[dpdk-stable] patch 'net/ixgbe: remove tpid check for flow director' has been queued to stable release 17.02.1

[Yuanhan Liu]

Hi,

FYI, your patch has been queued to stable release 17.02.1

Note it hasn't been pushed to http://dpdk.org/browse/dpdk-stable yet.
It will be pushed if I get no objections before 05/28/17. So please
shout if anyone has objections.

Thanks.

	--yliu

---
>From dc6b6d11e70a646ed47f4f3d3442d6dad8c3ba09 Mon Sep 17 00:00:00 2001
From: Wei Zhao <wei.zhao1 at intel.com>
Date: Fri, 14 Apr 2017 11:34:10 +0800
Subject: [PATCH] net/ixgbe: remove tpid check for flow director

[ upstream commit c29315b87d6035d9312c9cf10ccb932493660cef ]

DPDK community has several emails discussion on this topic,
these mails link is bellow:
http://dpdk.org/ml/archives/dev/2017-March/060379.html,
http://dpdk.org/ml/archives/dev/2017-March/060295.html,

items like VLAN can already have several valid "types"
(0x88a8, 0x8100, 0x9100), and who knows what will come up
in the future.

And ixgbe_flow just ignores the types when do filter configuration.
So it may be reasonable to delete the related tpid check process.

Also add some more comment log on stack explanation.

Fixes: 11777435c72 ("net/ixgbe: parse flow director filter")

Signed-off-by: Wei Zhao <wei.zhao1 at intel.com>
---
 drivers/net/ixgbe/ixgbe_flow.c | 33 ++-------------------------------
 1 file changed, 2 insertions(+), 31 deletions(-)

diff --git a/drivers/net/ixgbe/ixgbe_flow.c b/drivers/net/ixgbe/ixgbe_flow.c
index 820a8c5..9f9c91c 100644
--- a/drivers/net/ixgbe/ixgbe_flow.c
+++ b/drivers/net/ixgbe/ixgbe_flow.c
@@ -1401,7 +1401,6 @@ ixgbe_parse_fdir_act_attr(const struct rte_flow_attr *attr,
 		{0xAC, 0x7B, 0xA1,	{0xFF, 0xFF, 0xFF,
 		0x2C, 0x6D, 0x36}	0xFF, 0xFF, 0xFF}
  * MAC VLAN	tci	0x2016		0xEFFF
- *		tpid	0x8100		0xFFFF
  * END
  * Other members in mask and spec should set to 0x00.
  * Item->last should be NULL.
@@ -1599,23 +1598,8 @@ ixgbe_parse_fdir_filter_normal(const struct rte_flow_attr *attr,
 		vlan_spec = (const struct rte_flow_item_vlan *)item->spec;
 		vlan_mask = (const struct rte_flow_item_vlan *)item->mask;
 
-		if (vlan_spec->tpid != rte_cpu_to_be_16(ETHER_TYPE_VLAN)) {
-			memset(rule, 0, sizeof(struct ixgbe_fdir_rule));
-			rte_flow_error_set(error, EINVAL,
-				RTE_FLOW_ERROR_TYPE_ITEM,
-				item, "Not supported by fdir filter");
-			return -rte_errno;
-		}
-
 		rule->ixgbe_fdir.formatted.vlan_id = vlan_spec->tci;
 
-		if (vlan_mask->tpid != (uint16_t)~0U) {
-			memset(rule, 0, sizeof(struct ixgbe_fdir_rule));
-			rte_flow_error_set(error, EINVAL,
-				RTE_FLOW_ERROR_TYPE_ITEM,
-				item, "Not supported by fdir filter");
-			return -rte_errno;
-		}
 		rule->mask.vlan_tci_mask = vlan_mask->tci;
 		rule->mask.vlan_tci_mask &= rte_cpu_to_be_16(0xEFFF);
 		/* More than one tags are not supported. */
@@ -1910,6 +1894,7 @@ ixgbe_parse_fdir_filter_normal(const struct rte_flow_attr *attr,
  * IPV4/IPV6	NULL			NULL
  * UDP		NULL			NULL
  * VxLAN	vni{0x00, 0x32, 0x54}	{0xFF, 0xFF, 0xFF}
+ * MAC VLAN	tci	0x2016		0xEFFF
  * END
  * NEGRV pattern example:
  * ITEM		Spec			Mask
@@ -1917,6 +1902,7 @@ ixgbe_parse_fdir_filter_normal(const struct rte_flow_attr *attr,
  * IPV4/IPV6	NULL			NULL
  * NVGRE	protocol	0x6558	0xFFFF
  *		tni{0x00, 0x32, 0x54}	{0xFF, 0xFF, 0xFF}
+ * MAC VLAN	tci	0x2016		0xEFFF
  * END
  * other members in mask and spec should set to 0x00.
  * item->last should be NULL.
@@ -2344,23 +2330,8 @@ ixgbe_parse_fdir_filter_tunnel(const struct rte_flow_attr *attr,
 		vlan_spec = (const struct rte_flow_item_vlan *)item->spec;
 		vlan_mask = (const struct rte_flow_item_vlan *)item->mask;
 
-		if (vlan_spec->tpid != rte_cpu_to_be_16(ETHER_TYPE_VLAN)) {
-			memset(rule, 0, sizeof(struct ixgbe_fdir_rule));
-			rte_flow_error_set(error, EINVAL,
-				RTE_FLOW_ERROR_TYPE_ITEM,
-				item, "Not supported by fdir filter");
-			return -rte_errno;
-		}
-
 		rule->ixgbe_fdir.formatted.vlan_id = vlan_spec->tci;
 
-		if (vlan_mask->tpid != (uint16_t)~0U) {
-			memset(rule, 0, sizeof(struct ixgbe_fdir_rule));
-			rte_flow_error_set(error, EINVAL,
-				RTE_FLOW_ERROR_TYPE_ITEM,
-				item, "Not supported by fdir filter");
-			return -rte_errno;
-		}
 		rule->mask.vlan_tci_mask = vlan_mask->tci;
 		rule->mask.vlan_tci_mask &= rte_cpu_to_be_16(0xEFFF);
 		/* More than one tags are not supported. */
-- 
1.9.0