diff options
| author | Eric Dumazet <edumazet@google.com> | 2014-11-16 06:23:08 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2014-11-16 15:59:11 -0500 |
| commit | 3964835644091b57cf24c33ea95de4b5a26a5b1f (patch) | |
| tree | cb16efd8a701e51437754d46a000bc2debc28d8c | |
| parent | e3ec69ca80a202f3a685c50daa18b63fbafcc536 (diff) | |
| download | blackbird-op-linux-3964835644091b57cf24c33ea95de4b5a26a5b1f.tar.gz blackbird-op-linux-3964835644091b57cf24c33ea95de4b5a26a5b1f.zip | |
tg3: use netdev_rss_key_fill() helper
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: Prashant Sreedharan <prashant@broadcom.com>
Cc: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | drivers/net/ethernet/broadcom/tg3.c | 17 |
1 files changed, 6 insertions, 11 deletions
diff --git a/drivers/net/ethernet/broadcom/tg3.c b/drivers/net/ethernet/broadcom/tg3.c index dbb41c1923e6..2dc001559a97 100644 --- a/drivers/net/ethernet/broadcom/tg3.c +++ b/drivers/net/ethernet/broadcom/tg3.c @@ -10540,19 +10540,14 @@ static int tg3_reset_hw(struct tg3 *tp, bool reset_phy) udelay(100); if (tg3_flag(tp, ENABLE_RSS)) { + u32 rss_key[10]; + tg3_rss_write_indir_tbl(tp); - /* Setup the "secret" hash key. */ - tw32(MAC_RSS_HASH_KEY_0, 0x5f865437); - tw32(MAC_RSS_HASH_KEY_1, 0xe4ac62cc); - tw32(MAC_RSS_HASH_KEY_2, 0x50103a45); - tw32(MAC_RSS_HASH_KEY_3, 0x36621985); - tw32(MAC_RSS_HASH_KEY_4, 0xbf14c0e8); - tw32(MAC_RSS_HASH_KEY_5, 0x1bc27a1e); - tw32(MAC_RSS_HASH_KEY_6, 0x84f4b556); - tw32(MAC_RSS_HASH_KEY_7, 0x094ea6fe); - tw32(MAC_RSS_HASH_KEY_8, 0x7dda01e7); - tw32(MAC_RSS_HASH_KEY_9, 0xc04d7481); + netdev_rss_key_fill(rss_key, 10 * sizeof(u32)); + + for (i = 0; i < 10 ; i++) + tw32(MAC_RSS_HASH_KEY_0 + i*4, rss_key[i]); } tp->rx_mode = RX_MODE_ENABLE; |
