,6 +1117,10 @@ sfc_tx_queue_info_get(struct rte_eth_dev *dev, uint16_t tx_queue_id,
sfc_adapter_unlock(sa);
}
/*
* The function is used by the secondary process as well. It must not
* use any process-local pointers from the adapter data.
*/
static uint32_t
sfc_rx_queue_count(struct rte_eth_dev *dev, uint16_t rx_queue_id)
{
@ -1133,22 +1137,34 @@ sfc_rx_queue_count(struct rte_eth_dev *dev, uint16_t rx_queue_id)
return sap->dp_rx->qdesc_npending(rxq_info->dp);
}
/*
* The function is used by the secondary process as well. It must not
* use any process-local pointers from the adapter data.
*/
static int
sfc_rx_descriptor_done(void *queue, uint16_t offset)
{
struct sfc_dp_rxq *dp_rxq = queue;
struct sfc_rxq *rxq = sfc_rxq_by_dp_rxq(dp_rxq);
const struct sfc_dp_rx *dp_rx;
return offset < rxq->evq->sa->priv.dp_rx->qdesc_npending(dp_rxq);
dp_rx = sfc_dp_rx_by_dp_rxq(dp_rxq);
return offset < dp_rx->qdesc_npending(dp_rxq);
}
/*
* The function is used by the secondary process as well. It must not
* use any process-local pointers from the adapter data.
*/
static int
sfc_rx_descriptor_status(void *queue, uint16_t offset)
{
struct sfc_dp_rxq *dp_rxq = queue;
struct sfc_rxq *rxq = sfc_rxq_by_dp_rxq(dp_rxq);
const struct sfc_dp_rx *dp_rx;
return rxq->evq->sa->priv.dp_rx->qdesc_status(dp_rxq, offset);
dp_rx = sfc_dp_rx_by_dp_rxq(dp_rxq);
return dp_rx->qdesc_status(dp_rxq, offset);
}
static int
@ -1877,6 +1893,9 @@ sfc_eth_dev_clear_ops(struct rte_eth_dev *dev)
}
static const struct eth_dev_ops sfc_eth_dev_secondary_ops = {
.rx_queue_count = sfc_rx_queue_count,
.rx_descriptor_done = sfc_rx_descriptor_done,
.rx_descriptor_status = sfc_rx_descriptor_status,
.rxq_info_get = sfc_rx_queue_info_get,
.txq_info_get = sfc_tx_queue_info_get,
};

16
drivers/net/sfc/sfc_rx.c
View File

@ -360,6 +360,22 @@ sfc_efx_rx_qdesc_status(struct sfc_dp_rxq *dp_rxq, uint16_t offset)
return RTE_ETH_RX_DESC_UNAVAIL;
}
/** Get Rx datapath ops by the datapath RxQ handle */
const struct sfc_dp_rx *
sfc_dp_rx_by_dp_rxq(const struct sfc_dp_rxq *dp_rxq)
{
const struct sfc_dp_queue *dpq = &dp_rxq->dpq;
struct rte_eth_dev *eth_dev;
struct sfc_adapter_priv *sap;
SFC_ASSERT(rte_eth_dev_is_valid_port(dpq->port_id));
eth_dev = &rte_eth_devices[dpq->port_id];
sap = sfc_adapter_priv_by_eth_dev(eth_dev);
return sap->dp_rx;
}
struct sfc_rxq_info *
sfc_rxq_info_by_dp_rxq(const struct sfc_dp_rxq *dp_rxq)
{