enic: add support for set/get rss hash key
This patch adds support for setting/getting rss hash key using ethtool.
v2:
respin patch to support RSS hash function changes.
Signed-off-by: Govindarajulu Varadarajan <_govind@gmx.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/ethernet/cisco/enic/enic_main.c b/drivers/net/ethernet/cisco/enic/enic_main.c
index 86ee350..868d0f6 100644
--- a/drivers/net/ethernet/cisco/enic/enic_main.c
+++ b/drivers/net/ethernet/cisco/enic/enic_main.c
@@ -1888,11 +1888,10 @@
return err;
}
-static int enic_set_rsskey(struct enic *enic)
+int __enic_set_rsskey(struct enic *enic)
{
union vnic_rss_key *rss_key_buf_va;
dma_addr_t rss_key_buf_pa;
- u8 rss_key[ENIC_RSS_LEN];
int i, kidx, bidx, err;
rss_key_buf_va = pci_zalloc_consistent(enic->pdev,
@@ -1901,11 +1900,10 @@
if (!rss_key_buf_va)
return -ENOMEM;
- netdev_rss_key_fill(rss_key, ENIC_RSS_LEN);
for (i = 0; i < ENIC_RSS_LEN; i++) {
kidx = i / ENIC_RSS_BYTES_PER_KEY;
bidx = i % ENIC_RSS_BYTES_PER_KEY;
- rss_key_buf_va->key[kidx].b[bidx] = rss_key[i];
+ rss_key_buf_va->key[kidx].b[bidx] = enic->rss_key[i];
}
spin_lock_bh(&enic->devcmd_lock);
err = enic_set_rss_key(enic,
@@ -1919,6 +1917,13 @@
return err;
}
+static int enic_set_rsskey(struct enic *enic)
+{
+ netdev_rss_key_fill(enic->rss_key, ENIC_RSS_LEN);
+
+ return __enic_set_rsskey(enic);
+}
+
static int enic_set_rsscpu(struct enic *enic, u8 rss_hash_bits)
{
dma_addr_t rss_cpu_buf_pa;