blob: 62f014695f0fc69918e73c70c1485b2a24a4e896 [file] [log] [blame]
From b8ea77f627890b40fb37cdb31d190b06ff889868 Mon Sep 17 00:00:00 2001
From: Dmitry Bogdanov <dmitry.bogdanov@aquantia.com>
Date: Fri, 11 Oct 2019 13:45:22 +0000
Subject: [PATCH] net: aquantia: do not pass lro session with invalid tcp
checksum
commit d08b9a0a3ebdf71b0aabe576c7dd48e57e80e0f0 upstream.
Individual descriptors on LRO TCP session should be checked
for CRC errors. It was discovered that HW recalculates
L4 checksums on LRO session and does not break it up on bad L4
csum.
Thus, driver should aggregate HW LRO L4 statuses from all individual
buffers of LRO session and drop packet if one of the buffers has bad
L4 checksum.
Fixes: f38f1ee8aeb2 ("net: aquantia: check rx csum for all packets in LRO session")
Signed-off-by: Dmitry Bogdanov <dmitry.bogdanov@aquantia.com>
Signed-off-by: Igor Russkikh <igor.russkikh@aquantia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
diff --git a/drivers/net/ethernet/aquantia/atlantic/aq_ring.c b/drivers/net/ethernet/aquantia/atlantic/aq_ring.c
index 2a7b91ed17c5..5d650c58e6c5 100644
--- a/drivers/net/ethernet/aquantia/atlantic/aq_ring.c
+++ b/drivers/net/ethernet/aquantia/atlantic/aq_ring.c
@@ -313,6 +313,7 @@ int aq_ring_rx_clean(struct aq_ring_s *self,
break;
buff->is_error |= buff_->is_error;
+ buff->is_cso_err |= buff_->is_cso_err;
} while (!buff_->is_eop);
@@ -320,7 +321,7 @@ int aq_ring_rx_clean(struct aq_ring_s *self,
err = 0;
goto err_exit;
}
- if (buff->is_error) {
+ if (buff->is_error || buff->is_cso_err) {
buff_ = buff;
do {
next_ = buff_->next,
--
2.7.4