Dear list,
I have a 82572 (driver e1000e) and a 82576 (driver igb) in hand. The
following code was added in *_configure_rx to turn RSS on.
======================================
static const u8 rsshash[40] = {
0x6d, 0x5a, 0x56, 0xda, 0x25, 0x5b, 0x0e, 0xc2,
0x41, 0x67, 0x25, 0x3d, 0x43, 0xa3, 0x8f, 0xb0,
0xd0, 0xca, 0x2b, 0xcb, 0xae, 0x7b, 0x30, 0xb4,
0x77, 0xcb, 0x2d, 0xa3, 0x80, 0x30, 0xf2, 0x0c,
0x6a, 0x42, 0xb7, 0x3b, 0xbe, 0xac, 0x01, 0xfa };
u32 mrqc;
u32 j;
mrqc = 0x00000002;
/* Fill out hash function seeds */
for (j = 0; j < 10; j++) {
u32 rsskey = rsshash[(j * 4)];
rsskey |= rsshash[(j * 4) + 1] << 8;
rsskey |= rsshash[(j * 4) + 2] << 16;
rsskey |= rsshash[(j * 4) + 3] << 24;
E1000_WRITE_REG_ARRAY(hw, E1000_RSSRK(0), j, rsskey);
}
mrqc |= (E1000_MRQC_RSS_FIELD_IPV4 |
E1000_MRQC_RSS_FIELD_IPV4_TCP);
E1000_WRITE_REG(hw, E1000_MRQC, mrqc);
rxcsum = E1000_READ_REG(hw, E1000_RXCSUM);
rxcsum |= E1000_RXCSUM_PCSD;
E1000_WRITE_REG(hw, E1000_RXCSUM, rxcsum);
========================================
According to the manual, developers can get a Dword result of RSS hash
function to verify it. However, I did't get the right data. It seems there
is some misunderstanding. My question is how can I get this Dword result
correctly?
Thanks in advance.
--Junchang
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