dpdk: patch i40e PMD to disable source pruning

Type: improvement

X710/XL710 devices have source pruning enabled by default and DPDK
provides no option to disable it. This prevents VRRP from working
properly.

Disable source pruning while setting up the main VSI.

Change-Id: Iaf89f7dae8992e3bd0b9fae83878daa27a5bb931
Signed-off-by: Matthew Smith <mgsmith@netgate.com>

diff --git a/build/external/patches/dpdk_21.05/0001-net-i40e-disable-source-pruning-on-pf.patch b/build/external/patches/dpdk_21.05/0001-net-i40e-disable-source-pruning-on-pf.patch
new file mode 100644 (file)
index 0000000..b1e840f
--- /dev/null
+++ b/build/external/patches/dpdk_21.05/0001-net-i40e-disable-source-pruning-on-pf.patch
@@ -0,0 +1,43 @@
+From 7f12cf029c8be96314711bd02b3ea8b2d180d8ca Mon Sep 17 00:00:00 2001
+From: Matthew Smith <mgsmith@netgate.com>
+Date: Fri, 2 Jul 2021 15:09:25 -0500
+Subject: [PATCH] net/i40e: disable source pruning on pf
+
+VRRP advertisement packets are dropped on X710 and XL710 devices
+because when a MAC address is added to a device, packets originating
+from that MAC address are dropped. We disable source pruning to work
+around that issue.
+
+Signed-off-by: Matthew Smith <mgsmith@netgate.com>
+---
+ drivers/net/i40e/i40e_ethdev.c | 14 ++++++++++++++
+ 1 file changed, 14 insertions(+)
+
+diff --git a/drivers/net/i40e/i40e_ethdev.c b/drivers/net/i40e/i40e_ethdev.c
+index dd61258739..f5d2a262ec 100644
+--- a/drivers/net/i40e/i40e_ethdev.c
++++ b/drivers/net/i40e/i40e_ethdev.c
+@@ -5794,6 +5794,20 @@ i40e_vsi_setup(struct i40e_pf *pf,
+                * interrupt from device side only.
+                */
+ 
++              /* disable source pruning */
++              memset(&ctxt, 0, sizeof(ctxt));
++              ctxt.seid = vsi->seid;
++              ctxt.pf_num = hw->pf_id;
++              ctxt.vf_num = 0;
++              ctxt.info.valid_sections |=
++                      rte_cpu_to_le_16(I40E_AQ_VSI_PROP_SWITCH_VALID);
++              ctxt.info.switch_id =
++                      rte_cpu_to_le_16(I40E_AQ_VSI_SW_ID_FLAG_LOCAL_LB);
++              ret = i40e_aq_update_vsi_params(hw, &ctxt, NULL);
++              if (ret != I40E_SUCCESS) {
++                      PMD_DRV_LOG(ERR, "Failed to disable source pruning");
++              }
++
+               /* Get default VSI parameters from hardware */
+               memset(&ctxt, 0, sizeof(ctxt));
+               ctxt.seid = vsi->seid;
+-- 
+2.30.1 (Apple Git-130)
+