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| author | Jesse Brandeburg <jesse.brandeburg@intel.com> | 2014-06-03 23:50:12 +0000 |
|---|---|---|
| committer | Jeff Kirsher <jeffrey.t.kirsher@intel.com> | 2014-06-19 20:22:02 -0700 |
| commit | 407e063c92c51420c3e919203de47e144dec6934 (patch) | |
| tree | 63c14d9dced0f0e9820d9f51379d8592c663c53c /drivers | |
| parent | 4c33f83a02a065a3c3751a862c2231e38b3da99e (diff) | |
| download | lwn-407e063c92c51420c3e919203de47e144dec6934.tar.gz lwn-407e063c92c51420c3e919203de47e144dec6934.zip | |
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 <jesse.brandeburg@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/ethernet/intel/i40e/i40e_main.c | 14 |
1 files changed, 14 insertions, 0 deletions
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; |