From: Rasesh Mody <rasesh.mody@cavium.com>
To: <dev@dpdk.org>
Cc: Harish Patil <harish.patil@cavium.com>, <Dept-EngDPDKDev@cavium.com>
Subject: [dpdk-dev] [PATCH 3/9] net/qede: limit ring size to 32k
Date: Thu, 29 Jun 2017 02:51:23 -0700 [thread overview]
Message-ID: <1498729889-21524-4-git-send-email-rasesh.mody@cavium.com> (raw)
In-Reply-To: <1498729889-21524-1-git-send-email-rasesh.mody@cavium.com>
From: Harish Patil <harish.patil@cavium.com>
Since nb_max is a u16 it can store value upto 65535 only (not 64K), but
this value is not a power-of-2. So limit the ring sizes to 32K.
Signed-off-by: Harish Patil <harish.patil@cavium.com>
---
drivers/net/qede/qede_ethdev.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/net/qede/qede_ethdev.c b/drivers/net/qede/qede_ethdev.c
index 3e9f359..fcc9bbb 100644
--- a/drivers/net/qede/qede_ethdev.c
+++ b/drivers/net/qede/qede_ethdev.c
@@ -1189,13 +1189,13 @@ static int qede_dev_configure(struct rte_eth_dev *eth_dev)
/* Info about HW descriptor ring limitations */
static const struct rte_eth_desc_lim qede_rx_desc_lim = {
- .nb_max = NUM_RX_BDS_MAX,
+ .nb_max = 0x8000, /* 32K */
.nb_min = 128,
.nb_align = 128 /* lowest common multiple */
};
static const struct rte_eth_desc_lim qede_tx_desc_lim = {
- .nb_max = NUM_TX_BDS_MAX,
+ .nb_max = 0x8000, /* 32K */
.nb_min = 256,
.nb_align = 256,
.nb_seg_max = ETH_TX_MAX_BDS_PER_LSO_PACKET,
--
1.7.10.3
next prev parent reply other threads:[~2017-06-29 9:52 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-06-29 9:51 [dpdk-dev] [PATCH 0/9] net/qede: update PMD to 2.5.1.1 Rasesh Mody
2017-06-29 9:51 ` [dpdk-dev] [PATCH 1/9] net/qede: fix DMA memory leak Rasesh Mody
2017-06-29 9:51 ` [dpdk-dev] [PATCH 2/9] net/qede: add notifying HW errors Rasesh Mody
2017-06-29 9:51 ` Rasesh Mody [this message]
2017-06-29 9:51 ` [dpdk-dev] [PATCH 4/9] net/qede: comments traces and format changes Rasesh Mody
2017-06-29 9:51 ` [dpdk-dev] [PATCH 5/9] net/qede: change debug verbosity of PMD messages Rasesh Mody
2017-06-29 9:51 ` [dpdk-dev] [PATCH 6/9] net/qede: set mdump flag Rasesh Mody
2017-06-29 9:51 ` [dpdk-dev] [PATCH 7/9] net/qede: add missing check for VNI Rasesh Mody
2017-06-29 9:51 ` [dpdk-dev] [PATCH 8/9] net/qede: use newer packet mbuf allocate API Rasesh Mody
2017-06-29 12:55 ` Ferruh Yigit
2017-07-01 19:34 ` Mody, Rasesh
2017-06-29 9:51 ` [dpdk-dev] [PATCH 9/9] net/qede: update PMD version to 2.5.1.1 Rasesh Mody
2017-06-29 12:16 ` [dpdk-dev] [PATCH 0/9] net/qede: update PMD " Ferruh Yigit
2017-07-01 19:29 ` [dpdk-dev] [PATCH v2 0/8] " Rasesh Mody
2017-07-05 10:01 ` Ferruh Yigit
2017-07-08 18:35 ` Mody, Rasesh
2017-07-01 19:29 ` [dpdk-dev] [PATCH v2 1/8] net/qede: fix DMA memory leak Rasesh Mody
2017-07-01 19:29 ` [dpdk-dev] [PATCH v2 2/8] net/qede: add notifying HW errors Rasesh Mody
2017-07-01 19:29 ` [dpdk-dev] [PATCH v2 3/8] net/qede: limit ring size to 32k Rasesh Mody
2017-07-01 19:29 ` [dpdk-dev] [PATCH v2 4/8] net/qede: comments traces and format changes Rasesh Mody
2017-07-01 19:29 ` [dpdk-dev] [PATCH v2 5/8] net/qede: change debug verbosity of PMD messages Rasesh Mody
2017-07-01 19:30 ` [dpdk-dev] [PATCH v2 6/8] net/qede: set mdump flag Rasesh Mody
2017-07-01 19:30 ` [dpdk-dev] [PATCH v2 7/8] net/qede: add missing check for VNI Rasesh Mody
2017-07-03 10:08 ` Ferruh Yigit
2017-07-01 19:30 ` [dpdk-dev] [PATCH v2 8/8] net/qede: update PMD version to 2.5.1.1 Rasesh Mody
2017-07-03 10:06 ` Ferruh Yigit
2017-07-05 9:57 ` Ferruh Yigit
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