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| author |   Thomas Falcon <tlfalcon@linux.vnet.ibm.com> | 2017-12-18 12:52:40 -0600 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2017-12-19 14:09:33 -0500 |
| commit | 4eb50ceb5c156a166c0b00ac27f0ff3a0943cdfb (patch) | |
| tree | 178a22b00a825f6b48be9a511384e63648442eee /drivers/net/ethernet/ibm/ibmvnic.c | |
| parent | Merge branch 'ibmvnic-Fix-and-increase-maximum-TX-RX-queues' (diff) | |
| download | linux-dev-4eb50ceb5c156a166c0b00ac27f0ff3a0943cdfb.tar.xz linux-dev-4eb50ceb5c156a166c0b00ac27f0ff3a0943cdfb.zip | |
ibmvnic: Include header descriptor support for ARP packets
In recent tests with new adapters, it was discovered that ARP
packets were not being properly processed. This patch adds
support for ARP packet headers to be passed to backing adapters,
if necessary.
Signed-off-by: Thomas Falcon <tlfalcon@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to '')
| -rw-r--r-- | drivers/net/ethernet/ibm/ibmvnic.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/net/ethernet/ibm/ibmvnic.c b/drivers/net/ethernet/ibm/ibmvnic.c index df6d91116b65..6911b7cc06c5 100644 --- a/drivers/net/ethernet/ibm/ibmvnic.c +++ b/drivers/net/ethernet/ibm/ibmvnic.c @@ -59,6 +59,7 @@ #include <linux/mm.h> #include <linux/ethtool.h> #include <linux/proc_fs.h> +#include <linux/if_arp.h> #include <linux/in.h> #include <linux/ip.h> #include <linux/ipv6.h> @@ -1153,6 +1154,9 @@ static int build_hdr_data(u8 hdr_field, struct sk_buff *skb, hdr_len[2] = tcp_hdrlen(skb); else if (ipv6_hdr(skb)->nexthdr == IPPROTO_UDP) hdr_len[2] = sizeof(struct udphdr); + } else if (skb->protocol == htons(ETH_P_ARP)) { + hdr_len[1] = arp_hdr_len(skb->dev); + hdr_len[2] = 0; } memset(hdr_data, 0, 120); @@ -1386,7 +1390,8 @@ static int ibmvnic_xmit(struct sk_buff *skb, struct net_device *netdev) /* determine if l2/3/4 headers are sent to firmware */ if ((*hdrs >> 7) & 1 && (skb->protocol == htons(ETH_P_IP) || - skb->protocol == htons(ETH_P_IPV6))) { + skb->protocol == htons(ETH_P_IPV6) || + skb->protocol == htons(ETH_P_ARP))) { build_hdr_descs_arr(tx_buff, &num_entries, *hdrs); tx_crq.v1.n_crq_elem = num_entries; tx_buff->indir_arr[0] = tx_crq; |