diff options
| author | Sasha Neftin <sasha.neftin@intel.com> | 2021-07-04 10:11:41 +0300 |
|---|---|---|
| committer | Tony Nguyen <anthony.l.nguyen@intel.com> | 2021-08-20 18:38:01 +0300 |
| commit | 44a13a5d99c71bf9e1676d9e51679daf4d7b3d73 (patch) | |
| tree | 2c034c750a6c646182bb7e8c037adc9cd4ba0185 /drivers/net/ethernet/intel/e1000e/ich8lan.h | |
| parent | 691bd4d7761992914a0e83c27a4ce57d01474cda (diff) | |
| download | linux-44a13a5d99c71bf9e1676d9e51679daf4d7b3d73.tar.xz | |
e1000e: Fix the max snoop/no-snoop latency for 10M
We should decode the latency and the max_latency before directly compare.
The latency should be presented as lat_enc = scale x value:
lat_enc_d = (lat_enc & 0x0x3ff) x (1U << (5*((max_ltr_enc & 0x1c00)
>> 10)))
Fixes: cf8fb73c23aa ("e1000e: add support for LTR on I217/I218")
Suggested-by: Yee Li <seven.yi.lee@gmail.com>
Signed-off-by: Sasha Neftin <sasha.neftin@intel.com>
Tested-by: Dvora Fuxbrumer <dvorax.fuxbrumer@linux.intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Diffstat (limited to 'drivers/net/ethernet/intel/e1000e/ich8lan.h')
| -rw-r--r-- | drivers/net/ethernet/intel/e1000e/ich8lan.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/net/ethernet/intel/e1000e/ich8lan.h b/drivers/net/ethernet/intel/e1000e/ich8lan.h index 1502895eb45d..e757896287eb 100644 --- a/drivers/net/ethernet/intel/e1000e/ich8lan.h +++ b/drivers/net/ethernet/intel/e1000e/ich8lan.h @@ -274,8 +274,11 @@ /* Latency Tolerance Reporting */ #define E1000_LTRV 0x000F8 +#define E1000_LTRV_VALUE_MASK 0x000003FF #define E1000_LTRV_SCALE_MAX 5 #define E1000_LTRV_SCALE_FACTOR 5 +#define E1000_LTRV_SCALE_SHIFT 10 +#define E1000_LTRV_SCALE_MASK 0x00001C00 #define E1000_LTRV_REQ_SHIFT 15 #define E1000_LTRV_NOSNOOP_SHIFT 16 #define E1000_LTRV_SEND (1 << 30) |