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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: [PATCH v3 16/27] net/ena: add info about max number of Tx/Rx descriptors
Date: Thu,  7 Jun 2018 11:43:11 +0200	[thread overview]
Message-ID: <20180607094322.14312-16-mk@semihalf.com> (raw)
In-Reply-To: <20180607094322.14312-1-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 cdefcd325..a88de2eca 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

  parent reply	other threads:[~2018-06-07  9:43 UTC|newest]

Thread overview: 49+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-06-07  9:42 [PATCH v3 01/27] net/ena: change version number to 1.1.0 Michal Krawczyk
2018-06-07  9:42 ` [PATCH v3 02/27] net/ena: update ena_com to the newer version Michal Krawczyk
2018-06-08 19:43   ` Ferruh Yigit
2018-06-11  9:54     ` [PATCH v4 2/2] " Michal Krawczyk
2018-06-11 10:42       ` Ferruh Yigit
2018-06-11 11:01         ` [PATCH v5 02/27] " Michal Krawczyk
2018-06-07  9:42 ` [PATCH v3 03/27] net/ena: remove support of legacy LLQ Michal Krawczyk
2018-06-07  9:42 ` [PATCH v3 04/27] net/ena: add interrupt handler for admin queue Michal Krawczyk
2018-06-07  9:43 ` [PATCH v3 05/27] net/ena: add stop and uninit routines Michal Krawczyk
2018-06-07  9:43 ` [PATCH v3 06/27] net/ena: add LSC intr support and AENQ handling Michal Krawczyk
2018-06-07  9:43 ` [PATCH v3 07/27] net/ena: handle ENA notification Michal Krawczyk
2018-06-07  9:43 ` [PATCH v3 08/27] net/ena: restart only initialized queues instead of all Michal Krawczyk
2018-06-07  9:43 ` [PATCH v3 09/27] net/ena: add reset routine Michal Krawczyk
2018-06-07  9:43 ` [PATCH v3 10/27] net/ena: add lrte_timer dependency for linking Michal Krawczyk
2018-06-08 19:17   ` Ferruh Yigit
2018-06-11  6:24     ` Michał Krawczyk
2018-06-17 22:37   ` Thomas Monjalon
2018-06-18  6:04     ` Michał Krawczyk
2018-06-18  8:30       ` Thomas Monjalon
2018-06-18  8:32         ` Michał Krawczyk
2018-06-07  9:43 ` [PATCH v3 11/27] net/ena: add watchdog and keep alive AENQ handler Michal Krawczyk
2018-06-07  9:43 ` [PATCH v3 12/27] net/ena: add checking for admin queue state Michal Krawczyk
2018-06-07  9:43 ` [PATCH v3 13/27] net/ena: make watchdog configurable Michal Krawczyk
2018-06-07  9:43 ` [PATCH v3 14/27] net/ena: add RX out of order completion Michal Krawczyk
2018-06-07  9:43 ` [PATCH v3 15/27] net/ena: linearize Tx mbuf Michal Krawczyk
2018-06-07  9:43 ` Michal Krawczyk [this message]
2018-06-07  9:43 ` [PATCH v3 17/27] net/ena: unimplemented handler error Michal Krawczyk
2018-06-07  9:43 ` [PATCH v3 18/27] net/ena: rework configuration of IO queue numbers Michal Krawczyk
2018-06-07  9:43 ` [PATCH v3 19/27] net/ena: validate Tx req id Michal Krawczyk
2018-06-07  9:43 ` [PATCH v3 20/27] net/ena: add (un)likely statements Michal Krawczyk
2018-06-07  9:43 ` [PATCH v3 21/27] net/ena: adjust error checking and cleaning Michal Krawczyk
2018-06-07  9:43 ` [PATCH v3 22/27] net/ena: update numa node Michal Krawczyk
2018-06-07  9:43 ` [PATCH v3 23/27] net/ena: check pointer before memset Michal Krawczyk
2018-06-07  9:43 ` [PATCH v3 24/27] net/ena: change memory type Michal Krawczyk
2018-06-07  9:43 ` [PATCH v3 25/27] net/ena: fix GENMASK_ULL macro Michal Krawczyk
2018-06-07  9:43 ` [PATCH v3 26/27] net/ena: store handle after memory allocation Michal Krawczyk
2018-06-07  9:43 ` [PATCH v3 27/27] net/ena: set link speed as none Michal Krawczyk
2018-06-08 19:37   ` Ferruh Yigit
2018-06-10  1:35     ` Chas Williams
2018-06-11  8:01       ` Michał Krawczyk
2018-06-11 16:15         ` Chas Williams
2018-06-19  6:32           ` Michał Krawczyk
2018-06-08 19:45 ` [PATCH v3 01/27] net/ena: change version number to 1.1.0 Ferruh Yigit
2018-06-11  8:45   ` Michał Krawczyk
2018-06-11  9:26     ` Ferruh Yigit
2018-06-11  9:33       ` Michał Krawczyk
2018-06-11  9:50         ` Ferruh Yigit
2018-06-11  9:52           ` Michał Krawczyk
2018-06-11 12:34 ` Ferruh Yigit

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