From: Lunyuan Cui <lunyuanx.cui@intel.com>
To: dev@dpdk.org
Cc: Beilei Xing <beilei.xing@intel.com>,
Qi Zhang <qi.z.zhang@intel.com>,
Qiming Yang <qiming.yang@intel.com>,
Lunyuan Cui <lunyuanx.cui@intel.com>
Subject: [dpdk-dev] [PATCH] net/i40e: add warning log for VF multi-queue Rx interrupt
Date: Thu, 9 Jan 2020 07:20:26 +0000 [thread overview]
Message-ID: <20200109072026.10517-1-lunyuanx.cui@intel.com> (raw)
Count of queues per port is over the max usable vector,
it will cause missing packets. This patch is in order to
add suggestive logs.
Signed-off-by: Lunyuan Cui <lunyuanx.cui@intel.com>
---
drivers/net/i40e/i40e_ethdev_vf.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/drivers/net/i40e/i40e_ethdev_vf.c b/drivers/net/i40e/i40e_ethdev_vf.c
index 479f8282c..68a0cb8fa 100644
--- a/drivers/net/i40e/i40e_ethdev_vf.c
+++ b/drivers/net/i40e/i40e_ethdev_vf.c
@@ -682,8 +682,12 @@ i40evf_config_irq_map(struct rte_eth_dev *dev)
intr_handle->intr_vec[i] = vector_id;
if (vector_id > I40E_MISC_VEC_ID)
vector_id++;
- if (vector_id > nb_msix)
+ if (vector_id >= nb_msix) {
+ PMD_DRV_LOG(WARNING, "Count of queues per port is "
+ "over the max usable vector(%d), it will "
+ "cause missing packets.", nb_msix - 1);
vector_id = I40E_RX_VEC_START;
+ }
}
args.ops = VIRTCHNL_OP_CONFIG_IRQ_MAP;
--
2.17.1
reply other threads:[~2020-01-09 7:21 UTC|newest]
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