[dpdk-stable] patch 'net/ixgbe: fix the failure of number of Tx queue check' has been queued to LTS release 17.11.1
Yuanhan Liu
yliu at fridaylinux.org
Wed Jan 24 16:32:27 CET 2018
Hi,
FYI, your patch has been queued to LTS release 17.11.1
Note it hasn't been pushed to http://dpdk.org/browse/dpdk-stable yet.
It will be pushed if I get no objections before 01/26/18. So please
shout if anyone has objections.
Thanks.
--yliu
---
>From 5c9b886f3b5a1e6a8ec7c01cfecd64bce08c18ec Mon Sep 17 00:00:00 2001
From: Yanglong Wu <yanglong.wu at intel.com>
Date: Wed, 10 Jan 2018 09:51:36 +0800
Subject: [PATCH] net/ixgbe: fix the failure of number of Tx queue check
[ upstream commit 12da1deb89806c0a0d974948d11712e4f06c6b93 ]
Tx_q check fails when the SRIOV is active and tx_q > rx_q. It has
to use the maximum HW queue number for calculation, to get the
right number of queue can be used.
Fixes: 27b609cbd1c6 ("ethdev: move the multi-queue mode check to specific drivers")
Signed-off-by: Yanglong Wu <yanglong.wu at intel.com>
Acked-by: Konstantin Ananyev <konstantin.ananyev at intel.com>
---
drivers/net/ixgbe/ixgbe_ethdev.c | 10 +++++++---
1 file changed, 7 insertions(+), 3 deletions(-)
diff --git a/drivers/net/ixgbe/ixgbe_ethdev.c b/drivers/net/ixgbe/ixgbe_ethdev.c
index ff19a56..b720485 100644
--- a/drivers/net/ixgbe/ixgbe_ethdev.c
+++ b/drivers/net/ixgbe/ixgbe_ethdev.c
@@ -95,6 +95,9 @@
/* Timer value included in XOFF frames. */
#define IXGBE_FC_PAUSE 0x680
+/*Default value of Max Rx Queue*/
+#define IXGBE_MAX_RX_QUEUE_NUM 128
+
#define IXGBE_LINK_DOWN_CHECK_TIMEOUT 4000 /* ms */
#define IXGBE_LINK_UP_CHECK_TIMEOUT 1000 /* ms */
#define IXGBE_VMDQ_NUM_UC_MAC 4096 /* Maximum nb. of UC MAC addr. */
@@ -2194,9 +2197,10 @@ ixgbe_check_vf_rss_rxq_num(struct rte_eth_dev *dev, uint16_t nb_rx_q)
return -EINVAL;
}
- RTE_ETH_DEV_SRIOV(dev).nb_q_per_pool = nb_rx_q;
- RTE_ETH_DEV_SRIOV(dev).def_pool_q_idx = pci_dev->max_vfs * nb_rx_q;
-
+ RTE_ETH_DEV_SRIOV(dev).nb_q_per_pool =
+ IXGBE_MAX_RX_QUEUE_NUM / RTE_ETH_DEV_SRIOV(dev).active;
+ RTE_ETH_DEV_SRIOV(dev).def_pool_q_idx =
+ pci_dev->max_vfs * RTE_ETH_DEV_SRIOV(dev).nb_q_per_pool;
return 0;
}
--
2.7.4
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