[dpdk-stable] patch 'net/bnxt: fix handling of null flow mask' has been queued to stable release 20.11.2

[Xueming Li]

Hi,

FYI, your patch has been queued to stable release 20.11.2

Note it hasn't been pushed to http://dpdk.org/browse/dpdk-stable yet.
It will be pushed if I get no objections before 05/12/21. So please
shout if anyone has objections.

Also note that after the patch there's a diff of the upstream commit vs the
patch applied to the branch. This will indicate if there was any rebasing
needed to apply to the stable branch. If there were code changes for rebasing
(ie: not only metadata diffs), please double check that the rebase was
correctly done.

Queued patches are on a temporary branch at:
https://github.com/steevenlee/dpdk

This queued commit can be viewed at:
https://github.com/steevenlee/dpdk/commit/b1f8911ea3a32a31b91aaa15a81c60c32e06c0ec

Thanks.

Xueming Li <xuemingl at nvidia.com>

---
>From b1f8911ea3a32a31b91aaa15a81c60c32e06c0ec Mon Sep 17 00:00:00 2001
From: Lance Richardson <lance.richardson at broadcom.com>
Date: Thu, 18 Mar 2021 15:52:51 -0400
Subject: [PATCH] net/bnxt: fix handling of null flow mask
Cc: Luca Boccassi <bluca at debian.org>

[ upstream commit dea1afc71ffce08fccef2d49f09f6ad874c433c5 ]

When the mask field of an rte_flow pattern item is NULL,
the default mask for that item type should be used.

Fixes: 5ef3b79fdfe6 ("net/bnxt: support flow filter ops")

Signed-off-by: Lance Richardson <lance.richardson at broadcom.com>
Reviewed-by: Ajit Khaparde <ajit.khaparde at broadcom.com>
---
 drivers/net/bnxt/bnxt_flow.c | 47 +++++++++++++++++++++++++++---------
 1 file changed, 36 insertions(+), 11 deletions(-)

diff --git a/drivers/net/bnxt/bnxt_flow.c b/drivers/net/bnxt/bnxt_flow.c
index 127d51c45b..514a5ed433 100644
--- a/drivers/net/bnxt/bnxt_flow.c
+++ b/drivers/net/bnxt/bnxt_flow.c
@@ -188,11 +188,15 @@ bnxt_validate_and_parse_flow_type(struct bnxt *bp,
 				PMD_DRV_LOG(DEBUG, "Parse inner header\n");
 			break;
 		case RTE_FLOW_ITEM_TYPE_ETH:
-			if (!item->spec || !item->mask)
+			if (!item->spec)
 				break;
 
 			eth_spec = item->spec;
-			eth_mask = item->mask;
+
+			if (item->mask)
+				eth_mask = item->mask;
+			else
+				eth_mask = &rte_flow_item_eth_mask;
 
 			/* Source MAC address mask cannot be partially set.
 			 * Should be All 0's or all 1's.
@@ -281,7 +285,12 @@ bnxt_validate_and_parse_flow_type(struct bnxt *bp,
 			break;
 		case RTE_FLOW_ITEM_TYPE_VLAN:
 			vlan_spec = item->spec;
-			vlan_mask = item->mask;
+
+			if (item->mask)
+				vlan_mask = item->mask;
+			else
+				vlan_mask = &rte_flow_item_vlan_mask;
+
 			if (en & en_ethertype) {
 				rte_flow_error_set(error, EINVAL,
 						   RTE_FLOW_ERROR_TYPE_ITEM,
@@ -324,11 +333,15 @@ bnxt_validate_and_parse_flow_type(struct bnxt *bp,
 		case RTE_FLOW_ITEM_TYPE_IPV4:
 			/* If mask is not involved, we could use EM filters. */
 			ipv4_spec = item->spec;
-			ipv4_mask = item->mask;
 
-			if (!item->spec || !item->mask)
+			if (!item->spec)
 				break;
 
+			if (item->mask)
+				ipv4_mask = item->mask;
+			else
+				ipv4_mask = &rte_flow_item_ipv4_mask;
+
 			/* Only IP DST and SRC fields are maskable. */
 			if (ipv4_mask->hdr.version_ihl ||
 			    ipv4_mask->hdr.type_of_service ||
@@ -385,11 +398,15 @@ bnxt_validate_and_parse_flow_type(struct bnxt *bp,
 			break;
 		case RTE_FLOW_ITEM_TYPE_IPV6:
 			ipv6_spec = item->spec;
-			ipv6_mask = item->mask;
 
-			if (!item->spec || !item->mask)
+			if (!item->spec)
 				break;
 
+			if (item->mask)
+				ipv6_mask = item->mask;
+			else
+				ipv6_mask = &rte_flow_item_ipv6_mask;
+
 			/* Only IP DST and SRC fields are maskable. */
 			if (ipv6_mask->hdr.vtc_flow ||
 			    ipv6_mask->hdr.payload_len ||
@@ -437,11 +454,15 @@ bnxt_validate_and_parse_flow_type(struct bnxt *bp,
 			break;
 		case RTE_FLOW_ITEM_TYPE_TCP:
 			tcp_spec = item->spec;
-			tcp_mask = item->mask;
 
-			if (!item->spec || !item->mask)
+			if (!item->spec)
 				break;
 
+			if (item->mask)
+				tcp_mask = item->mask;
+			else
+				tcp_mask = &rte_flow_item_tcp_mask;
+
 			/* Check TCP mask. Only DST & SRC ports are maskable */
 			if (tcp_mask->hdr.sent_seq ||
 			    tcp_mask->hdr.recv_ack ||
@@ -482,11 +503,15 @@ bnxt_validate_and_parse_flow_type(struct bnxt *bp,
 			break;
 		case RTE_FLOW_ITEM_TYPE_UDP:
 			udp_spec = item->spec;
-			udp_mask = item->mask;
 
-			if (!item->spec || !item->mask)
+			if (!item->spec)
 				break;
 
+			if (item->mask)
+				udp_mask = item->mask;
+			else
+				udp_mask = &rte_flow_item_udp_mask;
+
 			if (udp_mask->hdr.dgram_len ||
 			    udp_mask->hdr.dgram_cksum) {
 				rte_flow_error_set(error,
-- 
2.25.1

---
  Diff of the applied patch vs upstream commit (please double-check if non-empty:
---
--- -	2021-05-10 23:59:29.052612700 +0800
+++ 0095-net-bnxt-fix-handling-of-null-flow-mask.patch	2021-05-10 23:59:26.460000000 +0800
@@ -1 +1 @@
-From dea1afc71ffce08fccef2d49f09f6ad874c433c5 Mon Sep 17 00:00:00 2001
+From b1f8911ea3a32a31b91aaa15a81c60c32e06c0ec Mon Sep 17 00:00:00 2001
@@ -4,0 +5,3 @@
+Cc: Luca Boccassi <bluca at debian.org>
+
+[ upstream commit dea1afc71ffce08fccef2d49f09f6ad874c433c5 ]
@@ -10 +12,0 @@
-Cc: stable at dpdk.org
@@ -19 +21 @@
-index a8f5d91fc4..e3906b4779 100644
+index 127d51c45b..514a5ed433 100644