diff options
Diffstat (limited to 'drivers/net/ethernet/intel/igb/igb_main.c')
| -rw-r--r-- | drivers/net/ethernet/intel/igb/igb_main.c | 28 |
1 files changed, 7 insertions, 21 deletions
diff --git a/drivers/net/ethernet/intel/igb/igb_main.c b/drivers/net/ethernet/intel/igb/igb_main.c index 1acd9c06026..df33c4b8fa8 100644 --- a/drivers/net/ethernet/intel/igb/igb_main.c +++ b/drivers/net/ethernet/intel/igb/igb_main.c @@ -3126,7 +3126,7 @@ static void igb_setup_mrqc(struct igb_adapter *adapter) { struct e1000_hw *hw = &adapter->hw; u32 mrqc, rxcsum; - u32 j, num_rx_queues, shift = 0; + u32 j, num_rx_queues; static const u32 rsskey[10] = { 0xDA565A6D, 0xC20E5B25, 0x3D256741, 0xB08FA343, 0xCB2BCAD0, 0xB4307BAE, 0xA32DCB77, 0x0CF23080, 0x3BB7426A, @@ -3139,35 +3139,21 @@ static void igb_setup_mrqc(struct igb_adapter *adapter) num_rx_queues = adapter->rss_queues; switch (hw->mac.type) { - case e1000_82575: - shift = 6; - break; case e1000_82576: /* 82576 supports 2 RSS queues for SR-IOV */ - if (adapter->vfs_allocated_count) { - shift = 3; + if (adapter->vfs_allocated_count) num_rx_queues = 2; - } break; default: break; } - /* Populate the indirection table 4 entries at a time. To do this - * we are generating the results for n and n+2 and then interleaving - * those with the results with n+1 and n+3. - */ - for (j = 0; j < IGB_RETA_SIZE / 4; j++) { - /* first pass generates n and n+2 */ - u32 base = ((j * 0x00040004) + 0x00020000) * num_rx_queues; - u32 reta = (base & 0x07800780) >> (7 - shift); - - /* second pass generates n+1 and n+3 */ - base += 0x00010001 * num_rx_queues; - reta |= (base & 0x07800780) << (1 + shift); - - wr32(E1000_RETA(j), reta); + if (adapter->rss_indir_tbl_init != num_rx_queues) { + for (j = 0; j < IGB_RETA_SIZE; j++) + adapter->rss_indir_tbl[j] = (j * num_rx_queues) / IGB_RETA_SIZE; + adapter->rss_indir_tbl_init = num_rx_queues; } + igb_write_rss_indir_tbl(adapter); /* Disable raw packet checksumming so that RSS hash is placed in * descriptor on writeback. No need to enable TCP/UDP/IP checksum |