netdev - [PATCH net-next v2 06/13] bnxt_en: Add bnxt_lookup_ntp_filter_from

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20231223042210.102485-7-michael.chan@broadcom.com>
Date: Fri, 22 Dec 2023 20:22:03 -0800
From: Michael Chan <michael.chan@...adcom.com>
To: davem@...emloft.net
Cc: netdev@...r.kernel.org,
	edumazet@...gle.com,
	kuba@...nel.org,
	pabeni@...hat.com,
	pavan.chebbi@...adcom.com,
	andrew.gospodarek@...adcom.com
Subject: [PATCH net-next v2 06/13] bnxt_en: Add bnxt_lookup_ntp_filter_from_idx() function

Add the helper function to look up the ntuple filter from the
hash index and use it in bnxt_rx_flow_steer().  The helper function
will also be used by user defined ntuple filters in the next
patches.

Reviewed-by: Andy Gospodarek <andrew.gospodarek@...adcom.com>
Reviewed-by: Pavan Chebbi <pavan.chebbi@...adcom.com>
Signed-off-by: Michael Chan <michael.chan@...adcom.com>
---
 drivers/net/ethernet/broadcom/bnxt/bnxt.c | 26 +++++++++++++++++------
 1 file changed, 20 insertions(+), 6 deletions(-)

diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
index e9b382832a14..7027391316e5 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
@@ -13899,6 +13899,21 @@ static bool bnxt_fltr_match(struct bnxt_ntuple_filter *f1,
 	return false;
 }
 
+static struct bnxt_ntuple_filter *
+bnxt_lookup_ntp_filter_from_idx(struct bnxt *bp,
+				struct bnxt_ntuple_filter *fltr, u32 idx)
+{
+	struct bnxt_ntuple_filter *f;
+	struct hlist_head *head;
+
+	head = &bp->ntp_fltr_hash_tbl[idx];
+	hlist_for_each_entry_rcu(f, head, base.hash) {
+		if (bnxt_fltr_match(f, fltr))
+			return f;
+	}
+	return NULL;
+}
+
 static int bnxt_rx_flow_steer(struct net_device *dev, const struct sk_buff *skb,
 			      u16 rxq_index, u32 flow_id)
 {
@@ -13963,12 +13978,11 @@ static int bnxt_rx_flow_steer(struct net_device *dev, const struct sk_buff *skb,
 	idx = bnxt_get_ntp_filter_idx(bp, fkeys, skb);
 	head = &bp->ntp_fltr_hash_tbl[idx];
 	rcu_read_lock();
-	hlist_for_each_entry_rcu(fltr, head, base.hash) {
-		if (bnxt_fltr_match(fltr, new_fltr)) {
-			rc = fltr->base.sw_id;
-			rcu_read_unlock();
-			goto err_free;
-		}
+	fltr = bnxt_lookup_ntp_filter_from_idx(bp, new_fltr, idx);
+	if (fltr) {
+		rcu_read_unlock();
+		rc = fltr->base.sw_id;
+		goto err_free;
 	}
 	rcu_read_unlock();
 
-- 
2.30.1


Download attachment "smime.p7s" of type "application/pkcs7-signature" (4209 bytes)