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| Started by | Ben Hutchings <ben@decadent.org.uk> |
|---|---|
| First post | 2017-03-10 15:40 +0100 |
| Last post | 2017-03-10 15:40 +0100 |
| Articles | 1 — 1 participant |
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[PATCH 3.16 019/370] enic: set skb->hash type properly Ben Hutchings <ben@decadent.org.uk> - 2017-03-10 15:40 +0100
| From | Ben Hutchings <ben@decadent.org.uk> |
|---|---|
| Date | 2017-03-10 15:40 +0100 |
| Subject | [PATCH 3.16 019/370] enic: set skb->hash type properly |
| Message-ID | <tjtS3-5k0-29@gated-at.bofh.it> |
3.16.42-rc1 review patch. If anyone has any objections, please let me know.
------------------
From: Govindarajulu Varadarajan <_govind@gmx.com>
commit 17197236d62c44da127be461c63ac5cc2cce1e53 upstream.
Driver sets the skb l4/l3 hash based on NIC_CFG_RSS_HASH_TYPE_*,
which is bit mask. This is wrong. Hw actually provides us enum.
Use CQ_ENET_RQ_DESC_RSS_TYPE_* to set l3 and l4 hash type.
Fixes: bf751ba802fe ("driver/net: enic: record q_number and rss_hash for skb")
Signed-off-by: Govindarajulu Varadarajan <_govind@gmx.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
[bwh: Backported to 3.16: drop the version bump]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
--- a/drivers/net/ethernet/cisco/enic/enic_main.c
+++ b/drivers/net/ethernet/cisco/enic/enic_main.c
@@ -1033,12 +1033,18 @@ static void enic_rq_indicate_buf(struct
skb->protocol = eth_type_trans(skb, netdev);
skb_record_rx_queue(skb, q_number);
if (netdev->features & NETIF_F_RXHASH) {
- skb_set_hash(skb, rss_hash,
- (rss_type &
- (NIC_CFG_RSS_HASH_TYPE_TCP_IPV6_EX |
- NIC_CFG_RSS_HASH_TYPE_TCP_IPV6 |
- NIC_CFG_RSS_HASH_TYPE_TCP_IPV4)) ?
- PKT_HASH_TYPE_L4 : PKT_HASH_TYPE_L3);
+ switch (rss_type) {
+ case CQ_ENET_RQ_DESC_RSS_TYPE_TCP_IPv4:
+ case CQ_ENET_RQ_DESC_RSS_TYPE_TCP_IPv6:
+ case CQ_ENET_RQ_DESC_RSS_TYPE_TCP_IPv6_EX:
+ skb_set_hash(skb, rss_hash, PKT_HASH_TYPE_L4);
+ break;
+ case CQ_ENET_RQ_DESC_RSS_TYPE_IPv4:
+ case CQ_ENET_RQ_DESC_RSS_TYPE_IPv6:
+ case CQ_ENET_RQ_DESC_RSS_TYPE_IPv6_EX:
+ skb_set_hash(skb, rss_hash, PKT_HASH_TYPE_L3);
+ break;
+ }
}
/* Hardware does not provide whole packet checksum. It only
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