[dpdk-stable] [PATCH v5 2/5] app/testpmd: fix RSS key length

[dpdk-stable] [PATCH v5 2/5] app/testpmd: fix RSS key length

[Maxime Coquelin]

port_rss_hash_key_update() initializes rss_conf with the
RSS key configuration provided  by the user, but it calls
rte_eth_dev_rss_hash_conf_get() before calling
rte_eth_dev_rss_hash_update(), which overrides the parsed
RSS config.

While the RSS key value is set again after, this is not
the case of the key length. It could cause out of bounds
access if the key length parsed is smaller than the one
read from rte_eth_dev_rss_hash_conf_get().

This patch restores the key length before the
rte_eth_dev_rss_hash_update() call to ensure the RSS key
value/length pair is consistent.

Fixes: 8205e241b2b0 ("app/testpmd: add missing type to RSS hash commands")
Cc: stable@dpdk.org

Signed-off-by: Maxime Coquelin <maxime.coquelin@redhat.com>
Acked-by: Xiaoyun Li <xiaoyun.li@intel.com>
Reviewed-by: Chenbo Xia <chenbo.xia@intel.com>
---
 app/test-pmd/config.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/app/test-pmd/config.c b/app/test-pmd/config.c
index f83a1abb09..63468cc1ea 100644
--- a/app/test-pmd/config.c
+++ b/app/test-pmd/config.c
@@ -3016,7 +3016,7 @@ port_rss_hash_key_update(portid_t port_id, char rss_type[], uint8_t *hash_key,
 	unsigned int i;
 
 	rss_conf.rss_key = NULL;
-	rss_conf.rss_key_len = hash_key_len;
+	rss_conf.rss_key_len = 0;
 	rss_conf.rss_hf = 0;
 	for (i = 0; rss_type_table[i].str; i++) {
 		if (!strcmp(rss_type_table[i].str, rss_type))
@@ -3025,6 +3025,7 @@ port_rss_hash_key_update(portid_t port_id, char rss_type[], uint8_t *hash_key,
 	diag = rte_eth_dev_rss_hash_conf_get(port_id, &rss_conf);
 	if (diag == 0) {
 		rss_conf.rss_key = hash_key;
+		rss_conf.rss_key_len = hash_key_len;
 		diag = rte_eth_dev_rss_hash_update(port_id, &rss_conf);
 	}
 	if (diag == 0)
-- 
2.31.1

[dpdk-stable] [PATCH v5 3/5] app/testpmd: fix RSS type display

[Maxime Coquelin]

This patch fixes the display of the RSS hash types
configured in the port, which displayed "all" even
if only a single type was configured

Fixes: 3c90743dd3b9 ("app/testpmd: support more types for flow RSS")
Cc: stable@dpdk.org

Signed-off-by: Maxime Coquelin <maxime.coquelin@redhat.com>
Acked-by: Xiaoyun Li <xiaoyun.li@intel.com>
Reviewed-by: Chenbo Xia <chenbo.xia@intel.com>
---
 app/test-pmd/config.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/app/test-pmd/config.c b/app/test-pmd/config.c
index 63468cc1ea..18c3c3d369 100644
--- a/app/test-pmd/config.c
+++ b/app/test-pmd/config.c
@@ -2995,7 +2995,9 @@ port_rss_hash_conf_show(portid_t port_id, int show_rss_key)
 	}
 	printf("RSS functions:\n ");
 	for (i = 0; rss_type_table[i].str; i++) {
-		if (rss_hf & rss_type_table[i].rss_type)
+		if (rss_type_table[i].rss_type == 0)
+			continue;
+		if ((rss_hf & rss_type_table[i].rss_type) == rss_type_table[i].rss_type)
 			printf("%s ", rss_type_table[i].str);
 	}
 	printf("\n");
-- 
2.31.1

[dpdk-stable] [PATCH v5 4/5] net/mlx5: fix RSS RETA update

[Maxime Coquelin]

This patch fixes RETA updating for entries above 64.
Without ithat, these entries are never updated as
calculated mask value will always be 0.

Fixes: 634efbc2c8c0 ("mlx5: support RETA query and update")
Cc: stable@dpdk.org
Cc: nelio.laranjeiro@6wind.com

Signed-off-by: Maxime Coquelin <maxime.coquelin@redhat.com>
Acked-by: Viacheslav Ovsiienko <viacheslavo@nvidia.com>
---
 drivers/net/mlx5/mlx5_rss.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/mlx5/mlx5_rss.c b/drivers/net/mlx5/mlx5_rss.c
index c32129cdc2..6dc52acee0 100644
--- a/drivers/net/mlx5/mlx5_rss.c
+++ b/drivers/net/mlx5/mlx5_rss.c
@@ -211,7 +211,7 @@ mlx5_dev_rss_reta_update(struct rte_eth_dev *dev,
 	for (idx = 0, i = 0; (i != reta_size); ++i) {
 		idx = i / RTE_RETA_GROUP_SIZE;
 		pos = i % RTE_RETA_GROUP_SIZE;
-		if (((reta_conf[idx].mask >> i) & 0x1) == 0)
+		if (((reta_conf[idx].mask >> pos) & 0x1) == 0)
 			continue;
 		MLX5_ASSERT(reta_conf[idx].reta[pos] < priv->rxqs_n);
 		(*priv->reta_idx)[i] = reta_conf[idx].reta[pos];
-- 
2.31.1