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net/ena: add info about max number of Tx/Rx descriptors

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In function ena_infos_get driver provides information about minimal
and maximal number of Rx and Tx descriptors.

Signed-off-by: Rafal Kozik <rk@semihalf.com>
Acked-by: Michal Krawczyk <mk@semihalf.com>
This commit is contained in:
Rafal Kozik 2018-06-07 11:43:11 +02:00 committed by Ferruh Yigit
parent 2061fe41f2
commit 92680dc220
1 changed files with 13 additions and 0 deletions
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13
drivers/net/ena/ena_ethdev.c
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@ -85,6 +85,9 @@
#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
#define ENA_MAX_RING_DESC ENA_DEFAULT_RING_SIZE
#define ENA_MIN_RING_DESC 128
enum ethtool_stringset {
ETH_SS_TEST = 0,
ETH_SS_STATS,
@ -1740,6 +1743,16 @@ static void ena_infos_get(struct rte_eth_dev *dev,
adapter->tx_supported_offloads = tx_feat;
adapter->rx_supported_offloads = rx_feat;
dev_info->rx_desc_lim.nb_max = ENA_MAX_RING_DESC;
dev_info->rx_desc_lim.nb_min = ENA_MIN_RING_DESC;
dev_info->tx_desc_lim.nb_max = ENA_MAX_RING_DESC;
dev_info->tx_desc_lim.nb_min = ENA_MIN_RING_DESC;
dev_info->tx_desc_lim.nb_seg_max = RTE_MIN(ENA_PKT_MAX_BUFS,
feat.max_queues.max_packet_tx_descs);
dev_info->tx_desc_lim.nb_mtu_seg_max = RTE_MIN(ENA_PKT_MAX_BUFS,
feat.max_queues.max_packet_tx_descs);
}
static uint16_t eth_ena_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts,