From: Michal Krawczyk <mk@semihalf.com>
To: Marcin Wojtas <mw@semihalf.com>,
Michal Krawczyk <mk@semihalf.com>,
Guy Tzalik <gtzalik@amazon.com>,
Evgeny Schemeilin <evgenys@amazon.com>
Cc: dev@dpdk.org, matua@amazon.com, Rafal Kozik <rk@semihalf.com>
Subject: [dpdk-dev] [PATCH v2 15/26] net/ena: add info about max number of Tx/Rx descriptors
Date: Mon, 4 Jun 2018 14:09:43 +0200 [thread overview]
Message-ID: <20180604120955.17319-6-mk@semihalf.com> (raw)
In-Reply-To: <20180604120955.17319-1-mk@semihalf.com>
From: Rafal Kozik <rk@semihalf.com>
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>
---
drivers/net/ena/ena_ethdev.c | 13 +++++++++++++
1 file changed, 13 insertions(+)
diff --git a/drivers/net/ena/ena_ethdev.c b/drivers/net/ena/ena_ethdev.c
index 4178f9132..3e3ae69bb 100644
--- a/drivers/net/ena/ena_ethdev.c
+++ b/drivers/net/ena/ena_ethdev.c
@@ -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,
--
2.14.1
next prev parent reply other threads:[~2018-06-04 12:10 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-06-04 12:09 [dpdk-dev] [PATCH v2 10/26] net/ena: add watchdog and keep alive AENQ handler Michal Krawczyk
2018-06-04 12:09 ` [dpdk-dev] [PATCH v2 11/26] net/ena: add checking for admin queue state Michal Krawczyk
2018-06-04 12:09 ` [dpdk-dev] [PATCH v2 12/26] net/ena: make watchdog configurable Michal Krawczyk
2018-06-04 12:09 ` [dpdk-dev] [PATCH v2 13/26] net/ena: add RX out of order completion Michal Krawczyk
2018-06-04 12:09 ` [dpdk-dev] [PATCH v2 14/26] net/ena: linearize Tx mbuf Michal Krawczyk
2018-06-04 12:09 ` Michal Krawczyk [this message]
2018-06-04 12:09 ` [dpdk-dev] [PATCH v2 16/26] net/ena: unimplemented handler error Michal Krawczyk
2018-06-04 12:09 ` [dpdk-dev] [PATCH v2 17/26] net/ena: rework configuration of IO queue numbers Michal Krawczyk
2018-06-04 12:09 ` [dpdk-dev] [PATCH v2 18/26] net/ena: validate Tx req id Michal Krawczyk
2018-06-04 12:09 ` [dpdk-dev] [PATCH v2 19/26] net/ena: add (un)likely statements Michal Krawczyk
2018-06-04 12:09 ` [dpdk-dev] [PATCH v2 20/26] net/ena: adjust error checking and cleaning Michal Krawczyk
2018-06-04 12:09 ` [dpdk-dev] [PATCH v2 21/26] net/ena: update numa node Michal Krawczyk
2018-06-04 12:09 ` [dpdk-dev] [PATCH v2 22/26] net/ena: check pointer before memset Michal Krawczyk
2018-06-04 12:09 ` [dpdk-dev] [PATCH v2 23/26] net/ena: change memory type Michal Krawczyk
2018-06-04 12:09 ` [dpdk-dev] [PATCH v2 24/26] net/ena: fix GENMASK_ULL macro Michal Krawczyk
2018-06-04 12:09 ` [dpdk-dev] [PATCH v2 25/26] net/ena: store handle after memory allocation Michal Krawczyk
2018-06-04 12:09 ` [dpdk-dev] [PATCH v2 26/26] net/ena: set link speed as none Michal Krawczyk
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