From 407e063c92c51420c3e919203de47e144dec6934 Mon Sep 17 00:00:00 2001 From: Jesse Brandeburg Date: Tue, 3 Jun 2014 23:50:12 +0000 Subject: [PATCH] i40e: workaround NVM GLQF_HKEY The NVM wasn't filling in the GLQF_HKEY register on some old NVM versions. If this is the case, fill in some values so receive with flow rules works right. Change-ID: Ic737888ee68f96efb4cf8a1a49d2301615e09ed2 Signed-off-by: Jesse Brandeburg Signed-off-by: Jeff Kirsher --- drivers/net/ethernet/intel/i40e/i40e_main.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c index 374f36b84513..95c331abee43 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_main.c +++ b/drivers/net/ethernet/intel/i40e/i40e_main.c @@ -5463,6 +5463,20 @@ static void i40e_fdir_sb_setup(struct i40e_pf *pf) struct i40e_vsi *vsi; int i; + /* quick workaround for an NVM issue that leaves a critical register + * uninitialized + */ + if (!rd32(&pf->hw, I40E_GLQF_HKEY(0))) { + static const u32 hkey[] = { + 0xe640d33f, 0xcdfe98ab, 0x73fa7161, 0x0d7a7d36, + 0xeacb7d61, 0xaa4f05b6, 0x9c5c89ed, 0xfc425ddb, + 0xa4654832, 0xfc7461d4, 0x8f827619, 0xf5c63c21, + 0x95b3a76d}; + + for (i = 0; i <= I40E_GLQF_HKEY_MAX_INDEX; i++) + wr32(&pf->hw, I40E_GLQF_HKEY(i), hkey[i]); + } + if (!(pf->flags & I40E_FLAG_FD_SB_ENABLED)) return; -- 2.34.1