From: Simei Su <simei.su@intel.com>
Date: Wed, 28 Jul 2021 02:24:29 +0000 (+0800)
Subject: net/ice: fix max entry number for ACL normal priority
X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=4f72c21fdffa9074f0df9d5855522735ec61f4d7;p=dpdk.git

net/ice: fix max entry number for ACL normal priority

For ACL, there are three entry priorities: LOW, NORMAL, HIGH.
Low priority starts from the highest index, 25% of total entries;
Normal priority starts from the highest index, 50% of total entries;
High priority starts from the lowest index, 25% of total entries.

Each TCAM block has 512 entries of 40 bits. Currently, there is a
scenario in which multiple TCAM blocks are cascaded. It means the
total entries are 512. The default priority is NORMAL, so the max
entry is 256, not 512. This patch changes the max entry number for
NORMAL priority.

Fixes: 40d466fa9f76 ("net/ice: support ACL filter in DCF")
Cc: stable@dpdk.org

Signed-off-by: Simei Su <simei.su@intel.com>
Acked-by: Qi Zhang <qi.z.zhang@intel.com>
---

diff --git a/drivers/net/ice/ice_acl_filter.c b/drivers/net/ice/ice_acl_filter.c
index 33756099c6..0c15a7036c 100644
--- a/drivers/net/ice/ice_acl_filter.c
+++ b/drivers/net/ice/ice_acl_filter.c
@@ -430,7 +430,7 @@ ice_acl_hw_set_conf(struct ice_pf *pf, struct ice_fdir_fltr *input,
 	/* For IPV4_OTHER type, should add entry for all types.
 	 * For IPV4_UDP/TCP/SCTP type, only add entry for each.
 	 */
-	if (slot_id < MAX_ACL_ENTRIES) {
+	if (slot_id < MAX_ACL_NORMAL_ENTRIES) {
 		entry_id = ((uint64_t)flow_type << 32) | slot_id;
 		ret = ice_flow_add_entry(hw, blk, flow_type,
 					 entry_id, pf->main_vsi->idx,
@@ -444,7 +444,7 @@ ice_acl_hw_set_conf(struct ice_pf *pf, struct ice_fdir_fltr *input,
 		pf->acl.hw_entry_id[slot_id] = hw_entry;
 	} else {
 		PMD_DRV_LOG(ERR, "Exceed the maximum entry number(%d)"
-			    " HW supported!", MAX_ACL_ENTRIES);
+			    " HW supported!", MAX_ACL_NORMAL_ENTRIES);
 		return -1;
 	}
 
diff --git a/drivers/net/ice/ice_ethdev.h b/drivers/net/ice/ice_ethdev.h
index edafdf168b..b4bf651c1c 100644
--- a/drivers/net/ice/ice_ethdev.h
+++ b/drivers/net/ice/ice_ethdev.h
@@ -50,7 +50,7 @@
 #define ICE_PKG_FILE_SEARCH_PATH_UPDATES "/lib/firmware/updates/intel/ice/ddp/"
 #define ICE_MAX_PKG_FILENAME_SIZE   256
 
-#define MAX_ACL_ENTRIES    512
+#define MAX_ACL_NORMAL_ENTRIES    256
 
 /**
  * vlan_id is a 12 bit number.
@@ -408,7 +408,7 @@ struct ice_acl_conf {
 struct ice_acl_info {
 	struct ice_acl_conf conf;
 	struct rte_bitmap *slots;
-	uint64_t hw_entry_id[MAX_ACL_ENTRIES];
+	uint64_t hw_entry_id[MAX_ACL_NORMAL_ENTRIES];
 };
 
 struct ice_pf {