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* [dpdk-dev] [PATCH] net/netvsc: ignore NVS_TYPE_TXTBL_NOTE while executing a sync command
@ 2020-12-11  7:52 Long Li
  2020-12-11 17:21 ` Stephen Hemminger
  0 siblings, 1 reply; 3+ messages in thread
From: Long Li @ 2020-12-11  7:52 UTC (permalink / raw)
  To: Stephen Hemminger; +Cc: dev, Long Li, stable

From: Long Li <longli@microsoft.com>

On netvsc initialization, the host VSP may send a NVS_TYPE_TXTBL_NOTE packet
while executing a VSP command synchronously.

Ignore this packet as we don't use it for DPDK.

Cc: stable@dpdk.org
Signed-off-by: Long Li <longli@microsoft.com>
---
 drivers/net/netvsc/hn_nvs.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/net/netvsc/hn_nvs.c b/drivers/net/netvsc/hn_nvs.c
index a0ee7d8bfa..b6aa07cc5f 100644
--- a/drivers/net/netvsc/hn_nvs.c
+++ b/drivers/net/netvsc/hn_nvs.c
@@ -97,8 +97,13 @@ __hn_nvs_execute(struct hn_data *hv,
 	hdr = (struct hn_nvs_hdr *)buffer;
 
 	/* Silently drop received packets while waiting for response */
-	if (hdr->type == NVS_TYPE_RNDIS) {
+	switch (hdr->type) {
+	case NVS_TYPE_RNDIS:
 		hn_nvs_ack_rxbuf(chan, xactid);
+		/* fallthrough */
+
+	case NVS_TYPE_TXTBL_NOTE:
+		PMD_DRV_LOG(NOTICE, "discard packet type %x", hdr->type);
 		goto retry;
 	}
 
-- 
2.25.1


^ permalink raw reply	[flat|nested] 3+ messages in thread

end of thread, other threads:[~2020-12-11 20:05 UTC | newest]

Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed)
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2020-12-11  7:52 [dpdk-dev] [PATCH] net/netvsc: ignore NVS_TYPE_TXTBL_NOTE while executing a sync command Long Li
2020-12-11 17:21 ` Stephen Hemminger
2020-12-11 20:05   ` Long Li

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