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igb: use netdev_rss_key_fill() helper

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Use of well known RSS key increases attack surface.
Switch to a random one, using generic helper so that all
ports share a common key.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Cc: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Eric Dumazet 2014-11-16 06:23:14 -08:00 committed by David S. Miller
parent 22f258a1cc
commit eb31f8493e
1 changed files with 3 additions and 6 deletions
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9
drivers/net/ethernet/intel/igb/igb_main.c
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@ -3372,14 +3372,11 @@ static void igb_setup_mrqc(struct igb_adapter *adapter)
struct e1000_hw *hw = &adapter->hw;
u32 mrqc, rxcsum;
u32 j, num_rx_queues;
static const u32 rsskey[10] = { 0xDA565A6D, 0xC20E5B25, 0x3D256741,
0xB08FA343, 0xCB2BCAD0, 0xB4307BAE,
0xA32DCB77, 0x0CF23080, 0x3BB7426A,
0xFA01ACBE };
u32 rss_key[10];
/* Fill out hash function seeds */
netdev_rss_key_fill(rss_key, sizeof(rss_key));
for (j = 0; j < 10; j++)
wr32(E1000_RSSRK(j), rsskey[j]);
wr32(E1000_RSSRK(j), rss_key[j]);
num_rx_queues = adapter->rss_queues;