[dpdk-stable] [dpdk-dev] [PATCH 2/2] net/i40e: fix fdir allocating msix resource error

[Huang, ZhiminX]

Tested-by: zhiminx.huang at intel.com

Regards,
HuangZhiMin


-----Original Message-----
From: dev [mailto:dev-bounces at dpdk.org] On Behalf Of Jiang Mao
Sent: Tuesday, June 9, 2020 10:26 AM
To: Ye, Xiaolong <xiaolong.ye at intel.com>
Cc: dev at dpdk.org; stable at dpdk.org; Jiang, MaoX <maox.jiang at intel.com>
Subject: [dpdk-dev] [PATCH 2/2] net/i40e: fix fdir allocating msix resource error

Fdir allocating msix resource is not strictly necessary, if no resource left, print a warning message.

Fixes: 4861cde461 (i40e: new poll mode driver)
Cc: stable at dpdk.org
Signed-off-by: Jiang Mao <maox.jiang at intel.com>
---
 drivers/net/i40e/i40e_ethdev.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/drivers/net/i40e/i40e_ethdev.c b/drivers/net/i40e/i40e_ethdev.c index 33ed556c8..acc43077d 100644
--- a/drivers/net/i40e/i40e_ethdev.c
+++ b/drivers/net/i40e/i40e_ethdev.c
@@ -5744,6 +5744,17 @@ i40e_vsi_setup(struct i40e_pf *pf,
 			vsi->nb_msix = RTE_MIN(vsi->nb_qps,
 					       RTE_MAX_RXTX_INTR_VEC_ID);
 		}
+	} else if (type == I40E_VSI_FDIR) {
+		ret = i40e_res_pool_alloc(&pf->msix_pool, 1);
+		if (ret < 0) {
+			PMD_DRV_LOG(WARNING, "MSIX vectors used up, FDIR can`t bind interrupt");
+			vsi->msix_intr = 0;
+			vsi->nb_msix = 0;
+		} else {
+			vsi->msix_intr = ret;
+			vsi->nb_msix = 1;
+		}
+
 	} else if (type != I40E_VSI_SRIOV) {
 		ret = i40e_res_pool_alloc(&pf->msix_pool, 1);
 		if (ret < 0) {
--
2.17.1