From: Kiran Kumar K <kirankum...@marvell.com>
Limit the configuring RSS key with RTE Flow operations for cnxk
device. Key can be update only with dev operations using
rte_eth_dev_rss_hash_update.
Signed-off-by: Kiran Kumar K <kirankum...@marvell.com>
Reviewed-by: Jerin Jacob <jer...@marvell.com>
---
drivers/common/cnxk/roc_npc.c | 33 ++++++++++++++++++++++++++-------
1 file changed, 26 insertions(+), 7 deletions(-)
diff --git a/drivers/common/cnxk/roc_npc.c b/drivers/common/cnxk/roc_npc.c
index c0c168db76..0611a83bba 100644
--- a/drivers/common/cnxk/roc_npc.c
+++ b/drivers/common/cnxk/roc_npc.c
@@ -943,9 +943,35 @@ npc_rss_action_configure(struct roc_npc *roc_npc,
uint8_t key[ROC_NIX_RSS_KEY_LEN];
const uint8_t *key_ptr;
uint8_t flowkey_algx;
+ uint32_t key_len;
uint16_t *reta;
int rc;
+ roc_nix_rss_key_get(roc_nix, key);
+ if (rss->key == NULL) {
+ key_ptr = key;
+ } else {
+ key_len = rss->key_len;
+ if (key_len > ROC_NIX_RSS_KEY_LEN)
+ key_len = ROC_NIX_RSS_KEY_LEN;
+
+ for (i = 0; i < key_len; i++) {
+ if (key[i] != rss->key[i]) {
+ plt_err("RSS key config not supported");
+ plt_err("New Key:");
+ for (i = 0; i < key_len; i++)
+ plt_dump_no_nl("0x%.2x ", rss->key[i]);
+ plt_dump_no_nl("\n");
+ plt_err("Configured Key:");
+ for (i = 0; i < ROC_NIX_RSS_KEY_LEN; i++)
+ plt_dump_no_nl("0x%.2x ", key[i]);
+ plt_dump_no_nl("\n");
+ return -ENOTSUP;
+ }
+ }
+ key_ptr = rss->key;
+ }
+
rc = npc_rss_free_grp_get(npc, &rss_grp_idx);
/* RSS group :0 is not usable for flow rss action */
if (rc < 0 || rss_grp_idx == 0)
@@ -960,13 +986,6 @@ npc_rss_action_configure(struct roc_npc *roc_npc,
*rss_grp = rss_grp_idx;
- if (rss->key == NULL) {
- roc_nix_rss_key_default_fill(roc_nix, key);
- key_ptr = key;
- } else {
- key_ptr = rss->key;
- }
-
roc_nix_rss_key_set(roc_nix, key_ptr);
/* If queue count passed in the rss action is less than
--
2.39.2
